From c83c53a26de25c1e2900f7841647cec3b57c7438 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?=C3=81lvaro=20Neira=20Ayuso?= Date: Tue, 20 Aug 2013 17:58:46 +0200 Subject: rule: Add json parser support Add function for parsing rules in JSON format Signed-off-by: Alvaro Neira Ayuso Signed-off-by: Pablo Neira Ayuso --- src/expr/lookup.c | 31 +++++++++++++++++++++++++++++++ 1 file changed, 31 insertions(+) (limited to 'src/expr/lookup.c') diff --git a/src/expr/lookup.c b/src/expr/lookup.c index d66577b..34f484c 100644 --- a/src/expr/lookup.c +++ b/src/expr/lookup.c @@ -142,6 +142,36 @@ nft_rule_expr_lookup_parse(struct nft_rule_expr *e, struct nlattr *attr) return ret; } +static int +nft_rule_expr_lookup_json_parse(struct nft_rule_expr *e, json_t *root) +{ +#ifdef JSON_PARSING + const char *set_name; + int32_t reg; + + set_name = nft_jansson_value_parse_str(root, "set"); + if (set_name == NULL) + return -1; + + nft_rule_expr_set_str(e, NFT_EXPR_LOOKUP_SET, set_name); + + if (nft_jansson_value_parse_reg(root, "sreg", NFT_TYPE_U32, ®) != 0) + return -1; + + nft_rule_expr_set_u32(e, NFT_EXPR_LOOKUP_SREG, reg); + + if (nft_jansson_value_parse_reg(root, "dreg", NFT_TYPE_U32, ®) != 0) + return -1; + + nft_rule_expr_set_u32(e, NFT_EXPR_LOOKUP_DREG, reg); + + return 0; +#else + errno = EOPNOTSUPP; + return -1; +#endif +} + static int nft_rule_expr_lookup_xml_parse(struct nft_rule_expr *e, mxml_node_t *tree) { @@ -248,6 +278,7 @@ struct expr_ops expr_ops_lookup = { .build = nft_rule_expr_lookup_build, .snprintf = nft_rule_expr_lookup_snprintf, .xml_parse = nft_rule_expr_lookup_xml_parse, + .json_parse = nft_rule_expr_lookup_json_parse, }; static void __init expr_lookup_init(void) -- cgit v1.2.3