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authorPhil Sutter <phil@nwl.cc>2023-09-01 15:16:15 +0300
committerFlorian Westphal <fw@strlen.de>2023-09-28 17:31:29 +0300
commit013714bf3e125a218bb02c938ff6df348dda743e (patch)
tree11f7c791ece934b75f3f3f67f6d68769a73353e8 /net/netfilter
parentaee1f692bfeda9e5c3a40cbc165d80de0ffb0879 (diff)
downloadlinux-013714bf3e125a218bb02c938ff6df348dda743e.tar.xz
netfilter: nf_tables: Utilize NLA_POLICY_NESTED_ARRAY
Mark attributes which are supposed to be arrays of nested attributes with known content as such. Originally suggested for NFTA_RULE_EXPRESSIONS only, but does apply to others as well. Suggested-by: Florian Westphal <fw@strlen.de> Signed-off-by: Phil Sutter <phil@nwl.cc> Signed-off-by: Florian Westphal <fw@strlen.de>
Diffstat (limited to 'net/netfilter')
-rw-r--r--net/netfilter/nf_tables_api.c18
1 files changed, 9 insertions, 9 deletions
diff --git a/net/netfilter/nf_tables_api.c b/net/netfilter/nf_tables_api.c
index f993c237afd0..7e2e76086d25 100644
--- a/net/netfilter/nf_tables_api.c
+++ b/net/netfilter/nf_tables_api.c
@@ -3316,7 +3316,7 @@ static const struct nla_policy nft_rule_policy[NFTA_RULE_MAX + 1] = {
[NFTA_RULE_CHAIN] = { .type = NLA_STRING,
.len = NFT_CHAIN_MAXNAMELEN - 1 },
[NFTA_RULE_HANDLE] = { .type = NLA_U64 },
- [NFTA_RULE_EXPRESSIONS] = { .type = NLA_NESTED },
+ [NFTA_RULE_EXPRESSIONS] = NLA_POLICY_NESTED_ARRAY(nft_expr_policy),
[NFTA_RULE_COMPAT] = { .type = NLA_NESTED },
[NFTA_RULE_POSITION] = { .type = NLA_U64 },
[NFTA_RULE_USERDATA] = { .type = NLA_BINARY,
@@ -4254,12 +4254,16 @@ static const struct nla_policy nft_set_policy[NFTA_SET_MAX + 1] = {
[NFTA_SET_OBJ_TYPE] = { .type = NLA_U32 },
[NFTA_SET_HANDLE] = { .type = NLA_U64 },
[NFTA_SET_EXPR] = { .type = NLA_NESTED },
- [NFTA_SET_EXPRESSIONS] = { .type = NLA_NESTED },
+ [NFTA_SET_EXPRESSIONS] = NLA_POLICY_NESTED_ARRAY(nft_expr_policy),
+};
+
+static const struct nla_policy nft_concat_policy[NFTA_SET_FIELD_MAX + 1] = {
+ [NFTA_SET_FIELD_LEN] = { .type = NLA_U32 },
};
static const struct nla_policy nft_set_desc_policy[NFTA_SET_DESC_MAX + 1] = {
[NFTA_SET_DESC_SIZE] = { .type = NLA_U32 },
- [NFTA_SET_DESC_CONCAT] = { .type = NLA_NESTED },
+ [NFTA_SET_DESC_CONCAT] = NLA_POLICY_NESTED_ARRAY(nft_concat_policy),
};
static struct nft_set *nft_set_lookup(const struct nft_table *table,
@@ -4715,10 +4719,6 @@ err_fill_set_info:
return err;
}
-static const struct nla_policy nft_concat_policy[NFTA_SET_FIELD_MAX + 1] = {
- [NFTA_SET_FIELD_LEN] = { .type = NLA_U32 },
-};
-
static int nft_set_desc_concat_parse(const struct nlattr *attr,
struct nft_set_desc *desc)
{
@@ -5500,7 +5500,7 @@ static const struct nla_policy nft_set_elem_policy[NFTA_SET_ELEM_MAX + 1] = {
[NFTA_SET_ELEM_OBJREF] = { .type = NLA_STRING,
.len = NFT_OBJ_MAXNAMELEN - 1 },
[NFTA_SET_ELEM_KEY_END] = { .type = NLA_NESTED },
- [NFTA_SET_ELEM_EXPRESSIONS] = { .type = NLA_NESTED },
+ [NFTA_SET_ELEM_EXPRESSIONS] = NLA_POLICY_NESTED_ARRAY(nft_expr_policy),
};
static const struct nla_policy nft_set_elem_list_policy[NFTA_SET_ELEM_LIST_MAX + 1] = {
@@ -5508,7 +5508,7 @@ static const struct nla_policy nft_set_elem_list_policy[NFTA_SET_ELEM_LIST_MAX +
.len = NFT_TABLE_MAXNAMELEN - 1 },
[NFTA_SET_ELEM_LIST_SET] = { .type = NLA_STRING,
.len = NFT_SET_MAXNAMELEN - 1 },
- [NFTA_SET_ELEM_LIST_ELEMENTS] = { .type = NLA_NESTED },
+ [NFTA_SET_ELEM_LIST_ELEMENTS] = NLA_POLICY_NESTED_ARRAY(nft_set_elem_policy),
[NFTA_SET_ELEM_LIST_SET_ID] = { .type = NLA_U32 },
};