diff options
Diffstat (limited to 'src/vnet/ip')
| -rw-r--r-- | src/vnet/ip/ip4_forward.c | 13 |
1 files changed, 11 insertions, 2 deletions
diff --git a/src/vnet/ip/ip4_forward.c b/src/vnet/ip/ip4_forward.c index 3556d357f50..c1bfc7d4ce5 100644 --- a/src/vnet/ip/ip4_forward.c +++ b/src/vnet/ip/ip4_forward.c @@ -1517,7 +1517,9 @@ ip4_local_set_next_and_error (vlib_node_runtime_t * error_node, typedef struct { + /* The src and fib-index together determine if packet n is the same as n-1 */ ip4_address_t src; + u32 fib_index; u32 lbi; u8 error; u8 first; @@ -1551,7 +1553,8 @@ ip4_local_check_src (vlib_buffer_t *b, ip4_header_t *ip0, * vnet_buffer()->ip.adj_index[VLIB_TX] will be set to the index of the * adjacency for the source address (the remote sender's address) */ - if (PREDICT_TRUE (last_check->src.as_u32 != ip0->src_address.as_u32) || + if (PREDICT_TRUE ((last_check->src.as_u32 != ip0->src_address.as_u32)) || + (last_check->fib_index != vnet_buffer (b)->ip.fib_index) || last_check->first) { lbi0 = ip4_fib_forwarding_lookup (vnet_buffer (b)->ip.fib_index, @@ -1587,6 +1590,7 @@ ip4_local_check_src (vlib_buffer_t *b, ip4_header_t *ip0, last_check->lbi = lbi0; last_check->error = *error0; last_check->first = 0; + last_check->fib_index = vnet_buffer (b)->ip.fib_index; } else { @@ -1621,6 +1625,9 @@ ip4_local_check_src_x2 (vlib_buffer_t **b, ip4_header_t **ip, vnet_buffer (b[1])->sw_if_index[VLIB_TX] : vnet_buffer (b[1])->ip.fib_index; + not_last_hit |= vnet_buffer (b[0])->ip.fib_index ^ last_check->fib_index; + not_last_hit |= vnet_buffer (b[1])->ip.fib_index ^ last_check->fib_index; + if (is_receive_dpo) { const receive_dpo_t *rd0, *rd1; @@ -1683,6 +1690,7 @@ ip4_local_check_src_x2 (vlib_buffer_t **b, ip4_header_t **ip, last_check->lbi = lbi[1]; last_check->error = error[1]; last_check->first = 0; + last_check->fib_index = vnet_buffer (b[1])->ip.fib_index; } else { @@ -1752,10 +1760,11 @@ ip4_local_inline (vlib_main_t *vm, vlib_node_runtime_t *node, * member to make sure the .lbi is initialised for the first * packet. */ - .src = {.as_u32 = 0}, + .src = { .as_u32 = 0 }, .lbi = ~0, .error = IP4_ERROR_UNKNOWN_PROTOCOL, .first = 1, + .fib_index = 0, }; from = vlib_frame_vector_args (frame); |