diff options
| author | Eric Paris <eparis@redhat.com> | 2010-11-16 11:52:38 +0000 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2010-11-17 10:54:34 -0800 |
| commit | da6836500414ae734cd9873c2d553db594f831e9 (patch) | |
| tree | 1661f8ec37787e77e604a4f26574d48c57016ed4 /net/netfilter | |
| parent | 37d668004289d202f71dc5bfdadf6c18b34577a2 (diff) | |
netfilter: allow hooks to pass error code back up the stack
SELinux would like to pass certain fatal errors back up the stack. This patch
implements the generic netfilter support for this functionality.
Based-on-patch-by: Patrick McHardy <kaber@trash.net>
Signed-off-by: Eric Paris <eparis@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/netfilter')
| -rw-r--r-- | net/netfilter/core.c | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/net/netfilter/core.c b/net/netfilter/core.c index 85dabb86be6f..32fcbe290c04 100644 --- a/net/netfilter/core.c +++ b/net/netfilter/core.c @@ -173,9 +173,11 @@ next_hook: outdev, &elem, okfn, hook_thresh); if (verdict == NF_ACCEPT || verdict == NF_STOP) { ret = 1; - } else if (verdict == NF_DROP) { + } else if ((verdict & NF_VERDICT_MASK) == NF_DROP) { kfree_skb(skb); - ret = -EPERM; + ret = -(verdict >> NF_VERDICT_BITS); + if (ret == 0) + ret = -EPERM; } else if ((verdict & NF_VERDICT_MASK) == NF_QUEUE) { if (!nf_queue(skb, elem, pf, hook, indev, outdev, okfn, verdict >> NF_VERDICT_BITS)) |