@@ -43,6 +43,15 @@ enum nfnl_hook_chain_info_attributes {
};
#define NFNLA_HOOK_INFO_MAX (__NFNLA_HOOK_INFO_MAX - 1)
+enum nfnl_hook_chain_desc_attributes {
+ NFNLA_CHAIN_UNSPEC,
+ NFNLA_CHAIN_TABLE,
+ NFNLA_CHAIN_FAMILY,
+ NFNLA_CHAIN_NAME,
+ __NFNLA_CHAIN_MAX,
+};
+#define NFNLA_CHAIN_MAX (__NFNLA_CHAIN_MAX - 1)
+
/**
* enum nfnl_hook_chaintype - chain type
*
@@ -89,11 +89,15 @@ static int nfnl_hook_put_nft_chain_info(struct sk_buff *nlskb,
if (!nest2)
goto cancel_nest;
- ret = nla_put_string(nlskb, NFTA_CHAIN_TABLE, chain->table->name);
+ ret = nla_put_string(nlskb, NFNLA_CHAIN_TABLE, chain->table->name);
if (ret)
goto cancel_nest;
- ret = nla_put_string(nlskb, NFTA_CHAIN_NAME, chain->name);
+ ret = nla_put_string(nlskb, NFNLA_CHAIN_NAME, chain->name);
+ if (ret)
+ goto cancel_nest;
+
+ ret = nla_put_u8(nlskb, NFNLA_CHAIN_FAMILY, chain->table->family);
if (ret)
goto cancel_nest;
The family is relevant for pseudo-families like NFPROTO_INET otherwise the user needs to rely on the hook function name to differentiate it from NFPROTO_IPV4 and NFPROTO_IPV6 names. Add nfnl_hook_chain_desc_attributes instead of using the existing NFTA_CHAIN_* attributes, since these do not provide a family number. Fixes: e2cf17d3774c ("netfilter: add new hook nfnl subsystem") Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org> --- include/uapi/linux/netfilter/nfnetlink_hook.h | 9 +++++++++ net/netfilter/nfnetlink_hook.c | 8 ++++++-- 2 files changed, 15 insertions(+), 2 deletions(-)