From c8b97360470c25007d3675474c636ca1ce95599a Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?=C3=81lvaro=20Neira=20Ayuso?= Date: Thu, 25 Jul 2013 22:52:15 +0200 Subject: table: Add json parser support Add function for parsing tables in format JSON Signed-off-by: Alvaro Neira Ayuso Signed-off-by: Pablo Neira Ayuso --- src/table.c | 69 +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 69 insertions(+) (limited to 'src/table.c') diff --git a/src/table.c b/src/table.c index d814668..65797e8 100644 --- a/src/table.c +++ b/src/table.c @@ -295,6 +295,72 @@ static int nft_table_xml_parse(struct nft_table *t, char *xml) #endif } +static int nft_table_json_parse(struct nft_table *t, char *json) +{ +#ifdef JSON_PARSING + json_t *root; + json_error_t error; + uint64_t version; + uint32_t table_flag; + const char *str = NULL; + + root = json_loadb(json, strlen(json), 0, &error); + if (!root) { + errno = EINVAL; + return -1; + } + + root = json_object_get(root, "table"); + if (root == NULL) { + errno = ERANGE; + return -1; + } + + if (nft_jansson_value_parse_val(root, "version", + NFT_TYPE_U64, &version) == -1) + goto err; + + if (version != NFT_TABLE_JSON_VERSION || version == -1) + goto err; + + str = nft_jansson_value_parse_str(root, "name"); + if (str == NULL) + goto err; + + nft_table_attr_set_str(t, NFT_TABLE_ATTR_NAME, strdup(str)); + + root = json_object_get(root, "properties"); + if (root == NULL) + goto err; + + str = nft_jansson_value_parse_str(root, "family"); + if (str == NULL) + goto err; + + if (nft_str2family(str) < 0) + goto err; + + nft_table_attr_set_u32(t, NFT_TABLE_ATTR_FAMILY, nft_str2family(str)); + + if (nft_jansson_value_parse_val(root, "table_flags", + NFT_TYPE_U32, &table_flag) == -1) + goto err; + + nft_table_attr_set_u32(t, NFT_TABLE_ATTR_FLAGS, table_flag); + + free(root); + return 0; +err: + free(root); + errno = ERANGE; + return -1; + +#else + errno = EOPNOTSUPP; + return -1; +#endif +} + int nft_table_parse(struct nft_table *t, enum nft_table_parse_type type, char *data) { @@ -304,6 +370,9 @@ int nft_table_parse(struct nft_table *t, enum nft_table_parse_type type, case NFT_TABLE_PARSE_XML: ret = nft_table_xml_parse(t, data); break; + case NFT_TABLE_PARSE_JSON: + ret = nft_table_json_parse(t, data); + break; default: ret = -1; errno = EOPNOTSUPP; -- cgit v1.2.3