514368adfb
We really should generate exactly one log message for each error, hence let's do that in this one case too.
1638 lines
52 KiB
C
1638 lines
52 KiB
C
/***
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This file is part of systemd.
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Copyright 2016 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 <getopt.h>
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#include "libudev.h"
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#include "sd-bus.h"
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#include "bus-error.h"
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#include "bus-unit-util.h"
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#include "bus-util.h"
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#include "dirent-util.h"
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#include "escape.h"
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#include "fd-util.h"
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#include "fileio.h"
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#include "fstab-util.h"
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#include "pager.h"
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#include "parse-util.h"
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#include "path-util.h"
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#include "spawn-polkit-agent.h"
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#include "stat-util.h"
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#include "strv.h"
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#include "udev-util.h"
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#include "unit-name.h"
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#include "terminal-util.h"
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enum {
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ACTION_DEFAULT,
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ACTION_MOUNT,
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ACTION_AUTOMOUNT,
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ACTION_UMOUNT,
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ACTION_LIST,
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} arg_action = ACTION_DEFAULT;
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static bool arg_no_block = false;
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static bool arg_no_pager = false;
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static bool arg_ask_password = true;
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static bool arg_quiet = false;
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static BusTransport arg_transport = BUS_TRANSPORT_LOCAL;
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static bool arg_user = false;
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static const char *arg_host = NULL;
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static bool arg_discover = false;
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static char *arg_mount_what = NULL;
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static char *arg_mount_where = NULL;
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static char *arg_mount_type = NULL;
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static char *arg_mount_options = NULL;
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static char *arg_description = NULL;
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static char **arg_property = NULL;
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static usec_t arg_timeout_idle = USEC_INFINITY;
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static bool arg_timeout_idle_set = false;
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static char **arg_automount_property = NULL;
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static int arg_bind_device = -1;
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static bool arg_fsck = true;
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static void polkit_agent_open_if_enabled(void) {
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/* Open the polkit agent as a child process if necessary */
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if (!arg_ask_password)
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return;
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if (arg_transport != BUS_TRANSPORT_LOCAL)
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return;
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polkit_agent_open();
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}
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static void help(void) {
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printf("systemd-mount [OPTIONS...] WHAT [WHERE]\n"
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"systemd-mount [OPTIONS...] --list\n"
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"%s [OPTIONS...] %sWHAT|WHERE...\n\n"
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"Establish a mount or auto-mount point transiently.\n\n"
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" -h --help Show this help\n"
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" --version Show package version\n"
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" --no-block Do not wait until operation finished\n"
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" --no-pager Do not pipe output into a pager\n"
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" --no-ask-password Do not prompt for password\n"
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" -q --quiet Suppress information messages during runtime\n"
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" --user Run as user unit\n"
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" -H --host=[USER@]HOST Operate on remote host\n"
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" -M --machine=CONTAINER Operate on local container\n"
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" --discover Discover mount device metadata\n"
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" -t --type=TYPE File system type\n"
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" -o --options=OPTIONS Mount options\n"
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" --fsck=no Don't run file system check before mount\n"
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" --description=TEXT Description for unit\n"
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" -p --property=NAME=VALUE Set mount unit property\n"
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" -A --automount=BOOL Create an auto-mount point\n"
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" --timeout-idle-sec=SEC Specify automount idle timeout\n"
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" --automount-property=NAME=VALUE\n"
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" Set automount unit property\n"
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" --bind-device Bind automount unit to device\n"
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" --list List mountable block devices\n"
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" -u --umount Unmount mount points\n",
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program_invocation_short_name,
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streq(program_invocation_short_name, "systemd-umount") ? "" : "--umount ");
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}
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static int parse_argv(int argc, char *argv[]) {
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enum {
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ARG_VERSION = 0x100,
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ARG_NO_BLOCK,
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ARG_NO_PAGER,
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ARG_NO_ASK_PASSWORD,
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ARG_USER,
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ARG_SYSTEM,
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ARG_DISCOVER,
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ARG_MOUNT_TYPE,
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ARG_MOUNT_OPTIONS,
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ARG_FSCK,
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ARG_DESCRIPTION,
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ARG_TIMEOUT_IDLE,
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ARG_AUTOMOUNT,
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ARG_AUTOMOUNT_PROPERTY,
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ARG_BIND_DEVICE,
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ARG_LIST,
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};
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static const struct option options[] = {
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{ "help", no_argument, NULL, 'h' },
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{ "version", no_argument, NULL, ARG_VERSION },
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{ "no-block", no_argument, NULL, ARG_NO_BLOCK },
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{ "no-pager", no_argument, NULL, ARG_NO_PAGER },
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{ "no-ask-password", no_argument, NULL, ARG_NO_ASK_PASSWORD },
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{ "quiet", no_argument, NULL, 'q' },
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{ "user", no_argument, NULL, ARG_USER },
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{ "system", no_argument, NULL, ARG_SYSTEM },
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{ "host", required_argument, NULL, 'H' },
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{ "machine", required_argument, NULL, 'M' },
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{ "discover", no_argument, NULL, ARG_DISCOVER },
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{ "type", required_argument, NULL, 't' },
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{ "options", required_argument, NULL, 'o' },
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{ "fsck", required_argument, NULL, ARG_FSCK },
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{ "description", required_argument, NULL, ARG_DESCRIPTION },
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{ "property", required_argument, NULL, 'p' },
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{ "automount", required_argument, NULL, ARG_AUTOMOUNT },
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{ "timeout-idle-sec", required_argument, NULL, ARG_TIMEOUT_IDLE },
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{ "automount-property", required_argument, NULL, ARG_AUTOMOUNT_PROPERTY },
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{ "bind-device", no_argument, NULL, ARG_BIND_DEVICE },
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{ "list", no_argument, NULL, ARG_LIST },
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{ "umount", no_argument, NULL, 'u' },
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{ "unmount", no_argument, NULL, 'u' },
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{},
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};
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int r, c;
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assert(argc >= 0);
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assert(argv);
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if (strstr(program_invocation_short_name, "systemd-umount"))
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arg_action = ACTION_UMOUNT;
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while ((c = getopt_long(argc, argv, "hqH:M:t:o:p:Au", options, NULL)) >= 0)
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switch (c) {
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case 'h':
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help();
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return 0;
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case ARG_VERSION:
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return version();
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case ARG_NO_BLOCK:
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arg_no_block = true;
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break;
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case ARG_NO_PAGER:
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arg_no_pager = true;
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break;
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case ARG_NO_ASK_PASSWORD:
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arg_ask_password = false;
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break;
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case 'q':
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arg_quiet = true;
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break;
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case ARG_USER:
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arg_user = true;
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break;
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case ARG_SYSTEM:
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arg_user = false;
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break;
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case 'H':
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arg_transport = BUS_TRANSPORT_REMOTE;
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arg_host = optarg;
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break;
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case 'M':
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arg_transport = BUS_TRANSPORT_MACHINE;
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arg_host = optarg;
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break;
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case ARG_DISCOVER:
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arg_discover = true;
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break;
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case 't':
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if (free_and_strdup(&arg_mount_type, optarg) < 0)
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return log_oom();
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break;
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case 'o':
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if (free_and_strdup(&arg_mount_options, optarg) < 0)
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return log_oom();
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break;
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case ARG_FSCK:
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r = parse_boolean(optarg);
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if (r < 0)
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return log_error_errno(r, "Failed to parse --fsck= argument: %s", optarg);
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arg_fsck = r;
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break;
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case ARG_DESCRIPTION:
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if (free_and_strdup(&arg_description, optarg) < 0)
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return log_oom();
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break;
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case 'p':
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if (strv_extend(&arg_property, optarg) < 0)
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return log_oom();
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break;
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case 'A':
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arg_action = ACTION_AUTOMOUNT;
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break;
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case ARG_AUTOMOUNT:
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r = parse_boolean(optarg);
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if (r < 0)
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return log_error_errno(r, "--automount= expects a valid boolean parameter: %s", optarg);
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arg_action = r ? ACTION_AUTOMOUNT : ACTION_MOUNT;
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break;
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case ARG_TIMEOUT_IDLE:
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r = parse_sec(optarg, &arg_timeout_idle);
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if (r < 0)
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return log_error_errno(r, "Failed to parse timeout: %s", optarg);
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break;
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case ARG_AUTOMOUNT_PROPERTY:
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if (strv_extend(&arg_automount_property, optarg) < 0)
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return log_oom();
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break;
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case ARG_BIND_DEVICE:
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arg_bind_device = true;
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break;
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case ARG_LIST:
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arg_action = ACTION_LIST;
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break;
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case 'u':
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arg_action = ACTION_UMOUNT;
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break;
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case '?':
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return -EINVAL;
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default:
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assert_not_reached("Unhandled option");
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}
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if (arg_user && arg_transport != BUS_TRANSPORT_LOCAL) {
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log_error("Execution in user context is not supported on non-local systems.");
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return -EINVAL;
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}
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if (arg_action == ACTION_LIST) {
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if (optind < argc) {
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log_error("Too many arguments.");
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return -EINVAL;
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}
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if (arg_transport != BUS_TRANSPORT_LOCAL) {
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log_error("Listing devices only supported locally.");
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return -EOPNOTSUPP;
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}
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} else if (arg_action == ACTION_UMOUNT) {
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if (optind >= argc) {
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log_error("At least one argument required.");
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return -EINVAL;
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}
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if (arg_transport != BUS_TRANSPORT_LOCAL) {
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int i;
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for (i = optind; i < argc; i++)
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if (!path_is_absolute(argv[i]) ) {
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log_error("Only absolute path is supported: %s", argv[i]);
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return -EINVAL;
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}
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}
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} else {
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if (optind >= argc) {
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log_error("At least one argument required.");
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return -EINVAL;
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}
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if (argc > optind+2) {
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log_error("At most two arguments required.");
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return -EINVAL;
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}
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if (arg_transport == BUS_TRANSPORT_LOCAL) {
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_cleanup_free_ char *u = NULL, *p = NULL;
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u = fstab_node_to_udev_node(argv[optind]);
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if (!u)
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return log_oom();
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r = path_make_absolute_cwd(u, &p);
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if (r < 0)
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return log_error_errno(r, "Failed to make path absolute: %m");
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arg_mount_what = canonicalize_file_name(p);
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if (!arg_mount_what)
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return log_error_errno(errno, "Failed to canonicalize path: %m");
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} else {
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arg_mount_what = strdup(argv[optind+1]);
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if (!arg_mount_what)
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return log_oom();
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path_kill_slashes(arg_mount_what);
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if (!path_is_absolute(arg_mount_what)) {
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log_error("Only absolute path is supported: %s", arg_mount_what);
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return -EINVAL;
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}
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}
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if (argc > optind+1) {
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if (arg_transport == BUS_TRANSPORT_LOCAL) {
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_cleanup_free_ char *p = NULL;
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r = path_make_absolute_cwd(argv[optind+1], &p);
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if (r < 0)
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return log_error_errno(r, "Failed to make path absolute: %m");
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arg_mount_where = canonicalize_file_name(p);
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if (!arg_mount_where)
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return log_error_errno(errno, "Failed to canonicalize path: %m");
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} else {
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arg_mount_where = strdup(argv[optind+1]);
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if (!arg_mount_where)
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return log_oom();
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path_kill_slashes(arg_mount_where);
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if (!path_is_absolute(arg_mount_where)) {
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log_error("Only absolute path is supported: %s", arg_mount_where);
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return -EINVAL;
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}
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}
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} else
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arg_discover = true;
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if (arg_discover && arg_transport != BUS_TRANSPORT_LOCAL) {
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log_error("Automatic mount location discovery is only supported locally.");
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return -EOPNOTSUPP;
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}
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}
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return 1;
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}
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static int transient_unit_set_properties(sd_bus_message *m, char **properties) {
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int r;
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if (!isempty(arg_description)) {
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r = sd_bus_message_append(m, "(sv)", "Description", "s", arg_description);
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if (r < 0)
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return r;
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}
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if (arg_bind_device && is_device_path(arg_mount_what)) {
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_cleanup_free_ char *device_unit = NULL;
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r = unit_name_from_path(arg_mount_what, ".device", &device_unit);
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if (r < 0)
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return r;
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r = sd_bus_message_append(m, "(sv)(sv)",
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"After", "as", 1, device_unit,
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"BindsTo", "as", 1, device_unit);
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if (r < 0)
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return r;
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}
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r = bus_append_unit_property_assignment_many(m, properties);
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if (r < 0)
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return r;
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return 0;
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}
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static int transient_mount_set_properties(sd_bus_message *m) {
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int r;
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assert(m);
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r = transient_unit_set_properties(m, arg_property);
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if (r < 0)
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return r;
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if (arg_mount_what) {
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r = sd_bus_message_append(m, "(sv)", "What", "s", arg_mount_what);
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if (r < 0)
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return r;
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}
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if (arg_mount_type) {
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r = sd_bus_message_append(m, "(sv)", "Type", "s", arg_mount_type);
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if (r < 0)
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return r;
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}
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if (arg_mount_options) {
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r = sd_bus_message_append(m, "(sv)", "Options", "s", arg_mount_options);
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if (r < 0)
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return r;
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}
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if (arg_fsck) {
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_cleanup_free_ char *fsck = NULL;
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r = unit_name_from_path_instance("systemd-fsck", arg_mount_what, ".service", &fsck);
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if (r < 0)
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return r;
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r = sd_bus_message_append(m,
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"(sv)(sv)",
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"Requires", "as", 1, fsck,
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"After", "as", 1, fsck);
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if (r < 0)
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return r;
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}
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return 0;
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}
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static int transient_automount_set_properties(sd_bus_message *m) {
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int r;
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assert(m);
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r = transient_unit_set_properties(m, arg_automount_property);
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if (r < 0)
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return r;
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if (arg_timeout_idle != USEC_INFINITY) {
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r = sd_bus_message_append(m, "(sv)", "TimeoutIdleUSec", "t", arg_timeout_idle);
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if (r < 0)
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return r;
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}
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return 0;
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}
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static int start_transient_mount(
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sd_bus *bus,
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char **argv) {
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_cleanup_(sd_bus_message_unrefp) sd_bus_message *m = NULL, *reply = NULL;
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_cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL;
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_cleanup_(bus_wait_for_jobs_freep) BusWaitForJobs *w = NULL;
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_cleanup_free_ char *mount_unit = NULL;
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int r;
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if (!arg_no_block) {
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r = bus_wait_for_jobs_new(bus, &w);
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if (r < 0)
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return log_error_errno(r, "Could not watch jobs: %m");
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}
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r = unit_name_from_path(arg_mount_where, ".mount", &mount_unit);
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if (r < 0)
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return log_error_errno(r, "Failed to make mount unit name: %m");
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r = sd_bus_message_new_method_call(
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bus,
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&m,
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"org.freedesktop.systemd1",
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"/org/freedesktop/systemd1",
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"org.freedesktop.systemd1.Manager",
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"StartTransientUnit");
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if (r < 0)
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return bus_log_create_error(r);
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r = sd_bus_message_set_allow_interactive_authorization(m, arg_ask_password);
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if (r < 0)
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return bus_log_create_error(r);
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|
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/* Name and mode */
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r = sd_bus_message_append(m, "ss", mount_unit, "fail");
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if (r < 0)
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return bus_log_create_error(r);
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|
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/* Properties */
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r = sd_bus_message_open_container(m, 'a', "(sv)");
|
|
if (r < 0)
|
|
return bus_log_create_error(r);
|
|
|
|
r = transient_mount_set_properties(m);
|
|
if (r < 0)
|
|
return bus_log_create_error(r);
|
|
|
|
r = sd_bus_message_close_container(m);
|
|
if (r < 0)
|
|
return bus_log_create_error(r);
|
|
|
|
/* Auxiliary units */
|
|
r = sd_bus_message_append(m, "a(sa(sv))", 0);
|
|
if (r < 0)
|
|
return bus_log_create_error(r);
|
|
|
|
polkit_agent_open_if_enabled();
|
|
|
|
r = sd_bus_call(bus, m, 0, &error, &reply);
|
|
if (r < 0)
|
|
return log_error_errno(r, "Failed to start transient mount unit: %s", bus_error_message(&error, r));
|
|
|
|
if (w) {
|
|
const char *object;
|
|
|
|
r = sd_bus_message_read(reply, "o", &object);
|
|
if (r < 0)
|
|
return bus_log_parse_error(r);
|
|
|
|
r = bus_wait_for_jobs_one(w, object, arg_quiet);
|
|
if (r < 0)
|
|
return r;
|
|
}
|
|
|
|
if (!arg_quiet)
|
|
log_info("Started unit %s%s%s for mount point: %s%s%s",
|
|
ansi_highlight(), mount_unit, ansi_normal(),
|
|
ansi_highlight(), arg_mount_where, ansi_normal());
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int start_transient_automount(
|
|
sd_bus *bus,
|
|
char **argv) {
|
|
|
|
_cleanup_(sd_bus_message_unrefp) sd_bus_message *m = NULL, *reply = NULL;
|
|
_cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL;
|
|
_cleanup_(bus_wait_for_jobs_freep) BusWaitForJobs *w = NULL;
|
|
_cleanup_free_ char *automount_unit = NULL, *mount_unit = NULL;
|
|
int r;
|
|
|
|
if (!arg_no_block) {
|
|
r = bus_wait_for_jobs_new(bus, &w);
|
|
if (r < 0)
|
|
return log_error_errno(r, "Could not watch jobs: %m");
|
|
}
|
|
|
|
r = unit_name_from_path(arg_mount_where, ".automount", &automount_unit);
|
|
if (r < 0)
|
|
return log_error_errno(r, "Failed to make automount unit name: %m");
|
|
|
|
r = unit_name_from_path(arg_mount_where, ".mount", &mount_unit);
|
|
if (r < 0)
|
|
return log_error_errno(r, "Failed to make mount unit name: %m");
|
|
|
|
r = sd_bus_message_new_method_call(
|
|
bus,
|
|
&m,
|
|
"org.freedesktop.systemd1",
|
|
"/org/freedesktop/systemd1",
|
|
"org.freedesktop.systemd1.Manager",
|
|
"StartTransientUnit");
|
|
if (r < 0)
|
|
return bus_log_create_error(r);
|
|
|
|
r = sd_bus_message_set_allow_interactive_authorization(m, arg_ask_password);
|
|
if (r < 0)
|
|
return bus_log_create_error(r);
|
|
|
|
/* Name and mode */
|
|
r = sd_bus_message_append(m, "ss", automount_unit, "fail");
|
|
if (r < 0)
|
|
return bus_log_create_error(r);
|
|
|
|
/* Properties */
|
|
r = sd_bus_message_open_container(m, 'a', "(sv)");
|
|
if (r < 0)
|
|
return bus_log_create_error(r);
|
|
|
|
r = transient_automount_set_properties(m);
|
|
if (r < 0)
|
|
return bus_log_create_error(r);
|
|
|
|
r = sd_bus_message_close_container(m);
|
|
if (r < 0)
|
|
return bus_log_create_error(r);
|
|
|
|
/* Auxiliary units */
|
|
r = sd_bus_message_open_container(m, 'a', "(sa(sv))");
|
|
if (r < 0)
|
|
return bus_log_create_error(r);
|
|
|
|
r = sd_bus_message_open_container(m, 'r', "sa(sv)");
|
|
if (r < 0)
|
|
return bus_log_create_error(r);
|
|
|
|
r = sd_bus_message_append(m, "s", mount_unit);
|
|
if (r < 0)
|
|
return bus_log_create_error(r);
|
|
|
|
r = sd_bus_message_open_container(m, 'a', "(sv)");
|
|
if (r < 0)
|
|
return bus_log_create_error(r);
|
|
|
|
r = transient_mount_set_properties(m);
|
|
if (r < 0)
|
|
return bus_log_create_error(r);
|
|
|
|
r = sd_bus_message_close_container(m);
|
|
if (r < 0)
|
|
return bus_log_create_error(r);
|
|
|
|
r = sd_bus_message_close_container(m);
|
|
if (r < 0)
|
|
return bus_log_create_error(r);
|
|
|
|
r = sd_bus_message_close_container(m);
|
|
if (r < 0)
|
|
return bus_log_create_error(r);
|
|
|
|
polkit_agent_open_if_enabled();
|
|
|
|
r = sd_bus_call(bus, m, 0, &error, &reply);
|
|
if (r < 0)
|
|
return log_error_errno(r, "Failed to start transient automount unit: %s", bus_error_message(&error, r));
|
|
|
|
if (w) {
|
|
const char *object;
|
|
|
|
r = sd_bus_message_read(reply, "o", &object);
|
|
if (r < 0)
|
|
return bus_log_parse_error(r);
|
|
|
|
r = bus_wait_for_jobs_one(w, object, arg_quiet);
|
|
if (r < 0)
|
|
return r;
|
|
}
|
|
|
|
if (!arg_quiet)
|
|
log_info("Started unit %s%s%s for mount point: %s%s%s",
|
|
ansi_highlight(), automount_unit, ansi_normal(),
|
|
ansi_highlight(), arg_mount_where, ansi_normal());
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int find_mount_points(const char *what, char ***list) {
|
|
_cleanup_fclose_ FILE *proc_self_mountinfo = NULL;
|
|
_cleanup_strv_free_ char **l = NULL;
|
|
size_t bufsize = 0, n = 0;
|
|
|
|
assert(what);
|
|
assert(list);
|
|
|
|
/* Returns all mount points obtained from /proc/self/mountinfo in *list,
|
|
* and the number of mount points as return value. */
|
|
|
|
proc_self_mountinfo = fopen("/proc/self/mountinfo", "re");
|
|
if (!proc_self_mountinfo)
|
|
return log_error_errno(errno, "Can't open /proc/self/mountinfo: %m");
|
|
|
|
for (;;) {
|
|
_cleanup_free_ char *path = NULL, *where = NULL, *dev = NULL;
|
|
int r;
|
|
|
|
r = fscanf(proc_self_mountinfo,
|
|
"%*s " /* (1) mount id */
|
|
"%*s " /* (2) parent id */
|
|
"%*s " /* (3) major:minor */
|
|
"%*s " /* (4) root */
|
|
"%ms " /* (5) mount point */
|
|
"%*s" /* (6) mount options */
|
|
"%*[^-]" /* (7) optional fields */
|
|
"- " /* (8) separator */
|
|
"%*s " /* (9) file system type */
|
|
"%ms" /* (10) mount source */
|
|
"%*s" /* (11) mount options 2 */
|
|
"%*[^\n]", /* some rubbish at the end */
|
|
&path, &dev);
|
|
if (r != 2) {
|
|
if (r == EOF)
|
|
break;
|
|
|
|
continue;
|
|
}
|
|
|
|
if (!streq(what, dev))
|
|
continue;
|
|
|
|
r = cunescape(path, UNESCAPE_RELAX, &where);
|
|
if (r < 0)
|
|
continue;
|
|
|
|
/* one extra slot is needed for the terminating NULL */
|
|
if (!GREEDY_REALLOC(l, bufsize, n + 2))
|
|
return log_oom();
|
|
|
|
l[n++] = where;
|
|
where = NULL;
|
|
}
|
|
|
|
if (!GREEDY_REALLOC(l, bufsize, n + 1))
|
|
return log_oom();
|
|
|
|
l[n] = NULL;
|
|
*list = l;
|
|
l = NULL; /* avoid freeing */
|
|
|
|
return n;
|
|
}
|
|
|
|
static int find_loop_device(const char *backing_file, char **loop_dev) {
|
|
_cleanup_closedir_ DIR *d = NULL;
|
|
struct dirent *de;
|
|
_cleanup_free_ char *l = NULL;
|
|
|
|
assert(backing_file);
|
|
assert(loop_dev);
|
|
|
|
d = opendir("/sys/devices/virtual/block");
|
|
if (!d)
|
|
return -errno;
|
|
|
|
FOREACH_DIRENT(de, d, return -errno) {
|
|
_cleanup_free_ char *sys = NULL, *fname = NULL;
|
|
int r;
|
|
|
|
dirent_ensure_type(d, de);
|
|
|
|
if (de->d_type != DT_DIR)
|
|
continue;
|
|
|
|
if (!startswith(de->d_name, "loop"))
|
|
continue;
|
|
|
|
sys = strjoin("/sys/devices/virtual/block/", de->d_name, "/loop/backing_file");
|
|
if (!sys)
|
|
return -ENOMEM;
|
|
|
|
r = read_one_line_file(sys, &fname);
|
|
if (r < 0) {
|
|
log_debug_errno(r, "Failed to read %s, ignoring: %m", sys);
|
|
continue;
|
|
}
|
|
|
|
if (files_same(fname, backing_file, 0) <= 0)
|
|
continue;
|
|
|
|
l = strjoin("/dev/", de->d_name);
|
|
if (!l)
|
|
return -ENOMEM;
|
|
|
|
break;
|
|
}
|
|
|
|
if (!l)
|
|
return -ENXIO;
|
|
|
|
*loop_dev = l;
|
|
l = NULL; /* avoid freeing */
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int stop_mount(
|
|
sd_bus *bus,
|
|
const char *where,
|
|
const char *suffix) {
|
|
|
|
_cleanup_(sd_bus_message_unrefp) sd_bus_message *m = NULL, *reply = NULL;
|
|
_cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL;
|
|
_cleanup_(bus_wait_for_jobs_freep) BusWaitForJobs *w = NULL;
|
|
_cleanup_free_ char *mount_unit = NULL;
|
|
int r;
|
|
|
|
if (!arg_no_block) {
|
|
r = bus_wait_for_jobs_new(bus, &w);
|
|
if (r < 0)
|
|
return log_error_errno(r, "Could not watch jobs: %m");
|
|
}
|
|
|
|
r = unit_name_from_path(where, suffix, &mount_unit);
|
|
if (r < 0)
|
|
return log_error_errno(r, "Failed to make mount unit name from path %s: %m", where);
|
|
|
|
r = sd_bus_message_new_method_call(
|
|
bus,
|
|
&m,
|
|
"org.freedesktop.systemd1",
|
|
"/org/freedesktop/systemd1",
|
|
"org.freedesktop.systemd1.Manager",
|
|
"StopUnit");
|
|
if (r < 0)
|
|
return bus_log_create_error(r);
|
|
|
|
r = sd_bus_message_set_allow_interactive_authorization(m, arg_ask_password);
|
|
if (r < 0)
|
|
return bus_log_create_error(r);
|
|
|
|
/* Name and mode */
|
|
r = sd_bus_message_append(m, "ss", mount_unit, "fail");
|
|
if (r < 0)
|
|
return bus_log_create_error(r);
|
|
|
|
polkit_agent_open_if_enabled();
|
|
|
|
r = sd_bus_call(bus, m, 0, &error, &reply);
|
|
if (r < 0)
|
|
return log_error_errno(r, "Failed to stop mount unit: %s", bus_error_message(&error, r));
|
|
|
|
if (w) {
|
|
const char *object;
|
|
|
|
r = sd_bus_message_read(reply, "o", &object);
|
|
if (r < 0)
|
|
return bus_log_parse_error(r);
|
|
|
|
r = bus_wait_for_jobs_one(w, object, arg_quiet);
|
|
if (r < 0)
|
|
return r;
|
|
}
|
|
|
|
if (!arg_quiet)
|
|
log_info("Stopped unit %s%s%s for mount point: %s%s%s",
|
|
ansi_highlight(), mount_unit, ansi_normal(),
|
|
ansi_highlight(), where, ansi_normal());
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int stop_mounts(
|
|
sd_bus *bus,
|
|
const char *where) {
|
|
|
|
int r;
|
|
|
|
if (path_equal(where, "/")) {
|
|
log_error("Refusing to operate on root directory: %s", where);
|
|
return -EINVAL;
|
|
}
|
|
|
|
if (!path_is_safe(where)) {
|
|
log_error("Path contains unsafe components: %s", where);
|
|
return -EINVAL;
|
|
}
|
|
|
|
r = stop_mount(bus, where, ".mount");
|
|
if (r < 0)
|
|
return r;
|
|
|
|
r = stop_mount(bus, where, ".automount");
|
|
if (r < 0)
|
|
return r;
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int umount_by_device(sd_bus *bus, const char *what) {
|
|
_cleanup_udev_device_unref_ struct udev_device *d = NULL;
|
|
_cleanup_udev_unref_ struct udev *udev = NULL;
|
|
_cleanup_strv_free_ char **list = NULL;
|
|
struct stat st;
|
|
const char *v;
|
|
char **l;
|
|
int r, r2 = 0;
|
|
|
|
assert(what);
|
|
|
|
if (stat(what, &st) < 0)
|
|
return log_error_errno(errno, "Can't stat %s: %m", what);
|
|
|
|
if (!S_ISBLK(st.st_mode)) {
|
|
log_error("Not a block device: %s", what);
|
|
return -ENOTBLK;
|
|
}
|
|
|
|
udev = udev_new();
|
|
if (!udev)
|
|
return log_oom();
|
|
|
|
d = udev_device_new_from_devnum(udev, 'b', st.st_rdev);
|
|
if (!d)
|
|
return log_oom();
|
|
|
|
v = udev_device_get_property_value(d, "ID_FS_USAGE");
|
|
if (!streq_ptr(v, "filesystem")) {
|
|
log_error("%s does not contain a known file system.", what);
|
|
return -EINVAL;
|
|
}
|
|
|
|
v = udev_device_get_property_value(d, "SYSTEMD_MOUNT_WHERE");
|
|
if (!isempty(v))
|
|
r2 = stop_mounts(bus, v);
|
|
|
|
r = find_mount_points(what, &list);
|
|
if (r < 0)
|
|
return r;
|
|
|
|
for (l = list; *l; l++) {
|
|
r = stop_mounts(bus, *l);
|
|
if (r < 0)
|
|
r2 = r;
|
|
}
|
|
|
|
return r2;
|
|
}
|
|
|
|
static int umount_loop(sd_bus *bus, const char *backing_file) {
|
|
_cleanup_free_ char *loop_dev = NULL;
|
|
int r;
|
|
|
|
assert(backing_file);
|
|
|
|
r = find_loop_device(backing_file, &loop_dev);
|
|
if (r < 0)
|
|
return log_error_errno(r, r == -ENXIO ? "File %s is not mounted." : "Can't get loop device for %s: %m", backing_file);
|
|
|
|
return umount_by_device(bus, loop_dev);
|
|
}
|
|
|
|
static int action_umount(
|
|
sd_bus *bus,
|
|
int argc,
|
|
char **argv) {
|
|
|
|
int i, r, r2 = 0;
|
|
|
|
if (arg_transport != BUS_TRANSPORT_LOCAL) {
|
|
for (i = optind; i < argc; i++) {
|
|
_cleanup_free_ char *p = NULL;
|
|
|
|
p = strdup(argv[i]);
|
|
if (!p)
|
|
return log_oom();
|
|
|
|
path_kill_slashes(p);
|
|
|
|
r = stop_mounts(bus, p);
|
|
if (r < 0)
|
|
r2 = r;
|
|
}
|
|
return r2;
|
|
}
|
|
|
|
for (i = optind; i < argc; i++) {
|
|
_cleanup_free_ char *u = NULL, *a = NULL, *p = NULL;
|
|
struct stat st;
|
|
|
|
u = fstab_node_to_udev_node(argv[i]);
|
|
if (!u)
|
|
return log_oom();
|
|
|
|
r = path_make_absolute_cwd(u, &a);
|
|
if (r < 0) {
|
|
r2 = log_error_errno(r, "Failed to make path absolute: %m");
|
|
continue;
|
|
}
|
|
|
|
p = canonicalize_file_name(a);
|
|
|
|
if (stat(p, &st) < 0)
|
|
return log_error_errno(errno, "Can't stat %s: %m", p);
|
|
|
|
if (S_ISBLK(st.st_mode))
|
|
r = umount_by_device(bus, p);
|
|
else if (S_ISREG(st.st_mode))
|
|
r = umount_loop(bus, p);
|
|
else if (S_ISDIR(st.st_mode))
|
|
r = stop_mounts(bus, p);
|
|
else {
|
|
log_error("Invalid file type: %s", p);
|
|
r = -EINVAL;
|
|
}
|
|
|
|
if (r < 0)
|
|
r2 = r;
|
|
}
|
|
|
|
return r2;
|
|
}
|
|
|
|
static int acquire_mount_type(struct udev_device *d) {
|
|
const char *v;
|
|
|
|
assert(d);
|
|
|
|
if (arg_mount_type)
|
|
return 0;
|
|
|
|
v = udev_device_get_property_value(d, "ID_FS_TYPE");
|
|
if (isempty(v))
|
|
return 0;
|
|
|
|
arg_mount_type = strdup(v);
|
|
if (!arg_mount_type)
|
|
return log_oom();
|
|
|
|
log_debug("Discovered type=%s", arg_mount_type);
|
|
return 1;
|
|
}
|
|
|
|
static int acquire_mount_options(struct udev_device *d) {
|
|
const char *v;
|
|
|
|
if (arg_mount_options)
|
|
return 0;
|
|
|
|
v = udev_device_get_property_value(d, "SYSTEMD_MOUNT_OPTIONS");
|
|
if (isempty(v))
|
|
return 0;
|
|
|
|
arg_mount_options = strdup(v);
|
|
if (!arg_mount_options)
|
|
return log_oom();
|
|
|
|
log_debug("Discovered options=%s", arg_mount_options);
|
|
return 1;
|
|
}
|
|
|
|
static const char *get_model(struct udev_device *d) {
|
|
const char *model;
|
|
|
|
assert(d);
|
|
|
|
model = udev_device_get_property_value(d, "ID_MODEL_FROM_DATABASE");
|
|
if (model)
|
|
return model;
|
|
|
|
return udev_device_get_property_value(d, "ID_MODEL");
|
|
}
|
|
|
|
static const char* get_label(struct udev_device *d) {
|
|
const char *label;
|
|
|
|
assert(d);
|
|
|
|
label = udev_device_get_property_value(d, "ID_FS_LABEL");
|
|
if (label)
|
|
return label;
|
|
|
|
return udev_device_get_property_value(d, "ID_PART_ENTRY_NAME");
|
|
}
|
|
|
|
static int acquire_mount_where(struct udev_device *d) {
|
|
const char *v;
|
|
|
|
if (arg_mount_where)
|
|
return 0;
|
|
|
|
v = udev_device_get_property_value(d, "SYSTEMD_MOUNT_WHERE");
|
|
if (isempty(v)) {
|
|
_cleanup_free_ char *escaped = NULL;
|
|
const char *name;
|
|
|
|
name = get_label(d);
|
|
if (!name)
|
|
name = get_model(d);
|
|
if (!name) {
|
|
const char *dn;
|
|
|
|
dn = udev_device_get_devnode(d);
|
|
if (!dn)
|
|
return 0;
|
|
|
|
name = basename(dn);
|
|
}
|
|
|
|
escaped = xescape(name, "\\");
|
|
if (!escaped)
|
|
return log_oom();
|
|
if (!filename_is_valid(escaped))
|
|
return 0;
|
|
|
|
arg_mount_where = strjoin("/run/media/system/", escaped);
|
|
} else
|
|
arg_mount_where = strdup(v);
|
|
|
|
if (!arg_mount_where)
|
|
return log_oom();
|
|
|
|
log_debug("Discovered where=%s", arg_mount_where);
|
|
return 1;
|
|
}
|
|
|
|
static int acquire_mount_where_for_loop_dev(const char *loop_dev) {
|
|
_cleanup_strv_free_ char **list = NULL;
|
|
int r;
|
|
|
|
if (arg_mount_where)
|
|
return 0;
|
|
|
|
r = find_mount_points(loop_dev, &list);
|
|
if (r < 0)
|
|
return r;
|
|
else if (r == 0) {
|
|
log_error("Can't find mount point of %s. It is expected that %s is already mounted on a place.", loop_dev, loop_dev);
|
|
return -EINVAL;
|
|
} else if (r >= 2) {
|
|
log_error("%s is mounted on %d places. It is expected that %s is mounted on a place.", loop_dev, r, loop_dev);
|
|
return -EINVAL;
|
|
}
|
|
|
|
arg_mount_where = strdup(list[0]);
|
|
if (!arg_mount_where)
|
|
return log_oom();
|
|
|
|
log_debug("Discovered where=%s", arg_mount_where);
|
|
return 1;
|
|
}
|
|
|
|
static int acquire_description(struct udev_device *d) {
|
|
const char *model, *label;
|
|
|
|
if (arg_description)
|
|
return 0;
|
|
|
|
model = get_model(d);
|
|
|
|
label = get_label(d);
|
|
if (!label)
|
|
label = udev_device_get_property_value(d, "ID_PART_ENTRY_NUMBER");
|
|
|
|
if (model && label)
|
|
arg_description = strjoin(model, " ", label);
|
|
else if (label)
|
|
arg_description = strdup(label);
|
|
else if (model)
|
|
arg_description = strdup(model);
|
|
else
|
|
return 0;
|
|
|
|
if (!arg_description)
|
|
return log_oom();
|
|
|
|
log_debug("Discovered description=%s", arg_description);
|
|
return 1;
|
|
}
|
|
|
|
static int acquire_removable(struct udev_device *d) {
|
|
const char *v;
|
|
|
|
/* Shortcut this if there's no reason to check it */
|
|
if (arg_action != ACTION_DEFAULT && arg_timeout_idle_set && arg_bind_device >= 0)
|
|
return 0;
|
|
|
|
for (;;) {
|
|
v = udev_device_get_sysattr_value(d, "removable");
|
|
if (v)
|
|
break;
|
|
|
|
d = udev_device_get_parent(d);
|
|
if (!d)
|
|
return 0;
|
|
|
|
if (!streq_ptr(udev_device_get_subsystem(d), "block"))
|
|
return 0;
|
|
}
|
|
|
|
if (parse_boolean(v) <= 0)
|
|
return 0;
|
|
|
|
log_debug("Discovered removable device.");
|
|
|
|
if (arg_action == ACTION_DEFAULT) {
|
|
log_debug("Automatically turning on automount.");
|
|
arg_action = ACTION_AUTOMOUNT;
|
|
}
|
|
|
|
if (!arg_timeout_idle_set) {
|
|
log_debug("Setting idle timeout to 1s.");
|
|
arg_timeout_idle = USEC_PER_SEC;
|
|
}
|
|
|
|
if (arg_bind_device < 0) {
|
|
log_debug("Binding automount unit to device.");
|
|
arg_bind_device = true;
|
|
}
|
|
|
|
return 1;
|
|
}
|
|
|
|
static int discover_loop_backing_file(void) {
|
|
_cleanup_udev_device_unref_ struct udev_device *d = NULL;
|
|
_cleanup_udev_unref_ struct udev *udev = NULL;
|
|
_cleanup_free_ char *loop_dev = NULL;
|
|
struct stat st;
|
|
const char *v;
|
|
int r;
|
|
|
|
r = find_loop_device(arg_mount_what, &loop_dev);
|
|
if (r < 0 && r != -ENXIO)
|
|
return log_error_errno(errno, "Can't get loop device for %s: %m", arg_mount_what);
|
|
|
|
if (r == -ENXIO) {
|
|
_cleanup_free_ char *escaped = NULL;
|
|
|
|
if (arg_mount_where)
|
|
return 0;
|
|
|
|
escaped = xescape(basename(arg_mount_what), "\\");
|
|
if (!escaped)
|
|
return log_oom();
|
|
if (!filename_is_valid(escaped)) {
|
|
log_error("Escaped name %s is not a valid filename.", escaped);
|
|
return -EINVAL;
|
|
}
|
|
|
|
arg_mount_where = strjoin("/run/media/system/", escaped);
|
|
if (!arg_mount_where)
|
|
return log_oom();
|
|
|
|
log_debug("Discovered where=%s", arg_mount_where);
|
|
return 0;
|
|
}
|
|
|
|
if (stat(loop_dev, &st) < 0)
|
|
return log_error_errno(errno, "Can't stat %s: %m", loop_dev);
|
|
|
|
if (!S_ISBLK(st.st_mode)) {
|
|
log_error("Invalid file type: %s", loop_dev);
|
|
return -EINVAL;
|
|
}
|
|
|
|
udev = udev_new();
|
|
if (!udev)
|
|
return log_oom();
|
|
|
|
d = udev_device_new_from_devnum(udev, 'b', st.st_rdev);
|
|
if (!d)
|
|
return log_oom();
|
|
|
|
v = udev_device_get_property_value(d, "ID_FS_USAGE");
|
|
if (!streq_ptr(v, "filesystem")) {
|
|
log_error("%s does not contain a known file system.", arg_mount_what);
|
|
return -EINVAL;
|
|
}
|
|
|
|
r = acquire_mount_type(d);
|
|
if (r < 0)
|
|
return r;
|
|
|
|
r = acquire_mount_options(d);
|
|
if (r < 0)
|
|
return r;
|
|
|
|
r = acquire_mount_where_for_loop_dev(loop_dev);
|
|
if (r < 0)
|
|
return r;
|
|
|
|
r = acquire_description(d);
|
|
if (r < 0)
|
|
return r;
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int discover_device(void) {
|
|
_cleanup_udev_device_unref_ struct udev_device *d = NULL;
|
|
_cleanup_udev_unref_ struct udev *udev = NULL;
|
|
struct stat st;
|
|
const char *v;
|
|
int r;
|
|
|
|
if (stat(arg_mount_what, &st) < 0)
|
|
return log_error_errno(errno, "Can't stat %s: %m", arg_mount_what);
|
|
|
|
if (S_ISREG(st.st_mode))
|
|
return discover_loop_backing_file();
|
|
|
|
if (!S_ISBLK(st.st_mode)) {
|
|
log_error("Invalid file type: %s", arg_mount_what);
|
|
return -EINVAL;
|
|
}
|
|
|
|
udev = udev_new();
|
|
if (!udev)
|
|
return log_oom();
|
|
|
|
d = udev_device_new_from_devnum(udev, 'b', st.st_rdev);
|
|
if (!d)
|
|
return log_oom();
|
|
|
|
v = udev_device_get_property_value(d, "ID_FS_USAGE");
|
|
if (!streq_ptr(v, "filesystem")) {
|
|
log_error("%s does not contain a known file system.", arg_mount_what);
|
|
return -EINVAL;
|
|
}
|
|
|
|
r = acquire_mount_type(d);
|
|
if (r < 0)
|
|
return r;
|
|
|
|
r = acquire_mount_options(d);
|
|
if (r < 0)
|
|
return r;
|
|
|
|
r = acquire_mount_where(d);
|
|
if (r < 0)
|
|
return r;
|
|
|
|
r = acquire_description(d);
|
|
if (r < 0)
|
|
return r;
|
|
|
|
r = acquire_removable(d);
|
|
if (r < 0)
|
|
return r;
|
|
|
|
return 0;
|
|
}
|
|
|
|
enum {
|
|
COLUMN_NODE,
|
|
COLUMN_PATH,
|
|
COLUMN_MODEL,
|
|
COLUMN_WWN,
|
|
COLUMN_FSTYPE,
|
|
COLUMN_LABEL,
|
|
COLUMN_UUID,
|
|
_COLUMN_MAX,
|
|
};
|
|
|
|
struct item {
|
|
char* columns[_COLUMN_MAX];
|
|
};
|
|
|
|
static int compare_item(const void *a, const void *b) {
|
|
const struct item *x = a, *y = b;
|
|
|
|
if (x->columns[COLUMN_NODE] == y->columns[COLUMN_NODE])
|
|
return 0;
|
|
if (!x->columns[COLUMN_NODE])
|
|
return 1;
|
|
if (!y->columns[COLUMN_NODE])
|
|
return -1;
|
|
|
|
return path_compare(x->columns[COLUMN_NODE], y->columns[COLUMN_NODE]);
|
|
}
|
|
|
|
static int list_devices(void) {
|
|
|
|
static const char * const titles[_COLUMN_MAX] = {
|
|
[COLUMN_NODE] = "NODE",
|
|
[COLUMN_PATH] = "PATH",
|
|
[COLUMN_MODEL] = "MODEL",
|
|
[COLUMN_WWN] = "WWN",
|
|
[COLUMN_FSTYPE] = "TYPE",
|
|
[COLUMN_LABEL] = "LABEL",
|
|
[COLUMN_UUID] = "UUID"
|
|
};
|
|
|
|
_cleanup_udev_enumerate_unref_ struct udev_enumerate *e = NULL;
|
|
_cleanup_udev_unref_ struct udev *udev = NULL;
|
|
struct udev_list_entry *item = NULL, *first = NULL;
|
|
size_t n_allocated = 0, n = 0, i;
|
|
size_t column_width[_COLUMN_MAX];
|
|
struct item *items = NULL;
|
|
unsigned c;
|
|
int r;
|
|
|
|
for (c = 0; c < _COLUMN_MAX; c++)
|
|
column_width[c] = strlen(titles[c]);
|
|
|
|
udev = udev_new();
|
|
if (!udev)
|
|
return log_oom();
|
|
|
|
e = udev_enumerate_new(udev);
|
|
if (!e)
|
|
return log_oom();
|
|
|
|
r = udev_enumerate_add_match_subsystem(e, "block");
|
|
if (r < 0)
|
|
return log_error_errno(r, "Failed to add block match: %m");
|
|
|
|
r = udev_enumerate_add_match_property(e, "ID_FS_USAGE", "filesystem");
|
|
if (r < 0)
|
|
return log_error_errno(r, "Failed to add property match: %m");
|
|
|
|
r = udev_enumerate_scan_devices(e);
|
|
if (r < 0)
|
|
return log_error_errno(r, "Failed to scan devices: %m");
|
|
|
|
first = udev_enumerate_get_list_entry(e);
|
|
udev_list_entry_foreach(item, first) {
|
|
_cleanup_udev_device_unref_ struct udev_device *d;
|
|
struct item *j;
|
|
|
|
d = udev_device_new_from_syspath(udev, udev_list_entry_get_name(item));
|
|
if (!d) {
|
|
r = log_oom();
|
|
goto finish;
|
|
}
|
|
|
|
if (!GREEDY_REALLOC0(items, n_allocated, n+1)) {
|
|
r = log_oom();
|
|
goto finish;
|
|
}
|
|
|
|
j = items + n++;
|
|
|
|
for (c = 0; c < _COLUMN_MAX; c++) {
|
|
const char *x = NULL;
|
|
size_t k;
|
|
|
|
switch (c) {
|
|
|
|
case COLUMN_NODE:
|
|
x = udev_device_get_devnode(d);
|
|
break;
|
|
|
|
case COLUMN_PATH:
|
|
x = udev_device_get_property_value(d, "ID_PATH");
|
|
break;
|
|
|
|
case COLUMN_MODEL:
|
|
x = get_model(d);
|
|
break;
|
|
|
|
case COLUMN_WWN:
|
|
x = udev_device_get_property_value(d, "ID_WWN");
|
|
break;
|
|
|
|
case COLUMN_FSTYPE:
|
|
x = udev_device_get_property_value(d, "ID_FS_TYPE");
|
|
break;
|
|
|
|
case COLUMN_LABEL:
|
|
x = get_label(d);
|
|
break;
|
|
|
|
case COLUMN_UUID:
|
|
x = udev_device_get_property_value(d, "ID_FS_UUID");
|
|
break;
|
|
}
|
|
|
|
if (isempty(x))
|
|
continue;
|
|
|
|
j->columns[c] = strdup(x);
|
|
if (!j->columns[c]) {
|
|
r = log_oom();
|
|
goto finish;
|
|
}
|
|
|
|
k = strlen(x);
|
|
if (k > column_width[c])
|
|
column_width[c] = k;
|
|
}
|
|
}
|
|
|
|
if (n == 0) {
|
|
log_info("No devices found.");
|
|
goto finish;
|
|
}
|
|
|
|
qsort_safe(items, n, sizeof(struct item), compare_item);
|
|
|
|
pager_open(arg_no_pager, false);
|
|
|
|
fputs(ansi_underline(), stdout);
|
|
for (c = 0; c < _COLUMN_MAX; c++) {
|
|
if (c > 0)
|
|
fputc(' ', stdout);
|
|
|
|
printf("%-*s", (int) column_width[c], titles[c]);
|
|
}
|
|
fputs(ansi_normal(), stdout);
|
|
fputc('\n', stdout);
|
|
|
|
for (i = 0; i < n; i++) {
|
|
for (c = 0; c < _COLUMN_MAX; c++) {
|
|
if (c > 0)
|
|
fputc(' ', stdout);
|
|
|
|
printf("%-*s", (int) column_width[c], strna(items[i].columns[c]));
|
|
}
|
|
fputc('\n', stdout);
|
|
}
|
|
|
|
r = 0;
|
|
|
|
finish:
|
|
for (i = 0; i < n; i++)
|
|
for (c = 0; c < _COLUMN_MAX; c++)
|
|
free(items[i].columns[c]);
|
|
|
|
free(items);
|
|
return r;
|
|
}
|
|
|
|
int main(int argc, char* argv[]) {
|
|
_cleanup_(sd_bus_flush_close_unrefp) sd_bus *bus = NULL;
|
|
int r;
|
|
|
|
log_parse_environment();
|
|
log_open();
|
|
|
|
r = parse_argv(argc, argv);
|
|
if (r <= 0)
|
|
goto finish;
|
|
|
|
if (arg_action == ACTION_LIST) {
|
|
r = list_devices();
|
|
goto finish;
|
|
}
|
|
|
|
r = bus_connect_transport_systemd(arg_transport, arg_host, arg_user, &bus);
|
|
if (r < 0) {
|
|
log_error_errno(r, "Failed to create bus connection: %m");
|
|
goto finish;
|
|
}
|
|
|
|
if (arg_action == ACTION_UMOUNT) {
|
|
r = action_umount(bus, argc, argv);
|
|
goto finish;
|
|
}
|
|
|
|
if (!path_is_safe(arg_mount_what)) {
|
|
log_error("Path contains unsafe components: %s", arg_mount_what);
|
|
r = -EINVAL;
|
|
goto finish;
|
|
}
|
|
|
|
if (arg_discover) {
|
|
r = discover_device();
|
|
if (r < 0)
|
|
goto finish;
|
|
}
|
|
|
|
if (!arg_mount_where) {
|
|
log_error("Can't figure out where to mount %s.", arg_mount_what);
|
|
r = -EINVAL;
|
|
goto finish;
|
|
}
|
|
|
|
if (path_equal(arg_mount_where, "/")) {
|
|
log_error("Refusing to operate on root directory.");
|
|
r = -EINVAL;
|
|
goto finish;
|
|
}
|
|
|
|
if (!path_is_safe(arg_mount_where)) {
|
|
log_error("Path contains unsafe components: %s", arg_mount_where);
|
|
r = -EINVAL;
|
|
goto finish;
|
|
}
|
|
|
|
if (streq_ptr(arg_mount_type, "auto"))
|
|
arg_mount_type = mfree(arg_mount_type);
|
|
if (streq_ptr(arg_mount_options, "defaults"))
|
|
arg_mount_options = mfree(arg_mount_options);
|
|
|
|
if (!is_device_path(arg_mount_what))
|
|
arg_fsck = false;
|
|
|
|
if (arg_fsck && arg_mount_type && arg_transport == BUS_TRANSPORT_LOCAL) {
|
|
r = fsck_exists(arg_mount_type);
|
|
if (r < 0)
|
|
log_warning_errno(r, "Couldn't determine whether fsck for %s exists, proceeding anyway.", arg_mount_type);
|
|
else if (r == 0) {
|
|
log_debug("Disabling file system check as fsck for %s doesn't exist.", arg_mount_type);
|
|
arg_fsck = false; /* fsck doesn't exist, let's not attempt it */
|
|
}
|
|
}
|
|
|
|
switch (arg_action) {
|
|
|
|
case ACTION_MOUNT:
|
|
case ACTION_DEFAULT:
|
|
r = start_transient_mount(bus, argv + optind);
|
|
break;
|
|
|
|
case ACTION_AUTOMOUNT:
|
|
r = start_transient_automount(bus, argv + optind);
|
|
break;
|
|
|
|
default:
|
|
assert_not_reached("Unexpected action.");
|
|
}
|
|
|
|
finish:
|
|
bus = sd_bus_flush_close_unref(bus);
|
|
|
|
pager_close();
|
|
|
|
free(arg_mount_what);
|
|
free(arg_mount_where);
|
|
free(arg_mount_type);
|
|
free(arg_mount_options);
|
|
free(arg_description);
|
|
strv_free(arg_property);
|
|
strv_free(arg_automount_property);
|
|
|
|
return r < 0 ? EXIT_FAILURE : EXIT_SUCCESS;
|
|
}
|