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-rw-r--r--src/machine/machinectl.c46
-rw-r--r--src/machine/machined-dbus.c88
-rw-r--r--src/shared/machine-image.c12
-rw-r--r--src/shared/machine-image.h26
4 files changed, 164 insertions, 8 deletions
diff --git a/src/machine/machinectl.c b/src/machine/machinectl.c
index 1d3264a1de..35177aa29e 100644
--- a/src/machine/machinectl.c
+++ b/src/machine/machinectl.c
@@ -2338,6 +2338,50 @@ static int set_limit(int argc, char *argv[], void *userdata) {
return 0;
}
+static int clean_images(int argc, char *argv[], void *userdata) {
+ _cleanup_(sd_bus_message_unrefp) sd_bus_message *reply = NULL;
+ _cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL;
+ uint64_t usage, total = 0;
+ char fb[FORMAT_BYTES_MAX];
+ sd_bus *bus = userdata;
+ const char *name;
+ unsigned c = 0;
+ int r;
+
+ r = sd_bus_call_method(
+ bus,
+ "org.freedesktop.machine1",
+ "/org/freedesktop/machine1",
+ "org.freedesktop.machine1.Manager",
+ "CleanPool",
+ &error,
+ &reply,
+ "s", arg_all ? "all" : "hidden");
+ if (r < 0)
+ return log_error_errno(r, "Could not clean pool: %s", bus_error_message(&error, r));
+
+ r = sd_bus_message_enter_container(reply, 'a', "(st)");
+ if (r < 0)
+ return bus_log_parse_error(r);
+
+ while ((r = sd_bus_message_read(reply, "(st)", &name, &usage)) > 0) {
+ log_info("Removed image '%s'. Freed exclusive disk space: %s",
+ name, format_bytes(fb, sizeof(fb), usage));
+
+ total += usage;
+ c++;
+ }
+
+ r = sd_bus_message_exit_container(reply);
+ if (r < 0)
+ return bus_log_parse_error(r);
+
+ log_info("Removed %u images in total. Total freed exclusive disk space %s.",
+ c, format_bytes(fb, sizeof(fb), total));
+
+ return 0;
+}
+
static int help(int argc, char *argv[], void *userdata) {
printf("%s [OPTIONS...] {COMMAND} ...\n\n"
@@ -2396,6 +2440,7 @@ static int help(int argc, char *argv[], void *userdata) {
" read-only NAME [BOOL] Mark or unmark image read-only\n"
" remove NAME... Remove an image\n"
" set-limit [NAME] BYTES Set image or pool size limit (disk quota)\n\n"
+ " clean Remove hidden (or all) images\n"
"Image Transfer Commands:\n"
" pull-tar URL [NAME] Download a TAR container image\n"
" pull-raw URL [NAME] Download a RAW container or VM image\n"
@@ -2635,6 +2680,7 @@ static int machinectl_main(int argc, char *argv[], sd_bus *bus) {
{ "list-transfers", VERB_ANY, 1, 0, list_transfers },
{ "cancel-transfer", 2, VERB_ANY, 0, cancel_transfer },
{ "set-limit", 2, 3, 0, set_limit },
+ { "clean", VERB_ANY, 1, 0, clean_images },
{}
};
diff --git a/src/machine/machined-dbus.c b/src/machine/machined-dbus.c
index 20894433e7..c9639c3cf2 100644
--- a/src/machine/machined-dbus.c
+++ b/src/machine/machined-dbus.c
@@ -802,6 +802,93 @@ static int method_mark_image_read_only(sd_bus_message *message, void *userdata,
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;
@@ -1144,6 +1231,7 @@ const sd_bus_vtable manager_vtable[] = {
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),
diff --git a/src/shared/machine-image.c b/src/shared/machine-image.c
index d2f1c4a40c..bebfc40efe 100644
--- a/src/shared/machine-image.c
+++ b/src/shared/machine-image.c
@@ -401,8 +401,7 @@ int image_remove(Image *i) {
assert(i);
- if (path_equal(i->path, "/") ||
- path_startswith(i->path, "/usr"))
+ if (IMAGE_IS_VENDOR(i) || IMAGE_IS_HOST(i))
return -EROFS;
settings = image_settings_path(i);
@@ -474,8 +473,7 @@ int image_rename(Image *i, const char *new_name) {
if (!image_name_is_valid(new_name))
return -EINVAL;
- if (path_equal(i->path, "/") ||
- path_startswith(i->path, "/usr"))
+ if (IMAGE_IS_VENDOR(i) || IMAGE_IS_HOST(i))
return -EROFS;
settings = image_settings_path(i);
@@ -642,8 +640,7 @@ int image_read_only(Image *i, bool b) {
int r;
assert(i);
- if (path_equal(i->path, "/") ||
- path_startswith(i->path, "/usr"))
+ if (IMAGE_IS_VENDOR(i) || IMAGE_IS_HOST(i))
return -EROFS;
/* Make sure we don't interfere with a running nspawn */
@@ -751,8 +748,7 @@ int image_path_lock(const char *path, int operation, LockFile *global, LockFile
int image_set_limit(Image *i, uint64_t referenced_max) {
assert(i);
- if (path_equal(i->path, "/") ||
- path_startswith(i->path, "/usr"))
+ if (IMAGE_IS_VENDOR(i) || IMAGE_IS_HOST(i))
return -EROFS;
if (i->type != IMAGE_SUBVOLUME)
diff --git a/src/shared/machine-image.h b/src/shared/machine-image.h
index 31b720d50c..7410168c4f 100644
--- a/src/shared/machine-image.h
+++ b/src/shared/machine-image.h
@@ -25,6 +25,8 @@
#include "hashmap.h"
#include "lockfile-util.h"
#include "macro.h"
+#include "path-util.h"
+#include "string-util.h"
#include "time-util.h"
typedef enum ImageType {
@@ -75,3 +77,27 @@ int image_path_lock(const char *path, int operation, LockFile *global, LockFile
int image_name_lock(const char *name, int operation, LockFile *ret);
int image_set_limit(Image *i, uint64_t referenced_max);
+
+static inline bool IMAGE_IS_HIDDEN(const struct Image *i) {
+ assert(i);
+
+ return i->name && i->name[0] == '.';
+}
+
+static inline bool IMAGE_IS_VENDOR(const struct Image *i) {
+ assert(i);
+
+ return i->path && path_startswith(i->path, "/usr");
+}
+
+static inline bool IMAGE_IS_HOST(const struct Image *i) {
+ assert(i);
+
+ if (i->name && streq(i->name, ".host"))
+ return true;
+
+ if (i->path && path_equal(i->path, "/"))
+ return true;
+
+ return false;
+}
generated by cgit v1.2.3-54-g00ecf (git 2.45.2) at 2024-12-12 11:10:06 +0000