diff options
| author | Fernando Luis Vazquez Cao <fernando@oss.ntt.co.jp> | 2011-05-10 10:00:21 +0200 |
|---|---|---|
| committer | Andi Kleen <ak@linux.intel.com> | 2011-08-01 13:54:56 -0700 |
| commit | 68b05c3c9f020650fbb69984eefe780bfec80a69 (patch) | |
| tree | 1f3c5002ced75ce9f3781751c309bcc35f7a9eaa /net | |
| parent | 5ee8f122be3b022ebbfa365c124d541dab5bebbd (diff) | |
netfilter: IPv6: fix DSCP mangle code
commit 1ed2f73d90fb49bcf5704aee7e9084adb882bfc5 upstream.
The mask indicates the bits one wants to zero out, so it needs to be
inverted before applying to the original TOS field.
Signed-off-by: Fernando Luis Vazquez Cao <fernando@oss.ntt.co.jp>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Signed-off-by: Andi Kleen <ak@linux.intel.com>
Diffstat (limited to 'net')
| -rw-r--r-- | net/netfilter/xt_DSCP.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/net/netfilter/xt_DSCP.c b/net/netfilter/xt_DSCP.c index 0a229191e55b..ae8271652efa 100644 --- a/net/netfilter/xt_DSCP.c +++ b/net/netfilter/xt_DSCP.c @@ -99,7 +99,7 @@ tos_tg6(struct sk_buff *skb, const struct xt_action_param *par) u_int8_t orig, nv; orig = ipv6_get_dsfield(iph); - nv = (orig & info->tos_mask) ^ info->tos_value; + nv = (orig & ~info->tos_mask) ^ info->tos_value; if (orig != nv) { if (!skb_make_writable(skb, sizeof(struct iphdr))) |