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| author | YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org> | 2008-06-12 03:14:51 +0900 |
|---|---|---|
| committer | YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org> | 2008-06-12 09:19:09 +0900 |
| commit | 28d4488216645cd71402925cffde9528b0cfdb7e (patch) | |
| tree | c382b026e6c480827f0c539e3d2dcf3943389347 /net | |
| parent | e8766fc86b34d44a8c55a2f9d71da69e091b1ca4 (diff) | |
| download | linux-28d4488216645cd71402925cffde9528b0cfdb7e.tar.gz linux-28d4488216645cd71402925cffde9528b0cfdb7e.tar.bz2 linux-28d4488216645cd71402925cffde9528b0cfdb7e.zip | |
ipv6: Check IPV6_MULTICAST_LOOP option value.
Only 0 and 1 are valid for IPV6_MULTICAST_LOOP socket option,
and we should return an error of EINVAL otherwise, per RFC3493.
Based on patch from Shan Wei <shanwei@cn.fujitsu.com>.
Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
Diffstat (limited to 'net')
| -rw-r--r-- | net/ipv6/ipv6_sockglue.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/net/ipv6/ipv6_sockglue.c b/net/ipv6/ipv6_sockglue.c index ce794d6acb70..9a3697172d5e 100644 --- a/net/ipv6/ipv6_sockglue.c +++ b/net/ipv6/ipv6_sockglue.c @@ -458,6 +458,8 @@ done: case IPV6_MULTICAST_LOOP: if (optlen < sizeof(int)) goto e_inval; + if (val != valbool) + goto e_inval; np->mc_loop = valbool; retv = 0; break; |