machined: add support for reporting image size via btrfs quota

1 files changed, 115 insertions, 6 deletions

diff --git a/src/machine/image-dbus.c b/src/machine/image-dbus.c
index 1030cd314f..cae7b227dd 100644
--- a/src/machine/image-dbus.c
+++ b/src/machine/image-dbus.c
@@ -213,6 +213,111 @@ static int property_get_mtime(
         return 1;
 }
 
+static int property_get_size(
+                sd_bus *bus,
+                const char *path,
+                const char *interface,
+                const char *property,
+                sd_bus_message *reply,
+                void *userdata,
+                sd_bus_error *error) {
+
+        _cleanup_(image_unrefp) Image *image = NULL;
+        int r;
+
+        assert(bus);
+        assert(reply);
+
+        r = image_find_by_bus_path_with_error(path, &image, error);
+        if (r < 0)
+                return r;
+
+        r = sd_bus_message_append(reply, "t", image->size);
+        if (r < 0)
+                return r;
+
+        return 1;
+}
+
+
+static int property_get_limit(
+                sd_bus *bus,
+                const char *path,
+                const char *interface,
+                const char *property,
+                sd_bus_message *reply,
+                void *userdata,
+                sd_bus_error *error) {
+
+        _cleanup_(image_unrefp) Image *image = NULL;
+        int r;
+
+        assert(bus);
+        assert(reply);
+
+        r = image_find_by_bus_path_with_error(path, &image, error);
+        if (r < 0)
+                return r;
+
+        r = sd_bus_message_append(reply, "t", image->limit);
+        if (r < 0)
+                return r;
+
+        return 1;
+}
+
+static int property_get_size_exclusive(
+                sd_bus *bus,
+                const char *path,
+                const char *interface,
+                const char *property,
+                sd_bus_message *reply,
+                void *userdata,
+                sd_bus_error *error) {
+
+        _cleanup_(image_unrefp) Image *image = NULL;
+        int r;
+
+        assert(bus);
+        assert(reply);
+
+        r = image_find_by_bus_path_with_error(path, &image, error);
+        if (r < 0)
+                return r;
+
+        r = sd_bus_message_append(reply, "t", image->size_exclusive);
+        if (r < 0)
+                return r;
+
+        return 1;
+}
+
+static int property_get_limit_exclusive(
+                sd_bus *bus,
+                const char *path,
+                const char *interface,
+                const char *property,
+                sd_bus_message *reply,
+                void *userdata,
+                sd_bus_error *error) {
+
+        _cleanup_(image_unrefp) Image *image = NULL;
+        int r;
+
+        assert(bus);
+        assert(reply);
+
+        r = image_find_by_bus_path_with_error(path, &image, error);
+        if (r < 0)
+                return r;
+
+        r = sd_bus_message_append(reply, "t", image->limit_exclusive);
+        if (r < 0)
+                return r;
+
+        return 1;
+}
+
 static int method_remove(
                 sd_bus *bus,
                 sd_bus_message *message,
@@ -327,12 +432,16 @@ static int method_mark_read_only(
 
 const sd_bus_vtable image_vtable[] = {
         SD_BUS_VTABLE_START(0),
-        SD_BUS_PROPERTY("Name",                  "s", property_get_name,      0, 0),
-        SD_BUS_PROPERTY("Path",                  "s", property_get_path,      0, 0),
-        SD_BUS_PROPERTY("Type",                  "s", property_get_type,      0, 0),
-        SD_BUS_PROPERTY("ReadOnly",              "b", property_get_read_only, 0, 0),
-        SD_BUS_PROPERTY("CreationTimestamp",     "t", property_get_crtime,    0, 0),
-        SD_BUS_PROPERTY("ModificationTimestamp", "t", property_get_mtime,     0, 0),
+        SD_BUS_PROPERTY("Name",                  "s", property_get_name,            0, 0),
+        SD_BUS_PROPERTY("Path",                  "s", property_get_path,            0, 0),
+        SD_BUS_PROPERTY("Type",                  "s", property_get_type,            0, 0),
+        SD_BUS_PROPERTY("ReadOnly",              "b", property_get_read_only,       0, 0),
+        SD_BUS_PROPERTY("CreationTimestamp",     "t", property_get_crtime,          0, 0),
+        SD_BUS_PROPERTY("ModificationTimestamp", "t", property_get_mtime,           0, 0),
+        SD_BUS_PROPERTY("Size",                  "t", property_get_size,            0, 0),
+        SD_BUS_PROPERTY("Limit",                 "t", property_get_limit,           0, 0),
+        SD_BUS_PROPERTY("SizeExclusive",         "t", property_get_size_exclusive,  0, 0),
+        SD_BUS_PROPERTY("LimitExclusive",        "t", property_get_limit_exclusive, 0, 0),
         SD_BUS_METHOD("Remove", NULL, NULL, method_remove, 0),
         SD_BUS_METHOD("Rename", "s", NULL, method_rename, 0),
         SD_BUS_METHOD("Clone", "sb", NULL, method_clone, 0),