1529 lines
50 KiB
C
1529 lines
50 KiB
C
/*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/
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/***
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This file is part of systemd.
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Copyright 2011 Lennart Poettering
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systemd is free software; you can redistribute it and/or modify it
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under the terms of the GNU Lesser General Public License as published by
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the Free Software Foundation; either version 2.1 of the License, or
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(at your option) any later version.
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systemd is distributed in the hope that it will be useful, but
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WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public License
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along with systemd; If not, see <http://www.gnu.org/licenses/>.
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***/
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#include <errno.h>
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#include <string.h>
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#include <unistd.h>
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#include "sd-id128.h"
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#include "strv.h"
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#include "path-util.h"
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#include "unit-name.h"
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#include "bus-util.h"
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#include "bus-common-errors.h"
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#include "cgroup-util.h"
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#include "btrfs-util.h"
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#include "formats-util.h"
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#include "process-util.h"
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#include "machine-image.h"
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#include "machine-pool.h"
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#include "image-dbus.h"
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#include "machined.h"
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#include "machine-dbus.h"
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static int property_get_pool_path(
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sd_bus *bus,
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const char *path,
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const char *interface,
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const char *property,
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sd_bus_message *reply,
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void *userdata,
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sd_bus_error *error) {
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assert(bus);
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assert(reply);
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return sd_bus_message_append(reply, "s", "/var/lib/machines");
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}
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static int property_get_pool_usage(
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sd_bus *bus,
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const char *path,
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const char *interface,
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const char *property,
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sd_bus_message *reply,
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void *userdata,
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sd_bus_error *error) {
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_cleanup_close_ int fd = -1;
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uint64_t usage = (uint64_t) -1;
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struct stat st;
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assert(bus);
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assert(reply);
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/* We try to read the quota info from /var/lib/machines, as
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* well as the usage of the loopback file
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* /var/lib/machines.raw, and pick the larger value. */
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fd = open("/var/lib/machines", O_RDONLY|O_CLOEXEC|O_DIRECTORY);
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if (fd >= 0) {
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BtrfsQuotaInfo q;
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if (btrfs_subvol_get_quota_fd(fd, &q) >= 0)
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usage = q.referenced;
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}
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if (stat("/var/lib/machines.raw", &st) >= 0) {
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if (usage == (uint64_t) -1 || st.st_blocks * 512ULL > usage)
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usage = st.st_blocks * 512ULL;
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}
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return sd_bus_message_append(reply, "t", usage);
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}
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static int property_get_pool_limit(
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sd_bus *bus,
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const char *path,
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const char *interface,
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const char *property,
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sd_bus_message *reply,
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void *userdata,
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sd_bus_error *error) {
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_cleanup_close_ int fd = -1;
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uint64_t size = (uint64_t) -1;
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struct stat st;
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assert(bus);
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assert(reply);
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/* We try to read the quota limit from /var/lib/machines, as
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* well as the size of the loopback file
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* /var/lib/machines.raw, and pick the smaller value. */
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fd = open("/var/lib/machines", O_RDONLY|O_CLOEXEC|O_DIRECTORY);
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if (fd >= 0) {
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BtrfsQuotaInfo q;
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if (btrfs_subvol_get_quota_fd(fd, &q) >= 0)
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size = q.referenced_max;
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}
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if (stat("/var/lib/machines.raw", &st) >= 0) {
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if (size == (uint64_t) -1 || (uint64_t) st.st_size < size)
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size = st.st_size;
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}
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return sd_bus_message_append(reply, "t", size);
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}
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static int method_get_machine(sd_bus_message *message, void *userdata, sd_bus_error *error) {
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_cleanup_free_ char *p = NULL;
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Manager *m = userdata;
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Machine *machine;
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const char *name;
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int r;
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assert(message);
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assert(m);
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r = sd_bus_message_read(message, "s", &name);
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if (r < 0)
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return r;
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machine = hashmap_get(m->machines, name);
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if (!machine)
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return sd_bus_error_setf(error, BUS_ERROR_NO_SUCH_MACHINE, "No machine '%s' known", name);
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p = machine_bus_path(machine);
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if (!p)
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return -ENOMEM;
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return sd_bus_reply_method_return(message, "o", p);
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}
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static int method_get_image(sd_bus_message *message, void *userdata, sd_bus_error *error) {
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_cleanup_free_ char *p = NULL;
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Manager *m = userdata;
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const char *name;
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int r;
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assert(message);
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assert(m);
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r = sd_bus_message_read(message, "s", &name);
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if (r < 0)
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return r;
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r = image_find(name, NULL);
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if (r == 0)
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return sd_bus_error_setf(error, BUS_ERROR_NO_SUCH_IMAGE, "No image '%s' known", name);
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if (r < 0)
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return r;
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p = image_bus_path(name);
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if (!p)
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return -ENOMEM;
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return sd_bus_reply_method_return(message, "o", p);
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}
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static int method_get_machine_by_pid(sd_bus_message *message, void *userdata, sd_bus_error *error) {
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_cleanup_free_ char *p = NULL;
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Manager *m = userdata;
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Machine *machine = NULL;
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pid_t pid;
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int r;
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assert(message);
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assert(m);
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assert_cc(sizeof(pid_t) == sizeof(uint32_t));
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r = sd_bus_message_read(message, "u", &pid);
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if (r < 0)
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return r;
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if (pid == 0) {
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_cleanup_bus_creds_unref_ sd_bus_creds *creds = NULL;
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r = sd_bus_query_sender_creds(message, SD_BUS_CREDS_PID, &creds);
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if (r < 0)
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return r;
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r = sd_bus_creds_get_pid(creds, &pid);
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if (r < 0)
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return r;
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}
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r = manager_get_machine_by_pid(m, pid, &machine);
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if (r < 0)
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return r;
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if (!machine)
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return sd_bus_error_setf(error, BUS_ERROR_NO_MACHINE_FOR_PID, "PID "PID_FMT" does not belong to any known machine", pid);
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p = machine_bus_path(machine);
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if (!p)
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return -ENOMEM;
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return sd_bus_reply_method_return(message, "o", p);
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}
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static int method_list_machines(sd_bus_message *message, void *userdata, sd_bus_error *error) {
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_cleanup_bus_message_unref_ sd_bus_message *reply = NULL;
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Manager *m = userdata;
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Machine *machine;
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Iterator i;
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int r;
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assert(message);
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assert(m);
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r = sd_bus_message_new_method_return(message, &reply);
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if (r < 0)
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return sd_bus_error_set_errno(error, r);
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r = sd_bus_message_open_container(reply, 'a', "(ssso)");
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if (r < 0)
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return sd_bus_error_set_errno(error, r);
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HASHMAP_FOREACH(machine, m->machines, i) {
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_cleanup_free_ char *p = NULL;
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p = machine_bus_path(machine);
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if (!p)
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return -ENOMEM;
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r = sd_bus_message_append(reply, "(ssso)",
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machine->name,
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strempty(machine_class_to_string(machine->class)),
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machine->service,
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p);
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if (r < 0)
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return sd_bus_error_set_errno(error, r);
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}
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r = sd_bus_message_close_container(reply);
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if (r < 0)
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return sd_bus_error_set_errno(error, r);
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return sd_bus_send(NULL, reply, NULL);
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}
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static int method_create_or_register_machine(Manager *manager, sd_bus_message *message, bool read_network, Machine **_m, sd_bus_error *error) {
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const char *name, *service, *class, *root_directory;
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const int32_t *netif = NULL;
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MachineClass c;
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uint32_t leader;
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sd_id128_t id;
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const void *v;
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Machine *m;
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size_t n, n_netif = 0;
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int r;
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assert(manager);
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assert(message);
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assert(_m);
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r = sd_bus_message_read(message, "s", &name);
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if (r < 0)
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return r;
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if (!machine_name_is_valid(name))
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return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Invalid machine name");
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r = sd_bus_message_read_array(message, 'y', &v, &n);
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if (r < 0)
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return r;
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if (n == 0)
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id = SD_ID128_NULL;
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else if (n == 16)
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memcpy(&id, v, n);
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else
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return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Invalid machine ID parameter");
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r = sd_bus_message_read(message, "ssus", &service, &class, &leader, &root_directory);
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if (r < 0)
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return r;
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if (read_network) {
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size_t i;
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r = sd_bus_message_read_array(message, 'i', (const void**) &netif, &n_netif);
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if (r < 0)
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return r;
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n_netif /= sizeof(int32_t);
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for (i = 0; i < n_netif; i++) {
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if (netif[i] <= 0)
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return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Invalid network interface index %i", netif[i]);
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}
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}
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if (isempty(class))
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c = _MACHINE_CLASS_INVALID;
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else {
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c = machine_class_from_string(class);
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if (c < 0)
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return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Invalid machine class parameter");
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}
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if (leader == 1)
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return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Invalid leader PID");
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if (!isempty(root_directory) && !path_is_absolute(root_directory))
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return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Root directory must be empty or an absolute path");
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if (leader == 0) {
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_cleanup_bus_creds_unref_ sd_bus_creds *creds = NULL;
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r = sd_bus_query_sender_creds(message, SD_BUS_CREDS_PID, &creds);
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if (r < 0)
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return r;
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assert_cc(sizeof(uint32_t) == sizeof(pid_t));
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r = sd_bus_creds_get_pid(creds, (pid_t*) &leader);
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if (r < 0)
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return r;
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}
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if (hashmap_get(manager->machines, name))
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return sd_bus_error_setf(error, BUS_ERROR_MACHINE_EXISTS, "Machine '%s' already exists", name);
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r = manager_add_machine(manager, name, &m);
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if (r < 0)
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return r;
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m->leader = leader;
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m->class = c;
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m->id = id;
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if (!isempty(service)) {
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m->service = strdup(service);
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if (!m->service) {
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r = -ENOMEM;
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goto fail;
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}
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}
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if (!isempty(root_directory)) {
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m->root_directory = strdup(root_directory);
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if (!m->root_directory) {
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r = -ENOMEM;
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goto fail;
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}
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}
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if (n_netif > 0) {
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assert_cc(sizeof(int32_t) == sizeof(int));
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m->netif = memdup(netif, sizeof(int32_t) * n_netif);
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if (!m->netif) {
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r = -ENOMEM;
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goto fail;
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}
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m->n_netif = n_netif;
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}
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*_m = m;
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return 1;
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fail:
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machine_add_to_gc_queue(m);
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return r;
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}
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static int method_create_machine_internal(sd_bus_message *message, bool read_network, void *userdata, sd_bus_error *error) {
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Manager *manager = userdata;
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Machine *m = NULL;
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int r;
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assert(message);
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assert(manager);
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r = method_create_or_register_machine(manager, message, read_network, &m, error);
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if (r < 0)
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return r;
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r = sd_bus_message_enter_container(message, 'a', "(sv)");
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if (r < 0)
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goto fail;
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r = machine_start(m, message, error);
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if (r < 0)
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goto fail;
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m->create_message = sd_bus_message_ref(message);
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return 1;
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fail:
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machine_add_to_gc_queue(m);
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return r;
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}
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static int method_create_machine_with_network(sd_bus_message *message, void *userdata, sd_bus_error *error) {
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return method_create_machine_internal(message, true, userdata, error);
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}
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static int method_create_machine(sd_bus_message *message, void *userdata, sd_bus_error *error) {
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return method_create_machine_internal(message, false, userdata, error);
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}
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static int method_register_machine_internal(sd_bus_message *message, bool read_network, void *userdata, sd_bus_error *error) {
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Manager *manager = userdata;
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_cleanup_free_ char *p = NULL;
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Machine *m = NULL;
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int r;
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assert(message);
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assert(manager);
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r = method_create_or_register_machine(manager, message, read_network, &m, error);
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if (r < 0)
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return r;
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r = cg_pid_get_unit(m->leader, &m->unit);
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if (r < 0) {
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r = sd_bus_error_set_errnof(error, r, "Failed to determine unit of process "PID_FMT" : %s", m->leader, strerror(-r));
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goto fail;
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}
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r = machine_start(m, NULL, error);
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if (r < 0)
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goto fail;
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p = machine_bus_path(m);
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if (!p) {
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r = -ENOMEM;
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goto fail;
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}
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return sd_bus_reply_method_return(message, "o", p);
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fail:
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machine_add_to_gc_queue(m);
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return r;
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}
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static int method_register_machine_with_network(sd_bus_message *message, void *userdata, sd_bus_error *error) {
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return method_register_machine_internal(message, true, userdata, error);
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}
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static int method_register_machine(sd_bus_message *message, void *userdata, sd_bus_error *error) {
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return method_register_machine_internal(message, false, userdata, error);
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}
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static int method_terminate_machine(sd_bus_message *message, void *userdata, sd_bus_error *error) {
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Manager *m = userdata;
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Machine *machine;
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const char *name;
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int r;
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assert(message);
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assert(m);
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r = sd_bus_message_read(message, "s", &name);
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if (r < 0)
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return sd_bus_error_set_errno(error, r);
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|
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machine = hashmap_get(m->machines, name);
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if (!machine)
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return sd_bus_error_setf(error, BUS_ERROR_NO_SUCH_MACHINE, "No machine '%s' known", name);
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return bus_machine_method_terminate(message, machine, error);
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}
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static int method_kill_machine(sd_bus_message *message, void *userdata, sd_bus_error *error) {
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Manager *m = userdata;
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Machine *machine;
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const char *name;
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int r;
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assert(message);
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assert(m);
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r = sd_bus_message_read(message, "s", &name);
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if (r < 0)
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return sd_bus_error_set_errno(error, r);
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machine = hashmap_get(m->machines, name);
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if (!machine)
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return sd_bus_error_setf(error, BUS_ERROR_NO_SUCH_MACHINE, "No machine '%s' known", name);
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return bus_machine_method_kill(message, machine, error);
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}
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|
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static int method_get_machine_addresses(sd_bus_message *message, void *userdata, sd_bus_error *error) {
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Manager *m = userdata;
|
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Machine *machine;
|
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const char *name;
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int r;
|
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|
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assert(message);
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assert(m);
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|
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r = sd_bus_message_read(message, "s", &name);
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if (r < 0)
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return sd_bus_error_set_errno(error, r);
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|
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machine = hashmap_get(m->machines, name);
|
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if (!machine)
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return sd_bus_error_setf(error, BUS_ERROR_NO_SUCH_MACHINE, "No machine '%s' known", name);
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|
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return bus_machine_method_get_addresses(message, machine, error);
|
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}
|
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|
|
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_bus_message_unref_ 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_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_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 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;
|
|
|
|
r = bus_verify_polkit_async(
|
|
message,
|
|
CAP_SYS_ADMIN,
|
|
"org.freedesktop.machine1.manage-machines",
|
|
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;
|
|
|
|
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");
|
|
|
|
r = btrfs_quota_limit("/var/lib/machines", 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_INVALID(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);
|
|
|
|
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_INVALID(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_INVALID(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];
|
|
|
|
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_INVALID(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_INVALID(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);
|
|
|
|
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_INVALID(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_INVALID(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];
|
|
|
|
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_INVALID(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("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("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("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 r;
|
|
}
|
|
|
|
machine = hashmap_get(m->machine_units, unit);
|
|
if (!machine)
|
|
return 0;
|
|
|
|
if (streq_ptr(path, machine->scope_job)) {
|
|
free(machine->scope_job);
|
|
machine->scope_job = NULL;
|
|
|
|
if (machine->started) {
|
|
if (streq(result, "done"))
|
|
machine_send_create_reply(machine, NULL);
|
|
else {
|
|
_cleanup_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);
|
|
}
|
|
} else
|
|
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, *interface;
|
|
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;
|
|
|
|
r = sd_bus_message_read(message, "s", &interface);
|
|
if (r < 0) {
|
|
bus_log_parse_error(r);
|
|
return 0;
|
|
}
|
|
|
|
if (streq(interface, "org.freedesktop.systemd1.Unit")) {
|
|
struct properties {
|
|
char *active_state;
|
|
char *sub_state;
|
|
} properties = {};
|
|
|
|
const struct bus_properties_map map[] = {
|
|
{ "ActiveState", "s", NULL, offsetof(struct properties, active_state) },
|
|
{ "SubState", "s", NULL, offsetof(struct properties, sub_state) },
|
|
{}
|
|
};
|
|
|
|
r = bus_message_map_properties_changed(message, map, &properties);
|
|
if (r < 0)
|
|
bus_log_parse_error(r);
|
|
else if (streq_ptr(properties.active_state, "inactive") ||
|
|
streq_ptr(properties.active_state, "failed") ||
|
|
streq_ptr(properties.sub_state, "auto-restart"))
|
|
machine_release_unit(machine);
|
|
|
|
free(properties.active_state);
|
|
free(properties.sub_state);
|
|
}
|
|
|
|
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_release_unit(machine);
|
|
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 r;
|
|
}
|
|
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_bus_message_unref_ 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;
|
|
|
|
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_bus_message_unref_ 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_bus_error_free_ sd_bus_error error = SD_BUS_ERROR_NULL;
|
|
_cleanup_bus_message_unref_ 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_bus_error_free_ sd_bus_error error = SD_BUS_ERROR_NULL;
|
|
_cleanup_bus_message_unref_ 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) {
|
|
_cleanup_free_ char *unit = NULL;
|
|
Machine *mm;
|
|
int r;
|
|
|
|
assert(m);
|
|
assert(pid >= 1);
|
|
assert(machine);
|
|
|
|
r = cg_pid_get_unit(pid, &unit);
|
|
if (r < 0)
|
|
mm = hashmap_get(m->machine_leaders, UINT_TO_PTR(pid));
|
|
else
|
|
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, name);
|
|
if (!machine)
|
|
return -ENOMEM;
|
|
}
|
|
|
|
if (_machine)
|
|
*_machine = machine;
|
|
|
|
return 0;
|
|
}
|