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| author | Patrick McHardy <kaber@trash.net> | 2009-08-25 17:33:08 +0400 |
|---|---|---|
| committer | Patrick McHardy <kaber@trash.net> | 2009-08-25 17:33:08 +0400 |
| commit | 74f7a6552c8d76ffc5e11eb8d9d6c07238b9ae77 (patch) | |
| tree | 8ab3e8dd361de4d2f11536523aa5f0113272050e /net/ipv6/netfilter | |
| parent | f3abc9b963e004b8c96cd7fbee6fd905f2bfd620 (diff) | |
| download | linux-74f7a6552c8d76ffc5e11eb8d9d6c07238b9ae77.tar.xz | |
netfilter: nf_conntrack: log packets dropped by helpers
Log packets dropped by helpers using the netfilter logging API. This
is useful in combination with nfnetlink_log to analyze those packets
in userspace for debugging.
Signed-off-by: Patrick McHardy <kaber@trash.net>
Diffstat (limited to 'net/ipv6/netfilter')
| -rw-r--r-- | net/ipv6/netfilter/nf_conntrack_l3proto_ipv6.c | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/net/ipv6/netfilter/nf_conntrack_l3proto_ipv6.c b/net/ipv6/netfilter/nf_conntrack_l3proto_ipv6.c index a7f4cd607356..5f2ec208a8c3 100644 --- a/net/ipv6/netfilter/nf_conntrack_l3proto_ipv6.c +++ b/net/ipv6/netfilter/nf_conntrack_l3proto_ipv6.c @@ -27,6 +27,7 @@ #include <net/netfilter/nf_conntrack_l3proto.h> #include <net/netfilter/nf_conntrack_core.h> #include <net/netfilter/ipv6/nf_conntrack_ipv6.h> +#include <net/netfilter/nf_log.h> static bool ipv6_pkt_to_tuple(const struct sk_buff *skb, unsigned int nhoff, struct nf_conntrack_tuple *tuple) @@ -176,8 +177,11 @@ static unsigned int ipv6_confirm(unsigned int hooknum, } ret = helper->help(skb, protoff, ct, ctinfo); - if (ret != NF_ACCEPT) + if (ret != NF_ACCEPT) { + nf_log_packet(NFPROTO_IPV6, hooknum, skb, in, out, NULL, + "nf_ct_%s: dropping packet", helper->name); return ret; + } out: /* We've seen it coming out the other side: confirm it */ return nf_conntrack_confirm(skb); |