target/linux/generic/backport-4.14/332-v4.16-netfilter-nf_tables-remove-struct-nft_af_info-parame.patch

   1 From: Pablo Neira Ayuso <pablo@netfilter.org>
   2 Date: Tue, 19 Dec 2017 13:40:22 +0100
   3 Subject: [PATCH] netfilter: nf_tables: remove struct nft_af_info parameter in
   4  nf_tables_chain_type_lookup()
   5
   6 Pass family number instead, this comes in preparation for the removal of
   7 struct nft_af_info.
   8
   9 Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
  10 ---
  11
  12 --- a/net/netfilter/nf_tables_api.c
  13 +++ b/net/netfilter/nf_tables_api.c
  14 @@ -452,7 +452,7 @@ static inline u64 nf_tables_alloc_handle
  15  static const struct nf_chain_type *chain_type[NFPROTO_NUMPROTO][NFT_CHAIN_T_MAX];
  16
  17  static const struct nf_chain_type *
  18 -__nf_tables_chain_type_lookup(int family, const struct nlattr *nla)
  19 +__nf_tables_chain_type_lookup(const struct nlattr *nla, u8 family)
  20  {
  21         int i;
  22
  23 @@ -465,22 +465,20 @@ __nf_tables_chain_type_lookup(int family
  24  }
  25
  26  static const struct nf_chain_type *
  27 -nf_tables_chain_type_lookup(const struct nft_af_info *afi,
  28 -                           const struct nlattr *nla,
  29 -                           bool autoload)
  30 +nf_tables_chain_type_lookup(const struct nlattr *nla, u8 family, bool autoload)
  31  {
  32         const struct nf_chain_type *type;
  33
  34 -       type = __nf_tables_chain_type_lookup(afi->family, nla);
  35 +       type = __nf_tables_chain_type_lookup(nla, family);
  36         if (type != NULL)
  37                 return type;
  38  #ifdef CONFIG_MODULES
  39         if (autoload) {
  40                 nfnl_unlock(NFNL_SUBSYS_NFTABLES);
  41 -               request_module("nft-chain-%u-%.*s", afi->family,
  42 +               request_module("nft-chain-%u-%.*s", family,
  43                                nla_len(nla), (const char *)nla_data(nla));
  44                 nfnl_lock(NFNL_SUBSYS_NFTABLES);
  45 -               type = __nf_tables_chain_type_lookup(afi->family, nla);
  46 +               type = __nf_tables_chain_type_lookup(nla, family);
  47                 if (type != NULL)
  48                         return ERR_PTR(-EAGAIN);
  49         }
  50 @@ -1356,8 +1354,8 @@ static int nft_chain_parse_hook(struct n
  51
  52         type = chain_type[afi->family][NFT_CHAIN_T_DEFAULT];
  53         if (nla[NFTA_CHAIN_TYPE]) {
  54 -               type = nf_tables_chain_type_lookup(afi, nla[NFTA_CHAIN_TYPE],
  55 -                                                  create);
  56 +               type = nf_tables_chain_type_lookup(nla[NFTA_CHAIN_TYPE],
  57 +                                                  afi->family, create);
  58                 if (IS_ERR(type))
  59                         return PTR_ERR(type);
  60         }