1 // SPDX-License-Identifier: GPL-2.0 2 #include "bpf/libbpf.h" 3 #include <test_progs.h> 4 #include <network_helpers.h> 5 6 #include "cb_refs.skel.h" 7 8 static char log_buf[1024 * 1024]; 9 10 struct { 11 const char *prog_name; 12 const char *err_msg; 13 } cb_refs_tests[] = { 14 { "underflow_prog", "must point to scalar, or struct with scalar" }, 15 { "leak_prog", "Possibly NULL pointer passed to helper arg2" }, 16 { "nested_cb", "Unreleased reference id=4 alloc_insn=2" }, /* alloc_insn=2{4,5} */ 17 { "non_cb_transfer_ref", "Unreleased reference id=4 alloc_insn=1" }, /* alloc_insn=1{1,2} */ 18 }; 19 20 void test_cb_refs(void) 21 { 22 LIBBPF_OPTS(bpf_object_open_opts, opts, .kernel_log_buf = log_buf, 23 .kernel_log_size = sizeof(log_buf), 24 .kernel_log_level = 1); 25 struct bpf_program *prog; 26 struct cb_refs *skel; 27 int i; 28 29 for (i = 0; i < ARRAY_SIZE(cb_refs_tests); i++) { 30 LIBBPF_OPTS(bpf_test_run_opts, run_opts, 31 .data_in = &pkt_v4, 32 .data_size_in = sizeof(pkt_v4), 33 .repeat = 1, 34 ); 35 skel = cb_refs__open_opts(&opts); 36 if (!ASSERT_OK_PTR(skel, "cb_refs__open_and_load")) 37 return; 38 prog = bpf_object__find_program_by_name(skel->obj, cb_refs_tests[i].prog_name); 39 bpf_program__set_autoload(prog, true); 40 if (!ASSERT_ERR(cb_refs__load(skel), "cb_refs__load")) 41 bpf_prog_test_run_opts(bpf_program__fd(prog), &run_opts); 42 if (!ASSERT_OK_PTR(strstr(log_buf, cb_refs_tests[i].err_msg), "expected error message")) { 43 fprintf(stderr, "Expected: %s\n", cb_refs_tests[i].err_msg); 44 fprintf(stderr, "Verifier: %s\n", log_buf); 45 } 46 cb_refs__destroy(skel); 47 } 48 } 49