diff options
| author | Hans Schillstrom <hans@schillstrom.com> | 2014-02-27 12:57:58 +0100 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2014-03-23 21:38:10 -0700 |
| commit | d1f7dd4e9b53146b6049de3a6b4c2b74472e26e5 (patch) | |
| tree | 5a443bbd92df01dc374c5e9302498ecb5a0bc6f0 | |
| parent | 43800d3eeded6b9016fd16b18cbc62154a3ec31e (diff) | |
ipv6: ipv6_find_hdr restore prev functionality
[ Upstream commit accfe0e356327da5bd53da8852b93fc22de9b5fc ]
The commit 9195bb8e381d81d5a315f911904cdf0cfcc919b8 ("ipv6: improve
ipv6_find_hdr() to skip empty routing headers") broke ipv6_find_hdr().
When a target is specified like IPPROTO_ICMPV6 ipv6_find_hdr()
returns -ENOENT when it's found, not the header as expected.
A part of IPVS is broken and possible also nft_exthdr_eval().
When target is -1 which it is most cases, it works.
This patch exits the do while loop if the specific header is found
so the nexthdr could be returned as expected.
Reported-by: Art -kwaak- van Breemen <ard@telegraafnet.nl>
Signed-off-by: Hans Schillstrom <hans@schillstrom.com>
CC:Ansis Atteka <aatteka@nicira.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| -rw-r--r-- | net/ipv6/exthdrs_core.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/net/ipv6/exthdrs_core.c b/net/ipv6/exthdrs_core.c index c5e83fae4df..51af9d0d019 100644 --- a/net/ipv6/exthdrs_core.c +++ b/net/ipv6/exthdrs_core.c @@ -212,7 +212,7 @@ int ipv6_find_hdr(const struct sk_buff *skb, unsigned int *offset, found = (nexthdr == target); if ((!ipv6_ext_hdr(nexthdr)) || nexthdr == NEXTHDR_NONE) { - if (target < 0) + if (target < 0 || found) break; return -ENOENT; } |