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netfilter: conntrack: move nf_ct_netns_{get,put}() to core

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So we can call this from other expression that need conntrack in place
to work.

Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
Acked-by: Florian Westphal <fw@strlen.de>
This commit is contained in:
Pablo Neira Ayuso 2017-11-03 16:26:32 +01:00
parent 5caaed151a
commit 7e35ec0e80
2 changed files with 38 additions and 38 deletions
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37
net/netfilter/nf_conntrack_proto.c
View File

@ -172,7 +172,7 @@ void nf_ct_l3proto_module_put(unsigned short l3proto)
} }
EXPORT_SYMBOL_GPL(nf_ct_l3proto_module_put); EXPORT_SYMBOL_GPL(nf_ct_l3proto_module_put);
int nf_ct_netns_get(struct net *net, u8 nfproto) static int nf_ct_netns_do_get(struct net *net, u8 nfproto)
{ {
const struct nf_conntrack_l3proto *l3proto; const struct nf_conntrack_l3proto *l3proto;
int ret; int ret;
@ -197,9 +197,33 @@ int nf_ct_netns_get(struct net *net, u8 nfproto)
return ret; return ret;
} }
int nf_ct_netns_get(struct net *net, u8 nfproto)
{
int err;
if (nfproto == NFPROTO_INET) {
err = nf_ct_netns_do_get(net, NFPROTO_IPV4);
if (err < 0)
goto err1;
err = nf_ct_netns_do_get(net, NFPROTO_IPV6);
if (err < 0)
goto err2;
} else {
err = nf_ct_netns_do_get(net, nfproto);
if (err < 0)
goto err1;
}
return 0;
err2:
nf_ct_netns_put(net, NFPROTO_IPV4);
err1:
return err;
}
EXPORT_SYMBOL_GPL(nf_ct_netns_get); EXPORT_SYMBOL_GPL(nf_ct_netns_get);
void nf_ct_netns_put(struct net *net, u8 nfproto) static void nf_ct_netns_do_put(struct net *net, u8 nfproto)
{ {
const struct nf_conntrack_l3proto *l3proto; const struct nf_conntrack_l3proto *l3proto;
@ -218,6 +242,15 @@ void nf_ct_netns_put(struct net *net, u8 nfproto)
nf_ct_l3proto_module_put(nfproto); nf_ct_l3proto_module_put(nfproto);
} }
void nf_ct_netns_put(struct net *net, uint8_t nfproto)
{
if (nfproto == NFPROTO_INET) {
nf_ct_netns_do_put(net, NFPROTO_IPV4);
nf_ct_netns_do_put(net, NFPROTO_IPV6);
} else
nf_ct_netns_do_put(net, nfproto);
}
EXPORT_SYMBOL_GPL(nf_ct_netns_put); EXPORT_SYMBOL_GPL(nf_ct_netns_put);
const struct nf_conntrack_l4proto * const struct nf_conntrack_l4proto *

39
net/netfilter/nft_ct.c
View File

@ -312,39 +312,6 @@ static const struct nla_policy nft_ct_policy[NFTA_CT_MAX + 1] = {
[NFTA_CT_SREG] = { .type = NLA_U32 }, [NFTA_CT_SREG] = { .type = NLA_U32 },
}; };
static int nft_ct_netns_get(struct net *net, uint8_t family)
{
int err;
if (family == NFPROTO_INET) {
err = nf_ct_netns_get(net, NFPROTO_IPV4);
if (err < 0)
goto err1;
err = nf_ct_netns_get(net, NFPROTO_IPV6);
if (err < 0)
goto err2;
} else {
err = nf_ct_netns_get(net, family);
if (err < 0)
goto err1;
}
return 0;
err2:
nf_ct_netns_put(net, NFPROTO_IPV4);
err1:
return err;
}
static void nft_ct_netns_put(struct net *net, uint8_t family)
{
if (family == NFPROTO_INET) {
nf_ct_netns_put(net, NFPROTO_IPV4);
nf_ct_netns_put(net, NFPROTO_IPV6);
} else
nf_ct_netns_put(net, family);
}
#ifdef CONFIG_NF_CONNTRACK_ZONES #ifdef CONFIG_NF_CONNTRACK_ZONES
static void nft_ct_tmpl_put_pcpu(void) static void nft_ct_tmpl_put_pcpu(void)
{ {
@ -489,7 +456,7 @@ static int nft_ct_get_init(const struct nft_ctx *ctx,
if (err < 0) if (err < 0)
return err; return err;
err = nft_ct_netns_get(ctx->net, ctx->afi->family); err = nf_ct_netns_get(ctx->net, ctx->afi->family);
if (err < 0) if (err < 0)
return err; return err;
@ -583,7 +550,7 @@ static int nft_ct_set_init(const struct nft_ctx *ctx,
if (err < 0) if (err < 0)
goto err1; goto err1;
err = nft_ct_netns_get(ctx->net, ctx->afi->family); err = nf_ct_netns_get(ctx->net, ctx->afi->family);
if (err < 0) if (err < 0)
goto err1; goto err1;
@ -606,7 +573,7 @@ static void nft_ct_set_destroy(const struct nft_ctx *ctx,
struct nft_ct *priv = nft_expr_priv(expr); struct nft_ct *priv = nft_expr_priv(expr);
__nft_ct_set_destroy(ctx, priv); __nft_ct_set_destroy(ctx, priv);
nft_ct_netns_put(ctx->net, ctx->afi->family); nf_ct_netns_put(ctx->net, ctx->afi->family);
} }
static int nft_ct_get_dump(struct sk_buff *skb, const struct nft_expr *expr) static int nft_ct_get_dump(struct sk_buff *skb, const struct nft_expr *expr)