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b26fc590 SD |
1 | /* |
2 | * ipmacsec.c "ip macsec". | |
3 | * | |
4 | * This program is free software; you can redistribute it and/or | |
5 | * modify it under the terms of the GNU General Public License | |
6 | * as published by the Free Software Foundation; either version | |
7 | * 2 of the License, or (at your option) any later version. | |
8 | * | |
9 | * Authors: Sabrina Dubroca <sd@queasysnail.net> | |
10 | */ | |
11 | ||
12 | #include <stdio.h> | |
13 | #include <stdlib.h> | |
14 | #include <string.h> | |
15 | #include <errno.h> | |
16 | #include <linux/genetlink.h> | |
17 | #include <linux/if_ether.h> | |
18 | #include <linux/if_macsec.h> | |
19 | ||
20 | #include "rt_names.h" | |
21 | #include "utils.h" | |
22 | #include "ip_common.h" | |
23 | #include "ll_map.h" | |
24 | #include "libgenl.h" | |
25 | ||
26 | static const char *values_on_off[] = { "off", "on" }; | |
27 | ||
28 | static const char *VALIDATE_STR[] = { | |
29 | [MACSEC_VALIDATE_DISABLED] = "disabled", | |
30 | [MACSEC_VALIDATE_CHECK] = "check", | |
31 | [MACSEC_VALIDATE_STRICT] = "strict", | |
32 | }; | |
33 | ||
34 | struct sci { | |
35 | __u64 sci; | |
36 | __u16 port; | |
37 | char abuf[6]; | |
38 | }; | |
39 | ||
40 | struct sa_desc { | |
41 | __u8 an; | |
42 | __u32 pn; | |
43 | __u8 key_id[MACSEC_KEYID_LEN]; | |
44 | __u32 key_len; | |
45 | __u8 key[MACSEC_MAX_KEY_LEN]; | |
46 | __u8 active; | |
47 | }; | |
48 | ||
49 | struct cipher_args { | |
50 | __u64 id; | |
51 | __u8 icv_len; | |
52 | }; | |
53 | ||
54 | struct txsc_desc { | |
55 | int ifindex; | |
56 | __u64 sci; | |
57 | __be16 port; | |
58 | struct cipher_args cipher; | |
59 | __u32 window; | |
60 | enum macsec_validation_type validate; | |
61 | __u8 encoding_sa; | |
62 | }; | |
63 | ||
64 | struct rxsc_desc { | |
65 | int ifindex; | |
66 | __u64 sci; | |
67 | __u8 active; | |
68 | }; | |
69 | ||
70 | #define MACSEC_BUFLEN 1024 | |
71 | ||
72 | ||
73 | /* netlink socket */ | |
74 | static struct rtnl_handle genl_rth; | |
75 | static int genl_family = -1; | |
76 | ||
77 | #define MACSEC_GENL_REQ(_req, _bufsiz, _cmd, _flags) \ | |
78 | GENL_REQUEST(_req, _bufsiz, genl_family, 0, MACSEC_GENL_VERSION, \ | |
79 | _cmd, _flags) | |
80 | ||
81 | ||
b26fc590 SD |
82 | static void ipmacsec_usage(void) |
83 | { | |
84 | fprintf(stderr, "Usage: ip macsec add DEV tx sa { 0..3 } [ OPTS ] key ID KEY\n"); | |
85 | fprintf(stderr, " ip macsec set DEV tx sa { 0..3 } [ OPTS ]\n"); | |
86 | fprintf(stderr, " ip macsec del DEV tx sa { 0..3 }\n"); | |
87 | fprintf(stderr, " ip macsec add DEV rx SCI [ on | off ]\n"); | |
88 | fprintf(stderr, " ip macsec set DEV rx SCI [ on | off ]\n"); | |
89 | fprintf(stderr, " ip macsec del DEV rx SCI\n"); | |
90 | fprintf(stderr, " ip macsec add DEV rx SCI sa { 0..3 } [ OPTS ] key ID KEY\n"); | |
91 | fprintf(stderr, " ip macsec set DEV rx SCI sa { 0..3 } [ OPTS ]\n"); | |
92 | fprintf(stderr, " ip macsec del DEV rx SCI sa { 0..3 }\n"); | |
93 | fprintf(stderr, " ip macsec show\n"); | |
94 | fprintf(stderr, " ip macsec show DEV\n"); | |
95 | fprintf(stderr, "where OPTS := [ pn <u32> ] [ on | off ]\n"); | |
96 | fprintf(stderr, " ID := 128-bit hex string\n"); | |
97 | fprintf(stderr, " KEY := 128-bit hex string\n"); | |
5898bd66 | 98 | fprintf(stderr, " SCI := { sci <u64> | port { 1..2^16-1 } address <lladdr> }\n"); |
b26fc590 SD |
99 | |
100 | exit(-1); | |
101 | } | |
102 | ||
103 | static int one_of(const char *msg, const char *realval, const char **list, | |
104 | size_t len, int *index) | |
105 | { | |
106 | int i; | |
107 | ||
108 | for (i = 0; i < len; i++) { | |
109 | if (matches(realval, list[i]) == 0) { | |
110 | *index = i; | |
111 | return 0; | |
112 | } | |
113 | } | |
114 | ||
115 | fprintf(stderr, "Error: argument of \"%s\" must be one of ", msg); | |
116 | for (i = 0; i < len; i++) | |
117 | fprintf(stderr, "\"%s\", ", list[i]); | |
118 | fprintf(stderr, "not \"%s\"\n", realval); | |
119 | return -1; | |
120 | } | |
121 | ||
122 | static int get_an(__u8 *val, const char *arg) | |
123 | { | |
124 | int ret = get_u8(val, arg, 0); | |
125 | ||
126 | if (ret) | |
127 | return ret; | |
128 | ||
129 | if (*val > 3) | |
130 | return -1; | |
131 | ||
132 | return 0; | |
133 | } | |
134 | ||
135 | static int get_sci(__u64 *sci, const char *arg) | |
136 | { | |
0330f49e | 137 | return get_be64(sci, arg, 16); |
b26fc590 SD |
138 | } |
139 | ||
140 | static int get_port(__be16 *port, const char *arg) | |
141 | { | |
5898bd66 | 142 | return get_be16(port, arg, 0); |
b26fc590 SD |
143 | } |
144 | ||
145 | #define _STR(a) #a | |
146 | #define STR(a) _STR(a) | |
147 | ||
148 | static void get_icvlen(__u8 *icvlen, char *arg) | |
149 | { | |
150 | int ret = get_u8(icvlen, arg, 10); | |
151 | ||
152 | if (ret) | |
153 | invarg("expected ICV length", arg); | |
154 | ||
f20f5f79 | 155 | if (*icvlen < MACSEC_MIN_ICV_LEN || *icvlen > MACSEC_STD_ICV_LEN) |
b26fc590 | 156 | invarg("ICV length must be in the range {" |
f20f5f79 | 157 | STR(MACSEC_MIN_ICV_LEN) ".." STR(MACSEC_STD_ICV_LEN) |
b26fc590 SD |
158 | "}", arg); |
159 | } | |
160 | ||
161 | static bool get_sa(int *argcp, char ***argvp, __u8 *an) | |
162 | { | |
163 | int argc = *argcp; | |
164 | char **argv = *argvp; | |
165 | int ret; | |
166 | ||
167 | if (argc <= 0 || strcmp(*argv, "sa") != 0) | |
168 | return false; | |
169 | ||
170 | NEXT_ARG(); | |
171 | ret = get_an(an, *argv); | |
172 | if (ret) | |
173 | invarg("expected an { 0..3 }", *argv); | |
174 | argc--; argv++; | |
175 | ||
176 | *argvp = argv; | |
177 | *argcp = argc; | |
178 | return true; | |
179 | } | |
180 | ||
181 | static int parse_sa_args(int *argcp, char ***argvp, struct sa_desc *sa) | |
182 | { | |
183 | int argc = *argcp; | |
184 | char **argv = *argvp; | |
185 | int ret; | |
186 | bool active_set = false; | |
187 | ||
188 | while (argc > 0) { | |
189 | if (strcmp(*argv, "pn") == 0) { | |
190 | if (sa->pn != 0) | |
191 | duparg2("pn", "pn"); | |
192 | NEXT_ARG(); | |
193 | ret = get_u32(&sa->pn, *argv, 0); | |
194 | if (ret) | |
195 | invarg("expected pn", *argv); | |
196 | if (sa->pn == 0) | |
197 | invarg("expected pn != 0", *argv); | |
198 | } else if (strcmp(*argv, "key") == 0) { | |
199 | unsigned int len; | |
200 | ||
201 | NEXT_ARG(); | |
202 | if (!hexstring_a2n(*argv, sa->key_id, MACSEC_KEYID_LEN, | |
203 | &len)) | |
204 | invarg("expected key id", *argv); | |
205 | NEXT_ARG(); | |
206 | if (!hexstring_a2n(*argv, sa->key, MACSEC_MAX_KEY_LEN, | |
207 | &sa->key_len)) | |
208 | invarg("expected key", *argv); | |
209 | } else if (strcmp(*argv, "on") == 0) { | |
210 | if (active_set) | |
211 | duparg2("on/off", "on"); | |
212 | sa->active = true; | |
213 | active_set = true; | |
214 | } else if (strcmp(*argv, "off") == 0) { | |
215 | if (active_set) | |
216 | duparg2("on/off", "off"); | |
217 | sa->active = false; | |
218 | active_set = true; | |
219 | } else { | |
220 | fprintf(stderr, "macsec: unknown command \"%s\"?\n", | |
221 | *argv); | |
222 | ipmacsec_usage(); | |
223 | } | |
224 | ||
225 | argv++; argc--; | |
226 | } | |
227 | ||
228 | *argvp = argv; | |
229 | *argcp = argc; | |
230 | return 0; | |
231 | } | |
232 | ||
233 | static __u64 make_sci(char *addr, __be16 port) | |
234 | { | |
235 | __u64 sci; | |
236 | ||
237 | memcpy(&sci, addr, ETH_ALEN); | |
238 | memcpy(((char *)&sci) + ETH_ALEN, &port, sizeof(port)); | |
239 | ||
240 | return sci; | |
241 | } | |
242 | ||
243 | static bool sci_complete(bool sci, bool port, bool addr, bool port_only) | |
244 | { | |
245 | return sci || (port && (addr || port_only)); | |
246 | } | |
247 | ||
248 | static int get_sci_portaddr(struct sci *sci, int *argcp, char ***argvp, | |
249 | bool port_only, bool optional) | |
250 | { | |
251 | int argc = *argcp; | |
252 | char **argv = *argvp; | |
253 | int ret; | |
254 | bool p = false, a = false, s = false; | |
255 | ||
256 | while (argc > 0) { | |
257 | if (strcmp(*argv, "sci") == 0) { | |
258 | if (p) | |
259 | invarg("expected address", *argv); | |
260 | if (a) | |
261 | invarg("expected port", *argv); | |
262 | NEXT_ARG(); | |
263 | ret = get_sci(&sci->sci, *argv); | |
264 | if (ret) | |
265 | invarg("expected sci", *argv); | |
266 | s = true; | |
267 | } else if (strcmp(*argv, "port") == 0) { | |
268 | NEXT_ARG(); | |
269 | ret = get_port(&sci->port, *argv); | |
270 | if (ret) | |
271 | invarg("expected port", *argv); | |
272 | if (sci->port == 0) | |
273 | invarg("expected port != 0", *argv); | |
274 | p = true; | |
275 | } else if (strcmp(*argv, "address") == 0) { | |
276 | NEXT_ARG(); | |
277 | ret = ll_addr_a2n(sci->abuf, sizeof(sci->abuf), *argv); | |
278 | if (ret < 0) | |
279 | invarg("expected lladdr", *argv); | |
280 | a = true; | |
281 | } else if (optional) { | |
282 | break; | |
283 | } else { | |
284 | invarg("expected sci, port, or address", *argv); | |
285 | } | |
286 | ||
287 | argv++; argc--; | |
288 | ||
289 | if (sci_complete(s, p, a, port_only)) | |
290 | break; | |
291 | } | |
292 | ||
293 | if (!optional && !sci_complete(s, p, a, port_only)) | |
294 | return -1; | |
295 | ||
296 | if (p && a) | |
297 | sci->sci = make_sci(sci->abuf, sci->port); | |
298 | ||
299 | *argvp = argv; | |
300 | *argcp = argc; | |
301 | ||
302 | return p || a || s; | |
303 | } | |
304 | ||
305 | static bool parse_rxsci(int *argcp, char ***argvp, struct rxsc_desc *rxsc, | |
306 | struct sa_desc *rxsa) | |
307 | { | |
308 | struct sci sci = { 0 }; | |
309 | ||
310 | if (*argcp == 0 || | |
311 | get_sci_portaddr(&sci, argcp, argvp, false, false) < 0) { | |
312 | fprintf(stderr, "expected sci\n"); | |
313 | ipmacsec_usage(); | |
314 | } | |
315 | ||
316 | rxsc->sci = sci.sci; | |
317 | ||
318 | return get_sa(argcp, argvp, &rxsa->an); | |
319 | } | |
320 | ||
321 | static int parse_rxsci_args(int *argcp, char ***argvp, struct rxsc_desc *rxsc) | |
322 | { | |
323 | int argc = *argcp; | |
324 | char **argv = *argvp; | |
325 | bool active_set = false; | |
326 | ||
327 | while (argc > 0) { | |
328 | if (strcmp(*argv, "on") == 0) { | |
329 | if (active_set) | |
330 | duparg2("on/off", "on"); | |
331 | rxsc->active = true; | |
332 | active_set = true; | |
333 | } else if (strcmp(*argv, "off") == 0) { | |
334 | if (active_set) | |
335 | duparg2("on/off", "off"); | |
336 | rxsc->active = false; | |
337 | active_set = true; | |
338 | } else { | |
339 | fprintf(stderr, "macsec: unknown command \"%s\"?\n", | |
340 | *argv); | |
341 | ipmacsec_usage(); | |
342 | } | |
343 | ||
344 | argv++; argc--; | |
345 | } | |
346 | ||
347 | *argvp = argv; | |
348 | *argcp = argc; | |
349 | return 0; | |
350 | } | |
351 | ||
352 | enum cmd { | |
353 | CMD_ADD, | |
354 | CMD_DEL, | |
355 | CMD_UPD, | |
356 | __CMD_MAX | |
357 | }; | |
358 | ||
359 | static const enum macsec_nl_commands macsec_commands[__CMD_MAX][2][2] = { | |
360 | [CMD_ADD] = { | |
361 | [0] = {-1, MACSEC_CMD_ADD_RXSC}, | |
362 | [1] = {MACSEC_CMD_ADD_TXSA, MACSEC_CMD_ADD_RXSA}, | |
363 | }, | |
364 | [CMD_UPD] = { | |
365 | [0] = {-1, MACSEC_CMD_UPD_RXSC}, | |
366 | [1] = {MACSEC_CMD_UPD_TXSA, MACSEC_CMD_UPD_RXSA}, | |
367 | }, | |
368 | [CMD_DEL] = { | |
369 | [0] = {-1, MACSEC_CMD_DEL_RXSC}, | |
370 | [1] = {MACSEC_CMD_DEL_TXSA, MACSEC_CMD_DEL_RXSA}, | |
371 | }, | |
372 | }; | |
373 | ||
374 | static int do_modify_nl(enum cmd c, enum macsec_nl_commands cmd, int ifindex, | |
375 | struct rxsc_desc *rxsc, struct sa_desc *sa) | |
376 | { | |
377 | struct rtattr *attr_sa; | |
378 | ||
379 | MACSEC_GENL_REQ(req, MACSEC_BUFLEN, cmd, NLM_F_REQUEST); | |
380 | ||
381 | addattr32(&req.n, MACSEC_BUFLEN, MACSEC_ATTR_IFINDEX, ifindex); | |
382 | if (rxsc) { | |
383 | struct rtattr *attr_rxsc; | |
384 | ||
385 | attr_rxsc = addattr_nest(&req.n, MACSEC_BUFLEN, | |
386 | MACSEC_ATTR_RXSC_CONFIG); | |
387 | addattr64(&req.n, MACSEC_BUFLEN, | |
388 | MACSEC_RXSC_ATTR_SCI, rxsc->sci); | |
389 | if (c != CMD_DEL && rxsc->active != 0xff) | |
390 | addattr8(&req.n, MACSEC_BUFLEN, | |
391 | MACSEC_RXSC_ATTR_ACTIVE, rxsc->active); | |
392 | ||
393 | addattr_nest_end(&req.n, attr_rxsc); | |
394 | } | |
395 | ||
396 | if (sa->an == 0xff) | |
397 | goto talk; | |
398 | ||
399 | attr_sa = addattr_nest(&req.n, MACSEC_BUFLEN, MACSEC_ATTR_SA_CONFIG); | |
400 | ||
401 | addattr8(&req.n, MACSEC_BUFLEN, MACSEC_SA_ATTR_AN, sa->an); | |
402 | ||
403 | if (c != CMD_DEL) { | |
404 | if (sa->pn) | |
405 | addattr32(&req.n, MACSEC_BUFLEN, MACSEC_SA_ATTR_PN, | |
406 | sa->pn); | |
407 | ||
408 | if (sa->key_len) { | |
409 | addattr_l(&req.n, MACSEC_BUFLEN, MACSEC_SA_ATTR_KEYID, | |
410 | sa->key_id, MACSEC_KEYID_LEN); | |
411 | addattr_l(&req.n, MACSEC_BUFLEN, MACSEC_SA_ATTR_KEY, | |
412 | sa->key, sa->key_len); | |
413 | } | |
414 | ||
415 | if (sa->active != 0xff) { | |
416 | addattr8(&req.n, MACSEC_BUFLEN, | |
417 | MACSEC_SA_ATTR_ACTIVE, sa->active); | |
418 | } | |
419 | } | |
420 | ||
421 | addattr_nest_end(&req.n, attr_sa); | |
422 | ||
423 | talk: | |
86bf43c7 | 424 | if (rtnl_talk(&genl_rth, &req.n, NULL) < 0) |
b26fc590 SD |
425 | return -2; |
426 | ||
427 | return 0; | |
428 | } | |
429 | ||
430 | static bool check_sa_args(enum cmd c, struct sa_desc *sa) | |
431 | { | |
432 | if (c == CMD_ADD) { | |
433 | if (!sa->key_len) { | |
434 | fprintf(stderr, "cannot create SA without key\n"); | |
435 | return -1; | |
436 | } | |
437 | ||
438 | if (sa->pn == 0) { | |
439 | fprintf(stderr, "must specify a packet number != 0\n"); | |
440 | return -1; | |
441 | } | |
442 | } else if (c == CMD_UPD) { | |
443 | if (sa->key_len) { | |
444 | fprintf(stderr, "cannot change key on SA\n"); | |
445 | return -1; | |
446 | } | |
447 | } | |
448 | ||
449 | return 0; | |
450 | } | |
451 | ||
452 | static int do_modify_txsa(enum cmd c, int argc, char **argv, int ifindex) | |
453 | { | |
454 | struct sa_desc txsa = {0}; | |
455 | enum macsec_nl_commands cmd; | |
456 | ||
457 | txsa.an = 0xff; | |
458 | txsa.active = 0xff; | |
459 | ||
460 | if (argc == 0 || !get_sa(&argc, &argv, &txsa.an)) | |
461 | ipmacsec_usage(); | |
462 | ||
463 | if (c == CMD_DEL) | |
464 | goto modify; | |
465 | ||
466 | if (parse_sa_args(&argc, &argv, &txsa)) | |
467 | return -1; | |
468 | ||
469 | if (check_sa_args(c, &txsa)) | |
470 | return -1; | |
471 | ||
472 | modify: | |
473 | cmd = macsec_commands[c][1][0]; | |
474 | return do_modify_nl(c, cmd, ifindex, NULL, &txsa); | |
475 | } | |
476 | ||
477 | static int do_modify_rxsci(enum cmd c, int argc, char **argv, int ifindex) | |
478 | { | |
479 | struct rxsc_desc rxsc = {0}; | |
480 | struct sa_desc rxsa = {0}; | |
481 | bool sa_set; | |
482 | enum macsec_nl_commands cmd; | |
483 | ||
484 | rxsc.ifindex = ifindex; | |
485 | rxsc.active = 0xff; | |
486 | rxsa.an = 0xff; | |
487 | rxsa.active = 0xff; | |
488 | ||
489 | sa_set = parse_rxsci(&argc, &argv, &rxsc, &rxsa); | |
490 | ||
491 | if (c == CMD_DEL) | |
492 | goto modify; | |
493 | ||
494 | if (sa_set && (parse_sa_args(&argc, &argv, &rxsa) || | |
495 | check_sa_args(c, &rxsa))) | |
496 | return -1; | |
497 | if (!sa_set && parse_rxsci_args(&argc, &argv, &rxsc)) | |
498 | return -1; | |
499 | ||
500 | modify: | |
501 | cmd = macsec_commands[c][sa_set][1]; | |
502 | return do_modify_nl(c, cmd, rxsc.ifindex, &rxsc, &rxsa); | |
503 | } | |
504 | ||
505 | static int do_modify(enum cmd c, int argc, char **argv) | |
506 | { | |
507 | int ifindex; | |
508 | ||
509 | if (argc == 0) | |
510 | ipmacsec_usage(); | |
511 | ||
512 | ifindex = ll_name_to_index(*argv); | |
513 | if (!ifindex) { | |
514 | fprintf(stderr, "Device \"%s\" does not exist.\n", *argv); | |
515 | return -1; | |
516 | } | |
517 | argc--; argv++; | |
518 | ||
519 | if (argc == 0) | |
520 | ipmacsec_usage(); | |
521 | ||
522 | if (strcmp(*argv, "tx") == 0) | |
523 | return do_modify_txsa(c, argc-1, argv+1, ifindex); | |
524 | if (strcmp(*argv, "rx") == 0) | |
525 | return do_modify_rxsci(c, argc-1, argv+1, ifindex); | |
526 | ||
527 | ipmacsec_usage(); | |
528 | return -1; | |
529 | } | |
530 | ||
531 | /* dump/show */ | |
532 | static struct { | |
533 | int ifindex; | |
534 | __u64 sci; | |
535 | } filter; | |
536 | ||
537 | static int validate_dump(struct rtattr **attrs) | |
538 | { | |
539 | return attrs[MACSEC_ATTR_IFINDEX] && attrs[MACSEC_ATTR_SECY] && | |
540 | attrs[MACSEC_ATTR_TXSA_LIST] && attrs[MACSEC_ATTR_RXSC_LIST] && | |
541 | attrs[MACSEC_ATTR_TXSC_STATS] && attrs[MACSEC_ATTR_SECY_STATS]; | |
542 | ||
543 | } | |
544 | ||
545 | static int validate_secy_dump(struct rtattr **attrs) | |
546 | { | |
547 | return attrs[MACSEC_SECY_ATTR_SCI] && | |
548 | attrs[MACSEC_SECY_ATTR_ENCODING_SA] && | |
549 | attrs[MACSEC_SECY_ATTR_CIPHER_SUITE] && | |
550 | attrs[MACSEC_SECY_ATTR_ICV_LEN] && | |
551 | attrs[MACSEC_SECY_ATTR_PROTECT] && | |
552 | attrs[MACSEC_SECY_ATTR_REPLAY] && | |
553 | attrs[MACSEC_SECY_ATTR_OPER] && | |
554 | attrs[MACSEC_SECY_ATTR_VALIDATE] && | |
555 | attrs[MACSEC_SECY_ATTR_ENCRYPT] && | |
556 | attrs[MACSEC_SECY_ATTR_INC_SCI] && | |
557 | attrs[MACSEC_SECY_ATTR_ES] && | |
558 | attrs[MACSEC_SECY_ATTR_SCB]; | |
559 | } | |
560 | ||
561 | static void print_flag(FILE *f, struct rtattr *attrs[], const char *desc, | |
562 | int field) | |
563 | { | |
c3398346 JF |
564 | if (attrs[field]) { |
565 | const char *v = values_on_off[!!rta_getattr_u8(attrs[field])]; | |
566 | ||
567 | if (is_json_context()) | |
568 | print_string(PRINT_JSON, desc, NULL, v); | |
569 | else | |
570 | fprintf(f, "%s %s ", desc, v); | |
571 | } | |
b26fc590 SD |
572 | } |
573 | ||
574 | #define DEFAULT_CIPHER_NAME "GCM-AES-128" | |
575 | ||
576 | static const char *cs_id_to_name(__u64 cid) | |
577 | { | |
578 | switch (cid) { | |
579 | case MACSEC_DEFAULT_CIPHER_ID: | |
580 | case MACSEC_DEFAULT_CIPHER_ALT: | |
581 | return DEFAULT_CIPHER_NAME; | |
582 | default: | |
583 | return "(unknown)"; | |
584 | } | |
585 | } | |
586 | ||
587 | static void print_cipher_suite(const char *prefix, __u64 cid, __u8 icv_len) | |
588 | { | |
589 | printf("%scipher suite: %s, using ICV length %d\n", prefix, | |
590 | cs_id_to_name(cid), icv_len); | |
591 | } | |
592 | ||
593 | static void print_attrs(const char *prefix, struct rtattr *attrs[]) | |
594 | { | |
595 | print_flag(stdout, attrs, "protect", MACSEC_SECY_ATTR_PROTECT); | |
596 | ||
597 | if (attrs[MACSEC_SECY_ATTR_VALIDATE]) { | |
598 | __u8 val = rta_getattr_u8(attrs[MACSEC_SECY_ATTR_VALIDATE]); | |
599 | ||
600 | printf("validate %s ", VALIDATE_STR[val]); | |
601 | } | |
602 | ||
603 | print_flag(stdout, attrs, "sc", MACSEC_RXSC_ATTR_ACTIVE); | |
604 | print_flag(stdout, attrs, "sa", MACSEC_SA_ATTR_ACTIVE); | |
605 | print_flag(stdout, attrs, "encrypt", MACSEC_SECY_ATTR_ENCRYPT); | |
606 | print_flag(stdout, attrs, "send_sci", MACSEC_SECY_ATTR_INC_SCI); | |
607 | print_flag(stdout, attrs, "end_station", MACSEC_SECY_ATTR_ES); | |
608 | print_flag(stdout, attrs, "scb", MACSEC_SECY_ATTR_SCB); | |
609 | ||
610 | print_flag(stdout, attrs, "replay", MACSEC_SECY_ATTR_REPLAY); | |
611 | if (attrs[MACSEC_SECY_ATTR_WINDOW]) { | |
612 | printf("window %d ", | |
613 | rta_getattr_u32(attrs[MACSEC_SECY_ATTR_WINDOW])); | |
614 | } | |
615 | ||
616 | if (attrs[MACSEC_SECY_ATTR_CIPHER_SUITE] && | |
617 | attrs[MACSEC_SECY_ATTR_ICV_LEN]) { | |
618 | printf("\n"); | |
619 | print_cipher_suite(prefix, | |
620 | rta_getattr_u64(attrs[MACSEC_SECY_ATTR_CIPHER_SUITE]), | |
621 | rta_getattr_u8(attrs[MACSEC_SECY_ATTR_ICV_LEN])); | |
622 | } | |
623 | ||
624 | } | |
625 | ||
626 | static void print_one_stat(const char **names, struct rtattr **attr, int idx, | |
627 | bool long_stat) | |
628 | { | |
629 | int pad = strlen(names[idx]) + 1; | |
630 | ||
631 | if (attr[idx]) { | |
632 | if (long_stat) | |
633 | printf("%*llu", pad, rta_getattr_u64(attr[idx])); | |
634 | else | |
635 | printf("%*u", pad, rta_getattr_u32(attr[idx])); | |
636 | } else { | |
637 | printf("%*c", pad, '-'); | |
638 | } | |
639 | } | |
640 | ||
641 | static const char *txsc_stats_names[NUM_MACSEC_TXSC_STATS_ATTR] = { | |
3a4df039 DH |
642 | [MACSEC_TXSC_STATS_ATTR_OUT_PKTS_PROTECTED] = "OutPktsProtected", |
643 | [MACSEC_TXSC_STATS_ATTR_OUT_PKTS_ENCRYPTED] = "OutPktsEncrypted", | |
644 | [MACSEC_TXSC_STATS_ATTR_OUT_OCTETS_PROTECTED] = "OutOctetsProtected", | |
645 | [MACSEC_TXSC_STATS_ATTR_OUT_OCTETS_ENCRYPTED] = "OutOctetsEncrypted", | |
b26fc590 SD |
646 | }; |
647 | ||
648 | static void print_txsc_stats(const char *prefix, struct rtattr *attr) | |
649 | { | |
650 | struct rtattr *stats[MACSEC_TXSC_STATS_ATTR_MAX + 1]; | |
651 | int i; | |
652 | ||
653 | if (!attr || show_stats == 0) | |
654 | return; | |
655 | ||
656 | parse_rtattr_nested(stats, MACSEC_TXSC_STATS_ATTR_MAX + 1, attr); | |
657 | printf("%sstats:", prefix); | |
658 | ||
659 | for (i = 1; i < NUM_MACSEC_TXSC_STATS_ATTR; i++) { | |
660 | if (!txsc_stats_names[i]) | |
661 | continue; | |
662 | printf(" %s", txsc_stats_names[i]); | |
663 | } | |
664 | ||
665 | printf("\n%s ", prefix); | |
666 | ||
667 | for (i = 1; i < NUM_MACSEC_TXSC_STATS_ATTR; i++) { | |
668 | if (!txsc_stats_names[i]) | |
669 | continue; | |
670 | print_one_stat(txsc_stats_names, stats, i, true); | |
671 | } | |
672 | ||
673 | printf("\n"); | |
674 | } | |
675 | ||
676 | static const char *secy_stats_names[NUM_MACSEC_SECY_STATS_ATTR] = { | |
677 | [MACSEC_SECY_STATS_ATTR_OUT_PKTS_UNTAGGED] = "OutPktsUntagged", | |
678 | [MACSEC_SECY_STATS_ATTR_IN_PKTS_UNTAGGED] = "InPktsUntagged", | |
679 | [MACSEC_SECY_STATS_ATTR_OUT_PKTS_TOO_LONG] = "OutPktsTooLong", | |
680 | [MACSEC_SECY_STATS_ATTR_IN_PKTS_NO_TAG] = "InPktsNoTag", | |
681 | [MACSEC_SECY_STATS_ATTR_IN_PKTS_BAD_TAG] = "InPktsBadTag", | |
682 | [MACSEC_SECY_STATS_ATTR_IN_PKTS_UNKNOWN_SCI] = "InPktsUnknownSCI", | |
683 | [MACSEC_SECY_STATS_ATTR_IN_PKTS_NO_SCI] = "InPktsNoSCI", | |
684 | [MACSEC_SECY_STATS_ATTR_IN_PKTS_OVERRUN] = "InPktsOverrun", | |
685 | }; | |
686 | ||
687 | static void print_secy_stats(const char *prefix, struct rtattr *attr) | |
688 | { | |
689 | struct rtattr *stats[MACSEC_SECY_STATS_ATTR_MAX + 1]; | |
690 | int i; | |
691 | ||
692 | if (!attr || show_stats == 0) | |
693 | return; | |
694 | ||
695 | parse_rtattr_nested(stats, MACSEC_SECY_STATS_ATTR_MAX + 1, attr); | |
696 | printf("%sstats:", prefix); | |
697 | ||
698 | for (i = 1; i < NUM_MACSEC_SECY_STATS_ATTR; i++) { | |
699 | if (!secy_stats_names[i]) | |
700 | continue; | |
701 | printf(" %s", secy_stats_names[i]); | |
702 | } | |
703 | ||
704 | printf("\n%s ", prefix); | |
705 | ||
706 | for (i = 1; i < NUM_MACSEC_SECY_STATS_ATTR; i++) { | |
707 | if (!secy_stats_names[i]) | |
708 | continue; | |
709 | print_one_stat(secy_stats_names, stats, i, true); | |
710 | } | |
711 | ||
712 | printf("\n"); | |
713 | } | |
714 | ||
715 | static const char *rxsa_stats_names[NUM_MACSEC_SA_STATS_ATTR] = { | |
716 | [MACSEC_SA_STATS_ATTR_IN_PKTS_OK] = "InPktsOK", | |
717 | [MACSEC_SA_STATS_ATTR_IN_PKTS_INVALID] = "InPktsInvalid", | |
718 | [MACSEC_SA_STATS_ATTR_IN_PKTS_NOT_VALID] = "InPktsNotValid", | |
719 | [MACSEC_SA_STATS_ATTR_IN_PKTS_NOT_USING_SA] = "InPktsNotUsingSA", | |
720 | [MACSEC_SA_STATS_ATTR_IN_PKTS_UNUSED_SA] = "InPktsUnusedSA", | |
721 | }; | |
722 | ||
723 | static void print_rxsa_stats(const char *prefix, struct rtattr *attr) | |
724 | { | |
725 | struct rtattr *stats[MACSEC_SA_STATS_ATTR_MAX + 1]; | |
726 | int i; | |
727 | ||
728 | if (!attr || show_stats == 0) | |
729 | return; | |
730 | ||
731 | parse_rtattr_nested(stats, MACSEC_SA_STATS_ATTR_MAX + 1, attr); | |
732 | printf("%s%s ", prefix, prefix); | |
733 | ||
734 | for (i = 1; i < NUM_MACSEC_SA_STATS_ATTR; i++) { | |
735 | if (!rxsa_stats_names[i]) | |
736 | continue; | |
737 | printf(" %s", rxsa_stats_names[i]); | |
738 | } | |
739 | ||
740 | printf("\n%s%s ", prefix, prefix); | |
741 | ||
742 | for (i = 1; i < NUM_MACSEC_SA_STATS_ATTR; i++) { | |
743 | if (!rxsa_stats_names[i]) | |
744 | continue; | |
745 | print_one_stat(rxsa_stats_names, stats, i, false); | |
746 | } | |
747 | ||
748 | printf("\n"); | |
749 | } | |
750 | ||
751 | static const char *txsa_stats_names[NUM_MACSEC_SA_STATS_ATTR] = { | |
752 | [MACSEC_SA_STATS_ATTR_OUT_PKTS_PROTECTED] = "OutPktsProtected", | |
753 | [MACSEC_SA_STATS_ATTR_OUT_PKTS_ENCRYPTED] = "OutPktsEncrypted", | |
754 | }; | |
755 | ||
756 | static void print_txsa_stats(const char *prefix, struct rtattr *attr) | |
757 | { | |
758 | struct rtattr *stats[MACSEC_SA_STATS_ATTR_MAX + 1]; | |
759 | ||
760 | if (!attr || show_stats == 0) | |
761 | return; | |
762 | ||
763 | parse_rtattr_nested(stats, MACSEC_SA_STATS_ATTR_MAX + 1, attr); | |
764 | printf("%s%s %s %s\n", prefix, prefix, | |
765 | txsa_stats_names[MACSEC_SA_STATS_ATTR_OUT_PKTS_PROTECTED], | |
766 | txsa_stats_names[MACSEC_SA_STATS_ATTR_OUT_PKTS_ENCRYPTED]); | |
767 | printf("%s%s ", prefix, prefix); | |
768 | ||
769 | print_one_stat(txsa_stats_names, stats, | |
770 | MACSEC_SA_STATS_ATTR_OUT_PKTS_PROTECTED, false); | |
771 | print_one_stat(txsa_stats_names, stats, | |
772 | MACSEC_SA_STATS_ATTR_OUT_PKTS_ENCRYPTED, false); | |
773 | printf("\n"); | |
774 | } | |
775 | ||
776 | static void print_tx_sc(const char *prefix, __u64 sci, __u8 encoding_sa, | |
777 | struct rtattr *txsc_stats, struct rtattr *secy_stats, | |
778 | struct rtattr *sa) | |
779 | { | |
780 | struct rtattr *sa_attr[MACSEC_SA_ATTR_MAX + 1]; | |
781 | struct rtattr *a; | |
782 | int rem; | |
783 | ||
0330f49e | 784 | printf("%sTXSC: %016llx on SA %d\n", prefix, ntohll(sci), encoding_sa); |
b26fc590 SD |
785 | print_secy_stats(prefix, secy_stats); |
786 | print_txsc_stats(prefix, txsc_stats); | |
787 | ||
788 | rem = RTA_PAYLOAD(sa); | |
789 | for (a = RTA_DATA(sa); RTA_OK(a, rem); a = RTA_NEXT(a, rem)) { | |
790 | SPRINT_BUF(keyid); | |
791 | bool state; | |
792 | ||
793 | parse_rtattr_nested(sa_attr, MACSEC_SA_ATTR_MAX + 1, a); | |
794 | state = rta_getattr_u8(sa_attr[MACSEC_SA_ATTR_ACTIVE]); | |
795 | printf("%s%s%d: PN %u, state %s, key %s\n", prefix, prefix, | |
796 | rta_getattr_u8(sa_attr[MACSEC_SA_ATTR_AN]), | |
797 | rta_getattr_u32(sa_attr[MACSEC_SA_ATTR_PN]), | |
798 | values_on_off[state], | |
799 | hexstring_n2a(RTA_DATA(sa_attr[MACSEC_SA_ATTR_KEYID]), | |
800 | RTA_PAYLOAD(sa_attr[MACSEC_SA_ATTR_KEYID]), | |
801 | keyid, sizeof(keyid))); | |
802 | print_txsa_stats(prefix, sa_attr[MACSEC_SA_ATTR_STATS]); | |
803 | } | |
804 | } | |
805 | ||
806 | static const char *rxsc_stats_names[NUM_MACSEC_RXSC_STATS_ATTR] = { | |
807 | [MACSEC_RXSC_STATS_ATTR_IN_OCTETS_VALIDATED] = "InOctetsValidated", | |
808 | [MACSEC_RXSC_STATS_ATTR_IN_OCTETS_DECRYPTED] = "InOctetsDecrypted", | |
809 | [MACSEC_RXSC_STATS_ATTR_IN_PKTS_UNCHECKED] = "InPktsUnchecked", | |
810 | [MACSEC_RXSC_STATS_ATTR_IN_PKTS_DELAYED] = "InPktsDelayed", | |
811 | [MACSEC_RXSC_STATS_ATTR_IN_PKTS_OK] = "InPktsOK", | |
812 | [MACSEC_RXSC_STATS_ATTR_IN_PKTS_INVALID] = "InPktsInvalid", | |
813 | [MACSEC_RXSC_STATS_ATTR_IN_PKTS_LATE] = "InPktsLate", | |
814 | [MACSEC_RXSC_STATS_ATTR_IN_PKTS_NOT_VALID] = "InPktsNotValid", | |
815 | [MACSEC_RXSC_STATS_ATTR_IN_PKTS_NOT_USING_SA] = "InPktsNotUsingSA", | |
816 | [MACSEC_RXSC_STATS_ATTR_IN_PKTS_UNUSED_SA] = "InPktsUnusedSA", | |
817 | }; | |
818 | ||
819 | static void print_rxsc_stats(const char *prefix, struct rtattr *attr) | |
820 | { | |
821 | struct rtattr *stats[MACSEC_RXSC_STATS_ATTR_MAX + 1]; | |
822 | int i; | |
823 | ||
824 | if (!attr || show_stats == 0) | |
825 | return; | |
826 | ||
827 | parse_rtattr_nested(stats, MACSEC_RXSC_STATS_ATTR_MAX + 1, attr); | |
828 | printf("%sstats:", prefix); | |
829 | for (i = 1; i < NUM_MACSEC_RXSC_STATS_ATTR; i++) { | |
830 | if (!rxsc_stats_names[i]) | |
831 | continue; | |
832 | printf(" %s", rxsc_stats_names[i]); | |
833 | } | |
834 | ||
835 | printf("\n%s ", prefix); | |
836 | ||
837 | for (i = 1; i < NUM_MACSEC_RXSC_STATS_ATTR; i++) { | |
838 | if (!rxsc_stats_names[i]) | |
839 | continue; | |
840 | print_one_stat(rxsc_stats_names, stats, i, true); | |
841 | } | |
842 | ||
843 | printf("\n"); | |
844 | } | |
845 | ||
846 | static void print_rx_sc(const char *prefix, __u64 sci, __u8 active, | |
847 | struct rtattr *rxsc_stats, struct rtattr *sa) | |
848 | { | |
849 | struct rtattr *sa_attr[MACSEC_SA_ATTR_MAX + 1]; | |
850 | struct rtattr *a; | |
851 | int rem; | |
852 | ||
0330f49e | 853 | printf("%sRXSC: %016llx, state %s\n", prefix, ntohll(sci), |
b26fc590 SD |
854 | values_on_off[!!active]); |
855 | print_rxsc_stats(prefix, rxsc_stats); | |
856 | ||
857 | rem = RTA_PAYLOAD(sa); | |
858 | for (a = RTA_DATA(sa); RTA_OK(a, rem); a = RTA_NEXT(a, rem)) { | |
859 | SPRINT_BUF(keyid); | |
860 | bool state; | |
861 | ||
862 | parse_rtattr_nested(sa_attr, MACSEC_SA_ATTR_MAX + 1, a); | |
863 | state = rta_getattr_u8(sa_attr[MACSEC_SA_ATTR_ACTIVE]); | |
864 | printf("%s%s%d: PN %u, state %s, key %s\n", prefix, prefix, | |
865 | rta_getattr_u8(sa_attr[MACSEC_SA_ATTR_AN]), | |
866 | rta_getattr_u32(sa_attr[MACSEC_SA_ATTR_PN]), | |
867 | values_on_off[state], | |
868 | hexstring_n2a(RTA_DATA(sa_attr[MACSEC_SA_ATTR_KEYID]), | |
869 | RTA_PAYLOAD(sa_attr[MACSEC_SA_ATTR_KEYID]), | |
870 | keyid, sizeof(keyid))); | |
871 | print_rxsa_stats(prefix, sa_attr[MACSEC_SA_ATTR_STATS]); | |
872 | } | |
873 | } | |
874 | ||
875 | static int process(const struct sockaddr_nl *who, struct nlmsghdr *n, | |
876 | void *arg) | |
877 | { | |
878 | struct genlmsghdr *ghdr; | |
879 | struct rtattr *attrs[MACSEC_ATTR_MAX + 1], *sc, *c; | |
880 | struct rtattr *attrs_secy[MACSEC_SECY_ATTR_MAX + 1]; | |
881 | int len = n->nlmsg_len; | |
882 | int ifindex; | |
883 | __u64 sci; | |
884 | __u8 encoding_sa; | |
885 | int rem; | |
886 | ||
887 | if (n->nlmsg_type != genl_family) | |
888 | return -1; | |
889 | ||
890 | len -= NLMSG_LENGTH(GENL_HDRLEN); | |
891 | if (len < 0) | |
892 | return -1; | |
893 | ||
894 | ghdr = NLMSG_DATA(n); | |
895 | if (ghdr->cmd != MACSEC_CMD_GET_TXSC) | |
896 | return 0; | |
897 | ||
898 | parse_rtattr(attrs, MACSEC_ATTR_MAX, (void *) ghdr + GENL_HDRLEN, len); | |
899 | if (!validate_dump(attrs)) { | |
900 | printf("incomplete dump message\n"); | |
901 | return -1; | |
902 | } | |
903 | ||
904 | ifindex = rta_getattr_u32(attrs[MACSEC_ATTR_IFINDEX]); | |
905 | parse_rtattr_nested(attrs_secy, MACSEC_SECY_ATTR_MAX + 1, | |
906 | attrs[MACSEC_ATTR_SECY]); | |
907 | ||
908 | if (!validate_secy_dump(attrs_secy)) { | |
909 | printf("incomplete dump message\n"); | |
910 | return -1; | |
911 | } | |
912 | ||
913 | sci = rta_getattr_u64(attrs_secy[MACSEC_SECY_ATTR_SCI]); | |
914 | encoding_sa = rta_getattr_u8(attrs_secy[MACSEC_SECY_ATTR_ENCODING_SA]); | |
915 | ||
916 | if (filter.ifindex && ifindex != filter.ifindex) | |
917 | return 0; | |
918 | ||
919 | if (filter.sci && sci != filter.sci) | |
920 | return 0; | |
921 | ||
922 | printf("%d: %s: ", ifindex, ll_index_to_name(ifindex)); | |
923 | print_attrs(" ", attrs_secy); | |
924 | ||
925 | print_tx_sc(" ", sci, encoding_sa, | |
926 | attrs[MACSEC_ATTR_TXSC_STATS], | |
927 | attrs[MACSEC_ATTR_SECY_STATS], | |
928 | attrs[MACSEC_ATTR_TXSA_LIST]); | |
929 | ||
930 | if (!attrs[MACSEC_ATTR_RXSC_LIST]) | |
931 | return 0; | |
932 | ||
933 | sc = attrs[MACSEC_ATTR_RXSC_LIST]; | |
934 | rem = RTA_PAYLOAD(sc); | |
935 | for (c = RTA_DATA(sc); RTA_OK(c, rem); c = RTA_NEXT(c, rem)) { | |
936 | struct rtattr *sc_attr[MACSEC_RXSC_ATTR_MAX + 1]; | |
937 | ||
938 | parse_rtattr_nested(sc_attr, MACSEC_RXSC_ATTR_MAX + 1, c); | |
939 | print_rx_sc(" ", | |
940 | rta_getattr_u64(sc_attr[MACSEC_RXSC_ATTR_SCI]), | |
941 | rta_getattr_u32(sc_attr[MACSEC_RXSC_ATTR_ACTIVE]), | |
942 | sc_attr[MACSEC_RXSC_ATTR_STATS], | |
943 | sc_attr[MACSEC_RXSC_ATTR_SA_LIST]); | |
944 | } | |
945 | ||
946 | return 0; | |
947 | } | |
948 | ||
949 | static int do_dump(int ifindex) | |
950 | { | |
951 | MACSEC_GENL_REQ(req, MACSEC_BUFLEN, MACSEC_CMD_GET_TXSC, | |
952 | NLM_F_REQUEST | NLM_F_DUMP); | |
953 | ||
954 | memset(&filter, 0, sizeof(filter)); | |
955 | filter.ifindex = ifindex; | |
956 | ||
957 | req.n.nlmsg_seq = genl_rth.dump = ++genl_rth.seq; | |
958 | if (rtnl_send(&genl_rth, &req, req.n.nlmsg_len) < 0) { | |
959 | perror("Failed to send dump request"); | |
960 | exit(1); | |
961 | } | |
962 | ||
963 | if (rtnl_dump_filter(&genl_rth, process, stdout) < 0) { | |
964 | fprintf(stderr, "Dump terminated\n"); | |
965 | exit(1); | |
966 | } | |
967 | ||
968 | return 0; | |
969 | } | |
970 | ||
971 | static int do_show(int argc, char **argv) | |
972 | { | |
973 | int ifindex; | |
974 | ||
975 | if (argc == 0) | |
976 | return do_dump(0); | |
977 | ||
978 | ifindex = ll_name_to_index(*argv); | |
979 | if (ifindex == 0) { | |
980 | fprintf(stderr, "Device \"%s\" does not exist.\n", *argv); | |
981 | return -1; | |
982 | } | |
983 | ||
984 | argc--, argv++; | |
985 | if (argc == 0) | |
986 | return do_dump(ifindex); | |
987 | ||
988 | ipmacsec_usage(); | |
989 | return -1; | |
990 | } | |
991 | ||
992 | int do_ipmacsec(int argc, char **argv) | |
993 | { | |
b26fc590 SD |
994 | if (argc < 1) |
995 | ipmacsec_usage(); | |
996 | ||
997 | if (matches(*argv, "help") == 0) | |
998 | ipmacsec_usage(); | |
999 | ||
688f9aa4 SD |
1000 | if (genl_init_handle(&genl_rth, MACSEC_GENL_NAME, &genl_family)) |
1001 | exit(1); | |
1002 | ||
b26fc590 SD |
1003 | if (matches(*argv, "show") == 0) |
1004 | return do_show(argc-1, argv+1); | |
1005 | ||
1006 | if (matches(*argv, "add") == 0) | |
1007 | return do_modify(CMD_ADD, argc-1, argv+1); | |
1008 | if (matches(*argv, "set") == 0) | |
1009 | return do_modify(CMD_UPD, argc-1, argv+1); | |
1010 | if (matches(*argv, "delete") == 0) | |
1011 | return do_modify(CMD_DEL, argc-1, argv+1); | |
1012 | ||
1013 | fprintf(stderr, "Command \"%s\" is unknown, try \"ip macsec help\".\n", | |
1014 | *argv); | |
1015 | exit(-1); | |
1016 | } | |
1017 | ||
1018 | /* device creation */ | |
1019 | static void macsec_print_opt(struct link_util *lu, FILE *f, struct rtattr *tb[]) | |
1020 | { | |
1021 | if (!tb) | |
1022 | return; | |
1023 | ||
1024 | if (tb[IFLA_MACSEC_SCI]) { | |
c3398346 JF |
1025 | if (is_json_context()) { |
1026 | SPRINT_BUF(b1); | |
1027 | ||
1028 | snprintf(b1, sizeof(b1), "%016llx", | |
1029 | ntohll(rta_getattr_u64(tb[IFLA_MACSEC_SCI]))); | |
1030 | print_string(PRINT_JSON, "sci", NULL, b1); | |
1031 | } else { | |
1032 | fprintf(f, "sci %016llx ", | |
1033 | ntohll(rta_getattr_u64(tb[IFLA_MACSEC_SCI]))); | |
1034 | } | |
b26fc590 SD |
1035 | } |
1036 | ||
1037 | print_flag(f, tb, "protect", IFLA_MACSEC_PROTECT); | |
1038 | ||
1039 | if (tb[IFLA_MACSEC_CIPHER_SUITE]) { | |
1040 | __u64 csid = rta_getattr_u64(tb[IFLA_MACSEC_CIPHER_SUITE]); | |
1041 | ||
c3398346 JF |
1042 | print_string(PRINT_ANY, |
1043 | "cipher_suite", | |
1044 | "cipher %s ", | |
1045 | cs_id_to_name(csid)); | |
b26fc590 SD |
1046 | } |
1047 | ||
1048 | if (tb[IFLA_MACSEC_ICV_LEN]) { | |
c3398346 JF |
1049 | if (is_json_context()) { |
1050 | char b2[4]; | |
1051 | ||
1052 | snprintf(b2, sizeof(b2), "%hhu", | |
1053 | rta_getattr_u8(tb[IFLA_MACSEC_ICV_LEN])); | |
1054 | print_uint(PRINT_JSON, "icv_len", NULL, atoi(b2)); | |
1055 | } else { | |
1056 | fprintf(f, "icvlen %hhu ", | |
1057 | rta_getattr_u8(tb[IFLA_MACSEC_ICV_LEN])); | |
1058 | } | |
b26fc590 SD |
1059 | } |
1060 | ||
1061 | if (tb[IFLA_MACSEC_ENCODING_SA]) { | |
c3398346 JF |
1062 | if (is_json_context()) { |
1063 | char b2[4]; | |
1064 | ||
1065 | snprintf(b2, sizeof(b2), "%hhu", | |
1066 | rta_getattr_u8(tb[IFLA_MACSEC_ENCODING_SA])); | |
1067 | print_uint(PRINT_JSON, "encoding_sa", NULL, atoi(b2)); | |
1068 | } else { | |
1069 | fprintf(f, "encodingsa %hhu ", | |
1070 | rta_getattr_u8(tb[IFLA_MACSEC_ENCODING_SA])); | |
1071 | } | |
b26fc590 SD |
1072 | } |
1073 | ||
1074 | if (tb[IFLA_MACSEC_VALIDATION]) { | |
1075 | __u8 val = rta_getattr_u8(tb[IFLA_MACSEC_VALIDATION]); | |
1076 | ||
c3398346 JF |
1077 | print_string(PRINT_ANY, |
1078 | "validation", | |
1079 | "validate %s ", | |
1080 | VALIDATE_STR[val]); | |
1081 | } | |
1082 | ||
1083 | const char *inc_sci, *es, *replay; | |
1084 | ||
1085 | if (is_json_context()) { | |
1086 | inc_sci = "inc_sci"; | |
1087 | replay = "replay_protect"; | |
1088 | es = "es"; | |
1089 | } else { | |
1090 | inc_sci = "send_sci"; | |
1091 | es = "end_station"; | |
1092 | replay = "replay"; | |
b26fc590 SD |
1093 | } |
1094 | ||
1095 | print_flag(f, tb, "encrypt", IFLA_MACSEC_ENCRYPT); | |
c3398346 JF |
1096 | print_flag(f, tb, inc_sci, IFLA_MACSEC_INC_SCI); |
1097 | print_flag(f, tb, es, IFLA_MACSEC_ES); | |
b26fc590 | 1098 | print_flag(f, tb, "scb", IFLA_MACSEC_SCB); |
c3398346 | 1099 | print_flag(f, tb, replay, IFLA_MACSEC_REPLAY_PROTECT); |
b26fc590 | 1100 | |
c3398346 JF |
1101 | if (tb[IFLA_MACSEC_WINDOW]) |
1102 | print_int(PRINT_ANY, | |
1103 | "window", | |
1104 | "window %d ", | |
1105 | rta_getattr_u32(tb[IFLA_MACSEC_WINDOW])); | |
b26fc590 SD |
1106 | } |
1107 | ||
b26fc590 SD |
1108 | static bool check_txsc_flags(bool es, bool scb, bool sci) |
1109 | { | |
1110 | if (sci && (es || scb)) | |
1111 | return false; | |
1112 | if (es && scb) | |
1113 | return false; | |
1114 | return true; | |
1115 | } | |
1116 | ||
1117 | static void usage(FILE *f) | |
1118 | { | |
1119 | fprintf(f, | |
5898bd66 | 1120 | "Usage: ... macsec [ [ address <lladdr> ] port { 1..2^16-1 } | sci <u64> ]\n" |
89bb6e67 DC |
1121 | " [ cipher { default | gcm-aes-128 } ]\n" |
1122 | " [ icvlen { 8..16 } ]\n" | |
b26fc590 SD |
1123 | " [ encrypt { on | off } ]\n" |
1124 | " [ send_sci { on | off } ]\n" | |
1125 | " [ end_station { on | off } ]\n" | |
1126 | " [ scb { on | off } ]\n" | |
1127 | " [ protect { on | off } ]\n" | |
1128 | " [ replay { on | off} window { 0..2^32-1 } ]\n" | |
1129 | " [ validate { strict | check | disabled } ]\n" | |
1130 | " [ encodingsa { 0..3 } ]\n" | |
1131 | ); | |
b26fc590 SD |
1132 | } |
1133 | ||
1134 | static int macsec_parse_opt(struct link_util *lu, int argc, char **argv, | |
1135 | struct nlmsghdr *hdr) | |
1136 | { | |
1137 | int ret; | |
1138 | __u8 encoding_sa = 0xff; | |
1139 | __u32 window = -1; | |
1140 | struct cipher_args cipher = {0}; | |
1141 | enum macsec_validation_type validate; | |
1142 | bool es = false, scb = false, send_sci = false; | |
1143 | int replay_protect = -1; | |
1144 | struct sci sci = { 0 }; | |
1145 | ||
1146 | ret = get_sci_portaddr(&sci, &argc, &argv, true, true); | |
1147 | if (ret < 0) { | |
1148 | fprintf(stderr, "expected sci\n"); | |
1149 | return -1; | |
1150 | } | |
1151 | ||
1152 | if (ret > 0) { | |
1153 | if (sci.sci) | |
1154 | addattr_l(hdr, MACSEC_BUFLEN, IFLA_MACSEC_SCI, | |
1155 | &sci.sci, sizeof(sci.sci)); | |
1156 | else | |
1157 | addattr_l(hdr, MACSEC_BUFLEN, IFLA_MACSEC_PORT, | |
1158 | &sci.port, sizeof(sci.port)); | |
1159 | } | |
1160 | ||
1161 | while (argc > 0) { | |
1162 | if (strcmp(*argv, "cipher") == 0) { | |
89bb6e67 | 1163 | NEXT_ARG(); |
b26fc590 | 1164 | if (cipher.id) |
89bb6e67 DC |
1165 | duparg("cipher", *argv); |
1166 | if (strcmp(*argv, "default") == 0 || | |
1167 | strcmp(*argv, "gcm-aes-128") == 0 || | |
1168 | strcmp(*argv, "GCM-AES-128") == 0) | |
1169 | cipher.id = MACSEC_DEFAULT_CIPHER_ID; | |
1170 | else | |
1171 | invarg("expected: default or gcm-aes-128", | |
1172 | *argv); | |
1173 | } else if (strcmp(*argv, "icvlen") == 0) { | |
b26fc590 | 1174 | NEXT_ARG(); |
89bb6e67 DC |
1175 | if (cipher.icv_len) |
1176 | duparg("icvlen", *argv); | |
1177 | get_icvlen(&cipher.icv_len, *argv); | |
b26fc590 SD |
1178 | } else if (strcmp(*argv, "encrypt") == 0) { |
1179 | NEXT_ARG(); | |
1180 | int i; | |
1181 | ||
1182 | ret = one_of("encrypt", *argv, values_on_off, | |
1183 | ARRAY_SIZE(values_on_off), &i); | |
1184 | if (ret != 0) | |
1185 | return ret; | |
1186 | addattr8(hdr, MACSEC_BUFLEN, IFLA_MACSEC_ENCRYPT, i); | |
1187 | } else if (strcmp(*argv, "send_sci") == 0) { | |
1188 | NEXT_ARG(); | |
1189 | int i; | |
1190 | ||
1191 | ret = one_of("send_sci", *argv, values_on_off, | |
1192 | ARRAY_SIZE(values_on_off), &i); | |
1193 | if (ret != 0) | |
1194 | return ret; | |
1195 | send_sci = i; | |
1196 | addattr8(hdr, MACSEC_BUFLEN, | |
1197 | IFLA_MACSEC_INC_SCI, send_sci); | |
1198 | } else if (strcmp(*argv, "end_station") == 0) { | |
1199 | NEXT_ARG(); | |
1200 | int i; | |
1201 | ||
1202 | ret = one_of("end_station", *argv, values_on_off, | |
1203 | ARRAY_SIZE(values_on_off), &i); | |
1204 | if (ret != 0) | |
1205 | return ret; | |
1206 | es = i; | |
1207 | addattr8(hdr, MACSEC_BUFLEN, IFLA_MACSEC_ES, es); | |
1208 | } else if (strcmp(*argv, "scb") == 0) { | |
1209 | NEXT_ARG(); | |
1210 | int i; | |
1211 | ||
1212 | ret = one_of("scb", *argv, values_on_off, | |
1213 | ARRAY_SIZE(values_on_off), &i); | |
1214 | if (ret != 0) | |
1215 | return ret; | |
1216 | scb = i; | |
1217 | addattr8(hdr, MACSEC_BUFLEN, IFLA_MACSEC_SCB, scb); | |
1218 | } else if (strcmp(*argv, "protect") == 0) { | |
1219 | NEXT_ARG(); | |
1220 | int i; | |
1221 | ||
1222 | ret = one_of("protect", *argv, values_on_off, | |
1223 | ARRAY_SIZE(values_on_off), &i); | |
1224 | if (ret != 0) | |
1225 | return ret; | |
1226 | addattr8(hdr, MACSEC_BUFLEN, IFLA_MACSEC_PROTECT, i); | |
1227 | } else if (strcmp(*argv, "replay") == 0) { | |
1228 | NEXT_ARG(); | |
1229 | int i; | |
1230 | ||
1231 | ret = one_of("replay", *argv, values_on_off, | |
1232 | ARRAY_SIZE(values_on_off), &i); | |
1233 | if (ret != 0) | |
1234 | return ret; | |
1235 | replay_protect = !!i; | |
1236 | } else if (strcmp(*argv, "window") == 0) { | |
1237 | NEXT_ARG(); | |
1238 | ret = get_u32(&window, *argv, 0); | |
1239 | if (ret) | |
1240 | invarg("expected replay window size", *argv); | |
1241 | } else if (strcmp(*argv, "validate") == 0) { | |
1242 | NEXT_ARG(); | |
1243 | ret = one_of("validate", *argv, | |
1244 | VALIDATE_STR, ARRAY_SIZE(VALIDATE_STR), | |
1245 | (int *)&validate); | |
1246 | if (ret != 0) | |
1247 | return ret; | |
1248 | addattr8(hdr, MACSEC_BUFLEN, | |
1249 | IFLA_MACSEC_VALIDATION, validate); | |
1250 | } else if (strcmp(*argv, "encodingsa") == 0) { | |
1251 | if (encoding_sa != 0xff) | |
1252 | duparg2("encodingsa", "encodingsa"); | |
1253 | NEXT_ARG(); | |
1254 | ret = get_an(&encoding_sa, *argv); | |
1255 | if (ret) | |
1256 | invarg("expected an { 0..3 }", *argv); | |
1257 | } else { | |
1258 | fprintf(stderr, "macsec: unknown command \"%s\"?\n", | |
1259 | *argv); | |
1260 | usage(stderr); | |
1261 | return -1; | |
1262 | } | |
1263 | ||
1264 | argv++; argc--; | |
1265 | } | |
1266 | ||
1267 | if (!check_txsc_flags(es, scb, send_sci)) { | |
1268 | fprintf(stderr, "invalid combination of send_sci/end_station/scb\n"); | |
1269 | return -1; | |
1270 | } | |
1271 | ||
1272 | if (window != -1 && replay_protect == -1) { | |
1273 | fprintf(stderr, | |
1274 | "replay window set, but replay protection not enabled. did you mean 'replay on window %u'?\n", | |
1275 | window); | |
1276 | return -1; | |
1277 | } else if (window == -1 && replay_protect == 1) { | |
1278 | fprintf(stderr, | |
1279 | "replay protection enabled, but no window set. did you mean 'replay on window VALUE'?\n"); | |
1280 | return -1; | |
1281 | } | |
1282 | ||
89bb6e67 | 1283 | if (cipher.id) |
b26fc590 SD |
1284 | addattr_l(hdr, MACSEC_BUFLEN, IFLA_MACSEC_CIPHER_SUITE, |
1285 | &cipher.id, sizeof(cipher.id)); | |
89bb6e67 | 1286 | if (cipher.icv_len) |
b26fc590 SD |
1287 | addattr_l(hdr, MACSEC_BUFLEN, IFLA_MACSEC_ICV_LEN, |
1288 | &cipher.icv_len, sizeof(cipher.icv_len)); | |
b26fc590 SD |
1289 | |
1290 | if (replay_protect != -1) { | |
1291 | addattr32(hdr, MACSEC_BUFLEN, IFLA_MACSEC_WINDOW, window); | |
1292 | addattr8(hdr, MACSEC_BUFLEN, IFLA_MACSEC_REPLAY_PROTECT, | |
1293 | replay_protect); | |
1294 | } | |
1295 | ||
1296 | if (encoding_sa != 0xff) { | |
1297 | addattr_l(hdr, MACSEC_BUFLEN, IFLA_MACSEC_ENCODING_SA, | |
1298 | &encoding_sa, sizeof(encoding_sa)); | |
1299 | } | |
1300 | ||
1301 | return 0; | |
1302 | } | |
1303 | ||
1304 | static void macsec_print_help(struct link_util *lu, int argc, char **argv, | |
1305 | FILE *f) | |
1306 | { | |
1307 | usage(f); | |
1308 | } | |
1309 | ||
1310 | struct link_util macsec_link_util = { | |
1311 | .id = "macsec", | |
1312 | .maxattr = IFLA_MACSEC_MAX, | |
1313 | .parse_opt = macsec_parse_opt, | |
1314 | .print_help = macsec_print_help, | |
1315 | .print_opt = macsec_print_opt, | |
b26fc590 | 1316 | }; |