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Systemd/src/home/homectl.c

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/* SPDX-License-Identifier: LGPL-2.1+ */
#include <getopt.h>
#include "sd-bus.h"
#include "alloc-util.h"
#include "ask-password-api.h"
#include "bus-common-errors.h"
#include "bus-error.h"
#include "bus-util.h"
#include "cgroup-util.h"
#include "dns-domain.h"
#include "env-util.h"
#include "fd-util.h"
#include "fileio.h"
#include "format-table.h"
#include "format-util.h"
#include "fs-util.h"
#include "hexdecoct.h"
#include "home-util.h"
#include "libcrypt-util.h"
#include "locale-util.h"
#include "main-func.h"
#include "memory-util.h"
#include "openssl-util.h"
#include "pager.h"
#include "parse-util.h"
#include "path-util.h"
#include "pkcs11-util.h"
#include "pretty-print.h"
#include "process-util.h"
#include "pwquality-util.h"
#include "random-util.h"
#include "rlimit-util.h"
#include "spawn-polkit-agent.h"
#include "terminal-util.h"
#include "user-record-show.h"
#include "user-record-util.h"
#include "user-record.h"
#include "user-util.h"
#include "verbs.h"
static PagerFlags arg_pager_flags = 0;
static bool arg_legend = true;
static bool arg_ask_password = true;
static BusTransport arg_transport = BUS_TRANSPORT_LOCAL;
static const char *arg_host = NULL;
static const char *arg_identity = NULL;
static JsonVariant *arg_identity_extra = NULL;
static JsonVariant *arg_identity_extra_privileged = NULL;
static JsonVariant *arg_identity_extra_this_machine = NULL;
static JsonVariant *arg_identity_extra_rlimits = NULL;
static char **arg_identity_filter = NULL; /* this one is also applied to 'privileged' and 'thisMachine' subobjects */
static char **arg_identity_filter_rlimits = NULL;
static uint64_t arg_disk_size = UINT64_MAX;
static uint64_t arg_disk_size_relative = UINT64_MAX;
static char **arg_pkcs11_token_uri = NULL;
static bool arg_json = false;
static JsonFormatFlags arg_json_format_flags = 0;
static bool arg_and_resize = false;
static bool arg_and_change_password = false;
static enum {
EXPORT_FORMAT_FULL, /* export the full record */
EXPORT_FORMAT_STRIPPED, /* strip "state" + "binding", but leave signature in place */
EXPORT_FORMAT_MINIMAL, /* also strip signature */
} arg_export_format = EXPORT_FORMAT_FULL;
STATIC_DESTRUCTOR_REGISTER(arg_identity_extra, json_variant_unrefp);
STATIC_DESTRUCTOR_REGISTER(arg_identity_extra_this_machine, json_variant_unrefp);
STATIC_DESTRUCTOR_REGISTER(arg_identity_extra_privileged, json_variant_unrefp);
STATIC_DESTRUCTOR_REGISTER(arg_identity_extra_rlimits, json_variant_unrefp);
STATIC_DESTRUCTOR_REGISTER(arg_identity_filter, strv_freep);
STATIC_DESTRUCTOR_REGISTER(arg_identity_filter_rlimits, strv_freep);
STATIC_DESTRUCTOR_REGISTER(arg_pkcs11_token_uri, strv_freep);
static bool identity_properties_specified(void) {
return
arg_identity ||
!json_variant_is_blank_object(arg_identity_extra) ||
!json_variant_is_blank_object(arg_identity_extra_privileged) ||
!json_variant_is_blank_object(arg_identity_extra_this_machine) ||
!json_variant_is_blank_object(arg_identity_extra_rlimits) ||
!strv_isempty(arg_identity_filter) ||
!strv_isempty(arg_identity_filter_rlimits) ||
!strv_isempty(arg_pkcs11_token_uri);
}
static int acquire_bus(sd_bus **bus) {
int r;
assert(bus);
if (*bus)
return 0;
r = bus_connect_transport(arg_transport, arg_host, false, bus);
if (r < 0)
return log_error_errno(r, "Failed to connect to bus: %m");
(void) sd_bus_set_allow_interactive_authorization(*bus, arg_ask_password);
return 0;
}
static int list_homes(int argc, char *argv[], void *userdata) {
_cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL;
_cleanup_(sd_bus_message_unrefp) sd_bus_message *reply = NULL;
_cleanup_(sd_bus_flush_close_unrefp) sd_bus *bus = NULL;
_cleanup_(table_unrefp) Table *table = NULL;
int r;
(void) pager_open(arg_pager_flags);
r = acquire_bus(&bus);
if (r < 0)
return r;
r = bus_call_method(bus, bus_home_mgr, "ListHomes", &error, &reply, NULL);
if (r < 0)
return log_error_errno(r, "Failed to list homes: %s", bus_error_message(&error, r));
table = table_new("name", "uid", "gid", "state", "realname", "home", "shell");
if (!table)
return log_oom();
r = sd_bus_message_enter_container(reply, 'a', "(susussso)");
if (r < 0)
return bus_log_parse_error(r);
for (;;) {
const char *name, *state, *realname, *home, *shell, *color;
TableCell *cell;
uint32_t uid, gid;
r = sd_bus_message_read(reply, "(susussso)", &name, &uid, &state, &gid, &realname, &home, &shell, NULL);
if (r < 0)
return bus_log_parse_error(r);
if (r == 0)
break;
r = table_add_many(table,
TABLE_STRING, name,
TABLE_UID, uid,
TABLE_GID, gid);
if (r < 0)
return log_error_errno(r, "Failed to add row to table: %m");
r = table_add_cell(table, &cell, TABLE_STRING, state);
if (r < 0)
return log_error_errno(r, "Failed to add field to table: %m");
color = user_record_state_color(state);
if (color)
(void) table_set_color(table, cell, color);
r = table_add_many(table,
TABLE_STRING, strna(empty_to_null(realname)),
TABLE_STRING, home,
TABLE_STRING, strna(empty_to_null(shell)));
if (r < 0)
return log_error_errno(r, "Failed to add row to table: %m");
}
r = sd_bus_message_exit_container(reply);
if (r < 0)
return bus_log_parse_error(r);
if (table_get_rows(table) > 1 || arg_json) {
r = table_set_sort(table, (size_t) 0, (size_t) -1);
if (r < 0)
return log_error_errno(r, "Failed to sort table: %m");
table_set_header(table, arg_legend);
if (arg_json)
r = table_print_json(table, stdout, arg_json_format_flags);
else
r = table_print(table, NULL);
if (r < 0)
return log_error_errno(r, "Failed to show table: %m");
}
if (arg_legend && !arg_json) {
if (table_get_rows(table) > 1)
printf("\n%zu home areas listed.\n", table_get_rows(table) - 1);
else
printf("No home areas.\n");
}
return 0;
}
static int acquire_existing_password(const char *user_name, UserRecord *hr, bool emphasize_current) {
_cleanup_(strv_free_erasep) char **password = NULL;
_cleanup_free_ char *question = NULL;
char *e;
int r;
assert(user_name);
assert(hr);
e = getenv("PASSWORD");
if (e) {
/* People really shouldn't use environment variables for passing passwords. We support this
* only for testing purposes, and do not document the behaviour, so that people won't
* actually use this outside of testing. */
r = user_record_set_password(hr, STRV_MAKE(e), true);
if (r < 0)
return log_error_errno(r, "Failed to store password: %m");
string_erase(e);
if (unsetenv("PASSWORD") < 0)
return log_error_errno(errno, "Failed to unset $PASSWORD: %m");
return 0;
}
if (asprintf(&question, emphasize_current ?
"Please enter current password for user %s:" :
"Please enter password for user %s:",
user_name) < 0)
return log_oom();
r = ask_password_auto(question, "user-home", NULL, "home-password", USEC_INFINITY, ASK_PASSWORD_ACCEPT_CACHED|ASK_PASSWORD_PUSH_CACHE, &password);
if (r < 0)
return log_error_errno(r, "Failed to acquire password: %m");
r = user_record_set_password(hr, password, true);
if (r < 0)
return log_error_errno(r, "Failed to store password: %m");
return 0;
}
static int acquire_pkcs11_pin(const char *user_name, UserRecord *hr) {
_cleanup_(strv_free_erasep) char **pin = NULL;
_cleanup_free_ char *question = NULL;
char *e;
int r;
assert(user_name);
assert(hr);
e = getenv("PIN");
if (e) {
r = user_record_set_pkcs11_pin(hr, STRV_MAKE(e), false);
if (r < 0)
return log_error_errno(r, "Failed to store PKCS#11 PIN: %m");
string_erase(e);
if (unsetenv("PIN") < 0)
return log_error_errno(errno, "Failed to unset $PIN: %m");
return 0;
}
if (asprintf(&question, "Please enter security token PIN for user %s:", user_name) < 0)
return log_oom();
/* We never cache or use cached PINs, since usually there are only very few attempts allowed before the PIN is blocked */
r = ask_password_auto(question, "user-home", NULL, "pkcs11-pin", USEC_INFINITY, 0, &pin);
if (r < 0)
return log_error_errno(r, "Failed to acquire security token PIN: %m");
r = user_record_set_pkcs11_pin(hr, pin, false);
if (r < 0)
return log_error_errno(r, "Failed to store security token PIN: %m");
return 0;
}
static int handle_generic_user_record_error(
const char *user_name,
UserRecord *hr,
const sd_bus_error *error,
int ret,
bool emphasize_current_password) {
int r;
assert(user_name);
assert(hr);
if (sd_bus_error_has_name(error, BUS_ERROR_HOME_ABSENT))
return log_error_errno(SYNTHETIC_ERRNO(EREMOTE),
"Home of user %s is currently absent, please plug in the necessary storage device or backing file system.", user_name);
else if (sd_bus_error_has_name(error, BUS_ERROR_AUTHENTICATION_LIMIT_HIT))
return log_error_errno(SYNTHETIC_ERRNO(ETOOMANYREFS),
"Too frequent unsuccessful login attempts for user %s, try again later.", user_name);
else if (sd_bus_error_has_name(error, BUS_ERROR_BAD_PASSWORD)) {
if (!strv_isempty(hr->password))
log_notice("Password incorrect or not sufficient, please try again.");
r = acquire_existing_password(user_name, hr, emphasize_current_password);
if (r < 0)
return r;
} else if (sd_bus_error_has_name(error, BUS_ERROR_BAD_PASSWORD_AND_NO_TOKEN)) {
if (strv_isempty(hr->password))
log_notice("Security token not inserted, please enter password.");
else
log_notice("Password incorrect or not sufficient, and configured security token not inserted, please try again.");
r = acquire_existing_password(user_name, hr, emphasize_current_password);
if (r < 0)
return r;
} else if (sd_bus_error_has_name(error, BUS_ERROR_TOKEN_PIN_NEEDED)) {
r = acquire_pkcs11_pin(user_name, hr);
if (r < 0)
return r;
} else if (sd_bus_error_has_name(error, BUS_ERROR_TOKEN_PROTECTED_AUTHENTICATION_PATH_NEEDED)) {
log_notice("Please authenticate physically on security token.");
r = user_record_set_pkcs11_protected_authentication_path_permitted(hr, true);
if (r < 0)
return log_error_errno(r, "Failed to set PKCS#11 protected authentication path permitted flag: %m");
} else if (sd_bus_error_has_name(error, BUS_ERROR_TOKEN_PIN_LOCKED))
return log_error_errno(SYNTHETIC_ERRNO(EPERM), "Security token PIN is locked, please unlock security token PIN first.");
else if (sd_bus_error_has_name(error, BUS_ERROR_TOKEN_BAD_PIN)) {
log_notice("Security token PIN incorrect, please try again.");
r = acquire_pkcs11_pin(user_name, hr);
if (r < 0)
return r;
} else if (sd_bus_error_has_name(error, BUS_ERROR_TOKEN_BAD_PIN_FEW_TRIES_LEFT)) {
log_notice("Security token PIN incorrect, please try again (only a few tries left!).");
r = acquire_pkcs11_pin(user_name, hr);
if (r < 0)
return r;
} else if (sd_bus_error_has_name(error, BUS_ERROR_TOKEN_BAD_PIN_ONE_TRY_LEFT)) {
log_notice("Security token PIN incorrect, please try again (only one try left!).");
r = acquire_pkcs11_pin(user_name, hr);
if (r < 0)
return r;
} else
return log_error_errno(ret, "Operation on home %s failed: %s", user_name, bus_error_message(error, ret));
return 0;
}
static int activate_home(int argc, char *argv[], void *userdata) {
_cleanup_(sd_bus_flush_close_unrefp) sd_bus *bus = NULL;
int r, ret = 0;
char **i;
r = acquire_bus(&bus);
if (r < 0)
return r;
STRV_FOREACH(i, strv_skip(argv, 1)) {
_cleanup_(user_record_unrefp) UserRecord *secret = NULL;
secret = user_record_new();
if (!secret)
return log_oom();
for (;;) {
_cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL;
_cleanup_(sd_bus_message_unrefp) sd_bus_message *m = NULL;
r = bus_message_new_method_call(bus, &m, bus_home_mgr, "ActivateHome");
if (r < 0)
return bus_log_create_error(r);
r = sd_bus_message_append(m, "s", *i);
if (r < 0)
return bus_log_create_error(r);
r = bus_message_append_secret(m, secret);
if (r < 0)
return bus_log_create_error(r);
r = sd_bus_call(bus, m, HOME_SLOW_BUS_CALL_TIMEOUT_USEC, &error, NULL);
if (r < 0) {
r = handle_generic_user_record_error(*i, secret, &error, r, false);
if (r < 0) {
if (ret == 0)
ret = r;
break;
}
} else
break;
}
}
return ret;
}
static int deactivate_home(int argc, char *argv[], void *userdata) {
_cleanup_(sd_bus_flush_close_unrefp) sd_bus *bus = NULL;
int r, ret = 0;
char **i;
r = acquire_bus(&bus);
if (r < 0)
return r;
STRV_FOREACH(i, strv_skip(argv, 1)) {
_cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL;
_cleanup_(sd_bus_message_unrefp) sd_bus_message *m = NULL;
r = bus_message_new_method_call(bus, &m, bus_home_mgr, "DeactivateHome");
if (r < 0)
return bus_log_create_error(r);
r = sd_bus_message_append(m, "s", *i);
if (r < 0)
return bus_log_create_error(r);
r = sd_bus_call(bus, m, HOME_SLOW_BUS_CALL_TIMEOUT_USEC, &error, NULL);
if (r < 0) {
log_error_errno(r, "Failed to deactivate user home: %s", bus_error_message(&error, r));
if (ret == 0)
ret = r;
}
}
return ret;
}
static void dump_home_record(UserRecord *hr) {
int r;
assert(hr);
if (hr->incomplete) {
fflush(stdout);
log_warning("Warning: lacking rights to acquire privileged fields of user record of '%s', output incomplete.", hr->user_name);
}
if (arg_json) {
_cleanup_(user_record_unrefp) UserRecord *stripped = NULL;
if (arg_export_format == EXPORT_FORMAT_STRIPPED)
r = user_record_clone(hr, USER_RECORD_EXTRACT_EMBEDDED, &stripped);
else if (arg_export_format == EXPORT_FORMAT_MINIMAL)
r = user_record_clone(hr, USER_RECORD_EXTRACT_SIGNABLE, &stripped);
else
r = 0;
if (r < 0)
log_warning_errno(r, "Failed to strip user record, ignoring: %m");
if (stripped)
hr = stripped;
json_variant_dump(hr->json, arg_json_format_flags, stdout, NULL);
} else
user_record_show(hr, true);
}
static char **mangle_user_list(char **list, char ***ret_allocated) {
_cleanup_free_ char *myself = NULL;
char **l;
if (!strv_isempty(list)) {
*ret_allocated = NULL;
return list;
}
myself = getusername_malloc();
if (!myself)
return NULL;
l = new(char*, 2);
if (!l)
return NULL;
l[0] = TAKE_PTR(myself);
l[1] = NULL;
*ret_allocated = l;
return l;
}
static int inspect_home(int argc, char *argv[], void *userdata) {
_cleanup_(sd_bus_flush_close_unrefp) sd_bus *bus = NULL;
_cleanup_(strv_freep) char **mangled_list = NULL;
int r, ret = 0;
char **items, **i;
(void) pager_open(arg_pager_flags);
r = acquire_bus(&bus);
if (r < 0)
return r;
items = mangle_user_list(strv_skip(argv, 1), &mangled_list);
if (!items)
return log_oom();
STRV_FOREACH(i, items) {
_cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL;
_cleanup_(sd_bus_message_unrefp) sd_bus_message *reply = NULL;
_cleanup_(json_variant_unrefp) JsonVariant *v = NULL;
_cleanup_(user_record_unrefp) UserRecord *hr = NULL;
const char *json;
int incomplete;
uid_t uid;
r = parse_uid(*i, &uid);
if (r < 0) {
if (!valid_user_group_name(*i, 0)) {
log_error("Invalid user name '%s'.", *i);
if (ret == 0)
ret = -EINVAL;
continue;
}
r = bus_call_method(bus, bus_home_mgr, "GetUserRecordByName", &error, &reply, "s", *i);
} else
r = bus_call_method(bus, bus_home_mgr, "GetUserRecordByUID", &error, &reply, "u", (uint32_t) uid);
if (r < 0) {
log_error_errno(r, "Failed to inspect home: %s", bus_error_message(&error, r));
if (ret == 0)
ret = r;
continue;
}
r = sd_bus_message_read(reply, "sbo", &json, &incomplete, NULL);
if (r < 0) {
bus_log_parse_error(r);
if (ret == 0)
ret = r;
continue;
}
r = json_parse(json, JSON_PARSE_SENSITIVE, &v, NULL, NULL);
if (r < 0) {
log_error_errno(r, "Failed to parse JSON identity: %m");
if (ret == 0)
ret = r;
continue;
}
hr = user_record_new();
if (!hr)
return log_oom();
r = user_record_load(hr, v, USER_RECORD_LOAD_REFUSE_SECRET|USER_RECORD_LOG);
if (r < 0) {
if (ret == 0)
ret = r;
continue;
}
hr->incomplete = incomplete;
dump_home_record(hr);
}
return ret;
}
static int authenticate_home(int argc, char *argv[], void *userdata) {
_cleanup_(sd_bus_flush_close_unrefp) sd_bus *bus = NULL;
_cleanup_(strv_freep) char **mangled_list = NULL;
int r, ret = 0;
char **i, **items;
items = mangle_user_list(strv_skip(argv, 1), &mangled_list);
if (!items)
return log_oom();
r = acquire_bus(&bus);
if (r < 0)
return r;
(void) polkit_agent_open_if_enabled(arg_transport, arg_ask_password);
STRV_FOREACH(i, items) {
_cleanup_(user_record_unrefp) UserRecord *secret = NULL;
secret = user_record_new();
if (!secret)
return log_oom();
for (;;) {
_cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL;
_cleanup_(sd_bus_message_unrefp) sd_bus_message *m = NULL;
r = bus_message_new_method_call(bus, &m, bus_home_mgr, "AuthenticateHome");
if (r < 0)
return bus_log_create_error(r);
r = sd_bus_message_append(m, "s", *i);
if (r < 0)
return bus_log_create_error(r);
r = bus_message_append_secret(m, secret);
if (r < 0)
return bus_log_create_error(r);
r = sd_bus_call(bus, m, HOME_SLOW_BUS_CALL_TIMEOUT_USEC, &error, NULL);
if (r < 0) {
r = handle_generic_user_record_error(*i, secret, &error, r, false);
if (r < 0) {
if (ret == 0)
ret = r;
break;
}
} else
break;
}
}
return ret;
}
static int update_last_change(JsonVariant **v, bool with_password, bool override) {
JsonVariant *c;
usec_t n;
int r;
assert(v);
n = now(CLOCK_REALTIME);
c = json_variant_by_key(*v, "lastChangeUSec");
if (c) {
uintmax_t u;
if (!override)
goto update_password;
if (!json_variant_is_unsigned(c))
return log_error_errno(SYNTHETIC_ERRNO(EINVAL), "lastChangeUSec field is not an unsigned integer, refusing.");
u = json_variant_unsigned(c);
if (u >= n)
return log_error_errno(SYNTHETIC_ERRNO(EINVAL), "lastChangeUSec is from the future, can't update.");
}
r = json_variant_set_field_unsigned(v, "lastChangeUSec", n);
if (r < 0)
return log_error_errno(r, "Failed to update lastChangeUSec: %m");
update_password:
if (!with_password)
return 0;
c = json_variant_by_key(*v, "lastPasswordChangeUSec");
if (c) {
uintmax_t u;
if (!override)
return 0;
if (!json_variant_is_unsigned(c))
return log_error_errno(SYNTHETIC_ERRNO(EINVAL), "lastPasswordChangeUSec field is not an unsigned integer, refusing.");
u = json_variant_unsigned(c);
if (u >= n)
return log_error_errno(SYNTHETIC_ERRNO(EINVAL), "lastPasswordChangeUSec is from the future, can't update.");
}
r = json_variant_set_field_unsigned(v, "lastPasswordChangeUSec", n);
if (r < 0)
return log_error_errno(r, "Failed to update lastPasswordChangeUSec: %m");
return 1;
}
static int apply_identity_changes(JsonVariant **_v) {
_cleanup_(json_variant_unrefp) JsonVariant *v = NULL;
int r;
assert(_v);
v = json_variant_ref(*_v);
r = json_variant_filter(&v, arg_identity_filter);
if (r < 0)
return log_error_errno(r, "Failed to filter identity: %m");
r = json_variant_merge(&v, arg_identity_extra);
if (r < 0)
return log_error_errno(r, "Failed to merge identities: %m");
if (arg_identity_extra_this_machine || !strv_isempty(arg_identity_filter)) {
_cleanup_(json_variant_unrefp) JsonVariant *per_machine = NULL, *mmid = NULL;
char mids[SD_ID128_STRING_MAX];
sd_id128_t mid;
r = sd_id128_get_machine(&mid);
if (r < 0)
return log_error_errno(r, "Failed to acquire machine ID: %m");
r = json_variant_new_string(&mmid, sd_id128_to_string(mid, mids));
if (r < 0)
return log_error_errno(r, "Failed to allocate matchMachineId object: %m");
per_machine = json_variant_ref(json_variant_by_key(v, "perMachine"));
if (per_machine) {
_cleanup_(json_variant_unrefp) JsonVariant *npm = NULL, *add = NULL;
_cleanup_free_ JsonVariant **array = NULL;
JsonVariant *z;
size_t i = 0;
if (!json_variant_is_array(per_machine))
return log_error_errno(SYNTHETIC_ERRNO(EINVAL), "perMachine field is not an array, refusing.");
array = new(JsonVariant*, json_variant_elements(per_machine) + 1);
if (!array)
return log_oom();
JSON_VARIANT_ARRAY_FOREACH(z, per_machine) {
JsonVariant *u;
if (!json_variant_is_object(z))
return log_error_errno(SYNTHETIC_ERRNO(EINVAL), "perMachine entry is not an object, refusing.");
array[i++] = z;
u = json_variant_by_key(z, "matchMachineId");
if (!u)
continue;
if (!json_variant_equal(u, mmid))
continue;
r = json_variant_merge(&add, z);
if (r < 0)
return log_error_errno(r, "Failed to merge perMachine entry: %m");
i--;
}
r = json_variant_filter(&add, arg_identity_filter);
if (r < 0)
return log_error_errno(r, "Failed to filter perMachine: %m");
r = json_variant_merge(&add, arg_identity_extra_this_machine);
if (r < 0)
return log_error_errno(r, "Failed to merge in perMachine fields: %m");
if (arg_identity_filter_rlimits || arg_identity_extra_rlimits) {
_cleanup_(json_variant_unrefp) JsonVariant *rlv = NULL;
rlv = json_variant_ref(json_variant_by_key(add, "resourceLimits"));
r = json_variant_filter(&rlv, arg_identity_filter_rlimits);
if (r < 0)
return log_error_errno(r, "Failed to filter resource limits: %m");
r = json_variant_merge(&rlv, arg_identity_extra_rlimits);
if (r < 0)
return log_error_errno(r, "Failed to set resource limits: %m");
if (json_variant_is_blank_object(rlv)) {
r = json_variant_filter(&add, STRV_MAKE("resourceLimits"));
if (r < 0)
return log_error_errno(r, "Failed to drop resource limits field from identity: %m");
} else {
r = json_variant_set_field(&add, "resourceLimits", rlv);
if (r < 0)
return log_error_errno(r, "Failed to update resource limits of identity: %m");
}
}
if (!json_variant_is_blank_object(add)) {
r = json_variant_set_field(&add, "matchMachineId", mmid);
if (r < 0)
return log_error_errno(r, "Failed to set matchMachineId field: %m");
array[i++] = add;
}
r = json_variant_new_array(&npm, array, i);
if (r < 0)
return log_error_errno(r, "Failed to allocate new perMachine array: %m");
json_variant_unref(per_machine);
per_machine = TAKE_PTR(npm);
} else {
_cleanup_(json_variant_unrefp) JsonVariant *item = json_variant_ref(arg_identity_extra_this_machine);
if (arg_identity_extra_rlimits) {
r = json_variant_set_field(&item, "resourceLimits", arg_identity_extra_rlimits);
if (r < 0)
return log_error_errno(r, "Failed to update resource limits of identity: %m");
}
r = json_variant_set_field(&item, "matchMachineId", mmid);
if (r < 0)
return log_error_errno(r, "Failed to set matchMachineId field: %m");
r = json_variant_append_array(&per_machine, item);
if (r < 0)
return log_error_errno(r, "Failed to append to perMachine array: %m");
}
r = json_variant_set_field(&v, "perMachine", per_machine);
if (r < 0)
return log_error_errno(r, "Failed to update per machine record: %m");
}
if (arg_identity_extra_privileged || arg_identity_filter) {
_cleanup_(json_variant_unrefp) JsonVariant *privileged = NULL;
privileged = json_variant_ref(json_variant_by_key(v, "privileged"));
r = json_variant_filter(&privileged, arg_identity_filter);
if (r < 0)
return log_error_errno(r, "Failed to filter identity (privileged part): %m");
r = json_variant_merge(&privileged, arg_identity_extra_privileged);
if (r < 0)
return log_error_errno(r, "Failed to merge identities (privileged part): %m");
if (json_variant_is_blank_object(privileged)) {
r = json_variant_filter(&v, STRV_MAKE("privileged"));
if (r < 0)
return log_error_errno(r, "Failed to drop privileged part from identity: %m");
} else {
r = json_variant_set_field(&v, "privileged", privileged);
if (r < 0)
return log_error_errno(r, "Failed to update privileged part of identity: %m");
}
}
if (arg_identity_filter_rlimits) {
_cleanup_(json_variant_unrefp) JsonVariant *rlv = NULL;
rlv = json_variant_ref(json_variant_by_key(v, "resourceLimits"));
r = json_variant_filter(&rlv, arg_identity_filter_rlimits);
if (r < 0)
return log_error_errno(r, "Failed to filter resource limits: %m");
/* Note that we only filter resource limits here, but don't apply them. We do that in the perMachine section */
if (json_variant_is_blank_object(rlv)) {
r = json_variant_filter(&v, STRV_MAKE("resourceLimits"));
if (r < 0)
return log_error_errno(r, "Failed to drop resource limits field from identity: %m");
} else {
r = json_variant_set_field(&v, "resourceLimits", rlv);
if (r < 0)
return log_error_errno(r, "Failed to update resource limits of identity: %m");
}
}
json_variant_unref(*_v);
*_v = TAKE_PTR(v);
return 0;
}
static int add_disposition(JsonVariant **v) {
int r;
assert(v);
if (json_variant_by_key(*v, "disposition"))
return 0;
/* Set the disposition to regular, if not configured explicitly */
r = json_variant_set_field_string(v, "disposition", "regular");
if (r < 0)
return log_error_errno(r, "Failed to set disposition field: %m");
return 1;
}
struct pkcs11_callback_data {
char *pin_used;
X509 *cert;
};
static void pkcs11_callback_data_release(struct pkcs11_callback_data *data) {
erase_and_free(data->pin_used);
X509_free(data->cert);
}
#if HAVE_P11KIT
static int pkcs11_callback(
CK_FUNCTION_LIST *m,
CK_SESSION_HANDLE session,
CK_SLOT_ID slot_id,
const CK_SLOT_INFO *slot_info,
const CK_TOKEN_INFO *token_info,
P11KitUri *uri,
void *userdata) {
_cleanup_(erase_and_freep) char *pin_used = NULL;
struct pkcs11_callback_data *data = userdata;
CK_OBJECT_HANDLE object;
int r;
assert(m);
assert(slot_info);
assert(token_info);
assert(uri);
assert(data);
/* Called for every token matching our URI */
r = pkcs11_token_login(m, session, slot_id, token_info, "home directory operation", "user-home", "pkcs11-pin", UINT64_MAX, &pin_used);
if (r < 0)
return r;
r = pkcs11_token_find_x509_certificate(m, session, uri, &object);
if (r < 0)
return r;
r = pkcs11_token_read_x509_certificate(m, session, object, &data->cert);
if (r < 0)
return r;
/* Let's read some random data off the token and write it to the kernel pool before we generate our
* random key from it. This way we can claim the quality of the RNG is at least as good as the
* kernel's and the token's pool */
(void) pkcs11_token_acquire_rng(m, session);
data->pin_used = TAKE_PTR(pin_used);
return 1;
}
#endif
static int acquire_pkcs11_certificate(
const char *uri,
X509 **ret_cert,
char **ret_pin_used) {
#if HAVE_P11KIT
_cleanup_(pkcs11_callback_data_release) struct pkcs11_callback_data data = {};
int r;
r = pkcs11_find_token(uri, pkcs11_callback, &data);
if (r == -EAGAIN) /* pkcs11_find_token() doesn't log about this error, but all others */
return log_error_errno(ENXIO, "Specified PKCS#11 token with URI '%s' not found.", uri);
if (r < 0)
return r;
*ret_cert = TAKE_PTR(data.cert);
*ret_pin_used = TAKE_PTR(data.pin_used);
return 0;
#else
return log_error_errno(EOPNOTSUPP, "PKCS#11 tokens not supported on this build.");
#endif
}
static int encrypt_bytes(
EVP_PKEY *pkey,
const void *decrypted_key,
size_t decrypted_key_size,
void **ret_encrypt_key,
size_t *ret_encrypt_key_size) {
_cleanup_(EVP_PKEY_CTX_freep) EVP_PKEY_CTX *ctx = NULL;
_cleanup_free_ void *b = NULL;
size_t l;
ctx = EVP_PKEY_CTX_new(pkey, NULL);
if (!ctx)
return log_error_errno(SYNTHETIC_ERRNO(EIO), "Failed to allocate public key context");
if (EVP_PKEY_encrypt_init(ctx) <= 0)
return log_error_errno(SYNTHETIC_ERRNO(EIO), "Failed to initialize public key context");
if (EVP_PKEY_CTX_set_rsa_padding(ctx, RSA_PKCS1_PADDING) <= 0)
return log_error_errno(SYNTHETIC_ERRNO(EIO), "Failed to configure PKCS#1 padding");
if (EVP_PKEY_encrypt(ctx, NULL, &l, decrypted_key, decrypted_key_size) <= 0)
return log_error_errno(SYNTHETIC_ERRNO(EIO), "Failed to determine encrypted key size");
b = malloc(l);
if (!b)
return log_oom();
if (EVP_PKEY_encrypt(ctx, b, &l, decrypted_key, decrypted_key_size) <= 0)
return log_error_errno(SYNTHETIC_ERRNO(EIO), "Failed to determine encrypted key size");
*ret_encrypt_key = TAKE_PTR(b);
*ret_encrypt_key_size = l;
return 0;
}
static int add_pkcs11_pin(JsonVariant **v, const char *pin) {
_cleanup_(json_variant_unrefp) JsonVariant *w = NULL, *l = NULL;
_cleanup_(strv_free_erasep) char **pins = NULL;
int r;
assert(v);
if (isempty(pin))
return 0;
w = json_variant_ref(json_variant_by_key(*v, "secret"));
l = json_variant_ref(json_variant_by_key(w, "pkcs11Pin"));
r = json_variant_strv(l, &pins);
if (r < 0)
return log_error_errno(r, "Failed to convert PIN array: %m");
if (strv_find(pins, pin))
return 0;
r = strv_extend(&pins, pin);
if (r < 0)
return log_oom();
strv_uniq(pins);
l = json_variant_unref(l);
r = json_variant_new_array_strv(&l, pins);
if (r < 0)
return log_error_errno(r, "Failed to allocate new PIN array JSON: %m");
json_variant_sensitive(l);
r = json_variant_set_field(&w, "pkcs11Pin", l);
if (r < 0)
return log_error_errno(r, "Failed to update PIN field: %m");
r = json_variant_set_field(v, "secret", w);
if (r < 0)
return log_error_errno(r, "Failed to update secret object: %m");
return 1;
}
static int add_pkcs11_encrypted_key(
JsonVariant **v,
const char *uri,
const void *encrypted_key, size_t encrypted_key_size,
const void *decrypted_key, size_t decrypted_key_size) {
_cleanup_(json_variant_unrefp) JsonVariant *l = NULL, *w = NULL, *e = NULL;
_cleanup_(erase_and_freep) char *base64_encoded = NULL;
_cleanup_free_ char *salt = NULL;
struct crypt_data cd = {};
char *k;
int r;
assert(v);
assert(uri);
assert(encrypted_key);
assert(encrypted_key_size > 0);
assert(decrypted_key);
assert(decrypted_key_size > 0);
r = make_salt(&salt);
if (r < 0)
return log_error_errno(r, "Failed to generate salt: %m");
/* Before using UNIX hashing on the supplied key we base64 encode it, since crypt_r() and friends
* expect a NUL terminated string, and we use a binary key */
r = base64mem(decrypted_key, decrypted_key_size, &base64_encoded);
if (r < 0)
return log_error_errno(r, "Failed to base64 encode secret key: %m");
errno = 0;
k = crypt_r(base64_encoded, salt, &cd);
if (!k)
return log_error_errno(errno_or_else(EINVAL), "Failed to UNIX hash secret key: %m");
r = json_build(&e, JSON_BUILD_OBJECT(
JSON_BUILD_PAIR("uri", JSON_BUILD_STRING(uri)),
JSON_BUILD_PAIR("data", JSON_BUILD_BASE64(encrypted_key, encrypted_key_size)),
JSON_BUILD_PAIR("hashedPassword", JSON_BUILD_STRING(k))));
if (r < 0)
return log_error_errno(r, "Failed to build encrypted JSON key object: %m");
w = json_variant_ref(json_variant_by_key(*v, "privileged"));
l = json_variant_ref(json_variant_by_key(w, "pkcs11EncryptedKey"));
r = json_variant_append_array(&l, e);
if (r < 0)
return log_error_errno(r, "Failed append PKCS#11 encrypted key: %m");
r = json_variant_set_field(&w, "pkcs11EncryptedKey", l);
if (r < 0)
return log_error_errno(r, "Failed to set PKCS#11 encrypted key: %m");
r = json_variant_set_field(v, "privileged", w);
if (r < 0)
return log_error_errno(r, "Failed to update privileged field: %m");
return 0;
}
static int add_pkcs11_token_uri(JsonVariant **v, const char *uri) {
_cleanup_(json_variant_unrefp) JsonVariant *w = NULL;
_cleanup_strv_free_ char **l = NULL;
int r;
assert(v);
assert(uri);
w = json_variant_ref(json_variant_by_key(*v, "pkcs11TokenUri"));
if (w) {
r = json_variant_strv(w, &l);
if (r < 0)
return log_error_errno(r, "Failed to parse PKCS#11 token list: %m");
if (strv_contains(l, uri))
return 0;
}
r = strv_extend(&l, uri);
if (r < 0)
return log_oom();
w = json_variant_unref(w);
r = json_variant_new_array_strv(&w, l);
if (r < 0)
return log_error_errno(r, "Failed to create PKCS#11 token URI JSON: %m");
r = json_variant_set_field(v, "pkcs11TokenUri", w);
if (r < 0)
return log_error_errno(r, "Failed to update PKCS#11 token URI list: %m");
return 0;
}
static int add_pkcs11_key_data(JsonVariant **v, const char *uri) {
_cleanup_(erase_and_freep) void *decrypted_key = NULL, *encrypted_key = NULL;
_cleanup_(erase_and_freep) char *pin = NULL;
size_t decrypted_key_size, encrypted_key_size;
_cleanup_(X509_freep) X509 *cert = NULL;
EVP_PKEY *pkey;
RSA *rsa;
int bits;
int r;
assert(v);
r = acquire_pkcs11_certificate(uri, &cert, &pin);
if (r < 0)
return r;
pkey = X509_get0_pubkey(cert);
if (!pkey)
return log_error_errno(SYNTHETIC_ERRNO(EIO), "Failed to extract public key from X.509 certificate.");
if (EVP_PKEY_base_id(pkey) != EVP_PKEY_RSA)
return log_error_errno(SYNTHETIC_ERRNO(EBADMSG), "X.509 certificate does not refer to RSA key.");
rsa = EVP_PKEY_get0_RSA(pkey);
if (!rsa)
return log_error_errno(SYNTHETIC_ERRNO(EIO), "Failed to acquire RSA public key from X.509 certificate.");
bits = RSA_bits(rsa);
log_debug("Bits in RSA key: %i", bits);
/* We use PKCS#1 padding for the RSA cleartext, hence let's leave some extra space for it, hence only
* generate a random key half the size of the RSA length */
decrypted_key_size = bits / 8 / 2;
if (decrypted_key_size < 1)
return log_error_errno(SYNTHETIC_ERRNO(EIO), "Uh, RSA key size too short?");
log_debug("Generating %zu bytes random key.", decrypted_key_size);
decrypted_key = malloc(decrypted_key_size);
if (!decrypted_key)
return log_oom();
r = genuine_random_bytes(decrypted_key, decrypted_key_size, RANDOM_BLOCK);
if (r < 0)
return log_error_errno(r, "Failed to generate random key: %m");
r = encrypt_bytes(pkey, decrypted_key, decrypted_key_size, &encrypted_key, &encrypted_key_size);
if (r < 0)
return log_error_errno(r, "Failed to encrypt key: %m");
/* Add the token URI to the public part of the record. */
r = add_pkcs11_token_uri(v, uri);
if (r < 0)
return r;
/* Include the encrypted version of the random key we just generated in the privileged part of the record */
r = add_pkcs11_encrypted_key(
v,
uri,
encrypted_key, encrypted_key_size,
decrypted_key, decrypted_key_size);
if (r < 0)
return r;
/* If we acquired the PIN also include it in the secret section of the record, so that systemd-homed
* can use it if it needs to, given that it likely needs to decrypt the key again to pass to LUKS or
* fscrypt. */
r = add_pkcs11_pin(v, pin);
if (r < 0)
return r;
return 0;
}
static int acquire_new_home_record(UserRecord **ret) {
_cleanup_(json_variant_unrefp) JsonVariant *v = NULL;
_cleanup_(user_record_unrefp) UserRecord *hr = NULL;
char **i;
int r;
assert(ret);
if (arg_identity) {
unsigned line, column;
r = json_parse_file(
streq(arg_identity, "-") ? stdin : NULL,
streq(arg_identity, "-") ? "<stdin>" : arg_identity, JSON_PARSE_SENSITIVE, &v, &line, &column);
if (r < 0)
return log_error_errno(r, "Failed to parse identity at %u:%u: %m", line, column);
}
r = apply_identity_changes(&v);
if (r < 0)
return r;
r = add_disposition(&v);
if (r < 0)
return r;
STRV_FOREACH(i, arg_pkcs11_token_uri) {
r = add_pkcs11_key_data(&v, *i);
if (r < 0)
return r;
}
r = update_last_change(&v, true, false);
if (r < 0)
return r;
if (DEBUG_LOGGING)
json_variant_dump(v, JSON_FORMAT_PRETTY, NULL, NULL);
hr = user_record_new();
if (!hr)
return log_oom();
r = user_record_load(hr, v, USER_RECORD_REQUIRE_REGULAR|USER_RECORD_ALLOW_SECRET|USER_RECORD_ALLOW_PRIVILEGED|USER_RECORD_ALLOW_PER_MACHINE|USER_RECORD_ALLOW_SIGNATURE|USER_RECORD_LOG);
if (r < 0)
return r;
*ret = TAKE_PTR(hr);
return 0;
}
static int acquire_new_password(
const char *user_name,
UserRecord *hr,
bool suggest) {
unsigned i = 5;
char *e;
int r;
assert(user_name);
assert(hr);
e = getenv("NEWPASSWORD");
if (e) {
/* As above, this is not for use, just for testing */
r = user_record_set_password(hr, STRV_MAKE(e), /* prepend = */ false);
if (r < 0)
return log_error_errno(r, "Failed to store password: %m");
string_erase(e);
if (unsetenv("NEWPASSWORD") < 0)
return log_error_errno(errno, "Failed to unset $NEWPASSWORD: %m");
return 0;
}
if (suggest)
(void) suggest_passwords();
for (;;) {
_cleanup_(strv_free_erasep) char **first = NULL, **second = NULL;
_cleanup_free_ char *question = NULL;
if (--i == 0)
return log_error_errno(SYNTHETIC_ERRNO(ENOKEY), "Too many attempts, giving up:");
if (asprintf(&question, "Please enter new password for user %s:", user_name) < 0)
return log_oom();
r = ask_password_auto(question, "user-home", NULL, "home-password", USEC_INFINITY, 0, &first);
if (r < 0)
return log_error_errno(r, "Failed to acquire password: %m");
question = mfree(question);
if (asprintf(&question, "Please enter new password for user %s (repeat):", user_name) < 0)
return log_oom();
r = ask_password_auto(question, "user-home", NULL, "home-password", USEC_INFINITY, 0, &second);
if (r < 0)
return log_error_errno(r, "Failed to acquire password: %m");
if (strv_equal(first, second)) {
r = user_record_set_password(hr, first, /* prepend = */ false);
if (r < 0)
return log_error_errno(r, "Failed to store password: %m");
return 0;
}
log_error("Password didn't match, try again.");
}
}
static int create_home(int argc, char *argv[], void *userdata) {
_cleanup_(sd_bus_flush_close_unrefp) sd_bus *bus = NULL;
_cleanup_(user_record_unrefp) UserRecord *hr = NULL;
_cleanup_strv_free_ char **original_hashed_passwords = NULL;
int r;
r = acquire_bus(&bus);
if (r < 0)
return r;
(void) polkit_agent_open_if_enabled(arg_transport, arg_ask_password);
if (argc >= 2) {
/* If a username was specified, use it */
if (valid_user_group_name(argv[1], 0))
r = json_variant_set_field_string(&arg_identity_extra, "userName", argv[1]);
else {
_cleanup_free_ char *un = NULL, *rr = NULL;
/* Before we consider the user name invalid, let's check if we can split it? */
r = split_user_name_realm(argv[1], &un, &rr);
if (r < 0)
return log_error_errno(SYNTHETIC_ERRNO(EINVAL), "User name '%s' is not valid: %m", argv[1]);
if (rr) {
r = json_variant_set_field_string(&arg_identity_extra, "realm", rr);
if (r < 0)
return log_error_errno(r, "Failed to set realm field: %m");
}
r = json_variant_set_field_string(&arg_identity_extra, "userName", un);
}
if (r < 0)
return log_error_errno(r, "Failed to set userName field: %m");
} else {
/* If neither a username nor an identity have been specified we cannot operate. */
if (!arg_identity)
return log_error_errno(SYNTHETIC_ERRNO(EINVAL), "User name required.");
}
r = acquire_new_home_record(&hr);
if (r < 0)
return r;
/* Remember the original hashed passwords before we add our own, so that we can return to them later,
* should the entered password turn out not to be acceptable. */
original_hashed_passwords = strv_copy(hr->hashed_password);
if (!original_hashed_passwords)
return log_oom();
/* If the JSON record carries no plain text password, then let's query it manually. */
if (!hr->password) {
if (strv_isempty(hr->hashed_password)) {
/* No regular (i.e. non-PKCS#11) hashed passwords set in the record, let's fix that. */
r = acquire_new_password(hr->user_name, hr, /* suggest = */ true);
if (r < 0)
return r;
r = user_record_make_hashed_password(hr, hr->password, /* extend = */ true);
if (r < 0)
return log_error_errno(r, "Failed to hash password: %m");
} else {
/* There's a hash password set in the record, acquire the unhashed version of it. */
r = acquire_existing_password(hr->user_name, hr, false);
if (r < 0)
return r;
}
}
if (hr->enforce_password_policy == 0) {
_cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL;
/* If password quality enforcement is disabled, let's at least warn client side */
r = quality_check_password(hr, hr, &error);
if (r < 0)
log_warning_errno(r, "Specified password does not pass quality checks (%s), proceeding anyway.", bus_error_message(&error, r));
}
for (;;) {
_cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL;
_cleanup_(sd_bus_message_unrefp) sd_bus_message *m = NULL;
_cleanup_(erase_and_freep) char *formatted = NULL;
r = json_variant_format(hr->json, 0, &formatted);
if (r < 0)
return r;
r = bus_message_new_method_call(bus, &m, bus_home_mgr, "CreateHome");
if (r < 0)
return bus_log_create_error(r);
(void) sd_bus_message_sensitive(m);
r = sd_bus_message_append(m, "s", formatted);
if (r < 0)
return bus_log_create_error(r);
r = sd_bus_call(bus, m, HOME_SLOW_BUS_CALL_TIMEOUT_USEC, &error, NULL);
if (r < 0) {
if (!sd_bus_error_has_name(&error, BUS_ERROR_LOW_PASSWORD_QUALITY))
return log_error_errno(r, "Failed to create user home: %s", bus_error_message(&error, r));
log_error_errno(r, "%s", bus_error_message(&error, r));
log_info("(Use --enforce-password-policy=no to turn off password quality checks for this account.)");
} else
break; /* done */
r = user_record_set_hashed_password(hr, original_hashed_passwords);
if (r < 0)
return r;
r = acquire_new_password(hr->user_name, hr, /* suggest = */ false);
if (r < 0)
return r;
r = user_record_make_hashed_password(hr, hr->password, /* extend = */ true);
if (r < 0)
return log_error_errno(r, "Failed to hash passwords: %m");
}
return 0;
}
static int remove_home(int argc, char *argv[], void *userdata) {
_cleanup_(sd_bus_flush_close_unrefp) sd_bus *bus = NULL;
int r, ret = 0;
char **i;
r = acquire_bus(&bus);
if (r < 0)
return r;
(void) polkit_agent_open_if_enabled(arg_transport, arg_ask_password);
STRV_FOREACH(i, strv_skip(argv, 1)) {
_cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL;
_cleanup_(sd_bus_message_unrefp) sd_bus_message *m = NULL;
r = bus_message_new_method_call(bus, &m, bus_home_mgr, "RemoveHome");
if (r < 0)
return bus_log_create_error(r);
r = sd_bus_message_append(m, "s", *i);
if (r < 0)
return bus_log_create_error(r);
r = sd_bus_call(bus, m, HOME_SLOW_BUS_CALL_TIMEOUT_USEC, &error, NULL);
if (r < 0) {
log_error_errno(r, "Failed to remove home: %s", bus_error_message(&error, r));
if (ret == 0)
ret = r;
}
}
return ret;
}
static int acquire_updated_home_record(
sd_bus *bus,
const char *username,
UserRecord **ret) {
_cleanup_(json_variant_unrefp) JsonVariant *json = NULL;
_cleanup_(user_record_unrefp) UserRecord *hr = NULL;
char **i;
int r;
assert(ret);
if (arg_identity) {
unsigned line, column;
JsonVariant *un;
r = json_parse_file(
streq(arg_identity, "-") ? stdin : NULL,
streq(arg_identity, "-") ? "<stdin>" : arg_identity, JSON_PARSE_SENSITIVE, &json, &line, &column);
if (r < 0)
return log_error_errno(r, "Failed to parse identity at %u:%u: %m", line, column);
un = json_variant_by_key(json, "userName");
if (un) {
if (!json_variant_is_string(un) || (username && !streq(json_variant_string(un), username)))
return log_error_errno(SYNTHETIC_ERRNO(EINVAL), "User name specified on command line and in JSON record do not match.");
} else {
if (!username)
return log_error_errno(SYNTHETIC_ERRNO(EINVAL), "No username specified.");
r = json_variant_set_field_string(&arg_identity_extra, "userName", username);
if (r < 0)
return log_error_errno(r, "Failed to set userName field: %m");
}
} else {
_cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL;
_cleanup_(sd_bus_message_unrefp) sd_bus_message *reply = NULL;
int incomplete;
const char *text;
if (!identity_properties_specified())
return log_error_errno(SYNTHETIC_ERRNO(EALREADY), "No field to change specified.");
r = bus_call_method(bus, bus_home_mgr, "GetUserRecordByName", &error, &reply, "s", username);
if (r < 0)
return log_error_errno(r, "Failed to acquire user home record: %s", bus_error_message(&error, r));
r = sd_bus_message_read(reply, "sbo", &text, &incomplete, NULL);
if (r < 0)
return bus_log_parse_error(r);
if (incomplete)
return log_error_errno(SYNTHETIC_ERRNO(EACCES), "Lacking rights to acquire user record including privileged metadata, can't update record.");
r = json_parse(text, JSON_PARSE_SENSITIVE, &json, NULL, NULL);
if (r < 0)
return log_error_errno(r, "Failed to parse JSON identity: %m");
reply = sd_bus_message_unref(reply);
r = json_variant_filter(&json, STRV_MAKE("binding", "status", "signature"));
if (r < 0)
return log_error_errno(r, "Failed to strip binding and status from record to update: %m");
}
r = apply_identity_changes(&json);
if (r < 0)
return r;
STRV_FOREACH(i, arg_pkcs11_token_uri) {
r = add_pkcs11_key_data(&json, *i);
if (r < 0)
return r;
}
/* If the user supplied a full record, then add in lastChange, but do not override. Otherwise always
* override. */
r = update_last_change(&json, !!arg_pkcs11_token_uri, !arg_identity);
if (r < 0)
return r;
if (DEBUG_LOGGING)
json_variant_dump(json, JSON_FORMAT_PRETTY, NULL, NULL);
hr = user_record_new();
if (!hr)
return log_oom();
r = user_record_load(hr, json, USER_RECORD_REQUIRE_REGULAR|USER_RECORD_ALLOW_PRIVILEGED|USER_RECORD_ALLOW_PER_MACHINE|USER_RECORD_ALLOW_SECRET|USER_RECORD_ALLOW_SIGNATURE|USER_RECORD_LOG);
if (r < 0)
return r;
*ret = TAKE_PTR(hr);
return 0;
}
static int update_home(int argc, char *argv[], void *userdata) {
_cleanup_(sd_bus_flush_close_unrefp) sd_bus *bus = NULL;
_cleanup_(user_record_unrefp) UserRecord *hr = NULL;
_cleanup_free_ char *buffer = NULL;
const char *username;
int r;
if (argc >= 2)
username = argv[1];
else if (!arg_identity) {
buffer = getusername_malloc();
if (!buffer)
return log_oom();
username = buffer;
} else
username = NULL;
r = acquire_bus(&bus);
if (r < 0)
return r;
(void) polkit_agent_open_if_enabled(arg_transport, arg_ask_password);
r = acquire_updated_home_record(bus, username, &hr);
if (r < 0)
return r;
for (;;) {
_cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL;
_cleanup_(sd_bus_message_unrefp) sd_bus_message *m = NULL;
_cleanup_free_ char *formatted = NULL;
r = bus_message_new_method_call(bus, &m, bus_home_mgr, "UpdateHome");
if (r < 0)
return bus_log_create_error(r);
r = json_variant_format(hr->json, 0, &formatted);
if (r < 0)
return r;
(void) sd_bus_message_sensitive(m);
r = sd_bus_message_append(m, "s", formatted);
if (r < 0)
return bus_log_create_error(r);
r = sd_bus_call(bus, m, HOME_SLOW_BUS_CALL_TIMEOUT_USEC, &error, NULL);
if (r < 0) {
if (arg_and_change_password &&
sd_bus_error_has_name(&error, BUS_ERROR_BAD_PASSWORD_AND_NO_TOKEN))
/* In the generic handler we'd ask for a password in this case, but when
* changing passwords that's not sufficient, as we need to acquire all keys
* first. */
return log_error_errno(r, "Security token not inserted, refusing.");
r = handle_generic_user_record_error(hr->user_name, hr, &error, r, false);
if (r < 0)
return r;
} else
break;
}
/* Also sync down disk size to underlying LUKS/fscrypt/quota */
while (arg_and_resize) {
_cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL;
_cleanup_(sd_bus_message_unrefp) sd_bus_message *m = NULL;
log_debug("Resizing");
r = bus_message_new_method_call(bus, &m, bus_home_mgr, "ResizeHome");
if (r < 0)
return bus_log_create_error(r);
/* Specify UINT64_MAX as size, in which case the underlying disk size will just be synced */
r = sd_bus_message_append(m, "st", hr->user_name, UINT64_MAX);
if (r < 0)
return bus_log_create_error(r);
r = bus_message_append_secret(m, hr);
if (r < 0)
return bus_log_create_error(r);
r = sd_bus_call(bus, m, HOME_SLOW_BUS_CALL_TIMEOUT_USEC, &error, NULL);
if (r < 0) {
if (arg_and_change_password &&
sd_bus_error_has_name(&error, BUS_ERROR_BAD_PASSWORD_AND_NO_TOKEN))
return log_error_errno(r, "Security token not inserted, refusing.");
r = handle_generic_user_record_error(hr->user_name, hr, &error, r, false);
if (r < 0)
return r;
} else
break;
}
/* Also sync down passwords to underlying LUKS/fscrypt */
while (arg_and_change_password) {
_cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL;
_cleanup_(sd_bus_message_unrefp) sd_bus_message *m = NULL;
log_debug("Propagating password");
r = bus_message_new_method_call(bus, &m, bus_home_mgr, "ChangePasswordHome");
if (r < 0)
return bus_log_create_error(r);
/* Specify an empty new secret, in which case the underlying LUKS/fscrypt password will just be synced */
r = sd_bus_message_append(m, "ss", hr->user_name, "{}");
if (r < 0)
return bus_log_create_error(r);
r = bus_message_append_secret(m, hr);
if (r < 0)
return bus_log_create_error(r);
r = sd_bus_call(bus, m, HOME_SLOW_BUS_CALL_TIMEOUT_USEC, &error, NULL);
if (r < 0) {
if (sd_bus_error_has_name(&error, BUS_ERROR_BAD_PASSWORD_AND_NO_TOKEN))
return log_error_errno(r, "Security token not inserted, refusing.");
r = handle_generic_user_record_error(hr->user_name, hr, &error, r, false);
if (r < 0)
return r;
} else
break;
}
return 0;
}
static int passwd_home(int argc, char *argv[], void *userdata) {
_cleanup_(user_record_unrefp) UserRecord *old_secret = NULL, *new_secret = NULL;
_cleanup_(sd_bus_flush_close_unrefp) sd_bus *bus = NULL;
_cleanup_free_ char *buffer = NULL;
const char *username;
int r;
if (arg_pkcs11_token_uri)
return log_error_errno(SYNTHETIC_ERRNO(EINVAL), "To change the PKCS#11 security token use 'homectl update --pkcs11-token-uri=…'.");
if (identity_properties_specified())
return log_error_errno(SYNTHETIC_ERRNO(EINVAL), "The 'passwd' verb does not permit changing other record properties at the same time.");
if (argc >= 2)
username = argv[1];
else {
buffer = getusername_malloc();
if (!buffer)
return log_oom();
username = buffer;
}
r = acquire_bus(&bus);
if (r < 0)
return r;
(void) polkit_agent_open_if_enabled(arg_transport, arg_ask_password);
old_secret = user_record_new();
if (!old_secret)
return log_oom();
new_secret = user_record_new();
if (!new_secret)
return log_oom();
r = acquire_new_password(username, new_secret, /* suggest = */ true);
if (r < 0)
return r;
for (;;) {
_cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL;
_cleanup_(sd_bus_message_unrefp) sd_bus_message *m = NULL;
r = bus_message_new_method_call(bus, &m, bus_home_mgr, "ChangePasswordHome");
if (r < 0)
return bus_log_create_error(r);
r = sd_bus_message_append(m, "s", username);
if (r < 0)
return bus_log_create_error(r);
r = bus_message_append_secret(m, new_secret);
if (r < 0)
return bus_log_create_error(r);
r = bus_message_append_secret(m, old_secret);
if (r < 0)
return bus_log_create_error(r);
r = sd_bus_call(bus, m, HOME_SLOW_BUS_CALL_TIMEOUT_USEC, &error, NULL);
if (r < 0) {
if (sd_bus_error_has_name(&error, BUS_ERROR_LOW_PASSWORD_QUALITY)) {
log_error_errno(r, "%s", bus_error_message(&error, r));
r = acquire_new_password(username, new_secret, /* suggest = */ false);
} else if (sd_bus_error_has_name(&error, BUS_ERROR_BAD_PASSWORD_AND_NO_TOKEN))
/* In the generic handler we'd ask for a password in this case, but when
* changing passwords that's not sufficeint, as we need to acquire all keys
* first. */
return log_error_errno(r, "Security token not inserted, refusing.");
else
r = handle_generic_user_record_error(username, old_secret, &error, r, true);
if (r < 0)
return r;
} else
break;
}
return 0;
}
static int resize_home(int argc, char *argv[], void *userdata) {
_cleanup_(sd_bus_flush_close_unrefp) sd_bus *bus = NULL;
_cleanup_(user_record_unrefp) UserRecord *secret = NULL;
uint64_t ds = UINT64_MAX;
int r;
r = acquire_bus(&bus);
if (r < 0)
return r;
(void) polkit_agent_open_if_enabled(arg_transport, arg_ask_password);
if (arg_disk_size_relative != UINT64_MAX ||
(argc > 2 && parse_percent(argv[2]) >= 0))
return log_error_errno(SYNTHETIC_ERRNO(EOPNOTSUPP),
"Relative disk size specification currently not supported when resizing.");
if (argc > 2) {
r = parse_size(argv[2], 1024, &ds);
if (r < 0)
return log_error_errno(r, "Failed to parse disk size parameter: %s", argv[2]);
}
if (arg_disk_size != UINT64_MAX) {
if (ds != UINT64_MAX && ds != arg_disk_size)
return log_error_errno(SYNTHETIC_ERRNO(EINVAL), "Disk size specified twice and doesn't match, refusing.");
ds = arg_disk_size;
}
secret = user_record_new();
if (!secret)
return log_oom();
for (;;) {
_cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL;
_cleanup_(sd_bus_message_unrefp) sd_bus_message *m = NULL;
r = bus_message_new_method_call(bus, &m, bus_home_mgr, "ResizeHome");
if (r < 0)
return bus_log_create_error(r);
r = sd_bus_message_append(m, "st", argv[1], ds);
if (r < 0)
return bus_log_create_error(r);
r = bus_message_append_secret(m, secret);
if (r < 0)
return bus_log_create_error(r);
r = sd_bus_call(bus, m, HOME_SLOW_BUS_CALL_TIMEOUT_USEC, &error, NULL);
if (r < 0) {
r = handle_generic_user_record_error(argv[1], secret, &error, r, false);
if (r < 0)
return r;
} else
break;
}
return 0;
}
static int lock_home(int argc, char *argv[], void *userdata) {
_cleanup_(sd_bus_flush_close_unrefp) sd_bus *bus = NULL;
int r, ret = 0;
char **i;
r = acquire_bus(&bus);
if (r < 0)
return r;
STRV_FOREACH(i, strv_skip(argv, 1)) {
_cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL;
_cleanup_(sd_bus_message_unrefp) sd_bus_message *m = NULL;
r = bus_message_new_method_call(bus, &m, bus_home_mgr, "LockHome");
if (r < 0)
return bus_log_create_error(r);
r = sd_bus_message_append(m, "s", *i);
if (r < 0)
return bus_log_create_error(r);
r = sd_bus_call(bus, m, HOME_SLOW_BUS_CALL_TIMEOUT_USEC, &error, NULL);
if (r < 0) {
log_error_errno(r, "Failed to lock home: %s", bus_error_message(&error, r));
if (ret == 0)
ret = r;
}
}
return ret;
}
static int unlock_home(int argc, char *argv[], void *userdata) {
_cleanup_(sd_bus_flush_close_unrefp) sd_bus *bus = NULL;
int r, ret = 0;
char **i;
r = acquire_bus(&bus);
if (r < 0)
return r;
STRV_FOREACH(i, strv_skip(argv, 1)) {
_cleanup_(user_record_unrefp) UserRecord *secret = NULL;
secret = user_record_new();
if (!secret)
return log_oom();
for (;;) {
_cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL;
_cleanup_(sd_bus_message_unrefp) sd_bus_message *m = NULL;
r = bus_message_new_method_call(bus, &m, bus_home_mgr, "UnlockHome");
if (r < 0)
return bus_log_create_error(r);
r = sd_bus_message_append(m, "s", *i);
if (r < 0)
return bus_log_create_error(r);
r = bus_message_append_secret(m, secret);
if (r < 0)
return bus_log_create_error(r);
r = sd_bus_call(bus, m, HOME_SLOW_BUS_CALL_TIMEOUT_USEC, &error, NULL);
if (r < 0) {
r = handle_generic_user_record_error(argv[1], secret, &error, r, false);
if (r < 0) {
if (ret == 0)
ret = r;
break;
}
} else
break;
}
}
return ret;
}
static int with_home(int argc, char *argv[], void *userdata) {
_cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL;
_cleanup_(sd_bus_message_unrefp) sd_bus_message *m = NULL, *reply = NULL;
_cleanup_(sd_bus_flush_close_unrefp) sd_bus *bus = NULL;
_cleanup_(user_record_unrefp) UserRecord *secret = NULL;
_cleanup_close_ int acquired_fd = -1;
_cleanup_strv_free_ char **cmdline = NULL;
const char *home;
int r, ret;
pid_t pid;
r = acquire_bus(&bus);
if (r < 0)
return r;
if (argc < 3) {
_cleanup_free_ char *shell = NULL;
/* If no command is specified, spawn a shell */
r = get_shell(&shell);
if (r < 0)
return log_error_errno(r, "Failed to acquire shell: %m");
cmdline = strv_new(shell);
} else
cmdline = strv_copy(argv + 2);
if (!cmdline)
return log_oom();
secret = user_record_new();
if (!secret)
return log_oom();
for (;;) {
r = bus_message_new_method_call(bus, &m, bus_home_mgr, "AcquireHome");
if (r < 0)
return bus_log_create_error(r);
r = sd_bus_message_append(m, "s", argv[1]);
if (r < 0)
return bus_log_create_error(r);
r = bus_message_append_secret(m, secret);
if (r < 0)
return bus_log_create_error(r);
r = sd_bus_message_append(m, "b", /* please_suspend = */ getenv_bool("SYSTEMD_PLEASE_SUSPEND_HOME") > 0);
if (r < 0)
return bus_log_create_error(r);
r = sd_bus_call(bus, m, HOME_SLOW_BUS_CALL_TIMEOUT_USEC, &error, &reply);
m = sd_bus_message_unref(m);
if (r < 0) {
r = handle_generic_user_record_error(argv[1], secret, &error, r, false);
if (r < 0)
return r;
sd_bus_error_free(&error);
} else {
int fd;
r = sd_bus_message_read(reply, "h", &fd);
if (r < 0)
return bus_log_parse_error(r);
acquired_fd = fcntl(fd, F_DUPFD_CLOEXEC, 3);
if (acquired_fd < 0)
return log_error_errno(errno, "Failed to duplicate acquired fd: %m");
reply = sd_bus_message_unref(reply);
break;
}
}
r = bus_call_method(bus, bus_home_mgr, "GetHomeByName", &error, &reply, "s", argv[1]);
if (r < 0)
return log_error_errno(r, "Failed to inspect home: %s", bus_error_message(&error, r));
r = sd_bus_message_read(reply, "usussso", NULL, NULL, NULL, NULL, &home, NULL, NULL);
if (r < 0)
return bus_log_parse_error(r);
r = safe_fork("(with)", FORK_RESET_SIGNALS|FORK_CLOSE_ALL_FDS|FORK_DEATHSIG|FORK_LOG|FORK_RLIMIT_NOFILE_SAFE|FORK_REOPEN_LOG, &pid);
if (r < 0)
return r;
if (r == 0) {
if (chdir(home) < 0) {
log_error_errno(errno, "Failed to change to directory %s: %m", home);
_exit(255);
}
execvp(cmdline[0], cmdline);
log_error_errno(errno, "Failed to execute %s: %m", cmdline[0]);
_exit(255);
}
ret = wait_for_terminate_and_check(cmdline[0], pid, WAIT_LOG_ABNORMAL);
/* Close the fd that pings the home now. */
acquired_fd = safe_close(acquired_fd);
r = bus_message_new_method_call(bus, &m, bus_home_mgr, "ReleaseHome");
if (r < 0)
return bus_log_create_error(r);
r = sd_bus_message_append(m, "s", argv[1]);
if (r < 0)
return bus_log_create_error(r);
r = sd_bus_call(bus, m, HOME_SLOW_BUS_CALL_TIMEOUT_USEC, &error, NULL);
if (r < 0) {
if (sd_bus_error_has_name(&error, BUS_ERROR_HOME_BUSY))
log_notice("Not deactivating home directory of %s, as it is still used.", argv[1]);
else
return log_error_errno(r, "Failed to release user home: %s", bus_error_message(&error, r));
}
return ret;
}
static int lock_all_homes(int argc, char *argv[], void *userdata) {
_cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL;
_cleanup_(sd_bus_message_unrefp) sd_bus_message *m = NULL;
_cleanup_(sd_bus_flush_close_unrefp) sd_bus *bus = NULL;
int r;
r = acquire_bus(&bus);
if (r < 0)
return r;
r = bus_message_new_method_call(bus, &m, bus_home_mgr, "LockAllHomes");
if (r < 0)
return bus_log_create_error(r);
r = sd_bus_call(bus, m, HOME_SLOW_BUS_CALL_TIMEOUT_USEC, &error, NULL);
if (r < 0)
return log_error_errno(r, "Failed to lock home: %s", bus_error_message(&error, r));
return 0;
}
static int drop_from_identity(const char *field) {
int r;
assert(field);
/* If we are called to update an identity record and drop some field, let's keep track of what to
* remove from the old record */
r = strv_extend(&arg_identity_filter, field);
if (r < 0)
return log_oom();
/* Let's also drop the field if it was previously set to a new value on the same command line */
r = json_variant_filter(&arg_identity_extra, STRV_MAKE(field));
if (r < 0)
return log_error_errno(r, "Failed to filter JSON identity data: %m");
r = json_variant_filter(&arg_identity_extra_this_machine, STRV_MAKE(field));
if (r < 0)
return log_error_errno(r, "Failed to filter JSON identity data: %m");
r = json_variant_filter(&arg_identity_extra_privileged, STRV_MAKE(field));
if (r < 0)
return log_error_errno(r, "Failed to filter JSON identity data: %m");
return 0;
}
static int help(int argc, char *argv[], void *userdata) {
_cleanup_free_ char *link = NULL;
int r;
(void) pager_open(arg_pager_flags);
r = terminal_urlify_man("homectl", "1", &link);
if (r < 0)
return log_oom();
printf("%1$s [OPTIONS...] COMMAND ...\n\n"
"%2$sCreate, manipulate or inspect home directories.%3$s\n"
"\n%4$sCommands:%5$s\n"
" list List home areas\n"
" activate USER… Activate a home area\n"
" deactivate USER… Deactivate a home area\n"
" inspect USER… Inspect a home area\n"
" authenticate USER… Authenticate a home area\n"
" create USER Create a home area\n"
" remove USER… Remove a home area\n"
" update USER Update a home area\n"
" passwd USER Change password of a home area\n"
" resize USER SIZE Resize a home area\n"
" lock USER… Temporarily lock an active home area\n"
" unlock USER… Unlock a temporarily locked home area\n"
" lock-all Lock all suitable home areas\n"
" with USER [COMMAND…] Run shell or command with access to a home area\n"
"\n%4$sOptions:%5$s\n"
" -h --help Show this help\n"
" --version Show package version\n"
" --no-pager Do not pipe output into a pager\n"
" --no-legend Do not show the headers and footers\n"
" --no-ask-password Do not ask for system passwords\n"
" -H --host=[USER@]HOST Operate on remote host\n"
" -M --machine=CONTAINER Operate on local container\n"
" --identity=PATH Read JSON identity from file\n"
" --json=FORMAT Output inspection data in JSON (takes one of\n"
" pretty, short, off)\n"
" -j Equivalent to --json=pretty (on TTY) or\n"
" --json=short (otherwise)\n"
" --export-format= Strip JSON inspection data (full, stripped,\n"
" minimal)\n"
" -E When specified once equals -j --export-format=\n"
" stripped, when specified twice equals\n"
" -j --export-format=minimal\n"
"\n%4$sGeneral User Record Properties:%5$s\n"
" -c --real-name=REALNAME Real name for user\n"
" --realm=REALM Realm to create user in\n"
" --email-address=EMAIL Email address for user\n"
" --location=LOCATION Set location of user on earth\n"
" --icon-name=NAME Icon name for user\n"
" -d --home-dir=PATH Home directory\n"
" -u --uid=UID Numeric UID for user\n"
" -G --member-of=GROUP Add user to group\n"
" --skel=PATH Skeleton directory to use\n"
" --shell=PATH Shell for account\n"
" --setenv=VARIABLE=VALUE Set an environment variable at log-in\n"
" --timezone=TIMEZONE Set a time-zone\n"
" --language=LOCALE Set preferred language\n"
" --ssh-authorized-keys=KEYS\n"
" Specify SSH public keys\n"
" --pkcs11-token-uri=URI URI to PKCS#11 security token containing\n"
" private key and matching X.509 certificate\n"
"\n%4$sAccount Management User Record Properties:%5$s\n"
" --locked=BOOL Set locked account state\n"
" --not-before=TIMESTAMP Do not allow logins before\n"
" --not-after=TIMESTAMP Do not allow logins after\n"
" --rate-limit-interval=SECS\n"
" Login rate-limit interval in seconds\n"
" --rate-limit-burst=NUMBER\n"
" Login rate-limit attempts per interval\n"
"\n%4$sPassword Policy User Record Properties:%5$s\n"
" --password-hint=HINT Set Password hint\n"
" --enforce-password-policy=BOOL\n"
" Control whether to enforce system's password\n"
" policy for this user\n"
" -P Equivalent to --enforce-password-password=no\n"
" --password-change-now=BOOL\n"
" Require the password to be changed on next login\n"
" --password-change-min=TIME\n"
" Require minimum time between password changes\n"
" --password-change-max=TIME\n"
" Require maximum time between password changes\n"
" --password-change-warn=TIME\n"
" How much time to warn before password expiry\n"
" --password-change-inactive=TIME\n"
" How much time to block password after expiry\n"
"\n%4$sResource Management User Record Properties:%5$s\n"
" --disk-size=BYTES Size to assign the user on disk\n"
" --access-mode=MODE User home directory access mode\n"
" --umask=MODE Umask for user when logging in\n"
" --nice=NICE Nice level for user\n"
" --rlimit=LIMIT=VALUE[:VALUE]\n"
" Set resource limits\n"
" --tasks-max=MAX Set maximum number of per-user tasks\n"
" --memory-high=BYTES Set high memory threshold in bytes\n"
" --memory-max=BYTES Set maximum memory limit\n"
" --cpu-weight=WEIGHT Set CPU weight\n"
" --io-weight=WEIGHT Set IO weight\n"
"\n%4$sStorage User Record Properties:%5$s\n"
" --storage=STORAGE Storage type to use (luks, fscrypt, directory,\n"
" subvolume, cifs)\n"
" --image-path=PATH Path to image file/directory\n"
"\n%4$sLUKS Storage User Record Properties:%5$s\n"
" --fs-type=TYPE File system type to use in case of luks\n"
" storage (ext4, xfs, btrfs)\n"
" --luks-discard=BOOL Whether to use 'discard' feature of file system\n"
" when activated (mounted)\n"
" --luks-offline-discard=BOOL\n"
" Whether to trim file on logout\n"
" --luks-cipher=CIPHER Cipher to use for LUKS encryption\n"
" --luks-cipher-mode=MODE Cipher mode to use for LUKS encryption\n"
" --luks-volume-key-size=BITS\n"
" Volume key size to use for LUKS encryption\n"
" --luks-pbkdf-type=TYPE Password-based Key Derivation Function to use\n"
" --luks-pbkdf-hash-algorithm=ALGORITHM\n"
" PBKDF hash algorithm to use\n"
" --luks-pbkdf-time-cost=SECS\n"
" Time cost for PBKDF in seconds\n"
" --luks-pbkdf-memory-cost=BYTES\n"
" Memory cost for PBKDF in bytes\n"
" --luks-pbkdf-parallel-threads=NUMBER\n"
" Number of parallel threads for PKBDF\n"
"\n%4$sMounting User Record Properties:%5$s\n"
" --nosuid=BOOL Control the 'nosuid' flag of the home mount\n"
" --nodev=BOOL Control the 'nodev' flag of the home mount\n"
" --noexec=BOOL Control the 'noexec' flag of the home mount\n"
"\n%4$sCIFS User Record Properties:%5$s\n"
" --cifs-domain=DOMAIN CIFS (Windows) domain\n"
" --cifs-user-name=USER CIFS (Windows) user name\n"
" --cifs-service=SERVICE CIFS (Windows) service to mount as home area\n"
"\n%4$sLogin Behaviour User Record Properties:%5$s\n"
" --stop-delay=SECS How long to leave user services running after\n"
" logout\n"
" --kill-processes=BOOL Whether to kill user processes when sessions\n"
" terminate\n"
" --auto-login=BOOL Try to log this user in automatically\n"
"\nSee the %6$s for details.\n"
, program_invocation_short_name
, ansi_highlight(), ansi_normal()
, ansi_underline(), ansi_normal()
, link
);
return 0;
}
static int parse_argv(int argc, char *argv[]) {
enum {
ARG_VERSION = 0x100,
ARG_NO_PAGER,
ARG_NO_LEGEND,
ARG_NO_ASK_PASSWORD,
ARG_REALM,
ARG_EMAIL_ADDRESS,
ARG_DISK_SIZE,
ARG_ACCESS_MODE,
ARG_STORAGE,
ARG_FS_TYPE,
ARG_IMAGE_PATH,
ARG_UMASK,
ARG_LUKS_DISCARD,
ARG_LUKS_OFFLINE_DISCARD,
ARG_JSON,
ARG_SETENV,
ARG_TIMEZONE,
ARG_LANGUAGE,
ARG_LOCKED,
ARG_SSH_AUTHORIZED_KEYS,
ARG_LOCATION,
ARG_ICON_NAME,
ARG_PASSWORD_HINT,
ARG_NICE,
ARG_RLIMIT,
ARG_NOT_BEFORE,
ARG_NOT_AFTER,
ARG_LUKS_CIPHER,
ARG_LUKS_CIPHER_MODE,
ARG_LUKS_VOLUME_KEY_SIZE,
ARG_NOSUID,
ARG_NODEV,
ARG_NOEXEC,
ARG_CIFS_DOMAIN,
ARG_CIFS_USER_NAME,
ARG_CIFS_SERVICE,
ARG_TASKS_MAX,
ARG_MEMORY_HIGH,
ARG_MEMORY_MAX,
ARG_CPU_WEIGHT,
ARG_IO_WEIGHT,
ARG_LUKS_PBKDF_TYPE,
ARG_LUKS_PBKDF_HASH_ALGORITHM,
ARG_LUKS_PBKDF_TIME_COST,
ARG_LUKS_PBKDF_MEMORY_COST,
ARG_LUKS_PBKDF_PARALLEL_THREADS,
ARG_RATE_LIMIT_INTERVAL,
ARG_RATE_LIMIT_BURST,
ARG_STOP_DELAY,
ARG_KILL_PROCESSES,
ARG_ENFORCE_PASSWORD_POLICY,
ARG_PASSWORD_CHANGE_NOW,
ARG_PASSWORD_CHANGE_MIN,
ARG_PASSWORD_CHANGE_MAX,
ARG_PASSWORD_CHANGE_WARN,
ARG_PASSWORD_CHANGE_INACTIVE,
ARG_EXPORT_FORMAT,
ARG_AUTO_LOGIN,
ARG_PKCS11_TOKEN_URI,
ARG_AND_RESIZE,
ARG_AND_CHANGE_PASSWORD,
};
static const struct option options[] = {
{ "help", no_argument, NULL, 'h' },
{ "version", no_argument, NULL, ARG_VERSION },
{ "no-pager", no_argument, NULL, ARG_NO_PAGER },
{ "no-legend", no_argument, NULL, ARG_NO_LEGEND },
{ "no-ask-password", no_argument, NULL, ARG_NO_ASK_PASSWORD },
{ "host", required_argument, NULL, 'H' },
{ "machine", required_argument, NULL, 'M' },
{ "identity", required_argument, NULL, 'I' },
{ "real-name", required_argument, NULL, 'c' },
{ "comment", required_argument, NULL, 'c' }, /* Compat alias to keep thing in sync with useradd(8) */
{ "realm", required_argument, NULL, ARG_REALM },
{ "email-address", required_argument, NULL, ARG_EMAIL_ADDRESS },
{ "location", required_argument, NULL, ARG_LOCATION },
{ "password-hint", required_argument, NULL, ARG_PASSWORD_HINT },
{ "icon-name", required_argument, NULL, ARG_ICON_NAME },
{ "home-dir", required_argument, NULL, 'd' }, /* Compatible with useradd(8) */
{ "uid", required_argument, NULL, 'u' }, /* Compatible with useradd(8) */
{ "member-of", required_argument, NULL, 'G' },
{ "groups", required_argument, NULL, 'G' }, /* Compat alias to keep thing in sync with useradd(8) */
{ "skel", required_argument, NULL, 'k' }, /* Compatible with useradd(8) */
{ "shell", required_argument, NULL, 's' }, /* Compatible with useradd(8) */
{ "setenv", required_argument, NULL, ARG_SETENV },
{ "timezone", required_argument, NULL, ARG_TIMEZONE },
{ "language", required_argument, NULL, ARG_LANGUAGE },
{ "locked", required_argument, NULL, ARG_LOCKED },
{ "not-before", required_argument, NULL, ARG_NOT_BEFORE },
{ "not-after", required_argument, NULL, ARG_NOT_AFTER },
{ "expiredate", required_argument, NULL, 'e' }, /* Compat alias to keep thing in sync with useradd(8) */
{ "ssh-authorized-keys", required_argument, NULL, ARG_SSH_AUTHORIZED_KEYS },
{ "disk-size", required_argument, NULL, ARG_DISK_SIZE },
{ "access-mode", required_argument, NULL, ARG_ACCESS_MODE },
{ "umask", required_argument, NULL, ARG_UMASK },
{ "nice", required_argument, NULL, ARG_NICE },
{ "rlimit", required_argument, NULL, ARG_RLIMIT },
{ "tasks-max", required_argument, NULL, ARG_TASKS_MAX },
{ "memory-high", required_argument, NULL, ARG_MEMORY_HIGH },
{ "memory-max", required_argument, NULL, ARG_MEMORY_MAX },
{ "cpu-weight", required_argument, NULL, ARG_CPU_WEIGHT },
{ "io-weight", required_argument, NULL, ARG_IO_WEIGHT },
{ "storage", required_argument, NULL, ARG_STORAGE },
{ "image-path", required_argument, NULL, ARG_IMAGE_PATH },
{ "fs-type", required_argument, NULL, ARG_FS_TYPE },
{ "luks-discard", required_argument, NULL, ARG_LUKS_DISCARD },
{ "luks-offline-discard", required_argument, NULL, ARG_LUKS_OFFLINE_DISCARD },
{ "luks-cipher", required_argument, NULL, ARG_LUKS_CIPHER },
{ "luks-cipher-mode", required_argument, NULL, ARG_LUKS_CIPHER_MODE },
{ "luks-volume-key-size", required_argument, NULL, ARG_LUKS_VOLUME_KEY_SIZE },
{ "luks-pbkdf-type", required_argument, NULL, ARG_LUKS_PBKDF_TYPE },
{ "luks-pbkdf-hash-algorithm", required_argument, NULL, ARG_LUKS_PBKDF_HASH_ALGORITHM },
{ "luks-pbkdf-time-cost", required_argument, NULL, ARG_LUKS_PBKDF_TIME_COST },
{ "luks-pbkdf-memory-cost", required_argument, NULL, ARG_LUKS_PBKDF_MEMORY_COST },
{ "luks-pbkdf-parallel-threads", required_argument, NULL, ARG_LUKS_PBKDF_PARALLEL_THREADS },
{ "nosuid", required_argument, NULL, ARG_NOSUID },
{ "nodev", required_argument, NULL, ARG_NODEV },
{ "noexec", required_argument, NULL, ARG_NOEXEC },
{ "cifs-user-name", required_argument, NULL, ARG_CIFS_USER_NAME },
{ "cifs-domain", required_argument, NULL, ARG_CIFS_DOMAIN },
{ "cifs-service", required_argument, NULL, ARG_CIFS_SERVICE },
{ "rate-limit-interval", required_argument, NULL, ARG_RATE_LIMIT_INTERVAL },
{ "rate-limit-burst", required_argument, NULL, ARG_RATE_LIMIT_BURST },
{ "stop-delay", required_argument, NULL, ARG_STOP_DELAY },
{ "kill-processes", required_argument, NULL, ARG_KILL_PROCESSES },
{ "enforce-password-policy", required_argument, NULL, ARG_ENFORCE_PASSWORD_POLICY },
{ "password-change-now", required_argument, NULL, ARG_PASSWORD_CHANGE_NOW },
{ "password-change-min", required_argument, NULL, ARG_PASSWORD_CHANGE_MIN },
{ "password-change-max", required_argument, NULL, ARG_PASSWORD_CHANGE_MAX },
{ "password-change-warn", required_argument, NULL, ARG_PASSWORD_CHANGE_WARN },
{ "password-change-inactive", required_argument, NULL, ARG_PASSWORD_CHANGE_INACTIVE },
{ "auto-login", required_argument, NULL, ARG_AUTO_LOGIN },
{ "json", required_argument, NULL, ARG_JSON },
{ "export-format", required_argument, NULL, ARG_EXPORT_FORMAT },
{ "pkcs11-token-uri", required_argument, NULL, ARG_PKCS11_TOKEN_URI },
{ "and-resize", required_argument, NULL, ARG_AND_RESIZE },
{ "and-change-password", required_argument, NULL, ARG_AND_CHANGE_PASSWORD },
{}
};
int r;
assert(argc >= 0);
assert(argv);
for (;;) {
int c;
c = getopt_long(argc, argv, "hH:M:I:c:d:u:k:s:e:G:jPE", options, NULL);
if (c < 0)
break;
switch (c) {
case 'h':
return help(0, NULL, NULL);
case ARG_VERSION:
return version();
case ARG_NO_PAGER:
arg_pager_flags |= PAGER_DISABLE;
break;
case ARG_NO_LEGEND:
arg_legend = false;
break;
case ARG_NO_ASK_PASSWORD:
arg_ask_password = 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 'I':
arg_identity = optarg;
break;
case 'c':
if (isempty(optarg)) {
r = drop_from_identity("realName");
if (r < 0)
return r;
break;
}
if (!valid_gecos(optarg))
return log_error_errno(SYNTHETIC_ERRNO(EINVAL), "Real name '%s' not a valid GECOS field.", optarg);
r = json_variant_set_field_string(&arg_identity_extra, "realName", optarg);
if (r < 0)
return log_error_errno(r, "Failed to set realName field: %m");
break;
case 'd': {
_cleanup_free_ char *hd = NULL;
if (isempty(optarg)) {
r = drop_from_identity("homeDirectory");
if (r < 0)
return r;
break;
}
r = parse_path_argument_and_warn(optarg, false, &hd);
if (r < 0)
return r;
if (!valid_home(hd))
return log_error_errno(SYNTHETIC_ERRNO(EINVAL), "Home directory '%s' not valid.", hd);
r = json_variant_set_field_string(&arg_identity_extra, "homeDirectory", hd);
if (r < 0)
return log_error_errno(r, "Failed to set homeDirectory field: %m");
break;
}
case ARG_REALM:
if (isempty(optarg)) {
r = drop_from_identity("realm");
if (r < 0)
return r;
break;
}
r = dns_name_is_valid(optarg);
if (r < 0)
return log_error_errno(r, "Failed to determine whether realm '%s' is a valid DNS domain: %m", optarg);
if (r == 0)
return log_error_errno(SYNTHETIC_ERRNO(EINVAL), "Realm '%s' is not a valid DNS domain: %m", optarg);
r = json_variant_set_field_string(&arg_identity_extra, "realm", optarg);
if (r < 0)
return log_error_errno(r, "Failed to set realm field: %m");
break;
case ARG_EMAIL_ADDRESS:
case ARG_LOCATION:
case ARG_ICON_NAME:
case ARG_CIFS_USER_NAME:
case ARG_CIFS_DOMAIN:
case ARG_CIFS_SERVICE: {
const char *field =
c == ARG_EMAIL_ADDRESS ? "emailAddress" :
c == ARG_LOCATION ? "location" :
c == ARG_ICON_NAME ? "iconName" :
c == ARG_CIFS_USER_NAME ? "cifsUserName" :
c == ARG_CIFS_DOMAIN ? "cifsDomain" :
c == ARG_CIFS_SERVICE ? "cifsService" :
NULL;
assert(field);
if (isempty(optarg)) {
r = drop_from_identity(field);
if (r < 0)
return r;
break;
}
r = json_variant_set_field_string(&arg_identity_extra, field, optarg);
if (r < 0)
return log_error_errno(r, "Failed to set %s field: %m", field);
break;
}
case ARG_PASSWORD_HINT:
if (isempty(optarg)) {
r = drop_from_identity("passwordHint");
if (r < 0)
return r;
break;
}
r = json_variant_set_field_string(&arg_identity_extra_privileged, "passwordHint", optarg);
if (r < 0)
return log_error_errno(r, "Failed to set passwordHint field: %m");
string_erase(optarg);
break;
case ARG_NICE: {
int nc;
if (isempty(optarg)) {
r = drop_from_identity("niceLevel");
if (r < 0)
return r;
break;
}
r = parse_nice(optarg, &nc);
if (r < 0)
return log_error_errno(r, "Failed to parse nice level: %s", optarg);
r = json_variant_set_field_integer(&arg_identity_extra, "niceLevel", nc);
if (r < 0)
return log_error_errno(r, "Failed to set niceLevel field: %m");
break;
}
case ARG_RLIMIT: {
_cleanup_(json_variant_unrefp) JsonVariant *v = NULL, *jcur = NULL, *jmax = NULL;
_cleanup_free_ char *field = NULL, *t = NULL;
const char *eq;
struct rlimit rl;
int l;
if (isempty(optarg)) {
/* Remove all resource limits */
r = drop_from_identity("resourceLimits");
if (r < 0)
return r;
arg_identity_filter_rlimits = strv_free(arg_identity_filter_rlimits);
arg_identity_extra_rlimits = json_variant_unref(arg_identity_extra_rlimits);
break;
}
eq = strchr(optarg, '=');
if (!eq)
return log_error_errno(SYNTHETIC_ERRNO(EINVAL), "Can't parse resource limit assignment: %s", optarg);
field = strndup(optarg, eq - optarg);
if (!field)
return log_oom();
l = rlimit_from_string_harder(field);
if (l < 0)
return log_error_errno(SYNTHETIC_ERRNO(EINVAL), "Unknown resource limit type: %s", field);
if (isempty(eq + 1)) {
/* Remove only the specific rlimit */
r = strv_extend(&arg_identity_filter_rlimits, rlimit_to_string(l));
if (r < 0)
return r;
r = json_variant_filter(&arg_identity_extra_rlimits, STRV_MAKE(field));
if (r < 0)
return log_error_errno(r, "Failed to filter JSON identity data: %m");
break;
}
r = rlimit_parse(l, eq + 1, &rl);
if (r < 0)
return log_error_errno(SYNTHETIC_ERRNO(EINVAL), "Failed to parse resource limit value: %s", eq + 1);
r = rl.rlim_cur == RLIM_INFINITY ? json_variant_new_null(&jcur) : json_variant_new_unsigned(&jcur, rl.rlim_cur);
if (r < 0)
return log_error_errno(SYNTHETIC_ERRNO(EINVAL), "Failed to allocate current integer: %m");
r = rl.rlim_max == RLIM_INFINITY ? json_variant_new_null(&jmax) : json_variant_new_unsigned(&jmax, rl.rlim_max);
if (r < 0)
return log_error_errno(SYNTHETIC_ERRNO(EINVAL), "Failed to allocate maximum integer: %m");
r = json_build(&v,
JSON_BUILD_OBJECT(
JSON_BUILD_PAIR("cur", JSON_BUILD_VARIANT(jcur)),
JSON_BUILD_PAIR("max", JSON_BUILD_VARIANT(jmax))));
if (r < 0)
return log_error_errno(r, "Failed to build resource limit: %m");
t = strjoin("RLIMIT_", rlimit_to_string(l));
if (!t)
return log_oom();
r = json_variant_set_field(&arg_identity_extra_rlimits, t, v);
if (r < 0)
return log_error_errno(r, "Failed to set %s field: %m", rlimit_to_string(l));
break;
}
case 'u': {
uid_t uid;
if (isempty(optarg)) {
r = drop_from_identity("uid");
if (r < 0)
return r;
break;
}
r = parse_uid(optarg, &uid);
if (r < 0)
return log_error_errno(r, "Failed to parse UID '%s'.", optarg);
if (uid_is_system(uid))
return log_error_errno(SYNTHETIC_ERRNO(EINVAL), "UID " UID_FMT " is in system range, refusing.", uid);
if (uid_is_dynamic(uid))
return log_error_errno(SYNTHETIC_ERRNO(EINVAL), "UID " UID_FMT " is in dynamic range, refusing.", uid);
if (uid == UID_NOBODY)
return log_error_errno(SYNTHETIC_ERRNO(EINVAL), "UID " UID_FMT " is nobody UID, refusing.", uid);
r = json_variant_set_field_unsigned(&arg_identity_extra, "uid", uid);
if (r < 0)
return log_error_errno(r, "Failed to set realm field: %m");
break;
}
case 'k':
case ARG_IMAGE_PATH: {
const char *field = c == 'k' ? "skeletonDirectory" : "imagePath";
_cleanup_free_ char *v = NULL;
if (isempty(optarg)) {
r = drop_from_identity(field);
if (r < 0)
return r;
break;
}
r = parse_path_argument_and_warn(optarg, false, &v);
if (r < 0)
return r;
r = json_variant_set_field_string(&arg_identity_extra_this_machine, field, v);
if (r < 0)
return log_error_errno(r, "Failed to set %s field: %m", v);
break;
}
case 's':
if (isempty(optarg)) {
r = drop_from_identity("shell");
if (r < 0)
return r;
break;
}
if (!valid_shell(optarg))
return log_error_errno(SYNTHETIC_ERRNO(EINVAL), "Shell '%s' not valid.", optarg);
r = json_variant_set_field_string(&arg_identity_extra, "shell", optarg);
if (r < 0)
return log_error_errno(r, "Failed to set shell field: %m");
break;
case ARG_SETENV: {
_cleanup_free_ char **l = NULL, **k = NULL;
_cleanup_(json_variant_unrefp) JsonVariant *ne = NULL;
JsonVariant *e;
if (isempty(optarg)) {
r = drop_from_identity("environment");
if (r < 0)
return r;
break;
}
if (!env_assignment_is_valid(optarg))
return log_error_errno(SYNTHETIC_ERRNO(EINVAL), "Environment assignment '%s' not valid.", optarg);
e = json_variant_by_key(arg_identity_extra, "environment");
if (e) {
r = json_variant_strv(e, &l);
if (r < 0)
return log_error_errno(r, "Failed to parse JSON environment field: %m");
}
k = strv_env_set(l, optarg);
if (!k)
return log_oom();
strv_sort(k);
r = json_variant_new_array_strv(&ne, k);
if (r < 0)
return log_error_errno(r, "Failed to allocate environment list JSON: %m");
r = json_variant_set_field(&arg_identity_extra, "environment", ne);
if (r < 0)
return log_error_errno(r, "Failed to set environment list: %m");
break;
}
case ARG_TIMEZONE:
if (isempty(optarg)) {
r = drop_from_identity("timeZone");
if (r < 0)
return r;
break;
}
if (!timezone_is_valid(optarg, LOG_DEBUG))
return log_error_errno(SYNTHETIC_ERRNO(EINVAL), "Timezone '%s' is not valid.", optarg);
r = json_variant_set_field_string(&arg_identity_extra, "timeZone", optarg);
if (r < 0)
return log_error_errno(r, "Failed to set timezone field: %m");
break;
case ARG_LANGUAGE:
if (isempty(optarg)) {
r = drop_from_identity("language");
if (r < 0)
return r;
break;
}
if (!locale_is_valid(optarg))
return log_error_errno(SYNTHETIC_ERRNO(EINVAL), "Locale '%s' is not valid.", optarg);
if (locale_is_installed(optarg) <= 0)
log_warning("Locale '%s' is not installed, accepting anyway.", optarg);
r = json_variant_set_field_string(&arg_identity_extra, "preferredLanguage", optarg);
if (r < 0)
return log_error_errno(r, "Failed to set preferredLanguage field: %m");
break;
case ARG_NOSUID:
case ARG_NODEV:
case ARG_NOEXEC:
case ARG_LOCKED:
case ARG_KILL_PROCESSES:
case ARG_ENFORCE_PASSWORD_POLICY:
case ARG_AUTO_LOGIN:
case ARG_PASSWORD_CHANGE_NOW: {
const char *field =
c == ARG_LOCKED ? "locked" :
c == ARG_NOSUID ? "mountNoSuid" :
c == ARG_NODEV ? "mountNoDevices" :
c == ARG_NOEXEC ? "mountNoExecute" :
c == ARG_KILL_PROCESSES ? "killProcesses" :
c == ARG_ENFORCE_PASSWORD_POLICY ? "enforcePasswordPolicy" :
c == ARG_AUTO_LOGIN ? "autoLogin" :
c == ARG_PASSWORD_CHANGE_NOW ? "passwordChangeNow" :
NULL;
assert(field);
if (isempty(optarg)) {
r = drop_from_identity(field);
if (r < 0)
return r;
break;
}
r = parse_boolean(optarg);
if (r < 0)
return log_error_errno(r, "Failed to parse %s boolean: %m", field);
r = json_variant_set_field_boolean(&arg_identity_extra, field, r > 0);
if (r < 0)
return log_error_errno(r, "Failed to set %s field: %m", field);
break;
}
case 'P':
r = json_variant_set_field_boolean(&arg_identity_extra, "enforcePasswordPolicy", false);
if (r < 0)
return log_error_errno(r, "Failed to set enforcePasswordPolicy field: %m");
break;
case ARG_DISK_SIZE:
if (isempty(optarg)) {
r = drop_from_identity("diskSize");
if (r < 0)
return r;
r = drop_from_identity("diskSizeRelative");
if (r < 0)
return r;
arg_disk_size = arg_disk_size_relative = UINT64_MAX;
break;
}
r = parse_permille(optarg);
if (r < 0) {
r = parse_size(optarg, 1024, &arg_disk_size);
if (r < 0)
return log_error_errno(SYNTHETIC_ERRNO(EINVAL), "Disk size '%s' not valid.", optarg);
r = drop_from_identity("diskSizeRelative");
if (r < 0)
return r;
r = json_variant_set_field_unsigned(&arg_identity_extra_this_machine, "diskSize", arg_disk_size);
if (r < 0)
return log_error_errno(r, "Failed to set diskSize field: %m");
arg_disk_size_relative = UINT64_MAX;
} else {
/* Normalize to UINT32_MAX == 100% */
arg_disk_size_relative = (uint64_t) r * UINT32_MAX / 1000U;
r = drop_from_identity("diskSize");
if (r < 0)
return r;
r = json_variant_set_field_unsigned(&arg_identity_extra_this_machine, "diskSizeRelative", arg_disk_size_relative);
if (r < 0)
return log_error_errno(r, "Failed to set diskSizeRelative field: %m");
arg_disk_size = UINT64_MAX;
}
break;
case ARG_ACCESS_MODE: {
mode_t mode;
if (isempty(optarg)) {
r = drop_from_identity("accessMode");
if (r < 0)
return r;
break;
}
r = parse_mode(optarg, &mode);
if (r < 0)
return log_error_errno(SYNTHETIC_ERRNO(EINVAL), "Access mode '%s' not valid.", optarg);
r = json_variant_set_field_unsigned(&arg_identity_extra, "accessMode", mode);
if (r < 0)
return log_error_errno(r, "Failed to set access mode field: %m");
break;
}
case ARG_LUKS_DISCARD:
if (isempty(optarg)) {
r = drop_from_identity("luksDiscard");
if (r < 0)
return r;
break;
}
r = parse_boolean(optarg);
if (r < 0)
return log_error_errno(r, "Failed to parse --luks-discard= parameter: %s", optarg);
r = json_variant_set_field_boolean(&arg_identity_extra, "luksDiscard", r);
if (r < 0)
return log_error_errno(r, "Failed to set discard field: %m");
break;
case ARG_LUKS_OFFLINE_DISCARD:
if (isempty(optarg)) {
r = drop_from_identity("luksOfflineDiscard");
if (r < 0)
return r;
break;
}
r = parse_boolean(optarg);
if (r < 0)
return log_error_errno(r, "Failed to parse --luks-offline-discard= parameter: %s", optarg);
r = json_variant_set_field_boolean(&arg_identity_extra, "luksOfflineDiscard", r);
if (r < 0)
return log_error_errno(r, "Failed to set offline discard field: %m");
break;
case ARG_LUKS_VOLUME_KEY_SIZE:
case ARG_LUKS_PBKDF_PARALLEL_THREADS:
case ARG_RATE_LIMIT_BURST: {
const char *field =
c == ARG_LUKS_VOLUME_KEY_SIZE ? "luksVolumeKeySize" :
c == ARG_LUKS_PBKDF_PARALLEL_THREADS ? "luksPbkdfParallelThreads" :
c == ARG_RATE_LIMIT_BURST ? "rateLimitBurst" : NULL;
unsigned n;
assert(field);
if (isempty(optarg)) {
r = drop_from_identity(field);
if (r < 0)
return r;
}
r = safe_atou(optarg, &n);
if (r < 0)
return log_error_errno(r, "Failed to parse %s parameter: %s", field, optarg);
r = json_variant_set_field_unsigned(&arg_identity_extra, field, n);
if (r < 0)
return log_error_errno(r, "Failed to set %s field: %m", field);
break;
}
case ARG_UMASK: {
mode_t m;
if (isempty(optarg)) {
r = drop_from_identity("umask");
if (r < 0)
return r;
break;
}
r = parse_mode(optarg, &m);
if (r < 0)
return log_error_errno(r, "Failed to parse umask: %m");
r = json_variant_set_field_integer(&arg_identity_extra, "umask", m);
if (r < 0)
return log_error_errno(r, "Failed to set umask field: %m");
break;
}
case ARG_SSH_AUTHORIZED_KEYS: {
_cleanup_(json_variant_unrefp) JsonVariant *v = NULL;
_cleanup_(strv_freep) char **l = NULL, **add = NULL;
if (isempty(optarg)) {
r = drop_from_identity("sshAuthorizedKeys");
if (r < 0)
return r;
break;
}
if (optarg[0] == '@') {
_cleanup_fclose_ FILE *f = NULL;
/* If prefixed with '@' read from a file */
f = fopen(optarg+1, "re");
if (!f)
return log_error_errno(errno, "Failed to open '%s': %m", optarg+1);
for (;;) {
_cleanup_free_ char *line = NULL;
r = read_line(f, LONG_LINE_MAX, &line);
if (r < 0)
return log_error_errno(r, "Failed to read from '%s': %m", optarg+1);
if (r == 0)
break;
if (isempty(line))
continue;
if (line[0] == '#')
continue;
r = strv_consume(&add, TAKE_PTR(line));
if (r < 0)
return log_oom();
}
} else {
/* Otherwise, assume it's a literal key. Let's do some superficial checks
* before accept it though. */
if (string_has_cc(optarg, NULL))
return log_error_errno(SYNTHETIC_ERRNO(EINVAL), "Authorized key contains control characters, refusing.");
if (optarg[0] == '#')
return log_error_errno(SYNTHETIC_ERRNO(EINVAL), "Specified key is a comment?");
add = strv_new(optarg);
if (!add)
return log_oom();
}
v = json_variant_ref(json_variant_by_key(arg_identity_extra_privileged, "sshAuthorizedKeys"));
if (v) {
r = json_variant_strv(v, &l);
if (r < 0)
return log_error_errno(r, "Failed to parse SSH authorized keys list: %m");
}
r = strv_extend_strv(&l, add, true);
if (r < 0)
return log_oom();
v = json_variant_unref(v);
r = json_variant_new_array_strv(&v, l);
if (r < 0)
return log_oom();
r = json_variant_set_field(&arg_identity_extra_privileged, "sshAuthorizedKeys", v);
if (r < 0)
return log_error_errno(r, "Failed to set authorized keys: %m");
break;
}
case ARG_NOT_BEFORE:
case ARG_NOT_AFTER:
case 'e': {
const char *field;
usec_t n;
field = c == ARG_NOT_BEFORE ? "notBeforeUSec" :
IN_SET(c, ARG_NOT_AFTER, 'e') ? "notAfterUSec" : NULL;
assert(field);
if (isempty(optarg)) {
r = drop_from_identity(field);
if (r < 0)
return r;
break;
}
/* Note the minor discrepancy regarding -e parsing here: we support that for compat
* reasons, and in the original useradd(8) implementation it accepts dates in the
* format YYYY-MM-DD. Coincidentally, we accept dates formatted like that too, but
* with greater precision. */
r = parse_timestamp(optarg, &n);
if (r < 0)
return log_error_errno(r, "Failed to parse %s parameter: %m", field);
r = json_variant_set_field_unsigned(&arg_identity_extra, field, n);
if (r < 0)
return log_error_errno(r, "Failed to set %s field: %m", field);
break;
}
case ARG_PASSWORD_CHANGE_MIN:
case ARG_PASSWORD_CHANGE_MAX:
case ARG_PASSWORD_CHANGE_WARN:
case ARG_PASSWORD_CHANGE_INACTIVE: {
const char *field;
usec_t n;
field = c == ARG_PASSWORD_CHANGE_MIN ? "passwordChangeMinUSec" :
c == ARG_PASSWORD_CHANGE_MAX ? "passwordChangeMaxUSec" :
c == ARG_PASSWORD_CHANGE_WARN ? "passwordChangeWarnUSec" :
c == ARG_PASSWORD_CHANGE_INACTIVE ? "passwordChangeInactiveUSec" :
NULL;
assert(field);
if (isempty(optarg)) {
r = drop_from_identity(field);
if (r < 0)
return r;
break;
}
r = parse_sec(optarg, &n);
if (r < 0)
return log_error_errno(r, "Failed to parse %s parameter: %m", field);
r = json_variant_set_field_unsigned(&arg_identity_extra, field, n);
if (r < 0)
return log_error_errno(r, "Failed to set %s field: %m", field);
break;
}
case ARG_STORAGE:
case ARG_FS_TYPE:
case ARG_LUKS_CIPHER:
case ARG_LUKS_CIPHER_MODE:
case ARG_LUKS_PBKDF_TYPE:
case ARG_LUKS_PBKDF_HASH_ALGORITHM: {
const char *field =
c == ARG_STORAGE ? "storage" :
c == ARG_FS_TYPE ? "fileSystemType" :
c == ARG_LUKS_CIPHER ? "luksCipher" :
c == ARG_LUKS_CIPHER_MODE ? "luksCipherMode" :
c == ARG_LUKS_PBKDF_TYPE ? "luksPbkdfType" :
c == ARG_LUKS_PBKDF_HASH_ALGORITHM ? "luksPbkdfHashAlgorithm" : NULL;
assert(field);
if (isempty(optarg)) {
r = drop_from_identity(field);
if (r < 0)
return r;
break;
}
if (!string_is_safe(optarg))
return log_error_errno(SYNTHETIC_ERRNO(EINVAL), "Parameter for %s field not valid: %s", field, optarg);
r = json_variant_set_field_string(
IN_SET(c, ARG_STORAGE, ARG_FS_TYPE) ?
&arg_identity_extra_this_machine :
&arg_identity_extra, field, optarg);
if (r < 0)
return log_error_errno(r, "Failed to set %s field: %m", field);
break;
}
case ARG_LUKS_PBKDF_TIME_COST:
case ARG_RATE_LIMIT_INTERVAL:
case ARG_STOP_DELAY: {
const char *field =
c == ARG_LUKS_PBKDF_TIME_COST ? "luksPbkdfTimeCostUSec" :
c == ARG_RATE_LIMIT_INTERVAL ? "rateLimitIntervalUSec" :
c == ARG_STOP_DELAY ? "stopDelayUSec" :
NULL;
usec_t t;
assert(field);
if (isempty(optarg)) {
r = drop_from_identity(field);
if (r < 0)
return r;
break;
}
r = parse_sec(optarg, &t);
if (r < 0)
return log_error_errno(r, "Failed to parse %s field: %s", field, optarg);
r = json_variant_set_field_unsigned(&arg_identity_extra, field, t);
if (r < 0)
return log_error_errno(r, "Failed to set %s field: %m", field);
break;
}
case 'G': {
const char *p = optarg;
if (isempty(p)) {
r = drop_from_identity("memberOf");
if (r < 0)
return r;
break;
}
for (;;) {
_cleanup_(json_variant_unrefp) JsonVariant *mo = NULL;
_cleanup_strv_free_ char **list = NULL;
_cleanup_free_ char *word = NULL;
r = extract_first_word(&p, &word, ",", 0);
if (r < 0)
return log_error_errno(r, "Failed to parse group list: %m");
if (r == 0)
break;
if (!valid_user_group_name(word, 0))
return log_error_errno(SYNTHETIC_ERRNO(EINVAL), "Invalid group name %s.", word);
mo = json_variant_ref(json_variant_by_key(arg_identity_extra, "memberOf"));
r = json_variant_strv(mo, &list);
if (r < 0)
return log_error_errno(r, "Failed to parse group list: %m");
r = strv_extend(&list, word);
if (r < 0)
return log_oom();
strv_sort(list);
strv_uniq(list);
mo = json_variant_unref(mo);
r = json_variant_new_array_strv(&mo, list);
if (r < 0)
return log_error_errno(r, "Failed to create group list JSON: %m");
r = json_variant_set_field(&arg_identity_extra, "memberOf", mo);
if (r < 0)
return log_error_errno(r, "Failed to update group list: %m");
}
break;
}
case ARG_TASKS_MAX: {
uint64_t u;
if (isempty(optarg)) {
r = drop_from_identity("tasksMax");
if (r < 0)
return r;
break;
}
r = safe_atou64(optarg, &u);
if (r < 0)
return log_error_errno(r, "Failed to parse --tasks-max= parameter: %s", optarg);
r = json_variant_set_field_unsigned(&arg_identity_extra, "tasksMax", u);
if (r < 0)
return log_error_errno(r, "Failed to set tasksMax field: %m");
break;
}
case ARG_MEMORY_MAX:
case ARG_MEMORY_HIGH:
case ARG_LUKS_PBKDF_MEMORY_COST: {
const char *field =
c == ARG_MEMORY_MAX ? "memoryMax" :
c == ARG_MEMORY_HIGH ? "memoryHigh" :
c == ARG_LUKS_PBKDF_MEMORY_COST ? "luksPbkdfMemoryCost" : NULL;
uint64_t u;
assert(field);
if (isempty(optarg)) {
r = drop_from_identity(field);
if (r < 0)
return r;
break;
}
r = parse_size(optarg, 1024, &u);
if (r < 0)
return log_error_errno(r, "Failed to parse %s parameter: %s", field, optarg);
r = json_variant_set_field_unsigned(&arg_identity_extra_this_machine, field, u);
if (r < 0)
return log_error_errno(r, "Failed to set %s field: %m", field);
break;
}
case ARG_CPU_WEIGHT:
case ARG_IO_WEIGHT: {
const char *field = c == ARG_CPU_WEIGHT ? "cpuWeight" :
c == ARG_IO_WEIGHT ? "ioWeight" : NULL;
uint64_t u;
assert(field);
if (isempty(optarg)) {
r = drop_from_identity(field);
if (r < 0)
return r;
break;
}
r = safe_atou64(optarg, &u);
if (r < 0)
return log_error_errno(r, "Failed to parse --cpu-weight=/--io-weight= parameter: %s", optarg);
if (!CGROUP_WEIGHT_IS_OK(u))
return log_error_errno(SYNTHETIC_ERRNO(EINVAL), "Weight %" PRIu64 " is out of valid weight range.", u);
r = json_variant_set_field_unsigned(&arg_identity_extra, field, u);
if (r < 0)
return log_error_errno(r, "Failed to set %s field: %m", field);
break;
}
case ARG_PKCS11_TOKEN_URI: {
const char *p;
/* If --pkcs11-token-uri= is specified we always drop everything old */
FOREACH_STRING(p, "pkcs11TokenUri", "pkcs11EncryptedKey") {
r = drop_from_identity(p);
if (r < 0)
return r;
}
if (isempty(optarg)) {
arg_pkcs11_token_uri = strv_free(arg_pkcs11_token_uri);
break;
}
if (!pkcs11_uri_valid(optarg))
return log_error_errno(SYNTHETIC_ERRNO(EINVAL), "Not a valid PKCS#11 URI: %s", optarg);
r = strv_extend(&arg_pkcs11_token_uri, optarg);
if (r < 0)
return r;
strv_uniq(arg_pkcs11_token_uri);
break;
}
case 'j':
arg_json = true;
arg_json_format_flags = JSON_FORMAT_PRETTY_AUTO|JSON_FORMAT_COLOR_AUTO;
break;
case ARG_JSON:
if (streq(optarg, "pretty")) {
arg_json = true;
arg_json_format_flags = JSON_FORMAT_PRETTY|JSON_FORMAT_COLOR_AUTO;
} else if (streq(optarg, "short")) {
arg_json = true;
arg_json_format_flags = JSON_FORMAT_NEWLINE;
} else if (streq(optarg, "off")) {
arg_json = false;
arg_json_format_flags = 0;
} else if (streq(optarg, "help")) {
puts("pretty\n"
"short\n"
"off");
return 0;
} else
return log_error_errno(SYNTHETIC_ERRNO(EINVAL), "Unknown argument to --json=: %s", optarg);
break;
case 'E':
if (arg_export_format == EXPORT_FORMAT_FULL)
arg_export_format = EXPORT_FORMAT_STRIPPED;
else if (arg_export_format == EXPORT_FORMAT_STRIPPED)
arg_export_format = EXPORT_FORMAT_MINIMAL;
else
return log_error_errno(SYNTHETIC_ERRNO(EINVAL), "Specifying -E more than twice is not supported.");
arg_json = true;
if (arg_json_format_flags == 0)
arg_json_format_flags = JSON_FORMAT_PRETTY_AUTO|JSON_FORMAT_COLOR_AUTO;
break;
case ARG_EXPORT_FORMAT:
if (streq(optarg, "full"))
arg_export_format = EXPORT_FORMAT_FULL;
else if (streq(optarg, "stripped"))
arg_export_format = EXPORT_FORMAT_STRIPPED;
else if (streq(optarg, "minimal"))
arg_export_format = EXPORT_FORMAT_MINIMAL;
else if (streq(optarg, "help")) {
puts("full\n"
"stripped\n"
"minimal");
return 0;
}
break;
case ARG_AND_RESIZE:
arg_and_resize = true;
break;
case ARG_AND_CHANGE_PASSWORD:
arg_and_change_password = true;
break;
case '?':
return -EINVAL;
default:
assert_not_reached("Unhandled option");
}
}
if (!strv_isempty(arg_pkcs11_token_uri))
arg_and_change_password = true;
if (arg_disk_size != UINT64_MAX || arg_disk_size_relative != UINT64_MAX)
arg_and_resize = true;
return 1;
}
static int run(int argc, char *argv[]) {
static const Verb verbs[] = {
{ "help", VERB_ANY, VERB_ANY, 0, help },
{ "list", VERB_ANY, 1, VERB_DEFAULT, list_homes },
{ "activate", 2, VERB_ANY, 0, activate_home },
{ "deactivate", 2, VERB_ANY, 0, deactivate_home },
{ "inspect", VERB_ANY, VERB_ANY, 0, inspect_home },
{ "authenticate", VERB_ANY, VERB_ANY, 0, authenticate_home },
{ "create", VERB_ANY, 2, 0, create_home },
{ "remove", 2, VERB_ANY, 0, remove_home },
{ "update", VERB_ANY, 2, 0, update_home },
{ "passwd", VERB_ANY, 2, 0, passwd_home },
{ "resize", 2, 3, 0, resize_home },
{ "lock", 2, VERB_ANY, 0, lock_home },
{ "unlock", 2, VERB_ANY, 0, unlock_home },
{ "with", 2, VERB_ANY, 0, with_home },
{ "lock-all", VERB_ANY, 1, 0, lock_all_homes },
{}
};
int r;
log_setup_cli();
r = parse_argv(argc, argv);
if (r <= 0)
return r;
return dispatch_verb(argc, argv, verbs, NULL);
}
DEFINE_MAIN_FUNCTION(run);
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