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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/exthdr.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/exthdr.c')
| -rw-r--r-- | src/expr/exthdr.c | 43 |
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) |