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authorYang Hongyang <yanghy@cn.fujitsu.com>2008-12-16 02:07:45 -0800
committerDavid S. Miller <davem@davemloft.net>2008-12-16 02:07:45 -0800
commitf250dcdac111a8369220b8e192eae6c56dc1098a (patch)
treecf42e186985643e9c7fbb7c3c3e3fb18d174874b
parentb24a2516d10751d7ed5afb58420df25370c9dffb (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 the value seted with setsockopt() 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>
-rw-r--r--net/ipv6/ipv6_sockglue.c12
1 files changed, 8 insertions, 4 deletions
diff --git a/net/ipv6/ipv6_sockglue.c b/net/ipv6/ipv6_sockglue.c
index 0feaee38bc3..eeeaad2e8b5 100644
--- a/net/ipv6/ipv6_sockglue.c
+++ b/net/ipv6/ipv6_sockglue.c
@@ -938,8 +938,10 @@ static int do_ipv6_getsockopt(struct sock *sk, int level, int optname,
} else {
if (np->rxopt.bits.rxinfo) {
struct in6_pktinfo src_info;
- src_info.ipi6_ifindex = np->mcast_oif ? np->mcast_oif : sk->sk_bound_dev_if;
- ipv6_addr_copy(&src_info.ipi6_addr, &np->daddr);
+ src_info.ipi6_ifindex = np->mcast_oif ? np->mcast_oif :
+ np->sticky_pktinfo.ipi6_ifindex;
+ np->mcast_oif? ipv6_addr_copy(&src_info.ipi6_addr, &np->daddr) :
+ ipv6_addr_copy(&src_info.ipi6_addr, &(np->sticky_pktinfo.ipi6_addr));
put_cmsg(&msg, SOL_IPV6, IPV6_PKTINFO, sizeof(src_info), &src_info);
}
if (np->rxopt.bits.rxhlim) {
@@ -948,8 +950,10 @@ static int do_ipv6_getsockopt(struct sock *sk, int level, int optname,
}
if (np->rxopt.bits.rxoinfo) {
struct in6_pktinfo src_info;
- src_info.ipi6_ifindex = np->mcast_oif ? np->mcast_oif : sk->sk_bound_dev_if;
- ipv6_addr_copy(&src_info.ipi6_addr, &np->daddr);
+ src_info.ipi6_ifindex = np->mcast_oif ? np->mcast_oif :
+ np->sticky_pktinfo.ipi6_ifindex;
+ np->mcast_oif? ipv6_addr_copy(&src_info.ipi6_addr, &np->daddr) :
+ ipv6_addr_copy(&src_info.ipi6_addr, &(np->sticky_pktinfo.ipi6_addr));
put_cmsg(&msg, SOL_IPV6, IPV6_2292PKTINFO, sizeof(src_info), &src_info);
}
if (np->rxopt.bits.rxohlim) {