Line data Source code
1 : #include "fd_vote_program.h"
2 : #include "../fd_borrowed_account.h"
3 : #include "../fd_executor.h"
4 : #include "../fd_pubkey_utils.h"
5 : #include "../sysvar/fd_sysvar_rent.h"
6 : #include "../sysvar/fd_sysvar.h"
7 :
8 : #include <limits.h>
9 : #include <math.h>
10 : #include <stdio.h>
11 : #include <string.h>
12 :
13 : // https://github.com/anza-xyz/agave/blob/v2.0.1/sdk/program/src/vote/state/mod.rs#L35
14 0 : #define MAX_LOCKOUT_HISTORY 31UL
15 :
16 : // https://github.com/anza-xyz/agave/blob/v2.0.1/sdk/program/src/vote/state/mod.rs#L36
17 0 : #define INITIAL_LOCKOUT 2UL
18 :
19 : // https://github.com/anza-xyz/agave/blob/v2.0.1/sdk/program/src/vote/state/mod.rs#L36
20 : #define MAX_EPOCH_CREDITS_HISTORY 64UL
21 :
22 : // https://github.com/anza-xyz/agave/blob/v2.0.1/sdk/program/src/vote/state/mod.rs#L42
23 0 : #define DEFAULT_PRIOR_VOTERS_OFFSET 114
24 :
25 : // https://github.com/anza-xyz/agave/blob/v2.0.1/sdk/program/src/vote/state/mod.rs#L45
26 0 : #define VOTE_CREDITS_GRACE_SLOTS 2
27 :
28 : // https://github.com/anza-xyz/agave/blob/v2.0.1/sdk/program/src/vote/state/mod.rs#L48
29 0 : #define VOTE_CREDITS_MAXIMUM_PER_SLOT 16
30 :
31 : // https://github.com/anza-xyz/agave/blob/v2.0.1/sdk/program/src/vote/state/mod.rs#L51
32 : #define VOTE_CREDITS_MAXIMUM_PER_SLOT_OLD 8
33 :
34 : // https://github.com/anza-xyz/agave/blob/v2.0.1/sdk/program/src/clock.rs#L147
35 : #define SLOT_DEFAULT 0UL
36 :
37 : // https://github.com/anza-xyz/agave/blob/v2.0.1/sdk/program/src/clock.rs#L147
38 : #define SLOT_MAX ULONG_MAX
39 :
40 : // https://github.com/anza-xyz/agave/blob/v2.0.1/sdk/program/src/vote/state/mod.rs#L886
41 0 : #define VERSION_OFFSET (4UL)
42 :
43 : // https://github.com/anza-xyz/agave/blob/v2.0.1/sdk/program/src/vote/state/mod.rs#L887
44 : #define DEFAULT_PRIOR_VOTERS_END (118)
45 :
46 : // https://github.com/anza-xyz/agave/blob/v2.0.1/sdk/program/src/vote/state/vote_state_1_14_11.rs#L6
47 0 : #define DEFAULT_PRIOR_VOTERS_OFFSET_1_14_11 (82UL)
48 :
49 : // https://github.com/anza-xyz/agave/blob/v2.0.1/sdk/program/src/vote/state/vote_state_1_14_11.rs#L60
50 : #define DEFAULT_PRIOR_VOTERS_END_1_14_11 (86UL)
51 :
52 : #define ACCOUNTS_MAX 4 /* Vote instructions take in at most 4 accounts */
53 :
54 : #define DEFAULT_COMPUTE_UNITS 2100UL
55 :
56 : /**********************************************************************/
57 : /* size_of */
58 : /**********************************************************************/
59 :
60 : // https://github.com/anza-xyz/agave/blob/v2.0.1/sdk/program/src/vote/state/vote_state_versions.rs#L82
61 : static inline ulong
62 0 : size_of_versioned( int is_current ) {
63 0 : return fd_ulong_if( is_current, FD_VOTE_STATE_V3_SZ, FD_VOTE_STATE_V2_SZ );
64 0 : }
65 :
66 : /**********************************************************************/
67 : /* impl Lockout */
68 : /**********************************************************************/
69 :
70 : // https://github.com/anza-xyz/agave/blob/v2.0.1/sdk/program/src/vote/state/mod.rs#L104
71 : static inline ulong
72 0 : lockout( fd_vote_lockout_t * self ) {
73 : /* Confirmation count can never be greater than MAX_LOCKOUT_HISTORY, preventing overflow.
74 : Although Agave does not consider overflow, we do for fuzzing conformance. */
75 0 : ulong confirmation_count = fd_ulong_min( self->confirmation_count, MAX_LOCKOUT_HISTORY );
76 0 : return 1UL<<confirmation_count;
77 0 : }
78 :
79 : // https://github.com/anza-xyz/agave/blob/v2.0.1/sdk/program/src/vote/state/mod.rs#L110
80 : static inline ulong
81 0 : last_locked_out_slot( fd_vote_lockout_t * self ) {
82 0 : return fd_ulong_sat_add( self->slot, lockout( self ) );
83 0 : }
84 :
85 : // https://github.com/anza-xyz/agave/blob/v2.0.1/sdk/program/src/vote/state/mod.rs#L114
86 : static inline ulong
87 0 : is_locked_out_at_slot( fd_vote_lockout_t * self, ulong slot ) {
88 0 : return last_locked_out_slot( self ) >= slot;
89 0 : }
90 :
91 : // https://github.com/anza-xyz/agave/blob/v2.0.1/sdk/program/src/vote/state/mod.rs#L122
92 : static void
93 0 : increase_confirmation_count( fd_vote_lockout_t * self, uint by ) {
94 0 : self->confirmation_count = fd_uint_sat_add( self->confirmation_count, by );
95 0 : }
96 :
97 : /**********************************************************************/
98 : /* impl From<VoteState> for VoteState1_14_11 */
99 : /**********************************************************************/
100 :
101 : /* from_vote_state_1_14_11 converts a "current" vote state object into
102 : the older "v1.14.11" version. This destroys the "current" object in
103 : the process. spad is the bump allocator to be used, which must be
104 : the same as the one used for v1.14.11.
105 : */
106 :
107 : // https://github.com/anza-xyz/agave/blob/v2.0.1/sdk/program/src/vote/state/vote_state_1_14_11.rs#L67
108 : static void
109 : from_vote_state_1_14_11( fd_vote_state_t * vote_state,
110 : fd_vote_state_1_14_11_t * vote_state_1_14_11, /* out */
111 0 : fd_spad_t * spad ) {
112 0 : vote_state_1_14_11->node_pubkey = vote_state->node_pubkey; /* copy */
113 0 : vote_state_1_14_11->authorized_withdrawer = vote_state->authorized_withdrawer; /* copy */
114 0 : vote_state_1_14_11->commission = vote_state->commission; /* copy */
115 :
116 : // https://github.com/anza-xyz/agave/blob/v2.0.1/sdk/program/src/vote/state/vote_state_1_14_11.rs#L72
117 0 : if( vote_state->votes ) {
118 0 : uchar * deque_mem = fd_spad_alloc( spad,
119 0 : deq_fd_vote_lockout_t_align(),
120 0 : deq_fd_vote_lockout_t_footprint( deq_fd_landed_vote_t_cnt( vote_state->votes ) ) );
121 0 : vote_state_1_14_11->votes = deq_fd_vote_lockout_t_join(
122 0 : deq_fd_vote_lockout_t_new( deque_mem, deq_fd_landed_vote_t_cnt( vote_state->votes ) ) );
123 0 : for( deq_fd_landed_vote_t_iter_t iter = deq_fd_landed_vote_t_iter_init( vote_state->votes );
124 0 : !deq_fd_landed_vote_t_iter_done( vote_state->votes, iter );
125 0 : iter = deq_fd_landed_vote_t_iter_next( vote_state->votes, iter ) ) {
126 0 : fd_landed_vote_t const * landed_vote = deq_fd_landed_vote_t_iter_ele_const( vote_state->votes, iter );
127 0 : deq_fd_vote_lockout_t_push_tail_wrap( vote_state_1_14_11->votes, landed_vote->lockout );
128 0 : }
129 0 : }
130 :
131 0 : vote_state_1_14_11->has_root_slot = vote_state->has_root_slot; /* copy */
132 0 : vote_state_1_14_11->root_slot = vote_state->root_slot; /* copy */
133 0 : vote_state_1_14_11->authorized_voters = vote_state->authorized_voters; /* move */
134 0 : vote_state_1_14_11->prior_voters = vote_state->prior_voters; /* deep copy */
135 0 : vote_state_1_14_11->epoch_credits = vote_state->epoch_credits; /* move */
136 0 : vote_state_1_14_11->last_timestamp = vote_state->last_timestamp; /* deep copy */
137 :
138 : /* Clear moved objects */
139 0 : vote_state->authorized_voters.treap = NULL;
140 0 : vote_state->authorized_voters.pool = NULL;
141 0 : vote_state->epoch_credits = NULL;
142 :
143 0 : }
144 :
145 : /**********************************************************************/
146 : /* impl VoteAccount */
147 : /**********************************************************************/
148 :
149 : /* https://github.com/anza-xyz/agave/blob/v2.0.1/programs/vote/src/vote_state/mod.rs#L1074 */
150 : static fd_vote_state_versioned_t *
151 : get_state( fd_txn_account_t const * self,
152 : fd_spad_t * spad,
153 0 : int * err ) {
154 0 : int decode_err;
155 0 : fd_vote_state_versioned_t * res = fd_bincode_decode_spad(
156 0 : vote_state_versioned, spad,
157 0 : self->vt->get_data( self ),
158 0 : self->vt->get_data_len( self ),
159 0 : &decode_err );
160 0 : if( FD_UNLIKELY( decode_err ) ) {
161 0 : *err = FD_EXECUTOR_INSTR_ERR_INVALID_ACC_DATA;
162 0 : return NULL;
163 0 : }
164 0 : *err = FD_EXECUTOR_INSTR_SUCCESS;
165 0 : return res;
166 0 : }
167 :
168 : static int
169 : set_state( fd_borrowed_account_t * self,
170 0 : fd_vote_state_versioned_t * state ) {
171 : /* https://github.com/anza-xyz/agave/blob/v2.1.14/sdk/src/transaction_context.rs#L974 */
172 0 : uchar * data = NULL;
173 0 : ulong dlen = 0UL;
174 0 : int err = fd_borrowed_account_get_data_mut( self, &data, &dlen );
175 0 : if( FD_UNLIKELY( err ) ) {
176 0 : return err;
177 0 : }
178 :
179 : // https://github.com/anza-xyz/agave/blob/v2.0.1/sdk/src/transaction_context.rs#L978
180 0 : ulong serialized_size = fd_vote_state_versioned_size( state );
181 0 : if( FD_UNLIKELY( serialized_size > dlen ) )
182 0 : return FD_EXECUTOR_INSTR_ERR_ACC_DATA_TOO_SMALL;
183 :
184 : // https://github.com/anza-xyz/agave/blob/v2.0.1/sdk/src/transaction_context.rs#L983
185 0 : fd_bincode_encode_ctx_t encode =
186 0 : { .data = data,
187 0 : .dataend = data + dlen };
188 0 : do {
189 0 : int err = fd_vote_state_versioned_encode( state, &encode );
190 0 : if( FD_UNLIKELY( err ) ) FD_LOG_ERR(( "fd_vote_state_versioned_encode failed (%d)", err ));
191 0 : } while(0);
192 :
193 0 : return FD_EXECUTOR_INSTR_SUCCESS;
194 0 : }
195 :
196 : /**********************************************************************/
197 : /* impl AuthorizedVoters */
198 : /**********************************************************************/
199 :
200 : // https://github.com/anza-xyz/agave/blob/v2.0.1/sdk/program/src/vote/authorized_voters.rs#L17
201 : static void
202 : authorized_voters_new( ulong epoch,
203 : fd_pubkey_t const * pubkey,
204 : fd_spad_t * spad,
205 0 : fd_vote_authorized_voters_t * authorized_voters /* out */ ) {
206 0 : uchar * pool_mem = fd_spad_alloc( spad,
207 0 : fd_vote_authorized_voters_pool_align(),
208 0 : fd_vote_authorized_voters_pool_footprint( FD_VOTE_AUTHORIZED_VOTERS_MIN ) );
209 0 : authorized_voters->pool = fd_vote_authorized_voters_pool_join(
210 0 : fd_vote_authorized_voters_pool_new( pool_mem, FD_VOTE_AUTHORIZED_VOTERS_MIN ) );
211 :
212 0 : uchar * treap_mem = fd_spad_alloc( spad,
213 0 : fd_vote_authorized_voters_treap_align(),
214 0 : fd_vote_authorized_voters_treap_footprint( FD_VOTE_AUTHORIZED_VOTERS_MIN ) );
215 0 : authorized_voters->treap = fd_vote_authorized_voters_treap_join(
216 0 : fd_vote_authorized_voters_treap_new( treap_mem, FD_VOTE_AUTHORIZED_VOTERS_MIN ) );
217 0 : if( 0 == fd_vote_authorized_voters_pool_free( authorized_voters->pool ) ) {
218 0 : FD_LOG_ERR(( "Authorized_voter pool is empty" ));
219 0 : }
220 0 : fd_vote_authorized_voter_t * ele =
221 0 : fd_vote_authorized_voters_pool_ele_acquire( authorized_voters->pool );
222 0 : ele->epoch = epoch;
223 0 : ele->pubkey = *pubkey;
224 0 : ele->prio = (ulong)&ele->pubkey;
225 0 : fd_vote_authorized_voters_treap_ele_insert(
226 0 : authorized_voters->treap, ele, authorized_voters->pool );
227 0 : }
228 :
229 : static inline int
230 0 : authorized_voters_is_empty( fd_vote_authorized_voters_t * self ) {
231 0 : return fd_vote_authorized_voters_treap_ele_cnt( self->treap ) == 0;
232 0 : }
233 :
234 : // https://github.com/anza-xyz/agave/blob/v2.0.1/sdk/program/src/vote/authorized_voters.rs#L80
235 : static inline int
236 0 : authorized_voters_contains( fd_vote_authorized_voters_t * self, ulong epoch ) {
237 0 : return !!fd_vote_authorized_voters_treap_ele_query( self->treap, epoch, self->pool );
238 0 : }
239 :
240 : // https://github.com/anza-xyz/agave/blob/v2.0.1/sdk/program/src/vote/authorized_voters.rs#L72
241 : static inline fd_vote_authorized_voter_t *
242 0 : authorized_voters_last( fd_vote_authorized_voters_t * self ) {
243 0 : fd_vote_authorized_voters_treap_rev_iter_t iter =
244 0 : fd_vote_authorized_voters_treap_rev_iter_init( self->treap, self->pool );
245 0 : return fd_vote_authorized_voters_treap_rev_iter_ele( iter, self->pool );
246 0 : }
247 :
248 : // https://github.com/anza-xyz/agave/blob/v2.0.1/sdk/program/src/vote/authorized_voters.rs#L43
249 : static void
250 : authorized_voters_purge_authorized_voters( fd_vote_authorized_voters_t * self,
251 : ulong current_epoch,
252 0 : fd_exec_instr_ctx_t const * ctx /* spad */ ) {
253 :
254 0 : FD_SPAD_FRAME_BEGIN( ctx->txn_ctx->spad ) {
255 :
256 : // https://github.com/anza-xyz/agave/blob/v2.0.1/sdk/program/src/vote/authorized_voters.rs#L46
257 0 : ulong *expired_keys = fd_spad_alloc( ctx->txn_ctx->spad, alignof(ulong), fd_vote_authorized_voters_treap_ele_cnt(self->treap) * sizeof(ulong) );
258 0 : ulong key_cnt = 0;
259 0 : for( fd_vote_authorized_voters_treap_fwd_iter_t iter =
260 0 : fd_vote_authorized_voters_treap_fwd_iter_init( self->treap, self->pool );
261 0 : !fd_vote_authorized_voters_treap_fwd_iter_done( iter );
262 0 : iter = fd_vote_authorized_voters_treap_fwd_iter_next( iter, self->pool ) ) {
263 0 : fd_vote_authorized_voter_t * ele =
264 0 : fd_vote_authorized_voters_treap_fwd_iter_ele( iter, self->pool );
265 0 : if( ele->epoch < current_epoch ) expired_keys[key_cnt++] = ele->epoch;
266 0 : }
267 :
268 : // https://github.com/anza-xyz/agave/blob/v2.0.1/sdk/program/src/vote/authorized_voters.rs#L52
269 0 : for( ulong i = 0; i < key_cnt; i++ ) {
270 0 : fd_vote_authorized_voter_t * ele =
271 0 : fd_vote_authorized_voters_treap_ele_query( self->treap, expired_keys[i], self->pool );
272 0 : fd_vote_authorized_voters_treap_ele_remove( self->treap, ele, self->pool );
273 0 : fd_vote_authorized_voters_pool_ele_release( self->pool, ele );
274 : // fd_vote_authorized_voter_destroy( &self->pool[i], &ctx3 );
275 0 : }
276 :
277 : // https://github.com/anza-xyz/agave/blob/v2.0.1/sdk/program/src/vote/authorized_voters.rs#L60
278 0 : FD_TEST( !authorized_voters_is_empty( self ) );
279 :
280 0 : } FD_SPAD_FRAME_END;
281 :
282 0 : }
283 :
284 : // https://github.com/anza-xyz/agave/blob/v2.0.1/sdk/program/src/vote/authorized_voters.rs#L91
285 : static fd_vote_authorized_voter_t *
286 : authorized_voters_get_or_calculate_authorized_voter_for_epoch( fd_vote_authorized_voters_t * self,
287 : ulong epoch,
288 0 : int * existed ) {
289 0 : *existed = 0;
290 0 : ulong latest_epoch = 0;
291 0 : fd_vote_authorized_voter_t * res =
292 0 : fd_vote_authorized_voters_treap_ele_query( self->treap, epoch, self->pool );
293 : // "predecessor" would be more big-O optimal here, but mirroring labs logic
294 : // https://github.com/anza-xyz/agave/blob/v2.0.1/sdk/program/src/vote/authorized_voters.rs#L93
295 0 : if( FD_UNLIKELY( !res ) ) {
296 0 : for( fd_vote_authorized_voters_treap_fwd_iter_t iter =
297 0 : fd_vote_authorized_voters_treap_fwd_iter_init( self->treap, self->pool );
298 0 : !fd_vote_authorized_voters_treap_fwd_iter_done( iter );
299 0 : iter = fd_vote_authorized_voters_treap_fwd_iter_next( iter, self->pool ) ) {
300 0 : fd_vote_authorized_voter_t * ele =
301 0 : fd_vote_authorized_voters_treap_fwd_iter_ele( iter, self->pool );
302 0 : if( ele->epoch < epoch && ( latest_epoch == 0 || ele->epoch > latest_epoch ) ) {
303 0 : latest_epoch = ele->epoch;
304 0 : res = ele;
305 0 : }
306 0 : }
307 0 : *existed = 0;
308 0 : return res;
309 0 : } else {
310 0 : *existed = 1;
311 0 : return res;
312 0 : }
313 0 : return res;
314 0 : }
315 :
316 : // https://github.com/anza-xyz/agave/blob/v2.0.1/sdk/program/src/vote/authorized_voters.rs#L28
317 : static fd_vote_authorized_voter_t *
318 : authorized_voters_get_and_cache_authorized_voter_for_epoch( fd_vote_authorized_voters_t * self,
319 0 : ulong epoch ) {
320 0 : int existed = 0;
321 : // https://github.com/anza-xyz/agave/blob/v2.0.1/sdk/program/src/vote/authorized_voters.rs#L29
322 0 : fd_vote_authorized_voter_t * res =
323 0 : authorized_voters_get_or_calculate_authorized_voter_for_epoch( self, epoch, &existed );
324 0 : if( !res ) return NULL;
325 : // https://github.com/anza-xyz/agave/blob/v2.0.1/sdk/program/src/vote/authorized_voters.rs#L32
326 0 : if( !existed ) {
327 : /* insert cannot fail because !existed */
328 0 : if( 0 == fd_vote_authorized_voters_pool_free( self->pool) ) {
329 0 : FD_LOG_ERR(( "Authorized_voter pool is empty" ));
330 0 : }
331 0 : fd_vote_authorized_voter_t * ele = fd_vote_authorized_voters_pool_ele_acquire( self->pool );
332 0 : ele->epoch = epoch;
333 0 : ele->pubkey = res->pubkey;
334 0 : ele->prio = (ulong)&res->pubkey;
335 : // https://github.com/anza-xyz/agave/blob/v2.0.1/sdk/program/src/vote/authorized_voters.rs#L33
336 0 : fd_vote_authorized_voters_treap_ele_insert( self->treap, ele, self->pool );
337 0 : }
338 0 : return res;
339 0 : }
340 :
341 : /**********************************************************************/
342 : /* impl VoteStateVersions */
343 : /**********************************************************************/
344 :
345 : // https://github.com/anza-xyz/agave/blob/v2.0.1/sdk/program/src/vote/state/vote_state_versions.rs#L66
346 : static fd_landed_vote_t *
347 : landed_votes_from_lockouts( fd_vote_lockout_t * lockouts,
348 0 : fd_spad_t * spad ) {
349 0 : if( !lockouts ) return NULL;
350 :
351 : /* Allocate MAX_LOCKOUT_HISTORY (sane case) by default. In case the
352 : vote account is corrupt, allocate as many entries are needed. */
353 :
354 0 : ulong cnt = deq_fd_vote_lockout_t_cnt( lockouts );
355 0 : cnt = fd_ulong_max( cnt, MAX_LOCKOUT_HISTORY );
356 0 : uchar * deque_mem = fd_spad_alloc( spad,
357 0 : deq_fd_landed_vote_t_align(),
358 0 : deq_fd_landed_vote_t_footprint( cnt ) );
359 0 : fd_landed_vote_t * landed_votes = deq_fd_landed_vote_t_join( deq_fd_landed_vote_t_new( deque_mem, deq_fd_landed_vote_t_footprint( cnt ) ) );
360 :
361 0 : for( deq_fd_vote_lockout_t_iter_t iter = deq_fd_vote_lockout_t_iter_init( lockouts );
362 0 : !deq_fd_vote_lockout_t_iter_done( lockouts, iter );
363 0 : iter = deq_fd_vote_lockout_t_iter_next( lockouts, iter ) ) {
364 0 : fd_vote_lockout_t const * ele = deq_fd_vote_lockout_t_iter_ele_const( lockouts, iter );
365 :
366 0 : fd_landed_vote_t * elem = deq_fd_landed_vote_t_push_tail_nocopy( landed_votes );
367 0 : fd_landed_vote_new( elem );
368 :
369 0 : elem->latency = 0;
370 0 : elem->lockout.slot = ele->slot;
371 0 : elem->lockout.confirmation_count = ele->confirmation_count;
372 0 : }
373 :
374 0 : return landed_votes;
375 0 : }
376 :
377 : // https://github.com/anza-xyz/agave/blob/v2.0.1/sdk/program/src/vote/state/vote_state_versions.rs#L70
378 : static inline int
379 0 : is_uninitialized( fd_vote_state_versioned_t * self ) {
380 0 : switch( self->discriminant ) {
381 0 : case fd_vote_state_versioned_enum_v0_23_5:;
382 : // https://github.com/anza-xyz/agave/blob/v2.0.1/sdk/program/src/vote/state/vote_state_versions.rs#L73
383 0 : fd_pubkey_t pubkey_default = { 0 };
384 0 : return 0 ==
385 0 : memcmp( &self->inner.v0_23_5.authorized_voter, &pubkey_default, sizeof( fd_pubkey_t ) );
386 0 : case fd_vote_state_versioned_enum_v1_14_11:;
387 0 : return authorized_voters_is_empty( &self->inner.v1_14_11.authorized_voters );
388 0 : case fd_vote_state_versioned_enum_current:
389 0 : return authorized_voters_is_empty( &self->inner.current.authorized_voters );
390 0 : default:
391 0 : FD_LOG_ERR(( "missing handler or invalid vote state version: %u", self->discriminant ));
392 0 : }
393 0 : }
394 :
395 : // https://github.com/anza-xyz/agave/blob/v2.0.1/sdk/program/src/vote/state/vote_state_versions.rs#L73
396 : static void
397 : convert_to_current( fd_vote_state_versioned_t * self,
398 0 : fd_spad_t * spad ) {
399 0 : switch( self->discriminant ) {
400 : // https://github.com/anza-xyz/agave/blob/v2.0.1/sdk/program/src/vote/state/vote_state_versions.rs#L19
401 0 : case fd_vote_state_versioned_enum_v0_23_5: {
402 0 : fd_vote_state_0_23_5_t * state = &self->inner.v0_23_5;
403 0 : fd_vote_authorized_voters_t authorized_voters;
404 : // https://github.com/anza-xyz/agave/blob/v2.0.1/sdk/program/src/vote/state/vote_state_versions.rs#L21
405 0 : authorized_voters_new(
406 0 : state->authorized_voter_epoch, &state->authorized_voter, spad, &authorized_voters );
407 :
408 : /* Temporary to hold current */
409 : // https://github.com/anza-xyz/agave/blob/v2.0.1/sdk/program/src/vote/state/vote_state_versions.rs#L23
410 0 : fd_vote_state_t current = {
411 0 : .node_pubkey = state->node_pubkey, /* copy */
412 0 : .authorized_withdrawer = state->authorized_withdrawer, /* copy */
413 0 : .commission = state->commission, /* copy */
414 0 : .votes = landed_votes_from_lockouts( state->votes, spad ),
415 0 : .has_root_slot = state->has_root_slot, /* copy */
416 0 : .root_slot = state->root_slot, /* copy */
417 0 : .authorized_voters = authorized_voters,
418 0 : .prior_voters = (fd_vote_prior_voters_t) {
419 0 : .idx = 31UL,
420 0 : .is_empty = 1,
421 0 : },
422 0 : .epoch_credits = state->epoch_credits, /* move */
423 0 : .last_timestamp = state->last_timestamp, /* deep copy */
424 0 : };
425 :
426 : /* Move objects */
427 0 : state->epoch_credits = NULL;
428 :
429 : /* Emplace new vote state into target */
430 0 : self->discriminant = fd_vote_state_versioned_enum_current;
431 0 : self->inner.current = current;
432 :
433 0 : break;
434 0 : }
435 : // https://github.com/anza-xyz/agave/blob/v2.0.1/sdk/program/src/vote/state/vote_state_versions.rs#L44
436 0 : case fd_vote_state_versioned_enum_v1_14_11: {
437 0 : fd_vote_state_1_14_11_t * state = &self->inner.v1_14_11;
438 :
439 : /* Temporary to hold current */
440 0 : fd_vote_state_t current = {
441 0 : .node_pubkey = state->node_pubkey, /* copy */
442 0 : .authorized_withdrawer = state->authorized_withdrawer, /* copy */
443 0 : .commission = state->commission, /* copy */
444 0 : .votes = landed_votes_from_lockouts( state->votes, spad ),
445 0 : .has_root_slot = state->has_root_slot, /* copy */
446 0 : .root_slot = state->root_slot, /* copy */
447 0 : .authorized_voters = state->authorized_voters, /* move */
448 0 : .prior_voters = state->prior_voters, /* deep copy */
449 0 : .epoch_credits = state->epoch_credits, /* move */
450 0 : .last_timestamp = state->last_timestamp /* deep copy */
451 0 : };
452 :
453 : /* Move objects */
454 0 : state->authorized_voters.treap = NULL;
455 0 : state->authorized_voters.pool = NULL;
456 0 : state->epoch_credits = NULL;
457 :
458 : /* Emplace new vote state into target */
459 0 : self->discriminant = fd_vote_state_versioned_enum_current;
460 0 : self->inner.current = current;
461 :
462 0 : break;
463 0 : }
464 0 : case fd_vote_state_versioned_enum_current:
465 0 : break;
466 0 : default:
467 0 : FD_LOG_ERR( ( "unsupported vote state version: %u", self->discriminant ) );
468 0 : }
469 0 : }
470 :
471 : /**********************************************************************/
472 : /* impl VoteState */
473 : /**********************************************************************/
474 :
475 : // https://github.com/anza-xyz/agave/blob/v2.0.1/sdk/program/src/vote/state/mod.rs#L428
476 : static void
477 : vote_state_new( fd_vote_init_t * vote_init,
478 : fd_sol_sysvar_clock_t const * clock,
479 : fd_spad_t * spad,
480 0 : fd_vote_state_t * vote_state /* out */ ) {
481 0 : vote_state->node_pubkey = vote_init->node_pubkey;
482 0 : authorized_voters_new(
483 0 : clock->epoch, &vote_init->authorized_voter, spad, &vote_state->authorized_voters );
484 : // https://github.com/anza-xyz/agave/blob/v2.0.1/sdk/program/src/vote/state/mod.rs#L431
485 0 : vote_state->authorized_withdrawer = vote_init->authorized_withdrawer;
486 0 : vote_state->commission = vote_init->commission;
487 : // https://github.com/anza-xyz/agave/blob/v2.0.1/sdk/program/src/vote/state/mod.rs#L434
488 0 : vote_state->prior_voters.idx = 31;
489 0 : vote_state->prior_voters.is_empty = 1;
490 0 : }
491 :
492 : // https://github.com/anza-xyz/agave/blob/v2.0.1/programs/vote/src/vote_state/mod.rs#L985
493 : static inline int
494 : verify_authorized_signer( fd_pubkey_t const * authorized,
495 0 : fd_pubkey_t const * signers[static FD_TXN_SIG_MAX] ) {
496 : // https://github.com/anza-xyz/agave/blob/v2.0.1/programs/vote/src/vote_state/mod.rs#L989
497 0 : return fd_signers_contains( signers, authorized ) ?
498 0 : FD_EXECUTOR_INSTR_SUCCESS :
499 0 : FD_EXECUTOR_INSTR_ERR_MISSING_REQUIRED_SIGNATURE;
500 0 : }
501 :
502 : // lambda function: https://github.com/anza-xyz/agave/blob/v2.0.1/programs/vote/src/vote_state/mod.rs#L873
503 : static inline int
504 : verify( fd_pubkey_t * epoch_authorized_voter,
505 : int authorized_withdrawer_signer,
506 0 : fd_pubkey_t const * signers[static FD_TXN_SIG_MAX] ) {
507 0 : if( authorized_withdrawer_signer )
508 0 : return 0;
509 0 : else
510 0 : return verify_authorized_signer( epoch_authorized_voter, signers );
511 0 : }
512 :
513 : // https://github.com/anza-xyz/agave/blob/v2.0.1/sdk/program/src/vote/state/mod.rs#L845
514 : static void
515 0 : pop_expired_votes( fd_vote_state_t * self, ulong next_vote_slot ) {
516 0 : while( !deq_fd_landed_vote_t_empty( self->votes ) ) {
517 0 : fd_landed_vote_t * vote = deq_fd_landed_vote_t_peek_tail( self->votes );
518 0 : if( !( is_locked_out_at_slot( &vote->lockout, next_vote_slot ) ) ) {
519 0 : deq_fd_landed_vote_t_pop_tail( self->votes );
520 0 : } else {
521 0 : break;
522 0 : }
523 0 : }
524 0 : }
525 :
526 : // https://github.com/anza-xyz/agave/blob/v2.0.1/sdk/program/src/vote/state/mod.rs#L855
527 : static void
528 0 : double_lockouts( fd_vote_state_t * self ) {
529 : // https://github.com/anza-xyz/agave/blob/v2.0.1/sdk/program/src/vote/state/mod.rs#L856
530 0 : ulong stack_depth = deq_fd_landed_vote_t_cnt( self->votes );
531 0 : ulong i = 0;
532 : // https://github.com/anza-xyz/agave/blob/v2.0.1/sdk/program/src/vote/state/mod.rs#L857
533 0 : for( deq_fd_landed_vote_t_iter_t iter = deq_fd_landed_vote_t_iter_init( self->votes );
534 0 : !deq_fd_landed_vote_t_iter_done( self->votes, iter );
535 0 : iter = deq_fd_landed_vote_t_iter_next( self->votes, iter ) ) {
536 0 : fd_landed_vote_t * v = deq_fd_landed_vote_t_iter_ele( self->votes, iter );
537 : // https://github.com/anza-xyz/agave/blob/v2.0.1/sdk/program/src/vote/state/mod.rs#L860
538 0 : if( stack_depth >
539 0 : fd_ulong_checked_add_expect(
540 0 : i,
541 0 : (ulong)v->lockout.confirmation_count,
542 0 : "`confirmation_count` and tower_size should be bounded by `MAX_LOCKOUT_HISTORY`" ) )
543 0 : {
544 : // https://github.com/anza-xyz/agave/blob/v2.0.1/sdk/program/src/vote/state/mod.rs#L864
545 0 : increase_confirmation_count( &v->lockout, 1 );
546 0 : }
547 0 : i++;
548 0 : }
549 0 : }
550 : // https://github.com/anza-xyz/agave/blob/v2.0.1/sdk/program/src/vote/state/mod.rs#L668
551 : static inline uchar
552 0 : compute_vote_latency( ulong voted_for_slot, ulong current_slot ) {
553 0 : return (uchar)fd_ulong_min( fd_ulong_sat_sub( current_slot, voted_for_slot ), UCHAR_MAX );
554 0 : }
555 :
556 : // https://github.com/anza-xyz/agave/blob/v2.0.1/sdk/program/src/vote/state/mod.rs#L673
557 : static ulong
558 0 : credits_for_vote_at_index( fd_vote_state_t * self, ulong index ) {
559 : // https://github.com/anza-xyz/agave/blob/v2.0.1/sdk/program/src/vote/state/mod.rs#L679
560 0 : fd_landed_vote_t * landed_vote = deq_fd_landed_vote_t_peek_index( self->votes, index );
561 0 : ulong latency = landed_vote == NULL ? 0 : landed_vote->latency;
562 : // https://github.com/anza-xyz/agave/blob/v2.0.1/sdk/program/src/vote/state/mod.rs#L683
563 0 : ulong max_credits = VOTE_CREDITS_MAXIMUM_PER_SLOT;
564 :
565 : // If latency is 0, this means that the Lockout was created and stored from a software version
566 : // that did not store vote latencies; in this case, 1 credit is awarded
567 : // https://github.com/anza-xyz/agave/blob/v2.0.1/sdk/program/src/vote/state/mod.rs#L691
568 0 : if( FD_UNLIKELY( latency == 0 ) ) {
569 0 : return 1;
570 0 : }
571 :
572 0 : ulong diff = 0;
573 0 : int cf = fd_ulong_checked_sub( latency, VOTE_CREDITS_GRACE_SLOTS, &diff );
574 0 : if( cf != 0 || diff == 0 ) {
575 : // https://github.com/anza-xyz/agave/blob/v2.0.1/sdk/program/src/vote/state/mod.rs#L697
576 0 : return max_credits;
577 0 : }
578 :
579 0 : ulong credits = 0;
580 0 : cf = fd_ulong_checked_sub( max_credits, diff, &credits );
581 0 : if( cf != 0 || credits == 0 ) {
582 : // https://github.com/anza-xyz/agave/blob/v2.0.1/sdk/program/src/vote/state/mod.rs#L705
583 0 : return 1;
584 0 : }
585 : // https://github.com/anza-xyz/agave/blob/v2.0.1/sdk/program/src/vote/state/mod.rs#L707
586 0 : return credits;
587 0 : }
588 :
589 : // https://github.com/anza-xyz/agave/blob/v2.0.1/sdk/program/src/vote/state/mod.rs#L639
590 : static void
591 0 : increment_credits( fd_vote_state_t * self, ulong epoch, ulong credits ) {
592 : // https://github.com/anza-xyz/agave/blob/v2.0.1/sdk/program/src/vote/state/mod.rs#L643
593 0 : if( FD_UNLIKELY( deq_fd_vote_epoch_credits_t_empty( self->epoch_credits ) ) ) {
594 : // https://github.com/anza-xyz/agave/blob/v2.0.1/sdk/program/src/vote/state/mod.rs#L644
595 0 : deq_fd_vote_epoch_credits_t_push_tail_wrap(
596 0 : self->epoch_credits,
597 0 : ( fd_vote_epoch_credits_t ){ .epoch = epoch, .credits = 0, .prev_credits = 0 } );
598 0 : } else if( FD_LIKELY( epoch !=
599 0 : deq_fd_vote_epoch_credits_t_peek_tail( self->epoch_credits )->epoch ) ) {
600 0 : fd_vote_epoch_credits_t * last = deq_fd_vote_epoch_credits_t_peek_tail( self->epoch_credits );
601 :
602 0 : ulong credits = last->credits;
603 0 : ulong prev_credits = last->prev_credits;
604 :
605 : // https://github.com/anza-xyz/agave/blob/v2.0.1/sdk/program/src/vote/state/mod.rs#L648
606 0 : if( FD_LIKELY( credits != prev_credits ) ) {
607 : /* Although Agave performs a `.remove(0)` AFTER the call to `.push()`, there is an edge case
608 : where the epoch credits is full, making the call to `_push_tail()` unsafe. Since Agave's
609 : structures are dynamically allocated, it is safe for them to simply call `.push()`
610 : and then popping afterwards. We have to reverse the order of operations to maintain
611 : correct behavior and avoid overflowing the deque.
612 : https://github.com/anza-xyz/agave/blob/v2.0.1/sdk/program/src/vote/state/mod.rs#L658 */
613 0 : if( FD_UNLIKELY( deq_fd_vote_epoch_credits_t_cnt( self->epoch_credits ) >=
614 0 : MAX_EPOCH_CREDITS_HISTORY ) ) {
615 0 : deq_fd_vote_epoch_credits_t_pop_head( self->epoch_credits );
616 0 : }
617 :
618 : /* This will not fail because we already popped if we're at capacity,
619 : since the epoch_credits deque is allocated with a minimum
620 : capacity of MAX_EPOCH_CREDITS_HISTORY. */
621 0 : deq_fd_vote_epoch_credits_t_push_tail(
622 0 : self->epoch_credits,
623 0 : ( fd_vote_epoch_credits_t ){
624 0 : .epoch = epoch, .credits = credits, .prev_credits = credits } );
625 0 : } else {
626 : // https://github.com/anza-xyz/agave/blob/v2.0.1/sdk/program/src/vote/state/mod.rs#L654
627 0 : deq_fd_vote_epoch_credits_t_peek_tail( self->epoch_credits )->epoch = epoch;
628 0 : }
629 0 : }
630 :
631 : // https://github.com/anza-xyz/agave/blob/v2.0.1/sdk/program/src/vote/state/mod.rs#L663
632 0 : deq_fd_vote_epoch_credits_t_peek_tail( self->epoch_credits )->credits = fd_ulong_sat_add(
633 0 : deq_fd_vote_epoch_credits_t_peek_tail( self->epoch_credits )->credits, credits );
634 0 : }
635 :
636 : static inline ulong *
637 : last_voted_slot( fd_vote_state_t * self );
638 :
639 : // https://github.com/anza-xyz/agave/blob/v2.0.1/sdk/program/src/vote/state/mod.rs#L595
640 : static void
641 : process_next_vote_slot( fd_vote_state_t * self,
642 : ulong next_vote_slot,
643 : ulong epoch,
644 0 : ulong current_slot ) {
645 0 : ulong * last_voted_slot_ = last_voted_slot( self );
646 0 : if( FD_UNLIKELY( last_voted_slot_ && next_vote_slot <= *last_voted_slot_ ) ) return;
647 :
648 0 : pop_expired_votes( self, next_vote_slot );
649 :
650 0 : fd_landed_vote_t landed_vote = { .latency = compute_vote_latency( next_vote_slot, current_slot ),
651 0 : ( fd_vote_lockout_t ){ .slot = next_vote_slot } };
652 :
653 : // https://github.com/anza-xyz/agave/blob/v2.0.1/sdk/program/src/vote/state/mod.rs#L623
654 0 : if( FD_UNLIKELY( deq_fd_landed_vote_t_cnt( self->votes ) == MAX_LOCKOUT_HISTORY ) ) {
655 0 : ulong credits = credits_for_vote_at_index( self, 0 );
656 0 : fd_landed_vote_t landed_vote = deq_fd_landed_vote_t_pop_head( self->votes );
657 0 : self->has_root_slot = 1;
658 0 : self->root_slot = landed_vote.lockout.slot;
659 :
660 0 : increment_credits( self, epoch, credits );
661 0 : }
662 :
663 : // https://github.com/anza-xyz/agave/blob/v2.0.1/sdk/program/src/vote/state/mod.rs#L634
664 0 : deq_fd_landed_vote_t_push_tail_wrap( self->votes, landed_vote );
665 0 : double_lockouts( self );
666 0 : }
667 :
668 : // https://github.com/anza-xyz/agave/blob/v2.0.1/sdk/program/src/vote/state/mod.rs#L828
669 : static int
670 : get_and_update_authorized_voter( fd_vote_state_t * self,
671 : ulong current_epoch,
672 : fd_pubkey_t ** pubkey /* out */,
673 0 : fd_exec_instr_ctx_t const * ctx /* spad */ ) {
674 : // https://github.com/anza-xyz/agave/blob/v2.0.1/sdk/program/src/vote/state/mod.rs#L832
675 0 : fd_vote_authorized_voter_t * authorized_voter =
676 0 : authorized_voters_get_and_cache_authorized_voter_for_epoch( &self->authorized_voters,
677 0 : current_epoch );
678 : // https://github.com/anza-xyz/agave/blob/v2.0.1/sdk/program/src/vote/state/mod.rs#L835
679 0 : if( FD_UNLIKELY( !authorized_voter ) ) return FD_EXECUTOR_INSTR_ERR_INVALID_ACC_DATA;
680 0 : *pubkey = &authorized_voter->pubkey;
681 : // https://github.com/anza-xyz/agave/blob/v2.0.1/sdk/program/src/vote/state/mod.rs#L837
682 0 : authorized_voters_purge_authorized_voters( &self->authorized_voters, current_epoch, ctx );
683 0 : return FD_EXECUTOR_INSTR_SUCCESS;
684 0 : }
685 :
686 : // https://github.com/anza-xyz/agave/blob/v2.0.1/sdk/program/src/vote/state/mod.rs#L768
687 : static int
688 : set_new_authorized_voter( fd_vote_state_t * self,
689 : fd_pubkey_t const * authorized_pubkey,
690 : ulong current_epoch,
691 : ulong target_epoch,
692 : /* "verify" closure */ int authorized_withdrawer_signer,
693 : /* "verify" closure */ fd_pubkey_t const * signers[static FD_TXN_SIG_MAX],
694 0 : fd_exec_instr_ctx_t const * ctx ) {
695 0 : int rc;
696 0 : fd_pubkey_t * epoch_authorized_voter = NULL;
697 :
698 : // https://github.com/anza-xyz/agave/blob/v2.0.1/sdk/program/src/vote/state/mod.rs#L778
699 0 : rc = get_and_update_authorized_voter( self, current_epoch, &epoch_authorized_voter, ctx );
700 0 : if( FD_UNLIKELY( rc ) ) return rc;
701 :
702 : // https://github.com/anza-xyz/agave/blob/v2.0.1/sdk/program/src/vote/state/mod.rs#L779
703 0 : rc = verify( epoch_authorized_voter, authorized_withdrawer_signer, signers );
704 0 : if( FD_UNLIKELY( rc ) ) return rc;
705 :
706 : // https://github.com/anza-xyz/agave/blob/v2.0.1/sdk/program/src/vote/state/mod.rs#L786
707 0 : if( FD_UNLIKELY( authorized_voters_contains( &self->authorized_voters, target_epoch ) ) ) {
708 0 : ctx->txn_ctx->custom_err = FD_VOTE_ERR_TOO_SOON_TO_REAUTHORIZE;
709 0 : return FD_EXECUTOR_INSTR_ERR_CUSTOM_ERR;
710 0 : }
711 :
712 : // https://github.com/anza-xyz/agave/blob/v2.0.1/sdk/program/src/vote/state/mod.rs#L791
713 0 : fd_vote_authorized_voter_t * latest_authorized =
714 0 : authorized_voters_last( &self->authorized_voters );
715 : // https://github.com/anza-xyz/agave/blob/v2.0.1/sdk/program/src/vote/state/mod.rs#L794
716 0 : if( FD_UNLIKELY( ( !latest_authorized ) ) ) return FD_EXECUTOR_INSTR_ERR_INVALID_ACC_DATA;
717 0 : ulong latest_epoch = latest_authorized->epoch;
718 0 : fd_pubkey_t * latest_authorized_pubkey = &latest_authorized->pubkey;
719 :
720 : // https://github.com/anza-xyz/agave/blob/v2.0.1/sdk/program/src/vote/state/mod.rs#L799
721 0 : if( 0 != memcmp( latest_authorized_pubkey, authorized_pubkey, sizeof( fd_pubkey_t ) ) ) {
722 0 : fd_vote_prior_voters_t * prior_voters = &self->prior_voters;
723 :
724 : // https://github.com/anza-xyz/agave/blob/v2.0.1/sdk/program/src/vote/state/mod.rs#L801
725 0 : ulong epoch_of_last_authorized_switch = 0UL;
726 0 : if( (!prior_voters->is_empty) & (prior_voters->idx < 32) ) {
727 0 : epoch_of_last_authorized_switch = prior_voters->buf[prior_voters->idx].epoch_end;
728 0 : }
729 :
730 : // https://github.com/anza-xyz/agave/blob/v2.0.1/sdk/program/src/vote/state/mod.rs#L810
731 0 : if( target_epoch <= latest_epoch )
732 0 : return FD_EXECUTOR_INSTR_ERR_INVALID_ACC_DATA;
733 :
734 : // https://github.com/anza-xyz/agave/blob/v2.0.1/sdk/program/src/vote/state/mod.rs#L815
735 0 : prior_voters->idx += 1UL;
736 0 : prior_voters->idx %= 32UL;
737 0 : prior_voters->buf[prior_voters->idx] =
738 0 : ( fd_vote_prior_voter_t ){ .pubkey = *latest_authorized_pubkey,
739 0 : .epoch_start = epoch_of_last_authorized_switch,
740 0 : .epoch_end = target_epoch };
741 0 : prior_voters->is_empty = 0;
742 0 : }
743 :
744 : // https://github.com/anza-xyz/agave/blob/v2.0.1/sdk/program/src/vote/state/mod.rs#L822
745 0 : if( 0 == fd_vote_authorized_voters_pool_free( self->authorized_voters.pool) ) {
746 0 : FD_LOG_ERR(( "Authorized_voter pool is empty" ));
747 0 : }
748 :
749 0 : fd_vote_authorized_voter_t * ele =
750 0 : fd_vote_authorized_voters_pool_ele_acquire( self->authorized_voters.pool );
751 0 : ele->epoch = target_epoch;
752 0 : ele->pubkey = *authorized_pubkey;
753 0 : ele->prio = (ulong)&ele->pubkey;
754 0 : fd_vote_authorized_voters_treap_ele_insert(
755 0 : self->authorized_voters.treap, ele, self->authorized_voters.pool );
756 :
757 0 : return 0;
758 0 : }
759 :
760 : // https://github.com/anza-xyz/agave/blob/v2.0.1/sdk/program/src/vote/state/mod.rs#L869
761 : static int
762 : process_timestamp( fd_vote_state_t * self,
763 : ulong slot,
764 : long timestamp,
765 0 : fd_exec_instr_ctx_t const * ctx ) {
766 0 : if( FD_UNLIKELY(
767 0 : ( slot < self->last_timestamp.slot || timestamp < self->last_timestamp.timestamp ) ||
768 0 : ( slot == self->last_timestamp.slot &&
769 0 : ( slot != self->last_timestamp.slot || timestamp != self->last_timestamp.timestamp ) &&
770 0 : self->last_timestamp.slot != 0 ) ) ) {
771 0 : ctx->txn_ctx->custom_err = FD_VOTE_ERR_TIMESTAMP_TOO_OLD;
772 0 : return FD_EXECUTOR_INSTR_ERR_CUSTOM_ERR;
773 0 : }
774 0 : self->last_timestamp.slot = slot;
775 0 : self->last_timestamp.timestamp = timestamp;
776 :
777 0 : return 0;
778 0 : }
779 :
780 : /**********************************************************************/
781 : /* mod vote_state */
782 : /**********************************************************************/
783 :
784 : // https://github.com/anza-xyz/agave/blob/v2.0.1/programs/vote/src/vote_state/mod.rs#L166
785 : __attribute__((warn_unused_result)) static int
786 : set_vote_account_state( fd_borrowed_account_t * vote_account,
787 : fd_vote_state_t * vote_state,
788 0 : fd_exec_instr_ctx_t const * ctx /* feature_set */ ) {
789 : /* This is a horrible conditional expression in Agave.
790 : The terms were broken up into their own variables. */
791 :
792 0 : ulong vsz = size_of_versioned( 1 );
793 :
794 : // https://github.com/anza-xyz/agave/blob/v2.0.1/programs/vote/src/vote_state/mod.rs#L175
795 0 : fd_rent_t const rent = fd_sysvar_cache_rent_read_nofail( ctx->sysvar_cache );
796 0 : int resize_needed = fd_borrowed_account_get_data_len( vote_account ) < vsz;
797 0 : int resize_rent_exempt = fd_rent_exempt_minimum_balance( &rent, vsz ) <= fd_borrowed_account_get_lamports( vote_account );
798 :
799 : /* The resize operation itself is part of the horrible conditional,
800 : but behind a short-circuit operator. */
801 0 : int resize_failed = 0;
802 0 : if( resize_needed && resize_rent_exempt ) {
803 : // https://github.com/anza-xyz/agave/blob/v2.0.1/programs/vote/src/vote_state/mod.rs#L179
804 0 : resize_failed =
805 0 : fd_borrowed_account_set_data_length( vote_account, vsz ) != FD_EXECUTOR_INSTR_SUCCESS;
806 0 : }
807 :
808 0 : if( FD_UNLIKELY( resize_needed && ( !resize_rent_exempt || resize_failed ) ) ) {
809 : // https://github.com/anza-xyz/agave/blob/v2.0.1/programs/vote/src/vote_state/mod.rs#L184
810 0 : fd_vote_state_versioned_t v1_14_11;
811 0 : fd_vote_state_versioned_new_disc( &v1_14_11, fd_vote_state_versioned_enum_v1_14_11 );
812 0 : from_vote_state_1_14_11( vote_state, &v1_14_11.inner.v1_14_11, ctx->txn_ctx->spad );
813 0 : return set_state( vote_account, &v1_14_11 );
814 0 : }
815 :
816 : // https://github.com/anza-xyz/agave/blob/v2.0.1/programs/vote/src/vote_state/mod.rs#L189
817 : // TODO: This is stupid... optimize this...
818 0 : fd_vote_state_versioned_t new_current = { .discriminant = fd_vote_state_versioned_enum_current,
819 0 : .inner = { .current = *vote_state } };
820 0 : return set_state( vote_account, &new_current );
821 0 : }
822 :
823 : // https://github.com/anza-xyz/agave/blob/v2.0.1/sdk/program/src/vote/state/mod.rs#L727
824 : static inline fd_vote_lockout_t *
825 0 : last_lockout( fd_vote_state_t * self ) {
826 0 : if( deq_fd_landed_vote_t_empty( self->votes ) ) return NULL;
827 0 : fd_landed_vote_t * last_vote = deq_fd_landed_vote_t_peek_tail( self->votes );
828 0 : return &last_vote->lockout;
829 0 : }
830 :
831 : // https://github.com/anza-xyz/agave/blob/v2.0.1/sdk/program/src/vote/state/mod.rs#L731
832 : static inline ulong *
833 0 : last_voted_slot( fd_vote_state_t * self ) {
834 0 : fd_vote_lockout_t * last_lockout_ = last_lockout( self );
835 0 : if( FD_UNLIKELY( !last_lockout_ ) ) return NULL;
836 0 : return &last_lockout_->slot;
837 0 : }
838 :
839 : // https://github.com/anza-xyz/agave/blob/v2.0.1/sdk/program/src/vote/state/mod.rs#L573
840 : static uchar
841 0 : contains_slot( fd_vote_state_t * vote_state, ulong slot ) {
842 : /* Logic is copied from slice::binary_search_by() in Rust. While not fully optimized,
843 : it aims to achieve fuzzing conformance for both sorted and unsorted inputs. */
844 0 : ulong size = deq_fd_landed_vote_t_cnt( vote_state->votes );
845 0 : if( FD_UNLIKELY( size==0UL ) ) return 0;
846 :
847 0 : ulong base = 0UL;
848 0 : while( size>1UL ) {
849 0 : ulong half = size / 2UL;
850 0 : ulong mid = base + half;
851 0 : ulong mid_slot = deq_fd_landed_vote_t_peek_index_const( vote_state->votes, mid )->lockout.slot;
852 0 : base = (slot<mid_slot) ? base : mid;
853 0 : size -= half;
854 0 : }
855 :
856 0 : return deq_fd_landed_vote_t_peek_index_const( vote_state->votes, base )->lockout.slot==slot;
857 0 : }
858 :
859 : // https://github.com/anza-xyz/agave/blob/v2.0.1/programs/vote/src/vote_state/mod.rs#L201
860 : static int
861 : check_and_filter_proposed_vote_state( fd_vote_state_t * vote_state,
862 : fd_vote_lockout_t * proposed_lockouts,
863 : uchar * proposed_has_root,
864 : ulong * proposed_root,
865 : fd_hash_t const * proposed_hash,
866 : fd_slot_hash_t const * slot_hashes, /* deque */
867 0 : fd_exec_instr_ctx_t const * ctx ) {
868 : // https://github.com/anza-xyz/agave/blob/v2.0.1/programs/vote/src/vote_state/mod.rs#L208
869 0 : if( FD_UNLIKELY( deq_fd_vote_lockout_t_empty( proposed_lockouts ) ) ) {
870 0 : ctx->txn_ctx->custom_err = FD_VOTE_ERR_EMPTY_SLOTS;
871 0 : return FD_EXECUTOR_INSTR_ERR_CUSTOM_ERR;
872 0 : }
873 0 : fd_landed_vote_t const * last_vote = NULL;
874 0 : if( !deq_fd_landed_vote_t_empty( vote_state->votes ) ) {
875 : // https://github.com/anza-xyz/agave/blob/v2.0.1/programs/vote/src/vote_state/mod.rs#L212
876 0 : last_vote = deq_fd_landed_vote_t_peek_tail( vote_state->votes );
877 0 : }
878 : // https://github.com/anza-xyz/agave/blob/v2.0.1/programs/vote/src/vote_state/mod.rs#L218
879 0 : if( FD_LIKELY( last_vote ) ) {
880 0 : if( FD_UNLIKELY( deq_fd_vote_lockout_t_peek_tail_const( proposed_lockouts )->slot <=
881 0 : last_vote->lockout.slot ) ) {
882 0 : ctx->txn_ctx->custom_err = FD_VOTE_ERROR_VOTE_TOO_OLD;
883 0 : return FD_EXECUTOR_INSTR_ERR_CUSTOM_ERR;
884 0 : }
885 0 : }
886 :
887 : /* must be nonempty, checked above */
888 0 : ulong last_vote_state_update_slot = deq_fd_vote_lockout_t_peek_tail_const( proposed_lockouts )->slot;
889 :
890 : // https://github.com/anza-xyz/agave/blob/v2.0.1/programs/vote/src/vote_state/mod.rs#L224
891 0 : if( FD_UNLIKELY( deq_fd_slot_hash_t_empty( slot_hashes ) ) ) {
892 0 : ctx->txn_ctx->custom_err = FD_VOTE_ERR_SLOTS_MISMATCH;
893 0 : return FD_EXECUTOR_INSTR_ERR_CUSTOM_ERR;
894 0 : }
895 :
896 : // https://github.com/anza-xyz/agave/blob/v2.0.1/programs/vote/src/vote_state/mod.rs#L227
897 0 : ulong earliest_slot_hash_in_history = deq_fd_slot_hash_t_peek_tail_const( slot_hashes )->slot;
898 :
899 : /* Check if the proposed vote is too old to be in the SlotHash history */
900 : // https://github.com/anza-xyz/agave/blob/v2.0.1/programs/vote/src/vote_state/mod.rs#L230
901 0 : if( FD_UNLIKELY( last_vote_state_update_slot < earliest_slot_hash_in_history ) ) {
902 0 : ctx->txn_ctx->custom_err = FD_VOTE_ERROR_VOTE_TOO_OLD;
903 0 : return FD_EXECUTOR_INSTR_ERR_CUSTOM_ERR;
904 0 : }
905 :
906 : /* Check if the proposed root is too old */
907 : // https://github.com/anza-xyz/agave/blob/v2.0.1/programs/vote/src/vote_state/mod.rs#L237
908 0 : if( *proposed_has_root ) {
909 0 : ulong const proposed_root_ = *proposed_root;
910 : /* If the new proposed root `R` is less than the earliest slot hash in the history
911 : such that we cannot verify whether the slot was actually was on this fork, set
912 : the root to the latest vote in the current vote that's less than R. */
913 : // https://github.com/anza-xyz/agave/blob/v2.0.1/programs/vote/src/vote_state/mod.rs#L242
914 0 : if( proposed_root_ < earliest_slot_hash_in_history ) {
915 0 : *proposed_has_root = vote_state->has_root_slot;
916 0 : *proposed_root = vote_state->root_slot;
917 0 : for( deq_fd_landed_vote_t_iter_t iter =
918 0 : deq_fd_landed_vote_t_iter_init_rev( vote_state->votes );
919 0 : !deq_fd_landed_vote_t_iter_done_rev( vote_state->votes, iter );
920 0 : iter = deq_fd_landed_vote_t_iter_prev( vote_state->votes, iter ) ) {
921 : /* Ensure we're iterating from biggest to smallest vote in the
922 : current vote state */
923 0 : fd_landed_vote_t const * vote = deq_fd_landed_vote_t_iter_ele_const( vote_state->votes, iter );
924 : // https://github.com/anza-xyz/agave/blob/v2.0.1/programs/vote/src/vote_state/mod.rs#L248
925 0 : if( vote->lockout.slot <= proposed_root_ ) {
926 0 : *proposed_has_root = 1;
927 0 : *proposed_root = vote->lockout.slot;
928 0 : break;
929 0 : }
930 :
931 0 : }
932 0 : }
933 0 : }
934 :
935 0 : FD_SPAD_FRAME_BEGIN( ctx->txn_ctx->spad ) {
936 :
937 : /* Index into the new proposed vote state's slots, starting with the root if it exists then
938 : we use this mutable root to fold checking the root slot into the below loop for performance */
939 0 : int has_root_to_check = *proposed_has_root;
940 : // https://github.com/anza-xyz/agave/blob/v2.0.1/programs/vote/src/vote_state/mod.rs#L259
941 0 : ulong root_to_check = *proposed_root;
942 0 : ulong proposed_lockouts_index = 0UL;
943 0 : ulong lockouts_len = deq_fd_vote_lockout_t_cnt( proposed_lockouts );
944 :
945 : /* Index into the slot_hashes, starting at the oldest known slot hash */
946 : // https://github.com/anza-xyz/agave/blob/v2.0.1/programs/vote/src/vote_state/mod.rs#L264
947 0 : ulong slot_hashes_index = deq_fd_slot_hash_t_cnt( slot_hashes );
948 0 : ulong * proposed_lockouts_indexes_to_filter = fd_spad_alloc( ctx->txn_ctx->spad, alignof(ulong), lockouts_len * sizeof(ulong) );
949 0 : ulong filter_index = 0UL;
950 :
951 :
952 : /* Note:
953 :
954 : 1) `vote_state_update.lockouts` is sorted from oldest/smallest vote to newest/largest
955 : vote, due to the way votes are applied to the vote state (newest votes
956 : pushed to the back).
957 :
958 : 2) Conversely, `slot_hashes` is sorted from newest/largest vote to
959 : the oldest/smallest vote
960 :
961 : Unlike for vote updates, vote state updates here can't only check votes older than the last vote
962 : because have to ensure that every slot is actually part of the history, not just the most
963 : recent ones */
964 :
965 : // https://github.com/anza-xyz/agave/blob/v2.0.1/programs/vote/src/vote_state/mod.rs#L279
966 0 : while( proposed_lockouts_index < lockouts_len && slot_hashes_index > 0 ) {
967 0 : ulong proposed_vote_slot =
968 0 : fd_ulong_if( has_root_to_check,
969 : // https://github.com/anza-xyz/agave/blob/v2.0.1/programs/vote/src/vote_state/mod.rs#L281
970 0 : root_to_check,
971 : // https://github.com/anza-xyz/agave/blob/v2.0.1/programs/vote/src/vote_state/mod.rs#L283
972 0 : deq_fd_vote_lockout_t_peek_index_const( proposed_lockouts,
973 0 : proposed_lockouts_index )
974 0 : ->slot );
975 : // https://github.com/anza-xyz/agave/blob/v2.0.1/programs/vote/src/vote_state/mod.rs#L285
976 0 : if( !has_root_to_check && proposed_lockouts_index > 0UL &&
977 0 : proposed_vote_slot <=
978 0 : deq_fd_vote_lockout_t_peek_index_const(
979 0 : proposed_lockouts,
980 0 : fd_ulong_checked_sub_expect(
981 0 : proposed_lockouts_index,
982 0 : 1,
983 0 : "`proposed_lockouts_index` is positive when checking `SlotsNotOrdered`" ) )
984 0 : ->slot ) {
985 : // https://github.com/anza-xyz/agave/blob/v2.0.1/programs/vote/src/vote_state/mod.rs#L293
986 0 : ctx->txn_ctx->custom_err = FD_VOTE_ERR_SLOTS_NOT_ORDERED;
987 0 : return FD_EXECUTOR_INSTR_ERR_CUSTOM_ERR;
988 0 : }
989 : // https://github.com/anza-xyz/agave/blob/v2.0.1/programs/vote/src/vote_state/mod.rs#L295
990 0 : ulong ancestor_slot =
991 0 : deq_fd_slot_hash_t_peek_index_const(
992 0 : slot_hashes,
993 0 : fd_ulong_checked_sub_expect(
994 0 : slot_hashes_index,
995 0 : 1UL,
996 0 : "`slot_hashes_index` is positive when computing `ancestor_slot`" ) )
997 0 : ->slot;
998 : /* Find if this slot in the proposed vote state exists in the SlotHashes history
999 : to confirm if it was a valid ancestor on this fork */
1000 : // https://github.com/anza-xyz/agave/blob/v2.0.1/programs/vote/src/vote_state/mod.rs#L303
1001 0 : if( proposed_vote_slot < ancestor_slot ) {
1002 0 : if( slot_hashes_index == deq_fd_slot_hash_t_cnt( slot_hashes ) ) {
1003 : /* The vote slot does not exist in the SlotHashes history because it's too old,
1004 : i.e. older than the oldest slot in the history. */
1005 0 : if( proposed_vote_slot >= earliest_slot_hash_in_history ) {
1006 0 : ctx->txn_ctx->custom_err = 0;
1007 0 : return FD_EXECUTOR_INSTR_ERR_CUSTOM_ERR;
1008 0 : }
1009 : // https://github.com/anza-xyz/agave/blob/v2.0.1/programs/vote/src/vote_state/mod.rs#L310
1010 0 : if( !contains_slot( vote_state, proposed_vote_slot ) && !has_root_to_check ) {
1011 : /* If the vote slot is both:
1012 : 1) Too old
1013 : 2) Doesn't already exist in vote state
1014 : Then filter it out */
1015 0 : proposed_lockouts_indexes_to_filter[filter_index++] = proposed_lockouts_index; }
1016 : // https://github.com/anza-xyz/agave/blob/v2.0.1/programs/vote/src/vote_state/mod.rs#L318
1017 0 : if( has_root_to_check ) {
1018 0 : ulong new_proposed_root = root_to_check;
1019 : /* 1. Because `root_to_check.is_some()`, then we know that
1020 : we haven't checked the root yet in this loop, so
1021 : `proposed_vote_slot` == `new_proposed_root` == `vote_state_update.root` */
1022 0 : FD_TEST( new_proposed_root == proposed_vote_slot );
1023 : /* 2. We know from the assert earlier in the function that
1024 : `proposed_vote_slot < earliest_slot_hash_in_history`,
1025 : so from 1. we know that `new_proposed_root < earliest_slot_hash_in_history` */
1026 0 : if( new_proposed_root >= earliest_slot_hash_in_history ) {
1027 0 : ctx->txn_ctx->custom_err = 0;
1028 0 : return FD_EXECUTOR_INSTR_ERR_CUSTOM_ERR;
1029 0 : }
1030 :
1031 : // https://github.com/anza-xyz/agave/blob/v2.0.1/programs/vote/src/vote_state/mod.rs#L329
1032 0 : has_root_to_check = 0;
1033 0 : root_to_check = ULONG_MAX;
1034 0 : } else {
1035 : // https://github.com/anza-xyz/agave/blob/v2.0.1/programs/vote/src/vote_state/mod.rs#L331
1036 0 : proposed_lockouts_index = fd_ulong_checked_add_expect(
1037 0 : proposed_lockouts_index,
1038 0 : 1,
1039 0 : "`proposed_lockouts_index` is bounded by `MAX_LOCKOUT_HISTORY` when "
1040 0 : "`proposed_vote_slot` is too old to be in SlotHashes history" );
1041 0 : }
1042 0 : continue;
1043 0 : } else {
1044 : /* If the vote slot is new enough to be in the slot history,
1045 : but is not part of the slot history, then it must belong to another fork,
1046 : which means this vote state update is invalid. */
1047 : // https://github.com/anza-xyz/agave/blob/v2.0.1/programs/vote/src/vote_state/mod.rs#L340
1048 0 : if( has_root_to_check ) {
1049 0 : ctx->txn_ctx->custom_err = FD_VOTE_ERR_ROOT_ON_DIFFERENT_FORK;
1050 0 : return FD_EXECUTOR_INSTR_ERR_CUSTOM_ERR;
1051 0 : } else {
1052 0 : ctx->txn_ctx->custom_err = FD_VOTE_ERR_SLOTS_MISMATCH;
1053 0 : return FD_EXECUTOR_INSTR_ERR_CUSTOM_ERR;
1054 0 : }
1055 0 : }
1056 0 : } else if( proposed_vote_slot > ancestor_slot ) {
1057 : // https://github.com/anza-xyz/agave/blob/v2.0.1/programs/vote/src/vote_state/mod.rs#L347
1058 :
1059 : /* Decrement `slot_hashes_index` to find newer slots in the SlotHashes history */
1060 0 : slot_hashes_index = fd_ulong_checked_sub_expect(
1061 0 : slot_hashes_index,
1062 0 : 1,
1063 0 : "`slot_hashes_index` is positive when finding newer slots in SlotHashes history" );
1064 0 : continue;
1065 0 : } else {
1066 : // https://github.com/anza-xyz/agave/blob/v2.0.1/programs/vote/src/vote_state/mod.rs#L354
1067 :
1068 : /* Once the slot in `vote_state_update.lockouts` is found, bump to the next slot
1069 : in `vote_state_update.lockouts` and continue. If we were checking the root,
1070 : start checking the vote state instead. */
1071 0 : if( has_root_to_check ) {
1072 0 : has_root_to_check = 0;
1073 0 : root_to_check = ULONG_MAX;
1074 0 : } else {
1075 0 : proposed_lockouts_index = fd_ulong_checked_add_expect(
1076 0 : proposed_lockouts_index,
1077 0 : 1,
1078 0 : "`proposed_lockouts_index` is bounded by `MAX_LOCKOUT_HISTORY` "
1079 0 : "when match is found in SlotHashes history" );
1080 0 : slot_hashes_index = fd_ulong_checked_sub_expect(
1081 0 : slot_hashes_index,
1082 0 : 1,
1083 0 : "`slot_hashes_index` is positive when match is found in SlotHashes history" );
1084 0 : }
1085 0 : }
1086 0 : }
1087 :
1088 : // https://github.com/anza-xyz/agave/blob/v2.0.1/programs/vote/src/vote_state/mod.rs#L372
1089 0 : if( proposed_lockouts_index != deq_fd_vote_lockout_t_cnt( proposed_lockouts ) ) {
1090 : /* The last vote slot in the update did not exist in SlotHashes */
1091 0 : ctx->txn_ctx->custom_err = FD_VOTE_ERR_SLOTS_MISMATCH;
1092 0 : return FD_EXECUTOR_INSTR_ERR_CUSTOM_ERR;
1093 0 : }
1094 :
1095 : // https://github.com/anza-xyz/agave/blob/v2.0.1/programs/vote/src/vote_state/mod.rs#L401
1096 0 : if( memcmp( &deq_fd_slot_hash_t_peek_index_const( slot_hashes, slot_hashes_index )->hash,
1097 0 : proposed_hash,
1098 0 : sizeof( fd_hash_t ) ) != 0 ) {
1099 : /* This means the newest vote in the slot has a match that
1100 : doesn't match the expected hash for that slot on this fork */
1101 0 : ctx->txn_ctx->custom_err = FD_VOTE_ERR_SLOTS_HASH_MISMATCH;
1102 0 : return FD_EXECUTOR_INSTR_ERR_CUSTOM_ERR;
1103 0 : }
1104 :
1105 : // https://github.com/anza-xyz/agave/blob/v2.0.1/programs/vote/src/vote_state/mod.rs#L418
1106 : /* Filter out the irrelevant votes */
1107 0 : proposed_lockouts_index = 0UL;
1108 0 : ulong filter_votes_index = deq_fd_vote_lockout_t_cnt( proposed_lockouts );
1109 :
1110 : /* We need to iterate backwards here because proposed_lockouts_indexes_to_filter[ i ] is a
1111 : strictly increasing value. Forward iterating can lead to the proposed lockout indicies to get
1112 : shifted leading to popping the wrong proposed lockouts or out of bounds accessing. We need
1113 : to be sure of handling underflow in this case. */
1114 :
1115 0 : for( ulong i=filter_index; i>0UL && filter_votes_index>0UL; i-- ) {
1116 0 : proposed_lockouts_index = i - 1UL;
1117 0 : if( FD_UNLIKELY(proposed_lockouts_indexes_to_filter[ proposed_lockouts_index ]>=filter_votes_index ) ) {
1118 0 : return FD_EXECUTOR_INSTR_ERR_UNSUPPORTED_PROGRAM_ID;
1119 0 : }
1120 :
1121 0 : deq_fd_vote_lockout_t_pop_idx_tail( proposed_lockouts, proposed_lockouts_indexes_to_filter[ proposed_lockouts_index ] );
1122 0 : filter_votes_index--;
1123 0 : }
1124 0 : } FD_SPAD_FRAME_END;
1125 :
1126 0 : return FD_EXECUTOR_INSTR_SUCCESS;
1127 0 : }
1128 :
1129 : // https://github.com/anza-xyz/agave/blob/v2.0.1/programs/vote/src/vote_state/mod.rs#L440
1130 : static int
1131 : check_slots_are_valid( fd_vote_state_t * vote_state,
1132 : ulong const * vote_slots,
1133 : fd_hash_t const * vote_hash,
1134 : fd_slot_hash_t const * slot_hashes, /* deque */
1135 0 : fd_exec_instr_ctx_t const * ctx ) {
1136 0 : ulong i = 0;
1137 0 : ulong j = deq_fd_slot_hash_t_cnt( slot_hashes );
1138 0 : ulong vote_slots_len = deq_ulong_cnt( vote_slots );
1139 :
1140 : // https://github.com/anza-xyz/agave/blob/v2.0.1/programs/vote/src/vote_state/mod.rs#L462
1141 0 : while( i < vote_slots_len && j > 0 ) {
1142 0 : ulong * last_voted_slot_ = last_voted_slot( vote_state );
1143 0 : if( FD_UNLIKELY( last_voted_slot_ &&
1144 0 : *deq_ulong_peek_index_const( vote_slots, i ) <= *last_voted_slot_ ) ) {
1145 : // https://github.com/anza-xyz/agave/blob/v2.0.1/programs/vote/src/vote_state/mod.rs#L469
1146 0 : i = fd_ulong_checked_add_expect(
1147 0 : i, 1, "`i` is bounded by `MAX_LOCKOUT_HISTORY` when finding larger slots" );
1148 0 : continue;
1149 0 : }
1150 :
1151 : // https://github.com/anza-xyz/agave/blob/v2.0.1/programs/vote/src/vote_state/mod.rs#L476
1152 0 : if( FD_UNLIKELY(
1153 0 : *deq_ulong_peek_index_const( vote_slots, i ) !=
1154 0 : deq_fd_slot_hash_t_peek_index_const( slot_hashes,
1155 0 : fd_ulong_checked_sub_expect( j, 1, "`j` is positive" ) )
1156 0 : ->slot ) ) {
1157 0 : j = fd_ulong_checked_sub_expect( j, 1, "`j` is positive when finding newer slots" );
1158 0 : continue;
1159 0 : }
1160 :
1161 : // https://github.com/anza-xyz/agave/blob/v2.0.1/programs/vote/src/vote_state/mod.rs#L486
1162 0 : i = fd_ulong_checked_add_expect(
1163 0 : i, 1, "`i` is bounded by `MAX_LOCKOUT_HISTORY` when hash is found" );
1164 0 : j = fd_ulong_checked_sub_expect( j, 1, "`j` is positive when hash is found" );
1165 0 : }
1166 :
1167 : // https://github.com/anza-xyz/agave/blob/v2.0.1/programs/vote/src/vote_state/mod.rs#L494
1168 0 : if( FD_UNLIKELY( j == deq_fd_slot_hash_t_cnt( slot_hashes ) ) ) {
1169 0 : ctx->txn_ctx->custom_err = FD_VOTE_ERROR_VOTE_TOO_OLD;
1170 0 : return FD_EXECUTOR_INSTR_ERR_CUSTOM_ERR;
1171 0 : }
1172 0 : if( FD_UNLIKELY( i != vote_slots_len ) ) {
1173 0 : ctx->txn_ctx->custom_err = FD_VOTE_ERR_SLOTS_MISMATCH;
1174 0 : return FD_EXECUTOR_INSTR_ERR_CUSTOM_ERR;
1175 0 : }
1176 : // https://github.com/anza-xyz/agave/blob/v2.0.1/programs/vote/src/vote_state/mod.rs#L514
1177 0 : if( FD_UNLIKELY( 0 != memcmp( &deq_fd_slot_hash_t_peek_index_const( slot_hashes, j )->hash,
1178 0 : vote_hash,
1179 0 : 32UL ) ) ) {
1180 0 : ctx->txn_ctx->custom_err = FD_VOTE_ERR_SLOTS_HASH_MISMATCH;
1181 0 : return FD_EXECUTOR_INSTR_ERR_CUSTOM_ERR;
1182 0 : }
1183 0 : return 0;
1184 0 : }
1185 :
1186 : // https://github.com/anza-xyz/agave/blob/v2.0.1/programs/vote/src/vote_state/mod.rs#L565
1187 : static int
1188 : process_new_vote_state( fd_vote_state_t * vote_state,
1189 : fd_landed_vote_t * new_state,
1190 : int has_new_root,
1191 : ulong new_root,
1192 : int has_timestamp,
1193 : long timestamp,
1194 : ulong epoch,
1195 : ulong current_slot,
1196 0 : fd_exec_instr_ctx_t const * ctx /* feature_set */ ) {
1197 0 : int rc;
1198 :
1199 0 : FD_TEST( !deq_fd_landed_vote_t_empty( new_state ) );
1200 : // https://github.com/anza-xyz/agave/blob/v2.0.1/programs/vote/src/vote_state/mod.rs#L575
1201 0 : if( FD_UNLIKELY( deq_fd_landed_vote_t_cnt( new_state ) > MAX_LOCKOUT_HISTORY ) ) {
1202 0 : ctx->txn_ctx->custom_err = FD_VOTE_ERR_TOO_MANY_VOTES;
1203 0 : return FD_EXECUTOR_INSTR_ERR_CUSTOM_ERR;
1204 0 : };
1205 :
1206 : // https://github.com/anza-xyz/agave/blob/v2.0.1/programs/vote/src/vote_state/mod.rs#L579
1207 0 : if( FD_UNLIKELY( has_new_root && vote_state->has_root_slot ) ) {
1208 : // https://github.com/anza-xyz/agave/blob/v2.0.1/programs/vote/src/vote_state/mod.rs#L581
1209 0 : if( FD_UNLIKELY( new_root < vote_state->root_slot ) ) {
1210 0 : ctx->txn_ctx->custom_err = FD_VOTE_ERR_ROOT_ROLL_BACK;
1211 0 : return FD_EXECUTOR_INSTR_ERR_CUSTOM_ERR;
1212 0 : }
1213 0 : } else if( FD_UNLIKELY( !has_new_root && vote_state->has_root_slot ) ) {
1214 : // https://github.com/anza-xyz/agave/blob/v2.0.1/programs/vote/src/vote_state/mod.rs#L586
1215 0 : ctx->txn_ctx->custom_err = FD_VOTE_ERR_ROOT_ROLL_BACK;
1216 0 : return FD_EXECUTOR_INSTR_ERR_CUSTOM_ERR;
1217 0 : } else {
1218 : // https://github.com/anza-xyz/agave/blob/v2.0.1/programs/vote/src/vote_state/mod.rs#L588
1219 : /* no-op */
1220 0 : }
1221 :
1222 0 : fd_landed_vote_t * previous_vote = NULL;
1223 0 : for( deq_fd_landed_vote_t_iter_t iter = deq_fd_landed_vote_t_iter_init( new_state );
1224 0 : !deq_fd_landed_vote_t_iter_done( new_state, iter );
1225 0 : iter = deq_fd_landed_vote_t_iter_next( new_state, iter ) ) {
1226 0 : fd_landed_vote_t * vote = deq_fd_landed_vote_t_iter_ele( new_state, iter );
1227 0 : if( FD_LIKELY( vote->lockout.confirmation_count == 0 ) ) {
1228 0 : ctx->txn_ctx->custom_err = FD_VOTE_ERR_ZERO_CONFIRMATIONS;
1229 0 : return FD_EXECUTOR_INSTR_ERR_CUSTOM_ERR;
1230 0 : } else if( FD_UNLIKELY( vote->lockout.confirmation_count > MAX_LOCKOUT_HISTORY ) ) {
1231 0 : ctx->txn_ctx->custom_err = FD_VOTE_ERR_CONFIRMATION_TOO_LARGE;
1232 0 : return FD_EXECUTOR_INSTR_ERR_CUSTOM_ERR;
1233 0 : } else if( FD_LIKELY( has_new_root ) ) {
1234 0 : if( FD_UNLIKELY( vote->lockout.slot <= new_root && new_root != SLOT_DEFAULT ) ) {
1235 0 : ctx->txn_ctx->custom_err = FD_VOTE_ERR_SLOT_SMALLER_THAN_ROOT;
1236 0 : return FD_EXECUTOR_INSTR_ERR_CUSTOM_ERR;
1237 0 : }
1238 0 : }
1239 :
1240 0 : if( FD_LIKELY( previous_vote ) ) {
1241 0 : if( FD_UNLIKELY( previous_vote->lockout.slot >= vote->lockout.slot ) ) {
1242 0 : ctx->txn_ctx->custom_err = FD_VOTE_ERR_SLOTS_NOT_ORDERED;
1243 0 : return FD_EXECUTOR_INSTR_ERR_CUSTOM_ERR;
1244 0 : } else if( FD_UNLIKELY( previous_vote->lockout.confirmation_count <=
1245 0 : vote->lockout.confirmation_count ) ) {
1246 0 : ctx->txn_ctx->custom_err = FD_VOTE_ERR_CONFIRMATIONS_NOT_ORDERED;
1247 0 : return FD_EXECUTOR_INSTR_ERR_CUSTOM_ERR;
1248 0 : } else if( FD_UNLIKELY( vote->lockout.slot >
1249 0 : last_locked_out_slot( &previous_vote->lockout ) ) ) {
1250 0 : ctx->txn_ctx->custom_err = FD_VOTE_ERR_NEW_VOTE_STATE_LOCKOUT_MISMATCH;
1251 0 : return FD_EXECUTOR_INSTR_ERR_CUSTOM_ERR;
1252 0 : }
1253 0 : }
1254 0 : previous_vote = vote;
1255 0 : }
1256 :
1257 0 : ulong current_vote_state_index = 0;
1258 0 : ulong new_vote_state_index = 0;
1259 :
1260 : /* Accumulate credits earned by newly rooted slots. The behavior changes with
1261 : timely_vote_credits: prior to this feature, there was a bug that counted a new root slot as 1
1262 : credit even if it had never been voted on. timely_vote_credits fixes this bug by only awarding
1263 : credits for slots actually voted on and finalized. */
1264 :
1265 : // https://github.com/anza-xyz/agave/blob/v2.0.1/programs/vote/src/vote_state/mod.rs#L635
1266 :
1267 : // https://github.com/anza-xyz/agave/blob/v2.0.1/programs/vote/src/vote_state/mod.rs#L641
1268 0 : ulong earned_credits = 0;
1269 :
1270 0 : if( FD_LIKELY( has_new_root ) ) {
1271 0 : for( deq_fd_landed_vote_t_iter_t iter = deq_fd_landed_vote_t_iter_init( vote_state->votes );
1272 0 : !deq_fd_landed_vote_t_iter_done( vote_state->votes, iter );
1273 0 : iter = deq_fd_landed_vote_t_iter_next( vote_state->votes, iter ) ) {
1274 0 : fd_landed_vote_t * current_vote = deq_fd_landed_vote_t_iter_ele( vote_state->votes, iter );
1275 : // https://github.com/anza-xyz/agave/blob/v2.0.1/programs/vote/src/vote_state/mod.rs#L647
1276 0 : if( FD_UNLIKELY( current_vote->lockout.slot <= new_root ) ) {
1277 : // this is safe because we're inside if has_new_root
1278 0 : earned_credits = fd_ulong_checked_add_expect(
1279 0 : credits_for_vote_at_index( vote_state,
1280 0 : current_vote_state_index ),
1281 0 : earned_credits,
1282 0 : "`earned_credits` does not overflow" );
1283 0 : current_vote_state_index = fd_ulong_checked_add_expect(
1284 0 : current_vote_state_index,
1285 0 : 1,
1286 0 : "`current_vote_state_index` is bounded by `MAX_LOCKOUT_HISTORY` "
1287 0 : "when processing new root" );
1288 0 : continue;
1289 0 : }
1290 0 : break;
1291 0 : }
1292 0 : }
1293 :
1294 : // For any slots newly added to the new vote state, the vote latency of that slot is not provided by the
1295 : // vote instruction contents, but instead is computed from the actual latency of the vote
1296 : // instruction. This prevents other validators from manipulating their own vote latencies within their vote states
1297 : // and forcing the rest of the cluster to accept these possibly fraudulent latency values. If the
1298 : // timly_vote_credits feature is not enabled then vote latency is set to 0 for new votes.
1299 : //
1300 : // For any slot that is in both the new state and the current state, the vote latency of the new state is taken
1301 : // from the current state.
1302 : //
1303 : // Thus vote latencies are set here for any newly vote-on slots when a vote instruction is received.
1304 : // They are copied into the new vote state after every vote for already voted-on slots.
1305 : // And when voted-on slots are rooted, the vote latencies stored in the vote state of all the rooted slots is used
1306 : // to compute credits earned.
1307 : // All validators compute the same vote latencies because all process the same vote instruction at the
1308 : // same slot, and the only time vote latencies are ever computed is at the time that their slot is first voted on;
1309 : // after that, the latencies are retained unaltered until the slot is rooted.
1310 :
1311 : // All the votes in our current vote state that are missing from the new vote state
1312 : // must have been expired by later votes. Check that the lockouts match this assumption.
1313 :
1314 : // https://github.com/anza-xyz/agave/blob/v2.0.1/programs/vote/src/vote_state/mod.rs#L686
1315 0 : while( current_vote_state_index < deq_fd_landed_vote_t_cnt( vote_state->votes ) &&
1316 0 : new_vote_state_index < deq_fd_landed_vote_t_cnt( new_state ) ) {
1317 0 : fd_landed_vote_t * current_vote =
1318 0 : deq_fd_landed_vote_t_peek_index( vote_state->votes, current_vote_state_index );
1319 : // https://github.com/anza-xyz/agave/blob/v2.0.1/programs/vote/src/vote_state/mod.rs#L690
1320 0 : fd_landed_vote_t * new_vote =
1321 0 : deq_fd_landed_vote_t_peek_index( new_state, new_vote_state_index );
1322 :
1323 : // https://github.com/anza-xyz/agave/blob/v2.0.1/programs/vote/src/vote_state/mod.rs#L696
1324 0 : if( FD_LIKELY( current_vote->lockout.slot < new_vote->lockout.slot ) ) {
1325 : /* The agave implementation of calculating the last locked out
1326 : slot does not calculate a min between the current vote's
1327 : confirmation count and max lockout history. The reason we do
1328 : this is to make sure that the fuzzers continue working:
1329 : the max lockout history can not be > MAX_LOCKOUT_HISTORY. */
1330 0 : ulong confirmation_count = fd_ulong_min( current_vote->lockout.confirmation_count, MAX_LOCKOUT_HISTORY );
1331 0 : ulong last_locked_out_slot = fd_ulong_sat_add( current_vote->lockout.slot,
1332 0 : (ulong)pow( INITIAL_LOCKOUT, (double)confirmation_count ) );
1333 : // https://github.com/anza-xyz/agave/blob/v2.0.1/programs/vote/src/vote_state/mod.rs#L697
1334 0 : if( last_locked_out_slot >= new_vote->lockout.slot ) {
1335 : // https://github.com/anza-xyz/agave/blob/v2.0.1/programs/vote/src/vote_state/mod.rs#L698
1336 0 : ctx->txn_ctx->custom_err = FD_VOTE_ERR_LOCKOUT_CONFLICT;
1337 0 : return FD_EXECUTOR_INSTR_ERR_CUSTOM_ERR;
1338 0 : }
1339 : // https://github.com/anza-xyz/agave/blob/v2.0.1/programs/vote/src/vote_state/mod.rs#L700
1340 0 : current_vote_state_index =
1341 0 : fd_ulong_checked_add_expect( current_vote_state_index,
1342 0 : 1,
1343 0 : "`current_vote_state_index` is bounded by "
1344 0 : "`MAX_LOCKOUT_HISTORY` when slot is less than proposed" );
1345 : // https://github.com/anza-xyz/agave/blob/v2.0.1/programs/vote/src/vote_state/mod.rs#L704
1346 0 : } else if( FD_UNLIKELY( current_vote->lockout.slot == new_vote->lockout.slot ) ) {
1347 : // https://github.com/anza-xyz/agave/blob/v2.0.1/programs/vote/src/vote_state/mod.rs#L707
1348 0 : if( new_vote->lockout.confirmation_count < current_vote->lockout.confirmation_count ) {
1349 0 : ctx->txn_ctx->custom_err = FD_VOTE_ERR_CONFIRMATION_ROLL_BACK;
1350 0 : return FD_EXECUTOR_INSTR_ERR_CUSTOM_ERR;
1351 0 : }
1352 :
1353 : // https://github.com/anza-xyz/agave/blob/v2.0.1/programs/vote/src/vote_state/mod.rs#L712
1354 0 : new_vote->latency =
1355 0 : deq_fd_landed_vote_t_peek_index( vote_state->votes, current_vote_state_index )->latency;
1356 :
1357 : // https://github.com/anza-xyz/agave/blob/v2.0.1/programs/vote/src/vote_state/mod.rs#L714
1358 0 : current_vote_state_index =
1359 0 : fd_ulong_checked_add_expect( current_vote_state_index,
1360 0 : 1,
1361 0 : "`current_vote_state_index` is bounded by "
1362 0 : "`MAX_LOCKOUT_HISTORY` when slot is equal to proposed" );
1363 : // https://github.com/anza-xyz/agave/blob/v2.0.1/programs/vote/src/vote_state/mod.rs#L717
1364 0 : new_vote_state_index =
1365 0 : fd_ulong_checked_add_expect( new_vote_state_index,
1366 0 : 1,
1367 0 : "`new_vote_state_index` is bounded by `MAX_LOCKOUT_HISTORY` "
1368 0 : "when slot is equal to proposed" );
1369 0 : } else {
1370 : // https://github.com/anza-xyz/agave/blob/v2.0.1/programs/vote/src/vote_state/mod.rs#L722
1371 0 : new_vote_state_index =
1372 0 : fd_ulong_checked_add_expect( new_vote_state_index,
1373 0 : 1,
1374 0 : "`new_vote_state_index` is bounded by `MAX_LOCKOUT_HISTORY` "
1375 0 : "when slot is greater than proposed" );
1376 0 : }
1377 0 : }
1378 :
1379 : // https://github.com/anza-xyz/agave/blob/v2.0.1/programs/vote/src/vote_state/mod.rs#L737
1380 0 : for( deq_fd_landed_vote_t_iter_t iter = deq_fd_landed_vote_t_iter_init( new_state );
1381 0 : !deq_fd_landed_vote_t_iter_done( new_state, iter );
1382 0 : iter = deq_fd_landed_vote_t_iter_next( new_state, iter ) ) {
1383 0 : fd_landed_vote_t * new_vote = deq_fd_landed_vote_t_iter_ele( new_state, iter );
1384 : // https://github.com/anza-xyz/agave/blob/v2.0.1/programs/vote/src/vote_state/mod.rs#L738
1385 0 : if( FD_UNLIKELY( new_vote->latency == 0 ) ) {
1386 : // this is unlikely because as validators upgrade, it should converge to the new vote state
1387 : // https://github.com/anza-xyz/agave/blob/v2.0.1/programs/vote/src/vote_state/mod.rs#L739
1388 0 : new_vote->latency = compute_vote_latency( new_vote->lockout.slot, current_slot );
1389 0 : }
1390 0 : }
1391 :
1392 : // doesn't matter what the value of slot if `is_some = 0` i.e. `Option::None`
1393 : // https://github.com/anza-xyz/agave/blob/v2.0.1/programs/vote/src/vote_state/mod.rs#L744
1394 0 : int both_none = !vote_state->has_root_slot && !has_new_root;
1395 0 : if( ( !both_none && ( vote_state->has_root_slot != has_new_root ||
1396 0 : vote_state->root_slot != new_root ) ) ) {
1397 0 : increment_credits( vote_state, epoch, earned_credits );
1398 0 : }
1399 : // https://github.com/anza-xyz/agave/blob/v2.0.1/programs/vote/src/vote_state/mod.rs#L750
1400 0 : if( FD_LIKELY( has_timestamp ) ) {
1401 : /* new_state asserted nonempty at function beginning */
1402 0 : if( deq_fd_landed_vote_t_empty( new_state ) ) {
1403 0 : FD_LOG_ERR(( "solana panic" ));
1404 : // TODO: solana panics ... unclear what to return
1405 0 : ctx->txn_ctx->custom_err = 0;
1406 0 : return FD_EXECUTOR_INSTR_ERR_CUSTOM_ERR;
1407 0 : }
1408 0 : ulong last_slot = deq_fd_landed_vote_t_peek_tail( new_state )->lockout.slot;
1409 0 : rc = process_timestamp( vote_state, last_slot, timestamp, ctx );
1410 0 : if( FD_UNLIKELY( rc ) ) { return rc; }
1411 0 : vote_state->last_timestamp.timestamp = timestamp;
1412 0 : }
1413 :
1414 : // https://github.com/anza-xyz/agave/blob/v2.0.1/programs/vote/src/vote_state/mod.rs#L754
1415 0 : vote_state->has_root_slot = (uchar)has_new_root;
1416 0 : vote_state->root_slot = new_root;
1417 :
1418 : // https://github.com/anza-xyz/agave/blob/v2.0.1/programs/vote/src/vote_state/mod.rs#L755
1419 0 : deq_fd_landed_vote_t_remove_all( vote_state->votes );
1420 0 : for( deq_fd_landed_vote_t_iter_t iter = deq_fd_landed_vote_t_iter_init( new_state );
1421 0 : !deq_fd_landed_vote_t_iter_done( new_state, iter );
1422 0 : iter = deq_fd_landed_vote_t_iter_next( new_state, iter ) ) {
1423 0 : fd_landed_vote_t * landed_vote = deq_fd_landed_vote_t_iter_ele( new_state, iter );
1424 0 : deq_fd_landed_vote_t_push_tail_wrap( vote_state->votes, *landed_vote );
1425 0 : }
1426 :
1427 0 : return FD_EXECUTOR_INSTR_SUCCESS;
1428 0 : }
1429 :
1430 : // https://github.com/anza-xyz/agave/blob/v2.0.1/programs/vote/src/vote_state/mod.rs#L849
1431 : static int
1432 : authorize( fd_borrowed_account_t * vote_account,
1433 : fd_pubkey_t const * authorized,
1434 : fd_vote_authorize_t vote_authorize,
1435 : fd_pubkey_t const * signers[static FD_TXN_SIG_MAX],
1436 : fd_sol_sysvar_clock_t const * clock,
1437 0 : fd_exec_instr_ctx_t const * ctx /* feature_set */ ) {
1438 0 : int rc = 0;
1439 :
1440 : // https://github.com/anza-xyz/agave/blob/v2.0.1/programs/vote/src/vote_state/mod.rs#L857
1441 :
1442 0 : fd_vote_state_versioned_t * vote_state_versioned = get_state( vote_account->acct,
1443 0 : ctx->txn_ctx->spad,
1444 0 : &rc );
1445 0 : if( FD_UNLIKELY( rc ) ) return rc;
1446 0 : convert_to_current( vote_state_versioned, ctx->txn_ctx->spad );
1447 0 : fd_vote_state_t * vote_state = &vote_state_versioned->inner.current;
1448 :
1449 : // https://github.com/anza-xyz/agave/blob/v2.0.1/programs/vote/src/vote_state/mod.rs#L861
1450 0 : switch( vote_authorize.discriminant ) {
1451 :
1452 : // https://github.com/anza-xyz/agave/blob/v2.0.1/programs/vote/src/vote_state/mod.rs#L862
1453 0 : case fd_vote_authorize_enum_voter:;
1454 :
1455 : // https://github.com/anza-xyz/agave/blob/v2.0.1/programs/vote/src/vote_state/mod.rs#L863
1456 0 : int authorized_withdrawer_signer =
1457 0 : FD_EXECUTOR_INSTR_SUCCESS ==
1458 0 : verify_authorized_signer( &vote_state->authorized_withdrawer, signers );
1459 :
1460 : // https://github.com/anza-xyz/agave/blob/v2.0.1/programs/vote/src/vote_state/mod.rs#L869-L872
1461 0 : ulong target_epoch;
1462 0 : rc = fd_ulong_checked_add( clock->leader_schedule_epoch, 1UL, &target_epoch );
1463 0 : if( FD_UNLIKELY( rc!=FD_EXECUTOR_INSTR_SUCCESS ) ) {
1464 0 : return FD_EXECUTOR_INSTR_ERR_INVALID_ACC_DATA;
1465 0 : }
1466 :
1467 : // https://github.com/anza-xyz/agave/blob/v2.0.1/programs/vote/src/vote_state/mod.rs#L866
1468 0 : rc = set_new_authorized_voter( vote_state,
1469 0 : authorized,
1470 0 : clock->epoch,
1471 0 : target_epoch,
1472 0 : authorized_withdrawer_signer,
1473 0 : signers,
1474 0 : ctx );
1475 0 : if( FD_UNLIKELY( rc ) ) return rc;
1476 0 : break;
1477 :
1478 : // https://github.com/anza-xyz/agave/blob/v2.0.1/programs/vote/src/vote_state/mod.rs#L883
1479 0 : case fd_vote_authorize_enum_withdrawer:
1480 0 : rc = verify_authorized_signer( &vote_state->authorized_withdrawer, signers );
1481 0 : if( FD_UNLIKELY( rc ) ) return rc;
1482 0 : vote_state->authorized_withdrawer = *authorized;
1483 0 : break;
1484 :
1485 : // failing exhaustive check is fatal
1486 0 : default:
1487 0 : __builtin_unreachable();
1488 0 : }
1489 :
1490 : // https://github.com/anza-xyz/agave/blob/v2.0.1/programs/vote/src/vote_state/mod.rs#L890
1491 0 : return set_vote_account_state( vote_account, vote_state, ctx );
1492 0 : }
1493 :
1494 : // https://github.com/anza-xyz/agave/blob/v2.0.1/programs/vote/src/vote_state/mod.rs#L894
1495 : static int
1496 : update_validator_identity( fd_borrowed_account_t * vote_account,
1497 : fd_pubkey_t const * node_pubkey,
1498 : fd_pubkey_t const * signers[static FD_TXN_SIG_MAX],
1499 0 : fd_exec_instr_ctx_t const * ctx /* feature_set */ ) {
1500 0 : int rc = 0;
1501 :
1502 : // https://github.com/anza-xyz/agave/blob/v2.0.1/programs/vote/src/vote_state/mod.rs#L900
1503 0 : fd_vote_state_versioned_t * vote_state_versioned = get_state( vote_account->acct,
1504 0 : ctx->txn_ctx->spad,
1505 0 : &rc );
1506 0 : if( FD_UNLIKELY( rc ) ) return rc;
1507 0 : convert_to_current( vote_state_versioned, ctx->txn_ctx->spad );
1508 0 : fd_vote_state_t * vote_state = &vote_state_versioned->inner.current;
1509 :
1510 : // https://github.com/anza-xyz/agave/blob/v2.0.1/programs/vote/src/vote_state/mod.rs#L905
1511 0 : rc = verify_authorized_signer( &vote_state->authorized_withdrawer, signers );
1512 0 : if( FD_UNLIKELY( rc ) ) return rc;
1513 :
1514 : // https://github.com/anza-xyz/agave/blob/v2.0.1/programs/vote/src/vote_state/mod.rs#L908
1515 0 : rc = verify_authorized_signer( node_pubkey, signers );
1516 0 : if( FD_UNLIKELY( rc ) ) return rc;
1517 :
1518 : // https://github.com/anza-xyz/agave/blob/v2.0.1/programs/vote/src/vote_state/mod.rs#L910
1519 0 : vote_state->node_pubkey = *node_pubkey;
1520 :
1521 : // https://github.com/anza-xyz/agave/blob/v2.0.1/programs/vote/src/vote_state/mod.rs#L912
1522 0 : return set_vote_account_state( vote_account, vote_state, ctx );
1523 0 : }
1524 :
1525 : // https://github.com/anza-xyz/agave/blob/v2.0.1/programs/vote/src/vote_state/mod.rs#L971
1526 : static int
1527 0 : is_commission_update_allowed( ulong slot, fd_epoch_schedule_t const * epoch_schedule ) {
1528 0 : if( FD_LIKELY( epoch_schedule->slots_per_epoch > 0UL ) ) {
1529 0 : ulong relative_slot = fd_ulong_sat_sub( slot, epoch_schedule->first_normal_slot );
1530 : // TODO underflow and overflow edge cases in addition to div by 0
1531 0 : relative_slot %= epoch_schedule->slots_per_epoch;
1532 0 : return fd_ulong_sat_mul( relative_slot, 2 ) <= epoch_schedule->slots_per_epoch;
1533 0 : } else {
1534 0 : return 1;
1535 0 : }
1536 0 : }
1537 :
1538 : // https://github.com/anza-xyz/agave/blob/v2.0.1/programs/vote/src/vote_state/mod.rs#L916
1539 : static int
1540 : update_commission( fd_borrowed_account_t * vote_account,
1541 : uchar commission,
1542 : fd_pubkey_t const * signers[static FD_TXN_SIG_MAX],
1543 : fd_epoch_schedule_t const * epoch_schedule,
1544 : fd_sol_sysvar_clock_t const * clock,
1545 0 : fd_exec_instr_ctx_t const * ctx /* feature_set */ ) {
1546 0 : int rc = 0;
1547 :
1548 : // https://github.com/anza-xyz/agave/blob/v2.0.1/programs/vote/src/vote_state/mod.rs#L925
1549 0 : fd_vote_state_versioned_t * vote_state_versioned = NULL;
1550 0 : fd_vote_state_t * vote_state = NULL;
1551 :
1552 : // https://github.com/anza-xyz/agave/blob/v2.0.1/programs/vote/src/vote_state/mod.rs#L927
1553 0 : int enforce_commission_update_rule = 1;
1554 0 : vote_state_versioned = get_state( vote_account->acct, ctx->txn_ctx->spad, &rc );
1555 0 : if ( FD_LIKELY( rc==FD_EXECUTOR_INSTR_SUCCESS ) ) {
1556 0 : convert_to_current( vote_state_versioned, ctx->txn_ctx->spad );
1557 0 : vote_state = &vote_state_versioned->inner.current;
1558 0 : enforce_commission_update_rule = commission > vote_state->commission;
1559 0 : }
1560 :
1561 : // https://github.com/anza-xyz/agave/blob/v2.0.1/programs/vote/src/vote_state/mod.rs#L940
1562 0 : if( FD_LIKELY( enforce_commission_update_rule ) ) {
1563 0 : if( FD_UNLIKELY( !is_commission_update_allowed( clock->slot, epoch_schedule ) ) ) {
1564 0 : ctx->txn_ctx->custom_err = FD_VOTE_ERR_COMMISSION_UPDATE_TOO_LATE;
1565 0 : return FD_EXECUTOR_INSTR_ERR_CUSTOM_ERR;
1566 0 : }
1567 0 : }
1568 :
1569 : // https://github.com/anza-xyz/agave/blob/v2.0.1/programs/vote/src/vote_state/mod.rs#L949
1570 0 : if( !vote_state ) {
1571 0 : vote_state_versioned = get_state( vote_account->acct, ctx->txn_ctx->spad, &rc );
1572 0 : if( FD_UNLIKELY( rc ) ) return rc;
1573 0 : convert_to_current( vote_state_versioned, ctx->txn_ctx->spad );
1574 0 : vote_state = &vote_state_versioned->inner.current;
1575 0 : }
1576 :
1577 : // https://github.com/anza-xyz/agave/blob/v2.0.1/programs/vote/src/vote_state/mod.rs#L957
1578 0 : rc = verify_authorized_signer( &vote_state->authorized_withdrawer, signers );
1579 0 : if( FD_UNLIKELY( rc ) ) return rc;
1580 :
1581 : // https://github.com/anza-xyz/agave/blob/v2.0.1/programs/vote/src/vote_state/mod.rs#L959
1582 0 : vote_state->commission = commission;
1583 :
1584 : // https://github.com/anza-xyz/agave/blob/v2.0.1/programs/vote/src/vote_state/mod.rs#L961
1585 0 : return set_vote_account_state( vote_account, vote_state, ctx );
1586 0 : }
1587 :
1588 : // https://github.com/anza-xyz/agave/blob/v2.0.1/programs/vote/src/vote_state/mod.rs#L997
1589 : static int
1590 : withdraw( fd_exec_instr_ctx_t const * ctx,
1591 : fd_borrowed_account_t * vote_account,
1592 : ulong lamports,
1593 : ushort to_account_index,
1594 : fd_pubkey_t const * signers[static FD_TXN_SIG_MAX],
1595 : fd_rent_t const * rent_sysvar,
1596 0 : fd_sol_sysvar_clock_t const * clock ) {
1597 0 : int rc = 0;
1598 :
1599 : // https://github.com/anza-xyz/agave/blob/v2.0.1/programs/vote/src/vote_state/mod.rs#L1010
1600 0 : fd_vote_state_versioned_t * vote_state_versioned = get_state( vote_account->acct,
1601 0 : ctx->txn_ctx->spad,
1602 0 : &rc );
1603 0 : if( FD_UNLIKELY( rc ) ) return rc;
1604 0 : convert_to_current( vote_state_versioned, ctx->txn_ctx->spad );
1605 0 : fd_vote_state_t * vote_state = &vote_state_versioned->inner.current;
1606 :
1607 : // https://github.com/anza-xyz/agave/blob/v2.0.1/programs/vote/src/vote_state/mod.rs#L1014
1608 0 : rc = verify_authorized_signer( &vote_state->authorized_withdrawer, signers );
1609 0 : if( FD_UNLIKELY( rc ) ) return rc;
1610 :
1611 : // https://github.com/anza-xyz/agave/blob/v2.0.1/programs/vote/src/vote_state/mod.rs#L1016
1612 0 : if( FD_UNLIKELY( lamports > fd_borrowed_account_get_lamports( vote_account ) ) )
1613 0 : return FD_EXECUTOR_INSTR_ERR_INSUFFICIENT_FUNDS;
1614 0 : ulong remaining_balance = fd_borrowed_account_get_lamports( vote_account ) - lamports;
1615 :
1616 : // https://github.com/anza-xyz/agave/blob/v2.0.1/programs/vote/src/vote_state/mod.rs#L1021
1617 0 : if( FD_UNLIKELY( remaining_balance == 0 ) ) {
1618 : // https://github.com/anza-xyz/agave/blob/v2.0.1/programs/vote/src/vote_state/mod.rs#L1014
1619 0 : int reject_active_vote_account_close = 0;
1620 :
1621 0 : ulong last_epoch_with_credits;
1622 0 : if( FD_LIKELY( !deq_fd_vote_epoch_credits_t_empty( vote_state->epoch_credits ) ) ) {
1623 0 : last_epoch_with_credits =
1624 0 : deq_fd_vote_epoch_credits_t_peek_tail_const( vote_state->epoch_credits )->epoch;
1625 0 : ulong current_epoch = clock->epoch;
1626 0 : reject_active_vote_account_close =
1627 0 : fd_ulong_sat_sub( current_epoch, last_epoch_with_credits ) < 2;
1628 0 : }
1629 :
1630 : // https://github.com/anza-xyz/agave/blob/v2.0.1/programs/vote/src/vote_state/mod.rs#L1034
1631 0 : if( FD_UNLIKELY( reject_active_vote_account_close ) ) {
1632 : // https://github.com/anza-xyz/agave/blob/v2.0.1/programs/vote/src/vote_state/mod.rs#L1036
1633 0 : ctx->txn_ctx->custom_err = FD_VOTE_ERR_ACTIVE_VOTE_ACCOUNT_CLOSE;
1634 0 : return FD_EXECUTOR_INSTR_ERR_CUSTOM_ERR;
1635 0 : } else {
1636 : // https://github.com/anza-xyz/agave/blob/v2.0.1/programs/vote/src/vote_state/mod.rs#L1040
1637 0 : fd_vote_state_versioned_t vote_state_versions;
1638 0 : fd_vote_state_versioned_new_disc( &vote_state_versions,
1639 0 : fd_vote_state_versioned_enum_current );
1640 0 : vote_state_versions.inner.current.prior_voters.idx = 31;
1641 0 : vote_state_versions.inner.current.prior_voters.is_empty = 1;
1642 0 : fd_vote_state_t * default_vote_state = &vote_state_versions.inner.current;
1643 0 : rc = 0;
1644 0 : rc = set_vote_account_state( vote_account, default_vote_state, ctx );
1645 0 : if( FD_UNLIKELY( rc != 0 ) ) return rc;
1646 0 : }
1647 0 : } else {
1648 : // https://github.com/anza-xyz/agave/blob/v2.0.1/programs/vote/src/vote_state/mod.rs#L1043
1649 0 : ulong min_rent_exempt_balance =
1650 0 : fd_rent_exempt_minimum_balance( rent_sysvar, fd_borrowed_account_get_data_len( vote_account ) );
1651 0 : if( remaining_balance < min_rent_exempt_balance ) {
1652 0 : return FD_EXECUTOR_INSTR_ERR_INSUFFICIENT_FUNDS;
1653 0 : }
1654 0 : }
1655 :
1656 : // https://github.com/anza-xyz/agave/blob/v2.0.1/programs/vote/src/vote_state/mod.rs#L1049
1657 0 : rc = fd_borrowed_account_checked_sub_lamports( vote_account, lamports);
1658 0 : if( FD_UNLIKELY( rc ) ) return rc;
1659 :
1660 : /* https://github.com/anza-xyz/agave/blob/v2.1.14/programs/vote/src/vote_state/mod.rs#L1019 */
1661 0 : fd_borrowed_account_drop( vote_account );
1662 :
1663 : /* https://github.com/anza-xyz/agave/blob/v2.1.14/programs/vote/src/vote_state/mod.rs#L1020-L1021 */
1664 0 : fd_guarded_borrowed_account_t to;
1665 0 : FD_TRY_BORROW_INSTR_ACCOUNT_DEFAULT_ERR_CHECK( ctx, to_account_index, &to );
1666 :
1667 : // https://github.com/anza-xyz/agave/blob/v2.0.1/programs/vote/src/vote_state/mod.rs#L1053
1668 0 : rc = fd_borrowed_account_checked_add_lamports( &to, lamports);
1669 0 : if( FD_UNLIKELY( rc ) ) return rc;
1670 :
1671 0 : return 0;
1672 0 : }
1673 :
1674 : // https://github.com/anza-xyz/agave/blob/v2.0.1/programs/vote/src/vote_state/mod.rs#L760
1675 : static int
1676 : process_vote_unfiltered( fd_vote_state_t * vote_state,
1677 : ulong * vote_slots,
1678 : fd_vote_t const * vote,
1679 : fd_slot_hash_t const * slot_hashes, /* deque */
1680 : ulong epoch,
1681 : ulong current_slot,
1682 0 : fd_exec_instr_ctx_t const * ctx ) {
1683 0 : int rc;
1684 : // https://github.com/anza-xyz/agave/blob/v2.0.1/programs/vote/src/vote_state/mod.rs#L770
1685 0 : rc = check_slots_are_valid( vote_state, vote_slots, &vote->hash, slot_hashes, ctx );
1686 0 : if( FD_UNLIKELY( rc ) ) return rc;
1687 0 : for( deq_ulong_iter_t iter = deq_ulong_iter_init( vote_slots );
1688 0 : !deq_ulong_iter_done( vote_slots, iter );
1689 0 : iter = deq_ulong_iter_next( vote_slots, iter ) ) {
1690 0 : ulong * ele = deq_ulong_iter_ele( vote_slots, iter );
1691 : // https://github.com/anza-xyz/agave/blob/v2.0.1/programs/vote/src/vote_state/mod.rs#L772
1692 0 : process_next_vote_slot( vote_state, *ele, epoch, current_slot );
1693 0 : }
1694 0 : return 0;
1695 0 : }
1696 :
1697 : // https://github.com/anza-xyz/agave/blob/v2.0.1/programs/vote/src/vote_state/mod.rs#L783
1698 : static int
1699 : process_vote( fd_vote_state_t * vote_state,
1700 : fd_vote_t const * vote,
1701 : fd_slot_hash_t const * slot_hashes, /* deque */
1702 : ulong epoch,
1703 : ulong current_slot,
1704 0 : fd_exec_instr_ctx_t const * ctx ) {
1705 : // https://github.com/anza-xyz/agave/blob/v2.0.1/programs/vote/src/vote_state/mod.rs#L792
1706 0 : if( FD_UNLIKELY( deq_ulong_empty( vote->slots ) ) ) {
1707 0 : ctx->txn_ctx->custom_err = FD_VOTE_ERR_EMPTY_SLOTS;
1708 0 : return FD_EXECUTOR_INSTR_ERR_CUSTOM_ERR;
1709 0 : }
1710 :
1711 : // https://github.com/anza-xyz/agave/blob/v2.0.1/programs/vote/src/vote_state/mod.rs#L795
1712 0 : ulong earliest_slot_in_history = 0;
1713 0 : if( FD_UNLIKELY( !deq_fd_slot_hash_t_empty( slot_hashes ) ) ) {
1714 0 : earliest_slot_in_history = deq_fd_slot_hash_t_peek_tail_const( slot_hashes )->slot;
1715 0 : }
1716 :
1717 0 : ulong vote_slots_cnt = deq_ulong_cnt( vote->slots );
1718 0 : uchar * vote_slots_mem = fd_spad_alloc( ctx->txn_ctx->spad, deq_ulong_align(), deq_ulong_footprint( vote_slots_cnt ) );
1719 : // https://github.com/anza-xyz/agave/blob/v2.0.1/programs/vote/src/vote_state/mod.rs#L796
1720 0 : ulong * vote_slots = deq_ulong_join( deq_ulong_new( vote_slots_mem, vote_slots_cnt ) );
1721 0 : for( deq_ulong_iter_t iter = deq_ulong_iter_init( vote->slots );
1722 0 : !deq_ulong_iter_done( vote->slots, iter );
1723 0 : iter = deq_ulong_iter_next( vote->slots, iter ) ) {
1724 0 : ulong * ele = deq_ulong_iter_ele( vote->slots, iter );
1725 0 : if( FD_UNLIKELY( *ele >= earliest_slot_in_history ) ) {
1726 0 : vote_slots = deq_ulong_push_tail_wrap( vote_slots, *ele );
1727 0 : }
1728 0 : }
1729 :
1730 : // https://github.com/anza-xyz/agave/blob/v2.0.1/programs/vote/src/vote_state/mod.rs#L802
1731 0 : if( FD_UNLIKELY( deq_ulong_cnt( vote_slots ) == 0 ) ) {
1732 0 : ctx->txn_ctx->custom_err = FD_VOTE_ERR_VOTES_TOO_OLD_ALL_FILTERED;
1733 0 : return FD_EXECUTOR_INSTR_ERR_CUSTOM_ERR;
1734 0 : }
1735 :
1736 : // https://github.com/anza-xyz/agave/blob/v2.0.1/programs/vote/src/vote_state/mod.rs#L805
1737 0 : return process_vote_unfiltered(
1738 0 : vote_state, vote_slots, vote, slot_hashes, epoch, current_slot, ctx );
1739 0 : }
1740 :
1741 : // https://github.com/anza-xyz/agave/blob/v2.0.1/programs/vote/src/vote_state/mod.rs#L1060
1742 : static int
1743 : initialize_account( fd_borrowed_account_t * vote_account,
1744 : fd_vote_init_t * vote_init,
1745 : fd_pubkey_t const * signers[static FD_TXN_SIG_MAX],
1746 : fd_sol_sysvar_clock_t const * clock,
1747 0 : fd_exec_instr_ctx_t const * ctx /* feature_set */ ) {
1748 0 : int rc;
1749 :
1750 : // https://github.com/anza-xyz/agave/blob/v2.0.1/programs/vote/src/vote_state/mod.rs#L1067
1751 0 : ulong data_len = fd_borrowed_account_get_data_len( vote_account );
1752 0 : if( FD_UNLIKELY( data_len != size_of_versioned( 1 ) ) ) {
1753 0 : return FD_EXECUTOR_INSTR_ERR_INVALID_ACC_DATA;
1754 0 : }
1755 :
1756 : // https://github.com/anza-xyz/agave/blob/v2.0.1/programs/vote/src/vote_state/mod.rs#L1074
1757 0 : fd_vote_state_versioned_t * versioned = get_state( vote_account->acct,
1758 0 : ctx->txn_ctx->spad,
1759 0 : &rc );
1760 0 : if( FD_UNLIKELY( rc ) ) return rc;
1761 :
1762 : // https://github.com/anza-xyz/agave/blob/v2.0.1/programs/vote/src/vote_state/mod.rs#L1076
1763 0 : if( FD_UNLIKELY( !is_uninitialized( versioned ) ) ) {
1764 0 : return FD_EXECUTOR_INSTR_ERR_ACC_ALREADY_INITIALIZED;
1765 0 : }
1766 :
1767 : // https://github.com/anza-xyz/agave/blob/v2.0.1/programs/vote/src/vote_state/mod.rs#L1081
1768 0 : rc = verify_authorized_signer( &vote_init->node_pubkey, signers );
1769 0 : if( FD_UNLIKELY( rc ) ) {
1770 0 : return rc;
1771 0 : }
1772 :
1773 : /*
1774 : * N.B. Technically we should destroy() to release memory before
1775 : * newing, otherwise the pointers are wiped and memory is leaked.
1776 : * We are probably fine for now since we are bump allocating
1777 : * everything and the enclosing frame will free everything when
1778 : * popped.
1779 : */
1780 : // reset the object
1781 0 : fd_vote_state_versioned_new( versioned );
1782 :
1783 : // https://github.com/anza-xyz/agave/blob/v2.0.1/programs/vote/src/vote_state/mod.rs#L1083
1784 0 : vote_state_new( vote_init, clock, ctx->txn_ctx->spad, &versioned->inner.current );
1785 0 : return set_vote_account_state( vote_account, &versioned->inner.current, ctx );
1786 0 : }
1787 :
1788 : // https://github.com/anza-xyz/agave/blob/v2.0.1/programs/vote/src/vote_state/mod.rs#L1086
1789 : static int
1790 : verify_and_get_vote_state( fd_borrowed_account_t * vote_account,
1791 : fd_sol_sysvar_clock_t const * clock,
1792 : fd_pubkey_t const * signers[FD_TXN_SIG_MAX],
1793 : fd_vote_state_t * vote_state /* out */,
1794 0 : fd_exec_instr_ctx_t const * ctx /* spad */ ) {
1795 0 : int rc = 0;
1796 :
1797 : // https://github.com/anza-xyz/agave/blob/v2.0.1/programs/vote/src/vote_state/mod.rs#L1091
1798 0 : fd_vote_state_versioned_t * versioned = get_state( vote_account->acct,
1799 0 : ctx->txn_ctx->spad,
1800 0 : &rc );
1801 0 : if( FD_UNLIKELY( rc ) ) return rc;
1802 :
1803 : // https://github.com/anza-xyz/agave/blob/v2.0.1/programs/vote/src/vote_state/mod.rs#L1093
1804 0 : if( FD_UNLIKELY( is_uninitialized( versioned ) ) )
1805 0 : return FD_EXECUTOR_INSTR_ERR_UNINITIALIZED_ACCOUNT;
1806 :
1807 : // https://github.com/anza-xyz/agave/blob/v2.0.1/programs/vote/src/vote_state/mod.rs#L1097
1808 0 : convert_to_current( versioned, ctx->txn_ctx->spad );
1809 0 : *vote_state = versioned->inner.current;
1810 :
1811 : // https://github.com/anza-xyz/agave/blob/v2.0.1/programs/vote/src/vote_state/mod.rs#L1098
1812 0 : fd_pubkey_t * authorized_voter = NULL;
1813 0 : rc = get_and_update_authorized_voter( vote_state, clock->epoch, &authorized_voter, ctx );
1814 0 : if( FD_UNLIKELY( rc ) ) return rc;
1815 :
1816 : // https://github.com/anza-xyz/agave/blob/v2.0.1/programs/vote/src/vote_state/mod.rs#L1099
1817 0 : rc = verify_authorized_signer( authorized_voter, signers );
1818 0 : if( FD_UNLIKELY( rc ) ) return rc;
1819 :
1820 0 : return FD_EXECUTOR_INSTR_SUCCESS;
1821 0 : }
1822 :
1823 : // https://github.com/anza-xyz/agave/blob/v2.0.1/programs/vote/src/vote_state/mod.rs#L1104
1824 : static int
1825 : process_vote_with_account( fd_borrowed_account_t * vote_account,
1826 : fd_slot_hash_t const * slot_hashes, /* deque */
1827 : fd_sol_sysvar_clock_t const * clock,
1828 : fd_vote_t * vote,
1829 : fd_pubkey_t const * signers[static FD_TXN_SIG_MAX],
1830 0 : fd_exec_instr_ctx_t const * ctx ) {
1831 :
1832 0 : int rc;
1833 0 : fd_vote_state_t vote_state;
1834 : // https://github.com/anza-xyz/agave/blob/v2.0.1/programs/vote/src/vote_state/mod.rs#L1112
1835 0 : rc = verify_and_get_vote_state( vote_account, clock, signers, &vote_state, ctx );
1836 0 : if( FD_UNLIKELY( rc ) ) return rc;
1837 :
1838 :
1839 : // https://github.com/anza-xyz/agave/blob/v2.0.1/programs/vote/src/vote_state/mod.rs#L1117
1840 0 : rc = process_vote( &vote_state, vote, slot_hashes, clock->epoch, clock->slot, ctx );
1841 0 : if( FD_UNLIKELY( rc ) ) return rc;
1842 :
1843 : // https://github.com/anza-xyz/agave/blob/v2.0.1/programs/vote/src/vote_state/mod.rs#L1126
1844 0 : if( FD_LIKELY( vote->timestamp ) ) {
1845 0 : if( FD_UNLIKELY( deq_ulong_cnt( vote->slots ) == 0 ) ) {
1846 0 : ctx->txn_ctx->custom_err = FD_VOTE_ERR_EMPTY_SLOTS;
1847 0 : return FD_EXECUTOR_INSTR_ERR_CUSTOM_ERR;
1848 0 : }
1849 :
1850 0 : ulong max = deq_ulong_peek_head( vote->slots ) ? *deq_ulong_peek_head( vote->slots ) : 0UL;
1851 : // https://github.com/anza-xyz/agave/blob/v2.0.1/programs/vote/src/vote_state/mod.rs#L1127
1852 0 : for( deq_ulong_iter_t iter = deq_ulong_iter_init( vote->slots );
1853 0 : !deq_ulong_iter_done( vote->slots, iter );
1854 0 : iter = deq_ulong_iter_next( vote->slots, iter ) ) {
1855 0 : ulong * ele = deq_ulong_iter_ele( vote->slots, iter );
1856 0 : max = fd_ulong_max( max, *ele );
1857 0 : }
1858 0 : if( FD_UNLIKELY( !max ) ) {
1859 0 : ctx->txn_ctx->custom_err = FD_VOTE_ERR_EMPTY_SLOTS;
1860 0 : return FD_EXECUTOR_INSTR_ERR_CUSTOM_ERR;
1861 0 : }
1862 : // https://github.com/anza-xyz/agave/blob/v2.0.1/programs/vote/src/vote_state/mod.rs#L1131
1863 0 : rc = process_timestamp( &vote_state, max, *vote->timestamp, ctx );
1864 0 : if( FD_UNLIKELY( rc ) ) return rc;
1865 0 : }
1866 :
1867 : // https://github.com/anza-xyz/agave/blob/v2.0.1/programs/vote/src/vote_state/mod.rs#L1133
1868 0 : return set_vote_account_state( vote_account, &vote_state, ctx );
1869 0 : }
1870 :
1871 : // https://github.com/anza-xyz/agave/blob/v2.0.1/programs/vote/src/vote_state/mod.rs#L1156
1872 : static int
1873 : do_process_vote_state_update( fd_vote_state_t * vote_state,
1874 : fd_slot_hash_t const * slot_hashes, /* deque */
1875 : ulong epoch,
1876 : ulong slot,
1877 : fd_vote_state_update_t * vote_state_update,
1878 0 : fd_exec_instr_ctx_t const * ctx /* feature_set */ ) {
1879 0 : int rc;
1880 :
1881 : // https://github.com/anza-xyz/agave/blob/v2.0.1/programs/vote/src/vote_state/mod.rs#L1164
1882 0 : rc = check_and_filter_proposed_vote_state(
1883 0 : vote_state,
1884 0 : vote_state_update->lockouts, &vote_state_update->has_root, &vote_state_update->root, &vote_state_update->hash,
1885 0 : slot_hashes, ctx );
1886 0 : if( FD_UNLIKELY( rc ) ) return rc;
1887 :
1888 : // https://github.com/anza-xyz/agave/blob/v2.0.1/programs/vote/src/vote_state/mod.rs#L1177
1889 0 : uchar * deque_mem = fd_spad_alloc( ctx->txn_ctx->spad,
1890 0 : deq_fd_landed_vote_t_align(),
1891 0 : deq_fd_landed_vote_t_footprint( deq_fd_vote_lockout_t_cnt( vote_state_update->lockouts ) ) );
1892 :
1893 0 : fd_landed_vote_t * landed_votes = deq_fd_landed_vote_t_join( deq_fd_landed_vote_t_new( deque_mem, deq_fd_vote_lockout_t_cnt( vote_state_update->lockouts ) ) );
1894 0 : for( deq_fd_vote_lockout_t_iter_t iter =
1895 0 : deq_fd_vote_lockout_t_iter_init( vote_state_update->lockouts );
1896 0 : !deq_fd_vote_lockout_t_iter_done( vote_state_update->lockouts, iter );
1897 0 : iter = deq_fd_vote_lockout_t_iter_next( vote_state_update->lockouts, iter ) ) {
1898 0 : fd_vote_lockout_t * lockout =
1899 0 : deq_fd_vote_lockout_t_iter_ele( vote_state_update->lockouts, iter );
1900 0 : deq_fd_landed_vote_t_push_tail_wrap( landed_votes,
1901 0 : ( fd_landed_vote_t ){ .latency = 0, .lockout = *lockout } );
1902 0 : }
1903 :
1904 : // https://github.com/anza-xyz/agave/blob/v2.0.1/programs/vote/src/vote_state/mod.rs#L1171
1905 0 : return process_new_vote_state( vote_state,
1906 0 : landed_votes,
1907 0 : vote_state_update->has_root,
1908 0 : vote_state_update->root,
1909 0 : vote_state_update->has_timestamp,
1910 0 : vote_state_update->timestamp,
1911 0 : epoch,
1912 0 : slot,
1913 0 : ctx );
1914 0 : }
1915 :
1916 : // ??
1917 : ulong
1918 0 : fd_query_pubkey_stake( fd_pubkey_t const * pubkey, fd_vote_accounts_global_t const * vote_accounts ) {
1919 0 : fd_vote_accounts_pair_global_t_mapnode_t key = { 0 };
1920 0 : key.elem.key = *pubkey;
1921 :
1922 0 : fd_vote_accounts_pair_global_t_mapnode_t * vote_accounts_pool = fd_vote_accounts_vote_accounts_pool_join( vote_accounts );
1923 0 : fd_vote_accounts_pair_global_t_mapnode_t * vote_accounts_root = fd_vote_accounts_vote_accounts_root_join( vote_accounts );
1924 :
1925 0 : if( !vote_accounts_pool && !vote_accounts_root ) {
1926 0 : return 0;
1927 0 : }
1928 :
1929 0 : fd_vote_accounts_pair_global_t_mapnode_t * vote_node = fd_vote_accounts_pair_global_t_map_find(
1930 0 : vote_accounts_pool, vote_accounts_root, &key );
1931 0 : return vote_node ? vote_node->elem.stake : 0;
1932 0 : }
1933 :
1934 : static int
1935 : process_vote_state_update( fd_borrowed_account_t * vote_account,
1936 : fd_slot_hash_t const * slot_hashes,
1937 : fd_sol_sysvar_clock_t const * clock,
1938 : fd_vote_state_update_t * vote_state_update,
1939 : fd_pubkey_t const * signers[static FD_TXN_SIG_MAX],
1940 0 : fd_exec_instr_ctx_t const * ctx /* feature_set */ ) {
1941 0 : int rc;
1942 :
1943 : // tie in code for fd_bank_hash_cmp that helps us detect if we have forked from the cluster.
1944 : //
1945 : // There is no corresponding code in anza
1946 :
1947 0 : fd_stakes_global_t const * stakes = fd_bank_stakes_locking_query( ctx->txn_ctx->bank );
1948 :
1949 0 : if( !deq_fd_vote_lockout_t_empty( vote_state_update->lockouts ) ) {
1950 0 : fd_vote_lockout_t * lockout = deq_fd_vote_lockout_t_peek_tail( vote_state_update->lockouts );
1951 0 : fd_bank_hash_cmp_t * bank_hash_cmp = ctx->txn_ctx->bank_hash_cmp;
1952 0 : if( FD_LIKELY( lockout && bank_hash_cmp ) ) {
1953 0 : fd_bank_hash_cmp_lock( bank_hash_cmp );
1954 0 : fd_bank_hash_cmp_insert(
1955 0 : bank_hash_cmp,
1956 0 : lockout->slot,
1957 0 : &vote_state_update->hash,
1958 0 : 0,
1959 0 : fd_query_pubkey_stake( vote_account->acct->pubkey,
1960 0 : &stakes->vote_accounts ) );
1961 0 : fd_bank_hash_cmp_unlock( bank_hash_cmp );
1962 0 : }
1963 0 : }
1964 :
1965 0 : fd_bank_stakes_end_locking_query( ctx->txn_ctx->bank );
1966 :
1967 0 : fd_vote_state_t vote_state;
1968 : // https://github.com/anza-xyz/agave/blob/v2.0.1/programs/vote/src/vote_state/mod.rs#L1144
1969 0 : rc = verify_and_get_vote_state( vote_account, clock, signers, &vote_state, ctx );
1970 0 : if( FD_UNLIKELY( rc ) ) return rc;
1971 :
1972 :
1973 : // https://github.com/anza-xyz/agave/blob/v2.0.1/programs/vote/src/vote_state/mod.rs#L1145
1974 0 : rc = do_process_vote_state_update(
1975 0 : &vote_state, slot_hashes, clock->epoch, clock->slot, vote_state_update, ctx );
1976 0 : if( FD_UNLIKELY( rc ) ) {
1977 0 : return rc;
1978 0 : }
1979 :
1980 : // https://github.com/anza-xyz/agave/blob/v2.0.1/programs/vote/src/vote_state/mod.rs#L1153
1981 0 : rc = set_vote_account_state( vote_account, &vote_state, ctx );
1982 :
1983 0 : return rc;
1984 0 : }
1985 :
1986 : // https://github.com/anza-xyz/agave/blob/v2.0.1/programs/vote/src/vote_state/mod.rs#L1206
1987 : static int
1988 : do_process_tower_sync( fd_vote_state_t * vote_state,
1989 : fd_slot_hash_t const * slot_hashes, /* deque */
1990 : ulong epoch,
1991 : ulong slot,
1992 : fd_tower_sync_t * tower_sync,
1993 0 : fd_exec_instr_ctx_t const * ctx /* feature_set */ ) {
1994 :
1995 0 : do {
1996 : // https://github.com/anza-xyz/agave/blob/v2.0.1/programs/vote/src/vote_state/mod.rs#L1214
1997 0 : int err = check_and_filter_proposed_vote_state(
1998 0 : vote_state,
1999 0 : tower_sync->lockouts, &tower_sync->has_root, &tower_sync->root, &tower_sync->hash,
2000 0 : slot_hashes, ctx );
2001 0 : if( FD_UNLIKELY( err ) ) return err;
2002 0 : } while(0);
2003 :
2004 0 : int err;
2005 0 : FD_SPAD_FRAME_BEGIN( ctx->txn_ctx->spad ) {
2006 : // https://github.com/anza-xyz/agave/blob/v2.0.1/programs/vote/src/vote_state/mod.rs#L1221
2007 0 : err = process_new_vote_state(
2008 0 : vote_state,
2009 0 : landed_votes_from_lockouts( tower_sync->lockouts, ctx->txn_ctx->spad ),
2010 0 : tower_sync->has_root,
2011 0 : tower_sync->root,
2012 0 : tower_sync->has_timestamp,
2013 0 : tower_sync->timestamp,
2014 0 : epoch,
2015 0 : slot,
2016 0 : ctx );
2017 0 : } FD_SPAD_FRAME_END;
2018 :
2019 0 : return err;
2020 0 : }
2021 :
2022 : // https://github.com/anza-xyz/agave/blob/v2.0.1/programs/vote/src/vote_state/mod.rs#L1186
2023 : static int
2024 : process_tower_sync( fd_borrowed_account_t * vote_account,
2025 : fd_slot_hash_t const * slot_hashes, /* deque */
2026 : fd_sol_sysvar_clock_t const * clock,
2027 : fd_tower_sync_t * tower_sync,
2028 : fd_pubkey_t const * signers[static FD_TXN_SIG_MAX],
2029 0 : fd_exec_instr_ctx_t const * ctx /* feature_set */ ) {
2030 :
2031 0 : if( !deq_fd_vote_lockout_t_empty( tower_sync->lockouts ) ) {
2032 0 : fd_vote_lockout_t * lockout = deq_fd_vote_lockout_t_peek_tail( tower_sync->lockouts );
2033 0 : fd_bank_hash_cmp_t * bank_hash_cmp = ctx->txn_ctx->bank_hash_cmp;
2034 0 : fd_stakes_global_t const * stakes = fd_bank_stakes_locking_query( ctx->txn_ctx->bank );
2035 0 : if( FD_LIKELY( lockout && bank_hash_cmp ) ) {
2036 0 : fd_bank_hash_cmp_lock( bank_hash_cmp );
2037 0 : fd_bank_hash_cmp_insert(
2038 0 : bank_hash_cmp,
2039 0 : lockout->slot,
2040 0 : &tower_sync->hash,
2041 0 : 0,
2042 0 : fd_query_pubkey_stake( vote_account->acct->pubkey,
2043 0 : &stakes->vote_accounts ) );
2044 0 : fd_bank_hash_cmp_unlock( bank_hash_cmp );
2045 0 : }
2046 0 : fd_bank_stakes_end_locking_query( ctx->txn_ctx->bank );
2047 0 : }
2048 :
2049 : // https://github.com/anza-xyz/agave/blob/v2.0.1/programs/vote/src/vote_state/mod.rs#L1194
2050 0 : fd_vote_state_t vote_state;
2051 0 : do {
2052 0 : int err = verify_and_get_vote_state( vote_account, clock, signers, &vote_state, ctx );
2053 0 : if( FD_UNLIKELY( err ) ) return err;
2054 0 : } while(0);
2055 :
2056 : // https://github.com/anza-xyz/agave/blob/v2.0.1/programs/vote/src/vote_state/mod.rs#L1195
2057 0 : do {
2058 0 : int err = do_process_tower_sync( &vote_state, slot_hashes, clock->epoch, clock->slot, tower_sync, ctx );
2059 0 : if( FD_UNLIKELY( err ) ) return err;
2060 0 : } while(0);
2061 :
2062 : // https://github.com/anza-xyz/agave/blob/v2.0.1/programs/vote/src/vote_state/mod.rs#L1203
2063 0 : return set_vote_account_state( vote_account, &vote_state, ctx );
2064 0 : }
2065 :
2066 : /**********************************************************************/
2067 : /* FD-only encoders / decoders (doesn't map directly to Labs impl) */
2068 : /**********************************************************************/
2069 :
2070 : int
2071 : fd_vote_decode_compact_update( fd_compact_vote_state_update_t * compact_update,
2072 : fd_vote_state_update_t * vote_update,
2073 0 : fd_exec_instr_ctx_t const * ctx /* spad */ ) {
2074 : // Taken from:
2075 : // https://github.com/anza-xyz/agave/blob/v2.0.1/sdk/program/src/vote/state/mod.rs#L954
2076 0 : if( compact_update->root != ULONG_MAX ) {
2077 0 : vote_update->has_root = 1;
2078 0 : vote_update->root = compact_update->root;
2079 0 : } else {
2080 0 : vote_update->has_root = 0;
2081 0 : vote_update->root = ULONG_MAX;
2082 0 : }
2083 :
2084 0 : ulong lockouts_len = compact_update->lockouts_len;
2085 0 : ulong lockouts_max = fd_ulong_max( lockouts_len, MAX_LOCKOUT_HISTORY );
2086 :
2087 0 : uchar * deque_mem = fd_spad_alloc( ctx->txn_ctx->spad,
2088 0 : deq_fd_vote_lockout_t_align(),
2089 0 : deq_fd_vote_lockout_t_footprint( lockouts_max ) );
2090 0 : vote_update->lockouts = deq_fd_vote_lockout_t_join( deq_fd_vote_lockout_t_new( deque_mem, lockouts_max ) );
2091 0 : ulong slot = fd_ulong_if( vote_update->has_root, vote_update->root, 0 );
2092 :
2093 0 : for( ulong i=0; i < lockouts_len; ++i ) {
2094 0 : fd_vote_lockout_t * elem = deq_fd_vote_lockout_t_push_tail_nocopy( vote_update->lockouts );
2095 0 : fd_vote_lockout_new( elem );
2096 :
2097 0 : fd_lockout_offset_t * lock_offset = &compact_update->lockouts[i];
2098 :
2099 0 : ulong next_slot;
2100 0 : if( FD_UNLIKELY( __builtin_uaddl_overflow( slot, lock_offset->offset, &next_slot ) ) )
2101 0 : return 0;
2102 :
2103 0 : elem->slot = slot = next_slot;
2104 0 : elem->confirmation_count = (uint)lock_offset->confirmation_count;
2105 0 : }
2106 :
2107 0 : vote_update->hash = compact_update->hash;
2108 0 : vote_update->has_timestamp = compact_update->has_timestamp;
2109 0 : vote_update->timestamp = compact_update->timestamp;
2110 :
2111 0 : return 1;
2112 0 : }
2113 :
2114 : void
2115 : fd_vote_record_timestamp_vote_with_slot( fd_pubkey_t const * vote_acc,
2116 : long timestamp,
2117 : ulong slot,
2118 0 : fd_bank_t * bank ) {
2119 :
2120 0 : fd_clock_timestamp_votes_global_t * clock_timestamp_votes = fd_bank_clock_timestamp_votes_locking_modify( bank );
2121 :
2122 0 : fd_clock_timestamp_vote_t_mapnode_t * pool = fd_clock_timestamp_votes_votes_pool_join( clock_timestamp_votes );
2123 0 : fd_clock_timestamp_vote_t_mapnode_t * root = fd_clock_timestamp_votes_votes_root_join( clock_timestamp_votes );
2124 :
2125 0 : if( FD_UNLIKELY( !pool ) ) {
2126 0 : FD_LOG_ERR(( "Timestamp vote account pool not allocated" ));
2127 0 : }
2128 :
2129 0 : fd_clock_timestamp_vote_t timestamp_vote = {
2130 0 : .pubkey = *vote_acc,
2131 0 : .timestamp = (long)timestamp,
2132 0 : .slot = slot,
2133 0 : };
2134 0 : fd_clock_timestamp_vote_t_mapnode_t key = { .elem = timestamp_vote };
2135 0 : fd_clock_timestamp_vote_t_mapnode_t * node =
2136 0 : fd_clock_timestamp_vote_t_map_find( pool, root, &key );
2137 0 : if( NULL != node ) {
2138 0 : node->elem = timestamp_vote;
2139 0 : } else {
2140 0 : node = fd_clock_timestamp_vote_t_map_acquire( pool );
2141 0 : FD_TEST( node != NULL );
2142 0 : node->elem = timestamp_vote;
2143 0 : fd_clock_timestamp_vote_t_map_insert( pool, &root, node );
2144 0 : }
2145 :
2146 0 : fd_clock_timestamp_votes_votes_pool_update( clock_timestamp_votes, pool );
2147 0 : fd_clock_timestamp_votes_votes_root_update( clock_timestamp_votes, root );
2148 :
2149 0 : fd_bank_clock_timestamp_votes_end_locking_modify( bank );
2150 0 : }
2151 :
2152 : // https://github.com/anza-xyz/agave/blob/v2.0.1/sdk/program/src/vote/state/mod.rs#L751
2153 : int
2154 : fd_vote_acc_credits( fd_exec_instr_ctx_t const * ctx,
2155 : fd_account_meta_t const * vote_acc_meta,
2156 : uchar const * vote_acc_data,
2157 0 : ulong * result ) {
2158 0 : int rc;
2159 :
2160 0 : fd_sol_sysvar_clock_t clock_;
2161 0 : fd_sol_sysvar_clock_t const * clock = fd_sysvar_cache_clock_read( ctx->sysvar_cache, &clock_ );
2162 0 : if( FD_UNLIKELY( !clock ) ) return FD_EXECUTOR_INSTR_ERR_UNSUPPORTED_SYSVAR;
2163 :
2164 : /* Read vote account */
2165 0 : FD_TXN_ACCOUNT_DECL( vote_account );
2166 0 : fd_txn_account_init_from_meta_and_data_readonly( vote_account, vote_acc_meta, vote_acc_data );
2167 :
2168 0 : rc = 0;
2169 :
2170 0 : fd_vote_state_versioned_t * vote_state_versioned = get_state( vote_account,
2171 0 : ctx->txn_ctx->spad,
2172 0 : &rc );
2173 0 : if( FD_UNLIKELY( rc ) ) return rc;
2174 0 : convert_to_current( vote_state_versioned, ctx->txn_ctx->spad );
2175 0 : fd_vote_state_t * state = &vote_state_versioned->inner.current;
2176 0 : if( deq_fd_vote_epoch_credits_t_empty( state->epoch_credits ) ) {
2177 0 : *result = 0;
2178 0 : } else {
2179 0 : *result = deq_fd_vote_epoch_credits_t_peek_tail_const( state->epoch_credits )->credits;
2180 0 : }
2181 :
2182 0 : return FD_EXECUTOR_INSTR_SUCCESS;
2183 0 : }
2184 :
2185 : /// returns commission split as (voter_portion, staker_portion, was_split) tuple
2186 : ///
2187 : /// if commission calculation is 100% one way or other, indicate with false for was_split
2188 :
2189 : // https://github.com/anza-xyz/agave/blob/v2.0.1/sdk/program/src/vote/state/mod.rs#L543
2190 : void
2191 : fd_vote_commission_split( fd_vote_state_versioned_t * vote_state_versioned,
2192 : ulong on,
2193 0 : fd_commission_split_t * result ) {
2194 0 : uchar commission = (uchar)fd_vote_account_commission( vote_state_versioned );
2195 0 : uint commission_split = fd_uint_min( (uint)commission, 100 );
2196 0 : result->is_split = ( commission_split != 0 && commission_split != 100 );
2197 : // https://github.com/anza-xyz/agave/blob/v2.0.1/sdk/program/src/vote/state/mod.rs#L545
2198 0 : if( commission_split == 0 ) {
2199 0 : result->voter_portion = 0;
2200 0 : result->staker_portion = on;
2201 0 : return;
2202 0 : }
2203 : // https://github.com/anza-xyz/agave/blob/v2.0.1/sdk/program/src/vote/state/mod.rs#L546
2204 0 : if( commission_split == 100 ) {
2205 0 : result->voter_portion = on;
2206 0 : result->staker_portion = 0;
2207 0 : return;
2208 0 : }
2209 : /* Note: order of operations may matter for int division. That's why I didn't make the
2210 : * optimization of getting out the common calculations */
2211 :
2212 : // ... This is copied from the solana comments...
2213 : //
2214 : // Calculate mine and theirs independently and symmetrically instead
2215 : // of using the remainder of the other to treat them strictly
2216 : // equally. This is also to cancel the rewarding if either of the
2217 : // parties should receive only fractional lamports, resulting in not
2218 : // being rewarded at all. Thus, note that we intentionally discard
2219 : // any residual fractional lamports.
2220 :
2221 : // https://github.com/anza-xyz/agave/blob/v2.0.1/sdk/program/src/vote/state/mod.rs#L548
2222 0 : result->voter_portion =
2223 0 : (ulong)( (uint128)on * (uint128)commission_split / (uint128)100 );
2224 0 : result->staker_portion =
2225 0 : (ulong)( (uint128)on * (uint128)( 100 - commission_split ) / (uint128)100 );
2226 0 : }
2227 :
2228 : /**********************************************************************/
2229 : /* mod vote_processor */
2230 : /**********************************************************************/
2231 :
2232 : // https://github.com/anza-xyz/agave/blob/v2.0.1/programs/vote/src/vote_processor.rs#L21
2233 : static int
2234 : process_authorize_with_seed_instruction(
2235 : /* invoke_context */
2236 : fd_exec_instr_ctx_t const * ctx,
2237 : /* transaction_context */
2238 : fd_borrowed_account_t * vote_account,
2239 : fd_pubkey_t const * new_authority,
2240 : fd_vote_authorize_t authorization_type,
2241 : fd_pubkey_t const * current_authority_derived_key_owner,
2242 : uchar const * current_authority_derived_key_seed,
2243 0 : ulong current_authority_derived_key_seed_len ) {
2244 0 : int rc = 0;
2245 :
2246 : // https://github.com/anza-xyz/agave/blob/v2.0.1/programs/vote/src/vote_processor.rs#L31
2247 0 : rc = fd_sysvar_instr_acct_check( ctx, 1, &fd_sysvar_clock_id );
2248 0 : if( FD_UNLIKELY( rc ) ) return rc;
2249 :
2250 0 : fd_sol_sysvar_clock_t clock_;
2251 0 : fd_sol_sysvar_clock_t const * clock = fd_sysvar_cache_clock_read( ctx->sysvar_cache, &clock_ );
2252 0 : if( FD_UNLIKELY( !clock ) ) return FD_EXECUTOR_INSTR_ERR_UNSUPPORTED_SYSVAR;
2253 :
2254 0 : fd_pubkey_t * expected_authority_keys[FD_TXN_SIG_MAX] = { 0 };
2255 0 : fd_pubkey_t single_signer = { 0 };
2256 :
2257 0 : if( ctx->instr->acct_cnt < 3 )
2258 0 : return FD_EXECUTOR_INSTR_ERR_MISSING_ACC;
2259 :
2260 : // https://github.com/anza-xyz/agave/blob/v2.0.1/programs/vote/src/vote_processor.rs#L33
2261 0 : if( fd_instr_acc_is_signer_idx( ctx->instr, 2 ) ) {
2262 :
2263 : // https://github.com/anza-xyz/agave/blob/v2.1.14/programs/vote/src/vote_processor.rs#L34
2264 0 : fd_pubkey_t const * base_pubkey = NULL;
2265 0 : rc = fd_exec_instr_ctx_get_key_of_account_at_index( ctx, 2UL, &base_pubkey );
2266 0 : if( FD_UNLIKELY( rc ) ) return rc;
2267 :
2268 : // https://github.com/anza-xyz/agave/blob/v2.0.1/programs/vote/src/vote_processor.rs#L37
2269 0 : expected_authority_keys[0] = &single_signer;
2270 0 : rc = fd_pubkey_create_with_seed( ctx,
2271 0 : base_pubkey->uc,
2272 0 : (char const *)current_authority_derived_key_seed,
2273 0 : current_authority_derived_key_seed_len,
2274 0 : current_authority_derived_key_owner->uc,
2275 0 : /* insert */ expected_authority_keys[0]->uc );
2276 0 : if( FD_UNLIKELY( rc ) ) return rc;
2277 0 : }
2278 :
2279 : // https://github.com/anza-xyz/agave/blob/v2.0.1/programs/vote/src/vote_processor.rs#L43
2280 0 : return authorize( vote_account,
2281 0 : new_authority,
2282 0 : authorization_type,
2283 0 : (fd_pubkey_t const **)expected_authority_keys,
2284 0 : clock,
2285 0 : ctx );
2286 0 : }
2287 :
2288 : /**********************************************************************/
2289 : /* Entry point for the Vote Program */
2290 : /**********************************************************************/
2291 :
2292 : // https://github.com/anza-xyz/agave/blob/v2.0.1/programs/vote/src/vote_processor.rs#L57
2293 : int
2294 0 : fd_vote_program_execute( fd_exec_instr_ctx_t * ctx ) {
2295 : /* FD-specific init */
2296 0 : int rc = FD_EXECUTOR_INSTR_SUCCESS;
2297 :
2298 : // https://github.com/anza-xyz/agave/blob/v2.0.1/programs/vote/src/vote_processor.rs#L57
2299 0 : FD_EXEC_CU_UPDATE( ctx, DEFAULT_COMPUTE_UNITS );
2300 :
2301 : // https://github.com/anza-xyz/agave/blob/v2.0.1/programs/vote/src/vote_processor.rs#L64
2302 0 : if( FD_UNLIKELY( ctx->instr->acct_cnt < 1 ) ) {
2303 0 : return FD_EXECUTOR_INSTR_ERR_NOT_ENOUGH_ACC_KEYS;
2304 0 : }
2305 :
2306 0 : fd_guarded_borrowed_account_t me;
2307 0 : FD_TRY_BORROW_INSTR_ACCOUNT_DEFAULT_ERR_CHECK( ctx, 0, &me );
2308 :
2309 0 : switch( rc ) {
2310 0 : case FD_ACC_MGR_SUCCESS:
2311 0 : break;
2312 0 : case FD_ACC_MGR_ERR_UNKNOWN_ACCOUNT:
2313 : // https://github.com/anza-xyz/agave/blob/v2.0.1/sdk/src/transaction_context.rs#L637
2314 0 : return FD_EXECUTOR_INSTR_ERR_MISSING_ACC;
2315 0 : default:
2316 : // https://github.com/anza-xyz/agave/blob/v2.0.1/sdk/src/transaction_context.rs#L639
2317 0 : return FD_EXECUTOR_INSTR_ERR_ACC_BORROW_FAILED;
2318 0 : }
2319 :
2320 : // https://github.com/anza-xyz/agave/blob/v2.0.1/programs/vote/src/vote_processor.rs#L65
2321 0 : if( FD_UNLIKELY( 0 != memcmp( fd_borrowed_account_get_owner( &me ),
2322 0 : fd_solana_vote_program_id.key,
2323 0 : sizeof( fd_pubkey_t ) ) ) ) {
2324 : // https://github.com/anza-xyz/agave/blob/v2.0.1/programs/vote/src/vote_processor.rs#L66
2325 0 : return FD_EXECUTOR_INSTR_ERR_INVALID_ACC_OWNER;
2326 0 : }
2327 :
2328 : /* Replicate vote account changes to bank caches after processing the
2329 : transaction's instructions. */
2330 0 : ctx->txn_ctx->dirty_vote_acc = 1;
2331 :
2332 : // https://github.com/anza-xyz/agave/blob/v2.0.1/programs/vote/src/vote_processor.rs#L69
2333 0 : fd_pubkey_t const * signers[FD_TXN_SIG_MAX] = { 0 };
2334 0 : fd_exec_instr_ctx_get_signers( ctx, signers );
2335 :
2336 : // https://github.com/anza-xyz/agave/blob/v2.0.1/programs/vote/src/vote_processor.rs#L70
2337 0 : if( FD_UNLIKELY( ctx->instr->data==NULL ) ) {
2338 0 : return FD_EXECUTOR_INSTR_ERR_INVALID_INSTR_DATA;
2339 0 : }
2340 :
2341 0 : int decode_result;
2342 0 : ulong decoded_sz;
2343 0 : fd_vote_instruction_t * instruction = fd_bincode_decode1_spad(
2344 0 : vote_instruction, ctx->txn_ctx->spad,
2345 0 : ctx->instr->data, ctx->instr->data_sz,
2346 0 : &decode_result,
2347 0 : &decoded_sz );
2348 0 : if( FD_UNLIKELY( decode_result != FD_BINCODE_SUCCESS ) ) {
2349 0 : return FD_EXECUTOR_INSTR_ERR_INVALID_INSTR_DATA;
2350 0 : }
2351 0 : if( FD_UNLIKELY( decoded_sz > FD_TXN_MTU ) ) {
2352 0 : return FD_EXECUTOR_INSTR_ERR_INVALID_INSTR_DATA;
2353 0 : }
2354 :
2355 : /* PLEASE PRESERVE SWITCH-CASE ORDERING TO MIRROR LABS IMPL:
2356 : */
2357 0 : switch( instruction->discriminant ) {
2358 :
2359 : /* InitializeAccount
2360 : *
2361 : * Instruction:
2362 : * https://github.com/anza-xyz/agave/blob/v2.0.1/sdk/program/src/vote/instruction.rs#L32
2363 : *
2364 : * Processor:
2365 : * https://github.com/anza-xyz/agave/blob/v2.0.1/programs/vote/src/vote_processor.rs#L71
2366 : */
2367 0 : case fd_vote_instruction_enum_initialize_account: {
2368 : // https://github.com/anza-xyz/agave/blob/v2.0.1/programs/vote/src/vote_processor.rs#L72
2369 0 : rc = fd_sysvar_instr_acct_check( ctx, 1, &fd_sysvar_rent_id );
2370 0 : if( FD_UNLIKELY( rc ) ) return rc;
2371 0 : fd_rent_t rent_;
2372 0 : fd_rent_t const * rent = fd_sysvar_cache_rent_read( ctx->sysvar_cache, &rent_ );
2373 0 : if( FD_UNLIKELY( !rent ) ) return FD_EXECUTOR_INSTR_ERR_UNSUPPORTED_SYSVAR;
2374 :
2375 0 : if( FD_UNLIKELY( fd_borrowed_account_get_lamports( &me ) <
2376 0 : fd_rent_exempt_minimum_balance( rent, fd_borrowed_account_get_data_len( &me ) ) ) )
2377 0 : return FD_EXECUTOR_INSTR_ERR_INSUFFICIENT_FUNDS;
2378 :
2379 : // https://github.com/anza-xyz/agave/blob/v2.0.1/programs/vote/src/vote_processor.rs#L76
2380 0 : rc = fd_sysvar_instr_acct_check( ctx, 2, &fd_sysvar_clock_id );
2381 0 : if( FD_UNLIKELY( rc ) ) return rc;
2382 0 : fd_sol_sysvar_clock_t clock_;
2383 0 : fd_sol_sysvar_clock_t const * clock = fd_sysvar_cache_clock_read( ctx->sysvar_cache, &clock_ );
2384 0 : if( FD_UNLIKELY( !clock ) ) return FD_EXECUTOR_INSTR_ERR_UNSUPPORTED_SYSVAR;
2385 :
2386 : // https://github.com/anza-xyz/agave/blob/v2.0.1/programs/vote/src/vote_processor.rs#L78
2387 0 : rc = initialize_account( &me,
2388 0 : &instruction->inner.initialize_account,
2389 0 : signers,
2390 0 : clock,
2391 0 : ctx );
2392 :
2393 0 : break;
2394 0 : }
2395 :
2396 : /* Authorize
2397 : *
2398 : * Instruction:
2399 : * https://github.com/anza-xyz/agave/blob/v2.0.1/sdk/program/src/vote/instruction.rs#L40
2400 : *
2401 : * Processor:
2402 : * https://github.com/anza-xyz/agave/blob/v2.0.1/programs/vote/src/vote_processor.rs#L86
2403 : *
2404 : * Notes:
2405 : * - Up to two signers: the vote authority and the authorized withdrawer.
2406 : */
2407 0 : case fd_vote_instruction_enum_authorize: {
2408 : // https://github.com/anza-xyz/agave/blob/v2.0.1/programs/vote/src/vote_processor.rs#L87
2409 0 : rc = fd_sysvar_instr_acct_check( ctx, 1, &fd_sysvar_clock_id );
2410 0 : if( FD_UNLIKELY( rc ) ) return rc;
2411 0 : fd_sol_sysvar_clock_t clock_;
2412 0 : fd_sol_sysvar_clock_t const * clock = fd_sysvar_cache_clock_read( ctx->sysvar_cache, &clock_ );
2413 0 : if( FD_UNLIKELY( !clock ) ) return FD_EXECUTOR_INSTR_ERR_UNSUPPORTED_SYSVAR;
2414 :
2415 : // https://github.com/anza-xyz/agave/blob/v2.0.1/programs/vote/src/vote_processor.rs#L89
2416 0 : fd_pubkey_t const * voter_pubkey = &instruction->inner.authorize.pubkey;
2417 0 : fd_vote_authorize_t vote_authorize = instruction->inner.authorize.vote_authorize;
2418 :
2419 0 : rc = authorize( &me, voter_pubkey, vote_authorize, signers, clock, ctx );
2420 :
2421 0 : break;
2422 0 : }
2423 :
2424 : /* AuthorizeWithSeed
2425 : *
2426 : * Instruction:
2427 : * https://github.com/anza-xyz/agave/blob/v2.0.1/sdk/program/src/vote/instruction.rs#L117
2428 : *
2429 : * Processor:
2430 : * https://github.com/anza-xyz/agave/blob/v2.0.1/programs/vote/src/vote_processor.rs#L98
2431 : */
2432 0 : case fd_vote_instruction_enum_authorize_with_seed: {
2433 : // https://github.com/anza-xyz/agave/blob/v2.0.1/programs/vote/src/vote_processor.rs#L99
2434 0 : if( FD_UNLIKELY( ctx->instr->acct_cnt < 3 ) ) {
2435 0 : rc = FD_EXECUTOR_INSTR_ERR_NOT_ENOUGH_ACC_KEYS;
2436 0 : break;
2437 0 : }
2438 :
2439 : // https://github.com/anza-xyz/agave/blob/v2.0.1/programs/vote/src/vote_processor.rs#L100
2440 0 : fd_vote_authorize_with_seed_args_t * args = &instruction->inner.authorize_with_seed;
2441 :
2442 0 : rc = process_authorize_with_seed_instruction( ctx,
2443 0 : &me,
2444 0 : &args->new_authority,
2445 0 : args->authorization_type,
2446 0 : &args->current_authority_derived_key_owner,
2447 0 : args->current_authority_derived_key_seed,
2448 0 : args->current_authority_derived_key_seed_len );
2449 :
2450 0 : break;
2451 0 : }
2452 :
2453 : /* AuthorizeCheckedWithSeed
2454 : *
2455 : * Instruction:
2456 : * https://github.com/anza-xyz/agave/blob/v2.0.1/sdk/program/src/vote/instruction.rs#L131
2457 : *
2458 : * Processor:
2459 : * https://github.com/anza-xyz/agave/blob/v2.0.1/programs/vote/src/vote_processor.rs#L111
2460 : */
2461 0 : case fd_vote_instruction_enum_authorize_checked_with_seed: {
2462 0 : fd_vote_authorize_checked_with_seed_args_t const * args =
2463 0 : &instruction->inner.authorize_checked_with_seed;
2464 :
2465 : // https://github.com/anza-xyz/agave/blob/v2.0.1/programs/vote/src/vote_processor.rs#L112
2466 0 : if( FD_UNLIKELY( ctx->instr->acct_cnt < 4 ) ) {
2467 0 : rc = FD_EXECUTOR_INSTR_ERR_NOT_ENOUGH_ACC_KEYS;
2468 0 : break;
2469 0 : }
2470 :
2471 : // https://github.com/anza-xyz/agave/blob/v2.1.14/programs/vote/src/vote_processor.rs#L99-L100
2472 0 : fd_pubkey_t const * new_authority = NULL;
2473 0 : rc = fd_exec_instr_ctx_get_key_of_account_at_index( ctx, 3UL, &new_authority );
2474 0 : if( FD_UNLIKELY( rc ) ) return rc;
2475 :
2476 : // https://github.com/anza-xyz/agave/blob/v2.0.1/programs/vote/src/vote_processor.rs#L116
2477 0 : if( FD_UNLIKELY( !fd_instr_acc_is_signer_idx( ctx->instr, 3 ) ) ) {
2478 : // https://github.com/anza-xyz/agave/blob/v2.0.1/programs/vote/src/vote_processor.rs#L117
2479 0 : rc = FD_EXECUTOR_INSTR_ERR_MISSING_REQUIRED_SIGNATURE;
2480 0 : break;
2481 0 : }
2482 :
2483 : // https://github.com/anza-xyz/agave/blob/v2.0.1/programs/vote/src/vote_processor.rs#L119
2484 0 : rc = process_authorize_with_seed_instruction( ctx,
2485 0 : &me,
2486 0 : new_authority,
2487 0 : args->authorization_type,
2488 0 : &args->current_authority_derived_key_owner,
2489 0 : args->current_authority_derived_key_seed,
2490 0 : args->current_authority_derived_key_seed_len );
2491 :
2492 0 : break;
2493 0 : }
2494 :
2495 : /* UpdateValidatorIdentity
2496 : *
2497 : * Instruction:
2498 : * https://github.com/anza-xyz/agave/blob/v2.0.1/sdk/program/src/vote/instruction.rs#L65
2499 : *
2500 : * Processor:
2501 : * https://github.com/anza-xyz/agave/blob/v2.0.1/programs/vote/src/vote_processor.rs#L130
2502 : */
2503 0 : case fd_vote_instruction_enum_update_validator_identity: {
2504 : // https://github.com/anza-xyz/agave/blob/v2.0.1/programs/vote/src/vote_processor.rs#L131
2505 0 : if( FD_UNLIKELY( ctx->instr->acct_cnt < 2 ) ) {
2506 0 : rc = FD_EXECUTOR_INSTR_ERR_NOT_ENOUGH_ACC_KEYS;
2507 0 : break;
2508 0 : }
2509 :
2510 : // https://github.com/anza-xyz/agave/blob/v2.1.14/programs/vote/src/vote_processor.rs#L118-L120
2511 0 : fd_pubkey_t const * node_pubkey = NULL;
2512 0 : rc = fd_exec_instr_ctx_get_key_of_account_at_index( ctx, 1UL, &node_pubkey );
2513 0 : if( FD_UNLIKELY( rc ) ) return rc;
2514 :
2515 : // https://github.com/anza-xyz/agave/blob/v2.0.1/programs/vote/src/vote_processor.rs#L135
2516 0 : rc = update_validator_identity( &me, node_pubkey, signers, ctx );
2517 :
2518 0 : break;
2519 0 : }
2520 :
2521 : // https://github.com/anza-xyz/agave/blob/v2.0.1/programs/vote/src/vote_processor.rs#L142
2522 0 : case fd_vote_instruction_enum_update_commission: {
2523 :
2524 : // https://github.com/anza-xyz/agave/blob/v2.0.1/programs/vote/src/vote_processor.rs#L149
2525 0 : fd_epoch_schedule_t epoch_schedule_;
2526 0 : fd_epoch_schedule_t const * epoch_schedule = fd_sysvar_cache_epoch_schedule_read( ctx->sysvar_cache, &epoch_schedule_ );
2527 0 : if( FD_UNLIKELY( !epoch_schedule ) ) {
2528 0 : return FD_EXECUTOR_INSTR_ERR_UNSUPPORTED_SYSVAR;
2529 0 : }
2530 : // https://github.com/anza-xyz/agave/blob/v2.0.1/programs/vote/src/vote_processor.rs#L150
2531 :
2532 0 : fd_sol_sysvar_clock_t clock_;
2533 0 : fd_sol_sysvar_clock_t const * clock = fd_sysvar_cache_clock_read( ctx->sysvar_cache, &clock_ );
2534 0 : if( FD_UNLIKELY( !clock ) ) {
2535 0 : return FD_EXECUTOR_INSTR_ERR_UNSUPPORTED_SYSVAR;
2536 0 : }
2537 :
2538 : // https://github.com/anza-xyz/agave/blob/v2.0.1/programs/vote/src/vote_processor.rs#L145
2539 0 : rc = update_commission( &me,
2540 0 : instruction->inner.update_commission,
2541 0 : signers,
2542 0 : epoch_schedule,
2543 0 : clock,
2544 0 : ctx );
2545 :
2546 0 : break;
2547 0 : }
2548 :
2549 : /* Vote
2550 : *
2551 : * Instruction:
2552 : * https://github.com/anza-xyz/agave/blob/v2.0.1/sdk/program/src/vote/instruction.rs#L49
2553 : */
2554 0 : case fd_vote_instruction_enum_vote:;
2555 : /* clang-format off */
2556 0 : __attribute__((fallthrough));
2557 : /* clang-format on */
2558 :
2559 : /* VoteSwitch
2560 : *
2561 : * Instruction:
2562 : * https://github.com/anza-xyz/agave/blob/v2.0.1/sdk/program/src/vote/instruction.rs#L81
2563 : *
2564 : * Processor:
2565 : * https://github.com/anza-xyz/agave/blob/v2.0.1/programs/vote/src/vote_processor.rs#L154
2566 : */
2567 0 : case fd_vote_instruction_enum_vote_switch: {
2568 0 : if( FD_FEATURE_ACTIVE_BANK( ctx->txn_ctx->bank, deprecate_legacy_vote_ixs ) ) {
2569 0 : return FD_EXECUTOR_INSTR_ERR_INVALID_INSTR_DATA;
2570 0 : }
2571 :
2572 0 : fd_vote_t * vote;
2573 0 : if( instruction->discriminant == fd_vote_instruction_enum_vote ) {
2574 0 : vote = &instruction->inner.vote;
2575 0 : } else if( instruction->discriminant == fd_vote_instruction_enum_vote_switch ) {
2576 0 : vote = &instruction->inner.vote_switch.vote;
2577 0 : } else {
2578 0 : __builtin_unreachable();
2579 0 : }
2580 :
2581 : // https://github.com/anza-xyz/agave/blob/v2.0.1/programs/vote/src/vote_processor.rs#L155
2582 0 : int err;
2583 0 : err = fd_sysvar_instr_acct_check( ctx, 1, &fd_sysvar_slot_hashes_id );
2584 0 : if( FD_UNLIKELY( err ) ) return err;
2585 :
2586 0 : if( FD_UNLIKELY( !fd_sysvar_cache_slot_hashes_is_valid( ctx->sysvar_cache ) ) ) {
2587 0 : return FD_EXECUTOR_INSTR_ERR_UNSUPPORTED_SYSVAR;
2588 0 : }
2589 :
2590 : // https://github.com/anza-xyz/agave/blob/v2.0.1/programs/vote/src/vote_processor.rs#L157
2591 0 : err = fd_sysvar_instr_acct_check( ctx, 2, &fd_sysvar_clock_id );
2592 0 : if( FD_UNLIKELY( err ) ) return err;
2593 0 : fd_sol_sysvar_clock_t clock_;
2594 0 : fd_sol_sysvar_clock_t const * clock = fd_sysvar_cache_clock_read( ctx->sysvar_cache, &clock_ );
2595 0 : if( FD_UNLIKELY( !clock ) ) return FD_EXECUTOR_INSTR_ERR_UNSUPPORTED_SYSVAR;
2596 :
2597 0 : fd_slot_hash_t const * slot_hashes = fd_sysvar_cache_slot_hashes_join_const( ctx->sysvar_cache ); /* guaranteed to succeed */
2598 0 : rc = process_vote_with_account( &me, slot_hashes, clock, vote, signers, ctx );
2599 0 : fd_sysvar_cache_slot_hashes_leave_const( ctx->sysvar_cache, slot_hashes );
2600 :
2601 0 : break;
2602 0 : }
2603 :
2604 : /* UpdateVoteState
2605 : *
2606 : * Instruction:
2607 : * https://github.com/anza-xyz/agave/blob/v2.0.1/sdk/program/src/vote/instruction.rs#L100
2608 : */
2609 0 : case fd_vote_instruction_enum_update_vote_state:;
2610 : /* clang-format off */
2611 0 : __attribute__((fallthrough));
2612 : /* clang-format on */
2613 :
2614 : /* UpdateVoteStateSwitch
2615 : *
2616 : * Instruction:
2617 : * https://github.com/anza-xyz/agave/blob/v2.0.1/sdk/program/src/vote/instruction.rs#L107
2618 : *
2619 : * Processor:
2620 : * https://github.com/anza-xyz/agave/blob/v2.0.1/programs/vote/src/vote_processor.rs#L169
2621 : */
2622 0 : case fd_vote_instruction_enum_update_vote_state_switch: {
2623 0 : if( FD_FEATURE_ACTIVE_BANK( ctx->txn_ctx->bank, deprecate_legacy_vote_ixs ) ) {
2624 0 : return FD_EXECUTOR_INSTR_ERR_INVALID_INSTR_DATA;
2625 0 : }
2626 :
2627 0 : fd_vote_state_update_t * vote_state_update;
2628 0 : switch( instruction->discriminant ) {
2629 0 : case fd_vote_instruction_enum_update_vote_state:
2630 0 : vote_state_update = &instruction->inner.update_vote_state;
2631 0 : break;
2632 0 : case fd_vote_instruction_enum_update_vote_state_switch:
2633 0 : vote_state_update = &instruction->inner.update_vote_state_switch.vote_state_update;
2634 0 : break;
2635 0 : default:
2636 0 : __builtin_unreachable();
2637 0 : }
2638 :
2639 : // https://github.com/anza-xyz/agave/blob/v2.0.1/programs/vote/src/vote_processor.rs#L171
2640 0 : if( FD_LIKELY( !fd_sysvar_cache_slot_hashes_is_valid( ctx->sysvar_cache ) ) ) {
2641 0 : return FD_EXECUTOR_INSTR_ERR_UNSUPPORTED_SYSVAR;
2642 0 : }
2643 :
2644 : // https://github.com/anza-xyz/agave/blob/v2.0.1/programs/vote/src/vote_processor.rs#L172
2645 0 : fd_sol_sysvar_clock_t clock_;
2646 0 : fd_sol_sysvar_clock_t const * clock = fd_sysvar_cache_clock_read( ctx->sysvar_cache, &clock_ );
2647 0 : if( FD_UNLIKELY( !clock ) )
2648 0 : return FD_EXECUTOR_INSTR_ERR_UNSUPPORTED_SYSVAR;
2649 :
2650 : // https://github.com/anza-xyz/agave/blob/v2.0.1/programs/vote/src/vote_processor.rs#L173
2651 0 : fd_slot_hash_t const * slot_hashes = fd_sysvar_cache_slot_hashes_join_const( ctx->sysvar_cache );
2652 0 : rc = process_vote_state_update( &me, slot_hashes, clock, vote_state_update, signers, ctx );
2653 0 : fd_sysvar_cache_slot_hashes_leave_const( ctx->sysvar_cache, slot_hashes );
2654 :
2655 0 : break;
2656 0 : }
2657 :
2658 : /* CompactUpdateVoteState
2659 : *
2660 : * Instruction:
2661 : * https://github.com/anza-xyz/agave/blob/v2.0.1/sdk/program/src/vote/instruction.rs#L139
2662 : *
2663 : * Notes:
2664 : * - Up to three signers: the vote authority, the authorized withdrawer, and the new authority.
2665 : * - Feature gated, but live on mainnet.
2666 : */
2667 0 : case fd_vote_instruction_enum_compact_update_vote_state:;
2668 0 : __attribute__((fallthrough));
2669 :
2670 : /* CompactUpdateVoteStateSwitch
2671 : *
2672 : * Instruction:
2673 : * https://github.com/anza-xyz/agave/blob/v2.0.1/sdk/program/src/vote/instruction.rs#L146
2674 : *
2675 : * Processor:
2676 : * https://github.com/anza-xyz/agave/blob/v2.0.1/programs/vote/src/vote_processor.rs#L183
2677 : *
2678 : * Notes:
2679 : * - Up to three signers: the vote authority, the authorized withdrawer, and the new authority.
2680 : * - Feature gated, but live on mainnet.
2681 : */
2682 0 : case fd_vote_instruction_enum_compact_update_vote_state_switch: {
2683 : /* https://github.com/anza-xyz/agave/blob/dc4b9dcbbf859ff48f40d00db824bde063fdafcc/programs/vote/src/vote_processor.rs#L183-L191 */
2684 0 : if( FD_FEATURE_ACTIVE_BANK( ctx->txn_ctx->bank, deprecate_legacy_vote_ixs ) ) {
2685 0 : return FD_EXECUTOR_INSTR_ERR_INVALID_INSTR_DATA;
2686 0 : }
2687 :
2688 0 : fd_compact_vote_state_update_t * vote_state_update = NULL;
2689 0 : if( instruction->discriminant == fd_vote_instruction_enum_compact_update_vote_state ) {
2690 0 : vote_state_update = &instruction->inner.compact_update_vote_state;
2691 0 : } else if( instruction->discriminant ==
2692 0 : fd_vote_instruction_enum_compact_update_vote_state_switch ) {
2693 0 : vote_state_update =
2694 0 : &instruction->inner.compact_update_vote_state_switch.compact_vote_state_update;
2695 0 : }
2696 :
2697 0 : fd_vote_state_update_t vote_update;
2698 0 : fd_vote_state_update_new( &vote_update );
2699 0 : if( FD_UNLIKELY( !fd_vote_decode_compact_update( vote_state_update, &vote_update, ctx ) ) )
2700 0 : return FD_EXECUTOR_INSTR_ERR_INVALID_INSTR_DATA;
2701 :
2702 : // https://github.com/anza-xyz/agave/blob/v2.0.1/programs/vote/src/vote_processor.rs#L185
2703 0 : if( FD_LIKELY( !fd_sysvar_cache_slot_hashes_is_valid( ctx->sysvar_cache ) ) ) {
2704 0 : return FD_EXECUTOR_INSTR_ERR_UNSUPPORTED_SYSVAR;
2705 0 : }
2706 :
2707 0 : fd_sol_sysvar_clock_t clock_;
2708 0 : fd_sol_sysvar_clock_t const * clock = fd_sysvar_cache_clock_read( ctx->sysvar_cache, &clock_ );
2709 0 : if( FD_UNLIKELY( !clock ) )
2710 0 : return FD_EXECUTOR_INSTR_ERR_UNSUPPORTED_SYSVAR;
2711 :
2712 : // https://github.com/anza-xyz/agave/blob/v2.0.1/programs/vote/src/vote_processor.rs#L187
2713 0 : fd_slot_hash_t const * slot_hashes = fd_sysvar_cache_slot_hashes_join_const( ctx->sysvar_cache ); /* guaranteed to succeed */
2714 0 : rc = process_vote_state_update( &me, slot_hashes, clock, &vote_update, signers, ctx );
2715 0 : fd_sysvar_cache_slot_hashes_leave_const( ctx->sysvar_cache, slot_hashes );
2716 :
2717 0 : break;
2718 0 : }
2719 :
2720 : /* TowerSync(Switch)
2721 : *
2722 : * Instruction:
2723 : * https://github.com/anza-xyz/agave/blob/v2.0.1/sdk/program/src/vote/instruction.rs#L151-L157
2724 : *
2725 : * Processor:
2726 : * https://github.com/anza-xyz/agave/blob/v2.0.1/programs/vote/src/vote_processor.rs#L196-L215
2727 : */
2728 :
2729 0 : case fd_vote_instruction_enum_tower_sync:
2730 0 : case fd_vote_instruction_enum_tower_sync_switch: {
2731 0 : fd_tower_sync_t * tower_sync = (instruction->discriminant == fd_vote_instruction_enum_tower_sync)
2732 0 : ? &instruction->inner.tower_sync
2733 0 : : &instruction->inner.tower_sync_switch.tower_sync;
2734 :
2735 0 : if( FD_LIKELY( !fd_sysvar_cache_slot_hashes_is_valid( ctx->sysvar_cache ) ) ) {
2736 0 : return FD_EXECUTOR_INSTR_ERR_UNSUPPORTED_SYSVAR;
2737 0 : }
2738 :
2739 0 : fd_sol_sysvar_clock_t clock_;
2740 0 : fd_sol_sysvar_clock_t const * clock = fd_sysvar_cache_clock_read( ctx->sysvar_cache, &clock_ );
2741 0 : if( FD_UNLIKELY( !clock ) ) {
2742 0 : return FD_EXECUTOR_INSTR_ERR_UNSUPPORTED_SYSVAR;
2743 0 : }
2744 :
2745 0 : fd_slot_hash_t const * slot_hashes = fd_sysvar_cache_slot_hashes_join_const( ctx->sysvar_cache );
2746 0 : FD_TEST( slot_hashes );
2747 0 : rc = process_tower_sync( &me, slot_hashes, clock, tower_sync, signers, ctx );
2748 0 : fd_sysvar_cache_slot_hashes_leave_const( ctx->sysvar_cache, slot_hashes );
2749 :
2750 0 : break;
2751 0 : }
2752 :
2753 : /* Withdraw
2754 : *
2755 : * Instruction:
2756 : * https://github.com/anza-xyz/agave/blob/v2.0.1/sdk/program/src/vote/instruction.rs#L57
2757 : *
2758 : * Processor:
2759 : * https://github.com/anza-xyz/agave/blob/v2.0.1/programs/vote/src/vote_processor.rs#L216
2760 : */
2761 0 : case fd_vote_instruction_enum_withdraw: {
2762 0 : if( FD_UNLIKELY( ctx->instr->acct_cnt < 2 ) ) {
2763 0 : rc = FD_EXECUTOR_INSTR_ERR_NOT_ENOUGH_ACC_KEYS;
2764 0 : break;
2765 0 : }
2766 0 : fd_rent_t rent_;
2767 0 : fd_rent_t const * rent_sysvar = fd_sysvar_cache_rent_read( ctx->sysvar_cache, &rent_ );
2768 0 : if( FD_UNLIKELY( !rent_sysvar ) )
2769 0 : return FD_EXECUTOR_INSTR_ERR_UNSUPPORTED_SYSVAR;
2770 0 : fd_sol_sysvar_clock_t clock_;
2771 0 : fd_sol_sysvar_clock_t const * clock_sysvar = fd_sysvar_cache_clock_read( ctx->sysvar_cache, &clock_ );
2772 0 : if( FD_UNLIKELY( !clock_sysvar ) )
2773 0 : return FD_EXECUTOR_INSTR_ERR_UNSUPPORTED_SYSVAR;
2774 :
2775 0 : rc = withdraw( ctx,
2776 0 : &me,
2777 0 : instruction->inner.withdraw,
2778 0 : 1UL,
2779 0 : signers,
2780 0 : rent_sysvar,
2781 0 : clock_sysvar );
2782 :
2783 0 : break;
2784 0 : }
2785 :
2786 : /* AuthorizeChecked
2787 : *
2788 : * Instruction:
2789 : * https://github.com/anza-xyz/agave/blob/v2.0.1/sdk/program/src/vote/instruction.rs#L93
2790 : *
2791 : * Processor:
2792 : * https://github.com/anza-xyz/agave/blob/v2.0.1/programs/vote/src/vote_processor.rs#L234
2793 : *
2794 : * Notes:
2795 : * - Up to three signers: the vote authority, the authorized withdrawer, and the new authority.
2796 : * - Feature gated, but live on mainnet.
2797 : */
2798 0 : case fd_vote_instruction_enum_authorize_checked: {
2799 0 : if( FD_UNLIKELY( ctx->instr->acct_cnt < 4 ) ) {
2800 0 : rc = FD_EXECUTOR_INSTR_ERR_NOT_ENOUGH_ACC_KEYS;
2801 0 : break;
2802 0 : }
2803 :
2804 : // https://github.com/anza-xyz/agave/blob/v2.1.14/programs/vote/src/vote_processor.rs#L243-L245
2805 0 : fd_pubkey_t const * voter_pubkey = NULL;
2806 0 : rc = fd_exec_instr_ctx_get_key_of_account_at_index( ctx, 3UL, &voter_pubkey );
2807 0 : if( FD_UNLIKELY( rc ) ) return rc;
2808 :
2809 : // https://github.com/anza-xyz/agave/blob/v2.0.1/programs/vote/src/vote_processor.rs#L239
2810 0 : if( FD_UNLIKELY( !fd_instr_acc_is_signer_idx( ctx->instr, 3 ) ) ) {
2811 0 : rc = FD_EXECUTOR_INSTR_ERR_MISSING_REQUIRED_SIGNATURE;
2812 0 : break;
2813 0 : }
2814 :
2815 : // https://github.com/anza-xyz/agave/blob/v2.0.1/programs/vote/src/vote_processor.rs#L242
2816 0 : rc = fd_sysvar_instr_acct_check( ctx, 1, &fd_sysvar_clock_id );
2817 0 : if( FD_UNLIKELY( rc ) ) return rc;
2818 0 : fd_sol_sysvar_clock_t clock_;
2819 0 : fd_sol_sysvar_clock_t const * clock = fd_sysvar_cache_clock_read( ctx->sysvar_cache, &clock_ );
2820 0 : if( FD_UNLIKELY( !clock ) ) return FD_EXECUTOR_INSTR_ERR_UNSUPPORTED_SYSVAR;
2821 :
2822 0 : rc = authorize( &me,
2823 0 : voter_pubkey,
2824 0 : instruction->inner.authorize_checked,
2825 0 : signers,
2826 0 : clock,
2827 0 : ctx );
2828 0 : break;
2829 0 : }
2830 :
2831 0 : default:
2832 0 : FD_LOG_ERR(( "unsupported vote instruction: %u", instruction->discriminant ));
2833 0 : }
2834 :
2835 0 : return rc;
2836 0 : }
2837 :
2838 : /**********************************************************************/
2839 : /* Public API */
2840 : /**********************************************************************/
2841 :
2842 : uint
2843 0 : fd_vote_state_versions_is_correct_and_initialized( fd_txn_account_t * vote_account ) {
2844 : // https://github.com/anza-xyz/agave/blob/v2.0.1/sdk/program/src/vote/state/mod.rs#L885
2845 0 : uint data_len_check = vote_account->vt->get_data_len( vote_account ) == FD_VOTE_STATE_V3_SZ;
2846 0 : uchar test_data[DEFAULT_PRIOR_VOTERS_OFFSET] = {0};
2847 0 : uint data_check = memcmp((
2848 0 : vote_account->vt->get_data( vote_account ) + VERSION_OFFSET), test_data, DEFAULT_PRIOR_VOTERS_OFFSET) != 0;
2849 0 : if (data_check && data_len_check) {
2850 0 : return 1;
2851 0 : }
2852 :
2853 : // VoteState1_14_11::is_correct_size_and_initialized
2854 : // https://github.com/anza-xyz/agave/blob/v2.0.1/sdk/program/src/vote/state/vote_state_1_14_11.rs#L58
2855 0 : data_len_check = vote_account->vt->get_data_len( vote_account ) == FD_VOTE_STATE_V2_SZ;
2856 0 : uchar test_data_1_14_11[DEFAULT_PRIOR_VOTERS_OFFSET_1_14_11] = {0};
2857 0 : data_check = memcmp(
2858 0 : (vote_account->vt->get_data( vote_account ) + VERSION_OFFSET), test_data_1_14_11, DEFAULT_PRIOR_VOTERS_OFFSET_1_14_11) != 0;
2859 0 : return data_check && data_len_check;
2860 0 : }
2861 :
2862 : int
2863 : fd_vote_get_state( fd_txn_account_t const * self,
2864 : fd_spad_t * spad,
2865 0 : fd_vote_state_versioned_t * * versioned /* out */ ) {
2866 0 : int err = 0;
2867 0 : *versioned = get_state( self, spad, &err );
2868 0 : return err;
2869 0 : }
2870 :
2871 : void
2872 : fd_vote_convert_to_current( fd_vote_state_versioned_t * self,
2873 0 : fd_spad_t * spad ) {
2874 0 : convert_to_current( self, spad );
2875 0 : }
2876 :
2877 : static void
2878 : remove_vote_account( fd_txn_account_t * vote_account,
2879 0 : fd_bank_t * bank ) {
2880 :
2881 0 : fd_stakes_global_t * stakes = fd_bank_stakes_locking_modify( bank );
2882 0 : fd_vote_accounts_global_t * epoch_vote_accounts = &stakes->vote_accounts;
2883 0 : fd_vote_accounts_pair_global_t_mapnode_t * epoch_vote_accounts_pool = fd_vote_accounts_vote_accounts_pool_join( epoch_vote_accounts );
2884 0 : fd_vote_accounts_pair_global_t_mapnode_t * epoch_vote_accounts_root = fd_vote_accounts_vote_accounts_root_join( epoch_vote_accounts );
2885 :
2886 0 : if( FD_UNLIKELY( epoch_vote_accounts_pool==NULL ) ) {
2887 0 : FD_LOG_DEBUG(("Vote accounts pool does not exist"));
2888 0 : fd_bank_stakes_end_locking_modify( bank );
2889 0 : return;
2890 0 : }
2891 :
2892 :
2893 0 : fd_vote_accounts_pair_global_t_mapnode_t vote_acc;
2894 0 : fd_memcpy( vote_acc.elem.key.uc, vote_account->pubkey->uc, sizeof(fd_pubkey_t) );
2895 0 : fd_vote_accounts_pair_global_t_mapnode_t * vote_account_entry = fd_vote_accounts_pair_global_t_map_find( epoch_vote_accounts_pool, epoch_vote_accounts_root, &vote_acc );
2896 0 : if( FD_LIKELY( vote_account_entry ) ) {
2897 0 : fd_vote_accounts_pair_global_t_map_remove( epoch_vote_accounts_pool, &epoch_vote_accounts_root, vote_account_entry);
2898 0 : }
2899 :
2900 0 : fd_vote_accounts_vote_accounts_pool_update( epoch_vote_accounts, epoch_vote_accounts_pool );
2901 0 : fd_vote_accounts_vote_accounts_root_update( epoch_vote_accounts, epoch_vote_accounts_root );
2902 0 : fd_bank_stakes_end_locking_modify( bank );
2903 :
2904 0 : fd_account_keys_global_t * vote_account_keys = fd_bank_vote_account_keys_locking_modify( bank );
2905 0 : fd_account_keys_pair_t_mapnode_t * vote_account_keys_pool = fd_account_keys_account_keys_pool_join( vote_account_keys );
2906 0 : fd_account_keys_pair_t_mapnode_t * vote_account_keys_root = fd_account_keys_account_keys_root_join( vote_account_keys );
2907 :
2908 0 : if( FD_UNLIKELY( vote_account_keys_pool==NULL ) ) {
2909 0 : fd_bank_vote_account_keys_end_locking_modify( bank );
2910 0 : FD_LOG_DEBUG(("Vote accounts pool does not exist"));
2911 0 : return;
2912 0 : }
2913 :
2914 0 : fd_account_keys_pair_t_mapnode_t account_key;
2915 0 : fd_memcpy( account_key.elem.key.uc, vote_account->pubkey->uc, sizeof(fd_pubkey_t) );
2916 0 : fd_account_keys_pair_t_mapnode_t * account_key_entry = fd_account_keys_pair_t_map_find( vote_account_keys_pool, vote_account_keys_root, &account_key );
2917 0 : if( account_key_entry ) {
2918 0 : fd_account_keys_pair_t_map_remove( vote_account_keys_pool, &vote_account_keys_root, account_key_entry );
2919 0 : }
2920 :
2921 0 : fd_account_keys_account_keys_pool_update( vote_account_keys, vote_account_keys_pool );
2922 :
2923 0 : fd_bank_vote_account_keys_end_locking_modify( bank );
2924 0 : }
2925 :
2926 : static void
2927 : upsert_vote_account( fd_txn_account_t * vote_account,
2928 0 : fd_bank_t * bank ) {
2929 :
2930 0 : fd_stakes_global_t const * stakes = fd_bank_stakes_locking_query( bank );
2931 0 : fd_vote_accounts_pair_global_t_mapnode_t * stakes_vote_accounts_pool = fd_vote_accounts_vote_accounts_pool_join( &stakes->vote_accounts );
2932 0 : fd_vote_accounts_pair_global_t_mapnode_t * stakes_vote_accounts_root = fd_vote_accounts_vote_accounts_root_join( &stakes->vote_accounts );
2933 :
2934 0 : fd_account_keys_global_t * vote_account_keys = fd_bank_vote_account_keys_locking_modify( bank );
2935 0 : fd_account_keys_pair_t_mapnode_t * vote_account_keys_pool = fd_account_keys_account_keys_pool_join( vote_account_keys );
2936 0 : fd_account_keys_pair_t_mapnode_t * vote_account_keys_root = fd_account_keys_account_keys_root_join( vote_account_keys );
2937 :
2938 0 : if( FD_UNLIKELY( vote_account_keys_pool==NULL ) ) {
2939 0 : fd_bank_vote_account_keys_end_locking_modify( bank );
2940 0 : fd_bank_stakes_end_locking_query( bank );
2941 0 : FD_LOG_DEBUG(( "Vote accounts pool does not exist" ));
2942 0 : return;
2943 0 : }
2944 :
2945 0 : if( fd_vote_state_versions_is_correct_and_initialized( vote_account ) ) {
2946 0 : fd_account_keys_pair_t_mapnode_t key;
2947 0 : fd_memcpy( &key.elem.key, vote_account->pubkey->uc, sizeof(fd_pubkey_t) );
2948 :
2949 0 : fd_vote_accounts_pair_global_t_mapnode_t vote_acc;
2950 0 : fd_memcpy( &vote_acc.elem.key, vote_account->pubkey->uc, sizeof(fd_pubkey_t) );
2951 :
2952 : // Skip duplicates
2953 0 : if( FD_LIKELY( fd_account_keys_pair_t_map_find( vote_account_keys_pool, vote_account_keys_root, &key ) ||
2954 0 : fd_vote_accounts_pair_global_t_map_find( stakes_vote_accounts_pool, stakes_vote_accounts_root, &vote_acc ) ) ) {
2955 0 : fd_bank_vote_account_keys_end_locking_modify( bank );
2956 0 : fd_bank_stakes_end_locking_query( bank );
2957 0 : return;
2958 0 : }
2959 0 : fd_bank_stakes_end_locking_query( bank );
2960 :
2961 0 : fd_account_keys_pair_t_mapnode_t * new_node = fd_account_keys_pair_t_map_acquire( vote_account_keys_pool );
2962 0 : if( FD_UNLIKELY( !new_node ) ) {
2963 0 : FD_LOG_ERR(("Map full"));
2964 0 : }
2965 :
2966 0 : fd_memcpy( &new_node->elem.key, vote_account->pubkey, sizeof(fd_pubkey_t));
2967 0 : fd_account_keys_pair_t_map_insert( vote_account_keys_pool, &vote_account_keys_root, new_node );
2968 0 : fd_bank_vote_account_keys_end_locking_modify( bank );
2969 0 : } else {
2970 0 : fd_bank_vote_account_keys_end_locking_modify( bank );
2971 0 : fd_bank_stakes_end_locking_query( bank );
2972 0 : remove_vote_account( vote_account, bank );
2973 0 : }
2974 0 : }
2975 :
2976 : void
2977 : fd_vote_store_account( fd_txn_account_t * vote_account,
2978 0 : fd_bank_t * bank ) {
2979 0 : fd_pubkey_t const * owner = vote_account->vt->get_owner( vote_account );
2980 :
2981 0 : if (memcmp(owner->uc, fd_solana_vote_program_id.key, sizeof(fd_pubkey_t)) != 0) {
2982 0 : return;
2983 0 : }
2984 :
2985 0 : if( vote_account->vt->get_lamports( vote_account ) == 0 ) {
2986 0 : remove_vote_account( vote_account, bank );
2987 0 : } else {
2988 0 : upsert_vote_account( vote_account, bank );
2989 0 : }
2990 0 : }
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