1 // SPDX-License-Identifier: GPL-2.0 2 3 #define _GNU_SOURCE 4 #include <test_progs.h> 5 #include <network_helpers.h> 6 #include <sys/stat.h> 7 #include <linux/sched.h> 8 #include <sys/syscall.h> 9 10 #include "test_pkt_md_access.skel.h" 11 #include "test_trace_ext.skel.h" 12 #include "test_trace_ext_tracing.skel.h" 13 14 static __u32 duration; 15 16 void test_trace_ext(void) 17 { 18 struct test_pkt_md_access *skel_pkt = NULL; 19 struct test_trace_ext_tracing *skel_trace = NULL; 20 struct test_trace_ext_tracing__bss *bss_trace; 21 struct test_trace_ext *skel_ext = NULL; 22 struct test_trace_ext__bss *bss_ext; 23 int err, pkt_fd, ext_fd; 24 struct bpf_program *prog; 25 char buf[100]; 26 __u64 len; 27 LIBBPF_OPTS(bpf_test_run_opts, topts, 28 .data_in = &pkt_v4, 29 .data_size_in = sizeof(pkt_v4), 30 .repeat = 1, 31 ); 32 33 /* open/load/attach test_pkt_md_access */ 34 skel_pkt = test_pkt_md_access__open_and_load(); 35 if (CHECK(!skel_pkt, "setup", "classifier/test_pkt_md_access open failed\n")) 36 goto cleanup; 37 38 err = test_pkt_md_access__attach(skel_pkt); 39 if (CHECK(err, "setup", "classifier/test_pkt_md_access attach failed: %d\n", err)) 40 goto cleanup; 41 42 prog = skel_pkt->progs.test_pkt_md_access; 43 pkt_fd = bpf_program__fd(prog); 44 45 /* open extension */ 46 skel_ext = test_trace_ext__open(); 47 if (CHECK(!skel_ext, "setup", "freplace/test_pkt_md_access open failed\n")) 48 goto cleanup; 49 50 /* set extension's attach target - test_pkt_md_access */ 51 prog = skel_ext->progs.test_pkt_md_access_new; 52 bpf_program__set_attach_target(prog, pkt_fd, "test_pkt_md_access"); 53 54 /* load/attach extension */ 55 err = test_trace_ext__load(skel_ext); 56 if (CHECK(err, "setup", "freplace/test_pkt_md_access load failed\n")) { 57 libbpf_strerror(err, buf, sizeof(buf)); 58 fprintf(stderr, "%s\n", buf); 59 goto cleanup; 60 } 61 62 err = test_trace_ext__attach(skel_ext); 63 if (CHECK(err, "setup", "freplace/test_pkt_md_access attach failed: %d\n", err)) 64 goto cleanup; 65 66 prog = skel_ext->progs.test_pkt_md_access_new; 67 ext_fd = bpf_program__fd(prog); 68 69 /* open tracing */ 70 skel_trace = test_trace_ext_tracing__open(); 71 if (CHECK(!skel_trace, "setup", "tracing/test_pkt_md_access_new open failed\n")) 72 goto cleanup; 73 74 /* set tracing's attach target - fentry */ 75 prog = skel_trace->progs.fentry; 76 bpf_program__set_attach_target(prog, ext_fd, "test_pkt_md_access_new"); 77 78 /* set tracing's attach target - fexit */ 79 prog = skel_trace->progs.fexit; 80 bpf_program__set_attach_target(prog, ext_fd, "test_pkt_md_access_new"); 81 82 /* load/attach tracing */ 83 err = test_trace_ext_tracing__load(skel_trace); 84 if (!ASSERT_OK(err, "tracing/test_pkt_md_access_new load")) { 85 libbpf_strerror(err, buf, sizeof(buf)); 86 fprintf(stderr, "%s\n", buf); 87 goto cleanup; 88 } 89 90 err = test_trace_ext_tracing__attach(skel_trace); 91 if (!ASSERT_OK(err, "tracing/test_pkt_md_access_new attach")) 92 goto cleanup; 93 94 /* trigger the test */ 95 err = bpf_prog_test_run_opts(pkt_fd, &topts); 96 ASSERT_OK(err, "test_run_opts err"); 97 ASSERT_OK(topts.retval, "test_run_opts retval"); 98 99 bss_ext = skel_ext->bss; 100 bss_trace = skel_trace->bss; 101 102 len = bss_ext->ext_called; 103 104 ASSERT_NEQ(bss_ext->ext_called, 0, 105 "failed to trigger freplace/test_pkt_md_access"); 106 ASSERT_EQ(bss_trace->fentry_called, len, 107 "failed to trigger fentry/test_pkt_md_access_new"); 108 ASSERT_EQ(bss_trace->fexit_called, len, 109 "failed to trigger fexit/test_pkt_md_access_new"); 110 111 cleanup: 112 test_trace_ext_tracing__destroy(skel_trace); 113 test_trace_ext__destroy(skel_ext); 114 test_pkt_md_access__destroy(skel_pkt); 115 } 116