1 /* $NetBSD: t_modcmd.c,v 1.3 2009/11/06 15:25:52 pooka Exp $ */ 2 3 /* 4 * Copyright (c) 2009 The NetBSD Foundation, Inc. 5 * All rights reserved. 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions 9 * are met: 10 * 1. Redistributions of source code must retain the above copyright 11 * notice, this list of conditions and the following disclaimer. 12 * 2. Redistributions in binary form must reproduce the above copyright 13 * notice, this list of conditions and the following disclaimer in the 14 * documentation and/or other materials provided with the distribution. 15 * 16 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND 17 * CONTRIBUTORS ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, 18 * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF 19 * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 20 * IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS BE LIABLE FOR ANY 21 * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 22 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE 23 * GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 24 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER 25 * IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR 26 * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN 27 * IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 28 */ 29 30 #include <sys/types.h> 31 #include <sys/mount.h> 32 33 #include <rump/rump.h> 34 #include <rump/rump_syscalls.h> 35 36 #include <fs/tmpfs/tmpfs_args.h> 37 38 #include <atf-c.h> 39 #include <dlfcn.h> 40 #include <err.h> 41 #include <errno.h> 42 #include <stdio.h> 43 #include <stdlib.h> 44 #include <string.h> 45 #include <unistd.h> 46 #include <util.h> 47 48 #include "../../h_macros.h" 49 50 /* 51 * We verify that modules can be loaded and unloaded. 52 * tmpfs was chosen because it does not depend on an image. 53 */ 54 55 ATF_TC(cmsg_modcmd); 56 ATF_TC_HEAD(cmsg_modcmd, tc) 57 { 58 atf_tc_set_md_var(tc, "descr", "Checks that loading and unloading " 59 "a module (vfs/tmpfs) is possible"); 60 } 61 62 #define TMPFSMODULE "librumpfs_tmpfs.so" 63 ATF_TC_BODY(cmsg_modcmd, tc) 64 { 65 struct tmpfs_args args; 66 struct modinfo **mi; 67 void *handle; 68 int rv; 69 70 rump_init(); 71 memset(&args, 0, sizeof(args)); 72 args.ta_version = TMPFS_ARGS_VERSION; 73 args.ta_root_mode = 0777; 74 75 if (rump_sys_mkdir("/mp", 0777) == -1) 76 atf_tc_fail_errno("mkdir mountpoint"); 77 if (rump_sys_mount(MOUNT_TMPFS, "/mp", 0, &args, sizeof(args)) != -1) 78 atf_tc_fail("mount unexpectedly succeeded"); 79 80 handle = dlopen(TMPFSMODULE, RTLD_GLOBAL); 81 if (handle == NULL) { 82 const char *dlmsg = dlerror(); 83 atf_tc_fail("cannot open %s: %s", TMPFSMODULE, dlmsg); 84 } 85 mi = dlsym(handle, "__start_link_set_modules"); 86 if (mi == NULL) 87 atf_tc_fail("cannot find module info"); 88 if ((rv = rump_pub_module_init(*mi, NULL)) != 0) 89 atf_tc_fail("module init failed: %d (%s)", rv, strerror(rv)); 90 91 if (rump_sys_mount(MOUNT_TMPFS, "/mp", 0, &args, sizeof(args)) == -1) 92 atf_tc_fail_errno("still cannot mount"); 93 if (rump_sys_unmount("/mp", 0) == -1) 94 atf_tc_fail("cannot unmount"); 95 if ((rv = rump_pub_module_fini(*mi)) != 0) 96 atf_tc_fail("module fini failed: %d (%s)", rv, strerror(rv)); 97 if (dlclose(handle)) { 98 const char *dlmsg = dlerror(); 99 atf_tc_fail("cannot close %s: %s", TMPFSMODULE, dlmsg); 100 } 101 102 if (rump_sys_mount(MOUNT_TMPFS, "/mp", 0, &args, sizeof(args)) != -1) 103 atf_tc_fail("mount unexpectedly succeeded"); 104 } 105 106 ATF_TP_ADD_TCS(tp) 107 { 108 ATF_TP_ADD_TC(tp, cmsg_modcmd); 109 } 110