1 /* $NetBSD: t_mountd.c,v 1.3 2010/11/07 17:51:18 jmmv Exp $ */ 2 3 /*- 4 * Copyright (c) 2010 The NetBSD Foundation, Inc. 5 * 6 * Redistribution and use in source and binary forms, with or without 7 * modification, are permitted provided that the following conditions 8 * are met: 9 * 1. Redistributions of source code must retain the above copyright 10 * notice, this list of conditions and the following disclaimer. 11 * 2. Redistributions in binary form must reproduce the above copyright 12 * notice, this list of conditions and the following disclaimer in the 13 * documentation and/or other materials provided with the distribution. 14 * 15 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS 16 * OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED 17 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE 18 * DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 19 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 20 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR 21 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 22 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 23 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 24 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 25 * SUCH DAMAGE. 26 */ 27 28 #include <sys/types.h> 29 #include <sys/mount.h> 30 31 #include <atf-c.h> 32 #include <errno.h> 33 #include <fcntl.h> 34 #include <pthread.h> 35 #include <stdio.h> 36 #include <stdlib.h> 37 #include <unistd.h> 38 #include <string.h> 39 40 #include <rump/rump.h> 41 #include <rump/rump_syscalls.h> 42 43 #include "../../h_macros.h" 44 #include "../common/h_fsmacros.h" 45 46 ATF_TC(mountdhup); 47 ATF_TC_HEAD(mountdhup, tc) 48 { 49 50 atf_tc_set_md_var(tc, "descr", "test for service interrupt while " 51 "mountd handles SIGHUP"); 52 } 53 54 static volatile int quit; 55 56 static void * 57 wrkwrkwrk(void *unused) 58 { 59 int fd, fail; 60 61 rump_sys_chdir(FSTEST_MNTNAME); 62 while (!quit) { 63 fd = rump_sys_open("file", O_RDWR | O_CREAT); 64 if (fd == -1) { 65 if (errno == EACCES) { 66 fail++; 67 break; 68 } 69 } 70 rump_sys_close(fd); 71 if (rump_sys_unlink("file") == -1) { 72 if (errno == EACCES) { 73 fail++; 74 break; 75 } 76 } 77 } 78 rump_sys_chdir("/"); 79 quit = 1; 80 81 return fail ? &fail : NULL; 82 } 83 84 ATF_TC_BODY(mountdhup, tc) 85 { 86 pthread_t pt; 87 struct nfstestargs *nfsargs; 88 void *voidargs; 89 int attempts; 90 void *fail; 91 92 FSTEST_CONSTRUCTOR(tc, nfs, voidargs); 93 nfsargs = voidargs; 94 95 pthread_create(&pt, NULL, wrkwrkwrk, NULL); 96 for (attempts = 100; attempts && !quit; attempts--) { 97 usleep(100000); 98 kill(nfsargs->ta_childpid, SIGHUP); 99 } 100 quit = 1; 101 pthread_join(pt, &fail); 102 103 FSTEST_DESTRUCTOR(tc, nfs, voidargs); 104 105 atf_tc_expect_fail("PR kern/5844"); 106 if (fail) 107 atf_tc_fail("op failed with EACCES"); 108 else 109 atf_tc_fail("race did not trigger this time"); 110 } 111 112 ATF_TP_ADD_TCS(tp) 113 { 114 115 ATF_TP_ADD_TC(tp, mountdhup); 116 117 return atf_no_error(); 118 } 119