@@ -1442,7 +1442,7 @@ struct nft_chain_hook {
static int nft_chain_parse_hook(struct net *net,
const struct nlattr * const nla[],
struct nft_chain_hook *hook, u8 family,
- bool create)
+ bool autoload)
{
struct nlattr *ha[NFTA_HOOK_MAX + 1];
const struct nft_chain_type *type;
@@ -1467,7 +1467,7 @@ static int nft_chain_parse_hook(struct net *net,
type = chain_type[family][NFT_CHAIN_T_DEFAULT];
if (nla[NFTA_CHAIN_TYPE]) {
type = nf_tables_chain_type_lookup(net, nla[NFTA_CHAIN_TYPE],
- family, create);
+ family, autoload);
if (IS_ERR(type))
return PTR_ERR(type);
}
@@ -1534,7 +1534,7 @@ static struct nft_rule **nf_tables_chain_alloc_rules(const struct nft_chain *cha
}
static int nf_tables_addchain(struct nft_ctx *ctx, u8 family, u8 genmask,
- u8 policy, bool create)
+ u8 policy)
{
const struct nlattr * const *nla = ctx->nla;
struct nft_table *table = ctx->table;
@@ -1552,7 +1552,7 @@ static int nf_tables_addchain(struct nft_ctx *ctx, u8 family, u8 genmask,
struct nft_chain_hook hook;
struct nf_hook_ops *ops;
- err = nft_chain_parse_hook(net, nla, &hook, family, create);
+ err = nft_chain_parse_hook(net, nla, &hook, family, true);
if (err < 0)
return err;
@@ -1643,8 +1643,7 @@ static int nf_tables_addchain(struct nft_ctx *ctx, u8 family, u8 genmask,
return err;
}
-static int nf_tables_updchain(struct nft_ctx *ctx, u8 genmask, u8 policy,
- bool create)
+static int nf_tables_updchain(struct nft_ctx *ctx, u8 genmask, u8 policy)
{
const struct nlattr * const *nla = ctx->nla;
struct nft_table *table = ctx->table;
@@ -1661,7 +1660,7 @@ static int nf_tables_updchain(struct nft_ctx *ctx, u8 genmask, u8 policy,
return -EBUSY;
err = nft_chain_parse_hook(ctx->net, nla, &hook, ctx->family,
- create);
+ false);
if (err < 0)
return err;
@@ -1761,9 +1760,6 @@ static int nf_tables_newchain(struct net *net, struct sock *nlsk,
u8 policy = NF_ACCEPT;
struct nft_ctx ctx;
u64 handle = 0;
- bool create;
-
- create = nlh->nlmsg_flags & NLM_F_CREATE ? true : false;
lockdep_assert_held(&net->nft.commit_mutex);
@@ -1828,10 +1824,10 @@ static int nf_tables_newchain(struct net *net, struct sock *nlsk,
if (nlh->nlmsg_flags & NLM_F_REPLACE)
return -EOPNOTSUPP;
- return nf_tables_updchain(&ctx, genmask, policy, create);
+ return nf_tables_updchain(&ctx, genmask, policy);
}
- return nf_tables_addchain(&ctx, family, genmask, policy, create);
+ return nf_tables_addchain(&ctx, family, genmask, policy);
}
static int nf_tables_delchain(struct net *net, struct sock *nlsk,
@@ -2529,13 +2525,10 @@ static int nf_tables_newrule(struct net *net, struct sock *nlsk,
struct nlattr *tmp;
unsigned int size, i, n, ulen = 0, usize = 0;
int err, rem;
- bool create;
u64 handle, pos_handle;
lockdep_assert_held(&net->nft.commit_mutex);
- create = nlh->nlmsg_flags & NLM_F_CREATE ? true : false;
-
table = nft_table_lookup(net, nla[NFTA_RULE_TABLE], family, genmask);
if (IS_ERR(table)) {
NL_SET_BAD_ATTR(extack, nla[NFTA_RULE_TABLE]);
@@ -2565,7 +2558,8 @@ static int nf_tables_newrule(struct net *net, struct sock *nlsk,
else
return -EOPNOTSUPP;
} else {
- if (!create || nlh->nlmsg_flags & NLM_F_REPLACE)
+ if (!(nlh->nlmsg_flags & NLM_F_CREATE) ||
+ nlh->nlmsg_flags & NLM_F_REPLACE)
return -EINVAL;
handle = nf_tables_alloc_handle(table);
@@ -3361,7 +3355,6 @@ static int nf_tables_newset(struct net *net, struct sock *nlsk,
struct nft_ctx ctx;
char *name;
unsigned int size;
- bool create;
u64 timeout;
u32 ktype, dtype, flags, policy, gc_int, objtype;
struct nft_set_desc desc;
@@ -3462,8 +3455,6 @@ static int nf_tables_newset(struct net *net, struct sock *nlsk,
return err;
}
- create = nlh->nlmsg_flags & NLM_F_CREATE ? true : false;
-
table = nft_table_lookup(net, nla[NFTA_SET_TABLE], family, genmask);
if (IS_ERR(table)) {
NL_SET_BAD_ATTR(extack, nla[NFTA_SET_TABLE]);
* From nf_tables_newchain(), codepath provides context that allows us to infer if we are updating a chain (in that case, no module autoload is required) or adding a new one (then, module autoload is indeed needed). * We only need it in one single spot in nf_tables_newrule(). * Not needed for nf_tables_newset() at all. Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org> --- net/netfilter/nf_tables_api.c | 29 ++++++++++------------------- 1 file changed, 10 insertions(+), 19 deletions(-)