diff options
| author | Jason A. Donenfeld <Jason@zx2c4.com> | 2019-05-24 13:45:55 +0200 |
|---|---|---|
| committer | Jason A. Donenfeld <Jason@zx2c4.com> | 2019-05-29 01:23:24 +0200 |
| commit | 417713f678efdb682bedfd1aa678c9fca289de73 (patch) | |
| tree | 81e424a81d317097a7f9fce90b9fbafab81b9dd6 /src/timers.c | |
| parent | f3ab052835f6ffa20bad87ea6f0efdd26b53b2cd (diff) | |
timers: add jitter on ack failure reinitiation
Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
Diffstat (limited to 'src/timers.c')
| -rw-r--r-- | src/timers.c | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/src/timers.c b/src/timers.c index 7614c85..d54d32a 100644 --- a/src/timers.c +++ b/src/timers.c @@ -17,7 +17,8 @@ * not sent one for `KEEPALIVE_TIMEOUT` ms. * * - Timer for initiating new handshake if we have sent a packet but after have - * not received one (even empty) for `(KEEPALIVE_TIMEOUT + REKEY_TIMEOUT)` ms. + * not received one (even empty) for `(KEEPALIVE_TIMEOUT + REKEY_TIMEOUT) + + * jitter` ms. * * - Timer for zeroing out all ephemeral keys after `(REJECT_AFTER_TIME * 3)` ms * if no new keys have been received. @@ -145,7 +146,8 @@ void wg_timers_data_sent(struct wg_peer *peer) { if (!timer_pending(&peer->timer_new_handshake)) mod_peer_timer(peer, &peer->timer_new_handshake, - jiffies + (KEEPALIVE_TIMEOUT + REKEY_TIMEOUT) * HZ); + jiffies + (KEEPALIVE_TIMEOUT + REKEY_TIMEOUT) * HZ + + prandom_u32_max(REKEY_TIMEOUT_JITTER_MAX_JIFFIES)); } /* Should be called after an authenticated data packet is received. */ |