/* SPDX-License-Identifier: LGPL-2.1-or-later */ #include #include #include #include #include #include #include #include #include #include #include "sd-bus.h" #include "alloc-util.h" #include "build.h" #include "bus-common-errors.h" #include "bus-error.h" #include "bus-locator.h" #include "bus-map-properties.h" #include "bus-print-properties.h" #include "bus-unit-procs.h" #include "bus-unit-util.h" #include "bus-wait-for-jobs.h" #include "cgroup-show.h" #include "cgroup-util.h" #include "constants.h" #include "copy.h" #include "edit-util.h" #include "env-util.h" #include "fd-util.h" #include "format-table.h" #include "hostname-util.h" #include "import-util.h" #include "locale-util.h" #include "log.h" #include "logs-show.h" #include "machine-dbus.h" #include "macro.h" #include "main-func.h" #include "mkdir.h" #include "nulstr-util.h" #include "pager.h" #include "parse-argument.h" #include "parse-util.h" #include "path-util.h" #include "pretty-print.h" #include "process-util.h" #include "ptyfwd.h" #include "rlimit-util.h" #include "sigbus.h" #include "signal-util.h" #include "sort-util.h" #include "spawn-ask-password-agent.h" #include "spawn-polkit-agent.h" #include "stdio-util.h" #include "string-table.h" #include "strv.h" #include "terminal-util.h" #include "unit-name.h" #include "verbs.h" #include "web-util.h" static char **arg_property = NULL; static bool arg_all = false; static BusPrintPropertyFlags arg_print_flags = 0; static bool arg_full = false; static PagerFlags arg_pager_flags = 0; static bool arg_legend = true; static const char *arg_kill_whom = NULL; static int arg_signal = SIGTERM; static BusTransport arg_transport = BUS_TRANSPORT_LOCAL; static const 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_now = false; 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 unsigned arg_max_addresses = 1; STATIC_DESTRUCTOR_REGISTER(arg_property, strv_freep); STATIC_DESTRUCTOR_REGISTER(arg_setenv, strv_freep); static OutputFlags get_output_flags(void) { return FLAGS_SET(arg_print_flags, BUS_PRINT_PROPERTY_SHOW_EMPTY) * OUTPUT_SHOW_ALL | (arg_full || !on_tty() || pager_have()) * OUTPUT_FULL_WIDTH | colors_enabled() * OUTPUT_COLOR | !arg_quiet * OUTPUT_WARN_CUTOFF; } static int call_get_os_release(sd_bus *bus, const char *method, const char *name, const char *query, ...) { _cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL; _cleanup_(sd_bus_message_unrefp) sd_bus_message *reply = NULL; const char *k, *v, **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 = bus_call_method(bus, bus_machine_mgr, method, &error, &reply, "s", name); if (r < 0) return log_debug_errno(r, "Failed to call '%s()': %s", method, bus_error_message(&error, 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 -ENOMEM; } *out = val; } } va_end(ap); return 0; } static int call_get_addresses( sd_bus *bus, const char *name, int ifi, const char *prefix, const char *prefix2, char **ret) { _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 *addresses = NULL; unsigned n = 0; int r; assert(bus); assert(name); assert(prefix); assert(prefix2); r = bus_call_method(bus, bus_machine_mgr, "GetMachineAddresses", NULL, &reply, "s", name); if (r < 0) return log_debug_errno(r, "Could not get addresses: %s", bus_error_message(&error, 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[1 + DECIMAL_STR_MAX(int)] = ""; 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 (family == AF_INET6 && ifi > 0) xsprintf(buf_ifi, "%%%i", ifi); if (!strextend(&addresses, prefix, IN_ADDR_TO_STRING(family, a), buf_ifi)) return log_oom(); r = sd_bus_message_exit_container(reply); if (r < 0) return bus_log_parse_error(r); prefix = prefix2; n++; } 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); *ret = TAKE_PTR(addresses); return (int) n; } static int show_table(Table *table, const char *word) { int r; assert(table); assert(word); if (table_get_rows(table) > 1 || OUTPUT_MODE_IS_JSON(arg_output)) { r = table_set_sort(table, (size_t) 0); if (r < 0) return table_log_sort_error(r); table_set_header(table, arg_legend); if (OUTPUT_MODE_IS_JSON(arg_output)) r = table_print_json(table, NULL, output_mode_to_json_format_flags(arg_output) | JSON_FORMAT_COLOR_AUTO); else r = table_print(table, NULL); if (r < 0) return table_log_print_error(r); } if (arg_legend) { if (table_get_rows(table) > 1) printf("\n%zu %s listed.\n", table_get_rows(table) - 1, word); else printf("No %s.\n", word); } return 0; } static int list_machines(int argc, char *argv[], void *userdata) { _cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL; _cleanup_(sd_bus_message_unrefp) sd_bus_message *reply = NULL; _cleanup_(table_unrefp) Table *table = NULL; sd_bus *bus = ASSERT_PTR(userdata); int r; pager_open(arg_pager_flags); r = bus_call_method(bus, bus_machine_mgr, "ListMachines", &error, &reply, NULL); if (r < 0) return log_error_errno(r, "Could not get machines: %s", bus_error_message(&error, r)); table = table_new("machine", "class", "service", "os", "version", arg_max_addresses > 0 ? "addresses" : NULL); if (!table) return log_oom(); table_set_ersatz_string(table, TABLE_ERSATZ_DASH); if (!arg_full && arg_max_addresses > 0 && arg_max_addresses < UINT_MAX) table_set_cell_height_max(table, arg_max_addresses); if (arg_full) table_set_width(table, 0); r = sd_bus_message_enter_container(reply, 'a', "(ssso)"); if (r < 0) return bus_log_parse_error(r); for (;;) { _cleanup_free_ char *os = NULL, *version_id = NULL, *addresses = NULL; const char *name, *class, *service; r = sd_bus_message_read(reply, "(ssso)", &name, &class, &service, NULL); if (r < 0) return bus_log_parse_error(r); if (r == 0) break; if (name[0] == '.' && !arg_all) continue; (void) call_get_os_release( bus, "GetMachineOSRelease", name, "ID\0" "VERSION_ID\0", &os, &version_id); r = table_add_many(table, TABLE_STRING, empty_to_null(name), TABLE_STRING, empty_to_null(class), TABLE_STRING, empty_to_null(service), TABLE_STRING, empty_to_null(os), TABLE_STRING, empty_to_null(version_id)); if (r < 0) return table_log_add_error(r); if (arg_max_addresses > 0) { (void) call_get_addresses(bus, name, 0, "", "\n", &addresses); r = table_add_many(table, TABLE_STRING, empty_to_null(addresses)); if (r < 0) return table_log_add_error(r); } } r = sd_bus_message_exit_container(reply); if (r < 0) return bus_log_parse_error(r); return show_table(table, "machines"); } static int list_images(int argc, char *argv[], void *userdata) { _cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL; _cleanup_(sd_bus_message_unrefp) sd_bus_message *reply = NULL; _cleanup_(table_unrefp) Table *table = NULL; sd_bus *bus = ASSERT_PTR(userdata); int r; pager_open(arg_pager_flags); r = bus_call_method(bus, bus_machine_mgr, "ListImages", &error, &reply, NULL); if (r < 0) return log_error_errno(r, "Could not get images: %s", bus_error_message(&error, r)); table = table_new("name", "type", "ro", "usage", "created", "modified"); if (!table) return log_oom(); if (arg_full) table_set_width(table, 0); (void) table_set_align_percent(table, TABLE_HEADER_CELL(3), 100); r = sd_bus_message_enter_container(reply, SD_BUS_TYPE_ARRAY, "(ssbttto)"); if (r < 0) return bus_log_parse_error(r); for (;;) { uint64_t crtime, mtime, size; const char *name, *type; int ro_int; r = sd_bus_message_read(reply, "(ssbttto)", &name, &type, &ro_int, &crtime, &mtime, &size, NULL); if (r < 0) return bus_log_parse_error(r); if (r == 0) break; if (name[0] == '.' && !arg_all) continue; r = table_add_many(table, TABLE_STRING, name, TABLE_STRING, type, TABLE_BOOLEAN, ro_int, TABLE_SET_COLOR, ro_int ? ansi_highlight_red() : NULL, TABLE_SIZE, size, TABLE_TIMESTAMP, crtime, TABLE_TIMESTAMP, mtime); if (r < 0) return table_log_add_error(r); } r = sd_bus_message_exit_container(reply); if (r < 0) return bus_log_parse_error(r); return show_table(table, "images"); } static int show_unit_cgroup(sd_bus *bus, const char *unit, pid_t leader) { _cleanup_free_ char *cgroup = NULL; _cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL; int r; unsigned c; assert(bus); assert(unit); r = show_cgroup_get_unit_path_and_warn(bus, unit, &cgroup); if (r < 0) return 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_os_release(sd_bus *bus, const char *method, const char *name, const char *prefix) { _cleanup_free_ char *pretty = NULL; int r; assert(bus); assert(name); assert(prefix); r = call_get_os_release(bus, method, name, "PRETTY_NAME\0", &pretty, NULL); if (r < 0) return r; if (pretty) printf("%s%s\n", prefix, pretty); return 0; } static int print_uid_shift(sd_bus *bus, const char *name) { _cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL; _cleanup_(sd_bus_message_unrefp) sd_bus_message *reply = NULL; uint32_t shift; int r; assert(bus); assert(name); r = bus_call_method(bus, bus_machine_mgr, "GetMachineUIDShift", &error, &reply, "s", name); if (r < 0) return log_debug_errno(r, "Failed to query UID/GID shift: %s", bus_error_message(&error, r)); r = sd_bus_message_read(reply, "u", &shift); if (r < 0) return r; if (shift == 0) /* Don't show trivial mappings */ return 0; printf(" UID Shift: %" PRIu32 "\n", shift); return 0; } typedef struct MachineStatusInfo { const char *name; sd_id128_t id; const char *class; const char *service; const char *unit; const char *root_directory; pid_t leader; struct dual_timestamp timestamp; int *netif; size_t n_netif; } MachineStatusInfo; static void machine_status_info_clear(MachineStatusInfo *info) { if (info) { free(info->netif); zero(*info); } } static void print_machine_status_info(sd_bus *bus, MachineStatusInfo *i) { _cleanup_free_ char *addresses = NULL, *s1 = NULL, *s2 = NULL; 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 = strdup(strempty(FORMAT_TIMESTAMP_RELATIVE(i->timestamp.realtime))); s2 = strdup(strempty(FORMAT_TIMESTAMP(i->timestamp.realtime))); if (!isempty(s1)) printf("\t Since: %s; %s\n", strna(s2), s1); else if (!isempty(s2)) printf("\t Since: %s\n", s2); if (i->leader > 0) { _cleanup_free_ char *t = NULL; printf("\t Leader: %u", (unsigned) i->leader); (void) 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) { fputs("\t Iface:", stdout); for (size_t c = 0; c < i->n_netif; c++) { char name[IF_NAMESIZE]; if (format_ifname(i->netif[c], name) >= 0) { fputc(' ', stdout); fputs(name, stdout); if (ifi < 0) ifi = i->netif[c]; else ifi = 0; } else printf(" %i", i->netif[c]); } fputc('\n', stdout); } if (call_get_addresses(bus, i->name, ifi, "\t Address: ", "\n\t ", &addresses) > 0) { fputs(addresses, stdout); fputc('\n', stdout); } print_os_release(bus, "GetMachineOSRelease", i->name, "\t OS: "); print_uid_shift(bus, i->name); 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, NULL, 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_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL; _cleanup_(sd_bus_message_unrefp) sd_bus_message *m = NULL; _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, 0, &error, &m, &info); if (r < 0) return log_error_errno(r, "Could not get properties: %s", bus_error_message(&error, r)); 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, NULL, arg_property, arg_print_flags, NULL); 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 = ASSERT_PTR(userdata); int r = 0; properties = !strstr(argv[0], "status"); pager_open(arg_pager_flags); 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 (int i = 1; i < argc; i++) { const char *path = NULL; r = bus_call_method(bus, bus_machine_mgr, "GetMachine", &error, &reply, "s", argv[i]); if (r < 0) return log_error_errno(r, "Could not get path to machine: %s", bus_error_message(&error, 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; } static int print_image_hostname(sd_bus *bus, const char *name) { _cleanup_(sd_bus_message_unrefp) sd_bus_message *reply = NULL; const char *hn; int r; r = bus_call_method(bus, bus_machine_mgr, "GetImageHostname", NULL, &reply, "s", name); if (r < 0) return r; r = sd_bus_message_read(reply, "s", &hn); if (r < 0) return r; if (!isempty(hn)) printf("\tHostname: %s\n", hn); return 0; } static int print_image_machine_id(sd_bus *bus, const char *name) { _cleanup_(sd_bus_message_unrefp) sd_bus_message *reply = NULL; sd_id128_t id = SD_ID128_NULL; const void *p; size_t size; int r; r = bus_call_method(bus, bus_machine_mgr, "GetImageMachineID", NULL, &reply, "s", name); if (r < 0) return r; r = sd_bus_message_read_array(reply, 'y', &p, &size); if (r < 0) return r; if (size == sizeof(sd_id128_t)) memcpy(&id, p, size); if (!sd_id128_is_null(id)) printf(" Machine ID: " SD_ID128_FORMAT_STR "\n", SD_ID128_FORMAT_VAL(id)); return 0; } static int print_image_machine_info(sd_bus *bus, const char *name) { _cleanup_(sd_bus_message_unrefp) sd_bus_message *reply = NULL; int r; r = bus_call_method(bus, bus_machine_mgr, "GetImageMachineInfo", NULL, &reply, "s", name); if (r < 0) return r; r = sd_bus_message_enter_container(reply, 'a', "{ss}"); if (r < 0) return r; for (;;) { const char *p, *q; r = sd_bus_message_read(reply, "{ss}", &p, &q); if (r < 0) return r; if (r == 0) break; if (streq(p, "DEPLOYMENT")) printf(" Deployment: %s\n", q); } r = sd_bus_message_exit_container(reply); if (r < 0) return r; return 0; } typedef struct ImageStatusInfo { const char *name; const char *path; const char *type; bool 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) { 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); (void) print_image_hostname(bus, i->name); (void) print_image_machine_id(bus, i->name); (void) print_image_machine_info(bus, i->name); print_os_release(bus, "GetImageOSRelease", i->name, "\t OS: "); printf("\t RO: %s%s%s\n", i->read_only ? ansi_highlight_red() : "", i->read_only ? "read-only" : "writable", i->read_only ? ansi_normal() : ""); if (timestamp_is_set(i->crtime)) printf("\t Created: %s; %s\n", FORMAT_TIMESTAMP(i->crtime), FORMAT_TIMESTAMP_RELATIVE(i->crtime)); if (timestamp_is_set(i->mtime)) printf("\tModified: %s; %s\n", FORMAT_TIMESTAMP(i->mtime), FORMAT_TIMESTAMP_RELATIVE(i->mtime)); if (i->usage != UINT64_MAX) { if (i->usage_exclusive != i->usage && i->usage_exclusive != UINT64_MAX) printf("\t Usage: %s (exclusive: %s)\n", FORMAT_BYTES(i->usage), FORMAT_BYTES(i->usage_exclusive)); else printf("\t Usage: %s\n", FORMAT_BYTES(i->usage)); } if (i->limit != UINT64_MAX) { if (i->limit_exclusive != i->limit && i->limit_exclusive != UINT64_MAX) printf("\t Limit: %s (exclusive: %s)\n", FORMAT_BYTES(i->limit), FORMAT_BYTES(i->limit_exclusive)); else printf("\t Limit: %s\n", FORMAT_BYTES(i->limit)); } } 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_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL; _cleanup_(sd_bus_message_unrefp) sd_bus_message *m = NULL; ImageStatusInfo info = {}; int r; assert(bus); assert(path); assert(new_line); r = bus_map_all_properties(bus, "org.freedesktop.machine1", path, map, BUS_MAP_BOOLEAN_AS_BOOL, &error, &m, &info); if (r < 0) return log_error_errno(r, "Could not get properties: %s", bus_error_message(&error, r)); if (*new_line) printf("\n"); *new_line = true; print_image_status_info(bus, &info); return r; } typedef struct PoolStatusInfo { const char *path; uint64_t usage; uint64_t limit; } PoolStatusInfo; static void print_pool_status_info(sd_bus *bus, PoolStatusInfo *i) { if (i->path) printf("\t Path: %s\n", i->path); if (i->usage != UINT64_MAX) printf("\t Usage: %s\n", FORMAT_BYTES(i->usage)); if (i->limit != UINT64_MAX) printf("\t Limit: %s\n", FORMAT_BYTES(i->limit)); } 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) }, {} }; PoolStatusInfo info = { .usage = UINT64_MAX, .limit = UINT64_MAX, }; _cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL; _cleanup_(sd_bus_message_unrefp) sd_bus_message *m = NULL; int r; assert(bus); r = bus_map_all_properties(bus, "org.freedesktop.machine1", "/org/freedesktop/machine1", map, 0, &error, &m, &info); if (r < 0) return log_error_errno(r, "Could not get properties: %s", bus_error_message(&error, r)); 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, NULL, arg_property, arg_print_flags, NULL); 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 = ASSERT_PTR(userdata); int r = 0; properties = !strstr(argv[0], "status"); pager_open(arg_pager_flags); 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 (int i = 1; i < argc; i++) { const char *path = NULL; r = bus_call_method(bus, bus_machine_mgr, "GetImage", &error, &reply, "s", argv[i]); if (r < 0) return log_error_errno(r, "Could not get path to image: %s", bus_error_message(&error, 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 = ASSERT_PTR(userdata); int r; polkit_agent_open_if_enabled(arg_transport, arg_ask_password); if (!arg_kill_whom) arg_kill_whom = "all"; for (int i = 1; i < argc; i++) { r = bus_call_method( bus, bus_machine_mgr, "KillMachine", &error, NULL, "ssi", argv[i], arg_kill_whom, arg_signal); if (r < 0) return log_error_errno(r, "Could not kill machine: %s", bus_error_message(&error, r)); } return 0; } static int reboot_machine(int argc, char *argv[], void *userdata) { arg_kill_whom = "leader"; arg_signal = SIGINT; /* sysvinit + systemd */ return kill_machine(argc, argv, userdata); } static int poweroff_machine(int argc, char *argv[], void *userdata) { arg_kill_whom = "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 = ASSERT_PTR(userdata); int r; polkit_agent_open_if_enabled(arg_transport, arg_ask_password); for (int i = 1; i < argc; i++) { r = bus_call_method(bus, bus_machine_mgr, "TerminateMachine", &error, NULL, "s", argv[i]); if (r < 0) return log_error_errno(r, "Could not terminate machine: %s", bus_error_message(&error, r)); } return 0; } static const char *select_copy_method(bool copy_from, bool force) { if (force) return copy_from ? "CopyFromMachineWithFlags" : "CopyToMachineWithFlags"; else return copy_from ? "CopyFromMachine" : "CopyToMachine"; } 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 = ASSERT_PTR(userdata); bool copy_from; int r; polkit_agent_open_if_enabled(arg_transport, arg_ask_password); 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 = bus_message_new_method_call( bus, &m, bus_machine_mgr, select_copy_method(copy_from, arg_force)); 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); if (arg_force) { r = sd_bus_message_append(m, "t", MACHINE_COPY_REPLACE); 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 = ASSERT_PTR(userdata); int r; polkit_agent_open_if_enabled(arg_transport, arg_ask_password); r = bus_call_method( bus, bus_machine_mgr, "BindMountMachine", &error, NULL, "sssbb", argv[1], argv[2], argv[3], arg_read_only, arg_mkdir); if (r < 0) return log_error_errno(r, "Failed to bind mount: %s", bus_error_message(&error, 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 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); } (void) sd_event_add_signal(event, NULL, SIGINT, NULL, NULL); (void) 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); } return 0; } 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 = ASSERT_PTR(userdata); const char *match, *machine; if (!strv_isempty(arg_setenv) || arg_uid) return log_error_errno(SYNTHETIC_ERRNO(EINVAL), "--setenv= and --uid= are not supported for 'login'. Use 'shell' instead."); if (!IN_SET(arg_transport, BUS_TRANSPORT_LOCAL, BUS_TRANSPORT_MACHINE)) return log_error_errno(SYNTHETIC_ERRNO(EOPNOTSUPP), "Login only supported on local machines."); polkit_agent_open_if_enabled(arg_transport, arg_ask_password); 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_async(bus, &slot, match, on_machine_removed, NULL, &forward); if (r < 0) return log_error_errno(r, "Failed to request machine removal match: %m"); r = bus_call_method(bus, bus_machine_mgr, "OpenMachineLogin", &error, &reply, "s", machine); if (r < 0) return log_error_errno(r, "Failed to get login PTY: %s", bus_error_message(&error, r)); r = sd_bus_message_read(reply, "hs", &master, NULL); 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 = ASSERT_PTR(userdata); const char *match, *machine, *path; _cleanup_free_ char *uid = NULL; if (!IN_SET(arg_transport, BUS_TRANSPORT_LOCAL, BUS_TRANSPORT_MACHINE)) return log_error_errno(SYNTHETIC_ERRNO(EOPNOTSUPP), "Shell only supported on local machines."); /* 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(arg_transport, arg_ask_password); 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_async(bus, &slot, match, on_machine_removed, NULL, &forward); if (r < 0) return log_error_errno(r, "Failed to request machine removal match: %m"); r = bus_message_new_method_call(bus, &m, bus_machine_mgr, "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) return log_error_errno(r, "Failed to get shell PTY: %s", bus_error_message(&error, r)); r = sd_bus_message_read(reply, "hs", &master, NULL); if (r < 0) return bus_log_parse_error(r); return process_forward(event, &forward, master, 0, machine); } static int normalize_nspawn_filename(const char *name, char **ret_file) { _cleanup_free_ char *file = NULL; assert(name); assert(ret_file); if (!endswith(name, ".nspawn")) file = strjoin(name, ".nspawn"); else file = strdup(name); if (!file) return log_oom(); if (!filename_is_valid(file)) return log_error_errno(SYNTHETIC_ERRNO(EINVAL), "Invalid settings file name '%s'.", file); *ret_file = TAKE_PTR(file); return 0; } static int get_settings_path(const char *name, char **ret_path) { assert(name); assert(ret_path); FOREACH_STRING(i, "/etc/systemd/nspawn", "/run/systemd/nspawn", "/var/lib/machines") { _cleanup_free_ char *path = NULL; path = path_join(i, name); if (!path) return -ENOMEM; if (access(path, F_OK) >= 0) { *ret_path = TAKE_PTR(path); return 0; } } return -ENOENT; } static int edit_settings(int argc, char *argv[], void *userdata) { _cleanup_(edit_file_context_done) EditFileContext context = {}; int r; if (!on_tty()) return log_error_errno(SYNTHETIC_ERRNO(EINVAL), "Cannot edit machine settings if not on a tty."); if (arg_transport != BUS_TRANSPORT_LOCAL) return log_error_errno(SYNTHETIC_ERRNO(EOPNOTSUPP), "Edit is only supported on the host machine."); r = mac_selinux_init(); if (r < 0) return r; STRV_FOREACH(name, strv_skip(argv, 1)) { _cleanup_free_ char *file = NULL, *path = NULL; if (path_is_absolute(*name)) { if (!path_is_safe(*name)) return log_error_errno(SYNTHETIC_ERRNO(EINVAL), "Invalid settings file path '%s'.", *name); r = edit_files_add(&context, *name, NULL, NULL); if (r < 0) return r; continue; } r = normalize_nspawn_filename(*name, &file); if (r < 0) return r; r = get_settings_path(file, &path); if (r == -ENOENT) { log_debug("No existing settings file for machine '%s' found, creating a new file.", *name); path = path_join("/etc/systemd/nspawn", file); if (!path) return log_oom(); r = edit_files_add(&context, path, NULL, NULL); if (r < 0) return r; continue; } if (r < 0) return log_error_errno(r, "Failed to get the path of the settings file: %m"); if (path_startswith(path, "/var/lib/machines")) { _cleanup_free_ char *new_path = NULL; new_path = path_join("/etc/systemd/nspawn", file); if (!new_path) return log_oom(); r = edit_files_add(&context, new_path, path, NULL); } else r = edit_files_add(&context, path, NULL, NULL); if (r < 0) return r; } return do_edit_files_and_install(&context); } static int cat_settings(int argc, char *argv[], void *userdata) { int r = 0; if (arg_transport != BUS_TRANSPORT_LOCAL) return log_error_errno(SYNTHETIC_ERRNO(EOPNOTSUPP), "Cat is only supported on the host machine."); pager_open(arg_pager_flags); STRV_FOREACH(name, strv_skip(argv, 1)) { _cleanup_free_ char *file = NULL, *path = NULL; int q; if (path_is_absolute(*name)) { if (!path_is_safe(*name)) return log_error_errno(SYNTHETIC_ERRNO(EINVAL), "Invalid settings file path '%s'.", *name); q = cat_files(*name, /* dropins = */ NULL, /* flags = */ 0); if (q < 0) return r < 0 ? r : q; continue; } q = normalize_nspawn_filename(*name, &file); if (q < 0) return r < 0 ? r : q; q = get_settings_path(file, &path); if (q == -ENOENT) { log_error_errno(q, "No settings file found for machine '%s'.", *name); r = r < 0 ? r : q; continue; } if (q < 0) { log_error_errno(q, "Failed to get the path of the settings file: %m"); return r < 0 ? r : q; } q = cat_files(path, /* dropins = */ NULL, /* flags = */ 0); if (q < 0) return r < 0 ? r : q; } return r; } static int remove_image(int argc, char *argv[], void *userdata) { sd_bus *bus = ASSERT_PTR(userdata); int r; polkit_agent_open_if_enabled(arg_transport, arg_ask_password); for (int 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 = bus_message_new_method_call(bus, &m, bus_machine_mgr, "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 = ASSERT_PTR(userdata); int r; polkit_agent_open_if_enabled(arg_transport, arg_ask_password); r = bus_call_method( bus, bus_machine_mgr, "RenameImage", &error, NULL, "ss", argv[1], argv[2]); if (r < 0) return log_error_errno(r, "Could not rename image: %s", bus_error_message(&error, 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 = ASSERT_PTR(userdata); int r; polkit_agent_open_if_enabled(arg_transport, arg_ask_password); r = bus_message_new_method_call(bus, &m, bus_machine_mgr, "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 = ASSERT_PTR(userdata); int b = true, r; if (argc > 2) { b = parse_boolean(argv[2]); if (b < 0) return log_error_errno(SYNTHETIC_ERRNO(EINVAL), "Failed to parse boolean argument: %s", argv[2]); } polkit_agent_open_if_enabled(arg_transport, arg_ask_password); r = bus_call_method(bus, bus_machine_mgr, "MarkImageReadOnly", &error, NULL, "sb", argv[1], b); if (r < 0) return log_error_errno(r, "Could not mark image read-only: %s", bus_error_message(&error, 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 = bus_call_method(bus, bus_machine_mgr, "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 (!hostname_is_valid(name, 0)) return log_error_errno(SYNTHETIC_ERRNO(EINVAL), "Invalid machine name %s.", name); 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 = ASSERT_PTR(userdata); int r; polkit_agent_open_if_enabled(arg_transport, arg_ask_password); ask_password_agent_open_if_enabled(arg_transport, arg_ask_password); r = bus_wait_for_jobs_new(bus, &w); if (r < 0) return log_oom(); for (int 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) return log_error_errno(SYNTHETIC_ERRNO(ENXIO), "Machine image '%s' does not exist.", argv[i]); r = bus_call_method( bus, bus_systemd_mgr, "StartUnit", &error, &reply, "ss", unit, "fail"); if (r < 0) return log_error_errno(r, "Failed to start unit: %s", bus_error_message(&error, 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; InstallChange *changes = NULL; size_t n_changes = 0; const char *method; sd_bus *bus = ASSERT_PTR(userdata); int r; polkit_agent_open_if_enabled(arg_transport, arg_ask_password); method = streq(argv[0], "enable") ? "EnableUnitFiles" : "DisableUnitFiles"; r = bus_message_new_method_call(bus, &m, bus_systemd_mgr, 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); if (streq(argv[0], "enable")) { r = sd_bus_message_append(m, "s", "machines.target"); if (r < 0) return bus_log_create_error(r); } for (int 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) return log_error_errno(SYNTHETIC_ERRNO(ENXIO), "Machine image '%s' does not exist.", argv[i]); 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) return log_error_errno(r, "Failed to enable or disable unit: %s", bus_error_message(&error, r)); if (streq(argv[0], "enable")) { r = sd_bus_message_read(reply, "b", NULL); 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 = bus_call_method(bus, bus_systemd_mgr, "Reload", &error, NULL, NULL); if (r < 0) { log_error("Failed to reload daemon: %s", bus_error_message(&error, r)); goto finish; } if (arg_now) { _cleanup_strv_free_ char **new_args = NULL; new_args = strv_new(streq(argv[0], "enable") ? "start" : "poweroff"); if (!new_args) { r = log_oom(); goto finish; } r = strv_extend_strv(&new_args, argv + 1, /* filter_duplicates = */ false); if (r < 0) { log_oom(); goto finish; } if (streq(argv[0], "enable")) r = start_machine(strv_length(new_args), new_args, userdata); else r = poweroff_machine(strv_length(new_args), new_args, userdata); } finish: install_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(arg_transport, arg_ask_password); 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 = bus_match_signal_async( bus, &slot_job_removed, bus_import_mgr, "TransferRemoved", match_transfer_removed, NULL, &path); if (r < 0) return log_error_errno(r, "Failed to request match: %m"); r = sd_bus_match_signal_async( bus, &slot_log_message, "org.freedesktop.import1", NULL, "org.freedesktop.import1.Transfer", "LogMessage", match_log_message, NULL, &path); if (r < 0) return log_error_errno(r, "Failed to request match: %m"); r = sd_bus_call(bus, m, 0, &error, &reply); if (r < 0) return log_error_errno(r, "Failed to transfer image: %s", bus_error_message(&error, 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); (void) sd_event_add_signal(event, NULL, SIGINT, transfer_signal_handler, UINT32_TO_PTR(id)); (void) 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, *fn = NULL; const char *local = NULL, *path = NULL; _cleanup_close_ int fd = -EBADF; sd_bus *bus = ASSERT_PTR(userdata); int r; if (argc >= 2) path = empty_or_dash_to_null(argv[1]); if (argc >= 3) local = empty_or_dash_to_null(argv[2]); else if (path) { r = path_extract_filename(path, &fn); if (r < 0) return log_error_errno(r, "Cannot extract container name from filename: %m"); if (r == O_DIRECTORY) return log_error_errno(SYNTHETIC_ERRNO(EISDIR), "Path '%s' refers to directory, but we need a regular file: %m", path); local = fn; } if (!local) return log_error_errno(SYNTHETIC_ERRNO(EINVAL), "Need either path or local name."); r = tar_strip_suffixes(local, &ll); if (r < 0) return log_oom(); local = ll; if (!hostname_is_valid(local, 0)) return log_error_errno(SYNTHETIC_ERRNO(EINVAL), "Local name %s is not a suitable machine name.", local); 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 = bus_message_new_method_call(bus, &m, bus_import_mgr, "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, *fn = NULL; const char *local = NULL, *path = NULL; _cleanup_close_ int fd = -EBADF; sd_bus *bus = ASSERT_PTR(userdata); int r; if (argc >= 2) path = empty_or_dash_to_null(argv[1]); if (argc >= 3) local = empty_or_dash_to_null(argv[2]); else if (path) { r = path_extract_filename(path, &fn); if (r < 0) return log_error_errno(r, "Cannot extract container name from filename: %m"); if (r == O_DIRECTORY) return log_error_errno(SYNTHETIC_ERRNO(EISDIR), "Path '%s' refers to directory, but we need a regular file: %m", path); local = fn; } if (!local) return log_error_errno(SYNTHETIC_ERRNO(EINVAL), "Need either path or local name."); r = raw_strip_suffixes(local, &ll); if (r < 0) return log_oom(); local = ll; if (!hostname_is_valid(local, 0)) return log_error_errno(SYNTHETIC_ERRNO(EINVAL), "Local name %s is not a suitable machine name.", local); 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 = bus_message_new_method_call(bus, &m, bus_import_mgr, "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 int import_fs(int argc, char *argv[], void *userdata) { _cleanup_(sd_bus_message_unrefp) sd_bus_message *m = NULL; const char *local = NULL, *path = NULL; _cleanup_free_ char *fn = NULL; _cleanup_close_ int fd = -EBADF; sd_bus *bus = ASSERT_PTR(userdata); int r; if (argc >= 2) path = empty_or_dash_to_null(argv[1]); if (argc >= 3) local = empty_or_dash_to_null(argv[2]); else if (path) { r = path_extract_filename(path, &fn); if (r < 0) return log_error_errno(r, "Cannot extract container name from filename: %m"); local = fn; } if (!local) return log_error_errno(SYNTHETIC_ERRNO(EINVAL), "Need either path or local name."); if (!hostname_is_valid(local, 0)) return log_error_errno(SYNTHETIC_ERRNO(EINVAL), "Local name %s is not a suitable machine name.", local); if (path) { fd = open(path, O_DIRECTORY|O_RDONLY|O_CLOEXEC); if (fd < 0) return log_error_errno(errno, "Failed to open directory '%s': %m", path); } r = bus_message_new_method_call(bus, &m, bus_import_mgr, "ImportFileSystem"); 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 = -EBADF; const char *local = NULL, *path = NULL; sd_bus *bus = ASSERT_PTR(userdata); int r; local = argv[1]; if (!hostname_is_valid(local, 0)) return log_error_errno(SYNTHETIC_ERRNO(EINVAL), "Machine name %s is not valid.", local); if (argc >= 3) path = argv[2]; path = empty_or_dash_to_null(path); 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 = bus_message_new_method_call(bus, &m, bus_import_mgr, "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 = -EBADF; const char *local = NULL, *path = NULL; sd_bus *bus = ASSERT_PTR(userdata); int r; local = argv[1]; if (!hostname_is_valid(local, 0)) return log_error_errno(SYNTHETIC_ERRNO(EINVAL), "Machine name %s is not valid.", local); if (argc >= 3) path = argv[2]; path = empty_or_dash_to_null(path); 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 = bus_message_new_method_call(bus, &m, bus_import_mgr, "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 = ASSERT_PTR(userdata); int r; remote = argv[1]; if (!http_url_is_valid(remote) && !file_url_is_valid(remote)) return log_error_errno(SYNTHETIC_ERRNO(EINVAL), "URL '%s' is not valid.", remote); 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; } local = empty_or_dash_to_null(local); if (local) { r = tar_strip_suffixes(local, &ll); if (r < 0) return log_oom(); local = ll; if (!hostname_is_valid(local, 0)) return log_error_errno(SYNTHETIC_ERRNO(EINVAL), "Local name %s is not a suitable machine name.", local); } r = bus_message_new_method_call(bus, &m, bus_import_mgr, "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 = ASSERT_PTR(userdata); int r; remote = argv[1]; if (!http_url_is_valid(remote) && !file_url_is_valid(remote)) return log_error_errno(SYNTHETIC_ERRNO(EINVAL), "URL '%s' is not valid.", remote); 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; } local = empty_or_dash_to_null(local); if (local) { r = raw_strip_suffixes(local, &ll); if (r < 0) return log_oom(); local = ll; if (!hostname_is_valid(local, 0)) return log_error_errno(SYNTHETIC_ERRNO(EINVAL), "Local name %s is not a suitable machine name.", local); } r = bus_message_new_method_call(bus, &m, bus_import_mgr, "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 TransferInfo *a, const TransferInfo *b) { return strcmp(a->local, b->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; const char *type, *remote, *local; sd_bus *bus = userdata; uint32_t id, max_id = 0; size_t n_transfers = 0; double progress; int r; pager_open(arg_pager_flags); r = bus_call_method(bus, bus_import_mgr, "ListTransfers", &error, &reply, NULL); if (r < 0) return log_error_errno(r, "Could not get transfers: %s", bus_error_message(&error, 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, NULL)) > 0) { size_t l; if (!GREEDY_REALLOC(transfers, 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); typesafe_qsort(transfers, n_transfers, 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 (size_t j = 0; j < n_transfers; j++) if (transfers[j].progress < 0) printf("%*" PRIu32 " %*s %-*s %-*s %-*s\n", (int) MAX(2U, DECIMAL_STR_WIDTH(max_id)), transfers[j].id, (int) 7, "n/a", (int) max_type, transfers[j].type, (int) max_local, transfers[j].local, (int) max_remote, transfers[j].remote); else 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) { if (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 = ASSERT_PTR(userdata); int r; polkit_agent_open_if_enabled(arg_transport, arg_ask_password); for (int 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 = bus_call_method(bus, bus_import_mgr, "CancelTransfer", &error, NULL, "u", id); if (r < 0) return log_error_errno(r, "Could not cancel transfer: %s", bus_error_message(&error, 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; polkit_agent_open_if_enabled(arg_transport, arg_ask_password); if (STR_IN_SET(argv[argc-1], "-", "none", "infinity")) limit = UINT64_MAX; else { r = parse_size(argv[argc-1], 1024, &limit); if (r < 0) return log_error_errno(r, "Failed to parse size: %s", argv[argc-1]); } if (argc > 2) /* With two arguments changes the quota limit of the * specified image */ r = bus_call_method(bus, bus_machine_mgr, "SetImageLimit", &error, NULL, "st", argv[1], limit); else /* With one argument changes the pool quota limit */ r = bus_call_method(bus, bus_machine_mgr, "SetPoolLimit", &error, NULL, "t", limit); if (r < 0) return log_error_errno(r, "Could not set limit: %s", bus_error_message(&error, 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; sd_bus *bus = userdata; const char *name; unsigned c = 0; int r; polkit_agent_open_if_enabled(arg_transport, arg_ask_password); r = bus_message_new_method_call(bus, &m, bus_machine_mgr, "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) { if (usage == UINT64_MAX) { log_info("Removed image '%s'", name); total = UINT64_MAX; } else { log_info("Removed image '%s'. Freed exclusive disk space: %s", name, FORMAT_BYTES(usage)); if (total != UINT64_MAX) total += usage; } c++; } r = sd_bus_message_exit_container(reply); if (r < 0) return bus_log_parse_error(r); if (total == UINT64_MAX) log_info("Removed %u images in total.", c); else log_info("Removed %u images in total. Total freed exclusive disk space: %s.", c, FORMAT_BYTES(total)); return 0; } static int help(int argc, char *argv[], void *userdata) { _cleanup_free_ char *link = NULL; int r; pager_open(arg_pager_flags); r = terminal_urlify_man("machinectl", "1", &link); if (r < 0) return log_oom(); printf("%s [OPTIONS...] COMMAND ...\n\n" "%sSend control commands to or query the virtual machine and container%s\n" "%sregistration manager.%s\n" "\nMachine 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" "\nImage 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" " edit NAME|FILE... Edit settings of one or more VMs/containers\n" " cat NAME|FILE... Show settings of one or more VMs/containers\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" "\nImage 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" " import-fs DIRECTORY [NAME] Import a local directory container 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" "\nOptions:\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-whom=WHOM Whom 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, short-precise,\n" " short-iso, short-iso-precise, short-full,\n" " short-monotonic, short-unix, short-delta,\n" " json, json-pretty, json-sse, json-seq, cat,\n" " verbose, export, with-unit)\n" " --verify=MODE Verification mode for downloaded images (no,\n" " checksum, signature)\n" " --force Download image even if already exists\n" " --now Start or power off container after enabling or\n" " disabling it\n" "\nSee the %s for details.\n", program_invocation_short_name, ansi_highlight(), ansi_normal(), ansi_highlight(), ansi_normal(), link); return 0; } static int parse_argv(int argc, char *argv[]) { enum { ARG_VERSION = 0x100, ARG_NO_PAGER, ARG_NO_LEGEND, ARG_VALUE, ARG_KILL_WHOM, ARG_READ_ONLY, ARG_MKDIR, ARG_NO_ASK_PASSWORD, ARG_VERIFY, ARG_NOW, ARG_FORCE, ARG_FORMAT, ARG_UID, ARG_MAX_ADDRESSES, }; 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-whom", required_argument, NULL, ARG_KILL_WHOM }, { "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 }, { "now", no_argument, NULL, ARG_NOW }, { "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_MAX_ADDRESSES }, {} }; bool reorder = false; int c, r, shell = -1; assert(argc >= 0); assert(argv); /* Resetting to 0 forces the invocation of an internal initialization routine of getopt_long() * that checks for GNU extensions in optstring ('-' or '+' at the beginning). */ optind = 0; for (;;) { static const char option_string[] = "-hp:als:H:M:qn:o:E:"; 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 them, even if it is * empty. */ SET_FLAG(arg_print_flags, BUS_PRINT_PROPERTY_SHOW_EMPTY, true); break; case 'a': SET_FLAG(arg_print_flags, BUS_PRINT_PROPERTY_SHOW_EMPTY, true); arg_all = true; break; case ARG_VALUE: SET_FLAG(arg_print_flags, BUS_PRINT_PROPERTY_ONLY_VALUE, true); break; case 'l': arg_full = true; break; case 'n': if (safe_atou(optarg, &arg_lines) < 0) return log_error_errno(SYNTHETIC_ERRNO(EINVAL), "Failed to parse lines '%s'", optarg); break; case 'o': if (streq(optarg, "help")) { DUMP_STRING_TABLE(output_mode, OutputMode, _OUTPUT_MODE_MAX); return 0; } r = output_mode_from_string(optarg); if (r < 0) return log_error_errno(r, "Unknown output '%s'.", optarg); arg_output = r; if (OUTPUT_MODE_IS_JSON(arg_output)) arg_legend = false; break; case ARG_NO_PAGER: arg_pager_flags |= PAGER_DISABLE; break; case ARG_NO_LEGEND: arg_legend = false; break; case ARG_KILL_WHOM: arg_kill_whom = optarg; break; case 's': r = parse_signal_argument(optarg, &arg_signal); if (r <= 0) return r; 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: if (streq(optarg, "help")) { DUMP_STRING_TABLE(import_verify, ImportVerify, _IMPORT_VERIFY_MAX); return 0; } r = import_verify_from_string(optarg); if (r < 0) return log_error_errno(r, "Failed to parse --verify= setting: %s", optarg); arg_verify = r; break; case ARG_NOW: arg_now = true; break; case ARG_FORCE: arg_force = true; break; case ARG_FORMAT: if (!STR_IN_SET(optarg, "uncompressed", "xz", "gzip", "bzip2")) return log_error_errno(SYNTHETIC_ERRNO(EINVAL), "Unknown format: %s", optarg); arg_format = optarg; break; case ARG_UID: arg_uid = optarg; break; case 'E': r = strv_env_replace_strdup_passthrough(&arg_setenv, optarg); if (r < 0) return log_error_errno(r, "Cannot assign environment variable %s: %m", optarg); break; case ARG_MAX_ADDRESSES: if (streq(optarg, "all")) arg_max_addresses = UINT_MAX; else if (safe_atou(optarg, &arg_max_addresses) < 0) return log_error_errno(SYNTHETIC_ERRNO(EINVAL), "Invalid number of addresses: %s", optarg); break; case '?': return -EINVAL; default: assert_not_reached(); } } done: if (shell >= 0) { char *t; /* 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 (int 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 }, { "edit", 2, VERB_ANY, 0, edit_settings }, { "cat", 2, VERB_ANY, 0, cat_settings }, { "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 }, { "import-fs", 2, 3, 0, import_fs }, { "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); } static int run(int argc, char *argv[]) { _cleanup_(sd_bus_flush_close_unrefp) sd_bus *bus = NULL; int r; setlocale(LC_ALL, ""); log_setup(); /* The journal merging logic potentially needs a lot of fds. */ (void) rlimit_nofile_bump(HIGH_RLIMIT_NOFILE); sigbus_install(); r = parse_argv(argc, argv); if (r <= 0) return r; r = bus_connect_transport(arg_transport, arg_host, RUNTIME_SCOPE_SYSTEM, &bus); if (r < 0) return bus_log_connect_error(r, arg_transport); (void) sd_bus_set_allow_interactive_authorization(bus, arg_ask_password); return machinectl_main(argc, argv, bus); } DEFINE_MAIN_FUNCTION(run);