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-rw-r--r--src/plugins/wireguard/wireguard_peer.c69
1 files changed, 66 insertions, 3 deletions
diff --git a/src/plugins/wireguard/wireguard_peer.c b/src/plugins/wireguard/wireguard_peer.c
index b22110af8f6..ef791c669dd 100644
--- a/src/plugins/wireguard/wireguard_peer.c
+++ b/src/plugins/wireguard/wireguard_peer.c
@@ -202,16 +202,76 @@ wg_peer_get_fixup (wg_peer_t *peer, vnet_link_t lt)
return (NULL);
}
+static void
+wg_peer_disable (vlib_main_t *vm, wg_peer_t *peer)
+{
+ index_t peeri = peer - wg_peer_pool;
+
+ wg_timers_stop (peer);
+ wg_peer_update_flags (peeri, WG_PEER_ESTABLISHED, false);
+
+ for (int i = 0; i < WG_N_TIMERS; i++)
+ {
+ peer->timers[i] = ~0;
+ peer->timers_dispatched[i] = 0;
+ }
+ peer->timer_handshake_attempts = 0;
+
+ peer->last_sent_handshake = vlib_time_now (vm) - (REKEY_TIMEOUT + 1);
+ peer->last_sent_packet = 0;
+ peer->last_received_packet = 0;
+ peer->session_derived = 0;
+ peer->rehandshake_started = 0;
+
+ peer->new_handshake_interval_tick = 0;
+ peer->rehandshake_interval_tick = 0;
+
+ peer->timer_need_another_keepalive = false;
+
+ noise_remote_clear (vm, &peer->remote);
+}
+
+static void
+wg_peer_enable (vlib_main_t *vm, wg_peer_t *peer)
+{
+ index_t peeri = peer - wg_peer_pool;
+ wg_if_t *wg_if;
+ u8 public_key[NOISE_PUBLIC_KEY_LEN];
+
+ wg_if = wg_if_get (wg_if_find_by_sw_if_index (peer->wg_sw_if_index));
+ clib_memcpy (public_key, peer->remote.r_public, NOISE_PUBLIC_KEY_LEN);
+
+ noise_remote_init (&peer->remote, peeri, public_key, wg_if->local_idx);
+
+ wg_send_handshake (vm, peer, false);
+ if (peer->persistent_keepalive_interval != 0)
+ {
+ wg_send_keepalive (vm, peer);
+ }
+}
+
walk_rc_t
wg_peer_if_admin_state_change (index_t peeri, void *data)
{
wg_peer_t *peer;
adj_index_t *adj_index;
+ vlib_main_t *vm = vlib_get_main ();
+
peer = wg_peer_get (peeri);
vec_foreach (adj_index, peer->adj_indices)
{
wg_peer_adj_stack (peer, *adj_index);
}
+
+ if (vnet_sw_interface_is_admin_up (vnet_get_main (), peer->wg_sw_if_index))
+ {
+ wg_peer_enable (vm, peer);
+ }
+ else
+ {
+ wg_peer_disable (vm, peer);
+ }
+
return (WALK_CONTINUE);
}
@@ -431,10 +491,13 @@ wg_peer_add (u32 tun_sw_if_index, const u8 public_key[NOISE_PUBLIC_KEY_LEN],
wg_if->local_idx);
cookie_maker_init (&peer->cookie_maker, public_key);
- wg_send_handshake (vm, peer, false);
- if (peer->persistent_keepalive_interval != 0)
+ if (vnet_sw_interface_is_admin_up (vnet_get_main (), tun_sw_if_index))
{
- wg_send_keepalive (vm, peer);
+ wg_send_handshake (vm, peer, false);
+ if (peer->persistent_keepalive_interval != 0)
+ {
+ wg_send_keepalive (vm, peer);
+ }
}
*peer_index = peer - wg_peer_pool;