-/*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/
-
/***
This file is part of systemd.
#include "formats-util.h"
#include "hostname-util.h"
#include "image-dbus.h"
+#include "io-util.h"
#include "machine-dbus.h"
#include "machine-image.h"
#include "machine-pool.h"
return bus_image_method_mark_read_only(message, i, error);
}
+static int method_clean_pool(sd_bus_message *message, void *userdata, sd_bus_error *error) {
+ enum {
+ REMOVE_ALL,
+ REMOVE_HIDDEN,
+ } mode;
+
+ _cleanup_(sd_bus_message_unrefp) sd_bus_message *reply = NULL;
+ _cleanup_(image_hashmap_freep) Hashmap *images = NULL;
+ Manager *m = userdata;
+ Image *image;
+ const char *mm;
+ Iterator i;
+ int r;
+
+ assert(message);
+
+ r = sd_bus_message_read(message, "s", &mm);
+ if (r < 0)
+ return r;
+
+ if (streq(mm, "all"))
+ mode = REMOVE_ALL;
+ else if (streq(mm, "hidden"))
+ mode = REMOVE_HIDDEN;
+ else
+ return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Unknown mode '%s'.", mm);
+
+ r = bus_verify_polkit_async(
+ message,
+ CAP_SYS_ADMIN,
+ "org.freedesktop.machine1.manage-machines",
+ NULL,
+ false,
+ UID_INVALID,
+ &m->polkit_registry,
+ error);
+ if (r < 0)
+ return r;
+ if (r == 0)
+ return 1; /* Will call us back */
+
+ images = hashmap_new(&string_hash_ops);
+ if (!images)
+ return -ENOMEM;
+
+ r = image_discover(images);
+ if (r < 0)
+ return r;
+
+ r = sd_bus_message_new_method_return(message, &reply);
+ if (r < 0)
+ return r;
+
+ r = sd_bus_message_open_container(reply, 'a', "(st)");
+ if (r < 0)
+ return r;
+
+ HASHMAP_FOREACH(image, images, i) {
+
+ /* We can't remove vendor images (i.e. those in /usr) */
+ if (IMAGE_IS_VENDOR(image))
+ continue;
+
+ if (IMAGE_IS_HOST(image))
+ continue;
+
+ if (mode == REMOVE_HIDDEN && !IMAGE_IS_HIDDEN(image))
+ continue;
+
+ r = image_remove(image);
+ if (r == -EBUSY) /* keep images that are currently being used. */
+ continue;
+ if (r < 0)
+ return sd_bus_error_set_errnof(error, r, "Failed to remove image %s: %m", image->name);
+
+ r = sd_bus_message_append(reply, "(st)", image->name, image->usage_exclusive);
+ if (r < 0)
+ return r;
+ }
+
+ r = sd_bus_message_close_container(reply);
+ if (r < 0)
+ return r;
+
+ return sd_bus_send(NULL, reply, NULL);
+}
+
static int method_set_pool_limit(sd_bus_message *message, void *userdata, sd_bus_error *error) {
Manager *m = userdata;
uint64_t limit;
r = sd_bus_message_read(message, "t", &limit);
if (r < 0)
return r;
+ if (!FILE_SIZE_VALID_OR_INFINITY(limit))
+ return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "New limit out of range");
r = bus_verify_polkit_async(
message,
if (r < 0)
return r;
- r = btrfs_resize_loopback("/var/lib/machines", limit, false);
- if (r == -ENOTTY)
- return sd_bus_error_setf(error, SD_BUS_ERROR_NOT_SUPPORTED, "Quota is only supported on btrfs.");
- if (r < 0 && r != -ENODEV) /* ignore ENODEV, as that's what is returned if the file system is not on loopback */
- return sd_bus_error_set_errnof(error, r, "Failed to adjust loopback limit: %m");
+ /* Resize the backing loopback device, if there is one, except if we asked to drop any limit */
+ if (limit != (uint64_t) -1) {
+ r = btrfs_resize_loopback("/var/lib/machines", limit, false);
+ if (r == -ENOTTY)
+ return sd_bus_error_setf(error, SD_BUS_ERROR_NOT_SUPPORTED, "Quota is only supported on btrfs.");
+ if (r < 0 && r != -ENODEV) /* ignore ENODEV, as that's what is returned if the file system is not on loopback */
+ return sd_bus_error_set_errnof(error, r, "Failed to adjust loopback limit: %m");
+ }
(void) btrfs_qgroup_set_limit("/var/lib/machines", 0, limit);
SD_BUS_METHOD("MarkImageReadOnly", "sb", NULL, method_mark_image_read_only, SD_BUS_VTABLE_UNPRIVILEGED),
SD_BUS_METHOD("SetPoolLimit", "t", NULL, method_set_pool_limit, SD_BUS_VTABLE_UNPRIVILEGED),
SD_BUS_METHOD("SetImageLimit", "st", NULL, method_set_image_limit, SD_BUS_VTABLE_UNPRIVILEGED),
+ SD_BUS_METHOD("CleanPool", "s", "a(st)", method_clean_pool, SD_BUS_VTABLE_UNPRIVILEGED),
SD_BUS_METHOD("MapFromMachineUser", "su", "u", method_map_from_machine_user, SD_BUS_VTABLE_UNPRIVILEGED),
SD_BUS_METHOD("MapToMachineUser", "u", "sou", method_map_to_machine_user, SD_BUS_VTABLE_UNPRIVILEGED),
SD_BUS_METHOD("MapFromMachineGroup", "su", "u", method_map_from_machine_group, SD_BUS_VTABLE_UNPRIVILEGED),
r = unit_name_from_dbus_path(path, &unit);
if (r == -EINVAL) /* not for a unit */
return 0;
- if (r < 0){
+ if (r < 0) {
log_oom();
return 0;
}
if (r < 0)
return r;
- r = sd_bus_message_append(m, "(sv)", "TasksMax", "t", 8192);
+ r = sd_bus_message_append(m, "(sv)", "TasksMax", "t", UINT64_C(16384));
if (r < 0)
return bus_log_create_error(r);