tools/testing/selftests/bpf/testing_helpers.h

   1 /* SPDX-License-Identifier: (LGPL-2.1 OR BSD-2-Clause) */
   2 /* Copyright (C) 2020 Facebook, Inc. */
   3
   4 #ifndef __TESTING_HELPERS_H
   5 #define __TESTING_HELPERS_H
   6
   7 #include <stdbool.h>
   8 #include <bpf/bpf.h>
   9 #include <bpf/libbpf.h>
  10 #include <time.h>
  11
  12 #define __TO_STR(x) #x
  13 #define TO_STR(x) __TO_STR(x)
  14
  15 int parse_num_list(const char *s, bool **set, int *set_len);
  16 __u32 link_info_prog_id(const struct bpf_link *link, struct bpf_link_info *info);
  17 int bpf_prog_test_load(const char *file, enum bpf_prog_type type,
  18                        struct bpf_object **pobj, int *prog_fd);
  19 int bpf_test_load_program(enum bpf_prog_type type, const struct bpf_insn *insns,
  20                           size_t insns_cnt, const char *license,
  21                           __u32 kern_version, char *log_buf,
  22                           size_t log_buf_sz);
  23
  24 /*
  25  * below function is exported for testing in prog_test test
  26  */
  27 struct test_filter_set;
  28 int parse_test_list(const char *s,
  29                     struct test_filter_set *test_set,
  30                     bool is_glob_pattern);
  31 int parse_test_list_file(const char *path,
  32                          struct test_filter_set *test_set,
  33                          bool is_glob_pattern);
  34
  35 __u64 read_perf_max_sample_freq(void);
  36 int load_bpf_testmod(bool verbose);
  37 int unload_bpf_testmod(bool verbose);
  38 int kern_sync_rcu(void);
  39 int finit_module(int fd, const char *param_values, int flags);
  40 int delete_module(const char *name, int flags);
  41 int load_module(const char *path, bool verbose);
  42 int unload_module(const char *name, bool verbose);
  43
  44 static inline __u64 get_time_ns(void)
  45 {
  46         struct timespec t;
  47
  48         clock_gettime(CLOCK_MONOTONIC, &t);
  49
  50         return (u64)t.tv_sec * 1000000000 + t.tv_nsec;
  51 }
  52
  53 struct bpf_insn;
  54 /* Request BPF program instructions after all rewrites are applied,
  55  * e.g. verifier.c:convert_ctx_access() is done.
  56  */
  57 int get_xlated_program(int fd_prog, struct bpf_insn **buf, __u32 *cnt);
  58 int testing_prog_flags(void);
  59 bool is_jit_enabled(void);
  60
  61 #endif /* __TESTING_HELPERS_H */