Line data Source code
1 : #include "fd_system_program.h"
2 : #include "../fd_borrowed_account.h"
3 : #include "../fd_acc_mgr.h"
4 : #include "../fd_system_ids.h"
5 : #include "../sysvar/fd_sysvar_rent.h"
6 : #include "../sysvar/fd_sysvar_recent_hashes.h"
7 : #include "../../log_collector/fd_log_collector.h"
8 :
9 : static int
10 : require_acct( fd_exec_instr_ctx_t * ctx,
11 : ushort idx,
12 0 : fd_pubkey_t const * pubkey ) {
13 :
14 : /* https://github.com/anza-xyz/agave/blob/v2.1.14/program-runtime/src/sysvar_cache.rs#L290-L294 */
15 0 : fd_pubkey_t const * acc_key = NULL;
16 0 : int err = fd_exec_instr_ctx_get_key_of_account_at_index( ctx, idx, &acc_key );
17 0 : if( FD_UNLIKELY( err ) ) return err;
18 :
19 0 : if( FD_UNLIKELY( 0!=memcmp( acc_key, pubkey->uc, sizeof(fd_pubkey_t) ) ) )
20 0 : return FD_EXECUTOR_INSTR_ERR_INVALID_ARG;
21 :
22 0 : return FD_EXECUTOR_INSTR_SUCCESS;
23 0 : }
24 :
25 : static int
26 : require_acct_rent( fd_exec_instr_ctx_t * ctx,
27 : ushort idx,
28 0 : fd_rent_t * rent ) {
29 :
30 0 : do {
31 0 : int err = require_acct( ctx, idx, &fd_sysvar_rent_id );
32 0 : if( FD_UNLIKELY( err ) ) return err;
33 0 : } while(0);
34 :
35 0 : if( FD_UNLIKELY( !fd_sysvar_cache_rent_read( ctx->sysvar_cache, rent ) ) )
36 0 : return FD_EXECUTOR_INSTR_ERR_UNSUPPORTED_SYSVAR;
37 :
38 0 : return FD_EXECUTOR_INSTR_SUCCESS;
39 0 : }
40 :
41 : static int
42 : require_acct_recent_blockhashes( fd_exec_instr_ctx_t * ctx,
43 0 : ushort idx ) {
44 0 : int err = require_acct( ctx, idx, &fd_sysvar_recent_block_hashes_id );
45 0 : if( FD_UNLIKELY( err ) ) return err;
46 :
47 0 : if( FD_UNLIKELY( !fd_sysvar_cache_recent_hashes_is_valid( ctx->sysvar_cache ) ) ) {
48 0 : return FD_EXECUTOR_INSTR_ERR_UNSUPPORTED_SYSVAR;
49 0 : }
50 :
51 0 : return FD_EXECUTOR_INSTR_SUCCESS;
52 0 : }
53 :
54 : /* most_recent_block_hash mirrors
55 : solana_runtime::bank::Bank::last_blockhash_and_lamports_per_signature
56 :
57 : https://github.com/solana-labs/solana/blob/v1.17.23/runtime/src/bank.rs#L4033-L4040 */
58 :
59 : static int
60 : most_recent_block_hash( fd_exec_instr_ctx_t * ctx,
61 0 : fd_blockhash_info_t * out ) {
62 : /* The environment config blockhash comes from `bank.last_blockhash_and_lamports_per_signature()`,
63 : which takes the top element from the blockhash queue.
64 : https://github.com/anza-xyz/agave/blob/v2.1.6/programs/system/src/system_instruction.rs#L47 */
65 0 : fd_blockhashes_t const * blockhashes = fd_bank_block_hash_queue_query( ctx->bank );
66 0 : fd_blockhash_info_t const * last_bhash_info = fd_blockhashes_peek_last( blockhashes );
67 0 : if( FD_UNLIKELY( last_bhash_info==NULL ) ) {
68 : // Agave panics if this blockhash was never set at the start of the txn batch
69 0 : ctx->txn_out->err.custom_err = FD_SYSTEM_PROGRAM_ERR_NONCE_NO_RECENT_BLOCKHASHES;
70 0 : return FD_EXECUTOR_INSTR_ERR_CUSTOM_ERR;
71 0 : }
72 :
73 0 : *out = *last_bhash_info;
74 0 : return FD_EXECUTOR_INSTR_SUCCESS;
75 0 : }
76 :
77 : static void
78 : fd_durable_nonce_from_blockhash( fd_hash_t * out,
79 0 : fd_hash_t const * blockhash ) {
80 0 : uchar buf[45];
81 0 : memcpy( buf, "DURABLE_NONCE", 13UL );
82 0 : memcpy( buf+13, blockhash, sizeof(fd_hash_t) );
83 0 : fd_sha256_hash( buf, sizeof(buf), out );
84 0 : }
85 :
86 : /* fd_system_program_set_nonce_state is a helper for updating the
87 : contents of a nonce account.
88 :
89 : Matches solana_sdk::transaction_context::BorrowedAccount::set_state
90 : https://github.com/solana-labs/solana/blob/v1.17.23/sdk/src/transaction_context.rs#L1020-L1029 */
91 :
92 : static int
93 : fd_system_program_set_nonce_state( fd_borrowed_account_t * account,
94 0 : fd_nonce_state_versions_t const * new_state ) {
95 :
96 : /* https://github.com/solana-labs/solana/blob/v1.17.23/sdk/src/transaction_context.rs#L1021
97 : => https://github.com/solana-labs/solana/blob/v1.17.23/sdk/src/transaction_context.rs#L868 */
98 :
99 0 : uchar * data = NULL;
100 0 : ulong dlen = 0UL;
101 0 : int err = fd_borrowed_account_get_data_mut( account, &data, &dlen );
102 0 : if( FD_UNLIKELY( err ) ) return err;
103 :
104 : /* https://github.com/solana-labs/solana/blob/v1.17.23/sdk/src/transaction_context.rs#L1024-L1026 */
105 :
106 0 : if( FD_UNLIKELY( fd_nonce_state_versions_size( new_state ) > fd_borrowed_account_get_data_len( account ) ) )
107 0 : return FD_EXECUTOR_INSTR_ERR_ACC_DATA_TOO_SMALL;
108 :
109 : /* https://github.com/solana-labs/solana/blob/v1.17.23/sdk/src/transaction_context.rs#L1027 */
110 :
111 0 : do {
112 0 : fd_bincode_encode_ctx_t encode =
113 0 : { .data = data,
114 0 : .dataend = data + dlen };
115 0 : int err = fd_nonce_state_versions_encode( new_state, &encode );
116 0 : if( FD_UNLIKELY( err ) ) {
117 0 : return FD_EXECUTOR_INSTR_ERR_GENERIC_ERR;
118 0 : }
119 0 : } while(0);
120 :
121 0 : return FD_EXECUTOR_INSTR_SUCCESS;
122 0 : }
123 :
124 : /* https://github.com/solana-labs/solana/blob/v1.17.23/programs/system/src/system_instruction.rs#L20-L70
125 :
126 : Matches Solana Labs system_instruction::advance_nonce_account */
127 :
128 : static int
129 : fd_system_program_advance_nonce_account( fd_exec_instr_ctx_t * ctx,
130 : fd_borrowed_account_t * account,
131 0 : ushort instr_acc_idx ) {
132 :
133 : /* https://github.com/solana-labs/solana/blob/v1.17.23/programs/system/src/system_instruction.rs#L25-L32 */
134 :
135 0 : if( FD_UNLIKELY( !fd_instr_acc_is_writable_idx( ctx->instr, instr_acc_idx ) ) ) {
136 : /* Max msg_sz: 50 - 2 + 45 = 93 < 127 => we can use printf */
137 0 : fd_log_collector_printf_dangerous_max_127( ctx,
138 0 : "Advance nonce account: Account %s must be writeable", FD_BASE58_ENC_32_ALLOCA( account->acct->pubkey) );
139 0 : return FD_EXECUTOR_INSTR_ERR_INVALID_ARG;
140 0 : }
141 :
142 : /* https://github.com/solana-labs/solana/blob/v1.17.23/programs/system/src/system_instruction.rs#L34 */
143 :
144 0 : fd_nonce_state_versions_t versions[1];
145 0 : if( FD_UNLIKELY( !fd_bincode_decode_static(
146 0 : nonce_state_versions, versions,
147 0 : fd_borrowed_account_get_data( account ),
148 0 : fd_borrowed_account_get_data_len( account ),
149 0 : NULL ) ) ) {
150 0 : return FD_EXECUTOR_INSTR_ERR_INVALID_ACC_DATA;
151 0 : }
152 :
153 : /* https://github.com/solana-labs/solana/blob/v1.17.23/programs/system/src/system_instruction.rs#L35 */
154 :
155 0 : fd_nonce_state_t * state = NULL;
156 0 : switch( versions->discriminant ) {
157 0 : case fd_nonce_state_versions_enum_legacy:
158 0 : state = &versions->inner.legacy;
159 0 : break;
160 0 : case fd_nonce_state_versions_enum_current:
161 0 : state = &versions->inner.current;
162 0 : break;
163 0 : default:
164 0 : __builtin_unreachable();
165 0 : }
166 :
167 0 : switch( state->discriminant ) {
168 :
169 0 : case fd_nonce_state_enum_initialized: {
170 0 : fd_nonce_data_t * data = &state->inner.initialized;
171 :
172 : /* https://github.com/solana-labs/solana/blob/v1.17.23/programs/system/src/system_instruction.rs#L37-L44 */
173 :
174 0 : if( FD_UNLIKELY( !fd_exec_instr_ctx_any_signed( ctx, &data->authority ) ) ) {
175 : /* Max msg_sz: 50 - 2 + 45 = 93 < 127 => we can use printf */
176 0 : fd_log_collector_printf_dangerous_max_127( ctx,
177 0 : "Advance nonce account: Account %s must be a signer", FD_BASE58_ENC_32_ALLOCA( &data->authority ) );
178 0 : return FD_EXECUTOR_INSTR_ERR_MISSING_REQUIRED_SIGNATURE;
179 0 : }
180 :
181 : /* https://github.com/solana-labs/solana/blob/v1.17.23/programs/system/src/system_instruction.rs#L45 */
182 :
183 0 : fd_blockhash_info_t blockhash[1];
184 0 : do {
185 0 : int err = most_recent_block_hash( ctx, blockhash );
186 0 : if( FD_UNLIKELY( err ) ) return err;
187 0 : } while(0);
188 :
189 0 : fd_hash_t next_durable_nonce;
190 0 : fd_durable_nonce_from_blockhash( &next_durable_nonce, &blockhash->hash );
191 :
192 : /* https://github.com/solana-labs/solana/blob/v1.17.23/programs/system/src/system_instruction.rs#L46-L52 */
193 :
194 0 : if( FD_UNLIKELY( 0==memcmp( data->durable_nonce.hash, next_durable_nonce.hash, sizeof(fd_hash_t) ) ) ) {
195 0 : fd_log_collector_msg_literal( ctx, "Advance nonce account: nonce can only advance once per slot" );
196 0 : ctx->txn_out->err.custom_err = FD_SYSTEM_PROGRAM_ERR_NONCE_BLOCKHASH_NOT_EXPIRED;
197 0 : return FD_EXECUTOR_INSTR_ERR_CUSTOM_ERR;
198 0 : }
199 :
200 : /* https://github.com/anza-xyz/agave/blob/v3.0.3/programs/system/src/system_instruction.rs#L57-L63 */
201 :
202 0 : fd_nonce_state_versions_t new_state = {
203 0 : .discriminant = fd_nonce_state_versions_enum_current,
204 0 : .inner = { .current = {
205 0 : .discriminant = fd_nonce_state_enum_initialized,
206 0 : .inner = { .initialized = {
207 0 : .authority = data->authority,
208 0 : .durable_nonce = next_durable_nonce,
209 0 : .fee_calculator = {
210 0 : .lamports_per_signature = blockhash->fee_calculator.lamports_per_signature
211 0 : }
212 0 : } }
213 0 : } }
214 0 : };
215 :
216 : /* https://github.com/solana-labs/solana/blob/v1.17.23/programs/system/src/system_instruction.rs#L59 */
217 :
218 0 : do {
219 0 : int err = fd_system_program_set_nonce_state( account, &new_state );
220 0 : if( FD_UNLIKELY( err ) ) return err;
221 0 : } while(0);
222 :
223 0 : break;
224 0 : }
225 :
226 0 : case fd_nonce_state_enum_uninitialized: {
227 : /* Max msg_sz: 50 - 2 + 45 = 93 < 127 => we can use printf */
228 0 : fd_log_collector_printf_dangerous_max_127( ctx,
229 0 : "Advance nonce account: Account %s state is invalid", FD_BASE58_ENC_32_ALLOCA( account->acct->pubkey ) );
230 0 : return FD_EXECUTOR_INSTR_ERR_INVALID_ACC_DATA;
231 0 : }
232 :
233 0 : } /* switch */
234 :
235 0 : return FD_EXECUTOR_INSTR_SUCCESS;
236 0 : }
237 :
238 : /* https://github.com/solana-labs/solana/blob/v1.17.23/programs/system/src/system_processor.rs#L423-L441
239 :
240 : Matches Solana Labs system_processor SystemInstruction::AdvanceNonceAccount => { ... } */
241 :
242 : int
243 0 : fd_system_program_exec_advance_nonce_account( fd_exec_instr_ctx_t * ctx ) {
244 0 : int err;
245 : /* https://github.com/solana-labs/solana/blob/v1.17.23/programs/system/src/system_processor.rs#L423-L441 */
246 :
247 0 : if( FD_UNLIKELY( ctx->instr->acct_cnt < 1 ) )
248 0 : return FD_EXECUTOR_INSTR_ERR_MISSING_ACC;
249 :
250 : /* https://github.com/solana-labs/solana/blob/v1.17.23/programs/system/src/system_processor.rs#L425-L426 */
251 :
252 0 : uchar const instr_acc_idx = 0;
253 :
254 : /* https://github.com/anza-xyz/agave/blob/v2.1.14/programs/system/src/system_processor.rs#L409-L410 */
255 :
256 0 : fd_guarded_borrowed_account_t account = {0};
257 0 : FD_TRY_BORROW_INSTR_ACCOUNT_DEFAULT_ERR_CHECK( ctx, instr_acc_idx, &account );
258 :
259 : /* https://github.com/solana-labs/solana/blob/v1.17.23/programs/system/src/system_processor.rs#L427-L432 */
260 :
261 0 : err = require_acct_recent_blockhashes( ctx, 1UL );
262 0 : if( FD_UNLIKELY( err ) ) return err;
263 :
264 : /* https://github.com/solana-labs/solana/blob/v1.17.23/programs/system/src/system_processor.rs#L433-L439 */
265 :
266 0 : int bhq_empty;
267 0 : do {
268 0 : fd_block_block_hash_entry_t const * hashes = fd_sysvar_cache_recent_hashes_join_const( ctx->sysvar_cache );
269 0 : if( FD_UNLIKELY( !hashes ) ) __builtin_unreachable(); /* validated above */
270 0 : bhq_empty = deq_fd_block_block_hash_entry_t_empty( hashes );
271 0 : fd_sysvar_cache_recent_hashes_leave_const( ctx->sysvar_cache, hashes );
272 0 : } while(0);
273 0 : if( FD_UNLIKELY( bhq_empty ) ) {
274 0 : fd_log_collector_msg_literal( ctx, "Advance nonce account: recent blockhash list is empty" );
275 0 : ctx->txn_out->err.custom_err = FD_SYSTEM_PROGRAM_ERR_NONCE_NO_RECENT_BLOCKHASHES;
276 0 : return FD_EXECUTOR_INSTR_ERR_CUSTOM_ERR;
277 0 : }
278 :
279 0 : err = fd_system_program_advance_nonce_account( ctx, &account, instr_acc_idx );
280 :
281 : /* Implicit drop */
282 :
283 0 : return err;
284 0 : }
285 :
286 : /* https://github.com/solana-labs/solana/blob/v1.17.23/programs/system/src/system_instruction.rs#L72-L151
287 :
288 : Matches Solana Labs system_instruction::withdraw_nonce_account */
289 :
290 : static int
291 : fd_system_program_withdraw_nonce_account( fd_exec_instr_ctx_t * ctx,
292 : ulong requested_lamports,
293 0 : fd_rent_t const * rent ) {
294 0 : int err;
295 0 : ushort const from_acct_idx = 0UL;
296 0 : ushort const to_acct_idx = 1UL;
297 :
298 : /* https://github.com/solana-labs/solana/blob/v1.17.23/programs/system/src/system_instruction.rs#L82-L83 */
299 :
300 0 : fd_guarded_borrowed_account_t from = {0};
301 0 : FD_TRY_BORROW_INSTR_ACCOUNT_DEFAULT_ERR_CHECK( ctx, from_acct_idx, &from );
302 :
303 : /* https://github.com/solana-labs/solana/blob/v1.17.23/programs/system/src/system_instruction.rs#L84-L91 */
304 :
305 0 : if( FD_UNLIKELY( !fd_instr_acc_is_writable_idx( ctx->instr, from_acct_idx ) ) ) {
306 : /* Max msg_sz: 51 - 2 + 45 = 94 < 127 => we can use printf */
307 0 : fd_log_collector_printf_dangerous_max_127( ctx,
308 0 : "Withdraw nonce account: Account %s must be writeable", FD_BASE58_ENC_32_ALLOCA( from.acct->pubkey ) );
309 0 : return FD_EXECUTOR_INSTR_ERR_INVALID_ARG;
310 0 : }
311 :
312 : /* https://github.com/solana-labs/solana/blob/v1.17.23/programs/system/src/system_instruction.rs#L93 */
313 :
314 0 : fd_nonce_state_versions_t versions[1];
315 0 : if( FD_UNLIKELY( !fd_bincode_decode_static(
316 0 : nonce_state_versions, versions,
317 0 : fd_borrowed_account_get_data( &from ),
318 0 : fd_borrowed_account_get_data_len( &from ),
319 0 : NULL ) ) ) {
320 0 : return FD_EXECUTOR_INSTR_ERR_INVALID_ACC_DATA;
321 0 : }
322 :
323 : /* https://github.com/solana-labs/solana/blob/v1.17.23/programs/system/src/system_instruction.rs#L94 */
324 :
325 0 : fd_nonce_state_t * state = NULL;
326 0 : switch( versions->discriminant ) {
327 0 : case fd_nonce_state_versions_enum_legacy:
328 0 : state = &versions->inner.legacy;
329 0 : break;
330 0 : case fd_nonce_state_versions_enum_current:
331 0 : state = &versions->inner.current;
332 0 : break;
333 0 : default:
334 0 : __builtin_unreachable();
335 0 : }
336 :
337 0 : fd_pubkey_t signer[1] = {0};
338 0 : switch( state->discriminant ) {
339 :
340 0 : case fd_nonce_state_enum_uninitialized: {
341 : /* https://github.com/solana-labs/solana/blob/v1.17.23/programs/system/src/system_instruction.rs#L95-L106 */
342 :
343 0 : if( FD_UNLIKELY( requested_lamports > fd_borrowed_account_get_lamports( &from ) ) ) {
344 : /* Max msg_sz: 59 - 6 + 20 + 20 = 93 < 127 => we can use printf */
345 0 : fd_log_collector_printf_dangerous_max_127( ctx,
346 0 : "Withdraw nonce account: insufficient lamports %lu, need %lu", fd_borrowed_account_get_lamports( &from ), requested_lamports );
347 0 : return FD_EXECUTOR_INSTR_ERR_INSUFFICIENT_FUNDS;
348 0 : }
349 :
350 : /* https://github.com/solana-labs/solana/blob/v1.17.23/programs/system/src/system_instruction.rs#L105 */
351 :
352 0 : *signer = *from.acct->pubkey;
353 :
354 0 : break;
355 0 : }
356 :
357 0 : case fd_nonce_state_enum_initialized: {
358 : /* https://github.com/solana-labs/solana/blob/v1.17.23/programs/system/src/system_instruction.rs#L107-L132 */
359 0 : fd_nonce_data_t * data = &state->inner.initialized;
360 :
361 0 : if( requested_lamports == fd_borrowed_account_get_lamports( &from ) ) {
362 : /* https://github.com/solana-labs/solana/blob/v1.17.23/programs/system/src/system_instruction.rs#L108-L117 */
363 :
364 : /* https://github.com/solana-labs/solana/blob/v1.17.23/programs/system/src/system_instruction.rs#L109 */
365 :
366 0 : fd_blockhash_info_t blockhash[1];
367 0 : do {
368 0 : int err = most_recent_block_hash( ctx, blockhash );
369 0 : if( FD_UNLIKELY( err ) ) return err;
370 0 : } while(0);
371 :
372 0 : fd_hash_t next_durable_nonce;
373 0 : fd_durable_nonce_from_blockhash( &next_durable_nonce, &blockhash->hash );
374 :
375 : /* https://github.com/solana-labs/solana/blob/v1.17.23/programs/system/src/system_instruction.rs#L110-L116 */
376 :
377 0 : if( FD_UNLIKELY( 0==memcmp( data->durable_nonce.hash, next_durable_nonce.hash, sizeof(fd_hash_t) ) ) ) {
378 0 : fd_log_collector_msg_literal( ctx, "Withdraw nonce account: nonce can only advance once per slot" );
379 0 : ctx->txn_out->err.custom_err = FD_SYSTEM_PROGRAM_ERR_NONCE_BLOCKHASH_NOT_EXPIRED;
380 0 : return FD_EXECUTOR_INSTR_ERR_CUSTOM_ERR;
381 0 : }
382 :
383 : /* https://github.com/solana-labs/solana/blob/v1.17.23/programs/system/src/system_instruction.rs#L117 */
384 :
385 0 : fd_nonce_state_versions_t new_state[1] = {{
386 0 : .discriminant = fd_nonce_state_versions_enum_current,
387 0 : .inner = { .current = {
388 0 : .discriminant = fd_nonce_state_enum_uninitialized
389 0 : } }
390 0 : }};
391 :
392 0 : do {
393 0 : int err = fd_system_program_set_nonce_state( &from, new_state );
394 0 : if( FD_UNLIKELY( err ) ) return err;
395 0 : } while(0);
396 :
397 0 : } else {
398 : /* https://github.com/solana-labs/solana/blob/v1.17.23/programs/system/src/system_instruction.rs#L118-L130 */
399 :
400 : /* https://github.com/solana-labs/solana/blob/v1.17.23/programs/system/src/system_instruction.rs#L120 */
401 :
402 0 : ulong min_balance = fd_rent_exempt_minimum_balance( rent, fd_borrowed_account_get_data_len( &from ) );
403 :
404 0 : ulong amount;
405 0 : if( FD_UNLIKELY( __builtin_uaddl_overflow( requested_lamports, min_balance, &amount ) ) )
406 0 : return FD_EXECUTOR_INSTR_ERR_INSUFFICIENT_FUNDS;
407 :
408 : /* https://github.com/solana-labs/solana/blob/v1.17.23/programs/system/src/system_instruction.rs#L121-L129 */
409 :
410 0 : if( FD_UNLIKELY( amount > fd_borrowed_account_get_lamports( &from ) ) ) {
411 : /* Max msg_sz: 59 - 6 + 20 + 20 = 93 < 127 => we can use printf */
412 0 : fd_log_collector_printf_dangerous_max_127( ctx,
413 0 : "Withdraw nonce account: insufficient lamports %lu, need %lu", fd_borrowed_account_get_lamports( &from ), amount );
414 0 : return FD_EXECUTOR_INSTR_ERR_INSUFFICIENT_FUNDS;
415 0 : }
416 :
417 0 : }
418 :
419 : /* https://github.com/solana-labs/solana/blob/v1.17.23/programs/system/src/system_instruction.rs#L131 */
420 :
421 0 : *signer = data->authority;
422 :
423 0 : break;
424 0 : }
425 :
426 0 : } /* switch */
427 :
428 : /* https://github.com/solana-labs/solana/blob/v1.17.23/programs/system/src/system_instruction.rs#L135-L142 */
429 :
430 0 : if( FD_UNLIKELY( !fd_exec_instr_ctx_any_signed( ctx, signer ) ) ) {
431 : /* Max msg_sz: 44 - 2 + 45 = 87 < 127 => we can use printf */
432 0 : fd_log_collector_printf_dangerous_max_127( ctx,
433 0 : "Withdraw nonce account: Account %s must sign", FD_BASE58_ENC_32_ALLOCA( signer ) );
434 0 : return FD_EXECUTOR_INSTR_ERR_MISSING_REQUIRED_SIGNATURE;
435 0 : }
436 :
437 : /* https://github.com/solana-labs/solana/blob/v1.17.23/programs/system/src/system_instruction.rs#L144 */
438 :
439 0 : err = fd_borrowed_account_checked_sub_lamports( &from, requested_lamports );
440 0 : if( FD_UNLIKELY( err ) ) return err;
441 :
442 : /* https://github.com/solana-labs/solana/blob/v1.17.23/programs/system/src/system_instruction.rs#L145 */
443 :
444 0 : fd_borrowed_account_drop( &from );
445 :
446 : /* https://github.com/solana-labs/solana/blob/v1.17.23/programs/system/src/system_instruction.rs#L146-L147 */
447 :
448 0 : fd_guarded_borrowed_account_t to = {0};
449 0 : FD_TRY_BORROW_INSTR_ACCOUNT_DEFAULT_ERR_CHECK( ctx, to_acct_idx, &to );
450 :
451 : /* https://github.com/solana-labs/solana/blob/v1.17.23/programs/system/src/system_instruction.rs#L148 */
452 :
453 0 : err = fd_borrowed_account_checked_add_lamports( &to, requested_lamports );
454 0 : if( FD_UNLIKELY( err ) ) return err;
455 :
456 : /* Implicit drop */
457 :
458 0 : return FD_EXECUTOR_INSTR_SUCCESS;
459 0 : }
460 :
461 : /* https://github.com/solana-labs/solana/blob/v1.17.23/programs/system/src/system_processor.rs#L442-L461
462 :
463 : Matches Solana Labs system_processor SystemInstruction::WithdrawNonceAccount { ... } => { ... } */
464 :
465 : int
466 : fd_system_program_exec_withdraw_nonce_account( fd_exec_instr_ctx_t * ctx,
467 0 : ulong requested_lamports ) {
468 :
469 : /* https://github.com/solana-labs/solana/blob/v1.17.23/programs/system/src/system_processor.rs#L443 */
470 :
471 0 : if( FD_UNLIKELY( ctx->instr->acct_cnt < 2 ) )
472 0 : return FD_EXECUTOR_INSTR_ERR_MISSING_ACC;
473 :
474 : /* https://github.com/solana-labs/solana/blob/v1.17.23/programs/system/src/system_processor.rs#L445-L449 */
475 :
476 0 : do {
477 0 : int err = require_acct_recent_blockhashes( ctx, 2UL );
478 0 : if( FD_UNLIKELY( err ) ) return err;
479 0 : } while(0);
480 :
481 : /* https://github.com/solana-labs/solana/blob/v1.17.23/programs/system/src/system_processor.rs#L450 */
482 :
483 0 : fd_rent_t rent[1];
484 0 : do {
485 0 : int err = require_acct_rent( ctx, 3UL, rent );
486 0 : if( FD_UNLIKELY( err ) ) return err;
487 0 : } while(0);
488 :
489 : /* https://github.com/solana-labs/solana/blob/v1.17.23/programs/system/src/system_processor.rs#L451-L460 */
490 :
491 0 : return fd_system_program_withdraw_nonce_account( ctx, requested_lamports, rent );
492 0 : }
493 :
494 : /* https://github.com/solana-labs/solana/blob/v1.17.23/programs/system/src/system_instruction.rs#L153-L198
495 :
496 : Matches Solana Labs system_instruction::initialize_nonce_account */
497 :
498 : static int
499 : fd_system_program_initialize_nonce_account( fd_exec_instr_ctx_t * ctx,
500 : fd_borrowed_account_t * account,
501 : fd_pubkey_t const * authorized,
502 0 : fd_rent_t const * rent ) {
503 :
504 : /* https://github.com/anza-xyz/agave/blob/v2.2.0/programs/system/src/system_instruction.rs#L167-L174 */
505 :
506 0 : if( FD_UNLIKELY( !fd_borrowed_account_is_writable( account ) ) ) {
507 : /* Max msg_sz: 53 - 2 + 45 = 96 < 127 => we can use printf */
508 0 : fd_log_collector_printf_dangerous_max_127( ctx,
509 0 : "Initialize nonce account: Account %s must be writeable", FD_BASE58_ENC_32_ALLOCA( account->acct->pubkey ) );
510 0 : return FD_EXECUTOR_INSTR_ERR_INVALID_ARG;
511 0 : }
512 :
513 : /* https://github.com/solana-labs/solana/blob/v1.17.23/programs/system/src/system_instruction.rs#L168 */
514 :
515 0 : fd_nonce_state_versions_t versions[1];
516 0 : if( FD_UNLIKELY( !fd_bincode_decode_static(
517 0 : nonce_state_versions, versions,
518 0 : fd_borrowed_account_get_data( account ),
519 0 : fd_borrowed_account_get_data_len( account ),
520 0 : NULL ) ) ) {
521 0 : return FD_EXECUTOR_INSTR_ERR_INVALID_ACC_DATA;
522 0 : }
523 :
524 0 : fd_nonce_state_t * state = NULL;
525 0 : switch( versions->discriminant ) {
526 0 : case fd_nonce_state_versions_enum_legacy:
527 0 : state = &versions->inner.legacy;
528 0 : break;
529 0 : case fd_nonce_state_versions_enum_current:
530 0 : state = &versions->inner.current;
531 0 : break;
532 0 : default:
533 0 : __builtin_unreachable();
534 0 : }
535 :
536 0 : switch( state->discriminant ) {
537 :
538 0 : case fd_nonce_state_enum_uninitialized: {
539 : /* https://github.com/solana-labs/solana/blob/v1.17.23/programs/system/src/system_instruction.rs#L169-L188 */
540 :
541 : /* https://github.com/solana-labs/solana/blob/v1.17.23/programs/system/src/system_instruction.rs#L170 */
542 :
543 0 : ulong min_balance = fd_rent_exempt_minimum_balance( rent, fd_borrowed_account_get_data_len( account ) );
544 :
545 : /* https://github.com/solana-labs/solana/blob/v1.17.23/programs/system/src/system_instruction.rs#L171-L179 */
546 :
547 0 : if( FD_UNLIKELY( fd_borrowed_account_get_lamports( account ) < min_balance ) ) {
548 : /* Max msg_sz: 61 - 6 + 20 + 20 = 95 < 127 => we can use printf */
549 0 : fd_log_collector_printf_dangerous_max_127( ctx,
550 0 : "Initialize nonce account: insufficient lamports %lu, need %lu", fd_borrowed_account_get_lamports( account ), min_balance );
551 0 : return FD_EXECUTOR_INSTR_ERR_INSUFFICIENT_FUNDS;
552 0 : }
553 :
554 : /* https://github.com/solana-labs/solana/blob/v1.17.23/programs/system/src/system_instruction.rs#L180 */
555 :
556 0 : fd_blockhash_info_t blockhash[1];
557 0 : do {
558 0 : int err = most_recent_block_hash( ctx, blockhash );
559 0 : if( FD_UNLIKELY( err ) ) return err;
560 0 : } while(0);
561 :
562 0 : fd_hash_t durable_nonce;
563 0 : fd_durable_nonce_from_blockhash( &durable_nonce, &blockhash->hash );
564 :
565 : /* https://github.com/anza-xyz/agave/blob/v3.0.3/programs/system/src/system_instruction.rs#L185-L191 */
566 :
567 0 : fd_nonce_state_versions_t new_state = {
568 0 : .discriminant = fd_nonce_state_versions_enum_current,
569 0 : .inner = { .current = {
570 0 : .discriminant = fd_nonce_state_enum_initialized,
571 0 : .inner = { .initialized = {
572 0 : .authority = *authorized,
573 0 : .durable_nonce = durable_nonce,
574 0 : .fee_calculator = {
575 0 : .lamports_per_signature = blockhash->fee_calculator.lamports_per_signature
576 0 : }
577 0 : } }
578 0 : } }
579 0 : };
580 :
581 : /* https://github.com/solana-labs/solana/blob/v1.17.23/programs/system/src/system_instruction.rs#L187 */
582 :
583 0 : do {
584 0 : int err = fd_system_program_set_nonce_state( account, &new_state );
585 0 : if( FD_UNLIKELY( err ) ) return err;
586 0 : } while(0);
587 :
588 0 : break;
589 0 : }
590 :
591 0 : case fd_nonce_state_enum_initialized: {
592 : /* https://github.com/solana-labs/solana/blob/v1.17.23/programs/system/src/system_instruction.rs#L189-L196 */
593 :
594 : /* Max msg_sz: 53 - 2 + 45 = 96 < 127 => we can use printf */
595 0 : fd_log_collector_printf_dangerous_max_127( ctx,
596 0 : "Initialize nonce account: Account %s state is invalid", FD_BASE58_ENC_32_ALLOCA( account->acct->pubkey ) );
597 :
598 0 : return FD_EXECUTOR_INSTR_ERR_INVALID_ACC_DATA;
599 0 : }
600 :
601 0 : } /* switch */
602 :
603 0 : return FD_EXECUTOR_INSTR_SUCCESS;
604 0 : }
605 :
606 : /* https://github.com/solana-labs/solana/blob/v1.17.23/programs/system/src/system_processor.rs#L462-L481
607 :
608 : Matches Solana Labs system_processor SystemInstruction::InitializeNonceAccount { ... } => { ... } */
609 :
610 : int
611 : fd_system_program_exec_initialize_nonce_account( fd_exec_instr_ctx_t * ctx,
612 0 : fd_pubkey_t const * authorized ) {
613 0 : int err;
614 : /* https://github.com/solana-labs/solana/blob/v1.17.23/programs/system/src/system_processor.rs#L463 */
615 :
616 0 : if( FD_UNLIKELY( ctx->instr->acct_cnt < 1 ) )
617 0 : return FD_EXECUTOR_INSTR_ERR_MISSING_ACC;
618 :
619 : /* https://github.com/solana-labs/solana/blob/v1.17.23/programs/system/src/system_processor.rs#L464-L465 */
620 :
621 0 : uchar const instr_acc_idx = 0;
622 : /* https://github.com/anza-xyz/agave/blob/v2.1.14/programs/system/src/system_processor.rs#L448-L449 */
623 0 : fd_guarded_borrowed_account_t account = {0};
624 0 : FD_TRY_BORROW_INSTR_ACCOUNT_DEFAULT_ERR_CHECK( ctx, instr_acc_idx, &account );
625 :
626 : /* https://github.com/solana-labs/solana/blob/v1.17.23/programs/system/src/system_processor.rs#L466-L471 */
627 :
628 0 : do {
629 0 : err = require_acct_recent_blockhashes( ctx, 1UL );
630 0 : if( FD_UNLIKELY( err ) ) return err;
631 0 : } while(0);
632 :
633 : /* https://github.com/solana-labs/solana/blob/v1.17.23/programs/system/src/system_processor.rs#L472-L478 */
634 :
635 0 : int bhq_empty;
636 0 : do {
637 0 : fd_block_block_hash_entry_t const * hashes = fd_sysvar_cache_recent_hashes_join_const( ctx->sysvar_cache );
638 0 : if( FD_UNLIKELY( !hashes ) ) __builtin_unreachable(); /* validated above */
639 0 : bhq_empty = deq_fd_block_block_hash_entry_t_empty( hashes );
640 0 : fd_sysvar_cache_recent_hashes_leave_const( ctx->sysvar_cache, hashes );
641 0 : } while(0);
642 0 : if( FD_UNLIKELY( bhq_empty ) ) {
643 0 : fd_log_collector_msg_literal( ctx, "Initialize nonce account: recent blockhash list is empty" );
644 0 : ctx->txn_out->err.custom_err = FD_SYSTEM_PROGRAM_ERR_NONCE_NO_RECENT_BLOCKHASHES;
645 0 : return FD_EXECUTOR_INSTR_ERR_CUSTOM_ERR;
646 0 : }
647 :
648 : /* https://github.com/solana-labs/solana/blob/v1.17.23/programs/system/src/system_processor.rs#L479 */
649 :
650 0 : fd_rent_t rent[1];
651 0 : do {
652 0 : err = require_acct_rent( ctx, 2UL, rent );
653 0 : if( FD_UNLIKELY( err ) ) return err;
654 0 : } while(0);
655 :
656 : /* https://github.com/solana-labs/solana/blob/v1.17.23/programs/system/src/system_processor.rs#L480 */
657 :
658 0 : err = fd_system_program_initialize_nonce_account( ctx, &account, authorized, rent );
659 :
660 : /* Implicit drop */
661 :
662 0 : return err;
663 0 : }
664 :
665 : /* https://github.com/solana-labs/solana/blob/v1.17.23/programs/system/src/system_instruction.rs#L200-L236
666 :
667 : Matches Solana Labs system_instruction::authorize_nonce_account */
668 :
669 : static int
670 : fd_system_program_authorize_nonce_account( fd_exec_instr_ctx_t * ctx,
671 : fd_borrowed_account_t * account,
672 : ushort instr_acc_idx,
673 0 : fd_pubkey_t const * nonce_authority ) {
674 :
675 : /* https://github.com/solana-labs/solana/blob/v1.17.23/programs/system/src/system_instruction.rs#L206-L213 */
676 :
677 0 : if( FD_UNLIKELY( !fd_instr_acc_is_writable_idx( ctx->instr, instr_acc_idx ) ) ) {
678 : /* Max msg_sz: 52 - 2 + 45 = 95 < 127 => we can use printf */
679 0 : fd_log_collector_printf_dangerous_max_127( ctx,
680 0 : "Authorize nonce account: Account %s must be writeable", FD_BASE58_ENC_32_ALLOCA( account->acct->pubkey ) );
681 0 : return FD_EXECUTOR_INSTR_ERR_INVALID_ARG;
682 0 : }
683 :
684 : /* https://github.com/solana-labs/solana/blob/v1.17.23/programs/system/src/system_instruction.rs#L214-L215 */
685 :
686 0 : fd_nonce_state_versions_t versions[1];
687 0 : if( FD_UNLIKELY( !fd_bincode_decode_static(
688 0 : nonce_state_versions, versions,
689 0 : fd_borrowed_account_get_data( account ),
690 0 : fd_borrowed_account_get_data_len( account ),
691 0 : NULL ) ) ) {
692 0 : return FD_EXECUTOR_INSTR_ERR_INVALID_ACC_DATA;
693 0 : }
694 :
695 : /* Inlining solana_program::nonce::state::Versions::authorize
696 : https://github.com/solana-labs/solana/blob/v1.17.23/sdk/program/src/nonce/state/mod.rs#L76-L102 */
697 :
698 : /* https://github.com/solana-labs/solana/blob/v1.17.23/sdk/program/src/nonce/state/mod.rs#L81 */
699 :
700 0 : fd_nonce_state_t * state = NULL;
701 0 : switch( versions->discriminant ) {
702 0 : case fd_nonce_state_versions_enum_legacy:
703 0 : state = &versions->inner.legacy;
704 0 : break;
705 0 : case fd_nonce_state_versions_enum_current:
706 0 : state = &versions->inner.current;
707 0 : break;
708 0 : default:
709 0 : __builtin_unreachable();
710 0 : }
711 :
712 : /* https://github.com/solana-labs/solana/blob/v1.17.23/sdk/program/src/nonce/state/mod.rs#L81-L84 */
713 :
714 0 : if( FD_UNLIKELY( state->discriminant != fd_nonce_state_enum_initialized ) ) {
715 : /* https://github.com/solana-labs/solana/blob/v1.17.23/programs/system/src/system_instruction.rs#L219-L226 */
716 :
717 : /* Max msg_sz: 52 - 2 + 45 = 95 < 127 => we can use printf */
718 0 : fd_log_collector_printf_dangerous_max_127( ctx,
719 0 : "Authorize nonce account: Account %s state is invalid", FD_BASE58_ENC_32_ALLOCA( account->acct->pubkey ) );
720 :
721 0 : return FD_EXECUTOR_INSTR_ERR_INVALID_ACC_DATA;
722 0 : }
723 :
724 0 : fd_nonce_data_t * data = &state->inner.initialized;
725 :
726 : /* https://github.com/solana-labs/solana/blob/v1.17.23/sdk/program/src/nonce/state/mod.rs#L85-L89 */
727 :
728 0 : if( FD_UNLIKELY( !fd_exec_instr_ctx_any_signed( ctx, &data->authority ) ) ) {
729 : /* https://github.com/solana-labs/solana/blob/v1.17.23/programs/system/src/system_instruction.rs#L227-L234 */
730 : /* Max msg_sz: 45 - 2 + 45 = 88 < 127 => we can use printf */
731 0 : fd_log_collector_printf_dangerous_max_127( ctx,
732 0 : "Authorize nonce account: Account %s must sign", FD_BASE58_ENC_32_ALLOCA( &data->authority ) );
733 0 : return FD_EXECUTOR_INSTR_ERR_MISSING_REQUIRED_SIGNATURE;
734 0 : }
735 :
736 : /* https://github.com/solana-labs/solana/blob/v1.17.23/sdk/program/src/nonce/state/mod.rs#L90-L95 */
737 :
738 0 : fd_nonce_state_t new_state[1] = {{
739 0 : .discriminant = fd_nonce_state_enum_initialized,
740 0 : .inner = { .initialized = {
741 0 : .authority = *nonce_authority,
742 0 : .durable_nonce = data->durable_nonce,
743 0 : .fee_calculator = data->fee_calculator
744 0 : } }
745 0 : }};
746 :
747 : /* https://github.com/solana-labs/solana/blob/v1.17.23/sdk/program/src/nonce/state/mod.rs#L96-L101 */
748 :
749 0 : fd_nonce_state_versions_t new_versioned[1] = {{0}};
750 0 : new_versioned->discriminant = versions->discriminant;
751 0 : switch( versions->discriminant ) {
752 0 : case fd_nonce_state_versions_enum_legacy:
753 0 : new_versioned->inner.legacy = *new_state;
754 0 : break;
755 0 : case fd_nonce_state_versions_enum_current:
756 0 : new_versioned->inner.current = *new_state;
757 0 : break;
758 0 : default:
759 0 : __builtin_unreachable();
760 0 : }
761 :
762 : /* https://github.com/solana-labs/solana/blob/v1.17.23/programs/system/src/system_instruction.rs#L218 */
763 :
764 0 : do {
765 0 : int err = fd_system_program_set_nonce_state( account, new_versioned );
766 0 : if( FD_UNLIKELY( err ) ) return err;
767 0 : } while(0);
768 :
769 0 : return FD_EXECUTOR_INSTR_SUCCESS;
770 0 : }
771 :
772 : /* https://github.com/solana-labs/solana/blob/v1.17.23/programs/system/src/system_processor.rs#L482-L487
773 :
774 : Matches Solana Labs system_processor SystemInstruction::AuthorizeNonceAccount { ... } => { ... } */
775 :
776 : int
777 : fd_system_program_exec_authorize_nonce_account( fd_exec_instr_ctx_t * ctx,
778 0 : fd_pubkey_t const * nonce_authority ) {
779 0 : int err;
780 : /* https://github.com/solana-labs/solana/blob/v1.17.23/programs/system/src/system_processor.rs#L483 */
781 :
782 0 : if( FD_UNLIKELY( ctx->instr->acct_cnt < 1 ) )
783 0 : return FD_EXECUTOR_INSTR_ERR_MISSING_ACC;
784 :
785 : /* https://github.com/solana-labs/solana/blob/v1.17.23/programs/system/src/system_processor.rs#L484-L485 */
786 :
787 0 : fd_guarded_borrowed_account_t account = {0};
788 0 : err = fd_exec_instr_ctx_try_borrow_instr_account( ctx, 0, &account );
789 0 : if( FD_UNLIKELY( err ) ) {
790 0 : return err;
791 0 : }
792 :
793 : /* https://github.com/solana-labs/solana/blob/v1.17.23/programs/system/src/system_processor.rs#L486 */
794 :
795 0 : err = fd_system_program_authorize_nonce_account( ctx, &account, 0UL, nonce_authority );
796 :
797 : /* Implicit drop */
798 :
799 0 : return err;
800 0 : }
801 :
802 : /* https://github.com/solana-labs/solana/blob/v1.17.23/programs/system/src/system_processor.rs#L488-L503
803 :
804 : Matches Solana Labs system_processor SystemInstruction::UpgradeNonceAccount { ... } => { ... } */
805 :
806 : int
807 0 : fd_system_program_exec_upgrade_nonce_account( fd_exec_instr_ctx_t * ctx ) {
808 0 : int err;
809 0 : ushort const nonce_acct_idx = 0UL;
810 :
811 : /* https://github.com/solana-labs/solana/blob/v1.17.23/programs/system/src/system_processor.rs#L489 */
812 :
813 0 : if( FD_UNLIKELY( ctx->instr->acct_cnt < 1 ) )
814 0 : return FD_EXECUTOR_INSTR_ERR_MISSING_ACC;
815 :
816 : /* https://github.com/anza-xyz/agave/blob/v2.1.14/programs/system/src/system_processor.rs#L474-475 */
817 :
818 0 : fd_guarded_borrowed_account_t account = {0};
819 0 : FD_TRY_BORROW_INSTR_ACCOUNT_DEFAULT_ERR_CHECK( ctx, nonce_acct_idx, &account );
820 :
821 : /* https://github.com/solana-labs/solana/blob/v1.17.23/programs/system/src/system_processor.rs#L492-L494 */
822 :
823 0 : if( FD_UNLIKELY( 0!=memcmp( fd_borrowed_account_get_owner( &account ), fd_solana_system_program_id.key, sizeof(fd_pubkey_t) ) ) )
824 0 : return FD_EXECUTOR_INSTR_ERR_INVALID_ACC_OWNER;
825 :
826 : /* https://github.com/solana-labs/solana/blob/v1.17.23/programs/system/src/system_processor.rs#L495-L497 */
827 :
828 0 : if( FD_UNLIKELY( !fd_instr_acc_is_writable_idx( ctx->instr, 0 ) ) )
829 0 : return FD_EXECUTOR_INSTR_ERR_INVALID_ARG;
830 :
831 : /* https://github.com/solana-labs/solana/blob/v1.17.23/programs/system/src/system_processor.rs#L498 */
832 :
833 0 : fd_nonce_state_versions_t versions[1];
834 0 : if( FD_UNLIKELY( !fd_bincode_decode_static(
835 0 : nonce_state_versions, versions,
836 0 : fd_borrowed_account_get_data( &account ),
837 0 : fd_borrowed_account_get_data_len( &account ),
838 0 : NULL ) ) ) {
839 0 : return FD_EXECUTOR_INSTR_ERR_INVALID_ACC_DATA;
840 0 : }
841 :
842 : /* Inlining solana_program::nonce::state::Versions::upgrade
843 : https://github.com/solana-labs/solana/blob/v1.17.23/sdk/program/src/nonce/state/mod.rs#L55-L73 */
844 :
845 0 : if( FD_UNLIKELY( versions->discriminant != fd_nonce_state_versions_enum_legacy ) )
846 0 : return FD_EXECUTOR_INSTR_ERR_INVALID_ARG;
847 :
848 0 : fd_nonce_state_t * state = &versions->inner.legacy;
849 0 : if( FD_UNLIKELY( state->discriminant != fd_nonce_state_enum_initialized ) )
850 0 : return FD_EXECUTOR_INSTR_ERR_INVALID_ARG;
851 :
852 0 : fd_durable_nonce_from_blockhash( &state->inner.initialized.durable_nonce, &state->inner.initialized.durable_nonce );
853 :
854 : /* https://github.com/solana-labs/solana/blob/v1.17.23/programs/system/src/system_processor.rs#L501 */
855 :
856 0 : fd_nonce_state_versions_t new_state[1] = {{
857 0 : .discriminant = fd_nonce_state_versions_enum_current,
858 0 : .inner = { .current = *state }
859 0 : }};
860 :
861 0 : err = fd_system_program_set_nonce_state( &account, new_state );
862 0 : if( FD_UNLIKELY( err ) ) return err;
863 :
864 : /* Implicit drop */
865 :
866 0 : return FD_EXECUTOR_INSTR_SUCCESS;
867 0 : }
868 :
869 : /* https://github.com/anza-xyz/agave/blob/v3.0.3/runtime/src/bank/check_transactions.rs#L166-L200 */
870 : /* The age of a transaction is valid under two conditions. The first is that
871 : the transactions blockhash is a recent blockhash (within 151) in the block
872 : hash queue. The other condition is that the transaction contains a valid
873 : nonce account. This is the case under several conditions. If neither
874 : condition is met then the transaction is invalid.
875 : Note: We check 151 and not 150 due to a known bug in agave. */
876 : int
877 : fd_check_transaction_age( fd_runtime_t * runtime,
878 : fd_bank_t * bank,
879 : fd_txn_in_t const * txn_in,
880 0 : fd_txn_out_t * txn_out ) {
881 0 : fd_blockhashes_t const * block_hash_queue = fd_bank_block_hash_queue_query( bank );
882 0 : fd_hash_t const * last_blockhash = fd_blockhashes_peek_last_hash( block_hash_queue );
883 0 : if( FD_UNLIKELY( !last_blockhash ) ) {
884 0 : FD_LOG_CRIT(( "blockhash queue is empty" ));
885 0 : }
886 :
887 : /* check_transaction_age */
888 0 : fd_hash_t next_durable_nonce = {0};
889 0 : fd_durable_nonce_from_blockhash( &next_durable_nonce, last_blockhash );
890 0 : ushort recent_blockhash_off = TXN( txn_in->txn )->recent_blockhash_off;
891 0 : fd_hash_t * recent_blockhash = (fd_hash_t *)((uchar *)txn_in->txn->payload + recent_blockhash_off);
892 :
893 : /* https://github.com/anza-xyz/agave/blob/16de8b75ebcd57022409b422de557dd37b1de8db/runtime/src/bank.rs#L3538-L3542 */
894 : /* get_hash_info_if_valid. Check 151 hashes from the block hash queue and its
895 : age to see if it is valid. */
896 :
897 0 : if( fd_blockhashes_check_age( block_hash_queue, recent_blockhash, FD_SYSVAR_RECENT_HASHES_CAP ) ) {
898 0 : return FD_RUNTIME_EXECUTE_SUCCESS;
899 0 : }
900 :
901 : /* https://github.com/anza-xyz/agave/blob/16de8b75ebcd57022409b422de557dd37b1de8db/runtime/src/bank.rs#L3622-L3633 */
902 : /* check_and_load_message_nonce_account */
903 0 : if( FD_UNLIKELY( !memcmp( &next_durable_nonce, recent_blockhash, sizeof(fd_hash_t) ) ) ) { /* nonce_is_advanceable == false */
904 0 : return FD_RUNTIME_TXN_ERR_BLOCKHASH_NONCE_ALREADY_ADVANCED;
905 0 : }
906 :
907 : /* https://github.com/anza-xyz/agave/blob/16de8b75ebcd57022409b422de557dd37b1de8db/runtime/src/bank.rs#L3603-L3620*/
908 : /* load_message_nonce_account */
909 :
910 : /* https://github.com/anza-xyz/agave/blob/v2.3.1/svm-transaction/src/svm_message.rs#L87-L119 */
911 : /* get_durable_nonce */
912 0 : if( FD_UNLIKELY( !TXN( txn_in->txn )->instr_cnt ) ) {
913 0 : return FD_RUNTIME_TXN_ERR_BLOCKHASH_NOT_FOUND;
914 0 : }
915 : /* Check the first instruction (nonce instruction) to see if the
916 : program id is the system program. Also make sure that it is an
917 : advance nonce account instruction. Finally make sure that the
918 : first instruction account is writable; if it is, then that account
919 : is a durable nonce account. */
920 0 : fd_txn_instr_t const * txn_instr = &TXN( txn_in->txn )->instr[0];
921 0 : fd_acct_addr_t const * tx_accs = fd_txn_get_acct_addrs( TXN( txn_in->txn ), txn_in->txn->payload );
922 0 : fd_acct_addr_t const * prog_id = tx_accs + txn_instr->program_id;
923 0 : if( FD_UNLIKELY( memcmp( prog_id->b, fd_solana_system_program_id.key, sizeof( fd_pubkey_t ) ) ) ) {
924 0 : return FD_RUNTIME_TXN_ERR_BLOCKHASH_NOT_FOUND;
925 0 : }
926 0 : uchar const * instr_data = fd_txn_get_instr_data( txn_instr, txn_in->txn->payload );
927 0 : uchar const * instr_accts = fd_txn_get_instr_accts( txn_instr, txn_in->txn->payload );
928 0 : uchar nonce_idx = instr_accts[0];
929 :
930 : /* https://github.com/anza-xyz/agave/blob/v2.3.1/svm-transaction/src/svm_message.rs#L99-L105 */
931 0 : if( FD_UNLIKELY( txn_instr->data_sz<4UL || FD_LOAD( uint, instr_data ) !=
932 0 : (uint)fd_system_program_instruction_enum_advance_nonce_account ) ) {
933 0 : return FD_RUNTIME_TXN_ERR_BLOCKHASH_NOT_FOUND;
934 0 : }
935 :
936 : /* Nonce account must be...
937 : - writable
938 : - statically included in the transaction account keys (if SIMD-242
939 : is active)
940 : https://github.com/anza-xyz/agave/blob/v2.3.1/svm-transaction/src/svm_message.rs#L110-L111 */
941 0 : if( FD_UNLIKELY( !fd_runtime_account_is_writable_idx( txn_in, txn_out, bank, nonce_idx ) ) ) {
942 0 : return FD_RUNTIME_TXN_ERR_BLOCKHASH_FAIL_ADVANCE_NONCE_INSTR;
943 0 : }
944 0 : if( FD_UNLIKELY( FD_FEATURE_ACTIVE_BANK( bank, require_static_nonce_account ) &&
945 0 : nonce_idx>=TXN( txn_in->txn )->acct_addr_cnt ) ) {
946 0 : return FD_RUNTIME_TXN_ERR_BLOCKHASH_FAIL_ADVANCE_NONCE_INSTR;
947 0 : }
948 :
949 0 : fd_txn_account_t durable_nonce_rec[1];
950 0 : fd_funk_txn_xid_t xid = { .ul = { fd_bank_slot_get( bank ), bank->idx } };
951 0 : int err = fd_txn_account_init_from_funk_readonly( durable_nonce_rec,
952 0 : &txn_out->accounts.account_keys[ nonce_idx ],
953 0 : runtime->funk,
954 0 : &xid );
955 0 : if( FD_UNLIKELY( err!=FD_ACC_MGR_SUCCESS ) ) {
956 0 : return FD_RUNTIME_TXN_ERR_BLOCKHASH_FAIL_ADVANCE_NONCE_INSTR;
957 0 : }
958 :
959 : /* https://github.com/anza-xyz/agave/blob/16de8b75ebcd57022409b422de557dd37b1de8db/sdk/src/nonce_account.rs#L28-L42 */
960 : /* verify_nonce_account */
961 0 : fd_pubkey_t const * owner_pubkey = fd_txn_account_get_owner( durable_nonce_rec );
962 0 : if( FD_UNLIKELY( memcmp( owner_pubkey, fd_solana_system_program_id.key, sizeof( fd_pubkey_t ) ) ) ) {
963 0 : return FD_RUNTIME_TXN_ERR_BLOCKHASH_FAIL_ADVANCE_NONCE_INSTR;
964 0 : }
965 :
966 0 : fd_nonce_state_versions_t state[1];
967 0 : if( FD_UNLIKELY( !fd_bincode_decode_static(
968 0 : nonce_state_versions, state,
969 0 : fd_txn_account_get_data( durable_nonce_rec ),
970 0 : fd_txn_account_get_data_len( durable_nonce_rec ),
971 0 : NULL ) ) ) {
972 0 : return FD_RUNTIME_TXN_ERR_BLOCKHASH_FAIL_ADVANCE_NONCE_INSTR;
973 0 : }
974 :
975 : /* https://github.com/anza-xyz/agave/blob/16de8b75ebcd57022409b422de557dd37b1de8db/sdk/program/src/nonce/state/mod.rs#L36-L53 */
976 : /* verify_recent_blockhash. This checks that the decoded nonce record is
977 : not a legacy nonce nor uninitialized. If this is the case, then we can
978 : verify by comparing the decoded durable nonce to the recent blockhash */
979 0 : if( FD_UNLIKELY( fd_nonce_state_versions_is_legacy( state ) ) ) {
980 0 : return FD_RUNTIME_TXN_ERR_BLOCKHASH_FAIL_ADVANCE_NONCE_INSTR;
981 0 : }
982 :
983 0 : fd_nonce_state_t nonce_state = state->inner.current;
984 0 : if( FD_UNLIKELY( fd_nonce_state_is_uninitialized( &nonce_state ) ) ) {
985 0 : return FD_RUNTIME_TXN_ERR_BLOCKHASH_FAIL_ADVANCE_NONCE_INSTR;
986 0 : }
987 :
988 0 : if( FD_UNLIKELY( memcmp( &nonce_state.inner.initialized.durable_nonce, recent_blockhash, sizeof(fd_hash_t) ) ) ) {
989 0 : return FD_RUNTIME_TXN_ERR_BLOCKHASH_FAIL_WRONG_NONCE;
990 0 : }
991 :
992 : /* Finally check that the nonce is authorized by seeing if any accounts in
993 : the nonce instruction are signers. This is a successful exit case. */
994 0 : for( ushort i=0; i<txn_instr->acct_cnt; ++i ) {
995 0 : if( fd_txn_is_signer( TXN( txn_in->txn ), (int)instr_accts[i] ) ) {
996 0 : if( !memcmp( &txn_out->accounts.account_keys[ instr_accts[i] ], &state->inner.current.inner.initialized.authority, sizeof(fd_pubkey_t) ) ) {
997 : /*
998 : Mark nonce account to make sure that we modify and hash the
999 : account even if the transaction failed to execute
1000 : successfully.
1001 : */
1002 0 : txn_out->accounts.nonce_idx_in_txn = instr_accts[ 0 ];
1003 : /*
1004 : Now figure out the state that the nonce account should
1005 : advance to.
1006 : */
1007 0 : fd_account_meta_t const * meta = fd_funk_get_acc_meta_readonly(
1008 0 : runtime->funk,
1009 0 : &xid,
1010 0 : &txn_out->accounts.account_keys[ instr_accts[ 0UL ] ],
1011 0 : NULL,
1012 0 : &err,
1013 0 : NULL );
1014 0 : ulong acc_data_len = meta->dlen;
1015 :
1016 0 : if( FD_UNLIKELY( err!=FD_ACC_MGR_SUCCESS ) ) {
1017 0 : return FD_RUNTIME_TXN_ERR_BLOCKHASH_FAIL_ADVANCE_NONCE_INSTR;
1018 0 : }
1019 : /* https://github.com/anza-xyz/agave/blob/v3.0.3/runtime/src/bank/check_transactions.rs#L217-L221*/
1020 0 : fd_nonce_state_versions_t new_state = {
1021 0 : .discriminant = fd_nonce_state_versions_enum_current,
1022 0 : .inner = { .current = {
1023 0 : .discriminant = fd_nonce_state_enum_initialized,
1024 0 : .inner = { .initialized = {
1025 0 : .authority = state->inner.current.inner.initialized.authority,
1026 0 : .durable_nonce = next_durable_nonce,
1027 0 : .fee_calculator = {
1028 : /* https://github.com/anza-xyz/agave/blob/v3.0.3/runtime/src/bank/check_transactions.rs#L88-L90 */
1029 0 : .lamports_per_signature = fd_bank_rbh_lamports_per_sig_get( bank )
1030 0 : }
1031 0 : } }
1032 0 : } }
1033 0 : };
1034 0 : if( FD_UNLIKELY( fd_nonce_state_versions_size( &new_state ) > FD_ACC_NONCE_SZ_MAX ) ) {
1035 0 : FD_LOG_ERR(( "fd_nonce_state_versions_size( &new_state ) %lu > FD_ACC_NONCE_SZ_MAX %lu", fd_nonce_state_versions_size( &new_state ), FD_ACC_NONCE_SZ_MAX ));
1036 0 : }
1037 : /* make_modifiable uses the old length for the data copy */
1038 0 : void * borrowed_account_data = txn_in->exec_accounts->rollback_nonce_account_mem;
1039 0 : if( FD_UNLIKELY( !borrowed_account_data ) ) {
1040 0 : FD_LOG_CRIT(( "Failed to allocate memory for nonce account" ));
1041 0 : }
1042 0 : if( FD_UNLIKELY( !meta ) ) {
1043 0 : FD_LOG_CRIT(( "Failed to get meta for nonce account" ));
1044 0 : }
1045 0 : fd_memcpy( borrowed_account_data, meta, sizeof(fd_account_meta_t)+acc_data_len );
1046 :
1047 0 : if( FD_UNLIKELY( !fd_txn_account_join( fd_txn_account_new(
1048 0 : txn_out->accounts.rollback_nonce,
1049 0 : &txn_out->accounts.account_keys[ instr_accts[ 0UL ] ],
1050 0 : (fd_account_meta_t *)borrowed_account_data,
1051 0 : 1 ) ) ) ) {
1052 0 : FD_LOG_CRIT(( "Failed to join txn account" ));
1053 0 : }
1054 :
1055 0 : if( FD_UNLIKELY( fd_nonce_state_versions_size( &new_state )>fd_txn_account_get_data_len( txn_out->accounts.rollback_nonce ) ) ) {
1056 0 : return FD_RUNTIME_TXN_ERR_BLOCKHASH_FAIL_ADVANCE_NONCE_INSTR;
1057 0 : }
1058 0 : do {
1059 0 : fd_bincode_encode_ctx_t encode_ctx =
1060 0 : { .data = fd_txn_account_get_data_mut( txn_out->accounts.rollback_nonce ),
1061 0 : .dataend = fd_txn_account_get_data_mut( txn_out->accounts.rollback_nonce ) + fd_txn_account_get_data_len( txn_out->accounts.rollback_nonce ) };
1062 0 : int err = fd_nonce_state_versions_encode( &new_state, &encode_ctx );
1063 0 : if( FD_UNLIKELY( err ) ) {
1064 0 : return FD_RUNTIME_TXN_ERR_BLOCKHASH_FAIL_ADVANCE_NONCE_INSTR;
1065 0 : }
1066 0 : } while(0);
1067 0 : return FD_RUNTIME_EXECUTE_SUCCESS;
1068 0 : }
1069 0 : }
1070 0 : }
1071 : /* This means that the blockhash was not found */
1072 0 : return FD_RUNTIME_TXN_ERR_BLOCKHASH_FAIL_ADVANCE_NONCE_INSTR;
1073 :
1074 0 : }
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