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-rw-r--r--src/expr/exthdr.c43
1 files changed, 43 insertions, 0 deletions
diff --git a/src/expr/exthdr.c b/src/expr/exthdr.c
index 9781232..8d4e8b7 100644
--- a/src/expr/exthdr.c
+++ b/src/expr/exthdr.c
@@ -192,6 +192,48 @@ static inline int str2exthdr_type(const char *str)
return -1;
}
+static int
+nft_rule_expr_exthdr_json_parse(struct nft_rule_expr *e, json_t *root)
+{
+#ifdef JSON_PARSING
+ const char *exthdr_type;
+ uint32_t uval32;
+ int type;
+
+ if (nft_jansson_value_parse_reg(root, "dreg", NFT_TYPE_U32,
+ &uval32) != 0)
+ return -1;
+
+ nft_rule_expr_set_u32(e, NFT_EXPR_EXTHDR_DREG, uval32);
+
+ exthdr_type = nft_jansson_value_parse_str(root, "exthdr_type");
+ if (exthdr_type == NULL)
+ return -1;
+
+ type = str2exthdr_type(exthdr_type);
+ if (type < 0)
+ return -1;
+
+ nft_rule_expr_set_u32(e, NFT_EXPR_EXTHDR_TYPE, type);
+
+ if (nft_jansson_value_parse_val(root, "offset", NFT_TYPE_U32,
+ &uval32) != 0)
+ return -1;
+
+ nft_rule_expr_set_u32(e, NFT_EXPR_EXTHDR_OFFSET, uval32);
+
+ if (nft_jansson_value_parse_val(root, "len", NFT_TYPE_U32,
+ &uval32) != 0)
+ return -1;
+
+ nft_rule_expr_set_u32(e, NFT_EXPR_EXTHDR_LEN, uval32);
+
+ return 0;
+#else
+ errno = EOPNOTSUPP;
+ return -1;
+#endif
+}
static int
nft_rule_expr_exthdr_xml_parse(struct nft_rule_expr *e, mxml_node_t *tree)
@@ -284,6 +326,7 @@ struct expr_ops expr_ops_exthdr = {
.build = nft_rule_expr_exthdr_build,
.snprintf = nft_rule_expr_exthdr_snprintf,
.xml_parse = nft_rule_expr_exthdr_xml_parse,
+ .json_parse = nft_rule_expr_exthdr_json_parse,
};
static void __init expr_exthdr_init(void)