diff options
Diffstat (limited to 'src/machine/machinectl.c')
| -rw-r--r-- | src/machine/machinectl.c | 99 |
1 files changed, 97 insertions, 2 deletions
diff --git a/src/machine/machinectl.c b/src/machine/machinectl.c index a62ffe30ac..d2d3d1600f 100644 --- a/src/machine/machinectl.c +++ b/src/machine/machinectl.c @@ -120,6 +120,98 @@ 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; +} 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(sd_bus *bus, char **args, unsigned n) { + + _cleanup_bus_error_free_ sd_bus_error error = SD_BUS_ERROR_NULL; + size_t max_name = strlen("NAME"), max_type = strlen("TYPE"); + _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; + int read_only; + int r; + + 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, "(ssbo)"); + if (r < 0) + return bus_log_parse_error(r); + + while ((r = sd_bus_message_read(reply, "(ssbo)", &name, &type, &read_only, &object)) > 0) { + + 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; + + if (strlen(name) > max_name) + max_name = strlen(name); + + if (strlen(type) > max_type) + max_type = strlen(type); + + 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\n", (int) max_name, "NAME", (int) max_type, "TYPE", "RO"); + + for (j = 0; j < n_images; j++) { + printf("%-*s %-*s %-3s\n", + (int) max_name, images[j].name, + (int) max_type, images[j].type, + yes_no(images[j].read_only)); + } + + 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; @@ -1106,7 +1198,7 @@ static void help(void) { " -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" " show NAME... Show properties of one or more VMs/containers\n" @@ -1117,7 +1209,9 @@ static void help(void) { " terminate NAME... Terminate one or more VMs/containers\n" " bind NAME PATH [PATH] Bind mount a path from the host into a 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\n" + "Image commands:\n" + " list-images Show available images\n", program_invocation_short_name); } @@ -1247,6 +1341,7 @@ static int machinectl_main(sd_bus *bus, int argc, char *argv[]) { int (* const dispatch)(sd_bus *bus, char **args, unsigned n); } verbs[] = { { "list", LESS, 1, list_machines }, + { "list-images", LESS, 1, list_images }, { "status", MORE, 2, show }, { "show", MORE, 1, show }, { "terminate", MORE, 2, terminate_machine }, |