Justin Iurman | 968691c | 2021-07-20 21:43:01 +0200 | [diff] [blame] | 1 | // SPDX-License-Identifier: GPL-2.0+ |
| 2 | /* |
| 3 | * Author: Justin Iurman (justin.iurman@uliege.be) |
| 4 | * |
Justin Iurman | 752be29 | 2021-08-16 19:16:38 +0200 | [diff] [blame] | 5 | * IOAM tester for IPv6, see ioam6.sh for details on each test case. |
Justin Iurman | 968691c | 2021-07-20 21:43:01 +0200 | [diff] [blame] | 6 | */ |
Justin Iurman | 752be29 | 2021-08-16 19:16:38 +0200 | [diff] [blame] | 7 | #include <arpa/inet.h> |
| 8 | #include <errno.h> |
| 9 | #include <limits.h> |
Justin Iurman | 968691c | 2021-07-20 21:43:01 +0200 | [diff] [blame] | 10 | #include <linux/const.h> |
| 11 | #include <linux/if_ether.h> |
| 12 | #include <linux/ioam6.h> |
| 13 | #include <linux/ipv6.h> |
Justin Iurman | 968691c | 2021-07-20 21:43:01 +0200 | [diff] [blame] | 14 | #include <stdlib.h> |
| 15 | #include <string.h> |
| 16 | #include <unistd.h> |
| 17 | |
Justin Iurman | 752be29 | 2021-08-16 19:16:38 +0200 | [diff] [blame] | 18 | struct ioam_config { |
Justin Iurman | 968691c | 2021-07-20 21:43:01 +0200 | [diff] [blame] | 19 | __u32 id; |
| 20 | __u64 wide; |
| 21 | __u16 ingr_id; |
| 22 | __u16 egr_id; |
| 23 | __u32 ingr_wide; |
| 24 | __u32 egr_wide; |
| 25 | __u32 ns_data; |
| 26 | __u64 ns_wide; |
| 27 | __u32 sc_id; |
Justin Iurman | 752be29 | 2021-08-16 19:16:38 +0200 | [diff] [blame] | 28 | __u8 hlim; |
| 29 | char *sc_data; |
Justin Iurman | 968691c | 2021-07-20 21:43:01 +0200 | [diff] [blame] | 30 | }; |
| 31 | |
Justin Iurman | 752be29 | 2021-08-16 19:16:38 +0200 | [diff] [blame] | 32 | /* |
| 33 | * Be careful if you modify structs below - everything MUST be kept synchronized |
| 34 | * with configurations inside ioam6.sh and always reflect the same. |
| 35 | */ |
| 36 | |
| 37 | static struct ioam_config node1 = { |
| 38 | .id = 1, |
| 39 | .wide = 11111111, |
| 40 | .ingr_id = 0xffff, /* default value */ |
| 41 | .egr_id = 101, |
| 42 | .ingr_wide = 0xffffffff, /* default value */ |
| 43 | .egr_wide = 101101, |
| 44 | .ns_data = 0xdeadbee0, |
| 45 | .ns_wide = 0xcafec0caf00dc0de, |
| 46 | .sc_id = 777, |
| 47 | .sc_data = "something that will be 4n-aligned", |
| 48 | .hlim = 64, |
| 49 | }; |
| 50 | |
| 51 | static struct ioam_config node2 = { |
| 52 | .id = 2, |
| 53 | .wide = 22222222, |
| 54 | .ingr_id = 201, |
| 55 | .egr_id = 202, |
| 56 | .ingr_wide = 201201, |
| 57 | .egr_wide = 202202, |
| 58 | .ns_data = 0xdeadbee1, |
| 59 | .ns_wide = 0xcafec0caf11dc0de, |
| 60 | .sc_id = 666, |
| 61 | .sc_data = "Hello there -Obi", |
| 62 | .hlim = 63, |
| 63 | }; |
| 64 | |
| 65 | static struct ioam_config node3 = { |
| 66 | .id = 3, |
| 67 | .wide = 33333333, |
| 68 | .ingr_id = 301, |
| 69 | .egr_id = 0xffff, /* default value */ |
| 70 | .ingr_wide = 301301, |
| 71 | .egr_wide = 0xffffffff, /* default value */ |
| 72 | .ns_data = 0xdeadbee2, |
| 73 | .ns_wide = 0xcafec0caf22dc0de, |
| 74 | .sc_id = 0xffffff, /* default value */ |
| 75 | .sc_data = NULL, |
| 76 | .hlim = 62, |
| 77 | }; |
| 78 | |
Justin Iurman | 968691c | 2021-07-20 21:43:01 +0200 | [diff] [blame] | 79 | enum { |
Justin Iurman | 752be29 | 2021-08-16 19:16:38 +0200 | [diff] [blame] | 80 | /********** |
| 81 | * OUTPUT * |
| 82 | **********/ |
| 83 | TEST_OUT_UNDEF_NS, |
| 84 | TEST_OUT_NO_ROOM, |
| 85 | TEST_OUT_BIT0, |
| 86 | TEST_OUT_BIT1, |
| 87 | TEST_OUT_BIT2, |
| 88 | TEST_OUT_BIT3, |
| 89 | TEST_OUT_BIT4, |
| 90 | TEST_OUT_BIT5, |
| 91 | TEST_OUT_BIT6, |
| 92 | TEST_OUT_BIT7, |
| 93 | TEST_OUT_BIT8, |
| 94 | TEST_OUT_BIT9, |
| 95 | TEST_OUT_BIT10, |
| 96 | TEST_OUT_BIT11, |
Justin Iurman | 752be29 | 2021-08-16 19:16:38 +0200 | [diff] [blame] | 97 | TEST_OUT_BIT22, |
| 98 | TEST_OUT_FULL_SUPP_TRACE, |
| 99 | |
| 100 | /********* |
| 101 | * INPUT * |
| 102 | *********/ |
| 103 | TEST_IN_UNDEF_NS, |
| 104 | TEST_IN_NO_ROOM, |
| 105 | TEST_IN_OFLAG, |
| 106 | TEST_IN_BIT0, |
| 107 | TEST_IN_BIT1, |
| 108 | TEST_IN_BIT2, |
| 109 | TEST_IN_BIT3, |
| 110 | TEST_IN_BIT4, |
| 111 | TEST_IN_BIT5, |
| 112 | TEST_IN_BIT6, |
| 113 | TEST_IN_BIT7, |
| 114 | TEST_IN_BIT8, |
| 115 | TEST_IN_BIT9, |
| 116 | TEST_IN_BIT10, |
| 117 | TEST_IN_BIT11, |
Justin Iurman | 752be29 | 2021-08-16 19:16:38 +0200 | [diff] [blame] | 118 | TEST_IN_BIT22, |
| 119 | TEST_IN_FULL_SUPP_TRACE, |
| 120 | |
| 121 | /********** |
| 122 | * GLOBAL * |
| 123 | **********/ |
| 124 | TEST_FWD_FULL_SUPP_TRACE, |
| 125 | |
| 126 | __TEST_MAX, |
Justin Iurman | 968691c | 2021-07-20 21:43:01 +0200 | [diff] [blame] | 127 | }; |
| 128 | |
Justin Iurman | 752be29 | 2021-08-16 19:16:38 +0200 | [diff] [blame] | 129 | static int check_ioam_header(int tid, struct ioam6_trace_hdr *ioam6h, |
| 130 | __u32 trace_type, __u16 ioam_ns) |
Justin Iurman | 968691c | 2021-07-20 21:43:01 +0200 | [diff] [blame] | 131 | { |
Justin Iurman | 752be29 | 2021-08-16 19:16:38 +0200 | [diff] [blame] | 132 | if (__be16_to_cpu(ioam6h->namespace_id) != ioam_ns || |
| 133 | __be32_to_cpu(ioam6h->type_be32) != (trace_type << 8)) |
| 134 | return 1; |
| 135 | |
| 136 | switch (tid) { |
| 137 | case TEST_OUT_UNDEF_NS: |
| 138 | case TEST_IN_UNDEF_NS: |
| 139 | return ioam6h->overflow || |
| 140 | ioam6h->nodelen != 1 || |
| 141 | ioam6h->remlen != 1; |
| 142 | |
| 143 | case TEST_OUT_NO_ROOM: |
| 144 | case TEST_IN_NO_ROOM: |
| 145 | case TEST_IN_OFLAG: |
| 146 | return !ioam6h->overflow || |
| 147 | ioam6h->nodelen != 2 || |
| 148 | ioam6h->remlen != 1; |
| 149 | |
| 150 | case TEST_OUT_BIT0: |
| 151 | case TEST_IN_BIT0: |
| 152 | case TEST_OUT_BIT1: |
| 153 | case TEST_IN_BIT1: |
| 154 | case TEST_OUT_BIT2: |
| 155 | case TEST_IN_BIT2: |
| 156 | case TEST_OUT_BIT3: |
| 157 | case TEST_IN_BIT3: |
| 158 | case TEST_OUT_BIT4: |
| 159 | case TEST_IN_BIT4: |
| 160 | case TEST_OUT_BIT5: |
| 161 | case TEST_IN_BIT5: |
| 162 | case TEST_OUT_BIT6: |
| 163 | case TEST_IN_BIT6: |
| 164 | case TEST_OUT_BIT7: |
| 165 | case TEST_IN_BIT7: |
| 166 | case TEST_OUT_BIT11: |
| 167 | case TEST_IN_BIT11: |
| 168 | return ioam6h->overflow || |
| 169 | ioam6h->nodelen != 1 || |
| 170 | ioam6h->remlen; |
| 171 | |
| 172 | case TEST_OUT_BIT8: |
| 173 | case TEST_IN_BIT8: |
| 174 | case TEST_OUT_BIT9: |
| 175 | case TEST_IN_BIT9: |
| 176 | case TEST_OUT_BIT10: |
| 177 | case TEST_IN_BIT10: |
| 178 | return ioam6h->overflow || |
| 179 | ioam6h->nodelen != 2 || |
| 180 | ioam6h->remlen; |
| 181 | |
Justin Iurman | 752be29 | 2021-08-16 19:16:38 +0200 | [diff] [blame] | 182 | case TEST_OUT_BIT22: |
| 183 | case TEST_IN_BIT22: |
| 184 | return ioam6h->overflow || |
| 185 | ioam6h->nodelen || |
| 186 | ioam6h->remlen; |
| 187 | |
| 188 | case TEST_OUT_FULL_SUPP_TRACE: |
| 189 | case TEST_IN_FULL_SUPP_TRACE: |
| 190 | case TEST_FWD_FULL_SUPP_TRACE: |
| 191 | return ioam6h->overflow || |
| 192 | ioam6h->nodelen != 15 || |
| 193 | ioam6h->remlen; |
| 194 | |
| 195 | default: |
| 196 | break; |
| 197 | } |
| 198 | |
| 199 | return 1; |
| 200 | } |
| 201 | |
| 202 | static int check_ioam6_data(__u8 **p, struct ioam6_trace_hdr *ioam6h, |
| 203 | const struct ioam_config cnf) |
| 204 | { |
| 205 | unsigned int len; |
| 206 | __u8 aligned; |
Justin Iurman | 968691c | 2021-07-20 21:43:01 +0200 | [diff] [blame] | 207 | __u64 raw64; |
| 208 | __u32 raw32; |
Justin Iurman | 968691c | 2021-07-20 21:43:01 +0200 | [diff] [blame] | 209 | |
Justin Iurman | 752be29 | 2021-08-16 19:16:38 +0200 | [diff] [blame] | 210 | if (ioam6h->type.bit0) { |
Justin Iurman | 968691c | 2021-07-20 21:43:01 +0200 | [diff] [blame] | 211 | raw32 = __be32_to_cpu(*((__u32 *)*p)); |
Justin Iurman | 752be29 | 2021-08-16 19:16:38 +0200 | [diff] [blame] | 212 | if (cnf.hlim != (raw32 >> 24) || cnf.id != (raw32 & 0xffffff)) |
Justin Iurman | 968691c | 2021-07-20 21:43:01 +0200 | [diff] [blame] | 213 | return 1; |
| 214 | *p += sizeof(__u32); |
| 215 | } |
| 216 | |
Justin Iurman | 752be29 | 2021-08-16 19:16:38 +0200 | [diff] [blame] | 217 | if (ioam6h->type.bit1) { |
Justin Iurman | 968691c | 2021-07-20 21:43:01 +0200 | [diff] [blame] | 218 | raw32 = __be32_to_cpu(*((__u32 *)*p)); |
Justin Iurman | 752be29 | 2021-08-16 19:16:38 +0200 | [diff] [blame] | 219 | if (cnf.ingr_id != (raw32 >> 16) || |
| 220 | cnf.egr_id != (raw32 & 0xffff)) |
Justin Iurman | 968691c | 2021-07-20 21:43:01 +0200 | [diff] [blame] | 221 | return 1; |
| 222 | *p += sizeof(__u32); |
| 223 | } |
| 224 | |
Justin Iurman | 752be29 | 2021-08-16 19:16:38 +0200 | [diff] [blame] | 225 | if (ioam6h->type.bit2) |
Justin Iurman | 968691c | 2021-07-20 21:43:01 +0200 | [diff] [blame] | 226 | *p += sizeof(__u32); |
| 227 | |
Justin Iurman | 752be29 | 2021-08-16 19:16:38 +0200 | [diff] [blame] | 228 | if (ioam6h->type.bit3) |
Justin Iurman | 968691c | 2021-07-20 21:43:01 +0200 | [diff] [blame] | 229 | *p += sizeof(__u32); |
| 230 | |
Justin Iurman | 752be29 | 2021-08-16 19:16:38 +0200 | [diff] [blame] | 231 | if (ioam6h->type.bit4) { |
Justin Iurman | 968691c | 2021-07-20 21:43:01 +0200 | [diff] [blame] | 232 | if (__be32_to_cpu(*((__u32 *)*p)) != 0xffffffff) |
| 233 | return 1; |
| 234 | *p += sizeof(__u32); |
| 235 | } |
| 236 | |
Justin Iurman | 752be29 | 2021-08-16 19:16:38 +0200 | [diff] [blame] | 237 | if (ioam6h->type.bit5) { |
| 238 | if (__be32_to_cpu(*((__u32 *)*p)) != cnf.ns_data) |
Justin Iurman | 968691c | 2021-07-20 21:43:01 +0200 | [diff] [blame] | 239 | return 1; |
| 240 | *p += sizeof(__u32); |
| 241 | } |
| 242 | |
Justin Iurman | afa114d | 2022-01-21 18:34:49 +0100 | [diff] [blame] | 243 | if (ioam6h->type.bit6) |
Justin Iurman | 968691c | 2021-07-20 21:43:01 +0200 | [diff] [blame] | 244 | *p += sizeof(__u32); |
Justin Iurman | 968691c | 2021-07-20 21:43:01 +0200 | [diff] [blame] | 245 | |
Justin Iurman | 752be29 | 2021-08-16 19:16:38 +0200 | [diff] [blame] | 246 | if (ioam6h->type.bit7) { |
Justin Iurman | 968691c | 2021-07-20 21:43:01 +0200 | [diff] [blame] | 247 | if (__be32_to_cpu(*((__u32 *)*p)) != 0xffffffff) |
| 248 | return 1; |
| 249 | *p += sizeof(__u32); |
| 250 | } |
| 251 | |
Justin Iurman | 752be29 | 2021-08-16 19:16:38 +0200 | [diff] [blame] | 252 | if (ioam6h->type.bit8) { |
Justin Iurman | 968691c | 2021-07-20 21:43:01 +0200 | [diff] [blame] | 253 | raw64 = __be64_to_cpu(*((__u64 *)*p)); |
Justin Iurman | 752be29 | 2021-08-16 19:16:38 +0200 | [diff] [blame] | 254 | if (cnf.hlim != (raw64 >> 56) || |
| 255 | cnf.wide != (raw64 & 0xffffffffffffff)) |
Justin Iurman | 968691c | 2021-07-20 21:43:01 +0200 | [diff] [blame] | 256 | return 1; |
| 257 | *p += sizeof(__u64); |
| 258 | } |
| 259 | |
Justin Iurman | 752be29 | 2021-08-16 19:16:38 +0200 | [diff] [blame] | 260 | if (ioam6h->type.bit9) { |
| 261 | if (__be32_to_cpu(*((__u32 *)*p)) != cnf.ingr_wide) |
Justin Iurman | 968691c | 2021-07-20 21:43:01 +0200 | [diff] [blame] | 262 | return 1; |
| 263 | *p += sizeof(__u32); |
| 264 | |
Justin Iurman | 752be29 | 2021-08-16 19:16:38 +0200 | [diff] [blame] | 265 | if (__be32_to_cpu(*((__u32 *)*p)) != cnf.egr_wide) |
Justin Iurman | 968691c | 2021-07-20 21:43:01 +0200 | [diff] [blame] | 266 | return 1; |
| 267 | *p += sizeof(__u32); |
| 268 | } |
| 269 | |
Justin Iurman | 752be29 | 2021-08-16 19:16:38 +0200 | [diff] [blame] | 270 | if (ioam6h->type.bit10) { |
| 271 | if (__be64_to_cpu(*((__u64 *)*p)) != cnf.ns_wide) |
Justin Iurman | 968691c | 2021-07-20 21:43:01 +0200 | [diff] [blame] | 272 | return 1; |
| 273 | *p += sizeof(__u64); |
| 274 | } |
| 275 | |
Justin Iurman | 752be29 | 2021-08-16 19:16:38 +0200 | [diff] [blame] | 276 | if (ioam6h->type.bit11) { |
Justin Iurman | 968691c | 2021-07-20 21:43:01 +0200 | [diff] [blame] | 277 | if (__be32_to_cpu(*((__u32 *)*p)) != 0xffffffff) |
| 278 | return 1; |
| 279 | *p += sizeof(__u32); |
| 280 | } |
| 281 | |
Justin Iurman | 7b1700e | 2021-10-11 20:04:12 +0200 | [diff] [blame] | 282 | if (ioam6h->type.bit12) { |
| 283 | if (__be32_to_cpu(*((__u32 *)*p)) != 0xffffffff) |
| 284 | return 1; |
| 285 | *p += sizeof(__u32); |
| 286 | } |
| 287 | |
| 288 | if (ioam6h->type.bit13) { |
| 289 | if (__be32_to_cpu(*((__u32 *)*p)) != 0xffffffff) |
| 290 | return 1; |
| 291 | *p += sizeof(__u32); |
| 292 | } |
| 293 | |
| 294 | if (ioam6h->type.bit14) { |
| 295 | if (__be32_to_cpu(*((__u32 *)*p)) != 0xffffffff) |
| 296 | return 1; |
| 297 | *p += sizeof(__u32); |
| 298 | } |
| 299 | |
| 300 | if (ioam6h->type.bit15) { |
| 301 | if (__be32_to_cpu(*((__u32 *)*p)) != 0xffffffff) |
| 302 | return 1; |
| 303 | *p += sizeof(__u32); |
| 304 | } |
| 305 | |
| 306 | if (ioam6h->type.bit16) { |
| 307 | if (__be32_to_cpu(*((__u32 *)*p)) != 0xffffffff) |
| 308 | return 1; |
| 309 | *p += sizeof(__u32); |
| 310 | } |
| 311 | |
| 312 | if (ioam6h->type.bit17) { |
| 313 | if (__be32_to_cpu(*((__u32 *)*p)) != 0xffffffff) |
| 314 | return 1; |
| 315 | *p += sizeof(__u32); |
| 316 | } |
| 317 | |
| 318 | if (ioam6h->type.bit18) { |
| 319 | if (__be32_to_cpu(*((__u32 *)*p)) != 0xffffffff) |
| 320 | return 1; |
| 321 | *p += sizeof(__u32); |
| 322 | } |
| 323 | |
| 324 | if (ioam6h->type.bit19) { |
| 325 | if (__be32_to_cpu(*((__u32 *)*p)) != 0xffffffff) |
| 326 | return 1; |
| 327 | *p += sizeof(__u32); |
| 328 | } |
| 329 | |
| 330 | if (ioam6h->type.bit20) { |
| 331 | if (__be32_to_cpu(*((__u32 *)*p)) != 0xffffffff) |
| 332 | return 1; |
| 333 | *p += sizeof(__u32); |
| 334 | } |
| 335 | |
| 336 | if (ioam6h->type.bit21) { |
| 337 | if (__be32_to_cpu(*((__u32 *)*p)) != 0xffffffff) |
| 338 | return 1; |
| 339 | *p += sizeof(__u32); |
| 340 | } |
| 341 | |
Justin Iurman | 752be29 | 2021-08-16 19:16:38 +0200 | [diff] [blame] | 342 | if (ioam6h->type.bit22) { |
| 343 | len = cnf.sc_data ? strlen(cnf.sc_data) : 0; |
| 344 | aligned = cnf.sc_data ? __ALIGN_KERNEL(len, 4) : 0; |
| 345 | |
Justin Iurman | 968691c | 2021-07-20 21:43:01 +0200 | [diff] [blame] | 346 | raw32 = __be32_to_cpu(*((__u32 *)*p)); |
Justin Iurman | 752be29 | 2021-08-16 19:16:38 +0200 | [diff] [blame] | 347 | if (aligned != (raw32 >> 24) * 4 || |
| 348 | cnf.sc_id != (raw32 & 0xffffff)) |
Justin Iurman | 968691c | 2021-07-20 21:43:01 +0200 | [diff] [blame] | 349 | return 1; |
| 350 | *p += sizeof(__u32); |
| 351 | |
Justin Iurman | 752be29 | 2021-08-16 19:16:38 +0200 | [diff] [blame] | 352 | if (cnf.sc_data) { |
| 353 | if (strncmp((char *)*p, cnf.sc_data, len)) |
Justin Iurman | 968691c | 2021-07-20 21:43:01 +0200 | [diff] [blame] | 354 | return 1; |
| 355 | |
Justin Iurman | 752be29 | 2021-08-16 19:16:38 +0200 | [diff] [blame] | 356 | *p += len; |
| 357 | aligned -= len; |
Justin Iurman | 968691c | 2021-07-20 21:43:01 +0200 | [diff] [blame] | 358 | |
Justin Iurman | 752be29 | 2021-08-16 19:16:38 +0200 | [diff] [blame] | 359 | while (aligned--) { |
Justin Iurman | 968691c | 2021-07-20 21:43:01 +0200 | [diff] [blame] | 360 | if (**p != '\0') |
| 361 | return 1; |
| 362 | *p += sizeof(__u8); |
| 363 | } |
| 364 | } |
| 365 | } |
| 366 | |
| 367 | return 0; |
| 368 | } |
| 369 | |
Justin Iurman | 752be29 | 2021-08-16 19:16:38 +0200 | [diff] [blame] | 370 | static int check_ioam_header_and_data(int tid, struct ioam6_trace_hdr *ioam6h, |
| 371 | __u32 trace_type, __u16 ioam_ns) |
Justin Iurman | 968691c | 2021-07-20 21:43:01 +0200 | [diff] [blame] | 372 | { |
| 373 | __u8 *p; |
Justin Iurman | 968691c | 2021-07-20 21:43:01 +0200 | [diff] [blame] | 374 | |
Justin Iurman | 752be29 | 2021-08-16 19:16:38 +0200 | [diff] [blame] | 375 | if (check_ioam_header(tid, ioam6h, trace_type, ioam_ns)) |
Justin Iurman | 968691c | 2021-07-20 21:43:01 +0200 | [diff] [blame] | 376 | return 1; |
| 377 | |
Justin Iurman | 752be29 | 2021-08-16 19:16:38 +0200 | [diff] [blame] | 378 | p = ioam6h->data + ioam6h->remlen * 4; |
Justin Iurman | 968691c | 2021-07-20 21:43:01 +0200 | [diff] [blame] | 379 | |
Justin Iurman | 752be29 | 2021-08-16 19:16:38 +0200 | [diff] [blame] | 380 | switch (tid) { |
| 381 | case TEST_OUT_BIT0: |
| 382 | case TEST_OUT_BIT1: |
| 383 | case TEST_OUT_BIT2: |
| 384 | case TEST_OUT_BIT3: |
| 385 | case TEST_OUT_BIT4: |
| 386 | case TEST_OUT_BIT5: |
| 387 | case TEST_OUT_BIT6: |
| 388 | case TEST_OUT_BIT7: |
| 389 | case TEST_OUT_BIT8: |
| 390 | case TEST_OUT_BIT9: |
| 391 | case TEST_OUT_BIT10: |
| 392 | case TEST_OUT_BIT11: |
| 393 | case TEST_OUT_BIT22: |
| 394 | case TEST_OUT_FULL_SUPP_TRACE: |
| 395 | return check_ioam6_data(&p, ioam6h, node1); |
| 396 | |
| 397 | case TEST_IN_BIT0: |
| 398 | case TEST_IN_BIT1: |
| 399 | case TEST_IN_BIT2: |
| 400 | case TEST_IN_BIT3: |
| 401 | case TEST_IN_BIT4: |
| 402 | case TEST_IN_BIT5: |
| 403 | case TEST_IN_BIT6: |
| 404 | case TEST_IN_BIT7: |
| 405 | case TEST_IN_BIT8: |
| 406 | case TEST_IN_BIT9: |
| 407 | case TEST_IN_BIT10: |
| 408 | case TEST_IN_BIT11: |
| 409 | case TEST_IN_BIT22: |
| 410 | case TEST_IN_FULL_SUPP_TRACE: |
| 411 | { |
| 412 | __u32 tmp32 = node2.egr_wide; |
| 413 | __u16 tmp16 = node2.egr_id; |
| 414 | int res; |
| 415 | |
| 416 | node2.egr_id = 0xffff; |
| 417 | node2.egr_wide = 0xffffffff; |
| 418 | |
| 419 | res = check_ioam6_data(&p, ioam6h, node2); |
| 420 | |
| 421 | node2.egr_id = tmp16; |
| 422 | node2.egr_wide = tmp32; |
| 423 | |
| 424 | return res; |
Justin Iurman | 968691c | 2021-07-20 21:43:01 +0200 | [diff] [blame] | 425 | } |
| 426 | |
Justin Iurman | 752be29 | 2021-08-16 19:16:38 +0200 | [diff] [blame] | 427 | case TEST_FWD_FULL_SUPP_TRACE: |
| 428 | if (check_ioam6_data(&p, ioam6h, node3)) |
| 429 | return 1; |
| 430 | if (check_ioam6_data(&p, ioam6h, node2)) |
| 431 | return 1; |
| 432 | return check_ioam6_data(&p, ioam6h, node1); |
| 433 | |
| 434 | default: |
| 435 | break; |
| 436 | } |
| 437 | |
| 438 | return 1; |
| 439 | } |
| 440 | |
| 441 | static int str2id(const char *tname) |
| 442 | { |
| 443 | if (!strcmp("out_undef_ns", tname)) |
| 444 | return TEST_OUT_UNDEF_NS; |
| 445 | if (!strcmp("out_no_room", tname)) |
| 446 | return TEST_OUT_NO_ROOM; |
| 447 | if (!strcmp("out_bit0", tname)) |
| 448 | return TEST_OUT_BIT0; |
| 449 | if (!strcmp("out_bit1", tname)) |
| 450 | return TEST_OUT_BIT1; |
| 451 | if (!strcmp("out_bit2", tname)) |
| 452 | return TEST_OUT_BIT2; |
| 453 | if (!strcmp("out_bit3", tname)) |
| 454 | return TEST_OUT_BIT3; |
| 455 | if (!strcmp("out_bit4", tname)) |
| 456 | return TEST_OUT_BIT4; |
| 457 | if (!strcmp("out_bit5", tname)) |
| 458 | return TEST_OUT_BIT5; |
| 459 | if (!strcmp("out_bit6", tname)) |
| 460 | return TEST_OUT_BIT6; |
| 461 | if (!strcmp("out_bit7", tname)) |
| 462 | return TEST_OUT_BIT7; |
| 463 | if (!strcmp("out_bit8", tname)) |
| 464 | return TEST_OUT_BIT8; |
| 465 | if (!strcmp("out_bit9", tname)) |
| 466 | return TEST_OUT_BIT9; |
| 467 | if (!strcmp("out_bit10", tname)) |
| 468 | return TEST_OUT_BIT10; |
| 469 | if (!strcmp("out_bit11", tname)) |
| 470 | return TEST_OUT_BIT11; |
Justin Iurman | 752be29 | 2021-08-16 19:16:38 +0200 | [diff] [blame] | 471 | if (!strcmp("out_bit22", tname)) |
| 472 | return TEST_OUT_BIT22; |
| 473 | if (!strcmp("out_full_supp_trace", tname)) |
| 474 | return TEST_OUT_FULL_SUPP_TRACE; |
| 475 | if (!strcmp("in_undef_ns", tname)) |
| 476 | return TEST_IN_UNDEF_NS; |
| 477 | if (!strcmp("in_no_room", tname)) |
| 478 | return TEST_IN_NO_ROOM; |
| 479 | if (!strcmp("in_oflag", tname)) |
| 480 | return TEST_IN_OFLAG; |
| 481 | if (!strcmp("in_bit0", tname)) |
| 482 | return TEST_IN_BIT0; |
| 483 | if (!strcmp("in_bit1", tname)) |
| 484 | return TEST_IN_BIT1; |
| 485 | if (!strcmp("in_bit2", tname)) |
| 486 | return TEST_IN_BIT2; |
| 487 | if (!strcmp("in_bit3", tname)) |
| 488 | return TEST_IN_BIT3; |
| 489 | if (!strcmp("in_bit4", tname)) |
| 490 | return TEST_IN_BIT4; |
| 491 | if (!strcmp("in_bit5", tname)) |
| 492 | return TEST_IN_BIT5; |
| 493 | if (!strcmp("in_bit6", tname)) |
| 494 | return TEST_IN_BIT6; |
| 495 | if (!strcmp("in_bit7", tname)) |
| 496 | return TEST_IN_BIT7; |
| 497 | if (!strcmp("in_bit8", tname)) |
| 498 | return TEST_IN_BIT8; |
| 499 | if (!strcmp("in_bit9", tname)) |
| 500 | return TEST_IN_BIT9; |
| 501 | if (!strcmp("in_bit10", tname)) |
| 502 | return TEST_IN_BIT10; |
| 503 | if (!strcmp("in_bit11", tname)) |
| 504 | return TEST_IN_BIT11; |
Justin Iurman | 752be29 | 2021-08-16 19:16:38 +0200 | [diff] [blame] | 505 | if (!strcmp("in_bit22", tname)) |
| 506 | return TEST_IN_BIT22; |
| 507 | if (!strcmp("in_full_supp_trace", tname)) |
| 508 | return TEST_IN_FULL_SUPP_TRACE; |
| 509 | if (!strcmp("fwd_full_supp_trace", tname)) |
| 510 | return TEST_FWD_FULL_SUPP_TRACE; |
| 511 | |
| 512 | return -1; |
| 513 | } |
| 514 | |
| 515 | static int ipv6_addr_equal(const struct in6_addr *a1, const struct in6_addr *a2) |
| 516 | { |
| 517 | return ((a1->s6_addr32[0] ^ a2->s6_addr32[0]) | |
| 518 | (a1->s6_addr32[1] ^ a2->s6_addr32[1]) | |
| 519 | (a1->s6_addr32[2] ^ a2->s6_addr32[2]) | |
| 520 | (a1->s6_addr32[3] ^ a2->s6_addr32[3])) == 0; |
| 521 | } |
| 522 | |
| 523 | static int get_u32(__u32 *val, const char *arg, int base) |
| 524 | { |
| 525 | unsigned long res; |
| 526 | char *ptr; |
| 527 | |
| 528 | if (!arg || !*arg) |
| 529 | return -1; |
| 530 | res = strtoul(arg, &ptr, base); |
| 531 | |
| 532 | if (!ptr || ptr == arg || *ptr) |
| 533 | return -1; |
| 534 | |
| 535 | if (res == ULONG_MAX && errno == ERANGE) |
| 536 | return -1; |
| 537 | |
| 538 | if (res > 0xFFFFFFFFUL) |
| 539 | return -1; |
| 540 | |
| 541 | *val = res; |
Justin Iurman | 968691c | 2021-07-20 21:43:01 +0200 | [diff] [blame] | 542 | return 0; |
| 543 | } |
| 544 | |
Justin Iurman | 752be29 | 2021-08-16 19:16:38 +0200 | [diff] [blame] | 545 | static int get_u16(__u16 *val, const char *arg, int base) |
Justin Iurman | 968691c | 2021-07-20 21:43:01 +0200 | [diff] [blame] | 546 | { |
Justin Iurman | 752be29 | 2021-08-16 19:16:38 +0200 | [diff] [blame] | 547 | unsigned long res; |
| 548 | char *ptr; |
Justin Iurman | 968691c | 2021-07-20 21:43:01 +0200 | [diff] [blame] | 549 | |
Justin Iurman | 752be29 | 2021-08-16 19:16:38 +0200 | [diff] [blame] | 550 | if (!arg || !*arg) |
| 551 | return -1; |
| 552 | res = strtoul(arg, &ptr, base); |
Justin Iurman | 968691c | 2021-07-20 21:43:01 +0200 | [diff] [blame] | 553 | |
Justin Iurman | 752be29 | 2021-08-16 19:16:38 +0200 | [diff] [blame] | 554 | if (!ptr || ptr == arg || *ptr) |
| 555 | return -1; |
Justin Iurman | 968691c | 2021-07-20 21:43:01 +0200 | [diff] [blame] | 556 | |
Justin Iurman | 752be29 | 2021-08-16 19:16:38 +0200 | [diff] [blame] | 557 | if (res == ULONG_MAX && errno == ERANGE) |
| 558 | return -1; |
Justin Iurman | 968691c | 2021-07-20 21:43:01 +0200 | [diff] [blame] | 559 | |
Justin Iurman | 752be29 | 2021-08-16 19:16:38 +0200 | [diff] [blame] | 560 | if (res > 0xFFFFUL) |
| 561 | return -1; |
Justin Iurman | 968691c | 2021-07-20 21:43:01 +0200 | [diff] [blame] | 562 | |
Justin Iurman | 752be29 | 2021-08-16 19:16:38 +0200 | [diff] [blame] | 563 | *val = res; |
Justin Iurman | 968691c | 2021-07-20 21:43:01 +0200 | [diff] [blame] | 564 | return 0; |
| 565 | } |
| 566 | |
Justin Iurman | 752be29 | 2021-08-16 19:16:38 +0200 | [diff] [blame] | 567 | static int (*func[__TEST_MAX])(int, struct ioam6_trace_hdr *, __u32, __u16) = { |
| 568 | [TEST_OUT_UNDEF_NS] = check_ioam_header, |
| 569 | [TEST_OUT_NO_ROOM] = check_ioam_header, |
| 570 | [TEST_OUT_BIT0] = check_ioam_header_and_data, |
| 571 | [TEST_OUT_BIT1] = check_ioam_header_and_data, |
| 572 | [TEST_OUT_BIT2] = check_ioam_header_and_data, |
| 573 | [TEST_OUT_BIT3] = check_ioam_header_and_data, |
| 574 | [TEST_OUT_BIT4] = check_ioam_header_and_data, |
| 575 | [TEST_OUT_BIT5] = check_ioam_header_and_data, |
| 576 | [TEST_OUT_BIT6] = check_ioam_header_and_data, |
| 577 | [TEST_OUT_BIT7] = check_ioam_header_and_data, |
| 578 | [TEST_OUT_BIT8] = check_ioam_header_and_data, |
| 579 | [TEST_OUT_BIT9] = check_ioam_header_and_data, |
| 580 | [TEST_OUT_BIT10] = check_ioam_header_and_data, |
| 581 | [TEST_OUT_BIT11] = check_ioam_header_and_data, |
Justin Iurman | 752be29 | 2021-08-16 19:16:38 +0200 | [diff] [blame] | 582 | [TEST_OUT_BIT22] = check_ioam_header_and_data, |
| 583 | [TEST_OUT_FULL_SUPP_TRACE] = check_ioam_header_and_data, |
| 584 | [TEST_IN_UNDEF_NS] = check_ioam_header, |
| 585 | [TEST_IN_NO_ROOM] = check_ioam_header, |
| 586 | [TEST_IN_OFLAG] = check_ioam_header, |
| 587 | [TEST_IN_BIT0] = check_ioam_header_and_data, |
| 588 | [TEST_IN_BIT1] = check_ioam_header_and_data, |
| 589 | [TEST_IN_BIT2] = check_ioam_header_and_data, |
| 590 | [TEST_IN_BIT3] = check_ioam_header_and_data, |
| 591 | [TEST_IN_BIT4] = check_ioam_header_and_data, |
| 592 | [TEST_IN_BIT5] = check_ioam_header_and_data, |
| 593 | [TEST_IN_BIT6] = check_ioam_header_and_data, |
| 594 | [TEST_IN_BIT7] = check_ioam_header_and_data, |
| 595 | [TEST_IN_BIT8] = check_ioam_header_and_data, |
| 596 | [TEST_IN_BIT9] = check_ioam_header_and_data, |
| 597 | [TEST_IN_BIT10] = check_ioam_header_and_data, |
| 598 | [TEST_IN_BIT11] = check_ioam_header_and_data, |
Justin Iurman | 752be29 | 2021-08-16 19:16:38 +0200 | [diff] [blame] | 599 | [TEST_IN_BIT22] = check_ioam_header_and_data, |
| 600 | [TEST_IN_FULL_SUPP_TRACE] = check_ioam_header_and_data, |
| 601 | [TEST_FWD_FULL_SUPP_TRACE] = check_ioam_header_and_data, |
| 602 | }; |
Justin Iurman | 968691c | 2021-07-20 21:43:01 +0200 | [diff] [blame] | 603 | |
| 604 | int main(int argc, char **argv) |
| 605 | { |
Justin Iurman | 752be29 | 2021-08-16 19:16:38 +0200 | [diff] [blame] | 606 | int fd, size, hoplen, tid, ret = 1; |
| 607 | struct in6_addr src, dst; |
Justin Iurman | 968691c | 2021-07-20 21:43:01 +0200 | [diff] [blame] | 608 | struct ioam6_hdr *opt; |
| 609 | struct ipv6hdr *ip6h; |
| 610 | __u8 buffer[400], *p; |
Justin Iurman | 752be29 | 2021-08-16 19:16:38 +0200 | [diff] [blame] | 611 | __u16 ioam_ns; |
| 612 | __u32 tr_type; |
Justin Iurman | 968691c | 2021-07-20 21:43:01 +0200 | [diff] [blame] | 613 | |
Justin Iurman | 752be29 | 2021-08-16 19:16:38 +0200 | [diff] [blame] | 614 | if (argc != 7) |
Justin Iurman | 968691c | 2021-07-20 21:43:01 +0200 | [diff] [blame] | 615 | goto out; |
Justin Iurman | 752be29 | 2021-08-16 19:16:38 +0200 | [diff] [blame] | 616 | |
| 617 | tid = str2id(argv[2]); |
| 618 | if (tid < 0 || !func[tid]) |
| 619 | goto out; |
| 620 | |
| 621 | if (inet_pton(AF_INET6, argv[3], &src) != 1 || |
| 622 | inet_pton(AF_INET6, argv[4], &dst) != 1) |
| 623 | goto out; |
| 624 | |
| 625 | if (get_u32(&tr_type, argv[5], 16) || |
| 626 | get_u16(&ioam_ns, argv[6], 0)) |
| 627 | goto out; |
Justin Iurman | 968691c | 2021-07-20 21:43:01 +0200 | [diff] [blame] | 628 | |
| 629 | fd = socket(AF_PACKET, SOCK_DGRAM, __cpu_to_be16(ETH_P_IPV6)); |
Justin Iurman | 752be29 | 2021-08-16 19:16:38 +0200 | [diff] [blame] | 630 | if (!fd) |
Justin Iurman | 968691c | 2021-07-20 21:43:01 +0200 | [diff] [blame] | 631 | goto out; |
Justin Iurman | 968691c | 2021-07-20 21:43:01 +0200 | [diff] [blame] | 632 | |
| 633 | if (setsockopt(fd, SOL_SOCKET, SO_BINDTODEVICE, |
Justin Iurman | 752be29 | 2021-08-16 19:16:38 +0200 | [diff] [blame] | 634 | argv[1], strlen(argv[1]))) |
Justin Iurman | 968691c | 2021-07-20 21:43:01 +0200 | [diff] [blame] | 635 | goto close; |
Justin Iurman | 968691c | 2021-07-20 21:43:01 +0200 | [diff] [blame] | 636 | |
Justin Iurman | 752be29 | 2021-08-16 19:16:38 +0200 | [diff] [blame] | 637 | recv: |
| 638 | size = recv(fd, buffer, sizeof(buffer), 0); |
| 639 | if (size <= 0) |
| 640 | goto close; |
Justin Iurman | 968691c | 2021-07-20 21:43:01 +0200 | [diff] [blame] | 641 | |
Justin Iurman | 752be29 | 2021-08-16 19:16:38 +0200 | [diff] [blame] | 642 | ip6h = (struct ipv6hdr *)buffer; |
Justin Iurman | 968691c | 2021-07-20 21:43:01 +0200 | [diff] [blame] | 643 | |
Justin Iurman | 752be29 | 2021-08-16 19:16:38 +0200 | [diff] [blame] | 644 | if (!ipv6_addr_equal(&ip6h->saddr, &src) || |
| 645 | !ipv6_addr_equal(&ip6h->daddr, &dst)) |
| 646 | goto recv; |
Justin Iurman | 968691c | 2021-07-20 21:43:01 +0200 | [diff] [blame] | 647 | |
Justin Iurman | 752be29 | 2021-08-16 19:16:38 +0200 | [diff] [blame] | 648 | if (ip6h->nexthdr != IPPROTO_HOPOPTS) |
| 649 | goto close; |
Justin Iurman | 968691c | 2021-07-20 21:43:01 +0200 | [diff] [blame] | 650 | |
Justin Iurman | 752be29 | 2021-08-16 19:16:38 +0200 | [diff] [blame] | 651 | p = buffer + sizeof(*ip6h); |
| 652 | hoplen = (p[1] + 1) << 3; |
| 653 | p += sizeof(struct ipv6_hopopt_hdr); |
Justin Iurman | 968691c | 2021-07-20 21:43:01 +0200 | [diff] [blame] | 654 | |
Justin Iurman | 752be29 | 2021-08-16 19:16:38 +0200 | [diff] [blame] | 655 | while (hoplen > 0) { |
| 656 | opt = (struct ioam6_hdr *)p; |
Justin Iurman | 968691c | 2021-07-20 21:43:01 +0200 | [diff] [blame] | 657 | |
Justin Iurman | 752be29 | 2021-08-16 19:16:38 +0200 | [diff] [blame] | 658 | if (opt->opt_type == IPV6_TLV_IOAM && |
| 659 | opt->type == IOAM6_TYPE_PREALLOC) { |
| 660 | p += sizeof(*opt); |
| 661 | ret = func[tid](tid, (struct ioam6_trace_hdr *)p, |
| 662 | tr_type, ioam_ns); |
| 663 | break; |
Justin Iurman | 968691c | 2021-07-20 21:43:01 +0200 | [diff] [blame] | 664 | } |
Justin Iurman | 968691c | 2021-07-20 21:43:01 +0200 | [diff] [blame] | 665 | |
Justin Iurman | 752be29 | 2021-08-16 19:16:38 +0200 | [diff] [blame] | 666 | p += opt->opt_len + 2; |
| 667 | hoplen -= opt->opt_len + 2; |
| 668 | } |
Justin Iurman | 968691c | 2021-07-20 21:43:01 +0200 | [diff] [blame] | 669 | close: |
| 670 | close(fd); |
| 671 | out: |
Justin Iurman | 968691c | 2021-07-20 21:43:01 +0200 | [diff] [blame] | 672 | return ret; |
| 673 | } |