/src/openssl/crypto/bio/bio_meth.c
Line | Count | Source (jump to first uncovered line) |
1 | | /* |
2 | | * Copyright 2016-2024 The OpenSSL Project Authors. All Rights Reserved. |
3 | | * |
4 | | * Licensed under the Apache License 2.0 (the "License"). You may not use |
5 | | * this file except in compliance with the License. You can obtain a copy |
6 | | * in the file LICENSE in the source distribution or at |
7 | | * https://www.openssl.org/source/license.html |
8 | | */ |
9 | | |
10 | | #include "bio_local.h" |
11 | | #include "internal/thread_once.h" |
12 | | |
13 | | CRYPTO_REF_COUNT bio_type_count; |
14 | | static CRYPTO_ONCE bio_type_init = CRYPTO_ONCE_STATIC_INIT; |
15 | | |
16 | | DEFINE_RUN_ONCE_STATIC(do_bio_type_init) |
17 | 0 | { |
18 | 0 | return CRYPTO_NEW_REF(&bio_type_count, BIO_TYPE_START); |
19 | 0 | } |
20 | | |
21 | | int BIO_get_new_index(void) |
22 | 0 | { |
23 | 0 | int newval; |
24 | |
|
25 | 0 | if (!RUN_ONCE(&bio_type_init, do_bio_type_init)) { |
26 | | /* Perhaps the error should be raised in do_bio_type_init()? */ |
27 | 0 | ERR_raise(ERR_LIB_BIO, ERR_R_CRYPTO_LIB); |
28 | 0 | return -1; |
29 | 0 | } |
30 | 0 | if (!CRYPTO_UP_REF(&bio_type_count, &newval)) |
31 | 0 | return -1; |
32 | 0 | if (newval > BIO_TYPE_MASK) |
33 | 0 | return -1; |
34 | 0 | return newval; |
35 | 0 | } |
36 | | |
37 | | BIO_METHOD *BIO_meth_new(int type, const char *name) |
38 | 2 | { |
39 | 2 | BIO_METHOD *biom = OPENSSL_zalloc(sizeof(BIO_METHOD)); |
40 | | |
41 | 2 | if (biom == NULL |
42 | 2 | || (biom->name = OPENSSL_strdup(name)) == NULL) { |
43 | 0 | OPENSSL_free(biom); |
44 | 0 | return NULL; |
45 | 0 | } |
46 | 2 | biom->type = type; |
47 | 2 | return biom; |
48 | 2 | } |
49 | | |
50 | | void BIO_meth_free(BIO_METHOD *biom) |
51 | 2 | { |
52 | 2 | if (biom != NULL) { |
53 | 2 | OPENSSL_free(biom->name); |
54 | 2 | OPENSSL_free(biom); |
55 | 2 | } |
56 | 2 | } |
57 | | |
58 | | int (*BIO_meth_get_write(const BIO_METHOD *biom)) (BIO *, const char *, int) |
59 | 0 | { |
60 | 0 | return biom->bwrite_old; |
61 | 0 | } |
62 | | |
63 | | int (*BIO_meth_get_write_ex(const BIO_METHOD *biom)) (BIO *, const char *, size_t, |
64 | | size_t *) |
65 | 0 | { |
66 | 0 | return biom->bwrite; |
67 | 0 | } |
68 | | |
69 | | /* Conversion for old style bwrite to new style */ |
70 | | int bwrite_conv(BIO *bio, const char *data, size_t datal, size_t *written) |
71 | 0 | { |
72 | 0 | int ret; |
73 | |
|
74 | 0 | if (datal > INT_MAX) |
75 | 0 | datal = INT_MAX; |
76 | |
|
77 | 0 | ret = bio->method->bwrite_old(bio, data, (int)datal); |
78 | |
|
79 | 0 | if (ret <= 0) { |
80 | 0 | *written = 0; |
81 | 0 | return ret; |
82 | 0 | } |
83 | | |
84 | 0 | *written = (size_t)ret; |
85 | |
|
86 | 0 | return 1; |
87 | 0 | } |
88 | | |
89 | | int BIO_meth_set_write(BIO_METHOD *biom, |
90 | | int (*bwrite) (BIO *, const char *, int)) |
91 | 0 | { |
92 | 0 | biom->bwrite_old = bwrite; |
93 | 0 | biom->bwrite = bwrite_conv; |
94 | 0 | return 1; |
95 | 0 | } |
96 | | |
97 | | int BIO_meth_set_write_ex(BIO_METHOD *biom, |
98 | | int (*bwrite) (BIO *, const char *, size_t, size_t *)) |
99 | 2 | { |
100 | 2 | biom->bwrite_old = NULL; |
101 | 2 | biom->bwrite = bwrite; |
102 | 2 | return 1; |
103 | 2 | } |
104 | | |
105 | | int (*BIO_meth_get_read(const BIO_METHOD *biom)) (BIO *, char *, int) |
106 | 0 | { |
107 | 0 | return biom->bread_old; |
108 | 0 | } |
109 | | |
110 | | int (*BIO_meth_get_read_ex(const BIO_METHOD *biom)) (BIO *, char *, size_t, size_t *) |
111 | 0 | { |
112 | 0 | return biom->bread; |
113 | 0 | } |
114 | | |
115 | | /* Conversion for old style bread to new style */ |
116 | | int bread_conv(BIO *bio, char *data, size_t datal, size_t *readbytes) |
117 | 15 | { |
118 | 15 | int ret; |
119 | | |
120 | 15 | if (datal > INT_MAX) |
121 | 0 | datal = INT_MAX; |
122 | | |
123 | 15 | ret = bio->method->bread_old(bio, data, (int)datal); |
124 | | |
125 | 15 | if (ret <= 0) { |
126 | 6 | *readbytes = 0; |
127 | 6 | return ret; |
128 | 6 | } |
129 | | |
130 | 9 | *readbytes = (size_t)ret; |
131 | | |
132 | 9 | return 1; |
133 | 15 | } |
134 | | |
135 | | int BIO_meth_set_read(BIO_METHOD *biom, |
136 | | int (*bread) (BIO *, char *, int)) |
137 | 0 | { |
138 | 0 | biom->bread_old = bread; |
139 | 0 | biom->bread = bread_conv; |
140 | 0 | return 1; |
141 | 0 | } |
142 | | |
143 | | int BIO_meth_set_read_ex(BIO_METHOD *biom, |
144 | | int (*bread) (BIO *, char *, size_t, size_t *)) |
145 | 2 | { |
146 | 2 | biom->bread_old = NULL; |
147 | 2 | biom->bread = bread; |
148 | 2 | return 1; |
149 | 2 | } |
150 | | |
151 | | int (*BIO_meth_get_puts(const BIO_METHOD *biom)) (BIO *, const char *) |
152 | 0 | { |
153 | 0 | return biom->bputs; |
154 | 0 | } |
155 | | |
156 | | int BIO_meth_set_puts(BIO_METHOD *biom, |
157 | | int (*bputs) (BIO *, const char *)) |
158 | 2 | { |
159 | 2 | biom->bputs = bputs; |
160 | 2 | return 1; |
161 | 2 | } |
162 | | |
163 | | int (*BIO_meth_get_gets(const BIO_METHOD *biom)) (BIO *, char *, int) |
164 | 0 | { |
165 | 0 | return biom->bgets; |
166 | 0 | } |
167 | | |
168 | | int BIO_meth_set_gets(BIO_METHOD *biom, |
169 | | int (*bgets) (BIO *, char *, int)) |
170 | 2 | { |
171 | 2 | biom->bgets = bgets; |
172 | 2 | return 1; |
173 | 2 | } |
174 | | |
175 | | long (*BIO_meth_get_ctrl(const BIO_METHOD *biom)) (BIO *, int, long, void *) |
176 | 0 | { |
177 | 0 | return biom->ctrl; |
178 | 0 | } |
179 | | |
180 | | int BIO_meth_set_ctrl(BIO_METHOD *biom, |
181 | | long (*ctrl) (BIO *, int, long, void *)) |
182 | 2 | { |
183 | 2 | biom->ctrl = ctrl; |
184 | 2 | return 1; |
185 | 2 | } |
186 | | |
187 | | int (*BIO_meth_get_create(const BIO_METHOD *biom)) (BIO *) |
188 | 0 | { |
189 | 0 | return biom->create; |
190 | 0 | } |
191 | | |
192 | | int BIO_meth_set_create(BIO_METHOD *biom, int (*create) (BIO *)) |
193 | 2 | { |
194 | 2 | biom->create = create; |
195 | 2 | return 1; |
196 | 2 | } |
197 | | |
198 | | int (*BIO_meth_get_destroy(const BIO_METHOD *biom)) (BIO *) |
199 | 0 | { |
200 | 0 | return biom->destroy; |
201 | 0 | } |
202 | | |
203 | | int BIO_meth_set_destroy(BIO_METHOD *biom, int (*destroy) (BIO *)) |
204 | 2 | { |
205 | 2 | biom->destroy = destroy; |
206 | 2 | return 1; |
207 | 2 | } |
208 | | |
209 | | long (*BIO_meth_get_callback_ctrl(const BIO_METHOD *biom)) (BIO *, int, BIO_info_cb *) |
210 | 0 | { |
211 | 0 | return biom->callback_ctrl; |
212 | 0 | } |
213 | | |
214 | | int BIO_meth_set_callback_ctrl(BIO_METHOD *biom, |
215 | | long (*callback_ctrl) (BIO *, int, |
216 | | BIO_info_cb *)) |
217 | 0 | { |
218 | 0 | biom->callback_ctrl = callback_ctrl; |
219 | 0 | return 1; |
220 | 0 | } |
221 | | |
222 | | int BIO_meth_set_sendmmsg(BIO_METHOD *biom, |
223 | | int (*bsendmmsg) (BIO *, BIO_MSG *, size_t, size_t, uint64_t, size_t *)) |
224 | 0 | { |
225 | 0 | biom->bsendmmsg = bsendmmsg; |
226 | 0 | return 1; |
227 | 0 | } |
228 | | |
229 | 0 | int (*BIO_meth_get_sendmmsg(const BIO_METHOD *biom))(BIO *, BIO_MSG *, size_t, size_t, uint64_t, size_t *) { |
230 | 0 | return biom->bsendmmsg; |
231 | 0 | } |
232 | | |
233 | | int BIO_meth_set_recvmmsg(BIO_METHOD *biom, |
234 | | int (*brecvmmsg) (BIO *, BIO_MSG *, size_t, size_t, uint64_t, size_t *)) |
235 | 0 | { |
236 | 0 | biom->brecvmmsg = brecvmmsg; |
237 | 0 | return 1; |
238 | 0 | } |
239 | | |
240 | 0 | int (*BIO_meth_get_recvmmsg(const BIO_METHOD *biom))(BIO *, BIO_MSG *, size_t, size_t, uint64_t, size_t *) { |
241 | 0 | return biom->brecvmmsg; |
242 | 0 | } |