netfilter: nf_ct_dccp: add missing DCCP protocol changes in event cache

This patch adds the missing protocol state-change event reporting
for DCCP.

$ sudo conntrack -E
    [NEW] dccp     33 240 src=192.168.0.2 dst=192.168.1.2 sport=57040 dport=5001 [UNREPLIED] src=192.168.1.2 dst=192.168.1.100 sport=5001 dport=57040

With this patch:

$ sudo conntrack -E
    [NEW] dccp     33 240 REQUEST src=192.168.0.2 dst=192.168.1.2 sport=57040 dport=5001 [UNREPLIED] src=192.168.1.2 dst=192.168.1.100 sport=5001 dport=57040

Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
Signed-off-by: Patrick McHardy <kaber@trash.net>

diff --git a/net/netfilter/nf_conntrack_proto_dccp.c b/net/netfilter/nf_conntrack_proto_dccp.c
index 8e757dd533966bdfd6c1d0ab8b48334e9bab1af7..aee0d6bea309e969f4dc62604243531d542c8892 100644 (file)
--- a/net/netfilter/nf_conntrack_proto_dccp.c
+++ b/net/netfilter/nf_conntrack_proto_dccp.c
@@ -22,6 +22,7 @@
 #include <linux/netfilter/nfnetlink_conntrack.h>
 #include <net/netfilter/nf_conntrack.h>
 #include <net/netfilter/nf_conntrack_l4proto.h>
+#include <net/netfilter/nf_conntrack_ecache.h>
 #include <net/netfilter/nf_log.h>
 
 static DEFINE_RWLOCK(dccp_lock);
@@ -553,6 +554,9 @@ static int dccp_packet(struct nf_conn *ct, const struct sk_buff *skb,
        ct->proto.dccp.state = new_state;
        write_unlock_bh(&dccp_lock);
 
+       if (new_state != old_state)
+               nf_conntrack_event_cache(IPCT_PROTOINFO, ct);
+
        dn = dccp_pernet(net);
        nf_ct_refresh_acct(ct, ctinfo, skb, dn->dccp_timeout[new_state]);