diff options
| author | Al Viro <viro@zeniv.linux.org.uk> | 2020-05-09 21:16:36 -0400 |
|---|---|---|
| committer | Al Viro <viro@zeniv.linux.org.uk> | 2020-05-20 20:31:26 -0400 |
| commit | e9c375fb5edeb550786d1436784db909bf672e9f (patch) | |
| tree | a042092acd06f181fd5dbc8a6fe0b662b77a5313 | |
| parent | 63287de66df11308d239483415d67fe94079f47b (diff) | |
compat_ip{,v6}_setsockopt(): enumerate MCAST_... options explicitly
We want to check if optname is among the MCAST_... ones; do that as
an explicit switch.
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
| -rw-r--r-- | net/ipv4/ip_sockglue.c | 10 | ||||
| -rw-r--r-- | net/ipv6/ipv6_sockglue.c | 10 |
2 files changed, 18 insertions, 2 deletions
diff --git a/net/ipv4/ip_sockglue.c b/net/ipv4/ip_sockglue.c index 8206047d70b6..3c2c6cd3933b 100644 --- a/net/ipv4/ip_sockglue.c +++ b/net/ipv4/ip_sockglue.c @@ -1272,9 +1272,17 @@ int compat_ip_setsockopt(struct sock *sk, int level, int optname, if (level != SOL_IP) return -ENOPROTOOPT; - if (optname >= MCAST_JOIN_GROUP && optname <= MCAST_MSFILTER) + switch (optname) { + case MCAST_JOIN_GROUP: + case MCAST_LEAVE_GROUP: + case MCAST_JOIN_SOURCE_GROUP: + case MCAST_LEAVE_SOURCE_GROUP: + case MCAST_BLOCK_SOURCE: + case MCAST_UNBLOCK_SOURCE: + case MCAST_MSFILTER: return compat_mc_setsockopt(sk, level, optname, optval, optlen, ip_setsockopt); + } err = do_ip_setsockopt(sk, level, optname, optval, optlen); #ifdef CONFIG_NETFILTER diff --git a/net/ipv6/ipv6_sockglue.c b/net/ipv6/ipv6_sockglue.c index a0e50cc57e54..96e3f603c8d8 100644 --- a/net/ipv6/ipv6_sockglue.c +++ b/net/ipv6/ipv6_sockglue.c @@ -973,9 +973,17 @@ int compat_ipv6_setsockopt(struct sock *sk, int level, int optname, if (level != SOL_IPV6) return -ENOPROTOOPT; - if (optname >= MCAST_JOIN_GROUP && optname <= MCAST_MSFILTER) + switch (optname) { + case MCAST_JOIN_GROUP: + case MCAST_LEAVE_GROUP: + case MCAST_JOIN_SOURCE_GROUP: + case MCAST_LEAVE_SOURCE_GROUP: + case MCAST_BLOCK_SOURCE: + case MCAST_UNBLOCK_SOURCE: + case MCAST_MSFILTER: return compat_mc_setsockopt(sk, level, optname, optval, optlen, ipv6_setsockopt); + } err = do_ipv6_setsockopt(sk, level, optname, optval, optlen); #ifdef CONFIG_NETFILTER |