diff options
| author | Fernando Luis Vazquez Cao <fernando@oss.ntt.co.jp> | 2011-05-10 10:00:21 +0200 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@suse.de> | 2011-06-23 15:28:42 -0700 |
| commit | 3f6c2552619fd19afabfc76c48fe4a3d3cf93d0a (patch) | |
| tree | bd17880a90c6b16c5efe37bb4af69542a6478c38 | |
| parent | fd1aa48ee98eb70abeb51f8bbe1700393980f05b (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>
| -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 74ce89260056..5ec637458439 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_target_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))) |