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path: root/src/plugins/wireguard/wireguard_input.c
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Diffstat (limited to 'src/plugins/wireguard/wireguard_input.c')
-rw-r--r--src/plugins/wireguard/wireguard_input.c70
1 files changed, 53 insertions, 17 deletions
diff --git a/src/plugins/wireguard/wireguard_input.c b/src/plugins/wireguard/wireguard_input.c
index f4d9132d948..777f0ec54b3 100644
--- a/src/plugins/wireguard/wireguard_input.c
+++ b/src/plugins/wireguard/wireguard_input.c
@@ -343,9 +343,11 @@ wg_input_post_process (vlib_main_t *vm, vlib_buffer_t *b, u16 *next,
bool *is_keepalive)
{
next[0] = WG_INPUT_NEXT_PUNT;
+ noise_keypair_t *kp;
- noise_keypair_t *kp =
- wg_get_active_keypair (&peer->remote, data->receiver_index);
+ if ((kp = wg_get_active_keypair (&peer->remote, data->receiver_index)) ==
+ NULL)
+ return -1;
if (!noise_counter_recv (&kp->kp_ctr, data->counter))
{
@@ -632,6 +634,7 @@ wg_input_inline (vlib_main_t *vm, vlib_node_runtime_t *node,
bool is_keepalive = false;
u32 *peer_idx = NULL;
+ index_t peeri = INDEX_INVALID;
while (n_left_from > 0)
{
@@ -665,9 +668,15 @@ wg_input_inline (vlib_main_t *vm, vlib_node_runtime_t *node,
data->receiver_index);
if (PREDICT_TRUE (peer_idx != NULL))
{
- peer = wg_peer_get (*peer_idx);
+ peeri = *peer_idx;
+ peer = wg_peer_get (peeri);
+ last_rec_idx = data->receiver_index;
+ }
+ else
+ {
+ peer = NULL;
+ last_rec_idx = ~0;
}
- last_rec_idx = data->receiver_index;
}
if (PREDICT_FALSE (!peer_idx))
@@ -739,7 +748,7 @@ wg_input_inline (vlib_main_t *vm, vlib_node_runtime_t *node,
}
else if (PREDICT_FALSE (state_cr == SC_KEEP_KEY_FRESH))
{
- wg_send_handshake_from_mt (*peer_idx, false);
+ wg_send_handshake_from_mt (peeri, false);
goto next;
}
else if (PREDICT_TRUE (state_cr == SC_OK))
@@ -780,7 +789,7 @@ wg_input_inline (vlib_main_t *vm, vlib_node_runtime_t *node,
t->type = header_type;
t->current_length = b[0]->current_length;
t->is_keepalive = is_keepalive;
- t->peer = peer_idx ? *peer_idx : INDEX_INVALID;
+ t->peer = peer_idx ? peeri : INDEX_INVALID;
}
next:
@@ -827,20 +836,37 @@ wg_input_inline (vlib_main_t *vm, vlib_node_runtime_t *node,
{
peer_idx =
wg_index_table_lookup (&wmp->index_table, data->receiver_index);
- peer = wg_peer_get (*peer_idx);
- last_rec_idx = data->receiver_index;
+ if (PREDICT_TRUE (peer_idx != NULL))
+ {
+ peeri = *peer_idx;
+ peer = wg_peer_get (peeri);
+ last_rec_idx = data->receiver_index;
+ }
+ else
+ {
+ peer = NULL;
+ last_rec_idx = ~0;
+ }
}
- if (PREDICT_FALSE (wg_input_post_process (vm, b[0], data_next, peer,
- data, &is_keepalive) < 0))
- goto trace;
+ if (PREDICT_TRUE (peer != NULL))
+ {
+ if (PREDICT_FALSE (wg_input_post_process (vm, b[0], data_next, peer,
+ data, &is_keepalive) < 0))
+ goto trace;
+ }
+ else
+ {
+ data_next[0] = WG_INPUT_NEXT_PUNT;
+ goto trace;
+ }
if (PREDICT_FALSE (peer_idx && (last_peer_time_idx != peer_idx)))
{
if (PREDICT_FALSE (
!ip46_address_is_equal (&peer->dst.addr, &out_src_ip) ||
peer->dst.port != out_udp_src_port))
- wg_peer_update_endpoint_from_mt (*peer_idx, &out_src_ip,
+ wg_peer_update_endpoint_from_mt (peeri, &out_src_ip,
out_udp_src_port);
wg_timers_any_authenticated_packet_received_opt (peer, time);
wg_timers_any_authenticated_packet_traversal (peer);
@@ -860,7 +886,7 @@ wg_input_inline (vlib_main_t *vm, vlib_node_runtime_t *node,
t->type = header_type;
t->current_length = b[0]->current_length;
t->is_keepalive = is_keepalive;
- t->peer = peer_idx ? *peer_idx : INDEX_INVALID;
+ t->peer = peer_idx ? peeri : INDEX_INVALID;
}
b += 1;
@@ -922,6 +948,7 @@ wg_input_post (vlib_main_t *vm, vlib_node_runtime_t *node, vlib_frame_t *frame,
wg_peer_t *peer = NULL;
u32 *peer_idx = NULL;
u32 *last_peer_time_idx = NULL;
+ index_t peeri = INDEX_INVALID;
u32 last_rec_idx = ~0;
f64 time = clib_time_now (&vm->clib_time) + vm->time_offset;
@@ -955,8 +982,17 @@ wg_input_post (vlib_main_t *vm, vlib_node_runtime_t *node, vlib_frame_t *frame,
peer_idx =
wg_index_table_lookup (&wmp->index_table, data->receiver_index);
- peer = wg_peer_get (*peer_idx);
- last_rec_idx = data->receiver_index;
+ if (PREDICT_TRUE (peer_idx != NULL))
+ {
+ peeri = *peer_idx;
+ peer = wg_peer_get (peeri);
+ last_rec_idx = data->receiver_index;
+ }
+ else
+ {
+ peer = NULL;
+ last_rec_idx = ~0;
+ }
}
if (PREDICT_TRUE (peer != NULL))
@@ -976,7 +1012,7 @@ wg_input_post (vlib_main_t *vm, vlib_node_runtime_t *node, vlib_frame_t *frame,
if (PREDICT_FALSE (
!ip46_address_is_equal (&peer->dst.addr, &out_src_ip) ||
peer->dst.port != out_udp_src_port))
- wg_peer_update_endpoint_from_mt (*peer_idx, &out_src_ip,
+ wg_peer_update_endpoint_from_mt (peeri, &out_src_ip,
out_udp_src_port);
wg_timers_any_authenticated_packet_received_opt (peer, time);
wg_timers_any_authenticated_packet_traversal (peer);
@@ -995,7 +1031,7 @@ wg_input_post (vlib_main_t *vm, vlib_node_runtime_t *node, vlib_frame_t *frame,
wg_input_post_trace_t *t =
vlib_add_trace (vm, node, b[0], sizeof (*t));
t->next = next[0];
- t->peer = peer_idx ? *peer_idx : INDEX_INVALID;
+ t->peer = peer_idx ? peeri : INDEX_INVALID;
}
b += 1;