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| author |   Jason A. Donenfeld <Jason@zx2c4.com> | 2020-02-13 14:44:06 +0100 |
|---|---|---|
| committer | Jason A. Donenfeld <Jason@zx2c4.com> | 2020-02-13 14:49:37 +0100 |
| commit | bfde89418a6d1adb2f6ba487ccd9458583227264 (patch) | |
| tree | 7dcbb4292e59083f5a317168afcade834c40d10c | |
| parent | netns: ensure that icmp src address is correct with nat (diff) | |
| download | wireguard-linux-compat-bfde89418a6d1adb2f6ba487ccd9458583227264.tar.xz wireguard-linux-compat-bfde89418a6d1adb2f6ba487ccd9458583227264.zip | |
receive: reset last_under_load to zero
This is a small optimization that prevents more expensive comparisons
from happening when they are no longer necessary, by clearing the
last_under_load variable whenever we wind up in a state where we were
under load but we no longer are.
Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
Suggested-by: Matt Dunwoodie <ncon@noconroy.net>
| -rw-r--r-- | src/receive.c | 7 |
1 files changed, 5 insertions, 2 deletions
diff --git a/src/receive.c b/src/receive.c index e00f0f4..a94fcd7 100644 --- a/src/receive.c +++ b/src/receive.c @@ -119,10 +119,13 @@ static void wg_receive_handshake_packet(struct wg_device *wg, under_load = skb_queue_len(&wg->incoming_handshakes) >= MAX_QUEUED_INCOMING_HANDSHAKES / 8; - if (under_load) + if (under_load) { last_under_load = ktime_get_coarse_boottime_ns(); - else if (last_under_load) + } else if (last_under_load) { under_load = !wg_birthdate_has_expired(last_under_load, 1); + if (!under_load) + last_under_load = 0; + } mac_state = wg_cookie_validate_packet(&wg->cookie_checker, skb, under_load); if ((under_load && mac_state == VALID_MAC_WITH_COOKIE) || |