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author | Álvaro Neira Ayuso <alvaroneay@gmail.com> | 2013-08-20 17:58:46 +0200 |
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committer | Pablo Neira Ayuso <pablo@netfilter.org> | 2013-08-20 21:01:09 +0200 |
commit | c83c53a26de25c1e2900f7841647cec3b57c7438 (patch) | |
tree | 4c0291b9a495e44911ba104650e2b04b4d4eb776 /src/expr/bitwise.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/bitwise.c')
-rw-r--r-- | src/expr/bitwise.c | 45 |
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, ®) == -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, ®) == -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) |