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#include <limits.h> 37 38#include "tst_test.h" 39#include "lapi/syscalls.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 49static char buffer[TEST_BLOCK_SIZE]; 50static int notvalidfd = -1; 51static int filefd; 52static int pipes[2]; 53static struct iovec ivc; 54 55static struct tcase { 56 int *fd; 57 const struct iovec *iov; 58 unsigned long nr_segs; 59 int exp_errno; 60} tcases[] = { 61 { ¬validfd, &ivc, 1, EBADF }, 62 { &filefd, &ivc, 1, EBADF }, 63 { &pipes[1], &ivc, IOV_MAX + 1, EINVAL }, 64}; 65 66static void setup(void) 67{ 68 if (tst_fs_type(".") == TST_NFS_MAGIC) { 69 tst_brk(TCONF, "Cannot do splice() " 70 "on a file located on an NFS filesystem"); 71 } 72 73 filefd = SAFE_OPEN(TESTFILE, O_WRONLY | O_CREAT, 0644); 74 75 SAFE_PIPE(pipes); 76 77 ivc.iov_base = buffer; 78 ivc.iov_len = TEST_BLOCK_SIZE; 79} 80 81static void vmsplice_verify(unsigned int n) 82{ 83 struct tcase *tc = &tcases[n]; 84 85 TEST(vmsplice(*(tc->fd), tc->iov, tc->nr_segs, 0)); 86 87 if (TEST_RETURN != -1) { 88 tst_res(TFAIL, "vmsplice() returned %ld, " 89 "expected -1, errno:%d", TEST_RETURN, 90 tc->exp_errno); 91 return; 92 } 93 94 if (TEST_ERRNO != tc->exp_errno) { 95 tst_res(TFAIL | TTERRNO, 96 "vmsplice() failed unexpectedly; expected: %d - %s", 97 tc->exp_errno, tst_strerrno(tc->exp_errno)); 98 return; 99 } 100 101 tst_res(TPASS | TTERRNO, "vmsplice() failed as expected"); 102} 103 104static void cleanup(void) 105{ 106 if (filefd > 0) 107 SAFE_CLOSE(filefd); 108 109 if (pipes[0] > 0) 110 SAFE_CLOSE(pipes[0]); 111 112 if (pipes[1] > 0) 113 SAFE_CLOSE(pipes[1]); 114} 115 116static struct tst_test test = { 117 .setup = setup, 118 .cleanup = cleanup, 119 .test = vmsplice_verify, 120 .tcnt = ARRAY_SIZE(tcases), 121 .needs_tmpdir = 1, 122 .min_kver = "2.6.17", 123}; 124