diff options
author | Pablo Neira Ayuso <pablo@netfilter.org> | 2022-01-09 17:11:13 +0100 |
---|---|---|
committer | Pablo Neira Ayuso <pablo@netfilter.org> | 2022-01-09 23:35:16 +0100 |
commit | 37f319f37d9005693dff085bb72852eeebc803ef (patch) | |
tree | 419b8fdaf046f879a6a2f52fc14d22dfbe72303b /net/netfilter | |
parent | 6316136ec6e3dd1c302f7e7289a9ee46ecc610ae (diff) | |
download | linux-37f319f37d9005693dff085bb72852eeebc803ef.tar.bz2 |
netfilter: nft_connlimit: move stateful fields out of expression data
In preparation for the rule blob representation.
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
Diffstat (limited to 'net/netfilter')
-rw-r--r-- | net/netfilter/nft_connlimit.c | 26 |
1 files changed, 18 insertions, 8 deletions
diff --git a/net/netfilter/nft_connlimit.c b/net/netfilter/nft_connlimit.c index 7d0761fad37e..58dcafe8bf79 100644 --- a/net/netfilter/nft_connlimit.c +++ b/net/netfilter/nft_connlimit.c @@ -14,7 +14,7 @@ #include <net/netfilter/nf_conntrack_zones.h> struct nft_connlimit { - struct nf_conncount_list list; + struct nf_conncount_list *list; u32 limit; bool invert; }; @@ -43,12 +43,12 @@ static inline void nft_connlimit_do_eval(struct nft_connlimit *priv, return; } - if (nf_conncount_add(nft_net(pkt), &priv->list, tuple_ptr, zone)) { + if (nf_conncount_add(nft_net(pkt), priv->list, tuple_ptr, zone)) { regs->verdict.code = NF_DROP; return; } - count = priv->list.count; + count = priv->list->count; if ((count > priv->limit) ^ priv->invert) { regs->verdict.code = NFT_BREAK; @@ -76,7 +76,11 @@ static int nft_connlimit_do_init(const struct nft_ctx *ctx, invert = true; } - nf_conncount_list_init(&priv->list); + priv->list = kmalloc(sizeof(*priv->list), GFP_KERNEL); + if (!priv->list) + return -ENOMEM; + + nf_conncount_list_init(priv->list); priv->limit = limit; priv->invert = invert; @@ -87,7 +91,8 @@ static void nft_connlimit_do_destroy(const struct nft_ctx *ctx, struct nft_connlimit *priv) { nf_ct_netns_put(ctx->net, ctx->family); - nf_conncount_cache_free(&priv->list); + nf_conncount_cache_free(priv->list); + kfree(priv->list); } static int nft_connlimit_do_dump(struct sk_buff *skb, @@ -200,7 +205,11 @@ static int nft_connlimit_clone(struct nft_expr *dst, const struct nft_expr *src) struct nft_connlimit *priv_dst = nft_expr_priv(dst); struct nft_connlimit *priv_src = nft_expr_priv(src); - nf_conncount_list_init(&priv_dst->list); + priv_dst->list = kmalloc(sizeof(*priv_dst->list), GFP_ATOMIC); + if (priv_dst->list) + return -ENOMEM; + + nf_conncount_list_init(priv_dst->list); priv_dst->limit = priv_src->limit; priv_dst->invert = priv_src->invert; @@ -212,7 +221,8 @@ static void nft_connlimit_destroy_clone(const struct nft_ctx *ctx, { struct nft_connlimit *priv = nft_expr_priv(expr); - nf_conncount_cache_free(&priv->list); + nf_conncount_cache_free(priv->list); + kfree(priv->list); } static bool nft_connlimit_gc(struct net *net, const struct nft_expr *expr) @@ -221,7 +231,7 @@ static bool nft_connlimit_gc(struct net *net, const struct nft_expr *expr) bool ret; local_bh_disable(); - ret = nf_conncount_gc_list(net, &priv->list); + ret = nf_conncount_gc_list(net, priv->list); local_bh_enable(); return ret; |