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path: root/src/vnet/ip/ip4_forward.c
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Diffstat (limited to 'src/vnet/ip/ip4_forward.c')
-rw-r--r--src/vnet/ip/ip4_forward.c30
1 files changed, 24 insertions, 6 deletions
diff --git a/src/vnet/ip/ip4_forward.c b/src/vnet/ip/ip4_forward.c
index 210e8a54396..a05428c047d 100644
--- a/src/vnet/ip/ip4_forward.c
+++ b/src/vnet/ip/ip4_forward.c
@@ -1320,6 +1320,12 @@ ip4_local_check_src (vlib_buffer_t * b, ip4_header_t * ip0,
vnet_buffer (b)->sw_if_index[VLIB_TX] != ~0 ?
vnet_buffer (b)->sw_if_index[VLIB_TX] : vnet_buffer (b)->ip.fib_index;
+ /*
+ * vnet_buffer()->ip.adj_index[VLIB_RX] will be set to the index of the
+ * adjacency for the destination address (the local interface address).
+ * 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_FALSE (last_check->first ||
(last_check->src.as_u32 != ip0->src_address.as_u32)))
{
@@ -1329,8 +1335,9 @@ ip4_local_check_src (vlib_buffer_t * b, ip4_header_t * ip0,
leaf0 = ip4_fib_mtrie_lookup_step (mtrie0, leaf0, &ip0->src_address, 3);
lbi0 = ip4_fib_mtrie_leaf_get_adj_index (leaf0);
+ vnet_buffer (b)->ip.adj_index[VLIB_RX] =
+ vnet_buffer (b)->ip.adj_index[VLIB_TX];
vnet_buffer (b)->ip.adj_index[VLIB_TX] = lbi0;
- vnet_buffer (b)->ip.adj_index[VLIB_RX] = lbi0;
lb0 = load_balance_get (lbi0);
dpo0 = load_balance_get_bucket_i (lb0, 0);
@@ -1360,8 +1367,9 @@ ip4_local_check_src (vlib_buffer_t * b, ip4_header_t * ip0,
}
else
{
+ vnet_buffer (b)->ip.adj_index[VLIB_RX] =
+ vnet_buffer (b)->ip.adj_index[VLIB_TX];
vnet_buffer (b)->ip.adj_index[VLIB_TX] = last_check->lbi;
- vnet_buffer (b)->ip.adj_index[VLIB_RX] = last_check->lbi;
*error0 = last_check->error;
last_check->first = 0;
}
@@ -1392,6 +1400,12 @@ 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;
+ /*
+ * vnet_buffer()->ip.adj_index[VLIB_RX] will be set to the index of the
+ * adjacency for the destination address (the local interface address).
+ * 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_FALSE (not_last_hit))
{
mtrie[0] = &ip4_fib_get (vnet_buffer (b[0])->ip.fib_index)->mtrie;
@@ -1413,11 +1427,13 @@ ip4_local_check_src_x2 (vlib_buffer_t ** b, ip4_header_t ** ip,
lbi[0] = ip4_fib_mtrie_leaf_get_adj_index (leaf[0]);
lbi[1] = ip4_fib_mtrie_leaf_get_adj_index (leaf[1]);
+ vnet_buffer (b[0])->ip.adj_index[VLIB_RX] =
+ vnet_buffer (b[0])->ip.adj_index[VLIB_TX];
vnet_buffer (b[0])->ip.adj_index[VLIB_TX] = lbi[0];
- vnet_buffer (b[0])->ip.adj_index[VLIB_RX] = lbi[0];
+ vnet_buffer (b[1])->ip.adj_index[VLIB_RX] =
+ vnet_buffer (b[1])->ip.adj_index[VLIB_TX];
vnet_buffer (b[1])->ip.adj_index[VLIB_TX] = lbi[1];
- vnet_buffer (b[1])->ip.adj_index[VLIB_RX] = lbi[1];
lb[0] = load_balance_get (lbi[0]);
lb[1] = load_balance_get (lbi[1]);
@@ -1447,11 +1463,13 @@ ip4_local_check_src_x2 (vlib_buffer_t ** b, ip4_header_t ** ip,
}
else
{
+ vnet_buffer (b[0])->ip.adj_index[VLIB_RX] =
+ vnet_buffer (b[0])->ip.adj_index[VLIB_TX];
vnet_buffer (b[0])->ip.adj_index[VLIB_TX] = last_check->lbi;
- vnet_buffer (b[0])->ip.adj_index[VLIB_RX] = last_check->lbi;
+ vnet_buffer (b[1])->ip.adj_index[VLIB_RX] =
+ vnet_buffer (b[1])->ip.adj_index[VLIB_TX];
vnet_buffer (b[1])->ip.adj_index[VLIB_TX] = last_check->lbi;
- vnet_buffer (b[1])->ip.adj_index[VLIB_RX] = last_check->lbi;
error[0] = last_check->error;
error[1] = last_check->error;