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1// SPDX-License-Identifier: GPL-2.0+
2/*
3 * Author: Justin Iurman (justin.iurman@uliege.be)
4 *
5 * IOAM tester for IPv6, see ioam6.sh for details on each test case.
6 */
7#include <arpa/inet.h>
8#include <errno.h>
9#include <limits.h>
10#include <linux/const.h>
11#include <linux/if_ether.h>
12#include <linux/ioam6.h>
13#include <linux/ipv6.h>
14#include <stdbool.h>
15#include <stdlib.h>
16#include <string.h>
17#include <unistd.h>
18
19struct ioam_config {
20 __u32 id;
21 __u64 wide;
22 __u16 ingr_id;
23 __u16 egr_id;
24 __u32 ingr_wide;
25 __u32 egr_wide;
26 __u32 ns_data;
27 __u64 ns_wide;
28 __u32 sc_id;
29 __u8 hlim;
30 char *sc_data;
31};
32
33/*
34 * Be careful if you modify structs below - everything MUST be kept synchronized
35 * with configurations inside ioam6.sh and always reflect the same.
36 */
37
38static struct ioam_config node1 = {
39 .id = 1,
40 .wide = 11111111,
41 .ingr_id = 0xffff, /* default value */
42 .egr_id = 101,
43 .ingr_wide = 0xffffffff, /* default value */
44 .egr_wide = 101101,
45 .ns_data = 0xdeadbeef,
46 .ns_wide = 0xcafec0caf00dc0de,
47 .sc_id = 777,
48 .sc_data = "something that will be 4n-aligned",
49 .hlim = 64,
50};
51
52static struct ioam_config node2 = {
53 .id = 2,
54 .wide = 22222222,
55 .ingr_id = 201,
56 .egr_id = 202,
57 .ingr_wide = 201201,
58 .egr_wide = 202202,
59 .ns_data = 0xffffffff, /* default value */
60 .ns_wide = 0xffffffffffffffff, /* default value */
61 .sc_id = 0xffffff, /* default value */
62 .sc_data = NULL,
63 .hlim = 63,
64};
65
66enum {
67 /**********
68 * OUTPUT *
69 **********/
70 __TEST_OUT_MIN,
71
72 TEST_OUT_UNDEF_NS,
73 TEST_OUT_NO_ROOM,
74 TEST_OUT_NO_ROOM_OSS,
75 TEST_OUT_BIT0,
76 TEST_OUT_BIT1,
77 TEST_OUT_BIT2,
78 TEST_OUT_BIT3,
79 TEST_OUT_BIT4,
80 TEST_OUT_BIT5,
81 TEST_OUT_BIT6,
82 TEST_OUT_BIT7,
83 TEST_OUT_BIT8,
84 TEST_OUT_BIT9,
85 TEST_OUT_BIT10,
86 TEST_OUT_BIT11,
87 TEST_OUT_BIT22,
88 TEST_OUT_SIZE4,
89 TEST_OUT_SIZE8,
90 TEST_OUT_SIZE12,
91 TEST_OUT_SIZE16,
92 TEST_OUT_SIZE20,
93 TEST_OUT_SIZE24,
94 TEST_OUT_SIZE28,
95 TEST_OUT_SIZE32,
96 TEST_OUT_SIZE36,
97 TEST_OUT_SIZE40,
98 TEST_OUT_SIZE44,
99 TEST_OUT_SIZE48,
100 TEST_OUT_SIZE52,
101 TEST_OUT_SIZE56,
102 TEST_OUT_SIZE60,
103 TEST_OUT_SIZE64,
104 TEST_OUT_SIZE68,
105 TEST_OUT_SIZE72,
106 TEST_OUT_SIZE76,
107 TEST_OUT_SIZE80,
108 TEST_OUT_SIZE84,
109 TEST_OUT_SIZE88,
110 TEST_OUT_SIZE92,
111 TEST_OUT_SIZE96,
112 TEST_OUT_SIZE100,
113 TEST_OUT_SIZE104,
114 TEST_OUT_SIZE108,
115 TEST_OUT_SIZE112,
116 TEST_OUT_SIZE116,
117 TEST_OUT_SIZE120,
118 TEST_OUT_SIZE124,
119 TEST_OUT_SIZE128,
120 TEST_OUT_SIZE132,
121 TEST_OUT_SIZE136,
122 TEST_OUT_SIZE140,
123 TEST_OUT_SIZE144,
124 TEST_OUT_SIZE148,
125 TEST_OUT_SIZE152,
126 TEST_OUT_SIZE156,
127 TEST_OUT_SIZE160,
128 TEST_OUT_SIZE164,
129 TEST_OUT_SIZE168,
130 TEST_OUT_SIZE172,
131 TEST_OUT_SIZE176,
132 TEST_OUT_SIZE180,
133 TEST_OUT_SIZE184,
134 TEST_OUT_SIZE188,
135 TEST_OUT_SIZE192,
136 TEST_OUT_SIZE196,
137 TEST_OUT_SIZE200,
138 TEST_OUT_SIZE204,
139 TEST_OUT_SIZE208,
140 TEST_OUT_SIZE212,
141 TEST_OUT_SIZE216,
142 TEST_OUT_SIZE220,
143 TEST_OUT_SIZE224,
144 TEST_OUT_SIZE228,
145 TEST_OUT_SIZE232,
146 TEST_OUT_SIZE236,
147 TEST_OUT_SIZE240,
148 TEST_OUT_SIZE244,
149 TEST_OUT_FULL_SUPP_TRACE,
150
151 __TEST_OUT_MAX,
152
153 /*********
154 * INPUT *
155 *********/
156 __TEST_IN_MIN,
157
158 TEST_IN_UNDEF_NS,
159 TEST_IN_NO_ROOM,
160 TEST_IN_NO_ROOM_OSS,
161 TEST_IN_DISABLED,
162 TEST_IN_OFLAG,
163 TEST_IN_BIT0,
164 TEST_IN_BIT1,
165 TEST_IN_BIT2,
166 TEST_IN_BIT3,
167 TEST_IN_BIT4,
168 TEST_IN_BIT5,
169 TEST_IN_BIT6,
170 TEST_IN_BIT7,
171 TEST_IN_BIT8,
172 TEST_IN_BIT9,
173 TEST_IN_BIT10,
174 TEST_IN_BIT11,
175 TEST_IN_BIT22,
176 TEST_IN_SIZE4,
177 TEST_IN_SIZE8,
178 TEST_IN_SIZE12,
179 TEST_IN_SIZE16,
180 TEST_IN_SIZE20,
181 TEST_IN_SIZE24,
182 TEST_IN_SIZE28,
183 TEST_IN_SIZE32,
184 TEST_IN_SIZE36,
185 TEST_IN_SIZE40,
186 TEST_IN_SIZE44,
187 TEST_IN_SIZE48,
188 TEST_IN_SIZE52,
189 TEST_IN_SIZE56,
190 TEST_IN_SIZE60,
191 TEST_IN_SIZE64,
192 TEST_IN_SIZE68,
193 TEST_IN_SIZE72,
194 TEST_IN_SIZE76,
195 TEST_IN_SIZE80,
196 TEST_IN_SIZE84,
197 TEST_IN_SIZE88,
198 TEST_IN_SIZE92,
199 TEST_IN_SIZE96,
200 TEST_IN_SIZE100,
201 TEST_IN_SIZE104,
202 TEST_IN_SIZE108,
203 TEST_IN_SIZE112,
204 TEST_IN_SIZE116,
205 TEST_IN_SIZE120,
206 TEST_IN_SIZE124,
207 TEST_IN_SIZE128,
208 TEST_IN_SIZE132,
209 TEST_IN_SIZE136,
210 TEST_IN_SIZE140,
211 TEST_IN_SIZE144,
212 TEST_IN_SIZE148,
213 TEST_IN_SIZE152,
214 TEST_IN_SIZE156,
215 TEST_IN_SIZE160,
216 TEST_IN_SIZE164,
217 TEST_IN_SIZE168,
218 TEST_IN_SIZE172,
219 TEST_IN_SIZE176,
220 TEST_IN_SIZE180,
221 TEST_IN_SIZE184,
222 TEST_IN_SIZE188,
223 TEST_IN_SIZE192,
224 TEST_IN_SIZE196,
225 TEST_IN_SIZE200,
226 TEST_IN_SIZE204,
227 TEST_IN_SIZE208,
228 TEST_IN_SIZE212,
229 TEST_IN_SIZE216,
230 TEST_IN_SIZE220,
231 TEST_IN_SIZE224,
232 TEST_IN_SIZE228,
233 TEST_IN_SIZE232,
234 TEST_IN_SIZE236,
235 TEST_IN_SIZE240,
236 TEST_IN_SIZE244,
237 TEST_IN_FULL_SUPP_TRACE,
238
239 __TEST_IN_MAX,
240
241 __TEST_MAX,
242};
243
244static int check_header(int tid, struct ioam6_trace_hdr *trace,
245 __u32 trace_type, __u8 trace_size, __u16 ioam_ns)
246{
247 if (__be16_to_cpu(trace->namespace_id) != ioam_ns ||
248 __be32_to_cpu(trace->type_be32) != (trace_type << 8))
249 return 1;
250
251 switch (tid) {
252 case TEST_OUT_UNDEF_NS:
253 case TEST_IN_UNDEF_NS:
254 case TEST_IN_DISABLED:
255 return trace->overflow == 1 ||
256 trace->nodelen != 1 ||
257 trace->remlen != 1;
258
259 case TEST_OUT_NO_ROOM:
260 case TEST_IN_NO_ROOM:
261 case TEST_IN_OFLAG:
262 return trace->overflow == 0 ||
263 trace->nodelen != 2 ||
264 trace->remlen != 1;
265
266 case TEST_OUT_NO_ROOM_OSS:
267 return trace->overflow == 0 ||
268 trace->nodelen != 0 ||
269 trace->remlen != 1;
270
271 case TEST_IN_NO_ROOM_OSS:
272 case TEST_OUT_BIT22:
273 case TEST_IN_BIT22:
274 return trace->overflow == 1 ||
275 trace->nodelen != 0 ||
276 trace->remlen != 0;
277
278 case TEST_OUT_BIT0:
279 case TEST_IN_BIT0:
280 case TEST_OUT_BIT1:
281 case TEST_IN_BIT1:
282 case TEST_OUT_BIT2:
283 case TEST_IN_BIT2:
284 case TEST_OUT_BIT3:
285 case TEST_IN_BIT3:
286 case TEST_OUT_BIT4:
287 case TEST_IN_BIT4:
288 case TEST_OUT_BIT5:
289 case TEST_IN_BIT5:
290 case TEST_OUT_BIT6:
291 case TEST_IN_BIT6:
292 case TEST_OUT_BIT7:
293 case TEST_IN_BIT7:
294 case TEST_OUT_BIT11:
295 case TEST_IN_BIT11:
296 return trace->overflow == 1 ||
297 trace->nodelen != 1 ||
298 trace->remlen != 0;
299
300 case TEST_OUT_BIT8:
301 case TEST_IN_BIT8:
302 case TEST_OUT_BIT9:
303 case TEST_IN_BIT9:
304 case TEST_OUT_BIT10:
305 case TEST_IN_BIT10:
306 return trace->overflow == 1 ||
307 trace->nodelen != 2 ||
308 trace->remlen != 0;
309
310 case TEST_OUT_SIZE4:
311 case TEST_OUT_SIZE8:
312 case TEST_OUT_SIZE12:
313 case TEST_OUT_SIZE16:
314 case TEST_OUT_SIZE20:
315 case TEST_OUT_SIZE24:
316 case TEST_OUT_SIZE28:
317 case TEST_OUT_SIZE32:
318 case TEST_OUT_SIZE36:
319 case TEST_OUT_SIZE40:
320 case TEST_OUT_SIZE44:
321 case TEST_OUT_SIZE48:
322 case TEST_OUT_SIZE52:
323 case TEST_OUT_SIZE56:
324 case TEST_OUT_SIZE60:
325 case TEST_OUT_SIZE64:
326 case TEST_OUT_SIZE68:
327 case TEST_OUT_SIZE72:
328 case TEST_OUT_SIZE76:
329 case TEST_OUT_SIZE80:
330 case TEST_OUT_SIZE84:
331 case TEST_OUT_SIZE88:
332 case TEST_OUT_SIZE92:
333 case TEST_OUT_SIZE96:
334 case TEST_OUT_SIZE100:
335 case TEST_OUT_SIZE104:
336 case TEST_OUT_SIZE108:
337 case TEST_OUT_SIZE112:
338 case TEST_OUT_SIZE116:
339 case TEST_OUT_SIZE120:
340 case TEST_OUT_SIZE124:
341 case TEST_OUT_SIZE128:
342 case TEST_OUT_SIZE132:
343 case TEST_OUT_SIZE136:
344 case TEST_OUT_SIZE140:
345 case TEST_OUT_SIZE144:
346 case TEST_OUT_SIZE148:
347 case TEST_OUT_SIZE152:
348 case TEST_OUT_SIZE156:
349 case TEST_OUT_SIZE160:
350 case TEST_OUT_SIZE164:
351 case TEST_OUT_SIZE168:
352 case TEST_OUT_SIZE172:
353 case TEST_OUT_SIZE176:
354 case TEST_OUT_SIZE180:
355 case TEST_OUT_SIZE184:
356 case TEST_OUT_SIZE188:
357 case TEST_OUT_SIZE192:
358 case TEST_OUT_SIZE196:
359 case TEST_OUT_SIZE200:
360 case TEST_OUT_SIZE204:
361 case TEST_OUT_SIZE208:
362 case TEST_OUT_SIZE212:
363 case TEST_OUT_SIZE216:
364 case TEST_OUT_SIZE220:
365 case TEST_OUT_SIZE224:
366 case TEST_OUT_SIZE228:
367 case TEST_OUT_SIZE232:
368 case TEST_OUT_SIZE236:
369 case TEST_OUT_SIZE240:
370 case TEST_OUT_SIZE244:
371 return trace->overflow == 1 ||
372 trace->nodelen != 1 ||
373 trace->remlen != trace_size / 4;
374
375 case TEST_IN_SIZE4:
376 case TEST_IN_SIZE8:
377 case TEST_IN_SIZE12:
378 case TEST_IN_SIZE16:
379 case TEST_IN_SIZE20:
380 case TEST_IN_SIZE24:
381 case TEST_IN_SIZE28:
382 case TEST_IN_SIZE32:
383 case TEST_IN_SIZE36:
384 case TEST_IN_SIZE40:
385 case TEST_IN_SIZE44:
386 case TEST_IN_SIZE48:
387 case TEST_IN_SIZE52:
388 case TEST_IN_SIZE56:
389 case TEST_IN_SIZE60:
390 case TEST_IN_SIZE64:
391 case TEST_IN_SIZE68:
392 case TEST_IN_SIZE72:
393 case TEST_IN_SIZE76:
394 case TEST_IN_SIZE80:
395 case TEST_IN_SIZE84:
396 case TEST_IN_SIZE88:
397 case TEST_IN_SIZE92:
398 case TEST_IN_SIZE96:
399 case TEST_IN_SIZE100:
400 case TEST_IN_SIZE104:
401 case TEST_IN_SIZE108:
402 case TEST_IN_SIZE112:
403 case TEST_IN_SIZE116:
404 case TEST_IN_SIZE120:
405 case TEST_IN_SIZE124:
406 case TEST_IN_SIZE128:
407 case TEST_IN_SIZE132:
408 case TEST_IN_SIZE136:
409 case TEST_IN_SIZE140:
410 case TEST_IN_SIZE144:
411 case TEST_IN_SIZE148:
412 case TEST_IN_SIZE152:
413 case TEST_IN_SIZE156:
414 case TEST_IN_SIZE160:
415 case TEST_IN_SIZE164:
416 case TEST_IN_SIZE168:
417 case TEST_IN_SIZE172:
418 case TEST_IN_SIZE176:
419 case TEST_IN_SIZE180:
420 case TEST_IN_SIZE184:
421 case TEST_IN_SIZE188:
422 case TEST_IN_SIZE192:
423 case TEST_IN_SIZE196:
424 case TEST_IN_SIZE200:
425 case TEST_IN_SIZE204:
426 case TEST_IN_SIZE208:
427 case TEST_IN_SIZE212:
428 case TEST_IN_SIZE216:
429 case TEST_IN_SIZE220:
430 case TEST_IN_SIZE224:
431 case TEST_IN_SIZE228:
432 case TEST_IN_SIZE232:
433 case TEST_IN_SIZE236:
434 case TEST_IN_SIZE240:
435 case TEST_IN_SIZE244:
436 return trace->overflow == 1 ||
437 trace->nodelen != 1 ||
438 trace->remlen != (trace_size / 4) - trace->nodelen;
439
440 case TEST_OUT_FULL_SUPP_TRACE:
441 case TEST_IN_FULL_SUPP_TRACE:
442 return trace->overflow == 1 ||
443 trace->nodelen != 15 ||
444 trace->remlen != 0;
445
446 default:
447 break;
448 }
449
450 return 1;
451}
452
453static int check_data(struct ioam6_trace_hdr *trace, __u8 trace_size,
454 const struct ioam_config cnf, bool is_output)
455{
456 unsigned int len, i;
457 __u8 aligned;
458 __u64 raw64;
459 __u32 raw32;
460 __u8 *p;
461
462 if (trace->type.bit12 | trace->type.bit13 | trace->type.bit14 |
463 trace->type.bit15 | trace->type.bit16 | trace->type.bit17 |
464 trace->type.bit18 | trace->type.bit19 | trace->type.bit20 |
465 trace->type.bit21 | trace->type.bit23)
466 return 1;
467
468 for (i = 0; i < trace->remlen * 4; i++) {
469 if (trace->data[i] != 0)
470 return 1;
471 }
472
473 if (trace->remlen * 4 == trace_size)
474 return 0;
475
476 p = trace->data + trace->remlen * 4;
477
478 if (trace->type.bit0) {
479 raw32 = __be32_to_cpu(*((__u32 *)p));
480 if (cnf.hlim != (raw32 >> 24) || cnf.id != (raw32 & 0xffffff))
481 return 1;
482 p += sizeof(__u32);
483 }
484
485 if (trace->type.bit1) {
486 raw32 = __be32_to_cpu(*((__u32 *)p));
487 if (cnf.ingr_id != (raw32 >> 16) ||
488 cnf.egr_id != (raw32 & 0xffff))
489 return 1;
490 p += sizeof(__u32);
491 }
492
493 if (trace->type.bit2) {
494 raw32 = __be32_to_cpu(*((__u32 *)p));
495 if ((is_output && raw32 != 0xffffffff) ||
496 (!is_output && (raw32 == 0 || raw32 == 0xffffffff)))
497 return 1;
498 p += sizeof(__u32);
499 }
500
501 if (trace->type.bit3) {
502 raw32 = __be32_to_cpu(*((__u32 *)p));
503 if ((is_output && raw32 != 0xffffffff) ||
504 (!is_output && (raw32 == 0 || raw32 == 0xffffffff)))
505 return 1;
506 p += sizeof(__u32);
507 }
508
509 if (trace->type.bit4) {
510 if (__be32_to_cpu(*((__u32 *)p)) != 0xffffffff)
511 return 1;
512 p += sizeof(__u32);
513 }
514
515 if (trace->type.bit5) {
516 if (__be32_to_cpu(*((__u32 *)p)) != cnf.ns_data)
517 return 1;
518 p += sizeof(__u32);
519 }
520
521 if (trace->type.bit6) {
522 if (__be32_to_cpu(*((__u32 *)p)) == 0xffffffff)
523 return 1;
524 p += sizeof(__u32);
525 }
526
527 if (trace->type.bit7) {
528 if (__be32_to_cpu(*((__u32 *)p)) != 0xffffffff)
529 return 1;
530 p += sizeof(__u32);
531 }
532
533 if (trace->type.bit8) {
534 raw64 = __be64_to_cpu(*((__u64 *)p));
535 if (cnf.hlim != (raw64 >> 56) ||
536 cnf.wide != (raw64 & 0xffffffffffffff))
537 return 1;
538 p += sizeof(__u64);
539 }
540
541 if (trace->type.bit9) {
542 if (__be32_to_cpu(*((__u32 *)p)) != cnf.ingr_wide)
543 return 1;
544 p += sizeof(__u32);
545
546 if (__be32_to_cpu(*((__u32 *)p)) != cnf.egr_wide)
547 return 1;
548 p += sizeof(__u32);
549 }
550
551 if (trace->type.bit10) {
552 if (__be64_to_cpu(*((__u64 *)p)) != cnf.ns_wide)
553 return 1;
554 p += sizeof(__u64);
555 }
556
557 if (trace->type.bit11) {
558 if (__be32_to_cpu(*((__u32 *)p)) != 0xffffffff)
559 return 1;
560 p += sizeof(__u32);
561 }
562
563 if (trace->type.bit22) {
564 len = cnf.sc_data ? strlen(cnf.sc_data) : 0;
565 aligned = cnf.sc_data ? __ALIGN_KERNEL(len, 4) : 0;
566
567 raw32 = __be32_to_cpu(*((__u32 *)p));
568 if (aligned != (raw32 >> 24) * 4 ||
569 cnf.sc_id != (raw32 & 0xffffff))
570 return 1;
571 p += sizeof(__u32);
572
573 if (cnf.sc_data) {
574 if (strncmp((char *)p, cnf.sc_data, len))
575 return 1;
576
577 p += len;
578 aligned -= len;
579
580 while (aligned--) {
581 if (*p != '\0')
582 return 1;
583 p += sizeof(__u8);
584 }
585 }
586 }
587
588 return 0;
589}
590
591static int check_ioam_trace(int tid, struct ioam6_trace_hdr *trace,
592 __u32 trace_type, __u8 trace_size, __u16 ioam_ns)
593{
594 if (check_header(tid, trace, trace_type, trace_size, ioam_ns))
595 return 1;
596
597 if (tid > __TEST_OUT_MIN && tid < __TEST_OUT_MAX)
598 return check_data(trace, trace_size, node1, true);
599
600 if (tid > __TEST_IN_MIN && tid < __TEST_IN_MAX)
601 return check_data(trace, trace_size, node2, false);
602
603 return 1;
604}
605
606static int str2id(const char *tname)
607{
608 if (!strcmp("output_undef_ns", tname))
609 return TEST_OUT_UNDEF_NS;
610 if (!strcmp("output_no_room", tname))
611 return TEST_OUT_NO_ROOM;
612 if (!strcmp("output_no_room_oss", tname))
613 return TEST_OUT_NO_ROOM_OSS;
614 if (!strcmp("output_bit0", tname))
615 return TEST_OUT_BIT0;
616 if (!strcmp("output_bit1", tname))
617 return TEST_OUT_BIT1;
618 if (!strcmp("output_bit2", tname))
619 return TEST_OUT_BIT2;
620 if (!strcmp("output_bit3", tname))
621 return TEST_OUT_BIT3;
622 if (!strcmp("output_bit4", tname))
623 return TEST_OUT_BIT4;
624 if (!strcmp("output_bit5", tname))
625 return TEST_OUT_BIT5;
626 if (!strcmp("output_bit6", tname))
627 return TEST_OUT_BIT6;
628 if (!strcmp("output_bit7", tname))
629 return TEST_OUT_BIT7;
630 if (!strcmp("output_bit8", tname))
631 return TEST_OUT_BIT8;
632 if (!strcmp("output_bit9", tname))
633 return TEST_OUT_BIT9;
634 if (!strcmp("output_bit10", tname))
635 return TEST_OUT_BIT10;
636 if (!strcmp("output_bit11", tname))
637 return TEST_OUT_BIT11;
638 if (!strcmp("output_bit22", tname))
639 return TEST_OUT_BIT22;
640 if (!strcmp("output_size4", tname))
641 return TEST_OUT_SIZE4;
642 if (!strcmp("output_size8", tname))
643 return TEST_OUT_SIZE8;
644 if (!strcmp("output_size12", tname))
645 return TEST_OUT_SIZE12;
646 if (!strcmp("output_size16", tname))
647 return TEST_OUT_SIZE16;
648 if (!strcmp("output_size20", tname))
649 return TEST_OUT_SIZE20;
650 if (!strcmp("output_size24", tname))
651 return TEST_OUT_SIZE24;
652 if (!strcmp("output_size28", tname))
653 return TEST_OUT_SIZE28;
654 if (!strcmp("output_size32", tname))
655 return TEST_OUT_SIZE32;
656 if (!strcmp("output_size36", tname))
657 return TEST_OUT_SIZE36;
658 if (!strcmp("output_size40", tname))
659 return TEST_OUT_SIZE40;
660 if (!strcmp("output_size44", tname))
661 return TEST_OUT_SIZE44;
662 if (!strcmp("output_size48", tname))
663 return TEST_OUT_SIZE48;
664 if (!strcmp("output_size52", tname))
665 return TEST_OUT_SIZE52;
666 if (!strcmp("output_size56", tname))
667 return TEST_OUT_SIZE56;
668 if (!strcmp("output_size60", tname))
669 return TEST_OUT_SIZE60;
670 if (!strcmp("output_size64", tname))
671 return TEST_OUT_SIZE64;
672 if (!strcmp("output_size68", tname))
673 return TEST_OUT_SIZE68;
674 if (!strcmp("output_size72", tname))
675 return TEST_OUT_SIZE72;
676 if (!strcmp("output_size76", tname))
677 return TEST_OUT_SIZE76;
678 if (!strcmp("output_size80", tname))
679 return TEST_OUT_SIZE80;
680 if (!strcmp("output_size84", tname))
681 return TEST_OUT_SIZE84;
682 if (!strcmp("output_size88", tname))
683 return TEST_OUT_SIZE88;
684 if (!strcmp("output_size92", tname))
685 return TEST_OUT_SIZE92;
686 if (!strcmp("output_size96", tname))
687 return TEST_OUT_SIZE96;
688 if (!strcmp("output_size100", tname))
689 return TEST_OUT_SIZE100;
690 if (!strcmp("output_size104", tname))
691 return TEST_OUT_SIZE104;
692 if (!strcmp("output_size108", tname))
693 return TEST_OUT_SIZE108;
694 if (!strcmp("output_size112", tname))
695 return TEST_OUT_SIZE112;
696 if (!strcmp("output_size116", tname))
697 return TEST_OUT_SIZE116;
698 if (!strcmp("output_size120", tname))
699 return TEST_OUT_SIZE120;
700 if (!strcmp("output_size124", tname))
701 return TEST_OUT_SIZE124;
702 if (!strcmp("output_size128", tname))
703 return TEST_OUT_SIZE128;
704 if (!strcmp("output_size132", tname))
705 return TEST_OUT_SIZE132;
706 if (!strcmp("output_size136", tname))
707 return TEST_OUT_SIZE136;
708 if (!strcmp("output_size140", tname))
709 return TEST_OUT_SIZE140;
710 if (!strcmp("output_size144", tname))
711 return TEST_OUT_SIZE144;
712 if (!strcmp("output_size148", tname))
713 return TEST_OUT_SIZE148;
714 if (!strcmp("output_size152", tname))
715 return TEST_OUT_SIZE152;
716 if (!strcmp("output_size156", tname))
717 return TEST_OUT_SIZE156;
718 if (!strcmp("output_size160", tname))
719 return TEST_OUT_SIZE160;
720 if (!strcmp("output_size164", tname))
721 return TEST_OUT_SIZE164;
722 if (!strcmp("output_size168", tname))
723 return TEST_OUT_SIZE168;
724 if (!strcmp("output_size172", tname))
725 return TEST_OUT_SIZE172;
726 if (!strcmp("output_size176", tname))
727 return TEST_OUT_SIZE176;
728 if (!strcmp("output_size180", tname))
729 return TEST_OUT_SIZE180;
730 if (!strcmp("output_size184", tname))
731 return TEST_OUT_SIZE184;
732 if (!strcmp("output_size188", tname))
733 return TEST_OUT_SIZE188;
734 if (!strcmp("output_size192", tname))
735 return TEST_OUT_SIZE192;
736 if (!strcmp("output_size196", tname))
737 return TEST_OUT_SIZE196;
738 if (!strcmp("output_size200", tname))
739 return TEST_OUT_SIZE200;
740 if (!strcmp("output_size204", tname))
741 return TEST_OUT_SIZE204;
742 if (!strcmp("output_size208", tname))
743 return TEST_OUT_SIZE208;
744 if (!strcmp("output_size212", tname))
745 return TEST_OUT_SIZE212;
746 if (!strcmp("output_size216", tname))
747 return TEST_OUT_SIZE216;
748 if (!strcmp("output_size220", tname))
749 return TEST_OUT_SIZE220;
750 if (!strcmp("output_size224", tname))
751 return TEST_OUT_SIZE224;
752 if (!strcmp("output_size228", tname))
753 return TEST_OUT_SIZE228;
754 if (!strcmp("output_size232", tname))
755 return TEST_OUT_SIZE232;
756 if (!strcmp("output_size236", tname))
757 return TEST_OUT_SIZE236;
758 if (!strcmp("output_size240", tname))
759 return TEST_OUT_SIZE240;
760 if (!strcmp("output_size244", tname))
761 return TEST_OUT_SIZE244;
762 if (!strcmp("output_full_supp_trace", tname))
763 return TEST_OUT_FULL_SUPP_TRACE;
764 if (!strcmp("input_undef_ns", tname))
765 return TEST_IN_UNDEF_NS;
766 if (!strcmp("input_no_room", tname))
767 return TEST_IN_NO_ROOM;
768 if (!strcmp("input_no_room_oss", tname))
769 return TEST_IN_NO_ROOM_OSS;
770 if (!strcmp("input_disabled", tname))
771 return TEST_IN_DISABLED;
772 if (!strcmp("input_oflag", tname))
773 return TEST_IN_OFLAG;
774 if (!strcmp("input_bit0", tname))
775 return TEST_IN_BIT0;
776 if (!strcmp("input_bit1", tname))
777 return TEST_IN_BIT1;
778 if (!strcmp("input_bit2", tname))
779 return TEST_IN_BIT2;
780 if (!strcmp("input_bit3", tname))
781 return TEST_IN_BIT3;
782 if (!strcmp("input_bit4", tname))
783 return TEST_IN_BIT4;
784 if (!strcmp("input_bit5", tname))
785 return TEST_IN_BIT5;
786 if (!strcmp("input_bit6", tname))
787 return TEST_IN_BIT6;
788 if (!strcmp("input_bit7", tname))
789 return TEST_IN_BIT7;
790 if (!strcmp("input_bit8", tname))
791 return TEST_IN_BIT8;
792 if (!strcmp("input_bit9", tname))
793 return TEST_IN_BIT9;
794 if (!strcmp("input_bit10", tname))
795 return TEST_IN_BIT10;
796 if (!strcmp("input_bit11", tname))
797 return TEST_IN_BIT11;
798 if (!strcmp("input_bit22", tname))
799 return TEST_IN_BIT22;
800 if (!strcmp("input_size4", tname))
801 return TEST_IN_SIZE4;
802 if (!strcmp("input_size8", tname))
803 return TEST_IN_SIZE8;
804 if (!strcmp("input_size12", tname))
805 return TEST_IN_SIZE12;
806 if (!strcmp("input_size16", tname))
807 return TEST_IN_SIZE16;
808 if (!strcmp("input_size20", tname))
809 return TEST_IN_SIZE20;
810 if (!strcmp("input_size24", tname))
811 return TEST_IN_SIZE24;
812 if (!strcmp("input_size28", tname))
813 return TEST_IN_SIZE28;
814 if (!strcmp("input_size32", tname))
815 return TEST_IN_SIZE32;
816 if (!strcmp("input_size36", tname))
817 return TEST_IN_SIZE36;
818 if (!strcmp("input_size40", tname))
819 return TEST_IN_SIZE40;
820 if (!strcmp("input_size44", tname))
821 return TEST_IN_SIZE44;
822 if (!strcmp("input_size48", tname))
823 return TEST_IN_SIZE48;
824 if (!strcmp("input_size52", tname))
825 return TEST_IN_SIZE52;
826 if (!strcmp("input_size56", tname))
827 return TEST_IN_SIZE56;
828 if (!strcmp("input_size60", tname))
829 return TEST_IN_SIZE60;
830 if (!strcmp("input_size64", tname))
831 return TEST_IN_SIZE64;
832 if (!strcmp("input_size68", tname))
833 return TEST_IN_SIZE68;
834 if (!strcmp("input_size72", tname))
835 return TEST_IN_SIZE72;
836 if (!strcmp("input_size76", tname))
837 return TEST_IN_SIZE76;
838 if (!strcmp("input_size80", tname))
839 return TEST_IN_SIZE80;
840 if (!strcmp("input_size84", tname))
841 return TEST_IN_SIZE84;
842 if (!strcmp("input_size88", tname))
843 return TEST_IN_SIZE88;
844 if (!strcmp("input_size92", tname))
845 return TEST_IN_SIZE92;
846 if (!strcmp("input_size96", tname))
847 return TEST_IN_SIZE96;
848 if (!strcmp("input_size100", tname))
849 return TEST_IN_SIZE100;
850 if (!strcmp("input_size104", tname))
851 return TEST_IN_SIZE104;
852 if (!strcmp("input_size108", tname))
853 return TEST_IN_SIZE108;
854 if (!strcmp("input_size112", tname))
855 return TEST_IN_SIZE112;
856 if (!strcmp("input_size116", tname))
857 return TEST_IN_SIZE116;
858 if (!strcmp("input_size120", tname))
859 return TEST_IN_SIZE120;
860 if (!strcmp("input_size124", tname))
861 return TEST_IN_SIZE124;
862 if (!strcmp("input_size128", tname))
863 return TEST_IN_SIZE128;
864 if (!strcmp("input_size132", tname))
865 return TEST_IN_SIZE132;
866 if (!strcmp("input_size136", tname))
867 return TEST_IN_SIZE136;
868 if (!strcmp("input_size140", tname))
869 return TEST_IN_SIZE140;
870 if (!strcmp("input_size144", tname))
871 return TEST_IN_SIZE144;
872 if (!strcmp("input_size148", tname))
873 return TEST_IN_SIZE148;
874 if (!strcmp("input_size152", tname))
875 return TEST_IN_SIZE152;
876 if (!strcmp("input_size156", tname))
877 return TEST_IN_SIZE156;
878 if (!strcmp("input_size160", tname))
879 return TEST_IN_SIZE160;
880 if (!strcmp("input_size164", tname))
881 return TEST_IN_SIZE164;
882 if (!strcmp("input_size168", tname))
883 return TEST_IN_SIZE168;
884 if (!strcmp("input_size172", tname))
885 return TEST_IN_SIZE172;
886 if (!strcmp("input_size176", tname))
887 return TEST_IN_SIZE176;
888 if (!strcmp("input_size180", tname))
889 return TEST_IN_SIZE180;
890 if (!strcmp("input_size184", tname))
891 return TEST_IN_SIZE184;
892 if (!strcmp("input_size188", tname))
893 return TEST_IN_SIZE188;
894 if (!strcmp("input_size192", tname))
895 return TEST_IN_SIZE192;
896 if (!strcmp("input_size196", tname))
897 return TEST_IN_SIZE196;
898 if (!strcmp("input_size200", tname))
899 return TEST_IN_SIZE200;
900 if (!strcmp("input_size204", tname))
901 return TEST_IN_SIZE204;
902 if (!strcmp("input_size208", tname))
903 return TEST_IN_SIZE208;
904 if (!strcmp("input_size212", tname))
905 return TEST_IN_SIZE212;
906 if (!strcmp("input_size216", tname))
907 return TEST_IN_SIZE216;
908 if (!strcmp("input_size220", tname))
909 return TEST_IN_SIZE220;
910 if (!strcmp("input_size224", tname))
911 return TEST_IN_SIZE224;
912 if (!strcmp("input_size228", tname))
913 return TEST_IN_SIZE228;
914 if (!strcmp("input_size232", tname))
915 return TEST_IN_SIZE232;
916 if (!strcmp("input_size236", tname))
917 return TEST_IN_SIZE236;
918 if (!strcmp("input_size240", tname))
919 return TEST_IN_SIZE240;
920 if (!strcmp("input_size244", tname))
921 return TEST_IN_SIZE244;
922 if (!strcmp("input_full_supp_trace", tname))
923 return TEST_IN_FULL_SUPP_TRACE;
924
925 return -1;
926}
927
928static int ipv6_addr_equal(const struct in6_addr *a1, const struct in6_addr *a2)
929{
930 return ((a1->s6_addr32[0] ^ a2->s6_addr32[0]) |
931 (a1->s6_addr32[1] ^ a2->s6_addr32[1]) |
932 (a1->s6_addr32[2] ^ a2->s6_addr32[2]) |
933 (a1->s6_addr32[3] ^ a2->s6_addr32[3])) == 0;
934}
935
936static int get_u32(__u32 *val, const char *arg, int base)
937{
938 unsigned long res;
939 char *ptr;
940
941 if (!arg || !*arg)
942 return -1;
943 res = strtoul(arg, &ptr, base);
944
945 if (!ptr || ptr == arg || *ptr)
946 return -1;
947
948 if (res == ULONG_MAX && errno == ERANGE)
949 return -1;
950
951 if (res > 0xFFFFFFFFUL)
952 return -1;
953
954 *val = res;
955 return 0;
956}
957
958static int get_u16(__u16 *val, const char *arg, int base)
959{
960 unsigned long res;
961 char *ptr;
962
963 if (!arg || !*arg)
964 return -1;
965 res = strtoul(arg, &ptr, base);
966
967 if (!ptr || ptr == arg || *ptr)
968 return -1;
969
970 if (res == ULONG_MAX && errno == ERANGE)
971 return -1;
972
973 if (res > 0xFFFFUL)
974 return -1;
975
976 *val = res;
977 return 0;
978}
979
980static int get_u8(__u8 *val, const char *arg, int base)
981{
982 unsigned long res;
983 char *ptr;
984
985 if (!arg || !*arg)
986 return -1;
987 res = strtoul(arg, &ptr, base);
988
989 if (!ptr || ptr == arg || *ptr)
990 return -1;
991
992 if (res == ULONG_MAX && errno == ERANGE)
993 return -1;
994
995 if (res > 0xFFUL)
996 return -1;
997
998 *val = res;
999 return 0;
1000}
1001
1002int main(int argc, char **argv)
1003{
1004 __u8 buffer[512], *ptr, nexthdr, tr_size;
1005 struct ioam6_trace_hdr *trace;
1006 unsigned int hoplen, ret = 1;
1007 struct ipv6_hopopt_hdr *hbh;
1008 int fd, size, testname_id;
1009 struct in6_addr src, dst;
1010 struct ioam6_hdr *ioam6;
1011 struct timeval timeout;
1012 struct ipv6hdr *ipv6;
1013 __u32 tr_type;
1014 __u16 ioam_ns;
1015
1016 if (argc != 9)
1017 goto out;
1018
1019 testname_id = str2id(argv[2]);
1020
1021 if (testname_id < 0 ||
1022 inet_pton(AF_INET6, argv[3], &src) != 1 ||
1023 inet_pton(AF_INET6, argv[4], &dst) != 1 ||
1024 get_u32(&tr_type, argv[5], 16) ||
1025 get_u8(&tr_size, argv[6], 0) ||
1026 get_u16(&ioam_ns, argv[7], 0))
1027 goto out;
1028
1029 nexthdr = (!strcmp(argv[8], "encap") ? IPPROTO_IPV6 : IPPROTO_ICMPV6);
1030
1031 hoplen = sizeof(*hbh);
1032 hoplen += 2; // 2-byte padding for alignment
1033 hoplen += sizeof(*ioam6); // IOAM option header
1034 hoplen += sizeof(*trace); // IOAM trace header
1035 hoplen += tr_size; // IOAM trace size
1036 hoplen += (tr_size % 8); // optional padding
1037
1038 fd = socket(AF_PACKET, SOCK_DGRAM, __cpu_to_be16(ETH_P_IPV6));
1039 if (fd < 0)
1040 goto out;
1041
1042 if (setsockopt(fd, SOL_SOCKET, SO_BINDTODEVICE,
1043 argv[1], strlen(argv[1])))
1044 goto close;
1045
1046 timeout.tv_sec = 1;
1047 timeout.tv_usec = 0;
1048 if (setsockopt(fd, SOL_SOCKET, SO_RCVTIMEO,
1049 (const char *)&timeout, sizeof(timeout)))
1050 goto close;
1051recv:
1052 size = recv(fd, buffer, sizeof(buffer), 0);
1053 if (size <= 0)
1054 goto close;
1055
1056 ipv6 = (struct ipv6hdr *)buffer;
1057
1058 /* Skip packets that do not have the expected src/dst address or that
1059 * do not have a Hop-by-hop.
1060 */
1061 if (!ipv6_addr_equal(&ipv6->saddr, &src) ||
1062 !ipv6_addr_equal(&ipv6->daddr, &dst) ||
1063 ipv6->nexthdr != IPPROTO_HOPOPTS)
1064 goto recv;
1065
1066 /* Check Hbh's Next Header and Size. */
1067 hbh = (struct ipv6_hopopt_hdr *)(buffer + sizeof(*ipv6));
1068 if (hbh->nexthdr != nexthdr || hbh->hdrlen != (hoplen >> 3) - 1)
1069 goto close;
1070
1071 /* Check we have a 2-byte padding for alignment. */
1072 ptr = (__u8 *)hbh + sizeof(*hbh);
1073 if (ptr[0] != IPV6_TLV_PADN && ptr[1] != 0)
1074 goto close;
1075
1076 /* Check we now have the IOAM option. */
1077 ptr += 2;
1078 if (ptr[0] != IPV6_TLV_IOAM)
1079 goto close;
1080
1081 /* Check its size and the IOAM option type. */
1082 ioam6 = (struct ioam6_hdr *)ptr;
1083 if (ioam6->opt_len != sizeof(*ioam6) - 2 + sizeof(*trace) + tr_size ||
1084 ioam6->type != IOAM6_TYPE_PREALLOC)
1085 goto close;
1086
1087 trace = (struct ioam6_trace_hdr *)(ptr + sizeof(*ioam6));
1088
1089 /* Check the trailing 4-byte padding (potentially). */
1090 ptr = (__u8 *)trace + sizeof(*trace) + tr_size;
1091 if (tr_size % 8 && ptr[0] != IPV6_TLV_PADN && ptr[1] != 2 &&
1092 ptr[2] != 0 && ptr[3] != 0)
1093 goto close;
1094
1095 /* Check the IOAM header and data. */
1096 ret = check_ioam_trace(testname_id, trace, tr_type, tr_size, ioam_ns);
1097close:
1098 close(fd);
1099out:
1100 return ret;
1101}