LCOV - code coverage report
Current view: top level - flamenco/runtime/sysvar - fd_sysvar_cache.c (source / functions) Hit Total Coverage
Test: cov.lcov Lines: 141 142 99.3 %
Date: 2026-05-12 06:58:09 Functions: 21 21 100.0 %

          Line data    Source code
       1             : #include "fd_sysvar_cache.h"
       2             : #include "fd_sysvar_cache_private.h"
       3             : #include "fd_sysvar_recent_hashes.h"
       4             : #include "fd_sysvar_slot_hashes.h"
       5             : #include "fd_sysvar_slot_history.h"
       6             : #include "fd_sysvar_stake_history.h"
       7             : #include <errno.h>
       8             : 
       9             : void *
      10        7518 : fd_sysvar_cache_new( void * mem ) {
      11             : 
      12        7518 :   if( FD_UNLIKELY( !mem ) ) {
      13           3 :     FD_LOG_WARNING(( "NULL mem" ));
      14           3 :     return NULL;
      15           3 :   }
      16        7515 :   if( FD_UNLIKELY( !fd_ulong_is_aligned( (ulong)mem, alignof(fd_sysvar_cache_t) ) ) ) {
      17           3 :     FD_LOG_WARNING(( "misaligned mem" ));
      18           3 :     return NULL;
      19           3 :   }
      20             : 
      21        7512 :   fd_sysvar_cache_t * sysvar_cache = mem;
      22        7512 :   sysvar_cache->magic = 0UL;
      23        7512 :   memset( sysvar_cache->desc, 0, FD_SYSVAR_CACHE_ENTRY_CNT*sizeof(fd_sysvar_desc_t) );
      24             : 
      25        7512 :   FD_COMPILER_MFENCE();
      26        7512 :   sysvar_cache->magic = FD_SYSVAR_CACHE_MAGIC;
      27        7512 :   FD_COMPILER_MFENCE();
      28             : 
      29        7512 :   return sysvar_cache;
      30        7515 : }
      31             : 
      32             : fd_sysvar_cache_t *
      33        7524 : fd_sysvar_cache_join( void * mem ) {
      34             :   /* FIXME This is a good place to ref-count writable joins */
      35        7524 :   return (fd_sysvar_cache_t *)fd_sysvar_cache_join_const( mem );
      36        7524 : }
      37             : 
      38             : fd_sysvar_cache_t const *
      39        7533 : fd_sysvar_cache_join_const( void const * mem ) {
      40             : 
      41        7533 :   if( FD_UNLIKELY( !mem ) ) {
      42           6 :     FD_LOG_WARNING(( "NULL mem" ));
      43           6 :     return NULL;
      44           6 :   }
      45        7527 :   if( FD_UNLIKELY( !fd_ulong_is_aligned( (ulong)mem, alignof(fd_sysvar_cache_t) ) ) ) {
      46           6 :     FD_LOG_WARNING(( "misaligned mem" ));
      47           6 :     return NULL;
      48           6 :   }
      49        7521 :   fd_sysvar_cache_t const * sysvar_cache = mem;
      50        7521 :   if( FD_UNLIKELY( sysvar_cache->magic != FD_SYSVAR_CACHE_MAGIC ) ) {
      51           6 :     FD_LOG_WARNING(( "bad magic" ));
      52           6 :     return NULL;
      53           6 :   }
      54             : 
      55        7515 :   return sysvar_cache;
      56        7521 : }
      57             : 
      58             : void *
      59        7512 : fd_sysvar_cache_leave( fd_sysvar_cache_t * sysvar_cache ) {
      60        7512 :   return sysvar_cache;
      61        7512 : }
      62             : 
      63             : void const *
      64           3 : fd_sysvar_cache_leave_const( fd_sysvar_cache_t const * sysvar_cache ) {
      65           3 :   return sysvar_cache;
      66           3 : }
      67             : 
      68             : void *
      69          69 : fd_sysvar_cache_delete( void * mem ) {
      70             : 
      71          69 :   if( FD_UNLIKELY( !mem ) ) {
      72           3 :     FD_LOG_WARNING(( "NULL mem" ));
      73           3 :     return NULL;
      74           3 :   }
      75          66 :   fd_sysvar_cache_t * sysvar_cache = mem;
      76          66 :   if( FD_UNLIKELY( sysvar_cache->magic != FD_SYSVAR_CACHE_MAGIC ) ) {
      77           3 :     FD_LOG_WARNING(( "bad magic" ));
      78           3 :     return NULL;
      79           3 :   }
      80             : 
      81          63 :   memset( sysvar_cache, 0, sizeof(fd_sysvar_cache_t) );
      82             : 
      83          63 :   return mem;
      84          66 : }
      85             : 
      86             : uchar const *
      87             : fd_sysvar_cache_data_query(
      88             :     fd_sysvar_cache_t const * sysvar_cache,
      89             :     void const *              address, /* 32 bytes */
      90             :     ulong *                   psz
      91         522 : ) {
      92         522 :   *psz = 0UL;
      93         522 :   fd_pubkey_t const pubkey = FD_LOAD( fd_pubkey_t, address );
      94         522 :   sysvar_tbl_t const * entry = sysvar_map_query( &pubkey, NULL );
      95         522 :   if( FD_UNLIKELY( !entry ) ) return NULL; /* address is not a sysvar */
      96         519 :   fd_sysvar_desc_t const * desc = &sysvar_cache->desc[ entry->desc_idx ];
      97         519 :   fd_sysvar_pos_t const *  pos  = &fd_sysvar_pos_tbl [ entry->desc_idx ];
      98         519 :   if( !( desc->flags & FD_SYSVAR_FLAG_VALID ) ) return NULL; /* sysvar data invalid */
      99         492 :   *psz = desc->data_sz;
     100         492 :   return (uchar const *)sysvar_cache + pos->data_off;
     101         519 : }
     102             : 
     103             : /* Generate accessors for sysvars that are backed by POD structs. */
     104             : 
     105             : #define SIMPLE_SYSVAR_READ( name, name2, typet )                       \
     106             :   typet *                                                              \
     107             :   fd_sysvar_cache_##name##_read( fd_sysvar_cache_t const * cache,      \
     108          45 :                                  typet *                   out ) {     \
     109          45 :     ulong const idx = FD_SYSVAR_##name##_IDX;                          \
     110          45 :     fd_sysvar_desc_t const * desc = &cache->desc[ idx ];               \
     111          45 :     fd_sysvar_pos_t const *  pos  = &fd_sysvar_pos_tbl[ idx ];         \
     112          45 :     if( FD_UNLIKELY( !( desc->flags & FD_SYSVAR_FLAG_VALID ) ) ) return NULL; \
     113          45 :     if( !pos->obj_max ) memcpy( out, (uchar *)cache+pos->data_off, pos->data_max ); \
     114          27 :     else                memcpy( out, (uchar *)cache+pos->obj_off,  pos->obj_max  ); \
     115          27 :     return out;                                                        \
     116          45 :   }
     117             : 
     118             : #define SIMPLE_SYSVAR( name, name2, type ) \
     119             :   SIMPLE_SYSVAR_READ( name, name2, fd_##type##_t )
     120          18 : FD_SYSVAR_SIMPLE_ITER( SIMPLE_SYSVAR )
     121          18 : #undef SIMPLE_SYSVAR
     122          18 : #undef SIMPLE_SYSVAR_READ
     123          18 : 
     124          18 : ulong const *
     125          18 : fd_sysvar_cache_last_restart_slot_read( fd_sysvar_cache_t const * cache ) {
     126           3 :   ulong const idx = FD_SYSVAR_last_restart_slot_IDX;
     127           3 :   fd_sysvar_desc_t const * desc = &cache->desc[ idx ];
     128           3 :   fd_sysvar_pos_t const *  pos  = &fd_sysvar_pos_tbl[ idx ];
     129           3 :   if( FD_UNLIKELY( !( desc->flags & FD_SYSVAR_FLAG_VALID ) ) ) return NULL;
     130           0 :   return fd_type_pun_const( (uchar const *)cache + pos->data_off );
     131           3 : }
     132             : 
     133             : int
     134           9 : fd_sysvar_cache_recent_hashes_is_empty( fd_sysvar_cache_t const * sysvar_cache ) {
     135           9 :   fd_sysvar_desc_t const * desc = &sysvar_cache->desc[ FD_SYSVAR_recent_hashes_IDX ];
     136           9 :   if( FD_UNLIKELY( !( desc->flags & FD_SYSVAR_FLAG_VALID ) ) ) return 1;
     137           9 :   FD_TEST( desc->data_sz >= sizeof(ulong) );
     138           9 :   ulong len = FD_LOAD( ulong, sysvar_cache->bin_recent_hashes );
     139           9 :   return len == 0UL;
     140           9 : }
     141             : 
     142             : int
     143             : fd_sysvar_obj_restore( fd_sysvar_cache_t *     cache,
     144             :                        fd_sysvar_desc_t *      desc,
     145       56226 :                        fd_sysvar_pos_t const * pos ) {
     146       56226 :   desc->flags &= ~FD_SYSVAR_FLAG_VALID;
     147             : 
     148       56226 :   uchar const * data    = (uchar const *)cache + pos->data_off;
     149       56226 :   ulong const   data_sz = desc->data_sz;
     150             : 
     151       56226 :   if( FD_UNLIKELY( !pos->validate( data, data_sz ) ) ) {
     152           9 :     FD_LOG_DEBUG(( "Failed to validate sysvar %s with data_sz=%lu",
     153           9 :                     pos->name, data_sz ));
     154           9 :     return EINVAL;
     155           9 :   }
     156       56217 :   desc->flags |= FD_SYSVAR_FLAG_VALID;
     157       56217 :   return 0;
     158       56226 : }
     159             : 
     160             : #define TYPES_CALLBACKS( name, suf )                                   \
     161             :   .decode_footprint = fd_##name##_decode_footprint,                    \
     162             :   .decode           = (__typeof__(((fd_sysvar_pos_t *)NULL)->decode))(ulong)fd_##name##_decode##suf
     163             : 
     164             : static int
     165        6963 : fd_sysvar_validate_clock( uchar const * data, ulong data_sz ) {
     166        6963 :   (void)data;
     167        6963 :   return data_sz >= sizeof(fd_sol_sysvar_clock_t );
     168        6963 : }
     169             : 
     170             : static int
     171        6957 : fd_sysvar_validate_rent( uchar const * data, ulong data_sz ) {
     172        6957 :   (void)data;
     173        6957 :   return data_sz >= sizeof(fd_rent_t );
     174        6957 : }
     175             : 
     176             : static int
     177        6927 : fd_sysvar_validate_last_restart_slot( uchar const * data, ulong data_sz ) {
     178        6927 :   (void)data;
     179        6927 :   return data_sz >= sizeof(ulong);
     180        6927 : }
     181             : 
     182             : static int
     183         183 : fd_sysvar_validate_epoch_rewards( uchar const * data, ulong data_sz ) {
     184         183 :   if( FD_UNLIKELY( data_sz < sizeof(fd_sysvar_epoch_rewards_t) ) ) return 0;
     185         183 :   fd_sysvar_epoch_rewards_t ew = FD_LOAD( fd_sysvar_epoch_rewards_t, data );
     186         183 :   uchar active = ew.active;
     187         183 :   if( FD_UNLIKELY( active!=0 && active!=1 ) ) return 0;
     188         180 :   return 1;
     189         183 : }
     190             : 
     191             : static int
     192        6960 : fd_sysvar_validate_epoch_schedule( uchar const * data, ulong data_sz ) {
     193        6960 :   if( FD_UNLIKELY( data_sz < sizeof(fd_epoch_schedule_t) ) ) return 0;
     194        6960 :   fd_epoch_schedule_t es = FD_LOAD( fd_epoch_schedule_t, data );
     195        6960 :   uchar warmup = es.warmup;
     196        6960 :   if( FD_UNLIKELY( warmup!=0 && warmup!=1 ) ) return 0;
     197        6957 :   return 1;
     198        6960 : }
     199             : 
     200             : fd_sysvar_pos_t const fd_sysvar_pos_tbl[ FD_SYSVAR_CACHE_ENTRY_CNT ] = {
     201             :   [FD_SYSVAR_clock_IDX] =
     202             :     { .name="clock",
     203             :       .data_off=offsetof(fd_sysvar_cache_t, bin_clock            ), .data_max=FD_SYSVAR_CLOCK_BINCODE_SZ,
     204             :       .validate=fd_sysvar_validate_clock },
     205             :   [FD_SYSVAR_epoch_rewards_IDX] =
     206             :     { .name="epoch rewards",
     207             :       .data_off=offsetof(fd_sysvar_cache_t, bin_epoch_rewards    ), .data_max=FD_SYSVAR_EPOCH_REWARDS_BINCODE_SZ,
     208             :       .validate=fd_sysvar_validate_epoch_rewards },
     209             :   [FD_SYSVAR_epoch_schedule_IDX] =
     210             :     { .name="epoch schedule",
     211             :       .data_off=offsetof(fd_sysvar_cache_t, bin_epoch_schedule   ), .data_max=FD_SYSVAR_EPOCH_SCHEDULE_BINCODE_SZ,
     212             :       .validate=fd_sysvar_validate_epoch_schedule },
     213             :   [FD_SYSVAR_last_restart_slot_IDX] =
     214             :     { .name="last restart slot",
     215             :       .data_off=offsetof(fd_sysvar_cache_t, bin_last_restart_slot), .data_max=FD_SYSVAR_LAST_RESTART_SLOT_BINCODE_SZ,
     216             :       .validate=fd_sysvar_validate_last_restart_slot },
     217             :   [FD_SYSVAR_recent_hashes_IDX] =
     218             :     { .name="recent blockhashes",
     219             :       .data_off=offsetof(fd_sysvar_cache_t, bin_recent_hashes    ), .data_max=FD_SYSVAR_RECENT_HASHES_BINCODE_SZ,
     220             :       .validate=fd_sysvar_recent_hashes_validate },
     221             :   [FD_SYSVAR_rent_IDX] =
     222             :     { .name="rent",
     223             :       .data_off=offsetof(fd_sysvar_cache_t, bin_rent             ), .data_max=FD_SYSVAR_RENT_BINCODE_SZ,
     224             :       .validate=fd_sysvar_validate_rent },
     225             :   [FD_SYSVAR_slot_hashes_IDX] =
     226             :     { .name="slot hashes",
     227             :       .data_off=offsetof(fd_sysvar_cache_t, bin_slot_hashes      ), .data_max=FD_SYSVAR_SLOT_HASHES_BINCODE_SZ,
     228             :       .validate=fd_sysvar_slot_hashes_validate },
     229             :   [FD_SYSVAR_slot_history_IDX] =
     230             :     { .name="slot history",
     231             :       .data_off=offsetof(fd_sysvar_cache_t, bin_slot_history     ), .data_max=FD_SYSVAR_SLOT_HISTORY_BINCODE_SZ,
     232             :       .validate=fd_sysvar_slot_history_validate },
     233             :   [FD_SYSVAR_stake_history_IDX] =
     234             :     { .name="stake history",
     235             :       .data_off=offsetof(fd_sysvar_cache_t, bin_stake_history    ), .data_max=FD_SYSVAR_STAKE_HISTORY_BINCODE_SZ,
     236             :       .validate=fd_sysvar_stake_history_validate },
     237             : };
     238             : 
     239             : fd_slot_hashes_t *
     240             : fd_sysvar_cache_slot_hashes_view( fd_sysvar_cache_t const * cache,
     241         111 :                                   fd_slot_hashes_t *        view ) {
     242         111 :   fd_sysvar_desc_t const * desc = &cache->desc[ FD_SYSVAR_slot_hashes_IDX ];
     243         111 :   if( FD_UNLIKELY( !( desc->flags & FD_SYSVAR_FLAG_VALID ) ) ) return NULL;
     244         111 :   return fd_sysvar_slot_hashes_view( view, cache->bin_slot_hashes, desc->data_sz );
     245         111 : }
     246             : 
     247             : fd_stake_history_t *
     248             : fd_sysvar_cache_stake_history_view( fd_sysvar_cache_t const * cache,
     249         414 :                                     fd_stake_history_t *      view ) {
     250         414 :   fd_sysvar_desc_t const * desc = &cache->desc[ FD_SYSVAR_stake_history_IDX ];
     251         414 :   if( FD_UNLIKELY( !( desc->flags & FD_SYSVAR_FLAG_VALID ) ) ) return NULL;
     252         318 :   return fd_sysvar_stake_history_view( view, cache->bin_stake_history, desc->data_sz );
     253         414 : }
     254             : 
     255             : #undef TYPES_CALLBACKS

Generated by: LCOV version 1.14