picnoir/Systemd
1
0
Fork 0
Code Issues Pull requests Projects Releases Wiki Activity
Systemd/src/machine/machinectl.c
Lennart Poettering 3d7415f43f import: introduce new mini-daemon systemd-importd, and make machinectl a client to it 
The old "systemd-import" binary is now an internal tool. We still use it
as asynchronous backend for systemd-importd. Since the import tool might
require some IO and CPU resources (due to qcow2 explosion, and
decompression), and because we might want to run it with more minimal
priviliges we still keep it around as the worker binary to execute as
child process of importd.

machinectl now has verbs for pulling down images, cancelling them and
listing them.
2015-01-22 04:02:07 +01:00

2487 lines
85 KiB
C
Raw Blame History

/*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/
/***
This file is part of systemd.
Copyright 2013 Lennart Poettering
systemd is free software; you can redistribute it and/or modify it
under the terms of the GNU Lesser General Public License as published by
the Free Software Foundation; either version 2.1 of the License, or
(at your option) any later version.
systemd is distributed in the hope that it will be useful, but
WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public License
along with systemd; If not, see <http://www.gnu.org/licenses/>.
***/
#include <sys/socket.h>
#include <unistd.h>
#include <errno.h>
#include <string.h>
#include <getopt.h>
#include <pwd.h>
#include <locale.h>
#include <fcntl.h>
#include <netinet/in.h>
#include <arpa/inet.h>
#include <net/if.h>
#include <sys/mount.h>
#include <libgen.h>
#undef basename
#include "sd-bus.h"
#include "log.h"
#include "util.h"
#include "macro.h"
#include "pager.h"
#include "spawn-polkit-agent.h"
#include "bus-util.h"
#include "bus-error.h"
#include "build.h"
#include "strv.h"
#include "unit-name.h"
#include "cgroup-show.h"
#include "logs-show.h"
#include "cgroup-util.h"
#include "ptyfwd.h"
#include "event-util.h"
#include "path-util.h"
#include "mkdir.h"
#include "copy.h"
#include "verbs.h"
#include "import-util.h"
static char **arg_property = NULL;
static bool arg_all = false;
static bool arg_full = false;
static bool arg_no_pager = false;
static bool arg_legend = true;
static const char *arg_kill_who = NULL;
static int arg_signal = SIGTERM;
static BusTransport arg_transport = BUS_TRANSPORT_LOCAL;
static char *arg_host = NULL;
static bool arg_read_only = false;
static bool arg_mkdir = false;
static bool arg_quiet = false;
static bool arg_ask_password = true;
static unsigned arg_lines = 10;
static OutputMode arg_output = OUTPUT_SHORT;
static bool arg_force = false;
static const char* arg_verify = NULL;
static const char* arg_dkr_index_url = NULL;
static void pager_open_if_enabled(void) {
if (arg_no_pager)
return;
pager_open(false);
}
static void polkit_agent_open_if_enabled(void) {
/* Open the polkit agent as a child process if necessary */
if (!arg_ask_password)
return;
if (arg_transport != BUS_TRANSPORT_LOCAL)
return;
polkit_agent_open();
}
static OutputFlags get_output_flags(void) {
return
arg_all * OUTPUT_SHOW_ALL |
arg_full * OUTPUT_FULL_WIDTH |
(!on_tty() || pager_have()) * OUTPUT_FULL_WIDTH |
on_tty() * OUTPUT_COLOR |
!arg_quiet * OUTPUT_WARN_CUTOFF;
}
typedef struct MachineInfo {
const char *name;
const char *class;
const char *service;
} MachineInfo;
static int compare_machine_info(const void *a, const void *b) {
const MachineInfo *x = a, *y = b;
return strcmp(x->name, y->name);
}
static int list_machines(int argc, char *argv[], void *userdata) {
size_t max_name = strlen("MACHINE"), max_class = strlen("CLASS"), max_service = strlen("SERVICE");
_cleanup_bus_error_free_ sd_bus_error error = SD_BUS_ERROR_NULL;
_cleanup_bus_message_unref_ sd_bus_message *reply = NULL;
_cleanup_free_ MachineInfo *machines = NULL;
const char *name, *class, *service, *object;
size_t n_machines = 0, n_allocated = 0, j;
sd_bus *bus = userdata;
int r;
assert(bus);
pager_open_if_enabled();
r = sd_bus_call_method(
bus,
"org.freedesktop.machine1",
"/org/freedesktop/machine1",
"org.freedesktop.machine1.Manager",
"ListMachines",
&error,
&reply,
NULL);
if (r < 0) {
log_error("Could not get machines: %s", bus_error_message(&error, -r));
return r;
}
r = sd_bus_message_enter_container(reply, 'a', "(ssso)");
if (r < 0)
return bus_log_parse_error(r);
while ((r = sd_bus_message_read(reply, "(ssso)", &name, &class, &service, &object)) > 0) {
size_t l;
if (!GREEDY_REALLOC(machines, n_allocated, n_machines + 1))
return log_oom();
machines[n_machines].name = name;
machines[n_machines].class = class;
machines[n_machines].service = service;
l = strlen(name);
if (l > max_name)
max_name = l;
l = strlen(class);
if (l > max_class)
max_class = l;
l = strlen(service);
if (l > max_service)
max_service = l;
n_machines ++;
}
if (r < 0)
return bus_log_parse_error(r);
r = sd_bus_message_exit_container(reply);
if (r < 0)
return bus_log_parse_error(r);
qsort_safe(machines, n_machines, sizeof(MachineInfo), compare_machine_info);
if (arg_legend)
printf("%-*s %-*s %-*s\n",
(int) max_name, "MACHINE",
(int) max_class, "CLASS",
(int) max_service, "SERVICE");
for (j = 0; j < n_machines; j++)
printf("%-*s %-*s %-*s\n",
(int) max_name, machines[j].name,
(int) max_class, machines[j].class,
(int) max_service, machines[j].service);
if (arg_legend)
printf("\n%zu machines listed.\n", n_machines);
return 0;
}
typedef struct ImageInfo {
const char *name;
const char *type;
bool read_only;
usec_t crtime;
usec_t mtime;
uint64_t size;
} ImageInfo;
static int compare_image_info(const void *a, const void *b) {
const ImageInfo *x = a, *y = b;
return strcmp(x->name, y->name);
}
static int list_images(int argc, char *argv[], void *userdata) {
_cleanup_bus_error_free_ sd_bus_error error = SD_BUS_ERROR_NULL;
size_t max_name = strlen("NAME"), max_type = strlen("TYPE"), max_size = strlen("USAGE"), max_crtime = strlen("CREATED"), max_mtime = strlen("MODIFIED");
_cleanup_bus_message_unref_ sd_bus_message *reply = NULL;
_cleanup_free_ ImageInfo *images = NULL;
size_t n_images = 0, n_allocated = 0, j;
const char *name, *type, *object;
sd_bus *bus = userdata;
uint64_t crtime, mtime, size;
int read_only, r;
assert(bus);
pager_open_if_enabled();
r = sd_bus_call_method(
bus,
"org.freedesktop.machine1",
"/org/freedesktop/machine1",
"org.freedesktop.machine1.Manager",
"ListImages",
&error,
&reply,
"");
if (r < 0) {
log_error("Could not get images: %s", bus_error_message(&error, -r));
return r;
}
r = sd_bus_message_enter_container(reply, SD_BUS_TYPE_ARRAY, "(ssbttto)");
if (r < 0)
return bus_log_parse_error(r);
while ((r = sd_bus_message_read(reply, "(ssbttto)", &name, &type, &read_only, &crtime, &mtime, &size, &object)) > 0) {
char buf[MAX(FORMAT_TIMESTAMP_MAX, FORMAT_BYTES_MAX)];
size_t l;
if (name[0] == '.' && !arg_all)
continue;
if (!GREEDY_REALLOC(images, n_allocated, n_images + 1))
return log_oom();
images[n_images].name = name;
images[n_images].type = type;
images[n_images].read_only = read_only;
images[n_images].crtime = crtime;
images[n_images].mtime = mtime;
images[n_images].size = size;
l = strlen(name);
if (l > max_name)
max_name = l;
l = strlen(type);
if (l > max_type)
max_type = l;
if (crtime != 0) {
l = strlen(strna(format_timestamp(buf, sizeof(buf), crtime)));
if (l > max_crtime)
max_crtime = l;
}
if (mtime != 0) {
l = strlen(strna(format_timestamp(buf, sizeof(buf), mtime)));
if (l > max_mtime)
max_mtime = l;
}
if (size != (uint64_t) -1) {
l = strlen(strna(format_bytes(buf, sizeof(buf), size)));
if (l > max_size)
max_size = l;
}
n_images++;
}
if (r < 0)
return bus_log_parse_error(r);
r = sd_bus_message_exit_container(reply);
if (r < 0)
return bus_log_parse_error(r);
qsort_safe(images, n_images, sizeof(ImageInfo), compare_image_info);
if (arg_legend)
printf("%-*s %-*s %-3s %-*s %-*s %-*s\n",
(int) max_name, "NAME",
(int) max_type, "TYPE",
"RO",
(int) max_size, "USAGE",
(int) max_crtime, "CREATED",
(int) max_mtime, "MODIFIED");
for (j = 0; j < n_images; j++) {
char crtime_buf[FORMAT_TIMESTAMP_MAX], mtime_buf[FORMAT_TIMESTAMP_MAX], size_buf[FORMAT_BYTES_MAX];
printf("%-*s %-*s %s%-3s%s %-*s %-*s %-*s\n",
(int) max_name, images[j].name,
(int) max_type, images[j].type,
images[j].read_only ? ansi_highlight_red() : "", yes_no(images[j].read_only), images[j].read_only ? ansi_highlight_off() : "",
(int) max_size, strna(format_bytes(size_buf, sizeof(size_buf), images[j].size)),
(int) max_crtime, strna(format_timestamp(crtime_buf, sizeof(crtime_buf), images[j].crtime)),
(int) max_mtime, strna(format_timestamp(mtime_buf, sizeof(mtime_buf), images[j].mtime)));
}
if (arg_legend)
printf("\n%zu images listed.\n", n_images);
return 0;
}
static int show_unit_cgroup(sd_bus *bus, const char *unit, pid_t leader) {
_cleanup_bus_message_unref_ sd_bus_message *reply = NULL;
_cleanup_bus_error_free_ sd_bus_error error = SD_BUS_ERROR_NULL;
_cleanup_free_ char *path = NULL;
const char *cgroup;
int r;
unsigned c;
assert(bus);
assert(unit);
if (arg_transport == BUS_TRANSPORT_REMOTE)
return 0;
path = unit_dbus_path_from_name(unit);
if (!path)
return log_oom();
r = sd_bus_get_property(
bus,
"org.freedesktop.systemd1",
path,
endswith(unit, ".scope") ? "org.freedesktop.systemd1.Scope" : "org.freedesktop.systemd1.Service",
"ControlGroup",
&error,
&reply,
"s");
if (r < 0) {
log_error("Failed to query ControlGroup: %s", bus_error_message(&error, -r));
return r;
}
r = sd_bus_message_read(reply, "s", &cgroup);
if (r < 0)
return bus_log_parse_error(r);
if (isempty(cgroup))
return 0;
if (cg_is_empty_recursive(SYSTEMD_CGROUP_CONTROLLER, cgroup, false) != 0 && leader <= 0)
return 0;
c = columns();
if (c > 18)
c -= 18;
else
c = 0;
show_cgroup_and_extra(SYSTEMD_CGROUP_CONTROLLER, cgroup, "\t\t ", c, false, &leader, leader > 0, get_output_flags());
return 0;
}
static int print_addresses(sd_bus *bus, const char *name, int ifi, const char *prefix, const char *prefix2) {
_cleanup_bus_message_unref_ sd_bus_message *reply = NULL;
int r;
assert(bus);
assert(name);
assert(prefix);
assert(prefix2);
r = sd_bus_call_method(bus,
"org.freedesktop.machine1",
"/org/freedesktop/machine1",
"org.freedesktop.machine1.Manager",
"GetMachineAddresses",
NULL,
&reply,
"s", name);
if (r < 0)
return r;
r = sd_bus_message_enter_container(reply, 'a', "(iay)");
if (r < 0)
return bus_log_parse_error(r);
while ((r = sd_bus_message_enter_container(reply, 'r', "iay")) > 0) {
int family;
const void *a;
size_t sz;
char buffer[MAX(INET6_ADDRSTRLEN, INET_ADDRSTRLEN)];
r = sd_bus_message_read(reply, "i", &family);
if (r < 0)
return bus_log_parse_error(r);
r = sd_bus_message_read_array(reply, 'y', &a, &sz);
if (r < 0)
return bus_log_parse_error(r);
fputs(prefix, stdout);
fputs(inet_ntop(family, a, buffer, sizeof(buffer)), stdout);
if (family == AF_INET6 && ifi > 0)
printf("%%%i", ifi);
fputc('\n', stdout);
r = sd_bus_message_exit_container(reply);
if (r < 0)
return bus_log_parse_error(r);
if (prefix != prefix2)
prefix = prefix2;
}
if (r < 0)
return bus_log_parse_error(r);
r = sd_bus_message_exit_container(reply);
if (r < 0)
return bus_log_parse_error(r);
return 0;
}
static int print_os_release(sd_bus *bus, const char *name, const char *prefix) {
_cleanup_bus_message_unref_ sd_bus_message *reply = NULL;
const char *k, *v, *pretty = NULL;
int r;
assert(bus);
assert(name);
assert(prefix);
r = sd_bus_call_method(bus,
"org.freedesktop.machine1",
"/org/freedesktop/machine1",
"org.freedesktop.machine1.Manager",
"GetMachineOSRelease",
NULL,
&reply,
"s", name);
if (r < 0)
return r;
r = sd_bus_message_enter_container(reply, 'a', "{ss}");
if (r < 0)
return bus_log_parse_error(r);
while ((r = sd_bus_message_read(reply, "{ss}", &k, &v)) > 0) {
if (streq(k, "PRETTY_NAME"))
pretty = v;
}
if (r < 0)
return bus_log_parse_error(r);
r = sd_bus_message_exit_container(reply);
if (r < 0)
return bus_log_parse_error(r);
if (pretty)
printf("%s%s\n", prefix, pretty);
return 0;
}
typedef struct MachineStatusInfo {
char *name;
sd_id128_t id;
char *class;
char *service;
char *unit;
char *root_directory;
pid_t leader;
struct dual_timestamp timestamp;
int *netif;
unsigned n_netif;
} MachineStatusInfo;
static void print_machine_status_info(sd_bus *bus, MachineStatusInfo *i) {
char since1[FORMAT_TIMESTAMP_RELATIVE_MAX], *s1;
char since2[FORMAT_TIMESTAMP_MAX], *s2;
int ifi = -1;
assert(bus);
assert(i);
fputs(strna(i->name), stdout);
if (!sd_id128_equal(i->id, SD_ID128_NULL))
printf("(" SD_ID128_FORMAT_STR ")\n", SD_ID128_FORMAT_VAL(i->id));
else
putchar('\n');
s1 = format_timestamp_relative(since1, sizeof(since1), i->timestamp.realtime);
s2 = format_timestamp(since2, sizeof(since2), i->timestamp.realtime);
if (s1)
printf("\t Since: %s; %s\n", s2, s1);
else if (s2)
printf("\t Since: %s\n", s2);
if (i->leader > 0) {
_cleanup_free_ char *t = NULL;
printf("\t Leader: %u", (unsigned) i->leader);
get_process_comm(i->leader, &t);
if (t)
printf(" (%s)", t);
putchar('\n');
}
if (i->service) {
printf("\t Service: %s", i->service);
if (i->class)
printf("; class %s", i->class);
putchar('\n');
} else if (i->class)
printf("\t Class: %s\n", i->class);
if (i->root_directory)
printf("\t Root: %s\n", i->root_directory);
if (i->n_netif > 0) {
unsigned c;
fputs("\t Iface:", stdout);
for (c = 0; c < i->n_netif; c++) {
char name[IF_NAMESIZE+1] = "";
if (if_indextoname(i->netif[c], name)) {
fputc(' ', stdout);
fputs(name, stdout);
if (ifi < 0)
ifi = i->netif[c];
else
ifi = 0;
} else
printf(" %i", i->netif[c]);
}
fputc('\n', stdout);
}
print_addresses(bus, i->name, ifi,
"\t Address: ",
"\t ");
print_os_release(bus, i->name, "\t OS: ");
if (i->unit) {
printf("\t Unit: %s\n", i->unit);
show_unit_cgroup(bus, i->unit, i->leader);
if (arg_transport == BUS_TRANSPORT_LOCAL) {
show_journal_by_unit(
stdout,
i->unit,
arg_output,
0,
i->timestamp.monotonic,
arg_lines,
0,
get_output_flags() | OUTPUT_BEGIN_NEWLINE,
SD_JOURNAL_LOCAL_ONLY,
true,
NULL);
}
}
}
static int map_netif(sd_bus *bus, const char *member, sd_bus_message *m, sd_bus_error *error, void *userdata) {
MachineStatusInfo *i = userdata;
size_t l;
const void *v;
int r;
assert_cc(sizeof(int32_t) == sizeof(int));
r = sd_bus_message_read_array(m, SD_BUS_TYPE_INT32, &v, &l);
if (r < 0)
return r;
if (r == 0)
return -EBADMSG;
i->n_netif = l / sizeof(int32_t);
i->netif = memdup(v, l);
if (!i->netif)
return -ENOMEM;
return 0;
}
static int show_machine_info(const char *verb, sd_bus *bus, const char *path, bool *new_line) {
static const struct bus_properties_map map[] = {
{ "Name", "s", NULL, offsetof(MachineStatusInfo, name) },
{ "Class", "s", NULL, offsetof(MachineStatusInfo, class) },
{ "Service", "s", NULL, offsetof(MachineStatusInfo, service) },
{ "Unit", "s", NULL, offsetof(MachineStatusInfo, unit) },
{ "RootDirectory", "s", NULL, offsetof(MachineStatusInfo, root_directory) },
{ "Leader", "u", NULL, offsetof(MachineStatusInfo, leader) },
{ "Timestamp", "t", NULL, offsetof(MachineStatusInfo, timestamp.realtime) },
{ "TimestampMonotonic", "t", NULL, offsetof(MachineStatusInfo, timestamp.monotonic) },
{ "Id", "ay", bus_map_id128, offsetof(MachineStatusInfo, id) },
{ "NetworkInterfaces", "ai", map_netif, 0 },
{}
};
MachineStatusInfo info = {};
int r;
assert(verb);
assert(bus);
assert(path);
assert(new_line);
r = bus_map_all_properties(bus,
"org.freedesktop.machine1",
path,
map,
&info);
if (r < 0)
return log_error_errno(r, "Could not get properties: %m");
if (*new_line)
printf("\n");
*new_line = true;
print_machine_status_info(bus, &info);
free(info.name);
free(info.class);
free(info.service);
free(info.unit);
free(info.root_directory);
free(info.netif);
return r;
}
static int show_machine_properties(sd_bus *bus, const char *path, bool *new_line) {
int r;
assert(bus);
assert(path);
assert(new_line);
if (*new_line)
printf("\n");
*new_line = true;
r = bus_print_all_properties(bus, "org.freedesktop.machine1", path, arg_property, arg_all);
if (r < 0)
log_error_errno(r, "Could not get properties: %m");
return r;
}
static int show_machine(int argc, char *argv[], void *userdata) {
_cleanup_bus_error_free_ sd_bus_error error = SD_BUS_ERROR_NULL;
_cleanup_bus_message_unref_ sd_bus_message *reply = NULL;
bool properties, new_line = false;
sd_bus *bus = userdata;
int r = 0, i;
assert(bus);
properties = !strstr(argv[0], "status");
pager_open_if_enabled();
if (properties && argc <= 1) {
/* If no argument is specified, inspect the manager
* itself */
r = show_machine_properties(bus, "/org/freedesktop/machine1", &new_line);
if (r < 0)
return r;
}
for (i = 1; i < argc; i++) {
const char *path = NULL;
r = sd_bus_call_method(
bus,
"org.freedesktop.machine1",
"/org/freedesktop/machine1",
"org.freedesktop.machine1.Manager",
"GetMachine",
&error,
&reply,
"s", argv[i]);
if (r < 0) {
log_error("Could not get path to machine: %s", bus_error_message(&error, -r));
return r;
}
r = sd_bus_message_read(reply, "o", &path);
if (r < 0)
return bus_log_parse_error(r);
if (properties)
r = show_machine_properties(bus, path, &new_line);
else
r = show_machine_info(argv[0], bus, path, &new_line);
}
return r;
}
typedef struct ImageStatusInfo {
char *name;
char *path;
char *type;
int read_only;
usec_t crtime;
usec_t mtime;
uint64_t usage;
uint64_t limit;
uint64_t usage_exclusive;
uint64_t limit_exclusive;
} ImageStatusInfo;
static void print_image_status_info(sd_bus *bus, ImageStatusInfo *i) {
char ts_relative[FORMAT_TIMESTAMP_RELATIVE_MAX], *s1;
char ts_absolute[FORMAT_TIMESTAMP_MAX], *s2;
char bs[FORMAT_BYTES_MAX], *s3;
char bs_exclusive[FORMAT_BYTES_MAX], *s4;
assert(bus);
assert(i);
if (i->name) {
fputs(i->name, stdout);
putchar('\n');
}
if (i->type)
printf("\t Type: %s\n", i->type);
if (i->path)
printf("\t Path: %s\n", i->path);
printf("\t RO: %s%s%s\n",
i->read_only ? ansi_highlight_red() : "",
i->read_only ? "read-only" : "writable",
i->read_only ? ansi_highlight_off() : "");
s1 = format_timestamp_relative(ts_relative, sizeof(ts_relative), i->crtime);
s2 = format_timestamp(ts_absolute, sizeof(ts_absolute), i->crtime);
if (s1 && s2)
printf("\t Created: %s; %s\n", s2, s1);
else if (s2)
printf("\t Created: %s\n", s2);
s1 = format_timestamp_relative(ts_relative, sizeof(ts_relative), i->mtime);
s2 = format_timestamp(ts_absolute, sizeof(ts_absolute), i->mtime);
if (s1 && s2)
printf("\tModified: %s; %s\n", s2, s1);
else if (s2)
printf("\tModified: %s\n", s2);
s3 = format_bytes(bs, sizeof(bs), i->usage);
s4 = i->usage_exclusive != i->usage ? format_bytes(bs_exclusive, sizeof(bs_exclusive), i->usage_exclusive) : NULL;
if (s3 && s4)
printf("\t Usage: %s (exclusive: %s)\n", s3, s4);
else if (s3)
printf("\t Usage: %s\n", s3);
s3 = format_bytes(bs, sizeof(bs), i->limit);
s4 = i->limit_exclusive != i->limit ? format_bytes(bs_exclusive, sizeof(bs_exclusive), i->limit_exclusive) : NULL;
if (s3 && s4)
printf("\t Limit: %s (exclusive: %s)\n", s3, s4);
else if (s3)
printf("\t Limit: %s\n", s3);
}
static int show_image_info(const char *verb, sd_bus *bus, const char *path, bool *new_line) {
static const struct bus_properties_map map[] = {
{ "Name", "s", NULL, offsetof(ImageStatusInfo, name) },
{ "Path", "s", NULL, offsetof(ImageStatusInfo, path) },
{ "Type", "s", NULL, offsetof(ImageStatusInfo, type) },
{ "ReadOnly", "b", NULL, offsetof(ImageStatusInfo, read_only) },
{ "CreationTimestamp", "t", NULL, offsetof(ImageStatusInfo, crtime) },
{ "ModificationTimestamp", "t", NULL, offsetof(ImageStatusInfo, mtime) },
{ "Usage", "t", NULL, offsetof(ImageStatusInfo, usage) },
{ "Limit", "t", NULL, offsetof(ImageStatusInfo, limit) },
{ "UsageExclusive", "t", NULL, offsetof(ImageStatusInfo, usage_exclusive) },
{ "LimitExclusive", "t", NULL, offsetof(ImageStatusInfo, limit_exclusive) },
{}
};
ImageStatusInfo info = {};
int r;
assert(verb);
assert(bus);
assert(path);
assert(new_line);
r = bus_map_all_properties(bus,
"org.freedesktop.machine1",
path,
map,
&info);
if (r < 0)
return log_error_errno(r, "Could not get properties: %m");
if (*new_line)
printf("\n");
*new_line = true;
print_image_status_info(bus, &info);
free(info.name);
free(info.path);
free(info.type);
return r;
}
static int show_image_properties(sd_bus *bus, const char *path, bool *new_line) {
int r;
assert(bus);
assert(path);
assert(new_line);
if (*new_line)
printf("\n");
*new_line = true;
r = bus_print_all_properties(bus, "org.freedesktop.machine1", path, arg_property, arg_all);
if (r < 0)
log_error_errno(r, "Could not get properties: %m");
return r;
}
static int show_image(int argc, char *argv[], void *userdata) {
_cleanup_bus_error_free_ sd_bus_error error = SD_BUS_ERROR_NULL;
_cleanup_bus_message_unref_ sd_bus_message *reply = NULL;
bool properties, new_line = false;
sd_bus *bus = userdata;
int r = 0, i;
assert(bus);
properties = !strstr(argv[0], "status");
pager_open_if_enabled();
if (properties && argc <= 1) {
/* If no argument is specified, inspect the manager
* itself */
r = show_image_properties(bus, "/org/freedesktop/machine1", &new_line);
if (r < 0)
return r;
}
for (i = 1; i < argc; i++) {
const char *path = NULL;
r = sd_bus_call_method(
bus,
"org.freedesktop.machine1",
"/org/freedesktop/machine1",
"org.freedesktop.machine1.Manager",
"GetImage",
&error,
&reply,
"s", argv[i]);
if (r < 0) {
log_error("Could not get path to image: %s", bus_error_message(&error, -r));
return r;
}
r = sd_bus_message_read(reply, "o", &path);
if (r < 0)
return bus_log_parse_error(r);
if (properties)
r = show_image_properties(bus, path, &new_line);
else
r = show_image_info(argv[0], bus, path, &new_line);
}
return r;
}
static int kill_machine(int argc, char *argv[], void *userdata) {
_cleanup_bus_error_free_ sd_bus_error error = SD_BUS_ERROR_NULL;
sd_bus *bus = userdata;
int i;
assert(bus);
polkit_agent_open_if_enabled();
if (!arg_kill_who)
arg_kill_who = "all";
for (i = 1; i < argc; i++) {
int r;
r = sd_bus_call_method(
bus,
"org.freedesktop.machine1",
"/org/freedesktop/machine1",
"org.freedesktop.machine1.Manager",
"KillMachine",
&error,
NULL,
"ssi", argv[i], arg_kill_who, arg_signal);
if (r < 0) {
log_error("Could not kill machine: %s", bus_error_message(&error, -r));
return r;
}
}
return 0;
}
static int reboot_machine(int argc, char *argv[], void *userdata) {
arg_kill_who = "leader";
arg_signal = SIGINT; /* sysvinit + systemd */
return kill_machine(argc, argv, userdata);
}
static int poweroff_machine(int argc, char *argv[], void *userdata) {
arg_kill_who = "leader";
arg_signal = SIGRTMIN+4; /* only systemd */
return kill_machine(argc, argv, userdata);
}
static int terminate_machine(int argc, char *argv[], void *userdata) {
_cleanup_bus_error_free_ sd_bus_error error = SD_BUS_ERROR_NULL;
sd_bus *bus = userdata;
int i;
assert(bus);
polkit_agent_open_if_enabled();
for (i = 1; i < argc; i++) {
int r;
r = sd_bus_call_method(
bus,
"org.freedesktop.machine1",
"/org/freedesktop/machine1",
"org.freedesktop.machine1.Manager",
"TerminateMachine",
&error,
NULL,
"s", argv[i]);
if (r < 0) {
log_error("Could not terminate machine: %s", bus_error_message(&error, -r));
return r;
}
}
return 0;
}
static int machine_get_leader(sd_bus *bus, const char *name, pid_t *ret) {
_cleanup_bus_error_free_ sd_bus_error error = SD_BUS_ERROR_NULL;
_cleanup_bus_message_unref_ sd_bus_message *reply = NULL, *reply2 = NULL;
const char *object;
uint32_t leader;
int r;
assert(bus);
assert(name);
assert(ret);
r = sd_bus_call_method(
bus,
"org.freedesktop.machine1",
"/org/freedesktop/machine1",
"org.freedesktop.machine1.Manager",
"GetMachine",
&error,
&reply,
"s", name);
if (r < 0) {
log_error("Could not get path to machine: %s", bus_error_message(&error, -r));
return r;
}
r = sd_bus_message_read(reply, "o", &object);
if (r < 0)
return bus_log_parse_error(r);
r = sd_bus_get_property(
bus,
"org.freedesktop.machine1",
object,
"org.freedesktop.machine1.Machine",
"Leader",
&error,
&reply2,
"u");
if (r < 0)
return log_error_errno(r, "Failed to retrieve PID of leader: %m");
r = sd_bus_message_read(reply2, "u", &leader);
if (r < 0)
return bus_log_parse_error(r);
*ret = leader;
return 0;
}
static int copy_files(int argc, char *argv[], void *userdata) {
char *dest, *host_path, *container_path, *host_dirname, *host_basename, *container_dirname, *container_basename, *t;
_cleanup_close_ int hostfd = -1;
sd_bus *bus = userdata;
pid_t child, leader;
bool copy_from;
siginfo_t si;
int r;
assert(bus);
copy_from = streq(argv[0], "copy-from");
dest = argv[3] ?: argv[2];
host_path = strdupa(copy_from ? dest : argv[2]);
container_path = strdupa(copy_from ? argv[2] : dest);
if (!path_is_absolute(container_path)) {
log_error("Container path not absolute.");
return -EINVAL;
}
t = strdupa(host_path);
host_basename = basename(t);
host_dirname = dirname(host_path);
t = strdupa(container_path);
container_basename = basename(t);
container_dirname = dirname(container_path);
r = machine_get_leader(bus, argv[1], &leader);
if (r < 0)
return r;
hostfd = open(host_dirname, O_CLOEXEC|O_RDONLY|O_NOCTTY|O_DIRECTORY);
if (r < 0)
return log_error_errno(errno, "Failed to open source directory: %m");
child = fork();
if (child < 0)
return log_error_errno(errno, "Failed to fork(): %m");
if (child == 0) {
int containerfd;
const char *q;
int mntfd;
q = procfs_file_alloca(leader, "ns/mnt");
mntfd = open(q, O_RDONLY|O_NOCTTY|O_CLOEXEC);
if (mntfd < 0) {
log_error_errno(errno, "Failed to open mount namespace of leader: %m");
_exit(EXIT_FAILURE);
}
if (setns(mntfd, CLONE_NEWNS) < 0) {
log_error_errno(errno, "Failed to join namespace of leader: %m");
_exit(EXIT_FAILURE);
}
containerfd = open(container_dirname, O_CLOEXEC|O_RDONLY|O_NOCTTY|O_DIRECTORY);
if (containerfd < 0) {
log_error_errno(errno, "Failed top open destination directory: %m");
_exit(EXIT_FAILURE);
}
if (copy_from)
r = copy_tree_at(containerfd, container_basename, hostfd, host_basename, true);
else
r = copy_tree_at(hostfd, host_basename, containerfd, container_basename, true);
if (r < 0) {
log_error_errno(errno, "Failed to copy tree: %m");
_exit(EXIT_FAILURE);
}
_exit(EXIT_SUCCESS);
}
r = wait_for_terminate(child, &si);
if (r < 0)
return log_error_errno(r, "Failed to wait for client: %m");
if (si.si_code != CLD_EXITED) {
log_error("Client died abnormally.");
return -EIO;
}
if (si.si_status != EXIT_SUCCESS)
return -EIO;
return 0;
}
static int bind_mount(int argc, char *argv[], void *userdata) {
char mount_slave[] = "/tmp/propagate.XXXXXX", *mount_tmp, *mount_outside, *p;
sd_bus *bus = userdata;
pid_t child, leader;
const char *dest;
siginfo_t si;
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;
int r;
assert(bus);
/* One day, when bind mounting /proc/self/fd/n works across
* namespace boundaries we should rework this logic to make
* use of it... */
dest = argv[3] ?: argv[2];
if (!path_is_absolute(dest)) {
log_error("Destination path not absolute.");
return -EINVAL;
}
p = strappenda("/run/systemd/nspawn/propagate/", argv[1], "/");
if (access(p, F_OK) < 0) {
log_error("Container does not allow propagation of mount points.");
return -ENOTSUP;
}
r = machine_get_leader(bus, argv[1], &leader);
if (r < 0)
return r;
/* 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_MOUNT cannot be applied to mounts with MS_SHARED parent
mounts.) */
if (!mkdtemp(mount_slave))
return log_error_errno(errno, "Failed to create playground: %m");
mount_slave_created = true;
if (mount(mount_slave, mount_slave, NULL, MS_BIND, NULL) < 0) {
r = log_error_errno(errno, "Failed to make bind mount: %m");
goto finish;
}
mount_slave_mounted = true;
if (mount(NULL, mount_slave, NULL, MS_SLAVE, NULL) < 0) {
r = log_error_errno(errno, "Failed to remount slave: %m");
goto finish;
}
/* Second, we mount the source directory to a directory inside
of our MS_SLAVE playground. */
mount_tmp = strappenda(mount_slave, "/mount");
if (mkdir(mount_tmp, 0700) < 0) {
r = log_error_errno(errno, "Failed to create temporary mount: %m");
goto finish;
}
mount_tmp_created = true;
if (mount(argv[2], mount_tmp, NULL, MS_BIND, NULL) < 0) {
r = log_error_errno(errno, "Failed to overmount: %m");
goto finish;
}
mount_tmp_mounted = true;
/* Third, we remount the new bind mount read-only if requested. */
if (arg_read_only)
if (mount(NULL, mount_tmp, NULL, MS_BIND|MS_REMOUNT|MS_RDONLY, NULL) < 0) {
r = log_error_errno(errno, "Failed to mark read-only: %m");
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 = strappenda("/run/systemd/nspawn/propagate/", argv[1], "/XXXXXX");
if (!mkdtemp(mount_outside)) {
r = log_error_errno(errno, "Cannot create propagation directory: %m");
goto finish;
}
mount_outside_created = true;
if (mount(mount_tmp, mount_outside, NULL, MS_MOVE, NULL) < 0) {
r = log_error_errno(errno, "Failed to move: %m");
goto finish;
}
mount_outside_mounted = true;
mount_tmp_mounted = false;
(void) rmdir(mount_tmp);
mount_tmp_created = false;
(void) umount(mount_slave);
mount_slave_mounted = false;
(void) rmdir(mount_slave);
mount_slave_created = false;
child = fork();
if (child < 0) {
r = log_error_errno(errno, "Failed to fork(): %m");
goto finish;
}
if (child == 0) {
const char *mount_inside;
int mntfd;
const char *q;
q = procfs_file_alloca(leader, "ns/mnt");
mntfd = open(q, O_RDONLY|O_NOCTTY|O_CLOEXEC);
if (mntfd < 0) {
log_error_errno(errno, "Failed to open mount namespace of leader: %m");
_exit(EXIT_FAILURE);
}
if (setns(mntfd, CLONE_NEWNS) < 0) {
log_error_errno(errno, "Failed to join namespace of leader: %m");
_exit(EXIT_FAILURE);
}
if (arg_mkdir)
mkdir_p(dest, 0755);
/* Fifth, move the mount to the right place inside */
mount_inside = strappenda("/run/systemd/nspawn/incoming/", basename(mount_outside));
if (mount(mount_inside, dest, NULL, MS_MOVE, NULL) < 0) {
log_error_errno(errno, "Failed to mount: %m");
_exit(EXIT_FAILURE);
}
_exit(EXIT_SUCCESS);
}
r = wait_for_terminate(child, &si);
if (r < 0) {
log_error_errno(r, "Failed to wait for client: %m");
goto finish;
}
if (si.si_code != CLD_EXITED) {
log_error("Client died abnormally.");
r = -EIO;
goto finish;
}
if (si.si_status != EXIT_SUCCESS) {
r = -EIO;
goto finish;
}
r = 0;
finish:
if (mount_outside_mounted)
umount(mount_outside);
if (mount_outside_created)
rmdir(mount_outside);
if (mount_tmp_mounted)
umount(mount_tmp);
if (mount_tmp_created)
umount(mount_tmp);
if (mount_slave_mounted)
umount(mount_slave);
if (mount_slave_created)
umount(mount_slave);
return r;
}
static int on_machine_removed(sd_bus *bus, sd_bus_message *m, void *userdata, sd_bus_error *ret_error) {
PTYForward ** forward = (PTYForward**) userdata;
int r;
assert(bus);
assert(m);
assert(forward);
if (*forward) {
/* If the forwarder is already initialized, tell it to
* exit on the next vhangup(), so that we still flush
* out what might be queued and exit then. */
r = pty_forward_set_ignore_vhangup(*forward, false);
if (r >= 0)
return 0;
log_error_errno(r, "Failed to set ignore_vhangup flag: %m");
}
/* On error, or when the forwarder is not initialized yet, quit immediately */
sd_event_exit(sd_bus_get_event(bus), EXIT_FAILURE);
return 0;
}
static int login_machine(int argc, char *argv[], void *userdata) {
_cleanup_bus_error_free_ sd_bus_error error = SD_BUS_ERROR_NULL;
_cleanup_bus_message_unref_ sd_bus_message *m = NULL, *reply = NULL;
_cleanup_bus_slot_unref_ sd_bus_slot *slot = NULL;
_cleanup_(pty_forward_freep) PTYForward *forward = NULL;
_cleanup_event_unref_ sd_event *event = NULL;
int master = -1, r, ret = 0;
sd_bus *bus = userdata;
const char *pty, *match;
sigset_t mask;
char last_char = 0;
bool machine_died;
assert(bus);
if (arg_transport != BUS_TRANSPORT_LOCAL &&
arg_transport != BUS_TRANSPORT_MACHINE) {
log_error("Login only supported on local machines.");
return -ENOTSUP;
}
polkit_agent_open_if_enabled();
r = sd_event_default(&event);
if (r < 0)
return log_error_errno(r, "Failed to get event loop: %m");
r = sd_bus_attach_event(bus, event, 0);
if (r < 0)
return log_error_errno(r, "Failed to attach bus to event loop: %m");
match = strappenda("type='signal',"
"sender='org.freedesktop.machine1',"
"path='/org/freedesktop/machine1',",
"interface='org.freedesktop.machine1.Manager',"
"member='MachineRemoved',"
"arg0='",
argv[1],
"'");
r = sd_bus_add_match(bus, &slot, match, on_machine_removed, &forward);
if (r < 0)
return log_error_errno(r, "Failed to add machine removal match: %m");
r = sd_bus_message_new_method_call(bus,
&m,
"org.freedesktop.machine1",
"/org/freedesktop/machine1",
"org.freedesktop.machine1.Manager",
"OpenMachineLogin");
if (r < 0)
return bus_log_create_error(r);
r = sd_bus_message_set_allow_interactive_authorization(m, arg_ask_password);
if (r < 0)
return bus_log_create_error(r);
r = sd_bus_message_append(m, "s", argv[1]);
if (r < 0)
return bus_log_create_error(r);
r = sd_bus_call(bus, m, 0, &error, &reply);
if (r < 0) {
log_error("Failed to get machine PTY: %s", bus_error_message(&error, -r));
return r;
}
r = sd_bus_message_read(reply, "hs", &master, &pty);
if (r < 0)
return bus_log_parse_error(r);
assert_se(sigemptyset(&mask) == 0);
sigset_add_many(&mask, SIGWINCH, SIGTERM, SIGINT, -1);
assert_se(sigprocmask(SIG_BLOCK, &mask, NULL) == 0);
log_info("Connected to machine %s. Press ^] three times within 1s to exit session.", argv[1]);
sd_event_add_signal(event, NULL, SIGINT, NULL, NULL);
sd_event_add_signal(event, NULL, SIGTERM, NULL, NULL);
r = pty_forward_new(event, master, true, &forward);
if (r < 0)
return log_error_errno(r, "Failed to create PTY forwarder: %m");
r = sd_event_loop(event);
if (r < 0)
return log_error_errno(r, "Failed to run event loop: %m");
pty_forward_get_last_char(forward, &last_char);
machine_died = pty_forward_get_ignore_vhangup(forward) == 0;
forward = pty_forward_free(forward);
if (last_char != '\n')
fputc('\n', stdout);
if (machine_died)
log_info("Machine %s terminated.", argv[1]);
else
log_info("Connection to machine %s terminated.", argv[1]);
sd_event_get_exit_code(event, &ret);
return ret;
}
static int remove_image(int argc, char *argv[], void *userdata) {
_cleanup_bus_error_free_ sd_bus_error error = SD_BUS_ERROR_NULL;
sd_bus *bus = userdata;
int r, i;
assert(bus);
polkit_agent_open_if_enabled();
for (i = 1; i < argc; i++) {
r = sd_bus_call_method(
bus,
"org.freedesktop.machine1",
"/org/freedesktop/machine1",
"org.freedesktop.machine1.Manager",
"RemoveImage",
&error,
NULL,
"s", argv[i]);
if (r < 0) {
log_error("Could not remove image: %s", bus_error_message(&error, -r));
return r;
}
}
return 0;
}
static int rename_image(int argc, char *argv[], void *userdata) {
_cleanup_bus_error_free_ sd_bus_error error = SD_BUS_ERROR_NULL;
sd_bus *bus = userdata;
int r;
polkit_agent_open_if_enabled();
r = sd_bus_call_method(
bus,
"org.freedesktop.machine1",
"/org/freedesktop/machine1",
"org.freedesktop.machine1.Manager",
"RenameImage",
&error,
NULL,
"ss", argv[1], argv[2]);
if (r < 0) {
log_error("Could not rename image: %s", bus_error_message(&error, -r));
return r;
}
return 0;
}
static int clone_image(int argc, char *argv[], void *userdata) {
_cleanup_bus_error_free_ sd_bus_error error = SD_BUS_ERROR_NULL;
sd_bus *bus = userdata;
int r;
polkit_agent_open_if_enabled();
r = sd_bus_call_method(
bus,
"org.freedesktop.machine1",
"/org/freedesktop/machine1",
"org.freedesktop.machine1.Manager",
"CloneImage",
&error,
NULL,
"ssb", argv[1], argv[2], arg_read_only);
if (r < 0) {
log_error("Could not clone image: %s", bus_error_message(&error, -r));
return r;
}
return 0;
}
static int read_only_image(int argc, char *argv[], void *userdata) {
_cleanup_bus_error_free_ sd_bus_error error = SD_BUS_ERROR_NULL;
sd_bus *bus = userdata;
int b = true, r;
if (argc > 2) {
b = parse_boolean(argv[2]);
if (b < 0) {
log_error("Failed to parse boolean argument: %s", argv[2]);
return -EINVAL;
}
}
polkit_agent_open_if_enabled();
r = sd_bus_call_method(
bus,
"org.freedesktop.machine1",
"/org/freedesktop/machine1",
"org.freedesktop.machine1.Manager",
"MarkImageReadOnly",
&error,
NULL,
"sb", argv[1], b);
if (r < 0) {
log_error("Could not mark image read-only: %s", bus_error_message(&error, -r));
return r;
}
return 0;
}
static int start_machine(int argc, char *argv[], void *userdata) {
_cleanup_bus_error_free_ sd_bus_error error = SD_BUS_ERROR_NULL;
_cleanup_(bus_wait_for_jobs_freep) BusWaitForJobs *w = NULL;
sd_bus *bus = userdata;
int r, i;
assert(bus);
polkit_agent_open_if_enabled();
r = bus_wait_for_jobs_new(bus, &w);
if (r < 0)
return log_oom();
for (i = 1; i < argc; i++) {
_cleanup_bus_message_unref_ sd_bus_message *m = NULL, *reply = NULL;
_cleanup_free_ char *e = NULL, *unit = NULL;
const char *object;
if (!machine_name_is_valid(argv[i])) {
log_error("Invalid machine name %s.", argv[i]);
return -EINVAL;
}
e = unit_name_escape(argv[i]);
if (!e)
return log_oom();
unit = unit_name_build("systemd-nspawn", e, ".service");
if (!unit)
return log_oom();
r = sd_bus_message_new_method_call(
bus,
&m,
"org.freedesktop.systemd1",
"/org/freedesktop/systemd1",
"org.freedesktop.systemd1.Manager",
"StartUnit");
if (r < 0)
return bus_log_create_error(r);
r = sd_bus_message_set_allow_interactive_authorization(m, arg_ask_password);
if (r < 0)
return bus_log_create_error(r);
r = sd_bus_message_append(m, "ss", unit, "fail");
if (r < 0)
return bus_log_create_error(r);
r = sd_bus_call(bus, m, 0, &error, &reply);
if (r < 0) {
log_error("Failed to start unit: %s", bus_error_message(&error, -r));
return r;
}
r = sd_bus_message_read(reply, "o", &object);
if (r < 0)
return bus_log_parse_error(r);
r = bus_wait_for_jobs_add(w, object);
if (r < 0)
return log_oom();
}
r = bus_wait_for_jobs(w, arg_quiet);
if (r < 0)
return r;
return 0;
}
static int enable_machine(int argc, char *argv[], void *userdata) {
_cleanup_bus_message_unref_ sd_bus_message *m = NULL, *reply = NULL;
_cleanup_bus_error_free_ sd_bus_error error = SD_BUS_ERROR_NULL;
int carries_install_info = 0;
const char *method = NULL;
sd_bus *bus = userdata;
int r, i;
assert(bus);
polkit_agent_open_if_enabled();
method = streq(argv[0], "enable") ? "EnableUnitFiles" : "DisableUnitFiles";
r = sd_bus_message_new_method_call(
bus,
&m,
"org.freedesktop.systemd1",
"/org/freedesktop/systemd1",
"org.freedesktop.systemd1.Manager",
method);
if (r < 0)
return bus_log_create_error(r);
r = sd_bus_message_set_allow_interactive_authorization(m, arg_ask_password);
if (r < 0)
return bus_log_create_error(r);
r = sd_bus_message_open_container(m, 'a', "s");
if (r < 0)
return bus_log_create_error(r);
for (i = 1; i < argc; i++) {
_cleanup_free_ char *e = NULL, *unit = NULL;
if (!machine_name_is_valid(argv[i])) {
log_error("Invalid machine name %s.", argv[i]);
return -EINVAL;
}
e = unit_name_escape(argv[i]);
if (!e)
return log_oom();
unit = unit_name_build("systemd-nspawn", e, ".service");
if (!unit)
return log_oom();
r = sd_bus_message_append(m, "s", unit);
if (r < 0)
return bus_log_create_error(r);
}
r = sd_bus_message_close_container(m);
if (r < 0)
return bus_log_create_error(r);
if (streq(argv[0], "enable"))
r = sd_bus_message_append(m, "bb", false, false);
else
r = sd_bus_message_append(m, "b", false);
if (r < 0)
return bus_log_create_error(r);
r = sd_bus_call(bus, m, 0, &error, &reply);
if (r < 0) {
log_error("Failed to enable or disable unit: %s", bus_error_message(&error, -r));
return r;
}
if (streq(argv[0], "enable")) {
r = sd_bus_message_read(reply, "b", carries_install_info);
if (r < 0)
return bus_log_parse_error(r);
}
r = bus_deserialize_and_dump_unit_file_changes(reply, arg_quiet);
if (r < 0)
return r;
m = sd_bus_message_unref(m);
r = sd_bus_message_new_method_call(
bus,
&m,
"org.freedesktop.systemd1",
"/org/freedesktop/systemd1",
"org.freedesktop.systemd1.Manager",
"Reload");
if (r < 0)
return bus_log_create_error(r);
r = sd_bus_message_set_allow_interactive_authorization(m, arg_ask_password);
if (r < 0)
return bus_log_create_error(r);
r = sd_bus_call(bus, m, 0, &error, NULL);
if (r < 0) {
log_error("Failed to reload daemon: %s", bus_error_message(&error, -r));
return r;
}
return 0;
}
typedef struct PullContext {
const char *path;
int result;
} PullContext;
static int match_log_message(sd_bus *bus, sd_bus_message *m, void *userdata, sd_bus_error *error) {
PullContext *c = userdata;
const char *line;
unsigned priority;
int r;
assert(bus);
assert(m);
r = sd_bus_message_read(m, "us", &priority, &line);
if (r < 0) {
bus_log_parse_error(r);
return 0;
}
if (!streq_ptr(c->path, sd_bus_message_get_path(m)))
return 0;
if (arg_quiet && LOG_PRI(priority) >= LOG_INFO)
return 0;
log_full(priority, "%s", line);
return 0;
}
static int match_transfer_removed(sd_bus *bus, sd_bus_message *m, void *userdata, sd_bus_error *error) {
PullContext *c = userdata;
const char *path, *result;
uint32_t id;
int r;
assert(bus);
assert(m);
assert(c);
r = sd_bus_message_read(m, "uos", &id, &path, &result);
if (r < 0) {
bus_log_parse_error(r);
return 0;
}
if (!streq_ptr(c->path, path))
return 0;
c->result = streq_ptr(result, "done");
return 0;
}
static int pull_image_common(sd_bus *bus, sd_bus_message *m) {
_cleanup_bus_slot_unref_ sd_bus_slot *slot_job_removed = NULL, *slot_log_message = NULL;
_cleanup_bus_error_free_ sd_bus_error error = SD_BUS_ERROR_NULL;
_cleanup_bus_message_unref_ sd_bus_message *reply = NULL;
PullContext c = {
.result = -1,
};
uint32_t id;
int r;
assert(bus);
assert(m);
polkit_agent_open_if_enabled();
r = sd_bus_message_set_allow_interactive_authorization(m, arg_ask_password);
if (r < 0)
return bus_log_create_error(r);
r = sd_bus_add_match(
bus,
&slot_job_removed,
"type='signal',"
"sender='org.freedesktop.import1',"
"interface='org.freedesktop.import1.Manager',"
"member='TransferRemoved',"
"path='/org/freedesktop/import1'",
match_transfer_removed, &c);
if (r < 0)
return log_error_errno(r, "Failed to install match: %m");
r = sd_bus_add_match(
bus,
&slot_log_message,
"type='signal',"
"sender='org.freedesktop.import1',"
"interface='org.freedesktop.import1.Transfer',"
"member='LogMessage'",
match_log_message, &c);
if (r < 0)
return log_error_errno(r, "Failed to install match: %m");
r = sd_bus_call(bus, m, 0, &error, &reply);
if (r < 0) {
log_error("Failed pull image: %s", bus_error_message(&error, -r));
return r;
}
r = sd_bus_message_read(reply, "uo", &id, &c.path);
if (r < 0)
return bus_log_parse_error(r);
for (;;) {
r = sd_bus_process(bus, NULL);
if (r < 0)
return r;
/* The match sets this to NULL when we are done */
if (c.result >= 0)
break;
r = sd_bus_wait(bus, (uint64_t) -1);
if (r < 0)
return r;
}
return c.result ? 0 : -EINVAL;
}
static int pull_tar(int argc, char *argv[], void *userdata) {
_cleanup_bus_message_unref_ sd_bus_message *m = NULL;
_cleanup_free_ char *l = NULL, *ll = NULL;
const char *local, *remote;
sd_bus *bus = userdata;
int r;
assert(bus);
remote = argv[1];
if (!http_url_is_valid(remote)) {
log_error("URL '%s' is not valid.", remote);
return -EINVAL;
}
if (argc >= 3)
local = argv[2];
else {
r = import_url_last_component(remote, &l);
if (r < 0)
return log_error_errno(r, "Failed to get final component of URL: %m");
local = l;
}
if (isempty(local) || streq(local, "-"))
local = NULL;
if (local) {
r = tar_strip_suffixes(local, &ll);
if (r < 0)
return log_error_errno(r, "Failed to strip tar suffixes: %m");
local = ll;
if (!machine_name_is_valid(local)) {
log_error("Local name %s is not a suitable machine name.", local);
return -EINVAL;
}
}
r = sd_bus_message_new_method_call(
bus,
&m,
"org.freedesktop.import1",
"/org/freedesktop/import1",
"org.freedesktop.import1.Manager",
"PullTar");
if (r < 0)
return bus_log_create_error(r);
r = sd_bus_message_append(
m,
"sssb",
remote,
local,
arg_verify,
arg_force);
if (r < 0)
return bus_log_create_error(r);
return pull_image_common(bus, m);
}
static int pull_raw(int argc, char *argv[], void *userdata) {
_cleanup_bus_message_unref_ sd_bus_message *m = NULL;
_cleanup_free_ char *l = NULL, *ll = NULL;
const char *local, *remote;
sd_bus *bus = userdata;
int r;
assert(bus);
remote = argv[1];
if (!http_url_is_valid(remote)) {
log_error("URL '%s' is not valid.", remote);
return -EINVAL;
}
if (argc >= 3)
local = argv[2];
else {
r = import_url_last_component(remote, &l);
if (r < 0)
return log_error_errno(r, "Failed to get final component of URL: %m");
local = l;
}
if (isempty(local) || streq(local, "-"))
local = NULL;
if (local) {
r = raw_strip_suffixes(local, &ll);
if (r < 0)
return log_error_errno(r, "Failed to strip tar suffixes: %m");
local = ll;
if (!machine_name_is_valid(local)) {
log_error("Local name %s is not a suitable machine name.", local);
return -EINVAL;
}
}
r = sd_bus_message_new_method_call(
bus,
&m,
"org.freedesktop.import1",
"/org/freedesktop/import1",
"org.freedesktop.import1.Manager",
"PullRaw");
if (r < 0)
return bus_log_create_error(r);
r = sd_bus_message_append(
m,
"sssb",
remote,
local,
arg_verify,
arg_force);
if (r < 0)
return bus_log_create_error(r);
return pull_image_common(bus, m);
}
static int pull_dkr(int argc, char *argv[], void *userdata) {
_cleanup_bus_message_unref_ sd_bus_message *m = NULL;
_cleanup_free_ char *l = NULL, *ll = NULL;
const char *local, *remote, *tag;
sd_bus *bus = userdata;
int r;
if (!streq_ptr(arg_dkr_index_url, "no")) {
log_error("Imports from DKR do not support image verification, please pass --verify=no.");
return -EINVAL;
}
remote = argv[1];
tag = strchr(remote, ':');
if (tag) {
remote = strndupa(remote, tag - remote);
tag++;
}
if (!dkr_name_is_valid(remote)) {
log_error("DKR name '%s' is invalid.", remote);
return -EINVAL;
}
if (tag && !dkr_tag_is_valid(tag)) {
log_error("DKR tag '%s' is invalid.", remote);
return -EINVAL;
}
if (argc >= 3)
local = argv[2];
else {
local = strchr(remote, '/');
if (local)
local++;
else
local = remote;
}
if (isempty(local) || streq(local, "-"))
local = NULL;
if (local) {
if (!machine_name_is_valid(local)) {
log_error("Local name %s is not a suitable machine name.", local);
return -EINVAL;
}
}
r = sd_bus_message_new_method_call(
bus,
&m,
"org.freedesktop.import1",
"/org/freedesktop/import1",
"org.freedesktop.import1.Manager",
"PullDkr");
if (r < 0)
return bus_log_create_error(r);
r = sd_bus_message_append(
m,
"sssssb",
arg_dkr_index_url,
remote,
tag,
local,
arg_verify,
arg_force);
if (r < 0)
return bus_log_create_error(r);
return pull_image_common(bus, m);
}
typedef struct TransferInfo {
uint32_t id;
const char *type;
const char *remote;
const char *local;
} TransferInfo;
static int compare_transfer_info(const void *a, const void *b) {
const TransferInfo *x = a, *y = b;
return strcmp(x->local, y->local);
}
static int list_transfers(int argc, char *argv[], void *userdata) {
size_t max_type = strlen("TYPE"), max_local = strlen("LOCAL"), max_remote = strlen("REMOTE");
_cleanup_bus_message_unref_ sd_bus_message *reply = NULL;
_cleanup_bus_error_free_ sd_bus_error error = SD_BUS_ERROR_NULL;
_cleanup_free_ TransferInfo *transfers = NULL;
size_t n_transfers = 0, n_allocated = 0, j;
const char *type, *remote, *local, *object;
sd_bus *bus = userdata;
uint32_t id, max_id = 0;
int r;
pager_open_if_enabled();
r = sd_bus_call_method(
bus,
"org.freedesktop.import1",
"/org/freedesktop/import1",
"org.freedesktop.import1.Manager",
"ListTransfers",
&error,
&reply,
NULL);
if (r < 0) {
log_error("Could not get transfers: %s", bus_error_message(&error, -r));
return r;
}
r = sd_bus_message_enter_container(reply, 'a', "(ussso)");
if (r < 0)
return bus_log_parse_error(r);
while ((r = sd_bus_message_read(reply, "(ussso)", &id, &type, &remote, &local, &object)) > 0) {
size_t l;
if (!GREEDY_REALLOC(transfers, n_allocated, n_transfers + 1))
return log_oom();
transfers[n_transfers].id = id;
transfers[n_transfers].type = type;
transfers[n_transfers].remote = remote;
transfers[n_transfers].local = local;
l = strlen(type);
if (l > max_type)
max_type = l;
l = strlen(remote);
if (l > max_remote)
max_remote = l;
l = strlen(local);
if (l > max_local)
max_local = l;
if (id > max_id)
max_id = id;
n_transfers ++;
}
if (r < 0)
return bus_log_parse_error(r);
r = sd_bus_message_exit_container(reply);
if (r < 0)
return bus_log_parse_error(r);
qsort_safe(transfers, n_transfers, sizeof(TransferInfo), compare_transfer_info);
if (arg_legend)
printf("%-*s %-*s %-*s %-*s\n",
(int) MAX(2U, DECIMAL_STR_WIDTH(max_id)), "ID",
(int) max_type, "TYPE",
(int) max_local, "LOCAL",
(int) max_remote, "REMOTE");
for (j = 0; j < n_transfers; j++)
printf("%*" PRIu32 " %-*s %-*s %-*s\n",
(int) MAX(2U, DECIMAL_STR_WIDTH(max_id)), transfers[j].id,
(int) max_type, transfers[j].type,
(int) max_local, transfers[j].local,
(int) max_remote, transfers[j].remote);
if (arg_legend)
printf("\n%zu transfers listed.\n", n_transfers);
return 0;
}
static int cancel_transfer(int argc, char *argv[], void *userdata) {
_cleanup_bus_error_free_ sd_bus_error error = SD_BUS_ERROR_NULL;
sd_bus *bus = userdata;
int r, i;
assert(bus);
polkit_agent_open_if_enabled();
for (i = 1; i < argc; i++) {
uint32_t id;
r = safe_atou32(argv[i], &id);
if (r < 0)
return log_error_errno(r, "Failed to parse transfer id: %s", argv[i]);
r = sd_bus_call_method(
bus,
"org.freedesktop.import1",
"/org/freedesktop/import1",
"org.freedesktop.import1.Manager",
"CancelTransfer",
&error,
NULL,
"u", id);
if (r < 0) {
log_error("Could not cancel transfer: %s", bus_error_message(&error, -r));
return r;
}
}
return 0;
}
static int help(int argc, char *argv[], void *userdata) {
printf("%s [OPTIONS...] {COMMAND} ...\n\n"
"Send control commands to or query the virtual machine and container\n"
"registration manager.\n\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"
" -p --property=NAME Show only properties by this name\n"
" -q --quiet Suppress output\n"
" -a --all Show all properties, including empty ones\n"
" -l --full Do not ellipsize output\n"
" --kill-who=WHO Who to send signal to\n"
" -s --signal=SIGNAL Which signal to send\n"
" --read-only Create read-only bind mount\n"
" --mkdir Create directory before bind mounting, if missing\n"
" -n --lines=INTEGER Number of journal entries to show\n"
" -o --output=STRING Change journal output mode (short,\n"
" short-monotonic, verbose, export, json,\n"
" json-pretty, json-sse, cat)\n"
" --verify=MODE Verification mode for downloaded images (no, sum,\n"
" signature)\n"
" --force Download image even if already exists\n"
" --dkr-index-url=URL Specify the index URL to use for DKR image\n"
" downloads\n\n"
"Machine Commands:\n"
" list List running VMs and containers\n"
" status NAME... Show VM/container details\n"
" show NAME... Show properties of one or more VMs/containers\n"
" start NAME... Start container as a service\n"
" login NAME Get a login prompt on a container\n"
" enable NAME... Enable automatic container start at boot\n"
" disable NAME... Disable automatic container start at boot\n"
" poweroff NAME... Power off one or more containers\n"
" reboot NAME... Reboot one or more containers\n"
" terminate NAME... Terminate one or more VMs/containers\n"
" kill NAME... Send signal to processes of a VM/container\n"
" copy-to NAME PATH [PATH] Copy files from the host to a container\n"
" copy-from NAME PATH [PATH] Copy files from a container to the host\n"
" bind NAME PATH [PATH] Bind mount a path from the host into a container\n\n"
"Image Commands:\n"
" list-images Show available images\n"
" image-status NAME... Show image details\n"
" show-image NAME... Show properties of image\n"
" clone NAME NAME Clone an image\n"
" rename NAME NAME Rename an image\n"
" read-only NAME [BOOL] Mark or unmark image read-only\n"
" remove NAME... Remove an image\n\n"
"Transfer Commands:\n"
" pull-tar URL [NAME] Download a TAR image\n"
" pull-raw URL [NAME] Download a RAW image\n"
" pull-dkr REMOTE [NAME] Download a DKR image\n"
" list-transfers Show list of current downloads\n"
" cancel-transfer Cancel a download\n"
, program_invocation_short_name);
return 0;
}
static int parse_argv(int argc, char *argv[]) {
enum {
ARG_VERSION = 0x100,
ARG_NO_PAGER,
ARG_NO_LEGEND,
ARG_KILL_WHO,
ARG_READ_ONLY,
ARG_MKDIR,
ARG_NO_ASK_PASSWORD,
ARG_VERIFY,
ARG_FORCE,
ARG_DKR_INDEX_URL,
};
static const struct option options[] = {
{ "help", no_argument, NULL, 'h' },
{ "version", no_argument, NULL, ARG_VERSION },
{ "property", required_argument, NULL, 'p' },
{ "all", no_argument, NULL, 'a' },
{ "full", no_argument, NULL, 'l' },
{ "no-pager", no_argument, NULL, ARG_NO_PAGER },
{ "no-legend", no_argument, NULL, ARG_NO_LEGEND },
{ "kill-who", required_argument, NULL, ARG_KILL_WHO },
{ "signal", required_argument, NULL, 's' },
{ "host", required_argument, NULL, 'H' },
{ "machine", required_argument, NULL, 'M' },
{ "read-only", no_argument, NULL, ARG_READ_ONLY },
{ "mkdir", no_argument, NULL, ARG_MKDIR },
{ "quiet", no_argument, NULL, 'q' },
{ "lines", required_argument, NULL, 'n' },
{ "output", required_argument, NULL, 'o' },
{ "no-ask-password", no_argument, NULL, ARG_NO_ASK_PASSWORD },
{ "verify", required_argument, NULL, ARG_VERIFY },
{ "force", no_argument, NULL, ARG_FORCE },
{ "dkr-index-url", required_argument, NULL, ARG_DKR_INDEX_URL },
{}
};
int c, r;
assert(argc >= 0);
assert(argv);
while ((c = getopt_long(argc, argv, "hp:als:H:M:qn:o:", options, NULL)) >= 0)
switch (c) {
case 'h':
return help(0, NULL, NULL);
case ARG_VERSION:
puts(PACKAGE_STRING);
puts(SYSTEMD_FEATURES);
return 0;
case 'p':
r = strv_extend(&arg_property, optarg);
if (r < 0)
return log_oom();
/* If the user asked for a particular
* property, show it to him, even if it is
* empty. */
arg_all = true;
break;
case 'a':
arg_all = true;
break;
case 'l':
arg_full = true;
break;
case 'n':
if (safe_atou(optarg, &arg_lines) < 0) {
log_error("Failed to parse lines '%s'", optarg);
return -EINVAL;
}
break;
case 'o':
arg_output = output_mode_from_string(optarg);
if (arg_output < 0) {
log_error("Unknown output '%s'.", optarg);
return -EINVAL;
}
break;
case ARG_NO_PAGER:
arg_no_pager = true;
break;
case ARG_NO_LEGEND:
arg_legend = false;
break;
case ARG_KILL_WHO:
arg_kill_who = optarg;
break;
case 's':
arg_signal = signal_from_string_try_harder(optarg);
if (arg_signal < 0) {
log_error("Failed to parse signal string %s.", optarg);
return -EINVAL;
}
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 ARG_READ_ONLY:
arg_read_only = true;
break;
case ARG_MKDIR:
arg_mkdir = true;
break;
case 'q':
arg_quiet = true;
break;
case ARG_VERIFY:
arg_verify = optarg;
break;
case ARG_FORCE:
arg_force = true;
break;
case ARG_DKR_INDEX_URL:
if (!http_url_is_valid(optarg)) {
log_error("Index URL is invalid: %s", optarg);
return -EINVAL;
}
arg_dkr_index_url = optarg;
break;
case '?':
return -EINVAL;
default:
assert_not_reached("Unhandled option");
}
return 1;
}
static int machinectl_main(int argc, char *argv[], sd_bus *bus) {
static const Verb verbs[] = {
{ "help", VERB_ANY, VERB_ANY, 0, help },
{ "list", VERB_ANY, 1, VERB_DEFAULT, list_machines },
{ "list-images", VERB_ANY, 1, 0, list_images },
{ "status", 2, VERB_ANY, 0, show_machine },
{ "image-status", 2, VERB_ANY, 0, show_image },
{ "show", VERB_ANY, VERB_ANY, 0, show_machine },
{ "show-image", VERB_ANY, VERB_ANY, 0, show_image },
{ "terminate", 2, VERB_ANY, 0, terminate_machine },
{ "reboot", 2, VERB_ANY, 0, reboot_machine },
{ "poweroff", 2, VERB_ANY, 0, poweroff_machine },
{ "kill", 2, VERB_ANY, 0, kill_machine },
{ "login", 2, 2, 0, login_machine },
{ "bind", 3, 4, 0, bind_mount },
{ "copy-to", 3, 4, 0, copy_files },
{ "copy-from", 3, 4, 0, copy_files },
{ "remove", 2, VERB_ANY, 0, remove_image },
{ "rename", 3, 3, 0, rename_image },
{ "clone", 3, 3, 0, clone_image },
{ "read-only", 2, 3, 0, read_only_image },
{ "start", 2, VERB_ANY, 0, start_machine },
{ "enable", 2, VERB_ANY, 0, enable_machine },
{ "disable", 2, VERB_ANY, 0, enable_machine },
{ "pull-tar", 2, 3, 0, pull_tar },
{ "pull-raw", 2, 3, 0, pull_raw },
{ "pull-dkr", 2, 3, 0, pull_dkr },
{ "list-transfers", VERB_ANY, 1, 0, list_transfers },
{ "cancel-transfer", 2, VERB_ANY, 0, cancel_transfer },
{}
};
return dispatch_verb(argc, argv, verbs, bus);
}
int main(int argc, char*argv[]) {
_cleanup_bus_close_unref_ sd_bus *bus = NULL;
int r;
setlocale(LC_ALL, "");
log_parse_environment();
log_open();
r = parse_argv(argc, argv);
if (r <= 0)
goto finish;
r = bus_open_transport(arg_transport, arg_host, false, &bus);
if (r < 0) {
log_error_errno(r, "Failed to create bus connection: %m");
goto finish;
}
r = machinectl_main(argc, argv, bus);
finish:
pager_close();
polkit_agent_close();
strv_free(arg_property);
return r < 0 ? EXIT_FAILURE : EXIT_SUCCESS;
}
Reference in a new issue View git blame Copy permalink