diff options
| author | Pablo Neira Ayuso <pablo@netfilter.org> | 2021-04-27 19:05:41 +0300 |
|---|---|---|
| committer | Pablo Neira Ayuso <pablo@netfilter.org> | 2021-04-27 19:05:41 +0300 |
| commit | 6387aa6e59be8d1158c5703f34553c93d7743d8c (patch) | |
| tree | 7063515ed8ff0dc6fc845c1e2d15cee1b8f986c6 /net | |
| parent | f8bb7889af58d8e74d2d61c76b1418230f1610fa (diff) | |
| download | linux-6387aa6e59be8d1158c5703f34553c93d7743d8c.tar.xz | |
netfilter: nftables: add loop check helper function
This patch adds nft_check_loops() to reuse it in the new catch-all
element codebase.
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
Diffstat (limited to 'net')
| -rw-r--r-- | net/netfilter/nf_tables_api.c | 30 |
1 files changed, 21 insertions, 9 deletions
diff --git a/net/netfilter/nf_tables_api.c b/net/netfilter/nf_tables_api.c index d66be7d8f3e5..502240fbb087 100644 --- a/net/netfilter/nf_tables_api.c +++ b/net/netfilter/nf_tables_api.c @@ -8626,26 +8626,38 @@ EXPORT_SYMBOL_GPL(nft_chain_validate_hooks); static int nf_tables_check_loops(const struct nft_ctx *ctx, const struct nft_chain *chain); +static int nft_check_loops(const struct nft_ctx *ctx, + const struct nft_set_ext *ext) +{ + const struct nft_data *data; + int ret; + + data = nft_set_ext_data(ext); + switch (data->verdict.code) { + case NFT_JUMP: + case NFT_GOTO: + ret = nf_tables_check_loops(ctx, data->verdict.chain); + break; + default: + ret = 0; + break; + } + + return ret; +} + static int nf_tables_loop_check_setelem(const struct nft_ctx *ctx, struct nft_set *set, const struct nft_set_iter *iter, struct nft_set_elem *elem) { const struct nft_set_ext *ext = nft_set_elem_ext(set, elem->priv); - const struct nft_data *data; if (nft_set_ext_exists(ext, NFT_SET_EXT_FLAGS) && *nft_set_ext_flags(ext) & NFT_SET_ELEM_INTERVAL_END) return 0; - data = nft_set_ext_data(ext); - switch (data->verdict.code) { - case NFT_JUMP: - case NFT_GOTO: - return nf_tables_check_loops(ctx, data->verdict.chain); - default: - return 0; - } + return nft_check_loops(ctx, ext); } static int nf_tables_check_loops(const struct nft_ctx *ctx, |