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Merge pull request #30380 from keszybz/tmpfiles-dry-run
[thirdparty/systemd.git] / src / network / networkctl.c
1 /* SPDX-License-Identifier: LGPL-2.1-or-later */
2
3 #include <arpa/inet.h>
4 #include <getopt.h>
5 #include <linux/if_addrlabel.h>
6 #include <net/if.h>
7 #include <stdbool.h>
8 #include <sys/stat.h>
9 #include <sys/types.h>
10 #include <unistd.h>
11 #include <linux/if_bridge.h>
12 #include <linux/if_tunnel.h>
13
14 #include "sd-bus.h"
15 #include "sd-device.h"
16 #include "sd-dhcp-client.h"
17 #include "sd-hwdb.h"
18 #include "sd-lldp-rx.h"
19 #include "sd-netlink.h"
20 #include "sd-network.h"
21
22 #include "alloc-util.h"
23 #include "bond-util.h"
24 #include "bridge-util.h"
25 #include "build.h"
26 #include "bus-common-errors.h"
27 #include "bus-error.h"
28 #include "bus-locator.h"
29 #include "device-util.h"
30 #include "escape.h"
31 #include "ether-addr-util.h"
32 #include "ethtool-util.h"
33 #include "fd-util.h"
34 #include "format-table.h"
35 #include "format-util.h"
36 #include "fs-util.h"
37 #include "geneve-util.h"
38 #include "glob-util.h"
39 #include "hwdb-util.h"
40 #include "ipvlan-util.h"
41 #include "local-addresses.h"
42 #include "locale-util.h"
43 #include "logs-show.h"
44 #include "macro.h"
45 #include "macvlan-util.h"
46 #include "main-func.h"
47 #include "netif-util.h"
48 #include "netlink-util.h"
49 #include "network-internal.h"
50 #include "network-util.h"
51 #include "networkctl.h"
52 #include "networkctl-config-file.h"
53 #include "pager.h"
54 #include "parse-argument.h"
55 #include "parse-util.h"
56 #include "path-lookup.h"
57 #include "path-util.h"
58 #include "pretty-print.h"
59 #include "set.h"
60 #include "sigbus.h"
61 #include "socket-netlink.h"
62 #include "socket-util.h"
63 #include "sort-util.h"
64 #include "sparse-endian.h"
65 #include "stdio-util.h"
66 #include "string-table.h"
67 #include "string-util.h"
68 #include "strv.h"
69 #include "strxcpyx.h"
70 #include "terminal-util.h"
71 #include "udev-util.h"
72 #include "unit-def.h"
73 #include "varlink.h"
74 #include "verbs.h"
75 #include "wifi-util.h"
76
77 /* Kernel defines MODULE_NAME_LEN as 64 - sizeof(unsigned long). So, 64 is enough. */
78 #define NETDEV_KIND_MAX 64
79
80 /* use 128 kB for receive socket kernel queue, we shouldn't need more here */
81 #define RCVBUF_SIZE (128*1024)
82
83 PagerFlags arg_pager_flags = 0;
84 bool arg_legend = true;
85 bool arg_no_reload = false;
86 bool arg_all = false;
87 bool arg_stats = false;
88 bool arg_full = false;
89 bool arg_runtime = false;
90 unsigned arg_lines = 10;
91 char *arg_drop_in = NULL;
92 JsonFormatFlags arg_json_format_flags = JSON_FORMAT_OFF;
93
94 STATIC_DESTRUCTOR_REGISTER(arg_drop_in, freep);
95
96 static int check_netns_match(void) {
97 struct stat st;
98 uint64_t id;
99 JsonVariant *reply = NULL;
100 _cleanup_(varlink_unrefp) Varlink *vl = NULL;
101 int r;
102
103 r = varlink_connect_address(&vl, "/run/systemd/netif/io.systemd.Network");
104 if (r < 0)
105 return log_error_errno(r, "Failed to connect to network service /run/systemd/netif/io.systemd.Network: %m");
106
107 r = varlink_call_and_log(vl, "io.systemd.Network.GetNamespaceId", /* parameters= */ NULL, &reply);
108 if (r < 0)
109 return r;
110
111 static const JsonDispatch dispatch_table[] = {
112 { "NamespaceId", JSON_VARIANT_UNSIGNED, json_dispatch_uint64, 0, JSON_MANDATORY },
113 {},
114 };
115
116 r = json_dispatch(reply, dispatch_table, JSON_LOG|JSON_ALLOW_EXTENSIONS, &id);
117 if (r < 0)
118 return r;
119
120 if (id == 0) {
121 log_debug("systemd-networkd.service not running in a network namespace (?), skipping netns check.");
122 return 0;
123 }
124
125 if (stat("/proc/self/ns/net", &st) < 0)
126 return log_error_errno(errno, "Failed to determine our own network namespace ID: %m");
127
128 if (id != st.st_ino)
129 return log_error_errno(SYNTHETIC_ERRNO(EREMOTE),
130 "networkctl must be invoked in same network namespace as systemd-networkd.service.");
131
132 return 0;
133 }
134
135 bool networkd_is_running(void) {
136 static int cached = -1;
137 int r;
138
139 if (cached < 0) {
140 r = access("/run/systemd/netif/state", F_OK);
141 if (r < 0) {
142 if (errno != ENOENT)
143 log_debug_errno(errno,
144 "Failed to determine whether networkd is running, assuming it's not: %m");
145
146 cached = false;
147 } else
148 cached = true;
149 }
150
151 return cached;
152 }
153
154 int acquire_bus(sd_bus **ret) {
155 _cleanup_(sd_bus_flush_close_unrefp) sd_bus *bus = NULL;
156 int r;
157
158 assert(ret);
159
160 r = sd_bus_open_system(&bus);
161 if (r < 0)
162 return log_error_errno(r, "Failed to connect to system bus: %m");
163
164 if (networkd_is_running()) {
165 r = check_netns_match();
166 if (r < 0)
167 return r;
168 } else
169 log_warning("systemd-networkd is not running, output might be incomplete.");
170
171 *ret = TAKE_PTR(bus);
172 return 0;
173 }
174
175 static int get_description(sd_bus *bus, JsonVariant **ret) {
176 _cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL;
177 _cleanup_(sd_bus_message_unrefp) sd_bus_message *reply = NULL;
178 const char *text;
179 int r;
180
181 assert(bus);
182 assert(ret);
183
184 r = bus_call_method(bus, bus_network_mgr, "Describe", &error, &reply, NULL);
185 if (r < 0)
186 return log_error_errno(r, "Failed to get description: %s", bus_error_message(&error, r));
187
188 r = sd_bus_message_read(reply, "s", &text);
189 if (r < 0)
190 return bus_log_parse_error(r);
191
192 r = json_parse(text, 0, ret, NULL, NULL);
193 if (r < 0)
194 return log_error_errno(r, "Failed to parse JSON: %m");
195
196 return 0;
197 }
198
199 static int dump_manager_description(sd_bus *bus) {
200 _cleanup_(json_variant_unrefp) JsonVariant *v = NULL;
201 int r;
202
203 assert(bus);
204
205 r = get_description(bus, &v);
206 if (r < 0)
207 return r;
208
209 json_variant_dump(v, arg_json_format_flags, NULL, NULL);
210 return 0;
211 }
212
213 static int dump_link_description(sd_bus *bus, char * const *patterns) {
214 _cleanup_(json_variant_unrefp) JsonVariant *v = NULL;
215 _cleanup_free_ bool *matched_patterns = NULL;
216 JsonVariant *i;
217 size_t c = 0;
218 int r;
219
220 assert(bus);
221 assert(patterns);
222
223 r = get_description(bus, &v);
224 if (r < 0)
225 return r;
226
227 matched_patterns = new0(bool, strv_length(patterns));
228 if (!matched_patterns)
229 return log_oom();
230
231 JSON_VARIANT_ARRAY_FOREACH(i, json_variant_by_key(v, "Interfaces")) {
232 char ifindex_str[DECIMAL_STR_MAX(int64_t)];
233 const char *name;
234 int64_t index;
235 size_t pos;
236
237 name = json_variant_string(json_variant_by_key(i, "Name"));
238 index = json_variant_integer(json_variant_by_key(i, "Index"));
239 xsprintf(ifindex_str, "%" PRIi64, index);
240
241 if (!strv_fnmatch_full(patterns, ifindex_str, 0, &pos) &&
242 !strv_fnmatch_full(patterns, name, 0, &pos)) {
243 bool match = false;
244 JsonVariant *a;
245
246 JSON_VARIANT_ARRAY_FOREACH(a, json_variant_by_key(i, "AlternativeNames"))
247 if (strv_fnmatch_full(patterns, json_variant_string(a), 0, &pos)) {
248 match = true;
249 break;
250 }
251
252 if (!match)
253 continue;
254 }
255
256 matched_patterns[pos] = true;
257 json_variant_dump(i, arg_json_format_flags, NULL, NULL);
258 c++;
259 }
260
261 /* Look if we matched all our arguments that are not globs. It is OK for a glob to match
262 * nothing, but not for an exact argument. */
263 for (size_t pos = 0; pos < strv_length(patterns); pos++) {
264 if (matched_patterns[pos])
265 continue;
266
267 if (string_is_glob(patterns[pos]))
268 log_debug("Pattern \"%s\" doesn't match any interface, ignoring.",
269 patterns[pos]);
270 else
271 return log_error_errno(SYNTHETIC_ERRNO(ENODEV),
272 "Interface \"%s\" not found.", patterns[pos]);
273 }
274
275 if (c == 0)
276 log_warning("No interfaces matched.");
277
278 return 0;
279 }
280
281 static void operational_state_to_color(
282 const char *name,
283 const char *state,
284 const char **on,
285 const char **off) {
286
287 if (STRPTR_IN_SET(state, "routable", "enslaved") ||
288 (streq_ptr(name, "lo") && streq_ptr(state, "carrier"))) {
289 if (on)
290 *on = ansi_highlight_green();
291 if (off)
292 *off = ansi_normal();
293 } else if (streq_ptr(state, "degraded")) {
294 if (on)
295 *on = ansi_highlight_yellow();
296 if (off)
297 *off = ansi_normal();
298 } else {
299 if (on)
300 *on = "";
301 if (off)
302 *off = "";
303 }
304 }
305
306 static void setup_state_to_color(const char *state, const char **on, const char **off) {
307 if (streq_ptr(state, "configured")) {
308 if (on)
309 *on = ansi_highlight_green();
310 if (off)
311 *off = ansi_normal();
312 } else if (streq_ptr(state, "configuring")) {
313 if (on)
314 *on = ansi_highlight_yellow();
315 if (off)
316 *off = ansi_normal();
317 } else if (STRPTR_IN_SET(state, "failed", "linger")) {
318 if (on)
319 *on = ansi_highlight_red();
320 if (off)
321 *off = ansi_normal();
322 } else {
323 if (on)
324 *on = "";
325 if (off)
326 *off = "";
327 }
328 }
329
330 static void online_state_to_color(const char *state, const char **on, const char **off) {
331 if (streq_ptr(state, "online")) {
332 if (on)
333 *on = ansi_highlight_green();
334 if (off)
335 *off = ansi_normal();
336 } else if (streq_ptr(state, "partial")) {
337 if (on)
338 *on = ansi_highlight_yellow();
339 if (off)
340 *off = ansi_normal();
341 } else {
342 if (on)
343 *on = "";
344 if (off)
345 *off = "";
346 }
347 }
348
349 typedef struct VxLanInfo {
350 uint32_t vni;
351 uint32_t link;
352
353 int local_family;
354 int group_family;
355
356 union in_addr_union local;
357 union in_addr_union group;
358
359 uint16_t dest_port;
360
361 uint8_t proxy;
362 uint8_t learning;
363 uint8_t rsc;
364 uint8_t l2miss;
365 uint8_t l3miss;
366 uint8_t tos;
367 uint8_t ttl;
368 } VxLanInfo;
369
370 typedef struct LinkInfo {
371 char name[IFNAMSIZ+1];
372 char *netdev_kind;
373 sd_device *sd_device;
374 int ifindex;
375 unsigned short iftype;
376 struct hw_addr_data hw_address;
377 struct hw_addr_data permanent_hw_address;
378 uint32_t master;
379 uint32_t mtu;
380 uint32_t min_mtu;
381 uint32_t max_mtu;
382 uint32_t tx_queues;
383 uint32_t rx_queues;
384 uint8_t addr_gen_mode;
385 char *qdisc;
386 char **alternative_names;
387
388 union {
389 struct rtnl_link_stats64 stats64;
390 struct rtnl_link_stats stats;
391 };
392
393 uint64_t tx_bitrate;
394 uint64_t rx_bitrate;
395
396 /* bridge info */
397 uint32_t forward_delay;
398 uint32_t hello_time;
399 uint32_t max_age;
400 uint32_t ageing_time;
401 uint32_t stp_state;
402 uint32_t cost;
403 uint16_t priority;
404 uint8_t mcast_igmp_version;
405 uint8_t port_state;
406
407 /* vxlan info */
408 VxLanInfo vxlan_info;
409
410 /* vlan info */
411 uint16_t vlan_id;
412
413 /* tunnel info */
414 uint8_t ttl;
415 uint8_t tos;
416 uint8_t inherit;
417 uint8_t df;
418 uint8_t csum;
419 uint8_t csum6_tx;
420 uint8_t csum6_rx;
421 uint16_t tunnel_port;
422 uint32_t vni;
423 uint32_t label;
424 union in_addr_union local;
425 union in_addr_union remote;
426
427 /* bonding info */
428 uint8_t mode;
429 uint32_t miimon;
430 uint32_t updelay;
431 uint32_t downdelay;
432
433 /* macvlan and macvtap info */
434 uint32_t macvlan_mode;
435
436 /* ipvlan info */
437 uint16_t ipvlan_mode;
438 uint16_t ipvlan_flags;
439
440 /* ethtool info */
441 int autonegotiation;
442 uint64_t speed;
443 Duplex duplex;
444 NetDevPort port;
445
446 /* wlan info */
447 enum nl80211_iftype wlan_iftype;
448 char *ssid;
449 struct ether_addr bssid;
450
451 bool has_hw_address:1;
452 bool has_permanent_hw_address:1;
453 bool has_tx_queues:1;
454 bool has_rx_queues:1;
455 bool has_stats64:1;
456 bool has_stats:1;
457 bool has_bitrates:1;
458 bool has_ethtool_link_info:1;
459 bool has_wlan_link_info:1;
460 bool has_tunnel_ipv4:1;
461 bool has_ipv6_address_generation_mode:1;
462
463 bool needs_freeing:1;
464 } LinkInfo;
465
466 static int link_info_compare(const LinkInfo *a, const LinkInfo *b) {
467 return CMP(a->ifindex, b->ifindex);
468 }
469
470 static LinkInfo* link_info_array_free(LinkInfo *array) {
471 for (unsigned i = 0; array && array[i].needs_freeing; i++) {
472 sd_device_unref(array[i].sd_device);
473 free(array[i].netdev_kind);
474 free(array[i].ssid);
475 free(array[i].qdisc);
476 strv_free(array[i].alternative_names);
477 }
478
479 return mfree(array);
480 }
481 DEFINE_TRIVIAL_CLEANUP_FUNC(LinkInfo*, link_info_array_free);
482
483 static int decode_netdev(sd_netlink_message *m, LinkInfo *info) {
484 int r;
485
486 assert(m);
487 assert(info);
488
489 r = sd_netlink_message_enter_container(m, IFLA_LINKINFO);
490 if (r < 0)
491 return r;
492
493 r = sd_netlink_message_read_string_strdup(m, IFLA_INFO_KIND, &info->netdev_kind);
494 if (r < 0) {
495 (void) sd_netlink_message_exit_container(m);
496 return r;
497 }
498
499 r = sd_netlink_message_enter_container(m, IFLA_INFO_DATA);
500 if (r < 0)
501 return r;
502
503 if (streq(info->netdev_kind, "bridge")) {
504 (void) sd_netlink_message_read_u32(m, IFLA_BR_FORWARD_DELAY, &info->forward_delay);
505 (void) sd_netlink_message_read_u32(m, IFLA_BR_HELLO_TIME, &info->hello_time);
506 (void) sd_netlink_message_read_u32(m, IFLA_BR_MAX_AGE, &info->max_age);
507 (void) sd_netlink_message_read_u32(m, IFLA_BR_AGEING_TIME, &info->ageing_time);
508 (void) sd_netlink_message_read_u32(m, IFLA_BR_STP_STATE, &info->stp_state);
509 (void) sd_netlink_message_read_u32(m, IFLA_BRPORT_COST, &info->cost);
510 (void) sd_netlink_message_read_u16(m, IFLA_BR_PRIORITY, &info->priority);
511 (void) sd_netlink_message_read_u8(m, IFLA_BR_MCAST_IGMP_VERSION, &info->mcast_igmp_version);
512 (void) sd_netlink_message_read_u8(m, IFLA_BRPORT_STATE, &info->port_state);
513 } if (streq(info->netdev_kind, "bond")) {
514 (void) sd_netlink_message_read_u8(m, IFLA_BOND_MODE, &info->mode);
515 (void) sd_netlink_message_read_u32(m, IFLA_BOND_MIIMON, &info->miimon);
516 (void) sd_netlink_message_read_u32(m, IFLA_BOND_DOWNDELAY, &info->downdelay);
517 (void) sd_netlink_message_read_u32(m, IFLA_BOND_UPDELAY, &info->updelay);
518 } else if (streq(info->netdev_kind, "vxlan")) {
519 (void) sd_netlink_message_read_u32(m, IFLA_VXLAN_ID, &info->vxlan_info.vni);
520
521 r = sd_netlink_message_read_in_addr(m, IFLA_VXLAN_GROUP, &info->vxlan_info.group.in);
522 if (r >= 0)
523 info->vxlan_info.group_family = AF_INET;
524 else {
525 r = sd_netlink_message_read_in6_addr(m, IFLA_VXLAN_GROUP6, &info->vxlan_info.group.in6);
526 if (r >= 0)
527 info->vxlan_info.group_family = AF_INET6;
528 }
529
530 r = sd_netlink_message_read_in_addr(m, IFLA_VXLAN_LOCAL, &info->vxlan_info.local.in);
531 if (r >= 0)
532 info->vxlan_info.local_family = AF_INET;
533 else {
534 r = sd_netlink_message_read_in6_addr(m, IFLA_VXLAN_LOCAL6, &info->vxlan_info.local.in6);
535 if (r >= 0)
536 info->vxlan_info.local_family = AF_INET6;
537 }
538
539 (void) sd_netlink_message_read_u32(m, IFLA_VXLAN_LINK, &info->vxlan_info.link);
540 (void) sd_netlink_message_read_u16(m, IFLA_VXLAN_PORT, &info->vxlan_info.dest_port);
541 (void) sd_netlink_message_read_u8(m, IFLA_VXLAN_PROXY, &info->vxlan_info.proxy);
542 (void) sd_netlink_message_read_u8(m, IFLA_VXLAN_LEARNING, &info->vxlan_info.learning);
543 (void) sd_netlink_message_read_u8(m, IFLA_VXLAN_RSC, &info->vxlan_info.rsc);
544 (void) sd_netlink_message_read_u8(m, IFLA_VXLAN_L3MISS, &info->vxlan_info.l3miss);
545 (void) sd_netlink_message_read_u8(m, IFLA_VXLAN_L2MISS, &info->vxlan_info.l2miss);
546 (void) sd_netlink_message_read_u8(m, IFLA_VXLAN_TOS, &info->vxlan_info.tos);
547 (void) sd_netlink_message_read_u8(m, IFLA_VXLAN_TTL, &info->vxlan_info.ttl);
548 } else if (streq(info->netdev_kind, "vlan"))
549 (void) sd_netlink_message_read_u16(m, IFLA_VLAN_ID, &info->vlan_id);
550 else if (STR_IN_SET(info->netdev_kind, "ipip", "sit")) {
551 (void) sd_netlink_message_read_in_addr(m, IFLA_IPTUN_LOCAL, &info->local.in);
552 (void) sd_netlink_message_read_in_addr(m, IFLA_IPTUN_REMOTE, &info->remote.in);
553 } else if (streq(info->netdev_kind, "geneve")) {
554 (void) sd_netlink_message_read_u32(m, IFLA_GENEVE_ID, &info->vni);
555
556 r = sd_netlink_message_read_in_addr(m, IFLA_GENEVE_REMOTE, &info->remote.in);
557 if (r >= 0)
558 info->has_tunnel_ipv4 = true;
559 else
560 (void) sd_netlink_message_read_in6_addr(m, IFLA_GENEVE_REMOTE6, &info->remote.in6);
561
562 (void) sd_netlink_message_read_u8(m, IFLA_GENEVE_TTL, &info->ttl);
563 (void) sd_netlink_message_read_u8(m, IFLA_GENEVE_TTL_INHERIT, &info->inherit);
564 (void) sd_netlink_message_read_u8(m, IFLA_GENEVE_TOS, &info->tos);
565 (void) sd_netlink_message_read_u8(m, IFLA_GENEVE_DF, &info->df);
566 (void) sd_netlink_message_read_u8(m, IFLA_GENEVE_UDP_CSUM, &info->csum);
567 (void) sd_netlink_message_read_u8(m, IFLA_GENEVE_UDP_ZERO_CSUM6_TX, &info->csum6_tx);
568 (void) sd_netlink_message_read_u8(m, IFLA_GENEVE_UDP_ZERO_CSUM6_RX, &info->csum6_rx);
569 (void) sd_netlink_message_read_u16(m, IFLA_GENEVE_PORT, &info->tunnel_port);
570 (void) sd_netlink_message_read_u32(m, IFLA_GENEVE_LABEL, &info->label);
571 } else if (STR_IN_SET(info->netdev_kind, "gre", "gretap", "erspan")) {
572 (void) sd_netlink_message_read_in_addr(m, IFLA_GRE_LOCAL, &info->local.in);
573 (void) sd_netlink_message_read_in_addr(m, IFLA_GRE_REMOTE, &info->remote.in);
574 } else if (STR_IN_SET(info->netdev_kind, "ip6gre", "ip6gretap", "ip6erspan")) {
575 (void) sd_netlink_message_read_in6_addr(m, IFLA_GRE_LOCAL, &info->local.in6);
576 (void) sd_netlink_message_read_in6_addr(m, IFLA_GRE_REMOTE, &info->remote.in6);
577 } else if (streq(info->netdev_kind, "vti")) {
578 (void) sd_netlink_message_read_in_addr(m, IFLA_VTI_LOCAL, &info->local.in);
579 (void) sd_netlink_message_read_in_addr(m, IFLA_VTI_REMOTE, &info->remote.in);
580 } else if (streq(info->netdev_kind, "vti6")) {
581 (void) sd_netlink_message_read_in6_addr(m, IFLA_VTI_LOCAL, &info->local.in6);
582 (void) sd_netlink_message_read_in6_addr(m, IFLA_VTI_REMOTE, &info->remote.in6);
583 } else if (STR_IN_SET(info->netdev_kind, "macvlan", "macvtap"))
584 (void) sd_netlink_message_read_u32(m, IFLA_MACVLAN_MODE, &info->macvlan_mode);
585 else if (streq(info->netdev_kind, "ipvlan")) {
586 (void) sd_netlink_message_read_u16(m, IFLA_IPVLAN_MODE, &info->ipvlan_mode);
587 (void) sd_netlink_message_read_u16(m, IFLA_IPVLAN_FLAGS, &info->ipvlan_flags);
588 }
589
590 (void) sd_netlink_message_exit_container(m);
591 (void) sd_netlink_message_exit_container(m);
592
593 return 0;
594 }
595
596 static int decode_link(
597 sd_netlink_message *m,
598 LinkInfo *info,
599 char * const *patterns,
600 bool matched_patterns[]) {
601
602 _cleanup_strv_free_ char **altnames = NULL;
603 const char *name, *qdisc;
604 int ifindex, r;
605 uint16_t type;
606
607 assert(m);
608 assert(info);
609
610 r = sd_netlink_message_get_type(m, &type);
611 if (r < 0)
612 return r;
613
614 if (type != RTM_NEWLINK)
615 return 0;
616
617 r = sd_rtnl_message_link_get_ifindex(m, &ifindex);
618 if (r < 0)
619 return r;
620
621 r = sd_netlink_message_read_string(m, IFLA_IFNAME, &name);
622 if (r < 0)
623 return r;
624
625 r = sd_netlink_message_read_strv(m, IFLA_PROP_LIST, IFLA_ALT_IFNAME, &altnames);
626 if (r < 0 && r != -ENODATA)
627 return r;
628
629 if (patterns) {
630 char str[DECIMAL_STR_MAX(int)];
631 size_t pos;
632
633 assert(matched_patterns);
634
635 xsprintf(str, "%i", ifindex);
636 if (!strv_fnmatch_full(patterns, str, 0, &pos) &&
637 !strv_fnmatch_full(patterns, name, 0, &pos)) {
638 bool match = false;
639
640 STRV_FOREACH(p, altnames)
641 if (strv_fnmatch_full(patterns, *p, 0, &pos)) {
642 match = true;
643 break;
644 }
645 if (!match)
646 return 0;
647 }
648
649 matched_patterns[pos] = true;
650 }
651
652 r = sd_rtnl_message_link_get_type(m, &info->iftype);
653 if (r < 0)
654 return r;
655
656 strscpy(info->name, sizeof info->name, name);
657 info->ifindex = ifindex;
658 info->alternative_names = TAKE_PTR(altnames);
659
660 info->has_hw_address =
661 netlink_message_read_hw_addr(m, IFLA_ADDRESS, &info->hw_address) >= 0 &&
662 info->hw_address.length > 0;
663
664 info->has_permanent_hw_address =
665 (netlink_message_read_hw_addr(m, IFLA_PERM_ADDRESS, &info->permanent_hw_address) >= 0 ||
666 ethtool_get_permanent_hw_addr(NULL, info->name, &info->permanent_hw_address) >= 0) &&
667 !hw_addr_is_null(&info->permanent_hw_address) &&
668 !hw_addr_equal(&info->permanent_hw_address, &info->hw_address);
669
670 (void) sd_netlink_message_read_u32(m, IFLA_MTU, &info->mtu);
671 (void) sd_netlink_message_read_u32(m, IFLA_MIN_MTU, &info->min_mtu);
672 (void) sd_netlink_message_read_u32(m, IFLA_MAX_MTU, &info->max_mtu);
673
674 info->has_rx_queues =
675 sd_netlink_message_read_u32(m, IFLA_NUM_RX_QUEUES, &info->rx_queues) >= 0 &&
676 info->rx_queues > 0;
677
678 info->has_tx_queues =
679 sd_netlink_message_read_u32(m, IFLA_NUM_TX_QUEUES, &info->tx_queues) >= 0 &&
680 info->tx_queues > 0;
681
682 if (sd_netlink_message_read(m, IFLA_STATS64, sizeof info->stats64, &info->stats64) >= 0)
683 info->has_stats64 = true;
684 else if (sd_netlink_message_read(m, IFLA_STATS, sizeof info->stats, &info->stats) >= 0)
685 info->has_stats = true;
686
687 r = sd_netlink_message_read_string(m, IFLA_QDISC, &qdisc);
688 if (r >= 0) {
689 info->qdisc = strdup(qdisc);
690 if (!info->qdisc)
691 return log_oom();
692 }
693
694 (void) sd_netlink_message_read_u32(m, IFLA_MASTER, &info->master);
695
696 r = sd_netlink_message_enter_container(m, IFLA_AF_SPEC);
697 if (r >= 0) {
698 r = sd_netlink_message_enter_container(m, AF_INET6);
699 if (r >= 0) {
700 r = sd_netlink_message_read_u8(m, IFLA_INET6_ADDR_GEN_MODE, &info->addr_gen_mode);
701 if (r >= 0 && IN_SET(info->addr_gen_mode,
702 IN6_ADDR_GEN_MODE_EUI64,
703 IN6_ADDR_GEN_MODE_NONE,
704 IN6_ADDR_GEN_MODE_STABLE_PRIVACY,
705 IN6_ADDR_GEN_MODE_RANDOM))
706 info->has_ipv6_address_generation_mode = true;
707
708 (void) sd_netlink_message_exit_container(m);
709 }
710 (void) sd_netlink_message_exit_container(m);
711 }
712
713 /* fill kind info */
714 (void) decode_netdev(m, info);
715
716 return 1;
717 }
718
719 static int link_get_property(
720 sd_bus *bus,
721 const LinkInfo *link,
722 sd_bus_error *error,
723 sd_bus_message **reply,
724 const char *iface,
725 const char *propname,
726 const char *type) {
727
728 _cleanup_free_ char *path = NULL;
729 char ifindex_str[DECIMAL_STR_MAX(int)];
730 int r;
731
732 assert(bus);
733 assert(link);
734 assert(link->ifindex >= 0);
735 assert(error);
736 assert(reply);
737 assert(iface);
738 assert(propname);
739 assert(type);
740
741 xsprintf(ifindex_str, "%i", link->ifindex);
742
743 r = sd_bus_path_encode("/org/freedesktop/network1/link", ifindex_str, &path);
744 if (r < 0)
745 return r;
746
747 return sd_bus_get_property(bus, "org.freedesktop.network1", path, iface, propname, error, reply, type);
748 }
749
750 static int acquire_link_bitrates(sd_bus *bus, LinkInfo *link) {
751 _cleanup_(sd_bus_message_unrefp) sd_bus_message *reply = NULL;
752 _cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL;
753 int r;
754
755 assert(bus);
756 assert(link);
757
758 r = link_get_property(bus, link, &error, &reply, "org.freedesktop.network1.Link", "BitRates", "(tt)");
759 if (r < 0) {
760 bool quiet = sd_bus_error_has_names(&error, SD_BUS_ERROR_UNKNOWN_PROPERTY,
761 BUS_ERROR_SPEED_METER_INACTIVE);
762
763 return log_full_errno(quiet ? LOG_DEBUG : LOG_WARNING,
764 r, "Failed to query link bit rates: %s", bus_error_message(&error, r));
765 }
766
767 r = sd_bus_message_read(reply, "(tt)", &link->tx_bitrate, &link->rx_bitrate);
768 if (r < 0)
769 return bus_log_parse_error(r);
770
771 r = sd_bus_message_exit_container(reply);
772 if (r < 0)
773 return bus_log_parse_error(r);
774
775 link->has_bitrates = link->tx_bitrate != UINT64_MAX && link->rx_bitrate != UINT64_MAX;
776
777 return 0;
778 }
779
780 static void acquire_ether_link_info(int *fd, LinkInfo *link) {
781 assert(fd);
782 assert(link);
783
784 if (ethtool_get_link_info(fd,
785 link->name,
786 &link->autonegotiation,
787 &link->speed,
788 &link->duplex,
789 &link->port) >= 0)
790 link->has_ethtool_link_info = true;
791 }
792
793 static void acquire_wlan_link_info(LinkInfo *link) {
794 _cleanup_(sd_netlink_unrefp) sd_netlink *genl = NULL;
795 int r, k = 0;
796
797 assert(link);
798
799 if (!link->sd_device)
800 return;
801
802 if (!device_is_devtype(link->sd_device, "wlan"))
803 return;
804
805 r = sd_genl_socket_open(&genl);
806 if (r < 0) {
807 log_debug_errno(r, "Failed to open generic netlink socket: %m");
808 return;
809 }
810
811 (void) sd_netlink_increase_rxbuf(genl, RCVBUF_SIZE);
812
813 r = wifi_get_interface(genl, link->ifindex, &link->wlan_iftype, &link->ssid);
814 if (r < 0)
815 log_debug_errno(r, "%s: failed to query ssid: %m", link->name);
816
817 if (link->wlan_iftype == NL80211_IFTYPE_STATION) {
818 k = wifi_get_station(genl, link->ifindex, &link->bssid);
819 if (k < 0)
820 log_debug_errno(k, "%s: failed to query bssid: %m", link->name);
821 }
822
823 link->has_wlan_link_info = r > 0 || k > 0;
824 }
825
826 static int acquire_link_info(sd_bus *bus, sd_netlink *rtnl, char * const *patterns, LinkInfo **ret) {
827 _cleanup_(sd_netlink_message_unrefp) sd_netlink_message *req = NULL, *reply = NULL;
828 _cleanup_(link_info_array_freep) LinkInfo *links = NULL;
829 _cleanup_free_ bool *matched_patterns = NULL;
830 _cleanup_close_ int fd = -EBADF;
831 size_t c = 0;
832 int r;
833
834 assert(rtnl);
835 assert(ret);
836
837 r = sd_rtnl_message_new_link(rtnl, &req, RTM_GETLINK, 0);
838 if (r < 0)
839 return rtnl_log_create_error(r);
840
841 r = sd_netlink_message_set_request_dump(req, true);
842 if (r < 0)
843 return rtnl_log_create_error(r);
844
845 r = sd_netlink_call(rtnl, req, 0, &reply);
846 if (r < 0)
847 return log_error_errno(r, "Failed to enumerate links: %m");
848
849 if (patterns) {
850 matched_patterns = new0(bool, strv_length(patterns));
851 if (!matched_patterns)
852 return log_oom();
853 }
854
855 for (sd_netlink_message *i = reply; i; i = sd_netlink_message_next(i)) {
856 if (!GREEDY_REALLOC0(links, c + 2)) /* We keep one trailing one as marker */
857 return -ENOMEM;
858
859 r = decode_link(i, links + c, patterns, matched_patterns);
860 if (r < 0)
861 return r;
862 if (r == 0)
863 continue;
864
865 links[c].needs_freeing = true;
866
867 (void) sd_device_new_from_ifindex(&links[c].sd_device, links[c].ifindex);
868
869 acquire_ether_link_info(&fd, &links[c]);
870 acquire_wlan_link_info(&links[c]);
871
872 c++;
873 }
874
875 /* Look if we matched all our arguments that are not globs. It
876 * is OK for a glob to match nothing, but not for an exact argument. */
877 for (size_t pos = 0; pos < strv_length(patterns); pos++) {
878 if (matched_patterns[pos])
879 continue;
880
881 if (string_is_glob(patterns[pos]))
882 log_debug("Pattern \"%s\" doesn't match any interface, ignoring.",
883 patterns[pos]);
884 else
885 return log_error_errno(SYNTHETIC_ERRNO(ENODEV),
886 "Interface \"%s\" not found.", patterns[pos]);
887 }
888
889 typesafe_qsort(links, c, link_info_compare);
890
891 if (bus)
892 FOREACH_ARRAY(link, links, c)
893 (void) acquire_link_bitrates(bus, link);
894
895 *ret = TAKE_PTR(links);
896
897 if (patterns && c == 0)
898 log_warning("No interfaces matched.");
899
900 return (int) c;
901 }
902
903 static int list_links(int argc, char *argv[], void *userdata) {
904 _cleanup_(sd_bus_flush_close_unrefp) sd_bus *bus = NULL;
905 _cleanup_(sd_netlink_unrefp) sd_netlink *rtnl = NULL;
906 _cleanup_(link_info_array_freep) LinkInfo *links = NULL;
907 _cleanup_(table_unrefp) Table *table = NULL;
908 TableCell *cell;
909 int c, r;
910
911 r = acquire_bus(&bus);
912 if (r < 0)
913 return r;
914
915 if (arg_json_format_flags != JSON_FORMAT_OFF) {
916 if (arg_all || argc <= 1)
917 return dump_manager_description(bus);
918 else
919 return dump_link_description(bus, strv_skip(argv, 1));
920 }
921
922 r = sd_netlink_open(&rtnl);
923 if (r < 0)
924 return log_error_errno(r, "Failed to connect to netlink: %m");
925
926 c = acquire_link_info(NULL, rtnl, argc > 1 ? argv + 1 : NULL, &links);
927 if (c < 0)
928 return c;
929
930 pager_open(arg_pager_flags);
931
932 table = table_new("idx", "link", "type", "operational", "setup");
933 if (!table)
934 return log_oom();
935
936 if (arg_full)
937 table_set_width(table, 0);
938
939 table_set_header(table, arg_legend);
940 table_set_ersatz_string(table, TABLE_ERSATZ_DASH);
941
942 assert_se(cell = table_get_cell(table, 0, 0));
943 (void) table_set_minimum_width(table, cell, 3);
944 (void) table_set_weight(table, cell, 0);
945 (void) table_set_ellipsize_percent(table, cell, 100);
946 (void) table_set_align_percent(table, cell, 100);
947
948 assert_se(cell = table_get_cell(table, 0, 1));
949 (void) table_set_ellipsize_percent(table, cell, 100);
950
951 FOREACH_ARRAY(link, links, c) {
952 _cleanup_free_ char *setup_state = NULL, *operational_state = NULL;
953 _cleanup_free_ char *t = NULL;
954 const char *on_color_operational, *on_color_setup;
955
956 (void) sd_network_link_get_operational_state(link->ifindex, &operational_state);
957 operational_state_to_color(link->name, operational_state, &on_color_operational, NULL);
958
959 (void) sd_network_link_get_setup_state(link->ifindex, &setup_state);
960 setup_state_to_color(setup_state, &on_color_setup, NULL);
961
962 r = net_get_type_string(link->sd_device, link->iftype, &t);
963 if (r == -ENOMEM)
964 return log_oom();
965
966 r = table_add_many(table,
967 TABLE_INT, link->ifindex,
968 TABLE_STRING, link->name,
969 TABLE_STRING, t,
970 TABLE_STRING, operational_state,
971 TABLE_SET_COLOR, on_color_operational,
972 TABLE_STRING, setup_state ?: "unmanaged",
973 TABLE_SET_COLOR, on_color_setup);
974 if (r < 0)
975 return table_log_add_error(r);
976 }
977
978 r = table_print(table, NULL);
979 if (r < 0)
980 return table_log_print_error(r);
981
982 if (arg_legend)
983 printf("\n%i links listed.\n", c);
984
985 return 0;
986 }
987
988 /* IEEE Organizationally Unique Identifier vendor string */
989 static int ieee_oui(sd_hwdb *hwdb, const struct ether_addr *mac, char **ret) {
990 _cleanup_free_ char *desc = NULL;
991 const char *description;
992 char modalias[STRLEN("OUI:XXYYXXYYXXYY") + 1];
993 int r;
994
995 assert(ret);
996
997 if (!hwdb || !mac)
998 return -EINVAL;
999
1000 /* skip commonly misused 00:00:00 (Xerox) prefix */
1001 if (memcmp(mac, "\0\0\0", 3) == 0)
1002 return -EINVAL;
1003
1004 xsprintf(modalias, "OUI:" ETHER_ADDR_FORMAT_STR, ETHER_ADDR_FORMAT_VAL(*mac));
1005
1006 r = sd_hwdb_get(hwdb, modalias, "ID_OUI_FROM_DATABASE", &description);
1007 if (r < 0)
1008 return r;
1009
1010 desc = strdup(description);
1011 if (!desc)
1012 return -ENOMEM;
1013
1014 *ret = TAKE_PTR(desc);
1015
1016 return 0;
1017 }
1018
1019 static int get_gateway_description(
1020 sd_netlink *rtnl,
1021 sd_hwdb *hwdb,
1022 int ifindex,
1023 int family,
1024 union in_addr_union *gateway,
1025 char **ret) {
1026
1027 _cleanup_(sd_netlink_message_unrefp) sd_netlink_message *req = NULL, *reply = NULL;
1028 int r;
1029
1030 assert(rtnl);
1031 assert(ifindex >= 0);
1032 assert(IN_SET(family, AF_INET, AF_INET6));
1033 assert(gateway);
1034 assert(ret);
1035
1036 r = sd_rtnl_message_new_neigh(rtnl, &req, RTM_GETNEIGH, ifindex, family);
1037 if (r < 0)
1038 return r;
1039
1040 r = sd_netlink_message_set_request_dump(req, true);
1041 if (r < 0)
1042 return r;
1043
1044 r = sd_netlink_call(rtnl, req, 0, &reply);
1045 if (r < 0)
1046 return r;
1047
1048 for (sd_netlink_message *m = reply; m; m = sd_netlink_message_next(m)) {
1049 union in_addr_union gw = IN_ADDR_NULL;
1050 struct ether_addr mac = ETHER_ADDR_NULL;
1051 uint16_t type;
1052 int ifi, fam;
1053
1054 r = sd_netlink_message_get_errno(m);
1055 if (r < 0) {
1056 log_error_errno(r, "Failed to get netlink message, ignoring: %m");
1057 continue;
1058 }
1059
1060 r = sd_netlink_message_get_type(m, &type);
1061 if (r < 0) {
1062 log_error_errno(r, "Failed to get netlink message type, ignoring: %m");
1063 continue;
1064 }
1065
1066 if (type != RTM_NEWNEIGH) {
1067 log_error_errno(SYNTHETIC_ERRNO(EINVAL),
1068 "Got unexpected netlink message type %u, ignoring",
1069 type);
1070 continue;
1071 }
1072
1073 r = sd_rtnl_message_neigh_get_family(m, &fam);
1074 if (r < 0) {
1075 log_error_errno(r, "Failed to get rtnl family, ignoring: %m");
1076 continue;
1077 }
1078
1079 if (fam != family) {
1080 log_error_errno(SYNTHETIC_ERRNO(EINVAL), "Got invalid rtnl family %d, ignoring", fam);
1081 continue;
1082 }
1083
1084 r = sd_rtnl_message_neigh_get_ifindex(m, &ifi);
1085 if (r < 0) {
1086 log_error_errno(r, "Failed to get rtnl ifindex, ignoring: %m");
1087 continue;
1088 }
1089
1090 if (ifindex > 0 && ifi != ifindex)
1091 continue;
1092
1093 switch (fam) {
1094
1095 case AF_INET:
1096 r = sd_netlink_message_read_in_addr(m, NDA_DST, &gw.in);
1097 if (r < 0)
1098 continue;
1099
1100 break;
1101
1102 case AF_INET6:
1103 r = sd_netlink_message_read_in6_addr(m, NDA_DST, &gw.in6);
1104 if (r < 0)
1105 continue;
1106
1107 break;
1108
1109 default:
1110 continue;
1111 }
1112
1113 if (!in_addr_equal(fam, &gw, gateway))
1114 continue;
1115
1116 r = sd_netlink_message_read(m, NDA_LLADDR, sizeof(mac), &mac);
1117 if (r < 0)
1118 continue;
1119
1120 r = ieee_oui(hwdb, &mac, ret);
1121 if (r < 0)
1122 continue;
1123
1124 return 0;
1125 }
1126
1127 return -ENODATA;
1128 }
1129
1130 static int dump_list(Table *table, const char *key, char * const *l) {
1131 int r;
1132
1133 assert(table);
1134 assert(key);
1135
1136 if (strv_isempty(l))
1137 return 0;
1138
1139 r = table_add_many(table,
1140 TABLE_FIELD, key,
1141 TABLE_STRV, l);
1142 if (r < 0)
1143 return table_log_add_error(r);
1144
1145 return 0;
1146 }
1147
1148 static int dump_gateways(sd_netlink *rtnl, sd_hwdb *hwdb, Table *table, int ifindex) {
1149 _cleanup_free_ struct local_address *local_addrs = NULL;
1150 _cleanup_strv_free_ char **buf = NULL;
1151 int r, n;
1152
1153 assert(rtnl);
1154 assert(table);
1155
1156 n = local_gateways(rtnl, ifindex, AF_UNSPEC, &local_addrs);
1157 if (n <= 0)
1158 return n;
1159
1160 FOREACH_ARRAY(local, local_addrs, n) {
1161 _cleanup_free_ char *description = NULL;
1162
1163 r = get_gateway_description(rtnl, hwdb, local->ifindex, local->family, &local->address, &description);
1164 if (r < 0)
1165 log_debug_errno(r, "Could not get description of gateway, ignoring: %m");
1166
1167 /* Show interface name for the entry if we show entries for all interfaces */
1168 r = strv_extendf(&buf, "%s%s%s%s%s%s",
1169 IN_ADDR_TO_STRING(local->family, &local->address),
1170 description ? " (" : "",
1171 strempty(description),
1172 description ? ")" : "",
1173 ifindex <= 0 ? " on " : "",
1174 ifindex <= 0 ? FORMAT_IFNAME_FULL(local->ifindex, FORMAT_IFNAME_IFINDEX_WITH_PERCENT) : "");
1175 if (r < 0)
1176 return log_oom();
1177 }
1178
1179 return dump_list(table, "Gateway", buf);
1180 }
1181
1182 static int dump_addresses(
1183 sd_netlink *rtnl,
1184 sd_dhcp_lease *lease,
1185 Table *table,
1186 int ifindex) {
1187
1188 _cleanup_free_ struct local_address *local_addrs = NULL;
1189 _cleanup_strv_free_ char **buf = NULL;
1190 struct in_addr dhcp4_address = {};
1191 int r, n;
1192
1193 assert(rtnl);
1194 assert(table);
1195
1196 n = local_addresses(rtnl, ifindex, AF_UNSPEC, &local_addrs);
1197 if (n <= 0)
1198 return n;
1199
1200 if (lease)
1201 (void) sd_dhcp_lease_get_address(lease, &dhcp4_address);
1202
1203 FOREACH_ARRAY(local, local_addrs, n) {
1204 struct in_addr server_address;
1205 bool dhcp4 = false;
1206
1207 if (local->family == AF_INET && in4_addr_equal(&local->address.in, &dhcp4_address))
1208 dhcp4 = sd_dhcp_lease_get_server_identifier(lease, &server_address) >= 0;
1209
1210 r = strv_extendf(&buf, "%s%s%s%s%s%s",
1211 IN_ADDR_TO_STRING(local->family, &local->address),
1212 dhcp4 ? " (DHCP4 via " : "",
1213 dhcp4 ? IN4_ADDR_TO_STRING(&server_address) : "",
1214 dhcp4 ? ")" : "",
1215 ifindex <= 0 ? " on " : "",
1216 ifindex <= 0 ? FORMAT_IFNAME_FULL(local->ifindex, FORMAT_IFNAME_IFINDEX_WITH_PERCENT) : "");
1217 if (r < 0)
1218 return log_oom();
1219 }
1220
1221 return dump_list(table, "Address", buf);
1222 }
1223
1224 static int dump_address_labels(sd_netlink *rtnl) {
1225 _cleanup_(sd_netlink_message_unrefp) sd_netlink_message *req = NULL, *reply = NULL;
1226 _cleanup_(table_unrefp) Table *table = NULL;
1227 TableCell *cell;
1228 int r;
1229
1230 assert(rtnl);
1231
1232 r = sd_rtnl_message_new_addrlabel(rtnl, &req, RTM_GETADDRLABEL, 0, AF_INET6);
1233 if (r < 0)
1234 return log_error_errno(r, "Could not allocate RTM_GETADDRLABEL message: %m");
1235
1236 r = sd_netlink_message_set_request_dump(req, true);
1237 if (r < 0)
1238 return r;
1239
1240 r = sd_netlink_call(rtnl, req, 0, &reply);
1241 if (r < 0)
1242 return r;
1243
1244 table = table_new("label", "prefix/prefixlen");
1245 if (!table)
1246 return log_oom();
1247
1248 if (arg_full)
1249 table_set_width(table, 0);
1250
1251 r = table_set_sort(table, (size_t) 0);
1252 if (r < 0)
1253 return r;
1254
1255 assert_se(cell = table_get_cell(table, 0, 0));
1256 (void) table_set_align_percent(table, cell, 100);
1257 (void) table_set_ellipsize_percent(table, cell, 100);
1258
1259 assert_se(cell = table_get_cell(table, 0, 1));
1260 (void) table_set_align_percent(table, cell, 100);
1261
1262 for (sd_netlink_message *m = reply; m; m = sd_netlink_message_next(m)) {
1263 struct in6_addr prefix;
1264 uint8_t prefixlen;
1265 uint32_t label;
1266
1267 r = sd_netlink_message_get_errno(m);
1268 if (r < 0) {
1269 log_error_errno(r, "Failed to get netlink message, ignoring: %m");
1270 continue;
1271 }
1272
1273 r = sd_netlink_message_read_u32(m, IFAL_LABEL, &label);
1274 if (r < 0 && r != -ENODATA) {
1275 log_error_errno(r, "Could not read IFAL_LABEL, ignoring: %m");
1276 continue;
1277 }
1278
1279 r = sd_netlink_message_read_in6_addr(m, IFAL_ADDRESS, &prefix);
1280 if (r < 0)
1281 continue;
1282
1283 r = sd_rtnl_message_addrlabel_get_prefixlen(m, &prefixlen);
1284 if (r < 0)
1285 continue;
1286
1287 r = table_add_cell(table, NULL, TABLE_UINT32, &label);
1288 if (r < 0)
1289 return table_log_add_error(r);
1290
1291 r = table_add_cell_stringf(table, NULL, "%s/%u", IN6_ADDR_TO_STRING(&prefix), prefixlen);
1292 if (r < 0)
1293 return table_log_add_error(r);
1294 }
1295
1296 r = table_print(table, NULL);
1297 if (r < 0)
1298 return table_log_print_error(r);
1299
1300 return 0;
1301 }
1302
1303 static int list_address_labels(int argc, char *argv[], void *userdata) {
1304 _cleanup_(sd_netlink_unrefp) sd_netlink *rtnl = NULL;
1305 int r;
1306
1307 r = sd_netlink_open(&rtnl);
1308 if (r < 0)
1309 return log_error_errno(r, "Failed to connect to netlink: %m");
1310
1311 return dump_address_labels(rtnl);
1312 }
1313
1314 static int open_lldp_neighbors(int ifindex, FILE **ret) {
1315 _cleanup_fclose_ FILE *f = NULL;
1316 char p[STRLEN("/run/systemd/netif/lldp/") + DECIMAL_STR_MAX(int)];
1317
1318 assert(ifindex >= 0);
1319 assert(ret);
1320
1321 xsprintf(p, "/run/systemd/netif/lldp/%i", ifindex);
1322
1323 f = fopen(p, "re");
1324 if (!f)
1325 return -errno;
1326
1327 *ret = TAKE_PTR(f);
1328 return 0;
1329 }
1330
1331 static int next_lldp_neighbor(FILE *f, sd_lldp_neighbor **ret) {
1332 _cleanup_free_ void *raw = NULL;
1333 size_t l;
1334 le64_t u;
1335 int r;
1336
1337 assert(f);
1338 assert(ret);
1339
1340 l = fread(&u, 1, sizeof(u), f);
1341 if (l == 0 && feof(f))
1342 return 0;
1343 if (l != sizeof(u))
1344 return -EBADMSG;
1345
1346 /* each LLDP packet is at most MTU size, but let's allow up to 4KiB just in case */
1347 if (le64toh(u) >= 4096)
1348 return -EBADMSG;
1349
1350 raw = new(uint8_t, le64toh(u));
1351 if (!raw)
1352 return -ENOMEM;
1353
1354 if (fread(raw, 1, le64toh(u), f) != le64toh(u))
1355 return -EBADMSG;
1356
1357 r = sd_lldp_neighbor_from_raw(ret, raw, le64toh(u));
1358 if (r < 0)
1359 return r;
1360
1361 return 1;
1362 }
1363
1364 static int dump_lldp_neighbors(Table *table, const char *prefix, int ifindex) {
1365 _cleanup_strv_free_ char **buf = NULL;
1366 _cleanup_fclose_ FILE *f = NULL;
1367 int r;
1368
1369 assert(table);
1370 assert(prefix);
1371 assert(ifindex > 0);
1372
1373 r = open_lldp_neighbors(ifindex, &f);
1374 if (r == -ENOENT)
1375 return 0;
1376 if (r < 0)
1377 return r;
1378
1379 for (;;) {
1380 const char *system_name = NULL, *port_id = NULL, *port_description = NULL;
1381 _cleanup_(sd_lldp_neighbor_unrefp) sd_lldp_neighbor *n = NULL;
1382
1383 r = next_lldp_neighbor(f, &n);
1384 if (r < 0)
1385 return r;
1386 if (r == 0)
1387 break;
1388
1389 (void) sd_lldp_neighbor_get_system_name(n, &system_name);
1390 (void) sd_lldp_neighbor_get_port_id_as_string(n, &port_id);
1391 (void) sd_lldp_neighbor_get_port_description(n, &port_description);
1392
1393 r = strv_extendf(&buf, "%s on port %s%s%s%s",
1394 strna(system_name),
1395 strna(port_id),
1396 isempty(port_description) ? "" : " (",
1397 strempty(port_description),
1398 isempty(port_description) ? "" : ")");
1399 if (r < 0)
1400 return log_oom();
1401 }
1402
1403 return dump_list(table, prefix, buf);
1404 }
1405
1406 static int dump_dhcp_leases(Table *table, const char *prefix, sd_bus *bus, const LinkInfo *link) {
1407 _cleanup_strv_free_ char **buf = NULL;
1408 _cleanup_(sd_bus_message_unrefp) sd_bus_message *reply = NULL;
1409 _cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL;
1410 int r;
1411
1412 assert(table);
1413 assert(prefix);
1414 assert(bus);
1415 assert(link);
1416
1417 r = link_get_property(bus, link, &error, &reply, "org.freedesktop.network1.DHCPServer", "Leases", "a(uayayayayt)");
1418 if (r < 0) {
1419 bool quiet = sd_bus_error_has_name(&error, SD_BUS_ERROR_UNKNOWN_PROPERTY);
1420
1421 log_full_errno(quiet ? LOG_DEBUG : LOG_WARNING,
1422 r, "Failed to query link DHCP leases: %s", bus_error_message(&error, r));
1423 return 0;
1424 }
1425
1426 r = sd_bus_message_enter_container(reply, 'a', "(uayayayayt)");
1427 if (r < 0)
1428 return bus_log_parse_error(r);
1429
1430 while ((r = sd_bus_message_enter_container(reply, 'r', "uayayayayt")) > 0) {
1431 _cleanup_free_ char *id = NULL, *ip = NULL;
1432 const void *client_id, *addr, *gtw, *hwaddr;
1433 size_t client_id_sz, sz;
1434 uint64_t expiration;
1435 uint32_t family;
1436
1437 r = sd_bus_message_read(reply, "u", &family);
1438 if (r < 0)
1439 return bus_log_parse_error(r);
1440
1441 r = sd_bus_message_read_array(reply, 'y', &client_id, &client_id_sz);
1442 if (r < 0)
1443 return bus_log_parse_error(r);
1444
1445 r = sd_bus_message_read_array(reply, 'y', &addr, &sz);
1446 if (r < 0 || sz != 4)
1447 return bus_log_parse_error(r);
1448
1449 r = sd_bus_message_read_array(reply, 'y', &gtw, &sz);
1450 if (r < 0 || sz != 4)
1451 return bus_log_parse_error(r);
1452
1453 r = sd_bus_message_read_array(reply, 'y', &hwaddr, &sz);
1454 if (r < 0)
1455 return bus_log_parse_error(r);
1456
1457 r = sd_bus_message_read_basic(reply, 't', &expiration);
1458 if (r < 0)
1459 return bus_log_parse_error(r);
1460
1461 r = sd_dhcp_client_id_to_string_from_raw(client_id, client_id_sz, &id);
1462 if (r < 0)
1463 return bus_log_parse_error(r);
1464
1465 r = in_addr_to_string(family, addr, &ip);
1466 if (r < 0)
1467 return bus_log_parse_error(r);
1468
1469 r = strv_extendf(&buf, "%s (to %s)", ip, id);
1470 if (r < 0)
1471 return log_oom();
1472
1473 r = sd_bus_message_exit_container(reply);
1474 if (r < 0)
1475 return bus_log_parse_error(r);
1476 }
1477 if (r < 0)
1478 return bus_log_parse_error(r);
1479
1480 r = sd_bus_message_exit_container(reply);
1481 if (r < 0)
1482 return bus_log_parse_error(r);
1483
1484 r = sd_bus_message_exit_container(reply);
1485 if (r < 0)
1486 return bus_log_parse_error(r);
1487
1488 if (strv_isempty(buf)) {
1489 r = strv_extendf(&buf, "none");
1490 if (r < 0)
1491 return log_oom();
1492 }
1493
1494 return dump_list(table, prefix, buf);
1495 }
1496
1497 static int dump_ifindexes(Table *table, const char *prefix, const int *ifindexes) {
1498 int r;
1499
1500 assert(table);
1501 assert(prefix);
1502
1503 if (!ifindexes)
1504 return 0;
1505
1506 for (unsigned c = 0; ifindexes[c] > 0; c++) {
1507 if (c == 0)
1508 r = table_add_cell(table, NULL, TABLE_FIELD, prefix);
1509 else
1510 r = table_add_cell(table, NULL, TABLE_EMPTY, NULL);
1511 if (r < 0)
1512 return table_log_add_error(r);
1513
1514 r = table_add_cell(table, NULL, TABLE_IFINDEX, &ifindexes[c]);
1515 if (r < 0)
1516 return table_log_add_error(r);
1517 }
1518
1519 return 0;
1520 }
1521
1522 #define DUMP_STATS_ONE(name, val_name) \
1523 ({ \
1524 r = table_add_cell(table, NULL, TABLE_FIELD, name); \
1525 if (r < 0) \
1526 return table_log_add_error(r); \
1527 r = table_add_cell(table, NULL, \
1528 info->has_stats64 ? TABLE_UINT64 : TABLE_UINT32, \
1529 info->has_stats64 ? (void*) &info->stats64.val_name : (void*) &info->stats.val_name); \
1530 if (r < 0) \
1531 return table_log_add_error(r); \
1532 })
1533
1534 static int dump_statistics(Table *table, const LinkInfo *info) {
1535 int r;
1536
1537 assert(table);
1538 assert(info);
1539
1540 if (!arg_stats)
1541 return 0;
1542
1543 if (!info->has_stats64 && !info->has_stats)
1544 return 0;
1545
1546 DUMP_STATS_ONE("Rx Packets", rx_packets);
1547 DUMP_STATS_ONE("Tx Packets", tx_packets);
1548 DUMP_STATS_ONE("Rx Bytes", rx_bytes);
1549 DUMP_STATS_ONE("Tx Bytes", tx_bytes);
1550 DUMP_STATS_ONE("Rx Errors", rx_errors);
1551 DUMP_STATS_ONE("Tx Errors", tx_errors);
1552 DUMP_STATS_ONE("Rx Dropped", rx_dropped);
1553 DUMP_STATS_ONE("Tx Dropped", tx_dropped);
1554 DUMP_STATS_ONE("Multicast Packets", multicast);
1555 DUMP_STATS_ONE("Collisions", collisions);
1556
1557 return 0;
1558 }
1559
1560 static int dump_hw_address(Table *table, sd_hwdb *hwdb, const char *field, const struct hw_addr_data *addr) {
1561 _cleanup_free_ char *description = NULL;
1562 int r;
1563
1564 assert(table);
1565 assert(field);
1566 assert(addr);
1567
1568 if (addr->length == ETH_ALEN)
1569 (void) ieee_oui(hwdb, &addr->ether, &description);
1570
1571 r = table_add_cell(table, NULL, TABLE_FIELD, field);
1572 if (r < 0)
1573 return table_log_add_error(r);
1574
1575 r = table_add_cell_stringf(table, NULL, "%s%s%s%s",
1576 HW_ADDR_TO_STR(addr),
1577 description ? " (" : "",
1578 strempty(description),
1579 description ? ")" : "");
1580 if (r < 0)
1581 return table_log_add_error(r);
1582
1583 return 0;
1584 }
1585
1586 static OutputFlags get_output_flags(void) {
1587 return
1588 arg_all * OUTPUT_SHOW_ALL |
1589 (arg_full || !on_tty() || pager_have()) * OUTPUT_FULL_WIDTH |
1590 colors_enabled() * OUTPUT_COLOR;
1591 }
1592
1593 static int show_logs(const LinkInfo *info) {
1594 _cleanup_(sd_journal_closep) sd_journal *j = NULL;
1595 int r;
1596
1597 if (arg_lines == 0)
1598 return 0;
1599
1600 r = sd_journal_open(&j, SD_JOURNAL_LOCAL_ONLY | SD_JOURNAL_ASSUME_IMMUTABLE);
1601 if (r < 0)
1602 return log_error_errno(r, "Failed to open journal: %m");
1603
1604 r = add_match_this_boot(j, NULL);
1605 if (r < 0)
1606 return log_error_errno(r, "Failed to add boot matches: %m");
1607
1608 if (info) {
1609 char m1[STRLEN("_KERNEL_DEVICE=n") + DECIMAL_STR_MAX(int)];
1610 const char *m2, *m3;
1611
1612 /* kernel */
1613 xsprintf(m1, "_KERNEL_DEVICE=n%i", info->ifindex);
1614 /* networkd */
1615 m2 = strjoina("INTERFACE=", info->name);
1616 /* udevd */
1617 m3 = strjoina("DEVICE=", info->name);
1618
1619 (void)(
1620 (r = sd_journal_add_match(j, m1, 0)) ||
1621 (r = sd_journal_add_disjunction(j)) ||
1622 (r = sd_journal_add_match(j, m2, 0)) ||
1623 (r = sd_journal_add_disjunction(j)) ||
1624 (r = sd_journal_add_match(j, m3, 0))
1625 );
1626 if (r < 0)
1627 return log_error_errno(r, "Failed to add link matches: %m");
1628 } else {
1629 r = add_matches_for_unit(j, "systemd-networkd.service");
1630 if (r < 0)
1631 return log_error_errno(r, "Failed to add unit matches: %m");
1632
1633 r = add_matches_for_unit(j, "systemd-networkd-wait-online.service");
1634 if (r < 0)
1635 return log_error_errno(r, "Failed to add unit matches: %m");
1636 }
1637
1638 return show_journal(
1639 stdout,
1640 j,
1641 OUTPUT_SHORT,
1642 0,
1643 0,
1644 arg_lines,
1645 get_output_flags() | OUTPUT_BEGIN_NEWLINE,
1646 NULL);
1647 }
1648
1649 static int table_add_string_line(Table *table, const char *key, const char *value) {
1650 int r;
1651
1652 assert(table);
1653 assert(key);
1654
1655 if (isempty(value))
1656 return 0;
1657
1658 r = table_add_many(table,
1659 TABLE_FIELD, key,
1660 TABLE_STRING, value);
1661 if (r < 0)
1662 return table_log_add_error(r);
1663
1664 return 0;
1665 }
1666
1667 static int format_dropins(char **dropins) {
1668 STRV_FOREACH(d, dropins) {
1669 _cleanup_free_ char *s = NULL;
1670 int glyph = *(d + 1) == NULL ? SPECIAL_GLYPH_TREE_RIGHT : SPECIAL_GLYPH_TREE_BRANCH;
1671
1672 s = strjoin(special_glyph(glyph), *d);
1673 if (!s)
1674 return log_oom();
1675
1676 free_and_replace(*d, s);
1677 }
1678
1679 return 0;
1680 }
1681
1682 static int link_status_one(
1683 sd_bus *bus,
1684 sd_netlink *rtnl,
1685 sd_hwdb *hwdb,
1686 const LinkInfo *info) {
1687
1688 _cleanup_strv_free_ char **dns = NULL, **ntp = NULL, **sip = NULL, **search_domains = NULL,
1689 **route_domains = NULL, **link_dropins = NULL, **network_dropins = NULL;
1690 _cleanup_free_ char *t = NULL, *network = NULL, *iaid = NULL, *duid = NULL, *captive_portal = NULL,
1691 *setup_state = NULL, *operational_state = NULL, *online_state = NULL, *activation_policy = NULL;
1692 const char *driver = NULL, *path = NULL, *vendor = NULL, *model = NULL, *link = NULL,
1693 *on_color_operational, *off_color_operational, *on_color_setup, *off_color_setup, *on_color_online;
1694 _cleanup_free_ int *carrier_bound_to = NULL, *carrier_bound_by = NULL;
1695 _cleanup_(sd_dhcp_lease_unrefp) sd_dhcp_lease *lease = NULL;
1696 _cleanup_(table_unrefp) Table *table = NULL;
1697 int r;
1698
1699 assert(bus);
1700 assert(rtnl);
1701 assert(info);
1702
1703 (void) sd_network_link_get_operational_state(info->ifindex, &operational_state);
1704 operational_state_to_color(info->name, operational_state, &on_color_operational, &off_color_operational);
1705
1706 (void) sd_network_link_get_online_state(info->ifindex, &online_state);
1707 online_state_to_color(online_state, &on_color_online, NULL);
1708
1709 (void) sd_network_link_get_setup_state(info->ifindex, &setup_state);
1710 setup_state_to_color(setup_state, &on_color_setup, &off_color_setup);
1711
1712 (void) sd_network_link_get_dns(info->ifindex, &dns);
1713 (void) sd_network_link_get_search_domains(info->ifindex, &search_domains);
1714 (void) sd_network_link_get_route_domains(info->ifindex, &route_domains);
1715 (void) sd_network_link_get_ntp(info->ifindex, &ntp);
1716 (void) sd_network_link_get_sip(info->ifindex, &sip);
1717 (void) sd_network_link_get_captive_portal(info->ifindex, &captive_portal);
1718 (void) sd_network_link_get_network_file(info->ifindex, &network);
1719 (void) sd_network_link_get_network_file_dropins(info->ifindex, &network_dropins);
1720 (void) sd_network_link_get_carrier_bound_to(info->ifindex, &carrier_bound_to);
1721 (void) sd_network_link_get_carrier_bound_by(info->ifindex, &carrier_bound_by);
1722 (void) sd_network_link_get_activation_policy(info->ifindex, &activation_policy);
1723
1724 if (info->sd_device) {
1725 const char *joined;
1726
1727 (void) sd_device_get_property_value(info->sd_device, "ID_NET_LINK_FILE", &link);
1728
1729 if (sd_device_get_property_value(info->sd_device, "ID_NET_LINK_FILE_DROPINS", &joined) >= 0) {
1730 r = strv_split_full(&link_dropins, joined, ":", EXTRACT_CUNESCAPE);
1731 if (r < 0)
1732 return r;
1733 }
1734
1735 (void) sd_device_get_property_value(info->sd_device, "ID_NET_DRIVER", &driver);
1736 (void) sd_device_get_property_value(info->sd_device, "ID_PATH", &path);
1737 (void) device_get_vendor_string(info->sd_device, &vendor);
1738 (void) device_get_model_string(info->sd_device, &model);
1739 }
1740
1741 r = net_get_type_string(info->sd_device, info->iftype, &t);
1742 if (r == -ENOMEM)
1743 return log_oom();
1744
1745 char lease_file[STRLEN("/run/systemd/netif/leases/") + DECIMAL_STR_MAX(int)];
1746 xsprintf(lease_file, "/run/systemd/netif/leases/%i", info->ifindex);
1747
1748 (void) dhcp_lease_load(&lease, lease_file);
1749
1750 r = format_dropins(network_dropins);
1751 if (r < 0)
1752 return r;
1753
1754 if (strv_prepend(&network_dropins, network) < 0)
1755 return log_oom();
1756
1757 r = format_dropins(link_dropins);
1758 if (r < 0)
1759 return r;
1760
1761 if (strv_prepend(&link_dropins, link) < 0)
1762 return log_oom();
1763
1764 table = table_new_vertical();
1765 if (!table)
1766 return log_oom();
1767
1768 if (arg_full)
1769 table_set_width(table, 0);
1770
1771 /* unit files and basic states. */
1772 r = table_add_many(table,
1773 TABLE_FIELD, "Link File",
1774 TABLE_STRV, link_dropins ?: STRV_MAKE("n/a"),
1775 TABLE_FIELD, "Network File",
1776 TABLE_STRV, network_dropins ?: STRV_MAKE("n/a"),
1777 TABLE_FIELD, "State");
1778 if (r < 0)
1779 return table_log_add_error(r);
1780
1781 r = table_add_cell_stringf(table, NULL, "%s%s%s (%s%s%s)",
1782 on_color_operational, strna(operational_state), off_color_operational,
1783 on_color_setup, setup_state ?: "unmanaged", off_color_setup);
1784 if (r < 0)
1785 return table_log_add_error(r);
1786
1787 r = table_add_many(table,
1788 TABLE_FIELD, "Online state",
1789 TABLE_STRING, online_state ?: "unknown",
1790 TABLE_SET_COLOR, on_color_online);
1791 if (r < 0)
1792 return table_log_add_error(r);
1793
1794 r = table_add_string_line(table, "Type", t);
1795 if (r < 0)
1796 return r;
1797
1798 r = table_add_string_line(table, "Kind", info->netdev_kind);
1799 if (r < 0)
1800 return r;
1801
1802 r = table_add_string_line(table, "Path", path);
1803 if (r < 0)
1804 return r;
1805
1806 r = table_add_string_line(table, "Driver", driver);
1807 if (r < 0)
1808 return r;
1809
1810 r = table_add_string_line(table, "Vendor", vendor);
1811 if (r < 0)
1812 return r;
1813
1814 r = table_add_string_line(table, "Model", model);
1815 if (r < 0)
1816 return r;
1817
1818 strv_sort(info->alternative_names);
1819 r = dump_list(table, "Alternative Names", info->alternative_names);
1820 if (r < 0)
1821 return r;
1822
1823 if (info->has_hw_address) {
1824 r = dump_hw_address(table, hwdb, "Hardware Address", &info->hw_address);
1825 if (r < 0)
1826 return r;
1827 }
1828
1829 if (info->has_permanent_hw_address) {
1830 r = dump_hw_address(table, hwdb, "Permanent Hardware Address", &info->permanent_hw_address);
1831 if (r < 0)
1832 return r;
1833 }
1834
1835 if (info->mtu > 0) {
1836 char min_str[DECIMAL_STR_MAX(uint32_t)], max_str[DECIMAL_STR_MAX(uint32_t)];
1837
1838 xsprintf(min_str, "%" PRIu32, info->min_mtu);
1839 xsprintf(max_str, "%" PRIu32, info->max_mtu);
1840
1841 r = table_add_cell(table, NULL, TABLE_FIELD, "MTU");
1842 if (r < 0)
1843 return table_log_add_error(r);
1844
1845 r = table_add_cell_stringf(table, NULL, "%" PRIu32 "%s%s%s%s%s%s%s",
1846 info->mtu,
1847 info->min_mtu > 0 || info->max_mtu > 0 ? " (" : "",
1848 info->min_mtu > 0 ? "min: " : "",
1849 info->min_mtu > 0 ? min_str : "",
1850 info->min_mtu > 0 && info->max_mtu > 0 ? ", " : "",
1851 info->max_mtu > 0 ? "max: " : "",
1852 info->max_mtu > 0 ? max_str : "",
1853 info->min_mtu > 0 || info->max_mtu > 0 ? ")" : "");
1854 if (r < 0)
1855 return table_log_add_error(r);
1856 }
1857
1858 r = table_add_string_line(table, "QDisc", info->qdisc);
1859 if (r < 0)
1860 return r;
1861
1862 if (info->master > 0) {
1863 r = table_add_many(table,
1864 TABLE_FIELD, "Master",
1865 TABLE_IFINDEX, info->master);
1866 if (r < 0)
1867 return table_log_add_error(r);
1868 }
1869
1870 if (info->has_ipv6_address_generation_mode) {
1871 static const struct {
1872 const char *mode;
1873 } mode_table[] = {
1874 { "eui64" },
1875 { "none" },
1876 { "stable-privacy" },
1877 { "random" },
1878 };
1879
1880 r = table_add_many(table,
1881 TABLE_FIELD, "IPv6 Address Generation Mode",
1882 TABLE_STRING, mode_table[info->addr_gen_mode]);
1883 if (r < 0)
1884 return table_log_add_error(r);
1885 }
1886
1887 if (streq_ptr(info->netdev_kind, "bridge")) {
1888 r = table_add_many(table,
1889 TABLE_FIELD, "Forward Delay",
1890 TABLE_TIMESPAN_MSEC, jiffies_to_usec(info->forward_delay),
1891 TABLE_FIELD, "Hello Time",
1892 TABLE_TIMESPAN_MSEC, jiffies_to_usec(info->hello_time),
1893 TABLE_FIELD, "Max Age",
1894 TABLE_TIMESPAN_MSEC, jiffies_to_usec(info->max_age),
1895 TABLE_FIELD, "Ageing Time",
1896 TABLE_TIMESPAN_MSEC, jiffies_to_usec(info->ageing_time),
1897 TABLE_FIELD, "Priority",
1898 TABLE_UINT16, info->priority,
1899 TABLE_FIELD, "STP",
1900 TABLE_BOOLEAN, info->stp_state > 0,
1901 TABLE_FIELD, "Multicast IGMP Version",
1902 TABLE_UINT8, info->mcast_igmp_version,
1903 TABLE_FIELD, "Cost",
1904 TABLE_UINT32, info->cost);
1905 if (r < 0)
1906 return table_log_add_error(r);
1907
1908 if (info->port_state <= BR_STATE_BLOCKING) {
1909 r = table_add_many(table,
1910 TABLE_FIELD, "Port State",
1911 TABLE_STRING, bridge_state_to_string(info->port_state));
1912 if (r < 0)
1913 return table_log_add_error(r);
1914 }
1915
1916 } else if (streq_ptr(info->netdev_kind, "bond")) {
1917 r = table_add_many(table,
1918 TABLE_FIELD, "Mode",
1919 TABLE_STRING, bond_mode_to_string(info->mode),
1920 TABLE_FIELD, "Miimon",
1921 TABLE_TIMESPAN_MSEC, info->miimon * USEC_PER_MSEC,
1922 TABLE_FIELD, "Updelay",
1923 TABLE_TIMESPAN_MSEC, info->updelay * USEC_PER_MSEC,
1924 TABLE_FIELD, "Downdelay",
1925 TABLE_TIMESPAN_MSEC, info->downdelay * USEC_PER_MSEC);
1926 if (r < 0)
1927 return table_log_add_error(r);
1928
1929 } else if (streq_ptr(info->netdev_kind, "vxlan")) {
1930 char ttl[CONST_MAX(STRLEN("auto") + 1, DECIMAL_STR_MAX(uint8_t))];
1931
1932 if (info->vxlan_info.vni > 0) {
1933 r = table_add_many(table,
1934 TABLE_FIELD, "VNI",
1935 TABLE_UINT32, info->vxlan_info.vni);
1936 if (r < 0)
1937 return table_log_add_error(r);
1938 }
1939
1940 if (IN_SET(info->vxlan_info.group_family, AF_INET, AF_INET6)) {
1941 const char *p;
1942
1943 r = in_addr_is_multicast(info->vxlan_info.group_family, &info->vxlan_info.group);
1944 if (r <= 0)
1945 p = "Remote";
1946 else
1947 p = "Group";
1948
1949 r = table_add_many(table,
1950 TABLE_FIELD, p,
1951 info->vxlan_info.group_family == AF_INET ? TABLE_IN_ADDR : TABLE_IN6_ADDR, &info->vxlan_info.group);
1952 if (r < 0)
1953 return table_log_add_error(r);
1954 }
1955
1956 if (IN_SET(info->vxlan_info.local_family, AF_INET, AF_INET6)) {
1957 r = table_add_many(table,
1958 TABLE_FIELD, "Local",
1959 info->vxlan_info.local_family == AF_INET ? TABLE_IN_ADDR : TABLE_IN6_ADDR, &info->vxlan_info.local);
1960 if (r < 0)
1961 return table_log_add_error(r);
1962 }
1963
1964 if (info->vxlan_info.dest_port > 0) {
1965 r = table_add_many(table,
1966 TABLE_FIELD, "Destination Port",
1967 TABLE_UINT16, be16toh(info->vxlan_info.dest_port));
1968 if (r < 0)
1969 return table_log_add_error(r);
1970 }
1971
1972 if (info->vxlan_info.link > 0) {
1973 r = table_add_many(table,
1974 TABLE_FIELD, "Underlying Device",
1975 TABLE_IFINDEX, info->vxlan_info.link);
1976 if (r < 0)
1977 return table_log_add_error(r);
1978 }
1979
1980 r = table_add_many(table,
1981 TABLE_FIELD, "Learning",
1982 TABLE_BOOLEAN, info->vxlan_info.learning,
1983 TABLE_FIELD, "RSC",
1984 TABLE_BOOLEAN, info->vxlan_info.rsc,
1985 TABLE_FIELD, "L3MISS",
1986 TABLE_BOOLEAN, info->vxlan_info.l3miss,
1987 TABLE_FIELD, "L2MISS",
1988 TABLE_BOOLEAN, info->vxlan_info.l2miss);
1989 if (r < 0)
1990 return table_log_add_error(r);
1991
1992 if (info->vxlan_info.tos > 1) {
1993 r = table_add_many(table,
1994 TABLE_FIELD, "TOS",
1995 TABLE_UINT8, info->vxlan_info.tos);
1996 if (r < 0)
1997 return table_log_add_error(r);
1998 }
1999
2000 if (info->vxlan_info.ttl > 0)
2001 xsprintf(ttl, "%" PRIu8, info->vxlan_info.ttl);
2002 else
2003 strcpy(ttl, "auto");
2004
2005 r = table_add_many(table,
2006 TABLE_FIELD, "TTL",
2007 TABLE_STRING, ttl);
2008 if (r < 0)
2009 return table_log_add_error(r);
2010
2011 } else if (streq_ptr(info->netdev_kind, "vlan") && info->vlan_id > 0) {
2012 r = table_add_many(table,
2013 TABLE_FIELD, "VLan Id",
2014 TABLE_UINT16, info->vlan_id);
2015 if (r < 0)
2016 return table_log_add_error(r);
2017
2018 } else if (STRPTR_IN_SET(info->netdev_kind, "ipip", "sit", "gre", "gretap", "erspan", "vti")) {
2019 if (in_addr_is_set(AF_INET, &info->local)) {
2020 r = table_add_many(table,
2021 TABLE_FIELD, "Local",
2022 TABLE_IN_ADDR, &info->local);
2023 if (r < 0)
2024 return table_log_add_error(r);
2025 }
2026
2027 if (in_addr_is_set(AF_INET, &info->remote)) {
2028 r = table_add_many(table,
2029 TABLE_FIELD, "Remote",
2030 TABLE_IN_ADDR, &info->remote);
2031 if (r < 0)
2032 return table_log_add_error(r);
2033 }
2034
2035 } else if (STRPTR_IN_SET(info->netdev_kind, "ip6gre", "ip6gretap", "ip6erspan", "vti6")) {
2036 if (in_addr_is_set(AF_INET6, &info->local)) {
2037 r = table_add_many(table,
2038 TABLE_FIELD, "Local",
2039 TABLE_IN6_ADDR, &info->local);
2040 if (r < 0)
2041 return table_log_add_error(r);
2042 }
2043
2044 if (in_addr_is_set(AF_INET6, &info->remote)) {
2045 r = table_add_many(table,
2046 TABLE_FIELD, "Remote",
2047 TABLE_IN6_ADDR, &info->remote);
2048 if (r < 0)
2049 return table_log_add_error(r);
2050 }
2051
2052 } else if (streq_ptr(info->netdev_kind, "geneve")) {
2053 r = table_add_many(table,
2054 TABLE_FIELD, "VNI",
2055 TABLE_UINT32, info->vni);
2056 if (r < 0)
2057 return table_log_add_error(r);
2058
2059 if (info->has_tunnel_ipv4 && in_addr_is_set(AF_INET, &info->remote)) {
2060 r = table_add_many(table,
2061 TABLE_FIELD, "Remote",
2062 TABLE_IN_ADDR, &info->remote);
2063 if (r < 0)
2064 return table_log_add_error(r);
2065 } else if (in_addr_is_set(AF_INET6, &info->remote)) {
2066 r = table_add_many(table,
2067 TABLE_FIELD, "Remote",
2068 TABLE_IN6_ADDR, &info->remote);
2069 if (r < 0)
2070 return table_log_add_error(r);
2071 }
2072
2073 if (info->ttl > 0) {
2074 r = table_add_many(table,
2075 TABLE_FIELD, "TTL",
2076 TABLE_UINT8, info->ttl);
2077 if (r < 0)
2078 return table_log_add_error(r);
2079 }
2080
2081 if (info->tos > 0) {
2082 r = table_add_many(table,
2083 TABLE_FIELD, "TOS",
2084 TABLE_UINT8, info->tos);
2085 if (r < 0)
2086 return table_log_add_error(r);
2087 }
2088
2089 r = table_add_many(table,
2090 TABLE_FIELD, "Port",
2091 TABLE_UINT16, info->tunnel_port,
2092 TABLE_FIELD, "Inherit",
2093 TABLE_STRING, geneve_df_to_string(info->inherit));
2094 if (r < 0)
2095 return table_log_add_error(r);
2096
2097 if (info->df > 0) {
2098 r = table_add_many(table,
2099 TABLE_FIELD, "IPDoNotFragment",
2100 TABLE_UINT8, info->df);
2101 if (r < 0)
2102 return table_log_add_error(r);
2103 }
2104
2105 r = table_add_many(table,
2106 TABLE_FIELD, "UDPChecksum",
2107 TABLE_BOOLEAN, info->csum,
2108 TABLE_FIELD, "UDP6ZeroChecksumTx",
2109 TABLE_BOOLEAN, info->csum6_tx,
2110 TABLE_FIELD, "UDP6ZeroChecksumRx",
2111 TABLE_BOOLEAN, info->csum6_rx);
2112 if (r < 0)
2113 return table_log_add_error(r);
2114
2115 if (info->label > 0) {
2116 r = table_add_many(table,
2117 TABLE_FIELD, "FlowLabel",
2118 TABLE_UINT32, info->label);
2119 if (r < 0)
2120 return table_log_add_error(r);
2121 }
2122
2123 } else if (STRPTR_IN_SET(info->netdev_kind, "macvlan", "macvtap")) {
2124 r = table_add_many(table,
2125 TABLE_FIELD, "Mode",
2126 TABLE_STRING, macvlan_mode_to_string(info->macvlan_mode));
2127 if (r < 0)
2128 return table_log_add_error(r);
2129
2130 } else if (streq_ptr(info->netdev_kind, "ipvlan")) {
2131 const char *p;
2132
2133 if (info->ipvlan_flags & IPVLAN_F_PRIVATE)
2134 p = "private";
2135 else if (info->ipvlan_flags & IPVLAN_F_VEPA)
2136 p = "vepa";
2137 else
2138 p = "bridge";
2139
2140 r = table_add_cell(table, NULL, TABLE_FIELD, "Mode");
2141 if (r < 0)
2142 return table_log_add_error(r);
2143
2144 r = table_add_cell_stringf(table, NULL, "%s (%s)",
2145 ipvlan_mode_to_string(info->ipvlan_mode), p);
2146 if (r < 0)
2147 return table_log_add_error(r);
2148 }
2149
2150 if (info->has_wlan_link_info) {
2151 _cleanup_free_ char *esc = NULL;
2152
2153 r = table_add_cell(table, NULL, TABLE_FIELD, "Wi-Fi access point");
2154 if (r < 0)
2155 return table_log_add_error(r);
2156
2157 if (info->ssid)
2158 esc = cescape(info->ssid);
2159
2160 r = table_add_cell_stringf(table, NULL, "%s (%s)",
2161 strnull(esc),
2162 ETHER_ADDR_TO_STR(&info->bssid));
2163 if (r < 0)
2164 return table_log_add_error(r);
2165 }
2166
2167 if (info->has_bitrates) {
2168 r = table_add_cell(table, NULL, TABLE_FIELD, "Bit Rate (Tx/Rx)");
2169 if (r < 0)
2170 return table_log_add_error(r);
2171
2172 r = table_add_cell_stringf(table, NULL, "%sbps/%sbps",
2173 FORMAT_BYTES_FULL(info->tx_bitrate, 0),
2174 FORMAT_BYTES_FULL(info->rx_bitrate, 0));
2175 if (r < 0)
2176 return table_log_add_error(r);
2177 }
2178
2179 if (info->has_tx_queues || info->has_rx_queues) {
2180 r = table_add_cell(table, NULL, TABLE_FIELD, "Number of Queues (Tx/Rx)");
2181 if (r < 0)
2182 return table_log_add_error(r);
2183
2184 r = table_add_cell_stringf(table, NULL, "%" PRIu32 "/%" PRIu32, info->tx_queues, info->rx_queues);
2185 if (r < 0)
2186 return table_log_add_error(r);
2187 }
2188
2189 if (info->has_ethtool_link_info) {
2190 if (IN_SET(info->autonegotiation, AUTONEG_DISABLE, AUTONEG_ENABLE)) {
2191 r = table_add_many(table,
2192 TABLE_FIELD, "Auto negotiation",
2193 TABLE_BOOLEAN, info->autonegotiation == AUTONEG_ENABLE);
2194 if (r < 0)
2195 return table_log_add_error(r);
2196 }
2197
2198 if (info->speed > 0 && info->speed != UINT64_MAX) {
2199 r = table_add_many(table,
2200 TABLE_FIELD, "Speed",
2201 TABLE_BPS, info->speed);
2202 if (r < 0)
2203 return table_log_add_error(r);
2204 }
2205
2206 r = table_add_string_line(table, "Duplex", duplex_to_string(info->duplex));
2207 if (r < 0)
2208 return r;
2209
2210 r = table_add_string_line(table, "Port", port_to_string(info->port));
2211 if (r < 0)
2212 return r;
2213 }
2214
2215 r = dump_addresses(rtnl, lease, table, info->ifindex);
2216 if (r < 0)
2217 return r;
2218
2219 r = dump_gateways(rtnl, hwdb, table, info->ifindex);
2220 if (r < 0)
2221 return r;
2222
2223 r = dump_list(table, "DNS", dns);
2224 if (r < 0)
2225 return r;
2226
2227 r = dump_list(table, "Search Domains", search_domains);
2228 if (r < 0)
2229 return r;
2230
2231 r = dump_list(table, "Route Domains", route_domains);
2232 if (r < 0)
2233 return r;
2234
2235 r = dump_list(table, "NTP", ntp);
2236 if (r < 0)
2237 return r;
2238
2239 r = dump_list(table, "SIP", sip);
2240 if (r < 0)
2241 return r;
2242
2243 r = dump_ifindexes(table, "Carrier Bound To", carrier_bound_to);
2244 if (r < 0)
2245 return r;
2246
2247 r = dump_ifindexes(table, "Carrier Bound By", carrier_bound_by);
2248 if (r < 0)
2249 return r;
2250
2251 r = table_add_string_line(table, "Activation Policy", activation_policy);
2252 if (r < 0)
2253 return r;
2254
2255 r = sd_network_link_get_required_for_online(info->ifindex);
2256 if (r >= 0) {
2257 r = table_add_many(table,
2258 TABLE_FIELD, "Required For Online",
2259 TABLE_BOOLEAN, r);
2260 if (r < 0)
2261 return table_log_add_error(r);
2262 }
2263
2264 if (captive_portal) {
2265 r = table_add_many(table,
2266 TABLE_FIELD, "Captive Portal",
2267 TABLE_STRING, captive_portal,
2268 TABLE_SET_URL, captive_portal);
2269 if (r < 0)
2270 return table_log_add_error(r);
2271 }
2272
2273 if (lease) {
2274 const sd_dhcp_client_id *client_id;
2275 const char *tz;
2276
2277 r = sd_dhcp_lease_get_timezone(lease, &tz);
2278 if (r >= 0) {
2279 r = table_add_many(table,
2280 TABLE_FIELD, "Time Zone",
2281 TABLE_STRING, tz);
2282 if (r < 0)
2283 return table_log_add_error(r);
2284 }
2285
2286 r = sd_dhcp_lease_get_client_id(lease, &client_id);
2287 if (r >= 0) {
2288 _cleanup_free_ char *id = NULL;
2289
2290 r = sd_dhcp_client_id_to_string(client_id, &id);
2291 if (r >= 0) {
2292 r = table_add_many(table,
2293 TABLE_FIELD, "DHCP4 Client ID",
2294 TABLE_STRING, id);
2295 if (r < 0)
2296 return table_log_add_error(r);
2297 }
2298 }
2299 }
2300
2301 r = sd_network_link_get_dhcp6_client_iaid_string(info->ifindex, &iaid);
2302 if (r >= 0) {
2303 r = table_add_many(table,
2304 TABLE_FIELD, "DHCP6 Client IAID",
2305 TABLE_STRING, iaid);
2306 if (r < 0)
2307 return table_log_add_error(r);
2308 }
2309
2310 r = sd_network_link_get_dhcp6_client_duid_string(info->ifindex, &duid);
2311 if (r >= 0) {
2312 r = table_add_many(table,
2313 TABLE_FIELD, "DHCP6 Client DUID",
2314 TABLE_STRING, duid);
2315 if (r < 0)
2316 return table_log_add_error(r);
2317 }
2318
2319 r = dump_lldp_neighbors(table, "Connected To", info->ifindex);
2320 if (r < 0)
2321 return r;
2322
2323 r = dump_dhcp_leases(table, "Offered DHCP leases", bus, info);
2324 if (r < 0)
2325 return r;
2326
2327 r = dump_statistics(table, info);
2328 if (r < 0)
2329 return r;
2330
2331 /* First line: circle, ifindex, ifname. */
2332 printf("%s%s%s %d: %s\n",
2333 on_color_operational, special_glyph(SPECIAL_GLYPH_BLACK_CIRCLE), off_color_operational,
2334 info->ifindex, info->name);
2335
2336 r = table_print(table, NULL);
2337 if (r < 0)
2338 return table_log_print_error(r);
2339
2340 return show_logs(info);
2341 }
2342
2343 static int system_status(sd_netlink *rtnl, sd_hwdb *hwdb) {
2344 _cleanup_free_ char *operational_state = NULL, *online_state = NULL, *netifs_joined = NULL;
2345 _cleanup_strv_free_ char **netifs = NULL, **dns = NULL, **ntp = NULL, **search_domains = NULL, **route_domains = NULL;
2346 const char *on_color_operational, *off_color_operational, *on_color_online;
2347 _cleanup_(table_unrefp) Table *table = NULL;
2348 int r;
2349
2350 assert(rtnl);
2351
2352 (void) sd_network_get_operational_state(&operational_state);
2353 operational_state_to_color(NULL, operational_state, &on_color_operational, &off_color_operational);
2354
2355 (void) sd_network_get_online_state(&online_state);
2356 online_state_to_color(online_state, &on_color_online, NULL);
2357
2358 table = table_new_vertical();
2359 if (!table)
2360 return log_oom();
2361
2362 if (arg_full)
2363 table_set_width(table, 0);
2364
2365 r = get_files_in_directory("/run/systemd/netif/links/", &netifs);
2366 if (r < 0 && r != -ENOENT)
2367 return log_error_errno(r, "Failed to list network interfaces: %m");
2368 else if (r > 0) {
2369 netifs_joined = strv_join(netifs, ", ");
2370 if (!netifs_joined)
2371 return log_oom();
2372 }
2373
2374 r = table_add_many(table,
2375 TABLE_FIELD, "State",
2376 TABLE_STRING, strna(operational_state),
2377 TABLE_SET_COLOR, on_color_operational,
2378 TABLE_FIELD, "Online state",
2379 TABLE_STRING, online_state ?: "unknown",
2380 TABLE_SET_COLOR, on_color_online);
2381 if (r < 0)
2382 return table_log_add_error(r);
2383
2384 r = dump_addresses(rtnl, NULL, table, 0);
2385 if (r < 0)
2386 return r;
2387
2388 r = dump_gateways(rtnl, hwdb, table, 0);
2389 if (r < 0)
2390 return r;
2391
2392 (void) sd_network_get_dns(&dns);
2393 r = dump_list(table, "DNS", dns);
2394 if (r < 0)
2395 return r;
2396
2397 (void) sd_network_get_search_domains(&search_domains);
2398 r = dump_list(table, "Search Domains", search_domains);
2399 if (r < 0)
2400 return r;
2401
2402 (void) sd_network_get_route_domains(&route_domains);
2403 r = dump_list(table, "Route Domains", route_domains);
2404 if (r < 0)
2405 return r;
2406
2407 (void) sd_network_get_ntp(&ntp);
2408 r = dump_list(table, "NTP", ntp);
2409 if (r < 0)
2410 return r;
2411
2412 printf("%s%s%s Interfaces: %s\n",
2413 on_color_operational, special_glyph(SPECIAL_GLYPH_BLACK_CIRCLE), off_color_operational,
2414 strna(netifs_joined));
2415
2416 r = table_print(table, NULL);
2417 if (r < 0)
2418 return table_log_print_error(r);
2419
2420 return show_logs(NULL);
2421 }
2422
2423 static int link_status(int argc, char *argv[], void *userdata) {
2424 _cleanup_(sd_bus_flush_close_unrefp) sd_bus *bus = NULL;
2425 _cleanup_(sd_netlink_unrefp) sd_netlink *rtnl = NULL;
2426 _cleanup_(sd_hwdb_unrefp) sd_hwdb *hwdb = NULL;
2427 _cleanup_(link_info_array_freep) LinkInfo *links = NULL;
2428 int r, c;
2429
2430 r = acquire_bus(&bus);
2431 if (r < 0)
2432 return r;
2433
2434 if (arg_json_format_flags != JSON_FORMAT_OFF) {
2435 if (arg_all || argc <= 1)
2436 return dump_manager_description(bus);
2437 else
2438 return dump_link_description(bus, strv_skip(argv, 1));
2439 }
2440
2441 pager_open(arg_pager_flags);
2442
2443 r = sd_netlink_open(&rtnl);
2444 if (r < 0)
2445 return log_error_errno(r, "Failed to connect to netlink: %m");
2446
2447 r = sd_hwdb_new(&hwdb);
2448 if (r < 0)
2449 log_debug_errno(r, "Failed to open hardware database: %m");
2450
2451 if (arg_all)
2452 c = acquire_link_info(bus, rtnl, NULL, &links);
2453 else if (argc <= 1)
2454 return system_status(rtnl, hwdb);
2455 else
2456 c = acquire_link_info(bus, rtnl, argv + 1, &links);
2457 if (c < 0)
2458 return c;
2459
2460 r = 0;
2461
2462 bool first = true;
2463 FOREACH_ARRAY(i, links, c) {
2464 if (!first)
2465 putchar('\n');
2466
2467 RET_GATHER(r, link_status_one(bus, rtnl, hwdb, i));
2468
2469 first = false;
2470 }
2471
2472 return r;
2473 }
2474
2475 static char *lldp_capabilities_to_string(uint16_t x) {
2476 static const char characters[] = {
2477 'o', 'p', 'b', 'w', 'r', 't', 'd', 'a', 'c', 's', 'm',
2478 };
2479 char *ret;
2480 unsigned i;
2481
2482 ret = new(char, ELEMENTSOF(characters) + 1);
2483 if (!ret)
2484 return NULL;
2485
2486 for (i = 0; i < ELEMENTSOF(characters); i++)
2487 ret[i] = (x & (1U << i)) ? characters[i] : '.';
2488
2489 ret[i] = 0;
2490 return ret;
2491 }
2492
2493 static void lldp_capabilities_legend(uint16_t x) {
2494 unsigned cols = columns();
2495 static const char* const table[] = {
2496 "o - Other",
2497 "p - Repeater",
2498 "b - Bridge",
2499 "w - WLAN Access Point",
2500 "r - Router",
2501 "t - Telephone",
2502 "d - DOCSIS cable device",
2503 "a - Station",
2504 "c - Customer VLAN",
2505 "s - Service VLAN",
2506 "m - Two-port MAC Relay (TPMR)",
2507 };
2508
2509 if (x == 0)
2510 return;
2511
2512 printf("\nCapability Flags:\n");
2513 for (unsigned w = 0, i = 0; i < ELEMENTSOF(table); i++)
2514 if (x & (1U << i) || arg_all) {
2515 bool newline;
2516
2517 newline = w + strlen(table[i]) + (w == 0 ? 0 : 2) > cols;
2518 if (newline)
2519 w = 0;
2520 w += printf("%s%s%s", newline ? "\n" : "", w == 0 ? "" : "; ", table[i]);
2521 }
2522 puts("");
2523 }
2524
2525 static int link_lldp_status(int argc, char *argv[], void *userdata) {
2526 _cleanup_(sd_netlink_unrefp) sd_netlink *rtnl = NULL;
2527 _cleanup_(link_info_array_freep) LinkInfo *links = NULL;
2528 _cleanup_(table_unrefp) Table *table = NULL;
2529 int r, c, m = 0;
2530 uint16_t all = 0;
2531 TableCell *cell;
2532
2533 r = sd_netlink_open(&rtnl);
2534 if (r < 0)
2535 return log_error_errno(r, "Failed to connect to netlink: %m");
2536
2537 c = acquire_link_info(NULL, rtnl, argc > 1 ? argv + 1 : NULL, &links);
2538 if (c < 0)
2539 return c;
2540
2541 pager_open(arg_pager_flags);
2542
2543 table = table_new("link",
2544 "chassis-id",
2545 "system-name",
2546 "caps",
2547 "port-id",
2548 "port-description");
2549 if (!table)
2550 return log_oom();
2551
2552 if (arg_full)
2553 table_set_width(table, 0);
2554
2555 table_set_header(table, arg_legend);
2556
2557 assert_se(cell = table_get_cell(table, 0, 3));
2558 table_set_minimum_width(table, cell, 11);
2559 table_set_ersatz_string(table, TABLE_ERSATZ_DASH);
2560
2561 FOREACH_ARRAY(link, links, c) {
2562 _cleanup_fclose_ FILE *f = NULL;
2563
2564 r = open_lldp_neighbors(link->ifindex, &f);
2565 if (r == -ENOENT)
2566 continue;
2567 if (r < 0) {
2568 log_warning_errno(r, "Failed to open LLDP data for %i, ignoring: %m", link->ifindex);
2569 continue;
2570 }
2571
2572 for (;;) {
2573 const char *chassis_id = NULL, *port_id = NULL, *system_name = NULL, *port_description = NULL;
2574 _cleanup_(sd_lldp_neighbor_unrefp) sd_lldp_neighbor *n = NULL;
2575 _cleanup_free_ char *capabilities = NULL;
2576 uint16_t cc;
2577
2578 r = next_lldp_neighbor(f, &n);
2579 if (r < 0) {
2580 log_warning_errno(r, "Failed to read neighbor data: %m");
2581 break;
2582 }
2583 if (r == 0)
2584 break;
2585
2586 (void) sd_lldp_neighbor_get_chassis_id_as_string(n, &chassis_id);
2587 (void) sd_lldp_neighbor_get_port_id_as_string(n, &port_id);
2588 (void) sd_lldp_neighbor_get_system_name(n, &system_name);
2589 (void) sd_lldp_neighbor_get_port_description(n, &port_description);
2590
2591 if (sd_lldp_neighbor_get_enabled_capabilities(n, &cc) >= 0) {
2592 capabilities = lldp_capabilities_to_string(cc);
2593 all |= cc;
2594 }
2595
2596 r = table_add_many(table,
2597 TABLE_STRING, link->name,
2598 TABLE_STRING, chassis_id,
2599 TABLE_STRING, system_name,
2600 TABLE_STRING, capabilities,
2601 TABLE_STRING, port_id,
2602 TABLE_STRING, port_description);
2603 if (r < 0)
2604 return table_log_add_error(r);
2605
2606 m++;
2607 }
2608 }
2609
2610 r = table_print(table, NULL);
2611 if (r < 0)
2612 return table_log_print_error(r);
2613
2614 if (arg_legend) {
2615 lldp_capabilities_legend(all);
2616 printf("\n%i neighbors listed.\n", m);
2617 }
2618
2619 return 0;
2620 }
2621
2622 static int link_delete_send_message(sd_netlink *rtnl, int index) {
2623 _cleanup_(sd_netlink_message_unrefp) sd_netlink_message *req = NULL;
2624 int r;
2625
2626 assert(rtnl);
2627 assert(index >= 0);
2628
2629 r = sd_rtnl_message_new_link(rtnl, &req, RTM_DELLINK, index);
2630 if (r < 0)
2631 return rtnl_log_create_error(r);
2632
2633 r = sd_netlink_call(rtnl, req, 0, NULL);
2634 if (r < 0)
2635 return r;
2636
2637 return 0;
2638 }
2639
2640 static int link_up_down_send_message(sd_netlink *rtnl, char *command, int index) {
2641 _cleanup_(sd_netlink_message_unrefp) sd_netlink_message *req = NULL;
2642 int r;
2643
2644 assert(rtnl);
2645 assert(index >= 0);
2646
2647 r = sd_rtnl_message_new_link(rtnl, &req, RTM_SETLINK, index);
2648 if (r < 0)
2649 return rtnl_log_create_error(r);
2650
2651 if (streq(command, "up"))
2652 r = sd_rtnl_message_link_set_flags(req, IFF_UP, IFF_UP);
2653 else
2654 r = sd_rtnl_message_link_set_flags(req, 0, IFF_UP);
2655 if (r < 0)
2656 return log_error_errno(r, "Could not set link flags: %m");
2657
2658 r = sd_netlink_call(rtnl, req, 0, NULL);
2659 if (r < 0)
2660 return r;
2661
2662 return 0;
2663 }
2664
2665 static int link_up_down(int argc, char *argv[], void *userdata) {
2666 _cleanup_(sd_netlink_unrefp) sd_netlink *rtnl = NULL;
2667 _cleanup_set_free_ Set *indexes = NULL;
2668 int index, r;
2669 void *p;
2670
2671 r = sd_netlink_open(&rtnl);
2672 if (r < 0)
2673 return log_error_errno(r, "Failed to connect to netlink: %m");
2674
2675 indexes = set_new(NULL);
2676 if (!indexes)
2677 return log_oom();
2678
2679 for (int i = 1; i < argc; i++) {
2680 index = rtnl_resolve_interface_or_warn(&rtnl, argv[i]);
2681 if (index < 0)
2682 return index;
2683
2684 r = set_put(indexes, INT_TO_PTR(index));
2685 if (r < 0)
2686 return log_oom();
2687 }
2688
2689 SET_FOREACH(p, indexes) {
2690 index = PTR_TO_INT(p);
2691 r = link_up_down_send_message(rtnl, argv[0], index);
2692 if (r < 0)
2693 return log_error_errno(r, "Failed to bring %s interface %s: %m",
2694 argv[0], FORMAT_IFNAME_FULL(index, FORMAT_IFNAME_IFINDEX));
2695 }
2696
2697 return r;
2698 }
2699
2700 static int link_delete(int argc, char *argv[], void *userdata) {
2701 _cleanup_(sd_netlink_unrefp) sd_netlink *rtnl = NULL;
2702 _cleanup_set_free_ Set *indexes = NULL;
2703 int index, r;
2704 void *p;
2705
2706 r = sd_netlink_open(&rtnl);
2707 if (r < 0)
2708 return log_error_errno(r, "Failed to connect to netlink: %m");
2709
2710 indexes = set_new(NULL);
2711 if (!indexes)
2712 return log_oom();
2713
2714 for (int i = 1; i < argc; i++) {
2715 index = rtnl_resolve_interface_or_warn(&rtnl, argv[i]);
2716 if (index < 0)
2717 return index;
2718
2719 r = set_put(indexes, INT_TO_PTR(index));
2720 if (r < 0)
2721 return log_oom();
2722 }
2723
2724 SET_FOREACH(p, indexes) {
2725 index = PTR_TO_INT(p);
2726 r = link_delete_send_message(rtnl, index);
2727 if (r < 0)
2728 return log_error_errno(r, "Failed to delete interface %s: %m",
2729 FORMAT_IFNAME_FULL(index, FORMAT_IFNAME_IFINDEX));
2730 }
2731
2732 return r;
2733 }
2734
2735 static int link_renew_one(sd_bus *bus, int index, const char *name) {
2736 _cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL;
2737 int r;
2738
2739 assert(bus);
2740 assert(index >= 0);
2741 assert(name);
2742
2743 r = bus_call_method(bus, bus_network_mgr, "RenewLink", &error, NULL, "i", index);
2744 if (r < 0)
2745 return log_error_errno(r, "Failed to renew dynamic configuration of interface %s: %s",
2746 name, bus_error_message(&error, r));
2747
2748 return 0;
2749 }
2750
2751 static int link_renew(int argc, char *argv[], void *userdata) {
2752 _cleanup_(sd_bus_flush_close_unrefp) sd_bus *bus = NULL;
2753 _cleanup_(sd_netlink_unrefp) sd_netlink *rtnl = NULL;
2754 int r;
2755
2756 r = acquire_bus(&bus);
2757 if (r < 0)
2758 return r;
2759
2760 r = 0;
2761
2762 for (int i = 1; i < argc; i++) {
2763 int index;
2764
2765 index = rtnl_resolve_interface_or_warn(&rtnl, argv[i]);
2766 if (index < 0)
2767 return index;
2768
2769 RET_GATHER(r, link_renew_one(bus, index, argv[i]));
2770 }
2771
2772 return r;
2773 }
2774
2775 static int link_force_renew_one(sd_bus *bus, int index, const char *name) {
2776 _cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL;
2777 int r;
2778
2779 assert(bus);
2780 assert(index >= 0);
2781 assert(name);
2782
2783 r = bus_call_method(bus, bus_network_mgr, "ForceRenewLink", &error, NULL, "i", index);
2784 if (r < 0)
2785 return log_error_errno(r, "Failed to force renew dynamic configuration of interface %s: %s",
2786 name, bus_error_message(&error, r));
2787
2788 return 0;
2789 }
2790
2791 static int link_force_renew(int argc, char *argv[], void *userdata) {
2792 _cleanup_(sd_bus_flush_close_unrefp) sd_bus *bus = NULL;
2793 _cleanup_(sd_netlink_unrefp) sd_netlink *rtnl = NULL;
2794 int k = 0, r;
2795
2796 r = acquire_bus(&bus);
2797 if (r < 0)
2798 return r;
2799
2800 for (int i = 1; i < argc; i++) {
2801 int index = rtnl_resolve_interface_or_warn(&rtnl, argv[i]);
2802 if (index < 0)
2803 return index;
2804
2805 r = link_force_renew_one(bus, index, argv[i]);
2806 if (r < 0 && k >= 0)
2807 k = r;
2808 }
2809
2810 return k;
2811 }
2812
2813 static int verb_reload(int argc, char *argv[], void *userdata) {
2814 _cleanup_(sd_bus_flush_close_unrefp) sd_bus *bus = NULL;
2815 _cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL;
2816 int r;
2817
2818 r = acquire_bus(&bus);
2819 if (r < 0)
2820 return r;
2821
2822 r = bus_call_method(bus, bus_network_mgr, "Reload", &error, NULL, NULL);
2823 if (r < 0)
2824 return log_error_errno(r, "Failed to reload network settings: %s", bus_error_message(&error, r));
2825
2826 return 0;
2827 }
2828
2829 static int verb_reconfigure(int argc, char *argv[], void *userdata) {
2830 _cleanup_(sd_bus_flush_close_unrefp) sd_bus *bus = NULL;
2831 _cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL;
2832 _cleanup_(sd_netlink_unrefp) sd_netlink *rtnl = NULL;
2833 _cleanup_set_free_ Set *indexes = NULL;
2834 int index, r;
2835 void *p;
2836
2837 r = acquire_bus(&bus);
2838 if (r < 0)
2839 return r;
2840
2841 indexes = set_new(NULL);
2842 if (!indexes)
2843 return log_oom();
2844
2845 for (int i = 1; i < argc; i++) {
2846 index = rtnl_resolve_interface_or_warn(&rtnl, argv[i]);
2847 if (index < 0)
2848 return index;
2849
2850 r = set_put(indexes, INT_TO_PTR(index));
2851 if (r < 0)
2852 return log_oom();
2853 }
2854
2855 SET_FOREACH(p, indexes) {
2856 index = PTR_TO_INT(p);
2857 r = bus_call_method(bus, bus_network_mgr, "ReconfigureLink", &error, NULL, "i", index);
2858 if (r < 0)
2859 return log_error_errno(r, "Failed to reconfigure network interface %s: %s",
2860 FORMAT_IFNAME_FULL(index, FORMAT_IFNAME_IFINDEX),
2861 bus_error_message(&error, r));
2862 }
2863
2864 return 0;
2865 }
2866
2867 static int help(void) {
2868 _cleanup_free_ char *link = NULL;
2869 int r;
2870
2871 r = terminal_urlify_man("networkctl", "1", &link);
2872 if (r < 0)
2873 return log_oom();
2874
2875 printf("%s [OPTIONS...] COMMAND\n\n"
2876 "%sQuery and control the networking subsystem.%s\n"
2877 "\nCommands:\n"
2878 " list [PATTERN...] List links\n"
2879 " status [PATTERN...] Show link status\n"
2880 " lldp [PATTERN...] Show LLDP neighbors\n"
2881 " label Show current address label entries in the kernel\n"
2882 " delete DEVICES... Delete virtual netdevs\n"
2883 " up DEVICES... Bring devices up\n"
2884 " down DEVICES... Bring devices down\n"
2885 " renew DEVICES... Renew dynamic configurations\n"
2886 " forcerenew DEVICES... Trigger DHCP reconfiguration of all connected clients\n"
2887 " reconfigure DEVICES... Reconfigure interfaces\n"
2888 " reload Reload .network and .netdev files\n"
2889 " edit FILES|DEVICES... Edit network configuration files\n"
2890 " cat FILES|DEVICES... Show network configuration files\n"
2891 " mask FILES... Mask network configuration files\n"
2892 " unmask FILES... Unmask network configuration files\n"
2893 "\nOptions:\n"
2894 " -h --help Show this help\n"
2895 " --version Show package version\n"
2896 " --no-pager Do not pipe output into a pager\n"
2897 " --no-legend Do not show the headers and footers\n"
2898 " -a --all Show status for all links\n"
2899 " -s --stats Show detailed link statistics\n"
2900 " -l --full Do not ellipsize output\n"
2901 " -n --lines=INTEGER Number of journal entries to show\n"
2902 " --json=pretty|short|off\n"
2903 " Generate JSON output\n"
2904 " --no-reload Do not reload systemd-networkd or systemd-udevd\n"
2905 " after editing network config\n"
2906 " --drop-in=NAME Edit specified drop-in instead of main config file\n"
2907 " --runtime Edit runtime config files\n"
2908 "\nSee the %s for details.\n",
2909 program_invocation_short_name,
2910 ansi_highlight(),
2911 ansi_normal(),
2912 link);
2913
2914 return 0;
2915 }
2916
2917 static int parse_argv(int argc, char *argv[]) {
2918 enum {
2919 ARG_VERSION = 0x100,
2920 ARG_NO_PAGER,
2921 ARG_NO_LEGEND,
2922 ARG_JSON,
2923 ARG_NO_RELOAD,
2924 ARG_DROP_IN,
2925 ARG_RUNTIME,
2926 };
2927
2928 static const struct option options[] = {
2929 { "help", no_argument, NULL, 'h' },
2930 { "version", no_argument, NULL, ARG_VERSION },
2931 { "no-pager", no_argument, NULL, ARG_NO_PAGER },
2932 { "no-legend", no_argument, NULL, ARG_NO_LEGEND },
2933 { "all", no_argument, NULL, 'a' },
2934 { "stats", no_argument, NULL, 's' },
2935 { "full", no_argument, NULL, 'l' },
2936 { "lines", required_argument, NULL, 'n' },
2937 { "json", required_argument, NULL, ARG_JSON },
2938 { "no-reload", no_argument, NULL, ARG_NO_RELOAD },
2939 { "drop-in", required_argument, NULL, ARG_DROP_IN },
2940 { "runtime", no_argument, NULL, ARG_RUNTIME },
2941 {}
2942 };
2943
2944 int c, r;
2945
2946 assert(argc >= 0);
2947 assert(argv);
2948
2949 while ((c = getopt_long(argc, argv, "hasln:", options, NULL)) >= 0) {
2950
2951 switch (c) {
2952
2953 case 'h':
2954 return help();
2955
2956 case ARG_VERSION:
2957 return version();
2958
2959 case ARG_NO_PAGER:
2960 arg_pager_flags |= PAGER_DISABLE;
2961 break;
2962
2963 case ARG_NO_LEGEND:
2964 arg_legend = false;
2965 break;
2966
2967 case ARG_NO_RELOAD:
2968 arg_no_reload = true;
2969 break;
2970
2971 case ARG_RUNTIME:
2972 arg_runtime = true;
2973 break;
2974
2975 case ARG_DROP_IN:
2976 if (isempty(optarg))
2977 return log_error_errno(SYNTHETIC_ERRNO(EINVAL), "Empty drop-in file name.");
2978
2979 if (!endswith(optarg, ".conf")) {
2980 char *conf;
2981
2982 conf = strjoin(optarg, ".conf");
2983 if (!conf)
2984 return log_oom();
2985
2986 free_and_replace(arg_drop_in, conf);
2987 } else {
2988 r = free_and_strdup(&arg_drop_in, optarg);
2989 if (r < 0)
2990 return log_oom();
2991 }
2992
2993 if (!filename_is_valid(arg_drop_in))
2994 return log_error_errno(SYNTHETIC_ERRNO(EINVAL),
2995 "Invalid drop-in file name '%s'.", arg_drop_in);
2996
2997 break;
2998
2999 case 'a':
3000 arg_all = true;
3001 break;
3002
3003 case 's':
3004 arg_stats = true;
3005 break;
3006
3007 case 'l':
3008 arg_full = true;
3009 break;
3010
3011 case 'n':
3012 if (safe_atou(optarg, &arg_lines) < 0)
3013 return log_error_errno(SYNTHETIC_ERRNO(EINVAL),
3014 "Failed to parse lines '%s'", optarg);
3015 break;
3016
3017 case ARG_JSON:
3018 r = parse_json_argument(optarg, &arg_json_format_flags);
3019 if (r <= 0)
3020 return r;
3021 break;
3022
3023 case '?':
3024 return -EINVAL;
3025
3026 default:
3027 assert_not_reached();
3028 }
3029 }
3030
3031 return 1;
3032 }
3033
3034 static int networkctl_main(int argc, char *argv[]) {
3035 static const Verb verbs[] = {
3036 { "list", VERB_ANY, VERB_ANY, VERB_DEFAULT|VERB_ONLINE_ONLY, list_links },
3037 { "status", VERB_ANY, VERB_ANY, VERB_ONLINE_ONLY, link_status },
3038 { "lldp", VERB_ANY, VERB_ANY, 0, link_lldp_status },
3039 { "label", 1, 1, 0, list_address_labels },
3040 { "delete", 2, VERB_ANY, 0, link_delete },
3041 { "up", 2, VERB_ANY, 0, link_up_down },
3042 { "down", 2, VERB_ANY, 0, link_up_down },
3043 { "renew", 2, VERB_ANY, VERB_ONLINE_ONLY, link_renew },
3044 { "forcerenew", 2, VERB_ANY, VERB_ONLINE_ONLY, link_force_renew },
3045 { "reconfigure", 2, VERB_ANY, VERB_ONLINE_ONLY, verb_reconfigure },
3046 { "reload", 1, 1, VERB_ONLINE_ONLY, verb_reload },
3047 { "edit", 2, VERB_ANY, 0, verb_edit },
3048 { "cat", 2, VERB_ANY, 0, verb_cat },
3049 { "mask", 2, VERB_ANY, 0, verb_mask },
3050 { "unmask", 2, VERB_ANY, 0, verb_unmask },
3051 {}
3052 };
3053
3054 return dispatch_verb(argc, argv, verbs, NULL);
3055 }
3056
3057 static int run(int argc, char* argv[]) {
3058 int r;
3059
3060 log_setup();
3061
3062 sigbus_install();
3063
3064 r = parse_argv(argc, argv);
3065 if (r <= 0)
3066 return r;
3067
3068 return networkctl_main(argc, argv);
3069 }
3070
3071 DEFINE_MAIN_FUNCTION(run);
Unnamed repository; edit this file 'description' to name the repository.