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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 | |
1da8ac7c AS |
11 | #include <asm/types.h> |
12 | #include <linux/types.h> | |
702498a1 | 13 | #include <stdint.h> |
3c731eba | 14 | #include <stdio.h> |
702498a1 | 15 | #include <stdlib.h> |
3c731eba | 16 | #include <unistd.h> |
3c731eba | 17 | #include <errno.h> |
3c731eba | 18 | #include <string.h> |
614cd3bd | 19 | #include <stddef.h> |
bf508877 | 20 | #include <stdbool.h> |
5aa5bd14 DB |
21 | #include <sched.h> |
22 | ||
d02d8986 | 23 | #include <sys/capability.h> |
bf508877 | 24 | #include <sys/resource.h> |
3c731eba | 25 | |
5aa5bd14 DB |
26 | #include <linux/unistd.h> |
27 | #include <linux/filter.h> | |
28 | #include <linux/bpf_perf_event.h> | |
29 | #include <linux/bpf.h> | |
30 | ||
2ee89fb9 MS |
31 | #include <bpf/bpf.h> |
32 | ||
02ea80b1 DB |
33 | #ifdef HAVE_GENHDR |
34 | # include "autoconf.h" | |
35 | #else | |
36 | # if defined(__i386) || defined(__x86_64) || defined(__s390x__) || defined(__aarch64__) | |
37 | # define CONFIG_HAVE_EFFICIENT_UNALIGNED_ACCESS 1 | |
38 | # endif | |
39 | #endif | |
40 | ||
5aa5bd14 DB |
41 | #include "../../../include/linux/filter.h" |
42 | ||
5aa5bd14 DB |
43 | #ifndef ARRAY_SIZE |
44 | # define ARRAY_SIZE(x) (sizeof(x) / sizeof((x)[0])) | |
45 | #endif | |
3c731eba | 46 | |
5aa5bd14 DB |
47 | #define MAX_INSNS 512 |
48 | #define MAX_FIXUPS 8 | |
bf508877 | 49 | |
02ea80b1 DB |
50 | #define F_NEEDS_EFFICIENT_UNALIGNED_ACCESS (1 << 0) |
51 | ||
3c731eba AS |
52 | struct bpf_test { |
53 | const char *descr; | |
54 | struct bpf_insn insns[MAX_INSNS]; | |
5aa5bd14 DB |
55 | int fixup_map1[MAX_FIXUPS]; |
56 | int fixup_map2[MAX_FIXUPS]; | |
57 | int fixup_prog[MAX_FIXUPS]; | |
3c731eba | 58 | const char *errstr; |
bf508877 | 59 | const char *errstr_unpriv; |
3c731eba | 60 | enum { |
bf508877 | 61 | UNDEF, |
3c731eba AS |
62 | ACCEPT, |
63 | REJECT | |
bf508877 | 64 | } result, result_unpriv; |
d691f9e8 | 65 | enum bpf_prog_type prog_type; |
02ea80b1 | 66 | uint8_t flags; |
3c731eba AS |
67 | }; |
68 | ||
48461135 JB |
69 | /* Note we want this to be 64 bit aligned so that the end of our array is |
70 | * actually the end of the structure. | |
71 | */ | |
72 | #define MAX_ENTRIES 11 | |
5aa5bd14 | 73 | |
48461135 | 74 | struct test_val { |
5aa5bd14 | 75 | unsigned int index; |
48461135 JB |
76 | int foo[MAX_ENTRIES]; |
77 | }; | |
78 | ||
3c731eba AS |
79 | static struct bpf_test tests[] = { |
80 | { | |
81 | "add+sub+mul", | |
82 | .insns = { | |
83 | BPF_MOV64_IMM(BPF_REG_1, 1), | |
84 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, 2), | |
85 | BPF_MOV64_IMM(BPF_REG_2, 3), | |
86 | BPF_ALU64_REG(BPF_SUB, BPF_REG_1, BPF_REG_2), | |
87 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, -1), | |
88 | BPF_ALU64_IMM(BPF_MUL, BPF_REG_1, 3), | |
89 | BPF_MOV64_REG(BPF_REG_0, BPF_REG_1), | |
90 | BPF_EXIT_INSN(), | |
91 | }, | |
92 | .result = ACCEPT, | |
93 | }, | |
94 | { | |
95 | "unreachable", | |
96 | .insns = { | |
97 | BPF_EXIT_INSN(), | |
98 | BPF_EXIT_INSN(), | |
99 | }, | |
100 | .errstr = "unreachable", | |
101 | .result = REJECT, | |
102 | }, | |
103 | { | |
104 | "unreachable2", | |
105 | .insns = { | |
106 | BPF_JMP_IMM(BPF_JA, 0, 0, 1), | |
107 | BPF_JMP_IMM(BPF_JA, 0, 0, 0), | |
108 | BPF_EXIT_INSN(), | |
109 | }, | |
110 | .errstr = "unreachable", | |
111 | .result = REJECT, | |
112 | }, | |
113 | { | |
114 | "out of range jump", | |
115 | .insns = { | |
116 | BPF_JMP_IMM(BPF_JA, 0, 0, 1), | |
117 | BPF_EXIT_INSN(), | |
118 | }, | |
119 | .errstr = "jump out of range", | |
120 | .result = REJECT, | |
121 | }, | |
122 | { | |
123 | "out of range jump2", | |
124 | .insns = { | |
125 | BPF_JMP_IMM(BPF_JA, 0, 0, -2), | |
126 | BPF_EXIT_INSN(), | |
127 | }, | |
128 | .errstr = "jump out of range", | |
129 | .result = REJECT, | |
130 | }, | |
131 | { | |
132 | "test1 ld_imm64", | |
133 | .insns = { | |
134 | BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, 0, 1), | |
135 | BPF_LD_IMM64(BPF_REG_0, 0), | |
136 | BPF_LD_IMM64(BPF_REG_0, 0), | |
137 | BPF_LD_IMM64(BPF_REG_0, 1), | |
138 | BPF_LD_IMM64(BPF_REG_0, 1), | |
139 | BPF_MOV64_IMM(BPF_REG_0, 2), | |
140 | BPF_EXIT_INSN(), | |
141 | }, | |
142 | .errstr = "invalid BPF_LD_IMM insn", | |
bf508877 | 143 | .errstr_unpriv = "R1 pointer comparison", |
3c731eba AS |
144 | .result = REJECT, |
145 | }, | |
146 | { | |
147 | "test2 ld_imm64", | |
148 | .insns = { | |
149 | BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, 0, 1), | |
150 | BPF_LD_IMM64(BPF_REG_0, 0), | |
151 | BPF_LD_IMM64(BPF_REG_0, 0), | |
152 | BPF_LD_IMM64(BPF_REG_0, 1), | |
153 | BPF_LD_IMM64(BPF_REG_0, 1), | |
154 | BPF_EXIT_INSN(), | |
155 | }, | |
156 | .errstr = "invalid BPF_LD_IMM insn", | |
bf508877 | 157 | .errstr_unpriv = "R1 pointer comparison", |
3c731eba AS |
158 | .result = REJECT, |
159 | }, | |
160 | { | |
161 | "test3 ld_imm64", | |
162 | .insns = { | |
163 | BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, 0, 1), | |
164 | BPF_RAW_INSN(BPF_LD | BPF_IMM | BPF_DW, 0, 0, 0, 0), | |
165 | BPF_LD_IMM64(BPF_REG_0, 0), | |
166 | BPF_LD_IMM64(BPF_REG_0, 0), | |
167 | BPF_LD_IMM64(BPF_REG_0, 1), | |
168 | BPF_LD_IMM64(BPF_REG_0, 1), | |
169 | BPF_EXIT_INSN(), | |
170 | }, | |
171 | .errstr = "invalid bpf_ld_imm64 insn", | |
172 | .result = REJECT, | |
173 | }, | |
174 | { | |
175 | "test4 ld_imm64", | |
176 | .insns = { | |
177 | BPF_RAW_INSN(BPF_LD | BPF_IMM | BPF_DW, 0, 0, 0, 0), | |
178 | BPF_EXIT_INSN(), | |
179 | }, | |
180 | .errstr = "invalid bpf_ld_imm64 insn", | |
181 | .result = REJECT, | |
182 | }, | |
183 | { | |
184 | "test5 ld_imm64", | |
185 | .insns = { | |
186 | BPF_RAW_INSN(BPF_LD | BPF_IMM | BPF_DW, 0, 0, 0, 0), | |
187 | }, | |
188 | .errstr = "invalid bpf_ld_imm64 insn", | |
189 | .result = REJECT, | |
190 | }, | |
191 | { | |
192 | "no bpf_exit", | |
193 | .insns = { | |
194 | BPF_ALU64_REG(BPF_MOV, BPF_REG_0, BPF_REG_2), | |
195 | }, | |
196 | .errstr = "jump out of range", | |
197 | .result = REJECT, | |
198 | }, | |
199 | { | |
200 | "loop (back-edge)", | |
201 | .insns = { | |
202 | BPF_JMP_IMM(BPF_JA, 0, 0, -1), | |
203 | BPF_EXIT_INSN(), | |
204 | }, | |
205 | .errstr = "back-edge", | |
206 | .result = REJECT, | |
207 | }, | |
208 | { | |
209 | "loop2 (back-edge)", | |
210 | .insns = { | |
211 | BPF_MOV64_REG(BPF_REG_1, BPF_REG_0), | |
212 | BPF_MOV64_REG(BPF_REG_2, BPF_REG_0), | |
213 | BPF_MOV64_REG(BPF_REG_3, BPF_REG_0), | |
214 | BPF_JMP_IMM(BPF_JA, 0, 0, -4), | |
215 | BPF_EXIT_INSN(), | |
216 | }, | |
217 | .errstr = "back-edge", | |
218 | .result = REJECT, | |
219 | }, | |
220 | { | |
221 | "conditional loop", | |
222 | .insns = { | |
223 | BPF_MOV64_REG(BPF_REG_1, BPF_REG_0), | |
224 | BPF_MOV64_REG(BPF_REG_2, BPF_REG_0), | |
225 | BPF_MOV64_REG(BPF_REG_3, BPF_REG_0), | |
226 | BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, 0, -3), | |
227 | BPF_EXIT_INSN(), | |
228 | }, | |
229 | .errstr = "back-edge", | |
230 | .result = REJECT, | |
231 | }, | |
232 | { | |
233 | "read uninitialized register", | |
234 | .insns = { | |
235 | BPF_MOV64_REG(BPF_REG_0, BPF_REG_2), | |
236 | BPF_EXIT_INSN(), | |
237 | }, | |
238 | .errstr = "R2 !read_ok", | |
239 | .result = REJECT, | |
240 | }, | |
241 | { | |
242 | "read invalid register", | |
243 | .insns = { | |
244 | BPF_MOV64_REG(BPF_REG_0, -1), | |
245 | BPF_EXIT_INSN(), | |
246 | }, | |
247 | .errstr = "R15 is invalid", | |
248 | .result = REJECT, | |
249 | }, | |
250 | { | |
251 | "program doesn't init R0 before exit", | |
252 | .insns = { | |
253 | BPF_ALU64_REG(BPF_MOV, BPF_REG_2, BPF_REG_1), | |
254 | BPF_EXIT_INSN(), | |
255 | }, | |
256 | .errstr = "R0 !read_ok", | |
257 | .result = REJECT, | |
258 | }, | |
32bf08a6 AS |
259 | { |
260 | "program doesn't init R0 before exit in all branches", | |
261 | .insns = { | |
262 | BPF_JMP_IMM(BPF_JGE, BPF_REG_1, 0, 2), | |
263 | BPF_MOV64_IMM(BPF_REG_0, 1), | |
264 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_0, 2), | |
265 | BPF_EXIT_INSN(), | |
266 | }, | |
267 | .errstr = "R0 !read_ok", | |
bf508877 | 268 | .errstr_unpriv = "R1 pointer comparison", |
32bf08a6 AS |
269 | .result = REJECT, |
270 | }, | |
3c731eba AS |
271 | { |
272 | "stack out of bounds", | |
273 | .insns = { | |
274 | BPF_ST_MEM(BPF_DW, BPF_REG_10, 8, 0), | |
275 | BPF_EXIT_INSN(), | |
276 | }, | |
277 | .errstr = "invalid stack", | |
278 | .result = REJECT, | |
279 | }, | |
280 | { | |
281 | "invalid call insn1", | |
282 | .insns = { | |
283 | BPF_RAW_INSN(BPF_JMP | BPF_CALL | BPF_X, 0, 0, 0, 0), | |
284 | BPF_EXIT_INSN(), | |
285 | }, | |
286 | .errstr = "BPF_CALL uses reserved", | |
287 | .result = REJECT, | |
288 | }, | |
289 | { | |
290 | "invalid call insn2", | |
291 | .insns = { | |
292 | BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 1, 0), | |
293 | BPF_EXIT_INSN(), | |
294 | }, | |
295 | .errstr = "BPF_CALL uses reserved", | |
296 | .result = REJECT, | |
297 | }, | |
298 | { | |
299 | "invalid function call", | |
300 | .insns = { | |
301 | BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, 1234567), | |
302 | BPF_EXIT_INSN(), | |
303 | }, | |
e00c7b21 | 304 | .errstr = "invalid func unknown#1234567", |
3c731eba AS |
305 | .result = REJECT, |
306 | }, | |
307 | { | |
308 | "uninitialized stack1", | |
309 | .insns = { | |
310 | BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), | |
311 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8), | |
312 | BPF_LD_MAP_FD(BPF_REG_1, 0), | |
5aa5bd14 DB |
313 | BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, |
314 | BPF_FUNC_map_lookup_elem), | |
3c731eba AS |
315 | BPF_EXIT_INSN(), |
316 | }, | |
5aa5bd14 | 317 | .fixup_map1 = { 2 }, |
3c731eba AS |
318 | .errstr = "invalid indirect read from stack", |
319 | .result = REJECT, | |
320 | }, | |
321 | { | |
322 | "uninitialized stack2", | |
323 | .insns = { | |
324 | BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), | |
325 | BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_2, -8), | |
326 | BPF_EXIT_INSN(), | |
327 | }, | |
328 | .errstr = "invalid read from stack", | |
329 | .result = REJECT, | |
330 | }, | |
7d95b0ab DB |
331 | { |
332 | "invalid argument register", | |
333 | .insns = { | |
5aa5bd14 DB |
334 | BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, |
335 | BPF_FUNC_get_cgroup_classid), | |
336 | BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, | |
337 | BPF_FUNC_get_cgroup_classid), | |
7d95b0ab DB |
338 | BPF_EXIT_INSN(), |
339 | }, | |
340 | .errstr = "R1 !read_ok", | |
341 | .result = REJECT, | |
342 | .prog_type = BPF_PROG_TYPE_SCHED_CLS, | |
343 | }, | |
344 | { | |
345 | "non-invalid argument register", | |
346 | .insns = { | |
347 | BPF_ALU64_REG(BPF_MOV, BPF_REG_6, BPF_REG_1), | |
5aa5bd14 DB |
348 | BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, |
349 | BPF_FUNC_get_cgroup_classid), | |
7d95b0ab | 350 | BPF_ALU64_REG(BPF_MOV, BPF_REG_1, BPF_REG_6), |
5aa5bd14 DB |
351 | BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, |
352 | BPF_FUNC_get_cgroup_classid), | |
7d95b0ab DB |
353 | BPF_EXIT_INSN(), |
354 | }, | |
355 | .result = ACCEPT, | |
356 | .prog_type = BPF_PROG_TYPE_SCHED_CLS, | |
357 | }, | |
3c731eba AS |
358 | { |
359 | "check valid spill/fill", | |
360 | .insns = { | |
361 | /* spill R1(ctx) into stack */ | |
362 | BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_1, -8), | |
3c731eba AS |
363 | /* fill it back into R2 */ |
364 | BPF_LDX_MEM(BPF_DW, BPF_REG_2, BPF_REG_10, -8), | |
3c731eba | 365 | /* should be able to access R0 = *(R2 + 8) */ |
f91fe17e DB |
366 | /* BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_2, 8), */ |
367 | BPF_MOV64_REG(BPF_REG_0, BPF_REG_2), | |
3c731eba AS |
368 | BPF_EXIT_INSN(), |
369 | }, | |
bf508877 | 370 | .errstr_unpriv = "R0 leaks addr", |
3c731eba | 371 | .result = ACCEPT, |
bf508877 | 372 | .result_unpriv = REJECT, |
3c731eba | 373 | }, |
3f2050e2 DB |
374 | { |
375 | "check valid spill/fill, skb mark", | |
376 | .insns = { | |
377 | BPF_ALU64_REG(BPF_MOV, BPF_REG_6, BPF_REG_1), | |
378 | BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_6, -8), | |
379 | BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_10, -8), | |
380 | BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_0, | |
381 | offsetof(struct __sk_buff, mark)), | |
382 | BPF_EXIT_INSN(), | |
383 | }, | |
384 | .result = ACCEPT, | |
385 | .result_unpriv = ACCEPT, | |
386 | }, | |
3c731eba AS |
387 | { |
388 | "check corrupted spill/fill", | |
389 | .insns = { | |
390 | /* spill R1(ctx) into stack */ | |
391 | BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_1, -8), | |
3c731eba AS |
392 | /* mess up with R1 pointer on stack */ |
393 | BPF_ST_MEM(BPF_B, BPF_REG_10, -7, 0x23), | |
3c731eba AS |
394 | /* fill back into R0 should fail */ |
395 | BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_10, -8), | |
3c731eba AS |
396 | BPF_EXIT_INSN(), |
397 | }, | |
bf508877 | 398 | .errstr_unpriv = "attempt to corrupt spilled", |
3c731eba AS |
399 | .errstr = "corrupted spill", |
400 | .result = REJECT, | |
401 | }, | |
402 | { | |
403 | "invalid src register in STX", | |
404 | .insns = { | |
405 | BPF_STX_MEM(BPF_B, BPF_REG_10, -1, -1), | |
406 | BPF_EXIT_INSN(), | |
407 | }, | |
408 | .errstr = "R15 is invalid", | |
409 | .result = REJECT, | |
410 | }, | |
411 | { | |
412 | "invalid dst register in STX", | |
413 | .insns = { | |
414 | BPF_STX_MEM(BPF_B, 14, BPF_REG_10, -1), | |
415 | BPF_EXIT_INSN(), | |
416 | }, | |
417 | .errstr = "R14 is invalid", | |
418 | .result = REJECT, | |
419 | }, | |
420 | { | |
421 | "invalid dst register in ST", | |
422 | .insns = { | |
423 | BPF_ST_MEM(BPF_B, 14, -1, -1), | |
424 | BPF_EXIT_INSN(), | |
425 | }, | |
426 | .errstr = "R14 is invalid", | |
427 | .result = REJECT, | |
428 | }, | |
429 | { | |
430 | "invalid src register in LDX", | |
431 | .insns = { | |
432 | BPF_LDX_MEM(BPF_B, BPF_REG_0, 12, 0), | |
433 | BPF_EXIT_INSN(), | |
434 | }, | |
435 | .errstr = "R12 is invalid", | |
436 | .result = REJECT, | |
437 | }, | |
438 | { | |
439 | "invalid dst register in LDX", | |
440 | .insns = { | |
441 | BPF_LDX_MEM(BPF_B, 11, BPF_REG_1, 0), | |
442 | BPF_EXIT_INSN(), | |
443 | }, | |
444 | .errstr = "R11 is invalid", | |
445 | .result = REJECT, | |
446 | }, | |
447 | { | |
448 | "junk insn", | |
449 | .insns = { | |
450 | BPF_RAW_INSN(0, 0, 0, 0, 0), | |
451 | BPF_EXIT_INSN(), | |
452 | }, | |
453 | .errstr = "invalid BPF_LD_IMM", | |
454 | .result = REJECT, | |
455 | }, | |
456 | { | |
457 | "junk insn2", | |
458 | .insns = { | |
459 | BPF_RAW_INSN(1, 0, 0, 0, 0), | |
460 | BPF_EXIT_INSN(), | |
461 | }, | |
462 | .errstr = "BPF_LDX uses reserved fields", | |
463 | .result = REJECT, | |
464 | }, | |
465 | { | |
466 | "junk insn3", | |
467 | .insns = { | |
468 | BPF_RAW_INSN(-1, 0, 0, 0, 0), | |
469 | BPF_EXIT_INSN(), | |
470 | }, | |
471 | .errstr = "invalid BPF_ALU opcode f0", | |
472 | .result = REJECT, | |
473 | }, | |
474 | { | |
475 | "junk insn4", | |
476 | .insns = { | |
477 | BPF_RAW_INSN(-1, -1, -1, -1, -1), | |
478 | BPF_EXIT_INSN(), | |
479 | }, | |
480 | .errstr = "invalid BPF_ALU opcode f0", | |
481 | .result = REJECT, | |
482 | }, | |
483 | { | |
484 | "junk insn5", | |
485 | .insns = { | |
486 | BPF_RAW_INSN(0x7f, -1, -1, -1, -1), | |
487 | BPF_EXIT_INSN(), | |
488 | }, | |
489 | .errstr = "BPF_ALU uses reserved fields", | |
490 | .result = REJECT, | |
491 | }, | |
492 | { | |
493 | "misaligned read from stack", | |
494 | .insns = { | |
495 | BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), | |
496 | BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_2, -4), | |
497 | BPF_EXIT_INSN(), | |
498 | }, | |
499 | .errstr = "misaligned access", | |
500 | .result = REJECT, | |
501 | }, | |
502 | { | |
503 | "invalid map_fd for function call", | |
504 | .insns = { | |
505 | BPF_ST_MEM(BPF_DW, BPF_REG_10, -8, 0), | |
506 | BPF_ALU64_REG(BPF_MOV, BPF_REG_2, BPF_REG_10), | |
507 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8), | |
508 | BPF_LD_MAP_FD(BPF_REG_1, 0), | |
5aa5bd14 DB |
509 | BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, |
510 | BPF_FUNC_map_delete_elem), | |
3c731eba AS |
511 | BPF_EXIT_INSN(), |
512 | }, | |
513 | .errstr = "fd 0 is not pointing to valid bpf_map", | |
514 | .result = REJECT, | |
515 | }, | |
516 | { | |
517 | "don't check return value before access", | |
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_ST_MEM(BPF_DW, BPF_REG_0, 0, 0), |
526 | BPF_EXIT_INSN(), | |
527 | }, | |
5aa5bd14 | 528 | .fixup_map1 = { 3 }, |
3c731eba AS |
529 | .errstr = "R0 invalid mem access 'map_value_or_null'", |
530 | .result = REJECT, | |
531 | }, | |
532 | { | |
533 | "access memory with incorrect alignment", | |
534 | .insns = { | |
535 | BPF_ST_MEM(BPF_DW, BPF_REG_10, -8, 0), | |
536 | BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), | |
537 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8), | |
538 | BPF_LD_MAP_FD(BPF_REG_1, 0), | |
5aa5bd14 DB |
539 | BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, |
540 | BPF_FUNC_map_lookup_elem), | |
3c731eba AS |
541 | BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 1), |
542 | BPF_ST_MEM(BPF_DW, BPF_REG_0, 4, 0), | |
543 | BPF_EXIT_INSN(), | |
544 | }, | |
5aa5bd14 | 545 | .fixup_map1 = { 3 }, |
3c731eba AS |
546 | .errstr = "misaligned access", |
547 | .result = REJECT, | |
548 | }, | |
549 | { | |
550 | "sometimes access memory with incorrect alignment", | |
551 | .insns = { | |
552 | BPF_ST_MEM(BPF_DW, BPF_REG_10, -8, 0), | |
553 | BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), | |
554 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8), | |
555 | BPF_LD_MAP_FD(BPF_REG_1, 0), | |
5aa5bd14 DB |
556 | BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, |
557 | BPF_FUNC_map_lookup_elem), | |
3c731eba AS |
558 | BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 2), |
559 | BPF_ST_MEM(BPF_DW, BPF_REG_0, 0, 0), | |
560 | BPF_EXIT_INSN(), | |
561 | BPF_ST_MEM(BPF_DW, BPF_REG_0, 0, 1), | |
562 | BPF_EXIT_INSN(), | |
563 | }, | |
5aa5bd14 | 564 | .fixup_map1 = { 3 }, |
3c731eba | 565 | .errstr = "R0 invalid mem access", |
bf508877 | 566 | .errstr_unpriv = "R0 leaks addr", |
3c731eba AS |
567 | .result = REJECT, |
568 | }, | |
fd10c2ef AS |
569 | { |
570 | "jump test 1", | |
571 | .insns = { | |
572 | BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), | |
573 | BPF_STX_MEM(BPF_DW, BPF_REG_2, BPF_REG_1, -8), | |
574 | BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, 0, 1), | |
575 | BPF_ST_MEM(BPF_DW, BPF_REG_2, -8, 0), | |
576 | BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, 1, 1), | |
577 | BPF_ST_MEM(BPF_DW, BPF_REG_2, -16, 1), | |
578 | BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, 2, 1), | |
579 | BPF_ST_MEM(BPF_DW, BPF_REG_2, -8, 2), | |
580 | BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, 3, 1), | |
581 | BPF_ST_MEM(BPF_DW, BPF_REG_2, -16, 3), | |
582 | BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, 4, 1), | |
583 | BPF_ST_MEM(BPF_DW, BPF_REG_2, -8, 4), | |
584 | BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, 5, 1), | |
585 | BPF_ST_MEM(BPF_DW, BPF_REG_2, -32, 5), | |
586 | BPF_MOV64_IMM(BPF_REG_0, 0), | |
587 | BPF_EXIT_INSN(), | |
588 | }, | |
bf508877 AS |
589 | .errstr_unpriv = "R1 pointer comparison", |
590 | .result_unpriv = REJECT, | |
fd10c2ef AS |
591 | .result = ACCEPT, |
592 | }, | |
593 | { | |
594 | "jump test 2", | |
595 | .insns = { | |
596 | BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), | |
597 | BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, 0, 2), | |
598 | BPF_ST_MEM(BPF_DW, BPF_REG_2, -8, 0), | |
599 | BPF_JMP_IMM(BPF_JA, 0, 0, 14), | |
600 | BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, 1, 2), | |
601 | BPF_ST_MEM(BPF_DW, BPF_REG_2, -16, 0), | |
602 | BPF_JMP_IMM(BPF_JA, 0, 0, 11), | |
603 | BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, 2, 2), | |
604 | BPF_ST_MEM(BPF_DW, BPF_REG_2, -32, 0), | |
605 | BPF_JMP_IMM(BPF_JA, 0, 0, 8), | |
606 | BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, 3, 2), | |
607 | BPF_ST_MEM(BPF_DW, BPF_REG_2, -40, 0), | |
608 | BPF_JMP_IMM(BPF_JA, 0, 0, 5), | |
609 | BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, 4, 2), | |
610 | BPF_ST_MEM(BPF_DW, BPF_REG_2, -48, 0), | |
611 | BPF_JMP_IMM(BPF_JA, 0, 0, 2), | |
612 | BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, 5, 1), | |
613 | BPF_ST_MEM(BPF_DW, BPF_REG_2, -56, 0), | |
614 | BPF_MOV64_IMM(BPF_REG_0, 0), | |
615 | BPF_EXIT_INSN(), | |
616 | }, | |
bf508877 AS |
617 | .errstr_unpriv = "R1 pointer comparison", |
618 | .result_unpriv = REJECT, | |
fd10c2ef AS |
619 | .result = ACCEPT, |
620 | }, | |
621 | { | |
622 | "jump test 3", | |
623 | .insns = { | |
624 | BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), | |
625 | BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, 0, 3), | |
626 | BPF_ST_MEM(BPF_DW, BPF_REG_2, -8, 0), | |
627 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8), | |
628 | BPF_JMP_IMM(BPF_JA, 0, 0, 19), | |
629 | BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, 1, 3), | |
630 | BPF_ST_MEM(BPF_DW, BPF_REG_2, -16, 0), | |
631 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -16), | |
632 | BPF_JMP_IMM(BPF_JA, 0, 0, 15), | |
633 | BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, 2, 3), | |
634 | BPF_ST_MEM(BPF_DW, BPF_REG_2, -32, 0), | |
635 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -32), | |
636 | BPF_JMP_IMM(BPF_JA, 0, 0, 11), | |
637 | BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, 3, 3), | |
638 | BPF_ST_MEM(BPF_DW, BPF_REG_2, -40, 0), | |
639 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -40), | |
640 | BPF_JMP_IMM(BPF_JA, 0, 0, 7), | |
641 | BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, 4, 3), | |
642 | BPF_ST_MEM(BPF_DW, BPF_REG_2, -48, 0), | |
643 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -48), | |
644 | BPF_JMP_IMM(BPF_JA, 0, 0, 3), | |
645 | BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, 5, 0), | |
646 | BPF_ST_MEM(BPF_DW, BPF_REG_2, -56, 0), | |
647 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -56), | |
648 | BPF_LD_MAP_FD(BPF_REG_1, 0), | |
5aa5bd14 DB |
649 | BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, |
650 | BPF_FUNC_map_delete_elem), | |
fd10c2ef AS |
651 | BPF_EXIT_INSN(), |
652 | }, | |
5aa5bd14 | 653 | .fixup_map1 = { 24 }, |
bf508877 AS |
654 | .errstr_unpriv = "R1 pointer comparison", |
655 | .result_unpriv = REJECT, | |
fd10c2ef AS |
656 | .result = ACCEPT, |
657 | }, | |
658 | { | |
659 | "jump test 4", | |
660 | .insns = { | |
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, 1), | |
682 | BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, BPF_REG_10, 2), | |
683 | BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, BPF_REG_10, 3), | |
684 | BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, BPF_REG_10, 4), | |
685 | BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, BPF_REG_10, 1), | |
686 | BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, BPF_REG_10, 2), | |
687 | BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, BPF_REG_10, 3), | |
688 | BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, BPF_REG_10, 4), | |
689 | BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, BPF_REG_10, 1), | |
690 | BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, BPF_REG_10, 2), | |
691 | BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, BPF_REG_10, 3), | |
692 | BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, BPF_REG_10, 4), | |
693 | BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, BPF_REG_10, 1), | |
694 | BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, BPF_REG_10, 2), | |
695 | BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, BPF_REG_10, 3), | |
696 | BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, BPF_REG_10, 4), | |
697 | BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, BPF_REG_10, 0), | |
698 | BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, BPF_REG_10, 0), | |
699 | BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, BPF_REG_10, 0), | |
700 | BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, BPF_REG_10, 0), | |
701 | BPF_MOV64_IMM(BPF_REG_0, 0), | |
702 | BPF_EXIT_INSN(), | |
703 | }, | |
bf508877 AS |
704 | .errstr_unpriv = "R1 pointer comparison", |
705 | .result_unpriv = REJECT, | |
fd10c2ef AS |
706 | .result = ACCEPT, |
707 | }, | |
342ded40 AS |
708 | { |
709 | "jump test 5", | |
710 | .insns = { | |
711 | BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), | |
712 | BPF_MOV64_REG(BPF_REG_3, BPF_REG_2), | |
713 | BPF_JMP_IMM(BPF_JGE, BPF_REG_1, 0, 2), | |
714 | BPF_STX_MEM(BPF_DW, BPF_REG_2, BPF_REG_3, -8), | |
715 | BPF_JMP_IMM(BPF_JA, 0, 0, 2), | |
716 | BPF_STX_MEM(BPF_DW, BPF_REG_2, BPF_REG_2, -8), | |
717 | BPF_JMP_IMM(BPF_JA, 0, 0, 0), | |
718 | BPF_MOV64_IMM(BPF_REG_0, 0), | |
719 | BPF_JMP_IMM(BPF_JGE, BPF_REG_1, 0, 2), | |
720 | BPF_STX_MEM(BPF_DW, BPF_REG_2, BPF_REG_3, -8), | |
721 | BPF_JMP_IMM(BPF_JA, 0, 0, 2), | |
722 | BPF_STX_MEM(BPF_DW, BPF_REG_2, BPF_REG_2, -8), | |
723 | BPF_JMP_IMM(BPF_JA, 0, 0, 0), | |
724 | BPF_MOV64_IMM(BPF_REG_0, 0), | |
725 | BPF_JMP_IMM(BPF_JGE, BPF_REG_1, 0, 2), | |
726 | BPF_STX_MEM(BPF_DW, BPF_REG_2, BPF_REG_3, -8), | |
727 | BPF_JMP_IMM(BPF_JA, 0, 0, 2), | |
728 | BPF_STX_MEM(BPF_DW, BPF_REG_2, BPF_REG_2, -8), | |
729 | BPF_JMP_IMM(BPF_JA, 0, 0, 0), | |
730 | BPF_MOV64_IMM(BPF_REG_0, 0), | |
731 | BPF_JMP_IMM(BPF_JGE, BPF_REG_1, 0, 2), | |
732 | BPF_STX_MEM(BPF_DW, BPF_REG_2, BPF_REG_3, -8), | |
733 | BPF_JMP_IMM(BPF_JA, 0, 0, 2), | |
734 | BPF_STX_MEM(BPF_DW, BPF_REG_2, BPF_REG_2, -8), | |
735 | BPF_JMP_IMM(BPF_JA, 0, 0, 0), | |
736 | BPF_MOV64_IMM(BPF_REG_0, 0), | |
737 | BPF_JMP_IMM(BPF_JGE, BPF_REG_1, 0, 2), | |
738 | BPF_STX_MEM(BPF_DW, BPF_REG_2, BPF_REG_3, -8), | |
739 | BPF_JMP_IMM(BPF_JA, 0, 0, 2), | |
740 | BPF_STX_MEM(BPF_DW, BPF_REG_2, BPF_REG_2, -8), | |
741 | BPF_JMP_IMM(BPF_JA, 0, 0, 0), | |
742 | BPF_MOV64_IMM(BPF_REG_0, 0), | |
743 | BPF_EXIT_INSN(), | |
744 | }, | |
bf508877 AS |
745 | .errstr_unpriv = "R1 pointer comparison", |
746 | .result_unpriv = REJECT, | |
342ded40 AS |
747 | .result = ACCEPT, |
748 | }, | |
614cd3bd AS |
749 | { |
750 | "access skb fields ok", | |
751 | .insns = { | |
752 | BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1, | |
753 | offsetof(struct __sk_buff, len)), | |
754 | BPF_JMP_IMM(BPF_JGE, BPF_REG_0, 0, 1), | |
755 | BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1, | |
756 | offsetof(struct __sk_buff, mark)), | |
757 | BPF_JMP_IMM(BPF_JGE, BPF_REG_0, 0, 1), | |
758 | BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1, | |
759 | offsetof(struct __sk_buff, pkt_type)), | |
760 | BPF_JMP_IMM(BPF_JGE, BPF_REG_0, 0, 1), | |
761 | BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1, | |
762 | offsetof(struct __sk_buff, queue_mapping)), | |
763 | BPF_JMP_IMM(BPF_JGE, BPF_REG_0, 0, 0), | |
c2497395 AS |
764 | BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1, |
765 | offsetof(struct __sk_buff, protocol)), | |
766 | BPF_JMP_IMM(BPF_JGE, BPF_REG_0, 0, 0), | |
767 | BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1, | |
768 | offsetof(struct __sk_buff, vlan_present)), | |
769 | BPF_JMP_IMM(BPF_JGE, BPF_REG_0, 0, 0), | |
770 | BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1, | |
771 | offsetof(struct __sk_buff, vlan_tci)), | |
772 | BPF_JMP_IMM(BPF_JGE, BPF_REG_0, 0, 0), | |
614cd3bd AS |
773 | BPF_EXIT_INSN(), |
774 | }, | |
775 | .result = ACCEPT, | |
776 | }, | |
777 | { | |
778 | "access skb fields bad1", | |
779 | .insns = { | |
780 | BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1, -4), | |
781 | BPF_EXIT_INSN(), | |
782 | }, | |
783 | .errstr = "invalid bpf_context access", | |
784 | .result = REJECT, | |
785 | }, | |
786 | { | |
787 | "access skb fields bad2", | |
788 | .insns = { | |
789 | BPF_JMP_IMM(BPF_JGE, BPF_REG_1, 0, 9), | |
790 | BPF_ST_MEM(BPF_DW, BPF_REG_10, -8, 0), | |
791 | BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), | |
792 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8), | |
793 | BPF_LD_MAP_FD(BPF_REG_1, 0), | |
5aa5bd14 DB |
794 | BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, |
795 | BPF_FUNC_map_lookup_elem), | |
614cd3bd AS |
796 | BPF_JMP_IMM(BPF_JNE, BPF_REG_0, 0, 1), |
797 | BPF_EXIT_INSN(), | |
798 | BPF_MOV64_REG(BPF_REG_1, BPF_REG_0), | |
799 | BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1, | |
800 | offsetof(struct __sk_buff, pkt_type)), | |
801 | BPF_EXIT_INSN(), | |
802 | }, | |
5aa5bd14 | 803 | .fixup_map1 = { 4 }, |
614cd3bd | 804 | .errstr = "different pointers", |
bf508877 | 805 | .errstr_unpriv = "R1 pointer comparison", |
614cd3bd AS |
806 | .result = REJECT, |
807 | }, | |
808 | { | |
809 | "access skb fields bad3", | |
810 | .insns = { | |
811 | BPF_JMP_IMM(BPF_JGE, BPF_REG_1, 0, 2), | |
812 | BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1, | |
813 | offsetof(struct __sk_buff, pkt_type)), | |
814 | BPF_EXIT_INSN(), | |
815 | BPF_ST_MEM(BPF_DW, BPF_REG_10, -8, 0), | |
816 | BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), | |
817 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8), | |
818 | BPF_LD_MAP_FD(BPF_REG_1, 0), | |
5aa5bd14 DB |
819 | BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, |
820 | BPF_FUNC_map_lookup_elem), | |
614cd3bd AS |
821 | BPF_JMP_IMM(BPF_JNE, BPF_REG_0, 0, 1), |
822 | BPF_EXIT_INSN(), | |
823 | BPF_MOV64_REG(BPF_REG_1, BPF_REG_0), | |
824 | BPF_JMP_IMM(BPF_JA, 0, 0, -12), | |
825 | }, | |
5aa5bd14 | 826 | .fixup_map1 = { 6 }, |
614cd3bd | 827 | .errstr = "different pointers", |
bf508877 | 828 | .errstr_unpriv = "R1 pointer comparison", |
614cd3bd AS |
829 | .result = REJECT, |
830 | }, | |
725f9dcd AS |
831 | { |
832 | "access skb fields bad4", | |
833 | .insns = { | |
834 | BPF_JMP_IMM(BPF_JGE, BPF_REG_1, 0, 3), | |
835 | BPF_LDX_MEM(BPF_W, BPF_REG_1, BPF_REG_1, | |
836 | offsetof(struct __sk_buff, len)), | |
837 | BPF_MOV64_IMM(BPF_REG_0, 0), | |
838 | BPF_EXIT_INSN(), | |
839 | BPF_ST_MEM(BPF_DW, BPF_REG_10, -8, 0), | |
840 | BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), | |
841 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8), | |
842 | BPF_LD_MAP_FD(BPF_REG_1, 0), | |
5aa5bd14 DB |
843 | BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, |
844 | BPF_FUNC_map_lookup_elem), | |
725f9dcd AS |
845 | BPF_JMP_IMM(BPF_JNE, BPF_REG_0, 0, 1), |
846 | BPF_EXIT_INSN(), | |
847 | BPF_MOV64_REG(BPF_REG_1, BPF_REG_0), | |
848 | BPF_JMP_IMM(BPF_JA, 0, 0, -13), | |
849 | }, | |
5aa5bd14 | 850 | .fixup_map1 = { 7 }, |
725f9dcd | 851 | .errstr = "different pointers", |
bf508877 | 852 | .errstr_unpriv = "R1 pointer comparison", |
725f9dcd AS |
853 | .result = REJECT, |
854 | }, | |
d691f9e8 AS |
855 | { |
856 | "check skb->mark is not writeable by sockets", | |
857 | .insns = { | |
858 | BPF_STX_MEM(BPF_W, BPF_REG_1, BPF_REG_1, | |
859 | offsetof(struct __sk_buff, mark)), | |
860 | BPF_EXIT_INSN(), | |
861 | }, | |
862 | .errstr = "invalid bpf_context access", | |
bf508877 | 863 | .errstr_unpriv = "R1 leaks addr", |
d691f9e8 AS |
864 | .result = REJECT, |
865 | }, | |
866 | { | |
867 | "check skb->tc_index is not writeable by sockets", | |
868 | .insns = { | |
869 | BPF_STX_MEM(BPF_W, BPF_REG_1, BPF_REG_1, | |
870 | offsetof(struct __sk_buff, tc_index)), | |
871 | BPF_EXIT_INSN(), | |
872 | }, | |
873 | .errstr = "invalid bpf_context access", | |
bf508877 | 874 | .errstr_unpriv = "R1 leaks addr", |
d691f9e8 AS |
875 | .result = REJECT, |
876 | }, | |
877 | { | |
62c7989b | 878 | "check cb access: byte", |
d691f9e8 | 879 | .insns = { |
62c7989b DB |
880 | BPF_MOV64_IMM(BPF_REG_0, 0), |
881 | BPF_STX_MEM(BPF_B, BPF_REG_1, BPF_REG_0, | |
882 | offsetof(struct __sk_buff, cb[0])), | |
883 | BPF_STX_MEM(BPF_B, BPF_REG_1, BPF_REG_0, | |
884 | offsetof(struct __sk_buff, cb[0]) + 1), | |
885 | BPF_STX_MEM(BPF_B, BPF_REG_1, BPF_REG_0, | |
886 | offsetof(struct __sk_buff, cb[0]) + 2), | |
887 | BPF_STX_MEM(BPF_B, BPF_REG_1, BPF_REG_0, | |
888 | offsetof(struct __sk_buff, cb[0]) + 3), | |
889 | BPF_STX_MEM(BPF_B, BPF_REG_1, BPF_REG_0, | |
890 | offsetof(struct __sk_buff, cb[1])), | |
891 | BPF_STX_MEM(BPF_B, BPF_REG_1, BPF_REG_0, | |
892 | offsetof(struct __sk_buff, cb[1]) + 1), | |
893 | BPF_STX_MEM(BPF_B, BPF_REG_1, BPF_REG_0, | |
894 | offsetof(struct __sk_buff, cb[1]) + 2), | |
895 | BPF_STX_MEM(BPF_B, BPF_REG_1, BPF_REG_0, | |
896 | offsetof(struct __sk_buff, cb[1]) + 3), | |
897 | BPF_STX_MEM(BPF_B, BPF_REG_1, BPF_REG_0, | |
898 | offsetof(struct __sk_buff, cb[2])), | |
899 | BPF_STX_MEM(BPF_B, BPF_REG_1, BPF_REG_0, | |
900 | offsetof(struct __sk_buff, cb[2]) + 1), | |
901 | BPF_STX_MEM(BPF_B, BPF_REG_1, BPF_REG_0, | |
902 | offsetof(struct __sk_buff, cb[2]) + 2), | |
903 | BPF_STX_MEM(BPF_B, BPF_REG_1, BPF_REG_0, | |
904 | offsetof(struct __sk_buff, cb[2]) + 3), | |
905 | BPF_STX_MEM(BPF_B, BPF_REG_1, BPF_REG_0, | |
906 | offsetof(struct __sk_buff, cb[3])), | |
907 | BPF_STX_MEM(BPF_B, BPF_REG_1, BPF_REG_0, | |
908 | offsetof(struct __sk_buff, cb[3]) + 1), | |
909 | BPF_STX_MEM(BPF_B, BPF_REG_1, BPF_REG_0, | |
910 | offsetof(struct __sk_buff, cb[3]) + 2), | |
911 | BPF_STX_MEM(BPF_B, BPF_REG_1, BPF_REG_0, | |
912 | offsetof(struct __sk_buff, cb[3]) + 3), | |
913 | BPF_STX_MEM(BPF_B, BPF_REG_1, BPF_REG_0, | |
914 | offsetof(struct __sk_buff, cb[4])), | |
915 | BPF_STX_MEM(BPF_B, BPF_REG_1, BPF_REG_0, | |
916 | offsetof(struct __sk_buff, cb[4]) + 1), | |
917 | BPF_STX_MEM(BPF_B, BPF_REG_1, BPF_REG_0, | |
918 | offsetof(struct __sk_buff, cb[4]) + 2), | |
919 | BPF_STX_MEM(BPF_B, BPF_REG_1, BPF_REG_0, | |
920 | offsetof(struct __sk_buff, cb[4]) + 3), | |
921 | BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_1, | |
922 | offsetof(struct __sk_buff, cb[0])), | |
923 | BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_1, | |
924 | offsetof(struct __sk_buff, cb[0]) + 1), | |
925 | BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_1, | |
926 | offsetof(struct __sk_buff, cb[0]) + 2), | |
927 | BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_1, | |
928 | offsetof(struct __sk_buff, cb[0]) + 3), | |
929 | BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_1, | |
930 | offsetof(struct __sk_buff, cb[1])), | |
931 | BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_1, | |
932 | offsetof(struct __sk_buff, cb[1]) + 1), | |
933 | BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_1, | |
934 | offsetof(struct __sk_buff, cb[1]) + 2), | |
935 | BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_1, | |
936 | offsetof(struct __sk_buff, cb[1]) + 3), | |
937 | BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_1, | |
938 | offsetof(struct __sk_buff, cb[2])), | |
939 | BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_1, | |
940 | offsetof(struct __sk_buff, cb[2]) + 1), | |
941 | BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_1, | |
942 | offsetof(struct __sk_buff, cb[2]) + 2), | |
943 | BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_1, | |
944 | offsetof(struct __sk_buff, cb[2]) + 3), | |
945 | BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_1, | |
946 | offsetof(struct __sk_buff, cb[3])), | |
947 | BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_1, | |
948 | offsetof(struct __sk_buff, cb[3]) + 1), | |
949 | BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_1, | |
950 | offsetof(struct __sk_buff, cb[3]) + 2), | |
951 | BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_1, | |
952 | offsetof(struct __sk_buff, cb[3]) + 3), | |
953 | BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_1, | |
954 | offsetof(struct __sk_buff, cb[4])), | |
955 | BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_1, | |
956 | offsetof(struct __sk_buff, cb[4]) + 1), | |
957 | BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_1, | |
958 | offsetof(struct __sk_buff, cb[4]) + 2), | |
959 | BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_1, | |
960 | offsetof(struct __sk_buff, cb[4]) + 3), | |
961 | BPF_EXIT_INSN(), | |
962 | }, | |
963 | .result = ACCEPT, | |
964 | }, | |
965 | { | |
966 | "check cb access: byte, oob 1", | |
967 | .insns = { | |
968 | BPF_MOV64_IMM(BPF_REG_0, 0), | |
969 | BPF_STX_MEM(BPF_B, BPF_REG_1, BPF_REG_0, | |
970 | offsetof(struct __sk_buff, cb[4]) + 4), | |
971 | BPF_EXIT_INSN(), | |
972 | }, | |
973 | .errstr = "invalid bpf_context access", | |
974 | .result = REJECT, | |
975 | }, | |
976 | { | |
977 | "check cb access: byte, oob 2", | |
978 | .insns = { | |
979 | BPF_MOV64_IMM(BPF_REG_0, 0), | |
980 | BPF_STX_MEM(BPF_B, BPF_REG_1, BPF_REG_0, | |
981 | offsetof(struct __sk_buff, cb[0]) - 1), | |
982 | BPF_EXIT_INSN(), | |
983 | }, | |
984 | .errstr = "invalid bpf_context access", | |
985 | .result = REJECT, | |
986 | }, | |
987 | { | |
988 | "check cb access: byte, oob 3", | |
989 | .insns = { | |
990 | BPF_MOV64_IMM(BPF_REG_0, 0), | |
991 | BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_1, | |
992 | offsetof(struct __sk_buff, cb[4]) + 4), | |
993 | BPF_EXIT_INSN(), | |
994 | }, | |
995 | .errstr = "invalid bpf_context access", | |
996 | .result = REJECT, | |
997 | }, | |
998 | { | |
999 | "check cb access: byte, oob 4", | |
1000 | .insns = { | |
1001 | BPF_MOV64_IMM(BPF_REG_0, 0), | |
1002 | BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_1, | |
1003 | offsetof(struct __sk_buff, cb[0]) - 1), | |
1004 | BPF_EXIT_INSN(), | |
1005 | }, | |
1006 | .errstr = "invalid bpf_context access", | |
1007 | .result = REJECT, | |
1008 | }, | |
1009 | { | |
1010 | "check cb access: byte, wrong type", | |
1011 | .insns = { | |
1012 | BPF_MOV64_IMM(BPF_REG_0, 0), | |
1013 | BPF_STX_MEM(BPF_B, BPF_REG_1, BPF_REG_0, | |
1014 | offsetof(struct __sk_buff, cb[0])), | |
1015 | BPF_EXIT_INSN(), | |
1016 | }, | |
1017 | .errstr = "invalid bpf_context access", | |
1018 | .result = REJECT, | |
1019 | .prog_type = BPF_PROG_TYPE_CGROUP_SOCK, | |
1020 | }, | |
1021 | { | |
1022 | "check cb access: half", | |
1023 | .insns = { | |
1024 | BPF_MOV64_IMM(BPF_REG_0, 0), | |
1025 | BPF_STX_MEM(BPF_H, BPF_REG_1, BPF_REG_0, | |
1026 | offsetof(struct __sk_buff, cb[0])), | |
1027 | BPF_STX_MEM(BPF_H, BPF_REG_1, BPF_REG_0, | |
1028 | offsetof(struct __sk_buff, cb[0]) + 2), | |
1029 | BPF_STX_MEM(BPF_H, BPF_REG_1, BPF_REG_0, | |
1030 | offsetof(struct __sk_buff, cb[1])), | |
1031 | BPF_STX_MEM(BPF_H, BPF_REG_1, BPF_REG_0, | |
1032 | offsetof(struct __sk_buff, cb[1]) + 2), | |
1033 | BPF_STX_MEM(BPF_H, BPF_REG_1, BPF_REG_0, | |
1034 | offsetof(struct __sk_buff, cb[2])), | |
1035 | BPF_STX_MEM(BPF_H, BPF_REG_1, BPF_REG_0, | |
1036 | offsetof(struct __sk_buff, cb[2]) + 2), | |
1037 | BPF_STX_MEM(BPF_H, BPF_REG_1, BPF_REG_0, | |
1038 | offsetof(struct __sk_buff, cb[3])), | |
1039 | BPF_STX_MEM(BPF_H, BPF_REG_1, BPF_REG_0, | |
1040 | offsetof(struct __sk_buff, cb[3]) + 2), | |
1041 | BPF_STX_MEM(BPF_H, BPF_REG_1, BPF_REG_0, | |
1042 | offsetof(struct __sk_buff, cb[4])), | |
1043 | BPF_STX_MEM(BPF_H, BPF_REG_1, BPF_REG_0, | |
1044 | offsetof(struct __sk_buff, cb[4]) + 2), | |
1045 | BPF_LDX_MEM(BPF_H, BPF_REG_0, BPF_REG_1, | |
1046 | offsetof(struct __sk_buff, cb[0])), | |
1047 | BPF_LDX_MEM(BPF_H, BPF_REG_0, BPF_REG_1, | |
1048 | offsetof(struct __sk_buff, cb[0]) + 2), | |
1049 | BPF_LDX_MEM(BPF_H, BPF_REG_0, BPF_REG_1, | |
1050 | offsetof(struct __sk_buff, cb[1])), | |
1051 | BPF_LDX_MEM(BPF_H, BPF_REG_0, BPF_REG_1, | |
1052 | offsetof(struct __sk_buff, cb[1]) + 2), | |
1053 | BPF_LDX_MEM(BPF_H, BPF_REG_0, BPF_REG_1, | |
1054 | offsetof(struct __sk_buff, cb[2])), | |
1055 | BPF_LDX_MEM(BPF_H, BPF_REG_0, BPF_REG_1, | |
1056 | offsetof(struct __sk_buff, cb[2]) + 2), | |
1057 | BPF_LDX_MEM(BPF_H, BPF_REG_0, BPF_REG_1, | |
1058 | offsetof(struct __sk_buff, cb[3])), | |
1059 | BPF_LDX_MEM(BPF_H, BPF_REG_0, BPF_REG_1, | |
1060 | offsetof(struct __sk_buff, cb[3]) + 2), | |
1061 | BPF_LDX_MEM(BPF_H, BPF_REG_0, BPF_REG_1, | |
1062 | offsetof(struct __sk_buff, cb[4])), | |
1063 | BPF_LDX_MEM(BPF_H, BPF_REG_0, BPF_REG_1, | |
1064 | offsetof(struct __sk_buff, cb[4]) + 2), | |
1065 | BPF_EXIT_INSN(), | |
1066 | }, | |
1067 | .result = ACCEPT, | |
1068 | }, | |
1069 | { | |
1070 | "check cb access: half, unaligned", | |
1071 | .insns = { | |
1072 | BPF_MOV64_IMM(BPF_REG_0, 0), | |
1073 | BPF_STX_MEM(BPF_H, BPF_REG_1, BPF_REG_0, | |
1074 | offsetof(struct __sk_buff, cb[0]) + 1), | |
1075 | BPF_EXIT_INSN(), | |
1076 | }, | |
1077 | .errstr = "misaligned access", | |
1078 | .result = REJECT, | |
1079 | }, | |
1080 | { | |
1081 | "check cb access: half, oob 1", | |
1082 | .insns = { | |
1083 | BPF_MOV64_IMM(BPF_REG_0, 0), | |
1084 | BPF_STX_MEM(BPF_H, BPF_REG_1, BPF_REG_0, | |
1085 | offsetof(struct __sk_buff, cb[4]) + 4), | |
1086 | BPF_EXIT_INSN(), | |
1087 | }, | |
1088 | .errstr = "invalid bpf_context access", | |
1089 | .result = REJECT, | |
1090 | }, | |
1091 | { | |
1092 | "check cb access: half, oob 2", | |
1093 | .insns = { | |
1094 | BPF_MOV64_IMM(BPF_REG_0, 0), | |
1095 | BPF_STX_MEM(BPF_H, BPF_REG_1, BPF_REG_0, | |
1096 | offsetof(struct __sk_buff, cb[0]) - 2), | |
1097 | BPF_EXIT_INSN(), | |
1098 | }, | |
1099 | .errstr = "invalid bpf_context access", | |
1100 | .result = REJECT, | |
1101 | }, | |
1102 | { | |
1103 | "check cb access: half, oob 3", | |
1104 | .insns = { | |
1105 | BPF_MOV64_IMM(BPF_REG_0, 0), | |
1106 | BPF_LDX_MEM(BPF_H, BPF_REG_0, BPF_REG_1, | |
1107 | offsetof(struct __sk_buff, cb[4]) + 4), | |
1108 | BPF_EXIT_INSN(), | |
1109 | }, | |
1110 | .errstr = "invalid bpf_context access", | |
1111 | .result = REJECT, | |
1112 | }, | |
1113 | { | |
1114 | "check cb access: half, oob 4", | |
1115 | .insns = { | |
1116 | BPF_MOV64_IMM(BPF_REG_0, 0), | |
1117 | BPF_LDX_MEM(BPF_H, BPF_REG_0, BPF_REG_1, | |
1118 | offsetof(struct __sk_buff, cb[0]) - 2), | |
1119 | BPF_EXIT_INSN(), | |
1120 | }, | |
1121 | .errstr = "invalid bpf_context access", | |
1122 | .result = REJECT, | |
1123 | }, | |
1124 | { | |
1125 | "check cb access: half, wrong type", | |
1126 | .insns = { | |
1127 | BPF_MOV64_IMM(BPF_REG_0, 0), | |
1128 | BPF_STX_MEM(BPF_H, BPF_REG_1, BPF_REG_0, | |
1129 | offsetof(struct __sk_buff, cb[0])), | |
1130 | BPF_EXIT_INSN(), | |
1131 | }, | |
1132 | .errstr = "invalid bpf_context access", | |
1133 | .result = REJECT, | |
1134 | .prog_type = BPF_PROG_TYPE_CGROUP_SOCK, | |
1135 | }, | |
1136 | { | |
1137 | "check cb access: word", | |
1138 | .insns = { | |
1139 | BPF_MOV64_IMM(BPF_REG_0, 0), | |
1140 | BPF_STX_MEM(BPF_W, BPF_REG_1, BPF_REG_0, | |
1141 | offsetof(struct __sk_buff, cb[0])), | |
1142 | BPF_STX_MEM(BPF_W, BPF_REG_1, BPF_REG_0, | |
1143 | offsetof(struct __sk_buff, cb[1])), | |
1144 | BPF_STX_MEM(BPF_W, BPF_REG_1, BPF_REG_0, | |
1145 | offsetof(struct __sk_buff, cb[2])), | |
1146 | BPF_STX_MEM(BPF_W, BPF_REG_1, BPF_REG_0, | |
1147 | offsetof(struct __sk_buff, cb[3])), | |
1148 | BPF_STX_MEM(BPF_W, BPF_REG_1, BPF_REG_0, | |
1149 | offsetof(struct __sk_buff, cb[4])), | |
1150 | BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1, | |
1151 | offsetof(struct __sk_buff, cb[0])), | |
1152 | BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1, | |
1153 | offsetof(struct __sk_buff, cb[1])), | |
1154 | BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1, | |
1155 | offsetof(struct __sk_buff, cb[2])), | |
1156 | BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1, | |
1157 | offsetof(struct __sk_buff, cb[3])), | |
1158 | BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1, | |
1159 | offsetof(struct __sk_buff, cb[4])), | |
1160 | BPF_EXIT_INSN(), | |
1161 | }, | |
1162 | .result = ACCEPT, | |
1163 | }, | |
1164 | { | |
1165 | "check cb access: word, unaligned 1", | |
1166 | .insns = { | |
1167 | BPF_MOV64_IMM(BPF_REG_0, 0), | |
1168 | BPF_STX_MEM(BPF_W, BPF_REG_1, BPF_REG_0, | |
1169 | offsetof(struct __sk_buff, cb[0]) + 2), | |
1170 | BPF_EXIT_INSN(), | |
1171 | }, | |
1172 | .errstr = "misaligned access", | |
1173 | .result = REJECT, | |
1174 | }, | |
1175 | { | |
1176 | "check cb access: word, unaligned 2", | |
1177 | .insns = { | |
1178 | BPF_MOV64_IMM(BPF_REG_0, 0), | |
1179 | BPF_STX_MEM(BPF_W, BPF_REG_1, BPF_REG_0, | |
1180 | offsetof(struct __sk_buff, cb[4]) + 1), | |
1181 | BPF_EXIT_INSN(), | |
1182 | }, | |
1183 | .errstr = "misaligned access", | |
1184 | .result = REJECT, | |
1185 | }, | |
1186 | { | |
1187 | "check cb access: word, unaligned 3", | |
1188 | .insns = { | |
1189 | BPF_MOV64_IMM(BPF_REG_0, 0), | |
1190 | BPF_STX_MEM(BPF_W, BPF_REG_1, BPF_REG_0, | |
1191 | offsetof(struct __sk_buff, cb[4]) + 2), | |
1192 | BPF_EXIT_INSN(), | |
1193 | }, | |
1194 | .errstr = "misaligned access", | |
1195 | .result = REJECT, | |
1196 | }, | |
1197 | { | |
1198 | "check cb access: word, unaligned 4", | |
1199 | .insns = { | |
1200 | BPF_MOV64_IMM(BPF_REG_0, 0), | |
1201 | BPF_STX_MEM(BPF_W, BPF_REG_1, BPF_REG_0, | |
1202 | offsetof(struct __sk_buff, cb[4]) + 3), | |
1203 | BPF_EXIT_INSN(), | |
1204 | }, | |
1205 | .errstr = "misaligned access", | |
1206 | .result = REJECT, | |
1207 | }, | |
1208 | { | |
1209 | "check cb access: double", | |
1210 | .insns = { | |
1211 | BPF_MOV64_IMM(BPF_REG_0, 0), | |
1212 | BPF_STX_MEM(BPF_DW, BPF_REG_1, BPF_REG_0, | |
1213 | offsetof(struct __sk_buff, cb[0])), | |
1214 | BPF_STX_MEM(BPF_DW, BPF_REG_1, BPF_REG_0, | |
1215 | offsetof(struct __sk_buff, cb[2])), | |
1216 | BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_1, | |
1217 | offsetof(struct __sk_buff, cb[0])), | |
1218 | BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_1, | |
1219 | offsetof(struct __sk_buff, cb[2])), | |
1220 | BPF_EXIT_INSN(), | |
1221 | }, | |
1222 | .result = ACCEPT, | |
1223 | }, | |
1224 | { | |
1225 | "check cb access: double, unaligned 1", | |
1226 | .insns = { | |
1227 | BPF_MOV64_IMM(BPF_REG_0, 0), | |
1228 | BPF_STX_MEM(BPF_DW, BPF_REG_1, BPF_REG_0, | |
1229 | offsetof(struct __sk_buff, cb[1])), | |
1230 | BPF_EXIT_INSN(), | |
1231 | }, | |
1232 | .errstr = "misaligned access", | |
1233 | .result = REJECT, | |
1234 | }, | |
1235 | { | |
1236 | "check cb access: double, unaligned 2", | |
1237 | .insns = { | |
1238 | BPF_MOV64_IMM(BPF_REG_0, 0), | |
1239 | BPF_STX_MEM(BPF_DW, BPF_REG_1, BPF_REG_0, | |
1240 | offsetof(struct __sk_buff, cb[3])), | |
1241 | BPF_EXIT_INSN(), | |
1242 | }, | |
1243 | .errstr = "misaligned access", | |
1244 | .result = REJECT, | |
1245 | }, | |
1246 | { | |
1247 | "check cb access: double, oob 1", | |
1248 | .insns = { | |
1249 | BPF_MOV64_IMM(BPF_REG_0, 0), | |
1250 | BPF_STX_MEM(BPF_DW, BPF_REG_1, BPF_REG_0, | |
1251 | offsetof(struct __sk_buff, cb[4])), | |
1252 | BPF_EXIT_INSN(), | |
1253 | }, | |
1254 | .errstr = "invalid bpf_context access", | |
1255 | .result = REJECT, | |
1256 | }, | |
1257 | { | |
1258 | "check cb access: double, oob 2", | |
1259 | .insns = { | |
1260 | BPF_MOV64_IMM(BPF_REG_0, 0), | |
1261 | BPF_STX_MEM(BPF_DW, BPF_REG_1, BPF_REG_0, | |
1262 | offsetof(struct __sk_buff, cb[4]) + 8), | |
1263 | BPF_EXIT_INSN(), | |
1264 | }, | |
1265 | .errstr = "invalid bpf_context access", | |
1266 | .result = REJECT, | |
1267 | }, | |
1268 | { | |
1269 | "check cb access: double, oob 3", | |
1270 | .insns = { | |
1271 | BPF_MOV64_IMM(BPF_REG_0, 0), | |
1272 | BPF_STX_MEM(BPF_DW, BPF_REG_1, BPF_REG_0, | |
1273 | offsetof(struct __sk_buff, cb[0]) - 8), | |
1274 | BPF_EXIT_INSN(), | |
1275 | }, | |
1276 | .errstr = "invalid bpf_context access", | |
1277 | .result = REJECT, | |
1278 | }, | |
1279 | { | |
1280 | "check cb access: double, oob 4", | |
1281 | .insns = { | |
1282 | BPF_MOV64_IMM(BPF_REG_0, 0), | |
1283 | BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_1, | |
1284 | offsetof(struct __sk_buff, cb[4])), | |
1285 | BPF_EXIT_INSN(), | |
1286 | }, | |
1287 | .errstr = "invalid bpf_context access", | |
1288 | .result = REJECT, | |
1289 | }, | |
1290 | { | |
1291 | "check cb access: double, oob 5", | |
1292 | .insns = { | |
1293 | BPF_MOV64_IMM(BPF_REG_0, 0), | |
1294 | BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_1, | |
1295 | offsetof(struct __sk_buff, cb[4]) + 8), | |
1296 | BPF_EXIT_INSN(), | |
1297 | }, | |
1298 | .errstr = "invalid bpf_context access", | |
1299 | .result = REJECT, | |
1300 | }, | |
1301 | { | |
1302 | "check cb access: double, oob 6", | |
1303 | .insns = { | |
1304 | BPF_MOV64_IMM(BPF_REG_0, 0), | |
1305 | BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_1, | |
1306 | offsetof(struct __sk_buff, cb[0]) - 8), | |
1307 | BPF_EXIT_INSN(), | |
1308 | }, | |
1309 | .errstr = "invalid bpf_context access", | |
1310 | .result = REJECT, | |
1311 | }, | |
1312 | { | |
1313 | "check cb access: double, wrong type", | |
1314 | .insns = { | |
1315 | BPF_MOV64_IMM(BPF_REG_0, 0), | |
1316 | BPF_STX_MEM(BPF_DW, BPF_REG_1, BPF_REG_0, | |
d691f9e8 AS |
1317 | offsetof(struct __sk_buff, cb[0])), |
1318 | BPF_EXIT_INSN(), | |
1319 | }, | |
1320 | .errstr = "invalid bpf_context access", | |
1321 | .result = REJECT, | |
62c7989b | 1322 | .prog_type = BPF_PROG_TYPE_CGROUP_SOCK, |
d691f9e8 AS |
1323 | }, |
1324 | { | |
1325 | "check out of range skb->cb access", | |
1326 | .insns = { | |
1327 | BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1, | |
bf508877 | 1328 | offsetof(struct __sk_buff, cb[0]) + 256), |
d691f9e8 AS |
1329 | BPF_EXIT_INSN(), |
1330 | }, | |
1331 | .errstr = "invalid bpf_context access", | |
bf508877 | 1332 | .errstr_unpriv = "", |
d691f9e8 AS |
1333 | .result = REJECT, |
1334 | .prog_type = BPF_PROG_TYPE_SCHED_ACT, | |
1335 | }, | |
1336 | { | |
1337 | "write skb fields from socket prog", | |
1338 | .insns = { | |
1339 | BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1, | |
1340 | offsetof(struct __sk_buff, cb[4])), | |
1341 | BPF_JMP_IMM(BPF_JGE, BPF_REG_0, 0, 1), | |
1342 | BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1, | |
1343 | offsetof(struct __sk_buff, mark)), | |
1344 | BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1, | |
1345 | offsetof(struct __sk_buff, tc_index)), | |
1346 | BPF_JMP_IMM(BPF_JGE, BPF_REG_0, 0, 1), | |
1347 | BPF_STX_MEM(BPF_W, BPF_REG_1, BPF_REG_1, | |
1348 | offsetof(struct __sk_buff, cb[0])), | |
1349 | BPF_STX_MEM(BPF_W, BPF_REG_1, BPF_REG_1, | |
1350 | offsetof(struct __sk_buff, cb[2])), | |
1351 | BPF_EXIT_INSN(), | |
1352 | }, | |
1353 | .result = ACCEPT, | |
bf508877 AS |
1354 | .errstr_unpriv = "R1 leaks addr", |
1355 | .result_unpriv = REJECT, | |
d691f9e8 AS |
1356 | }, |
1357 | { | |
1358 | "write skb fields from tc_cls_act prog", | |
1359 | .insns = { | |
1360 | BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1, | |
1361 | offsetof(struct __sk_buff, cb[0])), | |
1362 | BPF_STX_MEM(BPF_W, BPF_REG_1, BPF_REG_0, | |
1363 | offsetof(struct __sk_buff, mark)), | |
1364 | BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1, | |
1365 | offsetof(struct __sk_buff, tc_index)), | |
1366 | BPF_STX_MEM(BPF_W, BPF_REG_1, BPF_REG_0, | |
1367 | offsetof(struct __sk_buff, tc_index)), | |
1368 | BPF_STX_MEM(BPF_W, BPF_REG_1, BPF_REG_0, | |
1369 | offsetof(struct __sk_buff, cb[3])), | |
1370 | BPF_EXIT_INSN(), | |
1371 | }, | |
bf508877 AS |
1372 | .errstr_unpriv = "", |
1373 | .result_unpriv = REJECT, | |
d691f9e8 AS |
1374 | .result = ACCEPT, |
1375 | .prog_type = BPF_PROG_TYPE_SCHED_CLS, | |
1376 | }, | |
24b4d2ab AG |
1377 | { |
1378 | "PTR_TO_STACK store/load", | |
1379 | .insns = { | |
1380 | BPF_MOV64_REG(BPF_REG_1, BPF_REG_10), | |
1381 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, -10), | |
1382 | BPF_ST_MEM(BPF_DW, BPF_REG_1, 2, 0xfaceb00c), | |
1383 | BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_1, 2), | |
1384 | BPF_EXIT_INSN(), | |
1385 | }, | |
1386 | .result = ACCEPT, | |
1387 | }, | |
1388 | { | |
1389 | "PTR_TO_STACK store/load - bad alignment on off", | |
1390 | .insns = { | |
1391 | BPF_MOV64_REG(BPF_REG_1, BPF_REG_10), | |
1392 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, -8), | |
1393 | BPF_ST_MEM(BPF_DW, BPF_REG_1, 2, 0xfaceb00c), | |
1394 | BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_1, 2), | |
1395 | BPF_EXIT_INSN(), | |
1396 | }, | |
1397 | .result = REJECT, | |
1398 | .errstr = "misaligned access off -6 size 8", | |
1399 | }, | |
1400 | { | |
1401 | "PTR_TO_STACK store/load - bad alignment on reg", | |
1402 | .insns = { | |
1403 | BPF_MOV64_REG(BPF_REG_1, BPF_REG_10), | |
1404 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, -10), | |
1405 | BPF_ST_MEM(BPF_DW, BPF_REG_1, 8, 0xfaceb00c), | |
1406 | BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_1, 8), | |
1407 | BPF_EXIT_INSN(), | |
1408 | }, | |
1409 | .result = REJECT, | |
1410 | .errstr = "misaligned access off -2 size 8", | |
1411 | }, | |
1412 | { | |
1413 | "PTR_TO_STACK store/load - out of bounds low", | |
1414 | .insns = { | |
1415 | BPF_MOV64_REG(BPF_REG_1, BPF_REG_10), | |
1416 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, -80000), | |
1417 | BPF_ST_MEM(BPF_DW, BPF_REG_1, 8, 0xfaceb00c), | |
1418 | BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_1, 8), | |
1419 | BPF_EXIT_INSN(), | |
1420 | }, | |
1421 | .result = REJECT, | |
1422 | .errstr = "invalid stack off=-79992 size=8", | |
1423 | }, | |
1424 | { | |
1425 | "PTR_TO_STACK store/load - out of bounds high", | |
1426 | .insns = { | |
1427 | BPF_MOV64_REG(BPF_REG_1, BPF_REG_10), | |
1428 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, -8), | |
1429 | BPF_ST_MEM(BPF_DW, BPF_REG_1, 8, 0xfaceb00c), | |
1430 | BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_1, 8), | |
1431 | BPF_EXIT_INSN(), | |
1432 | }, | |
1433 | .result = REJECT, | |
1434 | .errstr = "invalid stack off=0 size=8", | |
1435 | }, | |
bf508877 AS |
1436 | { |
1437 | "unpriv: return pointer", | |
1438 | .insns = { | |
1439 | BPF_MOV64_REG(BPF_REG_0, BPF_REG_10), | |
1440 | BPF_EXIT_INSN(), | |
1441 | }, | |
1442 | .result = ACCEPT, | |
1443 | .result_unpriv = REJECT, | |
1444 | .errstr_unpriv = "R0 leaks addr", | |
1445 | }, | |
1446 | { | |
1447 | "unpriv: add const to pointer", | |
1448 | .insns = { | |
1449 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, 8), | |
1450 | BPF_MOV64_IMM(BPF_REG_0, 0), | |
1451 | BPF_EXIT_INSN(), | |
1452 | }, | |
1453 | .result = ACCEPT, | |
1454 | .result_unpriv = REJECT, | |
1455 | .errstr_unpriv = "R1 pointer arithmetic", | |
1456 | }, | |
1457 | { | |
1458 | "unpriv: add pointer to pointer", | |
1459 | .insns = { | |
1460 | BPF_ALU64_REG(BPF_ADD, BPF_REG_1, BPF_REG_10), | |
1461 | BPF_MOV64_IMM(BPF_REG_0, 0), | |
1462 | BPF_EXIT_INSN(), | |
1463 | }, | |
1464 | .result = ACCEPT, | |
1465 | .result_unpriv = REJECT, | |
1466 | .errstr_unpriv = "R1 pointer arithmetic", | |
1467 | }, | |
1468 | { | |
1469 | "unpriv: neg pointer", | |
1470 | .insns = { | |
1471 | BPF_ALU64_IMM(BPF_NEG, BPF_REG_1, 0), | |
1472 | BPF_MOV64_IMM(BPF_REG_0, 0), | |
1473 | BPF_EXIT_INSN(), | |
1474 | }, | |
1475 | .result = ACCEPT, | |
1476 | .result_unpriv = REJECT, | |
1477 | .errstr_unpriv = "R1 pointer arithmetic", | |
1478 | }, | |
1479 | { | |
1480 | "unpriv: cmp pointer with const", | |
1481 | .insns = { | |
1482 | BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, 0, 0), | |
1483 | BPF_MOV64_IMM(BPF_REG_0, 0), | |
1484 | BPF_EXIT_INSN(), | |
1485 | }, | |
1486 | .result = ACCEPT, | |
1487 | .result_unpriv = REJECT, | |
1488 | .errstr_unpriv = "R1 pointer comparison", | |
1489 | }, | |
1490 | { | |
1491 | "unpriv: cmp pointer with pointer", | |
1492 | .insns = { | |
1493 | BPF_JMP_REG(BPF_JEQ, BPF_REG_1, BPF_REG_10, 0), | |
1494 | BPF_MOV64_IMM(BPF_REG_0, 0), | |
1495 | BPF_EXIT_INSN(), | |
1496 | }, | |
1497 | .result = ACCEPT, | |
1498 | .result_unpriv = REJECT, | |
1499 | .errstr_unpriv = "R10 pointer comparison", | |
1500 | }, | |
1501 | { | |
1502 | "unpriv: check that printk is disallowed", | |
1503 | .insns = { | |
1504 | BPF_ST_MEM(BPF_DW, BPF_REG_10, -8, 0), | |
1505 | BPF_MOV64_REG(BPF_REG_1, BPF_REG_10), | |
1506 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, -8), | |
1507 | BPF_MOV64_IMM(BPF_REG_2, 8), | |
1508 | BPF_MOV64_REG(BPF_REG_3, BPF_REG_1), | |
5aa5bd14 DB |
1509 | BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, |
1510 | BPF_FUNC_trace_printk), | |
bf508877 AS |
1511 | BPF_MOV64_IMM(BPF_REG_0, 0), |
1512 | BPF_EXIT_INSN(), | |
1513 | }, | |
0eb6984f | 1514 | .errstr_unpriv = "unknown func bpf_trace_printk#6", |
bf508877 AS |
1515 | .result_unpriv = REJECT, |
1516 | .result = ACCEPT, | |
1517 | }, | |
1518 | { | |
1519 | "unpriv: pass pointer to helper function", | |
1520 | .insns = { | |
1521 | BPF_ST_MEM(BPF_DW, BPF_REG_10, -8, 0), | |
1522 | BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), | |
1523 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8), | |
1524 | BPF_LD_MAP_FD(BPF_REG_1, 0), | |
1525 | BPF_MOV64_REG(BPF_REG_3, BPF_REG_2), | |
1526 | BPF_MOV64_REG(BPF_REG_4, BPF_REG_2), | |
5aa5bd14 DB |
1527 | BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, |
1528 | BPF_FUNC_map_update_elem), | |
bf508877 AS |
1529 | BPF_MOV64_IMM(BPF_REG_0, 0), |
1530 | BPF_EXIT_INSN(), | |
1531 | }, | |
5aa5bd14 | 1532 | .fixup_map1 = { 3 }, |
bf508877 AS |
1533 | .errstr_unpriv = "R4 leaks addr", |
1534 | .result_unpriv = REJECT, | |
1535 | .result = ACCEPT, | |
1536 | }, | |
1537 | { | |
1538 | "unpriv: indirectly pass pointer on stack to helper function", | |
1539 | .insns = { | |
1540 | BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_10, -8), | |
1541 | BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), | |
1542 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8), | |
1543 | BPF_LD_MAP_FD(BPF_REG_1, 0), | |
5aa5bd14 DB |
1544 | BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, |
1545 | BPF_FUNC_map_lookup_elem), | |
bf508877 AS |
1546 | BPF_MOV64_IMM(BPF_REG_0, 0), |
1547 | BPF_EXIT_INSN(), | |
1548 | }, | |
5aa5bd14 | 1549 | .fixup_map1 = { 3 }, |
bf508877 AS |
1550 | .errstr = "invalid indirect read from stack off -8+0 size 8", |
1551 | .result = REJECT, | |
1552 | }, | |
1553 | { | |
1554 | "unpriv: mangle pointer on stack 1", | |
1555 | .insns = { | |
1556 | BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_10, -8), | |
1557 | BPF_ST_MEM(BPF_W, BPF_REG_10, -8, 0), | |
1558 | BPF_MOV64_IMM(BPF_REG_0, 0), | |
1559 | BPF_EXIT_INSN(), | |
1560 | }, | |
1561 | .errstr_unpriv = "attempt to corrupt spilled", | |
1562 | .result_unpriv = REJECT, | |
1563 | .result = ACCEPT, | |
1564 | }, | |
1565 | { | |
1566 | "unpriv: mangle pointer on stack 2", | |
1567 | .insns = { | |
1568 | BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_10, -8), | |
1569 | BPF_ST_MEM(BPF_B, BPF_REG_10, -1, 0), | |
1570 | BPF_MOV64_IMM(BPF_REG_0, 0), | |
1571 | BPF_EXIT_INSN(), | |
1572 | }, | |
1573 | .errstr_unpriv = "attempt to corrupt spilled", | |
1574 | .result_unpriv = REJECT, | |
1575 | .result = ACCEPT, | |
1576 | }, | |
1577 | { | |
1578 | "unpriv: read pointer from stack in small chunks", | |
1579 | .insns = { | |
1580 | BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_10, -8), | |
1581 | BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_10, -8), | |
1582 | BPF_MOV64_IMM(BPF_REG_0, 0), | |
1583 | BPF_EXIT_INSN(), | |
1584 | }, | |
1585 | .errstr = "invalid size", | |
1586 | .result = REJECT, | |
1587 | }, | |
1588 | { | |
1589 | "unpriv: write pointer into ctx", | |
1590 | .insns = { | |
1591 | BPF_STX_MEM(BPF_DW, BPF_REG_1, BPF_REG_1, 0), | |
1592 | BPF_MOV64_IMM(BPF_REG_0, 0), | |
1593 | BPF_EXIT_INSN(), | |
1594 | }, | |
1595 | .errstr_unpriv = "R1 leaks addr", | |
1596 | .result_unpriv = REJECT, | |
1597 | .errstr = "invalid bpf_context access", | |
1598 | .result = REJECT, | |
1599 | }, | |
1a776b9c DB |
1600 | { |
1601 | "unpriv: spill/fill of ctx", | |
1602 | .insns = { | |
1603 | BPF_ALU64_REG(BPF_MOV, BPF_REG_6, BPF_REG_10), | |
1604 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_6, -8), | |
1605 | BPF_STX_MEM(BPF_DW, BPF_REG_6, BPF_REG_1, 0), | |
1606 | BPF_LDX_MEM(BPF_DW, BPF_REG_1, BPF_REG_6, 0), | |
1607 | BPF_MOV64_IMM(BPF_REG_0, 0), | |
1608 | BPF_EXIT_INSN(), | |
1609 | }, | |
1610 | .result = ACCEPT, | |
1611 | }, | |
1612 | { | |
1613 | "unpriv: spill/fill of ctx 2", | |
1614 | .insns = { | |
1615 | BPF_ALU64_REG(BPF_MOV, BPF_REG_6, BPF_REG_10), | |
1616 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_6, -8), | |
1617 | BPF_STX_MEM(BPF_DW, BPF_REG_6, BPF_REG_1, 0), | |
1618 | BPF_LDX_MEM(BPF_DW, BPF_REG_1, BPF_REG_6, 0), | |
5aa5bd14 DB |
1619 | BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, |
1620 | BPF_FUNC_get_hash_recalc), | |
1a776b9c DB |
1621 | BPF_EXIT_INSN(), |
1622 | }, | |
1623 | .result = ACCEPT, | |
1624 | .prog_type = BPF_PROG_TYPE_SCHED_CLS, | |
1625 | }, | |
1626 | { | |
1627 | "unpriv: spill/fill of ctx 3", | |
1628 | .insns = { | |
1629 | BPF_ALU64_REG(BPF_MOV, BPF_REG_6, BPF_REG_10), | |
1630 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_6, -8), | |
1631 | BPF_STX_MEM(BPF_DW, BPF_REG_6, BPF_REG_1, 0), | |
1632 | BPF_STX_MEM(BPF_DW, BPF_REG_6, BPF_REG_10, 0), | |
1633 | BPF_LDX_MEM(BPF_DW, BPF_REG_1, BPF_REG_6, 0), | |
5aa5bd14 DB |
1634 | BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, |
1635 | BPF_FUNC_get_hash_recalc), | |
1a776b9c DB |
1636 | BPF_EXIT_INSN(), |
1637 | }, | |
1638 | .result = REJECT, | |
1639 | .errstr = "R1 type=fp expected=ctx", | |
1640 | .prog_type = BPF_PROG_TYPE_SCHED_CLS, | |
1641 | }, | |
1642 | { | |
1643 | "unpriv: spill/fill of ctx 4", | |
1644 | .insns = { | |
1645 | BPF_ALU64_REG(BPF_MOV, BPF_REG_6, BPF_REG_10), | |
1646 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_6, -8), | |
1647 | BPF_STX_MEM(BPF_DW, BPF_REG_6, BPF_REG_1, 0), | |
1648 | BPF_MOV64_IMM(BPF_REG_0, 1), | |
5aa5bd14 DB |
1649 | BPF_RAW_INSN(BPF_STX | BPF_XADD | BPF_DW, BPF_REG_10, |
1650 | BPF_REG_0, -8, 0), | |
1a776b9c | 1651 | BPF_LDX_MEM(BPF_DW, BPF_REG_1, BPF_REG_6, 0), |
5aa5bd14 DB |
1652 | BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, |
1653 | BPF_FUNC_get_hash_recalc), | |
1a776b9c DB |
1654 | BPF_EXIT_INSN(), |
1655 | }, | |
1656 | .result = REJECT, | |
1657 | .errstr = "R1 type=inv expected=ctx", | |
1658 | .prog_type = BPF_PROG_TYPE_SCHED_CLS, | |
1659 | }, | |
1660 | { | |
1661 | "unpriv: spill/fill of different pointers stx", | |
1662 | .insns = { | |
1663 | BPF_MOV64_IMM(BPF_REG_3, 42), | |
1664 | BPF_ALU64_REG(BPF_MOV, BPF_REG_6, BPF_REG_10), | |
1665 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_6, -8), | |
1666 | BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, 0, 3), | |
1667 | BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), | |
1668 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -16), | |
1669 | BPF_STX_MEM(BPF_DW, BPF_REG_6, BPF_REG_2, 0), | |
1670 | BPF_JMP_IMM(BPF_JNE, BPF_REG_1, 0, 1), | |
1671 | BPF_STX_MEM(BPF_DW, BPF_REG_6, BPF_REG_1, 0), | |
1672 | BPF_LDX_MEM(BPF_DW, BPF_REG_1, BPF_REG_6, 0), | |
1673 | BPF_STX_MEM(BPF_W, BPF_REG_1, BPF_REG_3, | |
1674 | offsetof(struct __sk_buff, mark)), | |
1675 | BPF_MOV64_IMM(BPF_REG_0, 0), | |
1676 | BPF_EXIT_INSN(), | |
1677 | }, | |
1678 | .result = REJECT, | |
1679 | .errstr = "same insn cannot be used with different pointers", | |
1680 | .prog_type = BPF_PROG_TYPE_SCHED_CLS, | |
1681 | }, | |
1682 | { | |
1683 | "unpriv: spill/fill of different pointers ldx", | |
1684 | .insns = { | |
1685 | BPF_ALU64_REG(BPF_MOV, BPF_REG_6, BPF_REG_10), | |
1686 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_6, -8), | |
1687 | BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, 0, 3), | |
1688 | BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), | |
1689 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, | |
1690 | -(__s32)offsetof(struct bpf_perf_event_data, | |
1691 | sample_period) - 8), | |
1692 | BPF_STX_MEM(BPF_DW, BPF_REG_6, BPF_REG_2, 0), | |
1693 | BPF_JMP_IMM(BPF_JNE, BPF_REG_1, 0, 1), | |
1694 | BPF_STX_MEM(BPF_DW, BPF_REG_6, BPF_REG_1, 0), | |
1695 | BPF_LDX_MEM(BPF_DW, BPF_REG_1, BPF_REG_6, 0), | |
1696 | BPF_LDX_MEM(BPF_DW, BPF_REG_1, BPF_REG_1, | |
1697 | offsetof(struct bpf_perf_event_data, | |
1698 | sample_period)), | |
1699 | BPF_MOV64_IMM(BPF_REG_0, 0), | |
1700 | BPF_EXIT_INSN(), | |
1701 | }, | |
1702 | .result = REJECT, | |
1703 | .errstr = "same insn cannot be used with different pointers", | |
1704 | .prog_type = BPF_PROG_TYPE_PERF_EVENT, | |
1705 | }, | |
bf508877 AS |
1706 | { |
1707 | "unpriv: write pointer into map elem value", | |
1708 | .insns = { | |
1709 | BPF_ST_MEM(BPF_DW, BPF_REG_10, -8, 0), | |
1710 | BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), | |
1711 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8), | |
1712 | BPF_LD_MAP_FD(BPF_REG_1, 0), | |
5aa5bd14 DB |
1713 | BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, |
1714 | BPF_FUNC_map_lookup_elem), | |
bf508877 AS |
1715 | BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 1), |
1716 | BPF_STX_MEM(BPF_DW, BPF_REG_0, BPF_REG_0, 0), | |
1717 | BPF_EXIT_INSN(), | |
1718 | }, | |
5aa5bd14 | 1719 | .fixup_map1 = { 3 }, |
bf508877 AS |
1720 | .errstr_unpriv = "R0 leaks addr", |
1721 | .result_unpriv = REJECT, | |
1722 | .result = ACCEPT, | |
1723 | }, | |
1724 | { | |
1725 | "unpriv: partial copy of pointer", | |
1726 | .insns = { | |
1727 | BPF_MOV32_REG(BPF_REG_1, BPF_REG_10), | |
1728 | BPF_MOV64_IMM(BPF_REG_0, 0), | |
1729 | BPF_EXIT_INSN(), | |
1730 | }, | |
1731 | .errstr_unpriv = "R10 partial copy", | |
1732 | .result_unpriv = REJECT, | |
1733 | .result = ACCEPT, | |
1734 | }, | |
1735 | { | |
1736 | "unpriv: pass pointer to tail_call", | |
1737 | .insns = { | |
1738 | BPF_MOV64_REG(BPF_REG_3, BPF_REG_1), | |
1739 | BPF_LD_MAP_FD(BPF_REG_2, 0), | |
5aa5bd14 DB |
1740 | BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, |
1741 | BPF_FUNC_tail_call), | |
bf508877 AS |
1742 | BPF_MOV64_IMM(BPF_REG_0, 0), |
1743 | BPF_EXIT_INSN(), | |
1744 | }, | |
5aa5bd14 | 1745 | .fixup_prog = { 1 }, |
bf508877 AS |
1746 | .errstr_unpriv = "R3 leaks addr into helper", |
1747 | .result_unpriv = REJECT, | |
1748 | .result = ACCEPT, | |
1749 | }, | |
1750 | { | |
1751 | "unpriv: cmp map pointer with zero", | |
1752 | .insns = { | |
1753 | BPF_MOV64_IMM(BPF_REG_1, 0), | |
1754 | BPF_LD_MAP_FD(BPF_REG_1, 0), | |
1755 | BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, 0, 0), | |
1756 | BPF_MOV64_IMM(BPF_REG_0, 0), | |
1757 | BPF_EXIT_INSN(), | |
1758 | }, | |
5aa5bd14 | 1759 | .fixup_map1 = { 1 }, |
bf508877 AS |
1760 | .errstr_unpriv = "R1 pointer comparison", |
1761 | .result_unpriv = REJECT, | |
1762 | .result = ACCEPT, | |
1763 | }, | |
1764 | { | |
1765 | "unpriv: write into frame pointer", | |
1766 | .insns = { | |
1767 | BPF_MOV64_REG(BPF_REG_10, BPF_REG_1), | |
1768 | BPF_MOV64_IMM(BPF_REG_0, 0), | |
1769 | BPF_EXIT_INSN(), | |
1770 | }, | |
1771 | .errstr = "frame pointer is read only", | |
1772 | .result = REJECT, | |
1773 | }, | |
1a776b9c DB |
1774 | { |
1775 | "unpriv: spill/fill frame pointer", | |
1776 | .insns = { | |
1777 | BPF_ALU64_REG(BPF_MOV, BPF_REG_6, BPF_REG_10), | |
1778 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_6, -8), | |
1779 | BPF_STX_MEM(BPF_DW, BPF_REG_6, BPF_REG_10, 0), | |
1780 | BPF_LDX_MEM(BPF_DW, BPF_REG_10, BPF_REG_6, 0), | |
1781 | BPF_MOV64_IMM(BPF_REG_0, 0), | |
1782 | BPF_EXIT_INSN(), | |
1783 | }, | |
1784 | .errstr = "frame pointer is read only", | |
1785 | .result = REJECT, | |
1786 | }, | |
bf508877 AS |
1787 | { |
1788 | "unpriv: cmp of frame pointer", | |
1789 | .insns = { | |
1790 | BPF_JMP_IMM(BPF_JEQ, BPF_REG_10, 0, 0), | |
1791 | BPF_MOV64_IMM(BPF_REG_0, 0), | |
1792 | BPF_EXIT_INSN(), | |
1793 | }, | |
1794 | .errstr_unpriv = "R10 pointer comparison", | |
1795 | .result_unpriv = REJECT, | |
1796 | .result = ACCEPT, | |
1797 | }, | |
1798 | { | |
1799 | "unpriv: cmp of stack pointer", | |
1800 | .insns = { | |
1801 | BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), | |
1802 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8), | |
1803 | BPF_JMP_IMM(BPF_JEQ, BPF_REG_2, 0, 0), | |
1804 | BPF_MOV64_IMM(BPF_REG_0, 0), | |
1805 | BPF_EXIT_INSN(), | |
1806 | }, | |
1807 | .errstr_unpriv = "R2 pointer comparison", | |
1808 | .result_unpriv = REJECT, | |
1809 | .result = ACCEPT, | |
1810 | }, | |
1811 | { | |
1812 | "unpriv: obfuscate stack pointer", | |
1813 | .insns = { | |
1814 | BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), | |
1815 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8), | |
1816 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8), | |
1817 | BPF_MOV64_IMM(BPF_REG_0, 0), | |
1818 | BPF_EXIT_INSN(), | |
1819 | }, | |
1820 | .errstr_unpriv = "R2 pointer arithmetic", | |
1821 | .result_unpriv = REJECT, | |
1822 | .result = ACCEPT, | |
1823 | }, | |
3f2050e2 DB |
1824 | { |
1825 | "raw_stack: no skb_load_bytes", | |
1826 | .insns = { | |
1827 | BPF_MOV64_IMM(BPF_REG_2, 4), | |
1828 | BPF_ALU64_REG(BPF_MOV, BPF_REG_6, BPF_REG_10), | |
1829 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_6, -8), | |
1830 | BPF_MOV64_REG(BPF_REG_3, BPF_REG_6), | |
1831 | BPF_MOV64_IMM(BPF_REG_4, 8), | |
1832 | /* Call to skb_load_bytes() omitted. */ | |
1833 | BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_6, 0), | |
1834 | BPF_EXIT_INSN(), | |
1835 | }, | |
1836 | .result = REJECT, | |
1837 | .errstr = "invalid read from stack off -8+0 size 8", | |
1838 | .prog_type = BPF_PROG_TYPE_SCHED_CLS, | |
1839 | }, | |
7d95b0ab DB |
1840 | { |
1841 | "raw_stack: skb_load_bytes, negative len", | |
1842 | .insns = { | |
1843 | BPF_MOV64_IMM(BPF_REG_2, 4), | |
1844 | BPF_ALU64_REG(BPF_MOV, BPF_REG_6, BPF_REG_10), | |
1845 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_6, -8), | |
1846 | BPF_MOV64_REG(BPF_REG_3, BPF_REG_6), | |
1847 | BPF_MOV64_IMM(BPF_REG_4, -8), | |
5aa5bd14 DB |
1848 | BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, |
1849 | BPF_FUNC_skb_load_bytes), | |
7d95b0ab DB |
1850 | BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_6, 0), |
1851 | BPF_EXIT_INSN(), | |
1852 | }, | |
1853 | .result = REJECT, | |
1854 | .errstr = "invalid stack type R3", | |
1855 | .prog_type = BPF_PROG_TYPE_SCHED_CLS, | |
1856 | }, | |
1857 | { | |
1858 | "raw_stack: skb_load_bytes, negative len 2", | |
1859 | .insns = { | |
1860 | BPF_MOV64_IMM(BPF_REG_2, 4), | |
1861 | BPF_ALU64_REG(BPF_MOV, BPF_REG_6, BPF_REG_10), | |
1862 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_6, -8), | |
1863 | BPF_MOV64_REG(BPF_REG_3, BPF_REG_6), | |
1864 | BPF_MOV64_IMM(BPF_REG_4, ~0), | |
5aa5bd14 DB |
1865 | BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, |
1866 | BPF_FUNC_skb_load_bytes), | |
7d95b0ab DB |
1867 | BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_6, 0), |
1868 | BPF_EXIT_INSN(), | |
1869 | }, | |
1870 | .result = REJECT, | |
1871 | .errstr = "invalid stack type R3", | |
1872 | .prog_type = BPF_PROG_TYPE_SCHED_CLS, | |
1873 | }, | |
1874 | { | |
1875 | "raw_stack: skb_load_bytes, zero len", | |
1876 | .insns = { | |
1877 | BPF_MOV64_IMM(BPF_REG_2, 4), | |
1878 | BPF_ALU64_REG(BPF_MOV, BPF_REG_6, BPF_REG_10), | |
1879 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_6, -8), | |
1880 | BPF_MOV64_REG(BPF_REG_3, BPF_REG_6), | |
1881 | BPF_MOV64_IMM(BPF_REG_4, 0), | |
5aa5bd14 DB |
1882 | BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, |
1883 | BPF_FUNC_skb_load_bytes), | |
7d95b0ab DB |
1884 | BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_6, 0), |
1885 | BPF_EXIT_INSN(), | |
1886 | }, | |
1887 | .result = REJECT, | |
1888 | .errstr = "invalid stack type R3", | |
1889 | .prog_type = BPF_PROG_TYPE_SCHED_CLS, | |
1890 | }, | |
3f2050e2 DB |
1891 | { |
1892 | "raw_stack: skb_load_bytes, no init", | |
1893 | .insns = { | |
1894 | BPF_MOV64_IMM(BPF_REG_2, 4), | |
1895 | BPF_ALU64_REG(BPF_MOV, BPF_REG_6, BPF_REG_10), | |
1896 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_6, -8), | |
1897 | BPF_MOV64_REG(BPF_REG_3, BPF_REG_6), | |
1898 | BPF_MOV64_IMM(BPF_REG_4, 8), | |
5aa5bd14 DB |
1899 | BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, |
1900 | BPF_FUNC_skb_load_bytes), | |
3f2050e2 DB |
1901 | BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_6, 0), |
1902 | BPF_EXIT_INSN(), | |
1903 | }, | |
1904 | .result = ACCEPT, | |
1905 | .prog_type = BPF_PROG_TYPE_SCHED_CLS, | |
1906 | }, | |
1907 | { | |
1908 | "raw_stack: skb_load_bytes, init", | |
1909 | .insns = { | |
1910 | BPF_MOV64_IMM(BPF_REG_2, 4), | |
1911 | BPF_ALU64_REG(BPF_MOV, BPF_REG_6, BPF_REG_10), | |
1912 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_6, -8), | |
1913 | BPF_ST_MEM(BPF_DW, BPF_REG_6, 0, 0xcafe), | |
1914 | BPF_MOV64_REG(BPF_REG_3, BPF_REG_6), | |
1915 | BPF_MOV64_IMM(BPF_REG_4, 8), | |
5aa5bd14 DB |
1916 | BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, |
1917 | BPF_FUNC_skb_load_bytes), | |
3f2050e2 DB |
1918 | BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_6, 0), |
1919 | BPF_EXIT_INSN(), | |
1920 | }, | |
1921 | .result = ACCEPT, | |
1922 | .prog_type = BPF_PROG_TYPE_SCHED_CLS, | |
1923 | }, | |
1924 | { | |
1925 | "raw_stack: skb_load_bytes, spilled regs around bounds", | |
1926 | .insns = { | |
1927 | BPF_MOV64_IMM(BPF_REG_2, 4), | |
1928 | BPF_ALU64_REG(BPF_MOV, BPF_REG_6, BPF_REG_10), | |
1929 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_6, -16), | |
5aa5bd14 DB |
1930 | BPF_STX_MEM(BPF_DW, BPF_REG_6, BPF_REG_1, -8), |
1931 | BPF_STX_MEM(BPF_DW, BPF_REG_6, BPF_REG_1, 8), | |
3f2050e2 DB |
1932 | BPF_MOV64_REG(BPF_REG_3, BPF_REG_6), |
1933 | BPF_MOV64_IMM(BPF_REG_4, 8), | |
5aa5bd14 DB |
1934 | BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, |
1935 | BPF_FUNC_skb_load_bytes), | |
1936 | BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_6, -8), | |
1937 | BPF_LDX_MEM(BPF_DW, BPF_REG_2, BPF_REG_6, 8), | |
3f2050e2 DB |
1938 | BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_0, |
1939 | offsetof(struct __sk_buff, mark)), | |
1940 | BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_2, | |
1941 | offsetof(struct __sk_buff, priority)), | |
1942 | BPF_ALU64_REG(BPF_ADD, BPF_REG_0, BPF_REG_2), | |
1943 | BPF_EXIT_INSN(), | |
1944 | }, | |
1945 | .result = ACCEPT, | |
1946 | .prog_type = BPF_PROG_TYPE_SCHED_CLS, | |
1947 | }, | |
1948 | { | |
1949 | "raw_stack: skb_load_bytes, spilled regs corruption", | |
1950 | .insns = { | |
1951 | BPF_MOV64_IMM(BPF_REG_2, 4), | |
1952 | BPF_ALU64_REG(BPF_MOV, BPF_REG_6, BPF_REG_10), | |
1953 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_6, -8), | |
5aa5bd14 | 1954 | BPF_STX_MEM(BPF_DW, BPF_REG_6, BPF_REG_1, 0), |
3f2050e2 DB |
1955 | BPF_MOV64_REG(BPF_REG_3, BPF_REG_6), |
1956 | BPF_MOV64_IMM(BPF_REG_4, 8), | |
5aa5bd14 DB |
1957 | BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, |
1958 | BPF_FUNC_skb_load_bytes), | |
1959 | BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_6, 0), | |
3f2050e2 DB |
1960 | BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_0, |
1961 | offsetof(struct __sk_buff, mark)), | |
1962 | BPF_EXIT_INSN(), | |
1963 | }, | |
1964 | .result = REJECT, | |
1965 | .errstr = "R0 invalid mem access 'inv'", | |
1966 | .prog_type = BPF_PROG_TYPE_SCHED_CLS, | |
1967 | }, | |
1968 | { | |
1969 | "raw_stack: skb_load_bytes, spilled regs corruption 2", | |
1970 | .insns = { | |
1971 | BPF_MOV64_IMM(BPF_REG_2, 4), | |
1972 | BPF_ALU64_REG(BPF_MOV, BPF_REG_6, BPF_REG_10), | |
1973 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_6, -16), | |
5aa5bd14 DB |
1974 | BPF_STX_MEM(BPF_DW, BPF_REG_6, BPF_REG_1, -8), |
1975 | BPF_STX_MEM(BPF_DW, BPF_REG_6, BPF_REG_1, 0), | |
1976 | BPF_STX_MEM(BPF_DW, BPF_REG_6, BPF_REG_1, 8), | |
3f2050e2 DB |
1977 | BPF_MOV64_REG(BPF_REG_3, BPF_REG_6), |
1978 | BPF_MOV64_IMM(BPF_REG_4, 8), | |
5aa5bd14 DB |
1979 | BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, |
1980 | BPF_FUNC_skb_load_bytes), | |
1981 | BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_6, -8), | |
1982 | BPF_LDX_MEM(BPF_DW, BPF_REG_2, BPF_REG_6, 8), | |
1983 | BPF_LDX_MEM(BPF_DW, BPF_REG_3, BPF_REG_6, 0), | |
3f2050e2 DB |
1984 | BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_0, |
1985 | offsetof(struct __sk_buff, mark)), | |
1986 | BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_2, | |
1987 | offsetof(struct __sk_buff, priority)), | |
1988 | BPF_ALU64_REG(BPF_ADD, BPF_REG_0, BPF_REG_2), | |
1989 | BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_3, | |
1990 | offsetof(struct __sk_buff, pkt_type)), | |
1991 | BPF_ALU64_REG(BPF_ADD, BPF_REG_0, BPF_REG_3), | |
1992 | BPF_EXIT_INSN(), | |
1993 | }, | |
1994 | .result = REJECT, | |
1995 | .errstr = "R3 invalid mem access 'inv'", | |
1996 | .prog_type = BPF_PROG_TYPE_SCHED_CLS, | |
1997 | }, | |
1998 | { | |
1999 | "raw_stack: skb_load_bytes, spilled regs + data", | |
2000 | .insns = { | |
2001 | BPF_MOV64_IMM(BPF_REG_2, 4), | |
2002 | BPF_ALU64_REG(BPF_MOV, BPF_REG_6, BPF_REG_10), | |
2003 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_6, -16), | |
5aa5bd14 DB |
2004 | BPF_STX_MEM(BPF_DW, BPF_REG_6, BPF_REG_1, -8), |
2005 | BPF_STX_MEM(BPF_DW, BPF_REG_6, BPF_REG_1, 0), | |
2006 | BPF_STX_MEM(BPF_DW, BPF_REG_6, BPF_REG_1, 8), | |
3f2050e2 DB |
2007 | BPF_MOV64_REG(BPF_REG_3, BPF_REG_6), |
2008 | BPF_MOV64_IMM(BPF_REG_4, 8), | |
5aa5bd14 DB |
2009 | BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, |
2010 | BPF_FUNC_skb_load_bytes), | |
2011 | BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_6, -8), | |
2012 | BPF_LDX_MEM(BPF_DW, BPF_REG_2, BPF_REG_6, 8), | |
2013 | BPF_LDX_MEM(BPF_DW, BPF_REG_3, BPF_REG_6, 0), | |
3f2050e2 DB |
2014 | BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_0, |
2015 | offsetof(struct __sk_buff, mark)), | |
2016 | BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_2, | |
2017 | offsetof(struct __sk_buff, priority)), | |
2018 | BPF_ALU64_REG(BPF_ADD, BPF_REG_0, BPF_REG_2), | |
2019 | BPF_ALU64_REG(BPF_ADD, BPF_REG_0, BPF_REG_3), | |
2020 | BPF_EXIT_INSN(), | |
2021 | }, | |
2022 | .result = ACCEPT, | |
2023 | .prog_type = BPF_PROG_TYPE_SCHED_CLS, | |
2024 | }, | |
2025 | { | |
2026 | "raw_stack: skb_load_bytes, invalid access 1", | |
2027 | .insns = { | |
2028 | BPF_MOV64_IMM(BPF_REG_2, 4), | |
2029 | BPF_ALU64_REG(BPF_MOV, BPF_REG_6, BPF_REG_10), | |
2030 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_6, -513), | |
2031 | BPF_MOV64_REG(BPF_REG_3, BPF_REG_6), | |
2032 | BPF_MOV64_IMM(BPF_REG_4, 8), | |
5aa5bd14 DB |
2033 | BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, |
2034 | BPF_FUNC_skb_load_bytes), | |
3f2050e2 DB |
2035 | BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_6, 0), |
2036 | BPF_EXIT_INSN(), | |
2037 | }, | |
2038 | .result = REJECT, | |
2039 | .errstr = "invalid stack type R3 off=-513 access_size=8", | |
2040 | .prog_type = BPF_PROG_TYPE_SCHED_CLS, | |
2041 | }, | |
2042 | { | |
2043 | "raw_stack: skb_load_bytes, invalid access 2", | |
2044 | .insns = { | |
2045 | BPF_MOV64_IMM(BPF_REG_2, 4), | |
2046 | BPF_ALU64_REG(BPF_MOV, BPF_REG_6, BPF_REG_10), | |
2047 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_6, -1), | |
2048 | BPF_MOV64_REG(BPF_REG_3, BPF_REG_6), | |
2049 | BPF_MOV64_IMM(BPF_REG_4, 8), | |
5aa5bd14 DB |
2050 | BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, |
2051 | BPF_FUNC_skb_load_bytes), | |
3f2050e2 DB |
2052 | BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_6, 0), |
2053 | BPF_EXIT_INSN(), | |
2054 | }, | |
2055 | .result = REJECT, | |
2056 | .errstr = "invalid stack type R3 off=-1 access_size=8", | |
2057 | .prog_type = BPF_PROG_TYPE_SCHED_CLS, | |
2058 | }, | |
2059 | { | |
2060 | "raw_stack: skb_load_bytes, invalid access 3", | |
2061 | .insns = { | |
2062 | BPF_MOV64_IMM(BPF_REG_2, 4), | |
2063 | BPF_ALU64_REG(BPF_MOV, BPF_REG_6, BPF_REG_10), | |
2064 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_6, 0xffffffff), | |
2065 | BPF_MOV64_REG(BPF_REG_3, BPF_REG_6), | |
2066 | BPF_MOV64_IMM(BPF_REG_4, 0xffffffff), | |
5aa5bd14 DB |
2067 | BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, |
2068 | BPF_FUNC_skb_load_bytes), | |
3f2050e2 DB |
2069 | BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_6, 0), |
2070 | BPF_EXIT_INSN(), | |
2071 | }, | |
2072 | .result = REJECT, | |
2073 | .errstr = "invalid stack type R3 off=-1 access_size=-1", | |
2074 | .prog_type = BPF_PROG_TYPE_SCHED_CLS, | |
2075 | }, | |
2076 | { | |
2077 | "raw_stack: skb_load_bytes, invalid access 4", | |
2078 | .insns = { | |
2079 | BPF_MOV64_IMM(BPF_REG_2, 4), | |
2080 | BPF_ALU64_REG(BPF_MOV, BPF_REG_6, BPF_REG_10), | |
2081 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_6, -1), | |
2082 | BPF_MOV64_REG(BPF_REG_3, BPF_REG_6), | |
2083 | BPF_MOV64_IMM(BPF_REG_4, 0x7fffffff), | |
5aa5bd14 DB |
2084 | BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, |
2085 | BPF_FUNC_skb_load_bytes), | |
3f2050e2 DB |
2086 | BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_6, 0), |
2087 | BPF_EXIT_INSN(), | |
2088 | }, | |
2089 | .result = REJECT, | |
2090 | .errstr = "invalid stack type R3 off=-1 access_size=2147483647", | |
2091 | .prog_type = BPF_PROG_TYPE_SCHED_CLS, | |
2092 | }, | |
2093 | { | |
2094 | "raw_stack: skb_load_bytes, invalid access 5", | |
2095 | .insns = { | |
2096 | BPF_MOV64_IMM(BPF_REG_2, 4), | |
2097 | BPF_ALU64_REG(BPF_MOV, BPF_REG_6, BPF_REG_10), | |
2098 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_6, -512), | |
2099 | BPF_MOV64_REG(BPF_REG_3, BPF_REG_6), | |
2100 | BPF_MOV64_IMM(BPF_REG_4, 0x7fffffff), | |
5aa5bd14 DB |
2101 | BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, |
2102 | BPF_FUNC_skb_load_bytes), | |
3f2050e2 DB |
2103 | BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_6, 0), |
2104 | BPF_EXIT_INSN(), | |
2105 | }, | |
2106 | .result = REJECT, | |
2107 | .errstr = "invalid stack type R3 off=-512 access_size=2147483647", | |
2108 | .prog_type = BPF_PROG_TYPE_SCHED_CLS, | |
2109 | }, | |
2110 | { | |
2111 | "raw_stack: skb_load_bytes, invalid access 6", | |
2112 | .insns = { | |
2113 | BPF_MOV64_IMM(BPF_REG_2, 4), | |
2114 | BPF_ALU64_REG(BPF_MOV, BPF_REG_6, BPF_REG_10), | |
2115 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_6, -512), | |
2116 | BPF_MOV64_REG(BPF_REG_3, BPF_REG_6), | |
2117 | BPF_MOV64_IMM(BPF_REG_4, 0), | |
5aa5bd14 DB |
2118 | BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, |
2119 | BPF_FUNC_skb_load_bytes), | |
3f2050e2 DB |
2120 | BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_6, 0), |
2121 | BPF_EXIT_INSN(), | |
2122 | }, | |
2123 | .result = REJECT, | |
2124 | .errstr = "invalid stack type R3 off=-512 access_size=0", | |
2125 | .prog_type = BPF_PROG_TYPE_SCHED_CLS, | |
2126 | }, | |
2127 | { | |
2128 | "raw_stack: skb_load_bytes, large access", | |
2129 | .insns = { | |
2130 | BPF_MOV64_IMM(BPF_REG_2, 4), | |
2131 | BPF_ALU64_REG(BPF_MOV, BPF_REG_6, BPF_REG_10), | |
2132 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_6, -512), | |
2133 | BPF_MOV64_REG(BPF_REG_3, BPF_REG_6), | |
2134 | BPF_MOV64_IMM(BPF_REG_4, 512), | |
5aa5bd14 DB |
2135 | BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, |
2136 | BPF_FUNC_skb_load_bytes), | |
3f2050e2 DB |
2137 | BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_6, 0), |
2138 | BPF_EXIT_INSN(), | |
2139 | }, | |
2140 | .result = ACCEPT, | |
2141 | .prog_type = BPF_PROG_TYPE_SCHED_CLS, | |
2142 | }, | |
883e44e4 | 2143 | { |
1633ac0a | 2144 | "direct packet access: test1", |
883e44e4 AS |
2145 | .insns = { |
2146 | BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1, | |
2147 | offsetof(struct __sk_buff, data)), | |
2148 | BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1, | |
2149 | offsetof(struct __sk_buff, data_end)), | |
2150 | BPF_MOV64_REG(BPF_REG_0, BPF_REG_2), | |
2151 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_0, 8), | |
2152 | BPF_JMP_REG(BPF_JGT, BPF_REG_0, BPF_REG_3, 1), | |
2153 | BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_2, 0), | |
2154 | BPF_MOV64_IMM(BPF_REG_0, 0), | |
2155 | BPF_EXIT_INSN(), | |
2156 | }, | |
2157 | .result = ACCEPT, | |
2158 | .prog_type = BPF_PROG_TYPE_SCHED_CLS, | |
2159 | }, | |
2160 | { | |
1633ac0a | 2161 | "direct packet access: test2", |
883e44e4 AS |
2162 | .insns = { |
2163 | BPF_MOV64_IMM(BPF_REG_0, 1), | |
2164 | BPF_LDX_MEM(BPF_W, BPF_REG_4, BPF_REG_1, | |
2165 | offsetof(struct __sk_buff, data_end)), | |
2166 | BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1, | |
2167 | offsetof(struct __sk_buff, data)), | |
2168 | BPF_MOV64_REG(BPF_REG_5, BPF_REG_3), | |
2169 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_5, 14), | |
2170 | BPF_JMP_REG(BPF_JGT, BPF_REG_5, BPF_REG_4, 15), | |
2171 | BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_3, 7), | |
2172 | BPF_LDX_MEM(BPF_B, BPF_REG_4, BPF_REG_3, 12), | |
2173 | BPF_ALU64_IMM(BPF_MUL, BPF_REG_4, 14), | |
2174 | BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1, | |
2175 | offsetof(struct __sk_buff, data)), | |
2176 | BPF_ALU64_REG(BPF_ADD, BPF_REG_3, BPF_REG_4), | |
2177 | BPF_MOV64_REG(BPF_REG_2, BPF_REG_1), | |
2178 | BPF_ALU64_IMM(BPF_LSH, BPF_REG_2, 48), | |
2179 | BPF_ALU64_IMM(BPF_RSH, BPF_REG_2, 48), | |
2180 | BPF_ALU64_REG(BPF_ADD, BPF_REG_3, BPF_REG_2), | |
2181 | BPF_MOV64_REG(BPF_REG_2, BPF_REG_3), | |
2182 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, 8), | |
2183 | BPF_LDX_MEM(BPF_W, BPF_REG_1, BPF_REG_1, | |
2184 | offsetof(struct __sk_buff, data_end)), | |
2185 | BPF_JMP_REG(BPF_JGT, BPF_REG_2, BPF_REG_1, 1), | |
2186 | BPF_LDX_MEM(BPF_B, BPF_REG_1, BPF_REG_3, 4), | |
2187 | BPF_MOV64_IMM(BPF_REG_0, 0), | |
2188 | BPF_EXIT_INSN(), | |
2189 | }, | |
2190 | .result = ACCEPT, | |
2191 | .prog_type = BPF_PROG_TYPE_SCHED_CLS, | |
2192 | }, | |
2193 | { | |
1633ac0a | 2194 | "direct packet access: test3", |
883e44e4 AS |
2195 | .insns = { |
2196 | BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1, | |
2197 | offsetof(struct __sk_buff, data)), | |
2198 | BPF_MOV64_IMM(BPF_REG_0, 0), | |
2199 | BPF_EXIT_INSN(), | |
2200 | }, | |
2201 | .errstr = "invalid bpf_context access off=76", | |
2202 | .result = REJECT, | |
2203 | .prog_type = BPF_PROG_TYPE_SOCKET_FILTER, | |
2204 | }, | |
2205 | { | |
7d95b0ab | 2206 | "direct packet access: test4 (write)", |
883e44e4 AS |
2207 | .insns = { |
2208 | BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1, | |
2209 | offsetof(struct __sk_buff, data)), | |
2210 | BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1, | |
2211 | offsetof(struct __sk_buff, data_end)), | |
2212 | BPF_MOV64_REG(BPF_REG_0, BPF_REG_2), | |
2213 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_0, 8), | |
2214 | BPF_JMP_REG(BPF_JGT, BPF_REG_0, BPF_REG_3, 1), | |
2215 | BPF_STX_MEM(BPF_B, BPF_REG_2, BPF_REG_2, 0), | |
2216 | BPF_MOV64_IMM(BPF_REG_0, 0), | |
2217 | BPF_EXIT_INSN(), | |
2218 | }, | |
7d95b0ab | 2219 | .result = ACCEPT, |
883e44e4 AS |
2220 | .prog_type = BPF_PROG_TYPE_SCHED_CLS, |
2221 | }, | |
2d2be8ca DB |
2222 | { |
2223 | "direct packet access: test5 (pkt_end >= reg, good access)", | |
2224 | .insns = { | |
2225 | BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1, | |
2226 | offsetof(struct __sk_buff, data)), | |
2227 | BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1, | |
2228 | offsetof(struct __sk_buff, data_end)), | |
2229 | BPF_MOV64_REG(BPF_REG_0, BPF_REG_2), | |
2230 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_0, 8), | |
2231 | BPF_JMP_REG(BPF_JGE, BPF_REG_3, BPF_REG_0, 2), | |
2232 | BPF_MOV64_IMM(BPF_REG_0, 1), | |
2233 | BPF_EXIT_INSN(), | |
2234 | BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_2, 0), | |
2235 | BPF_MOV64_IMM(BPF_REG_0, 0), | |
2236 | BPF_EXIT_INSN(), | |
2237 | }, | |
2238 | .result = ACCEPT, | |
2239 | .prog_type = BPF_PROG_TYPE_SCHED_CLS, | |
2240 | }, | |
2241 | { | |
2242 | "direct packet access: test6 (pkt_end >= reg, bad access)", | |
2243 | .insns = { | |
2244 | BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1, | |
2245 | offsetof(struct __sk_buff, data)), | |
2246 | BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1, | |
2247 | offsetof(struct __sk_buff, data_end)), | |
2248 | BPF_MOV64_REG(BPF_REG_0, BPF_REG_2), | |
2249 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_0, 8), | |
2250 | BPF_JMP_REG(BPF_JGE, BPF_REG_3, BPF_REG_0, 3), | |
2251 | BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_2, 0), | |
2252 | BPF_MOV64_IMM(BPF_REG_0, 1), | |
2253 | BPF_EXIT_INSN(), | |
2254 | BPF_MOV64_IMM(BPF_REG_0, 0), | |
2255 | BPF_EXIT_INSN(), | |
2256 | }, | |
2257 | .errstr = "invalid access to packet", | |
2258 | .result = REJECT, | |
2259 | .prog_type = BPF_PROG_TYPE_SCHED_CLS, | |
2260 | }, | |
2261 | { | |
2262 | "direct packet access: test7 (pkt_end >= reg, both accesses)", | |
2263 | .insns = { | |
2264 | BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1, | |
2265 | offsetof(struct __sk_buff, data)), | |
2266 | BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1, | |
2267 | offsetof(struct __sk_buff, data_end)), | |
2268 | BPF_MOV64_REG(BPF_REG_0, BPF_REG_2), | |
2269 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_0, 8), | |
2270 | BPF_JMP_REG(BPF_JGE, BPF_REG_3, BPF_REG_0, 3), | |
2271 | BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_2, 0), | |
2272 | BPF_MOV64_IMM(BPF_REG_0, 1), | |
2273 | BPF_EXIT_INSN(), | |
2274 | BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_2, 0), | |
2275 | BPF_MOV64_IMM(BPF_REG_0, 0), | |
2276 | BPF_EXIT_INSN(), | |
2277 | }, | |
2278 | .errstr = "invalid access to packet", | |
2279 | .result = REJECT, | |
2280 | .prog_type = BPF_PROG_TYPE_SCHED_CLS, | |
2281 | }, | |
2282 | { | |
2283 | "direct packet access: test8 (double test, variant 1)", | |
2284 | .insns = { | |
2285 | BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1, | |
2286 | offsetof(struct __sk_buff, data)), | |
2287 | BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1, | |
2288 | offsetof(struct __sk_buff, data_end)), | |
2289 | BPF_MOV64_REG(BPF_REG_0, BPF_REG_2), | |
2290 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_0, 8), | |
2291 | BPF_JMP_REG(BPF_JGE, BPF_REG_3, BPF_REG_0, 4), | |
2292 | BPF_JMP_REG(BPF_JGT, BPF_REG_0, BPF_REG_3, 1), | |
2293 | BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_2, 0), | |
2294 | BPF_MOV64_IMM(BPF_REG_0, 1), | |
2295 | BPF_EXIT_INSN(), | |
2296 | BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_2, 0), | |
2297 | BPF_MOV64_IMM(BPF_REG_0, 0), | |
2298 | BPF_EXIT_INSN(), | |
2299 | }, | |
2300 | .result = ACCEPT, | |
2301 | .prog_type = BPF_PROG_TYPE_SCHED_CLS, | |
2302 | }, | |
2303 | { | |
2304 | "direct packet access: test9 (double test, variant 2)", | |
2305 | .insns = { | |
2306 | BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1, | |
2307 | offsetof(struct __sk_buff, data)), | |
2308 | BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1, | |
2309 | offsetof(struct __sk_buff, data_end)), | |
2310 | BPF_MOV64_REG(BPF_REG_0, BPF_REG_2), | |
2311 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_0, 8), | |
2312 | BPF_JMP_REG(BPF_JGE, BPF_REG_3, BPF_REG_0, 2), | |
2313 | BPF_MOV64_IMM(BPF_REG_0, 1), | |
2314 | BPF_EXIT_INSN(), | |
2315 | BPF_JMP_REG(BPF_JGT, BPF_REG_0, BPF_REG_3, 1), | |
2316 | BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_2, 0), | |
2317 | BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_2, 0), | |
2318 | BPF_MOV64_IMM(BPF_REG_0, 0), | |
2319 | BPF_EXIT_INSN(), | |
2320 | }, | |
2321 | .result = ACCEPT, | |
2322 | .prog_type = BPF_PROG_TYPE_SCHED_CLS, | |
2323 | }, | |
7d95b0ab DB |
2324 | { |
2325 | "direct packet access: test10 (write invalid)", | |
2326 | .insns = { | |
2327 | BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1, | |
2328 | offsetof(struct __sk_buff, data)), | |
2329 | BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1, | |
2330 | offsetof(struct __sk_buff, data_end)), | |
2331 | BPF_MOV64_REG(BPF_REG_0, BPF_REG_2), | |
2332 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_0, 8), | |
2333 | BPF_JMP_REG(BPF_JGT, BPF_REG_0, BPF_REG_3, 2), | |
2334 | BPF_MOV64_IMM(BPF_REG_0, 0), | |
2335 | BPF_EXIT_INSN(), | |
2336 | BPF_STX_MEM(BPF_B, BPF_REG_2, BPF_REG_2, 0), | |
2337 | BPF_MOV64_IMM(BPF_REG_0, 0), | |
2338 | BPF_EXIT_INSN(), | |
2339 | }, | |
2340 | .errstr = "invalid access to packet", | |
2341 | .result = REJECT, | |
2342 | .prog_type = BPF_PROG_TYPE_SCHED_CLS, | |
2343 | }, | |
3fadc801 DB |
2344 | { |
2345 | "direct packet access: test11 (shift, good access)", | |
2346 | .insns = { | |
2347 | BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1, | |
2348 | offsetof(struct __sk_buff, data)), | |
2349 | BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1, | |
2350 | offsetof(struct __sk_buff, data_end)), | |
2351 | BPF_MOV64_REG(BPF_REG_0, BPF_REG_2), | |
2352 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_0, 22), | |
2353 | BPF_JMP_REG(BPF_JGT, BPF_REG_0, BPF_REG_3, 8), | |
2354 | BPF_MOV64_IMM(BPF_REG_3, 144), | |
2355 | BPF_MOV64_REG(BPF_REG_5, BPF_REG_3), | |
2356 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_5, 23), | |
2357 | BPF_ALU64_IMM(BPF_RSH, BPF_REG_5, 3), | |
2358 | BPF_MOV64_REG(BPF_REG_6, BPF_REG_2), | |
2359 | BPF_ALU64_REG(BPF_ADD, BPF_REG_6, BPF_REG_5), | |
2360 | BPF_MOV64_IMM(BPF_REG_0, 1), | |
2361 | BPF_EXIT_INSN(), | |
2362 | BPF_MOV64_IMM(BPF_REG_0, 0), | |
2363 | BPF_EXIT_INSN(), | |
2364 | }, | |
2365 | .result = ACCEPT, | |
2366 | .prog_type = BPF_PROG_TYPE_SCHED_CLS, | |
2367 | }, | |
2368 | { | |
2369 | "direct packet access: test12 (and, good access)", | |
2370 | .insns = { | |
2371 | BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1, | |
2372 | offsetof(struct __sk_buff, data)), | |
2373 | BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1, | |
2374 | offsetof(struct __sk_buff, data_end)), | |
2375 | BPF_MOV64_REG(BPF_REG_0, BPF_REG_2), | |
2376 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_0, 22), | |
2377 | BPF_JMP_REG(BPF_JGT, BPF_REG_0, BPF_REG_3, 8), | |
2378 | BPF_MOV64_IMM(BPF_REG_3, 144), | |
2379 | BPF_MOV64_REG(BPF_REG_5, BPF_REG_3), | |
2380 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_5, 23), | |
2381 | BPF_ALU64_IMM(BPF_AND, BPF_REG_5, 15), | |
2382 | BPF_MOV64_REG(BPF_REG_6, BPF_REG_2), | |
2383 | BPF_ALU64_REG(BPF_ADD, BPF_REG_6, BPF_REG_5), | |
2384 | BPF_MOV64_IMM(BPF_REG_0, 1), | |
2385 | BPF_EXIT_INSN(), | |
2386 | BPF_MOV64_IMM(BPF_REG_0, 0), | |
2387 | BPF_EXIT_INSN(), | |
2388 | }, | |
2389 | .result = ACCEPT, | |
2390 | .prog_type = BPF_PROG_TYPE_SCHED_CLS, | |
2391 | }, | |
2392 | { | |
2393 | "direct packet access: test13 (branches, good access)", | |
2394 | .insns = { | |
2395 | BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1, | |
2396 | offsetof(struct __sk_buff, data)), | |
2397 | BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1, | |
2398 | offsetof(struct __sk_buff, data_end)), | |
2399 | BPF_MOV64_REG(BPF_REG_0, BPF_REG_2), | |
2400 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_0, 22), | |
2401 | BPF_JMP_REG(BPF_JGT, BPF_REG_0, BPF_REG_3, 13), | |
2402 | BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1, | |
2403 | offsetof(struct __sk_buff, mark)), | |
2404 | BPF_MOV64_IMM(BPF_REG_4, 1), | |
2405 | BPF_JMP_REG(BPF_JGT, BPF_REG_3, BPF_REG_4, 2), | |
2406 | BPF_MOV64_IMM(BPF_REG_3, 14), | |
2407 | BPF_JMP_IMM(BPF_JA, 0, 0, 1), | |
2408 | BPF_MOV64_IMM(BPF_REG_3, 24), | |
2409 | BPF_MOV64_REG(BPF_REG_5, BPF_REG_3), | |
2410 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_5, 23), | |
2411 | BPF_ALU64_IMM(BPF_AND, BPF_REG_5, 15), | |
2412 | BPF_MOV64_REG(BPF_REG_6, BPF_REG_2), | |
2413 | BPF_ALU64_REG(BPF_ADD, BPF_REG_6, BPF_REG_5), | |
2414 | BPF_MOV64_IMM(BPF_REG_0, 1), | |
2415 | BPF_EXIT_INSN(), | |
2416 | BPF_MOV64_IMM(BPF_REG_0, 0), | |
2417 | BPF_EXIT_INSN(), | |
2418 | }, | |
2419 | .result = ACCEPT, | |
2420 | .prog_type = BPF_PROG_TYPE_SCHED_CLS, | |
2421 | }, | |
63dfef75 WT |
2422 | { |
2423 | "direct packet access: test14 (pkt_ptr += 0, CONST_IMM, good access)", | |
2424 | .insns = { | |
2425 | BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1, | |
2426 | offsetof(struct __sk_buff, data)), | |
2427 | BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1, | |
2428 | offsetof(struct __sk_buff, data_end)), | |
2429 | BPF_MOV64_REG(BPF_REG_0, BPF_REG_2), | |
2430 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_0, 22), | |
2431 | BPF_JMP_REG(BPF_JGT, BPF_REG_0, BPF_REG_3, 7), | |
2432 | BPF_MOV64_IMM(BPF_REG_5, 12), | |
2433 | BPF_ALU64_IMM(BPF_RSH, BPF_REG_5, 4), | |
2434 | BPF_MOV64_REG(BPF_REG_6, BPF_REG_2), | |
2435 | BPF_ALU64_REG(BPF_ADD, BPF_REG_6, BPF_REG_5), | |
2436 | BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_6, 0), | |
2437 | BPF_MOV64_IMM(BPF_REG_0, 1), | |
2438 | BPF_EXIT_INSN(), | |
2439 | BPF_MOV64_IMM(BPF_REG_0, 0), | |
2440 | BPF_EXIT_INSN(), | |
2441 | }, | |
2442 | .result = ACCEPT, | |
2443 | .prog_type = BPF_PROG_TYPE_SCHED_CLS, | |
2444 | }, | |
02ea80b1 DB |
2445 | { |
2446 | "direct packet access: test15 (spill with xadd)", | |
2447 | .insns = { | |
2448 | BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1, | |
2449 | offsetof(struct __sk_buff, data)), | |
2450 | BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1, | |
2451 | offsetof(struct __sk_buff, data_end)), | |
2452 | BPF_MOV64_REG(BPF_REG_0, BPF_REG_2), | |
2453 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_0, 8), | |
2454 | BPF_JMP_REG(BPF_JGT, BPF_REG_0, BPF_REG_3, 8), | |
2455 | BPF_MOV64_IMM(BPF_REG_5, 4096), | |
2456 | BPF_MOV64_REG(BPF_REG_4, BPF_REG_10), | |
2457 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_4, -8), | |
2458 | BPF_STX_MEM(BPF_DW, BPF_REG_4, BPF_REG_2, 0), | |
2459 | BPF_STX_XADD(BPF_DW, BPF_REG_4, BPF_REG_5, 0), | |
2460 | BPF_LDX_MEM(BPF_DW, BPF_REG_2, BPF_REG_4, 0), | |
2461 | BPF_STX_MEM(BPF_W, BPF_REG_2, BPF_REG_5, 0), | |
2462 | BPF_MOV64_IMM(BPF_REG_0, 0), | |
2463 | BPF_EXIT_INSN(), | |
2464 | }, | |
2465 | .errstr = "R2 invalid mem access 'inv'", | |
2466 | .result = REJECT, | |
2467 | .prog_type = BPF_PROG_TYPE_SCHED_CLS, | |
2468 | }, | |
1633ac0a AY |
2469 | { |
2470 | "helper access to packet: test1, valid packet_ptr range", | |
2471 | .insns = { | |
2472 | BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1, | |
2473 | offsetof(struct xdp_md, data)), | |
2474 | BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1, | |
2475 | offsetof(struct xdp_md, data_end)), | |
2476 | BPF_MOV64_REG(BPF_REG_1, BPF_REG_2), | |
2477 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, 8), | |
2478 | BPF_JMP_REG(BPF_JGT, BPF_REG_1, BPF_REG_3, 5), | |
2479 | BPF_LD_MAP_FD(BPF_REG_1, 0), | |
2480 | BPF_MOV64_REG(BPF_REG_3, BPF_REG_2), | |
2481 | BPF_MOV64_IMM(BPF_REG_4, 0), | |
5aa5bd14 DB |
2482 | BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, |
2483 | BPF_FUNC_map_update_elem), | |
1633ac0a AY |
2484 | BPF_MOV64_IMM(BPF_REG_0, 0), |
2485 | BPF_EXIT_INSN(), | |
2486 | }, | |
5aa5bd14 | 2487 | .fixup_map1 = { 5 }, |
1633ac0a AY |
2488 | .result_unpriv = ACCEPT, |
2489 | .result = ACCEPT, | |
2490 | .prog_type = BPF_PROG_TYPE_XDP, | |
2491 | }, | |
2492 | { | |
2493 | "helper access to packet: test2, unchecked packet_ptr", | |
2494 | .insns = { | |
2495 | BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1, | |
2496 | offsetof(struct xdp_md, data)), | |
2497 | BPF_LD_MAP_FD(BPF_REG_1, 0), | |
5aa5bd14 DB |
2498 | BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, |
2499 | BPF_FUNC_map_lookup_elem), | |
1633ac0a AY |
2500 | BPF_MOV64_IMM(BPF_REG_0, 0), |
2501 | BPF_EXIT_INSN(), | |
2502 | }, | |
5aa5bd14 | 2503 | .fixup_map1 = { 1 }, |
1633ac0a AY |
2504 | .result = REJECT, |
2505 | .errstr = "invalid access to packet", | |
2506 | .prog_type = BPF_PROG_TYPE_XDP, | |
2507 | }, | |
2508 | { | |
2509 | "helper access to packet: test3, variable add", | |
2510 | .insns = { | |
2511 | BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1, | |
2512 | offsetof(struct xdp_md, data)), | |
2513 | BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1, | |
2514 | offsetof(struct xdp_md, data_end)), | |
2515 | BPF_MOV64_REG(BPF_REG_4, BPF_REG_2), | |
2516 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_4, 8), | |
2517 | BPF_JMP_REG(BPF_JGT, BPF_REG_4, BPF_REG_3, 10), | |
2518 | BPF_LDX_MEM(BPF_B, BPF_REG_5, BPF_REG_2, 0), | |
2519 | BPF_MOV64_REG(BPF_REG_4, BPF_REG_2), | |
2520 | BPF_ALU64_REG(BPF_ADD, BPF_REG_4, BPF_REG_5), | |
2521 | BPF_MOV64_REG(BPF_REG_5, BPF_REG_4), | |
2522 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_5, 8), | |
2523 | BPF_JMP_REG(BPF_JGT, BPF_REG_5, BPF_REG_3, 4), | |
2524 | BPF_LD_MAP_FD(BPF_REG_1, 0), | |
2525 | BPF_MOV64_REG(BPF_REG_2, BPF_REG_4), | |
5aa5bd14 DB |
2526 | BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, |
2527 | BPF_FUNC_map_lookup_elem), | |
1633ac0a AY |
2528 | BPF_MOV64_IMM(BPF_REG_0, 0), |
2529 | BPF_EXIT_INSN(), | |
2530 | }, | |
5aa5bd14 | 2531 | .fixup_map1 = { 11 }, |
1633ac0a AY |
2532 | .result = ACCEPT, |
2533 | .prog_type = BPF_PROG_TYPE_XDP, | |
2534 | }, | |
2535 | { | |
2536 | "helper access to packet: test4, packet_ptr with bad range", | |
2537 | .insns = { | |
2538 | BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1, | |
2539 | offsetof(struct xdp_md, data)), | |
2540 | BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1, | |
2541 | offsetof(struct xdp_md, data_end)), | |
2542 | BPF_MOV64_REG(BPF_REG_4, BPF_REG_2), | |
2543 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_4, 4), | |
2544 | BPF_JMP_REG(BPF_JGT, BPF_REG_4, BPF_REG_3, 2), | |
2545 | BPF_MOV64_IMM(BPF_REG_0, 0), | |
2546 | BPF_EXIT_INSN(), | |
2547 | BPF_LD_MAP_FD(BPF_REG_1, 0), | |
5aa5bd14 DB |
2548 | BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, |
2549 | BPF_FUNC_map_lookup_elem), | |
1633ac0a AY |
2550 | BPF_MOV64_IMM(BPF_REG_0, 0), |
2551 | BPF_EXIT_INSN(), | |
2552 | }, | |
5aa5bd14 | 2553 | .fixup_map1 = { 7 }, |
1633ac0a AY |
2554 | .result = REJECT, |
2555 | .errstr = "invalid access to packet", | |
2556 | .prog_type = BPF_PROG_TYPE_XDP, | |
2557 | }, | |
2558 | { | |
2559 | "helper access to packet: test5, packet_ptr with too short range", | |
2560 | .insns = { | |
2561 | BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1, | |
2562 | offsetof(struct xdp_md, data)), | |
2563 | BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1, | |
2564 | offsetof(struct xdp_md, data_end)), | |
2565 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, 1), | |
2566 | BPF_MOV64_REG(BPF_REG_4, BPF_REG_2), | |
2567 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_4, 7), | |
2568 | BPF_JMP_REG(BPF_JGT, BPF_REG_4, BPF_REG_3, 3), | |
2569 | BPF_LD_MAP_FD(BPF_REG_1, 0), | |
5aa5bd14 DB |
2570 | BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, |
2571 | BPF_FUNC_map_lookup_elem), | |
1633ac0a AY |
2572 | BPF_MOV64_IMM(BPF_REG_0, 0), |
2573 | BPF_EXIT_INSN(), | |
2574 | }, | |
5aa5bd14 | 2575 | .fixup_map1 = { 6 }, |
1633ac0a AY |
2576 | .result = REJECT, |
2577 | .errstr = "invalid access to packet", | |
2578 | .prog_type = BPF_PROG_TYPE_XDP, | |
2579 | }, | |
7d95b0ab DB |
2580 | { |
2581 | "helper access to packet: test6, cls valid packet_ptr range", | |
2582 | .insns = { | |
2583 | BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1, | |
2584 | offsetof(struct __sk_buff, data)), | |
2585 | BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1, | |
2586 | offsetof(struct __sk_buff, data_end)), | |
2587 | BPF_MOV64_REG(BPF_REG_1, BPF_REG_2), | |
2588 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, 8), | |
2589 | BPF_JMP_REG(BPF_JGT, BPF_REG_1, BPF_REG_3, 5), | |
2590 | BPF_LD_MAP_FD(BPF_REG_1, 0), | |
2591 | BPF_MOV64_REG(BPF_REG_3, BPF_REG_2), | |
2592 | BPF_MOV64_IMM(BPF_REG_4, 0), | |
5aa5bd14 DB |
2593 | BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, |
2594 | BPF_FUNC_map_update_elem), | |
7d95b0ab DB |
2595 | BPF_MOV64_IMM(BPF_REG_0, 0), |
2596 | BPF_EXIT_INSN(), | |
2597 | }, | |
5aa5bd14 | 2598 | .fixup_map1 = { 5 }, |
7d95b0ab DB |
2599 | .result = ACCEPT, |
2600 | .prog_type = BPF_PROG_TYPE_SCHED_CLS, | |
2601 | }, | |
2602 | { | |
2603 | "helper access to packet: test7, cls unchecked packet_ptr", | |
2604 | .insns = { | |
2605 | BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1, | |
2606 | offsetof(struct __sk_buff, data)), | |
2607 | BPF_LD_MAP_FD(BPF_REG_1, 0), | |
5aa5bd14 DB |
2608 | BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, |
2609 | BPF_FUNC_map_lookup_elem), | |
7d95b0ab DB |
2610 | BPF_MOV64_IMM(BPF_REG_0, 0), |
2611 | BPF_EXIT_INSN(), | |
2612 | }, | |
5aa5bd14 | 2613 | .fixup_map1 = { 1 }, |
7d95b0ab DB |
2614 | .result = REJECT, |
2615 | .errstr = "invalid access to packet", | |
2616 | .prog_type = BPF_PROG_TYPE_SCHED_CLS, | |
2617 | }, | |
2618 | { | |
2619 | "helper access to packet: test8, cls variable add", | |
2620 | .insns = { | |
2621 | BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1, | |
2622 | offsetof(struct __sk_buff, data)), | |
2623 | BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1, | |
2624 | offsetof(struct __sk_buff, data_end)), | |
2625 | BPF_MOV64_REG(BPF_REG_4, BPF_REG_2), | |
2626 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_4, 8), | |
2627 | BPF_JMP_REG(BPF_JGT, BPF_REG_4, BPF_REG_3, 10), | |
2628 | BPF_LDX_MEM(BPF_B, BPF_REG_5, BPF_REG_2, 0), | |
2629 | BPF_MOV64_REG(BPF_REG_4, BPF_REG_2), | |
2630 | BPF_ALU64_REG(BPF_ADD, BPF_REG_4, BPF_REG_5), | |
2631 | BPF_MOV64_REG(BPF_REG_5, BPF_REG_4), | |
2632 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_5, 8), | |
2633 | BPF_JMP_REG(BPF_JGT, BPF_REG_5, BPF_REG_3, 4), | |
2634 | BPF_LD_MAP_FD(BPF_REG_1, 0), | |
2635 | BPF_MOV64_REG(BPF_REG_2, BPF_REG_4), | |
5aa5bd14 DB |
2636 | BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, |
2637 | BPF_FUNC_map_lookup_elem), | |
7d95b0ab DB |
2638 | BPF_MOV64_IMM(BPF_REG_0, 0), |
2639 | BPF_EXIT_INSN(), | |
2640 | }, | |
5aa5bd14 | 2641 | .fixup_map1 = { 11 }, |
7d95b0ab DB |
2642 | .result = ACCEPT, |
2643 | .prog_type = BPF_PROG_TYPE_SCHED_CLS, | |
2644 | }, | |
2645 | { | |
2646 | "helper access to packet: test9, cls packet_ptr with bad range", | |
2647 | .insns = { | |
2648 | BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1, | |
2649 | offsetof(struct __sk_buff, data)), | |
2650 | BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1, | |
2651 | offsetof(struct __sk_buff, data_end)), | |
2652 | BPF_MOV64_REG(BPF_REG_4, BPF_REG_2), | |
2653 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_4, 4), | |
2654 | BPF_JMP_REG(BPF_JGT, BPF_REG_4, BPF_REG_3, 2), | |
2655 | BPF_MOV64_IMM(BPF_REG_0, 0), | |
2656 | BPF_EXIT_INSN(), | |
2657 | BPF_LD_MAP_FD(BPF_REG_1, 0), | |
5aa5bd14 DB |
2658 | BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, |
2659 | BPF_FUNC_map_lookup_elem), | |
7d95b0ab DB |
2660 | BPF_MOV64_IMM(BPF_REG_0, 0), |
2661 | BPF_EXIT_INSN(), | |
2662 | }, | |
5aa5bd14 | 2663 | .fixup_map1 = { 7 }, |
7d95b0ab DB |
2664 | .result = REJECT, |
2665 | .errstr = "invalid access to packet", | |
2666 | .prog_type = BPF_PROG_TYPE_SCHED_CLS, | |
2667 | }, | |
2668 | { | |
2669 | "helper access to packet: test10, cls packet_ptr with too short range", | |
2670 | .insns = { | |
2671 | BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1, | |
2672 | offsetof(struct __sk_buff, data)), | |
2673 | BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1, | |
2674 | offsetof(struct __sk_buff, data_end)), | |
2675 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, 1), | |
2676 | BPF_MOV64_REG(BPF_REG_4, BPF_REG_2), | |
2677 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_4, 7), | |
2678 | BPF_JMP_REG(BPF_JGT, BPF_REG_4, BPF_REG_3, 3), | |
2679 | BPF_LD_MAP_FD(BPF_REG_1, 0), | |
5aa5bd14 DB |
2680 | BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, |
2681 | BPF_FUNC_map_lookup_elem), | |
7d95b0ab DB |
2682 | BPF_MOV64_IMM(BPF_REG_0, 0), |
2683 | BPF_EXIT_INSN(), | |
2684 | }, | |
5aa5bd14 | 2685 | .fixup_map1 = { 6 }, |
7d95b0ab DB |
2686 | .result = REJECT, |
2687 | .errstr = "invalid access to packet", | |
2688 | .prog_type = BPF_PROG_TYPE_SCHED_CLS, | |
2689 | }, | |
2690 | { | |
2691 | "helper access to packet: test11, cls unsuitable helper 1", | |
2692 | .insns = { | |
2693 | BPF_LDX_MEM(BPF_W, BPF_REG_6, BPF_REG_1, | |
2694 | offsetof(struct __sk_buff, data)), | |
2695 | BPF_LDX_MEM(BPF_W, BPF_REG_7, BPF_REG_1, | |
2696 | offsetof(struct __sk_buff, data_end)), | |
2697 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_6, 1), | |
2698 | BPF_MOV64_REG(BPF_REG_3, BPF_REG_6), | |
2699 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_3, 7), | |
2700 | BPF_JMP_REG(BPF_JGT, BPF_REG_3, BPF_REG_7, 4), | |
2701 | BPF_MOV64_IMM(BPF_REG_2, 0), | |
2702 | BPF_MOV64_IMM(BPF_REG_4, 42), | |
2703 | BPF_MOV64_IMM(BPF_REG_5, 0), | |
5aa5bd14 DB |
2704 | BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, |
2705 | BPF_FUNC_skb_store_bytes), | |
7d95b0ab DB |
2706 | BPF_MOV64_IMM(BPF_REG_0, 0), |
2707 | BPF_EXIT_INSN(), | |
2708 | }, | |
2709 | .result = REJECT, | |
2710 | .errstr = "helper access to the packet", | |
2711 | .prog_type = BPF_PROG_TYPE_SCHED_CLS, | |
2712 | }, | |
2713 | { | |
2714 | "helper access to packet: test12, cls unsuitable helper 2", | |
2715 | .insns = { | |
2716 | BPF_LDX_MEM(BPF_W, BPF_REG_6, BPF_REG_1, | |
2717 | offsetof(struct __sk_buff, data)), | |
2718 | BPF_LDX_MEM(BPF_W, BPF_REG_7, BPF_REG_1, | |
2719 | offsetof(struct __sk_buff, data_end)), | |
2720 | BPF_MOV64_REG(BPF_REG_3, BPF_REG_6), | |
2721 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_6, 8), | |
2722 | BPF_JMP_REG(BPF_JGT, BPF_REG_6, BPF_REG_7, 3), | |
2723 | BPF_MOV64_IMM(BPF_REG_2, 0), | |
2724 | BPF_MOV64_IMM(BPF_REG_4, 4), | |
5aa5bd14 DB |
2725 | BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, |
2726 | BPF_FUNC_skb_load_bytes), | |
7d95b0ab DB |
2727 | BPF_MOV64_IMM(BPF_REG_0, 0), |
2728 | BPF_EXIT_INSN(), | |
2729 | }, | |
2730 | .result = REJECT, | |
2731 | .errstr = "helper access to the packet", | |
2732 | .prog_type = BPF_PROG_TYPE_SCHED_CLS, | |
2733 | }, | |
2734 | { | |
2735 | "helper access to packet: test13, cls helper ok", | |
2736 | .insns = { | |
2737 | BPF_LDX_MEM(BPF_W, BPF_REG_6, BPF_REG_1, | |
2738 | offsetof(struct __sk_buff, data)), | |
2739 | BPF_LDX_MEM(BPF_W, BPF_REG_7, BPF_REG_1, | |
2740 | offsetof(struct __sk_buff, data_end)), | |
2741 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_6, 1), | |
2742 | BPF_MOV64_REG(BPF_REG_1, BPF_REG_6), | |
2743 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, 7), | |
2744 | BPF_JMP_REG(BPF_JGT, BPF_REG_1, BPF_REG_7, 6), | |
2745 | BPF_MOV64_REG(BPF_REG_1, BPF_REG_6), | |
2746 | BPF_MOV64_IMM(BPF_REG_2, 4), | |
2747 | BPF_MOV64_IMM(BPF_REG_3, 0), | |
2748 | BPF_MOV64_IMM(BPF_REG_4, 0), | |
2749 | BPF_MOV64_IMM(BPF_REG_5, 0), | |
5aa5bd14 DB |
2750 | BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, |
2751 | BPF_FUNC_csum_diff), | |
7d95b0ab DB |
2752 | BPF_MOV64_IMM(BPF_REG_0, 0), |
2753 | BPF_EXIT_INSN(), | |
2754 | }, | |
2755 | .result = ACCEPT, | |
2756 | .prog_type = BPF_PROG_TYPE_SCHED_CLS, | |
2757 | }, | |
2758 | { | |
2759 | "helper access to packet: test14, cls helper fail sub", | |
2760 | .insns = { | |
2761 | BPF_LDX_MEM(BPF_W, BPF_REG_6, BPF_REG_1, | |
2762 | offsetof(struct __sk_buff, data)), | |
2763 | BPF_LDX_MEM(BPF_W, BPF_REG_7, BPF_REG_1, | |
2764 | offsetof(struct __sk_buff, data_end)), | |
2765 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_6, 1), | |
2766 | BPF_MOV64_REG(BPF_REG_1, BPF_REG_6), | |
2767 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, 7), | |
2768 | BPF_JMP_REG(BPF_JGT, BPF_REG_1, BPF_REG_7, 6), | |
2769 | BPF_ALU64_IMM(BPF_SUB, BPF_REG_1, 4), | |
2770 | BPF_MOV64_IMM(BPF_REG_2, 4), | |
2771 | BPF_MOV64_IMM(BPF_REG_3, 0), | |
2772 | BPF_MOV64_IMM(BPF_REG_4, 0), | |
2773 | BPF_MOV64_IMM(BPF_REG_5, 0), | |
5aa5bd14 DB |
2774 | BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, |
2775 | BPF_FUNC_csum_diff), | |
7d95b0ab DB |
2776 | BPF_MOV64_IMM(BPF_REG_0, 0), |
2777 | BPF_EXIT_INSN(), | |
2778 | }, | |
2779 | .result = REJECT, | |
2780 | .errstr = "type=inv expected=fp", | |
2781 | .prog_type = BPF_PROG_TYPE_SCHED_CLS, | |
2782 | }, | |
2783 | { | |
2784 | "helper access to packet: test15, cls helper fail range 1", | |
2785 | .insns = { | |
2786 | BPF_LDX_MEM(BPF_W, BPF_REG_6, BPF_REG_1, | |
2787 | offsetof(struct __sk_buff, data)), | |
2788 | BPF_LDX_MEM(BPF_W, BPF_REG_7, BPF_REG_1, | |
2789 | offsetof(struct __sk_buff, data_end)), | |
2790 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_6, 1), | |
2791 | BPF_MOV64_REG(BPF_REG_1, BPF_REG_6), | |
2792 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, 7), | |
2793 | BPF_JMP_REG(BPF_JGT, BPF_REG_1, BPF_REG_7, 6), | |
2794 | BPF_MOV64_REG(BPF_REG_1, BPF_REG_6), | |
2795 | BPF_MOV64_IMM(BPF_REG_2, 8), | |
2796 | BPF_MOV64_IMM(BPF_REG_3, 0), | |
2797 | BPF_MOV64_IMM(BPF_REG_4, 0), | |
2798 | BPF_MOV64_IMM(BPF_REG_5, 0), | |
5aa5bd14 DB |
2799 | BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, |
2800 | BPF_FUNC_csum_diff), | |
7d95b0ab DB |
2801 | BPF_MOV64_IMM(BPF_REG_0, 0), |
2802 | BPF_EXIT_INSN(), | |
2803 | }, | |
2804 | .result = REJECT, | |
2805 | .errstr = "invalid access to packet", | |
2806 | .prog_type = BPF_PROG_TYPE_SCHED_CLS, | |
2807 | }, | |
2808 | { | |
2809 | "helper access to packet: test16, cls helper fail range 2", | |
2810 | .insns = { | |
2811 | BPF_LDX_MEM(BPF_W, BPF_REG_6, BPF_REG_1, | |
2812 | offsetof(struct __sk_buff, data)), | |
2813 | BPF_LDX_MEM(BPF_W, BPF_REG_7, BPF_REG_1, | |
2814 | offsetof(struct __sk_buff, data_end)), | |
2815 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_6, 1), | |
2816 | BPF_MOV64_REG(BPF_REG_1, BPF_REG_6), | |
2817 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, 7), | |
2818 | BPF_JMP_REG(BPF_JGT, BPF_REG_1, BPF_REG_7, 6), | |
2819 | BPF_MOV64_REG(BPF_REG_1, BPF_REG_6), | |
2820 | BPF_MOV64_IMM(BPF_REG_2, -9), | |
2821 | BPF_MOV64_IMM(BPF_REG_3, 0), | |
2822 | BPF_MOV64_IMM(BPF_REG_4, 0), | |
2823 | BPF_MOV64_IMM(BPF_REG_5, 0), | |
5aa5bd14 DB |
2824 | BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, |
2825 | BPF_FUNC_csum_diff), | |
7d95b0ab DB |
2826 | BPF_MOV64_IMM(BPF_REG_0, 0), |
2827 | BPF_EXIT_INSN(), | |
2828 | }, | |
2829 | .result = REJECT, | |
2830 | .errstr = "invalid access to packet", | |
2831 | .prog_type = BPF_PROG_TYPE_SCHED_CLS, | |
2832 | }, | |
2833 | { | |
2834 | "helper access to packet: test17, cls helper fail range 3", | |
2835 | .insns = { | |
2836 | BPF_LDX_MEM(BPF_W, BPF_REG_6, BPF_REG_1, | |
2837 | offsetof(struct __sk_buff, data)), | |
2838 | BPF_LDX_MEM(BPF_W, BPF_REG_7, BPF_REG_1, | |
2839 | offsetof(struct __sk_buff, data_end)), | |
2840 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_6, 1), | |
2841 | BPF_MOV64_REG(BPF_REG_1, BPF_REG_6), | |
2842 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, 7), | |
2843 | BPF_JMP_REG(BPF_JGT, BPF_REG_1, BPF_REG_7, 6), | |
2844 | BPF_MOV64_REG(BPF_REG_1, BPF_REG_6), | |
2845 | BPF_MOV64_IMM(BPF_REG_2, ~0), | |
2846 | BPF_MOV64_IMM(BPF_REG_3, 0), | |
2847 | BPF_MOV64_IMM(BPF_REG_4, 0), | |
2848 | BPF_MOV64_IMM(BPF_REG_5, 0), | |
5aa5bd14 DB |
2849 | BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, |
2850 | BPF_FUNC_csum_diff), | |
7d95b0ab DB |
2851 | BPF_MOV64_IMM(BPF_REG_0, 0), |
2852 | BPF_EXIT_INSN(), | |
2853 | }, | |
2854 | .result = REJECT, | |
2855 | .errstr = "invalid access to packet", | |
2856 | .prog_type = BPF_PROG_TYPE_SCHED_CLS, | |
2857 | }, | |
2858 | { | |
2859 | "helper access to packet: test18, cls helper fail range zero", | |
2860 | .insns = { | |
2861 | BPF_LDX_MEM(BPF_W, BPF_REG_6, BPF_REG_1, | |
2862 | offsetof(struct __sk_buff, data)), | |
2863 | BPF_LDX_MEM(BPF_W, BPF_REG_7, BPF_REG_1, | |
2864 | offsetof(struct __sk_buff, data_end)), | |
2865 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_6, 1), | |
2866 | BPF_MOV64_REG(BPF_REG_1, BPF_REG_6), | |
2867 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, 7), | |
2868 | BPF_JMP_REG(BPF_JGT, BPF_REG_1, BPF_REG_7, 6), | |
2869 | BPF_MOV64_REG(BPF_REG_1, BPF_REG_6), | |
2870 | BPF_MOV64_IMM(BPF_REG_2, 0), | |
2871 | BPF_MOV64_IMM(BPF_REG_3, 0), | |
2872 | BPF_MOV64_IMM(BPF_REG_4, 0), | |
2873 | BPF_MOV64_IMM(BPF_REG_5, 0), | |
5aa5bd14 DB |
2874 | BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, |
2875 | BPF_FUNC_csum_diff), | |
7d95b0ab DB |
2876 | BPF_MOV64_IMM(BPF_REG_0, 0), |
2877 | BPF_EXIT_INSN(), | |
2878 | }, | |
2879 | .result = REJECT, | |
2880 | .errstr = "invalid access to packet", | |
2881 | .prog_type = BPF_PROG_TYPE_SCHED_CLS, | |
2882 | }, | |
2883 | { | |
2884 | "helper access to packet: test19, pkt end as input", | |
2885 | .insns = { | |
2886 | BPF_LDX_MEM(BPF_W, BPF_REG_6, BPF_REG_1, | |
2887 | offsetof(struct __sk_buff, data)), | |
2888 | BPF_LDX_MEM(BPF_W, BPF_REG_7, BPF_REG_1, | |
2889 | offsetof(struct __sk_buff, data_end)), | |
2890 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_6, 1), | |
2891 | BPF_MOV64_REG(BPF_REG_1, BPF_REG_6), | |
2892 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, 7), | |
2893 | BPF_JMP_REG(BPF_JGT, BPF_REG_1, BPF_REG_7, 6), | |
2894 | BPF_MOV64_REG(BPF_REG_1, BPF_REG_7), | |
2895 | BPF_MOV64_IMM(BPF_REG_2, 4), | |
2896 | BPF_MOV64_IMM(BPF_REG_3, 0), | |
2897 | BPF_MOV64_IMM(BPF_REG_4, 0), | |
2898 | BPF_MOV64_IMM(BPF_REG_5, 0), | |
5aa5bd14 DB |
2899 | BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, |
2900 | BPF_FUNC_csum_diff), | |
7d95b0ab DB |
2901 | BPF_MOV64_IMM(BPF_REG_0, 0), |
2902 | BPF_EXIT_INSN(), | |
2903 | }, | |
2904 | .result = REJECT, | |
2905 | .errstr = "R1 type=pkt_end expected=fp", | |
2906 | .prog_type = BPF_PROG_TYPE_SCHED_CLS, | |
2907 | }, | |
2908 | { | |
2909 | "helper access to packet: test20, wrong reg", | |
2910 | .insns = { | |
2911 | BPF_LDX_MEM(BPF_W, BPF_REG_6, BPF_REG_1, | |
2912 | offsetof(struct __sk_buff, data)), | |
2913 | BPF_LDX_MEM(BPF_W, BPF_REG_7, BPF_REG_1, | |
2914 | offsetof(struct __sk_buff, data_end)), | |
2915 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_6, 1), | |
2916 | BPF_MOV64_REG(BPF_REG_1, BPF_REG_6), | |
2917 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, 7), | |
2918 | BPF_JMP_REG(BPF_JGT, BPF_REG_1, BPF_REG_7, 6), | |
2919 | BPF_MOV64_IMM(BPF_REG_2, 4), | |
2920 | BPF_MOV64_IMM(BPF_REG_3, 0), | |
2921 | BPF_MOV64_IMM(BPF_REG_4, 0), | |
2922 | BPF_MOV64_IMM(BPF_REG_5, 0), | |
5aa5bd14 DB |
2923 | BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, |
2924 | BPF_FUNC_csum_diff), | |
7d95b0ab DB |
2925 | BPF_MOV64_IMM(BPF_REG_0, 0), |
2926 | BPF_EXIT_INSN(), | |
2927 | }, | |
2928 | .result = REJECT, | |
2929 | .errstr = "invalid access to packet", | |
2930 | .prog_type = BPF_PROG_TYPE_SCHED_CLS, | |
2931 | }, | |
48461135 JB |
2932 | { |
2933 | "valid map access into an array with a constant", | |
2934 | .insns = { | |
2935 | BPF_ST_MEM(BPF_DW, BPF_REG_10, -8, 0), | |
2936 | BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), | |
2937 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8), | |
2938 | BPF_LD_MAP_FD(BPF_REG_1, 0), | |
5aa5bd14 DB |
2939 | BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, |
2940 | BPF_FUNC_map_lookup_elem), | |
48461135 | 2941 | BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 1), |
5aa5bd14 DB |
2942 | BPF_ST_MEM(BPF_DW, BPF_REG_0, 0, |
2943 | offsetof(struct test_val, foo)), | |
48461135 JB |
2944 | BPF_EXIT_INSN(), |
2945 | }, | |
5aa5bd14 | 2946 | .fixup_map2 = { 3 }, |
48461135 JB |
2947 | .errstr_unpriv = "R0 leaks addr", |
2948 | .result_unpriv = REJECT, | |
2949 | .result = ACCEPT, | |
2950 | }, | |
2951 | { | |
2952 | "valid map access into an array with a register", | |
2953 | .insns = { | |
2954 | BPF_ST_MEM(BPF_DW, BPF_REG_10, -8, 0), | |
2955 | BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), | |
2956 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8), | |
2957 | BPF_LD_MAP_FD(BPF_REG_1, 0), | |
5aa5bd14 DB |
2958 | BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, |
2959 | BPF_FUNC_map_lookup_elem), | |
48461135 JB |
2960 | BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 4), |
2961 | BPF_MOV64_IMM(BPF_REG_1, 4), | |
2962 | BPF_ALU64_IMM(BPF_LSH, BPF_REG_1, 2), | |
2963 | BPF_ALU64_REG(BPF_ADD, BPF_REG_0, BPF_REG_1), | |
5aa5bd14 DB |
2964 | BPF_ST_MEM(BPF_DW, BPF_REG_0, 0, |
2965 | offsetof(struct test_val, foo)), | |
48461135 JB |
2966 | BPF_EXIT_INSN(), |
2967 | }, | |
5aa5bd14 DB |
2968 | .fixup_map2 = { 3 }, |
2969 | .errstr_unpriv = "R0 pointer arithmetic prohibited", | |
48461135 JB |
2970 | .result_unpriv = REJECT, |
2971 | .result = ACCEPT, | |
02ea80b1 | 2972 | .flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS, |
48461135 JB |
2973 | }, |
2974 | { | |
2975 | "valid map access into an array with a variable", | |
2976 | .insns = { | |
2977 | BPF_ST_MEM(BPF_DW, BPF_REG_10, -8, 0), | |
2978 | BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), | |
2979 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8), | |
2980 | BPF_LD_MAP_FD(BPF_REG_1, 0), | |
5aa5bd14 DB |
2981 | BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, |
2982 | BPF_FUNC_map_lookup_elem), | |
48461135 JB |
2983 | BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 5), |
2984 | BPF_LDX_MEM(BPF_W, BPF_REG_1, BPF_REG_0, 0), | |
2985 | BPF_JMP_IMM(BPF_JGE, BPF_REG_1, MAX_ENTRIES, 3), | |
2986 | BPF_ALU64_IMM(BPF_LSH, BPF_REG_1, 2), | |
2987 | BPF_ALU64_REG(BPF_ADD, BPF_REG_0, BPF_REG_1), | |
5aa5bd14 DB |
2988 | BPF_ST_MEM(BPF_DW, BPF_REG_0, 0, |
2989 | offsetof(struct test_val, foo)), | |
48461135 JB |
2990 | BPF_EXIT_INSN(), |
2991 | }, | |
5aa5bd14 DB |
2992 | .fixup_map2 = { 3 }, |
2993 | .errstr_unpriv = "R0 pointer arithmetic prohibited", | |
48461135 JB |
2994 | .result_unpriv = REJECT, |
2995 | .result = ACCEPT, | |
02ea80b1 | 2996 | .flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS, |
48461135 JB |
2997 | }, |
2998 | { | |
2999 | "valid map access into an array with a signed variable", | |
3000 | .insns = { | |
3001 | BPF_ST_MEM(BPF_DW, BPF_REG_10, -8, 0), | |
3002 | BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), | |
3003 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8), | |
3004 | BPF_LD_MAP_FD(BPF_REG_1, 0), | |
5aa5bd14 DB |
3005 | BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, |
3006 | BPF_FUNC_map_lookup_elem), | |
48461135 JB |
3007 | BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 9), |
3008 | BPF_LDX_MEM(BPF_W, BPF_REG_1, BPF_REG_0, 0), | |
3009 | BPF_JMP_IMM(BPF_JSGT, BPF_REG_1, 0xffffffff, 1), | |
3010 | BPF_MOV32_IMM(BPF_REG_1, 0), | |
3011 | BPF_MOV32_IMM(BPF_REG_2, MAX_ENTRIES), | |
3012 | BPF_JMP_REG(BPF_JSGT, BPF_REG_2, BPF_REG_1, 1), | |
3013 | BPF_MOV32_IMM(BPF_REG_1, 0), | |
3014 | BPF_ALU32_IMM(BPF_LSH, BPF_REG_1, 2), | |
3015 | BPF_ALU64_REG(BPF_ADD, BPF_REG_0, BPF_REG_1), | |
5aa5bd14 DB |
3016 | BPF_ST_MEM(BPF_DW, BPF_REG_0, 0, |
3017 | offsetof(struct test_val, foo)), | |
48461135 JB |
3018 | BPF_EXIT_INSN(), |
3019 | }, | |
5aa5bd14 DB |
3020 | .fixup_map2 = { 3 }, |
3021 | .errstr_unpriv = "R0 pointer arithmetic prohibited", | |
48461135 JB |
3022 | .result_unpriv = REJECT, |
3023 | .result = ACCEPT, | |
02ea80b1 | 3024 | .flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS, |
48461135 JB |
3025 | }, |
3026 | { | |
3027 | "invalid map access into an array with a constant", | |
3028 | .insns = { | |
3029 | BPF_ST_MEM(BPF_DW, BPF_REG_10, -8, 0), | |
3030 | BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), | |
3031 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8), | |
3032 | BPF_LD_MAP_FD(BPF_REG_1, 0), | |
5aa5bd14 DB |
3033 | BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, |
3034 | BPF_FUNC_map_lookup_elem), | |
48461135 JB |
3035 | BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 1), |
3036 | BPF_ST_MEM(BPF_DW, BPF_REG_0, (MAX_ENTRIES + 1) << 2, | |
3037 | offsetof(struct test_val, foo)), | |
3038 | BPF_EXIT_INSN(), | |
3039 | }, | |
5aa5bd14 | 3040 | .fixup_map2 = { 3 }, |
48461135 JB |
3041 | .errstr = "invalid access to map value, value_size=48 off=48 size=8", |
3042 | .result = REJECT, | |
3043 | }, | |
3044 | { | |
3045 | "invalid map access into an array with a register", | |
3046 | .insns = { | |
3047 | BPF_ST_MEM(BPF_DW, BPF_REG_10, -8, 0), | |
3048 | BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), | |
3049 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8), | |
3050 | BPF_LD_MAP_FD(BPF_REG_1, 0), | |
5aa5bd14 DB |
3051 | BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, |
3052 | BPF_FUNC_map_lookup_elem), | |
48461135 JB |
3053 | BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 4), |
3054 | BPF_MOV64_IMM(BPF_REG_1, MAX_ENTRIES + 1), | |
3055 | BPF_ALU64_IMM(BPF_LSH, BPF_REG_1, 2), | |
3056 | BPF_ALU64_REG(BPF_ADD, BPF_REG_0, BPF_REG_1), | |
5aa5bd14 DB |
3057 | BPF_ST_MEM(BPF_DW, BPF_REG_0, 0, |
3058 | offsetof(struct test_val, foo)), | |
48461135 JB |
3059 | BPF_EXIT_INSN(), |
3060 | }, | |
5aa5bd14 DB |
3061 | .fixup_map2 = { 3 }, |
3062 | .errstr_unpriv = "R0 pointer arithmetic prohibited", | |
48461135 | 3063 | .errstr = "R0 min value is outside of the array range", |
5aa5bd14 | 3064 | .result_unpriv = REJECT, |
48461135 | 3065 | .result = REJECT, |
02ea80b1 | 3066 | .flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS, |
48461135 JB |
3067 | }, |
3068 | { | |
3069 | "invalid map access into an array with a variable", | |
3070 | .insns = { | |
3071 | BPF_ST_MEM(BPF_DW, BPF_REG_10, -8, 0), | |
3072 | BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), | |
3073 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8), | |
3074 | BPF_LD_MAP_FD(BPF_REG_1, 0), | |
5aa5bd14 DB |
3075 | BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, |
3076 | BPF_FUNC_map_lookup_elem), | |
48461135 JB |
3077 | BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 4), |
3078 | BPF_LDX_MEM(BPF_W, BPF_REG_1, BPF_REG_0, 0), | |
3079 | BPF_ALU64_IMM(BPF_LSH, BPF_REG_1, 2), | |
3080 | BPF_ALU64_REG(BPF_ADD, BPF_REG_0, BPF_REG_1), | |
5aa5bd14 DB |
3081 | BPF_ST_MEM(BPF_DW, BPF_REG_0, 0, |
3082 | offsetof(struct test_val, foo)), | |
48461135 JB |
3083 | BPF_EXIT_INSN(), |
3084 | }, | |
5aa5bd14 DB |
3085 | .fixup_map2 = { 3 }, |
3086 | .errstr_unpriv = "R0 pointer arithmetic prohibited", | |
48461135 | 3087 | .errstr = "R0 min value is negative, either use unsigned index or do a if (index >=0) check.", |
5aa5bd14 | 3088 | .result_unpriv = REJECT, |
48461135 | 3089 | .result = REJECT, |
02ea80b1 | 3090 | .flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS, |
48461135 JB |
3091 | }, |
3092 | { | |
3093 | "invalid map access into an array with no floor check", | |
3094 | .insns = { | |
3095 | BPF_ST_MEM(BPF_DW, BPF_REG_10, -8, 0), | |
3096 | BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), | |
3097 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8), | |
3098 | BPF_LD_MAP_FD(BPF_REG_1, 0), | |
5aa5bd14 DB |
3099 | BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, |
3100 | BPF_FUNC_map_lookup_elem), | |
48461135 JB |
3101 | BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 7), |
3102 | BPF_LDX_MEM(BPF_W, BPF_REG_1, BPF_REG_0, 0), | |
3103 | BPF_MOV32_IMM(BPF_REG_2, MAX_ENTRIES), | |
3104 | BPF_JMP_REG(BPF_JSGT, BPF_REG_2, BPF_REG_1, 1), | |
3105 | BPF_MOV32_IMM(BPF_REG_1, 0), | |
3106 | BPF_ALU32_IMM(BPF_LSH, BPF_REG_1, 2), | |
3107 | BPF_ALU64_REG(BPF_ADD, BPF_REG_0, BPF_REG_1), | |
5aa5bd14 DB |
3108 | BPF_ST_MEM(BPF_DW, BPF_REG_0, 0, |
3109 | offsetof(struct test_val, foo)), | |
48461135 JB |
3110 | BPF_EXIT_INSN(), |
3111 | }, | |
5aa5bd14 DB |
3112 | .fixup_map2 = { 3 }, |
3113 | .errstr_unpriv = "R0 pointer arithmetic prohibited", | |
48461135 | 3114 | .errstr = "R0 min value is negative, either use unsigned index or do a if (index >=0) check.", |
5aa5bd14 | 3115 | .result_unpriv = REJECT, |
48461135 | 3116 | .result = REJECT, |
02ea80b1 | 3117 | .flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS, |
48461135 JB |
3118 | }, |
3119 | { | |
3120 | "invalid map access into an array with a invalid max check", | |
3121 | .insns = { | |
3122 | BPF_ST_MEM(BPF_DW, BPF_REG_10, -8, 0), | |
3123 | BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), | |
3124 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8), | |
3125 | BPF_LD_MAP_FD(BPF_REG_1, 0), | |
5aa5bd14 DB |
3126 | BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, |
3127 | BPF_FUNC_map_lookup_elem), | |
48461135 JB |
3128 | BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 7), |
3129 | BPF_LDX_MEM(BPF_W, BPF_REG_1, BPF_REG_0, 0), | |
3130 | BPF_MOV32_IMM(BPF_REG_2, MAX_ENTRIES + 1), | |
3131 | BPF_JMP_REG(BPF_JGT, BPF_REG_2, BPF_REG_1, 1), | |
3132 | BPF_MOV32_IMM(BPF_REG_1, 0), | |
3133 | BPF_ALU32_IMM(BPF_LSH, BPF_REG_1, 2), | |
3134 | BPF_ALU64_REG(BPF_ADD, BPF_REG_0, BPF_REG_1), | |
5aa5bd14 DB |
3135 | BPF_ST_MEM(BPF_DW, BPF_REG_0, 0, |
3136 | offsetof(struct test_val, foo)), | |
48461135 JB |
3137 | BPF_EXIT_INSN(), |
3138 | }, | |
5aa5bd14 DB |
3139 | .fixup_map2 = { 3 }, |
3140 | .errstr_unpriv = "R0 pointer arithmetic prohibited", | |
48461135 | 3141 | .errstr = "invalid access to map value, value_size=48 off=44 size=8", |
5aa5bd14 | 3142 | .result_unpriv = REJECT, |
48461135 | 3143 | .result = REJECT, |
02ea80b1 | 3144 | .flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS, |
48461135 JB |
3145 | }, |
3146 | { | |
3147 | "invalid map access into an array with a invalid max check", | |
3148 | .insns = { | |
3149 | BPF_ST_MEM(BPF_DW, BPF_REG_10, -8, 0), | |
3150 | BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), | |
3151 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8), | |
3152 | BPF_LD_MAP_FD(BPF_REG_1, 0), | |
5aa5bd14 DB |
3153 | BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, |
3154 | BPF_FUNC_map_lookup_elem), | |
48461135 JB |
3155 | BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 10), |
3156 | BPF_MOV64_REG(BPF_REG_8, BPF_REG_0), | |
3157 | BPF_ST_MEM(BPF_DW, BPF_REG_10, -8, 0), | |
3158 | BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), | |
3159 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8), | |
3160 | BPF_LD_MAP_FD(BPF_REG_1, 0), | |
5aa5bd14 DB |
3161 | BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, |
3162 | BPF_FUNC_map_lookup_elem), | |
48461135 JB |
3163 | BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 2), |
3164 | BPF_ALU64_REG(BPF_ADD, BPF_REG_0, BPF_REG_8), | |
5aa5bd14 DB |
3165 | BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_0, |
3166 | offsetof(struct test_val, foo)), | |
48461135 JB |
3167 | BPF_EXIT_INSN(), |
3168 | }, | |
5aa5bd14 DB |
3169 | .fixup_map2 = { 3, 11 }, |
3170 | .errstr_unpriv = "R0 pointer arithmetic prohibited", | |
48461135 | 3171 | .errstr = "R0 min value is negative, either use unsigned index or do a if (index >=0) check.", |
5aa5bd14 | 3172 | .result_unpriv = REJECT, |
48461135 | 3173 | .result = REJECT, |
02ea80b1 | 3174 | .flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS, |
48461135 | 3175 | }, |
57a09bf0 TG |
3176 | { |
3177 | "multiple registers share map_lookup_elem result", | |
3178 | .insns = { | |
3179 | BPF_MOV64_IMM(BPF_REG_1, 10), | |
3180 | BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_1, -8), | |
3181 | BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), | |
3182 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8), | |
3183 | BPF_LD_MAP_FD(BPF_REG_1, 0), | |
3184 | BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, | |
3185 | BPF_FUNC_map_lookup_elem), | |
3186 | BPF_MOV64_REG(BPF_REG_4, BPF_REG_0), | |
3187 | BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 1), | |
3188 | BPF_ST_MEM(BPF_DW, BPF_REG_4, 0, 0), | |
3189 | BPF_EXIT_INSN(), | |
3190 | }, | |
3191 | .fixup_map1 = { 4 }, | |
3192 | .result = ACCEPT, | |
3193 | .prog_type = BPF_PROG_TYPE_SCHED_CLS | |
3194 | }, | |
3195 | { | |
3196 | "invalid memory access with multiple map_lookup_elem calls", | |
3197 | .insns = { | |
3198 | BPF_MOV64_IMM(BPF_REG_1, 10), | |
3199 | BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_1, -8), | |
3200 | BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), | |
3201 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8), | |
3202 | BPF_LD_MAP_FD(BPF_REG_1, 0), | |
3203 | BPF_MOV64_REG(BPF_REG_8, BPF_REG_1), | |
3204 | BPF_MOV64_REG(BPF_REG_7, BPF_REG_2), | |
3205 | BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, | |
3206 | BPF_FUNC_map_lookup_elem), | |
3207 | BPF_MOV64_REG(BPF_REG_4, BPF_REG_0), | |
3208 | BPF_MOV64_REG(BPF_REG_1, BPF_REG_8), | |
3209 | BPF_MOV64_REG(BPF_REG_2, BPF_REG_7), | |
3210 | BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, | |
3211 | BPF_FUNC_map_lookup_elem), | |
3212 | BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 1), | |
3213 | BPF_ST_MEM(BPF_DW, BPF_REG_4, 0, 0), | |
3214 | BPF_EXIT_INSN(), | |
3215 | }, | |
3216 | .fixup_map1 = { 4 }, | |
3217 | .result = REJECT, | |
3218 | .errstr = "R4 !read_ok", | |
3219 | .prog_type = BPF_PROG_TYPE_SCHED_CLS | |
3220 | }, | |
3221 | { | |
3222 | "valid indirect map_lookup_elem access with 2nd lookup in branch", | |
3223 | .insns = { | |
3224 | BPF_MOV64_IMM(BPF_REG_1, 10), | |
3225 | BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_1, -8), | |
3226 | BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), | |
3227 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8), | |
3228 | BPF_LD_MAP_FD(BPF_REG_1, 0), | |
3229 | BPF_MOV64_REG(BPF_REG_8, BPF_REG_1), | |
3230 | BPF_MOV64_REG(BPF_REG_7, BPF_REG_2), | |
3231 | BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, | |
3232 | BPF_FUNC_map_lookup_elem), | |
3233 | BPF_MOV64_IMM(BPF_REG_2, 10), | |
3234 | BPF_JMP_IMM(BPF_JNE, BPF_REG_2, 0, 3), | |
3235 | BPF_MOV64_REG(BPF_REG_1, BPF_REG_8), | |
3236 | BPF_MOV64_REG(BPF_REG_2, BPF_REG_7), | |
3237 | BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, | |
3238 | BPF_FUNC_map_lookup_elem), | |
3239 | BPF_MOV64_REG(BPF_REG_4, BPF_REG_0), | |
3240 | BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 1), | |
3241 | BPF_ST_MEM(BPF_DW, BPF_REG_4, 0, 0), | |
3242 | BPF_EXIT_INSN(), | |
3243 | }, | |
3244 | .fixup_map1 = { 4 }, | |
3245 | .result = ACCEPT, | |
3246 | .prog_type = BPF_PROG_TYPE_SCHED_CLS | |
3247 | }, | |
a08dd0da DB |
3248 | { |
3249 | "multiple registers share map_lookup_elem bad reg type", | |
3250 | .insns = { | |
3251 | BPF_MOV64_IMM(BPF_REG_1, 10), | |
3252 | BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_1, -8), | |
3253 | BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), | |
3254 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8), | |
3255 | BPF_LD_MAP_FD(BPF_REG_1, 0), | |
3256 | BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, | |
3257 | BPF_FUNC_map_lookup_elem), | |
3258 | BPF_MOV64_REG(BPF_REG_2, BPF_REG_0), | |
3259 | BPF_MOV64_REG(BPF_REG_3, BPF_REG_0), | |
3260 | BPF_MOV64_REG(BPF_REG_4, BPF_REG_0), | |
3261 | BPF_MOV64_REG(BPF_REG_5, BPF_REG_0), | |
3262 | BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 1), | |
3263 | BPF_MOV64_IMM(BPF_REG_1, 1), | |
3264 | BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 1), | |
3265 | BPF_MOV64_IMM(BPF_REG_1, 2), | |
3266 | BPF_JMP_IMM(BPF_JEQ, BPF_REG_3, 0, 1), | |
3267 | BPF_ST_MEM(BPF_DW, BPF_REG_3, 0, 0), | |
3268 | BPF_MOV64_IMM(BPF_REG_1, 3), | |
3269 | BPF_EXIT_INSN(), | |
3270 | }, | |
3271 | .fixup_map1 = { 4 }, | |
3272 | .result = REJECT, | |
3273 | .errstr = "R3 invalid mem access 'inv'", | |
3274 | .prog_type = BPF_PROG_TYPE_SCHED_CLS | |
3275 | }, | |
e9548901 JB |
3276 | { |
3277 | "invalid map access from else condition", | |
3278 | .insns = { | |
3279 | BPF_ST_MEM(BPF_DW, BPF_REG_10, -8, 0), | |
3280 | BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), | |
3281 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8), | |
3282 | BPF_LD_MAP_FD(BPF_REG_1, 0), | |
3283 | BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, BPF_FUNC_map_lookup_elem), | |
3284 | BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 6), | |
3285 | BPF_LDX_MEM(BPF_W, BPF_REG_1, BPF_REG_0, 0), | |
3286 | BPF_JMP_IMM(BPF_JGE, BPF_REG_1, MAX_ENTRIES-1, 1), | |
3287 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, 1), | |
3288 | BPF_ALU64_IMM(BPF_LSH, BPF_REG_1, 2), | |
3289 | BPF_ALU64_REG(BPF_ADD, BPF_REG_0, BPF_REG_1), | |
3290 | BPF_ST_MEM(BPF_DW, BPF_REG_0, 0, offsetof(struct test_val, foo)), | |
3291 | BPF_EXIT_INSN(), | |
3292 | }, | |
3293 | .fixup_map2 = { 3 }, | |
3294 | .errstr = "R0 unbounded memory access, make sure to bounds check any array access into a map", | |
3295 | .result = REJECT, | |
3296 | .errstr_unpriv = "R0 pointer arithmetic prohibited", | |
3297 | .result_unpriv = REJECT, | |
02ea80b1 | 3298 | .flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS, |
e9548901 | 3299 | }, |
3c839744 GB |
3300 | { |
3301 | "constant register |= constant should keep constant type", | |
3302 | .insns = { | |
3303 | BPF_MOV64_REG(BPF_REG_1, BPF_REG_10), | |
3304 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, -48), | |
3305 | BPF_MOV64_IMM(BPF_REG_2, 34), | |
3306 | BPF_ALU64_IMM(BPF_OR, BPF_REG_2, 13), | |
3307 | BPF_MOV64_IMM(BPF_REG_3, 0), | |
3308 | BPF_EMIT_CALL(BPF_FUNC_probe_read), | |
3309 | BPF_EXIT_INSN(), | |
3310 | }, | |
3311 | .result = ACCEPT, | |
3312 | .prog_type = BPF_PROG_TYPE_TRACEPOINT, | |
3313 | }, | |
3314 | { | |
3315 | "constant register |= constant should not bypass stack boundary checks", | |
3316 | .insns = { | |
3317 | BPF_MOV64_REG(BPF_REG_1, BPF_REG_10), | |
3318 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, -48), | |
3319 | BPF_MOV64_IMM(BPF_REG_2, 34), | |
3320 | BPF_ALU64_IMM(BPF_OR, BPF_REG_2, 24), | |
3321 | BPF_MOV64_IMM(BPF_REG_3, 0), | |
3322 | BPF_EMIT_CALL(BPF_FUNC_probe_read), | |
3323 | BPF_EXIT_INSN(), | |
3324 | }, | |
3325 | .errstr = "invalid stack type R1 off=-48 access_size=58", | |
3326 | .result = REJECT, | |
3327 | .prog_type = BPF_PROG_TYPE_TRACEPOINT, | |
3328 | }, | |
3329 | { | |
3330 | "constant register |= constant register should keep constant type", | |
3331 | .insns = { | |
3332 | BPF_MOV64_REG(BPF_REG_1, BPF_REG_10), | |
3333 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, -48), | |
3334 | BPF_MOV64_IMM(BPF_REG_2, 34), | |
3335 | BPF_MOV64_IMM(BPF_REG_4, 13), | |
3336 | BPF_ALU64_REG(BPF_OR, BPF_REG_2, BPF_REG_4), | |
3337 | BPF_MOV64_IMM(BPF_REG_3, 0), | |
3338 | BPF_EMIT_CALL(BPF_FUNC_probe_read), | |
3339 | BPF_EXIT_INSN(), | |
3340 | }, | |
3341 | .result = ACCEPT, | |
3342 | .prog_type = BPF_PROG_TYPE_TRACEPOINT, | |
3343 | }, | |
3344 | { | |
3345 | "constant register |= constant register should not bypass stack boundary checks", | |
3346 | .insns = { | |
3347 | BPF_MOV64_REG(BPF_REG_1, BPF_REG_10), | |
3348 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, -48), | |
3349 | BPF_MOV64_IMM(BPF_REG_2, 34), | |
3350 | BPF_MOV64_IMM(BPF_REG_4, 24), | |
3351 | BPF_ALU64_REG(BPF_OR, BPF_REG_2, BPF_REG_4), | |
3352 | BPF_MOV64_IMM(BPF_REG_3, 0), | |
3353 | BPF_EMIT_CALL(BPF_FUNC_probe_read), | |
3354 | BPF_EXIT_INSN(), | |
3355 | }, | |
3356 | .errstr = "invalid stack type R1 off=-48 access_size=58", | |
3357 | .result = REJECT, | |
3358 | .prog_type = BPF_PROG_TYPE_TRACEPOINT, | |
3359 | }, | |
3f731d89 TG |
3360 | { |
3361 | "invalid direct packet write for LWT_IN", | |
3362 | .insns = { | |
3363 | BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1, | |
3364 | offsetof(struct __sk_buff, data)), | |
3365 | BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1, | |
3366 | offsetof(struct __sk_buff, data_end)), | |
3367 | BPF_MOV64_REG(BPF_REG_0, BPF_REG_2), | |
3368 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_0, 8), | |
3369 | BPF_JMP_REG(BPF_JGT, BPF_REG_0, BPF_REG_3, 1), | |
3370 | BPF_STX_MEM(BPF_B, BPF_REG_2, BPF_REG_2, 0), | |
3371 | BPF_MOV64_IMM(BPF_REG_0, 0), | |
3372 | BPF_EXIT_INSN(), | |
3373 | }, | |
3374 | .errstr = "cannot write into packet", | |
3375 | .result = REJECT, | |
3376 | .prog_type = BPF_PROG_TYPE_LWT_IN, | |
3377 | }, | |
3378 | { | |
3379 | "invalid direct packet write for LWT_OUT", | |
3380 | .insns = { | |
3381 | BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1, | |
3382 | offsetof(struct __sk_buff, data)), | |
3383 | BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1, | |
3384 | offsetof(struct __sk_buff, data_end)), | |
3385 | BPF_MOV64_REG(BPF_REG_0, BPF_REG_2), | |
3386 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_0, 8), | |
3387 | BPF_JMP_REG(BPF_JGT, BPF_REG_0, BPF_REG_3, 1), | |
3388 | BPF_STX_MEM(BPF_B, BPF_REG_2, BPF_REG_2, 0), | |
3389 | BPF_MOV64_IMM(BPF_REG_0, 0), | |
3390 | BPF_EXIT_INSN(), | |
3391 | }, | |
3392 | .errstr = "cannot write into packet", | |
3393 | .result = REJECT, | |
3394 | .prog_type = BPF_PROG_TYPE_LWT_OUT, | |
3395 | }, | |
3396 | { | |
3397 | "direct packet write for LWT_XMIT", | |
3398 | .insns = { | |
3399 | BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1, | |
3400 | offsetof(struct __sk_buff, data)), | |
3401 | BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1, | |
3402 | offsetof(struct __sk_buff, data_end)), | |
3403 | BPF_MOV64_REG(BPF_REG_0, BPF_REG_2), | |
3404 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_0, 8), | |
3405 | BPF_JMP_REG(BPF_JGT, BPF_REG_0, BPF_REG_3, 1), | |
3406 | BPF_STX_MEM(BPF_B, BPF_REG_2, BPF_REG_2, 0), | |
3407 | BPF_MOV64_IMM(BPF_REG_0, 0), | |
3408 | BPF_EXIT_INSN(), | |
3409 | }, | |
3410 | .result = ACCEPT, | |
3411 | .prog_type = BPF_PROG_TYPE_LWT_XMIT, | |
3412 | }, | |
3413 | { | |
3414 | "direct packet read for LWT_IN", | |
3415 | .insns = { | |
3416 | BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1, | |
3417 | offsetof(struct __sk_buff, data)), | |
3418 | BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1, | |
3419 | offsetof(struct __sk_buff, data_end)), | |
3420 | BPF_MOV64_REG(BPF_REG_0, BPF_REG_2), | |
3421 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_0, 8), | |
3422 | BPF_JMP_REG(BPF_JGT, BPF_REG_0, BPF_REG_3, 1), | |
3423 | BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_2, 0), | |
3424 | BPF_MOV64_IMM(BPF_REG_0, 0), | |
3425 | BPF_EXIT_INSN(), | |
3426 | }, | |
3427 | .result = ACCEPT, | |
3428 | .prog_type = BPF_PROG_TYPE_LWT_IN, | |
3429 | }, | |
3430 | { | |
3431 | "direct packet read for LWT_OUT", | |
3432 | .insns = { | |
3433 | BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1, | |
3434 | offsetof(struct __sk_buff, data)), | |
3435 | BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1, | |
3436 | offsetof(struct __sk_buff, data_end)), | |
3437 | BPF_MOV64_REG(BPF_REG_0, BPF_REG_2), | |
3438 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_0, 8), | |
3439 | BPF_JMP_REG(BPF_JGT, BPF_REG_0, BPF_REG_3, 1), | |
3440 | BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_2, 0), | |
3441 | BPF_MOV64_IMM(BPF_REG_0, 0), | |
3442 | BPF_EXIT_INSN(), | |
3443 | }, | |
3444 | .result = ACCEPT, | |
3445 | .prog_type = BPF_PROG_TYPE_LWT_OUT, | |
3446 | }, | |
3447 | { | |
3448 | "direct packet read for LWT_XMIT", | |
3449 | .insns = { | |
3450 | BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1, | |
3451 | offsetof(struct __sk_buff, data)), | |
3452 | BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1, | |
3453 | offsetof(struct __sk_buff, data_end)), | |
3454 | BPF_MOV64_REG(BPF_REG_0, BPF_REG_2), | |
3455 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_0, 8), | |
3456 | BPF_JMP_REG(BPF_JGT, BPF_REG_0, BPF_REG_3, 1), | |
3457 | BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_2, 0), | |
3458 | BPF_MOV64_IMM(BPF_REG_0, 0), | |
3459 | BPF_EXIT_INSN(), | |
b1977682 AS |
3460 | }, |
3461 | .result = ACCEPT, | |
3462 | .prog_type = BPF_PROG_TYPE_LWT_XMIT, | |
3463 | }, | |
3464 | { | |
3465 | "overlapping checks for direct packet access", | |
3466 | .insns = { | |
3467 | BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1, | |
3468 | offsetof(struct __sk_buff, data)), | |
3469 | BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1, | |
3470 | offsetof(struct __sk_buff, data_end)), | |
3471 | BPF_MOV64_REG(BPF_REG_0, BPF_REG_2), | |
3472 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_0, 8), | |
3473 | BPF_JMP_REG(BPF_JGT, BPF_REG_0, BPF_REG_3, 4), | |
3474 | BPF_MOV64_REG(BPF_REG_1, BPF_REG_2), | |
3475 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, 6), | |
3476 | BPF_JMP_REG(BPF_JGT, BPF_REG_1, BPF_REG_3, 1), | |
3477 | BPF_LDX_MEM(BPF_H, BPF_REG_0, BPF_REG_2, 6), | |
3478 | BPF_MOV64_IMM(BPF_REG_0, 0), | |
3479 | BPF_EXIT_INSN(), | |
3f731d89 TG |
3480 | }, |
3481 | .result = ACCEPT, | |
3482 | .prog_type = BPF_PROG_TYPE_LWT_XMIT, | |
3483 | }, | |
3484 | { | |
3485 | "invalid access of tc_classid for LWT_IN", | |
3486 | .insns = { | |
3487 | BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1, | |
3488 | offsetof(struct __sk_buff, tc_classid)), | |
3489 | BPF_EXIT_INSN(), | |
3490 | }, | |
3491 | .result = REJECT, | |
3492 | .errstr = "invalid bpf_context access", | |
3493 | }, | |
3494 | { | |
3495 | "invalid access of tc_classid for LWT_OUT", | |
3496 | .insns = { | |
3497 | BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1, | |
3498 | offsetof(struct __sk_buff, tc_classid)), | |
3499 | BPF_EXIT_INSN(), | |
3500 | }, | |
3501 | .result = REJECT, | |
3502 | .errstr = "invalid bpf_context access", | |
3503 | }, | |
3504 | { | |
3505 | "invalid access of tc_classid for LWT_XMIT", | |
3506 | .insns = { | |
3507 | BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1, | |
3508 | offsetof(struct __sk_buff, tc_classid)), | |
3509 | BPF_EXIT_INSN(), | |
3510 | }, | |
3511 | .result = REJECT, | |
3512 | .errstr = "invalid bpf_context access", | |
3513 | }, | |
5722569b GB |
3514 | { |
3515 | "helper access to map: full range", | |
3516 | .insns = { | |
3517 | BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), | |
3518 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8), | |
3519 | BPF_ST_MEM(BPF_DW, BPF_REG_2, 0, 0), | |
3520 | BPF_LD_MAP_FD(BPF_REG_1, 0), | |
3521 | BPF_EMIT_CALL(BPF_FUNC_map_lookup_elem), | |
3522 | BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 4), | |
3523 | BPF_MOV64_REG(BPF_REG_1, BPF_REG_0), | |
3524 | BPF_MOV64_IMM(BPF_REG_2, sizeof(struct test_val)), | |
3525 | BPF_MOV64_IMM(BPF_REG_3, 0), | |
3526 | BPF_EMIT_CALL(BPF_FUNC_probe_read), | |
3527 | BPF_EXIT_INSN(), | |
3528 | }, | |
3529 | .fixup_map2 = { 3 }, | |
3530 | .result = ACCEPT, | |
3531 | .prog_type = BPF_PROG_TYPE_TRACEPOINT, | |
3532 | }, | |
3533 | { | |
3534 | "helper access to map: partial range", | |
3535 | .insns = { | |
3536 | BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), | |
3537 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8), | |
3538 | BPF_ST_MEM(BPF_DW, BPF_REG_2, 0, 0), | |
3539 | BPF_LD_MAP_FD(BPF_REG_1, 0), | |
3540 | BPF_EMIT_CALL(BPF_FUNC_map_lookup_elem), | |
3541 | BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 4), | |
3542 | BPF_MOV64_REG(BPF_REG_1, BPF_REG_0), | |
3543 | BPF_MOV64_IMM(BPF_REG_2, 8), | |
3544 | BPF_MOV64_IMM(BPF_REG_3, 0), | |
3545 | BPF_EMIT_CALL(BPF_FUNC_probe_read), | |
3546 | BPF_EXIT_INSN(), | |
3547 | }, | |
3548 | .fixup_map2 = { 3 }, | |
3549 | .result = ACCEPT, | |
3550 | .prog_type = BPF_PROG_TYPE_TRACEPOINT, | |
3551 | }, | |
3552 | { | |
3553 | "helper access to map: empty range", | |
3554 | .insns = { | |
3555 | BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), | |
3556 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8), | |
3557 | BPF_ST_MEM(BPF_DW, BPF_REG_2, 0, 0), | |
3558 | BPF_LD_MAP_FD(BPF_REG_1, 0), | |
3559 | BPF_EMIT_CALL(BPF_FUNC_map_lookup_elem), | |
3560 | BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 4), | |
3561 | BPF_MOV64_REG(BPF_REG_1, BPF_REG_0), | |
3562 | BPF_MOV64_IMM(BPF_REG_2, 0), | |
3563 | BPF_MOV64_IMM(BPF_REG_3, 0), | |
3564 | BPF_EMIT_CALL(BPF_FUNC_probe_read), | |
3565 | BPF_EXIT_INSN(), | |
3566 | }, | |
3567 | .fixup_map2 = { 3 }, | |
3568 | .errstr = "invalid access to map value, value_size=48 off=0 size=0", | |
3569 | .result = REJECT, | |
3570 | .prog_type = BPF_PROG_TYPE_TRACEPOINT, | |
3571 | }, | |
3572 | { | |
3573 | "helper access to map: out-of-bound range", | |
3574 | .insns = { | |
3575 | BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), | |
3576 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8), | |
3577 | BPF_ST_MEM(BPF_DW, BPF_REG_2, 0, 0), | |
3578 | BPF_LD_MAP_FD(BPF_REG_1, 0), | |
3579 | BPF_EMIT_CALL(BPF_FUNC_map_lookup_elem), | |
3580 | BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 4), | |
3581 | BPF_MOV64_REG(BPF_REG_1, BPF_REG_0), | |
3582 | BPF_MOV64_IMM(BPF_REG_2, sizeof(struct test_val) + 8), | |
3583 | BPF_MOV64_IMM(BPF_REG_3, 0), | |
3584 | BPF_EMIT_CALL(BPF_FUNC_probe_read), | |
3585 | BPF_EXIT_INSN(), | |
3586 | }, | |
3587 | .fixup_map2 = { 3 }, | |
3588 | .errstr = "invalid access to map value, value_size=48 off=0 size=56", | |
3589 | .result = REJECT, | |
3590 | .prog_type = BPF_PROG_TYPE_TRACEPOINT, | |
3591 | }, | |
3592 | { | |
3593 | "helper access to map: negative range", | |
3594 | .insns = { | |
3595 | BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), | |
3596 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8), | |
3597 | BPF_ST_MEM(BPF_DW, BPF_REG_2, 0, 0), | |
3598 | BPF_LD_MAP_FD(BPF_REG_1, 0), | |
3599 | BPF_EMIT_CALL(BPF_FUNC_map_lookup_elem), | |
3600 | BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 4), | |
3601 | BPF_MOV64_REG(BPF_REG_1, BPF_REG_0), | |
3602 | BPF_MOV64_IMM(BPF_REG_2, -8), | |
3603 | BPF_MOV64_IMM(BPF_REG_3, 0), | |
3604 | BPF_EMIT_CALL(BPF_FUNC_probe_read), | |
3605 | BPF_EXIT_INSN(), | |
3606 | }, | |
3607 | .fixup_map2 = { 3 }, | |
3608 | .errstr = "invalid access to map value, value_size=48 off=0 size=-8", | |
3609 | .result = REJECT, | |
3610 | .prog_type = BPF_PROG_TYPE_TRACEPOINT, | |
3611 | }, | |
3612 | { | |
3613 | "helper access to adjusted map (via const imm): full range", | |
3614 | .insns = { | |
3615 | BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), | |
3616 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8), | |
3617 | BPF_ST_MEM(BPF_DW, BPF_REG_2, 0, 0), | |
3618 | BPF_LD_MAP_FD(BPF_REG_1, 0), | |
3619 | BPF_EMIT_CALL(BPF_FUNC_map_lookup_elem), | |
3620 | BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 5), | |
3621 | BPF_MOV64_REG(BPF_REG_1, BPF_REG_0), | |
3622 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, | |
3623 | offsetof(struct test_val, foo)), | |
3624 | BPF_MOV64_IMM(BPF_REG_2, | |
3625 | sizeof(struct test_val) - | |
3626 | offsetof(struct test_val, foo)), | |
3627 | BPF_MOV64_IMM(BPF_REG_3, 0), | |
3628 | BPF_EMIT_CALL(BPF_FUNC_probe_read), | |
3629 | BPF_EXIT_INSN(), | |
3630 | }, | |
3631 | .fixup_map2 = { 3 }, | |
3632 | .result = ACCEPT, | |
3633 | .prog_type = BPF_PROG_TYPE_TRACEPOINT, | |
3634 | }, | |
3635 | { | |
3636 | "helper access to adjusted map (via const imm): partial range", | |
3637 | .insns = { | |
3638 | BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), | |
3639 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8), | |
3640 | BPF_ST_MEM(BPF_DW, BPF_REG_2, 0, 0), | |
3641 | BPF_LD_MAP_FD(BPF_REG_1, 0), | |
3642 | BPF_EMIT_CALL(BPF_FUNC_map_lookup_elem), | |
3643 | BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 5), | |
3644 | BPF_MOV64_REG(BPF_REG_1, BPF_REG_0), | |
3645 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, | |
3646 | offsetof(struct test_val, foo)), | |
3647 | BPF_MOV64_IMM(BPF_REG_2, 8), | |
3648 | BPF_MOV64_IMM(BPF_REG_3, 0), | |
3649 | BPF_EMIT_CALL(BPF_FUNC_probe_read), | |
3650 | BPF_EXIT_INSN(), | |
3651 | }, | |
3652 | .fixup_map2 = { 3 }, | |
3653 | .result = ACCEPT, | |
3654 | .prog_type = BPF_PROG_TYPE_TRACEPOINT, | |
3655 | }, | |
3656 | { | |
3657 | "helper access to adjusted map (via const imm): empty range", | |
3658 | .insns = { | |
3659 | BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), | |
3660 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8), | |
3661 | BPF_ST_MEM(BPF_DW, BPF_REG_2, 0, 0), | |
3662 | BPF_LD_MAP_FD(BPF_REG_1, 0), | |
3663 | BPF_EMIT_CALL(BPF_FUNC_map_lookup_elem), | |
3664 | BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 5), | |
3665 | BPF_MOV64_REG(BPF_REG_1, BPF_REG_0), | |
3666 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, | |
3667 | offsetof(struct test_val, foo)), | |
3668 | BPF_MOV64_IMM(BPF_REG_2, 0), | |
3669 | BPF_MOV64_IMM(BPF_REG_3, 0), | |
3670 | BPF_EMIT_CALL(BPF_FUNC_probe_read), | |
3671 | BPF_EXIT_INSN(), | |
3672 | }, | |
3673 | .fixup_map2 = { 3 }, | |
3674 | .errstr = "R1 min value is outside of the array range", | |
3675 | .result = REJECT, | |
3676 | .prog_type = BPF_PROG_TYPE_TRACEPOINT, | |
3677 | }, | |
3678 | { | |
3679 | "helper access to adjusted map (via const imm): out-of-bound range", | |
3680 | .insns = { | |
3681 | BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), | |
3682 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8), | |
3683 | BPF_ST_MEM(BPF_DW, BPF_REG_2, 0, 0), | |
3684 | BPF_LD_MAP_FD(BPF_REG_1, 0), | |
3685 | BPF_EMIT_CALL(BPF_FUNC_map_lookup_elem), | |
3686 | BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 5), | |
3687 | BPF_MOV64_REG(BPF_REG_1, BPF_REG_0), | |
3688 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, | |
3689 | offsetof(struct test_val, foo)), | |
3690 | BPF_MOV64_IMM(BPF_REG_2, | |
3691 | sizeof(struct test_val) - | |
3692 | offsetof(struct test_val, foo) + 8), | |
3693 | BPF_MOV64_IMM(BPF_REG_3, 0), | |
3694 | BPF_EMIT_CALL(BPF_FUNC_probe_read), | |
3695 | BPF_EXIT_INSN(), | |
3696 | }, | |
3697 | .fixup_map2 = { 3 }, | |
3698 | .errstr = "invalid access to map value, value_size=48 off=4 size=52", | |
3699 | .result = REJECT, | |
3700 | .prog_type = BPF_PROG_TYPE_TRACEPOINT, | |
3701 | }, | |
3702 | { | |
3703 | "helper access to adjusted map (via const imm): negative range (> adjustment)", | |
3704 | .insns = { | |
3705 | BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), | |
3706 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8), | |
3707 | BPF_ST_MEM(BPF_DW, BPF_REG_2, 0, 0), | |
3708 | BPF_LD_MAP_FD(BPF_REG_1, 0), | |
3709 | BPF_EMIT_CALL(BPF_FUNC_map_lookup_elem), | |
3710 | BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 5), | |
3711 | BPF_MOV64_REG(BPF_REG_1, BPF_REG_0), | |
3712 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, | |
3713 | offsetof(struct test_val, foo)), | |
3714 | BPF_MOV64_IMM(BPF_REG_2, -8), | |
3715 | BPF_MOV64_IMM(BPF_REG_3, 0), | |
3716 | BPF_EMIT_CALL(BPF_FUNC_probe_read), | |
3717 | BPF_EXIT_INSN(), | |
3718 | }, | |
3719 | .fixup_map2 = { 3 }, | |
3720 | .errstr = "invalid access to map value, value_size=48 off=4 size=-8", | |
3721 | .result = REJECT, | |
3722 | .prog_type = BPF_PROG_TYPE_TRACEPOINT, | |
3723 | }, | |
3724 | { | |
3725 | "helper access to adjusted map (via const imm): negative range (< adjustment)", | |
3726 | .insns = { | |
3727 | BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), | |
3728 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8), | |
3729 | BPF_ST_MEM(BPF_DW, BPF_REG_2, 0, 0), | |
3730 | BPF_LD_MAP_FD(BPF_REG_1, 0), | |
3731 | BPF_EMIT_CALL(BPF_FUNC_map_lookup_elem), | |
3732 | BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 5), | |
3733 | BPF_MOV64_REG(BPF_REG_1, BPF_REG_0), | |
3734 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, | |
3735 | offsetof(struct test_val, foo)), | |
3736 | BPF_MOV64_IMM(BPF_REG_2, -1), | |
3737 | BPF_MOV64_IMM(BPF_REG_3, 0), | |
3738 | BPF_EMIT_CALL(BPF_FUNC_probe_read), | |
3739 | BPF_EXIT_INSN(), | |
3740 | }, | |
3741 | .fixup_map2 = { 3 }, | |
3742 | .errstr = "R1 min value is outside of the array range", | |
3743 | .result = REJECT, | |
3744 | .prog_type = BPF_PROG_TYPE_TRACEPOINT, | |
3745 | }, | |
3746 | { | |
3747 | "helper access to adjusted map (via const reg): full range", | |
3748 | .insns = { | |
3749 | BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), | |
3750 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8), | |
3751 | BPF_ST_MEM(BPF_DW, BPF_REG_2, 0, 0), | |
3752 | BPF_LD_MAP_FD(BPF_REG_1, 0), | |
3753 | BPF_EMIT_CALL(BPF_FUNC_map_lookup_elem), | |
3754 | BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 6), | |
3755 | BPF_MOV64_REG(BPF_REG_1, BPF_REG_0), | |
3756 | BPF_MOV64_IMM(BPF_REG_3, | |
3757 | offsetof(struct test_val, foo)), | |
3758 | BPF_ALU64_REG(BPF_ADD, BPF_REG_1, BPF_REG_3), | |
3759 | BPF_MOV64_IMM(BPF_REG_2, | |
3760 | sizeof(struct test_val) - | |
3761 | offsetof(struct test_val, foo)), | |
3762 | BPF_MOV64_IMM(BPF_REG_3, 0), | |
3763 | BPF_EMIT_CALL(BPF_FUNC_probe_read), | |
3764 | BPF_EXIT_INSN(), | |
3765 | }, | |
3766 | .fixup_map2 = { 3 }, | |
3767 | .result = ACCEPT, | |
3768 | .prog_type = BPF_PROG_TYPE_TRACEPOINT, | |
3769 | }, | |
3770 | { | |
3771 | "helper access to adjusted map (via const reg): partial range", | |
3772 | .insns = { | |
3773 | BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), | |
3774 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8), | |
3775 | BPF_ST_MEM(BPF_DW, BPF_REG_2, 0, 0), | |
3776 | BPF_LD_MAP_FD(BPF_REG_1, 0), | |
3777 | BPF_EMIT_CALL(BPF_FUNC_map_lookup_elem), | |
3778 | BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 6), | |
3779 | BPF_MOV64_REG(BPF_REG_1, BPF_REG_0), | |
3780 | BPF_MOV64_IMM(BPF_REG_3, | |
3781 | offsetof(struct test_val, foo)), | |
3782 | BPF_ALU64_REG(BPF_ADD, BPF_REG_1, BPF_REG_3), | |
3783 | BPF_MOV64_IMM(BPF_REG_2, 8), | |
3784 | BPF_MOV64_IMM(BPF_REG_3, 0), | |
3785 | BPF_EMIT_CALL(BPF_FUNC_probe_read), | |
3786 | BPF_EXIT_INSN(), | |
3787 | }, | |
3788 | .fixup_map2 = { 3 }, | |
3789 | .result = ACCEPT, | |
3790 | .prog_type = BPF_PROG_TYPE_TRACEPOINT, | |
3791 | }, | |
3792 | { | |
3793 | "helper access to adjusted map (via const reg): empty range", | |
3794 | .insns = { | |
3795 | BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), | |
3796 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8), | |
3797 | BPF_ST_MEM(BPF_DW, BPF_REG_2, 0, 0), | |
3798 | BPF_LD_MAP_FD(BPF_REG_1, 0), | |
3799 | BPF_EMIT_CALL(BPF_FUNC_map_lookup_elem), | |
3800 | BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 6), | |
3801 | BPF_MOV64_REG(BPF_REG_1, BPF_REG_0), | |
3802 | BPF_MOV64_IMM(BPF_REG_3, 0), | |
3803 | BPF_ALU64_REG(BPF_ADD, BPF_REG_1, BPF_REG_3), | |
3804 | BPF_MOV64_IMM(BPF_REG_2, 0), | |
3805 | BPF_MOV64_IMM(BPF_REG_3, 0), | |
3806 | BPF_EMIT_CALL(BPF_FUNC_probe_read), | |
3807 | BPF_EXIT_INSN(), | |
3808 | }, | |
3809 | .fixup_map2 = { 3 }, | |
3810 | .errstr = "R1 min value is outside of the array range", | |
3811 | .result = REJECT, | |
3812 | .prog_type = BPF_PROG_TYPE_TRACEPOINT, | |
3813 | }, | |
3814 | { | |
3815 | "helper access to adjusted map (via const reg): out-of-bound range", | |
3816 | .insns = { | |
3817 | BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), | |
3818 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8), | |
3819 | BPF_ST_MEM(BPF_DW, BPF_REG_2, 0, 0), | |
3820 | BPF_LD_MAP_FD(BPF_REG_1, 0), | |
3821 | BPF_EMIT_CALL(BPF_FUNC_map_lookup_elem), | |
3822 | BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 6), | |
3823 | BPF_MOV64_REG(BPF_REG_1, BPF_REG_0), | |
3824 | BPF_MOV64_IMM(BPF_REG_3, | |
3825 | offsetof(struct test_val, foo)), | |
3826 | BPF_ALU64_REG(BPF_ADD, BPF_REG_1, BPF_REG_3), | |
3827 | BPF_MOV64_IMM(BPF_REG_2, | |
3828 | sizeof(struct test_val) - | |
3829 | offsetof(struct test_val, foo) + 8), | |
3830 | BPF_MOV64_IMM(BPF_REG_3, 0), | |
3831 | BPF_EMIT_CALL(BPF_FUNC_probe_read), | |
3832 | BPF_EXIT_INSN(), | |
3833 | }, | |
3834 | .fixup_map2 = { 3 }, | |
3835 | .errstr = "invalid access to map value, value_size=48 off=4 size=52", | |
3836 | .result = REJECT, | |
3837 | .prog_type = BPF_PROG_TYPE_TRACEPOINT, | |
3838 | }, | |
3839 | { | |
3840 | "helper access to adjusted map (via const reg): negative range (> adjustment)", | |
3841 | .insns = { | |
3842 | BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), | |
3843 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8), | |
3844 | BPF_ST_MEM(BPF_DW, BPF_REG_2, 0, 0), | |
3845 | BPF_LD_MAP_FD(BPF_REG_1, 0), | |
3846 | BPF_EMIT_CALL(BPF_FUNC_map_lookup_elem), | |
3847 | BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 6), | |
3848 | BPF_MOV64_REG(BPF_REG_1, BPF_REG_0), | |
3849 | BPF_MOV64_IMM(BPF_REG_3, | |
3850 | offsetof(struct test_val, foo)), | |
3851 | BPF_ALU64_REG(BPF_ADD, BPF_REG_1, BPF_REG_3), | |
3852 | BPF_MOV64_IMM(BPF_REG_2, -8), | |
3853 | BPF_MOV64_IMM(BPF_REG_3, 0), | |
3854 | BPF_EMIT_CALL(BPF_FUNC_probe_read), | |
3855 | BPF_EXIT_INSN(), | |
3856 | }, | |
3857 | .fixup_map2 = { 3 }, | |
3858 | .errstr = "invalid access to map value, value_size=48 off=4 size=-8", | |
3859 | .result = REJECT, | |
3860 | .prog_type = BPF_PROG_TYPE_TRACEPOINT, | |
3861 | }, | |
3862 | { | |
3863 | "helper access to adjusted map (via const reg): negative range (< adjustment)", | |
3864 | .insns = { | |
3865 | BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), | |
3866 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8), | |
3867 | BPF_ST_MEM(BPF_DW, BPF_REG_2, 0, 0), | |
3868 | BPF_LD_MAP_FD(BPF_REG_1, 0), | |
3869 | BPF_EMIT_CALL(BPF_FUNC_map_lookup_elem), | |
3870 | BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 6), | |
3871 | BPF_MOV64_REG(BPF_REG_1, BPF_REG_0), | |
3872 | BPF_MOV64_IMM(BPF_REG_3, | |
3873 | offsetof(struct test_val, foo)), | |
3874 | BPF_ALU64_REG(BPF_ADD, BPF_REG_1, BPF_REG_3), | |
3875 | BPF_MOV64_IMM(BPF_REG_2, -1), | |
3876 | BPF_MOV64_IMM(BPF_REG_3, 0), | |
3877 | BPF_EMIT_CALL(BPF_FUNC_probe_read), | |
3878 | BPF_EXIT_INSN(), | |
3879 | }, | |
3880 | .fixup_map2 = { 3 }, | |
3881 | .errstr = "R1 min value is outside of the array range", | |
3882 | .result = REJECT, | |
3883 | .prog_type = BPF_PROG_TYPE_TRACEPOINT, | |
3884 | }, | |
3885 | { | |
3886 | "helper access to adjusted map (via variable): full range", | |
3887 | .insns = { | |
3888 | BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), | |
3889 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8), | |
3890 | BPF_ST_MEM(BPF_DW, BPF_REG_2, 0, 0), | |
3891 | BPF_LD_MAP_FD(BPF_REG_1, 0), | |
3892 | BPF_EMIT_CALL(BPF_FUNC_map_lookup_elem), | |
3893 | BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 7), | |
3894 | BPF_MOV64_REG(BPF_REG_1, BPF_REG_0), | |
3895 | BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_0, 0), | |
3896 | BPF_JMP_IMM(BPF_JGT, BPF_REG_3, | |
3897 | offsetof(struct test_val, foo), 4), | |
3898 | BPF_ALU64_REG(BPF_ADD, BPF_REG_1, BPF_REG_3), | |
3899 | BPF_MOV64_IMM(BPF_REG_2, | |
3900 | sizeof(struct test_val) - | |
3901 | offsetof(struct test_val, foo)), | |
3902 | BPF_MOV64_IMM(BPF_REG_3, 0), | |
3903 | BPF_EMIT_CALL(BPF_FUNC_probe_read), | |
3904 | BPF_EXIT_INSN(), | |
3905 | }, | |
3906 | .fixup_map2 = { 3 }, | |
3907 | .result = ACCEPT, | |
3908 | .prog_type = BPF_PROG_TYPE_TRACEPOINT, | |
3909 | }, | |
3910 | { | |
3911 | "helper access to adjusted map (via variable): partial range", | |
3912 | .insns = { | |
3913 | BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), | |
3914 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8), | |
3915 | BPF_ST_MEM(BPF_DW, BPF_REG_2, 0, 0), | |
3916 | BPF_LD_MAP_FD(BPF_REG_1, 0), | |
3917 | BPF_EMIT_CALL(BPF_FUNC_map_lookup_elem), | |
3918 | BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 7), | |
3919 | BPF_MOV64_REG(BPF_REG_1, BPF_REG_0), | |
3920 | BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_0, 0), | |
3921 | BPF_JMP_IMM(BPF_JGT, BPF_REG_3, | |
3922 | offsetof(struct test_val, foo), 4), | |
3923 | BPF_ALU64_REG(BPF_ADD, BPF_REG_1, BPF_REG_3), | |
3924 | BPF_MOV64_IMM(BPF_REG_2, 8), | |
3925 | BPF_MOV64_IMM(BPF_REG_3, 0), | |
3926 | BPF_EMIT_CALL(BPF_FUNC_probe_read), | |
3927 | BPF_EXIT_INSN(), | |
3928 | }, | |
3929 | .fixup_map2 = { 3 }, | |
3930 | .result = ACCEPT, | |
3931 | .prog_type = BPF_PROG_TYPE_TRACEPOINT, | |
3932 | }, | |
3933 | { | |
3934 | "helper access to adjusted map (via variable): empty range", | |
3935 | .insns = { | |
3936 | BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), | |
3937 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8), | |
3938 | BPF_ST_MEM(BPF_DW, BPF_REG_2, 0, 0), | |
3939 | BPF_LD_MAP_FD(BPF_REG_1, 0), | |
3940 | BPF_EMIT_CALL(BPF_FUNC_map_lookup_elem), | |
3941 | BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 7), | |
3942 | BPF_MOV64_REG(BPF_REG_1, BPF_REG_0), | |
3943 | BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_0, 0), | |
3944 | BPF_JMP_IMM(BPF_JGT, BPF_REG_3, | |
3945 | offsetof(struct test_val, foo), 4), | |
3946 | BPF_ALU64_REG(BPF_ADD, BPF_REG_1, BPF_REG_3), | |
3947 | BPF_MOV64_IMM(BPF_REG_2, 0), | |
3948 | BPF_MOV64_IMM(BPF_REG_3, 0), | |
3949 | BPF_EMIT_CALL(BPF_FUNC_probe_read), | |
3950 | BPF_EXIT_INSN(), | |
3951 | }, | |
3952 | .fixup_map2 = { 3 }, | |
3953 | .errstr = "R1 min value is outside of the array range", | |
3954 | .result = REJECT, | |
3955 | .prog_type = BPF_PROG_TYPE_TRACEPOINT, | |
3956 | }, | |
3957 | { | |
3958 | "helper access to adjusted map (via variable): no max check", | |
3959 | .insns = { | |
3960 | BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), | |
3961 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8), | |
3962 | BPF_ST_MEM(BPF_DW, BPF_REG_2, 0, 0), | |
3963 | BPF_LD_MAP_FD(BPF_REG_1, 0), | |
3964 | BPF_EMIT_CALL(BPF_FUNC_map_lookup_elem), | |
3965 | BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 6), | |
3966 | BPF_MOV64_REG(BPF_REG_1, BPF_REG_0), | |
3967 | BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_0, 0), | |
3968 | BPF_ALU64_REG(BPF_ADD, BPF_REG_1, BPF_REG_3), | |
3969 | BPF_MOV64_IMM(BPF_REG_2, 0), | |
3970 | BPF_MOV64_IMM(BPF_REG_3, 0), | |
3971 | BPF_EMIT_CALL(BPF_FUNC_probe_read), | |
3972 | BPF_EXIT_INSN(), | |
3973 | }, | |
3974 | .fixup_map2 = { 3 }, | |
3975 | .errstr = "R1 min value is negative, either use unsigned index or do a if (index >=0) check", | |
3976 | .result = REJECT, | |
3977 | .prog_type = BPF_PROG_TYPE_TRACEPOINT, | |
3978 | }, | |
3979 | { | |
3980 | "helper access to adjusted map (via variable): wrong max check", | |
3981 | .insns = { | |
3982 | BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), | |
3983 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8), | |
3984 | BPF_ST_MEM(BPF_DW, BPF_REG_2, 0, 0), | |
3985 | BPF_LD_MAP_FD(BPF_REG_1, 0), | |
3986 | BPF_EMIT_CALL(BPF_FUNC_map_lookup_elem), | |
3987 | BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 7), | |
3988 | BPF_MOV64_REG(BPF_REG_1, BPF_REG_0), | |
3989 | BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_0, 0), | |
3990 | BPF_JMP_IMM(BPF_JGT, BPF_REG_3, | |
3991 | offsetof(struct test_val, foo), 4), | |
3992 | BPF_ALU64_REG(BPF_ADD, BPF_REG_1, BPF_REG_3), | |
3993 | BPF_MOV64_IMM(BPF_REG_2, | |
3994 | sizeof(struct test_val) - | |
3995 | offsetof(struct test_val, foo) + 1), | |
3996 | BPF_MOV64_IMM(BPF_REG_3, 0), | |
3997 | BPF_EMIT_CALL(BPF_FUNC_probe_read), | |
3998 | BPF_EXIT_INSN(), | |
3999 | }, | |
4000 | .fixup_map2 = { 3 }, | |
4001 | .errstr = "invalid access to map value, value_size=48 off=4 size=45", | |
4002 | .result = REJECT, | |
4003 | .prog_type = BPF_PROG_TYPE_TRACEPOINT, | |
4004 | }, | |
f0318d01 GB |
4005 | { |
4006 | "map element value is preserved across register spilling", | |
4007 | .insns = { | |
4008 | BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), | |
4009 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8), | |
4010 | BPF_ST_MEM(BPF_DW, BPF_REG_2, 0, 0), | |
4011 | BPF_LD_MAP_FD(BPF_REG_1, 0), | |
4012 | BPF_EMIT_CALL(BPF_FUNC_map_lookup_elem), | |
4013 | BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 6), | |
4014 | BPF_ST_MEM(BPF_DW, BPF_REG_0, 0, 42), | |
4015 | BPF_MOV64_REG(BPF_REG_1, BPF_REG_10), | |
4016 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, -184), | |
4017 | BPF_STX_MEM(BPF_DW, BPF_REG_1, BPF_REG_0, 0), | |
4018 | BPF_LDX_MEM(BPF_DW, BPF_REG_3, BPF_REG_1, 0), | |
4019 | BPF_ST_MEM(BPF_DW, BPF_REG_3, 0, 42), | |
4020 | BPF_EXIT_INSN(), | |
4021 | }, | |
4022 | .fixup_map2 = { 3 }, | |
4023 | .errstr_unpriv = "R0 leaks addr", | |
4024 | .result = ACCEPT, | |
4025 | .result_unpriv = REJECT, | |
4026 | }, | |
4027 | { | |
02ea80b1 DB |
4028 | "map element value or null is marked on register spilling", |
4029 | .insns = { | |
4030 | BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), | |
4031 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8), | |
4032 | BPF_ST_MEM(BPF_DW, BPF_REG_2, 0, 0), | |
4033 | BPF_LD_MAP_FD(BPF_REG_1, 0), | |
4034 | BPF_EMIT_CALL(BPF_FUNC_map_lookup_elem), | |
4035 | BPF_MOV64_REG(BPF_REG_1, BPF_REG_10), | |
4036 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, -152), | |
4037 | BPF_STX_MEM(BPF_DW, BPF_REG_1, BPF_REG_0, 0), | |
4038 | BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 2), | |
4039 | BPF_LDX_MEM(BPF_DW, BPF_REG_3, BPF_REG_1, 0), | |
4040 | BPF_ST_MEM(BPF_DW, BPF_REG_3, 0, 42), | |
4041 | BPF_EXIT_INSN(), | |
4042 | }, | |
4043 | .fixup_map2 = { 3 }, | |
4044 | .errstr_unpriv = "R0 leaks addr", | |
4045 | .result = ACCEPT, | |
4046 | .result_unpriv = REJECT, | |
4047 | }, | |
4048 | { | |
4049 | "map element value store of cleared call register", | |
4050 | .insns = { | |
4051 | BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), | |
4052 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8), | |
4053 | BPF_ST_MEM(BPF_DW, BPF_REG_2, 0, 0), | |
4054 | BPF_LD_MAP_FD(BPF_REG_1, 0), | |
4055 | BPF_EMIT_CALL(BPF_FUNC_map_lookup_elem), | |
4056 | BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 1), | |
4057 | BPF_STX_MEM(BPF_DW, BPF_REG_0, BPF_REG_1, 0), | |
4058 | BPF_EXIT_INSN(), | |
4059 | }, | |
4060 | .fixup_map2 = { 3 }, | |
4061 | .errstr_unpriv = "R1 !read_ok", | |
4062 | .errstr = "R1 !read_ok", | |
4063 | .result = REJECT, | |
4064 | .result_unpriv = REJECT, | |
4065 | }, | |
4066 | { | |
4067 | "map element value with unaligned store", | |
4068 | .insns = { | |
4069 | BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), | |
4070 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8), | |
4071 | BPF_ST_MEM(BPF_DW, BPF_REG_2, 0, 0), | |
4072 | BPF_LD_MAP_FD(BPF_REG_1, 0), | |
4073 | BPF_EMIT_CALL(BPF_FUNC_map_lookup_elem), | |
4074 | BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 17), | |
4075 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_0, 3), | |
4076 | BPF_ST_MEM(BPF_DW, BPF_REG_0, 0, 42), | |
4077 | BPF_ST_MEM(BPF_DW, BPF_REG_0, 2, 43), | |
4078 | BPF_ST_MEM(BPF_DW, BPF_REG_0, -2, 44), | |
4079 | BPF_MOV64_REG(BPF_REG_8, BPF_REG_0), | |
4080 | BPF_ST_MEM(BPF_DW, BPF_REG_8, 0, 32), | |
4081 | BPF_ST_MEM(BPF_DW, BPF_REG_8, 2, 33), | |
4082 | BPF_ST_MEM(BPF_DW, BPF_REG_8, -2, 34), | |
4083 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_8, 5), | |
4084 | BPF_ST_MEM(BPF_DW, BPF_REG_8, 0, 22), | |
4085 | BPF_ST_MEM(BPF_DW, BPF_REG_8, 4, 23), | |
4086 | BPF_ST_MEM(BPF_DW, BPF_REG_8, -7, 24), | |
4087 | BPF_MOV64_REG(BPF_REG_7, BPF_REG_8), | |
4088 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_7, 3), | |
4089 | BPF_ST_MEM(BPF_DW, BPF_REG_7, 0, 22), | |
4090 | BPF_ST_MEM(BPF_DW, BPF_REG_7, 4, 23), | |
4091 | BPF_ST_MEM(BPF_DW, BPF_REG_7, -4, 24), | |
4092 | BPF_EXIT_INSN(), | |
4093 | }, | |
4094 | .fixup_map2 = { 3 }, | |
4095 | .errstr_unpriv = "R0 pointer arithmetic prohibited", | |
4096 | .result = ACCEPT, | |
4097 | .result_unpriv = REJECT, | |
4098 | .flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS, | |
4099 | }, | |
4100 | { | |
4101 | "map element value with unaligned load", | |
4102 | .insns = { | |
4103 | BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), | |
4104 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8), | |
4105 | BPF_ST_MEM(BPF_DW, BPF_REG_2, 0, 0), | |
4106 | BPF_LD_MAP_FD(BPF_REG_1, 0), | |
4107 | BPF_EMIT_CALL(BPF_FUNC_map_lookup_elem), | |
4108 | BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 11), | |
4109 | BPF_LDX_MEM(BPF_W, BPF_REG_1, BPF_REG_0, 0), | |
4110 | BPF_JMP_IMM(BPF_JGE, BPF_REG_1, MAX_ENTRIES, 9), | |
4111 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_0, 3), | |
4112 | BPF_LDX_MEM(BPF_DW, BPF_REG_7, BPF_REG_0, 0), | |
4113 | BPF_LDX_MEM(BPF_DW, BPF_REG_7, BPF_REG_0, 2), | |
4114 | BPF_MOV64_REG(BPF_REG_8, BPF_REG_0), | |
4115 | BPF_LDX_MEM(BPF_DW, BPF_REG_7, BPF_REG_8, 0), | |
4116 | BPF_LDX_MEM(BPF_DW, BPF_REG_7, BPF_REG_8, 2), | |
4117 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_0, 5), | |
4118 | BPF_LDX_MEM(BPF_DW, BPF_REG_7, BPF_REG_0, 0), | |
4119 | BPF_LDX_MEM(BPF_DW, BPF_REG_7, BPF_REG_0, 4), | |
4120 | BPF_EXIT_INSN(), | |
4121 | }, | |
4122 | .fixup_map2 = { 3 }, | |
4123 | .errstr_unpriv = "R0 pointer arithmetic prohibited", | |
4124 | .result = ACCEPT, | |
4125 | .result_unpriv = REJECT, | |
4126 | .flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS, | |
4127 | }, | |
4128 | { | |
4129 | "map element value illegal alu op, 1", | |
4130 | .insns = { | |
4131 | BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), | |
4132 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8), | |
4133 | BPF_ST_MEM(BPF_DW, BPF_REG_2, 0, 0), | |
4134 | BPF_LD_MAP_FD(BPF_REG_1, 0), | |
4135 | BPF_EMIT_CALL(BPF_FUNC_map_lookup_elem), | |
4136 | BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 2), | |
4137 | BPF_ALU64_IMM(BPF_AND, BPF_REG_0, 8), | |
4138 | BPF_ST_MEM(BPF_DW, BPF_REG_0, 0, 22), | |
4139 | BPF_EXIT_INSN(), | |
4140 | }, | |
4141 | .fixup_map2 = { 3 }, | |
4142 | .errstr_unpriv = "R0 pointer arithmetic prohibited", | |
4143 | .errstr = "invalid mem access 'inv'", | |
4144 | .result = REJECT, | |
4145 | .result_unpriv = REJECT, | |
4146 | }, | |
4147 | { | |
4148 | "map element value illegal alu op, 2", | |
4149 | .insns = { | |
4150 | BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), | |
4151 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8), | |
4152 | BPF_ST_MEM(BPF_DW, BPF_REG_2, 0, 0), | |
4153 | BPF_LD_MAP_FD(BPF_REG_1, 0), | |
4154 | BPF_EMIT_CALL(BPF_FUNC_map_lookup_elem), | |
4155 | BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 2), | |
4156 | BPF_ALU32_IMM(BPF_ADD, BPF_REG_0, 0), | |
4157 | BPF_ST_MEM(BPF_DW, BPF_REG_0, 0, 22), | |
4158 | BPF_EXIT_INSN(), | |
4159 | }, | |
4160 | .fixup_map2 = { 3 }, | |
4161 | .errstr_unpriv = "R0 pointer arithmetic prohibited", | |
4162 | .errstr = "invalid mem access 'inv'", | |
4163 | .result = REJECT, | |
4164 | .result_unpriv = REJECT, | |
4165 | }, | |
4166 | { | |
4167 | "map element value illegal alu op, 3", | |
4168 | .insns = { | |
4169 | BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), | |
4170 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8), | |
4171 | BPF_ST_MEM(BPF_DW, BPF_REG_2, 0, 0), | |
4172 | BPF_LD_MAP_FD(BPF_REG_1, 0), | |
4173 | BPF_EMIT_CALL(BPF_FUNC_map_lookup_elem), | |
4174 | BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 2), | |
4175 | BPF_ALU64_IMM(BPF_DIV, BPF_REG_0, 42), | |
4176 | BPF_ST_MEM(BPF_DW, BPF_REG_0, 0, 22), | |
4177 | BPF_EXIT_INSN(), | |
4178 | }, | |
4179 | .fixup_map2 = { 3 }, | |
4180 | .errstr_unpriv = "R0 pointer arithmetic prohibited", | |
4181 | .errstr = "invalid mem access 'inv'", | |
4182 | .result = REJECT, | |
4183 | .result_unpriv = REJECT, | |
4184 | }, | |
4185 | { | |
4186 | "map element value illegal alu op, 4", | |
4187 | .insns = { | |
4188 | BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), | |
4189 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8), | |
4190 | BPF_ST_MEM(BPF_DW, BPF_REG_2, 0, 0), | |
4191 | BPF_LD_MAP_FD(BPF_REG_1, 0), | |
4192 | BPF_EMIT_CALL(BPF_FUNC_map_lookup_elem), | |
4193 | BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 2), | |
4194 | BPF_ENDIAN(BPF_FROM_BE, BPF_REG_0, 64), | |
4195 | BPF_ST_MEM(BPF_DW, BPF_REG_0, 0, 22), | |
4196 | BPF_EXIT_INSN(), | |
4197 | }, | |
4198 | .fixup_map2 = { 3 }, | |
4199 | .errstr_unpriv = "R0 pointer arithmetic prohibited", | |
4200 | .errstr = "invalid mem access 'inv'", | |
4201 | .result = REJECT, | |
4202 | .result_unpriv = REJECT, | |
4203 | }, | |
4204 | { | |
4205 | "map element value illegal alu op, 5", | |
4206 | .insns = { | |
4207 | BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), | |
4208 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8), | |
4209 | BPF_ST_MEM(BPF_DW, BPF_REG_2, 0, 0), | |
4210 | BPF_LD_MAP_FD(BPF_REG_1, 0), | |
4211 | BPF_EMIT_CALL(BPF_FUNC_map_lookup_elem), | |
4212 | BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 7), | |
4213 | BPF_MOV64_IMM(BPF_REG_3, 4096), | |
4214 | BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), | |
4215 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8), | |
4216 | BPF_STX_MEM(BPF_DW, BPF_REG_2, BPF_REG_0, 0), | |
4217 | BPF_STX_XADD(BPF_DW, BPF_REG_2, BPF_REG_3, 0), | |
4218 | BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_2, 0), | |
4219 | BPF_ST_MEM(BPF_DW, BPF_REG_0, 0, 22), | |
4220 | BPF_EXIT_INSN(), | |
4221 | }, | |
4222 | .fixup_map2 = { 3 }, | |
4223 | .errstr_unpriv = "R0 invalid mem access 'inv'", | |
4224 | .errstr = "R0 invalid mem access 'inv'", | |
4225 | .result = REJECT, | |
4226 | .result_unpriv = REJECT, | |
4227 | }, | |
4228 | { | |
4229 | "map element value is preserved across register spilling", | |
f0318d01 GB |
4230 | .insns = { |
4231 | BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), | |
4232 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8), | |
4233 | BPF_ST_MEM(BPF_DW, BPF_REG_2, 0, 0), | |
4234 | BPF_LD_MAP_FD(BPF_REG_1, 0), | |
4235 | BPF_EMIT_CALL(BPF_FUNC_map_lookup_elem), | |
4236 | BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 7), | |
4237 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_0, | |
4238 | offsetof(struct test_val, foo)), | |
4239 | BPF_ST_MEM(BPF_DW, BPF_REG_0, 0, 42), | |
4240 | BPF_MOV64_REG(BPF_REG_1, BPF_REG_10), | |
4241 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, -184), | |
4242 | BPF_STX_MEM(BPF_DW, BPF_REG_1, BPF_REG_0, 0), | |
4243 | BPF_LDX_MEM(BPF_DW, BPF_REG_3, BPF_REG_1, 0), | |
4244 | BPF_ST_MEM(BPF_DW, BPF_REG_3, 0, 42), | |
4245 | BPF_EXIT_INSN(), | |
4246 | }, | |
4247 | .fixup_map2 = { 3 }, | |
4248 | .errstr_unpriv = "R0 pointer arithmetic prohibited", | |
4249 | .result = ACCEPT, | |
4250 | .result_unpriv = REJECT, | |
02ea80b1 | 4251 | .flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS, |
f0318d01 | 4252 | }, |
06c1c049 GB |
4253 | { |
4254 | "helper access to variable memory: stack, bitwise AND + JMP, correct bounds", | |
4255 | .insns = { | |
4256 | BPF_MOV64_REG(BPF_REG_1, BPF_REG_10), | |
4257 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, -64), | |
4258 | BPF_MOV64_IMM(BPF_REG_0, 0), | |
4259 | BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_0, -64), | |
4260 | BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_0, -56), | |
4261 | BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_0, -48), | |
4262 | BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_0, -40), | |
4263 | BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_0, -32), | |
4264 | BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_0, -24), | |
4265 | BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_0, -16), | |
4266 | BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_0, -8), | |
4267 | BPF_MOV64_IMM(BPF_REG_2, 16), | |
4268 | BPF_STX_MEM(BPF_DW, BPF_REG_1, BPF_REG_2, -128), | |
4269 | BPF_LDX_MEM(BPF_DW, BPF_REG_2, BPF_REG_1, -128), | |
4270 | BPF_ALU64_IMM(BPF_AND, BPF_REG_2, 64), | |
4271 | BPF_MOV64_IMM(BPF_REG_4, 0), | |
4272 | BPF_JMP_REG(BPF_JGE, BPF_REG_4, BPF_REG_2, 2), | |
4273 | BPF_MOV64_IMM(BPF_REG_3, 0), | |
4274 | BPF_EMIT_CALL(BPF_FUNC_probe_read), | |
4275 | BPF_MOV64_IMM(BPF_REG_0, 0), | |
4276 | BPF_EXIT_INSN(), | |
4277 | }, | |
4278 | .result = ACCEPT, | |
4279 | .prog_type = BPF_PROG_TYPE_TRACEPOINT, | |
4280 | }, | |
4281 | { | |
4282 | "helper access to variable memory: stack, bitwise AND, zero included", | |
4283 | .insns = { | |
4284 | BPF_MOV64_REG(BPF_REG_1, BPF_REG_10), | |
4285 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, -64), | |
4286 | BPF_MOV64_IMM(BPF_REG_2, 16), | |
4287 | BPF_STX_MEM(BPF_DW, BPF_REG_1, BPF_REG_2, -128), | |
4288 | BPF_LDX_MEM(BPF_DW, BPF_REG_2, BPF_REG_1, -128), | |
4289 | BPF_ALU64_IMM(BPF_AND, BPF_REG_2, 64), | |
4290 | BPF_MOV64_IMM(BPF_REG_3, 0), | |
4291 | BPF_EMIT_CALL(BPF_FUNC_probe_read), | |
4292 | BPF_EXIT_INSN(), | |
4293 | }, | |
4294 | .errstr = "invalid stack type R1 off=-64 access_size=0", | |
4295 | .result = REJECT, | |
4296 | .prog_type = BPF_PROG_TYPE_TRACEPOINT, | |
4297 | }, | |
4298 | { | |
4299 | "helper access to variable memory: stack, bitwise AND + JMP, wrong max", | |
4300 | .insns = { | |
4301 | BPF_MOV64_REG(BPF_REG_1, BPF_REG_10), | |
4302 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, -64), | |
4303 | BPF_MOV64_IMM(BPF_REG_2, 16), | |
4304 | BPF_STX_MEM(BPF_DW, BPF_REG_1, BPF_REG_2, -128), | |
4305 | BPF_LDX_MEM(BPF_DW, BPF_REG_2, BPF_REG_1, -128), | |
4306 | BPF_ALU64_IMM(BPF_AND, BPF_REG_2, 65), | |
4307 | BPF_MOV64_IMM(BPF_REG_4, 0), | |
4308 | BPF_JMP_REG(BPF_JGE, BPF_REG_4, BPF_REG_2, 2), | |
4309 | BPF_MOV64_IMM(BPF_REG_3, 0), | |
4310 | BPF_EMIT_CALL(BPF_FUNC_probe_read), | |
4311 | BPF_MOV64_IMM(BPF_REG_0, 0), | |
4312 | BPF_EXIT_INSN(), | |
4313 | }, | |
4314 | .errstr = "invalid stack type R1 off=-64 access_size=65", | |
4315 | .result = REJECT, | |
4316 | .prog_type = BPF_PROG_TYPE_TRACEPOINT, | |
4317 | }, | |
4318 | { | |
4319 | "helper access to variable memory: stack, JMP, correct bounds", | |
4320 | .insns = { | |
4321 | BPF_MOV64_REG(BPF_REG_1, BPF_REG_10), | |
4322 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, -64), | |
4323 | BPF_MOV64_IMM(BPF_REG_0, 0), | |
4324 | BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_0, -64), | |
4325 | BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_0, -56), | |
4326 | BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_0, -48), | |
4327 | BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_0, -40), | |
4328 | BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_0, -32), | |
4329 | BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_0, -24), | |
4330 | BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_0, -16), | |
4331 | BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_0, -8), | |
4332 | BPF_MOV64_IMM(BPF_REG_2, 16), | |
4333 | BPF_STX_MEM(BPF_DW, BPF_REG_1, BPF_REG_2, -128), | |
4334 | BPF_LDX_MEM(BPF_DW, BPF_REG_2, BPF_REG_1, -128), | |
4335 | BPF_JMP_IMM(BPF_JGT, BPF_REG_2, 64, 4), | |
4336 | BPF_MOV64_IMM(BPF_REG_4, 0), | |
4337 | BPF_JMP_REG(BPF_JGE, BPF_REG_4, BPF_REG_2, 2), | |
4338 | BPF_MOV64_IMM(BPF_REG_3, 0), | |
4339 | BPF_EMIT_CALL(BPF_FUNC_probe_read), | |
4340 | BPF_MOV64_IMM(BPF_REG_0, 0), | |
4341 | BPF_EXIT_INSN(), | |
4342 | }, | |
4343 | .result = ACCEPT, | |
4344 | .prog_type = BPF_PROG_TYPE_TRACEPOINT, | |
4345 | }, | |
4346 | { | |
4347 | "helper access to variable memory: stack, JMP (signed), correct bounds", | |
4348 | .insns = { | |
4349 | BPF_MOV64_REG(BPF_REG_1, BPF_REG_10), | |
4350 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, -64), | |
4351 | BPF_MOV64_IMM(BPF_REG_0, 0), | |
4352 | BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_0, -64), | |
4353 | BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_0, -56), | |
4354 | BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_0, -48), | |
4355 | BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_0, -40), | |
4356 | BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_0, -32), | |
4357 | BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_0, -24), | |
4358 | BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_0, -16), | |
4359 | BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_0, -8), | |
4360 | BPF_MOV64_IMM(BPF_REG_2, 16), | |
4361 | BPF_STX_MEM(BPF_DW, BPF_REG_1, BPF_REG_2, -128), | |
4362 | BPF_LDX_MEM(BPF_DW, BPF_REG_2, BPF_REG_1, -128), | |
4363 | BPF_JMP_IMM(BPF_JSGT, BPF_REG_2, 64, 4), | |
4364 | BPF_MOV64_IMM(BPF_REG_4, 0), | |
4365 | BPF_JMP_REG(BPF_JSGE, BPF_REG_4, BPF_REG_2, 2), | |
4366 | BPF_MOV64_IMM(BPF_REG_3, 0), | |
4367 | BPF_EMIT_CALL(BPF_FUNC_probe_read), | |
4368 | BPF_MOV64_IMM(BPF_REG_0, 0), | |
4369 | BPF_EXIT_INSN(), | |
4370 | }, | |
4371 | .result = ACCEPT, | |
4372 | .prog_type = BPF_PROG_TYPE_TRACEPOINT, | |
4373 | }, | |
4374 | { | |
4375 | "helper access to variable memory: stack, JMP, bounds + offset", | |
4376 | .insns = { | |
4377 | BPF_MOV64_REG(BPF_REG_1, BPF_REG_10), | |
4378 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, -64), | |
4379 | BPF_MOV64_IMM(BPF_REG_2, 16), | |
4380 | BPF_STX_MEM(BPF_DW, BPF_REG_1, BPF_REG_2, -128), | |
4381 | BPF_LDX_MEM(BPF_DW, BPF_REG_2, BPF_REG_1, -128), | |
4382 | BPF_JMP_IMM(BPF_JGT, BPF_REG_2, 64, 5), | |
4383 | BPF_MOV64_IMM(BPF_REG_4, 0), | |
4384 | BPF_JMP_REG(BPF_JGE, BPF_REG_4, BPF_REG_2, 3), | |
4385 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, 1), | |
4386 | BPF_MOV64_IMM(BPF_REG_3, 0), | |
4387 | BPF_EMIT_CALL(BPF_FUNC_probe_read), | |
4388 | BPF_MOV64_IMM(BPF_REG_0, 0), | |
4389 | BPF_EXIT_INSN(), | |
4390 | }, | |
4391 | .errstr = "invalid stack type R1 off=-64 access_size=65", | |
4392 | .result = REJECT, | |
4393 | .prog_type = BPF_PROG_TYPE_TRACEPOINT, | |
4394 | }, | |
4395 | { | |
4396 | "helper access to variable memory: stack, JMP, wrong max", | |
4397 | .insns = { | |
4398 | BPF_MOV64_REG(BPF_REG_1, BPF_REG_10), | |
4399 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, -64), | |
4400 | BPF_MOV64_IMM(BPF_REG_2, 16), | |
4401 | BPF_STX_MEM(BPF_DW, BPF_REG_1, BPF_REG_2, -128), | |
4402 | BPF_LDX_MEM(BPF_DW, BPF_REG_2, BPF_REG_1, -128), | |
4403 | BPF_JMP_IMM(BPF_JGT, BPF_REG_2, 65, 4), | |
4404 | BPF_MOV64_IMM(BPF_REG_4, 0), | |
4405 | BPF_JMP_REG(BPF_JGE, BPF_REG_4, BPF_REG_2, 2), | |
4406 | BPF_MOV64_IMM(BPF_REG_3, 0), | |
4407 | BPF_EMIT_CALL(BPF_FUNC_probe_read), | |
4408 | BPF_MOV64_IMM(BPF_REG_0, 0), | |
4409 | BPF_EXIT_INSN(), | |
4410 | }, | |
4411 | .errstr = "invalid stack type R1 off=-64 access_size=65", | |
4412 | .result = REJECT, | |
4413 | .prog_type = BPF_PROG_TYPE_TRACEPOINT, | |
4414 | }, | |
4415 | { | |
4416 | "helper access to variable memory: stack, JMP, no max check", | |
4417 | .insns = { | |
4418 | BPF_MOV64_REG(BPF_REG_1, BPF_REG_10), | |
4419 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, -64), | |
4420 | BPF_MOV64_IMM(BPF_REG_2, 16), | |
4421 | BPF_STX_MEM(BPF_DW, BPF_REG_1, BPF_REG_2, -128), | |
4422 | BPF_LDX_MEM(BPF_DW, BPF_REG_2, BPF_REG_1, -128), | |
4423 | BPF_MOV64_IMM(BPF_REG_4, 0), | |
4424 | BPF_JMP_REG(BPF_JGE, BPF_REG_4, BPF_REG_2, 2), | |
4425 | BPF_MOV64_IMM(BPF_REG_3, 0), | |
4426 | BPF_EMIT_CALL(BPF_FUNC_probe_read), | |
4427 | BPF_MOV64_IMM(BPF_REG_0, 0), | |
4428 | BPF_EXIT_INSN(), | |
4429 | }, | |
4430 | .errstr = "R2 unbounded memory access", | |
4431 | .result = REJECT, | |
4432 | .prog_type = BPF_PROG_TYPE_TRACEPOINT, | |
4433 | }, | |
4434 | { | |
4435 | "helper access to variable memory: stack, JMP, no min check", | |
4436 | .insns = { | |
4437 | BPF_MOV64_REG(BPF_REG_1, BPF_REG_10), | |
4438 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, -64), | |
4439 | BPF_MOV64_IMM(BPF_REG_2, 16), | |
4440 | BPF_STX_MEM(BPF_DW, BPF_REG_1, BPF_REG_2, -128), | |
4441 | BPF_LDX_MEM(BPF_DW, BPF_REG_2, BPF_REG_1, -128), | |
4442 | BPF_JMP_IMM(BPF_JGT, BPF_REG_2, 64, 3), | |
4443 | BPF_MOV64_IMM(BPF_REG_3, 0), | |
4444 | BPF_EMIT_CALL(BPF_FUNC_probe_read), | |
4445 | BPF_MOV64_IMM(BPF_REG_0, 0), | |
4446 | BPF_EXIT_INSN(), | |
4447 | }, | |
4448 | .errstr = "invalid stack type R1 off=-64 access_size=0", | |
4449 | .result = REJECT, | |
4450 | .prog_type = BPF_PROG_TYPE_TRACEPOINT, | |
4451 | }, | |
4452 | { | |
4453 | "helper access to variable memory: stack, JMP (signed), no min check", | |
4454 | .insns = { | |
4455 | BPF_MOV64_REG(BPF_REG_1, BPF_REG_10), | |
4456 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, -64), | |
4457 | BPF_MOV64_IMM(BPF_REG_2, 16), | |
4458 | BPF_STX_MEM(BPF_DW, BPF_REG_1, BPF_REG_2, -128), | |
4459 | BPF_LDX_MEM(BPF_DW, BPF_REG_2, BPF_REG_1, -128), | |
4460 | BPF_JMP_IMM(BPF_JSGT, BPF_REG_2, 64, 3), | |
4461 | BPF_MOV64_IMM(BPF_REG_3, 0), | |
4462 | BPF_EMIT_CALL(BPF_FUNC_probe_read), | |
4463 | BPF_MOV64_IMM(BPF_REG_0, 0), | |
4464 | BPF_EXIT_INSN(), | |
4465 | }, | |
4466 | .errstr = "R2 min value is negative", | |
4467 | .result = REJECT, | |
4468 | .prog_type = BPF_PROG_TYPE_TRACEPOINT, | |
4469 | }, | |
4470 | { | |
4471 | "helper access to variable memory: map, JMP, correct bounds", | |
4472 | .insns = { | |
4473 | BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), | |
4474 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8), | |
4475 | BPF_ST_MEM(BPF_DW, BPF_REG_2, 0, 0), | |
4476 | BPF_LD_MAP_FD(BPF_REG_1, 0), | |
4477 | BPF_EMIT_CALL(BPF_FUNC_map_lookup_elem), | |
4478 | BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 10), | |
4479 | BPF_MOV64_REG(BPF_REG_1, BPF_REG_0), | |
4480 | BPF_MOV64_IMM(BPF_REG_2, sizeof(struct test_val)), | |
4481 | BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_2, -128), | |
4482 | BPF_LDX_MEM(BPF_DW, BPF_REG_2, BPF_REG_10, -128), | |
4483 | BPF_JMP_IMM(BPF_JSGT, BPF_REG_2, | |
4484 | sizeof(struct test_val), 4), | |
4485 | BPF_MOV64_IMM(BPF_REG_4, 0), | |
4486 | BPF_JMP_REG(BPF_JGE, BPF_REG_4, BPF_REG_2, 2), | |
4487 | BPF_MOV64_IMM(BPF_REG_3, 0), | |
4488 | BPF_EMIT_CALL(BPF_FUNC_probe_read), | |
4489 | BPF_MOV64_IMM(BPF_REG_0, 0), | |
4490 | BPF_EXIT_INSN(), | |
4491 | }, | |
4492 | .fixup_map2 = { 3 }, | |
4493 | .result = ACCEPT, | |
4494 | .prog_type = BPF_PROG_TYPE_TRACEPOINT, | |
4495 | }, | |
4496 | { | |
4497 | "helper access to variable memory: map, JMP, wrong max", | |
4498 | .insns = { | |
4499 | BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), | |
4500 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8), | |
4501 | BPF_ST_MEM(BPF_DW, BPF_REG_2, 0, 0), | |
4502 | BPF_LD_MAP_FD(BPF_REG_1, 0), | |
4503 | BPF_EMIT_CALL(BPF_FUNC_map_lookup_elem), | |
4504 | BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 10), | |
4505 | BPF_MOV64_REG(BPF_REG_1, BPF_REG_0), | |
4506 | BPF_MOV64_IMM(BPF_REG_2, sizeof(struct test_val)), | |
4507 | BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_2, -128), | |
4508 | BPF_LDX_MEM(BPF_DW, BPF_REG_2, BPF_REG_10, -128), | |
4509 | BPF_JMP_IMM(BPF_JSGT, BPF_REG_2, | |
4510 | sizeof(struct test_val) + 1, 4), | |
4511 | BPF_MOV64_IMM(BPF_REG_4, 0), | |
4512 | BPF_JMP_REG(BPF_JGE, BPF_REG_4, BPF_REG_2, 2), | |
4513 | BPF_MOV64_IMM(BPF_REG_3, 0), | |
4514 | BPF_EMIT_CALL(BPF_FUNC_probe_read), | |
4515 | BPF_MOV64_IMM(BPF_REG_0, 0), | |
4516 | BPF_EXIT_INSN(), | |
4517 | }, | |
4518 | .fixup_map2 = { 3 }, | |
4519 | .errstr = "invalid access to map value, value_size=48 off=0 size=49", | |
4520 | .result = REJECT, | |
4521 | .prog_type = BPF_PROG_TYPE_TRACEPOINT, | |
4522 | }, | |
4523 | { | |
4524 | "helper access to variable memory: map adjusted, JMP, correct bounds", | |
4525 | .insns = { | |
4526 | BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), | |
4527 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8), | |
4528 | BPF_ST_MEM(BPF_DW, BPF_REG_2, 0, 0), | |
4529 | BPF_LD_MAP_FD(BPF_REG_1, 0), | |
4530 | BPF_EMIT_CALL(BPF_FUNC_map_lookup_elem), | |
4531 | BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 11), | |
4532 | BPF_MOV64_REG(BPF_REG_1, BPF_REG_0), | |
4533 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, 20), | |
4534 | BPF_MOV64_IMM(BPF_REG_2, sizeof(struct test_val)), | |
4535 | BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_2, -128), | |
4536 | BPF_LDX_MEM(BPF_DW, BPF_REG_2, BPF_REG_10, -128), | |
4537 | BPF_JMP_IMM(BPF_JSGT, BPF_REG_2, | |
4538 | sizeof(struct test_val) - 20, 4), | |
4539 | BPF_MOV64_IMM(BPF_REG_4, 0), | |
4540 | BPF_JMP_REG(BPF_JGE, BPF_REG_4, BPF_REG_2, 2), | |
4541 | BPF_MOV64_IMM(BPF_REG_3, 0), | |
4542 | BPF_EMIT_CALL(BPF_FUNC_probe_read), | |
4543 | BPF_MOV64_IMM(BPF_REG_0, 0), | |
4544 | BPF_EXIT_INSN(), | |
4545 | }, | |
4546 | .fixup_map2 = { 3 }, | |
4547 | .result = ACCEPT, | |
4548 | .prog_type = BPF_PROG_TYPE_TRACEPOINT, | |
4549 | }, | |
4550 | { | |
4551 | "helper access to variable memory: map adjusted, JMP, wrong max", | |
4552 | .insns = { | |
4553 | BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), | |
4554 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8), | |
4555 | BPF_ST_MEM(BPF_DW, BPF_REG_2, 0, 0), | |
4556 | BPF_LD_MAP_FD(BPF_REG_1, 0), | |
4557 | BPF_EMIT_CALL(BPF_FUNC_map_lookup_elem), | |
4558 | BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 11), | |
4559 | BPF_MOV64_REG(BPF_REG_1, BPF_REG_0), | |
4560 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, 20), | |
4561 | BPF_MOV64_IMM(BPF_REG_2, sizeof(struct test_val)), | |
4562 | BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_2, -128), | |
4563 | BPF_LDX_MEM(BPF_DW, BPF_REG_2, BPF_REG_10, -128), | |
4564 | BPF_JMP_IMM(BPF_JSGT, BPF_REG_2, | |
4565 | sizeof(struct test_val) - 19, 4), | |
4566 | BPF_MOV64_IMM(BPF_REG_4, 0), | |
4567 | BPF_JMP_REG(BPF_JGE, BPF_REG_4, BPF_REG_2, 2), | |
4568 | BPF_MOV64_IMM(BPF_REG_3, 0), | |
4569 | BPF_EMIT_CALL(BPF_FUNC_probe_read), | |
4570 | BPF_MOV64_IMM(BPF_REG_0, 0), | |
4571 | BPF_EXIT_INSN(), | |
4572 | }, | |
4573 | .fixup_map2 = { 3 }, | |
4574 | .errstr = "R1 min value is outside of the array range", | |
4575 | .result = REJECT, | |
4576 | .prog_type = BPF_PROG_TYPE_TRACEPOINT, | |
4577 | }, | |
4578 | { | |
4579 | "helper access to variable memory: size > 0 not allowed on NULL", | |
4580 | .insns = { | |
4581 | BPF_MOV64_IMM(BPF_REG_1, 0), | |
4582 | BPF_MOV64_IMM(BPF_REG_2, 0), | |
3fadc801 DB |
4583 | BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_2, -128), |
4584 | BPF_LDX_MEM(BPF_DW, BPF_REG_2, BPF_REG_10, -128), | |
06c1c049 GB |
4585 | BPF_ALU64_IMM(BPF_AND, BPF_REG_2, 64), |
4586 | BPF_MOV64_IMM(BPF_REG_3, 0), | |
4587 | BPF_MOV64_IMM(BPF_REG_4, 0), | |
4588 | BPF_MOV64_IMM(BPF_REG_5, 0), | |
4589 | BPF_EMIT_CALL(BPF_FUNC_csum_diff), | |
4590 | BPF_EXIT_INSN(), | |
4591 | }, | |
4592 | .errstr = "R1 type=imm expected=fp", | |
4593 | .result = REJECT, | |
4594 | .prog_type = BPF_PROG_TYPE_SCHED_CLS, | |
4595 | }, | |
4596 | { | |
4597 | "helper access to variable memory: size = 0 not allowed on != NULL", | |
4598 | .insns = { | |
4599 | BPF_MOV64_REG(BPF_REG_1, BPF_REG_10), | |
4600 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, -8), | |
4601 | BPF_MOV64_IMM(BPF_REG_2, 0), | |
4602 | BPF_STX_MEM(BPF_DW, BPF_REG_1, BPF_REG_2, 0), | |
4603 | BPF_ALU64_IMM(BPF_AND, BPF_REG_2, 8), | |
4604 | BPF_MOV64_IMM(BPF_REG_3, 0), | |
4605 | BPF_MOV64_IMM(BPF_REG_4, 0), | |
4606 | BPF_MOV64_IMM(BPF_REG_5, 0), | |
4607 | BPF_EMIT_CALL(BPF_FUNC_csum_diff), | |
4608 | BPF_EXIT_INSN(), | |
4609 | }, | |
4610 | .errstr = "invalid stack type R1 off=-8 access_size=0", | |
4611 | .result = REJECT, | |
4612 | .prog_type = BPF_PROG_TYPE_SCHED_CLS, | |
4613 | }, | |
4614 | { | |
4615 | "helper access to variable memory: 8 bytes leak", | |
4616 | .insns = { | |
4617 | BPF_MOV64_REG(BPF_REG_1, BPF_REG_10), | |
4618 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, -64), | |
4619 | BPF_MOV64_IMM(BPF_REG_0, 0), | |
4620 | BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_0, -64), | |
4621 | BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_0, -56), | |
4622 | BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_0, -48), | |
4623 | BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_0, -40), | |
4624 | BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_0, -24), | |
4625 | BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_0, -16), | |
4626 | BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_0, -8), | |
4627 | BPF_MOV64_IMM(BPF_REG_2, 0), | |
3fadc801 DB |
4628 | BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_2, -128), |
4629 | BPF_LDX_MEM(BPF_DW, BPF_REG_2, BPF_REG_10, -128), | |
06c1c049 GB |
4630 | BPF_ALU64_IMM(BPF_AND, BPF_REG_2, 63), |
4631 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, 1), | |
4632 | BPF_MOV64_IMM(BPF_REG_3, 0), | |
4633 | BPF_EMIT_CALL(BPF_FUNC_probe_read), | |
4634 | BPF_LDX_MEM(BPF_DW, BPF_REG_1, BPF_REG_10, -16), | |
4635 | BPF_EXIT_INSN(), | |
4636 | }, | |
4637 | .errstr = "invalid indirect read from stack off -64+32 size 64", | |
4638 | .result = REJECT, | |
4639 | .prog_type = BPF_PROG_TYPE_TRACEPOINT, | |
4640 | }, | |
4641 | { | |
4642 | "helper access to variable memory: 8 bytes no leak (init memory)", | |
4643 | .insns = { | |
4644 | BPF_MOV64_REG(BPF_REG_1, BPF_REG_10), | |
4645 | BPF_MOV64_IMM(BPF_REG_0, 0), | |
4646 | BPF_MOV64_IMM(BPF_REG_0, 0), | |
4647 | BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_0, -64), | |
4648 | BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_0, -56), | |
4649 | BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_0, -48), | |
4650 | BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_0, -40), | |
4651 | BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_0, -32), | |
4652 | BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_0, -24), | |
4653 | BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_0, -16), | |
4654 | BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_0, -8), | |
4655 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, -64), | |
4656 | BPF_MOV64_IMM(BPF_REG_2, 0), | |
4657 | BPF_ALU64_IMM(BPF_AND, BPF_REG_2, 32), | |
4658 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, 32), | |
4659 | BPF_MOV64_IMM(BPF_REG_3, 0), | |
4660 | BPF_EMIT_CALL(BPF_FUNC_probe_read), | |
4661 | BPF_LDX_MEM(BPF_DW, BPF_REG_1, BPF_REG_10, -16), | |
4662 | BPF_EXIT_INSN(), | |
4663 | }, | |
4664 | .result = ACCEPT, | |
4665 | .prog_type = BPF_PROG_TYPE_TRACEPOINT, | |
4666 | }, | |
29200c19 JB |
4667 | { |
4668 | "invalid and of negative number", | |
4669 | .insns = { | |
4670 | BPF_ST_MEM(BPF_DW, BPF_REG_10, -8, 0), | |
4671 | BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), | |
4672 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8), | |
4673 | BPF_LD_MAP_FD(BPF_REG_1, 0), | |
4674 | BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, | |
4675 | BPF_FUNC_map_lookup_elem), | |
4676 | BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 4), | |
4677 | BPF_MOV64_IMM(BPF_REG_1, 6), | |
4678 | BPF_ALU64_IMM(BPF_AND, BPF_REG_1, -4), | |
4679 | BPF_ALU64_IMM(BPF_LSH, BPF_REG_1, 2), | |
4680 | BPF_ALU64_REG(BPF_ADD, BPF_REG_0, BPF_REG_1), | |
4681 | BPF_ST_MEM(BPF_DW, BPF_REG_0, 0, | |
4682 | offsetof(struct test_val, foo)), | |
4683 | BPF_EXIT_INSN(), | |
4684 | }, | |
4685 | .fixup_map2 = { 3 }, | |
4686 | .errstr_unpriv = "R0 pointer arithmetic prohibited", | |
4687 | .errstr = "R0 min value is negative, either use unsigned index or do a if (index >=0) check.", | |
4688 | .result = REJECT, | |
4689 | .result_unpriv = REJECT, | |
02ea80b1 | 4690 | .flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS, |
29200c19 JB |
4691 | }, |
4692 | { | |
4693 | "invalid range check", | |
4694 | .insns = { | |
4695 | BPF_ST_MEM(BPF_DW, BPF_REG_10, -8, 0), | |
4696 | BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), | |
4697 | BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8), | |
4698 | BPF_LD_MAP_FD(BPF_REG_1, 0), | |
4699 | BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, | |
4700 | BPF_FUNC_map_lookup_elem), | |
4701 | BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 12), | |
4702 | BPF_LDX_MEM(BPF_W, BPF_REG_1, BPF_REG_0, 0), | |
4703 | BPF_MOV64_IMM(BPF_REG_9, 1), | |
4704 | BPF_ALU32_IMM(BPF_MOD, BPF_REG_1, 2), | |
4705 | BPF_ALU32_IMM(BPF_ADD, BPF_REG_1, 1), | |
4706 | BPF_ALU32_REG(BPF_AND, BPF_REG_9, BPF_REG_1), | |
4707 | BPF_ALU32_IMM(BPF_ADD, BPF_REG_9, 1), | |
4708 | BPF_ALU32_IMM(BPF_RSH, BPF_REG_9, 1), | |
4709 | BPF_MOV32_IMM(BPF_REG_3, 1), | |
4710 | BPF_ALU32_REG(BPF_SUB, BPF_REG_3, BPF_REG_9), | |
4711 | BPF_ALU32_IMM(BPF_MUL, BPF_REG_3, 0x10000000), | |
4712 | BPF_ALU64_REG(BPF_ADD, BPF_REG_0, BPF_REG_3), | |
4713 | BPF_STX_MEM(BPF_W, BPF_REG_0, BPF_REG_3, 0), | |
4714 | BPF_MOV64_REG(BPF_REG_0, 0), | |
4715 | BPF_EXIT_INSN(), | |
4716 | }, | |
4717 | .fixup_map2 = { 3 }, | |
4718 | .errstr_unpriv = "R0 pointer arithmetic prohibited", | |
4719 | .errstr = "R0 min value is negative, either use unsigned index or do a if (index >=0) check.", | |
4720 | .result = REJECT, | |
4721 | .result_unpriv = REJECT, | |
02ea80b1 | 4722 | .flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS, |
29200c19 | 4723 | } |
3c731eba AS |
4724 | }; |
4725 | ||
5aa5bd14 | 4726 | static int probe_filter_length(const struct bpf_insn *fp) |
3c731eba | 4727 | { |
5aa5bd14 | 4728 | int len; |
3c731eba AS |
4729 | |
4730 | for (len = MAX_INSNS - 1; len > 0; --len) | |
4731 | if (fp[len].code != 0 || fp[len].imm != 0) | |
4732 | break; | |
3c731eba AS |
4733 | return len + 1; |
4734 | } | |
4735 | ||
5aa5bd14 | 4736 | static int create_map(uint32_t size_value, uint32_t max_elem) |
3c731eba | 4737 | { |
5aa5bd14 | 4738 | int fd; |
3c731eba | 4739 | |
f4874d01 | 4740 | fd = bpf_create_map(BPF_MAP_TYPE_HASH, sizeof(long long), |
5aa5bd14 DB |
4741 | size_value, max_elem, BPF_F_NO_PREALLOC); |
4742 | if (fd < 0) | |
4743 | printf("Failed to create hash map '%s'!\n", strerror(errno)); | |
bf508877 | 4744 | |
5aa5bd14 | 4745 | return fd; |
bf508877 AS |
4746 | } |
4747 | ||
4748 | static int create_prog_array(void) | |
4749 | { | |
5aa5bd14 | 4750 | int fd; |
bf508877 | 4751 | |
f4874d01 | 4752 | fd = bpf_create_map(BPF_MAP_TYPE_PROG_ARRAY, sizeof(int), |
5aa5bd14 DB |
4753 | sizeof(int), 4, 0); |
4754 | if (fd < 0) | |
4755 | printf("Failed to create prog array '%s'!\n", strerror(errno)); | |
3c731eba | 4756 | |
5aa5bd14 | 4757 | return fd; |
3c731eba AS |
4758 | } |
4759 | ||
5aa5bd14 DB |
4760 | static char bpf_vlog[32768]; |
4761 | ||
4762 | static void do_test_fixup(struct bpf_test *test, struct bpf_insn *prog, | |
4763 | int *fd_f1, int *fd_f2, int *fd_f3) | |
3c731eba | 4764 | { |
5aa5bd14 DB |
4765 | int *fixup_map1 = test->fixup_map1; |
4766 | int *fixup_map2 = test->fixup_map2; | |
4767 | int *fixup_prog = test->fixup_prog; | |
3c731eba | 4768 | |
5aa5bd14 DB |
4769 | /* Allocating HTs with 1 elem is fine here, since we only test |
4770 | * for verifier and not do a runtime lookup, so the only thing | |
4771 | * that really matters is value size in this case. | |
4772 | */ | |
4773 | if (*fixup_map1) { | |
4774 | *fd_f1 = create_map(sizeof(long long), 1); | |
4775 | do { | |
4776 | prog[*fixup_map1].imm = *fd_f1; | |
4777 | fixup_map1++; | |
4778 | } while (*fixup_map1); | |
4779 | } | |
3c731eba | 4780 | |
5aa5bd14 DB |
4781 | if (*fixup_map2) { |
4782 | *fd_f2 = create_map(sizeof(struct test_val), 1); | |
4783 | do { | |
4784 | prog[*fixup_map2].imm = *fd_f2; | |
4785 | fixup_map2++; | |
4786 | } while (*fixup_map2); | |
4787 | } | |
3c731eba | 4788 | |
5aa5bd14 DB |
4789 | if (*fixup_prog) { |
4790 | *fd_f3 = create_prog_array(); | |
4791 | do { | |
4792 | prog[*fixup_prog].imm = *fd_f3; | |
4793 | fixup_prog++; | |
4794 | } while (*fixup_prog); | |
4795 | } | |
4796 | } | |
bf508877 | 4797 | |
5aa5bd14 DB |
4798 | static void do_test_single(struct bpf_test *test, bool unpriv, |
4799 | int *passes, int *errors) | |
4800 | { | |
02ea80b1 | 4801 | int fd_prog, expected_ret, reject_from_alignment; |
5aa5bd14 DB |
4802 | struct bpf_insn *prog = test->insns; |
4803 | int prog_len = probe_filter_length(prog); | |
4804 | int prog_type = test->prog_type; | |
4805 | int fd_f1 = -1, fd_f2 = -1, fd_f3 = -1; | |
5aa5bd14 | 4806 | const char *expected_err; |
48461135 | 4807 | |
5aa5bd14 | 4808 | do_test_fixup(test, prog, &fd_f1, &fd_f2, &fd_f3); |
3c731eba | 4809 | |
2ee89fb9 MS |
4810 | fd_prog = bpf_load_program(prog_type ? : BPF_PROG_TYPE_SOCKET_FILTER, |
4811 | prog, prog_len, "GPL", 0, bpf_vlog, | |
4812 | sizeof(bpf_vlog)); | |
3c731eba | 4813 | |
5aa5bd14 DB |
4814 | expected_ret = unpriv && test->result_unpriv != UNDEF ? |
4815 | test->result_unpriv : test->result; | |
4816 | expected_err = unpriv && test->errstr_unpriv ? | |
4817 | test->errstr_unpriv : test->errstr; | |
02ea80b1 DB |
4818 | |
4819 | reject_from_alignment = fd_prog < 0 && | |
4820 | (test->flags & F_NEEDS_EFFICIENT_UNALIGNED_ACCESS) && | |
4821 | strstr(bpf_vlog, "Unknown alignment."); | |
4822 | #ifdef CONFIG_HAVE_EFFICIENT_UNALIGNED_ACCESS | |
4823 | if (reject_from_alignment) { | |
4824 | printf("FAIL\nFailed due to alignment despite having efficient unaligned access: '%s'!\n", | |
4825 | strerror(errno)); | |
4826 | goto fail_log; | |
4827 | } | |
4828 | #endif | |
5aa5bd14 | 4829 | if (expected_ret == ACCEPT) { |
02ea80b1 | 4830 | if (fd_prog < 0 && !reject_from_alignment) { |
5aa5bd14 DB |
4831 | printf("FAIL\nFailed to load prog '%s'!\n", |
4832 | strerror(errno)); | |
4833 | goto fail_log; | |
4834 | } | |
4835 | } else { | |
4836 | if (fd_prog >= 0) { | |
4837 | printf("FAIL\nUnexpected success to load!\n"); | |
4838 | goto fail_log; | |
4839 | } | |
02ea80b1 | 4840 | if (!strstr(bpf_vlog, expected_err) && !reject_from_alignment) { |
5aa5bd14 DB |
4841 | printf("FAIL\nUnexpected error message!\n"); |
4842 | goto fail_log; | |
4843 | } | |
4844 | } | |
bf508877 | 4845 | |
5aa5bd14 | 4846 | (*passes)++; |
02ea80b1 DB |
4847 | printf("OK%s\n", reject_from_alignment ? |
4848 | " (NOTE: reject due to unknown alignment)" : ""); | |
5aa5bd14 DB |
4849 | close_fds: |
4850 | close(fd_prog); | |
4851 | close(fd_f1); | |
4852 | close(fd_f2); | |
4853 | close(fd_f3); | |
4854 | sched_yield(); | |
4855 | return; | |
4856 | fail_log: | |
4857 | (*errors)++; | |
4858 | printf("%s", bpf_vlog); | |
4859 | goto close_fds; | |
4860 | } | |
bf508877 | 4861 | |
d02d8986 MS |
4862 | static bool is_admin(void) |
4863 | { | |
4864 | cap_t caps; | |
4865 | cap_flag_value_t sysadmin = CAP_CLEAR; | |
4866 | const cap_value_t cap_val = CAP_SYS_ADMIN; | |
4867 | ||
1da8ac7c | 4868 | #ifdef CAP_IS_SUPPORTED |
d02d8986 MS |
4869 | if (!CAP_IS_SUPPORTED(CAP_SETFCAP)) { |
4870 | perror("cap_get_flag"); | |
4871 | return false; | |
4872 | } | |
1da8ac7c | 4873 | #endif |
d02d8986 MS |
4874 | caps = cap_get_proc(); |
4875 | if (!caps) { | |
4876 | perror("cap_get_proc"); | |
4877 | return false; | |
4878 | } | |
4879 | if (cap_get_flag(caps, cap_val, CAP_EFFECTIVE, &sysadmin)) | |
4880 | perror("cap_get_flag"); | |
4881 | if (cap_free(caps)) | |
4882 | perror("cap_free"); | |
4883 | return (sysadmin == CAP_SET); | |
4884 | } | |
4885 | ||
4886 | static int set_admin(bool admin) | |
4887 | { | |
4888 | cap_t caps; | |
4889 | const cap_value_t cap_val = CAP_SYS_ADMIN; | |
4890 | int ret = -1; | |
4891 | ||
4892 | caps = cap_get_proc(); | |
4893 | if (!caps) { | |
4894 | perror("cap_get_proc"); | |
4895 | return -1; | |
4896 | } | |
4897 | if (cap_set_flag(caps, CAP_EFFECTIVE, 1, &cap_val, | |
4898 | admin ? CAP_SET : CAP_CLEAR)) { | |
4899 | perror("cap_set_flag"); | |
4900 | goto out; | |
4901 | } | |
4902 | if (cap_set_proc(caps)) { | |
4903 | perror("cap_set_proc"); | |
4904 | goto out; | |
4905 | } | |
4906 | ret = 0; | |
4907 | out: | |
4908 | if (cap_free(caps)) | |
4909 | perror("cap_free"); | |
4910 | return ret; | |
4911 | } | |
4912 | ||
5aa5bd14 DB |
4913 | static int do_test(bool unpriv, unsigned int from, unsigned int to) |
4914 | { | |
4915 | int i, passes = 0, errors = 0; | |
3c731eba | 4916 | |
5aa5bd14 DB |
4917 | for (i = from; i < to; i++) { |
4918 | struct bpf_test *test = &tests[i]; | |
3c731eba | 4919 | |
5aa5bd14 DB |
4920 | /* Program types that are not supported by non-root we |
4921 | * skip right away. | |
4922 | */ | |
d02d8986 MS |
4923 | if (!test->prog_type) { |
4924 | if (!unpriv) | |
4925 | set_admin(false); | |
4926 | printf("#%d/u %s ", i, test->descr); | |
4927 | do_test_single(test, true, &passes, &errors); | |
4928 | if (!unpriv) | |
4929 | set_admin(true); | |
4930 | } | |
5aa5bd14 | 4931 | |
d02d8986 MS |
4932 | if (!unpriv) { |
4933 | printf("#%d/p %s ", i, test->descr); | |
4934 | do_test_single(test, false, &passes, &errors); | |
4935 | } | |
3c731eba AS |
4936 | } |
4937 | ||
5aa5bd14 DB |
4938 | printf("Summary: %d PASSED, %d FAILED\n", passes, errors); |
4939 | return errors ? -errors : 0; | |
3c731eba AS |
4940 | } |
4941 | ||
5aa5bd14 | 4942 | int main(int argc, char **argv) |
3c731eba | 4943 | { |
5aa5bd14 DB |
4944 | struct rlimit rinf = { RLIM_INFINITY, RLIM_INFINITY }; |
4945 | struct rlimit rlim = { 1 << 20, 1 << 20 }; | |
4946 | unsigned int from = 0, to = ARRAY_SIZE(tests); | |
d02d8986 | 4947 | bool unpriv = !is_admin(); |
5aa5bd14 DB |
4948 | |
4949 | if (argc == 3) { | |
4950 | unsigned int l = atoi(argv[argc - 2]); | |
4951 | unsigned int u = atoi(argv[argc - 1]); | |
4952 | ||
4953 | if (l < to && u < to) { | |
4954 | from = l; | |
4955 | to = u + 1; | |
4956 | } | |
4957 | } else if (argc == 2) { | |
4958 | unsigned int t = atoi(argv[argc - 1]); | |
4959 | ||
4960 | if (t < to) { | |
4961 | from = t; | |
4962 | to = t + 1; | |
4963 | } | |
4964 | } | |
bf508877 | 4965 | |
5aa5bd14 DB |
4966 | setrlimit(RLIMIT_MEMLOCK, unpriv ? &rlim : &rinf); |
4967 | return do_test(unpriv, from, to); | |
3c731eba | 4968 | } |