1 // SPDX-License-Identifier: GPL-2.0 2 /* Copyright (c) 2019 Facebook */ 3 #include <test_progs.h> 4 #include "fexit_test.skel.h" 5 6 static int fexit_test(struct fexit_test *fexit_skel) 7 { 8 int err, prog_fd, i; 9 __u32 duration = 0, retval; 10 struct bpf_link *link; 11 __u64 *result; 12 13 err = fexit_test__attach(fexit_skel); 14 if (!ASSERT_OK(err, "fexit_attach")) 15 return err; 16 17 /* Check that already linked program can't be attached again. */ 18 link = bpf_program__attach(fexit_skel->progs.test1); 19 if (!ASSERT_ERR_PTR(link, "fexit_attach_link")) 20 return -1; 21 22 prog_fd = bpf_program__fd(fexit_skel->progs.test1); 23 err = bpf_prog_test_run(prog_fd, 1, NULL, 0, 24 NULL, NULL, &retval, &duration); 25 ASSERT_OK(err, "test_run"); 26 ASSERT_EQ(retval, 0, "test_run"); 27 28 result = (__u64 *)fexit_skel->bss; 29 for (i = 0; i < sizeof(*fexit_skel->bss) / sizeof(__u64); i++) { 30 if (!ASSERT_EQ(result[i], 1, "fexit_result")) 31 return -1; 32 } 33 34 fexit_test__detach(fexit_skel); 35 36 /* zero results for re-attach test */ 37 memset(fexit_skel->bss, 0, sizeof(*fexit_skel->bss)); 38 return 0; 39 } 40 41 void test_fexit_test(void) 42 { 43 struct fexit_test *fexit_skel = NULL; 44 int err; 45 46 fexit_skel = fexit_test__open_and_load(); 47 if (!ASSERT_OK_PTR(fexit_skel, "fexit_skel_load")) 48 goto cleanup; 49 50 err = fexit_test(fexit_skel); 51 if (!ASSERT_OK(err, "fexit_first_attach")) 52 goto cleanup; 53 54 err = fexit_test(fexit_skel); 55 ASSERT_OK(err, "fexit_second_attach"); 56 57 cleanup: 58 fexit_test__destroy(fexit_skel); 59 } 60