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Commit | Line | Data |
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3c731eba AS |
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 | */ | |
5aa5bd14 | 10 | |
3c731eba AS |
11 | #include <stdio.h> |
12 | #include <unistd.h> | |
3c731eba | 13 | #include <errno.h> |
3c731eba | 14 | #include <string.h> |
614cd3bd | 15 | #include <stddef.h> |
bf508877 | 16 | #include <stdbool.h> |
5aa5bd14 DB |
17 | #include <sched.h> |
18 | ||
bf508877 | 19 | #include <sys/resource.h> |
3c731eba | 20 | |
5aa5bd14 DB |
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 | |
3c731eba | 33 | |
5aa5bd14 DB |
34 | #define MAX_INSNS 512 |
35 | #define MAX_FIXUPS 8 | |
bf508877 | 36 | |
3c731eba AS |
37 | struct bpf_test { |
38 | const char *descr; | |
39 | struct bpf_insn insns[MAX_INSNS]; | |
5aa5bd14 DB |
40 | int fixup_map1[MAX_FIXUPS]; |
41 | int fixup_map2[MAX_FIXUPS]; | |
42 | int fixup_prog[MAX_FIXUPS]; | |
3c731eba | 43 | const char *errstr; |
bf508877 | 44 | const char *errstr_unpriv; |
3c731eba | 45 | enum { |
bf508877 | 46 | UNDEF, |
3c731eba AS |
47 | ACCEPT, |
48 | REJECT | |
bf508877 | 49 | } result, result_unpriv; |
d691f9e8 | 50 | enum bpf_prog_type prog_type; |
3c731eba AS |
51 | }; |
52 | ||
48461135 JB |
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 | |
5aa5bd14 | 57 | |
48461135 | 58 | struct test_val { |
5aa5bd14 | 59 | unsigned int index; |
48461135 JB |
60 | int foo[MAX_ENTRIES]; |
61 | }; | |
62 | ||
3c731eba AS |
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", | |
bf508877 | 127 | .errstr_unpriv = "R1 pointer comparison", |
3c731eba AS |
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", | |
bf508877 | 141 | .errstr_unpriv = "R1 pointer comparison", |
3c731eba AS |
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 | }, | |
32bf08a6 AS |
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", | |
bf508877 | 252 | .errstr_unpriv = "R1 pointer comparison", |
32bf08a6 AS |
253 | .result = REJECT, |
254 | }, | |
3c731eba AS |
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 | }, | |
e00c7b21 | 288 | .errstr = "invalid func unknown#1234567", |
3c731eba AS |
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), | |
5aa5bd14 DB |
297 | BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, |
298 | BPF_FUNC_map_lookup_elem), | |
3c731eba AS |
299 | BPF_EXIT_INSN(), |
300 | }, | |
5aa5bd14 | 301 | .fixup_map1 = { 2 }, |
3c731eba AS |
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 | }, | |
7d95b0ab DB |
315 | { |
316 | "invalid argument register", | |
317 | .insns = { | |
5aa5bd14 DB |
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), | |
7d95b0ab DB |
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), | |
5aa5bd14 DB |
332 | BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, |
333 | BPF_FUNC_get_cgroup_classid), | |
7d95b0ab | 334 | BPF_ALU64_REG(BPF_MOV, BPF_REG_1, BPF_REG_6), |
5aa5bd14 DB |
335 | BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, |
336 | BPF_FUNC_get_cgroup_classid), | |
7d95b0ab DB |
337 | BPF_EXIT_INSN(), |
338 | }, | |
339 | .result = ACCEPT, | |
340 | .prog_type = BPF_PROG_TYPE_SCHED_CLS, | |
341 | }, | |
3c731eba AS |
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), | |
3c731eba AS |
347 | /* fill it back into R2 */ |
348 | BPF_LDX_MEM(BPF_DW, BPF_REG_2, BPF_REG_10, -8), | |
3c731eba | 349 | /* should be able to access R0 = *(R2 + 8) */ |
f91fe17e DB |
350 | /* BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_2, 8), */ |
351 | BPF_MOV64_REG(BPF_REG_0, BPF_REG_2), | |
3c731eba AS |
352 | BPF_EXIT_INSN(), |
353 | }, | |
bf508877 | 354 | .errstr_unpriv = "R0 leaks addr", |
3c731eba | 355 | .result = ACCEPT, |
bf508877 | 356 | .result_unpriv = REJECT, |
3c731eba | 357 | }, |
3f2050e2 DB |
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 | }, | |
3c731eba AS |
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), | |
3c731eba AS |
376 | /* mess up with R1 pointer on stack */ |
377 | BPF_ST_MEM(BPF_B, BPF_REG_10, -7, 0x23), | |
3c731eba AS |
378 | /* fill back into R0 should fail */ |
379 | BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_10, -8), | |
3c731eba AS |
380 | BPF_EXIT_INSN(), |
381 | }, | |
bf508877 | 382 | .errstr_unpriv = "attempt to corrupt spilled", |
3c731eba AS |
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), | |
5aa5bd14 DB |
493 | BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, |
494 | BPF_FUNC_map_delete_elem), | |
3c731eba AS |
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), | |
5aa5bd14 DB |
507 | BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, |
508 | BPF_FUNC_map_lookup_elem), | |
3c731eba AS |
509 | BPF_ST_MEM(BPF_DW, BPF_REG_0, 0, 0), |
510 | BPF_EXIT_INSN(), | |
511 | }, | |
5aa5bd14 | 512 | .fixup_map1 = { 3 }, |
3c731eba AS |
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), | |
5aa5bd14 DB |
523 | BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, |
524 | BPF_FUNC_map_lookup_elem), | |
3c731eba AS |
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 | }, | |
5aa5bd14 | 529 | .fixup_map1 = { 3 }, |
3c731eba AS |
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), | |
5aa5bd14 DB |
540 | BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, |
541 | BPF_FUNC_map_lookup_elem), | |
3c731eba AS |
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 | }, | |
5aa5bd14 | 548 | .fixup_map1 = { 3 }, |
3c731eba | 549 | .errstr = "R0 invalid mem access", |
bf508877 | 550 | .errstr_unpriv = "R0 leaks addr", |
3c731eba AS |
551 | .result = REJECT, |
552 | }, | |
fd10c2ef AS |
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 | }, | |
bf508877 AS |
573 | .errstr_unpriv = "R1 pointer comparison", |
574 | .result_unpriv = REJECT, | |
fd10c2ef AS |
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 | }, | |
bf508877 AS |
601 | .errstr_unpriv = "R1 pointer comparison", |
602 | .result_unpriv = REJECT, | |
fd10c2ef AS |
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), | |
5aa5bd14 DB |
633 | BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, |
634 | BPF_FUNC_map_delete_elem), | |
fd10c2ef AS |
635 | BPF_EXIT_INSN(), |
636 | }, | |
5aa5bd14 | 637 | .fixup_map1 = { 24 }, |
bf508877 AS |
638 | .errstr_unpriv = "R1 pointer comparison", |
639 | .result_unpriv = REJECT, | |
fd10c2ef AS |
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 | }, | |
bf508877 AS |
688 | .errstr_unpriv = "R1 pointer comparison", |
689 | .result_unpriv = REJECT, | |
fd10c2ef AS |
690 | .result = ACCEPT, |
691 | }, | |
342ded40 AS |
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 | }, | |
bf508877 AS |
729 | .errstr_unpriv = "R1 pointer comparison", |
730 | .result_unpriv = REJECT, | |
342ded40 AS |
731 | .result = ACCEPT, |
732 | }, | |
614cd3bd AS |
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), | |
c2497395 AS |
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), | |
614cd3bd AS |
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), | |
5aa5bd14 DB |
778 | BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, |
779 | BPF_FUNC_map_lookup_elem), | |
614cd3bd AS |
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 | }, | |
5aa5bd14 | 787 | .fixup_map1 = { 4 }, |
614cd3bd | 788 | .errstr = "different pointers", |
bf508877 | 789 | .errstr_unpriv = "R1 pointer comparison", |
614cd3bd AS |
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), | |
5aa5bd14 DB |
803 | BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, |
804 | BPF_FUNC_map_lookup_elem), | |
614cd3bd AS |
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 | }, | |
5aa5bd14 | 810 | .fixup_map1 = { 6 }, |
614cd3bd | 811 | .errstr = "different pointers", |
bf508877 | 812 | .errstr_unpriv = "R1 pointer comparison", |
614cd3bd AS |
813 | .result = REJECT, |
814 | }, | |
725f9dcd AS |
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), | |
5aa5bd14 DB |
827 | BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, |
828 | BPF_FUNC_map_lookup_elem), | |
725f9dcd AS |
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 | }, | |
5aa5bd14 | 834 | .fixup_map1 = { 7 }, |
725f9dcd | 835 | .errstr = "different pointers", |
bf508877 | 836 | .errstr_unpriv = "R1 pointer comparison", |
725f9dcd AS |
837 | .result = REJECT, |
838 | }, | |
d691f9e8 AS |
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", | |
bf508877 | 847 | .errstr_unpriv = "R1 leaks addr", |
d691f9e8 AS |
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", | |
bf508877 | 858 | .errstr_unpriv = "R1 leaks addr", |
d691f9e8 AS |
859 | .result = REJECT, |
860 | }, | |
861 | { | |
862 | "check non-u32 access to cb", | |
863 | .insns = { | |
864 | BPF_STX_MEM(BPF_H, BPF_REG_1, BPF_REG_1, | |
865 | offsetof(struct __sk_buff, cb[0])), | |
866 | BPF_EXIT_INSN(), | |
867 | }, | |
868 | .errstr = "invalid bpf_context access", | |
bf508877 | 869 | .errstr_unpriv = "R1 leaks addr", |
d691f9e8 AS |
870 | .result = REJECT, |
871 | }, | |
872 | { | |
873 | "check out of range skb->cb access", | |
874 | .insns = { | |
875 | BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1, | |
bf508877 | 876 | offsetof(struct __sk_buff, cb[0]) + 256), |
d691f9e8 AS |
877 | BPF_EXIT_INSN(), |
878 | }, | |
879 | .errstr = "invalid bpf_context access", | |
bf508877 | 880 | .errstr_unpriv = "", |
d691f9e8 AS |
881 | .result = REJECT, |
882 | .prog_type = BPF_PROG_TYPE_SCHED_ACT, | |
883 | }, | |
884 | { | |
885 | "write skb fields from socket prog", | |
886 | .insns = { | |
887 | BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1, | |
888 | offsetof(struct __sk_buff, cb[4])), | |
889 | BPF_JMP_IMM(BPF_JGE, BPF_REG_0, 0, 1), | |
890 | BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1, | |
891 | offsetof(struct __sk_buff, mark)), | |
892 | BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1, | |
893 | offsetof(struct __sk_buff, tc_index)), | |
894 | BPF_JMP_IMM(BPF_JGE, BPF_REG_0, 0, 1), | |
895 | BPF_STX_MEM(BPF_W, BPF_REG_1, BPF_REG_1, | |
896 | offsetof(struct __sk_buff, cb[0])), | |
897 | BPF_STX_MEM(BPF_W, BPF_REG_1, BPF_REG_1, | |
898 | offsetof(struct __sk_buff, cb[2])), | |
899 | BPF_EXIT_INSN(), | |
900 | }, | |
901 | .result = ACCEPT, | |
bf508877 AS |
902 | .errstr_unpriv = "R1 leaks addr", |
903 | .result_unpriv = REJECT, | |
d691f9e8 AS |
904 | }, |
905 | { | |
906 | "write skb fields from tc_cls_act prog", | |
907 | .insns = { | |
908 | BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1, | |
909 | offsetof(struct __sk_buff, cb[0])), | |
910 | BPF_STX_MEM(BPF_W, BPF_REG_1, BPF_REG_0, | |
911 | offsetof(struct __sk_buff, mark)), | |
912 | BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1, | |
913 | offsetof(struct __sk_buff, tc_index)), | |
914 | BPF_STX_MEM(BPF_W, BPF_REG_1, BPF_REG_0, | |
915 | offsetof(struct __sk_buff, tc_index)), | |
916 | BPF_STX_MEM(BPF_W, BPF_REG_1, BPF_REG_0, | |
917 | offsetof(struct __sk_buff, cb[3])), | |
918 | BPF_EXIT_INSN(), | |
919 | }, | |
bf508877 AS |
920 | .errstr_unpriv = "", |
921 | .result_unpriv = REJECT, | |
d691f9e8 AS |
922 | .result = ACCEPT, |
923 | .prog_type = BPF_PROG_TYPE_SCHED_CLS, | |
924 | }, | |
24b4d2ab AG |
925 | { |
926 | "PTR_TO_STACK store/load", | |
927 | .insns = { | |
928 | BPF_MOV64_REG(BPF_REG_1, BPF_REG_10), | |
929 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, -10), | |
930 | BPF_ST_MEM(BPF_DW, BPF_REG_1, 2, 0xfaceb00c), | |
931 | BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_1, 2), | |
932 | BPF_EXIT_INSN(), | |
933 | }, | |
934 | .result = ACCEPT, | |
935 | }, | |
936 | { | |
937 | "PTR_TO_STACK store/load - bad alignment on off", | |
938 | .insns = { | |
939 | BPF_MOV64_REG(BPF_REG_1, BPF_REG_10), | |
940 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, -8), | |
941 | BPF_ST_MEM(BPF_DW, BPF_REG_1, 2, 0xfaceb00c), | |
942 | BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_1, 2), | |
943 | BPF_EXIT_INSN(), | |
944 | }, | |
945 | .result = REJECT, | |
946 | .errstr = "misaligned access off -6 size 8", | |
947 | }, | |
948 | { | |
949 | "PTR_TO_STACK store/load - bad alignment on reg", | |
950 | .insns = { | |
951 | BPF_MOV64_REG(BPF_REG_1, BPF_REG_10), | |
952 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, -10), | |
953 | BPF_ST_MEM(BPF_DW, BPF_REG_1, 8, 0xfaceb00c), | |
954 | BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_1, 8), | |
955 | BPF_EXIT_INSN(), | |
956 | }, | |
957 | .result = REJECT, | |
958 | .errstr = "misaligned access off -2 size 8", | |
959 | }, | |
960 | { | |
961 | "PTR_TO_STACK store/load - out of bounds low", | |
962 | .insns = { | |
963 | BPF_MOV64_REG(BPF_REG_1, BPF_REG_10), | |
964 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, -80000), | |
965 | BPF_ST_MEM(BPF_DW, BPF_REG_1, 8, 0xfaceb00c), | |
966 | BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_1, 8), | |
967 | BPF_EXIT_INSN(), | |
968 | }, | |
969 | .result = REJECT, | |
970 | .errstr = "invalid stack off=-79992 size=8", | |
971 | }, | |
972 | { | |
973 | "PTR_TO_STACK store/load - out of bounds high", | |
974 | .insns = { | |
975 | BPF_MOV64_REG(BPF_REG_1, BPF_REG_10), | |
976 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, -8), | |
977 | BPF_ST_MEM(BPF_DW, BPF_REG_1, 8, 0xfaceb00c), | |
978 | BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_1, 8), | |
979 | BPF_EXIT_INSN(), | |
980 | }, | |
981 | .result = REJECT, | |
982 | .errstr = "invalid stack off=0 size=8", | |
983 | }, | |
bf508877 AS |
984 | { |
985 | "unpriv: return pointer", | |
986 | .insns = { | |
987 | BPF_MOV64_REG(BPF_REG_0, BPF_REG_10), | |
988 | BPF_EXIT_INSN(), | |
989 | }, | |
990 | .result = ACCEPT, | |
991 | .result_unpriv = REJECT, | |
992 | .errstr_unpriv = "R0 leaks addr", | |
993 | }, | |
994 | { | |
995 | "unpriv: add const to pointer", | |
996 | .insns = { | |
997 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, 8), | |
998 | BPF_MOV64_IMM(BPF_REG_0, 0), | |
999 | BPF_EXIT_INSN(), | |
1000 | }, | |
1001 | .result = ACCEPT, | |
1002 | .result_unpriv = REJECT, | |
1003 | .errstr_unpriv = "R1 pointer arithmetic", | |
1004 | }, | |
1005 | { | |
1006 | "unpriv: add pointer to pointer", | |
1007 | .insns = { | |
1008 | BPF_ALU64_REG(BPF_ADD, BPF_REG_1, BPF_REG_10), | |
1009 | BPF_MOV64_IMM(BPF_REG_0, 0), | |
1010 | BPF_EXIT_INSN(), | |
1011 | }, | |
1012 | .result = ACCEPT, | |
1013 | .result_unpriv = REJECT, | |
1014 | .errstr_unpriv = "R1 pointer arithmetic", | |
1015 | }, | |
1016 | { | |
1017 | "unpriv: neg pointer", | |
1018 | .insns = { | |
1019 | BPF_ALU64_IMM(BPF_NEG, BPF_REG_1, 0), | |
1020 | BPF_MOV64_IMM(BPF_REG_0, 0), | |
1021 | BPF_EXIT_INSN(), | |
1022 | }, | |
1023 | .result = ACCEPT, | |
1024 | .result_unpriv = REJECT, | |
1025 | .errstr_unpriv = "R1 pointer arithmetic", | |
1026 | }, | |
1027 | { | |
1028 | "unpriv: cmp pointer with const", | |
1029 | .insns = { | |
1030 | BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, 0, 0), | |
1031 | BPF_MOV64_IMM(BPF_REG_0, 0), | |
1032 | BPF_EXIT_INSN(), | |
1033 | }, | |
1034 | .result = ACCEPT, | |
1035 | .result_unpriv = REJECT, | |
1036 | .errstr_unpriv = "R1 pointer comparison", | |
1037 | }, | |
1038 | { | |
1039 | "unpriv: cmp pointer with pointer", | |
1040 | .insns = { | |
1041 | BPF_JMP_REG(BPF_JEQ, BPF_REG_1, BPF_REG_10, 0), | |
1042 | BPF_MOV64_IMM(BPF_REG_0, 0), | |
1043 | BPF_EXIT_INSN(), | |
1044 | }, | |
1045 | .result = ACCEPT, | |
1046 | .result_unpriv = REJECT, | |
1047 | .errstr_unpriv = "R10 pointer comparison", | |
1048 | }, | |
1049 | { | |
1050 | "unpriv: check that printk is disallowed", | |
1051 | .insns = { | |
1052 | BPF_ST_MEM(BPF_DW, BPF_REG_10, -8, 0), | |
1053 | BPF_MOV64_REG(BPF_REG_1, BPF_REG_10), | |
1054 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, -8), | |
1055 | BPF_MOV64_IMM(BPF_REG_2, 8), | |
1056 | BPF_MOV64_REG(BPF_REG_3, BPF_REG_1), | |
5aa5bd14 DB |
1057 | BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, |
1058 | BPF_FUNC_trace_printk), | |
bf508877 AS |
1059 | BPF_MOV64_IMM(BPF_REG_0, 0), |
1060 | BPF_EXIT_INSN(), | |
1061 | }, | |
1062 | .errstr_unpriv = "unknown func 6", | |
1063 | .result_unpriv = REJECT, | |
1064 | .result = ACCEPT, | |
1065 | }, | |
1066 | { | |
1067 | "unpriv: pass pointer to helper function", | |
1068 | .insns = { | |
1069 | BPF_ST_MEM(BPF_DW, BPF_REG_10, -8, 0), | |
1070 | BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), | |
1071 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8), | |
1072 | BPF_LD_MAP_FD(BPF_REG_1, 0), | |
1073 | BPF_MOV64_REG(BPF_REG_3, BPF_REG_2), | |
1074 | BPF_MOV64_REG(BPF_REG_4, BPF_REG_2), | |
5aa5bd14 DB |
1075 | BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, |
1076 | BPF_FUNC_map_update_elem), | |
bf508877 AS |
1077 | BPF_MOV64_IMM(BPF_REG_0, 0), |
1078 | BPF_EXIT_INSN(), | |
1079 | }, | |
5aa5bd14 | 1080 | .fixup_map1 = { 3 }, |
bf508877 AS |
1081 | .errstr_unpriv = "R4 leaks addr", |
1082 | .result_unpriv = REJECT, | |
1083 | .result = ACCEPT, | |
1084 | }, | |
1085 | { | |
1086 | "unpriv: indirectly pass pointer on stack to helper function", | |
1087 | .insns = { | |
1088 | BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_10, -8), | |
1089 | BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), | |
1090 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8), | |
1091 | BPF_LD_MAP_FD(BPF_REG_1, 0), | |
5aa5bd14 DB |
1092 | BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, |
1093 | BPF_FUNC_map_lookup_elem), | |
bf508877 AS |
1094 | BPF_MOV64_IMM(BPF_REG_0, 0), |
1095 | BPF_EXIT_INSN(), | |
1096 | }, | |
5aa5bd14 | 1097 | .fixup_map1 = { 3 }, |
bf508877 AS |
1098 | .errstr = "invalid indirect read from stack off -8+0 size 8", |
1099 | .result = REJECT, | |
1100 | }, | |
1101 | { | |
1102 | "unpriv: mangle pointer on stack 1", | |
1103 | .insns = { | |
1104 | BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_10, -8), | |
1105 | BPF_ST_MEM(BPF_W, BPF_REG_10, -8, 0), | |
1106 | BPF_MOV64_IMM(BPF_REG_0, 0), | |
1107 | BPF_EXIT_INSN(), | |
1108 | }, | |
1109 | .errstr_unpriv = "attempt to corrupt spilled", | |
1110 | .result_unpriv = REJECT, | |
1111 | .result = ACCEPT, | |
1112 | }, | |
1113 | { | |
1114 | "unpriv: mangle pointer on stack 2", | |
1115 | .insns = { | |
1116 | BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_10, -8), | |
1117 | BPF_ST_MEM(BPF_B, BPF_REG_10, -1, 0), | |
1118 | BPF_MOV64_IMM(BPF_REG_0, 0), | |
1119 | BPF_EXIT_INSN(), | |
1120 | }, | |
1121 | .errstr_unpriv = "attempt to corrupt spilled", | |
1122 | .result_unpriv = REJECT, | |
1123 | .result = ACCEPT, | |
1124 | }, | |
1125 | { | |
1126 | "unpriv: read pointer from stack in small chunks", | |
1127 | .insns = { | |
1128 | BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_10, -8), | |
1129 | BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_10, -8), | |
1130 | BPF_MOV64_IMM(BPF_REG_0, 0), | |
1131 | BPF_EXIT_INSN(), | |
1132 | }, | |
1133 | .errstr = "invalid size", | |
1134 | .result = REJECT, | |
1135 | }, | |
1136 | { | |
1137 | "unpriv: write pointer into ctx", | |
1138 | .insns = { | |
1139 | BPF_STX_MEM(BPF_DW, BPF_REG_1, BPF_REG_1, 0), | |
1140 | BPF_MOV64_IMM(BPF_REG_0, 0), | |
1141 | BPF_EXIT_INSN(), | |
1142 | }, | |
1143 | .errstr_unpriv = "R1 leaks addr", | |
1144 | .result_unpriv = REJECT, | |
1145 | .errstr = "invalid bpf_context access", | |
1146 | .result = REJECT, | |
1147 | }, | |
1a776b9c DB |
1148 | { |
1149 | "unpriv: spill/fill of ctx", | |
1150 | .insns = { | |
1151 | BPF_ALU64_REG(BPF_MOV, BPF_REG_6, BPF_REG_10), | |
1152 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_6, -8), | |
1153 | BPF_STX_MEM(BPF_DW, BPF_REG_6, BPF_REG_1, 0), | |
1154 | BPF_LDX_MEM(BPF_DW, BPF_REG_1, BPF_REG_6, 0), | |
1155 | BPF_MOV64_IMM(BPF_REG_0, 0), | |
1156 | BPF_EXIT_INSN(), | |
1157 | }, | |
1158 | .result = ACCEPT, | |
1159 | }, | |
1160 | { | |
1161 | "unpriv: spill/fill of ctx 2", | |
1162 | .insns = { | |
1163 | BPF_ALU64_REG(BPF_MOV, BPF_REG_6, BPF_REG_10), | |
1164 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_6, -8), | |
1165 | BPF_STX_MEM(BPF_DW, BPF_REG_6, BPF_REG_1, 0), | |
1166 | BPF_LDX_MEM(BPF_DW, BPF_REG_1, BPF_REG_6, 0), | |
5aa5bd14 DB |
1167 | BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, |
1168 | BPF_FUNC_get_hash_recalc), | |
1a776b9c DB |
1169 | BPF_EXIT_INSN(), |
1170 | }, | |
1171 | .result = ACCEPT, | |
1172 | .prog_type = BPF_PROG_TYPE_SCHED_CLS, | |
1173 | }, | |
1174 | { | |
1175 | "unpriv: spill/fill of ctx 3", | |
1176 | .insns = { | |
1177 | BPF_ALU64_REG(BPF_MOV, BPF_REG_6, BPF_REG_10), | |
1178 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_6, -8), | |
1179 | BPF_STX_MEM(BPF_DW, BPF_REG_6, BPF_REG_1, 0), | |
1180 | BPF_STX_MEM(BPF_DW, BPF_REG_6, BPF_REG_10, 0), | |
1181 | BPF_LDX_MEM(BPF_DW, BPF_REG_1, BPF_REG_6, 0), | |
5aa5bd14 DB |
1182 | BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, |
1183 | BPF_FUNC_get_hash_recalc), | |
1a776b9c DB |
1184 | BPF_EXIT_INSN(), |
1185 | }, | |
1186 | .result = REJECT, | |
1187 | .errstr = "R1 type=fp expected=ctx", | |
1188 | .prog_type = BPF_PROG_TYPE_SCHED_CLS, | |
1189 | }, | |
1190 | { | |
1191 | "unpriv: spill/fill of ctx 4", | |
1192 | .insns = { | |
1193 | BPF_ALU64_REG(BPF_MOV, BPF_REG_6, BPF_REG_10), | |
1194 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_6, -8), | |
1195 | BPF_STX_MEM(BPF_DW, BPF_REG_6, BPF_REG_1, 0), | |
1196 | BPF_MOV64_IMM(BPF_REG_0, 1), | |
5aa5bd14 DB |
1197 | BPF_RAW_INSN(BPF_STX | BPF_XADD | BPF_DW, BPF_REG_10, |
1198 | BPF_REG_0, -8, 0), | |
1a776b9c | 1199 | BPF_LDX_MEM(BPF_DW, BPF_REG_1, BPF_REG_6, 0), |
5aa5bd14 DB |
1200 | BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, |
1201 | BPF_FUNC_get_hash_recalc), | |
1a776b9c DB |
1202 | BPF_EXIT_INSN(), |
1203 | }, | |
1204 | .result = REJECT, | |
1205 | .errstr = "R1 type=inv expected=ctx", | |
1206 | .prog_type = BPF_PROG_TYPE_SCHED_CLS, | |
1207 | }, | |
1208 | { | |
1209 | "unpriv: spill/fill of different pointers stx", | |
1210 | .insns = { | |
1211 | BPF_MOV64_IMM(BPF_REG_3, 42), | |
1212 | BPF_ALU64_REG(BPF_MOV, BPF_REG_6, BPF_REG_10), | |
1213 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_6, -8), | |
1214 | BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, 0, 3), | |
1215 | BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), | |
1216 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -16), | |
1217 | BPF_STX_MEM(BPF_DW, BPF_REG_6, BPF_REG_2, 0), | |
1218 | BPF_JMP_IMM(BPF_JNE, BPF_REG_1, 0, 1), | |
1219 | BPF_STX_MEM(BPF_DW, BPF_REG_6, BPF_REG_1, 0), | |
1220 | BPF_LDX_MEM(BPF_DW, BPF_REG_1, BPF_REG_6, 0), | |
1221 | BPF_STX_MEM(BPF_W, BPF_REG_1, BPF_REG_3, | |
1222 | offsetof(struct __sk_buff, mark)), | |
1223 | BPF_MOV64_IMM(BPF_REG_0, 0), | |
1224 | BPF_EXIT_INSN(), | |
1225 | }, | |
1226 | .result = REJECT, | |
1227 | .errstr = "same insn cannot be used with different pointers", | |
1228 | .prog_type = BPF_PROG_TYPE_SCHED_CLS, | |
1229 | }, | |
1230 | { | |
1231 | "unpriv: spill/fill of different pointers ldx", | |
1232 | .insns = { | |
1233 | BPF_ALU64_REG(BPF_MOV, BPF_REG_6, BPF_REG_10), | |
1234 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_6, -8), | |
1235 | BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, 0, 3), | |
1236 | BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), | |
1237 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, | |
1238 | -(__s32)offsetof(struct bpf_perf_event_data, | |
1239 | sample_period) - 8), | |
1240 | BPF_STX_MEM(BPF_DW, BPF_REG_6, BPF_REG_2, 0), | |
1241 | BPF_JMP_IMM(BPF_JNE, BPF_REG_1, 0, 1), | |
1242 | BPF_STX_MEM(BPF_DW, BPF_REG_6, BPF_REG_1, 0), | |
1243 | BPF_LDX_MEM(BPF_DW, BPF_REG_1, BPF_REG_6, 0), | |
1244 | BPF_LDX_MEM(BPF_DW, BPF_REG_1, BPF_REG_1, | |
1245 | offsetof(struct bpf_perf_event_data, | |
1246 | sample_period)), | |
1247 | BPF_MOV64_IMM(BPF_REG_0, 0), | |
1248 | BPF_EXIT_INSN(), | |
1249 | }, | |
1250 | .result = REJECT, | |
1251 | .errstr = "same insn cannot be used with different pointers", | |
1252 | .prog_type = BPF_PROG_TYPE_PERF_EVENT, | |
1253 | }, | |
bf508877 AS |
1254 | { |
1255 | "unpriv: write pointer into map elem value", | |
1256 | .insns = { | |
1257 | BPF_ST_MEM(BPF_DW, BPF_REG_10, -8, 0), | |
1258 | BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), | |
1259 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8), | |
1260 | BPF_LD_MAP_FD(BPF_REG_1, 0), | |
5aa5bd14 DB |
1261 | BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, |
1262 | BPF_FUNC_map_lookup_elem), | |
bf508877 AS |
1263 | BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 1), |
1264 | BPF_STX_MEM(BPF_DW, BPF_REG_0, BPF_REG_0, 0), | |
1265 | BPF_EXIT_INSN(), | |
1266 | }, | |
5aa5bd14 | 1267 | .fixup_map1 = { 3 }, |
bf508877 AS |
1268 | .errstr_unpriv = "R0 leaks addr", |
1269 | .result_unpriv = REJECT, | |
1270 | .result = ACCEPT, | |
1271 | }, | |
1272 | { | |
1273 | "unpriv: partial copy of pointer", | |
1274 | .insns = { | |
1275 | BPF_MOV32_REG(BPF_REG_1, BPF_REG_10), | |
1276 | BPF_MOV64_IMM(BPF_REG_0, 0), | |
1277 | BPF_EXIT_INSN(), | |
1278 | }, | |
1279 | .errstr_unpriv = "R10 partial copy", | |
1280 | .result_unpriv = REJECT, | |
1281 | .result = ACCEPT, | |
1282 | }, | |
1283 | { | |
1284 | "unpriv: pass pointer to tail_call", | |
1285 | .insns = { | |
1286 | BPF_MOV64_REG(BPF_REG_3, BPF_REG_1), | |
1287 | BPF_LD_MAP_FD(BPF_REG_2, 0), | |
5aa5bd14 DB |
1288 | BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, |
1289 | BPF_FUNC_tail_call), | |
bf508877 AS |
1290 | BPF_MOV64_IMM(BPF_REG_0, 0), |
1291 | BPF_EXIT_INSN(), | |
1292 | }, | |
5aa5bd14 | 1293 | .fixup_prog = { 1 }, |
bf508877 AS |
1294 | .errstr_unpriv = "R3 leaks addr into helper", |
1295 | .result_unpriv = REJECT, | |
1296 | .result = ACCEPT, | |
1297 | }, | |
1298 | { | |
1299 | "unpriv: cmp map pointer with zero", | |
1300 | .insns = { | |
1301 | BPF_MOV64_IMM(BPF_REG_1, 0), | |
1302 | BPF_LD_MAP_FD(BPF_REG_1, 0), | |
1303 | BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, 0, 0), | |
1304 | BPF_MOV64_IMM(BPF_REG_0, 0), | |
1305 | BPF_EXIT_INSN(), | |
1306 | }, | |
5aa5bd14 | 1307 | .fixup_map1 = { 1 }, |
bf508877 AS |
1308 | .errstr_unpriv = "R1 pointer comparison", |
1309 | .result_unpriv = REJECT, | |
1310 | .result = ACCEPT, | |
1311 | }, | |
1312 | { | |
1313 | "unpriv: write into frame pointer", | |
1314 | .insns = { | |
1315 | BPF_MOV64_REG(BPF_REG_10, BPF_REG_1), | |
1316 | BPF_MOV64_IMM(BPF_REG_0, 0), | |
1317 | BPF_EXIT_INSN(), | |
1318 | }, | |
1319 | .errstr = "frame pointer is read only", | |
1320 | .result = REJECT, | |
1321 | }, | |
1a776b9c DB |
1322 | { |
1323 | "unpriv: spill/fill frame pointer", | |
1324 | .insns = { | |
1325 | BPF_ALU64_REG(BPF_MOV, BPF_REG_6, BPF_REG_10), | |
1326 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_6, -8), | |
1327 | BPF_STX_MEM(BPF_DW, BPF_REG_6, BPF_REG_10, 0), | |
1328 | BPF_LDX_MEM(BPF_DW, BPF_REG_10, BPF_REG_6, 0), | |
1329 | BPF_MOV64_IMM(BPF_REG_0, 0), | |
1330 | BPF_EXIT_INSN(), | |
1331 | }, | |
1332 | .errstr = "frame pointer is read only", | |
1333 | .result = REJECT, | |
1334 | }, | |
bf508877 AS |
1335 | { |
1336 | "unpriv: cmp of frame pointer", | |
1337 | .insns = { | |
1338 | BPF_JMP_IMM(BPF_JEQ, BPF_REG_10, 0, 0), | |
1339 | BPF_MOV64_IMM(BPF_REG_0, 0), | |
1340 | BPF_EXIT_INSN(), | |
1341 | }, | |
1342 | .errstr_unpriv = "R10 pointer comparison", | |
1343 | .result_unpriv = REJECT, | |
1344 | .result = ACCEPT, | |
1345 | }, | |
1346 | { | |
1347 | "unpriv: cmp of stack pointer", | |
1348 | .insns = { | |
1349 | BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), | |
1350 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8), | |
1351 | BPF_JMP_IMM(BPF_JEQ, BPF_REG_2, 0, 0), | |
1352 | BPF_MOV64_IMM(BPF_REG_0, 0), | |
1353 | BPF_EXIT_INSN(), | |
1354 | }, | |
1355 | .errstr_unpriv = "R2 pointer comparison", | |
1356 | .result_unpriv = REJECT, | |
1357 | .result = ACCEPT, | |
1358 | }, | |
1359 | { | |
1360 | "unpriv: obfuscate stack pointer", | |
1361 | .insns = { | |
1362 | BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), | |
1363 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8), | |
1364 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8), | |
1365 | BPF_MOV64_IMM(BPF_REG_0, 0), | |
1366 | BPF_EXIT_INSN(), | |
1367 | }, | |
1368 | .errstr_unpriv = "R2 pointer arithmetic", | |
1369 | .result_unpriv = REJECT, | |
1370 | .result = ACCEPT, | |
1371 | }, | |
3f2050e2 DB |
1372 | { |
1373 | "raw_stack: no skb_load_bytes", | |
1374 | .insns = { | |
1375 | BPF_MOV64_IMM(BPF_REG_2, 4), | |
1376 | BPF_ALU64_REG(BPF_MOV, BPF_REG_6, BPF_REG_10), | |
1377 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_6, -8), | |
1378 | BPF_MOV64_REG(BPF_REG_3, BPF_REG_6), | |
1379 | BPF_MOV64_IMM(BPF_REG_4, 8), | |
1380 | /* Call to skb_load_bytes() omitted. */ | |
1381 | BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_6, 0), | |
1382 | BPF_EXIT_INSN(), | |
1383 | }, | |
1384 | .result = REJECT, | |
1385 | .errstr = "invalid read from stack off -8+0 size 8", | |
1386 | .prog_type = BPF_PROG_TYPE_SCHED_CLS, | |
1387 | }, | |
7d95b0ab DB |
1388 | { |
1389 | "raw_stack: skb_load_bytes, negative len", | |
1390 | .insns = { | |
1391 | BPF_MOV64_IMM(BPF_REG_2, 4), | |
1392 | BPF_ALU64_REG(BPF_MOV, BPF_REG_6, BPF_REG_10), | |
1393 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_6, -8), | |
1394 | BPF_MOV64_REG(BPF_REG_3, BPF_REG_6), | |
1395 | BPF_MOV64_IMM(BPF_REG_4, -8), | |
5aa5bd14 DB |
1396 | BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, |
1397 | BPF_FUNC_skb_load_bytes), | |
7d95b0ab DB |
1398 | BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_6, 0), |
1399 | BPF_EXIT_INSN(), | |
1400 | }, | |
1401 | .result = REJECT, | |
1402 | .errstr = "invalid stack type R3", | |
1403 | .prog_type = BPF_PROG_TYPE_SCHED_CLS, | |
1404 | }, | |
1405 | { | |
1406 | "raw_stack: skb_load_bytes, negative len 2", | |
1407 | .insns = { | |
1408 | BPF_MOV64_IMM(BPF_REG_2, 4), | |
1409 | BPF_ALU64_REG(BPF_MOV, BPF_REG_6, BPF_REG_10), | |
1410 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_6, -8), | |
1411 | BPF_MOV64_REG(BPF_REG_3, BPF_REG_6), | |
1412 | BPF_MOV64_IMM(BPF_REG_4, ~0), | |
5aa5bd14 DB |
1413 | BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, |
1414 | BPF_FUNC_skb_load_bytes), | |
7d95b0ab DB |
1415 | BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_6, 0), |
1416 | BPF_EXIT_INSN(), | |
1417 | }, | |
1418 | .result = REJECT, | |
1419 | .errstr = "invalid stack type R3", | |
1420 | .prog_type = BPF_PROG_TYPE_SCHED_CLS, | |
1421 | }, | |
1422 | { | |
1423 | "raw_stack: skb_load_bytes, zero len", | |
1424 | .insns = { | |
1425 | BPF_MOV64_IMM(BPF_REG_2, 4), | |
1426 | BPF_ALU64_REG(BPF_MOV, BPF_REG_6, BPF_REG_10), | |
1427 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_6, -8), | |
1428 | BPF_MOV64_REG(BPF_REG_3, BPF_REG_6), | |
1429 | BPF_MOV64_IMM(BPF_REG_4, 0), | |
5aa5bd14 DB |
1430 | BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, |
1431 | BPF_FUNC_skb_load_bytes), | |
7d95b0ab DB |
1432 | BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_6, 0), |
1433 | BPF_EXIT_INSN(), | |
1434 | }, | |
1435 | .result = REJECT, | |
1436 | .errstr = "invalid stack type R3", | |
1437 | .prog_type = BPF_PROG_TYPE_SCHED_CLS, | |
1438 | }, | |
3f2050e2 DB |
1439 | { |
1440 | "raw_stack: skb_load_bytes, no init", | |
1441 | .insns = { | |
1442 | BPF_MOV64_IMM(BPF_REG_2, 4), | |
1443 | BPF_ALU64_REG(BPF_MOV, BPF_REG_6, BPF_REG_10), | |
1444 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_6, -8), | |
1445 | BPF_MOV64_REG(BPF_REG_3, BPF_REG_6), | |
1446 | BPF_MOV64_IMM(BPF_REG_4, 8), | |
5aa5bd14 DB |
1447 | BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, |
1448 | BPF_FUNC_skb_load_bytes), | |
3f2050e2 DB |
1449 | BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_6, 0), |
1450 | BPF_EXIT_INSN(), | |
1451 | }, | |
1452 | .result = ACCEPT, | |
1453 | .prog_type = BPF_PROG_TYPE_SCHED_CLS, | |
1454 | }, | |
1455 | { | |
1456 | "raw_stack: skb_load_bytes, init", | |
1457 | .insns = { | |
1458 | BPF_MOV64_IMM(BPF_REG_2, 4), | |
1459 | BPF_ALU64_REG(BPF_MOV, BPF_REG_6, BPF_REG_10), | |
1460 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_6, -8), | |
1461 | BPF_ST_MEM(BPF_DW, BPF_REG_6, 0, 0xcafe), | |
1462 | BPF_MOV64_REG(BPF_REG_3, BPF_REG_6), | |
1463 | BPF_MOV64_IMM(BPF_REG_4, 8), | |
5aa5bd14 DB |
1464 | BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, |
1465 | BPF_FUNC_skb_load_bytes), | |
3f2050e2 DB |
1466 | BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_6, 0), |
1467 | BPF_EXIT_INSN(), | |
1468 | }, | |
1469 | .result = ACCEPT, | |
1470 | .prog_type = BPF_PROG_TYPE_SCHED_CLS, | |
1471 | }, | |
1472 | { | |
1473 | "raw_stack: skb_load_bytes, spilled regs around bounds", | |
1474 | .insns = { | |
1475 | BPF_MOV64_IMM(BPF_REG_2, 4), | |
1476 | BPF_ALU64_REG(BPF_MOV, BPF_REG_6, BPF_REG_10), | |
1477 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_6, -16), | |
5aa5bd14 DB |
1478 | BPF_STX_MEM(BPF_DW, BPF_REG_6, BPF_REG_1, -8), |
1479 | BPF_STX_MEM(BPF_DW, BPF_REG_6, BPF_REG_1, 8), | |
3f2050e2 DB |
1480 | BPF_MOV64_REG(BPF_REG_3, BPF_REG_6), |
1481 | BPF_MOV64_IMM(BPF_REG_4, 8), | |
5aa5bd14 DB |
1482 | BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, |
1483 | BPF_FUNC_skb_load_bytes), | |
1484 | BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_6, -8), | |
1485 | BPF_LDX_MEM(BPF_DW, BPF_REG_2, BPF_REG_6, 8), | |
3f2050e2 DB |
1486 | BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_0, |
1487 | offsetof(struct __sk_buff, mark)), | |
1488 | BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_2, | |
1489 | offsetof(struct __sk_buff, priority)), | |
1490 | BPF_ALU64_REG(BPF_ADD, BPF_REG_0, BPF_REG_2), | |
1491 | BPF_EXIT_INSN(), | |
1492 | }, | |
1493 | .result = ACCEPT, | |
1494 | .prog_type = BPF_PROG_TYPE_SCHED_CLS, | |
1495 | }, | |
1496 | { | |
1497 | "raw_stack: skb_load_bytes, spilled regs corruption", | |
1498 | .insns = { | |
1499 | BPF_MOV64_IMM(BPF_REG_2, 4), | |
1500 | BPF_ALU64_REG(BPF_MOV, BPF_REG_6, BPF_REG_10), | |
1501 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_6, -8), | |
5aa5bd14 | 1502 | BPF_STX_MEM(BPF_DW, BPF_REG_6, BPF_REG_1, 0), |
3f2050e2 DB |
1503 | BPF_MOV64_REG(BPF_REG_3, BPF_REG_6), |
1504 | BPF_MOV64_IMM(BPF_REG_4, 8), | |
5aa5bd14 DB |
1505 | BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, |
1506 | BPF_FUNC_skb_load_bytes), | |
1507 | BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_6, 0), | |
3f2050e2 DB |
1508 | BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_0, |
1509 | offsetof(struct __sk_buff, mark)), | |
1510 | BPF_EXIT_INSN(), | |
1511 | }, | |
1512 | .result = REJECT, | |
1513 | .errstr = "R0 invalid mem access 'inv'", | |
1514 | .prog_type = BPF_PROG_TYPE_SCHED_CLS, | |
1515 | }, | |
1516 | { | |
1517 | "raw_stack: skb_load_bytes, spilled regs corruption 2", | |
1518 | .insns = { | |
1519 | BPF_MOV64_IMM(BPF_REG_2, 4), | |
1520 | BPF_ALU64_REG(BPF_MOV, BPF_REG_6, BPF_REG_10), | |
1521 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_6, -16), | |
5aa5bd14 DB |
1522 | BPF_STX_MEM(BPF_DW, BPF_REG_6, BPF_REG_1, -8), |
1523 | BPF_STX_MEM(BPF_DW, BPF_REG_6, BPF_REG_1, 0), | |
1524 | BPF_STX_MEM(BPF_DW, BPF_REG_6, BPF_REG_1, 8), | |
3f2050e2 DB |
1525 | BPF_MOV64_REG(BPF_REG_3, BPF_REG_6), |
1526 | BPF_MOV64_IMM(BPF_REG_4, 8), | |
5aa5bd14 DB |
1527 | BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, |
1528 | BPF_FUNC_skb_load_bytes), | |
1529 | BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_6, -8), | |
1530 | BPF_LDX_MEM(BPF_DW, BPF_REG_2, BPF_REG_6, 8), | |
1531 | BPF_LDX_MEM(BPF_DW, BPF_REG_3, BPF_REG_6, 0), | |
3f2050e2 DB |
1532 | BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_0, |
1533 | offsetof(struct __sk_buff, mark)), | |
1534 | BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_2, | |
1535 | offsetof(struct __sk_buff, priority)), | |
1536 | BPF_ALU64_REG(BPF_ADD, BPF_REG_0, BPF_REG_2), | |
1537 | BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_3, | |
1538 | offsetof(struct __sk_buff, pkt_type)), | |
1539 | BPF_ALU64_REG(BPF_ADD, BPF_REG_0, BPF_REG_3), | |
1540 | BPF_EXIT_INSN(), | |
1541 | }, | |
1542 | .result = REJECT, | |
1543 | .errstr = "R3 invalid mem access 'inv'", | |
1544 | .prog_type = BPF_PROG_TYPE_SCHED_CLS, | |
1545 | }, | |
1546 | { | |
1547 | "raw_stack: skb_load_bytes, spilled regs + data", | |
1548 | .insns = { | |
1549 | BPF_MOV64_IMM(BPF_REG_2, 4), | |
1550 | BPF_ALU64_REG(BPF_MOV, BPF_REG_6, BPF_REG_10), | |
1551 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_6, -16), | |
5aa5bd14 DB |
1552 | BPF_STX_MEM(BPF_DW, BPF_REG_6, BPF_REG_1, -8), |
1553 | BPF_STX_MEM(BPF_DW, BPF_REG_6, BPF_REG_1, 0), | |
1554 | BPF_STX_MEM(BPF_DW, BPF_REG_6, BPF_REG_1, 8), | |
3f2050e2 DB |
1555 | BPF_MOV64_REG(BPF_REG_3, BPF_REG_6), |
1556 | BPF_MOV64_IMM(BPF_REG_4, 8), | |
5aa5bd14 DB |
1557 | BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, |
1558 | BPF_FUNC_skb_load_bytes), | |
1559 | BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_6, -8), | |
1560 | BPF_LDX_MEM(BPF_DW, BPF_REG_2, BPF_REG_6, 8), | |
1561 | BPF_LDX_MEM(BPF_DW, BPF_REG_3, BPF_REG_6, 0), | |
3f2050e2 DB |
1562 | BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_0, |
1563 | offsetof(struct __sk_buff, mark)), | |
1564 | BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_2, | |
1565 | offsetof(struct __sk_buff, priority)), | |
1566 | BPF_ALU64_REG(BPF_ADD, BPF_REG_0, BPF_REG_2), | |
1567 | BPF_ALU64_REG(BPF_ADD, BPF_REG_0, BPF_REG_3), | |
1568 | BPF_EXIT_INSN(), | |
1569 | }, | |
1570 | .result = ACCEPT, | |
1571 | .prog_type = BPF_PROG_TYPE_SCHED_CLS, | |
1572 | }, | |
1573 | { | |
1574 | "raw_stack: skb_load_bytes, invalid access 1", | |
1575 | .insns = { | |
1576 | BPF_MOV64_IMM(BPF_REG_2, 4), | |
1577 | BPF_ALU64_REG(BPF_MOV, BPF_REG_6, BPF_REG_10), | |
1578 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_6, -513), | |
1579 | BPF_MOV64_REG(BPF_REG_3, BPF_REG_6), | |
1580 | BPF_MOV64_IMM(BPF_REG_4, 8), | |
5aa5bd14 DB |
1581 | BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, |
1582 | BPF_FUNC_skb_load_bytes), | |
3f2050e2 DB |
1583 | BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_6, 0), |
1584 | BPF_EXIT_INSN(), | |
1585 | }, | |
1586 | .result = REJECT, | |
1587 | .errstr = "invalid stack type R3 off=-513 access_size=8", | |
1588 | .prog_type = BPF_PROG_TYPE_SCHED_CLS, | |
1589 | }, | |
1590 | { | |
1591 | "raw_stack: skb_load_bytes, invalid access 2", | |
1592 | .insns = { | |
1593 | BPF_MOV64_IMM(BPF_REG_2, 4), | |
1594 | BPF_ALU64_REG(BPF_MOV, BPF_REG_6, BPF_REG_10), | |
1595 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_6, -1), | |
1596 | BPF_MOV64_REG(BPF_REG_3, BPF_REG_6), | |
1597 | BPF_MOV64_IMM(BPF_REG_4, 8), | |
5aa5bd14 DB |
1598 | BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, |
1599 | BPF_FUNC_skb_load_bytes), | |
3f2050e2 DB |
1600 | BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_6, 0), |
1601 | BPF_EXIT_INSN(), | |
1602 | }, | |
1603 | .result = REJECT, | |
1604 | .errstr = "invalid stack type R3 off=-1 access_size=8", | |
1605 | .prog_type = BPF_PROG_TYPE_SCHED_CLS, | |
1606 | }, | |
1607 | { | |
1608 | "raw_stack: skb_load_bytes, invalid access 3", | |
1609 | .insns = { | |
1610 | BPF_MOV64_IMM(BPF_REG_2, 4), | |
1611 | BPF_ALU64_REG(BPF_MOV, BPF_REG_6, BPF_REG_10), | |
1612 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_6, 0xffffffff), | |
1613 | BPF_MOV64_REG(BPF_REG_3, BPF_REG_6), | |
1614 | BPF_MOV64_IMM(BPF_REG_4, 0xffffffff), | |
5aa5bd14 DB |
1615 | BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, |
1616 | BPF_FUNC_skb_load_bytes), | |
3f2050e2 DB |
1617 | BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_6, 0), |
1618 | BPF_EXIT_INSN(), | |
1619 | }, | |
1620 | .result = REJECT, | |
1621 | .errstr = "invalid stack type R3 off=-1 access_size=-1", | |
1622 | .prog_type = BPF_PROG_TYPE_SCHED_CLS, | |
1623 | }, | |
1624 | { | |
1625 | "raw_stack: skb_load_bytes, invalid access 4", | |
1626 | .insns = { | |
1627 | BPF_MOV64_IMM(BPF_REG_2, 4), | |
1628 | BPF_ALU64_REG(BPF_MOV, BPF_REG_6, BPF_REG_10), | |
1629 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_6, -1), | |
1630 | BPF_MOV64_REG(BPF_REG_3, BPF_REG_6), | |
1631 | BPF_MOV64_IMM(BPF_REG_4, 0x7fffffff), | |
5aa5bd14 DB |
1632 | BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, |
1633 | BPF_FUNC_skb_load_bytes), | |
3f2050e2 DB |
1634 | BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_6, 0), |
1635 | BPF_EXIT_INSN(), | |
1636 | }, | |
1637 | .result = REJECT, | |
1638 | .errstr = "invalid stack type R3 off=-1 access_size=2147483647", | |
1639 | .prog_type = BPF_PROG_TYPE_SCHED_CLS, | |
1640 | }, | |
1641 | { | |
1642 | "raw_stack: skb_load_bytes, invalid access 5", | |
1643 | .insns = { | |
1644 | BPF_MOV64_IMM(BPF_REG_2, 4), | |
1645 | BPF_ALU64_REG(BPF_MOV, BPF_REG_6, BPF_REG_10), | |
1646 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_6, -512), | |
1647 | BPF_MOV64_REG(BPF_REG_3, BPF_REG_6), | |
1648 | BPF_MOV64_IMM(BPF_REG_4, 0x7fffffff), | |
5aa5bd14 DB |
1649 | BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, |
1650 | BPF_FUNC_skb_load_bytes), | |
3f2050e2 DB |
1651 | BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_6, 0), |
1652 | BPF_EXIT_INSN(), | |
1653 | }, | |
1654 | .result = REJECT, | |
1655 | .errstr = "invalid stack type R3 off=-512 access_size=2147483647", | |
1656 | .prog_type = BPF_PROG_TYPE_SCHED_CLS, | |
1657 | }, | |
1658 | { | |
1659 | "raw_stack: skb_load_bytes, invalid access 6", | |
1660 | .insns = { | |
1661 | BPF_MOV64_IMM(BPF_REG_2, 4), | |
1662 | BPF_ALU64_REG(BPF_MOV, BPF_REG_6, BPF_REG_10), | |
1663 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_6, -512), | |
1664 | BPF_MOV64_REG(BPF_REG_3, BPF_REG_6), | |
1665 | BPF_MOV64_IMM(BPF_REG_4, 0), | |
5aa5bd14 DB |
1666 | BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, |
1667 | BPF_FUNC_skb_load_bytes), | |
3f2050e2 DB |
1668 | BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_6, 0), |
1669 | BPF_EXIT_INSN(), | |
1670 | }, | |
1671 | .result = REJECT, | |
1672 | .errstr = "invalid stack type R3 off=-512 access_size=0", | |
1673 | .prog_type = BPF_PROG_TYPE_SCHED_CLS, | |
1674 | }, | |
1675 | { | |
1676 | "raw_stack: skb_load_bytes, large access", | |
1677 | .insns = { | |
1678 | BPF_MOV64_IMM(BPF_REG_2, 4), | |
1679 | BPF_ALU64_REG(BPF_MOV, BPF_REG_6, BPF_REG_10), | |
1680 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_6, -512), | |
1681 | BPF_MOV64_REG(BPF_REG_3, BPF_REG_6), | |
1682 | BPF_MOV64_IMM(BPF_REG_4, 512), | |
5aa5bd14 DB |
1683 | BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, |
1684 | BPF_FUNC_skb_load_bytes), | |
3f2050e2 DB |
1685 | BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_6, 0), |
1686 | BPF_EXIT_INSN(), | |
1687 | }, | |
1688 | .result = ACCEPT, | |
1689 | .prog_type = BPF_PROG_TYPE_SCHED_CLS, | |
1690 | }, | |
883e44e4 | 1691 | { |
1633ac0a | 1692 | "direct packet access: test1", |
883e44e4 AS |
1693 | .insns = { |
1694 | BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1, | |
1695 | offsetof(struct __sk_buff, data)), | |
1696 | BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1, | |
1697 | offsetof(struct __sk_buff, data_end)), | |
1698 | BPF_MOV64_REG(BPF_REG_0, BPF_REG_2), | |
1699 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_0, 8), | |
1700 | BPF_JMP_REG(BPF_JGT, BPF_REG_0, BPF_REG_3, 1), | |
1701 | BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_2, 0), | |
1702 | BPF_MOV64_IMM(BPF_REG_0, 0), | |
1703 | BPF_EXIT_INSN(), | |
1704 | }, | |
1705 | .result = ACCEPT, | |
1706 | .prog_type = BPF_PROG_TYPE_SCHED_CLS, | |
1707 | }, | |
1708 | { | |
1633ac0a | 1709 | "direct packet access: test2", |
883e44e4 AS |
1710 | .insns = { |
1711 | BPF_MOV64_IMM(BPF_REG_0, 1), | |
1712 | BPF_LDX_MEM(BPF_W, BPF_REG_4, BPF_REG_1, | |
1713 | offsetof(struct __sk_buff, data_end)), | |
1714 | BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1, | |
1715 | offsetof(struct __sk_buff, data)), | |
1716 | BPF_MOV64_REG(BPF_REG_5, BPF_REG_3), | |
1717 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_5, 14), | |
1718 | BPF_JMP_REG(BPF_JGT, BPF_REG_5, BPF_REG_4, 15), | |
1719 | BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_3, 7), | |
1720 | BPF_LDX_MEM(BPF_B, BPF_REG_4, BPF_REG_3, 12), | |
1721 | BPF_ALU64_IMM(BPF_MUL, BPF_REG_4, 14), | |
1722 | BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1, | |
1723 | offsetof(struct __sk_buff, data)), | |
1724 | BPF_ALU64_REG(BPF_ADD, BPF_REG_3, BPF_REG_4), | |
1725 | BPF_MOV64_REG(BPF_REG_2, BPF_REG_1), | |
1726 | BPF_ALU64_IMM(BPF_LSH, BPF_REG_2, 48), | |
1727 | BPF_ALU64_IMM(BPF_RSH, BPF_REG_2, 48), | |
1728 | BPF_ALU64_REG(BPF_ADD, BPF_REG_3, BPF_REG_2), | |
1729 | BPF_MOV64_REG(BPF_REG_2, BPF_REG_3), | |
1730 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, 8), | |
1731 | BPF_LDX_MEM(BPF_W, BPF_REG_1, BPF_REG_1, | |
1732 | offsetof(struct __sk_buff, data_end)), | |
1733 | BPF_JMP_REG(BPF_JGT, BPF_REG_2, BPF_REG_1, 1), | |
1734 | BPF_LDX_MEM(BPF_B, BPF_REG_1, BPF_REG_3, 4), | |
1735 | BPF_MOV64_IMM(BPF_REG_0, 0), | |
1736 | BPF_EXIT_INSN(), | |
1737 | }, | |
1738 | .result = ACCEPT, | |
1739 | .prog_type = BPF_PROG_TYPE_SCHED_CLS, | |
1740 | }, | |
1741 | { | |
1633ac0a | 1742 | "direct packet access: test3", |
883e44e4 AS |
1743 | .insns = { |
1744 | BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1, | |
1745 | offsetof(struct __sk_buff, data)), | |
1746 | BPF_MOV64_IMM(BPF_REG_0, 0), | |
1747 | BPF_EXIT_INSN(), | |
1748 | }, | |
1749 | .errstr = "invalid bpf_context access off=76", | |
1750 | .result = REJECT, | |
1751 | .prog_type = BPF_PROG_TYPE_SOCKET_FILTER, | |
1752 | }, | |
1753 | { | |
7d95b0ab | 1754 | "direct packet access: test4 (write)", |
883e44e4 AS |
1755 | .insns = { |
1756 | BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1, | |
1757 | offsetof(struct __sk_buff, data)), | |
1758 | BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1, | |
1759 | offsetof(struct __sk_buff, data_end)), | |
1760 | BPF_MOV64_REG(BPF_REG_0, BPF_REG_2), | |
1761 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_0, 8), | |
1762 | BPF_JMP_REG(BPF_JGT, BPF_REG_0, BPF_REG_3, 1), | |
1763 | BPF_STX_MEM(BPF_B, BPF_REG_2, BPF_REG_2, 0), | |
1764 | BPF_MOV64_IMM(BPF_REG_0, 0), | |
1765 | BPF_EXIT_INSN(), | |
1766 | }, | |
7d95b0ab | 1767 | .result = ACCEPT, |
883e44e4 AS |
1768 | .prog_type = BPF_PROG_TYPE_SCHED_CLS, |
1769 | }, | |
2d2be8ca DB |
1770 | { |
1771 | "direct packet access: test5 (pkt_end >= reg, good access)", | |
1772 | .insns = { | |
1773 | BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1, | |
1774 | offsetof(struct __sk_buff, data)), | |
1775 | BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1, | |
1776 | offsetof(struct __sk_buff, data_end)), | |
1777 | BPF_MOV64_REG(BPF_REG_0, BPF_REG_2), | |
1778 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_0, 8), | |
1779 | BPF_JMP_REG(BPF_JGE, BPF_REG_3, BPF_REG_0, 2), | |
1780 | BPF_MOV64_IMM(BPF_REG_0, 1), | |
1781 | BPF_EXIT_INSN(), | |
1782 | BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_2, 0), | |
1783 | BPF_MOV64_IMM(BPF_REG_0, 0), | |
1784 | BPF_EXIT_INSN(), | |
1785 | }, | |
1786 | .result = ACCEPT, | |
1787 | .prog_type = BPF_PROG_TYPE_SCHED_CLS, | |
1788 | }, | |
1789 | { | |
1790 | "direct packet access: test6 (pkt_end >= reg, bad access)", | |
1791 | .insns = { | |
1792 | BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1, | |
1793 | offsetof(struct __sk_buff, data)), | |
1794 | BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1, | |
1795 | offsetof(struct __sk_buff, data_end)), | |
1796 | BPF_MOV64_REG(BPF_REG_0, BPF_REG_2), | |
1797 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_0, 8), | |
1798 | BPF_JMP_REG(BPF_JGE, BPF_REG_3, BPF_REG_0, 3), | |
1799 | BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_2, 0), | |
1800 | BPF_MOV64_IMM(BPF_REG_0, 1), | |
1801 | BPF_EXIT_INSN(), | |
1802 | BPF_MOV64_IMM(BPF_REG_0, 0), | |
1803 | BPF_EXIT_INSN(), | |
1804 | }, | |
1805 | .errstr = "invalid access to packet", | |
1806 | .result = REJECT, | |
1807 | .prog_type = BPF_PROG_TYPE_SCHED_CLS, | |
1808 | }, | |
1809 | { | |
1810 | "direct packet access: test7 (pkt_end >= reg, both accesses)", | |
1811 | .insns = { | |
1812 | BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1, | |
1813 | offsetof(struct __sk_buff, data)), | |
1814 | BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1, | |
1815 | offsetof(struct __sk_buff, data_end)), | |
1816 | BPF_MOV64_REG(BPF_REG_0, BPF_REG_2), | |
1817 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_0, 8), | |
1818 | BPF_JMP_REG(BPF_JGE, BPF_REG_3, BPF_REG_0, 3), | |
1819 | BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_2, 0), | |
1820 | BPF_MOV64_IMM(BPF_REG_0, 1), | |
1821 | BPF_EXIT_INSN(), | |
1822 | BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_2, 0), | |
1823 | BPF_MOV64_IMM(BPF_REG_0, 0), | |
1824 | BPF_EXIT_INSN(), | |
1825 | }, | |
1826 | .errstr = "invalid access to packet", | |
1827 | .result = REJECT, | |
1828 | .prog_type = BPF_PROG_TYPE_SCHED_CLS, | |
1829 | }, | |
1830 | { | |
1831 | "direct packet access: test8 (double test, variant 1)", | |
1832 | .insns = { | |
1833 | BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1, | |
1834 | offsetof(struct __sk_buff, data)), | |
1835 | BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1, | |
1836 | offsetof(struct __sk_buff, data_end)), | |
1837 | BPF_MOV64_REG(BPF_REG_0, BPF_REG_2), | |
1838 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_0, 8), | |
1839 | BPF_JMP_REG(BPF_JGE, BPF_REG_3, BPF_REG_0, 4), | |
1840 | BPF_JMP_REG(BPF_JGT, BPF_REG_0, BPF_REG_3, 1), | |
1841 | BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_2, 0), | |
1842 | BPF_MOV64_IMM(BPF_REG_0, 1), | |
1843 | BPF_EXIT_INSN(), | |
1844 | BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_2, 0), | |
1845 | BPF_MOV64_IMM(BPF_REG_0, 0), | |
1846 | BPF_EXIT_INSN(), | |
1847 | }, | |
1848 | .result = ACCEPT, | |
1849 | .prog_type = BPF_PROG_TYPE_SCHED_CLS, | |
1850 | }, | |
1851 | { | |
1852 | "direct packet access: test9 (double test, variant 2)", | |
1853 | .insns = { | |
1854 | BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1, | |
1855 | offsetof(struct __sk_buff, data)), | |
1856 | BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1, | |
1857 | offsetof(struct __sk_buff, data_end)), | |
1858 | BPF_MOV64_REG(BPF_REG_0, BPF_REG_2), | |
1859 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_0, 8), | |
1860 | BPF_JMP_REG(BPF_JGE, BPF_REG_3, BPF_REG_0, 2), | |
1861 | BPF_MOV64_IMM(BPF_REG_0, 1), | |
1862 | BPF_EXIT_INSN(), | |
1863 | BPF_JMP_REG(BPF_JGT, BPF_REG_0, BPF_REG_3, 1), | |
1864 | BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_2, 0), | |
1865 | BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_2, 0), | |
1866 | BPF_MOV64_IMM(BPF_REG_0, 0), | |
1867 | BPF_EXIT_INSN(), | |
1868 | }, | |
1869 | .result = ACCEPT, | |
1870 | .prog_type = BPF_PROG_TYPE_SCHED_CLS, | |
1871 | }, | |
7d95b0ab DB |
1872 | { |
1873 | "direct packet access: test10 (write invalid)", | |
1874 | .insns = { | |
1875 | BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1, | |
1876 | offsetof(struct __sk_buff, data)), | |
1877 | BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1, | |
1878 | offsetof(struct __sk_buff, data_end)), | |
1879 | BPF_MOV64_REG(BPF_REG_0, BPF_REG_2), | |
1880 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_0, 8), | |
1881 | BPF_JMP_REG(BPF_JGT, BPF_REG_0, BPF_REG_3, 2), | |
1882 | BPF_MOV64_IMM(BPF_REG_0, 0), | |
1883 | BPF_EXIT_INSN(), | |
1884 | BPF_STX_MEM(BPF_B, BPF_REG_2, BPF_REG_2, 0), | |
1885 | BPF_MOV64_IMM(BPF_REG_0, 0), | |
1886 | BPF_EXIT_INSN(), | |
1887 | }, | |
1888 | .errstr = "invalid access to packet", | |
1889 | .result = REJECT, | |
1890 | .prog_type = BPF_PROG_TYPE_SCHED_CLS, | |
1891 | }, | |
1633ac0a AY |
1892 | { |
1893 | "helper access to packet: test1, valid packet_ptr range", | |
1894 | .insns = { | |
1895 | BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1, | |
1896 | offsetof(struct xdp_md, data)), | |
1897 | BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1, | |
1898 | offsetof(struct xdp_md, data_end)), | |
1899 | BPF_MOV64_REG(BPF_REG_1, BPF_REG_2), | |
1900 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, 8), | |
1901 | BPF_JMP_REG(BPF_JGT, BPF_REG_1, BPF_REG_3, 5), | |
1902 | BPF_LD_MAP_FD(BPF_REG_1, 0), | |
1903 | BPF_MOV64_REG(BPF_REG_3, BPF_REG_2), | |
1904 | BPF_MOV64_IMM(BPF_REG_4, 0), | |
5aa5bd14 DB |
1905 | BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, |
1906 | BPF_FUNC_map_update_elem), | |
1633ac0a AY |
1907 | BPF_MOV64_IMM(BPF_REG_0, 0), |
1908 | BPF_EXIT_INSN(), | |
1909 | }, | |
5aa5bd14 | 1910 | .fixup_map1 = { 5 }, |
1633ac0a AY |
1911 | .result_unpriv = ACCEPT, |
1912 | .result = ACCEPT, | |
1913 | .prog_type = BPF_PROG_TYPE_XDP, | |
1914 | }, | |
1915 | { | |
1916 | "helper access to packet: test2, unchecked packet_ptr", | |
1917 | .insns = { | |
1918 | BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1, | |
1919 | offsetof(struct xdp_md, data)), | |
1920 | BPF_LD_MAP_FD(BPF_REG_1, 0), | |
5aa5bd14 DB |
1921 | BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, |
1922 | BPF_FUNC_map_lookup_elem), | |
1633ac0a AY |
1923 | BPF_MOV64_IMM(BPF_REG_0, 0), |
1924 | BPF_EXIT_INSN(), | |
1925 | }, | |
5aa5bd14 | 1926 | .fixup_map1 = { 1 }, |
1633ac0a AY |
1927 | .result = REJECT, |
1928 | .errstr = "invalid access to packet", | |
1929 | .prog_type = BPF_PROG_TYPE_XDP, | |
1930 | }, | |
1931 | { | |
1932 | "helper access to packet: test3, variable add", | |
1933 | .insns = { | |
1934 | BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1, | |
1935 | offsetof(struct xdp_md, data)), | |
1936 | BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1, | |
1937 | offsetof(struct xdp_md, data_end)), | |
1938 | BPF_MOV64_REG(BPF_REG_4, BPF_REG_2), | |
1939 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_4, 8), | |
1940 | BPF_JMP_REG(BPF_JGT, BPF_REG_4, BPF_REG_3, 10), | |
1941 | BPF_LDX_MEM(BPF_B, BPF_REG_5, BPF_REG_2, 0), | |
1942 | BPF_MOV64_REG(BPF_REG_4, BPF_REG_2), | |
1943 | BPF_ALU64_REG(BPF_ADD, BPF_REG_4, BPF_REG_5), | |
1944 | BPF_MOV64_REG(BPF_REG_5, BPF_REG_4), | |
1945 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_5, 8), | |
1946 | BPF_JMP_REG(BPF_JGT, BPF_REG_5, BPF_REG_3, 4), | |
1947 | BPF_LD_MAP_FD(BPF_REG_1, 0), | |
1948 | BPF_MOV64_REG(BPF_REG_2, BPF_REG_4), | |
5aa5bd14 DB |
1949 | BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, |
1950 | BPF_FUNC_map_lookup_elem), | |
1633ac0a AY |
1951 | BPF_MOV64_IMM(BPF_REG_0, 0), |
1952 | BPF_EXIT_INSN(), | |
1953 | }, | |
5aa5bd14 | 1954 | .fixup_map1 = { 11 }, |
1633ac0a AY |
1955 | .result = ACCEPT, |
1956 | .prog_type = BPF_PROG_TYPE_XDP, | |
1957 | }, | |
1958 | { | |
1959 | "helper access to packet: test4, packet_ptr with bad range", | |
1960 | .insns = { | |
1961 | BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1, | |
1962 | offsetof(struct xdp_md, data)), | |
1963 | BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1, | |
1964 | offsetof(struct xdp_md, data_end)), | |
1965 | BPF_MOV64_REG(BPF_REG_4, BPF_REG_2), | |
1966 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_4, 4), | |
1967 | BPF_JMP_REG(BPF_JGT, BPF_REG_4, BPF_REG_3, 2), | |
1968 | BPF_MOV64_IMM(BPF_REG_0, 0), | |
1969 | BPF_EXIT_INSN(), | |
1970 | BPF_LD_MAP_FD(BPF_REG_1, 0), | |
5aa5bd14 DB |
1971 | BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, |
1972 | BPF_FUNC_map_lookup_elem), | |
1633ac0a AY |
1973 | BPF_MOV64_IMM(BPF_REG_0, 0), |
1974 | BPF_EXIT_INSN(), | |
1975 | }, | |
5aa5bd14 | 1976 | .fixup_map1 = { 7 }, |
1633ac0a AY |
1977 | .result = REJECT, |
1978 | .errstr = "invalid access to packet", | |
1979 | .prog_type = BPF_PROG_TYPE_XDP, | |
1980 | }, | |
1981 | { | |
1982 | "helper access to packet: test5, packet_ptr with too short range", | |
1983 | .insns = { | |
1984 | BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1, | |
1985 | offsetof(struct xdp_md, data)), | |
1986 | BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1, | |
1987 | offsetof(struct xdp_md, data_end)), | |
1988 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, 1), | |
1989 | BPF_MOV64_REG(BPF_REG_4, BPF_REG_2), | |
1990 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_4, 7), | |
1991 | BPF_JMP_REG(BPF_JGT, BPF_REG_4, BPF_REG_3, 3), | |
1992 | BPF_LD_MAP_FD(BPF_REG_1, 0), | |
5aa5bd14 DB |
1993 | BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, |
1994 | BPF_FUNC_map_lookup_elem), | |
1633ac0a AY |
1995 | BPF_MOV64_IMM(BPF_REG_0, 0), |
1996 | BPF_EXIT_INSN(), | |
1997 | }, | |
5aa5bd14 | 1998 | .fixup_map1 = { 6 }, |
1633ac0a AY |
1999 | .result = REJECT, |
2000 | .errstr = "invalid access to packet", | |
2001 | .prog_type = BPF_PROG_TYPE_XDP, | |
2002 | }, | |
7d95b0ab DB |
2003 | { |
2004 | "helper access to packet: test6, cls valid packet_ptr range", | |
2005 | .insns = { | |
2006 | BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1, | |
2007 | offsetof(struct __sk_buff, data)), | |
2008 | BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1, | |
2009 | offsetof(struct __sk_buff, data_end)), | |
2010 | BPF_MOV64_REG(BPF_REG_1, BPF_REG_2), | |
2011 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, 8), | |
2012 | BPF_JMP_REG(BPF_JGT, BPF_REG_1, BPF_REG_3, 5), | |
2013 | BPF_LD_MAP_FD(BPF_REG_1, 0), | |
2014 | BPF_MOV64_REG(BPF_REG_3, BPF_REG_2), | |
2015 | BPF_MOV64_IMM(BPF_REG_4, 0), | |
5aa5bd14 DB |
2016 | BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, |
2017 | BPF_FUNC_map_update_elem), | |
7d95b0ab DB |
2018 | BPF_MOV64_IMM(BPF_REG_0, 0), |
2019 | BPF_EXIT_INSN(), | |
2020 | }, | |
5aa5bd14 | 2021 | .fixup_map1 = { 5 }, |
7d95b0ab DB |
2022 | .result = ACCEPT, |
2023 | .prog_type = BPF_PROG_TYPE_SCHED_CLS, | |
2024 | }, | |
2025 | { | |
2026 | "helper access to packet: test7, cls unchecked packet_ptr", | |
2027 | .insns = { | |
2028 | BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1, | |
2029 | offsetof(struct __sk_buff, data)), | |
2030 | BPF_LD_MAP_FD(BPF_REG_1, 0), | |
5aa5bd14 DB |
2031 | BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, |
2032 | BPF_FUNC_map_lookup_elem), | |
7d95b0ab DB |
2033 | BPF_MOV64_IMM(BPF_REG_0, 0), |
2034 | BPF_EXIT_INSN(), | |
2035 | }, | |
5aa5bd14 | 2036 | .fixup_map1 = { 1 }, |
7d95b0ab DB |
2037 | .result = REJECT, |
2038 | .errstr = "invalid access to packet", | |
2039 | .prog_type = BPF_PROG_TYPE_SCHED_CLS, | |
2040 | }, | |
2041 | { | |
2042 | "helper access to packet: test8, cls variable add", | |
2043 | .insns = { | |
2044 | BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1, | |
2045 | offsetof(struct __sk_buff, data)), | |
2046 | BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1, | |
2047 | offsetof(struct __sk_buff, data_end)), | |
2048 | BPF_MOV64_REG(BPF_REG_4, BPF_REG_2), | |
2049 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_4, 8), | |
2050 | BPF_JMP_REG(BPF_JGT, BPF_REG_4, BPF_REG_3, 10), | |
2051 | BPF_LDX_MEM(BPF_B, BPF_REG_5, BPF_REG_2, 0), | |
2052 | BPF_MOV64_REG(BPF_REG_4, BPF_REG_2), | |
2053 | BPF_ALU64_REG(BPF_ADD, BPF_REG_4, BPF_REG_5), | |
2054 | BPF_MOV64_REG(BPF_REG_5, BPF_REG_4), | |
2055 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_5, 8), | |
2056 | BPF_JMP_REG(BPF_JGT, BPF_REG_5, BPF_REG_3, 4), | |
2057 | BPF_LD_MAP_FD(BPF_REG_1, 0), | |
2058 | BPF_MOV64_REG(BPF_REG_2, BPF_REG_4), | |
5aa5bd14 DB |
2059 | BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, |
2060 | BPF_FUNC_map_lookup_elem), | |
7d95b0ab DB |
2061 | BPF_MOV64_IMM(BPF_REG_0, 0), |
2062 | BPF_EXIT_INSN(), | |
2063 | }, | |
5aa5bd14 | 2064 | .fixup_map1 = { 11 }, |
7d95b0ab DB |
2065 | .result = ACCEPT, |
2066 | .prog_type = BPF_PROG_TYPE_SCHED_CLS, | |
2067 | }, | |
2068 | { | |
2069 | "helper access to packet: test9, cls packet_ptr with bad range", | |
2070 | .insns = { | |
2071 | BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1, | |
2072 | offsetof(struct __sk_buff, data)), | |
2073 | BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1, | |
2074 | offsetof(struct __sk_buff, data_end)), | |
2075 | BPF_MOV64_REG(BPF_REG_4, BPF_REG_2), | |
2076 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_4, 4), | |
2077 | BPF_JMP_REG(BPF_JGT, BPF_REG_4, BPF_REG_3, 2), | |
2078 | BPF_MOV64_IMM(BPF_REG_0, 0), | |
2079 | BPF_EXIT_INSN(), | |
2080 | BPF_LD_MAP_FD(BPF_REG_1, 0), | |
5aa5bd14 DB |
2081 | BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, |
2082 | BPF_FUNC_map_lookup_elem), | |
7d95b0ab DB |
2083 | BPF_MOV64_IMM(BPF_REG_0, 0), |
2084 | BPF_EXIT_INSN(), | |
2085 | }, | |
5aa5bd14 | 2086 | .fixup_map1 = { 7 }, |
7d95b0ab DB |
2087 | .result = REJECT, |
2088 | .errstr = "invalid access to packet", | |
2089 | .prog_type = BPF_PROG_TYPE_SCHED_CLS, | |
2090 | }, | |
2091 | { | |
2092 | "helper access to packet: test10, cls packet_ptr with too short range", | |
2093 | .insns = { | |
2094 | BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1, | |
2095 | offsetof(struct __sk_buff, data)), | |
2096 | BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1, | |
2097 | offsetof(struct __sk_buff, data_end)), | |
2098 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, 1), | |
2099 | BPF_MOV64_REG(BPF_REG_4, BPF_REG_2), | |
2100 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_4, 7), | |
2101 | BPF_JMP_REG(BPF_JGT, BPF_REG_4, BPF_REG_3, 3), | |
2102 | BPF_LD_MAP_FD(BPF_REG_1, 0), | |
5aa5bd14 DB |
2103 | BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, |
2104 | BPF_FUNC_map_lookup_elem), | |
7d95b0ab DB |
2105 | BPF_MOV64_IMM(BPF_REG_0, 0), |
2106 | BPF_EXIT_INSN(), | |
2107 | }, | |
5aa5bd14 | 2108 | .fixup_map1 = { 6 }, |
7d95b0ab DB |
2109 | .result = REJECT, |
2110 | .errstr = "invalid access to packet", | |
2111 | .prog_type = BPF_PROG_TYPE_SCHED_CLS, | |
2112 | }, | |
2113 | { | |
2114 | "helper access to packet: test11, cls unsuitable helper 1", | |
2115 | .insns = { | |
2116 | BPF_LDX_MEM(BPF_W, BPF_REG_6, BPF_REG_1, | |
2117 | offsetof(struct __sk_buff, data)), | |
2118 | BPF_LDX_MEM(BPF_W, BPF_REG_7, BPF_REG_1, | |
2119 | offsetof(struct __sk_buff, data_end)), | |
2120 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_6, 1), | |
2121 | BPF_MOV64_REG(BPF_REG_3, BPF_REG_6), | |
2122 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_3, 7), | |
2123 | BPF_JMP_REG(BPF_JGT, BPF_REG_3, BPF_REG_7, 4), | |
2124 | BPF_MOV64_IMM(BPF_REG_2, 0), | |
2125 | BPF_MOV64_IMM(BPF_REG_4, 42), | |
2126 | BPF_MOV64_IMM(BPF_REG_5, 0), | |
5aa5bd14 DB |
2127 | BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, |
2128 | BPF_FUNC_skb_store_bytes), | |
7d95b0ab DB |
2129 | BPF_MOV64_IMM(BPF_REG_0, 0), |
2130 | BPF_EXIT_INSN(), | |
2131 | }, | |
2132 | .result = REJECT, | |
2133 | .errstr = "helper access to the packet", | |
2134 | .prog_type = BPF_PROG_TYPE_SCHED_CLS, | |
2135 | }, | |
2136 | { | |
2137 | "helper access to packet: test12, cls unsuitable helper 2", | |
2138 | .insns = { | |
2139 | BPF_LDX_MEM(BPF_W, BPF_REG_6, BPF_REG_1, | |
2140 | offsetof(struct __sk_buff, data)), | |
2141 | BPF_LDX_MEM(BPF_W, BPF_REG_7, BPF_REG_1, | |
2142 | offsetof(struct __sk_buff, data_end)), | |
2143 | BPF_MOV64_REG(BPF_REG_3, BPF_REG_6), | |
2144 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_6, 8), | |
2145 | BPF_JMP_REG(BPF_JGT, BPF_REG_6, BPF_REG_7, 3), | |
2146 | BPF_MOV64_IMM(BPF_REG_2, 0), | |
2147 | BPF_MOV64_IMM(BPF_REG_4, 4), | |
5aa5bd14 DB |
2148 | BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, |
2149 | BPF_FUNC_skb_load_bytes), | |
7d95b0ab DB |
2150 | BPF_MOV64_IMM(BPF_REG_0, 0), |
2151 | BPF_EXIT_INSN(), | |
2152 | }, | |
2153 | .result = REJECT, | |
2154 | .errstr = "helper access to the packet", | |
2155 | .prog_type = BPF_PROG_TYPE_SCHED_CLS, | |
2156 | }, | |
2157 | { | |
2158 | "helper access to packet: test13, cls helper ok", | |
2159 | .insns = { | |
2160 | BPF_LDX_MEM(BPF_W, BPF_REG_6, BPF_REG_1, | |
2161 | offsetof(struct __sk_buff, data)), | |
2162 | BPF_LDX_MEM(BPF_W, BPF_REG_7, BPF_REG_1, | |
2163 | offsetof(struct __sk_buff, data_end)), | |
2164 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_6, 1), | |
2165 | BPF_MOV64_REG(BPF_REG_1, BPF_REG_6), | |
2166 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, 7), | |
2167 | BPF_JMP_REG(BPF_JGT, BPF_REG_1, BPF_REG_7, 6), | |
2168 | BPF_MOV64_REG(BPF_REG_1, BPF_REG_6), | |
2169 | BPF_MOV64_IMM(BPF_REG_2, 4), | |
2170 | BPF_MOV64_IMM(BPF_REG_3, 0), | |
2171 | BPF_MOV64_IMM(BPF_REG_4, 0), | |
2172 | BPF_MOV64_IMM(BPF_REG_5, 0), | |
5aa5bd14 DB |
2173 | BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, |
2174 | BPF_FUNC_csum_diff), | |
7d95b0ab DB |
2175 | BPF_MOV64_IMM(BPF_REG_0, 0), |
2176 | BPF_EXIT_INSN(), | |
2177 | }, | |
2178 | .result = ACCEPT, | |
2179 | .prog_type = BPF_PROG_TYPE_SCHED_CLS, | |
2180 | }, | |
2181 | { | |
2182 | "helper access to packet: test14, cls helper fail sub", | |
2183 | .insns = { | |
2184 | BPF_LDX_MEM(BPF_W, BPF_REG_6, BPF_REG_1, | |
2185 | offsetof(struct __sk_buff, data)), | |
2186 | BPF_LDX_MEM(BPF_W, BPF_REG_7, BPF_REG_1, | |
2187 | offsetof(struct __sk_buff, data_end)), | |
2188 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_6, 1), | |
2189 | BPF_MOV64_REG(BPF_REG_1, BPF_REG_6), | |
2190 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, 7), | |
2191 | BPF_JMP_REG(BPF_JGT, BPF_REG_1, BPF_REG_7, 6), | |
2192 | BPF_ALU64_IMM(BPF_SUB, BPF_REG_1, 4), | |
2193 | BPF_MOV64_IMM(BPF_REG_2, 4), | |
2194 | BPF_MOV64_IMM(BPF_REG_3, 0), | |
2195 | BPF_MOV64_IMM(BPF_REG_4, 0), | |
2196 | BPF_MOV64_IMM(BPF_REG_5, 0), | |
5aa5bd14 DB |
2197 | BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, |
2198 | BPF_FUNC_csum_diff), | |
7d95b0ab DB |
2199 | BPF_MOV64_IMM(BPF_REG_0, 0), |
2200 | BPF_EXIT_INSN(), | |
2201 | }, | |
2202 | .result = REJECT, | |
2203 | .errstr = "type=inv expected=fp", | |
2204 | .prog_type = BPF_PROG_TYPE_SCHED_CLS, | |
2205 | }, | |
2206 | { | |
2207 | "helper access to packet: test15, cls helper fail range 1", | |
2208 | .insns = { | |
2209 | BPF_LDX_MEM(BPF_W, BPF_REG_6, BPF_REG_1, | |
2210 | offsetof(struct __sk_buff, data)), | |
2211 | BPF_LDX_MEM(BPF_W, BPF_REG_7, BPF_REG_1, | |
2212 | offsetof(struct __sk_buff, data_end)), | |
2213 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_6, 1), | |
2214 | BPF_MOV64_REG(BPF_REG_1, BPF_REG_6), | |
2215 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, 7), | |
2216 | BPF_JMP_REG(BPF_JGT, BPF_REG_1, BPF_REG_7, 6), | |
2217 | BPF_MOV64_REG(BPF_REG_1, BPF_REG_6), | |
2218 | BPF_MOV64_IMM(BPF_REG_2, 8), | |
2219 | BPF_MOV64_IMM(BPF_REG_3, 0), | |
2220 | BPF_MOV64_IMM(BPF_REG_4, 0), | |
2221 | BPF_MOV64_IMM(BPF_REG_5, 0), | |
5aa5bd14 DB |
2222 | BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, |
2223 | BPF_FUNC_csum_diff), | |
7d95b0ab DB |
2224 | BPF_MOV64_IMM(BPF_REG_0, 0), |
2225 | BPF_EXIT_INSN(), | |
2226 | }, | |
2227 | .result = REJECT, | |
2228 | .errstr = "invalid access to packet", | |
2229 | .prog_type = BPF_PROG_TYPE_SCHED_CLS, | |
2230 | }, | |
2231 | { | |
2232 | "helper access to packet: test16, cls helper fail range 2", | |
2233 | .insns = { | |
2234 | BPF_LDX_MEM(BPF_W, BPF_REG_6, BPF_REG_1, | |
2235 | offsetof(struct __sk_buff, data)), | |
2236 | BPF_LDX_MEM(BPF_W, BPF_REG_7, BPF_REG_1, | |
2237 | offsetof(struct __sk_buff, data_end)), | |
2238 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_6, 1), | |
2239 | BPF_MOV64_REG(BPF_REG_1, BPF_REG_6), | |
2240 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, 7), | |
2241 | BPF_JMP_REG(BPF_JGT, BPF_REG_1, BPF_REG_7, 6), | |
2242 | BPF_MOV64_REG(BPF_REG_1, BPF_REG_6), | |
2243 | BPF_MOV64_IMM(BPF_REG_2, -9), | |
2244 | BPF_MOV64_IMM(BPF_REG_3, 0), | |
2245 | BPF_MOV64_IMM(BPF_REG_4, 0), | |
2246 | BPF_MOV64_IMM(BPF_REG_5, 0), | |
5aa5bd14 DB |
2247 | BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, |
2248 | BPF_FUNC_csum_diff), | |
7d95b0ab DB |
2249 | BPF_MOV64_IMM(BPF_REG_0, 0), |
2250 | BPF_EXIT_INSN(), | |
2251 | }, | |
2252 | .result = REJECT, | |
2253 | .errstr = "invalid access to packet", | |
2254 | .prog_type = BPF_PROG_TYPE_SCHED_CLS, | |
2255 | }, | |
2256 | { | |
2257 | "helper access to packet: test17, cls helper fail range 3", | |
2258 | .insns = { | |
2259 | BPF_LDX_MEM(BPF_W, BPF_REG_6, BPF_REG_1, | |
2260 | offsetof(struct __sk_buff, data)), | |
2261 | BPF_LDX_MEM(BPF_W, BPF_REG_7, BPF_REG_1, | |
2262 | offsetof(struct __sk_buff, data_end)), | |
2263 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_6, 1), | |
2264 | BPF_MOV64_REG(BPF_REG_1, BPF_REG_6), | |
2265 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, 7), | |
2266 | BPF_JMP_REG(BPF_JGT, BPF_REG_1, BPF_REG_7, 6), | |
2267 | BPF_MOV64_REG(BPF_REG_1, BPF_REG_6), | |
2268 | BPF_MOV64_IMM(BPF_REG_2, ~0), | |
2269 | BPF_MOV64_IMM(BPF_REG_3, 0), | |
2270 | BPF_MOV64_IMM(BPF_REG_4, 0), | |
2271 | BPF_MOV64_IMM(BPF_REG_5, 0), | |
5aa5bd14 DB |
2272 | BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, |
2273 | BPF_FUNC_csum_diff), | |
7d95b0ab DB |
2274 | BPF_MOV64_IMM(BPF_REG_0, 0), |
2275 | BPF_EXIT_INSN(), | |
2276 | }, | |
2277 | .result = REJECT, | |
2278 | .errstr = "invalid access to packet", | |
2279 | .prog_type = BPF_PROG_TYPE_SCHED_CLS, | |
2280 | }, | |
2281 | { | |
2282 | "helper access to packet: test18, cls helper fail range zero", | |
2283 | .insns = { | |
2284 | BPF_LDX_MEM(BPF_W, BPF_REG_6, BPF_REG_1, | |
2285 | offsetof(struct __sk_buff, data)), | |
2286 | BPF_LDX_MEM(BPF_W, BPF_REG_7, BPF_REG_1, | |
2287 | offsetof(struct __sk_buff, data_end)), | |
2288 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_6, 1), | |
2289 | BPF_MOV64_REG(BPF_REG_1, BPF_REG_6), | |
2290 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, 7), | |
2291 | BPF_JMP_REG(BPF_JGT, BPF_REG_1, BPF_REG_7, 6), | |
2292 | BPF_MOV64_REG(BPF_REG_1, BPF_REG_6), | |
2293 | BPF_MOV64_IMM(BPF_REG_2, 0), | |
2294 | BPF_MOV64_IMM(BPF_REG_3, 0), | |
2295 | BPF_MOV64_IMM(BPF_REG_4, 0), | |
2296 | BPF_MOV64_IMM(BPF_REG_5, 0), | |
5aa5bd14 DB |
2297 | BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, |
2298 | BPF_FUNC_csum_diff), | |
7d95b0ab DB |
2299 | BPF_MOV64_IMM(BPF_REG_0, 0), |
2300 | BPF_EXIT_INSN(), | |
2301 | }, | |
2302 | .result = REJECT, | |
2303 | .errstr = "invalid access to packet", | |
2304 | .prog_type = BPF_PROG_TYPE_SCHED_CLS, | |
2305 | }, | |
2306 | { | |
2307 | "helper access to packet: test19, pkt end as input", | |
2308 | .insns = { | |
2309 | BPF_LDX_MEM(BPF_W, BPF_REG_6, BPF_REG_1, | |
2310 | offsetof(struct __sk_buff, data)), | |
2311 | BPF_LDX_MEM(BPF_W, BPF_REG_7, BPF_REG_1, | |
2312 | offsetof(struct __sk_buff, data_end)), | |
2313 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_6, 1), | |
2314 | BPF_MOV64_REG(BPF_REG_1, BPF_REG_6), | |
2315 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, 7), | |
2316 | BPF_JMP_REG(BPF_JGT, BPF_REG_1, BPF_REG_7, 6), | |
2317 | BPF_MOV64_REG(BPF_REG_1, BPF_REG_7), | |
2318 | BPF_MOV64_IMM(BPF_REG_2, 4), | |
2319 | BPF_MOV64_IMM(BPF_REG_3, 0), | |
2320 | BPF_MOV64_IMM(BPF_REG_4, 0), | |
2321 | BPF_MOV64_IMM(BPF_REG_5, 0), | |
5aa5bd14 DB |
2322 | BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, |
2323 | BPF_FUNC_csum_diff), | |
7d95b0ab DB |
2324 | BPF_MOV64_IMM(BPF_REG_0, 0), |
2325 | BPF_EXIT_INSN(), | |
2326 | }, | |
2327 | .result = REJECT, | |
2328 | .errstr = "R1 type=pkt_end expected=fp", | |
2329 | .prog_type = BPF_PROG_TYPE_SCHED_CLS, | |
2330 | }, | |
2331 | { | |
2332 | "helper access to packet: test20, wrong reg", | |
2333 | .insns = { | |
2334 | BPF_LDX_MEM(BPF_W, BPF_REG_6, BPF_REG_1, | |
2335 | offsetof(struct __sk_buff, data)), | |
2336 | BPF_LDX_MEM(BPF_W, BPF_REG_7, BPF_REG_1, | |
2337 | offsetof(struct __sk_buff, data_end)), | |
2338 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_6, 1), | |
2339 | BPF_MOV64_REG(BPF_REG_1, BPF_REG_6), | |
2340 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, 7), | |
2341 | BPF_JMP_REG(BPF_JGT, BPF_REG_1, BPF_REG_7, 6), | |
2342 | BPF_MOV64_IMM(BPF_REG_2, 4), | |
2343 | BPF_MOV64_IMM(BPF_REG_3, 0), | |
2344 | BPF_MOV64_IMM(BPF_REG_4, 0), | |
2345 | BPF_MOV64_IMM(BPF_REG_5, 0), | |
5aa5bd14 DB |
2346 | BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, |
2347 | BPF_FUNC_csum_diff), | |
7d95b0ab DB |
2348 | BPF_MOV64_IMM(BPF_REG_0, 0), |
2349 | BPF_EXIT_INSN(), | |
2350 | }, | |
2351 | .result = REJECT, | |
2352 | .errstr = "invalid access to packet", | |
2353 | .prog_type = BPF_PROG_TYPE_SCHED_CLS, | |
2354 | }, | |
48461135 JB |
2355 | { |
2356 | "valid map access into an array with a constant", | |
2357 | .insns = { | |
2358 | BPF_ST_MEM(BPF_DW, BPF_REG_10, -8, 0), | |
2359 | BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), | |
2360 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8), | |
2361 | BPF_LD_MAP_FD(BPF_REG_1, 0), | |
5aa5bd14 DB |
2362 | BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, |
2363 | BPF_FUNC_map_lookup_elem), | |
48461135 | 2364 | BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 1), |
5aa5bd14 DB |
2365 | BPF_ST_MEM(BPF_DW, BPF_REG_0, 0, |
2366 | offsetof(struct test_val, foo)), | |
48461135 JB |
2367 | BPF_EXIT_INSN(), |
2368 | }, | |
5aa5bd14 | 2369 | .fixup_map2 = { 3 }, |
48461135 JB |
2370 | .errstr_unpriv = "R0 leaks addr", |
2371 | .result_unpriv = REJECT, | |
2372 | .result = ACCEPT, | |
2373 | }, | |
2374 | { | |
2375 | "valid map access into an array with a register", | |
2376 | .insns = { | |
2377 | BPF_ST_MEM(BPF_DW, BPF_REG_10, -8, 0), | |
2378 | BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), | |
2379 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8), | |
2380 | BPF_LD_MAP_FD(BPF_REG_1, 0), | |
5aa5bd14 DB |
2381 | BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, |
2382 | BPF_FUNC_map_lookup_elem), | |
48461135 JB |
2383 | BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 4), |
2384 | BPF_MOV64_IMM(BPF_REG_1, 4), | |
2385 | BPF_ALU64_IMM(BPF_LSH, BPF_REG_1, 2), | |
2386 | BPF_ALU64_REG(BPF_ADD, BPF_REG_0, BPF_REG_1), | |
5aa5bd14 DB |
2387 | BPF_ST_MEM(BPF_DW, BPF_REG_0, 0, |
2388 | offsetof(struct test_val, foo)), | |
48461135 JB |
2389 | BPF_EXIT_INSN(), |
2390 | }, | |
5aa5bd14 DB |
2391 | .fixup_map2 = { 3 }, |
2392 | .errstr_unpriv = "R0 pointer arithmetic prohibited", | |
48461135 JB |
2393 | .result_unpriv = REJECT, |
2394 | .result = ACCEPT, | |
2395 | }, | |
2396 | { | |
2397 | "valid map access into an array with a variable", | |
2398 | .insns = { | |
2399 | BPF_ST_MEM(BPF_DW, BPF_REG_10, -8, 0), | |
2400 | BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), | |
2401 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8), | |
2402 | BPF_LD_MAP_FD(BPF_REG_1, 0), | |
5aa5bd14 DB |
2403 | BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, |
2404 | BPF_FUNC_map_lookup_elem), | |
48461135 JB |
2405 | BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 5), |
2406 | BPF_LDX_MEM(BPF_W, BPF_REG_1, BPF_REG_0, 0), | |
2407 | BPF_JMP_IMM(BPF_JGE, BPF_REG_1, MAX_ENTRIES, 3), | |
2408 | BPF_ALU64_IMM(BPF_LSH, BPF_REG_1, 2), | |
2409 | BPF_ALU64_REG(BPF_ADD, BPF_REG_0, BPF_REG_1), | |
5aa5bd14 DB |
2410 | BPF_ST_MEM(BPF_DW, BPF_REG_0, 0, |
2411 | offsetof(struct test_val, foo)), | |
48461135 JB |
2412 | BPF_EXIT_INSN(), |
2413 | }, | |
5aa5bd14 DB |
2414 | .fixup_map2 = { 3 }, |
2415 | .errstr_unpriv = "R0 pointer arithmetic prohibited", | |
48461135 JB |
2416 | .result_unpriv = REJECT, |
2417 | .result = ACCEPT, | |
2418 | }, | |
2419 | { | |
2420 | "valid map access into an array with a signed variable", | |
2421 | .insns = { | |
2422 | BPF_ST_MEM(BPF_DW, BPF_REG_10, -8, 0), | |
2423 | BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), | |
2424 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8), | |
2425 | BPF_LD_MAP_FD(BPF_REG_1, 0), | |
5aa5bd14 DB |
2426 | BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, |
2427 | BPF_FUNC_map_lookup_elem), | |
48461135 JB |
2428 | BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 9), |
2429 | BPF_LDX_MEM(BPF_W, BPF_REG_1, BPF_REG_0, 0), | |
2430 | BPF_JMP_IMM(BPF_JSGT, BPF_REG_1, 0xffffffff, 1), | |
2431 | BPF_MOV32_IMM(BPF_REG_1, 0), | |
2432 | BPF_MOV32_IMM(BPF_REG_2, MAX_ENTRIES), | |
2433 | BPF_JMP_REG(BPF_JSGT, BPF_REG_2, BPF_REG_1, 1), | |
2434 | BPF_MOV32_IMM(BPF_REG_1, 0), | |
2435 | BPF_ALU32_IMM(BPF_LSH, BPF_REG_1, 2), | |
2436 | BPF_ALU64_REG(BPF_ADD, BPF_REG_0, BPF_REG_1), | |
5aa5bd14 DB |
2437 | BPF_ST_MEM(BPF_DW, BPF_REG_0, 0, |
2438 | offsetof(struct test_val, foo)), | |
48461135 JB |
2439 | BPF_EXIT_INSN(), |
2440 | }, | |
5aa5bd14 DB |
2441 | .fixup_map2 = { 3 }, |
2442 | .errstr_unpriv = "R0 pointer arithmetic prohibited", | |
48461135 JB |
2443 | .result_unpriv = REJECT, |
2444 | .result = ACCEPT, | |
2445 | }, | |
2446 | { | |
2447 | "invalid map access into an array with a constant", | |
2448 | .insns = { | |
2449 | BPF_ST_MEM(BPF_DW, BPF_REG_10, -8, 0), | |
2450 | BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), | |
2451 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8), | |
2452 | BPF_LD_MAP_FD(BPF_REG_1, 0), | |
5aa5bd14 DB |
2453 | BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, |
2454 | BPF_FUNC_map_lookup_elem), | |
48461135 JB |
2455 | BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 1), |
2456 | BPF_ST_MEM(BPF_DW, BPF_REG_0, (MAX_ENTRIES + 1) << 2, | |
2457 | offsetof(struct test_val, foo)), | |
2458 | BPF_EXIT_INSN(), | |
2459 | }, | |
5aa5bd14 | 2460 | .fixup_map2 = { 3 }, |
48461135 JB |
2461 | .errstr = "invalid access to map value, value_size=48 off=48 size=8", |
2462 | .result = REJECT, | |
2463 | }, | |
2464 | { | |
2465 | "invalid map access into an array with a register", | |
2466 | .insns = { | |
2467 | BPF_ST_MEM(BPF_DW, BPF_REG_10, -8, 0), | |
2468 | BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), | |
2469 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8), | |
2470 | BPF_LD_MAP_FD(BPF_REG_1, 0), | |
5aa5bd14 DB |
2471 | BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, |
2472 | BPF_FUNC_map_lookup_elem), | |
48461135 JB |
2473 | BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 4), |
2474 | BPF_MOV64_IMM(BPF_REG_1, MAX_ENTRIES + 1), | |
2475 | BPF_ALU64_IMM(BPF_LSH, BPF_REG_1, 2), | |
2476 | BPF_ALU64_REG(BPF_ADD, BPF_REG_0, BPF_REG_1), | |
5aa5bd14 DB |
2477 | BPF_ST_MEM(BPF_DW, BPF_REG_0, 0, |
2478 | offsetof(struct test_val, foo)), | |
48461135 JB |
2479 | BPF_EXIT_INSN(), |
2480 | }, | |
5aa5bd14 DB |
2481 | .fixup_map2 = { 3 }, |
2482 | .errstr_unpriv = "R0 pointer arithmetic prohibited", | |
48461135 | 2483 | .errstr = "R0 min value is outside of the array range", |
5aa5bd14 | 2484 | .result_unpriv = REJECT, |
48461135 JB |
2485 | .result = REJECT, |
2486 | }, | |
2487 | { | |
2488 | "invalid map access into an array with a variable", | |
2489 | .insns = { | |
2490 | BPF_ST_MEM(BPF_DW, BPF_REG_10, -8, 0), | |
2491 | BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), | |
2492 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8), | |
2493 | BPF_LD_MAP_FD(BPF_REG_1, 0), | |
5aa5bd14 DB |
2494 | BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, |
2495 | BPF_FUNC_map_lookup_elem), | |
48461135 JB |
2496 | BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 4), |
2497 | BPF_LDX_MEM(BPF_W, BPF_REG_1, BPF_REG_0, 0), | |
2498 | BPF_ALU64_IMM(BPF_LSH, BPF_REG_1, 2), | |
2499 | BPF_ALU64_REG(BPF_ADD, BPF_REG_0, BPF_REG_1), | |
5aa5bd14 DB |
2500 | BPF_ST_MEM(BPF_DW, BPF_REG_0, 0, |
2501 | offsetof(struct test_val, foo)), | |
48461135 JB |
2502 | BPF_EXIT_INSN(), |
2503 | }, | |
5aa5bd14 DB |
2504 | .fixup_map2 = { 3 }, |
2505 | .errstr_unpriv = "R0 pointer arithmetic prohibited", | |
48461135 | 2506 | .errstr = "R0 min value is negative, either use unsigned index or do a if (index >=0) check.", |
5aa5bd14 | 2507 | .result_unpriv = REJECT, |
48461135 JB |
2508 | .result = REJECT, |
2509 | }, | |
2510 | { | |
2511 | "invalid map access into an array with no floor check", | |
2512 | .insns = { | |
2513 | BPF_ST_MEM(BPF_DW, BPF_REG_10, -8, 0), | |
2514 | BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), | |
2515 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8), | |
2516 | BPF_LD_MAP_FD(BPF_REG_1, 0), | |
5aa5bd14 DB |
2517 | BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, |
2518 | BPF_FUNC_map_lookup_elem), | |
48461135 JB |
2519 | BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 7), |
2520 | BPF_LDX_MEM(BPF_W, BPF_REG_1, BPF_REG_0, 0), | |
2521 | BPF_MOV32_IMM(BPF_REG_2, MAX_ENTRIES), | |
2522 | BPF_JMP_REG(BPF_JSGT, BPF_REG_2, BPF_REG_1, 1), | |
2523 | BPF_MOV32_IMM(BPF_REG_1, 0), | |
2524 | BPF_ALU32_IMM(BPF_LSH, BPF_REG_1, 2), | |
2525 | BPF_ALU64_REG(BPF_ADD, BPF_REG_0, BPF_REG_1), | |
5aa5bd14 DB |
2526 | BPF_ST_MEM(BPF_DW, BPF_REG_0, 0, |
2527 | offsetof(struct test_val, foo)), | |
48461135 JB |
2528 | BPF_EXIT_INSN(), |
2529 | }, | |
5aa5bd14 DB |
2530 | .fixup_map2 = { 3 }, |
2531 | .errstr_unpriv = "R0 pointer arithmetic prohibited", | |
48461135 | 2532 | .errstr = "R0 min value is negative, either use unsigned index or do a if (index >=0) check.", |
5aa5bd14 | 2533 | .result_unpriv = REJECT, |
48461135 JB |
2534 | .result = REJECT, |
2535 | }, | |
2536 | { | |
2537 | "invalid map access into an array with a invalid max check", | |
2538 | .insns = { | |
2539 | BPF_ST_MEM(BPF_DW, BPF_REG_10, -8, 0), | |
2540 | BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), | |
2541 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8), | |
2542 | BPF_LD_MAP_FD(BPF_REG_1, 0), | |
5aa5bd14 DB |
2543 | BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, |
2544 | BPF_FUNC_map_lookup_elem), | |
48461135 JB |
2545 | BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 7), |
2546 | BPF_LDX_MEM(BPF_W, BPF_REG_1, BPF_REG_0, 0), | |
2547 | BPF_MOV32_IMM(BPF_REG_2, MAX_ENTRIES + 1), | |
2548 | BPF_JMP_REG(BPF_JGT, BPF_REG_2, BPF_REG_1, 1), | |
2549 | BPF_MOV32_IMM(BPF_REG_1, 0), | |
2550 | BPF_ALU32_IMM(BPF_LSH, BPF_REG_1, 2), | |
2551 | BPF_ALU64_REG(BPF_ADD, BPF_REG_0, BPF_REG_1), | |
5aa5bd14 DB |
2552 | BPF_ST_MEM(BPF_DW, BPF_REG_0, 0, |
2553 | offsetof(struct test_val, foo)), | |
48461135 JB |
2554 | BPF_EXIT_INSN(), |
2555 | }, | |
5aa5bd14 DB |
2556 | .fixup_map2 = { 3 }, |
2557 | .errstr_unpriv = "R0 pointer arithmetic prohibited", | |
48461135 | 2558 | .errstr = "invalid access to map value, value_size=48 off=44 size=8", |
5aa5bd14 | 2559 | .result_unpriv = REJECT, |
48461135 JB |
2560 | .result = REJECT, |
2561 | }, | |
2562 | { | |
2563 | "invalid map access into an array with a invalid max check", | |
2564 | .insns = { | |
2565 | BPF_ST_MEM(BPF_DW, BPF_REG_10, -8, 0), | |
2566 | BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), | |
2567 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8), | |
2568 | BPF_LD_MAP_FD(BPF_REG_1, 0), | |
5aa5bd14 DB |
2569 | BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, |
2570 | BPF_FUNC_map_lookup_elem), | |
48461135 JB |
2571 | BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 10), |
2572 | BPF_MOV64_REG(BPF_REG_8, BPF_REG_0), | |
2573 | BPF_ST_MEM(BPF_DW, BPF_REG_10, -8, 0), | |
2574 | BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), | |
2575 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8), | |
2576 | BPF_LD_MAP_FD(BPF_REG_1, 0), | |
5aa5bd14 DB |
2577 | BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, |
2578 | BPF_FUNC_map_lookup_elem), | |
48461135 JB |
2579 | BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 2), |
2580 | BPF_ALU64_REG(BPF_ADD, BPF_REG_0, BPF_REG_8), | |
5aa5bd14 DB |
2581 | BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_0, |
2582 | offsetof(struct test_val, foo)), | |
48461135 JB |
2583 | BPF_EXIT_INSN(), |
2584 | }, | |
5aa5bd14 DB |
2585 | .fixup_map2 = { 3, 11 }, |
2586 | .errstr_unpriv = "R0 pointer arithmetic prohibited", | |
48461135 | 2587 | .errstr = "R0 min value is negative, either use unsigned index or do a if (index >=0) check.", |
5aa5bd14 | 2588 | .result_unpriv = REJECT, |
48461135 JB |
2589 | .result = REJECT, |
2590 | }, | |
57a09bf0 TG |
2591 | { |
2592 | "multiple registers share map_lookup_elem result", | |
2593 | .insns = { | |
2594 | BPF_MOV64_IMM(BPF_REG_1, 10), | |
2595 | BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_1, -8), | |
2596 | BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), | |
2597 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8), | |
2598 | BPF_LD_MAP_FD(BPF_REG_1, 0), | |
2599 | BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, | |
2600 | BPF_FUNC_map_lookup_elem), | |
2601 | BPF_MOV64_REG(BPF_REG_4, BPF_REG_0), | |
2602 | BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 1), | |
2603 | BPF_ST_MEM(BPF_DW, BPF_REG_4, 0, 0), | |
2604 | BPF_EXIT_INSN(), | |
2605 | }, | |
2606 | .fixup_map1 = { 4 }, | |
2607 | .result = ACCEPT, | |
2608 | .prog_type = BPF_PROG_TYPE_SCHED_CLS | |
2609 | }, | |
2610 | { | |
2611 | "invalid memory access with multiple map_lookup_elem calls", | |
2612 | .insns = { | |
2613 | BPF_MOV64_IMM(BPF_REG_1, 10), | |
2614 | BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_1, -8), | |
2615 | BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), | |
2616 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8), | |
2617 | BPF_LD_MAP_FD(BPF_REG_1, 0), | |
2618 | BPF_MOV64_REG(BPF_REG_8, BPF_REG_1), | |
2619 | BPF_MOV64_REG(BPF_REG_7, BPF_REG_2), | |
2620 | BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, | |
2621 | BPF_FUNC_map_lookup_elem), | |
2622 | BPF_MOV64_REG(BPF_REG_4, BPF_REG_0), | |
2623 | BPF_MOV64_REG(BPF_REG_1, BPF_REG_8), | |
2624 | BPF_MOV64_REG(BPF_REG_2, BPF_REG_7), | |
2625 | BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, | |
2626 | BPF_FUNC_map_lookup_elem), | |
2627 | BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 1), | |
2628 | BPF_ST_MEM(BPF_DW, BPF_REG_4, 0, 0), | |
2629 | BPF_EXIT_INSN(), | |
2630 | }, | |
2631 | .fixup_map1 = { 4 }, | |
2632 | .result = REJECT, | |
2633 | .errstr = "R4 !read_ok", | |
2634 | .prog_type = BPF_PROG_TYPE_SCHED_CLS | |
2635 | }, | |
2636 | { | |
2637 | "valid indirect map_lookup_elem access with 2nd lookup in branch", | |
2638 | .insns = { | |
2639 | BPF_MOV64_IMM(BPF_REG_1, 10), | |
2640 | BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_1, -8), | |
2641 | BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), | |
2642 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8), | |
2643 | BPF_LD_MAP_FD(BPF_REG_1, 0), | |
2644 | BPF_MOV64_REG(BPF_REG_8, BPF_REG_1), | |
2645 | BPF_MOV64_REG(BPF_REG_7, BPF_REG_2), | |
2646 | BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, | |
2647 | BPF_FUNC_map_lookup_elem), | |
2648 | BPF_MOV64_IMM(BPF_REG_2, 10), | |
2649 | BPF_JMP_IMM(BPF_JNE, BPF_REG_2, 0, 3), | |
2650 | BPF_MOV64_REG(BPF_REG_1, BPF_REG_8), | |
2651 | BPF_MOV64_REG(BPF_REG_2, BPF_REG_7), | |
2652 | BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, | |
2653 | BPF_FUNC_map_lookup_elem), | |
2654 | BPF_MOV64_REG(BPF_REG_4, BPF_REG_0), | |
2655 | BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 1), | |
2656 | BPF_ST_MEM(BPF_DW, BPF_REG_4, 0, 0), | |
2657 | BPF_EXIT_INSN(), | |
2658 | }, | |
2659 | .fixup_map1 = { 4 }, | |
2660 | .result = ACCEPT, | |
2661 | .prog_type = BPF_PROG_TYPE_SCHED_CLS | |
2662 | }, | |
e9548901 JB |
2663 | { |
2664 | "invalid map access from else condition", | |
2665 | .insns = { | |
2666 | BPF_ST_MEM(BPF_DW, BPF_REG_10, -8, 0), | |
2667 | BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), | |
2668 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8), | |
2669 | BPF_LD_MAP_FD(BPF_REG_1, 0), | |
2670 | BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, BPF_FUNC_map_lookup_elem), | |
2671 | BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 6), | |
2672 | BPF_LDX_MEM(BPF_W, BPF_REG_1, BPF_REG_0, 0), | |
2673 | BPF_JMP_IMM(BPF_JGE, BPF_REG_1, MAX_ENTRIES-1, 1), | |
2674 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, 1), | |
2675 | BPF_ALU64_IMM(BPF_LSH, BPF_REG_1, 2), | |
2676 | BPF_ALU64_REG(BPF_ADD, BPF_REG_0, BPF_REG_1), | |
2677 | BPF_ST_MEM(BPF_DW, BPF_REG_0, 0, offsetof(struct test_val, foo)), | |
2678 | BPF_EXIT_INSN(), | |
2679 | }, | |
2680 | .fixup_map2 = { 3 }, | |
2681 | .errstr = "R0 unbounded memory access, make sure to bounds check any array access into a map", | |
2682 | .result = REJECT, | |
2683 | .errstr_unpriv = "R0 pointer arithmetic prohibited", | |
2684 | .result_unpriv = REJECT, | |
2685 | }, | |
3c731eba AS |
2686 | }; |
2687 | ||
5aa5bd14 | 2688 | static int probe_filter_length(const struct bpf_insn *fp) |
3c731eba | 2689 | { |
5aa5bd14 | 2690 | int len; |
3c731eba AS |
2691 | |
2692 | for (len = MAX_INSNS - 1; len > 0; --len) | |
2693 | if (fp[len].code != 0 || fp[len].imm != 0) | |
2694 | break; | |
3c731eba AS |
2695 | return len + 1; |
2696 | } | |
2697 | ||
5aa5bd14 | 2698 | static int create_map(uint32_t size_value, uint32_t max_elem) |
3c731eba | 2699 | { |
5aa5bd14 | 2700 | int fd; |
3c731eba | 2701 | |
5aa5bd14 DB |
2702 | fd = bpf_map_create(BPF_MAP_TYPE_HASH, sizeof(long long), |
2703 | size_value, max_elem, BPF_F_NO_PREALLOC); | |
2704 | if (fd < 0) | |
2705 | printf("Failed to create hash map '%s'!\n", strerror(errno)); | |
bf508877 | 2706 | |
5aa5bd14 | 2707 | return fd; |
bf508877 AS |
2708 | } |
2709 | ||
2710 | static int create_prog_array(void) | |
2711 | { | |
5aa5bd14 | 2712 | int fd; |
bf508877 | 2713 | |
5aa5bd14 DB |
2714 | fd = bpf_map_create(BPF_MAP_TYPE_PROG_ARRAY, sizeof(int), |
2715 | sizeof(int), 4, 0); | |
2716 | if (fd < 0) | |
2717 | printf("Failed to create prog array '%s'!\n", strerror(errno)); | |
3c731eba | 2718 | |
5aa5bd14 | 2719 | return fd; |
3c731eba AS |
2720 | } |
2721 | ||
5aa5bd14 DB |
2722 | static char bpf_vlog[32768]; |
2723 | ||
2724 | static void do_test_fixup(struct bpf_test *test, struct bpf_insn *prog, | |
2725 | int *fd_f1, int *fd_f2, int *fd_f3) | |
3c731eba | 2726 | { |
5aa5bd14 DB |
2727 | int *fixup_map1 = test->fixup_map1; |
2728 | int *fixup_map2 = test->fixup_map2; | |
2729 | int *fixup_prog = test->fixup_prog; | |
3c731eba | 2730 | |
5aa5bd14 DB |
2731 | /* Allocating HTs with 1 elem is fine here, since we only test |
2732 | * for verifier and not do a runtime lookup, so the only thing | |
2733 | * that really matters is value size in this case. | |
2734 | */ | |
2735 | if (*fixup_map1) { | |
2736 | *fd_f1 = create_map(sizeof(long long), 1); | |
2737 | do { | |
2738 | prog[*fixup_map1].imm = *fd_f1; | |
2739 | fixup_map1++; | |
2740 | } while (*fixup_map1); | |
2741 | } | |
3c731eba | 2742 | |
5aa5bd14 DB |
2743 | if (*fixup_map2) { |
2744 | *fd_f2 = create_map(sizeof(struct test_val), 1); | |
2745 | do { | |
2746 | prog[*fixup_map2].imm = *fd_f2; | |
2747 | fixup_map2++; | |
2748 | } while (*fixup_map2); | |
2749 | } | |
3c731eba | 2750 | |
5aa5bd14 DB |
2751 | if (*fixup_prog) { |
2752 | *fd_f3 = create_prog_array(); | |
2753 | do { | |
2754 | prog[*fixup_prog].imm = *fd_f3; | |
2755 | fixup_prog++; | |
2756 | } while (*fixup_prog); | |
2757 | } | |
2758 | } | |
bf508877 | 2759 | |
5aa5bd14 DB |
2760 | static void do_test_single(struct bpf_test *test, bool unpriv, |
2761 | int *passes, int *errors) | |
2762 | { | |
2763 | struct bpf_insn *prog = test->insns; | |
2764 | int prog_len = probe_filter_length(prog); | |
2765 | int prog_type = test->prog_type; | |
2766 | int fd_f1 = -1, fd_f2 = -1, fd_f3 = -1; | |
2767 | int fd_prog, expected_ret; | |
2768 | const char *expected_err; | |
48461135 | 2769 | |
5aa5bd14 | 2770 | do_test_fixup(test, prog, &fd_f1, &fd_f2, &fd_f3); |
3c731eba | 2771 | |
5aa5bd14 DB |
2772 | fd_prog = bpf_prog_load(prog_type ? : BPF_PROG_TYPE_SOCKET_FILTER, |
2773 | prog, prog_len * sizeof(struct bpf_insn), | |
2774 | "GPL", bpf_vlog, sizeof(bpf_vlog)); | |
3c731eba | 2775 | |
5aa5bd14 DB |
2776 | expected_ret = unpriv && test->result_unpriv != UNDEF ? |
2777 | test->result_unpriv : test->result; | |
2778 | expected_err = unpriv && test->errstr_unpriv ? | |
2779 | test->errstr_unpriv : test->errstr; | |
2780 | if (expected_ret == ACCEPT) { | |
2781 | if (fd_prog < 0) { | |
2782 | printf("FAIL\nFailed to load prog '%s'!\n", | |
2783 | strerror(errno)); | |
2784 | goto fail_log; | |
2785 | } | |
2786 | } else { | |
2787 | if (fd_prog >= 0) { | |
2788 | printf("FAIL\nUnexpected success to load!\n"); | |
2789 | goto fail_log; | |
2790 | } | |
2791 | if (!strstr(bpf_vlog, expected_err)) { | |
2792 | printf("FAIL\nUnexpected error message!\n"); | |
2793 | goto fail_log; | |
2794 | } | |
2795 | } | |
bf508877 | 2796 | |
5aa5bd14 DB |
2797 | (*passes)++; |
2798 | printf("OK\n"); | |
2799 | close_fds: | |
2800 | close(fd_prog); | |
2801 | close(fd_f1); | |
2802 | close(fd_f2); | |
2803 | close(fd_f3); | |
2804 | sched_yield(); | |
2805 | return; | |
2806 | fail_log: | |
2807 | (*errors)++; | |
2808 | printf("%s", bpf_vlog); | |
2809 | goto close_fds; | |
2810 | } | |
bf508877 | 2811 | |
5aa5bd14 DB |
2812 | static int do_test(bool unpriv, unsigned int from, unsigned int to) |
2813 | { | |
2814 | int i, passes = 0, errors = 0; | |
3c731eba | 2815 | |
5aa5bd14 DB |
2816 | for (i = from; i < to; i++) { |
2817 | struct bpf_test *test = &tests[i]; | |
3c731eba | 2818 | |
5aa5bd14 DB |
2819 | /* Program types that are not supported by non-root we |
2820 | * skip right away. | |
2821 | */ | |
2822 | if (unpriv && test->prog_type) | |
2823 | continue; | |
2824 | ||
2825 | printf("#%d %s ", i, test->descr); | |
2826 | do_test_single(test, unpriv, &passes, &errors); | |
3c731eba AS |
2827 | } |
2828 | ||
5aa5bd14 DB |
2829 | printf("Summary: %d PASSED, %d FAILED\n", passes, errors); |
2830 | return errors ? -errors : 0; | |
3c731eba AS |
2831 | } |
2832 | ||
5aa5bd14 | 2833 | int main(int argc, char **argv) |
3c731eba | 2834 | { |
5aa5bd14 DB |
2835 | struct rlimit rinf = { RLIM_INFINITY, RLIM_INFINITY }; |
2836 | struct rlimit rlim = { 1 << 20, 1 << 20 }; | |
2837 | unsigned int from = 0, to = ARRAY_SIZE(tests); | |
2838 | bool unpriv = geteuid() != 0; | |
2839 | ||
2840 | if (argc == 3) { | |
2841 | unsigned int l = atoi(argv[argc - 2]); | |
2842 | unsigned int u = atoi(argv[argc - 1]); | |
2843 | ||
2844 | if (l < to && u < to) { | |
2845 | from = l; | |
2846 | to = u + 1; | |
2847 | } | |
2848 | } else if (argc == 2) { | |
2849 | unsigned int t = atoi(argv[argc - 1]); | |
2850 | ||
2851 | if (t < to) { | |
2852 | from = t; | |
2853 | to = t + 1; | |
2854 | } | |
2855 | } | |
bf508877 | 2856 | |
5aa5bd14 DB |
2857 | setrlimit(RLIMIT_MEMLOCK, unpriv ? &rlim : &rinf); |
2858 | return do_test(unpriv, from, to); | |
3c731eba | 2859 | } |