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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 | ||
11 | #include <stdio.h> | |
12 | #include <unistd.h> | |
13 | #include <errno.h> | |
14 | #include <string.h> | |
15 | #include <stddef.h> | |
16 | #include <stdbool.h> | |
17 | #include <sched.h> | |
18 | ||
19 | #include <sys/resource.h> | |
20 | ||
21 | #include <linux/unistd.h> | |
22 | #include <linux/filter.h> | |
23 | #include <linux/bpf_perf_event.h> | |
24 | #include <linux/bpf.h> | |
25 | ||
26 | #include "../../../include/linux/filter.h" | |
27 | ||
28 | #include "bpf_sys.h" | |
29 | ||
30 | #ifndef ARRAY_SIZE | |
31 | # define ARRAY_SIZE(x) (sizeof(x) / sizeof((x)[0])) | |
32 | #endif | |
33 | ||
34 | #define MAX_INSNS 512 | |
35 | #define MAX_FIXUPS 8 | |
36 | ||
37 | struct bpf_test { | |
38 | const char *descr; | |
39 | struct bpf_insn insns[MAX_INSNS]; | |
40 | int fixup_map1[MAX_FIXUPS]; | |
41 | int fixup_map2[MAX_FIXUPS]; | |
42 | int fixup_prog[MAX_FIXUPS]; | |
43 | const char *errstr; | |
44 | const char *errstr_unpriv; | |
45 | enum { | |
46 | UNDEF, | |
47 | ACCEPT, | |
48 | REJECT | |
49 | } result, result_unpriv; | |
50 | enum bpf_prog_type prog_type; | |
51 | }; | |
52 | ||
53 | /* Note we want this to be 64 bit aligned so that the end of our array is | |
54 | * actually the end of the structure. | |
55 | */ | |
56 | #define MAX_ENTRIES 11 | |
57 | ||
58 | struct test_val { | |
59 | unsigned int index; | |
60 | int foo[MAX_ENTRIES]; | |
61 | }; | |
62 | ||
63 | static struct bpf_test tests[] = { | |
64 | { | |
65 | "add+sub+mul", | |
66 | .insns = { | |
67 | BPF_MOV64_IMM(BPF_REG_1, 1), | |
68 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, 2), | |
69 | BPF_MOV64_IMM(BPF_REG_2, 3), | |
70 | BPF_ALU64_REG(BPF_SUB, BPF_REG_1, BPF_REG_2), | |
71 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, -1), | |
72 | BPF_ALU64_IMM(BPF_MUL, BPF_REG_1, 3), | |
73 | BPF_MOV64_REG(BPF_REG_0, BPF_REG_1), | |
74 | BPF_EXIT_INSN(), | |
75 | }, | |
76 | .result = ACCEPT, | |
77 | }, | |
78 | { | |
79 | "unreachable", | |
80 | .insns = { | |
81 | BPF_EXIT_INSN(), | |
82 | BPF_EXIT_INSN(), | |
83 | }, | |
84 | .errstr = "unreachable", | |
85 | .result = REJECT, | |
86 | }, | |
87 | { | |
88 | "unreachable2", | |
89 | .insns = { | |
90 | BPF_JMP_IMM(BPF_JA, 0, 0, 1), | |
91 | BPF_JMP_IMM(BPF_JA, 0, 0, 0), | |
92 | BPF_EXIT_INSN(), | |
93 | }, | |
94 | .errstr = "unreachable", | |
95 | .result = REJECT, | |
96 | }, | |
97 | { | |
98 | "out of range jump", | |
99 | .insns = { | |
100 | BPF_JMP_IMM(BPF_JA, 0, 0, 1), | |
101 | BPF_EXIT_INSN(), | |
102 | }, | |
103 | .errstr = "jump out of range", | |
104 | .result = REJECT, | |
105 | }, | |
106 | { | |
107 | "out of range jump2", | |
108 | .insns = { | |
109 | BPF_JMP_IMM(BPF_JA, 0, 0, -2), | |
110 | BPF_EXIT_INSN(), | |
111 | }, | |
112 | .errstr = "jump out of range", | |
113 | .result = REJECT, | |
114 | }, | |
115 | { | |
116 | "test1 ld_imm64", | |
117 | .insns = { | |
118 | BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, 0, 1), | |
119 | BPF_LD_IMM64(BPF_REG_0, 0), | |
120 | BPF_LD_IMM64(BPF_REG_0, 0), | |
121 | BPF_LD_IMM64(BPF_REG_0, 1), | |
122 | BPF_LD_IMM64(BPF_REG_0, 1), | |
123 | BPF_MOV64_IMM(BPF_REG_0, 2), | |
124 | BPF_EXIT_INSN(), | |
125 | }, | |
126 | .errstr = "invalid BPF_LD_IMM insn", | |
127 | .errstr_unpriv = "R1 pointer comparison", | |
128 | .result = REJECT, | |
129 | }, | |
130 | { | |
131 | "test2 ld_imm64", | |
132 | .insns = { | |
133 | BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, 0, 1), | |
134 | BPF_LD_IMM64(BPF_REG_0, 0), | |
135 | BPF_LD_IMM64(BPF_REG_0, 0), | |
136 | BPF_LD_IMM64(BPF_REG_0, 1), | |
137 | BPF_LD_IMM64(BPF_REG_0, 1), | |
138 | BPF_EXIT_INSN(), | |
139 | }, | |
140 | .errstr = "invalid BPF_LD_IMM insn", | |
141 | .errstr_unpriv = "R1 pointer comparison", | |
142 | .result = REJECT, | |
143 | }, | |
144 | { | |
145 | "test3 ld_imm64", | |
146 | .insns = { | |
147 | BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, 0, 1), | |
148 | BPF_RAW_INSN(BPF_LD | BPF_IMM | BPF_DW, 0, 0, 0, 0), | |
149 | BPF_LD_IMM64(BPF_REG_0, 0), | |
150 | BPF_LD_IMM64(BPF_REG_0, 0), | |
151 | BPF_LD_IMM64(BPF_REG_0, 1), | |
152 | BPF_LD_IMM64(BPF_REG_0, 1), | |
153 | BPF_EXIT_INSN(), | |
154 | }, | |
155 | .errstr = "invalid bpf_ld_imm64 insn", | |
156 | .result = REJECT, | |
157 | }, | |
158 | { | |
159 | "test4 ld_imm64", | |
160 | .insns = { | |
161 | BPF_RAW_INSN(BPF_LD | BPF_IMM | BPF_DW, 0, 0, 0, 0), | |
162 | BPF_EXIT_INSN(), | |
163 | }, | |
164 | .errstr = "invalid bpf_ld_imm64 insn", | |
165 | .result = REJECT, | |
166 | }, | |
167 | { | |
168 | "test5 ld_imm64", | |
169 | .insns = { | |
170 | BPF_RAW_INSN(BPF_LD | BPF_IMM | BPF_DW, 0, 0, 0, 0), | |
171 | }, | |
172 | .errstr = "invalid bpf_ld_imm64 insn", | |
173 | .result = REJECT, | |
174 | }, | |
175 | { | |
176 | "no bpf_exit", | |
177 | .insns = { | |
178 | BPF_ALU64_REG(BPF_MOV, BPF_REG_0, BPF_REG_2), | |
179 | }, | |
180 | .errstr = "jump out of range", | |
181 | .result = REJECT, | |
182 | }, | |
183 | { | |
184 | "loop (back-edge)", | |
185 | .insns = { | |
186 | BPF_JMP_IMM(BPF_JA, 0, 0, -1), | |
187 | BPF_EXIT_INSN(), | |
188 | }, | |
189 | .errstr = "back-edge", | |
190 | .result = REJECT, | |
191 | }, | |
192 | { | |
193 | "loop2 (back-edge)", | |
194 | .insns = { | |
195 | BPF_MOV64_REG(BPF_REG_1, BPF_REG_0), | |
196 | BPF_MOV64_REG(BPF_REG_2, BPF_REG_0), | |
197 | BPF_MOV64_REG(BPF_REG_3, BPF_REG_0), | |
198 | BPF_JMP_IMM(BPF_JA, 0, 0, -4), | |
199 | BPF_EXIT_INSN(), | |
200 | }, | |
201 | .errstr = "back-edge", | |
202 | .result = REJECT, | |
203 | }, | |
204 | { | |
205 | "conditional loop", | |
206 | .insns = { | |
207 | BPF_MOV64_REG(BPF_REG_1, BPF_REG_0), | |
208 | BPF_MOV64_REG(BPF_REG_2, BPF_REG_0), | |
209 | BPF_MOV64_REG(BPF_REG_3, BPF_REG_0), | |
210 | BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, 0, -3), | |
211 | BPF_EXIT_INSN(), | |
212 | }, | |
213 | .errstr = "back-edge", | |
214 | .result = REJECT, | |
215 | }, | |
216 | { | |
217 | "read uninitialized register", | |
218 | .insns = { | |
219 | BPF_MOV64_REG(BPF_REG_0, BPF_REG_2), | |
220 | BPF_EXIT_INSN(), | |
221 | }, | |
222 | .errstr = "R2 !read_ok", | |
223 | .result = REJECT, | |
224 | }, | |
225 | { | |
226 | "read invalid register", | |
227 | .insns = { | |
228 | BPF_MOV64_REG(BPF_REG_0, -1), | |
229 | BPF_EXIT_INSN(), | |
230 | }, | |
231 | .errstr = "R15 is invalid", | |
232 | .result = REJECT, | |
233 | }, | |
234 | { | |
235 | "program doesn't init R0 before exit", | |
236 | .insns = { | |
237 | BPF_ALU64_REG(BPF_MOV, BPF_REG_2, BPF_REG_1), | |
238 | BPF_EXIT_INSN(), | |
239 | }, | |
240 | .errstr = "R0 !read_ok", | |
241 | .result = REJECT, | |
242 | }, | |
243 | { | |
244 | "program doesn't init R0 before exit in all branches", | |
245 | .insns = { | |
246 | BPF_JMP_IMM(BPF_JGE, BPF_REG_1, 0, 2), | |
247 | BPF_MOV64_IMM(BPF_REG_0, 1), | |
248 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_0, 2), | |
249 | BPF_EXIT_INSN(), | |
250 | }, | |
251 | .errstr = "R0 !read_ok", | |
252 | .errstr_unpriv = "R1 pointer comparison", | |
253 | .result = REJECT, | |
254 | }, | |
255 | { | |
256 | "stack out of bounds", | |
257 | .insns = { | |
258 | BPF_ST_MEM(BPF_DW, BPF_REG_10, 8, 0), | |
259 | BPF_EXIT_INSN(), | |
260 | }, | |
261 | .errstr = "invalid stack", | |
262 | .result = REJECT, | |
263 | }, | |
264 | { | |
265 | "invalid call insn1", | |
266 | .insns = { | |
267 | BPF_RAW_INSN(BPF_JMP | BPF_CALL | BPF_X, 0, 0, 0, 0), | |
268 | BPF_EXIT_INSN(), | |
269 | }, | |
270 | .errstr = "BPF_CALL uses reserved", | |
271 | .result = REJECT, | |
272 | }, | |
273 | { | |
274 | "invalid call insn2", | |
275 | .insns = { | |
276 | BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 1, 0), | |
277 | BPF_EXIT_INSN(), | |
278 | }, | |
279 | .errstr = "BPF_CALL uses reserved", | |
280 | .result = REJECT, | |
281 | }, | |
282 | { | |
283 | "invalid function call", | |
284 | .insns = { | |
285 | BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, 1234567), | |
286 | BPF_EXIT_INSN(), | |
287 | }, | |
288 | .errstr = "invalid func unknown#1234567", | |
289 | .result = REJECT, | |
290 | }, | |
291 | { | |
292 | "uninitialized stack1", | |
293 | .insns = { | |
294 | BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), | |
295 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8), | |
296 | BPF_LD_MAP_FD(BPF_REG_1, 0), | |
297 | BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, | |
298 | BPF_FUNC_map_lookup_elem), | |
299 | BPF_EXIT_INSN(), | |
300 | }, | |
301 | .fixup_map1 = { 2 }, | |
302 | .errstr = "invalid indirect read from stack", | |
303 | .result = REJECT, | |
304 | }, | |
305 | { | |
306 | "uninitialized stack2", | |
307 | .insns = { | |
308 | BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), | |
309 | BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_2, -8), | |
310 | BPF_EXIT_INSN(), | |
311 | }, | |
312 | .errstr = "invalid read from stack", | |
313 | .result = REJECT, | |
314 | }, | |
315 | { | |
316 | "invalid argument register", | |
317 | .insns = { | |
318 | BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, | |
319 | BPF_FUNC_get_cgroup_classid), | |
320 | BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, | |
321 | BPF_FUNC_get_cgroup_classid), | |
322 | BPF_EXIT_INSN(), | |
323 | }, | |
324 | .errstr = "R1 !read_ok", | |
325 | .result = REJECT, | |
326 | .prog_type = BPF_PROG_TYPE_SCHED_CLS, | |
327 | }, | |
328 | { | |
329 | "non-invalid argument register", | |
330 | .insns = { | |
331 | BPF_ALU64_REG(BPF_MOV, BPF_REG_6, BPF_REG_1), | |
332 | BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, | |
333 | BPF_FUNC_get_cgroup_classid), | |
334 | BPF_ALU64_REG(BPF_MOV, BPF_REG_1, BPF_REG_6), | |
335 | BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, | |
336 | BPF_FUNC_get_cgroup_classid), | |
337 | BPF_EXIT_INSN(), | |
338 | }, | |
339 | .result = ACCEPT, | |
340 | .prog_type = BPF_PROG_TYPE_SCHED_CLS, | |
341 | }, | |
342 | { | |
343 | "check valid spill/fill", | |
344 | .insns = { | |
345 | /* spill R1(ctx) into stack */ | |
346 | BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_1, -8), | |
347 | /* fill it back into R2 */ | |
348 | BPF_LDX_MEM(BPF_DW, BPF_REG_2, BPF_REG_10, -8), | |
349 | /* should be able to access R0 = *(R2 + 8) */ | |
350 | /* BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_2, 8), */ | |
351 | BPF_MOV64_REG(BPF_REG_0, BPF_REG_2), | |
352 | BPF_EXIT_INSN(), | |
353 | }, | |
354 | .errstr_unpriv = "R0 leaks addr", | |
355 | .result = ACCEPT, | |
356 | .result_unpriv = REJECT, | |
357 | }, | |
358 | { | |
359 | "check valid spill/fill, skb mark", | |
360 | .insns = { | |
361 | BPF_ALU64_REG(BPF_MOV, BPF_REG_6, BPF_REG_1), | |
362 | BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_6, -8), | |
363 | BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_10, -8), | |
364 | BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_0, | |
365 | offsetof(struct __sk_buff, mark)), | |
366 | BPF_EXIT_INSN(), | |
367 | }, | |
368 | .result = ACCEPT, | |
369 | .result_unpriv = ACCEPT, | |
370 | }, | |
371 | { | |
372 | "check corrupted spill/fill", | |
373 | .insns = { | |
374 | /* spill R1(ctx) into stack */ | |
375 | BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_1, -8), | |
376 | /* mess up with R1 pointer on stack */ | |
377 | BPF_ST_MEM(BPF_B, BPF_REG_10, -7, 0x23), | |
378 | /* fill back into R0 should fail */ | |
379 | BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_10, -8), | |
380 | BPF_EXIT_INSN(), | |
381 | }, | |
382 | .errstr_unpriv = "attempt to corrupt spilled", | |
383 | .errstr = "corrupted spill", | |
384 | .result = REJECT, | |
385 | }, | |
386 | { | |
387 | "invalid src register in STX", | |
388 | .insns = { | |
389 | BPF_STX_MEM(BPF_B, BPF_REG_10, -1, -1), | |
390 | BPF_EXIT_INSN(), | |
391 | }, | |
392 | .errstr = "R15 is invalid", | |
393 | .result = REJECT, | |
394 | }, | |
395 | { | |
396 | "invalid dst register in STX", | |
397 | .insns = { | |
398 | BPF_STX_MEM(BPF_B, 14, BPF_REG_10, -1), | |
399 | BPF_EXIT_INSN(), | |
400 | }, | |
401 | .errstr = "R14 is invalid", | |
402 | .result = REJECT, | |
403 | }, | |
404 | { | |
405 | "invalid dst register in ST", | |
406 | .insns = { | |
407 | BPF_ST_MEM(BPF_B, 14, -1, -1), | |
408 | BPF_EXIT_INSN(), | |
409 | }, | |
410 | .errstr = "R14 is invalid", | |
411 | .result = REJECT, | |
412 | }, | |
413 | { | |
414 | "invalid src register in LDX", | |
415 | .insns = { | |
416 | BPF_LDX_MEM(BPF_B, BPF_REG_0, 12, 0), | |
417 | BPF_EXIT_INSN(), | |
418 | }, | |
419 | .errstr = "R12 is invalid", | |
420 | .result = REJECT, | |
421 | }, | |
422 | { | |
423 | "invalid dst register in LDX", | |
424 | .insns = { | |
425 | BPF_LDX_MEM(BPF_B, 11, BPF_REG_1, 0), | |
426 | BPF_EXIT_INSN(), | |
427 | }, | |
428 | .errstr = "R11 is invalid", | |
429 | .result = REJECT, | |
430 | }, | |
431 | { | |
432 | "junk insn", | |
433 | .insns = { | |
434 | BPF_RAW_INSN(0, 0, 0, 0, 0), | |
435 | BPF_EXIT_INSN(), | |
436 | }, | |
437 | .errstr = "invalid BPF_LD_IMM", | |
438 | .result = REJECT, | |
439 | }, | |
440 | { | |
441 | "junk insn2", | |
442 | .insns = { | |
443 | BPF_RAW_INSN(1, 0, 0, 0, 0), | |
444 | BPF_EXIT_INSN(), | |
445 | }, | |
446 | .errstr = "BPF_LDX uses reserved fields", | |
447 | .result = REJECT, | |
448 | }, | |
449 | { | |
450 | "junk insn3", | |
451 | .insns = { | |
452 | BPF_RAW_INSN(-1, 0, 0, 0, 0), | |
453 | BPF_EXIT_INSN(), | |
454 | }, | |
455 | .errstr = "invalid BPF_ALU opcode f0", | |
456 | .result = REJECT, | |
457 | }, | |
458 | { | |
459 | "junk insn4", | |
460 | .insns = { | |
461 | BPF_RAW_INSN(-1, -1, -1, -1, -1), | |
462 | BPF_EXIT_INSN(), | |
463 | }, | |
464 | .errstr = "invalid BPF_ALU opcode f0", | |
465 | .result = REJECT, | |
466 | }, | |
467 | { | |
468 | "junk insn5", | |
469 | .insns = { | |
470 | BPF_RAW_INSN(0x7f, -1, -1, -1, -1), | |
471 | BPF_EXIT_INSN(), | |
472 | }, | |
473 | .errstr = "BPF_ALU uses reserved fields", | |
474 | .result = REJECT, | |
475 | }, | |
476 | { | |
477 | "misaligned read from stack", | |
478 | .insns = { | |
479 | BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), | |
480 | BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_2, -4), | |
481 | BPF_EXIT_INSN(), | |
482 | }, | |
483 | .errstr = "misaligned access", | |
484 | .result = REJECT, | |
485 | }, | |
486 | { | |
487 | "invalid map_fd for function call", | |
488 | .insns = { | |
489 | BPF_ST_MEM(BPF_DW, BPF_REG_10, -8, 0), | |
490 | BPF_ALU64_REG(BPF_MOV, 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, | |
494 | BPF_FUNC_map_delete_elem), | |
495 | BPF_EXIT_INSN(), | |
496 | }, | |
497 | .errstr = "fd 0 is not pointing to valid bpf_map", | |
498 | .result = REJECT, | |
499 | }, | |
500 | { | |
501 | "don't check return value before access", | |
502 | .insns = { | |
503 | BPF_ST_MEM(BPF_DW, BPF_REG_10, -8, 0), | |
504 | BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), | |
505 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8), | |
506 | BPF_LD_MAP_FD(BPF_REG_1, 0), | |
507 | BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, | |
508 | BPF_FUNC_map_lookup_elem), | |
509 | BPF_ST_MEM(BPF_DW, BPF_REG_0, 0, 0), | |
510 | BPF_EXIT_INSN(), | |
511 | }, | |
512 | .fixup_map1 = { 3 }, | |
513 | .errstr = "R0 invalid mem access 'map_value_or_null'", | |
514 | .result = REJECT, | |
515 | }, | |
516 | { | |
517 | "access memory with incorrect alignment", | |
518 | .insns = { | |
519 | BPF_ST_MEM(BPF_DW, BPF_REG_10, -8, 0), | |
520 | BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), | |
521 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8), | |
522 | BPF_LD_MAP_FD(BPF_REG_1, 0), | |
523 | BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, | |
524 | BPF_FUNC_map_lookup_elem), | |
525 | BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 1), | |
526 | BPF_ST_MEM(BPF_DW, BPF_REG_0, 4, 0), | |
527 | BPF_EXIT_INSN(), | |
528 | }, | |
529 | .fixup_map1 = { 3 }, | |
530 | .errstr = "misaligned access", | |
531 | .result = REJECT, | |
532 | }, | |
533 | { | |
534 | "sometimes access memory with incorrect alignment", | |
535 | .insns = { | |
536 | BPF_ST_MEM(BPF_DW, BPF_REG_10, -8, 0), | |
537 | BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), | |
538 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8), | |
539 | BPF_LD_MAP_FD(BPF_REG_1, 0), | |
540 | BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, | |
541 | BPF_FUNC_map_lookup_elem), | |
542 | BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 2), | |
543 | BPF_ST_MEM(BPF_DW, BPF_REG_0, 0, 0), | |
544 | BPF_EXIT_INSN(), | |
545 | BPF_ST_MEM(BPF_DW, BPF_REG_0, 0, 1), | |
546 | BPF_EXIT_INSN(), | |
547 | }, | |
548 | .fixup_map1 = { 3 }, | |
549 | .errstr = "R0 invalid mem access", | |
550 | .errstr_unpriv = "R0 leaks addr", | |
551 | .result = REJECT, | |
552 | }, | |
553 | { | |
554 | "jump test 1", | |
555 | .insns = { | |
556 | BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), | |
557 | BPF_STX_MEM(BPF_DW, BPF_REG_2, BPF_REG_1, -8), | |
558 | BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, 0, 1), | |
559 | BPF_ST_MEM(BPF_DW, BPF_REG_2, -8, 0), | |
560 | BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, 1, 1), | |
561 | BPF_ST_MEM(BPF_DW, BPF_REG_2, -16, 1), | |
562 | BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, 2, 1), | |
563 | BPF_ST_MEM(BPF_DW, BPF_REG_2, -8, 2), | |
564 | BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, 3, 1), | |
565 | BPF_ST_MEM(BPF_DW, BPF_REG_2, -16, 3), | |
566 | BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, 4, 1), | |
567 | BPF_ST_MEM(BPF_DW, BPF_REG_2, -8, 4), | |
568 | BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, 5, 1), | |
569 | BPF_ST_MEM(BPF_DW, BPF_REG_2, -32, 5), | |
570 | BPF_MOV64_IMM(BPF_REG_0, 0), | |
571 | BPF_EXIT_INSN(), | |
572 | }, | |
573 | .errstr_unpriv = "R1 pointer comparison", | |
574 | .result_unpriv = REJECT, | |
575 | .result = ACCEPT, | |
576 | }, | |
577 | { | |
578 | "jump test 2", | |
579 | .insns = { | |
580 | BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), | |
581 | BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, 0, 2), | |
582 | BPF_ST_MEM(BPF_DW, BPF_REG_2, -8, 0), | |
583 | BPF_JMP_IMM(BPF_JA, 0, 0, 14), | |
584 | BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, 1, 2), | |
585 | BPF_ST_MEM(BPF_DW, BPF_REG_2, -16, 0), | |
586 | BPF_JMP_IMM(BPF_JA, 0, 0, 11), | |
587 | BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, 2, 2), | |
588 | BPF_ST_MEM(BPF_DW, BPF_REG_2, -32, 0), | |
589 | BPF_JMP_IMM(BPF_JA, 0, 0, 8), | |
590 | BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, 3, 2), | |
591 | BPF_ST_MEM(BPF_DW, BPF_REG_2, -40, 0), | |
592 | BPF_JMP_IMM(BPF_JA, 0, 0, 5), | |
593 | BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, 4, 2), | |
594 | BPF_ST_MEM(BPF_DW, BPF_REG_2, -48, 0), | |
595 | BPF_JMP_IMM(BPF_JA, 0, 0, 2), | |
596 | BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, 5, 1), | |
597 | BPF_ST_MEM(BPF_DW, BPF_REG_2, -56, 0), | |
598 | BPF_MOV64_IMM(BPF_REG_0, 0), | |
599 | BPF_EXIT_INSN(), | |
600 | }, | |
601 | .errstr_unpriv = "R1 pointer comparison", | |
602 | .result_unpriv = REJECT, | |
603 | .result = ACCEPT, | |
604 | }, | |
605 | { | |
606 | "jump test 3", | |
607 | .insns = { | |
608 | BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), | |
609 | BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, 0, 3), | |
610 | BPF_ST_MEM(BPF_DW, BPF_REG_2, -8, 0), | |
611 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8), | |
612 | BPF_JMP_IMM(BPF_JA, 0, 0, 19), | |
613 | BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, 1, 3), | |
614 | BPF_ST_MEM(BPF_DW, BPF_REG_2, -16, 0), | |
615 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -16), | |
616 | BPF_JMP_IMM(BPF_JA, 0, 0, 15), | |
617 | BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, 2, 3), | |
618 | BPF_ST_MEM(BPF_DW, BPF_REG_2, -32, 0), | |
619 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -32), | |
620 | BPF_JMP_IMM(BPF_JA, 0, 0, 11), | |
621 | BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, 3, 3), | |
622 | BPF_ST_MEM(BPF_DW, BPF_REG_2, -40, 0), | |
623 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -40), | |
624 | BPF_JMP_IMM(BPF_JA, 0, 0, 7), | |
625 | BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, 4, 3), | |
626 | BPF_ST_MEM(BPF_DW, BPF_REG_2, -48, 0), | |
627 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -48), | |
628 | BPF_JMP_IMM(BPF_JA, 0, 0, 3), | |
629 | BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, 5, 0), | |
630 | BPF_ST_MEM(BPF_DW, BPF_REG_2, -56, 0), | |
631 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -56), | |
632 | BPF_LD_MAP_FD(BPF_REG_1, 0), | |
633 | BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, | |
634 | BPF_FUNC_map_delete_elem), | |
635 | BPF_EXIT_INSN(), | |
636 | }, | |
637 | .fixup_map1 = { 24 }, | |
638 | .errstr_unpriv = "R1 pointer comparison", | |
639 | .result_unpriv = REJECT, | |
640 | .result = ACCEPT, | |
641 | }, | |
642 | { | |
643 | "jump test 4", | |
644 | .insns = { | |
645 | BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, BPF_REG_10, 1), | |
646 | BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, BPF_REG_10, 2), | |
647 | BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, BPF_REG_10, 3), | |
648 | BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, BPF_REG_10, 4), | |
649 | BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, BPF_REG_10, 1), | |
650 | BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, BPF_REG_10, 2), | |
651 | BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, BPF_REG_10, 3), | |
652 | BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, BPF_REG_10, 4), | |
653 | BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, BPF_REG_10, 1), | |
654 | BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, BPF_REG_10, 2), | |
655 | BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, BPF_REG_10, 3), | |
656 | BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, BPF_REG_10, 4), | |
657 | BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, BPF_REG_10, 1), | |
658 | BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, BPF_REG_10, 2), | |
659 | BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, BPF_REG_10, 3), | |
660 | BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, BPF_REG_10, 4), | |
661 | BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, BPF_REG_10, 1), | |
662 | BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, BPF_REG_10, 2), | |
663 | BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, BPF_REG_10, 3), | |
664 | BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, BPF_REG_10, 4), | |
665 | BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, BPF_REG_10, 1), | |
666 | BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, BPF_REG_10, 2), | |
667 | BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, BPF_REG_10, 3), | |
668 | BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, BPF_REG_10, 4), | |
669 | BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, BPF_REG_10, 1), | |
670 | BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, BPF_REG_10, 2), | |
671 | BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, BPF_REG_10, 3), | |
672 | BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, BPF_REG_10, 4), | |
673 | BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, BPF_REG_10, 1), | |
674 | BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, BPF_REG_10, 2), | |
675 | BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, BPF_REG_10, 3), | |
676 | BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, BPF_REG_10, 4), | |
677 | BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, BPF_REG_10, 1), | |
678 | BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, BPF_REG_10, 2), | |
679 | BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, BPF_REG_10, 3), | |
680 | BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, BPF_REG_10, 4), | |
681 | BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, BPF_REG_10, 0), | |
682 | BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, BPF_REG_10, 0), | |
683 | BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, BPF_REG_10, 0), | |
684 | BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, BPF_REG_10, 0), | |
685 | BPF_MOV64_IMM(BPF_REG_0, 0), | |
686 | BPF_EXIT_INSN(), | |
687 | }, | |
688 | .errstr_unpriv = "R1 pointer comparison", | |
689 | .result_unpriv = REJECT, | |
690 | .result = ACCEPT, | |
691 | }, | |
692 | { | |
693 | "jump test 5", | |
694 | .insns = { | |
695 | BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), | |
696 | BPF_MOV64_REG(BPF_REG_3, BPF_REG_2), | |
697 | BPF_JMP_IMM(BPF_JGE, BPF_REG_1, 0, 2), | |
698 | BPF_STX_MEM(BPF_DW, BPF_REG_2, BPF_REG_3, -8), | |
699 | BPF_JMP_IMM(BPF_JA, 0, 0, 2), | |
700 | BPF_STX_MEM(BPF_DW, BPF_REG_2, BPF_REG_2, -8), | |
701 | BPF_JMP_IMM(BPF_JA, 0, 0, 0), | |
702 | BPF_MOV64_IMM(BPF_REG_0, 0), | |
703 | BPF_JMP_IMM(BPF_JGE, BPF_REG_1, 0, 2), | |
704 | BPF_STX_MEM(BPF_DW, BPF_REG_2, BPF_REG_3, -8), | |
705 | BPF_JMP_IMM(BPF_JA, 0, 0, 2), | |
706 | BPF_STX_MEM(BPF_DW, BPF_REG_2, BPF_REG_2, -8), | |
707 | BPF_JMP_IMM(BPF_JA, 0, 0, 0), | |
708 | BPF_MOV64_IMM(BPF_REG_0, 0), | |
709 | BPF_JMP_IMM(BPF_JGE, BPF_REG_1, 0, 2), | |
710 | BPF_STX_MEM(BPF_DW, BPF_REG_2, BPF_REG_3, -8), | |
711 | BPF_JMP_IMM(BPF_JA, 0, 0, 2), | |
712 | BPF_STX_MEM(BPF_DW, BPF_REG_2, BPF_REG_2, -8), | |
713 | BPF_JMP_IMM(BPF_JA, 0, 0, 0), | |
714 | BPF_MOV64_IMM(BPF_REG_0, 0), | |
715 | BPF_JMP_IMM(BPF_JGE, BPF_REG_1, 0, 2), | |
716 | BPF_STX_MEM(BPF_DW, BPF_REG_2, BPF_REG_3, -8), | |
717 | BPF_JMP_IMM(BPF_JA, 0, 0, 2), | |
718 | BPF_STX_MEM(BPF_DW, BPF_REG_2, BPF_REG_2, -8), | |
719 | BPF_JMP_IMM(BPF_JA, 0, 0, 0), | |
720 | BPF_MOV64_IMM(BPF_REG_0, 0), | |
721 | BPF_JMP_IMM(BPF_JGE, BPF_REG_1, 0, 2), | |
722 | BPF_STX_MEM(BPF_DW, BPF_REG_2, BPF_REG_3, -8), | |
723 | BPF_JMP_IMM(BPF_JA, 0, 0, 2), | |
724 | BPF_STX_MEM(BPF_DW, BPF_REG_2, BPF_REG_2, -8), | |
725 | BPF_JMP_IMM(BPF_JA, 0, 0, 0), | |
726 | BPF_MOV64_IMM(BPF_REG_0, 0), | |
727 | BPF_EXIT_INSN(), | |
728 | }, | |
729 | .errstr_unpriv = "R1 pointer comparison", | |
730 | .result_unpriv = REJECT, | |
731 | .result = ACCEPT, | |
732 | }, | |
733 | { | |
734 | "access skb fields ok", | |
735 | .insns = { | |
736 | BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1, | |
737 | offsetof(struct __sk_buff, len)), | |
738 | BPF_JMP_IMM(BPF_JGE, BPF_REG_0, 0, 1), | |
739 | BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1, | |
740 | offsetof(struct __sk_buff, mark)), | |
741 | BPF_JMP_IMM(BPF_JGE, BPF_REG_0, 0, 1), | |
742 | BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1, | |
743 | offsetof(struct __sk_buff, pkt_type)), | |
744 | BPF_JMP_IMM(BPF_JGE, BPF_REG_0, 0, 1), | |
745 | BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1, | |
746 | offsetof(struct __sk_buff, queue_mapping)), | |
747 | BPF_JMP_IMM(BPF_JGE, BPF_REG_0, 0, 0), | |
748 | BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1, | |
749 | offsetof(struct __sk_buff, protocol)), | |
750 | BPF_JMP_IMM(BPF_JGE, BPF_REG_0, 0, 0), | |
751 | BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1, | |
752 | offsetof(struct __sk_buff, vlan_present)), | |
753 | BPF_JMP_IMM(BPF_JGE, BPF_REG_0, 0, 0), | |
754 | BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1, | |
755 | offsetof(struct __sk_buff, vlan_tci)), | |
756 | BPF_JMP_IMM(BPF_JGE, BPF_REG_0, 0, 0), | |
757 | BPF_EXIT_INSN(), | |
758 | }, | |
759 | .result = ACCEPT, | |
760 | }, | |
761 | { | |
762 | "access skb fields bad1", | |
763 | .insns = { | |
764 | BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1, -4), | |
765 | BPF_EXIT_INSN(), | |
766 | }, | |
767 | .errstr = "invalid bpf_context access", | |
768 | .result = REJECT, | |
769 | }, | |
770 | { | |
771 | "access skb fields bad2", | |
772 | .insns = { | |
773 | BPF_JMP_IMM(BPF_JGE, BPF_REG_1, 0, 9), | |
774 | BPF_ST_MEM(BPF_DW, BPF_REG_10, -8, 0), | |
775 | BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), | |
776 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8), | |
777 | BPF_LD_MAP_FD(BPF_REG_1, 0), | |
778 | BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, | |
779 | BPF_FUNC_map_lookup_elem), | |
780 | BPF_JMP_IMM(BPF_JNE, BPF_REG_0, 0, 1), | |
781 | BPF_EXIT_INSN(), | |
782 | BPF_MOV64_REG(BPF_REG_1, BPF_REG_0), | |
783 | BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1, | |
784 | offsetof(struct __sk_buff, pkt_type)), | |
785 | BPF_EXIT_INSN(), | |
786 | }, | |
787 | .fixup_map1 = { 4 }, | |
788 | .errstr = "different pointers", | |
789 | .errstr_unpriv = "R1 pointer comparison", | |
790 | .result = REJECT, | |
791 | }, | |
792 | { | |
793 | "access skb fields bad3", | |
794 | .insns = { | |
795 | BPF_JMP_IMM(BPF_JGE, BPF_REG_1, 0, 2), | |
796 | BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1, | |
797 | offsetof(struct __sk_buff, pkt_type)), | |
798 | BPF_EXIT_INSN(), | |
799 | BPF_ST_MEM(BPF_DW, BPF_REG_10, -8, 0), | |
800 | BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), | |
801 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8), | |
802 | BPF_LD_MAP_FD(BPF_REG_1, 0), | |
803 | BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, | |
804 | BPF_FUNC_map_lookup_elem), | |
805 | BPF_JMP_IMM(BPF_JNE, BPF_REG_0, 0, 1), | |
806 | BPF_EXIT_INSN(), | |
807 | BPF_MOV64_REG(BPF_REG_1, BPF_REG_0), | |
808 | BPF_JMP_IMM(BPF_JA, 0, 0, -12), | |
809 | }, | |
810 | .fixup_map1 = { 6 }, | |
811 | .errstr = "different pointers", | |
812 | .errstr_unpriv = "R1 pointer comparison", | |
813 | .result = REJECT, | |
814 | }, | |
815 | { | |
816 | "access skb fields bad4", | |
817 | .insns = { | |
818 | BPF_JMP_IMM(BPF_JGE, BPF_REG_1, 0, 3), | |
819 | BPF_LDX_MEM(BPF_W, BPF_REG_1, BPF_REG_1, | |
820 | offsetof(struct __sk_buff, len)), | |
821 | BPF_MOV64_IMM(BPF_REG_0, 0), | |
822 | BPF_EXIT_INSN(), | |
823 | BPF_ST_MEM(BPF_DW, BPF_REG_10, -8, 0), | |
824 | BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), | |
825 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8), | |
826 | BPF_LD_MAP_FD(BPF_REG_1, 0), | |
827 | BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, | |
828 | BPF_FUNC_map_lookup_elem), | |
829 | BPF_JMP_IMM(BPF_JNE, BPF_REG_0, 0, 1), | |
830 | BPF_EXIT_INSN(), | |
831 | BPF_MOV64_REG(BPF_REG_1, BPF_REG_0), | |
832 | BPF_JMP_IMM(BPF_JA, 0, 0, -13), | |
833 | }, | |
834 | .fixup_map1 = { 7 }, | |
835 | .errstr = "different pointers", | |
836 | .errstr_unpriv = "R1 pointer comparison", | |
837 | .result = REJECT, | |
838 | }, | |
839 | { | |
840 | "check skb->mark is not writeable by sockets", | |
841 | .insns = { | |
842 | BPF_STX_MEM(BPF_W, BPF_REG_1, BPF_REG_1, | |
843 | offsetof(struct __sk_buff, mark)), | |
844 | BPF_EXIT_INSN(), | |
845 | }, | |
846 | .errstr = "invalid bpf_context access", | |
847 | .errstr_unpriv = "R1 leaks addr", | |
848 | .result = REJECT, | |
849 | }, | |
850 | { | |
851 | "check skb->tc_index is not writeable by sockets", | |
852 | .insns = { | |
853 | BPF_STX_MEM(BPF_W, BPF_REG_1, BPF_REG_1, | |
854 | offsetof(struct __sk_buff, tc_index)), | |
855 | BPF_EXIT_INSN(), | |
856 | }, | |
857 | .errstr = "invalid bpf_context access", | |
858 | .errstr_unpriv = "R1 leaks addr", | |
859 | .result = REJECT, | |
860 | }, | |
861 | { | |
862 | "check cb access: byte", | |
863 | .insns = { | |
864 | BPF_MOV64_IMM(BPF_REG_0, 0), | |
865 | BPF_STX_MEM(BPF_B, BPF_REG_1, BPF_REG_0, | |
866 | offsetof(struct __sk_buff, cb[0])), | |
867 | BPF_STX_MEM(BPF_B, BPF_REG_1, BPF_REG_0, | |
868 | offsetof(struct __sk_buff, cb[0]) + 1), | |
869 | BPF_STX_MEM(BPF_B, BPF_REG_1, BPF_REG_0, | |
870 | offsetof(struct __sk_buff, cb[0]) + 2), | |
871 | BPF_STX_MEM(BPF_B, BPF_REG_1, BPF_REG_0, | |
872 | offsetof(struct __sk_buff, cb[0]) + 3), | |
873 | BPF_STX_MEM(BPF_B, BPF_REG_1, BPF_REG_0, | |
874 | offsetof(struct __sk_buff, cb[1])), | |
875 | BPF_STX_MEM(BPF_B, BPF_REG_1, BPF_REG_0, | |
876 | offsetof(struct __sk_buff, cb[1]) + 1), | |
877 | BPF_STX_MEM(BPF_B, BPF_REG_1, BPF_REG_0, | |
878 | offsetof(struct __sk_buff, cb[1]) + 2), | |
879 | BPF_STX_MEM(BPF_B, BPF_REG_1, BPF_REG_0, | |
880 | offsetof(struct __sk_buff, cb[1]) + 3), | |
881 | BPF_STX_MEM(BPF_B, BPF_REG_1, BPF_REG_0, | |
882 | offsetof(struct __sk_buff, cb[2])), | |
883 | BPF_STX_MEM(BPF_B, BPF_REG_1, BPF_REG_0, | |
884 | offsetof(struct __sk_buff, cb[2]) + 1), | |
885 | BPF_STX_MEM(BPF_B, BPF_REG_1, BPF_REG_0, | |
886 | offsetof(struct __sk_buff, cb[2]) + 2), | |
887 | BPF_STX_MEM(BPF_B, BPF_REG_1, BPF_REG_0, | |
888 | offsetof(struct __sk_buff, cb[2]) + 3), | |
889 | BPF_STX_MEM(BPF_B, BPF_REG_1, BPF_REG_0, | |
890 | offsetof(struct __sk_buff, cb[3])), | |
891 | BPF_STX_MEM(BPF_B, BPF_REG_1, BPF_REG_0, | |
892 | offsetof(struct __sk_buff, cb[3]) + 1), | |
893 | BPF_STX_MEM(BPF_B, BPF_REG_1, BPF_REG_0, | |
894 | offsetof(struct __sk_buff, cb[3]) + 2), | |
895 | BPF_STX_MEM(BPF_B, BPF_REG_1, BPF_REG_0, | |
896 | offsetof(struct __sk_buff, cb[3]) + 3), | |
897 | BPF_STX_MEM(BPF_B, BPF_REG_1, BPF_REG_0, | |
898 | offsetof(struct __sk_buff, cb[4])), | |
899 | BPF_STX_MEM(BPF_B, BPF_REG_1, BPF_REG_0, | |
900 | offsetof(struct __sk_buff, cb[4]) + 1), | |
901 | BPF_STX_MEM(BPF_B, BPF_REG_1, BPF_REG_0, | |
902 | offsetof(struct __sk_buff, cb[4]) + 2), | |
903 | BPF_STX_MEM(BPF_B, BPF_REG_1, BPF_REG_0, | |
904 | offsetof(struct __sk_buff, cb[4]) + 3), | |
905 | BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_1, | |
906 | offsetof(struct __sk_buff, cb[0])), | |
907 | BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_1, | |
908 | offsetof(struct __sk_buff, cb[0]) + 1), | |
909 | BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_1, | |
910 | offsetof(struct __sk_buff, cb[0]) + 2), | |
911 | BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_1, | |
912 | offsetof(struct __sk_buff, cb[0]) + 3), | |
913 | BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_1, | |
914 | offsetof(struct __sk_buff, cb[1])), | |
915 | BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_1, | |
916 | offsetof(struct __sk_buff, cb[1]) + 1), | |
917 | BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_1, | |
918 | offsetof(struct __sk_buff, cb[1]) + 2), | |
919 | BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_1, | |
920 | offsetof(struct __sk_buff, cb[1]) + 3), | |
921 | BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_1, | |
922 | offsetof(struct __sk_buff, cb[2])), | |
923 | BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_1, | |
924 | offsetof(struct __sk_buff, cb[2]) + 1), | |
925 | BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_1, | |
926 | offsetof(struct __sk_buff, cb[2]) + 2), | |
927 | BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_1, | |
928 | offsetof(struct __sk_buff, cb[2]) + 3), | |
929 | BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_1, | |
930 | offsetof(struct __sk_buff, cb[3])), | |
931 | BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_1, | |
932 | offsetof(struct __sk_buff, cb[3]) + 1), | |
933 | BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_1, | |
934 | offsetof(struct __sk_buff, cb[3]) + 2), | |
935 | BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_1, | |
936 | offsetof(struct __sk_buff, cb[3]) + 3), | |
937 | BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_1, | |
938 | offsetof(struct __sk_buff, cb[4])), | |
939 | BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_1, | |
940 | offsetof(struct __sk_buff, cb[4]) + 1), | |
941 | BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_1, | |
942 | offsetof(struct __sk_buff, cb[4]) + 2), | |
943 | BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_1, | |
944 | offsetof(struct __sk_buff, cb[4]) + 3), | |
945 | BPF_EXIT_INSN(), | |
946 | }, | |
947 | .result = ACCEPT, | |
948 | }, | |
949 | { | |
950 | "check cb access: byte, oob 1", | |
951 | .insns = { | |
952 | BPF_MOV64_IMM(BPF_REG_0, 0), | |
953 | BPF_STX_MEM(BPF_B, BPF_REG_1, BPF_REG_0, | |
954 | offsetof(struct __sk_buff, cb[4]) + 4), | |
955 | BPF_EXIT_INSN(), | |
956 | }, | |
957 | .errstr = "invalid bpf_context access", | |
958 | .result = REJECT, | |
959 | }, | |
960 | { | |
961 | "check cb access: byte, oob 2", | |
962 | .insns = { | |
963 | BPF_MOV64_IMM(BPF_REG_0, 0), | |
964 | BPF_STX_MEM(BPF_B, BPF_REG_1, BPF_REG_0, | |
965 | offsetof(struct __sk_buff, cb[0]) - 1), | |
966 | BPF_EXIT_INSN(), | |
967 | }, | |
968 | .errstr = "invalid bpf_context access", | |
969 | .result = REJECT, | |
970 | }, | |
971 | { | |
972 | "check cb access: byte, oob 3", | |
973 | .insns = { | |
974 | BPF_MOV64_IMM(BPF_REG_0, 0), | |
975 | BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_1, | |
976 | offsetof(struct __sk_buff, cb[4]) + 4), | |
977 | BPF_EXIT_INSN(), | |
978 | }, | |
979 | .errstr = "invalid bpf_context access", | |
980 | .result = REJECT, | |
981 | }, | |
982 | { | |
983 | "check cb access: byte, oob 4", | |
984 | .insns = { | |
985 | BPF_MOV64_IMM(BPF_REG_0, 0), | |
986 | BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_1, | |
987 | offsetof(struct __sk_buff, cb[0]) - 1), | |
988 | BPF_EXIT_INSN(), | |
989 | }, | |
990 | .errstr = "invalid bpf_context access", | |
991 | .result = REJECT, | |
992 | }, | |
993 | { | |
994 | "check cb access: byte, wrong type", | |
995 | .insns = { | |
996 | BPF_MOV64_IMM(BPF_REG_0, 0), | |
997 | BPF_STX_MEM(BPF_B, BPF_REG_1, BPF_REG_0, | |
998 | offsetof(struct __sk_buff, cb[0])), | |
999 | BPF_EXIT_INSN(), | |
1000 | }, | |
1001 | .errstr = "invalid bpf_context access", | |
1002 | .result = REJECT, | |
1003 | .prog_type = BPF_PROG_TYPE_CGROUP_SOCK, | |
1004 | }, | |
1005 | { | |
1006 | "check cb access: half", | |
1007 | .insns = { | |
1008 | BPF_MOV64_IMM(BPF_REG_0, 0), | |
1009 | BPF_STX_MEM(BPF_H, BPF_REG_1, BPF_REG_0, | |
1010 | offsetof(struct __sk_buff, cb[0])), | |
1011 | BPF_STX_MEM(BPF_H, BPF_REG_1, BPF_REG_0, | |
1012 | offsetof(struct __sk_buff, cb[0]) + 2), | |
1013 | BPF_STX_MEM(BPF_H, BPF_REG_1, BPF_REG_0, | |
1014 | offsetof(struct __sk_buff, cb[1])), | |
1015 | BPF_STX_MEM(BPF_H, BPF_REG_1, BPF_REG_0, | |
1016 | offsetof(struct __sk_buff, cb[1]) + 2), | |
1017 | BPF_STX_MEM(BPF_H, BPF_REG_1, BPF_REG_0, | |
1018 | offsetof(struct __sk_buff, cb[2])), | |
1019 | BPF_STX_MEM(BPF_H, BPF_REG_1, BPF_REG_0, | |
1020 | offsetof(struct __sk_buff, cb[2]) + 2), | |
1021 | BPF_STX_MEM(BPF_H, BPF_REG_1, BPF_REG_0, | |
1022 | offsetof(struct __sk_buff, cb[3])), | |
1023 | BPF_STX_MEM(BPF_H, BPF_REG_1, BPF_REG_0, | |
1024 | offsetof(struct __sk_buff, cb[3]) + 2), | |
1025 | BPF_STX_MEM(BPF_H, BPF_REG_1, BPF_REG_0, | |
1026 | offsetof(struct __sk_buff, cb[4])), | |
1027 | BPF_STX_MEM(BPF_H, BPF_REG_1, BPF_REG_0, | |
1028 | offsetof(struct __sk_buff, cb[4]) + 2), | |
1029 | BPF_LDX_MEM(BPF_H, BPF_REG_0, BPF_REG_1, | |
1030 | offsetof(struct __sk_buff, cb[0])), | |
1031 | BPF_LDX_MEM(BPF_H, BPF_REG_0, BPF_REG_1, | |
1032 | offsetof(struct __sk_buff, cb[0]) + 2), | |
1033 | BPF_LDX_MEM(BPF_H, BPF_REG_0, BPF_REG_1, | |
1034 | offsetof(struct __sk_buff, cb[1])), | |
1035 | BPF_LDX_MEM(BPF_H, BPF_REG_0, BPF_REG_1, | |
1036 | offsetof(struct __sk_buff, cb[1]) + 2), | |
1037 | BPF_LDX_MEM(BPF_H, BPF_REG_0, BPF_REG_1, | |
1038 | offsetof(struct __sk_buff, cb[2])), | |
1039 | BPF_LDX_MEM(BPF_H, BPF_REG_0, BPF_REG_1, | |
1040 | offsetof(struct __sk_buff, cb[2]) + 2), | |
1041 | BPF_LDX_MEM(BPF_H, BPF_REG_0, BPF_REG_1, | |
1042 | offsetof(struct __sk_buff, cb[3])), | |
1043 | BPF_LDX_MEM(BPF_H, BPF_REG_0, BPF_REG_1, | |
1044 | offsetof(struct __sk_buff, cb[3]) + 2), | |
1045 | BPF_LDX_MEM(BPF_H, BPF_REG_0, BPF_REG_1, | |
1046 | offsetof(struct __sk_buff, cb[4])), | |
1047 | BPF_LDX_MEM(BPF_H, BPF_REG_0, BPF_REG_1, | |
1048 | offsetof(struct __sk_buff, cb[4]) + 2), | |
1049 | BPF_EXIT_INSN(), | |
1050 | }, | |
1051 | .result = ACCEPT, | |
1052 | }, | |
1053 | { | |
1054 | "check cb access: half, unaligned", | |
1055 | .insns = { | |
1056 | BPF_MOV64_IMM(BPF_REG_0, 0), | |
1057 | BPF_STX_MEM(BPF_H, BPF_REG_1, BPF_REG_0, | |
1058 | offsetof(struct __sk_buff, cb[0]) + 1), | |
1059 | BPF_EXIT_INSN(), | |
1060 | }, | |
1061 | .errstr = "misaligned access", | |
1062 | .result = REJECT, | |
1063 | }, | |
1064 | { | |
1065 | "check cb access: half, oob 1", | |
1066 | .insns = { | |
1067 | BPF_MOV64_IMM(BPF_REG_0, 0), | |
1068 | BPF_STX_MEM(BPF_H, BPF_REG_1, BPF_REG_0, | |
1069 | offsetof(struct __sk_buff, cb[4]) + 4), | |
1070 | BPF_EXIT_INSN(), | |
1071 | }, | |
1072 | .errstr = "invalid bpf_context access", | |
1073 | .result = REJECT, | |
1074 | }, | |
1075 | { | |
1076 | "check cb access: half, oob 2", | |
1077 | .insns = { | |
1078 | BPF_MOV64_IMM(BPF_REG_0, 0), | |
1079 | BPF_STX_MEM(BPF_H, BPF_REG_1, BPF_REG_0, | |
1080 | offsetof(struct __sk_buff, cb[0]) - 2), | |
1081 | BPF_EXIT_INSN(), | |
1082 | }, | |
1083 | .errstr = "invalid bpf_context access", | |
1084 | .result = REJECT, | |
1085 | }, | |
1086 | { | |
1087 | "check cb access: half, oob 3", | |
1088 | .insns = { | |
1089 | BPF_MOV64_IMM(BPF_REG_0, 0), | |
1090 | BPF_LDX_MEM(BPF_H, BPF_REG_0, BPF_REG_1, | |
1091 | offsetof(struct __sk_buff, cb[4]) + 4), | |
1092 | BPF_EXIT_INSN(), | |
1093 | }, | |
1094 | .errstr = "invalid bpf_context access", | |
1095 | .result = REJECT, | |
1096 | }, | |
1097 | { | |
1098 | "check cb access: half, oob 4", | |
1099 | .insns = { | |
1100 | BPF_MOV64_IMM(BPF_REG_0, 0), | |
1101 | BPF_LDX_MEM(BPF_H, BPF_REG_0, BPF_REG_1, | |
1102 | offsetof(struct __sk_buff, cb[0]) - 2), | |
1103 | BPF_EXIT_INSN(), | |
1104 | }, | |
1105 | .errstr = "invalid bpf_context access", | |
1106 | .result = REJECT, | |
1107 | }, | |
1108 | { | |
1109 | "check cb access: half, wrong type", | |
1110 | .insns = { | |
1111 | BPF_MOV64_IMM(BPF_REG_0, 0), | |
1112 | BPF_STX_MEM(BPF_H, BPF_REG_1, BPF_REG_0, | |
1113 | offsetof(struct __sk_buff, cb[0])), | |
1114 | BPF_EXIT_INSN(), | |
1115 | }, | |
1116 | .errstr = "invalid bpf_context access", | |
1117 | .result = REJECT, | |
1118 | .prog_type = BPF_PROG_TYPE_CGROUP_SOCK, | |
1119 | }, | |
1120 | { | |
1121 | "check cb access: word", | |
1122 | .insns = { | |
1123 | BPF_MOV64_IMM(BPF_REG_0, 0), | |
1124 | BPF_STX_MEM(BPF_W, BPF_REG_1, BPF_REG_0, | |
1125 | offsetof(struct __sk_buff, cb[0])), | |
1126 | BPF_STX_MEM(BPF_W, BPF_REG_1, BPF_REG_0, | |
1127 | offsetof(struct __sk_buff, cb[1])), | |
1128 | BPF_STX_MEM(BPF_W, BPF_REG_1, BPF_REG_0, | |
1129 | offsetof(struct __sk_buff, cb[2])), | |
1130 | BPF_STX_MEM(BPF_W, BPF_REG_1, BPF_REG_0, | |
1131 | offsetof(struct __sk_buff, cb[3])), | |
1132 | BPF_STX_MEM(BPF_W, BPF_REG_1, BPF_REG_0, | |
1133 | offsetof(struct __sk_buff, cb[4])), | |
1134 | BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1, | |
1135 | offsetof(struct __sk_buff, cb[0])), | |
1136 | BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1, | |
1137 | offsetof(struct __sk_buff, cb[1])), | |
1138 | BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1, | |
1139 | offsetof(struct __sk_buff, cb[2])), | |
1140 | BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1, | |
1141 | offsetof(struct __sk_buff, cb[3])), | |
1142 | BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1, | |
1143 | offsetof(struct __sk_buff, cb[4])), | |
1144 | BPF_EXIT_INSN(), | |
1145 | }, | |
1146 | .result = ACCEPT, | |
1147 | }, | |
1148 | { | |
1149 | "check cb access: word, unaligned 1", | |
1150 | .insns = { | |
1151 | BPF_MOV64_IMM(BPF_REG_0, 0), | |
1152 | BPF_STX_MEM(BPF_W, BPF_REG_1, BPF_REG_0, | |
1153 | offsetof(struct __sk_buff, cb[0]) + 2), | |
1154 | BPF_EXIT_INSN(), | |
1155 | }, | |
1156 | .errstr = "misaligned access", | |
1157 | .result = REJECT, | |
1158 | }, | |
1159 | { | |
1160 | "check cb access: word, unaligned 2", | |
1161 | .insns = { | |
1162 | BPF_MOV64_IMM(BPF_REG_0, 0), | |
1163 | BPF_STX_MEM(BPF_W, BPF_REG_1, BPF_REG_0, | |
1164 | offsetof(struct __sk_buff, cb[4]) + 1), | |
1165 | BPF_EXIT_INSN(), | |
1166 | }, | |
1167 | .errstr = "misaligned access", | |
1168 | .result = REJECT, | |
1169 | }, | |
1170 | { | |
1171 | "check cb access: word, unaligned 3", | |
1172 | .insns = { | |
1173 | BPF_MOV64_IMM(BPF_REG_0, 0), | |
1174 | BPF_STX_MEM(BPF_W, BPF_REG_1, BPF_REG_0, | |
1175 | offsetof(struct __sk_buff, cb[4]) + 2), | |
1176 | BPF_EXIT_INSN(), | |
1177 | }, | |
1178 | .errstr = "misaligned access", | |
1179 | .result = REJECT, | |
1180 | }, | |
1181 | { | |
1182 | "check cb access: word, unaligned 4", | |
1183 | .insns = { | |
1184 | BPF_MOV64_IMM(BPF_REG_0, 0), | |
1185 | BPF_STX_MEM(BPF_W, BPF_REG_1, BPF_REG_0, | |
1186 | offsetof(struct __sk_buff, cb[4]) + 3), | |
1187 | BPF_EXIT_INSN(), | |
1188 | }, | |
1189 | .errstr = "misaligned access", | |
1190 | .result = REJECT, | |
1191 | }, | |
1192 | { | |
1193 | "check cb access: double", | |
1194 | .insns = { | |
1195 | BPF_MOV64_IMM(BPF_REG_0, 0), | |
1196 | BPF_STX_MEM(BPF_DW, BPF_REG_1, BPF_REG_0, | |
1197 | offsetof(struct __sk_buff, cb[0])), | |
1198 | BPF_STX_MEM(BPF_DW, BPF_REG_1, BPF_REG_0, | |
1199 | offsetof(struct __sk_buff, cb[2])), | |
1200 | BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_1, | |
1201 | offsetof(struct __sk_buff, cb[0])), | |
1202 | BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_1, | |
1203 | offsetof(struct __sk_buff, cb[2])), | |
1204 | BPF_EXIT_INSN(), | |
1205 | }, | |
1206 | .result = ACCEPT, | |
1207 | }, | |
1208 | { | |
1209 | "check cb access: double, unaligned 1", | |
1210 | .insns = { | |
1211 | BPF_MOV64_IMM(BPF_REG_0, 0), | |
1212 | BPF_STX_MEM(BPF_DW, BPF_REG_1, BPF_REG_0, | |
1213 | offsetof(struct __sk_buff, cb[1])), | |
1214 | BPF_EXIT_INSN(), | |
1215 | }, | |
1216 | .errstr = "misaligned access", | |
1217 | .result = REJECT, | |
1218 | }, | |
1219 | { | |
1220 | "check cb access: double, unaligned 2", | |
1221 | .insns = { | |
1222 | BPF_MOV64_IMM(BPF_REG_0, 0), | |
1223 | BPF_STX_MEM(BPF_DW, BPF_REG_1, BPF_REG_0, | |
1224 | offsetof(struct __sk_buff, cb[3])), | |
1225 | BPF_EXIT_INSN(), | |
1226 | }, | |
1227 | .errstr = "misaligned access", | |
1228 | .result = REJECT, | |
1229 | }, | |
1230 | { | |
1231 | "check cb access: double, oob 1", | |
1232 | .insns = { | |
1233 | BPF_MOV64_IMM(BPF_REG_0, 0), | |
1234 | BPF_STX_MEM(BPF_DW, BPF_REG_1, BPF_REG_0, | |
1235 | offsetof(struct __sk_buff, cb[4])), | |
1236 | BPF_EXIT_INSN(), | |
1237 | }, | |
1238 | .errstr = "invalid bpf_context access", | |
1239 | .result = REJECT, | |
1240 | }, | |
1241 | { | |
1242 | "check cb access: double, oob 2", | |
1243 | .insns = { | |
1244 | BPF_MOV64_IMM(BPF_REG_0, 0), | |
1245 | BPF_STX_MEM(BPF_DW, BPF_REG_1, BPF_REG_0, | |
1246 | offsetof(struct __sk_buff, cb[4]) + 8), | |
1247 | BPF_EXIT_INSN(), | |
1248 | }, | |
1249 | .errstr = "invalid bpf_context access", | |
1250 | .result = REJECT, | |
1251 | }, | |
1252 | { | |
1253 | "check cb access: double, oob 3", | |
1254 | .insns = { | |
1255 | BPF_MOV64_IMM(BPF_REG_0, 0), | |
1256 | BPF_STX_MEM(BPF_DW, BPF_REG_1, BPF_REG_0, | |
1257 | offsetof(struct __sk_buff, cb[0]) - 8), | |
1258 | BPF_EXIT_INSN(), | |
1259 | }, | |
1260 | .errstr = "invalid bpf_context access", | |
1261 | .result = REJECT, | |
1262 | }, | |
1263 | { | |
1264 | "check cb access: double, oob 4", | |
1265 | .insns = { | |
1266 | BPF_MOV64_IMM(BPF_REG_0, 0), | |
1267 | BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_1, | |
1268 | offsetof(struct __sk_buff, cb[4])), | |
1269 | BPF_EXIT_INSN(), | |
1270 | }, | |
1271 | .errstr = "invalid bpf_context access", | |
1272 | .result = REJECT, | |
1273 | }, | |
1274 | { | |
1275 | "check cb access: double, oob 5", | |
1276 | .insns = { | |
1277 | BPF_MOV64_IMM(BPF_REG_0, 0), | |
1278 | BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_1, | |
1279 | offsetof(struct __sk_buff, cb[4]) + 8), | |
1280 | BPF_EXIT_INSN(), | |
1281 | }, | |
1282 | .errstr = "invalid bpf_context access", | |
1283 | .result = REJECT, | |
1284 | }, | |
1285 | { | |
1286 | "check cb access: double, oob 6", | |
1287 | .insns = { | |
1288 | BPF_MOV64_IMM(BPF_REG_0, 0), | |
1289 | BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_1, | |
1290 | offsetof(struct __sk_buff, cb[0]) - 8), | |
1291 | BPF_EXIT_INSN(), | |
1292 | }, | |
1293 | .errstr = "invalid bpf_context access", | |
1294 | .result = REJECT, | |
1295 | }, | |
1296 | { | |
1297 | "check cb access: double, wrong type", | |
1298 | .insns = { | |
1299 | BPF_MOV64_IMM(BPF_REG_0, 0), | |
1300 | BPF_STX_MEM(BPF_DW, BPF_REG_1, BPF_REG_0, | |
1301 | offsetof(struct __sk_buff, cb[0])), | |
1302 | BPF_EXIT_INSN(), | |
1303 | }, | |
1304 | .errstr = "invalid bpf_context access", | |
1305 | .result = REJECT, | |
1306 | .prog_type = BPF_PROG_TYPE_CGROUP_SOCK, | |
1307 | }, | |
1308 | { | |
1309 | "check out of range skb->cb access", | |
1310 | .insns = { | |
1311 | BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1, | |
1312 | offsetof(struct __sk_buff, cb[0]) + 256), | |
1313 | BPF_EXIT_INSN(), | |
1314 | }, | |
1315 | .errstr = "invalid bpf_context access", | |
1316 | .errstr_unpriv = "", | |
1317 | .result = REJECT, | |
1318 | .prog_type = BPF_PROG_TYPE_SCHED_ACT, | |
1319 | }, | |
1320 | { | |
1321 | "write skb fields from socket prog", | |
1322 | .insns = { | |
1323 | BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1, | |
1324 | offsetof(struct __sk_buff, cb[4])), | |
1325 | BPF_JMP_IMM(BPF_JGE, BPF_REG_0, 0, 1), | |
1326 | BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1, | |
1327 | offsetof(struct __sk_buff, mark)), | |
1328 | BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1, | |
1329 | offsetof(struct __sk_buff, tc_index)), | |
1330 | BPF_JMP_IMM(BPF_JGE, BPF_REG_0, 0, 1), | |
1331 | BPF_STX_MEM(BPF_W, BPF_REG_1, BPF_REG_1, | |
1332 | offsetof(struct __sk_buff, cb[0])), | |
1333 | BPF_STX_MEM(BPF_W, BPF_REG_1, BPF_REG_1, | |
1334 | offsetof(struct __sk_buff, cb[2])), | |
1335 | BPF_EXIT_INSN(), | |
1336 | }, | |
1337 | .result = ACCEPT, | |
1338 | .errstr_unpriv = "R1 leaks addr", | |
1339 | .result_unpriv = REJECT, | |
1340 | }, | |
1341 | { | |
1342 | "write skb fields from tc_cls_act prog", | |
1343 | .insns = { | |
1344 | BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1, | |
1345 | offsetof(struct __sk_buff, cb[0])), | |
1346 | BPF_STX_MEM(BPF_W, BPF_REG_1, BPF_REG_0, | |
1347 | offsetof(struct __sk_buff, mark)), | |
1348 | BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1, | |
1349 | offsetof(struct __sk_buff, tc_index)), | |
1350 | BPF_STX_MEM(BPF_W, BPF_REG_1, BPF_REG_0, | |
1351 | offsetof(struct __sk_buff, tc_index)), | |
1352 | BPF_STX_MEM(BPF_W, BPF_REG_1, BPF_REG_0, | |
1353 | offsetof(struct __sk_buff, cb[3])), | |
1354 | BPF_EXIT_INSN(), | |
1355 | }, | |
1356 | .errstr_unpriv = "", | |
1357 | .result_unpriv = REJECT, | |
1358 | .result = ACCEPT, | |
1359 | .prog_type = BPF_PROG_TYPE_SCHED_CLS, | |
1360 | }, | |
1361 | { | |
1362 | "PTR_TO_STACK store/load", | |
1363 | .insns = { | |
1364 | BPF_MOV64_REG(BPF_REG_1, BPF_REG_10), | |
1365 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, -10), | |
1366 | BPF_ST_MEM(BPF_DW, BPF_REG_1, 2, 0xfaceb00c), | |
1367 | BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_1, 2), | |
1368 | BPF_EXIT_INSN(), | |
1369 | }, | |
1370 | .result = ACCEPT, | |
1371 | }, | |
1372 | { | |
1373 | "PTR_TO_STACK store/load - bad alignment on off", | |
1374 | .insns = { | |
1375 | BPF_MOV64_REG(BPF_REG_1, BPF_REG_10), | |
1376 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, -8), | |
1377 | BPF_ST_MEM(BPF_DW, BPF_REG_1, 2, 0xfaceb00c), | |
1378 | BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_1, 2), | |
1379 | BPF_EXIT_INSN(), | |
1380 | }, | |
1381 | .result = REJECT, | |
1382 | .errstr = "misaligned access off -6 size 8", | |
1383 | }, | |
1384 | { | |
1385 | "PTR_TO_STACK store/load - bad alignment on reg", | |
1386 | .insns = { | |
1387 | BPF_MOV64_REG(BPF_REG_1, BPF_REG_10), | |
1388 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, -10), | |
1389 | BPF_ST_MEM(BPF_DW, BPF_REG_1, 8, 0xfaceb00c), | |
1390 | BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_1, 8), | |
1391 | BPF_EXIT_INSN(), | |
1392 | }, | |
1393 | .result = REJECT, | |
1394 | .errstr = "misaligned access off -2 size 8", | |
1395 | }, | |
1396 | { | |
1397 | "PTR_TO_STACK store/load - out of bounds low", | |
1398 | .insns = { | |
1399 | BPF_MOV64_REG(BPF_REG_1, BPF_REG_10), | |
1400 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, -80000), | |
1401 | BPF_ST_MEM(BPF_DW, BPF_REG_1, 8, 0xfaceb00c), | |
1402 | BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_1, 8), | |
1403 | BPF_EXIT_INSN(), | |
1404 | }, | |
1405 | .result = REJECT, | |
1406 | .errstr = "invalid stack off=-79992 size=8", | |
1407 | }, | |
1408 | { | |
1409 | "PTR_TO_STACK store/load - out of bounds high", | |
1410 | .insns = { | |
1411 | BPF_MOV64_REG(BPF_REG_1, BPF_REG_10), | |
1412 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, -8), | |
1413 | BPF_ST_MEM(BPF_DW, BPF_REG_1, 8, 0xfaceb00c), | |
1414 | BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_1, 8), | |
1415 | BPF_EXIT_INSN(), | |
1416 | }, | |
1417 | .result = REJECT, | |
1418 | .errstr = "invalid stack off=0 size=8", | |
1419 | }, | |
1420 | { | |
1421 | "unpriv: return pointer", | |
1422 | .insns = { | |
1423 | BPF_MOV64_REG(BPF_REG_0, BPF_REG_10), | |
1424 | BPF_EXIT_INSN(), | |
1425 | }, | |
1426 | .result = ACCEPT, | |
1427 | .result_unpriv = REJECT, | |
1428 | .errstr_unpriv = "R0 leaks addr", | |
1429 | }, | |
1430 | { | |
1431 | "unpriv: add const to pointer", | |
1432 | .insns = { | |
1433 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, 8), | |
1434 | BPF_MOV64_IMM(BPF_REG_0, 0), | |
1435 | BPF_EXIT_INSN(), | |
1436 | }, | |
1437 | .result = ACCEPT, | |
1438 | .result_unpriv = REJECT, | |
1439 | .errstr_unpriv = "R1 pointer arithmetic", | |
1440 | }, | |
1441 | { | |
1442 | "unpriv: add pointer to pointer", | |
1443 | .insns = { | |
1444 | BPF_ALU64_REG(BPF_ADD, BPF_REG_1, BPF_REG_10), | |
1445 | BPF_MOV64_IMM(BPF_REG_0, 0), | |
1446 | BPF_EXIT_INSN(), | |
1447 | }, | |
1448 | .result = ACCEPT, | |
1449 | .result_unpriv = REJECT, | |
1450 | .errstr_unpriv = "R1 pointer arithmetic", | |
1451 | }, | |
1452 | { | |
1453 | "unpriv: neg pointer", | |
1454 | .insns = { | |
1455 | BPF_ALU64_IMM(BPF_NEG, BPF_REG_1, 0), | |
1456 | BPF_MOV64_IMM(BPF_REG_0, 0), | |
1457 | BPF_EXIT_INSN(), | |
1458 | }, | |
1459 | .result = ACCEPT, | |
1460 | .result_unpriv = REJECT, | |
1461 | .errstr_unpriv = "R1 pointer arithmetic", | |
1462 | }, | |
1463 | { | |
1464 | "unpriv: cmp pointer with const", | |
1465 | .insns = { | |
1466 | BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, 0, 0), | |
1467 | BPF_MOV64_IMM(BPF_REG_0, 0), | |
1468 | BPF_EXIT_INSN(), | |
1469 | }, | |
1470 | .result = ACCEPT, | |
1471 | .result_unpriv = REJECT, | |
1472 | .errstr_unpriv = "R1 pointer comparison", | |
1473 | }, | |
1474 | { | |
1475 | "unpriv: cmp pointer with pointer", | |
1476 | .insns = { | |
1477 | BPF_JMP_REG(BPF_JEQ, BPF_REG_1, BPF_REG_10, 0), | |
1478 | BPF_MOV64_IMM(BPF_REG_0, 0), | |
1479 | BPF_EXIT_INSN(), | |
1480 | }, | |
1481 | .result = ACCEPT, | |
1482 | .result_unpriv = REJECT, | |
1483 | .errstr_unpriv = "R10 pointer comparison", | |
1484 | }, | |
1485 | { | |
1486 | "unpriv: check that printk is disallowed", | |
1487 | .insns = { | |
1488 | BPF_ST_MEM(BPF_DW, BPF_REG_10, -8, 0), | |
1489 | BPF_MOV64_REG(BPF_REG_1, BPF_REG_10), | |
1490 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, -8), | |
1491 | BPF_MOV64_IMM(BPF_REG_2, 8), | |
1492 | BPF_MOV64_REG(BPF_REG_3, BPF_REG_1), | |
1493 | BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, | |
1494 | BPF_FUNC_trace_printk), | |
1495 | BPF_MOV64_IMM(BPF_REG_0, 0), | |
1496 | BPF_EXIT_INSN(), | |
1497 | }, | |
1498 | .errstr_unpriv = "unknown func bpf_trace_printk#6", | |
1499 | .result_unpriv = REJECT, | |
1500 | .result = ACCEPT, | |
1501 | }, | |
1502 | { | |
1503 | "unpriv: pass pointer to helper function", | |
1504 | .insns = { | |
1505 | BPF_ST_MEM(BPF_DW, BPF_REG_10, -8, 0), | |
1506 | BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), | |
1507 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8), | |
1508 | BPF_LD_MAP_FD(BPF_REG_1, 0), | |
1509 | BPF_MOV64_REG(BPF_REG_3, BPF_REG_2), | |
1510 | BPF_MOV64_REG(BPF_REG_4, BPF_REG_2), | |
1511 | BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, | |
1512 | BPF_FUNC_map_update_elem), | |
1513 | BPF_MOV64_IMM(BPF_REG_0, 0), | |
1514 | BPF_EXIT_INSN(), | |
1515 | }, | |
1516 | .fixup_map1 = { 3 }, | |
1517 | .errstr_unpriv = "R4 leaks addr", | |
1518 | .result_unpriv = REJECT, | |
1519 | .result = ACCEPT, | |
1520 | }, | |
1521 | { | |
1522 | "unpriv: indirectly pass pointer on stack to helper function", | |
1523 | .insns = { | |
1524 | BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_10, -8), | |
1525 | BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), | |
1526 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8), | |
1527 | BPF_LD_MAP_FD(BPF_REG_1, 0), | |
1528 | BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, | |
1529 | BPF_FUNC_map_lookup_elem), | |
1530 | BPF_MOV64_IMM(BPF_REG_0, 0), | |
1531 | BPF_EXIT_INSN(), | |
1532 | }, | |
1533 | .fixup_map1 = { 3 }, | |
1534 | .errstr = "invalid indirect read from stack off -8+0 size 8", | |
1535 | .result = REJECT, | |
1536 | }, | |
1537 | { | |
1538 | "unpriv: mangle pointer on stack 1", | |
1539 | .insns = { | |
1540 | BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_10, -8), | |
1541 | BPF_ST_MEM(BPF_W, BPF_REG_10, -8, 0), | |
1542 | BPF_MOV64_IMM(BPF_REG_0, 0), | |
1543 | BPF_EXIT_INSN(), | |
1544 | }, | |
1545 | .errstr_unpriv = "attempt to corrupt spilled", | |
1546 | .result_unpriv = REJECT, | |
1547 | .result = ACCEPT, | |
1548 | }, | |
1549 | { | |
1550 | "unpriv: mangle pointer on stack 2", | |
1551 | .insns = { | |
1552 | BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_10, -8), | |
1553 | BPF_ST_MEM(BPF_B, BPF_REG_10, -1, 0), | |
1554 | BPF_MOV64_IMM(BPF_REG_0, 0), | |
1555 | BPF_EXIT_INSN(), | |
1556 | }, | |
1557 | .errstr_unpriv = "attempt to corrupt spilled", | |
1558 | .result_unpriv = REJECT, | |
1559 | .result = ACCEPT, | |
1560 | }, | |
1561 | { | |
1562 | "unpriv: read pointer from stack in small chunks", | |
1563 | .insns = { | |
1564 | BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_10, -8), | |
1565 | BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_10, -8), | |
1566 | BPF_MOV64_IMM(BPF_REG_0, 0), | |
1567 | BPF_EXIT_INSN(), | |
1568 | }, | |
1569 | .errstr = "invalid size", | |
1570 | .result = REJECT, | |
1571 | }, | |
1572 | { | |
1573 | "unpriv: write pointer into ctx", | |
1574 | .insns = { | |
1575 | BPF_STX_MEM(BPF_DW, BPF_REG_1, BPF_REG_1, 0), | |
1576 | BPF_MOV64_IMM(BPF_REG_0, 0), | |
1577 | BPF_EXIT_INSN(), | |
1578 | }, | |
1579 | .errstr_unpriv = "R1 leaks addr", | |
1580 | .result_unpriv = REJECT, | |
1581 | .errstr = "invalid bpf_context access", | |
1582 | .result = REJECT, | |
1583 | }, | |
1584 | { | |
1585 | "unpriv: spill/fill of ctx", | |
1586 | .insns = { | |
1587 | BPF_ALU64_REG(BPF_MOV, BPF_REG_6, BPF_REG_10), | |
1588 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_6, -8), | |
1589 | BPF_STX_MEM(BPF_DW, BPF_REG_6, BPF_REG_1, 0), | |
1590 | BPF_LDX_MEM(BPF_DW, BPF_REG_1, BPF_REG_6, 0), | |
1591 | BPF_MOV64_IMM(BPF_REG_0, 0), | |
1592 | BPF_EXIT_INSN(), | |
1593 | }, | |
1594 | .result = ACCEPT, | |
1595 | }, | |
1596 | { | |
1597 | "unpriv: spill/fill of ctx 2", | |
1598 | .insns = { | |
1599 | BPF_ALU64_REG(BPF_MOV, BPF_REG_6, BPF_REG_10), | |
1600 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_6, -8), | |
1601 | BPF_STX_MEM(BPF_DW, BPF_REG_6, BPF_REG_1, 0), | |
1602 | BPF_LDX_MEM(BPF_DW, BPF_REG_1, BPF_REG_6, 0), | |
1603 | BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, | |
1604 | BPF_FUNC_get_hash_recalc), | |
1605 | BPF_EXIT_INSN(), | |
1606 | }, | |
1607 | .result = ACCEPT, | |
1608 | .prog_type = BPF_PROG_TYPE_SCHED_CLS, | |
1609 | }, | |
1610 | { | |
1611 | "unpriv: spill/fill of ctx 3", | |
1612 | .insns = { | |
1613 | BPF_ALU64_REG(BPF_MOV, BPF_REG_6, BPF_REG_10), | |
1614 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_6, -8), | |
1615 | BPF_STX_MEM(BPF_DW, BPF_REG_6, BPF_REG_1, 0), | |
1616 | BPF_STX_MEM(BPF_DW, BPF_REG_6, BPF_REG_10, 0), | |
1617 | BPF_LDX_MEM(BPF_DW, BPF_REG_1, BPF_REG_6, 0), | |
1618 | BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, | |
1619 | BPF_FUNC_get_hash_recalc), | |
1620 | BPF_EXIT_INSN(), | |
1621 | }, | |
1622 | .result = REJECT, | |
1623 | .errstr = "R1 type=fp expected=ctx", | |
1624 | .prog_type = BPF_PROG_TYPE_SCHED_CLS, | |
1625 | }, | |
1626 | { | |
1627 | "unpriv: spill/fill of ctx 4", | |
1628 | .insns = { | |
1629 | BPF_ALU64_REG(BPF_MOV, BPF_REG_6, BPF_REG_10), | |
1630 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_6, -8), | |
1631 | BPF_STX_MEM(BPF_DW, BPF_REG_6, BPF_REG_1, 0), | |
1632 | BPF_MOV64_IMM(BPF_REG_0, 1), | |
1633 | BPF_RAW_INSN(BPF_STX | BPF_XADD | BPF_DW, BPF_REG_10, | |
1634 | BPF_REG_0, -8, 0), | |
1635 | BPF_LDX_MEM(BPF_DW, BPF_REG_1, BPF_REG_6, 0), | |
1636 | BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, | |
1637 | BPF_FUNC_get_hash_recalc), | |
1638 | BPF_EXIT_INSN(), | |
1639 | }, | |
1640 | .result = REJECT, | |
1641 | .errstr = "R1 type=inv expected=ctx", | |
1642 | .prog_type = BPF_PROG_TYPE_SCHED_CLS, | |
1643 | }, | |
1644 | { | |
1645 | "unpriv: spill/fill of different pointers stx", | |
1646 | .insns = { | |
1647 | BPF_MOV64_IMM(BPF_REG_3, 42), | |
1648 | BPF_ALU64_REG(BPF_MOV, BPF_REG_6, BPF_REG_10), | |
1649 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_6, -8), | |
1650 | BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, 0, 3), | |
1651 | BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), | |
1652 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -16), | |
1653 | BPF_STX_MEM(BPF_DW, BPF_REG_6, BPF_REG_2, 0), | |
1654 | BPF_JMP_IMM(BPF_JNE, BPF_REG_1, 0, 1), | |
1655 | BPF_STX_MEM(BPF_DW, BPF_REG_6, BPF_REG_1, 0), | |
1656 | BPF_LDX_MEM(BPF_DW, BPF_REG_1, BPF_REG_6, 0), | |
1657 | BPF_STX_MEM(BPF_W, BPF_REG_1, BPF_REG_3, | |
1658 | offsetof(struct __sk_buff, mark)), | |
1659 | BPF_MOV64_IMM(BPF_REG_0, 0), | |
1660 | BPF_EXIT_INSN(), | |
1661 | }, | |
1662 | .result = REJECT, | |
1663 | .errstr = "same insn cannot be used with different pointers", | |
1664 | .prog_type = BPF_PROG_TYPE_SCHED_CLS, | |
1665 | }, | |
1666 | { | |
1667 | "unpriv: spill/fill of different pointers ldx", | |
1668 | .insns = { | |
1669 | BPF_ALU64_REG(BPF_MOV, BPF_REG_6, BPF_REG_10), | |
1670 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_6, -8), | |
1671 | BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, 0, 3), | |
1672 | BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), | |
1673 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, | |
1674 | -(__s32)offsetof(struct bpf_perf_event_data, | |
1675 | sample_period) - 8), | |
1676 | BPF_STX_MEM(BPF_DW, BPF_REG_6, BPF_REG_2, 0), | |
1677 | BPF_JMP_IMM(BPF_JNE, BPF_REG_1, 0, 1), | |
1678 | BPF_STX_MEM(BPF_DW, BPF_REG_6, BPF_REG_1, 0), | |
1679 | BPF_LDX_MEM(BPF_DW, BPF_REG_1, BPF_REG_6, 0), | |
1680 | BPF_LDX_MEM(BPF_DW, BPF_REG_1, BPF_REG_1, | |
1681 | offsetof(struct bpf_perf_event_data, | |
1682 | sample_period)), | |
1683 | BPF_MOV64_IMM(BPF_REG_0, 0), | |
1684 | BPF_EXIT_INSN(), | |
1685 | }, | |
1686 | .result = REJECT, | |
1687 | .errstr = "same insn cannot be used with different pointers", | |
1688 | .prog_type = BPF_PROG_TYPE_PERF_EVENT, | |
1689 | }, | |
1690 | { | |
1691 | "unpriv: write pointer into map elem value", | |
1692 | .insns = { | |
1693 | BPF_ST_MEM(BPF_DW, BPF_REG_10, -8, 0), | |
1694 | BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), | |
1695 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8), | |
1696 | BPF_LD_MAP_FD(BPF_REG_1, 0), | |
1697 | BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, | |
1698 | BPF_FUNC_map_lookup_elem), | |
1699 | BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 1), | |
1700 | BPF_STX_MEM(BPF_DW, BPF_REG_0, BPF_REG_0, 0), | |
1701 | BPF_EXIT_INSN(), | |
1702 | }, | |
1703 | .fixup_map1 = { 3 }, | |
1704 | .errstr_unpriv = "R0 leaks addr", | |
1705 | .result_unpriv = REJECT, | |
1706 | .result = ACCEPT, | |
1707 | }, | |
1708 | { | |
1709 | "unpriv: partial copy of pointer", | |
1710 | .insns = { | |
1711 | BPF_MOV32_REG(BPF_REG_1, BPF_REG_10), | |
1712 | BPF_MOV64_IMM(BPF_REG_0, 0), | |
1713 | BPF_EXIT_INSN(), | |
1714 | }, | |
1715 | .errstr_unpriv = "R10 partial copy", | |
1716 | .result_unpriv = REJECT, | |
1717 | .result = ACCEPT, | |
1718 | }, | |
1719 | { | |
1720 | "unpriv: pass pointer to tail_call", | |
1721 | .insns = { | |
1722 | BPF_MOV64_REG(BPF_REG_3, BPF_REG_1), | |
1723 | BPF_LD_MAP_FD(BPF_REG_2, 0), | |
1724 | BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, | |
1725 | BPF_FUNC_tail_call), | |
1726 | BPF_MOV64_IMM(BPF_REG_0, 0), | |
1727 | BPF_EXIT_INSN(), | |
1728 | }, | |
1729 | .fixup_prog = { 1 }, | |
1730 | .errstr_unpriv = "R3 leaks addr into helper", | |
1731 | .result_unpriv = REJECT, | |
1732 | .result = ACCEPT, | |
1733 | }, | |
1734 | { | |
1735 | "unpriv: cmp map pointer with zero", | |
1736 | .insns = { | |
1737 | BPF_MOV64_IMM(BPF_REG_1, 0), | |
1738 | BPF_LD_MAP_FD(BPF_REG_1, 0), | |
1739 | BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, 0, 0), | |
1740 | BPF_MOV64_IMM(BPF_REG_0, 0), | |
1741 | BPF_EXIT_INSN(), | |
1742 | }, | |
1743 | .fixup_map1 = { 1 }, | |
1744 | .errstr_unpriv = "R1 pointer comparison", | |
1745 | .result_unpriv = REJECT, | |
1746 | .result = ACCEPT, | |
1747 | }, | |
1748 | { | |
1749 | "unpriv: write into frame pointer", | |
1750 | .insns = { | |
1751 | BPF_MOV64_REG(BPF_REG_10, BPF_REG_1), | |
1752 | BPF_MOV64_IMM(BPF_REG_0, 0), | |
1753 | BPF_EXIT_INSN(), | |
1754 | }, | |
1755 | .errstr = "frame pointer is read only", | |
1756 | .result = REJECT, | |
1757 | }, | |
1758 | { | |
1759 | "unpriv: spill/fill frame pointer", | |
1760 | .insns = { | |
1761 | BPF_ALU64_REG(BPF_MOV, BPF_REG_6, BPF_REG_10), | |
1762 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_6, -8), | |
1763 | BPF_STX_MEM(BPF_DW, BPF_REG_6, BPF_REG_10, 0), | |
1764 | BPF_LDX_MEM(BPF_DW, BPF_REG_10, BPF_REG_6, 0), | |
1765 | BPF_MOV64_IMM(BPF_REG_0, 0), | |
1766 | BPF_EXIT_INSN(), | |
1767 | }, | |
1768 | .errstr = "frame pointer is read only", | |
1769 | .result = REJECT, | |
1770 | }, | |
1771 | { | |
1772 | "unpriv: cmp of frame pointer", | |
1773 | .insns = { | |
1774 | BPF_JMP_IMM(BPF_JEQ, BPF_REG_10, 0, 0), | |
1775 | BPF_MOV64_IMM(BPF_REG_0, 0), | |
1776 | BPF_EXIT_INSN(), | |
1777 | }, | |
1778 | .errstr_unpriv = "R10 pointer comparison", | |
1779 | .result_unpriv = REJECT, | |
1780 | .result = ACCEPT, | |
1781 | }, | |
1782 | { | |
1783 | "unpriv: cmp of stack pointer", | |
1784 | .insns = { | |
1785 | BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), | |
1786 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8), | |
1787 | BPF_JMP_IMM(BPF_JEQ, BPF_REG_2, 0, 0), | |
1788 | BPF_MOV64_IMM(BPF_REG_0, 0), | |
1789 | BPF_EXIT_INSN(), | |
1790 | }, | |
1791 | .errstr_unpriv = "R2 pointer comparison", | |
1792 | .result_unpriv = REJECT, | |
1793 | .result = ACCEPT, | |
1794 | }, | |
1795 | { | |
1796 | "unpriv: obfuscate stack pointer", | |
1797 | .insns = { | |
1798 | BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), | |
1799 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8), | |
1800 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8), | |
1801 | BPF_MOV64_IMM(BPF_REG_0, 0), | |
1802 | BPF_EXIT_INSN(), | |
1803 | }, | |
1804 | .errstr_unpriv = "R2 pointer arithmetic", | |
1805 | .result_unpriv = REJECT, | |
1806 | .result = ACCEPT, | |
1807 | }, | |
1808 | { | |
1809 | "raw_stack: no skb_load_bytes", | |
1810 | .insns = { | |
1811 | BPF_MOV64_IMM(BPF_REG_2, 4), | |
1812 | BPF_ALU64_REG(BPF_MOV, BPF_REG_6, BPF_REG_10), | |
1813 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_6, -8), | |
1814 | BPF_MOV64_REG(BPF_REG_3, BPF_REG_6), | |
1815 | BPF_MOV64_IMM(BPF_REG_4, 8), | |
1816 | /* Call to skb_load_bytes() omitted. */ | |
1817 | BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_6, 0), | |
1818 | BPF_EXIT_INSN(), | |
1819 | }, | |
1820 | .result = REJECT, | |
1821 | .errstr = "invalid read from stack off -8+0 size 8", | |
1822 | .prog_type = BPF_PROG_TYPE_SCHED_CLS, | |
1823 | }, | |
1824 | { | |
1825 | "raw_stack: skb_load_bytes, negative len", | |
1826 | .insns = { | |
1827 | BPF_MOV64_IMM(BPF_REG_2, 4), | |
1828 | BPF_ALU64_REG(BPF_MOV, BPF_REG_6, BPF_REG_10), | |
1829 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_6, -8), | |
1830 | BPF_MOV64_REG(BPF_REG_3, BPF_REG_6), | |
1831 | BPF_MOV64_IMM(BPF_REG_4, -8), | |
1832 | BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, | |
1833 | BPF_FUNC_skb_load_bytes), | |
1834 | BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_6, 0), | |
1835 | BPF_EXIT_INSN(), | |
1836 | }, | |
1837 | .result = REJECT, | |
1838 | .errstr = "invalid stack type R3", | |
1839 | .prog_type = BPF_PROG_TYPE_SCHED_CLS, | |
1840 | }, | |
1841 | { | |
1842 | "raw_stack: skb_load_bytes, negative len 2", | |
1843 | .insns = { | |
1844 | BPF_MOV64_IMM(BPF_REG_2, 4), | |
1845 | BPF_ALU64_REG(BPF_MOV, BPF_REG_6, BPF_REG_10), | |
1846 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_6, -8), | |
1847 | BPF_MOV64_REG(BPF_REG_3, BPF_REG_6), | |
1848 | BPF_MOV64_IMM(BPF_REG_4, ~0), | |
1849 | BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, | |
1850 | BPF_FUNC_skb_load_bytes), | |
1851 | BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_6, 0), | |
1852 | BPF_EXIT_INSN(), | |
1853 | }, | |
1854 | .result = REJECT, | |
1855 | .errstr = "invalid stack type R3", | |
1856 | .prog_type = BPF_PROG_TYPE_SCHED_CLS, | |
1857 | }, | |
1858 | { | |
1859 | "raw_stack: skb_load_bytes, zero len", | |
1860 | .insns = { | |
1861 | BPF_MOV64_IMM(BPF_REG_2, 4), | |
1862 | BPF_ALU64_REG(BPF_MOV, BPF_REG_6, BPF_REG_10), | |
1863 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_6, -8), | |
1864 | BPF_MOV64_REG(BPF_REG_3, BPF_REG_6), | |
1865 | BPF_MOV64_IMM(BPF_REG_4, 0), | |
1866 | BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, | |
1867 | BPF_FUNC_skb_load_bytes), | |
1868 | BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_6, 0), | |
1869 | BPF_EXIT_INSN(), | |
1870 | }, | |
1871 | .result = REJECT, | |
1872 | .errstr = "invalid stack type R3", | |
1873 | .prog_type = BPF_PROG_TYPE_SCHED_CLS, | |
1874 | }, | |
1875 | { | |
1876 | "raw_stack: skb_load_bytes, no init", | |
1877 | .insns = { | |
1878 | BPF_MOV64_IMM(BPF_REG_2, 4), | |
1879 | BPF_ALU64_REG(BPF_MOV, BPF_REG_6, BPF_REG_10), | |
1880 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_6, -8), | |
1881 | BPF_MOV64_REG(BPF_REG_3, BPF_REG_6), | |
1882 | BPF_MOV64_IMM(BPF_REG_4, 8), | |
1883 | BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, | |
1884 | BPF_FUNC_skb_load_bytes), | |
1885 | BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_6, 0), | |
1886 | BPF_EXIT_INSN(), | |
1887 | }, | |
1888 | .result = ACCEPT, | |
1889 | .prog_type = BPF_PROG_TYPE_SCHED_CLS, | |
1890 | }, | |
1891 | { | |
1892 | "raw_stack: skb_load_bytes, init", | |
1893 | .insns = { | |
1894 | BPF_MOV64_IMM(BPF_REG_2, 4), | |
1895 | BPF_ALU64_REG(BPF_MOV, BPF_REG_6, BPF_REG_10), | |
1896 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_6, -8), | |
1897 | BPF_ST_MEM(BPF_DW, BPF_REG_6, 0, 0xcafe), | |
1898 | BPF_MOV64_REG(BPF_REG_3, BPF_REG_6), | |
1899 | BPF_MOV64_IMM(BPF_REG_4, 8), | |
1900 | BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, | |
1901 | BPF_FUNC_skb_load_bytes), | |
1902 | BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_6, 0), | |
1903 | BPF_EXIT_INSN(), | |
1904 | }, | |
1905 | .result = ACCEPT, | |
1906 | .prog_type = BPF_PROG_TYPE_SCHED_CLS, | |
1907 | }, | |
1908 | { | |
1909 | "raw_stack: skb_load_bytes, spilled regs around bounds", | |
1910 | .insns = { | |
1911 | BPF_MOV64_IMM(BPF_REG_2, 4), | |
1912 | BPF_ALU64_REG(BPF_MOV, BPF_REG_6, BPF_REG_10), | |
1913 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_6, -16), | |
1914 | BPF_STX_MEM(BPF_DW, BPF_REG_6, BPF_REG_1, -8), | |
1915 | BPF_STX_MEM(BPF_DW, BPF_REG_6, BPF_REG_1, 8), | |
1916 | BPF_MOV64_REG(BPF_REG_3, BPF_REG_6), | |
1917 | BPF_MOV64_IMM(BPF_REG_4, 8), | |
1918 | BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, | |
1919 | BPF_FUNC_skb_load_bytes), | |
1920 | BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_6, -8), | |
1921 | BPF_LDX_MEM(BPF_DW, BPF_REG_2, BPF_REG_6, 8), | |
1922 | BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_0, | |
1923 | offsetof(struct __sk_buff, mark)), | |
1924 | BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_2, | |
1925 | offsetof(struct __sk_buff, priority)), | |
1926 | BPF_ALU64_REG(BPF_ADD, BPF_REG_0, BPF_REG_2), | |
1927 | BPF_EXIT_INSN(), | |
1928 | }, | |
1929 | .result = ACCEPT, | |
1930 | .prog_type = BPF_PROG_TYPE_SCHED_CLS, | |
1931 | }, | |
1932 | { | |
1933 | "raw_stack: skb_load_bytes, spilled regs corruption", | |
1934 | .insns = { | |
1935 | BPF_MOV64_IMM(BPF_REG_2, 4), | |
1936 | BPF_ALU64_REG(BPF_MOV, BPF_REG_6, BPF_REG_10), | |
1937 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_6, -8), | |
1938 | BPF_STX_MEM(BPF_DW, BPF_REG_6, BPF_REG_1, 0), | |
1939 | BPF_MOV64_REG(BPF_REG_3, BPF_REG_6), | |
1940 | BPF_MOV64_IMM(BPF_REG_4, 8), | |
1941 | BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, | |
1942 | BPF_FUNC_skb_load_bytes), | |
1943 | BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_6, 0), | |
1944 | BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_0, | |
1945 | offsetof(struct __sk_buff, mark)), | |
1946 | BPF_EXIT_INSN(), | |
1947 | }, | |
1948 | .result = REJECT, | |
1949 | .errstr = "R0 invalid mem access 'inv'", | |
1950 | .prog_type = BPF_PROG_TYPE_SCHED_CLS, | |
1951 | }, | |
1952 | { | |
1953 | "raw_stack: skb_load_bytes, spilled regs corruption 2", | |
1954 | .insns = { | |
1955 | BPF_MOV64_IMM(BPF_REG_2, 4), | |
1956 | BPF_ALU64_REG(BPF_MOV, BPF_REG_6, BPF_REG_10), | |
1957 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_6, -16), | |
1958 | BPF_STX_MEM(BPF_DW, BPF_REG_6, BPF_REG_1, -8), | |
1959 | BPF_STX_MEM(BPF_DW, BPF_REG_6, BPF_REG_1, 0), | |
1960 | BPF_STX_MEM(BPF_DW, BPF_REG_6, BPF_REG_1, 8), | |
1961 | BPF_MOV64_REG(BPF_REG_3, BPF_REG_6), | |
1962 | BPF_MOV64_IMM(BPF_REG_4, 8), | |
1963 | BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, | |
1964 | BPF_FUNC_skb_load_bytes), | |
1965 | BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_6, -8), | |
1966 | BPF_LDX_MEM(BPF_DW, BPF_REG_2, BPF_REG_6, 8), | |
1967 | BPF_LDX_MEM(BPF_DW, BPF_REG_3, BPF_REG_6, 0), | |
1968 | BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_0, | |
1969 | offsetof(struct __sk_buff, mark)), | |
1970 | BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_2, | |
1971 | offsetof(struct __sk_buff, priority)), | |
1972 | BPF_ALU64_REG(BPF_ADD, BPF_REG_0, BPF_REG_2), | |
1973 | BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_3, | |
1974 | offsetof(struct __sk_buff, pkt_type)), | |
1975 | BPF_ALU64_REG(BPF_ADD, BPF_REG_0, BPF_REG_3), | |
1976 | BPF_EXIT_INSN(), | |
1977 | }, | |
1978 | .result = REJECT, | |
1979 | .errstr = "R3 invalid mem access 'inv'", | |
1980 | .prog_type = BPF_PROG_TYPE_SCHED_CLS, | |
1981 | }, | |
1982 | { | |
1983 | "raw_stack: skb_load_bytes, spilled regs + data", | |
1984 | .insns = { | |
1985 | BPF_MOV64_IMM(BPF_REG_2, 4), | |
1986 | BPF_ALU64_REG(BPF_MOV, BPF_REG_6, BPF_REG_10), | |
1987 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_6, -16), | |
1988 | BPF_STX_MEM(BPF_DW, BPF_REG_6, BPF_REG_1, -8), | |
1989 | BPF_STX_MEM(BPF_DW, BPF_REG_6, BPF_REG_1, 0), | |
1990 | BPF_STX_MEM(BPF_DW, BPF_REG_6, BPF_REG_1, 8), | |
1991 | BPF_MOV64_REG(BPF_REG_3, BPF_REG_6), | |
1992 | BPF_MOV64_IMM(BPF_REG_4, 8), | |
1993 | BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, | |
1994 | BPF_FUNC_skb_load_bytes), | |
1995 | BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_6, -8), | |
1996 | BPF_LDX_MEM(BPF_DW, BPF_REG_2, BPF_REG_6, 8), | |
1997 | BPF_LDX_MEM(BPF_DW, BPF_REG_3, BPF_REG_6, 0), | |
1998 | BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_0, | |
1999 | offsetof(struct __sk_buff, mark)), | |
2000 | BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_2, | |
2001 | offsetof(struct __sk_buff, priority)), | |
2002 | BPF_ALU64_REG(BPF_ADD, BPF_REG_0, BPF_REG_2), | |
2003 | BPF_ALU64_REG(BPF_ADD, BPF_REG_0, BPF_REG_3), | |
2004 | BPF_EXIT_INSN(), | |
2005 | }, | |
2006 | .result = ACCEPT, | |
2007 | .prog_type = BPF_PROG_TYPE_SCHED_CLS, | |
2008 | }, | |
2009 | { | |
2010 | "raw_stack: skb_load_bytes, invalid access 1", | |
2011 | .insns = { | |
2012 | BPF_MOV64_IMM(BPF_REG_2, 4), | |
2013 | BPF_ALU64_REG(BPF_MOV, BPF_REG_6, BPF_REG_10), | |
2014 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_6, -513), | |
2015 | BPF_MOV64_REG(BPF_REG_3, BPF_REG_6), | |
2016 | BPF_MOV64_IMM(BPF_REG_4, 8), | |
2017 | BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, | |
2018 | BPF_FUNC_skb_load_bytes), | |
2019 | BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_6, 0), | |
2020 | BPF_EXIT_INSN(), | |
2021 | }, | |
2022 | .result = REJECT, | |
2023 | .errstr = "invalid stack type R3 off=-513 access_size=8", | |
2024 | .prog_type = BPF_PROG_TYPE_SCHED_CLS, | |
2025 | }, | |
2026 | { | |
2027 | "raw_stack: skb_load_bytes, invalid access 2", | |
2028 | .insns = { | |
2029 | BPF_MOV64_IMM(BPF_REG_2, 4), | |
2030 | BPF_ALU64_REG(BPF_MOV, BPF_REG_6, BPF_REG_10), | |
2031 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_6, -1), | |
2032 | BPF_MOV64_REG(BPF_REG_3, BPF_REG_6), | |
2033 | BPF_MOV64_IMM(BPF_REG_4, 8), | |
2034 | BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, | |
2035 | BPF_FUNC_skb_load_bytes), | |
2036 | BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_6, 0), | |
2037 | BPF_EXIT_INSN(), | |
2038 | }, | |
2039 | .result = REJECT, | |
2040 | .errstr = "invalid stack type R3 off=-1 access_size=8", | |
2041 | .prog_type = BPF_PROG_TYPE_SCHED_CLS, | |
2042 | }, | |
2043 | { | |
2044 | "raw_stack: skb_load_bytes, invalid access 3", | |
2045 | .insns = { | |
2046 | BPF_MOV64_IMM(BPF_REG_2, 4), | |
2047 | BPF_ALU64_REG(BPF_MOV, BPF_REG_6, BPF_REG_10), | |
2048 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_6, 0xffffffff), | |
2049 | BPF_MOV64_REG(BPF_REG_3, BPF_REG_6), | |
2050 | BPF_MOV64_IMM(BPF_REG_4, 0xffffffff), | |
2051 | BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, | |
2052 | BPF_FUNC_skb_load_bytes), | |
2053 | BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_6, 0), | |
2054 | BPF_EXIT_INSN(), | |
2055 | }, | |
2056 | .result = REJECT, | |
2057 | .errstr = "invalid stack type R3 off=-1 access_size=-1", | |
2058 | .prog_type = BPF_PROG_TYPE_SCHED_CLS, | |
2059 | }, | |
2060 | { | |
2061 | "raw_stack: skb_load_bytes, invalid access 4", | |
2062 | .insns = { | |
2063 | BPF_MOV64_IMM(BPF_REG_2, 4), | |
2064 | BPF_ALU64_REG(BPF_MOV, BPF_REG_6, BPF_REG_10), | |
2065 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_6, -1), | |
2066 | BPF_MOV64_REG(BPF_REG_3, BPF_REG_6), | |
2067 | BPF_MOV64_IMM(BPF_REG_4, 0x7fffffff), | |
2068 | BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, | |
2069 | BPF_FUNC_skb_load_bytes), | |
2070 | BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_6, 0), | |
2071 | BPF_EXIT_INSN(), | |
2072 | }, | |
2073 | .result = REJECT, | |
2074 | .errstr = "invalid stack type R3 off=-1 access_size=2147483647", | |
2075 | .prog_type = BPF_PROG_TYPE_SCHED_CLS, | |
2076 | }, | |
2077 | { | |
2078 | "raw_stack: skb_load_bytes, invalid access 5", | |
2079 | .insns = { | |
2080 | BPF_MOV64_IMM(BPF_REG_2, 4), | |
2081 | BPF_ALU64_REG(BPF_MOV, BPF_REG_6, BPF_REG_10), | |
2082 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_6, -512), | |
2083 | BPF_MOV64_REG(BPF_REG_3, BPF_REG_6), | |
2084 | BPF_MOV64_IMM(BPF_REG_4, 0x7fffffff), | |
2085 | BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, | |
2086 | BPF_FUNC_skb_load_bytes), | |
2087 | BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_6, 0), | |
2088 | BPF_EXIT_INSN(), | |
2089 | }, | |
2090 | .result = REJECT, | |
2091 | .errstr = "invalid stack type R3 off=-512 access_size=2147483647", | |
2092 | .prog_type = BPF_PROG_TYPE_SCHED_CLS, | |
2093 | }, | |
2094 | { | |
2095 | "raw_stack: skb_load_bytes, invalid access 6", | |
2096 | .insns = { | |
2097 | BPF_MOV64_IMM(BPF_REG_2, 4), | |
2098 | BPF_ALU64_REG(BPF_MOV, BPF_REG_6, BPF_REG_10), | |
2099 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_6, -512), | |
2100 | BPF_MOV64_REG(BPF_REG_3, BPF_REG_6), | |
2101 | BPF_MOV64_IMM(BPF_REG_4, 0), | |
2102 | BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, | |
2103 | BPF_FUNC_skb_load_bytes), | |
2104 | BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_6, 0), | |
2105 | BPF_EXIT_INSN(), | |
2106 | }, | |
2107 | .result = REJECT, | |
2108 | .errstr = "invalid stack type R3 off=-512 access_size=0", | |
2109 | .prog_type = BPF_PROG_TYPE_SCHED_CLS, | |
2110 | }, | |
2111 | { | |
2112 | "raw_stack: skb_load_bytes, large access", | |
2113 | .insns = { | |
2114 | BPF_MOV64_IMM(BPF_REG_2, 4), | |
2115 | BPF_ALU64_REG(BPF_MOV, BPF_REG_6, BPF_REG_10), | |
2116 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_6, -512), | |
2117 | BPF_MOV64_REG(BPF_REG_3, BPF_REG_6), | |
2118 | BPF_MOV64_IMM(BPF_REG_4, 512), | |
2119 | BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, | |
2120 | BPF_FUNC_skb_load_bytes), | |
2121 | BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_6, 0), | |
2122 | BPF_EXIT_INSN(), | |
2123 | }, | |
2124 | .result = ACCEPT, | |
2125 | .prog_type = BPF_PROG_TYPE_SCHED_CLS, | |
2126 | }, | |
2127 | { | |
2128 | "direct packet access: test1", | |
2129 | .insns = { | |
2130 | BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1, | |
2131 | offsetof(struct __sk_buff, data)), | |
2132 | BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1, | |
2133 | offsetof(struct __sk_buff, data_end)), | |
2134 | BPF_MOV64_REG(BPF_REG_0, BPF_REG_2), | |
2135 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_0, 8), | |
2136 | BPF_JMP_REG(BPF_JGT, BPF_REG_0, BPF_REG_3, 1), | |
2137 | BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_2, 0), | |
2138 | BPF_MOV64_IMM(BPF_REG_0, 0), | |
2139 | BPF_EXIT_INSN(), | |
2140 | }, | |
2141 | .result = ACCEPT, | |
2142 | .prog_type = BPF_PROG_TYPE_SCHED_CLS, | |
2143 | }, | |
2144 | { | |
2145 | "direct packet access: test2", | |
2146 | .insns = { | |
2147 | BPF_MOV64_IMM(BPF_REG_0, 1), | |
2148 | BPF_LDX_MEM(BPF_W, BPF_REG_4, BPF_REG_1, | |
2149 | offsetof(struct __sk_buff, data_end)), | |
2150 | BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1, | |
2151 | offsetof(struct __sk_buff, data)), | |
2152 | BPF_MOV64_REG(BPF_REG_5, BPF_REG_3), | |
2153 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_5, 14), | |
2154 | BPF_JMP_REG(BPF_JGT, BPF_REG_5, BPF_REG_4, 15), | |
2155 | BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_3, 7), | |
2156 | BPF_LDX_MEM(BPF_B, BPF_REG_4, BPF_REG_3, 12), | |
2157 | BPF_ALU64_IMM(BPF_MUL, BPF_REG_4, 14), | |
2158 | BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1, | |
2159 | offsetof(struct __sk_buff, data)), | |
2160 | BPF_ALU64_REG(BPF_ADD, BPF_REG_3, BPF_REG_4), | |
2161 | BPF_MOV64_REG(BPF_REG_2, BPF_REG_1), | |
2162 | BPF_ALU64_IMM(BPF_LSH, BPF_REG_2, 48), | |
2163 | BPF_ALU64_IMM(BPF_RSH, BPF_REG_2, 48), | |
2164 | BPF_ALU64_REG(BPF_ADD, BPF_REG_3, BPF_REG_2), | |
2165 | BPF_MOV64_REG(BPF_REG_2, BPF_REG_3), | |
2166 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, 8), | |
2167 | BPF_LDX_MEM(BPF_W, BPF_REG_1, BPF_REG_1, | |
2168 | offsetof(struct __sk_buff, data_end)), | |
2169 | BPF_JMP_REG(BPF_JGT, BPF_REG_2, BPF_REG_1, 1), | |
2170 | BPF_LDX_MEM(BPF_B, BPF_REG_1, BPF_REG_3, 4), | |
2171 | BPF_MOV64_IMM(BPF_REG_0, 0), | |
2172 | BPF_EXIT_INSN(), | |
2173 | }, | |
2174 | .result = ACCEPT, | |
2175 | .prog_type = BPF_PROG_TYPE_SCHED_CLS, | |
2176 | }, | |
2177 | { | |
2178 | "direct packet access: test3", | |
2179 | .insns = { | |
2180 | BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1, | |
2181 | offsetof(struct __sk_buff, data)), | |
2182 | BPF_MOV64_IMM(BPF_REG_0, 0), | |
2183 | BPF_EXIT_INSN(), | |
2184 | }, | |
2185 | .errstr = "invalid bpf_context access off=76", | |
2186 | .result = REJECT, | |
2187 | .prog_type = BPF_PROG_TYPE_SOCKET_FILTER, | |
2188 | }, | |
2189 | { | |
2190 | "direct packet access: test4 (write)", | |
2191 | .insns = { | |
2192 | BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1, | |
2193 | offsetof(struct __sk_buff, data)), | |
2194 | BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1, | |
2195 | offsetof(struct __sk_buff, data_end)), | |
2196 | BPF_MOV64_REG(BPF_REG_0, BPF_REG_2), | |
2197 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_0, 8), | |
2198 | BPF_JMP_REG(BPF_JGT, BPF_REG_0, BPF_REG_3, 1), | |
2199 | BPF_STX_MEM(BPF_B, BPF_REG_2, BPF_REG_2, 0), | |
2200 | BPF_MOV64_IMM(BPF_REG_0, 0), | |
2201 | BPF_EXIT_INSN(), | |
2202 | }, | |
2203 | .result = ACCEPT, | |
2204 | .prog_type = BPF_PROG_TYPE_SCHED_CLS, | |
2205 | }, | |
2206 | { | |
2207 | "direct packet access: test5 (pkt_end >= reg, good access)", | |
2208 | .insns = { | |
2209 | BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1, | |
2210 | offsetof(struct __sk_buff, data)), | |
2211 | BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1, | |
2212 | offsetof(struct __sk_buff, data_end)), | |
2213 | BPF_MOV64_REG(BPF_REG_0, BPF_REG_2), | |
2214 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_0, 8), | |
2215 | BPF_JMP_REG(BPF_JGE, BPF_REG_3, BPF_REG_0, 2), | |
2216 | BPF_MOV64_IMM(BPF_REG_0, 1), | |
2217 | BPF_EXIT_INSN(), | |
2218 | BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_2, 0), | |
2219 | BPF_MOV64_IMM(BPF_REG_0, 0), | |
2220 | BPF_EXIT_INSN(), | |
2221 | }, | |
2222 | .result = ACCEPT, | |
2223 | .prog_type = BPF_PROG_TYPE_SCHED_CLS, | |
2224 | }, | |
2225 | { | |
2226 | "direct packet access: test6 (pkt_end >= reg, bad access)", | |
2227 | .insns = { | |
2228 | BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1, | |
2229 | offsetof(struct __sk_buff, data)), | |
2230 | BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1, | |
2231 | offsetof(struct __sk_buff, data_end)), | |
2232 | BPF_MOV64_REG(BPF_REG_0, BPF_REG_2), | |
2233 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_0, 8), | |
2234 | BPF_JMP_REG(BPF_JGE, BPF_REG_3, BPF_REG_0, 3), | |
2235 | BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_2, 0), | |
2236 | BPF_MOV64_IMM(BPF_REG_0, 1), | |
2237 | BPF_EXIT_INSN(), | |
2238 | BPF_MOV64_IMM(BPF_REG_0, 0), | |
2239 | BPF_EXIT_INSN(), | |
2240 | }, | |
2241 | .errstr = "invalid access to packet", | |
2242 | .result = REJECT, | |
2243 | .prog_type = BPF_PROG_TYPE_SCHED_CLS, | |
2244 | }, | |
2245 | { | |
2246 | "direct packet access: test7 (pkt_end >= reg, both accesses)", | |
2247 | .insns = { | |
2248 | BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1, | |
2249 | offsetof(struct __sk_buff, data)), | |
2250 | BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1, | |
2251 | offsetof(struct __sk_buff, data_end)), | |
2252 | BPF_MOV64_REG(BPF_REG_0, BPF_REG_2), | |
2253 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_0, 8), | |
2254 | BPF_JMP_REG(BPF_JGE, BPF_REG_3, BPF_REG_0, 3), | |
2255 | BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_2, 0), | |
2256 | BPF_MOV64_IMM(BPF_REG_0, 1), | |
2257 | BPF_EXIT_INSN(), | |
2258 | BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_2, 0), | |
2259 | BPF_MOV64_IMM(BPF_REG_0, 0), | |
2260 | BPF_EXIT_INSN(), | |
2261 | }, | |
2262 | .errstr = "invalid access to packet", | |
2263 | .result = REJECT, | |
2264 | .prog_type = BPF_PROG_TYPE_SCHED_CLS, | |
2265 | }, | |
2266 | { | |
2267 | "direct packet access: test8 (double test, variant 1)", | |
2268 | .insns = { | |
2269 | BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1, | |
2270 | offsetof(struct __sk_buff, data)), | |
2271 | BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1, | |
2272 | offsetof(struct __sk_buff, data_end)), | |
2273 | BPF_MOV64_REG(BPF_REG_0, BPF_REG_2), | |
2274 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_0, 8), | |
2275 | BPF_JMP_REG(BPF_JGE, BPF_REG_3, BPF_REG_0, 4), | |
2276 | BPF_JMP_REG(BPF_JGT, BPF_REG_0, BPF_REG_3, 1), | |
2277 | BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_2, 0), | |
2278 | BPF_MOV64_IMM(BPF_REG_0, 1), | |
2279 | BPF_EXIT_INSN(), | |
2280 | BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_2, 0), | |
2281 | BPF_MOV64_IMM(BPF_REG_0, 0), | |
2282 | BPF_EXIT_INSN(), | |
2283 | }, | |
2284 | .result = ACCEPT, | |
2285 | .prog_type = BPF_PROG_TYPE_SCHED_CLS, | |
2286 | }, | |
2287 | { | |
2288 | "direct packet access: test9 (double test, variant 2)", | |
2289 | .insns = { | |
2290 | BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1, | |
2291 | offsetof(struct __sk_buff, data)), | |
2292 | BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1, | |
2293 | offsetof(struct __sk_buff, data_end)), | |
2294 | BPF_MOV64_REG(BPF_REG_0, BPF_REG_2), | |
2295 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_0, 8), | |
2296 | BPF_JMP_REG(BPF_JGE, BPF_REG_3, BPF_REG_0, 2), | |
2297 | BPF_MOV64_IMM(BPF_REG_0, 1), | |
2298 | BPF_EXIT_INSN(), | |
2299 | BPF_JMP_REG(BPF_JGT, BPF_REG_0, BPF_REG_3, 1), | |
2300 | BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_2, 0), | |
2301 | BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_2, 0), | |
2302 | BPF_MOV64_IMM(BPF_REG_0, 0), | |
2303 | BPF_EXIT_INSN(), | |
2304 | }, | |
2305 | .result = ACCEPT, | |
2306 | .prog_type = BPF_PROG_TYPE_SCHED_CLS, | |
2307 | }, | |
2308 | { | |
2309 | "direct packet access: test10 (write invalid)", | |
2310 | .insns = { | |
2311 | BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1, | |
2312 | offsetof(struct __sk_buff, data)), | |
2313 | BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1, | |
2314 | offsetof(struct __sk_buff, data_end)), | |
2315 | BPF_MOV64_REG(BPF_REG_0, BPF_REG_2), | |
2316 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_0, 8), | |
2317 | BPF_JMP_REG(BPF_JGT, BPF_REG_0, BPF_REG_3, 2), | |
2318 | BPF_MOV64_IMM(BPF_REG_0, 0), | |
2319 | BPF_EXIT_INSN(), | |
2320 | BPF_STX_MEM(BPF_B, BPF_REG_2, BPF_REG_2, 0), | |
2321 | BPF_MOV64_IMM(BPF_REG_0, 0), | |
2322 | BPF_EXIT_INSN(), | |
2323 | }, | |
2324 | .errstr = "invalid access to packet", | |
2325 | .result = REJECT, | |
2326 | .prog_type = BPF_PROG_TYPE_SCHED_CLS, | |
2327 | }, | |
2328 | { | |
2329 | "helper access to packet: test1, valid packet_ptr range", | |
2330 | .insns = { | |
2331 | BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1, | |
2332 | offsetof(struct xdp_md, data)), | |
2333 | BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1, | |
2334 | offsetof(struct xdp_md, data_end)), | |
2335 | BPF_MOV64_REG(BPF_REG_1, BPF_REG_2), | |
2336 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, 8), | |
2337 | BPF_JMP_REG(BPF_JGT, BPF_REG_1, BPF_REG_3, 5), | |
2338 | BPF_LD_MAP_FD(BPF_REG_1, 0), | |
2339 | BPF_MOV64_REG(BPF_REG_3, BPF_REG_2), | |
2340 | BPF_MOV64_IMM(BPF_REG_4, 0), | |
2341 | BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, | |
2342 | BPF_FUNC_map_update_elem), | |
2343 | BPF_MOV64_IMM(BPF_REG_0, 0), | |
2344 | BPF_EXIT_INSN(), | |
2345 | }, | |
2346 | .fixup_map1 = { 5 }, | |
2347 | .result_unpriv = ACCEPT, | |
2348 | .result = ACCEPT, | |
2349 | .prog_type = BPF_PROG_TYPE_XDP, | |
2350 | }, | |
2351 | { | |
2352 | "helper access to packet: test2, unchecked packet_ptr", | |
2353 | .insns = { | |
2354 | BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1, | |
2355 | offsetof(struct xdp_md, data)), | |
2356 | BPF_LD_MAP_FD(BPF_REG_1, 0), | |
2357 | BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, | |
2358 | BPF_FUNC_map_lookup_elem), | |
2359 | BPF_MOV64_IMM(BPF_REG_0, 0), | |
2360 | BPF_EXIT_INSN(), | |
2361 | }, | |
2362 | .fixup_map1 = { 1 }, | |
2363 | .result = REJECT, | |
2364 | .errstr = "invalid access to packet", | |
2365 | .prog_type = BPF_PROG_TYPE_XDP, | |
2366 | }, | |
2367 | { | |
2368 | "helper access to packet: test3, variable add", | |
2369 | .insns = { | |
2370 | BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1, | |
2371 | offsetof(struct xdp_md, data)), | |
2372 | BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1, | |
2373 | offsetof(struct xdp_md, data_end)), | |
2374 | BPF_MOV64_REG(BPF_REG_4, BPF_REG_2), | |
2375 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_4, 8), | |
2376 | BPF_JMP_REG(BPF_JGT, BPF_REG_4, BPF_REG_3, 10), | |
2377 | BPF_LDX_MEM(BPF_B, BPF_REG_5, BPF_REG_2, 0), | |
2378 | BPF_MOV64_REG(BPF_REG_4, BPF_REG_2), | |
2379 | BPF_ALU64_REG(BPF_ADD, BPF_REG_4, BPF_REG_5), | |
2380 | BPF_MOV64_REG(BPF_REG_5, BPF_REG_4), | |
2381 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_5, 8), | |
2382 | BPF_JMP_REG(BPF_JGT, BPF_REG_5, BPF_REG_3, 4), | |
2383 | BPF_LD_MAP_FD(BPF_REG_1, 0), | |
2384 | BPF_MOV64_REG(BPF_REG_2, BPF_REG_4), | |
2385 | BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, | |
2386 | BPF_FUNC_map_lookup_elem), | |
2387 | BPF_MOV64_IMM(BPF_REG_0, 0), | |
2388 | BPF_EXIT_INSN(), | |
2389 | }, | |
2390 | .fixup_map1 = { 11 }, | |
2391 | .result = ACCEPT, | |
2392 | .prog_type = BPF_PROG_TYPE_XDP, | |
2393 | }, | |
2394 | { | |
2395 | "helper access to packet: test4, packet_ptr with bad range", | |
2396 | .insns = { | |
2397 | BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1, | |
2398 | offsetof(struct xdp_md, data)), | |
2399 | BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1, | |
2400 | offsetof(struct xdp_md, data_end)), | |
2401 | BPF_MOV64_REG(BPF_REG_4, BPF_REG_2), | |
2402 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_4, 4), | |
2403 | BPF_JMP_REG(BPF_JGT, BPF_REG_4, BPF_REG_3, 2), | |
2404 | BPF_MOV64_IMM(BPF_REG_0, 0), | |
2405 | BPF_EXIT_INSN(), | |
2406 | BPF_LD_MAP_FD(BPF_REG_1, 0), | |
2407 | BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, | |
2408 | BPF_FUNC_map_lookup_elem), | |
2409 | BPF_MOV64_IMM(BPF_REG_0, 0), | |
2410 | BPF_EXIT_INSN(), | |
2411 | }, | |
2412 | .fixup_map1 = { 7 }, | |
2413 | .result = REJECT, | |
2414 | .errstr = "invalid access to packet", | |
2415 | .prog_type = BPF_PROG_TYPE_XDP, | |
2416 | }, | |
2417 | { | |
2418 | "helper access to packet: test5, packet_ptr with too short range", | |
2419 | .insns = { | |
2420 | BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1, | |
2421 | offsetof(struct xdp_md, data)), | |
2422 | BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1, | |
2423 | offsetof(struct xdp_md, data_end)), | |
2424 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, 1), | |
2425 | BPF_MOV64_REG(BPF_REG_4, BPF_REG_2), | |
2426 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_4, 7), | |
2427 | BPF_JMP_REG(BPF_JGT, BPF_REG_4, BPF_REG_3, 3), | |
2428 | BPF_LD_MAP_FD(BPF_REG_1, 0), | |
2429 | BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, | |
2430 | BPF_FUNC_map_lookup_elem), | |
2431 | BPF_MOV64_IMM(BPF_REG_0, 0), | |
2432 | BPF_EXIT_INSN(), | |
2433 | }, | |
2434 | .fixup_map1 = { 6 }, | |
2435 | .result = REJECT, | |
2436 | .errstr = "invalid access to packet", | |
2437 | .prog_type = BPF_PROG_TYPE_XDP, | |
2438 | }, | |
2439 | { | |
2440 | "helper access to packet: test6, cls valid packet_ptr range", | |
2441 | .insns = { | |
2442 | BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1, | |
2443 | offsetof(struct __sk_buff, data)), | |
2444 | BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1, | |
2445 | offsetof(struct __sk_buff, data_end)), | |
2446 | BPF_MOV64_REG(BPF_REG_1, BPF_REG_2), | |
2447 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, 8), | |
2448 | BPF_JMP_REG(BPF_JGT, BPF_REG_1, BPF_REG_3, 5), | |
2449 | BPF_LD_MAP_FD(BPF_REG_1, 0), | |
2450 | BPF_MOV64_REG(BPF_REG_3, BPF_REG_2), | |
2451 | BPF_MOV64_IMM(BPF_REG_4, 0), | |
2452 | BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, | |
2453 | BPF_FUNC_map_update_elem), | |
2454 | BPF_MOV64_IMM(BPF_REG_0, 0), | |
2455 | BPF_EXIT_INSN(), | |
2456 | }, | |
2457 | .fixup_map1 = { 5 }, | |
2458 | .result = ACCEPT, | |
2459 | .prog_type = BPF_PROG_TYPE_SCHED_CLS, | |
2460 | }, | |
2461 | { | |
2462 | "helper access to packet: test7, cls unchecked packet_ptr", | |
2463 | .insns = { | |
2464 | BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1, | |
2465 | offsetof(struct __sk_buff, data)), | |
2466 | BPF_LD_MAP_FD(BPF_REG_1, 0), | |
2467 | BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, | |
2468 | BPF_FUNC_map_lookup_elem), | |
2469 | BPF_MOV64_IMM(BPF_REG_0, 0), | |
2470 | BPF_EXIT_INSN(), | |
2471 | }, | |
2472 | .fixup_map1 = { 1 }, | |
2473 | .result = REJECT, | |
2474 | .errstr = "invalid access to packet", | |
2475 | .prog_type = BPF_PROG_TYPE_SCHED_CLS, | |
2476 | }, | |
2477 | { | |
2478 | "helper access to packet: test8, cls variable add", | |
2479 | .insns = { | |
2480 | BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1, | |
2481 | offsetof(struct __sk_buff, data)), | |
2482 | BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1, | |
2483 | offsetof(struct __sk_buff, data_end)), | |
2484 | BPF_MOV64_REG(BPF_REG_4, BPF_REG_2), | |
2485 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_4, 8), | |
2486 | BPF_JMP_REG(BPF_JGT, BPF_REG_4, BPF_REG_3, 10), | |
2487 | BPF_LDX_MEM(BPF_B, BPF_REG_5, BPF_REG_2, 0), | |
2488 | BPF_MOV64_REG(BPF_REG_4, BPF_REG_2), | |
2489 | BPF_ALU64_REG(BPF_ADD, BPF_REG_4, BPF_REG_5), | |
2490 | BPF_MOV64_REG(BPF_REG_5, BPF_REG_4), | |
2491 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_5, 8), | |
2492 | BPF_JMP_REG(BPF_JGT, BPF_REG_5, BPF_REG_3, 4), | |
2493 | BPF_LD_MAP_FD(BPF_REG_1, 0), | |
2494 | BPF_MOV64_REG(BPF_REG_2, BPF_REG_4), | |
2495 | BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, | |
2496 | BPF_FUNC_map_lookup_elem), | |
2497 | BPF_MOV64_IMM(BPF_REG_0, 0), | |
2498 | BPF_EXIT_INSN(), | |
2499 | }, | |
2500 | .fixup_map1 = { 11 }, | |
2501 | .result = ACCEPT, | |
2502 | .prog_type = BPF_PROG_TYPE_SCHED_CLS, | |
2503 | }, | |
2504 | { | |
2505 | "helper access to packet: test9, cls packet_ptr with bad range", | |
2506 | .insns = { | |
2507 | BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1, | |
2508 | offsetof(struct __sk_buff, data)), | |
2509 | BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1, | |
2510 | offsetof(struct __sk_buff, data_end)), | |
2511 | BPF_MOV64_REG(BPF_REG_4, BPF_REG_2), | |
2512 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_4, 4), | |
2513 | BPF_JMP_REG(BPF_JGT, BPF_REG_4, BPF_REG_3, 2), | |
2514 | BPF_MOV64_IMM(BPF_REG_0, 0), | |
2515 | BPF_EXIT_INSN(), | |
2516 | BPF_LD_MAP_FD(BPF_REG_1, 0), | |
2517 | BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, | |
2518 | BPF_FUNC_map_lookup_elem), | |
2519 | BPF_MOV64_IMM(BPF_REG_0, 0), | |
2520 | BPF_EXIT_INSN(), | |
2521 | }, | |
2522 | .fixup_map1 = { 7 }, | |
2523 | .result = REJECT, | |
2524 | .errstr = "invalid access to packet", | |
2525 | .prog_type = BPF_PROG_TYPE_SCHED_CLS, | |
2526 | }, | |
2527 | { | |
2528 | "helper access to packet: test10, cls packet_ptr with too short range", | |
2529 | .insns = { | |
2530 | BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1, | |
2531 | offsetof(struct __sk_buff, data)), | |
2532 | BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1, | |
2533 | offsetof(struct __sk_buff, data_end)), | |
2534 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, 1), | |
2535 | BPF_MOV64_REG(BPF_REG_4, BPF_REG_2), | |
2536 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_4, 7), | |
2537 | BPF_JMP_REG(BPF_JGT, BPF_REG_4, BPF_REG_3, 3), | |
2538 | BPF_LD_MAP_FD(BPF_REG_1, 0), | |
2539 | BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, | |
2540 | BPF_FUNC_map_lookup_elem), | |
2541 | BPF_MOV64_IMM(BPF_REG_0, 0), | |
2542 | BPF_EXIT_INSN(), | |
2543 | }, | |
2544 | .fixup_map1 = { 6 }, | |
2545 | .result = REJECT, | |
2546 | .errstr = "invalid access to packet", | |
2547 | .prog_type = BPF_PROG_TYPE_SCHED_CLS, | |
2548 | }, | |
2549 | { | |
2550 | "helper access to packet: test11, cls unsuitable helper 1", | |
2551 | .insns = { | |
2552 | BPF_LDX_MEM(BPF_W, BPF_REG_6, BPF_REG_1, | |
2553 | offsetof(struct __sk_buff, data)), | |
2554 | BPF_LDX_MEM(BPF_W, BPF_REG_7, BPF_REG_1, | |
2555 | offsetof(struct __sk_buff, data_end)), | |
2556 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_6, 1), | |
2557 | BPF_MOV64_REG(BPF_REG_3, BPF_REG_6), | |
2558 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_3, 7), | |
2559 | BPF_JMP_REG(BPF_JGT, BPF_REG_3, BPF_REG_7, 4), | |
2560 | BPF_MOV64_IMM(BPF_REG_2, 0), | |
2561 | BPF_MOV64_IMM(BPF_REG_4, 42), | |
2562 | BPF_MOV64_IMM(BPF_REG_5, 0), | |
2563 | BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, | |
2564 | BPF_FUNC_skb_store_bytes), | |
2565 | BPF_MOV64_IMM(BPF_REG_0, 0), | |
2566 | BPF_EXIT_INSN(), | |
2567 | }, | |
2568 | .result = REJECT, | |
2569 | .errstr = "helper access to the packet", | |
2570 | .prog_type = BPF_PROG_TYPE_SCHED_CLS, | |
2571 | }, | |
2572 | { | |
2573 | "helper access to packet: test12, cls unsuitable helper 2", | |
2574 | .insns = { | |
2575 | BPF_LDX_MEM(BPF_W, BPF_REG_6, BPF_REG_1, | |
2576 | offsetof(struct __sk_buff, data)), | |
2577 | BPF_LDX_MEM(BPF_W, BPF_REG_7, BPF_REG_1, | |
2578 | offsetof(struct __sk_buff, data_end)), | |
2579 | BPF_MOV64_REG(BPF_REG_3, BPF_REG_6), | |
2580 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_6, 8), | |
2581 | BPF_JMP_REG(BPF_JGT, BPF_REG_6, BPF_REG_7, 3), | |
2582 | BPF_MOV64_IMM(BPF_REG_2, 0), | |
2583 | BPF_MOV64_IMM(BPF_REG_4, 4), | |
2584 | BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, | |
2585 | BPF_FUNC_skb_load_bytes), | |
2586 | BPF_MOV64_IMM(BPF_REG_0, 0), | |
2587 | BPF_EXIT_INSN(), | |
2588 | }, | |
2589 | .result = REJECT, | |
2590 | .errstr = "helper access to the packet", | |
2591 | .prog_type = BPF_PROG_TYPE_SCHED_CLS, | |
2592 | }, | |
2593 | { | |
2594 | "helper access to packet: test13, cls helper ok", | |
2595 | .insns = { | |
2596 | BPF_LDX_MEM(BPF_W, BPF_REG_6, BPF_REG_1, | |
2597 | offsetof(struct __sk_buff, data)), | |
2598 | BPF_LDX_MEM(BPF_W, BPF_REG_7, BPF_REG_1, | |
2599 | offsetof(struct __sk_buff, data_end)), | |
2600 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_6, 1), | |
2601 | BPF_MOV64_REG(BPF_REG_1, BPF_REG_6), | |
2602 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, 7), | |
2603 | BPF_JMP_REG(BPF_JGT, BPF_REG_1, BPF_REG_7, 6), | |
2604 | BPF_MOV64_REG(BPF_REG_1, BPF_REG_6), | |
2605 | BPF_MOV64_IMM(BPF_REG_2, 4), | |
2606 | BPF_MOV64_IMM(BPF_REG_3, 0), | |
2607 | BPF_MOV64_IMM(BPF_REG_4, 0), | |
2608 | BPF_MOV64_IMM(BPF_REG_5, 0), | |
2609 | BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, | |
2610 | BPF_FUNC_csum_diff), | |
2611 | BPF_MOV64_IMM(BPF_REG_0, 0), | |
2612 | BPF_EXIT_INSN(), | |
2613 | }, | |
2614 | .result = ACCEPT, | |
2615 | .prog_type = BPF_PROG_TYPE_SCHED_CLS, | |
2616 | }, | |
2617 | { | |
2618 | "helper access to packet: test14, cls helper fail sub", | |
2619 | .insns = { | |
2620 | BPF_LDX_MEM(BPF_W, BPF_REG_6, BPF_REG_1, | |
2621 | offsetof(struct __sk_buff, data)), | |
2622 | BPF_LDX_MEM(BPF_W, BPF_REG_7, BPF_REG_1, | |
2623 | offsetof(struct __sk_buff, data_end)), | |
2624 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_6, 1), | |
2625 | BPF_MOV64_REG(BPF_REG_1, BPF_REG_6), | |
2626 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, 7), | |
2627 | BPF_JMP_REG(BPF_JGT, BPF_REG_1, BPF_REG_7, 6), | |
2628 | BPF_ALU64_IMM(BPF_SUB, BPF_REG_1, 4), | |
2629 | BPF_MOV64_IMM(BPF_REG_2, 4), | |
2630 | BPF_MOV64_IMM(BPF_REG_3, 0), | |
2631 | BPF_MOV64_IMM(BPF_REG_4, 0), | |
2632 | BPF_MOV64_IMM(BPF_REG_5, 0), | |
2633 | BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, | |
2634 | BPF_FUNC_csum_diff), | |
2635 | BPF_MOV64_IMM(BPF_REG_0, 0), | |
2636 | BPF_EXIT_INSN(), | |
2637 | }, | |
2638 | .result = REJECT, | |
2639 | .errstr = "type=inv expected=fp", | |
2640 | .prog_type = BPF_PROG_TYPE_SCHED_CLS, | |
2641 | }, | |
2642 | { | |
2643 | "helper access to packet: test15, cls helper fail range 1", | |
2644 | .insns = { | |
2645 | BPF_LDX_MEM(BPF_W, BPF_REG_6, BPF_REG_1, | |
2646 | offsetof(struct __sk_buff, data)), | |
2647 | BPF_LDX_MEM(BPF_W, BPF_REG_7, BPF_REG_1, | |
2648 | offsetof(struct __sk_buff, data_end)), | |
2649 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_6, 1), | |
2650 | BPF_MOV64_REG(BPF_REG_1, BPF_REG_6), | |
2651 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, 7), | |
2652 | BPF_JMP_REG(BPF_JGT, BPF_REG_1, BPF_REG_7, 6), | |
2653 | BPF_MOV64_REG(BPF_REG_1, BPF_REG_6), | |
2654 | BPF_MOV64_IMM(BPF_REG_2, 8), | |
2655 | BPF_MOV64_IMM(BPF_REG_3, 0), | |
2656 | BPF_MOV64_IMM(BPF_REG_4, 0), | |
2657 | BPF_MOV64_IMM(BPF_REG_5, 0), | |
2658 | BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, | |
2659 | BPF_FUNC_csum_diff), | |
2660 | BPF_MOV64_IMM(BPF_REG_0, 0), | |
2661 | BPF_EXIT_INSN(), | |
2662 | }, | |
2663 | .result = REJECT, | |
2664 | .errstr = "invalid access to packet", | |
2665 | .prog_type = BPF_PROG_TYPE_SCHED_CLS, | |
2666 | }, | |
2667 | { | |
2668 | "helper access to packet: test16, cls helper fail range 2", | |
2669 | .insns = { | |
2670 | BPF_LDX_MEM(BPF_W, BPF_REG_6, BPF_REG_1, | |
2671 | offsetof(struct __sk_buff, data)), | |
2672 | BPF_LDX_MEM(BPF_W, BPF_REG_7, BPF_REG_1, | |
2673 | offsetof(struct __sk_buff, data_end)), | |
2674 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_6, 1), | |
2675 | BPF_MOV64_REG(BPF_REG_1, BPF_REG_6), | |
2676 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, 7), | |
2677 | BPF_JMP_REG(BPF_JGT, BPF_REG_1, BPF_REG_7, 6), | |
2678 | BPF_MOV64_REG(BPF_REG_1, BPF_REG_6), | |
2679 | BPF_MOV64_IMM(BPF_REG_2, -9), | |
2680 | BPF_MOV64_IMM(BPF_REG_3, 0), | |
2681 | BPF_MOV64_IMM(BPF_REG_4, 0), | |
2682 | BPF_MOV64_IMM(BPF_REG_5, 0), | |
2683 | BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, | |
2684 | BPF_FUNC_csum_diff), | |
2685 | BPF_MOV64_IMM(BPF_REG_0, 0), | |
2686 | BPF_EXIT_INSN(), | |
2687 | }, | |
2688 | .result = REJECT, | |
2689 | .errstr = "invalid access to packet", | |
2690 | .prog_type = BPF_PROG_TYPE_SCHED_CLS, | |
2691 | }, | |
2692 | { | |
2693 | "helper access to packet: test17, cls helper fail range 3", | |
2694 | .insns = { | |
2695 | BPF_LDX_MEM(BPF_W, BPF_REG_6, BPF_REG_1, | |
2696 | offsetof(struct __sk_buff, data)), | |
2697 | BPF_LDX_MEM(BPF_W, BPF_REG_7, BPF_REG_1, | |
2698 | offsetof(struct __sk_buff, data_end)), | |
2699 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_6, 1), | |
2700 | BPF_MOV64_REG(BPF_REG_1, BPF_REG_6), | |
2701 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, 7), | |
2702 | BPF_JMP_REG(BPF_JGT, BPF_REG_1, BPF_REG_7, 6), | |
2703 | BPF_MOV64_REG(BPF_REG_1, BPF_REG_6), | |
2704 | BPF_MOV64_IMM(BPF_REG_2, ~0), | |
2705 | BPF_MOV64_IMM(BPF_REG_3, 0), | |
2706 | BPF_MOV64_IMM(BPF_REG_4, 0), | |
2707 | BPF_MOV64_IMM(BPF_REG_5, 0), | |
2708 | BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, | |
2709 | BPF_FUNC_csum_diff), | |
2710 | BPF_MOV64_IMM(BPF_REG_0, 0), | |
2711 | BPF_EXIT_INSN(), | |
2712 | }, | |
2713 | .result = REJECT, | |
2714 | .errstr = "invalid access to packet", | |
2715 | .prog_type = BPF_PROG_TYPE_SCHED_CLS, | |
2716 | }, | |
2717 | { | |
2718 | "helper access to packet: test18, cls helper fail range zero", | |
2719 | .insns = { | |
2720 | BPF_LDX_MEM(BPF_W, BPF_REG_6, BPF_REG_1, | |
2721 | offsetof(struct __sk_buff, data)), | |
2722 | BPF_LDX_MEM(BPF_W, BPF_REG_7, BPF_REG_1, | |
2723 | offsetof(struct __sk_buff, data_end)), | |
2724 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_6, 1), | |
2725 | BPF_MOV64_REG(BPF_REG_1, BPF_REG_6), | |
2726 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, 7), | |
2727 | BPF_JMP_REG(BPF_JGT, BPF_REG_1, BPF_REG_7, 6), | |
2728 | BPF_MOV64_REG(BPF_REG_1, BPF_REG_6), | |
2729 | BPF_MOV64_IMM(BPF_REG_2, 0), | |
2730 | BPF_MOV64_IMM(BPF_REG_3, 0), | |
2731 | BPF_MOV64_IMM(BPF_REG_4, 0), | |
2732 | BPF_MOV64_IMM(BPF_REG_5, 0), | |
2733 | BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, | |
2734 | BPF_FUNC_csum_diff), | |
2735 | BPF_MOV64_IMM(BPF_REG_0, 0), | |
2736 | BPF_EXIT_INSN(), | |
2737 | }, | |
2738 | .result = REJECT, | |
2739 | .errstr = "invalid access to packet", | |
2740 | .prog_type = BPF_PROG_TYPE_SCHED_CLS, | |
2741 | }, | |
2742 | { | |
2743 | "helper access to packet: test19, pkt end as input", | |
2744 | .insns = { | |
2745 | BPF_LDX_MEM(BPF_W, BPF_REG_6, BPF_REG_1, | |
2746 | offsetof(struct __sk_buff, data)), | |
2747 | BPF_LDX_MEM(BPF_W, BPF_REG_7, BPF_REG_1, | |
2748 | offsetof(struct __sk_buff, data_end)), | |
2749 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_6, 1), | |
2750 | BPF_MOV64_REG(BPF_REG_1, BPF_REG_6), | |
2751 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, 7), | |
2752 | BPF_JMP_REG(BPF_JGT, BPF_REG_1, BPF_REG_7, 6), | |
2753 | BPF_MOV64_REG(BPF_REG_1, BPF_REG_7), | |
2754 | BPF_MOV64_IMM(BPF_REG_2, 4), | |
2755 | BPF_MOV64_IMM(BPF_REG_3, 0), | |
2756 | BPF_MOV64_IMM(BPF_REG_4, 0), | |
2757 | BPF_MOV64_IMM(BPF_REG_5, 0), | |
2758 | BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, | |
2759 | BPF_FUNC_csum_diff), | |
2760 | BPF_MOV64_IMM(BPF_REG_0, 0), | |
2761 | BPF_EXIT_INSN(), | |
2762 | }, | |
2763 | .result = REJECT, | |
2764 | .errstr = "R1 type=pkt_end expected=fp", | |
2765 | .prog_type = BPF_PROG_TYPE_SCHED_CLS, | |
2766 | }, | |
2767 | { | |
2768 | "helper access to packet: test20, wrong reg", | |
2769 | .insns = { | |
2770 | BPF_LDX_MEM(BPF_W, BPF_REG_6, BPF_REG_1, | |
2771 | offsetof(struct __sk_buff, data)), | |
2772 | BPF_LDX_MEM(BPF_W, BPF_REG_7, BPF_REG_1, | |
2773 | offsetof(struct __sk_buff, data_end)), | |
2774 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_6, 1), | |
2775 | BPF_MOV64_REG(BPF_REG_1, BPF_REG_6), | |
2776 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, 7), | |
2777 | BPF_JMP_REG(BPF_JGT, BPF_REG_1, BPF_REG_7, 6), | |
2778 | BPF_MOV64_IMM(BPF_REG_2, 4), | |
2779 | BPF_MOV64_IMM(BPF_REG_3, 0), | |
2780 | BPF_MOV64_IMM(BPF_REG_4, 0), | |
2781 | BPF_MOV64_IMM(BPF_REG_5, 0), | |
2782 | BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, | |
2783 | BPF_FUNC_csum_diff), | |
2784 | BPF_MOV64_IMM(BPF_REG_0, 0), | |
2785 | BPF_EXIT_INSN(), | |
2786 | }, | |
2787 | .result = REJECT, | |
2788 | .errstr = "invalid access to packet", | |
2789 | .prog_type = BPF_PROG_TYPE_SCHED_CLS, | |
2790 | }, | |
2791 | { | |
2792 | "valid map access into an array with a constant", | |
2793 | .insns = { | |
2794 | BPF_ST_MEM(BPF_DW, BPF_REG_10, -8, 0), | |
2795 | BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), | |
2796 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8), | |
2797 | BPF_LD_MAP_FD(BPF_REG_1, 0), | |
2798 | BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, | |
2799 | BPF_FUNC_map_lookup_elem), | |
2800 | BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 1), | |
2801 | BPF_ST_MEM(BPF_DW, BPF_REG_0, 0, | |
2802 | offsetof(struct test_val, foo)), | |
2803 | BPF_EXIT_INSN(), | |
2804 | }, | |
2805 | .fixup_map2 = { 3 }, | |
2806 | .errstr_unpriv = "R0 leaks addr", | |
2807 | .result_unpriv = REJECT, | |
2808 | .result = ACCEPT, | |
2809 | }, | |
2810 | { | |
2811 | "valid map access into an array with a register", | |
2812 | .insns = { | |
2813 | BPF_ST_MEM(BPF_DW, BPF_REG_10, -8, 0), | |
2814 | BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), | |
2815 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8), | |
2816 | BPF_LD_MAP_FD(BPF_REG_1, 0), | |
2817 | BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, | |
2818 | BPF_FUNC_map_lookup_elem), | |
2819 | BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 4), | |
2820 | BPF_MOV64_IMM(BPF_REG_1, 4), | |
2821 | BPF_ALU64_IMM(BPF_LSH, BPF_REG_1, 2), | |
2822 | BPF_ALU64_REG(BPF_ADD, BPF_REG_0, BPF_REG_1), | |
2823 | BPF_ST_MEM(BPF_DW, BPF_REG_0, 0, | |
2824 | offsetof(struct test_val, foo)), | |
2825 | BPF_EXIT_INSN(), | |
2826 | }, | |
2827 | .fixup_map2 = { 3 }, | |
2828 | .errstr_unpriv = "R0 pointer arithmetic prohibited", | |
2829 | .result_unpriv = REJECT, | |
2830 | .result = ACCEPT, | |
2831 | }, | |
2832 | { | |
2833 | "valid map access into an array with a variable", | |
2834 | .insns = { | |
2835 | BPF_ST_MEM(BPF_DW, BPF_REG_10, -8, 0), | |
2836 | BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), | |
2837 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8), | |
2838 | BPF_LD_MAP_FD(BPF_REG_1, 0), | |
2839 | BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, | |
2840 | BPF_FUNC_map_lookup_elem), | |
2841 | BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 5), | |
2842 | BPF_LDX_MEM(BPF_W, BPF_REG_1, BPF_REG_0, 0), | |
2843 | BPF_JMP_IMM(BPF_JGE, BPF_REG_1, MAX_ENTRIES, 3), | |
2844 | BPF_ALU64_IMM(BPF_LSH, BPF_REG_1, 2), | |
2845 | BPF_ALU64_REG(BPF_ADD, BPF_REG_0, BPF_REG_1), | |
2846 | BPF_ST_MEM(BPF_DW, BPF_REG_0, 0, | |
2847 | offsetof(struct test_val, foo)), | |
2848 | BPF_EXIT_INSN(), | |
2849 | }, | |
2850 | .fixup_map2 = { 3 }, | |
2851 | .errstr_unpriv = "R0 pointer arithmetic prohibited", | |
2852 | .result_unpriv = REJECT, | |
2853 | .result = ACCEPT, | |
2854 | }, | |
2855 | { | |
2856 | "valid map access into an array with a signed variable", | |
2857 | .insns = { | |
2858 | BPF_ST_MEM(BPF_DW, BPF_REG_10, -8, 0), | |
2859 | BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), | |
2860 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8), | |
2861 | BPF_LD_MAP_FD(BPF_REG_1, 0), | |
2862 | BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, | |
2863 | BPF_FUNC_map_lookup_elem), | |
2864 | BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 9), | |
2865 | BPF_LDX_MEM(BPF_W, BPF_REG_1, BPF_REG_0, 0), | |
2866 | BPF_JMP_IMM(BPF_JSGT, BPF_REG_1, 0xffffffff, 1), | |
2867 | BPF_MOV32_IMM(BPF_REG_1, 0), | |
2868 | BPF_MOV32_IMM(BPF_REG_2, MAX_ENTRIES), | |
2869 | BPF_JMP_REG(BPF_JSGT, BPF_REG_2, BPF_REG_1, 1), | |
2870 | BPF_MOV32_IMM(BPF_REG_1, 0), | |
2871 | BPF_ALU32_IMM(BPF_LSH, BPF_REG_1, 2), | |
2872 | BPF_ALU64_REG(BPF_ADD, BPF_REG_0, BPF_REG_1), | |
2873 | BPF_ST_MEM(BPF_DW, BPF_REG_0, 0, | |
2874 | offsetof(struct test_val, foo)), | |
2875 | BPF_EXIT_INSN(), | |
2876 | }, | |
2877 | .fixup_map2 = { 3 }, | |
2878 | .errstr_unpriv = "R0 pointer arithmetic prohibited", | |
2879 | .result_unpriv = REJECT, | |
2880 | .result = ACCEPT, | |
2881 | }, | |
2882 | { | |
2883 | "invalid map access into an array with a constant", | |
2884 | .insns = { | |
2885 | BPF_ST_MEM(BPF_DW, BPF_REG_10, -8, 0), | |
2886 | BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), | |
2887 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8), | |
2888 | BPF_LD_MAP_FD(BPF_REG_1, 0), | |
2889 | BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, | |
2890 | BPF_FUNC_map_lookup_elem), | |
2891 | BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 1), | |
2892 | BPF_ST_MEM(BPF_DW, BPF_REG_0, (MAX_ENTRIES + 1) << 2, | |
2893 | offsetof(struct test_val, foo)), | |
2894 | BPF_EXIT_INSN(), | |
2895 | }, | |
2896 | .fixup_map2 = { 3 }, | |
2897 | .errstr = "invalid access to map value, value_size=48 off=48 size=8", | |
2898 | .result = REJECT, | |
2899 | }, | |
2900 | { | |
2901 | "invalid map access into an array with a register", | |
2902 | .insns = { | |
2903 | BPF_ST_MEM(BPF_DW, BPF_REG_10, -8, 0), | |
2904 | BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), | |
2905 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8), | |
2906 | BPF_LD_MAP_FD(BPF_REG_1, 0), | |
2907 | BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, | |
2908 | BPF_FUNC_map_lookup_elem), | |
2909 | BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 4), | |
2910 | BPF_MOV64_IMM(BPF_REG_1, MAX_ENTRIES + 1), | |
2911 | BPF_ALU64_IMM(BPF_LSH, BPF_REG_1, 2), | |
2912 | BPF_ALU64_REG(BPF_ADD, BPF_REG_0, BPF_REG_1), | |
2913 | BPF_ST_MEM(BPF_DW, BPF_REG_0, 0, | |
2914 | offsetof(struct test_val, foo)), | |
2915 | BPF_EXIT_INSN(), | |
2916 | }, | |
2917 | .fixup_map2 = { 3 }, | |
2918 | .errstr_unpriv = "R0 pointer arithmetic prohibited", | |
2919 | .errstr = "R0 min value is outside of the array range", | |
2920 | .result_unpriv = REJECT, | |
2921 | .result = REJECT, | |
2922 | }, | |
2923 | { | |
2924 | "invalid map access into an array with a variable", | |
2925 | .insns = { | |
2926 | BPF_ST_MEM(BPF_DW, BPF_REG_10, -8, 0), | |
2927 | BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), | |
2928 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8), | |
2929 | BPF_LD_MAP_FD(BPF_REG_1, 0), | |
2930 | BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, | |
2931 | BPF_FUNC_map_lookup_elem), | |
2932 | BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 4), | |
2933 | BPF_LDX_MEM(BPF_W, BPF_REG_1, BPF_REG_0, 0), | |
2934 | BPF_ALU64_IMM(BPF_LSH, BPF_REG_1, 2), | |
2935 | BPF_ALU64_REG(BPF_ADD, BPF_REG_0, BPF_REG_1), | |
2936 | BPF_ST_MEM(BPF_DW, BPF_REG_0, 0, | |
2937 | offsetof(struct test_val, foo)), | |
2938 | BPF_EXIT_INSN(), | |
2939 | }, | |
2940 | .fixup_map2 = { 3 }, | |
2941 | .errstr_unpriv = "R0 pointer arithmetic prohibited", | |
2942 | .errstr = "R0 min value is negative, either use unsigned index or do a if (index >=0) check.", | |
2943 | .result_unpriv = REJECT, | |
2944 | .result = REJECT, | |
2945 | }, | |
2946 | { | |
2947 | "invalid map access into an array with no floor check", | |
2948 | .insns = { | |
2949 | BPF_ST_MEM(BPF_DW, BPF_REG_10, -8, 0), | |
2950 | BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), | |
2951 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8), | |
2952 | BPF_LD_MAP_FD(BPF_REG_1, 0), | |
2953 | BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, | |
2954 | BPF_FUNC_map_lookup_elem), | |
2955 | BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 7), | |
2956 | BPF_LDX_MEM(BPF_W, BPF_REG_1, BPF_REG_0, 0), | |
2957 | BPF_MOV32_IMM(BPF_REG_2, MAX_ENTRIES), | |
2958 | BPF_JMP_REG(BPF_JSGT, BPF_REG_2, BPF_REG_1, 1), | |
2959 | BPF_MOV32_IMM(BPF_REG_1, 0), | |
2960 | BPF_ALU32_IMM(BPF_LSH, BPF_REG_1, 2), | |
2961 | BPF_ALU64_REG(BPF_ADD, BPF_REG_0, BPF_REG_1), | |
2962 | BPF_ST_MEM(BPF_DW, BPF_REG_0, 0, | |
2963 | offsetof(struct test_val, foo)), | |
2964 | BPF_EXIT_INSN(), | |
2965 | }, | |
2966 | .fixup_map2 = { 3 }, | |
2967 | .errstr_unpriv = "R0 pointer arithmetic prohibited", | |
2968 | .errstr = "R0 min value is negative, either use unsigned index or do a if (index >=0) check.", | |
2969 | .result_unpriv = REJECT, | |
2970 | .result = REJECT, | |
2971 | }, | |
2972 | { | |
2973 | "invalid map access into an array with a invalid max check", | |
2974 | .insns = { | |
2975 | BPF_ST_MEM(BPF_DW, BPF_REG_10, -8, 0), | |
2976 | BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), | |
2977 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8), | |
2978 | BPF_LD_MAP_FD(BPF_REG_1, 0), | |
2979 | BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, | |
2980 | BPF_FUNC_map_lookup_elem), | |
2981 | BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 7), | |
2982 | BPF_LDX_MEM(BPF_W, BPF_REG_1, BPF_REG_0, 0), | |
2983 | BPF_MOV32_IMM(BPF_REG_2, MAX_ENTRIES + 1), | |
2984 | BPF_JMP_REG(BPF_JGT, BPF_REG_2, BPF_REG_1, 1), | |
2985 | BPF_MOV32_IMM(BPF_REG_1, 0), | |
2986 | BPF_ALU32_IMM(BPF_LSH, BPF_REG_1, 2), | |
2987 | BPF_ALU64_REG(BPF_ADD, BPF_REG_0, BPF_REG_1), | |
2988 | BPF_ST_MEM(BPF_DW, BPF_REG_0, 0, | |
2989 | offsetof(struct test_val, foo)), | |
2990 | BPF_EXIT_INSN(), | |
2991 | }, | |
2992 | .fixup_map2 = { 3 }, | |
2993 | .errstr_unpriv = "R0 pointer arithmetic prohibited", | |
2994 | .errstr = "invalid access to map value, value_size=48 off=44 size=8", | |
2995 | .result_unpriv = REJECT, | |
2996 | .result = REJECT, | |
2997 | }, | |
2998 | { | |
2999 | "invalid map access into an array with a invalid max check", | |
3000 | .insns = { | |
3001 | BPF_ST_MEM(BPF_DW, BPF_REG_10, -8, 0), | |
3002 | BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), | |
3003 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8), | |
3004 | BPF_LD_MAP_FD(BPF_REG_1, 0), | |
3005 | BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, | |
3006 | BPF_FUNC_map_lookup_elem), | |
3007 | BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 10), | |
3008 | BPF_MOV64_REG(BPF_REG_8, BPF_REG_0), | |
3009 | BPF_ST_MEM(BPF_DW, BPF_REG_10, -8, 0), | |
3010 | BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), | |
3011 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8), | |
3012 | BPF_LD_MAP_FD(BPF_REG_1, 0), | |
3013 | BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, | |
3014 | BPF_FUNC_map_lookup_elem), | |
3015 | BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 2), | |
3016 | BPF_ALU64_REG(BPF_ADD, BPF_REG_0, BPF_REG_8), | |
3017 | BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_0, | |
3018 | offsetof(struct test_val, foo)), | |
3019 | BPF_EXIT_INSN(), | |
3020 | }, | |
3021 | .fixup_map2 = { 3, 11 }, | |
3022 | .errstr_unpriv = "R0 pointer arithmetic prohibited", | |
3023 | .errstr = "R0 min value is negative, either use unsigned index or do a if (index >=0) check.", | |
3024 | .result_unpriv = REJECT, | |
3025 | .result = REJECT, | |
3026 | }, | |
3027 | { | |
3028 | "multiple registers share map_lookup_elem result", | |
3029 | .insns = { | |
3030 | BPF_MOV64_IMM(BPF_REG_1, 10), | |
3031 | BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_1, -8), | |
3032 | BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), | |
3033 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8), | |
3034 | BPF_LD_MAP_FD(BPF_REG_1, 0), | |
3035 | BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, | |
3036 | BPF_FUNC_map_lookup_elem), | |
3037 | BPF_MOV64_REG(BPF_REG_4, BPF_REG_0), | |
3038 | BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 1), | |
3039 | BPF_ST_MEM(BPF_DW, BPF_REG_4, 0, 0), | |
3040 | BPF_EXIT_INSN(), | |
3041 | }, | |
3042 | .fixup_map1 = { 4 }, | |
3043 | .result = ACCEPT, | |
3044 | .prog_type = BPF_PROG_TYPE_SCHED_CLS | |
3045 | }, | |
3046 | { | |
3047 | "invalid memory access with multiple map_lookup_elem calls", | |
3048 | .insns = { | |
3049 | BPF_MOV64_IMM(BPF_REG_1, 10), | |
3050 | BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_1, -8), | |
3051 | BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), | |
3052 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8), | |
3053 | BPF_LD_MAP_FD(BPF_REG_1, 0), | |
3054 | BPF_MOV64_REG(BPF_REG_8, BPF_REG_1), | |
3055 | BPF_MOV64_REG(BPF_REG_7, BPF_REG_2), | |
3056 | BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, | |
3057 | BPF_FUNC_map_lookup_elem), | |
3058 | BPF_MOV64_REG(BPF_REG_4, BPF_REG_0), | |
3059 | BPF_MOV64_REG(BPF_REG_1, BPF_REG_8), | |
3060 | BPF_MOV64_REG(BPF_REG_2, BPF_REG_7), | |
3061 | BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, | |
3062 | BPF_FUNC_map_lookup_elem), | |
3063 | BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 1), | |
3064 | BPF_ST_MEM(BPF_DW, BPF_REG_4, 0, 0), | |
3065 | BPF_EXIT_INSN(), | |
3066 | }, | |
3067 | .fixup_map1 = { 4 }, | |
3068 | .result = REJECT, | |
3069 | .errstr = "R4 !read_ok", | |
3070 | .prog_type = BPF_PROG_TYPE_SCHED_CLS | |
3071 | }, | |
3072 | { | |
3073 | "valid indirect map_lookup_elem access with 2nd lookup in branch", | |
3074 | .insns = { | |
3075 | BPF_MOV64_IMM(BPF_REG_1, 10), | |
3076 | BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_1, -8), | |
3077 | BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), | |
3078 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8), | |
3079 | BPF_LD_MAP_FD(BPF_REG_1, 0), | |
3080 | BPF_MOV64_REG(BPF_REG_8, BPF_REG_1), | |
3081 | BPF_MOV64_REG(BPF_REG_7, BPF_REG_2), | |
3082 | BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, | |
3083 | BPF_FUNC_map_lookup_elem), | |
3084 | BPF_MOV64_IMM(BPF_REG_2, 10), | |
3085 | BPF_JMP_IMM(BPF_JNE, BPF_REG_2, 0, 3), | |
3086 | BPF_MOV64_REG(BPF_REG_1, BPF_REG_8), | |
3087 | BPF_MOV64_REG(BPF_REG_2, BPF_REG_7), | |
3088 | BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, | |
3089 | BPF_FUNC_map_lookup_elem), | |
3090 | BPF_MOV64_REG(BPF_REG_4, BPF_REG_0), | |
3091 | BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 1), | |
3092 | BPF_ST_MEM(BPF_DW, BPF_REG_4, 0, 0), | |
3093 | BPF_EXIT_INSN(), | |
3094 | }, | |
3095 | .fixup_map1 = { 4 }, | |
3096 | .result = ACCEPT, | |
3097 | .prog_type = BPF_PROG_TYPE_SCHED_CLS | |
3098 | }, | |
3099 | { | |
3100 | "multiple registers share map_lookup_elem bad reg type", | |
3101 | .insns = { | |
3102 | BPF_MOV64_IMM(BPF_REG_1, 10), | |
3103 | BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_1, -8), | |
3104 | BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), | |
3105 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8), | |
3106 | BPF_LD_MAP_FD(BPF_REG_1, 0), | |
3107 | BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, | |
3108 | BPF_FUNC_map_lookup_elem), | |
3109 | BPF_MOV64_REG(BPF_REG_2, BPF_REG_0), | |
3110 | BPF_MOV64_REG(BPF_REG_3, BPF_REG_0), | |
3111 | BPF_MOV64_REG(BPF_REG_4, BPF_REG_0), | |
3112 | BPF_MOV64_REG(BPF_REG_5, BPF_REG_0), | |
3113 | BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 1), | |
3114 | BPF_MOV64_IMM(BPF_REG_1, 1), | |
3115 | BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 1), | |
3116 | BPF_MOV64_IMM(BPF_REG_1, 2), | |
3117 | BPF_JMP_IMM(BPF_JEQ, BPF_REG_3, 0, 1), | |
3118 | BPF_ST_MEM(BPF_DW, BPF_REG_3, 0, 0), | |
3119 | BPF_MOV64_IMM(BPF_REG_1, 3), | |
3120 | BPF_EXIT_INSN(), | |
3121 | }, | |
3122 | .fixup_map1 = { 4 }, | |
3123 | .result = REJECT, | |
3124 | .errstr = "R3 invalid mem access 'inv'", | |
3125 | .prog_type = BPF_PROG_TYPE_SCHED_CLS | |
3126 | }, | |
3127 | { | |
3128 | "invalid map access from else condition", | |
3129 | .insns = { | |
3130 | BPF_ST_MEM(BPF_DW, BPF_REG_10, -8, 0), | |
3131 | BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), | |
3132 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8), | |
3133 | BPF_LD_MAP_FD(BPF_REG_1, 0), | |
3134 | BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, BPF_FUNC_map_lookup_elem), | |
3135 | BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 6), | |
3136 | BPF_LDX_MEM(BPF_W, BPF_REG_1, BPF_REG_0, 0), | |
3137 | BPF_JMP_IMM(BPF_JGE, BPF_REG_1, MAX_ENTRIES-1, 1), | |
3138 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, 1), | |
3139 | BPF_ALU64_IMM(BPF_LSH, BPF_REG_1, 2), | |
3140 | BPF_ALU64_REG(BPF_ADD, BPF_REG_0, BPF_REG_1), | |
3141 | BPF_ST_MEM(BPF_DW, BPF_REG_0, 0, offsetof(struct test_val, foo)), | |
3142 | BPF_EXIT_INSN(), | |
3143 | }, | |
3144 | .fixup_map2 = { 3 }, | |
3145 | .errstr = "R0 unbounded memory access, make sure to bounds check any array access into a map", | |
3146 | .result = REJECT, | |
3147 | .errstr_unpriv = "R0 pointer arithmetic prohibited", | |
3148 | .result_unpriv = REJECT, | |
3149 | }, | |
3150 | { | |
3151 | "constant register |= constant should keep constant type", | |
3152 | .insns = { | |
3153 | BPF_MOV64_REG(BPF_REG_1, BPF_REG_10), | |
3154 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, -48), | |
3155 | BPF_MOV64_IMM(BPF_REG_2, 34), | |
3156 | BPF_ALU64_IMM(BPF_OR, BPF_REG_2, 13), | |
3157 | BPF_MOV64_IMM(BPF_REG_3, 0), | |
3158 | BPF_EMIT_CALL(BPF_FUNC_probe_read), | |
3159 | BPF_EXIT_INSN(), | |
3160 | }, | |
3161 | .result = ACCEPT, | |
3162 | .prog_type = BPF_PROG_TYPE_TRACEPOINT, | |
3163 | }, | |
3164 | { | |
3165 | "constant register |= constant should not bypass stack boundary checks", | |
3166 | .insns = { | |
3167 | BPF_MOV64_REG(BPF_REG_1, BPF_REG_10), | |
3168 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, -48), | |
3169 | BPF_MOV64_IMM(BPF_REG_2, 34), | |
3170 | BPF_ALU64_IMM(BPF_OR, BPF_REG_2, 24), | |
3171 | BPF_MOV64_IMM(BPF_REG_3, 0), | |
3172 | BPF_EMIT_CALL(BPF_FUNC_probe_read), | |
3173 | BPF_EXIT_INSN(), | |
3174 | }, | |
3175 | .errstr = "invalid stack type R1 off=-48 access_size=58", | |
3176 | .result = REJECT, | |
3177 | .prog_type = BPF_PROG_TYPE_TRACEPOINT, | |
3178 | }, | |
3179 | { | |
3180 | "constant register |= constant register should keep constant type", | |
3181 | .insns = { | |
3182 | BPF_MOV64_REG(BPF_REG_1, BPF_REG_10), | |
3183 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, -48), | |
3184 | BPF_MOV64_IMM(BPF_REG_2, 34), | |
3185 | BPF_MOV64_IMM(BPF_REG_4, 13), | |
3186 | BPF_ALU64_REG(BPF_OR, BPF_REG_2, BPF_REG_4), | |
3187 | BPF_MOV64_IMM(BPF_REG_3, 0), | |
3188 | BPF_EMIT_CALL(BPF_FUNC_probe_read), | |
3189 | BPF_EXIT_INSN(), | |
3190 | }, | |
3191 | .result = ACCEPT, | |
3192 | .prog_type = BPF_PROG_TYPE_TRACEPOINT, | |
3193 | }, | |
3194 | { | |
3195 | "constant register |= constant register should not bypass stack boundary checks", | |
3196 | .insns = { | |
3197 | BPF_MOV64_REG(BPF_REG_1, BPF_REG_10), | |
3198 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, -48), | |
3199 | BPF_MOV64_IMM(BPF_REG_2, 34), | |
3200 | BPF_MOV64_IMM(BPF_REG_4, 24), | |
3201 | BPF_ALU64_REG(BPF_OR, BPF_REG_2, BPF_REG_4), | |
3202 | BPF_MOV64_IMM(BPF_REG_3, 0), | |
3203 | BPF_EMIT_CALL(BPF_FUNC_probe_read), | |
3204 | BPF_EXIT_INSN(), | |
3205 | }, | |
3206 | .errstr = "invalid stack type R1 off=-48 access_size=58", | |
3207 | .result = REJECT, | |
3208 | .prog_type = BPF_PROG_TYPE_TRACEPOINT, | |
3209 | }, | |
3210 | { | |
3211 | "invalid direct packet write for LWT_IN", | |
3212 | .insns = { | |
3213 | BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1, | |
3214 | offsetof(struct __sk_buff, data)), | |
3215 | BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1, | |
3216 | offsetof(struct __sk_buff, data_end)), | |
3217 | BPF_MOV64_REG(BPF_REG_0, BPF_REG_2), | |
3218 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_0, 8), | |
3219 | BPF_JMP_REG(BPF_JGT, BPF_REG_0, BPF_REG_3, 1), | |
3220 | BPF_STX_MEM(BPF_B, BPF_REG_2, BPF_REG_2, 0), | |
3221 | BPF_MOV64_IMM(BPF_REG_0, 0), | |
3222 | BPF_EXIT_INSN(), | |
3223 | }, | |
3224 | .errstr = "cannot write into packet", | |
3225 | .result = REJECT, | |
3226 | .prog_type = BPF_PROG_TYPE_LWT_IN, | |
3227 | }, | |
3228 | { | |
3229 | "invalid direct packet write for LWT_OUT", | |
3230 | .insns = { | |
3231 | BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1, | |
3232 | offsetof(struct __sk_buff, data)), | |
3233 | BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1, | |
3234 | offsetof(struct __sk_buff, data_end)), | |
3235 | BPF_MOV64_REG(BPF_REG_0, BPF_REG_2), | |
3236 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_0, 8), | |
3237 | BPF_JMP_REG(BPF_JGT, BPF_REG_0, BPF_REG_3, 1), | |
3238 | BPF_STX_MEM(BPF_B, BPF_REG_2, BPF_REG_2, 0), | |
3239 | BPF_MOV64_IMM(BPF_REG_0, 0), | |
3240 | BPF_EXIT_INSN(), | |
3241 | }, | |
3242 | .errstr = "cannot write into packet", | |
3243 | .result = REJECT, | |
3244 | .prog_type = BPF_PROG_TYPE_LWT_OUT, | |
3245 | }, | |
3246 | { | |
3247 | "direct packet write for LWT_XMIT", | |
3248 | .insns = { | |
3249 | BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1, | |
3250 | offsetof(struct __sk_buff, data)), | |
3251 | BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1, | |
3252 | offsetof(struct __sk_buff, data_end)), | |
3253 | BPF_MOV64_REG(BPF_REG_0, BPF_REG_2), | |
3254 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_0, 8), | |
3255 | BPF_JMP_REG(BPF_JGT, BPF_REG_0, BPF_REG_3, 1), | |
3256 | BPF_STX_MEM(BPF_B, BPF_REG_2, BPF_REG_2, 0), | |
3257 | BPF_MOV64_IMM(BPF_REG_0, 0), | |
3258 | BPF_EXIT_INSN(), | |
3259 | }, | |
3260 | .result = ACCEPT, | |
3261 | .prog_type = BPF_PROG_TYPE_LWT_XMIT, | |
3262 | }, | |
3263 | { | |
3264 | "direct packet read for LWT_IN", | |
3265 | .insns = { | |
3266 | BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1, | |
3267 | offsetof(struct __sk_buff, data)), | |
3268 | BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1, | |
3269 | offsetof(struct __sk_buff, data_end)), | |
3270 | BPF_MOV64_REG(BPF_REG_0, BPF_REG_2), | |
3271 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_0, 8), | |
3272 | BPF_JMP_REG(BPF_JGT, BPF_REG_0, BPF_REG_3, 1), | |
3273 | BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_2, 0), | |
3274 | BPF_MOV64_IMM(BPF_REG_0, 0), | |
3275 | BPF_EXIT_INSN(), | |
3276 | }, | |
3277 | .result = ACCEPT, | |
3278 | .prog_type = BPF_PROG_TYPE_LWT_IN, | |
3279 | }, | |
3280 | { | |
3281 | "direct packet read for LWT_OUT", | |
3282 | .insns = { | |
3283 | BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1, | |
3284 | offsetof(struct __sk_buff, data)), | |
3285 | BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1, | |
3286 | offsetof(struct __sk_buff, data_end)), | |
3287 | BPF_MOV64_REG(BPF_REG_0, BPF_REG_2), | |
3288 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_0, 8), | |
3289 | BPF_JMP_REG(BPF_JGT, BPF_REG_0, BPF_REG_3, 1), | |
3290 | BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_2, 0), | |
3291 | BPF_MOV64_IMM(BPF_REG_0, 0), | |
3292 | BPF_EXIT_INSN(), | |
3293 | }, | |
3294 | .result = ACCEPT, | |
3295 | .prog_type = BPF_PROG_TYPE_LWT_OUT, | |
3296 | }, | |
3297 | { | |
3298 | "direct packet read for LWT_XMIT", | |
3299 | .insns = { | |
3300 | BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1, | |
3301 | offsetof(struct __sk_buff, data)), | |
3302 | BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1, | |
3303 | offsetof(struct __sk_buff, data_end)), | |
3304 | BPF_MOV64_REG(BPF_REG_0, BPF_REG_2), | |
3305 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_0, 8), | |
3306 | BPF_JMP_REG(BPF_JGT, BPF_REG_0, BPF_REG_3, 1), | |
3307 | BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_2, 0), | |
3308 | BPF_MOV64_IMM(BPF_REG_0, 0), | |
3309 | BPF_EXIT_INSN(), | |
3310 | }, | |
3311 | .result = ACCEPT, | |
3312 | .prog_type = BPF_PROG_TYPE_LWT_XMIT, | |
3313 | }, | |
3314 | { | |
3315 | "invalid access of tc_classid for LWT_IN", | |
3316 | .insns = { | |
3317 | BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1, | |
3318 | offsetof(struct __sk_buff, tc_classid)), | |
3319 | BPF_EXIT_INSN(), | |
3320 | }, | |
3321 | .result = REJECT, | |
3322 | .errstr = "invalid bpf_context access", | |
3323 | }, | |
3324 | { | |
3325 | "invalid access of tc_classid for LWT_OUT", | |
3326 | .insns = { | |
3327 | BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1, | |
3328 | offsetof(struct __sk_buff, tc_classid)), | |
3329 | BPF_EXIT_INSN(), | |
3330 | }, | |
3331 | .result = REJECT, | |
3332 | .errstr = "invalid bpf_context access", | |
3333 | }, | |
3334 | { | |
3335 | "invalid access of tc_classid for LWT_XMIT", | |
3336 | .insns = { | |
3337 | BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1, | |
3338 | offsetof(struct __sk_buff, tc_classid)), | |
3339 | BPF_EXIT_INSN(), | |
3340 | }, | |
3341 | .result = REJECT, | |
3342 | .errstr = "invalid bpf_context access", | |
3343 | }, | |
3344 | { | |
3345 | "helper access to map: full range", | |
3346 | .insns = { | |
3347 | BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), | |
3348 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8), | |
3349 | BPF_ST_MEM(BPF_DW, BPF_REG_2, 0, 0), | |
3350 | BPF_LD_MAP_FD(BPF_REG_1, 0), | |
3351 | BPF_EMIT_CALL(BPF_FUNC_map_lookup_elem), | |
3352 | BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 4), | |
3353 | BPF_MOV64_REG(BPF_REG_1, BPF_REG_0), | |
3354 | BPF_MOV64_IMM(BPF_REG_2, sizeof(struct test_val)), | |
3355 | BPF_MOV64_IMM(BPF_REG_3, 0), | |
3356 | BPF_EMIT_CALL(BPF_FUNC_probe_read), | |
3357 | BPF_EXIT_INSN(), | |
3358 | }, | |
3359 | .fixup_map2 = { 3 }, | |
3360 | .result = ACCEPT, | |
3361 | .prog_type = BPF_PROG_TYPE_TRACEPOINT, | |
3362 | }, | |
3363 | { | |
3364 | "helper access to map: partial range", | |
3365 | .insns = { | |
3366 | BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), | |
3367 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8), | |
3368 | BPF_ST_MEM(BPF_DW, BPF_REG_2, 0, 0), | |
3369 | BPF_LD_MAP_FD(BPF_REG_1, 0), | |
3370 | BPF_EMIT_CALL(BPF_FUNC_map_lookup_elem), | |
3371 | BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 4), | |
3372 | BPF_MOV64_REG(BPF_REG_1, BPF_REG_0), | |
3373 | BPF_MOV64_IMM(BPF_REG_2, 8), | |
3374 | BPF_MOV64_IMM(BPF_REG_3, 0), | |
3375 | BPF_EMIT_CALL(BPF_FUNC_probe_read), | |
3376 | BPF_EXIT_INSN(), | |
3377 | }, | |
3378 | .fixup_map2 = { 3 }, | |
3379 | .result = ACCEPT, | |
3380 | .prog_type = BPF_PROG_TYPE_TRACEPOINT, | |
3381 | }, | |
3382 | { | |
3383 | "helper access to map: empty range", | |
3384 | .insns = { | |
3385 | BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), | |
3386 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8), | |
3387 | BPF_ST_MEM(BPF_DW, BPF_REG_2, 0, 0), | |
3388 | BPF_LD_MAP_FD(BPF_REG_1, 0), | |
3389 | BPF_EMIT_CALL(BPF_FUNC_map_lookup_elem), | |
3390 | BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 4), | |
3391 | BPF_MOV64_REG(BPF_REG_1, BPF_REG_0), | |
3392 | BPF_MOV64_IMM(BPF_REG_2, 0), | |
3393 | BPF_MOV64_IMM(BPF_REG_3, 0), | |
3394 | BPF_EMIT_CALL(BPF_FUNC_probe_read), | |
3395 | BPF_EXIT_INSN(), | |
3396 | }, | |
3397 | .fixup_map2 = { 3 }, | |
3398 | .errstr = "invalid access to map value, value_size=48 off=0 size=0", | |
3399 | .result = REJECT, | |
3400 | .prog_type = BPF_PROG_TYPE_TRACEPOINT, | |
3401 | }, | |
3402 | { | |
3403 | "helper access to map: out-of-bound range", | |
3404 | .insns = { | |
3405 | BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), | |
3406 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8), | |
3407 | BPF_ST_MEM(BPF_DW, BPF_REG_2, 0, 0), | |
3408 | BPF_LD_MAP_FD(BPF_REG_1, 0), | |
3409 | BPF_EMIT_CALL(BPF_FUNC_map_lookup_elem), | |
3410 | BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 4), | |
3411 | BPF_MOV64_REG(BPF_REG_1, BPF_REG_0), | |
3412 | BPF_MOV64_IMM(BPF_REG_2, sizeof(struct test_val) + 8), | |
3413 | BPF_MOV64_IMM(BPF_REG_3, 0), | |
3414 | BPF_EMIT_CALL(BPF_FUNC_probe_read), | |
3415 | BPF_EXIT_INSN(), | |
3416 | }, | |
3417 | .fixup_map2 = { 3 }, | |
3418 | .errstr = "invalid access to map value, value_size=48 off=0 size=56", | |
3419 | .result = REJECT, | |
3420 | .prog_type = BPF_PROG_TYPE_TRACEPOINT, | |
3421 | }, | |
3422 | { | |
3423 | "helper access to map: negative range", | |
3424 | .insns = { | |
3425 | BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), | |
3426 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8), | |
3427 | BPF_ST_MEM(BPF_DW, BPF_REG_2, 0, 0), | |
3428 | BPF_LD_MAP_FD(BPF_REG_1, 0), | |
3429 | BPF_EMIT_CALL(BPF_FUNC_map_lookup_elem), | |
3430 | BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 4), | |
3431 | BPF_MOV64_REG(BPF_REG_1, BPF_REG_0), | |
3432 | BPF_MOV64_IMM(BPF_REG_2, -8), | |
3433 | BPF_MOV64_IMM(BPF_REG_3, 0), | |
3434 | BPF_EMIT_CALL(BPF_FUNC_probe_read), | |
3435 | BPF_EXIT_INSN(), | |
3436 | }, | |
3437 | .fixup_map2 = { 3 }, | |
3438 | .errstr = "invalid access to map value, value_size=48 off=0 size=-8", | |
3439 | .result = REJECT, | |
3440 | .prog_type = BPF_PROG_TYPE_TRACEPOINT, | |
3441 | }, | |
3442 | { | |
3443 | "helper access to adjusted map (via const imm): full range", | |
3444 | .insns = { | |
3445 | BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), | |
3446 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8), | |
3447 | BPF_ST_MEM(BPF_DW, BPF_REG_2, 0, 0), | |
3448 | BPF_LD_MAP_FD(BPF_REG_1, 0), | |
3449 | BPF_EMIT_CALL(BPF_FUNC_map_lookup_elem), | |
3450 | BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 5), | |
3451 | BPF_MOV64_REG(BPF_REG_1, BPF_REG_0), | |
3452 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, | |
3453 | offsetof(struct test_val, foo)), | |
3454 | BPF_MOV64_IMM(BPF_REG_2, | |
3455 | sizeof(struct test_val) - | |
3456 | offsetof(struct test_val, foo)), | |
3457 | BPF_MOV64_IMM(BPF_REG_3, 0), | |
3458 | BPF_EMIT_CALL(BPF_FUNC_probe_read), | |
3459 | BPF_EXIT_INSN(), | |
3460 | }, | |
3461 | .fixup_map2 = { 3 }, | |
3462 | .result = ACCEPT, | |
3463 | .prog_type = BPF_PROG_TYPE_TRACEPOINT, | |
3464 | }, | |
3465 | { | |
3466 | "helper access to adjusted map (via const imm): partial range", | |
3467 | .insns = { | |
3468 | BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), | |
3469 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8), | |
3470 | BPF_ST_MEM(BPF_DW, BPF_REG_2, 0, 0), | |
3471 | BPF_LD_MAP_FD(BPF_REG_1, 0), | |
3472 | BPF_EMIT_CALL(BPF_FUNC_map_lookup_elem), | |
3473 | BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 5), | |
3474 | BPF_MOV64_REG(BPF_REG_1, BPF_REG_0), | |
3475 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, | |
3476 | offsetof(struct test_val, foo)), | |
3477 | BPF_MOV64_IMM(BPF_REG_2, 8), | |
3478 | BPF_MOV64_IMM(BPF_REG_3, 0), | |
3479 | BPF_EMIT_CALL(BPF_FUNC_probe_read), | |
3480 | BPF_EXIT_INSN(), | |
3481 | }, | |
3482 | .fixup_map2 = { 3 }, | |
3483 | .result = ACCEPT, | |
3484 | .prog_type = BPF_PROG_TYPE_TRACEPOINT, | |
3485 | }, | |
3486 | { | |
3487 | "helper access to adjusted map (via const imm): empty range", | |
3488 | .insns = { | |
3489 | BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), | |
3490 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8), | |
3491 | BPF_ST_MEM(BPF_DW, BPF_REG_2, 0, 0), | |
3492 | BPF_LD_MAP_FD(BPF_REG_1, 0), | |
3493 | BPF_EMIT_CALL(BPF_FUNC_map_lookup_elem), | |
3494 | BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 5), | |
3495 | BPF_MOV64_REG(BPF_REG_1, BPF_REG_0), | |
3496 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, | |
3497 | offsetof(struct test_val, foo)), | |
3498 | BPF_MOV64_IMM(BPF_REG_2, 0), | |
3499 | BPF_MOV64_IMM(BPF_REG_3, 0), | |
3500 | BPF_EMIT_CALL(BPF_FUNC_probe_read), | |
3501 | BPF_EXIT_INSN(), | |
3502 | }, | |
3503 | .fixup_map2 = { 3 }, | |
3504 | .errstr = "R1 min value is outside of the array range", | |
3505 | .result = REJECT, | |
3506 | .prog_type = BPF_PROG_TYPE_TRACEPOINT, | |
3507 | }, | |
3508 | { | |
3509 | "helper access to adjusted map (via const imm): out-of-bound range", | |
3510 | .insns = { | |
3511 | BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), | |
3512 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8), | |
3513 | BPF_ST_MEM(BPF_DW, BPF_REG_2, 0, 0), | |
3514 | BPF_LD_MAP_FD(BPF_REG_1, 0), | |
3515 | BPF_EMIT_CALL(BPF_FUNC_map_lookup_elem), | |
3516 | BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 5), | |
3517 | BPF_MOV64_REG(BPF_REG_1, BPF_REG_0), | |
3518 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, | |
3519 | offsetof(struct test_val, foo)), | |
3520 | BPF_MOV64_IMM(BPF_REG_2, | |
3521 | sizeof(struct test_val) - | |
3522 | offsetof(struct test_val, foo) + 8), | |
3523 | BPF_MOV64_IMM(BPF_REG_3, 0), | |
3524 | BPF_EMIT_CALL(BPF_FUNC_probe_read), | |
3525 | BPF_EXIT_INSN(), | |
3526 | }, | |
3527 | .fixup_map2 = { 3 }, | |
3528 | .errstr = "invalid access to map value, value_size=48 off=4 size=52", | |
3529 | .result = REJECT, | |
3530 | .prog_type = BPF_PROG_TYPE_TRACEPOINT, | |
3531 | }, | |
3532 | { | |
3533 | "helper access to adjusted map (via const imm): negative range (> adjustment)", | |
3534 | .insns = { | |
3535 | BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), | |
3536 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8), | |
3537 | BPF_ST_MEM(BPF_DW, BPF_REG_2, 0, 0), | |
3538 | BPF_LD_MAP_FD(BPF_REG_1, 0), | |
3539 | BPF_EMIT_CALL(BPF_FUNC_map_lookup_elem), | |
3540 | BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 5), | |
3541 | BPF_MOV64_REG(BPF_REG_1, BPF_REG_0), | |
3542 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, | |
3543 | offsetof(struct test_val, foo)), | |
3544 | BPF_MOV64_IMM(BPF_REG_2, -8), | |
3545 | BPF_MOV64_IMM(BPF_REG_3, 0), | |
3546 | BPF_EMIT_CALL(BPF_FUNC_probe_read), | |
3547 | BPF_EXIT_INSN(), | |
3548 | }, | |
3549 | .fixup_map2 = { 3 }, | |
3550 | .errstr = "invalid access to map value, value_size=48 off=4 size=-8", | |
3551 | .result = REJECT, | |
3552 | .prog_type = BPF_PROG_TYPE_TRACEPOINT, | |
3553 | }, | |
3554 | { | |
3555 | "helper access to adjusted map (via const imm): negative range (< adjustment)", | |
3556 | .insns = { | |
3557 | BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), | |
3558 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8), | |
3559 | BPF_ST_MEM(BPF_DW, BPF_REG_2, 0, 0), | |
3560 | BPF_LD_MAP_FD(BPF_REG_1, 0), | |
3561 | BPF_EMIT_CALL(BPF_FUNC_map_lookup_elem), | |
3562 | BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 5), | |
3563 | BPF_MOV64_REG(BPF_REG_1, BPF_REG_0), | |
3564 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, | |
3565 | offsetof(struct test_val, foo)), | |
3566 | BPF_MOV64_IMM(BPF_REG_2, -1), | |
3567 | BPF_MOV64_IMM(BPF_REG_3, 0), | |
3568 | BPF_EMIT_CALL(BPF_FUNC_probe_read), | |
3569 | BPF_EXIT_INSN(), | |
3570 | }, | |
3571 | .fixup_map2 = { 3 }, | |
3572 | .errstr = "R1 min value is outside of the array range", | |
3573 | .result = REJECT, | |
3574 | .prog_type = BPF_PROG_TYPE_TRACEPOINT, | |
3575 | }, | |
3576 | { | |
3577 | "helper access to adjusted map (via const reg): full range", | |
3578 | .insns = { | |
3579 | BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), | |
3580 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8), | |
3581 | BPF_ST_MEM(BPF_DW, BPF_REG_2, 0, 0), | |
3582 | BPF_LD_MAP_FD(BPF_REG_1, 0), | |
3583 | BPF_EMIT_CALL(BPF_FUNC_map_lookup_elem), | |
3584 | BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 6), | |
3585 | BPF_MOV64_REG(BPF_REG_1, BPF_REG_0), | |
3586 | BPF_MOV64_IMM(BPF_REG_3, | |
3587 | offsetof(struct test_val, foo)), | |
3588 | BPF_ALU64_REG(BPF_ADD, BPF_REG_1, BPF_REG_3), | |
3589 | BPF_MOV64_IMM(BPF_REG_2, | |
3590 | sizeof(struct test_val) - | |
3591 | offsetof(struct test_val, foo)), | |
3592 | BPF_MOV64_IMM(BPF_REG_3, 0), | |
3593 | BPF_EMIT_CALL(BPF_FUNC_probe_read), | |
3594 | BPF_EXIT_INSN(), | |
3595 | }, | |
3596 | .fixup_map2 = { 3 }, | |
3597 | .result = ACCEPT, | |
3598 | .prog_type = BPF_PROG_TYPE_TRACEPOINT, | |
3599 | }, | |
3600 | { | |
3601 | "helper access to adjusted map (via const reg): partial range", | |
3602 | .insns = { | |
3603 | BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), | |
3604 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8), | |
3605 | BPF_ST_MEM(BPF_DW, BPF_REG_2, 0, 0), | |
3606 | BPF_LD_MAP_FD(BPF_REG_1, 0), | |
3607 | BPF_EMIT_CALL(BPF_FUNC_map_lookup_elem), | |
3608 | BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 6), | |
3609 | BPF_MOV64_REG(BPF_REG_1, BPF_REG_0), | |
3610 | BPF_MOV64_IMM(BPF_REG_3, | |
3611 | offsetof(struct test_val, foo)), | |
3612 | BPF_ALU64_REG(BPF_ADD, BPF_REG_1, BPF_REG_3), | |
3613 | BPF_MOV64_IMM(BPF_REG_2, 8), | |
3614 | BPF_MOV64_IMM(BPF_REG_3, 0), | |
3615 | BPF_EMIT_CALL(BPF_FUNC_probe_read), | |
3616 | BPF_EXIT_INSN(), | |
3617 | }, | |
3618 | .fixup_map2 = { 3 }, | |
3619 | .result = ACCEPT, | |
3620 | .prog_type = BPF_PROG_TYPE_TRACEPOINT, | |
3621 | }, | |
3622 | { | |
3623 | "helper access to adjusted map (via const reg): empty range", | |
3624 | .insns = { | |
3625 | BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), | |
3626 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8), | |
3627 | BPF_ST_MEM(BPF_DW, BPF_REG_2, 0, 0), | |
3628 | BPF_LD_MAP_FD(BPF_REG_1, 0), | |
3629 | BPF_EMIT_CALL(BPF_FUNC_map_lookup_elem), | |
3630 | BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 6), | |
3631 | BPF_MOV64_REG(BPF_REG_1, BPF_REG_0), | |
3632 | BPF_MOV64_IMM(BPF_REG_3, 0), | |
3633 | BPF_ALU64_REG(BPF_ADD, BPF_REG_1, BPF_REG_3), | |
3634 | BPF_MOV64_IMM(BPF_REG_2, 0), | |
3635 | BPF_MOV64_IMM(BPF_REG_3, 0), | |
3636 | BPF_EMIT_CALL(BPF_FUNC_probe_read), | |
3637 | BPF_EXIT_INSN(), | |
3638 | }, | |
3639 | .fixup_map2 = { 3 }, | |
3640 | .errstr = "R1 min value is outside of the array range", | |
3641 | .result = REJECT, | |
3642 | .prog_type = BPF_PROG_TYPE_TRACEPOINT, | |
3643 | }, | |
3644 | { | |
3645 | "helper access to adjusted map (via const reg): out-of-bound range", | |
3646 | .insns = { | |
3647 | BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), | |
3648 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8), | |
3649 | BPF_ST_MEM(BPF_DW, BPF_REG_2, 0, 0), | |
3650 | BPF_LD_MAP_FD(BPF_REG_1, 0), | |
3651 | BPF_EMIT_CALL(BPF_FUNC_map_lookup_elem), | |
3652 | BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 6), | |
3653 | BPF_MOV64_REG(BPF_REG_1, BPF_REG_0), | |
3654 | BPF_MOV64_IMM(BPF_REG_3, | |
3655 | offsetof(struct test_val, foo)), | |
3656 | BPF_ALU64_REG(BPF_ADD, BPF_REG_1, BPF_REG_3), | |
3657 | BPF_MOV64_IMM(BPF_REG_2, | |
3658 | sizeof(struct test_val) - | |
3659 | offsetof(struct test_val, foo) + 8), | |
3660 | BPF_MOV64_IMM(BPF_REG_3, 0), | |
3661 | BPF_EMIT_CALL(BPF_FUNC_probe_read), | |
3662 | BPF_EXIT_INSN(), | |
3663 | }, | |
3664 | .fixup_map2 = { 3 }, | |
3665 | .errstr = "invalid access to map value, value_size=48 off=4 size=52", | |
3666 | .result = REJECT, | |
3667 | .prog_type = BPF_PROG_TYPE_TRACEPOINT, | |
3668 | }, | |
3669 | { | |
3670 | "helper access to adjusted map (via const reg): negative range (> adjustment)", | |
3671 | .insns = { | |
3672 | BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), | |
3673 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8), | |
3674 | BPF_ST_MEM(BPF_DW, BPF_REG_2, 0, 0), | |
3675 | BPF_LD_MAP_FD(BPF_REG_1, 0), | |
3676 | BPF_EMIT_CALL(BPF_FUNC_map_lookup_elem), | |
3677 | BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 6), | |
3678 | BPF_MOV64_REG(BPF_REG_1, BPF_REG_0), | |
3679 | BPF_MOV64_IMM(BPF_REG_3, | |
3680 | offsetof(struct test_val, foo)), | |
3681 | BPF_ALU64_REG(BPF_ADD, BPF_REG_1, BPF_REG_3), | |
3682 | BPF_MOV64_IMM(BPF_REG_2, -8), | |
3683 | BPF_MOV64_IMM(BPF_REG_3, 0), | |
3684 | BPF_EMIT_CALL(BPF_FUNC_probe_read), | |
3685 | BPF_EXIT_INSN(), | |
3686 | }, | |
3687 | .fixup_map2 = { 3 }, | |
3688 | .errstr = "invalid access to map value, value_size=48 off=4 size=-8", | |
3689 | .result = REJECT, | |
3690 | .prog_type = BPF_PROG_TYPE_TRACEPOINT, | |
3691 | }, | |
3692 | { | |
3693 | "helper access to adjusted map (via const reg): negative range (< adjustment)", | |
3694 | .insns = { | |
3695 | BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), | |
3696 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8), | |
3697 | BPF_ST_MEM(BPF_DW, BPF_REG_2, 0, 0), | |
3698 | BPF_LD_MAP_FD(BPF_REG_1, 0), | |
3699 | BPF_EMIT_CALL(BPF_FUNC_map_lookup_elem), | |
3700 | BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 6), | |
3701 | BPF_MOV64_REG(BPF_REG_1, BPF_REG_0), | |
3702 | BPF_MOV64_IMM(BPF_REG_3, | |
3703 | offsetof(struct test_val, foo)), | |
3704 | BPF_ALU64_REG(BPF_ADD, BPF_REG_1, BPF_REG_3), | |
3705 | BPF_MOV64_IMM(BPF_REG_2, -1), | |
3706 | BPF_MOV64_IMM(BPF_REG_3, 0), | |
3707 | BPF_EMIT_CALL(BPF_FUNC_probe_read), | |
3708 | BPF_EXIT_INSN(), | |
3709 | }, | |
3710 | .fixup_map2 = { 3 }, | |
3711 | .errstr = "R1 min value is outside of the array range", | |
3712 | .result = REJECT, | |
3713 | .prog_type = BPF_PROG_TYPE_TRACEPOINT, | |
3714 | }, | |
3715 | { | |
3716 | "helper access to adjusted map (via variable): full range", | |
3717 | .insns = { | |
3718 | BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), | |
3719 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8), | |
3720 | BPF_ST_MEM(BPF_DW, BPF_REG_2, 0, 0), | |
3721 | BPF_LD_MAP_FD(BPF_REG_1, 0), | |
3722 | BPF_EMIT_CALL(BPF_FUNC_map_lookup_elem), | |
3723 | BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 7), | |
3724 | BPF_MOV64_REG(BPF_REG_1, BPF_REG_0), | |
3725 | BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_0, 0), | |
3726 | BPF_JMP_IMM(BPF_JGT, BPF_REG_3, | |
3727 | offsetof(struct test_val, foo), 4), | |
3728 | BPF_ALU64_REG(BPF_ADD, BPF_REG_1, BPF_REG_3), | |
3729 | BPF_MOV64_IMM(BPF_REG_2, | |
3730 | sizeof(struct test_val) - | |
3731 | offsetof(struct test_val, foo)), | |
3732 | BPF_MOV64_IMM(BPF_REG_3, 0), | |
3733 | BPF_EMIT_CALL(BPF_FUNC_probe_read), | |
3734 | BPF_EXIT_INSN(), | |
3735 | }, | |
3736 | .fixup_map2 = { 3 }, | |
3737 | .result = ACCEPT, | |
3738 | .prog_type = BPF_PROG_TYPE_TRACEPOINT, | |
3739 | }, | |
3740 | { | |
3741 | "helper access to adjusted map (via variable): partial range", | |
3742 | .insns = { | |
3743 | BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), | |
3744 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8), | |
3745 | BPF_ST_MEM(BPF_DW, BPF_REG_2, 0, 0), | |
3746 | BPF_LD_MAP_FD(BPF_REG_1, 0), | |
3747 | BPF_EMIT_CALL(BPF_FUNC_map_lookup_elem), | |
3748 | BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 7), | |
3749 | BPF_MOV64_REG(BPF_REG_1, BPF_REG_0), | |
3750 | BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_0, 0), | |
3751 | BPF_JMP_IMM(BPF_JGT, BPF_REG_3, | |
3752 | offsetof(struct test_val, foo), 4), | |
3753 | BPF_ALU64_REG(BPF_ADD, BPF_REG_1, BPF_REG_3), | |
3754 | BPF_MOV64_IMM(BPF_REG_2, 8), | |
3755 | BPF_MOV64_IMM(BPF_REG_3, 0), | |
3756 | BPF_EMIT_CALL(BPF_FUNC_probe_read), | |
3757 | BPF_EXIT_INSN(), | |
3758 | }, | |
3759 | .fixup_map2 = { 3 }, | |
3760 | .result = ACCEPT, | |
3761 | .prog_type = BPF_PROG_TYPE_TRACEPOINT, | |
3762 | }, | |
3763 | { | |
3764 | "helper access to adjusted map (via variable): empty range", | |
3765 | .insns = { | |
3766 | BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), | |
3767 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8), | |
3768 | BPF_ST_MEM(BPF_DW, BPF_REG_2, 0, 0), | |
3769 | BPF_LD_MAP_FD(BPF_REG_1, 0), | |
3770 | BPF_EMIT_CALL(BPF_FUNC_map_lookup_elem), | |
3771 | BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 7), | |
3772 | BPF_MOV64_REG(BPF_REG_1, BPF_REG_0), | |
3773 | BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_0, 0), | |
3774 | BPF_JMP_IMM(BPF_JGT, BPF_REG_3, | |
3775 | offsetof(struct test_val, foo), 4), | |
3776 | BPF_ALU64_REG(BPF_ADD, BPF_REG_1, BPF_REG_3), | |
3777 | BPF_MOV64_IMM(BPF_REG_2, 0), | |
3778 | BPF_MOV64_IMM(BPF_REG_3, 0), | |
3779 | BPF_EMIT_CALL(BPF_FUNC_probe_read), | |
3780 | BPF_EXIT_INSN(), | |
3781 | }, | |
3782 | .fixup_map2 = { 3 }, | |
3783 | .errstr = "R1 min value is outside of the array range", | |
3784 | .result = REJECT, | |
3785 | .prog_type = BPF_PROG_TYPE_TRACEPOINT, | |
3786 | }, | |
3787 | { | |
3788 | "helper access to adjusted map (via variable): no max check", | |
3789 | .insns = { | |
3790 | BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), | |
3791 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8), | |
3792 | BPF_ST_MEM(BPF_DW, BPF_REG_2, 0, 0), | |
3793 | BPF_LD_MAP_FD(BPF_REG_1, 0), | |
3794 | BPF_EMIT_CALL(BPF_FUNC_map_lookup_elem), | |
3795 | BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 6), | |
3796 | BPF_MOV64_REG(BPF_REG_1, BPF_REG_0), | |
3797 | BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_0, 0), | |
3798 | BPF_ALU64_REG(BPF_ADD, BPF_REG_1, BPF_REG_3), | |
3799 | BPF_MOV64_IMM(BPF_REG_2, 0), | |
3800 | BPF_MOV64_IMM(BPF_REG_3, 0), | |
3801 | BPF_EMIT_CALL(BPF_FUNC_probe_read), | |
3802 | BPF_EXIT_INSN(), | |
3803 | }, | |
3804 | .fixup_map2 = { 3 }, | |
3805 | .errstr = "R1 min value is negative, either use unsigned index or do a if (index >=0) check", | |
3806 | .result = REJECT, | |
3807 | .prog_type = BPF_PROG_TYPE_TRACEPOINT, | |
3808 | }, | |
3809 | { | |
3810 | "helper access to adjusted map (via variable): wrong max check", | |
3811 | .insns = { | |
3812 | BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), | |
3813 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8), | |
3814 | BPF_ST_MEM(BPF_DW, BPF_REG_2, 0, 0), | |
3815 | BPF_LD_MAP_FD(BPF_REG_1, 0), | |
3816 | BPF_EMIT_CALL(BPF_FUNC_map_lookup_elem), | |
3817 | BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 7), | |
3818 | BPF_MOV64_REG(BPF_REG_1, BPF_REG_0), | |
3819 | BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_0, 0), | |
3820 | BPF_JMP_IMM(BPF_JGT, BPF_REG_3, | |
3821 | offsetof(struct test_val, foo), 4), | |
3822 | BPF_ALU64_REG(BPF_ADD, BPF_REG_1, BPF_REG_3), | |
3823 | BPF_MOV64_IMM(BPF_REG_2, | |
3824 | sizeof(struct test_val) - | |
3825 | offsetof(struct test_val, foo) + 1), | |
3826 | BPF_MOV64_IMM(BPF_REG_3, 0), | |
3827 | BPF_EMIT_CALL(BPF_FUNC_probe_read), | |
3828 | BPF_EXIT_INSN(), | |
3829 | }, | |
3830 | .fixup_map2 = { 3 }, | |
3831 | .errstr = "invalid access to map value, value_size=48 off=4 size=45", | |
3832 | .result = REJECT, | |
3833 | .prog_type = BPF_PROG_TYPE_TRACEPOINT, | |
3834 | }, | |
3835 | { | |
3836 | "map element value is preserved across register spilling", | |
3837 | .insns = { | |
3838 | BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), | |
3839 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8), | |
3840 | BPF_ST_MEM(BPF_DW, BPF_REG_2, 0, 0), | |
3841 | BPF_LD_MAP_FD(BPF_REG_1, 0), | |
3842 | BPF_EMIT_CALL(BPF_FUNC_map_lookup_elem), | |
3843 | BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 6), | |
3844 | BPF_ST_MEM(BPF_DW, BPF_REG_0, 0, 42), | |
3845 | BPF_MOV64_REG(BPF_REG_1, BPF_REG_10), | |
3846 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, -184), | |
3847 | BPF_STX_MEM(BPF_DW, BPF_REG_1, BPF_REG_0, 0), | |
3848 | BPF_LDX_MEM(BPF_DW, BPF_REG_3, BPF_REG_1, 0), | |
3849 | BPF_ST_MEM(BPF_DW, BPF_REG_3, 0, 42), | |
3850 | BPF_EXIT_INSN(), | |
3851 | }, | |
3852 | .fixup_map2 = { 3 }, | |
3853 | .errstr_unpriv = "R0 leaks addr", | |
3854 | .result = ACCEPT, | |
3855 | .result_unpriv = REJECT, | |
3856 | }, | |
3857 | { | |
3858 | "map element value (adjusted) is preserved across register spilling", | |
3859 | .insns = { | |
3860 | BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), | |
3861 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8), | |
3862 | BPF_ST_MEM(BPF_DW, BPF_REG_2, 0, 0), | |
3863 | BPF_LD_MAP_FD(BPF_REG_1, 0), | |
3864 | BPF_EMIT_CALL(BPF_FUNC_map_lookup_elem), | |
3865 | BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 7), | |
3866 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_0, | |
3867 | offsetof(struct test_val, foo)), | |
3868 | BPF_ST_MEM(BPF_DW, BPF_REG_0, 0, 42), | |
3869 | BPF_MOV64_REG(BPF_REG_1, BPF_REG_10), | |
3870 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, -184), | |
3871 | BPF_STX_MEM(BPF_DW, BPF_REG_1, BPF_REG_0, 0), | |
3872 | BPF_LDX_MEM(BPF_DW, BPF_REG_3, BPF_REG_1, 0), | |
3873 | BPF_ST_MEM(BPF_DW, BPF_REG_3, 0, 42), | |
3874 | BPF_EXIT_INSN(), | |
3875 | }, | |
3876 | .fixup_map2 = { 3 }, | |
3877 | .errstr_unpriv = "R0 pointer arithmetic prohibited", | |
3878 | .result = ACCEPT, | |
3879 | .result_unpriv = REJECT, | |
3880 | }, | |
3881 | { | |
3882 | "helper access to variable memory: stack, bitwise AND + JMP, correct bounds", | |
3883 | .insns = { | |
3884 | BPF_MOV64_REG(BPF_REG_1, BPF_REG_10), | |
3885 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, -64), | |
3886 | BPF_MOV64_IMM(BPF_REG_0, 0), | |
3887 | BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_0, -64), | |
3888 | BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_0, -56), | |
3889 | BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_0, -48), | |
3890 | BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_0, -40), | |
3891 | BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_0, -32), | |
3892 | BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_0, -24), | |
3893 | BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_0, -16), | |
3894 | BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_0, -8), | |
3895 | BPF_MOV64_IMM(BPF_REG_2, 16), | |
3896 | BPF_STX_MEM(BPF_DW, BPF_REG_1, BPF_REG_2, -128), | |
3897 | BPF_LDX_MEM(BPF_DW, BPF_REG_2, BPF_REG_1, -128), | |
3898 | BPF_ALU64_IMM(BPF_AND, BPF_REG_2, 64), | |
3899 | BPF_MOV64_IMM(BPF_REG_4, 0), | |
3900 | BPF_JMP_REG(BPF_JGE, BPF_REG_4, BPF_REG_2, 2), | |
3901 | BPF_MOV64_IMM(BPF_REG_3, 0), | |
3902 | BPF_EMIT_CALL(BPF_FUNC_probe_read), | |
3903 | BPF_MOV64_IMM(BPF_REG_0, 0), | |
3904 | BPF_EXIT_INSN(), | |
3905 | }, | |
3906 | .result = ACCEPT, | |
3907 | .prog_type = BPF_PROG_TYPE_TRACEPOINT, | |
3908 | }, | |
3909 | { | |
3910 | "helper access to variable memory: stack, bitwise AND, zero included", | |
3911 | .insns = { | |
3912 | BPF_MOV64_REG(BPF_REG_1, BPF_REG_10), | |
3913 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, -64), | |
3914 | BPF_MOV64_IMM(BPF_REG_2, 16), | |
3915 | BPF_STX_MEM(BPF_DW, BPF_REG_1, BPF_REG_2, -128), | |
3916 | BPF_LDX_MEM(BPF_DW, BPF_REG_2, BPF_REG_1, -128), | |
3917 | BPF_ALU64_IMM(BPF_AND, BPF_REG_2, 64), | |
3918 | BPF_MOV64_IMM(BPF_REG_3, 0), | |
3919 | BPF_EMIT_CALL(BPF_FUNC_probe_read), | |
3920 | BPF_EXIT_INSN(), | |
3921 | }, | |
3922 | .errstr = "invalid stack type R1 off=-64 access_size=0", | |
3923 | .result = REJECT, | |
3924 | .prog_type = BPF_PROG_TYPE_TRACEPOINT, | |
3925 | }, | |
3926 | { | |
3927 | "helper access to variable memory: stack, bitwise AND + JMP, wrong max", | |
3928 | .insns = { | |
3929 | BPF_MOV64_REG(BPF_REG_1, BPF_REG_10), | |
3930 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, -64), | |
3931 | BPF_MOV64_IMM(BPF_REG_2, 16), | |
3932 | BPF_STX_MEM(BPF_DW, BPF_REG_1, BPF_REG_2, -128), | |
3933 | BPF_LDX_MEM(BPF_DW, BPF_REG_2, BPF_REG_1, -128), | |
3934 | BPF_ALU64_IMM(BPF_AND, BPF_REG_2, 65), | |
3935 | BPF_MOV64_IMM(BPF_REG_4, 0), | |
3936 | BPF_JMP_REG(BPF_JGE, BPF_REG_4, BPF_REG_2, 2), | |
3937 | BPF_MOV64_IMM(BPF_REG_3, 0), | |
3938 | BPF_EMIT_CALL(BPF_FUNC_probe_read), | |
3939 | BPF_MOV64_IMM(BPF_REG_0, 0), | |
3940 | BPF_EXIT_INSN(), | |
3941 | }, | |
3942 | .errstr = "invalid stack type R1 off=-64 access_size=65", | |
3943 | .result = REJECT, | |
3944 | .prog_type = BPF_PROG_TYPE_TRACEPOINT, | |
3945 | }, | |
3946 | { | |
3947 | "helper access to variable memory: stack, JMP, correct bounds", | |
3948 | .insns = { | |
3949 | BPF_MOV64_REG(BPF_REG_1, BPF_REG_10), | |
3950 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, -64), | |
3951 | BPF_MOV64_IMM(BPF_REG_0, 0), | |
3952 | BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_0, -64), | |
3953 | BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_0, -56), | |
3954 | BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_0, -48), | |
3955 | BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_0, -40), | |
3956 | BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_0, -32), | |
3957 | BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_0, -24), | |
3958 | BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_0, -16), | |
3959 | BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_0, -8), | |
3960 | BPF_MOV64_IMM(BPF_REG_2, 16), | |
3961 | BPF_STX_MEM(BPF_DW, BPF_REG_1, BPF_REG_2, -128), | |
3962 | BPF_LDX_MEM(BPF_DW, BPF_REG_2, BPF_REG_1, -128), | |
3963 | BPF_JMP_IMM(BPF_JGT, BPF_REG_2, 64, 4), | |
3964 | BPF_MOV64_IMM(BPF_REG_4, 0), | |
3965 | BPF_JMP_REG(BPF_JGE, BPF_REG_4, BPF_REG_2, 2), | |
3966 | BPF_MOV64_IMM(BPF_REG_3, 0), | |
3967 | BPF_EMIT_CALL(BPF_FUNC_probe_read), | |
3968 | BPF_MOV64_IMM(BPF_REG_0, 0), | |
3969 | BPF_EXIT_INSN(), | |
3970 | }, | |
3971 | .result = ACCEPT, | |
3972 | .prog_type = BPF_PROG_TYPE_TRACEPOINT, | |
3973 | }, | |
3974 | { | |
3975 | "helper access to variable memory: stack, JMP (signed), correct bounds", | |
3976 | .insns = { | |
3977 | BPF_MOV64_REG(BPF_REG_1, BPF_REG_10), | |
3978 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, -64), | |
3979 | BPF_MOV64_IMM(BPF_REG_0, 0), | |
3980 | BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_0, -64), | |
3981 | BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_0, -56), | |
3982 | BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_0, -48), | |
3983 | BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_0, -40), | |
3984 | BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_0, -32), | |
3985 | BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_0, -24), | |
3986 | BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_0, -16), | |
3987 | BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_0, -8), | |
3988 | BPF_MOV64_IMM(BPF_REG_2, 16), | |
3989 | BPF_STX_MEM(BPF_DW, BPF_REG_1, BPF_REG_2, -128), | |
3990 | BPF_LDX_MEM(BPF_DW, BPF_REG_2, BPF_REG_1, -128), | |
3991 | BPF_JMP_IMM(BPF_JSGT, BPF_REG_2, 64, 4), | |
3992 | BPF_MOV64_IMM(BPF_REG_4, 0), | |
3993 | BPF_JMP_REG(BPF_JSGE, BPF_REG_4, BPF_REG_2, 2), | |
3994 | BPF_MOV64_IMM(BPF_REG_3, 0), | |
3995 | BPF_EMIT_CALL(BPF_FUNC_probe_read), | |
3996 | BPF_MOV64_IMM(BPF_REG_0, 0), | |
3997 | BPF_EXIT_INSN(), | |
3998 | }, | |
3999 | .result = ACCEPT, | |
4000 | .prog_type = BPF_PROG_TYPE_TRACEPOINT, | |
4001 | }, | |
4002 | { | |
4003 | "helper access to variable memory: stack, JMP, bounds + offset", | |
4004 | .insns = { | |
4005 | BPF_MOV64_REG(BPF_REG_1, BPF_REG_10), | |
4006 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, -64), | |
4007 | BPF_MOV64_IMM(BPF_REG_2, 16), | |
4008 | BPF_STX_MEM(BPF_DW, BPF_REG_1, BPF_REG_2, -128), | |
4009 | BPF_LDX_MEM(BPF_DW, BPF_REG_2, BPF_REG_1, -128), | |
4010 | BPF_JMP_IMM(BPF_JGT, BPF_REG_2, 64, 5), | |
4011 | BPF_MOV64_IMM(BPF_REG_4, 0), | |
4012 | BPF_JMP_REG(BPF_JGE, BPF_REG_4, BPF_REG_2, 3), | |
4013 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, 1), | |
4014 | BPF_MOV64_IMM(BPF_REG_3, 0), | |
4015 | BPF_EMIT_CALL(BPF_FUNC_probe_read), | |
4016 | BPF_MOV64_IMM(BPF_REG_0, 0), | |
4017 | BPF_EXIT_INSN(), | |
4018 | }, | |
4019 | .errstr = "invalid stack type R1 off=-64 access_size=65", | |
4020 | .result = REJECT, | |
4021 | .prog_type = BPF_PROG_TYPE_TRACEPOINT, | |
4022 | }, | |
4023 | { | |
4024 | "helper access to variable memory: stack, JMP, wrong max", | |
4025 | .insns = { | |
4026 | BPF_MOV64_REG(BPF_REG_1, BPF_REG_10), | |
4027 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, -64), | |
4028 | BPF_MOV64_IMM(BPF_REG_2, 16), | |
4029 | BPF_STX_MEM(BPF_DW, BPF_REG_1, BPF_REG_2, -128), | |
4030 | BPF_LDX_MEM(BPF_DW, BPF_REG_2, BPF_REG_1, -128), | |
4031 | BPF_JMP_IMM(BPF_JGT, BPF_REG_2, 65, 4), | |
4032 | BPF_MOV64_IMM(BPF_REG_4, 0), | |
4033 | BPF_JMP_REG(BPF_JGE, BPF_REG_4, BPF_REG_2, 2), | |
4034 | BPF_MOV64_IMM(BPF_REG_3, 0), | |
4035 | BPF_EMIT_CALL(BPF_FUNC_probe_read), | |
4036 | BPF_MOV64_IMM(BPF_REG_0, 0), | |
4037 | BPF_EXIT_INSN(), | |
4038 | }, | |
4039 | .errstr = "invalid stack type R1 off=-64 access_size=65", | |
4040 | .result = REJECT, | |
4041 | .prog_type = BPF_PROG_TYPE_TRACEPOINT, | |
4042 | }, | |
4043 | { | |
4044 | "helper access to variable memory: stack, JMP, no max check", | |
4045 | .insns = { | |
4046 | BPF_MOV64_REG(BPF_REG_1, BPF_REG_10), | |
4047 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, -64), | |
4048 | BPF_MOV64_IMM(BPF_REG_2, 16), | |
4049 | BPF_STX_MEM(BPF_DW, BPF_REG_1, BPF_REG_2, -128), | |
4050 | BPF_LDX_MEM(BPF_DW, BPF_REG_2, BPF_REG_1, -128), | |
4051 | BPF_MOV64_IMM(BPF_REG_4, 0), | |
4052 | BPF_JMP_REG(BPF_JGE, BPF_REG_4, BPF_REG_2, 2), | |
4053 | BPF_MOV64_IMM(BPF_REG_3, 0), | |
4054 | BPF_EMIT_CALL(BPF_FUNC_probe_read), | |
4055 | BPF_MOV64_IMM(BPF_REG_0, 0), | |
4056 | BPF_EXIT_INSN(), | |
4057 | }, | |
4058 | .errstr = "R2 unbounded memory access", | |
4059 | .result = REJECT, | |
4060 | .prog_type = BPF_PROG_TYPE_TRACEPOINT, | |
4061 | }, | |
4062 | { | |
4063 | "helper access to variable memory: stack, JMP, no min check", | |
4064 | .insns = { | |
4065 | BPF_MOV64_REG(BPF_REG_1, BPF_REG_10), | |
4066 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, -64), | |
4067 | BPF_MOV64_IMM(BPF_REG_2, 16), | |
4068 | BPF_STX_MEM(BPF_DW, BPF_REG_1, BPF_REG_2, -128), | |
4069 | BPF_LDX_MEM(BPF_DW, BPF_REG_2, BPF_REG_1, -128), | |
4070 | BPF_JMP_IMM(BPF_JGT, BPF_REG_2, 64, 3), | |
4071 | BPF_MOV64_IMM(BPF_REG_3, 0), | |
4072 | BPF_EMIT_CALL(BPF_FUNC_probe_read), | |
4073 | BPF_MOV64_IMM(BPF_REG_0, 0), | |
4074 | BPF_EXIT_INSN(), | |
4075 | }, | |
4076 | .errstr = "invalid stack type R1 off=-64 access_size=0", | |
4077 | .result = REJECT, | |
4078 | .prog_type = BPF_PROG_TYPE_TRACEPOINT, | |
4079 | }, | |
4080 | { | |
4081 | "helper access to variable memory: stack, JMP (signed), no min check", | |
4082 | .insns = { | |
4083 | BPF_MOV64_REG(BPF_REG_1, BPF_REG_10), | |
4084 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, -64), | |
4085 | BPF_MOV64_IMM(BPF_REG_2, 16), | |
4086 | BPF_STX_MEM(BPF_DW, BPF_REG_1, BPF_REG_2, -128), | |
4087 | BPF_LDX_MEM(BPF_DW, BPF_REG_2, BPF_REG_1, -128), | |
4088 | BPF_JMP_IMM(BPF_JSGT, BPF_REG_2, 64, 3), | |
4089 | BPF_MOV64_IMM(BPF_REG_3, 0), | |
4090 | BPF_EMIT_CALL(BPF_FUNC_probe_read), | |
4091 | BPF_MOV64_IMM(BPF_REG_0, 0), | |
4092 | BPF_EXIT_INSN(), | |
4093 | }, | |
4094 | .errstr = "R2 min value is negative", | |
4095 | .result = REJECT, | |
4096 | .prog_type = BPF_PROG_TYPE_TRACEPOINT, | |
4097 | }, | |
4098 | { | |
4099 | "helper access to variable memory: map, JMP, correct bounds", | |
4100 | .insns = { | |
4101 | BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), | |
4102 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8), | |
4103 | BPF_ST_MEM(BPF_DW, BPF_REG_2, 0, 0), | |
4104 | BPF_LD_MAP_FD(BPF_REG_1, 0), | |
4105 | BPF_EMIT_CALL(BPF_FUNC_map_lookup_elem), | |
4106 | BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 10), | |
4107 | BPF_MOV64_REG(BPF_REG_1, BPF_REG_0), | |
4108 | BPF_MOV64_IMM(BPF_REG_2, sizeof(struct test_val)), | |
4109 | BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_2, -128), | |
4110 | BPF_LDX_MEM(BPF_DW, BPF_REG_2, BPF_REG_10, -128), | |
4111 | BPF_JMP_IMM(BPF_JSGT, BPF_REG_2, | |
4112 | sizeof(struct test_val), 4), | |
4113 | BPF_MOV64_IMM(BPF_REG_4, 0), | |
4114 | BPF_JMP_REG(BPF_JGE, BPF_REG_4, BPF_REG_2, 2), | |
4115 | BPF_MOV64_IMM(BPF_REG_3, 0), | |
4116 | BPF_EMIT_CALL(BPF_FUNC_probe_read), | |
4117 | BPF_MOV64_IMM(BPF_REG_0, 0), | |
4118 | BPF_EXIT_INSN(), | |
4119 | }, | |
4120 | .fixup_map2 = { 3 }, | |
4121 | .result = ACCEPT, | |
4122 | .prog_type = BPF_PROG_TYPE_TRACEPOINT, | |
4123 | }, | |
4124 | { | |
4125 | "helper access to variable memory: map, JMP, wrong max", | |
4126 | .insns = { | |
4127 | BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), | |
4128 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8), | |
4129 | BPF_ST_MEM(BPF_DW, BPF_REG_2, 0, 0), | |
4130 | BPF_LD_MAP_FD(BPF_REG_1, 0), | |
4131 | BPF_EMIT_CALL(BPF_FUNC_map_lookup_elem), | |
4132 | BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 10), | |
4133 | BPF_MOV64_REG(BPF_REG_1, BPF_REG_0), | |
4134 | BPF_MOV64_IMM(BPF_REG_2, sizeof(struct test_val)), | |
4135 | BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_2, -128), | |
4136 | BPF_LDX_MEM(BPF_DW, BPF_REG_2, BPF_REG_10, -128), | |
4137 | BPF_JMP_IMM(BPF_JSGT, BPF_REG_2, | |
4138 | sizeof(struct test_val) + 1, 4), | |
4139 | BPF_MOV64_IMM(BPF_REG_4, 0), | |
4140 | BPF_JMP_REG(BPF_JGE, BPF_REG_4, BPF_REG_2, 2), | |
4141 | BPF_MOV64_IMM(BPF_REG_3, 0), | |
4142 | BPF_EMIT_CALL(BPF_FUNC_probe_read), | |
4143 | BPF_MOV64_IMM(BPF_REG_0, 0), | |
4144 | BPF_EXIT_INSN(), | |
4145 | }, | |
4146 | .fixup_map2 = { 3 }, | |
4147 | .errstr = "invalid access to map value, value_size=48 off=0 size=49", | |
4148 | .result = REJECT, | |
4149 | .prog_type = BPF_PROG_TYPE_TRACEPOINT, | |
4150 | }, | |
4151 | { | |
4152 | "helper access to variable memory: map adjusted, JMP, correct bounds", | |
4153 | .insns = { | |
4154 | BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), | |
4155 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8), | |
4156 | BPF_ST_MEM(BPF_DW, BPF_REG_2, 0, 0), | |
4157 | BPF_LD_MAP_FD(BPF_REG_1, 0), | |
4158 | BPF_EMIT_CALL(BPF_FUNC_map_lookup_elem), | |
4159 | BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 11), | |
4160 | BPF_MOV64_REG(BPF_REG_1, BPF_REG_0), | |
4161 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, 20), | |
4162 | BPF_MOV64_IMM(BPF_REG_2, sizeof(struct test_val)), | |
4163 | BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_2, -128), | |
4164 | BPF_LDX_MEM(BPF_DW, BPF_REG_2, BPF_REG_10, -128), | |
4165 | BPF_JMP_IMM(BPF_JSGT, BPF_REG_2, | |
4166 | sizeof(struct test_val) - 20, 4), | |
4167 | BPF_MOV64_IMM(BPF_REG_4, 0), | |
4168 | BPF_JMP_REG(BPF_JGE, BPF_REG_4, BPF_REG_2, 2), | |
4169 | BPF_MOV64_IMM(BPF_REG_3, 0), | |
4170 | BPF_EMIT_CALL(BPF_FUNC_probe_read), | |
4171 | BPF_MOV64_IMM(BPF_REG_0, 0), | |
4172 | BPF_EXIT_INSN(), | |
4173 | }, | |
4174 | .fixup_map2 = { 3 }, | |
4175 | .result = ACCEPT, | |
4176 | .prog_type = BPF_PROG_TYPE_TRACEPOINT, | |
4177 | }, | |
4178 | { | |
4179 | "helper access to variable memory: map adjusted, JMP, wrong max", | |
4180 | .insns = { | |
4181 | BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), | |
4182 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8), | |
4183 | BPF_ST_MEM(BPF_DW, BPF_REG_2, 0, 0), | |
4184 | BPF_LD_MAP_FD(BPF_REG_1, 0), | |
4185 | BPF_EMIT_CALL(BPF_FUNC_map_lookup_elem), | |
4186 | BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 11), | |
4187 | BPF_MOV64_REG(BPF_REG_1, BPF_REG_0), | |
4188 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, 20), | |
4189 | BPF_MOV64_IMM(BPF_REG_2, sizeof(struct test_val)), | |
4190 | BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_2, -128), | |
4191 | BPF_LDX_MEM(BPF_DW, BPF_REG_2, BPF_REG_10, -128), | |
4192 | BPF_JMP_IMM(BPF_JSGT, BPF_REG_2, | |
4193 | sizeof(struct test_val) - 19, 4), | |
4194 | BPF_MOV64_IMM(BPF_REG_4, 0), | |
4195 | BPF_JMP_REG(BPF_JGE, BPF_REG_4, BPF_REG_2, 2), | |
4196 | BPF_MOV64_IMM(BPF_REG_3, 0), | |
4197 | BPF_EMIT_CALL(BPF_FUNC_probe_read), | |
4198 | BPF_MOV64_IMM(BPF_REG_0, 0), | |
4199 | BPF_EXIT_INSN(), | |
4200 | }, | |
4201 | .fixup_map2 = { 3 }, | |
4202 | .errstr = "R1 min value is outside of the array range", | |
4203 | .result = REJECT, | |
4204 | .prog_type = BPF_PROG_TYPE_TRACEPOINT, | |
4205 | }, | |
4206 | { | |
4207 | "helper access to variable memory: size > 0 not allowed on NULL", | |
4208 | .insns = { | |
4209 | BPF_MOV64_IMM(BPF_REG_1, 0), | |
4210 | BPF_MOV64_IMM(BPF_REG_2, 0), | |
4211 | BPF_ALU64_IMM(BPF_AND, BPF_REG_2, 64), | |
4212 | BPF_MOV64_IMM(BPF_REG_3, 0), | |
4213 | BPF_MOV64_IMM(BPF_REG_4, 0), | |
4214 | BPF_MOV64_IMM(BPF_REG_5, 0), | |
4215 | BPF_EMIT_CALL(BPF_FUNC_csum_diff), | |
4216 | BPF_EXIT_INSN(), | |
4217 | }, | |
4218 | .errstr = "R1 type=imm expected=fp", | |
4219 | .result = REJECT, | |
4220 | .prog_type = BPF_PROG_TYPE_SCHED_CLS, | |
4221 | }, | |
4222 | { | |
4223 | "helper access to variable memory: size = 0 not allowed on != NULL", | |
4224 | .insns = { | |
4225 | BPF_MOV64_REG(BPF_REG_1, BPF_REG_10), | |
4226 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, -8), | |
4227 | BPF_MOV64_IMM(BPF_REG_2, 0), | |
4228 | BPF_STX_MEM(BPF_DW, BPF_REG_1, BPF_REG_2, 0), | |
4229 | BPF_ALU64_IMM(BPF_AND, BPF_REG_2, 8), | |
4230 | BPF_MOV64_IMM(BPF_REG_3, 0), | |
4231 | BPF_MOV64_IMM(BPF_REG_4, 0), | |
4232 | BPF_MOV64_IMM(BPF_REG_5, 0), | |
4233 | BPF_EMIT_CALL(BPF_FUNC_csum_diff), | |
4234 | BPF_EXIT_INSN(), | |
4235 | }, | |
4236 | .errstr = "invalid stack type R1 off=-8 access_size=0", | |
4237 | .result = REJECT, | |
4238 | .prog_type = BPF_PROG_TYPE_SCHED_CLS, | |
4239 | }, | |
4240 | { | |
4241 | "helper access to variable memory: 8 bytes leak", | |
4242 | .insns = { | |
4243 | BPF_MOV64_REG(BPF_REG_1, BPF_REG_10), | |
4244 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, -64), | |
4245 | BPF_MOV64_IMM(BPF_REG_0, 0), | |
4246 | BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_0, -64), | |
4247 | BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_0, -56), | |
4248 | BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_0, -48), | |
4249 | BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_0, -40), | |
4250 | BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_0, -24), | |
4251 | BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_0, -16), | |
4252 | BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_0, -8), | |
4253 | BPF_MOV64_IMM(BPF_REG_2, 0), | |
4254 | BPF_ALU64_IMM(BPF_AND, BPF_REG_2, 63), | |
4255 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, 1), | |
4256 | BPF_MOV64_IMM(BPF_REG_3, 0), | |
4257 | BPF_EMIT_CALL(BPF_FUNC_probe_read), | |
4258 | BPF_LDX_MEM(BPF_DW, BPF_REG_1, BPF_REG_10, -16), | |
4259 | BPF_EXIT_INSN(), | |
4260 | }, | |
4261 | .errstr = "invalid indirect read from stack off -64+32 size 64", | |
4262 | .result = REJECT, | |
4263 | .prog_type = BPF_PROG_TYPE_TRACEPOINT, | |
4264 | }, | |
4265 | { | |
4266 | "helper access to variable memory: 8 bytes no leak (init memory)", | |
4267 | .insns = { | |
4268 | BPF_MOV64_REG(BPF_REG_1, BPF_REG_10), | |
4269 | BPF_MOV64_IMM(BPF_REG_0, 0), | |
4270 | BPF_MOV64_IMM(BPF_REG_0, 0), | |
4271 | BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_0, -64), | |
4272 | BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_0, -56), | |
4273 | BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_0, -48), | |
4274 | BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_0, -40), | |
4275 | BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_0, -32), | |
4276 | BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_0, -24), | |
4277 | BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_0, -16), | |
4278 | BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_0, -8), | |
4279 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, -64), | |
4280 | BPF_MOV64_IMM(BPF_REG_2, 0), | |
4281 | BPF_ALU64_IMM(BPF_AND, BPF_REG_2, 32), | |
4282 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, 32), | |
4283 | BPF_MOV64_IMM(BPF_REG_3, 0), | |
4284 | BPF_EMIT_CALL(BPF_FUNC_probe_read), | |
4285 | BPF_LDX_MEM(BPF_DW, BPF_REG_1, BPF_REG_10, -16), | |
4286 | BPF_EXIT_INSN(), | |
4287 | }, | |
4288 | .result = ACCEPT, | |
4289 | .prog_type = BPF_PROG_TYPE_TRACEPOINT, | |
4290 | }, | |
4291 | }; | |
4292 | ||
4293 | static int probe_filter_length(const struct bpf_insn *fp) | |
4294 | { | |
4295 | int len; | |
4296 | ||
4297 | for (len = MAX_INSNS - 1; len > 0; --len) | |
4298 | if (fp[len].code != 0 || fp[len].imm != 0) | |
4299 | break; | |
4300 | return len + 1; | |
4301 | } | |
4302 | ||
4303 | static int create_map(uint32_t size_value, uint32_t max_elem) | |
4304 | { | |
4305 | int fd; | |
4306 | ||
4307 | fd = bpf_map_create(BPF_MAP_TYPE_HASH, sizeof(long long), | |
4308 | size_value, max_elem, BPF_F_NO_PREALLOC); | |
4309 | if (fd < 0) | |
4310 | printf("Failed to create hash map '%s'!\n", strerror(errno)); | |
4311 | ||
4312 | return fd; | |
4313 | } | |
4314 | ||
4315 | static int create_prog_array(void) | |
4316 | { | |
4317 | int fd; | |
4318 | ||
4319 | fd = bpf_map_create(BPF_MAP_TYPE_PROG_ARRAY, sizeof(int), | |
4320 | sizeof(int), 4, 0); | |
4321 | if (fd < 0) | |
4322 | printf("Failed to create prog array '%s'!\n", strerror(errno)); | |
4323 | ||
4324 | return fd; | |
4325 | } | |
4326 | ||
4327 | static char bpf_vlog[32768]; | |
4328 | ||
4329 | static void do_test_fixup(struct bpf_test *test, struct bpf_insn *prog, | |
4330 | int *fd_f1, int *fd_f2, int *fd_f3) | |
4331 | { | |
4332 | int *fixup_map1 = test->fixup_map1; | |
4333 | int *fixup_map2 = test->fixup_map2; | |
4334 | int *fixup_prog = test->fixup_prog; | |
4335 | ||
4336 | /* Allocating HTs with 1 elem is fine here, since we only test | |
4337 | * for verifier and not do a runtime lookup, so the only thing | |
4338 | * that really matters is value size in this case. | |
4339 | */ | |
4340 | if (*fixup_map1) { | |
4341 | *fd_f1 = create_map(sizeof(long long), 1); | |
4342 | do { | |
4343 | prog[*fixup_map1].imm = *fd_f1; | |
4344 | fixup_map1++; | |
4345 | } while (*fixup_map1); | |
4346 | } | |
4347 | ||
4348 | if (*fixup_map2) { | |
4349 | *fd_f2 = create_map(sizeof(struct test_val), 1); | |
4350 | do { | |
4351 | prog[*fixup_map2].imm = *fd_f2; | |
4352 | fixup_map2++; | |
4353 | } while (*fixup_map2); | |
4354 | } | |
4355 | ||
4356 | if (*fixup_prog) { | |
4357 | *fd_f3 = create_prog_array(); | |
4358 | do { | |
4359 | prog[*fixup_prog].imm = *fd_f3; | |
4360 | fixup_prog++; | |
4361 | } while (*fixup_prog); | |
4362 | } | |
4363 | } | |
4364 | ||
4365 | static void do_test_single(struct bpf_test *test, bool unpriv, | |
4366 | int *passes, int *errors) | |
4367 | { | |
4368 | struct bpf_insn *prog = test->insns; | |
4369 | int prog_len = probe_filter_length(prog); | |
4370 | int prog_type = test->prog_type; | |
4371 | int fd_f1 = -1, fd_f2 = -1, fd_f3 = -1; | |
4372 | int fd_prog, expected_ret; | |
4373 | const char *expected_err; | |
4374 | ||
4375 | do_test_fixup(test, prog, &fd_f1, &fd_f2, &fd_f3); | |
4376 | ||
4377 | fd_prog = bpf_prog_load(prog_type ? : BPF_PROG_TYPE_SOCKET_FILTER, | |
4378 | prog, prog_len * sizeof(struct bpf_insn), | |
4379 | "GPL", bpf_vlog, sizeof(bpf_vlog)); | |
4380 | ||
4381 | expected_ret = unpriv && test->result_unpriv != UNDEF ? | |
4382 | test->result_unpriv : test->result; | |
4383 | expected_err = unpriv && test->errstr_unpriv ? | |
4384 | test->errstr_unpriv : test->errstr; | |
4385 | if (expected_ret == ACCEPT) { | |
4386 | if (fd_prog < 0) { | |
4387 | printf("FAIL\nFailed to load prog '%s'!\n", | |
4388 | strerror(errno)); | |
4389 | goto fail_log; | |
4390 | } | |
4391 | } else { | |
4392 | if (fd_prog >= 0) { | |
4393 | printf("FAIL\nUnexpected success to load!\n"); | |
4394 | goto fail_log; | |
4395 | } | |
4396 | if (!strstr(bpf_vlog, expected_err)) { | |
4397 | printf("FAIL\nUnexpected error message!\n"); | |
4398 | goto fail_log; | |
4399 | } | |
4400 | } | |
4401 | ||
4402 | (*passes)++; | |
4403 | printf("OK\n"); | |
4404 | close_fds: | |
4405 | close(fd_prog); | |
4406 | close(fd_f1); | |
4407 | close(fd_f2); | |
4408 | close(fd_f3); | |
4409 | sched_yield(); | |
4410 | return; | |
4411 | fail_log: | |
4412 | (*errors)++; | |
4413 | printf("%s", bpf_vlog); | |
4414 | goto close_fds; | |
4415 | } | |
4416 | ||
4417 | static int do_test(bool unpriv, unsigned int from, unsigned int to) | |
4418 | { | |
4419 | int i, passes = 0, errors = 0; | |
4420 | ||
4421 | for (i = from; i < to; i++) { | |
4422 | struct bpf_test *test = &tests[i]; | |
4423 | ||
4424 | /* Program types that are not supported by non-root we | |
4425 | * skip right away. | |
4426 | */ | |
4427 | if (unpriv && test->prog_type) | |
4428 | continue; | |
4429 | ||
4430 | printf("#%d %s ", i, test->descr); | |
4431 | do_test_single(test, unpriv, &passes, &errors); | |
4432 | } | |
4433 | ||
4434 | printf("Summary: %d PASSED, %d FAILED\n", passes, errors); | |
4435 | return errors ? -errors : 0; | |
4436 | } | |
4437 | ||
4438 | int main(int argc, char **argv) | |
4439 | { | |
4440 | struct rlimit rinf = { RLIM_INFINITY, RLIM_INFINITY }; | |
4441 | struct rlimit rlim = { 1 << 20, 1 << 20 }; | |
4442 | unsigned int from = 0, to = ARRAY_SIZE(tests); | |
4443 | bool unpriv = geteuid() != 0; | |
4444 | ||
4445 | if (argc == 3) { | |
4446 | unsigned int l = atoi(argv[argc - 2]); | |
4447 | unsigned int u = atoi(argv[argc - 1]); | |
4448 | ||
4449 | if (l < to && u < to) { | |
4450 | from = l; | |
4451 | to = u + 1; | |
4452 | } | |
4453 | } else if (argc == 2) { | |
4454 | unsigned int t = atoi(argv[argc - 1]); | |
4455 | ||
4456 | if (t < to) { | |
4457 | from = t; | |
4458 | to = t + 1; | |
4459 | } | |
4460 | } | |
4461 | ||
4462 | setrlimit(RLIMIT_MEMLOCK, unpriv ? &rlim : &rinf); | |
4463 | return do_test(unpriv, from, to); | |
4464 | } |