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authorÁlvaro Neira Ayuso <alvaroneay@gmail.com>2013-08-27 20:10:47 +0200
committerPablo Neira Ayuso <pablo@netfilter.org>2013-08-28 00:21:24 +0200
commit346b24fde7fceec7e69306e3e3fa07056aecc088 (patch)
tree939cb41a99a5ca7911fc14649a78b62f0d94c5a4 /src/set.c
parent16cb9c226bde108afac47f8537f38d502c82c51f (diff)
set: Add json parser support
Add function for parsing set in format JSON. Signed-off-by: Alvaro Neira Ayuso <alvaroneay@gmail.com> Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
Diffstat (limited to 'src/set.c')
-rw-r--r--src/set.c99
1 files changed, 99 insertions, 0 deletions
diff --git a/src/set.c b/src/set.c
index 3617265..1168b54 100644
--- a/src/set.c
+++ b/src/set.c
@@ -303,6 +303,102 @@ int nft_set_nlmsg_parse(const struct nlmsghdr *nlh, struct nft_set *s)
}
EXPORT_SYMBOL(nft_set_nlmsg_parse);
+static int nft_set_json_parse(struct nft_set *s, const char *json)
+{
+#ifdef JSON_PARSING
+ json_t *root, *node, *array, *json_elem;
+ json_error_t error;
+ uint32_t uval32;
+ int family, i;
+ const char *valstr;
+ struct nft_set_elem *elem;
+
+ node = nft_jansson_create_root(json, &error);
+ if (node == NULL)
+ return -1;
+
+ root = nft_jansson_get_node(node, "set");
+ if (root == NULL)
+ return -1;
+
+ valstr = nft_jansson_parse_str(root, "name");
+ if (valstr == NULL)
+ return -1;
+
+ nft_set_attr_set_str(s, NFT_SET_ATTR_NAME, valstr);
+
+ valstr = nft_jansson_parse_str(root, "table");
+ if (valstr == NULL)
+ return -1;
+
+ nft_set_attr_set_str(s, NFT_SET_ATTR_TABLE, valstr);
+
+ if (nft_jansson_parse_val(root, "flags", NFT_TYPE_U32, &uval32) < 0)
+ return -1;
+
+ nft_set_attr_set_u32(s, NFT_SET_ATTR_FLAGS, uval32);
+
+ if (nft_jansson_parse_family(root, &family) < 0)
+ return -1;
+
+ nft_set_attr_set_u32(s, NFT_SET_ATTR_FAMILY, family);
+
+ if (nft_jansson_parse_val(root, "key_type", NFT_TYPE_U32, &uval32) < 0)
+ return -1;
+
+ nft_set_attr_set_u32(s, NFT_SET_ATTR_KEY_TYPE, uval32);
+
+ if (nft_jansson_parse_val(root, "key_len", NFT_TYPE_U32, &uval32) < 0)
+ return -1;
+
+ nft_set_attr_set_u32(s, NFT_SET_ATTR_KEY_LEN, uval32);
+
+ if (nft_jansson_node_exist(root, "data_type")) {
+ if (nft_jansson_parse_val(root, "data_type", NFT_TYPE_U32,
+ &uval32) < 0)
+ goto err;
+
+ nft_set_attr_set_u32(s, NFT_SET_ATTR_DATA_TYPE, uval32);
+ }
+
+ if (nft_jansson_node_exist(root, "data_len")) {
+ if (nft_jansson_parse_val(root, "data_len", NFT_TYPE_U32,
+ &uval32) < 0)
+ goto err;
+
+ nft_set_attr_set_u32(s, NFT_SET_ATTR_DATA_LEN, uval32);
+ }
+
+ if (nft_jansson_node_exist(root, "set_elem")) {
+ array = json_object_get(root, "set_elem");
+ for (i = 0; i < json_array_size(array); i++) {
+ elem = nft_set_elem_alloc();
+ if (elem == NULL)
+ goto err;
+
+ json_elem = json_array_get(array, i);
+ if (json_elem == NULL)
+ goto err;
+
+ if (nft_set_elem_json_parse(elem, json_elem) < 0)
+ goto err;
+
+ list_add_tail(&elem->head, &s->element_list);
+ }
+
+ }
+
+ nft_jansson_free_root(node);
+ return 0;
+err:
+ nft_jansson_free_root(node);
+ return -1;
+#else
+ errno = EOPNOTSUPP;
+ return -1;
+#endif
+}
+
static int nft_set_xml_parse(struct nft_set *s, const char *xml)
{
#ifdef XML_PARSING
@@ -415,6 +511,9 @@ int nft_set_parse(struct nft_set *s, enum nft_set_parse_type type,
case NFT_SET_PARSE_XML:
ret = nft_set_xml_parse(s, data);
break;
+ case NFT_SET_PARSE_JSON:
+ ret = nft_set_json_parse(s, data);
+ break;
default:
ret = -1;
errno = EOPNOTSUPP;