Line data    Source code

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