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systemd/src/network/networkctl.c
Alvin Šipraga 4a481ec4ae network: show online state in networkctl status output 
In case the link online state is invalid, networkctl will print
"unknown", which is sufficiently neutral. The same goes for the overall
manager online state if there are no managed links, or if
RequiredForOnline=no for all managed links.

Example output:

  $ networkctl status
  ●        State: routable
    Online state: partial
         Address: 172.22.0.130 on wlan0
  ...

  $ networkctl status wlan0
  ● 3: wlan0
               Link File: /lib/systemd/network/99-default.link
            Network File: /etc/systemd/network/50-wlan0.network
                    Type: wlan
                   State: routable (configured)
            Online state: online
  ...
2021-05-19 10:34:06 +09:00

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/* SPDX-License-Identifier: LGPL-2.1-or-later */
#include <arpa/inet.h>
#include <getopt.h>
#include <linux/if_addrlabel.h>
#include <net/if.h>
#include <stdbool.h>
#include <sys/stat.h>
#include <sys/types.h>
#include <unistd.h>
#include <linux/if_bridge.h>
#include <linux/if_tunnel.h>
#include "sd-bus.h"
#include "sd-device.h"
#include "sd-dhcp-client.h"
#include "sd-hwdb.h"
#include "sd-lldp.h"
#include "sd-netlink.h"
#include "sd-network.h"
#include "alloc-util.h"
#include "bond-util.h"
#include "bridge-util.h"
#include "bus-common-errors.h"
#include "bus-error.h"
#include "bus-locator.h"
#include "device-util.h"
#include "escape.h"
#include "ether-addr-util.h"
#include "ethtool-util.h"
#include "fd-util.h"
#include "format-table.h"
#include "format-util.h"
#include "geneve-util.h"
#include "glob-util.h"
#include "hwdb-util.h"
#include "ipvlan-util.h"
#include "local-addresses.h"
#include "locale-util.h"
#include "logs-show.h"
#include "macro.h"
#include "macvlan-util.h"
#include "main-func.h"
#include "netlink-util.h"
#include "network-internal.h"
#include "network-util.h"
#include "pager.h"
#include "parse-argument.h"
#include "parse-util.h"
#include "pretty-print.h"
#include "set.h"
#include "socket-netlink.h"
#include "socket-util.h"
#include "sort-util.h"
#include "sparse-endian.h"
#include "stdio-util.h"
#include "string-table.h"
#include "string-util.h"
#include "strv.h"
#include "strxcpyx.h"
#include "terminal-util.h"
#include "unit-def.h"
#include "verbs.h"
#include "wifi-util.h"
/* Kernel defines MODULE_NAME_LEN as 64 - sizeof(unsigned long). So, 64 is enough. */
#define NETDEV_KIND_MAX 64
/* use 128 kB for receive socket kernel queue, we shouldn't need more here */
#define RCVBUF_SIZE (128*1024)
static PagerFlags arg_pager_flags = 0;
static bool arg_legend = true;
static bool arg_all = false;
static bool arg_stats = false;
static bool arg_full = false;
static unsigned arg_lines = 10;
static JsonFormatFlags arg_json_format_flags = JSON_FORMAT_OFF;
static int get_description(JsonVariant **ret) {
_cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL;
_cleanup_(sd_bus_message_unrefp) sd_bus_message *reply = NULL;
_cleanup_(sd_bus_flush_close_unrefp) sd_bus *bus = NULL;
const char *text = NULL;
int r;
r = sd_bus_open_system(&bus);
if (r < 0)
return log_error_errno(r, "Failed to connect system bus: %m");
r = bus_call_method(bus, bus_network_mgr, "Describe", &error, &reply, NULL);
if (r < 0)
return log_error_errno(r, "Failed to get description: %s", bus_error_message(&error, r));
r = sd_bus_message_read(reply, "s", &text);
if (r < 0)
return bus_log_parse_error(r);
r = json_parse(text, 0, ret, NULL, NULL);
if (r < 0)
return log_error_errno(r, "Failed to parse JSON: %m");
return 0;
}
static int dump_manager_description(void) {
_cleanup_(json_variant_unrefp) JsonVariant *v = NULL;
int r;
r = get_description(&v);
if (r < 0)
return r;
json_variant_dump(v, arg_json_format_flags, NULL, NULL);
return 0;
}
static int dump_link_description(char **patterns) {
_cleanup_(json_variant_unrefp) JsonVariant *v = NULL;
_cleanup_free_ bool *matched_patterns = NULL;
JsonVariant *i;
size_t c = 0;
int r;
r = get_description(&v);
if (r < 0)
return r;
matched_patterns = new0(bool, strv_length(patterns));
if (!matched_patterns)
return log_oom();
JSON_VARIANT_ARRAY_FOREACH(i, json_variant_by_key(v, "Interfaces")) {
char ifindex_str[DECIMAL_STR_MAX(intmax_t)];
const char *name;
intmax_t index;
size_t pos;
name = json_variant_string(json_variant_by_key(i, "Name"));
index = json_variant_integer(json_variant_by_key(i, "Index"));
xsprintf(ifindex_str, "%ji", index);
if (!strv_fnmatch_full(patterns, ifindex_str, 0, &pos) &&
!strv_fnmatch_full(patterns, name, 0, &pos)) {
bool match = false;
JsonVariant *a;
JSON_VARIANT_ARRAY_FOREACH(a, json_variant_by_key(i, "AlternativeNames"))
if (strv_fnmatch_full(patterns, json_variant_string(a), 0, &pos)) {
match = true;
break;
}
if (!match)
continue;
}
matched_patterns[pos] = true;
json_variant_dump(i, arg_json_format_flags, NULL, NULL);
c++;
}
/* Look if we matched all our arguments that are not globs. It is OK for a glob to match
* nothing, but not for an exact argument. */
for (size_t pos = 0; pos < strv_length(patterns); pos++) {
if (matched_patterns[pos])
continue;
if (string_is_glob(patterns[pos]))
log_debug("Pattern \"%s\" doesn't match any interface, ignoring.",
patterns[pos]);
else
return log_error_errno(SYNTHETIC_ERRNO(ENODEV),
"Interface \"%s\" not found.", patterns[pos]);
}
if (c == 0)
log_warning("No interfaces matched.");
return 0;
}
static void operational_state_to_color(const char *name, const char *state, const char **on, const char **off) {
if (STRPTR_IN_SET(state, "routable", "enslaved") ||
(streq_ptr(name, "lo") && streq_ptr(state, "carrier"))) {
if (on)
*on = ansi_highlight_green();
if (off)
*off = ansi_normal();
} else if (streq_ptr(state, "degraded")) {
if (on)
*on = ansi_highlight_yellow();
if (off)
*off = ansi_normal();
} else {
if (on)
*on = "";
if (off)
*off = "";
}
}
static void setup_state_to_color(const char *state, const char **on, const char **off) {
if (streq_ptr(state, "configured")) {
if (on)
*on = ansi_highlight_green();
if (off)
*off = ansi_normal();
} else if (streq_ptr(state, "configuring")) {
if (on)
*on = ansi_highlight_yellow();
if (off)
*off = ansi_normal();
} else if (STRPTR_IN_SET(state, "failed", "linger")) {
if (on)
*on = ansi_highlight_red();
if (off)
*off = ansi_normal();
} else {
if (on)
*on = "";
if (off)
*off = "";
}
}
static void online_state_to_color(const char *state, const char **on, const char **off) {
if (streq_ptr(state, "online")) {
if (on)
*on = ansi_highlight_green();
if (off)
*off = ansi_normal();
} else if (streq_ptr(state, "partial")) {
if (on)
*on = ansi_highlight_yellow();
if (off)
*off = ansi_normal();
} else {
if (on)
*on = "";
if (off)
*off = "";
}
}
typedef struct VxLanInfo {
uint32_t vni;
uint32_t link;
int local_family;
int group_family;
union in_addr_union local;
union in_addr_union group;
uint16_t dest_port;
uint8_t proxy;
uint8_t learning;
uint8_t inerit;
uint8_t rsc;
uint8_t l2miss;
uint8_t l3miss;
uint8_t tos;
uint8_t ttl;
} VxLanInfo;
typedef struct LinkInfo {
char name[IFNAMSIZ+1];
char netdev_kind[NETDEV_KIND_MAX];
sd_device *sd_device;
int ifindex;
unsigned short iftype;
hw_addr_data hw_address;
struct ether_addr permanent_mac_address;
uint32_t master;
uint32_t mtu;
uint32_t min_mtu;
uint32_t max_mtu;
uint32_t tx_queues;
uint32_t rx_queues;
uint8_t addr_gen_mode;
char *qdisc;
char **alternative_names;
union {
struct rtnl_link_stats64 stats64;
struct rtnl_link_stats stats;
};
uint64_t tx_bitrate;
uint64_t rx_bitrate;
/* bridge info */
uint32_t forward_delay;
uint32_t hello_time;
uint32_t max_age;
uint32_t ageing_time;
uint32_t stp_state;
uint32_t cost;
uint16_t priority;
uint8_t mcast_igmp_version;
uint8_t port_state;
/* vxlan info */
VxLanInfo vxlan_info;
/* vlan info */
uint16_t vlan_id;
/* tunnel info */
uint8_t ttl;
uint8_t tos;
uint8_t inherit;
uint8_t df;
uint8_t csum;
uint8_t csum6_tx;
uint8_t csum6_rx;
uint16_t tunnel_port;
uint32_t vni;
uint32_t label;
union in_addr_union local;
union in_addr_union remote;
/* bonding info */
uint8_t mode;
uint32_t miimon;
uint32_t updelay;
uint32_t downdelay;
/* macvlan and macvtap info */
uint32_t macvlan_mode;
/* ipvlan info */
uint16_t ipvlan_mode;
uint16_t ipvlan_flags;
/* ethtool info */
int autonegotiation;
uint64_t speed;
Duplex duplex;
NetDevPort port;
/* wlan info */
enum nl80211_iftype wlan_iftype;
char *ssid;
struct ether_addr bssid;
bool has_mac_address:1;
bool has_permanent_mac_address:1;
bool has_tx_queues:1;
bool has_rx_queues:1;
bool has_stats64:1;
bool has_stats:1;
bool has_bitrates:1;
bool has_ethtool_link_info:1;
bool has_wlan_link_info:1;
bool has_tunnel_ipv4:1;
bool has_ipv6_address_generation_mode:1;
bool needs_freeing:1;
} LinkInfo;
static int link_info_compare(const LinkInfo *a, const LinkInfo *b) {
return CMP(a->ifindex, b->ifindex);
}
static LinkInfo* link_info_array_free(LinkInfo *array) {
for (unsigned i = 0; array && array[i].needs_freeing; i++) {
sd_device_unref(array[i].sd_device);
free(array[i].ssid);
free(array[i].qdisc);
strv_free(array[i].alternative_names);
}
return mfree(array);
}
DEFINE_TRIVIAL_CLEANUP_FUNC(LinkInfo*, link_info_array_free);
static int decode_netdev(sd_netlink_message *m, LinkInfo *info) {
const char *received_kind;
int r;
assert(m);
assert(info);
r = sd_netlink_message_enter_container(m, IFLA_LINKINFO);
if (r < 0)
return r;
r = sd_netlink_message_read_string(m, IFLA_INFO_KIND, &received_kind);
if (r < 0)
return r;
r = sd_netlink_message_enter_container(m, IFLA_INFO_DATA);
if (r < 0)
return r;
if (streq(received_kind, "bridge")) {
(void) sd_netlink_message_read_u32(m, IFLA_BR_FORWARD_DELAY, &info->forward_delay);
(void) sd_netlink_message_read_u32(m, IFLA_BR_HELLO_TIME, &info->hello_time);
(void) sd_netlink_message_read_u32(m, IFLA_BR_MAX_AGE, &info->max_age);
(void) sd_netlink_message_read_u32(m, IFLA_BR_AGEING_TIME, &info->ageing_time);
(void) sd_netlink_message_read_u32(m, IFLA_BR_STP_STATE, &info->stp_state);
(void) sd_netlink_message_read_u32(m, IFLA_BRPORT_COST, &info->cost);
(void) sd_netlink_message_read_u16(m, IFLA_BR_PRIORITY, &info->priority);
(void) sd_netlink_message_read_u8(m, IFLA_BR_MCAST_IGMP_VERSION, &info->mcast_igmp_version);
(void) sd_netlink_message_read_u8(m, IFLA_BRPORT_STATE, &info->port_state);
} if (streq(received_kind, "bond")) {
(void) sd_netlink_message_read_u8(m, IFLA_BOND_MODE, &info->mode);
(void) sd_netlink_message_read_u32(m, IFLA_BOND_MIIMON, &info->miimon);
(void) sd_netlink_message_read_u32(m, IFLA_BOND_DOWNDELAY, &info->downdelay);
(void) sd_netlink_message_read_u32(m, IFLA_BOND_UPDELAY, &info->updelay);
} else if (streq(received_kind, "vxlan")) {
(void) sd_netlink_message_read_u32(m, IFLA_VXLAN_ID, &info->vxlan_info.vni);
r = sd_netlink_message_read_in_addr(m, IFLA_VXLAN_GROUP, &info->vxlan_info.group.in);
if (r >= 0)
info->vxlan_info.group_family = AF_INET;
else {
r = sd_netlink_message_read_in6_addr(m, IFLA_VXLAN_GROUP6, &info->vxlan_info.group.in6);
if (r >= 0)
info->vxlan_info.group_family = AF_INET6;
}
r = sd_netlink_message_read_in_addr(m, IFLA_VXLAN_LOCAL, &info->vxlan_info.local.in);
if (r >= 0)
info->vxlan_info.local_family = AF_INET;
else {
r = sd_netlink_message_read_in6_addr(m, IFLA_VXLAN_LOCAL6, &info->vxlan_info.local.in6);
if (r >= 0)
info->vxlan_info.local_family = AF_INET6;
}
(void) sd_netlink_message_read_u32(m, IFLA_VXLAN_LINK, &info->vxlan_info.link);
(void) sd_netlink_message_read_u16(m, IFLA_VXLAN_PORT, &info->vxlan_info.dest_port);
(void) sd_netlink_message_read_u8(m, IFLA_VXLAN_PROXY, &info->vxlan_info.proxy);
(void) sd_netlink_message_read_u8(m, IFLA_VXLAN_LEARNING, &info->vxlan_info.learning);
(void) sd_netlink_message_read_u8(m, IFLA_VXLAN_RSC, &info->vxlan_info.rsc);
(void) sd_netlink_message_read_u8(m, IFLA_VXLAN_L3MISS, &info->vxlan_info.l3miss);
(void) sd_netlink_message_read_u8(m, IFLA_VXLAN_L2MISS, &info->vxlan_info.l2miss);
(void) sd_netlink_message_read_u8(m, IFLA_VXLAN_TOS, &info->vxlan_info.tos);
(void) sd_netlink_message_read_u8(m, IFLA_VXLAN_TTL, &info->vxlan_info.ttl);
} else if (streq(received_kind, "vlan"))
(void) sd_netlink_message_read_u16(m, IFLA_VLAN_ID, &info->vlan_id);
else if (STR_IN_SET(received_kind, "ipip", "sit")) {
(void) sd_netlink_message_read_in_addr(m, IFLA_IPTUN_LOCAL, &info->local.in);
(void) sd_netlink_message_read_in_addr(m, IFLA_IPTUN_REMOTE, &info->remote.in);
} else if (streq(received_kind, "geneve")) {
(void) sd_netlink_message_read_u32(m, IFLA_GENEVE_ID, &info->vni);
r = sd_netlink_message_read_in_addr(m, IFLA_GENEVE_REMOTE, &info->remote.in);
if (r >= 0)
info->has_tunnel_ipv4 = true;
else
(void) sd_netlink_message_read_in6_addr(m, IFLA_GENEVE_REMOTE6, &info->remote.in6);
(void) sd_netlink_message_read_u8(m, IFLA_GENEVE_TTL, &info->ttl);
(void) sd_netlink_message_read_u8(m, IFLA_GENEVE_TTL_INHERIT, &info->inherit);
(void) sd_netlink_message_read_u8(m, IFLA_GENEVE_TOS, &info->tos);
(void) sd_netlink_message_read_u8(m, IFLA_GENEVE_DF, &info->df);
(void) sd_netlink_message_read_u8(m, IFLA_GENEVE_UDP_CSUM, &info->csum);
(void) sd_netlink_message_read_u8(m, IFLA_GENEVE_UDP_ZERO_CSUM6_TX, &info->csum6_tx);
(void) sd_netlink_message_read_u8(m, IFLA_GENEVE_UDP_ZERO_CSUM6_RX, &info->csum6_rx);
(void) sd_netlink_message_read_u16(m, IFLA_GENEVE_PORT, &info->tunnel_port);
(void) sd_netlink_message_read_u32(m, IFLA_GENEVE_LABEL, &info->label);
} else if (STR_IN_SET(received_kind, "gre", "gretap", "erspan")) {
(void) sd_netlink_message_read_in_addr(m, IFLA_GRE_LOCAL, &info->local.in);
(void) sd_netlink_message_read_in_addr(m, IFLA_GRE_REMOTE, &info->remote.in);
} else if (STR_IN_SET(received_kind, "ip6gre", "ip6gretap", "ip6erspan")) {
(void) sd_netlink_message_read_in6_addr(m, IFLA_GRE_LOCAL, &info->local.in6);
(void) sd_netlink_message_read_in6_addr(m, IFLA_GRE_REMOTE, &info->remote.in6);
} else if (streq(received_kind, "vti")) {
(void) sd_netlink_message_read_in_addr(m, IFLA_VTI_LOCAL, &info->local.in);
(void) sd_netlink_message_read_in_addr(m, IFLA_VTI_REMOTE, &info->remote.in);
} else if (streq(received_kind, "vti6")) {
(void) sd_netlink_message_read_in6_addr(m, IFLA_VTI_LOCAL, &info->local.in6);
(void) sd_netlink_message_read_in6_addr(m, IFLA_VTI_REMOTE, &info->remote.in6);
} else if (STR_IN_SET(received_kind, "macvlan", "macvtap"))
(void) sd_netlink_message_read_u32(m, IFLA_MACVLAN_MODE, &info->macvlan_mode);
else if (streq(received_kind, "ipvlan")) {
(void) sd_netlink_message_read_u16(m, IFLA_IPVLAN_MODE, &info->ipvlan_mode);
(void) sd_netlink_message_read_u16(m, IFLA_IPVLAN_FLAGS, &info->ipvlan_flags);
}
strncpy(info->netdev_kind, received_kind, IFNAMSIZ);
(void) sd_netlink_message_exit_container(m);
(void) sd_netlink_message_exit_container(m);
return 0;
}
static int decode_link(sd_netlink_message *m, LinkInfo *info, char **patterns, bool matched_patterns[]) {
_cleanup_strv_free_ char **altnames = NULL;
const char *name, *qdisc;
int ifindex, r;
uint16_t type;
assert(m);
assert(info);
r = sd_netlink_message_get_type(m, &type);
if (r < 0)
return r;
if (type != RTM_NEWLINK)
return 0;
r = sd_rtnl_message_link_get_ifindex(m, &ifindex);
if (r < 0)
return r;
r = sd_netlink_message_read_string(m, IFLA_IFNAME, &name);
if (r < 0)
return r;
r = sd_netlink_message_read_strv(m, IFLA_PROP_LIST, IFLA_ALT_IFNAME, &altnames);
if (r < 0 && r != -ENODATA)
return r;
if (patterns) {
char str[DECIMAL_STR_MAX(int)];
size_t pos;
assert(matched_patterns);
xsprintf(str, "%i", ifindex);
if (!strv_fnmatch_full(patterns, str, 0, &pos) &&
!strv_fnmatch_full(patterns, name, 0, &pos)) {
bool match = false;
char **p;
STRV_FOREACH(p, altnames)
if (strv_fnmatch_full(patterns, *p, 0, &pos)) {
match = true;
break;
}
if (!match)
return 0;
}
matched_patterns[pos] = true;
}
r = sd_rtnl_message_link_get_type(m, &info->iftype);
if (r < 0)
return r;
strscpy(info->name, sizeof info->name, name);
info->ifindex = ifindex;
info->alternative_names = TAKE_PTR(altnames);
info->has_mac_address =
netlink_message_read_hw_addr(m, IFLA_ADDRESS, &info->hw_address) >= 0 &&
memcmp(&info->hw_address, &HW_ADDR_NULL, sizeof(hw_addr_data)) != 0;
info->has_permanent_mac_address =
ethtool_get_permanent_macaddr(NULL, info->name, &info->permanent_mac_address) >= 0 &&
memcmp(&info->permanent_mac_address, &ETHER_ADDR_NULL, sizeof(struct ether_addr)) != 0 &&
(info->hw_address.length != sizeof(struct ether_addr) ||
memcmp(&info->permanent_mac_address, info->hw_address.addr.bytes, sizeof(struct ether_addr)) != 0);
(void) sd_netlink_message_read_u32(m, IFLA_MTU, &info->mtu);
(void) sd_netlink_message_read_u32(m, IFLA_MIN_MTU, &info->min_mtu);
(void) sd_netlink_message_read_u32(m, IFLA_MAX_MTU, &info->max_mtu);
info->has_rx_queues =
sd_netlink_message_read_u32(m, IFLA_NUM_RX_QUEUES, &info->rx_queues) >= 0 &&
info->rx_queues > 0;
info->has_tx_queues =
sd_netlink_message_read_u32(m, IFLA_NUM_TX_QUEUES, &info->tx_queues) >= 0 &&
info->tx_queues > 0;
if (sd_netlink_message_read(m, IFLA_STATS64, sizeof info->stats64, &info->stats64) >= 0)
info->has_stats64 = true;
else if (sd_netlink_message_read(m, IFLA_STATS, sizeof info->stats, &info->stats) >= 0)
info->has_stats = true;
r = sd_netlink_message_read_string(m, IFLA_QDISC, &qdisc);
if (r >= 0) {
info->qdisc = strdup(qdisc);
if (!info->qdisc)
return log_oom();
}
(void) sd_netlink_message_read_u32(m, IFLA_MASTER, &info->master);
r = sd_netlink_message_enter_container(m, IFLA_AF_SPEC);
if (r >= 0) {
r = sd_netlink_message_enter_container(m, AF_INET6);
if (r >= 0) {
r = sd_netlink_message_read_u8(m, IFLA_INET6_ADDR_GEN_MODE, &info->addr_gen_mode);
if (r >= 0 && IN_SET(info->addr_gen_mode,
IN6_ADDR_GEN_MODE_EUI64,
IN6_ADDR_GEN_MODE_NONE,
IN6_ADDR_GEN_MODE_STABLE_PRIVACY,
IN6_ADDR_GEN_MODE_RANDOM))
info->has_ipv6_address_generation_mode = true;
(void) sd_netlink_message_exit_container(m);
}
(void) sd_netlink_message_exit_container(m);
}
/* fill kind info */
(void) decode_netdev(m, info);
return 1;
}
static int link_get_property(
sd_bus *bus,
const LinkInfo *link,
sd_bus_error *error,
sd_bus_message **reply,
const char *iface,
const char *propname) {
_cleanup_free_ char *path = NULL, *ifindex_str = NULL;
int r;
if (asprintf(&ifindex_str, "%i", link->ifindex) < 0)
return -ENOMEM;
r = sd_bus_path_encode("/org/freedesktop/network1/link", ifindex_str, &path);
if (r < 0)
return r;
return sd_bus_call_method(
bus,
"org.freedesktop.network1",
path,
"org.freedesktop.DBus.Properties",
"Get",
error,
reply,
"ss",
iface,
propname);
}
static int acquire_link_bitrates(sd_bus *bus, LinkInfo *link) {
_cleanup_(sd_bus_message_unrefp) sd_bus_message *reply = NULL;
_cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL;
int r;
r = link_get_property(bus, link, &error, &reply, "org.freedesktop.network1.Link", "BitRates");
if (r < 0) {
bool quiet = sd_bus_error_has_names(&error, SD_BUS_ERROR_UNKNOWN_PROPERTY,
BUS_ERROR_SPEED_METER_INACTIVE);
return log_full_errno(quiet ? LOG_DEBUG : LOG_WARNING,
r, "Failed to query link bit rates: %s", bus_error_message(&error, r));
}
r = sd_bus_message_enter_container(reply, 'v', "(tt)");
if (r < 0)
return bus_log_parse_error(r);
r = sd_bus_message_read(reply, "(tt)", &link->tx_bitrate, &link->rx_bitrate);
if (r < 0)
return bus_log_parse_error(r);
r = sd_bus_message_exit_container(reply);
if (r < 0)
return bus_log_parse_error(r);
link->has_bitrates = link->tx_bitrate != UINT64_MAX && link->rx_bitrate != UINT64_MAX;
return 0;
}
static void acquire_ether_link_info(int *fd, LinkInfo *link) {
if (ethtool_get_link_info(fd, link->name,
&link->autonegotiation,
&link->speed,
&link->duplex,
&link->port) >= 0)
link->has_ethtool_link_info = true;
}
static void acquire_wlan_link_info(LinkInfo *link) {
_cleanup_(sd_netlink_unrefp) sd_netlink *genl = NULL;
const char *type = NULL;
int r, k = 0;
if (link->sd_device)
(void) sd_device_get_devtype(link->sd_device, &type);
if (!streq_ptr(type, "wlan"))
return;
r = sd_genl_socket_open(&genl);
if (r < 0) {
log_debug_errno(r, "Failed to open generic netlink socket: %m");
return;
}
(void) sd_netlink_inc_rcvbuf(genl, RCVBUF_SIZE);
r = wifi_get_interface(genl, link->ifindex, &link->wlan_iftype, &link->ssid);
if (r < 0)
log_debug_errno(r, "%s: failed to query ssid: %m", link->name);
if (link->wlan_iftype == NL80211_IFTYPE_STATION) {
k = wifi_get_station(genl, link->ifindex, &link->bssid);
if (k < 0)
log_debug_errno(k, "%s: failed to query bssid: %m", link->name);
}
link->has_wlan_link_info = r > 0 || k > 0;
}
static int acquire_link_info(sd_bus *bus, sd_netlink *rtnl, char **patterns, LinkInfo **ret) {
_cleanup_(sd_netlink_message_unrefp) sd_netlink_message *req = NULL, *reply = NULL;
_cleanup_(link_info_array_freep) LinkInfo *links = NULL;
_cleanup_close_ int fd = -1;
size_t allocated = 0, c = 0;
int r;
assert(rtnl);
assert(ret);
r = sd_rtnl_message_new_link(rtnl, &req, RTM_GETLINK, 0);
if (r < 0)
return rtnl_log_create_error(r);
r = sd_netlink_message_request_dump(req, true);
if (r < 0)
return rtnl_log_create_error(r);
r = sd_netlink_call(rtnl, req, 0, &reply);
if (r < 0)
return log_error_errno(r, "Failed to enumerate links: %m");
_cleanup_free_ bool *matched_patterns = NULL;
if (patterns) {
matched_patterns = new0(bool, strv_length(patterns));
if (!matched_patterns)
return log_oom();
}
for (sd_netlink_message *i = reply; i; i = sd_netlink_message_next(i)) {
if (!GREEDY_REALLOC0(links, allocated, c + 2)) /* We keep one trailing one as marker */
return -ENOMEM;
r = decode_link(i, links + c, patterns, matched_patterns);
if (r < 0)
return r;
if (r == 0)
continue;
links[c].needs_freeing = true;
char devid[2 + DECIMAL_STR_MAX(int)];
xsprintf(devid, "n%i", links[c].ifindex);
(void) sd_device_new_from_device_id(&links[c].sd_device, devid);
acquire_ether_link_info(&fd, &links[c]);
acquire_wlan_link_info(&links[c]);
c++;
}
/* Look if we matched all our arguments that are not globs. It
* is OK for a glob to match nothing, but not for an exact argument. */
for (size_t pos = 0; pos < strv_length(patterns); pos++) {
if (matched_patterns[pos])
continue;
if (string_is_glob(patterns[pos]))
log_debug("Pattern \"%s\" doesn't match any interface, ignoring.",
patterns[pos]);
else
return log_error_errno(SYNTHETIC_ERRNO(ENODEV),
"Interface \"%s\" not found.", patterns[pos]);
}
typesafe_qsort(links, c, link_info_compare);
if (bus)
for (size_t j = 0; j < c; j++)
(void) acquire_link_bitrates(bus, links + j);
*ret = TAKE_PTR(links);
if (patterns && c == 0)
log_warning("No interfaces matched.");
return (int) c;
}
static int list_links(int argc, char *argv[], void *userdata) {
_cleanup_(sd_netlink_unrefp) sd_netlink *rtnl = NULL;
_cleanup_(link_info_array_freep) LinkInfo *links = NULL;
_cleanup_(table_unrefp) Table *table = NULL;
TableCell *cell;
int c, r;
if (arg_json_format_flags != JSON_FORMAT_OFF) {
if (arg_all || argc <= 1)
return dump_manager_description();
else
return dump_link_description(strv_skip(argv, 1));
}
r = sd_netlink_open(&rtnl);
if (r < 0)
return log_error_errno(r, "Failed to connect to netlink: %m");
c = acquire_link_info(NULL, rtnl, argc > 1 ? argv + 1 : NULL, &links);
if (c < 0)
return c;
(void) pager_open(arg_pager_flags);
table = table_new("idx", "link", "type", "operational", "setup");
if (!table)
return log_oom();
if (arg_full)
table_set_width(table, 0);
table_set_header(table, arg_legend);
if (table_set_empty_string(table, "n/a") < 0)
return log_oom();
assert_se(cell = table_get_cell(table, 0, 0));
(void) table_set_minimum_width(table, cell, 3);
(void) table_set_weight(table, cell, 0);
(void) table_set_ellipsize_percent(table, cell, 100);
(void) table_set_align_percent(table, cell, 100);
assert_se(cell = table_get_cell(table, 0, 1));
(void) table_set_ellipsize_percent(table, cell, 100);
for (int i = 0; i < c; i++) {
_cleanup_free_ char *setup_state = NULL, *operational_state = NULL;
const char *on_color_operational, *on_color_setup;
_cleanup_free_ char *t = NULL;
(void) sd_network_link_get_operational_state(links[i].ifindex, &operational_state);
operational_state_to_color(links[i].name, operational_state, &on_color_operational, NULL);
r = sd_network_link_get_setup_state(links[i].ifindex, &setup_state);
if (r == -ENODATA) /* If there's no info available about this iface, it's unmanaged by networkd */
setup_state = strdup("unmanaged");
setup_state_to_color(setup_state, &on_color_setup, NULL);
r = link_get_type_string(links[i].sd_device, links[i].iftype, &t);
if (r == -ENOMEM)
return log_oom();
r = table_add_many(table,
TABLE_INT, links[i].ifindex,
TABLE_STRING, links[i].name,
TABLE_STRING, t,
TABLE_STRING, operational_state,
TABLE_SET_COLOR, on_color_operational,
TABLE_STRING, setup_state,
TABLE_SET_COLOR, on_color_setup);
if (r < 0)
return table_log_add_error(r);
}
r = table_print(table, NULL);
if (r < 0)
return table_log_print_error(r);
if (arg_legend)
printf("\n%i links listed.\n", c);
return 0;
}
/* IEEE Organizationally Unique Identifier vendor string */
static int ieee_oui(sd_hwdb *hwdb, const struct ether_addr *mac, char **ret) {
const char *description;
char modalias[STRLEN("OUI:XXYYXXYYXXYY") + 1], *desc;
int r;
assert(ret);
if (!hwdb)
return -EINVAL;
if (!mac)
return -EINVAL;
/* skip commonly misused 00:00:00 (Xerox) prefix */
if (memcmp(mac, "\0\0\0", 3) == 0)
return -EINVAL;
xsprintf(modalias, "OUI:" ETHER_ADDR_FORMAT_STR,
ETHER_ADDR_FORMAT_VAL(*mac));
r = sd_hwdb_get(hwdb, modalias, "ID_OUI_FROM_DATABASE", &description);
if (r < 0)
return r;
desc = strdup(description);
if (!desc)
return -ENOMEM;
*ret = desc;
return 0;
}
static int get_gateway_description(
sd_netlink *rtnl,
sd_hwdb *hwdb,
int ifindex,
int family,
union in_addr_union *gateway,
char **gateway_description) {
_cleanup_(sd_netlink_message_unrefp) sd_netlink_message *req = NULL, *reply = NULL;
int r;
assert(rtnl);
assert(ifindex >= 0);
assert(IN_SET(family, AF_INET, AF_INET6));
assert(gateway);
assert(gateway_description);
r = sd_rtnl_message_new_neigh(rtnl, &req, RTM_GETNEIGH, ifindex, family);
if (r < 0)
return r;
r = sd_netlink_message_request_dump(req, true);
if (r < 0)
return r;
r = sd_netlink_call(rtnl, req, 0, &reply);
if (r < 0)
return r;
for (sd_netlink_message *m = reply; m; m = sd_netlink_message_next(m)) {
union in_addr_union gw = IN_ADDR_NULL;
struct ether_addr mac = ETHER_ADDR_NULL;
uint16_t type;
int ifi, fam;
r = sd_netlink_message_get_errno(m);
if (r < 0) {
log_error_errno(r, "got error: %m");
continue;
}
r = sd_netlink_message_get_type(m, &type);
if (r < 0) {
log_error_errno(r, "could not get type: %m");
continue;
}
if (type != RTM_NEWNEIGH) {
log_error("type is not RTM_NEWNEIGH");
continue;
}
r = sd_rtnl_message_neigh_get_family(m, &fam);
if (r < 0) {
log_error_errno(r, "could not get family: %m");
continue;
}
if (fam != family) {
log_error("family is not correct");
continue;
}
r = sd_rtnl_message_neigh_get_ifindex(m, &ifi);
if (r < 0) {
log_error_errno(r, "could not get ifindex: %m");
continue;
}
if (ifindex > 0 && ifi != ifindex)
continue;
switch (fam) {
case AF_INET:
r = sd_netlink_message_read_in_addr(m, NDA_DST, &gw.in);
if (r < 0)
continue;
break;
case AF_INET6:
r = sd_netlink_message_read_in6_addr(m, NDA_DST, &gw.in6);
if (r < 0)
continue;
break;
default:
continue;
}
if (!in_addr_equal(fam, &gw, gateway))
continue;
r = sd_netlink_message_read(m, NDA_LLADDR, sizeof(mac), &mac);
if (r < 0)
continue;
r = ieee_oui(hwdb, &mac, gateway_description);
if (r < 0)
continue;
return 0;
}
return -ENODATA;
}
static int dump_list(Table *table, const char *prefix, char * const *l) {
int r;
if (strv_isempty(l))
return 0;
r = table_add_many(table,
TABLE_EMPTY,
TABLE_STRING, prefix,
TABLE_STRV, l);
if (r < 0)
return table_log_add_error(r);
return 0;
}
static int dump_gateways(
sd_netlink *rtnl,
sd_hwdb *hwdb,
Table *table,
int ifindex) {
_cleanup_free_ struct local_address *local = NULL;
_cleanup_strv_free_ char **buf = NULL;
int r, n;
assert(rtnl);
assert(table);
n = local_gateways(rtnl, ifindex, AF_UNSPEC, &local);
if (n <= 0)
return n;
for (int i = 0; i < n; i++) {
_cleanup_free_ char *gateway = NULL, *description = NULL, *with_description = NULL;
char name[IF_NAMESIZE+1];
r = in_addr_to_string(local[i].family, &local[i].address, &gateway);
if (r < 0)
return r;
r = get_gateway_description(rtnl, hwdb, local[i].ifindex, local[i].family, &local[i].address, &description);
if (r < 0)
log_debug_errno(r, "Could not get description of gateway, ignoring: %m");
if (description) {
with_description = strjoin(gateway, " (", description, ")");
if (!with_description)
return log_oom();
}
/* Show interface name for the entry if we show entries for all interfaces */
r = strv_extendf(&buf, "%s%s%s",
with_description ?: gateway,
ifindex <= 0 ? " on " : "",
ifindex <= 0 ? format_ifname_full(local[i].ifindex, name, FORMAT_IFNAME_IFINDEX_WITH_PERCENT) : "");
if (r < 0)
return log_oom();
}
return dump_list(table, "Gateway:", buf);
}
static int dump_addresses(
sd_netlink *rtnl,
sd_dhcp_lease *lease,
Table *table,
int ifindex) {
_cleanup_free_ struct local_address *local = NULL;
_cleanup_strv_free_ char **buf = NULL;
struct in_addr dhcp4_address = {};
int r, n;
assert(rtnl);
assert(table);
n = local_addresses(rtnl, ifindex, AF_UNSPEC, &local);
if (n <= 0)
return n;
if (lease)
(void) sd_dhcp_lease_get_address(lease, &dhcp4_address);
for (int i = 0; i < n; i++) {
_cleanup_free_ char *pretty = NULL;
char name[IF_NAMESIZE+1];
r = in_addr_to_string(local[i].family, &local[i].address, &pretty);
if (r < 0)
return r;
if (local[i].family == AF_INET && in4_addr_equal(&local[i].address.in, &dhcp4_address)) {
struct in_addr server_address;
char *p, s[INET_ADDRSTRLEN];
r = sd_dhcp_lease_get_server_identifier(lease, &server_address);
if (r >= 0 && inet_ntop(AF_INET, &server_address, s, sizeof(s)))
p = strjoin(pretty, " (DHCP4 via ", s, ")");
else
p = strjoin(pretty, " (DHCP4)");
if (!p)
return log_oom();
free_and_replace(pretty, p);
}
r = strv_extendf(&buf, "%s%s%s",
pretty,
ifindex <= 0 ? " on " : "",
ifindex <= 0 ? format_ifname_full(local[i].ifindex, name, FORMAT_IFNAME_IFINDEX_WITH_PERCENT) : "");
if (r < 0)
return log_oom();
}
return dump_list(table, "Address:", buf);
}
static int dump_address_labels(sd_netlink *rtnl) {
_cleanup_(sd_netlink_message_unrefp) sd_netlink_message *req = NULL, *reply = NULL;
_cleanup_(table_unrefp) Table *table = NULL;
TableCell *cell;
int r;
assert(rtnl);
r = sd_rtnl_message_new_addrlabel(rtnl, &req, RTM_GETADDRLABEL, 0, AF_INET6);
if (r < 0)
return log_error_errno(r, "Could not allocate RTM_GETADDRLABEL message: %m");
r = sd_netlink_message_request_dump(req, true);
if (r < 0)
return r;
r = sd_netlink_call(rtnl, req, 0, &reply);
if (r < 0)
return r;
table = table_new("label", "prefix/prefixlen");
if (!table)
return log_oom();
if (arg_full)
table_set_width(table, 0);
r = table_set_sort(table, (size_t) 0);
if (r < 0)
return r;
assert_se(cell = table_get_cell(table, 0, 0));
(void) table_set_align_percent(table, cell, 100);
(void) table_set_ellipsize_percent(table, cell, 100);
assert_se(cell = table_get_cell(table, 0, 1));
(void) table_set_align_percent(table, cell, 100);
for (sd_netlink_message *m = reply; m; m = sd_netlink_message_next(m)) {
_cleanup_free_ char *pretty = NULL;
union in_addr_union prefix = IN_ADDR_NULL;
uint8_t prefixlen;
uint32_t label;
r = sd_netlink_message_get_errno(m);
if (r < 0) {
log_error_errno(r, "got error: %m");
continue;
}
r = sd_netlink_message_read_u32(m, IFAL_LABEL, &label);
if (r < 0 && r != -ENODATA) {
log_error_errno(r, "Could not read IFAL_LABEL, ignoring: %m");
continue;
}
r = sd_netlink_message_read_in6_addr(m, IFAL_ADDRESS, &prefix.in6);
if (r < 0)
continue;
r = in_addr_to_string(AF_INET6, &prefix, &pretty);
if (r < 0)
continue;
r = sd_rtnl_message_addrlabel_get_prefixlen(m, &prefixlen);
if (r < 0)
continue;
r = table_add_cell(table, NULL, TABLE_UINT32, &label);
if (r < 0)
return table_log_add_error(r);
r = table_add_cell_stringf(table, NULL, "%s/%u", pretty, prefixlen);
if (r < 0)
return table_log_add_error(r);
}
r = table_print(table, NULL);
if (r < 0)
return table_log_print_error(r);
return 0;
}
static int list_address_labels(int argc, char *argv[], void *userdata) {
_cleanup_(sd_netlink_unrefp) sd_netlink *rtnl = NULL;
int r;
r = sd_netlink_open(&rtnl);
if (r < 0)
return log_error_errno(r, "Failed to connect to netlink: %m");
dump_address_labels(rtnl);
return 0;
}
static int open_lldp_neighbors(int ifindex, FILE **ret) {
_cleanup_free_ char *p = NULL;
FILE *f;
if (asprintf(&p, "/run/systemd/netif/lldp/%i", ifindex) < 0)
return -ENOMEM;
f = fopen(p, "re");
if (!f)
return -errno;
*ret = f;
return 0;
}
static int next_lldp_neighbor(FILE *f, sd_lldp_neighbor **ret) {
_cleanup_free_ void *raw = NULL;
size_t l;
le64_t u;
int r;
assert(f);
assert(ret);
l = fread(&u, 1, sizeof(u), f);
if (l == 0 && feof(f))
return 0;
if (l != sizeof(u))
return -EBADMSG;
/* each LLDP packet is at most MTU size, but let's allow up to 4KiB just in case */
if (le64toh(u) >= 4096)
return -EBADMSG;
raw = new(uint8_t, le64toh(u));
if (!raw)
return -ENOMEM;
if (fread(raw, 1, le64toh(u), f) != le64toh(u))
return -EBADMSG;
r = sd_lldp_neighbor_from_raw(ret, raw, le64toh(u));
if (r < 0)
return r;
return 1;
}
static int dump_lldp_neighbors(Table *table, const char *prefix, int ifindex) {
_cleanup_strv_free_ char **buf = NULL;
_cleanup_fclose_ FILE *f = NULL;
int r;
assert(table);
assert(prefix);
assert(ifindex > 0);
r = open_lldp_neighbors(ifindex, &f);
if (r == -ENOENT)
return 0;
if (r < 0)
return r;
for (;;) {
const char *system_name = NULL, *port_id = NULL, *port_description = NULL;
_cleanup_(sd_lldp_neighbor_unrefp) sd_lldp_neighbor *n = NULL;
r = next_lldp_neighbor(f, &n);
if (r < 0)
return r;
if (r == 0)
break;
(void) sd_lldp_neighbor_get_system_name(n, &system_name);
(void) sd_lldp_neighbor_get_port_id_as_string(n, &port_id);
(void) sd_lldp_neighbor_get_port_description(n, &port_description);
r = strv_extendf(&buf, "%s on port %s%s%s%s",
strna(system_name),
strna(port_id),
isempty(port_description) ? "" : " (",
strempty(port_description),
isempty(port_description) ? "" : ")");
if (r < 0)
return log_oom();
}
return dump_list(table, prefix, buf);
}
static int dump_dhcp_leases(Table *table, const char *prefix, sd_bus *bus, const LinkInfo *link) {
_cleanup_strv_free_ char **buf = NULL;
_cleanup_(sd_bus_message_unrefp) sd_bus_message *reply = NULL;
_cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL;
int r;
r = link_get_property(bus, link, &error, &reply, "org.freedesktop.network1.DHCPServer", "Leases");
if (r < 0) {
bool quiet = sd_bus_error_has_name(&error, SD_BUS_ERROR_UNKNOWN_PROPERTY);
log_full_errno(quiet ? LOG_DEBUG : LOG_WARNING,
r, "Failed to query link DHCP leases: %s", bus_error_message(&error, r));
return 0;
}
r = sd_bus_message_enter_container(reply, 'v', "a(uayayayayt)");
if (r < 0)
return bus_log_parse_error(r);
r = sd_bus_message_enter_container(reply, 'a', "(uayayayayt)");
if (r < 0)
return bus_log_parse_error(r);
while ((r = sd_bus_message_enter_container(reply, 'r', "uayayayayt")) > 0) {
_cleanup_free_ char *id = NULL, *ip = NULL;
const void *client_id, *addr, *gtw, *hwaddr;
size_t client_id_sz, sz;
uint64_t expiration;
uint32_t family;
r = sd_bus_message_read(reply, "u", &family);
if (r < 0)
return bus_log_parse_error(r);
r = sd_bus_message_read_array(reply, 'y', &client_id, &client_id_sz);
if (r < 0)
return bus_log_parse_error(r);
r = sd_bus_message_read_array(reply, 'y', &addr, &sz);
if (r < 0 || sz != 4)
return bus_log_parse_error(r);
r = sd_bus_message_read_array(reply, 'y', &gtw, &sz);
if (r < 0 || sz != 4)
return bus_log_parse_error(r);
r = sd_bus_message_read_array(reply, 'y', &hwaddr, &sz);
if (r < 0)
return bus_log_parse_error(r);
r = sd_bus_message_read_basic(reply, 't', &expiration);
if (r < 0)
return bus_log_parse_error(r);
r = sd_dhcp_client_id_to_string(client_id, client_id_sz, &id);
if (r < 0)
return bus_log_parse_error(r);
r = in_addr_to_string(family, addr, &ip);
if (r < 0)
return bus_log_parse_error(r);
r = strv_extendf(&buf, "%s (to %s)", ip, id);
if (r < 0)
return log_oom();
r = sd_bus_message_exit_container(reply);
if (r < 0)
return bus_log_parse_error(r);
}
if (r < 0)
return bus_log_parse_error(r);
r = sd_bus_message_exit_container(reply);
if (r < 0)
return bus_log_parse_error(r);
r = sd_bus_message_exit_container(reply);
if (r < 0)
return bus_log_parse_error(r);
if (strv_isempty(buf)) {
r = strv_extendf(&buf, "none");
if (r < 0)
return log_oom();
}
return dump_list(table, prefix, buf);
}
static int dump_ifindexes(Table *table, const char *prefix, const int *ifindexes) {
int r;
assert(prefix);
if (!ifindexes || ifindexes[0] <= 0)
return 0;
for (unsigned c = 0; ifindexes[c] > 0; c++) {
r = table_add_many(table,
TABLE_EMPTY,
TABLE_STRING, c == 0 ? prefix : "",
TABLE_IFINDEX, ifindexes[c]);
if (r < 0)
return table_log_add_error(r);
}
return 0;
}
#define DUMP_STATS_ONE(name, val_name) \
r = table_add_many(table, \
TABLE_EMPTY, \
TABLE_STRING, name ":"); \
if (r < 0) \
return table_log_add_error(r); \
r = table_add_cell(table, NULL, \
info->has_stats64 ? TABLE_UINT64 : TABLE_UINT32, \
info->has_stats64 ? (void*) &info->stats64.val_name : (void*) &info->stats.val_name); \
if (r < 0) \
return table_log_add_error(r);
static int dump_statistics(Table *table, const LinkInfo *info) {
int r;
if (!arg_stats)
return 0;
if (!info->has_stats64 && !info->has_stats)
return 0;
DUMP_STATS_ONE("Rx Packets", rx_packets);
DUMP_STATS_ONE("Tx Packets", tx_packets);
DUMP_STATS_ONE("Rx Bytes", rx_bytes);
DUMP_STATS_ONE("Tx Bytes", tx_bytes);
DUMP_STATS_ONE("Rx Errors", rx_errors);
DUMP_STATS_ONE("Tx Errors", tx_errors);
DUMP_STATS_ONE("Rx Dropped", rx_dropped);
DUMP_STATS_ONE("Tx Dropped", tx_dropped);
DUMP_STATS_ONE("Multicast Packets", multicast);
DUMP_STATS_ONE("Collisions", collisions);
return 0;
}
static OutputFlags get_output_flags(void) {
return
arg_all * OUTPUT_SHOW_ALL |
(arg_full || !on_tty() || pager_have()) * OUTPUT_FULL_WIDTH |
colors_enabled() * OUTPUT_COLOR;
}
static int show_logs(const LinkInfo *info) {
_cleanup_(sd_journal_closep) sd_journal *j = NULL;
int r;
if (arg_lines == 0)
return 0;
r = sd_journal_open(&j, SD_JOURNAL_LOCAL_ONLY);
if (r < 0)
return log_error_errno(r, "Failed to open journal: %m");
r = add_match_this_boot(j, NULL);
if (r < 0)
return log_error_errno(r, "Failed to add boot matches: %m");
if (info) {
char m1[STRLEN("_KERNEL_DEVICE=n") + DECIMAL_STR_MAX(int)];
const char *m2, *m3;
/* kernel */
xsprintf(m1, "_KERNEL_DEVICE=n%i", info->ifindex);
/* networkd */
m2 = strjoina("INTERFACE=", info->name);
/* udevd */
m3 = strjoina("DEVICE=", info->name);
(void)(
(r = sd_journal_add_match(j, m1, 0)) ||
(r = sd_journal_add_disjunction(j)) ||
(r = sd_journal_add_match(j, m2, 0)) ||
(r = sd_journal_add_disjunction(j)) ||
(r = sd_journal_add_match(j, m3, 0))
);
if (r < 0)
return log_error_errno(r, "Failed to add link matches: %m");
} else {
r = add_matches_for_unit(j, "systemd-networkd.service");
if (r < 0)
return log_error_errno(r, "Failed to add unit matches: %m");
r = add_matches_for_unit(j, "systemd-networkd-wait-online.service");
if (r < 0)
return log_error_errno(r, "Failed to add unit matches: %m");
}
return show_journal(
stdout,
j,
OUTPUT_SHORT,
0,
0,
arg_lines,
get_output_flags() | OUTPUT_BEGIN_NEWLINE,
NULL);
}
static int link_status_one(
sd_bus *bus,
sd_netlink *rtnl,
sd_hwdb *hwdb,
const LinkInfo *info) {
_cleanup_strv_free_ char **dns = NULL, **ntp = NULL, **sip = NULL, **search_domains = NULL, **route_domains = NULL;
_cleanup_free_ char *t = NULL, *network = NULL, *iaid = NULL, *duid = NULL,
*setup_state = NULL, *operational_state = NULL, *online_state = NULL, *lease_file = NULL, *activation_policy = NULL;
const char *driver = NULL, *path = NULL, *vendor = NULL, *model = NULL, *link = NULL,
*on_color_operational, *off_color_operational, *on_color_setup, *off_color_setup, *on_color_online;
_cleanup_free_ int *carrier_bound_to = NULL, *carrier_bound_by = NULL;
_cleanup_(sd_dhcp_lease_unrefp) sd_dhcp_lease *lease = NULL;
_cleanup_(table_unrefp) Table *table = NULL;
TableCell *cell;
int r;
assert(rtnl);
assert(info);
(void) sd_network_link_get_operational_state(info->ifindex, &operational_state);
operational_state_to_color(info->name, operational_state, &on_color_operational, &off_color_operational);
(void) sd_network_link_get_online_state(info->ifindex, &online_state);
online_state_to_color(online_state, &on_color_online, NULL);
r = sd_network_link_get_setup_state(info->ifindex, &setup_state);
if (r == -ENODATA) /* If there's no info available about this iface, it's unmanaged by networkd */
setup_state = strdup("unmanaged");
setup_state_to_color(setup_state, &on_color_setup, &off_color_setup);
(void) sd_network_link_get_dns(info->ifindex, &dns);
(void) sd_network_link_get_search_domains(info->ifindex, &search_domains);
(void) sd_network_link_get_route_domains(info->ifindex, &route_domains);
(void) sd_network_link_get_ntp(info->ifindex, &ntp);
(void) sd_network_link_get_sip(info->ifindex, &sip);
if (info->sd_device) {
(void) sd_device_get_property_value(info->sd_device, "ID_NET_LINK_FILE", &link);
(void) sd_device_get_property_value(info->sd_device, "ID_NET_DRIVER", &driver);
(void) sd_device_get_property_value(info->sd_device, "ID_PATH", &path);
if (sd_device_get_property_value(info->sd_device, "ID_VENDOR_FROM_DATABASE", &vendor) < 0)
(void) sd_device_get_property_value(info->sd_device, "ID_VENDOR", &vendor);
if (sd_device_get_property_value(info->sd_device, "ID_MODEL_FROM_DATABASE", &model) < 0)
(void) sd_device_get_property_value(info->sd_device, "ID_MODEL", &model);
}
r = link_get_type_string(info->sd_device, info->iftype, &t);
if (r == -ENOMEM)
return log_oom();
(void) sd_network_link_get_network_file(info->ifindex, &network);
(void) sd_network_link_get_carrier_bound_to(info->ifindex, &carrier_bound_to);
(void) sd_network_link_get_carrier_bound_by(info->ifindex, &carrier_bound_by);
if (asprintf(&lease_file, "/run/systemd/netif/leases/%d", info->ifindex) < 0)
return log_oom();
(void) dhcp_lease_load(&lease, lease_file);
table = table_new("dot", "key", "value");
if (!table)
return log_oom();
if (arg_full)
table_set_width(table, 0);
assert_se(cell = table_get_cell(table, 0, 0));
(void) table_set_ellipsize_percent(table, cell, 100);
assert_se(cell = table_get_cell(table, 0, 1));
(void) table_set_ellipsize_percent(table, cell, 100);
table_set_header(table, false);
r = table_add_many(table,
TABLE_STRING, special_glyph(SPECIAL_GLYPH_BLACK_CIRCLE),
TABLE_SET_COLOR, on_color_operational);
if (r < 0)
return table_log_add_error(r);
r = table_add_cell_stringf(table, &cell, "%i: %s", info->ifindex, info->name);
if (r < 0)
return table_log_add_error(r);
(void) table_set_align_percent(table, cell, 0);
r = table_add_many(table,
TABLE_EMPTY,
TABLE_EMPTY,
TABLE_STRING, "Link File:",
TABLE_SET_ALIGN_PERCENT, 100,
TABLE_STRING, strna(link),
TABLE_EMPTY,
TABLE_STRING, "Network File:",
TABLE_STRING, strna(network),
TABLE_EMPTY,
TABLE_STRING, "Type:",
TABLE_STRING, strna(t),
TABLE_EMPTY,
TABLE_STRING, "State:");
if (r < 0)
return table_log_add_error(r);
r = table_add_cell_stringf(table, NULL, "%s%s%s (%s%s%s)",
on_color_operational, strna(operational_state), off_color_operational,
on_color_setup, strna(setup_state), off_color_setup);
if (r < 0)
return table_log_add_error(r);
r = table_add_many(table,
TABLE_EMPTY,
TABLE_STRING, "Online state:",
TABLE_STRING, online_state ?: "unknown",
TABLE_SET_COLOR, on_color_online);
if (r < 0)
return table_log_add_error(r);
strv_sort(info->alternative_names);
r = dump_list(table, "Alternative Names:", info->alternative_names);
if (r < 0)
return r;
if (path) {
r = table_add_many(table,
TABLE_EMPTY,
TABLE_STRING, "Path:",
TABLE_STRING, path);
if (r < 0)
return table_log_add_error(r);
}
if (driver) {
r = table_add_many(table,
TABLE_EMPTY,
TABLE_STRING, "Driver:",
TABLE_STRING, driver);
if (r < 0)
return table_log_add_error(r);
}
if (vendor) {
r = table_add_many(table,
TABLE_EMPTY,
TABLE_STRING, "Vendor:",
TABLE_STRING, vendor);
if (r < 0)
return table_log_add_error(r);
}
if (model) {
r = table_add_many(table,
TABLE_EMPTY,
TABLE_STRING, "Model:",
TABLE_STRING, model);
if (r < 0)
return table_log_add_error(r);
}
if (info->has_mac_address) {
_cleanup_free_ char *description = NULL;
if (info->hw_address.length == ETH_ALEN)
(void) ieee_oui(hwdb, &info->hw_address.addr.ether, &description);
r = table_add_many(table,
TABLE_EMPTY,
TABLE_STRING, "HW Address:");
if (r < 0)
return table_log_add_error(r);
r = table_add_cell_stringf(table, NULL, "%s%s%s%s",
HW_ADDR_TO_STR(&info->hw_address),
description ? " (" : "",
strempty(description),
description ? ")" : "");
if (r < 0)
return table_log_add_error(r);
}
if (info->has_permanent_mac_address) {
_cleanup_free_ char *description = NULL;
char ea[ETHER_ADDR_TO_STRING_MAX];
(void) ieee_oui(hwdb, &info->permanent_mac_address, &description);
r = table_add_many(table,
TABLE_EMPTY,
TABLE_STRING, "HW Permanent Address:");
if (r < 0)
return table_log_add_error(r);
r = table_add_cell_stringf(table, NULL, "%s%s%s%s",
ether_addr_to_string(&info->permanent_mac_address, ea),
description ? " (" : "",
strempty(description),
description ? ")" : "");
if (r < 0)
return table_log_add_error(r);
}
if (info->mtu > 0) {
char min_str[DECIMAL_STR_MAX(uint32_t)], max_str[DECIMAL_STR_MAX(uint32_t)];
xsprintf(min_str, "%" PRIu32, info->min_mtu);
xsprintf(max_str, "%" PRIu32, info->max_mtu);
r = table_add_many(table,
TABLE_EMPTY,
TABLE_STRING, "MTU:");
if (r < 0)
return table_log_add_error(r);
r = table_add_cell_stringf(table, NULL, "%" PRIu32 "%s%s%s%s%s%s%s",
info->mtu,
info->min_mtu > 0 || info->max_mtu > 0 ? " (" : "",
info->min_mtu > 0 ? "min: " : "",
info->min_mtu > 0 ? min_str : "",
info->min_mtu > 0 && info->max_mtu > 0 ? ", " : "",
info->max_mtu > 0 ? "max: " : "",
info->max_mtu > 0 ? max_str : "",
info->min_mtu > 0 || info->max_mtu > 0 ? ")" : "");
if (r < 0)
return table_log_add_error(r);
}
if (info->qdisc) {
r = table_add_many(table,
TABLE_EMPTY,
TABLE_STRING, "QDisc:",
TABLE_STRING, info->qdisc);
if (r < 0)
return table_log_add_error(r);
}
if (info->master > 0) {
r = table_add_many(table,
TABLE_EMPTY,
TABLE_STRING, "Master:",
TABLE_IFINDEX, info->master);
if (r < 0)
return table_log_add_error(r);
}
if (info->has_ipv6_address_generation_mode) {
static const struct {
const char *mode;
} mode_table[] = {
{ "eui64" },
{ "none" },
{ "stable-privacy" },
{ "random" },
};
r = table_add_many(table,
TABLE_EMPTY,
TABLE_STRING, "IPv6 Address Generation Mode:",
TABLE_STRING, mode_table[info->addr_gen_mode]);
if (r < 0)
return table_log_add_error(r);
}
if (streq_ptr(info->netdev_kind, "bridge")) {
r = table_add_many(table,
TABLE_EMPTY,
TABLE_STRING, "Forward Delay:",
TABLE_TIMESPAN_MSEC, jiffies_to_usec(info->forward_delay),
TABLE_EMPTY,
TABLE_STRING, "Hello Time:",
TABLE_TIMESPAN_MSEC, jiffies_to_usec(info->hello_time),
TABLE_EMPTY,
TABLE_STRING, "Max Age:",
TABLE_TIMESPAN_MSEC, jiffies_to_usec(info->max_age),
TABLE_EMPTY,
TABLE_STRING, "Ageing Time:",
TABLE_TIMESPAN_MSEC, jiffies_to_usec(info->ageing_time),
TABLE_EMPTY,
TABLE_STRING, "Priority:",
TABLE_UINT16, info->priority,
TABLE_EMPTY,
TABLE_STRING, "STP:",
TABLE_BOOLEAN, info->stp_state > 0,
TABLE_EMPTY,
TABLE_STRING, "Multicast IGMP Version:",
TABLE_UINT8, info->mcast_igmp_version,
TABLE_EMPTY,
TABLE_STRING, "Cost:",
TABLE_UINT32, info->cost);
if (r < 0)
return table_log_add_error(r);
if (info->port_state <= BR_STATE_BLOCKING)
r = table_add_many(table,
TABLE_EMPTY,
TABLE_STRING, "Port State:",
TABLE_STRING, bridge_state_to_string(info->port_state));
} else if (streq_ptr(info->netdev_kind, "bond")) {
r = table_add_many(table,
TABLE_EMPTY,
TABLE_STRING, "Mode:",
TABLE_STRING, bond_mode_to_string(info->mode),
TABLE_EMPTY,
TABLE_STRING, "Miimon:",
TABLE_TIMESPAN_MSEC, jiffies_to_usec(info->miimon),
TABLE_EMPTY,
TABLE_STRING, "Updelay:",
TABLE_TIMESPAN_MSEC, jiffies_to_usec(info->updelay),
TABLE_EMPTY,
TABLE_STRING, "Downdelay:",
TABLE_TIMESPAN_MSEC, jiffies_to_usec(info->downdelay));
if (r < 0)
return table_log_add_error(r);
} else if (streq_ptr(info->netdev_kind, "vxlan")) {
char ttl[CONST_MAX(STRLEN("auto") + 1, DECIMAL_STR_MAX(uint8_t))];
if (info->vxlan_info.vni > 0) {
r = table_add_many(table,
TABLE_EMPTY,
TABLE_STRING, "VNI:",
TABLE_UINT32, info->vxlan_info.vni);
if (r < 0)
return table_log_add_error(r);
}
if (IN_SET(info->vxlan_info.group_family, AF_INET, AF_INET6)) {
const char *p;
r = in_addr_is_multicast(info->vxlan_info.group_family, &info->vxlan_info.group);
if (r <= 0)
p = "Remote:";
else
p = "Group:";
r = table_add_many(table,
TABLE_EMPTY,
TABLE_STRING, p,
info->vxlan_info.group_family == AF_INET ? TABLE_IN_ADDR : TABLE_IN6_ADDR,
&info->vxlan_info.group);
if (r < 0)
return table_log_add_error(r);
}
if (IN_SET(info->vxlan_info.local_family, AF_INET, AF_INET6)) {
r = table_add_many(table,
TABLE_EMPTY,
TABLE_STRING, "Local:",
info->vxlan_info.local_family == AF_INET ? TABLE_IN_ADDR : TABLE_IN6_ADDR,
&info->vxlan_info.local);
if (r < 0)
return table_log_add_error(r);
}
if (info->vxlan_info.dest_port > 0) {
r = table_add_many(table,
TABLE_EMPTY,
TABLE_STRING, "Destination Port:",
TABLE_UINT16, be16toh(info->vxlan_info.dest_port));
if (r < 0)
return table_log_add_error(r);
}
if (info->vxlan_info.link > 0) {
r = table_add_many(table,
TABLE_EMPTY,
TABLE_STRING, "Underlying Device:",
TABLE_IFINDEX, info->vxlan_info.link);
if (r < 0)
return table_log_add_error(r);
}
r = table_add_many(table,
TABLE_EMPTY,
TABLE_STRING, "Learning:",
TABLE_BOOLEAN, info->vxlan_info.learning);
if (r < 0)
return table_log_add_error(r);
r = table_add_many(table,
TABLE_EMPTY,
TABLE_STRING, "RSC:",
TABLE_BOOLEAN, info->vxlan_info.rsc);
if (r < 0)
return table_log_add_error(r);
r = table_add_many(table,
TABLE_EMPTY,
TABLE_STRING, "L3MISS:",
TABLE_BOOLEAN, info->vxlan_info.l3miss);
if (r < 0)
return table_log_add_error(r);
r = table_add_many(table,
TABLE_EMPTY,
TABLE_STRING, "L2MISS:",
TABLE_BOOLEAN, info->vxlan_info.l2miss);
if (r < 0)
return table_log_add_error(r);
if (info->vxlan_info.tos > 1) {
r = table_add_many(table,
TABLE_EMPTY,
TABLE_STRING, "TOS:",
TABLE_UINT8, info->vxlan_info.tos);
if (r < 0)
return table_log_add_error(r);
}
if (info->vxlan_info.ttl > 0)
xsprintf(ttl, "%" PRIu8, info->vxlan_info.ttl);
else
strcpy(ttl, "auto");
r = table_add_many(table,
TABLE_EMPTY,
TABLE_STRING, "TTL:",
TABLE_STRING, ttl);
if (r < 0)
return table_log_add_error(r);
} else if (streq_ptr(info->netdev_kind, "vlan") && info->vlan_id > 0) {
r = table_add_many(table,
TABLE_EMPTY,
TABLE_STRING, "VLan Id:",
TABLE_UINT16, info->vlan_id);
if (r < 0)
return table_log_add_error(r);
} else if (STRPTR_IN_SET(info->netdev_kind, "ipip", "sit", "gre", "gretap", "erspan", "vti")) {
if (in_addr_is_set(AF_INET, &info->local)) {
r = table_add_many(table,
TABLE_EMPTY,
TABLE_STRING, "Local:",
TABLE_IN_ADDR, &info->local);
if (r < 0)
return table_log_add_error(r);
}
if (in_addr_is_set(AF_INET, &info->remote)) {
r = table_add_many(table,
TABLE_EMPTY,
TABLE_STRING, "Remote:",
TABLE_IN_ADDR, &info->remote);
if (r < 0)
return table_log_add_error(r);
}
} else if (STRPTR_IN_SET(info->netdev_kind, "ip6gre", "ip6gretap", "ip6erspan", "vti6")) {
if (in_addr_is_set(AF_INET6, &info->local)) {
r = table_add_many(table,
TABLE_EMPTY,
TABLE_STRING, "Local:",
TABLE_IN6_ADDR, &info->local);
if (r < 0)
return table_log_add_error(r);
}
if (in_addr_is_set(AF_INET6, &info->remote)) {
r = table_add_many(table,
TABLE_EMPTY,
TABLE_STRING, "Remote:",
TABLE_IN6_ADDR, &info->remote);
if (r < 0)
return table_log_add_error(r);
}
} else if (streq_ptr(info->netdev_kind, "geneve")) {
r = table_add_many(table,
TABLE_EMPTY,
TABLE_STRING, "VNI:",
TABLE_UINT32, info->vni);
if (r < 0)
return table_log_add_error(r);
if (info->has_tunnel_ipv4 && in_addr_is_set(AF_INET, &info->remote)) {
r = table_add_many(table,
TABLE_EMPTY,
TABLE_STRING, "Remote:",
TABLE_IN_ADDR, &info->remote);
if (r < 0)
return table_log_add_error(r);
} else if (in_addr_is_set(AF_INET6, &info->remote)) {
r = table_add_many(table,
TABLE_EMPTY,
TABLE_STRING, "Remote:",
TABLE_IN6_ADDR, &info->remote);
if (r < 0)
return table_log_add_error(r);
}
if (info->ttl > 0) {
r = table_add_many(table,
TABLE_EMPTY,
TABLE_STRING, "TTL:",
TABLE_UINT8, info->ttl);
if (r < 0)
return table_log_add_error(r);
}
if (info->tos > 0) {
r = table_add_many(table,
TABLE_EMPTY,
TABLE_STRING, "TOS:",
TABLE_UINT8, info->tos);
if (r < 0)
return table_log_add_error(r);
}
r = table_add_many(table,
TABLE_EMPTY,
TABLE_STRING, "Port:",
TABLE_UINT16, info->tunnel_port);
if (r < 0)
return table_log_add_error(r);
r = table_add_many(table,
TABLE_EMPTY,
TABLE_STRING, "Inherit:",
TABLE_STRING, geneve_df_to_string(info->inherit));
if (r < 0)
return table_log_add_error(r);
if (info->df > 0) {
r = table_add_many(table,
TABLE_EMPTY,
TABLE_STRING, "IPDoNotFragment:",
TABLE_UINT8, info->df);
if (r < 0)
return table_log_add_error(r);
}
r = table_add_many(table,
TABLE_EMPTY,
TABLE_STRING, "UDPChecksum:",
TABLE_BOOLEAN, info->csum);
if (r < 0)
return table_log_add_error(r);
r = table_add_many(table,
TABLE_EMPTY,
TABLE_STRING, "UDP6ZeroChecksumTx:",
TABLE_BOOLEAN, info->csum6_tx);
if (r < 0)
return table_log_add_error(r);
r = table_add_many(table,
TABLE_EMPTY,
TABLE_STRING, "UDP6ZeroChecksumRx:",
TABLE_BOOLEAN, info->csum6_rx);
if (r < 0)
return table_log_add_error(r);
if (info->label > 0) {
r = table_add_many(table,
TABLE_EMPTY,
TABLE_STRING, "FlowLabel:",
TABLE_UINT32, info->label);
if (r < 0)
return table_log_add_error(r);
}
} else if (STRPTR_IN_SET(info->netdev_kind, "macvlan", "macvtap")) {
r = table_add_many(table,
TABLE_EMPTY,
TABLE_STRING, "Mode:",
TABLE_STRING, macvlan_mode_to_string(info->macvlan_mode));
if (r < 0)
return table_log_add_error(r);
} else if (streq_ptr(info->netdev_kind, "ipvlan")) {
_cleanup_free_ char *p = NULL, *s = NULL;
if (info->ipvlan_flags & IPVLAN_F_PRIVATE)
p = strdup("private");
else if (info->ipvlan_flags & IPVLAN_F_VEPA)
p = strdup("vepa");
else
p = strdup("bridge");
if (!p)
log_oom();
s = strjoin(ipvlan_mode_to_string(info->ipvlan_mode), " (", p, ")");
if (!s)
return log_oom();
r = table_add_many(table,
TABLE_EMPTY,
TABLE_STRING, "Mode:",
TABLE_STRING, s);
if (r < 0)
return table_log_add_error(r);
}
if (info->has_wlan_link_info) {
_cleanup_free_ char *esc = NULL;
char buf[ETHER_ADDR_TO_STRING_MAX];
r = table_add_many(table,
TABLE_EMPTY,
TABLE_STRING, "WiFi access point:");
if (r < 0)
return table_log_add_error(r);
if (info->ssid)
esc = cescape(info->ssid);
r = table_add_cell_stringf(table, NULL, "%s (%s)",
strnull(esc),
ether_addr_to_string(&info->bssid, buf));
if (r < 0)
return table_log_add_error(r);
}
if (info->has_bitrates) {
char tx[FORMAT_BYTES_MAX], rx[FORMAT_BYTES_MAX];
r = table_add_many(table,
TABLE_EMPTY,
TABLE_STRING, "Bit Rate (Tx/Rx):");
if (r < 0)
return table_log_add_error(r);
r = table_add_cell_stringf(table, NULL, "%sbps/%sbps",
format_bytes_full(tx, sizeof tx, info->tx_bitrate, 0),
format_bytes_full(rx, sizeof rx, info->rx_bitrate, 0));
if (r < 0)
return table_log_add_error(r);
}
if (info->has_tx_queues || info->has_rx_queues) {
r = table_add_many(table,
TABLE_EMPTY,
TABLE_STRING, "Queue Length (Tx/Rx):");
if (r < 0)
return table_log_add_error(r);
r = table_add_cell_stringf(table, NULL, "%" PRIu32 "/%" PRIu32, info->tx_queues, info->rx_queues);
if (r < 0)
return table_log_add_error(r);
}
if (info->has_ethtool_link_info) {
const char *duplex = duplex_to_string(info->duplex);
const char *port = port_to_string(info->port);
if (IN_SET(info->autonegotiation, AUTONEG_DISABLE, AUTONEG_ENABLE)) {
r = table_add_many(table,
TABLE_EMPTY,
TABLE_STRING, "Auto negotiation:",
TABLE_BOOLEAN, info->autonegotiation == AUTONEG_ENABLE);
if (r < 0)
return table_log_add_error(r);
}
if (info->speed > 0) {
r = table_add_many(table,
TABLE_EMPTY,
TABLE_STRING, "Speed:",
TABLE_BPS, info->speed);
if (r < 0)
return table_log_add_error(r);
}
if (duplex) {
r = table_add_many(table,
TABLE_EMPTY,
TABLE_STRING, "Duplex:",
TABLE_STRING, duplex);
if (r < 0)
return table_log_add_error(r);
}
if (port) {
r = table_add_many(table,
TABLE_EMPTY,
TABLE_STRING, "Port:",
TABLE_STRING, port);
if (r < 0)
return table_log_add_error(r);
}
}
r = dump_addresses(rtnl, lease, table, info->ifindex);
if (r < 0)
return r;
r = dump_gateways(rtnl, hwdb, table, info->ifindex);
if (r < 0)
return r;
r = dump_list(table, "DNS:", dns);
if (r < 0)
return r;
r = dump_list(table, "Search Domains:", search_domains);
if (r < 0)
return r;
r = dump_list(table, "Route Domains:", route_domains);
if (r < 0)
return r;
r = dump_list(table, "NTP:", ntp);
if (r < 0)
return r;
r = dump_list(table, "SIP:", sip);
if (r < 0)
return r;
r = dump_ifindexes(table, "Carrier Bound To:", carrier_bound_to);
if (r < 0)
return r;
r = dump_ifindexes(table, "Carrier Bound By:", carrier_bound_by);
if (r < 0)
return r;
r = sd_network_link_get_activation_policy(info->ifindex, &activation_policy);
if (r >= 0) {
r = table_add_many(table,
TABLE_EMPTY,
TABLE_STRING, "Activation Policy:",
TABLE_STRING, activation_policy);
if (r < 0)
return table_log_add_error(r);
}
if (lease) {
const void *client_id;
size_t client_id_len;
const char *tz;
r = sd_dhcp_lease_get_timezone(lease, &tz);
if (r >= 0) {
r = table_add_many(table,
TABLE_EMPTY,
TABLE_STRING, "Time Zone:",
TABLE_STRING, tz);
if (r < 0)
return table_log_add_error(r);
}
r = sd_dhcp_lease_get_client_id(lease, &client_id, &client_id_len);
if (r >= 0) {
_cleanup_free_ char *id = NULL;
r = sd_dhcp_client_id_to_string(client_id, client_id_len, &id);
if (r >= 0) {
r = table_add_many(table,
TABLE_EMPTY,
TABLE_STRING, "DHCP4 Client ID:",
TABLE_STRING, id);
if (r < 0)
return table_log_add_error(r);
}
}
}
r = sd_network_link_get_dhcp6_client_iaid_string(info->ifindex, &iaid);
if (r >= 0) {
r = table_add_many(table,
TABLE_EMPTY,
TABLE_STRING, "DHCP6 Client IAID:",
TABLE_STRING, iaid);
if (r < 0)
return table_log_add_error(r);
}
r = sd_network_link_get_dhcp6_client_duid_string(info->ifindex, &duid);
if (r >= 0) {
r = table_add_many(table,
TABLE_EMPTY,
TABLE_STRING, "DHCP6 Client DUID:",
TABLE_STRING, duid);
if (r < 0)
return table_log_add_error(r);
}
r = dump_lldp_neighbors(table, "Connected To:", info->ifindex);
if (r < 0)
return r;
r = dump_dhcp_leases(table, "Offered DHCP leases:", bus, info);
if (r < 0)
return r;
r = dump_statistics(table, info);
if (r < 0)
return r;
r = table_print(table, NULL);
if (r < 0)
return table_log_print_error(r);
return show_logs(info);
}
static int system_status(sd_netlink *rtnl, sd_hwdb *hwdb) {
_cleanup_free_ char *operational_state = NULL, *online_state = NULL;
_cleanup_strv_free_ char **dns = NULL, **ntp = NULL, **search_domains = NULL, **route_domains = NULL;
const char *on_color_operational, *on_color_online;
_cleanup_(table_unrefp) Table *table = NULL;
TableCell *cell;
int r;
assert(rtnl);
(void) sd_network_get_operational_state(&operational_state);
operational_state_to_color(NULL, operational_state, &on_color_operational, NULL);
(void) sd_network_get_online_state(&online_state);
online_state_to_color(online_state, &on_color_online, NULL);
table = table_new("dot", "key", "value");
if (!table)
return log_oom();
if (arg_full)
table_set_width(table, 0);
assert_se(cell = table_get_cell(table, 0, 0));
(void) table_set_ellipsize_percent(table, cell, 100);
assert_se(cell = table_get_cell(table, 0, 1));
(void) table_set_align_percent(table, cell, 100);
(void) table_set_ellipsize_percent(table, cell, 100);
table_set_header(table, false);
r = table_add_many(table,
TABLE_STRING, special_glyph(SPECIAL_GLYPH_BLACK_CIRCLE),
TABLE_SET_COLOR, on_color_operational,
TABLE_STRING, "State:",
TABLE_STRING, strna(operational_state),
TABLE_SET_COLOR, on_color_operational,
TABLE_EMPTY,
TABLE_STRING, "Online state:",
TABLE_STRING, online_state ?: "unknown",
TABLE_SET_COLOR, on_color_online);
if (r < 0)
return table_log_add_error(r);
r = dump_addresses(rtnl, NULL, table, 0);
if (r < 0)
return r;
r = dump_gateways(rtnl, hwdb, table, 0);
if (r < 0)
return r;
(void) sd_network_get_dns(&dns);
r = dump_list(table, "DNS:", dns);
if (r < 0)
return r;
(void) sd_network_get_search_domains(&search_domains);
r = dump_list(table, "Search Domains:", search_domains);
if (r < 0)
return r;
(void) sd_network_get_route_domains(&route_domains);
r = dump_list(table, "Route Domains:", route_domains);
if (r < 0)
return r;
(void) sd_network_get_ntp(&ntp);
r = dump_list(table, "NTP:", ntp);
if (r < 0)
return r;
r = table_print(table, NULL);
if (r < 0)
return table_log_print_error(r);
return show_logs(NULL);
}
static int link_status(int argc, char *argv[], void *userdata) {
_cleanup_(sd_bus_flush_close_unrefp) sd_bus *bus = NULL;
_cleanup_(sd_netlink_unrefp) sd_netlink *rtnl = NULL;
_cleanup_(sd_hwdb_unrefp) sd_hwdb *hwdb = NULL;
_cleanup_(link_info_array_freep) LinkInfo *links = NULL;
int r, c;
if (arg_json_format_flags != JSON_FORMAT_OFF) {
if (arg_all || argc <= 1)
return dump_manager_description();
else
return dump_link_description(strv_skip(argv, 1));
}
(void) pager_open(arg_pager_flags);
r = sd_bus_open_system(&bus);
if (r < 0)
return log_error_errno(r, "Failed to connect system bus: %m");
r = sd_netlink_open(&rtnl);
if (r < 0)
return log_error_errno(r, "Failed to connect to netlink: %m");
r = sd_hwdb_new(&hwdb);
if (r < 0)
log_debug_errno(r, "Failed to open hardware database: %m");
if (arg_all)
c = acquire_link_info(bus, rtnl, NULL, &links);
else if (argc <= 1)
return system_status(rtnl, hwdb);
else
c = acquire_link_info(bus, rtnl, argv + 1, &links);
if (c < 0)
return c;
for (int i = 0; i < c; i++) {
if (i > 0)
fputc('\n', stdout);
link_status_one(bus, rtnl, hwdb, links + i);
}
return 0;
}
static char *lldp_capabilities_to_string(uint16_t x) {
static const char characters[] = {
'o', 'p', 'b', 'w', 'r', 't', 'd', 'a', 'c', 's', 'm',
};
char *ret;
unsigned i;
ret = new(char, ELEMENTSOF(characters) + 1);
if (!ret)
return NULL;
for (i = 0; i < ELEMENTSOF(characters); i++)
ret[i] = (x & (1U << i)) ? characters[i] : '.';
ret[i] = 0;
return ret;
}
static void lldp_capabilities_legend(uint16_t x) {
unsigned cols = columns();
static const char* const table[] = {
"o - Other",
"p - Repeater",
"b - Bridge",
"w - WLAN Access Point",
"r - Router",
"t - Telephone",
"d - DOCSIS cable device",
"a - Station",
"c - Customer VLAN",
"s - Service VLAN",
"m - Two-port MAC Relay (TPMR)",
};
if (x == 0)
return;
printf("\nCapability Flags:\n");
for (unsigned w = 0, i = 0; i < ELEMENTSOF(table); i++)
if (x & (1U << i) || arg_all) {
bool newline;
newline = w + strlen(table[i]) + (w == 0 ? 0 : 2) > cols;
if (newline)
w = 0;
w += printf("%s%s%s", newline ? "\n" : "", w == 0 ? "" : "; ", table[i]);
}
puts("");
}
static int link_lldp_status(int argc, char *argv[], void *userdata) {
_cleanup_(sd_netlink_unrefp) sd_netlink *rtnl = NULL;
_cleanup_(link_info_array_freep) LinkInfo *links = NULL;
_cleanup_(table_unrefp) Table *table = NULL;
int r, c, m = 0;
uint16_t all = 0;
TableCell *cell;
r = sd_netlink_open(&rtnl);
if (r < 0)
return log_error_errno(r, "Failed to connect to netlink: %m");
c = acquire_link_info(NULL, rtnl, argc > 1 ? argv + 1 : NULL, &links);
if (c < 0)
return c;
(void) pager_open(arg_pager_flags);
table = table_new("link",
"chassis id",
"system name",
"caps",
"port id",
"port description");
if (!table)
return log_oom();
if (arg_full)
table_set_width(table, 0);
table_set_header(table, arg_legend);
assert_se(cell = table_get_cell(table, 0, 0));
table_set_minimum_width(table, cell, 16);
assert_se(cell = table_get_cell(table, 0, 1));
table_set_minimum_width(table, cell, 17);
assert_se(cell = table_get_cell(table, 0, 2));
table_set_minimum_width(table, cell, 16);
assert_se(cell = table_get_cell(table, 0, 3));
table_set_minimum_width(table, cell, 11);
assert_se(cell = table_get_cell(table, 0, 4));
table_set_minimum_width(table, cell, 17);
assert_se(cell = table_get_cell(table, 0, 5));
table_set_minimum_width(table, cell, 16);
for (int i = 0; i < c; i++) {
_cleanup_fclose_ FILE *f = NULL;
r = open_lldp_neighbors(links[i].ifindex, &f);
if (r == -ENOENT)
continue;
if (r < 0) {
log_warning_errno(r, "Failed to open LLDP data for %i, ignoring: %m", links[i].ifindex);
continue;
}
for (;;) {
_cleanup_free_ char *cid = NULL, *pid = NULL, *sname = NULL, *pdesc = NULL, *capabilities = NULL;
const char *chassis_id = NULL, *port_id = NULL, *system_name = NULL, *port_description = NULL;
_cleanup_(sd_lldp_neighbor_unrefp) sd_lldp_neighbor *n = NULL;
uint16_t cc;
r = next_lldp_neighbor(f, &n);
if (r < 0) {
log_warning_errno(r, "Failed to read neighbor data: %m");
break;
}
if (r == 0)
break;
(void) sd_lldp_neighbor_get_chassis_id_as_string(n, &chassis_id);
(void) sd_lldp_neighbor_get_port_id_as_string(n, &port_id);
(void) sd_lldp_neighbor_get_system_name(n, &system_name);
(void) sd_lldp_neighbor_get_port_description(n, &port_description);
if (chassis_id) {
cid = ellipsize(chassis_id, 17, 100);
if (cid)
chassis_id = cid;
}
if (port_id) {
pid = ellipsize(port_id, 17, 100);
if (pid)
port_id = pid;
}
if (system_name) {
sname = ellipsize(system_name, 16, 100);
if (sname)
system_name = sname;
}
if (port_description) {
pdesc = ellipsize(port_description, 16, 100);
if (pdesc)
port_description = pdesc;
}
if (sd_lldp_neighbor_get_enabled_capabilities(n, &cc) >= 0) {
capabilities = lldp_capabilities_to_string(cc);
all |= cc;
}
r = table_add_many(table,
TABLE_STRING, links[i].name,
TABLE_STRING, strna(chassis_id),
TABLE_STRING, strna(system_name),
TABLE_STRING, strna(capabilities),
TABLE_STRING, strna(port_id),
TABLE_STRING, strna(port_description));
if (r < 0)
return table_log_add_error(r);
m++;
}
}
r = table_print(table, NULL);
if (r < 0)
return table_log_print_error(r);
if (arg_legend) {
lldp_capabilities_legend(all);
printf("\n%i neighbors listed.\n", m);
}
return 0;
}
static int link_delete_send_message(sd_netlink *rtnl, int index) {
_cleanup_(sd_netlink_message_unrefp) sd_netlink_message *req = NULL;
int r;
assert(rtnl);
r = sd_rtnl_message_new_link(rtnl, &req, RTM_DELLINK, index);
if (r < 0)
return rtnl_log_create_error(r);
r = sd_netlink_call(rtnl, req, 0, NULL);
if (r < 0)
return r;
return 0;
}
static int link_up_down_send_message(sd_netlink *rtnl, char *command, int index) {
_cleanup_(sd_netlink_message_unrefp) sd_netlink_message *req = NULL;
int r;
assert(rtnl);
r = sd_rtnl_message_new_link(rtnl, &req, RTM_SETLINK, index);
if (r < 0)
return rtnl_log_create_error(r);
if (streq(command, "up"))
r = sd_rtnl_message_link_set_flags(req, IFF_UP, IFF_UP);
else
r = sd_rtnl_message_link_set_flags(req, 0, IFF_UP);
if (r < 0)
return log_error_errno(r, "Could not set link flags: %m");
r = sd_netlink_call(rtnl, req, 0, NULL);
if (r < 0)
return r;
return 0;
}
static int link_up_down(int argc, char *argv[], void *userdata) {
_cleanup_(sd_netlink_unrefp) sd_netlink *rtnl = NULL;
_cleanup_set_free_ Set *indexes = NULL;
int index, r;
void *p;
r = sd_netlink_open(&rtnl);
if (r < 0)
return log_error_errno(r, "Failed to connect to netlink: %m");
indexes = set_new(NULL);
if (!indexes)
return log_oom();
for (int i = 1; i < argc; i++) {
index = resolve_interface_or_warn(&rtnl, argv[i]);
if (index < 0)
return index;
r = set_put(indexes, INT_TO_PTR(index));
if (r < 0)
return log_oom();
}
SET_FOREACH(p, indexes) {
index = PTR_TO_INT(p);
r = link_up_down_send_message(rtnl, argv[0], index);
if (r < 0) {
char ifname[IF_NAMESIZE + 1];
return log_error_errno(r, "Failed to bring %s interface %s: %m",
argv[0], format_ifname_full(index, ifname, FORMAT_IFNAME_IFINDEX));
}
}
return r;
}
static int link_delete(int argc, char *argv[], void *userdata) {
_cleanup_(sd_netlink_unrefp) sd_netlink *rtnl = NULL;
_cleanup_set_free_ Set *indexes = NULL;
int index, r;
void *p;
r = sd_netlink_open(&rtnl);
if (r < 0)
return log_error_errno(r, "Failed to connect to netlink: %m");
indexes = set_new(NULL);
if (!indexes)
return log_oom();
for (int i = 1; i < argc; i++) {
index = resolve_interface_or_warn(&rtnl, argv[i]);
if (index < 0)
return index;
r = set_put(indexes, INT_TO_PTR(index));
if (r < 0)
return log_oom();
}
SET_FOREACH(p, indexes) {
index = PTR_TO_INT(p);
r = link_delete_send_message(rtnl, index);
if (r < 0) {
char ifname[IF_NAMESIZE + 1];
return log_error_errno(r, "Failed to delete interface %s: %m",
format_ifname_full(index, ifname, FORMAT_IFNAME_IFINDEX));
}
}
return r;
}
static int link_renew_one(sd_bus *bus, int index, const char *name) {
_cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL;
int r;
r = bus_call_method(bus, bus_network_mgr, "RenewLink", &error, NULL, "i", index);
if (r < 0)
return log_error_errno(r, "Failed to renew dynamic configuration of interface %s: %s",
name, bus_error_message(&error, r));
return 0;
}
static int link_renew(int argc, char *argv[], void *userdata) {
_cleanup_(sd_bus_flush_close_unrefp) sd_bus *bus = NULL;
_cleanup_(sd_netlink_unrefp) sd_netlink *rtnl = NULL;
int index, k = 0, r;
r = sd_bus_open_system(&bus);
if (r < 0)
return log_error_errno(r, "Failed to connect system bus: %m");
for (int i = 1; i < argc; i++) {
index = resolve_interface_or_warn(&rtnl, argv[i]);
if (index < 0)
return index;
r = link_renew_one(bus, index, argv[i]);
if (r < 0 && k >= 0)
k = r;
}
return k;
}
static int link_force_renew_one(sd_bus *bus, int index, const char *name) {
_cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL;
int r;
r = bus_call_method(bus, bus_network_mgr, "ForceRenewLink", &error, NULL, "i", index);
if (r < 0)
return log_error_errno(r, "Failed to force renew dynamic configuration of interface %s: %s",
name, bus_error_message(&error, r));
return 0;
}
static int link_force_renew(int argc, char *argv[], void *userdata) {
_cleanup_(sd_bus_flush_close_unrefp) sd_bus *bus = NULL;
_cleanup_(sd_netlink_unrefp) sd_netlink *rtnl = NULL;
int k = 0, r;
r = sd_bus_open_system(&bus);
if (r < 0)
return log_error_errno(r, "Failed to connect system bus: %m");
for (int i = 1; i < argc; i++) {
int index = resolve_interface_or_warn(&rtnl, argv[i]);
if (index < 0)
return index;
r = link_force_renew_one(bus, index, argv[i]);
if (r < 0 && k >= 0)
k = r;
}
return k;
}
static int verb_reload(int argc, char *argv[], void *userdata) {
_cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL;
_cleanup_(sd_bus_flush_close_unrefp) sd_bus *bus = NULL;
int r;
r = sd_bus_open_system(&bus);
if (r < 0)
return log_error_errno(r, "Failed to connect system bus: %m");
r = bus_call_method(bus, bus_network_mgr, "Reload", &error, NULL, NULL);
if (r < 0)
return log_error_errno(r, "Failed to reload network settings: %m");
return 0;
}
static int verb_reconfigure(int argc, char *argv[], void *userdata) {
_cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL;
_cleanup_(sd_bus_flush_close_unrefp) sd_bus *bus = NULL;
_cleanup_(sd_netlink_unrefp) sd_netlink *rtnl = NULL;
_cleanup_set_free_ Set *indexes = NULL;
int index, r;
void *p;
r = sd_bus_open_system(&bus);
if (r < 0)
return log_error_errno(r, "Failed to connect system bus: %m");
indexes = set_new(NULL);
if (!indexes)
return log_oom();
for (int i = 1; i < argc; i++) {
index = resolve_interface_or_warn(&rtnl, argv[i]);
if (index < 0)
return index;
r = set_put(indexes, INT_TO_PTR(index));
if (r < 0)
return log_oom();
}
SET_FOREACH(p, indexes) {
index = PTR_TO_INT(p);
r = bus_call_method(bus, bus_network_mgr, "ReconfigureLink", &error, NULL, "i", index);
if (r < 0) {
char ifname[IF_NAMESIZE + 1];
return log_error_errno(r, "Failed to reconfigure network interface %s: %m",
format_ifname_full(index, ifname, FORMAT_IFNAME_IFINDEX));
}
}
return 0;
}
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"
"\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"
" -a --all Show status for all links\n"
" -s --stats Show detailed link statics\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"
"\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_JSON,
};
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' },
{ "stats", no_argument, NULL, 's' },
{ "full", no_argument, NULL, 'l' },
{ "lines", required_argument, NULL, 'n' },
{ "json", required_argument, NULL, ARG_JSON },
{}
};
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 '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("Unhandled option");
}
}
return 1;
}
static int networkctl_main(int argc, char *argv[]) {
static const Verb verbs[] = {
{ "list", VERB_ANY, VERB_ANY, VERB_DEFAULT, list_links },
{ "status", VERB_ANY, VERB_ANY, 0, 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, 0, link_renew },
{ "forcerenew", 2, VERB_ANY, 0, link_force_renew },
{ "reconfigure", 2, VERB_ANY, 0, verb_reconfigure },
{ "reload", 1, 1, 0, verb_reload },
{}
};
return dispatch_verb(argc, argv, verbs, NULL);
}
static void warn_networkd_missing(void) {
if (access("/run/systemd/netif/state", F_OK) >= 0)
return;
fprintf(stderr, "WARNING: systemd-networkd is not running, output will be incomplete.\n\n");
}
static int run(int argc, char* argv[]) {
int r;
log_setup();
r = parse_argv(argc, argv);
if (r <= 0)
return r;
warn_networkd_missing();
return networkctl_main(argc, argv);
}
DEFINE_MAIN_FUNCTION(run);
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