diff options
Diffstat (limited to 'tcp.c')
| -rw-r--r-- | tcp.c | 7 |
1 files changed, 4 insertions, 3 deletions
@@ -1826,7 +1826,8 @@ static void tcp_seq_init(const struct ctx *c, struct tcp_tap_conn *conn, .srcport = conn->fport, .dstport = conn->eport, }; - uint32_t ns, seq = 0; + uint64_t hash; + uint32_t ns; if (CONN_V4(conn)) inany_from_af(&aany, AF_INET, &c->ip4.addr); @@ -1834,12 +1835,12 @@ static void tcp_seq_init(const struct ctx *c, struct tcp_tap_conn *conn, inany_from_af(&aany, AF_INET6, &c->ip6.addr); in.dst = aany; - seq = siphash_36b((uint8_t *)&in, c->tcp.hash_secret); + hash = siphash_36b((uint8_t *)&in, c->tcp.hash_secret); /* 32ns ticks, overflows 32 bits every 137s */ ns = (now->tv_sec * 1000000000 + now->tv_nsec) >> 5; - conn->seq_to_tap = seq + ns; + conn->seq_to_tap = ((uint32_t)(hash >> 32) ^ (uint32_t)hash) + ns; } /** |