From 20ddbf33277108da86c69bb78890fac09e055627 Mon Sep 17 00:00:00 2001 From: Pablo Neira Ayuso <pablo@netfilter.org> Date: Thu, 29 May 2014 14:33:29 +0200 Subject: udp: bind UDP sender side to same interface of the receiver side Otherwise, the kernel may select a different interface for the client side. Original patch from Michael Griego. While at it, remove some trailing whitespaces. Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org> --- src/udp.c | 8 ++++++-- 1 file changed, 6 insertions(+), 2 deletions(-) diff --git a/src/udp.c b/src/udp.c index ecaa46e..d0a7f5b 100644 --- a/src/udp.c +++ b/src/udp.c @@ -136,14 +136,18 @@ struct udp_sock *udp_client_create(struct udp_conf *conf) m->addr.ipv4.sin_family = AF_INET; m->addr.ipv4.sin_port = htons(conf->port); m->addr.ipv4.sin_addr = conf->client.inet_addr; - m->sockaddr_len = sizeof(struct sockaddr_in); + m->sockaddr_len = sizeof(struct sockaddr_in); break; case AF_INET6: m->addr.ipv6.sin6_family = AF_INET6; m->addr.ipv6.sin6_port = htons(conf->port); memcpy(&m->addr.ipv6.sin6_addr, &conf->client.inet_addr6, sizeof(struct in6_addr)); - m->sockaddr_len = sizeof(struct sockaddr_in6); + m->sockaddr_len = sizeof(struct sockaddr_in6); + /* Bind the sender side to the same interface that we use to + * receive sync messages. + */ + m->addr.ipv6.sin6_scope_id = conf->server.ipv6.scope_id; break; default: ret = -1; -- cgit v1.2.3