src/network/networkctl.c

	networkctl.c revision df3fb561b2df486a495a5f0bcc83168bd1860533
ee8c45689526ca973407cbb77bce7b96a062c40bLennart Poettering/*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/
ee8c45689526ca973407cbb77bce7b96a062c40bLennart Poettering
ee8c45689526ca973407cbb77bce7b96a062c40bLennart Poettering/***
ee8c45689526ca973407cbb77bce7b96a062c40bLennart Poettering  This file is part of systemd.
ee8c45689526ca973407cbb77bce7b96a062c40bLennart Poettering
ee8c45689526ca973407cbb77bce7b96a062c40bLennart Poettering  Copyright 2014 Lennart Poettering
ee8c45689526ca973407cbb77bce7b96a062c40bLennart Poettering
ee8c45689526ca973407cbb77bce7b96a062c40bLennart Poettering  systemd is free software; you can redistribute it and/or modify it
ee8c45689526ca973407cbb77bce7b96a062c40bLennart Poettering  under the terms of the GNU Lesser General Public License as published by
ee8c45689526ca973407cbb77bce7b96a062c40bLennart Poettering  the Free Software Foundation; either version 2.1 of the License, or
ee8c45689526ca973407cbb77bce7b96a062c40bLennart Poettering  (at your option) any later version.
ee8c45689526ca973407cbb77bce7b96a062c40bLennart Poettering
ee8c45689526ca973407cbb77bce7b96a062c40bLennart Poettering  systemd is distributed in the hope that it will be useful, but
ee8c45689526ca973407cbb77bce7b96a062c40bLennart Poettering  WITHOUT ANY WARRANTY; without even the implied warranty of
ee8c45689526ca973407cbb77bce7b96a062c40bLennart Poettering  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
ee8c45689526ca973407cbb77bce7b96a062c40bLennart Poettering  Lesser General Public License for more details.
ee8c45689526ca973407cbb77bce7b96a062c40bLennart Poettering
ee8c45689526ca973407cbb77bce7b96a062c40bLennart Poettering  You should have received a copy of the GNU Lesser General Public License
ee8c45689526ca973407cbb77bce7b96a062c40bLennart Poettering  along with systemd; If not, see <http://www.gnu.org/licenses/>.
ee8c45689526ca973407cbb77bce7b96a062c40bLennart Poettering***/
ee8c45689526ca973407cbb77bce7b96a062c40bLennart Poettering
ee8c45689526ca973407cbb77bce7b96a062c40bLennart Poettering#include <stdbool.h>
ee8c45689526ca973407cbb77bce7b96a062c40bLennart Poettering#include <getopt.h>
ee8c45689526ca973407cbb77bce7b96a062c40bLennart Poettering
ee8c45689526ca973407cbb77bce7b96a062c40bLennart Poettering#include "sd-network.h"
ee8c45689526ca973407cbb77bce7b96a062c40bLennart Poettering#include "sd-rtnl.h"
ee8c45689526ca973407cbb77bce7b96a062c40bLennart Poettering#include "libudev.h"
ee8c45689526ca973407cbb77bce7b96a062c40bLennart Poettering
ee8c45689526ca973407cbb77bce7b96a062c40bLennart Poettering#include "build.h"
ee8c45689526ca973407cbb77bce7b96a062c40bLennart Poettering#include "util.h"
ee8c45689526ca973407cbb77bce7b96a062c40bLennart Poettering#include "pager.h"
ee8c45689526ca973407cbb77bce7b96a062c40bLennart Poettering#include "rtnl-util.h"
ee8c45689526ca973407cbb77bce7b96a062c40bLennart Poettering#include "udev-util.h"
ee8c45689526ca973407cbb77bce7b96a062c40bLennart Poettering#include "arphrd-list.h"
ee8c45689526ca973407cbb77bce7b96a062c40bLennart Poettering#include "local-addresses.h"
ee8c45689526ca973407cbb77bce7b96a062c40bLennart Poettering
ee8c45689526ca973407cbb77bce7b96a062c40bLennart Poetteringstatic bool arg_no_pager = false;
ee8c45689526ca973407cbb77bce7b96a062c40bLennart Poetteringstatic bool arg_legend = true;
9085f64a6694f2928c79fcce365edb1dca6937d4Lennart Poetteringstatic bool arg_all = false;
ee8c45689526ca973407cbb77bce7b96a062c40bLennart Poettering
ee8c45689526ca973407cbb77bce7b96a062c40bLennart Poetteringstatic void pager_open_if_enabled(void) {
ee8c45689526ca973407cbb77bce7b96a062c40bLennart Poettering
ee8c45689526ca973407cbb77bce7b96a062c40bLennart Poettering        if (arg_no_pager)
ee8c45689526ca973407cbb77bce7b96a062c40bLennart Poettering                return;
ee8c45689526ca973407cbb77bce7b96a062c40bLennart Poettering
ee8c45689526ca973407cbb77bce7b96a062c40bLennart Poettering        pager_open(false);
ee8c45689526ca973407cbb77bce7b96a062c40bLennart Poettering}
ee8c45689526ca973407cbb77bce7b96a062c40bLennart Poettering
ee8c45689526ca973407cbb77bce7b96a062c40bLennart Poetteringstatic int link_get_type_string(int iftype, struct udev_device *d, char **ret) {
ee8c45689526ca973407cbb77bce7b96a062c40bLennart Poettering        const char *t;
ee8c45689526ca973407cbb77bce7b96a062c40bLennart Poettering        char *p;
ee8c45689526ca973407cbb77bce7b96a062c40bLennart Poettering
ee8c45689526ca973407cbb77bce7b96a062c40bLennart Poettering        if (iftype == ARPHRD_ETHER && d) {
ee8c45689526ca973407cbb77bce7b96a062c40bLennart Poettering                const char *devtype, *id = NULL;
ee8c45689526ca973407cbb77bce7b96a062c40bLennart Poettering                /* WLANs have iftype ARPHRD_ETHER, but we want
ee8c45689526ca973407cbb77bce7b96a062c40bLennart Poettering                 * to show a more useful type string for
ee8c45689526ca973407cbb77bce7b96a062c40bLennart Poettering                 * them */
ee8c45689526ca973407cbb77bce7b96a062c40bLennart Poettering
ee8c45689526ca973407cbb77bce7b96a062c40bLennart Poettering                devtype = udev_device_get_devtype(d);
ee8c45689526ca973407cbb77bce7b96a062c40bLennart Poettering                if (streq_ptr(devtype, "wlan"))
ee8c45689526ca973407cbb77bce7b96a062c40bLennart Poettering                        id = "wlan";
ee8c45689526ca973407cbb77bce7b96a062c40bLennart Poettering                else if (streq_ptr(devtype, "wwan"))
ee8c45689526ca973407cbb77bce7b96a062c40bLennart Poettering                        id = "wwan";
ee8c45689526ca973407cbb77bce7b96a062c40bLennart Poettering
ee8c45689526ca973407cbb77bce7b96a062c40bLennart Poettering                if (id) {
ee8c45689526ca973407cbb77bce7b96a062c40bLennart Poettering                        p = strdup(id);
ee8c45689526ca973407cbb77bce7b96a062c40bLennart Poettering                        if (!p)
ee8c45689526ca973407cbb77bce7b96a062c40bLennart Poettering                                return -ENOMEM;
ee8c45689526ca973407cbb77bce7b96a062c40bLennart Poettering
ee8c45689526ca973407cbb77bce7b96a062c40bLennart Poettering                        *ret = p;
ee8c45689526ca973407cbb77bce7b96a062c40bLennart Poettering                        return 1;
ee8c45689526ca973407cbb77bce7b96a062c40bLennart Poettering                }
ee8c45689526ca973407cbb77bce7b96a062c40bLennart Poettering        }
ee8c45689526ca973407cbb77bce7b96a062c40bLennart Poettering
ee8c45689526ca973407cbb77bce7b96a062c40bLennart Poettering        t = arphrd_to_name(iftype);
ee8c45689526ca973407cbb77bce7b96a062c40bLennart Poettering        if (!t) {
ee8c45689526ca973407cbb77bce7b96a062c40bLennart Poettering                *ret = NULL;
ee8c45689526ca973407cbb77bce7b96a062c40bLennart Poettering                return 0;
ee8c45689526ca973407cbb77bce7b96a062c40bLennart Poettering        }
ee8c45689526ca973407cbb77bce7b96a062c40bLennart Poettering
ee8c45689526ca973407cbb77bce7b96a062c40bLennart Poettering        p = strdup(t);
ee8c45689526ca973407cbb77bce7b96a062c40bLennart Poettering        if (!p)
ee8c45689526ca973407cbb77bce7b96a062c40bLennart Poettering                return -ENOMEM;
ee8c45689526ca973407cbb77bce7b96a062c40bLennart Poettering
ee8c45689526ca973407cbb77bce7b96a062c40bLennart Poettering        ascii_strlower(p);
ee8c45689526ca973407cbb77bce7b96a062c40bLennart Poettering        *ret = p;
ee8c45689526ca973407cbb77bce7b96a062c40bLennart Poettering
ee8c45689526ca973407cbb77bce7b96a062c40bLennart Poettering        return 0;
ee8c45689526ca973407cbb77bce7b96a062c40bLennart Poettering}
ee8c45689526ca973407cbb77bce7b96a062c40bLennart Poettering
ee8c45689526ca973407cbb77bce7b96a062c40bLennart Poetteringstatic int list_links(char **args, unsigned n) {
ee8c45689526ca973407cbb77bce7b96a062c40bLennart Poettering        _cleanup_rtnl_message_unref_ sd_rtnl_message *req = NULL, *reply = NULL;
ee8c45689526ca973407cbb77bce7b96a062c40bLennart Poettering        _cleanup_udev_unref_ struct udev *udev = NULL;
ee8c45689526ca973407cbb77bce7b96a062c40bLennart Poettering        _cleanup_rtnl_unref_ sd_rtnl *rtnl = NULL;
ee8c45689526ca973407cbb77bce7b96a062c40bLennart Poettering        sd_rtnl_message *i;
ee8c45689526ca973407cbb77bce7b96a062c40bLennart Poettering        unsigned c = 0;
ee8c45689526ca973407cbb77bce7b96a062c40bLennart Poettering        int r;
ee8c45689526ca973407cbb77bce7b96a062c40bLennart Poettering
ee8c45689526ca973407cbb77bce7b96a062c40bLennart Poettering        pager_open_if_enabled();
ee8c45689526ca973407cbb77bce7b96a062c40bLennart Poettering
ee8c45689526ca973407cbb77bce7b96a062c40bLennart Poettering        r = sd_rtnl_open(&rtnl, 0);
ee8c45689526ca973407cbb77bce7b96a062c40bLennart Poettering        if (r < 0) {
ee8c45689526ca973407cbb77bce7b96a062c40bLennart Poettering                log_error("Failed to connect to netlink: %s", strerror(-r));
ee8c45689526ca973407cbb77bce7b96a062c40bLennart Poettering                return r;
ee8c45689526ca973407cbb77bce7b96a062c40bLennart Poettering        }
ee8c45689526ca973407cbb77bce7b96a062c40bLennart Poettering
ee8c45689526ca973407cbb77bce7b96a062c40bLennart Poettering        udev = udev_new();
ee8c45689526ca973407cbb77bce7b96a062c40bLennart Poettering        if (!udev) {
ee8c45689526ca973407cbb77bce7b96a062c40bLennart Poettering                log_error("Failed to connect to udev: %m");
ee8c45689526ca973407cbb77bce7b96a062c40bLennart Poettering                return -errno;
ee8c45689526ca973407cbb77bce7b96a062c40bLennart Poettering        }
ee8c45689526ca973407cbb77bce7b96a062c40bLennart Poettering
ee8c45689526ca973407cbb77bce7b96a062c40bLennart Poettering        r = sd_rtnl_message_new_link(rtnl, &req, RTM_GETLINK, 0);
ee8c45689526ca973407cbb77bce7b96a062c40bLennart Poettering        if (r < 0)
ee8c45689526ca973407cbb77bce7b96a062c40bLennart Poettering                return rtnl_log_create_error(r);
ee8c45689526ca973407cbb77bce7b96a062c40bLennart Poettering
ee8c45689526ca973407cbb77bce7b96a062c40bLennart Poettering        r = sd_rtnl_message_request_dump(req, true);
ee8c45689526ca973407cbb77bce7b96a062c40bLennart Poettering        if (r < 0)
ee8c45689526ca973407cbb77bce7b96a062c40bLennart Poettering                return rtnl_log_create_error(r);
ee8c45689526ca973407cbb77bce7b96a062c40bLennart Poettering
ee8c45689526ca973407cbb77bce7b96a062c40bLennart Poettering        r = sd_rtnl_call(rtnl, req, 0, &reply);
ee8c45689526ca973407cbb77bce7b96a062c40bLennart Poettering        if (r < 0) {
ee8c45689526ca973407cbb77bce7b96a062c40bLennart Poettering                log_error("Failed to enumerate links: %s", strerror(-r));
ee8c45689526ca973407cbb77bce7b96a062c40bLennart Poettering                return r;
ee8c45689526ca973407cbb77bce7b96a062c40bLennart Poettering        }
ee8c45689526ca973407cbb77bce7b96a062c40bLennart Poettering
ee8c45689526ca973407cbb77bce7b96a062c40bLennart Poettering        if (arg_legend)
df3fb561b2df486a495a5f0bcc83168bd1860533Lennart Poettering                printf("%3s %-16s %-10s %-10s %-10s\n", "IDX", "LINK", "TYPE", "ADMIN", "OPERATIONAL");
ee8c45689526ca973407cbb77bce7b96a062c40bLennart Poettering
ee8c45689526ca973407cbb77bce7b96a062c40bLennart Poettering        for (i = reply; i; i = sd_rtnl_message_next(i)) {
ee8c45689526ca973407cbb77bce7b96a062c40bLennart Poettering                _cleanup_free_ char *state = NULL, *operational_state = NULL;
ee8c45689526ca973407cbb77bce7b96a062c40bLennart Poettering                _cleanup_udev_device_unref_ struct udev_device *d = NULL;
df3fb561b2df486a495a5f0bcc83168bd1860533Lennart Poettering                const char *on_color = "", *off_color = "";
df3fb561b2df486a495a5f0bcc83168bd1860533Lennart Poettering                 char devid[2 + DECIMAL_STR_MAX(int)];
ee8c45689526ca973407cbb77bce7b96a062c40bLennart Poettering                _cleanup_free_ char *t = NULL;
ee8c45689526ca973407cbb77bce7b96a062c40bLennart Poettering                const char *name;
ee8c45689526ca973407cbb77bce7b96a062c40bLennart Poettering                unsigned iftype;
ee8c45689526ca973407cbb77bce7b96a062c40bLennart Poettering                uint16_t type;
ee8c45689526ca973407cbb77bce7b96a062c40bLennart Poettering                int ifindex;
ee8c45689526ca973407cbb77bce7b96a062c40bLennart Poettering
ee8c45689526ca973407cbb77bce7b96a062c40bLennart Poettering                r = sd_rtnl_message_get_type(i, &type);
ee8c45689526ca973407cbb77bce7b96a062c40bLennart Poettering                if (r < 0)
ee8c45689526ca973407cbb77bce7b96a062c40bLennart Poettering                        return rtnl_log_parse_error(r);
ee8c45689526ca973407cbb77bce7b96a062c40bLennart Poettering
ee8c45689526ca973407cbb77bce7b96a062c40bLennart Poettering                if (type != RTM_NEWLINK)
ee8c45689526ca973407cbb77bce7b96a062c40bLennart Poettering                        continue;
ee8c45689526ca973407cbb77bce7b96a062c40bLennart Poettering
ee8c45689526ca973407cbb77bce7b96a062c40bLennart Poettering                r = sd_rtnl_message_link_get_ifindex(i, &ifindex);
ee8c45689526ca973407cbb77bce7b96a062c40bLennart Poettering                if (r < 0)
ee8c45689526ca973407cbb77bce7b96a062c40bLennart Poettering                        return rtnl_log_parse_error(r);
ee8c45689526ca973407cbb77bce7b96a062c40bLennart Poettering
ee8c45689526ca973407cbb77bce7b96a062c40bLennart Poettering                r = sd_rtnl_message_read_string(i, IFLA_IFNAME, &name);
ee8c45689526ca973407cbb77bce7b96a062c40bLennart Poettering                if (r < 0)
ee8c45689526ca973407cbb77bce7b96a062c40bLennart Poettering                        return rtnl_log_parse_error(r);
ee8c45689526ca973407cbb77bce7b96a062c40bLennart Poettering
ee8c45689526ca973407cbb77bce7b96a062c40bLennart Poettering                r = sd_rtnl_message_link_get_type(i, &iftype);
ee8c45689526ca973407cbb77bce7b96a062c40bLennart Poettering                if (r < 0)
ee8c45689526ca973407cbb77bce7b96a062c40bLennart Poettering                        return rtnl_log_parse_error(r);
ee8c45689526ca973407cbb77bce7b96a062c40bLennart Poettering
ee8c45689526ca973407cbb77bce7b96a062c40bLennart Poettering                sd_network_get_link_state(ifindex, &state);
ee8c45689526ca973407cbb77bce7b96a062c40bLennart Poettering                sd_network_get_link_operational_state(ifindex, &operational_state);
ee8c45689526ca973407cbb77bce7b96a062c40bLennart Poettering
ee8c45689526ca973407cbb77bce7b96a062c40bLennart Poettering                sprintf(devid, "n%i", ifindex);
ee8c45689526ca973407cbb77bce7b96a062c40bLennart Poettering                d = udev_device_new_from_device_id(udev, devid);
ee8c45689526ca973407cbb77bce7b96a062c40bLennart Poettering
ee8c45689526ca973407cbb77bce7b96a062c40bLennart Poettering                link_get_type_string(iftype, d, &t);
ee8c45689526ca973407cbb77bce7b96a062c40bLennart Poettering
df3fb561b2df486a495a5f0bcc83168bd1860533Lennart Poettering                if (streq_ptr(operational_state, "routable")) {
df3fb561b2df486a495a5f0bcc83168bd1860533Lennart Poettering                        on_color = ansi_highlight_green();
df3fb561b2df486a495a5f0bcc83168bd1860533Lennart Poettering                        off_color = ansi_highlight_off();
df3fb561b2df486a495a5f0bcc83168bd1860533Lennart Poettering                } else if (streq_ptr(operational_state, "degraded")) {
df3fb561b2df486a495a5f0bcc83168bd1860533Lennart Poettering                        on_color = ansi_highlight_yellow();
df3fb561b2df486a495a5f0bcc83168bd1860533Lennart Poettering                        off_color = ansi_highlight_off();
df3fb561b2df486a495a5f0bcc83168bd1860533Lennart Poettering                }
df3fb561b2df486a495a5f0bcc83168bd1860533Lennart Poettering
df3fb561b2df486a495a5f0bcc83168bd1860533Lennart Poettering                printf("%3i %-16s %-10s %-10s %s%-10s%s\n", ifindex, name, strna(t), strna(state), on_color, strna(operational_state), off_color);
ee8c45689526ca973407cbb77bce7b96a062c40bLennart Poettering                c++;
ee8c45689526ca973407cbb77bce7b96a062c40bLennart Poettering        }
ee8c45689526ca973407cbb77bce7b96a062c40bLennart Poettering
ee8c45689526ca973407cbb77bce7b96a062c40bLennart Poettering        if (arg_legend)
ee8c45689526ca973407cbb77bce7b96a062c40bLennart Poettering                printf("\n%u links listed.\n", c);
ee8c45689526ca973407cbb77bce7b96a062c40bLennart Poettering
ee8c45689526ca973407cbb77bce7b96a062c40bLennart Poettering        return 0;
ee8c45689526ca973407cbb77bce7b96a062c40bLennart Poettering}
ee8c45689526ca973407cbb77bce7b96a062c40bLennart Poettering
ee8c45689526ca973407cbb77bce7b96a062c40bLennart Poetteringstatic int dump_addresses(sd_rtnl *rtnl, const char *prefix, int ifindex) {
ee8c45689526ca973407cbb77bce7b96a062c40bLennart Poettering        _cleanup_free_ struct local_address *local = NULL;
ee8c45689526ca973407cbb77bce7b96a062c40bLennart Poettering        int r, n, i;
ee8c45689526ca973407cbb77bce7b96a062c40bLennart Poettering
ee8c45689526ca973407cbb77bce7b96a062c40bLennart Poettering        n = local_addresses(rtnl, ifindex, &local);
ee8c45689526ca973407cbb77bce7b96a062c40bLennart Poettering        if (n < 0)
ee8c45689526ca973407cbb77bce7b96a062c40bLennart Poettering                return n;
ee8c45689526ca973407cbb77bce7b96a062c40bLennart Poettering
ee8c45689526ca973407cbb77bce7b96a062c40bLennart Poettering        for (i = 0; i < n; i++) {
ee8c45689526ca973407cbb77bce7b96a062c40bLennart Poettering                _cleanup_free_ char *pretty = NULL;
ee8c45689526ca973407cbb77bce7b96a062c40bLennart Poettering
ee8c45689526ca973407cbb77bce7b96a062c40bLennart Poettering                r = in_addr_to_string(local[i].family, &local[i].address, &pretty);
ee8c45689526ca973407cbb77bce7b96a062c40bLennart Poettering                if (r < 0)
ee8c45689526ca973407cbb77bce7b96a062c40bLennart Poettering                        return r;
ee8c45689526ca973407cbb77bce7b96a062c40bLennart Poettering
ee8c45689526ca973407cbb77bce7b96a062c40bLennart Poettering                printf("%*s%s\n",
ee8c45689526ca973407cbb77bce7b96a062c40bLennart Poettering                       (int) strlen(prefix),
ee8c45689526ca973407cbb77bce7b96a062c40bLennart Poettering                       i == 0 ? prefix : "",
ee8c45689526ca973407cbb77bce7b96a062c40bLennart Poettering                       pretty);
ee8c45689526ca973407cbb77bce7b96a062c40bLennart Poettering        }
ee8c45689526ca973407cbb77bce7b96a062c40bLennart Poettering
ee8c45689526ca973407cbb77bce7b96a062c40bLennart Poettering        return 0;
ee8c45689526ca973407cbb77bce7b96a062c40bLennart Poettering}
ee8c45689526ca973407cbb77bce7b96a062c40bLennart Poettering
ee8c45689526ca973407cbb77bce7b96a062c40bLennart Poetteringstatic void dump_list(const char *prefix, char **l) {
ee8c45689526ca973407cbb77bce7b96a062c40bLennart Poettering        char **i;
ee8c45689526ca973407cbb77bce7b96a062c40bLennart Poettering
ee8c45689526ca973407cbb77bce7b96a062c40bLennart Poettering        STRV_FOREACH(i, l) {
ee8c45689526ca973407cbb77bce7b96a062c40bLennart Poettering                printf("%*s%s\n",
ee8c45689526ca973407cbb77bce7b96a062c40bLennart Poettering                       (int) strlen(prefix),
ee8c45689526ca973407cbb77bce7b96a062c40bLennart Poettering                       i == l ? prefix : "",
ee8c45689526ca973407cbb77bce7b96a062c40bLennart Poettering                       *i);
ee8c45689526ca973407cbb77bce7b96a062c40bLennart Poettering        }
ee8c45689526ca973407cbb77bce7b96a062c40bLennart Poettering}
ee8c45689526ca973407cbb77bce7b96a062c40bLennart Poettering
9085f64a6694f2928c79fcce365edb1dca6937d4Lennart Poetteringstatic int link_status_one(sd_rtnl *rtnl, struct udev *udev, const char *name) {
9085f64a6694f2928c79fcce365edb1dca6937d4Lennart Poettering        _cleanup_strv_free_ char **dns = NULL, **ntp = NULL;
9085f64a6694f2928c79fcce365edb1dca6937d4Lennart Poettering        _cleanup_free_ char *state = NULL, *operational_state = NULL;
9085f64a6694f2928c79fcce365edb1dca6937d4Lennart Poettering        _cleanup_rtnl_message_unref_ sd_rtnl_message *req = NULL, *reply = NULL;
9085f64a6694f2928c79fcce365edb1dca6937d4Lennart Poettering        _cleanup_udev_device_unref_ struct udev_device *d = NULL;
9085f64a6694f2928c79fcce365edb1dca6937d4Lennart Poettering        char devid[2 + DECIMAL_STR_MAX(int)];
9085f64a6694f2928c79fcce365edb1dca6937d4Lennart Poettering        _cleanup_free_ char *t = NULL;
9085f64a6694f2928c79fcce365edb1dca6937d4Lennart Poettering        const char *driver = NULL, *path = NULL, *vendor = NULL, *model = NULL;
df3fb561b2df486a495a5f0bcc83168bd1860533Lennart Poettering        const char *on_color = "", *off_color = "";
9085f64a6694f2928c79fcce365edb1dca6937d4Lennart Poettering        struct ether_addr e;
9085f64a6694f2928c79fcce365edb1dca6937d4Lennart Poettering        unsigned iftype;
9085f64a6694f2928c79fcce365edb1dca6937d4Lennart Poettering        int r, ifindex;
9085f64a6694f2928c79fcce365edb1dca6937d4Lennart Poettering        bool have_mac;
9085f64a6694f2928c79fcce365edb1dca6937d4Lennart Poettering        uint32_t mtu;
9085f64a6694f2928c79fcce365edb1dca6937d4Lennart Poettering
9085f64a6694f2928c79fcce365edb1dca6937d4Lennart Poettering        assert(rtnl);
9085f64a6694f2928c79fcce365edb1dca6937d4Lennart Poettering        assert(udev);
9085f64a6694f2928c79fcce365edb1dca6937d4Lennart Poettering        assert(name);
9085f64a6694f2928c79fcce365edb1dca6937d4Lennart Poettering
9085f64a6694f2928c79fcce365edb1dca6937d4Lennart Poettering        if (safe_atoi(name, &ifindex) >= 0 && ifindex > 0)
9085f64a6694f2928c79fcce365edb1dca6937d4Lennart Poettering                r = sd_rtnl_message_new_link(rtnl, &req, RTM_GETLINK, ifindex);
9085f64a6694f2928c79fcce365edb1dca6937d4Lennart Poettering        else {
9085f64a6694f2928c79fcce365edb1dca6937d4Lennart Poettering                r = sd_rtnl_message_new_link(rtnl, &req, RTM_GETLINK, 0);
9085f64a6694f2928c79fcce365edb1dca6937d4Lennart Poettering                if (r < 0)
9085f64a6694f2928c79fcce365edb1dca6937d4Lennart Poettering                        return rtnl_log_create_error(r);
9085f64a6694f2928c79fcce365edb1dca6937d4Lennart Poettering
9085f64a6694f2928c79fcce365edb1dca6937d4Lennart Poettering                r = sd_rtnl_message_append_string(req, IFLA_IFNAME, name);
9085f64a6694f2928c79fcce365edb1dca6937d4Lennart Poettering        }
9085f64a6694f2928c79fcce365edb1dca6937d4Lennart Poettering
9085f64a6694f2928c79fcce365edb1dca6937d4Lennart Poettering        if (r < 0)
9085f64a6694f2928c79fcce365edb1dca6937d4Lennart Poettering                return rtnl_log_create_error(r);
9085f64a6694f2928c79fcce365edb1dca6937d4Lennart Poettering
9085f64a6694f2928c79fcce365edb1dca6937d4Lennart Poettering        r = sd_rtnl_call(rtnl, req, 0, &reply);
9085f64a6694f2928c79fcce365edb1dca6937d4Lennart Poettering        if (r < 0) {
9085f64a6694f2928c79fcce365edb1dca6937d4Lennart Poettering                log_error("Failed to query link: %s", strerror(-r));
9085f64a6694f2928c79fcce365edb1dca6937d4Lennart Poettering                return r;
9085f64a6694f2928c79fcce365edb1dca6937d4Lennart Poettering        }
9085f64a6694f2928c79fcce365edb1dca6937d4Lennart Poettering
9085f64a6694f2928c79fcce365edb1dca6937d4Lennart Poettering        r = sd_rtnl_message_link_get_ifindex(reply, &ifindex);
9085f64a6694f2928c79fcce365edb1dca6937d4Lennart Poettering        if (r < 0)
9085f64a6694f2928c79fcce365edb1dca6937d4Lennart Poettering                return rtnl_log_parse_error(r);
9085f64a6694f2928c79fcce365edb1dca6937d4Lennart Poettering
9085f64a6694f2928c79fcce365edb1dca6937d4Lennart Poettering        r = sd_rtnl_message_read_string(reply, IFLA_IFNAME, &name);
9085f64a6694f2928c79fcce365edb1dca6937d4Lennart Poettering        if (r < 0)
9085f64a6694f2928c79fcce365edb1dca6937d4Lennart Poettering                return rtnl_log_parse_error(r);
9085f64a6694f2928c79fcce365edb1dca6937d4Lennart Poettering
9085f64a6694f2928c79fcce365edb1dca6937d4Lennart Poettering        r = sd_rtnl_message_link_get_type(reply, &iftype);
9085f64a6694f2928c79fcce365edb1dca6937d4Lennart Poettering        if (r < 0)
9085f64a6694f2928c79fcce365edb1dca6937d4Lennart Poettering                return rtnl_log_parse_error(r);
9085f64a6694f2928c79fcce365edb1dca6937d4Lennart Poettering
9085f64a6694f2928c79fcce365edb1dca6937d4Lennart Poettering        have_mac = sd_rtnl_message_read_ether_addr(reply, IFLA_ADDRESS, &e) >= 0;
9085f64a6694f2928c79fcce365edb1dca6937d4Lennart Poettering
9085f64a6694f2928c79fcce365edb1dca6937d4Lennart Poettering        if (have_mac) {
9085f64a6694f2928c79fcce365edb1dca6937d4Lennart Poettering                const uint8_t *p;
9085f64a6694f2928c79fcce365edb1dca6937d4Lennart Poettering                bool all_zeroes = true;
9085f64a6694f2928c79fcce365edb1dca6937d4Lennart Poettering
9085f64a6694f2928c79fcce365edb1dca6937d4Lennart Poettering                for (p = (uint8_t*) &e; p < (uint8_t*) &e + sizeof(e); p++)
9085f64a6694f2928c79fcce365edb1dca6937d4Lennart Poettering                        if (*p != 0) {
9085f64a6694f2928c79fcce365edb1dca6937d4Lennart Poettering                                all_zeroes = false;
9085f64a6694f2928c79fcce365edb1dca6937d4Lennart Poettering                                break;
9085f64a6694f2928c79fcce365edb1dca6937d4Lennart Poettering                        }
9085f64a6694f2928c79fcce365edb1dca6937d4Lennart Poettering
9085f64a6694f2928c79fcce365edb1dca6937d4Lennart Poettering                if (all_zeroes)
9085f64a6694f2928c79fcce365edb1dca6937d4Lennart Poettering                        have_mac = false;
9085f64a6694f2928c79fcce365edb1dca6937d4Lennart Poettering        }
9085f64a6694f2928c79fcce365edb1dca6937d4Lennart Poettering
9085f64a6694f2928c79fcce365edb1dca6937d4Lennart Poettering        sd_rtnl_message_read_u32(reply, IFLA_MTU, &mtu);
9085f64a6694f2928c79fcce365edb1dca6937d4Lennart Poettering
9085f64a6694f2928c79fcce365edb1dca6937d4Lennart Poettering        sd_network_get_link_state(ifindex, &state);
9085f64a6694f2928c79fcce365edb1dca6937d4Lennart Poettering        sd_network_get_link_operational_state(ifindex, &operational_state);
9085f64a6694f2928c79fcce365edb1dca6937d4Lennart Poettering
9085f64a6694f2928c79fcce365edb1dca6937d4Lennart Poettering        sd_network_get_link_dns(ifindex, &dns);
9085f64a6694f2928c79fcce365edb1dca6937d4Lennart Poettering        sd_network_get_link_ntp(ifindex, &ntp);
9085f64a6694f2928c79fcce365edb1dca6937d4Lennart Poettering
9085f64a6694f2928c79fcce365edb1dca6937d4Lennart Poettering        sprintf(devid, "n%i", ifindex);
9085f64a6694f2928c79fcce365edb1dca6937d4Lennart Poettering        d = udev_device_new_from_device_id(udev, devid);
9085f64a6694f2928c79fcce365edb1dca6937d4Lennart Poettering
9085f64a6694f2928c79fcce365edb1dca6937d4Lennart Poettering        link_get_type_string(iftype, d, &t);
9085f64a6694f2928c79fcce365edb1dca6937d4Lennart Poettering
9085f64a6694f2928c79fcce365edb1dca6937d4Lennart Poettering        if (d) {
9085f64a6694f2928c79fcce365edb1dca6937d4Lennart Poettering                driver = udev_device_get_property_value(d, "ID_NET_DRIVER");
9085f64a6694f2928c79fcce365edb1dca6937d4Lennart Poettering                path = udev_device_get_property_value(d, "ID_PATH");
9085f64a6694f2928c79fcce365edb1dca6937d4Lennart Poettering
9085f64a6694f2928c79fcce365edb1dca6937d4Lennart Poettering                vendor = udev_device_get_property_value(d, "ID_VENDOR_FROM_DATABASE");
9085f64a6694f2928c79fcce365edb1dca6937d4Lennart Poettering                if (!vendor)
9085f64a6694f2928c79fcce365edb1dca6937d4Lennart Poettering                        vendor = udev_device_get_property_value(d, "ID_VENDOR");
9085f64a6694f2928c79fcce365edb1dca6937d4Lennart Poettering
9085f64a6694f2928c79fcce365edb1dca6937d4Lennart Poettering                model = udev_device_get_property_value(d, "ID_MODEL_FROM_DATABASE");
9085f64a6694f2928c79fcce365edb1dca6937d4Lennart Poettering                if (!model)
9085f64a6694f2928c79fcce365edb1dca6937d4Lennart Poettering                        model = udev_device_get_property_value(d, "ID_MODEL");
9085f64a6694f2928c79fcce365edb1dca6937d4Lennart Poettering        }
9085f64a6694f2928c79fcce365edb1dca6937d4Lennart Poettering
df3fb561b2df486a495a5f0bcc83168bd1860533Lennart Poettering        if (streq_ptr(operational_state, "routable")) {
df3fb561b2df486a495a5f0bcc83168bd1860533Lennart Poettering                on_color = ansi_highlight_green();
df3fb561b2df486a495a5f0bcc83168bd1860533Lennart Poettering                off_color = ansi_highlight_off();
df3fb561b2df486a495a5f0bcc83168bd1860533Lennart Poettering        } else if (streq_ptr(operational_state, "degraded")) {
df3fb561b2df486a495a5f0bcc83168bd1860533Lennart Poettering                on_color = ansi_highlight_yellow();
df3fb561b2df486a495a5f0bcc83168bd1860533Lennart Poettering                off_color = ansi_highlight_off();
df3fb561b2df486a495a5f0bcc83168bd1860533Lennart Poettering        }
df3fb561b2df486a495a5f0bcc83168bd1860533Lennart Poettering
df3fb561b2df486a495a5f0bcc83168bd1860533Lennart Poettering        printf("%s%s%s %i: %s\n", on_color, draw_special_char(DRAW_BLACK_CIRCLE), off_color, ifindex, name);
9085f64a6694f2928c79fcce365edb1dca6937d4Lennart Poettering
9085f64a6694f2928c79fcce365edb1dca6937d4Lennart Poettering        printf("        Type: %s\n"
df3fb561b2df486a495a5f0bcc83168bd1860533Lennart Poettering               "       State: %s%s%s (%s)\n",
9085f64a6694f2928c79fcce365edb1dca6937d4Lennart Poettering               strna(t),
df3fb561b2df486a495a5f0bcc83168bd1860533Lennart Poettering               on_color, strna(operational_state), off_color,
9085f64a6694f2928c79fcce365edb1dca6937d4Lennart Poettering               strna(state));
9085f64a6694f2928c79fcce365edb1dca6937d4Lennart Poettering
9085f64a6694f2928c79fcce365edb1dca6937d4Lennart Poettering        if (path)
9085f64a6694f2928c79fcce365edb1dca6937d4Lennart Poettering                printf("        Path: %s\n", path);
9085f64a6694f2928c79fcce365edb1dca6937d4Lennart Poettering        if (driver)
9085f64a6694f2928c79fcce365edb1dca6937d4Lennart Poettering                printf("      Driver: %s\n", driver);
9085f64a6694f2928c79fcce365edb1dca6937d4Lennart Poettering        if (vendor)
9085f64a6694f2928c79fcce365edb1dca6937d4Lennart Poettering                printf("      Vendor: %s\n", vendor);
9085f64a6694f2928c79fcce365edb1dca6937d4Lennart Poettering        if (model)
9085f64a6694f2928c79fcce365edb1dca6937d4Lennart Poettering                printf("       Model: %s\n", model);
9085f64a6694f2928c79fcce365edb1dca6937d4Lennart Poettering
9085f64a6694f2928c79fcce365edb1dca6937d4Lennart Poettering        if (have_mac)
9085f64a6694f2928c79fcce365edb1dca6937d4Lennart Poettering                printf("  HW Address: %s\n", ether_ntoa(&e));
9085f64a6694f2928c79fcce365edb1dca6937d4Lennart Poettering
9085f64a6694f2928c79fcce365edb1dca6937d4Lennart Poettering        if (mtu > 0)
9085f64a6694f2928c79fcce365edb1dca6937d4Lennart Poettering                printf("         MTU: %u\n", mtu);
9085f64a6694f2928c79fcce365edb1dca6937d4Lennart Poettering
9085f64a6694f2928c79fcce365edb1dca6937d4Lennart Poettering        dump_addresses(rtnl, "     Address: ", ifindex);
9085f64a6694f2928c79fcce365edb1dca6937d4Lennart Poettering
9085f64a6694f2928c79fcce365edb1dca6937d4Lennart Poettering        if (!strv_isempty(dns))
9085f64a6694f2928c79fcce365edb1dca6937d4Lennart Poettering                dump_list("         DNS: ", dns);
9085f64a6694f2928c79fcce365edb1dca6937d4Lennart Poettering        if (!strv_isempty(ntp))
9085f64a6694f2928c79fcce365edb1dca6937d4Lennart Poettering                dump_list("         NTP: ", ntp);
9085f64a6694f2928c79fcce365edb1dca6937d4Lennart Poettering
9085f64a6694f2928c79fcce365edb1dca6937d4Lennart Poettering        return 0;
9085f64a6694f2928c79fcce365edb1dca6937d4Lennart Poettering}
9085f64a6694f2928c79fcce365edb1dca6937d4Lennart Poettering
ee8c45689526ca973407cbb77bce7b96a062c40bLennart Poetteringstatic int link_status(char **args, unsigned n) {
ee8c45689526ca973407cbb77bce7b96a062c40bLennart Poettering        _cleanup_udev_unref_ struct udev *udev = NULL;
ee8c45689526ca973407cbb77bce7b96a062c40bLennart Poettering        _cleanup_rtnl_unref_ sd_rtnl *rtnl = NULL;
ee8c45689526ca973407cbb77bce7b96a062c40bLennart Poettering        char **name;
ee8c45689526ca973407cbb77bce7b96a062c40bLennart Poettering        int r;
ee8c45689526ca973407cbb77bce7b96a062c40bLennart Poettering
9085f64a6694f2928c79fcce365edb1dca6937d4Lennart Poettering        if (n <= 1 && !arg_all) {
ee8c45689526ca973407cbb77bce7b96a062c40bLennart Poettering                _cleanup_free_ char *operational_state = NULL;
03cc0fd1431b82e59c11ae12a274c1f2df23169dLennart Poettering                _cleanup_strv_free_ char **dns = NULL, **ntp = NULL;
ee8c45689526ca973407cbb77bce7b96a062c40bLennart Poettering
03cc0fd1431b82e59c11ae12a274c1f2df23169dLennart Poettering                sd_network_get_operational_state(&operational_state);
03cc0fd1431b82e59c11ae12a274c1f2df23169dLennart Poettering                if (operational_state)
03cc0fd1431b82e59c11ae12a274c1f2df23169dLennart Poettering                        printf("       State: %s\n", operational_state);
03cc0fd1431b82e59c11ae12a274c1f2df23169dLennart Poettering
03cc0fd1431b82e59c11ae12a274c1f2df23169dLennart Poettering                sd_network_get_dns(&dns);
03cc0fd1431b82e59c11ae12a274c1f2df23169dLennart Poettering                if (!strv_isempty(dns))
03cc0fd1431b82e59c11ae12a274c1f2df23169dLennart Poettering                        dump_list("         DNS: ", dns);
03cc0fd1431b82e59c11ae12a274c1f2df23169dLennart Poettering
03cc0fd1431b82e59c11ae12a274c1f2df23169dLennart Poettering                sd_network_get_dns(&ntp);
03cc0fd1431b82e59c11ae12a274c1f2df23169dLennart Poettering                if (!strv_isempty(ntp))
03cc0fd1431b82e59c11ae12a274c1f2df23169dLennart Poettering                        dump_list("         NTP: ", ntp);
ee8c45689526ca973407cbb77bce7b96a062c40bLennart Poettering
ee8c45689526ca973407cbb77bce7b96a062c40bLennart Poettering                return 0;
ee8c45689526ca973407cbb77bce7b96a062c40bLennart Poettering        }
ee8c45689526ca973407cbb77bce7b96a062c40bLennart Poettering
ee8c45689526ca973407cbb77bce7b96a062c40bLennart Poettering        pager_open_if_enabled();
ee8c45689526ca973407cbb77bce7b96a062c40bLennart Poettering
ee8c45689526ca973407cbb77bce7b96a062c40bLennart Poettering        r = sd_rtnl_open(&rtnl, 0);
ee8c45689526ca973407cbb77bce7b96a062c40bLennart Poettering        if (r < 0) {
ee8c45689526ca973407cbb77bce7b96a062c40bLennart Poettering                log_error("Failed to connect to netlink: %s", strerror(-r));
ee8c45689526ca973407cbb77bce7b96a062c40bLennart Poettering                return r;
ee8c45689526ca973407cbb77bce7b96a062c40bLennart Poettering        }
ee8c45689526ca973407cbb77bce7b96a062c40bLennart Poettering
ee8c45689526ca973407cbb77bce7b96a062c40bLennart Poettering        udev = udev_new();
ee8c45689526ca973407cbb77bce7b96a062c40bLennart Poettering        if (!udev) {
ee8c45689526ca973407cbb77bce7b96a062c40bLennart Poettering                log_error("Failed to connect to udev: %m");
ee8c45689526ca973407cbb77bce7b96a062c40bLennart Poettering                return -errno;
ee8c45689526ca973407cbb77bce7b96a062c40bLennart Poettering        }
ee8c45689526ca973407cbb77bce7b96a062c40bLennart Poettering
9085f64a6694f2928c79fcce365edb1dca6937d4Lennart Poettering        if (arg_all) {
ee8c45689526ca973407cbb77bce7b96a062c40bLennart Poettering                _cleanup_rtnl_message_unref_ sd_rtnl_message *req = NULL, *reply = NULL;
9085f64a6694f2928c79fcce365edb1dca6937d4Lennart Poettering                sd_rtnl_message *i;
9085f64a6694f2928c79fcce365edb1dca6937d4Lennart Poettering                bool space = false;
9085f64a6694f2928c79fcce365edb1dca6937d4Lennart Poettering                uint16_t type;
ee8c45689526ca973407cbb77bce7b96a062c40bLennart Poettering
9085f64a6694f2928c79fcce365edb1dca6937d4Lennart Poettering                r = sd_rtnl_message_new_link(rtnl, &req, RTM_GETLINK, 0);
9085f64a6694f2928c79fcce365edb1dca6937d4Lennart Poettering                if (r < 0)
9085f64a6694f2928c79fcce365edb1dca6937d4Lennart Poettering                        return rtnl_log_create_error(r);
ee8c45689526ca973407cbb77bce7b96a062c40bLennart Poettering
9085f64a6694f2928c79fcce365edb1dca6937d4Lennart Poettering                r = sd_rtnl_message_request_dump(req, true);
ee8c45689526ca973407cbb77bce7b96a062c40bLennart Poettering                if (r < 0)
ee8c45689526ca973407cbb77bce7b96a062c40bLennart Poettering                        return rtnl_log_create_error(r);
ee8c45689526ca973407cbb77bce7b96a062c40bLennart Poettering
ee8c45689526ca973407cbb77bce7b96a062c40bLennart Poettering                r = sd_rtnl_call(rtnl, req, 0, &reply);
ee8c45689526ca973407cbb77bce7b96a062c40bLennart Poettering                if (r < 0) {
9085f64a6694f2928c79fcce365edb1dca6937d4Lennart Poettering                        log_error("Failed to enumerate links: %s", strerror(-r));
9085f64a6694f2928c79fcce365edb1dca6937d4Lennart Poettering                        return r;
ee8c45689526ca973407cbb77bce7b96a062c40bLennart Poettering                }
ee8c45689526ca973407cbb77bce7b96a062c40bLennart Poettering
9085f64a6694f2928c79fcce365edb1dca6937d4Lennart Poettering                for (i = reply; i; i = sd_rtnl_message_next(i)) {
9085f64a6694f2928c79fcce365edb1dca6937d4Lennart Poettering                        const char *nn;
ee8c45689526ca973407cbb77bce7b96a062c40bLennart Poettering
9085f64a6694f2928c79fcce365edb1dca6937d4Lennart Poettering                        r = sd_rtnl_message_get_type(i, &type);
9085f64a6694f2928c79fcce365edb1dca6937d4Lennart Poettering                        if (r < 0)
9085f64a6694f2928c79fcce365edb1dca6937d4Lennart Poettering                                return rtnl_log_parse_error(r);
ee8c45689526ca973407cbb77bce7b96a062c40bLennart Poettering
9085f64a6694f2928c79fcce365edb1dca6937d4Lennart Poettering                        if (type != RTM_NEWLINK)
9085f64a6694f2928c79fcce365edb1dca6937d4Lennart Poettering                                continue;
ee8c45689526ca973407cbb77bce7b96a062c40bLennart Poettering
9085f64a6694f2928c79fcce365edb1dca6937d4Lennart Poettering                        r = sd_rtnl_message_read_string(i, IFLA_IFNAME, &nn);
9085f64a6694f2928c79fcce365edb1dca6937d4Lennart Poettering                        if (r < 0)
9085f64a6694f2928c79fcce365edb1dca6937d4Lennart Poettering                                return rtnl_log_parse_error(r);
ee8c45689526ca973407cbb77bce7b96a062c40bLennart Poettering
9085f64a6694f2928c79fcce365edb1dca6937d4Lennart Poettering                        if (space)
9085f64a6694f2928c79fcce365edb1dca6937d4Lennart Poettering                                fputc('\n', stdout);
ee8c45689526ca973407cbb77bce7b96a062c40bLennart Poettering
9085f64a6694f2928c79fcce365edb1dca6937d4Lennart Poettering                        link_status_one(rtnl, udev, nn);
9085f64a6694f2928c79fcce365edb1dca6937d4Lennart Poettering                        space = true;
ee8c45689526ca973407cbb77bce7b96a062c40bLennart Poettering                }
9085f64a6694f2928c79fcce365edb1dca6937d4Lennart Poettering        }
ee8c45689526ca973407cbb77bce7b96a062c40bLennart Poettering
9085f64a6694f2928c79fcce365edb1dca6937d4Lennart Poettering        STRV_FOREACH(name, args + 1) {
9085f64a6694f2928c79fcce365edb1dca6937d4Lennart Poettering                if (name != args+1)
9085f64a6694f2928c79fcce365edb1dca6937d4Lennart Poettering                        fputc('\n', stdout);
ee8c45689526ca973407cbb77bce7b96a062c40bLennart Poettering
9085f64a6694f2928c79fcce365edb1dca6937d4Lennart Poettering                link_status_one(rtnl, udev, *name);
ee8c45689526ca973407cbb77bce7b96a062c40bLennart Poettering        }
ee8c45689526ca973407cbb77bce7b96a062c40bLennart Poettering
ee8c45689526ca973407cbb77bce7b96a062c40bLennart Poettering        return 0;
ee8c45689526ca973407cbb77bce7b96a062c40bLennart Poettering}
ee8c45689526ca973407cbb77bce7b96a062c40bLennart Poettering
ee8c45689526ca973407cbb77bce7b96a062c40bLennart Poetteringstatic void help(void) {
ee8c45689526ca973407cbb77bce7b96a062c40bLennart Poettering        printf("%s [OPTIONS...]\n\n"
ee8c45689526ca973407cbb77bce7b96a062c40bLennart Poettering               "Query and control the networking subsystem.\n\n"
ee8c45689526ca973407cbb77bce7b96a062c40bLennart Poettering               "  -h --help             Show this help\n"
9085f64a6694f2928c79fcce365edb1dca6937d4Lennart Poettering               "     --version          Show package version\n"
9085f64a6694f2928c79fcce365edb1dca6937d4Lennart Poettering               "     --no-pager         Do not pipe output into a pager\n"
9085f64a6694f2928c79fcce365edb1dca6937d4Lennart Poettering               "     --no-legend        Do not show the headers and footers\n"
9085f64a6694f2928c79fcce365edb1dca6937d4Lennart Poettering               "  -a --all              Show status for all links\n\n"
ee8c45689526ca973407cbb77bce7b96a062c40bLennart Poettering               "Commands:\n"
ee8c45689526ca973407cbb77bce7b96a062c40bLennart Poettering               "  list                  List links\n"
ee8c45689526ca973407cbb77bce7b96a062c40bLennart Poettering               "  status LINK           Show link status\n"
ee8c45689526ca973407cbb77bce7b96a062c40bLennart Poettering               , program_invocation_short_name);
ee8c45689526ca973407cbb77bce7b96a062c40bLennart Poettering}
ee8c45689526ca973407cbb77bce7b96a062c40bLennart Poettering
ee8c45689526ca973407cbb77bce7b96a062c40bLennart Poetteringstatic int parse_argv(int argc, char *argv[]) {
ee8c45689526ca973407cbb77bce7b96a062c40bLennart Poettering
ee8c45689526ca973407cbb77bce7b96a062c40bLennart Poettering        enum {
ee8c45689526ca973407cbb77bce7b96a062c40bLennart Poettering                ARG_VERSION = 0x100,
ee8c45689526ca973407cbb77bce7b96a062c40bLennart Poettering                ARG_NO_PAGER,
ee8c45689526ca973407cbb77bce7b96a062c40bLennart Poettering                ARG_NO_LEGEND,
ee8c45689526ca973407cbb77bce7b96a062c40bLennart Poettering        };
ee8c45689526ca973407cbb77bce7b96a062c40bLennart Poettering
ee8c45689526ca973407cbb77bce7b96a062c40bLennart Poettering        static const struct option options[] = {
ee8c45689526ca973407cbb77bce7b96a062c40bLennart Poettering                { "help",      no_argument,       NULL, 'h'           },
ee8c45689526ca973407cbb77bce7b96a062c40bLennart Poettering                { "version",   no_argument,       NULL, ARG_VERSION   },
ee8c45689526ca973407cbb77bce7b96a062c40bLennart Poettering                { "no-pager",  no_argument,       NULL, ARG_NO_PAGER  },
ee8c45689526ca973407cbb77bce7b96a062c40bLennart Poettering                { "no-legend", no_argument,       NULL, ARG_NO_LEGEND },
9085f64a6694f2928c79fcce365edb1dca6937d4Lennart Poettering                { "all",       no_argument,       NULL, 'a'           },
ee8c45689526ca973407cbb77bce7b96a062c40bLennart Poettering                {}
ee8c45689526ca973407cbb77bce7b96a062c40bLennart Poettering        };
ee8c45689526ca973407cbb77bce7b96a062c40bLennart Poettering
ee8c45689526ca973407cbb77bce7b96a062c40bLennart Poettering        int c;
ee8c45689526ca973407cbb77bce7b96a062c40bLennart Poettering
ee8c45689526ca973407cbb77bce7b96a062c40bLennart Poettering        assert(argc >= 0);
ee8c45689526ca973407cbb77bce7b96a062c40bLennart Poettering        assert(argv);
ee8c45689526ca973407cbb77bce7b96a062c40bLennart Poettering
9085f64a6694f2928c79fcce365edb1dca6937d4Lennart Poettering        while ((c = getopt_long(argc, argv, "ha", options, NULL)) >= 0) {
ee8c45689526ca973407cbb77bce7b96a062c40bLennart Poettering
ee8c45689526ca973407cbb77bce7b96a062c40bLennart Poettering                switch (c) {
ee8c45689526ca973407cbb77bce7b96a062c40bLennart Poettering
ee8c45689526ca973407cbb77bce7b96a062c40bLennart Poettering                case 'h':
ee8c45689526ca973407cbb77bce7b96a062c40bLennart Poettering                        help();
ee8c45689526ca973407cbb77bce7b96a062c40bLennart Poettering                        return 0;
ee8c45689526ca973407cbb77bce7b96a062c40bLennart Poettering
ee8c45689526ca973407cbb77bce7b96a062c40bLennart Poettering                case ARG_VERSION:
ee8c45689526ca973407cbb77bce7b96a062c40bLennart Poettering                        puts(PACKAGE_STRING);
ee8c45689526ca973407cbb77bce7b96a062c40bLennart Poettering                        puts(SYSTEMD_FEATURES);
ee8c45689526ca973407cbb77bce7b96a062c40bLennart Poettering                        return 0;
ee8c45689526ca973407cbb77bce7b96a062c40bLennart Poettering
ee8c45689526ca973407cbb77bce7b96a062c40bLennart Poettering                case ARG_NO_PAGER:
ee8c45689526ca973407cbb77bce7b96a062c40bLennart Poettering                        arg_no_pager = true;
ee8c45689526ca973407cbb77bce7b96a062c40bLennart Poettering                        break;
ee8c45689526ca973407cbb77bce7b96a062c40bLennart Poettering
ee8c45689526ca973407cbb77bce7b96a062c40bLennart Poettering                case ARG_NO_LEGEND:
ee8c45689526ca973407cbb77bce7b96a062c40bLennart Poettering                        arg_legend = false;
ee8c45689526ca973407cbb77bce7b96a062c40bLennart Poettering                        break;
ee8c45689526ca973407cbb77bce7b96a062c40bLennart Poettering
9085f64a6694f2928c79fcce365edb1dca6937d4Lennart Poettering                case 'a':
9085f64a6694f2928c79fcce365edb1dca6937d4Lennart Poettering                        arg_all = true;
9085f64a6694f2928c79fcce365edb1dca6937d4Lennart Poettering                        break;
9085f64a6694f2928c79fcce365edb1dca6937d4Lennart Poettering
ee8c45689526ca973407cbb77bce7b96a062c40bLennart Poettering                case '?':
ee8c45689526ca973407cbb77bce7b96a062c40bLennart Poettering                        return -EINVAL;
ee8c45689526ca973407cbb77bce7b96a062c40bLennart Poettering
ee8c45689526ca973407cbb77bce7b96a062c40bLennart Poettering                default:
ee8c45689526ca973407cbb77bce7b96a062c40bLennart Poettering                        assert_not_reached("Unhandled option");
ee8c45689526ca973407cbb77bce7b96a062c40bLennart Poettering                }
ee8c45689526ca973407cbb77bce7b96a062c40bLennart Poettering        }
ee8c45689526ca973407cbb77bce7b96a062c40bLennart Poettering
ee8c45689526ca973407cbb77bce7b96a062c40bLennart Poettering        return 1;
ee8c45689526ca973407cbb77bce7b96a062c40bLennart Poettering}
ee8c45689526ca973407cbb77bce7b96a062c40bLennart Poettering
ee8c45689526ca973407cbb77bce7b96a062c40bLennart Poetteringstatic int networkctl_main(int argc, char *argv[]) {
ee8c45689526ca973407cbb77bce7b96a062c40bLennart Poettering
ee8c45689526ca973407cbb77bce7b96a062c40bLennart Poettering        static const struct {
ee8c45689526ca973407cbb77bce7b96a062c40bLennart Poettering                const char* verb;
ee8c45689526ca973407cbb77bce7b96a062c40bLennart Poettering                const enum {
ee8c45689526ca973407cbb77bce7b96a062c40bLennart Poettering                        MORE,
ee8c45689526ca973407cbb77bce7b96a062c40bLennart Poettering                        LESS,
ee8c45689526ca973407cbb77bce7b96a062c40bLennart Poettering                        EQUAL
ee8c45689526ca973407cbb77bce7b96a062c40bLennart Poettering                } argc_cmp;
ee8c45689526ca973407cbb77bce7b96a062c40bLennart Poettering                const int argc;
ee8c45689526ca973407cbb77bce7b96a062c40bLennart Poettering                int (* const dispatch)(char **args, unsigned n);
ee8c45689526ca973407cbb77bce7b96a062c40bLennart Poettering        } verbs[] = {
ee8c45689526ca973407cbb77bce7b96a062c40bLennart Poettering                { "list",   LESS, 1, list_links  },
ee8c45689526ca973407cbb77bce7b96a062c40bLennart Poettering                { "status", MORE, 1, link_status },
ee8c45689526ca973407cbb77bce7b96a062c40bLennart Poettering        };
ee8c45689526ca973407cbb77bce7b96a062c40bLennart Poettering
ee8c45689526ca973407cbb77bce7b96a062c40bLennart Poettering        int left;
ee8c45689526ca973407cbb77bce7b96a062c40bLennart Poettering        unsigned i;
ee8c45689526ca973407cbb77bce7b96a062c40bLennart Poettering
ee8c45689526ca973407cbb77bce7b96a062c40bLennart Poettering        assert(argc >= 0);
ee8c45689526ca973407cbb77bce7b96a062c40bLennart Poettering        assert(argv);
ee8c45689526ca973407cbb77bce7b96a062c40bLennart Poettering
ee8c45689526ca973407cbb77bce7b96a062c40bLennart Poettering        left = argc - optind;
ee8c45689526ca973407cbb77bce7b96a062c40bLennart Poettering
ee8c45689526ca973407cbb77bce7b96a062c40bLennart Poettering        if (left <= 0)
ee8c45689526ca973407cbb77bce7b96a062c40bLennart Poettering                /* Special rule: no arguments means "list" */
ee8c45689526ca973407cbb77bce7b96a062c40bLennart Poettering                i = 0;
ee8c45689526ca973407cbb77bce7b96a062c40bLennart Poettering        else {
ee8c45689526ca973407cbb77bce7b96a062c40bLennart Poettering                if (streq(argv[optind], "help")) {
ee8c45689526ca973407cbb77bce7b96a062c40bLennart Poettering                        help();
ee8c45689526ca973407cbb77bce7b96a062c40bLennart Poettering                        return 0;
ee8c45689526ca973407cbb77bce7b96a062c40bLennart Poettering                }
ee8c45689526ca973407cbb77bce7b96a062c40bLennart Poettering
ee8c45689526ca973407cbb77bce7b96a062c40bLennart Poettering                for (i = 0; i < ELEMENTSOF(verbs); i++)
ee8c45689526ca973407cbb77bce7b96a062c40bLennart Poettering                        if (streq(argv[optind], verbs[i].verb))
ee8c45689526ca973407cbb77bce7b96a062c40bLennart Poettering                                break;
ee8c45689526ca973407cbb77bce7b96a062c40bLennart Poettering
ee8c45689526ca973407cbb77bce7b96a062c40bLennart Poettering                if (i >= ELEMENTSOF(verbs)) {
ee8c45689526ca973407cbb77bce7b96a062c40bLennart Poettering                        log_error("Unknown operation %s", argv[optind]);
ee8c45689526ca973407cbb77bce7b96a062c40bLennart Poettering                        return -EINVAL;
ee8c45689526ca973407cbb77bce7b96a062c40bLennart Poettering                }
ee8c45689526ca973407cbb77bce7b96a062c40bLennart Poettering        }
ee8c45689526ca973407cbb77bce7b96a062c40bLennart Poettering
ee8c45689526ca973407cbb77bce7b96a062c40bLennart Poettering        switch (verbs[i].argc_cmp) {
ee8c45689526ca973407cbb77bce7b96a062c40bLennart Poettering
ee8c45689526ca973407cbb77bce7b96a062c40bLennart Poettering        case EQUAL:
ee8c45689526ca973407cbb77bce7b96a062c40bLennart Poettering                if (left != verbs[i].argc) {
ee8c45689526ca973407cbb77bce7b96a062c40bLennart Poettering                        log_error("Invalid number of arguments.");
ee8c45689526ca973407cbb77bce7b96a062c40bLennart Poettering                        return -EINVAL;
ee8c45689526ca973407cbb77bce7b96a062c40bLennart Poettering                }
ee8c45689526ca973407cbb77bce7b96a062c40bLennart Poettering
ee8c45689526ca973407cbb77bce7b96a062c40bLennart Poettering                break;
ee8c45689526ca973407cbb77bce7b96a062c40bLennart Poettering
ee8c45689526ca973407cbb77bce7b96a062c40bLennart Poettering        case MORE:
ee8c45689526ca973407cbb77bce7b96a062c40bLennart Poettering                if (left < verbs[i].argc) {
ee8c45689526ca973407cbb77bce7b96a062c40bLennart Poettering                        log_error("Too few arguments.");
ee8c45689526ca973407cbb77bce7b96a062c40bLennart Poettering                        return -EINVAL;
ee8c45689526ca973407cbb77bce7b96a062c40bLennart Poettering                }
ee8c45689526ca973407cbb77bce7b96a062c40bLennart Poettering
ee8c45689526ca973407cbb77bce7b96a062c40bLennart Poettering                break;
ee8c45689526ca973407cbb77bce7b96a062c40bLennart Poettering
ee8c45689526ca973407cbb77bce7b96a062c40bLennart Poettering        case LESS:
ee8c45689526ca973407cbb77bce7b96a062c40bLennart Poettering                if (left > verbs[i].argc) {
ee8c45689526ca973407cbb77bce7b96a062c40bLennart Poettering                        log_error("Too many arguments.");
ee8c45689526ca973407cbb77bce7b96a062c40bLennart Poettering                        return -EINVAL;
ee8c45689526ca973407cbb77bce7b96a062c40bLennart Poettering                }
ee8c45689526ca973407cbb77bce7b96a062c40bLennart Poettering
ee8c45689526ca973407cbb77bce7b96a062c40bLennart Poettering                break;
ee8c45689526ca973407cbb77bce7b96a062c40bLennart Poettering
ee8c45689526ca973407cbb77bce7b96a062c40bLennart Poettering        default:
ee8c45689526ca973407cbb77bce7b96a062c40bLennart Poettering                assert_not_reached("Unknown comparison operator.");
ee8c45689526ca973407cbb77bce7b96a062c40bLennart Poettering        }
ee8c45689526ca973407cbb77bce7b96a062c40bLennart Poettering
ee8c45689526ca973407cbb77bce7b96a062c40bLennart Poettering        return verbs[i].dispatch(argv + optind, left);
ee8c45689526ca973407cbb77bce7b96a062c40bLennart Poettering}
ee8c45689526ca973407cbb77bce7b96a062c40bLennart Poettering
ee8c45689526ca973407cbb77bce7b96a062c40bLennart Poetteringint main(int argc, char* argv[]) {
ee8c45689526ca973407cbb77bce7b96a062c40bLennart Poettering        int r;
ee8c45689526ca973407cbb77bce7b96a062c40bLennart Poettering
ee8c45689526ca973407cbb77bce7b96a062c40bLennart Poettering        log_parse_environment();
ee8c45689526ca973407cbb77bce7b96a062c40bLennart Poettering        log_open();
ee8c45689526ca973407cbb77bce7b96a062c40bLennart Poettering
ee8c45689526ca973407cbb77bce7b96a062c40bLennart Poettering        r = parse_argv(argc, argv);
ee8c45689526ca973407cbb77bce7b96a062c40bLennart Poettering        if (r <= 0)
ee8c45689526ca973407cbb77bce7b96a062c40bLennart Poettering                goto finish;
ee8c45689526ca973407cbb77bce7b96a062c40bLennart Poettering
ee8c45689526ca973407cbb77bce7b96a062c40bLennart Poettering        r = networkctl_main(argc, argv);
ee8c45689526ca973407cbb77bce7b96a062c40bLennart Poettering
ee8c45689526ca973407cbb77bce7b96a062c40bLennart Poetteringfinish:
ee8c45689526ca973407cbb77bce7b96a062c40bLennart Poettering        pager_close();
ee8c45689526ca973407cbb77bce7b96a062c40bLennart Poettering
ee8c45689526ca973407cbb77bce7b96a062c40bLennart Poettering        return r < 0 ? EXIT_FAILURE : EXIT_SUCCESS;
ee8c45689526ca973407cbb77bce7b96a062c40bLennart Poettering}