Line data Source code
1 : #include "fd_runtime.h"
2 : #include "../capture/fd_capture_ctx.h"
3 : #include "../types/fd_cast.h"
4 : #include "fd_acc_mgr.h"
5 : #include "fd_alut_interp.h"
6 : #include "fd_bank.h"
7 : #include "fd_executor_err.h"
8 : #include "fd_hashes.h"
9 : #include "fd_runtime_err.h"
10 : #include "fd_runtime_stack.h"
11 : #include "fd_genesis_parse.h"
12 :
13 : #include "fd_executor.h"
14 : #include "fd_txn_account.h"
15 : #include "sysvar/fd_sysvar_cache.h"
16 : #include "sysvar/fd_sysvar_clock.h"
17 : #include "sysvar/fd_sysvar_epoch_schedule.h"
18 : #include "sysvar/fd_sysvar_recent_hashes.h"
19 : #include "sysvar/fd_sysvar_stake_history.h"
20 :
21 : #include "../stakes/fd_stakes.h"
22 : #include "../rewards/fd_rewards.h"
23 : #include "../accdb/fd_accdb_impl_v1.h"
24 : #include "../progcache/fd_progcache_user.h"
25 :
26 : #include "program/fd_stake_program.h"
27 : #include "program/fd_builtin_programs.h"
28 : #include "program/fd_program_util.h"
29 :
30 : #include "sysvar/fd_sysvar_clock.h"
31 : #include "sysvar/fd_sysvar_last_restart_slot.h"
32 : #include "sysvar/fd_sysvar_recent_hashes.h"
33 : #include "sysvar/fd_sysvar_rent.h"
34 : #include "sysvar/fd_sysvar_slot_hashes.h"
35 : #include "sysvar/fd_sysvar_slot_history.h"
36 :
37 : #include "tests/fd_dump_pb.h"
38 :
39 : #include "fd_system_ids.h"
40 :
41 : #include "../../disco/pack/fd_pack.h"
42 : #include "../../disco/pack/fd_pack_tip_prog_blacklist.h"
43 :
44 : #include <unistd.h>
45 : #include <sys/stat.h>
46 : #include <sys/types.h>
47 : #include <fcntl.h>
48 :
49 : /******************************************************************************/
50 : /* Public Runtime Helpers */
51 : /******************************************************************************/
52 :
53 :
54 : /*
55 : https://github.com/anza-xyz/agave/blob/v2.1.1/runtime/src/bank.rs#L1254-L1258
56 : https://github.com/anza-xyz/agave/blob/v2.1.1/runtime/src/bank.rs#L1749
57 : */
58 : int
59 : fd_runtime_compute_max_tick_height( ulong ticks_per_slot,
60 : ulong slot,
61 0 : ulong * out_max_tick_height /* out */ ) {
62 0 : ulong max_tick_height = 0UL;
63 0 : if( FD_LIKELY( ticks_per_slot > 0UL ) ) {
64 0 : ulong next_slot = fd_ulong_sat_add( slot, 1UL );
65 0 : if( FD_UNLIKELY( next_slot == slot ) ) {
66 0 : FD_LOG_WARNING(( "max tick height addition overflowed slot %lu ticks_per_slot %lu", slot, ticks_per_slot ));
67 0 : return -1;
68 0 : }
69 0 : if( FD_UNLIKELY( ULONG_MAX / ticks_per_slot < next_slot ) ) {
70 0 : FD_LOG_WARNING(( "max tick height multiplication overflowed slot %lu ticks_per_slot %lu", slot, ticks_per_slot ));
71 0 : return -1;
72 0 : }
73 0 : max_tick_height = fd_ulong_sat_mul( next_slot, ticks_per_slot );
74 0 : }
75 0 : *out_max_tick_height = max_tick_height;
76 0 : return FD_RUNTIME_EXECUTE_SUCCESS;
77 0 : }
78 :
79 : /* Returns whether the specified epoch should use the new vote account
80 : keyed leader schedule (returns 1) or the old validator identity keyed
81 : leader schedule (returns 0). See SIMD-0180. This is the analogous to
82 : Agave's Bank::should_use_vote_keyed_leader_schedule():
83 : https://github.com/anza-xyz/agave/blob/v2.3.1/runtime/src/bank.rs#L6148 */
84 :
85 : static int
86 0 : fd_runtime_should_use_vote_keyed_leader_schedule( fd_bank_t * bank ) {
87 : /* Agave uses an option type for their effective_epoch value. We
88 : represent None as ULONG_MAX and Some(value) as the value.
89 : https://github.com/anza-xyz/agave/blob/v2.3.1/runtime/src/bank.rs#L6149-L6165 */
90 0 : if( FD_FEATURE_ACTIVE_BANK( bank, enable_vote_address_leader_schedule ) ) {
91 : /* Return the first epoch if activated at genesis
92 : https://github.com/anza-xyz/agave/blob/v2.3.1/runtime/src/bank.rs#L6153-L6157 */
93 0 : ulong activation_slot = fd_bank_features_query( bank )->enable_vote_address_leader_schedule;
94 0 : if( activation_slot==0UL ) return 1; /* effective_epoch=0, current_epoch >= effective_epoch always true */
95 :
96 : /* Calculate the epoch that the feature became activated in
97 : https://github.com/anza-xyz/agave/blob/v2.3.1/runtime/src/bank.rs#L6159-L6160 */
98 0 : fd_epoch_schedule_t const * epoch_schedule = fd_bank_epoch_schedule_query( bank );
99 0 : ulong activation_epoch = fd_slot_to_epoch( epoch_schedule, activation_slot, NULL );
100 :
101 : /* The effective epoch is the epoch immediately after the activation
102 : epoch.
103 : https://github.com/anza-xyz/agave/blob/v2.3.1/runtime/src/bank.rs#L6162-L6164 */
104 0 : ulong effective_epoch = activation_epoch + 1UL;
105 0 : ulong current_epoch = fd_bank_epoch_get( bank );
106 :
107 : /* https://github.com/anza-xyz/agave/blob/v2.3.1/runtime/src/bank.rs#L6167-L6170 */
108 0 : return !!( current_epoch >= effective_epoch );
109 0 : }
110 :
111 : /* ...The rest of the logic in this function either returns None or
112 : Some(false) so we will just return 0 by default. */
113 0 : return 0;
114 0 : }
115 :
116 : void
117 : fd_runtime_update_leaders( fd_bank_t * bank,
118 9 : fd_runtime_stack_t * runtime_stack ) {
119 :
120 9 : fd_epoch_schedule_t const * epoch_schedule = fd_bank_epoch_schedule_query( bank );
121 :
122 9 : ulong epoch = fd_slot_to_epoch ( epoch_schedule, fd_bank_slot_get( bank ), NULL );
123 9 : ulong slot0 = fd_epoch_slot0 ( epoch_schedule, epoch );
124 9 : ulong slot_cnt = fd_epoch_slot_cnt( epoch_schedule, epoch );
125 :
126 9 : fd_vote_states_t const * vote_states_prev_prev = fd_bank_vote_states_prev_prev_locking_query( bank );
127 9 : fd_vote_stake_weight_t * epoch_weights = runtime_stack->stakes.stake_weights;
128 9 : ulong stake_weight_cnt = fd_stake_weights_by_node( vote_states_prev_prev, epoch_weights );
129 9 : fd_bank_vote_states_prev_prev_end_locking_query( bank );
130 :
131 : /* Derive leader schedule */
132 :
133 9 : ulong epoch_leaders_footprint = fd_epoch_leaders_footprint( stake_weight_cnt, slot_cnt );
134 9 : if( FD_LIKELY( epoch_leaders_footprint ) ) {
135 0 : if( FD_UNLIKELY( stake_weight_cnt>MAX_PUB_CNT ) ) {
136 0 : FD_LOG_ERR(( "Stake weight count exceeded max" ));
137 0 : }
138 0 : if( FD_UNLIKELY( slot_cnt>MAX_SLOTS_PER_EPOCH ) ) {
139 0 : FD_LOG_ERR(( "Slot count exceeeded max" ));
140 0 : }
141 :
142 0 : ulong vote_keyed_lsched = (ulong)fd_runtime_should_use_vote_keyed_leader_schedule( bank );
143 0 : void * epoch_leaders_mem = fd_bank_epoch_leaders_locking_modify( bank );
144 0 : fd_epoch_leaders_t * leaders = fd_epoch_leaders_join( fd_epoch_leaders_new(
145 0 : epoch_leaders_mem,
146 0 : epoch,
147 0 : slot0,
148 0 : slot_cnt,
149 0 : stake_weight_cnt,
150 0 : epoch_weights,
151 0 : 0UL,
152 0 : vote_keyed_lsched ) );
153 0 : if( FD_UNLIKELY( !leaders ) ) {
154 0 : FD_LOG_ERR(( "Unable to init and join fd_epoch_leaders" ));
155 0 : }
156 0 : fd_bank_epoch_leaders_end_locking_modify( bank );
157 0 : }
158 9 : }
159 :
160 : /******************************************************************************/
161 : /* Various Private Runtime Helpers */
162 : /******************************************************************************/
163 :
164 : /* fee to be deposited should be > 0
165 : Returns 0 if validation succeeds
166 : Returns the amount to burn(==fee) on failure */
167 : static ulong
168 : fd_runtime_validate_fee_collector( fd_bank_t * bank,
169 : fd_txn_account_t const * collector,
170 0 : ulong fee ) {
171 0 : if( FD_UNLIKELY( fee<=0UL ) ) {
172 0 : FD_LOG_ERR(( "expected fee(%lu) to be >0UL", fee ));
173 0 : }
174 :
175 0 : if( FD_UNLIKELY( memcmp( fd_txn_account_get_owner( collector ), fd_solana_system_program_id.key, sizeof(fd_pubkey_t) ) ) ) {
176 0 : FD_BASE58_ENCODE_32_BYTES( collector->pubkey->key, _out_key );
177 0 : FD_LOG_WARNING(( "cannot pay a non-system-program owned account (%s)", _out_key ));
178 0 : return fee;
179 0 : }
180 :
181 : /* https://github.com/anza-xyz/agave/blob/v1.18.23/runtime/src/bank/fee_distribution.rs#L111
182 : https://github.com/anza-xyz/agave/blob/v1.18.23/runtime/src/accounts/account_rent_state.rs#L39
183 : In agave's fee deposit code, rent state transition check logic is as follows:
184 : The transition is NOT allowed iff
185 : === BEGIN
186 : the post deposit account is rent paying AND the pre deposit account is not rent paying
187 : OR
188 : the post deposit account is rent paying AND the pre deposit account is rent paying AND !(post_data_size == pre_data_size && post_lamports <= pre_lamports)
189 : === END
190 : post_data_size == pre_data_size is always true during fee deposit.
191 : However, post_lamports > pre_lamports because we are paying a >0 amount.
192 : So, the above reduces down to
193 : === BEGIN
194 : the post deposit account is rent paying AND the pre deposit account is not rent paying
195 : OR
196 : the post deposit account is rent paying AND the pre deposit account is rent paying AND TRUE
197 : === END
198 : This is equivalent to checking that the post deposit account is rent paying.
199 : An account is rent paying if the post deposit balance is >0 AND it's not rent exempt.
200 : We already know that the post deposit balance is >0 because we are paying a >0 amount.
201 : So TLDR we just check if the account is rent exempt.
202 : */
203 0 : fd_rent_t const * rent = fd_bank_rent_query( bank );
204 0 : ulong minbal = fd_rent_exempt_minimum_balance( rent, fd_txn_account_get_data_len( collector ) );
205 0 : if( FD_UNLIKELY( fd_txn_account_get_lamports( collector )+fee<minbal ) ) {
206 0 : FD_BASE58_ENCODE_32_BYTES( collector->pubkey->key, _out_key );
207 0 : FD_LOG_WARNING(("cannot pay a rent paying account (%s)", _out_key ));
208 0 : return fee;
209 0 : }
210 :
211 0 : return 0UL;
212 0 : }
213 :
214 : static int
215 : fd_runtime_run_incinerator( fd_bank_t * bank,
216 : fd_accdb_user_t * accdb,
217 : fd_funk_txn_xid_t const * xid,
218 0 : fd_capture_ctx_t * capture_ctx ) {
219 0 : fd_txn_account_t rec[1];
220 0 : fd_funk_rec_prepare_t prepare = {0};
221 :
222 0 : int ok = !!fd_txn_account_init_from_funk_mutable(
223 0 : rec,
224 0 : &fd_sysvar_incinerator_id,
225 0 : accdb,
226 0 : xid,
227 0 : 0,
228 0 : 0UL,
229 0 : &prepare );
230 0 : if( FD_UNLIKELY( !ok ) ) {
231 : // TODO: not really an error! This is fine!
232 0 : return -1;
233 0 : }
234 :
235 0 : fd_lthash_value_t prev_hash[1];
236 0 : fd_hashes_account_lthash( rec->pubkey, fd_txn_account_get_meta( rec ), fd_txn_account_get_data( rec ), prev_hash );
237 :
238 0 : ulong new_capitalization = fd_ulong_sat_sub( fd_bank_capitalization_get( bank ), fd_txn_account_get_lamports( rec ) );
239 0 : fd_bank_capitalization_set( bank, new_capitalization );
240 :
241 0 : fd_txn_account_set_lamports( rec, 0UL );
242 0 : fd_hashes_update_lthash( rec->pubkey, rec->meta, prev_hash, bank, capture_ctx );
243 0 : fd_txn_account_mutable_fini( rec, accdb, &prepare );
244 :
245 0 : return 0;
246 0 : }
247 :
248 : static void
249 : fd_runtime_freeze( fd_bank_t * bank,
250 : fd_accdb_user_t * accdb,
251 0 : fd_capture_ctx_t * capture_ctx ) {
252 :
253 0 : fd_funk_txn_xid_t const xid = { .ul = { fd_bank_slot_get( bank ), bank->idx } };
254 :
255 0 : if( FD_LIKELY( fd_bank_slot_get( bank ) != 0UL ) ) {
256 0 : fd_sysvar_recent_hashes_update( bank, accdb, &xid, capture_ctx );
257 0 : }
258 :
259 0 : fd_sysvar_slot_history_update( bank, accdb, &xid, capture_ctx );
260 :
261 0 : ulong execution_fees = fd_bank_execution_fees_get( bank );
262 0 : ulong priority_fees = fd_bank_priority_fees_get( bank );
263 :
264 0 : ulong burn = execution_fees / 2;
265 0 : ulong fees = fd_ulong_sat_add( priority_fees, execution_fees - burn );
266 :
267 0 : if( FD_LIKELY( fees ) ) {
268 : // Look at collect_fees... I think this was where I saw the fee payout..
269 0 : fd_txn_account_t rec[1];
270 :
271 0 : do {
272 : /* do_create=1 because we might wanna pay fees to a leader
273 : account that we've purged due to 0 balance. */
274 :
275 0 : fd_epoch_leaders_t const * leaders = fd_bank_epoch_leaders_locking_query( bank );
276 0 : if( FD_UNLIKELY( !leaders ) ) {
277 0 : FD_LOG_CRIT(( "fd_runtime_freeze: leaders not found" ));
278 0 : fd_bank_epoch_leaders_end_locking_query( bank );
279 0 : break;
280 0 : }
281 :
282 0 : fd_pubkey_t const * leader = fd_epoch_leaders_get( leaders, fd_bank_slot_get( bank ) );
283 0 : if( FD_UNLIKELY( !leader ) ) {
284 0 : FD_LOG_CRIT(( "fd_runtime_freeze: leader not found" ));
285 0 : fd_bank_epoch_leaders_end_locking_query( bank );
286 0 : break;
287 0 : }
288 :
289 0 : fd_funk_rec_prepare_t prepare = {0};
290 0 : int ok = !!fd_txn_account_init_from_funk_mutable(
291 0 : rec,
292 0 : leader,
293 0 : accdb,
294 0 : &xid,
295 0 : 1,
296 0 : 0UL,
297 0 : &prepare );
298 0 : if( FD_UNLIKELY( !ok ) ) {
299 0 : FD_BASE58_ENCODE_32_BYTES( leader->uc, leader_b58 );
300 0 : FD_LOG_WARNING(( "fd_runtime_freeze: fd_txn_account_init_from_funk_mutable for leader (%s) failed", leader_b58 ));
301 0 : burn = fd_ulong_sat_add( burn, fees );
302 0 : fd_bank_epoch_leaders_end_locking_query( bank );
303 0 : break;
304 0 : }
305 :
306 0 : fd_lthash_value_t prev_hash[1];
307 0 : fd_hashes_account_lthash( leader, fd_txn_account_get_meta( rec ), fd_txn_account_get_data( rec ), prev_hash );
308 :
309 0 : fd_bank_epoch_leaders_end_locking_query( bank );
310 :
311 0 : if ( FD_LIKELY( FD_FEATURE_ACTIVE_BANK( bank, validate_fee_collector_account ) ) ) {
312 0 : ulong _burn;
313 0 : if( FD_UNLIKELY( _burn=fd_runtime_validate_fee_collector( bank, rec, fees ) ) ) {
314 0 : if( FD_UNLIKELY( _burn!=fees ) ) {
315 0 : FD_LOG_ERR(( "expected _burn(%lu)==fees(%lu)", _burn, fees ));
316 0 : }
317 0 : burn = fd_ulong_sat_add( burn, fees );
318 0 : FD_LOG_WARNING(("fd_runtime_freeze: burned %lu", fees ));
319 0 : break;
320 0 : }
321 0 : }
322 :
323 : /* TODO: is it ok to not check the overflow error here? */
324 0 : fd_txn_account_checked_add_lamports( rec, fees );
325 0 : fd_txn_account_set_slot( rec, fd_bank_slot_get( bank ) );
326 :
327 0 : fd_hashes_update_lthash( rec->pubkey, rec->meta, prev_hash, bank, capture_ctx );
328 0 : fd_txn_account_mutable_fini( rec, accdb, &prepare );
329 :
330 0 : } while(0);
331 :
332 0 : ulong old = fd_bank_capitalization_get( bank );
333 0 : fd_bank_capitalization_set( bank, fd_ulong_sat_sub( old, burn ) );
334 0 : FD_LOG_DEBUG(( "fd_runtime_freeze: burn %lu, capitalization %lu->%lu ", burn, old, fd_bank_capitalization_get( bank ) ));
335 0 : }
336 :
337 : /* jito collects a 3% fee at the end of the block + 3% fee at
338 : distribution time. */
339 0 : fd_bank_tips_set( bank, (fd_bank_tips_get( bank ) * 6UL / 100UL) );
340 :
341 0 : fd_runtime_run_incinerator( bank, accdb, &xid, capture_ctx );
342 :
343 0 : }
344 :
345 : /******************************************************************************/
346 : /* Block-Level Execution Preparation/Finalization */
347 : /******************************************************************************/
348 : void
349 : fd_runtime_new_fee_rate_governor_derived( fd_bank_t * bank,
350 27 : ulong latest_signatures_per_slot ) {
351 :
352 27 : fd_fee_rate_governor_t const * base_fee_rate_governor = fd_bank_fee_rate_governor_query( bank );
353 :
354 27 : ulong old_lamports_per_signature = fd_bank_rbh_lamports_per_sig_get( bank );
355 :
356 27 : fd_fee_rate_governor_t me = {
357 27 : .target_signatures_per_slot = base_fee_rate_governor->target_signatures_per_slot,
358 27 : .target_lamports_per_signature = base_fee_rate_governor->target_lamports_per_signature,
359 27 : .max_lamports_per_signature = base_fee_rate_governor->max_lamports_per_signature,
360 27 : .min_lamports_per_signature = base_fee_rate_governor->min_lamports_per_signature,
361 27 : .burn_percent = base_fee_rate_governor->burn_percent
362 27 : };
363 :
364 27 : ulong new_lamports_per_signature = 0;
365 27 : if( me.target_signatures_per_slot > 0 ) {
366 0 : me.min_lamports_per_signature = fd_ulong_max( 1UL, (ulong)(me.target_lamports_per_signature / 2) );
367 0 : me.max_lamports_per_signature = me.target_lamports_per_signature * 10;
368 0 : ulong desired_lamports_per_signature = fd_ulong_min(
369 0 : me.max_lamports_per_signature,
370 0 : fd_ulong_max(
371 0 : me.min_lamports_per_signature,
372 0 : me.target_lamports_per_signature
373 0 : * fd_ulong_min(latest_signatures_per_slot, (ulong)UINT_MAX)
374 0 : / me.target_signatures_per_slot
375 0 : )
376 0 : );
377 0 : long gap = (long)desired_lamports_per_signature - (long)old_lamports_per_signature;
378 0 : if ( gap == 0 ) {
379 0 : new_lamports_per_signature = desired_lamports_per_signature;
380 0 : } else {
381 0 : long gap_adjust = (long)(fd_ulong_max( 1UL, (ulong)(me.target_lamports_per_signature / 20) ))
382 0 : * (gap != 0)
383 0 : * (gap > 0 ? 1 : -1);
384 0 : new_lamports_per_signature = fd_ulong_min(
385 0 : me.max_lamports_per_signature,
386 0 : fd_ulong_max(
387 0 : me.min_lamports_per_signature,
388 0 : (ulong)((long)old_lamports_per_signature + gap_adjust)
389 0 : )
390 0 : );
391 0 : }
392 27 : } else {
393 27 : new_lamports_per_signature = base_fee_rate_governor->target_lamports_per_signature;
394 27 : me.min_lamports_per_signature = me.target_lamports_per_signature;
395 27 : me.max_lamports_per_signature = me.target_lamports_per_signature;
396 27 : }
397 27 : fd_bank_fee_rate_governor_set( bank, me );
398 27 : fd_bank_rbh_lamports_per_sig_set( bank, new_lamports_per_signature );
399 27 : }
400 :
401 : /******************************************************************************/
402 : /* Epoch Boundary */
403 : /******************************************************************************/
404 :
405 : static void
406 9 : fd_runtime_refresh_previous_stake_values( fd_bank_t * bank ) {
407 9 : fd_vote_states_t * vote_states = fd_bank_vote_states_locking_modify( bank );
408 9 : fd_vote_states_iter_t iter_[1];
409 9 : for( fd_vote_states_iter_t * iter = fd_vote_states_iter_init( iter_, vote_states );
410 9 : !fd_vote_states_iter_done( iter );
411 9 : fd_vote_states_iter_next( iter ) ) {
412 0 : fd_vote_state_ele_t * vote_state = fd_vote_states_iter_ele( iter );
413 0 : vote_state->stake_t_2 = vote_state->stake_t_1;
414 0 : vote_state->stake_t_1 = vote_state->stake;
415 0 : }
416 9 : fd_bank_vote_states_end_locking_modify( bank );
417 9 : }
418 :
419 : /* Replace the vote states for T-2 (vote_states_prev_prev) with the vote
420 : states for T-1 (vote_states_prev) */
421 :
422 : static void
423 9 : fd_runtime_update_vote_states_prev_prev( fd_bank_t * bank ) {
424 :
425 9 : fd_vote_states_t * vote_states_prev_prev = fd_bank_vote_states_prev_prev_locking_modify( bank );
426 9 : fd_vote_states_t const * vote_states_prev = fd_bank_vote_states_prev_locking_query( bank );
427 9 : fd_memcpy( vote_states_prev_prev, vote_states_prev, fd_bank_vote_states_footprint );
428 9 : fd_bank_vote_states_prev_prev_end_locking_modify( bank );
429 9 : fd_bank_vote_states_prev_end_locking_query( bank );
430 9 : }
431 :
432 : /* Replace the vote states for T-1 (vote_states_prev) with the vote
433 : states for T-1 (vote_states) */
434 :
435 : static void
436 9 : fd_runtime_update_vote_states_prev( fd_bank_t * bank ) {
437 9 : fd_vote_states_t * vote_states_prev = fd_bank_vote_states_prev_locking_modify( bank );
438 9 : fd_vote_states_t const * vote_states = fd_bank_vote_states_locking_query( bank );
439 9 : fd_memcpy( vote_states_prev, vote_states, fd_bank_vote_states_footprint );
440 9 : fd_bank_vote_states_prev_end_locking_modify( bank );
441 9 : fd_bank_vote_states_end_locking_query( bank );
442 9 : }
443 :
444 : /* https://github.com/anza-xyz/agave/blob/v2.1.0/runtime/src/bank.rs#L6704 */
445 : static void
446 : fd_apply_builtin_program_feature_transitions( fd_bank_t * bank,
447 : fd_accdb_user_t * accdb,
448 : fd_funk_txn_xid_t const * xid,
449 : fd_runtime_stack_t * runtime_stack,
450 9 : fd_capture_ctx_t * capture_ctx ) {
451 : /* TODO: Set the upgrade authority properly from the core bpf migration config. Right now it's set to None.
452 :
453 : Migrate any necessary stateless builtins to core BPF. So far,
454 : the only "stateless" builtin is the Feature program. Beginning
455 : checks in the migrate_builtin_to_core_bpf function will fail if the
456 : program has already been migrated to BPF. */
457 :
458 9 : fd_builtin_program_t const * builtins = fd_builtins();
459 117 : for( ulong i=0UL; i<fd_num_builtins(); i++ ) {
460 : /* https://github.com/anza-xyz/agave/blob/v2.1.0/runtime/src/bank.rs#L6732-L6751 */
461 108 : if( builtins[i].core_bpf_migration_config && FD_FEATURE_ACTIVE_OFFSET( fd_bank_slot_get( bank ), fd_bank_features_query( bank ), builtins[i].core_bpf_migration_config->enable_feature_offset ) ) {
462 0 : FD_BASE58_ENCODE_32_BYTES( builtins[i].pubkey->key, pubkey_b58 );
463 0 : FD_LOG_DEBUG(( "Migrating builtin program %s to core BPF", pubkey_b58 ));
464 0 : fd_migrate_builtin_to_core_bpf( bank, accdb, xid, runtime_stack, builtins[i].core_bpf_migration_config, capture_ctx );
465 0 : }
466 : /* https://github.com/anza-xyz/agave/blob/v2.1.0/runtime/src/bank.rs#L6753-L6774 */
467 108 : if( builtins[i].enable_feature_offset!=NO_ENABLE_FEATURE_ID && FD_FEATURE_JUST_ACTIVATED_OFFSET( bank, builtins[i].enable_feature_offset ) ) {
468 0 : FD_BASE58_ENCODE_32_BYTES( builtins[i].pubkey->key, pubkey_b58 );
469 0 : FD_LOG_DEBUG(( "Enabling builtin program %s", pubkey_b58 ));
470 0 : fd_write_builtin_account( bank, accdb, xid, capture_ctx, *builtins[i].pubkey, builtins[i].data,strlen(builtins[i].data) );
471 0 : }
472 108 : }
473 :
474 : /* https://github.com/anza-xyz/agave/blob/v2.1.0/runtime/src/bank.rs#L6776-L6793 */
475 9 : fd_stateless_builtin_program_t const * stateless_builtins = fd_stateless_builtins();
476 27 : for( ulong i=0UL; i<fd_num_stateless_builtins(); i++ ) {
477 18 : if( stateless_builtins[i].core_bpf_migration_config && FD_FEATURE_ACTIVE_OFFSET( fd_bank_slot_get( bank ), fd_bank_features_query( bank ), stateless_builtins[i].core_bpf_migration_config->enable_feature_offset ) ) {
478 0 : FD_BASE58_ENCODE_32_BYTES( stateless_builtins[i].pubkey->key, pubkey_b58 );
479 0 : FD_LOG_DEBUG(( "Migrating stateless builtin program %s to core BPF", pubkey_b58 ));
480 0 : fd_migrate_builtin_to_core_bpf( bank, accdb, xid, runtime_stack, stateless_builtins[i].core_bpf_migration_config, capture_ctx );
481 0 : }
482 18 : }
483 :
484 : /* https://github.com/anza-xyz/agave/blob/c1080de464cfb578c301e975f498964b5d5313db/runtime/src/bank.rs#L6795-L6805 */
485 9 : fd_precompile_program_t const * precompiles = fd_precompiles();
486 36 : for( ulong i=0UL; i<fd_num_precompiles(); i++ ) {
487 27 : if( precompiles[i].feature_offset != NO_ENABLE_FEATURE_ID && FD_FEATURE_JUST_ACTIVATED_OFFSET( bank, precompiles[i].feature_offset ) ) {
488 0 : fd_write_builtin_account( bank, accdb, xid, capture_ctx, *precompiles[i].pubkey, "", 0 );
489 0 : }
490 27 : }
491 9 : }
492 :
493 : static void
494 : fd_feature_activate( fd_bank_t * bank,
495 : fd_accdb_user_t * accdb,
496 : fd_funk_txn_xid_t const * xid,
497 : fd_capture_ctx_t * capture_ctx,
498 : fd_feature_id_t const * id,
499 2277 : fd_pubkey_t const * addr ) {
500 2277 : fd_features_t * features = fd_bank_features_modify( bank );
501 :
502 2277 : if( id->reverted==1 ) return;
503 :
504 2187 : fd_funk_t * funk = fd_accdb_user_v1_funk( accdb );
505 2187 : fd_txn_account_t acct_rec[1];
506 2187 : int err = fd_txn_account_init_from_funk_readonly( acct_rec, addr, funk, xid );
507 2187 : if( FD_UNLIKELY( err != FD_ACC_MGR_SUCCESS ) ) {
508 2187 : return;
509 2187 : }
510 :
511 0 : FD_BASE58_ENCODE_32_BYTES( addr->uc, addr_b58 );
512 0 : fd_feature_t feature[1];
513 0 : int decode_err = 0;
514 0 : if( FD_UNLIKELY( !fd_bincode_decode_static( feature, feature, fd_txn_account_get_data( acct_rec ), fd_txn_account_get_data_len( acct_rec ), &decode_err ) ) ) {
515 0 : FD_LOG_WARNING(( "Failed to decode feature account %s (%d)", addr_b58, decode_err ));
516 0 : return;
517 0 : }
518 :
519 0 : if( feature->has_activated_at ) {
520 0 : FD_LOG_DEBUG(( "feature already activated - acc: %s, slot: %lu", addr_b58, feature->activated_at ));
521 0 : fd_features_set( features, id, feature->activated_at);
522 0 : } else {
523 0 : FD_LOG_DEBUG(( "Feature %s not activated at %lu, activating", addr_b58, feature->activated_at ));
524 :
525 0 : fd_txn_account_t modify_acct_rec[1];
526 0 : fd_funk_rec_prepare_t modify_acct_prepare = {0};
527 0 : int ok = !!fd_txn_account_init_from_funk_mutable( modify_acct_rec, addr, accdb, xid, 0, 0UL, &modify_acct_prepare );
528 0 : if( FD_UNLIKELY( !ok ) ) return;
529 :
530 0 : fd_lthash_value_t prev_hash[1];
531 0 : fd_hashes_account_lthash(
532 0 : addr,
533 0 : fd_txn_account_get_meta( modify_acct_rec ),
534 0 : fd_txn_account_get_data( modify_acct_rec ),
535 0 : prev_hash );
536 :
537 0 : feature->has_activated_at = 1;
538 0 : feature->activated_at = fd_bank_slot_get( bank );
539 0 : fd_bincode_encode_ctx_t encode_ctx = {
540 0 : .data = fd_txn_account_get_data_mut( modify_acct_rec ),
541 0 : .dataend = fd_txn_account_get_data_mut( modify_acct_rec ) + fd_txn_account_get_data_len( modify_acct_rec ),
542 0 : };
543 0 : int encode_err = fd_feature_encode( feature, &encode_ctx );
544 0 : if( FD_UNLIKELY( encode_err != FD_BINCODE_SUCCESS ) ) {
545 0 : FD_LOG_ERR(( "Failed to encode feature account %s (%d)", addr_b58, decode_err ));
546 0 : }
547 :
548 0 : fd_hashes_update_lthash( modify_acct_rec->pubkey, modify_acct_rec->meta, prev_hash, bank, capture_ctx );
549 0 : fd_txn_account_mutable_fini( modify_acct_rec, accdb, &modify_acct_prepare );
550 0 : }
551 0 : }
552 :
553 : static void
554 : fd_features_activate( fd_bank_t * bank,
555 : fd_accdb_user_t * accdb,
556 : fd_funk_txn_xid_t const * xid,
557 9 : fd_capture_ctx_t * capture_ctx ) {
558 9 : for( fd_feature_id_t const * id = fd_feature_iter_init();
559 2286 : !fd_feature_iter_done( id );
560 2277 : id = fd_feature_iter_next( id ) ) {
561 2277 : fd_feature_activate( bank, accdb, xid, capture_ctx, id, &id->id );
562 2277 : }
563 9 : }
564 :
565 : /* SIMD-0194: deprecate_rent_exemption_threshold
566 : https://github.com/anza-xyz/agave/blob/v3.1.4/runtime/src/bank.rs#L5322-L5329 */
567 : static void
568 : deprecate_rent_exemption_threshold( fd_bank_t * bank,
569 : fd_accdb_user_t * accdb,
570 : fd_funk_txn_xid_t const * xid,
571 : fd_capture_ctx_t * capture_ctx,
572 3 : fd_funk_t * funk ) {
573 3 : fd_rent_t rent[1] = {0};
574 3 : if( FD_UNLIKELY( !fd_sysvar_rent_read( funk, xid, rent ) ) ) {
575 0 : FD_LOG_CRIT(( "fd_sysvar_rent_read failed" ));
576 0 : }
577 3 : rent->lamports_per_uint8_year = fd_rust_cast_double_to_ulong(
578 3 : (double)rent->lamports_per_uint8_year * rent->exemption_threshold );
579 3 : rent->exemption_threshold = FD_SIMD_0194_NEW_RENT_EXEMPTION_THRESHOLD;
580 :
581 : /* We don't refresh the sysvar cache here. The cache is refreshed in
582 : fd_sysvar_cache_restore, which is called at the start of every block
583 : in fd_runtime_block_execute_prepare, after this function. */
584 3 : fd_sysvar_rent_write( bank, accdb, xid, capture_ctx, rent );
585 3 : fd_bank_rent_set( bank, *rent );
586 3 : }
587 :
588 : /* Starting a new epoch.
589 : New epoch: T
590 : Just ended epoch: T-1
591 : Epoch before: T-2
592 :
593 : In this function:
594 : - stakes in T-2 (vote_states_prev_prev) should be replaced by T-1 (vote_states_prev)
595 : - stakes at T-1 (vote_states_prev) should be replaced by updated stakes at T (vote_states)
596 : - leader schedule should be calculated using new T-2 stakes (vote_states_prev_prev)
597 :
598 : Invariant during an epoch T:
599 : vote_states_prev holds the stakes at T-1
600 : vote_states_prev_prev holds the stakes at T-2
601 : */
602 : /* process for the start of a new epoch */
603 : static void
604 : fd_runtime_process_new_epoch( fd_banks_t * banks,
605 : fd_bank_t * bank,
606 : fd_accdb_user_t * accdb,
607 : fd_funk_txn_xid_t const * xid,
608 : fd_capture_ctx_t * capture_ctx,
609 : ulong parent_epoch,
610 9 : fd_runtime_stack_t * runtime_stack ) {
611 :
612 9 : FD_LOG_NOTICE(( "fd_process_new_epoch start, epoch: %lu, slot: %lu", fd_bank_epoch_get( bank ), fd_bank_slot_get( bank ) ));
613 :
614 9 : runtime_stack->stakes.prev_vote_credits_used = 0;
615 :
616 9 : fd_stake_delegations_t const * stake_delegations = fd_bank_stake_delegations_frontier_query( banks, bank );
617 9 : if( FD_UNLIKELY( !stake_delegations ) ) {
618 0 : FD_LOG_CRIT(( "stake_delegations is NULL" ));
619 0 : }
620 :
621 9 : long start = fd_log_wallclock();
622 :
623 9 : ulong const slot = fd_bank_slot_get( bank );
624 :
625 : /* Activate new features
626 : https://github.com/anza-xyz/agave/blob/v2.1.0/runtime/src/bank.rs#L6587-L6598 */
627 :
628 9 : fd_funk_t * funk = fd_accdb_user_v1_funk( accdb );
629 9 : fd_features_activate( bank, accdb, xid, capture_ctx );
630 9 : fd_features_restore( bank, funk, xid );
631 :
632 : /* SIMD-0194: deprecate_rent_exemption_threshold
633 : https://github.com/anza-xyz/agave/blob/v3.1.4/runtime/src/bank.rs#L5322-L5329 */
634 9 : if( FD_UNLIKELY( FD_FEATURE_JUST_ACTIVATED_BANK( bank, deprecate_rent_exemption_threshold ) ) ) {
635 3 : deprecate_rent_exemption_threshold( bank, accdb, xid, capture_ctx, funk );
636 3 : }
637 :
638 : /* Apply builtin program feature transitions
639 : https://github.com/anza-xyz/agave/blob/v2.1.0/runtime/src/bank.rs#L6621-L6624 */
640 :
641 9 : fd_apply_builtin_program_feature_transitions( bank, accdb, xid, runtime_stack, capture_ctx );
642 :
643 : /* Get the new rate activation epoch */
644 9 : int _err[1];
645 9 : ulong new_rate_activation_epoch_val = 0UL;
646 9 : ulong * new_rate_activation_epoch = &new_rate_activation_epoch_val;
647 9 : int is_some = fd_new_warmup_cooldown_rate_epoch(
648 9 : fd_bank_epoch_schedule_query( bank ),
649 9 : fd_bank_features_query( bank ),
650 9 : slot,
651 9 : new_rate_activation_epoch,
652 9 : _err );
653 9 : if( FD_UNLIKELY( !is_some ) ) {
654 9 : new_rate_activation_epoch = NULL;
655 9 : }
656 :
657 : /* Updates stake history sysvar accumulated values and recomputes
658 : stake delegations for vote accounts. */
659 :
660 9 : fd_stakes_activate_epoch( bank, accdb, xid, capture_ctx, stake_delegations, new_rate_activation_epoch );
661 :
662 : /* Distribute rewards. This involves calculating the rewards for
663 : every vote and stake account. */
664 :
665 9 : fd_hash_t const * parent_blockhash = fd_blockhashes_peek_last_hash( fd_bank_block_hash_queue_query( bank ) );
666 9 : fd_begin_partitioned_rewards( bank,
667 9 : accdb,
668 9 : xid,
669 9 : runtime_stack,
670 9 : capture_ctx,
671 9 : stake_delegations,
672 9 : parent_blockhash,
673 9 : parent_epoch );
674 :
675 : /* The Agave client handles updating their stakes cache with a call to
676 : update_epoch_stakes() which keys stakes by the leader schedule
677 : epochs and retains up to 6 epochs of stakes. However, to correctly
678 : calculate the leader schedule, we just need to maintain the vote
679 : states for the current epoch, the previous epoch, and the one
680 : before that.
681 : https://github.com/anza-xyz/agave/blob/v3.0.4/runtime/src/bank.rs#L2175
682 : */
683 :
684 : /* We want to cache the stake values for T-1 and T-2 in the forward
685 : looking vote states. This is done as an optimization for tower
686 : calculations (T-1 stake) and clock calculation (T-2 stake).
687 : We use the current stake to populate the T-1 stake and the T-1
688 : stake to populate the T-2 stake. */
689 9 : fd_runtime_refresh_previous_stake_values( bank );
690 :
691 : /* Update vote_states_prev_prev with vote_states_prev */
692 :
693 9 : fd_runtime_update_vote_states_prev_prev( bank );
694 :
695 : /* Update vote_states_prev with vote_states */
696 :
697 9 : fd_runtime_update_vote_states_prev( bank );
698 :
699 : /* Now that our stakes caches have been updated, we can calculate the
700 : leader schedule for the upcoming epoch epoch using our new
701 : vote_states_prev_prev (stakes for T-2). */
702 :
703 9 : fd_runtime_update_leaders( bank, runtime_stack );
704 :
705 9 : long end = fd_log_wallclock();
706 9 : FD_LOG_NOTICE(("fd_process_new_epoch took %ld ns", end - start));
707 :
708 9 : }
709 :
710 : static void
711 : fd_runtime_block_pre_execute_process_new_epoch( fd_banks_t * banks,
712 : fd_bank_t * bank,
713 : fd_accdb_user_t * accdb,
714 : fd_funk_txn_xid_t const * xid,
715 : fd_capture_ctx_t * capture_ctx,
716 : fd_runtime_stack_t * runtime_stack,
717 27 : int * is_epoch_boundary ) {
718 :
719 27 : ulong const slot = fd_bank_slot_get( bank );
720 27 : if( slot != 0UL ) {
721 27 : fd_epoch_schedule_t const * epoch_schedule = fd_bank_epoch_schedule_query( bank );
722 :
723 27 : ulong prev_epoch = fd_slot_to_epoch( epoch_schedule, fd_bank_parent_slot_get( bank ), NULL );
724 27 : ulong slot_idx;
725 27 : ulong new_epoch = fd_slot_to_epoch( epoch_schedule, slot, &slot_idx );
726 27 : if( FD_UNLIKELY( slot_idx==1UL && new_epoch==0UL ) ) {
727 : /* The block after genesis has a height of 1. */
728 3 : fd_bank_block_height_set( bank, 1UL );
729 3 : }
730 :
731 27 : if( FD_UNLIKELY( prev_epoch<new_epoch || !slot_idx ) ) {
732 9 : FD_LOG_DEBUG(( "Epoch boundary starting" ));
733 9 : fd_runtime_process_new_epoch( banks, bank, accdb, xid, capture_ctx, prev_epoch, runtime_stack );
734 9 : *is_epoch_boundary = 1;
735 9 : }
736 27 : } else {
737 0 : *is_epoch_boundary = 0;
738 0 : }
739 :
740 27 : if( FD_LIKELY( fd_bank_slot_get( bank )!=0UL ) ) {
741 27 : fd_distribute_partitioned_epoch_rewards( bank, accdb, xid, capture_ctx );
742 27 : }
743 27 : }
744 :
745 :
746 : static void
747 : fd_runtime_block_sysvar_update_pre_execute( fd_bank_t * bank,
748 : fd_accdb_user_t * accdb,
749 : fd_funk_txn_xid_t const * xid,
750 : fd_runtime_stack_t * runtime_stack,
751 27 : fd_capture_ctx_t * capture_ctx ) {
752 : // let (fee_rate_governor, fee_components_time_us) = measure_us!(
753 : // FeeRateGovernor::new_derived(&parent.fee_rate_governor, parent.signature_count())
754 : // );
755 : /* https://github.com/firedancer-io/solana/blob/dab3da8e7b667d7527565bddbdbecf7ec1fb868e/runtime/src/bank.rs#L1312-L1314 */
756 :
757 27 : fd_runtime_new_fee_rate_governor_derived( bank, fd_bank_parent_signature_cnt_get( bank ) );
758 :
759 27 : fd_epoch_schedule_t const * epoch_schedule = fd_bank_epoch_schedule_query( bank );
760 27 : ulong parent_epoch = fd_slot_to_epoch( epoch_schedule, fd_bank_parent_slot_get( bank ), NULL );
761 27 : fd_sysvar_clock_update( bank, accdb, xid, capture_ctx, runtime_stack, &parent_epoch );
762 :
763 : // It has to go into the current txn previous info but is not in slot 0
764 27 : if( fd_bank_slot_get( bank ) != 0 ) {
765 27 : fd_sysvar_slot_hashes_update( bank, accdb, xid, capture_ctx );
766 27 : }
767 27 : fd_sysvar_last_restart_slot_update( bank, accdb, xid, capture_ctx, fd_bank_last_restart_slot_get( bank ).slot );
768 27 : }
769 :
770 : int
771 : fd_runtime_load_txn_address_lookup_tables(
772 : fd_txn_t const * txn,
773 : uchar const * payload,
774 : fd_funk_t * funk,
775 : fd_funk_txn_xid_t const * xid,
776 : ulong slot,
777 : fd_slot_hash_t const * hashes, /* deque */
778 0 : fd_acct_addr_t * out_accts_alt ) {
779 :
780 0 : if( FD_LIKELY( txn->transaction_version!=FD_TXN_V0 ) ) return FD_RUNTIME_EXECUTE_SUCCESS;
781 :
782 0 : fd_alut_interp_t interp[1];
783 0 : fd_alut_interp_new(
784 0 : interp,
785 0 : out_accts_alt,
786 0 : txn,
787 0 : payload,
788 0 : hashes,
789 0 : slot );
790 :
791 0 : fd_txn_acct_addr_lut_t const * addr_luts = fd_txn_get_address_tables_const( txn );
792 0 : for( ulong i=0UL; i<txn->addr_table_lookup_cnt; i++ ) {
793 0 : fd_txn_acct_addr_lut_t const * addr_lut = &addr_luts[i];
794 0 : fd_pubkey_t addr_lut_acc = FD_LOAD( fd_pubkey_t, payload+addr_lut->addr_off );
795 :
796 : /* https://github.com/anza-xyz/agave/blob/368ea563c423b0a85cc317891187e15c9a321521/accounts-db/src/accounts.rs#L90-L94 */
797 0 : fd_txn_account_t addr_lut_rec[1];
798 0 : int db_err = fd_txn_account_init_from_funk_readonly(
799 0 : addr_lut_rec, &addr_lut_acc, funk, xid );
800 0 : if( FD_UNLIKELY( db_err!=FD_ACC_MGR_SUCCESS ) ) {
801 0 : return FD_RUNTIME_TXN_ERR_ADDRESS_LOOKUP_TABLE_NOT_FOUND;
802 0 : }
803 :
804 0 : int err = fd_alut_interp_next(
805 0 : interp,
806 0 : &addr_lut_acc,
807 0 : fd_txn_account_get_owner ( addr_lut_rec ),
808 0 : fd_txn_account_get_data ( addr_lut_rec ),
809 0 : fd_txn_account_get_data_len( addr_lut_rec ) );
810 0 : if( FD_UNLIKELY( err ) ) return err;
811 0 : }
812 :
813 0 : fd_alut_interp_delete( interp );
814 :
815 0 : return FD_RUNTIME_EXECUTE_SUCCESS;
816 0 : }
817 :
818 : void
819 : fd_runtime_block_execute_prepare( fd_banks_t * banks,
820 : fd_bank_t * bank,
821 : fd_accdb_user_t * accdb,
822 : fd_runtime_stack_t * runtime_stack,
823 : fd_capture_ctx_t * capture_ctx,
824 27 : int * is_epoch_boundary ) {
825 :
826 27 : fd_funk_txn_xid_t const xid = { .ul = { fd_bank_slot_get( bank ), bank->idx } };
827 :
828 27 : fd_runtime_block_pre_execute_process_new_epoch( banks, bank, accdb, &xid, capture_ctx, runtime_stack, is_epoch_boundary );
829 :
830 27 : fd_bank_execution_fees_set( bank, 0UL );
831 27 : fd_bank_priority_fees_set( bank, 0UL );
832 27 : fd_bank_signature_count_set( bank, 0UL );
833 27 : fd_bank_total_compute_units_used_set( bank, 0UL );
834 :
835 27 : if( FD_LIKELY( fd_bank_slot_get( bank ) ) ) {
836 27 : fd_cost_tracker_t * cost_tracker = fd_bank_cost_tracker_locking_modify( bank );
837 27 : FD_TEST( cost_tracker );
838 27 : fd_cost_tracker_init( cost_tracker, fd_bank_features_query( bank ), fd_bank_slot_get( bank ) );
839 27 : fd_bank_cost_tracker_end_locking_modify( bank );
840 27 : }
841 :
842 27 : fd_runtime_block_sysvar_update_pre_execute( bank, accdb, &xid, runtime_stack, capture_ctx );
843 :
844 27 : fd_funk_t * funk = fd_accdb_user_v1_funk( accdb );
845 27 : if( FD_UNLIKELY( !fd_sysvar_cache_restore( bank, funk, &xid ) ) ) {
846 0 : FD_LOG_ERR(( "Failed to restore sysvar cache" ));
847 0 : }
848 27 : }
849 :
850 : static void
851 : fd_runtime_update_bank_hash( fd_bank_t * bank,
852 0 : fd_capture_ctx_t * capture_ctx ) {
853 : /* Save the previous bank hash, and the parents signature count */
854 0 : fd_hash_t const * prev_bank_hash = NULL;
855 0 : if( FD_LIKELY( fd_bank_slot_get( bank )!=0UL ) ) {
856 0 : prev_bank_hash = fd_bank_bank_hash_query( bank );
857 0 : fd_bank_prev_bank_hash_set( bank, *prev_bank_hash );
858 0 : } else {
859 0 : prev_bank_hash = fd_bank_prev_bank_hash_query( bank );
860 0 : }
861 :
862 0 : fd_bank_parent_signature_cnt_set( bank, fd_bank_signature_count_get( bank ) );
863 :
864 : /* Compute the new bank hash */
865 0 : fd_lthash_value_t const * lthash = fd_bank_lthash_locking_query( bank );
866 0 : fd_hash_t new_bank_hash[1] = { 0 };
867 0 : fd_hashes_hash_bank(
868 0 : lthash,
869 0 : prev_bank_hash,
870 0 : (fd_hash_t *)fd_bank_poh_query( bank )->hash,
871 0 : fd_bank_signature_count_get( bank ),
872 0 : new_bank_hash );
873 :
874 : /* Update the bank hash */
875 0 : fd_bank_bank_hash_set( bank, *new_bank_hash );
876 :
877 0 : if( capture_ctx != NULL && capture_ctx->capture != NULL &&
878 0 : fd_bank_slot_get( bank )>=capture_ctx->solcap_start_slot ) {
879 :
880 0 : uchar lthash_hash[FD_HASH_FOOTPRINT];
881 0 : fd_blake3_hash(lthash->bytes, FD_LTHASH_LEN_BYTES, lthash_hash );
882 0 : fd_capture_link_write_bank_preimage(
883 0 : capture_ctx,
884 0 : fd_bank_slot_get( bank ),
885 0 : (fd_hash_t *)new_bank_hash->hash,
886 0 : (fd_hash_t *)fd_bank_prev_bank_hash_query( bank ),
887 0 : (fd_hash_t *)lthash_hash,
888 0 : (fd_hash_t *)fd_bank_poh_query( bank )->hash,
889 0 : fd_bank_signature_count_get( bank ) );
890 0 : }
891 :
892 0 : fd_bank_lthash_end_locking_query( bank );
893 0 : }
894 :
895 : /******************************************************************************/
896 : /* Transaction Level Execution Management */
897 : /******************************************************************************/
898 :
899 : /* fd_runtime_pre_execute_check is responsible for conducting many of the
900 : transaction sanitization checks. */
901 :
902 : static inline int
903 : fd_runtime_pre_execute_check( fd_runtime_t * runtime,
904 : fd_bank_t * bank,
905 : fd_txn_in_t const * txn_in,
906 0 : fd_txn_out_t * txn_out ) {
907 :
908 : /* Set up the core account keys. These are the account keys directly
909 : passed in via the serialized transaction, represented as an array.
910 : Note that this does not include additional keys referenced in
911 : address lookup tables. */
912 0 : fd_executor_setup_txn_account_keys( txn_in, txn_out );
913 :
914 0 : int err;
915 :
916 : /* https://github.com/anza-xyz/agave/blob/16de8b75ebcd57022409b422de557dd37b1de8db/sdk/src/transaction/sanitized.rs#L263-L275
917 : TODO: Agave's precompile verification is done at the slot level, before batching and executing transactions. This logic should probably
918 : be moved in the future. The Agave call heirarchy looks something like this:
919 : process_single_slot
920 : v
921 : confirm_full_slot
922 : v
923 : confirm_slot_entries --------------------------------------------------->
924 : v v v
925 : verify_transaction ComputeBudget::process_instruction process_entries
926 : v v
927 : verify_precompiles process_batches
928 : v
929 : ...
930 : v
931 : load_and_execute_transactions
932 : v
933 : ...
934 : v
935 : load_accounts --> load_transaction_accounts
936 : v
937 : general transaction execution
938 :
939 : */
940 :
941 0 : # if FD_HAS_FLATCC
942 0 : uchar dump_txn = !!( runtime->log.capture_ctx &&
943 0 : fd_bank_slot_get( bank ) >= runtime->log.capture_ctx->dump_proto_start_slot &&
944 0 : runtime->log.capture_ctx->dump_txn_to_pb );
945 0 : if( FD_UNLIKELY( dump_txn ) ) {
946 0 : fd_dump_txn_to_protobuf( runtime, bank, txn_in, txn_out );
947 0 : }
948 0 : # endif
949 :
950 : /* Verify the transaction. For now, this step only involves processing
951 : the compute budget instructions. */
952 0 : err = fd_executor_verify_transaction( bank, txn_in, txn_out );
953 0 : if( FD_UNLIKELY( err!=FD_RUNTIME_EXECUTE_SUCCESS ) ) {
954 0 : txn_out->err.is_committable = 0;
955 0 : return err;
956 0 : }
957 :
958 : /* Resolve and verify ALUT-referenced account keys, if applicable */
959 0 : err = fd_executor_setup_txn_alut_account_keys( runtime, bank, txn_in, txn_out );
960 0 : if( FD_UNLIKELY( err!=FD_RUNTIME_EXECUTE_SUCCESS ) ) {
961 0 : txn_out->err.is_committable = 0;
962 0 : return err;
963 0 : }
964 :
965 : /* Set up the transaction accounts and other txn ctx metadata */
966 0 : fd_executor_setup_accounts_for_txn( runtime, bank, txn_in, txn_out );
967 :
968 : /* Post-sanitization checks. Called from prepare_sanitized_batch()
969 : which, for now, only is used to lock the accounts and perform a
970 : couple basic validations.
971 : https://github.com/anza-xyz/agave/blob/838c1952595809a31520ff1603a13f2c9123aa51/accounts-db/src/account_locks.rs#L118 */
972 0 : err = fd_executor_validate_account_locks( bank, txn_out );
973 0 : if( FD_UNLIKELY( err!=FD_RUNTIME_EXECUTE_SUCCESS ) ) {
974 0 : txn_out->err.is_committable = 0;
975 0 : return err;
976 0 : }
977 :
978 : /* load_and_execute_transactions() -> check_transactions()
979 : https://github.com/anza-xyz/agave/blob/ced98f1ebe73f7e9691308afa757323003ff744f/runtime/src/bank.rs#L3667-L3672 */
980 0 : err = fd_executor_check_transactions( runtime, bank, txn_in, txn_out );
981 0 : if( FD_UNLIKELY( err!=FD_RUNTIME_EXECUTE_SUCCESS ) ) {
982 0 : txn_out->err.is_committable = 0;
983 0 : return err;
984 0 : }
985 :
986 : /* load_and_execute_sanitized_transactions() -> validate_fees() ->
987 : validate_transaction_fee_payer()
988 : https://github.com/anza-xyz/agave/blob/ced98f1ebe73f7e9691308afa757323003ff744f/svm/src/transaction_processor.rs#L236-L249 */
989 0 : err = fd_executor_validate_transaction_fee_payer( runtime, bank, txn_in, txn_out );
990 0 : if( FD_UNLIKELY( err!=FD_RUNTIME_EXECUTE_SUCCESS ) ) {
991 0 : txn_out->err.is_committable = 0;
992 0 : return err;
993 0 : }
994 :
995 0 : txn_out->details.exec_start_timestamp = fd_tickcount();
996 :
997 : /* https://github.com/anza-xyz/agave/blob/ced98f1ebe73f7e9691308afa757323003ff744f/svm/src/transaction_processor.rs#L284-L296 */
998 0 : err = fd_executor_load_transaction_accounts( runtime, bank, txn_in, txn_out );
999 0 : if( FD_UNLIKELY( err!=FD_RUNTIME_EXECUTE_SUCCESS ) ) {
1000 : /* Regardless of whether transaction accounts were loaded successfully, the transaction is
1001 : included in the block and transaction fees are collected.
1002 : https://github.com/anza-xyz/agave/blob/v2.1.6/svm/src/transaction_processor.rs#L341-L357 */
1003 0 : txn_out->err.is_fees_only = 1;
1004 :
1005 : /* If the transaction fails to load, the "rollback" accounts will include one of the following:
1006 : 1. Nonce account only
1007 : 2. Fee payer only
1008 : 3. Nonce account + fee payer
1009 :
1010 : Because the cost tracker uses the loaded account data size in block cost calculations, we need to
1011 : make sure our calculated loaded accounts data size is conformant with Agave's.
1012 : https://github.com/anza-xyz/agave/blob/v2.1.14/runtime/src/bank.rs#L4116
1013 :
1014 : In any case, we should always add the dlen of the fee payer. */
1015 0 : txn_out->details.loaded_accounts_data_size = txn_out->accounts.metas[ FD_FEE_PAYER_TXN_IDX ]->dlen;
1016 :
1017 : /* Special case handling for if a nonce account is present in the transaction. */
1018 0 : if( txn_out->accounts.nonce_idx_in_txn!=ULONG_MAX ) {
1019 : /* If the nonce account is not the fee payer, then we separately add the dlen of the nonce account. Otherwise, we would
1020 : be double counting the dlen of the fee payer. */
1021 0 : if( txn_out->accounts.nonce_idx_in_txn!=FD_FEE_PAYER_TXN_IDX ) {
1022 0 : txn_out->details.loaded_accounts_data_size += txn_out->accounts.rollback_nonce->dlen;
1023 0 : }
1024 0 : }
1025 0 : }
1026 :
1027 : /*
1028 : The fee payer and the nonce account will be stored and hashed so
1029 : long as the transaction landed on chain, or, in Agave terminology,
1030 : the transaction was processed.
1031 : https://github.com/anza-xyz/agave/blob/v2.1.1/runtime/src/account_saver.rs#L72
1032 :
1033 : A transaction lands on chain in one of two ways:
1034 : (1) Passed fee validation and loaded accounts.
1035 : (2) Passed fee validation and failed to load accounts and the enable_transaction_loading_failure_fees feature is enabled as per
1036 : SIMD-0082 https://github.com/anza-xyz/feature-gate-tracker/issues/52
1037 :
1038 : So, at this point, the transaction is committable.
1039 : */
1040 :
1041 0 : return err;
1042 0 : }
1043 :
1044 : /* fd_runtime_finalize_account is a helper used to commit the data from
1045 : a writable transaction account back into the accountsdb. */
1046 :
1047 : static void
1048 : fd_runtime_finalize_account( fd_accdb_user_t * accdb,
1049 : fd_funk_txn_xid_t const * xid,
1050 : fd_pubkey_t const * pubkey,
1051 0 : fd_account_meta_t * meta ) {
1052 : /* FIXME if account doesn't change according to LtHash, don't update
1053 : database record */
1054 :
1055 0 : fd_accdb_rw_t rw[1];
1056 0 : int rw_ok = !!fd_accdb_open_rw(
1057 0 : accdb,
1058 0 : rw,
1059 0 : xid,
1060 0 : pubkey,
1061 0 : meta->dlen,
1062 0 : FD_ACCDB_FLAG_CREATE|FD_ACCDB_FLAG_TRUNCATE );
1063 0 : if( FD_UNLIKELY( !rw_ok ) ) FD_LOG_CRIT(( "fd_accdb_open_rw failed" ));
1064 :
1065 0 : void const * data = fd_account_data( meta );
1066 0 : fd_accdb_ref_lamports_set( rw, meta->lamports );
1067 0 : fd_accdb_ref_owner_set ( rw, meta->owner );
1068 0 : fd_accdb_ref_exec_bit_set( rw, meta->executable );
1069 0 : fd_accdb_ref_data_set ( rw, data, meta->dlen );
1070 0 : fd_accdb_ref_slot_set ( rw, xid->ul[0] );
1071 :
1072 0 : fd_accdb_close_rw( accdb, rw );
1073 0 : }
1074 :
1075 : /* fd_runtime_save_account is a convenience wrapper that looks
1076 : up the previous account state from funk before updating the lthash
1077 : and saving the new version of the account to funk.
1078 :
1079 : TODO: We have to make a read request to the DB, so that we can calculate
1080 : the previous version of the accounts hash, to mix-out from the accumulated
1081 : lthash. In future we should likely cache the previous version of the account
1082 : in transaction setup, so that we don't have to issue a read request here.
1083 :
1084 : funk is the funk database handle. funk_txn is the transaction
1085 : context to query (NULL for root context). account is the modified
1086 : account. bank and capture_ctx are passed to fd_hashes_update_lthash.
1087 :
1088 : This function:
1089 : - Queries funk for the previous account version
1090 : - Computes the hash of the previous version (or uses zero for new)
1091 : - Calls fd_hashes_update_lthash with the computed previous hash
1092 : - Saves the new version of the account to Funk
1093 : - Notifies the replay tile that an account update has occurred, so it
1094 : can write the account to the solcap file.
1095 :
1096 : The function handles FD_ACC_MGR_ERR_UNKNOWN_ACCOUNT gracefully (uses
1097 : zero hash). On other funk errors, the function will FD_LOG_ERR.
1098 : All non-optional pointers must be valid. */
1099 :
1100 : static void
1101 : fd_runtime_save_account( fd_accdb_user_t * accdb,
1102 : fd_funk_txn_xid_t const * xid,
1103 : fd_pubkey_t const * pubkey,
1104 : fd_account_meta_t * meta,
1105 : fd_bank_t * bank,
1106 0 : fd_capture_ctx_t * capture_ctx ) {
1107 :
1108 : /* Update LtHash
1109 : - Query old version of account and hash it
1110 : - Hash new version of account */
1111 0 : fd_lthash_value_t prev_hash[1];
1112 0 : fd_accdb_ro_t ro[1];
1113 0 : if( fd_accdb_open_ro( accdb, ro, xid, pubkey ) ) {
1114 0 : fd_hashes_account_lthash(
1115 0 : pubkey,
1116 0 : ro->meta,
1117 0 : fd_accdb_ref_data_const( ro ),
1118 0 : prev_hash );
1119 0 : fd_accdb_close_ro( accdb, ro );
1120 0 : } else {
1121 0 : fd_lthash_zero( prev_hash );
1122 0 : }
1123 :
1124 : /* Mix in the account hash into the bank hash */
1125 0 : fd_hashes_update_lthash( pubkey, meta, prev_hash, bank, capture_ctx );
1126 :
1127 : /* Save the new version of the account to Funk */
1128 0 : fd_runtime_finalize_account( accdb, xid, pubkey, meta );
1129 0 : }
1130 :
1131 : /* fd_runtime_commit_txn is a helper used by the non-tpool transaction
1132 : executor to finalize borrowed account changes back into funk. It also
1133 : handles txncache insertion and updates to the vote/stake cache.
1134 : TODO: This function should probably be moved to fd_executor.c. */
1135 :
1136 : void
1137 : fd_runtime_commit_txn( fd_runtime_t * runtime,
1138 : fd_bank_t * bank,
1139 : fd_txn_in_t const * txn_in,
1140 0 : fd_txn_out_t * txn_out ) {
1141 :
1142 0 : txn_out->details.commit_start_timestamp = fd_tickcount();
1143 :
1144 0 : fd_funk_txn_xid_t xid = { .ul = { fd_bank_slot_get( bank ), bank->idx } };
1145 :
1146 0 : if( FD_UNLIKELY( txn_out->err.txn_err ) ) {
1147 :
1148 : /* Save the fee_payer. Everything but the fee balance should be reset.
1149 : TODO: an optimization here could be to use a dirty flag in the
1150 : borrowed account. If the borrowed account data has been changed in
1151 : any way, then the full account can be rolled back as it is done now.
1152 : However, most of the time the account data is not changed, and only
1153 : the lamport balance has to change. */
1154 :
1155 : /* With nonce account rollbacks, there are three cases:
1156 : 1. No nonce account in the transaction
1157 : 2. Nonce account is the fee payer
1158 : 3. Nonce account is not the fee payer
1159 :
1160 : We should always rollback the nonce account first. Note that the nonce account may be the fee payer (case 2). */
1161 0 : if( txn_out->accounts.nonce_idx_in_txn!=ULONG_MAX ) {
1162 0 : fd_runtime_save_account( runtime->accdb,
1163 0 : &xid,
1164 0 : &txn_out->accounts.keys[txn_out->accounts.nonce_idx_in_txn],
1165 0 : txn_out->accounts.rollback_nonce,
1166 0 : bank,
1167 0 : runtime->log.capture_ctx );
1168 0 : }
1169 :
1170 : /* Now, we must only save the fee payer if the nonce account was not the fee payer (because that was already saved above) */
1171 0 : if( FD_LIKELY( txn_out->accounts.nonce_idx_in_txn!=FD_FEE_PAYER_TXN_IDX ) ) {
1172 0 : fd_runtime_save_account( runtime->accdb,
1173 0 : &xid,
1174 0 : &txn_out->accounts.keys[FD_FEE_PAYER_TXN_IDX],
1175 0 : txn_out->accounts.rollback_fee_payer,
1176 0 : bank,
1177 0 : runtime->log.capture_ctx );
1178 0 : }
1179 0 : } else {
1180 :
1181 0 : for( ushort i=0; i<txn_out->accounts.cnt; i++ ) {
1182 : /* We are only interested in saving writable accounts and the fee
1183 : payer account. */
1184 0 : if( !fd_runtime_account_is_writable_idx( txn_in, txn_out, bank, i ) && i!=FD_FEE_PAYER_TXN_IDX ) {
1185 0 : continue;
1186 0 : }
1187 :
1188 0 : fd_pubkey_t const * pubkey = &txn_out->accounts.keys[i];
1189 0 : fd_account_meta_t * meta = txn_out->accounts.metas[i];
1190 :
1191 : /* Tips for bundles are collected in the bank: a user submitting a
1192 : bundle must include a instruction that transfers lamports to
1193 : a specific tip account. Tips accumulated through the slot. */
1194 0 : if( fd_pack_tip_is_tip_account( fd_type_pun_const( pubkey->uc ) ) ) {
1195 0 : txn_out->details.tips += fd_ulong_sat_sub( meta->lamports, runtime->accounts.starting_lamports[i] );
1196 0 : FD_ATOMIC_FETCH_AND_ADD( fd_bank_tips_modify( bank ), txn_out->details.tips );
1197 0 : }
1198 :
1199 0 : if( 0==memcmp( meta->owner, &fd_solana_vote_program_id, sizeof(fd_pubkey_t) ) ) {
1200 0 : fd_stakes_update_vote_state( pubkey, meta, bank );
1201 0 : }
1202 :
1203 0 : if( 0==memcmp( meta->owner, &fd_solana_stake_program_id, sizeof(fd_pubkey_t) ) ) {
1204 0 : fd_stakes_update_stake_delegation( pubkey, meta, bank );
1205 0 : }
1206 :
1207 : /* Reclaim any accounts that have 0-lamports, now that any related
1208 : cache updates have been applied. */
1209 0 : fd_executor_reclaim_account( txn_out->accounts.metas[i], fd_bank_slot_get( bank ) );
1210 :
1211 0 : fd_runtime_save_account( runtime->accdb, &xid, pubkey, meta, bank, runtime->log.capture_ctx );
1212 0 : }
1213 :
1214 : /* We need to queue any existing program accounts that may have
1215 : been deployed / upgraded for reverification in the program
1216 : cache since their programdata may have changed. ELF / sBPF
1217 : metadata will need to be updated. */
1218 0 : ulong current_slot = fd_bank_slot_get( bank );
1219 0 : for( uchar i=0; i<txn_out->details.programs_to_reverify_cnt; i++ ) {
1220 0 : fd_pubkey_t const * program_key = &txn_out->details.programs_to_reverify[i];
1221 0 : fd_progcache_invalidate( runtime->progcache, &xid, program_key, current_slot );
1222 0 : }
1223 0 : }
1224 :
1225 : /* Accumulate block-level information to the bank. */
1226 :
1227 0 : FD_ATOMIC_FETCH_AND_ADD( fd_bank_txn_count_modify( bank ), 1UL );
1228 0 : FD_ATOMIC_FETCH_AND_ADD( fd_bank_execution_fees_modify( bank ), txn_out->details.execution_fee );
1229 0 : FD_ATOMIC_FETCH_AND_ADD( fd_bank_priority_fees_modify( bank ), txn_out->details.priority_fee );
1230 0 : FD_ATOMIC_FETCH_AND_ADD( fd_bank_signature_count_modify( bank ), txn_out->details.signature_count );
1231 :
1232 0 : int is_vote = fd_txn_is_simple_vote_transaction( TXN( txn_in->txn ), txn_in->txn->payload );
1233 0 : if( !is_vote ){
1234 0 : FD_ATOMIC_FETCH_AND_ADD( fd_bank_nonvote_txn_count_modify( bank ), 1 );
1235 0 : if( FD_UNLIKELY( txn_out->err.exec_err ) ) {
1236 0 : FD_ATOMIC_FETCH_AND_ADD( fd_bank_nonvote_failed_txn_count_modify( bank ), 1 );
1237 0 : }
1238 0 : }
1239 :
1240 0 : if( FD_UNLIKELY( txn_out->err.exec_err ) ) {
1241 0 : FD_ATOMIC_FETCH_AND_ADD( fd_bank_failed_txn_count_modify( bank ), 1 );
1242 0 : }
1243 :
1244 0 : FD_ATOMIC_FETCH_AND_ADD( fd_bank_total_compute_units_used_modify( bank ), txn_out->details.compute_budget.compute_unit_limit - txn_out->details.compute_budget.compute_meter );
1245 :
1246 : /* Update the cost tracker. */
1247 :
1248 0 : fd_cost_tracker_t * cost_tracker = fd_bank_cost_tracker_locking_modify( bank );
1249 0 : int res = fd_cost_tracker_calculate_cost_and_add( cost_tracker, bank, txn_in, txn_out );
1250 0 : if( FD_UNLIKELY( res!=FD_COST_TRACKER_SUCCESS ) ) {
1251 0 : FD_LOG_DEBUG(( "fd_runtime_commit_txn: transaction failed to fit into block %d", res ));
1252 0 : txn_out->err.is_committable = 0;
1253 0 : }
1254 0 : fd_bank_cost_tracker_end_locking_modify( bank );
1255 :
1256 0 : txn_out->details.loaded_accounts_data_size_cost = fd_cost_tracker_calculate_loaded_accounts_data_size_cost( txn_out );
1257 :
1258 : /* Finally, update the status cache. */
1259 :
1260 0 : if( FD_LIKELY( runtime->status_cache && txn_out->accounts.nonce_idx_in_txn==ULONG_MAX ) ) {
1261 : /* In Agave, durable nonce transactions are inserted to the status
1262 : cache the same as any others, but this is only to serve RPC
1263 : requests, they do not need to be in there for correctness as the
1264 : nonce mechanism itself prevents double spend. We skip this logic
1265 : entirely to simplify and improve performance of the txn cache. */
1266 :
1267 0 : fd_hash_t * blockhash = (fd_hash_t *)((uchar *)txn_in->txn->payload + TXN( txn_in->txn )->recent_blockhash_off);
1268 0 : fd_txncache_insert( runtime->status_cache, bank->txncache_fork_id, blockhash->uc, txn_out->details.blake_txn_msg_hash.uc );
1269 0 : }
1270 0 : }
1271 :
1272 : void
1273 : fd_runtime_prepare_and_execute_txn( fd_runtime_t * runtime,
1274 : fd_bank_t * bank,
1275 : fd_txn_in_t const * txn_in,
1276 0 : fd_txn_out_t * txn_out ) {
1277 :
1278 0 : txn_out->details.prep_start_timestamp = fd_tickcount();
1279 0 : txn_out->details.load_start_timestamp = LONG_MAX;
1280 0 : txn_out->details.exec_start_timestamp = LONG_MAX;
1281 0 : txn_out->details.commit_start_timestamp = LONG_MAX;
1282 :
1283 0 : txn_out->accounts.cnt = 0UL;
1284 :
1285 0 : txn_out->details.programs_to_reverify_cnt = 0UL;
1286 0 : txn_out->details.loaded_accounts_data_size = 0UL;
1287 0 : txn_out->details.loaded_accounts_data_size_cost = 0UL;
1288 0 : txn_out->details.accounts_resize_delta = 0UL;
1289 0 : txn_out->details.return_data.len = 0UL;
1290 0 : txn_out->details.tips = 0UL;
1291 0 : txn_out->details.execution_fee = 0UL;
1292 0 : txn_out->details.priority_fee = 0UL;
1293 0 : txn_out->details.signature_count = TXN( txn_in->txn )->signature_cnt;
1294 0 : memset( txn_out->details.return_data.program_id.key, 0, sizeof(fd_pubkey_t) );
1295 0 : fd_compute_budget_details_new( &txn_out->details.compute_budget );
1296 :
1297 0 : runtime->accounts.executable_cnt = 0UL;
1298 0 : runtime->log.enable_log_collector = 0;
1299 0 : runtime->instr.trace_length = 0UL;
1300 0 : runtime->instr.current_idx = 0;
1301 0 : runtime->instr.stack_sz = 0;
1302 :
1303 0 : txn_out->err.is_committable = 1;
1304 0 : txn_out->err.is_fees_only = 0;
1305 0 : txn_out->err.txn_err = FD_RUNTIME_EXECUTE_SUCCESS;
1306 0 : txn_out->err.exec_err = FD_EXECUTOR_INSTR_SUCCESS;
1307 0 : txn_out->err.exec_err_kind = FD_EXECUTOR_ERR_KIND_NONE;
1308 0 : txn_out->err.exec_err_idx = INT_MAX;
1309 :
1310 : /* Transaction sanitization. If a transaction can't be commited or is
1311 : fees-only, we return early. */
1312 0 : txn_out->err.txn_err = fd_runtime_pre_execute_check( runtime, bank, txn_in, txn_out );
1313 :
1314 0 : txn_out->details.exec_start_timestamp = fd_tickcount();
1315 :
1316 : /* Execute the transaction. */
1317 0 : if( FD_LIKELY( txn_out->err.is_committable && !txn_out->err.is_fees_only ) ) {
1318 0 : txn_out->err.txn_err = fd_execute_txn( runtime, bank, txn_in, txn_out );
1319 0 : }
1320 0 : }
1321 :
1322 : /* fd_executor_txn_verify and fd_runtime_pre_execute_check are responisble
1323 : for the bulk of the pre-transaction execution checks in the runtime.
1324 : They aim to preserve the ordering present in the Agave client to match
1325 : parity in terms of error codes. Sigverify is kept separate from the rest
1326 : of the transaction checks for fuzzing convenience.
1327 :
1328 : For reference this is the general code path which contains all relevant
1329 : pre-transactions checks in the v2.0.x Agave client from upstream
1330 : to downstream is as follows:
1331 :
1332 : confirm_slot_entries() which calls verify_ticks() and
1333 : verify_transaction(). verify_transaction() calls verify_and_hash_message()
1334 : and verify_precompiles() which parallels fd_executor_txn_verify() and
1335 : fd_executor_verify_transaction().
1336 :
1337 : process_entries() contains a duplicate account check which is part of
1338 : agave account lock acquiring. This is checked inline in
1339 : fd_runtime_pre_execute_check().
1340 :
1341 : load_and_execute_transactions() contains the function check_transactions().
1342 : This contains check_age() and check_status_cache() which is paralleled by
1343 : fd_executor_check_transaction_age_and_compute_budget_limits() and
1344 : fd_executor_check_status_cache() respectively.
1345 :
1346 : load_and_execute_sanitized_transactions() contains validate_fees()
1347 : which is responsible for executing the compute budget instructions,
1348 : validating the fee payer and collecting the fee. This is mirrored in
1349 : firedancer with fd_executor_compute_budget_program_execute_instructions()
1350 : and fd_executor_collect_fees(). load_and_execute_sanitized_transactions()
1351 : also checks the total data size of the accounts in load_accounts() and
1352 : validates the program accounts in load_transaction_accounts(). This
1353 : is paralled by fd_executor_load_transaction_accounts(). */
1354 :
1355 :
1356 : /******************************************************************************/
1357 : /* Genesis */
1358 : /*******************************************************************************/
1359 :
1360 : static void
1361 : fd_runtime_genesis_init_program( fd_bank_t * bank,
1362 : fd_accdb_user_t * accdb,
1363 : fd_funk_txn_xid_t const * xid,
1364 0 : fd_capture_ctx_t * capture_ctx ) {
1365 :
1366 0 : fd_sysvar_clock_init( bank, accdb, xid, capture_ctx );
1367 0 : fd_sysvar_rent_init( bank, accdb, xid, capture_ctx );
1368 :
1369 0 : fd_sysvar_slot_history_init( bank, accdb, xid, capture_ctx );
1370 0 : fd_sysvar_epoch_schedule_init( bank, accdb, xid, capture_ctx );
1371 0 : fd_sysvar_recent_hashes_init( bank, accdb, xid, capture_ctx );
1372 0 : fd_sysvar_stake_history_init( bank, accdb, xid, capture_ctx );
1373 0 : fd_sysvar_last_restart_slot_init( bank, accdb, xid, capture_ctx );
1374 :
1375 0 : fd_builtin_programs_init( bank, accdb, xid, capture_ctx );
1376 0 : fd_stake_program_config_init( accdb, xid );
1377 0 : }
1378 :
1379 : static void
1380 : fd_runtime_init_bank_from_genesis( fd_banks_t * banks,
1381 : fd_bank_t * bank,
1382 : fd_funk_t * funk,
1383 : fd_funk_txn_xid_t const * xid,
1384 : fd_genesis_t const * genesis_block,
1385 0 : fd_hash_t const * genesis_hash ) {
1386 :
1387 0 : fd_bank_poh_set( bank, *genesis_hash );
1388 :
1389 0 : fd_hash_t * bank_hash = fd_bank_bank_hash_modify( bank );
1390 0 : memset( bank_hash->hash, 0, FD_SHA256_HASH_SZ );
1391 :
1392 0 : uint128 target_tick_duration = (uint128)genesis_block->poh.tick_duration_secs * 1000000000UL + (uint128)genesis_block->poh.tick_duration_ns;
1393 :
1394 0 : fd_epoch_schedule_t * epoch_schedule = fd_bank_epoch_schedule_modify( bank );
1395 0 : epoch_schedule->leader_schedule_slot_offset = genesis_block->epoch_schedule.leader_schedule_slot_offset;
1396 0 : epoch_schedule->warmup = genesis_block->epoch_schedule.warmup;
1397 0 : epoch_schedule->first_normal_epoch = genesis_block->epoch_schedule.first_normal_epoch;
1398 0 : epoch_schedule->first_normal_slot = genesis_block->epoch_schedule.first_normal_slot;
1399 0 : epoch_schedule->slots_per_epoch = genesis_block->epoch_schedule.slots_per_epoch;
1400 :
1401 0 : fd_rent_t * rent = fd_bank_rent_modify( bank );
1402 0 : rent->lamports_per_uint8_year = genesis_block->rent.lamports_per_uint8_year;
1403 0 : rent->exemption_threshold = genesis_block->rent.exemption_threshold;
1404 0 : rent->burn_percent = genesis_block->rent.burn_percent;
1405 :
1406 0 : fd_inflation_t * inflation = fd_bank_inflation_modify( bank );
1407 0 : inflation->initial = genesis_block->inflation.initial;
1408 0 : inflation->terminal = genesis_block->inflation.terminal;
1409 0 : inflation->taper = genesis_block->inflation.taper;
1410 0 : inflation->foundation = genesis_block->inflation.foundation;
1411 0 : inflation->foundation_term = genesis_block->inflation.foundation_term;
1412 0 : inflation->unused = 0.0;
1413 :
1414 0 : fd_bank_block_height_set( bank, 0UL );
1415 :
1416 0 : {
1417 : /* FIXME Why is there a previous blockhash at genesis? Why is the
1418 : last_hash field an option type in Agave, if even the first
1419 : real block has a previous blockhash? */
1420 : /* TODO: Use a real seed here. */
1421 0 : fd_blockhashes_t * bhq = fd_blockhashes_init( fd_bank_block_hash_queue_modify( bank ), 0UL );
1422 0 : fd_blockhash_info_t * info = fd_blockhashes_push_new( bhq, genesis_hash );
1423 0 : info->fee_calculator.lamports_per_signature = 0UL;
1424 0 : }
1425 :
1426 0 : fd_fee_rate_governor_t * fee_rate_governor = fd_bank_fee_rate_governor_modify( bank );
1427 0 : fee_rate_governor->target_lamports_per_signature = genesis_block->fee_rate_governor.target_lamports_per_signature;
1428 0 : fee_rate_governor->target_signatures_per_slot = genesis_block->fee_rate_governor.target_signatures_per_slot;
1429 0 : fee_rate_governor->min_lamports_per_signature = genesis_block->fee_rate_governor.min_lamports_per_signature;
1430 0 : fee_rate_governor->max_lamports_per_signature = genesis_block->fee_rate_governor.max_lamports_per_signature;
1431 0 : fee_rate_governor->burn_percent = genesis_block->fee_rate_governor.burn_percent;
1432 :
1433 0 : fd_bank_max_tick_height_set( bank, genesis_block->poh.ticks_per_slot * (fd_bank_slot_get( bank ) + 1) );
1434 :
1435 0 : fd_bank_hashes_per_tick_set( bank, genesis_block->poh.hashes_per_tick );
1436 :
1437 0 : fd_bank_ns_per_slot_set( bank, (fd_w_u128_t) { .ud=target_tick_duration * genesis_block->poh.ticks_per_slot } );
1438 :
1439 0 : fd_bank_ticks_per_slot_set( bank, genesis_block->poh.ticks_per_slot );
1440 :
1441 0 : fd_bank_genesis_creation_time_set( bank, genesis_block->creation_time );
1442 :
1443 0 : fd_bank_slots_per_year_set( bank, SECONDS_PER_YEAR * (1000000000.0 / (double)target_tick_duration) / (double)genesis_block->poh.ticks_per_slot );
1444 :
1445 0 : fd_bank_signature_count_set( bank, 0UL );
1446 :
1447 : /* Derive epoch stakes */
1448 :
1449 0 : fd_stake_delegations_t * stake_delegations = fd_banks_stake_delegations_root_query( banks );
1450 0 : if( FD_UNLIKELY( !stake_delegations ) ) {
1451 0 : FD_LOG_CRIT(( "Failed to join and new a stake delegations" ));
1452 0 : }
1453 :
1454 0 : fd_vote_states_t * vote_states = fd_vote_states_join( fd_vote_states_new( fd_bank_vote_states_locking_modify( bank ), FD_RUNTIME_MAX_VOTE_ACCOUNTS, 999UL ) );
1455 0 : if( FD_UNLIKELY( !vote_states ) ) {
1456 0 : FD_LOG_CRIT(( "Failed to join and new a vote states" ));
1457 0 : }
1458 :
1459 0 : ulong capitalization = 0UL;
1460 :
1461 :
1462 0 : for( ulong i=0UL; i<genesis_block->accounts_len; i++ ) {
1463 0 : fd_genesis_account_t * account = fd_type_pun( (uchar *)genesis_block + genesis_block->accounts_off[ i ] );
1464 :
1465 0 : capitalization = fd_ulong_sat_add( capitalization, account->meta.lamports );
1466 :
1467 0 : uchar const * acc_data = account->data;
1468 :
1469 0 : if( !memcmp( account->meta.owner, fd_solana_vote_program_id.key, sizeof(fd_pubkey_t) ) ) {
1470 : /* This means that there is a vote account which should be
1471 : inserted into the vote states. Even after the vote account is
1472 : inserted, we still don't know the total amount of stake that is
1473 : delegated to the vote account. This must be calculated later. */
1474 0 : fd_vote_states_update_from_account( vote_states, fd_type_pun( account->pubkey ), acc_data, account->meta.dlen );
1475 0 : } else if( !memcmp( account->meta.owner, fd_solana_stake_program_id.key, sizeof(fd_pubkey_t) ) ) {
1476 : /* If an account is a stake account, then it must be added to the
1477 : stake delegations cache. We should only add stake accounts that
1478 : have a valid non-zero stake. */
1479 0 : fd_stake_state_v2_t stake_state = {0};
1480 0 : if( FD_UNLIKELY( !fd_bincode_decode_static(
1481 0 : stake_state_v2, &stake_state,
1482 0 : acc_data, account->meta.dlen,
1483 0 : NULL ) ) ) {
1484 0 : FD_BASE58_ENCODE_32_BYTES( account->pubkey, stake_b58 );
1485 0 : FD_LOG_ERR(( "Failed to deserialize genesis stake account %s", stake_b58 ));
1486 0 : }
1487 0 : if( !fd_stake_state_v2_is_stake( &stake_state ) ) continue;
1488 0 : if( !stake_state.inner.stake.stake.delegation.stake ) continue;
1489 :
1490 0 : fd_stake_delegations_update(
1491 0 : stake_delegations,
1492 0 : (fd_pubkey_t *)account->pubkey,
1493 0 : &stake_state.inner.stake.stake.delegation.voter_pubkey,
1494 0 : stake_state.inner.stake.stake.delegation.stake,
1495 0 : stake_state.inner.stake.stake.delegation.activation_epoch,
1496 0 : stake_state.inner.stake.stake.delegation.deactivation_epoch,
1497 0 : stake_state.inner.stake.stake.credits_observed,
1498 0 : stake_state.inner.stake.stake.delegation.warmup_cooldown_rate );
1499 :
1500 0 : } else if( !memcmp( account->meta.owner, fd_solana_feature_program_id.key, sizeof(fd_pubkey_t) ) ) {
1501 : /* Feature Account */
1502 :
1503 : /* Scan list of feature IDs to resolve address=>feature offset */
1504 0 : fd_feature_id_t const *found = NULL;
1505 0 : for( fd_feature_id_t const * id = fd_feature_iter_init();
1506 0 : !fd_feature_iter_done( id );
1507 0 : id = fd_feature_iter_next( id ) ) {
1508 0 : if( !memcmp( account->pubkey, id->id.key, sizeof(fd_pubkey_t) ) ) {
1509 0 : found = id;
1510 0 : break;
1511 0 : }
1512 0 : }
1513 :
1514 0 : if( found ) {
1515 : /* Load feature activation */
1516 0 : fd_feature_t feature[1];
1517 0 : FD_TEST( fd_bincode_decode_static( feature, feature, acc_data, account->meta.dlen, NULL ) );
1518 :
1519 0 : fd_features_t * features = fd_bank_features_modify( bank );
1520 0 : if( feature->has_activated_at ) {
1521 0 : FD_BASE58_ENCODE_32_BYTES( account->pubkey, pubkey_b58 );
1522 0 : FD_LOG_DEBUG(( "Feature %s activated at %lu (genesis)", pubkey_b58, feature->activated_at ));
1523 0 : fd_features_set( features, found, feature->activated_at );
1524 0 : } else {
1525 0 : FD_BASE58_ENCODE_32_BYTES( account->pubkey, pubkey_b58 );
1526 0 : FD_LOG_DEBUG(( "Feature %s not activated (genesis)", pubkey_b58 ));
1527 0 : fd_features_set( features, found, ULONG_MAX );
1528 0 : }
1529 0 : }
1530 0 : }
1531 0 : }
1532 0 : fd_bank_vote_states_end_locking_modify( bank );
1533 :
1534 : /* fd_refresh_vote_accounts is responsible for updating the vote
1535 : states with the total amount of active delegated stake. It does
1536 : this by iterating over all active stake delegations and summing up
1537 : the amount of stake that is delegated to each vote account. */
1538 :
1539 0 : ulong new_rate_activation_epoch = 0UL;
1540 :
1541 0 : fd_stake_history_t stake_history[1];
1542 0 : fd_sysvar_stake_history_read( funk, xid, stake_history );
1543 :
1544 0 : fd_refresh_vote_accounts(
1545 0 : bank,
1546 0 : stake_delegations,
1547 0 : stake_history,
1548 0 : &new_rate_activation_epoch );
1549 :
1550 : /* Now that the stake and vote delegations are updated correctly, we
1551 : will propagate the vote states to the vote states for the previous
1552 : epoch and the epoch before that.
1553 :
1554 : This is despite the fact we are booting off of genesis which means
1555 : that there is no previous or previous-previous epoch. This is done
1556 : to simplify edge cases around leader schedule and rewards
1557 : calculation.
1558 :
1559 : TODO: Each of the edge cases around this needs to be documented
1560 : much better where each case is clearly enumerated and explained. */
1561 :
1562 0 : vote_states = fd_bank_vote_states_locking_modify( bank );
1563 0 : for( ulong i=0UL; i<genesis_block->accounts_len; i++ ) {
1564 0 : fd_genesis_account_t * account = fd_type_pun( (uchar *)genesis_block + genesis_block->accounts_off[ i ] );
1565 :
1566 0 : if( !memcmp( account->meta.owner, fd_solana_vote_program_id.key, sizeof(fd_pubkey_t) ) ) {
1567 0 : fd_vote_state_ele_t * vote_state = fd_vote_states_query( vote_states, fd_type_pun( account->pubkey ) );
1568 :
1569 0 : vote_state->stake_t_1 = vote_state->stake;
1570 0 : vote_state->stake_t_2 = vote_state->stake;
1571 0 : }
1572 0 : }
1573 :
1574 0 : fd_vote_states_t * vote_states_prev_prev = fd_bank_vote_states_prev_prev_locking_modify( bank );
1575 0 : fd_memcpy( vote_states_prev_prev, vote_states, FD_VOTE_STATES_FOOTPRINT );
1576 0 : fd_bank_vote_states_prev_prev_end_locking_modify( bank );
1577 :
1578 0 : fd_vote_states_t * vote_states_prev = fd_bank_vote_states_prev_locking_modify( bank );
1579 0 : fd_memcpy( vote_states_prev, vote_states, FD_VOTE_STATES_FOOTPRINT );
1580 0 : fd_bank_vote_states_prev_end_locking_modify( bank );
1581 :
1582 0 : fd_bank_vote_states_end_locking_modify( bank );
1583 :
1584 0 : fd_bank_epoch_set( bank, 0UL );
1585 :
1586 0 : fd_bank_capitalization_set( bank, capitalization );
1587 0 : }
1588 :
1589 : static int
1590 : fd_runtime_process_genesis_block( fd_bank_t * bank,
1591 : fd_accdb_user_t * accdb,
1592 : fd_funk_txn_xid_t const * xid,
1593 : fd_capture_ctx_t * capture_ctx,
1594 0 : fd_runtime_stack_t * runtime_stack ) {
1595 :
1596 0 : fd_hash_t * poh = fd_bank_poh_modify( bank );
1597 0 : ulong hashcnt_per_slot = fd_bank_hashes_per_tick_get( bank ) * fd_bank_ticks_per_slot_get( bank );
1598 0 : while( hashcnt_per_slot-- ) {
1599 0 : fd_sha256_hash( poh->hash, sizeof(fd_hash_t), poh->hash );
1600 0 : }
1601 :
1602 0 : fd_bank_execution_fees_set( bank, 0UL );
1603 :
1604 0 : fd_bank_priority_fees_set( bank, 0UL );
1605 :
1606 0 : fd_bank_signature_count_set( bank, 0UL );
1607 :
1608 0 : fd_bank_txn_count_set( bank, 0UL );
1609 :
1610 0 : fd_bank_failed_txn_count_set( bank, 0UL );
1611 :
1612 0 : fd_bank_nonvote_failed_txn_count_set( bank, 0UL );
1613 :
1614 0 : fd_bank_total_compute_units_used_set( bank, 0UL );
1615 :
1616 0 : fd_runtime_genesis_init_program( bank, accdb, xid, capture_ctx );
1617 :
1618 0 : fd_sysvar_slot_history_update( bank, accdb, xid, capture_ctx );
1619 :
1620 0 : fd_runtime_update_leaders( bank, runtime_stack );
1621 :
1622 0 : fd_runtime_freeze( bank, accdb, capture_ctx );
1623 :
1624 0 : fd_lthash_value_t const * lthash = fd_bank_lthash_locking_query( bank );
1625 :
1626 0 : fd_hash_t const * prev_bank_hash = fd_bank_bank_hash_query( bank );
1627 :
1628 0 : fd_hash_t * bank_hash = fd_bank_bank_hash_modify( bank );
1629 0 : fd_hashes_hash_bank(
1630 0 : lthash,
1631 0 : prev_bank_hash,
1632 0 : (fd_hash_t *)fd_bank_poh_query( bank )->hash,
1633 0 : 0UL,
1634 0 : bank_hash );
1635 :
1636 0 : fd_bank_lthash_end_locking_query( bank );
1637 :
1638 0 : return FD_RUNTIME_EXECUTE_SUCCESS;
1639 0 : }
1640 :
1641 : void
1642 : fd_runtime_read_genesis( fd_banks_t * banks,
1643 : fd_bank_t * bank,
1644 : fd_accdb_user_t * accdb,
1645 : fd_funk_txn_xid_t const * xid,
1646 : fd_capture_ctx_t * capture_ctx,
1647 : fd_hash_t const * genesis_hash,
1648 : fd_lthash_value_t const * genesis_lthash,
1649 : fd_genesis_t const * genesis_block,
1650 0 : fd_runtime_stack_t * runtime_stack ) {
1651 :
1652 0 : fd_lthash_value_t * lthash = fd_bank_lthash_locking_modify( bank );
1653 0 : *lthash = *genesis_lthash;
1654 0 : fd_bank_lthash_end_locking_modify( bank );
1655 :
1656 : /* Once the accounts have been loaded from the genesis config into
1657 : the accounts db, we can initialize the bank state. This involves
1658 : setting some fields, and notably setting up the vote and stake
1659 : caches which are used for leader scheduling/rewards. */
1660 :
1661 0 : fd_funk_t * funk = fd_accdb_user_v1_funk( accdb );
1662 0 : fd_runtime_init_bank_from_genesis( banks, bank, funk, xid, genesis_block, genesis_hash );
1663 :
1664 : /* Write the native programs to the accounts db. */
1665 :
1666 0 : for( ulong i=0UL; i<genesis_block->builtin_len; i++ ) {
1667 0 : fd_genesis_account_t * account = fd_type_pun( (uchar *)genesis_block + genesis_block->builtin_off[ i ] );
1668 :
1669 0 : fd_pubkey_t pubkey;
1670 0 : fd_memcpy( pubkey.uc, account->pubkey, sizeof(fd_pubkey_t) );
1671 0 : fd_write_builtin_account( bank, accdb, xid, capture_ctx, pubkey, (const char *)account->data, account->meta.dlen );
1672 0 : }
1673 :
1674 0 : fd_features_restore( bank, funk, xid );
1675 :
1676 : /* At this point, state related to the bank and the accounts db
1677 : have been initialized and we are free to finish executing the
1678 : block. In practice, this updates some bank fields (notably the
1679 : poh and bank hash). */
1680 :
1681 0 : int err = fd_runtime_process_genesis_block( bank, accdb, xid, capture_ctx, runtime_stack );
1682 0 : if( FD_UNLIKELY( err ) ) FD_LOG_CRIT(( "genesis slot 0 execute failed with error %d", err ));
1683 0 : }
1684 :
1685 : void
1686 : fd_runtime_block_execute_finalize( fd_bank_t * bank,
1687 : fd_accdb_user_t * accdb,
1688 0 : fd_capture_ctx_t * capture_ctx ) {
1689 :
1690 : /* This slot is now "frozen" and can't be changed anymore. */
1691 0 : fd_runtime_freeze( bank, accdb, capture_ctx );
1692 :
1693 0 : fd_runtime_update_bank_hash( bank, capture_ctx );
1694 0 : }
1695 :
1696 :
1697 : /* Mirrors Agave function solana_sdk::transaction_context::find_index_of_account
1698 :
1699 : Backward scan over transaction accounts.
1700 : Returns -1 if not found.
1701 :
1702 : https://github.com/anza-xyz/agave/blob/v2.1.14/sdk/src/transaction_context.rs#L233-L238 */
1703 :
1704 : int
1705 : fd_runtime_find_index_of_account( fd_txn_out_t const * txn_out,
1706 132 : fd_pubkey_t const * pubkey ) {
1707 312 : for( ulong i=txn_out->accounts.cnt; i>0UL; i-- ) {
1708 288 : if( 0==memcmp( pubkey, &txn_out->accounts.keys[ i-1UL ], sizeof(fd_pubkey_t) ) ) {
1709 108 : return (int)(i-1UL);
1710 108 : }
1711 288 : }
1712 24 : return -1;
1713 132 : }
1714 :
1715 : int
1716 : fd_runtime_get_account_at_index( fd_txn_in_t const * txn_in,
1717 : fd_txn_out_t * txn_out,
1718 : ushort idx,
1719 300 : fd_txn_account_condition_fn_t * condition ) {
1720 300 : if( FD_UNLIKELY( idx>=txn_out->accounts.cnt ) ) {
1721 0 : return FD_ACC_MGR_ERR_UNKNOWN_ACCOUNT;
1722 0 : }
1723 :
1724 300 : if( FD_LIKELY( condition != NULL ) ) {
1725 0 : if( FD_UNLIKELY( !condition( txn_in, txn_out, idx ) ) ) {
1726 0 : return FD_ACC_MGR_ERR_UNKNOWN_ACCOUNT;
1727 0 : }
1728 0 : }
1729 :
1730 300 : return FD_ACC_MGR_SUCCESS;
1731 300 : }
1732 :
1733 : int
1734 : fd_runtime_get_account_with_key( fd_txn_in_t const * txn_in,
1735 : fd_txn_out_t * txn_out,
1736 : fd_pubkey_t const * pubkey,
1737 : int * index_out,
1738 0 : fd_txn_account_condition_fn_t * condition ) {
1739 0 : int index = fd_runtime_find_index_of_account( txn_out, pubkey );
1740 0 : if( FD_UNLIKELY( index==-1 ) ) {
1741 0 : return FD_ACC_MGR_ERR_UNKNOWN_ACCOUNT;
1742 0 : }
1743 :
1744 0 : *index_out = index;
1745 :
1746 0 : return fd_runtime_get_account_at_index( txn_in,
1747 0 : txn_out,
1748 0 : (uchar)index,
1749 0 : condition );
1750 0 : }
1751 :
1752 : int
1753 : fd_runtime_get_executable_account( fd_runtime_t * runtime,
1754 : fd_txn_in_t const * txn_in,
1755 : fd_txn_out_t * txn_out,
1756 : fd_pubkey_t const * pubkey,
1757 0 : fd_account_meta_t const * * meta ) {
1758 : /* First try to fetch the executable account from the existing
1759 : borrowed accounts. If the pubkey is in the account keys, then we
1760 : want to re-use that borrowed account since it reflects changes from
1761 : prior instructions. Referencing the read-only executable accounts
1762 : list is incorrect behavior when the program data account is written
1763 : to in a prior instruction (e.g. program upgrade + invoke within the
1764 : same txn) */
1765 :
1766 0 : fd_txn_account_condition_fn_t * condition = fd_runtime_account_check_exists;
1767 :
1768 0 : int index;
1769 0 : int err = fd_runtime_get_account_with_key( txn_in,
1770 0 : txn_out,
1771 0 : pubkey,
1772 0 : &index,
1773 0 : condition );
1774 0 : if( FD_UNLIKELY( err==FD_ACC_MGR_SUCCESS ) ) {
1775 0 : *meta = txn_out->accounts.metas[index];
1776 0 : return FD_ACC_MGR_SUCCESS;
1777 0 : }
1778 :
1779 0 : for( ushort i=0; i<runtime->accounts.executable_cnt; i++ ) {
1780 0 : if( memcmp( pubkey->uc, runtime->accounts.executable_pubkeys[i].uc, sizeof(fd_pubkey_t) )==0 ) {
1781 0 : *meta = runtime->accounts.executables_meta[i];
1782 0 : if( FD_UNLIKELY( !fd_account_meta_exists( *meta ) ) ) {
1783 0 : return FD_ACC_MGR_ERR_UNKNOWN_ACCOUNT;
1784 0 : }
1785 0 : return FD_ACC_MGR_SUCCESS;
1786 0 : }
1787 0 : }
1788 :
1789 0 : return FD_ACC_MGR_ERR_UNKNOWN_ACCOUNT;
1790 0 : }
1791 :
1792 : int
1793 : fd_runtime_get_key_of_account_at_index( fd_txn_out_t * txn_out,
1794 : ushort idx,
1795 264 : fd_pubkey_t const * * key ) {
1796 : /* Return a NotEnoughAccountKeys error if idx is out of bounds.
1797 : https://github.com/anza-xyz/agave/blob/v2.1.14/sdk/src/transaction_context.rs#L218 */
1798 264 : if( FD_UNLIKELY( idx>=txn_out->accounts.cnt ) ) {
1799 0 : return FD_EXECUTOR_INSTR_ERR_MISSING_ACC;
1800 0 : }
1801 :
1802 264 : *key = &txn_out->accounts.keys[ idx ];
1803 264 : return FD_EXECUTOR_INSTR_SUCCESS;
1804 264 : }
1805 :
1806 : /* https://github.com/anza-xyz/agave/blob/v2.1.1/sdk/program/src/message/versions/v0/loaded.rs#L162 */
1807 : int
1808 : fd_txn_account_is_demotion( const int idx,
1809 : const fd_txn_t * txn_descriptor,
1810 0 : const uint bpf_upgradeable_in_txn ) {
1811 0 : uint is_program = 0U;
1812 0 : for( ulong j=0UL; j<txn_descriptor->instr_cnt; j++ ) {
1813 0 : if( txn_descriptor->instr[j].program_id == idx ) {
1814 0 : is_program = 1U;
1815 0 : break;
1816 0 : }
1817 0 : }
1818 :
1819 0 : return (is_program && !bpf_upgradeable_in_txn);
1820 0 : }
1821 :
1822 : uint
1823 : fd_txn_account_has_bpf_loader_upgradeable( const fd_pubkey_t * account_keys,
1824 0 : const ulong accounts_cnt ) {
1825 0 : for( ulong j=0; j<accounts_cnt; j++ ) {
1826 0 : const fd_pubkey_t * acc = &account_keys[j];
1827 0 : if ( memcmp( acc->uc, fd_solana_bpf_loader_upgradeable_program_id.key, sizeof(fd_pubkey_t) ) == 0 ) {
1828 0 : return 1U;
1829 0 : }
1830 0 : }
1831 0 : return 0U;
1832 0 : }
1833 :
1834 : static inline int
1835 : fd_runtime_account_is_writable_idx_flat( const ulong slot,
1836 : const ushort idx,
1837 : const fd_pubkey_t * addr_at_idx,
1838 : const fd_txn_t * txn_descriptor,
1839 : const fd_features_t * features,
1840 0 : const uint bpf_upgradeable_in_txn ) {
1841 : /* https://github.com/anza-xyz/agave/blob/v2.1.11/sdk/program/src/message/sanitized.rs#L43 */
1842 0 : if( !fd_txn_is_writable( txn_descriptor, idx ) ) {
1843 0 : return 0;
1844 0 : }
1845 :
1846 : /* See comments in fd_system_ids.h.
1847 : https://github.com/anza-xyz/agave/blob/v2.1.11/sdk/program/src/message/sanitized.rs#L44 */
1848 0 : if( fd_pubkey_is_active_reserved_key( addr_at_idx ) ||
1849 0 : fd_pubkey_is_pending_reserved_key( addr_at_idx ) ||
1850 0 : ( FD_FEATURE_ACTIVE( slot, features, enable_secp256r1_precompile ) &&
1851 0 : fd_pubkey_is_secp256r1_key( addr_at_idx ) ) ) {
1852 :
1853 0 : return 0;
1854 0 : }
1855 :
1856 0 : if( fd_txn_account_is_demotion( idx, txn_descriptor, bpf_upgradeable_in_txn ) ) {
1857 0 : return 0;
1858 0 : }
1859 :
1860 0 : return 1;
1861 0 : }
1862 :
1863 :
1864 : /* This function aims to mimic the writable accounts check to populate the writable accounts cache, used
1865 : to determine if accounts are writable or not.
1866 :
1867 : https://github.com/anza-xyz/agave/blob/v2.1.11/sdk/program/src/message/sanitized.rs#L38-L47 */
1868 : int
1869 : fd_runtime_account_is_writable_idx( fd_txn_in_t const * txn_in,
1870 : fd_txn_out_t const * txn_out,
1871 : fd_bank_t * bank,
1872 0 : ushort idx ) {
1873 0 : uint bpf_upgradeable = fd_txn_account_has_bpf_loader_upgradeable( txn_out->accounts.keys, txn_out->accounts.cnt );
1874 0 : return fd_runtime_account_is_writable_idx_flat( fd_bank_slot_get( bank ),
1875 0 : idx,
1876 0 : &txn_out->accounts.keys[idx],
1877 0 : TXN( txn_in->txn ),
1878 0 : fd_bank_features_query( bank ),
1879 0 : bpf_upgradeable );
1880 0 : }
1881 :
1882 : /* Account pre-condition filtering functions */
1883 :
1884 : int
1885 : fd_runtime_account_check_exists( fd_txn_in_t const * txn_in,
1886 : fd_txn_out_t * txn_out,
1887 0 : ushort idx ) {
1888 0 : (void) txn_in;
1889 0 : return fd_account_meta_exists( txn_out->accounts.metas[idx] );
1890 0 : }
1891 :
1892 : int
1893 : fd_runtime_account_check_fee_payer_writable( fd_txn_in_t const * txn_in,
1894 : fd_txn_out_t * txn_out,
1895 0 : ushort idx ) {
1896 0 : (void) txn_out;
1897 0 : return fd_txn_is_writable( TXN( txn_in->txn ), idx );
1898 0 : }
1899 :
1900 :
1901 : int
1902 0 : fd_account_meta_checked_sub_lamports( fd_account_meta_t * meta, ulong lamports ) {
1903 0 : ulong balance_post = 0UL;
1904 0 : int err = fd_ulong_checked_sub( meta->lamports,
1905 0 : lamports,
1906 0 : &balance_post );
1907 0 : if( FD_UNLIKELY( err ) ) {
1908 0 : return FD_EXECUTOR_INSTR_ERR_ARITHMETIC_OVERFLOW;
1909 0 : }
1910 :
1911 0 : meta->lamports = balance_post;
1912 0 : return FD_EXECUTOR_INSTR_SUCCESS;
1913 0 : }
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