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| author | Álvaro Neira Ayuso <alvaroneay@gmail.com> | 2013-08-20 17:58:46 +0200 |
|---|---|---|
| committer | Pablo Neira Ayuso <pablo@netfilter.org> | 2013-08-20 21:01:09 +0200 |
| commit | c83c53a26de25c1e2900f7841647cec3b57c7438 (patch) | |
| tree | 4c0291b9a495e44911ba104650e2b04b4d4eb776 /src/expr/cmp.c | |
| parent | 978988a0f4730f1da2cfd7e3fa0670711bb6b802 (diff) | |
rule: Add json parser support
Add function for parsing rules in JSON format
Signed-off-by: Alvaro Neira Ayuso <alvaroneay@gmail.com>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
Diffstat (limited to 'src/expr/cmp.c')
| -rw-r--r-- | src/expr/cmp.c | 38 |
1 files changed, 38 insertions, 0 deletions
diff --git a/src/expr/cmp.c b/src/expr/cmp.c index 8ca4cb5..16be540 100644 --- a/src/expr/cmp.c +++ b/src/expr/cmp.c @@ -174,6 +174,43 @@ static inline int nft_str2cmp(const char *op) } } +static int nft_rule_expr_cmp_json_parse(struct nft_rule_expr *e, json_t *root) +{ +#ifdef JSON_PARSING + struct nft_expr_cmp *cmp = nft_expr_data(e); + const char *op; + uint32_t uval32; + int base; + + if (nft_jansson_value_parse_val(root, "sreg", NFT_TYPE_U32, + &uval32) != 0) + return -1; + + nft_rule_expr_set_u32(e, NFT_EXPR_CMP_SREG, uval32); + + op = nft_jansson_value_parse_str(root, "op"); + if (op == NULL) + return -1; + + base = nft_str2cmp(op); + if (base < 0) + return -1; + + nft_rule_expr_set_u32(e, NFT_EXPR_CMP_OP, base); + + if (nft_jansson_data_reg_parse(root, "cmpdata", + &cmp->data) != DATA_VALUE) + return -1; + + e->flags |= (1 << NFT_EXPR_CMP_DATA); + + return 0; +#else + errno = EOPNOTSUPP; + return -1; +#endif +} + static int nft_rule_expr_cmp_xml_parse(struct nft_rule_expr *e, mxml_node_t *tree) { #ifdef XML_PARSING @@ -296,6 +333,7 @@ struct expr_ops expr_ops_cmp = { .build = nft_rule_expr_cmp_build, .snprintf = nft_rule_expr_cmp_snprintf, .xml_parse = nft_rule_expr_cmp_xml_parse, + .json_parse = nft_rule_expr_cmp_json_parse, }; static void __init expr_cmp_init(void) { |