@@ -28,5 +28,6 @@ int nft_data_reg_snprintf(char *buf, size_t size, union nft_data_reg *reg,
struct nlattr;
int nft_parse_data(union nft_data_reg *data, struct nlattr *attr, int *type);
+void nft_free_verdict(union nft_data_reg *data);
#endif
@@ -499,3 +499,14 @@ int nft_parse_data(union nft_data_reg *data, struct nlattr *attr, int *type)
return ret;
}
+void nft_free_verdict(union nft_data_reg *data)
+{
+ switch(data->verdict) {
+ case NFT_JUMP:
+ case NFT_GOTO:
+ xfree(data->chain);
+ break;
+ default:
+ break;
+ }
+}
@@ -309,10 +309,19 @@ nft_rule_expr_immediate_snprintf(char *buf, size_t len, uint32_t type,
return -1;
}
+static void nft_rule_expr_immediate_free(struct nft_rule_expr *e)
+{
+ struct nft_expr_immediate *imm = nft_expr_data(e);
+
+ if (e->flags & (1 << NFT_EXPR_IMM_VERDICT))
+ nft_free_verdict(&imm->data);
+}
+
struct expr_ops expr_ops_immediate = {
.name = "immediate",
.alloc_len = sizeof(struct nft_expr_immediate),
.max_attr = NFTA_IMMEDIATE_MAX,
+ .free = nft_rule_expr_immediate_free,
.set = nft_rule_expr_immediate_set,
.get = nft_rule_expr_immediate_get,
.parse = nft_rule_expr_immediate_parse,
The verdict can be a chain string, make sure we release it when the expression is destroyed. This patch adds a new nft_free_data() for this purpose and use it from the immediate expression. Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org> --- include/data_reg.h | 1 + src/expr/data_reg.c | 11 +++++++++++ src/expr/immediate.c | 9 +++++++++ 3 files changed, 21 insertions(+)