]>
Commit | Line | Data |
---|---|---|
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 | ||
c2f260f4 | 26 | static const char * const values_on_off[] = { "off", "on" }; |
b26fc590 | 27 | |
c2f260f4 | 28 | static const char * const validate_str[] = { |
b26fc590 SD |
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 | { | |
c2f260f4 SH |
84 | fprintf(stderr, |
85 | "Usage: ip macsec add DEV tx sa { 0..3 } [ OPTS ] key ID KEY\n" | |
86 | " ip macsec set DEV tx sa { 0..3 } [ OPTS ]\n" | |
87 | " ip macsec del DEV tx sa { 0..3 }\n" | |
88 | " ip macsec add DEV rx SCI [ on | off ]\n" | |
89 | " ip macsec set DEV rx SCI [ on | off ]\n" | |
90 | " ip macsec del DEV rx SCI\n" | |
91 | " ip macsec add DEV rx SCI sa { 0..3 } [ OPTS ] key ID KEY\n" | |
92 | " ip macsec set DEV rx SCI sa { 0..3 } [ OPTS ]\n" | |
93 | " ip macsec del DEV rx SCI sa { 0..3 }\n" | |
94 | " ip macsec show\n" | |
95 | " ip macsec show DEV\n" | |
96 | "where OPTS := [ pn <u32> ] [ on | off ]\n" | |
97 | " ID := 128-bit hex string\n" | |
98 | " KEY := 128-bit hex string\n" | |
99 | " SCI := { sci <u64> | port { 1..2^16-1 } address <lladdr> }\n"); | |
b26fc590 SD |
100 | |
101 | exit(-1); | |
102 | } | |
103 | ||
c2f260f4 | 104 | static int one_of(const char *msg, const char *realval, const char * const *list, |
b26fc590 SD |
105 | size_t len, int *index) |
106 | { | |
107 | int i; | |
108 | ||
109 | for (i = 0; i < len; i++) { | |
110 | if (matches(realval, list[i]) == 0) { | |
111 | *index = i; | |
112 | return 0; | |
113 | } | |
114 | } | |
115 | ||
116 | fprintf(stderr, "Error: argument of \"%s\" must be one of ", msg); | |
117 | for (i = 0; i < len; i++) | |
118 | fprintf(stderr, "\"%s\", ", list[i]); | |
119 | fprintf(stderr, "not \"%s\"\n", realval); | |
120 | return -1; | |
121 | } | |
122 | ||
123 | static int get_an(__u8 *val, const char *arg) | |
124 | { | |
125 | int ret = get_u8(val, arg, 0); | |
126 | ||
127 | if (ret) | |
128 | return ret; | |
129 | ||
130 | if (*val > 3) | |
131 | return -1; | |
132 | ||
133 | return 0; | |
134 | } | |
135 | ||
136 | static int get_sci(__u64 *sci, const char *arg) | |
137 | { | |
0330f49e | 138 | return get_be64(sci, arg, 16); |
b26fc590 SD |
139 | } |
140 | ||
141 | static int get_port(__be16 *port, const char *arg) | |
142 | { | |
5898bd66 | 143 | return get_be16(port, arg, 0); |
b26fc590 SD |
144 | } |
145 | ||
146 | #define _STR(a) #a | |
147 | #define STR(a) _STR(a) | |
148 | ||
149 | static void get_icvlen(__u8 *icvlen, char *arg) | |
150 | { | |
151 | int ret = get_u8(icvlen, arg, 10); | |
152 | ||
153 | if (ret) | |
154 | invarg("expected ICV length", arg); | |
155 | ||
f20f5f79 | 156 | if (*icvlen < MACSEC_MIN_ICV_LEN || *icvlen > MACSEC_STD_ICV_LEN) |
b26fc590 | 157 | invarg("ICV length must be in the range {" |
f20f5f79 | 158 | STR(MACSEC_MIN_ICV_LEN) ".." STR(MACSEC_STD_ICV_LEN) |
b26fc590 SD |
159 | "}", arg); |
160 | } | |
161 | ||
162 | static bool get_sa(int *argcp, char ***argvp, __u8 *an) | |
163 | { | |
164 | int argc = *argcp; | |
165 | char **argv = *argvp; | |
166 | int ret; | |
167 | ||
168 | if (argc <= 0 || strcmp(*argv, "sa") != 0) | |
169 | return false; | |
170 | ||
171 | NEXT_ARG(); | |
172 | ret = get_an(an, *argv); | |
173 | if (ret) | |
174 | invarg("expected an { 0..3 }", *argv); | |
175 | argc--; argv++; | |
176 | ||
177 | *argvp = argv; | |
178 | *argcp = argc; | |
179 | return true; | |
180 | } | |
181 | ||
182 | static int parse_sa_args(int *argcp, char ***argvp, struct sa_desc *sa) | |
183 | { | |
184 | int argc = *argcp; | |
185 | char **argv = *argvp; | |
186 | int ret; | |
187 | bool active_set = false; | |
188 | ||
189 | while (argc > 0) { | |
190 | if (strcmp(*argv, "pn") == 0) { | |
191 | if (sa->pn != 0) | |
192 | duparg2("pn", "pn"); | |
193 | NEXT_ARG(); | |
194 | ret = get_u32(&sa->pn, *argv, 0); | |
195 | if (ret) | |
196 | invarg("expected pn", *argv); | |
197 | if (sa->pn == 0) | |
198 | invarg("expected pn != 0", *argv); | |
199 | } else if (strcmp(*argv, "key") == 0) { | |
200 | unsigned int len; | |
201 | ||
202 | NEXT_ARG(); | |
203 | if (!hexstring_a2n(*argv, sa->key_id, MACSEC_KEYID_LEN, | |
204 | &len)) | |
205 | invarg("expected key id", *argv); | |
206 | NEXT_ARG(); | |
207 | if (!hexstring_a2n(*argv, sa->key, MACSEC_MAX_KEY_LEN, | |
208 | &sa->key_len)) | |
209 | invarg("expected key", *argv); | |
210 | } else if (strcmp(*argv, "on") == 0) { | |
211 | if (active_set) | |
212 | duparg2("on/off", "on"); | |
213 | sa->active = true; | |
214 | active_set = true; | |
215 | } else if (strcmp(*argv, "off") == 0) { | |
216 | if (active_set) | |
217 | duparg2("on/off", "off"); | |
218 | sa->active = false; | |
219 | active_set = true; | |
220 | } else { | |
221 | fprintf(stderr, "macsec: unknown command \"%s\"?\n", | |
222 | *argv); | |
223 | ipmacsec_usage(); | |
224 | } | |
225 | ||
226 | argv++; argc--; | |
227 | } | |
228 | ||
229 | *argvp = argv; | |
230 | *argcp = argc; | |
231 | return 0; | |
232 | } | |
233 | ||
234 | static __u64 make_sci(char *addr, __be16 port) | |
235 | { | |
236 | __u64 sci; | |
237 | ||
238 | memcpy(&sci, addr, ETH_ALEN); | |
239 | memcpy(((char *)&sci) + ETH_ALEN, &port, sizeof(port)); | |
240 | ||
241 | return sci; | |
242 | } | |
243 | ||
244 | static bool sci_complete(bool sci, bool port, bool addr, bool port_only) | |
245 | { | |
246 | return sci || (port && (addr || port_only)); | |
247 | } | |
248 | ||
249 | static int get_sci_portaddr(struct sci *sci, int *argcp, char ***argvp, | |
250 | bool port_only, bool optional) | |
251 | { | |
252 | int argc = *argcp; | |
253 | char **argv = *argvp; | |
254 | int ret; | |
255 | bool p = false, a = false, s = false; | |
256 | ||
257 | while (argc > 0) { | |
258 | if (strcmp(*argv, "sci") == 0) { | |
259 | if (p) | |
260 | invarg("expected address", *argv); | |
261 | if (a) | |
262 | invarg("expected port", *argv); | |
263 | NEXT_ARG(); | |
264 | ret = get_sci(&sci->sci, *argv); | |
265 | if (ret) | |
266 | invarg("expected sci", *argv); | |
267 | s = true; | |
268 | } else if (strcmp(*argv, "port") == 0) { | |
269 | NEXT_ARG(); | |
270 | ret = get_port(&sci->port, *argv); | |
271 | if (ret) | |
272 | invarg("expected port", *argv); | |
273 | if (sci->port == 0) | |
274 | invarg("expected port != 0", *argv); | |
275 | p = true; | |
276 | } else if (strcmp(*argv, "address") == 0) { | |
277 | NEXT_ARG(); | |
278 | ret = ll_addr_a2n(sci->abuf, sizeof(sci->abuf), *argv); | |
279 | if (ret < 0) | |
280 | invarg("expected lladdr", *argv); | |
281 | a = true; | |
282 | } else if (optional) { | |
283 | break; | |
284 | } else { | |
285 | invarg("expected sci, port, or address", *argv); | |
286 | } | |
287 | ||
288 | argv++; argc--; | |
289 | ||
290 | if (sci_complete(s, p, a, port_only)) | |
291 | break; | |
292 | } | |
293 | ||
294 | if (!optional && !sci_complete(s, p, a, port_only)) | |
295 | return -1; | |
296 | ||
297 | if (p && a) | |
298 | sci->sci = make_sci(sci->abuf, sci->port); | |
299 | ||
300 | *argvp = argv; | |
301 | *argcp = argc; | |
302 | ||
303 | return p || a || s; | |
304 | } | |
305 | ||
306 | static bool parse_rxsci(int *argcp, char ***argvp, struct rxsc_desc *rxsc, | |
307 | struct sa_desc *rxsa) | |
308 | { | |
309 | struct sci sci = { 0 }; | |
310 | ||
311 | if (*argcp == 0 || | |
312 | get_sci_portaddr(&sci, argcp, argvp, false, false) < 0) { | |
313 | fprintf(stderr, "expected sci\n"); | |
314 | ipmacsec_usage(); | |
315 | } | |
316 | ||
317 | rxsc->sci = sci.sci; | |
318 | ||
319 | return get_sa(argcp, argvp, &rxsa->an); | |
320 | } | |
321 | ||
322 | static int parse_rxsci_args(int *argcp, char ***argvp, struct rxsc_desc *rxsc) | |
323 | { | |
324 | int argc = *argcp; | |
325 | char **argv = *argvp; | |
326 | bool active_set = false; | |
327 | ||
328 | while (argc > 0) { | |
329 | if (strcmp(*argv, "on") == 0) { | |
330 | if (active_set) | |
331 | duparg2("on/off", "on"); | |
332 | rxsc->active = true; | |
333 | active_set = true; | |
334 | } else if (strcmp(*argv, "off") == 0) { | |
335 | if (active_set) | |
336 | duparg2("on/off", "off"); | |
337 | rxsc->active = false; | |
338 | active_set = true; | |
339 | } else { | |
340 | fprintf(stderr, "macsec: unknown command \"%s\"?\n", | |
341 | *argv); | |
342 | ipmacsec_usage(); | |
343 | } | |
344 | ||
345 | argv++; argc--; | |
346 | } | |
347 | ||
348 | *argvp = argv; | |
349 | *argcp = argc; | |
350 | return 0; | |
351 | } | |
352 | ||
353 | enum cmd { | |
354 | CMD_ADD, | |
355 | CMD_DEL, | |
356 | CMD_UPD, | |
357 | __CMD_MAX | |
358 | }; | |
359 | ||
360 | static const enum macsec_nl_commands macsec_commands[__CMD_MAX][2][2] = { | |
361 | [CMD_ADD] = { | |
362 | [0] = {-1, MACSEC_CMD_ADD_RXSC}, | |
363 | [1] = {MACSEC_CMD_ADD_TXSA, MACSEC_CMD_ADD_RXSA}, | |
364 | }, | |
365 | [CMD_UPD] = { | |
366 | [0] = {-1, MACSEC_CMD_UPD_RXSC}, | |
367 | [1] = {MACSEC_CMD_UPD_TXSA, MACSEC_CMD_UPD_RXSA}, | |
368 | }, | |
369 | [CMD_DEL] = { | |
370 | [0] = {-1, MACSEC_CMD_DEL_RXSC}, | |
371 | [1] = {MACSEC_CMD_DEL_TXSA, MACSEC_CMD_DEL_RXSA}, | |
372 | }, | |
373 | }; | |
374 | ||
375 | static int do_modify_nl(enum cmd c, enum macsec_nl_commands cmd, int ifindex, | |
376 | struct rxsc_desc *rxsc, struct sa_desc *sa) | |
377 | { | |
378 | struct rtattr *attr_sa; | |
379 | ||
380 | MACSEC_GENL_REQ(req, MACSEC_BUFLEN, cmd, NLM_F_REQUEST); | |
381 | ||
382 | addattr32(&req.n, MACSEC_BUFLEN, MACSEC_ATTR_IFINDEX, ifindex); | |
383 | if (rxsc) { | |
384 | struct rtattr *attr_rxsc; | |
385 | ||
386 | attr_rxsc = addattr_nest(&req.n, MACSEC_BUFLEN, | |
387 | MACSEC_ATTR_RXSC_CONFIG); | |
388 | addattr64(&req.n, MACSEC_BUFLEN, | |
389 | MACSEC_RXSC_ATTR_SCI, rxsc->sci); | |
390 | if (c != CMD_DEL && rxsc->active != 0xff) | |
391 | addattr8(&req.n, MACSEC_BUFLEN, | |
392 | MACSEC_RXSC_ATTR_ACTIVE, rxsc->active); | |
393 | ||
394 | addattr_nest_end(&req.n, attr_rxsc); | |
395 | } | |
396 | ||
397 | if (sa->an == 0xff) | |
398 | goto talk; | |
399 | ||
400 | attr_sa = addattr_nest(&req.n, MACSEC_BUFLEN, MACSEC_ATTR_SA_CONFIG); | |
401 | ||
402 | addattr8(&req.n, MACSEC_BUFLEN, MACSEC_SA_ATTR_AN, sa->an); | |
403 | ||
404 | if (c != CMD_DEL) { | |
405 | if (sa->pn) | |
406 | addattr32(&req.n, MACSEC_BUFLEN, MACSEC_SA_ATTR_PN, | |
407 | sa->pn); | |
408 | ||
409 | if (sa->key_len) { | |
410 | addattr_l(&req.n, MACSEC_BUFLEN, MACSEC_SA_ATTR_KEYID, | |
411 | sa->key_id, MACSEC_KEYID_LEN); | |
412 | addattr_l(&req.n, MACSEC_BUFLEN, MACSEC_SA_ATTR_KEY, | |
413 | sa->key, sa->key_len); | |
414 | } | |
415 | ||
416 | if (sa->active != 0xff) { | |
417 | addattr8(&req.n, MACSEC_BUFLEN, | |
418 | MACSEC_SA_ATTR_ACTIVE, sa->active); | |
419 | } | |
420 | } | |
421 | ||
422 | addattr_nest_end(&req.n, attr_sa); | |
423 | ||
424 | talk: | |
86bf43c7 | 425 | if (rtnl_talk(&genl_rth, &req.n, NULL) < 0) |
b26fc590 SD |
426 | return -2; |
427 | ||
428 | return 0; | |
429 | } | |
430 | ||
431 | static bool check_sa_args(enum cmd c, struct sa_desc *sa) | |
432 | { | |
433 | if (c == CMD_ADD) { | |
434 | if (!sa->key_len) { | |
435 | fprintf(stderr, "cannot create SA without key\n"); | |
436 | return -1; | |
437 | } | |
438 | ||
439 | if (sa->pn == 0) { | |
440 | fprintf(stderr, "must specify a packet number != 0\n"); | |
441 | return -1; | |
442 | } | |
443 | } else if (c == CMD_UPD) { | |
444 | if (sa->key_len) { | |
445 | fprintf(stderr, "cannot change key on SA\n"); | |
446 | return -1; | |
447 | } | |
448 | } | |
449 | ||
450 | return 0; | |
451 | } | |
452 | ||
453 | static int do_modify_txsa(enum cmd c, int argc, char **argv, int ifindex) | |
454 | { | |
455 | struct sa_desc txsa = {0}; | |
456 | enum macsec_nl_commands cmd; | |
457 | ||
458 | txsa.an = 0xff; | |
459 | txsa.active = 0xff; | |
460 | ||
461 | if (argc == 0 || !get_sa(&argc, &argv, &txsa.an)) | |
462 | ipmacsec_usage(); | |
463 | ||
464 | if (c == CMD_DEL) | |
465 | goto modify; | |
466 | ||
467 | if (parse_sa_args(&argc, &argv, &txsa)) | |
468 | return -1; | |
469 | ||
470 | if (check_sa_args(c, &txsa)) | |
471 | return -1; | |
472 | ||
473 | modify: | |
474 | cmd = macsec_commands[c][1][0]; | |
475 | return do_modify_nl(c, cmd, ifindex, NULL, &txsa); | |
476 | } | |
477 | ||
478 | static int do_modify_rxsci(enum cmd c, int argc, char **argv, int ifindex) | |
479 | { | |
480 | struct rxsc_desc rxsc = {0}; | |
481 | struct sa_desc rxsa = {0}; | |
482 | bool sa_set; | |
483 | enum macsec_nl_commands cmd; | |
484 | ||
485 | rxsc.ifindex = ifindex; | |
486 | rxsc.active = 0xff; | |
487 | rxsa.an = 0xff; | |
488 | rxsa.active = 0xff; | |
489 | ||
490 | sa_set = parse_rxsci(&argc, &argv, &rxsc, &rxsa); | |
491 | ||
492 | if (c == CMD_DEL) | |
493 | goto modify; | |
494 | ||
495 | if (sa_set && (parse_sa_args(&argc, &argv, &rxsa) || | |
496 | check_sa_args(c, &rxsa))) | |
497 | return -1; | |
498 | if (!sa_set && parse_rxsci_args(&argc, &argv, &rxsc)) | |
499 | return -1; | |
500 | ||
501 | modify: | |
502 | cmd = macsec_commands[c][sa_set][1]; | |
503 | return do_modify_nl(c, cmd, rxsc.ifindex, &rxsc, &rxsa); | |
504 | } | |
505 | ||
506 | static int do_modify(enum cmd c, int argc, char **argv) | |
507 | { | |
508 | int ifindex; | |
509 | ||
510 | if (argc == 0) | |
511 | ipmacsec_usage(); | |
512 | ||
513 | ifindex = ll_name_to_index(*argv); | |
514 | if (!ifindex) { | |
515 | fprintf(stderr, "Device \"%s\" does not exist.\n", *argv); | |
516 | return -1; | |
517 | } | |
518 | argc--; argv++; | |
519 | ||
520 | if (argc == 0) | |
521 | ipmacsec_usage(); | |
522 | ||
523 | if (strcmp(*argv, "tx") == 0) | |
524 | return do_modify_txsa(c, argc-1, argv+1, ifindex); | |
525 | if (strcmp(*argv, "rx") == 0) | |
526 | return do_modify_rxsci(c, argc-1, argv+1, ifindex); | |
527 | ||
528 | ipmacsec_usage(); | |
529 | return -1; | |
530 | } | |
531 | ||
532 | /* dump/show */ | |
533 | static struct { | |
534 | int ifindex; | |
535 | __u64 sci; | |
536 | } filter; | |
537 | ||
538 | static int validate_dump(struct rtattr **attrs) | |
539 | { | |
540 | return attrs[MACSEC_ATTR_IFINDEX] && attrs[MACSEC_ATTR_SECY] && | |
541 | attrs[MACSEC_ATTR_TXSA_LIST] && attrs[MACSEC_ATTR_RXSC_LIST] && | |
542 | attrs[MACSEC_ATTR_TXSC_STATS] && attrs[MACSEC_ATTR_SECY_STATS]; | |
543 | ||
544 | } | |
545 | ||
546 | static int validate_secy_dump(struct rtattr **attrs) | |
547 | { | |
548 | return attrs[MACSEC_SECY_ATTR_SCI] && | |
549 | attrs[MACSEC_SECY_ATTR_ENCODING_SA] && | |
550 | attrs[MACSEC_SECY_ATTR_CIPHER_SUITE] && | |
551 | attrs[MACSEC_SECY_ATTR_ICV_LEN] && | |
552 | attrs[MACSEC_SECY_ATTR_PROTECT] && | |
553 | attrs[MACSEC_SECY_ATTR_REPLAY] && | |
554 | attrs[MACSEC_SECY_ATTR_OPER] && | |
555 | attrs[MACSEC_SECY_ATTR_VALIDATE] && | |
556 | attrs[MACSEC_SECY_ATTR_ENCRYPT] && | |
557 | attrs[MACSEC_SECY_ATTR_INC_SCI] && | |
558 | attrs[MACSEC_SECY_ATTR_ES] && | |
559 | attrs[MACSEC_SECY_ATTR_SCB]; | |
560 | } | |
561 | ||
c0b904de | 562 | static void print_flag(struct rtattr *attrs[], const char *desc, |
b26fc590 SD |
563 | int field) |
564 | { | |
c0b904de | 565 | __u8 flag; |
c3398346 | 566 | |
c0b904de SH |
567 | if (!attrs[field]) |
568 | return; | |
569 | ||
570 | flag = rta_getattr_u8(attrs[field]); | |
571 | if (is_json_context()) | |
572 | print_bool(PRINT_JSON, desc, NULL, flag); | |
573 | else { | |
574 | print_string(PRINT_FP, NULL, "%s ", desc); | |
575 | print_string(PRINT_FP, NULL, "%s ", | |
576 | flag ? "on" : "off"); | |
c3398346 | 577 | } |
b26fc590 SD |
578 | } |
579 | ||
c0b904de SH |
580 | static void print_key(struct rtattr *key) |
581 | { | |
582 | SPRINT_BUF(keyid); | |
583 | ||
584 | print_string(PRINT_ANY, "key", " key %s\n", | |
585 | hexstring_n2a(RTA_DATA(key), RTA_PAYLOAD(key), | |
586 | keyid, sizeof(keyid))); | |
587 | } | |
588 | ||
b26fc590 SD |
589 | #define DEFAULT_CIPHER_NAME "GCM-AES-128" |
590 | ||
591 | static const char *cs_id_to_name(__u64 cid) | |
592 | { | |
593 | switch (cid) { | |
594 | case MACSEC_DEFAULT_CIPHER_ID: | |
595 | case MACSEC_DEFAULT_CIPHER_ALT: | |
596 | return DEFAULT_CIPHER_NAME; | |
597 | default: | |
598 | return "(unknown)"; | |
599 | } | |
600 | } | |
601 | ||
c0b904de | 602 | static void print_attrs(struct rtattr *attrs[]) |
b26fc590 | 603 | { |
c0b904de | 604 | print_flag(attrs, "protect", MACSEC_SECY_ATTR_PROTECT); |
b26fc590 SD |
605 | |
606 | if (attrs[MACSEC_SECY_ATTR_VALIDATE]) { | |
607 | __u8 val = rta_getattr_u8(attrs[MACSEC_SECY_ATTR_VALIDATE]); | |
608 | ||
c0b904de SH |
609 | print_string(PRINT_ANY, "validate", |
610 | "validate %s ", validate_str[val]); | |
b26fc590 SD |
611 | } |
612 | ||
c0b904de SH |
613 | print_flag(attrs, "sc", MACSEC_RXSC_ATTR_ACTIVE); |
614 | print_flag(attrs, "sa", MACSEC_SA_ATTR_ACTIVE); | |
615 | print_flag(attrs, "encrypt", MACSEC_SECY_ATTR_ENCRYPT); | |
616 | print_flag(attrs, "send_sci", MACSEC_SECY_ATTR_INC_SCI); | |
617 | print_flag(attrs, "end_station", MACSEC_SECY_ATTR_ES); | |
618 | print_flag(attrs, "scb", MACSEC_SECY_ATTR_SCB); | |
619 | print_flag(attrs, "replay", MACSEC_SECY_ATTR_REPLAY); | |
b26fc590 | 620 | |
b26fc590 | 621 | if (attrs[MACSEC_SECY_ATTR_WINDOW]) { |
c0b904de SH |
622 | __u32 win = rta_getattr_u32(attrs[MACSEC_SECY_ATTR_WINDOW]); |
623 | ||
624 | print_uint(PRINT_ANY, "window", "window %u ", win); | |
b26fc590 SD |
625 | } |
626 | ||
c0b904de SH |
627 | if (attrs[MACSEC_SECY_ATTR_CIPHER_SUITE]) { |
628 | __u64 cid = rta_getattr_u64(attrs[MACSEC_SECY_ATTR_CIPHER_SUITE]); | |
629 | ||
b85076cd | 630 | print_nl(); |
c0b904de SH |
631 | print_string(PRINT_ANY, "cipher_suite", |
632 | " cipher suite: %s,", cs_id_to_name(cid)); | |
b26fc590 SD |
633 | } |
634 | ||
c0b904de SH |
635 | if (attrs[MACSEC_SECY_ATTR_ICV_LEN]) { |
636 | __u8 icv_len = rta_getattr_u8(attrs[MACSEC_SECY_ATTR_ICV_LEN]); | |
637 | ||
638 | print_uint(PRINT_ANY, "icv_length", | |
639 | " using ICV length %u\n", icv_len); | |
640 | } | |
b26fc590 SD |
641 | } |
642 | ||
79940533 | 643 | static __u64 getattr_u64(const struct rtattr *stat) |
d3418638 | 644 | { |
79940533 SH |
645 | size_t len = RTA_PAYLOAD(stat); |
646 | ||
647 | switch (len) { | |
d3418638 SH |
648 | case sizeof(__u64): |
649 | return rta_getattr_u64(stat); | |
650 | case sizeof(__u32): | |
651 | return rta_getattr_u32(stat); | |
652 | case sizeof(__u16): | |
653 | return rta_getattr_u16(stat); | |
654 | case sizeof(__u8): | |
655 | return rta_getattr_u8(stat); | |
656 | default: | |
79940533 SH |
657 | fprintf(stderr, "invalid attribute length %zu\n", |
658 | len); | |
d3418638 SH |
659 | exit(-1); |
660 | } | |
661 | } | |
662 | ||
c0b904de SH |
663 | static void print_fp_stats(const char *prefix, |
664 | const char *names[], unsigned int num, | |
665 | struct rtattr *stats[]) | |
b26fc590 | 666 | { |
d3418638 SH |
667 | unsigned int i; |
668 | int pad; | |
b26fc590 | 669 | |
d3418638 SH |
670 | printf("%sstats:", prefix); |
671 | ||
672 | for (i = 1; i < num; i++) { | |
673 | if (!names[i]) | |
674 | continue; | |
675 | printf(" %s", names[i]); | |
676 | } | |
677 | ||
678 | printf("\n%s ", prefix); | |
679 | ||
680 | for (i = 1; i < num; i++) { | |
681 | if (!names[i]) | |
682 | continue; | |
683 | ||
684 | pad = strlen(names[i]) + 1; | |
685 | if (stats[i]) | |
4db2ff0d | 686 | printf("%*llu", pad, getattr_u64(stats[i])); |
b26fc590 | 687 | else |
d3418638 | 688 | printf("%*c", pad, '-'); |
b26fc590 | 689 | } |
d3418638 | 690 | printf("\n"); |
b26fc590 SD |
691 | } |
692 | ||
c0b904de SH |
693 | static void print_json_stats(const char *names[], unsigned int num, |
694 | struct rtattr *stats[]) | |
695 | { | |
696 | unsigned int i; | |
697 | ||
698 | for (i = 1; i < num; i++) { | |
699 | if (!names[i] || !stats[i]) | |
700 | continue; | |
701 | ||
4db2ff0d THJ |
702 | print_u64(PRINT_JSON, names[i], |
703 | NULL, getattr_u64(stats[i])); | |
c0b904de SH |
704 | } |
705 | } | |
706 | ||
707 | static void print_stats(const char *prefix, | |
708 | const char *names[], unsigned int num, | |
709 | struct rtattr *stats[]) | |
710 | { | |
711 | ||
712 | if (is_json_context()) | |
713 | print_json_stats(names, num, stats); | |
714 | else | |
715 | print_fp_stats(prefix, names, num, stats); | |
716 | } | |
717 | ||
b26fc590 | 718 | static const char *txsc_stats_names[NUM_MACSEC_TXSC_STATS_ATTR] = { |
3a4df039 DH |
719 | [MACSEC_TXSC_STATS_ATTR_OUT_PKTS_PROTECTED] = "OutPktsProtected", |
720 | [MACSEC_TXSC_STATS_ATTR_OUT_PKTS_ENCRYPTED] = "OutPktsEncrypted", | |
721 | [MACSEC_TXSC_STATS_ATTR_OUT_OCTETS_PROTECTED] = "OutOctetsProtected", | |
722 | [MACSEC_TXSC_STATS_ATTR_OUT_OCTETS_ENCRYPTED] = "OutOctetsEncrypted", | |
b26fc590 SD |
723 | }; |
724 | ||
725 | static void print_txsc_stats(const char *prefix, struct rtattr *attr) | |
726 | { | |
727 | struct rtattr *stats[MACSEC_TXSC_STATS_ATTR_MAX + 1]; | |
b26fc590 SD |
728 | |
729 | if (!attr || show_stats == 0) | |
730 | return; | |
731 | ||
9b45f8ec | 732 | parse_rtattr_nested(stats, MACSEC_TXSC_STATS_ATTR_MAX, attr); |
b26fc590 | 733 | |
d3418638 SH |
734 | print_stats(prefix, txsc_stats_names, NUM_MACSEC_TXSC_STATS_ATTR, |
735 | stats); | |
b26fc590 SD |
736 | } |
737 | ||
738 | static const char *secy_stats_names[NUM_MACSEC_SECY_STATS_ATTR] = { | |
739 | [MACSEC_SECY_STATS_ATTR_OUT_PKTS_UNTAGGED] = "OutPktsUntagged", | |
740 | [MACSEC_SECY_STATS_ATTR_IN_PKTS_UNTAGGED] = "InPktsUntagged", | |
741 | [MACSEC_SECY_STATS_ATTR_OUT_PKTS_TOO_LONG] = "OutPktsTooLong", | |
742 | [MACSEC_SECY_STATS_ATTR_IN_PKTS_NO_TAG] = "InPktsNoTag", | |
743 | [MACSEC_SECY_STATS_ATTR_IN_PKTS_BAD_TAG] = "InPktsBadTag", | |
744 | [MACSEC_SECY_STATS_ATTR_IN_PKTS_UNKNOWN_SCI] = "InPktsUnknownSCI", | |
745 | [MACSEC_SECY_STATS_ATTR_IN_PKTS_NO_SCI] = "InPktsNoSCI", | |
746 | [MACSEC_SECY_STATS_ATTR_IN_PKTS_OVERRUN] = "InPktsOverrun", | |
747 | }; | |
748 | ||
749 | static void print_secy_stats(const char *prefix, struct rtattr *attr) | |
750 | { | |
751 | struct rtattr *stats[MACSEC_SECY_STATS_ATTR_MAX + 1]; | |
b26fc590 SD |
752 | |
753 | if (!attr || show_stats == 0) | |
754 | return; | |
755 | ||
9b45f8ec | 756 | parse_rtattr_nested(stats, MACSEC_SECY_STATS_ATTR_MAX, attr); |
b26fc590 | 757 | |
d3418638 SH |
758 | print_stats(prefix, secy_stats_names, |
759 | NUM_MACSEC_SECY_STATS_ATTR, stats); | |
b26fc590 SD |
760 | } |
761 | ||
762 | static const char *rxsa_stats_names[NUM_MACSEC_SA_STATS_ATTR] = { | |
763 | [MACSEC_SA_STATS_ATTR_IN_PKTS_OK] = "InPktsOK", | |
764 | [MACSEC_SA_STATS_ATTR_IN_PKTS_INVALID] = "InPktsInvalid", | |
765 | [MACSEC_SA_STATS_ATTR_IN_PKTS_NOT_VALID] = "InPktsNotValid", | |
766 | [MACSEC_SA_STATS_ATTR_IN_PKTS_NOT_USING_SA] = "InPktsNotUsingSA", | |
767 | [MACSEC_SA_STATS_ATTR_IN_PKTS_UNUSED_SA] = "InPktsUnusedSA", | |
768 | }; | |
769 | ||
770 | static void print_rxsa_stats(const char *prefix, struct rtattr *attr) | |
771 | { | |
772 | struct rtattr *stats[MACSEC_SA_STATS_ATTR_MAX + 1]; | |
b26fc590 SD |
773 | |
774 | if (!attr || show_stats == 0) | |
775 | return; | |
776 | ||
9b45f8ec | 777 | parse_rtattr_nested(stats, MACSEC_SA_STATS_ATTR_MAX, attr); |
b26fc590 | 778 | |
d3418638 | 779 | print_stats(prefix, rxsa_stats_names, NUM_MACSEC_SA_STATS_ATTR, stats); |
b26fc590 SD |
780 | } |
781 | ||
782 | static const char *txsa_stats_names[NUM_MACSEC_SA_STATS_ATTR] = { | |
783 | [MACSEC_SA_STATS_ATTR_OUT_PKTS_PROTECTED] = "OutPktsProtected", | |
784 | [MACSEC_SA_STATS_ATTR_OUT_PKTS_ENCRYPTED] = "OutPktsEncrypted", | |
785 | }; | |
786 | ||
787 | static void print_txsa_stats(const char *prefix, struct rtattr *attr) | |
788 | { | |
789 | struct rtattr *stats[MACSEC_SA_STATS_ATTR_MAX + 1]; | |
790 | ||
791 | if (!attr || show_stats == 0) | |
792 | return; | |
793 | ||
9b45f8ec | 794 | parse_rtattr_nested(stats, MACSEC_SA_STATS_ATTR_MAX, attr); |
d3418638 SH |
795 | |
796 | print_stats(prefix, txsa_stats_names, NUM_MACSEC_SA_STATS_ATTR, stats); | |
b26fc590 SD |
797 | } |
798 | ||
799 | static void print_tx_sc(const char *prefix, __u64 sci, __u8 encoding_sa, | |
800 | struct rtattr *txsc_stats, struct rtattr *secy_stats, | |
801 | struct rtattr *sa) | |
802 | { | |
803 | struct rtattr *sa_attr[MACSEC_SA_ATTR_MAX + 1]; | |
804 | struct rtattr *a; | |
805 | int rem; | |
806 | ||
c0b904de SH |
807 | print_string(PRINT_FP, NULL, "%s", prefix); |
808 | print_0xhex(PRINT_ANY, "sci", | |
809 | "TXSC: %016llx", ntohll(sci)); | |
810 | print_uint(PRINT_ANY, "encoding_sa", | |
811 | " on SA %d\n", encoding_sa); | |
812 | ||
b26fc590 SD |
813 | print_secy_stats(prefix, secy_stats); |
814 | print_txsc_stats(prefix, txsc_stats); | |
815 | ||
c0b904de | 816 | open_json_array(PRINT_JSON, "sa_list"); |
b26fc590 SD |
817 | rem = RTA_PAYLOAD(sa); |
818 | for (a = RTA_DATA(sa); RTA_OK(a, rem); a = RTA_NEXT(a, rem)) { | |
b26fc590 SD |
819 | bool state; |
820 | ||
c0b904de | 821 | open_json_object(NULL); |
9b45f8ec | 822 | parse_rtattr_nested(sa_attr, MACSEC_SA_ATTR_MAX, a); |
b26fc590 | 823 | state = rta_getattr_u8(sa_attr[MACSEC_SA_ATTR_ACTIVE]); |
c0b904de SH |
824 | |
825 | print_string(PRINT_FP, NULL, "%s", prefix); | |
826 | print_string(PRINT_FP, NULL, "%s", prefix); | |
827 | print_uint(PRINT_ANY, "an", "%d:", | |
828 | rta_getattr_u8(sa_attr[MACSEC_SA_ATTR_AN])); | |
829 | print_uint(PRINT_ANY, "pn", " PN %u,", | |
830 | rta_getattr_u32(sa_attr[MACSEC_SA_ATTR_PN])); | |
831 | ||
832 | print_bool(PRINT_JSON, "active", NULL, state); | |
833 | print_string(PRINT_FP, NULL, | |
834 | " state %s,", state ? "on" : "off"); | |
835 | print_key(sa_attr[MACSEC_SA_ATTR_KEYID]); | |
836 | ||
b26fc590 | 837 | print_txsa_stats(prefix, sa_attr[MACSEC_SA_ATTR_STATS]); |
c0b904de | 838 | close_json_object(); |
b26fc590 | 839 | } |
c0b904de | 840 | close_json_array(PRINT_JSON, NULL); |
b26fc590 SD |
841 | } |
842 | ||
843 | static const char *rxsc_stats_names[NUM_MACSEC_RXSC_STATS_ATTR] = { | |
844 | [MACSEC_RXSC_STATS_ATTR_IN_OCTETS_VALIDATED] = "InOctetsValidated", | |
845 | [MACSEC_RXSC_STATS_ATTR_IN_OCTETS_DECRYPTED] = "InOctetsDecrypted", | |
846 | [MACSEC_RXSC_STATS_ATTR_IN_PKTS_UNCHECKED] = "InPktsUnchecked", | |
847 | [MACSEC_RXSC_STATS_ATTR_IN_PKTS_DELAYED] = "InPktsDelayed", | |
848 | [MACSEC_RXSC_STATS_ATTR_IN_PKTS_OK] = "InPktsOK", | |
849 | [MACSEC_RXSC_STATS_ATTR_IN_PKTS_INVALID] = "InPktsInvalid", | |
850 | [MACSEC_RXSC_STATS_ATTR_IN_PKTS_LATE] = "InPktsLate", | |
851 | [MACSEC_RXSC_STATS_ATTR_IN_PKTS_NOT_VALID] = "InPktsNotValid", | |
852 | [MACSEC_RXSC_STATS_ATTR_IN_PKTS_NOT_USING_SA] = "InPktsNotUsingSA", | |
853 | [MACSEC_RXSC_STATS_ATTR_IN_PKTS_UNUSED_SA] = "InPktsUnusedSA", | |
854 | }; | |
855 | ||
856 | static void print_rxsc_stats(const char *prefix, struct rtattr *attr) | |
857 | { | |
858 | struct rtattr *stats[MACSEC_RXSC_STATS_ATTR_MAX + 1]; | |
b26fc590 SD |
859 | |
860 | if (!attr || show_stats == 0) | |
861 | return; | |
862 | ||
9b45f8ec | 863 | parse_rtattr_nested(stats, MACSEC_RXSC_STATS_ATTR_MAX, attr); |
b26fc590 | 864 | |
d3418638 SH |
865 | print_stats(prefix, rxsc_stats_names, |
866 | NUM_MACSEC_RXSC_STATS_ATTR, stats); | |
b26fc590 SD |
867 | } |
868 | ||
c0b904de | 869 | static void print_rx_sc(const char *prefix, __be64 sci, __u8 active, |
b26fc590 SD |
870 | struct rtattr *rxsc_stats, struct rtattr *sa) |
871 | { | |
872 | struct rtattr *sa_attr[MACSEC_SA_ATTR_MAX + 1]; | |
873 | struct rtattr *a; | |
874 | int rem; | |
875 | ||
c0b904de SH |
876 | print_string(PRINT_FP, NULL, "%s", prefix); |
877 | print_0xhex(PRINT_ANY, "sci", | |
878 | "RXSC: %016llx,", ntohll(sci)); | |
879 | print_bool(PRINT_JSON, "active", NULL, active); | |
880 | print_string(PRINT_FP, NULL, | |
881 | " state %s\n", active ? "on" : "off"); | |
b26fc590 SD |
882 | print_rxsc_stats(prefix, rxsc_stats); |
883 | ||
c0b904de | 884 | open_json_array(PRINT_JSON, "sa_list"); |
b26fc590 SD |
885 | rem = RTA_PAYLOAD(sa); |
886 | for (a = RTA_DATA(sa); RTA_OK(a, rem); a = RTA_NEXT(a, rem)) { | |
b26fc590 SD |
887 | bool state; |
888 | ||
c0b904de | 889 | open_json_object(NULL); |
9b45f8ec | 890 | parse_rtattr_nested(sa_attr, MACSEC_SA_ATTR_MAX, a); |
b26fc590 | 891 | state = rta_getattr_u8(sa_attr[MACSEC_SA_ATTR_ACTIVE]); |
c0b904de SH |
892 | |
893 | print_string(PRINT_FP, NULL, "%s", prefix); | |
894 | print_string(PRINT_FP, NULL, "%s", prefix); | |
895 | print_uint(PRINT_ANY, "an", "%u:", | |
896 | rta_getattr_u8(sa_attr[MACSEC_SA_ATTR_AN])); | |
897 | print_uint(PRINT_ANY, "pn", " PN %u,", | |
898 | rta_getattr_u32(sa_attr[MACSEC_SA_ATTR_PN])); | |
899 | ||
900 | print_bool(PRINT_JSON, "active", NULL, state); | |
901 | print_string(PRINT_FP, NULL, " state %s,", | |
902 | state ? "on" : "off"); | |
903 | ||
904 | print_key(sa_attr[MACSEC_SA_ATTR_KEYID]); | |
905 | ||
b26fc590 | 906 | print_rxsa_stats(prefix, sa_attr[MACSEC_SA_ATTR_STATS]); |
c0b904de SH |
907 | close_json_object(); |
908 | } | |
909 | close_json_array(PRINT_JSON, NULL); | |
910 | } | |
911 | ||
912 | static void print_rxsc_list(struct rtattr *sc) | |
913 | { | |
914 | int rem = RTA_PAYLOAD(sc); | |
915 | struct rtattr *c; | |
916 | ||
917 | open_json_array(PRINT_JSON, "rx_sc"); | |
918 | for (c = RTA_DATA(sc); RTA_OK(c, rem); c = RTA_NEXT(c, rem)) { | |
919 | struct rtattr *sc_attr[MACSEC_RXSC_ATTR_MAX + 1]; | |
920 | ||
921 | open_json_object(NULL); | |
922 | ||
9b45f8ec | 923 | parse_rtattr_nested(sc_attr, MACSEC_RXSC_ATTR_MAX, c); |
c0b904de SH |
924 | print_rx_sc(" ", |
925 | rta_getattr_u64(sc_attr[MACSEC_RXSC_ATTR_SCI]), | |
926 | rta_getattr_u32(sc_attr[MACSEC_RXSC_ATTR_ACTIVE]), | |
927 | sc_attr[MACSEC_RXSC_ATTR_STATS], | |
928 | sc_attr[MACSEC_RXSC_ATTR_SA_LIST]); | |
929 | close_json_object(); | |
b26fc590 | 930 | } |
c0b904de | 931 | close_json_array(PRINT_JSON, NULL); |
b26fc590 SD |
932 | } |
933 | ||
cd554f2c | 934 | static int process(struct nlmsghdr *n, void *arg) |
b26fc590 SD |
935 | { |
936 | struct genlmsghdr *ghdr; | |
c0b904de | 937 | struct rtattr *attrs[MACSEC_ATTR_MAX + 1]; |
b26fc590 SD |
938 | struct rtattr *attrs_secy[MACSEC_SECY_ATTR_MAX + 1]; |
939 | int len = n->nlmsg_len; | |
940 | int ifindex; | |
941 | __u64 sci; | |
942 | __u8 encoding_sa; | |
b26fc590 SD |
943 | |
944 | if (n->nlmsg_type != genl_family) | |
945 | return -1; | |
946 | ||
947 | len -= NLMSG_LENGTH(GENL_HDRLEN); | |
948 | if (len < 0) | |
949 | return -1; | |
950 | ||
951 | ghdr = NLMSG_DATA(n); | |
952 | if (ghdr->cmd != MACSEC_CMD_GET_TXSC) | |
953 | return 0; | |
954 | ||
955 | parse_rtattr(attrs, MACSEC_ATTR_MAX, (void *) ghdr + GENL_HDRLEN, len); | |
956 | if (!validate_dump(attrs)) { | |
c0b904de | 957 | fprintf(stderr, "incomplete dump message\n"); |
b26fc590 SD |
958 | return -1; |
959 | } | |
960 | ||
961 | ifindex = rta_getattr_u32(attrs[MACSEC_ATTR_IFINDEX]); | |
9b45f8ec | 962 | parse_rtattr_nested(attrs_secy, MACSEC_SECY_ATTR_MAX, |
b26fc590 SD |
963 | attrs[MACSEC_ATTR_SECY]); |
964 | ||
965 | if (!validate_secy_dump(attrs_secy)) { | |
c0b904de | 966 | fprintf(stderr, "incomplete dump message\n"); |
b26fc590 SD |
967 | return -1; |
968 | } | |
969 | ||
970 | sci = rta_getattr_u64(attrs_secy[MACSEC_SECY_ATTR_SCI]); | |
971 | encoding_sa = rta_getattr_u8(attrs_secy[MACSEC_SECY_ATTR_ENCODING_SA]); | |
972 | ||
973 | if (filter.ifindex && ifindex != filter.ifindex) | |
974 | return 0; | |
975 | ||
976 | if (filter.sci && sci != filter.sci) | |
977 | return 0; | |
978 | ||
c0b904de SH |
979 | open_json_object(NULL); |
980 | print_uint(PRINT_ANY, "ifindex", "%u: ", ifindex); | |
981 | print_color_string(PRINT_ANY, COLOR_IFNAME, "ifname", | |
982 | "%s: ", ll_index_to_name(ifindex)); | |
983 | ||
984 | print_attrs(attrs_secy); | |
b26fc590 SD |
985 | |
986 | print_tx_sc(" ", sci, encoding_sa, | |
987 | attrs[MACSEC_ATTR_TXSC_STATS], | |
988 | attrs[MACSEC_ATTR_SECY_STATS], | |
989 | attrs[MACSEC_ATTR_TXSA_LIST]); | |
990 | ||
c0b904de SH |
991 | if (attrs[MACSEC_ATTR_RXSC_LIST]) |
992 | print_rxsc_list(attrs[MACSEC_ATTR_RXSC_LIST]); | |
b26fc590 | 993 | |
c0b904de | 994 | close_json_object(); |
b26fc590 SD |
995 | |
996 | return 0; | |
997 | } | |
998 | ||
999 | static int do_dump(int ifindex) | |
1000 | { | |
1001 | MACSEC_GENL_REQ(req, MACSEC_BUFLEN, MACSEC_CMD_GET_TXSC, | |
1002 | NLM_F_REQUEST | NLM_F_DUMP); | |
1003 | ||
1004 | memset(&filter, 0, sizeof(filter)); | |
1005 | filter.ifindex = ifindex; | |
1006 | ||
1007 | req.n.nlmsg_seq = genl_rth.dump = ++genl_rth.seq; | |
1008 | if (rtnl_send(&genl_rth, &req, req.n.nlmsg_len) < 0) { | |
1009 | perror("Failed to send dump request"); | |
1010 | exit(1); | |
1011 | } | |
1012 | ||
c0b904de | 1013 | new_json_obj(json); |
b26fc590 | 1014 | if (rtnl_dump_filter(&genl_rth, process, stdout) < 0) { |
c0b904de | 1015 | delete_json_obj(); |
b26fc590 SD |
1016 | fprintf(stderr, "Dump terminated\n"); |
1017 | exit(1); | |
1018 | } | |
c0b904de | 1019 | delete_json_obj(); |
b26fc590 SD |
1020 | |
1021 | return 0; | |
1022 | } | |
1023 | ||
1024 | static int do_show(int argc, char **argv) | |
1025 | { | |
1026 | int ifindex; | |
1027 | ||
1028 | if (argc == 0) | |
1029 | return do_dump(0); | |
1030 | ||
1031 | ifindex = ll_name_to_index(*argv); | |
1032 | if (ifindex == 0) { | |
1033 | fprintf(stderr, "Device \"%s\" does not exist.\n", *argv); | |
1034 | return -1; | |
1035 | } | |
1036 | ||
1037 | argc--, argv++; | |
1038 | if (argc == 0) | |
1039 | return do_dump(ifindex); | |
1040 | ||
1041 | ipmacsec_usage(); | |
1042 | return -1; | |
1043 | } | |
1044 | ||
1045 | int do_ipmacsec(int argc, char **argv) | |
1046 | { | |
b26fc590 SD |
1047 | if (argc < 1) |
1048 | ipmacsec_usage(); | |
1049 | ||
1050 | if (matches(*argv, "help") == 0) | |
1051 | ipmacsec_usage(); | |
1052 | ||
688f9aa4 SD |
1053 | if (genl_init_handle(&genl_rth, MACSEC_GENL_NAME, &genl_family)) |
1054 | exit(1); | |
1055 | ||
b26fc590 SD |
1056 | if (matches(*argv, "show") == 0) |
1057 | return do_show(argc-1, argv+1); | |
1058 | ||
1059 | if (matches(*argv, "add") == 0) | |
1060 | return do_modify(CMD_ADD, argc-1, argv+1); | |
1061 | if (matches(*argv, "set") == 0) | |
1062 | return do_modify(CMD_UPD, argc-1, argv+1); | |
1063 | if (matches(*argv, "delete") == 0) | |
1064 | return do_modify(CMD_DEL, argc-1, argv+1); | |
1065 | ||
1066 | fprintf(stderr, "Command \"%s\" is unknown, try \"ip macsec help\".\n", | |
1067 | *argv); | |
1068 | exit(-1); | |
1069 | } | |
1070 | ||
1071 | /* device creation */ | |
1072 | static void macsec_print_opt(struct link_util *lu, FILE *f, struct rtattr *tb[]) | |
1073 | { | |
1074 | if (!tb) | |
1075 | return; | |
1076 | ||
1077 | if (tb[IFLA_MACSEC_SCI]) { | |
c3398346 JF |
1078 | if (is_json_context()) { |
1079 | SPRINT_BUF(b1); | |
1080 | ||
1081 | snprintf(b1, sizeof(b1), "%016llx", | |
1082 | ntohll(rta_getattr_u64(tb[IFLA_MACSEC_SCI]))); | |
1083 | print_string(PRINT_JSON, "sci", NULL, b1); | |
1084 | } else { | |
1085 | fprintf(f, "sci %016llx ", | |
1086 | ntohll(rta_getattr_u64(tb[IFLA_MACSEC_SCI]))); | |
1087 | } | |
b26fc590 SD |
1088 | } |
1089 | ||
c0b904de | 1090 | print_flag(tb, "protect", IFLA_MACSEC_PROTECT); |
b26fc590 SD |
1091 | |
1092 | if (tb[IFLA_MACSEC_CIPHER_SUITE]) { | |
c0b904de SH |
1093 | __u64 csid |
1094 | = rta_getattr_u64(tb[IFLA_MACSEC_CIPHER_SUITE]); | |
b26fc590 | 1095 | |
c3398346 JF |
1096 | print_string(PRINT_ANY, |
1097 | "cipher_suite", | |
1098 | "cipher %s ", | |
1099 | cs_id_to_name(csid)); | |
b26fc590 SD |
1100 | } |
1101 | ||
1102 | if (tb[IFLA_MACSEC_ICV_LEN]) { | |
c3398346 JF |
1103 | if (is_json_context()) { |
1104 | char b2[4]; | |
1105 | ||
1106 | snprintf(b2, sizeof(b2), "%hhu", | |
1107 | rta_getattr_u8(tb[IFLA_MACSEC_ICV_LEN])); | |
1108 | print_uint(PRINT_JSON, "icv_len", NULL, atoi(b2)); | |
1109 | } else { | |
1110 | fprintf(f, "icvlen %hhu ", | |
1111 | rta_getattr_u8(tb[IFLA_MACSEC_ICV_LEN])); | |
1112 | } | |
b26fc590 SD |
1113 | } |
1114 | ||
1115 | if (tb[IFLA_MACSEC_ENCODING_SA]) { | |
c3398346 JF |
1116 | if (is_json_context()) { |
1117 | char b2[4]; | |
1118 | ||
1119 | snprintf(b2, sizeof(b2), "%hhu", | |
1120 | rta_getattr_u8(tb[IFLA_MACSEC_ENCODING_SA])); | |
1121 | print_uint(PRINT_JSON, "encoding_sa", NULL, atoi(b2)); | |
1122 | } else { | |
1123 | fprintf(f, "encodingsa %hhu ", | |
1124 | rta_getattr_u8(tb[IFLA_MACSEC_ENCODING_SA])); | |
1125 | } | |
b26fc590 SD |
1126 | } |
1127 | ||
1128 | if (tb[IFLA_MACSEC_VALIDATION]) { | |
1129 | __u8 val = rta_getattr_u8(tb[IFLA_MACSEC_VALIDATION]); | |
1130 | ||
c3398346 JF |
1131 | print_string(PRINT_ANY, |
1132 | "validation", | |
1133 | "validate %s ", | |
c2f260f4 | 1134 | validate_str[val]); |
c3398346 JF |
1135 | } |
1136 | ||
1137 | const char *inc_sci, *es, *replay; | |
1138 | ||
1139 | if (is_json_context()) { | |
1140 | inc_sci = "inc_sci"; | |
1141 | replay = "replay_protect"; | |
1142 | es = "es"; | |
1143 | } else { | |
1144 | inc_sci = "send_sci"; | |
1145 | es = "end_station"; | |
1146 | replay = "replay"; | |
b26fc590 SD |
1147 | } |
1148 | ||
c0b904de SH |
1149 | print_flag(tb, "encrypt", IFLA_MACSEC_ENCRYPT); |
1150 | print_flag(tb, inc_sci, IFLA_MACSEC_INC_SCI); | |
1151 | print_flag(tb, es, IFLA_MACSEC_ES); | |
1152 | print_flag(tb, "scb", IFLA_MACSEC_SCB); | |
1153 | print_flag(tb, replay, IFLA_MACSEC_REPLAY_PROTECT); | |
b26fc590 | 1154 | |
c3398346 JF |
1155 | if (tb[IFLA_MACSEC_WINDOW]) |
1156 | print_int(PRINT_ANY, | |
1157 | "window", | |
1158 | "window %d ", | |
1159 | rta_getattr_u32(tb[IFLA_MACSEC_WINDOW])); | |
b26fc590 SD |
1160 | } |
1161 | ||
b26fc590 SD |
1162 | static bool check_txsc_flags(bool es, bool scb, bool sci) |
1163 | { | |
1164 | if (sci && (es || scb)) | |
1165 | return false; | |
1166 | if (es && scb) | |
1167 | return false; | |
1168 | return true; | |
1169 | } | |
1170 | ||
1171 | static void usage(FILE *f) | |
1172 | { | |
1173 | fprintf(f, | |
5898bd66 | 1174 | "Usage: ... macsec [ [ address <lladdr> ] port { 1..2^16-1 } | sci <u64> ]\n" |
89bb6e67 DC |
1175 | " [ cipher { default | gcm-aes-128 } ]\n" |
1176 | " [ icvlen { 8..16 } ]\n" | |
b26fc590 SD |
1177 | " [ encrypt { on | off } ]\n" |
1178 | " [ send_sci { on | off } ]\n" | |
1179 | " [ end_station { on | off } ]\n" | |
1180 | " [ scb { on | off } ]\n" | |
1181 | " [ protect { on | off } ]\n" | |
1182 | " [ replay { on | off} window { 0..2^32-1 } ]\n" | |
1183 | " [ validate { strict | check | disabled } ]\n" | |
1184 | " [ encodingsa { 0..3 } ]\n" | |
1185 | ); | |
b26fc590 SD |
1186 | } |
1187 | ||
1188 | static int macsec_parse_opt(struct link_util *lu, int argc, char **argv, | |
28254695 | 1189 | struct nlmsghdr *n) |
b26fc590 SD |
1190 | { |
1191 | int ret; | |
1192 | __u8 encoding_sa = 0xff; | |
1193 | __u32 window = -1; | |
1194 | struct cipher_args cipher = {0}; | |
1195 | enum macsec_validation_type validate; | |
1196 | bool es = false, scb = false, send_sci = false; | |
1197 | int replay_protect = -1; | |
1198 | struct sci sci = { 0 }; | |
1199 | ||
1200 | ret = get_sci_portaddr(&sci, &argc, &argv, true, true); | |
1201 | if (ret < 0) { | |
1202 | fprintf(stderr, "expected sci\n"); | |
1203 | return -1; | |
1204 | } | |
1205 | ||
1206 | if (ret > 0) { | |
1207 | if (sci.sci) | |
28254695 | 1208 | addattr_l(n, MACSEC_BUFLEN, IFLA_MACSEC_SCI, |
b26fc590 SD |
1209 | &sci.sci, sizeof(sci.sci)); |
1210 | else | |
28254695 | 1211 | addattr_l(n, MACSEC_BUFLEN, IFLA_MACSEC_PORT, |
b26fc590 SD |
1212 | &sci.port, sizeof(sci.port)); |
1213 | } | |
1214 | ||
1215 | while (argc > 0) { | |
1216 | if (strcmp(*argv, "cipher") == 0) { | |
89bb6e67 | 1217 | NEXT_ARG(); |
b26fc590 | 1218 | if (cipher.id) |
89bb6e67 DC |
1219 | duparg("cipher", *argv); |
1220 | if (strcmp(*argv, "default") == 0 || | |
1221 | strcmp(*argv, "gcm-aes-128") == 0 || | |
1222 | strcmp(*argv, "GCM-AES-128") == 0) | |
1223 | cipher.id = MACSEC_DEFAULT_CIPHER_ID; | |
1224 | else | |
1225 | invarg("expected: default or gcm-aes-128", | |
1226 | *argv); | |
1227 | } else if (strcmp(*argv, "icvlen") == 0) { | |
b26fc590 | 1228 | NEXT_ARG(); |
89bb6e67 DC |
1229 | if (cipher.icv_len) |
1230 | duparg("icvlen", *argv); | |
1231 | get_icvlen(&cipher.icv_len, *argv); | |
b26fc590 SD |
1232 | } else if (strcmp(*argv, "encrypt") == 0) { |
1233 | NEXT_ARG(); | |
1234 | int i; | |
1235 | ||
1236 | ret = one_of("encrypt", *argv, values_on_off, | |
1237 | ARRAY_SIZE(values_on_off), &i); | |
1238 | if (ret != 0) | |
1239 | return ret; | |
28254695 | 1240 | addattr8(n, MACSEC_BUFLEN, IFLA_MACSEC_ENCRYPT, i); |
b26fc590 SD |
1241 | } else if (strcmp(*argv, "send_sci") == 0) { |
1242 | NEXT_ARG(); | |
1243 | int i; | |
1244 | ||
1245 | ret = one_of("send_sci", *argv, values_on_off, | |
1246 | ARRAY_SIZE(values_on_off), &i); | |
1247 | if (ret != 0) | |
1248 | return ret; | |
1249 | send_sci = i; | |
28254695 | 1250 | addattr8(n, MACSEC_BUFLEN, |
b26fc590 SD |
1251 | IFLA_MACSEC_INC_SCI, send_sci); |
1252 | } else if (strcmp(*argv, "end_station") == 0) { | |
1253 | NEXT_ARG(); | |
1254 | int i; | |
1255 | ||
1256 | ret = one_of("end_station", *argv, values_on_off, | |
1257 | ARRAY_SIZE(values_on_off), &i); | |
1258 | if (ret != 0) | |
1259 | return ret; | |
1260 | es = i; | |
28254695 | 1261 | addattr8(n, MACSEC_BUFLEN, IFLA_MACSEC_ES, es); |
b26fc590 SD |
1262 | } else if (strcmp(*argv, "scb") == 0) { |
1263 | NEXT_ARG(); | |
1264 | int i; | |
1265 | ||
1266 | ret = one_of("scb", *argv, values_on_off, | |
1267 | ARRAY_SIZE(values_on_off), &i); | |
1268 | if (ret != 0) | |
1269 | return ret; | |
1270 | scb = i; | |
28254695 | 1271 | addattr8(n, MACSEC_BUFLEN, IFLA_MACSEC_SCB, scb); |
b26fc590 SD |
1272 | } else if (strcmp(*argv, "protect") == 0) { |
1273 | NEXT_ARG(); | |
1274 | int i; | |
1275 | ||
1276 | ret = one_of("protect", *argv, values_on_off, | |
1277 | ARRAY_SIZE(values_on_off), &i); | |
1278 | if (ret != 0) | |
1279 | return ret; | |
28254695 | 1280 | addattr8(n, MACSEC_BUFLEN, IFLA_MACSEC_PROTECT, i); |
b26fc590 SD |
1281 | } else if (strcmp(*argv, "replay") == 0) { |
1282 | NEXT_ARG(); | |
1283 | int i; | |
1284 | ||
1285 | ret = one_of("replay", *argv, values_on_off, | |
1286 | ARRAY_SIZE(values_on_off), &i); | |
1287 | if (ret != 0) | |
1288 | return ret; | |
1289 | replay_protect = !!i; | |
1290 | } else if (strcmp(*argv, "window") == 0) { | |
1291 | NEXT_ARG(); | |
1292 | ret = get_u32(&window, *argv, 0); | |
1293 | if (ret) | |
1294 | invarg("expected replay window size", *argv); | |
1295 | } else if (strcmp(*argv, "validate") == 0) { | |
1296 | NEXT_ARG(); | |
1297 | ret = one_of("validate", *argv, | |
c2f260f4 | 1298 | validate_str, ARRAY_SIZE(validate_str), |
b26fc590 SD |
1299 | (int *)&validate); |
1300 | if (ret != 0) | |
1301 | return ret; | |
28254695 | 1302 | addattr8(n, MACSEC_BUFLEN, |
b26fc590 SD |
1303 | IFLA_MACSEC_VALIDATION, validate); |
1304 | } else if (strcmp(*argv, "encodingsa") == 0) { | |
1305 | if (encoding_sa != 0xff) | |
1306 | duparg2("encodingsa", "encodingsa"); | |
1307 | NEXT_ARG(); | |
1308 | ret = get_an(&encoding_sa, *argv); | |
1309 | if (ret) | |
1310 | invarg("expected an { 0..3 }", *argv); | |
1311 | } else { | |
1312 | fprintf(stderr, "macsec: unknown command \"%s\"?\n", | |
1313 | *argv); | |
1314 | usage(stderr); | |
1315 | return -1; | |
1316 | } | |
1317 | ||
1318 | argv++; argc--; | |
1319 | } | |
1320 | ||
1321 | if (!check_txsc_flags(es, scb, send_sci)) { | |
c2f260f4 SH |
1322 | fprintf(stderr, |
1323 | "invalid combination of send_sci/end_station/scb\n"); | |
b26fc590 SD |
1324 | return -1; |
1325 | } | |
1326 | ||
1327 | if (window != -1 && replay_protect == -1) { | |
1328 | fprintf(stderr, | |
1329 | "replay window set, but replay protection not enabled. did you mean 'replay on window %u'?\n", | |
1330 | window); | |
1331 | return -1; | |
1332 | } else if (window == -1 && replay_protect == 1) { | |
1333 | fprintf(stderr, | |
1334 | "replay protection enabled, but no window set. did you mean 'replay on window VALUE'?\n"); | |
1335 | return -1; | |
1336 | } | |
1337 | ||
89bb6e67 | 1338 | if (cipher.id) |
28254695 | 1339 | addattr_l(n, MACSEC_BUFLEN, IFLA_MACSEC_CIPHER_SUITE, |
b26fc590 | 1340 | &cipher.id, sizeof(cipher.id)); |
89bb6e67 | 1341 | if (cipher.icv_len) |
28254695 | 1342 | addattr_l(n, MACSEC_BUFLEN, IFLA_MACSEC_ICV_LEN, |
b26fc590 | 1343 | &cipher.icv_len, sizeof(cipher.icv_len)); |
b26fc590 SD |
1344 | |
1345 | if (replay_protect != -1) { | |
28254695 SP |
1346 | addattr32(n, MACSEC_BUFLEN, IFLA_MACSEC_WINDOW, window); |
1347 | addattr8(n, MACSEC_BUFLEN, IFLA_MACSEC_REPLAY_PROTECT, | |
b26fc590 SD |
1348 | replay_protect); |
1349 | } | |
1350 | ||
1351 | if (encoding_sa != 0xff) { | |
28254695 | 1352 | addattr_l(n, MACSEC_BUFLEN, IFLA_MACSEC_ENCODING_SA, |
b26fc590 SD |
1353 | &encoding_sa, sizeof(encoding_sa)); |
1354 | } | |
1355 | ||
1356 | return 0; | |
1357 | } | |
1358 | ||
1359 | static void macsec_print_help(struct link_util *lu, int argc, char **argv, | |
1360 | FILE *f) | |
1361 | { | |
1362 | usage(f); | |
1363 | } | |
1364 | ||
1365 | struct link_util macsec_link_util = { | |
1366 | .id = "macsec", | |
1367 | .maxattr = IFLA_MACSEC_MAX, | |
1368 | .parse_opt = macsec_parse_opt, | |
1369 | .print_help = macsec_print_help, | |
1370 | .print_opt = macsec_print_opt, | |
b26fc590 | 1371 | }; |