ucimap: add callback for validation/conversion and custom data type
[project/uci.git] / ucimap-example.c
index 4309a76..0ad31d6 100644 (file)
 #include <unistd.h>
 #include <ucimap.h>
 
+struct list_head ifs;
+
 struct uci_network {
        struct list_head list;
+       struct list_head alias;
 
        const char *name;
        const char *proto;
        const char *ifname;
-       const char *ipaddr;
+       unsigned char ipaddr[4];
        int test;
        bool enabled;
+       struct ucimap_list *aliases;
+};
+
+struct uci_alias {
+       struct list_head list;
+
+       const char *name;
+       struct uci_network *interface;
 };
 
 static int
-network_init_section(struct uci_map *map, void *section, struct uci_section *s)
+network_parse_ip(void *section, struct uci_optmap *om, union ucimap_data *data, const char *str)
+{
+       struct uci_network *net = section;
+       unsigned char *target = data->s;
+       unsigned int tmp[4];
+       int i;
+
+       if (sscanf(str, "%d.%d.%d.%d", &tmp[0], &tmp[1], &tmp[2], &tmp[3]) != 4)
+               return -1;
+
+       for (i = 0; i < 4; i++)
+               target[i] = (char) tmp[i];
+
+       return 0;
+}
+
+static int
+network_init_interface(struct uci_map *map, void *section, struct uci_section *s)
 {
        struct uci_network *net = section;
 
        INIT_LIST_HEAD(&net->list);
+       INIT_LIST_HEAD(&net->alias);
        net->name = s->e.name;
        net->test = -1;
        return 0;
 }
 
 static int
-network_add_section(struct uci_map *map, void *section)
+network_init_alias(struct uci_map *map, void *section, struct uci_section *s)
+{
+       struct uci_alias *alias = section;
+
+       INIT_LIST_HEAD(&alias->list);
+       alias->name = s->e.name;
+       return 0;
+}
+
+static int
+network_add_interface(struct uci_map *map, void *section)
 {
        struct uci_network *net = section;
-       struct uci_network **nptr = map->priv;
 
-       *nptr = net;
+       list_add(&net->list, &ifs);
+
        return 0;
 }
 
-struct uci_optmap network_smap_options[] = {
-       OPTMAP_OPTION(UCIMAP_STRING, struct uci_network, proto, .data.s.maxlen = 32),
-       OPTMAP_OPTION(UCIMAP_STRING, struct uci_network, ifname),
-       OPTMAP_OPTION(UCIMAP_STRING, struct uci_network, ipaddr),
-       OPTMAP_OPTION(UCIMAP_BOOL, struct uci_network, enabled),
-       OPTMAP_OPTION(UCIMAP_INT, struct uci_network, test),
+static int
+network_add_alias(struct uci_map *map, void *section)
+{
+       struct uci_alias *a = section;
+
+       if (a->interface)
+               list_add(&a->list, &a->interface->alias);
+
+       return 0;
+}
+
+struct my_optmap {
+       struct uci_optmap map;
+       int test;
+};
+
+static struct uci_sectmap network_interface;
+static struct uci_sectmap network_alias;
+
+static struct my_optmap network_interface_options[] = {
+       {
+               .map = {
+                       UCIMAP_OPTION(struct uci_network, proto),
+                       .type = UCIMAP_STRING,
+                       .name = "proto",
+                       .data.s.maxlen = 32,
+               }
+       },
+       {
+               .map = {
+                       UCIMAP_OPTION(struct uci_network, ifname),
+                       .type = UCIMAP_STRING,
+                       .name = "ifname"
+               }
+       },
+       {
+               .map = {
+                       UCIMAP_OPTION(struct uci_network, ipaddr),
+                       .type = UCIMAP_CUSTOM,
+                       .name = "ipaddr",
+                       .parse = network_parse_ip,
+               }
+       },
+       {
+               .map = {
+                       UCIMAP_OPTION(struct uci_network, enabled),
+                       .type = UCIMAP_BOOL,
+                       .name = "enabled",
+               }
+       },
+       {
+               .map = {
+                       UCIMAP_OPTION(struct uci_network, test),
+                       .type = UCIMAP_INT,
+                       .name = "test"
+               }
+       },
+       {
+               .map = {
+                       UCIMAP_OPTION(struct uci_network, aliases),
+                       .type = UCIMAP_LIST | UCIMAP_SECTION,
+                       .data.sm = &network_alias
+               }
+       }
 };
 
-struct uci_sectmap network_smap[] = {
+static struct uci_sectmap network_interface = {
+       .type = "interface",
+       .alloc_len = sizeof(struct uci_network),
+       .init = network_init_interface,
+       .add = network_add_interface,
+       .options = &network_interface_options[0].map,
+       .n_options = ARRAY_SIZE(network_interface_options),
+       .options_size = sizeof(struct my_optmap)
+};
+
+static struct uci_optmap network_alias_options[] = {
        {
-               .type = "interface",
-               .options = network_smap_options,
-               .alloc_len = sizeof(struct uci_network),
-               .init_section = network_init_section,
-               .add_section = network_add_section,
-               .n_options = ARRAY_SIZE(network_smap_options),
+               UCIMAP_OPTION(struct uci_alias, interface),
+               .type = UCIMAP_SECTION,
+               .data.sm = &network_interface
        }
 };
 
-struct uci_map network_map = {
+static struct uci_sectmap network_alias = {
+       .type = "alias",
+       .options = network_alias_options,
+       .alloc_len = sizeof(struct uci_network),
+       .init = network_init_alias,
+       .add = network_add_alias,
+       .n_options = ARRAY_SIZE(network_alias_options),
+};
+
+static struct uci_sectmap *network_smap[] = {
+       &network_interface,
+       &network_alias,
+};
+
+static struct uci_map network_map = {
        .sections = network_smap,
        .n_sections = ARRAY_SIZE(network_smap),
 };
@@ -78,36 +196,47 @@ int main(int argc, char **argv)
 {
        struct uci_context *ctx;
        struct uci_package *pkg;
-       struct uci_network *net = NULL;
+       struct list_head *p, *p2;
+       struct uci_network *net;
+       struct uci_alias *alias;
+       int i;
 
+       INIT_LIST_HEAD(&ifs);
        ctx = uci_alloc_context();
        ucimap_init(&network_map);
 
        uci_load(ctx, "network", &pkg);
 
-       network_map.priv = &net;
        ucimap_parse(&network_map, pkg);
 
-       if (!net)
-               goto done;
-
-       printf("New network section '%s'\n"
+       list_for_each(p, &ifs) {
+               net = list_entry(p, struct uci_network, list);
+               printf("New network section '%s'\n"
                        "       type: %s\n"
                        "       ifname: %s\n"
-                       "       ipaddr: %s\n"
+                       "       ipaddr: %d.%d.%d.%d\n"
                        "       test: %d\n"
                        "       enabled: %s\n",
                        net->name,
                        net->proto,
                        net->ifname,
-                       net->ipaddr,
+                       net->ipaddr[0], net->ipaddr[1],
+                       net->ipaddr[2], net->ipaddr[3],
                        net->test,
                        (net->enabled ? "on" : "off"));
 
-       net->ipaddr = "2.3.4.5";
-       ucimap_set_changed(net, &net->ipaddr);
-       ucimap_store_section(&network_map, pkg, net);
-       uci_save(ctx, pkg);
+               for (i = 0; i < net->aliases->n_items; i++) {
+                       alias = net->aliases->item[i].section;
+                       printf("New alias: %s\n", alias->name);
+               }
+#if 0
+               net->ipaddr = "2.3.4.5";
+               ucimap_set_changed(net, &net->ipaddr);
+               ucimap_store_section(&network_map, pkg, net);
+               uci_save(ctx, pkg);
+#endif
+       }
+
 
 done:
        ucimap_cleanup(&network_map);