conntrackd: improve handling of external messages

With this patch, a) we set the file descriptors for the
synchronization channels as non-blocking, b) we perform more than
one recv() call per select() signal on the socket and c) we limit
the iteration to the value that EventIterationLimit has set.

Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>

1 files changed, 2 insertions, 1 deletions

diff --git a/src/mcast.c b/src/mcast.c
index 600fdc2..ec11100 100644
--- a/src/mcast.c
+++ b/src/mcast.c
@@ -288,7 +288,8 @@ ssize_t mcast_recv(struct mcast_sock *m, void *data, int size)
 		       (struct sockaddr *)&m->addr,
 		       &sin_size);
 	if (ret == -1) {
-		m->stats.error++;
+		if (errno != EAGAIN)
+			m->stats.error++;
 		return ret;
 	}