aboutsummaryrefslogtreecommitdiffstats
path: root/net/ipv6/ipv6_sockglue.c
diff options
context:
space:
mode:
authorYang Hongyang <yanghy@cn.fujitsu.com>2008-08-18 02:21:52 -0400
committerDavid S. Miller <davem@davemloft.net>2008-08-18 02:21:52 -0400
commit13601cd8e44aab332cedff1d6dc10786ec890b7b (patch)
tree8a0477e6b8a958f070db4c35c93b385e478d8a95 /net/ipv6/ipv6_sockglue.c
parent4cf7cb280e4fcfcd7ae7429e17d798d3a44087af (diff)
ipv6: Fix the return interface index when get it while no message is received.
When get receiving interface index while no message is received, the bounded device's index of the socket should be returned. RFC 3542: Issuing getsockopt() for the above options will return the sticky option value i.e., the value set with setsockopt(). If no sticky option value has been set getsockopt() will return the following values: - For the IPV6_PKTINFO option, it will return an in6_pktinfo structure with ipi6_addr being in6addr_any and ipi6_ifindex being zero. Signed-off-by: Yang Hongyang <yanghy@cn.fujitsu.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/ipv6/ipv6_sockglue.c')
-rw-r--r--net/ipv6/ipv6_sockglue.c4
1 files changed, 2 insertions, 2 deletions
diff --git a/net/ipv6/ipv6_sockglue.c b/net/ipv6/ipv6_sockglue.c
index 741cfcd96f88..4e5eac301f91 100644
--- a/net/ipv6/ipv6_sockglue.c
+++ b/net/ipv6/ipv6_sockglue.c
@@ -911,7 +911,7 @@ static int do_ipv6_getsockopt(struct sock *sk, int level, int optname,
911 } else { 911 } else {
912 if (np->rxopt.bits.rxinfo) { 912 if (np->rxopt.bits.rxinfo) {
913 struct in6_pktinfo src_info; 913 struct in6_pktinfo src_info;
914 src_info.ipi6_ifindex = np->mcast_oif; 914 src_info.ipi6_ifindex = np->mcast_oif ? np->mcast_oif : sk->sk_bound_dev_if;
915 ipv6_addr_copy(&src_info.ipi6_addr, &np->daddr); 915 ipv6_addr_copy(&src_info.ipi6_addr, &np->daddr);
916 put_cmsg(&msg, SOL_IPV6, IPV6_PKTINFO, sizeof(src_info), &src_info); 916 put_cmsg(&msg, SOL_IPV6, IPV6_PKTINFO, sizeof(src_info), &src_info);
917 } 917 }
@@ -921,7 +921,7 @@ static int do_ipv6_getsockopt(struct sock *sk, int level, int optname,
921 } 921 }
922 if (np->rxopt.bits.rxoinfo) { 922 if (np->rxopt.bits.rxoinfo) {
923 struct in6_pktinfo src_info; 923 struct in6_pktinfo src_info;
924 src_info.ipi6_ifindex = np->mcast_oif; 924 src_info.ipi6_ifindex = np->mcast_oif ? np->mcast_oif : sk->sk_bound_dev_if;
925 ipv6_addr_copy(&src_info.ipi6_addr, &np->daddr); 925 ipv6_addr_copy(&src_info.ipi6_addr, &np->daddr);
926 put_cmsg(&msg, SOL_IPV6, IPV6_2292PKTINFO, sizeof(src_info), &src_info); 926 put_cmsg(&msg, SOL_IPV6, IPV6_2292PKTINFO, sizeof(src_info), &src_info);
927 } 927 }