diff options
Diffstat (limited to 'contrib/netbsd-tests/rump/rumpkern/t_modcmd.c')
| -rw-r--r-- | contrib/netbsd-tests/rump/rumpkern/t_modcmd.c | 182 |
1 files changed, 182 insertions, 0 deletions
diff --git a/contrib/netbsd-tests/rump/rumpkern/t_modcmd.c b/contrib/netbsd-tests/rump/rumpkern/t_modcmd.c new file mode 100644 index 0000000..032e312 --- /dev/null +++ b/contrib/netbsd-tests/rump/rumpkern/t_modcmd.c @@ -0,0 +1,182 @@ +/* $NetBSD: t_modcmd.c,v 1.9 2010/05/31 23:51:28 pooka Exp $ */ + +/* + * Copyright (c) 2009 The NetBSD Foundation, Inc. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND + * CONTRIBUTORS ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, + * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF + * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. + * IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS BE LIABLE FOR ANY + * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE + * GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS + * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER + * IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR + * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN + * IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + */ + +#include <sys/types.h> +#include <sys/mount.h> +#include <sys/sysctl.h> + +#include <rump/rump.h> +#include <rump/rump_syscalls.h> + +#include <fs/tmpfs/tmpfs_args.h> + +#include <atf-c.h> +#include <dlfcn.h> +#include <err.h> +#include <errno.h> +#include <stdio.h> +#include <stdlib.h> +#include <string.h> +#include <unistd.h> +#include <util.h> + +#include "../../h_macros.h" +/* + * We verify that modules can be loaded and unloaded. + * tmpfs was chosen because it does not depend on an image. + */ + +ATF_TC(cmsg_modcmd); +ATF_TC_HEAD(cmsg_modcmd, tc) +{ + atf_tc_set_md_var(tc, "descr", "Checks that loading and unloading " + "a module (vfs/tmpfs) is possible"); +} + +static int +disable_autoload(void) +{ + struct sysctlnode q, ans[256]; + int mib[3]; + size_t alen; + unsigned i; + bool no; + + mib[0] = CTL_KERN; + mib[1] = CTL_QUERY; + alen = sizeof(ans); + + memset(&q, 0, sizeof(q)); + q.sysctl_flags = SYSCTL_VERSION; + + if (rump_sys___sysctl(mib, 2, ans, &alen, &q, sizeof(q)) == -1) + return -1; + + for (i = 0; i < __arraycount(ans); i++) + if (strcmp("module", ans[i].sysctl_name) == 0) + break; + if (i == __arraycount(ans)) { + errno = ENOENT; + return -1; + } + + mib[1] = ans[i].sysctl_num; + mib[2] = CTL_QUERY; + + if (rump_sys___sysctl(mib, 3, ans, &alen, &q, sizeof(q)) == -1) + return errno; + + for (i = 0; i < __arraycount(ans); i++) + if (strcmp("autoload", ans[i].sysctl_name) == 0) + break; + if (i == __arraycount(ans)) { + errno = ENOENT; + return -1; + } + + mib[2] = ans[i].sysctl_num; + + no = false; + alen = 0; + if (rump_sys___sysctl(mib, 3, NULL, &alen, &no, sizeof(no)) == -1) + return errno; + + return 0; + +} + +#define TMPFSMODULE "librumpfs_tmpfs.so" +ATF_TC_BODY(cmsg_modcmd, tc) +{ + struct tmpfs_args args; + const struct modinfo *const *mi_start, *const *mi_end; + void *handle; + int i, rv, loop = 0; + + rump_init(); + + if (disable_autoload() == -1) + atf_tc_fail_errno("count not disable module autoload"); + + memset(&args, 0, sizeof(args)); + args.ta_version = TMPFS_ARGS_VERSION; + args.ta_root_mode = 0777; + + if (rump_sys_mkdir("/mp", 0777) == -1) + atf_tc_fail_errno("mkdir mountpoint"); + if (rump_sys_mount(MOUNT_TMPFS, "/mp", 0, &args, sizeof(args)) != -1) + atf_tc_fail("mount unexpectedly succeeded"); + + handle = dlopen(TMPFSMODULE, RTLD_GLOBAL); + if (handle == NULL) { + const char *dlmsg = dlerror(); + atf_tc_fail("cannot open %s: %s", TMPFSMODULE, dlmsg); + } + + again: + mi_start = dlsym(handle, "__start_link_set_modules"); + mi_end = dlsym(handle, "__stop_link_set_modules"); + if (mi_start == NULL || mi_end == NULL) + atf_tc_fail("cannot find module info"); + if ((rv = rump_pub_module_init(mi_start, (size_t)(mi_end-mi_start)))!=0) + atf_tc_fail("module init failed: %d (%s)", rv, strerror(rv)); + if ((rv = rump_pub_module_init(mi_start, (size_t)(mi_end-mi_start)))==0) + atf_tc_fail("module double init succeeded"); + + if (rump_sys_mount(MOUNT_TMPFS, "/mp", 0, &args, sizeof(args)) == -1) + atf_tc_fail_errno("still cannot mount"); + if (rump_sys_unmount("/mp", 0) == -1) + atf_tc_fail("cannot unmount"); + for (i = 0; i < (int)(mi_end-mi_start); i++) { + if ((rv = rump_pub_module_fini(mi_start[i])) != 0) + atf_tc_fail("module fini failed: %d (%s)", + rv, strerror(rv)); + } + for (i = 0; i < (int)(mi_end-mi_start); i++) { + if ((rv = rump_pub_module_fini(mi_start[i])) == 0) + atf_tc_fail("module double fini succeeded"); + } + if (loop++ == 0) + goto again; + + if (dlclose(handle)) { + const char *dlmsg = dlerror(); + atf_tc_fail("cannot close %s: %s", TMPFSMODULE, dlmsg); + } + + if (rump_sys_mount(MOUNT_TMPFS, "/mp", 0, &args, sizeof(args)) != -1) + atf_tc_fail("mount unexpectedly succeeded"); +} + +ATF_TP_ADD_TCS(tp) +{ + ATF_TP_ADD_TC(tp, cmsg_modcmd); + + return atf_no_error(); +} |
