X-Git-Url: http://www.chiark.greenend.org.uk/ucgi/~ianmdlvl/git?a=blobdiff_plain;f=src%2Fmachine%2Fmachinectl.c;h=0abc251cf808f1815ea40939b1184b682b6a8b9f;hb=d8f52ed25a9edce75fda5251c977b7898e33887e;hp=a62ffe30ac385f0ea70e3c7be8ff67248de1e8c2;hpb=f2cbe59e113f08549949a76ac5b9b3972df4cc30;p=elogind.git diff --git a/src/machine/machinectl.c b/src/machine/machinectl.c index a62ffe30a..0abc251cf 100644 --- a/src/machine/machinectl.c +++ b/src/machine/machinectl.c @@ -50,6 +50,7 @@ #include "path-util.h" #include "mkdir.h" #include "copy.h" +#include "verbs.h" static char **arg_property = NULL; static bool arg_all = false; @@ -62,6 +63,7 @@ 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 void pager_open_if_enabled(void) { @@ -72,13 +74,17 @@ static void pager_open_if_enabled(void) { pager_open(false); } -static int list_machines(sd_bus *bus, char **args, unsigned n) { +static int list_machines(int argc, char *argv[], void *userdata) { + _cleanup_bus_message_unref_ sd_bus_message *reply = NULL; _cleanup_bus_error_free_ sd_bus_error error = SD_BUS_ERROR_NULL; const char *name, *class, *service, *object; + sd_bus *bus = userdata; unsigned k = 0; int r; + assert(bus); + pager_open_if_enabled(); r = sd_bus_call_method( @@ -120,6 +126,140 @@ static int list_machines(sd_bus *bus, char **args, unsigned n) { return 0; } +typedef struct ImageInfo { + const char *name; + const char *type; + bool read_only; + usec_t crtime; + usec_t mtime; + uint64_t size; +} ImageInfo; + +static int compare_image_info(const void *a, const void *b) { + const ImageInfo *x = a, *y = b; + + return strcmp(x->name, y->name); +} + +static int list_images(int argc, char *argv[], void *userdata) { + + _cleanup_bus_error_free_ sd_bus_error error = SD_BUS_ERROR_NULL; + size_t max_name = strlen("NAME"), max_type = strlen("TYPE"), max_size = strlen("SIZE"), max_crtime = strlen("CREATED"), max_mtime = strlen("MODIFIED"); + _cleanup_bus_message_unref_ sd_bus_message *reply = NULL; + _cleanup_free_ ImageInfo *images = NULL; + size_t n_images = 0, n_allocated = 0, j; + const char *name, *type, *object; + sd_bus *bus = userdata; + uint64_t crtime, mtime, size; + int read_only, r; + + assert(bus); + + pager_open_if_enabled(); + + r = sd_bus_call_method( + bus, + "org.freedesktop.machine1", + "/org/freedesktop/machine1", + "org.freedesktop.machine1.Manager", + "ListImages", + &error, + &reply, + ""); + if (r < 0) { + log_error("Could not get images: %s", bus_error_message(&error, -r)); + return r; + } + + r = sd_bus_message_enter_container(reply, SD_BUS_TYPE_ARRAY, "(ssbttto)"); + if (r < 0) + return bus_log_parse_error(r); + + while ((r = sd_bus_message_read(reply, "(ssbttto)", &name, &type, &read_only, &crtime, &mtime, &size, &object)) > 0) { + char buf[MAX(FORMAT_TIMESTAMP_MAX, FORMAT_BYTES_MAX)]; + size_t l; + + if (name[0] == '.' && !arg_all) + continue; + + if (!GREEDY_REALLOC(images, n_allocated, n_images + 1)) + return log_oom(); + + images[n_images].name = name; + images[n_images].type = type; + images[n_images].read_only = read_only; + images[n_images].crtime = crtime; + images[n_images].mtime = mtime; + images[n_images].size = size; + + l = strlen(name); + if (l > max_name) + max_name = l; + + l = strlen(type); + if (l > max_type) + max_type = l; + + if (crtime != 0) { + l = strlen(strna(format_timestamp(buf, sizeof(buf), crtime))); + if (l > max_crtime) + max_crtime = l; + } + + if (mtime != 0) { + l = strlen(strna(format_timestamp(buf, sizeof(buf), mtime))); + if (l > max_mtime) + max_mtime = l; + } + + if (size != (uint64_t) -1) { + l = strlen(strna(format_bytes(buf, sizeof(buf), size))); + if (l > max_size) + max_size = l; + } + + n_images++; + } + if (r < 0) + return bus_log_parse_error(r); + + r = sd_bus_message_exit_container(reply); + if (r < 0) + return bus_log_parse_error(r); + + qsort_safe(images, n_images, sizeof(ImageInfo), compare_image_info); + + if (arg_legend) + printf("%-*s %-*s %-3s %-*s %-*s %-*s\n", + (int) max_name, "NAME", + (int) max_type, "TYPE", + "RO", + (int) max_size, "SIZE", + (int) max_crtime, "CREATED", + (int) max_mtime, "MODIFIED"); + + for (j = 0; j < n_images; j++) { + char crtime_buf[FORMAT_TIMESTAMP_MAX], mtime_buf[FORMAT_TIMESTAMP_MAX], size_buf[FORMAT_BYTES_MAX]; + + printf("%-*s %-*s %s%-3s%s %-*s %-*s %-*s\n", + (int) max_name, images[j].name, + (int) max_type, images[j].type, + images[j].read_only ? ansi_highlight_red() : "", yes_no(images[j].read_only), images[j].read_only ? ansi_highlight_off() : "", + (int) max_size, strna(format_bytes(size_buf, sizeof(size_buf), images[j].size)), + (int) max_crtime, strna(format_timestamp(crtime_buf, sizeof(crtime_buf), images[j].crtime)), + (int) max_mtime, strna(format_timestamp(mtime_buf, sizeof(mtime_buf), images[j].mtime))); + } + + if (r < 0) + return bus_log_parse_error(r); + + + if (arg_legend) + printf("\n%zu images listed.\n", n_images); + + return 0; +} + static int show_unit_cgroup(sd_bus *bus, const char *unit, pid_t leader) { _cleanup_bus_message_unref_ sd_bus_message *reply = NULL; _cleanup_bus_error_free_ sd_bus_error error = SD_BUS_ERROR_NULL; @@ -297,6 +437,7 @@ static void print_machine_status_info(sd_bus *bus, MachineStatusInfo *i) { char since2[FORMAT_TIMESTAMP_MAX], *s2; int ifi = -1; + assert(bus); assert(i); fputs(strna(i->name), stdout); @@ -395,7 +536,7 @@ static int map_netif(sd_bus *bus, const char *member, sd_bus_message *m, sd_bus_ return 0; } -static int show_info(const char *verb, sd_bus *bus, const char *path, bool *new_line) { +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) }, @@ -413,6 +554,8 @@ static int show_info(const char *verb, sd_bus *bus, const char *path, bool *new_ MachineStatusInfo info = {}; int r; + assert(verb); + assert(bus); assert(path); assert(new_line); @@ -440,9 +583,13 @@ static int show_info(const char *verb, sd_bus *bus, const char *path, bool *new_ return r; } -static int show_properties(sd_bus *bus, const char *path, bool *new_line) { +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"); @@ -455,30 +602,30 @@ static int show_properties(sd_bus *bus, const char *path, bool *new_line) { return r; } -static int show(sd_bus *bus, char **args, unsigned n) { - _cleanup_bus_message_unref_ sd_bus_message *reply = NULL; +static int show_machine(int argc, char *argv[], void *userdata) { + _cleanup_bus_error_free_ sd_bus_error error = SD_BUS_ERROR_NULL; - int r = 0; - unsigned i; + _cleanup_bus_message_unref_ sd_bus_message *reply = NULL; bool properties, new_line = false; + sd_bus *bus = userdata; + int r = 0, i; assert(bus); - assert(args); - properties = !strstr(args[0], "status"); + properties = !strstr(argv[0], "status"); pager_open_if_enabled(); - if (properties && n <= 1) { + if (properties && argc <= 1) { /* If no argument is specified, inspect the manager * itself */ - r = show_properties(bus, "/org/freedesktop/machine1", &new_line); + r = show_machine_properties(bus, "/org/freedesktop/machine1", &new_line); if (r < 0) return r; } - for (i = 1; i < n; i++) { + for (i = 1; i < argc; i++) { const char *path = NULL; r = sd_bus_call_method( @@ -489,7 +636,7 @@ static int show(sd_bus *bus, char **args, unsigned n) { "GetMachine", &error, &reply, - "s", args[i]); + "s", argv[i]); if (r < 0) { log_error("Could not get path to machine: %s", bus_error_message(&error, -r)); return r; @@ -500,35 +647,220 @@ static int show(sd_bus *bus, char **args, unsigned n) { return bus_log_parse_error(r); if (properties) - r = show_properties(bus, path, &new_line); + r = show_machine_properties(bus, path, &new_line); else - r = show_info(args[0], bus, path, &new_line); + r = show_machine_info(argv[0], bus, path, &new_line); } return r; } -static int kill_machine(sd_bus *bus, char **args, unsigned n) { +typedef struct ImageStatusInfo { + char *name; + char *path; + char *type; + int read_only; + usec_t crtime; + usec_t mtime; + uint64_t size; + uint64_t limit; + uint64_t size_exclusive; + uint64_t limit_exclusive; +} ImageStatusInfo; + +static void print_image_status_info(sd_bus *bus, ImageStatusInfo *i) { + char ts_relative[FORMAT_TIMESTAMP_RELATIVE_MAX], *s1; + char ts_absolute[FORMAT_TIMESTAMP_MAX], *s2; + char bs[FORMAT_BYTES_MAX], *s3; + char bs_exclusive[FORMAT_BYTES_MAX], *s4; + + assert(bus); + assert(i); + + if (i->name) { + fputs(i->name, stdout); + putchar('\n'); + } + + if (i->path) + printf("\t Type: %s\n", i->type); + + if (i->path) + printf("\t Path: %s\n", i->path); + + printf("\t RO: %s%s%s\n", + i->read_only ? ansi_highlight_red() : "", + i->read_only ? "read-only" : "writable", + i->read_only ? ansi_highlight_off() : ""); + + s1 = format_timestamp_relative(ts_relative, sizeof(ts_relative), i->crtime); + s2 = format_timestamp(ts_absolute, sizeof(ts_absolute), i->crtime); + if (s1 && s2) + printf("\t Created: %s; %s\n", s2, s1); + else if (s2) + printf("\t Created: %s\n", s2); + + s1 = format_timestamp_relative(ts_relative, sizeof(ts_relative), i->mtime); + s2 = format_timestamp(ts_absolute, sizeof(ts_absolute), i->mtime); + if (s1 && s2) + printf("\tModified: %s; %s\n", s2, s1); + else if (s2) + printf("\tModified: %s\n", s2); + + s3 = format_bytes(bs, sizeof(bs), i->size); + s4 = i->size_exclusive != i->size ? format_bytes(bs_exclusive, sizeof(bs_exclusive), i->size_exclusive) : NULL; + if (s3 && s4) + printf("\t Size: %s (exclusive: %s)\n", s3, s4); + else if (s3) + printf("\t Size: %s\n", s3); + + s3 = format_bytes(bs, sizeof(bs), i->limit); + s4 = i->limit_exclusive != i->limit ? format_bytes(bs_exclusive, sizeof(bs_exclusive), i->limit_exclusive) : NULL; + if (s3 && s4) + printf("\t Limit: %s (exclusive: %s)\n", s3, s4); + else if (s3) + printf("\t Limit: %s\n", s3); +} + +static int show_image_info(const char *verb, sd_bus *bus, const char *path, bool *new_line) { + + static const struct bus_properties_map map[] = { + { "Name", "s", NULL, offsetof(ImageStatusInfo, name) }, + { "Path", "s", NULL, offsetof(ImageStatusInfo, path) }, + { "Type", "s", NULL, offsetof(ImageStatusInfo, type) }, + { "ReadOnly", "b", NULL, offsetof(ImageStatusInfo, read_only) }, + { "CreationTimestamp", "t", NULL, offsetof(ImageStatusInfo, crtime) }, + { "ModificationTimestamp", "t", NULL, offsetof(ImageStatusInfo, mtime) }, + { "Size", "t", NULL, offsetof(ImageStatusInfo, size) }, + { "Limit", "t", NULL, offsetof(ImageStatusInfo, limit) }, + { "SizeExclusive", "t", NULL, offsetof(ImageStatusInfo, size_exclusive) }, + { "LimitExclusive", "t", NULL, offsetof(ImageStatusInfo, limit_exclusive) }, + {} + }; + + ImageStatusInfo info = {}; + int r; + + assert(verb); + assert(bus); + assert(path); + assert(new_line); + + r = bus_map_all_properties(bus, + "org.freedesktop.machine1", + path, + map, + &info); + if (r < 0) + return log_error_errno(r, "Could not get properties: %m"); + + if (*new_line) + printf("\n"); + *new_line = true; + + print_image_status_info(bus, &info); + + free(info.name); + free(info.path); + free(info.type); + + return r; +} + +static int show_image_properties(sd_bus *bus, const char *path, bool *new_line) { + int r; + + assert(bus); + assert(path); + assert(new_line); + + if (*new_line) + printf("\n"); + + *new_line = true; + + r = bus_print_all_properties(bus, "org.freedesktop.machine1", path, arg_property, arg_all); + if (r < 0) + log_error_errno(r, "Could not get properties: %m"); + + return r; +} + +static int show_image(int argc, char *argv[], void *userdata) { + _cleanup_bus_error_free_ sd_bus_error error = SD_BUS_ERROR_NULL; - unsigned i; + _cleanup_bus_message_unref_ sd_bus_message *reply = NULL; + bool properties, new_line = false; + sd_bus *bus = userdata; + int r = 0, i; - assert(args); + assert(bus); - if (!arg_kill_who) - arg_kill_who = "all"; + properties = !strstr(argv[0], "status"); - for (i = 1; i < n; i++) { - int r; + pager_open_if_enabled(); + + if (properties && argc <= 1) { + + /* If no argument is specified, inspect the manager + * itself */ + r = show_image_properties(bus, "/org/freedesktop/machine1", &new_line); + if (r < 0) + return r; + } + + for (i = 1; i < argc; i++) { + const char *path = NULL; r = sd_bus_call_method( bus, "org.freedesktop.machine1", "/org/freedesktop/machine1", "org.freedesktop.machine1.Manager", - "KillMachine", + "GetImage", &error, - NULL, - "ssi", args[i], arg_kill_who, arg_signal); + &reply, + "s", argv[i]); + if (r < 0) { + log_error("Could not get path to image: %s", bus_error_message(&error, -r)); + return r; + } + + r = sd_bus_message_read(reply, "o", &path); + if (r < 0) + return bus_log_parse_error(r); + + if (properties) + r = show_image_properties(bus, path, &new_line); + else + r = show_image_info(argv[0], bus, path, &new_line); + } + + return r; +} + +static int kill_machine(int argc, char *argv[], void *userdata) { + _cleanup_bus_error_free_ sd_bus_error error = SD_BUS_ERROR_NULL; + sd_bus *bus = userdata; + int i; + + assert(bus); + + if (!arg_kill_who) + arg_kill_who = "all"; + + for (i = 1; i < argc; i++) { + int r; + + r = sd_bus_call_method( + bus, + "org.freedesktop.machine1", + "/org/freedesktop/machine1", + "org.freedesktop.machine1.Manager", + "KillMachine", + &error, + NULL, + "ssi", argv[i], arg_kill_who, arg_signal); if (r < 0) { log_error("Could not kill machine: %s", bus_error_message(&error, -r)); return r; @@ -538,27 +870,28 @@ static int kill_machine(sd_bus *bus, char **args, unsigned n) { return 0; } -static int reboot_machine(sd_bus *bus, char **args, unsigned n) { +static int reboot_machine(int argc, char *argv[], void *userdata) { arg_kill_who = "leader"; arg_signal = SIGINT; /* sysvinit + systemd */ - return kill_machine(bus, args, n); + return kill_machine(argc, argv, userdata); } -static int poweroff_machine(sd_bus *bus, char **args, unsigned n) { +static int poweroff_machine(int argc, char *argv[], void *userdata) { arg_kill_who = "leader"; arg_signal = SIGRTMIN+4; /* only systemd */ - return kill_machine(bus, args, n); + return kill_machine(argc, argv, userdata); } -static int terminate_machine(sd_bus *bus, char **args, unsigned n) { +static int terminate_machine(int argc, char *argv[], void *userdata) { _cleanup_bus_error_free_ sd_bus_error error = SD_BUS_ERROR_NULL; - unsigned i; + sd_bus *bus = userdata; + int i; - assert(args); + assert(bus); - for (i = 1; i < n; i++) { + for (i = 1; i < argc; i++) { int r; r = sd_bus_call_method( @@ -569,7 +902,7 @@ static int terminate_machine(sd_bus *bus, char **args, unsigned n) { "TerminateMachine", &error, NULL, - "s", args[i]); + "s", argv[i]); if (r < 0) { log_error("Could not terminate machine: %s", bus_error_message(&error, -r)); return r; @@ -628,23 +961,21 @@ static int machine_get_leader(sd_bus *bus, const char *name, pid_t *ret) { return 0; } -static int copy_files(sd_bus *bus, char **args, unsigned n) { +static int copy_files(int argc, char *argv[], void *userdata) { char *dest, *host_path, *container_path, *host_dirname, *host_basename, *container_dirname, *container_basename, *t; _cleanup_close_ int hostfd = -1; + sd_bus *bus = userdata; pid_t child, leader; bool copy_from; siginfo_t si; int r; - if (n > 4) { - log_error("Too many arguments."); - return -EINVAL; - } + assert(bus); - copy_from = streq(args[0], "copy-from"); - dest = args[3] ?: args[2]; - host_path = strdupa(copy_from ? dest : args[2]); - container_path = strdupa(copy_from ? args[2] : dest); + copy_from = streq(argv[0], "copy-from"); + dest = argv[3] ?: argv[2]; + host_path = strdupa(copy_from ? dest : argv[2]); + container_path = strdupa(copy_from ? argv[2] : dest); if (!path_is_absolute(container_path)) { log_error("Container path not absolute."); @@ -659,7 +990,7 @@ static int copy_files(sd_bus *bus, char **args, unsigned n) { container_basename = basename(t); container_dirname = dirname(container_path); - r = machine_get_leader(bus, args[1], &leader); + r = machine_get_leader(bus, argv[1], &leader); if (r < 0) return r; @@ -719,8 +1050,9 @@ static int copy_files(sd_bus *bus, char **args, unsigned n) { return 0; } -static int bind_mount(sd_bus *bus, char **args, unsigned n) { +static int bind_mount(int argc, char *argv[], void *userdata) { char mount_slave[] = "/tmp/propagate.XXXXXX", *mount_tmp, *mount_outside, *p; + sd_bus *bus = userdata; pid_t child, leader; const char *dest; siginfo_t si; @@ -729,28 +1061,25 @@ static int bind_mount(sd_bus *bus, char **args, unsigned n) { mount_outside_created = false, mount_outside_mounted = false; int r; + assert(bus); + /* One day, when bind mounting /proc/self/fd/n works across * namespace boundaries we should rework this logic to make * use of it... */ - if (n > 4) { - log_error("Too many arguments."); - return -EINVAL; - } - - dest = args[3] ?: args[2]; + dest = argv[3] ?: argv[2]; if (!path_is_absolute(dest)) { log_error("Destination path not absolute."); return -EINVAL; } - p = strappenda("/run/systemd/nspawn/propagate/", args[1], "/"); + p = strappenda("/run/systemd/nspawn/propagate/", argv[1], "/"); if (access(p, F_OK) < 0) { log_error("Container does not allow propagation of mount points."); return -ENOTSUP; } - r = machine_get_leader(bus, args[1], &leader); + r = machine_get_leader(bus, argv[1], &leader); if (r < 0) return r; @@ -790,7 +1119,7 @@ static int bind_mount(sd_bus *bus, char **args, unsigned n) { mount_tmp_created = true; - if (mount(args[2], mount_tmp, NULL, MS_BIND, NULL) < 0) { + if (mount(argv[2], mount_tmp, NULL, MS_BIND, NULL) < 0) { r = log_error_errno(errno, "Failed to overmount: %m"); goto finish; } @@ -808,7 +1137,7 @@ static int bind_mount(sd_bus *bus, char **args, unsigned n) { * directory. This way it will appear there read-only * right-away. */ - mount_outside = strappenda("/run/systemd/nspawn/propagate/", args[1], "/XXXXXX"); + mount_outside = strappenda("/run/systemd/nspawn/propagate/", argv[1], "/XXXXXX"); if (!mkdtemp(mount_outside)) { r = log_error_errno(errno, "Cannot create propagation directory: %m"); goto finish; @@ -905,191 +1234,365 @@ finish: return r; } -static int openpt_in_namespace(pid_t pid, int flags) { - _cleanup_close_pair_ int pair[2] = { -1, -1 }; - _cleanup_close_ int pidnsfd = -1, mntnsfd = -1, rootfd = -1; - union { - struct cmsghdr cmsghdr; - uint8_t buf[CMSG_SPACE(sizeof(int))]; - } control = {}; - struct msghdr mh = { - .msg_control = &control, - .msg_controllen = sizeof(control), - }; - struct cmsghdr *cmsg; - int master = -1, r; - pid_t child; - siginfo_t si; +static int login_machine(int argc, char *argv[], void *userdata) { + _cleanup_bus_error_free_ sd_bus_error error = SD_BUS_ERROR_NULL; + _cleanup_bus_message_unref_ sd_bus_message *m = NULL, *reply = NULL; + _cleanup_(pty_forward_freep) PTYForward *forward = NULL; + _cleanup_event_unref_ sd_event *event = NULL; + int master = -1, r, ret = 0; + sd_bus *bus = userdata; + const char *pty; + sigset_t mask; + char last_char = 0; + + assert(bus); + + if (arg_transport != BUS_TRANSPORT_LOCAL && + arg_transport != BUS_TRANSPORT_MACHINE) { + log_error("Login only supported on local machines."); + return -ENOTSUP; + } + + 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_message_new_method_call(bus, + &m, + "org.freedesktop.machine1", + "/org/freedesktop/machine1", + "org.freedesktop.machine1.Manager", + "OpenMachineLogin"); + if (r < 0) + return bus_log_create_error(r); - r = namespace_open(pid, &pidnsfd, &mntnsfd, NULL, &rootfd); + r = sd_bus_message_set_allow_interactive_authorization(m, true); if (r < 0) + return bus_log_create_error(r); + + r = sd_bus_message_append(m, "s", argv[1]); + if (r < 0) + return bus_log_create_error(r); + + r = sd_bus_call(bus, m, 0, &error, &reply); + if (r < 0) { + log_error("Failed to get machine PTY: %s", bus_error_message(&error, -r)); return r; + } - if (socketpair(AF_UNIX, SOCK_DGRAM, 0, pair) < 0) - return -errno; + r = sd_bus_message_read(reply, "hs", &master, &pty); + if (r < 0) + return bus_log_parse_error(r); - child = fork(); - if (child < 0) - return -errno; + assert_se(sigemptyset(&mask) == 0); + sigset_add_many(&mask, SIGWINCH, SIGTERM, SIGINT, -1); + assert_se(sigprocmask(SIG_BLOCK, &mask, NULL) == 0); - if (child == 0) { - pair[0] = safe_close(pair[0]); + log_info("Connected to container %s. Press ^] three times within 1s to exit session.", argv[1]); - r = namespace_enter(pidnsfd, mntnsfd, -1, rootfd); - if (r < 0) - _exit(EXIT_FAILURE); + sd_event_add_signal(event, NULL, SIGINT, NULL, NULL); + sd_event_add_signal(event, NULL, SIGTERM, NULL, NULL); - master = posix_openpt(flags); - if (master < 0) - _exit(EXIT_FAILURE); + r = pty_forward_new(event, master, true, &forward); + if (r < 0) + return log_error_errno(r, "Failed to create PTY forwarder: %m"); - cmsg = CMSG_FIRSTHDR(&mh); - cmsg->cmsg_level = SOL_SOCKET; - cmsg->cmsg_type = SCM_RIGHTS; - cmsg->cmsg_len = CMSG_LEN(sizeof(int)); - memcpy(CMSG_DATA(cmsg), &master, sizeof(int)); + r = sd_event_loop(event); + if (r < 0) + return log_error_errno(r, "Failed to run event loop: %m"); - mh.msg_controllen = cmsg->cmsg_len; + pty_forward_last_char(forward, &last_char); - if (sendmsg(pair[1], &mh, MSG_NOSIGNAL) < 0) - _exit(EXIT_FAILURE); + forward = pty_forward_free(forward); - _exit(EXIT_SUCCESS); + if (last_char != '\n') + fputc('\n', stdout); + + log_info("Connection to container %s terminated.", argv[1]); + + sd_event_get_exit_code(event, &ret); + return ret; +} + +static int remove_image(int argc, char *argv[], void *userdata) { + _cleanup_bus_error_free_ sd_bus_error error = SD_BUS_ERROR_NULL; + sd_bus *bus = userdata; + int r, i; + + assert(bus); + + for (i = 1; i < argc; i++) { + r = sd_bus_call_method( + bus, + "org.freedesktop.machine1", + "/org/freedesktop/machine1", + "org.freedesktop.machine1.Manager", + "RemoveImage", + &error, + NULL, + "s", argv[i]); + if (r < 0) { + log_error("Could not remove image: %s", bus_error_message(&error, -r)); + return r; + } } - pair[1] = safe_close(pair[1]); + return 0; +} - r = wait_for_terminate(child, &si); - if (r < 0) +static int rename_image(int argc, char *argv[], void *userdata) { + _cleanup_bus_error_free_ sd_bus_error error = SD_BUS_ERROR_NULL; + sd_bus *bus = userdata; + int r; + + 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; - if (si.si_code != CLD_EXITED || si.si_status != EXIT_SUCCESS) - return -EIO; + } - if (recvmsg(pair[0], &mh, MSG_NOSIGNAL|MSG_CMSG_CLOEXEC) < 0) - return -errno; + return 0; +} - for (cmsg = CMSG_FIRSTHDR(&mh); cmsg; cmsg = CMSG_NXTHDR(&mh, cmsg)) - if (cmsg->cmsg_level == SOL_SOCKET && cmsg->cmsg_type == SCM_RIGHTS) { - int *fds; - unsigned n_fds; +static int clone_image(int argc, char *argv[], void *userdata) { + _cleanup_bus_error_free_ sd_bus_error error = SD_BUS_ERROR_NULL; + sd_bus *bus = userdata; + int r; - fds = (int*) CMSG_DATA(cmsg); - n_fds = (cmsg->cmsg_len - CMSG_LEN(0)) / sizeof(int); + r = sd_bus_call_method( + bus, + "org.freedesktop.machine1", + "/org/freedesktop/machine1", + "org.freedesktop.machine1.Manager", + "CloneImage", + &error, + NULL, + "ssb", argv[1], argv[2], arg_read_only); + if (r < 0) { + log_error("Could not clone image: %s", bus_error_message(&error, -r)); + return r; + } - if (n_fds != 1) { - close_many(fds, n_fds); - return -EIO; - } + return 0; +} + +static int read_only_image(int argc, char *argv[], void *userdata) { + _cleanup_bus_error_free_ sd_bus_error error = SD_BUS_ERROR_NULL; + sd_bus *bus = userdata; + int b = true, r; - master = fds[0]; + if (argc > 2) { + b = parse_boolean(argv[2]); + if (b < 0) { + log_error("Failed to parse boolean argument: %s", argv[2]); + return -EINVAL; } + } - if (master < 0) - return -EIO; + 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 master; + return 0; } -static int login_machine(sd_bus *bus, char **args, unsigned n) { +static int start_machine(int argc, char *argv[], void *userdata) { _cleanup_bus_error_free_ sd_bus_error error = SD_BUS_ERROR_NULL; - _cleanup_bus_message_unref_ sd_bus_message *reply = NULL; - _cleanup_bus_close_unref_ sd_bus *container_bus = NULL; - _cleanup_(pty_forward_freep) PTYForward *forward = NULL; - _cleanup_event_unref_ sd_event *event = NULL; - _cleanup_close_ int master = -1; - _cleanup_free_ char *getty = NULL; - const char *pty, *p; - pid_t leader; - sigset_t mask; - int r, ret = 0; + _cleanup_(bus_wait_for_jobs_freep) BusWaitForJobs *w = NULL; + sd_bus *bus = userdata; + int r, i; assert(bus); - assert(args); - if (arg_transport != BUS_TRANSPORT_LOCAL) { - log_error("Login only supported on local machines."); - return -ENOTSUP; + r = bus_wait_for_jobs_new(bus, &w); + if (r < 0) + return log_oom(); + + for (i = 1; i < argc; i++) { + _cleanup_bus_message_unref_ sd_bus_message *m = NULL, *reply = NULL; + _cleanup_free_ char *e = NULL, *unit = NULL; + const char *object; + + if (!machine_name_is_valid(argv[i])) { + log_error("Invalid machine name %s.", argv[i]); + return -EINVAL; + } + + e = unit_name_escape(argv[i]); + if (!e) + return log_oom(); + + unit = unit_name_build("systemd-nspawn", e, ".service"); + if (!unit) + return log_oom(); + + r = sd_bus_message_new_method_call( + bus, + &m, + "org.freedesktop.systemd1", + "/org/freedesktop/systemd1", + "org.freedesktop.systemd1.Manager", + "StartUnit"); + if (r < 0) + return bus_log_create_error(r); + + r = sd_bus_message_set_allow_interactive_authorization(m, true); + if (r < 0) + return bus_log_create_error(r); + + r = sd_bus_message_append(m, "ss", unit, "fail"); + if (r < 0) + return bus_log_create_error(r); + + r = sd_bus_call(bus, m, 0, &error, &reply); + if (r < 0) { + log_error("Failed to start unit: %s", bus_error_message(&error, -r)); + return r; + } + + r = sd_bus_message_read(reply, "o", &object); + if (r < 0) + return bus_log_parse_error(r); + + r = bus_wait_for_jobs_add(w, object); + if (r < 0) + return log_oom(); } - r = sd_event_default(&event); + r = bus_wait_for_jobs(w, arg_quiet); if (r < 0) - return log_error_errno(r, "Failed to get event loop: %m"); + return r; - r = sd_bus_attach_event(bus, event, 0); + return 0; +} + +static int enable_machine(int argc, char *argv[], void *userdata) { + _cleanup_bus_message_unref_ sd_bus_message *m = NULL, *reply = NULL; + _cleanup_bus_error_free_ sd_bus_error error = SD_BUS_ERROR_NULL; + int carries_install_info = 0; + const char *method = NULL; + sd_bus *bus = userdata; + int r, i; + + assert(bus); + + 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 log_error_errno(r, "Failed to attach bus to event loop: %m"); + return bus_log_create_error(r); - r = machine_get_leader(bus, args[1], &leader); + r = sd_bus_message_set_allow_interactive_authorization(m, true); if (r < 0) - return r; + return bus_log_create_error(r); + + r = sd_bus_message_open_container(m, 'a', "s"); + if (r < 0) + return bus_log_create_error(r); - master = openpt_in_namespace(leader, O_RDWR|O_NOCTTY|O_CLOEXEC|O_NDELAY); - if (master < 0) - return log_error_errno(master, "Failed to acquire pseudo tty: %m"); + for (i = 1; i < argc; i++) { + _cleanup_free_ char *e = NULL, *unit = NULL; - pty = ptsname(master); - if (!pty) - return log_error_errno(errno, "Failed to get pty name: %m"); + if (!machine_name_is_valid(argv[i])) { + log_error("Invalid machine name %s.", argv[i]); + return -EINVAL; + } - p = startswith(pty, "/dev/pts/"); - if (!p) { - log_error("Invalid pty name %s.", pty); - return -EIO; + e = unit_name_escape(argv[i]); + if (!e) + return log_oom(); + + unit = unit_name_build("systemd-nspawn", e, ".service"); + if (!unit) + return log_oom(); + + r = sd_bus_message_append(m, "s", unit); + if (r < 0) + return bus_log_create_error(r); } - r = sd_bus_open_system_container(&container_bus, args[1]); + r = sd_bus_message_close_container(m); if (r < 0) - return log_error_errno(r, "Failed to get container bus: %m"); + return bus_log_create_error(r); - getty = strjoin("container-getty@", p, ".service", NULL); - if (!getty) - return log_oom(); - - if (unlockpt(master) < 0) - return log_error_errno(errno, "Failed to unlock tty: %m"); + 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_method(container_bus, - "org.freedesktop.systemd1", - "/org/freedesktop/systemd1", - "org.freedesktop.systemd1.Manager", - "StartUnit", - &error, &reply, - "ss", getty, "replace"); + r = sd_bus_call(bus, m, 0, &error, &reply); if (r < 0) { - log_error("Failed to start getty service: %s", bus_error_message(&error, r)); + log_error("Failed to enable or disable unit: %s", bus_error_message(&error, -r)); return r; } - container_bus = sd_bus_unref(container_bus); + if (streq(argv[0], "enable")) { + r = sd_bus_message_read(reply, "b", carries_install_info); + if (r < 0) + return bus_log_parse_error(r); + } - assert_se(sigemptyset(&mask) == 0); - sigset_add_many(&mask, SIGWINCH, SIGTERM, SIGINT, -1); - assert_se(sigprocmask(SIG_BLOCK, &mask, NULL) == 0); + r = bus_deserialize_and_dump_unit_file_changes(reply, arg_quiet); + if (r < 0) + return r; - log_info("Connected to container %s. Press ^] three times within 1s to exit session.", args[1]); + m = sd_bus_message_unref(m); - sd_event_add_signal(event, NULL, SIGINT, NULL, NULL); - sd_event_add_signal(event, NULL, SIGTERM, NULL, NULL); - - r = pty_forward_new(event, master, &forward); + r = sd_bus_message_new_method_call( + bus, + &m, + "org.freedesktop.systemd1", + "/org/freedesktop/systemd1", + "org.freedesktop.systemd1.Manager", + "Reload"); if (r < 0) - return log_error_errno(r, "Failed to create PTY forwarder: %m"); + return bus_log_create_error(r); - r = sd_event_loop(event); + r = sd_bus_message_set_allow_interactive_authorization(m, true); if (r < 0) - return log_error_errno(r, "Failed to run event loop: %m"); + return bus_log_create_error(r); - forward = pty_forward_free(forward); - - fputc('\n', stdout); - - log_info("Connection to container %s terminated.", args[1]); + r = sd_bus_call(bus, m, 0, &error, NULL); + if (r < 0) { + log_error("Failed to reload daemon: %s", bus_error_message(&error, -r)); + return r; + } - sd_event_get_exit_code(event, &ret); - return ret; + return 0; } -static void help(void) { +static int help(int argc, char *argv[], void *userdata) { + printf("%s [OPTIONS...] {COMMAND} ...\n\n" "Send control commands to or query the virtual machine and container\n" "registration manager.\n\n" @@ -1100,25 +1603,39 @@ static void help(void) { " -H --host=[USER@]HOST Operate on remote host\n" " -M --machine=CONTAINER Operate on local container\n" " -p --property=NAME Show only properties by this name\n" + " -q --quiet Suppress output\n" " -a --all Show all properties, including empty ones\n" " -l --full Do not ellipsize output\n" " --kill-who=WHO Who to send signal to\n" " -s --signal=SIGNAL Which signal to send\n" " --read-only Create read-only bind mount\n" " --mkdir Create directory before bind mounting, if missing\n\n" - "Commands:\n" + "Machine Commands:\n" " list List running VMs and containers\n" - " status NAME... Show VM/container status\n" + " status NAME... Show VM/container details\n" " show NAME... Show properties of one or more VMs/containers\n" " login NAME Get a login prompt on a container\n" + " start NAME... Start container as a service\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" - " kill NAME... Send signal to processes of a VM/container\n" " terminate NAME... Terminate one or more VMs/containers\n" - " bind NAME PATH [PATH] Bind mount a path from the host into a container\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", + " copy-from NAME PATH [PATH] Copy files from a container to the host\n" + " bind NAME PATH [PATH] Bind mount a path from the host into a container\n\n" + "Image Commands:\n" + " list-images Show available images\n" + " image-status NAME... Show image details\n" + " show-image NAME... Show properties of image\n" + " clone NAME NAME Clone an image\n" + " rename NAME NAME Rename an image\n" + " read-only NAME [BOOL] Mark or unmark image read-only\n" + " remove NAME... Remove an image\n", program_invocation_short_name); + + return 0; } static int parse_argv(int argc, char *argv[]) { @@ -1146,6 +1663,7 @@ static int parse_argv(int argc, char *argv[]) { { "machine", required_argument, NULL, 'M' }, { "read-only", no_argument, NULL, ARG_READ_ONLY }, { "mkdir", no_argument, NULL, ARG_MKDIR }, + { "quiet", no_argument, NULL, 'q' }, {} }; @@ -1154,13 +1672,12 @@ static int parse_argv(int argc, char *argv[]) { assert(argc >= 0); assert(argv); - while ((c = getopt_long(argc, argv, "hp:als:H:M:", options, NULL)) >= 0) + while ((c = getopt_long(argc, argv, "hp:als:H:M:q", options, NULL)) >= 0) switch (c) { case 'h': - help(); - return 0; + return help(0, NULL, NULL); case ARG_VERSION: puts(PACKAGE_STRING); @@ -1212,7 +1729,7 @@ static int parse_argv(int argc, char *argv[]) { break; case 'M': - arg_transport = BUS_TRANSPORT_CONTAINER; + arg_transport = BUS_TRANSPORT_MACHINE; arg_host = optarg; break; @@ -1224,6 +1741,10 @@ static int parse_argv(int argc, char *argv[]) { arg_mkdir = true; break; + case 'q': + arg_quiet = true; + break; + case '?': return -EINVAL; @@ -1234,89 +1755,35 @@ static int parse_argv(int argc, char *argv[]) { return 1; } -static int machinectl_main(sd_bus *bus, int argc, char *argv[]) { - - static const struct { - const char* verb; - const enum { - MORE, - LESS, - EQUAL - } argc_cmp; - const int argc; - int (* const dispatch)(sd_bus *bus, char **args, unsigned n); - } verbs[] = { - { "list", LESS, 1, list_machines }, - { "status", MORE, 2, show }, - { "show", MORE, 1, show }, - { "terminate", MORE, 2, terminate_machine }, - { "reboot", MORE, 2, reboot_machine }, - { "poweroff", MORE, 2, poweroff_machine }, - { "kill", MORE, 2, kill_machine }, - { "login", MORE, 2, login_machine }, - { "bind", MORE, 3, bind_mount }, - { "copy-to", MORE, 3, copy_files }, - { "copy-from", MORE, 3, copy_files }, +static int machinectl_main(int argc, char *argv[], sd_bus *bus) { + + static const Verb verbs[] = { + { "help", VERB_ANY, VERB_ANY, 0, help }, + { "list", VERB_ANY, 1, VERB_DEFAULT, list_machines }, + { "list-images", VERB_ANY, 1, 0, list_images }, + { "status", 2, VERB_ANY, 0, show_machine }, + { "image-status",2, VERB_ANY, 0, show_image }, + { "show", VERB_ANY, VERB_ANY, 0, show_machine }, + { "show-image", VERB_ANY, VERB_ANY, 0, show_image }, + { "terminate", 2, VERB_ANY, 0, terminate_machine }, + { "reboot", 2, VERB_ANY, 0, reboot_machine }, + { "poweroff", 2, VERB_ANY, 0, poweroff_machine }, + { "kill", 2, VERB_ANY, 0, kill_machine }, + { "login", 2, 2, 0, login_machine }, + { "bind", 3, 4, 0, bind_mount }, + { "copy-to", 3, 4, 0, copy_files }, + { "copy-from", 3, 4, 0, copy_files }, + { "remove", 2, VERB_ANY, 0, remove_image }, + { "rename", 3, 3, 0, rename_image }, + { "clone", 3, 3, 0, clone_image }, + { "read-only", 2, 3, 0, read_only_image }, + { "start", 2, VERB_ANY, 0, start_machine }, + { "enable", 2, VERB_ANY, 0, enable_machine }, + { "disable", 2, VERB_ANY, 0, enable_machine }, + {} }; - int left; - unsigned i; - - assert(argc >= 0); - assert(argv); - - left = argc - optind; - - if (left <= 0) - /* Special rule: no arguments means "list" */ - i = 0; - else { - if (streq(argv[optind], "help")) { - help(); - return 0; - } - - for (i = 0; i < ELEMENTSOF(verbs); i++) - if (streq(argv[optind], verbs[i].verb)) - break; - - if (i >= ELEMENTSOF(verbs)) { - log_error("Unknown operation %s", argv[optind]); - return -EINVAL; - } - } - - switch (verbs[i].argc_cmp) { - - case EQUAL: - if (left != verbs[i].argc) { - log_error("Invalid number of arguments."); - return -EINVAL; - } - - break; - - case MORE: - if (left < verbs[i].argc) { - log_error("Too few arguments."); - return -EINVAL; - } - - break; - - case LESS: - if (left > verbs[i].argc) { - log_error("Too many arguments."); - return -EINVAL; - } - - break; - - default: - assert_not_reached("Unknown comparison operator."); - } - - return verbs[i].dispatch(bus, argv + optind, left); + return dispatch_verb(argc, argv, verbs, bus); } int main(int argc, char*argv[]) { @@ -1337,7 +1804,7 @@ int main(int argc, char*argv[]) { goto finish; } - r = machinectl_main(bus, argc, argv); + r = machinectl_main(argc, argv, bus); finish: pager_close();