diff options
Diffstat (limited to 'src/machine/machined-dbus.c')
| -rw-r--r-- | src/machine/machined-dbus.c | 1806 |
1 files changed, 0 insertions, 1806 deletions
diff --git a/src/machine/machined-dbus.c b/src/machine/machined-dbus.c deleted file mode 100644 index e40f40a263..0000000000 --- a/src/machine/machined-dbus.c +++ /dev/null @@ -1,1806 +0,0 @@ -/*** - This file is part of systemd. - - Copyright 2011 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 <errno.h> -#include <string.h> -#include <unistd.h> - -#include "sd-id128.h" - -#include "alloc-util.h" -#include "btrfs-util.h" -#include "bus-common-errors.h" -#include "bus-util.h" -#include "cgroup-util.h" -#include "fd-util.h" -#include "fileio.h" -#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" -#include "machined.h" -#include "path-util.h" -#include "process-util.h" -#include "stdio-util.h" -#include "strv.h" -#include "unit-name.h" -#include "user-util.h" - -static int property_get_pool_path( - sd_bus *bus, - const char *path, - const char *interface, - const char *property, - sd_bus_message *reply, - void *userdata, - sd_bus_error *error) { - - assert(bus); - assert(reply); - - return sd_bus_message_append(reply, "s", "/var/lib/machines"); -} - -static int property_get_pool_usage( - sd_bus *bus, - const char *path, - const char *interface, - const char *property, - sd_bus_message *reply, - void *userdata, - sd_bus_error *error) { - - _cleanup_close_ int fd = -1; - uint64_t usage = (uint64_t) -1; - struct stat st; - - assert(bus); - assert(reply); - - /* We try to read the quota info from /var/lib/machines, as - * well as the usage of the loopback file - * /var/lib/machines.raw, and pick the larger value. */ - - fd = open("/var/lib/machines", O_RDONLY|O_CLOEXEC|O_DIRECTORY); - if (fd >= 0) { - BtrfsQuotaInfo q; - - if (btrfs_subvol_get_subtree_quota_fd(fd, 0, &q) >= 0) - usage = q.referenced; - } - - if (stat("/var/lib/machines.raw", &st) >= 0) { - if (usage == (uint64_t) -1 || st.st_blocks * 512ULL > usage) - usage = st.st_blocks * 512ULL; - } - - return sd_bus_message_append(reply, "t", usage); -} - -static int property_get_pool_limit( - sd_bus *bus, - const char *path, - const char *interface, - const char *property, - sd_bus_message *reply, - void *userdata, - sd_bus_error *error) { - - _cleanup_close_ int fd = -1; - uint64_t size = (uint64_t) -1; - struct stat st; - - assert(bus); - assert(reply); - - /* We try to read the quota limit from /var/lib/machines, as - * well as the size of the loopback file - * /var/lib/machines.raw, and pick the smaller value. */ - - fd = open("/var/lib/machines", O_RDONLY|O_CLOEXEC|O_DIRECTORY); - if (fd >= 0) { - BtrfsQuotaInfo q; - - if (btrfs_subvol_get_subtree_quota_fd(fd, 0, &q) >= 0) - size = q.referenced_max; - } - - if (stat("/var/lib/machines.raw", &st) >= 0) { - if (size == (uint64_t) -1 || (uint64_t) st.st_size < size) - size = st.st_size; - } - - return sd_bus_message_append(reply, "t", size); -} - -static int method_get_machine(sd_bus_message *message, void *userdata, sd_bus_error *error) { - _cleanup_free_ char *p = NULL; - Manager *m = userdata; - Machine *machine; - const char *name; - int r; - - assert(message); - assert(m); - - r = sd_bus_message_read(message, "s", &name); - if (r < 0) - return r; - - machine = hashmap_get(m->machines, name); - if (!machine) - return sd_bus_error_setf(error, BUS_ERROR_NO_SUCH_MACHINE, "No machine '%s' known", name); - - p = machine_bus_path(machine); - if (!p) - return -ENOMEM; - - return sd_bus_reply_method_return(message, "o", p); -} - -static int method_get_image(sd_bus_message *message, void *userdata, sd_bus_error *error) { - _cleanup_free_ char *p = NULL; - Manager *m = userdata; - const char *name; - int r; - - assert(message); - assert(m); - - r = sd_bus_message_read(message, "s", &name); - if (r < 0) - return r; - - r = image_find(name, NULL); - if (r == 0) - return sd_bus_error_setf(error, BUS_ERROR_NO_SUCH_IMAGE, "No image '%s' known", name); - if (r < 0) - return r; - - p = image_bus_path(name); - if (!p) - return -ENOMEM; - - return sd_bus_reply_method_return(message, "o", p); -} - -static int method_get_machine_by_pid(sd_bus_message *message, void *userdata, sd_bus_error *error) { - _cleanup_free_ char *p = NULL; - Manager *m = userdata; - Machine *machine = NULL; - pid_t pid; - int r; - - assert(message); - assert(m); - - assert_cc(sizeof(pid_t) == sizeof(uint32_t)); - - r = sd_bus_message_read(message, "u", &pid); - if (r < 0) - return r; - - if (pid < 0) - return -EINVAL; - - if (pid == 0) { - _cleanup_(sd_bus_creds_unrefp) sd_bus_creds *creds = NULL; - - r = sd_bus_query_sender_creds(message, SD_BUS_CREDS_PID, &creds); - if (r < 0) - return r; - - r = sd_bus_creds_get_pid(creds, &pid); - if (r < 0) - return r; - } - - r = manager_get_machine_by_pid(m, pid, &machine); - if (r < 0) - return r; - if (!machine) - return sd_bus_error_setf(error, BUS_ERROR_NO_MACHINE_FOR_PID, "PID "PID_FMT" does not belong to any known machine", pid); - - p = machine_bus_path(machine); - if (!p) - return -ENOMEM; - - return sd_bus_reply_method_return(message, "o", p); -} - -static int method_list_machines(sd_bus_message *message, void *userdata, sd_bus_error *error) { - _cleanup_(sd_bus_message_unrefp) sd_bus_message *reply = NULL; - Manager *m = userdata; - Machine *machine; - Iterator i; - int r; - - assert(message); - assert(m); - - r = sd_bus_message_new_method_return(message, &reply); - if (r < 0) - return sd_bus_error_set_errno(error, r); - - r = sd_bus_message_open_container(reply, 'a', "(ssso)"); - if (r < 0) - return sd_bus_error_set_errno(error, r); - - HASHMAP_FOREACH(machine, m->machines, i) { - _cleanup_free_ char *p = NULL; - - p = machine_bus_path(machine); - if (!p) - return -ENOMEM; - - r = sd_bus_message_append(reply, "(ssso)", - machine->name, - strempty(machine_class_to_string(machine->class)), - machine->service, - p); - if (r < 0) - return sd_bus_error_set_errno(error, r); - } - - r = sd_bus_message_close_container(reply); - if (r < 0) - return sd_bus_error_set_errno(error, r); - - return sd_bus_send(NULL, reply, NULL); -} - -static int method_create_or_register_machine(Manager *manager, sd_bus_message *message, bool read_network, Machine **_m, sd_bus_error *error) { - const char *name, *service, *class, *root_directory; - const int32_t *netif = NULL; - MachineClass c; - uint32_t leader; - sd_id128_t id; - const void *v; - Machine *m; - size_t n, n_netif = 0; - int r; - - assert(manager); - assert(message); - assert(_m); - - r = sd_bus_message_read(message, "s", &name); - if (r < 0) - return r; - if (!machine_name_is_valid(name)) - return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Invalid machine name"); - - r = sd_bus_message_read_array(message, 'y', &v, &n); - if (r < 0) - return r; - if (n == 0) - id = SD_ID128_NULL; - else if (n == 16) - memcpy(&id, v, n); - else - return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Invalid machine ID parameter"); - - r = sd_bus_message_read(message, "ssus", &service, &class, &leader, &root_directory); - if (r < 0) - return r; - - if (read_network) { - size_t i; - - r = sd_bus_message_read_array(message, 'i', (const void**) &netif, &n_netif); - if (r < 0) - return r; - - n_netif /= sizeof(int32_t); - - for (i = 0; i < n_netif; i++) { - if (netif[i] <= 0) - return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Invalid network interface index %i", netif[i]); - } - } - - if (isempty(class)) - c = _MACHINE_CLASS_INVALID; - else { - c = machine_class_from_string(class); - if (c < 0) - return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Invalid machine class parameter"); - } - - if (leader == 1) - return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Invalid leader PID"); - - if (!isempty(root_directory) && !path_is_absolute(root_directory)) - return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Root directory must be empty or an absolute path"); - - if (leader == 0) { - _cleanup_(sd_bus_creds_unrefp) sd_bus_creds *creds = NULL; - - r = sd_bus_query_sender_creds(message, SD_BUS_CREDS_PID, &creds); - if (r < 0) - return r; - - assert_cc(sizeof(uint32_t) == sizeof(pid_t)); - - r = sd_bus_creds_get_pid(creds, (pid_t*) &leader); - if (r < 0) - return r; - } - - if (hashmap_get(manager->machines, name)) - return sd_bus_error_setf(error, BUS_ERROR_MACHINE_EXISTS, "Machine '%s' already exists", name); - - r = manager_add_machine(manager, name, &m); - if (r < 0) - return r; - - m->leader = leader; - m->class = c; - m->id = id; - - if (!isempty(service)) { - m->service = strdup(service); - if (!m->service) { - r = -ENOMEM; - goto fail; - } - } - - if (!isempty(root_directory)) { - m->root_directory = strdup(root_directory); - if (!m->root_directory) { - r = -ENOMEM; - goto fail; - } - } - - if (n_netif > 0) { - assert_cc(sizeof(int32_t) == sizeof(int)); - m->netif = memdup(netif, sizeof(int32_t) * n_netif); - if (!m->netif) { - r = -ENOMEM; - goto fail; - } - - m->n_netif = n_netif; - } - - *_m = m; - - return 1; - -fail: - machine_add_to_gc_queue(m); - return r; -} - -static int method_create_machine_internal(sd_bus_message *message, bool read_network, void *userdata, sd_bus_error *error) { - Manager *manager = userdata; - Machine *m = NULL; - int r; - - assert(message); - assert(manager); - - r = method_create_or_register_machine(manager, message, read_network, &m, error); - if (r < 0) - return r; - - r = sd_bus_message_enter_container(message, 'a', "(sv)"); - if (r < 0) - goto fail; - - r = machine_start(m, message, error); - if (r < 0) - goto fail; - - m->create_message = sd_bus_message_ref(message); - return 1; - -fail: - machine_add_to_gc_queue(m); - return r; -} - -static int method_create_machine_with_network(sd_bus_message *message, void *userdata, sd_bus_error *error) { - return method_create_machine_internal(message, true, userdata, error); -} - -static int method_create_machine(sd_bus_message *message, void *userdata, sd_bus_error *error) { - return method_create_machine_internal(message, false, userdata, error); -} - -static int method_register_machine_internal(sd_bus_message *message, bool read_network, void *userdata, sd_bus_error *error) { - Manager *manager = userdata; - _cleanup_free_ char *p = NULL; - Machine *m = NULL; - int r; - - assert(message); - assert(manager); - - r = method_create_or_register_machine(manager, message, read_network, &m, error); - if (r < 0) - return r; - - r = cg_pid_get_unit(m->leader, &m->unit); - if (r < 0) { - r = sd_bus_error_set_errnof(error, r, - "Failed to determine unit of process "PID_FMT" : %m", - m->leader); - goto fail; - } - - r = machine_start(m, NULL, error); - if (r < 0) - goto fail; - - p = machine_bus_path(m); - if (!p) { - r = -ENOMEM; - goto fail; - } - - return sd_bus_reply_method_return(message, "o", p); - -fail: - machine_add_to_gc_queue(m); - return r; -} - -static int method_register_machine_with_network(sd_bus_message *message, void *userdata, sd_bus_error *error) { - return method_register_machine_internal(message, true, userdata, error); -} - -static int method_register_machine(sd_bus_message *message, void *userdata, sd_bus_error *error) { - return method_register_machine_internal(message, false, userdata, error); -} - -static int method_terminate_machine(sd_bus_message *message, void *userdata, sd_bus_error *error) { - Manager *m = userdata; - Machine *machine; - const char *name; - int r; - - assert(message); - assert(m); - - r = sd_bus_message_read(message, "s", &name); - if (r < 0) - return sd_bus_error_set_errno(error, r); - - machine = hashmap_get(m->machines, name); - if (!machine) - return sd_bus_error_setf(error, BUS_ERROR_NO_SUCH_MACHINE, "No machine '%s' known", name); - - return bus_machine_method_terminate(message, machine, error); -} - -static int method_kill_machine(sd_bus_message *message, void *userdata, sd_bus_error *error) { - Manager *m = userdata; - Machine *machine; - const char *name; - int r; - - assert(message); - assert(m); - - r = sd_bus_message_read(message, "s", &name); - if (r < 0) - return sd_bus_error_set_errno(error, r); - - machine = hashmap_get(m->machines, name); - if (!machine) - return sd_bus_error_setf(error, BUS_ERROR_NO_SUCH_MACHINE, "No machine '%s' known", name); - - return bus_machine_method_kill(message, machine, error); -} - -static int method_get_machine_addresses(sd_bus_message *message, void *userdata, sd_bus_error *error) { - Manager *m = userdata; - Machine *machine; - const char *name; - int r; - - assert(message); - assert(m); - - r = sd_bus_message_read(message, "s", &name); - if (r < 0) - return sd_bus_error_set_errno(error, r); - - machine = hashmap_get(m->machines, name); - if (!machine) - return sd_bus_error_setf(error, BUS_ERROR_NO_SUCH_MACHINE, "No machine '%s' known", name); - - return bus_machine_method_get_addresses(message, machine, error); -} - -static int method_get_machine_os_release(sd_bus_message *message, void *userdata, sd_bus_error *error) { - Manager *m = userdata; - Machine *machine; - const char *name; - int r; - - assert(message); - assert(m); - - r = sd_bus_message_read(message, "s", &name); - if (r < 0) - return sd_bus_error_set_errno(error, r); - - machine = hashmap_get(m->machines, name); - if (!machine) - return sd_bus_error_setf(error, BUS_ERROR_NO_SUCH_MACHINE, "No machine '%s' known", name); - - return bus_machine_method_get_os_release(message, machine, error); -} - -static int method_list_images(sd_bus_message *message, void *userdata, sd_bus_error *error) { - _cleanup_(sd_bus_message_unrefp) sd_bus_message *reply = NULL; - _cleanup_(image_hashmap_freep) Hashmap *images = NULL; - Manager *m = userdata; - Image *image; - Iterator i; - int r; - - assert(message); - assert(m); - - 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', "(ssbttto)"); - if (r < 0) - return r; - - HASHMAP_FOREACH(image, images, i) { - _cleanup_free_ char *p = NULL; - - p = image_bus_path(image->name); - if (!p) - return -ENOMEM; - - r = sd_bus_message_append(reply, "(ssbttto)", - image->name, - image_type_to_string(image->type), - image->read_only, - image->crtime, - image->mtime, - image->usage, - p); - 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_open_machine_pty(sd_bus_message *message, void *userdata, sd_bus_error *error) { - Manager *m = userdata; - Machine *machine; - const char *name; - int r; - - assert(message); - assert(m); - - r = sd_bus_message_read(message, "s", &name); - if (r < 0) - return sd_bus_error_set_errno(error, r); - - machine = hashmap_get(m->machines, name); - if (!machine) - return sd_bus_error_setf(error, BUS_ERROR_NO_SUCH_MACHINE, "No machine '%s' known", name); - - return bus_machine_method_open_pty(message, machine, error); -} - -static int method_open_machine_login(sd_bus_message *message, void *userdata, sd_bus_error *error) { - Manager *m = userdata; - Machine *machine; - const char *name; - int r; - - assert(message); - assert(m); - - r = sd_bus_message_read(message, "s", &name); - if (r < 0) - return r; - - machine = hashmap_get(m->machines, name); - if (!machine) - return sd_bus_error_setf(error, BUS_ERROR_NO_SUCH_MACHINE, "No machine '%s' known", name); - - return bus_machine_method_open_login(message, machine, error); -} - -static int method_open_machine_shell(sd_bus_message *message, void *userdata, sd_bus_error *error) { - Manager *m = userdata; - Machine *machine; - const char *name; - - int r; - - assert(message); - assert(m); - - r = sd_bus_message_read(message, "s", &name); - if (r < 0) - return r; - - machine = hashmap_get(m->machines, name); - if (!machine) - return sd_bus_error_setf(error, BUS_ERROR_NO_SUCH_MACHINE, "No machine '%s' known", name); - - return bus_machine_method_open_shell(message, machine, error); -} - -static int method_bind_mount_machine(sd_bus_message *message, void *userdata, sd_bus_error *error) { - Manager *m = userdata; - Machine *machine; - const char *name; - int r; - - assert(message); - assert(m); - - r = sd_bus_message_read(message, "s", &name); - if (r < 0) - return r; - - machine = hashmap_get(m->machines, name); - if (!machine) - return sd_bus_error_setf(error, BUS_ERROR_NO_SUCH_MACHINE, "No machine '%s' known", name); - - return bus_machine_method_bind_mount(message, machine, error); -} - -static int method_copy_machine(sd_bus_message *message, void *userdata, sd_bus_error *error) { - Manager *m = userdata; - Machine *machine; - const char *name; - int r; - - assert(message); - assert(m); - - r = sd_bus_message_read(message, "s", &name); - if (r < 0) - return r; - - machine = hashmap_get(m->machines, name); - if (!machine) - return sd_bus_error_setf(error, BUS_ERROR_NO_SUCH_MACHINE, "No machine '%s' known", name); - - return bus_machine_method_copy(message, machine, error); -} - -static int method_open_machine_root_directory(sd_bus_message *message, void *userdata, sd_bus_error *error) { - Manager *m = userdata; - Machine *machine; - const char *name; - int r; - - assert(message); - assert(m); - - r = sd_bus_message_read(message, "s", &name); - if (r < 0) - return r; - - machine = hashmap_get(m->machines, name); - if (!machine) - return sd_bus_error_setf(error, BUS_ERROR_NO_SUCH_MACHINE, "No machine '%s' known", name); - - return bus_machine_method_open_root_directory(message, machine, error); -} - -static int method_remove_image(sd_bus_message *message, void *userdata, sd_bus_error *error) { - _cleanup_(image_unrefp) Image* i = NULL; - const char *name; - int r; - - assert(message); - - r = sd_bus_message_read(message, "s", &name); - if (r < 0) - return r; - - if (!image_name_is_valid(name)) - return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Image name '%s' is invalid.", name); - - r = image_find(name, &i); - if (r < 0) - return r; - if (r == 0) - return sd_bus_error_setf(error, BUS_ERROR_NO_SUCH_IMAGE, "No image '%s' known", name); - - i->userdata = userdata; - return bus_image_method_remove(message, i, error); -} - -static int method_rename_image(sd_bus_message *message, void *userdata, sd_bus_error *error) { - _cleanup_(image_unrefp) Image* i = NULL; - const char *old_name; - int r; - - assert(message); - - r = sd_bus_message_read(message, "s", &old_name); - if (r < 0) - return r; - - if (!image_name_is_valid(old_name)) - return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Image name '%s' is invalid.", old_name); - - r = image_find(old_name, &i); - if (r < 0) - return r; - if (r == 0) - return sd_bus_error_setf(error, BUS_ERROR_NO_SUCH_IMAGE, "No image '%s' known", old_name); - - i->userdata = userdata; - return bus_image_method_rename(message, i, error); -} - -static int method_clone_image(sd_bus_message *message, void *userdata, sd_bus_error *error) { - _cleanup_(image_unrefp) Image *i = NULL; - const char *old_name; - int r; - - assert(message); - - r = sd_bus_message_read(message, "s", &old_name); - if (r < 0) - return r; - - if (!image_name_is_valid(old_name)) - return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Image name '%s' is invalid.", old_name); - - r = image_find(old_name, &i); - if (r < 0) - return r; - if (r == 0) - return sd_bus_error_setf(error, BUS_ERROR_NO_SUCH_IMAGE, "No image '%s' known", old_name); - - i->userdata = userdata; - return bus_image_method_clone(message, i, error); -} - -static int method_mark_image_read_only(sd_bus_message *message, void *userdata, sd_bus_error *error) { - _cleanup_(image_unrefp) Image *i = NULL; - const char *name; - int r; - - assert(message); - - r = sd_bus_message_read(message, "s", &name); - if (r < 0) - return r; - - if (!image_name_is_valid(name)) - return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Image name '%s' is invalid.", name); - - r = image_find(name, &i); - if (r < 0) - return r; - if (r == 0) - return sd_bus_error_setf(error, BUS_ERROR_NO_SUCH_IMAGE, "No image '%s' known", name); - - i->userdata = userdata; - return bus_image_method_mark_read_only(message, i, error); -} - -static int clean_pool_done(Operation *operation, int ret, sd_bus_error *error) { - _cleanup_(sd_bus_message_unrefp) sd_bus_message *reply = NULL; - _cleanup_fclose_ FILE *f = NULL; - bool success; - size_t n; - int r; - - assert(operation); - assert(operation->extra_fd >= 0); - - if (lseek(operation->extra_fd, 0, SEEK_SET) == (off_t) -1) - return -errno; - - f = fdopen(operation->extra_fd, "re"); - if (!f) - return -errno; - - operation->extra_fd = -1; - - /* The resulting temporary file starts with a boolean value that indicates success or not. */ - errno = 0; - n = fread(&success, 1, sizeof(success), f); - if (n != sizeof(success)) - return ret < 0 ? ret : (errno != 0 ? -errno : -EIO); - - if (ret < 0) { - _cleanup_free_ char *name = NULL; - - /* The clean-up operation failed. In this case the resulting temporary file should contain a boolean - * set to false followed by the name of the failed image. Let's try to read this and use it for the - * error message. If we can't read it, don't mind, and return the naked error. */ - - if (success) /* The resulting temporary file could not be updated, ignore it. */ - return ret; - - r = read_nul_string(f, &name); - if (r < 0 || isempty(name)) /* Same here... */ - return ret; - - return sd_bus_error_set_errnof(error, ret, "Failed to remove image %s: %m", name); - } - - assert(success); - - r = sd_bus_message_new_method_return(operation->message, &reply); - if (r < 0) - return r; - - r = sd_bus_message_open_container(reply, 'a', "(st)"); - if (r < 0) - return r; - - /* On success the resulting temporary file will contain a list of image names that were removed followed by - * their size on disk. Let's read that and turn it into a bus message. */ - for (;;) { - _cleanup_free_ char *name = NULL; - uint64_t size; - - r = read_nul_string(f, &name); - if (r < 0) - return r; - if (isempty(name)) /* reached the end */ - break; - - errno = 0; - n = fread(&size, 1, sizeof(size), f); - if (n != sizeof(size)) - return errno != 0 ? -errno : -EIO; - - r = sd_bus_message_append(reply, "(st)", name, size); - 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_clean_pool(sd_bus_message *message, void *userdata, sd_bus_error *error) { - enum { - REMOVE_ALL, - REMOVE_HIDDEN, - } mode; - - _cleanup_close_pair_ int errno_pipe_fd[2] = { -1, -1 }; - _cleanup_close_ int result_fd = -1; - Manager *m = userdata; - Operation *operation; - const char *mm; - pid_t child; - int r; - - assert(message); - - if (m->n_operations >= OPERATIONS_MAX) - return sd_bus_error_setf(error, SD_BUS_ERROR_LIMITS_EXCEEDED, "Too many ongoing operations."); - - 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 */ - - if (pipe2(errno_pipe_fd, O_CLOEXEC|O_NONBLOCK) < 0) - return sd_bus_error_set_errnof(error, errno, "Failed to create pipe: %m"); - - /* Create a temporary file we can dump information about deleted images into. We use a temporary file for this - * instead of a pipe or so, since this might grow quit large in theory and we don't want to process this - * continuously */ - result_fd = open_tmpfile_unlinkable(NULL, O_RDWR|O_CLOEXEC); - if (result_fd < 0) - return -errno; - - /* This might be a slow operation, run it asynchronously in a background process */ - child = fork(); - if (child < 0) - return sd_bus_error_set_errnof(error, errno, "Failed to fork(): %m"); - - if (child == 0) { - _cleanup_(image_hashmap_freep) Hashmap *images = NULL; - bool success = true; - Image *image; - Iterator i; - ssize_t l; - - errno_pipe_fd[0] = safe_close(errno_pipe_fd[0]); - - images = hashmap_new(&string_hash_ops); - if (!images) { - r = -ENOMEM; - goto child_fail; - } - - r = image_discover(images); - if (r < 0) - goto child_fail; - - l = write(result_fd, &success, sizeof(success)); - if (l < 0) { - r = -errno; - goto child_fail; - } - - 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) { - /* If the operation failed, let's override everything we wrote, and instead write there at which image we failed. */ - success = false; - (void) ftruncate(result_fd, 0); - (void) lseek(result_fd, 0, SEEK_SET); - (void) write(result_fd, &success, sizeof(success)); - (void) write(result_fd, image->name, strlen(image->name)+1); - goto child_fail; - } - - l = write(result_fd, image->name, strlen(image->name)+1); - if (l < 0) { - r = -errno; - goto child_fail; - } - - l = write(result_fd, &image->usage_exclusive, sizeof(image->usage_exclusive)); - if (l < 0) { - r = -errno; - goto child_fail; - } - } - - result_fd = safe_close(result_fd); - _exit(EXIT_SUCCESS); - - child_fail: - (void) write(errno_pipe_fd[1], &r, sizeof(r)); - _exit(EXIT_FAILURE); - } - - errno_pipe_fd[1] = safe_close(errno_pipe_fd[1]); - - /* The clean-up might take a while, hence install a watch on the child and return */ - - r = operation_new(m, NULL, child, message, errno_pipe_fd[0], &operation); - if (r < 0) { - (void) sigkill_wait(child); - return r; - } - - operation->extra_fd = result_fd; - operation->done = clean_pool_done; - - result_fd = -1; - errno_pipe_fd[0] = -1; - - return 1; -} - -static int method_set_pool_limit(sd_bus_message *message, void *userdata, sd_bus_error *error) { - Manager *m = userdata; - uint64_t limit; - int r; - - assert(message); - - 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, - 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 */ - - /* Set up the machine directory if necessary */ - r = setup_machine_directory(limit, error); - if (r < 0) - return r; - - /* 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); - - r = btrfs_subvol_set_subtree_quota_limit("/var/lib/machines", 0, limit); - if (r == -ENOTTY) - return sd_bus_error_setf(error, SD_BUS_ERROR_NOT_SUPPORTED, "Quota is only supported on btrfs."); - if (r < 0) - return sd_bus_error_set_errnof(error, r, "Failed to adjust quota limit: %m"); - - return sd_bus_reply_method_return(message, NULL); -} - -static int method_set_image_limit(sd_bus_message *message, void *userdata, sd_bus_error *error) { - _cleanup_(image_unrefp) Image *i = NULL; - const char *name; - int r; - - assert(message); - - r = sd_bus_message_read(message, "s", &name); - if (r < 0) - return r; - - if (!image_name_is_valid(name)) - return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Image name '%s' is invalid.", name); - - r = image_find(name, &i); - if (r < 0) - return r; - if (r == 0) - return sd_bus_error_setf(error, BUS_ERROR_NO_SUCH_IMAGE, "No image '%s' known", name); - - i->userdata = userdata; - return bus_image_method_set_limit(message, i, error); -} - -static int method_map_from_machine_user(sd_bus_message *message, void *userdata, sd_bus_error *error) { - _cleanup_fclose_ FILE *f = NULL; - Manager *m = userdata; - const char *name, *p; - Machine *machine; - uint32_t uid; - int r; - - r = sd_bus_message_read(message, "su", &name, &uid); - if (r < 0) - return r; - - if (!uid_is_valid(uid)) - return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Invalid user ID " UID_FMT, uid); - - machine = hashmap_get(m->machines, name); - if (!machine) - return sd_bus_error_setf(error, BUS_ERROR_NO_SUCH_MACHINE, "No machine '%s' known", name); - - if (machine->class != MACHINE_CONTAINER) - return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Not supported for non-container machines."); - - p = procfs_file_alloca(machine->leader, "uid_map"); - f = fopen(p, "re"); - if (!f) - return -errno; - - for (;;) { - uid_t uid_base, uid_shift, uid_range, converted; - int k; - - errno = 0; - k = fscanf(f, UID_FMT " " UID_FMT " " UID_FMT, &uid_base, &uid_shift, &uid_range); - if (k < 0 && feof(f)) - break; - if (k != 3) { - if (ferror(f) && errno > 0) - return -errno; - - return -EIO; - } - - if (uid < uid_base || uid >= uid_base + uid_range) - continue; - - converted = uid - uid_base + uid_shift; - if (!uid_is_valid(converted)) - return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Invalid user ID " UID_FMT, uid); - - return sd_bus_reply_method_return(message, "u", (uint32_t) converted); - } - - return sd_bus_error_setf(error, BUS_ERROR_NO_SUCH_USER_MAPPING, "Machine '%s' has no matching user mappings.", name); -} - -static int method_map_to_machine_user(sd_bus_message *message, void *userdata, sd_bus_error *error) { - Manager *m = userdata; - Machine *machine; - uid_t uid; - Iterator i; - int r; - - r = sd_bus_message_read(message, "u", &uid); - if (r < 0) - return r; - if (!uid_is_valid(uid)) - return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Invalid user ID " UID_FMT, uid); - if (uid < 0x10000) - return sd_bus_error_setf(error, BUS_ERROR_NO_SUCH_USER_MAPPING, "User " UID_FMT " belongs to host UID range", uid); - - HASHMAP_FOREACH(machine, m->machines, i) { - _cleanup_fclose_ FILE *f = NULL; - char p[strlen("/proc//uid_map") + DECIMAL_STR_MAX(pid_t) + 1]; - - if (machine->class != MACHINE_CONTAINER) - continue; - - xsprintf(p, "/proc/" UID_FMT "/uid_map", machine->leader); - f = fopen(p, "re"); - if (!f) { - log_warning_errno(errno, "Failed top open %s, ignoring,", p); - continue; - } - - for (;;) { - _cleanup_free_ char *o = NULL; - uid_t uid_base, uid_shift, uid_range, converted; - int k; - - errno = 0; - k = fscanf(f, UID_FMT " " UID_FMT " " UID_FMT, &uid_base, &uid_shift, &uid_range); - if (k < 0 && feof(f)) - break; - if (k != 3) { - if (ferror(f) && errno > 0) - return -errno; - - return -EIO; - } - - if (uid < uid_shift || uid >= uid_shift + uid_range) - continue; - - converted = (uid - uid_shift + uid_base); - if (!uid_is_valid(converted)) - return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Invalid user ID " UID_FMT, uid); - - o = machine_bus_path(machine); - if (!o) - return -ENOMEM; - - return sd_bus_reply_method_return(message, "sou", machine->name, o, (uint32_t) converted); - } - } - - return sd_bus_error_setf(error, BUS_ERROR_NO_SUCH_USER_MAPPING, "No matching user mapping for " UID_FMT ".", uid); -} - -static int method_map_from_machine_group(sd_bus_message *message, void *groupdata, sd_bus_error *error) { - _cleanup_fclose_ FILE *f = NULL; - Manager *m = groupdata; - const char *name, *p; - Machine *machine; - uint32_t gid; - int r; - - r = sd_bus_message_read(message, "su", &name, &gid); - if (r < 0) - return r; - - if (!gid_is_valid(gid)) - return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Invalid group ID " GID_FMT, gid); - - machine = hashmap_get(m->machines, name); - if (!machine) - return sd_bus_error_setf(error, BUS_ERROR_NO_SUCH_MACHINE, "No machine '%s' known", name); - - if (machine->class != MACHINE_CONTAINER) - return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Not supported for non-container machines."); - - p = procfs_file_alloca(machine->leader, "gid_map"); - f = fopen(p, "re"); - if (!f) - return -errno; - - for (;;) { - gid_t gid_base, gid_shift, gid_range, converted; - int k; - - errno = 0; - k = fscanf(f, GID_FMT " " GID_FMT " " GID_FMT, &gid_base, &gid_shift, &gid_range); - if (k < 0 && feof(f)) - break; - if (k != 3) { - if (ferror(f) && errno > 0) - return -errno; - - return -EIO; - } - - if (gid < gid_base || gid >= gid_base + gid_range) - continue; - - converted = gid - gid_base + gid_shift; - if (!gid_is_valid(converted)) - return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Invalid group ID " GID_FMT, gid); - - return sd_bus_reply_method_return(message, "u", (uint32_t) converted); - } - - return sd_bus_error_setf(error, BUS_ERROR_NO_SUCH_GROUP_MAPPING, "Machine '%s' has no matching group mappings.", name); -} - -static int method_map_to_machine_group(sd_bus_message *message, void *groupdata, sd_bus_error *error) { - Manager *m = groupdata; - Machine *machine; - gid_t gid; - Iterator i; - int r; - - r = sd_bus_message_read(message, "u", &gid); - if (r < 0) - return r; - if (!gid_is_valid(gid)) - return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Invalid group ID " GID_FMT, gid); - if (gid < 0x10000) - return sd_bus_error_setf(error, BUS_ERROR_NO_SUCH_GROUP_MAPPING, "Group " GID_FMT " belongs to host GID range", gid); - - HASHMAP_FOREACH(machine, m->machines, i) { - _cleanup_fclose_ FILE *f = NULL; - char p[strlen("/proc//gid_map") + DECIMAL_STR_MAX(pid_t) + 1]; - - if (machine->class != MACHINE_CONTAINER) - continue; - - xsprintf(p, "/proc/" GID_FMT "/gid_map", machine->leader); - f = fopen(p, "re"); - if (!f) { - log_warning_errno(errno, "Failed top open %s, ignoring,", p); - continue; - } - - for (;;) { - _cleanup_free_ char *o = NULL; - gid_t gid_base, gid_shift, gid_range, converted; - int k; - - errno = 0; - k = fscanf(f, GID_FMT " " GID_FMT " " GID_FMT, &gid_base, &gid_shift, &gid_range); - if (k < 0 && feof(f)) - break; - if (k != 3) { - if (ferror(f) && errno > 0) - return -errno; - - return -EIO; - } - - if (gid < gid_shift || gid >= gid_shift + gid_range) - continue; - - converted = (gid - gid_shift + gid_base); - if (!gid_is_valid(converted)) - return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Invalid group ID " GID_FMT, gid); - - o = machine_bus_path(machine); - if (!o) - return -ENOMEM; - - return sd_bus_reply_method_return(message, "sou", machine->name, o, (uint32_t) converted); - } - } - - return sd_bus_error_setf(error, BUS_ERROR_NO_SUCH_GROUP_MAPPING, "No matching group mapping for " GID_FMT ".", gid); -} - -const sd_bus_vtable manager_vtable[] = { - SD_BUS_VTABLE_START(0), - SD_BUS_PROPERTY("PoolPath", "s", property_get_pool_path, 0, 0), - SD_BUS_PROPERTY("PoolUsage", "t", property_get_pool_usage, 0, 0), - SD_BUS_PROPERTY("PoolLimit", "t", property_get_pool_limit, 0, 0), - SD_BUS_METHOD("GetMachine", "s", "o", method_get_machine, SD_BUS_VTABLE_UNPRIVILEGED), - SD_BUS_METHOD("GetImage", "s", "o", method_get_image, SD_BUS_VTABLE_UNPRIVILEGED), - SD_BUS_METHOD("GetMachineByPID", "u", "o", method_get_machine_by_pid, SD_BUS_VTABLE_UNPRIVILEGED), - SD_BUS_METHOD("ListMachines", NULL, "a(ssso)", method_list_machines, SD_BUS_VTABLE_UNPRIVILEGED), - SD_BUS_METHOD("ListImages", NULL, "a(ssbttto)", method_list_images, SD_BUS_VTABLE_UNPRIVILEGED), - SD_BUS_METHOD("CreateMachine", "sayssusa(sv)", "o", method_create_machine, 0), - SD_BUS_METHOD("CreateMachineWithNetwork", "sayssusaia(sv)", "o", method_create_machine_with_network, 0), - SD_BUS_METHOD("RegisterMachine", "sayssus", "o", method_register_machine, 0), - SD_BUS_METHOD("RegisterMachineWithNetwork", "sayssusai", "o", method_register_machine_with_network, 0), - SD_BUS_METHOD("TerminateMachine", "s", NULL, method_terminate_machine, SD_BUS_VTABLE_UNPRIVILEGED), - SD_BUS_METHOD("KillMachine", "ssi", NULL, method_kill_machine, SD_BUS_VTABLE_UNPRIVILEGED), - SD_BUS_METHOD("GetMachineAddresses", "s", "a(iay)", method_get_machine_addresses, SD_BUS_VTABLE_UNPRIVILEGED), - SD_BUS_METHOD("GetMachineOSRelease", "s", "a{ss}", method_get_machine_os_release, SD_BUS_VTABLE_UNPRIVILEGED), - SD_BUS_METHOD("OpenMachinePTY", "s", "hs", method_open_machine_pty, 0), - SD_BUS_METHOD("OpenMachineLogin", "s", "hs", method_open_machine_login, SD_BUS_VTABLE_UNPRIVILEGED), - SD_BUS_METHOD("OpenMachineShell", "sssasas", "hs", method_open_machine_shell, SD_BUS_VTABLE_UNPRIVILEGED), - SD_BUS_METHOD("BindMountMachine", "sssbb", NULL, method_bind_mount_machine, SD_BUS_VTABLE_UNPRIVILEGED), - SD_BUS_METHOD("CopyFromMachine", "sss", NULL, method_copy_machine, SD_BUS_VTABLE_UNPRIVILEGED), - SD_BUS_METHOD("CopyToMachine", "sss", NULL, method_copy_machine, SD_BUS_VTABLE_UNPRIVILEGED), - SD_BUS_METHOD("OpenMachineRootDirectory", "s", "h", method_open_machine_root_directory, SD_BUS_VTABLE_UNPRIVILEGED), - SD_BUS_METHOD("RemoveImage", "s", NULL, method_remove_image, SD_BUS_VTABLE_UNPRIVILEGED), - SD_BUS_METHOD("RenameImage", "ss", NULL, method_rename_image, SD_BUS_VTABLE_UNPRIVILEGED), - SD_BUS_METHOD("CloneImage", "ssb", NULL, method_clone_image, SD_BUS_VTABLE_UNPRIVILEGED), - 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), - SD_BUS_METHOD("MapToMachineGroup", "u", "sou", method_map_to_machine_group, SD_BUS_VTABLE_UNPRIVILEGED), - SD_BUS_SIGNAL("MachineNew", "so", 0), - SD_BUS_SIGNAL("MachineRemoved", "so", 0), - SD_BUS_VTABLE_END -}; - -int match_job_removed(sd_bus_message *message, void *userdata, sd_bus_error *error) { - const char *path, *result, *unit; - Manager *m = userdata; - Machine *machine; - uint32_t id; - int r; - - assert(message); - assert(m); - - r = sd_bus_message_read(message, "uoss", &id, &path, &unit, &result); - if (r < 0) { - bus_log_parse_error(r); - return 0; - } - - machine = hashmap_get(m->machine_units, unit); - if (!machine) - return 0; - - if (streq_ptr(path, machine->scope_job)) { - machine->scope_job = mfree(machine->scope_job); - - if (machine->started) { - if (streq(result, "done")) - machine_send_create_reply(machine, NULL); - else { - _cleanup_(sd_bus_error_free) sd_bus_error e = SD_BUS_ERROR_NULL; - - sd_bus_error_setf(&e, BUS_ERROR_JOB_FAILED, "Start job for unit %s failed with '%s'", unit, result); - - machine_send_create_reply(machine, &e); - } - } - - machine_save(machine); - } - - machine_add_to_gc_queue(machine); - return 0; -} - -int match_properties_changed(sd_bus_message *message, void *userdata, sd_bus_error *error) { - _cleanup_free_ char *unit = NULL; - const char *path; - Manager *m = userdata; - Machine *machine; - int r; - - assert(message); - assert(m); - - path = sd_bus_message_get_path(message); - if (!path) - return 0; - - r = unit_name_from_dbus_path(path, &unit); - if (r == -EINVAL) /* not for a unit */ - return 0; - if (r < 0) { - log_oom(); - return 0; - } - - machine = hashmap_get(m->machine_units, unit); - if (!machine) - return 0; - - machine_add_to_gc_queue(machine); - return 0; -} - -int match_unit_removed(sd_bus_message *message, void *userdata, sd_bus_error *error) { - const char *path, *unit; - Manager *m = userdata; - Machine *machine; - int r; - - assert(message); - assert(m); - - r = sd_bus_message_read(message, "so", &unit, &path); - if (r < 0) { - bus_log_parse_error(r); - return 0; - } - - machine = hashmap_get(m->machine_units, unit); - if (!machine) - return 0; - - machine_add_to_gc_queue(machine); - return 0; -} - -int match_reloading(sd_bus_message *message, void *userdata, sd_bus_error *error) { - Manager *m = userdata; - Machine *machine; - Iterator i; - int b, r; - - assert(message); - assert(m); - - r = sd_bus_message_read(message, "b", &b); - if (r < 0) { - bus_log_parse_error(r); - return 0; - } - if (b) - return 0; - - /* systemd finished reloading, let's recheck all our machines */ - log_debug("System manager has been reloaded, rechecking machines..."); - - HASHMAP_FOREACH(machine, m->machines, i) - machine_add_to_gc_queue(machine); - - return 0; -} - -int manager_start_scope( - Manager *manager, - const char *scope, - pid_t pid, - const char *slice, - const char *description, - sd_bus_message *more_properties, - sd_bus_error *error, - char **job) { - - _cleanup_(sd_bus_message_unrefp) sd_bus_message *m = NULL, *reply = NULL; - int r; - - assert(manager); - assert(scope); - assert(pid > 1); - - r = sd_bus_message_new_method_call( - manager->bus, - &m, - "org.freedesktop.systemd1", - "/org/freedesktop/systemd1", - "org.freedesktop.systemd1.Manager", - "StartTransientUnit"); - if (r < 0) - return r; - - r = sd_bus_message_append(m, "ss", strempty(scope), "fail"); - if (r < 0) - return r; - - r = sd_bus_message_open_container(m, 'a', "(sv)"); - if (r < 0) - return r; - - if (!isempty(slice)) { - r = sd_bus_message_append(m, "(sv)", "Slice", "s", slice); - if (r < 0) - return r; - } - - if (!isempty(description)) { - r = sd_bus_message_append(m, "(sv)", "Description", "s", description); - if (r < 0) - return r; - } - - r = sd_bus_message_append(m, "(sv)", "PIDs", "au", 1, pid); - if (r < 0) - return r; - - r = sd_bus_message_append(m, "(sv)", "Delegate", "b", 1); - if (r < 0) - return r; - - r = sd_bus_message_append(m, "(sv)", "TasksMax", "t", UINT64_C(16384)); - if (r < 0) - return bus_log_create_error(r); - - if (more_properties) { - r = sd_bus_message_copy(m, more_properties, true); - if (r < 0) - return r; - } - - r = sd_bus_message_close_container(m); - if (r < 0) - return r; - - r = sd_bus_message_append(m, "a(sa(sv))", 0); - if (r < 0) - return r; - - r = sd_bus_call(manager->bus, m, 0, error, &reply); - if (r < 0) - return r; - - if (job) { - const char *j; - char *copy; - - r = sd_bus_message_read(reply, "o", &j); - if (r < 0) - return r; - - copy = strdup(j); - if (!copy) - return -ENOMEM; - - *job = copy; - } - - return 1; -} - -int manager_stop_unit(Manager *manager, const char *unit, sd_bus_error *error, char **job) { - _cleanup_(sd_bus_message_unrefp) sd_bus_message *reply = NULL; - int r; - - assert(manager); - assert(unit); - - r = sd_bus_call_method( - manager->bus, - "org.freedesktop.systemd1", - "/org/freedesktop/systemd1", - "org.freedesktop.systemd1.Manager", - "StopUnit", - error, - &reply, - "ss", unit, "fail"); - if (r < 0) { - if (sd_bus_error_has_name(error, BUS_ERROR_NO_SUCH_UNIT) || - sd_bus_error_has_name(error, BUS_ERROR_LOAD_FAILED)) { - - if (job) - *job = NULL; - - sd_bus_error_free(error); - return 0; - } - - return r; - } - - if (job) { - const char *j; - char *copy; - - r = sd_bus_message_read(reply, "o", &j); - if (r < 0) - return r; - - copy = strdup(j); - if (!copy) - return -ENOMEM; - - *job = copy; - } - - return 1; -} - -int manager_kill_unit(Manager *manager, const char *unit, int signo, sd_bus_error *error) { - assert(manager); - assert(unit); - - return sd_bus_call_method( - manager->bus, - "org.freedesktop.systemd1", - "/org/freedesktop/systemd1", - "org.freedesktop.systemd1.Manager", - "KillUnit", - error, - NULL, - "ssi", unit, "all", signo); -} - -int manager_unit_is_active(Manager *manager, const char *unit) { - _cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL; - _cleanup_(sd_bus_message_unrefp) sd_bus_message *reply = NULL; - _cleanup_free_ char *path = NULL; - const char *state; - int r; - - assert(manager); - assert(unit); - - path = unit_dbus_path_from_name(unit); - if (!path) - return -ENOMEM; - - r = sd_bus_get_property( - manager->bus, - "org.freedesktop.systemd1", - path, - "org.freedesktop.systemd1.Unit", - "ActiveState", - &error, - &reply, - "s"); - if (r < 0) { - if (sd_bus_error_has_name(&error, SD_BUS_ERROR_NO_REPLY) || - sd_bus_error_has_name(&error, SD_BUS_ERROR_DISCONNECTED)) - return true; - - if (sd_bus_error_has_name(&error, BUS_ERROR_NO_SUCH_UNIT) || - sd_bus_error_has_name(&error, BUS_ERROR_LOAD_FAILED)) - return false; - - return r; - } - - r = sd_bus_message_read(reply, "s", &state); - if (r < 0) - return -EINVAL; - - return !STR_IN_SET(state, "inactive", "failed"); -} - -int manager_job_is_active(Manager *manager, const char *path) { - _cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL; - _cleanup_(sd_bus_message_unrefp) sd_bus_message *reply = NULL; - int r; - - assert(manager); - assert(path); - - r = sd_bus_get_property( - manager->bus, - "org.freedesktop.systemd1", - path, - "org.freedesktop.systemd1.Job", - "State", - &error, - &reply, - "s"); - if (r < 0) { - if (sd_bus_error_has_name(&error, SD_BUS_ERROR_NO_REPLY) || - sd_bus_error_has_name(&error, SD_BUS_ERROR_DISCONNECTED)) - return true; - - if (sd_bus_error_has_name(&error, SD_BUS_ERROR_UNKNOWN_OBJECT)) - return false; - - return r; - } - - /* We don't actually care about the state really. The fact - * that we could read the job state is enough for us */ - - return true; -} - -int manager_get_machine_by_pid(Manager *m, pid_t pid, Machine **machine) { - Machine *mm; - int r; - - assert(m); - assert(pid >= 1); - assert(machine); - - mm = hashmap_get(m->machine_leaders, PID_TO_PTR(pid)); - if (!mm) { - _cleanup_free_ char *unit = NULL; - - r = cg_pid_get_unit(pid, &unit); - if (r >= 0) - mm = hashmap_get(m->machine_units, unit); - } - if (!mm) - return 0; - - *machine = mm; - return 1; -} - -int manager_add_machine(Manager *m, const char *name, Machine **_machine) { - Machine *machine; - - assert(m); - assert(name); - - machine = hashmap_get(m->machines, name); - if (!machine) { - machine = machine_new(m, _MACHINE_CLASS_INVALID, name); - if (!machine) - return -ENOMEM; - } - - if (_machine) - *_machine = machine; - - return 0; -} |