global: switch from timeval to timespec

This gets us nanoseconds instead of microseconds, which is better, and
we can do this pretty much without freaking out existing userspace,
which doesn't actually make use of the nano/micro seconds field:

zx2c4@thinkpad ~ $ cat a.c
void main()
{
        puts(sizeof(struct timeval) == sizeof(struct timespec) ? "success" : "failure");
}
zx2c4@thinkpad ~ $ gcc a.c -m64 && ./a.out
success
zx2c4@thinkpad ~ $ gcc a.c -m32 && ./a.out
success

This doesn't solve y2038 problem, but timespec64 isn't yet a thing in
userspace.

1 files changed, 1 insertions, 1 deletions

diff --git a/src/peer.h b/src/peer.h
index 49784d1..1e3c1ae 100644
--- a/src/peer.h
+++ b/src/peer.h
@@ -49,7 +49,7 @@ struct wireguard_peer {
 	unsigned int timer_handshake_attempts;
 	unsigned long persistent_keepalive_interval;
 	bool timers_enabled, timer_need_another_keepalive, sent_lastminute_handshake;
-	struct timeval walltime_last_handshake;
+	struct timespec walltime_last_handshake;
 	struct kref refcount;
 	struct rcu_head rcu;
 	struct list_head peer_list;