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src.rivoreo.one / systemd-stable / v247 / . / src / network / networkctl.c
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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 "pager.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 void operational_state_to_color(const char *name, const char *state, const char **on, const char **off) {
assert(on);
assert(off);
if (STRPTR_IN_SET(state, "routable", "enslaved") ||
(streq_ptr(name, "lo") && streq_ptr(state, "carrier"))) {
*on = ansi_highlight_green();
*off = ansi_normal();
} else if (streq_ptr(state, "degraded")) {
*on = ansi_highlight_yellow();
*off = ansi_normal();
} else
*on = *off = "";
}
static void setup_state_to_color(const char *state, const char **on, const char **off) {
assert(on);
assert(off);
if (streq_ptr(state, "configured")) {
*on = ansi_highlight_green();
*off = ansi_normal();
} else if (streq_ptr(state, "configuring")) {
*on = ansi_highlight_yellow();
*off = ansi_normal();
} else if (STRPTR_IN_SET(state, "failed", "linger")) {
*on = ansi_highlight_red();
*off = ansi_normal();
} else
*on = *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 const 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, j;
sd_netlink_message *i;
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 (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 (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, i, r;
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);
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 (i = 0; i < c; i++) {
_cleanup_free_ char *setup_state = NULL, *operational_state = NULL;
const char *on_color_operational, *off_color_operational,
*on_color_setup, *off_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, &off_color_operational);
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, &off_color_setup);
t = link_get_type_string(links[i].iftype, links[i].sd_device);
r = table_add_many(table,
TABLE_INT, links[i].ifindex,
TABLE_STRING, links[i].name,
TABLE_STRING, strna(t),
TABLE_STRING, strna(operational_state),
TABLE_SET_COLOR, on_color_operational,
TABLE_STRING, strna(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;
sd_netlink_message *m;
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 (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, i;
assert(rtnl);
assert(table);
n = local_gateways(rtnl, ifindex, AF_UNSPEC, &local);
if (n <= 0)
return n;
for (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, i;
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 (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;
sd_netlink_message *m;
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, (size_t) SIZE_MAX);
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 (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) {
unsigned c;
int r;
assert(prefix);
if (!ifindexes || ifindexes[0] <= 0)
return 0;
for (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, *lease_file = 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;
_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);
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);
}
t = link_get_type_string(info->iftype, info->sd_device);
(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);
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_null(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_null(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_null(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_null(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_null(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_null(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;
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;
_cleanup_strv_free_ char **dns = NULL, **ntp = NULL, **search_domains = NULL, **route_domains = NULL;
const char *on_color_operational, *off_color_operational;
_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, &off_color_operational);
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);
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, i;
(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 (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 w, i, 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 (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 i, 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 (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, i;
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 (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 %s interface %s: %m",
argv[1], 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, i;
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 (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, i, k = 0, r;
r = sd_bus_open_system(&bus);
if (r < 0)
return log_error_errno(r, "Failed to connect system bus: %m");
for (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 index, i, k = 0, r;
r = sd_bus_open_system(&bus);
if (r < 0)
return log_error_errno(r, "Failed to connect system bus: %m");
for (i = 1; i < argc; i++) {
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, i, 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 (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"
"\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,
};
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' },
{}
};
int c;
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 '?':
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_cli();
r = parse_argv(argc, argv);
if (r <= 0)
return r;
warn_networkd_missing();
return networkctl_main(argc, argv);
}
DEFINE_MAIN_FUNCTION(run);