| 1 | /* |
| 2 | * Testsuite for eBPF verifier |
| 3 | * |
| 4 | * Copyright (c) 2014 PLUMgrid, http://plumgrid.com |
| 5 | * |
| 6 | * This program is free software; you can redistribute it and/or |
| 7 | * modify it under the terms of version 2 of the GNU General Public |
| 8 | * License as published by the Free Software Foundation. |
| 9 | */ |
| 10 | #include <stdio.h> |
| 11 | #include <unistd.h> |
| 12 | #include <linux/bpf.h> |
| 13 | #include <errno.h> |
| 14 | #include <linux/unistd.h> |
| 15 | #include <string.h> |
| 16 | #include <linux/filter.h> |
| 17 | #include <stddef.h> |
| 18 | #include <stdbool.h> |
| 19 | #include <sys/resource.h> |
| 20 | #include "libbpf.h" |
| 21 | |
| 22 | #define MAX_INSNS 512 |
| 23 | #define ARRAY_SIZE(x) (sizeof(x) / sizeof(*(x))) |
| 24 | |
| 25 | #define MAX_FIXUPS 8 |
| 26 | |
| 27 | struct bpf_test { |
| 28 | const char *descr; |
| 29 | struct bpf_insn insns[MAX_INSNS]; |
| 30 | int fixup[MAX_FIXUPS]; |
| 31 | int prog_array_fixup[MAX_FIXUPS]; |
| 32 | const char *errstr; |
| 33 | const char *errstr_unpriv; |
| 34 | enum { |
| 35 | UNDEF, |
| 36 | ACCEPT, |
| 37 | REJECT |
| 38 | } result, result_unpriv; |
| 39 | enum bpf_prog_type prog_type; |
| 40 | }; |
| 41 | |
| 42 | static struct bpf_test tests[] = { |
| 43 | { |
| 44 | "add+sub+mul", |
| 45 | .insns = { |
| 46 | BPF_MOV64_IMM(BPF_REG_1, 1), |
| 47 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, 2), |
| 48 | BPF_MOV64_IMM(BPF_REG_2, 3), |
| 49 | BPF_ALU64_REG(BPF_SUB, BPF_REG_1, BPF_REG_2), |
| 50 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, -1), |
| 51 | BPF_ALU64_IMM(BPF_MUL, BPF_REG_1, 3), |
| 52 | BPF_MOV64_REG(BPF_REG_0, BPF_REG_1), |
| 53 | BPF_EXIT_INSN(), |
| 54 | }, |
| 55 | .result = ACCEPT, |
| 56 | }, |
| 57 | { |
| 58 | "unreachable", |
| 59 | .insns = { |
| 60 | BPF_EXIT_INSN(), |
| 61 | BPF_EXIT_INSN(), |
| 62 | }, |
| 63 | .errstr = "unreachable", |
| 64 | .result = REJECT, |
| 65 | }, |
| 66 | { |
| 67 | "unreachable2", |
| 68 | .insns = { |
| 69 | BPF_JMP_IMM(BPF_JA, 0, 0, 1), |
| 70 | BPF_JMP_IMM(BPF_JA, 0, 0, 0), |
| 71 | BPF_EXIT_INSN(), |
| 72 | }, |
| 73 | .errstr = "unreachable", |
| 74 | .result = REJECT, |
| 75 | }, |
| 76 | { |
| 77 | "out of range jump", |
| 78 | .insns = { |
| 79 | BPF_JMP_IMM(BPF_JA, 0, 0, 1), |
| 80 | BPF_EXIT_INSN(), |
| 81 | }, |
| 82 | .errstr = "jump out of range", |
| 83 | .result = REJECT, |
| 84 | }, |
| 85 | { |
| 86 | "out of range jump2", |
| 87 | .insns = { |
| 88 | BPF_JMP_IMM(BPF_JA, 0, 0, -2), |
| 89 | BPF_EXIT_INSN(), |
| 90 | }, |
| 91 | .errstr = "jump out of range", |
| 92 | .result = REJECT, |
| 93 | }, |
| 94 | { |
| 95 | "test1 ld_imm64", |
| 96 | .insns = { |
| 97 | BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, 0, 1), |
| 98 | BPF_LD_IMM64(BPF_REG_0, 0), |
| 99 | BPF_LD_IMM64(BPF_REG_0, 0), |
| 100 | BPF_LD_IMM64(BPF_REG_0, 1), |
| 101 | BPF_LD_IMM64(BPF_REG_0, 1), |
| 102 | BPF_MOV64_IMM(BPF_REG_0, 2), |
| 103 | BPF_EXIT_INSN(), |
| 104 | }, |
| 105 | .errstr = "invalid BPF_LD_IMM insn", |
| 106 | .errstr_unpriv = "R1 pointer comparison", |
| 107 | .result = REJECT, |
| 108 | }, |
| 109 | { |
| 110 | "test2 ld_imm64", |
| 111 | .insns = { |
| 112 | BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, 0, 1), |
| 113 | BPF_LD_IMM64(BPF_REG_0, 0), |
| 114 | BPF_LD_IMM64(BPF_REG_0, 0), |
| 115 | BPF_LD_IMM64(BPF_REG_0, 1), |
| 116 | BPF_LD_IMM64(BPF_REG_0, 1), |
| 117 | BPF_EXIT_INSN(), |
| 118 | }, |
| 119 | .errstr = "invalid BPF_LD_IMM insn", |
| 120 | .errstr_unpriv = "R1 pointer comparison", |
| 121 | .result = REJECT, |
| 122 | }, |
| 123 | { |
| 124 | "test3 ld_imm64", |
| 125 | .insns = { |
| 126 | BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, 0, 1), |
| 127 | BPF_RAW_INSN(BPF_LD | BPF_IMM | BPF_DW, 0, 0, 0, 0), |
| 128 | BPF_LD_IMM64(BPF_REG_0, 0), |
| 129 | BPF_LD_IMM64(BPF_REG_0, 0), |
| 130 | BPF_LD_IMM64(BPF_REG_0, 1), |
| 131 | BPF_LD_IMM64(BPF_REG_0, 1), |
| 132 | BPF_EXIT_INSN(), |
| 133 | }, |
| 134 | .errstr = "invalid bpf_ld_imm64 insn", |
| 135 | .result = REJECT, |
| 136 | }, |
| 137 | { |
| 138 | "test4 ld_imm64", |
| 139 | .insns = { |
| 140 | BPF_RAW_INSN(BPF_LD | BPF_IMM | BPF_DW, 0, 0, 0, 0), |
| 141 | BPF_EXIT_INSN(), |
| 142 | }, |
| 143 | .errstr = "invalid bpf_ld_imm64 insn", |
| 144 | .result = REJECT, |
| 145 | }, |
| 146 | { |
| 147 | "test5 ld_imm64", |
| 148 | .insns = { |
| 149 | BPF_RAW_INSN(BPF_LD | BPF_IMM | BPF_DW, 0, 0, 0, 0), |
| 150 | }, |
| 151 | .errstr = "invalid bpf_ld_imm64 insn", |
| 152 | .result = REJECT, |
| 153 | }, |
| 154 | { |
| 155 | "no bpf_exit", |
| 156 | .insns = { |
| 157 | BPF_ALU64_REG(BPF_MOV, BPF_REG_0, BPF_REG_2), |
| 158 | }, |
| 159 | .errstr = "jump out of range", |
| 160 | .result = REJECT, |
| 161 | }, |
| 162 | { |
| 163 | "loop (back-edge)", |
| 164 | .insns = { |
| 165 | BPF_JMP_IMM(BPF_JA, 0, 0, -1), |
| 166 | BPF_EXIT_INSN(), |
| 167 | }, |
| 168 | .errstr = "back-edge", |
| 169 | .result = REJECT, |
| 170 | }, |
| 171 | { |
| 172 | "loop2 (back-edge)", |
| 173 | .insns = { |
| 174 | BPF_MOV64_REG(BPF_REG_1, BPF_REG_0), |
| 175 | BPF_MOV64_REG(BPF_REG_2, BPF_REG_0), |
| 176 | BPF_MOV64_REG(BPF_REG_3, BPF_REG_0), |
| 177 | BPF_JMP_IMM(BPF_JA, 0, 0, -4), |
| 178 | BPF_EXIT_INSN(), |
| 179 | }, |
| 180 | .errstr = "back-edge", |
| 181 | .result = REJECT, |
| 182 | }, |
| 183 | { |
| 184 | "conditional loop", |
| 185 | .insns = { |
| 186 | BPF_MOV64_REG(BPF_REG_1, BPF_REG_0), |
| 187 | BPF_MOV64_REG(BPF_REG_2, BPF_REG_0), |
| 188 | BPF_MOV64_REG(BPF_REG_3, BPF_REG_0), |
| 189 | BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, 0, -3), |
| 190 | BPF_EXIT_INSN(), |
| 191 | }, |
| 192 | .errstr = "back-edge", |
| 193 | .result = REJECT, |
| 194 | }, |
| 195 | { |
| 196 | "read uninitialized register", |
| 197 | .insns = { |
| 198 | BPF_MOV64_REG(BPF_REG_0, BPF_REG_2), |
| 199 | BPF_EXIT_INSN(), |
| 200 | }, |
| 201 | .errstr = "R2 !read_ok", |
| 202 | .result = REJECT, |
| 203 | }, |
| 204 | { |
| 205 | "read invalid register", |
| 206 | .insns = { |
| 207 | BPF_MOV64_REG(BPF_REG_0, -1), |
| 208 | BPF_EXIT_INSN(), |
| 209 | }, |
| 210 | .errstr = "R15 is invalid", |
| 211 | .result = REJECT, |
| 212 | }, |
| 213 | { |
| 214 | "program doesn't init R0 before exit", |
| 215 | .insns = { |
| 216 | BPF_ALU64_REG(BPF_MOV, BPF_REG_2, BPF_REG_1), |
| 217 | BPF_EXIT_INSN(), |
| 218 | }, |
| 219 | .errstr = "R0 !read_ok", |
| 220 | .result = REJECT, |
| 221 | }, |
| 222 | { |
| 223 | "program doesn't init R0 before exit in all branches", |
| 224 | .insns = { |
| 225 | BPF_JMP_IMM(BPF_JGE, BPF_REG_1, 0, 2), |
| 226 | BPF_MOV64_IMM(BPF_REG_0, 1), |
| 227 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_0, 2), |
| 228 | BPF_EXIT_INSN(), |
| 229 | }, |
| 230 | .errstr = "R0 !read_ok", |
| 231 | .errstr_unpriv = "R1 pointer comparison", |
| 232 | .result = REJECT, |
| 233 | }, |
| 234 | { |
| 235 | "stack out of bounds", |
| 236 | .insns = { |
| 237 | BPF_ST_MEM(BPF_DW, BPF_REG_10, 8, 0), |
| 238 | BPF_EXIT_INSN(), |
| 239 | }, |
| 240 | .errstr = "invalid stack", |
| 241 | .result = REJECT, |
| 242 | }, |
| 243 | { |
| 244 | "invalid call insn1", |
| 245 | .insns = { |
| 246 | BPF_RAW_INSN(BPF_JMP | BPF_CALL | BPF_X, 0, 0, 0, 0), |
| 247 | BPF_EXIT_INSN(), |
| 248 | }, |
| 249 | .errstr = "BPF_CALL uses reserved", |
| 250 | .result = REJECT, |
| 251 | }, |
| 252 | { |
| 253 | "invalid call insn2", |
| 254 | .insns = { |
| 255 | BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 1, 0), |
| 256 | BPF_EXIT_INSN(), |
| 257 | }, |
| 258 | .errstr = "BPF_CALL uses reserved", |
| 259 | .result = REJECT, |
| 260 | }, |
| 261 | { |
| 262 | "invalid function call", |
| 263 | .insns = { |
| 264 | BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, 1234567), |
| 265 | BPF_EXIT_INSN(), |
| 266 | }, |
| 267 | .errstr = "invalid func 1234567", |
| 268 | .result = REJECT, |
| 269 | }, |
| 270 | { |
| 271 | "uninitialized stack1", |
| 272 | .insns = { |
| 273 | BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), |
| 274 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8), |
| 275 | BPF_LD_MAP_FD(BPF_REG_1, 0), |
| 276 | BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, BPF_FUNC_map_lookup_elem), |
| 277 | BPF_EXIT_INSN(), |
| 278 | }, |
| 279 | .fixup = {2}, |
| 280 | .errstr = "invalid indirect read from stack", |
| 281 | .result = REJECT, |
| 282 | }, |
| 283 | { |
| 284 | "uninitialized stack2", |
| 285 | .insns = { |
| 286 | BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), |
| 287 | BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_2, -8), |
| 288 | BPF_EXIT_INSN(), |
| 289 | }, |
| 290 | .errstr = "invalid read from stack", |
| 291 | .result = REJECT, |
| 292 | }, |
| 293 | { |
| 294 | "check valid spill/fill", |
| 295 | .insns = { |
| 296 | /* spill R1(ctx) into stack */ |
| 297 | BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_1, -8), |
| 298 | |
| 299 | /* fill it back into R2 */ |
| 300 | BPF_LDX_MEM(BPF_DW, BPF_REG_2, BPF_REG_10, -8), |
| 301 | |
| 302 | /* should be able to access R0 = *(R2 + 8) */ |
| 303 | /* BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_2, 8), */ |
| 304 | BPF_MOV64_REG(BPF_REG_0, BPF_REG_2), |
| 305 | BPF_EXIT_INSN(), |
| 306 | }, |
| 307 | .errstr_unpriv = "R0 leaks addr", |
| 308 | .result = ACCEPT, |
| 309 | .result_unpriv = REJECT, |
| 310 | }, |
| 311 | { |
| 312 | "check valid spill/fill, skb mark", |
| 313 | .insns = { |
| 314 | BPF_ALU64_REG(BPF_MOV, BPF_REG_6, BPF_REG_1), |
| 315 | BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_6, -8), |
| 316 | BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_10, -8), |
| 317 | BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_0, |
| 318 | offsetof(struct __sk_buff, mark)), |
| 319 | BPF_EXIT_INSN(), |
| 320 | }, |
| 321 | .result = ACCEPT, |
| 322 | .result_unpriv = ACCEPT, |
| 323 | }, |
| 324 | { |
| 325 | "check corrupted spill/fill", |
| 326 | .insns = { |
| 327 | /* spill R1(ctx) into stack */ |
| 328 | BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_1, -8), |
| 329 | |
| 330 | /* mess up with R1 pointer on stack */ |
| 331 | BPF_ST_MEM(BPF_B, BPF_REG_10, -7, 0x23), |
| 332 | |
| 333 | /* fill back into R0 should fail */ |
| 334 | BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_10, -8), |
| 335 | |
| 336 | BPF_EXIT_INSN(), |
| 337 | }, |
| 338 | .errstr_unpriv = "attempt to corrupt spilled", |
| 339 | .errstr = "corrupted spill", |
| 340 | .result = REJECT, |
| 341 | }, |
| 342 | { |
| 343 | "invalid src register in STX", |
| 344 | .insns = { |
| 345 | BPF_STX_MEM(BPF_B, BPF_REG_10, -1, -1), |
| 346 | BPF_EXIT_INSN(), |
| 347 | }, |
| 348 | .errstr = "R15 is invalid", |
| 349 | .result = REJECT, |
| 350 | }, |
| 351 | { |
| 352 | "invalid dst register in STX", |
| 353 | .insns = { |
| 354 | BPF_STX_MEM(BPF_B, 14, BPF_REG_10, -1), |
| 355 | BPF_EXIT_INSN(), |
| 356 | }, |
| 357 | .errstr = "R14 is invalid", |
| 358 | .result = REJECT, |
| 359 | }, |
| 360 | { |
| 361 | "invalid dst register in ST", |
| 362 | .insns = { |
| 363 | BPF_ST_MEM(BPF_B, 14, -1, -1), |
| 364 | BPF_EXIT_INSN(), |
| 365 | }, |
| 366 | .errstr = "R14 is invalid", |
| 367 | .result = REJECT, |
| 368 | }, |
| 369 | { |
| 370 | "invalid src register in LDX", |
| 371 | .insns = { |
| 372 | BPF_LDX_MEM(BPF_B, BPF_REG_0, 12, 0), |
| 373 | BPF_EXIT_INSN(), |
| 374 | }, |
| 375 | .errstr = "R12 is invalid", |
| 376 | .result = REJECT, |
| 377 | }, |
| 378 | { |
| 379 | "invalid dst register in LDX", |
| 380 | .insns = { |
| 381 | BPF_LDX_MEM(BPF_B, 11, BPF_REG_1, 0), |
| 382 | BPF_EXIT_INSN(), |
| 383 | }, |
| 384 | .errstr = "R11 is invalid", |
| 385 | .result = REJECT, |
| 386 | }, |
| 387 | { |
| 388 | "junk insn", |
| 389 | .insns = { |
| 390 | BPF_RAW_INSN(0, 0, 0, 0, 0), |
| 391 | BPF_EXIT_INSN(), |
| 392 | }, |
| 393 | .errstr = "invalid BPF_LD_IMM", |
| 394 | .result = REJECT, |
| 395 | }, |
| 396 | { |
| 397 | "junk insn2", |
| 398 | .insns = { |
| 399 | BPF_RAW_INSN(1, 0, 0, 0, 0), |
| 400 | BPF_EXIT_INSN(), |
| 401 | }, |
| 402 | .errstr = "BPF_LDX uses reserved fields", |
| 403 | .result = REJECT, |
| 404 | }, |
| 405 | { |
| 406 | "junk insn3", |
| 407 | .insns = { |
| 408 | BPF_RAW_INSN(-1, 0, 0, 0, 0), |
| 409 | BPF_EXIT_INSN(), |
| 410 | }, |
| 411 | .errstr = "invalid BPF_ALU opcode f0", |
| 412 | .result = REJECT, |
| 413 | }, |
| 414 | { |
| 415 | "junk insn4", |
| 416 | .insns = { |
| 417 | BPF_RAW_INSN(-1, -1, -1, -1, -1), |
| 418 | BPF_EXIT_INSN(), |
| 419 | }, |
| 420 | .errstr = "invalid BPF_ALU opcode f0", |
| 421 | .result = REJECT, |
| 422 | }, |
| 423 | { |
| 424 | "junk insn5", |
| 425 | .insns = { |
| 426 | BPF_RAW_INSN(0x7f, -1, -1, -1, -1), |
| 427 | BPF_EXIT_INSN(), |
| 428 | }, |
| 429 | .errstr = "BPF_ALU uses reserved fields", |
| 430 | .result = REJECT, |
| 431 | }, |
| 432 | { |
| 433 | "misaligned read from stack", |
| 434 | .insns = { |
| 435 | BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), |
| 436 | BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_2, -4), |
| 437 | BPF_EXIT_INSN(), |
| 438 | }, |
| 439 | .errstr = "misaligned access", |
| 440 | .result = REJECT, |
| 441 | }, |
| 442 | { |
| 443 | "invalid map_fd for function call", |
| 444 | .insns = { |
| 445 | BPF_ST_MEM(BPF_DW, BPF_REG_10, -8, 0), |
| 446 | BPF_ALU64_REG(BPF_MOV, BPF_REG_2, BPF_REG_10), |
| 447 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8), |
| 448 | BPF_LD_MAP_FD(BPF_REG_1, 0), |
| 449 | BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, BPF_FUNC_map_delete_elem), |
| 450 | BPF_EXIT_INSN(), |
| 451 | }, |
| 452 | .errstr = "fd 0 is not pointing to valid bpf_map", |
| 453 | .result = REJECT, |
| 454 | }, |
| 455 | { |
| 456 | "don't check return value before access", |
| 457 | .insns = { |
| 458 | BPF_ST_MEM(BPF_DW, BPF_REG_10, -8, 0), |
| 459 | BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), |
| 460 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8), |
| 461 | BPF_LD_MAP_FD(BPF_REG_1, 0), |
| 462 | BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, BPF_FUNC_map_lookup_elem), |
| 463 | BPF_ST_MEM(BPF_DW, BPF_REG_0, 0, 0), |
| 464 | BPF_EXIT_INSN(), |
| 465 | }, |
| 466 | .fixup = {3}, |
| 467 | .errstr = "R0 invalid mem access 'map_value_or_null'", |
| 468 | .result = REJECT, |
| 469 | }, |
| 470 | { |
| 471 | "access memory with incorrect alignment", |
| 472 | .insns = { |
| 473 | BPF_ST_MEM(BPF_DW, BPF_REG_10, -8, 0), |
| 474 | BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), |
| 475 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8), |
| 476 | BPF_LD_MAP_FD(BPF_REG_1, 0), |
| 477 | BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, BPF_FUNC_map_lookup_elem), |
| 478 | BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 1), |
| 479 | BPF_ST_MEM(BPF_DW, BPF_REG_0, 4, 0), |
| 480 | BPF_EXIT_INSN(), |
| 481 | }, |
| 482 | .fixup = {3}, |
| 483 | .errstr = "misaligned access", |
| 484 | .result = REJECT, |
| 485 | }, |
| 486 | { |
| 487 | "sometimes access memory with incorrect alignment", |
| 488 | .insns = { |
| 489 | BPF_ST_MEM(BPF_DW, BPF_REG_10, -8, 0), |
| 490 | BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), |
| 491 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8), |
| 492 | BPF_LD_MAP_FD(BPF_REG_1, 0), |
| 493 | BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, BPF_FUNC_map_lookup_elem), |
| 494 | BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 2), |
| 495 | BPF_ST_MEM(BPF_DW, BPF_REG_0, 0, 0), |
| 496 | BPF_EXIT_INSN(), |
| 497 | BPF_ST_MEM(BPF_DW, BPF_REG_0, 0, 1), |
| 498 | BPF_EXIT_INSN(), |
| 499 | }, |
| 500 | .fixup = {3}, |
| 501 | .errstr = "R0 invalid mem access", |
| 502 | .errstr_unpriv = "R0 leaks addr", |
| 503 | .result = REJECT, |
| 504 | }, |
| 505 | { |
| 506 | "jump test 1", |
| 507 | .insns = { |
| 508 | BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), |
| 509 | BPF_STX_MEM(BPF_DW, BPF_REG_2, BPF_REG_1, -8), |
| 510 | BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, 0, 1), |
| 511 | BPF_ST_MEM(BPF_DW, BPF_REG_2, -8, 0), |
| 512 | BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, 1, 1), |
| 513 | BPF_ST_MEM(BPF_DW, BPF_REG_2, -16, 1), |
| 514 | BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, 2, 1), |
| 515 | BPF_ST_MEM(BPF_DW, BPF_REG_2, -8, 2), |
| 516 | BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, 3, 1), |
| 517 | BPF_ST_MEM(BPF_DW, BPF_REG_2, -16, 3), |
| 518 | BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, 4, 1), |
| 519 | BPF_ST_MEM(BPF_DW, BPF_REG_2, -8, 4), |
| 520 | BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, 5, 1), |
| 521 | BPF_ST_MEM(BPF_DW, BPF_REG_2, -32, 5), |
| 522 | BPF_MOV64_IMM(BPF_REG_0, 0), |
| 523 | BPF_EXIT_INSN(), |
| 524 | }, |
| 525 | .errstr_unpriv = "R1 pointer comparison", |
| 526 | .result_unpriv = REJECT, |
| 527 | .result = ACCEPT, |
| 528 | }, |
| 529 | { |
| 530 | "jump test 2", |
| 531 | .insns = { |
| 532 | BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), |
| 533 | BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, 0, 2), |
| 534 | BPF_ST_MEM(BPF_DW, BPF_REG_2, -8, 0), |
| 535 | BPF_JMP_IMM(BPF_JA, 0, 0, 14), |
| 536 | BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, 1, 2), |
| 537 | BPF_ST_MEM(BPF_DW, BPF_REG_2, -16, 0), |
| 538 | BPF_JMP_IMM(BPF_JA, 0, 0, 11), |
| 539 | BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, 2, 2), |
| 540 | BPF_ST_MEM(BPF_DW, BPF_REG_2, -32, 0), |
| 541 | BPF_JMP_IMM(BPF_JA, 0, 0, 8), |
| 542 | BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, 3, 2), |
| 543 | BPF_ST_MEM(BPF_DW, BPF_REG_2, -40, 0), |
| 544 | BPF_JMP_IMM(BPF_JA, 0, 0, 5), |
| 545 | BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, 4, 2), |
| 546 | BPF_ST_MEM(BPF_DW, BPF_REG_2, -48, 0), |
| 547 | BPF_JMP_IMM(BPF_JA, 0, 0, 2), |
| 548 | BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, 5, 1), |
| 549 | BPF_ST_MEM(BPF_DW, BPF_REG_2, -56, 0), |
| 550 | BPF_MOV64_IMM(BPF_REG_0, 0), |
| 551 | BPF_EXIT_INSN(), |
| 552 | }, |
| 553 | .errstr_unpriv = "R1 pointer comparison", |
| 554 | .result_unpriv = REJECT, |
| 555 | .result = ACCEPT, |
| 556 | }, |
| 557 | { |
| 558 | "jump test 3", |
| 559 | .insns = { |
| 560 | BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), |
| 561 | BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, 0, 3), |
| 562 | BPF_ST_MEM(BPF_DW, BPF_REG_2, -8, 0), |
| 563 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8), |
| 564 | BPF_JMP_IMM(BPF_JA, 0, 0, 19), |
| 565 | BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, 1, 3), |
| 566 | BPF_ST_MEM(BPF_DW, BPF_REG_2, -16, 0), |
| 567 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -16), |
| 568 | BPF_JMP_IMM(BPF_JA, 0, 0, 15), |
| 569 | BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, 2, 3), |
| 570 | BPF_ST_MEM(BPF_DW, BPF_REG_2, -32, 0), |
| 571 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -32), |
| 572 | BPF_JMP_IMM(BPF_JA, 0, 0, 11), |
| 573 | BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, 3, 3), |
| 574 | BPF_ST_MEM(BPF_DW, BPF_REG_2, -40, 0), |
| 575 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -40), |
| 576 | BPF_JMP_IMM(BPF_JA, 0, 0, 7), |
| 577 | BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, 4, 3), |
| 578 | BPF_ST_MEM(BPF_DW, BPF_REG_2, -48, 0), |
| 579 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -48), |
| 580 | BPF_JMP_IMM(BPF_JA, 0, 0, 3), |
| 581 | BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, 5, 0), |
| 582 | BPF_ST_MEM(BPF_DW, BPF_REG_2, -56, 0), |
| 583 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -56), |
| 584 | BPF_LD_MAP_FD(BPF_REG_1, 0), |
| 585 | BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, BPF_FUNC_map_delete_elem), |
| 586 | BPF_EXIT_INSN(), |
| 587 | }, |
| 588 | .fixup = {24}, |
| 589 | .errstr_unpriv = "R1 pointer comparison", |
| 590 | .result_unpriv = REJECT, |
| 591 | .result = ACCEPT, |
| 592 | }, |
| 593 | { |
| 594 | "jump test 4", |
| 595 | .insns = { |
| 596 | BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, BPF_REG_10, 1), |
| 597 | BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, BPF_REG_10, 2), |
| 598 | BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, BPF_REG_10, 3), |
| 599 | BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, BPF_REG_10, 4), |
| 600 | BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, BPF_REG_10, 1), |
| 601 | BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, BPF_REG_10, 2), |
| 602 | BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, BPF_REG_10, 3), |
| 603 | BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, BPF_REG_10, 4), |
| 604 | BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, BPF_REG_10, 1), |
| 605 | BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, BPF_REG_10, 2), |
| 606 | BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, BPF_REG_10, 3), |
| 607 | BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, BPF_REG_10, 4), |
| 608 | BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, BPF_REG_10, 1), |
| 609 | BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, BPF_REG_10, 2), |
| 610 | BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, BPF_REG_10, 3), |
| 611 | BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, BPF_REG_10, 4), |
| 612 | BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, BPF_REG_10, 1), |
| 613 | BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, BPF_REG_10, 2), |
| 614 | BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, BPF_REG_10, 3), |
| 615 | BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, BPF_REG_10, 4), |
| 616 | BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, BPF_REG_10, 1), |
| 617 | BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, BPF_REG_10, 2), |
| 618 | BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, BPF_REG_10, 3), |
| 619 | BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, BPF_REG_10, 4), |
| 620 | BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, BPF_REG_10, 1), |
| 621 | BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, BPF_REG_10, 2), |
| 622 | BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, BPF_REG_10, 3), |
| 623 | BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, BPF_REG_10, 4), |
| 624 | BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, BPF_REG_10, 1), |
| 625 | BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, BPF_REG_10, 2), |
| 626 | BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, BPF_REG_10, 3), |
| 627 | BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, BPF_REG_10, 4), |
| 628 | BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, BPF_REG_10, 1), |
| 629 | BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, BPF_REG_10, 2), |
| 630 | BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, BPF_REG_10, 3), |
| 631 | BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, BPF_REG_10, 4), |
| 632 | BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, BPF_REG_10, 0), |
| 633 | BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, BPF_REG_10, 0), |
| 634 | BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, BPF_REG_10, 0), |
| 635 | BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, BPF_REG_10, 0), |
| 636 | BPF_MOV64_IMM(BPF_REG_0, 0), |
| 637 | BPF_EXIT_INSN(), |
| 638 | }, |
| 639 | .errstr_unpriv = "R1 pointer comparison", |
| 640 | .result_unpriv = REJECT, |
| 641 | .result = ACCEPT, |
| 642 | }, |
| 643 | { |
| 644 | "jump test 5", |
| 645 | .insns = { |
| 646 | BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), |
| 647 | BPF_MOV64_REG(BPF_REG_3, BPF_REG_2), |
| 648 | BPF_JMP_IMM(BPF_JGE, BPF_REG_1, 0, 2), |
| 649 | BPF_STX_MEM(BPF_DW, BPF_REG_2, BPF_REG_3, -8), |
| 650 | BPF_JMP_IMM(BPF_JA, 0, 0, 2), |
| 651 | BPF_STX_MEM(BPF_DW, BPF_REG_2, BPF_REG_2, -8), |
| 652 | BPF_JMP_IMM(BPF_JA, 0, 0, 0), |
| 653 | BPF_MOV64_IMM(BPF_REG_0, 0), |
| 654 | BPF_JMP_IMM(BPF_JGE, BPF_REG_1, 0, 2), |
| 655 | BPF_STX_MEM(BPF_DW, BPF_REG_2, BPF_REG_3, -8), |
| 656 | BPF_JMP_IMM(BPF_JA, 0, 0, 2), |
| 657 | BPF_STX_MEM(BPF_DW, BPF_REG_2, BPF_REG_2, -8), |
| 658 | BPF_JMP_IMM(BPF_JA, 0, 0, 0), |
| 659 | BPF_MOV64_IMM(BPF_REG_0, 0), |
| 660 | BPF_JMP_IMM(BPF_JGE, BPF_REG_1, 0, 2), |
| 661 | BPF_STX_MEM(BPF_DW, BPF_REG_2, BPF_REG_3, -8), |
| 662 | BPF_JMP_IMM(BPF_JA, 0, 0, 2), |
| 663 | BPF_STX_MEM(BPF_DW, BPF_REG_2, BPF_REG_2, -8), |
| 664 | BPF_JMP_IMM(BPF_JA, 0, 0, 0), |
| 665 | BPF_MOV64_IMM(BPF_REG_0, 0), |
| 666 | BPF_JMP_IMM(BPF_JGE, BPF_REG_1, 0, 2), |
| 667 | BPF_STX_MEM(BPF_DW, BPF_REG_2, BPF_REG_3, -8), |
| 668 | BPF_JMP_IMM(BPF_JA, 0, 0, 2), |
| 669 | BPF_STX_MEM(BPF_DW, BPF_REG_2, BPF_REG_2, -8), |
| 670 | BPF_JMP_IMM(BPF_JA, 0, 0, 0), |
| 671 | BPF_MOV64_IMM(BPF_REG_0, 0), |
| 672 | BPF_JMP_IMM(BPF_JGE, BPF_REG_1, 0, 2), |
| 673 | BPF_STX_MEM(BPF_DW, BPF_REG_2, BPF_REG_3, -8), |
| 674 | BPF_JMP_IMM(BPF_JA, 0, 0, 2), |
| 675 | BPF_STX_MEM(BPF_DW, BPF_REG_2, BPF_REG_2, -8), |
| 676 | BPF_JMP_IMM(BPF_JA, 0, 0, 0), |
| 677 | BPF_MOV64_IMM(BPF_REG_0, 0), |
| 678 | BPF_EXIT_INSN(), |
| 679 | }, |
| 680 | .errstr_unpriv = "R1 pointer comparison", |
| 681 | .result_unpriv = REJECT, |
| 682 | .result = ACCEPT, |
| 683 | }, |
| 684 | { |
| 685 | "access skb fields ok", |
| 686 | .insns = { |
| 687 | BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1, |
| 688 | offsetof(struct __sk_buff, len)), |
| 689 | BPF_JMP_IMM(BPF_JGE, BPF_REG_0, 0, 1), |
| 690 | BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1, |
| 691 | offsetof(struct __sk_buff, mark)), |
| 692 | BPF_JMP_IMM(BPF_JGE, BPF_REG_0, 0, 1), |
| 693 | BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1, |
| 694 | offsetof(struct __sk_buff, pkt_type)), |
| 695 | BPF_JMP_IMM(BPF_JGE, BPF_REG_0, 0, 1), |
| 696 | BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1, |
| 697 | offsetof(struct __sk_buff, queue_mapping)), |
| 698 | BPF_JMP_IMM(BPF_JGE, BPF_REG_0, 0, 0), |
| 699 | BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1, |
| 700 | offsetof(struct __sk_buff, protocol)), |
| 701 | BPF_JMP_IMM(BPF_JGE, BPF_REG_0, 0, 0), |
| 702 | BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1, |
| 703 | offsetof(struct __sk_buff, vlan_present)), |
| 704 | BPF_JMP_IMM(BPF_JGE, BPF_REG_0, 0, 0), |
| 705 | BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1, |
| 706 | offsetof(struct __sk_buff, vlan_tci)), |
| 707 | BPF_JMP_IMM(BPF_JGE, BPF_REG_0, 0, 0), |
| 708 | BPF_EXIT_INSN(), |
| 709 | }, |
| 710 | .result = ACCEPT, |
| 711 | }, |
| 712 | { |
| 713 | "access skb fields bad1", |
| 714 | .insns = { |
| 715 | BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1, -4), |
| 716 | BPF_EXIT_INSN(), |
| 717 | }, |
| 718 | .errstr = "invalid bpf_context access", |
| 719 | .result = REJECT, |
| 720 | }, |
| 721 | { |
| 722 | "access skb fields bad2", |
| 723 | .insns = { |
| 724 | BPF_JMP_IMM(BPF_JGE, BPF_REG_1, 0, 9), |
| 725 | BPF_ST_MEM(BPF_DW, BPF_REG_10, -8, 0), |
| 726 | BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), |
| 727 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8), |
| 728 | BPF_LD_MAP_FD(BPF_REG_1, 0), |
| 729 | BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, BPF_FUNC_map_lookup_elem), |
| 730 | BPF_JMP_IMM(BPF_JNE, BPF_REG_0, 0, 1), |
| 731 | BPF_EXIT_INSN(), |
| 732 | BPF_MOV64_REG(BPF_REG_1, BPF_REG_0), |
| 733 | BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1, |
| 734 | offsetof(struct __sk_buff, pkt_type)), |
| 735 | BPF_EXIT_INSN(), |
| 736 | }, |
| 737 | .fixup = {4}, |
| 738 | .errstr = "different pointers", |
| 739 | .errstr_unpriv = "R1 pointer comparison", |
| 740 | .result = REJECT, |
| 741 | }, |
| 742 | { |
| 743 | "access skb fields bad3", |
| 744 | .insns = { |
| 745 | BPF_JMP_IMM(BPF_JGE, BPF_REG_1, 0, 2), |
| 746 | BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1, |
| 747 | offsetof(struct __sk_buff, pkt_type)), |
| 748 | BPF_EXIT_INSN(), |
| 749 | BPF_ST_MEM(BPF_DW, BPF_REG_10, -8, 0), |
| 750 | BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), |
| 751 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8), |
| 752 | BPF_LD_MAP_FD(BPF_REG_1, 0), |
| 753 | BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, BPF_FUNC_map_lookup_elem), |
| 754 | BPF_JMP_IMM(BPF_JNE, BPF_REG_0, 0, 1), |
| 755 | BPF_EXIT_INSN(), |
| 756 | BPF_MOV64_REG(BPF_REG_1, BPF_REG_0), |
| 757 | BPF_JMP_IMM(BPF_JA, 0, 0, -12), |
| 758 | }, |
| 759 | .fixup = {6}, |
| 760 | .errstr = "different pointers", |
| 761 | .errstr_unpriv = "R1 pointer comparison", |
| 762 | .result = REJECT, |
| 763 | }, |
| 764 | { |
| 765 | "access skb fields bad4", |
| 766 | .insns = { |
| 767 | BPF_JMP_IMM(BPF_JGE, BPF_REG_1, 0, 3), |
| 768 | BPF_LDX_MEM(BPF_W, BPF_REG_1, BPF_REG_1, |
| 769 | offsetof(struct __sk_buff, len)), |
| 770 | BPF_MOV64_IMM(BPF_REG_0, 0), |
| 771 | BPF_EXIT_INSN(), |
| 772 | BPF_ST_MEM(BPF_DW, BPF_REG_10, -8, 0), |
| 773 | BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), |
| 774 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8), |
| 775 | BPF_LD_MAP_FD(BPF_REG_1, 0), |
| 776 | BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, BPF_FUNC_map_lookup_elem), |
| 777 | BPF_JMP_IMM(BPF_JNE, BPF_REG_0, 0, 1), |
| 778 | BPF_EXIT_INSN(), |
| 779 | BPF_MOV64_REG(BPF_REG_1, BPF_REG_0), |
| 780 | BPF_JMP_IMM(BPF_JA, 0, 0, -13), |
| 781 | }, |
| 782 | .fixup = {7}, |
| 783 | .errstr = "different pointers", |
| 784 | .errstr_unpriv = "R1 pointer comparison", |
| 785 | .result = REJECT, |
| 786 | }, |
| 787 | { |
| 788 | "check skb->mark is not writeable by sockets", |
| 789 | .insns = { |
| 790 | BPF_STX_MEM(BPF_W, BPF_REG_1, BPF_REG_1, |
| 791 | offsetof(struct __sk_buff, mark)), |
| 792 | BPF_EXIT_INSN(), |
| 793 | }, |
| 794 | .errstr = "invalid bpf_context access", |
| 795 | .errstr_unpriv = "R1 leaks addr", |
| 796 | .result = REJECT, |
| 797 | }, |
| 798 | { |
| 799 | "check skb->tc_index is not writeable by sockets", |
| 800 | .insns = { |
| 801 | BPF_STX_MEM(BPF_W, BPF_REG_1, BPF_REG_1, |
| 802 | offsetof(struct __sk_buff, tc_index)), |
| 803 | BPF_EXIT_INSN(), |
| 804 | }, |
| 805 | .errstr = "invalid bpf_context access", |
| 806 | .errstr_unpriv = "R1 leaks addr", |
| 807 | .result = REJECT, |
| 808 | }, |
| 809 | { |
| 810 | "check non-u32 access to cb", |
| 811 | .insns = { |
| 812 | BPF_STX_MEM(BPF_H, BPF_REG_1, BPF_REG_1, |
| 813 | offsetof(struct __sk_buff, cb[0])), |
| 814 | BPF_EXIT_INSN(), |
| 815 | }, |
| 816 | .errstr = "invalid bpf_context access", |
| 817 | .errstr_unpriv = "R1 leaks addr", |
| 818 | .result = REJECT, |
| 819 | }, |
| 820 | { |
| 821 | "check out of range skb->cb access", |
| 822 | .insns = { |
| 823 | BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1, |
| 824 | offsetof(struct __sk_buff, cb[0]) + 256), |
| 825 | BPF_EXIT_INSN(), |
| 826 | }, |
| 827 | .errstr = "invalid bpf_context access", |
| 828 | .errstr_unpriv = "", |
| 829 | .result = REJECT, |
| 830 | .prog_type = BPF_PROG_TYPE_SCHED_ACT, |
| 831 | }, |
| 832 | { |
| 833 | "write skb fields from socket prog", |
| 834 | .insns = { |
| 835 | BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1, |
| 836 | offsetof(struct __sk_buff, cb[4])), |
| 837 | BPF_JMP_IMM(BPF_JGE, BPF_REG_0, 0, 1), |
| 838 | BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1, |
| 839 | offsetof(struct __sk_buff, mark)), |
| 840 | BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1, |
| 841 | offsetof(struct __sk_buff, tc_index)), |
| 842 | BPF_JMP_IMM(BPF_JGE, BPF_REG_0, 0, 1), |
| 843 | BPF_STX_MEM(BPF_W, BPF_REG_1, BPF_REG_1, |
| 844 | offsetof(struct __sk_buff, cb[0])), |
| 845 | BPF_STX_MEM(BPF_W, BPF_REG_1, BPF_REG_1, |
| 846 | offsetof(struct __sk_buff, cb[2])), |
| 847 | BPF_EXIT_INSN(), |
| 848 | }, |
| 849 | .result = ACCEPT, |
| 850 | .errstr_unpriv = "R1 leaks addr", |
| 851 | .result_unpriv = REJECT, |
| 852 | }, |
| 853 | { |
| 854 | "write skb fields from tc_cls_act prog", |
| 855 | .insns = { |
| 856 | BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1, |
| 857 | offsetof(struct __sk_buff, cb[0])), |
| 858 | BPF_STX_MEM(BPF_W, BPF_REG_1, BPF_REG_0, |
| 859 | offsetof(struct __sk_buff, mark)), |
| 860 | BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1, |
| 861 | offsetof(struct __sk_buff, tc_index)), |
| 862 | BPF_STX_MEM(BPF_W, BPF_REG_1, BPF_REG_0, |
| 863 | offsetof(struct __sk_buff, tc_index)), |
| 864 | BPF_STX_MEM(BPF_W, BPF_REG_1, BPF_REG_0, |
| 865 | offsetof(struct __sk_buff, cb[3])), |
| 866 | BPF_EXIT_INSN(), |
| 867 | }, |
| 868 | .errstr_unpriv = "", |
| 869 | .result_unpriv = REJECT, |
| 870 | .result = ACCEPT, |
| 871 | .prog_type = BPF_PROG_TYPE_SCHED_CLS, |
| 872 | }, |
| 873 | { |
| 874 | "PTR_TO_STACK store/load", |
| 875 | .insns = { |
| 876 | BPF_MOV64_REG(BPF_REG_1, BPF_REG_10), |
| 877 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, -10), |
| 878 | BPF_ST_MEM(BPF_DW, BPF_REG_1, 2, 0xfaceb00c), |
| 879 | BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_1, 2), |
| 880 | BPF_EXIT_INSN(), |
| 881 | }, |
| 882 | .result = ACCEPT, |
| 883 | }, |
| 884 | { |
| 885 | "PTR_TO_STACK store/load - bad alignment on off", |
| 886 | .insns = { |
| 887 | BPF_MOV64_REG(BPF_REG_1, BPF_REG_10), |
| 888 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, -8), |
| 889 | BPF_ST_MEM(BPF_DW, BPF_REG_1, 2, 0xfaceb00c), |
| 890 | BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_1, 2), |
| 891 | BPF_EXIT_INSN(), |
| 892 | }, |
| 893 | .result = REJECT, |
| 894 | .errstr = "misaligned access off -6 size 8", |
| 895 | }, |
| 896 | { |
| 897 | "PTR_TO_STACK store/load - bad alignment on reg", |
| 898 | .insns = { |
| 899 | BPF_MOV64_REG(BPF_REG_1, BPF_REG_10), |
| 900 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, -10), |
| 901 | BPF_ST_MEM(BPF_DW, BPF_REG_1, 8, 0xfaceb00c), |
| 902 | BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_1, 8), |
| 903 | BPF_EXIT_INSN(), |
| 904 | }, |
| 905 | .result = REJECT, |
| 906 | .errstr = "misaligned access off -2 size 8", |
| 907 | }, |
| 908 | { |
| 909 | "PTR_TO_STACK store/load - out of bounds low", |
| 910 | .insns = { |
| 911 | BPF_MOV64_REG(BPF_REG_1, BPF_REG_10), |
| 912 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, -80000), |
| 913 | BPF_ST_MEM(BPF_DW, BPF_REG_1, 8, 0xfaceb00c), |
| 914 | BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_1, 8), |
| 915 | BPF_EXIT_INSN(), |
| 916 | }, |
| 917 | .result = REJECT, |
| 918 | .errstr = "invalid stack off=-79992 size=8", |
| 919 | }, |
| 920 | { |
| 921 | "PTR_TO_STACK store/load - out of bounds high", |
| 922 | .insns = { |
| 923 | BPF_MOV64_REG(BPF_REG_1, BPF_REG_10), |
| 924 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, -8), |
| 925 | BPF_ST_MEM(BPF_DW, BPF_REG_1, 8, 0xfaceb00c), |
| 926 | BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_1, 8), |
| 927 | BPF_EXIT_INSN(), |
| 928 | }, |
| 929 | .result = REJECT, |
| 930 | .errstr = "invalid stack off=0 size=8", |
| 931 | }, |
| 932 | { |
| 933 | "unpriv: return pointer", |
| 934 | .insns = { |
| 935 | BPF_MOV64_REG(BPF_REG_0, BPF_REG_10), |
| 936 | BPF_EXIT_INSN(), |
| 937 | }, |
| 938 | .result = ACCEPT, |
| 939 | .result_unpriv = REJECT, |
| 940 | .errstr_unpriv = "R0 leaks addr", |
| 941 | }, |
| 942 | { |
| 943 | "unpriv: add const to pointer", |
| 944 | .insns = { |
| 945 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, 8), |
| 946 | BPF_MOV64_IMM(BPF_REG_0, 0), |
| 947 | BPF_EXIT_INSN(), |
| 948 | }, |
| 949 | .result = ACCEPT, |
| 950 | .result_unpriv = REJECT, |
| 951 | .errstr_unpriv = "R1 pointer arithmetic", |
| 952 | }, |
| 953 | { |
| 954 | "unpriv: add pointer to pointer", |
| 955 | .insns = { |
| 956 | BPF_ALU64_REG(BPF_ADD, BPF_REG_1, BPF_REG_10), |
| 957 | BPF_MOV64_IMM(BPF_REG_0, 0), |
| 958 | BPF_EXIT_INSN(), |
| 959 | }, |
| 960 | .result = ACCEPT, |
| 961 | .result_unpriv = REJECT, |
| 962 | .errstr_unpriv = "R1 pointer arithmetic", |
| 963 | }, |
| 964 | { |
| 965 | "unpriv: neg pointer", |
| 966 | .insns = { |
| 967 | BPF_ALU64_IMM(BPF_NEG, BPF_REG_1, 0), |
| 968 | BPF_MOV64_IMM(BPF_REG_0, 0), |
| 969 | BPF_EXIT_INSN(), |
| 970 | }, |
| 971 | .result = ACCEPT, |
| 972 | .result_unpriv = REJECT, |
| 973 | .errstr_unpriv = "R1 pointer arithmetic", |
| 974 | }, |
| 975 | { |
| 976 | "unpriv: cmp pointer with const", |
| 977 | .insns = { |
| 978 | BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, 0, 0), |
| 979 | BPF_MOV64_IMM(BPF_REG_0, 0), |
| 980 | BPF_EXIT_INSN(), |
| 981 | }, |
| 982 | .result = ACCEPT, |
| 983 | .result_unpriv = REJECT, |
| 984 | .errstr_unpriv = "R1 pointer comparison", |
| 985 | }, |
| 986 | { |
| 987 | "unpriv: cmp pointer with pointer", |
| 988 | .insns = { |
| 989 | BPF_JMP_REG(BPF_JEQ, BPF_REG_1, BPF_REG_10, 0), |
| 990 | BPF_MOV64_IMM(BPF_REG_0, 0), |
| 991 | BPF_EXIT_INSN(), |
| 992 | }, |
| 993 | .result = ACCEPT, |
| 994 | .result_unpriv = REJECT, |
| 995 | .errstr_unpriv = "R10 pointer comparison", |
| 996 | }, |
| 997 | { |
| 998 | "unpriv: check that printk is disallowed", |
| 999 | .insns = { |
| 1000 | BPF_ST_MEM(BPF_DW, BPF_REG_10, -8, 0), |
| 1001 | BPF_MOV64_REG(BPF_REG_1, BPF_REG_10), |
| 1002 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, -8), |
| 1003 | BPF_MOV64_IMM(BPF_REG_2, 8), |
| 1004 | BPF_MOV64_REG(BPF_REG_3, BPF_REG_1), |
| 1005 | BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, BPF_FUNC_trace_printk), |
| 1006 | BPF_MOV64_IMM(BPF_REG_0, 0), |
| 1007 | BPF_EXIT_INSN(), |
| 1008 | }, |
| 1009 | .errstr_unpriv = "unknown func 6", |
| 1010 | .result_unpriv = REJECT, |
| 1011 | .result = ACCEPT, |
| 1012 | }, |
| 1013 | { |
| 1014 | "unpriv: pass pointer to helper function", |
| 1015 | .insns = { |
| 1016 | BPF_ST_MEM(BPF_DW, BPF_REG_10, -8, 0), |
| 1017 | BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), |
| 1018 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8), |
| 1019 | BPF_LD_MAP_FD(BPF_REG_1, 0), |
| 1020 | BPF_MOV64_REG(BPF_REG_3, BPF_REG_2), |
| 1021 | BPF_MOV64_REG(BPF_REG_4, BPF_REG_2), |
| 1022 | BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, BPF_FUNC_map_update_elem), |
| 1023 | BPF_MOV64_IMM(BPF_REG_0, 0), |
| 1024 | BPF_EXIT_INSN(), |
| 1025 | }, |
| 1026 | .fixup = {3}, |
| 1027 | .errstr_unpriv = "R4 leaks addr", |
| 1028 | .result_unpriv = REJECT, |
| 1029 | .result = ACCEPT, |
| 1030 | }, |
| 1031 | { |
| 1032 | "unpriv: indirectly pass pointer on stack to helper function", |
| 1033 | .insns = { |
| 1034 | BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_10, -8), |
| 1035 | BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), |
| 1036 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8), |
| 1037 | BPF_LD_MAP_FD(BPF_REG_1, 0), |
| 1038 | BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, BPF_FUNC_map_lookup_elem), |
| 1039 | BPF_MOV64_IMM(BPF_REG_0, 0), |
| 1040 | BPF_EXIT_INSN(), |
| 1041 | }, |
| 1042 | .fixup = {3}, |
| 1043 | .errstr = "invalid indirect read from stack off -8+0 size 8", |
| 1044 | .result = REJECT, |
| 1045 | }, |
| 1046 | { |
| 1047 | "unpriv: mangle pointer on stack 1", |
| 1048 | .insns = { |
| 1049 | BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_10, -8), |
| 1050 | BPF_ST_MEM(BPF_W, BPF_REG_10, -8, 0), |
| 1051 | BPF_MOV64_IMM(BPF_REG_0, 0), |
| 1052 | BPF_EXIT_INSN(), |
| 1053 | }, |
| 1054 | .errstr_unpriv = "attempt to corrupt spilled", |
| 1055 | .result_unpriv = REJECT, |
| 1056 | .result = ACCEPT, |
| 1057 | }, |
| 1058 | { |
| 1059 | "unpriv: mangle pointer on stack 2", |
| 1060 | .insns = { |
| 1061 | BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_10, -8), |
| 1062 | BPF_ST_MEM(BPF_B, BPF_REG_10, -1, 0), |
| 1063 | BPF_MOV64_IMM(BPF_REG_0, 0), |
| 1064 | BPF_EXIT_INSN(), |
| 1065 | }, |
| 1066 | .errstr_unpriv = "attempt to corrupt spilled", |
| 1067 | .result_unpriv = REJECT, |
| 1068 | .result = ACCEPT, |
| 1069 | }, |
| 1070 | { |
| 1071 | "unpriv: read pointer from stack in small chunks", |
| 1072 | .insns = { |
| 1073 | BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_10, -8), |
| 1074 | BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_10, -8), |
| 1075 | BPF_MOV64_IMM(BPF_REG_0, 0), |
| 1076 | BPF_EXIT_INSN(), |
| 1077 | }, |
| 1078 | .errstr = "invalid size", |
| 1079 | .result = REJECT, |
| 1080 | }, |
| 1081 | { |
| 1082 | "unpriv: write pointer into ctx", |
| 1083 | .insns = { |
| 1084 | BPF_STX_MEM(BPF_DW, BPF_REG_1, BPF_REG_1, 0), |
| 1085 | BPF_MOV64_IMM(BPF_REG_0, 0), |
| 1086 | BPF_EXIT_INSN(), |
| 1087 | }, |
| 1088 | .errstr_unpriv = "R1 leaks addr", |
| 1089 | .result_unpriv = REJECT, |
| 1090 | .errstr = "invalid bpf_context access", |
| 1091 | .result = REJECT, |
| 1092 | }, |
| 1093 | { |
| 1094 | "unpriv: write pointer into map elem value", |
| 1095 | .insns = { |
| 1096 | BPF_ST_MEM(BPF_DW, BPF_REG_10, -8, 0), |
| 1097 | BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), |
| 1098 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8), |
| 1099 | BPF_LD_MAP_FD(BPF_REG_1, 0), |
| 1100 | BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, BPF_FUNC_map_lookup_elem), |
| 1101 | BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 1), |
| 1102 | BPF_STX_MEM(BPF_DW, BPF_REG_0, BPF_REG_0, 0), |
| 1103 | BPF_EXIT_INSN(), |
| 1104 | }, |
| 1105 | .fixup = {3}, |
| 1106 | .errstr_unpriv = "R0 leaks addr", |
| 1107 | .result_unpriv = REJECT, |
| 1108 | .result = ACCEPT, |
| 1109 | }, |
| 1110 | { |
| 1111 | "unpriv: partial copy of pointer", |
| 1112 | .insns = { |
| 1113 | BPF_MOV32_REG(BPF_REG_1, BPF_REG_10), |
| 1114 | BPF_MOV64_IMM(BPF_REG_0, 0), |
| 1115 | BPF_EXIT_INSN(), |
| 1116 | }, |
| 1117 | .errstr_unpriv = "R10 partial copy", |
| 1118 | .result_unpriv = REJECT, |
| 1119 | .result = ACCEPT, |
| 1120 | }, |
| 1121 | { |
| 1122 | "unpriv: pass pointer to tail_call", |
| 1123 | .insns = { |
| 1124 | BPF_MOV64_REG(BPF_REG_3, BPF_REG_1), |
| 1125 | BPF_LD_MAP_FD(BPF_REG_2, 0), |
| 1126 | BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, BPF_FUNC_tail_call), |
| 1127 | BPF_MOV64_IMM(BPF_REG_0, 0), |
| 1128 | BPF_EXIT_INSN(), |
| 1129 | }, |
| 1130 | .prog_array_fixup = {1}, |
| 1131 | .errstr_unpriv = "R3 leaks addr into helper", |
| 1132 | .result_unpriv = REJECT, |
| 1133 | .result = ACCEPT, |
| 1134 | }, |
| 1135 | { |
| 1136 | "unpriv: cmp map pointer with zero", |
| 1137 | .insns = { |
| 1138 | BPF_MOV64_IMM(BPF_REG_1, 0), |
| 1139 | BPF_LD_MAP_FD(BPF_REG_1, 0), |
| 1140 | BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, 0, 0), |
| 1141 | BPF_MOV64_IMM(BPF_REG_0, 0), |
| 1142 | BPF_EXIT_INSN(), |
| 1143 | }, |
| 1144 | .fixup = {1}, |
| 1145 | .errstr_unpriv = "R1 pointer comparison", |
| 1146 | .result_unpriv = REJECT, |
| 1147 | .result = ACCEPT, |
| 1148 | }, |
| 1149 | { |
| 1150 | "unpriv: write into frame pointer", |
| 1151 | .insns = { |
| 1152 | BPF_MOV64_REG(BPF_REG_10, BPF_REG_1), |
| 1153 | BPF_MOV64_IMM(BPF_REG_0, 0), |
| 1154 | BPF_EXIT_INSN(), |
| 1155 | }, |
| 1156 | .errstr = "frame pointer is read only", |
| 1157 | .result = REJECT, |
| 1158 | }, |
| 1159 | { |
| 1160 | "unpriv: cmp of frame pointer", |
| 1161 | .insns = { |
| 1162 | BPF_JMP_IMM(BPF_JEQ, BPF_REG_10, 0, 0), |
| 1163 | BPF_MOV64_IMM(BPF_REG_0, 0), |
| 1164 | BPF_EXIT_INSN(), |
| 1165 | }, |
| 1166 | .errstr_unpriv = "R10 pointer comparison", |
| 1167 | .result_unpriv = REJECT, |
| 1168 | .result = ACCEPT, |
| 1169 | }, |
| 1170 | { |
| 1171 | "unpriv: cmp of stack pointer", |
| 1172 | .insns = { |
| 1173 | BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), |
| 1174 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8), |
| 1175 | BPF_JMP_IMM(BPF_JEQ, BPF_REG_2, 0, 0), |
| 1176 | BPF_MOV64_IMM(BPF_REG_0, 0), |
| 1177 | BPF_EXIT_INSN(), |
| 1178 | }, |
| 1179 | .errstr_unpriv = "R2 pointer comparison", |
| 1180 | .result_unpriv = REJECT, |
| 1181 | .result = ACCEPT, |
| 1182 | }, |
| 1183 | { |
| 1184 | "unpriv: obfuscate stack pointer", |
| 1185 | .insns = { |
| 1186 | BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), |
| 1187 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8), |
| 1188 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8), |
| 1189 | BPF_MOV64_IMM(BPF_REG_0, 0), |
| 1190 | BPF_EXIT_INSN(), |
| 1191 | }, |
| 1192 | .errstr_unpriv = "R2 pointer arithmetic", |
| 1193 | .result_unpriv = REJECT, |
| 1194 | .result = ACCEPT, |
| 1195 | }, |
| 1196 | { |
| 1197 | "raw_stack: no skb_load_bytes", |
| 1198 | .insns = { |
| 1199 | BPF_MOV64_IMM(BPF_REG_2, 4), |
| 1200 | BPF_ALU64_REG(BPF_MOV, BPF_REG_6, BPF_REG_10), |
| 1201 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_6, -8), |
| 1202 | BPF_MOV64_REG(BPF_REG_3, BPF_REG_6), |
| 1203 | BPF_MOV64_IMM(BPF_REG_4, 8), |
| 1204 | /* Call to skb_load_bytes() omitted. */ |
| 1205 | BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_6, 0), |
| 1206 | BPF_EXIT_INSN(), |
| 1207 | }, |
| 1208 | .result = REJECT, |
| 1209 | .errstr = "invalid read from stack off -8+0 size 8", |
| 1210 | .prog_type = BPF_PROG_TYPE_SCHED_CLS, |
| 1211 | }, |
| 1212 | { |
| 1213 | "raw_stack: skb_load_bytes, no init", |
| 1214 | .insns = { |
| 1215 | BPF_MOV64_IMM(BPF_REG_2, 4), |
| 1216 | BPF_ALU64_REG(BPF_MOV, BPF_REG_6, BPF_REG_10), |
| 1217 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_6, -8), |
| 1218 | BPF_MOV64_REG(BPF_REG_3, BPF_REG_6), |
| 1219 | BPF_MOV64_IMM(BPF_REG_4, 8), |
| 1220 | BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, BPF_FUNC_skb_load_bytes), |
| 1221 | BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_6, 0), |
| 1222 | BPF_EXIT_INSN(), |
| 1223 | }, |
| 1224 | .result = ACCEPT, |
| 1225 | .prog_type = BPF_PROG_TYPE_SCHED_CLS, |
| 1226 | }, |
| 1227 | { |
| 1228 | "raw_stack: skb_load_bytes, init", |
| 1229 | .insns = { |
| 1230 | BPF_MOV64_IMM(BPF_REG_2, 4), |
| 1231 | BPF_ALU64_REG(BPF_MOV, BPF_REG_6, BPF_REG_10), |
| 1232 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_6, -8), |
| 1233 | BPF_ST_MEM(BPF_DW, BPF_REG_6, 0, 0xcafe), |
| 1234 | BPF_MOV64_REG(BPF_REG_3, BPF_REG_6), |
| 1235 | BPF_MOV64_IMM(BPF_REG_4, 8), |
| 1236 | BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, BPF_FUNC_skb_load_bytes), |
| 1237 | BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_6, 0), |
| 1238 | BPF_EXIT_INSN(), |
| 1239 | }, |
| 1240 | .result = ACCEPT, |
| 1241 | .prog_type = BPF_PROG_TYPE_SCHED_CLS, |
| 1242 | }, |
| 1243 | { |
| 1244 | "raw_stack: skb_load_bytes, spilled regs around bounds", |
| 1245 | .insns = { |
| 1246 | BPF_MOV64_IMM(BPF_REG_2, 4), |
| 1247 | BPF_ALU64_REG(BPF_MOV, BPF_REG_6, BPF_REG_10), |
| 1248 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_6, -16), |
| 1249 | BPF_STX_MEM(BPF_DW, BPF_REG_6, BPF_REG_1, -8), /* spill ctx from R1 */ |
| 1250 | BPF_STX_MEM(BPF_DW, BPF_REG_6, BPF_REG_1, 8), /* spill ctx from R1 */ |
| 1251 | BPF_MOV64_REG(BPF_REG_3, BPF_REG_6), |
| 1252 | BPF_MOV64_IMM(BPF_REG_4, 8), |
| 1253 | BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, BPF_FUNC_skb_load_bytes), |
| 1254 | BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_6, -8), /* fill ctx into R0 */ |
| 1255 | BPF_LDX_MEM(BPF_DW, BPF_REG_2, BPF_REG_6, 8), /* fill ctx into R2 */ |
| 1256 | BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_0, |
| 1257 | offsetof(struct __sk_buff, mark)), |
| 1258 | BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_2, |
| 1259 | offsetof(struct __sk_buff, priority)), |
| 1260 | BPF_ALU64_REG(BPF_ADD, BPF_REG_0, BPF_REG_2), |
| 1261 | BPF_EXIT_INSN(), |
| 1262 | }, |
| 1263 | .result = ACCEPT, |
| 1264 | .prog_type = BPF_PROG_TYPE_SCHED_CLS, |
| 1265 | }, |
| 1266 | { |
| 1267 | "raw_stack: skb_load_bytes, spilled regs corruption", |
| 1268 | .insns = { |
| 1269 | BPF_MOV64_IMM(BPF_REG_2, 4), |
| 1270 | BPF_ALU64_REG(BPF_MOV, BPF_REG_6, BPF_REG_10), |
| 1271 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_6, -8), |
| 1272 | BPF_STX_MEM(BPF_DW, BPF_REG_6, BPF_REG_1, 0), /* spill ctx from R1 */ |
| 1273 | BPF_MOV64_REG(BPF_REG_3, BPF_REG_6), |
| 1274 | BPF_MOV64_IMM(BPF_REG_4, 8), |
| 1275 | BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, BPF_FUNC_skb_load_bytes), |
| 1276 | BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_6, 0), /* fill ctx into R0 */ |
| 1277 | BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_0, |
| 1278 | offsetof(struct __sk_buff, mark)), |
| 1279 | BPF_EXIT_INSN(), |
| 1280 | }, |
| 1281 | .result = REJECT, |
| 1282 | .errstr = "R0 invalid mem access 'inv'", |
| 1283 | .prog_type = BPF_PROG_TYPE_SCHED_CLS, |
| 1284 | }, |
| 1285 | { |
| 1286 | "raw_stack: skb_load_bytes, spilled regs corruption 2", |
| 1287 | .insns = { |
| 1288 | BPF_MOV64_IMM(BPF_REG_2, 4), |
| 1289 | BPF_ALU64_REG(BPF_MOV, BPF_REG_6, BPF_REG_10), |
| 1290 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_6, -16), |
| 1291 | BPF_STX_MEM(BPF_DW, BPF_REG_6, BPF_REG_1, -8), /* spill ctx from R1 */ |
| 1292 | BPF_STX_MEM(BPF_DW, BPF_REG_6, BPF_REG_1, 0), /* spill ctx from R1 */ |
| 1293 | BPF_STX_MEM(BPF_DW, BPF_REG_6, BPF_REG_1, 8), /* spill ctx from R1 */ |
| 1294 | BPF_MOV64_REG(BPF_REG_3, BPF_REG_6), |
| 1295 | BPF_MOV64_IMM(BPF_REG_4, 8), |
| 1296 | BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, BPF_FUNC_skb_load_bytes), |
| 1297 | BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_6, -8), /* fill ctx into R0 */ |
| 1298 | BPF_LDX_MEM(BPF_DW, BPF_REG_2, BPF_REG_6, 8), /* fill ctx into R2 */ |
| 1299 | BPF_LDX_MEM(BPF_DW, BPF_REG_3, BPF_REG_6, 0), /* fill ctx into R3 */ |
| 1300 | BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_0, |
| 1301 | offsetof(struct __sk_buff, mark)), |
| 1302 | BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_2, |
| 1303 | offsetof(struct __sk_buff, priority)), |
| 1304 | BPF_ALU64_REG(BPF_ADD, BPF_REG_0, BPF_REG_2), |
| 1305 | BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_3, |
| 1306 | offsetof(struct __sk_buff, pkt_type)), |
| 1307 | BPF_ALU64_REG(BPF_ADD, BPF_REG_0, BPF_REG_3), |
| 1308 | BPF_EXIT_INSN(), |
| 1309 | }, |
| 1310 | .result = REJECT, |
| 1311 | .errstr = "R3 invalid mem access 'inv'", |
| 1312 | .prog_type = BPF_PROG_TYPE_SCHED_CLS, |
| 1313 | }, |
| 1314 | { |
| 1315 | "raw_stack: skb_load_bytes, spilled regs + data", |
| 1316 | .insns = { |
| 1317 | BPF_MOV64_IMM(BPF_REG_2, 4), |
| 1318 | BPF_ALU64_REG(BPF_MOV, BPF_REG_6, BPF_REG_10), |
| 1319 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_6, -16), |
| 1320 | BPF_STX_MEM(BPF_DW, BPF_REG_6, BPF_REG_1, -8), /* spill ctx from R1 */ |
| 1321 | BPF_STX_MEM(BPF_DW, BPF_REG_6, BPF_REG_1, 0), /* spill ctx from R1 */ |
| 1322 | BPF_STX_MEM(BPF_DW, BPF_REG_6, BPF_REG_1, 8), /* spill ctx from R1 */ |
| 1323 | BPF_MOV64_REG(BPF_REG_3, BPF_REG_6), |
| 1324 | BPF_MOV64_IMM(BPF_REG_4, 8), |
| 1325 | BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, BPF_FUNC_skb_load_bytes), |
| 1326 | BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_6, -8), /* fill ctx into R0 */ |
| 1327 | BPF_LDX_MEM(BPF_DW, BPF_REG_2, BPF_REG_6, 8), /* fill ctx into R2 */ |
| 1328 | BPF_LDX_MEM(BPF_DW, BPF_REG_3, BPF_REG_6, 0), /* fill data into R3 */ |
| 1329 | BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_0, |
| 1330 | offsetof(struct __sk_buff, mark)), |
| 1331 | BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_2, |
| 1332 | offsetof(struct __sk_buff, priority)), |
| 1333 | BPF_ALU64_REG(BPF_ADD, BPF_REG_0, BPF_REG_2), |
| 1334 | BPF_ALU64_REG(BPF_ADD, BPF_REG_0, BPF_REG_3), |
| 1335 | BPF_EXIT_INSN(), |
| 1336 | }, |
| 1337 | .result = ACCEPT, |
| 1338 | .prog_type = BPF_PROG_TYPE_SCHED_CLS, |
| 1339 | }, |
| 1340 | { |
| 1341 | "raw_stack: skb_load_bytes, invalid access 1", |
| 1342 | .insns = { |
| 1343 | BPF_MOV64_IMM(BPF_REG_2, 4), |
| 1344 | BPF_ALU64_REG(BPF_MOV, BPF_REG_6, BPF_REG_10), |
| 1345 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_6, -513), |
| 1346 | BPF_MOV64_REG(BPF_REG_3, BPF_REG_6), |
| 1347 | BPF_MOV64_IMM(BPF_REG_4, 8), |
| 1348 | BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, BPF_FUNC_skb_load_bytes), |
| 1349 | BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_6, 0), |
| 1350 | BPF_EXIT_INSN(), |
| 1351 | }, |
| 1352 | .result = REJECT, |
| 1353 | .errstr = "invalid stack type R3 off=-513 access_size=8", |
| 1354 | .prog_type = BPF_PROG_TYPE_SCHED_CLS, |
| 1355 | }, |
| 1356 | { |
| 1357 | "raw_stack: skb_load_bytes, invalid access 2", |
| 1358 | .insns = { |
| 1359 | BPF_MOV64_IMM(BPF_REG_2, 4), |
| 1360 | BPF_ALU64_REG(BPF_MOV, BPF_REG_6, BPF_REG_10), |
| 1361 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_6, -1), |
| 1362 | BPF_MOV64_REG(BPF_REG_3, BPF_REG_6), |
| 1363 | BPF_MOV64_IMM(BPF_REG_4, 8), |
| 1364 | BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, BPF_FUNC_skb_load_bytes), |
| 1365 | BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_6, 0), |
| 1366 | BPF_EXIT_INSN(), |
| 1367 | }, |
| 1368 | .result = REJECT, |
| 1369 | .errstr = "invalid stack type R3 off=-1 access_size=8", |
| 1370 | .prog_type = BPF_PROG_TYPE_SCHED_CLS, |
| 1371 | }, |
| 1372 | { |
| 1373 | "raw_stack: skb_load_bytes, invalid access 3", |
| 1374 | .insns = { |
| 1375 | BPF_MOV64_IMM(BPF_REG_2, 4), |
| 1376 | BPF_ALU64_REG(BPF_MOV, BPF_REG_6, BPF_REG_10), |
| 1377 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_6, 0xffffffff), |
| 1378 | BPF_MOV64_REG(BPF_REG_3, BPF_REG_6), |
| 1379 | BPF_MOV64_IMM(BPF_REG_4, 0xffffffff), |
| 1380 | BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, BPF_FUNC_skb_load_bytes), |
| 1381 | BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_6, 0), |
| 1382 | BPF_EXIT_INSN(), |
| 1383 | }, |
| 1384 | .result = REJECT, |
| 1385 | .errstr = "invalid stack type R3 off=-1 access_size=-1", |
| 1386 | .prog_type = BPF_PROG_TYPE_SCHED_CLS, |
| 1387 | }, |
| 1388 | { |
| 1389 | "raw_stack: skb_load_bytes, invalid access 4", |
| 1390 | .insns = { |
| 1391 | BPF_MOV64_IMM(BPF_REG_2, 4), |
| 1392 | BPF_ALU64_REG(BPF_MOV, BPF_REG_6, BPF_REG_10), |
| 1393 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_6, -1), |
| 1394 | BPF_MOV64_REG(BPF_REG_3, BPF_REG_6), |
| 1395 | BPF_MOV64_IMM(BPF_REG_4, 0x7fffffff), |
| 1396 | BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, BPF_FUNC_skb_load_bytes), |
| 1397 | BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_6, 0), |
| 1398 | BPF_EXIT_INSN(), |
| 1399 | }, |
| 1400 | .result = REJECT, |
| 1401 | .errstr = "invalid stack type R3 off=-1 access_size=2147483647", |
| 1402 | .prog_type = BPF_PROG_TYPE_SCHED_CLS, |
| 1403 | }, |
| 1404 | { |
| 1405 | "raw_stack: skb_load_bytes, invalid access 5", |
| 1406 | .insns = { |
| 1407 | BPF_MOV64_IMM(BPF_REG_2, 4), |
| 1408 | BPF_ALU64_REG(BPF_MOV, BPF_REG_6, BPF_REG_10), |
| 1409 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_6, -512), |
| 1410 | BPF_MOV64_REG(BPF_REG_3, BPF_REG_6), |
| 1411 | BPF_MOV64_IMM(BPF_REG_4, 0x7fffffff), |
| 1412 | BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, BPF_FUNC_skb_load_bytes), |
| 1413 | BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_6, 0), |
| 1414 | BPF_EXIT_INSN(), |
| 1415 | }, |
| 1416 | .result = REJECT, |
| 1417 | .errstr = "invalid stack type R3 off=-512 access_size=2147483647", |
| 1418 | .prog_type = BPF_PROG_TYPE_SCHED_CLS, |
| 1419 | }, |
| 1420 | { |
| 1421 | "raw_stack: skb_load_bytes, invalid access 6", |
| 1422 | .insns = { |
| 1423 | BPF_MOV64_IMM(BPF_REG_2, 4), |
| 1424 | BPF_ALU64_REG(BPF_MOV, BPF_REG_6, BPF_REG_10), |
| 1425 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_6, -512), |
| 1426 | BPF_MOV64_REG(BPF_REG_3, BPF_REG_6), |
| 1427 | BPF_MOV64_IMM(BPF_REG_4, 0), |
| 1428 | BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, BPF_FUNC_skb_load_bytes), |
| 1429 | BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_6, 0), |
| 1430 | BPF_EXIT_INSN(), |
| 1431 | }, |
| 1432 | .result = REJECT, |
| 1433 | .errstr = "invalid stack type R3 off=-512 access_size=0", |
| 1434 | .prog_type = BPF_PROG_TYPE_SCHED_CLS, |
| 1435 | }, |
| 1436 | { |
| 1437 | "raw_stack: skb_load_bytes, large access", |
| 1438 | .insns = { |
| 1439 | BPF_MOV64_IMM(BPF_REG_2, 4), |
| 1440 | BPF_ALU64_REG(BPF_MOV, BPF_REG_6, BPF_REG_10), |
| 1441 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_6, -512), |
| 1442 | BPF_MOV64_REG(BPF_REG_3, BPF_REG_6), |
| 1443 | BPF_MOV64_IMM(BPF_REG_4, 512), |
| 1444 | BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, BPF_FUNC_skb_load_bytes), |
| 1445 | BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_6, 0), |
| 1446 | BPF_EXIT_INSN(), |
| 1447 | }, |
| 1448 | .result = ACCEPT, |
| 1449 | .prog_type = BPF_PROG_TYPE_SCHED_CLS, |
| 1450 | }, |
| 1451 | { |
| 1452 | "pkt: test1", |
| 1453 | .insns = { |
| 1454 | BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1, |
| 1455 | offsetof(struct __sk_buff, data)), |
| 1456 | BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1, |
| 1457 | offsetof(struct __sk_buff, data_end)), |
| 1458 | BPF_MOV64_REG(BPF_REG_0, BPF_REG_2), |
| 1459 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_0, 8), |
| 1460 | BPF_JMP_REG(BPF_JGT, BPF_REG_0, BPF_REG_3, 1), |
| 1461 | BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_2, 0), |
| 1462 | BPF_MOV64_IMM(BPF_REG_0, 0), |
| 1463 | BPF_EXIT_INSN(), |
| 1464 | }, |
| 1465 | .result = ACCEPT, |
| 1466 | .prog_type = BPF_PROG_TYPE_SCHED_CLS, |
| 1467 | }, |
| 1468 | { |
| 1469 | "pkt: test2", |
| 1470 | .insns = { |
| 1471 | BPF_MOV64_IMM(BPF_REG_0, 1), |
| 1472 | BPF_LDX_MEM(BPF_W, BPF_REG_4, BPF_REG_1, |
| 1473 | offsetof(struct __sk_buff, data_end)), |
| 1474 | BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1, |
| 1475 | offsetof(struct __sk_buff, data)), |
| 1476 | BPF_MOV64_REG(BPF_REG_5, BPF_REG_3), |
| 1477 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_5, 14), |
| 1478 | BPF_JMP_REG(BPF_JGT, BPF_REG_5, BPF_REG_4, 15), |
| 1479 | BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_3, 7), |
| 1480 | BPF_LDX_MEM(BPF_B, BPF_REG_4, BPF_REG_3, 12), |
| 1481 | BPF_ALU64_IMM(BPF_MUL, BPF_REG_4, 14), |
| 1482 | BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1, |
| 1483 | offsetof(struct __sk_buff, data)), |
| 1484 | BPF_ALU64_REG(BPF_ADD, BPF_REG_3, BPF_REG_4), |
| 1485 | BPF_MOV64_REG(BPF_REG_2, BPF_REG_1), |
| 1486 | BPF_ALU64_IMM(BPF_LSH, BPF_REG_2, 48), |
| 1487 | BPF_ALU64_IMM(BPF_RSH, BPF_REG_2, 48), |
| 1488 | BPF_ALU64_REG(BPF_ADD, BPF_REG_3, BPF_REG_2), |
| 1489 | BPF_MOV64_REG(BPF_REG_2, BPF_REG_3), |
| 1490 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, 8), |
| 1491 | BPF_LDX_MEM(BPF_W, BPF_REG_1, BPF_REG_1, |
| 1492 | offsetof(struct __sk_buff, data_end)), |
| 1493 | BPF_JMP_REG(BPF_JGT, BPF_REG_2, BPF_REG_1, 1), |
| 1494 | BPF_LDX_MEM(BPF_B, BPF_REG_1, BPF_REG_3, 4), |
| 1495 | BPF_MOV64_IMM(BPF_REG_0, 0), |
| 1496 | BPF_EXIT_INSN(), |
| 1497 | }, |
| 1498 | .result = ACCEPT, |
| 1499 | .prog_type = BPF_PROG_TYPE_SCHED_CLS, |
| 1500 | }, |
| 1501 | { |
| 1502 | "pkt: test3", |
| 1503 | .insns = { |
| 1504 | BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1, |
| 1505 | offsetof(struct __sk_buff, data)), |
| 1506 | BPF_MOV64_IMM(BPF_REG_0, 0), |
| 1507 | BPF_EXIT_INSN(), |
| 1508 | }, |
| 1509 | .errstr = "invalid bpf_context access off=76", |
| 1510 | .result = REJECT, |
| 1511 | .prog_type = BPF_PROG_TYPE_SOCKET_FILTER, |
| 1512 | }, |
| 1513 | { |
| 1514 | "pkt: test4", |
| 1515 | .insns = { |
| 1516 | BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1, |
| 1517 | offsetof(struct __sk_buff, data)), |
| 1518 | BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1, |
| 1519 | offsetof(struct __sk_buff, data_end)), |
| 1520 | BPF_MOV64_REG(BPF_REG_0, BPF_REG_2), |
| 1521 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_0, 8), |
| 1522 | BPF_JMP_REG(BPF_JGT, BPF_REG_0, BPF_REG_3, 1), |
| 1523 | BPF_STX_MEM(BPF_B, BPF_REG_2, BPF_REG_2, 0), |
| 1524 | BPF_MOV64_IMM(BPF_REG_0, 0), |
| 1525 | BPF_EXIT_INSN(), |
| 1526 | }, |
| 1527 | .errstr = "cannot write", |
| 1528 | .result = REJECT, |
| 1529 | .prog_type = BPF_PROG_TYPE_SCHED_CLS, |
| 1530 | }, |
| 1531 | }; |
| 1532 | |
| 1533 | static int probe_filter_length(struct bpf_insn *fp) |
| 1534 | { |
| 1535 | int len = 0; |
| 1536 | |
| 1537 | for (len = MAX_INSNS - 1; len > 0; --len) |
| 1538 | if (fp[len].code != 0 || fp[len].imm != 0) |
| 1539 | break; |
| 1540 | |
| 1541 | return len + 1; |
| 1542 | } |
| 1543 | |
| 1544 | static int create_map(void) |
| 1545 | { |
| 1546 | int map_fd; |
| 1547 | |
| 1548 | map_fd = bpf_create_map(BPF_MAP_TYPE_HASH, |
| 1549 | sizeof(long long), sizeof(long long), 1024, 0); |
| 1550 | if (map_fd < 0) |
| 1551 | printf("failed to create map '%s'\n", strerror(errno)); |
| 1552 | |
| 1553 | return map_fd; |
| 1554 | } |
| 1555 | |
| 1556 | static int create_prog_array(void) |
| 1557 | { |
| 1558 | int map_fd; |
| 1559 | |
| 1560 | map_fd = bpf_create_map(BPF_MAP_TYPE_PROG_ARRAY, |
| 1561 | sizeof(int), sizeof(int), 4, 0); |
| 1562 | if (map_fd < 0) |
| 1563 | printf("failed to create prog_array '%s'\n", strerror(errno)); |
| 1564 | |
| 1565 | return map_fd; |
| 1566 | } |
| 1567 | |
| 1568 | static int test(void) |
| 1569 | { |
| 1570 | int prog_fd, i, pass_cnt = 0, err_cnt = 0; |
| 1571 | bool unpriv = geteuid() != 0; |
| 1572 | |
| 1573 | for (i = 0; i < ARRAY_SIZE(tests); i++) { |
| 1574 | struct bpf_insn *prog = tests[i].insns; |
| 1575 | int prog_type = tests[i].prog_type; |
| 1576 | int prog_len = probe_filter_length(prog); |
| 1577 | int *fixup = tests[i].fixup; |
| 1578 | int *prog_array_fixup = tests[i].prog_array_fixup; |
| 1579 | int expected_result; |
| 1580 | const char *expected_errstr; |
| 1581 | int map_fd = -1, prog_array_fd = -1; |
| 1582 | |
| 1583 | if (*fixup) { |
| 1584 | map_fd = create_map(); |
| 1585 | |
| 1586 | do { |
| 1587 | prog[*fixup].imm = map_fd; |
| 1588 | fixup++; |
| 1589 | } while (*fixup); |
| 1590 | } |
| 1591 | if (*prog_array_fixup) { |
| 1592 | prog_array_fd = create_prog_array(); |
| 1593 | |
| 1594 | do { |
| 1595 | prog[*prog_array_fixup].imm = prog_array_fd; |
| 1596 | prog_array_fixup++; |
| 1597 | } while (*prog_array_fixup); |
| 1598 | } |
| 1599 | printf("#%d %s ", i, tests[i].descr); |
| 1600 | |
| 1601 | prog_fd = bpf_prog_load(prog_type ?: BPF_PROG_TYPE_SOCKET_FILTER, |
| 1602 | prog, prog_len * sizeof(struct bpf_insn), |
| 1603 | "GPL", 0); |
| 1604 | |
| 1605 | if (unpriv && tests[i].result_unpriv != UNDEF) |
| 1606 | expected_result = tests[i].result_unpriv; |
| 1607 | else |
| 1608 | expected_result = tests[i].result; |
| 1609 | |
| 1610 | if (unpriv && tests[i].errstr_unpriv) |
| 1611 | expected_errstr = tests[i].errstr_unpriv; |
| 1612 | else |
| 1613 | expected_errstr = tests[i].errstr; |
| 1614 | |
| 1615 | if (expected_result == ACCEPT) { |
| 1616 | if (prog_fd < 0) { |
| 1617 | printf("FAIL\nfailed to load prog '%s'\n", |
| 1618 | strerror(errno)); |
| 1619 | printf("%s", bpf_log_buf); |
| 1620 | err_cnt++; |
| 1621 | goto fail; |
| 1622 | } |
| 1623 | } else { |
| 1624 | if (prog_fd >= 0) { |
| 1625 | printf("FAIL\nunexpected success to load\n"); |
| 1626 | printf("%s", bpf_log_buf); |
| 1627 | err_cnt++; |
| 1628 | goto fail; |
| 1629 | } |
| 1630 | if (strstr(bpf_log_buf, expected_errstr) == 0) { |
| 1631 | printf("FAIL\nunexpected error message: %s", |
| 1632 | bpf_log_buf); |
| 1633 | err_cnt++; |
| 1634 | goto fail; |
| 1635 | } |
| 1636 | } |
| 1637 | |
| 1638 | pass_cnt++; |
| 1639 | printf("OK\n"); |
| 1640 | fail: |
| 1641 | if (map_fd >= 0) |
| 1642 | close(map_fd); |
| 1643 | if (prog_array_fd >= 0) |
| 1644 | close(prog_array_fd); |
| 1645 | close(prog_fd); |
| 1646 | |
| 1647 | } |
| 1648 | printf("Summary: %d PASSED, %d FAILED\n", pass_cnt, err_cnt); |
| 1649 | |
| 1650 | return 0; |
| 1651 | } |
| 1652 | |
| 1653 | int main(void) |
| 1654 | { |
| 1655 | struct rlimit r = {1 << 20, 1 << 20}; |
| 1656 | |
| 1657 | setrlimit(RLIMIT_MEMLOCK, &r); |
| 1658 | return test(); |
| 1659 | } |