client: store image cache data in database

Parse the 'cache' field of the refresh payload sent by the clients.

Cache field structure in the payload:
{
    ...
    'cache': [
        {'name': 'windows.img', 'size': 2432370213, checksum: '5d4dcc677bc19f40a647d0002f4ade90'},
        {'name': 'linux.img', 'size': 243234534213, checksum: '3eb22f888f88a55ad954f55644e1192e'},
    ]
    ...
}

Store that data in the 'cache' table of the  database so it can
be obtained later on.
The table contains the following fields:
- clientid: the numeric identifier of the client.
- imagename: name of the image in cache.
- size: size in bytes of the image in cache.
- checksum: checksum of the image in cache.

1 files changed, 14 insertions, 0 deletions

diff --git a/src/json.h b/src/json.h
index e37f1b2..d3838cf 100644
--- a/src/json.h
+++ b/src/json.h
@@ -132,4 +132,18 @@ struct og_procedure {
 
 int og_json_parse_procedure(json_t *element, struct og_procedure *proc);
 
+#define OG_PARAM_IMG_NAME		(1UL << 0)
+#define OG_PARAM_IMG_SIZE		(1UL << 1)
+#define OG_PARAM_IMG_CHECKSUM		(1UL << 2)
+
+struct og_cache_image {
+	const char *name;
+	uint64_t   size;
+	const char *checksum;
+	struct list_head list;
+};
+
+void og_cache_image_free(struct list_head *cache_list);
+int og_json_parse_cache(json_t *element, struct list_head *cache_list);
+
 #endif