diff options
| author | Pablo Neira Ayuso <pablo@netfilter.org> | 2019-07-05 22:59:05 +0200 |
|---|---|---|
| committer | Pablo Neira Ayuso <pablo@netfilter.org> | 2019-07-05 23:50:45 +0200 |
| commit | 9cff126f73a7025bcb0883189b2bed90010a57d4 (patch) | |
| tree | eb475d51454e922f826add62dd57b48074293139 /net | |
| parent | b9c04ae7907f09c5e873e7c9a8feea2ce41e15b3 (diff) | |
netfilter: nf_tables: __nft_expr_type_get() selects specific family type
In case that there are two types, prefer the family specify extension.
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
Diffstat (limited to 'net')
| -rw-r--r-- | net/netfilter/nf_tables_api.c | 13 |
1 files changed, 8 insertions, 5 deletions
diff --git a/net/netfilter/nf_tables_api.c b/net/netfilter/nf_tables_api.c index 582f4e475d67..5e97bf64975a 100644 --- a/net/netfilter/nf_tables_api.c +++ b/net/netfilter/nf_tables_api.c @@ -2009,14 +2009,17 @@ EXPORT_SYMBOL_GPL(nft_unregister_expr); static const struct nft_expr_type *__nft_expr_type_get(u8 family, struct nlattr *nla) { - const struct nft_expr_type *type; + const struct nft_expr_type *type, *candidate = NULL; list_for_each_entry(type, &nf_tables_expressions, list) { - if (!nla_strcmp(nla, type->name) && - (!type->family || type->family == family)) - return type; + if (!nla_strcmp(nla, type->name)) { + if (!type->family && !candidate) + candidate = type; + else if (type->family == family) + candidate = type; + } } - return NULL; + return candidate; } #ifdef CONFIG_MODULES |