Line data    Source code

       1             : #include "fd_prog_load.h"
       2             : #include "../runtime/program/fd_bpf_loader_program.h"
       3             : #include "../runtime/sysvar/fd_sysvar_epoch_schedule.h"
       4             : #include "../runtime/fd_system_ids.h"
       5             : #include "../../ballet/sbpf/fd_sbpf_loader.h"
       6             : 
       7             : static fd_prog_info_t *
       8             : fd_prog_info_v3( fd_prog_info_t *         out,
       9         965 :                  fd_acc_t const * ro ) {
      10         965 :   if( FD_UNLIKELY( ro->data_len<PROGRAMDATA_METADATA_SIZE ) ) {
      11           0 :     FD_LOG_WARNING(( "program data account is too small" ));
      12           0 :     return NULL;
      13           0 :   }
      14         965 :   fd_bpf_state_t state;
      15         965 :   if( FD_UNLIKELY( fd_bpf_state_decode( &state, ro->data, ro->data_len ) ) ) {
      16           0 :     FD_LOG_WARNING(( "program data account is invalid" ));
      17           0 :     return NULL;
      18           0 :   }
      19         965 :   if( FD_UNLIKELY( state.discriminant!=FD_BPF_STATE_PROGRAM_DATA ) ) {
      20           0 :     FD_LOG_WARNING(( "loader v3 account is not a program data account" ));
      21           0 :     return NULL;
      22           0 :   }
      23             : 
      24         965 :   *out = (fd_prog_info_t) {
      25         965 :     .elf_off = PROGRAMDATA_METADATA_SIZE,
      26         965 :     .elf_sz  = ro->data_len - PROGRAMDATA_METADATA_SIZE,
      27         965 :     .deploy_slot = state.inner.program_data.slot
      28         965 :   };
      29         965 :   return out;
      30         965 : }
      31             : 
      32             : static fd_prog_info_t *
      33             : fd_prog_info_v1( fd_prog_info_t * out,
      34        3835 :                  fd_acc_t const * acc ) {
      35        3835 :   *out = (fd_prog_info_t) {
      36        3835 :     .elf_off = 0UL,
      37        3835 :     .elf_sz  = acc->data_len,
      38        3835 :     .deploy_slot = 0UL
      39        3835 :   };
      40        3835 :   return out;
      41        3835 : }
      42             : 
      43             : /* https://github.com/anza-xyz/agave/blob/v4.0.0-beta.5/svm/src/program_loader.rs#L29 */
      44             : fd_prog_info_t *
      45             : fd_prog_info( fd_prog_info_t * out,
      46        4800 :               fd_acc_t const * acc ){
      47        4800 :   fd_pubkey_t const * program_owner = (fd_pubkey_t const*)acc->owner;
      48        4800 :   if( fd_pubkey_eq( program_owner, &fd_solana_bpf_loader_upgradeable_program_id ) ) {
      49         965 :     return fd_prog_info_v3( out, acc );
      50        3835 :   } else if( fd_pubkey_eq( program_owner, &fd_solana_bpf_loader_program_id ) ||
      51        3835 :              fd_pubkey_eq( program_owner, &fd_solana_bpf_loader_deprecated_program_id ) ) {
      52        3835 :     return fd_prog_info_v1( out, acc );
      53        3835 :   } else {
      54           0 :     FD_BASE58_ENCODE_32_BYTES( acc->pubkey, addr_b58  );
      55           0 :     FD_BASE58_ENCODE_32_BYTES( program_owner->key, owner_b58 );
      56           0 :     FD_LOG_WARNING(( "unsupported program data account (address=%s program_owner=%s)", addr_b58, owner_b58 ));
      57           0 :     return NULL;
      58           0 :   }
      59        4800 : }
      60             : 
      61             : FD_FN_PURE fd_prog_versions_t
      62             : fd_prog_versions( fd_features_t const * features,
      63        6889 :                   ulong                 slot ) {
      64        6889 :   int disable_v0  = FD_FEATURE_ACTIVE( slot, features, disable_sbpf_v0_execution );
      65        6889 :   int reenable_v0 = FD_FEATURE_ACTIVE( slot, features, reenable_sbpf_v0_execution );
      66        6889 :   int enable_v0   = !disable_v0 || reenable_v0;
      67        6889 :   fd_prog_versions_t v = {0};
      68             :   /* https://github.com/anza-xyz/agave/blob/v4.3.0-beta.0/syscalls/src/lib.rs#L333-L340 */
      69        6889 :   v.min_sbpf_version = enable_v0 ? FD_SBPF_V0 : FD_SBPF_V3;
      70        6889 :   v.max_sbpf_version = FD_SBPF_V3;
      71        6889 :   return v;
      72        6889 : }
      73             : 
      74             : fd_prog_load_env_t *
      75             : fd_prog_load_env_from_bank( fd_prog_load_env_t * env,
      76        4800 :                             fd_bank_t const *    bank ) {
      77        4800 :   fd_features_t const * features     = &bank->f.features;
      78        4800 :   ulong                 feature_slot = 0UL;
      79             : 
      80             : #if FD_PROGCACHE_EB_ALWAYS_INVALIDATE
      81             : 
      82             :   /* Valid for FD_FEATURE_ACTIVE only because activations land on epoch starts. */
      83             :   feature_slot = fd_epoch_slot0( &bank->f.epoch_schedule, bank->f.epoch );
      84             : 
      85             : #else
      86             : 
      87             :   /* Max activation slot <= bank_slot.  Signed so DISABLED (ULONG_MAX) compares
      88             :      as -1 and never wins the max. */
      89        4800 :   long const * f     = (long const *)features->f;
      90        4800 :   long         limit = (long)bank->f.slot;
      91        4800 :   long         acc   = 0L;
      92     1447391 :   for( ulong i=0UL; i<FD_FEATURE_ID_CNT; i++ ) {
      93     1442591 :     long s = f[ i ];
      94     1442591 :     long v = (s<=limit) ? s : 0L; /* a not-yet-active feature must not win */
      95     1442591 :     acc = v>acc ? v : acc;
      96     1442591 :   }
      97        4800 :   feature_slot = (ulong)acc;
      98             : 
      99        4800 : #endif
     100             : 
     101        4800 :   *env = (fd_prog_load_env_t) {
     102        4800 :     .features     = features,
     103        4800 :     .feature_slot = feature_slot
     104        4800 :   };
     105        4800 :   return env;
     106        4800 : }