Line data Source code
1 : #include "fd_executor.h"
2 : #include "fd_acc_mgr.h"
3 : #include "fd_bank.h"
4 : #include "fd_runtime.h"
5 : #include "fd_runtime_err.h"
6 :
7 : #include "fd_system_ids.h"
8 : #include "program/fd_address_lookup_table_program.h"
9 : #include "program/fd_bpf_loader_program.h"
10 : #include "program/fd_loader_v4_program.h"
11 : #include "program/fd_compute_budget_program.h"
12 : #include "program/fd_config_program.h"
13 : #include "program/fd_precompiles.h"
14 : #include "program/fd_stake_program.h"
15 : #include "program/fd_system_program.h"
16 : #include "program/fd_builtin_programs.h"
17 : #include "program/fd_vote_program.h"
18 : #include "program/fd_zk_elgamal_proof_program.h"
19 : #include "sysvar/fd_sysvar_cache.h"
20 : #include "sysvar/fd_sysvar_epoch_schedule.h"
21 : #include "sysvar/fd_sysvar_instructions.h"
22 : #include "sysvar/fd_sysvar_rent.h"
23 : #include "sysvar/fd_sysvar_slot_history.h"
24 : #include "tests/fd_dump_pb.h"
25 :
26 : #include "../log_collector/fd_log_collector.h"
27 : #include "../types/fd_types_yaml.h"
28 :
29 : #include "../../ballet/base58/fd_base58.h"
30 :
31 : #include "../../util/bits/fd_uwide.h"
32 :
33 : #include <assert.h>
34 : #include <math.h>
35 : #include <stdio.h> /* snprintf(3) */
36 : #include <fcntl.h> /* openat(2) */
37 : #include <unistd.h> /* write(3) */
38 : #include <time.h>
39 :
40 : struct fd_native_prog_info {
41 : fd_pubkey_t key;
42 : fd_exec_instr_fn_t fn;
43 : uchar is_bpf_loader;
44 : ulong feature_enable_offset; /* offset to the feature that enables this program, if any */
45 : };
46 : typedef struct fd_native_prog_info fd_native_prog_info_t;
47 :
48 : /* https://github.com/anza-xyz/agave/blob/v2.2.13/svm-rent-collector/src/rent_state.rs#L5-L15 */
49 : struct fd_rent_state {
50 : uint discriminant;
51 : ulong lamports;
52 : ulong data_size;
53 : };
54 : typedef struct fd_rent_state fd_rent_state_t;
55 :
56 0 : #define FD_RENT_STATE_UNINITIALIZED (0U)
57 0 : #define FD_RENT_STATE_RENT_PAYING (1U)
58 0 : #define FD_RENT_STATE_RENT_EXEMPT (2U)
59 :
60 : #define MAP_PERFECT_NAME fd_native_program_fn_lookup_tbl
61 : #define MAP_PERFECT_LG_TBL_SZ 4
62 : #define MAP_PERFECT_T fd_native_prog_info_t
63 0 : #define MAP_PERFECT_HASH_C 478U
64 : #define MAP_PERFECT_KEY key.uc
65 : #define MAP_PERFECT_KEY_T fd_pubkey_t const *
66 : #define MAP_PERFECT_ZERO_KEY (0,0,0,0, 0,0,0,0, 0,0,0,0, 0,0,0,0, 0,0,0,0, 0,0,0,0, 0,0,0,0, 0,0,0,0)
67 : #define MAP_PERFECT_COMPLEX_KEY 1
68 0 : #define MAP_PERFECT_KEYS_EQUAL(k1,k2) (!memcmp( (k1), (k2), 32UL ))
69 :
70 0 : #define PERFECT_HASH( u ) (((MAP_PERFECT_HASH_C*(u))>>28)&0xFU)
71 :
72 : #define MAP_PERFECT_HASH_PP( a00,a01,a02,a03,a04,a05,a06,a07,a08,a09,a10,a11,a12,a13,a14,a15, \
73 : a16,a17,a18,a19,a20,a21,a22,a23,a24,a25,a26,a27,a28,a29,a30,a31) \
74 : PERFECT_HASH( (a08 | (a09<<8) | (a10<<16) | (a11<<24)) )
75 0 : #define MAP_PERFECT_HASH_R( ptr ) PERFECT_HASH( fd_uint_load_4( (uchar const *)ptr + 8UL ) )
76 :
77 : #define MAP_PERFECT_0 ( VOTE_PROG_ID ), .fn = fd_vote_program_execute, .is_bpf_loader = 0, .feature_enable_offset = ULONG_MAX
78 : #define MAP_PERFECT_1 ( SYS_PROG_ID ), .fn = fd_system_program_execute, .is_bpf_loader = 0, .feature_enable_offset = ULONG_MAX
79 : #define MAP_PERFECT_2 ( CONFIG_PROG_ID ), .fn = fd_config_program_execute, .is_bpf_loader = 0, .feature_enable_offset = ULONG_MAX
80 : #define MAP_PERFECT_3 ( STAKE_PROG_ID ), .fn = fd_stake_program_execute, .is_bpf_loader = 0, .feature_enable_offset = ULONG_MAX
81 : #define MAP_PERFECT_4 ( COMPUTE_BUDGET_PROG_ID ), .fn = fd_compute_budget_program_execute, .is_bpf_loader = 0, .feature_enable_offset = ULONG_MAX
82 : #define MAP_PERFECT_5 ( ADDR_LUT_PROG_ID ), .fn = fd_address_lookup_table_program_execute, .is_bpf_loader = 0, .feature_enable_offset = ULONG_MAX
83 : #define MAP_PERFECT_6 ( ZK_EL_GAMAL_PROG_ID ), .fn = fd_executor_zk_elgamal_proof_program_execute, .is_bpf_loader = 0, .feature_enable_offset = ULONG_MAX
84 : #define MAP_PERFECT_7 ( BPF_LOADER_1_PROG_ID ), .fn = fd_bpf_loader_program_execute, .is_bpf_loader = 1, .feature_enable_offset = ULONG_MAX
85 : #define MAP_PERFECT_8 ( BPF_LOADER_2_PROG_ID ), .fn = fd_bpf_loader_program_execute, .is_bpf_loader = 1, .feature_enable_offset = ULONG_MAX
86 : #define MAP_PERFECT_9 ( BPF_UPGRADEABLE_PROG_ID ), .fn = fd_bpf_loader_program_execute, .is_bpf_loader = 1, .feature_enable_offset = ULONG_MAX
87 : #define MAP_PERFECT_10 ( LOADER_V4_PROG_ID ), .fn = fd_loader_v4_program_execute, .is_bpf_loader = 1, .feature_enable_offset = offsetof( fd_features_t, enable_loader_v4 )
88 :
89 : #include "../../util/tmpl/fd_map_perfect.c"
90 : #undef PERFECT_HASH
91 :
92 : #define MAP_PERFECT_NAME fd_native_precompile_program_fn_lookup_tbl
93 : #define MAP_PERFECT_LG_TBL_SZ 2
94 : #define MAP_PERFECT_T fd_native_prog_info_t
95 0 : #define MAP_PERFECT_HASH_C 63546U
96 : #define MAP_PERFECT_KEY key.uc
97 : #define MAP_PERFECT_KEY_T fd_pubkey_t const *
98 : #define MAP_PERFECT_ZERO_KEY (0,0,0,0, 0,0,0,0, 0,0,0,0, 0,0,0,0, 0,0,0,0, 0,0,0,0, 0,0,0,0, 0,0,0,0)
99 : #define MAP_PERFECT_COMPLEX_KEY 1
100 0 : #define MAP_PERFECT_KEYS_EQUAL(k1,k2) (!memcmp( (k1), (k2), 32UL ))
101 :
102 0 : #define PERFECT_HASH( u ) (((MAP_PERFECT_HASH_C*(u))>>30)&0x3U)
103 :
104 : #define MAP_PERFECT_HASH_PP( a00,a01,a02,a03,a04,a05,a06,a07,a08,a09,a10,a11,a12,a13,a14,a15, \
105 : a16,a17,a18,a19,a20,a21,a22,a23,a24,a25,a26,a27,a28,a29,a30,a31) \
106 : PERFECT_HASH( (a00 | (a01<<8)) )
107 0 : #define MAP_PERFECT_HASH_R( ptr ) PERFECT_HASH( fd_uint_load_2( (uchar const *)ptr ) )
108 :
109 : #define MAP_PERFECT_0 ( ED25519_SV_PROG_ID ), .fn = fd_precompile_ed25519_verify
110 : #define MAP_PERFECT_1 ( KECCAK_SECP_PROG_ID ), .fn = fd_precompile_secp256k1_verify
111 : #define MAP_PERFECT_2 ( SECP256R1_PROG_ID ), .fn = fd_precompile_secp256r1_verify
112 :
113 : #include "../../util/tmpl/fd_map_perfect.c"
114 : #undef PERFECT_HASH
115 :
116 : fd_exec_instr_fn_t
117 0 : fd_executor_lookup_native_precompile_program( fd_txn_account_t const * prog_acc ) {
118 0 : fd_pubkey_t const * pubkey = prog_acc->pubkey;
119 0 : const fd_native_prog_info_t null_function = {0};
120 0 : return fd_native_precompile_program_fn_lookup_tbl_query( pubkey, &null_function )->fn;
121 0 : }
122 :
123 : uchar
124 0 : fd_executor_pubkey_is_bpf_loader( fd_pubkey_t const * pubkey ) {
125 0 : fd_native_prog_info_t const null_function = {0};
126 0 : return fd_native_program_fn_lookup_tbl_query( pubkey, &null_function )->is_bpf_loader;
127 0 : }
128 :
129 : uchar
130 : fd_executor_program_is_active( fd_bank_t * bank,
131 0 : fd_pubkey_t const * pubkey ) {
132 0 : fd_native_prog_info_t const null_function = {0};
133 0 : ulong feature_offset = fd_native_program_fn_lookup_tbl_query( pubkey, &null_function )->feature_enable_offset;
134 :
135 0 : return feature_offset==ULONG_MAX ||
136 0 : FD_FEATURE_ACTIVE_BANK_OFFSET( bank, feature_offset );
137 0 : }
138 :
139 : /* fd_executor_lookup_native_program returns the appropriate instruction processor for the given
140 : native program ID. Returns NULL if given ID is not a recognized native program.
141 : https://github.com/anza-xyz/agave/blob/v2.2.6/program-runtime/src/invoke_context.rs#L520-L544 */
142 : static int
143 : fd_executor_lookup_native_program( fd_txn_account_t const * prog_acc,
144 : fd_bank_t * bank,
145 : fd_exec_instr_fn_t * native_prog_fn,
146 0 : uchar * is_precompile ) {
147 : /* First lookup to see if the program key is a precompile */
148 0 : *is_precompile = 0;
149 0 : *native_prog_fn = fd_executor_lookup_native_precompile_program( prog_acc );
150 0 : if( FD_UNLIKELY( *native_prog_fn!=NULL ) ) {
151 0 : *is_precompile = 1;
152 0 : return 0;
153 0 : }
154 :
155 0 : fd_pubkey_t const * pubkey = prog_acc->pubkey;
156 0 : fd_pubkey_t const * owner = fd_txn_account_get_owner( prog_acc );
157 :
158 : /* Native programs should be owned by the native loader...
159 : This will not be the case though once core programs are migrated to BPF. */
160 0 : int is_native_program = !memcmp( owner, fd_solana_native_loader_id.key, sizeof(fd_pubkey_t) );
161 :
162 0 : if( !is_native_program ) {
163 0 : if( FD_UNLIKELY( !fd_executor_pubkey_is_bpf_loader( owner ) ) ) {
164 0 : return FD_EXECUTOR_INSTR_ERR_UNSUPPORTED_PROGRAM_ID;
165 0 : }
166 0 : }
167 :
168 0 : fd_pubkey_t const * lookup_pubkey = is_native_program ? pubkey : owner;
169 :
170 : /* Migrated programs must be executed via the corresponding BPF
171 : loader(s), not natively. This check is performed at the transaction
172 : level, but we re-check to please the instruction level (and below)
173 : fuzzers. */
174 0 : uchar has_migrated;
175 0 : if( FD_UNLIKELY( fd_is_migrating_builtin_program( bank, lookup_pubkey, &has_migrated ) && has_migrated ) ) {
176 0 : *native_prog_fn = NULL;
177 0 : return FD_EXECUTOR_INSTR_ERR_UNSUPPORTED_PROGRAM_ID;
178 0 : }
179 :
180 : /* We perform feature gate checks here to emulate the absence of
181 : a native program in Agave's ProgramCache when the program's feature
182 : gate is not activated.
183 : https://github.com/anza-xyz/agave/blob/v3.0.3/program-runtime/src/invoke_context.rs#L546-L549 */
184 :
185 0 : if( FD_UNLIKELY( !fd_executor_program_is_active( bank, lookup_pubkey ) ) ) {
186 0 : *native_prog_fn = NULL;
187 0 : return FD_EXECUTOR_INSTR_ERR_UNSUPPORTED_PROGRAM_ID;
188 0 : }
189 :
190 0 : fd_native_prog_info_t const null_function = {0};
191 0 : *native_prog_fn = fd_native_program_fn_lookup_tbl_query( lookup_pubkey, &null_function )->fn;
192 0 : return 0;
193 0 : }
194 :
195 : /* https://github.com/anza-xyz/agave/blob/v2.2.13/svm-rent-collector/src/svm_rent_collector.rs#L117-L136 */
196 : static uchar
197 : fd_executor_rent_transition_allowed( fd_rent_state_t const * pre_rent_state,
198 0 : fd_rent_state_t const * post_rent_state ) {
199 0 : switch( post_rent_state->discriminant ) {
200 0 : case FD_RENT_STATE_UNINITIALIZED:
201 0 : case FD_RENT_STATE_RENT_EXEMPT: {
202 0 : return 1;
203 0 : }
204 0 : case FD_RENT_STATE_RENT_PAYING: {
205 0 : switch( pre_rent_state->discriminant ) {
206 0 : case FD_RENT_STATE_UNINITIALIZED:
207 0 : case FD_RENT_STATE_RENT_EXEMPT: {
208 0 : return 0;
209 0 : }
210 0 : case FD_RENT_STATE_RENT_PAYING: {
211 0 : return post_rent_state->data_size==pre_rent_state->data_size &&
212 0 : post_rent_state->lamports<=pre_rent_state->lamports;
213 0 : }
214 0 : default: {
215 0 : __builtin_unreachable();
216 0 : }
217 0 : }
218 0 : }
219 0 : default: {
220 0 : __builtin_unreachable();
221 0 : }
222 0 : }
223 0 : }
224 :
225 : /* https://github.com/anza-xyz/agave/blob/v2.2.13/svm-rent-collector/src/svm_rent_collector.rs#L61-L77 */
226 : static int
227 : fd_executor_check_rent_state_with_account( fd_txn_account_t const * account,
228 : fd_rent_state_t const * pre_rent_state,
229 0 : fd_rent_state_t const * post_rent_state ) {
230 0 : if( FD_UNLIKELY( memcmp( account->pubkey->key, fd_sysvar_incinerator_id.key, sizeof(fd_pubkey_t) ) &&
231 0 : !fd_executor_rent_transition_allowed( pre_rent_state, post_rent_state ) ) ) {
232 0 : return FD_RUNTIME_TXN_ERR_INSUFFICIENT_FUNDS_FOR_RENT;
233 0 : }
234 0 : return FD_RUNTIME_EXECUTE_SUCCESS;
235 0 : }
236 :
237 : /* https://github.com/anza-xyz/agave/blob/v2.2.13/svm-rent-collector/src/svm_rent_collector.rs#L87-L101 */
238 : fd_rent_state_t
239 0 : fd_executor_get_account_rent_state( fd_txn_account_t const * account, fd_rent_t const * rent ) {
240 : /* https://github.com/anza-xyz/agave/blob/v2.2.13/svm-rent-collector/src/svm_rent_collector.rs#L88-L89 */
241 0 : if( fd_txn_account_get_lamports( account )==0UL ) {
242 0 : return (fd_rent_state_t){
243 0 : .discriminant = FD_RENT_STATE_UNINITIALIZED
244 0 : };
245 0 : }
246 :
247 : /* https://github.com/anza-xyz/agave/blob/v2.2.13/svm-rent-collector/src/svm_rent_collector.rs#L90-L94 */
248 0 : if( fd_txn_account_get_lamports( account )>=fd_rent_exempt_minimum_balance( rent, fd_txn_account_get_data_len( account ) ) ) {
249 0 : return (fd_rent_state_t){
250 0 : .discriminant = FD_RENT_STATE_RENT_EXEMPT
251 0 : };
252 0 : }
253 :
254 : /* https://github.com/anza-xyz/agave/blob/v2.2.13/svm-rent-collector/src/svm_rent_collector.rs#L95-L99 */
255 0 : return (fd_rent_state_t){
256 0 : .discriminant = FD_RENT_STATE_RENT_PAYING,
257 0 : .lamports = fd_txn_account_get_lamports( account ),
258 0 : .data_size = fd_txn_account_get_data_len( account )
259 0 : };
260 0 : }
261 :
262 : /* https://github.com/anza-xyz/agave/blob/v2.2.13/svm/src/account_loader.rs#L293-L342 */
263 : static int
264 : fd_validate_fee_payer( fd_txn_account_t * account,
265 : fd_rent_t const * rent,
266 0 : ulong fee ) {
267 : /* https://github.com/anza-xyz/agave/blob/v2.2.13/svm/src/account_loader.rs#L301-L304 */
268 0 : if( FD_UNLIKELY( fd_txn_account_get_lamports( account )==0UL ) ) {
269 0 : FD_LOG_DEBUG(( "Fee payer doesn't exist %s", FD_BASE58_ENC_32_ALLOCA( account->pubkey ) ));
270 0 : return FD_RUNTIME_TXN_ERR_ACCOUNT_NOT_FOUND;
271 0 : }
272 :
273 : /* https://github.com/anza-xyz/agave/blob/v2.2.13/svm/src/account_loader.rs#L305-L308 */
274 0 : int system_account_kind = fd_get_system_account_kind( account );
275 0 : if( FD_UNLIKELY( system_account_kind==FD_SYSTEM_PROGRAM_NONCE_ACCOUNT_KIND_UNKNOWN ) ) {
276 0 : return FD_RUNTIME_TXN_ERR_INVALID_ACCOUNT_FOR_FEE;
277 0 : }
278 :
279 : /* https://github.com/anza-xyz/agave/blob/v2.2.13/svm/src/account_loader.rs#L309-L318 */
280 0 : ulong min_balance = 0UL;
281 0 : if( system_account_kind==FD_SYSTEM_PROGRAM_NONCE_ACCOUNT_KIND_NONCE ) {
282 0 : min_balance = fd_rent_exempt_minimum_balance( rent, FD_SYSTEM_PROGRAM_NONCE_DLEN );
283 0 : }
284 :
285 : /* https://github.com/anza-xyz/agave/blob/v2.2.13/svm/src/account_loader.rs#L320-L327 */
286 0 : if( FD_UNLIKELY( min_balance>fd_txn_account_get_lamports( account ) ||
287 0 : fee>fd_txn_account_get_lamports( account )-min_balance ) ) {
288 0 : return FD_RUNTIME_TXN_ERR_INSUFFICIENT_FUNDS_FOR_FEE;
289 0 : }
290 :
291 : /* https://github.com/anza-xyz/agave/blob/v2.2.13/svm/src/account_loader.rs#L329 */
292 0 : fd_rent_state_t payer_pre_rent_state = fd_executor_get_account_rent_state( account, rent );
293 :
294 : /* https://github.com/anza-xyz/agave/blob/v2.2.13/svm/src/account_loader.rs#L330-L332 */
295 0 : int err = fd_txn_account_checked_sub_lamports( account, fee );
296 0 : if( FD_UNLIKELY( err!=FD_EXECUTOR_INSTR_SUCCESS ) ) {
297 0 : return FD_RUNTIME_TXN_ERR_INSUFFICIENT_FUNDS_FOR_FEE;
298 0 : }
299 :
300 : /* https://github.com/anza-xyz/agave/blob/v2.2.13/svm/src/account_loader.rs#L334 */
301 0 : fd_rent_state_t payer_post_rent_state = fd_executor_get_account_rent_state( account, rent );
302 :
303 : /* https://github.com/anza-xyz/agave/blob/v2.2.13/svm/src/account_loader.rs#L335-L342 */
304 0 : return fd_executor_check_rent_state_with_account( account, &payer_pre_rent_state, &payer_post_rent_state );
305 0 : }
306 :
307 : static int
308 : fd_executor_check_status_cache( fd_txncache_t * status_cache,
309 : fd_bank_t * bank,
310 : fd_txn_in_t const * txn_in,
311 0 : fd_txn_out_t * txn_out ) {
312 0 : if( FD_UNLIKELY( !status_cache ) ) {
313 0 : return FD_RUNTIME_EXECUTE_SUCCESS;
314 0 : }
315 :
316 0 : if( FD_UNLIKELY( txn_out->accounts.nonce_idx_in_txn!=ULONG_MAX ) ) {
317 : /* In Agave, durable nonce transactions are inserted to the status
318 : cache the same as any others, but this is only to serve RPC
319 : requests, they do not need to be in there for correctness as the
320 : nonce mechanism itself prevents double spend. We skip this logic
321 : entirely to simplify and improve performance of the txn cache. */
322 0 : return FD_RUNTIME_EXECUTE_SUCCESS;
323 0 : }
324 :
325 : /* Compute the blake3 hash of the transaction message
326 : https://github.com/anza-xyz/agave/blob/v2.1.7/sdk/program/src/message/versions/mod.rs#L159-L167 */
327 0 : fd_blake3_t b3[1];
328 0 : fd_blake3_init( b3 );
329 0 : fd_blake3_append( b3, "solana-tx-message-v1", 20UL );
330 0 : fd_blake3_append( b3, ((uchar *)txn_in->txn->payload + TXN( txn_in->txn )->message_off),(ulong)( txn_in->txn->payload_sz - TXN( txn_in->txn )->message_off ) );
331 0 : fd_blake3_fini( b3, &txn_out->details.blake_txn_msg_hash );
332 :
333 0 : fd_hash_t * blockhash = (fd_hash_t *)((uchar *)txn_in->txn->payload + TXN( txn_in->txn )->recent_blockhash_off);
334 0 : int found = fd_txncache_query( status_cache, bank->txncache_fork_id, blockhash->uc, txn_out->details.blake_txn_msg_hash.uc );
335 0 : if( FD_UNLIKELY( found ) ) return FD_RUNTIME_TXN_ERR_ALREADY_PROCESSED;
336 :
337 0 : return FD_RUNTIME_EXECUTE_SUCCESS;
338 0 : }
339 :
340 : /* https://github.com/anza-xyz/agave/blob/v2.3.1/runtime/src/bank/check_transactions.rs#L77-L141 */
341 : static int
342 : fd_executor_check_transaction_age_and_compute_budget_limits( fd_runtime_t * runtime,
343 : fd_bank_t * bank,
344 : fd_txn_in_t const * txn_in,
345 0 : fd_txn_out_t * txn_out ) {
346 : /* Note that in Agave, although this function is called after the
347 : compute budget limits are sanitized, if the transaction age checks
348 : fail, then we return the transaction age error instead of the
349 : compute budget error.
350 : https://github.com/anza-xyz/agave/blob/v2.3.1/runtime/src/bank/check_transactions.rs#L128-L136 */
351 0 : int err = fd_check_transaction_age( runtime, bank, txn_in, txn_out );
352 0 : if( FD_UNLIKELY( err!=FD_RUNTIME_EXECUTE_SUCCESS ) ) {
353 0 : return err;
354 0 : }
355 :
356 : /* https://github.com/anza-xyz/agave/blob/v2.3.1/runtime/src/bank/check_transactions.rs#L103 */
357 0 : err = fd_sanitize_compute_unit_limits( txn_out );
358 0 : if( FD_UNLIKELY( err!=FD_RUNTIME_EXECUTE_SUCCESS ) ) {
359 0 : return err;
360 0 : }
361 :
362 0 : return FD_RUNTIME_EXECUTE_SUCCESS;
363 0 : }
364 :
365 : /* https://github.com/anza-xyz/agave/blob/v2.0.9/runtime/src/bank.rs#L3239-L3251 */
366 : static inline ulong
367 0 : get_transaction_account_lock_limit( fd_bank_t * bank ) {
368 0 : return fd_ulong_if( FD_FEATURE_ACTIVE_BANK( bank, increase_tx_account_lock_limit ), MAX_TX_ACCOUNT_LOCKS, 64UL );
369 0 : }
370 :
371 : /* https://github.com/anza-xyz/agave/blob/v2.3.1/runtime/src/bank/check_transactions.rs#L61-L75 */
372 : int
373 : fd_executor_check_transactions( fd_runtime_t * runtime,
374 : fd_bank_t * bank,
375 : fd_txn_in_t const * txn_in,
376 0 : fd_txn_out_t * txn_out ) {
377 : /* https://github.com/anza-xyz/agave/blob/v2.3.1/runtime/src/bank/check_transactions.rs#L68-L73 */
378 0 : int err = fd_executor_check_transaction_age_and_compute_budget_limits( runtime, bank, txn_in, txn_out );
379 0 : if( FD_UNLIKELY( err!=FD_RUNTIME_EXECUTE_SUCCESS ) ) {
380 0 : return err;
381 0 : }
382 :
383 : /* https://github.com/anza-xyz/agave/blob/v2.3.1/runtime/src/bank/check_transactions.rs#L74 */
384 0 : err = fd_executor_check_status_cache( runtime->status_cache, bank, txn_in, txn_out );
385 0 : if( FD_UNLIKELY( err!=FD_RUNTIME_EXECUTE_SUCCESS ) ) {
386 0 : return err;
387 0 : }
388 :
389 0 : return FD_RUNTIME_EXECUTE_SUCCESS;
390 0 : }
391 :
392 : /* `verify_transaction()` is the first function called in the
393 : transaction execution pipeline. It is responsible for deserializing
394 : the transaction, verifying the message hash (sigverify), verifying
395 : the precompiles, and processing compute budget instructions. We
396 : leave sigverify out for now to easily bypass this function's
397 : checks for fuzzing.
398 :
399 : TODO: Maybe support adding sigverify in here, and toggling it
400 : on/off with a flag.
401 :
402 : https://github.com/anza-xyz/agave/blob/v2.3.1/runtime/src/bank.rs#L5725-L5753 */
403 : int
404 : fd_executor_verify_transaction( fd_bank_t * bank,
405 : fd_txn_in_t const * txn_in,
406 0 : fd_txn_out_t * txn_out ) {
407 0 : int err = FD_RUNTIME_EXECUTE_SUCCESS;
408 :
409 : /* https://github.com/anza-xyz/agave/blob/v2.2.13/svm/src/transaction_processor.rs#L566-L569 */
410 0 : err = fd_executor_compute_budget_program_execute_instructions( bank, txn_in, txn_out );
411 0 : if( FD_UNLIKELY( err ) ) return err;
412 :
413 0 : return FD_RUNTIME_EXECUTE_SUCCESS;
414 0 : }
415 :
416 : /* https://github.com/anza-xyz/agave/blob/v2.0.9/svm/src/account_loader.rs#L410-427 */
417 : static int
418 : accumulate_and_check_loaded_account_data_size( ulong acc_size,
419 : ulong requested_loaded_accounts_data_size,
420 0 : ulong * accumulated_account_size ) {
421 0 : *accumulated_account_size = fd_ulong_sat_add( *accumulated_account_size, acc_size );
422 0 : if( FD_UNLIKELY( *accumulated_account_size>requested_loaded_accounts_data_size ) ) {
423 0 : return FD_RUNTIME_TXN_ERR_MAX_LOADED_ACCOUNTS_DATA_SIZE_EXCEEDED;
424 0 : }
425 0 : return FD_RUNTIME_EXECUTE_SUCCESS;
426 0 : }
427 :
428 : /* This function contains special casing for loading and collecting rent from
429 : each transaction account. The logic is as follows:
430 : 1. If the account is the instructions sysvar, then load in the compiled
431 : instructions from the transactions into the sysvar's data.
432 : 2. If the account is a fee payer, then it is already loaded.
433 : 3. Otherwise load in the account from the accounts DB. If the account is
434 : writable and exists, try to collect rent from it.
435 :
436 : Returns the loaded transaction account size, which is the value that
437 : must be used when accumulating and checking against the
438 : transactions's loaded account data size limit.
439 :
440 : Agave relies on this function to actually load accounts from their
441 : accounts db. However, since our accounts model is slightly different,
442 : our account loading logic is handled earlier in the transaction
443 : execution pipeline within `fd_executor_setup_accounts_for_txn()`.
444 : Therefore, the name of this function is slightly misleading - we
445 : don't actually load accounts here, but we still need to collect
446 : rent from writable accounts and accumulate the transaction's
447 : total loaded account size.
448 :
449 : https://github.com/anza-xyz/agave/blob/v2.3.1/svm/src/account_loader.rs#L199-L228 */
450 : static ulong
451 : load_transaction_account( fd_bank_t * bank,
452 : fd_txn_in_t const * txn_in,
453 : fd_txn_out_t * txn_out,
454 : fd_txn_account_t * acct,
455 : uchar is_writable,
456 : uchar unknown_acc,
457 0 : ulong txn_idx ) {
458 :
459 : /* Handling the sysvar instructions account explictly.
460 : https://github.com/anza-xyz/agave/blob/v2.3.1/svm/src/account_loader.rs#L817-L824 */
461 0 : if( FD_UNLIKELY( !memcmp( acct->pubkey->key, fd_sysvar_instructions_id.key, sizeof(fd_pubkey_t) ) ) ) {
462 : /* The sysvar instructions account cannot be "loaded" since it's
463 : constructed by the SVM and modified within each transaction's
464 : instruction execution only, so it incurs a loaded size cost
465 : of 0. */
466 0 : fd_sysvar_instructions_serialize_account( bank, txn_in, txn_out, txn_idx );
467 0 : return 0UL;
468 0 : }
469 :
470 : /* This next block calls `account_loader::load_transaction_account()`
471 : which loads the account from the accounts db. If the account exists
472 : and is writable, collect rent from it.
473 :
474 : https://github.com/anza-xyz/agave/blob/v2.3.1/svm/src/account_loader.rs#L828-L835 */
475 0 : if( FD_LIKELY( !unknown_acc ) ) {
476 : /* SIMD-0186 introduces a base account size of 64 bytes for all
477 : transaction counts that exist prior to the transaction's
478 : execution.
479 :
480 : https://github.com/anza-xyz/agave/blob/v2.3.1/svm/src/account_loader.rs#L204-L208 */
481 0 : ulong base_account_size = FD_FEATURE_ACTIVE_BANK( bank, formalize_loaded_transaction_data_size ) ? FD_TRANSACTION_ACCOUNT_BASE_SIZE : 0UL;
482 :
483 : /* https://github.com/anza-xyz/agave/blob/v2.3.1/svm/src/account_loader.rs#L828-L835 */
484 0 : if( is_writable ) {
485 0 : acct->starting_lamports = fd_txn_account_get_lamports( acct ); /* TODO: why do we do this everywhere? */
486 0 : }
487 0 : return fd_ulong_sat_add( base_account_size, fd_txn_account_get_data_len( acct ) );
488 0 : }
489 :
490 : /* The rest of this function is a no-op for us since we already set up
491 : the transaction accounts for unknown accounts within
492 : `fd_executor_setup_accounts_for_txn()`. We also do not need to
493 : add a base cost to the loaded account size because the SIMD
494 : states that accounts that do not exist prior to the transaction's
495 : execution should not incur a loaded size cost.
496 : https://github.com/anza-xyz/agave/blob/v2.2.0/svm/src/account_loader.rs#L566-L577 */
497 0 : return 0UL;
498 0 : }
499 :
500 : /* This big function contains a lot of logic and special casing for loading transaction accounts.
501 : Because of the `enable_transaction_loading_failure_fees` feature, it is imperative that we
502 : are conformant with Agave's logic here and reject / accept transactions here where they do.
503 :
504 : In the firedancer client only some of these steps are necessary because
505 : all of the accounts are loaded in from the accounts db into borrowed
506 : accounts already.
507 :
508 : https://github.com/anza-xyz/agave/blob/v2.3.1/svm/src/account_loader.rs#L691-L807 */
509 : static int
510 : fd_executor_load_transaction_accounts_old( fd_runtime_t * runtime,
511 : fd_bank_t * bank,
512 : fd_txn_in_t const * txn_in,
513 0 : fd_txn_out_t * txn_out ) {
514 0 : ulong requested_loaded_accounts_data_size = txn_out->details.compute_budget.loaded_accounts_data_size_limit;
515 :
516 : /* https://github.com/anza-xyz/agave/blob/v2.2.0/svm/src/account_loader.rs#L429-L443 */
517 0 : for( ushort i=0; i<txn_out->accounts.accounts_cnt; i++ ) {
518 0 : fd_txn_account_t * acct = &txn_out->accounts.accounts[i];
519 0 : uchar unknown_acc = !!(fd_runtime_get_account_at_index( txn_in, txn_out, i, &acct, fd_runtime_account_check_exists ) ||
520 0 : fd_txn_account_get_lamports( acct )==0UL);
521 0 : uchar is_writable = !!(fd_runtime_account_is_writable_idx( txn_in, txn_out, bank, i ));
522 :
523 : /* Collect the fee payer account separately (since it was already)
524 : loaded during fee payer validation.
525 :
526 : https://github.com/anza-xyz/agave/blob/v2.3.1/svm/src/account_loader.rs#L727-L729 */
527 0 : if( FD_UNLIKELY( i==FD_FEE_PAYER_TXN_IDX ) ) {
528 : /* Note that the dlen for most fee payers is 0, but we want to
529 : consider the case where the fee payer is a nonce account.
530 : We also don't need to add a base account size to this value
531 : because this branch would only be taken BEFORE SIMD-0186
532 : is enabled. */
533 0 : int err = accumulate_and_check_loaded_account_data_size( fd_txn_account_get_data_len( acct ),
534 0 : requested_loaded_accounts_data_size,
535 0 : &txn_out->details.loaded_accounts_data_size );
536 0 : if( FD_UNLIKELY( err!=FD_RUNTIME_EXECUTE_SUCCESS ) ) {
537 0 : return err;
538 0 : }
539 0 : continue;
540 0 : }
541 :
542 : /* https://github.com/anza-xyz/agave/blob/v2.3.1/svm/src/account_loader.rs#L733-L740 */
543 0 : ulong loaded_acc_size = load_transaction_account( bank, txn_in, txn_out, acct, is_writable, unknown_acc, i );
544 0 : int err = accumulate_and_check_loaded_account_data_size( loaded_acc_size,
545 0 : requested_loaded_accounts_data_size,
546 0 : &txn_out->details.loaded_accounts_data_size );
547 :
548 0 : if( FD_UNLIKELY( err!=FD_RUNTIME_EXECUTE_SUCCESS ) ) {
549 0 : return err;
550 0 : }
551 0 : }
552 :
553 : /* TODO: Consider using a hash set (if its more performant) */
554 0 : ushort instr_cnt = TXN( txn_in->txn )->instr_cnt;
555 0 : fd_pubkey_t validated_loaders[instr_cnt];
556 0 : ushort validated_loaders_cnt = 0;
557 0 : fd_funk_txn_xid_t xid = { .ul = { fd_bank_slot_get( bank ), bank->idx } };
558 :
559 : /* The logic below handles special casing with loading instruction accounts.
560 : https://github.com/anza-xyz/agave/blob/v2.2.0/svm/src/account_loader.rs#L445-L525 */
561 0 : for( ushort i=0; i<instr_cnt; i++ ) {
562 0 : fd_txn_instr_t const * instr = &TXN( txn_in->txn )->instr[i];
563 :
564 : /* https://github.com/anza-xyz/agave/blob/v2.2.0/svm/src/account_loader.rs#L449-L451 */
565 0 : if( FD_UNLIKELY( !memcmp( txn_out->accounts.account_keys[ instr->program_id ].key, fd_solana_native_loader_id.key, sizeof(fd_pubkey_t) ) ) ) {
566 0 : continue;
567 0 : }
568 :
569 : /* Mimicking `load_account()` here with 0-lamport check as well.
570 : https://github.com/anza-xyz/agave/blob/v2.2.0/svm/src/account_loader.rs#L455-L462 */
571 0 : fd_txn_account_t * program_account = NULL;
572 0 : int err = fd_runtime_get_account_at_index( txn_in,
573 0 : txn_out,
574 0 : instr->program_id,
575 0 : &program_account,
576 0 : fd_runtime_account_check_exists );
577 0 : if( FD_UNLIKELY( err!=FD_ACC_MGR_SUCCESS || fd_txn_account_get_lamports( program_account )==0UL ) ) {
578 0 : return FD_RUNTIME_TXN_ERR_PROGRAM_ACCOUNT_NOT_FOUND;
579 0 : }
580 :
581 : /* https://github.com/anza-xyz/agave/blob/v2.2.0/svm/src/account_loader.rs#L474-L477 */
582 0 : if( !memcmp( fd_txn_account_get_owner( program_account ), fd_solana_native_loader_id.key, sizeof(fd_pubkey_t) ) ) {
583 0 : continue;
584 0 : }
585 :
586 : /* https://github.com/anza-xyz/agave/blob/v2.2.0/svm/src/account_loader.rs#L479-L522 */
587 0 : uchar loader_seen = 0;
588 0 : for( ushort j=0; j<validated_loaders_cnt; j++ ) {
589 0 : if( !memcmp( validated_loaders[j].key, fd_txn_account_get_owner( program_account ), sizeof(fd_pubkey_t) ) ) {
590 : /* If the owner account has already been seen, skip the owner checks
591 : and do not acccumulate the account size. */
592 0 : loader_seen = 1;
593 0 : break;
594 0 : }
595 0 : }
596 0 : if( loader_seen ) continue;
597 :
598 : /* The agave client does checks on the program account's owners as well.
599 : However, it is important to not do these checks multiple times as the
600 : total size of accounts and their owners are accumulated: duplicate owners
601 : should be avoided.
602 : https://github.com/anza-xyz/agave/blob/v2.2.0/svm/src/account_loader.rs#L496-L517 */
603 0 : fd_txn_account_t owner_account[1];
604 0 : err = fd_txn_account_init_from_funk_readonly( owner_account,
605 0 : fd_txn_account_get_owner( program_account ),
606 0 : runtime->funk,
607 0 : &xid );
608 0 : if( FD_UNLIKELY( err!=FD_ACC_MGR_SUCCESS ) ) {
609 : /* https://github.com/anza-xyz/agave/blob/v2.2.0/svm/src/account_loader.rs#L520 */
610 0 : return FD_RUNTIME_TXN_ERR_PROGRAM_ACCOUNT_NOT_FOUND;
611 0 : }
612 :
613 :
614 : /* https://github.com/anza-xyz/agave/blob/v2.2.0/svm/src/account_loader.rs#L502-L510 */
615 0 : if( FD_UNLIKELY( memcmp( fd_txn_account_get_owner( owner_account ), fd_solana_native_loader_id.key, sizeof(fd_pubkey_t) ) ) ) {
616 0 : return FD_RUNTIME_TXN_ERR_INVALID_PROGRAM_FOR_EXECUTION;
617 0 : }
618 :
619 : /* Count the owner's data in the loaded account size for program accounts.
620 : However, it is important to not double count repeated owners.
621 : https://github.com/anza-xyz/agave/blob/v2.2.0/svm/src/account_loader.rs#L511-L517 */
622 0 : err = accumulate_and_check_loaded_account_data_size( fd_txn_account_get_data_len( owner_account ),
623 0 : requested_loaded_accounts_data_size,
624 0 : &txn_out->details.loaded_accounts_data_size );
625 0 : if( FD_UNLIKELY( err!=FD_RUNTIME_EXECUTE_SUCCESS ) ) {
626 0 : return err;
627 0 : }
628 :
629 0 : fd_memcpy( validated_loaders[ validated_loaders_cnt++ ].key, owner_account->pubkey, sizeof(fd_pubkey_t) );
630 0 : }
631 :
632 0 : return FD_RUNTIME_EXECUTE_SUCCESS;
633 0 : }
634 :
635 : /* https://github.com/anza-xyz/agave/blob/v2.3.1/svm/src/account_loader.rs#L494-L515 */
636 : static int
637 : fd_increase_calculated_data_size( fd_txn_out_t * txn_out,
638 0 : ulong data_size_delta ) {
639 : /* https://github.com/anza-xyz/agave/blob/v2.3.1/svm/src/account_loader.rs#L500-L503 */
640 0 : if( FD_UNLIKELY( data_size_delta>UINT_MAX ) ) {
641 0 : return FD_RUNTIME_TXN_ERR_MAX_LOADED_ACCOUNTS_DATA_SIZE_EXCEEDED;
642 0 : }
643 :
644 : /* https://github.com/anza-xyz/agave/blob/v2.3.1/svm/src/account_loader.rs#L505-L507 */
645 0 : txn_out->details.loaded_accounts_data_size = fd_ulong_sat_add( txn_out->details.loaded_accounts_data_size, data_size_delta );
646 :
647 0 : if( FD_UNLIKELY( txn_out->details.loaded_accounts_data_size>txn_out->details.compute_budget.loaded_accounts_data_size_limit ) ) {
648 0 : return FD_RUNTIME_TXN_ERR_MAX_LOADED_ACCOUNTS_DATA_SIZE_EXCEEDED;
649 0 : }
650 :
651 0 : return FD_RUNTIME_EXECUTE_SUCCESS;
652 0 : }
653 :
654 : /* This function is represented as a closure in Agave.
655 : https://github.com/anza-xyz/agave/blob/v2.3.1/svm/src/account_loader.rs#L578-L640 */
656 : static int
657 : fd_collect_loaded_account( fd_runtime_t * runtime,
658 : fd_txn_out_t * txn_out,
659 : fd_bank_t * bank,
660 : fd_txn_account_t const * account,
661 : ulong loaded_acc_size,
662 : fd_pubkey_t * additional_loaded_account_keys,
663 0 : ulong * additional_loaded_account_keys_cnt ) {
664 :
665 : /* https://github.com/anza-xyz/agave/blob/v2.3.1/svm/src/account_loader.rs#L586-L590 */
666 0 : int err = fd_increase_calculated_data_size( txn_out, loaded_acc_size );
667 0 : if( FD_UNLIKELY( err!=FD_RUNTIME_EXECUTE_SUCCESS ) ) {
668 0 : return err;
669 0 : }
670 :
671 : /* The remainder of this function is a deep-nested set of if
672 : statements. I've inverted the logic to make it easier to read.
673 : The purpose of the following code is to ensure that loader v3
674 : programdata accounts are accounted for exactly once in the account
675 : loading logic.
676 :
677 : https://github.com/anza-xyz/agave/blob/v2.3.1/svm/src/account_loader.rs#L611 */
678 0 : if( FD_LIKELY( memcmp( fd_txn_account_get_owner( account ), fd_solana_bpf_loader_upgradeable_program_id.key, sizeof(fd_pubkey_t) ) ) ) {
679 0 : return FD_RUNTIME_EXECUTE_SUCCESS;
680 0 : }
681 :
682 : /* Try to read the program state
683 : https://github.com/anza-xyz/agave/blob/v2.3.1/svm/src/account_loader.rs#L612-L634 */
684 0 : fd_bpf_upgradeable_loader_state_t loader_state[1];
685 0 : err = fd_bpf_loader_program_get_state( account, loader_state );
686 0 : if( FD_UNLIKELY( err!=FD_EXECUTOR_INSTR_SUCCESS ) ) {
687 0 : return FD_RUNTIME_EXECUTE_SUCCESS;
688 0 : }
689 :
690 : /* Make sure the account is a v3 program */
691 0 : if( !fd_bpf_upgradeable_loader_state_is_program( loader_state ) ) {
692 0 : return FD_RUNTIME_EXECUTE_SUCCESS;
693 0 : }
694 :
695 : /* Iterate through the account keys and make sure the programdata
696 : account is not present so it doesn't get loaded twice.
697 : https://github.com/anza-xyz/agave/blob/v2.3.1/svm/src/account_loader.rs#L617 */
698 0 : for( ushort i=0; i<txn_out->accounts.accounts_cnt; i++ ) {
699 0 : if( FD_UNLIKELY( !memcmp( &txn_out->accounts.account_keys[i], &loader_state->inner.program.programdata_address, sizeof(fd_pubkey_t) ) ) ) {
700 0 : return FD_RUNTIME_EXECUTE_SUCCESS;
701 0 : }
702 0 : }
703 :
704 : /* Check that the programdata account has not been already counted
705 : https://github.com/anza-xyz/agave/blob/v2.3.1/svm/src/account_loader.rs#L618 */
706 0 : for( ushort i=0; i<*additional_loaded_account_keys_cnt; i++ ) {
707 0 : if( FD_UNLIKELY( !memcmp( &additional_loaded_account_keys[i], &loader_state->inner.program.programdata_address, sizeof(fd_pubkey_t) ) ) ) {
708 0 : return FD_RUNTIME_EXECUTE_SUCCESS;
709 0 : }
710 0 : }
711 :
712 : /* Load the programdata account from Funk to read the programdata length */
713 0 : fd_txn_account_t programdata_account[1];
714 0 : fd_funk_txn_xid_t xid = { .ul = { fd_bank_slot_get( bank ), bank->idx } };
715 0 : err = fd_txn_account_init_from_funk_readonly( programdata_account,
716 0 : &loader_state->inner.program.programdata_address,
717 0 : runtime->funk,
718 0 : &xid );
719 0 : if( FD_UNLIKELY( err!=FD_ACC_MGR_SUCCESS ) ) {
720 0 : return FD_RUNTIME_EXECUTE_SUCCESS;
721 0 : }
722 :
723 : /* Try to accumulate the programdata's data size
724 : https://github.com/anza-xyz/agave/blob/v2.3.1/svm/src/account_loader.rs#L625-L630 */
725 0 : ulong programdata_size_delta = fd_ulong_sat_add( FD_TRANSACTION_ACCOUNT_BASE_SIZE,
726 0 : fd_txn_account_get_data_len( programdata_account ) );
727 0 : err = fd_increase_calculated_data_size( txn_out, programdata_size_delta );
728 0 : if( FD_UNLIKELY( err!=FD_RUNTIME_EXECUTE_SUCCESS ) ) {
729 0 : return err;
730 0 : }
731 :
732 : /* Add the programdata account to the list of loaded programdata accounts
733 : https://github.com/anza-xyz/agave/blob/v2.3.1/svm/src/account_loader.rs#L631 */
734 0 : fd_memcpy(
735 0 : &additional_loaded_account_keys[(*additional_loaded_account_keys_cnt)++],
736 0 : &loader_state->inner.program.programdata_address,
737 0 : sizeof(fd_pubkey_t) );
738 :
739 0 : return FD_RUNTIME_EXECUTE_SUCCESS;
740 0 : }
741 :
742 : /* Simplified transaction loading logic for SIMD-0186 which does the
743 : following:
744 : - Calculates the loaded data size for each address lookup table
745 : - Calculates the loaded data size for each transaction account
746 : - Calculates the loaded data size for each v3 programdata account
747 : not directly referenced in the transaction accounts
748 : - Collects rent from all referenced transaction accounts (excluding
749 : the fee payer)
750 : - Validates that each program invoked in a top-level instruction
751 : exists, is executable, and is owned by either the native loader
752 : or a bpf loader
753 :
754 : https://github.com/anza-xyz/agave/blob/v2.3.1/svm/src/account_loader.rs#L550-L689 */
755 : static int
756 : fd_executor_load_transaction_accounts_simd_186( fd_runtime_t * runtime,
757 : fd_bank_t * bank,
758 : fd_txn_in_t const * txn_in,
759 0 : fd_txn_out_t * txn_out ) {
760 : /* Programdata accounts that are loaded by this transaction.
761 : We keep track of these to ensure they are not counted twice.
762 : https://github.com/anza-xyz/agave/blob/v2.3.1/svm/src/account_loader.rs#L559 */
763 0 : fd_pubkey_t additional_loaded_account_keys[ FD_TXN_ACCT_ADDR_MAX ] = { 0 };
764 0 : ulong additional_loaded_account_keys_cnt = 0UL;
765 :
766 : /* Charge a base fee for each address lookup table.
767 : https://github.com/anza-xyz/agave/blob/v2.3.1/svm/src/account_loader.rs#L570-L576 */
768 0 : ulong aluts_size = fd_ulong_sat_mul( TXN( txn_in->txn )->addr_table_lookup_cnt,
769 0 : FD_ADDRESS_LOOKUP_TABLE_BASE_SIZE );
770 0 : int err = fd_increase_calculated_data_size( txn_out, aluts_size );
771 0 : if( FD_UNLIKELY( err!=FD_RUNTIME_EXECUTE_SUCCESS ) ) {
772 0 : return err;
773 0 : }
774 :
775 : /* https://github.com/anza-xyz/agave/blob/v2.3.1/svm/src/account_loader.rs#L642-L660 */
776 0 : for( ushort i=0; i<txn_out->accounts.accounts_cnt; i++ ) {
777 0 : fd_txn_account_t * acct = &txn_out->accounts.accounts[i];
778 0 : uchar unknown_acc = !!(fd_runtime_get_account_at_index( txn_in, txn_out, i, &acct, fd_runtime_account_check_exists ) ||
779 0 : fd_txn_account_get_lamports( acct )==0UL);
780 0 : uchar is_writable = !!(fd_runtime_account_is_writable_idx( txn_in, txn_out, bank, i ));
781 :
782 : /* Collect the fee payer account separately (since it was already)
783 : loaded during fee payer validation.
784 :
785 : https://github.com/anza-xyz/agave/blob/v2.3.1/svm/src/account_loader.rs#L644-L648 */
786 0 : if( FD_UNLIKELY( i==FD_FEE_PAYER_TXN_IDX ) ) {
787 : /* Note that the dlen for most fee payers is 0, but we want to
788 : consider the case where the fee payer is a nonce account.
789 : We also must add a base account size to this value
790 : because this branch would only be taken AFTER SIMD-0186
791 : is enabled. */
792 0 : ulong loaded_acc_size = fd_ulong_sat_add( FD_TRANSACTION_ACCOUNT_BASE_SIZE,
793 0 : fd_txn_account_get_data_len( acct ) );
794 0 : int err = fd_collect_loaded_account(
795 0 : runtime,
796 0 : txn_out,
797 0 : bank,
798 0 : acct,
799 0 : loaded_acc_size,
800 0 : additional_loaded_account_keys,
801 0 : &additional_loaded_account_keys_cnt );
802 0 : if( FD_UNLIKELY( err!=FD_RUNTIME_EXECUTE_SUCCESS ) ) {
803 0 : return err;
804 0 : }
805 0 : continue;
806 0 : }
807 :
808 : /* Load and collect any remaining accounts
809 : https://github.com/anza-xyz/agave/blob/v2.3.1/svm/src/account_loader.rs#L652-L659 */
810 0 : ulong loaded_acc_size = load_transaction_account( bank, txn_in, txn_out, acct, is_writable, unknown_acc, i );
811 0 : int err = fd_collect_loaded_account(
812 0 : runtime,
813 0 : txn_out,
814 0 : bank,
815 0 : acct,
816 0 : loaded_acc_size,
817 0 : additional_loaded_account_keys,
818 0 : &additional_loaded_account_keys_cnt );
819 0 : if( FD_UNLIKELY( err!=FD_RUNTIME_EXECUTE_SUCCESS ) ) {
820 0 : return err;
821 0 : }
822 0 : }
823 :
824 : /* https://github.com/anza-xyz/agave/blob/v2.3.1/svm/src/account_loader.rs#L662-L686 */
825 0 : ushort instr_cnt = TXN( txn_in->txn )->instr_cnt;
826 0 : for( ushort i=0; i<instr_cnt; i++ ) {
827 0 : fd_txn_instr_t const * instr = &TXN( txn_in->txn )->instr[i];
828 :
829 : /* Mimicking `load_account()` here with 0-lamport check as well.
830 : https://github.com/anza-xyz/agave/blob/v2.3.1/svm/src/account_loader.rs#L663-L666 */
831 0 : fd_txn_account_t * program_account;
832 0 : int err = fd_runtime_get_account_at_index( txn_in,
833 0 : txn_out,
834 0 : instr->program_id,
835 0 : &program_account,
836 0 : fd_runtime_account_check_exists );
837 0 : if( FD_UNLIKELY( err!=FD_ACC_MGR_SUCCESS || fd_txn_account_get_lamports( program_account )==0UL ) ) {
838 0 : return FD_RUNTIME_TXN_ERR_PROGRAM_ACCOUNT_NOT_FOUND;
839 0 : }
840 :
841 : /* https://github.com/anza-xyz/agave/blob/v2.3.1/svm/src/account_loader.rs#L677-L681 */
842 0 : fd_pubkey_t const * owner_id = fd_txn_account_get_owner( program_account );
843 0 : if( FD_UNLIKELY( memcmp( owner_id->key, fd_solana_native_loader_id.key, sizeof(fd_pubkey_t) ) &&
844 0 : !fd_executor_pubkey_is_bpf_loader( owner_id ) ) ) {
845 0 : return FD_RUNTIME_TXN_ERR_INVALID_PROGRAM_FOR_EXECUTION;
846 0 : }
847 0 : }
848 :
849 0 : return FD_RUNTIME_EXECUTE_SUCCESS;
850 0 : }
851 :
852 : /* https://github.com/anza-xyz/agave/blob/v2.3.1/svm/src/account_loader.rs#L518-L548 */
853 : int
854 : fd_executor_load_transaction_accounts( fd_runtime_t * runtime,
855 : fd_bank_t * bank,
856 : fd_txn_in_t const * txn_in,
857 0 : fd_txn_out_t * txn_out ) {
858 0 : if( FD_FEATURE_ACTIVE_BANK( bank, formalize_loaded_transaction_data_size ) ) {
859 0 : return fd_executor_load_transaction_accounts_simd_186( runtime, bank, txn_in, txn_out );
860 0 : } else {
861 0 : return fd_executor_load_transaction_accounts_old( runtime, bank, txn_in, txn_out );
862 0 : }
863 0 : }
864 :
865 : /* https://github.com/anza-xyz/agave/blob/838c1952595809a31520ff1603a13f2c9123aa51/accounts-db/src/account_locks.rs#L118 */
866 : int
867 : fd_executor_validate_account_locks( fd_bank_t * bank,
868 0 : fd_txn_out_t const * txn_out ) {
869 : /* Ensure the number of account keys does not exceed the transaction lock limit
870 : https://github.com/anza-xyz/agave/blob/v2.2.17/accounts-db/src/account_locks.rs#L121 */
871 0 : ulong tx_account_lock_limit = get_transaction_account_lock_limit( bank );
872 0 : if( FD_UNLIKELY( txn_out->accounts.accounts_cnt>tx_account_lock_limit ) ) {
873 0 : return FD_RUNTIME_TXN_ERR_TOO_MANY_ACCOUNT_LOCKS;
874 0 : }
875 :
876 : /* Duplicate account check
877 : https://github.com/anza-xyz/agave/blob/v2.2.17/accounts-db/src/account_locks.rs#L123 */
878 0 : for( ushort i=0; i<txn_out->accounts.accounts_cnt; i++ ) {
879 0 : for( ushort j=(ushort)(i+1U); j<txn_out->accounts.accounts_cnt; j++ ) {
880 0 : if( FD_UNLIKELY( !memcmp( &txn_out->accounts.account_keys[i], &txn_out->accounts.account_keys[j], sizeof(fd_pubkey_t) ) ) ) {
881 0 : return FD_RUNTIME_TXN_ERR_ACCOUNT_LOADED_TWICE;
882 0 : }
883 0 : }
884 0 : }
885 :
886 : /* https://github.com/anza-xyz/agave/blob/v2.2.17/accounts-db/src/account_locks.rs#L124-L126 */
887 0 : return FD_RUNTIME_EXECUTE_SUCCESS;
888 0 : }
889 :
890 : /* https://github.com/anza-xyz/agave/blob/v2.3.1/compute-budget/src/compute_budget_limits.rs#L62-L70 */
891 : static ulong
892 0 : fd_get_prioritization_fee( fd_compute_budget_details_t const * compute_budget_details ) {
893 0 : uint128 micro_lamport_fee = fd_uint128_sat_mul( compute_budget_details->compute_unit_price, compute_budget_details->compute_unit_limit );
894 0 : uint128 fee = fd_uint128_sat_add( micro_lamport_fee, MICRO_LAMPORTS_PER_LAMPORT-1UL ) / MICRO_LAMPORTS_PER_LAMPORT;
895 0 : return fee>(uint128)ULONG_MAX ? ULONG_MAX : (ulong)fee;
896 0 : }
897 :
898 : static void
899 : fd_executor_calculate_fee( fd_bank_t * bank,
900 : fd_txn_out_t * txn_out,
901 : fd_txn_t const * txn_descriptor,
902 : uchar const * payload,
903 : ulong * ret_execution_fee,
904 0 : ulong * ret_priority_fee ) {
905 : /* The execution fee is just the signature fee. The priority fee
906 : is calculated based on the compute budget details.
907 : https://github.com/anza-xyz/agave/blob/v3.0.3/fee/src/lib.rs#L65-L84 */
908 :
909 : // let signature_fee = Self::get_num_signatures_in_message(message) .saturating_mul(fee_structure.lamports_per_signature);
910 0 : ulong num_signatures = txn_descriptor->signature_cnt;
911 0 : for (ushort i=0; i<txn_descriptor->instr_cnt; ++i ) {
912 0 : fd_txn_instr_t const * txn_instr = &txn_descriptor->instr[i];
913 0 : fd_pubkey_t * program_id = &txn_out->accounts.account_keys[txn_instr->program_id];
914 0 : if( !memcmp(program_id->uc, fd_solana_keccak_secp_256k_program_id.key, sizeof(fd_pubkey_t)) ||
915 0 : !memcmp(program_id->uc, fd_solana_ed25519_sig_verify_program_id.key, sizeof(fd_pubkey_t)) ||
916 0 : (!memcmp(program_id->uc, fd_solana_secp256r1_program_id.key, sizeof(fd_pubkey_t)) && FD_FEATURE_ACTIVE_BANK( bank, enable_secp256r1_precompile )) ) {
917 0 : if( !txn_instr->data_sz ) {
918 0 : continue;
919 0 : }
920 0 : uchar const * data = payload + txn_instr->data_off;
921 0 : num_signatures = fd_ulong_sat_add(num_signatures, (ulong)(data[0]));
922 0 : }
923 0 : }
924 0 : *ret_execution_fee = FD_RUNTIME_FEE_STRUCTURE_LAMPORTS_PER_SIGNATURE * num_signatures;
925 0 : *ret_priority_fee = fd_get_prioritization_fee( &txn_out->details.compute_budget );
926 0 : }
927 :
928 : /* This function creates a rollback account for just the fee payer. Although Agave
929 : also sets up rollback accounts for both the fee payer and nonce account here,
930 : we already set up the rollback nonce account in earlier sanitization checks. Here
931 : we have to capture the entire fee payer record so that if the transaction fails,
932 : the fee payer state can be rolled back to it's state pre-transaction, and then debited
933 : any transaction fees.
934 :
935 : Our implementation is slightly different than Agave's in several ways:
936 : 1. The rollback nonce account has already been set up when checking the transaction age
937 : 2. When the nonce and fee payer accounts are the same...
938 : - Agave copies the data from the rollback nonce account into the rollback fee payer account,
939 : and then uses that new fee payer account as the rollback account.
940 : - We simply set the rent epoch and lamports of the rollback nonce account (since the other fields
941 : of the account do not change)
942 :
943 : https://github.com/anza-xyz/agave/blob/v2.2.13/svm/src/rollback_accounts.rs#L34-L77 */
944 : static void
945 : fd_executor_create_rollback_fee_payer_account( fd_runtime_t * runtime,
946 : fd_bank_t * bank,
947 : fd_txn_in_t const * txn_in,
948 : fd_txn_out_t * txn_out,
949 0 : ulong total_fee ) {
950 0 : fd_pubkey_t * fee_payer_key = &txn_out->accounts.account_keys[FD_FEE_PAYER_TXN_IDX];
951 0 : fd_txn_account_t * rollback_fee_payer_acc;
952 :
953 : /* When setting the data of the rollback fee payer, there is an edge
954 : case where the fee payer is the nonce account. In this case, we
955 : can just deduct fees from the nonce account and return, because
956 : we save the nonce account in the commit phase anyways. */
957 0 : if( FD_UNLIKELY( txn_out->accounts.nonce_idx_in_txn==FD_FEE_PAYER_TXN_IDX ) ) {
958 0 : rollback_fee_payer_acc = txn_out->accounts.rollback_nonce;
959 0 : } else {
960 0 : fd_account_meta_t const * meta = NULL;
961 0 : if( FD_UNLIKELY( txn_in->bundle.is_bundle ) ) {
962 0 : int is_found = 0;
963 0 : for( ulong i=txn_in->bundle.prev_txn_cnt; i>0UL && !is_found; i-- ) {;
964 0 : fd_txn_in_t const * prev_txn_in = txn_in->bundle.prev_txn_ins[ i-1 ];
965 0 : fd_txn_out_t const * prev_txn_out = txn_in->bundle.prev_txn_outs[ i-1 ];
966 0 : for( ushort j=0UL; j<prev_txn_out->accounts.accounts_cnt; j++ ) {
967 0 : if( !memcmp( &prev_txn_out->accounts.account_keys[ j ], fee_payer_key, sizeof(fd_pubkey_t) ) &&
968 0 : fd_runtime_account_is_writable_idx( prev_txn_in, prev_txn_out, bank, j ) ) {
969 : /* Found the account in a previous transaction */
970 0 : meta = prev_txn_out->accounts.accounts[ j ].meta;
971 0 : is_found = 1;
972 0 : break;
973 0 : }
974 0 : }
975 0 : }
976 0 : }
977 :
978 0 : int err = FD_ACC_MGR_SUCCESS;
979 0 : if( !meta ) {
980 0 : fd_funk_txn_xid_t xid = { .ul = { fd_bank_slot_get( bank ), bank->idx } };
981 0 : meta = fd_funk_get_acc_meta_readonly(
982 0 : runtime->funk,
983 0 : &xid,
984 0 : fee_payer_key,
985 0 : NULL,
986 0 : &err,
987 0 : NULL );
988 0 : }
989 :
990 0 : uchar * fee_payer_data = txn_in->exec_accounts->rollback_fee_payer_mem;
991 0 : fd_memcpy( fee_payer_data, (uchar *)meta, sizeof(fd_account_meta_t) + meta->dlen );
992 0 : if( FD_UNLIKELY( !fd_txn_account_join( fd_txn_account_new(
993 0 : txn_out->accounts.rollback_fee_payer,
994 0 : fee_payer_key,
995 0 : (fd_account_meta_t *)fee_payer_data,
996 0 : 1 ) ) ) ) {
997 0 : FD_LOG_CRIT(( "Failed to join txn account" ));
998 0 : }
999 :
1000 0 : rollback_fee_payer_acc = txn_out->accounts.rollback_fee_payer;
1001 0 : }
1002 :
1003 : /* Deduct the transaction fees from the rollback account. Because of prior checks, this should never fail. */
1004 0 : if( FD_UNLIKELY( fd_txn_account_checked_sub_lamports( rollback_fee_payer_acc, total_fee ) ) ) {
1005 0 : FD_LOG_ERR(( "fd_executor_create_rollback_fee_payer_account(): failed to deduct fees from rollback account" ));
1006 0 : }
1007 0 : }
1008 :
1009 : /* https://github.com/anza-xyz/agave/blob/v2.2.13/svm/src/transaction_processor.rs#L557-L634 */
1010 : int
1011 : fd_executor_validate_transaction_fee_payer( fd_runtime_t * runtime,
1012 : fd_bank_t * bank,
1013 : fd_txn_in_t const * txn_in,
1014 0 : fd_txn_out_t * txn_out ) {
1015 : /* https://github.com/anza-xyz/agave/blob/v2.2.13/svm/src/transaction_processor.rs#L574-L580 */
1016 0 : fd_txn_account_t * fee_payer_rec = NULL;
1017 0 : int err = fd_runtime_get_account_at_index( txn_in,
1018 0 : txn_out,
1019 0 : FD_FEE_PAYER_TXN_IDX,
1020 0 : &fee_payer_rec,
1021 0 : fd_runtime_account_check_fee_payer_writable );
1022 0 : if( FD_UNLIKELY( err!=FD_ACC_MGR_SUCCESS ) ) {
1023 0 : FD_LOG_DEBUG(( "Fee payer isn't writable %s", FD_BASE58_ENC_32_ALLOCA( fee_payer_rec->pubkey ) ));
1024 0 : return FD_RUNTIME_TXN_ERR_ACCOUNT_NOT_FOUND;
1025 0 : }
1026 :
1027 :
1028 : /* Calculate transaction fees
1029 : https://github.com/anza-xyz/agave/blob/v2.2.13/svm/src/transaction_processor.rs#L597-L606 */
1030 0 : ulong execution_fee = 0UL;
1031 0 : ulong priority_fee = 0UL;
1032 :
1033 0 : fd_executor_calculate_fee( bank, txn_out, TXN( txn_in->txn ), txn_in->txn->payload, &execution_fee, &priority_fee );
1034 0 : ulong total_fee = fd_ulong_sat_add( execution_fee, priority_fee );
1035 :
1036 0 : if( !FD_FEATURE_ACTIVE_BANK( bank, remove_rounding_in_fee_calculation ) ) {
1037 0 : total_fee = fd_rust_cast_double_to_ulong( round( (double)total_fee ) );
1038 0 : }
1039 :
1040 : /* https://github.com/anza-xyz/agave/blob/v2.2.13/svm/src/transaction_processor.rs#L609-L616 */
1041 0 : err = fd_validate_fee_payer( fee_payer_rec, fd_bank_rent_query( bank ), total_fee );
1042 0 : if( FD_UNLIKELY( err ) ) {
1043 0 : return err;
1044 0 : }
1045 :
1046 : /* Create the rollback fee payer account
1047 : https://github.com/anza-xyz/agave/blob/v2.2.13/svm/src/transaction_processor.rs#L620-L626 */
1048 0 : fd_executor_create_rollback_fee_payer_account( runtime, bank, txn_in, txn_out, total_fee );
1049 :
1050 : /* Set the starting lamports (to avoid unbalanced lamports issues in instruction execution) */
1051 0 : fee_payer_rec->starting_lamports = fd_txn_account_get_lamports( fee_payer_rec ); /* TODO: why do we do this everywhere? */
1052 :
1053 0 : txn_out->details.execution_fee = execution_fee;
1054 0 : txn_out->details.priority_fee = priority_fee;
1055 :
1056 0 : return FD_RUNTIME_EXECUTE_SUCCESS;
1057 0 : }
1058 :
1059 : /* Simply unpacks the account keys from the serialized transaction and
1060 : sets them in the txn_out. */
1061 : void
1062 : fd_executor_setup_txn_account_keys( fd_txn_in_t const * txn_in,
1063 0 : fd_txn_out_t * txn_out ) {
1064 0 : txn_out->accounts.accounts_cnt = (uchar)TXN( txn_in->txn )->acct_addr_cnt;
1065 0 : fd_pubkey_t * tx_accs = (fd_pubkey_t *)((uchar *)txn_in->txn->payload + TXN( txn_in->txn )->acct_addr_off);
1066 :
1067 : // Set up accounts in the transaction body and perform checks
1068 0 : for( ulong i = 0UL; i < TXN( txn_in->txn )->acct_addr_cnt; i++ ) {
1069 0 : txn_out->accounts.account_keys[i] = tx_accs[i];
1070 0 : }
1071 0 : }
1072 :
1073 : /* Resolves any address lookup tables referenced in the transaction and adds
1074 : them to the transaction's account keys. Returns 0 on success or if the transaction
1075 : is a legacy transaction, and an FD_RUNTIME_TXN_ERR_* on failure. */
1076 : int
1077 : fd_executor_setup_txn_alut_account_keys( fd_runtime_t * runtime,
1078 : fd_bank_t * bank,
1079 : fd_txn_in_t const * txn_in,
1080 0 : fd_txn_out_t * txn_out ) {
1081 0 : if( TXN( txn_in->txn )->transaction_version == FD_TXN_V0 ) {
1082 : /* https://github.com/anza-xyz/agave/blob/368ea563c423b0a85cc317891187e15c9a321521/runtime/src/bank/address_lookup_table.rs#L44-L48 */
1083 0 : fd_sysvar_cache_t const * sysvar_cache = fd_bank_sysvar_cache_query( bank );
1084 0 : fd_slot_hash_t const * slot_hashes = fd_sysvar_cache_slot_hashes_join_const( sysvar_cache );
1085 0 : if( FD_UNLIKELY( !slot_hashes ) ) {
1086 0 : FD_LOG_DEBUG(( "fd_executor_setup_txn_alut_account_keys(): failed to get slot hashes" ));
1087 0 : return FD_RUNTIME_TXN_ERR_ACCOUNT_NOT_FOUND;
1088 0 : }
1089 0 : fd_funk_txn_xid_t xid = { .ul = { fd_bank_slot_get( bank ), bank->idx } };
1090 0 : fd_acct_addr_t * accts_alt = (fd_acct_addr_t *) fd_type_pun( &txn_out->accounts.account_keys[txn_out->accounts.accounts_cnt] );
1091 0 : int err = fd_runtime_load_txn_address_lookup_tables( TXN( txn_in->txn ),
1092 0 : txn_in->txn->payload,
1093 0 : runtime->funk,
1094 0 : &xid,
1095 0 : fd_bank_slot_get( bank ),
1096 0 : slot_hashes,
1097 0 : accts_alt );
1098 0 : fd_sysvar_cache_slot_hashes_leave_const( sysvar_cache, slot_hashes );
1099 0 : txn_out->accounts.accounts_cnt += TXN( txn_in->txn )->addr_table_adtl_cnt;
1100 0 : if( FD_UNLIKELY( err!=FD_RUNTIME_EXECUTE_SUCCESS ) ) return err;
1101 :
1102 0 : }
1103 0 : return FD_RUNTIME_EXECUTE_SUCCESS;
1104 0 : }
1105 :
1106 : /* https://github.com/anza-xyz/agave/blob/v2.0.0/sdk/src/transaction_context.rs#L319-L357 */
1107 : static inline int
1108 : fd_txn_ctx_push( fd_runtime_t * runtime,
1109 : fd_txn_in_t const * txn_in,
1110 : fd_txn_out_t * txn_out,
1111 0 : fd_instr_info_t * instr ) {
1112 : /* Earlier checks in the permalink are redundant since Agave maintains instr stack and trace accounts separately
1113 : https://github.com/anza-xyz/agave/blob/v2.0.0/sdk/src/transaction_context.rs#L327-L328 */
1114 0 : ulong starting_lamports_h = 0UL;
1115 0 : ulong starting_lamports_l = 0UL;
1116 0 : int err = fd_instr_info_sum_account_lamports( instr,
1117 0 : txn_out,
1118 0 : &starting_lamports_h,
1119 0 : &starting_lamports_l );
1120 0 : if( FD_UNLIKELY( err ) ) {
1121 0 : return err;
1122 0 : }
1123 0 : instr->starting_lamports_h = starting_lamports_h;
1124 0 : instr->starting_lamports_l = starting_lamports_l;
1125 :
1126 : /* Check that the caller's lamport sum has not changed.
1127 : https://github.com/anza-xyz/agave/blob/v2.0.0/sdk/src/transaction_context.rs#L329-L340 */
1128 0 : if( runtime->instr.stack_sz>0 ) {
1129 : /* https://github.com/anza-xyz/agave/blob/v2.0.0/sdk/src/transaction_context.rs#L330 */
1130 0 : fd_exec_instr_ctx_t const * caller_instruction_context = &runtime->instr.stack[ runtime->instr.stack_sz-1 ];
1131 :
1132 : /* https://github.com/anza-xyz/agave/blob/v2.0.0/sdk/src/transaction_context.rs#L331-L332 */
1133 0 : ulong original_caller_lamport_sum_h = caller_instruction_context->instr->starting_lamports_h;
1134 0 : ulong original_caller_lamport_sum_l = caller_instruction_context->instr->starting_lamports_l;
1135 :
1136 : /* https://github.com/anza-xyz/agave/blob/v2.0.0/sdk/src/transaction_context.rs#L333-L334 */
1137 0 : ulong current_caller_lamport_sum_h = 0UL;
1138 0 : ulong current_caller_lamport_sum_l = 0UL;
1139 0 : int err = fd_instr_info_sum_account_lamports( caller_instruction_context->instr,
1140 0 : caller_instruction_context->txn_out,
1141 0 : ¤t_caller_lamport_sum_h,
1142 0 : ¤t_caller_lamport_sum_l );
1143 0 : if( FD_UNLIKELY( err ) ) {
1144 0 : return err;
1145 0 : }
1146 :
1147 : /* https://github.com/anza-xyz/agave/blob/v2.0.0/sdk/src/transaction_context.rs#L335-L339 */
1148 0 : if( FD_UNLIKELY( current_caller_lamport_sum_h!=original_caller_lamport_sum_h ||
1149 0 : current_caller_lamport_sum_l!=original_caller_lamport_sum_l ) ) {
1150 0 : return FD_EXECUTOR_INSTR_ERR_UNBALANCED_INSTR;
1151 0 : }
1152 0 : }
1153 :
1154 : /* Note that we don't update the trace length here - since the caller
1155 : allocates out of the trace array, they are also responsible for
1156 : incrementing the trace length variable.
1157 : https://github.com/anza-xyz/agave/blob/v2.0.0/sdk/src/transaction_context.rs#L347-L351 */
1158 0 : if( FD_UNLIKELY( runtime->instr.trace_length>FD_MAX_INSTRUCTION_TRACE_LENGTH ) ) {
1159 0 : return FD_EXECUTOR_INSTR_ERR_MAX_INSN_TRACE_LENS_EXCEEDED;
1160 0 : }
1161 :
1162 : /* https://github.com/anza-xyz/agave/blob/v2.0.0/sdk/src/transaction_context.rs#L352-L356 */
1163 0 : if( FD_UNLIKELY( runtime->instr.stack_sz>=FD_MAX_INSTRUCTION_STACK_DEPTH ) ) {
1164 0 : return FD_EXECUTOR_INSTR_ERR_CALL_DEPTH;
1165 0 : }
1166 0 : runtime->instr.stack_sz++;
1167 :
1168 : /* A beloved refactor moves sysvar instructions updating to the instruction level as of v2.2.12...
1169 : https://github.com/anza-xyz/agave/blob/v2.2.12/transaction-context/src/lib.rs#L396-L407 */
1170 0 : int idx = fd_runtime_find_index_of_account( txn_out, &fd_sysvar_instructions_id );
1171 0 : if( FD_UNLIKELY( idx!=-1 ) ) {
1172 : /* https://github.com/anza-xyz/agave/blob/v2.2.12/transaction-context/src/lib.rs#L397-L400 */
1173 0 : fd_txn_account_t * sysvar_instructions_account = NULL;
1174 0 : err = fd_runtime_get_account_at_index( txn_in, txn_out, (ushort)idx, &sysvar_instructions_account, NULL );
1175 0 : if( FD_UNLIKELY( err ) ) {
1176 0 : return FD_EXECUTOR_INSTR_ERR_MISSING_ACC;
1177 0 : }
1178 :
1179 : /* https://github.com/anza-xyz/agave/blob/v2.2.12/transaction-context/src/lib.rs#L401-L402 */
1180 0 : if( FD_UNLIKELY( !fd_txn_account_try_borrow_mut( sysvar_instructions_account ) ) ) {
1181 0 : return FD_EXECUTOR_INSTR_ERR_ACC_BORROW_FAILED;
1182 0 : }
1183 :
1184 : /* https://github.com/anza-xyz/agave/blob/v2.2.12/transaction-context/src/lib.rs#L403-L406 */
1185 0 : fd_sysvar_instructions_update_current_instr_idx( sysvar_instructions_account, (ushort)runtime->instr.current_idx );
1186 0 : fd_txn_account_drop( sysvar_instructions_account );
1187 0 : }
1188 :
1189 0 : return FD_EXECUTOR_INSTR_SUCCESS;
1190 0 : }
1191 :
1192 : /* Pushes a new instruction onto the instruction stack and trace. This check loops through all instructions in the current call stack
1193 : and checks for reentrancy violations. If successful, simply increments the instruction stack and trace size and returns. It is
1194 : the responsibility of the caller to populate the newly pushed instruction fields, which are undefined otherwise.
1195 :
1196 : https://github.com/anza-xyz/agave/blob/v2.0.0/program-runtime/src/invoke_context.rs#L246-L290 */
1197 : int
1198 : fd_instr_stack_push( fd_runtime_t * runtime,
1199 : fd_txn_in_t const * txn_in,
1200 : fd_txn_out_t * txn_out,
1201 0 : fd_instr_info_t * instr ) {
1202 : /* Agave keeps a vector of vectors called program_indices that stores the program_id index for each instruction within the transaction.
1203 : https://github.com/anza-xyz/agave/blob/v2.1.7/svm/src/account_loader.rs#L347-L402
1204 : If and only if the program_id is the native loader, then the vector for respective specific instruction (account_indices) is empty.
1205 : https://github.com/anza-xyz/agave/blob/v2.1.7/svm/src/account_loader.rs#L350-L358
1206 : While trying to push a new instruction onto the instruction stack, if the vector for the respective instruction is empty, Agave throws UnsupportedProgramId
1207 : https://github.com/anza-xyz/agave/blob/v2.1.7/program-runtime/src/invoke_context.rs#L253-L255
1208 : The only way for the vector to be empty is if the program_id is the native loader, so we can a program_id check here
1209 : */
1210 :
1211 : /* https://github.com/anza-xyz/agave/blob/v2.2.0/program-runtime/src/invoke_context.rs#L250-L252 */
1212 0 : fd_pubkey_t const * program_id_pubkey = NULL;
1213 0 : int err = fd_runtime_get_key_of_account_at_index( txn_out,
1214 0 : instr->program_id,
1215 0 : &program_id_pubkey );
1216 0 : if( FD_UNLIKELY( err ) ) {
1217 0 : return FD_EXECUTOR_INSTR_ERR_UNSUPPORTED_PROGRAM_ID;
1218 0 : }
1219 :
1220 : /* https://github.com/anza-xyz/agave/blob/v2.0.0/program-runtime/src/invoke_context.rs#L256-L286 */
1221 0 : if( runtime->instr.stack_sz ) {
1222 : /* https://github.com/anza-xyz/agave/blob/v2.0.0/program-runtime/src/invoke_context.rs#L261-L285 */
1223 0 : uchar contains = 0;
1224 0 : uchar is_last = 0;
1225 :
1226 : // Checks all previous instructions in the stack for reentrancy
1227 0 : for( uchar level=0; level<runtime->instr.stack_sz; level++ ) {
1228 0 : fd_exec_instr_ctx_t * instr_ctx = &runtime->instr.stack[level];
1229 : // Optimization: compare program id index instead of pubkey since account keys are unique
1230 0 : if( instr->program_id == instr_ctx->instr->program_id ) {
1231 : // Reentrancy not allowed unless caller is calling itself
1232 0 : if( level == runtime->instr.stack_sz-1 ) {
1233 0 : is_last = 1;
1234 0 : }
1235 0 : contains = 1;
1236 0 : }
1237 0 : }
1238 : /* https://github.com/anza-xyz/agave/blob/v2.0.0/program-runtime/src/invoke_context.rs#L282-L285 */
1239 0 : if( FD_UNLIKELY( contains && !is_last ) ) {
1240 0 : return FD_EXECUTOR_INSTR_ERR_REENTRANCY_NOT_ALLOWED;
1241 0 : }
1242 0 : }
1243 : /* "Push" a new instruction onto the stack by simply incrementing the stack and trace size counters
1244 : https://github.com/anza-xyz/agave/blob/v2.0.0/program-runtime/src/invoke_context.rs#L289 */
1245 0 : return fd_txn_ctx_push( runtime, txn_in, txn_out, instr );
1246 0 : }
1247 :
1248 : /* Pops an instruction from the instruction stack. Agave's implementation performs instruction balancing checks every time pop is called,
1249 : but error codes returned from `pop` are only used if the program's execution was successful. Therefore, we can optimize our code by only
1250 : checking for unbalanced instructions if the program execution was successful within fd_execute_instr.
1251 :
1252 : https://github.com/anza-xyz/agave/blob/v2.0.0/program-runtime/src/invoke_context.rs#L293-L298 */
1253 : int
1254 : fd_instr_stack_pop( fd_runtime_t * runtime,
1255 : fd_txn_out_t * txn_out,
1256 0 : fd_instr_info_t const * instr ) {
1257 : /* https://github.com/anza-xyz/agave/blob/v2.0.0/sdk/src/transaction_context.rs#L362-L364 */
1258 0 : if( FD_UNLIKELY( runtime->instr.stack_sz==0 ) ) {
1259 0 : return FD_EXECUTOR_INSTR_ERR_CALL_DEPTH;
1260 0 : }
1261 0 : runtime->instr.stack_sz--;
1262 :
1263 : /* Verify all executable accounts have no outstanding refs
1264 : https://github.com/anza-xyz/agave/blob/v2.1.14/sdk/src/transaction_context.rs#L367-L371 */
1265 0 : for( ushort i=0; i<instr->acct_cnt; i++ ) {
1266 0 : ushort idx_in_txn = instr->accounts[i].index_in_transaction;
1267 0 : fd_txn_account_t * account = &txn_out->accounts.accounts[ idx_in_txn ];
1268 0 : if( FD_UNLIKELY( fd_txn_account_is_executable( account ) &&
1269 0 : fd_txn_account_is_borrowed( account ) ) ) {
1270 0 : return FD_EXECUTOR_INSTR_ERR_ACC_BORROW_OUTSTANDING;
1271 0 : }
1272 0 : }
1273 :
1274 : /* Verify lamports are balanced before and after instruction
1275 : https://github.com/anza-xyz/agave/blob/v2.0.0/sdk/src/transaction_context.rs#L366-L380 */
1276 0 : ulong ending_lamports_h = 0UL;
1277 0 : ulong ending_lamports_l = 0UL;
1278 0 : int err = fd_instr_info_sum_account_lamports( instr,
1279 0 : txn_out,
1280 0 : &ending_lamports_h,
1281 0 : &ending_lamports_l );
1282 0 : if( FD_UNLIKELY( err ) ) {
1283 0 : return err;
1284 0 : }
1285 0 : if( FD_UNLIKELY( ending_lamports_l != instr->starting_lamports_l || ending_lamports_h != instr->starting_lamports_h ) ) {
1286 0 : return FD_EXECUTOR_INSTR_ERR_UNBALANCED_INSTR;
1287 0 : }
1288 :
1289 0 : return FD_EXECUTOR_INSTR_SUCCESS;;
1290 0 : }
1291 :
1292 : /* This function mimics Agave's `.and(self.pop())` functionality,
1293 : where we always pop the instruction stack no matter what the error code is.
1294 : https://github.com/anza-xyz/agave/blob/v2.2.12/program-runtime/src/invoke_context.rs#L480 */
1295 : static inline int
1296 : fd_execute_instr_end( fd_exec_instr_ctx_t * instr_ctx,
1297 : fd_instr_info_t * instr,
1298 0 : int instr_exec_result ) {
1299 0 : int stack_pop_err = fd_instr_stack_pop( instr_ctx->runtime, instr_ctx->txn_out, instr );
1300 :
1301 : /* Only report the stack pop error on success */
1302 0 : if( FD_UNLIKELY( instr_exec_result==FD_EXECUTOR_INSTR_SUCCESS && stack_pop_err ) ) {
1303 0 : FD_TXN_PREPARE_ERR_OVERWRITE( instr_ctx->txn_out );
1304 0 : FD_TXN_ERR_FOR_LOG_INSTR( instr_ctx->txn_out, stack_pop_err, instr_ctx->txn_out->err.exec_err_idx );
1305 0 : instr_exec_result = stack_pop_err;
1306 0 : }
1307 :
1308 0 : return instr_exec_result;
1309 0 : }
1310 :
1311 : int
1312 : fd_execute_instr( fd_runtime_t * runtime,
1313 : fd_bank_t * bank,
1314 : fd_txn_in_t const * txn_in,
1315 : fd_txn_out_t * txn_out,
1316 0 : fd_instr_info_t * instr ) {
1317 0 : fd_sysvar_cache_t const * sysvar_cache = fd_bank_sysvar_cache_query( bank );
1318 0 : int instr_exec_result = fd_instr_stack_push( runtime, txn_in, txn_out, instr );
1319 0 : if( FD_UNLIKELY( instr_exec_result ) ) {
1320 0 : FD_TXN_PREPARE_ERR_OVERWRITE( txn_out );
1321 0 : FD_TXN_ERR_FOR_LOG_INSTR( txn_out, instr_exec_result, txn_out->err.exec_err_idx );
1322 0 : return instr_exec_result;
1323 0 : }
1324 :
1325 : /* `process_executable_chain()`
1326 : https://github.com/anza-xyz/agave/blob/v2.2.12/program-runtime/src/invoke_context.rs#L512-L619 */
1327 0 : fd_exec_instr_ctx_t * ctx = &runtime->instr.stack[ runtime->instr.stack_sz - 1 ];
1328 0 : *ctx = (fd_exec_instr_ctx_t) {
1329 0 : .instr = instr,
1330 0 : .sysvar_cache = sysvar_cache,
1331 0 : .runtime = runtime,
1332 0 : .txn_in = txn_in,
1333 0 : .txn_out = txn_out,
1334 0 : .bank = bank,
1335 0 : };
1336 0 : fd_base58_encode_32( txn_out->accounts.accounts[ instr->program_id ].pubkey->uc, NULL, ctx->program_id_base58 );
1337 :
1338 : /* Look up the native program. We check for precompiles within the lookup function as well.
1339 : https://github.com/anza-xyz/agave/blob/v2.1.6/svm/src/message_processor.rs#L88 */
1340 0 : fd_exec_instr_fn_t native_prog_fn;
1341 0 : uchar is_precompile;
1342 0 : int err = fd_executor_lookup_native_program( &txn_out->accounts.accounts[ instr->program_id ],
1343 0 : bank,
1344 0 : &native_prog_fn,
1345 0 : &is_precompile );
1346 :
1347 0 : if( FD_UNLIKELY( err ) ) {
1348 0 : FD_TXN_PREPARE_ERR_OVERWRITE( txn_out );
1349 0 : FD_TXN_ERR_FOR_LOG_INSTR( txn_out, err, txn_out->err.exec_err_idx );
1350 0 : return err;
1351 0 : }
1352 :
1353 0 : if( FD_LIKELY( native_prog_fn!=NULL ) ) {
1354 : /* If this branch is taken, we've found an entrypoint to execute. */
1355 0 : fd_log_collector_program_invoke( ctx );
1356 :
1357 : /* Only reset the return data when executing a native builtin program (not a precompile)
1358 : https://github.com/anza-xyz/agave/blob/v2.1.6/program-runtime/src/invoke_context.rs#L536-L537 */
1359 0 : if( FD_LIKELY( !is_precompile ) ) {
1360 0 : txn_out->details.return_data.len = 0;
1361 0 : }
1362 :
1363 : /* Execute the native program. */
1364 0 : instr_exec_result = native_prog_fn( ctx );
1365 0 : } else {
1366 : /* Unknown program. In this case specifically, we should not log the program id. */
1367 0 : instr_exec_result = FD_EXECUTOR_INSTR_ERR_UNSUPPORTED_PROGRAM_ID;
1368 0 : FD_TXN_PREPARE_ERR_OVERWRITE( txn_out );
1369 0 : FD_TXN_ERR_FOR_LOG_INSTR( txn_out, instr_exec_result, txn_out->err.exec_err_idx );
1370 0 : return fd_execute_instr_end( ctx, instr, instr_exec_result );
1371 0 : }
1372 :
1373 0 : if( FD_LIKELY( instr_exec_result==FD_EXECUTOR_INSTR_SUCCESS ) ) {
1374 : /* Log success */
1375 0 : fd_log_collector_program_success( ctx );
1376 0 : } else {
1377 : /* Log failure cases.
1378 : We assume that the correct type of error is stored in ctx.
1379 : Syscalls are expected to log when the error is generated, while
1380 : native programs will be logged here.
1381 : (This is because syscall errors often carry data with them.)
1382 :
1383 : TODO: This hackily handles cases where the exec_err and exec_err_kind
1384 : is not set yet. We should change our native programs to set
1385 : this in their respective processors. */
1386 0 : if( !txn_out->err.exec_err ) {
1387 0 : FD_TXN_PREPARE_ERR_OVERWRITE( txn_out );
1388 0 : FD_TXN_ERR_FOR_LOG_INSTR( txn_out, instr_exec_result, txn_out->err.exec_err_idx );
1389 0 : fd_log_collector_program_failure( ctx );
1390 0 : } else {
1391 0 : fd_log_collector_program_failure( ctx );
1392 0 : FD_TXN_PREPARE_ERR_OVERWRITE( txn_out );
1393 0 : FD_TXN_ERR_FOR_LOG_INSTR( txn_out, instr_exec_result, txn_out->err.exec_err_idx );
1394 0 : }
1395 0 : }
1396 :
1397 0 : return fd_execute_instr_end( ctx, instr, instr_exec_result );
1398 0 : }
1399 :
1400 : void
1401 : fd_executor_reclaim_account( fd_txn_account_t * account,
1402 0 : ulong slot ) {
1403 0 : fd_txn_account_set_slot( account, slot );
1404 0 : if( FD_UNLIKELY( fd_txn_account_get_lamports( account )==0UL ) ) {
1405 0 : fd_txn_account_set_data_len( account, 0UL );
1406 0 : fd_txn_account_clear_owner( account );
1407 0 : }
1408 0 : }
1409 :
1410 : static fd_txn_account_t *
1411 : fd_executor_setup_txn_account( fd_runtime_t * runtime,
1412 : fd_bank_t * bank,
1413 : fd_txn_in_t const * txn_in,
1414 : fd_txn_out_t * txn_out,
1415 0 : ushort idx ) {
1416 :
1417 : /* To setup a transaction account, we need to first retrieve a
1418 : read-only handle to the account from the database. */
1419 :
1420 0 : fd_pubkey_t * acc = &txn_out->accounts.account_keys[ idx ];
1421 :
1422 :
1423 0 : fd_account_meta_t const * meta = NULL;
1424 0 : if( txn_in->bundle.is_bundle ) {
1425 : /* If we are in a bundle, that means that the latest version of an
1426 : account may be a transaction account from a previous transaction
1427 : and not in the accounts database. This means we have to
1428 : reference the previous transaction's account. Because we are in
1429 : a bundle, we know that the transaction accounts for all previous
1430 : bundle transactions are valid. We will also assume that the
1431 : transactions are in execution order.
1432 :
1433 : TODO: This lookup can be made more performant by using a map
1434 : from pubkey to the bundle transaction index and only inserting
1435 : or updating when the account is writable. */
1436 :
1437 0 : int is_found = 0;
1438 0 : for( ulong i=txn_in->bundle.prev_txn_cnt; i>0UL && !is_found; i-- ) {
1439 0 : fd_txn_in_t const * prev_txn_in = txn_in->bundle.prev_txn_ins[ i-1 ];
1440 0 : fd_txn_out_t const * prev_txn_out = txn_in->bundle.prev_txn_outs[ i-1 ];
1441 0 : for( ushort j=0UL; j<prev_txn_out->accounts.accounts_cnt; j++ ) {
1442 0 : if( !memcmp( &prev_txn_out->accounts.account_keys[ j ], acc, sizeof(fd_pubkey_t) ) && fd_runtime_account_is_writable_idx( prev_txn_in, prev_txn_out, bank, j ) ) {
1443 : /* Found the account in a previous transaction */
1444 0 : meta = prev_txn_out->accounts.accounts[ j ].meta;
1445 0 : is_found = 1;
1446 0 : break;
1447 0 : }
1448 0 : }
1449 0 : }
1450 0 : }
1451 :
1452 0 : int err = FD_ACC_MGR_SUCCESS;
1453 0 : if( FD_LIKELY( !meta ) ) {
1454 0 : fd_funk_txn_xid_t xid = { .ul = { fd_bank_slot_get( bank ), bank->idx } };
1455 0 : meta = fd_funk_get_acc_meta_readonly(
1456 0 : runtime->funk,
1457 0 : &xid,
1458 0 : acc,
1459 0 : NULL,
1460 0 : &err,
1461 0 : NULL );
1462 0 : }
1463 : /* If there is an error with a read from the accounts database, it is
1464 : unexpected unless the account does not exist. */
1465 0 : if( FD_UNLIKELY( err!=FD_ACC_MGR_SUCCESS && err!=FD_ACC_MGR_ERR_UNKNOWN_ACCOUNT ) ) {
1466 0 : FD_LOG_CRIT(( "fd_txn_account_init_from_funk_readonly err=%d", err ));
1467 0 : }
1468 :
1469 0 : fd_txn_account_t * txn_account = &txn_out->accounts.accounts[ idx ];
1470 0 : int is_writable = fd_runtime_account_is_writable_idx( txn_in, txn_out, bank, idx ) || idx==FD_FEE_PAYER_TXN_IDX;
1471 0 : fd_account_meta_t * account_meta = NULL;
1472 :
1473 0 : if( is_writable ) {
1474 : /* If the account is writable or a fee payer, then we need to create
1475 : staging regions for the account. If the account exists, we need to
1476 : copy the account data into the staging area; otherwise, we need to
1477 : initialize a new metadata. */
1478 :
1479 0 : uchar * new_raw_data = txn_in->exec_accounts->accounts_mem[idx];
1480 0 : ulong dlen = !!meta ? meta->dlen : 0UL;
1481 :
1482 0 : if( FD_LIKELY( meta ) ) {
1483 : /* Account exists, copy the data into the staging area */
1484 0 : fd_memcpy( new_raw_data, (uchar *)meta, sizeof(fd_account_meta_t)+dlen );
1485 0 : } else {
1486 : /* Account did not exist, set up metadata */
1487 0 : fd_account_meta_init( (fd_account_meta_t *)new_raw_data );
1488 0 : }
1489 :
1490 0 : account_meta = (fd_account_meta_t *)new_raw_data;
1491 :
1492 0 : } else {
1493 : /* If the account is not writable, then we can simply initialize
1494 : the txn account with the read-only accountsdb record. However,
1495 : if the account does not exist, we need to initialize a new
1496 : metadata. */
1497 :
1498 0 : if( FD_LIKELY( err==FD_ACC_MGR_SUCCESS ) ) {
1499 0 : account_meta = (fd_account_meta_t *)meta;
1500 0 : } else {
1501 0 : uchar * mem = txn_in->exec_accounts->accounts_mem[idx];
1502 0 : account_meta = (fd_account_meta_t *)mem;
1503 0 : fd_account_meta_init( account_meta );
1504 0 : }
1505 0 : }
1506 :
1507 0 : if( FD_UNLIKELY( !fd_txn_account_join( fd_txn_account_new(
1508 0 : txn_account,
1509 0 : acc,
1510 0 : account_meta,
1511 0 : is_writable ) ) ) ) {
1512 0 : FD_LOG_CRIT(( "Failed to join txn account" ));
1513 0 : }
1514 :
1515 0 : return txn_account;
1516 0 : }
1517 :
1518 : static void
1519 : fd_executor_setup_executable_account( fd_runtime_t * runtime,
1520 : fd_bank_t * bank,
1521 : fd_txn_account_t const * account,
1522 0 : ushort * executable_idx ) {
1523 0 : fd_bpf_upgradeable_loader_state_t program_loader_state[1];
1524 0 : int err = fd_bpf_loader_program_get_state( account, program_loader_state );
1525 0 : if( FD_UNLIKELY( err!=FD_EXECUTOR_INSTR_SUCCESS ) ) {
1526 0 : return;
1527 0 : }
1528 :
1529 0 : if( !fd_bpf_upgradeable_loader_state_is_program( program_loader_state ) ) {
1530 0 : return;
1531 0 : }
1532 :
1533 : /* Attempt to load the program data account from funk. This prevents any unknown program
1534 : data accounts from getting loaded into the executable accounts list. If such a program is
1535 : invoked, the call will fail at the instruction execution level since the programdata
1536 : account will not exist within the executable accounts list. */
1537 0 : fd_pubkey_t * programdata_acc = &program_loader_state->inner.program.programdata_address;
1538 0 : fd_funk_txn_xid_t xid = { .ul = { fd_bank_slot_get( bank ), bank->idx } };
1539 0 : if( FD_LIKELY( fd_txn_account_init_from_funk_readonly( &runtime->executable.accounts[ *executable_idx ],
1540 0 : programdata_acc,
1541 0 : runtime->funk,
1542 0 : &xid )==0 ) ) {
1543 0 : (*executable_idx)++;
1544 0 : }
1545 0 : }
1546 :
1547 : void
1548 : fd_executor_setup_accounts_for_txn( fd_runtime_t * runtime,
1549 : fd_bank_t * bank,
1550 : fd_txn_in_t const * txn_in,
1551 0 : fd_txn_out_t * txn_out ) {
1552 :
1553 0 : ushort executable_idx = 0U;
1554 0 : fd_memset( txn_out->accounts.accounts, 0, sizeof(fd_txn_account_t) * txn_out->accounts.accounts_cnt );
1555 :
1556 0 : for( ushort i=0; i<txn_out->accounts.accounts_cnt; i++ ) {
1557 0 : fd_txn_account_t * txn_account = fd_executor_setup_txn_account( runtime, bank, txn_in, txn_out, i );
1558 :
1559 0 : if( FD_UNLIKELY( txn_account &&
1560 0 : memcmp( fd_txn_account_get_owner( txn_account ), fd_solana_bpf_loader_upgradeable_program_id.key, sizeof(fd_pubkey_t) ) == 0 ) ) {
1561 0 : fd_executor_setup_executable_account( runtime, bank, txn_account, &executable_idx );
1562 0 : }
1563 0 : }
1564 :
1565 0 : # if FD_HAS_FLATCC
1566 : /* Dumping ELF files to protobuf, if applicable */
1567 0 : int dump_elf_to_pb = runtime->log.capture_ctx &&
1568 0 : fd_bank_slot_get( bank ) >= runtime->log.capture_ctx->dump_proto_start_slot &&
1569 0 : runtime->log.capture_ctx->dump_elf_to_pb;
1570 0 : if( FD_UNLIKELY( dump_elf_to_pb ) ) {
1571 0 : for( ushort i=0; i<txn_out->accounts.accounts_cnt; i++ ) {
1572 0 : fd_dump_elf_to_protobuf( runtime, bank, txn_in, &txn_out->accounts.accounts[i] );
1573 0 : }
1574 0 : }
1575 0 : # endif
1576 :
1577 0 : txn_out->accounts.nonce_idx_in_txn = ULONG_MAX;
1578 0 : runtime->executable.cnt = executable_idx;
1579 0 : }
1580 :
1581 : int
1582 : fd_executor_txn_verify( fd_txn_p_t * txn_p,
1583 0 : fd_sha512_t * shas[ FD_TXN_ACTUAL_SIG_MAX ] ) {
1584 0 : fd_txn_t * txn = TXN( txn_p );
1585 :
1586 0 : uchar * signatures = txn_p->payload + txn->signature_off;
1587 0 : uchar * pubkeys = txn_p->payload + txn->acct_addr_off;
1588 0 : uchar * msg = txn_p->payload + txn->message_off;
1589 0 : ulong msg_sz = txn_p->payload_sz - txn->message_off;
1590 :
1591 0 : int res = fd_ed25519_verify_batch_single_msg( msg, msg_sz, signatures, pubkeys, shas, txn->signature_cnt );
1592 0 : if( FD_UNLIKELY( res != FD_ED25519_SUCCESS ) ) {
1593 0 : return FD_RUNTIME_TXN_ERR_SIGNATURE_FAILURE;
1594 0 : }
1595 :
1596 0 : return FD_RUNTIME_EXECUTE_SUCCESS;
1597 0 : }
1598 :
1599 : int
1600 : fd_execute_txn( fd_runtime_t * runtime,
1601 : fd_bank_t * bank,
1602 : fd_txn_in_t const * txn_in,
1603 0 : fd_txn_out_t * txn_out ) {
1604 :
1605 0 : bool dump_insn = runtime->log.capture_ctx && fd_bank_slot_get( bank ) >= runtime->log.capture_ctx->dump_proto_start_slot && runtime->log.capture_ctx->dump_instr_to_pb;
1606 0 : (void)dump_insn;
1607 :
1608 0 : fd_txn_t const * txn = TXN( txn_in->txn );
1609 :
1610 : /* Initialize log collection. */
1611 0 : fd_log_collector_init( runtime->log.log_collector, runtime->log.enable_log_collector );
1612 :
1613 0 : for( ushort i=0; i<TXN( txn_in->txn )->instr_cnt; i++ ) {
1614 : /* Set up the instr info for the current instruction */
1615 0 : fd_instr_info_t * instr_info = &runtime->instr.trace[runtime->instr.trace_length++];
1616 0 : fd_instr_info_init_from_txn_instr(
1617 0 : instr_info,
1618 0 : bank,
1619 0 : txn_in,
1620 0 : txn_out,
1621 0 : &txn->instr[i]
1622 0 : );
1623 :
1624 0 : # if FD_HAS_FLATCC
1625 0 : if( FD_UNLIKELY( dump_insn ) ) {
1626 : // Capture the input and convert it into a Protobuf message
1627 0 : fd_dump_instr_to_protobuf( runtime, bank, txn_in, txn_out, instr_info, i );
1628 0 : }
1629 0 : # endif
1630 :
1631 : /* Update the current executing instruction index */
1632 0 : runtime->instr.current_idx = i;
1633 :
1634 : /* Execute the current instruction */
1635 0 : int instr_exec_result = fd_execute_instr( runtime, bank, txn_in, txn_out, instr_info );
1636 0 : if( FD_UNLIKELY( instr_exec_result!=FD_EXECUTOR_INSTR_SUCCESS ) ) {
1637 0 : if( txn_out->err.exec_err_idx==INT_MAX ) {
1638 0 : txn_out->err.exec_err_idx = i;
1639 0 : }
1640 0 : return FD_RUNTIME_TXN_ERR_INSTRUCTION_ERROR;
1641 0 : }
1642 0 : }
1643 :
1644 : /* TODO: This function needs to be split out of fd_execute_txn and be placed
1645 : into the replay tile once it is implemented. */
1646 0 : return fd_executor_txn_check( bank, txn_out );
1647 0 : }
1648 :
1649 : int
1650 : fd_executor_txn_check( fd_bank_t * bank,
1651 0 : fd_txn_out_t * txn_out ) {
1652 0 : fd_rent_t const * rent = fd_bank_rent_query( bank );
1653 :
1654 0 : ulong starting_lamports_l = 0;
1655 0 : ulong starting_lamports_h = 0;
1656 :
1657 0 : ulong ending_lamports_l = 0;
1658 0 : ulong ending_lamports_h = 0;
1659 :
1660 : /* https://github.com/anza-xyz/agave/blob/b2c388d6cbff9b765d574bbb83a4378a1fc8af32/svm/src/account_rent_state.rs#L63 */
1661 0 : for( ulong idx = 0; idx < txn_out->accounts.accounts_cnt; idx++ ) {
1662 0 : fd_txn_account_t * b = &txn_out->accounts.accounts[idx];
1663 :
1664 : // Was this account written to?
1665 : /* TODO: Clean this logic up... lots of redundant checks with our newer account loading model.
1666 : We should be using the rent transition checking logic instead, along with a small refactor
1667 : to keep check ordering consistent. */
1668 0 : if( fd_txn_account_get_meta( b )!=NULL ) {
1669 0 : fd_uwide_inc( &ending_lamports_h, &ending_lamports_l, ending_lamports_h, ending_lamports_l, fd_txn_account_get_lamports( b ) );
1670 :
1671 : /* Rent states are defined as followed:
1672 : - lamports == 0 -> Uninitialized
1673 : - 0 < lamports < rent_exempt_minimum -> RentPaying
1674 : - lamports >= rent_exempt_minimum -> RentExempt
1675 : In Agave, 'self' refers to our 'after' state. */
1676 0 : uchar after_uninitialized = fd_txn_account_get_lamports( b ) == 0;
1677 0 : uchar after_rent_exempt = fd_txn_account_get_lamports( b ) >= fd_rent_exempt_minimum_balance( rent, fd_txn_account_get_data_len( b ) );
1678 :
1679 : /* https://github.com/anza-xyz/agave/blob/b2c388d6cbff9b765d574bbb83a4378a1fc8af32/svm/src/account_rent_state.rs#L96 */
1680 0 : if( FD_LIKELY( memcmp( b->pubkey->key, fd_sysvar_incinerator_id.key, sizeof(fd_pubkey_t) ) != 0 ) ) {
1681 : /* https://github.com/anza-xyz/agave/blob/b2c388d6cbff9b765d574bbb83a4378a1fc8af32/svm/src/account_rent_state.rs#L44 */
1682 0 : if( after_uninitialized || after_rent_exempt ) {
1683 : // no-op
1684 0 : } else {
1685 : /* https://github.com/anza-xyz/agave/blob/b2c388d6cbff9b765d574bbb83a4378a1fc8af32/svm/src/account_rent_state.rs#L45-L59 */
1686 0 : uchar before_uninitialized = b->starting_dlen == ULONG_MAX || b->starting_lamports == 0;
1687 0 : uchar before_rent_exempt = b->starting_dlen != ULONG_MAX && b->starting_lamports >= fd_rent_exempt_minimum_balance( rent, b->starting_dlen );
1688 :
1689 : /* https://github.com/anza-xyz/agave/blob/b2c388d6cbff9b765d574bbb83a4378a1fc8af32/svm/src/account_rent_state.rs#L50 */
1690 0 : if( before_uninitialized || before_rent_exempt ) {
1691 0 : FD_LOG_DEBUG(( "Rent exempt error for %s Curr len %lu Starting len %lu Curr lamports %lu Starting lamports %lu Curr exempt %lu Starting exempt %lu",
1692 0 : FD_BASE58_ENC_32_ALLOCA( b->pubkey->uc ),
1693 0 : fd_txn_account_get_data_len( b ),
1694 0 : b->starting_dlen,
1695 0 : fd_txn_account_get_lamports( b ),
1696 0 : b->starting_lamports,
1697 0 : fd_rent_exempt_minimum_balance( rent, fd_txn_account_get_data_len( b ) ),
1698 0 : fd_rent_exempt_minimum_balance( rent, b->starting_dlen ) ));
1699 : /* https://github.com/anza-xyz/agave/blob/b2c388d6cbff9b765d574bbb83a4378a1fc8af32/svm/src/account_rent_state.rs#L104 */
1700 0 : return FD_RUNTIME_TXN_ERR_INSUFFICIENT_FUNDS_FOR_RENT;
1701 : /* https://github.com/anza-xyz/agave/blob/b2c388d6cbff9b765d574bbb83a4378a1fc8af32/svm/src/account_rent_state.rs#L56 */
1702 0 : } else if( (fd_txn_account_get_data_len( b ) == b->starting_dlen) && fd_txn_account_get_lamports( b ) <= b->starting_lamports ) {
1703 : // no-op
1704 0 : } else {
1705 0 : FD_LOG_DEBUG(( "Rent exempt error for %s Curr len %lu Starting len %lu Curr lamports %lu Starting lamports %lu Curr exempt %lu Starting exempt %lu",
1706 0 : FD_BASE58_ENC_32_ALLOCA( b->pubkey->uc ),
1707 0 : fd_txn_account_get_data_len( b ),
1708 0 : b->starting_dlen,
1709 0 : fd_txn_account_get_lamports( b ),
1710 0 : b->starting_lamports,
1711 0 : fd_rent_exempt_minimum_balance( rent, fd_txn_account_get_data_len( b ) ),
1712 0 : fd_rent_exempt_minimum_balance( rent, b->starting_dlen ) ));
1713 : /* https://github.com/anza-xyz/agave/blob/b2c388d6cbff9b765d574bbb83a4378a1fc8af32/svm/src/account_rent_state.rs#L104 */
1714 0 : return FD_RUNTIME_TXN_ERR_INSUFFICIENT_FUNDS_FOR_RENT;
1715 0 : }
1716 0 : }
1717 0 : }
1718 :
1719 0 : if( b->starting_lamports != ULONG_MAX ) {
1720 0 : fd_uwide_inc( &starting_lamports_h, &starting_lamports_l, starting_lamports_h, starting_lamports_l, b->starting_lamports );
1721 0 : }
1722 0 : }
1723 0 : }
1724 :
1725 : /* https://github.com/anza-xyz/agave/blob/b2c388d6cbff9b765d574bbb83a4378a1fc8af32/svm/src/transaction_processor.rs#L839-L845 */
1726 0 : if( FD_UNLIKELY( ending_lamports_l!=starting_lamports_l || ending_lamports_h!=starting_lamports_h ) ) {
1727 0 : FD_LOG_DEBUG(( "Lamport sum mismatch: starting %lx%lx ending %lx%lx", starting_lamports_h, starting_lamports_l, ending_lamports_h, ending_lamports_l ));
1728 0 : return FD_RUNTIME_TXN_ERR_UNBALANCED_TRANSACTION;
1729 0 : }
1730 :
1731 0 : return FD_RUNTIME_EXECUTE_SUCCESS;
1732 0 : }
1733 :
1734 : int
1735 : fd_executor_consume_cus( fd_txn_out_t * txn_out,
1736 3 : ulong cus ) {
1737 3 : ulong new_cus = txn_out->details.compute_budget.compute_meter - cus;
1738 3 : int underflow = (txn_out->details.compute_budget.compute_meter < cus);
1739 3 : if( FD_UNLIKELY( underflow ) ) {
1740 0 : txn_out->details.compute_budget.compute_meter = 0UL;
1741 0 : return FD_EXECUTOR_INSTR_ERR_COMPUTE_BUDGET_EXCEEDED;
1742 0 : }
1743 3 : txn_out->details.compute_budget.compute_meter = new_cus;
1744 3 : return FD_EXECUTOR_INSTR_SUCCESS;
1745 3 : }
1746 :
1747 : /* fd_executor_instr_strerror() returns the error message corresponding to err,
1748 : intended to be logged by log_collector, or an empty string if the error code
1749 : should be omitted in logs for whatever reason. Omitted examples are success,
1750 : fatal (placeholder just in firedancer), custom error.
1751 : See also fd_log_collector_program_failure(). */
1752 : FD_FN_CONST char const *
1753 0 : fd_executor_instr_strerror( int err ) {
1754 :
1755 0 : switch( err ) {
1756 0 : case FD_EXECUTOR_INSTR_SUCCESS : return ""; // not used
1757 0 : case FD_EXECUTOR_INSTR_ERR_FATAL : return ""; // not used
1758 0 : case FD_EXECUTOR_INSTR_ERR_GENERIC_ERR : return "generic instruction error";
1759 0 : case FD_EXECUTOR_INSTR_ERR_INVALID_ARG : return "invalid program argument";
1760 0 : case FD_EXECUTOR_INSTR_ERR_INVALID_INSTR_DATA : return "invalid instruction data";
1761 0 : case FD_EXECUTOR_INSTR_ERR_INVALID_ACC_DATA : return "invalid account data for instruction";
1762 0 : case FD_EXECUTOR_INSTR_ERR_ACC_DATA_TOO_SMALL : return "account data too small for instruction";
1763 0 : case FD_EXECUTOR_INSTR_ERR_INSUFFICIENT_FUNDS : return "insufficient funds for instruction";
1764 0 : case FD_EXECUTOR_INSTR_ERR_INCORRECT_PROGRAM_ID : return "incorrect program id for instruction";
1765 0 : case FD_EXECUTOR_INSTR_ERR_MISSING_REQUIRED_SIGNATURE : return "missing required signature for instruction";
1766 0 : case FD_EXECUTOR_INSTR_ERR_ACC_ALREADY_INITIALIZED : return "instruction requires an uninitialized account";
1767 0 : case FD_EXECUTOR_INSTR_ERR_UNINITIALIZED_ACCOUNT : return "instruction requires an initialized account";
1768 0 : case FD_EXECUTOR_INSTR_ERR_UNBALANCED_INSTR : return "sum of account balances before and after instruction do not match";
1769 0 : case FD_EXECUTOR_INSTR_ERR_MODIFIED_PROGRAM_ID : return "instruction illegally modified the program id of an account";
1770 0 : case FD_EXECUTOR_INSTR_ERR_EXTERNAL_ACCOUNT_LAMPORT_SPEND : return "instruction spent from the balance of an account it does not own";
1771 0 : case FD_EXECUTOR_INSTR_ERR_EXTERNAL_DATA_MODIFIED : return "instruction modified data of an account it does not own";
1772 0 : case FD_EXECUTOR_INSTR_ERR_READONLY_LAMPORT_CHANGE : return "instruction changed the balance of a read-only account";
1773 0 : case FD_EXECUTOR_INSTR_ERR_READONLY_DATA_MODIFIED : return "instruction modified data of a read-only account";
1774 0 : case FD_EXECUTOR_INSTR_ERR_DUPLICATE_ACCOUNT_IDX : return "instruction contains duplicate accounts";
1775 0 : case FD_EXECUTOR_INSTR_ERR_EXECUTABLE_MODIFIED : return "instruction changed executable bit of an account";
1776 0 : case FD_EXECUTOR_INSTR_ERR_RENT_EPOCH_MODIFIED : return "instruction modified rent epoch of an account";
1777 0 : case FD_EXECUTOR_INSTR_ERR_NOT_ENOUGH_ACC_KEYS : return "insufficient account keys for instruction";
1778 0 : case FD_EXECUTOR_INSTR_ERR_ACC_DATA_SIZE_CHANGED : return "program other than the account's owner changed the size of the account data";
1779 0 : case FD_EXECUTOR_INSTR_ERR_ACC_NOT_EXECUTABLE : return "instruction expected an executable account";
1780 0 : case FD_EXECUTOR_INSTR_ERR_ACC_BORROW_FAILED : return "instruction tries to borrow reference for an account which is already borrowed";
1781 0 : case FD_EXECUTOR_INSTR_ERR_ACC_BORROW_OUTSTANDING : return "instruction left account with an outstanding borrowed reference";
1782 0 : case FD_EXECUTOR_INSTR_ERR_DUPLICATE_ACCOUNT_OUT_OF_SYNC : return "instruction modifications of multiply-passed account differ";
1783 0 : case FD_EXECUTOR_INSTR_ERR_CUSTOM_ERR : return ""; // custom handling via txn_ctx->err.custom_err
1784 0 : case FD_EXECUTOR_INSTR_ERR_INVALID_ERR : return "program returned invalid error code";
1785 0 : case FD_EXECUTOR_INSTR_ERR_EXECUTABLE_DATA_MODIFIED : return "instruction changed executable accounts data";
1786 0 : case FD_EXECUTOR_INSTR_ERR_EXECUTABLE_LAMPORT_CHANGE : return "instruction changed the balance of an executable account";
1787 0 : case FD_EXECUTOR_INSTR_ERR_EXECUTABLE_ACCOUNT_NOT_RENT_EXEMPT : return "executable accounts must be rent exempt";
1788 0 : case FD_EXECUTOR_INSTR_ERR_UNSUPPORTED_PROGRAM_ID : return "Unsupported program id";
1789 0 : case FD_EXECUTOR_INSTR_ERR_CALL_DEPTH : return "Cross-program invocation call depth too deep";
1790 0 : case FD_EXECUTOR_INSTR_ERR_MISSING_ACC : return "An account required by the instruction is missing";
1791 0 : case FD_EXECUTOR_INSTR_ERR_REENTRANCY_NOT_ALLOWED : return "Cross-program invocation reentrancy not allowed for this instruction";
1792 0 : case FD_EXECUTOR_INSTR_ERR_MAX_SEED_LENGTH_EXCEEDED : return "Length of the seed is too long for address generation";
1793 0 : case FD_EXECUTOR_INSTR_ERR_INVALID_SEEDS : return "Provided seeds do not result in a valid address";
1794 0 : case FD_EXECUTOR_INSTR_ERR_INVALID_REALLOC : return "Failed to reallocate account data";
1795 0 : case FD_EXECUTOR_INSTR_ERR_COMPUTE_BUDGET_EXCEEDED : return "Computational budget exceeded";
1796 0 : case FD_EXECUTOR_INSTR_ERR_PRIVILEGE_ESCALATION : return "Cross-program invocation with unauthorized signer or writable account";
1797 0 : case FD_EXECUTOR_INSTR_ERR_PROGRAM_ENVIRONMENT_SETUP_FAILURE : return "Failed to create program execution environment";
1798 0 : case FD_EXECUTOR_INSTR_ERR_PROGRAM_FAILED_TO_COMPLETE : return "Program failed to complete";
1799 0 : case FD_EXECUTOR_INSTR_ERR_PROGRAM_FAILED_TO_COMPILE : return "Program failed to compile";
1800 0 : case FD_EXECUTOR_INSTR_ERR_ACC_IMMUTABLE : return "Account is immutable";
1801 0 : case FD_EXECUTOR_INSTR_ERR_INCORRECT_AUTHORITY : return "Incorrect authority provided";
1802 0 : case FD_EXECUTOR_INSTR_ERR_BORSH_IO_ERROR : return "Failed to serialize or deserialize account data"; // truncated
1803 0 : case FD_EXECUTOR_INSTR_ERR_ACC_NOT_RENT_EXEMPT : return "An account does not have enough lamports to be rent-exempt";
1804 0 : case FD_EXECUTOR_INSTR_ERR_INVALID_ACC_OWNER : return "Invalid account owner";
1805 0 : case FD_EXECUTOR_INSTR_ERR_ARITHMETIC_OVERFLOW : return "Program arithmetic overflowed";
1806 0 : case FD_EXECUTOR_INSTR_ERR_UNSUPPORTED_SYSVAR : return "Unsupported sysvar";
1807 0 : case FD_EXECUTOR_INSTR_ERR_ILLEGAL_OWNER : return "Provided owner is not allowed";
1808 0 : case FD_EXECUTOR_INSTR_ERR_MAX_ACCS_DATA_ALLOCS_EXCEEDED : return "Accounts data allocations exceeded the maximum allowed per transaction";
1809 0 : case FD_EXECUTOR_INSTR_ERR_MAX_ACCS_EXCEEDED : return "Max accounts exceeded";
1810 0 : case FD_EXECUTOR_INSTR_ERR_MAX_INSN_TRACE_LENS_EXCEEDED : return "Max instruction trace length exceeded";
1811 0 : case FD_EXECUTOR_INSTR_ERR_BUILTINS_MUST_CONSUME_CUS : return "Builtin programs must consume compute units";
1812 0 : default: break;
1813 0 : }
1814 :
1815 0 : return "";
1816 0 : }
1817 :
1818 : // This is purely linker magic to force the inclusion of the yaml type walker so that it is
1819 : // available for debuggers
1820 : void
1821 0 : fd_debug_symbology(void) {
1822 0 : (void)fd_get_types_yaml();
1823 0 : }
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