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authorPablo Neira Ayuso <pablo@netfilter.org>2008-10-14 11:58:31 -0700
committerDavid S. Miller <davem@davemloft.net>2008-10-14 11:58:31 -0700
commite6a7d3c04f8fe49099521e6dc9a46b0272381f2f (patch)
tree4717fcfe05549d39c9281b3b23310b775ad38d16 /include/linux/netfilter/nfnetlink.h
parentnetfilter: fix ebtables dependencies (diff)
downloadlinux-dev-e6a7d3c04f8fe49099521e6dc9a46b0272381f2f.tar.xz
linux-dev-e6a7d3c04f8fe49099521e6dc9a46b0272381f2f.zip
netfilter: ctnetlink: remove bogus module dependency between ctnetlink and nf_nat
This patch removes the module dependency between ctnetlink and nf_nat by means of an indirect call that is initialized when nf_nat is loaded. Now, nf_conntrack_netlink only requires nf_conntrack and nfnetlink. This patch puts nfnetlink_parse_nat_setup_hook into the nf_conntrack_core to avoid dependencies between ctnetlink, nf_conntrack_ipv4 and nf_conntrack_ipv6. This patch also introduces the function ctnetlink_change_nat that is only invoked from the creation path. Actually, the nat handling cannot be invoked from the update path since this is not allowed. By introducing this function, we remove the useless nat handling in the update path and we avoid deadlock-prone code. This patch also adds the required EAGAIN logic for nfnetlink. Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org> Signed-off-by: Patrick McHardy <kaber@trash.net> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'include/linux/netfilter/nfnetlink.h')
-rw-r--r--include/linux/netfilter/nfnetlink.h3
1 files changed, 3 insertions, 0 deletions
diff --git a/include/linux/netfilter/nfnetlink.h b/include/linux/netfilter/nfnetlink.h
index 0d8424f76899..7d8e0455ccac 100644
--- a/include/linux/netfilter/nfnetlink.h
+++ b/include/linux/netfilter/nfnetlink.h
@@ -78,6 +78,9 @@ extern int nfnetlink_send(struct sk_buff *skb, u32 pid, unsigned group,
int echo);
extern int nfnetlink_unicast(struct sk_buff *skb, u_int32_t pid, int flags);
+extern void nfnl_lock(void);
+extern void nfnl_unlock(void);
+
#define MODULE_ALIAS_NFNL_SUBSYS(subsys) \
MODULE_ALIAS("nfnetlink-subsys-" __stringify(subsys))