5828e9d7f59d4682a58585195d67153abdabacfcvboxsync

5828e9d7f59d4682a58585195d67153abdabacfcvboxsync

5828e9d7f59d4682a58585195d67153abdabacfcvboxsync#include <stdio.h>

5828e9d7f59d4682a58585195d67153abdabacfcvboxsync#include <unistd.h>

5828e9d7f59d4682a58585195d67153abdabacfcvboxsync#include <errno.h>

5828e9d7f59d4682a58585195d67153abdabacfcvboxsync#include <getopt.h>

5828e9d7f59d4682a58585195d67153abdabacfcvboxsync#include <string.h>

5828e9d7f59d4682a58585195d67153abdabacfcvboxsync

5828e9d7f59d4682a58585195d67153abdabacfcvboxsync#include "cgroup-show.h"

5828e9d7f59d4682a58585195d67153abdabacfcvboxsync#include "cgroup-util.h"

5828e9d7f59d4682a58585195d67153abdabacfcvboxsync#include "log.h"

0b7c1a3988178ff34dda0b27254dda793269c7eavboxsync#include "path-util.h"

5828e9d7f59d4682a58585195d67153abdabacfcvboxsync#include "util.h"

5828e9d7f59d4682a58585195d67153abdabacfcvboxsync#include "pager.h"

6b2a670063cd56a66a3404733df293bce35c4e67vboxsync#include "build.h"

6b2a670063cd56a66a3404733df293bce35c4e67vboxsync#include "output-mode.h"

5828e9d7f59d4682a58585195d67153abdabacfcvboxsync#include "fileio.h"

5828e9d7f59d4682a58585195d67153abdabacfcvboxsync#include "sd-bus.h"

5828e9d7f59d4682a58585195d67153abdabacfcvboxsync#include "bus-util.h"

5828e9d7f59d4682a58585195d67153abdabacfcvboxsync#include "bus-error.h"

5828e9d7f59d4682a58585195d67153abdabacfcvboxsync#include "unit-name.h"

5828e9d7f59d4682a58585195d67153abdabacfcvboxsync

5828e9d7f59d4682a58585195d67153abdabacfcvboxsyncstatic bool arg_no_pager = false;

5828e9d7f59d4682a58585195d67153abdabacfcvboxsyncstatic bool arg_kernel_threads = false;

5828e9d7f59d4682a58585195d67153abdabacfcvboxsyncstatic bool arg_all = false;

5828e9d7f59d4682a58585195d67153abdabacfcvboxsyncstatic int arg_full = -1;

5828e9d7f59d4682a58585195d67153abdabacfcvboxsyncstatic char* arg_machine = NULL;

5828e9d7f59d4682a58585195d67153abdabacfcvboxsync

5828e9d7f59d4682a58585195d67153abdabacfcvboxsyncstatic void help(void) {

5828e9d7f59d4682a58585195d67153abdabacfcvboxsync printf("%s [OPTIONS...] [CGROUP...]\n\n"

5828e9d7f59d4682a58585195d67153abdabacfcvboxsync "Recursively show control group contents.\n\n"

5828e9d7f59d4682a58585195d67153abdabacfcvboxsync " -h --help Show this help\n"

5828e9d7f59d4682a58585195d67153abdabacfcvboxsync " --version Show package version\n"

5828e9d7f59d4682a58585195d67153abdabacfcvboxsync " --no-pager Do not pipe output into a pager\n"

5828e9d7f59d4682a58585195d67153abdabacfcvboxsync " -a --all Show all groups, including empty\n"

5828e9d7f59d4682a58585195d67153abdabacfcvboxsync " -l --full Do not ellipsize output\n"

5828e9d7f59d4682a58585195d67153abdabacfcvboxsync " -k Include kernel threads in output\n"

5828e9d7f59d4682a58585195d67153abdabacfcvboxsync " -M --machine= Show container\n"

5828e9d7f59d4682a58585195d67153abdabacfcvboxsync , program_invocation_short_name);

5828e9d7f59d4682a58585195d67153abdabacfcvboxsync}

5828e9d7f59d4682a58585195d67153abdabacfcvboxsync

5828e9d7f59d4682a58585195d67153abdabacfcvboxsyncstatic int parse_argv(int argc, char *argv[]) {

5828e9d7f59d4682a58585195d67153abdabacfcvboxsync

5828e9d7f59d4682a58585195d67153abdabacfcvboxsync enum {

5828e9d7f59d4682a58585195d67153abdabacfcvboxsync ARG_NO_PAGER = 0x100,

5828e9d7f59d4682a58585195d67153abdabacfcvboxsync ARG_VERSION,

5828e9d7f59d4682a58585195d67153abdabacfcvboxsync };

5828e9d7f59d4682a58585195d67153abdabacfcvboxsync

5828e9d7f59d4682a58585195d67153abdabacfcvboxsync static const struct option options[] = {

5828e9d7f59d4682a58585195d67153abdabacfcvboxsync { "help", no_argument, NULL, 'h' },

5828e9d7f59d4682a58585195d67153abdabacfcvboxsync { "version", no_argument, NULL, ARG_VERSION },

5828e9d7f59d4682a58585195d67153abdabacfcvboxsync { "no-pager", no_argument, NULL, ARG_NO_PAGER },

5828e9d7f59d4682a58585195d67153abdabacfcvboxsync { "all", no_argument, NULL, 'a' },

5828e9d7f59d4682a58585195d67153abdabacfcvboxsync { "full", no_argument, NULL, 'l' },

5828e9d7f59d4682a58585195d67153abdabacfcvboxsync { "machine", required_argument, NULL, 'M' },

5828e9d7f59d4682a58585195d67153abdabacfcvboxsync {}

5828e9d7f59d4682a58585195d67153abdabacfcvboxsync };

5828e9d7f59d4682a58585195d67153abdabacfcvboxsync

5828e9d7f59d4682a58585195d67153abdabacfcvboxsync int c;

5828e9d7f59d4682a58585195d67153abdabacfcvboxsync

5828e9d7f59d4682a58585195d67153abdabacfcvboxsync assert(argc >= 1);

5828e9d7f59d4682a58585195d67153abdabacfcvboxsync assert(argv);

5828e9d7f59d4682a58585195d67153abdabacfcvboxsync

5828e9d7f59d4682a58585195d67153abdabacfcvboxsync while ((c = getopt_long(argc, argv, "hkalM:", options, NULL)) >= 0)

5828e9d7f59d4682a58585195d67153abdabacfcvboxsync

5828e9d7f59d4682a58585195d67153abdabacfcvboxsync switch (c) {

5828e9d7f59d4682a58585195d67153abdabacfcvboxsync

5828e9d7f59d4682a58585195d67153abdabacfcvboxsync case 'h':

5828e9d7f59d4682a58585195d67153abdabacfcvboxsync help();

5828e9d7f59d4682a58585195d67153abdabacfcvboxsync return 0;

29b9a88f882c60887f4908f00db4461432610658vboxsync

5828e9d7f59d4682a58585195d67153abdabacfcvboxsync case ARG_VERSION:

5828e9d7f59d4682a58585195d67153abdabacfcvboxsync puts(PACKAGE_STRING);

5828e9d7f59d4682a58585195d67153abdabacfcvboxsync puts(SYSTEMD_FEATURES);

5828e9d7f59d4682a58585195d67153abdabacfcvboxsync return 0;

5828e9d7f59d4682a58585195d67153abdabacfcvboxsync

5828e9d7f59d4682a58585195d67153abdabacfcvboxsync case ARG_NO_PAGER:

5828e9d7f59d4682a58585195d67153abdabacfcvboxsync arg_no_pager = true;

5828e9d7f59d4682a58585195d67153abdabacfcvboxsync break;

5828e9d7f59d4682a58585195d67153abdabacfcvboxsync

5828e9d7f59d4682a58585195d67153abdabacfcvboxsync case 'a':

5828e9d7f59d4682a58585195d67153abdabacfcvboxsync arg_all = true;

e99bd87e9b40f21c8fa9e61a4e8f2fe80fe2be06vboxsync break;

e99bd87e9b40f21c8fa9e61a4e8f2fe80fe2be06vboxsync

bf250cf7115e453cb01696179244d914b9d85f2dvboxsync case 'l':

5828e9d7f59d4682a58585195d67153abdabacfcvboxsync arg_full = true;

5828e9d7f59d4682a58585195d67153abdabacfcvboxsync break;

5828e9d7f59d4682a58585195d67153abdabacfcvboxsync

5828e9d7f59d4682a58585195d67153abdabacfcvboxsync case 'k':

5828e9d7f59d4682a58585195d67153abdabacfcvboxsync arg_kernel_threads = true;

5828e9d7f59d4682a58585195d67153abdabacfcvboxsync break;

5828e9d7f59d4682a58585195d67153abdabacfcvboxsync

5828e9d7f59d4682a58585195d67153abdabacfcvboxsync case 'M':

5828e9d7f59d4682a58585195d67153abdabacfcvboxsync arg_machine = optarg;

5828e9d7f59d4682a58585195d67153abdabacfcvboxsync break;

5828e9d7f59d4682a58585195d67153abdabacfcvboxsync

5828e9d7f59d4682a58585195d67153abdabacfcvboxsync case '?':

5828e9d7f59d4682a58585195d67153abdabacfcvboxsync return -EINVAL;

5828e9d7f59d4682a58585195d67153abdabacfcvboxsync

5828e9d7f59d4682a58585195d67153abdabacfcvboxsync default:

5828e9d7f59d4682a58585195d67153abdabacfcvboxsync assert_not_reached("Unhandled option");

5828e9d7f59d4682a58585195d67153abdabacfcvboxsync }

5828e9d7f59d4682a58585195d67153abdabacfcvboxsync

5828e9d7f59d4682a58585195d67153abdabacfcvboxsync return 1;

5828e9d7f59d4682a58585195d67153abdabacfcvboxsync}

5828e9d7f59d4682a58585195d67153abdabacfcvboxsync

5828e9d7f59d4682a58585195d67153abdabacfcvboxsyncstatic int get_cgroup_root(char **ret) {

5828e9d7f59d4682a58585195d67153abdabacfcvboxsync _cleanup_bus_error_free_ sd_bus_error error = SD_BUS_ERROR_NULL;

5828e9d7f59d4682a58585195d67153abdabacfcvboxsync _cleanup_bus_flush_close_unref_ sd_bus *bus = NULL;

5828e9d7f59d4682a58585195d67153abdabacfcvboxsync _cleanup_free_ char *unit = NULL, *path = NULL;

5828e9d7f59d4682a58585195d67153abdabacfcvboxsync const char *m;

5828e9d7f59d4682a58585195d67153abdabacfcvboxsync int r;

5828e9d7f59d4682a58585195d67153abdabacfcvboxsync

5828e9d7f59d4682a58585195d67153abdabacfcvboxsync if (!arg_machine) {

5828e9d7f59d4682a58585195d67153abdabacfcvboxsync r = cg_get_root_path(ret);

5828e9d7f59d4682a58585195d67153abdabacfcvboxsync if (r < 0)

5828e9d7f59d4682a58585195d67153abdabacfcvboxsync return log_error_errno(r, "Failed to get root control group path: %m");

5828e9d7f59d4682a58585195d67153abdabacfcvboxsync

5828e9d7f59d4682a58585195d67153abdabacfcvboxsync return 0;

5828e9d7f59d4682a58585195d67153abdabacfcvboxsync }

5828e9d7f59d4682a58585195d67153abdabacfcvboxsync

5828e9d7f59d4682a58585195d67153abdabacfcvboxsync m = strjoina("/run/systemd/machines/", arg_machine);

5828e9d7f59d4682a58585195d67153abdabacfcvboxsync r = parse_env_file(m, NEWLINE, "SCOPE", &unit, NULL);

5828e9d7f59d4682a58585195d67153abdabacfcvboxsync if (r < 0)

5828e9d7f59d4682a58585195d67153abdabacfcvboxsync return log_error_errno(r, "Failed to load machine data: %m");

5828e9d7f59d4682a58585195d67153abdabacfcvboxsync

5828e9d7f59d4682a58585195d67153abdabacfcvboxsync path = unit_dbus_path_from_name(unit);

5828e9d7f59d4682a58585195d67153abdabacfcvboxsync if (!path)

5828e9d7f59d4682a58585195d67153abdabacfcvboxsync return log_oom();

5828e9d7f59d4682a58585195d67153abdabacfcvboxsync

5828e9d7f59d4682a58585195d67153abdabacfcvboxsync r = bus_open_transport(BUS_TRANSPORT_LOCAL, NULL, false, &bus);

5828e9d7f59d4682a58585195d67153abdabacfcvboxsync if (r < 0)

5828e9d7f59d4682a58585195d67153abdabacfcvboxsync return log_error_errno(r, "Failed to create bus connection: %m");

5828e9d7f59d4682a58585195d67153abdabacfcvboxsync

5828e9d7f59d4682a58585195d67153abdabacfcvboxsync r = sd_bus_get_property_string(

5828e9d7f59d4682a58585195d67153abdabacfcvboxsync bus,

5828e9d7f59d4682a58585195d67153abdabacfcvboxsync "org.freedesktop.systemd1",

5828e9d7f59d4682a58585195d67153abdabacfcvboxsync path,

5828e9d7f59d4682a58585195d67153abdabacfcvboxsync unit_dbus_interface_from_name(unit),

5828e9d7f59d4682a58585195d67153abdabacfcvboxsync "ControlGroup",

5828e9d7f59d4682a58585195d67153abdabacfcvboxsync &error,

5828e9d7f59d4682a58585195d67153abdabacfcvboxsync ret);

5828e9d7f59d4682a58585195d67153abdabacfcvboxsync if (r < 0)

5828e9d7f59d4682a58585195d67153abdabacfcvboxsync return log_error_errno(r, "Failed to query unit control group path: %s", bus_error_message(&error, r));

5828e9d7f59d4682a58585195d67153abdabacfcvboxsync

5828e9d7f59d4682a58585195d67153abdabacfcvboxsync return 0;

5828e9d7f59d4682a58585195d67153abdabacfcvboxsync}

5828e9d7f59d4682a58585195d67153abdabacfcvboxsync

5828e9d7f59d4682a58585195d67153abdabacfcvboxsyncint main(int argc, char *argv[]) {

5828e9d7f59d4682a58585195d67153abdabacfcvboxsync int r, output_flags;

5828e9d7f59d4682a58585195d67153abdabacfcvboxsync

5828e9d7f59d4682a58585195d67153abdabacfcvboxsync log_parse_environment();

5828e9d7f59d4682a58585195d67153abdabacfcvboxsync log_open();

5828e9d7f59d4682a58585195d67153abdabacfcvboxsync

5828e9d7f59d4682a58585195d67153abdabacfcvboxsync r = parse_argv(argc, argv);

5828e9d7f59d4682a58585195d67153abdabacfcvboxsync if (r <= 0)

5828e9d7f59d4682a58585195d67153abdabacfcvboxsync goto finish;

5828e9d7f59d4682a58585195d67153abdabacfcvboxsync

5828e9d7f59d4682a58585195d67153abdabacfcvboxsync if (!arg_no_pager) {

5828e9d7f59d4682a58585195d67153abdabacfcvboxsync r = pager_open(false);

5828e9d7f59d4682a58585195d67153abdabacfcvboxsync if (r > 0 && arg_full < 0)

5828e9d7f59d4682a58585195d67153abdabacfcvboxsync arg_full = true;

5828e9d7f59d4682a58585195d67153abdabacfcvboxsync }

5828e9d7f59d4682a58585195d67153abdabacfcvboxsync

5828e9d7f59d4682a58585195d67153abdabacfcvboxsync output_flags =

5828e9d7f59d4682a58585195d67153abdabacfcvboxsync arg_all * OUTPUT_SHOW_ALL |

5828e9d7f59d4682a58585195d67153abdabacfcvboxsync (arg_full > 0) * OUTPUT_FULL_WIDTH;

5828e9d7f59d4682a58585195d67153abdabacfcvboxsync

5828e9d7f59d4682a58585195d67153abdabacfcvboxsync if (optind < argc) {

5828e9d7f59d4682a58585195d67153abdabacfcvboxsync _cleanup_free_ char *root = NULL;

5828e9d7f59d4682a58585195d67153abdabacfcvboxsync int i;

5828e9d7f59d4682a58585195d67153abdabacfcvboxsync

r = get_cgroup_root(&root);

if (r < 0)

goto finish;

for (i = optind; i < argc; i++) {

int q;

if (path_startswith(argv[i], "/sys/fs/cgroup")) {

printf("Directory %s:\n", argv[i]);

fflush(stdout);

q = show_cgroup_by_path(argv[i], NULL, 0, arg_kernel_threads, output_flags);

} else {

_cleanup_free_ char *c = NULL, *p = NULL, *j = NULL;

const char *controller, *path;

r = cg_split_spec(argv[i], &c, &p);

if (r < 0) {

log_error_errno(r, "Failed to split argument %s: %m", argv[i]);

goto finish;

}

controller = c ?: SYSTEMD_CGROUP_CONTROLLER;

if (p) {

j = strjoin(root, "/", p, NULL);

if (!j) {

r = log_oom();

goto finish;

}

path_kill_slashes(j);

path = j;

} else

path = root;

printf("Controller %s; control group %s:\n", controller, path);

fflush(stdout);

q = show_cgroup(controller, path, NULL, 0, arg_kernel_threads, output_flags);

}

if (q < 0)

r = q;

}

} else {

bool done = false;

if (!arg_machine) {

_cleanup_free_ char *cwd = NULL;

cwd = get_current_dir_name();

if (!cwd) {

r = log_error_errno(errno, "Cannot determine current working directory: %m");

goto finish;

}

if (path_startswith(cwd, "/sys/fs/cgroup")) {

printf("Working directory %s:\n", cwd);

fflush(stdout);

r = show_cgroup_by_path(cwd, NULL, 0, arg_kernel_threads, output_flags);

done = true;

}

}

if (!done) {

_cleanup_free_ char *root = NULL;

r = get_cgroup_root(&root);

if (r < 0)

goto finish;

printf("Control group %s:\n", isempty(root) ? "/" : root);

fflush(stdout);

r = show_cgroup(SYSTEMD_CGROUP_CONTROLLER, root, NULL, 0, arg_kernel_threads, output_flags);

}

}

if (r < 0)

log_error_errno(r, "Failed to list cgroup tree: %m");

finish:

pager_close();

return r < 0 ? EXIT_FAILURE : EXIT_SUCCESS;

}