device: clear last handshake timer on ifdown

Otherwise new handshakes might not occur immediately when the interface
goes up and down.

Also initialize peers to having a proper zeroed handshake jiffies.

Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>

1 files changed, 1 insertions, 0 deletions

diff --git a/src/peer.c b/src/peer.c
index 6ff14f4..78ba5b0 100644
--- a/src/peer.c
+++ b/src/peer.c
@@ -52,6 +52,7 @@ struct wireguard_peer *peer_create(struct wireguard_device *wg, const u8 public_
 	skb_queue_head_init(&peer->staged_packet_queue);
 	list_add_tail(&peer->peer_list, &wg->peer_list);
 	pubkey_hashtable_add(&wg->peer_hashtable, peer);
+	peer->last_sent_handshake = get_jiffies_64() - REKEY_TIMEOUT - HZ;
 	pr_debug("%s: Peer %llu created\n", wg->dev->name, peer->internal_id);
 	return peer;
 }