diff options
| author | Steve French <sfrench@us.ibm.com> | 2008-04-25 20:20:10 +0000 |
|---|---|---|
| committer | Steve French <sfrench@us.ibm.com> | 2008-04-25 20:20:10 +0000 |
| commit | 404e86e1550cc2c84bb57a372af784585c732f9a (patch) | |
| tree | c0e8e2d61c1b1c79705c0dc9f0f16e35267286e4 /net/ipv6/raw.c | |
| parent | 0206e61b467fde4d7b50f1a64355182a4fd9576b (diff) | |
| parent | b9fa38f75ea7e1f64bc29653ca9758303ce698e4 (diff) | |
Merge branch 'master' of /pub/scm/linux/kernel/git/torvalds/linux-2.6
Diffstat (limited to 'net/ipv6/raw.c')
| -rw-r--r-- | net/ipv6/raw.c | 18 |
1 files changed, 18 insertions, 0 deletions
diff --git a/net/ipv6/raw.c b/net/ipv6/raw.c index 6193b124cbc7..396f0ea11090 100644 --- a/net/ipv6/raw.c +++ b/net/ipv6/raw.c @@ -971,6 +971,19 @@ static int do_rawv6_setsockopt(struct sock *sk, int level, int optname, switch (optname) { case IPV6_CHECKSUM: + if (inet_sk(sk)->num == IPPROTO_ICMPV6 && + level == IPPROTO_IPV6) { + /* + * RFC3542 tells that IPV6_CHECKSUM socket + * option in the IPPROTO_IPV6 level is not + * allowed on ICMPv6 sockets. + * If you want to set it, use IPPROTO_RAW + * level IPV6_CHECKSUM socket option + * (Linux extension). + */ + return -EINVAL; + } + /* You may get strange result with a positive odd offset; RFC2292bis agrees with me. */ if (val > 0 && (val&1)) @@ -1046,6 +1059,11 @@ static int do_rawv6_getsockopt(struct sock *sk, int level, int optname, switch (optname) { case IPV6_CHECKSUM: + /* + * We allow getsockopt() for IPPROTO_IPV6-level + * IPV6_CHECKSUM socket option on ICMPv6 sockets + * since RFC3542 is silent about it. + */ if (rp->checksum == 0) val = -1; else |