diff options
| author | Álvaro Neira Ayuso <alvaroneay@gmail.com> | 2013-06-27 21:56:18 +0200 |
|---|---|---|
| committer | Pablo Neira Ayuso <pablo@netfilter.org> | 2013-06-29 11:56:05 +0200 |
| commit | 4a684c2ee4cdff2c5c6bfa06d93b58cb4e868bf6 (patch) | |
| tree | 6216e645631bba685f1c17e0cce851d0c1c6c517 /src/expr/nat.c | |
| parent | caf4ac2e95a358f5b6ee64c4cc6c6c96a0bff24b (diff) | |
src: support JSON format in chain, rule and expressions
While at it, order possible switch cases of _snprintf.
Signed-off-by: Alvaro Neira Ayuso <alvaroneay@gmail.com>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
Diffstat (limited to 'src/expr/nat.c')
| -rw-r--r-- | src/expr/nat.c | 44 |
1 files changed, 42 insertions, 2 deletions
diff --git a/src/expr/nat.c b/src/expr/nat.c index 506c0b1..b753069 100644 --- a/src/expr/nat.c +++ b/src/expr/nat.c @@ -328,6 +328,44 @@ static int nft_rule_expr_nat_xml_parse(struct nft_rule_expr *e, char *xml) } static int +nft_rule_expr_nat_snprintf_json(char *buf, size_t size, + struct nft_rule_expr *e) +{ + struct nft_expr_nat *nat = (struct nft_expr_nat *)e->data; + int len = size, offset = 0, ret = 0; + + if (nat->type == NFT_NAT_SNAT) + ret = snprintf(buf, len, "\"nat_type\" : \"snat\", "); + else if (nat->type == NFT_NAT_DNAT) + ret = snprintf(buf, len, "\nat_type\" : \"dnat\", "); + + SNPRINTF_BUFFER_SIZE(ret, size, len, offset); + + ret = snprintf(buf+offset, len, "\"family\" : \"%s\", ", + nft_family2str(nat->family)); + SNPRINTF_BUFFER_SIZE(ret, size, len, offset); + + if (e->flags & (1 << NFT_EXPR_NAT_REG_ADDR_MIN)) { + ret = snprintf(buf+offset, len, + "\"sreg_addr_min\" : %u, " + "\"sreg_addr_max\" : %u, ", + nat->sreg_addr_min, nat->sreg_addr_max); + SNPRINTF_BUFFER_SIZE(ret, size, len, offset); + } + + if (e->flags & (1 << NFT_EXPR_NAT_REG_PROTO_MIN)) { + ret = snprintf(buf+offset, len, + "\"sreg_proto_min\" : %u, " + "\"sreg_proto_max\" : %u", + nat->sreg_proto_min, nat->sreg_proto_max); + SNPRINTF_BUFFER_SIZE(ret, size, len, offset); + } + + return offset; +} + + +static int nft_rule_expr_nat_snprintf_xml(char *buf, size_t size, struct nft_rule_expr *e) { @@ -410,10 +448,12 @@ nft_rule_expr_nat_snprintf(char *buf, size_t size, uint32_t type, uint32_t flags, struct nft_rule_expr *e) { switch (type) { - case NFT_RULE_O_XML: - return nft_rule_expr_nat_snprintf_xml(buf, size, e); case NFT_RULE_O_DEFAULT: return nft_rule_expr_nat_snprintf_default(buf, size, e); + case NFT_RULE_O_XML: + return nft_rule_expr_nat_snprintf_xml(buf, size, e); + case NFT_RULE_O_JSON: + return nft_rule_expr_nat_snprintf_json(buf, size, e); default: break; } |