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Diffstat (limited to 'src/detect-virt/detect-virt.c')
| -rw-r--r-- | src/detect-virt/detect-virt.c | 186 |
1 files changed, 0 insertions, 186 deletions
diff --git a/src/detect-virt/detect-virt.c b/src/detect-virt/detect-virt.c deleted file mode 100644 index 4b8956f0ad..0000000000 --- a/src/detect-virt/detect-virt.c +++ /dev/null @@ -1,186 +0,0 @@ -/*** - This file is part of systemd. - - Copyright 2010 Lennart Poettering - - systemd is free software; you can redistribute it and/or modify it - under the terms of the GNU Lesser General Public License as published by - the Free Software Foundation; either version 2.1 of the License, or - (at your option) any later version. - - systemd is distributed in the hope that it will be useful, but - WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - Lesser General Public License for more details. - - You should have received a copy of the GNU Lesser General Public License - along with systemd; If not, see <http://www.gnu.org/licenses/>. -***/ - -#include <errno.h> -#include <getopt.h> -#include <stdbool.h> -#include <stdlib.h> - -#include "util.h" -#include "virt.h" - -static bool arg_quiet = false; -static enum { - ANY_VIRTUALIZATION, - ONLY_VM, - ONLY_CONTAINER, - ONLY_CHROOT, - ONLY_PRIVATE_USERS, -} arg_mode = ANY_VIRTUALIZATION; - -static void help(void) { - printf("%s [OPTIONS...]\n\n" - "Detect execution in a virtualized environment.\n\n" - " -h --help Show this help\n" - " --version Show package version\n" - " -c --container Only detect whether we are run in a container\n" - " -v --vm Only detect whether we are run in a VM\n" - " -r --chroot Detect whether we are run in a chroot() environment\n" - " --private-users Only detect whether we are running in a user namespace\n" - " -q --quiet Don't output anything, just set return value\n" - , program_invocation_short_name); -} - -static int parse_argv(int argc, char *argv[]) { - - enum { - ARG_VERSION = 0x100, - ARG_PRIVATE_USERS, - }; - - static const struct option options[] = { - { "help", no_argument, NULL, 'h' }, - { "version", no_argument, NULL, ARG_VERSION }, - { "container", no_argument, NULL, 'c' }, - { "vm", no_argument, NULL, 'v' }, - { "chroot", no_argument, NULL, 'r' }, - { "private-users", no_argument, NULL, ARG_PRIVATE_USERS }, - { "quiet", no_argument, NULL, 'q' }, - {} - }; - - int c; - - assert(argc >= 0); - assert(argv); - - while ((c = getopt_long(argc, argv, "hqcvr", options, NULL)) >= 0) - - switch (c) { - - case 'h': - help(); - return 0; - - case ARG_VERSION: - return version(); - - case 'q': - arg_quiet = true; - break; - - case 'c': - arg_mode = ONLY_CONTAINER; - break; - - case ARG_PRIVATE_USERS: - arg_mode = ONLY_PRIVATE_USERS; - break; - - case 'v': - arg_mode = ONLY_VM; - break; - - case 'r': - arg_mode = ONLY_CHROOT; - break; - - case '?': - return -EINVAL; - - default: - assert_not_reached("Unhandled option"); - } - - if (optind < argc) { - log_error("%s takes no arguments.", program_invocation_short_name); - return -EINVAL; - } - - return 1; -} - -int main(int argc, char *argv[]) { - int r; - - /* This is mostly intended to be used for scripts which want - * to detect whether we are being run in a virtualized - * environment or not */ - - log_parse_environment(); - log_open(); - - r = parse_argv(argc, argv); - if (r <= 0) - return r < 0 ? EXIT_FAILURE : EXIT_SUCCESS; - - switch (arg_mode) { - - case ONLY_VM: - r = detect_vm(); - if (r < 0) { - log_error_errno(r, "Failed to check for VM: %m"); - return EXIT_FAILURE; - } - - break; - - case ONLY_CONTAINER: - r = detect_container(); - if (r < 0) { - log_error_errno(r, "Failed to check for container: %m"); - return EXIT_FAILURE; - } - - break; - - case ONLY_CHROOT: - r = running_in_chroot(); - if (r < 0) { - log_error_errno(r, "Failed to check for chroot() environment: %m"); - return EXIT_FAILURE; - } - - return r ? EXIT_SUCCESS : EXIT_FAILURE; - - case ONLY_PRIVATE_USERS: - r = running_in_userns(); - if (r < 0) { - log_error_errno(r, "Failed to check for user namespace: %m"); - return EXIT_FAILURE; - } - - return r ? EXIT_SUCCESS : EXIT_FAILURE; - - case ANY_VIRTUALIZATION: - default: - r = detect_virtualization(); - if (r < 0) { - log_error_errno(r, "Failed to check for virtualization: %m"); - return EXIT_FAILURE; - } - - break; - } - - if (!arg_quiet) - puts(virtualization_to_string(r)); - - return r != VIRTUALIZATION_NONE ? EXIT_SUCCESS : EXIT_FAILURE; -} |