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authorGao feng <gaofeng@cn.fujitsu.com>2013-03-24 23:50:40 +0000
committerPablo Neira Ayuso <pablo@netfilter.org>2013-04-05 20:12:54 +0200
commit30e0c6a6bee24db0166b7ca709277cd693e179f2 (patch)
tree264a13fcbf0d76de9e1b3f076ac7f8b045c6c5d5 /net/ipv4
parentf3c1a44a2208d14b061ad665d9549c9b321f38e5 (diff)
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 <gaofeng@cn.fujitsu.com> Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
Diffstat (limited to 'net/ipv4')
-rw-r--r--net/ipv4/netfilter/ip_tables.c3
-rw-r--r--net/ipv4/netfilter/nf_conntrack_proto_icmp.c8
2 files changed, 6 insertions, 5 deletions
diff --git a/net/ipv4/netfilter/ip_tables.c b/net/ipv4/netfilter/ip_tables.c
index 1b433aac266..e391db1f056 100644
--- a/net/ipv4/netfilter/ip_tables.c
+++ b/net/ipv4/netfilter/ip_tables.c
@@ -258,6 +258,7 @@ static void trace_packet(const struct sk_buff *skb,
const char *hookname, *chainname, *comment;
const struct ipt_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]);
@@ -270,7 +271,7 @@ static void trace_packet(const struct sk_buff *skb,
&chainname, &comment, &rulenum) != 0)
break;
- nf_log_packet(AF_INET, hook, skb, in, out, &trace_loginfo,
+ nf_log_packet(net, AF_INET, hook, skb, in, out, &trace_loginfo,
"TRACE: %s:%s:%s:%u ",
tablename, chainname, comment, rulenum);
}
diff --git a/net/ipv4/netfilter/nf_conntrack_proto_icmp.c b/net/ipv4/netfilter/nf_conntrack_proto_icmp.c
index 5241d997ab7..c2cd63d2d89 100644
--- a/net/ipv4/netfilter/nf_conntrack_proto_icmp.c
+++ b/net/ipv4/netfilter/nf_conntrack_proto_icmp.c
@@ -187,8 +187,8 @@ icmp_error(struct net *net, struct nf_conn *tmpl,
icmph = skb_header_pointer(skb, ip_hdrlen(skb), sizeof(_ih), &_ih);
if (icmph == NULL) {
if (LOG_INVALID(net, IPPROTO_ICMP))
- nf_log_packet(PF_INET, 0, skb, NULL, NULL, NULL,
- "nf_ct_icmp: short packet ");
+ nf_log_packet(net, PF_INET, 0, skb, NULL, NULL,
+ NULL, "nf_ct_icmp: short packet ");
return -NF_ACCEPT;
}
@@ -196,7 +196,7 @@ icmp_error(struct net *net, struct nf_conn *tmpl,
if (net->ct.sysctl_checksum && hooknum == NF_INET_PRE_ROUTING &&
nf_ip_checksum(skb, hooknum, dataoff, 0)) {
if (LOG_INVALID(net, IPPROTO_ICMP))
- nf_log_packet(PF_INET, 0, skb, NULL, NULL, NULL,
+ nf_log_packet(net, PF_INET, 0, skb, NULL, NULL, NULL,
"nf_ct_icmp: bad HW ICMP checksum ");
return -NF_ACCEPT;
}
@@ -209,7 +209,7 @@ icmp_error(struct net *net, struct nf_conn *tmpl,
*/
if (icmph->type > NR_ICMP_TYPES) {
if (LOG_INVALID(net, IPPROTO_ICMP))
- nf_log_packet(PF_INET, 0, skb, NULL, NULL, NULL,
+ nf_log_packet(net, PF_INET, 0, skb, NULL, NULL, NULL,
"nf_ct_icmp: invalid ICMP type ");
return -NF_ACCEPT;
}