1214 lines
38 KiB
C
1214 lines
38 KiB
C
/***
|
|
This file is part of systemd.
|
|
|
|
Copyright 2016 Lennart Poettering
|
|
|
|
systemd is free software; you can redistribute it and/or modify it
|
|
under the terms of the GNU Lesser General Public License as published by
|
|
the Free Software Foundation; either version 2.1 of the License, or
|
|
(at your option) any later version.
|
|
|
|
systemd is distributed in the hope that it will be useful, but
|
|
WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
|
Lesser General Public License for more details.
|
|
|
|
You should have received a copy of the GNU Lesser General Public License
|
|
along with systemd; If not, see <http://www.gnu.org/licenses/>.
|
|
***/
|
|
|
|
#include <getopt.h>
|
|
|
|
#include "libudev.h"
|
|
#include "sd-bus.h"
|
|
|
|
#include "bus-error.h"
|
|
#include "bus-unit-util.h"
|
|
#include "bus-util.h"
|
|
#include "escape.h"
|
|
#include "fstab-util.h"
|
|
#include "pager.h"
|
|
#include "parse-util.h"
|
|
#include "path-util.h"
|
|
#include "spawn-polkit-agent.h"
|
|
#include "strv.h"
|
|
#include "udev-util.h"
|
|
#include "unit-name.h"
|
|
#include "terminal-util.h"
|
|
|
|
enum {
|
|
ACTION_DEFAULT,
|
|
ACTION_MOUNT,
|
|
ACTION_AUTOMOUNT,
|
|
ACTION_UMOUNT,
|
|
ACTION_LIST,
|
|
} arg_action = ACTION_DEFAULT;
|
|
|
|
static bool arg_no_block = false;
|
|
static bool arg_no_pager = false;
|
|
static bool arg_ask_password = true;
|
|
static bool arg_quiet = false;
|
|
static BusTransport arg_transport = BUS_TRANSPORT_LOCAL;
|
|
static bool arg_user = false;
|
|
static const char *arg_host = NULL;
|
|
static bool arg_discover = false;
|
|
static char *arg_mount_what = NULL;
|
|
static char *arg_mount_where = NULL;
|
|
static char *arg_mount_type = NULL;
|
|
static char *arg_mount_options = NULL;
|
|
static char *arg_description = NULL;
|
|
static char **arg_property = NULL;
|
|
static usec_t arg_timeout_idle = USEC_INFINITY;
|
|
static bool arg_timeout_idle_set = false;
|
|
static char **arg_automount_property = NULL;
|
|
static int arg_bind_device = -1;
|
|
static bool arg_fsck = true;
|
|
|
|
static void polkit_agent_open_if_enabled(void) {
|
|
|
|
/* Open the polkit agent as a child process if necessary */
|
|
if (!arg_ask_password)
|
|
return;
|
|
|
|
if (arg_transport != BUS_TRANSPORT_LOCAL)
|
|
return;
|
|
|
|
polkit_agent_open();
|
|
}
|
|
|
|
static void help(void) {
|
|
printf("%s [OPTIONS...] WHAT [WHERE]\n\n"
|
|
"Establish a mount or auto-mount point transiently.\n\n"
|
|
" -h --help Show this help\n"
|
|
" --version Show package version\n"
|
|
" --no-block Do not wait until operation finished\n"
|
|
" --no-pager Do not pipe output into a pager\n"
|
|
" --no-ask-password Do not prompt for password\n"
|
|
" -q --quiet Suppress information messages during runtime\n"
|
|
" --user Run as user unit\n"
|
|
" -H --host=[USER@]HOST Operate on remote host\n"
|
|
" -M --machine=CONTAINER Operate on local container\n"
|
|
" --discover Discover mount device metadata\n"
|
|
" -t --type=TYPE File system type\n"
|
|
" -o --options=OPTIONS Mount options\n"
|
|
" --fsck=no Don't run file system check before mount\n"
|
|
" --description=TEXT Description for unit\n"
|
|
" -p --property=NAME=VALUE Set mount unit property\n"
|
|
" -A --automount=BOOL Create an auto-mount point\n"
|
|
" --timeout-idle-sec=SEC Specify automount idle timeout\n"
|
|
" --automount-property=NAME=VALUE\n"
|
|
" Set automount unit property\n"
|
|
" --bind-device Bind automount unit to device\n"
|
|
" --list List mountable block devices\n"
|
|
" -u --umount Unmount mount points\n"
|
|
, program_invocation_short_name);
|
|
}
|
|
|
|
static int parse_argv(int argc, char *argv[]) {
|
|
|
|
enum {
|
|
ARG_VERSION = 0x100,
|
|
ARG_NO_BLOCK,
|
|
ARG_NO_PAGER,
|
|
ARG_NO_ASK_PASSWORD,
|
|
ARG_USER,
|
|
ARG_SYSTEM,
|
|
ARG_DISCOVER,
|
|
ARG_MOUNT_TYPE,
|
|
ARG_MOUNT_OPTIONS,
|
|
ARG_FSCK,
|
|
ARG_DESCRIPTION,
|
|
ARG_TIMEOUT_IDLE,
|
|
ARG_AUTOMOUNT,
|
|
ARG_AUTOMOUNT_PROPERTY,
|
|
ARG_BIND_DEVICE,
|
|
ARG_LIST,
|
|
};
|
|
|
|
static const struct option options[] = {
|
|
{ "help", no_argument, NULL, 'h' },
|
|
{ "version", no_argument, NULL, ARG_VERSION },
|
|
{ "no-block", no_argument, NULL, ARG_NO_BLOCK },
|
|
{ "no-pager", no_argument, NULL, ARG_NO_PAGER },
|
|
{ "no-ask-password", no_argument, NULL, ARG_NO_ASK_PASSWORD },
|
|
{ "quiet", no_argument, NULL, 'q' },
|
|
{ "user", no_argument, NULL, ARG_USER },
|
|
{ "system", no_argument, NULL, ARG_SYSTEM },
|
|
{ "host", required_argument, NULL, 'H' },
|
|
{ "machine", required_argument, NULL, 'M' },
|
|
{ "discover", no_argument, NULL, ARG_DISCOVER },
|
|
{ "type", required_argument, NULL, 't' },
|
|
{ "options", required_argument, NULL, 'o' },
|
|
{ "fsck", required_argument, NULL, ARG_FSCK },
|
|
{ "description", required_argument, NULL, ARG_DESCRIPTION },
|
|
{ "property", required_argument, NULL, 'p' },
|
|
{ "automount", required_argument, NULL, ARG_AUTOMOUNT },
|
|
{ "timeout-idle-sec", required_argument, NULL, ARG_TIMEOUT_IDLE },
|
|
{ "automount-property", required_argument, NULL, ARG_AUTOMOUNT_PROPERTY },
|
|
{ "bind-device", no_argument, NULL, ARG_BIND_DEVICE },
|
|
{ "list", no_argument, NULL, ARG_LIST },
|
|
{ "umount", no_argument, NULL, 'u' },
|
|
{ "unmount", no_argument, NULL, 'u' },
|
|
{},
|
|
};
|
|
|
|
int r, c;
|
|
|
|
assert(argc >= 0);
|
|
assert(argv);
|
|
|
|
if (strstr(program_invocation_short_name, "systemd-umount"))
|
|
arg_action = ACTION_UMOUNT;
|
|
|
|
while ((c = getopt_long(argc, argv, "hqH:M:t:o:p:Au", options, NULL)) >= 0)
|
|
|
|
switch (c) {
|
|
|
|
case 'h':
|
|
help();
|
|
return 0;
|
|
|
|
case ARG_VERSION:
|
|
return version();
|
|
|
|
case ARG_NO_BLOCK:
|
|
arg_no_block = true;
|
|
break;
|
|
|
|
case ARG_NO_PAGER:
|
|
arg_no_pager = true;
|
|
break;
|
|
|
|
case ARG_NO_ASK_PASSWORD:
|
|
arg_ask_password = false;
|
|
break;
|
|
|
|
case 'q':
|
|
arg_quiet = true;
|
|
break;
|
|
|
|
case ARG_USER:
|
|
arg_user = true;
|
|
break;
|
|
|
|
case ARG_SYSTEM:
|
|
arg_user = false;
|
|
break;
|
|
|
|
case 'H':
|
|
arg_transport = BUS_TRANSPORT_REMOTE;
|
|
arg_host = optarg;
|
|
break;
|
|
|
|
case 'M':
|
|
arg_transport = BUS_TRANSPORT_MACHINE;
|
|
arg_host = optarg;
|
|
break;
|
|
|
|
case ARG_DISCOVER:
|
|
arg_discover = true;
|
|
break;
|
|
|
|
case 't':
|
|
if (free_and_strdup(&arg_mount_type, optarg) < 0)
|
|
return log_oom();
|
|
break;
|
|
|
|
case 'o':
|
|
if (free_and_strdup(&arg_mount_options, optarg) < 0)
|
|
return log_oom();
|
|
break;
|
|
|
|
case ARG_FSCK:
|
|
r = parse_boolean(optarg);
|
|
if (r < 0)
|
|
return log_error_errno(r, "Failed to parse --fsck= argument: %s", optarg);
|
|
|
|
arg_fsck = r;
|
|
break;
|
|
|
|
case ARG_DESCRIPTION:
|
|
if (free_and_strdup(&arg_description, optarg) < 0)
|
|
return log_oom();
|
|
break;
|
|
|
|
case 'p':
|
|
if (strv_extend(&arg_property, optarg) < 0)
|
|
return log_oom();
|
|
|
|
break;
|
|
|
|
case 'A':
|
|
arg_action = ACTION_AUTOMOUNT;
|
|
break;
|
|
|
|
case ARG_AUTOMOUNT:
|
|
r = parse_boolean(optarg);
|
|
if (r < 0)
|
|
return log_error_errno(r, "--automount= expects a valid boolean parameter: %s", optarg);
|
|
|
|
arg_action = r ? ACTION_AUTOMOUNT : ACTION_MOUNT;
|
|
break;
|
|
|
|
case ARG_TIMEOUT_IDLE:
|
|
r = parse_sec(optarg, &arg_timeout_idle);
|
|
if (r < 0)
|
|
return log_error_errno(r, "Failed to parse timeout: %s", optarg);
|
|
|
|
break;
|
|
|
|
case ARG_AUTOMOUNT_PROPERTY:
|
|
if (strv_extend(&arg_automount_property, optarg) < 0)
|
|
return log_oom();
|
|
|
|
break;
|
|
|
|
case ARG_BIND_DEVICE:
|
|
arg_bind_device = true;
|
|
break;
|
|
|
|
case ARG_LIST:
|
|
arg_action = ACTION_LIST;
|
|
break;
|
|
|
|
case 'u':
|
|
arg_action = ACTION_UMOUNT;
|
|
break;
|
|
|
|
case '?':
|
|
return -EINVAL;
|
|
|
|
default:
|
|
assert_not_reached("Unhandled option");
|
|
}
|
|
|
|
if (arg_user && arg_transport != BUS_TRANSPORT_LOCAL) {
|
|
log_error("Execution in user context is not supported on non-local systems.");
|
|
return -EINVAL;
|
|
}
|
|
|
|
if (arg_action == ACTION_LIST) {
|
|
if (optind < argc) {
|
|
log_error("Too many arguments.");
|
|
return -EINVAL;
|
|
}
|
|
|
|
if (arg_transport != BUS_TRANSPORT_LOCAL) {
|
|
log_error("Listing devices only supported locally.");
|
|
return -EOPNOTSUPP;
|
|
}
|
|
} else {
|
|
if (optind >= argc) {
|
|
log_error("At least one argument required.");
|
|
return -EINVAL;
|
|
}
|
|
|
|
if (argc > optind+2) {
|
|
log_error("At most two arguments required.");
|
|
return -EINVAL;
|
|
}
|
|
|
|
arg_mount_what = fstab_node_to_udev_node(argv[optind]);
|
|
if (!arg_mount_what)
|
|
return log_oom();
|
|
|
|
if (argc > optind+1) {
|
|
r = path_make_absolute_cwd(argv[optind+1], &arg_mount_where);
|
|
if (r < 0)
|
|
return log_error_errno(r, "Failed to make path absolute: %m");
|
|
} else
|
|
arg_discover = true;
|
|
|
|
if (arg_discover && arg_transport != BUS_TRANSPORT_LOCAL) {
|
|
log_error("Automatic mount location discovery is only supported locally.");
|
|
return -EOPNOTSUPP;
|
|
}
|
|
}
|
|
|
|
return 1;
|
|
}
|
|
|
|
static int transient_unit_set_properties(sd_bus_message *m, char **properties) {
|
|
int r;
|
|
|
|
if (!isempty(arg_description)) {
|
|
r = sd_bus_message_append(m, "(sv)", "Description", "s", arg_description);
|
|
if (r < 0)
|
|
return r;
|
|
}
|
|
|
|
if (arg_bind_device && is_device_path(arg_mount_what)) {
|
|
_cleanup_free_ char *device_unit = NULL;
|
|
|
|
r = unit_name_from_path(arg_mount_what, ".device", &device_unit);
|
|
if (r < 0)
|
|
return r;
|
|
|
|
r = sd_bus_message_append(m, "(sv)(sv)",
|
|
"After", "as", 1, device_unit,
|
|
"BindsTo", "as", 1, device_unit);
|
|
if (r < 0)
|
|
return r;
|
|
}
|
|
|
|
r = bus_append_unit_property_assignment_many(m, properties);
|
|
if (r < 0)
|
|
return r;
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int transient_mount_set_properties(sd_bus_message *m) {
|
|
int r;
|
|
|
|
assert(m);
|
|
|
|
r = transient_unit_set_properties(m, arg_property);
|
|
if (r < 0)
|
|
return r;
|
|
|
|
if (arg_mount_what) {
|
|
r = sd_bus_message_append(m, "(sv)", "What", "s", arg_mount_what);
|
|
if (r < 0)
|
|
return r;
|
|
}
|
|
|
|
if (arg_mount_type) {
|
|
r = sd_bus_message_append(m, "(sv)", "Type", "s", arg_mount_type);
|
|
if (r < 0)
|
|
return r;
|
|
}
|
|
|
|
if (arg_mount_options) {
|
|
r = sd_bus_message_append(m, "(sv)", "Options", "s", arg_mount_options);
|
|
if (r < 0)
|
|
return r;
|
|
}
|
|
|
|
if (arg_fsck) {
|
|
_cleanup_free_ char *fsck = NULL;
|
|
|
|
r = unit_name_from_path_instance("systemd-fsck", arg_mount_what, ".service", &fsck);
|
|
if (r < 0)
|
|
return r;
|
|
|
|
r = sd_bus_message_append(m,
|
|
"(sv)(sv)",
|
|
"Requires", "as", 1, fsck,
|
|
"After", "as", 1, fsck);
|
|
if (r < 0)
|
|
return r;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int transient_automount_set_properties(sd_bus_message *m) {
|
|
int r;
|
|
|
|
assert(m);
|
|
|
|
r = transient_unit_set_properties(m, arg_automount_property);
|
|
if (r < 0)
|
|
return r;
|
|
|
|
if (arg_timeout_idle != USEC_INFINITY) {
|
|
r = sd_bus_message_append(m, "(sv)", "TimeoutIdleUSec", "t", arg_timeout_idle);
|
|
if (r < 0)
|
|
return r;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int start_transient_mount(
|
|
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 *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, ".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", mount_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_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 stop_mount(
|
|
sd_bus *bus,
|
|
char **argv,
|
|
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(arg_mount_where, suffix, &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",
|
|
"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(), arg_mount_where, ansi_normal());
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int stop_mounts(
|
|
sd_bus *bus,
|
|
char **argv) {
|
|
|
|
int r;
|
|
|
|
r = stop_mount(bus, argv + optind, ".mount");
|
|
if (r < 0)
|
|
return r;
|
|
|
|
r = stop_mount(bus, argv + optind, ".automount");
|
|
if (r < 0)
|
|
return r;
|
|
|
|
return 0;
|
|
}
|
|
|
|
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 (!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_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_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 (!arg_discover)
|
|
return 0;
|
|
|
|
if (!is_device_path(arg_mount_what)) {
|
|
log_error("Discovery only supported for block devices, don't know what to do.");
|
|
return -EINVAL;
|
|
}
|
|
|
|
if (stat(arg_mount_what, &st) < 0)
|
|
return log_error_errno(errno, "Can't stat %s: %m", arg_mount_what);
|
|
|
|
if (!S_ISBLK(st.st_mode)) {
|
|
log_error("Path %s is not a block device, don't know what to do.", arg_mount_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 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;
|
|
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 = 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;
|
|
}
|
|
|
|
path_kill_slashes(arg_mount_where);
|
|
|
|
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 is contains unsafe components.");
|
|
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 */
|
|
}
|
|
}
|
|
|
|
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;
|
|
}
|
|
|
|
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;
|
|
|
|
case ACTION_UMOUNT:
|
|
r = stop_mounts(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;
|
|
}
|