Line data    Source code

       1             : #ifndef HEADER_fd_src_disco_verify_fd_verify_tile_h
       2             : #define HEADER_fd_src_disco_verify_fd_verify_tile_h
       3             : 
       4             : #include "../tiles.h"
       5             : 
       6          21 : #define FD_TXN_VERIFY_SUCCESS  0
       7          21 : #define FD_TXN_VERIFY_FAILED  -1
       8          15 : #define FD_TXN_VERIFY_DEDUP   -2
       9             : 
      10             : /* fd_verify_in_ctx_t is a context object for each in (producer) mcache
      11             :    connected to the verify tile. */
      12             : 
      13             : typedef struct {
      14             :   fd_wksp_t * mem;
      15             :   ulong       chunk0;
      16             :   ulong       wmark;
      17             : } fd_verify_in_ctx_t;
      18             : 
      19             : typedef struct {
      20             :   /* TODO switch to fd_sha512_batch_t? */
      21             :   fd_sha512_t * sha[ FD_TXN_ACTUAL_SIG_MAX ];
      22             : 
      23             :   int   bundle_failed;
      24             :   ulong bundle_id;
      25             : 
      26             :   ulong round_robin_idx;
      27             :   ulong round_robin_cnt;
      28             : 
      29             :   ulong   tcache_depth;
      30             :   ulong   tcache_map_cnt;
      31             :   ulong * tcache_sync;
      32             :   ulong * tcache_ring;
      33             :   ulong * tcache_map;
      34             : 
      35             :   ulong              in_kind[ 32 ];
      36             :   fd_verify_in_ctx_t in[ 32 ];
      37             : 
      38             :   fd_wksp_t * out_mem;
      39             :   ulong       out_chunk0;
      40             :   ulong       out_wmark;
      41             :   ulong       out_chunk;
      42             : 
      43             :   ulong       hashmap_seed;
      44             : 
      45             :   struct {
      46             :     ulong parse_fail_cnt;
      47             :     ulong verify_fail_cnt;
      48             :     ulong dedup_fail_cnt;
      49             :     ulong bundle_peer_fail_cnt;
      50             :   } metrics;
      51             : } fd_verify_ctx_t;
      52             : 
      53             : static inline int
      54             : fd_txn_verify( fd_verify_ctx_t * ctx,
      55             :                uchar const *     udp_payload,
      56             :                ushort const      payload_sz,
      57             :                fd_txn_t const *  txn,
      58             :                int               dedup,
      59          57 :                ulong *           opt_sig ) {
      60             : 
      61             :   /* We do not want to deref any non-data field from the txn struct more than once */
      62          57 :   uchar  signature_cnt = txn->signature_cnt;
      63          57 :   ushort signature_off = txn->signature_off;
      64          57 :   ushort acct_addr_off = txn->acct_addr_off;
      65          57 :   ushort message_off   = txn->message_off;
      66             : 
      67          57 :   uchar const * signatures = udp_payload + signature_off;
      68          57 :   uchar const * pubkeys = udp_payload + acct_addr_off;
      69          57 :   uchar const * msg = udp_payload + message_off;
      70          57 :   ulong msg_sz = (ulong)payload_sz - message_off;
      71             : 
      72             :   /* The first signature is the transaction id, i.e. a unique identifier.
      73             :      So use this to do a quick dedup of ha traffic. */
      74             : 
      75          57 :   ulong ha_dedup_tag = fd_hash( ctx->hashmap_seed, signatures, 64UL );
      76          57 :   int ha_dup = 0;
      77          57 :   if( FD_LIKELY( dedup ) ) {
      78          48 :     FD_FN_UNUSED ulong tcache_map_idx = 0; /* ignored */
      79          48 :     FD_TCACHE_QUERY( ha_dup, tcache_map_idx, ctx->tcache_map, ctx->tcache_map_cnt, ha_dedup_tag );
      80          48 :     if( FD_UNLIKELY( ha_dup ) ) {
      81          15 :       return FD_TXN_VERIFY_DEDUP;
      82          15 :     }
      83          48 :   }
      84             : 
      85             :   /* Verify signatures */
      86          42 :   int res = fd_ed25519_verify_batch_single_msg( msg, msg_sz, signatures, pubkeys, ctx->sha, signature_cnt );
      87          42 :   if( FD_UNLIKELY( res != FD_ED25519_SUCCESS ) ) {
      88          21 :     return FD_TXN_VERIFY_FAILED;
      89          21 :   }
      90             : 
      91             :   /* Insert into the tcache to dedup ha traffic.
      92             :      The dedup check is repeated to guard against duped txs verifying signatures at the same time */
      93          21 :   if( FD_LIKELY( dedup ) ) {
      94          15 :     FD_TCACHE_INSERT( ha_dup, *ctx->tcache_sync, ctx->tcache_ring, ctx->tcache_depth, ctx->tcache_map, ctx->tcache_map_cnt, ha_dedup_tag );
      95          15 :     if( FD_UNLIKELY( ha_dup ) ) {
      96           0 :       return FD_TXN_VERIFY_DEDUP;
      97           0 :     }
      98          15 :   }
      99             : 
     100          21 :   *opt_sig = ha_dedup_tag;
     101          21 :   return FD_TXN_VERIFY_SUCCESS;
     102          21 : }
     103             : 
     104             : #endif /* HEADER_fd_src_disco_verify_fd_verify_tile_h */