Xing Gu | 8dc8c1c | 2014-06-23 19:13:37 +0800 | [diff] [blame] | 1 | /* |
| 2 | * Copyright (c) 2014 Fujitsu Ltd. |
| 3 | * Author: Xing Gu <gux.fnst@cn.fujitsu.com> |
| 4 | * |
| 5 | * This program is free software; you can redistribute it and/or modify it |
| 6 | * under the terms of version 2 of the GNU General Public License as |
| 7 | * published by the Free Software Foundation. |
| 8 | * |
| 9 | * This program is distributed in the hope that it would be useful, but |
| 10 | * WITHOUT ANY WARRANTY; without even the implied warranty of |
| 11 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. |
| 12 | * |
| 13 | * You should have received a copy of the GNU General Public License along |
| 14 | * with this program; if not, write the Free Software Foundation, Inc., |
| 15 | * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. |
| 16 | */ |
| 17 | /* |
| 18 | * Description: |
| 19 | * Verify that, |
| 20 | * 1) vmsplice() returns -1 and sets errno to EBADF if fd |
| 21 | * is not valid. |
| 22 | * 2) vmsplice() returns -1 and sets errno to EBADF if fd |
| 23 | * doesn't refer to a pipe. |
| 24 | * 3) vmsplice() returns -1 and sets errno to EINVAL if |
| 25 | * nr_segs is greater than IOV_MAX. |
| 26 | */ |
| 27 | |
| 28 | #define _GNU_SOURCE |
| 29 | |
| 30 | #include <sys/types.h> |
| 31 | #include <sys/stat.h> |
| 32 | #include <fcntl.h> |
| 33 | #include <unistd.h> |
| 34 | #include <fcntl.h> |
| 35 | #include <sys/uio.h> |
| 36 | |
| 37 | #include "test.h" |
Xing Gu | 8dc8c1c | 2014-06-23 19:13:37 +0800 | [diff] [blame] | 38 | #include "safe_macros.h" |
| 39 | #include "linux_syscall_numbers.h" |
| 40 | #include "tst_fs_type.h" |
| 41 | #include "lapi/fcntl.h" |
| 42 | |
| 43 | #define TESTFILE "testfile" |
| 44 | |
| 45 | #define TEST_BLOCK_SIZE 128 |
| 46 | |
| 47 | static char buffer[TEST_BLOCK_SIZE]; |
| 48 | static int notvalidfd = -1; |
| 49 | static int filefd; |
| 50 | static int pipes[2]; |
| 51 | static struct iovec ivc; |
| 52 | |
| 53 | static struct test_case_t { |
| 54 | int *fd; |
| 55 | const struct iovec *iov; |
| 56 | unsigned long nr_segs; |
| 57 | int exp_errno; |
| 58 | } test_cases[] = { |
| 59 | { ¬validfd, &ivc, 1, EBADF }, |
| 60 | { &filefd, &ivc, 1, EBADF }, |
| 61 | { &pipes[1], &ivc, IOV_MAX + 1, EINVAL }, |
| 62 | }; |
| 63 | |
| 64 | static void setup(void); |
| 65 | static void cleanup(void); |
| 66 | static void vmsplice_verify(const struct test_case_t *); |
| 67 | |
| 68 | char *TCID = "vmsplice02"; |
| 69 | int TST_TOTAL = ARRAY_SIZE(test_cases); |
Xing Gu | 8dc8c1c | 2014-06-23 19:13:37 +0800 | [diff] [blame] | 70 | |
| 71 | int main(int ac, char **av) |
| 72 | { |
| 73 | int i, lc; |
| 74 | const char *msg; |
| 75 | |
| 76 | msg = parse_opts(ac, av, NULL, NULL); |
| 77 | if (msg != NULL) |
| 78 | tst_brkm(TBROK, NULL, "OPTION PARSING ERROR - %s", msg); |
| 79 | |
| 80 | setup(); |
| 81 | |
Xing Gu | 8dc8c1c | 2014-06-23 19:13:37 +0800 | [diff] [blame] | 82 | for (lc = 0; TEST_LOOPING(lc); lc++) { |
| 83 | tst_count = 0; |
| 84 | |
| 85 | for (i = 0; i < TST_TOTAL; i++) |
| 86 | vmsplice_verify(&test_cases[i]); |
| 87 | } |
| 88 | |
| 89 | cleanup(); |
| 90 | tst_exit(); |
| 91 | } |
| 92 | |
| 93 | static void setup(void) |
| 94 | { |
| 95 | if ((tst_kvercmp(2, 6, 17)) < 0) { |
| 96 | tst_brkm(TCONF, cleanup, "This test can only run on " |
| 97 | "kernels that are 2.6.17 or higher"); |
| 98 | } |
| 99 | |
| 100 | tst_sig(NOFORK, DEF_HANDLER, cleanup); |
| 101 | |
| 102 | TEST_PAUSE; |
| 103 | |
| 104 | tst_tmpdir(); |
| 105 | |
| 106 | if (tst_fs_type(cleanup, ".") == TST_NFS_MAGIC) { |
| 107 | tst_brkm(TCONF, cleanup, "Cannot do splice() " |
| 108 | "on a file located on an NFS filesystem"); |
| 109 | } |
| 110 | |
| 111 | filefd = SAFE_OPEN(cleanup, TESTFILE, |
| 112 | O_WRONLY | O_CREAT, 0644); |
| 113 | |
| 114 | SAFE_PIPE(cleanup, pipes); |
| 115 | |
| 116 | ivc.iov_base = buffer; |
| 117 | ivc.iov_len = TEST_BLOCK_SIZE; |
| 118 | } |
| 119 | |
| 120 | static void vmsplice_verify(const struct test_case_t *tc) |
| 121 | { |
| 122 | TEST(vmsplice(*(tc->fd), tc->iov, tc->nr_segs, 0)); |
| 123 | |
| 124 | if (TEST_RETURN != -1) { |
| 125 | tst_resm(TFAIL, "vmsplice() returned %ld, " |
| 126 | "expected -1, errno:%d", TEST_RETURN, |
| 127 | tc->exp_errno); |
| 128 | return; |
| 129 | } |
| 130 | |
Xing Gu | 8dc8c1c | 2014-06-23 19:13:37 +0800 | [diff] [blame] | 131 | if (TEST_ERRNO == tc->exp_errno) { |
| 132 | tst_resm(TPASS | TTERRNO, "vmsplice() failed as expected"); |
| 133 | } else { |
| 134 | tst_resm(TFAIL | TTERRNO, |
| 135 | "vmsplice() failed unexpectedly; expected: %d - %s", |
| 136 | tc->exp_errno, strerror(tc->exp_errno)); |
| 137 | } |
| 138 | } |
| 139 | |
| 140 | static void cleanup(void) |
| 141 | { |
Xing Gu | 8dc8c1c | 2014-06-23 19:13:37 +0800 | [diff] [blame] | 142 | if (filefd && close(filefd) < 0) |
| 143 | tst_resm(TWARN | TERRNO, "close filefd failed"); |
| 144 | |
| 145 | if (pipes[0] && close(pipes[0]) < 0) |
| 146 | tst_resm(TWARN | TERRNO, "close pipes[0] failed"); |
| 147 | |
| 148 | if (pipes[1] && close(pipes[1]) < 0) |
| 149 | tst_resm(TWARN | TERRNO, "close pipes[1] failed"); |
| 150 | |
| 151 | tst_rmdir(); |
| 152 | } |