diff options
Diffstat (limited to 'src/grp-machine/machinectl/machinectl.c')
| -rw-r--r-- | src/grp-machine/machinectl/machinectl.c | 3052 |
1 files changed, 3052 insertions, 0 deletions
diff --git a/src/grp-machine/machinectl/machinectl.c b/src/grp-machine/machinectl/machinectl.c new file mode 100644 index 0000000000..733d73435e --- /dev/null +++ b/src/grp-machine/machinectl/machinectl.c @@ -0,0 +1,3052 @@ +/*** + 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 <arpa/inet.h> +#include <errno.h> +#include <fcntl.h> +#include <getopt.h> +#include <locale.h> +#include <net/if.h> +#include <netinet/in.h> +#include <string.h> +#include <sys/mount.h> +#include <sys/socket.h> +#include <unistd.h> + +#include <systemd/sd-bus.h> + +#include "sd-bus/bus-common-errors.h" +#include "sd-bus/bus-error.h" +#include "sd-bus/bus-util.h" +#include "systemd-basic/alloc-util.h" +#include "systemd-basic/cgroup-util.h" +#include "systemd-basic/copy.h" +#include "systemd-basic/env-util.h" +#include "systemd-basic/fd-util.h" +#include "systemd-basic/hostname-util.h" +#include "systemd-basic/log.h" +#include "systemd-basic/macro.h" +#include "systemd-basic/mkdir.h" +#include "systemd-basic/parse-util.h" +#include "systemd-basic/path-util.h" +#include "systemd-basic/process-util.h" +#include "systemd-basic/signal-util.h" +#include "systemd-basic/stdio-util.h" +#include "systemd-basic/strv.h" +#include "systemd-basic/terminal-util.h" +#include "systemd-basic/unit-name.h" +#include "systemd-basic/util.h" +#include "systemd-basic/verbs.h" +#include "systemd-basic/web-util.h" +#include "systemd-shared/bus-unit-util.h" +#include "systemd-shared/cgroup-show.h" +#include "systemd-shared/import-util.h" +#include "systemd-shared/logs-show.h" +#include "systemd-shared/pager.h" +#include "systemd-shared/ptyfwd.h" +#include "systemd-shared/spawn-polkit-agent.h" + +#define ALL_IP_ADDRESSES -1 + +static char **arg_property = NULL; +static bool arg_all = false; +static bool arg_value = 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 ImportVerify arg_verify = IMPORT_VERIFY_SIGNATURE; +static const char* arg_format = NULL; +static const char *arg_uid = NULL; +static char **arg_setenv = NULL; +static int arg_addrs = 1; + +static int print_addresses(sd_bus *bus, const char *name, int, const char *pr1, const char *pr2, int n_addr); + +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 | + colors_enabled() * OUTPUT_COLOR | + !arg_quiet * OUTPUT_WARN_CUTOFF; +} + +typedef struct MachineInfo { + const char *name; + const char *class; + const char *service; + char *os; + char *version_id; +} 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 void clean_machine_info(MachineInfo *machines, size_t n_machines) { + size_t i; + + if (!machines || n_machines == 0) + return; + + for (i = 0; i < n_machines; i++) { + free(machines[i].os); + free(machines[i].version_id); + } + free(machines); +} + +static int get_os_release_property(sd_bus *bus, const char *name, const char *query, ...) { + _cleanup_(sd_bus_message_unrefp) sd_bus_message *reply = NULL; + const char *k, *v, *iter, **query_res = NULL; + size_t count = 0, awaited_args = 0; + va_list ap; + int r; + + assert(bus); + assert(name); + assert(query); + + NULSTR_FOREACH(iter, query) + awaited_args++; + query_res = newa0(const char *, awaited_args); + + 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) { + count = 0; + NULSTR_FOREACH(iter, query) { + if (streq(k, iter)) { + query_res[count] = v; + break; + } + count++; + } + } + 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); + + va_start(ap, query); + for (count = 0; count < awaited_args; count++) { + char *val, **out; + + out = va_arg(ap, char **); + assert(out); + if (query_res[count]) { + val = strdup(query_res[count]); + if (!val) { + va_end(ap); + return log_oom(); + } + *out = val; + } + } + va_end(ap); + + return 0; +} + +static int list_machines(int argc, char *argv[], void *userdata) { + + size_t max_name = strlen("MACHINE"), max_class = strlen("CLASS"), + max_service = strlen("SERVICE"), max_os = strlen("OS"), max_version_id = strlen("VERSION"); + _cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL; + _cleanup_(sd_bus_message_unrefp) sd_bus_message *reply = NULL; + _cleanup_free_ char *prefix = NULL; + 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(arg_no_pager, false); + + 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 (name[0] == '.' && !arg_all) + continue; + + if (!GREEDY_REALLOC(machines, n_allocated, n_machines + 1)) { + r = log_oom(); + goto out; + } + + machines[n_machines].os = NULL; + machines[n_machines].version_id = NULL; + r = get_os_release_property(bus, name, + "ID\0" "VERSION_ID\0", + &machines[n_machines].os, + &machines[n_machines].version_id); + if (r < 0) + goto out; + + 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; + + l = machines[n_machines].os ? strlen(machines[n_machines].os) : 1; + if (l > max_os) + max_os = l; + + l = machines[n_machines].version_id ? strlen(machines[n_machines].version_id) : 1; + if (l > max_version_id) + max_version_id = l; + + n_machines++; + } + if (r < 0) { + r = bus_log_parse_error(r); + goto out; + } + + r = sd_bus_message_exit_container(reply); + if (r < 0) { + r = bus_log_parse_error(r); + goto out; + } + + qsort_safe(machines, n_machines, sizeof(MachineInfo), compare_machine_info); + + /* Allocate for prefix max characters for all fields + spaces between them + strlen(",\n") */ + r = asprintf(&prefix, "%-*s", + (int) (max_name + + max_class + + max_service + + max_os + + max_version_id + 5 + strlen(",\n")), + ",\n"); + if (r < 0) { + r = log_oom(); + goto out; + } + + if (arg_legend && n_machines > 0) + printf("%-*s %-*s %-*s %-*s %-*s %s\n", + (int) max_name, "MACHINE", + (int) max_class, "CLASS", + (int) max_service, "SERVICE", + (int) max_os, "OS", + (int) max_version_id, "VERSION", + "ADDRESSES"); + + for (j = 0; j < n_machines; j++) { + printf("%-*s %-*s %-*s %-*s %-*s ", + (int) max_name, machines[j].name, + (int) max_class, machines[j].class, + (int) max_service, strdash_if_empty(machines[j].service), + (int) max_os, strdash_if_empty(machines[j].os), + (int) max_version_id, strdash_if_empty(machines[j].version_id)); + + r = print_addresses(bus, machines[j].name, 0, "", prefix, arg_addrs); + if (r == -ENOSYS) + printf("-\n"); + } + + if (arg_legend && n_machines > 0) + printf("\n%zu machines listed.\n", n_machines); + else + printf("No machines.\n"); + +out: + clean_machine_info(machines, n_machines); + return r; +} + +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_(sd_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_(sd_bus_message_unrefp) 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(arg_no_pager, false); + + 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 && n_images > 0) + 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_normal() : "", + (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 && n_images > 0) + printf("\n%zu images listed.\n", n_images); + else + printf("No images.\n"); + + return 0; +} + +static int show_unit_cgroup(sd_bus *bus, const char *unit, pid_t leader) { + _cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL; + _cleanup_(sd_bus_message_unrefp) sd_bus_message *reply = NULL; + _cleanup_free_ char *path = NULL; + const char *cgroup; + int r; + unsigned c; + + assert(bus); + assert(unit); + + path = unit_dbus_path_from_name(unit); + if (!path) + return log_oom(); + + r = sd_bus_get_property( + bus, + "org.freedesktop.systemd1", + path, + unit_dbus_interface_from_name(unit), + "ControlGroup", + &error, + &reply, + "s"); + if (r < 0) + return log_error_errno(r, "Failed to query ControlGroup: %s", bus_error_message(&error, r)); + + r = sd_bus_message_read(reply, "s", &cgroup); + if (r < 0) + return bus_log_parse_error(r); + + if (isempty(cgroup)) + return 0; + + c = columns(); + if (c > 18) + c -= 18; + else + c = 0; + + r = unit_show_processes(bus, unit, cgroup, "\t\t ", c, get_output_flags(), &error); + if (r == -EBADR) { + + if (arg_transport == BUS_TRANSPORT_REMOTE) + return 0; + + /* Fallback for older systemd versions where the GetUnitProcesses() call is not yet available */ + + if (cg_is_empty_recursive(SYSTEMD_CGROUP_CONTROLLER, cgroup) != 0 && leader <= 0) + return 0; + + show_cgroup_and_extra(SYSTEMD_CGROUP_CONTROLLER, cgroup, "\t\t ", c, &leader, leader > 0, get_output_flags()); + } else if (r < 0) + return log_error_errno(r, "Failed to dump process list: %s", bus_error_message(&error, r)); + + return 0; +} + +static int print_addresses(sd_bus *bus, const char *name, int ifi, const char *prefix, const char *prefix2, int n_addr) { + _cleanup_(sd_bus_message_unrefp) sd_bus_message *reply = NULL; + _cleanup_free_ char *addresses = NULL; + bool truncate = false; + 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; + + addresses = strdup(prefix); + if (!addresses) + return log_oom(); + prefix = ""; + + 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 buf_ifi[DECIMAL_STR_MAX(int) + 2], 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); + + if (n_addr != 0) { + if (family == AF_INET6 && ifi > 0) + xsprintf(buf_ifi, "%%%i", ifi); + else + strcpy(buf_ifi, ""); + + if(!strextend(&addresses, prefix, inet_ntop(family, a, buffer, sizeof(buffer)), buf_ifi, NULL)) + return log_oom(); + } else + truncate = true; + + r = sd_bus_message_exit_container(reply); + if (r < 0) + return bus_log_parse_error(r); + + if (prefix != prefix2) + prefix = prefix2; + + if (n_addr > 0) + n_addr -= 1; + } + 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); + + fprintf(stdout, "%s%s\n", addresses, truncate ? "..." : ""); + return 0; +} + +static int print_os_release(sd_bus *bus, const char *name, const char *prefix) { + _cleanup_free_ char *pretty = NULL; + int r; + + assert(bus); + assert(name); + assert(prefix); + + r = get_os_release_property(bus, name, "PRETTY_NAME\0", &pretty, NULL); + if (r < 0) + return 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 machine_status_info_clear(MachineStatusInfo *info) { + if (info) { + free(info->name); + free(info->class); + free(info->service); + free(info->unit); + free(info->root_directory); + free(info->netif); + zero(*info); + } +} + +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_is_null(i->id)) + 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: ", + "\n\t ", + ALL_IP_ADDRESSES); + + 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 }, + {} + }; + + _cleanup_(machine_status_info_clear) 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); + + 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_value, 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_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL; + _cleanup_(sd_bus_message_unrefp) 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(arg_no_pager, false); + + 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 image_status_info_clear(ImageStatusInfo *info) { + if (info) { + free(info->name); + free(info->path); + free(info->type); + zero(*info); + } +} + +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_normal() : ""); + + 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(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) }, + {} + }; + + _cleanup_(image_status_info_clear) ImageStatusInfo info = {}; + int r; + + 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); + + return r; +} + +typedef struct PoolStatusInfo { + char *path; + uint64_t usage; + uint64_t limit; +} PoolStatusInfo; + +static void pool_status_info_clear(PoolStatusInfo *info) { + if (info) { + free(info->path); + zero(*info); + info->usage = -1; + info->limit = -1; + } +} + +static void print_pool_status_info(sd_bus *bus, PoolStatusInfo *i) { + char bs[FORMAT_BYTES_MAX], *s; + + if (i->path) + printf("\t Path: %s\n", i->path); + + s = format_bytes(bs, sizeof(bs), i->usage); + if (s) + printf("\t Usage: %s\n", s); + + s = format_bytes(bs, sizeof(bs), i->limit); + if (s) + printf("\t Limit: %s\n", s); +} + +static int show_pool_info(sd_bus *bus) { + + static const struct bus_properties_map map[] = { + { "PoolPath", "s", NULL, offsetof(PoolStatusInfo, path) }, + { "PoolUsage", "t", NULL, offsetof(PoolStatusInfo, usage) }, + { "PoolLimit", "t", NULL, offsetof(PoolStatusInfo, limit) }, + {} + }; + + _cleanup_(pool_status_info_clear) PoolStatusInfo info = { + .usage = (uint64_t) -1, + .limit = (uint64_t) -1, + }; + int r; + + assert(bus); + + r = bus_map_all_properties(bus, + "org.freedesktop.machine1", + "/org/freedesktop/machine1", + map, + &info); + if (r < 0) + return log_error_errno(r, "Could not get properties: %m"); + + print_pool_status_info(bus, &info); + + return 0; +} + + +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_value, 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_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL; + _cleanup_(sd_bus_message_unrefp) 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(arg_no_pager, false); + + if (argc <= 1) { + + /* If no argument is specified, inspect the manager + * itself */ + + if (properties) + r = show_image_properties(bus, "/org/freedesktop/machine1", &new_line); + else + r = show_pool_info(bus); + 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(bus, path, &new_line); + } + + return r; +} + +static int kill_machine(int argc, char *argv[], void *userdata) { + _cleanup_(sd_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(); + + if (!arg_kill_who) + arg_kill_who = "all"; + + for (i = 1; i < argc; i++) { + 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_(sd_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", + "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 copy_files(int argc, char *argv[], void *userdata) { + _cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL; + _cleanup_(sd_bus_message_unrefp) sd_bus_message *m = NULL; + _cleanup_free_ char *abs_host_path = NULL; + char *dest, *host_path, *container_path; + sd_bus *bus = userdata; + bool copy_from; + int r; + + assert(bus); + + polkit_agent_open_if_enabled(); + + copy_from = streq(argv[0], "copy-from"); + dest = argv[3] ?: argv[2]; + host_path = copy_from ? dest : argv[2]; + container_path = copy_from ? argv[2] : dest; + + if (!path_is_absolute(host_path)) { + r = path_make_absolute_cwd(host_path, &abs_host_path); + if (r < 0) + return log_error_errno(r, "Failed to make path absolute: %m"); + + host_path = abs_host_path; + } + + r = sd_bus_message_new_method_call( + bus, + &m, + "org.freedesktop.machine1", + "/org/freedesktop/machine1", + "org.freedesktop.machine1.Manager", + copy_from ? "CopyFromMachine" : "CopyToMachine"); + if (r < 0) + return bus_log_create_error(r); + + r = sd_bus_message_append( + m, + "sss", + argv[1], + copy_from ? container_path : host_path, + copy_from ? host_path : container_path); + if (r < 0) + return bus_log_create_error(r); + + /* This is a slow operation, hence turn off any method call timeouts */ + r = sd_bus_call(bus, m, USEC_INFINITY, &error, NULL); + if (r < 0) + return log_error_errno(r, "Failed to copy: %s", bus_error_message(&error, r)); + + return 0; +} + +static int bind_mount(int argc, char *argv[], void *userdata) { + _cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL; + sd_bus *bus = userdata; + int r; + + assert(bus); + + polkit_agent_open_if_enabled(); + + r = sd_bus_call_method( + bus, + "org.freedesktop.machine1", + "/org/freedesktop/machine1", + "org.freedesktop.machine1.Manager", + "BindMountMachine", + &error, + NULL, + "sssbb", + argv[1], + argv[2], + argv[3], + arg_read_only, + arg_mkdir); + if (r < 0) { + log_error("Failed to bind mount: %s", bus_error_message(&error, -r)); + return r; + } + + return 0; +} + +static int on_machine_removed(sd_bus_message *m, void *userdata, sd_bus_error *ret_error) { + PTYForward ** forward = (PTYForward**) userdata; + int r; + + 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(sd_bus_message_get_bus(m)), EXIT_FAILURE); + return 0; +} + +static int process_forward(sd_event *event, PTYForward **forward, int master, PTYForwardFlags flags, const char *name) { + char last_char = 0; + bool machine_died; + int ret = 0, r; + + assert(event); + assert(master >= 0); + assert(name); + + assert_se(sigprocmask_many(SIG_BLOCK, NULL, SIGWINCH, SIGTERM, SIGINT, -1) >= 0); + + if (!arg_quiet) { + if (streq(name, ".host")) + log_info("Connected to the local host. Press ^] three times within 1s to exit session."); + else + log_info("Connected to machine %s. Press ^] three times within 1s to exit session.", name); + } + + sd_event_add_signal(event, NULL, SIGINT, NULL, NULL); + sd_event_add_signal(event, NULL, SIGTERM, NULL, NULL); + + r = pty_forward_new(event, master, flags, 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 = + (flags & PTY_FORWARD_IGNORE_VHANGUP) && + pty_forward_get_ignore_vhangup(*forward) == 0; + + *forward = pty_forward_free(*forward); + + if (last_char != '\n') + fputc('\n', stdout); + + if (!arg_quiet) { + if (machine_died) + log_info("Machine %s terminated.", name); + else if (streq(name, ".host")) + log_info("Connection to the local host terminated."); + else + log_info("Connection to machine %s terminated.", name); + } + + sd_event_get_exit_code(event, &ret); + return ret; +} + +static int parse_machine_uid(const char *spec, const char **machine, char **uid) { + /* + * Whatever is specified in the spec takes priority over global arguments. + */ + char *_uid = NULL; + const char *_machine = NULL; + + if (spec) { + const char *at; + + at = strchr(spec, '@'); + if (at) { + if (at == spec) + /* Do the same as ssh and refuse "@host". */ + return -EINVAL; + + _machine = at + 1; + _uid = strndup(spec, at - spec); + if (!_uid) + return -ENOMEM; + } else + _machine = spec; + }; + + if (arg_uid && !_uid) { + _uid = strdup(arg_uid); + if (!_uid) + return -ENOMEM; + } + + *uid = _uid; + *machine = isempty(_machine) ? ".host" : _machine; + return 0; +} + +static int login_machine(int argc, char *argv[], void *userdata) { + _cleanup_(sd_bus_message_unrefp) sd_bus_message *reply = NULL; + _cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL; + _cleanup_(pty_forward_freep) PTYForward *forward = NULL; + _cleanup_(sd_bus_slot_unrefp) sd_bus_slot *slot = NULL; + _cleanup_(sd_event_unrefp) sd_event *event = NULL; + int master = -1, r; + sd_bus *bus = userdata; + const char *pty, *match, *machine; + + assert(bus); + + if (!strv_isempty(arg_setenv) || arg_uid) { + log_error("--setenv= and --uid= are not supported for 'login'. Use 'shell' instead."); + return -EINVAL; + } + + if (arg_transport != BUS_TRANSPORT_LOCAL && + arg_transport != BUS_TRANSPORT_MACHINE) { + log_error("Login only supported on local machines."); + return -EOPNOTSUPP; + } + + 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"); + + machine = argc < 2 || isempty(argv[1]) ? ".host" : argv[1]; + + match = strjoina("type='signal'," + "sender='org.freedesktop.machine1'," + "path='/org/freedesktop/machine1',", + "interface='org.freedesktop.machine1.Manager'," + "member='MachineRemoved'," + "arg0='", machine, "'"); + + 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_call_method( + bus, + "org.freedesktop.machine1", + "/org/freedesktop/machine1", + "org.freedesktop.machine1.Manager", + "OpenMachineLogin", + &error, + &reply, + "s", machine); + if (r < 0) { + log_error("Failed to get login 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); + + return process_forward(event, &forward, master, PTY_FORWARD_IGNORE_VHANGUP, machine); +} + +static int shell_machine(int argc, char *argv[], void *userdata) { + _cleanup_(sd_bus_message_unrefp) sd_bus_message *reply = NULL, *m = NULL; + _cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL; + _cleanup_(pty_forward_freep) PTYForward *forward = NULL; + _cleanup_(sd_bus_slot_unrefp) sd_bus_slot *slot = NULL; + _cleanup_(sd_event_unrefp) sd_event *event = NULL; + int master = -1, r; + sd_bus *bus = userdata; + const char *pty, *match, *machine, *path; + _cleanup_free_ char *uid = NULL; + + assert(bus); + + if (arg_transport != BUS_TRANSPORT_LOCAL && + arg_transport != BUS_TRANSPORT_MACHINE) { + log_error("Shell only supported on local machines."); + return -EOPNOTSUPP; + } + + /* Pass $TERM to shell session, if not explicitly specified. */ + if (!strv_find_prefix(arg_setenv, "TERM=")) { + const char *t; + + t = strv_find_prefix(environ, "TERM="); + if (t) { + if (strv_extend(&arg_setenv, t) < 0) + return log_oom(); + } + } + + 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"); + + r = parse_machine_uid(argc >= 2 ? argv[1] : NULL, &machine, &uid); + if (r < 0) + return log_error_errno(r, "Failed to parse machine specification: %m"); + + match = strjoina("type='signal'," + "sender='org.freedesktop.machine1'," + "path='/org/freedesktop/machine1',", + "interface='org.freedesktop.machine1.Manager'," + "member='MachineRemoved'," + "arg0='", machine, "'"); + + 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", + "OpenMachineShell"); + if (r < 0) + return bus_log_create_error(r); + + path = argc < 3 || isempty(argv[2]) ? NULL : argv[2]; + + r = sd_bus_message_append(m, "sss", machine, uid, path); + if (r < 0) + return bus_log_create_error(r); + + r = sd_bus_message_append_strv(m, strv_length(argv) <= 3 ? NULL : argv + 2); + if (r < 0) + return bus_log_create_error(r); + + r = sd_bus_message_append_strv(m, arg_setenv); + 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 shell 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); + + return process_forward(event, &forward, master, 0, machine); +} + +static int remove_image(int argc, char *argv[], void *userdata) { + sd_bus *bus = userdata; + int r, i; + + assert(bus); + + polkit_agent_open_if_enabled(); + + for (i = 1; i < argc; i++) { + _cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL; + _cleanup_(sd_bus_message_unrefp) sd_bus_message *m = NULL; + + r = sd_bus_message_new_method_call( + bus, + &m, + "org.freedesktop.machine1", + "/org/freedesktop/machine1", + "org.freedesktop.machine1.Manager", + "RemoveImage"); + if (r < 0) + return bus_log_create_error(r); + + r = sd_bus_message_append(m, "s", argv[i]); + if (r < 0) + return bus_log_create_error(r); + + /* This is a slow operation, hence turn off any method call timeouts */ + r = sd_bus_call(bus, m, USEC_INFINITY, &error, NULL); + if (r < 0) + return log_error_errno(r, "Could not remove image: %s", bus_error_message(&error, r)); + } + + return 0; +} + +static int rename_image(int argc, char *argv[], void *userdata) { + _cleanup_(sd_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_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL; + _cleanup_(sd_bus_message_unrefp) sd_bus_message *m = NULL; + sd_bus *bus = userdata; + int r; + + polkit_agent_open_if_enabled(); + + r = sd_bus_message_new_method_call( + bus, + &m, + "org.freedesktop.machine1", + "/org/freedesktop/machine1", + "org.freedesktop.machine1.Manager", + "CloneImage"); + if (r < 0) + return bus_log_create_error(r); + + r = sd_bus_message_append(m, "ssb", argv[1], argv[2], arg_read_only); + if (r < 0) + return bus_log_create_error(r); + + /* This is a slow operation, hence turn off any method call timeouts */ + r = sd_bus_call(bus, m, USEC_INFINITY, &error, NULL); + if (r < 0) + return log_error_errno(r, "Could not clone image: %s", bus_error_message(&error, r)); + + return 0; +} + +static int read_only_image(int argc, char *argv[], void *userdata) { + _cleanup_(sd_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 image_exists(sd_bus *bus, const char *name) { + _cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL; + int r; + + assert(bus); + assert(name); + + r = sd_bus_call_method( + bus, + "org.freedesktop.machine1", + "/org/freedesktop/machine1", + "org.freedesktop.machine1.Manager", + "GetImage", + &error, + NULL, + "s", name); + if (r < 0) { + if (sd_bus_error_has_name(&error, BUS_ERROR_NO_SUCH_IMAGE)) + return 0; + + return log_error_errno(r, "Failed to check whether image %s exists: %s", name, bus_error_message(&error, -r)); + } + + return 1; +} + +static int make_service_name(const char *name, char **ret) { + int r; + + assert(name); + assert(ret); + + if (!machine_name_is_valid(name)) { + log_error("Invalid machine name %s.", name); + return -EINVAL; + } + + r = unit_name_build("systemd-nspawn", name, ".service", ret); + if (r < 0) + return log_error_errno(r, "Failed to build unit name: %m"); + + return 0; +} + +static int start_machine(int argc, char *argv[], void *userdata) { + _cleanup_(sd_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_(sd_bus_message_unrefp) sd_bus_message *reply = NULL; + _cleanup_free_ char *unit = NULL; + const char *object; + + r = make_service_name(argv[i], &unit); + if (r < 0) + return r; + + r = image_exists(bus, argv[i]); + if (r < 0) + return r; + if (r == 0) { + log_error("Machine image '%s' does not exist.", argv[1]); + return -ENXIO; + } + + r = sd_bus_call_method( + bus, + "org.freedesktop.systemd1", + "/org/freedesktop/systemd1", + "org.freedesktop.systemd1.Manager", + "StartUnit", + &error, + &reply, + "ss", unit, "fail"); + 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, NULL); + if (r < 0) + return r; + + return 0; +} + +static int enable_machine(int argc, char *argv[], void *userdata) { + _cleanup_(sd_bus_message_unrefp) sd_bus_message *m = NULL, *reply = NULL; + _cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL; + UnitFileChange *changes = NULL; + unsigned n_changes = 0; + 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_open_container(m, 'a', "s"); + if (r < 0) + return bus_log_create_error(r); + + for (i = 1; i < argc; i++) { + _cleanup_free_ char *unit = NULL; + + r = make_service_name(argv[i], &unit); + if (r < 0) + return r; + + r = image_exists(bus, argv[i]); + if (r < 0) + return r; + if (r == 0) { + log_error("Machine image '%s' does not exist.", argv[1]); + return -ENXIO; + } + + 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, &changes, &n_changes); + if (r < 0) + goto finish; + + r = sd_bus_call_method( + bus, + "org.freedesktop.systemd1", + "/org/freedesktop/systemd1", + "org.freedesktop.systemd1.Manager", + "Reload", + &error, + NULL, + NULL); + if (r < 0) { + log_error("Failed to reload daemon: %s", bus_error_message(&error, -r)); + goto finish; + } + + r = 0; + +finish: + unit_file_changes_free(changes, n_changes); + + return r; +} + +static int match_log_message(sd_bus_message *m, void *userdata, sd_bus_error *error) { + const char **our_path = userdata, *line; + unsigned priority; + int r; + + assert(m); + assert(our_path); + + r = sd_bus_message_read(m, "us", &priority, &line); + if (r < 0) { + bus_log_parse_error(r); + return 0; + } + + if (!streq_ptr(*our_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_message *m, void *userdata, sd_bus_error *error) { + const char **our_path = userdata, *path, *result; + uint32_t id; + int r; + + assert(m); + assert(our_path); + + r = sd_bus_message_read(m, "uos", &id, &path, &result); + if (r < 0) { + bus_log_parse_error(r); + return 0; + } + + if (!streq_ptr(*our_path, path)) + return 0; + + sd_event_exit(sd_bus_get_event(sd_bus_message_get_bus(m)), !streq_ptr(result, "done")); + return 0; +} + +static int transfer_signal_handler(sd_event_source *s, const struct signalfd_siginfo *si, void *userdata) { + assert(s); + assert(si); + + if (!arg_quiet) + log_info("Continuing download in the background. Use \"machinectl cancel-transfer %" PRIu32 "\" to abort transfer.", PTR_TO_UINT32(userdata)); + + sd_event_exit(sd_event_source_get_event(s), EINTR); + return 0; +} + +static int transfer_image_common(sd_bus *bus, sd_bus_message *m) { + _cleanup_(sd_bus_slot_unrefp) sd_bus_slot *slot_job_removed = NULL, *slot_log_message = NULL; + _cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL; + _cleanup_(sd_bus_message_unrefp) sd_bus_message *reply = NULL; + _cleanup_(sd_event_unrefp) sd_event* event = NULL; + const char *path = NULL; + uint32_t id; + int r; + + assert(bus); + assert(m); + + 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"); + + 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, &path); + 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, &path); + 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 to transfer image: %s", bus_error_message(&error, -r)); + return r; + } + + r = sd_bus_message_read(reply, "uo", &id, &path); + if (r < 0) + return bus_log_parse_error(r); + + assert_se(sigprocmask_many(SIG_BLOCK, NULL, SIGTERM, SIGINT, -1) >= 0); + + if (!arg_quiet) + log_info("Enqueued transfer job %u. Press C-c to continue download in background.", id); + + sd_event_add_signal(event, NULL, SIGINT, transfer_signal_handler, UINT32_TO_PTR(id)); + sd_event_add_signal(event, NULL, SIGTERM, transfer_signal_handler, UINT32_TO_PTR(id)); + + r = sd_event_loop(event); + if (r < 0) + return log_error_errno(r, "Failed to run event loop: %m"); + + return -r; +} + +static int import_tar(int argc, char *argv[], void *userdata) { + _cleanup_(sd_bus_message_unrefp) sd_bus_message *m = NULL; + _cleanup_free_ char *ll = NULL; + _cleanup_close_ int fd = -1; + const char *local = NULL, *path = NULL; + sd_bus *bus = userdata; + int r; + + assert(bus); + + if (argc >= 2) + path = argv[1]; + if (isempty(path) || streq(path, "-")) + path = NULL; + + if (argc >= 3) + local = argv[2]; + else if (path) + local = basename(path); + if (isempty(local) || streq(local, "-")) + local = NULL; + + if (!local) { + log_error("Need either path or local name."); + return -EINVAL; + } + + r = tar_strip_suffixes(local, &ll); + if (r < 0) + return log_oom(); + + local = ll; + + if (!machine_name_is_valid(local)) { + log_error("Local name %s is not a suitable machine name.", local); + return -EINVAL; + } + + if (path) { + fd = open(path, O_RDONLY|O_CLOEXEC|O_NOCTTY); + if (fd < 0) + return log_error_errno(errno, "Failed to open %s: %m", path); + } + + r = sd_bus_message_new_method_call( + bus, + &m, + "org.freedesktop.import1", + "/org/freedesktop/import1", + "org.freedesktop.import1.Manager", + "ImportTar"); + if (r < 0) + return bus_log_create_error(r); + + r = sd_bus_message_append( + m, + "hsbb", + fd >= 0 ? fd : STDIN_FILENO, + local, + arg_force, + arg_read_only); + if (r < 0) + return bus_log_create_error(r); + + return transfer_image_common(bus, m); +} + +static int import_raw(int argc, char *argv[], void *userdata) { + _cleanup_(sd_bus_message_unrefp) sd_bus_message *m = NULL; + _cleanup_free_ char *ll = NULL; + _cleanup_close_ int fd = -1; + const char *local = NULL, *path = NULL; + sd_bus *bus = userdata; + int r; + + assert(bus); + + if (argc >= 2) + path = argv[1]; + if (isempty(path) || streq(path, "-")) + path = NULL; + + if (argc >= 3) + local = argv[2]; + else if (path) + local = basename(path); + if (isempty(local) || streq(local, "-")) + local = NULL; + + if (!local) { + log_error("Need either path or local name."); + return -EINVAL; + } + + r = raw_strip_suffixes(local, &ll); + if (r < 0) + return log_oom(); + + local = ll; + + if (!machine_name_is_valid(local)) { + log_error("Local name %s is not a suitable machine name.", local); + return -EINVAL; + } + + if (path) { + fd = open(path, O_RDONLY|O_CLOEXEC|O_NOCTTY); + if (fd < 0) + return log_error_errno(errno, "Failed to open %s: %m", path); + } + + r = sd_bus_message_new_method_call( + bus, + &m, + "org.freedesktop.import1", + "/org/freedesktop/import1", + "org.freedesktop.import1.Manager", + "ImportRaw"); + if (r < 0) + return bus_log_create_error(r); + + r = sd_bus_message_append( + m, + "hsbb", + fd >= 0 ? fd : STDIN_FILENO, + local, + arg_force, + arg_read_only); + if (r < 0) + return bus_log_create_error(r); + + return transfer_image_common(bus, m); +} + +static void determine_compression_from_filename(const char *p) { + if (arg_format) + return; + + if (!p) + return; + + if (endswith(p, ".xz")) + arg_format = "xz"; + else if (endswith(p, ".gz")) + arg_format = "gzip"; + else if (endswith(p, ".bz2")) + arg_format = "bzip2"; +} + +static int export_tar(int argc, char *argv[], void *userdata) { + _cleanup_(sd_bus_message_unrefp) sd_bus_message *m = NULL; + _cleanup_close_ int fd = -1; + const char *local = NULL, *path = NULL; + sd_bus *bus = userdata; + int r; + + assert(bus); + + local = argv[1]; + if (!machine_name_is_valid(local)) { + log_error("Machine name %s is not valid.", local); + return -EINVAL; + } + + if (argc >= 3) + path = argv[2]; + if (isempty(path) || streq(path, "-")) + path = NULL; + + if (path) { + determine_compression_from_filename(path); + + fd = open(path, O_WRONLY|O_CREAT|O_TRUNC|O_CLOEXEC|O_NOCTTY, 0666); + if (fd < 0) + return log_error_errno(errno, "Failed to open %s: %m", path); + } + + r = sd_bus_message_new_method_call( + bus, + &m, + "org.freedesktop.import1", + "/org/freedesktop/import1", + "org.freedesktop.import1.Manager", + "ExportTar"); + if (r < 0) + return bus_log_create_error(r); + + r = sd_bus_message_append( + m, + "shs", + local, + fd >= 0 ? fd : STDOUT_FILENO, + arg_format); + if (r < 0) + return bus_log_create_error(r); + + return transfer_image_common(bus, m); +} + +static int export_raw(int argc, char *argv[], void *userdata) { + _cleanup_(sd_bus_message_unrefp) sd_bus_message *m = NULL; + _cleanup_close_ int fd = -1; + const char *local = NULL, *path = NULL; + sd_bus *bus = userdata; + int r; + + assert(bus); + + local = argv[1]; + if (!machine_name_is_valid(local)) { + log_error("Machine name %s is not valid.", local); + return -EINVAL; + } + + if (argc >= 3) + path = argv[2]; + if (isempty(path) || streq(path, "-")) + path = NULL; + + if (path) { + determine_compression_from_filename(path); + + fd = open(path, O_WRONLY|O_CREAT|O_TRUNC|O_CLOEXEC|O_NOCTTY, 0666); + if (fd < 0) + return log_error_errno(errno, "Failed to open %s: %m", path); + } + + r = sd_bus_message_new_method_call( + bus, + &m, + "org.freedesktop.import1", + "/org/freedesktop/import1", + "org.freedesktop.import1.Manager", + "ExportRaw"); + if (r < 0) + return bus_log_create_error(r); + + r = sd_bus_message_append( + m, + "shs", + local, + fd >= 0 ? fd : STDOUT_FILENO, + arg_format); + if (r < 0) + return bus_log_create_error(r); + + return transfer_image_common(bus, m); +} + +static int pull_tar(int argc, char *argv[], void *userdata) { + _cleanup_(sd_bus_message_unrefp) 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_oom(); + + 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, + import_verify_to_string(arg_verify), + arg_force); + if (r < 0) + return bus_log_create_error(r); + + return transfer_image_common(bus, m); +} + +static int pull_raw(int argc, char *argv[], void *userdata) { + _cleanup_(sd_bus_message_unrefp) 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_oom(); + + 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, + import_verify_to_string(arg_verify), + arg_force); + if (r < 0) + return bus_log_create_error(r); + + return transfer_image_common(bus, m); +} + +typedef struct TransferInfo { + uint32_t id; + const char *type; + const char *remote; + const char *local; + double progress; +} 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_(sd_bus_message_unrefp) sd_bus_message *reply = NULL; + _cleanup_(sd_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; + double progress; + int r; + + pager_open(arg_no_pager, false); + + 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', "(usssdo)"); + if (r < 0) + return bus_log_parse_error(r); + + while ((r = sd_bus_message_read(reply, "(usssdo)", &id, &type, &remote, &local, &progress, &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; + transfers[n_transfers].progress = progress; + + 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 && n_transfers > 0) + printf("%-*s %-*s %-*s %-*s %-*s\n", + (int) MAX(2U, DECIMAL_STR_WIDTH(max_id)), "ID", + (int) 7, "PERCENT", + (int) max_type, "TYPE", + (int) max_local, "LOCAL", + (int) max_remote, "REMOTE"); + + for (j = 0; j < n_transfers; j++) + printf("%*" PRIu32 " %*u%% %-*s %-*s %-*s\n", + (int) MAX(2U, DECIMAL_STR_WIDTH(max_id)), transfers[j].id, + (int) 6, (unsigned) (transfers[j].progress * 100), + (int) max_type, transfers[j].type, + (int) max_local, transfers[j].local, + (int) max_remote, transfers[j].remote); + + if (arg_legend && n_transfers > 0) + printf("\n%zu transfers listed.\n", n_transfers); + else + printf("No transfers.\n"); + + return 0; +} + +static int cancel_transfer(int argc, char *argv[], void *userdata) { + _cleanup_(sd_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 set_limit(int argc, char *argv[], void *userdata) { + _cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL; + sd_bus *bus = userdata; + uint64_t limit; + int r; + + if (STR_IN_SET(argv[argc-1], "-", "none", "infinity")) + limit = (uint64_t) -1; + else { + r = parse_size(argv[argc-1], 1024, &limit); + if (r < 0) + return log_error("Failed to parse size: %s", argv[argc-1]); + } + + if (argc > 2) + /* With two arguments changes the quota limit of the + * specified image */ + r = sd_bus_call_method( + bus, + "org.freedesktop.machine1", + "/org/freedesktop/machine1", + "org.freedesktop.machine1.Manager", + "SetImageLimit", + &error, + NULL, + "st", argv[1], limit); + else + /* With one argument changes the pool quota limit */ + r = sd_bus_call_method( + bus, + "org.freedesktop.machine1", + "/org/freedesktop/machine1", + "org.freedesktop.machine1.Manager", + "SetPoolLimit", + &error, + NULL, + "t", limit); + + if (r < 0) { + log_error("Could not set limit: %s", bus_error_message(&error, -r)); + return r; + } + + return 0; +} + +static int clean_images(int argc, char *argv[], void *userdata) { + _cleanup_(sd_bus_message_unrefp) sd_bus_message *m = NULL, *reply = NULL; + _cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL; + uint64_t usage, total = 0; + char fb[FORMAT_BYTES_MAX]; + sd_bus *bus = userdata; + const char *name; + unsigned c = 0; + int r; + + r = sd_bus_message_new_method_call( + bus, + &m, + "org.freedesktop.machine1", + "/org/freedesktop/machine1", + "org.freedesktop.machine1.Manager", + "CleanPool"); + if (r < 0) + return bus_log_create_error(r); + + r = sd_bus_message_append(m, "s", arg_all ? "all" : "hidden"); + if (r < 0) + return bus_log_create_error(r); + + /* This is a slow operation, hence permit a longer time for completion. */ + r = sd_bus_call(bus, m, USEC_INFINITY, &error, &reply); + if (r < 0) + return log_error_errno(r, "Could not clean pool: %s", bus_error_message(&error, r)); + + r = sd_bus_message_enter_container(reply, 'a', "(st)"); + if (r < 0) + return bus_log_parse_error(r); + + while ((r = sd_bus_message_read(reply, "(st)", &name, &usage)) > 0) { + log_info("Removed image '%s'. Freed exclusive disk space: %s", + name, format_bytes(fb, sizeof(fb), usage)); + + total += usage; + c++; + } + + r = sd_bus_message_exit_container(reply); + if (r < 0) + return bus_log_parse_error(r); + + log_info("Removed %u images in total. Total freed exclusive disk space %s.", + c, format_bytes(fb, sizeof(fb), total)); + + return 0; +} + +static int help(int argc, char *argv[], void *userdata) { + pager_open(arg_no_pager, false); + + 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" + " --value When showing properties, only print the value\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" + " --uid=USER Specify user ID to invoke shell as\n" + " -E --setenv=VAR=VALUE Add an environment variable for shell\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" + " --max-addresses=INTEGER Number of internet addresses to show at most\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,\n" + " checksum, signature)\n" + " --force Download image even if already exists\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 in a container or on the\n" + " local host\n" + " shell [[USER@]NAME [COMMAND...]]\n" + " Invoke a shell (or other command) in a container\n" + " or on the local host\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 container and VM 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" + " set-limit [NAME] BYTES Set image or pool size limit (disk quota)\n" + " clean Remove hidden (or all) images\n\n" + "Image Transfer Commands:\n" + " pull-tar URL [NAME] Download a TAR container image\n" + " pull-raw URL [NAME] Download a RAW container or VM image\n" + " import-tar FILE [NAME] Import a local TAR container image\n" + " import-raw FILE [NAME] Import a local RAW container or VM image\n" + " export-tar NAME [FILE] Export a TAR container image locally\n" + " export-raw NAME [FILE] Export a RAW container or VM image locally\n" + " list-transfers Show list of downloads in progress\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_VALUE, + ARG_KILL_WHO, + ARG_READ_ONLY, + ARG_MKDIR, + ARG_NO_ASK_PASSWORD, + ARG_VERIFY, + ARG_FORCE, + ARG_FORMAT, + ARG_UID, + ARG_NUMBER_IPS, + }; + + 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' }, + { "value", no_argument, NULL, ARG_VALUE }, + { "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 }, + { "format", required_argument, NULL, ARG_FORMAT }, + { "uid", required_argument, NULL, ARG_UID }, + { "setenv", required_argument, NULL, 'E' }, + { "max-addresses", required_argument, NULL, ARG_NUMBER_IPS }, + {} + }; + + bool reorder = false; + int c, r, shell = -1; + + assert(argc >= 0); + assert(argv); + + for (;;) { + static const char option_string[] = "-hp:als:H:M:qn:o:"; + + c = getopt_long(argc, argv, option_string + reorder, options, NULL); + if (c < 0) + break; + + switch (c) { + + case 1: /* getopt_long() returns 1 if "-" was the first character of the option string, and a + * non-option argument was discovered. */ + + assert(!reorder); + + /* We generally are fine with the fact that getopt_long() reorders the command line, and looks + * for switches after the main verb. However, for "shell" we really don't want that, since we + * want that switches specified after the machine name are passed to the program to execute, + * and not processed by us. To make this possible, we'll first invoke getopt_long() with + * reordering disabled (i.e. with the "-" prefix in the option string), looking for the first + * non-option parameter. If it's the verb "shell" we remember its position and continue + * processing options. In this case, as soon as we hit the next non-option argument we found + * the machine name, and stop further processing. If the first non-option argument is any other + * verb than "shell" we switch to normal reordering mode and continue processing arguments + * normally. */ + + if (shell >= 0) { + /* If we already found the "shell" verb on the command line, and now found the next + * non-option argument, then this is the machine name and we should stop processing + * further arguments. */ + optind --; /* don't process this argument, go one step back */ + goto done; + } + if (streq(optarg, "shell")) + /* Remember the position of the "shell" verb, and continue processing normally. */ + shell = optind - 1; + else { + int saved_optind; + + /* OK, this is some other verb. In this case, turn on reordering again, and continue + * processing normally. */ + reorder = true; + + /* We changed the option string. getopt_long() only looks at it again if we invoke it + * at least once with a reset option index. Hence, let's reset the option index here, + * then invoke getopt_long() again (ignoring what it has to say, after all we most + * likely already processed it), and the bump the option index so that we read the + * intended argument again. */ + saved_optind = optind; + optind = 0; + (void) getopt_long(argc, argv, option_string + reorder, options, NULL); + optind = saved_optind - 1; /* go one step back, process this argument again */ + } + + break; + + case 'h': + return help(0, NULL, NULL); + + case ARG_VERSION: + return version(); + + 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 ARG_VALUE: + arg_value = 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 = import_verify_from_string(optarg); + if (arg_verify < 0) { + log_error("Failed to parse --verify= setting: %s", optarg); + return -EINVAL; + } + break; + + case ARG_FORCE: + arg_force = true; + break; + + case ARG_FORMAT: + if (!STR_IN_SET(optarg, "uncompressed", "xz", "gzip", "bzip2")) { + log_error("Unknown format: %s", optarg); + return -EINVAL; + } + + arg_format = optarg; + break; + + case ARG_UID: + arg_uid = optarg; + break; + + case 'E': + if (!env_assignment_is_valid(optarg)) { + log_error("Environment assignment invalid: %s", optarg); + return -EINVAL; + } + + r = strv_extend(&arg_setenv, optarg); + if (r < 0) + return log_oom(); + break; + + case ARG_NUMBER_IPS: + if (streq(optarg, "all")) + arg_addrs = ALL_IP_ADDRESSES; + else if (safe_atoi(optarg, &arg_addrs) < 0) { + log_error("Invalid number of IPs"); + return -EINVAL; + } else if (arg_addrs < 0) { + log_error("Number of IPs cannot be negative"); + return -EINVAL; + } + break; + + case '?': + return -EINVAL; + + default: + assert_not_reached("Unhandled option"); + } + } + +done: + if (shell >= 0) { + char *t; + int i; + + /* We found the "shell" verb while processing the argument list. Since we turned off reordering of the + * argument list initially let's readjust it now, and move the "shell" verb to the back. */ + + optind -= 1; /* place the option index where the "shell" verb will be placed */ + + t = argv[shell]; + for (i = shell; i < optind; i++) + argv[i] = argv[i+1]; + argv[optind] = t; + } + + 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", VERB_ANY, 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 }, + { "stop", 2, VERB_ANY, 0, poweroff_machine }, /* Convenience alias */ + { "kill", 2, VERB_ANY, 0, kill_machine }, + { "login", VERB_ANY, 2, 0, login_machine }, + { "shell", VERB_ANY, VERB_ANY, 0, shell_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 }, + { "import-tar", 2, 3, 0, import_tar }, + { "import-raw", 2, 3, 0, import_raw }, + { "export-tar", 2, 3, 0, export_tar }, + { "export-raw", 2, 3, 0, export_raw }, + { "pull-tar", 2, 3, 0, pull_tar }, + { "pull-raw", 2, 3, 0, pull_raw }, + { "list-transfers", VERB_ANY, 1, 0, list_transfers }, + { "cancel-transfer", 2, VERB_ANY, 0, cancel_transfer }, + { "set-limit", 2, 3, 0, set_limit }, + { "clean", VERB_ANY, 1, 0, clean_images }, + {} + }; + + return dispatch_verb(argc, argv, verbs, bus); +} + +int main(int argc, char*argv[]) { + 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_connect_transport(arg_transport, arg_host, false, &bus); + if (r < 0) { + log_error_errno(r, "Failed to create bus connection: %m"); + goto finish; + } + + sd_bus_set_allow_interactive_authorization(bus, arg_ask_password); + + r = machinectl_main(argc, argv, bus); + +finish: + sd_bus_flush_close_unref(bus); + pager_close(); + polkit_agent_close(); + + strv_free(arg_property); + strv_free(arg_setenv); + + return r < 0 ? EXIT_FAILURE : EXIT_SUCCESS; +} |