[nf PATCH RFC] net: nf_tables: Support auto-loading inet family nat chain

[Phil Sutter <phil@nwl.cc>]

Trying to create an inet family nat chain would not cause
nft_chain_nat.ko module auto-load due to missing module alias.

The family is actually NFPROTO_INET which happens to be the same
numerical value as AF_UNIX.

Signed-off-by: Phil Sutter <phil@nwl.cc>
---
This is obviously a hack to illustrate the problem and show a working
solution. I'm not sure what a real fix would look like - maybe nf_tables
should internally use NFPROTO_* defines instead of AF_* ones? Maybe it
should translate NFPROTO_INET into AF_UNSPEC?
---
 net/netfilter/nft_chain_nat.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/net/netfilter/nft_chain_nat.c b/net/netfilter/nft_chain_nat.c
index 2f89bde3c61cb..d3bf4a297c655 100644
--- a/net/netfilter/nft_chain_nat.c
+++ b/net/netfilter/nft_chain_nat.c
@@ -142,3 +142,6 @@ MODULE_ALIAS_NFT_CHAIN(AF_INET, "nat");
 #ifdef CONFIG_NF_TABLES_IPV6
 MODULE_ALIAS_NFT_CHAIN(AF_INET6, "nat");
 #endif
+#ifdef CONFIG_NF_TABLES_INET
+MODULE_ALIAS_NFT_CHAIN(AF_UNIX, "nat");
+#endif
-- 
2.22.0