static struct json_object *list_namespaces(struct ndctl_region *region,
struct json_object *container, struct json_object *jnamespaces,
bool continue_array)
{
struct ndctl_namespace *ndns;
ndctl_namespace_foreach(region, ndns) {
struct json_object *jndns;
/* are we emitting namespaces? */
if (!list.namespaces)
break;
if (!list.idle && !util_namespace_active(ndns))
continue;
if (!jnamespaces) {
jnamespaces = json_object_new_array();
if (!jnamespaces) {
fail("\n");
continue;
}
if (container)
json_object_object_add(container, "namespaces",
jnamespaces);
}
jndns = util_namespace_to_json(ndns);
if (!jndns) {
fail("\n");
continue;
}
json_object_array_add(jnamespaces, jndns);
}
/*
* We we are collecting namespaces anonymously across the
* platform / bus
*/
if (continue_array)
return jnamespaces;
return NULL;
}
struct json_object *util_namespace_to_json(struct ndctl_namespace *ndns)
{
struct json_object *jndns = json_object_new_object();
unsigned long long size = ULLONG_MAX;
enum ndctl_namespace_mode mode;
struct json_object *jobj;
const char *bdev = NULL;
struct ndctl_btt *btt;
struct ndctl_pfn *pfn;
struct ndctl_dax *dax;
char buf[40];
uuid_t uuid;
if (!jndns)
return NULL;
jobj = json_object_new_string(ndctl_namespace_get_devname(ndns));
if (!jobj)
goto err;
json_object_object_add(jndns, "dev", jobj);
btt = ndctl_namespace_get_btt(ndns);
dax = ndctl_namespace_get_dax(ndns);
pfn = ndctl_namespace_get_pfn(ndns);
mode = ndctl_namespace_get_mode(ndns);
switch (mode) {
case NDCTL_NS_MODE_MEMORY:
if (pfn) /* dynamic memory mode */
size = ndctl_pfn_get_size(pfn);
else /* native/static memory mode */
size = ndctl_namespace_get_size(ndns);
jobj = json_object_new_string("memory");
break;
case NDCTL_NS_MODE_DAX:
size = ndctl_dax_get_size(dax);
jobj = json_object_new_string("dax");
break;
case NDCTL_NS_MODE_SAFE:
jobj = json_object_new_string("sector");
break;
case NDCTL_NS_MODE_RAW:
size = ndctl_namespace_get_size(ndns);
jobj = json_object_new_string("raw");
break;
default:
jobj = NULL;
}
if (jobj)
json_object_object_add(jndns, "mode", jobj);
if (size < ULLONG_MAX) {
jobj = json_object_new_int64(size);
if (jobj)
json_object_object_add(jndns, "size", jobj);
}
if (btt) {
ndctl_btt_get_uuid(btt, uuid);
uuid_unparse(uuid, buf);
jobj = json_object_new_string(buf);
if (!jobj)
goto err;
json_object_object_add(jndns, "uuid", jobj);
jobj = json_object_new_int(ndctl_btt_get_sector_size(btt));
if (!jobj)
goto err;
json_object_object_add(jndns, "sector_size", jobj);
bdev = ndctl_btt_get_block_device(btt);
} else if (pfn) {
ndctl_pfn_get_uuid(pfn, uuid);
uuid_unparse(uuid, buf);
jobj = json_object_new_string(buf);
if (!jobj)
goto err;
json_object_object_add(jndns, "uuid", jobj);
bdev = ndctl_pfn_get_block_device(pfn);
} else if (dax) {
ndctl_dax_get_uuid(dax, uuid);
uuid_unparse(uuid, buf);
jobj = json_object_new_string(buf);
if (!jobj)
goto err;
json_object_object_add(jndns, "uuid", jobj);
} else if (ndctl_namespace_get_type(ndns) != ND_DEVICE_NAMESPACE_IO) {
const char *name;
ndctl_namespace_get_uuid(ndns, uuid);
uuid_unparse(uuid, buf);
jobj = json_object_new_string(buf);
if (!jobj)
goto err;
json_object_object_add(jndns, "uuid", jobj);
name = ndctl_namespace_get_alt_name(ndns);
if (name[0]) {
jobj = json_object_new_string(name);
if (!jobj)
goto err;
json_object_object_add(jndns, "name", jobj);
}
bdev = ndctl_namespace_get_block_device(ndns);
} else
bdev = ndctl_namespace_get_block_device(ndns);
if (bdev && bdev[0]) {
jobj = json_object_new_string(bdev);
if (!jobj)
goto err;
json_object_object_add(jndns, "blockdev", jobj);
}
if (!util_namespace_active(ndns)) {
jobj = json_object_new_string("disabled");
if (!jobj)
goto err;
json_object_object_add(jndns, "state", jobj);
}
return jndns;
err:
json_object_put(jndns);
return NULL;
}
