From 30e0c6a6bee24db0166b7ca709277cd693e179f2 Mon Sep 17 00:00:00 2001 From: Gao feng Date: Sun, 24 Mar 2013 23:50:40 +0000 Subject: netfilter: nf_log: prepare net namespace support for loggers This patch adds netns support to nf_log and it prepares netns support for existing loggers. It is composed of four major changes. 1) nf_log_register has been split to two functions: nf_log_register and nf_log_set. The new nf_log_register is used to globally register the nf_logger and nf_log_set is used for enabling pernet support from nf_loggers. Per netns is not yet complete after this patch, it comes in separate follow up patches. 2) Add net as a parameter of nf_log_bind_pf. Per netns is not yet complete after this patch, it only allows to bind the nf_logger to the protocol family from init_net and it skips other cases. 3) Adapt all nf_log_packet callers to pass netns as parameter. After this patch, this function only works for init_net. 4) Make the sysctl net/netfilter/nf_log pernet. Signed-off-by: Gao feng Signed-off-by: Pablo Neira Ayuso --- net/ipv6/netfilter/ip6_tables.c | 3 ++- net/ipv6/netfilter/nf_conntrack_proto_icmpv6.c | 7 ++++--- 2 files changed, 6 insertions(+), 4 deletions(-) (limited to 'net/ipv6/netfilter') diff --git a/net/ipv6/netfilter/ip6_tables.c b/net/ipv6/netfilter/ip6_tables.c index 341b54ade72c..8861b1ef420e 100644 --- a/net/ipv6/netfilter/ip6_tables.c +++ b/net/ipv6/netfilter/ip6_tables.c @@ -284,6 +284,7 @@ static void trace_packet(const struct sk_buff *skb, const char *hookname, *chainname, *comment; const struct ip6t_entry *iter; unsigned int rulenum = 0; + struct net *net = dev_net(in ? in : out); table_base = private->entries[smp_processor_id()]; root = get_entry(table_base, private->hook_entry[hook]); @@ -296,7 +297,7 @@ static void trace_packet(const struct sk_buff *skb, &chainname, &comment, &rulenum) != 0) break; - nf_log_packet(AF_INET6, hook, skb, in, out, &trace_loginfo, + nf_log_packet(net, AF_INET6, hook, skb, in, out, &trace_loginfo, "TRACE: %s:%s:%s:%u ", tablename, chainname, comment, rulenum); } diff --git a/net/ipv6/netfilter/nf_conntrack_proto_icmpv6.c b/net/ipv6/netfilter/nf_conntrack_proto_icmpv6.c index 24df3dde0076..b3807c5cb888 100644 --- a/net/ipv6/netfilter/nf_conntrack_proto_icmpv6.c +++ b/net/ipv6/netfilter/nf_conntrack_proto_icmpv6.c @@ -131,7 +131,8 @@ static bool icmpv6_new(struct nf_conn *ct, const struct sk_buff *skb, type + 128); nf_ct_dump_tuple_ipv6(&ct->tuplehash[0].tuple); if (LOG_INVALID(nf_ct_net(ct), IPPROTO_ICMPV6)) - nf_log_packet(PF_INET6, 0, skb, NULL, NULL, NULL, + nf_log_packet(nf_ct_net(ct), PF_INET6, 0, skb, NULL, + NULL, NULL, "nf_ct_icmpv6: invalid new with type %d ", type + 128); return false; @@ -203,7 +204,7 @@ icmpv6_error(struct net *net, struct nf_conn *tmpl, icmp6h = skb_header_pointer(skb, dataoff, sizeof(_ih), &_ih); if (icmp6h == NULL) { if (LOG_INVALID(net, IPPROTO_ICMPV6)) - nf_log_packet(PF_INET6, 0, skb, NULL, NULL, NULL, + nf_log_packet(net, PF_INET6, 0, skb, NULL, NULL, NULL, "nf_ct_icmpv6: short packet "); return -NF_ACCEPT; } @@ -211,7 +212,7 @@ icmpv6_error(struct net *net, struct nf_conn *tmpl, if (net->ct.sysctl_checksum && hooknum == NF_INET_PRE_ROUTING && nf_ip6_checksum(skb, hooknum, dataoff, IPPROTO_ICMPV6)) { if (LOG_INVALID(net, IPPROTO_ICMPV6)) - nf_log_packet(PF_INET6, 0, skb, NULL, NULL, NULL, + nf_log_packet(net, PF_INET6, 0, skb, NULL, NULL, NULL, "nf_ct_icmpv6: ICMPv6 checksum failed "); return -NF_ACCEPT; } -- cgit v1.2.3