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-rw-r--r--src/expr/bitwise.c45
1 files changed, 45 insertions, 0 deletions
diff --git a/src/expr/bitwise.c b/src/expr/bitwise.c
index 6c86acb..8cea075 100644
--- a/src/expr/bitwise.c
+++ b/src/expr/bitwise.c
@@ -181,6 +181,50 @@ nft_rule_expr_bitwise_parse(struct nft_rule_expr *e, struct nlattr *attr)
}
static int
+nft_rule_expr_bitwise_json_parse(struct nft_rule_expr *e, json_t *root)
+{
+#ifdef JSON_PARSING
+ struct nft_expr_bitwise *bitwise = nft_expr_data(e);
+ uint32_t reg, len;
+
+ if (nft_jansson_value_parse_reg(root, "sreg", NFT_TYPE_U32, &reg) == -1)
+ return -1;
+
+ nft_rule_expr_set_u32(e, NFT_EXPR_BITWISE_SREG, reg);
+
+ if (nft_jansson_value_parse_reg(root, "dreg", NFT_TYPE_U32, &reg) == -1)
+ return -1;
+
+ nft_rule_expr_set_u32(e, NFT_EXPR_BITWISE_DREG, reg);
+
+ if (nft_jansson_value_parse_val(root, "len", NFT_TYPE_U32, &len) == -1)
+ return -1;
+
+ nft_rule_expr_set_u32(e, NFT_EXPR_BITWISE_LEN, len);
+
+ if (nft_jansson_data_reg_parse(root, "mask",
+ &bitwise->mask) != DATA_VALUE)
+ return -1;
+
+ e->flags |= (1 << NFT_EXPR_BITWISE_MASK);
+
+ if (nft_jansson_data_reg_parse(root, "xor",
+ &bitwise->xor) != DATA_VALUE)
+ return -1;
+
+ e->flags |= (1 << NFT_EXPR_BITWISE_XOR);
+
+ if (bitwise->mask.len != bitwise->xor.len)
+ return -1;
+
+ return 0;
+#else
+ errno = EOPNOTSUPP;
+ return -1;
+#endif
+}
+
+static int
nft_rule_expr_bitwise_xml_parse(struct nft_rule_expr *e, mxml_node_t *tree)
{
#ifdef XML_PARSING
@@ -349,6 +393,7 @@ struct expr_ops expr_ops_bitwise = {
.build = nft_rule_expr_bitwise_build,
.snprintf = nft_rule_expr_bitwise_snprintf,
.xml_parse = nft_rule_expr_bitwise_xml_parse,
+ .json_parse = nft_rule_expr_bitwise_json_parse,
};
static void __init expr_bitwise(void)