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network: Use CMP() macro for comparison.
[thirdparty/systemd.git] / src / network / networkctl.c
CommitLineData
53e1b683 1/* SPDX-License-Identifier: LGPL-2.1+ */
ee8c4568 2
ee8c4568 3#include <getopt.h>
d37b7627 4#include <linux/if_addrlabel.h>
1693a943 5#include <net/if.h>
3f6fd1ba 6#include <stdbool.h>
ee8c4568 7
914d6c09 8#include "sd-device.h"
3f6fd1ba 9#include "sd-hwdb.h"
34437b4f 10#include "sd-lldp.h"
3f6fd1ba
LP		 11#include "sd-netlink.h"
12#include "sd-network.h"
ee8c4568 13
b5efdb8a 14#include "alloc-util.h"
3f6fd1ba 15#include "arphrd-list.h"
914d6c09 16#include "device-util.h"
3f6fd1ba 17#include "ether-addr-util.h"
34437b4f 18#include "fd-util.h"
81fd1dd3 19#include "hwdb-util.h"
ee8c4568 20#include "local-addresses.h"
8752c575 21#include "locale-util.h"
d37b7627 22#include "macro.h"
3f6fd1ba
LP		 23#include "netlink-util.h"
24#include "pager.h"
6bedfcbb 25#include "parse-util.h"
db73295a 26#include "socket-util.h"
34437b4f 27#include "sparse-endian.h"
d054f0a4 28#include "stdio-util.h"
8b43440b 29#include "string-table.h"
8752c575 30#include "string-util.h"
3f6fd1ba 31#include "strv.h"
2388b2f4 32#include "strxcpyx.h"
288a74cc 33#include "terminal-util.h"
3f6fd1ba
LP		 34#include "util.h"
35#include "verbs.h"
ee8c4568
LP		 36
37static bool arg_no_pager = false;
38static bool arg_legend = true;
9085f64a 39static bool arg_all = false;
ee8c4568 40
b55822c3 41static char *link_get_type_string(unsigned short iftype, sd_device *d) {
ee8c4568
LP		 42 const char *t;
43 char *p;
44
a18461bc 45 if (d) {
f119082e 46 const char *devtype = NULL;
a18461bc
JD		 47
48 (void) sd_device_get_devtype(d, &devtype);
b55822c3
JD		 49 if (!isempty(devtype))
50 return strdup(devtype);
ee8c4568
LP		 51 }
52
53 t = arphrd_to_name(iftype);
b55822c3
JD		 54 if (!t)
55 return NULL;
ee8c4568
LP		 56
57 p = strdup(t);
58 if (!p)
b55822c3 59 return NULL;
ee8c4568
LP		 60
61 ascii_strlower(p);
b55822c3 62 return p;
ee8c4568
LP		 63}
64
7e5a080a
LP		 65static void operational_state_to_color(const char *state, const char **on, const char **off) {
66 assert(on);
67 assert(off);
68
69 if (streq_ptr(state, "routable")) {
70 *on = ansi_highlight_green();
71 *off = ansi_normal();
72 } else if (streq_ptr(state, "degraded")) {
73 *on = ansi_highlight_yellow();
74 *off = ansi_normal();
75 } else
76 *on = *off = "";
77}
78
79static void setup_state_to_color(const char *state, const char **on, const char **off) {
80 assert(on);
81 assert(off);
82
83 if (streq_ptr(state, "configured")) {
84 *on = ansi_highlight_green();
85 *off = ansi_normal();
86 } else if (streq_ptr(state, "configuring")) {
87 *on = ansi_highlight_yellow();
88 *off = ansi_normal();
1cf03a4f 89 } else if (STRPTR_IN_SET(state, "failed", "linger")) {
7e5a080a
LP		 90 *on = ansi_highlight_red();
91 *off = ansi_normal();
92 } else
93 *on = *off = "";
94}
95
6d0c65ff 96typedef struct LinkInfo {
e997c4b0 97 char name[IFNAMSIZ+1];
6d0c65ff 98 int ifindex;
1c4a6088 99 unsigned short iftype;
b147503e
LP		 100 struct ether_addr mac_address;
101 uint32_t mtu;
102
103 bool has_mac_address:1;
104 bool has_mtu:1;
6d0c65ff
LP		 105} LinkInfo;
106
107static int link_info_compare(const void *a, const void *b) {
108 const LinkInfo *x = a, *y = b;
109
110 return x->ifindex - y->ifindex;
111}
112
7e5a080a 113static int decode_link(sd_netlink_message *m, LinkInfo *info) {
e997c4b0 114 const char *name;
e997c4b0 115 uint16_t type;
b147503e 116 int r;
6d0c65ff 117
e997c4b0
LP		 118 assert(m);
119 assert(info);
6d0c65ff 120
e997c4b0
LP		 121 r = sd_netlink_message_get_type(m, &type);
122 if (r < 0)
123 return r;
6d0c65ff 124
e997c4b0
LP		 125 if (type != RTM_NEWLINK)
126 return 0;
6d0c65ff 127
b147503e 128 r = sd_rtnl_message_link_get_ifindex(m, &info->ifindex);
e997c4b0
LP		 129 if (r < 0)
130 return r;
6d0c65ff 131
e997c4b0
LP		 132 r = sd_netlink_message_read_string(m, IFLA_IFNAME, &name);
133 if (r < 0)
134 return r;
6d0c65ff 135
b147503e 136 r = sd_rtnl_message_link_get_type(m, &info->iftype);
e997c4b0
LP		 137 if (r < 0)
138 return r;
6d0c65ff 139
2388b2f4 140 strscpy(info->name, sizeof info->name, name);
b147503e
LP		 141
142 info->has_mac_address =
143 sd_netlink_message_read_ether_addr(m, IFLA_ADDRESS, &info->mac_address) >= 0 &&
72e551f4 144 memcmp(&info->mac_address, &ETHER_ADDR_NULL, sizeof(struct ether_addr)) != 0;
b147503e
LP		 145
146 info->has_mtu =
147 sd_netlink_message_read_u32(m, IFLA_MTU, &info->mtu) &&
148 info->mtu > 0;
e997c4b0
LP		 149
150 return 1;
151}
152
b147503e 153static int acquire_link_info_strv(sd_netlink *rtnl, char **l, LinkInfo **ret) {
e997c4b0 154 _cleanup_free_ LinkInfo *links = NULL;
e997c4b0
LP		 155 char **i;
156 size_t c = 0;
157 int r;
158
b147503e 159 assert(rtnl);
e997c4b0
LP		 160 assert(ret);
161
162 links = new(LinkInfo, strv_length(l));
163 if (!links)
164 return log_oom();
165
e997c4b0
LP		 166 STRV_FOREACH(i, l) {
167 _cleanup_(sd_netlink_message_unrefp) sd_netlink_message *req = NULL, *reply = NULL;
168 int ifindex;
169
170 if (parse_ifindex(*i, &ifindex) >= 0)
171 r = sd_rtnl_message_new_link(rtnl, &req, RTM_GETLINK, ifindex);
172 else {
173 r = sd_rtnl_message_new_link(rtnl, &req, RTM_GETLINK, 0);
174 if (r < 0)
175 return rtnl_log_create_error(r);
176
177 r = sd_netlink_message_append_string(req, IFLA_IFNAME, *i);
178 }
179 if (r < 0)
180 return rtnl_log_create_error(r);
181
182 r = sd_netlink_call(rtnl, req, 0, &reply);
183 if (r < 0)
184 return log_error_errno(r, "Failed to request link: %m");
185
7e5a080a 186 r = decode_link(reply, links + c);
e997c4b0
LP		 187 if (r < 0)
188 return r;
189 if (r > 0)
190 c++;
191 }
192
193 qsort_safe(links, c, sizeof(LinkInfo), link_info_compare);
194
1cc6c93a 195 *ret = TAKE_PTR(links);
e997c4b0
LP		 196
197 return (int) c;
198}
199
b147503e 200static int acquire_link_info_all(sd_netlink *rtnl, LinkInfo **ret) {
4afd3348 201 _cleanup_(sd_netlink_message_unrefp) sd_netlink_message *req = NULL, *reply = NULL;
7e5a080a
LP		 202 _cleanup_free_ LinkInfo *links = NULL;
203 size_t allocated = 0, c = 0;
204 sd_netlink_message *i;
7d367b45
LP		 205 int r;
206
b147503e 207 assert(rtnl);
7d367b45 208 assert(ret);
ee8c4568 209
ee8c4568
LP		 210 r = sd_rtnl_message_new_link(rtnl, &req, RTM_GETLINK, 0);
211 if (r < 0)
212 return rtnl_log_create_error(r);
213
1c4baffc 214 r = sd_netlink_message_request_dump(req, true);
ee8c4568
LP		 215 if (r < 0)
216 return rtnl_log_create_error(r);
217
1c4baffc 218 r = sd_netlink_call(rtnl, req, 0, &reply);
f647962d
MS		 219 if (r < 0)
220 return log_error_errno(r, "Failed to enumerate links: %m");
ee8c4568 221
7e5a080a
LP		 222 for (i = reply; i; i = sd_netlink_message_next(i)) {
223 if (!GREEDY_REALLOC(links, allocated, c+1))
224 return -ENOMEM;
7d367b45 225
7e5a080a
LP		 226 r = decode_link(i, links + c);
227 if (r < 0)
228 return r;
229 if (r > 0)
230 c++;
231 }
232
233 qsort_safe(links, c, sizeof(LinkInfo), link_info_compare);
234
1cc6c93a 235 *ret = TAKE_PTR(links);
7e5a080a
LP		 236
237 return (int) c;
7d367b45 238}
ee8c4568 239
7d367b45 240static int list_links(int argc, char *argv[], void *userdata) {
b147503e 241 _cleanup_(sd_netlink_unrefp) sd_netlink *rtnl = NULL;
7d367b45 242 _cleanup_free_ LinkInfo *links = NULL;
b147503e
LP		 243 int c, i, r;
244
245 r = sd_netlink_open(&rtnl);
246 if (r < 0)
247 return log_error_errno(r, "Failed to connect to netlink: %m");
7d367b45 248
e997c4b0 249 if (argc > 1)
b147503e 250 c = acquire_link_info_strv(rtnl, argv + 1, &links);
e997c4b0 251 else
b147503e 252 c = acquire_link_info_all(rtnl, &links);
6d0c65ff 253 if (c < 0)
7d367b45
LP		 254 return c;
255
ee5324aa 256 (void) pager_open(arg_no_pager, false);
7d367b45
LP		 257
258 if (arg_legend)
259 printf("%3s %-16s %-18s %-11s %-10s\n",
260 "IDX",
261 "LINK",
262 "TYPE",
263 "OPERATIONAL",
264 "SETUP");
6d0c65ff
LP		 265
266 for (i = 0; i < c; i++) {
ab1525bc 267 _cleanup_free_ char *setup_state = NULL, *operational_state = NULL;
4afd3348 268 _cleanup_(sd_device_unrefp) sd_device *d = NULL;
d57c365b
LP		 269 const char *on_color_operational, *off_color_operational,
270 *on_color_setup, *off_color_setup;
7d6884b6 271 char devid[2 + DECIMAL_STR_MAX(int)];
ee8c4568 272 _cleanup_free_ char *t = NULL;
ee8c4568 273
4abd866d 274 (void) sd_network_link_get_operational_state(links[i].ifindex, &operational_state);
d57c365b
LP		 275 operational_state_to_color(operational_state, &on_color_operational, &off_color_operational);
276
33d5013d
LP		 277 r = sd_network_link_get_setup_state(links[i].ifindex, &setup_state);
278 if (r == -ENODATA) /* If there's no info available about this iface, it's unmanaged by networkd */
279 setup_state = strdup("unmanaged");
d57c365b 280 setup_state_to_color(setup_state, &on_color_setup, &off_color_setup);
ee8c4568 281
691d4da9
LP		 282 xsprintf(devid, "n%i", links[i].ifindex);
283 (void) sd_device_new_from_device_id(&d, devid);
ee8c4568 284
b55822c3 285 t = link_get_type_string(links[i].iftype, d);
ee8c4568 286
3e3db0ee 287 printf("%3i %-16s %-18s %s%-11s%s %s%-10s%s\n",
d57c365b
LP		 288 links[i].ifindex, links[i].name, strna(t),
289 on_color_operational, strna(operational_state), off_color_operational,
290 on_color_setup, strna(setup_state), off_color_setup);
ee8c4568
LP		 291 }
292
293 if (arg_legend)
6d0c65ff 294 printf("\n%i links listed.\n", c);
ee8c4568
LP		 295
296 return 0;
297}
298
c09da729 299/* IEEE Organizationally Unique Identifier vendor string */
b147503e 300static int ieee_oui(sd_hwdb *hwdb, const struct ether_addr *mac, char **ret) {
81fd1dd3 301 const char *description;
fbd0b64f 302 char modalias[STRLEN("OUI:XXYYXXYYXXYY") + 1], *desc;
81fd1dd3
TG		 303 int r;
304
305 assert(ret);
c09da729 306
888943fc
LP		 307 if (!hwdb)
308 return -EINVAL;
309
81fd1dd3
TG		 310 if (!mac)
311 return -EINVAL;
312
c09da729
TG		 313 /* skip commonly misused 00:00:00 (Xerox) prefix */
314 if (memcmp(mac, "\0\0\0", 3) == 0)
315 return -EINVAL;
316
d054f0a4
DM		 317 xsprintf(modalias, "OUI:" ETHER_ADDR_FORMAT_STR,
318 ETHER_ADDR_FORMAT_VAL(*mac));
c09da729 319
81fd1dd3
TG		 320 r = sd_hwdb_get(hwdb, modalias, "ID_OUI_FROM_DATABASE", &description);
321 if (r < 0)
322 return r;
c09da729 323
81fd1dd3
TG		 324 desc = strdup(description);
325 if (!desc)
326 return -ENOMEM;
c09da729 327
81fd1dd3
TG		 328 *ret = desc;
329
330 return 0;
c09da729
TG		 331}
332
69fb1176 333static int get_gateway_description(
1c4baffc 334 sd_netlink *rtnl,
81fd1dd3 335 sd_hwdb *hwdb,
69fb1176
LP		 336 int ifindex,
337 int family,
338 union in_addr_union *gateway,
339 char **gateway_description) {
4afd3348 340 _cleanup_(sd_netlink_message_unrefp) sd_netlink_message *req = NULL, *reply = NULL;
1c4baffc 341 sd_netlink_message *m;
c09da729
TG		 342 int r;
343
344 assert(rtnl);
345 assert(ifindex >= 0);
4c701096 346 assert(IN_SET(family, AF_INET, AF_INET6));
c09da729
TG		 347 assert(gateway);
348 assert(gateway_description);
349
350 r = sd_rtnl_message_new_neigh(rtnl, &req, RTM_GETNEIGH, ifindex, family);
351 if (r < 0)
352 return r;
353
1c4baffc 354 r = sd_netlink_message_request_dump(req, true);
c09da729
TG		 355 if (r < 0)
356 return r;
357
1c4baffc 358 r = sd_netlink_call(rtnl, req, 0, &reply);
c09da729
TG		 359 if (r < 0)
360 return r;
361
1c4baffc 362 for (m = reply; m; m = sd_netlink_message_next(m)) {
c09da729
TG		 363 union in_addr_union gw = {};
364 struct ether_addr mac = {};
365 uint16_t type;
366 int ifi, fam;
367
1c4baffc 368 r = sd_netlink_message_get_errno(m);
c09da729
TG		 369 if (r < 0) {
370 log_error_errno(r, "got error: %m");
371 continue;
372 }
373
1c4baffc 374 r = sd_netlink_message_get_type(m, &type);
c09da729
TG		 375 if (r < 0) {
376 log_error_errno(r, "could not get type: %m");
377 continue;
378 }
379
380 if (type != RTM_NEWNEIGH) {
381 log_error("type is not RTM_NEWNEIGH");
382 continue;
383 }
384
385 r = sd_rtnl_message_neigh_get_family(m, &fam);
386 if (r < 0) {
387 log_error_errno(r, "could not get family: %m");
388 continue;
389 }
390
391 if (fam != family) {
392 log_error("family is not correct");
393 continue;
394 }
395
396 r = sd_rtnl_message_neigh_get_ifindex(m, &ifi);
397 if (r < 0) {
144232a8 398 log_error_errno(r, "could not get ifindex: %m");
c09da729
TG		 399 continue;
400 }
401
402 if (ifindex > 0 && ifi != ifindex)
403 continue;
404
405 switch (fam) {
406 case AF_INET:
1c4baffc 407 r = sd_netlink_message_read_in_addr(m, NDA_DST, &gw.in);
c09da729
TG		 408 if (r < 0)
409 continue;
410
411 break;
412 case AF_INET6:
1c4baffc 413 r = sd_netlink_message_read_in6_addr(m, NDA_DST, &gw.in6);
c09da729
TG		 414 if (r < 0)
415 continue;
416
417 break;
418 default:
419 continue;
420 }
421
422 if (!in_addr_equal(fam, &gw, gateway))
423 continue;
424
1c4baffc 425 r = sd_netlink_message_read_ether_addr(m, NDA_LLADDR, &mac);
c09da729
TG		 426 if (r < 0)
427 continue;
428
429 r = ieee_oui(hwdb, &mac, gateway_description);
430 if (r < 0)
431 continue;
432
433 return 0;
434 }
435
436 return -ENODATA;
437}
438
69fb1176 439static int dump_gateways(
1c4baffc 440 sd_netlink *rtnl,
81fd1dd3 441 sd_hwdb *hwdb,
69fb1176
LP		 442 const char *prefix,
443 int ifindex) {
b6a3ca6d
TG		 444 _cleanup_free_ struct local_address *local = NULL;
445 int r, n, i;
c09da729 446
837f57da
LP		 447 assert(rtnl);
448 assert(prefix);
449
b6a3ca6d
TG		 450 n = local_gateways(rtnl, ifindex, AF_UNSPEC, &local);
451 if (n < 0)
452 return n;
c09da729 453
b6a3ca6d
TG		 454 for (i = 0; i < n; i++) {
455 _cleanup_free_ char *gateway = NULL, *description = NULL;
c09da729 456
b6a3ca6d 457 r = in_addr_to_string(local[i].family, &local[i].address, &gateway);
c09da729 458 if (r < 0)
b6a3ca6d 459 return r;
c09da729 460
69fb1176 461 r = get_gateway_description(rtnl, hwdb, local[i].ifindex, local[i].family, &local[i].address, &description);
c09da729 462 if (r < 0)
b6a3ca6d 463 log_debug_errno(r, "Could not get description of gateway: %m");
c09da729 464
1693a943
LP		 465 printf("%*s%s",
466 (int) strlen(prefix),
467 i == 0 ? prefix : "",
468 gateway);
469
b6a3ca6d 470 if (description)
1693a943
LP		 471 printf(" (%s)", description);
472
473 /* Show interface name for the entry if we show
474 * entries for all interfaces */
475 if (ifindex <= 0) {
476 char name[IF_NAMESIZE+1];
477
478 if (if_indextoname(local[i].ifindex, name)) {
479 fputs(" on ", stdout);
480 fputs(name, stdout);
481 } else
482 printf(" on %%%i", local[i].ifindex);
483 }
484
485 fputc('\n', stdout);
c09da729
TG		 486 }
487
488 return 0;
489}
490
69fb1176 491static int dump_addresses(
1c4baffc 492 sd_netlink *rtnl,
69fb1176
LP		 493 const char *prefix,
494 int ifindex) {
495
ee8c4568
LP		 496 _cleanup_free_ struct local_address *local = NULL;
497 int r, n, i;
498
837f57da
LP		 499 assert(rtnl);
500 assert(prefix);
501
1d050e1e 502 n = local_addresses(rtnl, ifindex, AF_UNSPEC, &local);
ee8c4568
LP		 503 if (n < 0)
504 return n;
505
506 for (i = 0; i < n; i++) {
507 _cleanup_free_ char *pretty = NULL;
508
509 r = in_addr_to_string(local[i].family, &local[i].address, &pretty);
510 if (r < 0)
511 return r;
512
1693a943 513 printf("%*s%s",
ee8c4568
LP		 514 (int) strlen(prefix),
515 i == 0 ? prefix : "",
516 pretty);
1693a943
LP		 517
518 if (ifindex <= 0) {
519 char name[IF_NAMESIZE+1];
520
521 if (if_indextoname(local[i].ifindex, name)) {
522 fputs(" on ", stdout);
523 fputs(name, stdout);
524 } else
525 printf(" on %%%i", local[i].ifindex);
526 }
527
528 fputc('\n', stdout);
ee8c4568
LP		 529 }
530
531 return 0;
532}
533
d37b7627
SS		 534static int dump_address_labels(sd_netlink *rtnl) {
535 _cleanup_(sd_netlink_message_unrefp) sd_netlink_message *req = NULL, *reply = NULL;
536 sd_netlink_message *m;
537 int r;
538
539 assert(rtnl);
540
541 r = sd_rtnl_message_new_addrlabel(rtnl, &req, RTM_GETADDRLABEL, 0, AF_INET6);
542 if (r < 0)
543 return log_error_errno(r, "Could not allocate RTM_GETADDRLABEL message: %m");
544
545 r = sd_netlink_message_request_dump(req, true);
546 if (r < 0)
547 return r;
548
549 r = sd_netlink_call(rtnl, req, 0, &reply);
550 if (r < 0)
551 return r;
552
553 printf("%10s/%s %30s\n", "Prefix", "Prefixlen", "Label");
554
555 for (m = reply; m; m = sd_netlink_message_next(m)) {
556 _cleanup_free_ char *pretty = NULL;
557 union in_addr_union prefix = {};
558 uint8_t prefixlen;
559 uint32_t label;
560
561 r = sd_netlink_message_get_errno(m);
562 if (r < 0) {
563 log_error_errno(r, "got error: %m");
564 continue;
565 }
566
567 r = sd_netlink_message_read_u32(m, IFAL_LABEL, &label);
568 if (r < 0 && r != -ENODATA) {
569 log_error_errno(r, "Could not read IFAL_LABEL, ignoring: %m");
570 continue;
571 }
572
573 r = sd_netlink_message_read_in6_addr(m, IFAL_ADDRESS, &prefix.in6);
574 if (r < 0)
575 continue;
576
577 r = in_addr_to_string(AF_INET6, &prefix, &pretty);
578 if (r < 0)
579 continue;
580
581 r = sd_rtnl_message_addrlabel_get_prefixlen(m, &prefixlen);
582 if (r < 0)
583 continue;
584
585 printf("%10s/%-5u %30u\n", pretty, prefixlen, label);
586 }
587
588 return 0;
589}
590
591static int list_address_labels(int argc, char *argv[], void *userdata) {
592 _cleanup_(sd_netlink_unrefp) sd_netlink *rtnl = NULL;
593 int r;
594
595 r = sd_netlink_open(&rtnl);
596 if (r < 0)
597 return log_error_errno(r, "Failed to connect to netlink: %m");
598
599 dump_address_labels(rtnl);
600
601 return 0;
602}
603
837f57da
LP		 604static int open_lldp_neighbors(int ifindex, FILE **ret) {
605 _cleanup_free_ char *p = NULL;
606 FILE *f;
607
608 if (asprintf(&p, "/run/systemd/netif/lldp/%i", ifindex) < 0)
609 return -ENOMEM;
610
611 f = fopen(p, "re");
612 if (!f)
613 return -errno;
614
615 *ret = f;
616 return 0;
617}
618
619static int next_lldp_neighbor(FILE *f, sd_lldp_neighbor **ret) {
620 _cleanup_free_ void *raw = NULL;
621 size_t l;
622 le64_t u;
623 int r;
624
625 assert(f);
626 assert(ret);
627
628 l = fread(&u, 1, sizeof(u), f);
629 if (l == 0 && feof(f))
630 return 0;
631 if (l != sizeof(u))
632 return -EBADMSG;
633
d23c3e4c
FB		 634 /* each LLDP packet is at most MTU size, but let's allow up to 4KiB just in case */
635 if (le64toh(u) >= 4096)
636 return -EBADMSG;
637
837f57da
LP		 638 raw = new(uint8_t, le64toh(u));
639 if (!raw)
640 return -ENOMEM;
641
642 if (fread(raw, 1, le64toh(u), f) != le64toh(u))
643 return -EBADMSG;
644
645 r = sd_lldp_neighbor_from_raw(ret, raw, le64toh(u));
646 if (r < 0)
647 return r;
648
649 return 1;
650}
651
652static int dump_lldp_neighbors(const char *prefix, int ifindex) {
653 _cleanup_fclose_ FILE *f = NULL;
654 int r, c = 0;
655
656 assert(prefix);
657 assert(ifindex > 0);
658
659 r = open_lldp_neighbors(ifindex, &f);
660 if (r < 0)
661 return r;
662
663 for (;;) {
664 const char *system_name = NULL, *port_id = NULL, *port_description = NULL;
665 _cleanup_(sd_lldp_neighbor_unrefp) sd_lldp_neighbor *n = NULL;
666
667 r = next_lldp_neighbor(f, &n);
668 if (r < 0)
669 return r;
670 if (r == 0)
671 break;
672
673 printf("%*s",
674 (int) strlen(prefix),
675 c == 0 ? prefix : "");
676
677 (void) sd_lldp_neighbor_get_system_name(n, &system_name);
678 (void) sd_lldp_neighbor_get_port_id_as_string(n, &port_id);
679 (void) sd_lldp_neighbor_get_port_description(n, &port_description);
680
681 printf("%s on port %s", strna(system_name), strna(port_id));
682
683 if (!isempty(port_description))
684 printf(" (%s)", port_description);
685
686 putchar('\n');
687
688 c++;
689 }
690
691 return c;
692}
693
b295beea
LP		 694static void dump_ifindexes(const char *prefix, const int *ifindexes) {
695 unsigned c;
696
697 assert(prefix);
698
699 if (!ifindexes || ifindexes[0] <= 0)
700 return;
701
702 for (c = 0; ifindexes[c] > 0; c++) {
703 char name[IF_NAMESIZE+1];
704
705 printf("%*s",
706 (int) strlen(prefix),
707 c == 0 ? prefix : "");
708
709 if (if_indextoname(ifindexes[c], name))
710 fputs(name, stdout);
711 else
712 printf("%i", ifindexes[c]);
713
714 fputc('\n', stdout);
715 }
716}
717
ee8c4568
LP		 718static void dump_list(const char *prefix, char **l) {
719 char **i;
720
dce83649
LP		 721 if (strv_isempty(l))
722 return;
723
ee8c4568
LP		 724 STRV_FOREACH(i, l) {
725 printf("%*s%s\n",
726 (int) strlen(prefix),
727 i == l ? prefix : "",
728 *i);
729 }
730}
731
69fb1176 732static int link_status_one(
1c4baffc 733 sd_netlink *rtnl,
81fd1dd3 734 sd_hwdb *hwdb,
b147503e
LP		 735 const LinkInfo *info) {
736
3df9bec5 737 _cleanup_strv_free_ char **dns = NULL, **ntp = NULL, **search_domains = NULL, **route_domains = NULL;
64d6c229 738 _cleanup_free_ char *setup_state = NULL, *operational_state = NULL, *tz = NULL;
4afd3348 739 _cleanup_(sd_device_unrefp) sd_device *d = NULL;
9085f64a 740 char devid[2 + DECIMAL_STR_MAX(int)];
373d9f17 741 _cleanup_free_ char *t = NULL, *network = NULL;
af5effc4 742 const char *driver = NULL, *path = NULL, *vendor = NULL, *model = NULL, *link = NULL;
d57c365b
LP		 743 const char *on_color_operational, *off_color_operational,
744 *on_color_setup, *off_color_setup;
b295beea 745 _cleanup_free_ int *carrier_bound_to = NULL, *carrier_bound_by = NULL;
b147503e 746 int r;
9085f64a
LP		 747
748 assert(rtnl);
b147503e 749 assert(info);
9085f64a 750
b147503e 751 (void) sd_network_link_get_operational_state(info->ifindex, &operational_state);
d57c365b
LP		 752 operational_state_to_color(operational_state, &on_color_operational, &off_color_operational);
753
33d5013d
LP		 754 r = sd_network_link_get_setup_state(info->ifindex, &setup_state);
755 if (r == -ENODATA) /* If there's no info available about this iface, it's unmanaged by networkd */
756 setup_state = strdup("unmanaged");
d57c365b 757 setup_state_to_color(setup_state, &on_color_setup, &off_color_setup);
9085f64a 758
b147503e
LP		 759 (void) sd_network_link_get_dns(info->ifindex, &dns);
760 (void) sd_network_link_get_search_domains(info->ifindex, &search_domains);
761 (void) sd_network_link_get_route_domains(info->ifindex, &route_domains);
762 (void) sd_network_link_get_ntp(info->ifindex, &ntp);
9085f64a 763
691d4da9 764 xsprintf(devid, "n%i", info->ifindex);
914d6c09 765
dce83649 766 (void) sd_device_new_from_device_id(&d, devid);
914d6c09 767
9085f64a 768 if (d) {
dce83649
LP		 769 (void) sd_device_get_property_value(d, "ID_NET_LINK_FILE", &link);
770 (void) sd_device_get_property_value(d, "ID_NET_DRIVER", &driver);
771 (void) sd_device_get_property_value(d, "ID_PATH", &path);
9085f64a 772
914d6c09
TG		 773 r = sd_device_get_property_value(d, "ID_VENDOR_FROM_DATABASE", &vendor);
774 if (r < 0)
dce83649 775 (void) sd_device_get_property_value(d, "ID_VENDOR", &vendor);
9085f64a 776
914d6c09
TG		 777 r = sd_device_get_property_value(d, "ID_MODEL_FROM_DATABASE", &model);
778 if (r < 0)
dce83649 779 (void) sd_device_get_property_value(d, "ID_MODEL", &model);
9085f64a
LP		 780 }
781
b55822c3 782 t = link_get_type_string(info->iftype, d);
b1acce80 783
4abd866d 784 (void) sd_network_link_get_network_file(info->ifindex, &network);
df3fb561 785
4abd866d
LP		 786 (void) sd_network_link_get_carrier_bound_to(info->ifindex, &carrier_bound_to);
787 (void) sd_network_link_get_carrier_bound_by(info->ifindex, &carrier_bound_by);
0d4ad91d 788
323b7dc9 789 printf("%s%s%s %i: %s\n", on_color_operational, special_glyph(BLACK_CIRCLE), off_color_operational, info->ifindex, info->name);
9085f64a 790
0d4ad91d
AR		 791 printf(" Link File: %s\n"
792 " Network File: %s\n"
793 " Type: %s\n"
794 " State: %s%s%s (%s%s%s)\n",
af5effc4 795 strna(link),
373d9f17 796 strna(network),
9085f64a 797 strna(t),
d57c365b
LP		 798 on_color_operational, strna(operational_state), off_color_operational,
799 on_color_setup, strna(setup_state), off_color_setup);
9085f64a
LP		 800
801 if (path)
0d4ad91d 802 printf(" Path: %s\n", path);
9085f64a 803 if (driver)
0d4ad91d 804 printf(" Driver: %s\n", driver);
9085f64a 805 if (vendor)
0d4ad91d 806 printf(" Vendor: %s\n", vendor);
9085f64a 807 if (model)
0d4ad91d 808 printf(" Model: %s\n", model);
9085f64a 809
b147503e 810 if (info->has_mac_address) {
888943fc 811 _cleanup_free_ char *description = NULL;
db73295a 812 char ea[ETHER_ADDR_TO_STRING_MAX];
888943fc 813
4abd866d 814 (void) ieee_oui(hwdb, &info->mac_address, &description);
888943fc
LP		 815
816 if (description)
b147503e 817 printf(" HW Address: %s (%s)\n", ether_addr_to_string(&info->mac_address, ea), description);
888943fc 818 else
b147503e 819 printf(" HW Address: %s\n", ether_addr_to_string(&info->mac_address, ea));
db73295a 820 }
9085f64a 821
b147503e 822 if (info->has_mtu)
4e964aa0 823 printf(" MTU: %" PRIu32 "\n", info->mtu);
9085f64a 824
4abd866d
LP		 825 (void) dump_addresses(rtnl, " Address: ", info->ifindex);
826 (void) dump_gateways(rtnl, hwdb, " Gateway: ", info->ifindex);
9085f64a 827
dce83649
LP		 828 dump_list(" DNS: ", dns);
829 dump_list(" Search Domains: ", search_domains);
830 dump_list(" Route Domains: ", route_domains);
8eb9058d 831
dce83649 832 dump_list(" NTP: ", ntp);
0d4ad91d 833
b295beea
LP		 834 dump_ifindexes("Carrier Bound To: ", carrier_bound_to);
835 dump_ifindexes("Carrier Bound By: ", carrier_bound_by);
9085f64a 836
b147503e 837 (void) sd_network_link_get_timezone(info->ifindex, &tz);
64d6c229 838 if (tz)
f5207c22 839 printf(" Time Zone: %s\n", tz);
8eb9058d 840
837f57da
LP		 841 (void) dump_lldp_neighbors(" Connected To: ", info->ifindex);
842
9085f64a
LP		 843 return 0;
844}
845
0070333f
LP		 846static int system_status(sd_netlink *rtnl, sd_hwdb *hwdb) {
847 _cleanup_free_ char *operational_state = NULL;
848 _cleanup_strv_free_ char **dns = NULL, **ntp = NULL, **search_domains = NULL, **route_domains = NULL;
849 const char *on_color_operational, *off_color_operational;
850
851 assert(rtnl);
852
4abd866d 853 (void) sd_network_get_operational_state(&operational_state);
0070333f
LP		 854 operational_state_to_color(operational_state, &on_color_operational, &off_color_operational);
855
856 printf("%s%s%s State: %s%s%s\n",
323b7dc9 857 on_color_operational, special_glyph(BLACK_CIRCLE), off_color_operational,
0070333f
LP		 858 on_color_operational, strna(operational_state), off_color_operational);
859
4abd866d
LP		 860 (void) dump_addresses(rtnl, " Address: ", 0);
861 (void) dump_gateways(rtnl, hwdb, " Gateway: ", 0);
0070333f 862
4abd866d 863 (void) sd_network_get_dns(&dns);
0070333f
LP		 864 dump_list(" DNS: ", dns);
865
4abd866d 866 (void) sd_network_get_search_domains(&search_domains);
0070333f
LP		 867 dump_list("Search Domains: ", search_domains);
868
4abd866d 869 (void) sd_network_get_route_domains(&route_domains);
0070333f
LP		 870 dump_list(" Route Domains: ", route_domains);
871
4abd866d 872 (void) sd_network_get_ntp(&ntp);
0070333f
LP		 873 dump_list(" NTP: ", ntp);
874
875 return 0;
876}
877
266b5389 878static int link_status(int argc, char *argv[], void *userdata) {
4afd3348 879 _cleanup_(sd_netlink_unrefp) sd_netlink *rtnl = NULL;
b147503e
LP		 880 _cleanup_(sd_hwdb_unrefp) sd_hwdb *hwdb = NULL;
881 _cleanup_free_ LinkInfo *links = NULL;
882 int r, c, i;
ee8c4568 883
ee5324aa 884 (void) pager_open(arg_no_pager, false);
0070333f 885
1c4baffc 886 r = sd_netlink_open(&rtnl);
f647962d
MS		 887 if (r < 0)
888 return log_error_errno(r, "Failed to connect to netlink: %m");
f7d68aa8 889
81fd1dd3
TG		 890 r = sd_hwdb_new(&hwdb);
891 if (r < 0)
892 log_debug_errno(r, "Failed to open hardware database: %m");
69fb1176 893
b147503e
LP		 894 if (arg_all)
895 c = acquire_link_info_all(rtnl, &links);
896 else if (argc <= 1)
0070333f 897 return system_status(rtnl, hwdb);
b147503e
LP		 898 else
899 c = acquire_link_info_strv(rtnl, argv + 1, &links);
900 if (c < 0)
901 return c;
ee8c4568 902
b147503e
LP		 903 for (i = 0; i < c; i++) {
904 if (i > 0)
905 fputc('\n', stdout);
ee8c4568 906
b147503e 907 link_status_one(rtnl, hwdb, links + i);
ee8c4568
LP		 908 }
909
910 return 0;
911}
912
34437b4f
LP		 913static char *lldp_capabilities_to_string(uint16_t x) {
914 static const char characters[] = {
915 'o', 'p', 'b', 'w', 'r', 't', 'd', 'a', 'c', 's', 'm',
916 };
917 char *ret;
918 unsigned i;
49699bac 919
34437b4f
LP		 920 ret = new(char, ELEMENTSOF(characters) + 1);
921 if (!ret)
49699bac
SS		 922 return NULL;
923
34437b4f
LP		 924 for (i = 0; i < ELEMENTSOF(characters); i++)
925 ret[i] = (x & (1U << i)) ? characters[i] : '.';
49699bac 926
34437b4f
LP		 927 ret[i] = 0;
928 return ret;
49699bac
SS		 929}
930
4c3160f1
ZJS		 931static void lldp_capabilities_legend(uint16_t x) {
932 unsigned w, i, cols = columns();
404d53a9 933 static const char* const table[] = {
4c3160f1
ZJS		 934 "o - Other",
935 "p - Repeater",
936 "b - Bridge",
937 "w - WLAN Access Point",
938 "r - Router",
939 "t - Telephone",
940 "d - DOCSIS cable device",
941 "a - Station",
942 "c - Customer VLAN",
943 "s - Service VLAN",
944 "m - Two-port MAC Relay (TPMR)",
945 };
946
947 if (x == 0)
948 return;
949
950 printf("\nCapability Flags:\n");
951 for (w = 0, i = 0; i < ELEMENTSOF(table); i++)
952 if (x & (1U << i) || arg_all) {
953 bool newline;
954
955 newline = w + strlen(table[i]) + (w == 0 ? 0 : 2) > cols;
956 if (newline)
957 w = 0;
958 w += printf("%s%s%s", newline ? "\n" : "", w == 0 ? "" : "; ", table[i]);
959 }
960 puts("");
961}
962
49699bac 963static int link_lldp_status(int argc, char *argv[], void *userdata) {
b147503e 964 _cleanup_(sd_netlink_unrefp) sd_netlink *rtnl = NULL;
49699bac 965 _cleanup_free_ LinkInfo *links = NULL;
b147503e 966 int i, r, c, m = 0;
4c3160f1 967 uint16_t all = 0;
b147503e
LP		 968
969 r = sd_netlink_open(&rtnl);
970 if (r < 0)
971 return log_error_errno(r, "Failed to connect to netlink: %m");
49699bac 972
e997c4b0 973 if (argc > 1)
b147503e 974 c = acquire_link_info_strv(rtnl, argv + 1, &links);
e997c4b0 975 else
b147503e 976 c = acquire_link_info_all(rtnl, &links);
49699bac 977 if (c < 0)
7d367b45
LP		 978 return c;
979
ee5324aa 980 (void) pager_open(arg_no_pager, false);
49699bac 981
19727828 982 if (arg_legend)
34437b4f
LP		 983 printf("%-16s %-17s %-16s %-11s %-17s %-16s\n",
984 "LINK",
985 "CHASSIS ID",
986 "SYSTEM NAME",
987 "CAPS",
988 "PORT ID",
989 "PORT DESCRIPTION");
49699bac 990
b147503e 991 for (i = 0; i < c; i++) {
34437b4f 992 _cleanup_fclose_ FILE *f = NULL;
49699bac 993
837f57da
LP		 994 r = open_lldp_neighbors(links[i].ifindex, &f);
995 if (r == -ENOENT)
996 continue;
997 if (r < 0) {
998 log_warning_errno(r, "Failed to open LLDP data for %i, ignoring: %m", links[i].ifindex);
34437b4f
LP		 999 continue;
1000 }
49699bac 1001
34437b4f 1002 for (;;) {
d08191a2 1003 _cleanup_free_ char *cid = NULL, *pid = NULL, *sname = NULL, *pdesc = NULL;
34437b4f
LP		 1004 const char *chassis_id = NULL, *port_id = NULL, *system_name = NULL, *port_description = NULL, *capabilities = NULL;
1005 _cleanup_(sd_lldp_neighbor_unrefp) sd_lldp_neighbor *n = NULL;
34437b4f 1006 uint16_t cc;
49699bac 1007
837f57da 1008 r = next_lldp_neighbor(f, &n);
34437b4f 1009 if (r < 0) {
837f57da 1010 log_warning_errno(r, "Failed to read neighbor data: %m");
34437b4f 1011 break;
49699bac 1012 }
837f57da
LP		 1013 if (r == 0)
1014 break;
34437b4f
LP		 1015
1016 (void) sd_lldp_neighbor_get_chassis_id_as_string(n, &chassis_id);
1017 (void) sd_lldp_neighbor_get_port_id_as_string(n, &port_id);
1018 (void) sd_lldp_neighbor_get_system_name(n, &system_name);
1019 (void) sd_lldp_neighbor_get_port_description(n, &port_description);
1020
d08191a2
LP		 1021 if (chassis_id) {
1022 cid = ellipsize(chassis_id, 17, 100);
1023 if (cid)
1024 chassis_id = cid;
1025 }
1026
1027 if (port_id) {
1028 pid = ellipsize(port_id, 17, 100);
1029 if (pid)
1030 port_id = pid;
1031 }
1032
1033 if (system_name) {
1034 sname = ellipsize(system_name, 16, 100);
1035 if (sname)
1036 system_name = sname;
1037 }
1038
1039 if (port_description) {
1040 pdesc = ellipsize(port_description, 16, 100);
1041 if (pdesc)
1042 port_description = pdesc;
1043 }
1044
4c3160f1 1045 if (sd_lldp_neighbor_get_enabled_capabilities(n, &cc) >= 0) {
34437b4f 1046 capabilities = lldp_capabilities_to_string(cc);
4c3160f1
ZJS		 1047 all |= cc;
1048 }
34437b4f
LP		 1049
1050 printf("%-16s %-17s %-16s %-11s %-17s %-16s\n",
1051 links[i].name,
1052 strna(chassis_id),
1053 strna(system_name),
1054 strna(capabilities),
1055 strna(port_id),
1056 strna(port_description));
b147503e
LP		 1057
1058 m++;
49699bac
SS		 1059 }
1060 }
1061
4c3160f1
ZJS		 1062 if (arg_legend) {
1063 lldp_capabilities_legend(all);
1064 printf("\n%i neighbors listed.\n", m);
1065 }
49699bac
SS		 1066
1067 return 0;
1068}
1069
ee8c4568
LP		 1070static void help(void) {
1071 printf("%s [OPTIONS...]\n\n"
1072 "Query and control the networking subsystem.\n\n"
1073 " -h --help Show this help\n"
9085f64a
LP		 1074 " --version Show package version\n"
1075 " --no-pager Do not pipe output into a pager\n"
1076 " --no-legend Do not show the headers and footers\n"
1077 " -a --all Show status for all links\n\n"
ee8c4568 1078 "Commands:\n"
e997c4b0 1079 " list [LINK...] List links\n"
d9000fd3 1080 " status [LINK...] Show link status\n"
837f57da 1081 " lldp [LINK...] Show LLDP neighbors\n"
d37b7627 1082 " label Show current address label entries in the kernel\n"
ee8c4568
LP		 1083 , program_invocation_short_name);
1084}
1085
1086static int parse_argv(int argc, char *argv[]) {
1087
1088 enum {
1089 ARG_VERSION = 0x100,
1090 ARG_NO_PAGER,
1091 ARG_NO_LEGEND,
1092 };
1093
1094 static const struct option options[] = {
1095 { "help", no_argument, NULL, 'h' },
1096 { "version", no_argument, NULL, ARG_VERSION },
1097 { "no-pager", no_argument, NULL, ARG_NO_PAGER },
1098 { "no-legend", no_argument, NULL, ARG_NO_LEGEND },
9085f64a 1099 { "all", no_argument, NULL, 'a' },
ee8c4568
LP		 1100 {}
1101 };
1102
1103 int c;
1104
1105 assert(argc >= 0);
1106 assert(argv);
1107
9085f64a 1108 while ((c = getopt_long(argc, argv, "ha", options, NULL)) >= 0) {
ee8c4568
LP		 1109
1110 switch (c) {
1111
1112 case 'h':
1113 help();
1114 return 0;
1115
1116 case ARG_VERSION:
3f6fd1ba 1117 return version();
ee8c4568
LP		 1118
1119 case ARG_NO_PAGER:
1120 arg_no_pager = true;
1121 break;
1122
1123 case ARG_NO_LEGEND:
1124 arg_legend = false;
1125 break;
1126
9085f64a
LP		 1127 case 'a':
1128 arg_all = true;
1129 break;
1130
ee8c4568
LP		 1131 case '?':
1132 return -EINVAL;
1133
1134 default:
1135 assert_not_reached("Unhandled option");
1136 }
1137 }
1138
1139 return 1;
1140}
1141
1142static int networkctl_main(int argc, char *argv[]) {
15c3626e
YW		 1143 static const Verb verbs[] = {
1144 { "list", VERB_ANY, VERB_ANY, VERB_DEFAULT, list_links },
1145 { "status", VERB_ANY, VERB_ANY, 0, link_status },
1146 { "lldp", VERB_ANY, VERB_ANY, 0, link_lldp_status },
1147 { "label", VERB_ANY, VERB_ANY, 0, list_address_labels },
266b5389 1148 {}
ee8c4568
LP		 1149 };
1150
266b5389 1151 return dispatch_verb(argc, argv, verbs, NULL);
ee8c4568
LP		 1152}
1153
58fb3678
LP		 1154static void warn_networkd_missing(void) {
1155
1156 if (access("/run/systemd/netif/state", F_OK) >= 0)
1157 return;
1158
1159 fprintf(stderr, "WARNING: systemd-networkd is not running, output will be incomplete.\n\n");
1160}
1161
ee8c4568
LP		 1162int main(int argc, char* argv[]) {
1163 int r;
1164
1165 log_parse_environment();
1166 log_open();
1167
1168 r = parse_argv(argc, argv);
1169 if (r <= 0)
1170 goto finish;
1171
58fb3678
LP		 1172 warn_networkd_missing();
1173
ee8c4568
LP		 1174 r = networkctl_main(argc, argv);
1175
1176finish:
1177 pager_close();
1178
1179 return r < 0 ? EXIT_FAILURE : EXIT_SUCCESS;
1180}
Unnamed repository; edit this file 'description' to name the repository.