// SPDX-License-Identifier: GPL-2.0 #include <stdio.h> #include <unistd.h> #include <bpf/libbpf.h> #include "trace_helpers.h" int main(int ac, char **argv) { struct bpf_link *link = NULL; struct bpf_program *prog; struct bpf_object *obj; char filename[256]; FILE *f; snprintf(filename, sizeof(filename), "%s_kern.o", argv[0]); obj = bpf_object__open_file(filename, NULL); if (libbpf_get_error(obj)) { fprintf(stderr, "ERROR: opening BPF object file failed\n"); return 0; } prog = bpf_object__find_program_by_name(obj, "bpf_prog1"); if (!prog) { fprintf(stderr, "ERROR: finding a prog in obj file failed\n"); goto cleanup; } /* load BPF program */ if (bpf_object__load(obj)) { fprintf(stderr, "ERROR: loading BPF object file failed\n"); goto cleanup; } link = bpf_program__attach(prog); if (libbpf_get_error(link)) { fprintf(stderr, "ERROR: bpf_program__attach failed\n"); link = NULL; goto cleanup; } f = popen("taskset 1 ping -c5 localhost", "r"); (void) f; read_trace_pipe(); cleanup: bpf_link__destroy(link); bpf_object__close(obj); return 0; }