diff options
| author | YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org> | 2007-03-18 17:35:57 -0700 |
|---|---|---|
| committer | David S. Miller <davem@sunset.davemloft.net> | 2007-04-25 22:24:16 -0700 |
| commit | 4c6510a738c71ca6b4b7b624a7d0a00acebfd7fb (patch) | |
| tree | d24c3f769fb2947e87f9e25ed33316ad867bea74 | |
| parent | 3fbe070a4293e8ab2d2edb1bc23f1e5220ce61af (diff) | |
[IPV6]: Return correct result for sticky options.
We returned incorrect result with IPV6_RTHDRDSTOPTS, IPV6_RTHDR and
IPV6_DSTOPTS.
Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
| -rw-r--r-- | net/ipv6/ipv6_sockglue.c | 27 |
1 files changed, 23 insertions, 4 deletions
diff --git a/net/ipv6/ipv6_sockglue.c b/net/ipv6/ipv6_sockglue.c index 1cb7a084f0c..eceed09e434 100644 --- a/net/ipv6/ipv6_sockglue.c +++ b/net/ipv6/ipv6_sockglue.c @@ -797,13 +797,32 @@ EXPORT_SYMBOL(compat_ipv6_setsockopt); #endif static int ipv6_getsockopt_sticky(struct sock *sk, struct ipv6_txoptions *opt, - char __user *optval, int len) + int optname, char __user *optval, int len) { struct ipv6_opt_hdr *hdr; - if (!opt || !opt->hopopt) + if (!opt) + return 0; + + switch(optname) { + case IPV6_HOPOPTS: + hdr = opt->hopopt; + break; + case IPV6_RTHDRDSTOPTS: + hdr = opt->dst0opt; + break; + case IPV6_RTHDR: + hdr = (struct ipv6_opt_hdr *)opt->srcrt; + break; + case IPV6_DSTOPTS: + hdr = opt->dst1opt; + break; + default: + return -EINVAL; /* should not happen */ + } + + if (!hdr) return 0; - hdr = opt->hopopt; len = min_t(unsigned int, len, ipv6_optlen(hdr)); if (copy_to_user(optval, hdr, ipv6_optlen(hdr))) @@ -946,7 +965,7 @@ static int do_ipv6_getsockopt(struct sock *sk, int level, int optname, lock_sock(sk); len = ipv6_getsockopt_sticky(sk, np->opt, - optval, len); + optname, optval, len); release_sock(sk); return put_user(len, optlen); } |