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"
38 #include "safe_macros.h"
39 #include "linux_syscall_numbers.h"
40 #include "lapi/fcntl.h"
41 #include "lapi/vmsplice.h"
42
43 #include "limits_ltp.h"
44
45 #define TESTFILE "testfile"
46
47 #define TEST_BLOCK_SIZE 128
48
49 static char buffer[TEST_BLOCK_SIZE];
50 static int notvalidfd = -1;
51 static int filefd;
52 static int pipes[2];
53 static struct iovec ivc;
54
55 static struct test_case_t {
56 int *fd;
57 const struct iovec *iov;
58 unsigned long nr_segs;
59 int exp_errno;
60 } test_cases[] = {
61 { ¬validfd, &ivc, 1, EBADF },
62 { &filefd, &ivc, 1, EBADF },
63 { &pipes[1], &ivc, IOV_MAX + 1, EINVAL },
64 };
65
66 static void setup(void);
67 static void cleanup(void);
68 static void vmsplice_verify(const struct test_case_t *);
69
70 char *TCID = "vmsplice02";
71 int TST_TOTAL = ARRAY_SIZE(test_cases);
72
main(int ac,char ** av)73 int main(int ac, char **av)
74 {
75 int i, lc;
76
77 tst_parse_opts(ac, av, NULL, NULL);
78
79 setup();
80
81 for (lc = 0; TEST_LOOPING(lc); lc++) {
82 tst_count = 0;
83
84 for (i = 0; i < TST_TOTAL; i++)
85 vmsplice_verify(&test_cases[i]);
86 }
87
88 cleanup();
89 tst_exit();
90 }
91
setup(void)92 static void setup(void)
93 {
94 if ((tst_kvercmp(2, 6, 17)) < 0) {
95 tst_brkm(TCONF, cleanup, "This test can only run on "
96 "kernels that are 2.6.17 or higher");
97 }
98
99 tst_sig(NOFORK, DEF_HANDLER, cleanup);
100
101 TEST_PAUSE;
102
103 tst_tmpdir();
104
105 if (tst_fs_type(cleanup, ".") == TST_NFS_MAGIC) {
106 tst_brkm(TCONF, cleanup, "Cannot do splice() "
107 "on a file located on an NFS filesystem");
108 }
109
110 filefd = SAFE_OPEN(cleanup, TESTFILE,
111 O_WRONLY | O_CREAT, 0644);
112
113 SAFE_PIPE(cleanup, pipes);
114
115 ivc.iov_base = buffer;
116 ivc.iov_len = TEST_BLOCK_SIZE;
117 }
118
vmsplice_verify(const struct test_case_t * tc)119 static void vmsplice_verify(const struct test_case_t *tc)
120 {
121 TEST(vmsplice(*(tc->fd), tc->iov, tc->nr_segs, 0));
122
123 if (TEST_RETURN != -1) {
124 tst_resm(TFAIL, "vmsplice() returned %ld, "
125 "expected -1, errno:%d", TEST_RETURN,
126 tc->exp_errno);
127 return;
128 }
129
130 if (TEST_ERRNO == tc->exp_errno) {
131 tst_resm(TPASS | TTERRNO, "vmsplice() failed as expected");
132 } else {
133 tst_resm(TFAIL | TTERRNO,
134 "vmsplice() failed unexpectedly; expected: %d - %s",
135 tc->exp_errno, strerror(tc->exp_errno));
136 }
137 }
138
cleanup(void)139 static void cleanup(void)
140 {
141 if (filefd && close(filefd) < 0)
142 tst_resm(TWARN | TERRNO, "close filefd failed");
143
144 if (pipes[0] && close(pipes[0]) < 0)
145 tst_resm(TWARN | TERRNO, "close pipes[0] failed");
146
147 if (pipes[1] && close(pipes[1]) < 0)
148 tst_resm(TWARN | TERRNO, "close pipes[1] failed");
149
150 tst_rmdir();
151 }
152