1525 lines
53 KiB
C
1525 lines
53 KiB
C
/* SPDX-License-Identifier: LGPL-2.1+ */
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/***
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This file is part of systemd.
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Copyright 2011 Lennart Poettering
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systemd is free software; you can redistribute it and/or modify it
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under the terms of the GNU Lesser General Public License as published by
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the Free Software Foundation; either version 2.1 of the License, or
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(at your option) any later version.
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systemd is distributed in the hope that it will be useful, but
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WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public License
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along with systemd; If not, see <http://www.gnu.org/licenses/>.
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***/
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#include <errno.h>
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#include <string.h>
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#include <sys/mount.h>
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#include <sys/wait.h>
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/* When we include libgen.h because we need dirname() we immediately
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* undefine basename() since libgen.h defines it as a macro to the POSIX
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* version which is really broken. We prefer GNU basename(). */
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#include <libgen.h>
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#undef basename
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#include "alloc-util.h"
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#include "bus-common-errors.h"
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#include "bus-internal.h"
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#include "bus-label.h"
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#include "bus-util.h"
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#include "copy.h"
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#include "env-util.h"
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#include "fd-util.h"
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#include "fileio.h"
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#include "format-util.h"
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#include "fs-util.h"
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#include "in-addr-util.h"
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#include "local-addresses.h"
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#include "machine-dbus.h"
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#include "machine.h"
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#include "mkdir.h"
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#include "path-util.h"
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#include "process-util.h"
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#include "signal-util.h"
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#include "strv.h"
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#include "terminal-util.h"
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#include "user-util.h"
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static int property_get_state(
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sd_bus *bus,
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const char *path,
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const char *interface,
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const char *property,
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sd_bus_message *reply,
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void *userdata,
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sd_bus_error *error) {
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Machine *m = userdata;
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const char *state;
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int r;
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assert(bus);
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assert(reply);
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assert(m);
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state = machine_state_to_string(machine_get_state(m));
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r = sd_bus_message_append_basic(reply, 's', state);
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if (r < 0)
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return r;
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return 1;
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}
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static int property_get_netif(
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sd_bus *bus,
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const char *path,
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const char *interface,
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const char *property,
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sd_bus_message *reply,
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void *userdata,
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sd_bus_error *error) {
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Machine *m = userdata;
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assert(bus);
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assert(reply);
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assert(m);
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assert_cc(sizeof(int) == sizeof(int32_t));
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return sd_bus_message_append_array(reply, 'i', m->netif, m->n_netif * sizeof(int));
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}
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static BUS_DEFINE_PROPERTY_GET_ENUM(property_get_class, machine_class, MachineClass);
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int bus_machine_method_terminate(sd_bus_message *message, void *userdata, sd_bus_error *error) {
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Machine *m = userdata;
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int r;
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assert(message);
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assert(m);
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r = bus_verify_polkit_async(
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message,
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CAP_KILL,
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"org.freedesktop.machine1.manage-machines",
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NULL,
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false,
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UID_INVALID,
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&m->manager->polkit_registry,
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error);
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if (r < 0)
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return r;
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if (r == 0)
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return 1; /* Will call us back */
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r = machine_stop(m);
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if (r < 0)
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return r;
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return sd_bus_reply_method_return(message, NULL);
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}
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int bus_machine_method_kill(sd_bus_message *message, void *userdata, sd_bus_error *error) {
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Machine *m = userdata;
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const char *swho;
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int32_t signo;
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KillWho who;
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int r;
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assert(message);
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assert(m);
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r = sd_bus_message_read(message, "si", &swho, &signo);
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if (r < 0)
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return r;
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if (isempty(swho))
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who = KILL_ALL;
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else {
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who = kill_who_from_string(swho);
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if (who < 0)
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return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Invalid kill parameter '%s'", swho);
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}
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if (!SIGNAL_VALID(signo))
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return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Invalid signal %i", signo);
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r = bus_verify_polkit_async(
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message,
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CAP_KILL,
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"org.freedesktop.machine1.manage-machines",
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NULL,
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false,
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UID_INVALID,
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&m->manager->polkit_registry,
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error);
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if (r < 0)
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return r;
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if (r == 0)
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return 1; /* Will call us back */
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r = machine_kill(m, who, signo);
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if (r < 0)
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return r;
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return sd_bus_reply_method_return(message, NULL);
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}
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int bus_machine_method_get_addresses(sd_bus_message *message, void *userdata, sd_bus_error *error) {
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_cleanup_(sd_bus_message_unrefp) sd_bus_message *reply = NULL;
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Machine *m = userdata;
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int r;
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assert(message);
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assert(m);
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r = sd_bus_message_new_method_return(message, &reply);
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if (r < 0)
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return r;
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r = sd_bus_message_open_container(reply, 'a', "(iay)");
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if (r < 0)
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return r;
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switch (m->class) {
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case MACHINE_HOST: {
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_cleanup_free_ struct local_address *addresses = NULL;
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struct local_address *a;
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int n, i;
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n = local_addresses(NULL, 0, AF_UNSPEC, &addresses);
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if (n < 0)
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return n;
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for (a = addresses, i = 0; i < n; a++, i++) {
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r = sd_bus_message_open_container(reply, 'r', "iay");
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if (r < 0)
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return r;
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r = sd_bus_message_append(reply, "i", addresses[i].family);
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if (r < 0)
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return r;
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r = sd_bus_message_append_array(reply, 'y', &addresses[i].address, FAMILY_ADDRESS_SIZE(addresses[i].family));
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if (r < 0)
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return r;
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r = sd_bus_message_close_container(reply);
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if (r < 0)
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return r;
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}
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break;
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}
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case MACHINE_CONTAINER: {
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_cleanup_close_pair_ int pair[2] = { -1, -1 };
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_cleanup_free_ char *us = NULL, *them = NULL;
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_cleanup_close_ int netns_fd = -1;
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const char *p;
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pid_t child;
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r = readlink_malloc("/proc/self/ns/net", &us);
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if (r < 0)
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return r;
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p = procfs_file_alloca(m->leader, "ns/net");
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r = readlink_malloc(p, &them);
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if (r < 0)
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return r;
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if (streq(us, them))
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return sd_bus_error_setf(error, BUS_ERROR_NO_PRIVATE_NETWORKING, "Machine %s does not use private networking", m->name);
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r = namespace_open(m->leader, NULL, NULL, &netns_fd, NULL, NULL);
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if (r < 0)
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return r;
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if (socketpair(AF_UNIX, SOCK_SEQPACKET, 0, pair) < 0)
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return -errno;
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r = safe_fork("(sd-addr)", FORK_RESET_SIGNALS|FORK_DEATHSIG, &child);
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if (r < 0)
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return sd_bus_error_set_errnof(error, r, "Failed to fork(): %m");
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if (r == 0) {
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_cleanup_free_ struct local_address *addresses = NULL;
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struct local_address *a;
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int i, n;
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pair[0] = safe_close(pair[0]);
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r = namespace_enter(-1, -1, netns_fd, -1, -1);
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if (r < 0)
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_exit(EXIT_FAILURE);
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n = local_addresses(NULL, 0, AF_UNSPEC, &addresses);
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if (n < 0)
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_exit(EXIT_FAILURE);
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for (a = addresses, i = 0; i < n; a++, i++) {
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struct iovec iov[2] = {
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{ .iov_base = &a->family, .iov_len = sizeof(a->family) },
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{ .iov_base = &a->address, .iov_len = FAMILY_ADDRESS_SIZE(a->family) },
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};
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r = writev(pair[1], iov, 2);
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if (r < 0)
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_exit(EXIT_FAILURE);
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}
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pair[1] = safe_close(pair[1]);
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_exit(EXIT_SUCCESS);
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}
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pair[1] = safe_close(pair[1]);
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for (;;) {
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int family;
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ssize_t n;
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union in_addr_union in_addr;
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struct iovec iov[2];
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struct msghdr mh = {
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.msg_iov = iov,
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.msg_iovlen = 2,
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};
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iov[0] = (struct iovec) { .iov_base = &family, .iov_len = sizeof(family) };
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iov[1] = (struct iovec) { .iov_base = &in_addr, .iov_len = sizeof(in_addr) };
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n = recvmsg(pair[0], &mh, 0);
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if (n < 0)
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return -errno;
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if ((size_t) n < sizeof(family))
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break;
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r = sd_bus_message_open_container(reply, 'r', "iay");
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if (r < 0)
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return r;
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r = sd_bus_message_append(reply, "i", family);
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if (r < 0)
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return r;
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switch (family) {
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case AF_INET:
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if (n != sizeof(struct in_addr) + sizeof(family))
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return -EIO;
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r = sd_bus_message_append_array(reply, 'y', &in_addr.in, sizeof(in_addr.in));
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break;
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case AF_INET6:
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if (n != sizeof(struct in6_addr) + sizeof(family))
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return -EIO;
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r = sd_bus_message_append_array(reply, 'y', &in_addr.in6, sizeof(in_addr.in6));
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break;
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}
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if (r < 0)
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return r;
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r = sd_bus_message_close_container(reply);
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if (r < 0)
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return r;
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}
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r = wait_for_terminate_and_check("(sd-addr)", child, 0);
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if (r < 0)
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return sd_bus_error_set_errnof(error, r, "Failed to wait for child: %m");
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if (r != EXIT_SUCCESS)
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return sd_bus_error_setf(error, SD_BUS_ERROR_FAILED, "Child died abnormally.");
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break;
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}
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default:
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return sd_bus_error_setf(error, SD_BUS_ERROR_NOT_SUPPORTED, "Requesting IP address data is only supported on container machines.");
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}
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r = sd_bus_message_close_container(reply);
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if (r < 0)
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return r;
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return sd_bus_send(NULL, reply, NULL);
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}
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#define EXIT_NOT_FOUND 2
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int bus_machine_method_get_os_release(sd_bus_message *message, void *userdata, sd_bus_error *error) {
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_cleanup_strv_free_ char **l = NULL;
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Machine *m = userdata;
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int r;
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assert(message);
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assert(m);
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switch (m->class) {
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case MACHINE_HOST:
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r = load_env_file_pairs(NULL, "/etc/os-release", NULL, &l);
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if (r < 0)
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return r;
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break;
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case MACHINE_CONTAINER: {
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_cleanup_close_ int mntns_fd = -1, root_fd = -1;
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_cleanup_close_pair_ int pair[2] = { -1, -1 };
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_cleanup_fclose_ FILE *f = NULL;
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pid_t child;
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r = namespace_open(m->leader, NULL, &mntns_fd, NULL, NULL, &root_fd);
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if (r < 0)
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return r;
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if (socketpair(AF_UNIX, SOCK_SEQPACKET, 0, pair) < 0)
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return -errno;
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r = safe_fork("(sd-osrel)", FORK_RESET_SIGNALS|FORK_DEATHSIG, &child);
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if (r < 0)
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return sd_bus_error_set_errnof(error, r, "Failed to fork(): %m");
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if (r == 0) {
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int fd = -1;
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pair[0] = safe_close(pair[0]);
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r = namespace_enter(-1, mntns_fd, -1, -1, root_fd);
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if (r < 0)
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_exit(EXIT_FAILURE);
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fd = open("/etc/os-release", O_RDONLY|O_CLOEXEC|O_NOCTTY);
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if (fd < 0 && errno == ENOENT) {
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fd = open("/usr/lib/os-release", O_RDONLY|O_CLOEXEC|O_NOCTTY);
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if (fd < 0 && errno == ENOENT)
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_exit(EXIT_NOT_FOUND);
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}
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if (fd < 0)
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_exit(EXIT_FAILURE);
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r = copy_bytes(fd, pair[1], (uint64_t) -1, 0);
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if (r < 0)
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_exit(EXIT_FAILURE);
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_exit(EXIT_SUCCESS);
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}
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pair[1] = safe_close(pair[1]);
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f = fdopen(pair[0], "re");
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if (!f)
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return -errno;
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pair[0] = -1;
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r = load_env_file_pairs(f, "/etc/os-release", NULL, &l);
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if (r < 0)
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return r;
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r = wait_for_terminate_and_check("(sd-osrel)", child, 0);
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if (r < 0)
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return sd_bus_error_set_errnof(error, r, "Failed to wait for child: %m");
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if (r == EXIT_NOT_FOUND)
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return sd_bus_error_setf(error, SD_BUS_ERROR_FAILED, "Machine does not contain OS release information");
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if (r != EXIT_SUCCESS)
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return sd_bus_error_setf(error, SD_BUS_ERROR_FAILED, "Child died abnormally.");
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break;
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}
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default:
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return sd_bus_error_setf(error, SD_BUS_ERROR_NOT_SUPPORTED, "Requesting OS release data is only supported on container machines.");
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}
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return bus_reply_pair_array(message, l);
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}
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int bus_machine_method_open_pty(sd_bus_message *message, void *userdata, sd_bus_error *error) {
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_cleanup_(sd_bus_message_unrefp) sd_bus_message *reply = NULL;
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_cleanup_free_ char *pty_name = NULL;
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_cleanup_close_ int master = -1;
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Machine *m = userdata;
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int r;
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assert(message);
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assert(m);
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r = bus_verify_polkit_async(
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message,
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CAP_SYS_ADMIN,
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m->class == MACHINE_HOST ? "org.freedesktop.machine1.host-open-pty" : "org.freedesktop.machine1.open-pty",
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NULL,
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false,
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UID_INVALID,
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&m->manager->polkit_registry,
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error);
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if (r < 0)
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return r;
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if (r == 0)
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return 1; /* Will call us back */
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|
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master = machine_openpt(m, O_RDWR|O_NOCTTY|O_CLOEXEC);
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if (master < 0)
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return master;
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r = ptsname_namespace(master, &pty_name);
|
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if (r < 0)
|
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return r;
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r = sd_bus_message_new_method_return(message, &reply);
|
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if (r < 0)
|
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return r;
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r = sd_bus_message_append(reply, "hs", master, pty_name);
|
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if (r < 0)
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|
return r;
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|
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return sd_bus_send(NULL, reply, NULL);
|
|
}
|
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|
|
static int container_bus_new(Machine *m, sd_bus_error *error, sd_bus **ret) {
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int r;
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|
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assert(m);
|
|
assert(ret);
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|
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switch (m->class) {
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case MACHINE_HOST:
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*ret = NULL;
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break;
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|
|
case MACHINE_CONTAINER: {
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_cleanup_(sd_bus_unrefp) sd_bus *bus = NULL;
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char *address;
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|
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r = sd_bus_new(&bus);
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if (r < 0)
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return r;
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|
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if (asprintf(&address, "x-machine-kernel:pid=%1$" PID_PRI ";x-machine-unix:pid=%1$" PID_PRI, m->leader) < 0)
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return -ENOMEM;
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|
|
bus->address = address;
|
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bus->bus_client = true;
|
|
bus->trusted = false;
|
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bus->is_system = true;
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|
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r = sd_bus_start(bus);
|
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if (r == -ENOENT)
|
|
return sd_bus_error_set_errnof(error, r, "There is no system bus in container %s.", m->name);
|
|
if (r < 0)
|
|
return r;
|
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|
|
*ret = bus;
|
|
bus = NULL;
|
|
break;
|
|
}
|
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|
|
default:
|
|
return -EOPNOTSUPP;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
int bus_machine_method_open_login(sd_bus_message *message, void *userdata, sd_bus_error *error) {
|
|
_cleanup_(sd_bus_message_unrefp) sd_bus_message *reply = NULL;
|
|
_cleanup_free_ char *pty_name = NULL;
|
|
_cleanup_(sd_bus_flush_close_unrefp) sd_bus *allocated_bus = NULL;
|
|
_cleanup_close_ int master = -1;
|
|
sd_bus *container_bus = NULL;
|
|
Machine *m = userdata;
|
|
const char *p, *getty;
|
|
int r;
|
|
|
|
assert(message);
|
|
assert(m);
|
|
|
|
r = bus_verify_polkit_async(
|
|
message,
|
|
CAP_SYS_ADMIN,
|
|
m->class == MACHINE_HOST ? "org.freedesktop.machine1.host-login" : "org.freedesktop.machine1.login",
|
|
NULL,
|
|
false,
|
|
UID_INVALID,
|
|
&m->manager->polkit_registry,
|
|
error);
|
|
if (r < 0)
|
|
return r;
|
|
if (r == 0)
|
|
return 1; /* Will call us back */
|
|
|
|
master = machine_openpt(m, O_RDWR|O_NOCTTY|O_CLOEXEC);
|
|
if (master < 0)
|
|
return master;
|
|
|
|
r = ptsname_namespace(master, &pty_name);
|
|
if (r < 0)
|
|
return r;
|
|
|
|
p = path_startswith(pty_name, "/dev/pts/");
|
|
if (!p)
|
|
return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "PTS name %s is invalid", pty_name);
|
|
|
|
r = container_bus_new(m, error, &allocated_bus);
|
|
if (r < 0)
|
|
return r;
|
|
|
|
container_bus = allocated_bus ?: m->manager->bus;
|
|
|
|
getty = strjoina("container-getty@", p, ".service");
|
|
|
|
r = sd_bus_call_method(
|
|
container_bus,
|
|
"org.freedesktop.systemd1",
|
|
"/org/freedesktop/systemd1",
|
|
"org.freedesktop.systemd1.Manager",
|
|
"StartUnit",
|
|
error, NULL,
|
|
"ss", getty, "replace");
|
|
if (r < 0)
|
|
return r;
|
|
|
|
r = sd_bus_message_new_method_return(message, &reply);
|
|
if (r < 0)
|
|
return r;
|
|
|
|
r = sd_bus_message_append(reply, "hs", master, pty_name);
|
|
if (r < 0)
|
|
return r;
|
|
|
|
return sd_bus_send(NULL, reply, NULL);
|
|
}
|
|
|
|
int bus_machine_method_open_shell(sd_bus_message *message, void *userdata, sd_bus_error *error) {
|
|
_cleanup_(sd_bus_message_unrefp) sd_bus_message *reply = NULL, *tm = NULL;
|
|
_cleanup_free_ char *pty_name = NULL;
|
|
_cleanup_(sd_bus_flush_close_unrefp) sd_bus *allocated_bus = NULL;
|
|
sd_bus *container_bus = NULL;
|
|
_cleanup_close_ int master = -1, slave = -1;
|
|
_cleanup_strv_free_ char **env = NULL, **args_wire = NULL, **args = NULL;
|
|
Machine *m = userdata;
|
|
const char *p, *unit, *user, *path, *description, *utmp_id;
|
|
int r;
|
|
|
|
assert(message);
|
|
assert(m);
|
|
|
|
r = sd_bus_message_read(message, "ss", &user, &path);
|
|
if (r < 0)
|
|
return r;
|
|
user = empty_to_null(user);
|
|
r = sd_bus_message_read_strv(message, &args_wire);
|
|
if (r < 0)
|
|
return r;
|
|
if (isempty(path)) {
|
|
path = "/bin/sh";
|
|
|
|
args = new0(char*, 3 + 1);
|
|
if (!args)
|
|
return -ENOMEM;
|
|
args[0] = strdup("sh");
|
|
if (!args[0])
|
|
return -ENOMEM;
|
|
args[1] = strdup("-c");
|
|
if (!args[1])
|
|
return -ENOMEM;
|
|
r = asprintf(&args[2],
|
|
"shell=$(getent passwd %s 2>/dev/null | { IFS=: read _ _ _ _ _ _ x; echo \"$x\"; })\n"\
|
|
"exec \"${shell:-/bin/sh}\" -l", /* -l is means --login */
|
|
isempty(user) ? "root" : user);
|
|
if (r < 0) {
|
|
args[2] = NULL;
|
|
return -ENOMEM;
|
|
}
|
|
} else {
|
|
if (!path_is_absolute(path))
|
|
return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Specified path '%s' is not absolute", path);
|
|
args = args_wire;
|
|
args_wire = NULL;
|
|
if (strv_isempty(args)) {
|
|
args = strv_free(args);
|
|
|
|
args = strv_new(path, NULL);
|
|
if (!args)
|
|
return -ENOMEM;
|
|
}
|
|
}
|
|
|
|
r = sd_bus_message_read_strv(message, &env);
|
|
if (r < 0)
|
|
return r;
|
|
if (!strv_env_is_valid(env))
|
|
return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Invalid environment assignments");
|
|
|
|
r = bus_verify_polkit_async(
|
|
message,
|
|
CAP_SYS_ADMIN,
|
|
m->class == MACHINE_HOST ? "org.freedesktop.machine1.host-shell" : "org.freedesktop.machine1.shell",
|
|
NULL,
|
|
false,
|
|
UID_INVALID,
|
|
&m->manager->polkit_registry,
|
|
error);
|
|
if (r < 0)
|
|
return r;
|
|
if (r == 0)
|
|
return 1; /* Will call us back */
|
|
|
|
master = machine_openpt(m, O_RDWR|O_NOCTTY|O_CLOEXEC);
|
|
if (master < 0)
|
|
return master;
|
|
|
|
r = ptsname_namespace(master, &pty_name);
|
|
if (r < 0)
|
|
return r;
|
|
|
|
p = path_startswith(pty_name, "/dev/pts/");
|
|
assert(p);
|
|
|
|
slave = machine_open_terminal(m, pty_name, O_RDWR|O_NOCTTY|O_CLOEXEC);
|
|
if (slave < 0)
|
|
return slave;
|
|
|
|
utmp_id = path_startswith(pty_name, "/dev/");
|
|
assert(utmp_id);
|
|
|
|
r = container_bus_new(m, error, &allocated_bus);
|
|
if (r < 0)
|
|
return r;
|
|
|
|
container_bus = allocated_bus ?: m->manager->bus;
|
|
|
|
r = sd_bus_message_new_method_call(
|
|
container_bus,
|
|
&tm,
|
|
"org.freedesktop.systemd1",
|
|
"/org/freedesktop/systemd1",
|
|
"org.freedesktop.systemd1.Manager",
|
|
"StartTransientUnit");
|
|
if (r < 0)
|
|
return r;
|
|
|
|
/* Name and mode */
|
|
unit = strjoina("container-shell@", p, ".service");
|
|
r = sd_bus_message_append(tm, "ss", unit, "fail");
|
|
if (r < 0)
|
|
return r;
|
|
|
|
/* Properties */
|
|
r = sd_bus_message_open_container(tm, 'a', "(sv)");
|
|
if (r < 0)
|
|
return r;
|
|
|
|
description = strjoina("Shell for User ", isempty(user) ? "root" : user);
|
|
r = sd_bus_message_append(tm,
|
|
"(sv)(sv)(sv)(sv)(sv)(sv)(sv)(sv)(sv)(sv)(sv)(sv)",
|
|
"Description", "s", description,
|
|
"StandardInputFileDescriptor", "h", slave,
|
|
"StandardOutputFileDescriptor", "h", slave,
|
|
"StandardErrorFileDescriptor", "h", slave,
|
|
"SendSIGHUP", "b", true,
|
|
"IgnoreSIGPIPE", "b", false,
|
|
"KillMode", "s", "mixed",
|
|
"TTYReset", "b", true,
|
|
"UtmpIdentifier", "s", utmp_id,
|
|
"UtmpMode", "s", "user",
|
|
"PAMName", "s", "login",
|
|
"WorkingDirectory", "s", "-~");
|
|
if (r < 0)
|
|
return r;
|
|
|
|
r = sd_bus_message_append(tm, "(sv)", "User", "s", isempty(user) ? "root" : user);
|
|
if (r < 0)
|
|
return r;
|
|
|
|
if (!strv_isempty(env)) {
|
|
r = sd_bus_message_open_container(tm, 'r', "sv");
|
|
if (r < 0)
|
|
return r;
|
|
|
|
r = sd_bus_message_append(tm, "s", "Environment");
|
|
if (r < 0)
|
|
return r;
|
|
|
|
r = sd_bus_message_open_container(tm, 'v', "as");
|
|
if (r < 0)
|
|
return r;
|
|
|
|
r = sd_bus_message_append_strv(tm, env);
|
|
if (r < 0)
|
|
return r;
|
|
|
|
r = sd_bus_message_close_container(tm);
|
|
if (r < 0)
|
|
return r;
|
|
|
|
r = sd_bus_message_close_container(tm);
|
|
if (r < 0)
|
|
return r;
|
|
}
|
|
|
|
/* Exec container */
|
|
r = sd_bus_message_open_container(tm, 'r', "sv");
|
|
if (r < 0)
|
|
return r;
|
|
|
|
r = sd_bus_message_append(tm, "s", "ExecStart");
|
|
if (r < 0)
|
|
return r;
|
|
|
|
r = sd_bus_message_open_container(tm, 'v', "a(sasb)");
|
|
if (r < 0)
|
|
return r;
|
|
|
|
r = sd_bus_message_open_container(tm, 'a', "(sasb)");
|
|
if (r < 0)
|
|
return r;
|
|
|
|
r = sd_bus_message_open_container(tm, 'r', "sasb");
|
|
if (r < 0)
|
|
return r;
|
|
|
|
r = sd_bus_message_append(tm, "s", path);
|
|
if (r < 0)
|
|
return r;
|
|
|
|
r = sd_bus_message_append_strv(tm, args);
|
|
if (r < 0)
|
|
return r;
|
|
|
|
r = sd_bus_message_append(tm, "b", true);
|
|
if (r < 0)
|
|
return r;
|
|
|
|
r = sd_bus_message_close_container(tm);
|
|
if (r < 0)
|
|
return r;
|
|
|
|
r = sd_bus_message_close_container(tm);
|
|
if (r < 0)
|
|
return r;
|
|
|
|
r = sd_bus_message_close_container(tm);
|
|
if (r < 0)
|
|
return r;
|
|
|
|
r = sd_bus_message_close_container(tm);
|
|
if (r < 0)
|
|
return r;
|
|
|
|
r = sd_bus_message_close_container(tm);
|
|
if (r < 0)
|
|
return r;
|
|
|
|
/* Auxiliary units */
|
|
r = sd_bus_message_append(tm, "a(sa(sv))", 0);
|
|
if (r < 0)
|
|
return r;
|
|
|
|
r = sd_bus_call(container_bus, tm, 0, error, NULL);
|
|
if (r < 0)
|
|
return r;
|
|
|
|
slave = safe_close(slave);
|
|
|
|
r = sd_bus_message_new_method_return(message, &reply);
|
|
if (r < 0)
|
|
return r;
|
|
|
|
r = sd_bus_message_append(reply, "hs", master, pty_name);
|
|
if (r < 0)
|
|
return r;
|
|
|
|
return sd_bus_send(NULL, reply, NULL);
|
|
}
|
|
|
|
int bus_machine_method_bind_mount(sd_bus_message *message, void *userdata, sd_bus_error *error) {
|
|
_cleanup_close_pair_ int errno_pipe_fd[2] = { -1, -1 };
|
|
char mount_slave[] = "/tmp/propagate.XXXXXX", *mount_tmp, *mount_outside, *p;
|
|
bool mount_slave_created = false, mount_slave_mounted = false,
|
|
mount_tmp_created = false, mount_tmp_mounted = false,
|
|
mount_outside_created = false, mount_outside_mounted = false;
|
|
_cleanup_free_ char *chased_src = NULL;
|
|
int read_only, make_file_or_directory;
|
|
const char *dest, *src;
|
|
Machine *m = userdata;
|
|
struct stat st;
|
|
pid_t child;
|
|
uid_t uid;
|
|
int r;
|
|
|
|
assert(message);
|
|
assert(m);
|
|
|
|
if (m->class != MACHINE_CONTAINER)
|
|
return sd_bus_error_setf(error, SD_BUS_ERROR_NOT_SUPPORTED, "Bind mounting is only supported on container machines.");
|
|
|
|
r = sd_bus_message_read(message, "ssbb", &src, &dest, &read_only, &make_file_or_directory);
|
|
if (r < 0)
|
|
return r;
|
|
|
|
if (!path_is_absolute(src) || !path_is_normalized(src))
|
|
return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Source path must be absolute and not contain ../.");
|
|
|
|
if (isempty(dest))
|
|
dest = src;
|
|
else if (!path_is_absolute(dest) || !path_is_normalized(dest))
|
|
return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Destination path must be absolute and not contain ../.");
|
|
|
|
r = bus_verify_polkit_async(
|
|
message,
|
|
CAP_SYS_ADMIN,
|
|
"org.freedesktop.machine1.manage-machines",
|
|
NULL,
|
|
false,
|
|
UID_INVALID,
|
|
&m->manager->polkit_registry,
|
|
error);
|
|
if (r < 0)
|
|
return r;
|
|
if (r == 0)
|
|
return 1; /* Will call us back */
|
|
|
|
r = machine_get_uid_shift(m, &uid);
|
|
if (r < 0)
|
|
return r;
|
|
if (uid != 0)
|
|
return sd_bus_error_setf(error, SD_BUS_ERROR_NOT_SUPPORTED, "Can't bind mount on container with user namespacing applied.");
|
|
|
|
/* One day, when bind mounting /proc/self/fd/n works across
|
|
* namespace boundaries we should rework this logic to make
|
|
* use of it... */
|
|
|
|
p = strjoina("/run/systemd/nspawn/propagate/", m->name, "/");
|
|
if (laccess(p, F_OK) < 0)
|
|
return sd_bus_error_setf(error, SD_BUS_ERROR_NOT_SUPPORTED, "Container does not allow propagation of mount points.");
|
|
|
|
r = chase_symlinks(src, NULL, 0, &chased_src);
|
|
if (r < 0)
|
|
return sd_bus_error_set_errnof(error, r, "Failed to resolve source path: %m");
|
|
|
|
if (lstat(chased_src, &st) < 0)
|
|
return sd_bus_error_set_errnof(error, errno, "Failed to stat() source path: %m");
|
|
if (S_ISLNK(st.st_mode)) /* This shouldn't really happen, given that we just chased the symlinks above, but let's better be safe… */
|
|
return sd_bus_error_setf(error, SD_BUS_ERROR_NOT_SUPPORTED, "Source directory can't be a symbolic link");
|
|
|
|
/* Our goal is to install a new bind mount into the container,
|
|
possibly read-only. This is irritatingly complex
|
|
unfortunately, currently.
|
|
|
|
First, we start by creating a private playground in /tmp,
|
|
that we can mount MS_SLAVE. (Which is necessary, since
|
|
MS_MOVE cannot be applied to mounts with MS_SHARED parent
|
|
mounts.) */
|
|
|
|
if (!mkdtemp(mount_slave))
|
|
return sd_bus_error_set_errnof(error, errno, "Failed to create playground %s: %m", mount_slave);
|
|
|
|
mount_slave_created = true;
|
|
|
|
if (mount(mount_slave, mount_slave, NULL, MS_BIND, NULL) < 0) {
|
|
r = sd_bus_error_set_errnof(error, errno, "Failed to make bind mount %s: %m", mount_slave);
|
|
goto finish;
|
|
}
|
|
|
|
mount_slave_mounted = true;
|
|
|
|
if (mount(NULL, mount_slave, NULL, MS_SLAVE, NULL) < 0) {
|
|
r = sd_bus_error_set_errnof(error, errno, "Failed to remount slave %s: %m", mount_slave);
|
|
goto finish;
|
|
}
|
|
|
|
/* Second, we mount the source file or directory to a directory inside of our MS_SLAVE playground. */
|
|
mount_tmp = strjoina(mount_slave, "/mount");
|
|
if (S_ISDIR(st.st_mode))
|
|
r = mkdir_errno_wrapper(mount_tmp, 0700);
|
|
else
|
|
r = touch(mount_tmp);
|
|
if (r < 0) {
|
|
sd_bus_error_set_errnof(error, errno, "Failed to create temporary mount point %s: %m", mount_tmp);
|
|
goto finish;
|
|
}
|
|
|
|
mount_tmp_created = true;
|
|
|
|
if (mount(chased_src, mount_tmp, NULL, MS_BIND, NULL) < 0) {
|
|
r = sd_bus_error_set_errnof(error, errno, "Failed to mount %s: %m", chased_src);
|
|
goto finish;
|
|
}
|
|
|
|
mount_tmp_mounted = true;
|
|
|
|
/* Third, we remount the new bind mount read-only if requested. */
|
|
if (read_only)
|
|
if (mount(NULL, mount_tmp, NULL, MS_BIND|MS_REMOUNT|MS_RDONLY, NULL) < 0) {
|
|
r = sd_bus_error_set_errnof(error, errno, "Failed to remount read-only %s: %m", mount_tmp);
|
|
goto finish;
|
|
}
|
|
|
|
/* Fourth, we move the new bind mount into the propagation directory. This way it will appear there read-only
|
|
* right-away. */
|
|
|
|
mount_outside = strjoina("/run/systemd/nspawn/propagate/", m->name, "/XXXXXX");
|
|
if (S_ISDIR(st.st_mode))
|
|
r = mkdtemp(mount_outside) ? 0 : -errno;
|
|
else {
|
|
r = mkostemp_safe(mount_outside);
|
|
safe_close(r);
|
|
}
|
|
if (r < 0) {
|
|
sd_bus_error_set_errnof(error, errno, "Cannot create propagation file or directory %s: %m", mount_outside);
|
|
goto finish;
|
|
}
|
|
|
|
mount_outside_created = true;
|
|
|
|
if (mount(mount_tmp, mount_outside, NULL, MS_MOVE, NULL) < 0) {
|
|
r = sd_bus_error_set_errnof(error, errno, "Failed to move %s to %s: %m", mount_tmp, mount_outside);
|
|
goto finish;
|
|
}
|
|
|
|
mount_outside_mounted = true;
|
|
mount_tmp_mounted = false;
|
|
|
|
if (S_ISDIR(st.st_mode))
|
|
(void) rmdir(mount_tmp);
|
|
else
|
|
(void) unlink(mount_tmp);
|
|
mount_tmp_created = false;
|
|
|
|
(void) umount(mount_slave);
|
|
mount_slave_mounted = false;
|
|
|
|
(void) rmdir(mount_slave);
|
|
mount_slave_created = false;
|
|
|
|
if (pipe2(errno_pipe_fd, O_CLOEXEC|O_NONBLOCK) < 0) {
|
|
r = sd_bus_error_set_errnof(error, errno, "Failed to create pipe: %m");
|
|
goto finish;
|
|
}
|
|
|
|
r = safe_fork("(sd-bindmnt)", FORK_RESET_SIGNALS, &child);
|
|
if (r < 0) {
|
|
sd_bus_error_set_errnof(error, r, "Failed to fork(): %m");
|
|
goto finish;
|
|
}
|
|
if (r == 0) {
|
|
const char *mount_inside;
|
|
int mntfd;
|
|
const char *q;
|
|
|
|
errno_pipe_fd[0] = safe_close(errno_pipe_fd[0]);
|
|
|
|
q = procfs_file_alloca(m->leader, "ns/mnt");
|
|
mntfd = open(q, O_RDONLY|O_NOCTTY|O_CLOEXEC);
|
|
if (mntfd < 0) {
|
|
r = log_error_errno(errno, "Failed to open mount namespace of leader: %m");
|
|
goto child_fail;
|
|
}
|
|
|
|
if (setns(mntfd, CLONE_NEWNS) < 0) {
|
|
r = log_error_errno(errno, "Failed to join namespace of leader: %m");
|
|
goto child_fail;
|
|
}
|
|
|
|
if (make_file_or_directory) {
|
|
if (S_ISDIR(st.st_mode))
|
|
(void) mkdir_p(dest, 0755);
|
|
else {
|
|
(void) mkdir_parents(dest, 0755);
|
|
safe_close(open(dest, O_CREAT|O_EXCL|O_WRONLY|O_CLOEXEC|O_NOCTTY, 0600));
|
|
}
|
|
}
|
|
|
|
/* Fifth, move the mount to the right place inside */
|
|
mount_inside = strjoina("/run/systemd/nspawn/incoming/", basename(mount_outside));
|
|
if (mount(mount_inside, dest, NULL, MS_MOVE, NULL) < 0) {
|
|
r = log_error_errno(errno, "Failed to mount: %m");
|
|
goto child_fail;
|
|
}
|
|
|
|
_exit(EXIT_SUCCESS);
|
|
|
|
child_fail:
|
|
(void) write(errno_pipe_fd[1], &r, sizeof(r));
|
|
errno_pipe_fd[1] = safe_close(errno_pipe_fd[1]);
|
|
|
|
_exit(EXIT_FAILURE);
|
|
}
|
|
|
|
errno_pipe_fd[1] = safe_close(errno_pipe_fd[1]);
|
|
|
|
r = wait_for_terminate_and_check("(sd-bindmnt)", child, 0);
|
|
if (r < 0) {
|
|
r = sd_bus_error_set_errnof(error, r, "Failed to wait for child: %m");
|
|
goto finish;
|
|
}
|
|
if (r != EXIT_SUCCESS) {
|
|
if (read(errno_pipe_fd[0], &r, sizeof(r)) == sizeof(r))
|
|
r = sd_bus_error_set_errnof(error, r, "Failed to mount: %m");
|
|
else
|
|
r = sd_bus_error_setf(error, SD_BUS_ERROR_FAILED, "Child failed.");
|
|
goto finish;
|
|
}
|
|
|
|
r = sd_bus_reply_method_return(message, NULL);
|
|
|
|
finish:
|
|
if (mount_outside_mounted)
|
|
(void) umount(mount_outside);
|
|
if (mount_outside_created) {
|
|
if (S_ISDIR(st.st_mode))
|
|
(void) rmdir(mount_outside);
|
|
else
|
|
(void) unlink(mount_outside);
|
|
}
|
|
|
|
if (mount_tmp_mounted)
|
|
(void) umount(mount_tmp);
|
|
if (mount_tmp_created) {
|
|
if (S_ISDIR(st.st_mode))
|
|
(void) rmdir(mount_tmp);
|
|
else
|
|
(void) unlink(mount_tmp);
|
|
}
|
|
|
|
if (mount_slave_mounted)
|
|
(void) umount(mount_slave);
|
|
if (mount_slave_created)
|
|
(void) rmdir(mount_slave);
|
|
|
|
return r;
|
|
}
|
|
|
|
int bus_machine_method_copy(sd_bus_message *message, void *userdata, sd_bus_error *error) {
|
|
const char *src, *dest, *host_path, *container_path, *host_basename, *host_dirname, *container_basename, *container_dirname;
|
|
_cleanup_close_pair_ int errno_pipe_fd[2] = { -1, -1 };
|
|
CopyFlags copy_flags = COPY_REFLINK|COPY_MERGE;
|
|
_cleanup_close_ int hostfd = -1;
|
|
Machine *m = userdata;
|
|
bool copy_from;
|
|
pid_t child;
|
|
uid_t uid_shift;
|
|
char *t;
|
|
int r;
|
|
|
|
assert(message);
|
|
assert(m);
|
|
|
|
if (m->manager->n_operations >= OPERATIONS_MAX)
|
|
return sd_bus_error_setf(error, SD_BUS_ERROR_LIMITS_EXCEEDED, "Too many ongoing copies.");
|
|
|
|
if (m->class != MACHINE_CONTAINER)
|
|
return sd_bus_error_setf(error, SD_BUS_ERROR_NOT_SUPPORTED, "Copying files is only supported on container machines.");
|
|
|
|
r = sd_bus_message_read(message, "ss", &src, &dest);
|
|
if (r < 0)
|
|
return r;
|
|
|
|
if (!path_is_absolute(src))
|
|
return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Source path must be absolute.");
|
|
|
|
if (isempty(dest))
|
|
dest = src;
|
|
else if (!path_is_absolute(dest))
|
|
return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Destination path must be absolute.");
|
|
|
|
r = bus_verify_polkit_async(
|
|
message,
|
|
CAP_SYS_ADMIN,
|
|
"org.freedesktop.machine1.manage-machines",
|
|
NULL,
|
|
false,
|
|
UID_INVALID,
|
|
&m->manager->polkit_registry,
|
|
error);
|
|
if (r < 0)
|
|
return r;
|
|
if (r == 0)
|
|
return 1; /* Will call us back */
|
|
|
|
r = machine_get_uid_shift(m, &uid_shift);
|
|
if (r < 0)
|
|
return r;
|
|
|
|
copy_from = strstr(sd_bus_message_get_member(message), "CopyFrom");
|
|
|
|
if (copy_from) {
|
|
container_path = src;
|
|
host_path = dest;
|
|
} else {
|
|
host_path = src;
|
|
container_path = dest;
|
|
}
|
|
|
|
host_basename = basename(host_path);
|
|
t = strdupa(host_path);
|
|
host_dirname = dirname(t);
|
|
|
|
container_basename = basename(container_path);
|
|
t = strdupa(container_path);
|
|
container_dirname = dirname(t);
|
|
|
|
hostfd = open(host_dirname, O_CLOEXEC|O_RDONLY|O_NOCTTY|O_DIRECTORY);
|
|
if (hostfd < 0)
|
|
return sd_bus_error_set_errnof(error, errno, "Failed to open host directory %s: %m", host_dirname);
|
|
|
|
if (pipe2(errno_pipe_fd, O_CLOEXEC|O_NONBLOCK) < 0)
|
|
return sd_bus_error_set_errnof(error, errno, "Failed to create pipe: %m");
|
|
|
|
r = safe_fork("(sd-copy)", FORK_RESET_SIGNALS, &child);
|
|
if (r < 0)
|
|
return sd_bus_error_set_errnof(error, r, "Failed to fork(): %m");
|
|
if (r == 0) {
|
|
int containerfd;
|
|
const char *q;
|
|
int mntfd;
|
|
|
|
errno_pipe_fd[0] = safe_close(errno_pipe_fd[0]);
|
|
|
|
q = procfs_file_alloca(m->leader, "ns/mnt");
|
|
mntfd = open(q, O_RDONLY|O_NOCTTY|O_CLOEXEC);
|
|
if (mntfd < 0) {
|
|
r = log_error_errno(errno, "Failed to open mount namespace of leader: %m");
|
|
goto child_fail;
|
|
}
|
|
|
|
if (setns(mntfd, CLONE_NEWNS) < 0) {
|
|
r = log_error_errno(errno, "Failed to join namespace of leader: %m");
|
|
goto child_fail;
|
|
}
|
|
|
|
containerfd = open(container_dirname, O_CLOEXEC|O_RDONLY|O_NOCTTY|O_DIRECTORY);
|
|
if (containerfd < 0) {
|
|
r = log_error_errno(errno, "Failed to open destination directory: %m");
|
|
goto child_fail;
|
|
}
|
|
|
|
/* Run the actual copy operation. Note that when an UID shift is set we'll either clamp the UID/GID to
|
|
* 0 or to the actual UID shift depending on the direction we copy. If no UID shift is set we'll copy
|
|
* the UID/GIDs as they are. */
|
|
if (copy_from)
|
|
r = copy_tree_at(containerfd, container_basename, hostfd, host_basename, uid_shift == 0 ? UID_INVALID : 0, uid_shift == 0 ? GID_INVALID : 0, copy_flags);
|
|
else
|
|
r = copy_tree_at(hostfd, host_basename, containerfd, container_basename, uid_shift == 0 ? UID_INVALID : uid_shift, uid_shift == 0 ? GID_INVALID : uid_shift, copy_flags);
|
|
|
|
hostfd = safe_close(hostfd);
|
|
containerfd = safe_close(containerfd);
|
|
|
|
if (r < 0) {
|
|
r = log_error_errno(r, "Failed to copy tree: %m");
|
|
goto child_fail;
|
|
}
|
|
|
|
_exit(EXIT_SUCCESS);
|
|
|
|
child_fail:
|
|
(void) write(errno_pipe_fd[1], &r, sizeof(r));
|
|
_exit(EXIT_FAILURE);
|
|
}
|
|
|
|
errno_pipe_fd[1] = safe_close(errno_pipe_fd[1]);
|
|
|
|
/* Copying might take a while, hence install a watch on the child, and return */
|
|
|
|
r = operation_new(m->manager, m, child, message, errno_pipe_fd[0], NULL);
|
|
if (r < 0) {
|
|
(void) sigkill_wait(child);
|
|
return r;
|
|
}
|
|
errno_pipe_fd[0] = -1;
|
|
|
|
return 1;
|
|
}
|
|
|
|
int bus_machine_method_open_root_directory(sd_bus_message *message, void *userdata, sd_bus_error *error) {
|
|
_cleanup_close_ int fd = -1;
|
|
Machine *m = userdata;
|
|
int r;
|
|
|
|
assert(message);
|
|
assert(m);
|
|
|
|
r = bus_verify_polkit_async(
|
|
message,
|
|
CAP_SYS_ADMIN,
|
|
"org.freedesktop.machine1.manage-machines",
|
|
NULL,
|
|
false,
|
|
UID_INVALID,
|
|
&m->manager->polkit_registry,
|
|
error);
|
|
if (r < 0)
|
|
return r;
|
|
if (r == 0)
|
|
return 1; /* Will call us back */
|
|
|
|
switch (m->class) {
|
|
|
|
case MACHINE_HOST:
|
|
fd = open("/", O_RDONLY|O_CLOEXEC|O_DIRECTORY);
|
|
if (fd < 0)
|
|
return -errno;
|
|
|
|
break;
|
|
|
|
case MACHINE_CONTAINER: {
|
|
_cleanup_close_ int mntns_fd = -1, root_fd = -1;
|
|
_cleanup_close_pair_ int pair[2] = { -1, -1 };
|
|
pid_t child;
|
|
|
|
r = namespace_open(m->leader, NULL, &mntns_fd, NULL, NULL, &root_fd);
|
|
if (r < 0)
|
|
return r;
|
|
|
|
if (socketpair(AF_UNIX, SOCK_DGRAM, 0, pair) < 0)
|
|
return -errno;
|
|
|
|
r = safe_fork("(sd-openroot)", FORK_RESET_SIGNALS|FORK_DEATHSIG, &child);
|
|
if (r < 0)
|
|
return sd_bus_error_set_errnof(error, r, "Failed to fork(): %m");
|
|
if (r == 0) {
|
|
_cleanup_close_ int dfd = -1;
|
|
|
|
pair[0] = safe_close(pair[0]);
|
|
|
|
r = namespace_enter(-1, mntns_fd, -1, -1, root_fd);
|
|
if (r < 0)
|
|
_exit(EXIT_FAILURE);
|
|
|
|
dfd = open("/", O_RDONLY|O_CLOEXEC|O_DIRECTORY);
|
|
if (dfd < 0)
|
|
_exit(EXIT_FAILURE);
|
|
|
|
r = send_one_fd(pair[1], dfd, 0);
|
|
dfd = safe_close(dfd);
|
|
if (r < 0)
|
|
_exit(EXIT_FAILURE);
|
|
|
|
_exit(EXIT_SUCCESS);
|
|
}
|
|
|
|
pair[1] = safe_close(pair[1]);
|
|
|
|
r = wait_for_terminate_and_check("(sd-openroot)", child, 0);
|
|
if (r < 0)
|
|
return sd_bus_error_set_errnof(error, r, "Failed to wait for child: %m");
|
|
if (r != EXIT_SUCCESS)
|
|
return sd_bus_error_setf(error, SD_BUS_ERROR_FAILED, "Child died abnormally.");
|
|
|
|
fd = receive_one_fd(pair[0], MSG_DONTWAIT);
|
|
if (fd < 0)
|
|
return fd;
|
|
|
|
break;
|
|
}
|
|
|
|
default:
|
|
return sd_bus_error_setf(error, SD_BUS_ERROR_NOT_SUPPORTED, "Opening the root directory is only supported on container machines.");
|
|
}
|
|
|
|
return sd_bus_reply_method_return(message, "h", fd);
|
|
}
|
|
|
|
int bus_machine_method_get_uid_shift(sd_bus_message *message, void *userdata, sd_bus_error *error) {
|
|
Machine *m = userdata;
|
|
uid_t shift = 0;
|
|
int r;
|
|
|
|
assert(message);
|
|
assert(m);
|
|
|
|
/* You wonder why this is a method and not a property? Well, properties are not supposed to return errors, but
|
|
* we kinda have to for this. */
|
|
|
|
if (m->class == MACHINE_HOST)
|
|
return sd_bus_reply_method_return(message, "u", UINT32_C(0));
|
|
|
|
if (m->class != MACHINE_CONTAINER)
|
|
return sd_bus_error_setf(error, SD_BUS_ERROR_NOT_SUPPORTED, "UID/GID shift may only be determined for container machines.");
|
|
|
|
r = machine_get_uid_shift(m, &shift);
|
|
if (r == -ENXIO)
|
|
return sd_bus_error_setf(error, SD_BUS_ERROR_NOT_SUPPORTED, "Machine %s uses a complex UID/GID mapping, cannot determine shift", m->name);
|
|
if (r < 0)
|
|
return r;
|
|
|
|
return sd_bus_reply_method_return(message, "u", (uint32_t) shift);
|
|
}
|
|
|
|
const sd_bus_vtable machine_vtable[] = {
|
|
SD_BUS_VTABLE_START(0),
|
|
SD_BUS_PROPERTY("Name", "s", NULL, offsetof(Machine, name), SD_BUS_VTABLE_PROPERTY_CONST),
|
|
SD_BUS_PROPERTY("Id", "ay", bus_property_get_id128, offsetof(Machine, id), SD_BUS_VTABLE_PROPERTY_CONST),
|
|
BUS_PROPERTY_DUAL_TIMESTAMP("Timestamp", offsetof(Machine, timestamp), SD_BUS_VTABLE_PROPERTY_CONST),
|
|
SD_BUS_PROPERTY("Service", "s", NULL, offsetof(Machine, service), SD_BUS_VTABLE_PROPERTY_CONST),
|
|
SD_BUS_PROPERTY("Unit", "s", NULL, offsetof(Machine, unit), SD_BUS_VTABLE_PROPERTY_CONST),
|
|
SD_BUS_PROPERTY("Scope", "s", NULL, offsetof(Machine, unit), SD_BUS_VTABLE_PROPERTY_CONST|SD_BUS_VTABLE_HIDDEN),
|
|
SD_BUS_PROPERTY("Leader", "u", NULL, offsetof(Machine, leader), SD_BUS_VTABLE_PROPERTY_CONST),
|
|
SD_BUS_PROPERTY("Class", "s", property_get_class, offsetof(Machine, class), SD_BUS_VTABLE_PROPERTY_CONST),
|
|
SD_BUS_PROPERTY("RootDirectory", "s", NULL, offsetof(Machine, root_directory), SD_BUS_VTABLE_PROPERTY_CONST),
|
|
SD_BUS_PROPERTY("NetworkInterfaces", "ai", property_get_netif, 0, SD_BUS_VTABLE_PROPERTY_CONST),
|
|
SD_BUS_PROPERTY("State", "s", property_get_state, 0, 0),
|
|
SD_BUS_METHOD("Terminate", NULL, NULL, bus_machine_method_terminate, SD_BUS_VTABLE_UNPRIVILEGED),
|
|
SD_BUS_METHOD("Kill", "si", NULL, bus_machine_method_kill, SD_BUS_VTABLE_UNPRIVILEGED),
|
|
SD_BUS_METHOD("GetAddresses", NULL, "a(iay)", bus_machine_method_get_addresses, SD_BUS_VTABLE_UNPRIVILEGED),
|
|
SD_BUS_METHOD("GetOSRelease", NULL, "a{ss}", bus_machine_method_get_os_release, SD_BUS_VTABLE_UNPRIVILEGED),
|
|
SD_BUS_METHOD("GetUIDShift", NULL, "u", bus_machine_method_get_uid_shift, SD_BUS_VTABLE_UNPRIVILEGED),
|
|
SD_BUS_METHOD("OpenPTY", NULL, "hs", bus_machine_method_open_pty, SD_BUS_VTABLE_UNPRIVILEGED),
|
|
SD_BUS_METHOD("OpenLogin", NULL, "hs", bus_machine_method_open_login, SD_BUS_VTABLE_UNPRIVILEGED),
|
|
SD_BUS_METHOD("OpenShell", "ssasas", "hs", bus_machine_method_open_shell, SD_BUS_VTABLE_UNPRIVILEGED),
|
|
SD_BUS_METHOD("BindMount", "ssbb", NULL, bus_machine_method_bind_mount, SD_BUS_VTABLE_UNPRIVILEGED),
|
|
SD_BUS_METHOD("CopyFrom", "ss", NULL, bus_machine_method_copy, SD_BUS_VTABLE_UNPRIVILEGED),
|
|
SD_BUS_METHOD("CopyTo", "ss", NULL, bus_machine_method_copy, SD_BUS_VTABLE_UNPRIVILEGED),
|
|
SD_BUS_METHOD("OpenRootDirectory", NULL, "h", bus_machine_method_open_root_directory, SD_BUS_VTABLE_UNPRIVILEGED),
|
|
SD_BUS_VTABLE_END
|
|
};
|
|
|
|
int machine_object_find(sd_bus *bus, const char *path, const char *interface, void *userdata, void **found, sd_bus_error *error) {
|
|
Manager *m = userdata;
|
|
Machine *machine;
|
|
int r;
|
|
|
|
assert(bus);
|
|
assert(path);
|
|
assert(interface);
|
|
assert(found);
|
|
assert(m);
|
|
|
|
if (streq(path, "/org/freedesktop/machine1/machine/self")) {
|
|
_cleanup_(sd_bus_creds_unrefp) sd_bus_creds *creds = NULL;
|
|
sd_bus_message *message;
|
|
pid_t pid;
|
|
|
|
message = sd_bus_get_current_message(bus);
|
|
if (!message)
|
|
return 0;
|
|
|
|
r = sd_bus_query_sender_creds(message, SD_BUS_CREDS_PID, &creds);
|
|
if (r < 0)
|
|
return r;
|
|
|
|
r = sd_bus_creds_get_pid(creds, &pid);
|
|
if (r < 0)
|
|
return r;
|
|
|
|
r = manager_get_machine_by_pid(m, pid, &machine);
|
|
if (r <= 0)
|
|
return 0;
|
|
} else {
|
|
_cleanup_free_ char *e = NULL;
|
|
const char *p;
|
|
|
|
p = startswith(path, "/org/freedesktop/machine1/machine/");
|
|
if (!p)
|
|
return 0;
|
|
|
|
e = bus_label_unescape(p);
|
|
if (!e)
|
|
return -ENOMEM;
|
|
|
|
machine = hashmap_get(m->machines, e);
|
|
if (!machine)
|
|
return 0;
|
|
}
|
|
|
|
*found = machine;
|
|
return 1;
|
|
}
|
|
|
|
char *machine_bus_path(Machine *m) {
|
|
_cleanup_free_ char *e = NULL;
|
|
|
|
assert(m);
|
|
|
|
e = bus_label_escape(m->name);
|
|
if (!e)
|
|
return NULL;
|
|
|
|
return strappend("/org/freedesktop/machine1/machine/", e);
|
|
}
|
|
|
|
int machine_node_enumerator(sd_bus *bus, const char *path, void *userdata, char ***nodes, sd_bus_error *error) {
|
|
_cleanup_strv_free_ char **l = NULL;
|
|
Machine *machine = NULL;
|
|
Manager *m = userdata;
|
|
Iterator i;
|
|
int r;
|
|
|
|
assert(bus);
|
|
assert(path);
|
|
assert(nodes);
|
|
|
|
HASHMAP_FOREACH(machine, m->machines, i) {
|
|
char *p;
|
|
|
|
p = machine_bus_path(machine);
|
|
if (!p)
|
|
return -ENOMEM;
|
|
|
|
r = strv_consume(&l, p);
|
|
if (r < 0)
|
|
return r;
|
|
}
|
|
|
|
*nodes = TAKE_PTR(l);
|
|
|
|
return 1;
|
|
}
|
|
|
|
int machine_send_signal(Machine *m, bool new_machine) {
|
|
_cleanup_free_ char *p = NULL;
|
|
|
|
assert(m);
|
|
|
|
p = machine_bus_path(m);
|
|
if (!p)
|
|
return -ENOMEM;
|
|
|
|
return sd_bus_emit_signal(
|
|
m->manager->bus,
|
|
"/org/freedesktop/machine1",
|
|
"org.freedesktop.machine1.Manager",
|
|
new_machine ? "MachineNew" : "MachineRemoved",
|
|
"so", m->name, p);
|
|
}
|
|
|
|
int machine_send_create_reply(Machine *m, sd_bus_error *error) {
|
|
_cleanup_(sd_bus_message_unrefp) sd_bus_message *c = NULL;
|
|
_cleanup_free_ char *p = NULL;
|
|
|
|
assert(m);
|
|
|
|
if (!m->create_message)
|
|
return 0;
|
|
|
|
c = m->create_message;
|
|
m->create_message = NULL;
|
|
|
|
if (error)
|
|
return sd_bus_reply_method_error(c, error);
|
|
|
|
/* Update the machine state file before we notify the client
|
|
* about the result. */
|
|
machine_save(m);
|
|
|
|
p = machine_bus_path(m);
|
|
if (!p)
|
|
return -ENOMEM;
|
|
|
|
return sd_bus_reply_method_return(c, "o", p);
|
|
}
|