+++ /dev/null
-/***
- This file is part of elogind.
-
- Copyright 2016 Lennart Poettering
-
- elogind 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.
-
- elogind 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 elogind; 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_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"
- , 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' },
- { "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 },
- {},
- };
-
- int r, c;
-
- assert(argc >= 0);
- assert(argv);
-
- while ((c = getopt_long(argc, argv, "hqH:M:t:o:p:A", 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 '?':
- 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("elogind-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.elogind1",
- "/org/freedesktop/elogind1",
- "org.freedesktop.elogind1.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.elogind1",
- "/org/freedesktop/elogind1",
- "org.freedesktop.elogind1.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 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, NULL);
- } 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, NULL);
- 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_elogind(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;
-
- 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;
-}
~ianmdlvl / elogind.git / commitdiff