/src/usrsctp/usrsctplib/netinet/sctputil.c
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1 | | /*- |
2 | | * SPDX-License-Identifier: BSD-3-Clause |
3 | | * |
4 | | * Copyright (c) 2001-2008, by Cisco Systems, Inc. All rights reserved. |
5 | | * Copyright (c) 2008-2012, by Randall Stewart. All rights reserved. |
6 | | * Copyright (c) 2008-2012, by Michael Tuexen. All rights reserved. |
7 | | * |
8 | | * Redistribution and use in source and binary forms, with or without |
9 | | * modification, are permitted provided that the following conditions are met: |
10 | | * |
11 | | * a) Redistributions of source code must retain the above copyright notice, |
12 | | * this list of conditions and the following disclaimer. |
13 | | * |
14 | | * b) Redistributions in binary form must reproduce the above copyright |
15 | | * notice, this list of conditions and the following disclaimer in |
16 | | * the documentation and/or other materials provided with the distribution. |
17 | | * |
18 | | * c) Neither the name of Cisco Systems, Inc. nor the names of its |
19 | | * contributors may be used to endorse or promote products derived |
20 | | * from this software without specific prior written permission. |
21 | | * |
22 | | * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
23 | | * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, |
24 | | * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
25 | | * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE |
26 | | * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR |
27 | | * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF |
28 | | * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS |
29 | | * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN |
30 | | * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) |
31 | | * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF |
32 | | * THE POSSIBILITY OF SUCH DAMAGE. |
33 | | */ |
34 | | |
35 | | #include <netinet/sctp_os.h> |
36 | | #include <netinet/sctp_pcb.h> |
37 | | #include <netinet/sctputil.h> |
38 | | #include <netinet/sctp_var.h> |
39 | | #include <netinet/sctp_sysctl.h> |
40 | | #ifdef INET6 |
41 | | #if defined(__Userspace__) || defined(__FreeBSD__) |
42 | | #include <netinet6/sctp6_var.h> |
43 | | #endif |
44 | | #endif |
45 | | #include <netinet/sctp_header.h> |
46 | | #include <netinet/sctp_output.h> |
47 | | #include <netinet/sctp_uio.h> |
48 | | #include <netinet/sctp_timer.h> |
49 | | #include <netinet/sctp_indata.h> |
50 | | #include <netinet/sctp_auth.h> |
51 | | #include <netinet/sctp_asconf.h> |
52 | | #include <netinet/sctp_bsd_addr.h> |
53 | | #if defined(__Userspace__) |
54 | | #include <netinet/sctp_constants.h> |
55 | | #endif |
56 | | #if defined(__FreeBSD__) && !defined(__Userspace__) |
57 | | #include <netinet/sctp_kdtrace.h> |
58 | | #if defined(INET6) || defined(INET) |
59 | | #include <netinet/tcp_var.h> |
60 | | #endif |
61 | | #include <netinet/udp.h> |
62 | | #include <netinet/udp_var.h> |
63 | | #include <sys/proc.h> |
64 | | #ifdef INET6 |
65 | | #include <netinet/icmp6.h> |
66 | | #endif |
67 | | #endif |
68 | | |
69 | | #if defined(_WIN32) && !defined(__Userspace__) |
70 | | #if !defined(SCTP_LOCAL_TRACE_BUF) |
71 | | #include "eventrace_netinet.h" |
72 | | #include "sctputil.tmh" /* this is the file that will be auto generated */ |
73 | | #endif |
74 | | #else |
75 | | #ifndef KTR_SCTP |
76 | | #define KTR_SCTP KTR_SUBSYS |
77 | | #endif |
78 | | #endif |
79 | | |
80 | | extern const struct sctp_cc_functions sctp_cc_functions[]; |
81 | | extern const struct sctp_ss_functions sctp_ss_functions[]; |
82 | | |
83 | | void |
84 | | sctp_sblog(struct sockbuf *sb, struct sctp_tcb *stcb, int from, int incr) |
85 | 0 | { |
86 | | #if defined(SCTP_LOCAL_TRACE_BUF) |
87 | | struct sctp_cwnd_log sctp_clog; |
88 | | |
89 | | sctp_clog.x.sb.stcb = stcb; |
90 | | sctp_clog.x.sb.so_sbcc = SCTP_SBAVAIL(sb); |
91 | | if (stcb) |
92 | | sctp_clog.x.sb.stcb_sbcc = stcb->asoc.sb_cc; |
93 | | else |
94 | | sctp_clog.x.sb.stcb_sbcc = 0; |
95 | | sctp_clog.x.sb.incr = incr; |
96 | | SCTP_CTR6(KTR_SCTP, "SCTP:%d[%d]:%x-%x-%x-%x", |
97 | | SCTP_LOG_EVENT_SB, |
98 | | from, |
99 | | sctp_clog.x.misc.log1, |
100 | | sctp_clog.x.misc.log2, |
101 | | sctp_clog.x.misc.log3, |
102 | | sctp_clog.x.misc.log4); |
103 | | #endif |
104 | 0 | } |
105 | | |
106 | | void |
107 | | sctp_log_closing(struct sctp_inpcb *inp, struct sctp_tcb *stcb, int16_t loc) |
108 | 0 | { |
109 | | #if defined(SCTP_LOCAL_TRACE_BUF) |
110 | | struct sctp_cwnd_log sctp_clog; |
111 | | |
112 | | sctp_clog.x.close.inp = (void *)inp; |
113 | | sctp_clog.x.close.sctp_flags = inp->sctp_flags; |
114 | | if (stcb) { |
115 | | sctp_clog.x.close.stcb = (void *)stcb; |
116 | | sctp_clog.x.close.state = (uint16_t)stcb->asoc.state; |
117 | | } else { |
118 | | sctp_clog.x.close.stcb = 0; |
119 | | sctp_clog.x.close.state = 0; |
120 | | } |
121 | | sctp_clog.x.close.loc = loc; |
122 | | SCTP_CTR6(KTR_SCTP, "SCTP:%d[%d]:%x-%x-%x-%x", |
123 | | SCTP_LOG_EVENT_CLOSE, |
124 | | 0, |
125 | | sctp_clog.x.misc.log1, |
126 | | sctp_clog.x.misc.log2, |
127 | | sctp_clog.x.misc.log3, |
128 | | sctp_clog.x.misc.log4); |
129 | | #endif |
130 | 0 | } |
131 | | |
132 | | void |
133 | | rto_logging(struct sctp_nets *net, int from) |
134 | 0 | { |
135 | | #if defined(SCTP_LOCAL_TRACE_BUF) |
136 | | struct sctp_cwnd_log sctp_clog; |
137 | | |
138 | | memset(&sctp_clog, 0, sizeof(sctp_clog)); |
139 | | sctp_clog.x.rto.net = (void *) net; |
140 | | sctp_clog.x.rto.rtt = net->rtt / 1000; |
141 | | SCTP_CTR6(KTR_SCTP, "SCTP:%d[%d]:%x-%x-%x-%x", |
142 | | SCTP_LOG_EVENT_RTT, |
143 | | from, |
144 | | sctp_clog.x.misc.log1, |
145 | | sctp_clog.x.misc.log2, |
146 | | sctp_clog.x.misc.log3, |
147 | | sctp_clog.x.misc.log4); |
148 | | #endif |
149 | 0 | } |
150 | | |
151 | | void |
152 | | sctp_log_strm_del_alt(struct sctp_tcb *stcb, uint32_t tsn, uint16_t sseq, uint16_t stream, int from) |
153 | 0 | { |
154 | | #if defined(SCTP_LOCAL_TRACE_BUF) |
155 | | struct sctp_cwnd_log sctp_clog; |
156 | | |
157 | | sctp_clog.x.strlog.stcb = stcb; |
158 | | sctp_clog.x.strlog.n_tsn = tsn; |
159 | | sctp_clog.x.strlog.n_sseq = sseq; |
160 | | sctp_clog.x.strlog.e_tsn = 0; |
161 | | sctp_clog.x.strlog.e_sseq = 0; |
162 | | sctp_clog.x.strlog.strm = stream; |
163 | | SCTP_CTR6(KTR_SCTP, "SCTP:%d[%d]:%x-%x-%x-%x", |
164 | | SCTP_LOG_EVENT_STRM, |
165 | | from, |
166 | | sctp_clog.x.misc.log1, |
167 | | sctp_clog.x.misc.log2, |
168 | | sctp_clog.x.misc.log3, |
169 | | sctp_clog.x.misc.log4); |
170 | | #endif |
171 | 0 | } |
172 | | |
173 | | void |
174 | | sctp_log_nagle_event(struct sctp_tcb *stcb, int action) |
175 | 0 | { |
176 | | #if defined(SCTP_LOCAL_TRACE_BUF) |
177 | | struct sctp_cwnd_log sctp_clog; |
178 | | |
179 | | sctp_clog.x.nagle.stcb = (void *)stcb; |
180 | | sctp_clog.x.nagle.total_flight = stcb->asoc.total_flight; |
181 | | sctp_clog.x.nagle.total_in_queue = stcb->asoc.total_output_queue_size; |
182 | | sctp_clog.x.nagle.count_in_queue = stcb->asoc.chunks_on_out_queue; |
183 | | sctp_clog.x.nagle.count_in_flight = stcb->asoc.total_flight_count; |
184 | | SCTP_CTR6(KTR_SCTP, "SCTP:%d[%d]:%x-%x-%x-%x", |
185 | | SCTP_LOG_EVENT_NAGLE, |
186 | | action, |
187 | | sctp_clog.x.misc.log1, |
188 | | sctp_clog.x.misc.log2, |
189 | | sctp_clog.x.misc.log3, |
190 | | sctp_clog.x.misc.log4); |
191 | | #endif |
192 | 0 | } |
193 | | |
194 | | void |
195 | | sctp_log_sack(uint32_t old_cumack, uint32_t cumack, uint32_t tsn, uint16_t gaps, uint16_t dups, int from) |
196 | 0 | { |
197 | | #if defined(SCTP_LOCAL_TRACE_BUF) |
198 | | struct sctp_cwnd_log sctp_clog; |
199 | | |
200 | | sctp_clog.x.sack.cumack = cumack; |
201 | | sctp_clog.x.sack.oldcumack = old_cumack; |
202 | | sctp_clog.x.sack.tsn = tsn; |
203 | | sctp_clog.x.sack.numGaps = gaps; |
204 | | sctp_clog.x.sack.numDups = dups; |
205 | | SCTP_CTR6(KTR_SCTP, "SCTP:%d[%d]:%x-%x-%x-%x", |
206 | | SCTP_LOG_EVENT_SACK, |
207 | | from, |
208 | | sctp_clog.x.misc.log1, |
209 | | sctp_clog.x.misc.log2, |
210 | | sctp_clog.x.misc.log3, |
211 | | sctp_clog.x.misc.log4); |
212 | | #endif |
213 | 0 | } |
214 | | |
215 | | void |
216 | | sctp_log_map(uint32_t map, uint32_t cum, uint32_t high, int from) |
217 | 0 | { |
218 | | #if defined(SCTP_LOCAL_TRACE_BUF) |
219 | | struct sctp_cwnd_log sctp_clog; |
220 | | |
221 | | memset(&sctp_clog, 0, sizeof(sctp_clog)); |
222 | | sctp_clog.x.map.base = map; |
223 | | sctp_clog.x.map.cum = cum; |
224 | | sctp_clog.x.map.high = high; |
225 | | SCTP_CTR6(KTR_SCTP, "SCTP:%d[%d]:%x-%x-%x-%x", |
226 | | SCTP_LOG_EVENT_MAP, |
227 | | from, |
228 | | sctp_clog.x.misc.log1, |
229 | | sctp_clog.x.misc.log2, |
230 | | sctp_clog.x.misc.log3, |
231 | | sctp_clog.x.misc.log4); |
232 | | #endif |
233 | 0 | } |
234 | | |
235 | | void |
236 | | sctp_log_fr(uint32_t biggest_tsn, uint32_t biggest_new_tsn, uint32_t tsn, int from) |
237 | 0 | { |
238 | | #if defined(SCTP_LOCAL_TRACE_BUF) |
239 | | struct sctp_cwnd_log sctp_clog; |
240 | | |
241 | | memset(&sctp_clog, 0, sizeof(sctp_clog)); |
242 | | sctp_clog.x.fr.largest_tsn = biggest_tsn; |
243 | | sctp_clog.x.fr.largest_new_tsn = biggest_new_tsn; |
244 | | sctp_clog.x.fr.tsn = tsn; |
245 | | SCTP_CTR6(KTR_SCTP, "SCTP:%d[%d]:%x-%x-%x-%x", |
246 | | SCTP_LOG_EVENT_FR, |
247 | | from, |
248 | | sctp_clog.x.misc.log1, |
249 | | sctp_clog.x.misc.log2, |
250 | | sctp_clog.x.misc.log3, |
251 | | sctp_clog.x.misc.log4); |
252 | | #endif |
253 | 0 | } |
254 | | |
255 | | #ifdef SCTP_MBUF_LOGGING |
256 | | void |
257 | | sctp_log_mb(struct mbuf *m, int from) |
258 | | { |
259 | | #if defined(SCTP_LOCAL_TRACE_BUF) |
260 | | struct sctp_cwnd_log sctp_clog; |
261 | | |
262 | | sctp_clog.x.mb.mp = m; |
263 | | sctp_clog.x.mb.mbuf_flags = (uint8_t)(SCTP_BUF_GET_FLAGS(m)); |
264 | | sctp_clog.x.mb.size = (uint16_t)(SCTP_BUF_LEN(m)); |
265 | | sctp_clog.x.mb.data = SCTP_BUF_AT(m, 0); |
266 | | if (SCTP_BUF_IS_EXTENDED(m)) { |
267 | | sctp_clog.x.mb.ext = SCTP_BUF_EXTEND_BASE(m); |
268 | | #if defined(__APPLE__) && !defined(__Userspace__) |
269 | | /* APPLE does not use a ref_cnt, but a forward/backward ref queue */ |
270 | | #else |
271 | | sctp_clog.x.mb.refcnt = (uint8_t)(SCTP_BUF_EXTEND_REFCNT(m)); |
272 | | #endif |
273 | | } else { |
274 | | sctp_clog.x.mb.ext = 0; |
275 | | sctp_clog.x.mb.refcnt = 0; |
276 | | } |
277 | | SCTP_CTR6(KTR_SCTP, "SCTP:%d[%d]:%x-%x-%x-%x", |
278 | | SCTP_LOG_EVENT_MBUF, |
279 | | from, |
280 | | sctp_clog.x.misc.log1, |
281 | | sctp_clog.x.misc.log2, |
282 | | sctp_clog.x.misc.log3, |
283 | | sctp_clog.x.misc.log4); |
284 | | #endif |
285 | | } |
286 | | |
287 | | void |
288 | | sctp_log_mbc(struct mbuf *m, int from) |
289 | | { |
290 | | struct mbuf *mat; |
291 | | |
292 | | for (mat = m; mat; mat = SCTP_BUF_NEXT(mat)) { |
293 | | sctp_log_mb(mat, from); |
294 | | } |
295 | | } |
296 | | #endif |
297 | | |
298 | | void |
299 | | sctp_log_strm_del(struct sctp_queued_to_read *control, struct sctp_queued_to_read *poschk, int from) |
300 | 0 | { |
301 | | #if defined(SCTP_LOCAL_TRACE_BUF) |
302 | | struct sctp_cwnd_log sctp_clog; |
303 | | |
304 | | if (control == NULL) { |
305 | | SCTP_PRINTF("Gak log of NULL?\n"); |
306 | | return; |
307 | | } |
308 | | sctp_clog.x.strlog.stcb = control->stcb; |
309 | | sctp_clog.x.strlog.n_tsn = control->sinfo_tsn; |
310 | | sctp_clog.x.strlog.n_sseq = (uint16_t)control->mid; |
311 | | sctp_clog.x.strlog.strm = control->sinfo_stream; |
312 | | if (poschk != NULL) { |
313 | | sctp_clog.x.strlog.e_tsn = poschk->sinfo_tsn; |
314 | | sctp_clog.x.strlog.e_sseq = (uint16_t)poschk->mid; |
315 | | } else { |
316 | | sctp_clog.x.strlog.e_tsn = 0; |
317 | | sctp_clog.x.strlog.e_sseq = 0; |
318 | | } |
319 | | SCTP_CTR6(KTR_SCTP, "SCTP:%d[%d]:%x-%x-%x-%x", |
320 | | SCTP_LOG_EVENT_STRM, |
321 | | from, |
322 | | sctp_clog.x.misc.log1, |
323 | | sctp_clog.x.misc.log2, |
324 | | sctp_clog.x.misc.log3, |
325 | | sctp_clog.x.misc.log4); |
326 | | #endif |
327 | 0 | } |
328 | | |
329 | | void |
330 | | sctp_log_cwnd(struct sctp_tcb *stcb, struct sctp_nets *net, int augment, uint8_t from) |
331 | 0 | { |
332 | | #if defined(SCTP_LOCAL_TRACE_BUF) |
333 | | struct sctp_cwnd_log sctp_clog; |
334 | | |
335 | | sctp_clog.x.cwnd.net = net; |
336 | | if (stcb->asoc.send_queue_cnt > 255) |
337 | | sctp_clog.x.cwnd.cnt_in_send = 255; |
338 | | else |
339 | | sctp_clog.x.cwnd.cnt_in_send = stcb->asoc.send_queue_cnt; |
340 | | if (stcb->asoc.stream_queue_cnt > 255) |
341 | | sctp_clog.x.cwnd.cnt_in_str = 255; |
342 | | else |
343 | | sctp_clog.x.cwnd.cnt_in_str = stcb->asoc.stream_queue_cnt; |
344 | | |
345 | | if (net) { |
346 | | sctp_clog.x.cwnd.cwnd_new_value = net->cwnd; |
347 | | sctp_clog.x.cwnd.inflight = net->flight_size; |
348 | | sctp_clog.x.cwnd.pseudo_cumack = net->pseudo_cumack; |
349 | | sctp_clog.x.cwnd.meets_pseudo_cumack = net->new_pseudo_cumack; |
350 | | sctp_clog.x.cwnd.need_new_pseudo_cumack = net->find_pseudo_cumack; |
351 | | } |
352 | | if (SCTP_CWNDLOG_PRESEND == from) { |
353 | | sctp_clog.x.cwnd.meets_pseudo_cumack = stcb->asoc.peers_rwnd; |
354 | | } |
355 | | sctp_clog.x.cwnd.cwnd_augment = augment; |
356 | | SCTP_CTR6(KTR_SCTP, "SCTP:%d[%d]:%x-%x-%x-%x", |
357 | | SCTP_LOG_EVENT_CWND, |
358 | | from, |
359 | | sctp_clog.x.misc.log1, |
360 | | sctp_clog.x.misc.log2, |
361 | | sctp_clog.x.misc.log3, |
362 | | sctp_clog.x.misc.log4); |
363 | | #endif |
364 | 0 | } |
365 | | |
366 | | #if !defined(__APPLE__) && !defined(__Userspace__) |
367 | | void |
368 | | sctp_log_lock(struct sctp_inpcb *inp, struct sctp_tcb *stcb, uint8_t from) |
369 | | { |
370 | | #if defined(SCTP_LOCAL_TRACE_BUF) |
371 | | struct sctp_cwnd_log sctp_clog; |
372 | | |
373 | | memset(&sctp_clog, 0, sizeof(sctp_clog)); |
374 | | if (inp) { |
375 | | sctp_clog.x.lock.sock = (void *) inp->sctp_socket; |
376 | | |
377 | | } else { |
378 | | sctp_clog.x.lock.sock = (void *) NULL; |
379 | | } |
380 | | sctp_clog.x.lock.inp = (void *) inp; |
381 | | #if defined(__FreeBSD__) |
382 | | if (stcb) { |
383 | | sctp_clog.x.lock.tcb_lock = mtx_owned(&stcb->tcb_mtx); |
384 | | } else { |
385 | | sctp_clog.x.lock.tcb_lock = SCTP_LOCK_UNKNOWN; |
386 | | } |
387 | | if (inp) { |
388 | | sctp_clog.x.lock.inp_lock = mtx_owned(&inp->inp_mtx); |
389 | | sctp_clog.x.lock.create_lock = mtx_owned(&inp->inp_create_mtx); |
390 | | } else { |
391 | | sctp_clog.x.lock.inp_lock = SCTP_LOCK_UNKNOWN; |
392 | | sctp_clog.x.lock.create_lock = SCTP_LOCK_UNKNOWN; |
393 | | } |
394 | | sctp_clog.x.lock.info_lock = rw_wowned(&SCTP_BASE_INFO(ipi_ep_mtx)); |
395 | | if (inp && (inp->sctp_socket)) { |
396 | | sctp_clog.x.lock.sock_lock = mtx_owned(SOCK_MTX(inp->sctp_socket)); |
397 | | sctp_clog.x.lock.sockrcvbuf_lock = mtx_owned(SOCKBUF_MTX(&inp->sctp_socket->so_rcv)); |
398 | | sctp_clog.x.lock.socksndbuf_lock = mtx_owned(SOCKBUF_MTX(&inp->sctp_socket->so_snd)); |
399 | | } else { |
400 | | sctp_clog.x.lock.sock_lock = SCTP_LOCK_UNKNOWN; |
401 | | sctp_clog.x.lock.sockrcvbuf_lock = SCTP_LOCK_UNKNOWN; |
402 | | sctp_clog.x.lock.socksndbuf_lock = SCTP_LOCK_UNKNOWN; |
403 | | } |
404 | | #endif |
405 | | SCTP_CTR6(KTR_SCTP, "SCTP:%d[%d]:%x-%x-%x-%x", |
406 | | SCTP_LOG_LOCK_EVENT, |
407 | | from, |
408 | | sctp_clog.x.misc.log1, |
409 | | sctp_clog.x.misc.log2, |
410 | | sctp_clog.x.misc.log3, |
411 | | sctp_clog.x.misc.log4); |
412 | | #endif |
413 | | } |
414 | | #endif |
415 | | |
416 | | void |
417 | | sctp_log_maxburst(struct sctp_tcb *stcb, struct sctp_nets *net, int error, int burst, uint8_t from) |
418 | 0 | { |
419 | | #if defined(SCTP_LOCAL_TRACE_BUF) |
420 | | struct sctp_cwnd_log sctp_clog; |
421 | | |
422 | | memset(&sctp_clog, 0, sizeof(sctp_clog)); |
423 | | sctp_clog.x.cwnd.net = net; |
424 | | sctp_clog.x.cwnd.cwnd_new_value = error; |
425 | | sctp_clog.x.cwnd.inflight = net->flight_size; |
426 | | sctp_clog.x.cwnd.cwnd_augment = burst; |
427 | | if (stcb->asoc.send_queue_cnt > 255) |
428 | | sctp_clog.x.cwnd.cnt_in_send = 255; |
429 | | else |
430 | | sctp_clog.x.cwnd.cnt_in_send = stcb->asoc.send_queue_cnt; |
431 | | if (stcb->asoc.stream_queue_cnt > 255) |
432 | | sctp_clog.x.cwnd.cnt_in_str = 255; |
433 | | else |
434 | | sctp_clog.x.cwnd.cnt_in_str = stcb->asoc.stream_queue_cnt; |
435 | | SCTP_CTR6(KTR_SCTP, "SCTP:%d[%d]:%x-%x-%x-%x", |
436 | | SCTP_LOG_EVENT_MAXBURST, |
437 | | from, |
438 | | sctp_clog.x.misc.log1, |
439 | | sctp_clog.x.misc.log2, |
440 | | sctp_clog.x.misc.log3, |
441 | | sctp_clog.x.misc.log4); |
442 | | #endif |
443 | 0 | } |
444 | | |
445 | | void |
446 | | sctp_log_rwnd(uint8_t from, uint32_t peers_rwnd, uint32_t snd_size, uint32_t overhead) |
447 | 0 | { |
448 | | #if defined(SCTP_LOCAL_TRACE_BUF) |
449 | | struct sctp_cwnd_log sctp_clog; |
450 | | |
451 | | sctp_clog.x.rwnd.rwnd = peers_rwnd; |
452 | | sctp_clog.x.rwnd.send_size = snd_size; |
453 | | sctp_clog.x.rwnd.overhead = overhead; |
454 | | sctp_clog.x.rwnd.new_rwnd = 0; |
455 | | SCTP_CTR6(KTR_SCTP, "SCTP:%d[%d]:%x-%x-%x-%x", |
456 | | SCTP_LOG_EVENT_RWND, |
457 | | from, |
458 | | sctp_clog.x.misc.log1, |
459 | | sctp_clog.x.misc.log2, |
460 | | sctp_clog.x.misc.log3, |
461 | | sctp_clog.x.misc.log4); |
462 | | #endif |
463 | 0 | } |
464 | | |
465 | | void |
466 | | sctp_log_rwnd_set(uint8_t from, uint32_t peers_rwnd, uint32_t flight_size, uint32_t overhead, uint32_t a_rwndval) |
467 | 0 | { |
468 | | #if defined(SCTP_LOCAL_TRACE_BUF) |
469 | | struct sctp_cwnd_log sctp_clog; |
470 | | |
471 | | sctp_clog.x.rwnd.rwnd = peers_rwnd; |
472 | | sctp_clog.x.rwnd.send_size = flight_size; |
473 | | sctp_clog.x.rwnd.overhead = overhead; |
474 | | sctp_clog.x.rwnd.new_rwnd = a_rwndval; |
475 | | SCTP_CTR6(KTR_SCTP, "SCTP:%d[%d]:%x-%x-%x-%x", |
476 | | SCTP_LOG_EVENT_RWND, |
477 | | from, |
478 | | sctp_clog.x.misc.log1, |
479 | | sctp_clog.x.misc.log2, |
480 | | sctp_clog.x.misc.log3, |
481 | | sctp_clog.x.misc.log4); |
482 | | #endif |
483 | 0 | } |
484 | | |
485 | | #ifdef SCTP_MBCNT_LOGGING |
486 | | static void |
487 | | sctp_log_mbcnt(uint8_t from, uint32_t total_oq, uint32_t book, uint32_t total_mbcnt_q, uint32_t mbcnt) |
488 | | { |
489 | | #if defined(SCTP_LOCAL_TRACE_BUF) |
490 | | struct sctp_cwnd_log sctp_clog; |
491 | | |
492 | | sctp_clog.x.mbcnt.total_queue_size = total_oq; |
493 | | sctp_clog.x.mbcnt.size_change = book; |
494 | | sctp_clog.x.mbcnt.total_queue_mb_size = total_mbcnt_q; |
495 | | sctp_clog.x.mbcnt.mbcnt_change = mbcnt; |
496 | | SCTP_CTR6(KTR_SCTP, "SCTP:%d[%d]:%x-%x-%x-%x", |
497 | | SCTP_LOG_EVENT_MBCNT, |
498 | | from, |
499 | | sctp_clog.x.misc.log1, |
500 | | sctp_clog.x.misc.log2, |
501 | | sctp_clog.x.misc.log3, |
502 | | sctp_clog.x.misc.log4); |
503 | | #endif |
504 | | } |
505 | | #endif |
506 | | |
507 | | void |
508 | | sctp_misc_ints(uint8_t from, uint32_t a, uint32_t b, uint32_t c, uint32_t d) |
509 | 0 | { |
510 | | #if defined(SCTP_LOCAL_TRACE_BUF) |
511 | | SCTP_CTR6(KTR_SCTP, "SCTP:%d[%d]:%x-%x-%x-%x", |
512 | | SCTP_LOG_MISC_EVENT, |
513 | | from, |
514 | | a, b, c, d); |
515 | | #endif |
516 | 0 | } |
517 | | |
518 | | void |
519 | | sctp_wakeup_log(struct sctp_tcb *stcb, uint32_t wake_cnt, int from) |
520 | 0 | { |
521 | | #if defined(SCTP_LOCAL_TRACE_BUF) |
522 | | struct sctp_cwnd_log sctp_clog; |
523 | | |
524 | | sctp_clog.x.wake.stcb = (void *)stcb; |
525 | | sctp_clog.x.wake.wake_cnt = wake_cnt; |
526 | | sctp_clog.x.wake.flight = stcb->asoc.total_flight_count; |
527 | | sctp_clog.x.wake.send_q = stcb->asoc.send_queue_cnt; |
528 | | sctp_clog.x.wake.sent_q = stcb->asoc.sent_queue_cnt; |
529 | | |
530 | | if (stcb->asoc.stream_queue_cnt < 0xff) |
531 | | sctp_clog.x.wake.stream_qcnt = (uint8_t) stcb->asoc.stream_queue_cnt; |
532 | | else |
533 | | sctp_clog.x.wake.stream_qcnt = 0xff; |
534 | | |
535 | | if (stcb->asoc.chunks_on_out_queue < 0xff) |
536 | | sctp_clog.x.wake.chunks_on_oque = (uint8_t) stcb->asoc.chunks_on_out_queue; |
537 | | else |
538 | | sctp_clog.x.wake.chunks_on_oque = 0xff; |
539 | | |
540 | | sctp_clog.x.wake.sctpflags = 0; |
541 | | /* set in the defered mode stuff */ |
542 | | if (stcb->sctp_ep->sctp_flags & SCTP_PCB_FLAGS_DONT_WAKE) |
543 | | sctp_clog.x.wake.sctpflags |= 1; |
544 | | if (stcb->sctp_ep->sctp_flags & SCTP_PCB_FLAGS_WAKEOUTPUT) |
545 | | sctp_clog.x.wake.sctpflags |= 2; |
546 | | if (stcb->sctp_ep->sctp_flags & SCTP_PCB_FLAGS_WAKEINPUT) |
547 | | sctp_clog.x.wake.sctpflags |= 4; |
548 | | /* what about the sb */ |
549 | | if (stcb->sctp_socket) { |
550 | | struct socket *so = stcb->sctp_socket; |
551 | | |
552 | | sctp_clog.x.wake.sbflags = (uint8_t)((so->so_snd.sb_flags & 0x00ff)); |
553 | | } else { |
554 | | sctp_clog.x.wake.sbflags = 0xff; |
555 | | } |
556 | | SCTP_CTR6(KTR_SCTP, "SCTP:%d[%d]:%x-%x-%x-%x", |
557 | | SCTP_LOG_EVENT_WAKE, |
558 | | from, |
559 | | sctp_clog.x.misc.log1, |
560 | | sctp_clog.x.misc.log2, |
561 | | sctp_clog.x.misc.log3, |
562 | | sctp_clog.x.misc.log4); |
563 | | #endif |
564 | 0 | } |
565 | | |
566 | | void |
567 | | sctp_log_block(uint8_t from, struct sctp_association *asoc, ssize_t sendlen) |
568 | 0 | { |
569 | | #if defined(SCTP_LOCAL_TRACE_BUF) |
570 | | struct sctp_cwnd_log sctp_clog; |
571 | | |
572 | | sctp_clog.x.blk.onsb = asoc->total_output_queue_size; |
573 | | sctp_clog.x.blk.send_sent_qcnt = (uint16_t) (asoc->send_queue_cnt + asoc->sent_queue_cnt); |
574 | | sctp_clog.x.blk.peer_rwnd = asoc->peers_rwnd; |
575 | | sctp_clog.x.blk.stream_qcnt = (uint16_t) asoc->stream_queue_cnt; |
576 | | sctp_clog.x.blk.chunks_on_oque = (uint16_t) asoc->chunks_on_out_queue; |
577 | | sctp_clog.x.blk.flight_size = (uint16_t) (asoc->total_flight/1024); |
578 | | sctp_clog.x.blk.sndlen = (uint32_t)sendlen; |
579 | | SCTP_CTR6(KTR_SCTP, "SCTP:%d[%d]:%x-%x-%x-%x", |
580 | | SCTP_LOG_EVENT_BLOCK, |
581 | | from, |
582 | | sctp_clog.x.misc.log1, |
583 | | sctp_clog.x.misc.log2, |
584 | | sctp_clog.x.misc.log3, |
585 | | sctp_clog.x.misc.log4); |
586 | | #endif |
587 | 0 | } |
588 | | |
589 | | int |
590 | | sctp_fill_stat_log(void *optval SCTP_UNUSED, size_t *optsize SCTP_UNUSED) |
591 | 0 | { |
592 | | /* May need to fix this if ktrdump does not work */ |
593 | 0 | return (0); |
594 | 0 | } |
595 | | |
596 | | #ifdef SCTP_AUDITING_ENABLED |
597 | | uint8_t sctp_audit_data[SCTP_AUDIT_SIZE][2]; |
598 | | static int sctp_audit_indx = 0; |
599 | | |
600 | | static |
601 | | void |
602 | | sctp_print_audit_report(void) |
603 | | { |
604 | | int i; |
605 | | int cnt; |
606 | | |
607 | | cnt = 0; |
608 | | for (i = sctp_audit_indx; i < SCTP_AUDIT_SIZE; i++) { |
609 | | if ((sctp_audit_data[i][0] == 0xe0) && |
610 | | (sctp_audit_data[i][1] == 0x01)) { |
611 | | cnt = 0; |
612 | | SCTP_PRINTF("\n"); |
613 | | } else if (sctp_audit_data[i][0] == 0xf0) { |
614 | | cnt = 0; |
615 | | SCTP_PRINTF("\n"); |
616 | | } else if ((sctp_audit_data[i][0] == 0xc0) && |
617 | | (sctp_audit_data[i][1] == 0x01)) { |
618 | | SCTP_PRINTF("\n"); |
619 | | cnt = 0; |
620 | | } |
621 | | SCTP_PRINTF("%2.2x%2.2x ", (uint32_t) sctp_audit_data[i][0], |
622 | | (uint32_t) sctp_audit_data[i][1]); |
623 | | cnt++; |
624 | | if ((cnt % 14) == 0) |
625 | | SCTP_PRINTF("\n"); |
626 | | } |
627 | | for (i = 0; i < sctp_audit_indx; i++) { |
628 | | if ((sctp_audit_data[i][0] == 0xe0) && |
629 | | (sctp_audit_data[i][1] == 0x01)) { |
630 | | cnt = 0; |
631 | | SCTP_PRINTF("\n"); |
632 | | } else if (sctp_audit_data[i][0] == 0xf0) { |
633 | | cnt = 0; |
634 | | SCTP_PRINTF("\n"); |
635 | | } else if ((sctp_audit_data[i][0] == 0xc0) && |
636 | | (sctp_audit_data[i][1] == 0x01)) { |
637 | | SCTP_PRINTF("\n"); |
638 | | cnt = 0; |
639 | | } |
640 | | SCTP_PRINTF("%2.2x%2.2x ", (uint32_t) sctp_audit_data[i][0], |
641 | | (uint32_t) sctp_audit_data[i][1]); |
642 | | cnt++; |
643 | | if ((cnt % 14) == 0) |
644 | | SCTP_PRINTF("\n"); |
645 | | } |
646 | | SCTP_PRINTF("\n"); |
647 | | } |
648 | | |
649 | | void |
650 | | sctp_auditing(int from, struct sctp_inpcb *inp, struct sctp_tcb *stcb, |
651 | | struct sctp_nets *net) |
652 | | { |
653 | | int resend_cnt, tot_out, rep, tot_book_cnt; |
654 | | struct sctp_nets *lnet; |
655 | | struct sctp_tmit_chunk *chk; |
656 | | |
657 | | sctp_audit_data[sctp_audit_indx][0] = 0xAA; |
658 | | sctp_audit_data[sctp_audit_indx][1] = 0x000000ff & from; |
659 | | sctp_audit_indx++; |
660 | | if (sctp_audit_indx >= SCTP_AUDIT_SIZE) { |
661 | | sctp_audit_indx = 0; |
662 | | } |
663 | | if (inp == NULL) { |
664 | | sctp_audit_data[sctp_audit_indx][0] = 0xAF; |
665 | | sctp_audit_data[sctp_audit_indx][1] = 0x01; |
666 | | sctp_audit_indx++; |
667 | | if (sctp_audit_indx >= SCTP_AUDIT_SIZE) { |
668 | | sctp_audit_indx = 0; |
669 | | } |
670 | | return; |
671 | | } |
672 | | if (stcb == NULL) { |
673 | | sctp_audit_data[sctp_audit_indx][0] = 0xAF; |
674 | | sctp_audit_data[sctp_audit_indx][1] = 0x02; |
675 | | sctp_audit_indx++; |
676 | | if (sctp_audit_indx >= SCTP_AUDIT_SIZE) { |
677 | | sctp_audit_indx = 0; |
678 | | } |
679 | | return; |
680 | | } |
681 | | sctp_audit_data[sctp_audit_indx][0] = 0xA1; |
682 | | sctp_audit_data[sctp_audit_indx][1] = |
683 | | (0x000000ff & stcb->asoc.sent_queue_retran_cnt); |
684 | | sctp_audit_indx++; |
685 | | if (sctp_audit_indx >= SCTP_AUDIT_SIZE) { |
686 | | sctp_audit_indx = 0; |
687 | | } |
688 | | rep = 0; |
689 | | tot_book_cnt = 0; |
690 | | resend_cnt = tot_out = 0; |
691 | | TAILQ_FOREACH(chk, &stcb->asoc.sent_queue, sctp_next) { |
692 | | if (chk->sent == SCTP_DATAGRAM_RESEND) { |
693 | | resend_cnt++; |
694 | | } else if (chk->sent < SCTP_DATAGRAM_RESEND) { |
695 | | tot_out += chk->book_size; |
696 | | tot_book_cnt++; |
697 | | } |
698 | | } |
699 | | if (resend_cnt != stcb->asoc.sent_queue_retran_cnt) { |
700 | | sctp_audit_data[sctp_audit_indx][0] = 0xAF; |
701 | | sctp_audit_data[sctp_audit_indx][1] = 0xA1; |
702 | | sctp_audit_indx++; |
703 | | if (sctp_audit_indx >= SCTP_AUDIT_SIZE) { |
704 | | sctp_audit_indx = 0; |
705 | | } |
706 | | SCTP_PRINTF("resend_cnt:%d asoc-tot:%d\n", |
707 | | resend_cnt, stcb->asoc.sent_queue_retran_cnt); |
708 | | rep = 1; |
709 | | stcb->asoc.sent_queue_retran_cnt = resend_cnt; |
710 | | sctp_audit_data[sctp_audit_indx][0] = 0xA2; |
711 | | sctp_audit_data[sctp_audit_indx][1] = |
712 | | (0x000000ff & stcb->asoc.sent_queue_retran_cnt); |
713 | | sctp_audit_indx++; |
714 | | if (sctp_audit_indx >= SCTP_AUDIT_SIZE) { |
715 | | sctp_audit_indx = 0; |
716 | | } |
717 | | } |
718 | | if (tot_out != stcb->asoc.total_flight) { |
719 | | sctp_audit_data[sctp_audit_indx][0] = 0xAF; |
720 | | sctp_audit_data[sctp_audit_indx][1] = 0xA2; |
721 | | sctp_audit_indx++; |
722 | | if (sctp_audit_indx >= SCTP_AUDIT_SIZE) { |
723 | | sctp_audit_indx = 0; |
724 | | } |
725 | | rep = 1; |
726 | | SCTP_PRINTF("tot_flt:%d asoc_tot:%d\n", tot_out, |
727 | | (int)stcb->asoc.total_flight); |
728 | | stcb->asoc.total_flight = tot_out; |
729 | | } |
730 | | if (tot_book_cnt != stcb->asoc.total_flight_count) { |
731 | | sctp_audit_data[sctp_audit_indx][0] = 0xAF; |
732 | | sctp_audit_data[sctp_audit_indx][1] = 0xA5; |
733 | | sctp_audit_indx++; |
734 | | if (sctp_audit_indx >= SCTP_AUDIT_SIZE) { |
735 | | sctp_audit_indx = 0; |
736 | | } |
737 | | rep = 1; |
738 | | SCTP_PRINTF("tot_flt_book:%d\n", tot_book_cnt); |
739 | | |
740 | | stcb->asoc.total_flight_count = tot_book_cnt; |
741 | | } |
742 | | tot_out = 0; |
743 | | TAILQ_FOREACH(lnet, &stcb->asoc.nets, sctp_next) { |
744 | | tot_out += lnet->flight_size; |
745 | | } |
746 | | if (tot_out != stcb->asoc.total_flight) { |
747 | | sctp_audit_data[sctp_audit_indx][0] = 0xAF; |
748 | | sctp_audit_data[sctp_audit_indx][1] = 0xA3; |
749 | | sctp_audit_indx++; |
750 | | if (sctp_audit_indx >= SCTP_AUDIT_SIZE) { |
751 | | sctp_audit_indx = 0; |
752 | | } |
753 | | rep = 1; |
754 | | SCTP_PRINTF("real flight:%d net total was %d\n", |
755 | | stcb->asoc.total_flight, tot_out); |
756 | | /* now corrective action */ |
757 | | TAILQ_FOREACH(lnet, &stcb->asoc.nets, sctp_next) { |
758 | | tot_out = 0; |
759 | | TAILQ_FOREACH(chk, &stcb->asoc.sent_queue, sctp_next) { |
760 | | if ((chk->whoTo == lnet) && |
761 | | (chk->sent < SCTP_DATAGRAM_RESEND)) { |
762 | | tot_out += chk->book_size; |
763 | | } |
764 | | } |
765 | | if (lnet->flight_size != tot_out) { |
766 | | SCTP_PRINTF("net:%p flight was %d corrected to %d\n", |
767 | | (void *)lnet, lnet->flight_size, |
768 | | tot_out); |
769 | | lnet->flight_size = tot_out; |
770 | | } |
771 | | } |
772 | | } |
773 | | if (rep) { |
774 | | sctp_print_audit_report(); |
775 | | } |
776 | | } |
777 | | |
778 | | void |
779 | | sctp_audit_log(uint8_t ev, uint8_t fd) |
780 | | { |
781 | | |
782 | | sctp_audit_data[sctp_audit_indx][0] = ev; |
783 | | sctp_audit_data[sctp_audit_indx][1] = fd; |
784 | | sctp_audit_indx++; |
785 | | if (sctp_audit_indx >= SCTP_AUDIT_SIZE) { |
786 | | sctp_audit_indx = 0; |
787 | | } |
788 | | } |
789 | | |
790 | | #endif |
791 | | |
792 | | /* |
793 | | * The conversion from time to ticks and vice versa is done by rounding |
794 | | * upwards. This way we can test in the code the time to be positive and |
795 | | * know that this corresponds to a positive number of ticks. |
796 | | */ |
797 | | |
798 | | uint32_t |
799 | | sctp_msecs_to_ticks(uint32_t msecs) |
800 | 144k | { |
801 | 144k | uint64_t temp; |
802 | 144k | uint32_t ticks; |
803 | | |
804 | 144k | if (hz == 1000) { |
805 | 144k | ticks = msecs; |
806 | 144k | } else { |
807 | 2 | temp = (((uint64_t)msecs * hz) + 999) / 1000; |
808 | 2 | if (temp > UINT32_MAX) { |
809 | 0 | ticks = UINT32_MAX; |
810 | 2 | } else { |
811 | 2 | ticks = (uint32_t)temp; |
812 | 2 | } |
813 | 2 | } |
814 | 144k | return (ticks); |
815 | 144k | } |
816 | | |
817 | | uint32_t |
818 | | sctp_ticks_to_msecs(uint32_t ticks) |
819 | 21.2k | { |
820 | 21.2k | uint64_t temp; |
821 | 21.2k | uint32_t msecs; |
822 | | |
823 | 21.2k | if (hz == 1000) { |
824 | 21.2k | msecs = ticks; |
825 | 21.2k | } else { |
826 | 0 | temp = (((uint64_t)ticks * 1000) + (hz - 1)) / hz; |
827 | 0 | if (temp > UINT32_MAX) { |
828 | 0 | msecs = UINT32_MAX; |
829 | 0 | } else { |
830 | 0 | msecs = (uint32_t)temp; |
831 | 0 | } |
832 | 0 | } |
833 | 21.2k | return (msecs); |
834 | 21.2k | } |
835 | | |
836 | | uint32_t |
837 | | sctp_secs_to_ticks(uint32_t secs) |
838 | 53.1k | { |
839 | 53.1k | uint64_t temp; |
840 | 53.1k | uint32_t ticks; |
841 | | |
842 | 53.1k | temp = (uint64_t)secs * hz; |
843 | 53.1k | if (temp > UINT32_MAX) { |
844 | 0 | ticks = UINT32_MAX; |
845 | 53.1k | } else { |
846 | 53.1k | ticks = (uint32_t)temp; |
847 | 53.1k | } |
848 | 53.1k | return (ticks); |
849 | 53.1k | } |
850 | | |
851 | | uint32_t |
852 | | sctp_ticks_to_secs(uint32_t ticks) |
853 | 0 | { |
854 | 0 | uint64_t temp; |
855 | 0 | uint32_t secs; |
856 | |
|
857 | 0 | temp = ((uint64_t)ticks + (hz - 1)) / hz; |
858 | 0 | if (temp > UINT32_MAX) { |
859 | 0 | secs = UINT32_MAX; |
860 | 0 | } else { |
861 | 0 | secs = (uint32_t)temp; |
862 | 0 | } |
863 | 0 | return (secs); |
864 | 0 | } |
865 | | |
866 | | /* |
867 | | * sctp_stop_timers_for_shutdown() should be called |
868 | | * when entering the SHUTDOWN_SENT or SHUTDOWN_ACK_SENT |
869 | | * state to make sure that all timers are stopped. |
870 | | */ |
871 | | void |
872 | | sctp_stop_timers_for_shutdown(struct sctp_tcb *stcb) |
873 | 39 | { |
874 | 39 | struct sctp_inpcb *inp; |
875 | 39 | struct sctp_nets *net; |
876 | | |
877 | 39 | inp = stcb->sctp_ep; |
878 | | |
879 | 39 | sctp_timer_stop(SCTP_TIMER_TYPE_RECV, inp, stcb, NULL, |
880 | 39 | SCTP_FROM_SCTPUTIL + SCTP_LOC_12); |
881 | 39 | sctp_timer_stop(SCTP_TIMER_TYPE_STRRESET, inp, stcb, NULL, |
882 | 39 | SCTP_FROM_SCTPUTIL + SCTP_LOC_13); |
883 | 39 | sctp_timer_stop(SCTP_TIMER_TYPE_ASCONF, inp, stcb, NULL, |
884 | 39 | SCTP_FROM_SCTPUTIL + SCTP_LOC_14); |
885 | 39 | sctp_timer_stop(SCTP_TIMER_TYPE_AUTOCLOSE, inp, stcb, NULL, |
886 | 39 | SCTP_FROM_SCTPUTIL + SCTP_LOC_15); |
887 | 112 | TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) { |
888 | 112 | sctp_timer_stop(SCTP_TIMER_TYPE_PATHMTURAISE, inp, stcb, net, |
889 | 112 | SCTP_FROM_SCTPUTIL + SCTP_LOC_16); |
890 | 112 | sctp_timer_stop(SCTP_TIMER_TYPE_HEARTBEAT, inp, stcb, net, |
891 | 112 | SCTP_FROM_SCTPUTIL + SCTP_LOC_17); |
892 | 112 | } |
893 | 39 | } |
894 | | |
895 | | void |
896 | | sctp_stop_association_timers(struct sctp_tcb *stcb, bool stop_assoc_kill_timer) |
897 | 21.2k | { |
898 | 21.2k | struct sctp_inpcb *inp; |
899 | 21.2k | struct sctp_nets *net; |
900 | | |
901 | 21.2k | inp = stcb->sctp_ep; |
902 | 21.2k | sctp_timer_stop(SCTP_TIMER_TYPE_RECV, inp, stcb, NULL, |
903 | 21.2k | SCTP_FROM_SCTPUTIL + SCTP_LOC_18); |
904 | 21.2k | sctp_timer_stop(SCTP_TIMER_TYPE_STRRESET, inp, stcb, NULL, |
905 | 21.2k | SCTP_FROM_SCTPUTIL + SCTP_LOC_19); |
906 | 21.2k | if (stop_assoc_kill_timer) { |
907 | 10.6k | sctp_timer_stop(SCTP_TIMER_TYPE_ASOCKILL, inp, stcb, NULL, |
908 | 10.6k | SCTP_FROM_SCTPUTIL + SCTP_LOC_20); |
909 | 10.6k | } |
910 | 21.2k | sctp_timer_stop(SCTP_TIMER_TYPE_ASCONF, inp, stcb, NULL, |
911 | 21.2k | SCTP_FROM_SCTPUTIL + SCTP_LOC_21); |
912 | 21.2k | sctp_timer_stop(SCTP_TIMER_TYPE_AUTOCLOSE, inp, stcb, NULL, |
913 | 21.2k | SCTP_FROM_SCTPUTIL + SCTP_LOC_22); |
914 | 21.2k | sctp_timer_stop(SCTP_TIMER_TYPE_SHUTDOWNGUARD, inp, stcb, NULL, |
915 | 21.2k | SCTP_FROM_SCTPUTIL + SCTP_LOC_23); |
916 | | /* Mobility adaptation */ |
917 | 21.2k | sctp_timer_stop(SCTP_TIMER_TYPE_PRIM_DELETED, inp, stcb, NULL, |
918 | 21.2k | SCTP_FROM_SCTPUTIL + SCTP_LOC_24); |
919 | 30.5k | TAILQ_FOREACH(net, &stcb->asoc.nets, sctp_next) { |
920 | 30.5k | sctp_timer_stop(SCTP_TIMER_TYPE_SEND, inp, stcb, net, |
921 | 30.5k | SCTP_FROM_SCTPUTIL + SCTP_LOC_25); |
922 | 30.5k | sctp_timer_stop(SCTP_TIMER_TYPE_INIT, inp, stcb, net, |
923 | 30.5k | SCTP_FROM_SCTPUTIL + SCTP_LOC_26); |
924 | 30.5k | sctp_timer_stop(SCTP_TIMER_TYPE_SHUTDOWN, inp, stcb, net, |
925 | 30.5k | SCTP_FROM_SCTPUTIL + SCTP_LOC_27); |
926 | 30.5k | sctp_timer_stop(SCTP_TIMER_TYPE_COOKIE, inp, stcb, net, |
927 | 30.5k | SCTP_FROM_SCTPUTIL + SCTP_LOC_28); |
928 | 30.5k | sctp_timer_stop(SCTP_TIMER_TYPE_SHUTDOWNACK, inp, stcb, net, |
929 | 30.5k | SCTP_FROM_SCTPUTIL + SCTP_LOC_29); |
930 | 30.5k | sctp_timer_stop(SCTP_TIMER_TYPE_PATHMTURAISE, inp, stcb, net, |
931 | 30.5k | SCTP_FROM_SCTPUTIL + SCTP_LOC_30); |
932 | 30.5k | sctp_timer_stop(SCTP_TIMER_TYPE_HEARTBEAT, inp, stcb, net, |
933 | 30.5k | SCTP_FROM_SCTPUTIL + SCTP_LOC_31); |
934 | 30.5k | } |
935 | 21.2k | } |
936 | | |
937 | | /* |
938 | | * A list of sizes based on typical mtu's, used only if next hop size not |
939 | | * returned. These values MUST be multiples of 4 and MUST be ordered. |
940 | | */ |
941 | | static uint32_t sctp_mtu_sizes[] = { |
942 | | 68, |
943 | | 296, |
944 | | 508, |
945 | | 512, |
946 | | 544, |
947 | | 576, |
948 | | 1004, |
949 | | 1492, |
950 | | 1500, |
951 | | 1536, |
952 | | 2000, |
953 | | 2048, |
954 | | 4352, |
955 | | 4464, |
956 | | 8168, |
957 | | 17912, |
958 | | 32000, |
959 | | 65532 |
960 | | }; |
961 | | |
962 | | /* |
963 | | * Return the largest MTU in sctp_mtu_sizes smaller than val. |
964 | | * If val is smaller than the minimum, just return the largest |
965 | | * multiple of 4 smaller or equal to val. |
966 | | * Ensure that the result is a multiple of 4. |
967 | | */ |
968 | | uint32_t |
969 | | sctp_get_prev_mtu(uint32_t val) |
970 | 0 | { |
971 | 0 | uint32_t i; |
972 | |
|
973 | 0 | val &= 0xfffffffc; |
974 | 0 | if (val <= sctp_mtu_sizes[0]) { |
975 | 0 | return (val); |
976 | 0 | } |
977 | 0 | for (i = 1; i < (sizeof(sctp_mtu_sizes) / sizeof(uint32_t)); i++) { |
978 | 0 | if (val <= sctp_mtu_sizes[i]) { |
979 | 0 | break; |
980 | 0 | } |
981 | 0 | } |
982 | 0 | KASSERT((sctp_mtu_sizes[i - 1] & 0x00000003) == 0, |
983 | 0 | ("sctp_mtu_sizes[%u] not a multiple of 4", i - 1)); |
984 | 0 | return (sctp_mtu_sizes[i - 1]); |
985 | 0 | } |
986 | | |
987 | | /* |
988 | | * Return the smallest MTU in sctp_mtu_sizes larger than val. |
989 | | * If val is larger than the maximum, just return the largest multiple of 4 smaller |
990 | | * or equal to val. |
991 | | * Ensure that the result is a multiple of 4. |
992 | | */ |
993 | | uint32_t |
994 | | sctp_get_next_mtu(uint32_t val) |
995 | 0 | { |
996 | | /* select another MTU that is just bigger than this one */ |
997 | 0 | uint32_t i; |
998 | |
|
999 | 0 | val &= 0xfffffffc; |
1000 | 0 | for (i = 0; i < (sizeof(sctp_mtu_sizes) / sizeof(uint32_t)); i++) { |
1001 | 0 | if (val < sctp_mtu_sizes[i]) { |
1002 | 0 | KASSERT((sctp_mtu_sizes[i] & 0x00000003) == 0, |
1003 | 0 | ("sctp_mtu_sizes[%u] not a multiple of 4", i)); |
1004 | 0 | return (sctp_mtu_sizes[i]); |
1005 | 0 | } |
1006 | 0 | } |
1007 | 0 | return (val); |
1008 | 0 | } |
1009 | | |
1010 | | void |
1011 | | sctp_fill_random_store(struct sctp_pcb *m) |
1012 | 37.6k | { |
1013 | | /* |
1014 | | * Here we use the MD5/SHA-1 to hash with our good randomNumbers and |
1015 | | * our counter. The result becomes our good random numbers and we |
1016 | | * then setup to give these out. Note that we do no locking to |
1017 | | * protect this. This is ok, since if competing folks call this we |
1018 | | * will get more gobbled gook in the random store which is what we |
1019 | | * want. There is a danger that two guys will use the same random |
1020 | | * numbers, but thats ok too since that is random as well :-> |
1021 | | */ |
1022 | 37.6k | m->store_at = 0; |
1023 | 37.6k | #if defined(__Userspace__) && defined(FUZZING_BUILD_MODE_UNSAFE_FOR_PRODUCTION) |
1024 | 790k | for (int i = 0; i < (int) (sizeof(m->random_store) / sizeof(m->random_store[0])); i++) { |
1025 | 752k | m->random_store[i] = (uint8_t) rand(); |
1026 | 752k | } |
1027 | | #else |
1028 | | (void)sctp_hmac(SCTP_HMAC, (uint8_t *)m->random_numbers, |
1029 | | sizeof(m->random_numbers), (uint8_t *)&m->random_counter, |
1030 | | sizeof(m->random_counter), (uint8_t *)m->random_store); |
1031 | | #endif |
1032 | 37.6k | m->random_counter++; |
1033 | 37.6k | } |
1034 | | |
1035 | | uint32_t |
1036 | | sctp_select_initial_TSN(struct sctp_pcb *inp) |
1037 | 166k | { |
1038 | | /* |
1039 | | * A true implementation should use random selection process to get |
1040 | | * the initial stream sequence number, using RFC1750 as a good |
1041 | | * guideline |
1042 | | */ |
1043 | 166k | uint32_t x, *xp; |
1044 | 166k | uint8_t *p; |
1045 | 166k | int store_at, new_store; |
1046 | | |
1047 | 166k | if (inp->initial_sequence_debug != 0) { |
1048 | 0 | uint32_t ret; |
1049 | |
|
1050 | 0 | ret = inp->initial_sequence_debug; |
1051 | 0 | inp->initial_sequence_debug++; |
1052 | 0 | return (ret); |
1053 | 0 | } |
1054 | 166k | retry: |
1055 | 166k | store_at = inp->store_at; |
1056 | 166k | new_store = store_at + sizeof(uint32_t); |
1057 | 166k | if (new_store >= (SCTP_SIGNATURE_SIZE-3)) { |
1058 | 26.9k | new_store = 0; |
1059 | 26.9k | } |
1060 | 166k | if (!atomic_cmpset_int(&inp->store_at, store_at, new_store)) { |
1061 | 0 | goto retry; |
1062 | 0 | } |
1063 | 166k | if (new_store == 0) { |
1064 | | /* Refill the random store */ |
1065 | 26.9k | sctp_fill_random_store(inp); |
1066 | 26.9k | } |
1067 | 166k | p = &inp->random_store[store_at]; |
1068 | 166k | xp = (uint32_t *)p; |
1069 | 166k | x = *xp; |
1070 | 166k | return (x); |
1071 | 166k | } |
1072 | | |
1073 | | uint32_t |
1074 | | sctp_select_a_tag(struct sctp_inpcb *inp, uint16_t lport, uint16_t rport, int check) |
1075 | 51.6k | { |
1076 | 51.6k | uint32_t x; |
1077 | 51.6k | struct timeval now; |
1078 | | |
1079 | 51.6k | if (check) { |
1080 | 30.4k | (void)SCTP_GETTIME_TIMEVAL(&now); |
1081 | 30.4k | } |
1082 | 51.6k | for (;;) { |
1083 | 51.6k | x = sctp_select_initial_TSN(&inp->sctp_ep); |
1084 | 51.6k | if (x == 0) { |
1085 | | /* we never use 0 */ |
1086 | 0 | continue; |
1087 | 0 | } |
1088 | 51.6k | if (!check || sctp_is_vtag_good(x, lport, rport, &now)) { |
1089 | 51.6k | break; |
1090 | 51.6k | } |
1091 | 51.6k | } |
1092 | 51.6k | return (x); |
1093 | 51.6k | } |
1094 | | |
1095 | | int32_t |
1096 | | sctp_map_assoc_state(int kernel_state) |
1097 | 0 | { |
1098 | 0 | int32_t user_state; |
1099 | |
|
1100 | 0 | if (kernel_state & SCTP_STATE_WAS_ABORTED) { |
1101 | 0 | user_state = SCTP_CLOSED; |
1102 | 0 | } else if (kernel_state & SCTP_STATE_SHUTDOWN_PENDING) { |
1103 | 0 | user_state = SCTP_SHUTDOWN_PENDING; |
1104 | 0 | } else { |
1105 | 0 | switch (kernel_state & SCTP_STATE_MASK) { |
1106 | 0 | case SCTP_STATE_EMPTY: |
1107 | 0 | user_state = SCTP_CLOSED; |
1108 | 0 | break; |
1109 | 0 | case SCTP_STATE_INUSE: |
1110 | 0 | user_state = SCTP_CLOSED; |
1111 | 0 | break; |
1112 | 0 | case SCTP_STATE_COOKIE_WAIT: |
1113 | 0 | user_state = SCTP_COOKIE_WAIT; |
1114 | 0 | break; |
1115 | 0 | case SCTP_STATE_COOKIE_ECHOED: |
1116 | 0 | user_state = SCTP_COOKIE_ECHOED; |
1117 | 0 | break; |
1118 | 0 | case SCTP_STATE_OPEN: |
1119 | 0 | user_state = SCTP_ESTABLISHED; |
1120 | 0 | break; |
1121 | 0 | case SCTP_STATE_SHUTDOWN_SENT: |
1122 | 0 | user_state = SCTP_SHUTDOWN_SENT; |
1123 | 0 | break; |
1124 | 0 | case SCTP_STATE_SHUTDOWN_RECEIVED: |
1125 | 0 | user_state = SCTP_SHUTDOWN_RECEIVED; |
1126 | 0 | break; |
1127 | 0 | case SCTP_STATE_SHUTDOWN_ACK_SENT: |
1128 | 0 | user_state = SCTP_SHUTDOWN_ACK_SENT; |
1129 | 0 | break; |
1130 | 0 | default: |
1131 | 0 | user_state = SCTP_CLOSED; |
1132 | 0 | break; |
1133 | 0 | } |
1134 | 0 | } |
1135 | 0 | return (user_state); |
1136 | 0 | } |
1137 | | |
1138 | | int |
1139 | | sctp_init_asoc(struct sctp_inpcb *inp, struct sctp_tcb *stcb, |
1140 | | uint32_t override_tag, uint32_t initial_tsn, uint32_t vrf_id, |
1141 | | uint16_t o_strms) |
1142 | 10.6k | { |
1143 | 10.6k | struct sctp_association *asoc; |
1144 | | /* |
1145 | | * Anything set to zero is taken care of by the allocation routine's |
1146 | | * bzero |
1147 | | */ |
1148 | | |
1149 | | /* |
1150 | | * Up front select what scoping to apply on addresses I tell my peer |
1151 | | * Not sure what to do with these right now, we will need to come up |
1152 | | * with a way to set them. We may need to pass them through from the |
1153 | | * caller in the sctp_aloc_assoc() function. |
1154 | | */ |
1155 | 10.6k | int i; |
1156 | | #if defined(SCTP_DETAILED_STR_STATS) |
1157 | | int j; |
1158 | | #endif |
1159 | | |
1160 | 10.6k | asoc = &stcb->asoc; |
1161 | | /* init all variables to a known value. */ |
1162 | 10.6k | SCTP_SET_STATE(stcb, SCTP_STATE_INUSE); |
1163 | 10.6k | asoc->max_burst = inp->sctp_ep.max_burst; |
1164 | 10.6k | asoc->fr_max_burst = inp->sctp_ep.fr_max_burst; |
1165 | 10.6k | asoc->heart_beat_delay = sctp_ticks_to_msecs(inp->sctp_ep.sctp_timeoutticks[SCTP_TIMER_HEARTBEAT]); |
1166 | 10.6k | asoc->cookie_life = inp->sctp_ep.def_cookie_life; |
1167 | 10.6k | asoc->sctp_cmt_on_off = inp->sctp_cmt_on_off; |
1168 | 10.6k | asoc->ecn_supported = inp->ecn_supported; |
1169 | 10.6k | asoc->prsctp_supported = inp->prsctp_supported; |
1170 | 10.6k | asoc->auth_supported = inp->auth_supported; |
1171 | 10.6k | asoc->asconf_supported = inp->asconf_supported; |
1172 | 10.6k | asoc->reconfig_supported = inp->reconfig_supported; |
1173 | 10.6k | asoc->nrsack_supported = inp->nrsack_supported; |
1174 | 10.6k | asoc->pktdrop_supported = inp->pktdrop_supported; |
1175 | 10.6k | asoc->idata_supported = inp->idata_supported; |
1176 | 10.6k | asoc->rcv_edmid = inp->rcv_edmid; |
1177 | 10.6k | asoc->snd_edmid = SCTP_EDMID_NONE; |
1178 | 10.6k | asoc->sctp_cmt_pf = (uint8_t)0; |
1179 | 10.6k | asoc->sctp_frag_point = inp->sctp_frag_point; |
1180 | 10.6k | asoc->sctp_features = inp->sctp_features; |
1181 | 10.6k | asoc->default_dscp = inp->sctp_ep.default_dscp; |
1182 | 10.6k | asoc->max_cwnd = inp->max_cwnd; |
1183 | 10.6k | #ifdef INET6 |
1184 | 10.6k | if (inp->sctp_ep.default_flowlabel) { |
1185 | 0 | asoc->default_flowlabel = inp->sctp_ep.default_flowlabel; |
1186 | 10.6k | } else { |
1187 | 10.6k | if (inp->ip_inp.inp.inp_flags & IN6P_AUTOFLOWLABEL) { |
1188 | 0 | asoc->default_flowlabel = sctp_select_initial_TSN(&inp->sctp_ep); |
1189 | 0 | asoc->default_flowlabel &= 0x000fffff; |
1190 | 0 | asoc->default_flowlabel |= 0x80000000; |
1191 | 10.6k | } else { |
1192 | 10.6k | asoc->default_flowlabel = 0; |
1193 | 10.6k | } |
1194 | 10.6k | } |
1195 | 10.6k | #endif |
1196 | 10.6k | asoc->sb_send_resv = 0; |
1197 | 10.6k | if (override_tag) { |
1198 | 0 | asoc->my_vtag = override_tag; |
1199 | 10.6k | } else { |
1200 | 10.6k | asoc->my_vtag = sctp_select_a_tag(inp, stcb->sctp_ep->sctp_lport, stcb->rport, 1); |
1201 | 10.6k | } |
1202 | | /* Get the nonce tags */ |
1203 | 10.6k | asoc->my_vtag_nonce = sctp_select_a_tag(inp, stcb->sctp_ep->sctp_lport, stcb->rport, 0); |
1204 | 10.6k | asoc->peer_vtag_nonce = sctp_select_a_tag(inp, stcb->sctp_ep->sctp_lport, stcb->rport, 0); |
1205 | 10.6k | asoc->vrf_id = vrf_id; |
1206 | | |
1207 | | #ifdef SCTP_ASOCLOG_OF_TSNS |
1208 | | asoc->tsn_in_at = 0; |
1209 | | asoc->tsn_out_at = 0; |
1210 | | asoc->tsn_in_wrapped = 0; |
1211 | | asoc->tsn_out_wrapped = 0; |
1212 | | asoc->cumack_log_at = 0; |
1213 | | asoc->cumack_log_atsnt = 0; |
1214 | | #endif |
1215 | | #ifdef SCTP_FS_SPEC_LOG |
1216 | | asoc->fs_index = 0; |
1217 | | #endif |
1218 | 10.6k | asoc->refcnt = 0; |
1219 | 10.6k | asoc->assoc_up_sent = 0; |
1220 | 10.6k | if (override_tag) { |
1221 | 0 | asoc->init_seq_number = initial_tsn; |
1222 | 10.6k | } else { |
1223 | 10.6k | asoc->init_seq_number = sctp_select_initial_TSN(&inp->sctp_ep); |
1224 | 10.6k | } |
1225 | 10.6k | asoc->asconf_seq_out = asoc->init_seq_number; |
1226 | 10.6k | asoc->str_reset_seq_out = asoc->init_seq_number; |
1227 | 10.6k | asoc->sending_seq = asoc->init_seq_number; |
1228 | 10.6k | asoc->asconf_seq_out_acked = asoc->init_seq_number - 1; |
1229 | | /* we are optimistic here */ |
1230 | 10.6k | asoc->peer_supports_nat = 0; |
1231 | 10.6k | asoc->sent_queue_retran_cnt = 0; |
1232 | | |
1233 | | /* for CMT */ |
1234 | 10.6k | asoc->last_net_cmt_send_started = NULL; |
1235 | | |
1236 | 10.6k | asoc->last_acked_seq = asoc->init_seq_number - 1; |
1237 | 10.6k | asoc->advanced_peer_ack_point = asoc->init_seq_number - 1; |
1238 | 10.6k | asoc->asconf_seq_in = asoc->init_seq_number - 1; |
1239 | | |
1240 | | /* here we are different, we hold the next one we expect */ |
1241 | 10.6k | asoc->str_reset_seq_in = asoc->init_seq_number; |
1242 | | |
1243 | 10.6k | asoc->initial_init_rto_max = inp->sctp_ep.initial_init_rto_max; |
1244 | 10.6k | asoc->initial_rto = inp->sctp_ep.initial_rto; |
1245 | | |
1246 | 10.6k | asoc->default_mtu = inp->sctp_ep.default_mtu; |
1247 | 10.6k | asoc->max_init_times = inp->sctp_ep.max_init_times; |
1248 | 10.6k | asoc->max_send_times = inp->sctp_ep.max_send_times; |
1249 | 10.6k | asoc->def_net_failure = inp->sctp_ep.def_net_failure; |
1250 | 10.6k | asoc->def_net_pf_threshold = inp->sctp_ep.def_net_pf_threshold; |
1251 | 10.6k | asoc->free_chunk_cnt = 0; |
1252 | | |
1253 | 10.6k | asoc->iam_blocking = 0; |
1254 | 10.6k | asoc->context = inp->sctp_context; |
1255 | 10.6k | asoc->local_strreset_support = inp->local_strreset_support; |
1256 | 10.6k | asoc->def_send = inp->def_send; |
1257 | 10.6k | asoc->delayed_ack = sctp_ticks_to_msecs(inp->sctp_ep.sctp_timeoutticks[SCTP_TIMER_RECV]); |
1258 | 10.6k | asoc->sack_freq = inp->sctp_ep.sctp_sack_freq; |
1259 | 10.6k | asoc->pr_sctp_cnt = 0; |
1260 | 10.6k | asoc->total_output_queue_size = 0; |
1261 | | |
1262 | 10.6k | if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) { |
1263 | 0 | asoc->scope.ipv6_addr_legal = 1; |
1264 | 0 | if (SCTP_IPV6_V6ONLY(inp) == 0) { |
1265 | 0 | asoc->scope.ipv4_addr_legal = 1; |
1266 | 0 | } else { |
1267 | 0 | asoc->scope.ipv4_addr_legal = 0; |
1268 | 0 | } |
1269 | 0 | #if defined(__Userspace__) |
1270 | 0 | asoc->scope.conn_addr_legal = 0; |
1271 | 0 | #endif |
1272 | 10.6k | } else { |
1273 | 10.6k | asoc->scope.ipv6_addr_legal = 0; |
1274 | 10.6k | #if defined(__Userspace__) |
1275 | 10.6k | if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_CONN) { |
1276 | 10.6k | asoc->scope.conn_addr_legal = 1; |
1277 | 10.6k | asoc->scope.ipv4_addr_legal = 0; |
1278 | 10.6k | } else { |
1279 | 0 | asoc->scope.conn_addr_legal = 0; |
1280 | 0 | asoc->scope.ipv4_addr_legal = 1; |
1281 | 0 | } |
1282 | | #else |
1283 | | asoc->scope.ipv4_addr_legal = 1; |
1284 | | #endif |
1285 | 10.6k | } |
1286 | | |
1287 | 10.6k | asoc->my_rwnd = max(SCTP_SB_LIMIT_RCV(inp->sctp_socket), SCTP_MINIMAL_RWND); |
1288 | 10.6k | asoc->peers_rwnd = SCTP_SB_LIMIT_RCV(inp->sctp_socket); |
1289 | | |
1290 | 10.6k | asoc->smallest_mtu = 0; |
1291 | 10.6k | asoc->minrto = inp->sctp_ep.sctp_minrto; |
1292 | 10.6k | asoc->maxrto = inp->sctp_ep.sctp_maxrto; |
1293 | | |
1294 | 10.6k | asoc->stream_locked_on = 0; |
1295 | 10.6k | asoc->ecn_echo_cnt_onq = 0; |
1296 | 10.6k | asoc->stream_locked = 0; |
1297 | | |
1298 | 10.6k | asoc->send_sack = 1; |
1299 | | |
1300 | 10.6k | LIST_INIT(&asoc->sctp_restricted_addrs); |
1301 | | |
1302 | 10.6k | TAILQ_INIT(&asoc->nets); |
1303 | 10.6k | TAILQ_INIT(&asoc->pending_reply_queue); |
1304 | 10.6k | TAILQ_INIT(&asoc->asconf_ack_sent); |
1305 | | /* Setup to fill the hb random cache at first HB */ |
1306 | 10.6k | asoc->hb_random_idx = 4; |
1307 | | |
1308 | 10.6k | asoc->sctp_autoclose_ticks = inp->sctp_ep.auto_close_time; |
1309 | | |
1310 | 10.6k | stcb->asoc.congestion_control_module = inp->sctp_ep.sctp_default_cc_module; |
1311 | 10.6k | stcb->asoc.cc_functions = sctp_cc_functions[inp->sctp_ep.sctp_default_cc_module]; |
1312 | | |
1313 | 10.6k | stcb->asoc.stream_scheduling_module = inp->sctp_ep.sctp_default_ss_module; |
1314 | 10.6k | stcb->asoc.ss_functions = sctp_ss_functions[inp->sctp_ep.sctp_default_ss_module]; |
1315 | | |
1316 | | /* |
1317 | | * Now the stream parameters, here we allocate space for all streams |
1318 | | * that we request by default. |
1319 | | */ |
1320 | 10.6k | asoc->strm_realoutsize = asoc->streamoutcnt = asoc->pre_open_streams = |
1321 | 10.6k | o_strms; |
1322 | 10.6k | SCTP_MALLOC(asoc->strmout, struct sctp_stream_out *, |
1323 | 10.6k | asoc->streamoutcnt * sizeof(struct sctp_stream_out), |
1324 | 10.6k | SCTP_M_STRMO); |
1325 | 10.6k | if (asoc->strmout == NULL) { |
1326 | | /* big trouble no memory */ |
1327 | 0 | SCTP_LTRACE_ERR_RET(NULL, stcb, NULL, SCTP_FROM_SCTPUTIL, ENOMEM); |
1328 | 0 | return (ENOMEM); |
1329 | 0 | } |
1330 | 10.6k | SCTP_TCB_LOCK(stcb); |
1331 | 2.74M | for (i = 0; i < asoc->streamoutcnt; i++) { |
1332 | | /* |
1333 | | * inbound side must be set to 0xffff, also NOTE when we get |
1334 | | * the INIT-ACK back (for INIT sender) we MUST reduce the |
1335 | | * count (streamoutcnt) but first check if we sent to any of |
1336 | | * the upper streams that were dropped (if some were). Those |
1337 | | * that were dropped must be notified to the upper layer as |
1338 | | * failed to send. |
1339 | | */ |
1340 | 2.73M | TAILQ_INIT(&asoc->strmout[i].outqueue); |
1341 | 2.73M | asoc->ss_functions.sctp_ss_init_stream(stcb, &asoc->strmout[i], NULL); |
1342 | 2.73M | asoc->strmout[i].chunks_on_queues = 0; |
1343 | | #if defined(SCTP_DETAILED_STR_STATS) |
1344 | | for (j = 0; j < SCTP_PR_SCTP_MAX + 1; j++) { |
1345 | | asoc->strmout[i].abandoned_sent[j] = 0; |
1346 | | asoc->strmout[i].abandoned_unsent[j] = 0; |
1347 | | } |
1348 | | #else |
1349 | 2.73M | asoc->strmout[i].abandoned_sent[0] = 0; |
1350 | 2.73M | asoc->strmout[i].abandoned_unsent[0] = 0; |
1351 | 2.73M | #endif |
1352 | 2.73M | asoc->strmout[i].next_mid_ordered = 0; |
1353 | 2.73M | asoc->strmout[i].next_mid_unordered = 0; |
1354 | 2.73M | asoc->strmout[i].sid = i; |
1355 | 2.73M | asoc->strmout[i].last_msg_incomplete = 0; |
1356 | 2.73M | asoc->strmout[i].state = SCTP_STREAM_OPENING; |
1357 | 2.73M | } |
1358 | 10.6k | asoc->ss_functions.sctp_ss_init(stcb, asoc); |
1359 | 10.6k | SCTP_TCB_UNLOCK(stcb); |
1360 | | |
1361 | | /* Now the mapping array */ |
1362 | 10.6k | asoc->mapping_array_size = SCTP_INITIAL_MAPPING_ARRAY; |
1363 | 10.6k | SCTP_MALLOC(asoc->mapping_array, uint8_t *, asoc->mapping_array_size, |
1364 | 10.6k | SCTP_M_MAP); |
1365 | 10.6k | if (asoc->mapping_array == NULL) { |
1366 | 0 | SCTP_FREE(asoc->strmout, SCTP_M_STRMO); |
1367 | 0 | SCTP_LTRACE_ERR_RET(NULL, stcb, NULL, SCTP_FROM_SCTPUTIL, ENOMEM); |
1368 | 0 | return (ENOMEM); |
1369 | 0 | } |
1370 | 10.6k | memset(asoc->mapping_array, 0, asoc->mapping_array_size); |
1371 | 10.6k | SCTP_MALLOC(asoc->nr_mapping_array, uint8_t *, asoc->mapping_array_size, |
1372 | 10.6k | SCTP_M_MAP); |
1373 | 10.6k | if (asoc->nr_mapping_array == NULL) { |
1374 | 0 | SCTP_FREE(asoc->strmout, SCTP_M_STRMO); |
1375 | 0 | SCTP_FREE(asoc->mapping_array, SCTP_M_MAP); |
1376 | 0 | SCTP_LTRACE_ERR_RET(NULL, stcb, NULL, SCTP_FROM_SCTPUTIL, ENOMEM); |
1377 | 0 | return (ENOMEM); |
1378 | 0 | } |
1379 | 10.6k | memset(asoc->nr_mapping_array, 0, asoc->mapping_array_size); |
1380 | | |
1381 | | /* Now the init of the other outqueues */ |
1382 | 10.6k | TAILQ_INIT(&asoc->free_chunks); |
1383 | 10.6k | TAILQ_INIT(&asoc->control_send_queue); |
1384 | 10.6k | TAILQ_INIT(&asoc->asconf_send_queue); |
1385 | 10.6k | TAILQ_INIT(&asoc->send_queue); |
1386 | 10.6k | TAILQ_INIT(&asoc->sent_queue); |
1387 | 10.6k | TAILQ_INIT(&asoc->resetHead); |
1388 | 10.6k | asoc->max_inbound_streams = inp->sctp_ep.max_open_streams_intome; |
1389 | 10.6k | TAILQ_INIT(&asoc->asconf_queue); |
1390 | | /* authentication fields */ |
1391 | 10.6k | asoc->authinfo.random = NULL; |
1392 | 10.6k | asoc->authinfo.active_keyid = 0; |
1393 | 10.6k | asoc->authinfo.assoc_key = NULL; |
1394 | 10.6k | asoc->authinfo.assoc_keyid = 0; |
1395 | 10.6k | asoc->authinfo.recv_key = NULL; |
1396 | 10.6k | asoc->authinfo.recv_keyid = 0; |
1397 | 10.6k | LIST_INIT(&asoc->shared_keys); |
1398 | 10.6k | asoc->marked_retrans = 0; |
1399 | 10.6k | asoc->port = inp->sctp_ep.port; |
1400 | 10.6k | asoc->timoinit = 0; |
1401 | 10.6k | asoc->timodata = 0; |
1402 | 10.6k | asoc->timosack = 0; |
1403 | 10.6k | asoc->timoshutdown = 0; |
1404 | 10.6k | asoc->timoheartbeat = 0; |
1405 | 10.6k | asoc->timocookie = 0; |
1406 | 10.6k | asoc->timoshutdownack = 0; |
1407 | 10.6k | (void)SCTP_GETTIME_TIMEVAL(&asoc->start_time); |
1408 | 10.6k | asoc->discontinuity_time = asoc->start_time; |
1409 | 53.1k | for (i = 0; i < SCTP_PR_SCTP_MAX + 1; i++) { |
1410 | 42.5k | asoc->abandoned_unsent[i] = 0; |
1411 | 42.5k | asoc->abandoned_sent[i] = 0; |
1412 | 42.5k | } |
1413 | | /* sa_ignore MEMLEAK {memory is put in the assoc mapping array and freed later when |
1414 | | * the association is freed. |
1415 | | */ |
1416 | 10.6k | return (0); |
1417 | 10.6k | } |
1418 | | |
1419 | | void |
1420 | | sctp_print_mapping_array(struct sctp_association *asoc) |
1421 | 0 | { |
1422 | 0 | unsigned int i, limit; |
1423 | |
|
1424 | 0 | SCTP_PRINTF("Mapping array size: %d, baseTSN: %8.8x, cumAck: %8.8x, highestTSN: (%8.8x, %8.8x).\n", |
1425 | 0 | asoc->mapping_array_size, |
1426 | 0 | asoc->mapping_array_base_tsn, |
1427 | 0 | asoc->cumulative_tsn, |
1428 | 0 | asoc->highest_tsn_inside_map, |
1429 | 0 | asoc->highest_tsn_inside_nr_map); |
1430 | 0 | for (limit = asoc->mapping_array_size; limit > 1; limit--) { |
1431 | 0 | if (asoc->mapping_array[limit - 1] != 0) { |
1432 | 0 | break; |
1433 | 0 | } |
1434 | 0 | } |
1435 | 0 | SCTP_PRINTF("Renegable mapping array (last %d entries are zero):\n", asoc->mapping_array_size - limit); |
1436 | 0 | for (i = 0; i < limit; i++) { |
1437 | 0 | SCTP_PRINTF("%2.2x%c", asoc->mapping_array[i], ((i + 1) % 16) ? ' ' : '\n'); |
1438 | 0 | } |
1439 | 0 | if (limit % 16) |
1440 | 0 | SCTP_PRINTF("\n"); |
1441 | 0 | for (limit = asoc->mapping_array_size; limit > 1; limit--) { |
1442 | 0 | if (asoc->nr_mapping_array[limit - 1]) { |
1443 | 0 | break; |
1444 | 0 | } |
1445 | 0 | } |
1446 | 0 | SCTP_PRINTF("Non renegable mapping array (last %d entries are zero):\n", asoc->mapping_array_size - limit); |
1447 | 0 | for (i = 0; i < limit; i++) { |
1448 | 0 | SCTP_PRINTF("%2.2x%c", asoc->nr_mapping_array[i], ((i + 1) % 16) ? ' ': '\n'); |
1449 | 0 | } |
1450 | 0 | if (limit % 16) |
1451 | 0 | SCTP_PRINTF("\n"); |
1452 | 0 | } |
1453 | | |
1454 | | int |
1455 | | sctp_expand_mapping_array(struct sctp_association *asoc, uint32_t needed) |
1456 | 2.36k | { |
1457 | | /* mapping array needs to grow */ |
1458 | 2.36k | uint8_t *new_array1, *new_array2; |
1459 | 2.36k | uint32_t new_size; |
1460 | | |
1461 | 2.36k | new_size = asoc->mapping_array_size + ((needed+7)/8 + SCTP_MAPPING_ARRAY_INCR); |
1462 | 2.36k | SCTP_MALLOC(new_array1, uint8_t *, new_size, SCTP_M_MAP); |
1463 | 2.36k | SCTP_MALLOC(new_array2, uint8_t *, new_size, SCTP_M_MAP); |
1464 | 2.36k | if ((new_array1 == NULL) || (new_array2 == NULL)) { |
1465 | | /* can't get more, forget it */ |
1466 | 0 | SCTP_PRINTF("No memory for expansion of SCTP mapping array %d\n", new_size); |
1467 | 0 | if (new_array1) { |
1468 | 0 | SCTP_FREE(new_array1, SCTP_M_MAP); |
1469 | 0 | } |
1470 | 0 | if (new_array2) { |
1471 | 0 | SCTP_FREE(new_array2, SCTP_M_MAP); |
1472 | 0 | } |
1473 | 0 | return (-1); |
1474 | 0 | } |
1475 | 2.36k | memset(new_array1, 0, new_size); |
1476 | 2.36k | memset(new_array2, 0, new_size); |
1477 | 2.36k | memcpy(new_array1, asoc->mapping_array, asoc->mapping_array_size); |
1478 | 2.36k | memcpy(new_array2, asoc->nr_mapping_array, asoc->mapping_array_size); |
1479 | 2.36k | SCTP_FREE(asoc->mapping_array, SCTP_M_MAP); |
1480 | 2.36k | SCTP_FREE(asoc->nr_mapping_array, SCTP_M_MAP); |
1481 | 2.36k | asoc->mapping_array = new_array1; |
1482 | 2.36k | asoc->nr_mapping_array = new_array2; |
1483 | 2.36k | asoc->mapping_array_size = new_size; |
1484 | 2.36k | return (0); |
1485 | 2.36k | } |
1486 | | |
1487 | | static void |
1488 | | sctp_iterator_work(struct sctp_iterator *it) |
1489 | 0 | { |
1490 | | #if defined(__FreeBSD__) && !defined(__Userspace__) |
1491 | | struct epoch_tracker et; |
1492 | | #endif |
1493 | 0 | struct sctp_inpcb *tinp; |
1494 | 0 | int iteration_count = 0; |
1495 | 0 | int inp_skip = 0; |
1496 | 0 | int first_in = 1; |
1497 | |
|
1498 | | #if defined(__FreeBSD__) && !defined(__Userspace__) |
1499 | | NET_EPOCH_ENTER(et); |
1500 | | #endif |
1501 | 0 | SCTP_INP_INFO_RLOCK(); |
1502 | 0 | SCTP_ITERATOR_LOCK(); |
1503 | 0 | sctp_it_ctl.cur_it = it; |
1504 | 0 | if (it->inp) { |
1505 | 0 | SCTP_INP_RLOCK(it->inp); |
1506 | 0 | SCTP_INP_DECR_REF(it->inp); |
1507 | 0 | } |
1508 | 0 | if (it->inp == NULL) { |
1509 | | /* iterator is complete */ |
1510 | 0 | done_with_iterator: |
1511 | 0 | sctp_it_ctl.cur_it = NULL; |
1512 | 0 | SCTP_ITERATOR_UNLOCK(); |
1513 | 0 | SCTP_INP_INFO_RUNLOCK(); |
1514 | 0 | if (it->function_atend != NULL) { |
1515 | 0 | (*it->function_atend) (it->pointer, it->val); |
1516 | 0 | } |
1517 | 0 | SCTP_FREE(it, SCTP_M_ITER); |
1518 | | #if defined(__FreeBSD__) && !defined(__Userspace__) |
1519 | | NET_EPOCH_EXIT(et); |
1520 | | #endif |
1521 | 0 | return; |
1522 | 0 | } |
1523 | 0 | select_a_new_ep: |
1524 | 0 | if (first_in) { |
1525 | 0 | first_in = 0; |
1526 | 0 | } else { |
1527 | 0 | SCTP_INP_RLOCK(it->inp); |
1528 | 0 | } |
1529 | 0 | while (((it->pcb_flags) && |
1530 | 0 | ((it->inp->sctp_flags & it->pcb_flags) != it->pcb_flags)) || |
1531 | 0 | ((it->pcb_features) && |
1532 | 0 | ((it->inp->sctp_features & it->pcb_features) != it->pcb_features))) { |
1533 | | /* endpoint flags or features don't match, so keep looking */ |
1534 | 0 | if (it->iterator_flags & SCTP_ITERATOR_DO_SINGLE_INP) { |
1535 | 0 | SCTP_INP_RUNLOCK(it->inp); |
1536 | 0 | goto done_with_iterator; |
1537 | 0 | } |
1538 | 0 | tinp = it->inp; |
1539 | 0 | it->inp = LIST_NEXT(it->inp, sctp_list); |
1540 | 0 | it->stcb = NULL; |
1541 | 0 | SCTP_INP_RUNLOCK(tinp); |
1542 | 0 | if (it->inp == NULL) { |
1543 | 0 | goto done_with_iterator; |
1544 | 0 | } |
1545 | 0 | SCTP_INP_RLOCK(it->inp); |
1546 | 0 | } |
1547 | | /* now go through each assoc which is in the desired state */ |
1548 | 0 | if (it->done_current_ep == 0) { |
1549 | 0 | if (it->function_inp != NULL) |
1550 | 0 | inp_skip = (*it->function_inp)(it->inp, it->pointer, it->val); |
1551 | 0 | it->done_current_ep = 1; |
1552 | 0 | } |
1553 | 0 | if (it->stcb == NULL) { |
1554 | | /* run the per instance function */ |
1555 | 0 | it->stcb = LIST_FIRST(&it->inp->sctp_asoc_list); |
1556 | 0 | } |
1557 | 0 | if ((inp_skip) || it->stcb == NULL) { |
1558 | 0 | if (it->function_inp_end != NULL) { |
1559 | 0 | inp_skip = (*it->function_inp_end)(it->inp, |
1560 | 0 | it->pointer, |
1561 | 0 | it->val); |
1562 | 0 | } |
1563 | 0 | SCTP_INP_RUNLOCK(it->inp); |
1564 | 0 | goto no_stcb; |
1565 | 0 | } |
1566 | 0 | while (it->stcb != NULL) { |
1567 | 0 | SCTP_TCB_LOCK(it->stcb); |
1568 | 0 | if (it->asoc_state && ((it->stcb->asoc.state & it->asoc_state) != it->asoc_state)) { |
1569 | | /* not in the right state... keep looking */ |
1570 | 0 | SCTP_TCB_UNLOCK(it->stcb); |
1571 | 0 | goto next_assoc; |
1572 | 0 | } |
1573 | | /* see if we have limited out the iterator loop */ |
1574 | 0 | iteration_count++; |
1575 | 0 | if (iteration_count > SCTP_ITERATOR_MAX_AT_ONCE) { |
1576 | | /* Pause to let others grab the lock */ |
1577 | 0 | atomic_add_int(&it->stcb->asoc.refcnt, 1); |
1578 | 0 | SCTP_TCB_UNLOCK(it->stcb); |
1579 | 0 | SCTP_INP_INCR_REF(it->inp); |
1580 | 0 | SCTP_INP_RUNLOCK(it->inp); |
1581 | 0 | SCTP_ITERATOR_UNLOCK(); |
1582 | 0 | SCTP_INP_INFO_RUNLOCK(); |
1583 | 0 | SCTP_INP_INFO_RLOCK(); |
1584 | 0 | SCTP_ITERATOR_LOCK(); |
1585 | 0 | if (sctp_it_ctl.iterator_flags) { |
1586 | | /* We won't be staying here */ |
1587 | 0 | SCTP_INP_DECR_REF(it->inp); |
1588 | 0 | atomic_subtract_int(&it->stcb->asoc.refcnt, 1); |
1589 | 0 | #if !(defined(__FreeBSD__) && !defined(__Userspace__)) |
1590 | 0 | if (sctp_it_ctl.iterator_flags & |
1591 | 0 | SCTP_ITERATOR_MUST_EXIT) { |
1592 | 0 | goto done_with_iterator; |
1593 | 0 | } |
1594 | 0 | #endif |
1595 | 0 | if (sctp_it_ctl.iterator_flags & |
1596 | 0 | SCTP_ITERATOR_STOP_CUR_IT) { |
1597 | 0 | sctp_it_ctl.iterator_flags &= ~SCTP_ITERATOR_STOP_CUR_IT; |
1598 | 0 | goto done_with_iterator; |
1599 | 0 | } |
1600 | 0 | if (sctp_it_ctl.iterator_flags & |
1601 | 0 | SCTP_ITERATOR_STOP_CUR_INP) { |
1602 | 0 | sctp_it_ctl.iterator_flags &= ~SCTP_ITERATOR_STOP_CUR_INP; |
1603 | 0 | goto no_stcb; |
1604 | 0 | } |
1605 | | /* If we reach here huh? */ |
1606 | 0 | SCTP_PRINTF("Unknown it ctl flag %x\n", |
1607 | 0 | sctp_it_ctl.iterator_flags); |
1608 | 0 | sctp_it_ctl.iterator_flags = 0; |
1609 | 0 | } |
1610 | 0 | SCTP_INP_RLOCK(it->inp); |
1611 | 0 | SCTP_INP_DECR_REF(it->inp); |
1612 | 0 | SCTP_TCB_LOCK(it->stcb); |
1613 | 0 | atomic_subtract_int(&it->stcb->asoc.refcnt, 1); |
1614 | 0 | iteration_count = 0; |
1615 | 0 | } |
1616 | 0 | KASSERT(it->inp == it->stcb->sctp_ep, |
1617 | 0 | ("%s: stcb %p does not belong to inp %p, but inp %p", |
1618 | 0 | __func__, it->stcb, it->inp, it->stcb->sctp_ep)); |
1619 | 0 | SCTP_INP_RLOCK_ASSERT(it->inp); |
1620 | 0 | SCTP_TCB_LOCK_ASSERT(it->stcb); |
1621 | | |
1622 | | /* run function on this one */ |
1623 | 0 | (*it->function_assoc)(it->inp, it->stcb, it->pointer, it->val); |
1624 | 0 | SCTP_INP_RLOCK_ASSERT(it->inp); |
1625 | 0 | SCTP_TCB_LOCK_ASSERT(it->stcb); |
1626 | | |
1627 | | /* |
1628 | | * we lie here, it really needs to have its own type but |
1629 | | * first I must verify that this won't effect things :-0 |
1630 | | */ |
1631 | 0 | if (it->no_chunk_output == 0) { |
1632 | 0 | sctp_chunk_output(it->inp, it->stcb, SCTP_OUTPUT_FROM_T3, SCTP_SO_NOT_LOCKED); |
1633 | 0 | SCTP_INP_RLOCK_ASSERT(it->inp); |
1634 | 0 | SCTP_TCB_LOCK_ASSERT(it->stcb); |
1635 | 0 | } |
1636 | | |
1637 | 0 | SCTP_TCB_UNLOCK(it->stcb); |
1638 | 0 | next_assoc: |
1639 | 0 | it->stcb = LIST_NEXT(it->stcb, sctp_tcblist); |
1640 | 0 | if (it->stcb == NULL) { |
1641 | | /* Run last function */ |
1642 | 0 | if (it->function_inp_end != NULL) { |
1643 | 0 | inp_skip = (*it->function_inp_end)(it->inp, |
1644 | 0 | it->pointer, |
1645 | 0 | it->val); |
1646 | 0 | } |
1647 | 0 | } |
1648 | 0 | } |
1649 | 0 | SCTP_INP_RUNLOCK(it->inp); |
1650 | 0 | no_stcb: |
1651 | | /* done with all assocs on this endpoint, move on to next endpoint */ |
1652 | 0 | it->done_current_ep = 0; |
1653 | 0 | if (it->iterator_flags & SCTP_ITERATOR_DO_SINGLE_INP) { |
1654 | 0 | it->inp = NULL; |
1655 | 0 | } else { |
1656 | 0 | it->inp = LIST_NEXT(it->inp, sctp_list); |
1657 | 0 | } |
1658 | 0 | it->stcb = NULL; |
1659 | 0 | if (it->inp == NULL) { |
1660 | 0 | goto done_with_iterator; |
1661 | 0 | } |
1662 | 0 | goto select_a_new_ep; |
1663 | 0 | } |
1664 | | |
1665 | | void |
1666 | | sctp_iterator_worker(void) |
1667 | 0 | { |
1668 | 0 | struct sctp_iterator *it; |
1669 | | |
1670 | | /* This function is called with the WQ lock in place */ |
1671 | 0 | sctp_it_ctl.iterator_running = 1; |
1672 | 0 | while ((it = TAILQ_FIRST(&sctp_it_ctl.iteratorhead)) != NULL) { |
1673 | | /* now lets work on this one */ |
1674 | 0 | TAILQ_REMOVE(&sctp_it_ctl.iteratorhead, it, sctp_nxt_itr); |
1675 | 0 | SCTP_IPI_ITERATOR_WQ_UNLOCK(); |
1676 | | #if defined(__FreeBSD__) && !defined(__Userspace__) |
1677 | | CURVNET_SET(it->vn); |
1678 | | #endif |
1679 | 0 | sctp_iterator_work(it); |
1680 | | #if defined(__FreeBSD__) && !defined(__Userspace__) |
1681 | | CURVNET_RESTORE(); |
1682 | | #endif |
1683 | 0 | SCTP_IPI_ITERATOR_WQ_LOCK(); |
1684 | | #if !defined(__FreeBSD__) && !defined(__Userspace__) |
1685 | | if (sctp_it_ctl.iterator_flags & SCTP_ITERATOR_MUST_EXIT) { |
1686 | | break; |
1687 | | } |
1688 | | #endif |
1689 | | /*sa_ignore FREED_MEMORY*/ |
1690 | 0 | } |
1691 | 0 | sctp_it_ctl.iterator_running = 0; |
1692 | 0 | return; |
1693 | 0 | } |
1694 | | |
1695 | | static void |
1696 | | sctp_handle_addr_wq(void) |
1697 | 0 | { |
1698 | | /* deal with the ADDR wq from the rtsock calls */ |
1699 | 0 | struct sctp_laddr *wi, *nwi; |
1700 | 0 | struct sctp_asconf_iterator *asc; |
1701 | |
|
1702 | 0 | SCTP_MALLOC(asc, struct sctp_asconf_iterator *, |
1703 | 0 | sizeof(struct sctp_asconf_iterator), SCTP_M_ASC_IT); |
1704 | 0 | if (asc == NULL) { |
1705 | | /* Try later, no memory */ |
1706 | 0 | sctp_timer_start(SCTP_TIMER_TYPE_ADDR_WQ, |
1707 | 0 | (struct sctp_inpcb *)NULL, |
1708 | 0 | (struct sctp_tcb *)NULL, |
1709 | 0 | (struct sctp_nets *)NULL); |
1710 | 0 | return; |
1711 | 0 | } |
1712 | 0 | LIST_INIT(&asc->list_of_work); |
1713 | 0 | asc->cnt = 0; |
1714 | |
|
1715 | 0 | LIST_FOREACH_SAFE(wi, &SCTP_BASE_INFO(addr_wq), sctp_nxt_addr, nwi) { |
1716 | 0 | LIST_REMOVE(wi, sctp_nxt_addr); |
1717 | 0 | LIST_INSERT_HEAD(&asc->list_of_work, wi, sctp_nxt_addr); |
1718 | 0 | asc->cnt++; |
1719 | 0 | } |
1720 | |
|
1721 | 0 | if (asc->cnt == 0) { |
1722 | 0 | SCTP_FREE(asc, SCTP_M_ASC_IT); |
1723 | 0 | } else { |
1724 | 0 | int ret; |
1725 | |
|
1726 | 0 | ret = sctp_initiate_iterator(sctp_asconf_iterator_ep, |
1727 | 0 | sctp_asconf_iterator_stcb, |
1728 | 0 | NULL, /* No ep end for boundall */ |
1729 | 0 | SCTP_PCB_FLAGS_BOUNDALL, |
1730 | 0 | SCTP_PCB_ANY_FEATURES, |
1731 | 0 | SCTP_ASOC_ANY_STATE, |
1732 | 0 | (void *)asc, 0, |
1733 | 0 | sctp_asconf_iterator_end, NULL, 0); |
1734 | 0 | if (ret) { |
1735 | 0 | SCTP_PRINTF("Failed to initiate iterator for handle_addr_wq\n"); |
1736 | | /* Freeing if we are stopping or put back on the addr_wq. */ |
1737 | 0 | if (SCTP_BASE_VAR(sctp_pcb_initialized) == 0) { |
1738 | 0 | sctp_asconf_iterator_end(asc, 0); |
1739 | 0 | } else { |
1740 | 0 | LIST_FOREACH(wi, &asc->list_of_work, sctp_nxt_addr) { |
1741 | 0 | LIST_INSERT_HEAD(&SCTP_BASE_INFO(addr_wq), wi, sctp_nxt_addr); |
1742 | 0 | } |
1743 | 0 | SCTP_FREE(asc, SCTP_M_ASC_IT); |
1744 | 0 | } |
1745 | 0 | } |
1746 | 0 | } |
1747 | 0 | } |
1748 | | |
1749 | | /*- |
1750 | | * The following table shows which pointers for the inp, stcb, or net are |
1751 | | * stored for each timer after it was started. |
1752 | | * |
1753 | | *|Name |Timer |inp |stcb|net | |
1754 | | *|-----------------------------|-----------------------------|----|----|----| |
1755 | | *|SCTP_TIMER_TYPE_SEND |net->rxt_timer |Yes |Yes |Yes | |
1756 | | *|SCTP_TIMER_TYPE_INIT |net->rxt_timer |Yes |Yes |Yes | |
1757 | | *|SCTP_TIMER_TYPE_RECV |stcb->asoc.dack_timer |Yes |Yes |No | |
1758 | | *|SCTP_TIMER_TYPE_SHUTDOWN |net->rxt_timer |Yes |Yes |Yes | |
1759 | | *|SCTP_TIMER_TYPE_HEARTBEAT |net->hb_timer |Yes |Yes |Yes | |
1760 | | *|SCTP_TIMER_TYPE_COOKIE |net->rxt_timer |Yes |Yes |Yes | |
1761 | | *|SCTP_TIMER_TYPE_NEWCOOKIE |inp->sctp_ep.signature_change|Yes |No |No | |
1762 | | *|SCTP_TIMER_TYPE_PATHMTURAISE |net->pmtu_timer |Yes |Yes |Yes | |
1763 | | *|SCTP_TIMER_TYPE_SHUTDOWNACK |net->rxt_timer |Yes |Yes |Yes | |
1764 | | *|SCTP_TIMER_TYPE_ASCONF |stcb->asoc.asconf_timer |Yes |Yes |Yes | |
1765 | | *|SCTP_TIMER_TYPE_SHUTDOWNGUARD|stcb->asoc.shut_guard_timer |Yes |Yes |No | |
1766 | | *|SCTP_TIMER_TYPE_AUTOCLOSE |stcb->asoc.autoclose_timer |Yes |Yes |No | |
1767 | | *|SCTP_TIMER_TYPE_STRRESET |stcb->asoc.strreset_timer |Yes |Yes |No | |
1768 | | *|SCTP_TIMER_TYPE_INPKILL |inp->sctp_ep.signature_change|Yes |No |No | |
1769 | | *|SCTP_TIMER_TYPE_ASOCKILL |stcb->asoc.strreset_timer |Yes |Yes |No | |
1770 | | *|SCTP_TIMER_TYPE_ADDR_WQ |SCTP_BASE_INFO(addr_wq_timer)|No |No |No | |
1771 | | *|SCTP_TIMER_TYPE_PRIM_DELETED |stcb->asoc.delete_prim_timer |Yes |Yes |No | |
1772 | | */ |
1773 | | |
1774 | | void |
1775 | | sctp_timeout_handler(void *t) |
1776 | 2.14k | { |
1777 | | #if defined(__FreeBSD__) && !defined(__Userspace__) |
1778 | | struct epoch_tracker et; |
1779 | | #endif |
1780 | 2.14k | struct timeval tv; |
1781 | 2.14k | struct sctp_inpcb *inp; |
1782 | 2.14k | struct sctp_tcb *stcb; |
1783 | 2.14k | struct sctp_nets *net; |
1784 | 2.14k | struct sctp_timer *tmr; |
1785 | 2.14k | struct mbuf *op_err; |
1786 | | #if defined(__APPLE__) && !defined(__Userspace__) |
1787 | | struct socket *so; |
1788 | | #endif |
1789 | 2.14k | #if defined(__Userspace__) |
1790 | 2.14k | struct socket *upcall_socket = NULL; |
1791 | 2.14k | #endif |
1792 | 2.14k | int type; |
1793 | 2.14k | int i, secret; |
1794 | 2.14k | bool did_output, released_asoc_reference; |
1795 | | |
1796 | | /* |
1797 | | * If inp, stcb or net are not NULL, then references to these were |
1798 | | * added when the timer was started, and must be released before this |
1799 | | * function returns. |
1800 | | */ |
1801 | 2.14k | tmr = (struct sctp_timer *)t; |
1802 | 2.14k | inp = (struct sctp_inpcb *)tmr->ep; |
1803 | 2.14k | stcb = (struct sctp_tcb *)tmr->tcb; |
1804 | 2.14k | net = (struct sctp_nets *)tmr->net; |
1805 | | #if defined(__FreeBSD__) && !defined(__Userspace__) |
1806 | | CURVNET_SET((struct vnet *)tmr->vnet); |
1807 | | NET_EPOCH_ENTER(et); |
1808 | | #endif |
1809 | 2.14k | released_asoc_reference = false; |
1810 | | |
1811 | | #ifdef SCTP_AUDITING_ENABLED |
1812 | | sctp_audit_log(0xF0, (uint8_t) tmr->type); |
1813 | | sctp_auditing(3, inp, stcb, net); |
1814 | | #endif |
1815 | | |
1816 | | /* sanity checks... */ |
1817 | 2.14k | KASSERT(tmr->self == NULL || tmr->self == tmr, |
1818 | 2.14k | ("sctp_timeout_handler: tmr->self corrupted")); |
1819 | 2.14k | KASSERT(SCTP_IS_TIMER_TYPE_VALID(tmr->type), |
1820 | 2.14k | ("sctp_timeout_handler: invalid timer type %d", tmr->type)); |
1821 | 2.14k | type = tmr->type; |
1822 | 2.14k | KASSERT(stcb == NULL || stcb->sctp_ep == inp, |
1823 | 2.14k | ("sctp_timeout_handler of type %d: inp = %p, stcb->sctp_ep %p", |
1824 | 2.14k | type, stcb, stcb->sctp_ep)); |
1825 | 2.14k | tmr->stopped_from = 0xa001; |
1826 | 2.14k | if ((stcb != NULL) && (stcb->asoc.state == SCTP_STATE_EMPTY)) { |
1827 | 0 | SCTPDBG(SCTP_DEBUG_TIMER2, |
1828 | 0 | "Timer type %d handler exiting due to CLOSED association.\n", |
1829 | 0 | type); |
1830 | 0 | goto out_decr; |
1831 | 0 | } |
1832 | 2.14k | tmr->stopped_from = 0xa002; |
1833 | 2.14k | SCTPDBG(SCTP_DEBUG_TIMER2, "Timer type %d goes off.\n", type); |
1834 | 2.14k | if (!SCTP_OS_TIMER_ACTIVE(&tmr->timer)) { |
1835 | 0 | SCTPDBG(SCTP_DEBUG_TIMER2, |
1836 | 0 | "Timer type %d handler exiting due to not being active.\n", |
1837 | 0 | type); |
1838 | 0 | goto out_decr; |
1839 | 0 | } |
1840 | | |
1841 | 2.14k | tmr->stopped_from = 0xa003; |
1842 | 2.14k | if (stcb) { |
1843 | 2.12k | SCTP_TCB_LOCK(stcb); |
1844 | | /* |
1845 | | * Release reference so that association can be freed if |
1846 | | * necessary below. |
1847 | | * This is safe now that we have acquired the lock. |
1848 | | */ |
1849 | 2.12k | atomic_subtract_int(&stcb->asoc.refcnt, 1); |
1850 | 2.12k | released_asoc_reference = true; |
1851 | 2.12k | if ((type != SCTP_TIMER_TYPE_ASOCKILL) && |
1852 | 2.12k | ((stcb->asoc.state == SCTP_STATE_EMPTY) || |
1853 | 21 | (stcb->asoc.state & SCTP_STATE_ABOUT_TO_BE_FREED))) { |
1854 | 21 | SCTPDBG(SCTP_DEBUG_TIMER2, |
1855 | 21 | "Timer type %d handler exiting due to CLOSED association.\n", |
1856 | 21 | type); |
1857 | 21 | goto out; |
1858 | 21 | } |
1859 | 2.12k | } else if (inp != NULL) { |
1860 | 21 | SCTP_INP_WLOCK(inp); |
1861 | 21 | } else { |
1862 | 0 | SCTP_WQ_ADDR_LOCK(); |
1863 | 0 | } |
1864 | | |
1865 | | /* Record in stopped_from which timeout occurred. */ |
1866 | 2.12k | tmr->stopped_from = type; |
1867 | | /* mark as being serviced now */ |
1868 | 2.12k | if (SCTP_OS_TIMER_PENDING(&tmr->timer)) { |
1869 | | /* |
1870 | | * Callout has been rescheduled. |
1871 | | */ |
1872 | 0 | goto out; |
1873 | 0 | } |
1874 | 2.12k | if (!SCTP_OS_TIMER_ACTIVE(&tmr->timer)) { |
1875 | | /* |
1876 | | * Not active, so no action. |
1877 | | */ |
1878 | 0 | goto out; |
1879 | 0 | } |
1880 | 2.12k | SCTP_OS_TIMER_DEACTIVATE(&tmr->timer); |
1881 | | |
1882 | 2.12k | #if defined(__Userspace__) |
1883 | 2.12k | if ((stcb != NULL) && |
1884 | 2.12k | ((stcb->sctp_ep->sctp_flags & SCTP_PCB_FLAGS_SOCKET_GONE) == 0) && |
1885 | 2.12k | (stcb->sctp_socket != NULL)) { |
1886 | 0 | upcall_socket = stcb->sctp_socket; |
1887 | 0 | SOCK_LOCK(upcall_socket); |
1888 | 0 | soref(upcall_socket); |
1889 | 0 | SOCK_UNLOCK(upcall_socket); |
1890 | 0 | } |
1891 | 2.12k | #endif |
1892 | | /* call the handler for the appropriate timer type */ |
1893 | 2.12k | switch (type) { |
1894 | 0 | case SCTP_TIMER_TYPE_SEND: |
1895 | 0 | KASSERT(inp != NULL && stcb != NULL && net != NULL, |
1896 | 0 | ("timeout of type %d: inp = %p, stcb = %p, net = %p", |
1897 | 0 | type, inp, stcb, net)); |
1898 | 0 | SCTP_STAT_INCR(sctps_timodata); |
1899 | 0 | stcb->asoc.timodata++; |
1900 | 0 | stcb->asoc.num_send_timers_up--; |
1901 | 0 | if (stcb->asoc.num_send_timers_up < 0) { |
1902 | 0 | stcb->asoc.num_send_timers_up = 0; |
1903 | 0 | } |
1904 | 0 | SCTP_TCB_LOCK_ASSERT(stcb); |
1905 | 0 | if (sctp_t3rxt_timer(inp, stcb, net)) { |
1906 | | /* no need to unlock on tcb its gone */ |
1907 | |
|
1908 | 0 | goto out_decr; |
1909 | 0 | } |
1910 | 0 | SCTP_TCB_LOCK_ASSERT(stcb); |
1911 | | #ifdef SCTP_AUDITING_ENABLED |
1912 | | sctp_auditing(4, inp, stcb, net); |
1913 | | #endif |
1914 | 0 | sctp_chunk_output(inp, stcb, SCTP_OUTPUT_FROM_T3, SCTP_SO_NOT_LOCKED); |
1915 | 0 | did_output = true; |
1916 | 0 | if ((stcb->asoc.num_send_timers_up == 0) && |
1917 | 0 | (stcb->asoc.sent_queue_cnt > 0)) { |
1918 | 0 | struct sctp_tmit_chunk *chk; |
1919 | | |
1920 | | /* |
1921 | | * Safeguard. If there on some on the sent queue |
1922 | | * somewhere but no timers running something is |
1923 | | * wrong... so we start a timer on the first chunk |
1924 | | * on the send queue on whatever net it is sent to. |
1925 | | */ |
1926 | 0 | TAILQ_FOREACH(chk, &stcb->asoc.sent_queue, sctp_next) { |
1927 | 0 | if (chk->whoTo != NULL) { |
1928 | 0 | break; |
1929 | 0 | } |
1930 | 0 | } |
1931 | 0 | if (chk != NULL) { |
1932 | 0 | sctp_timer_start(SCTP_TIMER_TYPE_SEND, stcb->sctp_ep, stcb, chk->whoTo); |
1933 | 0 | } |
1934 | 0 | } |
1935 | 0 | break; |
1936 | 0 | case SCTP_TIMER_TYPE_INIT: |
1937 | 0 | KASSERT(inp != NULL && stcb != NULL && net != NULL, |
1938 | 0 | ("timeout of type %d: inp = %p, stcb = %p, net = %p", |
1939 | 0 | type, inp, stcb, net)); |
1940 | 0 | SCTP_STAT_INCR(sctps_timoinit); |
1941 | 0 | stcb->asoc.timoinit++; |
1942 | 0 | if (sctp_t1init_timer(inp, stcb, net)) { |
1943 | | /* no need to unlock on tcb its gone */ |
1944 | 0 | goto out_decr; |
1945 | 0 | } |
1946 | 0 | did_output = false; |
1947 | 0 | break; |
1948 | 0 | case SCTP_TIMER_TYPE_RECV: |
1949 | 0 | KASSERT(inp != NULL && stcb != NULL && net == NULL, |
1950 | 0 | ("timeout of type %d: inp = %p, stcb = %p, net = %p", |
1951 | 0 | type, inp, stcb, net)); |
1952 | 0 | SCTP_STAT_INCR(sctps_timosack); |
1953 | 0 | stcb->asoc.timosack++; |
1954 | 0 | sctp_send_sack(stcb, SCTP_SO_NOT_LOCKED); |
1955 | | #ifdef SCTP_AUDITING_ENABLED |
1956 | | sctp_auditing(4, inp, stcb, NULL); |
1957 | | #endif |
1958 | 0 | sctp_chunk_output(inp, stcb, SCTP_OUTPUT_FROM_SACK_TMR, SCTP_SO_NOT_LOCKED); |
1959 | 0 | did_output = true; |
1960 | 0 | break; |
1961 | 0 | case SCTP_TIMER_TYPE_SHUTDOWN: |
1962 | 0 | KASSERT(inp != NULL && stcb != NULL && net != NULL, |
1963 | 0 | ("timeout of type %d: inp = %p, stcb = %p, net = %p", |
1964 | 0 | type, inp, stcb, net)); |
1965 | 0 | SCTP_STAT_INCR(sctps_timoshutdown); |
1966 | 0 | stcb->asoc.timoshutdown++; |
1967 | 0 | if (sctp_shutdown_timer(inp, stcb, net)) { |
1968 | | /* no need to unlock on tcb its gone */ |
1969 | 0 | goto out_decr; |
1970 | 0 | } |
1971 | | #ifdef SCTP_AUDITING_ENABLED |
1972 | | sctp_auditing(4, inp, stcb, net); |
1973 | | #endif |
1974 | 0 | sctp_chunk_output(inp, stcb, SCTP_OUTPUT_FROM_SHUT_TMR, SCTP_SO_NOT_LOCKED); |
1975 | 0 | did_output = true; |
1976 | 0 | break; |
1977 | 0 | case SCTP_TIMER_TYPE_HEARTBEAT: |
1978 | 0 | KASSERT(inp != NULL && stcb != NULL && net != NULL, |
1979 | 0 | ("timeout of type %d: inp = %p, stcb = %p, net = %p", |
1980 | 0 | type, inp, stcb, net)); |
1981 | 0 | SCTP_STAT_INCR(sctps_timoheartbeat); |
1982 | 0 | stcb->asoc.timoheartbeat++; |
1983 | 0 | if (sctp_heartbeat_timer(inp, stcb, net)) { |
1984 | | /* no need to unlock on tcb its gone */ |
1985 | 0 | goto out_decr; |
1986 | 0 | } |
1987 | | #ifdef SCTP_AUDITING_ENABLED |
1988 | | sctp_auditing(4, inp, stcb, net); |
1989 | | #endif |
1990 | 0 | if ((net->dest_state & SCTP_ADDR_NOHB) == 0) { |
1991 | 0 | sctp_timer_start(SCTP_TIMER_TYPE_HEARTBEAT, inp, stcb, net); |
1992 | 0 | sctp_chunk_output(inp, stcb, SCTP_OUTPUT_FROM_HB_TMR, SCTP_SO_NOT_LOCKED); |
1993 | 0 | did_output = true; |
1994 | 0 | } else { |
1995 | 0 | did_output = false; |
1996 | 0 | } |
1997 | 0 | break; |
1998 | 0 | case SCTP_TIMER_TYPE_COOKIE: |
1999 | 0 | KASSERT(inp != NULL && stcb != NULL && net != NULL, |
2000 | 0 | ("timeout of type %d: inp = %p, stcb = %p, net = %p", |
2001 | 0 | type, inp, stcb, net)); |
2002 | 0 | SCTP_STAT_INCR(sctps_timocookie); |
2003 | 0 | stcb->asoc.timocookie++; |
2004 | 0 | if (sctp_cookie_timer(inp, stcb, net)) { |
2005 | | /* no need to unlock on tcb its gone */ |
2006 | 0 | goto out_decr; |
2007 | 0 | } |
2008 | | #ifdef SCTP_AUDITING_ENABLED |
2009 | | sctp_auditing(4, inp, stcb, net); |
2010 | | #endif |
2011 | | /* |
2012 | | * We consider T3 and Cookie timer pretty much the same with |
2013 | | * respect to where from in chunk_output. |
2014 | | */ |
2015 | 0 | sctp_chunk_output(inp, stcb, SCTP_OUTPUT_FROM_T3, SCTP_SO_NOT_LOCKED); |
2016 | 0 | did_output = true; |
2017 | 0 | break; |
2018 | 0 | case SCTP_TIMER_TYPE_NEWCOOKIE: |
2019 | 0 | KASSERT(inp != NULL && stcb == NULL && net == NULL, |
2020 | 0 | ("timeout of type %d: inp = %p, stcb = %p, net = %p", |
2021 | 0 | type, inp, stcb, net)); |
2022 | 0 | SCTP_STAT_INCR(sctps_timosecret); |
2023 | 0 | (void)SCTP_GETTIME_TIMEVAL(&tv); |
2024 | 0 | inp->sctp_ep.time_of_secret_change = tv.tv_sec; |
2025 | 0 | inp->sctp_ep.last_secret_number = |
2026 | 0 | inp->sctp_ep.current_secret_number; |
2027 | 0 | inp->sctp_ep.current_secret_number++; |
2028 | 0 | if (inp->sctp_ep.current_secret_number >= |
2029 | 0 | SCTP_HOW_MANY_SECRETS) { |
2030 | 0 | inp->sctp_ep.current_secret_number = 0; |
2031 | 0 | } |
2032 | 0 | secret = (int)inp->sctp_ep.current_secret_number; |
2033 | 0 | for (i = 0; i < SCTP_NUMBER_OF_SECRETS; i++) { |
2034 | 0 | inp->sctp_ep.secret_key[secret][i] = |
2035 | 0 | sctp_select_initial_TSN(&inp->sctp_ep); |
2036 | 0 | } |
2037 | 0 | sctp_timer_start(SCTP_TIMER_TYPE_NEWCOOKIE, inp, NULL, NULL); |
2038 | 0 | did_output = false; |
2039 | 0 | break; |
2040 | 0 | case SCTP_TIMER_TYPE_PATHMTURAISE: |
2041 | 0 | KASSERT(inp != NULL && stcb != NULL && net != NULL, |
2042 | 0 | ("timeout of type %d: inp = %p, stcb = %p, net = %p", |
2043 | 0 | type, inp, stcb, net)); |
2044 | 0 | SCTP_STAT_INCR(sctps_timopathmtu); |
2045 | 0 | sctp_pathmtu_timer(inp, stcb, net); |
2046 | 0 | did_output = false; |
2047 | 0 | break; |
2048 | 0 | case SCTP_TIMER_TYPE_SHUTDOWNACK: |
2049 | 0 | KASSERT(inp != NULL && stcb != NULL && net != NULL, |
2050 | 0 | ("timeout of type %d: inp = %p, stcb = %p, net = %p", |
2051 | 0 | type, inp, stcb, net)); |
2052 | 0 | if (sctp_shutdownack_timer(inp, stcb, net)) { |
2053 | | /* no need to unlock on tcb its gone */ |
2054 | 0 | goto out_decr; |
2055 | 0 | } |
2056 | 0 | SCTP_STAT_INCR(sctps_timoshutdownack); |
2057 | 0 | stcb->asoc.timoshutdownack++; |
2058 | | #ifdef SCTP_AUDITING_ENABLED |
2059 | | sctp_auditing(4, inp, stcb, net); |
2060 | | #endif |
2061 | 0 | sctp_chunk_output(inp, stcb, SCTP_OUTPUT_FROM_SHUT_ACK_TMR, SCTP_SO_NOT_LOCKED); |
2062 | 0 | did_output = true; |
2063 | 0 | break; |
2064 | 0 | case SCTP_TIMER_TYPE_ASCONF: |
2065 | 0 | KASSERT(inp != NULL && stcb != NULL && net != NULL, |
2066 | 0 | ("timeout of type %d: inp = %p, stcb = %p, net = %p", |
2067 | 0 | type, inp, stcb, net)); |
2068 | 0 | SCTP_STAT_INCR(sctps_timoasconf); |
2069 | 0 | if (sctp_asconf_timer(inp, stcb, net)) { |
2070 | | /* no need to unlock on tcb its gone */ |
2071 | 0 | goto out_decr; |
2072 | 0 | } |
2073 | | #ifdef SCTP_AUDITING_ENABLED |
2074 | | sctp_auditing(4, inp, stcb, net); |
2075 | | #endif |
2076 | 0 | sctp_chunk_output(inp, stcb, SCTP_OUTPUT_FROM_ASCONF_TMR, SCTP_SO_NOT_LOCKED); |
2077 | 0 | did_output = true; |
2078 | 0 | break; |
2079 | 0 | case SCTP_TIMER_TYPE_SHUTDOWNGUARD: |
2080 | 0 | KASSERT(inp != NULL && stcb != NULL && net == NULL, |
2081 | 0 | ("timeout of type %d: inp = %p, stcb = %p, net = %p", |
2082 | 0 | type, inp, stcb, net)); |
2083 | 0 | SCTP_STAT_INCR(sctps_timoshutdownguard); |
2084 | 0 | op_err = sctp_generate_cause(SCTP_BASE_SYSCTL(sctp_diag_info_code), |
2085 | 0 | "Shutdown guard timer expired"); |
2086 | 0 | sctp_abort_an_association(inp, stcb, op_err, true, SCTP_SO_NOT_LOCKED); |
2087 | | /* no need to unlock on tcb its gone */ |
2088 | 0 | goto out_decr; |
2089 | 0 | case SCTP_TIMER_TYPE_AUTOCLOSE: |
2090 | 0 | KASSERT(inp != NULL && stcb != NULL && net == NULL, |
2091 | 0 | ("timeout of type %d: inp = %p, stcb = %p, net = %p", |
2092 | 0 | type, inp, stcb, net)); |
2093 | 0 | SCTP_STAT_INCR(sctps_timoautoclose); |
2094 | 0 | sctp_autoclose_timer(inp, stcb); |
2095 | 0 | sctp_chunk_output(inp, stcb, SCTP_OUTPUT_FROM_AUTOCLOSE_TMR, SCTP_SO_NOT_LOCKED); |
2096 | 0 | did_output = true; |
2097 | 0 | break; |
2098 | 0 | case SCTP_TIMER_TYPE_STRRESET: |
2099 | 0 | KASSERT(inp != NULL && stcb != NULL && net == NULL, |
2100 | 0 | ("timeout of type %d: inp = %p, stcb = %p, net = %p", |
2101 | 0 | type, inp, stcb, net)); |
2102 | 0 | SCTP_STAT_INCR(sctps_timostrmrst); |
2103 | 0 | if (sctp_strreset_timer(inp, stcb)) { |
2104 | | /* no need to unlock on tcb its gone */ |
2105 | 0 | goto out_decr; |
2106 | 0 | } |
2107 | 0 | sctp_chunk_output(inp, stcb, SCTP_OUTPUT_FROM_STRRST_TMR, SCTP_SO_NOT_LOCKED); |
2108 | 0 | did_output = true; |
2109 | 0 | break; |
2110 | 21 | case SCTP_TIMER_TYPE_INPKILL: |
2111 | 21 | KASSERT(inp != NULL && stcb == NULL && net == NULL, |
2112 | 21 | ("timeout of type %d: inp = %p, stcb = %p, net = %p", |
2113 | 21 | type, inp, stcb, net)); |
2114 | 21 | SCTP_STAT_INCR(sctps_timoinpkill); |
2115 | | /* |
2116 | | * special case, take away our increment since WE are the |
2117 | | * killer |
2118 | | */ |
2119 | 21 | sctp_timer_stop(SCTP_TIMER_TYPE_INPKILL, inp, NULL, NULL, |
2120 | 21 | SCTP_FROM_SCTPUTIL + SCTP_LOC_3); |
2121 | | #if defined(__APPLE__) && !defined(__Userspace__) |
2122 | | SCTP_SOCKET_LOCK(SCTP_INP_SO(inp), 1); |
2123 | | #endif |
2124 | 21 | SCTP_INP_DECR_REF(inp); |
2125 | 21 | SCTP_INP_WUNLOCK(inp); |
2126 | 21 | sctp_inpcb_free(inp, SCTP_FREE_SHOULD_USE_ABORT, |
2127 | 21 | SCTP_CALLED_FROM_INPKILL_TIMER); |
2128 | | #if defined(__APPLE__) && !defined(__Userspace__) |
2129 | | SCTP_SOCKET_UNLOCK(SCTP_INP_SO(inp), 1); |
2130 | | #endif |
2131 | 21 | inp = NULL; |
2132 | 21 | goto out_decr; |
2133 | 2.10k | case SCTP_TIMER_TYPE_ASOCKILL: |
2134 | 2.10k | KASSERT(inp != NULL && stcb != NULL && net == NULL, |
2135 | 2.10k | ("timeout of type %d: inp = %p, stcb = %p, net = %p", |
2136 | 2.10k | type, inp, stcb, net)); |
2137 | 2.10k | SCTP_STAT_INCR(sctps_timoassockill); |
2138 | | /* Can we free it yet? */ |
2139 | 2.10k | sctp_timer_stop(SCTP_TIMER_TYPE_ASOCKILL, inp, stcb, NULL, |
2140 | 2.10k | SCTP_FROM_SCTPUTIL + SCTP_LOC_1); |
2141 | | #if defined(__APPLE__) && !defined(__Userspace__) |
2142 | | so = SCTP_INP_SO(inp); |
2143 | | atomic_add_int(&stcb->asoc.refcnt, 1); |
2144 | | SCTP_TCB_UNLOCK(stcb); |
2145 | | SCTP_SOCKET_LOCK(so, 1); |
2146 | | SCTP_TCB_LOCK(stcb); |
2147 | | atomic_subtract_int(&stcb->asoc.refcnt, 1); |
2148 | | #endif |
2149 | 2.10k | (void)sctp_free_assoc(inp, stcb, SCTP_NORMAL_PROC, |
2150 | 2.10k | SCTP_FROM_SCTPUTIL + SCTP_LOC_2); |
2151 | | #if defined(__APPLE__) && !defined(__Userspace__) |
2152 | | SCTP_SOCKET_UNLOCK(so, 1); |
2153 | | #endif |
2154 | | /* |
2155 | | * free asoc, always unlocks (or destroy's) so prevent |
2156 | | * duplicate unlock or unlock of a free mtx :-0 |
2157 | | */ |
2158 | 2.10k | stcb = NULL; |
2159 | 2.10k | goto out_decr; |
2160 | 0 | case SCTP_TIMER_TYPE_ADDR_WQ: |
2161 | 0 | KASSERT(inp == NULL && stcb == NULL && net == NULL, |
2162 | 0 | ("timeout of type %d: inp = %p, stcb = %p, net = %p", |
2163 | 0 | type, inp, stcb, net)); |
2164 | 0 | sctp_handle_addr_wq(); |
2165 | 0 | did_output = true; |
2166 | 0 | break; |
2167 | 0 | case SCTP_TIMER_TYPE_PRIM_DELETED: |
2168 | 0 | KASSERT(inp != NULL && stcb != NULL && net == NULL, |
2169 | 0 | ("timeout of type %d: inp = %p, stcb = %p, net = %p", |
2170 | 0 | type, inp, stcb, net)); |
2171 | 0 | SCTP_STAT_INCR(sctps_timodelprim); |
2172 | 0 | sctp_delete_prim_timer(inp, stcb); |
2173 | 0 | did_output = false; |
2174 | 0 | break; |
2175 | 0 | default: |
2176 | 0 | #ifdef INVARIANTS |
2177 | 0 | panic("Unknown timer type %d", type); |
2178 | | #else |
2179 | | goto out; |
2180 | | #endif |
2181 | 2.12k | } |
2182 | | #ifdef SCTP_AUDITING_ENABLED |
2183 | | sctp_audit_log(0xF1, (uint8_t) type); |
2184 | | if (inp != NULL) |
2185 | | sctp_auditing(5, inp, stcb, net); |
2186 | | #endif |
2187 | 0 | if (did_output && (stcb != NULL)) { |
2188 | | /* |
2189 | | * Now we need to clean up the control chunk chain if an |
2190 | | * ECNE is on it. It must be marked as UNSENT again so next |
2191 | | * call will continue to send it until such time that we get |
2192 | | * a CWR, to remove it. It is, however, less likely that we |
2193 | | * will find a ecn echo on the chain though. |
2194 | | */ |
2195 | 0 | sctp_fix_ecn_echo(&stcb->asoc); |
2196 | 0 | } |
2197 | 21 | out: |
2198 | 21 | if (stcb != NULL) { |
2199 | 21 | SCTP_TCB_UNLOCK(stcb); |
2200 | 21 | } else if (inp != NULL) { |
2201 | 0 | SCTP_INP_WUNLOCK(inp); |
2202 | 0 | } else { |
2203 | 0 | SCTP_WQ_ADDR_UNLOCK(); |
2204 | 0 | } |
2205 | | |
2206 | 2.14k | out_decr: |
2207 | 2.14k | #if defined(__Userspace__) |
2208 | 2.14k | if (upcall_socket != NULL) { |
2209 | 0 | if ((upcall_socket->so_upcall != NULL) && |
2210 | 0 | (upcall_socket->so_error != 0)) { |
2211 | 0 | (*upcall_socket->so_upcall)(upcall_socket, upcall_socket->so_upcallarg, M_NOWAIT); |
2212 | 0 | } |
2213 | 0 | ACCEPT_LOCK(); |
2214 | 0 | SOCK_LOCK(upcall_socket); |
2215 | 0 | sorele(upcall_socket); |
2216 | 0 | } |
2217 | 2.14k | #endif |
2218 | | /* These reference counts were incremented in sctp_timer_start(). */ |
2219 | 2.14k | if (inp != NULL) { |
2220 | 2.12k | SCTP_INP_DECR_REF(inp); |
2221 | 2.12k | } |
2222 | 2.14k | if ((stcb != NULL) && !released_asoc_reference) { |
2223 | 0 | atomic_subtract_int(&stcb->asoc.refcnt, 1); |
2224 | 0 | } |
2225 | 2.14k | if (net != NULL) { |
2226 | 21 | sctp_free_remote_addr(net); |
2227 | 21 | } |
2228 | 2.14k | SCTPDBG(SCTP_DEBUG_TIMER2, "Timer type %d handler finished.\n", type); |
2229 | | #if defined(__FreeBSD__) && !defined(__Userspace__) |
2230 | | CURVNET_RESTORE(); |
2231 | | NET_EPOCH_EXIT(et); |
2232 | | #endif |
2233 | 2.14k | } |
2234 | | |
2235 | | /*- |
2236 | | * The following table shows which parameters must be provided |
2237 | | * when calling sctp_timer_start(). For parameters not being |
2238 | | * provided, NULL must be used. |
2239 | | * |
2240 | | * |Name |inp |stcb|net | |
2241 | | * |-----------------------------|----|----|----| |
2242 | | * |SCTP_TIMER_TYPE_SEND |Yes |Yes |Yes | |
2243 | | * |SCTP_TIMER_TYPE_INIT |Yes |Yes |Yes | |
2244 | | * |SCTP_TIMER_TYPE_RECV |Yes |Yes |No | |
2245 | | * |SCTP_TIMER_TYPE_SHUTDOWN |Yes |Yes |Yes | |
2246 | | * |SCTP_TIMER_TYPE_HEARTBEAT |Yes |Yes |Yes | |
2247 | | * |SCTP_TIMER_TYPE_COOKIE |Yes |Yes |Yes | |
2248 | | * |SCTP_TIMER_TYPE_NEWCOOKIE |Yes |No |No | |
2249 | | * |SCTP_TIMER_TYPE_PATHMTURAISE |Yes |Yes |Yes | |
2250 | | * |SCTP_TIMER_TYPE_SHUTDOWNACK |Yes |Yes |Yes | |
2251 | | * |SCTP_TIMER_TYPE_ASCONF |Yes |Yes |Yes | |
2252 | | * |SCTP_TIMER_TYPE_SHUTDOWNGUARD|Yes |Yes |No | |
2253 | | * |SCTP_TIMER_TYPE_AUTOCLOSE |Yes |Yes |No | |
2254 | | * |SCTP_TIMER_TYPE_STRRESET |Yes |Yes |Yes | |
2255 | | * |SCTP_TIMER_TYPE_INPKILL |Yes |No |No | |
2256 | | * |SCTP_TIMER_TYPE_ASOCKILL |Yes |Yes |No | |
2257 | | * |SCTP_TIMER_TYPE_ADDR_WQ |No |No |No | |
2258 | | * |SCTP_TIMER_TYPE_PRIM_DELETED |Yes |Yes |No | |
2259 | | * |
2260 | | */ |
2261 | | |
2262 | | void |
2263 | | sctp_timer_start(int t_type, struct sctp_inpcb *inp, struct sctp_tcb *stcb, |
2264 | | struct sctp_nets *net) |
2265 | 172k | { |
2266 | 172k | struct sctp_timer *tmr; |
2267 | 172k | uint32_t to_ticks; |
2268 | 172k | uint32_t rndval, jitter; |
2269 | | |
2270 | 172k | KASSERT(stcb == NULL || stcb->sctp_ep == inp, |
2271 | 172k | ("sctp_timer_start of type %d: inp = %p, stcb->sctp_ep %p", |
2272 | 172k | t_type, stcb, stcb->sctp_ep)); |
2273 | 172k | tmr = NULL; |
2274 | 172k | if (stcb != NULL) { |
2275 | 161k | SCTP_TCB_LOCK_ASSERT(stcb); |
2276 | 161k | } else if (inp != NULL) { |
2277 | 10.6k | SCTP_INP_WLOCK_ASSERT(inp); |
2278 | 10.6k | } else { |
2279 | 0 | SCTP_WQ_ADDR_LOCK_ASSERT(); |
2280 | 0 | } |
2281 | 172k | if (stcb != NULL) { |
2282 | | /* Don't restart timer on association that's about to be killed. */ |
2283 | 161k | if ((stcb->asoc.state & SCTP_STATE_ABOUT_TO_BE_FREED) && |
2284 | 161k | (t_type != SCTP_TIMER_TYPE_ASOCKILL)) { |
2285 | 0 | SCTPDBG(SCTP_DEBUG_TIMER2, |
2286 | 0 | "Timer type %d not started: inp=%p, stcb=%p, net=%p (stcb deleted).\n", |
2287 | 0 | t_type, inp, stcb, net); |
2288 | 0 | return; |
2289 | 0 | } |
2290 | | /* Don't restart timer on net that's been removed. */ |
2291 | 161k | if (net != NULL && (net->dest_state & SCTP_ADDR_BEING_DELETED)) { |
2292 | 0 | SCTPDBG(SCTP_DEBUG_TIMER2, |
2293 | 0 | "Timer type %d not started: inp=%p, stcb=%p, net=%p (net deleted).\n", |
2294 | 0 | t_type, inp, stcb, net); |
2295 | 0 | return; |
2296 | 0 | } |
2297 | 161k | } |
2298 | 172k | switch (t_type) { |
2299 | 8.55k | case SCTP_TIMER_TYPE_SEND: |
2300 | | /* Here we use the RTO timer. */ |
2301 | 8.55k | if ((inp == NULL) || (stcb == NULL) || (net == NULL)) { |
2302 | 0 | #ifdef INVARIANTS |
2303 | 0 | panic("sctp_timer_start of type %d: inp = %p, stcb = %p, net = %p", |
2304 | 0 | t_type, inp, stcb, net); |
2305 | | #else |
2306 | | return; |
2307 | | #endif |
2308 | 0 | } |
2309 | 8.55k | tmr = &net->rxt_timer; |
2310 | 8.55k | if (net->RTO == 0) { |
2311 | 139 | to_ticks = sctp_msecs_to_ticks(stcb->asoc.initial_rto); |
2312 | 8.41k | } else { |
2313 | 8.41k | to_ticks = sctp_msecs_to_ticks(net->RTO); |
2314 | 8.41k | } |
2315 | 8.55k | break; |
2316 | 26.1k | case SCTP_TIMER_TYPE_INIT: |
2317 | | /* |
2318 | | * Here we use the INIT timer default usually about 1 |
2319 | | * second. |
2320 | | */ |
2321 | 26.1k | if ((inp == NULL) || (stcb == NULL) || (net == NULL)) { |
2322 | 0 | #ifdef INVARIANTS |
2323 | 0 | panic("sctp_timer_start of type %d: inp = %p, stcb = %p, net = %p", |
2324 | 0 | t_type, inp, stcb, net); |
2325 | | #else |
2326 | | return; |
2327 | | #endif |
2328 | 0 | } |
2329 | 26.1k | tmr = &net->rxt_timer; |
2330 | 26.1k | if (net->RTO == 0) { |
2331 | 19.7k | to_ticks = sctp_msecs_to_ticks(stcb->asoc.initial_rto); |
2332 | 19.7k | } else { |
2333 | 6.42k | to_ticks = sctp_msecs_to_ticks(net->RTO); |
2334 | 6.42k | } |
2335 | 26.1k | break; |
2336 | 132 | case SCTP_TIMER_TYPE_RECV: |
2337 | | /* |
2338 | | * Here we use the Delayed-Ack timer value from the inp, |
2339 | | * usually about 200ms. |
2340 | | */ |
2341 | 132 | if ((inp == NULL) || (stcb == NULL) || (net != NULL)) { |
2342 | 0 | #ifdef INVARIANTS |
2343 | 0 | panic("sctp_timer_start of type %d: inp = %p, stcb = %p, net = %p", |
2344 | 0 | t_type, inp, stcb, net); |
2345 | | #else |
2346 | | return; |
2347 | | #endif |
2348 | 0 | } |
2349 | 132 | tmr = &stcb->asoc.dack_timer; |
2350 | 132 | to_ticks = sctp_msecs_to_ticks(stcb->asoc.delayed_ack); |
2351 | 132 | break; |
2352 | 0 | case SCTP_TIMER_TYPE_SHUTDOWN: |
2353 | | /* Here we use the RTO of the destination. */ |
2354 | 0 | if ((inp == NULL) || (stcb == NULL) || (net == NULL)) { |
2355 | 0 | #ifdef INVARIANTS |
2356 | 0 | panic("sctp_timer_start of type %d: inp = %p, stcb = %p, net = %p", |
2357 | 0 | t_type, inp, stcb, net); |
2358 | | #else |
2359 | | return; |
2360 | | #endif |
2361 | 0 | } |
2362 | 0 | tmr = &net->rxt_timer; |
2363 | 0 | if (net->RTO == 0) { |
2364 | 0 | to_ticks = sctp_msecs_to_ticks(stcb->asoc.initial_rto); |
2365 | 0 | } else { |
2366 | 0 | to_ticks = sctp_msecs_to_ticks(net->RTO); |
2367 | 0 | } |
2368 | 0 | break; |
2369 | 55.4k | case SCTP_TIMER_TYPE_HEARTBEAT: |
2370 | | /* |
2371 | | * The net is used here so that we can add in the RTO. Even |
2372 | | * though we use a different timer. We also add the HB timer |
2373 | | * PLUS a random jitter. |
2374 | | */ |
2375 | 55.4k | if ((inp == NULL) || (stcb == NULL) || (net == NULL)) { |
2376 | 0 | #ifdef INVARIANTS |
2377 | 0 | panic("sctp_timer_start of type %d: inp = %p, stcb = %p, net = %p", |
2378 | 0 | t_type, inp, stcb, net); |
2379 | | #else |
2380 | | return; |
2381 | | #endif |
2382 | 0 | } |
2383 | 55.4k | if ((net->dest_state & SCTP_ADDR_NOHB) && |
2384 | 55.4k | ((net->dest_state & SCTP_ADDR_UNCONFIRMED) == 0)) { |
2385 | 0 | SCTPDBG(SCTP_DEBUG_TIMER2, |
2386 | 0 | "Timer type %d not started: inp=%p, stcb=%p, net=%p.\n", |
2387 | 0 | t_type, inp, stcb, net); |
2388 | 0 | return; |
2389 | 0 | } |
2390 | 55.4k | tmr = &net->hb_timer; |
2391 | 55.4k | if (net->RTO == 0) { |
2392 | 44.4k | to_ticks = stcb->asoc.initial_rto; |
2393 | 44.4k | } else { |
2394 | 11.0k | to_ticks = net->RTO; |
2395 | 11.0k | } |
2396 | 55.4k | if (!((net->dest_state & SCTP_ADDR_UNCONFIRMED) && |
2397 | 55.4k | (net->dest_state & SCTP_ADDR_REACHABLE)) && |
2398 | 55.4k | ((net->dest_state & SCTP_ADDR_PF) == 0)) { |
2399 | 13.2k | if (to_ticks > 1) { |
2400 | 13.2k | rndval = sctp_select_initial_TSN(&inp->sctp_ep); |
2401 | 13.2k | jitter = rndval % to_ticks; |
2402 | 13.2k | to_ticks >>= 1; |
2403 | 13.2k | if (jitter < (UINT32_MAX - to_ticks)) { |
2404 | 13.2k | to_ticks += jitter; |
2405 | 13.2k | } else { |
2406 | 0 | to_ticks = UINT32_MAX; |
2407 | 0 | } |
2408 | 13.2k | } |
2409 | 13.2k | if (net->heart_beat_delay < (UINT32_MAX - to_ticks)) { |
2410 | 13.2k | to_ticks += net->heart_beat_delay; |
2411 | 13.2k | } else { |
2412 | 0 | to_ticks = UINT32_MAX; |
2413 | 0 | } |
2414 | 13.2k | } |
2415 | | /* |
2416 | | * Now we must convert the to_ticks that are now in |
2417 | | * ms to ticks. |
2418 | | */ |
2419 | 55.4k | to_ticks = sctp_msecs_to_ticks(to_ticks); |
2420 | 55.4k | break; |
2421 | 16.4k | case SCTP_TIMER_TYPE_COOKIE: |
2422 | | /* |
2423 | | * Here we can use the RTO timer from the network since one |
2424 | | * RTT was complete. If a retransmission happened then we will |
2425 | | * be using the RTO initial value. |
2426 | | */ |
2427 | 16.4k | if ((inp == NULL) || (stcb == NULL) || (net == NULL)) { |
2428 | 0 | #ifdef INVARIANTS |
2429 | 0 | panic("sctp_timer_start of type %d: inp = %p, stcb = %p, net = %p", |
2430 | 0 | t_type, inp, stcb, net); |
2431 | | #else |
2432 | | return; |
2433 | | #endif |
2434 | 0 | } |
2435 | 16.4k | tmr = &net->rxt_timer; |
2436 | 16.4k | if (net->RTO == 0) { |
2437 | 0 | to_ticks = sctp_msecs_to_ticks(stcb->asoc.initial_rto); |
2438 | 16.4k | } else { |
2439 | 16.4k | to_ticks = sctp_msecs_to_ticks(net->RTO); |
2440 | 16.4k | } |
2441 | 16.4k | break; |
2442 | 10.6k | case SCTP_TIMER_TYPE_NEWCOOKIE: |
2443 | | /* |
2444 | | * Nothing needed but the endpoint here usually about 60 |
2445 | | * minutes. |
2446 | | */ |
2447 | 10.6k | if ((inp == NULL) || (stcb != NULL) || (net != NULL)) { |
2448 | 0 | #ifdef INVARIANTS |
2449 | 0 | panic("sctp_timer_start of type %d: inp = %p, stcb = %p, net = %p", |
2450 | 0 | t_type, inp, stcb, net); |
2451 | | #else |
2452 | | return; |
2453 | | #endif |
2454 | 0 | } |
2455 | 10.6k | tmr = &inp->sctp_ep.signature_change; |
2456 | 10.6k | to_ticks = inp->sctp_ep.sctp_timeoutticks[SCTP_TIMER_SIGNATURE]; |
2457 | 10.6k | break; |
2458 | 49.9k | case SCTP_TIMER_TYPE_PATHMTURAISE: |
2459 | | /* |
2460 | | * Here we use the value found in the EP for PMTUD, usually |
2461 | | * about 10 minutes. |
2462 | | */ |
2463 | 49.9k | if ((inp == NULL) || (stcb == NULL) || (net == NULL)) { |
2464 | 0 | #ifdef INVARIANTS |
2465 | 0 | panic("sctp_timer_start of type %d: inp = %p, stcb = %p, net = %p", |
2466 | 0 | t_type, inp, stcb, net); |
2467 | | #else |
2468 | | return; |
2469 | | #endif |
2470 | 0 | } |
2471 | 49.9k | if (net->dest_state & SCTP_ADDR_NO_PMTUD) { |
2472 | 0 | SCTPDBG(SCTP_DEBUG_TIMER2, |
2473 | 0 | "Timer type %d not started: inp=%p, stcb=%p, net=%p.\n", |
2474 | 0 | t_type, inp, stcb, net); |
2475 | 0 | return; |
2476 | 0 | } |
2477 | 49.9k | tmr = &net->pmtu_timer; |
2478 | 49.9k | to_ticks = inp->sctp_ep.sctp_timeoutticks[SCTP_TIMER_PMTU]; |
2479 | 49.9k | break; |
2480 | 39 | case SCTP_TIMER_TYPE_SHUTDOWNACK: |
2481 | | /* Here we use the RTO of the destination. */ |
2482 | 39 | if ((inp == NULL) || (stcb == NULL) || (net == NULL)) { |
2483 | 0 | #ifdef INVARIANTS |
2484 | 0 | panic("sctp_timer_start of type %d: inp = %p, stcb = %p, net = %p", |
2485 | 0 | t_type, inp, stcb, net); |
2486 | | #else |
2487 | | return; |
2488 | | #endif |
2489 | 0 | } |
2490 | 39 | tmr = &net->rxt_timer; |
2491 | 39 | if (net->RTO == 0) { |
2492 | 0 | to_ticks = sctp_msecs_to_ticks(stcb->asoc.initial_rto); |
2493 | 39 | } else { |
2494 | 39 | to_ticks = sctp_msecs_to_ticks(net->RTO); |
2495 | 39 | } |
2496 | 39 | break; |
2497 | 0 | case SCTP_TIMER_TYPE_ASCONF: |
2498 | | /* |
2499 | | * Here the timer comes from the stcb but its value is from |
2500 | | * the net's RTO. |
2501 | | */ |
2502 | 0 | if ((inp == NULL) || (stcb == NULL) || (net == NULL)) { |
2503 | 0 | #ifdef INVARIANTS |
2504 | 0 | panic("sctp_timer_start of type %d: inp = %p, stcb = %p, net = %p", |
2505 | 0 | t_type, inp, stcb, net); |
2506 | | #else |
2507 | | return; |
2508 | | #endif |
2509 | 0 | } |
2510 | 0 | tmr = &stcb->asoc.asconf_timer; |
2511 | 0 | if (net->RTO == 0) { |
2512 | 0 | to_ticks = sctp_msecs_to_ticks(stcb->asoc.initial_rto); |
2513 | 0 | } else { |
2514 | 0 | to_ticks = sctp_msecs_to_ticks(net->RTO); |
2515 | 0 | } |
2516 | 0 | break; |
2517 | 0 | case SCTP_TIMER_TYPE_SHUTDOWNGUARD: |
2518 | | /* |
2519 | | * Here we use the endpoints shutdown guard timer usually |
2520 | | * about 3 minutes. |
2521 | | */ |
2522 | 0 | if ((inp == NULL) || (stcb == NULL) || (net != NULL)) { |
2523 | 0 | #ifdef INVARIANTS |
2524 | 0 | panic("sctp_timer_start of type %d: inp = %p, stcb = %p, net = %p", |
2525 | 0 | t_type, inp, stcb, net); |
2526 | | #else |
2527 | | return; |
2528 | | #endif |
2529 | 0 | } |
2530 | 0 | tmr = &stcb->asoc.shut_guard_timer; |
2531 | 0 | if (inp->sctp_ep.sctp_timeoutticks[SCTP_TIMER_MAXSHUTDOWN] == 0) { |
2532 | 0 | if (stcb->asoc.maxrto < UINT32_MAX / 5) { |
2533 | 0 | to_ticks = sctp_msecs_to_ticks(5 * stcb->asoc.maxrto); |
2534 | 0 | } else { |
2535 | 0 | to_ticks = sctp_msecs_to_ticks(UINT32_MAX); |
2536 | 0 | } |
2537 | 0 | } else { |
2538 | 0 | to_ticks = inp->sctp_ep.sctp_timeoutticks[SCTP_TIMER_MAXSHUTDOWN]; |
2539 | 0 | } |
2540 | 0 | break; |
2541 | 0 | case SCTP_TIMER_TYPE_AUTOCLOSE: |
2542 | 0 | if ((inp == NULL) || (stcb == NULL) || (net != NULL)) { |
2543 | 0 | #ifdef INVARIANTS |
2544 | 0 | panic("sctp_timer_start of type %d: inp = %p, stcb = %p, net = %p", |
2545 | 0 | t_type, inp, stcb, net); |
2546 | | #else |
2547 | | return; |
2548 | | #endif |
2549 | 0 | } |
2550 | 0 | tmr = &stcb->asoc.autoclose_timer; |
2551 | 0 | to_ticks = stcb->asoc.sctp_autoclose_ticks; |
2552 | 0 | break; |
2553 | 2.62k | case SCTP_TIMER_TYPE_STRRESET: |
2554 | | /* |
2555 | | * Here the timer comes from the stcb but its value is from |
2556 | | * the net's RTO. |
2557 | | */ |
2558 | 2.62k | if ((inp == NULL) || (stcb == NULL) || (net == NULL)) { |
2559 | 0 | #ifdef INVARIANTS |
2560 | 0 | panic("sctp_timer_start of type %d: inp = %p, stcb = %p, net = %p", |
2561 | 0 | t_type, inp, stcb, net); |
2562 | | #else |
2563 | | return; |
2564 | | #endif |
2565 | 0 | } |
2566 | 2.62k | tmr = &stcb->asoc.strreset_timer; |
2567 | 2.62k | if (net->RTO == 0) { |
2568 | 8 | to_ticks = sctp_msecs_to_ticks(stcb->asoc.initial_rto); |
2569 | 2.61k | } else { |
2570 | 2.61k | to_ticks = sctp_msecs_to_ticks(net->RTO); |
2571 | 2.61k | } |
2572 | 2.62k | break; |
2573 | 21 | case SCTP_TIMER_TYPE_INPKILL: |
2574 | | /* |
2575 | | * The inp is setup to die. We re-use the signature_change |
2576 | | * timer since that has stopped and we are in the GONE |
2577 | | * state. |
2578 | | */ |
2579 | 21 | if ((inp == NULL) || (stcb != NULL) || (net != NULL)) { |
2580 | 0 | #ifdef INVARIANTS |
2581 | 0 | panic("sctp_timer_start of type %d: inp = %p, stcb = %p, net = %p", |
2582 | 0 | t_type, inp, stcb, net); |
2583 | | #else |
2584 | | return; |
2585 | | #endif |
2586 | 0 | } |
2587 | 21 | tmr = &inp->sctp_ep.signature_change; |
2588 | 21 | to_ticks = sctp_msecs_to_ticks(SCTP_INP_KILL_TIMEOUT); |
2589 | 21 | break; |
2590 | 2.10k | case SCTP_TIMER_TYPE_ASOCKILL: |
2591 | 2.10k | if ((inp == NULL) || (stcb == NULL) || (net != NULL)) { |
2592 | 0 | #ifdef INVARIANTS |
2593 | 0 | panic("sctp_timer_start of type %d: inp = %p, stcb = %p, net = %p", |
2594 | 0 | t_type, inp, stcb, net); |
2595 | | #else |
2596 | | return; |
2597 | | #endif |
2598 | 0 | } |
2599 | 2.10k | tmr = &stcb->asoc.strreset_timer; |
2600 | 2.10k | to_ticks = sctp_msecs_to_ticks(SCTP_ASOC_KILL_TIMEOUT); |
2601 | 2.10k | break; |
2602 | 0 | case SCTP_TIMER_TYPE_ADDR_WQ: |
2603 | 0 | if ((inp != NULL) || (stcb != NULL) || (net != NULL)) { |
2604 | 0 | #ifdef INVARIANTS |
2605 | 0 | panic("sctp_timer_start of type %d: inp = %p, stcb = %p, net = %p", |
2606 | 0 | t_type, inp, stcb, net); |
2607 | | #else |
2608 | | return; |
2609 | | #endif |
2610 | 0 | } |
2611 | | /* Only 1 tick away :-) */ |
2612 | 0 | tmr = &SCTP_BASE_INFO(addr_wq_timer); |
2613 | 0 | to_ticks = SCTP_ADDRESS_TICK_DELAY; |
2614 | 0 | break; |
2615 | 0 | case SCTP_TIMER_TYPE_PRIM_DELETED: |
2616 | 0 | if ((inp == NULL) || (stcb == NULL) || (net != NULL)) { |
2617 | 0 | #ifdef INVARIANTS |
2618 | 0 | panic("sctp_timer_start of type %d: inp = %p, stcb = %p, net = %p", |
2619 | 0 | t_type, inp, stcb, net); |
2620 | | #else |
2621 | | return; |
2622 | | #endif |
2623 | 0 | } |
2624 | 0 | tmr = &stcb->asoc.delete_prim_timer; |
2625 | 0 | to_ticks = sctp_msecs_to_ticks(stcb->asoc.initial_rto); |
2626 | 0 | break; |
2627 | 0 | default: |
2628 | 0 | #ifdef INVARIANTS |
2629 | 0 | panic("Unknown timer type %d", t_type); |
2630 | | #else |
2631 | | return; |
2632 | | #endif |
2633 | 172k | } |
2634 | 172k | KASSERT(tmr != NULL, ("tmr is NULL for timer type %d", t_type)); |
2635 | 172k | KASSERT(to_ticks > 0, ("to_ticks == 0 for timer type %d", t_type)); |
2636 | 172k | if (SCTP_OS_TIMER_PENDING(&tmr->timer)) { |
2637 | | /* |
2638 | | * We do NOT allow you to have it already running. If it is, |
2639 | | * we leave the current one up unchanged. |
2640 | | */ |
2641 | 23.0k | SCTPDBG(SCTP_DEBUG_TIMER2, |
2642 | 23.0k | "Timer type %d already running: inp=%p, stcb=%p, net=%p.\n", |
2643 | 23.0k | t_type, inp, stcb, net); |
2644 | 23.0k | return; |
2645 | 23.0k | } |
2646 | | /* At this point we can proceed. */ |
2647 | 149k | if (t_type == SCTP_TIMER_TYPE_SEND) { |
2648 | 2.93k | stcb->asoc.num_send_timers_up++; |
2649 | 2.93k | } |
2650 | 149k | tmr->stopped_from = 0; |
2651 | 149k | tmr->type = t_type; |
2652 | 149k | tmr->ep = (void *)inp; |
2653 | 149k | tmr->tcb = (void *)stcb; |
2654 | 149k | if (t_type == SCTP_TIMER_TYPE_STRRESET) { |
2655 | 2.59k | tmr->net = NULL; |
2656 | 146k | } else { |
2657 | 146k | tmr->net = (void *)net; |
2658 | 146k | } |
2659 | 149k | tmr->self = (void *)tmr; |
2660 | | #if defined(__FreeBSD__) && !defined(__Userspace__) |
2661 | | tmr->vnet = (void *)curvnet; |
2662 | | #endif |
2663 | 149k | tmr->ticks = sctp_get_tick_count(); |
2664 | 149k | if (SCTP_OS_TIMER_START(&tmr->timer, to_ticks, sctp_timeout_handler, tmr) == 0) { |
2665 | 149k | SCTPDBG(SCTP_DEBUG_TIMER2, |
2666 | 149k | "Timer type %d started: ticks=%u, inp=%p, stcb=%p, net=%p.\n", |
2667 | 149k | t_type, to_ticks, inp, stcb, net); |
2668 | | /* |
2669 | | * If this is a newly scheduled callout, as opposed to a |
2670 | | * rescheduled one, increment relevant reference counts. |
2671 | | */ |
2672 | 149k | if (tmr->ep != NULL) { |
2673 | 149k | SCTP_INP_INCR_REF(inp); |
2674 | 149k | } |
2675 | 149k | if (tmr->tcb != NULL) { |
2676 | 138k | atomic_add_int(&stcb->asoc.refcnt, 1); |
2677 | 138k | } |
2678 | 149k | if (tmr->net != NULL) { |
2679 | 133k | atomic_add_int(&net->ref_count, 1); |
2680 | 133k | } |
2681 | 18.4E | } else { |
2682 | | /* |
2683 | | * This should not happen, since we checked for pending |
2684 | | * above. |
2685 | | */ |
2686 | 18.4E | SCTPDBG(SCTP_DEBUG_TIMER2, |
2687 | 18.4E | "Timer type %d restarted: ticks=%u, inp=%p, stcb=%p, net=%p.\n", |
2688 | 18.4E | t_type, to_ticks, inp, stcb, net); |
2689 | 18.4E | } |
2690 | 149k | return; |
2691 | 172k | } |
2692 | | |
2693 | | /*- |
2694 | | * The following table shows which parameters must be provided |
2695 | | * when calling sctp_timer_stop(). For parameters not being |
2696 | | * provided, NULL must be used. |
2697 | | * |
2698 | | * |Name |inp |stcb|net | |
2699 | | * |-----------------------------|----|----|----| |
2700 | | * |SCTP_TIMER_TYPE_SEND |Yes |Yes |Yes | |
2701 | | * |SCTP_TIMER_TYPE_INIT |Yes |Yes |Yes | |
2702 | | * |SCTP_TIMER_TYPE_RECV |Yes |Yes |No | |
2703 | | * |SCTP_TIMER_TYPE_SHUTDOWN |Yes |Yes |Yes | |
2704 | | * |SCTP_TIMER_TYPE_HEARTBEAT |Yes |Yes |Yes | |
2705 | | * |SCTP_TIMER_TYPE_COOKIE |Yes |Yes |Yes | |
2706 | | * |SCTP_TIMER_TYPE_NEWCOOKIE |Yes |No |No | |
2707 | | * |SCTP_TIMER_TYPE_PATHMTURAISE |Yes |Yes |Yes | |
2708 | | * |SCTP_TIMER_TYPE_SHUTDOWNACK |Yes |Yes |Yes | |
2709 | | * |SCTP_TIMER_TYPE_ASCONF |Yes |Yes |No | |
2710 | | * |SCTP_TIMER_TYPE_SHUTDOWNGUARD|Yes |Yes |No | |
2711 | | * |SCTP_TIMER_TYPE_AUTOCLOSE |Yes |Yes |No | |
2712 | | * |SCTP_TIMER_TYPE_STRRESET |Yes |Yes |No | |
2713 | | * |SCTP_TIMER_TYPE_INPKILL |Yes |No |No | |
2714 | | * |SCTP_TIMER_TYPE_ASOCKILL |Yes |Yes |No | |
2715 | | * |SCTP_TIMER_TYPE_ADDR_WQ |No |No |No | |
2716 | | * |SCTP_TIMER_TYPE_PRIM_DELETED |Yes |Yes |No | |
2717 | | * |
2718 | | */ |
2719 | | |
2720 | | void |
2721 | | sctp_timer_stop(int t_type, struct sctp_inpcb *inp, struct sctp_tcb *stcb, |
2722 | | struct sctp_nets *net, uint32_t from) |
2723 | 487k | { |
2724 | 487k | struct sctp_timer *tmr; |
2725 | | |
2726 | 487k | KASSERT(stcb == NULL || stcb->sctp_ep == inp, |
2727 | 487k | ("sctp_timer_stop of type %d: inp = %p, stcb->sctp_ep %p", |
2728 | 487k | t_type, stcb, stcb->sctp_ep)); |
2729 | 487k | if (stcb != NULL) { |
2730 | 477k | SCTP_TCB_LOCK_ASSERT(stcb); |
2731 | 477k | } else if (inp != NULL) { |
2732 | 10.6k | SCTP_INP_WLOCK_ASSERT(inp); |
2733 | 18.4E | } else { |
2734 | 18.4E | SCTP_WQ_ADDR_LOCK_ASSERT(); |
2735 | 18.4E | } |
2736 | 487k | tmr = NULL; |
2737 | 487k | switch (t_type) { |
2738 | 30.5k | case SCTP_TIMER_TYPE_SEND: |
2739 | 30.5k | if ((inp == NULL) || (stcb == NULL) || (net == NULL)) { |
2740 | 0 | #ifdef INVARIANTS |
2741 | 0 | panic("sctp_timer_stop of type %d: inp = %p, stcb = %p, net = %p", |
2742 | 0 | t_type, inp, stcb, net); |
2743 | | #else |
2744 | | return; |
2745 | | #endif |
2746 | 0 | } |
2747 | 30.5k | tmr = &net->rxt_timer; |
2748 | 30.5k | break; |
2749 | 59.9k | case SCTP_TIMER_TYPE_INIT: |
2750 | 59.9k | if ((inp == NULL) || (stcb == NULL) || (net == NULL)) { |
2751 | 0 | #ifdef INVARIANTS |
2752 | 0 | panic("sctp_timer_stop of type %d: inp = %p, stcb = %p, net = %p", |
2753 | 0 | t_type, inp, stcb, net); |
2754 | | #else |
2755 | | return; |
2756 | | #endif |
2757 | 0 | } |
2758 | 59.9k | tmr = &net->rxt_timer; |
2759 | 59.9k | break; |
2760 | 27.7k | case SCTP_TIMER_TYPE_RECV: |
2761 | 27.7k | if ((inp == NULL) || (stcb == NULL) || (net != NULL)) { |
2762 | 0 | #ifdef INVARIANTS |
2763 | 0 | panic("sctp_timer_stop of type %d: inp = %p, stcb = %p, net = %p", |
2764 | 0 | t_type, inp, stcb, net); |
2765 | | #else |
2766 | | return; |
2767 | | #endif |
2768 | 0 | } |
2769 | 27.7k | tmr = &stcb->asoc.dack_timer; |
2770 | 27.7k | break; |
2771 | 30.5k | case SCTP_TIMER_TYPE_SHUTDOWN: |
2772 | 30.5k | if ((inp == NULL) || (stcb == NULL) || (net == NULL)) { |
2773 | 0 | #ifdef INVARIANTS |
2774 | 0 | panic("sctp_timer_stop of type %d: inp = %p, stcb = %p, net = %p", |
2775 | 0 | t_type, inp, stcb, net); |
2776 | | #else |
2777 | | return; |
2778 | | #endif |
2779 | 0 | } |
2780 | 30.5k | tmr = &net->rxt_timer; |
2781 | 30.5k | break; |
2782 | 68.6k | case SCTP_TIMER_TYPE_HEARTBEAT: |
2783 | 68.6k | if ((inp == NULL) || (stcb == NULL) || (net == NULL)) { |
2784 | 0 | #ifdef INVARIANTS |
2785 | 0 | panic("sctp_timer_stop of type %d: inp = %p, stcb = %p, net = %p", |
2786 | 0 | t_type, inp, stcb, net); |
2787 | | #else |
2788 | | return; |
2789 | | #endif |
2790 | 0 | } |
2791 | 68.6k | tmr = &net->hb_timer; |
2792 | 68.6k | break; |
2793 | 41.0k | case SCTP_TIMER_TYPE_COOKIE: |
2794 | 41.0k | if ((inp == NULL) || (stcb == NULL) || (net == NULL)) { |
2795 | 0 | #ifdef INVARIANTS |
2796 | 0 | panic("sctp_timer_stop of type %d: inp = %p, stcb = %p, net = %p", |
2797 | 0 | t_type, inp, stcb, net); |
2798 | | #else |
2799 | | return; |
2800 | | #endif |
2801 | 0 | } |
2802 | 41.0k | tmr = &net->rxt_timer; |
2803 | 41.0k | break; |
2804 | 10.6k | case SCTP_TIMER_TYPE_NEWCOOKIE: |
2805 | 10.6k | if ((inp == NULL) || (stcb != NULL) || (net != NULL)) { |
2806 | 0 | #ifdef INVARIANTS |
2807 | 0 | panic("sctp_timer_stop of type %d: inp = %p, stcb = %p, net = %p", |
2808 | 0 | t_type, inp, stcb, net); |
2809 | | #else |
2810 | | return; |
2811 | | #endif |
2812 | 0 | } |
2813 | 10.6k | tmr = &inp->sctp_ep.signature_change; |
2814 | 10.6k | break; |
2815 | 68.6k | case SCTP_TIMER_TYPE_PATHMTURAISE: |
2816 | 68.6k | if ((inp == NULL) || (stcb == NULL) || (net == NULL)) { |
2817 | 0 | #ifdef INVARIANTS |
2818 | 0 | panic("sctp_timer_stop of type %d: inp = %p, stcb = %p, net = %p", |
2819 | 0 | t_type, inp, stcb, net); |
2820 | | #else |
2821 | | return; |
2822 | | #endif |
2823 | 0 | } |
2824 | 68.6k | tmr = &net->pmtu_timer; |
2825 | 68.6k | break; |
2826 | 30.5k | case SCTP_TIMER_TYPE_SHUTDOWNACK: |
2827 | 30.5k | if ((inp == NULL) || (stcb == NULL) || (net == NULL)) { |
2828 | 0 | #ifdef INVARIANTS |
2829 | 0 | panic("sctp_timer_stop of type %d: inp = %p, stcb = %p, net = %p", |
2830 | 0 | t_type, inp, stcb, net); |
2831 | | #else |
2832 | | return; |
2833 | | #endif |
2834 | 0 | } |
2835 | 30.5k | tmr = &net->rxt_timer; |
2836 | 30.5k | break; |
2837 | 21.5k | case SCTP_TIMER_TYPE_ASCONF: |
2838 | 21.5k | if ((inp == NULL) || (stcb == NULL) || (net != NULL)) { |
2839 | 0 | #ifdef INVARIANTS |
2840 | 0 | panic("sctp_timer_stop of type %d: inp = %p, stcb = %p, net = %p", |
2841 | 0 | t_type, inp, stcb, net); |
2842 | | #else |
2843 | | return; |
2844 | | #endif |
2845 | 0 | } |
2846 | 21.5k | tmr = &stcb->asoc.asconf_timer; |
2847 | 21.5k | break; |
2848 | 21.2k | case SCTP_TIMER_TYPE_SHUTDOWNGUARD: |
2849 | 21.2k | if ((inp == NULL) || (stcb == NULL) || (net != NULL)) { |
2850 | 0 | #ifdef INVARIANTS |
2851 | 0 | panic("sctp_timer_stop of type %d: inp = %p, stcb = %p, net = %p", |
2852 | 0 | t_type, inp, stcb, net); |
2853 | | #else |
2854 | | return; |
2855 | | #endif |
2856 | 0 | } |
2857 | 21.2k | tmr = &stcb->asoc.shut_guard_timer; |
2858 | 21.2k | break; |
2859 | 21.3k | case SCTP_TIMER_TYPE_AUTOCLOSE: |
2860 | 21.3k | if ((inp == NULL) || (stcb == NULL) || (net != NULL)) { |
2861 | 0 | #ifdef INVARIANTS |
2862 | 0 | panic("sctp_timer_stop of type %d: inp = %p, stcb = %p, net = %p", |
2863 | 0 | t_type, inp, stcb, net); |
2864 | | #else |
2865 | | return; |
2866 | | #endif |
2867 | 0 | } |
2868 | 21.3k | tmr = &stcb->asoc.autoclose_timer; |
2869 | 21.3k | break; |
2870 | 21.3k | case SCTP_TIMER_TYPE_STRRESET: |
2871 | 21.3k | if ((inp == NULL) || (stcb == NULL) || (net != NULL)) { |
2872 | 0 | #ifdef INVARIANTS |
2873 | 0 | panic("sctp_timer_stop of type %d: inp = %p, stcb = %p, net = %p", |
2874 | 0 | t_type, inp, stcb, net); |
2875 | | #else |
2876 | | return; |
2877 | | #endif |
2878 | 0 | } |
2879 | 21.3k | tmr = &stcb->asoc.strreset_timer; |
2880 | 21.3k | break; |
2881 | 21 | case SCTP_TIMER_TYPE_INPKILL: |
2882 | | /* |
2883 | | * The inp is setup to die. We re-use the signature_change |
2884 | | * timer since that has stopped and we are in the GONE |
2885 | | * state. |
2886 | | */ |
2887 | 21 | if ((inp == NULL) || (stcb != NULL) || (net != NULL)) { |
2888 | 0 | #ifdef INVARIANTS |
2889 | 0 | panic("sctp_timer_stop of type %d: inp = %p, stcb = %p, net = %p", |
2890 | 0 | t_type, inp, stcb, net); |
2891 | | #else |
2892 | | return; |
2893 | | #endif |
2894 | 0 | } |
2895 | 21 | tmr = &inp->sctp_ep.signature_change; |
2896 | 21 | break; |
2897 | 12.7k | case SCTP_TIMER_TYPE_ASOCKILL: |
2898 | 12.7k | if ((inp == NULL) || (stcb == NULL) || (net != NULL)) { |
2899 | 0 | #ifdef INVARIANTS |
2900 | 0 | panic("sctp_timer_stop of type %d: inp = %p, stcb = %p, net = %p", |
2901 | 0 | t_type, inp, stcb, net); |
2902 | | #else |
2903 | | return; |
2904 | | #endif |
2905 | 0 | } |
2906 | 12.7k | tmr = &stcb->asoc.strreset_timer; |
2907 | 12.7k | break; |
2908 | 0 | case SCTP_TIMER_TYPE_ADDR_WQ: |
2909 | 0 | if ((inp != NULL) || (stcb != NULL) || (net != NULL)) { |
2910 | 0 | #ifdef INVARIANTS |
2911 | 0 | panic("sctp_timer_stop of type %d: inp = %p, stcb = %p, net = %p", |
2912 | 0 | t_type, inp, stcb, net); |
2913 | | #else |
2914 | | return; |
2915 | | #endif |
2916 | 0 | } |
2917 | 0 | tmr = &SCTP_BASE_INFO(addr_wq_timer); |
2918 | 0 | break; |
2919 | 21.2k | case SCTP_TIMER_TYPE_PRIM_DELETED: |
2920 | 21.2k | if ((inp == NULL) || (stcb == NULL) || (net != NULL)) { |
2921 | 0 | #ifdef INVARIANTS |
2922 | 0 | panic("sctp_timer_stop of type %d: inp = %p, stcb = %p, net = %p", |
2923 | 0 | t_type, inp, stcb, net); |
2924 | | #else |
2925 | | return; |
2926 | | #endif |
2927 | 0 | } |
2928 | 21.2k | tmr = &stcb->asoc.delete_prim_timer; |
2929 | 21.2k | break; |
2930 | 0 | default: |
2931 | 0 | #ifdef INVARIANTS |
2932 | 0 | panic("Unknown timer type %d", t_type); |
2933 | | #else |
2934 | | return; |
2935 | | #endif |
2936 | 487k | } |
2937 | 487k | KASSERT(tmr != NULL, ("tmr is NULL for timer type %d", t_type)); |
2938 | 487k | if ((tmr->type != SCTP_TIMER_TYPE_NONE) && |
2939 | 487k | (tmr->type != t_type)) { |
2940 | | /* |
2941 | | * Ok we have a timer that is under joint use. Cookie timer |
2942 | | * per chance with the SEND timer. We therefore are NOT |
2943 | | * running the timer that the caller wants stopped. So just |
2944 | | * return. |
2945 | | */ |
2946 | 89.3k | SCTPDBG(SCTP_DEBUG_TIMER2, |
2947 | 89.3k | "Shared timer type %d not running: inp=%p, stcb=%p, net=%p.\n", |
2948 | 89.3k | t_type, inp, stcb, net); |
2949 | 89.3k | return; |
2950 | 89.3k | } |
2951 | 398k | if ((t_type == SCTP_TIMER_TYPE_SEND) && (stcb != NULL)) { |
2952 | 14.7k | stcb->asoc.num_send_timers_up--; |
2953 | 14.7k | if (stcb->asoc.num_send_timers_up < 0) { |
2954 | 11.8k | stcb->asoc.num_send_timers_up = 0; |
2955 | 11.8k | } |
2956 | 14.7k | } |
2957 | 398k | tmr->self = NULL; |
2958 | 398k | tmr->stopped_from = from; |
2959 | 398k | if (SCTP_OS_TIMER_STOP(&tmr->timer) == 1) { |
2960 | 146k | KASSERT(tmr->ep == inp, |
2961 | 146k | ("sctp_timer_stop of type %d: inp = %p, tmr->inp = %p", |
2962 | 146k | t_type, inp, tmr->ep)); |
2963 | 146k | KASSERT(tmr->tcb == stcb, |
2964 | 146k | ("sctp_timer_stop of type %d: stcb = %p, tmr->stcb = %p", |
2965 | 146k | t_type, stcb, tmr->tcb)); |
2966 | 146k | KASSERT(((t_type == SCTP_TIMER_TYPE_ASCONF) && (tmr->net != NULL)) || |
2967 | 146k | ((t_type != SCTP_TIMER_TYPE_ASCONF) && (tmr->net == net)), |
2968 | 146k | ("sctp_timer_stop of type %d: net = %p, tmr->net = %p", |
2969 | 146k | t_type, net, tmr->net)); |
2970 | 146k | SCTPDBG(SCTP_DEBUG_TIMER2, |
2971 | 146k | "Timer type %d stopped: inp=%p, stcb=%p, net=%p.\n", |
2972 | 146k | t_type, inp, stcb, net); |
2973 | | /* |
2974 | | * If the timer was actually stopped, decrement reference counts |
2975 | | * that were incremented in sctp_timer_start(). |
2976 | | */ |
2977 | 146k | if (tmr->ep != NULL) { |
2978 | 146k | tmr->ep = NULL; |
2979 | 146k | SCTP_INP_DECR_REF(inp); |
2980 | 146k | } |
2981 | 146k | if (tmr->tcb != NULL) { |
2982 | 136k | tmr->tcb = NULL; |
2983 | 136k | atomic_subtract_int(&stcb->asoc.refcnt, 1); |
2984 | 136k | } |
2985 | 146k | if (tmr->net != NULL) { |
2986 | 133k | struct sctp_nets *tmr_net; |
2987 | | |
2988 | | /* |
2989 | | * Can't use net, since it doesn't work for |
2990 | | * SCTP_TIMER_TYPE_ASCONF. |
2991 | | */ |
2992 | 133k | tmr_net = tmr->net; |
2993 | 133k | tmr->net = NULL; |
2994 | 133k | sctp_free_remote_addr(tmr_net); |
2995 | 133k | } |
2996 | 251k | } else { |
2997 | 251k | SCTPDBG(SCTP_DEBUG_TIMER2, |
2998 | 251k | "Timer type %d not stopped: inp=%p, stcb=%p, net=%p.\n", |
2999 | 251k | t_type, inp, stcb, net); |
3000 | 251k | } |
3001 | 398k | return; |
3002 | 398k | } |
3003 | | |
3004 | | uint32_t |
3005 | | sctp_calculate_len(struct mbuf *m) |
3006 | 58.6k | { |
3007 | 58.6k | struct mbuf *at; |
3008 | 58.6k | uint32_t tlen; |
3009 | | |
3010 | 58.6k | tlen = 0; |
3011 | 255k | for (at = m; at != NULL; at = SCTP_BUF_NEXT(at)) { |
3012 | 196k | tlen += SCTP_BUF_LEN(at); |
3013 | 196k | } |
3014 | 58.6k | return (tlen); |
3015 | 58.6k | } |
3016 | | |
3017 | | /* |
3018 | | * Given an association and starting time of the current RTT period, update |
3019 | | * RTO in number of msecs. net should point to the current network. |
3020 | | * Return 1, if an RTO update was performed, return 0 if no update was |
3021 | | * performed due to invalid starting point. |
3022 | | */ |
3023 | | |
3024 | | int |
3025 | | sctp_calculate_rto(struct sctp_tcb *stcb, |
3026 | | struct sctp_association *asoc, |
3027 | | struct sctp_nets *net, |
3028 | | struct timeval *old, |
3029 | | int rtt_from_sack) |
3030 | 16.5k | { |
3031 | 16.5k | struct timeval now; |
3032 | 16.5k | uint64_t rtt_us; /* RTT in us */ |
3033 | 16.5k | int32_t rtt; /* RTT in ms */ |
3034 | 16.5k | uint32_t new_rto; |
3035 | 16.5k | int first_measure = 0; |
3036 | | |
3037 | | /************************/ |
3038 | | /* 1. calculate new RTT */ |
3039 | | /************************/ |
3040 | | /* get the current time */ |
3041 | 16.5k | if (stcb->asoc.use_precise_time) { |
3042 | 0 | (void)SCTP_GETPTIME_TIMEVAL(&now); |
3043 | 16.5k | } else { |
3044 | 16.5k | (void)SCTP_GETTIME_TIMEVAL(&now); |
3045 | 16.5k | } |
3046 | 16.5k | if ((old->tv_sec > now.tv_sec) || |
3047 | 16.5k | ((old->tv_sec == now.tv_sec) && (old->tv_usec > now.tv_usec))) { |
3048 | | /* The starting point is in the future. */ |
3049 | 398 | return (0); |
3050 | 398 | } |
3051 | 16.1k | timevalsub(&now, old); |
3052 | 16.1k | rtt_us = (uint64_t)1000000 * (uint64_t)now.tv_sec + (uint64_t)now.tv_usec; |
3053 | 16.1k | if (rtt_us > SCTP_RTO_UPPER_BOUND * 1000) { |
3054 | | /* The RTT is larger than a sane value. */ |
3055 | 2.31k | return (0); |
3056 | 2.31k | } |
3057 | | /* store the current RTT in us */ |
3058 | 13.8k | net->rtt = rtt_us; |
3059 | | /* compute rtt in ms */ |
3060 | 13.8k | rtt = (int32_t)(net->rtt / 1000); |
3061 | 13.8k | if ((asoc->cc_functions.sctp_rtt_calculated) && (rtt_from_sack == SCTP_RTT_FROM_DATA)) { |
3062 | | /* Tell the CC module that a new update has just occurred from a sack */ |
3063 | 0 | (*asoc->cc_functions.sctp_rtt_calculated)(stcb, net, &now); |
3064 | 0 | } |
3065 | | /* Do we need to determine the lan? We do this only |
3066 | | * on sacks i.e. RTT being determined from data not |
3067 | | * non-data (HB/INIT->INITACK). |
3068 | | */ |
3069 | 13.8k | if ((rtt_from_sack == SCTP_RTT_FROM_DATA) && |
3070 | 13.8k | (net->lan_type == SCTP_LAN_UNKNOWN)) { |
3071 | 0 | if (net->rtt > SCTP_LOCAL_LAN_RTT) { |
3072 | 0 | net->lan_type = SCTP_LAN_INTERNET; |
3073 | 0 | } else { |
3074 | 0 | net->lan_type = SCTP_LAN_LOCAL; |
3075 | 0 | } |
3076 | 0 | } |
3077 | | |
3078 | | /***************************/ |
3079 | | /* 2. update RTTVAR & SRTT */ |
3080 | | /***************************/ |
3081 | | /*- |
3082 | | * Compute the scaled average lastsa and the |
3083 | | * scaled variance lastsv as described in van Jacobson |
3084 | | * Paper "Congestion Avoidance and Control", Annex A. |
3085 | | * |
3086 | | * (net->lastsa >> SCTP_RTT_SHIFT) is the srtt |
3087 | | * (net->lastsv >> SCTP_RTT_VAR_SHIFT) is the rttvar |
3088 | | */ |
3089 | 13.8k | if (net->RTO_measured) { |
3090 | 5.58k | rtt -= (net->lastsa >> SCTP_RTT_SHIFT); |
3091 | 5.58k | net->lastsa += rtt; |
3092 | 5.58k | if (rtt < 0) { |
3093 | 0 | rtt = -rtt; |
3094 | 0 | } |
3095 | 5.58k | rtt -= (net->lastsv >> SCTP_RTT_VAR_SHIFT); |
3096 | 5.58k | net->lastsv += rtt; |
3097 | 5.58k | if (SCTP_BASE_SYSCTL(sctp_logging_level) & SCTP_RTTVAR_LOGGING_ENABLE) { |
3098 | 0 | rto_logging(net, SCTP_LOG_RTTVAR); |
3099 | 0 | } |
3100 | 8.24k | } else { |
3101 | | /* First RTO measurement */ |
3102 | 8.24k | net->RTO_measured = 1; |
3103 | 8.24k | first_measure = 1; |
3104 | 8.24k | net->lastsa = rtt << SCTP_RTT_SHIFT; |
3105 | 8.24k | net->lastsv = (rtt / 2) << SCTP_RTT_VAR_SHIFT; |
3106 | 8.24k | if (SCTP_BASE_SYSCTL(sctp_logging_level) & SCTP_RTTVAR_LOGGING_ENABLE) { |
3107 | 0 | rto_logging(net, SCTP_LOG_INITIAL_RTT); |
3108 | 0 | } |
3109 | 8.24k | } |
3110 | 13.8k | if (net->lastsv == 0) { |
3111 | 8.24k | net->lastsv = SCTP_CLOCK_GRANULARITY; |
3112 | 8.24k | } |
3113 | 13.8k | new_rto = (net->lastsa >> SCTP_RTT_SHIFT) + net->lastsv; |
3114 | 13.8k | if ((new_rto > SCTP_SAT_NETWORK_MIN) && |
3115 | 13.8k | (stcb->asoc.sat_network_lockout == 0)) { |
3116 | 0 | stcb->asoc.sat_network = 1; |
3117 | 13.8k | } else if ((!first_measure) && stcb->asoc.sat_network) { |
3118 | 0 | stcb->asoc.sat_network = 0; |
3119 | 0 | stcb->asoc.sat_network_lockout = 1; |
3120 | 0 | } |
3121 | | /* bound it, per C6/C7 in Section 5.3.1 */ |
3122 | 13.8k | if (new_rto < stcb->asoc.minrto) { |
3123 | 13.8k | new_rto = stcb->asoc.minrto; |
3124 | 13.8k | } |
3125 | 13.8k | if (new_rto > stcb->asoc.maxrto) { |
3126 | 0 | new_rto = stcb->asoc.maxrto; |
3127 | 0 | } |
3128 | 13.8k | net->RTO = new_rto; |
3129 | 13.8k | return (1); |
3130 | 16.1k | } |
3131 | | |
3132 | | /* |
3133 | | * return a pointer to a contiguous piece of data from the given mbuf chain |
3134 | | * starting at 'off' for 'len' bytes. If the desired piece spans more than |
3135 | | * one mbuf, a copy is made at 'ptr'. caller must ensure that the buffer size |
3136 | | * is >= 'len' returns NULL if there there isn't 'len' bytes in the chain. |
3137 | | */ |
3138 | | caddr_t |
3139 | | sctp_m_getptr(struct mbuf *m, int off, int len, uint8_t * in_ptr) |
3140 | 2.28M | { |
3141 | 2.28M | uint32_t count; |
3142 | 2.28M | uint8_t *ptr; |
3143 | | |
3144 | 2.28M | ptr = in_ptr; |
3145 | 2.28M | if ((off < 0) || (len <= 0)) |
3146 | 0 | return (NULL); |
3147 | | |
3148 | | /* find the desired start location */ |
3149 | 13.9M | while ((m != NULL) && (off > 0)) { |
3150 | 13.8M | if (off < SCTP_BUF_LEN(m)) |
3151 | 2.27M | break; |
3152 | 11.6M | off -= SCTP_BUF_LEN(m); |
3153 | 11.6M | m = SCTP_BUF_NEXT(m); |
3154 | 11.6M | } |
3155 | 2.28M | if (m == NULL) |
3156 | 9.31k | return (NULL); |
3157 | | |
3158 | | /* is the current mbuf large enough (eg. contiguous)? */ |
3159 | 2.27M | if ((SCTP_BUF_LEN(m) - off) >= len) { |
3160 | 2.27M | return (mtod(m, caddr_t) + off); |
3161 | 2.27M | } else { |
3162 | | /* else, it spans more than one mbuf, so save a temp copy... */ |
3163 | 16.8k | while ((m != NULL) && (len > 0)) { |
3164 | 10.7k | count = min(SCTP_BUF_LEN(m) - off, len); |
3165 | 10.7k | memcpy(ptr, mtod(m, caddr_t) + off, count); |
3166 | 10.7k | len -= count; |
3167 | 10.7k | ptr += count; |
3168 | 10.7k | off = 0; |
3169 | 10.7k | m = SCTP_BUF_NEXT(m); |
3170 | 10.7k | } |
3171 | 6.08k | if ((m == NULL) && (len > 0)) |
3172 | 1.68k | return (NULL); |
3173 | 4.39k | else |
3174 | 4.39k | return ((caddr_t)in_ptr); |
3175 | 6.08k | } |
3176 | 2.27M | } |
3177 | | |
3178 | | struct sctp_paramhdr * |
3179 | | sctp_get_next_param(struct mbuf *m, |
3180 | | int offset, |
3181 | | struct sctp_paramhdr *pull, |
3182 | | int pull_limit) |
3183 | 377k | { |
3184 | | /* This just provides a typed signature to Peter's Pull routine */ |
3185 | 377k | return ((struct sctp_paramhdr *)sctp_m_getptr(m, offset, pull_limit, |
3186 | 377k | (uint8_t *) pull)); |
3187 | 377k | } |
3188 | | |
3189 | | struct mbuf * |
3190 | | sctp_add_pad_tombuf(struct mbuf *m, int padlen) |
3191 | 37.9k | { |
3192 | 37.9k | struct mbuf *m_last; |
3193 | 37.9k | caddr_t dp; |
3194 | | |
3195 | 37.9k | if (padlen > 3) { |
3196 | 0 | return (NULL); |
3197 | 0 | } |
3198 | 37.9k | if (padlen <= M_TRAILINGSPACE(m)) { |
3199 | | /* |
3200 | | * The easy way. We hope the majority of the time we hit |
3201 | | * here :) |
3202 | | */ |
3203 | 32.9k | m_last = m; |
3204 | 32.9k | } else { |
3205 | | /* Hard way we must grow the mbuf chain */ |
3206 | 5.01k | m_last = sctp_get_mbuf_for_msg(padlen, 0, M_NOWAIT, 1, MT_DATA); |
3207 | 5.01k | if (m_last == NULL) { |
3208 | 0 | return (NULL); |
3209 | 0 | } |
3210 | 5.01k | SCTP_BUF_LEN(m_last) = 0; |
3211 | 5.01k | SCTP_BUF_NEXT(m_last) = NULL; |
3212 | 5.01k | SCTP_BUF_NEXT(m) = m_last; |
3213 | 5.01k | } |
3214 | 37.9k | dp = mtod(m_last, caddr_t) + SCTP_BUF_LEN(m_last); |
3215 | 37.9k | SCTP_BUF_LEN(m_last) += padlen; |
3216 | 37.9k | memset(dp, 0, padlen); |
3217 | 37.9k | return (m_last); |
3218 | 37.9k | } |
3219 | | |
3220 | | struct mbuf * |
3221 | | sctp_pad_lastmbuf(struct mbuf *m, int padval, struct mbuf *last_mbuf) |
3222 | 6.98k | { |
3223 | | /* find the last mbuf in chain and pad it */ |
3224 | 6.98k | struct mbuf *m_at; |
3225 | | |
3226 | 6.98k | if (last_mbuf != NULL) { |
3227 | 5.09k | return (sctp_add_pad_tombuf(last_mbuf, padval)); |
3228 | 5.09k | } else { |
3229 | 2.01k | for (m_at = m; m_at; m_at = SCTP_BUF_NEXT(m_at)) { |
3230 | 2.01k | if (SCTP_BUF_NEXT(m_at) == NULL) { |
3231 | 1.88k | return (sctp_add_pad_tombuf(m_at, padval)); |
3232 | 1.88k | } |
3233 | 2.01k | } |
3234 | 1.88k | } |
3235 | 0 | return (NULL); |
3236 | 6.98k | } |
3237 | | |
3238 | | static void |
3239 | | sctp_notify_assoc_change(uint16_t state, struct sctp_tcb *stcb, |
3240 | | uint16_t error, struct sctp_abort_chunk *abort, |
3241 | | bool from_peer, bool timedout, int so_locked) |
3242 | 7.22k | { |
3243 | 7.22k | struct mbuf *m_notify; |
3244 | 7.22k | struct sctp_assoc_change *sac; |
3245 | 7.22k | struct sctp_queued_to_read *control; |
3246 | 7.22k | struct sctp_inpcb *inp; |
3247 | 7.22k | unsigned int notif_len; |
3248 | 7.22k | unsigned int i; |
3249 | 7.22k | uint16_t abort_len; |
3250 | | #if defined(__APPLE__) && !defined(__Userspace__) |
3251 | | struct socket *so; |
3252 | | #endif |
3253 | | |
3254 | 7.22k | KASSERT(abort == NULL || from_peer, |
3255 | 7.22k | ("sctp_notify_assoc_change: ABORT chunk provided for local termination")); |
3256 | 7.22k | KASSERT(!from_peer || !timedout, |
3257 | 7.22k | ("sctp_notify_assoc_change: timeouts can only be local")); |
3258 | 7.22k | KASSERT(stcb != NULL, ("stcb == NULL")); |
3259 | 7.22k | SCTP_TCB_LOCK_ASSERT(stcb); |
3260 | 7.22k | inp = stcb->sctp_ep; |
3261 | 7.22k | SCTP_INP_READ_LOCK_ASSERT(inp); |
3262 | | |
3263 | 7.22k | if (sctp_stcb_is_feature_on(inp, stcb, SCTP_PCB_FLAGS_RECVASSOCEVNT)) { |
3264 | 7.22k | notif_len = (unsigned int)sizeof(struct sctp_assoc_change); |
3265 | 7.22k | if (abort != NULL) { |
3266 | 59 | abort_len = ntohs(abort->ch.chunk_length); |
3267 | | /* |
3268 | | * Only SCTP_CHUNK_BUFFER_SIZE are guaranteed to be |
3269 | | * contiguous. |
3270 | | */ |
3271 | 59 | if (abort_len > SCTP_CHUNK_BUFFER_SIZE) { |
3272 | 1 | abort_len = SCTP_CHUNK_BUFFER_SIZE; |
3273 | 1 | } |
3274 | 7.16k | } else { |
3275 | 7.16k | abort_len = 0; |
3276 | 7.16k | } |
3277 | 7.22k | if ((state == SCTP_COMM_UP) || (state == SCTP_RESTART)) { |
3278 | 5.52k | notif_len += SCTP_ASSOC_SUPPORTS_MAX; |
3279 | 5.52k | } else if ((state == SCTP_COMM_LOST) || (state == SCTP_CANT_STR_ASSOC)) { |
3280 | 1.69k | notif_len += abort_len; |
3281 | 1.69k | } |
3282 | 7.22k | m_notify = sctp_get_mbuf_for_msg(notif_len, 0, M_NOWAIT, 1, MT_DATA); |
3283 | 7.22k | if (m_notify == NULL) { |
3284 | | /* Retry with smaller value. */ |
3285 | 0 | notif_len = (unsigned int)sizeof(struct sctp_assoc_change); |
3286 | 0 | m_notify = sctp_get_mbuf_for_msg(notif_len, 0, M_NOWAIT, 1, MT_DATA); |
3287 | 0 | if (m_notify == NULL) { |
3288 | 0 | goto set_error; |
3289 | 0 | } |
3290 | 0 | } |
3291 | 7.22k | SCTP_BUF_NEXT(m_notify) = NULL; |
3292 | 7.22k | sac = mtod(m_notify, struct sctp_assoc_change *); |
3293 | 7.22k | memset(sac, 0, notif_len); |
3294 | 7.22k | sac->sac_type = SCTP_ASSOC_CHANGE; |
3295 | 7.22k | sac->sac_flags = 0; |
3296 | 7.22k | sac->sac_length = sizeof(struct sctp_assoc_change); |
3297 | 7.22k | sac->sac_state = state; |
3298 | 7.22k | sac->sac_error = error; |
3299 | 7.22k | if (state == SCTP_CANT_STR_ASSOC) { |
3300 | 666 | sac->sac_outbound_streams = 0; |
3301 | 666 | sac->sac_inbound_streams = 0; |
3302 | 6.56k | } else { |
3303 | 6.56k | sac->sac_outbound_streams = stcb->asoc.streamoutcnt; |
3304 | 6.56k | sac->sac_inbound_streams = stcb->asoc.streamincnt; |
3305 | 6.56k | } |
3306 | 7.22k | sac->sac_assoc_id = sctp_get_associd(stcb); |
3307 | 7.22k | if (notif_len > sizeof(struct sctp_assoc_change)) { |
3308 | 5.58k | if ((state == SCTP_COMM_UP) || (state == SCTP_RESTART)) { |
3309 | 5.52k | i = 0; |
3310 | 5.52k | if (stcb->asoc.prsctp_supported == 1) { |
3311 | 5.52k | sac->sac_info[i++] = SCTP_ASSOC_SUPPORTS_PR; |
3312 | 5.52k | } |
3313 | 5.52k | if (stcb->asoc.auth_supported == 1) { |
3314 | 5.52k | sac->sac_info[i++] = SCTP_ASSOC_SUPPORTS_AUTH; |
3315 | 5.52k | } |
3316 | 5.52k | if (stcb->asoc.asconf_supported == 1) { |
3317 | 5.51k | sac->sac_info[i++] = SCTP_ASSOC_SUPPORTS_ASCONF; |
3318 | 5.51k | } |
3319 | 5.52k | if (stcb->asoc.idata_supported == 1) { |
3320 | 2.86k | sac->sac_info[i++] = SCTP_ASSOC_SUPPORTS_INTERLEAVING; |
3321 | 2.86k | } |
3322 | 5.52k | sac->sac_info[i++] = SCTP_ASSOC_SUPPORTS_MULTIBUF; |
3323 | 5.52k | if (stcb->asoc.reconfig_supported == 1) { |
3324 | 5.52k | sac->sac_info[i++] = SCTP_ASSOC_SUPPORTS_RE_CONFIG; |
3325 | 5.52k | } |
3326 | 5.52k | sac->sac_length += i; |
3327 | 5.52k | } else if ((state == SCTP_COMM_LOST) || (state == SCTP_CANT_STR_ASSOC)) { |
3328 | 59 | memcpy(sac->sac_info, abort, abort_len); |
3329 | 59 | sac->sac_length += abort_len; |
3330 | 59 | } |
3331 | 5.58k | } |
3332 | 7.22k | SCTP_BUF_LEN(m_notify) = sac->sac_length; |
3333 | 7.22k | control = sctp_build_readq_entry(stcb, stcb->asoc.primary_destination, |
3334 | 7.22k | 0, 0, stcb->asoc.context, 0, 0, 0, |
3335 | 7.22k | m_notify); |
3336 | 7.22k | if (control != NULL) { |
3337 | 7.22k | control->length = SCTP_BUF_LEN(m_notify); |
3338 | 7.22k | control->spec_flags = M_NOTIFICATION; |
3339 | | /* not that we need this */ |
3340 | 7.22k | control->tail_mbuf = m_notify; |
3341 | 7.22k | sctp_add_to_readq(inp, stcb, control, |
3342 | 7.22k | &stcb->sctp_socket->so_rcv, 1, |
3343 | 7.22k | SCTP_READ_LOCK_HELD, so_locked); |
3344 | 7.22k | } else { |
3345 | 0 | sctp_m_freem(m_notify); |
3346 | 0 | } |
3347 | 7.22k | } |
3348 | | /* |
3349 | | * For 1-to-1 style sockets, we send up and error when an ABORT |
3350 | | * comes in. |
3351 | | */ |
3352 | 7.22k | set_error: |
3353 | 7.22k | if (((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) || |
3354 | 7.22k | (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL)) && |
3355 | 7.22k | ((state == SCTP_COMM_LOST) || (state == SCTP_CANT_STR_ASSOC))) { |
3356 | 1.69k | SOCK_LOCK(stcb->sctp_socket); |
3357 | 1.69k | if (from_peer) { |
3358 | 59 | if (SCTP_GET_STATE(stcb) == SCTP_STATE_COOKIE_WAIT) { |
3359 | 27 | SCTP_LTRACE_ERR_RET(NULL, stcb, NULL, SCTP_FROM_SCTPUTIL, ECONNREFUSED); |
3360 | 27 | stcb->sctp_socket->so_error = ECONNREFUSED; |
3361 | 32 | } else { |
3362 | 32 | SCTP_LTRACE_ERR_RET(NULL, stcb, NULL, SCTP_FROM_SCTPUTIL, ECONNRESET); |
3363 | 32 | stcb->sctp_socket->so_error = ECONNRESET; |
3364 | 32 | } |
3365 | 1.64k | } else { |
3366 | 1.64k | if (timedout) { |
3367 | 0 | SCTP_LTRACE_ERR_RET(NULL, stcb, NULL, SCTP_FROM_SCTPUTIL, ETIMEDOUT); |
3368 | 0 | stcb->sctp_socket->so_error = ETIMEDOUT; |
3369 | 1.64k | } else { |
3370 | 1.64k | SCTP_LTRACE_ERR_RET(NULL, stcb, NULL, SCTP_FROM_SCTPUTIL, ECONNABORTED); |
3371 | 1.64k | stcb->sctp_socket->so_error = ECONNABORTED; |
3372 | 1.64k | } |
3373 | 1.64k | } |
3374 | 1.69k | SOCK_UNLOCK(stcb->sctp_socket); |
3375 | 1.69k | } |
3376 | | /* Wake ANY sleepers */ |
3377 | | #if defined(__APPLE__) && !defined(__Userspace__) |
3378 | | so = SCTP_INP_SO(inp); |
3379 | | if (!so_locked) { |
3380 | | atomic_add_int(&stcb->asoc.refcnt, 1); |
3381 | | SCTP_TCB_UNLOCK(stcb); |
3382 | | SCTP_SOCKET_LOCK(so, 1); |
3383 | | SCTP_TCB_LOCK(stcb); |
3384 | | atomic_subtract_int(&stcb->asoc.refcnt, 1); |
3385 | | if (stcb->asoc.state & SCTP_STATE_CLOSED_SOCKET) { |
3386 | | SCTP_SOCKET_UNLOCK(so, 1); |
3387 | | return; |
3388 | | } |
3389 | | } |
3390 | | #endif |
3391 | 7.22k | if (((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) || |
3392 | 7.22k | (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL)) && |
3393 | 7.22k | ((state == SCTP_COMM_LOST) || (state == SCTP_CANT_STR_ASSOC))) { |
3394 | 1.69k | socantrcvmore(stcb->sctp_socket); |
3395 | 1.69k | } |
3396 | 7.22k | sorwakeup(stcb->sctp_socket); |
3397 | 7.22k | sowwakeup(stcb->sctp_socket); |
3398 | | #if defined(__APPLE__) && !defined(__Userspace__) |
3399 | | if (!so_locked) { |
3400 | | SCTP_SOCKET_UNLOCK(so, 1); |
3401 | | } |
3402 | | #endif |
3403 | 7.22k | } |
3404 | | |
3405 | | static void |
3406 | | sctp_notify_peer_addr_change(struct sctp_tcb *stcb, uint32_t state, |
3407 | | struct sockaddr *sa, uint32_t error, int so_locked) |
3408 | 89.1k | { |
3409 | 89.1k | struct mbuf *m_notify; |
3410 | 89.1k | struct sctp_paddr_change *spc; |
3411 | 89.1k | struct sctp_queued_to_read *control; |
3412 | | |
3413 | 89.1k | KASSERT(stcb != NULL, ("stcb == NULL")); |
3414 | 89.1k | SCTP_TCB_LOCK_ASSERT(stcb); |
3415 | 89.1k | SCTP_INP_READ_LOCK_ASSERT(stcb->sctp_ep); |
3416 | | |
3417 | 89.1k | if (sctp_stcb_is_feature_off(stcb->sctp_ep, stcb, SCTP_PCB_FLAGS_RECVPADDREVNT)) { |
3418 | | /* event not enabled */ |
3419 | 0 | return; |
3420 | 0 | } |
3421 | | |
3422 | 89.1k | m_notify = sctp_get_mbuf_for_msg(sizeof(struct sctp_paddr_change), 0, M_NOWAIT, 1, MT_DATA); |
3423 | 89.1k | if (m_notify == NULL) |
3424 | 0 | return; |
3425 | 89.1k | SCTP_BUF_LEN(m_notify) = 0; |
3426 | 89.1k | spc = mtod(m_notify, struct sctp_paddr_change *); |
3427 | 89.1k | memset(spc, 0, sizeof(struct sctp_paddr_change)); |
3428 | 89.1k | spc->spc_type = SCTP_PEER_ADDR_CHANGE; |
3429 | 89.1k | spc->spc_flags = 0; |
3430 | 89.1k | spc->spc_length = sizeof(struct sctp_paddr_change); |
3431 | 89.1k | switch (sa->sa_family) { |
3432 | 0 | #ifdef INET |
3433 | 81.7k | case AF_INET: |
3434 | 81.7k | #ifdef INET6 |
3435 | 81.7k | if (sctp_is_feature_on(stcb->sctp_ep, SCTP_PCB_FLAGS_NEEDS_MAPPED_V4)) { |
3436 | 0 | in6_sin_2_v4mapsin6((struct sockaddr_in *)sa, |
3437 | 0 | (struct sockaddr_in6 *)&spc->spc_aaddr); |
3438 | 81.7k | } else { |
3439 | 81.7k | memcpy(&spc->spc_aaddr, sa, sizeof(struct sockaddr_in)); |
3440 | 81.7k | } |
3441 | | #else |
3442 | | memcpy(&spc->spc_aaddr, sa, sizeof(struct sockaddr_in)); |
3443 | | #endif |
3444 | 81.7k | break; |
3445 | 0 | #endif |
3446 | 0 | #ifdef INET6 |
3447 | 6.83k | case AF_INET6: |
3448 | 6.83k | { |
3449 | | #ifdef SCTP_EMBEDDED_V6_SCOPE |
3450 | | struct sockaddr_in6 *sin6; |
3451 | | #endif /* SCTP_EMBEDDED_V6_SCOPE */ |
3452 | 6.83k | memcpy(&spc->spc_aaddr, sa, sizeof(struct sockaddr_in6)); |
3453 | | |
3454 | | #ifdef SCTP_EMBEDDED_V6_SCOPE |
3455 | | sin6 = (struct sockaddr_in6 *)&spc->spc_aaddr; |
3456 | | if (IN6_IS_SCOPE_LINKLOCAL(&sin6->sin6_addr)) { |
3457 | | if (sin6->sin6_scope_id == 0) { |
3458 | | /* recover scope_id for user */ |
3459 | | #ifdef SCTP_KAME |
3460 | | (void)sa6_recoverscope(sin6); |
3461 | | #else |
3462 | | (void)in6_recoverscope(sin6, &sin6->sin6_addr, |
3463 | | NULL); |
3464 | | #endif |
3465 | | } else { |
3466 | | /* clear embedded scope_id for user */ |
3467 | | in6_clearscope(&sin6->sin6_addr); |
3468 | | } |
3469 | | } |
3470 | | #endif /* SCTP_EMBEDDED_V6_SCOPE */ |
3471 | 6.83k | break; |
3472 | 0 | } |
3473 | 0 | #endif |
3474 | 0 | #if defined(__Userspace__) |
3475 | 626 | case AF_CONN: |
3476 | 626 | memcpy(&spc->spc_aaddr, sa, sizeof(struct sockaddr_conn)); |
3477 | 626 | break; |
3478 | 0 | #endif |
3479 | 0 | default: |
3480 | | /* TSNH */ |
3481 | 0 | break; |
3482 | 89.1k | } |
3483 | 89.1k | spc->spc_state = state; |
3484 | 89.1k | spc->spc_error = error; |
3485 | 89.1k | spc->spc_assoc_id = sctp_get_associd(stcb); |
3486 | | |
3487 | 89.1k | SCTP_BUF_LEN(m_notify) = sizeof(struct sctp_paddr_change); |
3488 | 89.1k | SCTP_BUF_NEXT(m_notify) = NULL; |
3489 | | |
3490 | | /* append to socket */ |
3491 | 89.1k | control = sctp_build_readq_entry(stcb, stcb->asoc.primary_destination, |
3492 | 89.1k | 0, 0, stcb->asoc.context, 0, 0, 0, |
3493 | 89.1k | m_notify); |
3494 | 89.1k | if (control == NULL) { |
3495 | | /* no memory */ |
3496 | 0 | sctp_m_freem(m_notify); |
3497 | 0 | return; |
3498 | 0 | } |
3499 | 89.1k | control->length = SCTP_BUF_LEN(m_notify); |
3500 | 89.1k | control->spec_flags = M_NOTIFICATION; |
3501 | | /* not that we need this */ |
3502 | 89.1k | control->tail_mbuf = m_notify; |
3503 | 89.1k | sctp_add_to_readq(stcb->sctp_ep, stcb, control, |
3504 | 89.1k | &stcb->sctp_socket->so_rcv, 1, |
3505 | 89.1k | SCTP_READ_LOCK_HELD, so_locked); |
3506 | 89.1k | } |
3507 | | |
3508 | | static void |
3509 | | sctp_notify_send_failed(struct sctp_tcb *stcb, uint8_t sent, uint32_t error, |
3510 | | struct sctp_tmit_chunk *chk, int so_locked) |
3511 | 542 | { |
3512 | 542 | struct mbuf *m_notify; |
3513 | 542 | struct sctp_send_failed *ssf; |
3514 | 542 | struct sctp_send_failed_event *ssfe; |
3515 | 542 | struct sctp_queued_to_read *control; |
3516 | 542 | struct sctp_chunkhdr *chkhdr; |
3517 | 542 | int notifhdr_len, chk_len, chkhdr_len, padding_len, payload_len; |
3518 | | |
3519 | 542 | KASSERT(stcb != NULL, ("stcb == NULL")); |
3520 | 542 | SCTP_TCB_LOCK_ASSERT(stcb); |
3521 | 542 | SCTP_INP_READ_LOCK_ASSERT(stcb->sctp_ep); |
3522 | | |
3523 | 542 | if (sctp_stcb_is_feature_off(stcb->sctp_ep, stcb, SCTP_PCB_FLAGS_RECVSENDFAILEVNT) && |
3524 | 542 | sctp_stcb_is_feature_off(stcb->sctp_ep, stcb, SCTP_PCB_FLAGS_RECVNSENDFAILEVNT)) { |
3525 | | /* event not enabled */ |
3526 | 0 | return; |
3527 | 0 | } |
3528 | | |
3529 | 542 | if (sctp_stcb_is_feature_on(stcb->sctp_ep, stcb, SCTP_PCB_FLAGS_RECVNSENDFAILEVNT)) { |
3530 | 542 | notifhdr_len = sizeof(struct sctp_send_failed_event); |
3531 | 542 | } else { |
3532 | 0 | notifhdr_len = sizeof(struct sctp_send_failed); |
3533 | 0 | } |
3534 | 542 | m_notify = sctp_get_mbuf_for_msg(notifhdr_len, 0, M_NOWAIT, 1, MT_DATA); |
3535 | 542 | if (m_notify == NULL) |
3536 | | /* no space left */ |
3537 | 0 | return; |
3538 | 542 | SCTP_BUF_LEN(m_notify) = notifhdr_len; |
3539 | 542 | if (stcb->asoc.idata_supported) { |
3540 | 426 | chkhdr_len = sizeof(struct sctp_idata_chunk); |
3541 | 426 | } else { |
3542 | 116 | chkhdr_len = sizeof(struct sctp_data_chunk); |
3543 | 116 | } |
3544 | | /* Use some defaults in case we can't access the chunk header */ |
3545 | 542 | if (chk->send_size >= chkhdr_len) { |
3546 | 542 | payload_len = chk->send_size - chkhdr_len; |
3547 | 542 | } else { |
3548 | 0 | payload_len = 0; |
3549 | 0 | } |
3550 | 542 | padding_len = 0; |
3551 | 542 | if (chk->data != NULL) { |
3552 | 542 | chkhdr = mtod(chk->data, struct sctp_chunkhdr *); |
3553 | 542 | if (chkhdr != NULL) { |
3554 | 542 | chk_len = ntohs(chkhdr->chunk_length); |
3555 | 542 | if ((chk_len >= chkhdr_len) && |
3556 | 542 | (chk->send_size >= chk_len) && |
3557 | 542 | (chk->send_size - chk_len < 4)) { |
3558 | 542 | padding_len = chk->send_size - chk_len; |
3559 | 542 | payload_len = chk->send_size - chkhdr_len - padding_len; |
3560 | 542 | } |
3561 | 542 | } |
3562 | 542 | } |
3563 | 542 | if (sctp_stcb_is_feature_on(stcb->sctp_ep, stcb, SCTP_PCB_FLAGS_RECVNSENDFAILEVNT)) { |
3564 | 542 | ssfe = mtod(m_notify, struct sctp_send_failed_event *); |
3565 | 542 | memset(ssfe, 0, notifhdr_len); |
3566 | 542 | ssfe->ssfe_type = SCTP_SEND_FAILED_EVENT; |
3567 | 542 | if (sent) { |
3568 | 513 | ssfe->ssfe_flags = SCTP_DATA_SENT; |
3569 | 513 | } else { |
3570 | 29 | ssfe->ssfe_flags = SCTP_DATA_UNSENT; |
3571 | 29 | } |
3572 | 542 | ssfe->ssfe_length = (uint32_t)(notifhdr_len + payload_len); |
3573 | 542 | ssfe->ssfe_error = error; |
3574 | | /* not exactly what the user sent in, but should be close :) */ |
3575 | 542 | ssfe->ssfe_info.snd_sid = chk->rec.data.sid; |
3576 | 542 | ssfe->ssfe_info.snd_flags = chk->rec.data.rcv_flags; |
3577 | 542 | ssfe->ssfe_info.snd_ppid = chk->rec.data.ppid; |
3578 | 542 | ssfe->ssfe_info.snd_context = chk->rec.data.context; |
3579 | 542 | ssfe->ssfe_info.snd_assoc_id = sctp_get_associd(stcb); |
3580 | 542 | ssfe->ssfe_assoc_id = sctp_get_associd(stcb); |
3581 | 542 | } else { |
3582 | 0 | ssf = mtod(m_notify, struct sctp_send_failed *); |
3583 | 0 | memset(ssf, 0, notifhdr_len); |
3584 | 0 | ssf->ssf_type = SCTP_SEND_FAILED; |
3585 | 0 | if (sent) { |
3586 | 0 | ssf->ssf_flags = SCTP_DATA_SENT; |
3587 | 0 | } else { |
3588 | 0 | ssf->ssf_flags = SCTP_DATA_UNSENT; |
3589 | 0 | } |
3590 | 0 | ssf->ssf_length = (uint32_t)(notifhdr_len + payload_len); |
3591 | 0 | ssf->ssf_error = error; |
3592 | | /* not exactly what the user sent in, but should be close :) */ |
3593 | 0 | ssf->ssf_info.sinfo_stream = chk->rec.data.sid; |
3594 | 0 | ssf->ssf_info.sinfo_ssn = (uint16_t)chk->rec.data.mid; |
3595 | 0 | ssf->ssf_info.sinfo_flags = chk->rec.data.rcv_flags; |
3596 | 0 | ssf->ssf_info.sinfo_ppid = chk->rec.data.ppid; |
3597 | 0 | ssf->ssf_info.sinfo_context = chk->rec.data.context; |
3598 | 0 | ssf->ssf_info.sinfo_assoc_id = sctp_get_associd(stcb); |
3599 | 0 | ssf->ssf_assoc_id = sctp_get_associd(stcb); |
3600 | 0 | } |
3601 | 542 | if (chk->data != NULL) { |
3602 | | /* Trim off the sctp chunk header (it should be there) */ |
3603 | 542 | if (chk->send_size == chkhdr_len + payload_len + padding_len) { |
3604 | 542 | m_adj(chk->data, chkhdr_len); |
3605 | 542 | m_adj(chk->data, -padding_len); |
3606 | 542 | sctp_mbuf_crush(chk->data); |
3607 | 542 | chk->send_size -= (chkhdr_len + padding_len); |
3608 | 542 | } |
3609 | 542 | } |
3610 | 542 | SCTP_BUF_NEXT(m_notify) = chk->data; |
3611 | | /* Steal off the mbuf */ |
3612 | 542 | chk->data = NULL; |
3613 | | /* |
3614 | | * For this case, we check the actual socket buffer, since the assoc |
3615 | | * is going away we don't want to overfill the socket buffer for a |
3616 | | * non-reader |
3617 | | */ |
3618 | 542 | if (sctp_sbspace_failedmsgs(&stcb->sctp_socket->so_rcv) < SCTP_BUF_LEN(m_notify)) { |
3619 | 8 | sctp_m_freem(m_notify); |
3620 | 8 | return; |
3621 | 8 | } |
3622 | | /* append to socket */ |
3623 | 534 | control = sctp_build_readq_entry(stcb, stcb->asoc.primary_destination, |
3624 | 534 | 0, 0, stcb->asoc.context, 0, 0, 0, |
3625 | 534 | m_notify); |
3626 | 534 | if (control == NULL) { |
3627 | | /* no memory */ |
3628 | 0 | sctp_m_freem(m_notify); |
3629 | 0 | return; |
3630 | 0 | } |
3631 | 534 | control->length = SCTP_BUF_LEN(m_notify); |
3632 | 534 | control->spec_flags = M_NOTIFICATION; |
3633 | | /* not that we need this */ |
3634 | 534 | control->tail_mbuf = m_notify; |
3635 | 534 | sctp_add_to_readq(stcb->sctp_ep, stcb, control, |
3636 | 534 | &stcb->sctp_socket->so_rcv, 1, |
3637 | 534 | SCTP_READ_LOCK_HELD, so_locked); |
3638 | 534 | } |
3639 | | |
3640 | | static void |
3641 | | sctp_notify_send_failed2(struct sctp_tcb *stcb, uint32_t error, |
3642 | | struct sctp_stream_queue_pending *sp, int so_locked) |
3643 | 534 | { |
3644 | 534 | struct mbuf *m_notify; |
3645 | 534 | struct sctp_send_failed *ssf; |
3646 | 534 | struct sctp_send_failed_event *ssfe; |
3647 | 534 | struct sctp_queued_to_read *control; |
3648 | 534 | int notifhdr_len; |
3649 | | |
3650 | 534 | KASSERT(stcb != NULL, ("stcb == NULL")); |
3651 | 534 | SCTP_TCB_LOCK_ASSERT(stcb); |
3652 | 534 | SCTP_INP_READ_LOCK_ASSERT(stcb->sctp_ep); |
3653 | | |
3654 | 534 | if (sctp_stcb_is_feature_off(stcb->sctp_ep, stcb, SCTP_PCB_FLAGS_RECVSENDFAILEVNT) && |
3655 | 534 | sctp_stcb_is_feature_off(stcb->sctp_ep, stcb, SCTP_PCB_FLAGS_RECVNSENDFAILEVNT)) { |
3656 | | /* event not enabled */ |
3657 | 0 | return; |
3658 | 0 | } |
3659 | | |
3660 | 534 | if (sctp_stcb_is_feature_on(stcb->sctp_ep, stcb, SCTP_PCB_FLAGS_RECVNSENDFAILEVNT)) { |
3661 | 534 | notifhdr_len = sizeof(struct sctp_send_failed_event); |
3662 | 534 | } else { |
3663 | 0 | notifhdr_len = sizeof(struct sctp_send_failed); |
3664 | 0 | } |
3665 | 534 | m_notify = sctp_get_mbuf_for_msg(notifhdr_len, 0, M_NOWAIT, 1, MT_DATA); |
3666 | 534 | if (m_notify == NULL) { |
3667 | | /* no space left */ |
3668 | 0 | return; |
3669 | 0 | } |
3670 | 534 | SCTP_BUF_LEN(m_notify) = notifhdr_len; |
3671 | 534 | if (sctp_stcb_is_feature_on(stcb->sctp_ep, stcb, SCTP_PCB_FLAGS_RECVNSENDFAILEVNT)) { |
3672 | 534 | ssfe = mtod(m_notify, struct sctp_send_failed_event *); |
3673 | 534 | memset(ssfe, 0, notifhdr_len); |
3674 | 534 | ssfe->ssfe_type = SCTP_SEND_FAILED_EVENT; |
3675 | 534 | ssfe->ssfe_flags = SCTP_DATA_UNSENT; |
3676 | 534 | ssfe->ssfe_length = (uint32_t)(notifhdr_len + sp->length); |
3677 | 534 | ssfe->ssfe_error = error; |
3678 | | /* not exactly what the user sent in, but should be close :) */ |
3679 | 534 | ssfe->ssfe_info.snd_sid = sp->sid; |
3680 | 534 | if (sp->some_taken) { |
3681 | 0 | ssfe->ssfe_info.snd_flags = SCTP_DATA_LAST_FRAG; |
3682 | 534 | } else { |
3683 | 534 | ssfe->ssfe_info.snd_flags = SCTP_DATA_NOT_FRAG; |
3684 | 534 | } |
3685 | 534 | ssfe->ssfe_info.snd_ppid = sp->ppid; |
3686 | 534 | ssfe->ssfe_info.snd_context = sp->context; |
3687 | 534 | ssfe->ssfe_info.snd_assoc_id = sctp_get_associd(stcb); |
3688 | 534 | ssfe->ssfe_assoc_id = sctp_get_associd(stcb); |
3689 | 534 | } else { |
3690 | 0 | ssf = mtod(m_notify, struct sctp_send_failed *); |
3691 | 0 | memset(ssf, 0, notifhdr_len); |
3692 | 0 | ssf->ssf_type = SCTP_SEND_FAILED; |
3693 | 0 | ssf->ssf_flags = SCTP_DATA_UNSENT; |
3694 | 0 | ssf->ssf_length = (uint32_t)(notifhdr_len + sp->length); |
3695 | 0 | ssf->ssf_error = error; |
3696 | | /* not exactly what the user sent in, but should be close :) */ |
3697 | 0 | ssf->ssf_info.sinfo_stream = sp->sid; |
3698 | 0 | ssf->ssf_info.sinfo_ssn = 0; |
3699 | 0 | if (sp->some_taken) { |
3700 | 0 | ssf->ssf_info.sinfo_flags = SCTP_DATA_LAST_FRAG; |
3701 | 0 | } else { |
3702 | 0 | ssf->ssf_info.sinfo_flags = SCTP_DATA_NOT_FRAG; |
3703 | 0 | } |
3704 | 0 | ssf->ssf_info.sinfo_ppid = sp->ppid; |
3705 | 0 | ssf->ssf_info.sinfo_context = sp->context; |
3706 | 0 | ssf->ssf_info.sinfo_assoc_id = sctp_get_associd(stcb); |
3707 | 0 | ssf->ssf_assoc_id = sctp_get_associd(stcb); |
3708 | 0 | } |
3709 | 534 | SCTP_BUF_NEXT(m_notify) = sp->data; |
3710 | | |
3711 | | /* Steal off the mbuf */ |
3712 | 534 | sp->data = NULL; |
3713 | | /* |
3714 | | * For this case, we check the actual socket buffer, since the assoc |
3715 | | * is going away we don't want to overfill the socket buffer for a |
3716 | | * non-reader |
3717 | | */ |
3718 | 534 | if (sctp_sbspace_failedmsgs(&stcb->sctp_socket->so_rcv) < SCTP_BUF_LEN(m_notify)) { |
3719 | 8 | sctp_m_freem(m_notify); |
3720 | 8 | return; |
3721 | 8 | } |
3722 | | /* append to socket */ |
3723 | 526 | control = sctp_build_readq_entry(stcb, stcb->asoc.primary_destination, |
3724 | 526 | 0, 0, stcb->asoc.context, 0, 0, 0, |
3725 | 526 | m_notify); |
3726 | 526 | if (control == NULL) { |
3727 | | /* no memory */ |
3728 | 0 | sctp_m_freem(m_notify); |
3729 | 0 | return; |
3730 | 0 | } |
3731 | 526 | control->length = SCTP_BUF_LEN(m_notify); |
3732 | 526 | control->spec_flags = M_NOTIFICATION; |
3733 | | /* not that we need this */ |
3734 | 526 | control->tail_mbuf = m_notify; |
3735 | 526 | sctp_add_to_readq(stcb->sctp_ep, stcb, control, |
3736 | 526 | &stcb->sctp_socket->so_rcv, 1, |
3737 | 526 | SCTP_READ_LOCK_HELD, so_locked); |
3738 | 526 | } |
3739 | | |
3740 | | static void |
3741 | | sctp_notify_adaptation_layer(struct sctp_tcb *stcb, int so_locked) |
3742 | 5.52k | { |
3743 | 5.52k | struct mbuf *m_notify; |
3744 | 5.52k | struct sctp_adaptation_event *sai; |
3745 | 5.52k | struct sctp_queued_to_read *control; |
3746 | | |
3747 | 5.52k | KASSERT(stcb != NULL, ("stcb == NULL")); |
3748 | 5.52k | SCTP_TCB_LOCK_ASSERT(stcb); |
3749 | 5.52k | SCTP_INP_READ_LOCK_ASSERT(stcb->sctp_ep); |
3750 | | |
3751 | 5.52k | if (sctp_stcb_is_feature_off(stcb->sctp_ep, stcb, SCTP_PCB_FLAGS_ADAPTATIONEVNT)) { |
3752 | | /* event not enabled */ |
3753 | 0 | return; |
3754 | 0 | } |
3755 | | |
3756 | 5.52k | m_notify = sctp_get_mbuf_for_msg(sizeof(struct sctp_adaption_event), 0, M_NOWAIT, 1, MT_DATA); |
3757 | 5.52k | if (m_notify == NULL) |
3758 | | /* no space left */ |
3759 | 0 | return; |
3760 | 5.52k | SCTP_BUF_LEN(m_notify) = 0; |
3761 | 5.52k | sai = mtod(m_notify, struct sctp_adaptation_event *); |
3762 | 5.52k | memset(sai, 0, sizeof(struct sctp_adaptation_event)); |
3763 | 5.52k | sai->sai_type = SCTP_ADAPTATION_INDICATION; |
3764 | 5.52k | sai->sai_flags = 0; |
3765 | 5.52k | sai->sai_length = sizeof(struct sctp_adaptation_event); |
3766 | 5.52k | sai->sai_adaptation_ind = stcb->asoc.peers_adaptation; |
3767 | 5.52k | sai->sai_assoc_id = sctp_get_associd(stcb); |
3768 | | |
3769 | 5.52k | SCTP_BUF_LEN(m_notify) = sizeof(struct sctp_adaptation_event); |
3770 | 5.52k | SCTP_BUF_NEXT(m_notify) = NULL; |
3771 | | |
3772 | | /* append to socket */ |
3773 | 5.52k | control = sctp_build_readq_entry(stcb, stcb->asoc.primary_destination, |
3774 | 5.52k | 0, 0, stcb->asoc.context, 0, 0, 0, |
3775 | 5.52k | m_notify); |
3776 | 5.52k | if (control == NULL) { |
3777 | | /* no memory */ |
3778 | 0 | sctp_m_freem(m_notify); |
3779 | 0 | return; |
3780 | 0 | } |
3781 | 5.52k | control->length = SCTP_BUF_LEN(m_notify); |
3782 | 5.52k | control->spec_flags = M_NOTIFICATION; |
3783 | | /* not that we need this */ |
3784 | 5.52k | control->tail_mbuf = m_notify; |
3785 | 5.52k | sctp_add_to_readq(stcb->sctp_ep, stcb, control, |
3786 | 5.52k | &stcb->sctp_socket->so_rcv, 1, |
3787 | 5.52k | SCTP_READ_LOCK_HELD, so_locked); |
3788 | 5.52k | } |
3789 | | |
3790 | | static void |
3791 | | sctp_notify_partial_delivery_indication(struct sctp_tcb *stcb, uint32_t error, |
3792 | | struct sctp_queued_to_read *aborted_control, |
3793 | | int so_locked) |
3794 | 1.26k | { |
3795 | 1.26k | struct mbuf *m_notify; |
3796 | 1.26k | struct sctp_pdapi_event *pdapi; |
3797 | 1.26k | struct sctp_queued_to_read *control; |
3798 | 1.26k | struct sockbuf *sb; |
3799 | | |
3800 | 1.26k | KASSERT(aborted_control != NULL, ("aborted_control is NULL")); |
3801 | 1.26k | KASSERT(stcb != NULL, ("stcb == NULL")); |
3802 | 1.26k | SCTP_TCB_LOCK_ASSERT(stcb); |
3803 | 1.26k | SCTP_INP_READ_LOCK_ASSERT(stcb->sctp_ep); |
3804 | | |
3805 | 1.26k | if (sctp_stcb_is_feature_off(stcb->sctp_ep, stcb, SCTP_PCB_FLAGS_PDAPIEVNT)) { |
3806 | | /* event not enabled */ |
3807 | 0 | return; |
3808 | 0 | } |
3809 | | |
3810 | 1.26k | m_notify = sctp_get_mbuf_for_msg(sizeof(struct sctp_pdapi_event), 0, M_NOWAIT, 1, MT_DATA); |
3811 | 1.26k | if (m_notify == NULL) |
3812 | | /* no space left */ |
3813 | 0 | return; |
3814 | 1.26k | SCTP_BUF_LEN(m_notify) = 0; |
3815 | 1.26k | pdapi = mtod(m_notify, struct sctp_pdapi_event *); |
3816 | 1.26k | memset(pdapi, 0, sizeof(struct sctp_pdapi_event)); |
3817 | 1.26k | pdapi->pdapi_type = SCTP_PARTIAL_DELIVERY_EVENT; |
3818 | 1.26k | pdapi->pdapi_flags = 0; |
3819 | 1.26k | pdapi->pdapi_length = sizeof(struct sctp_pdapi_event); |
3820 | 1.26k | pdapi->pdapi_indication = error; |
3821 | 1.26k | pdapi->pdapi_stream = aborted_control->sinfo_stream; |
3822 | 1.26k | pdapi->pdapi_seq = (uint16_t)aborted_control->mid; |
3823 | 1.26k | pdapi->pdapi_assoc_id = sctp_get_associd(stcb); |
3824 | | |
3825 | 1.26k | SCTP_BUF_LEN(m_notify) = sizeof(struct sctp_pdapi_event); |
3826 | 1.26k | SCTP_BUF_NEXT(m_notify) = NULL; |
3827 | 1.26k | control = sctp_build_readq_entry(stcb, stcb->asoc.primary_destination, |
3828 | 1.26k | 0, 0, stcb->asoc.context, 0, 0, 0, |
3829 | 1.26k | m_notify); |
3830 | 1.26k | if (control == NULL) { |
3831 | | /* no memory */ |
3832 | 0 | sctp_m_freem(m_notify); |
3833 | 0 | return; |
3834 | 0 | } |
3835 | 1.26k | control->length = SCTP_BUF_LEN(m_notify); |
3836 | 1.26k | control->spec_flags = M_NOTIFICATION; |
3837 | | /* not that we need this */ |
3838 | 1.26k | control->tail_mbuf = m_notify; |
3839 | 1.26k | sb = &stcb->sctp_socket->so_rcv; |
3840 | 1.26k | if (SCTP_BASE_SYSCTL(sctp_logging_level) & SCTP_SB_LOGGING_ENABLE) { |
3841 | 0 | sctp_sblog(sb, control->do_not_ref_stcb?NULL:stcb, SCTP_LOG_SBALLOC, SCTP_BUF_LEN(m_notify)); |
3842 | 0 | } |
3843 | 1.26k | sctp_sballoc(stcb, sb, m_notify); |
3844 | 1.26k | if (SCTP_BASE_SYSCTL(sctp_logging_level) & SCTP_SB_LOGGING_ENABLE) { |
3845 | 0 | sctp_sblog(sb, control->do_not_ref_stcb?NULL:stcb, SCTP_LOG_SBRESULT, 0); |
3846 | 0 | } |
3847 | 1.26k | control->end_added = 1; |
3848 | 1.26k | TAILQ_INSERT_AFTER(&stcb->sctp_ep->read_queue, aborted_control, control, next); |
3849 | 1.26k | if (stcb->sctp_ep && stcb->sctp_socket) { |
3850 | | /* This should always be the case */ |
3851 | | #if defined(__APPLE__) && !defined(__Userspace__) |
3852 | | struct socket *so; |
3853 | | |
3854 | | so = SCTP_INP_SO(stcb->sctp_ep); |
3855 | | if (!so_locked) { |
3856 | | atomic_add_int(&stcb->asoc.refcnt, 1); |
3857 | | SCTP_TCB_UNLOCK(stcb); |
3858 | | SCTP_SOCKET_LOCK(so, 1); |
3859 | | SCTP_TCB_LOCK(stcb); |
3860 | | atomic_subtract_int(&stcb->asoc.refcnt, 1); |
3861 | | if (stcb->sctp_ep->sctp_flags & SCTP_PCB_FLAGS_SOCKET_GONE) { |
3862 | | SCTP_SOCKET_UNLOCK(so, 1); |
3863 | | return; |
3864 | | } |
3865 | | } |
3866 | | #endif |
3867 | 1.26k | sctp_sorwakeup(stcb->sctp_ep, stcb->sctp_socket); |
3868 | | #if defined(__APPLE__) && !defined(__Userspace__) |
3869 | | if (!so_locked) { |
3870 | | SCTP_SOCKET_UNLOCK(so, 1); |
3871 | | } |
3872 | | #endif |
3873 | 1.26k | } |
3874 | 1.26k | } |
3875 | | |
3876 | | static void |
3877 | | sctp_notify_shutdown_event(struct sctp_tcb *stcb, int so_locked) |
3878 | 92 | { |
3879 | 92 | struct mbuf *m_notify; |
3880 | 92 | struct sctp_shutdown_event *sse; |
3881 | 92 | struct sctp_queued_to_read *control; |
3882 | | |
3883 | 92 | KASSERT(stcb != NULL, ("stcb == NULL")); |
3884 | 92 | SCTP_TCB_LOCK_ASSERT(stcb); |
3885 | 92 | SCTP_INP_READ_LOCK_ASSERT(stcb->sctp_ep); |
3886 | | |
3887 | | /* |
3888 | | * For TCP model AND UDP connected sockets we will send an error up |
3889 | | * when an SHUTDOWN completes |
3890 | | */ |
3891 | 92 | if ((stcb->sctp_ep->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) || |
3892 | 92 | (stcb->sctp_ep->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL)) { |
3893 | | /* mark socket closed for read/write and wakeup! */ |
3894 | | #if defined(__APPLE__) && !defined(__Userspace__) |
3895 | | struct socket *so; |
3896 | | |
3897 | | so = SCTP_INP_SO(stcb->sctp_ep); |
3898 | | atomic_add_int(&stcb->asoc.refcnt, 1); |
3899 | | SCTP_TCB_UNLOCK(stcb); |
3900 | | SCTP_SOCKET_LOCK(so, 1); |
3901 | | SCTP_TCB_LOCK(stcb); |
3902 | | atomic_subtract_int(&stcb->asoc.refcnt, 1); |
3903 | | if (stcb->asoc.state & SCTP_STATE_CLOSED_SOCKET) { |
3904 | | SCTP_SOCKET_UNLOCK(so, 1); |
3905 | | return; |
3906 | | } |
3907 | | #endif |
3908 | 92 | socantsendmore(stcb->sctp_socket); |
3909 | | #if defined(__APPLE__) && !defined(__Userspace__) |
3910 | | SCTP_SOCKET_UNLOCK(so, 1); |
3911 | | #endif |
3912 | 92 | } |
3913 | | |
3914 | 92 | if (sctp_stcb_is_feature_off(stcb->sctp_ep, stcb, SCTP_PCB_FLAGS_RECVSHUTDOWNEVNT)) { |
3915 | | /* event not enabled */ |
3916 | 0 | return; |
3917 | 0 | } |
3918 | | |
3919 | 92 | m_notify = sctp_get_mbuf_for_msg(sizeof(struct sctp_shutdown_event), 0, M_NOWAIT, 1, MT_DATA); |
3920 | 92 | if (m_notify == NULL) |
3921 | | /* no space left */ |
3922 | 0 | return; |
3923 | 92 | sse = mtod(m_notify, struct sctp_shutdown_event *); |
3924 | 92 | memset(sse, 0, sizeof(struct sctp_shutdown_event)); |
3925 | 92 | sse->sse_type = SCTP_SHUTDOWN_EVENT; |
3926 | 92 | sse->sse_flags = 0; |
3927 | 92 | sse->sse_length = sizeof(struct sctp_shutdown_event); |
3928 | 92 | sse->sse_assoc_id = sctp_get_associd(stcb); |
3929 | | |
3930 | 92 | SCTP_BUF_LEN(m_notify) = sizeof(struct sctp_shutdown_event); |
3931 | 92 | SCTP_BUF_NEXT(m_notify) = NULL; |
3932 | | |
3933 | | /* append to socket */ |
3934 | 92 | control = sctp_build_readq_entry(stcb, stcb->asoc.primary_destination, |
3935 | 92 | 0, 0, stcb->asoc.context, 0, 0, 0, |
3936 | 92 | m_notify); |
3937 | 92 | if (control == NULL) { |
3938 | | /* no memory */ |
3939 | 0 | sctp_m_freem(m_notify); |
3940 | 0 | return; |
3941 | 0 | } |
3942 | 92 | control->length = SCTP_BUF_LEN(m_notify); |
3943 | 92 | control->spec_flags = M_NOTIFICATION; |
3944 | | /* not that we need this */ |
3945 | 92 | control->tail_mbuf = m_notify; |
3946 | 92 | sctp_add_to_readq(stcb->sctp_ep, stcb, control, |
3947 | 92 | &stcb->sctp_socket->so_rcv, 1, |
3948 | 92 | SCTP_READ_LOCK_HELD, so_locked); |
3949 | 92 | } |
3950 | | |
3951 | | static void |
3952 | | sctp_notify_sender_dry_event(struct sctp_tcb *stcb, int so_locked) |
3953 | 470 | { |
3954 | 470 | struct mbuf *m_notify; |
3955 | 470 | struct sctp_sender_dry_event *event; |
3956 | 470 | struct sctp_queued_to_read *control; |
3957 | | |
3958 | 470 | KASSERT(stcb != NULL, ("stcb == NULL")); |
3959 | 470 | SCTP_TCB_LOCK_ASSERT(stcb); |
3960 | 470 | SCTP_INP_READ_LOCK_ASSERT(stcb->sctp_ep); |
3961 | | |
3962 | 470 | if (sctp_stcb_is_feature_off(stcb->sctp_ep, stcb, SCTP_PCB_FLAGS_DRYEVNT)) { |
3963 | | /* event not enabled */ |
3964 | 0 | return; |
3965 | 0 | } |
3966 | | |
3967 | 470 | m_notify = sctp_get_mbuf_for_msg(sizeof(struct sctp_sender_dry_event), 0, M_NOWAIT, 1, MT_DATA); |
3968 | 470 | if (m_notify == NULL) { |
3969 | | /* no space left */ |
3970 | 0 | return; |
3971 | 0 | } |
3972 | 470 | SCTP_BUF_LEN(m_notify) = 0; |
3973 | 470 | event = mtod(m_notify, struct sctp_sender_dry_event *); |
3974 | 470 | memset(event, 0, sizeof(struct sctp_sender_dry_event)); |
3975 | 470 | event->sender_dry_type = SCTP_SENDER_DRY_EVENT; |
3976 | 470 | event->sender_dry_flags = 0; |
3977 | 470 | event->sender_dry_length = sizeof(struct sctp_sender_dry_event); |
3978 | 470 | event->sender_dry_assoc_id = sctp_get_associd(stcb); |
3979 | | |
3980 | 470 | SCTP_BUF_LEN(m_notify) = sizeof(struct sctp_sender_dry_event); |
3981 | 470 | SCTP_BUF_NEXT(m_notify) = NULL; |
3982 | | |
3983 | | /* append to socket */ |
3984 | 470 | control = sctp_build_readq_entry(stcb, stcb->asoc.primary_destination, |
3985 | 470 | 0, 0, stcb->asoc.context, 0, 0, 0, |
3986 | 470 | m_notify); |
3987 | 470 | if (control == NULL) { |
3988 | | /* no memory */ |
3989 | 0 | sctp_m_freem(m_notify); |
3990 | 0 | return; |
3991 | 0 | } |
3992 | 470 | control->length = SCTP_BUF_LEN(m_notify); |
3993 | 470 | control->spec_flags = M_NOTIFICATION; |
3994 | | /* not that we need this */ |
3995 | 470 | control->tail_mbuf = m_notify; |
3996 | 470 | sctp_add_to_readq(stcb->sctp_ep, stcb, control, |
3997 | 470 | &stcb->sctp_socket->so_rcv, 1, |
3998 | 470 | SCTP_READ_LOCK_HELD, so_locked); |
3999 | 470 | } |
4000 | | |
4001 | | static void |
4002 | | sctp_notify_stream_reset_add(struct sctp_tcb *stcb, int flag, int so_locked) |
4003 | 27 | { |
4004 | 27 | struct mbuf *m_notify; |
4005 | 27 | struct sctp_queued_to_read *control; |
4006 | 27 | struct sctp_stream_change_event *stradd; |
4007 | | |
4008 | 27 | KASSERT(stcb != NULL, ("stcb == NULL")); |
4009 | 27 | SCTP_TCB_LOCK_ASSERT(stcb); |
4010 | 27 | SCTP_INP_READ_LOCK_ASSERT(stcb->sctp_ep); |
4011 | | |
4012 | 27 | if (sctp_stcb_is_feature_off(stcb->sctp_ep, stcb, SCTP_PCB_FLAGS_STREAM_CHANGEEVNT)) { |
4013 | | /* event not enabled */ |
4014 | 0 | return; |
4015 | 0 | } |
4016 | | |
4017 | 27 | if ((stcb->asoc.peer_req_out) && flag) { |
4018 | | /* Peer made the request, don't tell the local user */ |
4019 | 0 | stcb->asoc.peer_req_out = 0; |
4020 | 0 | return; |
4021 | 0 | } |
4022 | 27 | stcb->asoc.peer_req_out = 0; |
4023 | 27 | m_notify = sctp_get_mbuf_for_msg(sizeof(struct sctp_stream_change_event), 0, M_NOWAIT, 1, MT_DATA); |
4024 | 27 | if (m_notify == NULL) |
4025 | | /* no space left */ |
4026 | 0 | return; |
4027 | 27 | SCTP_BUF_LEN(m_notify) = 0; |
4028 | 27 | stradd = mtod(m_notify, struct sctp_stream_change_event *); |
4029 | 27 | memset(stradd, 0, sizeof(struct sctp_stream_change_event)); |
4030 | 27 | stradd->strchange_type = SCTP_STREAM_CHANGE_EVENT; |
4031 | 27 | stradd->strchange_flags = flag; |
4032 | 27 | stradd->strchange_length = sizeof(struct sctp_stream_change_event); |
4033 | 27 | stradd->strchange_assoc_id = sctp_get_associd(stcb); |
4034 | 27 | stradd->strchange_instrms = stcb->asoc.streamincnt; |
4035 | 27 | stradd->strchange_outstrms = stcb->asoc.streamoutcnt; |
4036 | 27 | SCTP_BUF_LEN(m_notify) = sizeof(struct sctp_stream_change_event); |
4037 | 27 | SCTP_BUF_NEXT(m_notify) = NULL; |
4038 | 27 | if (sctp_sbspace(&stcb->asoc, &stcb->sctp_socket->so_rcv) < SCTP_BUF_LEN(m_notify)) { |
4039 | | /* no space */ |
4040 | 5 | sctp_m_freem(m_notify); |
4041 | 5 | return; |
4042 | 5 | } |
4043 | | /* append to socket */ |
4044 | 22 | control = sctp_build_readq_entry(stcb, stcb->asoc.primary_destination, |
4045 | 22 | 0, 0, stcb->asoc.context, 0, 0, 0, |
4046 | 22 | m_notify); |
4047 | 22 | if (control == NULL) { |
4048 | | /* no memory */ |
4049 | 0 | sctp_m_freem(m_notify); |
4050 | 0 | return; |
4051 | 0 | } |
4052 | 22 | control->length = SCTP_BUF_LEN(m_notify); |
4053 | 22 | control->spec_flags = M_NOTIFICATION; |
4054 | | /* not that we need this */ |
4055 | 22 | control->tail_mbuf = m_notify; |
4056 | 22 | sctp_add_to_readq(stcb->sctp_ep, stcb, control, |
4057 | 22 | &stcb->sctp_socket->so_rcv, 1, |
4058 | 22 | SCTP_READ_LOCK_HELD, so_locked); |
4059 | 22 | } |
4060 | | |
4061 | | static void |
4062 | | sctp_notify_stream_reset_tsn(struct sctp_tcb *stcb, int flag, int so_locked) |
4063 | 58 | { |
4064 | 58 | struct mbuf *m_notify; |
4065 | 58 | struct sctp_queued_to_read *control; |
4066 | 58 | struct sctp_assoc_reset_event *strasoc; |
4067 | | |
4068 | 58 | KASSERT(stcb != NULL, ("stcb == NULL")); |
4069 | 58 | SCTP_TCB_LOCK_ASSERT(stcb); |
4070 | 58 | SCTP_INP_READ_LOCK_ASSERT(stcb->sctp_ep); |
4071 | | |
4072 | 58 | if (sctp_stcb_is_feature_off(stcb->sctp_ep, stcb, SCTP_PCB_FLAGS_ASSOC_RESETEVNT)) { |
4073 | | /* event not enabled */ |
4074 | 0 | return; |
4075 | 0 | } |
4076 | | |
4077 | 58 | m_notify = sctp_get_mbuf_for_msg(sizeof(struct sctp_assoc_reset_event), 0, M_NOWAIT, 1, MT_DATA); |
4078 | 58 | if (m_notify == NULL) |
4079 | | /* no space left */ |
4080 | 0 | return; |
4081 | 58 | SCTP_BUF_LEN(m_notify) = 0; |
4082 | 58 | strasoc = mtod(m_notify, struct sctp_assoc_reset_event *); |
4083 | 58 | memset(strasoc, 0, sizeof(struct sctp_assoc_reset_event)); |
4084 | 58 | strasoc->assocreset_type = SCTP_ASSOC_RESET_EVENT; |
4085 | 58 | strasoc->assocreset_flags = flag; |
4086 | 58 | strasoc->assocreset_length = sizeof(struct sctp_assoc_reset_event); |
4087 | 58 | strasoc->assocreset_assoc_id= sctp_get_associd(stcb); |
4088 | 58 | strasoc->assocreset_local_tsn = stcb->asoc.sending_seq; |
4089 | 58 | strasoc->assocreset_remote_tsn = stcb->asoc.mapping_array_base_tsn + 1; |
4090 | 58 | SCTP_BUF_LEN(m_notify) = sizeof(struct sctp_assoc_reset_event); |
4091 | 58 | SCTP_BUF_NEXT(m_notify) = NULL; |
4092 | 58 | if (sctp_sbspace(&stcb->asoc, &stcb->sctp_socket->so_rcv) < SCTP_BUF_LEN(m_notify)) { |
4093 | | /* no space */ |
4094 | 20 | sctp_m_freem(m_notify); |
4095 | 20 | return; |
4096 | 20 | } |
4097 | | /* append to socket */ |
4098 | 38 | control = sctp_build_readq_entry(stcb, stcb->asoc.primary_destination, |
4099 | 38 | 0, 0, stcb->asoc.context, 0, 0, 0, |
4100 | 38 | m_notify); |
4101 | 38 | if (control == NULL) { |
4102 | | /* no memory */ |
4103 | 0 | sctp_m_freem(m_notify); |
4104 | 0 | return; |
4105 | 0 | } |
4106 | 38 | control->length = SCTP_BUF_LEN(m_notify); |
4107 | 38 | control->spec_flags = M_NOTIFICATION; |
4108 | | /* not that we need this */ |
4109 | 38 | control->tail_mbuf = m_notify; |
4110 | 38 | sctp_add_to_readq(stcb->sctp_ep, stcb, control, |
4111 | 38 | &stcb->sctp_socket->so_rcv, 1, |
4112 | 38 | SCTP_READ_LOCK_HELD, so_locked); |
4113 | 38 | } |
4114 | | |
4115 | | static void |
4116 | | sctp_notify_stream_reset(struct sctp_tcb *stcb, |
4117 | | int number_entries, uint16_t *list, int flag, int so_locked) |
4118 | 615 | { |
4119 | 615 | struct mbuf *m_notify; |
4120 | 615 | struct sctp_queued_to_read *control; |
4121 | 615 | struct sctp_stream_reset_event *strreset; |
4122 | 615 | int len; |
4123 | | |
4124 | 615 | KASSERT(stcb != NULL, ("stcb == NULL")); |
4125 | 615 | SCTP_TCB_LOCK_ASSERT(stcb); |
4126 | 615 | SCTP_INP_READ_LOCK_ASSERT(stcb->sctp_ep); |
4127 | | |
4128 | 615 | if (sctp_stcb_is_feature_off(stcb->sctp_ep, stcb, SCTP_PCB_FLAGS_STREAM_RESETEVNT)) { |
4129 | | /* event not enabled */ |
4130 | 0 | return; |
4131 | 0 | } |
4132 | | |
4133 | 615 | m_notify = sctp_get_mbuf_for_msg(MCLBYTES, 0, M_NOWAIT, 1, MT_DATA); |
4134 | 615 | if (m_notify == NULL) |
4135 | | /* no space left */ |
4136 | 0 | return; |
4137 | 615 | SCTP_BUF_LEN(m_notify) = 0; |
4138 | 615 | len = sizeof(struct sctp_stream_reset_event) + (number_entries * sizeof(uint16_t)); |
4139 | 615 | if (len > M_TRAILINGSPACE(m_notify)) { |
4140 | | /* never enough room */ |
4141 | 0 | sctp_m_freem(m_notify); |
4142 | 0 | return; |
4143 | 0 | } |
4144 | 615 | strreset = mtod(m_notify, struct sctp_stream_reset_event *); |
4145 | 615 | memset(strreset, 0, len); |
4146 | 615 | strreset->strreset_type = SCTP_STREAM_RESET_EVENT; |
4147 | 615 | strreset->strreset_flags = flag; |
4148 | 615 | strreset->strreset_length = len; |
4149 | 615 | strreset->strreset_assoc_id = sctp_get_associd(stcb); |
4150 | 615 | if (number_entries) { |
4151 | 260 | int i; |
4152 | | |
4153 | 5.67k | for (i = 0; i < number_entries; i++) { |
4154 | 5.41k | strreset->strreset_stream_list[i] = ntohs(list[i]); |
4155 | 5.41k | } |
4156 | 260 | } |
4157 | 615 | SCTP_BUF_LEN(m_notify) = len; |
4158 | 615 | SCTP_BUF_NEXT(m_notify) = NULL; |
4159 | 615 | if (sctp_sbspace(&stcb->asoc, &stcb->sctp_socket->so_rcv) < SCTP_BUF_LEN(m_notify)) { |
4160 | | /* no space */ |
4161 | 35 | sctp_m_freem(m_notify); |
4162 | 35 | return; |
4163 | 35 | } |
4164 | | /* append to socket */ |
4165 | 580 | control = sctp_build_readq_entry(stcb, stcb->asoc.primary_destination, |
4166 | 580 | 0, 0, stcb->asoc.context, 0, 0, 0, |
4167 | 580 | m_notify); |
4168 | 580 | if (control == NULL) { |
4169 | | /* no memory */ |
4170 | 0 | sctp_m_freem(m_notify); |
4171 | 0 | return; |
4172 | 0 | } |
4173 | 580 | control->length = SCTP_BUF_LEN(m_notify); |
4174 | 580 | control->spec_flags = M_NOTIFICATION; |
4175 | | /* not that we need this */ |
4176 | 580 | control->tail_mbuf = m_notify; |
4177 | 580 | sctp_add_to_readq(stcb->sctp_ep, stcb, control, |
4178 | 580 | &stcb->sctp_socket->so_rcv, 1, |
4179 | 580 | SCTP_READ_LOCK_HELD, so_locked); |
4180 | 580 | } |
4181 | | |
4182 | | static void |
4183 | | sctp_notify_remote_error(struct sctp_tcb *stcb, uint16_t error, |
4184 | | struct sctp_error_chunk *chunk, int so_locked) |
4185 | 426k | { |
4186 | 426k | struct mbuf *m_notify; |
4187 | 426k | struct sctp_remote_error *sre; |
4188 | 426k | struct sctp_queued_to_read *control; |
4189 | 426k | unsigned int notif_len; |
4190 | 426k | uint16_t chunk_len; |
4191 | | |
4192 | 426k | KASSERT(stcb != NULL, ("stcb == NULL")); |
4193 | 426k | SCTP_TCB_LOCK_ASSERT(stcb); |
4194 | 426k | SCTP_INP_READ_LOCK_ASSERT(stcb->sctp_ep); |
4195 | | |
4196 | 426k | if (sctp_stcb_is_feature_off(stcb->sctp_ep, stcb, SCTP_PCB_FLAGS_RECVPEERERR)) { |
4197 | 0 | return; |
4198 | 0 | } |
4199 | | |
4200 | 426k | if (chunk != NULL) { |
4201 | 426k | chunk_len = ntohs(chunk->ch.chunk_length); |
4202 | | /* |
4203 | | * Only SCTP_CHUNK_BUFFER_SIZE are guaranteed to be |
4204 | | * contiguous. |
4205 | | */ |
4206 | 426k | if (chunk_len > SCTP_CHUNK_BUFFER_SIZE) { |
4207 | 118 | chunk_len = SCTP_CHUNK_BUFFER_SIZE; |
4208 | 118 | } |
4209 | 426k | } else { |
4210 | 0 | chunk_len = 0; |
4211 | 0 | } |
4212 | 426k | notif_len = (unsigned int)(sizeof(struct sctp_remote_error) + chunk_len); |
4213 | 426k | m_notify = sctp_get_mbuf_for_msg(notif_len, 0, M_NOWAIT, 1, MT_DATA); |
4214 | 426k | if (m_notify == NULL) { |
4215 | | /* Retry with smaller value. */ |
4216 | 0 | notif_len = (unsigned int)sizeof(struct sctp_remote_error); |
4217 | 0 | m_notify = sctp_get_mbuf_for_msg(notif_len, 0, M_NOWAIT, 1, MT_DATA); |
4218 | 0 | if (m_notify == NULL) { |
4219 | 0 | return; |
4220 | 0 | } |
4221 | 0 | } |
4222 | 426k | SCTP_BUF_NEXT(m_notify) = NULL; |
4223 | 426k | sre = mtod(m_notify, struct sctp_remote_error *); |
4224 | 426k | memset(sre, 0, notif_len); |
4225 | 426k | sre->sre_type = SCTP_REMOTE_ERROR; |
4226 | 426k | sre->sre_flags = 0; |
4227 | 426k | sre->sre_length = sizeof(struct sctp_remote_error); |
4228 | 426k | sre->sre_error = error; |
4229 | 426k | sre->sre_assoc_id = sctp_get_associd(stcb); |
4230 | 426k | if (notif_len > sizeof(struct sctp_remote_error)) { |
4231 | 426k | memcpy(sre->sre_data, chunk, chunk_len); |
4232 | 426k | sre->sre_length += chunk_len; |
4233 | 426k | } |
4234 | 426k | SCTP_BUF_LEN(m_notify) = sre->sre_length; |
4235 | 426k | control = sctp_build_readq_entry(stcb, stcb->asoc.primary_destination, |
4236 | 426k | 0, 0, stcb->asoc.context, 0, 0, 0, |
4237 | 426k | m_notify); |
4238 | 426k | if (control != NULL) { |
4239 | 426k | control->length = SCTP_BUF_LEN(m_notify); |
4240 | 426k | control->spec_flags = M_NOTIFICATION; |
4241 | | /* not that we need this */ |
4242 | 426k | control->tail_mbuf = m_notify; |
4243 | 426k | sctp_add_to_readq(stcb->sctp_ep, stcb, control, |
4244 | 426k | &stcb->sctp_socket->so_rcv, 1, |
4245 | 426k | SCTP_READ_LOCK_HELD, so_locked); |
4246 | 426k | } else { |
4247 | 0 | sctp_m_freem(m_notify); |
4248 | 0 | } |
4249 | 426k | } |
4250 | | |
4251 | | void |
4252 | | sctp_ulp_notify(uint32_t notification, struct sctp_tcb *stcb, |
4253 | | uint32_t error, void *data, int so_locked) |
4254 | 526k | { |
4255 | 526k | struct sctp_inpcb *inp; |
4256 | 526k | struct sctp_nets *net; |
4257 | | |
4258 | 526k | KASSERT(stcb != NULL, ("stcb == NULL")); |
4259 | 526k | SCTP_TCB_LOCK_ASSERT(stcb); |
4260 | | |
4261 | 526k | inp = stcb->sctp_ep; |
4262 | | #if defined(__APPLE__) && !defined(__Userspace__) |
4263 | | if (so_locked) { |
4264 | | sctp_lock_assert(SCTP_INP_SO(inp)); |
4265 | | } else { |
4266 | | sctp_unlock_assert(SCTP_INP_SO(inp)); |
4267 | | } |
4268 | | #endif |
4269 | 526k | if (stcb->asoc.state & SCTP_STATE_CLOSED_SOCKET) { |
4270 | 0 | return; |
4271 | 0 | } |
4272 | 526k | if ((SCTP_GET_STATE(stcb) == SCTP_STATE_COOKIE_WAIT) || |
4273 | 526k | (SCTP_GET_STATE(stcb) == SCTP_STATE_COOKIE_ECHOED)) { |
4274 | 224k | if ((notification == SCTP_NOTIFY_INTERFACE_DOWN) || |
4275 | 224k | (notification == SCTP_NOTIFY_INTERFACE_UP) || |
4276 | 224k | (notification == SCTP_NOTIFY_INTERFACE_CONFIRMED)) { |
4277 | | /* Don't report these in front states */ |
4278 | 42 | return; |
4279 | 42 | } |
4280 | 224k | } |
4281 | 526k | if (notification != SCTP_NOTIFY_PARTIAL_DELVIERY_INDICATION) { |
4282 | 525k | SCTP_INP_READ_LOCK(inp); |
4283 | 525k | } |
4284 | 526k | SCTP_INP_READ_LOCK_ASSERT(inp); |
4285 | | |
4286 | 526k | if ((inp->sctp_flags & SCTP_PCB_FLAGS_SOCKET_GONE) || |
4287 | 526k | (inp->sctp_flags & SCTP_PCB_FLAGS_SOCKET_ALLGONE) || |
4288 | 526k | (inp->sctp_flags & SCTP_PCB_FLAGS_SOCKET_CANT_READ)) { |
4289 | 0 | SCTP_INP_READ_UNLOCK(inp); |
4290 | 0 | return; |
4291 | 0 | } |
4292 | | |
4293 | 526k | switch (notification) { |
4294 | 5.52k | case SCTP_NOTIFY_ASSOC_UP: |
4295 | 5.52k | if (stcb->asoc.assoc_up_sent == 0) { |
4296 | 5.52k | sctp_notify_assoc_change(SCTP_COMM_UP, stcb, error, NULL, false, false, so_locked); |
4297 | 5.52k | stcb->asoc.assoc_up_sent = 1; |
4298 | 5.52k | } |
4299 | 5.52k | if (stcb->asoc.adaptation_needed && (stcb->asoc.adaptation_sent == 0)) { |
4300 | 5.52k | sctp_notify_adaptation_layer(stcb, so_locked); |
4301 | 5.52k | } |
4302 | 5.52k | if (stcb->asoc.auth_supported == 0) { |
4303 | 0 | sctp_notify_authentication(stcb, SCTP_AUTH_NO_AUTH, 0, so_locked); |
4304 | 0 | } |
4305 | 5.52k | break; |
4306 | 1 | case SCTP_NOTIFY_ASSOC_DOWN: |
4307 | 1 | sctp_notify_assoc_change(SCTP_SHUTDOWN_COMP, stcb, error, NULL, false, false, so_locked); |
4308 | 1 | #if defined(__Userspace__) |
4309 | 1 | if (inp->recv_callback) { |
4310 | 0 | if (stcb->sctp_socket) { |
4311 | 0 | union sctp_sockstore addr; |
4312 | 0 | struct sctp_rcvinfo rcv; |
4313 | |
|
4314 | 0 | memset(&addr, 0, sizeof(union sctp_sockstore)); |
4315 | 0 | memset(&rcv, 0, sizeof(struct sctp_rcvinfo)); |
4316 | 0 | atomic_add_int(&stcb->asoc.refcnt, 1); |
4317 | 0 | SCTP_TCB_UNLOCK(stcb); |
4318 | 0 | inp->recv_callback(stcb->sctp_socket, addr, NULL, 0, rcv, 0, inp->ulp_info); |
4319 | 0 | SCTP_TCB_LOCK(stcb); |
4320 | 0 | atomic_subtract_int(&stcb->asoc.refcnt, 1); |
4321 | 0 | } |
4322 | 0 | } |
4323 | 1 | #endif |
4324 | 1 | break; |
4325 | 1 | case SCTP_NOTIFY_INTERFACE_DOWN: |
4326 | 0 | net = (struct sctp_nets *)data; |
4327 | 0 | sctp_notify_peer_addr_change(stcb, SCTP_ADDR_UNREACHABLE, |
4328 | 0 | &net->ro._l_addr.sa, error, so_locked); |
4329 | 0 | break; |
4330 | 0 | case SCTP_NOTIFY_INTERFACE_UP: |
4331 | 0 | net = (struct sctp_nets *)data; |
4332 | 0 | sctp_notify_peer_addr_change(stcb, SCTP_ADDR_AVAILABLE, |
4333 | 0 | &net->ro._l_addr.sa, error, so_locked); |
4334 | 0 | break; |
4335 | 1 | case SCTP_NOTIFY_INTERFACE_CONFIRMED: |
4336 | 1 | net = (struct sctp_nets *)data; |
4337 | 1 | sctp_notify_peer_addr_change(stcb, SCTP_ADDR_CONFIRMED, |
4338 | 1 | &net->ro._l_addr.sa, error, so_locked); |
4339 | 1 | break; |
4340 | 534 | case SCTP_NOTIFY_SPECIAL_SP_FAIL: |
4341 | 534 | sctp_notify_send_failed2(stcb, error, |
4342 | 534 | (struct sctp_stream_queue_pending *)data, so_locked); |
4343 | 534 | break; |
4344 | 513 | case SCTP_NOTIFY_SENT_DG_FAIL: |
4345 | 513 | sctp_notify_send_failed(stcb, 1, error, |
4346 | 513 | (struct sctp_tmit_chunk *)data, so_locked); |
4347 | 513 | break; |
4348 | 29 | case SCTP_NOTIFY_UNSENT_DG_FAIL: |
4349 | 29 | sctp_notify_send_failed(stcb, 0, error, |
4350 | 29 | (struct sctp_tmit_chunk *)data, so_locked); |
4351 | 29 | break; |
4352 | 1.26k | case SCTP_NOTIFY_PARTIAL_DELVIERY_INDICATION: |
4353 | 1.26k | sctp_notify_partial_delivery_indication(stcb, error, |
4354 | 1.26k | (struct sctp_queued_to_read *)data, |
4355 | 1.26k | so_locked); |
4356 | 1.26k | break; |
4357 | 1.64k | case SCTP_NOTIFY_ASSOC_LOC_ABORTED: |
4358 | 1.64k | if ((SCTP_GET_STATE(stcb) == SCTP_STATE_COOKIE_WAIT) || |
4359 | 1.64k | (SCTP_GET_STATE(stcb) == SCTP_STATE_COOKIE_ECHOED)) { |
4360 | 627 | sctp_notify_assoc_change(SCTP_CANT_STR_ASSOC, stcb, error, data, false, false, so_locked); |
4361 | 1.01k | } else { |
4362 | 1.01k | sctp_notify_assoc_change(SCTP_COMM_LOST, stcb, error, data, false, false, so_locked); |
4363 | 1.01k | } |
4364 | 1.64k | break; |
4365 | 59 | case SCTP_NOTIFY_ASSOC_REM_ABORTED: |
4366 | 59 | if ((SCTP_GET_STATE(stcb) == SCTP_STATE_COOKIE_WAIT) || |
4367 | 59 | (SCTP_GET_STATE(stcb) == SCTP_STATE_COOKIE_ECHOED)) { |
4368 | 39 | sctp_notify_assoc_change(SCTP_CANT_STR_ASSOC, stcb, error, data, true, false, so_locked); |
4369 | 39 | } else { |
4370 | 20 | sctp_notify_assoc_change(SCTP_COMM_LOST, stcb, error, data, true, false, so_locked); |
4371 | 20 | } |
4372 | 59 | break; |
4373 | 0 | case SCTP_NOTIFY_ASSOC_TIMEDOUT: |
4374 | 0 | if ((SCTP_GET_STATE(stcb) == SCTP_STATE_COOKIE_WAIT) || |
4375 | 0 | (SCTP_GET_STATE(stcb) == SCTP_STATE_COOKIE_ECHOED)) { |
4376 | 0 | sctp_notify_assoc_change(SCTP_CANT_STR_ASSOC, stcb, error, data, false, true, so_locked); |
4377 | 0 | } else { |
4378 | 0 | sctp_notify_assoc_change(SCTP_COMM_LOST, stcb, error, data, false, true, so_locked); |
4379 | 0 | } |
4380 | 0 | break; |
4381 | 0 | case SCTP_NOTIFY_ASSOC_RESTART: |
4382 | 0 | sctp_notify_assoc_change(SCTP_RESTART, stcb, error, NULL, false, false, so_locked); |
4383 | 0 | if (stcb->asoc.auth_supported == 0) { |
4384 | 0 | sctp_notify_authentication(stcb, SCTP_AUTH_NO_AUTH, 0, so_locked); |
4385 | 0 | } |
4386 | 0 | break; |
4387 | 58 | case SCTP_NOTIFY_STR_RESET_SEND: |
4388 | 58 | sctp_notify_stream_reset(stcb, error, ((uint16_t *) data), SCTP_STREAM_RESET_OUTGOING_SSN, so_locked); |
4389 | 58 | break; |
4390 | 557 | case SCTP_NOTIFY_STR_RESET_RECV: |
4391 | 557 | sctp_notify_stream_reset(stcb, error, ((uint16_t *) data), SCTP_STREAM_RESET_INCOMING, so_locked); |
4392 | 557 | break; |
4393 | 0 | case SCTP_NOTIFY_STR_RESET_FAILED_OUT: |
4394 | 0 | sctp_notify_stream_reset(stcb, error, ((uint16_t *) data), |
4395 | 0 | (SCTP_STREAM_RESET_OUTGOING_SSN|SCTP_STREAM_RESET_FAILED), so_locked); |
4396 | 0 | break; |
4397 | 0 | case SCTP_NOTIFY_STR_RESET_DENIED_OUT: |
4398 | 0 | sctp_notify_stream_reset(stcb, error, ((uint16_t *) data), |
4399 | 0 | (SCTP_STREAM_RESET_OUTGOING_SSN|SCTP_STREAM_RESET_DENIED), so_locked); |
4400 | 0 | break; |
4401 | 0 | case SCTP_NOTIFY_STR_RESET_FAILED_IN: |
4402 | 0 | sctp_notify_stream_reset(stcb, error, ((uint16_t *) data), |
4403 | 0 | (SCTP_STREAM_RESET_INCOMING|SCTP_STREAM_RESET_FAILED), so_locked); |
4404 | 0 | break; |
4405 | 0 | case SCTP_NOTIFY_STR_RESET_DENIED_IN: |
4406 | 0 | sctp_notify_stream_reset(stcb, error, ((uint16_t *) data), |
4407 | 0 | (SCTP_STREAM_RESET_INCOMING|SCTP_STREAM_RESET_DENIED), so_locked); |
4408 | 0 | break; |
4409 | 27 | case SCTP_NOTIFY_STR_RESET_ADD: |
4410 | 27 | sctp_notify_stream_reset_add(stcb, error, so_locked); |
4411 | 27 | break; |
4412 | 58 | case SCTP_NOTIFY_STR_RESET_TSN: |
4413 | 58 | sctp_notify_stream_reset_tsn(stcb, error, so_locked); |
4414 | 58 | break; |
4415 | 42.5k | case SCTP_NOTIFY_ASCONF_ADD_IP: |
4416 | 42.5k | sctp_notify_peer_addr_change(stcb, SCTP_ADDR_ADDED, data, |
4417 | 42.5k | error, so_locked); |
4418 | 42.5k | break; |
4419 | 44.8k | case SCTP_NOTIFY_ASCONF_DELETE_IP: |
4420 | 44.8k | sctp_notify_peer_addr_change(stcb, SCTP_ADDR_REMOVED, data, |
4421 | 44.8k | error, so_locked); |
4422 | 44.8k | break; |
4423 | 1.70k | case SCTP_NOTIFY_ASCONF_SET_PRIMARY: |
4424 | 1.70k | sctp_notify_peer_addr_change(stcb, SCTP_ADDR_MADE_PRIM, data, |
4425 | 1.70k | error, so_locked); |
4426 | 1.70k | break; |
4427 | 92 | case SCTP_NOTIFY_PEER_SHUTDOWN: |
4428 | 92 | sctp_notify_shutdown_event(stcb, so_locked); |
4429 | 92 | break; |
4430 | 0 | case SCTP_NOTIFY_AUTH_NEW_KEY: |
4431 | 0 | sctp_notify_authentication(stcb, SCTP_AUTH_NEW_KEY, |
4432 | 0 | *(uint16_t *)data, so_locked); |
4433 | 0 | break; |
4434 | 0 | case SCTP_NOTIFY_AUTH_FREE_KEY: |
4435 | 0 | sctp_notify_authentication(stcb, SCTP_AUTH_FREE_KEY, |
4436 | 0 | *(uint16_t *)data, so_locked); |
4437 | 0 | break; |
4438 | 0 | case SCTP_NOTIFY_NO_PEER_AUTH: |
4439 | 0 | sctp_notify_authentication(stcb, SCTP_AUTH_NO_AUTH, |
4440 | 0 | 0, so_locked); |
4441 | 0 | break; |
4442 | 470 | case SCTP_NOTIFY_SENDER_DRY: |
4443 | 470 | sctp_notify_sender_dry_event(stcb, so_locked); |
4444 | 470 | break; |
4445 | 426k | case SCTP_NOTIFY_REMOTE_ERROR: |
4446 | 426k | sctp_notify_remote_error(stcb, error, data, so_locked); |
4447 | 426k | break; |
4448 | 0 | default: |
4449 | 0 | SCTPDBG(SCTP_DEBUG_UTIL1, "%s: unknown notification %xh (%u)\n", |
4450 | 0 | __func__, notification, notification); |
4451 | 0 | break; |
4452 | 526k | } |
4453 | 526k | if (notification != SCTP_NOTIFY_PARTIAL_DELVIERY_INDICATION) { |
4454 | 525k | SCTP_INP_READ_UNLOCK(inp); |
4455 | 525k | } |
4456 | 526k | } |
4457 | | |
4458 | | void |
4459 | | sctp_report_all_outbound(struct sctp_tcb *stcb, uint16_t error, int so_locked) |
4460 | 1.69k | { |
4461 | 1.69k | struct sctp_association *asoc; |
4462 | 1.69k | struct sctp_stream_out *outs; |
4463 | 1.69k | struct sctp_tmit_chunk *chk, *nchk; |
4464 | 1.69k | struct sctp_stream_queue_pending *sp, *nsp; |
4465 | 1.69k | int i; |
4466 | | |
4467 | 1.69k | if (stcb == NULL) { |
4468 | 0 | return; |
4469 | 0 | } |
4470 | 1.69k | asoc = &stcb->asoc; |
4471 | 1.69k | if (asoc->state & SCTP_STATE_ABOUT_TO_BE_FREED) { |
4472 | | /* already being freed */ |
4473 | 0 | return; |
4474 | 0 | } |
4475 | | #if defined(__APPLE__) && !defined(__Userspace__) |
4476 | | if (so_locked) { |
4477 | | sctp_lock_assert(SCTP_INP_SO(stcb->sctp_ep)); |
4478 | | } else { |
4479 | | sctp_unlock_assert(SCTP_INP_SO(stcb->sctp_ep)); |
4480 | | } |
4481 | | #endif |
4482 | 1.69k | if ((stcb->sctp_ep->sctp_flags & SCTP_PCB_FLAGS_SOCKET_GONE) || |
4483 | 1.69k | (stcb->sctp_ep->sctp_flags & SCTP_PCB_FLAGS_SOCKET_ALLGONE) || |
4484 | 1.69k | (asoc->state & SCTP_STATE_CLOSED_SOCKET)) { |
4485 | 0 | return; |
4486 | 0 | } |
4487 | | /* now through all the gunk freeing chunks */ |
4488 | | /* sent queue SHOULD be empty */ |
4489 | 1.69k | TAILQ_FOREACH_SAFE(chk, &asoc->sent_queue, sctp_next, nchk) { |
4490 | 513 | TAILQ_REMOVE(&asoc->sent_queue, chk, sctp_next); |
4491 | 513 | asoc->sent_queue_cnt--; |
4492 | 513 | if (chk->sent != SCTP_DATAGRAM_NR_ACKED) { |
4493 | 513 | if (asoc->strmout[chk->rec.data.sid].chunks_on_queues > 0) { |
4494 | 513 | asoc->strmout[chk->rec.data.sid].chunks_on_queues--; |
4495 | 513 | #ifdef INVARIANTS |
4496 | 513 | } else { |
4497 | 0 | panic("No chunks on the queues for sid %u.", chk->rec.data.sid); |
4498 | 0 | #endif |
4499 | 0 | } |
4500 | 513 | } |
4501 | 513 | if (chk->data != NULL) { |
4502 | 513 | sctp_free_bufspace(stcb, asoc, chk, 1); |
4503 | 513 | sctp_ulp_notify(SCTP_NOTIFY_SENT_DG_FAIL, stcb, |
4504 | 513 | error, chk, so_locked); |
4505 | 513 | if (chk->data) { |
4506 | 0 | sctp_m_freem(chk->data); |
4507 | 0 | chk->data = NULL; |
4508 | 0 | } |
4509 | 513 | } |
4510 | 513 | sctp_free_a_chunk(stcb, chk, so_locked); |
4511 | | /*sa_ignore FREED_MEMORY*/ |
4512 | 513 | } |
4513 | | /* pending send queue SHOULD be empty */ |
4514 | 1.69k | TAILQ_FOREACH_SAFE(chk, &asoc->send_queue, sctp_next, nchk) { |
4515 | 29 | TAILQ_REMOVE(&asoc->send_queue, chk, sctp_next); |
4516 | 29 | asoc->send_queue_cnt--; |
4517 | 29 | if (asoc->strmout[chk->rec.data.sid].chunks_on_queues > 0) { |
4518 | 29 | asoc->strmout[chk->rec.data.sid].chunks_on_queues--; |
4519 | 29 | #ifdef INVARIANTS |
4520 | 29 | } else { |
4521 | 0 | panic("No chunks on the queues for sid %u.", chk->rec.data.sid); |
4522 | 0 | #endif |
4523 | 0 | } |
4524 | 29 | if (chk->data != NULL) { |
4525 | 29 | sctp_free_bufspace(stcb, asoc, chk, 1); |
4526 | 29 | sctp_ulp_notify(SCTP_NOTIFY_UNSENT_DG_FAIL, stcb, |
4527 | 29 | error, chk, so_locked); |
4528 | 29 | if (chk->data) { |
4529 | 0 | sctp_m_freem(chk->data); |
4530 | 0 | chk->data = NULL; |
4531 | 0 | } |
4532 | 29 | } |
4533 | 29 | sctp_free_a_chunk(stcb, chk, so_locked); |
4534 | | /*sa_ignore FREED_MEMORY*/ |
4535 | 29 | } |
4536 | 410k | for (i = 0; i < asoc->streamoutcnt; i++) { |
4537 | | /* For each stream */ |
4538 | 408k | outs = &asoc->strmout[i]; |
4539 | | /* clean up any sends there */ |
4540 | 408k | TAILQ_FOREACH_SAFE(sp, &outs->outqueue, next, nsp) { |
4541 | 534 | atomic_subtract_int(&asoc->stream_queue_cnt, 1); |
4542 | 534 | TAILQ_REMOVE(&outs->outqueue, sp, next); |
4543 | 534 | stcb->asoc.ss_functions.sctp_ss_remove_from_stream(stcb, asoc, outs, sp); |
4544 | 534 | sctp_free_spbufspace(stcb, asoc, sp); |
4545 | 534 | if (sp->data) { |
4546 | 534 | sctp_ulp_notify(SCTP_NOTIFY_SPECIAL_SP_FAIL, stcb, |
4547 | 534 | error, (void *)sp, so_locked); |
4548 | 534 | if (sp->data) { |
4549 | 0 | sctp_m_freem(sp->data); |
4550 | 0 | sp->data = NULL; |
4551 | 0 | sp->tail_mbuf = NULL; |
4552 | 0 | sp->length = 0; |
4553 | 0 | } |
4554 | 534 | } |
4555 | 534 | if (sp->net) { |
4556 | 0 | sctp_free_remote_addr(sp->net); |
4557 | 0 | sp->net = NULL; |
4558 | 0 | } |
4559 | | /* Free the chunk */ |
4560 | 534 | sctp_free_a_strmoq(stcb, sp, so_locked); |
4561 | | /*sa_ignore FREED_MEMORY*/ |
4562 | 534 | } |
4563 | 408k | } |
4564 | 1.69k | } |
4565 | | |
4566 | | void |
4567 | | sctp_abort_notification(struct sctp_tcb *stcb, bool from_peer, bool timeout, |
4568 | | uint16_t error, struct sctp_abort_chunk *abort, |
4569 | | int so_locked) |
4570 | 1.69k | { |
4571 | 1.69k | if (stcb == NULL) { |
4572 | 0 | return; |
4573 | 0 | } |
4574 | | #if defined(__APPLE__) && !defined(__Userspace__) |
4575 | | if (so_locked) { |
4576 | | sctp_lock_assert(SCTP_INP_SO(stcb->sctp_ep)); |
4577 | | } else { |
4578 | | sctp_unlock_assert(SCTP_INP_SO(stcb->sctp_ep)); |
4579 | | } |
4580 | | #endif |
4581 | 1.69k | SCTP_TCB_LOCK_ASSERT(stcb); |
4582 | | |
4583 | 1.69k | if ((stcb->sctp_ep->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL) || |
4584 | 1.69k | ((stcb->sctp_ep->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) && |
4585 | 1.69k | (stcb->sctp_ep->sctp_flags & SCTP_PCB_FLAGS_CONNECTED))) { |
4586 | 1.69k | sctp_pcb_add_flags(stcb->sctp_ep, SCTP_PCB_FLAGS_WAS_ABORTED); |
4587 | 1.69k | } |
4588 | 1.69k | if ((stcb->sctp_ep->sctp_flags & SCTP_PCB_FLAGS_SOCKET_GONE) || |
4589 | 1.69k | (stcb->sctp_ep->sctp_flags & SCTP_PCB_FLAGS_SOCKET_ALLGONE) || |
4590 | 1.69k | (stcb->asoc.state & SCTP_STATE_CLOSED_SOCKET)) { |
4591 | 0 | return; |
4592 | 0 | } |
4593 | 1.69k | SCTP_ADD_SUBSTATE(stcb, SCTP_STATE_WAS_ABORTED); |
4594 | | /* Tell them we lost the asoc */ |
4595 | 1.69k | sctp_report_all_outbound(stcb, error, so_locked); |
4596 | 1.69k | if (from_peer) { |
4597 | 59 | sctp_ulp_notify(SCTP_NOTIFY_ASSOC_REM_ABORTED, stcb, error, abort, so_locked); |
4598 | 1.64k | } else { |
4599 | 1.64k | if (timeout) { |
4600 | 0 | sctp_ulp_notify(SCTP_NOTIFY_ASSOC_TIMEDOUT, stcb, error, abort, so_locked); |
4601 | 1.64k | } else { |
4602 | 1.64k | sctp_ulp_notify(SCTP_NOTIFY_ASSOC_LOC_ABORTED, stcb, error, abort, so_locked); |
4603 | 1.64k | } |
4604 | 1.64k | } |
4605 | 1.69k | } |
4606 | | |
4607 | | void |
4608 | | sctp_abort_association(struct sctp_inpcb *inp, struct sctp_tcb *stcb, |
4609 | | struct mbuf *m, int iphlen, |
4610 | | struct sockaddr *src, struct sockaddr *dst, |
4611 | | struct sctphdr *sh, struct mbuf *op_err, |
4612 | | #if defined(__FreeBSD__) && !defined(__Userspace__) |
4613 | | uint8_t mflowtype, uint32_t mflowid, |
4614 | | #endif |
4615 | | uint32_t vrf_id, uint16_t port) |
4616 | 482 | { |
4617 | | #if defined(__APPLE__) && !defined(__Userspace__) |
4618 | | struct socket *so; |
4619 | | #endif |
4620 | 482 | struct sctp_gen_error_cause* cause; |
4621 | 482 | uint32_t vtag; |
4622 | 482 | uint16_t cause_code; |
4623 | | |
4624 | 482 | if (stcb != NULL) { |
4625 | 482 | vtag = stcb->asoc.peer_vtag; |
4626 | 482 | vrf_id = stcb->asoc.vrf_id; |
4627 | 482 | if (op_err != NULL) { |
4628 | | /* Read the cause code from the error cause. */ |
4629 | 270 | cause = mtod(op_err, struct sctp_gen_error_cause *); |
4630 | 270 | cause_code = ntohs(cause->code); |
4631 | 270 | } else { |
4632 | 212 | cause_code = 0; |
4633 | 212 | } |
4634 | 482 | } else { |
4635 | 0 | vtag = 0; |
4636 | 0 | } |
4637 | 482 | sctp_send_abort(m, iphlen, src, dst, sh, vtag, op_err, |
4638 | | #if defined(__FreeBSD__) && !defined(__Userspace__) |
4639 | | mflowtype, mflowid, inp->fibnum, |
4640 | | #endif |
4641 | 482 | vrf_id, port); |
4642 | 482 | if (stcb != NULL) { |
4643 | | /* We have a TCB to abort, send notification too */ |
4644 | 482 | sctp_abort_notification(stcb, false, false, cause_code, NULL, SCTP_SO_NOT_LOCKED); |
4645 | | /* Ok, now lets free it */ |
4646 | | #if defined(__APPLE__) && !defined(__Userspace__) |
4647 | | so = SCTP_INP_SO(inp); |
4648 | | atomic_add_int(&stcb->asoc.refcnt, 1); |
4649 | | SCTP_TCB_UNLOCK(stcb); |
4650 | | SCTP_SOCKET_LOCK(so, 1); |
4651 | | SCTP_TCB_LOCK(stcb); |
4652 | | atomic_subtract_int(&stcb->asoc.refcnt, 1); |
4653 | | #endif |
4654 | 482 | SCTP_STAT_INCR_COUNTER32(sctps_aborted); |
4655 | 482 | if ((SCTP_GET_STATE(stcb) == SCTP_STATE_OPEN) || |
4656 | 482 | (SCTP_GET_STATE(stcb) == SCTP_STATE_SHUTDOWN_RECEIVED)) { |
4657 | 0 | SCTP_STAT_DECR_GAUGE32(sctps_currestab); |
4658 | 0 | } |
4659 | 482 | (void)sctp_free_assoc(inp, stcb, SCTP_NORMAL_PROC, |
4660 | 482 | SCTP_FROM_SCTPUTIL + SCTP_LOC_4); |
4661 | | #if defined(__APPLE__) && !defined(__Userspace__) |
4662 | | SCTP_SOCKET_UNLOCK(so, 1); |
4663 | | #endif |
4664 | 482 | } |
4665 | 482 | } |
4666 | | #ifdef SCTP_ASOCLOG_OF_TSNS |
4667 | | void |
4668 | | sctp_print_out_track_log(struct sctp_tcb *stcb) |
4669 | | { |
4670 | | #ifdef NOSIY_PRINTS |
4671 | | int i; |
4672 | | SCTP_PRINTF("Last ep reason:%x\n", stcb->sctp_ep->last_abort_code); |
4673 | | SCTP_PRINTF("IN bound TSN log-aaa\n"); |
4674 | | if ((stcb->asoc.tsn_in_at == 0) && (stcb->asoc.tsn_in_wrapped == 0)) { |
4675 | | SCTP_PRINTF("None rcvd\n"); |
4676 | | goto none_in; |
4677 | | } |
4678 | | if (stcb->asoc.tsn_in_wrapped) { |
4679 | | for (i = stcb->asoc.tsn_in_at; i < SCTP_TSN_LOG_SIZE; i++) { |
4680 | | SCTP_PRINTF("TSN:%x strm:%d seq:%d flags:%x sz:%d\n", |
4681 | | stcb->asoc.in_tsnlog[i].tsn, |
4682 | | stcb->asoc.in_tsnlog[i].strm, |
4683 | | stcb->asoc.in_tsnlog[i].seq, |
4684 | | stcb->asoc.in_tsnlog[i].flgs, |
4685 | | stcb->asoc.in_tsnlog[i].sz); |
4686 | | } |
4687 | | } |
4688 | | if (stcb->asoc.tsn_in_at) { |
4689 | | for (i = 0; i < stcb->asoc.tsn_in_at; i++) { |
4690 | | SCTP_PRINTF("TSN:%x strm:%d seq:%d flags:%x sz:%d\n", |
4691 | | stcb->asoc.in_tsnlog[i].tsn, |
4692 | | stcb->asoc.in_tsnlog[i].strm, |
4693 | | stcb->asoc.in_tsnlog[i].seq, |
4694 | | stcb->asoc.in_tsnlog[i].flgs, |
4695 | | stcb->asoc.in_tsnlog[i].sz); |
4696 | | } |
4697 | | } |
4698 | | none_in: |
4699 | | SCTP_PRINTF("OUT bound TSN log-aaa\n"); |
4700 | | if ((stcb->asoc.tsn_out_at == 0) && |
4701 | | (stcb->asoc.tsn_out_wrapped == 0)) { |
4702 | | SCTP_PRINTF("None sent\n"); |
4703 | | } |
4704 | | if (stcb->asoc.tsn_out_wrapped) { |
4705 | | for (i = stcb->asoc.tsn_out_at; i < SCTP_TSN_LOG_SIZE; i++) { |
4706 | | SCTP_PRINTF("TSN:%x strm:%d seq:%d flags:%x sz:%d\n", |
4707 | | stcb->asoc.out_tsnlog[i].tsn, |
4708 | | stcb->asoc.out_tsnlog[i].strm, |
4709 | | stcb->asoc.out_tsnlog[i].seq, |
4710 | | stcb->asoc.out_tsnlog[i].flgs, |
4711 | | stcb->asoc.out_tsnlog[i].sz); |
4712 | | } |
4713 | | } |
4714 | | if (stcb->asoc.tsn_out_at) { |
4715 | | for (i = 0; i < stcb->asoc.tsn_out_at; i++) { |
4716 | | SCTP_PRINTF("TSN:%x strm:%d seq:%d flags:%x sz:%d\n", |
4717 | | stcb->asoc.out_tsnlog[i].tsn, |
4718 | | stcb->asoc.out_tsnlog[i].strm, |
4719 | | stcb->asoc.out_tsnlog[i].seq, |
4720 | | stcb->asoc.out_tsnlog[i].flgs, |
4721 | | stcb->asoc.out_tsnlog[i].sz); |
4722 | | } |
4723 | | } |
4724 | | #endif |
4725 | | } |
4726 | | #endif |
4727 | | |
4728 | | void |
4729 | | sctp_abort_an_association(struct sctp_inpcb *inp, struct sctp_tcb *stcb, |
4730 | | struct mbuf *op_err, bool timedout, int so_locked) |
4731 | 1.15k | { |
4732 | | #if defined(__APPLE__) && !defined(__Userspace__) |
4733 | | struct socket *so; |
4734 | | #endif |
4735 | 1.15k | struct sctp_gen_error_cause* cause; |
4736 | 1.15k | uint16_t cause_code; |
4737 | | |
4738 | | #if defined(__APPLE__) && !defined(__Userspace__) |
4739 | | so = SCTP_INP_SO(inp); |
4740 | | #endif |
4741 | | #if defined(__APPLE__) && !defined(__Userspace__) |
4742 | | if (so_locked) { |
4743 | | sctp_lock_assert(SCTP_INP_SO(inp)); |
4744 | | } else { |
4745 | | sctp_unlock_assert(SCTP_INP_SO(inp)); |
4746 | | } |
4747 | | #endif |
4748 | 1.15k | if (stcb == NULL) { |
4749 | | /* Got to have a TCB */ |
4750 | 0 | if (inp->sctp_flags & SCTP_PCB_FLAGS_SOCKET_GONE) { |
4751 | 0 | if (LIST_EMPTY(&inp->sctp_asoc_list)) { |
4752 | | #if defined(__APPLE__) && !defined(__Userspace__) |
4753 | | if (!so_locked) { |
4754 | | SCTP_SOCKET_LOCK(so, 1); |
4755 | | } |
4756 | | #endif |
4757 | 0 | sctp_inpcb_free(inp, SCTP_FREE_SHOULD_USE_ABORT, |
4758 | 0 | SCTP_CALLED_DIRECTLY_NOCMPSET); |
4759 | | #if defined(__APPLE__) && !defined(__Userspace__) |
4760 | | if (!so_locked) { |
4761 | | SCTP_SOCKET_UNLOCK(so, 1); |
4762 | | } |
4763 | | #endif |
4764 | 0 | } |
4765 | 0 | } |
4766 | 0 | return; |
4767 | 0 | } |
4768 | 1.15k | if (op_err != NULL) { |
4769 | | /* Read the cause code from the error cause. */ |
4770 | 1.15k | cause = mtod(op_err, struct sctp_gen_error_cause *); |
4771 | 1.15k | cause_code = ntohs(cause->code); |
4772 | 1.15k | } else { |
4773 | 0 | cause_code = 0; |
4774 | 0 | } |
4775 | | /* notify the peer */ |
4776 | 1.15k | sctp_send_abort_tcb(stcb, op_err, so_locked); |
4777 | 1.15k | SCTP_STAT_INCR_COUNTER32(sctps_aborted); |
4778 | 1.15k | if ((SCTP_GET_STATE(stcb) == SCTP_STATE_OPEN) || |
4779 | 1.15k | (SCTP_GET_STATE(stcb) == SCTP_STATE_SHUTDOWN_RECEIVED)) { |
4780 | 1.01k | SCTP_STAT_DECR_GAUGE32(sctps_currestab); |
4781 | 1.01k | } |
4782 | | /* notify the ulp */ |
4783 | 1.15k | if ((inp->sctp_flags & SCTP_PCB_FLAGS_SOCKET_GONE) == 0) { |
4784 | 1.15k | sctp_abort_notification(stcb, false, timedout, cause_code, NULL, so_locked); |
4785 | 1.15k | } |
4786 | | /* now free the asoc */ |
4787 | | #ifdef SCTP_ASOCLOG_OF_TSNS |
4788 | | sctp_print_out_track_log(stcb); |
4789 | | #endif |
4790 | | #if defined(__APPLE__) && !defined(__Userspace__) |
4791 | | if (!so_locked) { |
4792 | | atomic_add_int(&stcb->asoc.refcnt, 1); |
4793 | | SCTP_TCB_UNLOCK(stcb); |
4794 | | SCTP_SOCKET_LOCK(so, 1); |
4795 | | SCTP_TCB_LOCK(stcb); |
4796 | | atomic_subtract_int(&stcb->asoc.refcnt, 1); |
4797 | | } |
4798 | | #endif |
4799 | 1.15k | (void)sctp_free_assoc(inp, stcb, SCTP_NORMAL_PROC, |
4800 | 1.15k | SCTP_FROM_SCTPUTIL + SCTP_LOC_5); |
4801 | | #if defined(__APPLE__) && !defined(__Userspace__) |
4802 | | if (!so_locked) { |
4803 | | SCTP_SOCKET_UNLOCK(so, 1); |
4804 | | } |
4805 | | #endif |
4806 | 1.15k | } |
4807 | | |
4808 | | void |
4809 | | sctp_handle_ootb(struct mbuf *m, int iphlen, int offset, |
4810 | | struct sockaddr *src, struct sockaddr *dst, |
4811 | | struct sctphdr *sh, struct sctp_inpcb *inp, |
4812 | | struct mbuf *cause, |
4813 | | #if defined(__FreeBSD__) && !defined(__Userspace__) |
4814 | | uint8_t mflowtype, uint32_t mflowid, uint16_t fibnum, |
4815 | | #endif |
4816 | | uint32_t vrf_id, uint16_t port) |
4817 | 348 | { |
4818 | 348 | struct sctp_chunkhdr *ch, chunk_buf; |
4819 | 348 | unsigned int chk_length; |
4820 | 348 | int contains_init_chunk; |
4821 | | |
4822 | 348 | SCTP_STAT_INCR_COUNTER32(sctps_outoftheblue); |
4823 | | /* Generate a TO address for future reference */ |
4824 | 348 | if (inp && (inp->sctp_flags & SCTP_PCB_FLAGS_SOCKET_GONE)) { |
4825 | 0 | if (LIST_EMPTY(&inp->sctp_asoc_list)) { |
4826 | | #if defined(__APPLE__) && !defined(__Userspace__) |
4827 | | SCTP_SOCKET_LOCK(SCTP_INP_SO(inp), 1); |
4828 | | #endif |
4829 | 0 | sctp_inpcb_free(inp, SCTP_FREE_SHOULD_USE_ABORT, |
4830 | 0 | SCTP_CALLED_DIRECTLY_NOCMPSET); |
4831 | | #if defined(__APPLE__) && !defined(__Userspace__) |
4832 | | SCTP_SOCKET_UNLOCK(SCTP_INP_SO(inp), 1); |
4833 | | #endif |
4834 | 0 | } |
4835 | 0 | } |
4836 | 348 | contains_init_chunk = 0; |
4837 | 348 | ch = (struct sctp_chunkhdr *)sctp_m_getptr(m, offset, |
4838 | 348 | sizeof(*ch), (uint8_t *) & chunk_buf); |
4839 | 33.4k | while (ch != NULL) { |
4840 | 33.1k | chk_length = ntohs(ch->chunk_length); |
4841 | 33.1k | if (chk_length < sizeof(*ch)) { |
4842 | | /* break to abort land */ |
4843 | 38 | break; |
4844 | 38 | } |
4845 | 33.1k | switch (ch->chunk_type) { |
4846 | 30.2k | case SCTP_INIT: |
4847 | 30.2k | contains_init_chunk = 1; |
4848 | 30.2k | break; |
4849 | 4 | case SCTP_PACKET_DROPPED: |
4850 | | /* we don't respond to pkt-dropped */ |
4851 | 4 | return; |
4852 | 1 | case SCTP_ABORT_ASSOCIATION: |
4853 | | /* we don't respond with an ABORT to an ABORT */ |
4854 | 1 | return; |
4855 | 1 | case SCTP_SHUTDOWN_COMPLETE: |
4856 | | /* |
4857 | | * we ignore it since we are not waiting for it and |
4858 | | * peer is gone |
4859 | | */ |
4860 | 1 | return; |
4861 | 1 | case SCTP_SHUTDOWN_ACK: |
4862 | 1 | sctp_send_shutdown_complete2(src, dst, sh, |
4863 | | #if defined(__FreeBSD__) && !defined(__Userspace__) |
4864 | | mflowtype, mflowid, fibnum, |
4865 | | #endif |
4866 | 1 | vrf_id, port); |
4867 | 1 | return; |
4868 | 2.92k | default: |
4869 | 2.92k | break; |
4870 | 33.1k | } |
4871 | 33.1k | offset += SCTP_SIZE32(chk_length); |
4872 | 33.1k | ch = (struct sctp_chunkhdr *)sctp_m_getptr(m, offset, |
4873 | 33.1k | sizeof(*ch), (uint8_t *) & chunk_buf); |
4874 | 33.1k | } |
4875 | 341 | if ((SCTP_BASE_SYSCTL(sctp_blackhole) == 0) || |
4876 | 341 | ((SCTP_BASE_SYSCTL(sctp_blackhole) == 1) && |
4877 | 341 | (contains_init_chunk == 0))) { |
4878 | 341 | sctp_send_abort(m, iphlen, src, dst, sh, 0, cause, |
4879 | | #if defined(__FreeBSD__) && !defined(__Userspace__) |
4880 | | mflowtype, mflowid, fibnum, |
4881 | | #endif |
4882 | 341 | vrf_id, port); |
4883 | 341 | } |
4884 | 341 | } |
4885 | | |
4886 | | /* |
4887 | | * check the inbound datagram to make sure there is not an abort inside it, |
4888 | | * if there is return 1, else return 0. |
4889 | | */ |
4890 | | int |
4891 | | sctp_is_there_an_abort_here(struct mbuf *m, int iphlen, uint32_t *vtag) |
4892 | 823 | { |
4893 | 823 | struct sctp_chunkhdr *ch; |
4894 | 823 | struct sctp_init_chunk *init_chk, chunk_buf; |
4895 | 823 | int offset; |
4896 | 823 | unsigned int chk_length; |
4897 | | |
4898 | 823 | offset = iphlen + sizeof(struct sctphdr); |
4899 | 823 | ch = (struct sctp_chunkhdr *)sctp_m_getptr(m, offset, sizeof(*ch), |
4900 | 823 | (uint8_t *) & chunk_buf); |
4901 | 70.7k | while (ch != NULL) { |
4902 | 69.9k | chk_length = ntohs(ch->chunk_length); |
4903 | 69.9k | if (chk_length < sizeof(*ch)) { |
4904 | | /* packet is probably corrupt */ |
4905 | 38 | break; |
4906 | 38 | } |
4907 | | /* we seem to be ok, is it an abort? */ |
4908 | 69.9k | if (ch->chunk_type == SCTP_ABORT_ASSOCIATION) { |
4909 | | /* yep, tell them */ |
4910 | 0 | return (1); |
4911 | 0 | } |
4912 | 69.9k | if ((ch->chunk_type == SCTP_INITIATION) || |
4913 | 69.9k | (ch->chunk_type == SCTP_INITIATION_ACK)) { |
4914 | | /* need to update the Vtag */ |
4915 | 31.7k | init_chk = (struct sctp_init_chunk *)sctp_m_getptr(m, |
4916 | 31.7k | offset, sizeof(struct sctp_init_chunk), (uint8_t *) & chunk_buf); |
4917 | 31.7k | if (init_chk != NULL) { |
4918 | 31.5k | *vtag = ntohl(init_chk->init.initiate_tag); |
4919 | 31.5k | } |
4920 | 31.7k | } |
4921 | | /* Nope, move to the next chunk */ |
4922 | 69.9k | offset += SCTP_SIZE32(chk_length); |
4923 | 69.9k | ch = (struct sctp_chunkhdr *)sctp_m_getptr(m, offset, |
4924 | 69.9k | sizeof(*ch), (uint8_t *) & chunk_buf); |
4925 | 69.9k | } |
4926 | 823 | return (0); |
4927 | 823 | } |
4928 | | |
4929 | | /* |
4930 | | * currently (2/02), ifa_addr embeds scope_id's and don't have sin6_scope_id |
4931 | | * set (i.e. it's 0) so, create this function to compare link local scopes |
4932 | | */ |
4933 | | #ifdef INET6 |
4934 | | uint32_t |
4935 | | sctp_is_same_scope(struct sockaddr_in6 *addr1, struct sockaddr_in6 *addr2) |
4936 | 0 | { |
4937 | 0 | #if defined(__Userspace__) |
4938 | | /*__Userspace__ Returning 1 here always */ |
4939 | 0 | #endif |
4940 | | #if defined(SCTP_EMBEDDED_V6_SCOPE) |
4941 | | struct sockaddr_in6 a, b; |
4942 | | |
4943 | | /* save copies */ |
4944 | | a = *addr1; |
4945 | | b = *addr2; |
4946 | | |
4947 | | if (a.sin6_scope_id == 0) |
4948 | | #ifdef SCTP_KAME |
4949 | | if (sa6_recoverscope(&a)) { |
4950 | | #else |
4951 | | if (in6_recoverscope(&a, &a.sin6_addr, NULL)) { |
4952 | | #endif /* SCTP_KAME */ |
4953 | | /* can't get scope, so can't match */ |
4954 | | return (0); |
4955 | | } |
4956 | | if (b.sin6_scope_id == 0) |
4957 | | #ifdef SCTP_KAME |
4958 | | if (sa6_recoverscope(&b)) { |
4959 | | #else |
4960 | | if (in6_recoverscope(&b, &b.sin6_addr, NULL)) { |
4961 | | #endif /* SCTP_KAME */ |
4962 | | /* can't get scope, so can't match */ |
4963 | | return (0); |
4964 | | } |
4965 | | if (a.sin6_scope_id != b.sin6_scope_id) |
4966 | | return (0); |
4967 | | #else |
4968 | 0 | if (addr1->sin6_scope_id != addr2->sin6_scope_id) |
4969 | 0 | return (0); |
4970 | 0 | #endif /* SCTP_EMBEDDED_V6_SCOPE */ |
4971 | | |
4972 | 0 | return (1); |
4973 | 0 | } |
4974 | | |
4975 | | #if defined(SCTP_EMBEDDED_V6_SCOPE) |
4976 | | /* |
4977 | | * returns a sockaddr_in6 with embedded scope recovered and removed |
4978 | | */ |
4979 | | struct sockaddr_in6 * |
4980 | | sctp_recover_scope(struct sockaddr_in6 *addr, struct sockaddr_in6 *store) |
4981 | | { |
4982 | | /* check and strip embedded scope junk */ |
4983 | | if (addr->sin6_family == AF_INET6) { |
4984 | | if (IN6_IS_SCOPE_LINKLOCAL(&addr->sin6_addr)) { |
4985 | | if (addr->sin6_scope_id == 0) { |
4986 | | *store = *addr; |
4987 | | #ifdef SCTP_KAME |
4988 | | if (!sa6_recoverscope(store)) { |
4989 | | #else |
4990 | | if (!in6_recoverscope(store, &store->sin6_addr, |
4991 | | NULL)) { |
4992 | | #endif /* SCTP_KAME */ |
4993 | | /* use the recovered scope */ |
4994 | | addr = store; |
4995 | | } |
4996 | | } else { |
4997 | | /* else, return the original "to" addr */ |
4998 | | in6_clearscope(&addr->sin6_addr); |
4999 | | } |
5000 | | } |
5001 | | } |
5002 | | return (addr); |
5003 | | } |
5004 | | #endif /* SCTP_EMBEDDED_V6_SCOPE */ |
5005 | | #endif |
5006 | | |
5007 | | /* |
5008 | | * are the two addresses the same? currently a "scopeless" check returns: 1 |
5009 | | * if same, 0 if not |
5010 | | */ |
5011 | | int |
5012 | | sctp_cmpaddr(struct sockaddr *sa1, struct sockaddr *sa2) |
5013 | 355k | { |
5014 | | |
5015 | | /* must be valid */ |
5016 | 355k | if (sa1 == NULL || sa2 == NULL) |
5017 | 0 | return (0); |
5018 | | |
5019 | | /* must be the same family */ |
5020 | 355k | if (sa1->sa_family != sa2->sa_family) |
5021 | 80.3k | return (0); |
5022 | | |
5023 | 274k | switch (sa1->sa_family) { |
5024 | 0 | #ifdef INET6 |
5025 | 30.3k | case AF_INET6: |
5026 | 30.3k | { |
5027 | | /* IPv6 addresses */ |
5028 | 30.3k | struct sockaddr_in6 *sin6_1, *sin6_2; |
5029 | | |
5030 | 30.3k | sin6_1 = (struct sockaddr_in6 *)sa1; |
5031 | 30.3k | sin6_2 = (struct sockaddr_in6 *)sa2; |
5032 | 30.3k | return (SCTP6_ARE_ADDR_EQUAL(sin6_1, |
5033 | 30.3k | sin6_2)); |
5034 | 0 | } |
5035 | 0 | #endif |
5036 | 0 | #ifdef INET |
5037 | 208k | case AF_INET: |
5038 | 208k | { |
5039 | | /* IPv4 addresses */ |
5040 | 208k | struct sockaddr_in *sin_1, *sin_2; |
5041 | | |
5042 | 208k | sin_1 = (struct sockaddr_in *)sa1; |
5043 | 208k | sin_2 = (struct sockaddr_in *)sa2; |
5044 | 208k | return (sin_1->sin_addr.s_addr == sin_2->sin_addr.s_addr); |
5045 | 0 | } |
5046 | 0 | #endif |
5047 | 0 | #if defined(__Userspace__) |
5048 | 35.7k | case AF_CONN: |
5049 | 35.7k | { |
5050 | 35.7k | struct sockaddr_conn *sconn_1, *sconn_2; |
5051 | | |
5052 | 35.7k | sconn_1 = (struct sockaddr_conn *)sa1; |
5053 | 35.7k | sconn_2 = (struct sockaddr_conn *)sa2; |
5054 | 35.7k | return (sconn_1->sconn_addr == sconn_2->sconn_addr); |
5055 | 0 | } |
5056 | 0 | #endif |
5057 | 0 | default: |
5058 | | /* we don't do these... */ |
5059 | 0 | return (0); |
5060 | 274k | } |
5061 | 274k | } |
5062 | | |
5063 | | void |
5064 | | sctp_print_address(struct sockaddr *sa) |
5065 | 0 | { |
5066 | 0 | #ifdef INET6 |
5067 | | #if defined(__FreeBSD__) && !defined(__Userspace__) |
5068 | | char ip6buf[INET6_ADDRSTRLEN]; |
5069 | | #endif |
5070 | 0 | #endif |
5071 | |
|
5072 | 0 | switch (sa->sa_family) { |
5073 | 0 | #ifdef INET6 |
5074 | 0 | case AF_INET6: |
5075 | 0 | { |
5076 | 0 | struct sockaddr_in6 *sin6; |
5077 | |
|
5078 | 0 | sin6 = (struct sockaddr_in6 *)sa; |
5079 | 0 | #if defined(__Userspace__) |
5080 | 0 | SCTP_PRINTF("IPv6 address: %x:%x:%x:%x:%x:%x:%x:%x:port:%d scope:%u\n", |
5081 | 0 | ntohs(sin6->sin6_addr.s6_addr16[0]), |
5082 | 0 | ntohs(sin6->sin6_addr.s6_addr16[1]), |
5083 | 0 | ntohs(sin6->sin6_addr.s6_addr16[2]), |
5084 | 0 | ntohs(sin6->sin6_addr.s6_addr16[3]), |
5085 | 0 | ntohs(sin6->sin6_addr.s6_addr16[4]), |
5086 | 0 | ntohs(sin6->sin6_addr.s6_addr16[5]), |
5087 | 0 | ntohs(sin6->sin6_addr.s6_addr16[6]), |
5088 | 0 | ntohs(sin6->sin6_addr.s6_addr16[7]), |
5089 | 0 | ntohs(sin6->sin6_port), |
5090 | 0 | sin6->sin6_scope_id); |
5091 | | #else |
5092 | | #if defined(__FreeBSD__) && !defined(__Userspace__) |
5093 | | SCTP_PRINTF("IPv6 address: %s:port:%d scope:%u\n", |
5094 | | ip6_sprintf(ip6buf, &sin6->sin6_addr), |
5095 | | ntohs(sin6->sin6_port), |
5096 | | sin6->sin6_scope_id); |
5097 | | #else |
5098 | | SCTP_PRINTF("IPv6 address: %s:port:%d scope:%u\n", |
5099 | | ip6_sprintf(&sin6->sin6_addr), |
5100 | | ntohs(sin6->sin6_port), |
5101 | | sin6->sin6_scope_id); |
5102 | | #endif |
5103 | | #endif |
5104 | 0 | break; |
5105 | 0 | } |
5106 | 0 | #endif |
5107 | 0 | #ifdef INET |
5108 | 0 | case AF_INET: |
5109 | 0 | { |
5110 | 0 | struct sockaddr_in *sin; |
5111 | 0 | unsigned char *p; |
5112 | |
|
5113 | 0 | sin = (struct sockaddr_in *)sa; |
5114 | 0 | p = (unsigned char *)&sin->sin_addr; |
5115 | 0 | SCTP_PRINTF("IPv4 address: %u.%u.%u.%u:%d\n", |
5116 | 0 | p[0], p[1], p[2], p[3], ntohs(sin->sin_port)); |
5117 | 0 | break; |
5118 | 0 | } |
5119 | 0 | #endif |
5120 | 0 | #if defined(__Userspace__) |
5121 | 0 | case AF_CONN: |
5122 | 0 | { |
5123 | 0 | struct sockaddr_conn *sconn; |
5124 | |
|
5125 | 0 | sconn = (struct sockaddr_conn *)sa; |
5126 | 0 | SCTP_PRINTF("AF_CONN address: %p\n", sconn->sconn_addr); |
5127 | 0 | break; |
5128 | 0 | } |
5129 | 0 | #endif |
5130 | 0 | default: |
5131 | 0 | SCTP_PRINTF("?\n"); |
5132 | 0 | break; |
5133 | 0 | } |
5134 | 0 | } |
5135 | | |
5136 | | void |
5137 | | sctp_pull_off_control_to_new_inp(struct sctp_inpcb *old_inp, |
5138 | | struct sctp_inpcb *new_inp, |
5139 | | struct sctp_tcb *stcb, |
5140 | | int waitflags) |
5141 | 0 | { |
5142 | | /* |
5143 | | * go through our old INP and pull off any control structures that |
5144 | | * belong to stcb and move then to the new inp. |
5145 | | */ |
5146 | 0 | struct socket *old_so, *new_so; |
5147 | 0 | struct sctp_queued_to_read *control, *nctl; |
5148 | 0 | struct sctp_readhead tmp_queue; |
5149 | 0 | struct mbuf *m; |
5150 | | #if (defined(__FreeBSD__) || defined(__APPLE__)) && !defined(__Userspace__) |
5151 | | int error = 0; |
5152 | | #endif |
5153 | |
|
5154 | 0 | old_so = old_inp->sctp_socket; |
5155 | 0 | new_so = new_inp->sctp_socket; |
5156 | 0 | TAILQ_INIT(&tmp_queue); |
5157 | | #if (defined(__FreeBSD__) || defined(__APPLE__)) && !defined(__Userspace__) |
5158 | | #if defined(__FreeBSD__) |
5159 | | error = SOCK_IO_RECV_LOCK(old_so, waitflags); |
5160 | | #else |
5161 | | error = sblock(&old_so->so_rcv, waitflags); |
5162 | | #endif |
5163 | | if (error) { |
5164 | | /* Gak, can't get I/O lock, we have a problem. |
5165 | | * data will be left stranded.. and we |
5166 | | * don't dare look at it since the |
5167 | | * other thread may be reading something. |
5168 | | * Oh well, its a screwed up app that does |
5169 | | * a peeloff OR a accept while reading |
5170 | | * from the main socket... actually its |
5171 | | * only the peeloff() case, since I think |
5172 | | * read will fail on a listening socket.. |
5173 | | */ |
5174 | | return; |
5175 | | } |
5176 | | #endif |
5177 | | /* lock the socket buffers */ |
5178 | 0 | SCTP_INP_READ_LOCK(old_inp); |
5179 | 0 | TAILQ_FOREACH_SAFE(control, &old_inp->read_queue, next, nctl) { |
5180 | | /* Pull off all for out target stcb */ |
5181 | 0 | if (control->stcb == stcb) { |
5182 | | /* remove it we want it */ |
5183 | 0 | TAILQ_REMOVE(&old_inp->read_queue, control, next); |
5184 | 0 | TAILQ_INSERT_TAIL(&tmp_queue, control, next); |
5185 | 0 | m = control->data; |
5186 | 0 | while (m) { |
5187 | 0 | if (SCTP_BASE_SYSCTL(sctp_logging_level) & SCTP_SB_LOGGING_ENABLE) { |
5188 | 0 | sctp_sblog(&old_so->so_rcv, control->do_not_ref_stcb?NULL:stcb, SCTP_LOG_SBFREE,SCTP_BUF_LEN(m)); |
5189 | 0 | } |
5190 | 0 | sctp_sbfree(control, stcb, &old_so->so_rcv, m); |
5191 | 0 | if (SCTP_BASE_SYSCTL(sctp_logging_level) & SCTP_SB_LOGGING_ENABLE) { |
5192 | 0 | sctp_sblog(&old_so->so_rcv, control->do_not_ref_stcb?NULL:stcb, SCTP_LOG_SBRESULT, 0); |
5193 | 0 | } |
5194 | 0 | m = SCTP_BUF_NEXT(m); |
5195 | 0 | } |
5196 | 0 | } |
5197 | 0 | } |
5198 | 0 | SCTP_INP_READ_UNLOCK(old_inp); |
5199 | | /* Remove the recv-lock on the old socket */ |
5200 | | #if defined(__APPLE__) && !defined(__Userspace__) |
5201 | | sbunlock(&old_so->so_rcv, 1); |
5202 | | #endif |
5203 | | #if defined(__FreeBSD__) && !defined(__Userspace__) |
5204 | | SOCK_IO_RECV_UNLOCK(old_so); |
5205 | | #endif |
5206 | | /* Now we move them over to the new socket buffer */ |
5207 | 0 | SCTP_INP_READ_LOCK(new_inp); |
5208 | 0 | TAILQ_FOREACH_SAFE(control, &tmp_queue, next, nctl) { |
5209 | 0 | TAILQ_INSERT_TAIL(&new_inp->read_queue, control, next); |
5210 | 0 | m = control->data; |
5211 | 0 | while (m) { |
5212 | 0 | if (SCTP_BASE_SYSCTL(sctp_logging_level) & SCTP_SB_LOGGING_ENABLE) { |
5213 | 0 | sctp_sblog(&new_so->so_rcv, control->do_not_ref_stcb?NULL:stcb, SCTP_LOG_SBALLOC, SCTP_BUF_LEN(m)); |
5214 | 0 | } |
5215 | 0 | sctp_sballoc(stcb, &new_so->so_rcv, m); |
5216 | 0 | if (SCTP_BASE_SYSCTL(sctp_logging_level) & SCTP_SB_LOGGING_ENABLE) { |
5217 | 0 | sctp_sblog(&new_so->so_rcv, control->do_not_ref_stcb?NULL:stcb, SCTP_LOG_SBRESULT, 0); |
5218 | 0 | } |
5219 | 0 | m = SCTP_BUF_NEXT(m); |
5220 | 0 | } |
5221 | 0 | } |
5222 | 0 | SCTP_INP_READ_UNLOCK(new_inp); |
5223 | 0 | } |
5224 | | |
5225 | | void |
5226 | | sctp_wakeup_the_read_socket(struct sctp_inpcb *inp, |
5227 | | struct sctp_tcb *stcb, |
5228 | | int so_locked |
5229 | | #if !(defined(__APPLE__) && !defined(__Userspace__)) |
5230 | | SCTP_UNUSED |
5231 | | #endif |
5232 | | ) |
5233 | 531k | { |
5234 | 531k | if ((inp != NULL) && |
5235 | 531k | (inp->sctp_socket != NULL) && |
5236 | 531k | (((inp->sctp_flags & (SCTP_PCB_FLAGS_TCPTYPE | SCTP_PCB_FLAGS_IN_TCPPOOL)) == 0) || |
5237 | 531k | !SCTP_IS_LISTENING(inp))) { |
5238 | | #if defined(__APPLE__) && !defined(__Userspace__) |
5239 | | struct socket *so; |
5240 | | |
5241 | | so = SCTP_INP_SO(inp); |
5242 | | if (!so_locked) { |
5243 | | if (stcb) { |
5244 | | atomic_add_int(&stcb->asoc.refcnt, 1); |
5245 | | SCTP_TCB_UNLOCK(stcb); |
5246 | | } |
5247 | | SCTP_SOCKET_LOCK(so, 1); |
5248 | | if (stcb) { |
5249 | | SCTP_TCB_LOCK(stcb); |
5250 | | atomic_subtract_int(&stcb->asoc.refcnt, 1); |
5251 | | } |
5252 | | if (inp->sctp_flags & SCTP_PCB_FLAGS_SOCKET_GONE) { |
5253 | | SCTP_SOCKET_UNLOCK(so, 1); |
5254 | | return; |
5255 | | } |
5256 | | } |
5257 | | #endif |
5258 | 531k | sctp_sorwakeup(inp, inp->sctp_socket); |
5259 | | #if defined(__APPLE__) && !defined(__Userspace__) |
5260 | | if (!so_locked) { |
5261 | | SCTP_SOCKET_UNLOCK(so, 1); |
5262 | | } |
5263 | | #endif |
5264 | 531k | } |
5265 | 531k | } |
5266 | | #if defined(__Userspace__) |
5267 | | |
5268 | | void |
5269 | | sctp_invoke_recv_callback(struct sctp_inpcb *inp, |
5270 | | struct sctp_tcb *stcb, |
5271 | | struct sctp_queued_to_read *control, |
5272 | | int inp_read_lock_held) |
5273 | 531k | { |
5274 | 531k | uint32_t pd_point, length; |
5275 | | |
5276 | 531k | if ((inp->recv_callback == NULL) || |
5277 | 531k | (stcb == NULL) || |
5278 | 531k | (stcb->sctp_socket == NULL)) { |
5279 | 531k | return; |
5280 | 531k | } |
5281 | | |
5282 | 0 | length = control->length; |
5283 | 0 | if (stcb != NULL && stcb->sctp_socket != NULL) { |
5284 | 0 | pd_point = min(SCTP_SB_LIMIT_RCV(stcb->sctp_socket) >> SCTP_PARTIAL_DELIVERY_SHIFT, |
5285 | 0 | stcb->sctp_ep->partial_delivery_point); |
5286 | 0 | } else { |
5287 | 0 | pd_point = inp->partial_delivery_point; |
5288 | 0 | } |
5289 | 0 | if ((control->end_added == 1) || (length >= pd_point)) { |
5290 | 0 | struct socket *so; |
5291 | 0 | struct mbuf *m; |
5292 | 0 | char *buffer; |
5293 | 0 | struct sctp_rcvinfo rcv; |
5294 | 0 | union sctp_sockstore addr; |
5295 | 0 | int flags; |
5296 | |
|
5297 | 0 | if ((buffer = malloc(length)) == NULL) { |
5298 | 0 | return; |
5299 | 0 | } |
5300 | 0 | if (inp_read_lock_held == 0) { |
5301 | 0 | SCTP_INP_READ_LOCK(inp); |
5302 | 0 | } |
5303 | 0 | so = stcb->sctp_socket; |
5304 | 0 | for (m = control->data; m; m = SCTP_BUF_NEXT(m)) { |
5305 | 0 | sctp_sbfree(control, control->stcb, &so->so_rcv, m); |
5306 | 0 | } |
5307 | 0 | m_copydata(control->data, 0, length, buffer); |
5308 | 0 | memset(&rcv, 0, sizeof(struct sctp_rcvinfo)); |
5309 | 0 | rcv.rcv_sid = control->sinfo_stream; |
5310 | 0 | rcv.rcv_ssn = (uint16_t)control->mid; |
5311 | 0 | rcv.rcv_flags = control->sinfo_flags; |
5312 | 0 | rcv.rcv_ppid = control->sinfo_ppid; |
5313 | 0 | rcv.rcv_tsn = control->sinfo_tsn; |
5314 | 0 | rcv.rcv_cumtsn = control->sinfo_cumtsn; |
5315 | 0 | rcv.rcv_context = control->sinfo_context; |
5316 | 0 | rcv.rcv_assoc_id = control->sinfo_assoc_id; |
5317 | 0 | memset(&addr, 0, sizeof(union sctp_sockstore)); |
5318 | 0 | switch (control->whoFrom->ro._l_addr.sa.sa_family) { |
5319 | 0 | #ifdef INET |
5320 | 0 | case AF_INET: |
5321 | 0 | addr.sin = control->whoFrom->ro._l_addr.sin; |
5322 | 0 | break; |
5323 | 0 | #endif |
5324 | 0 | #ifdef INET6 |
5325 | 0 | case AF_INET6: |
5326 | 0 | addr.sin6 = control->whoFrom->ro._l_addr.sin6; |
5327 | 0 | break; |
5328 | 0 | #endif |
5329 | 0 | case AF_CONN: |
5330 | 0 | addr.sconn = control->whoFrom->ro._l_addr.sconn; |
5331 | 0 | break; |
5332 | 0 | default: |
5333 | 0 | addr.sa = control->whoFrom->ro._l_addr.sa; |
5334 | 0 | break; |
5335 | 0 | } |
5336 | 0 | flags = 0; |
5337 | 0 | if (control->end_added == 1) { |
5338 | 0 | flags |= MSG_EOR; |
5339 | 0 | } |
5340 | 0 | if (control->spec_flags & M_NOTIFICATION) { |
5341 | 0 | flags |= MSG_NOTIFICATION; |
5342 | 0 | } |
5343 | 0 | sctp_m_freem(control->data); |
5344 | 0 | control->data = NULL; |
5345 | 0 | control->tail_mbuf = NULL; |
5346 | 0 | control->length = 0; |
5347 | 0 | if (control->end_added) { |
5348 | 0 | TAILQ_REMOVE(&stcb->sctp_ep->read_queue, control, next); |
5349 | 0 | control->on_read_q = 0; |
5350 | 0 | sctp_free_remote_addr(control->whoFrom); |
5351 | 0 | control->whoFrom = NULL; |
5352 | 0 | sctp_free_a_readq(stcb, control); |
5353 | 0 | } |
5354 | 0 | atomic_add_int(&stcb->asoc.refcnt, 1); |
5355 | 0 | SCTP_TCB_UNLOCK(stcb); |
5356 | 0 | if (inp_read_lock_held == 0) { |
5357 | 0 | SCTP_INP_READ_UNLOCK(inp); |
5358 | 0 | } |
5359 | 0 | inp->recv_callback(so, addr, buffer, length, rcv, flags, inp->ulp_info); |
5360 | 0 | SCTP_TCB_LOCK(stcb); |
5361 | 0 | atomic_subtract_int(&stcb->asoc.refcnt, 1); |
5362 | 0 | } |
5363 | 0 | } |
5364 | | #endif |
5365 | | |
5366 | | void |
5367 | | sctp_add_to_readq(struct sctp_inpcb *inp, |
5368 | | struct sctp_tcb *stcb, |
5369 | | struct sctp_queued_to_read *control, |
5370 | | struct sockbuf *sb, |
5371 | | int end, |
5372 | | int inp_read_lock_held, |
5373 | | int so_locked) |
5374 | 531k | { |
5375 | | /* |
5376 | | * Here we must place the control on the end of the socket read |
5377 | | * queue AND increment sb_cc so that select will work properly on |
5378 | | * read. |
5379 | | */ |
5380 | 531k | struct mbuf *m, *prev = NULL; |
5381 | | |
5382 | 531k | if (inp == NULL) { |
5383 | | /* Gak, TSNH!! */ |
5384 | 0 | #ifdef INVARIANTS |
5385 | 0 | panic("Gak, inp NULL on add_to_readq"); |
5386 | 0 | #endif |
5387 | 0 | return; |
5388 | 0 | } |
5389 | | #if defined(__APPLE__) && !defined(__Userspace__) |
5390 | | if (so_locked) { |
5391 | | sctp_lock_assert(SCTP_INP_SO(inp)); |
5392 | | } else { |
5393 | | sctp_unlock_assert(SCTP_INP_SO(inp)); |
5394 | | } |
5395 | | #endif |
5396 | 531k | if (inp_read_lock_held == SCTP_READ_LOCK_NOT_HELD) { |
5397 | 883 | SCTP_INP_READ_LOCK(inp); |
5398 | 883 | } |
5399 | 531k | if (inp->sctp_flags & SCTP_PCB_FLAGS_SOCKET_CANT_READ) { |
5400 | 0 | if (!control->on_strm_q) { |
5401 | 0 | sctp_free_remote_addr(control->whoFrom); |
5402 | 0 | if (control->data) { |
5403 | 0 | sctp_m_freem(control->data); |
5404 | 0 | control->data = NULL; |
5405 | 0 | } |
5406 | 0 | sctp_free_a_readq(stcb, control); |
5407 | 0 | } |
5408 | 0 | if (inp_read_lock_held == SCTP_READ_LOCK_NOT_HELD) { |
5409 | 0 | SCTP_INP_READ_UNLOCK(inp); |
5410 | 0 | } |
5411 | 0 | return; |
5412 | 0 | } |
5413 | 531k | if ((control->spec_flags & M_NOTIFICATION) == 0) { |
5414 | 883 | atomic_add_int(&inp->total_recvs, 1); |
5415 | 883 | if (!control->do_not_ref_stcb) { |
5416 | 883 | atomic_add_int(&stcb->total_recvs, 1); |
5417 | 883 | } |
5418 | 883 | } |
5419 | 531k | m = control->data; |
5420 | 531k | control->held_length = 0; |
5421 | 531k | control->length = 0; |
5422 | 1.06M | while (m != NULL) { |
5423 | 533k | if (SCTP_BUF_LEN(m) == 0) { |
5424 | | /* Skip mbufs with NO length */ |
5425 | 119 | if (prev == NULL) { |
5426 | | /* First one */ |
5427 | 119 | control->data = sctp_m_free(m); |
5428 | 119 | m = control->data; |
5429 | 119 | } else { |
5430 | 0 | SCTP_BUF_NEXT(prev) = sctp_m_free(m); |
5431 | 0 | m = SCTP_BUF_NEXT(prev); |
5432 | 0 | } |
5433 | 119 | if (m == NULL) { |
5434 | 0 | control->tail_mbuf = prev; |
5435 | 0 | } |
5436 | 119 | continue; |
5437 | 119 | } |
5438 | 533k | prev = m; |
5439 | 533k | if (SCTP_BASE_SYSCTL(sctp_logging_level) & SCTP_SB_LOGGING_ENABLE) { |
5440 | 0 | sctp_sblog(sb, control->do_not_ref_stcb?NULL:stcb, SCTP_LOG_SBALLOC, SCTP_BUF_LEN(m)); |
5441 | 0 | } |
5442 | 533k | sctp_sballoc(stcb, sb, m); |
5443 | 533k | if (SCTP_BASE_SYSCTL(sctp_logging_level) & SCTP_SB_LOGGING_ENABLE) { |
5444 | 0 | sctp_sblog(sb, control->do_not_ref_stcb?NULL:stcb, SCTP_LOG_SBRESULT, 0); |
5445 | 0 | } |
5446 | 533k | atomic_add_int(&control->length, SCTP_BUF_LEN(m)); |
5447 | 533k | m = SCTP_BUF_NEXT(m); |
5448 | 533k | } |
5449 | 531k | if (prev != NULL) { |
5450 | 531k | control->tail_mbuf = prev; |
5451 | 531k | } else { |
5452 | | /* Everything got collapsed out?? */ |
5453 | 0 | if (!control->on_strm_q) { |
5454 | 0 | sctp_free_remote_addr(control->whoFrom); |
5455 | 0 | sctp_free_a_readq(stcb, control); |
5456 | 0 | } |
5457 | 0 | if (inp_read_lock_held == 0) |
5458 | 0 | SCTP_INP_READ_UNLOCK(inp); |
5459 | 0 | return; |
5460 | 0 | } |
5461 | 531k | if (end) { |
5462 | 531k | control->end_added = 1; |
5463 | 531k | } |
5464 | 531k | TAILQ_INSERT_TAIL(&inp->read_queue, control, next); |
5465 | 531k | control->on_read_q = 1; |
5466 | 531k | #if defined(__Userspace__) |
5467 | 531k | sctp_invoke_recv_callback(inp, stcb, control, SCTP_READ_LOCK_HELD); |
5468 | 531k | #endif |
5469 | 531k | if ((inp != NULL) && (inp->sctp_socket != NULL)) { |
5470 | 531k | sctp_wakeup_the_read_socket(inp, stcb, so_locked); |
5471 | 531k | } |
5472 | 531k | if (inp_read_lock_held == SCTP_READ_LOCK_NOT_HELD) { |
5473 | 883 | SCTP_INP_READ_UNLOCK(inp); |
5474 | 883 | } |
5475 | 531k | } |
5476 | | |
5477 | | /*************HOLD THIS COMMENT FOR PATCH FILE OF |
5478 | | *************ALTERNATE ROUTING CODE |
5479 | | */ |
5480 | | |
5481 | | /*************HOLD THIS COMMENT FOR END OF PATCH FILE OF |
5482 | | *************ALTERNATE ROUTING CODE |
5483 | | */ |
5484 | | |
5485 | | struct mbuf * |
5486 | | sctp_generate_cause(uint16_t code, char *info) |
5487 | 8.65k | { |
5488 | 8.65k | struct mbuf *m; |
5489 | 8.65k | struct sctp_gen_error_cause *cause; |
5490 | 8.65k | size_t info_len; |
5491 | 8.65k | uint16_t len; |
5492 | | |
5493 | 8.65k | if ((code == 0) || (info == NULL)) { |
5494 | 560 | return (NULL); |
5495 | 560 | } |
5496 | 8.09k | info_len = strlen(info); |
5497 | 8.09k | if (info_len > (SCTP_MAX_CAUSE_LENGTH - sizeof(struct sctp_paramhdr))) { |
5498 | 0 | return (NULL); |
5499 | 0 | } |
5500 | 8.09k | len = (uint16_t)(sizeof(struct sctp_paramhdr) + info_len); |
5501 | 8.09k | m = sctp_get_mbuf_for_msg(len, 0, M_NOWAIT, 1, MT_DATA); |
5502 | 8.09k | if (m != NULL) { |
5503 | 8.09k | SCTP_BUF_LEN(m) = len; |
5504 | 8.09k | cause = mtod(m, struct sctp_gen_error_cause *); |
5505 | 8.09k | cause->code = htons(code); |
5506 | 8.09k | cause->length = htons(len); |
5507 | 8.09k | memcpy(cause->info, info, info_len); |
5508 | 8.09k | } |
5509 | 8.09k | return (m); |
5510 | 8.09k | } |
5511 | | |
5512 | | struct mbuf * |
5513 | | sctp_generate_no_user_data_cause(uint32_t tsn) |
5514 | 5 | { |
5515 | 5 | struct mbuf *m; |
5516 | 5 | struct sctp_error_no_user_data *no_user_data_cause; |
5517 | 5 | uint16_t len; |
5518 | | |
5519 | 5 | len = (uint16_t)sizeof(struct sctp_error_no_user_data); |
5520 | 5 | m = sctp_get_mbuf_for_msg(len, 0, M_NOWAIT, 1, MT_DATA); |
5521 | 5 | if (m != NULL) { |
5522 | 5 | SCTP_BUF_LEN(m) = len; |
5523 | 5 | no_user_data_cause = mtod(m, struct sctp_error_no_user_data *); |
5524 | 5 | no_user_data_cause->cause.code = htons(SCTP_CAUSE_NO_USER_DATA); |
5525 | 5 | no_user_data_cause->cause.length = htons(len); |
5526 | 5 | no_user_data_cause->tsn = htonl(tsn); |
5527 | 5 | } |
5528 | 5 | return (m); |
5529 | 5 | } |
5530 | | |
5531 | | void |
5532 | | sctp_free_bufspace(struct sctp_tcb *stcb, struct sctp_association *asoc, |
5533 | | struct sctp_tmit_chunk *tp1, int chk_cnt) |
5534 | 542 | { |
5535 | 542 | if (tp1->data == NULL) { |
5536 | 0 | return; |
5537 | 0 | } |
5538 | 542 | atomic_subtract_int(&asoc->chunks_on_out_queue, chk_cnt); |
5539 | | #ifdef SCTP_MBCNT_LOGGING |
5540 | | if (SCTP_BASE_SYSCTL(sctp_logging_level) & SCTP_MBCNT_LOGGING_ENABLE) { |
5541 | | sctp_log_mbcnt(SCTP_LOG_MBCNT_DECREASE, |
5542 | | asoc->total_output_queue_size, |
5543 | | tp1->book_size, |
5544 | | 0, |
5545 | | tp1->mbcnt); |
5546 | | } |
5547 | | #endif |
5548 | 542 | if (asoc->total_output_queue_size >= tp1->book_size) { |
5549 | 542 | atomic_subtract_int(&asoc->total_output_queue_size, tp1->book_size); |
5550 | 542 | } else { |
5551 | 0 | asoc->total_output_queue_size = 0; |
5552 | 0 | } |
5553 | 542 | if ((stcb->sctp_socket != NULL) && |
5554 | 542 | (((stcb->sctp_ep->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL)) || |
5555 | 542 | ((stcb->sctp_ep->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE)))) { |
5556 | 542 | SCTP_SB_DECR(&stcb->sctp_socket->so_snd, tp1->book_size); |
5557 | 542 | } |
5558 | 542 | } |
5559 | | |
5560 | | int |
5561 | | sctp_release_pr_sctp_chunk(struct sctp_tcb *stcb, struct sctp_tmit_chunk *tp1, |
5562 | | uint8_t sent, int so_locked) |
5563 | 0 | { |
5564 | 0 | struct sctp_stream_out *strq; |
5565 | 0 | struct sctp_tmit_chunk *chk = NULL, *tp2; |
5566 | 0 | struct sctp_stream_queue_pending *sp; |
5567 | 0 | uint32_t mid; |
5568 | 0 | uint16_t sid; |
5569 | 0 | uint8_t foundeom = 0; |
5570 | 0 | int ret_sz = 0; |
5571 | 0 | int notdone; |
5572 | 0 | int do_wakeup_routine = 0; |
5573 | |
|
5574 | | #if defined(__APPLE__) && !defined(__Userspace__) |
5575 | | if (so_locked) { |
5576 | | sctp_lock_assert(SCTP_INP_SO(stcb->sctp_ep)); |
5577 | | } else { |
5578 | | sctp_unlock_assert(SCTP_INP_SO(stcb->sctp_ep)); |
5579 | | } |
5580 | | #endif |
5581 | 0 | SCTP_TCB_LOCK_ASSERT(stcb); |
5582 | | |
5583 | 0 | sid = tp1->rec.data.sid; |
5584 | 0 | mid = tp1->rec.data.mid; |
5585 | 0 | if (sent || ((tp1->rec.data.rcv_flags & SCTP_DATA_FIRST_FRAG) == 0)) { |
5586 | 0 | stcb->asoc.abandoned_sent[0]++; |
5587 | 0 | stcb->asoc.abandoned_sent[PR_SCTP_POLICY(tp1->flags)]++; |
5588 | 0 | stcb->asoc.strmout[sid].abandoned_sent[0]++; |
5589 | | #if defined(SCTP_DETAILED_STR_STATS) |
5590 | | stcb->asoc.strmout[sid].abandoned_sent[PR_SCTP_POLICY(tp1->flags)]++; |
5591 | | #endif |
5592 | 0 | } else { |
5593 | 0 | stcb->asoc.abandoned_unsent[0]++; |
5594 | 0 | stcb->asoc.abandoned_unsent[PR_SCTP_POLICY(tp1->flags)]++; |
5595 | 0 | stcb->asoc.strmout[sid].abandoned_unsent[0]++; |
5596 | | #if defined(SCTP_DETAILED_STR_STATS) |
5597 | | stcb->asoc.strmout[sid].abandoned_unsent[PR_SCTP_POLICY(tp1->flags)]++; |
5598 | | #endif |
5599 | 0 | } |
5600 | 0 | do { |
5601 | 0 | ret_sz += tp1->book_size; |
5602 | 0 | if (tp1->data != NULL) { |
5603 | 0 | if (tp1->sent < SCTP_DATAGRAM_RESEND) { |
5604 | 0 | sctp_flight_size_decrease(tp1); |
5605 | 0 | sctp_total_flight_decrease(stcb, tp1); |
5606 | 0 | } |
5607 | 0 | sctp_free_bufspace(stcb, &stcb->asoc, tp1, 1); |
5608 | 0 | stcb->asoc.peers_rwnd += tp1->send_size; |
5609 | 0 | stcb->asoc.peers_rwnd += SCTP_BASE_SYSCTL(sctp_peer_chunk_oh); |
5610 | 0 | if (sent) { |
5611 | 0 | sctp_ulp_notify(SCTP_NOTIFY_SENT_DG_FAIL, stcb, 0, tp1, so_locked); |
5612 | 0 | } else { |
5613 | 0 | sctp_ulp_notify(SCTP_NOTIFY_UNSENT_DG_FAIL, stcb, 0, tp1, so_locked); |
5614 | 0 | } |
5615 | 0 | if (tp1->data) { |
5616 | 0 | sctp_m_freem(tp1->data); |
5617 | 0 | tp1->data = NULL; |
5618 | 0 | } |
5619 | 0 | do_wakeup_routine = 1; |
5620 | 0 | if (PR_SCTP_BUF_ENABLED(tp1->flags)) { |
5621 | 0 | stcb->asoc.sent_queue_cnt_removeable--; |
5622 | 0 | } |
5623 | 0 | } |
5624 | 0 | tp1->sent = SCTP_FORWARD_TSN_SKIP; |
5625 | 0 | if ((tp1->rec.data.rcv_flags & SCTP_DATA_NOT_FRAG) == |
5626 | 0 | SCTP_DATA_NOT_FRAG) { |
5627 | | /* not frag'ed we ae done */ |
5628 | 0 | notdone = 0; |
5629 | 0 | foundeom = 1; |
5630 | 0 | } else if (tp1->rec.data.rcv_flags & SCTP_DATA_LAST_FRAG) { |
5631 | | /* end of frag, we are done */ |
5632 | 0 | notdone = 0; |
5633 | 0 | foundeom = 1; |
5634 | 0 | } else { |
5635 | | /* |
5636 | | * Its a begin or middle piece, we must mark all of |
5637 | | * it |
5638 | | */ |
5639 | 0 | notdone = 1; |
5640 | 0 | tp1 = TAILQ_NEXT(tp1, sctp_next); |
5641 | 0 | } |
5642 | 0 | } while (tp1 && notdone); |
5643 | 0 | if (foundeom == 0) { |
5644 | | /* |
5645 | | * The multi-part message was scattered across the send and |
5646 | | * sent queue. |
5647 | | */ |
5648 | 0 | TAILQ_FOREACH_SAFE(tp1, &stcb->asoc.send_queue, sctp_next, tp2) { |
5649 | 0 | if ((tp1->rec.data.sid != sid) || |
5650 | 0 | (!SCTP_MID_EQ(stcb->asoc.idata_supported, tp1->rec.data.mid, mid))) { |
5651 | 0 | break; |
5652 | 0 | } |
5653 | | /* save to chk in case we have some on stream out |
5654 | | * queue. If so and we have an un-transmitted one |
5655 | | * we don't have to fudge the TSN. |
5656 | | */ |
5657 | 0 | chk = tp1; |
5658 | 0 | ret_sz += tp1->book_size; |
5659 | 0 | sctp_free_bufspace(stcb, &stcb->asoc, tp1, 1); |
5660 | 0 | if (sent) { |
5661 | 0 | sctp_ulp_notify(SCTP_NOTIFY_SENT_DG_FAIL, stcb, 0, tp1, so_locked); |
5662 | 0 | } else { |
5663 | 0 | sctp_ulp_notify(SCTP_NOTIFY_UNSENT_DG_FAIL, stcb, 0, tp1, so_locked); |
5664 | 0 | } |
5665 | 0 | if (tp1->data) { |
5666 | 0 | sctp_m_freem(tp1->data); |
5667 | 0 | tp1->data = NULL; |
5668 | 0 | } |
5669 | | /* No flight involved here book the size to 0 */ |
5670 | 0 | tp1->book_size = 0; |
5671 | 0 | if (tp1->rec.data.rcv_flags & SCTP_DATA_LAST_FRAG) { |
5672 | 0 | foundeom = 1; |
5673 | 0 | } |
5674 | 0 | do_wakeup_routine = 1; |
5675 | 0 | tp1->sent = SCTP_FORWARD_TSN_SKIP; |
5676 | 0 | TAILQ_REMOVE(&stcb->asoc.send_queue, tp1, sctp_next); |
5677 | | /* on to the sent queue so we can wait for it to be passed by. */ |
5678 | 0 | TAILQ_INSERT_TAIL(&stcb->asoc.sent_queue, tp1, |
5679 | 0 | sctp_next); |
5680 | 0 | stcb->asoc.send_queue_cnt--; |
5681 | 0 | stcb->asoc.sent_queue_cnt++; |
5682 | 0 | } |
5683 | 0 | } |
5684 | 0 | if (foundeom == 0) { |
5685 | | /* |
5686 | | * Still no eom found. That means there |
5687 | | * is stuff left on the stream out queue.. yuck. |
5688 | | */ |
5689 | 0 | strq = &stcb->asoc.strmout[sid]; |
5690 | 0 | sp = TAILQ_FIRST(&strq->outqueue); |
5691 | 0 | if (sp != NULL) { |
5692 | 0 | sp->discard_rest = 1; |
5693 | | /* |
5694 | | * We may need to put a chunk on the |
5695 | | * queue that holds the TSN that |
5696 | | * would have been sent with the LAST |
5697 | | * bit. |
5698 | | */ |
5699 | 0 | if (chk == NULL) { |
5700 | | /* Yep, we have to */ |
5701 | 0 | sctp_alloc_a_chunk(stcb, chk); |
5702 | 0 | if (chk == NULL) { |
5703 | | /* we are hosed. All we can |
5704 | | * do is nothing.. which will |
5705 | | * cause an abort if the peer is |
5706 | | * paying attention. |
5707 | | */ |
5708 | 0 | goto oh_well; |
5709 | 0 | } |
5710 | 0 | memset(chk, 0, sizeof(*chk)); |
5711 | 0 | chk->rec.data.rcv_flags = 0; |
5712 | 0 | chk->sent = SCTP_FORWARD_TSN_SKIP; |
5713 | 0 | chk->asoc = &stcb->asoc; |
5714 | 0 | if (stcb->asoc.idata_supported == 0) { |
5715 | 0 | if (sp->sinfo_flags & SCTP_UNORDERED) { |
5716 | 0 | chk->rec.data.mid = 0; |
5717 | 0 | } else { |
5718 | 0 | chk->rec.data.mid = strq->next_mid_ordered; |
5719 | 0 | } |
5720 | 0 | } else { |
5721 | 0 | if (sp->sinfo_flags & SCTP_UNORDERED) { |
5722 | 0 | chk->rec.data.mid = strq->next_mid_unordered; |
5723 | 0 | } else { |
5724 | 0 | chk->rec.data.mid = strq->next_mid_ordered; |
5725 | 0 | } |
5726 | 0 | } |
5727 | 0 | chk->rec.data.sid = sp->sid; |
5728 | 0 | chk->rec.data.ppid = sp->ppid; |
5729 | 0 | chk->rec.data.context = sp->context; |
5730 | 0 | chk->flags = sp->act_flags; |
5731 | 0 | chk->whoTo = NULL; |
5732 | | #if defined(__FreeBSD__) && !defined(__Userspace__) |
5733 | | chk->rec.data.tsn = atomic_fetchadd_int(&stcb->asoc.sending_seq, 1); |
5734 | | #else |
5735 | 0 | chk->rec.data.tsn = stcb->asoc.sending_seq++; |
5736 | 0 | #endif |
5737 | 0 | strq->chunks_on_queues++; |
5738 | 0 | TAILQ_INSERT_TAIL(&stcb->asoc.sent_queue, chk, sctp_next); |
5739 | 0 | stcb->asoc.sent_queue_cnt++; |
5740 | 0 | stcb->asoc.pr_sctp_cnt++; |
5741 | 0 | } |
5742 | 0 | chk->rec.data.rcv_flags |= SCTP_DATA_LAST_FRAG; |
5743 | 0 | if (sp->sinfo_flags & SCTP_UNORDERED) { |
5744 | 0 | chk->rec.data.rcv_flags |= SCTP_DATA_UNORDERED; |
5745 | 0 | } |
5746 | 0 | if (stcb->asoc.idata_supported == 0) { |
5747 | 0 | if ((sp->sinfo_flags & SCTP_UNORDERED) == 0) { |
5748 | 0 | strq->next_mid_ordered++; |
5749 | 0 | } |
5750 | 0 | } else { |
5751 | 0 | if (sp->sinfo_flags & SCTP_UNORDERED) { |
5752 | 0 | strq->next_mid_unordered++; |
5753 | 0 | } else { |
5754 | 0 | strq->next_mid_ordered++; |
5755 | 0 | } |
5756 | 0 | } |
5757 | 0 | oh_well: |
5758 | 0 | if (sp->data) { |
5759 | | /* Pull any data to free up the SB and |
5760 | | * allow sender to "add more" while we |
5761 | | * will throw away :-) |
5762 | | */ |
5763 | 0 | sctp_free_spbufspace(stcb, &stcb->asoc, sp); |
5764 | 0 | ret_sz += sp->length; |
5765 | 0 | do_wakeup_routine = 1; |
5766 | 0 | sp->some_taken = 1; |
5767 | 0 | sctp_m_freem(sp->data); |
5768 | 0 | sp->data = NULL; |
5769 | 0 | sp->tail_mbuf = NULL; |
5770 | 0 | sp->length = 0; |
5771 | 0 | } |
5772 | 0 | } |
5773 | 0 | } |
5774 | 0 | if (do_wakeup_routine) { |
5775 | | #if defined(__APPLE__) && !defined(__Userspace__) |
5776 | | struct socket *so; |
5777 | | |
5778 | | so = SCTP_INP_SO(stcb->sctp_ep); |
5779 | | if (!so_locked) { |
5780 | | atomic_add_int(&stcb->asoc.refcnt, 1); |
5781 | | SCTP_TCB_UNLOCK(stcb); |
5782 | | SCTP_SOCKET_LOCK(so, 1); |
5783 | | SCTP_TCB_LOCK(stcb); |
5784 | | atomic_subtract_int(&stcb->asoc.refcnt, 1); |
5785 | | if (stcb->asoc.state & SCTP_STATE_CLOSED_SOCKET) { |
5786 | | /* assoc was freed while we were unlocked */ |
5787 | | SCTP_SOCKET_UNLOCK(so, 1); |
5788 | | return (ret_sz); |
5789 | | } |
5790 | | } |
5791 | | #endif |
5792 | 0 | sctp_sowwakeup(stcb->sctp_ep, stcb->sctp_socket); |
5793 | | #if defined(__APPLE__) && !defined(__Userspace__) |
5794 | | if (!so_locked) { |
5795 | | SCTP_SOCKET_UNLOCK(so, 1); |
5796 | | } |
5797 | | #endif |
5798 | 0 | } |
5799 | 0 | return (ret_sz); |
5800 | 0 | } |
5801 | | |
5802 | | /* |
5803 | | * checks to see if the given address, sa, is one that is currently known by |
5804 | | * the kernel note: can't distinguish the same address on multiple interfaces |
5805 | | * and doesn't handle multiple addresses with different zone/scope id's note: |
5806 | | * ifa_ifwithaddr() compares the entire sockaddr struct |
5807 | | */ |
5808 | | struct sctp_ifa * |
5809 | | sctp_find_ifa_in_ep(struct sctp_inpcb *inp, struct sockaddr *addr, |
5810 | | int holds_lock) |
5811 | 0 | { |
5812 | 0 | struct sctp_laddr *laddr; |
5813 | |
|
5814 | 0 | if (holds_lock == 0) { |
5815 | 0 | SCTP_INP_RLOCK(inp); |
5816 | 0 | } |
5817 | | |
5818 | 0 | LIST_FOREACH(laddr, &inp->sctp_addr_list, sctp_nxt_addr) { |
5819 | 0 | if (laddr->ifa == NULL) |
5820 | 0 | continue; |
5821 | 0 | if (addr->sa_family != laddr->ifa->address.sa.sa_family) |
5822 | 0 | continue; |
5823 | 0 | #ifdef INET |
5824 | 0 | if (addr->sa_family == AF_INET) { |
5825 | 0 | if (((struct sockaddr_in *)addr)->sin_addr.s_addr == |
5826 | 0 | laddr->ifa->address.sin.sin_addr.s_addr) { |
5827 | | /* found him. */ |
5828 | 0 | break; |
5829 | 0 | } |
5830 | 0 | } |
5831 | 0 | #endif |
5832 | 0 | #ifdef INET6 |
5833 | 0 | if (addr->sa_family == AF_INET6) { |
5834 | 0 | if (SCTP6_ARE_ADDR_EQUAL((struct sockaddr_in6 *)addr, |
5835 | 0 | &laddr->ifa->address.sin6)) { |
5836 | | /* found him. */ |
5837 | 0 | break; |
5838 | 0 | } |
5839 | 0 | } |
5840 | 0 | #endif |
5841 | 0 | #if defined(__Userspace__) |
5842 | 0 | if (addr->sa_family == AF_CONN) { |
5843 | 0 | if (((struct sockaddr_conn *)addr)->sconn_addr == laddr->ifa->address.sconn.sconn_addr) { |
5844 | | /* found him. */ |
5845 | 0 | break; |
5846 | 0 | } |
5847 | 0 | } |
5848 | 0 | #endif |
5849 | 0 | } |
5850 | 0 | if (holds_lock == 0) { |
5851 | 0 | SCTP_INP_RUNLOCK(inp); |
5852 | 0 | } |
5853 | 0 | if (laddr != NULL) { |
5854 | 0 | return (laddr->ifa); |
5855 | 0 | } else { |
5856 | 0 | return (NULL); |
5857 | 0 | } |
5858 | 0 | } |
5859 | | |
5860 | | uint32_t |
5861 | | sctp_get_ifa_hash_val(struct sockaddr *addr) |
5862 | 63.8k | { |
5863 | 63.8k | switch (addr->sa_family) { |
5864 | 0 | #ifdef INET |
5865 | 38.5k | case AF_INET: |
5866 | 38.5k | { |
5867 | 38.5k | struct sockaddr_in *sin; |
5868 | | |
5869 | 38.5k | sin = (struct sockaddr_in *)addr; |
5870 | 38.5k | return (sin->sin_addr.s_addr ^ (sin->sin_addr.s_addr >> 16)); |
5871 | 0 | } |
5872 | 0 | #endif |
5873 | 0 | #ifdef INET6 |
5874 | 4.06k | case AF_INET6: |
5875 | 4.06k | { |
5876 | 4.06k | struct sockaddr_in6 *sin6; |
5877 | 4.06k | uint32_t hash_of_addr; |
5878 | | |
5879 | 4.06k | sin6 = (struct sockaddr_in6 *)addr; |
5880 | 4.06k | #if !defined(_WIN32) && !(defined(__FreeBSD__) && defined(__Userspace__)) && !defined(__APPLE__) |
5881 | 4.06k | hash_of_addr = (sin6->sin6_addr.s6_addr32[0] + |
5882 | 4.06k | sin6->sin6_addr.s6_addr32[1] + |
5883 | 4.06k | sin6->sin6_addr.s6_addr32[2] + |
5884 | 4.06k | sin6->sin6_addr.s6_addr32[3]); |
5885 | | #else |
5886 | | hash_of_addr = (((uint32_t *)&sin6->sin6_addr)[0] + |
5887 | | ((uint32_t *)&sin6->sin6_addr)[1] + |
5888 | | ((uint32_t *)&sin6->sin6_addr)[2] + |
5889 | | ((uint32_t *)&sin6->sin6_addr)[3]); |
5890 | | #endif |
5891 | 4.06k | hash_of_addr = (hash_of_addr ^ (hash_of_addr >> 16)); |
5892 | 4.06k | return (hash_of_addr); |
5893 | 0 | } |
5894 | 0 | #endif |
5895 | 0 | #if defined(__Userspace__) |
5896 | 21.2k | case AF_CONN: |
5897 | 21.2k | { |
5898 | 21.2k | struct sockaddr_conn *sconn; |
5899 | 21.2k | uintptr_t temp; |
5900 | | |
5901 | 21.2k | sconn = (struct sockaddr_conn *)addr; |
5902 | 21.2k | temp = (uintptr_t)sconn->sconn_addr; |
5903 | 21.2k | return ((uint32_t)(temp ^ (temp >> 16))); |
5904 | 0 | } |
5905 | 0 | #endif |
5906 | 0 | default: |
5907 | 0 | break; |
5908 | 63.8k | } |
5909 | 0 | return (0); |
5910 | 63.8k | } |
5911 | | |
5912 | | struct sctp_ifa * |
5913 | | sctp_find_ifa_by_addr(struct sockaddr *addr, uint32_t vrf_id, int holds_lock) |
5914 | 63.8k | { |
5915 | 63.8k | struct sctp_ifa *sctp_ifap; |
5916 | 63.8k | struct sctp_vrf *vrf; |
5917 | 63.8k | struct sctp_ifalist *hash_head; |
5918 | 63.8k | uint32_t hash_of_addr; |
5919 | | |
5920 | 63.8k | if (holds_lock == 0) { |
5921 | 63.8k | SCTP_IPI_ADDR_RLOCK(); |
5922 | 63.8k | } else { |
5923 | 3 | SCTP_IPI_ADDR_LOCK_ASSERT(); |
5924 | 3 | } |
5925 | | |
5926 | 63.8k | vrf = sctp_find_vrf(vrf_id); |
5927 | 63.8k | if (vrf == NULL) { |
5928 | 0 | if (holds_lock == 0) |
5929 | 0 | SCTP_IPI_ADDR_RUNLOCK(); |
5930 | 0 | return (NULL); |
5931 | 0 | } |
5932 | | |
5933 | 63.8k | hash_of_addr = sctp_get_ifa_hash_val(addr); |
5934 | | |
5935 | 63.8k | hash_head = &vrf->vrf_addr_hash[(hash_of_addr & vrf->vrf_addr_hashmark)]; |
5936 | 63.8k | if (hash_head == NULL) { |
5937 | 0 | SCTP_PRINTF("hash_of_addr:%x mask:%x table:%x - ", |
5938 | 0 | hash_of_addr, (uint32_t)vrf->vrf_addr_hashmark, |
5939 | 0 | (uint32_t)(hash_of_addr & vrf->vrf_addr_hashmark)); |
5940 | 0 | sctp_print_address(addr); |
5941 | 0 | SCTP_PRINTF("No such bucket for address\n"); |
5942 | 0 | if (holds_lock == 0) |
5943 | 0 | SCTP_IPI_ADDR_RUNLOCK(); |
5944 | | |
5945 | 0 | return (NULL); |
5946 | 0 | } |
5947 | 63.8k | LIST_FOREACH(sctp_ifap, hash_head, next_bucket) { |
5948 | 34.9k | if (addr->sa_family != sctp_ifap->address.sa.sa_family) |
5949 | 7.43k | continue; |
5950 | 27.5k | #ifdef INET |
5951 | 27.5k | if (addr->sa_family == AF_INET) { |
5952 | 6.28k | if (((struct sockaddr_in *)addr)->sin_addr.s_addr == |
5953 | 6.28k | sctp_ifap->address.sin.sin_addr.s_addr) { |
5954 | | /* found him. */ |
5955 | 0 | break; |
5956 | 0 | } |
5957 | 6.28k | } |
5958 | 27.5k | #endif |
5959 | 27.5k | #ifdef INET6 |
5960 | 27.5k | if (addr->sa_family == AF_INET6) { |
5961 | 0 | if (SCTP6_ARE_ADDR_EQUAL((struct sockaddr_in6 *)addr, |
5962 | 0 | &sctp_ifap->address.sin6)) { |
5963 | | /* found him. */ |
5964 | 0 | break; |
5965 | 0 | } |
5966 | 0 | } |
5967 | 27.5k | #endif |
5968 | 27.5k | #if defined(__Userspace__) |
5969 | 27.5k | if (addr->sa_family == AF_CONN) { |
5970 | 21.2k | if (((struct sockaddr_conn *)addr)->sconn_addr == sctp_ifap->address.sconn.sconn_addr) { |
5971 | | /* found him. */ |
5972 | 21.2k | break; |
5973 | 21.2k | } |
5974 | 21.2k | } |
5975 | 27.5k | #endif |
5976 | 27.5k | } |
5977 | 63.8k | if (holds_lock == 0) |
5978 | 63.8k | SCTP_IPI_ADDR_RUNLOCK(); |
5979 | 63.8k | return (sctp_ifap); |
5980 | 63.8k | } |
5981 | | |
5982 | | static void |
5983 | | sctp_user_rcvd(struct sctp_tcb *stcb, uint32_t *freed_so_far, int hold_rlock, |
5984 | | uint32_t rwnd_req) |
5985 | 17.6k | { |
5986 | | /* User pulled some data, do we need a rwnd update? */ |
5987 | | #if defined(__FreeBSD__) && !defined(__Userspace__) |
5988 | | struct epoch_tracker et; |
5989 | | #endif |
5990 | 17.6k | int r_unlocked = 0; |
5991 | 17.6k | uint32_t dif, rwnd; |
5992 | 17.6k | struct socket *so = NULL; |
5993 | | |
5994 | 17.6k | if (stcb == NULL) |
5995 | 0 | return; |
5996 | | |
5997 | 17.6k | atomic_add_int(&stcb->asoc.refcnt, 1); |
5998 | | |
5999 | 17.6k | if ((SCTP_GET_STATE(stcb) == SCTP_STATE_SHUTDOWN_ACK_SENT) || |
6000 | 17.6k | (stcb->asoc.state & (SCTP_STATE_ABOUT_TO_BE_FREED | SCTP_STATE_SHUTDOWN_RECEIVED))) { |
6001 | | /* Pre-check If we are freeing no update */ |
6002 | 11.5k | goto no_lock; |
6003 | 11.5k | } |
6004 | 6.14k | SCTP_INP_INCR_REF(stcb->sctp_ep); |
6005 | 6.14k | if ((stcb->sctp_ep->sctp_flags & SCTP_PCB_FLAGS_SOCKET_GONE) || |
6006 | 6.14k | (stcb->sctp_ep->sctp_flags & SCTP_PCB_FLAGS_SOCKET_ALLGONE)) { |
6007 | 0 | goto out; |
6008 | 0 | } |
6009 | 6.14k | so = stcb->sctp_socket; |
6010 | 6.14k | if (so == NULL) { |
6011 | 0 | goto out; |
6012 | 0 | } |
6013 | 6.14k | atomic_add_int(&stcb->freed_by_sorcv_sincelast, *freed_so_far); |
6014 | | /* Have you have freed enough to look */ |
6015 | 6.14k | *freed_so_far = 0; |
6016 | | /* Yep, its worth a look and the lock overhead */ |
6017 | | |
6018 | | /* Figure out what the rwnd would be */ |
6019 | 6.14k | rwnd = sctp_calc_rwnd(stcb, &stcb->asoc); |
6020 | 6.14k | if (rwnd >= stcb->asoc.my_last_reported_rwnd) { |
6021 | 5.57k | dif = rwnd - stcb->asoc.my_last_reported_rwnd; |
6022 | 5.57k | } else { |
6023 | 568 | dif = 0; |
6024 | 568 | } |
6025 | 6.14k | if (dif >= rwnd_req) { |
6026 | 1.25k | if (hold_rlock) { |
6027 | 1.25k | SCTP_INP_READ_UNLOCK(stcb->sctp_ep); |
6028 | 1.25k | r_unlocked = 1; |
6029 | 1.25k | } |
6030 | 1.25k | if (stcb->asoc.state & SCTP_STATE_ABOUT_TO_BE_FREED) { |
6031 | | /* |
6032 | | * One last check before we allow the guy possibly |
6033 | | * to get in. There is a race, where the guy has not |
6034 | | * reached the gate. In that case |
6035 | | */ |
6036 | 0 | goto out; |
6037 | 0 | } |
6038 | 1.25k | SCTP_TCB_LOCK(stcb); |
6039 | 1.25k | if (stcb->asoc.state & SCTP_STATE_ABOUT_TO_BE_FREED) { |
6040 | | /* No reports here */ |
6041 | 0 | SCTP_TCB_UNLOCK(stcb); |
6042 | 0 | goto out; |
6043 | 0 | } |
6044 | 1.25k | SCTP_STAT_INCR(sctps_wu_sacks_sent); |
6045 | | #if defined(__FreeBSD__) && !defined(__Userspace__) |
6046 | | NET_EPOCH_ENTER(et); |
6047 | | #endif |
6048 | 1.25k | sctp_send_sack(stcb, SCTP_SO_LOCKED); |
6049 | | |
6050 | 1.25k | sctp_chunk_output(stcb->sctp_ep, stcb, |
6051 | 1.25k | SCTP_OUTPUT_FROM_USR_RCVD, SCTP_SO_LOCKED); |
6052 | | /* make sure no timer is running */ |
6053 | | #if defined(__FreeBSD__) && !defined(__Userspace__) |
6054 | | NET_EPOCH_EXIT(et); |
6055 | | #endif |
6056 | 1.25k | sctp_timer_stop(SCTP_TIMER_TYPE_RECV, stcb->sctp_ep, stcb, NULL, |
6057 | 1.25k | SCTP_FROM_SCTPUTIL + SCTP_LOC_6); |
6058 | 1.25k | SCTP_TCB_UNLOCK(stcb); |
6059 | 4.88k | } else { |
6060 | | /* Update how much we have pending */ |
6061 | 4.88k | stcb->freed_by_sorcv_sincelast = dif; |
6062 | 4.88k | } |
6063 | 6.14k | out: |
6064 | 6.14k | if (so && r_unlocked && hold_rlock) { |
6065 | 1.25k | SCTP_INP_READ_LOCK(stcb->sctp_ep); |
6066 | 1.25k | } |
6067 | | |
6068 | 6.14k | SCTP_INP_DECR_REF(stcb->sctp_ep); |
6069 | 17.6k | no_lock: |
6070 | 17.6k | atomic_subtract_int(&stcb->asoc.refcnt, 1); |
6071 | 17.6k | return; |
6072 | 6.14k | } |
6073 | | |
6074 | | int |
6075 | | sctp_sorecvmsg(struct socket *so, |
6076 | | struct uio *uio, |
6077 | | struct mbuf **mp, |
6078 | | struct sockaddr *from, |
6079 | | int fromlen, |
6080 | | int *msg_flags, |
6081 | | struct sctp_sndrcvinfo *sinfo, |
6082 | | int filling_sinfo) |
6083 | 534k | { |
6084 | | /* |
6085 | | * MSG flags we will look at MSG_DONTWAIT - non-blocking IO. |
6086 | | * MSG_PEEK - Look don't touch :-D (only valid with OUT mbuf copy |
6087 | | * mp=NULL thus uio is the copy method to userland) MSG_WAITALL - ?? |
6088 | | * On the way out we may send out any combination of: |
6089 | | * MSG_NOTIFICATION MSG_EOR |
6090 | | * |
6091 | | */ |
6092 | 534k | struct sctp_inpcb *inp = NULL; |
6093 | 534k | ssize_t my_len = 0; |
6094 | 534k | ssize_t cp_len = 0; |
6095 | 534k | int error = 0; |
6096 | 534k | struct sctp_queued_to_read *control = NULL, *ctl = NULL, *nxt = NULL; |
6097 | 534k | struct mbuf *m = NULL; |
6098 | 534k | struct sctp_tcb *stcb = NULL; |
6099 | 534k | int wakeup_read_socket = 0; |
6100 | 534k | int freecnt_applied = 0; |
6101 | 534k | int out_flags = 0, in_flags = 0; |
6102 | 534k | int block_allowed = 1; |
6103 | 534k | uint32_t freed_so_far = 0; |
6104 | 534k | ssize_t copied_so_far = 0; |
6105 | 534k | int in_eeor_mode = 0; |
6106 | 534k | int no_rcv_needed = 0; |
6107 | 534k | uint32_t rwnd_req = 0; |
6108 | 534k | int hold_sblock = 0; |
6109 | 534k | int hold_rlock = 0; |
6110 | 534k | ssize_t slen = 0; |
6111 | 534k | uint32_t held_length = 0; |
6112 | | #if defined(__FreeBSD__) && !defined(__Userspace__) |
6113 | | int sockbuf_lock = 0; |
6114 | | #endif |
6115 | | |
6116 | 534k | if (uio == NULL) { |
6117 | 0 | SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTPUTIL, EINVAL); |
6118 | 0 | return (EINVAL); |
6119 | 0 | } |
6120 | | |
6121 | 534k | if (msg_flags) { |
6122 | 534k | in_flags = *msg_flags; |
6123 | 534k | if (in_flags & MSG_PEEK) |
6124 | 534k | SCTP_STAT_INCR(sctps_read_peeks); |
6125 | 534k | } else { |
6126 | 0 | in_flags = 0; |
6127 | 0 | } |
6128 | | #if defined(__APPLE__) && !defined(__Userspace__) |
6129 | | #if defined(APPLE_LEOPARD) |
6130 | | slen = uio->uio_resid; |
6131 | | #else |
6132 | | slen = uio_resid(uio); |
6133 | | #endif |
6134 | | #else |
6135 | 534k | slen = uio->uio_resid; |
6136 | 534k | #endif |
6137 | | |
6138 | | /* Pull in and set up our int flags */ |
6139 | 534k | if (in_flags & MSG_OOB) { |
6140 | | /* Out of band's NOT supported */ |
6141 | 0 | return (EOPNOTSUPP); |
6142 | 0 | } |
6143 | 534k | if ((in_flags & MSG_PEEK) && (mp != NULL)) { |
6144 | 0 | SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTPUTIL, EINVAL); |
6145 | 0 | return (EINVAL); |
6146 | 0 | } |
6147 | 534k | if ((in_flags & (MSG_DONTWAIT |
6148 | | #if defined(__FreeBSD__) && !defined(__Userspace__) |
6149 | | | MSG_NBIO |
6150 | | #endif |
6151 | 534k | )) || |
6152 | 534k | SCTP_SO_IS_NBIO(so)) { |
6153 | 534k | block_allowed = 0; |
6154 | 534k | } |
6155 | | /* setup the endpoint */ |
6156 | 534k | inp = (struct sctp_inpcb *)so->so_pcb; |
6157 | 534k | if (inp == NULL) { |
6158 | 0 | SCTP_LTRACE_ERR_RET(NULL, NULL, NULL, SCTP_FROM_SCTPUTIL, EFAULT); |
6159 | 0 | return (EFAULT); |
6160 | 0 | } |
6161 | 534k | rwnd_req = (SCTP_SB_LIMIT_RCV(so) >> SCTP_RWND_HIWAT_SHIFT); |
6162 | | /* Must be at least a MTU's worth */ |
6163 | 534k | if (rwnd_req < SCTP_MIN_RWND) |
6164 | 0 | rwnd_req = SCTP_MIN_RWND; |
6165 | 534k | in_eeor_mode = sctp_is_feature_on(inp, SCTP_PCB_FLAGS_EXPLICIT_EOR); |
6166 | 534k | if (SCTP_BASE_SYSCTL(sctp_logging_level) & SCTP_RECV_RWND_LOGGING_ENABLE) { |
6167 | | #if defined(__APPLE__) && !defined(__Userspace__) |
6168 | | #if defined(APPLE_LEOPARD) |
6169 | | sctp_misc_ints(SCTP_SORECV_ENTER, |
6170 | | rwnd_req, in_eeor_mode, SCTP_SBAVAIL(&so->so_rcv), uio->uio_resid); |
6171 | | #else |
6172 | | sctp_misc_ints(SCTP_SORECV_ENTER, |
6173 | | rwnd_req, in_eeor_mode, SCTP_SBAVAIL(&so->so_rcv), uio_resid(uio)); |
6174 | | #endif |
6175 | | #else |
6176 | 0 | sctp_misc_ints(SCTP_SORECV_ENTER, |
6177 | 0 | rwnd_req, in_eeor_mode, SCTP_SBAVAIL(&so->so_rcv), (uint32_t)uio->uio_resid); |
6178 | 0 | #endif |
6179 | 0 | } |
6180 | 534k | #if defined(__Userspace__) |
6181 | 534k | SOCKBUF_LOCK(&so->so_rcv); |
6182 | 534k | hold_sblock = 1; |
6183 | 534k | #endif |
6184 | 534k | if (SCTP_BASE_SYSCTL(sctp_logging_level) &SCTP_RECV_RWND_LOGGING_ENABLE) { |
6185 | | #if defined(__APPLE__) && !defined(__Userspace__) |
6186 | | #if defined(APPLE_LEOPARD) |
6187 | | sctp_misc_ints(SCTP_SORECV_ENTERPL, |
6188 | | rwnd_req, block_allowed, SCTP_SBAVAIL(&so->so_rcv), uio->uio_resid); |
6189 | | #else |
6190 | | sctp_misc_ints(SCTP_SORECV_ENTERPL, |
6191 | | rwnd_req, block_allowed, SCTP_SBAVAIL(&so->so_rcv), uio_resid(uio)); |
6192 | | #endif |
6193 | | #else |
6194 | 0 | sctp_misc_ints(SCTP_SORECV_ENTERPL, |
6195 | 0 | rwnd_req, block_allowed, SCTP_SBAVAIL(&so->so_rcv), (uint32_t)uio->uio_resid); |
6196 | 0 | #endif |
6197 | 0 | } |
6198 | | |
6199 | | #if defined(__APPLE__) && !defined(__Userspace__) |
6200 | | error = sblock(&so->so_rcv, SBLOCKWAIT(in_flags)); |
6201 | | #endif |
6202 | | #if defined(__FreeBSD__) && !defined(__Userspace__) |
6203 | | error = SOCK_IO_RECV_LOCK(so, SBLOCKWAIT(in_flags)); |
6204 | | #endif |
6205 | 534k | if (error) { |
6206 | 0 | goto release_unlocked; |
6207 | 0 | } |
6208 | | #if defined(__FreeBSD__) && !defined(__Userspace__) |
6209 | | sockbuf_lock = 1; |
6210 | | #endif |
6211 | 534k | restart: |
6212 | 534k | #if defined(__Userspace__) |
6213 | 534k | if (hold_sblock == 0) { |
6214 | 0 | SOCKBUF_LOCK(&so->so_rcv); |
6215 | 0 | hold_sblock = 1; |
6216 | 0 | } |
6217 | 534k | #endif |
6218 | | #if defined(__APPLE__) && !defined(__Userspace__) |
6219 | | sbunlock(&so->so_rcv, 1); |
6220 | | #endif |
6221 | | |
6222 | 534k | restart_nosblocks: |
6223 | 534k | if (hold_sblock == 0) { |
6224 | 0 | SOCKBUF_LOCK(&so->so_rcv); |
6225 | 0 | hold_sblock = 1; |
6226 | 0 | } |
6227 | 534k | if ((inp->sctp_flags & SCTP_PCB_FLAGS_SOCKET_GONE) || |
6228 | 534k | (inp->sctp_flags & SCTP_PCB_FLAGS_SOCKET_ALLGONE)) { |
6229 | 0 | goto out; |
6230 | 0 | } |
6231 | | #if (defined(__FreeBSD__) || defined(_WIN32)) && !defined(__Userspace__) |
6232 | | if ((so->so_rcv.sb_state & SBS_CANTRCVMORE) && SCTP_SBAVAIL(&so->so_rcv) == 0) { |
6233 | | #else |
6234 | 534k | if ((so->so_state & SS_CANTRCVMORE) && SCTP_SBAVAIL(&so->so_rcv) == 0) { |
6235 | 0 | #endif |
6236 | 0 | if (so->so_error) { |
6237 | 0 | error = so->so_error; |
6238 | 0 | if ((in_flags & MSG_PEEK) == 0) |
6239 | 0 | so->so_error = 0; |
6240 | 0 | goto out; |
6241 | 0 | } else { |
6242 | 0 | if (SCTP_SBAVAIL(&so->so_rcv) == 0) { |
6243 | | /* indicate EOF */ |
6244 | 0 | error = 0; |
6245 | 0 | goto out; |
6246 | 0 | } |
6247 | 0 | } |
6248 | 0 | } |
6249 | 534k | if (SCTP_SBAVAIL(&so->so_rcv) <= held_length) { |
6250 | 1.70k | if (so->so_error) { |
6251 | 1.69k | error = so->so_error; |
6252 | 1.69k | if ((in_flags & MSG_PEEK) == 0) { |
6253 | 1.69k | so->so_error = 0; |
6254 | 1.69k | } |
6255 | 1.69k | goto out; |
6256 | 1.69k | } |
6257 | 1 | if ((SCTP_SBAVAIL(&so->so_rcv) == 0) && |
6258 | 1 | ((inp->sctp_flags & SCTP_PCB_FLAGS_TCPTYPE) || |
6259 | 1 | (inp->sctp_flags & SCTP_PCB_FLAGS_IN_TCPPOOL))) { |
6260 | 1 | if ((inp->sctp_flags & SCTP_PCB_FLAGS_CONNECTED) == 0) { |
6261 | | /* For active open side clear flags for re-use |
6262 | | * passive open is blocked by connect. |
6263 | | */ |
6264 | 1 | if (inp->sctp_flags & SCTP_PCB_FLAGS_WAS_ABORTED) { |
6265 | | /* You were aborted, passive side always hits here */ |
6266 | 0 | SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTPUTIL, ECONNRESET); |
6267 | 0 | error = ECONNRESET; |
6268 | 0 | } |
6269 | 1 | so->so_state &= ~(SS_ISCONNECTING | |
6270 | 1 | SS_ISDISCONNECTING | |
6271 | 1 | #if !(defined(__FreeBSD__) && !defined(__Userspace__)) |
6272 | 1 | SS_ISCONFIRMING | |
6273 | 1 | #endif |
6274 | 1 | SS_ISCONNECTED); |
6275 | 1 | if (error == 0) { |
6276 | 1 | if ((inp->sctp_flags & SCTP_PCB_FLAGS_WAS_CONNECTED) == 0) { |
6277 | 0 | SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTPUTIL, ENOTCONN); |
6278 | 0 | error = ENOTCONN; |
6279 | 0 | } |
6280 | 1 | } |
6281 | 1 | goto out; |
6282 | 1 | } |
6283 | 1 | } |
6284 | 0 | if (block_allowed) { |
6285 | | #if defined(__FreeBSD__) && !defined(__Userspace__) |
6286 | | error = sbwait(so, SO_RCV); |
6287 | | #else |
6288 | 0 | error = sbwait(&so->so_rcv); |
6289 | 0 | #endif |
6290 | 0 | if (error) { |
6291 | 0 | goto out; |
6292 | 0 | } |
6293 | 0 | held_length = 0; |
6294 | 0 | goto restart_nosblocks; |
6295 | 0 | } else { |
6296 | 0 | SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTPUTIL, EWOULDBLOCK); |
6297 | 0 | error = EWOULDBLOCK; |
6298 | 0 | goto out; |
6299 | 0 | } |
6300 | 0 | } |
6301 | 532k | if (hold_sblock == 1) { |
6302 | 532k | SOCKBUF_UNLOCK(&so->so_rcv); |
6303 | 532k | hold_sblock = 0; |
6304 | 532k | } |
6305 | | #if defined(__APPLE__) && !defined(__Userspace__) |
6306 | | error = sblock(&so->so_rcv, SBLOCKWAIT(in_flags)); |
6307 | | #endif |
6308 | | /* we possibly have data we can read */ |
6309 | | /*sa_ignore FREED_MEMORY*/ |
6310 | 532k | control = TAILQ_FIRST(&inp->read_queue); |
6311 | 532k | if (control == NULL) { |
6312 | | /* This could be happening since |
6313 | | * the appender did the increment but as not |
6314 | | * yet did the tailq insert onto the read_queue |
6315 | | */ |
6316 | 0 | if (hold_rlock == 0) { |
6317 | 0 | SCTP_INP_READ_LOCK(inp); |
6318 | 0 | } |
6319 | 0 | control = TAILQ_FIRST(&inp->read_queue); |
6320 | 0 | if ((control == NULL) && (SCTP_SBAVAIL(&so->so_rcv) > 0)) { |
6321 | 0 | #ifdef INVARIANTS |
6322 | 0 | panic("Huh, its non zero and nothing on control?"); |
6323 | 0 | #endif |
6324 | 0 | SCTP_SB_CLEAR(so->so_rcv); |
6325 | 0 | } |
6326 | 0 | SCTP_INP_READ_UNLOCK(inp); |
6327 | 0 | hold_rlock = 0; |
6328 | 0 | goto restart; |
6329 | 0 | } |
6330 | | |
6331 | 532k | if ((control->length == 0) && |
6332 | 532k | (control->do_not_ref_stcb)) { |
6333 | | /* Clean up code for freeing assoc that left behind a pdapi.. |
6334 | | * maybe a peer in EEOR that just closed after sending and |
6335 | | * never indicated a EOR. |
6336 | | */ |
6337 | 0 | if (hold_rlock == 0) { |
6338 | 0 | hold_rlock = 1; |
6339 | 0 | SCTP_INP_READ_LOCK(inp); |
6340 | 0 | } |
6341 | 0 | control->held_length = 0; |
6342 | 0 | if (control->data) { |
6343 | | /* Hmm there is data here .. fix */ |
6344 | 0 | struct mbuf *m_tmp; |
6345 | 0 | int cnt = 0; |
6346 | 0 | m_tmp = control->data; |
6347 | 0 | while (m_tmp) { |
6348 | 0 | cnt += SCTP_BUF_LEN(m_tmp); |
6349 | 0 | if (SCTP_BUF_NEXT(m_tmp) == NULL) { |
6350 | 0 | control->tail_mbuf = m_tmp; |
6351 | 0 | control->end_added = 1; |
6352 | 0 | } |
6353 | 0 | m_tmp = SCTP_BUF_NEXT(m_tmp); |
6354 | 0 | } |
6355 | 0 | control->length = cnt; |
6356 | 0 | } else { |
6357 | | /* remove it */ |
6358 | 0 | TAILQ_REMOVE(&inp->read_queue, control, next); |
6359 | | /* Add back any hidden data */ |
6360 | 0 | sctp_free_remote_addr(control->whoFrom); |
6361 | 0 | sctp_free_a_readq(stcb, control); |
6362 | 0 | } |
6363 | 0 | if (hold_rlock) { |
6364 | 0 | hold_rlock = 0; |
6365 | 0 | SCTP_INP_READ_UNLOCK(inp); |
6366 | 0 | } |
6367 | 0 | goto restart; |
6368 | 0 | } |
6369 | 532k | if ((control->length == 0) && |
6370 | 532k | (control->end_added == 1)) { |
6371 | | /* Do we also need to check for (control->pdapi_aborted == 1)? */ |
6372 | 0 | if (hold_rlock == 0) { |
6373 | 0 | hold_rlock = 1; |
6374 | 0 | SCTP_INP_READ_LOCK(inp); |
6375 | 0 | } |
6376 | 0 | TAILQ_REMOVE(&inp->read_queue, control, next); |
6377 | 0 | if (control->data) { |
6378 | 0 | #ifdef INVARIANTS |
6379 | 0 | panic("control->data not null but control->length == 0"); |
6380 | | #else |
6381 | | SCTP_PRINTF("Strange, data left in the control buffer. Cleaning up.\n"); |
6382 | | sctp_m_freem(control->data); |
6383 | | control->data = NULL; |
6384 | | #endif |
6385 | 0 | } |
6386 | 0 | if (control->aux_data) { |
6387 | 0 | sctp_m_free (control->aux_data); |
6388 | 0 | control->aux_data = NULL; |
6389 | 0 | } |
6390 | 0 | #ifdef INVARIANTS |
6391 | 0 | if (control->on_strm_q) { |
6392 | 0 | panic("About to free ctl:%p so:%p and its in %d", |
6393 | 0 | control, so, control->on_strm_q); |
6394 | 0 | } |
6395 | 0 | #endif |
6396 | 0 | sctp_free_remote_addr(control->whoFrom); |
6397 | 0 | sctp_free_a_readq(stcb, control); |
6398 | 0 | if (hold_rlock) { |
6399 | 0 | hold_rlock = 0; |
6400 | 0 | SCTP_INP_READ_UNLOCK(inp); |
6401 | 0 | } |
6402 | 0 | goto restart; |
6403 | 0 | } |
6404 | 532k | if (control->length == 0) { |
6405 | 0 | if ((sctp_is_feature_on(inp, SCTP_PCB_FLAGS_FRAG_INTERLEAVE)) && |
6406 | 0 | (filling_sinfo)) { |
6407 | | /* find a more suitable one then this */ |
6408 | 0 | ctl = TAILQ_NEXT(control, next); |
6409 | 0 | while (ctl) { |
6410 | 0 | if ((ctl->stcb != control->stcb) && (ctl->length) && |
6411 | 0 | (ctl->some_taken || |
6412 | 0 | (ctl->spec_flags & M_NOTIFICATION) || |
6413 | 0 | ((ctl->do_not_ref_stcb == 0) && |
6414 | 0 | (ctl->stcb->asoc.strmin[ctl->sinfo_stream].delivery_started == 0))) |
6415 | 0 | ) { |
6416 | | /*- |
6417 | | * If we have a different TCB next, and there is data |
6418 | | * present. If we have already taken some (pdapi), OR we can |
6419 | | * ref the tcb and no delivery as started on this stream, we |
6420 | | * take it. Note we allow a notification on a different |
6421 | | * assoc to be delivered.. |
6422 | | */ |
6423 | 0 | control = ctl; |
6424 | 0 | goto found_one; |
6425 | 0 | } else if ((sctp_is_feature_on(inp, SCTP_PCB_FLAGS_INTERLEAVE_STRMS)) && |
6426 | 0 | (ctl->length) && |
6427 | 0 | ((ctl->some_taken) || |
6428 | 0 | ((ctl->do_not_ref_stcb == 0) && |
6429 | 0 | ((ctl->spec_flags & M_NOTIFICATION) == 0) && |
6430 | 0 | (ctl->stcb->asoc.strmin[ctl->sinfo_stream].delivery_started == 0)))) { |
6431 | | /*- |
6432 | | * If we have the same tcb, and there is data present, and we |
6433 | | * have the strm interleave feature present. Then if we have |
6434 | | * taken some (pdapi) or we can refer to tht tcb AND we have |
6435 | | * not started a delivery for this stream, we can take it. |
6436 | | * Note we do NOT allow a notification on the same assoc to |
6437 | | * be delivered. |
6438 | | */ |
6439 | 0 | control = ctl; |
6440 | 0 | goto found_one; |
6441 | 0 | } |
6442 | 0 | ctl = TAILQ_NEXT(ctl, next); |
6443 | 0 | } |
6444 | 0 | } |
6445 | | /* |
6446 | | * if we reach here, not suitable replacement is available |
6447 | | * <or> fragment interleave is NOT on. So stuff the sb_cc |
6448 | | * into the our held count, and its time to sleep again. |
6449 | | */ |
6450 | 0 | held_length = SCTP_SBAVAIL(&so->so_rcv); |
6451 | 0 | control->held_length = SCTP_SBAVAIL(&so->so_rcv); |
6452 | 0 | goto restart; |
6453 | 0 | } |
6454 | | /* Clear the held length since there is something to read */ |
6455 | 532k | control->held_length = 0; |
6456 | 532k | found_one: |
6457 | | /* |
6458 | | * If we reach here, control has a some data for us to read off. |
6459 | | * Note that stcb COULD be NULL. |
6460 | | */ |
6461 | 532k | if (hold_rlock == 0) { |
6462 | 532k | hold_rlock = 1; |
6463 | 532k | SCTP_INP_READ_LOCK(inp); |
6464 | 532k | } |
6465 | 532k | control->some_taken++; |
6466 | 532k | stcb = control->stcb; |
6467 | 532k | if (stcb) { |
6468 | 532k | if ((control->do_not_ref_stcb == 0) && |
6469 | 532k | (stcb->asoc.state & SCTP_STATE_ABOUT_TO_BE_FREED)) { |
6470 | 0 | if (freecnt_applied == 0) |
6471 | 0 | stcb = NULL; |
6472 | 532k | } else if (control->do_not_ref_stcb == 0) { |
6473 | | /* you can't free it on me please */ |
6474 | | /* |
6475 | | * The lock on the socket buffer protects us so the |
6476 | | * free code will stop. But since we used the socketbuf |
6477 | | * lock and the sender uses the tcb_lock to increment, |
6478 | | * we need to use the atomic add to the refcnt |
6479 | | */ |
6480 | 390k | if (freecnt_applied) { |
6481 | 0 | #ifdef INVARIANTS |
6482 | 0 | panic("refcnt already incremented"); |
6483 | | #else |
6484 | | SCTP_PRINTF("refcnt already incremented?\n"); |
6485 | | #endif |
6486 | 390k | } else { |
6487 | 390k | atomic_add_int(&stcb->asoc.refcnt, 1); |
6488 | 390k | freecnt_applied = 1; |
6489 | 390k | } |
6490 | | /* |
6491 | | * Setup to remember how much we have not yet told |
6492 | | * the peer our rwnd has opened up. Note we grab |
6493 | | * the value from the tcb from last time. |
6494 | | * Note too that sack sending clears this when a sack |
6495 | | * is sent, which is fine. Once we hit the rwnd_req, |
6496 | | * we then will go to the sctp_user_rcvd() that will |
6497 | | * not lock until it KNOWs it MUST send a WUP-SACK. |
6498 | | */ |
6499 | 390k | freed_so_far = (uint32_t)stcb->freed_by_sorcv_sincelast; |
6500 | 390k | stcb->freed_by_sorcv_sincelast = 0; |
6501 | 390k | } |
6502 | 532k | } |
6503 | 532k | if (stcb && |
6504 | 532k | ((control->spec_flags & M_NOTIFICATION) == 0) && |
6505 | 532k | control->do_not_ref_stcb == 0) { |
6506 | 827 | stcb->asoc.strmin[control->sinfo_stream].delivery_started = 1; |
6507 | 827 | } |
6508 | | |
6509 | | /* First lets get off the sinfo and sockaddr info */ |
6510 | 532k | if ((sinfo != NULL) && (filling_sinfo != 0)) { |
6511 | 532k | sinfo->sinfo_stream = control->sinfo_stream; |
6512 | 532k | sinfo->sinfo_ssn = (uint16_t)control->mid; |
6513 | 532k | sinfo->sinfo_flags = control->sinfo_flags; |
6514 | 532k | sinfo->sinfo_ppid = control->sinfo_ppid; |
6515 | 532k | sinfo->sinfo_context =control->sinfo_context; |
6516 | 532k | sinfo->sinfo_timetolive = control->sinfo_timetolive; |
6517 | 532k | sinfo->sinfo_tsn = control->sinfo_tsn; |
6518 | 532k | sinfo->sinfo_cumtsn = control->sinfo_cumtsn; |
6519 | 532k | sinfo->sinfo_assoc_id = control->sinfo_assoc_id; |
6520 | 532k | nxt = TAILQ_NEXT(control, next); |
6521 | 532k | if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_EXT_RCVINFO) || |
6522 | 532k | sctp_is_feature_on(inp, SCTP_PCB_FLAGS_RECVNXTINFO)) { |
6523 | 532k | struct sctp_extrcvinfo *s_extra; |
6524 | 532k | s_extra = (struct sctp_extrcvinfo *)sinfo; |
6525 | 532k | if ((nxt) && |
6526 | 532k | (nxt->length)) { |
6527 | 523k | s_extra->serinfo_next_flags = SCTP_NEXT_MSG_AVAIL; |
6528 | 523k | if (nxt->sinfo_flags & SCTP_UNORDERED) { |
6529 | 472 | s_extra->serinfo_next_flags |= SCTP_NEXT_MSG_IS_UNORDERED; |
6530 | 472 | } |
6531 | 523k | if (nxt->spec_flags & M_NOTIFICATION) { |
6532 | 522k | s_extra->serinfo_next_flags |= SCTP_NEXT_MSG_IS_NOTIFICATION; |
6533 | 522k | } |
6534 | 523k | s_extra->serinfo_next_aid = nxt->sinfo_assoc_id; |
6535 | 523k | s_extra->serinfo_next_length = nxt->length; |
6536 | 523k | s_extra->serinfo_next_ppid = nxt->sinfo_ppid; |
6537 | 523k | s_extra->serinfo_next_stream = nxt->sinfo_stream; |
6538 | 523k | if (nxt->tail_mbuf != NULL) { |
6539 | 523k | if (nxt->end_added) { |
6540 | 523k | s_extra->serinfo_next_flags |= SCTP_NEXT_MSG_ISCOMPLETE; |
6541 | 523k | } |
6542 | 523k | } |
6543 | 523k | } else { |
6544 | | /* we explicitly 0 this, since the memcpy got |
6545 | | * some other things beyond the older sinfo_ |
6546 | | * that is on the control's structure :-D |
6547 | | */ |
6548 | 9.33k | nxt = NULL; |
6549 | 9.33k | s_extra->serinfo_next_flags = SCTP_NO_NEXT_MSG; |
6550 | 9.33k | s_extra->serinfo_next_aid = 0; |
6551 | 9.33k | s_extra->serinfo_next_length = 0; |
6552 | 9.33k | s_extra->serinfo_next_ppid = 0; |
6553 | 9.33k | s_extra->serinfo_next_stream = 0; |
6554 | 9.33k | } |
6555 | 532k | } |
6556 | | /* |
6557 | | * update off the real current cum-ack, if we have an stcb. |
6558 | | */ |
6559 | 532k | if ((control->do_not_ref_stcb == 0) && stcb) |
6560 | 390k | sinfo->sinfo_cumtsn = stcb->asoc.cumulative_tsn; |
6561 | | /* |
6562 | | * mask off the high bits, we keep the actual chunk bits in |
6563 | | * there. |
6564 | | */ |
6565 | 532k | sinfo->sinfo_flags &= 0x00ff; |
6566 | 532k | if ((control->sinfo_flags >> 8) & SCTP_DATA_UNORDERED) { |
6567 | 784 | sinfo->sinfo_flags |= SCTP_UNORDERED; |
6568 | 784 | } |
6569 | 532k | } |
6570 | | #ifdef SCTP_ASOCLOG_OF_TSNS |
6571 | | { |
6572 | | int index, newindex; |
6573 | | struct sctp_pcbtsn_rlog *entry; |
6574 | | do { |
6575 | | index = inp->readlog_index; |
6576 | | newindex = index + 1; |
6577 | | if (newindex >= SCTP_READ_LOG_SIZE) { |
6578 | | newindex = 0; |
6579 | | } |
6580 | | } while (atomic_cmpset_int(&inp->readlog_index, index, newindex) == 0); |
6581 | | entry = &inp->readlog[index]; |
6582 | | entry->vtag = control->sinfo_assoc_id; |
6583 | | entry->strm = control->sinfo_stream; |
6584 | | entry->seq = (uint16_t)control->mid; |
6585 | | entry->sz = control->length; |
6586 | | entry->flgs = control->sinfo_flags; |
6587 | | } |
6588 | | #endif |
6589 | 532k | if ((fromlen > 0) && (from != NULL)) { |
6590 | 532k | union sctp_sockstore store; |
6591 | 532k | size_t len; |
6592 | | |
6593 | 532k | switch (control->whoFrom->ro._l_addr.sa.sa_family) { |
6594 | 0 | #ifdef INET6 |
6595 | 8.52k | case AF_INET6: |
6596 | 8.52k | len = sizeof(struct sockaddr_in6); |
6597 | 8.52k | store.sin6 = control->whoFrom->ro._l_addr.sin6; |
6598 | 8.52k | store.sin6.sin6_port = control->port_from; |
6599 | 8.52k | break; |
6600 | 0 | #endif |
6601 | 0 | #ifdef INET |
6602 | 297 | case AF_INET: |
6603 | 297 | #ifdef INET6 |
6604 | 297 | if (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_NEEDS_MAPPED_V4)) { |
6605 | 0 | len = sizeof(struct sockaddr_in6); |
6606 | 0 | in6_sin_2_v4mapsin6(&control->whoFrom->ro._l_addr.sin, |
6607 | 0 | &store.sin6); |
6608 | 0 | store.sin6.sin6_port = control->port_from; |
6609 | 297 | } else { |
6610 | 297 | len = sizeof(struct sockaddr_in); |
6611 | 297 | store.sin = control->whoFrom->ro._l_addr.sin; |
6612 | 297 | store.sin.sin_port = control->port_from; |
6613 | 297 | } |
6614 | | #else |
6615 | | len = sizeof(struct sockaddr_in); |
6616 | | store.sin = control->whoFrom->ro._l_addr.sin; |
6617 | | store.sin.sin_port = control->port_from; |
6618 | | #endif |
6619 | 297 | break; |
6620 | 0 | #endif |
6621 | 0 | #if defined(__Userspace__) |
6622 | 524k | case AF_CONN: |
6623 | 524k | len = sizeof(struct sockaddr_conn); |
6624 | 524k | store.sconn = control->whoFrom->ro._l_addr.sconn; |
6625 | 524k | store.sconn.sconn_port = control->port_from; |
6626 | 524k | break; |
6627 | 0 | #endif |
6628 | 0 | default: |
6629 | 0 | len = 0; |
6630 | 0 | break; |
6631 | 532k | } |
6632 | 532k | memcpy(from, &store, min((size_t)fromlen, len)); |
6633 | | #if defined(SCTP_EMBEDDED_V6_SCOPE) |
6634 | | #ifdef INET6 |
6635 | | { |
6636 | | struct sockaddr_in6 lsa6, *from6; |
6637 | | |
6638 | | from6 = (struct sockaddr_in6 *)from; |
6639 | | sctp_recover_scope_mac(from6, (&lsa6)); |
6640 | | } |
6641 | | #endif |
6642 | | #endif |
6643 | 532k | } |
6644 | 532k | if (hold_rlock) { |
6645 | 532k | SCTP_INP_READ_UNLOCK(inp); |
6646 | 532k | hold_rlock = 0; |
6647 | 532k | } |
6648 | 532k | if (hold_sblock) { |
6649 | 0 | SOCKBUF_UNLOCK(&so->so_rcv); |
6650 | 0 | hold_sblock = 0; |
6651 | 0 | } |
6652 | | /* now copy out what data we can */ |
6653 | 532k | if (mp == NULL) { |
6654 | | /* copy out each mbuf in the chain up to length */ |
6655 | 532k | get_more_data: |
6656 | 532k | m = control->data; |
6657 | 534k | while (m) { |
6658 | | /* Move out all we can */ |
6659 | | #if defined(__APPLE__) && !defined(__Userspace__) |
6660 | | #if defined(APPLE_LEOPARD) |
6661 | | cp_len = uio->uio_resid; |
6662 | | #else |
6663 | | cp_len = uio_resid(uio); |
6664 | | #endif |
6665 | | #else |
6666 | 534k | cp_len = uio->uio_resid; |
6667 | 534k | #endif |
6668 | 534k | my_len = SCTP_BUF_LEN(m); |
6669 | 534k | if (cp_len > my_len) { |
6670 | | /* not enough in this buf */ |
6671 | 534k | cp_len = my_len; |
6672 | 534k | } |
6673 | 534k | if (hold_rlock) { |
6674 | 1.85k | SCTP_INP_READ_UNLOCK(inp); |
6675 | 1.85k | hold_rlock = 0; |
6676 | 1.85k | } |
6677 | | #if defined(__APPLE__) && !defined(__Userspace__) |
6678 | | SCTP_SOCKET_UNLOCK(so, 0); |
6679 | | #endif |
6680 | 534k | if (cp_len > 0) |
6681 | 534k | error = uiomove(mtod(m, char *), (int)cp_len, uio); |
6682 | | #if defined(__APPLE__) && !defined(__Userspace__) |
6683 | | SCTP_SOCKET_LOCK(so, 0); |
6684 | | #endif |
6685 | | /* re-read */ |
6686 | 534k | if (inp->sctp_flags & SCTP_PCB_FLAGS_SOCKET_GONE) { |
6687 | 0 | goto release; |
6688 | 0 | } |
6689 | | |
6690 | 534k | if ((control->do_not_ref_stcb == 0) && stcb && |
6691 | 534k | stcb->asoc.state & SCTP_STATE_ABOUT_TO_BE_FREED) { |
6692 | 0 | no_rcv_needed = 1; |
6693 | 0 | } |
6694 | 534k | if (error) { |
6695 | | /* error we are out of here */ |
6696 | 0 | goto release; |
6697 | 0 | } |
6698 | 534k | SCTP_INP_READ_LOCK(inp); |
6699 | 534k | hold_rlock = 1; |
6700 | 534k | if (cp_len == SCTP_BUF_LEN(m)) { |
6701 | 534k | if ((SCTP_BUF_NEXT(m)== NULL) && |
6702 | 534k | (control->end_added)) { |
6703 | 532k | out_flags |= MSG_EOR; |
6704 | 532k | if ((control->do_not_ref_stcb == 0) && |
6705 | 532k | (control->stcb != NULL) && |
6706 | 532k | ((control->spec_flags & M_NOTIFICATION) == 0)) |
6707 | 716 | control->stcb->asoc.strmin[control->sinfo_stream].delivery_started = 0; |
6708 | 532k | } |
6709 | 534k | if (control->spec_flags & M_NOTIFICATION) { |
6710 | 532k | out_flags |= MSG_NOTIFICATION; |
6711 | 532k | } |
6712 | | /* we ate up the mbuf */ |
6713 | 534k | if (in_flags & MSG_PEEK) { |
6714 | | /* just looking */ |
6715 | 0 | m = SCTP_BUF_NEXT(m); |
6716 | 0 | copied_so_far += cp_len; |
6717 | 534k | } else { |
6718 | | /* dispose of the mbuf */ |
6719 | 534k | if (SCTP_BASE_SYSCTL(sctp_logging_level) & SCTP_SB_LOGGING_ENABLE) { |
6720 | 0 | sctp_sblog(&so->so_rcv, |
6721 | 0 | control->do_not_ref_stcb?NULL:stcb, SCTP_LOG_SBFREE, SCTP_BUF_LEN(m)); |
6722 | 0 | } |
6723 | 1.06M | sctp_sbfree(control, stcb, &so->so_rcv, m); |
6724 | 534k | if (SCTP_BASE_SYSCTL(sctp_logging_level) & SCTP_SB_LOGGING_ENABLE) { |
6725 | 0 | sctp_sblog(&so->so_rcv, |
6726 | 0 | control->do_not_ref_stcb?NULL:stcb, SCTP_LOG_SBRESULT, 0); |
6727 | 0 | } |
6728 | 534k | copied_so_far += cp_len; |
6729 | 534k | freed_so_far += (uint32_t)cp_len; |
6730 | 534k | freed_so_far += MSIZE; |
6731 | 534k | atomic_subtract_int(&control->length, (int)cp_len); |
6732 | 534k | control->data = sctp_m_free(m); |
6733 | 534k | m = control->data; |
6734 | | /* been through it all, must hold sb lock ok to null tail */ |
6735 | 534k | if (control->data == NULL) { |
6736 | 532k | #ifdef INVARIANTS |
6737 | | #if defined(__FreeBSD__) && !defined(__Userspace__) |
6738 | | if ((control->end_added == 0) || |
6739 | | (TAILQ_NEXT(control, next) == NULL)) { |
6740 | | /* If the end is not added, OR the |
6741 | | * next is NOT null we MUST have the lock. |
6742 | | */ |
6743 | | if (mtx_owned(&inp->inp_rdata_mtx) == 0) { |
6744 | | panic("Hmm we don't own the lock?"); |
6745 | | } |
6746 | | } |
6747 | | #endif |
6748 | 532k | #endif |
6749 | 532k | control->tail_mbuf = NULL; |
6750 | 532k | #ifdef INVARIANTS |
6751 | 532k | if ((control->end_added) && ((out_flags & MSG_EOR) == 0)) { |
6752 | 0 | panic("end_added, nothing left and no MSG_EOR"); |
6753 | 0 | } |
6754 | 532k | #endif |
6755 | 532k | } |
6756 | 534k | } |
6757 | 534k | } else { |
6758 | | /* Do we need to trim the mbuf? */ |
6759 | 204 | if (control->spec_flags & M_NOTIFICATION) { |
6760 | 0 | out_flags |= MSG_NOTIFICATION; |
6761 | 0 | } |
6762 | 204 | if ((in_flags & MSG_PEEK) == 0) { |
6763 | 204 | SCTP_BUF_RESV_UF(m, cp_len); |
6764 | 204 | SCTP_BUF_LEN(m) -= (int)cp_len; |
6765 | 204 | if (SCTP_BASE_SYSCTL(sctp_logging_level) & SCTP_SB_LOGGING_ENABLE) { |
6766 | 0 | sctp_sblog(&so->so_rcv, control->do_not_ref_stcb?NULL:stcb, SCTP_LOG_SBFREE, (int)cp_len); |
6767 | 0 | } |
6768 | 204 | SCTP_SB_DECR(&so->so_rcv, cp_len); |
6769 | 204 | if ((control->do_not_ref_stcb == 0) && |
6770 | 204 | stcb) { |
6771 | 111 | atomic_subtract_int(&stcb->asoc.sb_cc, (int)cp_len); |
6772 | 111 | } |
6773 | 204 | copied_so_far += cp_len; |
6774 | 204 | freed_so_far += (uint32_t)cp_len; |
6775 | 204 | freed_so_far += MSIZE; |
6776 | 204 | if (SCTP_BASE_SYSCTL(sctp_logging_level) & SCTP_SB_LOGGING_ENABLE) { |
6777 | 0 | sctp_sblog(&so->so_rcv, control->do_not_ref_stcb?NULL:stcb, |
6778 | 0 | SCTP_LOG_SBRESULT, 0); |
6779 | 0 | } |
6780 | 204 | atomic_subtract_int(&control->length, (int)cp_len); |
6781 | 204 | } else { |
6782 | 0 | copied_so_far += cp_len; |
6783 | 0 | } |
6784 | 204 | } |
6785 | | #if defined(__APPLE__) && !defined(__Userspace__) |
6786 | | #if defined(APPLE_LEOPARD) |
6787 | | if ((out_flags & MSG_EOR) || (uio->uio_resid == 0)) { |
6788 | | #else |
6789 | | if ((out_flags & MSG_EOR) || (uio_resid(uio) == 0)) { |
6790 | | #endif |
6791 | | #else |
6792 | 534k | if ((out_flags & MSG_EOR) || (uio->uio_resid == 0)) { |
6793 | 532k | #endif |
6794 | 532k | break; |
6795 | 532k | } |
6796 | 1.85k | if (((stcb) && (in_flags & MSG_PEEK) == 0) && |
6797 | 1.85k | (control->do_not_ref_stcb == 0) && |
6798 | 1.85k | (freed_so_far >= rwnd_req)) { |
6799 | 27 | sctp_user_rcvd(stcb, &freed_so_far, hold_rlock, rwnd_req); |
6800 | 27 | } |
6801 | 1.85k | } /* end while(m) */ |
6802 | | /* |
6803 | | * At this point we have looked at it all and we either have |
6804 | | * a MSG_EOR/or read all the user wants... <OR> |
6805 | | * control->length == 0. |
6806 | | */ |
6807 | 532k | if ((out_flags & MSG_EOR) && ((in_flags & MSG_PEEK) == 0)) { |
6808 | | /* we are done with this control */ |
6809 | 532k | if (control->length == 0) { |
6810 | 532k | if (control->data) { |
6811 | 0 | #ifdef INVARIANTS |
6812 | 0 | panic("control->data not null at read eor?"); |
6813 | | #else |
6814 | | SCTP_PRINTF("Strange, data left in the control buffer .. invariants would panic?\n"); |
6815 | | sctp_m_freem(control->data); |
6816 | | control->data = NULL; |
6817 | | #endif |
6818 | 0 | } |
6819 | 532k | done_with_control: |
6820 | 532k | if (hold_rlock == 0) { |
6821 | 0 | SCTP_INP_READ_LOCK(inp); |
6822 | 0 | hold_rlock = 1; |
6823 | 0 | } |
6824 | 532k | TAILQ_REMOVE(&inp->read_queue, control, next); |
6825 | | /* Add back any hidden data */ |
6826 | 532k | if (control->held_length) { |
6827 | 0 | held_length = 0; |
6828 | 0 | control->held_length = 0; |
6829 | 0 | wakeup_read_socket = 1; |
6830 | 0 | } |
6831 | 532k | if (control->aux_data) { |
6832 | 0 | sctp_m_free (control->aux_data); |
6833 | 0 | control->aux_data = NULL; |
6834 | 0 | } |
6835 | 532k | no_rcv_needed = control->do_not_ref_stcb; |
6836 | 532k | sctp_free_remote_addr(control->whoFrom); |
6837 | 532k | control->data = NULL; |
6838 | 532k | #ifdef INVARIANTS |
6839 | 532k | if (control->on_strm_q) { |
6840 | 0 | panic("About to free ctl:%p so:%p and its in %d", |
6841 | 0 | control, so, control->on_strm_q); |
6842 | 0 | } |
6843 | 532k | #endif |
6844 | 1.06M | sctp_free_a_readq(stcb, control); |
6845 | 1.06M | control = NULL; |
6846 | 1.06M | if ((freed_so_far >= rwnd_req) && |
6847 | 532k | (no_rcv_needed == 0)) |
6848 | 17.6k | sctp_user_rcvd(stcb, &freed_so_far, hold_rlock, rwnd_req); |
6849 | | |
6850 | 1.06M | } else { |
6851 | | /* |
6852 | | * The user did not read all of this |
6853 | | * message, turn off the returned MSG_EOR |
6854 | | * since we are leaving more behind on the |
6855 | | * control to read. |
6856 | | */ |
6857 | 0 | #ifdef INVARIANTS |
6858 | 0 | if (control->end_added && |
6859 | 0 | (control->data == NULL) && |
6860 | 0 | (control->tail_mbuf == NULL)) { |
6861 | 0 | panic("Gak, control->length is corrupt?"); |
6862 | 0 | } |
6863 | 0 | #endif |
6864 | 0 | no_rcv_needed = control->do_not_ref_stcb; |
6865 | 0 | out_flags &= ~MSG_EOR; |
6866 | 0 | } |
6867 | 532k | } |
6868 | 532k | if (out_flags & MSG_EOR) { |
6869 | 532k | goto release; |
6870 | 532k | } |
6871 | | #if defined(__APPLE__) && !defined(__Userspace__) |
6872 | | #if defined(APPLE_LEOPARD) |
6873 | | if ((uio->uio_resid == 0) || |
6874 | | #else |
6875 | | if ((uio_resid(uio) == 0) || |
6876 | | #endif |
6877 | | #else |
6878 | 204 | if ((uio->uio_resid == 0) || |
6879 | 204 | #endif |
6880 | 204 | ((in_eeor_mode) && |
6881 | 204 | (copied_so_far >= max(so->so_rcv.sb_lowat, 1)))) { |
6882 | 204 | goto release; |
6883 | 204 | } |
6884 | | /* |
6885 | | * If I hit here the receiver wants more and this message is |
6886 | | * NOT done (pd-api). So two questions. Can we block? if not |
6887 | | * we are done. Did the user NOT set MSG_WAITALL? |
6888 | | */ |
6889 | 0 | if (block_allowed == 0) { |
6890 | 0 | goto release; |
6891 | 0 | } |
6892 | | /* |
6893 | | * We need to wait for more data a few things: |
6894 | | * - We don't release the I/O lock so we don't get someone else |
6895 | | * reading. |
6896 | | * - We must be sure to account for the case where what is added |
6897 | | * is NOT to our control when we wakeup. |
6898 | | */ |
6899 | | |
6900 | | /* Do we need to tell the transport a rwnd update might be |
6901 | | * needed before we go to sleep? |
6902 | | */ |
6903 | 0 | if (((stcb) && (in_flags & MSG_PEEK) == 0) && |
6904 | 0 | ((freed_so_far >= rwnd_req) && |
6905 | 0 | (control->do_not_ref_stcb == 0) && |
6906 | 0 | (no_rcv_needed == 0))) { |
6907 | 0 | sctp_user_rcvd(stcb, &freed_so_far, hold_rlock, rwnd_req); |
6908 | 0 | } |
6909 | 0 | wait_some_more: |
6910 | | #if (defined(__FreeBSD__) || defined(_WIN32)) && !defined(__Userspace__) |
6911 | | if (so->so_rcv.sb_state & SBS_CANTRCVMORE) { |
6912 | | goto release; |
6913 | | } |
6914 | | #else |
6915 | 0 | if (so->so_state & SS_CANTRCVMORE) { |
6916 | 0 | goto release; |
6917 | 0 | } |
6918 | 0 | #endif |
6919 | | |
6920 | 0 | if (inp->sctp_flags & SCTP_PCB_FLAGS_SOCKET_GONE) |
6921 | 0 | goto release; |
6922 | | |
6923 | 0 | if (hold_rlock == 1) { |
6924 | 0 | SCTP_INP_READ_UNLOCK(inp); |
6925 | 0 | hold_rlock = 0; |
6926 | 0 | } |
6927 | 0 | if (hold_sblock == 0) { |
6928 | 0 | SOCKBUF_LOCK(&so->so_rcv); |
6929 | 0 | hold_sblock = 1; |
6930 | 0 | } |
6931 | 0 | if ((copied_so_far) && (control->length == 0) && |
6932 | 0 | (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_FRAG_INTERLEAVE))) { |
6933 | 0 | goto release; |
6934 | 0 | } |
6935 | | #if defined(__APPLE__) && !defined(__Userspace__) |
6936 | | sbunlock(&so->so_rcv, 1); |
6937 | | #endif |
6938 | 0 | if (SCTP_SBAVAIL(&so->so_rcv) <= control->held_length) { |
6939 | | #if defined(__FreeBSD__) && !defined(__Userspace__) |
6940 | | error = sbwait(so, SO_RCV); |
6941 | | #else |
6942 | 0 | error = sbwait(&so->so_rcv); |
6943 | 0 | #endif |
6944 | 0 | if (error) { |
6945 | | #if defined(__APPLE__) && !defined(__Userspace__) |
6946 | | goto release_unlocked; |
6947 | | #else |
6948 | 0 | goto release; |
6949 | 0 | #endif |
6950 | 0 | } |
6951 | 0 | control->held_length = 0; |
6952 | 0 | } |
6953 | | #if defined(__APPLE__) && !defined(__Userspace__) |
6954 | | error = sblock(&so->so_rcv, SBLOCKWAIT(in_flags)); |
6955 | | #endif |
6956 | 0 | if (hold_sblock) { |
6957 | 0 | SOCKBUF_UNLOCK(&so->so_rcv); |
6958 | 0 | hold_sblock = 0; |
6959 | 0 | } |
6960 | 0 | if (control->length == 0) { |
6961 | | /* still nothing here */ |
6962 | 0 | if (control->end_added == 1) { |
6963 | | /* he aborted, or is done i.e.did a shutdown */ |
6964 | 0 | out_flags |= MSG_EOR; |
6965 | 0 | if (control->pdapi_aborted) { |
6966 | 0 | if ((control->do_not_ref_stcb == 0) && ((control->spec_flags & M_NOTIFICATION) == 0)) |
6967 | 0 | control->stcb->asoc.strmin[control->sinfo_stream].delivery_started = 0; |
6968 | |
|
6969 | 0 | out_flags |= MSG_TRUNC; |
6970 | 0 | } else { |
6971 | 0 | if ((control->do_not_ref_stcb == 0) && ((control->spec_flags & M_NOTIFICATION) == 0)) |
6972 | 0 | control->stcb->asoc.strmin[control->sinfo_stream].delivery_started = 0; |
6973 | 0 | } |
6974 | 0 | goto done_with_control; |
6975 | 0 | } |
6976 | 0 | if (SCTP_SBAVAIL(&so->so_rcv) > held_length) { |
6977 | 0 | control->held_length = SCTP_SBAVAIL(&so->so_rcv); |
6978 | 0 | held_length = 0; |
6979 | 0 | } |
6980 | 0 | goto wait_some_more; |
6981 | 0 | } else if (control->data == NULL) { |
6982 | | /* we must re-sync since data |
6983 | | * is probably being added |
6984 | | */ |
6985 | 0 | SCTP_INP_READ_LOCK(inp); |
6986 | 0 | if ((control->length > 0) && (control->data == NULL)) { |
6987 | | /* big trouble.. we have the lock and its corrupt? */ |
6988 | 0 | #ifdef INVARIANTS |
6989 | 0 | panic ("Impossible data==NULL length !=0"); |
6990 | 0 | #endif |
6991 | 0 | out_flags |= MSG_EOR; |
6992 | 0 | out_flags |= MSG_TRUNC; |
6993 | 0 | control->length = 0; |
6994 | 0 | SCTP_INP_READ_UNLOCK(inp); |
6995 | 0 | goto done_with_control; |
6996 | 0 | } |
6997 | 0 | SCTP_INP_READ_UNLOCK(inp); |
6998 | | /* We will fall around to get more data */ |
6999 | 0 | } |
7000 | 0 | goto get_more_data; |
7001 | 0 | } else { |
7002 | | /*- |
7003 | | * Give caller back the mbuf chain, |
7004 | | * store in uio_resid the length |
7005 | | */ |
7006 | 0 | wakeup_read_socket = 0; |
7007 | 0 | if ((control->end_added == 0) || |
7008 | 0 | (TAILQ_NEXT(control, next) == NULL)) { |
7009 | | /* Need to get rlock */ |
7010 | 0 | if (hold_rlock == 0) { |
7011 | 0 | SCTP_INP_READ_LOCK(inp); |
7012 | 0 | hold_rlock = 1; |
7013 | 0 | } |
7014 | 0 | } |
7015 | 0 | if (control->end_added) { |
7016 | 0 | out_flags |= MSG_EOR; |
7017 | 0 | if ((control->do_not_ref_stcb == 0) && |
7018 | 0 | (control->stcb != NULL) && |
7019 | 0 | ((control->spec_flags & M_NOTIFICATION) == 0)) |
7020 | 0 | control->stcb->asoc.strmin[control->sinfo_stream].delivery_started = 0; |
7021 | 0 | } |
7022 | 0 | if (control->spec_flags & M_NOTIFICATION) { |
7023 | 0 | out_flags |= MSG_NOTIFICATION; |
7024 | 0 | } |
7025 | | #if defined(__APPLE__) && !defined(__Userspace__) |
7026 | | #if defined(APPLE_LEOPARD) |
7027 | | uio->uio_resid = control->length; |
7028 | | #else |
7029 | | uio_setresid(uio, control->length); |
7030 | | #endif |
7031 | | #else |
7032 | 0 | uio->uio_resid = control->length; |
7033 | 0 | #endif |
7034 | 0 | *mp = control->data; |
7035 | 0 | m = control->data; |
7036 | 0 | while (m) { |
7037 | 0 | if (SCTP_BASE_SYSCTL(sctp_logging_level) & SCTP_SB_LOGGING_ENABLE) { |
7038 | 0 | sctp_sblog(&so->so_rcv, |
7039 | 0 | control->do_not_ref_stcb?NULL:stcb, SCTP_LOG_SBFREE, SCTP_BUF_LEN(m)); |
7040 | 0 | } |
7041 | 0 | sctp_sbfree(control, stcb, &so->so_rcv, m); |
7042 | 0 | freed_so_far += (uint32_t)SCTP_BUF_LEN(m); |
7043 | 0 | freed_so_far += MSIZE; |
7044 | 0 | if (SCTP_BASE_SYSCTL(sctp_logging_level) & SCTP_SB_LOGGING_ENABLE) { |
7045 | 0 | sctp_sblog(&so->so_rcv, |
7046 | 0 | control->do_not_ref_stcb?NULL:stcb, SCTP_LOG_SBRESULT, 0); |
7047 | 0 | } |
7048 | 0 | m = SCTP_BUF_NEXT(m); |
7049 | 0 | } |
7050 | 0 | control->data = control->tail_mbuf = NULL; |
7051 | 0 | control->length = 0; |
7052 | 0 | if (out_flags & MSG_EOR) { |
7053 | | /* Done with this control */ |
7054 | 0 | goto done_with_control; |
7055 | 0 | } |
7056 | 0 | } |
7057 | 532k | release: |
7058 | 532k | if (hold_rlock == 1) { |
7059 | 532k | SCTP_INP_READ_UNLOCK(inp); |
7060 | 532k | hold_rlock = 0; |
7061 | 532k | } |
7062 | 532k | #if defined(__Userspace__) |
7063 | 532k | if (hold_sblock == 0) { |
7064 | 532k | SOCKBUF_LOCK(&so->so_rcv); |
7065 | 532k | hold_sblock = 1; |
7066 | 532k | } |
7067 | | #else |
7068 | | if (hold_sblock == 1) { |
7069 | | SOCKBUF_UNLOCK(&so->so_rcv); |
7070 | | hold_sblock = 0; |
7071 | | } |
7072 | | #endif |
7073 | | #if defined(__APPLE__) && !defined(__Userspace__) |
7074 | | sbunlock(&so->so_rcv, 1); |
7075 | | #endif |
7076 | | |
7077 | | #if defined(__FreeBSD__) && !defined(__Userspace__) |
7078 | | SOCK_IO_RECV_UNLOCK(so); |
7079 | | sockbuf_lock = 0; |
7080 | | #endif |
7081 | | |
7082 | 532k | release_unlocked: |
7083 | 532k | if (hold_sblock) { |
7084 | 532k | SOCKBUF_UNLOCK(&so->so_rcv); |
7085 | 532k | hold_sblock = 0; |
7086 | 532k | } |
7087 | 532k | if ((stcb) && (in_flags & MSG_PEEK) == 0) { |
7088 | 532k | if ((freed_so_far >= rwnd_req) && |
7089 | 532k | (control && (control->do_not_ref_stcb == 0)) && |
7090 | 532k | (no_rcv_needed == 0)) |
7091 | 7 | sctp_user_rcvd(stcb, &freed_so_far, hold_rlock, rwnd_req); |
7092 | 532k | } |
7093 | 534k | out: |
7094 | 534k | if (msg_flags) { |
7095 | 534k | *msg_flags = out_flags; |
7096 | 534k | } |
7097 | 534k | if (((out_flags & MSG_EOR) == 0) && |
7098 | 534k | ((in_flags & MSG_PEEK) == 0) && |
7099 | 534k | (sinfo) && |
7100 | 534k | (sctp_is_feature_on(inp, SCTP_PCB_FLAGS_EXT_RCVINFO) || |
7101 | 1.90k | sctp_is_feature_on(inp, SCTP_PCB_FLAGS_RECVNXTINFO))) { |
7102 | 1.90k | struct sctp_extrcvinfo *s_extra; |
7103 | 1.90k | s_extra = (struct sctp_extrcvinfo *)sinfo; |
7104 | 1.90k | s_extra->serinfo_next_flags = SCTP_NO_NEXT_MSG; |
7105 | 1.90k | } |
7106 | 534k | if (hold_rlock == 1) { |
7107 | 0 | SCTP_INP_READ_UNLOCK(inp); |
7108 | 0 | } |
7109 | 534k | if (hold_sblock) { |
7110 | 1.70k | SOCKBUF_UNLOCK(&so->so_rcv); |
7111 | 1.70k | } |
7112 | | #if defined(__FreeBSD__) && !defined(__Userspace__) |
7113 | | if (sockbuf_lock) { |
7114 | | SOCK_IO_RECV_UNLOCK(so); |
7115 | | } |
7116 | | #endif |
7117 | | |
7118 | 534k | if (freecnt_applied) { |
7119 | | /* |
7120 | | * The lock on the socket buffer protects us so the free |
7121 | | * code will stop. But since we used the socketbuf lock and |
7122 | | * the sender uses the tcb_lock to increment, we need to use |
7123 | | * the atomic add to the refcnt. |
7124 | | */ |
7125 | 390k | if (stcb == NULL) { |
7126 | 0 | #ifdef INVARIANTS |
7127 | 0 | panic("stcb for refcnt has gone NULL?"); |
7128 | 0 | goto stage_left; |
7129 | | #else |
7130 | | goto stage_left; |
7131 | | #endif |
7132 | 0 | } |
7133 | | /* Save the value back for next time */ |
7134 | 390k | stcb->freed_by_sorcv_sincelast = freed_so_far; |
7135 | 390k | atomic_subtract_int(&stcb->asoc.refcnt, 1); |
7136 | 390k | } |
7137 | 534k | if (SCTP_BASE_SYSCTL(sctp_logging_level) &SCTP_RECV_RWND_LOGGING_ENABLE) { |
7138 | 0 | if (stcb) { |
7139 | 0 | sctp_misc_ints(SCTP_SORECV_DONE, |
7140 | 0 | freed_so_far, |
7141 | | #if defined(__APPLE__) && !defined(__Userspace__) |
7142 | | #if defined(APPLE_LEOPARD) |
7143 | | ((uio) ? (slen - uio->uio_resid) : slen), |
7144 | | #else |
7145 | | ((uio) ? (slen - uio_resid(uio)) : slen), |
7146 | | #endif |
7147 | | #else |
7148 | 0 | (uint32_t)((uio) ? (slen - uio->uio_resid) : slen), |
7149 | 0 | #endif |
7150 | 0 | stcb->asoc.my_rwnd, |
7151 | 0 | SCTP_SBAVAIL(&so->so_rcv)); |
7152 | 0 | } else { |
7153 | 0 | sctp_misc_ints(SCTP_SORECV_DONE, |
7154 | 0 | freed_so_far, |
7155 | | #if defined(__APPLE__) && !defined(__Userspace__) |
7156 | | #if defined(APPLE_LEOPARD) |
7157 | | ((uio) ? (slen - uio->uio_resid) : slen), |
7158 | | #else |
7159 | | ((uio) ? (slen - uio_resid(uio)) : slen), |
7160 | | #endif |
7161 | | #else |
7162 | 0 | (uint32_t)((uio) ? (slen - uio->uio_resid) : slen), |
7163 | 0 | #endif |
7164 | 0 | 0, |
7165 | 0 | SCTP_SBAVAIL(&so->so_rcv)); |
7166 | 0 | } |
7167 | 0 | } |
7168 | 534k | stage_left: |
7169 | 534k | if (wakeup_read_socket) { |
7170 | 0 | sctp_sorwakeup(inp, so); |
7171 | 0 | } |
7172 | 534k | return (error); |
7173 | 534k | } |
7174 | | |
7175 | | #ifdef SCTP_MBUF_LOGGING |
7176 | | struct mbuf * |
7177 | | sctp_m_free(struct mbuf *m) |
7178 | | { |
7179 | | if (SCTP_BASE_SYSCTL(sctp_logging_level) & SCTP_MBUF_LOGGING_ENABLE) { |
7180 | | sctp_log_mb(m, SCTP_MBUF_IFREE); |
7181 | | } |
7182 | | return (m_free(m)); |
7183 | | } |
7184 | | |
7185 | | void |
7186 | | sctp_m_freem(struct mbuf *mb) |
7187 | | { |
7188 | | while (mb != NULL) |
7189 | | mb = sctp_m_free(mb); |
7190 | | } |
7191 | | |
7192 | | #endif |
7193 | | |
7194 | | int |
7195 | | sctp_dynamic_set_primary(struct sockaddr *sa, uint32_t vrf_id) |
7196 | 0 | { |
7197 | | /* Given a local address. For all associations |
7198 | | * that holds the address, request a peer-set-primary. |
7199 | | */ |
7200 | 0 | struct sctp_ifa *ifa; |
7201 | 0 | struct sctp_laddr *wi; |
7202 | |
|
7203 | 0 | ifa = sctp_find_ifa_by_addr(sa, vrf_id, SCTP_ADDR_NOT_LOCKED); |
7204 | 0 | if (ifa == NULL) { |
7205 | 0 | SCTP_LTRACE_ERR_RET(NULL, NULL, NULL, SCTP_FROM_SCTPUTIL, EADDRNOTAVAIL); |
7206 | 0 | return (EADDRNOTAVAIL); |
7207 | 0 | } |
7208 | | /* Now that we have the ifa we must awaken the |
7209 | | * iterator with this message. |
7210 | | */ |
7211 | 0 | wi = SCTP_ZONE_GET(SCTP_BASE_INFO(ipi_zone_laddr), struct sctp_laddr); |
7212 | 0 | if (wi == NULL) { |
7213 | 0 | SCTP_LTRACE_ERR_RET(NULL, NULL, NULL, SCTP_FROM_SCTPUTIL, ENOMEM); |
7214 | 0 | return (ENOMEM); |
7215 | 0 | } |
7216 | | /* Now incr the count and int wi structure */ |
7217 | 0 | SCTP_INCR_LADDR_COUNT(); |
7218 | 0 | memset(wi, 0, sizeof(*wi)); |
7219 | 0 | (void)SCTP_GETTIME_TIMEVAL(&wi->start_time); |
7220 | 0 | wi->ifa = ifa; |
7221 | 0 | wi->action = SCTP_SET_PRIM_ADDR; |
7222 | 0 | atomic_add_int(&ifa->refcount, 1); |
7223 | | |
7224 | | /* Now add it to the work queue */ |
7225 | 0 | SCTP_WQ_ADDR_LOCK(); |
7226 | | /* |
7227 | | * Should this really be a tailq? As it is we will process the |
7228 | | * newest first :-0 |
7229 | | */ |
7230 | 0 | LIST_INSERT_HEAD(&SCTP_BASE_INFO(addr_wq), wi, sctp_nxt_addr); |
7231 | 0 | sctp_timer_start(SCTP_TIMER_TYPE_ADDR_WQ, |
7232 | 0 | (struct sctp_inpcb *)NULL, |
7233 | 0 | (struct sctp_tcb *)NULL, |
7234 | 0 | (struct sctp_nets *)NULL); |
7235 | 0 | SCTP_WQ_ADDR_UNLOCK(); |
7236 | 0 | return (0); |
7237 | 0 | } |
7238 | | |
7239 | | #if defined(__Userspace__) |
7240 | | /* no sctp_soreceive for __Userspace__ now */ |
7241 | | #endif |
7242 | | #if !defined(__Userspace__) |
7243 | | int |
7244 | | sctp_soreceive( struct socket *so, |
7245 | | struct sockaddr **psa, |
7246 | | struct uio *uio, |
7247 | | struct mbuf **mp0, |
7248 | | struct mbuf **controlp, |
7249 | | int *flagsp) |
7250 | | { |
7251 | | int error, fromlen; |
7252 | | uint8_t sockbuf[256]; |
7253 | | struct sockaddr *from; |
7254 | | struct sctp_extrcvinfo sinfo; |
7255 | | int filling_sinfo = 1; |
7256 | | int flags; |
7257 | | struct sctp_inpcb *inp; |
7258 | | |
7259 | | inp = (struct sctp_inpcb *)so->so_pcb; |
7260 | | /* pickup the assoc we are reading from */ |
7261 | | if (inp == NULL) { |
7262 | | SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTPUTIL, EINVAL); |
7263 | | return (EINVAL); |
7264 | | } |
7265 | | if ((sctp_is_feature_off(inp, SCTP_PCB_FLAGS_RECVDATAIOEVNT) && |
7266 | | sctp_is_feature_off(inp, SCTP_PCB_FLAGS_RECVRCVINFO) && |
7267 | | sctp_is_feature_off(inp, SCTP_PCB_FLAGS_RECVNXTINFO)) || |
7268 | | (controlp == NULL)) { |
7269 | | /* user does not want the sndrcv ctl */ |
7270 | | filling_sinfo = 0; |
7271 | | } |
7272 | | if (psa) { |
7273 | | from = (struct sockaddr *)sockbuf; |
7274 | | fromlen = sizeof(sockbuf); |
7275 | | #ifdef HAVE_SA_LEN |
7276 | | from->sa_len = 0; |
7277 | | #endif |
7278 | | } else { |
7279 | | from = NULL; |
7280 | | fromlen = 0; |
7281 | | } |
7282 | | |
7283 | | #if defined(__APPLE__) && !defined(__Userspace__) |
7284 | | SCTP_SOCKET_LOCK(so, 1); |
7285 | | #endif |
7286 | | if (filling_sinfo) { |
7287 | | memset(&sinfo, 0, sizeof(struct sctp_extrcvinfo)); |
7288 | | } |
7289 | | if (flagsp != NULL) { |
7290 | | flags = *flagsp; |
7291 | | } else { |
7292 | | flags = 0; |
7293 | | } |
7294 | | error = sctp_sorecvmsg(so, uio, mp0, from, fromlen, &flags, |
7295 | | (struct sctp_sndrcvinfo *)&sinfo, filling_sinfo); |
7296 | | if (flagsp != NULL) { |
7297 | | *flagsp = flags; |
7298 | | } |
7299 | | if (controlp != NULL) { |
7300 | | /* copy back the sinfo in a CMSG format */ |
7301 | | if (filling_sinfo && ((flags & MSG_NOTIFICATION) == 0)) { |
7302 | | *controlp = sctp_build_ctl_nchunk(inp, |
7303 | | (struct sctp_sndrcvinfo *)&sinfo); |
7304 | | } else { |
7305 | | *controlp = NULL; |
7306 | | } |
7307 | | } |
7308 | | if (psa) { |
7309 | | /* copy back the address info */ |
7310 | | #ifdef HAVE_SA_LEN |
7311 | | if (from && from->sa_len) { |
7312 | | #else |
7313 | | if (from) { |
7314 | | #endif |
7315 | | #if (defined(__FreeBSD__) || defined(_WIN32)) && !defined(__Userspace__) |
7316 | | *psa = sodupsockaddr(from, M_NOWAIT); |
7317 | | #else |
7318 | | *psa = dup_sockaddr(from, mp0 == 0); |
7319 | | #endif |
7320 | | } else { |
7321 | | *psa = NULL; |
7322 | | } |
7323 | | } |
7324 | | #if defined(__APPLE__) && !defined(__Userspace__) |
7325 | | SCTP_SOCKET_UNLOCK(so, 1); |
7326 | | #endif |
7327 | | return (error); |
7328 | | } |
7329 | | |
7330 | | #if defined(_WIN32) && !defined(__Userspace__) |
7331 | | /* |
7332 | | * General routine to allocate a hash table with control of memory flags. |
7333 | | * is in 7.0 and beyond for sure :-) |
7334 | | */ |
7335 | | void * |
7336 | | sctp_hashinit_flags(int elements, struct malloc_type *type, |
7337 | | u_long *hashmask, int flags) |
7338 | | { |
7339 | | long hashsize; |
7340 | | LIST_HEAD(generic, generic) *hashtbl; |
7341 | | int i; |
7342 | | |
7343 | | |
7344 | | if (elements <= 0) { |
7345 | | #ifdef INVARIANTS |
7346 | | panic("hashinit: bad elements"); |
7347 | | #else |
7348 | | SCTP_PRINTF("hashinit: bad elements?"); |
7349 | | elements = 1; |
7350 | | #endif |
7351 | | } |
7352 | | for (hashsize = 1; hashsize <= elements; hashsize <<= 1) |
7353 | | continue; |
7354 | | hashsize >>= 1; |
7355 | | if (flags & HASH_WAITOK) |
7356 | | hashtbl = malloc((u_long)hashsize * sizeof(*hashtbl), type, M_WAITOK); |
7357 | | else if (flags & HASH_NOWAIT) |
7358 | | hashtbl = malloc((u_long)hashsize * sizeof(*hashtbl), type, M_NOWAIT); |
7359 | | else { |
7360 | | #ifdef INVARIANTS |
7361 | | panic("flag incorrect in hashinit_flags"); |
7362 | | #else |
7363 | | return (NULL); |
7364 | | #endif |
7365 | | } |
7366 | | |
7367 | | /* no memory? */ |
7368 | | if (hashtbl == NULL) |
7369 | | return (NULL); |
7370 | | |
7371 | | for (i = 0; i < hashsize; i++) |
7372 | | LIST_INIT(&hashtbl[i]); |
7373 | | *hashmask = hashsize - 1; |
7374 | | return (hashtbl); |
7375 | | } |
7376 | | #endif |
7377 | | #else /* __Userspace__ ifdef above sctp_soreceive */ |
7378 | | /* |
7379 | | * __Userspace__ Defining sctp_hashinit_flags() and sctp_hashdestroy() for userland. |
7380 | | * NOTE: We don't want multiple definitions here. So sctp_hashinit_flags() above for |
7381 | | *__FreeBSD__ must be excluded. |
7382 | | * |
7383 | | */ |
7384 | | |
7385 | | void * |
7386 | | sctp_hashinit_flags(int elements, struct malloc_type *type, |
7387 | | u_long *hashmask, int flags) |
7388 | 21.2k | { |
7389 | 21.2k | long hashsize; |
7390 | 21.2k | LIST_HEAD(generic, generic) *hashtbl; |
7391 | 21.2k | int i; |
7392 | | |
7393 | 21.2k | if (elements <= 0) { |
7394 | 0 | SCTP_PRINTF("hashinit: bad elements?"); |
7395 | 0 | #ifdef INVARIANTS |
7396 | 0 | return (NULL); |
7397 | | #else |
7398 | | elements = 1; |
7399 | | #endif |
7400 | 0 | } |
7401 | 180k | for (hashsize = 1; hashsize <= elements; hashsize <<= 1) |
7402 | 159k | continue; |
7403 | 21.2k | hashsize >>= 1; |
7404 | | /*cannot use MALLOC here because it has to be declared or defined |
7405 | | using MALLOC_DECLARE or MALLOC_DEFINE first. */ |
7406 | 21.2k | if (flags & HASH_WAITOK) |
7407 | 0 | hashtbl = malloc((u_long)hashsize * sizeof(*hashtbl)); |
7408 | 21.2k | else if (flags & HASH_NOWAIT) |
7409 | 21.2k | hashtbl = malloc((u_long)hashsize * sizeof(*hashtbl)); |
7410 | 0 | else { |
7411 | 0 | #ifdef INVARIANTS |
7412 | 0 | SCTP_PRINTF("flag incorrect in hashinit_flags.\n"); |
7413 | 0 | #endif |
7414 | 0 | return (NULL); |
7415 | 0 | } |
7416 | | |
7417 | | /* no memory? */ |
7418 | 21.2k | if (hashtbl == NULL) |
7419 | 0 | return (NULL); |
7420 | | |
7421 | 3.10M | for (i = 0; i < hashsize; i++) |
7422 | 3.08M | LIST_INIT(&hashtbl[i]); |
7423 | 21.2k | *hashmask = hashsize - 1; |
7424 | 21.2k | return (hashtbl); |
7425 | 21.2k | } |
7426 | | |
7427 | | void |
7428 | | sctp_hashdestroy(void *vhashtbl, struct malloc_type *type, u_long hashmask) |
7429 | 21.2k | { |
7430 | 21.2k | LIST_HEAD(generic, generic) *hashtbl, *hp; |
7431 | | |
7432 | 21.2k | hashtbl = vhashtbl; |
7433 | 3.08M | for (hp = hashtbl; hp <= &hashtbl[hashmask]; hp++) |
7434 | 3.06M | if (!LIST_EMPTY(hp)) { |
7435 | 0 | SCTP_PRINTF("hashdestroy: hash not empty.\n"); |
7436 | 0 | return; |
7437 | 0 | } |
7438 | 21.2k | FREE(hashtbl, type); |
7439 | 21.2k | } |
7440 | | |
7441 | | void |
7442 | | sctp_hashfreedestroy(void *vhashtbl, struct malloc_type *type, u_long hashmask) |
7443 | 0 | { |
7444 | 0 | LIST_HEAD(generic, generic) *hashtbl/*, *hp*/; |
7445 | | /* |
7446 | | LIST_ENTRY(type) *start, *temp; |
7447 | | */ |
7448 | 0 | hashtbl = vhashtbl; |
7449 | | /* Apparently temp is not dynamically allocated, so attempts to |
7450 | | free it results in error. |
7451 | | for (hp = hashtbl; hp <= &hashtbl[hashmask]; hp++) |
7452 | | if (!LIST_EMPTY(hp)) { |
7453 | | start = LIST_FIRST(hp); |
7454 | | while (start != NULL) { |
7455 | | temp = start; |
7456 | | start = start->le_next; |
7457 | | SCTP_PRINTF("%s: %p \n", __func__, (void *)temp); |
7458 | | FREE(temp, type); |
7459 | | } |
7460 | | } |
7461 | | */ |
7462 | 0 | FREE(hashtbl, type); |
7463 | 0 | } |
7464 | | |
7465 | | #endif |
7466 | | int |
7467 | | sctp_connectx_helper_add(struct sctp_tcb *stcb, struct sockaddr *addr, |
7468 | | int totaddr, int *error) |
7469 | 0 | { |
7470 | 0 | int added = 0; |
7471 | 0 | int i; |
7472 | 0 | struct sctp_inpcb *inp; |
7473 | 0 | struct sockaddr *sa; |
7474 | 0 | size_t incr = 0; |
7475 | 0 | #ifdef INET |
7476 | 0 | struct sockaddr_in *sin; |
7477 | 0 | #endif |
7478 | 0 | #ifdef INET6 |
7479 | 0 | struct sockaddr_in6 *sin6; |
7480 | 0 | #endif |
7481 | |
|
7482 | 0 | sa = addr; |
7483 | 0 | inp = stcb->sctp_ep; |
7484 | 0 | *error = 0; |
7485 | 0 | for (i = 0; i < totaddr; i++) { |
7486 | 0 | switch (sa->sa_family) { |
7487 | 0 | #ifdef INET |
7488 | 0 | case AF_INET: |
7489 | 0 | incr = sizeof(struct sockaddr_in); |
7490 | 0 | sin = (struct sockaddr_in *)sa; |
7491 | 0 | if (in_broadcast(sin->sin_addr) || |
7492 | 0 | IN_MULTICAST(ntohl(sin->sin_addr.s_addr))) { |
7493 | 0 | SCTP_LTRACE_ERR_RET(NULL, stcb, NULL, SCTP_FROM_SCTPUTIL, EINVAL); |
7494 | 0 | (void)sctp_free_assoc(inp, stcb, SCTP_NORMAL_PROC, |
7495 | 0 | SCTP_FROM_SCTPUTIL + SCTP_LOC_7); |
7496 | 0 | *error = EINVAL; |
7497 | 0 | goto out_now; |
7498 | 0 | } |
7499 | 0 | if (sctp_add_remote_addr(stcb, sa, NULL, stcb->asoc.port, |
7500 | 0 | SCTP_DONOT_SETSCOPE, |
7501 | 0 | SCTP_ADDR_IS_CONFIRMED)) { |
7502 | | /* assoc gone no un-lock */ |
7503 | 0 | SCTP_LTRACE_ERR_RET(NULL, stcb, NULL, SCTP_FROM_SCTPUTIL, ENOBUFS); |
7504 | 0 | (void)sctp_free_assoc(inp, stcb, SCTP_NORMAL_PROC, |
7505 | 0 | SCTP_FROM_SCTPUTIL + SCTP_LOC_8); |
7506 | 0 | *error = ENOBUFS; |
7507 | 0 | goto out_now; |
7508 | 0 | } |
7509 | 0 | added++; |
7510 | 0 | break; |
7511 | 0 | #endif |
7512 | 0 | #ifdef INET6 |
7513 | 0 | case AF_INET6: |
7514 | 0 | incr = sizeof(struct sockaddr_in6); |
7515 | 0 | sin6 = (struct sockaddr_in6 *)sa; |
7516 | 0 | if (IN6_IS_ADDR_UNSPECIFIED(&sin6->sin6_addr) || |
7517 | 0 | IN6_IS_ADDR_MULTICAST(&sin6->sin6_addr)) { |
7518 | 0 | SCTP_LTRACE_ERR_RET(NULL, stcb, NULL, SCTP_FROM_SCTPUTIL, EINVAL); |
7519 | 0 | (void)sctp_free_assoc(inp, stcb, SCTP_NORMAL_PROC, |
7520 | 0 | SCTP_FROM_SCTPUTIL + SCTP_LOC_9); |
7521 | 0 | *error = EINVAL; |
7522 | 0 | goto out_now; |
7523 | 0 | } |
7524 | 0 | if (sctp_add_remote_addr(stcb, sa, NULL, stcb->asoc.port, |
7525 | 0 | SCTP_DONOT_SETSCOPE, |
7526 | 0 | SCTP_ADDR_IS_CONFIRMED)) { |
7527 | | /* assoc gone no un-lock */ |
7528 | 0 | SCTP_LTRACE_ERR_RET(NULL, stcb, NULL, SCTP_FROM_SCTPUTIL, ENOBUFS); |
7529 | 0 | (void)sctp_free_assoc(inp, stcb, SCTP_NORMAL_PROC, |
7530 | 0 | SCTP_FROM_SCTPUTIL + SCTP_LOC_10); |
7531 | 0 | *error = ENOBUFS; |
7532 | 0 | goto out_now; |
7533 | 0 | } |
7534 | 0 | added++; |
7535 | 0 | break; |
7536 | 0 | #endif |
7537 | 0 | #if defined(__Userspace__) |
7538 | 0 | case AF_CONN: |
7539 | 0 | incr = sizeof(struct sockaddr_conn); |
7540 | 0 | if (sctp_add_remote_addr(stcb, sa, NULL, stcb->asoc.port, |
7541 | 0 | SCTP_DONOT_SETSCOPE, |
7542 | 0 | SCTP_ADDR_IS_CONFIRMED)) { |
7543 | | /* assoc gone no un-lock */ |
7544 | 0 | SCTP_LTRACE_ERR_RET(NULL, stcb, NULL, SCTP_FROM_SCTPUTIL, ENOBUFS); |
7545 | 0 | (void)sctp_free_assoc(inp, stcb, SCTP_NORMAL_PROC, |
7546 | 0 | SCTP_FROM_SCTPUTIL + SCTP_LOC_11); |
7547 | 0 | *error = ENOBUFS; |
7548 | 0 | goto out_now; |
7549 | 0 | } |
7550 | 0 | added++; |
7551 | 0 | break; |
7552 | 0 | #endif |
7553 | 0 | default: |
7554 | 0 | break; |
7555 | 0 | } |
7556 | 0 | sa = (struct sockaddr *)((caddr_t)sa + incr); |
7557 | 0 | } |
7558 | 0 | out_now: |
7559 | 0 | return (added); |
7560 | 0 | } |
7561 | | |
7562 | | int |
7563 | | sctp_connectx_helper_find(struct sctp_inpcb *inp, struct sockaddr *addr, |
7564 | | unsigned int totaddr, |
7565 | | unsigned int *num_v4, unsigned int *num_v6, |
7566 | | unsigned int limit) |
7567 | 0 | { |
7568 | 0 | struct sockaddr *sa; |
7569 | 0 | struct sctp_tcb *stcb; |
7570 | 0 | unsigned int incr, at, i; |
7571 | |
|
7572 | 0 | at = 0; |
7573 | 0 | sa = addr; |
7574 | 0 | *num_v6 = *num_v4 = 0; |
7575 | | /* account and validate addresses */ |
7576 | 0 | if (totaddr == 0) { |
7577 | 0 | return (EINVAL); |
7578 | 0 | } |
7579 | 0 | for (i = 0; i < totaddr; i++) { |
7580 | 0 | if (at + sizeof(struct sockaddr) > limit) { |
7581 | 0 | return (EINVAL); |
7582 | 0 | } |
7583 | 0 | switch (sa->sa_family) { |
7584 | 0 | #ifdef INET |
7585 | 0 | case AF_INET: |
7586 | 0 | incr = (unsigned int)sizeof(struct sockaddr_in); |
7587 | | #ifdef HAVE_SA_LEN |
7588 | | if (sa->sa_len != incr) { |
7589 | | return (EINVAL); |
7590 | | } |
7591 | | #endif |
7592 | 0 | (*num_v4) += 1; |
7593 | 0 | break; |
7594 | 0 | #endif |
7595 | 0 | #ifdef INET6 |
7596 | 0 | case AF_INET6: |
7597 | 0 | { |
7598 | 0 | struct sockaddr_in6 *sin6; |
7599 | |
|
7600 | 0 | incr = (unsigned int)sizeof(struct sockaddr_in6); |
7601 | | #ifdef HAVE_SA_LEN |
7602 | | if (sa->sa_len != incr) { |
7603 | | return (EINVAL); |
7604 | | } |
7605 | | #endif |
7606 | 0 | sin6 = (struct sockaddr_in6 *)sa; |
7607 | 0 | if (IN6_IS_ADDR_V4MAPPED(&sin6->sin6_addr)) { |
7608 | | /* Must be non-mapped for connectx */ |
7609 | 0 | return (EINVAL); |
7610 | 0 | } |
7611 | 0 | (*num_v6) += 1; |
7612 | 0 | break; |
7613 | 0 | } |
7614 | 0 | #endif |
7615 | 0 | default: |
7616 | 0 | return (EINVAL); |
7617 | 0 | } |
7618 | 0 | if ((at + incr) > limit) { |
7619 | 0 | return (EINVAL); |
7620 | 0 | } |
7621 | 0 | SCTP_INP_INCR_REF(inp); |
7622 | 0 | stcb = sctp_findassociation_ep_addr(&inp, sa, NULL, NULL, NULL); |
7623 | 0 | if (stcb != NULL) { |
7624 | 0 | SCTP_TCB_UNLOCK(stcb); |
7625 | 0 | return (EALREADY); |
7626 | 0 | } else { |
7627 | 0 | SCTP_INP_DECR_REF(inp); |
7628 | 0 | } |
7629 | 0 | at += incr; |
7630 | 0 | sa = (struct sockaddr *)((caddr_t)sa + incr); |
7631 | 0 | } |
7632 | 0 | return (0); |
7633 | 0 | } |
7634 | | |
7635 | | /* |
7636 | | * sctp_bindx(ADD) for one address. |
7637 | | * assumes all arguments are valid/checked by caller. |
7638 | | */ |
7639 | | void |
7640 | | sctp_bindx_add_address(struct socket *so, struct sctp_inpcb *inp, |
7641 | | struct sockaddr *sa, uint32_t vrf_id, int *error, |
7642 | | void *p) |
7643 | 0 | { |
7644 | 0 | #if defined(INET) && defined(INET6) |
7645 | 0 | struct sockaddr_in sin; |
7646 | 0 | #endif |
7647 | 0 | #ifdef INET6 |
7648 | 0 | struct sockaddr_in6 *sin6; |
7649 | 0 | #endif |
7650 | 0 | #ifdef INET |
7651 | 0 | struct sockaddr_in *sinp; |
7652 | 0 | #endif |
7653 | 0 | struct sockaddr *addr_to_use; |
7654 | 0 | struct sctp_inpcb *lep; |
7655 | | #ifdef SCTP_MVRF |
7656 | | int i; |
7657 | | #endif |
7658 | 0 | uint16_t port; |
7659 | | |
7660 | | /* see if we're bound all already! */ |
7661 | 0 | if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUNDALL) { |
7662 | 0 | SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTPUTIL, EINVAL); |
7663 | 0 | *error = EINVAL; |
7664 | 0 | return; |
7665 | 0 | } |
7666 | | #ifdef SCTP_MVRF |
7667 | | /* Is the VRF one we have */ |
7668 | | for (i = 0; i < inp->num_vrfs; i++) { |
7669 | | if (vrf_id == inp->m_vrf_ids[i]) { |
7670 | | break; |
7671 | | } |
7672 | | } |
7673 | | if (i == inp->num_vrfs) { |
7674 | | SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTPUTIL, EINVAL); |
7675 | | *error = EINVAL; |
7676 | | return; |
7677 | | } |
7678 | | #endif |
7679 | 0 | switch (sa->sa_family) { |
7680 | 0 | #ifdef INET6 |
7681 | 0 | case AF_INET6: |
7682 | | #ifdef HAVE_SA_LEN |
7683 | | if (sa->sa_len != sizeof(struct sockaddr_in6)) { |
7684 | | SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTPUTIL, EINVAL); |
7685 | | *error = EINVAL; |
7686 | | return; |
7687 | | } |
7688 | | #endif |
7689 | 0 | if ((inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) == 0) { |
7690 | | /* can only bind v6 on PF_INET6 sockets */ |
7691 | 0 | SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTPUTIL, EINVAL); |
7692 | 0 | *error = EINVAL; |
7693 | 0 | return; |
7694 | 0 | } |
7695 | 0 | sin6 = (struct sockaddr_in6 *)sa; |
7696 | 0 | port = sin6->sin6_port; |
7697 | 0 | #ifdef INET |
7698 | 0 | if (IN6_IS_ADDR_V4MAPPED(&sin6->sin6_addr)) { |
7699 | 0 | if ((inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) && |
7700 | 0 | SCTP_IPV6_V6ONLY(inp)) { |
7701 | | /* can't bind v4-mapped on PF_INET sockets */ |
7702 | 0 | SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTPUTIL, EINVAL); |
7703 | 0 | *error = EINVAL; |
7704 | 0 | return; |
7705 | 0 | } |
7706 | 0 | in6_sin6_2_sin(&sin, sin6); |
7707 | 0 | addr_to_use = (struct sockaddr *)&sin; |
7708 | 0 | } else { |
7709 | 0 | addr_to_use = sa; |
7710 | 0 | } |
7711 | | #else |
7712 | | addr_to_use = sa; |
7713 | | #endif |
7714 | 0 | break; |
7715 | 0 | #endif |
7716 | 0 | #ifdef INET |
7717 | 0 | case AF_INET: |
7718 | | #ifdef HAVE_SA_LEN |
7719 | | if (sa->sa_len != sizeof(struct sockaddr_in)) { |
7720 | | SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTPUTIL, EINVAL); |
7721 | | *error = EINVAL; |
7722 | | return; |
7723 | | } |
7724 | | #endif |
7725 | 0 | if ((inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) && |
7726 | 0 | SCTP_IPV6_V6ONLY(inp)) { |
7727 | | /* can't bind v4 on PF_INET sockets */ |
7728 | 0 | SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTPUTIL, EINVAL); |
7729 | 0 | *error = EINVAL; |
7730 | 0 | return; |
7731 | 0 | } |
7732 | 0 | sinp = (struct sockaddr_in *)sa; |
7733 | 0 | port = sinp->sin_port; |
7734 | 0 | addr_to_use = sa; |
7735 | 0 | break; |
7736 | 0 | #endif |
7737 | 0 | default: |
7738 | 0 | SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTPUTIL, EINVAL); |
7739 | 0 | *error = EINVAL; |
7740 | 0 | return; |
7741 | 0 | } |
7742 | 0 | if (inp->sctp_flags & SCTP_PCB_FLAGS_UNBOUND) { |
7743 | | #if !(defined(_WIN32) || defined(__Userspace__)) |
7744 | | if (p == NULL) { |
7745 | | /* Can't get proc for Net/Open BSD */ |
7746 | | SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTPUTIL, EINVAL); |
7747 | | *error = EINVAL; |
7748 | | return; |
7749 | | } |
7750 | | #endif |
7751 | 0 | *error = sctp_inpcb_bind(so, addr_to_use, NULL, p); |
7752 | 0 | return; |
7753 | 0 | } |
7754 | | /* Validate the incoming port. */ |
7755 | 0 | if ((port != 0) && (port != inp->sctp_lport)) { |
7756 | 0 | SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTPUTIL, EINVAL); |
7757 | 0 | *error = EINVAL; |
7758 | 0 | return; |
7759 | 0 | } |
7760 | 0 | lep = sctp_pcb_findep(addr_to_use, 1, 0, vrf_id); |
7761 | 0 | if (lep == NULL) { |
7762 | | /* add the address */ |
7763 | 0 | *error = sctp_addr_mgmt_ep_sa(inp, addr_to_use, |
7764 | 0 | SCTP_ADD_IP_ADDRESS, vrf_id); |
7765 | 0 | } else { |
7766 | 0 | if (lep != inp) { |
7767 | 0 | *error = EADDRINUSE; |
7768 | 0 | } |
7769 | 0 | SCTP_INP_DECR_REF(lep); |
7770 | 0 | } |
7771 | 0 | } |
7772 | | |
7773 | | /* |
7774 | | * sctp_bindx(DELETE) for one address. |
7775 | | * assumes all arguments are valid/checked by caller. |
7776 | | */ |
7777 | | void |
7778 | | sctp_bindx_delete_address(struct sctp_inpcb *inp, |
7779 | | struct sockaddr *sa, uint32_t vrf_id, int *error) |
7780 | 0 | { |
7781 | 0 | struct sockaddr *addr_to_use; |
7782 | 0 | #if defined(INET) && defined(INET6) |
7783 | 0 | struct sockaddr_in6 *sin6; |
7784 | 0 | struct sockaddr_in sin; |
7785 | 0 | #endif |
7786 | | #ifdef SCTP_MVRF |
7787 | | int i; |
7788 | | #endif |
7789 | | |
7790 | | /* see if we're bound all already! */ |
7791 | 0 | if (inp->sctp_flags & SCTP_PCB_FLAGS_BOUNDALL) { |
7792 | 0 | SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTPUTIL, EINVAL); |
7793 | 0 | *error = EINVAL; |
7794 | 0 | return; |
7795 | 0 | } |
7796 | | #ifdef SCTP_MVRF |
7797 | | /* Is the VRF one we have */ |
7798 | | for (i = 0; i < inp->num_vrfs; i++) { |
7799 | | if (vrf_id == inp->m_vrf_ids[i]) { |
7800 | | break; |
7801 | | } |
7802 | | } |
7803 | | if (i == inp->num_vrfs) { |
7804 | | SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTPUTIL, EINVAL); |
7805 | | *error = EINVAL; |
7806 | | return; |
7807 | | } |
7808 | | #endif |
7809 | 0 | switch (sa->sa_family) { |
7810 | 0 | #ifdef INET6 |
7811 | 0 | case AF_INET6: |
7812 | | #ifdef HAVE_SA_LEN |
7813 | | if (sa->sa_len != sizeof(struct sockaddr_in6)) { |
7814 | | SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTPUTIL, EINVAL); |
7815 | | *error = EINVAL; |
7816 | | return; |
7817 | | } |
7818 | | #endif |
7819 | 0 | if ((inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) == 0) { |
7820 | | /* can only bind v6 on PF_INET6 sockets */ |
7821 | 0 | SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTPUTIL, EINVAL); |
7822 | 0 | *error = EINVAL; |
7823 | 0 | return; |
7824 | 0 | } |
7825 | 0 | #ifdef INET |
7826 | 0 | sin6 = (struct sockaddr_in6 *)sa; |
7827 | 0 | if (IN6_IS_ADDR_V4MAPPED(&sin6->sin6_addr)) { |
7828 | 0 | if ((inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) && |
7829 | 0 | SCTP_IPV6_V6ONLY(inp)) { |
7830 | | /* can't bind mapped-v4 on PF_INET sockets */ |
7831 | 0 | SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTPUTIL, EINVAL); |
7832 | 0 | *error = EINVAL; |
7833 | 0 | return; |
7834 | 0 | } |
7835 | 0 | in6_sin6_2_sin(&sin, sin6); |
7836 | 0 | addr_to_use = (struct sockaddr *)&sin; |
7837 | 0 | } else { |
7838 | 0 | addr_to_use = sa; |
7839 | 0 | } |
7840 | | #else |
7841 | | addr_to_use = sa; |
7842 | | #endif |
7843 | 0 | break; |
7844 | 0 | #endif |
7845 | 0 | #ifdef INET |
7846 | 0 | case AF_INET: |
7847 | | #ifdef HAVE_SA_LEN |
7848 | | if (sa->sa_len != sizeof(struct sockaddr_in)) { |
7849 | | SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTPUTIL, EINVAL); |
7850 | | *error = EINVAL; |
7851 | | return; |
7852 | | } |
7853 | | #endif |
7854 | 0 | if ((inp->sctp_flags & SCTP_PCB_FLAGS_BOUND_V6) && |
7855 | 0 | SCTP_IPV6_V6ONLY(inp)) { |
7856 | | /* can't bind v4 on PF_INET sockets */ |
7857 | 0 | SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTPUTIL, EINVAL); |
7858 | 0 | *error = EINVAL; |
7859 | 0 | return; |
7860 | 0 | } |
7861 | 0 | addr_to_use = sa; |
7862 | 0 | break; |
7863 | 0 | #endif |
7864 | 0 | default: |
7865 | 0 | SCTP_LTRACE_ERR_RET(inp, NULL, NULL, SCTP_FROM_SCTPUTIL, EINVAL); |
7866 | 0 | *error = EINVAL; |
7867 | 0 | return; |
7868 | 0 | } |
7869 | | /* No lock required mgmt_ep_sa does its own locking. */ |
7870 | 0 | *error = sctp_addr_mgmt_ep_sa(inp, addr_to_use, SCTP_DEL_IP_ADDRESS, |
7871 | 0 | vrf_id); |
7872 | 0 | } |
7873 | | |
7874 | | /* |
7875 | | * returns the valid local address count for an assoc, taking into account |
7876 | | * all scoping rules |
7877 | | */ |
7878 | | int |
7879 | | sctp_local_addr_count(struct sctp_tcb *stcb) |
7880 | 0 | { |
7881 | 0 | int loopback_scope; |
7882 | 0 | #if defined(INET) |
7883 | 0 | int ipv4_local_scope, ipv4_addr_legal; |
7884 | 0 | #endif |
7885 | 0 | #if defined(INET6) |
7886 | 0 | int local_scope, site_scope, ipv6_addr_legal; |
7887 | 0 | #endif |
7888 | 0 | #if defined(__Userspace__) |
7889 | 0 | int conn_addr_legal; |
7890 | 0 | #endif |
7891 | 0 | struct sctp_vrf *vrf; |
7892 | 0 | struct sctp_ifn *sctp_ifn; |
7893 | 0 | struct sctp_ifa *sctp_ifa; |
7894 | 0 | int count = 0; |
7895 | | |
7896 | | /* Turn on all the appropriate scopes */ |
7897 | 0 | loopback_scope = stcb->asoc.scope.loopback_scope; |
7898 | 0 | #if defined(INET) |
7899 | 0 | ipv4_local_scope = stcb->asoc.scope.ipv4_local_scope; |
7900 | 0 | ipv4_addr_legal = stcb->asoc.scope.ipv4_addr_legal; |
7901 | 0 | #endif |
7902 | 0 | #if defined(INET6) |
7903 | 0 | local_scope = stcb->asoc.scope.local_scope; |
7904 | 0 | site_scope = stcb->asoc.scope.site_scope; |
7905 | 0 | ipv6_addr_legal = stcb->asoc.scope.ipv6_addr_legal; |
7906 | 0 | #endif |
7907 | 0 | #if defined(__Userspace__) |
7908 | 0 | conn_addr_legal = stcb->asoc.scope.conn_addr_legal; |
7909 | 0 | #endif |
7910 | 0 | SCTP_IPI_ADDR_RLOCK(); |
7911 | 0 | vrf = sctp_find_vrf(stcb->asoc.vrf_id); |
7912 | 0 | if (vrf == NULL) { |
7913 | | /* no vrf, no addresses */ |
7914 | 0 | SCTP_IPI_ADDR_RUNLOCK(); |
7915 | 0 | return (0); |
7916 | 0 | } |
7917 | | |
7918 | 0 | if (stcb->sctp_ep->sctp_flags & SCTP_PCB_FLAGS_BOUNDALL) { |
7919 | | /* |
7920 | | * bound all case: go through all ifns on the vrf |
7921 | | */ |
7922 | 0 | LIST_FOREACH(sctp_ifn, &vrf->ifnlist, next_ifn) { |
7923 | 0 | if ((loopback_scope == 0) && |
7924 | 0 | SCTP_IFN_IS_IFT_LOOP(sctp_ifn)) { |
7925 | 0 | continue; |
7926 | 0 | } |
7927 | 0 | LIST_FOREACH(sctp_ifa, &sctp_ifn->ifalist, next_ifa) { |
7928 | 0 | if (sctp_is_addr_restricted(stcb, sctp_ifa)) |
7929 | 0 | continue; |
7930 | 0 | switch (sctp_ifa->address.sa.sa_family) { |
7931 | 0 | #ifdef INET |
7932 | 0 | case AF_INET: |
7933 | 0 | if (ipv4_addr_legal) { |
7934 | 0 | struct sockaddr_in *sin; |
7935 | |
|
7936 | 0 | sin = &sctp_ifa->address.sin; |
7937 | 0 | if (sin->sin_addr.s_addr == 0) { |
7938 | | /* skip unspecified addrs */ |
7939 | 0 | continue; |
7940 | 0 | } |
7941 | | #if defined(__FreeBSD__) && !defined(__Userspace__) |
7942 | | if (prison_check_ip4(stcb->sctp_ep->ip_inp.inp.inp_cred, |
7943 | | &sin->sin_addr) != 0) { |
7944 | | continue; |
7945 | | } |
7946 | | #endif |
7947 | 0 | if ((ipv4_local_scope == 0) && |
7948 | 0 | (IN4_ISPRIVATE_ADDRESS(&sin->sin_addr))) { |
7949 | 0 | continue; |
7950 | 0 | } |
7951 | | /* count this one */ |
7952 | 0 | count++; |
7953 | 0 | } else { |
7954 | 0 | continue; |
7955 | 0 | } |
7956 | 0 | break; |
7957 | 0 | #endif |
7958 | 0 | #ifdef INET6 |
7959 | 0 | case AF_INET6: |
7960 | 0 | if (ipv6_addr_legal) { |
7961 | 0 | struct sockaddr_in6 *sin6; |
7962 | |
|
7963 | | #if defined(SCTP_EMBEDDED_V6_SCOPE) && !defined(SCTP_KAME) |
7964 | | struct sockaddr_in6 lsa6; |
7965 | | #endif |
7966 | 0 | sin6 = &sctp_ifa->address.sin6; |
7967 | 0 | if (IN6_IS_ADDR_UNSPECIFIED(&sin6->sin6_addr)) { |
7968 | 0 | continue; |
7969 | 0 | } |
7970 | | #if defined(__FreeBSD__) && !defined(__Userspace__) |
7971 | | if (prison_check_ip6(stcb->sctp_ep->ip_inp.inp.inp_cred, |
7972 | | &sin6->sin6_addr) != 0) { |
7973 | | continue; |
7974 | | } |
7975 | | #endif |
7976 | 0 | if (IN6_IS_ADDR_LINKLOCAL(&sin6->sin6_addr)) { |
7977 | 0 | if (local_scope == 0) |
7978 | 0 | continue; |
7979 | | #if defined(SCTP_EMBEDDED_V6_SCOPE) |
7980 | | if (sin6->sin6_scope_id == 0) { |
7981 | | #ifdef SCTP_KAME |
7982 | | if (sa6_recoverscope(sin6) != 0) |
7983 | | /* |
7984 | | * bad link |
7985 | | * local |
7986 | | * address |
7987 | | */ |
7988 | | continue; |
7989 | | #else |
7990 | | lsa6 = *sin6; |
7991 | | if (in6_recoverscope(&lsa6, |
7992 | | &lsa6.sin6_addr, |
7993 | | NULL)) |
7994 | | /* |
7995 | | * bad link |
7996 | | * local |
7997 | | * address |
7998 | | */ |
7999 | | continue; |
8000 | | sin6 = &lsa6; |
8001 | | #endif /* SCTP_KAME */ |
8002 | | } |
8003 | | #endif /* SCTP_EMBEDDED_V6_SCOPE */ |
8004 | 0 | } |
8005 | 0 | if ((site_scope == 0) && |
8006 | 0 | (IN6_IS_ADDR_SITELOCAL(&sin6->sin6_addr))) { |
8007 | 0 | continue; |
8008 | 0 | } |
8009 | | /* count this one */ |
8010 | 0 | count++; |
8011 | 0 | } |
8012 | 0 | break; |
8013 | 0 | #endif |
8014 | 0 | #if defined(__Userspace__) |
8015 | 0 | case AF_CONN: |
8016 | 0 | if (conn_addr_legal) { |
8017 | 0 | count++; |
8018 | 0 | } |
8019 | 0 | break; |
8020 | 0 | #endif |
8021 | 0 | default: |
8022 | | /* TSNH */ |
8023 | 0 | break; |
8024 | 0 | } |
8025 | 0 | } |
8026 | 0 | } |
8027 | 0 | } else { |
8028 | | /* |
8029 | | * subset bound case |
8030 | | */ |
8031 | 0 | struct sctp_laddr *laddr; |
8032 | 0 | LIST_FOREACH(laddr, &stcb->sctp_ep->sctp_addr_list, |
8033 | 0 | sctp_nxt_addr) { |
8034 | 0 | if (sctp_is_addr_restricted(stcb, laddr->ifa)) { |
8035 | 0 | continue; |
8036 | 0 | } |
8037 | | /* count this one */ |
8038 | 0 | count++; |
8039 | 0 | } |
8040 | 0 | } |
8041 | 0 | SCTP_IPI_ADDR_RUNLOCK(); |
8042 | 0 | return (count); |
8043 | 0 | } |
8044 | | |
8045 | | #if defined(SCTP_LOCAL_TRACE_BUF) |
8046 | | |
8047 | | void |
8048 | | sctp_log_trace(uint32_t subsys, const char *str SCTP_UNUSED, uint32_t a, uint32_t b, uint32_t c, uint32_t d, uint32_t e, uint32_t f) |
8049 | | { |
8050 | | uint32_t saveindex, newindex; |
8051 | | |
8052 | | #if defined(_WIN32) && !defined(__Userspace__) |
8053 | | if (SCTP_BASE_SYSCTL(sctp_log) == NULL) { |
8054 | | return; |
8055 | | } |
8056 | | do { |
8057 | | saveindex = SCTP_BASE_SYSCTL(sctp_log)->index; |
8058 | | if (saveindex >= SCTP_MAX_LOGGING_SIZE) { |
8059 | | newindex = 1; |
8060 | | } else { |
8061 | | newindex = saveindex + 1; |
8062 | | } |
8063 | | } while (atomic_cmpset_int(&SCTP_BASE_SYSCTL(sctp_log)->index, saveindex, newindex) == 0); |
8064 | | if (saveindex >= SCTP_MAX_LOGGING_SIZE) { |
8065 | | saveindex = 0; |
8066 | | } |
8067 | | SCTP_BASE_SYSCTL(sctp_log)->entry[saveindex].timestamp = SCTP_GET_CYCLECOUNT; |
8068 | | SCTP_BASE_SYSCTL(sctp_log)->entry[saveindex].subsys = subsys; |
8069 | | SCTP_BASE_SYSCTL(sctp_log)->entry[saveindex].params[0] = a; |
8070 | | SCTP_BASE_SYSCTL(sctp_log)->entry[saveindex].params[1] = b; |
8071 | | SCTP_BASE_SYSCTL(sctp_log)->entry[saveindex].params[2] = c; |
8072 | | SCTP_BASE_SYSCTL(sctp_log)->entry[saveindex].params[3] = d; |
8073 | | SCTP_BASE_SYSCTL(sctp_log)->entry[saveindex].params[4] = e; |
8074 | | SCTP_BASE_SYSCTL(sctp_log)->entry[saveindex].params[5] = f; |
8075 | | #else |
8076 | | do { |
8077 | | saveindex = SCTP_BASE_SYSCTL(sctp_log).index; |
8078 | | if (saveindex >= SCTP_MAX_LOGGING_SIZE) { |
8079 | | newindex = 1; |
8080 | | } else { |
8081 | | newindex = saveindex + 1; |
8082 | | } |
8083 | | } while (atomic_cmpset_int(&SCTP_BASE_SYSCTL(sctp_log).index, saveindex, newindex) == 0); |
8084 | | if (saveindex >= SCTP_MAX_LOGGING_SIZE) { |
8085 | | saveindex = 0; |
8086 | | } |
8087 | | SCTP_BASE_SYSCTL(sctp_log).entry[saveindex].timestamp = SCTP_GET_CYCLECOUNT; |
8088 | | SCTP_BASE_SYSCTL(sctp_log).entry[saveindex].subsys = subsys; |
8089 | | SCTP_BASE_SYSCTL(sctp_log).entry[saveindex].params[0] = a; |
8090 | | SCTP_BASE_SYSCTL(sctp_log).entry[saveindex].params[1] = b; |
8091 | | SCTP_BASE_SYSCTL(sctp_log).entry[saveindex].params[2] = c; |
8092 | | SCTP_BASE_SYSCTL(sctp_log).entry[saveindex].params[3] = d; |
8093 | | SCTP_BASE_SYSCTL(sctp_log).entry[saveindex].params[4] = e; |
8094 | | SCTP_BASE_SYSCTL(sctp_log).entry[saveindex].params[5] = f; |
8095 | | #endif |
8096 | | } |
8097 | | |
8098 | | #endif |
8099 | | #if defined(__FreeBSD__) && !defined(__Userspace__) |
8100 | | static bool |
8101 | | sctp_recv_udp_tunneled_packet(struct mbuf *m, int off, struct inpcb *inp, |
8102 | | const struct sockaddr *sa SCTP_UNUSED, void *ctx SCTP_UNUSED) |
8103 | | { |
8104 | | struct ip *iph; |
8105 | | #ifdef INET6 |
8106 | | struct ip6_hdr *ip6; |
8107 | | #endif |
8108 | | struct mbuf *sp, *last; |
8109 | | struct udphdr *uhdr; |
8110 | | uint16_t port; |
8111 | | |
8112 | | if ((m->m_flags & M_PKTHDR) == 0) { |
8113 | | /* Can't handle one that is not a pkt hdr */ |
8114 | | goto out; |
8115 | | } |
8116 | | /* Pull the src port */ |
8117 | | iph = mtod(m, struct ip *); |
8118 | | uhdr = (struct udphdr *)((caddr_t)iph + off); |
8119 | | port = uhdr->uh_sport; |
8120 | | /* Split out the mbuf chain. Leave the |
8121 | | * IP header in m, place the |
8122 | | * rest in the sp. |
8123 | | */ |
8124 | | sp = m_split(m, off, M_NOWAIT); |
8125 | | if (sp == NULL) { |
8126 | | /* Gak, drop packet, we can't do a split */ |
8127 | | goto out; |
8128 | | } |
8129 | | if (sp->m_pkthdr.len < sizeof(struct udphdr) + sizeof(struct sctphdr)) { |
8130 | | /* Gak, packet can't have an SCTP header in it - too small */ |
8131 | | m_freem(sp); |
8132 | | goto out; |
8133 | | } |
8134 | | /* Now pull up the UDP header and SCTP header together */ |
8135 | | sp = m_pullup(sp, sizeof(struct udphdr) + sizeof(struct sctphdr)); |
8136 | | if (sp == NULL) { |
8137 | | /* Gak pullup failed */ |
8138 | | goto out; |
8139 | | } |
8140 | | /* Trim out the UDP header */ |
8141 | | m_adj(sp, sizeof(struct udphdr)); |
8142 | | |
8143 | | /* Now reconstruct the mbuf chain */ |
8144 | | for (last = m; last->m_next; last = last->m_next); |
8145 | | last->m_next = sp; |
8146 | | m->m_pkthdr.len += sp->m_pkthdr.len; |
8147 | | /* |
8148 | | * The CSUM_DATA_VALID flags indicates that the HW checked the |
8149 | | * UDP checksum and it was valid. |
8150 | | * Since CSUM_DATA_VALID == CSUM_SCTP_VALID this would imply that |
8151 | | * the HW also verified the SCTP checksum. Therefore, clear the bit. |
8152 | | */ |
8153 | | SCTPDBG(SCTP_DEBUG_CRCOFFLOAD, |
8154 | | "sctp_recv_udp_tunneled_packet(): Packet of length %d received on %s with csum_flags 0x%b.\n", |
8155 | | m->m_pkthdr.len, |
8156 | | if_name(m->m_pkthdr.rcvif), |
8157 | | (int)m->m_pkthdr.csum_flags, CSUM_BITS); |
8158 | | m->m_pkthdr.csum_flags &= ~CSUM_DATA_VALID; |
8159 | | iph = mtod(m, struct ip *); |
8160 | | switch (iph->ip_v) { |
8161 | | #ifdef INET |
8162 | | case IPVERSION: |
8163 | | iph->ip_len = htons(ntohs(iph->ip_len) - sizeof(struct udphdr)); |
8164 | | sctp_input_with_port(m, off, port); |
8165 | | break; |
8166 | | #endif |
8167 | | #ifdef INET6 |
8168 | | case IPV6_VERSION >> 4: |
8169 | | ip6 = mtod(m, struct ip6_hdr *); |
8170 | | ip6->ip6_plen = htons(ntohs(ip6->ip6_plen) - sizeof(struct udphdr)); |
8171 | | sctp6_input_with_port(&m, &off, port); |
8172 | | break; |
8173 | | #endif |
8174 | | default: |
8175 | | goto out; |
8176 | | break; |
8177 | | } |
8178 | | return (true); |
8179 | | out: |
8180 | | m_freem(m); |
8181 | | |
8182 | | return (true); |
8183 | | } |
8184 | | |
8185 | | #ifdef INET |
8186 | | static void |
8187 | | sctp_recv_icmp_tunneled_packet(udp_tun_icmp_param_t param) |
8188 | | { |
8189 | | struct icmp *icmp = param.icmp; |
8190 | | struct ip *outer_ip, *inner_ip; |
8191 | | struct sctphdr *sh; |
8192 | | struct udphdr *udp; |
8193 | | struct sctp_inpcb *inp; |
8194 | | struct sctp_tcb *stcb; |
8195 | | struct sctp_nets *net; |
8196 | | struct sctp_init_chunk *ch; |
8197 | | struct sockaddr_in src, dst; |
8198 | | uint8_t type, code; |
8199 | | |
8200 | | inner_ip = &icmp->icmp_ip; |
8201 | | outer_ip = (struct ip *)((caddr_t)icmp - sizeof(struct ip)); |
8202 | | if (ntohs(outer_ip->ip_len) < |
8203 | | sizeof(struct ip) + 8 + (inner_ip->ip_hl << 2) + sizeof(struct udphdr) + 8) { |
8204 | | return; |
8205 | | } |
8206 | | udp = (struct udphdr *)((caddr_t)inner_ip + (inner_ip->ip_hl << 2)); |
8207 | | sh = (struct sctphdr *)(udp + 1); |
8208 | | memset(&src, 0, sizeof(struct sockaddr_in)); |
8209 | | src.sin_family = AF_INET; |
8210 | | #ifdef HAVE_SIN_LEN |
8211 | | src.sin_len = sizeof(struct sockaddr_in); |
8212 | | #endif |
8213 | | src.sin_port = sh->src_port; |
8214 | | src.sin_addr = inner_ip->ip_src; |
8215 | | memset(&dst, 0, sizeof(struct sockaddr_in)); |
8216 | | dst.sin_family = AF_INET; |
8217 | | #ifdef HAVE_SIN_LEN |
8218 | | dst.sin_len = sizeof(struct sockaddr_in); |
8219 | | #endif |
8220 | | dst.sin_port = sh->dest_port; |
8221 | | dst.sin_addr = inner_ip->ip_dst; |
8222 | | /* |
8223 | | * 'dst' holds the dest of the packet that failed to be sent. |
8224 | | * 'src' holds our local endpoint address. Thus we reverse |
8225 | | * the dst and the src in the lookup. |
8226 | | */ |
8227 | | inp = NULL; |
8228 | | net = NULL; |
8229 | | stcb = sctp_findassociation_addr_sa((struct sockaddr *)&dst, |
8230 | | (struct sockaddr *)&src, |
8231 | | &inp, &net, 1, |
8232 | | SCTP_DEFAULT_VRFID); |
8233 | | if ((stcb != NULL) && |
8234 | | (net != NULL) && |
8235 | | (inp != NULL)) { |
8236 | | /* Check the UDP port numbers */ |
8237 | | if ((udp->uh_dport != net->port) || |
8238 | | (udp->uh_sport != htons(SCTP_BASE_SYSCTL(sctp_udp_tunneling_port)))) { |
8239 | | SCTP_TCB_UNLOCK(stcb); |
8240 | | return; |
8241 | | } |
8242 | | /* Check the verification tag */ |
8243 | | if (ntohl(sh->v_tag) != 0) { |
8244 | | /* |
8245 | | * This must be the verification tag used |
8246 | | * for sending out packets. We don't |
8247 | | * consider packets reflecting the |
8248 | | * verification tag. |
8249 | | */ |
8250 | | if (ntohl(sh->v_tag) != stcb->asoc.peer_vtag) { |
8251 | | SCTP_TCB_UNLOCK(stcb); |
8252 | | return; |
8253 | | } |
8254 | | } else { |
8255 | | if (ntohs(outer_ip->ip_len) >= |
8256 | | sizeof(struct ip) + |
8257 | | 8 + (inner_ip->ip_hl << 2) + 8 + 20) { |
8258 | | /* |
8259 | | * In this case we can check if we |
8260 | | * got an INIT chunk and if the |
8261 | | * initiate tag matches. |
8262 | | */ |
8263 | | ch = (struct sctp_init_chunk *)(sh + 1); |
8264 | | if ((ch->ch.chunk_type != SCTP_INITIATION) || |
8265 | | (ntohl(ch->init.initiate_tag) != stcb->asoc.my_vtag)) { |
8266 | | SCTP_TCB_UNLOCK(stcb); |
8267 | | return; |
8268 | | } |
8269 | | } else { |
8270 | | SCTP_TCB_UNLOCK(stcb); |
8271 | | return; |
8272 | | } |
8273 | | } |
8274 | | type = icmp->icmp_type; |
8275 | | code = icmp->icmp_code; |
8276 | | if ((type == ICMP_UNREACH) && |
8277 | | (code == ICMP_UNREACH_PORT)) { |
8278 | | code = ICMP_UNREACH_PROTOCOL; |
8279 | | } |
8280 | | sctp_notify(inp, stcb, net, type, code, |
8281 | | ntohs(inner_ip->ip_len), |
8282 | | (uint32_t)ntohs(icmp->icmp_nextmtu)); |
8283 | | #if defined(__Userspace__) |
8284 | | if (((stcb->sctp_ep->sctp_flags & SCTP_PCB_FLAGS_SOCKET_GONE) == 0) && |
8285 | | (stcb->sctp_socket != NULL)) { |
8286 | | struct socket *upcall_socket; |
8287 | | |
8288 | | upcall_socket = stcb->sctp_socket; |
8289 | | SOCK_LOCK(upcall_socket); |
8290 | | soref(upcall_socket); |
8291 | | SOCK_UNLOCK(upcall_socket); |
8292 | | if ((upcall_socket->so_upcall != NULL) && |
8293 | | (upcall_socket->so_error != 0)) { |
8294 | | (*upcall_socket->so_upcall)(upcall_socket, upcall_socket->so_upcallarg, M_NOWAIT); |
8295 | | } |
8296 | | ACCEPT_LOCK(); |
8297 | | SOCK_LOCK(upcall_socket); |
8298 | | sorele(upcall_socket); |
8299 | | } |
8300 | | #endif |
8301 | | } else { |
8302 | | if ((stcb == NULL) && (inp != NULL)) { |
8303 | | /* reduce ref-count */ |
8304 | | SCTP_INP_WLOCK(inp); |
8305 | | SCTP_INP_DECR_REF(inp); |
8306 | | SCTP_INP_WUNLOCK(inp); |
8307 | | } |
8308 | | if (stcb) { |
8309 | | SCTP_TCB_UNLOCK(stcb); |
8310 | | } |
8311 | | } |
8312 | | return; |
8313 | | } |
8314 | | #endif |
8315 | | |
8316 | | #ifdef INET6 |
8317 | | static void |
8318 | | sctp_recv_icmp6_tunneled_packet(udp_tun_icmp_param_t param) |
8319 | | { |
8320 | | struct ip6ctlparam *ip6cp = param.ip6cp; |
8321 | | struct sctp_inpcb *inp; |
8322 | | struct sctp_tcb *stcb; |
8323 | | struct sctp_nets *net; |
8324 | | struct sctphdr sh; |
8325 | | struct udphdr udp; |
8326 | | struct sockaddr_in6 src, dst; |
8327 | | uint8_t type, code; |
8328 | | |
8329 | | /* |
8330 | | * XXX: We assume that when IPV6 is non NULL, M and OFF are |
8331 | | * valid. |
8332 | | */ |
8333 | | if (ip6cp->ip6c_m == NULL) { |
8334 | | return; |
8335 | | } |
8336 | | /* Check if we can safely examine the ports and the |
8337 | | * verification tag of the SCTP common header. |
8338 | | */ |
8339 | | if (ip6cp->ip6c_m->m_pkthdr.len < |
8340 | | ip6cp->ip6c_off + sizeof(struct udphdr)+ offsetof(struct sctphdr, checksum)) { |
8341 | | return; |
8342 | | } |
8343 | | /* Copy out the UDP header. */ |
8344 | | memset(&udp, 0, sizeof(struct udphdr)); |
8345 | | m_copydata(ip6cp->ip6c_m, |
8346 | | ip6cp->ip6c_off, |
8347 | | sizeof(struct udphdr), |
8348 | | (caddr_t)&udp); |
8349 | | /* Copy out the port numbers and the verification tag. */ |
8350 | | memset(&sh, 0, sizeof(struct sctphdr)); |
8351 | | m_copydata(ip6cp->ip6c_m, |
8352 | | ip6cp->ip6c_off + sizeof(struct udphdr), |
8353 | | sizeof(uint16_t) + sizeof(uint16_t) + sizeof(uint32_t), |
8354 | | (caddr_t)&sh); |
8355 | | memset(&src, 0, sizeof(struct sockaddr_in6)); |
8356 | | src.sin6_family = AF_INET6; |
8357 | | #ifdef HAVE_SIN6_LEN |
8358 | | src.sin6_len = sizeof(struct sockaddr_in6); |
8359 | | #endif |
8360 | | src.sin6_port = sh.src_port; |
8361 | | src.sin6_addr = ip6cp->ip6c_ip6->ip6_src; |
8362 | | #if defined(__FreeBSD__) && !defined(__Userspace__) |
8363 | | if (in6_setscope(&src.sin6_addr, ip6cp->ip6c_m->m_pkthdr.rcvif, NULL) != 0) { |
8364 | | return; |
8365 | | } |
8366 | | #endif |
8367 | | memset(&dst, 0, sizeof(struct sockaddr_in6)); |
8368 | | dst.sin6_family = AF_INET6; |
8369 | | #ifdef HAVE_SIN6_LEN |
8370 | | dst.sin6_len = sizeof(struct sockaddr_in6); |
8371 | | #endif |
8372 | | dst.sin6_port = sh.dest_port; |
8373 | | dst.sin6_addr = ip6cp->ip6c_ip6->ip6_dst; |
8374 | | #if defined(__FreeBSD__) && !defined(__Userspace__) |
8375 | | if (in6_setscope(&dst.sin6_addr, ip6cp->ip6c_m->m_pkthdr.rcvif, NULL) != 0) { |
8376 | | return; |
8377 | | } |
8378 | | #endif |
8379 | | inp = NULL; |
8380 | | net = NULL; |
8381 | | stcb = sctp_findassociation_addr_sa((struct sockaddr *)&dst, |
8382 | | (struct sockaddr *)&src, |
8383 | | &inp, &net, 1, SCTP_DEFAULT_VRFID); |
8384 | | if ((stcb != NULL) && |
8385 | | (net != NULL) && |
8386 | | (inp != NULL)) { |
8387 | | /* Check the UDP port numbers */ |
8388 | | if ((udp.uh_dport != net->port) || |
8389 | | (udp.uh_sport != htons(SCTP_BASE_SYSCTL(sctp_udp_tunneling_port)))) { |
8390 | | SCTP_TCB_UNLOCK(stcb); |
8391 | | return; |
8392 | | } |
8393 | | /* Check the verification tag */ |
8394 | | if (ntohl(sh.v_tag) != 0) { |
8395 | | /* |
8396 | | * This must be the verification tag used for |
8397 | | * sending out packets. We don't consider |
8398 | | * packets reflecting the verification tag. |
8399 | | */ |
8400 | | if (ntohl(sh.v_tag) != stcb->asoc.peer_vtag) { |
8401 | | SCTP_TCB_UNLOCK(stcb); |
8402 | | return; |
8403 | | } |
8404 | | } else { |
8405 | | #if defined(__FreeBSD__) && !defined(__Userspace__) |
8406 | | if (ip6cp->ip6c_m->m_pkthdr.len >= |
8407 | | ip6cp->ip6c_off + sizeof(struct udphdr) + |
8408 | | sizeof(struct sctphdr) + |
8409 | | sizeof(struct sctp_chunkhdr) + |
8410 | | offsetof(struct sctp_init, a_rwnd)) { |
8411 | | /* |
8412 | | * In this case we can check if we |
8413 | | * got an INIT chunk and if the |
8414 | | * initiate tag matches. |
8415 | | */ |
8416 | | uint32_t initiate_tag; |
8417 | | uint8_t chunk_type; |
8418 | | |
8419 | | m_copydata(ip6cp->ip6c_m, |
8420 | | ip6cp->ip6c_off + |
8421 | | sizeof(struct udphdr) + |
8422 | | sizeof(struct sctphdr), |
8423 | | sizeof(uint8_t), |
8424 | | (caddr_t)&chunk_type); |
8425 | | m_copydata(ip6cp->ip6c_m, |
8426 | | ip6cp->ip6c_off + |
8427 | | sizeof(struct udphdr) + |
8428 | | sizeof(struct sctphdr) + |
8429 | | sizeof(struct sctp_chunkhdr), |
8430 | | sizeof(uint32_t), |
8431 | | (caddr_t)&initiate_tag); |
8432 | | if ((chunk_type != SCTP_INITIATION) || |
8433 | | (ntohl(initiate_tag) != stcb->asoc.my_vtag)) { |
8434 | | SCTP_TCB_UNLOCK(stcb); |
8435 | | return; |
8436 | | } |
8437 | | } else { |
8438 | | SCTP_TCB_UNLOCK(stcb); |
8439 | | return; |
8440 | | } |
8441 | | #else |
8442 | | SCTP_TCB_UNLOCK(stcb); |
8443 | | return; |
8444 | | #endif |
8445 | | } |
8446 | | type = ip6cp->ip6c_icmp6->icmp6_type; |
8447 | | code = ip6cp->ip6c_icmp6->icmp6_code; |
8448 | | if ((type == ICMP6_DST_UNREACH) && |
8449 | | (code == ICMP6_DST_UNREACH_NOPORT)) { |
8450 | | type = ICMP6_PARAM_PROB; |
8451 | | code = ICMP6_PARAMPROB_NEXTHEADER; |
8452 | | } |
8453 | | sctp6_notify(inp, stcb, net, type, code, |
8454 | | ntohl(ip6cp->ip6c_icmp6->icmp6_mtu)); |
8455 | | #if defined(__Userspace__) |
8456 | | if (((stcb->sctp_ep->sctp_flags & SCTP_PCB_FLAGS_SOCKET_GONE) == 0) && |
8457 | | (stcb->sctp_socket != NULL)) { |
8458 | | struct socket *upcall_socket; |
8459 | | |
8460 | | upcall_socket = stcb->sctp_socket; |
8461 | | SOCK_LOCK(upcall_socket); |
8462 | | soref(upcall_socket); |
8463 | | SOCK_UNLOCK(upcall_socket); |
8464 | | if ((upcall_socket->so_upcall != NULL) && |
8465 | | (upcall_socket->so_error != 0)) { |
8466 | | (*upcall_socket->so_upcall)(upcall_socket, upcall_socket->so_upcallarg, M_NOWAIT); |
8467 | | } |
8468 | | ACCEPT_LOCK(); |
8469 | | SOCK_LOCK(upcall_socket); |
8470 | | sorele(upcall_socket); |
8471 | | } |
8472 | | #endif |
8473 | | } else { |
8474 | | if ((stcb == NULL) && (inp != NULL)) { |
8475 | | /* reduce inp's ref-count */ |
8476 | | SCTP_INP_WLOCK(inp); |
8477 | | SCTP_INP_DECR_REF(inp); |
8478 | | SCTP_INP_WUNLOCK(inp); |
8479 | | } |
8480 | | if (stcb) { |
8481 | | SCTP_TCB_UNLOCK(stcb); |
8482 | | } |
8483 | | } |
8484 | | } |
8485 | | #endif |
8486 | | |
8487 | | void |
8488 | | sctp_over_udp_stop(void) |
8489 | | { |
8490 | | /* |
8491 | | * This function assumes sysctl caller holds sctp_sysctl_info_lock() for writing! |
8492 | | */ |
8493 | | #ifdef INET |
8494 | | if (SCTP_BASE_INFO(udp4_tun_socket) != NULL) { |
8495 | | soclose(SCTP_BASE_INFO(udp4_tun_socket)); |
8496 | | SCTP_BASE_INFO(udp4_tun_socket) = NULL; |
8497 | | } |
8498 | | #endif |
8499 | | #ifdef INET6 |
8500 | | if (SCTP_BASE_INFO(udp6_tun_socket) != NULL) { |
8501 | | soclose(SCTP_BASE_INFO(udp6_tun_socket)); |
8502 | | SCTP_BASE_INFO(udp6_tun_socket) = NULL; |
8503 | | } |
8504 | | #endif |
8505 | | } |
8506 | | |
8507 | | int |
8508 | | sctp_over_udp_start(void) |
8509 | | { |
8510 | | uint16_t port; |
8511 | | int ret; |
8512 | | #ifdef INET |
8513 | | struct sockaddr_in sin; |
8514 | | #endif |
8515 | | #ifdef INET6 |
8516 | | struct sockaddr_in6 sin6; |
8517 | | #endif |
8518 | | /* |
8519 | | * This function assumes sysctl caller holds sctp_sysctl_info_lock() for writing! |
8520 | | */ |
8521 | | port = SCTP_BASE_SYSCTL(sctp_udp_tunneling_port); |
8522 | | if (ntohs(port) == 0) { |
8523 | | /* Must have a port set */ |
8524 | | return (EINVAL); |
8525 | | } |
8526 | | #ifdef INET |
8527 | | if (SCTP_BASE_INFO(udp4_tun_socket) != NULL) { |
8528 | | /* Already running -- must stop first */ |
8529 | | return (EALREADY); |
8530 | | } |
8531 | | #endif |
8532 | | #ifdef INET6 |
8533 | | if (SCTP_BASE_INFO(udp6_tun_socket) != NULL) { |
8534 | | /* Already running -- must stop first */ |
8535 | | return (EALREADY); |
8536 | | } |
8537 | | #endif |
8538 | | #ifdef INET |
8539 | | if ((ret = socreate(PF_INET, &SCTP_BASE_INFO(udp4_tun_socket), |
8540 | | SOCK_DGRAM, IPPROTO_UDP, |
8541 | | curthread->td_ucred, curthread))) { |
8542 | | sctp_over_udp_stop(); |
8543 | | return (ret); |
8544 | | } |
8545 | | /* Call the special UDP hook. */ |
8546 | | if ((ret = udp_set_kernel_tunneling(SCTP_BASE_INFO(udp4_tun_socket), |
8547 | | sctp_recv_udp_tunneled_packet, |
8548 | | sctp_recv_icmp_tunneled_packet, |
8549 | | NULL))) { |
8550 | | sctp_over_udp_stop(); |
8551 | | return (ret); |
8552 | | } |
8553 | | /* Ok, we have a socket, bind it to the port. */ |
8554 | | memset(&sin, 0, sizeof(struct sockaddr_in)); |
8555 | | sin.sin_len = sizeof(struct sockaddr_in); |
8556 | | sin.sin_family = AF_INET; |
8557 | | sin.sin_port = htons(port); |
8558 | | if ((ret = sobind(SCTP_BASE_INFO(udp4_tun_socket), |
8559 | | (struct sockaddr *)&sin, curthread))) { |
8560 | | sctp_over_udp_stop(); |
8561 | | return (ret); |
8562 | | } |
8563 | | #endif |
8564 | | #ifdef INET6 |
8565 | | if ((ret = socreate(PF_INET6, &SCTP_BASE_INFO(udp6_tun_socket), |
8566 | | SOCK_DGRAM, IPPROTO_UDP, |
8567 | | curthread->td_ucred, curthread))) { |
8568 | | sctp_over_udp_stop(); |
8569 | | return (ret); |
8570 | | } |
8571 | | /* Call the special UDP hook. */ |
8572 | | if ((ret = udp_set_kernel_tunneling(SCTP_BASE_INFO(udp6_tun_socket), |
8573 | | sctp_recv_udp_tunneled_packet, |
8574 | | sctp_recv_icmp6_tunneled_packet, |
8575 | | NULL))) { |
8576 | | sctp_over_udp_stop(); |
8577 | | return (ret); |
8578 | | } |
8579 | | /* Ok, we have a socket, bind it to the port. */ |
8580 | | memset(&sin6, 0, sizeof(struct sockaddr_in6)); |
8581 | | sin6.sin6_len = sizeof(struct sockaddr_in6); |
8582 | | sin6.sin6_family = AF_INET6; |
8583 | | sin6.sin6_port = htons(port); |
8584 | | if ((ret = sobind(SCTP_BASE_INFO(udp6_tun_socket), |
8585 | | (struct sockaddr *)&sin6, curthread))) { |
8586 | | sctp_over_udp_stop(); |
8587 | | return (ret); |
8588 | | } |
8589 | | #endif |
8590 | | return (0); |
8591 | | } |
8592 | | #endif |
8593 | | |
8594 | | /* |
8595 | | * sctp_min_mtu ()returns the minimum of all non-zero arguments. |
8596 | | * If all arguments are zero, zero is returned. |
8597 | | */ |
8598 | | uint32_t |
8599 | | sctp_min_mtu(uint32_t mtu1, uint32_t mtu2, uint32_t mtu3) |
8600 | 0 | { |
8601 | 0 | if (mtu1 > 0) { |
8602 | 0 | if (mtu2 > 0) { |
8603 | 0 | if (mtu3 > 0) { |
8604 | 0 | return (min(mtu1, min(mtu2, mtu3))); |
8605 | 0 | } else { |
8606 | 0 | return (min(mtu1, mtu2)); |
8607 | 0 | } |
8608 | 0 | } else { |
8609 | 0 | if (mtu3 > 0) { |
8610 | 0 | return (min(mtu1, mtu3)); |
8611 | 0 | } else { |
8612 | 0 | return (mtu1); |
8613 | 0 | } |
8614 | 0 | } |
8615 | 0 | } else { |
8616 | 0 | if (mtu2 > 0) { |
8617 | 0 | if (mtu3 > 0) { |
8618 | 0 | return (min(mtu2, mtu3)); |
8619 | 0 | } else { |
8620 | 0 | return (mtu2); |
8621 | 0 | } |
8622 | 0 | } else { |
8623 | 0 | return (mtu3); |
8624 | 0 | } |
8625 | 0 | } |
8626 | 0 | } |
8627 | | |
8628 | | #if defined(__FreeBSD__) && !defined(__Userspace__) |
8629 | | void |
8630 | | sctp_hc_set_mtu(union sctp_sockstore *addr, uint16_t fibnum, uint32_t mtu) |
8631 | | { |
8632 | | struct in_conninfo inc; |
8633 | | |
8634 | | memset(&inc, 0, sizeof(struct in_conninfo)); |
8635 | | inc.inc_fibnum = fibnum; |
8636 | | switch (addr->sa.sa_family) { |
8637 | | #ifdef INET |
8638 | | case AF_INET: |
8639 | | inc.inc_faddr = addr->sin.sin_addr; |
8640 | | break; |
8641 | | #endif |
8642 | | #ifdef INET6 |
8643 | | case AF_INET6: |
8644 | | inc.inc_flags |= INC_ISIPV6; |
8645 | | inc.inc6_faddr = addr->sin6.sin6_addr; |
8646 | | break; |
8647 | | #endif |
8648 | | default: |
8649 | | return; |
8650 | | } |
8651 | | tcp_hc_updatemtu(&inc, (u_long)mtu); |
8652 | | } |
8653 | | |
8654 | | uint32_t |
8655 | | sctp_hc_get_mtu(union sctp_sockstore *addr, uint16_t fibnum) |
8656 | | { |
8657 | | struct in_conninfo inc; |
8658 | | |
8659 | | memset(&inc, 0, sizeof(struct in_conninfo)); |
8660 | | inc.inc_fibnum = fibnum; |
8661 | | switch (addr->sa.sa_family) { |
8662 | | #ifdef INET |
8663 | | case AF_INET: |
8664 | | inc.inc_faddr = addr->sin.sin_addr; |
8665 | | break; |
8666 | | #endif |
8667 | | #ifdef INET6 |
8668 | | case AF_INET6: |
8669 | | inc.inc_flags |= INC_ISIPV6; |
8670 | | inc.inc6_faddr = addr->sin6.sin6_addr; |
8671 | | break; |
8672 | | #endif |
8673 | | default: |
8674 | | return (0); |
8675 | | } |
8676 | | return ((uint32_t)tcp_hc_getmtu(&inc)); |
8677 | | } |
8678 | | #endif |
8679 | | |
8680 | | void |
8681 | | sctp_set_state(struct sctp_tcb *stcb, int new_state) |
8682 | 35.3k | { |
8683 | | #if defined(KDTRACE_HOOKS) |
8684 | | int old_state = stcb->asoc.state; |
8685 | | #endif |
8686 | | |
8687 | 35.3k | KASSERT((new_state & ~SCTP_STATE_MASK) == 0, |
8688 | 35.3k | ("sctp_set_state: Can't set substate (new_state = %x)", |
8689 | 35.3k | new_state)); |
8690 | 35.3k | stcb->asoc.state = (stcb->asoc.state & ~SCTP_STATE_MASK) | new_state; |
8691 | 35.3k | if ((new_state == SCTP_STATE_SHUTDOWN_RECEIVED) || |
8692 | 35.3k | (new_state == SCTP_STATE_SHUTDOWN_SENT) || |
8693 | 35.3k | (new_state == SCTP_STATE_SHUTDOWN_ACK_SENT)) { |
8694 | 131 | SCTP_CLEAR_SUBSTATE(stcb, SCTP_STATE_SHUTDOWN_PENDING); |
8695 | 131 | } |
8696 | | #if defined(KDTRACE_HOOKS) |
8697 | | if (((old_state & SCTP_STATE_MASK) != new_state) && |
8698 | | !(((old_state & SCTP_STATE_MASK) == SCTP_STATE_EMPTY) && |
8699 | | (new_state == SCTP_STATE_INUSE))) { |
8700 | | SCTP_PROBE6(state__change, NULL, stcb, NULL, stcb, NULL, old_state); |
8701 | | } |
8702 | | #endif |
8703 | 35.3k | } |
8704 | | |
8705 | | void |
8706 | | sctp_add_substate(struct sctp_tcb *stcb, int substate) |
8707 | 21.2k | { |
8708 | | #if defined(KDTRACE_HOOKS) |
8709 | | int old_state = stcb->asoc.state; |
8710 | | #endif |
8711 | | |
8712 | 21.2k | KASSERT((substate & SCTP_STATE_MASK) == 0, |
8713 | 21.2k | ("sctp_add_substate: Can't set state (substate = %x)", |
8714 | 21.2k | substate)); |
8715 | 21.2k | stcb->asoc.state |= substate; |
8716 | | #if defined(KDTRACE_HOOKS) |
8717 | | if (((substate & SCTP_STATE_ABOUT_TO_BE_FREED) && |
8718 | | ((old_state & SCTP_STATE_ABOUT_TO_BE_FREED) == 0)) || |
8719 | | ((substate & SCTP_STATE_SHUTDOWN_PENDING) && |
8720 | | ((old_state & SCTP_STATE_SHUTDOWN_PENDING) == 0))) { |
8721 | | SCTP_PROBE6(state__change, NULL, stcb, NULL, stcb, NULL, old_state); |
8722 | | } |
8723 | | #endif |
8724 | 21.2k | } |
8725 | | |