Line data Source code
1 : #include "../tiles.h"
2 :
3 : #include "generated/fd_shred_tile_seccomp.h"
4 : #include "../../util/pod/fd_pod_format.h"
5 : #include "fd_shredder.h"
6 : #include "fd_shred_batch.h"
7 : #include "fd_shred_dest.h"
8 : #include "fd_fec_resolver.h"
9 : #include "fd_stake_ci.h"
10 : #include "fd_rnonce_ss.h"
11 : #include "../store/fd_store.h"
12 : #include "../keyguard/fd_keyload.h"
13 : #include "../keyguard/fd_keyguard.h"
14 : #include "../keyguard/fd_keyswitch.h"
15 : #include "../fd_disco.h"
16 : #include "../net/fd_net_tile.h"
17 : #include "../../flamenco/leaders/fd_leaders.h"
18 : #include "../../util/net/fd_net_headers.h"
19 : #include "../../flamenco/gossip/fd_gossip_message.h"
20 : #include "../../flamenco/types/fd_types.h"
21 : #include "../../flamenco/runtime/sysvar/fd_sysvar_epoch_schedule.h"
22 : #include "../../discof/tower/fd_tower_slot_rooted.h"
23 :
24 : /* The shred tile handles shreds from two data sources: shreds generated
25 : from microblocks from the leader pipeline, and shreds retransmitted
26 : from the network.
27 :
28 : They have rather different semantics, but at the end of the day, they
29 : both result in a bunch of shreds and FEC sets that need to be sent to
30 : the blockstore and on the network, which is why one tile handles
31 : both.
32 :
33 : We segment the memory for the two types of shreds into two halves of
34 : a dcache because they follow somewhat different flow control
35 : patterns. For flow control, the normal guarantee we want to provide
36 : is that the dcache entry is not overwritten unless the mcache entry
37 : has also been overwritten. The normal way to do this when using both
38 : cyclically and with a 1-to-1 mapping is to make the dcache at least
39 : `burst` entries bigger than the mcache.
40 :
41 : In this tile, we use one output mcache (of depth d) with one output
42 : dcache (which is logically partitioned into two) for the two sources
43 : of data. The worst case for flow control is when we're only sending
44 : with one of the dcache partitions at a time though, so we can
45 : consider them separately.
46 :
47 : Leader pipeline: Every entry triggers s FEC sets to be created, where
48 : s is in [0, FD_SHRED_BATCH_FEC_SETS_MAX]. Each FEC set corresponds
49 : to 1 dcache entry and 1 mcache entry. This means we can have d FEC
50 : sets exposed while producing FD_SHRED_BATCH_FEC_SETS_MAX more FEC
51 : sets, so the leader pipeline section of the dcache needs at least
52 : d+FD_SHRED_BATCH_FEC_SETS_MAX entries.
53 :
54 : From the network: The FEC resolver doesn't use a cyclic order, but it
55 : does promise that once it returns an FEC set, it will return at least
56 : complete_depth FEC sets before returning it again. This means we
57 : want at most complete_depth-1 FEC sets exposed, so
58 : complete_depth=d+1 FEC sets. The FEC resolver has the
59 : ability to keep individual shreds for partial_depth calls, but
60 : because in this version of the shred tile, we send each shred to all
61 : its destinations as soon as we get it, we don't need that
62 : functionality, so we set partial_depth=1.
63 :
64 : Adding these up and plugging in the current value of
65 : BATCH_FEC_SETS_MAX, we get 2*d+6+fec_resolver_depth FEC sets. The
66 : topology code doesn't allow specifying mcache depth and dcache depth
67 : independently. That means we have to lie about the MTU and burst.
68 : We say the MTU is double what it actually is, and then the burst is
69 : 4+fec_resolver_depth/2. That means we get
70 : 2*d+2*(4+fec_resolver_depth/2) >= 2*d+6+fec_resolver_depth FEC sets.
71 :
72 : A note on parallelization. From the network, shreds are distributed
73 : to tiles based on a validator-specific seeded hash of (slot, FEC set
74 : index) so all the shreds for a given FEC set (and any equivocating
75 : FEC set) are processed by the same tile. From the leader pipeline,
76 : the original implementation used to parallelize by batch of
77 : microblocks (so within a block, batches were distributed to different
78 : tiles). To support chained merkle shreds, the current implementation
79 : processes all the batches on tile 0 -- this should be a temporary
80 : state while Solana moves to a newer shred format that support better
81 : parallelization. */
82 :
83 : #define FD_SHRED_TILE_SCRATCH_ALIGN 128UL
84 :
85 0 : #define IN_KIND_CONTACT ( 0UL)
86 0 : #define IN_KIND_EPOCH ( 1UL) /* Firedancer */
87 0 : #define IN_KIND_STAKE ( 2UL) /* Frankendancer */
88 0 : #define IN_KIND_POH ( 3UL)
89 0 : #define IN_KIND_NET ( 4UL)
90 0 : #define IN_KIND_SIGN ( 5UL)
91 : #define IN_KIND_REPAIR ( 6UL)
92 0 : #define IN_KIND_IPECHO ( 7UL)
93 0 : #define IN_KIND_GOSSIP ( 8UL)
94 0 : #define IN_KIND_ROOTED ( 9UL)
95 0 : #define IN_KIND_ROOTEDH (10UL)
96 :
97 0 : #define NET_OUT_IDX 1
98 0 : #define SIGN_OUT_IDX 2
99 :
100 : FD_STATIC_ASSERT( sizeof(fd_entry_batch_meta_t)==56UL, poh_shred_mtu );
101 : FD_STATIC_ASSERT( sizeof(fd_fec_set_t)==FD_SHRED_STORE_MTU, shred_store_mtu );
102 :
103 0 : #define FD_SHRED_ADD_SHRED_EXTRA_RETVAL_CNT 2
104 :
105 : /* Number of entries in the block_ids table. Each entry is 32 byte.
106 : This table is used to keep track of block ids that we create
107 : when we're leader, so that we can access them whenever we need
108 : a *parent* block id for a new block. Larger table allows to
109 : retrieve older parent block ids. Currently it's set for worst
110 : case parent offset of USHORT_MAX (max allowed in a shred),
111 : making the total table 2MiB.
112 : See also comment on chained_merkle_root. */
113 0 : #define BLOCK_IDS_TABLE_CNT USHORT_MAX
114 :
115 : /* See note on parallelization above. Currently we process all batches in tile 0. */
116 : #if 1
117 : #define SHOULD_PROCESS_THESE_SHREDS ( ctx->round_robin_id==0 )
118 : #else
119 : #define SHOULD_PROCESS_THESE_SHREDS ( ctx->batch_cnt%ctx->round_robin_cnt==ctx->round_robin_id )
120 : #endif
121 :
122 : /* The behavior of the shred tile is slightly different for
123 : Frankendancer vs Firedancer. For example, Frankendancer produces
124 : chained merkle shreds, while Firedancer doesn't yet. We can check
125 : at runtime the difference by inspecting the topology. The simplest
126 : way is to test if ctx->store is initialized.
127 :
128 : FIXME don't assume only frank vs. fire */
129 : #define IS_FIREDANCER ( ctx->store!=NULL )
130 :
131 : typedef union {
132 : struct {
133 : fd_wksp_t * mem;
134 : ulong chunk0;
135 : ulong wmark;
136 : };
137 : fd_net_rx_bounds_t net_rx;
138 : } fd_shred_in_ctx_t;
139 :
140 : typedef struct {
141 : fd_shredder_t * shredder;
142 : fd_fec_resolver_t * resolver;
143 : fd_pubkey_t identity_key[1]; /* Just the public key */
144 :
145 : ulong round_robin_id;
146 : ulong round_robin_cnt;
147 : /* Number of batches shredded from PoH during the current slot.
148 : This should be the same for all the shred tiles. */
149 : ulong batch_cnt;
150 : /* Slot of the most recent microblock we've seen from PoH,
151 : or 0 if we haven't seen one yet */
152 : ulong slot;
153 :
154 : fd_rnonce_ss_t repair_nonce_ss[1];
155 :
156 : fd_keyswitch_t * keyswitch;
157 : fd_keyguard_client_t keyguard_client[1];
158 :
159 : fd_fec_set_t * fec_sets;
160 :
161 : fd_stake_ci_t * stake_ci;
162 : /* These are used in between during_frag and after_frag */
163 : fd_shred_dest_weighted_t * new_dest_ptr;
164 : ulong new_dest_cnt;
165 : ulong shredded_txn_cnt;
166 : ulong new_root;
167 :
168 : ulong poh_in_expect_seq;
169 :
170 : ushort net_id;
171 :
172 : int skip_frag;
173 :
174 : ulong adtl_dests_leader_cnt;
175 : fd_shred_dest_weighted_t adtl_dests_leader [ FD_TOPO_ADTL_DESTS_MAX ];
176 : ulong adtl_dests_retransmit_cnt;
177 : fd_shred_dest_weighted_t adtl_dests_retransmit[ FD_TOPO_ADTL_DESTS_MAX ];
178 :
179 : fd_ip4_udp_hdrs_t data_shred_net_hdr [1];
180 : fd_ip4_udp_hdrs_t parity_shred_net_hdr[1];
181 :
182 : ulong shredder_fec_set_idx; /* In [0, shredder_max_fec_set_idx) */
183 : ulong shredder_max_fec_set_idx; /* exclusive */
184 :
185 : uchar shredder_merkle_root[32];
186 :
187 : ulong send_fec_set_idx[ FD_SHRED_BATCH_FEC_SETS_MAX ];
188 : ulong send_fec_set_cnt;
189 : ulong tsorig; /* timestamp of the last packet in compressed form */
190 :
191 : /* Includes Ethernet, IP, UDP headers */
192 : ulong shred_buffer_sz;
193 : uchar shred_buffer[ FD_NET_MTU ];
194 :
195 : /* resolver_seed gets generated in privileged_init but used in
196 : unprivileged_init, so we store it here in between. */
197 : ulong resolver_seed;
198 :
199 : fd_shred_in_ctx_t in[ 32 ];
200 : int in_kind[ 32 ];
201 :
202 : fd_wksp_t * net_out_mem;
203 : ulong net_out_chunk0;
204 : ulong net_out_wmark;
205 : ulong net_out_chunk;
206 :
207 : ulong store_out_idx;
208 : fd_wksp_t * store_out_mem;
209 : ulong store_out_chunk0;
210 : ulong store_out_wmark;
211 : ulong store_out_chunk;
212 :
213 : /* This is the output link for shreds that is currently consumed by
214 : the repair and replay tile. */
215 : ulong shred_out_idx;
216 : fd_wksp_t * shred_out_mem;
217 : ulong shred_out_chunk0;
218 : ulong shred_out_wmark;
219 : ulong shred_out_chunk;
220 :
221 : fd_store_t * store;
222 :
223 : fd_gossip_update_message_t gossip_upd_buf[1];
224 :
225 : struct {
226 : fd_histf_t contact_info_cnt[ 1 ];
227 : fd_histf_t batch_sz[ 1 ];
228 : fd_histf_t batch_microblock_cnt[ 1 ];
229 : fd_histf_t shredding_timing[ 1 ];
230 : fd_histf_t add_shred_timing[ 1 ];
231 : ulong shred_processing_result[ FD_FEC_RESOLVER_ADD_SHRED_RETVAL_CNT+FD_SHRED_ADD_SHRED_EXTRA_RETVAL_CNT ];
232 : ulong invalid_block_id_cnt;
233 : ulong shred_rejected_unchained_cnt;
234 : ulong repair_rcv_cnt;
235 : ulong repair_rcv_bytes;
236 : ulong turbine_rcv_cnt;
237 : ulong turbine_rcv_bytes;
238 : ulong bad_nonce;
239 : } metrics[ 1 ];
240 :
241 : struct {
242 : ulong txn_cnt;
243 : ulong pos; /* in payload, range [0, FD_SHRED_BATCH_RAW_BUF_SZ-8UL) */
244 : ulong slot; /* set to 0 when pos==0 */
245 : union {
246 : struct {
247 : ulong microblock_cnt;
248 : uchar payload[ FD_SHRED_BATCH_RAW_BUF_SZ - 8UL ];
249 : };
250 : uchar raw[ FD_SHRED_BATCH_RAW_BUF_SZ ];
251 : };
252 : } pending_batch;
253 :
254 : fd_epoch_schedule_t epoch_schedule[1];
255 : fd_shred_features_activation_t features_activation[1];
256 : /* too large to be left in the stack */
257 : fd_shred_dest_idx_t scratchpad_dests[ FD_SHRED_DEST_MAX_FANOUT*(FD_REEDSOL_DATA_SHREDS_MAX+FD_REEDSOL_PARITY_SHREDS_MAX) ];
258 :
259 : uchar * chained_merkle_root;
260 : fd_bmtree_node_t out_merkle_roots[ FD_SHRED_BATCH_FEC_SETS_MAX ];
261 : uchar block_ids[ BLOCK_IDS_TABLE_CNT ][ FD_SHRED_MERKLE_ROOT_SZ ];
262 : } fd_shred_ctx_t;
263 :
264 : /* shred features are generally considered active at the epoch *following*
265 : the epoch in which the feature gate is activated.
266 :
267 : As an optimization, when the activation slot is received, it is converted
268 : into the first slot of the subsequent epoch. This allows for a more
269 : efficient check (shred_slot >= feature_slot) and avoids the overhead of
270 : repeatedly converting slots into epochs for comparison.
271 :
272 : This function is only for Firedancer, while Frankendancer already receives
273 : the final activation slot from POH tile.
274 :
275 : In Agave, this is done with check_feature_activation():
276 : https://github.com/anza-xyz/agave/blob/v3.1.4/turbine/src/cluster_nodes.rs#L771
277 : https://github.com/anza-xyz/agave/blob/v3.1.4/core/src/shred_fetch_stage.rs#L456 */
278 : static inline ulong
279 0 : fd_shred_get_feature_activation_slot0( ulong feature_slot, fd_shred_ctx_t * ctx ) {
280 : /* if the feature does not have an activation slot yet, return ULONG_MAX */
281 0 : if( FD_UNLIKELY( feature_slot==ULONG_MAX ) ) {
282 0 : return ULONG_MAX;
283 0 : }
284 : /* if we don't have an epoch schedule yet, return ULONG_MAX */
285 0 : if( FD_UNLIKELY( ctx->epoch_schedule->slots_per_epoch==0 ) ) {
286 0 : return ULONG_MAX;
287 0 : }
288 : /* compute the activation epoch, add one, return the first slot. */
289 0 : ulong feature_epoch = 1 + fd_slot_to_epoch( ctx->epoch_schedule, feature_slot, NULL );
290 0 : return fd_epoch_slot0( ctx->epoch_schedule, feature_epoch );
291 0 : }
292 :
293 : FD_FN_CONST static inline ulong
294 0 : scratch_align( void ) {
295 0 : return 128UL;
296 0 : }
297 :
298 : FD_FN_PURE static inline ulong
299 0 : scratch_footprint( fd_topo_tile_t const * tile ) {
300 :
301 0 : ulong fec_resolver_footprint = fd_fec_resolver_footprint( tile->shred.fec_resolver_depth, 1UL, tile->shred.depth+1UL,
302 0 : 128UL * tile->shred.fec_resolver_depth );
303 0 : ulong l = FD_LAYOUT_INIT;
304 0 : l = FD_LAYOUT_APPEND( l, alignof(fd_shred_ctx_t), sizeof(fd_shred_ctx_t) );
305 0 : l = FD_LAYOUT_APPEND( l, fd_stake_ci_align(), fd_stake_ci_footprint() );
306 0 : l = FD_LAYOUT_APPEND( l, fd_fec_resolver_align(), fec_resolver_footprint );
307 0 : l = FD_LAYOUT_APPEND( l, fd_shredder_align(), fd_shredder_footprint() );
308 0 : return FD_LAYOUT_FINI( l, scratch_align() );
309 0 : }
310 :
311 : static inline void
312 0 : during_housekeeping( fd_shred_ctx_t * ctx ) {
313 0 : if( FD_UNLIKELY( fd_keyswitch_state_query( ctx->keyswitch )==FD_KEYSWITCH_STATE_SWITCH_PENDING ) ) {
314 0 : ulong seq_must_complete = ctx->keyswitch->param;
315 :
316 0 : if( FD_UNLIKELY( fd_seq_lt( ctx->poh_in_expect_seq, seq_must_complete ) ) ) {
317 : /* See fd_keyswitch.h, we need to flush any in-flight shreds from
318 : the leader pipeline before switching key. */
319 0 : FD_LOG_WARNING(( "Flushing in-flight unpublished shreds, must reach seq %lu, currently at %lu ...", seq_must_complete, ctx->poh_in_expect_seq ));
320 0 : return;
321 0 : }
322 :
323 0 : memcpy( ctx->identity_key->uc, ctx->keyswitch->bytes, 32UL );
324 0 : fd_stake_ci_set_identity( ctx->stake_ci, ctx->identity_key );
325 0 : fd_keyswitch_state( ctx->keyswitch, FD_KEYSWITCH_STATE_COMPLETED );
326 0 : }
327 0 : }
328 :
329 : static inline void
330 0 : metrics_write( fd_shred_ctx_t * ctx ) {
331 0 : FD_MHIST_COPY( SHRED, CLUSTER_CONTACT_INFO_CNT, ctx->metrics->contact_info_cnt );
332 0 : FD_MHIST_COPY( SHRED, BATCH_SZ, ctx->metrics->batch_sz );
333 0 : FD_MHIST_COPY( SHRED, BATCH_MICROBLOCK_CNT, ctx->metrics->batch_microblock_cnt );
334 0 : FD_MHIST_COPY( SHRED, SHREDDING_DURATION_SECONDS, ctx->metrics->shredding_timing );
335 0 : FD_MHIST_COPY( SHRED, ADD_SHRED_DURATION_SECONDS, ctx->metrics->add_shred_timing );
336 0 : FD_MCNT_SET ( SHRED, SHRED_REPAIR_RCV, ctx->metrics->repair_rcv_cnt );
337 0 : FD_MCNT_SET ( SHRED, SHRED_REPAIR_RCV_BYTES, ctx->metrics->repair_rcv_bytes );
338 0 : FD_MCNT_SET ( SHRED, SHRED_TURBINE_RCV, ctx->metrics->turbine_rcv_cnt );
339 0 : FD_MCNT_SET ( SHRED, SHRED_TURBINE_RCV_BYTES, ctx->metrics->turbine_rcv_bytes );
340 0 : FD_MCNT_SET ( SHRED, BAD_NONCE, ctx->metrics->bad_nonce );
341 :
342 0 : FD_MCNT_SET ( SHRED, INVALID_BLOCK_ID, ctx->metrics->invalid_block_id_cnt );
343 0 : FD_MCNT_SET ( SHRED, SHRED_REJECTED_UNCHAINED, ctx->metrics->shred_rejected_unchained_cnt );
344 :
345 0 : FD_MCNT_ENUM_COPY( SHRED, SHRED_PROCESSED, ctx->metrics->shred_processing_result );
346 0 : }
347 :
348 : static inline void
349 : handle_new_cluster_contact_info( fd_shred_ctx_t * ctx,
350 0 : uchar const * buf ) {
351 0 : ulong const * header = (ulong const *)fd_type_pun_const( buf );
352 :
353 0 : ulong dest_cnt = header[ 0 ];
354 0 : fd_histf_sample( ctx->metrics->contact_info_cnt, dest_cnt );
355 :
356 0 : if( dest_cnt >= MAX_SHRED_DESTS )
357 0 : FD_LOG_ERR(( "Cluster nodes had %lu destinations, which was more than the max of %lu", dest_cnt, MAX_SHRED_DESTS ));
358 :
359 0 : fd_shred_dest_wire_t const * in_dests = fd_type_pun_const( header+1UL );
360 0 : fd_shred_dest_weighted_t * dests = fd_stake_ci_dest_add_init( ctx->stake_ci );
361 :
362 0 : ctx->new_dest_ptr = dests;
363 0 : ctx->new_dest_cnt = dest_cnt;
364 :
365 0 : for( ulong i=0UL; i<dest_cnt; i++ ) {
366 0 : memcpy( dests[i].pubkey.uc, in_dests[i].pubkey, 32UL );
367 0 : dests[i].ip4 = in_dests[i].ip4_addr;
368 0 : dests[i].port = in_dests[i].udp_port;
369 0 : }
370 0 : }
371 :
372 : static inline void
373 0 : finalize_new_cluster_contact_info( fd_shred_ctx_t * ctx ) {
374 0 : fd_stake_ci_dest_add_fini( ctx->stake_ci, ctx->new_dest_cnt );
375 0 : }
376 :
377 : static inline int
378 : before_frag( fd_shred_ctx_t * ctx,
379 : ulong in_idx,
380 : ulong seq,
381 0 : ulong sig ) {
382 0 : if( FD_UNLIKELY( ctx->in_kind[ in_idx ]==IN_KIND_IPECHO ) ) {
383 0 : FD_TEST( sig!=0UL && sig<=USHORT_MAX );
384 0 : fd_shredder_set_shred_version ( ctx->shredder, (ushort)sig );
385 0 : fd_fec_resolver_set_shred_version( ctx->resolver, (ushort)sig );
386 0 : return 1;
387 0 : }
388 :
389 0 : if( FD_UNLIKELY( !ctx->shredder->shred_version ) ) return -1;
390 :
391 0 : if( FD_LIKELY( ctx->in_kind[ in_idx ]==IN_KIND_POH ) ) {
392 0 : ctx->poh_in_expect_seq = seq+1UL;
393 0 : return (int)(fd_disco_poh_sig_pkt_type( sig )!=POH_PKT_TYPE_MICROBLOCK) & (int)(fd_disco_poh_sig_pkt_type( sig )!=POH_PKT_TYPE_FEAT_ACT_SLOT);
394 0 : }
395 0 : if( FD_LIKELY( ctx->in_kind[ in_idx ]==IN_KIND_NET ) ) {
396 0 : return (int)(fd_disco_netmux_sig_proto( sig )!=DST_PROTO_SHRED) & (int)(fd_disco_netmux_sig_proto( sig )!=DST_PROTO_REPAIR);
397 0 : }
398 0 : if( FD_UNLIKELY( ctx->in_kind[ in_idx ]==IN_KIND_GOSSIP ) ){
399 0 : return sig!=FD_GOSSIP_UPDATE_TAG_CONTACT_INFO &&
400 0 : sig!=FD_GOSSIP_UPDATE_TAG_CONTACT_INFO_REMOVE;
401 0 : }
402 0 : if( FD_UNLIKELY( ctx->in_kind[ in_idx ]==IN_KIND_ROOTEDH ) ) {
403 0 : return sig!=0UL; /* only care about rooted banks, not completed blockhash */
404 0 : }
405 0 : if( FD_UNLIKELY( ctx->in_kind[ in_idx ]==IN_KIND_ROOTED ) ) {
406 0 : return sig!=FD_TOWER_SIG_SLOT_ROOTED; /* only care about slot_confirmed messages */
407 0 : }
408 0 : return 0;
409 0 : }
410 :
411 : static void
412 : during_frag( fd_shred_ctx_t * ctx,
413 : ulong in_idx,
414 : ulong seq FD_PARAM_UNUSED,
415 : ulong sig,
416 : ulong chunk,
417 : ulong sz,
418 0 : ulong ctl ) {
419 :
420 0 : ctx->skip_frag = 0;
421 :
422 0 : ctx->tsorig = fd_frag_meta_ts_comp( fd_tickcount() );
423 :
424 0 : if( FD_UNLIKELY( ctx->in_kind[ in_idx ]==IN_KIND_REPAIR ) ) {
425 0 : if( FD_UNLIKELY( chunk<ctx->in[ in_idx ].chunk0 || chunk>ctx->in[ in_idx ].wmark || sz>FD_NET_MTU ) )
426 0 : FD_LOG_ERR(( "chunk %lu %lu corrupt, not in range [%lu,%lu]", chunk, sz,
427 0 : ctx->in[ in_idx ].chunk0, ctx->in[ in_idx ].wmark ));
428 :
429 0 : uchar const * dcache_entry = fd_chunk_to_laddr_const( ctx->in[ in_idx ].mem, chunk );
430 0 : fd_memcpy( ctx->shred_buffer, dcache_entry, sz );
431 0 : return;
432 0 : }
433 :
434 0 : if( FD_UNLIKELY( ctx->in_kind[ in_idx ]==IN_KIND_CONTACT ) ) {
435 0 : if( FD_UNLIKELY( chunk<ctx->in[ in_idx ].chunk0 || chunk>ctx->in[ in_idx ].wmark ) )
436 0 : FD_LOG_ERR(( "chunk %lu %lu corrupt, not in range [%lu,%lu]", chunk, sz,
437 0 : ctx->in[ in_idx ].chunk0, ctx->in[ in_idx ].wmark ));
438 :
439 0 : uchar const * dcache_entry = fd_chunk_to_laddr_const( ctx->in[ in_idx ].mem, chunk );
440 0 : handle_new_cluster_contact_info( ctx, dcache_entry );
441 0 : return;
442 0 : }
443 :
444 0 : if( FD_UNLIKELY( ctx->in_kind[ in_idx ]==IN_KIND_GOSSIP ) ) {
445 0 : if( FD_UNLIKELY( chunk<ctx->in[ in_idx ].chunk0 || chunk>ctx->in[ in_idx ].wmark || sz>sizeof(fd_gossip_update_message_t) ) )
446 0 : FD_LOG_ERR(( "chunk %lu %lu corrupt, not in range [%lu,%lu]", chunk, sz,
447 0 : ctx->in[ in_idx ].chunk0, ctx->in[ in_idx ].wmark ));
448 0 : uchar const * gossip_upd_msg = fd_chunk_to_laddr_const( ctx->in[ in_idx ].mem, chunk );
449 0 : fd_memcpy( ctx->gossip_upd_buf, gossip_upd_msg, sz );
450 0 : return;
451 0 : }
452 :
453 : /* Firedancer only */
454 0 : if( FD_UNLIKELY( ctx->in_kind[ in_idx ]==IN_KIND_ROOTED ) ) {
455 0 : if( FD_UNLIKELY( chunk<ctx->in[ in_idx ].chunk0 || chunk>ctx->in[ in_idx ].wmark ) )
456 0 : FD_LOG_ERR(( "chunk %lu %lu corrupt, not in range [%lu,%lu]", chunk, sz,
457 0 : ctx->in[ in_idx ].chunk0, ctx->in[ in_idx ].wmark ));
458 0 : fd_tower_slot_rooted_t const * rooted_msg = fd_chunk_to_laddr_const( ctx->in[ in_idx ].mem, chunk );
459 0 : ctx->new_root = rooted_msg->slot;
460 0 : return;
461 0 : }
462 :
463 : /* Frankendancer only */
464 0 : if( FD_UNLIKELY( ctx->in_kind[ in_idx ]==IN_KIND_ROOTEDH ) ) {
465 0 : if( FD_UNLIKELY( chunk<ctx->in[ in_idx ].chunk0 || chunk>ctx->in[ in_idx ].wmark ) )
466 0 : FD_LOG_ERR(( "chunk %lu %lu corrupt, not in range [%lu,%lu]", chunk, sz,
467 0 : ctx->in[ in_idx ].chunk0, ctx->in[ in_idx ].wmark ));
468 : /* The message format is a pointer to the bank (which is in the
469 : agave address space, so we couldn't access it even if we wanted
470 : to) followed by the rooted slot. */
471 0 : ulong const * replay_msg = fd_chunk_to_laddr_const( ctx->in[ in_idx ].mem, chunk );
472 0 : ctx->new_root = replay_msg[ 1 ];
473 0 : return;
474 0 : }
475 :
476 : /* Firedancer only */
477 0 : if( FD_UNLIKELY( ctx->in_kind[ in_idx ]==IN_KIND_EPOCH ) ) {
478 0 : if( FD_UNLIKELY( chunk<ctx->in[ in_idx ].chunk0 || chunk>ctx->in[ in_idx ].wmark ) )
479 0 : FD_LOG_ERR(( "chunk %lu %lu corrupt, not in range [%lu,%lu]", chunk, sz,
480 0 : ctx->in[ in_idx ].chunk0, ctx->in[ in_idx ].wmark ));
481 :
482 0 : uchar const * dcache_entry = fd_chunk_to_laddr_const( ctx->in[ in_idx ].mem, chunk );
483 0 : fd_epoch_info_msg_t const * epoch_msg = fd_type_pun_const( dcache_entry );
484 :
485 0 : fd_stake_ci_epoch_msg_init( ctx->stake_ci, epoch_msg );
486 :
487 0 : *ctx->epoch_schedule = epoch_msg->epoch_schedule;
488 0 : ctx->features_activation->enforce_fixed_fec_set = fd_shred_get_feature_activation_slot0(
489 0 : epoch_msg->features.enforce_fixed_fec_set, ctx );
490 0 : ctx->features_activation->switch_to_chacha8_turbine = fd_shred_get_feature_activation_slot0(
491 0 : epoch_msg->features.switch_to_chacha8_turbine, ctx );
492 0 : ctx->features_activation->discard_unexpected_data_complete_shreds = fd_shred_get_feature_activation_slot0(
493 0 : epoch_msg->features.discard_unexpected_data_complete_shreds, ctx );
494 :
495 0 : fd_fec_resolver_set_discard_unexpected_data_complete_shreds( ctx->resolver,
496 0 : ctx->features_activation->discard_unexpected_data_complete_shreds );
497 :
498 0 : return;
499 0 : }
500 :
501 0 : if( FD_UNLIKELY( ctx->in_kind[ in_idx ]==IN_KIND_STAKE ) ) {
502 0 : if( FD_UNLIKELY( chunk<ctx->in[ in_idx ].chunk0 || chunk>ctx->in[ in_idx ].wmark ) )
503 0 : FD_LOG_ERR(( "chunk %lu %lu corrupt, not in range [%lu,%lu]", chunk, sz,
504 0 : ctx->in[ in_idx ].chunk0, ctx->in[ in_idx ].wmark ));
505 :
506 0 : uchar const * dcache_entry = fd_chunk_to_laddr_const( ctx->in[ in_idx ].mem, chunk );
507 0 : fd_stake_ci_stake_msg_init( ctx->stake_ci, fd_type_pun_const( dcache_entry ) );
508 0 : return;
509 0 : }
510 :
511 0 : if( FD_UNLIKELY( ctx->in_kind[ in_idx ]==IN_KIND_POH ) ) {
512 0 : ctx->send_fec_set_cnt = 0UL;
513 :
514 0 : if( FD_UNLIKELY( (fd_disco_poh_sig_pkt_type( sig )==POH_PKT_TYPE_FEAT_ACT_SLOT) ) ) {
515 : /* There is a subset of FD_SHRED_FEATURES_ACTIVATION_... slots that
516 : the shred tile needs to be aware of. Since this requires the
517 : bank, we are forced (so far) to receive them from the poh tile
518 : (as a POH_PKT_TYPE_FEAT_ACT_SLOT). */
519 0 : uchar const * dcache_entry = fd_chunk_to_laddr_const( ctx->in[ in_idx ].mem, chunk );
520 0 : if( FD_UNLIKELY( chunk<ctx->in[ in_idx ].chunk0 || chunk>ctx->in[ in_idx ].wmark || sz!=(sizeof(fd_shred_features_activation_t)) ) )
521 0 : FD_LOG_ERR(( "chunk %lu %lu corrupt, not in range [%lu,%lu]", chunk, sz,
522 0 : ctx->in[ in_idx ].chunk0, ctx->in[ in_idx ].wmark ));
523 :
524 0 : fd_shred_features_activation_t const * act_data = (fd_shred_features_activation_t const *)dcache_entry;
525 0 : memcpy( ctx->features_activation, act_data, sizeof(fd_shred_features_activation_t) );
526 :
527 0 : fd_fec_resolver_set_discard_unexpected_data_complete_shreds( ctx->resolver,
528 0 : ctx->features_activation->discard_unexpected_data_complete_shreds );
529 0 : }
530 0 : else { /* (fd_disco_poh_sig_pkt_type( sig )==POH_PKT_TYPE_MICROBLOCK) */
531 : /* This is a frag from the PoH tile. We'll copy it to our pending
532 : microblock batch and shred it if necessary (last in block or
533 : above watermark). We just go ahead and shred it here, even
534 : though we may get overrun. If we do end up getting overrun, we
535 : just won't send these shreds out and we'll reuse the FEC set for
536 : the next one. From a higher level though, if we do get overrun,
537 : a bunch of shreds will never be transmitted, and we'll end up
538 : producing a block that never lands on chain. */
539 :
540 0 : uchar const * dcache_entry = fd_chunk_to_laddr_const( ctx->in[ in_idx ].mem, chunk );
541 0 : if( FD_UNLIKELY( chunk<ctx->in[ in_idx ].chunk0 || chunk>ctx->in[ in_idx ].wmark || sz>FD_POH_SHRED_MTU ||
542 0 : sz<(sizeof(fd_entry_batch_meta_t)+sizeof(fd_entry_batch_header_t)) ) )
543 0 : FD_LOG_ERR(( "chunk %lu %lu corrupt, not in range [%lu,%lu]", chunk, sz,
544 0 : ctx->in[ in_idx ].chunk0, ctx->in[ in_idx ].wmark ));
545 :
546 0 : fd_entry_batch_meta_t const * entry_meta = (fd_entry_batch_meta_t const *)dcache_entry;
547 0 : uchar const * entry = dcache_entry + sizeof(fd_entry_batch_meta_t);
548 0 : ulong entry_sz = sz - sizeof(fd_entry_batch_meta_t);
549 :
550 0 : fd_entry_batch_header_t const * microblock = (fd_entry_batch_header_t const *)entry;
551 :
552 : /* It should never be possible for this to fail, but we check it
553 : anyway. */
554 0 : FD_TEST( entry_sz + ctx->pending_batch.pos <= sizeof(ctx->pending_batch.payload) );
555 :
556 0 : ulong target_slot = fd_disco_poh_sig_slot( sig );
557 0 : if( FD_UNLIKELY( (ctx->pending_batch.microblock_cnt>0) & (ctx->pending_batch.slot!=target_slot) ) ) {
558 : /* TODO: The Agave client sends a dummy entry batch with only 1
559 : byte and the block-complete bit set. This helps other
560 : validators know that the block is dead and they should not try
561 : to continue building a fork on it. We probably want a similar
562 : approach eventually. */
563 0 : FD_LOG_WARNING(( "Abandoning %lu microblocks for slot %lu and switching to slot %lu",
564 0 : ctx->pending_batch.microblock_cnt, ctx->pending_batch.slot, target_slot ));
565 0 : ctx->pending_batch.slot = 0UL;
566 0 : ctx->pending_batch.pos = 0UL;
567 0 : ctx->pending_batch.microblock_cnt = 0UL;
568 0 : ctx->pending_batch.txn_cnt = 0UL;
569 0 : ctx->batch_cnt = 0UL;
570 :
571 0 : FD_MCNT_INC( SHRED, MICROBLOCKS_ABANDONED, 1UL );
572 0 : }
573 :
574 0 : ctx->pending_batch.slot = target_slot;
575 0 : if( FD_UNLIKELY( target_slot!=ctx->slot )) {
576 : /* Reset batch count if we are in a new slot */
577 0 : ctx->batch_cnt = 0UL;
578 0 : ctx->slot = target_slot;
579 :
580 : /* At the beginning of a new slot, prepare chained_merkle_root.
581 : chained_merkle_root is initialized at the block_id of the parent
582 : block, there's two cases:
583 :
584 : 1. block_id is passed in by the poh tile:
585 : - it's always passed when parent block had a different leader
586 : - it may be passed when we were leader for parent block (there
587 : are race conditions when it's not passed)
588 :
589 : 2. block_id is taken from block_ids table if we were the leader
590 : for the parent block (when we were NOT the leader, because of
591 : equivocation, we can't store block_id in the table)
592 :
593 : chained_merkle_root is stored in block_ids table at target_slot
594 : and it's progressively updated as more microblocks are received.
595 : As a result, when we move to a new slot, the block_ids table at
596 : the old slot will contain the block_id.
597 :
598 : The block_ids table is designed to protect against the race condition
599 : case in 1., therefore the table may not be set in some cases, e.g. if
600 : a validator (re)starts, but in those cases we don't expect the race
601 : condition to apply. */
602 0 : ctx->chained_merkle_root = ctx->block_ids[ target_slot % BLOCK_IDS_TABLE_CNT ];
603 0 : if( FD_UNLIKELY( SHOULD_PROCESS_THESE_SHREDS ) ) {
604 0 : if( FD_LIKELY( entry_meta->parent_block_id_valid ) ) {
605 : /* 1. Initialize chained_merkle_root sent from poh tile */
606 0 : memcpy( ctx->chained_merkle_root, entry_meta->parent_block_id, FD_SHRED_MERKLE_ROOT_SZ );
607 0 : } else {
608 0 : ulong parent_slot = target_slot - entry_meta->parent_offset;
609 0 : fd_epoch_leaders_t const * lsched = fd_stake_ci_get_lsched_for_slot( ctx->stake_ci, parent_slot );
610 0 : fd_pubkey_t const * slot_leader = fd_epoch_leaders_get( lsched, parent_slot );
611 :
612 0 : if( lsched && slot_leader && fd_memeq( slot_leader, ctx->identity_key, sizeof(fd_pubkey_t) ) ) {
613 : /* 2. Initialize chained_merkle_root from block_ids table, if we were the leader */
614 0 : memcpy( ctx->chained_merkle_root, ctx->block_ids[ parent_slot % BLOCK_IDS_TABLE_CNT ], FD_SHRED_MERKLE_ROOT_SZ );
615 0 : } else {
616 : /* This should never happen, log a metric and set chained_merkle_root to 0 */
617 0 : ctx->metrics->invalid_block_id_cnt++;
618 0 : memset( ctx->chained_merkle_root, 0, FD_SHRED_MERKLE_ROOT_SZ );
619 0 : }
620 0 : }
621 0 : }
622 0 : }
623 :
624 0 : if( FD_LIKELY( !SHOULD_PROCESS_THESE_SHREDS ) ) {
625 : /* If we are not processing this batch, filter in after_frag. */
626 0 : ctx->skip_frag = 1;
627 0 : }
628 :
629 0 : ulong pending_batch_wmark = FD_SHRED_BATCH_WMARK_CHAINED;
630 0 : uchar * chained_merkle_root = ctx->chained_merkle_root;
631 0 : ulong load_for_32_shreds = FD_SHREDDER_CHAINED_FEC_SET_PAYLOAD_SZ;
632 : /* All fec sets in the last batch of a block need to be resigned.
633 : This needs to match Agave's behavior - as a reference, see:
634 : https://github.com/anza-xyz/agave/blob/v2.3/ledger/src/shred/merkle.rs#L1040 */
635 0 : if( FD_UNLIKELY( entry_meta->block_complete ) ) {
636 0 : pending_batch_wmark = FD_SHRED_BATCH_WMARK_RESIGNED;
637 : /* chained_merkle_root also applies to resigned FEC sets. */
638 0 : load_for_32_shreds = FD_SHREDDER_RESIGNED_FEC_SET_PAYLOAD_SZ;
639 0 : }
640 :
641 : /* If this microblock completes the block, the batch is then
642 : finalized here. Otherwise, we check whether the new entry
643 : would exceed the pending_batch_wmark. If true, then the
644 : batch is closed now, shredded, and a new batch is started
645 : with the incoming microblock. If false, no shredding takes
646 : place, and the microblock is added to the current batch. */
647 0 : int batch_would_exceed_wmark = ( ctx->pending_batch.pos + entry_sz ) > pending_batch_wmark;
648 0 : int include_in_current_batch = entry_meta->block_complete | ( !batch_would_exceed_wmark );
649 0 : int process_current_batch = entry_meta->block_complete | batch_would_exceed_wmark;
650 0 : int init_new_batch = !include_in_current_batch;
651 :
652 0 : if( FD_LIKELY( include_in_current_batch ) ) {
653 0 : if( FD_UNLIKELY( SHOULD_PROCESS_THESE_SHREDS ) ) {
654 : /* Ugh, yet another memcpy */
655 0 : fd_memcpy( ctx->pending_batch.payload + ctx->pending_batch.pos, entry, entry_sz );
656 0 : }
657 0 : ctx->pending_batch.pos += entry_sz;
658 0 : ctx->pending_batch.microblock_cnt += 1UL;
659 0 : ctx->pending_batch.txn_cnt += microblock->txn_cnt;
660 0 : }
661 :
662 0 : if( FD_LIKELY( process_current_batch )) {
663 : /* Batch and padding size calculation. */
664 0 : ulong batch_sz = sizeof(ulong) + ctx->pending_batch.pos; /* without padding */
665 0 : ulong batch_sz_padded = load_for_32_shreds * ( ( batch_sz + load_for_32_shreds - 1UL ) / load_for_32_shreds );
666 0 : ulong padding_sz = batch_sz_padded - batch_sz;
667 :
668 0 : if( FD_UNLIKELY( SHOULD_PROCESS_THESE_SHREDS ) ) {
669 : /* If it's our turn, shred this batch. FD_UNLIKELY because shred
670 : tile cnt generally >= 2 */
671 :
672 0 : long shredding_timing = -fd_tickcount();
673 :
674 0 : fd_memset( ctx->pending_batch.payload + ctx->pending_batch.pos, 0, padding_sz );
675 :
676 0 : ctx->send_fec_set_cnt = 0UL; /* verbose */
677 0 : ctx->shredded_txn_cnt = ctx->pending_batch.txn_cnt;
678 :
679 0 : fd_shredder_init_batch( ctx->shredder, ctx->pending_batch.raw, batch_sz_padded, target_slot, entry_meta );
680 :
681 0 : ulong pend_sz = batch_sz_padded;
682 0 : ulong pend_idx = 0;
683 0 : while( pend_sz > 0UL ) {
684 :
685 0 : fd_fec_set_t * out = ctx->fec_sets + ctx->shredder_fec_set_idx;
686 :
687 0 : FD_TEST( fd_shredder_next_fec_set( ctx->shredder, out, chained_merkle_root ) );
688 0 : memcpy( ctx->out_merkle_roots[pend_idx].hash, chained_merkle_root, 32UL );
689 :
690 0 : out->data_shred_rcvd = 0U;
691 0 : out->parity_shred_rcvd = 0U;
692 :
693 0 : ctx->send_fec_set_idx[ ctx->send_fec_set_cnt ] = ctx->shredder_fec_set_idx;
694 0 : ctx->send_fec_set_cnt += 1UL;
695 0 : ctx->shredder_fec_set_idx = (ctx->shredder_fec_set_idx+1UL)%ctx->shredder_max_fec_set_idx;
696 :
697 0 : pend_sz -= load_for_32_shreds;
698 0 : pend_idx++;
699 0 : }
700 :
701 0 : fd_shredder_fini_batch( ctx->shredder );
702 0 : shredding_timing += fd_tickcount();
703 :
704 : /* Update metrics */
705 0 : fd_histf_sample( ctx->metrics->batch_sz, batch_sz /* without padding */ );
706 0 : fd_histf_sample( ctx->metrics->batch_microblock_cnt, ctx->pending_batch.microblock_cnt );
707 0 : fd_histf_sample( ctx->metrics->shredding_timing, (ulong)shredding_timing );
708 0 : } else {
709 0 : ctx->send_fec_set_cnt = 0UL; /* verbose */
710 :
711 0 : fd_shredder_skip_batch( ctx->shredder, batch_sz_padded, target_slot, entry_meta->block_complete );
712 0 : }
713 :
714 0 : ctx->pending_batch.slot = 0UL;
715 0 : ctx->pending_batch.pos = 0UL;
716 0 : ctx->pending_batch.microblock_cnt = 0UL;
717 0 : ctx->pending_batch.txn_cnt = 0UL;
718 0 : ctx->batch_cnt++;
719 0 : }
720 :
721 0 : if( FD_UNLIKELY( init_new_batch ) ) {
722 : /* TODO: this assumes that SHOULD_PROCESS_THESE_SHREDS is
723 : constant across batches. Otherwise, the condition may
724 : need to be removed (or adjusted). */
725 0 : if( FD_UNLIKELY( SHOULD_PROCESS_THESE_SHREDS ) ) {
726 : /* Ugh, yet another memcpy */
727 0 : fd_memcpy( ctx->pending_batch.payload + 0UL /* verbose */, entry, entry_sz );
728 0 : }
729 0 : ctx->pending_batch.slot = target_slot;
730 0 : ctx->pending_batch.pos = entry_sz;
731 0 : ctx->pending_batch.microblock_cnt = 1UL;
732 0 : ctx->pending_batch.txn_cnt = microblock->txn_cnt;
733 0 : }
734 0 : }
735 0 : } else if( FD_UNLIKELY( ctx->in_kind[ in_idx ]==IN_KIND_NET ) ) {
736 : /* The common case, from the net tile. The FEC resolver API does
737 : not present a prepare/commit model. If we get overrun between
738 : when the FEC resolver verifies the signature and when it stores
739 : the local copy, we could end up storing and retransmitting
740 : garbage. Instead we copy it locally, sadly, and only give it to
741 : the FEC resolver when we know it won't be overrun anymore. */
742 0 : uchar const * dcache_entry = fd_net_rx_translate_frag( &ctx->in[ in_idx ].net_rx, chunk, ctl, sz );
743 0 : ulong hdr_sz = fd_disco_netmux_sig_hdr_sz( sig );
744 0 : FD_TEST( hdr_sz <= sz ); /* Should be ensured by the net tile */
745 0 : fd_shred_t const * shred = fd_shred_parse( dcache_entry+hdr_sz, sz-hdr_sz );
746 0 : if( FD_UNLIKELY( !shred ) ) {
747 0 : ctx->skip_frag = 1;
748 0 : return;
749 0 : };
750 :
751 0 : if( FD_UNLIKELY( fd_disco_netmux_sig_proto( sig )==DST_PROTO_REPAIR ) ) {
752 0 : ctx->metrics->repair_rcv_cnt++;
753 0 : ctx->metrics->repair_rcv_bytes += sz;
754 0 : } else {
755 0 : ctx->metrics->turbine_rcv_cnt++;
756 0 : ctx->metrics->turbine_rcv_bytes += sz;
757 0 : }
758 :
759 : /* Drop unchained merkle shreds */
760 0 : int is_unchained = !fd_shred_is_chained( fd_shred_type( shred->variant ) );
761 0 : if( FD_UNLIKELY( is_unchained ) ) {
762 0 : ctx->metrics->shred_rejected_unchained_cnt++;
763 0 : ctx->skip_frag = 1;
764 0 : return;
765 0 : };
766 :
767 : /* all shreds in the same FEC set will have the same signature
768 : so we can round-robin shreds between the shred tiles based on
769 : just the signature without splitting individual FEC sets. */
770 0 : ulong sig = fd_ulong_load_8( shred->signature );
771 0 : if( FD_LIKELY( sig%ctx->round_robin_cnt!=ctx->round_robin_id ) ) {
772 0 : ctx->skip_frag = 1;
773 0 : return;
774 0 : }
775 0 : fd_memcpy( ctx->shred_buffer, dcache_entry+hdr_sz, sz-hdr_sz );
776 0 : ctx->shred_buffer_sz = sz-hdr_sz;
777 0 : }
778 0 : }
779 :
780 : static inline void
781 : send_shred( fd_shred_ctx_t * ctx,
782 : fd_stem_context_t * stem,
783 : fd_shred_t const * shred,
784 : fd_shred_dest_weighted_t const * dest,
785 0 : ulong tsorig ) {
786 :
787 0 : if( FD_UNLIKELY( !dest->ip4 ) ) return;
788 :
789 0 : uchar * packet = fd_chunk_to_laddr( ctx->net_out_mem, ctx->net_out_chunk );
790 :
791 0 : int is_data = fd_shred_is_data( fd_shred_type( shred->variant ) );
792 0 : fd_ip4_udp_hdrs_t * hdr = (fd_ip4_udp_hdrs_t *)packet;
793 0 : *hdr = *( is_data ? ctx->data_shred_net_hdr : ctx->parity_shred_net_hdr );
794 :
795 0 : fd_ip4_hdr_t * ip4 = hdr->ip4;
796 0 : ip4->daddr = dest->ip4;
797 0 : ip4->net_id = fd_ushort_bswap( ctx->net_id++ );
798 0 : ip4->check = 0U;
799 0 : ip4->check = fd_ip4_hdr_check_fast( ip4 );
800 :
801 0 : hdr->udp->net_dport = fd_ushort_bswap( dest->port );
802 :
803 0 : ulong shred_sz = fd_ulong_if( is_data, FD_SHRED_MIN_SZ, FD_SHRED_MAX_SZ );
804 0 : #if FD_HAS_AVX
805 : /* We're going to copy this shred potentially a bunch of times without
806 : reading it again, and we'd rather not thrash our cache, so we want
807 : to use non-temporal writes here. We need to make sure we don't
808 : touch the cache line containing the network headers that we just
809 : wrote to though. We know the destination is 64 byte aligned. */
810 0 : FD_STATIC_ASSERT( sizeof(*hdr)<64UL, non_temporal );
811 : /* src[0:sizeof(hdrs)] is invalid, but now we want to copy
812 : dest[i]=src[i] for i>=sizeof(hdrs), so it simplifies the code. */
813 0 : uchar const * src = (uchar const *)((ulong)shred - sizeof(fd_ip4_udp_hdrs_t));
814 0 : memcpy( packet+sizeof(fd_ip4_udp_hdrs_t), src+sizeof(fd_ip4_udp_hdrs_t), 64UL-sizeof(fd_ip4_udp_hdrs_t) );
815 :
816 0 : ulong end_offset = shred_sz + sizeof(fd_ip4_udp_hdrs_t);
817 0 : ulong i;
818 0 : for( i=64UL; end_offset-i<64UL; i+=64UL ) {
819 0 : # if FD_HAS_AVX512
820 0 : _mm512_stream_si512( (void *)(packet+i ), _mm512_loadu_si512( (void const *)(src+i ) ) );
821 : # else
822 : _mm256_stream_si256( (void *)(packet+i ), _mm256_loadu_si256( (void const *)(src+i ) ) );
823 : _mm256_stream_si256( (void *)(packet+i+32UL), _mm256_loadu_si256( (void const *)(src+i+32UL) ) );
824 : # endif
825 0 : }
826 0 : _mm_sfence();
827 0 : fd_memcpy( packet+i, src+i, end_offset-i ); /* Copy the last partial cache line */
828 :
829 : #else
830 : fd_memcpy( packet+sizeof(fd_ip4_udp_hdrs_t), shred, shred_sz );
831 : #endif
832 :
833 0 : ulong pkt_sz = shred_sz + sizeof(fd_ip4_udp_hdrs_t);
834 0 : ulong tspub = fd_frag_meta_ts_comp( fd_tickcount() );
835 0 : ulong sig = fd_disco_netmux_sig( dest->ip4, dest->port, dest->ip4, DST_PROTO_OUTGOING, sizeof(fd_ip4_udp_hdrs_t) );
836 0 : ulong const chunk = ctx->net_out_chunk;
837 0 : fd_stem_publish( stem, NET_OUT_IDX, sig, chunk, pkt_sz, 0UL, tsorig, tspub );
838 0 : ctx->net_out_chunk = fd_dcache_compact_next( chunk, pkt_sz, ctx->net_out_chunk0, ctx->net_out_wmark );
839 0 : }
840 :
841 : static void
842 : after_frag( fd_shred_ctx_t * ctx,
843 : ulong in_idx,
844 : ulong seq,
845 : ulong sig,
846 : ulong sz,
847 : ulong tsorig,
848 : ulong _tspub,
849 0 : fd_stem_context_t * stem ) {
850 0 : (void)seq;
851 0 : (void)sz;
852 0 : (void)tsorig;
853 0 : (void)_tspub;
854 :
855 0 : if( FD_UNLIKELY( ctx->skip_frag ) ) return;
856 :
857 0 : if( FD_UNLIKELY( ctx->in_kind[ in_idx ]==IN_KIND_CONTACT ) ) {
858 0 : finalize_new_cluster_contact_info( ctx );
859 0 : return;
860 0 : }
861 :
862 0 : if( FD_UNLIKELY( ctx->in_kind[ in_idx ]==IN_KIND_EPOCH ) ) {
863 0 : fd_stake_ci_epoch_msg_fini( ctx->stake_ci );
864 0 : return;
865 0 : }
866 :
867 0 : if( FD_UNLIKELY( ctx->in_kind[ in_idx ]==IN_KIND_STAKE ) ) {
868 0 : fd_stake_ci_stake_msg_fini( ctx->stake_ci );
869 0 : return;
870 0 : }
871 :
872 0 : if( FD_UNLIKELY( (ctx->in_kind[ in_idx ]==IN_KIND_ROOTED) | (ctx->in_kind[ in_idx ]==IN_KIND_ROOTEDH) ) ) {
873 0 : if( FD_LIKELY( (ctx->new_root > 0UL) & (ctx->new_root<ULONG_MAX) ) ) fd_fec_resolver_advance_slot_old( ctx->resolver, ctx->new_root );
874 0 : return;
875 0 : }
876 :
877 0 : if( FD_UNLIKELY( ctx->in_kind[ in_idx ]==IN_KIND_GOSSIP ) ) {
878 0 : if( ctx->gossip_upd_buf->tag==FD_GOSSIP_UPDATE_TAG_CONTACT_INFO ) {
879 0 : fd_gossip_contact_info_t const * ci = ctx->gossip_upd_buf->contact_info->value;
880 0 : fd_ip4_port_t tvu_addr;
881 0 : tvu_addr.addr = ci->sockets[ FD_GOSSIP_CONTACT_INFO_SOCKET_TVU ].is_ipv6 ? 0U : ci->sockets[ FD_GOSSIP_CONTACT_INFO_SOCKET_TVU ].ip4;
882 0 : tvu_addr.port = ci->sockets[ FD_GOSSIP_CONTACT_INFO_SOCKET_TVU ].port;
883 0 : if( !tvu_addr.l ){
884 0 : fd_stake_ci_dest_remove( ctx->stake_ci, fd_type_pun_const( ctx->gossip_upd_buf->origin ) );
885 0 : } else {
886 0 : fd_stake_ci_dest_update( ctx->stake_ci, fd_type_pun_const( ctx->gossip_upd_buf->origin ), tvu_addr.addr, fd_ushort_bswap( tvu_addr.port ) );
887 0 : }
888 0 : } else if( ctx->gossip_upd_buf->tag==FD_GOSSIP_UPDATE_TAG_CONTACT_INFO_REMOVE ) {
889 0 : if( FD_UNLIKELY( !memcmp( ctx->identity_key->uc, ctx->gossip_upd_buf->origin, 32UL ) ) ) {
890 : /* If our own contact info was dropped, we update with dummy IP
891 : instead of removing since stake_ci expects our contact info
892 : in the sdests table all the time. fd_stake_ci_new initializes
893 : both ei->sdests with our contact info so this should always
894 : update (and not append). */
895 0 : fd_stake_ci_dest_update( ctx->stake_ci, fd_type_pun_const( ctx->gossip_upd_buf->origin ), 1U, 0U );
896 0 : } else {
897 0 : fd_stake_ci_dest_remove( ctx->stake_ci, fd_type_pun_const( ctx->gossip_upd_buf->origin ) );
898 0 : }
899 0 : }
900 0 : return;
901 0 : }
902 :
903 0 : if( FD_UNLIKELY( (ctx->in_kind[ in_idx ]==IN_KIND_POH) & (ctx->send_fec_set_cnt==0UL) ) ) {
904 : /* Entry from PoH that didn't trigger a new FEC set to be made */
905 0 : return;
906 0 : }
907 0 : if( FD_UNLIKELY( ctx->in_kind[ in_idx ]==IN_KIND_REPAIR ) ) {
908 0 : return;
909 0 : }
910 :
911 0 : ulong fanout = 200UL; /* Default Agave's DATA_PLANE_FANOUT = 200UL */
912 :
913 0 : if( FD_LIKELY( ctx->in_kind[ in_idx ]==IN_KIND_NET ) ) {
914 0 : uchar * shred_buffer = ctx->shred_buffer;
915 0 : ulong shred_buffer_sz = ctx->shred_buffer_sz;
916 :
917 0 : fd_shred_t const * shred = fd_shred_parse( shred_buffer, shred_buffer_sz );
918 :
919 0 : if( FD_UNLIKELY( !shred ) ) { ctx->metrics->shred_processing_result[ 1 ]++; return; }
920 :
921 0 : fd_epoch_leaders_t const * lsched = fd_stake_ci_get_lsched_for_slot( ctx->stake_ci, shred->slot );
922 0 : if( FD_UNLIKELY( !lsched ) ) { ctx->metrics->shred_processing_result[ 0 ]++; return; }
923 :
924 0 : fd_pubkey_t const * slot_leader = fd_epoch_leaders_get( lsched, shred->slot );
925 0 : if( FD_UNLIKELY( !slot_leader ) ) { ctx->metrics->shred_processing_result[ 0 ]++; return; } /* Count this as bad slot too */
926 :
927 0 : fd_fec_set_t const * out_fec_set[1];
928 0 : fd_shred_t const * out_shred[1];
929 0 : fd_fec_resolver_spilled_t spilled_fec = { 0 };
930 0 : int from_repair = 0;
931 :
932 0 : uint nonce = UINT_MAX;
933 0 : ulong shred_sz = fd_shred_sz( shred );
934 0 : if( FD_UNLIKELY( (fd_disco_netmux_sig_proto( sig )==DST_PROTO_REPAIR) & (shred_buffer_sz>=shred_sz+sizeof(uint)) ) ) {
935 0 : nonce = FD_LOAD(uint, shred_buffer + shred_sz );
936 0 : long est_now_ns = fd_log_wallclock(); /* TODO: switch to fd_clock for performance */
937 0 : int nonce_okay = fd_rnonce_ss_verify( ctx->repair_nonce_ss, nonce, shred->slot, shred->idx, est_now_ns );
938 0 : ctx->metrics->bad_nonce += (ulong)(!nonce_okay);
939 0 : from_repair = nonce_okay;
940 0 : }
941 :
942 0 : long add_shred_timing = -fd_tickcount();
943 0 : int rv = fd_fec_resolver_add_shred( ctx->resolver, shred, shred_buffer_sz, from_repair, slot_leader->uc, out_fec_set, out_shred, &ctx->out_merkle_roots[0], &spilled_fec );
944 0 : add_shred_timing += fd_tickcount();
945 :
946 0 : fd_histf_sample( ctx->metrics->add_shred_timing, (ulong)add_shred_timing );
947 0 : ctx->metrics->shred_processing_result[ rv + FD_FEC_RESOLVER_ADD_SHRED_RETVAL_OFF+FD_SHRED_ADD_SHRED_EXTRA_RETVAL_CNT ]++;
948 :
949 0 : if( FD_UNLIKELY( ctx->shred_out_idx!=ULONG_MAX && /* Only send to repair in full Firedancer */
950 0 : spilled_fec.slot!=0 ) ) {
951 : /* We've spilled an in-progress FEC set in the fec_resolver. We
952 : need to let repair know to clear out it's cached info for that
953 : fec set and re-repair those shreds. */
954 0 : ulong sig_ = fd_disco_shred_out_shred_sig( 0, spilled_fec.slot, spilled_fec.fec_set_idx, FD_FEC_SHRED_CNT-1U );
955 0 : ulong tspub = fd_frag_meta_ts_comp( fd_tickcount() );
956 0 : fd_stem_publish( stem, ctx->shred_out_idx, sig_, ctx->shred_out_chunk, 0, 0, ctx->tsorig, tspub );
957 0 : }
958 :
959 0 : if( (rv==FD_FEC_RESOLVER_SHRED_OKAY) | (rv==FD_FEC_RESOLVER_SHRED_COMPLETES) | (rv==FD_FEC_RESOLVER_SHRED_DUPLICATE) ) {
960 0 : if( FD_LIKELY( fd_disco_netmux_sig_proto( sig ) != DST_PROTO_REPAIR && rv!=FD_FEC_RESOLVER_SHRED_DUPLICATE ) ) {
961 : /* Relay this shred */
962 0 : ulong max_dest_cnt[1];
963 0 : do {
964 : /* If we've validated the shred and it COMPLETES but we can't
965 : compute the destination for whatever reason, don't forward
966 : the shred, but still send it to the blockstore. */
967 0 : fd_shred_dest_t * sdest = fd_stake_ci_get_sdest_for_slot( ctx->stake_ci, shred->slot );
968 0 : if( FD_UNLIKELY( !sdest ) ) break;
969 0 : int use_chacha8 = ( shred->slot >= ctx->features_activation->switch_to_chacha8_turbine );
970 0 : fd_shred_dest_idx_t * dests = fd_shred_dest_compute_children( sdest, &shred, 1UL, ctx->scratchpad_dests, 1UL, fanout, fanout, max_dest_cnt, use_chacha8 );
971 0 : if( FD_UNLIKELY( !dests ) ) break;
972 :
973 0 : for( ulong i=0UL; i<ctx->adtl_dests_retransmit_cnt; i++ ) send_shred( ctx, stem, *out_shred, ctx->adtl_dests_retransmit+i, ctx->tsorig );
974 0 : for( ulong j=0UL; j<*max_dest_cnt; j++ ) send_shred( ctx, stem, *out_shred, fd_shred_dest_idx_to_dest( sdest, dests[ j ] ), ctx->tsorig );
975 0 : } while( 0 );
976 0 : }
977 :
978 0 : if( FD_LIKELY( ctx->shred_out_idx!=ULONG_MAX ) ) { /* Only send to repair/replay in full Firedancer */
979 :
980 : /* Construct the sig from the shred. */
981 :
982 0 : int is_code = fd_shred_is_code( fd_shred_type( shred->variant ) );
983 0 : uint shred_idx_or_data_cnt = shred->idx;
984 0 : if( FD_LIKELY( is_code ) ) shred_idx_or_data_cnt = shred->code.data_cnt; /* optimize for code_cnt >= data_cnt */
985 0 : ulong _sig = fd_disco_shred_out_shred_sig( fd_disco_netmux_sig_proto(sig)==DST_PROTO_SHRED, shred->slot, shred->fec_set_idx, shred_idx_or_data_cnt );
986 :
987 : /* Copy the shred header into the frag and publish. */
988 :
989 0 : ulong sz = fd_shred_header_sz( shred->variant );
990 0 : fd_memcpy( fd_chunk_to_laddr( ctx->shred_out_mem, ctx->shred_out_chunk ), shred, sz );
991 :
992 0 : fd_memcpy( (uchar *)fd_chunk_to_laddr( ctx->shred_out_mem, ctx->shred_out_chunk ) + sz, &ctx->out_merkle_roots[0], FD_SHRED_MERKLE_ROOT_SZ );
993 0 : sz += FD_SHRED_MERKLE_ROOT_SZ;
994 :
995 0 : fd_memcpy( (uchar *)fd_chunk_to_laddr( ctx->shred_out_mem, ctx->shred_out_chunk ) + sz, (uchar *)shred + fd_shred_chain_off( shred->variant ), FD_SHRED_MERKLE_ROOT_SZ );
996 0 : sz += FD_SHRED_MERKLE_ROOT_SZ;
997 :
998 0 : FD_STORE(uint, fd_chunk_to_laddr( ctx->shred_out_mem, ctx->shred_out_chunk ) + sz, nonce );
999 0 : sz += 4UL;
1000 :
1001 0 : ulong tspub = fd_frag_meta_ts_comp( fd_tickcount() );
1002 0 : fd_stem_publish( stem, ctx->shred_out_idx, _sig, ctx->shred_out_chunk, sz, 0UL, ctx->tsorig, tspub );
1003 0 : ctx->shred_out_chunk = fd_dcache_compact_next( ctx->shred_out_chunk, sz, ctx->shred_out_chunk0, ctx->shred_out_wmark );
1004 0 : }
1005 0 : }
1006 0 : if( FD_LIKELY( rv!=FD_FEC_RESOLVER_SHRED_COMPLETES ) ) return;
1007 :
1008 0 : FD_TEST( ctx->fec_sets <= *out_fec_set );
1009 0 : ctx->send_fec_set_idx[ 0UL ] = (ulong)(*out_fec_set - ctx->fec_sets);
1010 0 : ctx->send_fec_set_cnt = 1UL;
1011 0 : ctx->shredded_txn_cnt = 0UL;
1012 0 : }
1013 :
1014 0 : if( FD_UNLIKELY( ctx->send_fec_set_cnt==0UL ) ) return;
1015 :
1016 : /* Try to distribute shredded txn count across the fec sets.
1017 : This is an approximation, but it is acceptable. */
1018 0 : ulong shredded_txn_cnt_per_fec_set = ctx->shredded_txn_cnt / ctx->send_fec_set_cnt;
1019 0 : ulong shredded_txn_cnt_remain = ctx->shredded_txn_cnt - shredded_txn_cnt_per_fec_set * ctx->send_fec_set_cnt;
1020 0 : ulong shredded_txn_cnt_last_fec_set = shredded_txn_cnt_per_fec_set + shredded_txn_cnt_remain;
1021 :
1022 : /* If this shred completes a FEC set or is part of a microblock from
1023 : pack (ie. we're leader), we now have a full FEC set: so we notify
1024 : repair and insert into the blockstore, as well as retransmit. */
1025 :
1026 0 : for( ulong fset_k=0; fset_k<ctx->send_fec_set_cnt; fset_k++ ) {
1027 :
1028 0 : fd_fec_set_t * set = ctx->fec_sets + ctx->send_fec_set_idx[ fset_k ];
1029 :
1030 0 : fd_shred_t const * last = set->data_shreds[ FD_FEC_SHRED_CNT - 1 ].s;
1031 :
1032 : /* Compute merkle root and chained merkle root. */
1033 :
1034 0 : if( FD_LIKELY( ctx->store ) ) { /* firedancer-only */
1035 :
1036 : /* Insert shreds into the store. We do this regardless of whether
1037 : we are leader. */
1038 :
1039 0 : fd_store_fec_t * fec = fd_store_insert( ctx->store, ctx->round_robin_id, (fd_hash_t *)fd_type_pun( &ctx->out_merkle_roots[fset_k] ) );
1040 :
1041 : /* Firedancer is configured such that the store never fills up, as
1042 : the reasm is responsible for also evicting from store (based on
1043 : its eviction policy, see fd_reasm.h). fec is only NULL when the
1044 : store is full, so this is either a bug or misconfiguration. */
1045 :
1046 0 : if( FD_UNLIKELY( !fec ) ) FD_LOG_CRIT(( "store full" ));
1047 :
1048 : /* It's safe to memcpy the FEC payload outside of the shared lock,
1049 : because the store ele is guaranteed to remain valid here. It
1050 : is not possible for a fd_store_remove to interleave, because
1051 : remove is only called by replay_tile, which (crucially) is only
1052 : sent this FEC via stem publish after we have finished copying.
1053 :
1054 : Copying outside the shared lock scope also means that we can
1055 : lower the duration for which the shared lock is held, and
1056 : enables replay to acquire the exclusive lock for removes
1057 : without getting starved. */
1058 :
1059 0 : if( FD_LIKELY( !fec->data_sz ) ) {
1060 : /* if data_sz is non-zero, we've already inserted this FEC set into the store */
1061 0 : for( ulong i=0UL; i<FD_FEC_SHRED_CNT; i++ ) {
1062 0 : fd_shred_t * data_shred = set->data_shreds[i].s;
1063 0 : ulong payload_sz = fd_shred_payload_sz( data_shred );
1064 0 : if( FD_UNLIKELY( fec->data_sz + payload_sz > FD_STORE_DATA_MAX ) ) {
1065 :
1066 : /* This code is only reachable if shred tile has completed the
1067 : FEC set, which implies it was able to validate it, yet
1068 : somehow the total payload sz of this FEC set exceeds the
1069 : maximum payload sz. This indicates either a serious bug or
1070 : shred tile is compromised so FD_LOG_CRIT. */
1071 :
1072 0 : FD_LOG_CRIT(( "Shred tile %lu: completed FEC set %lu %u data_sz: %lu exceeds FD_STORE_DATA_MAX: %lu. Ignoring FEC set.", ctx->round_robin_id, data_shred->slot, data_shred->fec_set_idx, fec->data_sz + payload_sz, FD_STORE_DATA_MAX ));
1073 0 : }
1074 0 : fd_memcpy( fec->data + fec->data_sz, fd_shred_data_payload( data_shred ), payload_sz );
1075 0 : fec->data_sz += payload_sz;
1076 0 : if( FD_LIKELY( i<32UL ) ) fec->block_offs[ i ] = (uint)payload_sz + (i==0UL ? 0U : fec->block_offs[ i-1UL ]);
1077 0 : }
1078 0 : }
1079 0 : }
1080 :
1081 0 : if( FD_LIKELY( ctx->shred_out_idx!=ULONG_MAX ) ) { /* firedancer-only */
1082 :
1083 : /* Additionally, publish a frag to notify repair and replay that
1084 : the FEC set is complete. Note the ordering wrt store shred
1085 : insertion above is intentional: shreds are inserted into the
1086 : store before notifying repair and replay. This is because the
1087 : replay tile assumes the shreds are already in the store when
1088 : replay gets a notification from the shred tile that the FEC is
1089 : complete. We we don't know whether shred will finish inserting
1090 : into store first or repair will finish validating the FEC set
1091 : first. The header and merkle root of the last shred in the FEC
1092 : set are sent as part of this frag.
1093 :
1094 : This message, the shred msg, and the FEC evict msg constitute
1095 : the max 3 possible messages to repair/replay per after_frag.
1096 : In reality, it is only possible to publish all 3 in the case
1097 : where we receive a coding shred first for a FEC set where
1098 : (N=1,K=18), which allows for the FEC set to be instantly
1099 : completed by the singular coding shred, and that also happens
1100 : to evict a FEC set from the curr_map. When fix-32 arrives, the
1101 : link burst value can be lowered to 2. */
1102 :
1103 0 : int is_leader_fec = ctx->in_kind[ in_idx ]==IN_KIND_POH;
1104 :
1105 0 : ulong sig = fd_disco_shred_out_fec_sig( last->slot, last->fec_set_idx, (uint)FD_FEC_SHRED_CNT, last->data.flags & FD_SHRED_DATA_FLAG_SLOT_COMPLETE );
1106 0 : uchar * chunk = fd_chunk_to_laddr( ctx->shred_out_mem, ctx->shred_out_chunk );
1107 0 : memcpy( chunk, last, FD_SHRED_DATA_HEADER_SZ );
1108 0 : memcpy( chunk+FD_SHRED_DATA_HEADER_SZ, ctx->out_merkle_roots[fset_k].hash, FD_SHRED_MERKLE_ROOT_SZ );
1109 0 : memcpy( chunk+FD_SHRED_DATA_HEADER_SZ + FD_SHRED_MERKLE_ROOT_SZ, (uchar *)last + fd_shred_chain_off( last->variant ), FD_SHRED_MERKLE_ROOT_SZ );
1110 0 : memcpy( chunk+FD_SHRED_DATA_HEADER_SZ + (FD_SHRED_MERKLE_ROOT_SZ*2UL), &is_leader_fec, sizeof(int));
1111 :
1112 0 : ulong sz = FD_SHRED_DATA_HEADER_SZ + FD_SHRED_MERKLE_ROOT_SZ * 2 + sizeof(int);
1113 0 : ulong tspub = fd_frag_meta_ts_comp( fd_tickcount() );
1114 0 : fd_stem_publish( stem, ctx->shred_out_idx, sig, ctx->shred_out_chunk, sz, 0UL, ctx->tsorig, tspub );
1115 0 : ctx->shred_out_chunk = fd_dcache_compact_next( ctx->shred_out_chunk, sz, ctx->shred_out_chunk0, ctx->shred_out_wmark );
1116 :
1117 0 : } else if( FD_UNLIKELY( ctx->store_out_idx != ULONG_MAX ) ) { /* frankendancer-only */
1118 :
1119 : /* Send to the blockstore */
1120 :
1121 0 : ulong txn_cnt = fd_ulong_if( fset_k==ctx->send_fec_set_cnt-1UL, shredded_txn_cnt_last_fec_set, shredded_txn_cnt_per_fec_set );
1122 : /* If the low 32 bits of sig are 0, the store tile will do extra
1123 : checks */
1124 0 : ulong new_sig = txn_cnt<<32 | (ulong)(ctx->in_kind[ in_idx ]!=IN_KIND_NET);
1125 0 : ulong tspub = fd_frag_meta_ts_comp( fd_tickcount() );
1126 : /* The size is actually slightly larger than USHORT_MAX, but the store tile
1127 : knows to use sizeof(fd_fec_set_t) instead of the sz field. Put
1128 : USHORT_MAX so that monitoring tools are at least close. */
1129 0 : ulong sz = fd_ulong_min( sizeof(fd_fec_set_t), USHORT_MAX );
1130 0 : fd_stem_publish( stem, 0UL, new_sig, fd_laddr_to_chunk( ctx->store_out_mem, set ), sz, 0UL, ctx->tsorig, tspub );
1131 0 : }
1132 :
1133 : /* Compute all the destinations for all the new shreds */
1134 :
1135 0 : fd_shred_t const * new_shreds[ FD_REEDSOL_DATA_SHREDS_MAX+FD_REEDSOL_PARITY_SHREDS_MAX ];
1136 0 : ulong k=0UL;
1137 0 : for( ulong i=0UL; i<FD_FEC_SHRED_CNT; i++ )
1138 0 : if( !(set->data_shred_rcvd & (1U<<i)) ) new_shreds[ k++ ] = set->data_shreds [ i ].s;
1139 0 : for( ulong i=0UL; i<FD_FEC_SHRED_CNT; i++ )
1140 0 : if( !(set->parity_shred_rcvd & (1U<<i)) ) new_shreds[ k++ ] = set->parity_shreds[ i ].s;
1141 :
1142 0 : if( FD_UNLIKELY( !k ) ) return;
1143 0 : fd_shred_dest_t * sdest = fd_stake_ci_get_sdest_for_slot( ctx->stake_ci, new_shreds[ 0 ]->slot );
1144 0 : if( FD_UNLIKELY( !sdest ) ) return;
1145 0 : int use_chacha8 = ( new_shreds[ 0 ]->slot >= ctx->features_activation->switch_to_chacha8_turbine );
1146 :
1147 0 : ulong out_stride;
1148 0 : ulong max_dest_cnt[1];
1149 0 : fd_shred_dest_idx_t * dests;
1150 0 : if( FD_LIKELY( ctx->in_kind[ in_idx ]==IN_KIND_NET ) ) {
1151 0 : for( ulong i=0UL; i<k; i++ ) {
1152 0 : for( ulong j=0UL; j<ctx->adtl_dests_retransmit_cnt; j++ ) send_shred( ctx, stem, new_shreds[ i ], ctx->adtl_dests_retransmit+j, ctx->tsorig );
1153 0 : }
1154 0 : out_stride = k;
1155 : /* In the case of feature activation, the fanout used below is
1156 : the same as the one calculated/modified previously at the
1157 : beginning of after_frag() for IN_KIND_NET in this slot. */
1158 0 : dests = fd_shred_dest_compute_children( sdest, new_shreds, k, ctx->scratchpad_dests, k, fanout, fanout, max_dest_cnt, use_chacha8 );
1159 0 : } else {
1160 0 : for( ulong i=0UL; i<k; i++ ) {
1161 0 : for( ulong j=0UL; j<ctx->adtl_dests_leader_cnt; j++ ) send_shred( ctx, stem, new_shreds[ i ], ctx->adtl_dests_leader+j, ctx->tsorig );
1162 0 : }
1163 0 : out_stride = 1UL;
1164 0 : *max_dest_cnt = 1UL;
1165 0 : dests = fd_shred_dest_compute_first ( sdest, new_shreds, k, ctx->scratchpad_dests, use_chacha8 );
1166 0 : }
1167 0 : if( FD_UNLIKELY( !dests ) ) return;
1168 :
1169 : /* Send only the ones we didn't receive. */
1170 0 : for( ulong i=0UL; i<k; i++ ) {
1171 0 : for( ulong j=0UL; j<*max_dest_cnt; j++ ) send_shred( ctx, stem, new_shreds[ i ], fd_shred_dest_idx_to_dest( sdest, dests[ j*out_stride+i ]), ctx->tsorig );
1172 0 : }
1173 0 : }
1174 0 : }
1175 :
1176 : static void
1177 : privileged_init( fd_topo_t * topo,
1178 0 : fd_topo_tile_t * tile ) {
1179 0 : void * scratch = fd_topo_obj_laddr( topo, tile->tile_obj_id );
1180 0 : FD_TEST( scratch!=NULL );
1181 :
1182 0 : FD_SCRATCH_ALLOC_INIT( l, scratch );
1183 0 : fd_shred_ctx_t * ctx = FD_SCRATCH_ALLOC_APPEND( l, alignof( fd_shred_ctx_t ), sizeof( fd_shred_ctx_t ) );
1184 :
1185 0 : if( FD_UNLIKELY( !strcmp( tile->shred.identity_key_path, "" ) ) )
1186 0 : FD_LOG_ERR(( "identity_key_path not set" ));
1187 :
1188 0 : ctx->identity_key[ 0 ] = *(fd_pubkey_t const *)fd_type_pun_const( fd_keyload_load( tile->shred.identity_key_path, /* pubkey only: */ 1 ) );
1189 :
1190 0 : if( FD_UNLIKELY( !fd_rng_secure( &(ctx->resolver_seed), sizeof(ulong) ) ) ) {
1191 0 : FD_LOG_CRIT(( "fd_rng_secure failed" ));
1192 0 : }
1193 : /* This is only needed in frankendancer, but we'll overwrite it with
1194 : the value the repair tile generated in full firedancer. */
1195 0 : if( FD_UNLIKELY( !fd_rng_secure( ctx->repair_nonce_ss->bytes, sizeof(fd_rnonce_ss_t) ) ) ) {
1196 0 : FD_LOG_CRIT(( "fd_rng_secure failed" ));
1197 0 : }
1198 0 : }
1199 :
1200 : static void
1201 : fd_shred_signer( void * signer_ctx,
1202 : uchar signature[ static 64 ],
1203 0 : uchar const merkle_root[ static 32 ] ) {
1204 0 : fd_keyguard_client_sign( signer_ctx, signature, merkle_root, 32UL, FD_KEYGUARD_SIGN_TYPE_ED25519 );
1205 0 : }
1206 :
1207 : static void
1208 : unprivileged_init( fd_topo_t * topo,
1209 0 : fd_topo_tile_t * tile ) {
1210 :
1211 0 : FD_TEST( 0==strcmp( topo->links[tile->out_link_id[ NET_OUT_IDX ]].name, "shred_net" ) );
1212 0 : FD_TEST( 0==strcmp( topo->links[tile->out_link_id[ SIGN_OUT_IDX ]].name, "shred_sign" ) );
1213 :
1214 0 : if( FD_UNLIKELY( !tile->out_cnt ) )
1215 0 : FD_LOG_ERR(( "shred tile has no primary output link" ));
1216 :
1217 0 : ulong shred_store_mcache_depth = tile->shred.depth;
1218 0 : if( topo->links[ tile->out_link_id[ 0 ] ].depth != shred_store_mcache_depth )
1219 0 : FD_LOG_ERR(( "shred tile out depths are not equal %lu %lu",
1220 0 : topo->links[ tile->out_link_id[ 0 ] ].depth, shred_store_mcache_depth ));
1221 :
1222 0 : void * scratch = fd_topo_obj_laddr( topo, tile->tile_obj_id );
1223 0 : FD_TEST( scratch!=NULL );
1224 :
1225 0 : FD_SCRATCH_ALLOC_INIT( l, scratch );
1226 0 : fd_shred_ctx_t * ctx = FD_SCRATCH_ALLOC_APPEND( l, alignof( fd_shred_ctx_t ), sizeof( fd_shred_ctx_t ) );
1227 :
1228 0 : ctx->round_robin_cnt = fd_topo_tile_name_cnt( topo, tile->name );
1229 0 : ctx->round_robin_id = tile->kind_id;
1230 0 : ctx->batch_cnt = 0UL;
1231 0 : ctx->slot = ULONG_MAX;
1232 :
1233 : /* If the default partial_depth is ever changed, correspondingly
1234 : change the size of the fd_fec_intra_pool in fd_fec_repair. */
1235 0 : ulong fec_resolver_footprint = fd_fec_resolver_footprint( tile->shred.fec_resolver_depth, 1UL, shred_store_mcache_depth + 1UL,
1236 0 : 128UL * tile->shred.fec_resolver_depth );
1237 : /* See long comment at the top of this file for the computation of
1238 : fec_set_cnt. */
1239 0 : ulong fec_set_cnt = 2UL*shred_store_mcache_depth + tile->shred.fec_resolver_depth + FD_SHRED_BATCH_FEC_SETS_MAX + 2UL;
1240 0 : ulong fec_sets_required_sz = fec_set_cnt*sizeof(fd_fec_set_t);
1241 :
1242 0 : void * fec_sets_shmem = NULL;
1243 0 : ctx->shred_out_idx = fd_topo_find_tile_out_link( topo, tile, "shred_out", ctx->round_robin_id );
1244 0 : ctx->store_out_idx = fd_topo_find_tile_out_link( topo, tile, "shred_store", ctx->round_robin_id );
1245 0 : if( FD_LIKELY( ctx->shred_out_idx!=ULONG_MAX ) ) { /* firedancer-only */
1246 0 : fd_topo_link_t * shred_out = &topo->links[ tile->out_link_id[ ctx->shred_out_idx ] ];
1247 0 : ctx->shred_out_mem = topo->workspaces[ topo->objs[ shred_out->dcache_obj_id ].wksp_id ].wksp;
1248 0 : ctx->shred_out_chunk0 = fd_dcache_compact_chunk0( ctx->shred_out_mem, shred_out->dcache );
1249 0 : ctx->shred_out_wmark = fd_dcache_compact_wmark ( ctx->shred_out_mem, shred_out->dcache, shred_out->mtu );
1250 0 : ctx->shred_out_chunk = ctx->shred_out_chunk0;
1251 0 : FD_TEST( fd_dcache_compact_is_safe( ctx->shred_out_mem, shred_out->dcache, shred_out->mtu, shred_out->depth ) );
1252 0 : ulong fec_sets_obj_id = fd_pod_queryf_ulong( topo->props, ULONG_MAX, "fec_sets" );
1253 0 : if( FD_UNLIKELY( fec_sets_obj_id == ULONG_MAX ) ) FD_LOG_ERR(( "invalid firedancer topo" ));
1254 0 : fd_topo_obj_t const * obj = &topo->objs[ fec_sets_obj_id ];
1255 0 : if( FD_UNLIKELY( obj->footprint<(fec_sets_required_sz*ctx->round_robin_cnt) ) ) {
1256 0 : FD_LOG_ERR(( "fec_sets wksp obj too small. It is %lu bytes but must be at least %lu bytes. ",
1257 0 : obj->footprint,
1258 0 : fec_sets_required_sz ));
1259 0 : }
1260 0 : fec_sets_shmem = (uchar *)fd_topo_obj_laddr( topo, fec_sets_obj_id ) + (ctx->round_robin_id * fec_sets_required_sz);
1261 :
1262 : /* Initialize the rnonce. The repair tile sets it, so we can only
1263 : do this in firedancer mode. In frankendancer mode, we initialize
1264 : it randomly in privileged_init just so that an attacker can't
1265 : guess it. */
1266 0 : FD_LOG_DEBUG(( "Loading rnonce_ss" ));
1267 0 : ulong rnonce_ss_id = fd_pod_queryf_ulong( topo->props, ULONG_MAX, "rnonce_ss" );
1268 0 : FD_TEST( rnonce_ss_id!=ULONG_MAX );
1269 0 : void const * shared_rnonce = fd_topo_obj_laddr( topo, rnonce_ss_id );
1270 0 : ulong * nonce_initialized = (ulong *)(sizeof(fd_rnonce_ss_t)+(uchar const *)shared_rnonce);
1271 0 : while( !FD_VOLATILE_CONST( *nonce_initialized ) ) FD_SPIN_PAUSE();
1272 0 : FD_COMPILER_MFENCE();
1273 0 : memcpy( ctx->repair_nonce_ss, shared_rnonce, sizeof(fd_rnonce_ss_t) );
1274 0 : FD_LOG_DEBUG(( "Loaded rnonce_ss" ));
1275 :
1276 0 : } else if ( FD_LIKELY( ctx->store_out_idx!=ULONG_MAX ) ) { /* frankendancer-only */
1277 0 : FD_TEST( 0==strcmp( topo->links[tile->out_link_id[ ctx->store_out_idx ]].name, "shred_store" ) );
1278 0 : fec_sets_shmem = topo->links[ tile->out_link_id[ ctx->store_out_idx ] ].dcache;
1279 0 : if( FD_UNLIKELY( fd_dcache_data_sz( fec_sets_shmem )<fec_sets_required_sz ) ) {
1280 0 : FD_LOG_ERR(( "shred_store dcache too small. It is %lu bytes but must be at least %lu bytes. ",
1281 0 : fd_dcache_data_sz( fec_sets_shmem ),
1282 0 : fec_sets_required_sz ));
1283 0 : }
1284 0 : }
1285 :
1286 0 : if( FD_UNLIKELY( !tile->shred.fec_resolver_depth ) ) FD_LOG_ERR(( "fec_resolver_depth not set" ));
1287 0 : if( FD_UNLIKELY( !tile->shred.shred_listen_port ) ) FD_LOG_ERR(( "shred_listen_port not set" ));
1288 :
1289 0 : void * _stake_ci = FD_SCRATCH_ALLOC_APPEND( l, fd_stake_ci_align(), fd_stake_ci_footprint() );
1290 0 : void * _resolver = FD_SCRATCH_ALLOC_APPEND( l, fd_fec_resolver_align(), fec_resolver_footprint );
1291 0 : void * _shredder = FD_SCRATCH_ALLOC_APPEND( l, fd_shredder_align(), fd_shredder_footprint() );
1292 :
1293 0 : fd_fec_set_t * fec_sets = (fd_fec_set_t *)fec_sets_shmem;
1294 :
1295 0 : #define NONNULL( x ) (__extension__({ \
1296 0 : __typeof__((x)) __x = (x); \
1297 0 : if( FD_UNLIKELY( !__x ) ) FD_LOG_ERR(( #x " was unexpectedly NULL" )); \
1298 0 : __x; }))
1299 :
1300 0 : int has_ipecho_in = fd_topo_find_tile_in_link( topo, tile, "ipecho_out", 0UL )!=ULONG_MAX;
1301 0 : ushort expected_shred_version = tile->shred.expected_shred_version;
1302 0 : if( FD_UNLIKELY( !has_ipecho_in && !expected_shred_version ) ) {
1303 0 : ulong busy_obj_id = fd_pod_query_ulong( topo->props, "pohh_shred", ULONG_MAX );
1304 0 : FD_TEST( busy_obj_id!=ULONG_MAX );
1305 0 : ulong * gossip_shred_version = fd_fseq_join( fd_topo_obj_laddr( topo, busy_obj_id ) );
1306 0 : FD_LOG_INFO(( "Waiting for shred version to be determined via gossip." ));
1307 0 : ulong _expected_shred_version = ULONG_MAX;
1308 0 : do {
1309 0 : _expected_shred_version = FD_VOLATILE_CONST( *gossip_shred_version );
1310 0 : } while( _expected_shred_version==ULONG_MAX );
1311 :
1312 0 : if( FD_UNLIKELY( _expected_shred_version>USHORT_MAX ) ) FD_LOG_ERR(( "invalid shred version %lu", _expected_shred_version ));
1313 0 : FD_LOG_INFO(( "Using shred version %hu", (ushort)_expected_shred_version ));
1314 0 : expected_shred_version = (ushort)_expected_shred_version;
1315 0 : }
1316 :
1317 0 : ctx->keyswitch = fd_keyswitch_join( fd_topo_obj_laddr( topo, tile->id_keyswitch_obj_id ) );
1318 0 : FD_TEST( ctx->keyswitch );
1319 :
1320 : /* populate ctx */
1321 0 : ulong sign_in_idx = fd_topo_find_tile_in_link( topo, tile, "sign_shred", tile->kind_id );
1322 0 : FD_TEST( sign_in_idx!=ULONG_MAX );
1323 0 : fd_topo_link_t * sign_in = &topo->links[ tile->in_link_id[ sign_in_idx ] ];
1324 0 : fd_topo_link_t * sign_out = &topo->links[ tile->out_link_id[ SIGN_OUT_IDX ] ];
1325 0 : NONNULL( fd_keyguard_client_join( fd_keyguard_client_new( ctx->keyguard_client,
1326 0 : sign_out->mcache,
1327 0 : sign_out->dcache,
1328 0 : sign_in->mcache,
1329 0 : sign_in->dcache,
1330 0 : sign_out->mtu ) ) );
1331 :
1332 0 : ulong shred_limit = fd_ulong_if( tile->shred.larger_shred_limits_per_block, 32UL*32UL*1024UL, 32UL*1024UL );
1333 0 : fd_fec_set_t * resolver_sets = fec_sets + shred_store_mcache_depth + FD_SHRED_BATCH_FEC_SETS_MAX;
1334 0 : ctx->shredder = NONNULL( fd_shredder_join ( fd_shredder_new ( _shredder, fd_shred_signer, ctx->keyguard_client ) ) );
1335 0 : ctx->resolver = NONNULL( fd_fec_resolver_join ( fd_fec_resolver_new ( _resolver,
1336 0 : fd_shred_signer, ctx->keyguard_client,
1337 0 : tile->shred.fec_resolver_depth, 1UL,
1338 0 : shred_store_mcache_depth+1UL,
1339 0 : 128UL * tile->shred.fec_resolver_depth, resolver_sets,
1340 0 : shred_limit,
1341 0 : ctx->resolver_seed ) ) );
1342 :
1343 0 : if( FD_LIKELY( !!expected_shred_version ) ) {
1344 0 : fd_shredder_set_shred_version ( ctx->shredder, expected_shred_version );
1345 0 : fd_fec_resolver_set_shred_version( ctx->resolver, expected_shred_version );
1346 0 : }
1347 :
1348 0 : ctx->fec_sets = fec_sets;
1349 :
1350 0 : ctx->stake_ci = fd_stake_ci_join( fd_stake_ci_new( _stake_ci, ctx->identity_key ) );
1351 :
1352 0 : ctx->net_id = (ushort)0;
1353 :
1354 0 : fd_ip4_udp_hdr_init( ctx->data_shred_net_hdr, FD_SHRED_MIN_SZ, 0, tile->shred.shred_listen_port );
1355 0 : fd_ip4_udp_hdr_init( ctx->parity_shred_net_hdr, FD_SHRED_MAX_SZ, 0, tile->shred.shred_listen_port );
1356 :
1357 0 : ctx->adtl_dests_retransmit_cnt = tile->shred.adtl_dests_retransmit_cnt;
1358 0 : for( ulong i=0UL; i<ctx->adtl_dests_retransmit_cnt; i++) {
1359 0 : ctx->adtl_dests_retransmit[ i ].ip4 = tile->shred.adtl_dests_retransmit[ i ].ip;
1360 0 : ctx->adtl_dests_retransmit[ i ].port = tile->shred.adtl_dests_retransmit[ i ].port;
1361 0 : }
1362 0 : ctx->adtl_dests_leader_cnt = tile->shred.adtl_dests_leader_cnt;
1363 0 : for( ulong i=0UL; i<ctx->adtl_dests_leader_cnt; i++) {
1364 0 : ctx->adtl_dests_leader[i].ip4 = tile->shred.adtl_dests_leader[i].ip;
1365 0 : ctx->adtl_dests_leader[i].port = tile->shred.adtl_dests_leader[i].port;
1366 0 : }
1367 :
1368 0 : uchar has_contact_info_in = 0;
1369 0 : for( ulong i=0UL; i<tile->in_cnt; i++ ) {
1370 0 : fd_topo_link_t const * link = &topo->links[ tile->in_link_id[ i ] ];
1371 0 : fd_topo_wksp_t const * link_wksp = &topo->workspaces[ topo->objs[ link->dcache_obj_id ].wksp_id ];
1372 :
1373 0 : if( FD_LIKELY( !strcmp( link->name, "net_shred" ) ) ) {
1374 0 : ctx->in_kind[ i ] = IN_KIND_NET;
1375 0 : fd_net_rx_bounds_init( &ctx->in[ i ].net_rx, link->dcache );
1376 0 : continue; /* only net_rx needs to be set in this case. */
1377 0 : }
1378 0 : else if( FD_LIKELY( !strcmp( link->name, "poh_shred" ) ) ) ctx->in_kind[ i ] = IN_KIND_POH; /* Firedancer */
1379 0 : else if( FD_LIKELY( !strcmp( link->name, "pohh_shred" ) ) ) ctx->in_kind[ i ] = IN_KIND_POH; /* Frankendancer */
1380 0 : else if( FD_LIKELY( !strcmp( link->name, "stake_out" ) ) ) ctx->in_kind[ i ] = IN_KIND_STAKE; /* Frankendancer */
1381 0 : else if( FD_LIKELY( !strcmp( link->name, "replay_epoch" ) ) ) ctx->in_kind[ i ] = IN_KIND_EPOCH; /* Firedancer */
1382 0 : else if( FD_LIKELY( !strcmp( link->name, "sign_shred" ) ) ) ctx->in_kind[ i ] = IN_KIND_SIGN;
1383 0 : else if( FD_LIKELY( !strcmp( link->name, "ipecho_out" ) ) ) ctx->in_kind[ i ] = IN_KIND_IPECHO;
1384 0 : else if( FD_LIKELY( !strcmp( link->name, "tower_out" ) ) ) ctx->in_kind[ i ] = IN_KIND_ROOTED;
1385 0 : else if( FD_LIKELY( !strcmp( link->name, "replay_resol" ) ) ) ctx->in_kind[ i ] = IN_KIND_ROOTEDH;
1386 0 : else if( FD_LIKELY( !strcmp( link->name, "crds_shred" ) ) ) { ctx->in_kind[ i ] = IN_KIND_CONTACT;
1387 0 : if( FD_UNLIKELY( has_contact_info_in ) ) FD_LOG_ERR(( "shred tile has multiple contact info in link types, can only be either gossip_out or crds_shred" ));
1388 0 : has_contact_info_in = 1;
1389 0 : }
1390 0 : else if( FD_LIKELY( !strcmp( link->name, "gossip_out" ) ) ) { ctx->in_kind[ i ] = IN_KIND_GOSSIP;
1391 0 : if( FD_UNLIKELY( has_contact_info_in ) ) FD_LOG_ERR(( "shred tile has multiple contact info in link types, can only be either gossip_out or crds_shred" ));
1392 0 : has_contact_info_in = 1;
1393 0 : }
1394 :
1395 0 : else FD_LOG_ERR(( "shred tile has unexpected input link %lu %s", i, link->name ));
1396 :
1397 0 : if( FD_LIKELY( !!link->mtu ) ) {
1398 0 : ctx->in[ i ].mem = link_wksp->wksp;
1399 0 : ctx->in[ i ].chunk0 = fd_dcache_compact_chunk0( ctx->in[ i ].mem, link->dcache );
1400 0 : ctx->in[ i ].wmark = fd_dcache_compact_wmark ( ctx->in[ i ].mem, link->dcache, link->mtu );
1401 0 : }
1402 0 : }
1403 :
1404 0 : fd_topo_link_t * net_out = &topo->links[ tile->out_link_id[ NET_OUT_IDX ] ];
1405 :
1406 0 : ctx->net_out_chunk0 = fd_dcache_compact_chunk0( fd_wksp_containing( net_out->dcache ), net_out->dcache );
1407 0 : ctx->net_out_mem = topo->workspaces[ topo->objs[ net_out->dcache_obj_id ].wksp_id ].wksp;
1408 0 : ctx->net_out_wmark = fd_dcache_compact_wmark ( ctx->net_out_mem, net_out->dcache, net_out->mtu );
1409 0 : ctx->net_out_chunk = ctx->net_out_chunk0;
1410 :
1411 0 : ctx->store = NULL;
1412 0 : ulong store_obj_id = fd_pod_queryf_ulong( topo->props, ULONG_MAX, "store" );
1413 0 : if( FD_LIKELY( store_obj_id!=ULONG_MAX ) ) { /* firedancer-only */
1414 0 : ctx->store = fd_store_join( fd_topo_obj_laddr( topo, store_obj_id ) );
1415 0 : FD_TEST( ctx->store->magic==FD_STORE_MAGIC );
1416 0 : FD_TEST( ctx->store->part_cnt==ctx->round_robin_cnt ); /* single-writer (shred tile) per store part */
1417 0 : FD_TEST( !fd_store_verify( ctx->store ) );
1418 0 : }
1419 :
1420 0 : if( FD_LIKELY( ctx->shred_out_idx!=ULONG_MAX ) ) { /* firedancer-only */
1421 0 : fd_topo_link_t * shred_out = &topo->links[ tile->out_link_id[ ctx->shred_out_idx ] ];
1422 0 : ctx->shred_out_mem = topo->workspaces[ topo->objs[ shred_out->dcache_obj_id ].wksp_id ].wksp;
1423 0 : ctx->shred_out_chunk0 = fd_dcache_compact_chunk0( ctx->shred_out_mem, shred_out->dcache );
1424 0 : ctx->shred_out_wmark = fd_dcache_compact_wmark ( ctx->shred_out_mem, shred_out->dcache, shred_out->mtu );
1425 0 : ctx->shred_out_chunk = ctx->shred_out_chunk0;
1426 0 : FD_TEST( fd_dcache_compact_is_safe( ctx->shred_out_mem, shred_out->dcache, shred_out->mtu, shred_out->depth ) );
1427 0 : }
1428 :
1429 0 : if( FD_LIKELY( ctx->store_out_idx!=ULONG_MAX ) ) { /* frankendancer-only */
1430 0 : fd_topo_link_t * store_out = &topo->links[ tile->out_link_id[ ctx->store_out_idx ] ];
1431 0 : ctx->store_out_mem = topo->workspaces[ topo->objs[ store_out->dcache_obj_id ].wksp_id ].wksp;
1432 0 : ctx->store_out_chunk0 = fd_dcache_compact_chunk0( ctx->store_out_mem, store_out->dcache );
1433 0 : ctx->store_out_wmark = fd_dcache_compact_wmark ( ctx->store_out_mem, store_out->dcache, store_out->mtu );
1434 0 : ctx->store_out_chunk = ctx->store_out_chunk0;
1435 0 : FD_TEST( fd_dcache_compact_is_safe( ctx->store_out_mem, store_out->dcache, store_out->mtu, store_out->depth ) );
1436 0 : }
1437 :
1438 0 : ctx->poh_in_expect_seq = 0UL;
1439 :
1440 0 : ctx->shredder_fec_set_idx = 0UL;
1441 0 : ctx->shredder_max_fec_set_idx = shred_store_mcache_depth + FD_SHRED_BATCH_FEC_SETS_MAX;
1442 :
1443 0 : ctx->chained_merkle_root = NULL;
1444 0 : memset( ctx->out_merkle_roots, 0, sizeof(ctx->out_merkle_roots) );
1445 :
1446 0 : for( ulong i=0UL; i<FD_SHRED_BATCH_FEC_SETS_MAX; i++ ) { ctx->send_fec_set_idx[ i ] = ULONG_MAX; }
1447 0 : ctx->send_fec_set_cnt = 0UL;
1448 :
1449 0 : ctx->shred_buffer_sz = 0UL;
1450 0 : memset( ctx->shred_buffer, 0xFF, FD_NET_MTU );
1451 :
1452 0 : fd_histf_join( fd_histf_new( ctx->metrics->contact_info_cnt, FD_MHIST_MIN( SHRED, CLUSTER_CONTACT_INFO_CNT ),
1453 0 : FD_MHIST_MAX( SHRED, CLUSTER_CONTACT_INFO_CNT ) ) );
1454 0 : fd_histf_join( fd_histf_new( ctx->metrics->batch_sz, FD_MHIST_MIN( SHRED, BATCH_SZ ),
1455 0 : FD_MHIST_MAX( SHRED, BATCH_SZ ) ) );
1456 0 : fd_histf_join( fd_histf_new( ctx->metrics->batch_microblock_cnt, FD_MHIST_MIN( SHRED, BATCH_MICROBLOCK_CNT ),
1457 0 : FD_MHIST_MAX( SHRED, BATCH_MICROBLOCK_CNT ) ) );
1458 0 : fd_histf_join( fd_histf_new( ctx->metrics->shredding_timing, FD_MHIST_SECONDS_MIN( SHRED, SHREDDING_DURATION_SECONDS ),
1459 0 : FD_MHIST_SECONDS_MAX( SHRED, SHREDDING_DURATION_SECONDS ) ) );
1460 0 : fd_histf_join( fd_histf_new( ctx->metrics->add_shred_timing, FD_MHIST_SECONDS_MIN( SHRED, ADD_SHRED_DURATION_SECONDS ),
1461 0 : FD_MHIST_SECONDS_MAX( SHRED, ADD_SHRED_DURATION_SECONDS ) ) );
1462 0 : memset( ctx->metrics->shred_processing_result, '\0', sizeof(ctx->metrics->shred_processing_result) );
1463 0 : ctx->metrics->invalid_block_id_cnt = 0UL;
1464 0 : ctx->metrics->shred_rejected_unchained_cnt = 0UL;
1465 0 : ctx->metrics->repair_rcv_cnt = 0UL;
1466 0 : ctx->metrics->repair_rcv_bytes = 0UL;
1467 0 : ctx->metrics->turbine_rcv_cnt = 0UL;
1468 0 : ctx->metrics->turbine_rcv_bytes = 0UL;
1469 0 : ctx->metrics->bad_nonce = 0UL;
1470 :
1471 0 : ctx->pending_batch.microblock_cnt = 0UL;
1472 0 : ctx->pending_batch.txn_cnt = 0UL;
1473 0 : ctx->pending_batch.pos = 0UL;
1474 0 : ctx->pending_batch.slot = 0UL;
1475 0 : memset( ctx->pending_batch.payload, 0, sizeof(ctx->pending_batch.payload) );
1476 :
1477 0 : memset( ctx->epoch_schedule, 0, sizeof(ctx->epoch_schedule) );
1478 0 : for( ulong i=0UL; i<FD_SHRED_FEATURES_ACTIVATION_SLOT_CNT; i++ ) {
1479 0 : ctx->features_activation->slots[i] = FD_SHRED_FEATURES_ACTIVATION_SLOT_DISABLED;
1480 0 : }
1481 :
1482 0 : ulong scratch_top = FD_SCRATCH_ALLOC_FINI( l, 1UL );
1483 0 : if( FD_UNLIKELY( scratch_top > (ulong)scratch + scratch_footprint( tile ) ) )
1484 0 : FD_LOG_ERR(( "scratch overflow %lu %lu %lu", scratch_top - (ulong)scratch - scratch_footprint( tile ), scratch_top, (ulong)scratch + scratch_footprint( tile ) ));
1485 :
1486 0 : memset( ctx->block_ids, 0, sizeof(ctx->block_ids) );
1487 0 : }
1488 :
1489 : static ulong
1490 : populate_allowed_seccomp( fd_topo_t const * topo,
1491 : fd_topo_tile_t const * tile,
1492 : ulong out_cnt,
1493 0 : struct sock_filter * out ) {
1494 0 : (void)topo;
1495 0 : (void)tile;
1496 :
1497 0 : populate_sock_filter_policy_fd_shred_tile( out_cnt, out, (uint)fd_log_private_logfile_fd() );
1498 0 : return sock_filter_policy_fd_shred_tile_instr_cnt;
1499 0 : }
1500 :
1501 : static ulong
1502 : populate_allowed_fds( fd_topo_t const * topo,
1503 : fd_topo_tile_t const * tile,
1504 : ulong out_fds_cnt,
1505 0 : int * out_fds ) {
1506 0 : (void)topo;
1507 0 : (void)tile;
1508 :
1509 0 : if( FD_UNLIKELY( out_fds_cnt<2UL ) ) FD_LOG_ERR(( "out_fds_cnt %lu", out_fds_cnt ));
1510 :
1511 0 : ulong out_cnt = 0UL;
1512 0 : out_fds[ out_cnt++ ] = 2; /* stderr */
1513 0 : if( FD_LIKELY( -1!=fd_log_private_logfile_fd() ) )
1514 0 : out_fds[ out_cnt++ ] = fd_log_private_logfile_fd(); /* logfile */
1515 0 : return out_cnt;
1516 0 : }
1517 :
1518 : /* Excluding net_out (where the link is unreliable), STEM_BURST needs
1519 : to guarantee enough credits for the worst case. There are 4 cases
1520 : to consider: (IN_KIND_NET/IN_KIND_POH) x (Frankendancer/Firedancer)
1521 : In the IN_KIND_NET case: (Frankendancer) sends 1 frag to
1522 : store; (Firedancer) that is one frag for the shred to repair, and
1523 : then another frag to repair for the FEC set.
1524 : In the IN_KIND_POH case: (Frankendancer) there might be
1525 : FD_SHRED_BATCH_FEC_SETS_MAX FEC sets; (Firedancer) that is
1526 : FD_SHRED_BATCH_FEC_SETS_MAX frags to repair (one per FEC set).
1527 : Therefore, the worst case is IN_KIND_POH for Frankendancer. */
1528 0 : #define STEM_BURST (FD_SHRED_BATCH_FEC_SETS_MAX)
1529 :
1530 : /* See explanation in fd_pack */
1531 0 : #define STEM_LAZY (128L*3000L)
1532 :
1533 0 : #define STEM_CALLBACK_CONTEXT_TYPE fd_shred_ctx_t
1534 0 : #define STEM_CALLBACK_CONTEXT_ALIGN alignof(fd_shred_ctx_t)
1535 :
1536 0 : #define STEM_CALLBACK_DURING_HOUSEKEEPING during_housekeeping
1537 0 : #define STEM_CALLBACK_METRICS_WRITE metrics_write
1538 0 : #define STEM_CALLBACK_BEFORE_FRAG before_frag
1539 0 : #define STEM_CALLBACK_DURING_FRAG during_frag
1540 0 : #define STEM_CALLBACK_AFTER_FRAG after_frag
1541 :
1542 : #include "../stem/fd_stem.c"
1543 :
1544 : fd_topo_run_tile_t fd_tile_shred = {
1545 : .name = "shred",
1546 : .populate_allowed_seccomp = populate_allowed_seccomp,
1547 : .populate_allowed_fds = populate_allowed_fds,
1548 : .scratch_align = scratch_align,
1549 : .scratch_footprint = scratch_footprint,
1550 : .privileged_init = privileged_init,
1551 : .unprivileged_init = unprivileged_init,
1552 : .run = stem_run,
1553 : };
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