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| author | Yang Hongyang <yanghy@cn.fujitsu.com> | 2008-08-17 23:21:52 -0700 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2008-08-17 23:21:52 -0700 |
| commit | 13601cd8e44aab332cedff1d6dc10786ec890b7b (patch) | |
| tree | 8a0477e6b8a958f070db4c35c93b385e478d8a95 /net | |
| parent | 4cf7cb280e4fcfcd7ae7429e17d798d3a44087af (diff) | |
| download | linux-13601cd8e44aab332cedff1d6dc10786ec890b7b.tar.gz linux-13601cd8e44aab332cedff1d6dc10786ec890b7b.tar.bz2 linux-13601cd8e44aab332cedff1d6dc10786ec890b7b.zip | |
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')
| -rw-r--r-- | net/ipv6/ipv6_sockglue.c | 4 |
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, } else { if (np->rxopt.bits.rxinfo) { struct in6_pktinfo src_info; - src_info.ipi6_ifindex = np->mcast_oif; + src_info.ipi6_ifindex = np->mcast_oif ? np->mcast_oif : sk->sk_bound_dev_if; ipv6_addr_copy(&src_info.ipi6_addr, &np->daddr); put_cmsg(&msg, SOL_IPV6, IPV6_PKTINFO, sizeof(src_info), &src_info); } @@ -921,7 +921,7 @@ 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; + src_info.ipi6_ifindex = np->mcast_oif ? np->mcast_oif : sk->sk_bound_dev_if; ipv6_addr_copy(&src_info.ipi6_addr, &np->daddr); put_cmsg(&msg, SOL_IPV6, IPV6_2292PKTINFO, sizeof(src_info), &src_info); } |