4ba93280223ceb5de1bcedb196c38252f334521aLennart Poettering

4ba93280223ceb5de1bcedb196c38252f334521aLennart Poettering

4ba93280223ceb5de1bcedb196c38252f334521aLennart Poettering#include <stdbool.h>

4ba93280223ceb5de1bcedb196c38252f334521aLennart Poettering#include <getopt.h>

4ba93280223ceb5de1bcedb196c38252f334521aLennart Poettering

4ba93280223ceb5de1bcedb196c38252f334521aLennart Poettering#include "sd-network.h"

4ba93280223ceb5de1bcedb196c38252f334521aLennart Poettering#include "sd-rtnl.h"

4ba93280223ceb5de1bcedb196c38252f334521aLennart Poettering#include "libudev.h"

4ba93280223ceb5de1bcedb196c38252f334521aLennart Poettering

4ba93280223ceb5de1bcedb196c38252f334521aLennart Poettering#include "build.h"

4ba93280223ceb5de1bcedb196c38252f334521aLennart Poettering#include "util.h"

023fb90b83871a15ef7f57e8cd126e3426f99b9eLennart Poettering#include "pager.h"

023fb90b83871a15ef7f57e8cd126e3426f99b9eLennart Poettering#include "rtnl-util.h"

04d39279245834494baccfdb9349db8bf80abd13Lennart Poettering#include "udev-util.h"

023fb90b83871a15ef7f57e8cd126e3426f99b9eLennart Poettering#include "arphrd-list.h"

023fb90b83871a15ef7f57e8cd126e3426f99b9eLennart Poettering#include "local-addresses.h"

023fb90b83871a15ef7f57e8cd126e3426f99b9eLennart Poettering

023fb90b83871a15ef7f57e8cd126e3426f99b9eLennart Poetteringstatic bool arg_no_pager = false;

023fb90b83871a15ef7f57e8cd126e3426f99b9eLennart Poetteringstatic bool arg_legend = true;

023fb90b83871a15ef7f57e8cd126e3426f99b9eLennart Poetteringstatic bool arg_all = false;

023fb90b83871a15ef7f57e8cd126e3426f99b9eLennart Poettering

023fb90b83871a15ef7f57e8cd126e3426f99b9eLennart Poetteringstatic void pager_open_if_enabled(void) {

023fb90b83871a15ef7f57e8cd126e3426f99b9eLennart Poettering

023fb90b83871a15ef7f57e8cd126e3426f99b9eLennart Poettering if (arg_no_pager)

023fb90b83871a15ef7f57e8cd126e3426f99b9eLennart Poettering return;

023fb90b83871a15ef7f57e8cd126e3426f99b9eLennart Poettering

023fb90b83871a15ef7f57e8cd126e3426f99b9eLennart Poettering pager_open(false);

023fb90b83871a15ef7f57e8cd126e3426f99b9eLennart Poettering}

023fb90b83871a15ef7f57e8cd126e3426f99b9eLennart Poettering

023fb90b83871a15ef7f57e8cd126e3426f99b9eLennart Poetteringstatic int link_get_type_string(int iftype, struct udev_device *d, char **ret) {

023fb90b83871a15ef7f57e8cd126e3426f99b9eLennart Poettering const char *t;

023fb90b83871a15ef7f57e8cd126e3426f99b9eLennart Poettering char *p;

023fb90b83871a15ef7f57e8cd126e3426f99b9eLennart Poettering

023fb90b83871a15ef7f57e8cd126e3426f99b9eLennart Poettering if (iftype == ARPHRD_ETHER && d) {

023fb90b83871a15ef7f57e8cd126e3426f99b9eLennart Poettering const char *devtype, *id = NULL;

023fb90b83871a15ef7f57e8cd126e3426f99b9eLennart Poettering /* WLANs have iftype ARPHRD_ETHER, but we want

023fb90b83871a15ef7f57e8cd126e3426f99b9eLennart Poettering

023fb90b83871a15ef7f57e8cd126e3426f99b9eLennart Poettering devtype = udev_device_get_devtype(d);

023fb90b83871a15ef7f57e8cd126e3426f99b9eLennart Poettering if (streq_ptr(devtype, "wlan"))

023fb90b83871a15ef7f57e8cd126e3426f99b9eLennart Poettering id = "wlan";

023fb90b83871a15ef7f57e8cd126e3426f99b9eLennart Poettering else if (streq_ptr(devtype, "wwan"))

023fb90b83871a15ef7f57e8cd126e3426f99b9eLennart Poettering id = "wwan";

023fb90b83871a15ef7f57e8cd126e3426f99b9eLennart Poettering

023fb90b83871a15ef7f57e8cd126e3426f99b9eLennart Poettering if (id) {

04d39279245834494baccfdb9349db8bf80abd13Lennart Poettering p = strdup(id);

04d39279245834494baccfdb9349db8bf80abd13Lennart Poettering if (!p)

023fb90b83871a15ef7f57e8cd126e3426f99b9eLennart Poettering return -ENOMEM;

04d39279245834494baccfdb9349db8bf80abd13Lennart Poettering

04d39279245834494baccfdb9349db8bf80abd13Lennart Poettering *ret = p;

04d39279245834494baccfdb9349db8bf80abd13Lennart Poettering return 1;

04d39279245834494baccfdb9349db8bf80abd13Lennart Poettering }

04d39279245834494baccfdb9349db8bf80abd13Lennart Poettering }

04d39279245834494baccfdb9349db8bf80abd13Lennart Poettering

04d39279245834494baccfdb9349db8bf80abd13Lennart Poettering t = arphrd_to_name(iftype);

04d39279245834494baccfdb9349db8bf80abd13Lennart Poettering if (!t) {

04d39279245834494baccfdb9349db8bf80abd13Lennart Poettering *ret = NULL;

023fb90b83871a15ef7f57e8cd126e3426f99b9eLennart Poettering return 0;

023fb90b83871a15ef7f57e8cd126e3426f99b9eLennart Poettering }

023fb90b83871a15ef7f57e8cd126e3426f99b9eLennart Poettering

04d39279245834494baccfdb9349db8bf80abd13Lennart Poettering p = strdup(t);

023fb90b83871a15ef7f57e8cd126e3426f99b9eLennart Poettering if (!p)

04d39279245834494baccfdb9349db8bf80abd13Lennart Poettering return -ENOMEM;

023fb90b83871a15ef7f57e8cd126e3426f99b9eLennart Poettering

04d39279245834494baccfdb9349db8bf80abd13Lennart Poettering ascii_strlower(p);

04d39279245834494baccfdb9349db8bf80abd13Lennart Poettering *ret = p;

04d39279245834494baccfdb9349db8bf80abd13Lennart Poettering

023fb90b83871a15ef7f57e8cd126e3426f99b9eLennart Poettering return 0;

023fb90b83871a15ef7f57e8cd126e3426f99b9eLennart Poettering}

04d39279245834494baccfdb9349db8bf80abd13Lennart Poettering

04d39279245834494baccfdb9349db8bf80abd13Lennart Poetteringstatic int list_links(char **args, unsigned n) {

04d39279245834494baccfdb9349db8bf80abd13Lennart Poettering _cleanup_rtnl_message_unref_ sd_rtnl_message *req = NULL, *reply = NULL;

04d39279245834494baccfdb9349db8bf80abd13Lennart Poettering _cleanup_udev_unref_ struct udev *udev = NULL;

04d39279245834494baccfdb9349db8bf80abd13Lennart Poettering _cleanup_rtnl_unref_ sd_rtnl *rtnl = NULL;

04d39279245834494baccfdb9349db8bf80abd13Lennart Poettering sd_rtnl_message *i;

023fb90b83871a15ef7f57e8cd126e3426f99b9eLennart Poettering unsigned c = 0;

023fb90b83871a15ef7f57e8cd126e3426f99b9eLennart Poettering int r;

4ba93280223ceb5de1bcedb196c38252f334521aLennart Poettering

023fb90b83871a15ef7f57e8cd126e3426f99b9eLennart Poettering pager_open_if_enabled();

4ba93280223ceb5de1bcedb196c38252f334521aLennart Poettering

023fb90b83871a15ef7f57e8cd126e3426f99b9eLennart Poettering r = sd_rtnl_open(&rtnl, 0);

023fb90b83871a15ef7f57e8cd126e3426f99b9eLennart Poettering if (r < 0) {

023fb90b83871a15ef7f57e8cd126e3426f99b9eLennart Poettering log_error("Failed to connect to netlink: %s", strerror(-r));

023fb90b83871a15ef7f57e8cd126e3426f99b9eLennart Poettering return r;

4ba93280223ceb5de1bcedb196c38252f334521aLennart Poettering }

023fb90b83871a15ef7f57e8cd126e3426f99b9eLennart Poettering

4ba93280223ceb5de1bcedb196c38252f334521aLennart Poettering udev = udev_new();

023fb90b83871a15ef7f57e8cd126e3426f99b9eLennart Poettering if (!udev) {

023fb90b83871a15ef7f57e8cd126e3426f99b9eLennart Poettering log_error("Failed to connect to udev: %m");

4ba93280223ceb5de1bcedb196c38252f334521aLennart Poettering return -errno;

023fb90b83871a15ef7f57e8cd126e3426f99b9eLennart Poettering }

023fb90b83871a15ef7f57e8cd126e3426f99b9eLennart Poettering

023fb90b83871a15ef7f57e8cd126e3426f99b9eLennart Poettering r = sd_rtnl_message_new_link(rtnl, &req, RTM_GETLINK, 0);

023fb90b83871a15ef7f57e8cd126e3426f99b9eLennart Poettering if (r < 0)

023fb90b83871a15ef7f57e8cd126e3426f99b9eLennart Poettering return rtnl_log_create_error(r);

4ba93280223ceb5de1bcedb196c38252f334521aLennart Poettering

023fb90b83871a15ef7f57e8cd126e3426f99b9eLennart Poettering r = sd_rtnl_message_request_dump(req, true);

023fb90b83871a15ef7f57e8cd126e3426f99b9eLennart Poettering if (r < 0)

023fb90b83871a15ef7f57e8cd126e3426f99b9eLennart Poettering return rtnl_log_create_error(r);

023fb90b83871a15ef7f57e8cd126e3426f99b9eLennart Poettering

023fb90b83871a15ef7f57e8cd126e3426f99b9eLennart Poettering r = sd_rtnl_call(rtnl, req, 0, &reply);

023fb90b83871a15ef7f57e8cd126e3426f99b9eLennart Poettering if (r < 0) {

023fb90b83871a15ef7f57e8cd126e3426f99b9eLennart Poettering log_error("Failed to enumerate links: %s", strerror(-r));

023fb90b83871a15ef7f57e8cd126e3426f99b9eLennart Poettering return r;

023fb90b83871a15ef7f57e8cd126e3426f99b9eLennart Poettering }

023fb90b83871a15ef7f57e8cd126e3426f99b9eLennart Poettering

023fb90b83871a15ef7f57e8cd126e3426f99b9eLennart Poettering if (arg_legend)

023fb90b83871a15ef7f57e8cd126e3426f99b9eLennart Poettering printf("%3s %-16s %-10s %-10s %-10s\n", "IDX", "LINK", "TYPE", "STATE", "OPERATIONAL");

023fb90b83871a15ef7f57e8cd126e3426f99b9eLennart Poettering

023fb90b83871a15ef7f57e8cd126e3426f99b9eLennart Poettering for (i = reply; i; i = sd_rtnl_message_next(i)) {

023fb90b83871a15ef7f57e8cd126e3426f99b9eLennart Poettering _cleanup_free_ char *state = NULL, *operational_state = NULL;

023fb90b83871a15ef7f57e8cd126e3426f99b9eLennart Poettering _cleanup_udev_device_unref_ struct udev_device *d = NULL;

023fb90b83871a15ef7f57e8cd126e3426f99b9eLennart Poettering char devid[2 + DECIMAL_STR_MAX(int)];

023fb90b83871a15ef7f57e8cd126e3426f99b9eLennart Poettering _cleanup_free_ char *t = NULL;

023fb90b83871a15ef7f57e8cd126e3426f99b9eLennart Poettering const char *name;

023fb90b83871a15ef7f57e8cd126e3426f99b9eLennart Poettering unsigned iftype;

023fb90b83871a15ef7f57e8cd126e3426f99b9eLennart Poettering uint16_t type;

4ba93280223ceb5de1bcedb196c38252f334521aLennart Poettering int ifindex;

4ba93280223ceb5de1bcedb196c38252f334521aLennart Poettering

023fb90b83871a15ef7f57e8cd126e3426f99b9eLennart Poettering r = sd_rtnl_message_get_type(i, &type);

4ba93280223ceb5de1bcedb196c38252f334521aLennart Poettering if (r < 0)

023fb90b83871a15ef7f57e8cd126e3426f99b9eLennart Poettering return rtnl_log_parse_error(r);

023fb90b83871a15ef7f57e8cd126e3426f99b9eLennart Poettering

4ba93280223ceb5de1bcedb196c38252f334521aLennart Poettering if (type != RTM_NEWLINK)

023fb90b83871a15ef7f57e8cd126e3426f99b9eLennart Poettering continue;

023fb90b83871a15ef7f57e8cd126e3426f99b9eLennart Poettering

023fb90b83871a15ef7f57e8cd126e3426f99b9eLennart Poettering r = sd_rtnl_message_link_get_ifindex(i, &ifindex);

023fb90b83871a15ef7f57e8cd126e3426f99b9eLennart Poettering if (r < 0)

023fb90b83871a15ef7f57e8cd126e3426f99b9eLennart Poettering return rtnl_log_parse_error(r);

4ba93280223ceb5de1bcedb196c38252f334521aLennart Poettering

023fb90b83871a15ef7f57e8cd126e3426f99b9eLennart Poettering r = sd_rtnl_message_read_string(i, IFLA_IFNAME, &name);

023fb90b83871a15ef7f57e8cd126e3426f99b9eLennart Poettering if (r < 0)

023fb90b83871a15ef7f57e8cd126e3426f99b9eLennart Poettering return rtnl_log_parse_error(r);

023fb90b83871a15ef7f57e8cd126e3426f99b9eLennart Poettering

023fb90b83871a15ef7f57e8cd126e3426f99b9eLennart Poettering r = sd_rtnl_message_link_get_type(i, &iftype);

023fb90b83871a15ef7f57e8cd126e3426f99b9eLennart Poettering if (r < 0)

023fb90b83871a15ef7f57e8cd126e3426f99b9eLennart Poettering return rtnl_log_parse_error(r);

023fb90b83871a15ef7f57e8cd126e3426f99b9eLennart Poettering

023fb90b83871a15ef7f57e8cd126e3426f99b9eLennart Poettering sd_network_get_link_state(ifindex, &state);

023fb90b83871a15ef7f57e8cd126e3426f99b9eLennart Poettering sd_network_get_link_operational_state(ifindex, &operational_state);

4ba93280223ceb5de1bcedb196c38252f334521aLennart Poettering

4ba93280223ceb5de1bcedb196c38252f334521aLennart Poettering sprintf(devid, "n%i", ifindex);

023fb90b83871a15ef7f57e8cd126e3426f99b9eLennart Poettering d = udev_device_new_from_device_id(udev, devid);

4ba93280223ceb5de1bcedb196c38252f334521aLennart Poettering

023fb90b83871a15ef7f57e8cd126e3426f99b9eLennart Poettering link_get_type_string(iftype, d, &t);

023fb90b83871a15ef7f57e8cd126e3426f99b9eLennart Poettering

4ba93280223ceb5de1bcedb196c38252f334521aLennart Poettering printf("%3i %-16s %-10s %-10s %-10s\n", ifindex, name, strna(t), strna(state), strna(operational_state));

023fb90b83871a15ef7f57e8cd126e3426f99b9eLennart Poettering c++;

023fb90b83871a15ef7f57e8cd126e3426f99b9eLennart Poettering }

023fb90b83871a15ef7f57e8cd126e3426f99b9eLennart Poettering

023fb90b83871a15ef7f57e8cd126e3426f99b9eLennart Poettering if (arg_legend)

023fb90b83871a15ef7f57e8cd126e3426f99b9eLennart Poettering printf("\n%u links listed.\n", c);

4ba93280223ceb5de1bcedb196c38252f334521aLennart Poettering

023fb90b83871a15ef7f57e8cd126e3426f99b9eLennart Poettering return 0;

023fb90b83871a15ef7f57e8cd126e3426f99b9eLennart Poettering}

023fb90b83871a15ef7f57e8cd126e3426f99b9eLennart Poettering

023fb90b83871a15ef7f57e8cd126e3426f99b9eLennart Poetteringstatic int dump_addresses(sd_rtnl *rtnl, const char *prefix, int ifindex) {

023fb90b83871a15ef7f57e8cd126e3426f99b9eLennart Poettering _cleanup_free_ struct local_address *local = NULL;

4ba93280223ceb5de1bcedb196c38252f334521aLennart Poettering int r, n, i;

023fb90b83871a15ef7f57e8cd126e3426f99b9eLennart Poettering

04d39279245834494baccfdb9349db8bf80abd13Lennart Poettering n = local_addresses(rtnl, ifindex, &local);

023fb90b83871a15ef7f57e8cd126e3426f99b9eLennart Poettering if (n < 0)

023fb90b83871a15ef7f57e8cd126e3426f99b9eLennart Poettering return n;

04d39279245834494baccfdb9349db8bf80abd13Lennart Poettering

023fb90b83871a15ef7f57e8cd126e3426f99b9eLennart Poettering for (i = 0; i < n; i++) {

023fb90b83871a15ef7f57e8cd126e3426f99b9eLennart Poettering _cleanup_free_ char *pretty = NULL;

023fb90b83871a15ef7f57e8cd126e3426f99b9eLennart Poettering

4ba93280223ceb5de1bcedb196c38252f334521aLennart Poettering r = in_addr_to_string(local[i].family, &local[i].address, &pretty);

023fb90b83871a15ef7f57e8cd126e3426f99b9eLennart Poettering if (r < 0)

4ba93280223ceb5de1bcedb196c38252f334521aLennart Poettering return r;

023fb90b83871a15ef7f57e8cd126e3426f99b9eLennart Poettering

023fb90b83871a15ef7f57e8cd126e3426f99b9eLennart Poettering printf("%*s%s\n",

4ba93280223ceb5de1bcedb196c38252f334521aLennart Poettering (int) strlen(prefix),

023fb90b83871a15ef7f57e8cd126e3426f99b9eLennart Poettering i == 0 ? prefix : "",

023fb90b83871a15ef7f57e8cd126e3426f99b9eLennart Poettering pretty);

023fb90b83871a15ef7f57e8cd126e3426f99b9eLennart Poettering }

023fb90b83871a15ef7f57e8cd126e3426f99b9eLennart Poettering

023fb90b83871a15ef7f57e8cd126e3426f99b9eLennart Poettering return 0;

023fb90b83871a15ef7f57e8cd126e3426f99b9eLennart Poettering}

4ba93280223ceb5de1bcedb196c38252f334521aLennart Poettering

023fb90b83871a15ef7f57e8cd126e3426f99b9eLennart Poetteringstatic void dump_list(const char *prefix, char **l) {

023fb90b83871a15ef7f57e8cd126e3426f99b9eLennart Poettering char **i;

4ba93280223ceb5de1bcedb196c38252f334521aLennart Poettering

4ba93280223ceb5de1bcedb196c38252f334521aLennart Poettering STRV_FOREACH(i, l) {

023fb90b83871a15ef7f57e8cd126e3426f99b9eLennart Poettering printf("%*s%s\n",

023fb90b83871a15ef7f57e8cd126e3426f99b9eLennart Poettering (int) strlen(prefix),

023fb90b83871a15ef7f57e8cd126e3426f99b9eLennart Poettering i == l ? prefix : "",

023fb90b83871a15ef7f57e8cd126e3426f99b9eLennart Poettering *i);

4ba93280223ceb5de1bcedb196c38252f334521aLennart Poettering }

023fb90b83871a15ef7f57e8cd126e3426f99b9eLennart Poettering}

023fb90b83871a15ef7f57e8cd126e3426f99b9eLennart Poettering

023fb90b83871a15ef7f57e8cd126e3426f99b9eLennart Poetteringstatic int link_status_one(sd_rtnl *rtnl, struct udev *udev, const char *name) {

023fb90b83871a15ef7f57e8cd126e3426f99b9eLennart Poettering _cleanup_strv_free_ char **dns = NULL, **ntp = NULL;

023fb90b83871a15ef7f57e8cd126e3426f99b9eLennart Poettering _cleanup_free_ char *state = NULL, *operational_state = NULL;

023fb90b83871a15ef7f57e8cd126e3426f99b9eLennart Poettering _cleanup_rtnl_message_unref_ sd_rtnl_message *req = NULL, *reply = NULL;

4ba93280223ceb5de1bcedb196c38252f334521aLennart Poettering _cleanup_udev_device_unref_ struct udev_device *d = NULL;

023fb90b83871a15ef7f57e8cd126e3426f99b9eLennart Poettering char devid[2 + DECIMAL_STR_MAX(int)];

023fb90b83871a15ef7f57e8cd126e3426f99b9eLennart Poettering _cleanup_free_ char *t = NULL;

023fb90b83871a15ef7f57e8cd126e3426f99b9eLennart Poettering const char *driver = NULL, *path = NULL, *vendor = NULL, *model = NULL;

023fb90b83871a15ef7f57e8cd126e3426f99b9eLennart Poettering struct ether_addr e;

4ba93280223ceb5de1bcedb196c38252f334521aLennart Poettering unsigned iftype;

023fb90b83871a15ef7f57e8cd126e3426f99b9eLennart Poettering int r, ifindex;

023fb90b83871a15ef7f57e8cd126e3426f99b9eLennart Poettering bool have_mac;

4ba93280223ceb5de1bcedb196c38252f334521aLennart Poettering uint32_t mtu;

023fb90b83871a15ef7f57e8cd126e3426f99b9eLennart Poettering

023fb90b83871a15ef7f57e8cd126e3426f99b9eLennart Poettering assert(rtnl);

4ba93280223ceb5de1bcedb196c38252f334521aLennart Poettering assert(udev);

023fb90b83871a15ef7f57e8cd126e3426f99b9eLennart Poettering assert(name);

023fb90b83871a15ef7f57e8cd126e3426f99b9eLennart Poettering

023fb90b83871a15ef7f57e8cd126e3426f99b9eLennart Poettering if (safe_atoi(name, &ifindex) >= 0 && ifindex > 0)

023fb90b83871a15ef7f57e8cd126e3426f99b9eLennart Poettering r = sd_rtnl_message_new_link(rtnl, &req, RTM_GETLINK, ifindex);

023fb90b83871a15ef7f57e8cd126e3426f99b9eLennart Poettering else {

04d39279245834494baccfdb9349db8bf80abd13Lennart Poettering r = sd_rtnl_message_new_link(rtnl, &req, RTM_GETLINK, 0);

023fb90b83871a15ef7f57e8cd126e3426f99b9eLennart Poettering if (r < 0)

023fb90b83871a15ef7f57e8cd126e3426f99b9eLennart Poettering return rtnl_log_create_error(r);

04d39279245834494baccfdb9349db8bf80abd13Lennart Poettering

023fb90b83871a15ef7f57e8cd126e3426f99b9eLennart Poettering r = sd_rtnl_message_append_string(req, IFLA_IFNAME, name);

023fb90b83871a15ef7f57e8cd126e3426f99b9eLennart Poettering }

04d39279245834494baccfdb9349db8bf80abd13Lennart Poettering

023fb90b83871a15ef7f57e8cd126e3426f99b9eLennart Poettering if (r < 0)

023fb90b83871a15ef7f57e8cd126e3426f99b9eLennart Poettering return rtnl_log_create_error(r);

04d39279245834494baccfdb9349db8bf80abd13Lennart Poettering

023fb90b83871a15ef7f57e8cd126e3426f99b9eLennart Poettering r = sd_rtnl_call(rtnl, req, 0, &reply);

023fb90b83871a15ef7f57e8cd126e3426f99b9eLennart Poettering if (r < 0) {

04d39279245834494baccfdb9349db8bf80abd13Lennart Poettering log_error("Failed to query link: %s", strerror(-r));

023fb90b83871a15ef7f57e8cd126e3426f99b9eLennart Poettering return r;

023fb90b83871a15ef7f57e8cd126e3426f99b9eLennart Poettering }

023fb90b83871a15ef7f57e8cd126e3426f99b9eLennart Poettering

023fb90b83871a15ef7f57e8cd126e3426f99b9eLennart Poettering r = sd_rtnl_message_link_get_ifindex(reply, &ifindex);

023fb90b83871a15ef7f57e8cd126e3426f99b9eLennart Poettering if (r < 0)

04d39279245834494baccfdb9349db8bf80abd13Lennart Poettering return rtnl_log_parse_error(r);

023fb90b83871a15ef7f57e8cd126e3426f99b9eLennart Poettering

023fb90b83871a15ef7f57e8cd126e3426f99b9eLennart Poettering r = sd_rtnl_message_read_string(reply, IFLA_IFNAME, &name);

04d39279245834494baccfdb9349db8bf80abd13Lennart Poettering if (r < 0)

023fb90b83871a15ef7f57e8cd126e3426f99b9eLennart Poettering return rtnl_log_parse_error(r);

023fb90b83871a15ef7f57e8cd126e3426f99b9eLennart Poettering

04d39279245834494baccfdb9349db8bf80abd13Lennart Poettering r = sd_rtnl_message_link_get_type(reply, &iftype);

023fb90b83871a15ef7f57e8cd126e3426f99b9eLennart Poettering if (r < 0)

023fb90b83871a15ef7f57e8cd126e3426f99b9eLennart Poettering return rtnl_log_parse_error(r);

04d39279245834494baccfdb9349db8bf80abd13Lennart Poettering

023fb90b83871a15ef7f57e8cd126e3426f99b9eLennart Poettering have_mac = sd_rtnl_message_read_ether_addr(reply, IFLA_ADDRESS, &e) >= 0;

023fb90b83871a15ef7f57e8cd126e3426f99b9eLennart Poettering

023fb90b83871a15ef7f57e8cd126e3426f99b9eLennart Poettering if (have_mac) {

023fb90b83871a15ef7f57e8cd126e3426f99b9eLennart Poettering const uint8_t *p;

023fb90b83871a15ef7f57e8cd126e3426f99b9eLennart Poettering bool all_zeroes = true;

04d39279245834494baccfdb9349db8bf80abd13Lennart Poettering

023fb90b83871a15ef7f57e8cd126e3426f99b9eLennart Poettering for (p = (uint8_t*) &e; p < (uint8_t*) &e + sizeof(e); p++)

023fb90b83871a15ef7f57e8cd126e3426f99b9eLennart Poettering if (*p != 0) {

04d39279245834494baccfdb9349db8bf80abd13Lennart Poettering all_zeroes = false;

023fb90b83871a15ef7f57e8cd126e3426f99b9eLennart Poettering break;

023fb90b83871a15ef7f57e8cd126e3426f99b9eLennart Poettering }

04d39279245834494baccfdb9349db8bf80abd13Lennart Poettering

023fb90b83871a15ef7f57e8cd126e3426f99b9eLennart Poettering if (all_zeroes)

023fb90b83871a15ef7f57e8cd126e3426f99b9eLennart Poettering have_mac = false;

023fb90b83871a15ef7f57e8cd126e3426f99b9eLennart Poettering }

04d39279245834494baccfdb9349db8bf80abd13Lennart Poettering

023fb90b83871a15ef7f57e8cd126e3426f99b9eLennart Poettering sd_rtnl_message_read_u32(reply, IFLA_MTU, &mtu);

023fb90b83871a15ef7f57e8cd126e3426f99b9eLennart Poettering

023fb90b83871a15ef7f57e8cd126e3426f99b9eLennart Poettering sd_network_get_link_state(ifindex, &state);

023fb90b83871a15ef7f57e8cd126e3426f99b9eLennart Poettering sd_network_get_link_operational_state(ifindex, &operational_state);

023fb90b83871a15ef7f57e8cd126e3426f99b9eLennart Poettering

023fb90b83871a15ef7f57e8cd126e3426f99b9eLennart Poettering sd_network_get_link_dns(ifindex, &dns);

023fb90b83871a15ef7f57e8cd126e3426f99b9eLennart Poettering sd_network_get_link_ntp(ifindex, &ntp);

023fb90b83871a15ef7f57e8cd126e3426f99b9eLennart Poettering

023fb90b83871a15ef7f57e8cd126e3426f99b9eLennart Poettering sprintf(devid, "n%i", ifindex);

4ba93280223ceb5de1bcedb196c38252f334521aLennart Poettering d = udev_device_new_from_device_id(udev, devid);

04d39279245834494baccfdb9349db8bf80abd13Lennart Poettering

023fb90b83871a15ef7f57e8cd126e3426f99b9eLennart Poettering link_get_type_string(iftype, d, &t);

023fb90b83871a15ef7f57e8cd126e3426f99b9eLennart Poettering

04d39279245834494baccfdb9349db8bf80abd13Lennart Poettering if (d) {

04d39279245834494baccfdb9349db8bf80abd13Lennart Poettering driver = udev_device_get_property_value(d, "ID_NET_DRIVER");

04d39279245834494baccfdb9349db8bf80abd13Lennart Poettering path = udev_device_get_property_value(d, "ID_PATH");

023fb90b83871a15ef7f57e8cd126e3426f99b9eLennart Poettering

023fb90b83871a15ef7f57e8cd126e3426f99b9eLennart Poettering vendor = udev_device_get_property_value(d, "ID_VENDOR_FROM_DATABASE");

023fb90b83871a15ef7f57e8cd126e3426f99b9eLennart Poettering if (!vendor)

023fb90b83871a15ef7f57e8cd126e3426f99b9eLennart Poettering vendor = udev_device_get_property_value(d, "ID_VENDOR");

023fb90b83871a15ef7f57e8cd126e3426f99b9eLennart Poettering

023fb90b83871a15ef7f57e8cd126e3426f99b9eLennart Poettering model = udev_device_get_property_value(d, "ID_MODEL_FROM_DATABASE");

023fb90b83871a15ef7f57e8cd126e3426f99b9eLennart Poettering if (!model)

023fb90b83871a15ef7f57e8cd126e3426f99b9eLennart Poettering model = udev_device_get_property_value(d, "ID_MODEL");

023fb90b83871a15ef7f57e8cd126e3426f99b9eLennart Poettering }

023fb90b83871a15ef7f57e8cd126e3426f99b9eLennart Poettering

023fb90b83871a15ef7f57e8cd126e3426f99b9eLennart Poettering printf("%i: %s\n", ifindex, name);

023fb90b83871a15ef7f57e8cd126e3426f99b9eLennart Poettering

023fb90b83871a15ef7f57e8cd126e3426f99b9eLennart Poettering printf(" Type: %s\n"

023fb90b83871a15ef7f57e8cd126e3426f99b9eLennart Poettering " State: %s (%s)\n",

023fb90b83871a15ef7f57e8cd126e3426f99b9eLennart Poettering strna(t),

023fb90b83871a15ef7f57e8cd126e3426f99b9eLennart Poettering strna(operational_state),

023fb90b83871a15ef7f57e8cd126e3426f99b9eLennart Poettering strna(state));

023fb90b83871a15ef7f57e8cd126e3426f99b9eLennart Poettering

023fb90b83871a15ef7f57e8cd126e3426f99b9eLennart Poettering if (path)

023fb90b83871a15ef7f57e8cd126e3426f99b9eLennart Poettering printf(" Path: %s\n", path);

023fb90b83871a15ef7f57e8cd126e3426f99b9eLennart Poettering if (driver)

023fb90b83871a15ef7f57e8cd126e3426f99b9eLennart Poettering printf(" Driver: %s\n", driver);

023fb90b83871a15ef7f57e8cd126e3426f99b9eLennart Poettering if (vendor)

023fb90b83871a15ef7f57e8cd126e3426f99b9eLennart Poettering printf(" Vendor: %s\n", vendor);

023fb90b83871a15ef7f57e8cd126e3426f99b9eLennart Poettering if (model)

023fb90b83871a15ef7f57e8cd126e3426f99b9eLennart Poettering printf(" Model: %s\n", model);

eaf73b061604c028aa28f960870a9b46aab2f76aLuke Shumaker

04d39279245834494baccfdb9349db8bf80abd13Lennart Poettering if (have_mac)

04d39279245834494baccfdb9349db8bf80abd13Lennart Poettering printf(" HW Address: %s\n", ether_ntoa(&e));

023fb90b83871a15ef7f57e8cd126e3426f99b9eLennart Poettering

023fb90b83871a15ef7f57e8cd126e3426f99b9eLennart Poettering if (mtu > 0)

04d39279245834494baccfdb9349db8bf80abd13Lennart Poettering printf(" MTU: %u\n", mtu);

023fb90b83871a15ef7f57e8cd126e3426f99b9eLennart Poettering

023fb90b83871a15ef7f57e8cd126e3426f99b9eLennart Poettering dump_addresses(rtnl, " Address: ", ifindex);

023fb90b83871a15ef7f57e8cd126e3426f99b9eLennart Poettering

90d14d2015dda79c7b465b74dd3aaf2dfc25d43cLuke Shumaker if (!strv_isempty(dns))

023fb90b83871a15ef7f57e8cd126e3426f99b9eLennart Poettering dump_list(" DNS: ", dns);

90d14d2015dda79c7b465b74dd3aaf2dfc25d43cLuke Shumaker if (!strv_isempty(ntp))

90d14d2015dda79c7b465b74dd3aaf2dfc25d43cLuke Shumaker dump_list(" NTP: ", ntp);

90d14d2015dda79c7b465b74dd3aaf2dfc25d43cLuke Shumaker

023fb90b83871a15ef7f57e8cd126e3426f99b9eLennart Poettering return 0;

023fb90b83871a15ef7f57e8cd126e3426f99b9eLennart Poettering}

023fb90b83871a15ef7f57e8cd126e3426f99b9eLennart Poettering

023fb90b83871a15ef7f57e8cd126e3426f99b9eLennart Poetteringstatic int link_status(char **args, unsigned n) {

023fb90b83871a15ef7f57e8cd126e3426f99b9eLennart Poettering _cleanup_udev_unref_ struct udev *udev = NULL;

023fb90b83871a15ef7f57e8cd126e3426f99b9eLennart Poettering _cleanup_rtnl_unref_ sd_rtnl *rtnl = NULL;

90d14d2015dda79c7b465b74dd3aaf2dfc25d43cLuke Shumaker char **name;

023fb90b83871a15ef7f57e8cd126e3426f99b9eLennart Poettering int r;

023fb90b83871a15ef7f57e8cd126e3426f99b9eLennart Poettering

90d14d2015dda79c7b465b74dd3aaf2dfc25d43cLuke Shumaker if (n <= 1 && !arg_all) {

04d39279245834494baccfdb9349db8bf80abd13Lennart Poettering _cleanup_free_ char *operational_state = NULL;

04d39279245834494baccfdb9349db8bf80abd13Lennart Poettering _cleanup_strv_free_ char **dns = NULL, **ntp = NULL;

023fb90b83871a15ef7f57e8cd126e3426f99b9eLennart Poettering

023fb90b83871a15ef7f57e8cd126e3426f99b9eLennart Poettering sd_network_get_operational_state(&operational_state);

023fb90b83871a15ef7f57e8cd126e3426f99b9eLennart Poettering if (operational_state)

04d39279245834494baccfdb9349db8bf80abd13Lennart Poettering printf(" State: %s\n", operational_state);

023fb90b83871a15ef7f57e8cd126e3426f99b9eLennart Poettering

023fb90b83871a15ef7f57e8cd126e3426f99b9eLennart Poettering sd_network_get_dns(&dns);

023fb90b83871a15ef7f57e8cd126e3426f99b9eLennart Poettering if (!strv_isempty(dns))

023fb90b83871a15ef7f57e8cd126e3426f99b9eLennart Poettering dump_list(" DNS: ", dns);

023fb90b83871a15ef7f57e8cd126e3426f99b9eLennart Poettering

023fb90b83871a15ef7f57e8cd126e3426f99b9eLennart Poettering sd_network_get_dns(&ntp);

023fb90b83871a15ef7f57e8cd126e3426f99b9eLennart Poettering if (!strv_isempty(ntp))

023fb90b83871a15ef7f57e8cd126e3426f99b9eLennart Poettering dump_list(" NTP: ", ntp);

023fb90b83871a15ef7f57e8cd126e3426f99b9eLennart Poettering

023fb90b83871a15ef7f57e8cd126e3426f99b9eLennart Poettering return 0;

023fb90b83871a15ef7f57e8cd126e3426f99b9eLennart Poettering }

023fb90b83871a15ef7f57e8cd126e3426f99b9eLennart Poettering

023fb90b83871a15ef7f57e8cd126e3426f99b9eLennart Poettering pager_open_if_enabled();

023fb90b83871a15ef7f57e8cd126e3426f99b9eLennart Poettering

023fb90b83871a15ef7f57e8cd126e3426f99b9eLennart Poettering r = sd_rtnl_open(&rtnl, 0);

023fb90b83871a15ef7f57e8cd126e3426f99b9eLennart Poettering if (r < 0) {

023fb90b83871a15ef7f57e8cd126e3426f99b9eLennart Poettering log_error("Failed to connect to netlink: %s", strerror(-r));

023fb90b83871a15ef7f57e8cd126e3426f99b9eLennart Poettering return r;

023fb90b83871a15ef7f57e8cd126e3426f99b9eLennart Poettering }

023fb90b83871a15ef7f57e8cd126e3426f99b9eLennart Poettering

023fb90b83871a15ef7f57e8cd126e3426f99b9eLennart Poettering udev = udev_new();

023fb90b83871a15ef7f57e8cd126e3426f99b9eLennart Poettering if (!udev) {

023fb90b83871a15ef7f57e8cd126e3426f99b9eLennart Poettering log_error("Failed to connect to udev: %m");

023fb90b83871a15ef7f57e8cd126e3426f99b9eLennart Poettering return -errno;

023fb90b83871a15ef7f57e8cd126e3426f99b9eLennart Poettering }

023fb90b83871a15ef7f57e8cd126e3426f99b9eLennart Poettering

023fb90b83871a15ef7f57e8cd126e3426f99b9eLennart Poettering if (arg_all) {

023fb90b83871a15ef7f57e8cd126e3426f99b9eLennart Poettering _cleanup_rtnl_message_unref_ sd_rtnl_message *req = NULL, *reply = NULL;

023fb90b83871a15ef7f57e8cd126e3426f99b9eLennart Poettering sd_rtnl_message *i;

023fb90b83871a15ef7f57e8cd126e3426f99b9eLennart Poettering bool space = false;

023fb90b83871a15ef7f57e8cd126e3426f99b9eLennart Poettering uint16_t type;

023fb90b83871a15ef7f57e8cd126e3426f99b9eLennart Poettering

023fb90b83871a15ef7f57e8cd126e3426f99b9eLennart Poettering r = sd_rtnl_message_new_link(rtnl, &req, RTM_GETLINK, 0);

023fb90b83871a15ef7f57e8cd126e3426f99b9eLennart Poettering if (r < 0)

04d39279245834494baccfdb9349db8bf80abd13Lennart Poettering return rtnl_log_create_error(r);

d60473c7ba32f2325a13f0357b23fd8e25609650Lennart Poettering

d60473c7ba32f2325a13f0357b23fd8e25609650Lennart Poettering r = sd_rtnl_message_request_dump(req, true);

d60473c7ba32f2325a13f0357b23fd8e25609650Lennart Poettering if (r < 0)

d60473c7ba32f2325a13f0357b23fd8e25609650Lennart Poettering return rtnl_log_create_error(r);

d60473c7ba32f2325a13f0357b23fd8e25609650Lennart Poettering

023fb90b83871a15ef7f57e8cd126e3426f99b9eLennart Poettering r = sd_rtnl_call(rtnl, req, 0, &reply);

04d39279245834494baccfdb9349db8bf80abd13Lennart Poettering if (r < 0) {

log_error("Failed to enumerate links: %s", strerror(-r));

return r;

}

for (i = reply; i; i = sd_rtnl_message_next(i)) {

const char *nn;

r = sd_rtnl_message_get_type(i, &type);

if (r < 0)

return rtnl_log_parse_error(r);

if (type != RTM_NEWLINK)

continue;

r = sd_rtnl_message_read_string(i, IFLA_IFNAME, &nn);

if (r < 0)

return rtnl_log_parse_error(r);

if (space)

fputc('\n', stdout);

link_status_one(rtnl, udev, nn);

space = true;

}

}

STRV_FOREACH(name, args + 1) {

if (name != args+1)

fputc('\n', stdout);

link_status_one(rtnl, udev, *name);

}

return 0;

}

static void help(void) {

printf("%s [OPTIONS...]\n\n"

"Query and control the networking subsystem.\n\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"

" -a --all Show status for all links\n\n"

"Commands:\n"

" list List links\n"

" status LINK Show link status\n"

, program_invocation_short_name);

}

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

enum {

ARG_VERSION = 0x100,

ARG_NO_PAGER,

ARG_NO_LEGEND,

};

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 },

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

{}

};

int c;

assert(argc >= 0);

assert(argv);

while ((c = getopt_long(argc, argv, "ha", options, NULL)) >= 0) {

switch (c) {

case 'h':

help();

return 0;

case ARG_VERSION:

puts(PACKAGE_STRING);

puts(SYSTEMD_FEATURES);

return 0;

case ARG_NO_PAGER:

arg_no_pager = true;

break;

case ARG_NO_LEGEND:

arg_legend = false;

break;

case 'a':

arg_all = true;

break;

case '?':

return -EINVAL;

default:

assert_not_reached("Unhandled option");

}

}

return 1;

}

static int networkctl_main(int argc, char *argv[]) {

static const struct {

const char* verb;

const enum {

MORE,

LESS,

EQUAL

} argc_cmp;

const int argc;

int (* const dispatch)(char **args, unsigned n);

} verbs[] = {

{ "list", LESS, 1, list_links },

{ "status", MORE, 1, link_status },

};

int left;

unsigned i;

assert(argc >= 0);

assert(argv);

left = argc - optind;

if (left <= 0)

/* Special rule: no arguments means "list" */

i = 0;

else {

if (streq(argv[optind], "help")) {

help();

return 0;

}

for (i = 0; i < ELEMENTSOF(verbs); i++)

if (streq(argv[optind], verbs[i].verb))

break;

if (i >= ELEMENTSOF(verbs)) {

log_error("Unknown operation %s", argv[optind]);

return -EINVAL;

}

}

switch (verbs[i].argc_cmp) {

case EQUAL:

if (left != verbs[i].argc) {

log_error("Invalid number of arguments.");

return -EINVAL;

}

break;

case MORE:

if (left < verbs[i].argc) {

log_error("Too few arguments.");

return -EINVAL;

}

break;

case LESS:

if (left > verbs[i].argc) {

log_error("Too many arguments.");

return -EINVAL;

}

break;

default:

assert_not_reached("Unknown comparison operator.");

}

return verbs[i].dispatch(argv + optind, left);

}

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

int r;

log_parse_environment();

log_open();

r = parse_argv(argc, argv);

if (r <= 0)

goto finish;

r = networkctl_main(argc, argv);

finish:

pager_close();

return r < 0 ? EXIT_FAILURE : EXIT_SUCCESS;

}