/* SPDX-License-Identifier: LGPL-2.1-or-later */ #include #include "build.h" #include "logs-show.h" #include "main-func.h" #include "networkctl.h" #include "networkctl-address-label.h" #include "networkctl-config-file.h" #include "networkctl-list.h" #include "networkctl-lldp.h" #include "networkctl-misc.h" #include "networkctl-status-link.h" #include "networkctl-util.h" #include "parse-argument.h" #include "parse-util.h" #include "path-util.h" #include "pretty-print.h" #include "verbs.h" PagerFlags arg_pager_flags = 0; bool arg_legend = true; bool arg_no_reload = false; bool arg_all = false; bool arg_stats = false; bool arg_full = false; bool arg_runtime = false; bool arg_stdin = false; unsigned arg_lines = 10; char *arg_drop_in = NULL; sd_json_format_flags_t arg_json_format_flags = SD_JSON_FORMAT_OFF; bool arg_ask_password = true; STATIC_DESTRUCTOR_REGISTER(arg_drop_in, freep); static int help(void) { _cleanup_free_ char *link = NULL; int r; r = terminal_urlify_man("networkctl", "1", &link); if (r < 0) return log_oom(); printf("%s [OPTIONS...] COMMAND\n\n" "%sQuery and control the networking subsystem.%s\n" "\nCommands:\n" " list [PATTERN...] List links\n" " status [PATTERN...] Show link status\n" " lldp [PATTERN...] Show LLDP neighbors\n" " label Show current address label entries in the kernel\n" " delete DEVICES... Delete virtual netdevs\n" " up DEVICES... Bring devices up\n" " down DEVICES... Bring devices down\n" " renew DEVICES... Renew dynamic configurations\n" " forcerenew DEVICES... Trigger DHCP reconfiguration of all connected clients\n" " reconfigure DEVICES... Reconfigure interfaces\n" " reload Reload .network and .netdev files\n" " edit FILES|DEVICES... Edit network configuration files\n" " cat [FILES|DEVICES...] Show network configuration files\n" " mask FILES... Mask network configuration files\n" " unmask FILES... Unmask network configuration files\n" " persistent-storage BOOL\n" " Notify systemd-networkd if persistent storage is ready\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 prompt for password\n" " -a --all Show status for all links\n" " -s --stats Show detailed link statistics\n" " -l --full Do not ellipsize output\n" " -n --lines=INTEGER Number of journal entries to show\n" " --json=pretty|short|off\n" " Generate JSON output\n" " --no-reload Do not reload systemd-networkd or systemd-udevd\n" " after editing network config\n" " --drop-in=NAME Edit specified drop-in instead of main config file\n" " --runtime Edit runtime config files\n" " --stdin Read new contents of edited file from stdin\n" "\nSee the %s for details.\n", program_invocation_short_name, 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_NO_ASK_PASSWORD, ARG_JSON, ARG_NO_RELOAD, ARG_DROP_IN, ARG_RUNTIME, ARG_STDIN, }; static const struct option options[] = { { "help", no_argument, NULL, 'h' }, { "version", no_argument, NULL, ARG_VERSION }, { "no-pager", no_argument, NULL, ARG_NO_PAGER }, { "no-legend", no_argument, NULL, ARG_NO_LEGEND }, { "no-ask-password", no_argument, NULL, ARG_NO_ASK_PASSWORD }, { "all", no_argument, NULL, 'a' }, { "stats", no_argument, NULL, 's' }, { "full", no_argument, NULL, 'l' }, { "lines", required_argument, NULL, 'n' }, { "json", required_argument, NULL, ARG_JSON }, { "no-reload", no_argument, NULL, ARG_NO_RELOAD }, { "drop-in", required_argument, NULL, ARG_DROP_IN }, { "runtime", no_argument, NULL, ARG_RUNTIME }, { "stdin", no_argument, NULL, ARG_STDIN }, {} }; int c, r; assert(argc >= 0); assert(argv); while ((c = getopt_long(argc, argv, "hasln:", options, NULL)) >= 0) { switch (c) { case 'h': return help(); case ARG_VERSION: return version(); case ARG_NO_PAGER: arg_pager_flags |= PAGER_DISABLE; break; case ARG_NO_LEGEND: arg_legend = false; break; case ARG_NO_RELOAD: arg_no_reload = true; break; case ARG_NO_ASK_PASSWORD: arg_ask_password = false; break; case ARG_RUNTIME: arg_runtime = true; break; case ARG_STDIN: arg_stdin = true; break; case ARG_DROP_IN: if (isempty(optarg)) return log_error_errno(SYNTHETIC_ERRNO(EINVAL), "Empty drop-in file name."); if (!endswith(optarg, ".conf")) { char *conf; conf = strjoin(optarg, ".conf"); if (!conf) return log_oom(); free_and_replace(arg_drop_in, conf); } else { r = free_and_strdup(&arg_drop_in, optarg); if (r < 0) return log_oom(); } if (!filename_is_valid(arg_drop_in)) return log_error_errno(SYNTHETIC_ERRNO(EINVAL), "Invalid drop-in file name '%s'.", arg_drop_in); break; case 'a': arg_all = true; break; case 's': arg_stats = 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 ARG_JSON: r = parse_json_argument(optarg, &arg_json_format_flags); if (r <= 0) return r; break; case '?': return -EINVAL; default: assert_not_reached(); } } return 1; } static int networkctl_main(int argc, char *argv[]) { static const Verb verbs[] = { { "list", VERB_ANY, VERB_ANY, VERB_DEFAULT|VERB_ONLINE_ONLY, list_links }, { "status", VERB_ANY, VERB_ANY, VERB_ONLINE_ONLY, link_status }, { "lldp", VERB_ANY, VERB_ANY, 0, link_lldp_status }, { "label", 1, 1, 0, list_address_labels }, { "delete", 2, VERB_ANY, 0, link_delete }, { "up", 2, VERB_ANY, 0, link_up_down }, { "down", 2, VERB_ANY, 0, link_up_down }, { "renew", 2, VERB_ANY, VERB_ONLINE_ONLY, link_renew }, { "forcerenew", 2, VERB_ANY, VERB_ONLINE_ONLY, link_force_renew }, { "reconfigure", 2, VERB_ANY, VERB_ONLINE_ONLY, verb_reconfigure }, { "reload", 1, 1, VERB_ONLINE_ONLY, verb_reload }, { "edit", 2, VERB_ANY, 0, verb_edit }, { "cat", 1, VERB_ANY, 0, verb_cat }, { "mask", 2, VERB_ANY, 0, verb_mask }, { "unmask", 2, VERB_ANY, 0, verb_unmask }, { "persistent-storage", 2, 2, 0, verb_persistent_storage }, {} }; return dispatch_verb(argc, argv, verbs, NULL); } static int run(int argc, char* argv[]) { int r; log_setup(); r = parse_argv(argc, argv); if (r <= 0) return r; journal_browse_prepare(); return networkctl_main(argc, argv); } DEFINE_MAIN_FUNCTION(run);