tjh.dev
Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
os
linux
1/* SPDX-License-Identifier: GPL-2.0 */
2#ifndef __TEST_PROGS_H
3#define __TEST_PROGS_H
4
5#include <stdio.h>
6#include <unistd.h>
7#include <errno.h>
8#include <string.h>
9#include <assert.h>
10#include <stdlib.h>
11#include <stdarg.h>
12#include <time.h>
13#include <signal.h>
14
15#include <linux/types.h>
16typedef __u16 __sum16;
17#include <arpa/inet.h>
18#include <linux/if_ether.h>
19#include <linux/if_packet.h>
20#include <linux/ip.h>
21#include <linux/ipv6.h>
22#include <linux/filter.h>
23#include <linux/perf_event.h>
24#include <linux/socket.h>
25#include <linux/unistd.h>
26
27#include <sys/ioctl.h>
28#include <sys/wait.h>
29#include <sys/types.h>
30#include <sys/time.h>
31#include <sys/param.h>
32#include <fcntl.h>
33#include <pthread.h>
34#include <linux/bpf.h>
35#include <linux/err.h>
36#include <bpf/bpf.h>
37#include <bpf/libbpf.h>
38
39#include "test_iptunnel_common.h"
40#include "bpf_util.h"
41#include <bpf/bpf_endian.h>
42#include "trace_helpers.h"
43#include "testing_helpers.h"
44
45enum verbosity {
46 VERBOSE_NONE,
47 VERBOSE_NORMAL,
48 VERBOSE_VERY,
49 VERBOSE_SUPER,
50};
51
52struct test_filter {
53 char *name;
54 char **subtests;
55 int subtest_cnt;
56};
57
58struct test_filter_set {
59 struct test_filter *tests;
60 int cnt;
61};
62
63struct test_selector {
64 struct test_filter_set whitelist;
65 struct test_filter_set blacklist;
66 bool *num_set;
67 int num_set_len;
68};
69
70struct subtest_state {
71 char *name;
72 size_t log_cnt;
73 char *log_buf;
74 int error_cnt;
75 bool skipped;
76 bool filtered;
77 bool should_tmon;
78
79 FILE *stdout_saved;
80};
81
82struct test_state {
83 bool tested;
84 bool force_log;
85
86 int error_cnt;
87 int skip_cnt;
88 int sub_succ_cnt;
89
90 struct subtest_state *subtest_states;
91 int subtest_num;
92
93 size_t log_cnt;
94 char *log_buf;
95
96 FILE *stdout_saved;
97};
98
99extern int env_verbosity;
100
101struct test_env {
102 struct test_selector test_selector;
103 struct test_selector subtest_selector;
104 struct test_selector tmon_selector;
105 bool verifier_stats;
106 bool debug;
107 enum verbosity verbosity;
108
109 bool jit_enabled;
110 bool has_testmod;
111 bool get_test_cnt;
112 bool list_test_names;
113
114 struct prog_test_def *test; /* current running test */
115 struct test_state *test_state; /* current running test state */
116 struct subtest_state *subtest_state; /* current running subtest state */
117
118 FILE *stdout_saved;
119 FILE *stderr_saved;
120 int nr_cpus;
121 FILE *json;
122
123 int succ_cnt; /* successful tests */
124 int sub_succ_cnt; /* successful sub-tests */
125 int fail_cnt; /* total failed tests + sub-tests */
126 int skip_cnt; /* skipped tests */
127
128 int saved_netns_fd;
129 int workers; /* number of worker process */
130 int worker_id; /* id number of current worker, main process is -1 */
131 pid_t *worker_pids; /* array of worker pids */
132 int *worker_socks; /* array of worker socks */
133 int *worker_current_test; /* array of current running test for each worker */
134
135 pthread_t main_thread;
136 int secs_till_notify;
137 int secs_till_kill;
138 timer_t watchdog; /* watch for stalled tests/subtests */
139 enum { WD_NOTIFY, WD_KILL } watchdog_state;
140};
141
142#define MAX_LOG_TRUNK_SIZE 8192
143#define MAX_SUBTEST_NAME 1024
144enum msg_type {
145 MSG_DO_TEST = 0,
146 MSG_TEST_DONE = 1,
147 MSG_TEST_LOG = 2,
148 MSG_SUBTEST_DONE = 3,
149 MSG_EXIT = 255,
150};
151struct msg {
152 enum msg_type type;
153 union {
154 struct {
155 int num;
156 } do_test;
157 struct {
158 int num;
159 int sub_succ_cnt;
160 int error_cnt;
161 int skip_cnt;
162 bool have_log;
163 int subtest_num;
164 } test_done;
165 struct {
166 char log_buf[MAX_LOG_TRUNK_SIZE + 1];
167 bool is_last;
168 } test_log;
169 struct {
170 int num;
171 char name[MAX_SUBTEST_NAME + 1];
172 int error_cnt;
173 bool skipped;
174 bool filtered;
175 bool have_log;
176 } subtest_done;
177 };
178};
179
180extern struct test_env env;
181
182void test__force_log(void);
183bool test__start_subtest(const char *name);
184void test__end_subtest(void);
185void test__skip(void);
186void test__fail(void);
187int test__join_cgroup(const char *path);
188void hexdump(const char *prefix, const void *buf, size_t len);
189
190#define PRINT_FAIL(format...) \
191 ({ \
192 test__fail(); \
193 fprintf(stdout, "%s:FAIL:%d ", __func__, __LINE__); \
194 fprintf(stdout, ##format); \
195 })
196
197#define _CHECK(condition, tag, duration, format...) ({ \
198 int __ret = !!(condition); \
199 int __save_errno = errno; \
200 if (__ret) { \
201 test__fail(); \
202 fprintf(stdout, "%s:FAIL:%s ", __func__, tag); \
203 fprintf(stdout, ##format); \
204 } else { \
205 fprintf(stdout, "%s:PASS:%s %d nsec\n", \
206 __func__, tag, duration); \
207 } \
208 errno = __save_errno; \
209 __ret; \
210})
211
212#define CHECK_FAIL(condition) ({ \
213 int __ret = !!(condition); \
214 int __save_errno = errno; \
215 if (__ret) { \
216 test__fail(); \
217 fprintf(stdout, "%s:FAIL:%d\n", __func__, __LINE__); \
218 } \
219 errno = __save_errno; \
220 __ret; \
221})
222
223#define CHECK(condition, tag, format...) \
224 _CHECK(condition, tag, duration, format)
225#define CHECK_ATTR(condition, tag, format...) \
226 _CHECK(condition, tag, tattr.duration, format)
227
228#define ASSERT_FAIL(fmt, args...) ({ \
229 static int duration = 0; \
230 CHECK(false, "", fmt"\n", ##args); \
231 false; \
232})
233
234#define ASSERT_TRUE(actual, name) ({ \
235 static int duration = 0; \
236 bool ___ok = (actual); \
237 CHECK(!___ok, (name), "unexpected %s: got FALSE\n", (name)); \
238 ___ok; \
239})
240
241#define ASSERT_FALSE(actual, name) ({ \
242 static int duration = 0; \
243 bool ___ok = !(actual); \
244 CHECK(!___ok, (name), "unexpected %s: got TRUE\n", (name)); \
245 ___ok; \
246})
247
248#define ASSERT_EQ(actual, expected, name) ({ \
249 static int duration = 0; \
250 typeof(actual) ___act = (actual); \
251 typeof(expected) ___exp = (expected); \
252 bool ___ok = ___act == ___exp; \
253 CHECK(!___ok, (name), \
254 "unexpected %s: actual %lld != expected %lld\n", \
255 (name), (long long)(___act), (long long)(___exp)); \
256 ___ok; \
257})
258
259#define ASSERT_NEQ(actual, expected, name) ({ \
260 static int duration = 0; \
261 typeof(actual) ___act = (actual); \
262 typeof(expected) ___exp = (expected); \
263 bool ___ok = ___act != ___exp; \
264 CHECK(!___ok, (name), \
265 "unexpected %s: actual %lld == expected %lld\n", \
266 (name), (long long)(___act), (long long)(___exp)); \
267 ___ok; \
268})
269
270#define ASSERT_LT(actual, expected, name) ({ \
271 static int duration = 0; \
272 typeof(actual) ___act = (actual); \
273 typeof(expected) ___exp = (expected); \
274 bool ___ok = ___act < ___exp; \
275 CHECK(!___ok, (name), \
276 "unexpected %s: actual %lld >= expected %lld\n", \
277 (name), (long long)(___act), (long long)(___exp)); \
278 ___ok; \
279})
280
281#define ASSERT_LE(actual, expected, name) ({ \
282 static int duration = 0; \
283 typeof(actual) ___act = (actual); \
284 typeof(expected) ___exp = (expected); \
285 bool ___ok = ___act <= ___exp; \
286 CHECK(!___ok, (name), \
287 "unexpected %s: actual %lld > expected %lld\n", \
288 (name), (long long)(___act), (long long)(___exp)); \
289 ___ok; \
290})
291
292#define ASSERT_GT(actual, expected, name) ({ \
293 static int duration = 0; \
294 typeof(actual) ___act = (actual); \
295 typeof(expected) ___exp = (expected); \
296 bool ___ok = ___act > ___exp; \
297 CHECK(!___ok, (name), \
298 "unexpected %s: actual %lld <= expected %lld\n", \
299 (name), (long long)(___act), (long long)(___exp)); \
300 ___ok; \
301})
302
303#define ASSERT_GE(actual, expected, name) ({ \
304 static int duration = 0; \
305 typeof(actual) ___act = (actual); \
306 typeof(expected) ___exp = (expected); \
307 bool ___ok = ___act >= ___exp; \
308 CHECK(!___ok, (name), \
309 "unexpected %s: actual %lld < expected %lld\n", \
310 (name), (long long)(___act), (long long)(___exp)); \
311 ___ok; \
312})
313
314#define ASSERT_STREQ(actual, expected, name) ({ \
315 static int duration = 0; \
316 const char *___act = actual; \
317 const char *___exp = expected; \
318 bool ___ok = strcmp(___act, ___exp) == 0; \
319 CHECK(!___ok, (name), \
320 "unexpected %s: actual '%s' != expected '%s'\n", \
321 (name), ___act, ___exp); \
322 ___ok; \
323})
324
325#define ASSERT_STRNEQ(actual, expected, len, name) ({ \
326 static int duration = 0; \
327 const char *___act = actual; \
328 const char *___exp = expected; \
329 int ___len = len; \
330 bool ___ok = strncmp(___act, ___exp, ___len) == 0; \
331 CHECK(!___ok, (name), \
332 "unexpected %s: actual '%.*s' != expected '%.*s'\n", \
333 (name), ___len, ___act, ___len, ___exp); \
334 ___ok; \
335})
336
337#define ASSERT_HAS_SUBSTR(str, substr, name) ({ \
338 static int duration = 0; \
339 const char *___str = str; \
340 const char *___substr = substr; \
341 bool ___ok = strstr(___str, ___substr) != NULL; \
342 CHECK(!___ok, (name), \
343 "unexpected %s: '%s' is not a substring of '%s'\n", \
344 (name), ___substr, ___str); \
345 ___ok; \
346})
347
348#define ASSERT_MEMEQ(actual, expected, len, name) ({ \
349 static int duration = 0; \
350 const void *__act = actual; \
351 const void *__exp = expected; \
352 int __len = len; \
353 bool ___ok = memcmp(__act, __exp, __len) == 0; \
354 CHECK(!___ok, (name), "unexpected memory mismatch\n"); \
355 fprintf(stdout, "actual:\n"); \
356 hexdump("\t", __act, __len); \
357 fprintf(stdout, "expected:\n"); \
358 hexdump("\t", __exp, __len); \
359 ___ok; \
360})
361
362#define ASSERT_OK(res, name) ({ \
363 static int duration = 0; \
364 long long ___res = (res); \
365 bool ___ok = ___res == 0; \
366 CHECK(!___ok, (name), "unexpected error: %lld (errno %d)\n", \
367 ___res, errno); \
368 ___ok; \
369})
370
371#define ASSERT_ERR(res, name) ({ \
372 static int duration = 0; \
373 long long ___res = (res); \
374 bool ___ok = ___res < 0; \
375 CHECK(!___ok, (name), "unexpected success: %lld\n", ___res); \
376 ___ok; \
377})
378
379#define ASSERT_NULL(ptr, name) ({ \
380 static int duration = 0; \
381 const void *___res = (ptr); \
382 bool ___ok = !___res; \
383 CHECK(!___ok, (name), "unexpected pointer: %p\n", ___res); \
384 ___ok; \
385})
386
387#define ASSERT_OK_PTR(ptr, name) ({ \
388 static int duration = 0; \
389 const void *___res = (ptr); \
390 int ___err = libbpf_get_error(___res); \
391 bool ___ok = ___err == 0; \
392 CHECK(!___ok, (name), "unexpected error: %d\n", ___err); \
393 ___ok; \
394})
395
396#define ASSERT_ERR_PTR(ptr, name) ({ \
397 static int duration = 0; \
398 const void *___res = (ptr); \
399 int ___err = libbpf_get_error(___res); \
400 bool ___ok = ___err != 0; \
401 CHECK(!___ok, (name), "unexpected pointer: %p\n", ___res); \
402 ___ok; \
403})
404
405#define ASSERT_OK_FD(fd, name) ({ \
406 static int duration = 0; \
407 int ___fd = (fd); \
408 bool ___ok = ___fd >= 0; \
409 CHECK(!___ok, (name), "unexpected fd: %d (errno %d)\n", \
410 ___fd, errno); \
411 ___ok; \
412})
413
414#define ASSERT_ERR_FD(fd, name) ({ \
415 static int duration = 0; \
416 int ___fd = (fd); \
417 bool ___ok = ___fd < 0; \
418 CHECK(!___ok, (name), "unexpected fd: %d\n", ___fd); \
419 ___ok; \
420})
421
422#define SYS(goto_label, fmt, ...) \
423 ({ \
424 char cmd[1024]; \
425 snprintf(cmd, sizeof(cmd), fmt, ##__VA_ARGS__); \
426 if (!ASSERT_OK(system(cmd), cmd)) \
427 goto goto_label; \
428 })
429
430#define ALL_TO_DEV_NULL " >/dev/null 2>&1"
431
432#define SYS_NOFAIL(fmt, ...) \
433 ({ \
434 char cmd[1024]; \
435 int n; \
436 n = snprintf(cmd, sizeof(cmd), fmt, ##__VA_ARGS__); \
437 if (n < sizeof(cmd) && sizeof(cmd) - n >= sizeof(ALL_TO_DEV_NULL)) \
438 strcat(cmd, ALL_TO_DEV_NULL); \
439 system(cmd); \
440 })
441
442int start_libbpf_log_capture(void);
443char *stop_libbpf_log_capture(void);
444
445static inline __u64 ptr_to_u64(const void *ptr)
446{
447 return (__u64) (unsigned long) ptr;
448}
449
450static inline void *u64_to_ptr(__u64 ptr)
451{
452 return (void *) (unsigned long) ptr;
453}
454
455int bpf_find_map(const char *test, struct bpf_object *obj, const char *name);
456int compare_map_keys(int map1_fd, int map2_fd);
457int compare_stack_ips(int smap_fd, int amap_fd, int stack_trace_len);
458int trigger_module_test_read(int read_sz);
459int trigger_module_test_write(int write_sz);
460int write_sysctl(const char *sysctl, const char *value);
461int get_bpf_max_tramp_links_from(struct btf *btf);
462int get_bpf_max_tramp_links(void);
463
464struct netns_obj;
465struct netns_obj *netns_new(const char *name, bool open);
466void netns_free(struct netns_obj *netns);
467
468#ifdef __x86_64__
469#define SYS_NANOSLEEP_KPROBE_NAME "__x64_sys_nanosleep"
470#elif defined(__s390x__)
471#define SYS_NANOSLEEP_KPROBE_NAME "__s390x_sys_nanosleep"
472#elif defined(__aarch64__)
473#define SYS_NANOSLEEP_KPROBE_NAME "__arm64_sys_nanosleep"
474#elif defined(__riscv)
475#define SYS_NANOSLEEP_KPROBE_NAME "__riscv_sys_nanosleep"
476#else
477#define SYS_NANOSLEEP_KPROBE_NAME "sys_nanosleep"
478#endif
479
480#define BPF_TESTMOD_TEST_FILE "/sys/kernel/bpf_testmod"
481
482typedef int (*pre_execution_cb)(struct bpf_object *obj);
483
484struct test_loader {
485 char *log_buf;
486 size_t log_buf_sz;
487 pre_execution_cb pre_execution_cb;
488
489 struct bpf_object *obj;
490};
491
492static inline void test_loader__set_pre_execution_cb(struct test_loader *tester,
493 pre_execution_cb cb)
494{
495 tester->pre_execution_cb = cb;
496}
497
498typedef const void *(*skel_elf_bytes_fn)(size_t *sz);
499
500extern void test_loader__run_subtests(struct test_loader *tester,
501 const char *skel_name,
502 skel_elf_bytes_fn elf_bytes_factory);
503
504extern void test_loader_fini(struct test_loader *tester);
505
506#define RUN_TESTS(skel) ({ \
507 struct test_loader tester = {}; \
508 \
509 test_loader__run_subtests(&tester, #skel, skel##__elf_bytes); \
510 test_loader_fini(&tester); \
511})
512
513#endif /* __TEST_PROGS_H */