+++ /dev/null
-/*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/
-
-/***
- This file is part of systemd.
-
- Copyright 2014 Lennart Poettering
-
- systemd is free software; you can redistribute it and/or modify it
- under the terms of the GNU Lesser General Public License as published by
- the Free Software Foundation; either version 2.1 of the License, or
- (at your option) any later version.
-
- systemd is distributed in the hope that it will be useful, but
- WITHOUT ANY WARRANTY; without even the implied warranty of
- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- Lesser General Public License for more details.
-
- You should have received a copy of the GNU Lesser General Public License
- along with systemd; If not, see <http://www.gnu.org/licenses/>.
-***/
-
-#include "bus-label.h"
-#include "strv.h"
-#include "bus-util.h"
-#include "machine-image.h"
-#include "image-dbus.h"
-
-static BUS_DEFINE_PROPERTY_GET_ENUM(property_get_type, image_type, ImageType);
-
-int bus_image_method_remove(
- sd_bus *bus,
- sd_bus_message *message,
- void *userdata,
- sd_bus_error *error) {
-
- Image *image = userdata;
- Manager *m = image->userdata;
- int r;
-
- assert(bus);
- assert(message);
- assert(image);
-
- r = bus_verify_polkit_async(
- message,
- CAP_SYS_ADMIN,
- "org.freedesktop.machine1.manage-images",
- false,
- UID_INVALID,
- &m->polkit_registry,
- error);
- if (r < 0)
- return r;
- if (r == 0)
- return 1; /* Will call us back */
-
- r = image_remove(image);
- if (r < 0)
- return r;
-
- return sd_bus_reply_method_return(message, NULL);
-}
-
-int bus_image_method_rename(
- sd_bus *bus,
- sd_bus_message *message,
- void *userdata,
- sd_bus_error *error) {
-
- Image *image = userdata;
- Manager *m = image->userdata;
- const char *new_name;
- int r;
-
- assert(bus);
- assert(message);
- assert(image);
-
- r = sd_bus_message_read(message, "s", &new_name);
- if (r < 0)
- return r;
-
- if (!image_name_is_valid(new_name))
- return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Image name '%s' is invalid.", new_name);
-
- r = bus_verify_polkit_async(
- message,
- CAP_SYS_ADMIN,
- "org.freedesktop.machine1.manage-images",
- false,
- UID_INVALID,
- &m->polkit_registry,
- error);
- if (r < 0)
- return r;
- if (r == 0)
- return 1; /* Will call us back */
-
- r = image_rename(image, new_name);
- if (r < 0)
- return r;
-
- return sd_bus_reply_method_return(message, NULL);
-}
-
-int bus_image_method_clone(
- sd_bus *bus,
- sd_bus_message *message,
- void *userdata,
- sd_bus_error *error) {
-
- Image *image = userdata;
- Manager *m = image->userdata;
- const char *new_name;
- int r, read_only;
-
- assert(bus);
- assert(message);
- assert(image);
-
- r = sd_bus_message_read(message, "sb", &new_name, &read_only);
- if (r < 0)
- return r;
-
- if (!image_name_is_valid(new_name))
- return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Image name '%s' is invalid.", new_name);
-
- r = bus_verify_polkit_async(
- message,
- CAP_SYS_ADMIN,
- "org.freedesktop.machine1.manage-images",
- false,
- UID_INVALID,
- &m->polkit_registry,
- error);
- if (r < 0)
- return r;
- if (r == 0)
- return 1; /* Will call us back */
-
- r = image_clone(image, new_name, read_only);
- if (r < 0)
- return r;
-
- return sd_bus_reply_method_return(message, NULL);
-}
-
-int bus_image_method_mark_read_only(
- sd_bus *bus,
- sd_bus_message *message,
- void *userdata,
- sd_bus_error *error) {
-
- Image *image = userdata;
- Manager *m = image->userdata;
- int r, read_only;
-
- assert(bus);
- assert(message);
-
- r = sd_bus_message_read(message, "b", &read_only);
- if (r < 0)
- return r;
-
- r = bus_verify_polkit_async(
- message,
- CAP_SYS_ADMIN,
- "org.freedesktop.machine1.manage-images",
- false,
- UID_INVALID,
- &m->polkit_registry,
- error);
- if (r < 0)
- return r;
- if (r == 0)
- return 1; /* Will call us back */
-
- r = image_read_only(image, read_only);
- if (r < 0)
- return r;
-
- return sd_bus_reply_method_return(message, NULL);
-}
-
-int bus_image_method_set_limit(
- sd_bus *bus,
- sd_bus_message *message,
- void *userdata,
- sd_bus_error *error) {
-
- Image *image = userdata;
- Manager *m = image->userdata;
- uint64_t limit;
- int r;
-
- assert(bus);
- assert(message);
-
- r = sd_bus_message_read(message, "t", &limit);
- if (r < 0)
- return r;
-
- r = bus_verify_polkit_async(
- message,
- CAP_SYS_ADMIN,
- "org.freedesktop.machine1.manage-images",
- false,
- UID_INVALID,
- &m->polkit_registry,
- error);
- if (r < 0)
- return r;
- if (r == 0)
- return 1; /* Will call us back */
-
- r = image_set_limit(image, limit);
- if (r < 0)
- return r;
-
- return sd_bus_reply_method_return(message, NULL);
-}
-
-const sd_bus_vtable image_vtable[] = {
- SD_BUS_VTABLE_START(0),
- SD_BUS_PROPERTY("Name", "s", NULL, offsetof(Image, name), 0),
- SD_BUS_PROPERTY("Path", "s", NULL, offsetof(Image, path), 0),
- SD_BUS_PROPERTY("Type", "s", property_get_type, offsetof(Image, type), 0),
- SD_BUS_PROPERTY("ReadOnly", "b", bus_property_get_bool, offsetof(Image, read_only), 0),
- SD_BUS_PROPERTY("CreationTimestamp", "t", NULL, offsetof(Image, crtime), 0),
- SD_BUS_PROPERTY("ModificationTimestamp", "t", NULL, offsetof(Image, mtime), 0),
- SD_BUS_PROPERTY("Usage", "t", NULL, offsetof(Image, usage), 0),
- SD_BUS_PROPERTY("Limit", "t", NULL, offsetof(Image, limit), 0),
- SD_BUS_PROPERTY("UsageExclusive", "t", NULL, offsetof(Image, usage_exclusive), 0),
- SD_BUS_PROPERTY("LimitExclusive", "t", NULL, offsetof(Image, limit_exclusive), 0),
- SD_BUS_METHOD("Remove", NULL, NULL, bus_image_method_remove, SD_BUS_VTABLE_UNPRIVILEGED),
- SD_BUS_METHOD("Rename", "s", NULL, bus_image_method_rename, SD_BUS_VTABLE_UNPRIVILEGED),
- SD_BUS_METHOD("Clone", "sb", NULL, bus_image_method_clone, SD_BUS_VTABLE_UNPRIVILEGED),
- SD_BUS_METHOD("MarkReadOnly", "b", NULL, bus_image_method_mark_read_only, SD_BUS_VTABLE_UNPRIVILEGED),
- SD_BUS_METHOD("SetLimit", "t", NULL, bus_image_method_set_limit, SD_BUS_VTABLE_UNPRIVILEGED),
- SD_BUS_VTABLE_END
-};
-
-static int image_flush_cache(sd_event_source *s, void *userdata) {
- Manager *m = userdata;
- Image *i;
-
- assert(s);
- assert(m);
-
- while ((i = hashmap_steal_first(m->image_cache)))
- image_unref(i);
-
- return 0;
-}
-
-int image_object_find(sd_bus *bus, const char *path, const char *interface, void *userdata, void **found, sd_bus_error *error) {
- _cleanup_free_ char *e = NULL;
- Manager *m = userdata;
- Image *image = NULL;
- const char *p;
- int r;
-
- assert(bus);
- assert(path);
- assert(interface);
- assert(found);
-
- p = startswith(path, "/org/freedesktop/machine1/image/");
- if (!p)
- return 0;
-
- e = bus_label_unescape(p);
- if (!e)
- return -ENOMEM;
-
- image = hashmap_get(m->image_cache, e);
- if (image) {
- *found = image;
- return 1;
- }
-
- r = hashmap_ensure_allocated(&m->image_cache, &string_hash_ops);
- if (r < 0)
- return r;
-
- if (!m->image_cache_defer_event) {
- r = sd_event_add_defer(m->event, &m->image_cache_defer_event, image_flush_cache, m);
- if (r < 0)
- return r;
-
- r = sd_event_source_set_priority(m->image_cache_defer_event, SD_EVENT_PRIORITY_IDLE);
- if (r < 0)
- return r;
- }
-
- r = sd_event_source_set_enabled(m->image_cache_defer_event, SD_EVENT_ONESHOT);
- if (r < 0)
- return r;
-
- r = image_find(e, &image);
- if (r <= 0)
- return r;
-
- image->userdata = m;
-
- r = hashmap_put(m->image_cache, image->name, image);
- if (r < 0) {
- image_unref(image);
- return r;
- }
-
- *found = image;
- return 1;
-}
-
-char *image_bus_path(const char *name) {
- _cleanup_free_ char *e = NULL;
-
- assert(name);
-
- e = bus_label_escape(name);
- if (!e)
- return NULL;
-
- return strappend("/org/freedesktop/machine1/image/", e);
-}
-
-int image_node_enumerator(sd_bus *bus, const char *path, void *userdata, char ***nodes, sd_bus_error *error) {
- _cleanup_(image_hashmap_freep) Hashmap *images = NULL;
- _cleanup_strv_free_ char **l = NULL;
- Image *image;
- Iterator i;
- int r;
-
- assert(bus);
- assert(path);
- assert(nodes);
-
- images = hashmap_new(&string_hash_ops);
- if (!images)
- return -ENOMEM;
-
- r = image_discover(images);
- if (r < 0)
- return r;
-
- HASHMAP_FOREACH(image, images, i) {
- char *p;
-
- p = image_bus_path(image->name);
- if (!p)
- return -ENOMEM;
-
- r = strv_consume(&l, p);
- if (r < 0)
- return r;
- }
-
- *nodes = l;
- l = NULL;
-
- return 1;
-}
~ianmdlvl / elogind.git / blobdiff