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 "../context/fd_exec_txn_ctx.h"
6 : #include "../sysvar/fd_sysvar_rent.h"
7 : #include "../sysvar/fd_sysvar_recent_hashes.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_hash_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->txn_ctx->bank );
66 0 : fd_hash_t const * last_hash = fd_blockhashes_peek_last( blockhashes );
67 0 : if( FD_UNLIKELY( last_hash==NULL ) ) {
68 : // Agave panics if this blockhash was never set at the start of the txn batch
69 0 : ctx->txn_ctx->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_hash;
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 : int err;
145 0 : fd_nonce_state_versions_t * versions = fd_bincode_decode_spad(
146 0 : nonce_state_versions, ctx->txn_ctx->spad,
147 0 : fd_borrowed_account_get_data( account ),
148 0 : fd_borrowed_account_get_data_len( account ),
149 0 : &err );
150 0 : if( FD_UNLIKELY( err ) ) return FD_EXECUTOR_INSTR_ERR_INVALID_ACC_DATA;
151 :
152 : /* https://github.com/solana-labs/solana/blob/v1.17.23/programs/system/src/system_instruction.rs#L35 */
153 :
154 0 : fd_nonce_state_t * state = NULL;
155 0 : switch( versions->discriminant ) {
156 0 : case fd_nonce_state_versions_enum_legacy:
157 0 : state = &versions->inner.legacy;
158 0 : break;
159 0 : case fd_nonce_state_versions_enum_current:
160 0 : state = &versions->inner.current;
161 0 : break;
162 0 : default:
163 0 : __builtin_unreachable();
164 0 : }
165 :
166 0 : switch( state->discriminant ) {
167 :
168 0 : case fd_nonce_state_enum_initialized: {
169 0 : fd_nonce_data_t * data = &state->inner.initialized;
170 :
171 : /* https://github.com/solana-labs/solana/blob/v1.17.23/programs/system/src/system_instruction.rs#L37-L44 */
172 :
173 0 : if( FD_UNLIKELY( !fd_exec_instr_ctx_any_signed( ctx, &data->authority ) ) ) {
174 : /* Max msg_sz: 50 - 2 + 45 = 93 < 127 => we can use printf */
175 0 : fd_log_collector_printf_dangerous_max_127( ctx,
176 0 : "Advance nonce account: Account %s must be a signer", FD_BASE58_ENC_32_ALLOCA( &data->authority ) );
177 0 : return FD_EXECUTOR_INSTR_ERR_MISSING_REQUIRED_SIGNATURE;
178 0 : }
179 :
180 : /* https://github.com/solana-labs/solana/blob/v1.17.23/programs/system/src/system_instruction.rs#L45 */
181 :
182 0 : fd_hash_t blockhash;
183 0 : do {
184 0 : int err = most_recent_block_hash( ctx, &blockhash );
185 0 : if( FD_UNLIKELY( err ) ) return err;
186 0 : } while(0);
187 :
188 0 : fd_hash_t next_durable_nonce;
189 0 : fd_durable_nonce_from_blockhash( &next_durable_nonce, &blockhash );
190 :
191 : /* https://github.com/solana-labs/solana/blob/v1.17.23/programs/system/src/system_instruction.rs#L46-L52 */
192 :
193 0 : if( FD_UNLIKELY( 0==memcmp( data->durable_nonce.hash, next_durable_nonce.hash, sizeof(fd_hash_t) ) ) ) {
194 0 : fd_log_collector_msg_literal( ctx, "Advance nonce account: nonce can only advance once per slot" );
195 0 : ctx->txn_ctx->custom_err = FD_SYSTEM_PROGRAM_ERR_NONCE_BLOCKHASH_NOT_EXPIRED;
196 0 : return FD_EXECUTOR_INSTR_ERR_CUSTOM_ERR;
197 0 : }
198 :
199 : /* https://github.com/solana-labs/solana/blob/v1.17.23/programs/system/src/system_instruction.rs#L54-L58 */
200 :
201 0 : fd_nonce_state_versions_t new_state = {
202 0 : .discriminant = fd_nonce_state_versions_enum_current,
203 0 : .inner = { .current = {
204 0 : .discriminant = fd_nonce_state_enum_initialized,
205 0 : .inner = { .initialized = {
206 0 : .authority = data->authority,
207 0 : .durable_nonce = next_durable_nonce,
208 0 : .fee_calculator = {
209 0 : .lamports_per_signature = fd_bank_prev_lamports_per_signature_get( ctx->txn_ctx->bank )
210 0 : }
211 0 : } }
212 0 : } }
213 0 : };
214 :
215 : /* https://github.com/solana-labs/solana/blob/v1.17.23/programs/system/src/system_instruction.rs#L59 */
216 :
217 0 : do {
218 0 : int err = fd_system_program_set_nonce_state( account, &new_state );
219 0 : if( FD_UNLIKELY( err ) ) return err;
220 0 : } while(0);
221 :
222 0 : break;
223 0 : }
224 :
225 0 : case fd_nonce_state_enum_uninitialized: {
226 : /* Max msg_sz: 50 - 2 + 45 = 93 < 127 => we can use printf */
227 0 : fd_log_collector_printf_dangerous_max_127( ctx,
228 0 : "Advance nonce account: Account %s state is invalid", FD_BASE58_ENC_32_ALLOCA( account->acct->pubkey ) );
229 0 : return FD_EXECUTOR_INSTR_ERR_INVALID_ACC_DATA;
230 0 : }
231 :
232 0 : } /* switch */
233 :
234 0 : return FD_EXECUTOR_INSTR_SUCCESS;
235 0 : }
236 :
237 : /* https://github.com/solana-labs/solana/blob/v1.17.23/programs/system/src/system_processor.rs#L423-L441
238 :
239 : Matches Solana Labs system_processor SystemInstruction::AdvanceNonceAccount => { ... } */
240 :
241 : int
242 0 : fd_system_program_exec_advance_nonce_account( fd_exec_instr_ctx_t * ctx ) {
243 0 : int err;
244 : /* https://github.com/solana-labs/solana/blob/v1.17.23/programs/system/src/system_processor.rs#L423-L441 */
245 :
246 0 : if( FD_UNLIKELY( ctx->instr->acct_cnt < 1 ) )
247 0 : return FD_EXECUTOR_INSTR_ERR_NOT_ENOUGH_ACC_KEYS;
248 :
249 : /* https://github.com/solana-labs/solana/blob/v1.17.23/programs/system/src/system_processor.rs#L425-L426 */
250 :
251 0 : uchar const instr_acc_idx = 0;
252 :
253 : /* https://github.com/anza-xyz/agave/blob/v2.1.14/programs/system/src/system_processor.rs#L409-L410 */
254 :
255 0 : fd_guarded_borrowed_account_t account = {0};
256 0 : FD_TRY_BORROW_INSTR_ACCOUNT_DEFAULT_ERR_CHECK( ctx, instr_acc_idx, &account );
257 :
258 : /* https://github.com/solana-labs/solana/blob/v1.17.23/programs/system/src/system_processor.rs#L427-L432 */
259 :
260 0 : err = require_acct_recent_blockhashes( ctx, 1UL );
261 0 : if( FD_UNLIKELY( err ) ) return err;
262 :
263 : /* https://github.com/solana-labs/solana/blob/v1.17.23/programs/system/src/system_processor.rs#L433-L439 */
264 :
265 0 : int bhq_empty;
266 0 : do {
267 0 : fd_block_block_hash_entry_t const * hashes = fd_sysvar_cache_recent_hashes_join_const( ctx->sysvar_cache );
268 0 : if( FD_UNLIKELY( !hashes ) ) __builtin_unreachable(); /* validated above */
269 0 : bhq_empty = deq_fd_block_block_hash_entry_t_empty( hashes );
270 0 : fd_sysvar_cache_recent_hashes_leave_const( ctx->sysvar_cache, hashes );
271 0 : } while(0);
272 0 : if( FD_UNLIKELY( bhq_empty ) ) {
273 0 : fd_log_collector_msg_literal( ctx, "Advance nonce account: recent blockhash list is empty" );
274 0 : ctx->txn_ctx->custom_err = FD_SYSTEM_PROGRAM_ERR_NONCE_NO_RECENT_BLOCKHASHES;
275 0 : return FD_EXECUTOR_INSTR_ERR_CUSTOM_ERR;
276 0 : }
277 :
278 0 : err = fd_system_program_advance_nonce_account( ctx, &account, instr_acc_idx );
279 :
280 : /* Implicit drop */
281 :
282 0 : return err;
283 0 : }
284 :
285 : /* https://github.com/solana-labs/solana/blob/v1.17.23/programs/system/src/system_instruction.rs#L72-L151
286 :
287 : Matches Solana Labs system_instruction::withdraw_nonce_account */
288 :
289 : static int
290 : fd_system_program_withdraw_nonce_account( fd_exec_instr_ctx_t * ctx,
291 : ulong requested_lamports,
292 0 : fd_rent_t const * rent ) {
293 0 : int err;
294 0 : ushort const from_acct_idx = 0UL;
295 0 : ushort const to_acct_idx = 1UL;
296 :
297 : /* https://github.com/solana-labs/solana/blob/v1.17.23/programs/system/src/system_instruction.rs#L82-L83 */
298 :
299 0 : fd_guarded_borrowed_account_t from = {0};
300 0 : FD_TRY_BORROW_INSTR_ACCOUNT_DEFAULT_ERR_CHECK( ctx, from_acct_idx, &from );
301 :
302 : /* https://github.com/solana-labs/solana/blob/v1.17.23/programs/system/src/system_instruction.rs#L84-L91 */
303 :
304 0 : if( FD_UNLIKELY( !fd_instr_acc_is_writable_idx( ctx->instr, from_acct_idx ) ) ) {
305 : /* Max msg_sz: 51 - 2 + 45 = 94 < 127 => we can use printf */
306 0 : fd_log_collector_printf_dangerous_max_127( ctx,
307 0 : "Withdraw nonce account: Account %s must be writeable", FD_BASE58_ENC_32_ALLOCA( from.acct->pubkey ) );
308 0 : return FD_EXECUTOR_INSTR_ERR_INVALID_ARG;
309 0 : }
310 :
311 : /* https://github.com/solana-labs/solana/blob/v1.17.23/programs/system/src/system_instruction.rs#L93 */
312 :
313 0 : fd_nonce_state_versions_t * versions = fd_bincode_decode_spad(
314 0 : nonce_state_versions, ctx->txn_ctx->spad,
315 0 : fd_borrowed_account_get_data( &from ),
316 0 : fd_borrowed_account_get_data_len( &from ),
317 0 : &err );
318 0 : if( FD_UNLIKELY( err ) ) return FD_EXECUTOR_INSTR_ERR_INVALID_ACC_DATA;
319 :
320 : /* https://github.com/solana-labs/solana/blob/v1.17.23/programs/system/src/system_instruction.rs#L94 */
321 :
322 0 : fd_nonce_state_t * state = NULL;
323 0 : switch( versions->discriminant ) {
324 0 : case fd_nonce_state_versions_enum_legacy:
325 0 : state = &versions->inner.legacy;
326 0 : break;
327 0 : case fd_nonce_state_versions_enum_current:
328 0 : state = &versions->inner.current;
329 0 : break;
330 0 : default:
331 0 : __builtin_unreachable();
332 0 : }
333 :
334 0 : fd_pubkey_t signer[1] = {0};
335 0 : switch( state->discriminant ) {
336 :
337 0 : case fd_nonce_state_enum_uninitialized: {
338 : /* https://github.com/solana-labs/solana/blob/v1.17.23/programs/system/src/system_instruction.rs#L95-L106 */
339 :
340 0 : if( FD_UNLIKELY( requested_lamports > fd_borrowed_account_get_lamports( &from ) ) ) {
341 : /* Max msg_sz: 59 - 6 + 20 + 20 = 93 < 127 => we can use printf */
342 0 : fd_log_collector_printf_dangerous_max_127( ctx,
343 0 : "Withdraw nonce account: insufficient lamports %lu, need %lu", fd_borrowed_account_get_lamports( &from ), requested_lamports );
344 0 : return FD_EXECUTOR_INSTR_ERR_INSUFFICIENT_FUNDS;
345 0 : }
346 :
347 : /* https://github.com/solana-labs/solana/blob/v1.17.23/programs/system/src/system_instruction.rs#L105 */
348 :
349 0 : *signer = *from.acct->pubkey;
350 :
351 0 : break;
352 0 : }
353 :
354 0 : case fd_nonce_state_enum_initialized: {
355 : /* https://github.com/solana-labs/solana/blob/v1.17.23/programs/system/src/system_instruction.rs#L107-L132 */
356 0 : fd_nonce_data_t * data = &state->inner.initialized;
357 :
358 0 : if( requested_lamports == fd_borrowed_account_get_lamports( &from ) ) {
359 : /* https://github.com/solana-labs/solana/blob/v1.17.23/programs/system/src/system_instruction.rs#L108-L117 */
360 :
361 : /* https://github.com/solana-labs/solana/blob/v1.17.23/programs/system/src/system_instruction.rs#L109 */
362 :
363 0 : fd_hash_t blockhash;
364 0 : do {
365 0 : int err = most_recent_block_hash( ctx, &blockhash );
366 0 : if( FD_UNLIKELY( err ) ) return err;
367 0 : } while(0);
368 :
369 0 : fd_hash_t next_durable_nonce;
370 0 : fd_durable_nonce_from_blockhash( &next_durable_nonce, &blockhash );
371 :
372 : /* https://github.com/solana-labs/solana/blob/v1.17.23/programs/system/src/system_instruction.rs#L110-L116 */
373 :
374 0 : if( FD_UNLIKELY( 0==memcmp( data->durable_nonce.hash, next_durable_nonce.hash, sizeof(fd_hash_t) ) ) ) {
375 0 : fd_log_collector_msg_literal( ctx, "Withdraw nonce account: nonce can only advance once per slot" );
376 0 : ctx->txn_ctx->custom_err = FD_SYSTEM_PROGRAM_ERR_NONCE_BLOCKHASH_NOT_EXPIRED;
377 0 : return FD_EXECUTOR_INSTR_ERR_CUSTOM_ERR;
378 0 : }
379 :
380 : /* https://github.com/solana-labs/solana/blob/v1.17.23/programs/system/src/system_instruction.rs#L117 */
381 :
382 0 : fd_nonce_state_versions_t new_state[1] = {{
383 0 : .discriminant = fd_nonce_state_versions_enum_current,
384 0 : .inner = { .current = {
385 0 : .discriminant = fd_nonce_state_enum_uninitialized
386 0 : } }
387 0 : }};
388 :
389 0 : do {
390 0 : int err = fd_system_program_set_nonce_state( &from, new_state );
391 0 : if( FD_UNLIKELY( err ) ) return err;
392 0 : } while(0);
393 :
394 0 : } else {
395 : /* https://github.com/solana-labs/solana/blob/v1.17.23/programs/system/src/system_instruction.rs#L118-L130 */
396 :
397 : /* https://github.com/solana-labs/solana/blob/v1.17.23/programs/system/src/system_instruction.rs#L120 */
398 :
399 0 : ulong min_balance = fd_rent_exempt_minimum_balance( rent, fd_borrowed_account_get_data_len( &from ) );
400 :
401 0 : ulong amount;
402 0 : if( FD_UNLIKELY( __builtin_uaddl_overflow( requested_lamports, min_balance, &amount ) ) )
403 0 : return FD_EXECUTOR_INSTR_ERR_INSUFFICIENT_FUNDS;
404 :
405 : /* https://github.com/solana-labs/solana/blob/v1.17.23/programs/system/src/system_instruction.rs#L121-L129 */
406 :
407 0 : if( FD_UNLIKELY( amount > fd_borrowed_account_get_lamports( &from ) ) ) {
408 : /* Max msg_sz: 59 - 6 + 20 + 20 = 93 < 127 => we can use printf */
409 0 : fd_log_collector_printf_dangerous_max_127( ctx,
410 0 : "Withdraw nonce account: insufficient lamports %lu, need %lu", fd_borrowed_account_get_lamports( &from ), amount );
411 0 : return FD_EXECUTOR_INSTR_ERR_INSUFFICIENT_FUNDS;
412 0 : }
413 :
414 0 : }
415 :
416 : /* https://github.com/solana-labs/solana/blob/v1.17.23/programs/system/src/system_instruction.rs#L131 */
417 :
418 0 : *signer = data->authority;
419 :
420 0 : break;
421 0 : }
422 :
423 0 : } /* switch */
424 :
425 : /* https://github.com/solana-labs/solana/blob/v1.17.23/programs/system/src/system_instruction.rs#L135-L142 */
426 :
427 0 : if( FD_UNLIKELY( !fd_exec_instr_ctx_any_signed( ctx, signer ) ) ) {
428 : /* Max msg_sz: 44 - 2 + 45 = 87 < 127 => we can use printf */
429 0 : fd_log_collector_printf_dangerous_max_127( ctx,
430 0 : "Withdraw nonce account: Account %s must sign", FD_BASE58_ENC_32_ALLOCA( signer ) );
431 0 : return FD_EXECUTOR_INSTR_ERR_MISSING_REQUIRED_SIGNATURE;
432 0 : }
433 :
434 : /* https://github.com/solana-labs/solana/blob/v1.17.23/programs/system/src/system_instruction.rs#L144 */
435 :
436 0 : err = fd_borrowed_account_checked_sub_lamports( &from, requested_lamports );
437 0 : if( FD_UNLIKELY( err ) ) return err;
438 :
439 : /* https://github.com/solana-labs/solana/blob/v1.17.23/programs/system/src/system_instruction.rs#L145 */
440 :
441 0 : fd_borrowed_account_drop( &from );
442 :
443 : /* https://github.com/solana-labs/solana/blob/v1.17.23/programs/system/src/system_instruction.rs#L146-L147 */
444 :
445 0 : fd_guarded_borrowed_account_t to = {0};
446 0 : FD_TRY_BORROW_INSTR_ACCOUNT_DEFAULT_ERR_CHECK( ctx, to_acct_idx, &to );
447 :
448 : /* https://github.com/solana-labs/solana/blob/v1.17.23/programs/system/src/system_instruction.rs#L148 */
449 :
450 0 : err = fd_borrowed_account_checked_add_lamports( &to, requested_lamports );
451 0 : if( FD_UNLIKELY( err ) ) return err;
452 :
453 : /* Implicit drop */
454 :
455 0 : return FD_EXECUTOR_INSTR_SUCCESS;
456 0 : }
457 :
458 : /* https://github.com/solana-labs/solana/blob/v1.17.23/programs/system/src/system_processor.rs#L442-L461
459 :
460 : Matches Solana Labs system_processor SystemInstruction::WithdrawNonceAccount { ... } => { ... } */
461 :
462 : int
463 : fd_system_program_exec_withdraw_nonce_account( fd_exec_instr_ctx_t * ctx,
464 0 : ulong requested_lamports ) {
465 :
466 : /* https://github.com/solana-labs/solana/blob/v1.17.23/programs/system/src/system_processor.rs#L443 */
467 :
468 0 : if( FD_UNLIKELY( ctx->instr->acct_cnt < 2 ) )
469 0 : return FD_EXECUTOR_INSTR_ERR_NOT_ENOUGH_ACC_KEYS;
470 :
471 : /* https://github.com/solana-labs/solana/blob/v1.17.23/programs/system/src/system_processor.rs#L445-L449 */
472 :
473 0 : do {
474 0 : int err = require_acct_recent_blockhashes( ctx, 2UL );
475 0 : if( FD_UNLIKELY( err ) ) return err;
476 0 : } while(0);
477 :
478 : /* https://github.com/solana-labs/solana/blob/v1.17.23/programs/system/src/system_processor.rs#L450 */
479 :
480 0 : fd_rent_t rent[1];
481 0 : do {
482 0 : int err = require_acct_rent( ctx, 3UL, rent );
483 0 : if( FD_UNLIKELY( err ) ) return err;
484 0 : } while(0);
485 :
486 : /* https://github.com/solana-labs/solana/blob/v1.17.23/programs/system/src/system_processor.rs#L451-L460 */
487 :
488 0 : return fd_system_program_withdraw_nonce_account( ctx, requested_lamports, rent );
489 0 : }
490 :
491 : /* https://github.com/solana-labs/solana/blob/v1.17.23/programs/system/src/system_instruction.rs#L153-L198
492 :
493 : Matches Solana Labs system_instruction::initialize_nonce_account */
494 :
495 : static int
496 : fd_system_program_initialize_nonce_account( fd_exec_instr_ctx_t * ctx,
497 : fd_borrowed_account_t * account,
498 : fd_pubkey_t const * authorized,
499 0 : fd_rent_t const * rent ) {
500 :
501 : /* https://github.com/anza-xyz/agave/blob/v2.2.0/programs/system/src/system_instruction.rs#L167-L174 */
502 :
503 0 : if( FD_UNLIKELY( !fd_borrowed_account_is_writable( account ) ) ) {
504 : /* Max msg_sz: 53 - 2 + 45 = 96 < 127 => we can use printf */
505 0 : fd_log_collector_printf_dangerous_max_127( ctx,
506 0 : "Initialize nonce account: Account %s must be writeable", FD_BASE58_ENC_32_ALLOCA( account->acct->pubkey ) );
507 0 : return FD_EXECUTOR_INSTR_ERR_INVALID_ARG;
508 0 : }
509 :
510 : /* https://github.com/solana-labs/solana/blob/v1.17.23/programs/system/src/system_instruction.rs#L168 */
511 :
512 0 : int err;
513 0 : fd_nonce_state_versions_t * versions = fd_bincode_decode_spad(
514 0 : nonce_state_versions, ctx->txn_ctx->spad,
515 0 : fd_borrowed_account_get_data( account ),
516 0 : fd_borrowed_account_get_data_len( account ),
517 0 : &err );
518 0 : if( FD_UNLIKELY( err ) ) return FD_EXECUTOR_INSTR_ERR_INVALID_ACC_DATA;
519 :
520 0 : fd_nonce_state_t * state = NULL;
521 0 : switch( versions->discriminant ) {
522 0 : case fd_nonce_state_versions_enum_legacy:
523 0 : state = &versions->inner.legacy;
524 0 : break;
525 0 : case fd_nonce_state_versions_enum_current:
526 0 : state = &versions->inner.current;
527 0 : break;
528 0 : default:
529 0 : __builtin_unreachable();
530 0 : }
531 :
532 0 : switch( state->discriminant ) {
533 :
534 0 : case fd_nonce_state_enum_uninitialized: {
535 : /* https://github.com/solana-labs/solana/blob/v1.17.23/programs/system/src/system_instruction.rs#L169-L188 */
536 :
537 : /* https://github.com/solana-labs/solana/blob/v1.17.23/programs/system/src/system_instruction.rs#L170 */
538 :
539 0 : ulong min_balance = fd_rent_exempt_minimum_balance( rent, fd_borrowed_account_get_data_len( account ) );
540 :
541 : /* https://github.com/solana-labs/solana/blob/v1.17.23/programs/system/src/system_instruction.rs#L171-L179 */
542 :
543 0 : if( FD_UNLIKELY( fd_borrowed_account_get_lamports( account ) < min_balance ) ) {
544 : /* Max msg_sz: 61 - 6 + 20 + 20 = 95 < 127 => we can use printf */
545 0 : fd_log_collector_printf_dangerous_max_127( ctx,
546 0 : "Initialize nonce account: insufficient lamports %lu, need %lu", fd_borrowed_account_get_lamports( account ), min_balance );
547 0 : return FD_EXECUTOR_INSTR_ERR_INSUFFICIENT_FUNDS;
548 0 : }
549 :
550 : /* https://github.com/solana-labs/solana/blob/v1.17.23/programs/system/src/system_instruction.rs#L180 */
551 :
552 0 : fd_hash_t blockhash;
553 0 : do {
554 0 : int err = most_recent_block_hash( ctx, &blockhash );
555 0 : if( FD_UNLIKELY( err ) ) return err;
556 0 : } while(0);
557 :
558 0 : fd_hash_t durable_nonce;
559 0 : fd_durable_nonce_from_blockhash( &durable_nonce, &blockhash );
560 :
561 : /* https://github.com/solana-labs/solana/blob/v1.17.23/programs/system/src/system_instruction.rs#L181-L186 */
562 :
563 0 : fd_nonce_state_versions_t new_state = {
564 0 : .discriminant = fd_nonce_state_versions_enum_current,
565 0 : .inner = { .current = {
566 0 : .discriminant = fd_nonce_state_enum_initialized,
567 0 : .inner = { .initialized = {
568 0 : .authority = *authorized,
569 0 : .durable_nonce = durable_nonce,
570 0 : .fee_calculator = {
571 0 : .lamports_per_signature = fd_bank_prev_lamports_per_signature_get( ctx->txn_ctx->bank )
572 0 : }
573 0 : } }
574 0 : } }
575 0 : };
576 :
577 : /* https://github.com/solana-labs/solana/blob/v1.17.23/programs/system/src/system_instruction.rs#L187 */
578 :
579 0 : do {
580 0 : int err = fd_system_program_set_nonce_state( account, &new_state );
581 0 : if( FD_UNLIKELY( err ) ) return err;
582 0 : } while(0);
583 :
584 0 : break;
585 0 : }
586 :
587 0 : case fd_nonce_state_enum_initialized: {
588 : /* https://github.com/solana-labs/solana/blob/v1.17.23/programs/system/src/system_instruction.rs#L189-L196 */
589 :
590 : /* Max msg_sz: 53 - 2 + 45 = 96 < 127 => we can use printf */
591 0 : fd_log_collector_printf_dangerous_max_127( ctx,
592 0 : "Initialize nonce account: Account %s state is invalid", FD_BASE58_ENC_32_ALLOCA( account->acct->pubkey ) );
593 :
594 0 : return FD_EXECUTOR_INSTR_ERR_INVALID_ACC_DATA;
595 0 : }
596 :
597 0 : } /* switch */
598 :
599 0 : return FD_EXECUTOR_INSTR_SUCCESS;
600 0 : }
601 :
602 : /* https://github.com/solana-labs/solana/blob/v1.17.23/programs/system/src/system_processor.rs#L462-L481
603 :
604 : Matches Solana Labs system_processor SystemInstruction::InitializeNonceAccount { ... } => { ... } */
605 :
606 : int
607 : fd_system_program_exec_initialize_nonce_account( fd_exec_instr_ctx_t * ctx,
608 0 : fd_pubkey_t const * authorized ) {
609 0 : int err;
610 : /* https://github.com/solana-labs/solana/blob/v1.17.23/programs/system/src/system_processor.rs#L463 */
611 :
612 0 : if( FD_UNLIKELY( ctx->instr->acct_cnt < 1 ) )
613 0 : return FD_EXECUTOR_INSTR_ERR_NOT_ENOUGH_ACC_KEYS;
614 :
615 : /* https://github.com/solana-labs/solana/blob/v1.17.23/programs/system/src/system_processor.rs#L464-L465 */
616 :
617 0 : uchar const instr_acc_idx = 0;
618 : /* https://github.com/anza-xyz/agave/blob/v2.1.14/programs/system/src/system_processor.rs#L448-L449 */
619 0 : fd_guarded_borrowed_account_t account = {0};
620 0 : FD_TRY_BORROW_INSTR_ACCOUNT_DEFAULT_ERR_CHECK( ctx, instr_acc_idx, &account );
621 :
622 : /* https://github.com/solana-labs/solana/blob/v1.17.23/programs/system/src/system_processor.rs#L466-L471 */
623 :
624 0 : do {
625 0 : err = require_acct_recent_blockhashes( ctx, 1UL );
626 0 : if( FD_UNLIKELY( err ) ) return err;
627 0 : } while(0);
628 :
629 : /* https://github.com/solana-labs/solana/blob/v1.17.23/programs/system/src/system_processor.rs#L472-L478 */
630 :
631 0 : int bhq_empty;
632 0 : do {
633 0 : fd_block_block_hash_entry_t const * hashes = fd_sysvar_cache_recent_hashes_join_const( ctx->sysvar_cache );
634 0 : if( FD_UNLIKELY( !hashes ) ) __builtin_unreachable(); /* validated above */
635 0 : bhq_empty = deq_fd_block_block_hash_entry_t_empty( hashes );
636 0 : fd_sysvar_cache_recent_hashes_leave_const( ctx->sysvar_cache, hashes );
637 0 : } while(0);
638 0 : if( FD_UNLIKELY( bhq_empty ) ) {
639 0 : fd_log_collector_msg_literal( ctx, "Initialize nonce account: recent blockhash list is empty" );
640 0 : ctx->txn_ctx->custom_err = FD_SYSTEM_PROGRAM_ERR_NONCE_NO_RECENT_BLOCKHASHES;
641 0 : return FD_EXECUTOR_INSTR_ERR_CUSTOM_ERR;
642 0 : }
643 :
644 : /* https://github.com/solana-labs/solana/blob/v1.17.23/programs/system/src/system_processor.rs#L479 */
645 :
646 0 : fd_rent_t rent[1];
647 0 : do {
648 0 : err = require_acct_rent( ctx, 2UL, rent );
649 0 : if( FD_UNLIKELY( err ) ) return err;
650 0 : } while(0);
651 :
652 : /* https://github.com/solana-labs/solana/blob/v1.17.23/programs/system/src/system_processor.rs#L480 */
653 :
654 0 : err = fd_system_program_initialize_nonce_account( ctx, &account, authorized, rent );
655 :
656 : /* Implicit drop */
657 :
658 0 : return err;
659 0 : }
660 :
661 : /* https://github.com/solana-labs/solana/blob/v1.17.23/programs/system/src/system_instruction.rs#L200-L236
662 :
663 : Matches Solana Labs system_instruction::authorize_nonce_account */
664 :
665 : static int
666 : fd_system_program_authorize_nonce_account( fd_exec_instr_ctx_t * ctx,
667 : fd_borrowed_account_t * account,
668 : ushort instr_acc_idx,
669 0 : fd_pubkey_t const * nonce_authority ) {
670 :
671 : /* https://github.com/solana-labs/solana/blob/v1.17.23/programs/system/src/system_instruction.rs#L206-L213 */
672 :
673 0 : if( FD_UNLIKELY( !fd_instr_acc_is_writable_idx( ctx->instr, instr_acc_idx ) ) ) {
674 : /* Max msg_sz: 52 - 2 + 45 = 95 < 127 => we can use printf */
675 0 : fd_log_collector_printf_dangerous_max_127( ctx,
676 0 : "Authorize nonce account: Account %s must be writeable", FD_BASE58_ENC_32_ALLOCA( account->acct->pubkey ) );
677 0 : return FD_EXECUTOR_INSTR_ERR_INVALID_ARG;
678 0 : }
679 :
680 : /* https://github.com/solana-labs/solana/blob/v1.17.23/programs/system/src/system_instruction.rs#L214-L215 */
681 :
682 0 : int err;
683 0 : fd_nonce_state_versions_t * versions = fd_bincode_decode_spad(
684 0 : nonce_state_versions, ctx->txn_ctx->spad,
685 0 : fd_borrowed_account_get_data( account ),
686 0 : fd_borrowed_account_get_data_len( account ),
687 0 : &err );
688 0 : if( FD_UNLIKELY( err ) ) return FD_EXECUTOR_INSTR_ERR_INVALID_ACC_DATA;
689 :
690 : /* Inlining solana_program::nonce::state::Versions::authorize
691 : https://github.com/solana-labs/solana/blob/v1.17.23/sdk/program/src/nonce/state/mod.rs#L76-L102 */
692 :
693 : /* https://github.com/solana-labs/solana/blob/v1.17.23/sdk/program/src/nonce/state/mod.rs#L81 */
694 :
695 0 : fd_nonce_state_t * state = NULL;
696 0 : switch( versions->discriminant ) {
697 0 : case fd_nonce_state_versions_enum_legacy:
698 0 : state = &versions->inner.legacy;
699 0 : break;
700 0 : case fd_nonce_state_versions_enum_current:
701 0 : state = &versions->inner.current;
702 0 : break;
703 0 : default:
704 0 : __builtin_unreachable();
705 0 : }
706 :
707 : /* https://github.com/solana-labs/solana/blob/v1.17.23/sdk/program/src/nonce/state/mod.rs#L81-L84 */
708 :
709 0 : if( FD_UNLIKELY( state->discriminant != fd_nonce_state_enum_initialized ) ) {
710 : /* https://github.com/solana-labs/solana/blob/v1.17.23/programs/system/src/system_instruction.rs#L219-L226 */
711 :
712 : /* Max msg_sz: 52 - 2 + 45 = 95 < 127 => we can use printf */
713 0 : fd_log_collector_printf_dangerous_max_127( ctx,
714 0 : "Authorize nonce account: Account %s state is invalid", FD_BASE58_ENC_32_ALLOCA( account->acct->pubkey ) );
715 :
716 0 : return FD_EXECUTOR_INSTR_ERR_INVALID_ACC_DATA;
717 0 : }
718 :
719 0 : fd_nonce_data_t * data = &state->inner.initialized;
720 :
721 : /* https://github.com/solana-labs/solana/blob/v1.17.23/sdk/program/src/nonce/state/mod.rs#L85-L89 */
722 :
723 0 : if( FD_UNLIKELY( !fd_exec_instr_ctx_any_signed( ctx, &data->authority ) ) ) {
724 : /* https://github.com/solana-labs/solana/blob/v1.17.23/programs/system/src/system_instruction.rs#L227-L234 */
725 : /* Max msg_sz: 45 - 2 + 45 = 88 < 127 => we can use printf */
726 0 : fd_log_collector_printf_dangerous_max_127( ctx,
727 0 : "Authorize nonce account: Account %s must sign", FD_BASE58_ENC_32_ALLOCA( &data->authority ) );
728 0 : return FD_EXECUTOR_INSTR_ERR_MISSING_REQUIRED_SIGNATURE;
729 0 : }
730 :
731 : /* https://github.com/solana-labs/solana/blob/v1.17.23/sdk/program/src/nonce/state/mod.rs#L90-L95 */
732 :
733 0 : fd_nonce_state_t new_state[1] = {{
734 0 : .discriminant = fd_nonce_state_enum_initialized,
735 0 : .inner = { .initialized = {
736 0 : .authority = *nonce_authority,
737 0 : .durable_nonce = data->durable_nonce,
738 0 : .fee_calculator = data->fee_calculator
739 0 : } }
740 0 : }};
741 :
742 : /* https://github.com/solana-labs/solana/blob/v1.17.23/sdk/program/src/nonce/state/mod.rs#L96-L101 */
743 :
744 0 : fd_nonce_state_versions_t new_versioned[1] = {{0}};
745 0 : new_versioned->discriminant = versions->discriminant;
746 0 : switch( versions->discriminant ) {
747 0 : case fd_nonce_state_versions_enum_legacy:
748 0 : new_versioned->inner.legacy = *new_state;
749 0 : break;
750 0 : case fd_nonce_state_versions_enum_current:
751 0 : new_versioned->inner.current = *new_state;
752 0 : break;
753 0 : default:
754 0 : __builtin_unreachable();
755 0 : }
756 :
757 : /* https://github.com/solana-labs/solana/blob/v1.17.23/programs/system/src/system_instruction.rs#L218 */
758 :
759 0 : do {
760 0 : int err = fd_system_program_set_nonce_state( account, new_versioned );
761 0 : if( FD_UNLIKELY( err ) ) return err;
762 0 : } while(0);
763 :
764 0 : return FD_EXECUTOR_INSTR_SUCCESS;
765 0 : }
766 :
767 : /* https://github.com/solana-labs/solana/blob/v1.17.23/programs/system/src/system_processor.rs#L482-L487
768 :
769 : Matches Solana Labs system_processor SystemInstruction::AuthorizeNonceAccount { ... } => { ... } */
770 :
771 : int
772 : fd_system_program_exec_authorize_nonce_account( fd_exec_instr_ctx_t * ctx,
773 0 : fd_pubkey_t const * nonce_authority ) {
774 0 : int err;
775 : /* https://github.com/solana-labs/solana/blob/v1.17.23/programs/system/src/system_processor.rs#L483 */
776 :
777 0 : if( FD_UNLIKELY( ctx->instr->acct_cnt < 1 ) )
778 0 : return FD_EXECUTOR_INSTR_ERR_NOT_ENOUGH_ACC_KEYS;
779 :
780 : /* https://github.com/solana-labs/solana/blob/v1.17.23/programs/system/src/system_processor.rs#L484-L485 */
781 :
782 0 : fd_guarded_borrowed_account_t account = {0};
783 0 : err = fd_exec_instr_ctx_try_borrow_instr_account( ctx, 0, &account );
784 0 : if( FD_UNLIKELY( err ) ) {
785 0 : return err;
786 0 : }
787 :
788 : /* https://github.com/solana-labs/solana/blob/v1.17.23/programs/system/src/system_processor.rs#L486 */
789 :
790 0 : err = fd_system_program_authorize_nonce_account( ctx, &account, 0UL, nonce_authority );
791 :
792 : /* Implicit drop */
793 :
794 0 : return err;
795 0 : }
796 :
797 : /* https://github.com/solana-labs/solana/blob/v1.17.23/programs/system/src/system_processor.rs#L488-L503
798 :
799 : Matches Solana Labs system_processor SystemInstruction::UpgradeNonceAccount { ... } => { ... } */
800 :
801 : int
802 0 : fd_system_program_exec_upgrade_nonce_account( fd_exec_instr_ctx_t * ctx ) {
803 0 : int err;
804 0 : ushort const nonce_acct_idx = 0UL;
805 :
806 : /* https://github.com/solana-labs/solana/blob/v1.17.23/programs/system/src/system_processor.rs#L489 */
807 :
808 0 : if( FD_UNLIKELY( ctx->instr->acct_cnt < 1 ) )
809 0 : return FD_EXECUTOR_INSTR_ERR_NOT_ENOUGH_ACC_KEYS;
810 :
811 : /* https://github.com/anza-xyz/agave/blob/v2.1.14/programs/system/src/system_processor.rs#L474-475 */
812 :
813 0 : fd_guarded_borrowed_account_t account = {0};
814 0 : FD_TRY_BORROW_INSTR_ACCOUNT_DEFAULT_ERR_CHECK( ctx, nonce_acct_idx, &account );
815 :
816 : /* https://github.com/solana-labs/solana/blob/v1.17.23/programs/system/src/system_processor.rs#L492-L494 */
817 :
818 0 : if( FD_UNLIKELY( 0!=memcmp( fd_borrowed_account_get_owner( &account ), fd_solana_system_program_id.key, sizeof(fd_pubkey_t) ) ) )
819 0 : return FD_EXECUTOR_INSTR_ERR_INVALID_ACC_OWNER;
820 :
821 : /* https://github.com/solana-labs/solana/blob/v1.17.23/programs/system/src/system_processor.rs#L495-L497 */
822 :
823 0 : if( FD_UNLIKELY( !fd_instr_acc_is_writable_idx( ctx->instr, 0 ) ) )
824 0 : return FD_EXECUTOR_INSTR_ERR_INVALID_ARG;
825 :
826 : /* https://github.com/solana-labs/solana/blob/v1.17.23/programs/system/src/system_processor.rs#L498 */
827 :
828 0 : fd_nonce_state_versions_t * versions = fd_bincode_decode_spad(
829 0 : nonce_state_versions, ctx->txn_ctx->spad,
830 0 : fd_borrowed_account_get_data( &account ),
831 0 : fd_borrowed_account_get_data_len( &account ),
832 0 : &err );
833 0 : if( FD_UNLIKELY( err ) ) return FD_EXECUTOR_INSTR_ERR_INVALID_ACC_DATA;
834 :
835 : /* Inlining solana_program::nonce::state::Versions::upgrade
836 : https://github.com/solana-labs/solana/blob/v1.17.23/sdk/program/src/nonce/state/mod.rs#L55-L73 */
837 :
838 0 : if( FD_UNLIKELY( versions->discriminant != fd_nonce_state_versions_enum_legacy ) )
839 0 : return FD_EXECUTOR_INSTR_ERR_INVALID_ARG;
840 :
841 0 : fd_nonce_state_t * state = &versions->inner.legacy;
842 0 : if( FD_UNLIKELY( state->discriminant != fd_nonce_state_enum_initialized ) )
843 0 : return FD_EXECUTOR_INSTR_ERR_INVALID_ARG;
844 :
845 0 : fd_durable_nonce_from_blockhash( &state->inner.initialized.durable_nonce, &state->inner.initialized.durable_nonce );
846 :
847 : /* https://github.com/solana-labs/solana/blob/v1.17.23/programs/system/src/system_processor.rs#L501 */
848 :
849 0 : fd_nonce_state_versions_t new_state[1] = {{
850 0 : .discriminant = fd_nonce_state_versions_enum_current,
851 0 : .inner = { .current = *state }
852 0 : }};
853 :
854 0 : err = fd_system_program_set_nonce_state( &account, new_state );
855 0 : if( FD_UNLIKELY( err ) ) return err;
856 :
857 : /* Implicit drop */
858 :
859 0 : return FD_EXECUTOR_INSTR_SUCCESS;
860 0 : }
861 :
862 : /* https://github.com/anza-xyz/agave/blob/16de8b75ebcd57022409b422de557dd37b1de8db/runtime/src/bank.rs#L3529-L3554 */
863 : /* The age of a transaction is valid under two conditions. The first is that
864 : the transactions blockhash is a recent blockhash (within 151) in the block
865 : hash queue. The other condition is that the transaction contains a valid
866 : nonce account. This is the case under several conditions. If neither
867 : condition is met then the transaction is invalid.
868 : Note: We check 151 and not 150 due to a known bug in agave. */
869 : int
870 0 : fd_check_transaction_age( fd_exec_txn_ctx_t * txn_ctx ) {
871 0 : fd_blockhashes_t const * block_hash_queue = fd_bank_block_hash_queue_query( txn_ctx->bank );
872 0 : fd_hash_t const * last_blockhash = fd_blockhashes_peek_last( block_hash_queue );
873 0 : if( FD_UNLIKELY( !last_blockhash ) ) {
874 : /* FIXME What does Agave do here? */
875 0 : return FD_RUNTIME_TXN_ERR_BLOCKHASH_NOT_FOUND;
876 0 : }
877 :
878 : /* check_transaction_age */
879 0 : fd_hash_t next_durable_nonce = {0};
880 0 : fd_durable_nonce_from_blockhash( &next_durable_nonce, last_blockhash );
881 0 : ushort recent_blockhash_off = TXN( &txn_ctx->txn )->recent_blockhash_off;
882 0 : fd_hash_t * recent_blockhash = (fd_hash_t *)((uchar *)txn_ctx->txn.payload + recent_blockhash_off);
883 :
884 : /* https://github.com/anza-xyz/agave/blob/16de8b75ebcd57022409b422de557dd37b1de8db/runtime/src/bank.rs#L3538-L3542 */
885 : /* get_hash_info_if_valid. Check 151 hashes from the block hash queue and its
886 : age to see if it is valid. */
887 :
888 0 : if( fd_blockhashes_check_age( block_hash_queue, recent_blockhash, FD_SYSVAR_RECENT_HASHES_CAP ) ) {
889 0 : return FD_RUNTIME_EXECUTE_SUCCESS;
890 0 : }
891 :
892 : /* https://github.com/anza-xyz/agave/blob/16de8b75ebcd57022409b422de557dd37b1de8db/runtime/src/bank.rs#L3622-L3633 */
893 : /* check_and_load_message_nonce_account */
894 0 : if( FD_UNLIKELY( !memcmp( &next_durable_nonce, recent_blockhash, sizeof(fd_hash_t) ) ) ) { /* nonce_is_advanceable == false */
895 0 : return FD_RUNTIME_TXN_ERR_BLOCKHASH_NOT_FOUND;
896 0 : }
897 :
898 : /* https://github.com/anza-xyz/agave/blob/16de8b75ebcd57022409b422de557dd37b1de8db/runtime/src/bank.rs#L3603-L3620*/
899 : /* load_message_nonce_account */
900 :
901 : /* https://github.com/anza-xyz/agave/blob/v2.3.1/svm-transaction/src/svm_message.rs#L87-L119 */
902 : /* get_durable_nonce */
903 0 : if( FD_UNLIKELY( !TXN( &txn_ctx->txn )->instr_cnt ) ) {
904 0 : return FD_RUNTIME_TXN_ERR_BLOCKHASH_NOT_FOUND;
905 0 : }
906 : /* Check the first instruction (nonce instruction) to see if the program id
907 : is the system program. Also make sure that it is an advance nonce account
908 : instruction. Finally make sure that the first insutrction account is
909 : writeable; if it is, then that account is a durable nonce account. */
910 0 : fd_txn_instr_t const * txn_instr = &TXN( &txn_ctx->txn )->instr[0];
911 0 : fd_acct_addr_t const * tx_accs = fd_txn_get_acct_addrs( TXN( &txn_ctx->txn ), txn_ctx->txn.payload );
912 0 : fd_acct_addr_t const * prog_id = tx_accs + txn_instr->program_id;
913 0 : if( FD_UNLIKELY( memcmp( prog_id->b, fd_solana_system_program_id.key, sizeof( fd_pubkey_t ) ) ) ) {
914 0 : return FD_RUNTIME_TXN_ERR_BLOCKHASH_NOT_FOUND;
915 0 : }
916 0 : uchar const * instr_data = fd_txn_get_instr_data( txn_instr, txn_ctx->txn.payload );
917 0 : uchar const * instr_accts = fd_txn_get_instr_accts( txn_instr, txn_ctx->txn.payload );
918 0 : uchar nonce_idx = instr_accts[0];
919 :
920 : /* https://github.com/anza-xyz/agave/blob/v2.3.1/svm-transaction/src/svm_message.rs#L99-L105 */
921 0 : if( FD_UNLIKELY( txn_instr->data_sz<4UL || FD_LOAD( uint, instr_data ) !=
922 0 : (uint)fd_system_program_instruction_enum_advance_nonce_account ) ) {
923 0 : return FD_RUNTIME_TXN_ERR_BLOCKHASH_NOT_FOUND;
924 0 : }
925 :
926 : /* Nonce account must be...
927 : - writable
928 : - statically included in the transaction account keys (if SIMD-242
929 : is active)
930 : https://github.com/anza-xyz/agave/blob/v2.3.1/svm-transaction/src/svm_message.rs#L110-L111 */
931 0 : if( FD_UNLIKELY( !fd_exec_txn_ctx_account_is_writable_idx( txn_ctx, nonce_idx ) ) ) {
932 0 : return FD_RUNTIME_TXN_ERR_BLOCKHASH_NOT_FOUND;
933 0 : }
934 0 : if( FD_UNLIKELY( FD_FEATURE_ACTIVE_BANK( txn_ctx->bank, require_static_nonce_account ) &&
935 0 : nonce_idx>=TXN( &txn_ctx->txn )->acct_addr_cnt ) ) {
936 0 : return FD_RUNTIME_TXN_ERR_BLOCKHASH_NOT_FOUND;
937 0 : }
938 :
939 0 : FD_TXN_ACCOUNT_DECL( durable_nonce_rec );
940 0 : int err = fd_txn_account_init_from_funk_readonly( durable_nonce_rec,
941 0 : &txn_ctx->account_keys[ nonce_idx ],
942 0 : txn_ctx->funk,
943 0 : txn_ctx->xid );
944 0 : if( FD_UNLIKELY( err!=FD_ACC_MGR_SUCCESS ) ) {
945 0 : return FD_RUNTIME_TXN_ERR_BLOCKHASH_NOT_FOUND;
946 0 : }
947 :
948 : /* https://github.com/anza-xyz/agave/blob/16de8b75ebcd57022409b422de557dd37b1de8db/sdk/src/nonce_account.rs#L28-L42 */
949 : /* verify_nonce_account */
950 0 : fd_pubkey_t const * owner_pubkey = fd_txn_account_get_owner( durable_nonce_rec );
951 0 : if( FD_UNLIKELY( memcmp( owner_pubkey, fd_solana_system_program_id.key, sizeof( fd_pubkey_t ) ) ) ) {
952 0 : return FD_RUNTIME_TXN_ERR_BLOCKHASH_NOT_FOUND;
953 0 : }
954 :
955 0 : fd_nonce_state_versions_t * state = fd_bincode_decode_spad(
956 0 : nonce_state_versions, txn_ctx->spad,
957 0 : fd_txn_account_get_data( durable_nonce_rec ),
958 0 : fd_txn_account_get_data_len( durable_nonce_rec ),
959 0 : &err );
960 0 : if( FD_UNLIKELY( err ) ) return FD_RUNTIME_TXN_ERR_BLOCKHASH_NOT_FOUND;
961 :
962 : /* https://github.com/anza-xyz/agave/blob/16de8b75ebcd57022409b422de557dd37b1de8db/sdk/program/src/nonce/state/mod.rs#L36-L53 */
963 : /* verify_recent_blockhash. Thjis checks that the decoded nonce record is
964 : not a legacy nonce nor uninitialized. If this is the case, then we can
965 : verify by comparing the decoded durable nonce to the recent blockhash */
966 0 : if( FD_UNLIKELY( fd_nonce_state_versions_is_legacy( state ) ) ) {
967 0 : return FD_RUNTIME_TXN_ERR_BLOCKHASH_NOT_FOUND;
968 0 : }
969 :
970 0 : fd_nonce_state_t nonce_state = state->inner.current;
971 0 : if( FD_UNLIKELY( fd_nonce_state_is_uninitialized( &nonce_state ) ) ) {
972 0 : return FD_RUNTIME_TXN_ERR_BLOCKHASH_NOT_FOUND;
973 0 : }
974 :
975 0 : if( FD_UNLIKELY( memcmp( &nonce_state.inner.initialized.durable_nonce, recent_blockhash, sizeof(fd_hash_t) ) ) ) {
976 0 : return FD_RUNTIME_TXN_ERR_BLOCKHASH_NOT_FOUND;
977 0 : }
978 :
979 : /* Finally check that the nonce is authorized by seeing if any accounts in
980 : the nonce instruction are signers. This is a successful exit case. */
981 0 : for( ushort i=0; i<txn_instr->acct_cnt; ++i ) {
982 0 : if( fd_txn_is_signer( TXN( &txn_ctx->txn ), (int)instr_accts[i] ) ) {
983 0 : if( !memcmp( &txn_ctx->account_keys[ instr_accts[i] ], &state->inner.current.inner.initialized.authority, sizeof( fd_pubkey_t ) ) ) {
984 : /*
985 : Mark nonce account to make sure that we modify and hash the
986 : account even if the transaction failed to execute
987 : successfully.
988 : */
989 0 : txn_ctx->nonce_account_idx_in_txn = instr_accts[ 0 ];
990 : /*
991 : Now figure out the state that the nonce account should
992 : advance to.
993 : */
994 0 : fd_account_meta_t const * meta = fd_funk_get_acc_meta_readonly(
995 0 : txn_ctx->funk,
996 0 : txn_ctx->xid,
997 0 : &txn_ctx->account_keys[ instr_accts[ 0UL ] ],
998 0 : NULL,
999 0 : &err,
1000 0 : NULL );
1001 0 : ulong acc_data_len = meta->dlen;
1002 :
1003 0 : if( FD_UNLIKELY( err!=FD_ACC_MGR_SUCCESS ) ) {
1004 0 : return FD_RUNTIME_TXN_ERR_BLOCKHASH_NOT_FOUND;
1005 0 : }
1006 0 : fd_nonce_state_versions_t new_state = {
1007 0 : .discriminant = fd_nonce_state_versions_enum_current,
1008 0 : .inner = { .current = {
1009 0 : .discriminant = fd_nonce_state_enum_initialized,
1010 0 : .inner = { .initialized = {
1011 0 : .authority = state->inner.current.inner.initialized.authority,
1012 0 : .durable_nonce = next_durable_nonce,
1013 0 : .fee_calculator = {
1014 0 : .lamports_per_signature = fd_bank_prev_lamports_per_signature_get( txn_ctx->bank )
1015 0 : }
1016 0 : } }
1017 0 : } }
1018 0 : };
1019 0 : if( FD_UNLIKELY( fd_nonce_state_versions_size( &new_state ) > FD_ACC_NONCE_SZ_MAX ) ) {
1020 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 ));
1021 0 : }
1022 : /* make_modifiable uses the old length for the data copy */
1023 0 : ulong old_tot_len = sizeof(fd_account_meta_t)+acc_data_len;
1024 0 : void * borrowed_account_data = fd_spad_alloc( txn_ctx->spad, FD_ACCOUNT_REC_ALIGN, fd_ulong_max( FD_ACC_NONCE_TOT_SZ_MAX, old_tot_len ) );
1025 0 : if( FD_UNLIKELY( !borrowed_account_data ) ) {
1026 0 : FD_LOG_CRIT(( "Failed to allocate memory for nonce account" ));
1027 0 : }
1028 0 : if( FD_UNLIKELY( !meta ) ) {
1029 0 : FD_LOG_CRIT(( "Failed to get meta for nonce account" ));
1030 0 : }
1031 0 : fd_memcpy( borrowed_account_data, meta, sizeof(fd_account_meta_t)+acc_data_len );
1032 :
1033 0 : if( FD_UNLIKELY( !fd_txn_account_join( fd_txn_account_new(
1034 0 : txn_ctx->rollback_nonce_account,
1035 0 : &txn_ctx->account_keys[ instr_accts[ 0UL ] ],
1036 0 : (fd_account_meta_t *)borrowed_account_data,
1037 0 : 1 ), txn_ctx->spad_wksp ) ) ) {
1038 0 : FD_LOG_CRIT(( "Failed to join txn account" ));
1039 0 : }
1040 :
1041 0 : if( FD_UNLIKELY( fd_nonce_state_versions_size( &new_state )>fd_txn_account_get_data_len( txn_ctx->rollback_nonce_account ) ) ) {
1042 0 : return FD_RUNTIME_TXN_ERR_BLOCKHASH_NOT_FOUND;
1043 0 : }
1044 0 : do {
1045 0 : fd_bincode_encode_ctx_t encode_ctx =
1046 0 : { .data = fd_txn_account_get_data_mut( txn_ctx->rollback_nonce_account ),
1047 0 : .dataend = fd_txn_account_get_data_mut( txn_ctx->rollback_nonce_account ) + fd_txn_account_get_data_len( txn_ctx->rollback_nonce_account ) };
1048 0 : int err = fd_nonce_state_versions_encode( &new_state, &encode_ctx );
1049 0 : if( FD_UNLIKELY( err ) ) {
1050 0 : return FD_RUNTIME_TXN_ERR_BLOCKHASH_NOT_FOUND;
1051 0 : }
1052 0 : } while(0);
1053 0 : return FD_RUNTIME_EXECUTE_SUCCESS;
1054 0 : }
1055 0 : }
1056 0 : }
1057 : /* This means that the blockhash was not found */
1058 0 : return FD_RUNTIME_TXN_ERR_BLOCKHASH_NOT_FOUND;
1059 :
1060 0 : }
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