Messages in this thread Patch in this message | | | Date | Tue, 12 Jul 2005 13:58:27 +0200 | From | Patrick McHardy <> | Subject | Re: 2.6.12 netfilter: local packets marked as invalid |
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Daniel Drake wrote: > You'll have to forgive my lack of netfilter knowledge, I set up my firewall > ages ago and haven't really touched it since :)
We decided to revert the responsible change because it caused problems in other areas as well. This patch should fix your problem.
[NETFILTER]: Revert nf_reset change
Revert the nf_reset change that caused so much trouble, drop conntrack references manually before packets are queued to packet sockets.
Signed-off-by: Phil Oester <kernel@linuxace.com> Signed-off-by: Patrick McHardy <kaber@trash.net>
--- commit c64e9fafffd203886f6c57149803f1824febd9bb tree 40a90ab1427c25f7a36109eabd1a53b0a8f144be parent 9fd73bed06eb5cf309e0cb5cdf3249a54fd3ff22 author Phil Oester <kernel@linuxace.com> Mon, 11 Jul 2005 02:04:08 committer Patrick McHardy <kaber@trash.net> Mon, 11 Jul 2005 02:04:08
net/ipv4/ip_output.c | 9 --------- net/ipv4/netfilter/ip_conntrack_standalone.c | 7 +++++++ net/packet/af_packet.c | 6 ++++++ 3 files changed, 13 insertions(+), 9 deletions(-)
diff --git a/net/ipv4/ip_output.c b/net/ipv4/ip_output.c --- a/net/ipv4/ip_output.c +++ b/net/ipv4/ip_output.c @@ -107,7 +107,6 @@ static int ip_dev_loopback_xmit(struct s newskb->pkt_type = PACKET_LOOPBACK; newskb->ip_summed = CHECKSUM_UNNECESSARY; BUG_TRAP(newskb->dst); - nf_reset(newskb); netif_rx(newskb); return 0; } @@ -188,14 +187,6 @@ static inline int ip_finish_output2(stru skb = skb2; } -#ifdef CONFIG_BRIDGE_NETFILTER - /* bridge-netfilter defers calling some IP hooks to the bridge layer - * and still needs the conntrack reference. - */ - if (skb->nf_bridge == NULL) -#endif - nf_reset(skb); - if (hh) { int hh_alen; diff --git a/net/ipv4/netfilter/ip_conntrack_standalone.c b/net/ipv4/netfilter/ip_conntrack_standalone.c --- a/net/ipv4/netfilter/ip_conntrack_standalone.c +++ b/net/ipv4/netfilter/ip_conntrack_standalone.c @@ -432,6 +432,13 @@ static unsigned int ip_conntrack_defrag( const struct net_device *out, int (*okfn)(struct sk_buff *)) { +#if !defined(CONFIG_IP_NF_NAT) && !defined(CONFIG_IP_NF_NAT_MODULE) + /* Previously seen (loopback)? Ignore. Do this before + fragment check. */ + if ((*pskb)->nfct) + return NF_ACCEPT; +#endif + /* Gather fragments. */ if ((*pskb)->nh.iph->frag_off & htons(IP_MF|IP_OFFSET)) { *pskb = ip_ct_gather_frags(*pskb, diff --git a/net/packet/af_packet.c b/net/packet/af_packet.c --- a/net/packet/af_packet.c +++ b/net/packet/af_packet.c @@ -274,6 +274,9 @@ static int packet_rcv_spkt(struct sk_buf dst_release(skb->dst); skb->dst = NULL; + /* drop conntrack reference */ + nf_reset(skb); + spkt = (struct sockaddr_pkt*)skb->cb; skb_push(skb, skb->data-skb->mac.raw); @@ -517,6 +520,9 @@ static int packet_rcv(struct sk_buff *sk dst_release(skb->dst); skb->dst = NULL; + /* drop conntrack reference */ + nf_reset(skb); + spin_lock(&sk->sk_receive_queue.lock); po->stats.tp_packets++; __skb_queue_tail(&sk->sk_receive_queue, skb); | |