diff options
Diffstat (limited to 'contrib/netbsd-tests/fs/common/fstest_nfs.c')
-rw-r--r-- | contrib/netbsd-tests/fs/common/fstest_nfs.c | 326 |
1 files changed, 326 insertions, 0 deletions
diff --git a/contrib/netbsd-tests/fs/common/fstest_nfs.c b/contrib/netbsd-tests/fs/common/fstest_nfs.c new file mode 100644 index 000000000000..5ef256f1be41 --- /dev/null +++ b/contrib/netbsd-tests/fs/common/fstest_nfs.c @@ -0,0 +1,326 @@ +/* $NetBSD: fstest_nfs.c,v 1.9 2011/02/28 21:08:46 pooka Exp $ */ + +/* + * Copyright (c) 2010 The NetBSD Foundation, Inc. + * + * 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 AUTHOR ``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 AUTHOR 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/socket.h> +#include <sys/statvfs.h> +#include <sys/wait.h> + +#include <assert.h> +#include <atf-c.h> +#include <err.h> +#include <errno.h> +#include <fcntl.h> +#include <libgen.h> +#include <pthread.h> +#include <puffs.h> +#include <puffsdump.h> +#include <stdio.h> +#include <unistd.h> +#include <string.h> +#include <stdlib.h> + +#include <rump/rump.h> +#include <rump/rump_syscalls.h> + +#include "h_fsmacros.h" +#include "mount_nfs.h" +#include "../../net/config/netconfig.c" + +#define SERVERADDR "10.3.2.1" +#define SERVERROADDR "10.4.2.1" +#define CLIENTADDR "10.3.2.2" +#define CLIENTROADDR "10.4.2.2" +#define NETNETMASK "255.255.255.0" +#define EXPORTPATH "/myexport" + +static void +childfail(int status) +{ + + atf_tc_fail("child died"); +} + +/* fork rump nfsd, configure interface */ +static int +donewfs(const atf_tc_t *tc, void **argp, + const char *image, off_t size, void *fspriv) +{ + const char *srcdir; + char *nfsdargv[16]; + char nfsdpath[MAXPATHLEN]; + char imagepath[MAXPATHLEN]; + char ethername[MAXPATHLEN], ethername_ro[MAXPATHLEN]; + char ifname[IFNAMSIZ], ifname_ro[IFNAMSIZ]; + char cwd[MAXPATHLEN]; + struct nfstestargs *args; + pid_t childpid; + int pipes[2]; + int devnull; + + /* + * First, we start the nfs service. + */ + srcdir = atf_tc_get_config_var(tc, "srcdir"); + sprintf(nfsdpath, "%s/../nfs/nfsservice/rumpnfsd", srcdir); + sprintf(ethername, "/%s/%s.etherbus", getcwd(cwd, sizeof(cwd)), image); + sprintf(ethername_ro, "%s_ro", ethername); + sprintf(imagepath, "/%s/%s", cwd, image); + + nfsdargv[0] = nfsdpath; + nfsdargv[1] = ethername; + nfsdargv[2] = ethername_ro; + nfsdargv[3] = __UNCONST(SERVERADDR); + nfsdargv[4] = __UNCONST(SERVERROADDR); + nfsdargv[5] = __UNCONST(NETNETMASK); + nfsdargv[6] = __UNCONST(EXPORTPATH); + nfsdargv[7] = imagepath; + nfsdargv[8] = NULL; + + signal(SIGCHLD, childfail); + if (pipe(pipes) == -1) + return errno; + + switch ((childpid = fork())) { + case 0: + if (chdir(dirname(nfsdpath)) == -1) + err(1, "chdir"); + close(pipes[0]); + if (dup2(pipes[1], 3) == -1) + err(1, "dup2"); + if (execvp(nfsdargv[0], nfsdargv) == -1) + err(1, "execvp"); + case -1: + return errno; + default: + close(pipes[1]); + break; + } + + /* + * Ok, nfsd has been run. The following sleep helps with the + * theoretical problem that nfsd can't start fast enough to + * process our mount request and we end up doing a timeout + * before the mount. This would take several seconds. So + * try to make sure nfsd is up&running already at this stage. + */ + if (read(pipes[0], &devnull, 4) == -1) + return errno; + + /* + * Configure our networking interface. + */ + rump_init(); + netcfg_rump_makeshmif(ethername, ifname); + netcfg_rump_if(ifname, CLIENTADDR, NETNETMASK); + netcfg_rump_makeshmif(ethername_ro, ifname_ro); + netcfg_rump_if(ifname_ro, CLIENTROADDR, NETNETMASK); + + /* + * That's it. The rest is done in mount, since we don't have + * the mountpath available here. + */ + args = malloc(sizeof(*args)); + if (args == NULL) + return errno; + memset(args, 0, sizeof(*args)); + args->ta_childpid = childpid; + strcpy(args->ta_ethername, ethername); + + *argp = args; + + return 0; +} + +int +nfs_fstest_newfs(const atf_tc_t *tc, void **argp, + const char *image, off_t size, void *fspriv) +{ + + return donewfs(tc, argp, image, size, fspriv); +} + +int +nfsro_fstest_newfs(const atf_tc_t *tc, void **argp, + const char *image, off_t size, void *fspriv) +{ + + return donewfs(tc, argp, image, size, fspriv); +} + +/* mount the file system */ +static int +domount(const atf_tc_t *tc, void *arg, const char *serverpath, + const char *path, int flags) +{ + char canon_dev[MAXPATHLEN], canon_dir[MAXPATHLEN]; + const char *nfscliargs[] = { + "nfsclient", + serverpath, + path, + NULL, + }; + struct nfs_args args; + int mntflags; + + if (rump_sys_mkdir(path, 0777) == -1) + return errno; + + /* XXX: atf does not reset values */ + optind = 1; + opterr = 1; + + /* + * We use nfs parseargs here, since as a side effect it + * takes care of the RPC hulabaloo. + */ + mount_nfs_parseargs(__arraycount(nfscliargs)-1, __UNCONST(nfscliargs), + &args, &mntflags, canon_dev, canon_dir); + + if (rump_sys_mount(MOUNT_NFS, path, flags, &args, sizeof(args)) == -1) { + return errno; + } + + return 0; +} + +int +nfs_fstest_mount(const atf_tc_t *tc, void *arg, const char *path, int flags) +{ + + return domount(tc, arg, SERVERADDR ":" EXPORTPATH, path, flags); +} + +/* + * This is where the magic happens! + * + * If we are mounting r/w, do the normal thing. However, if we are + * doing a r/o mount, switch use the r/o server export address + * and do a r/w mount. This way we end up testing the r/o export policy + * of the server! (yes, slightly questionable semantics, but at least + * we notice very quickly if our assumption is broken in the future ;) + */ +int +nfsro_fstest_mount(const atf_tc_t *tc, void *arg, const char *path, int flags) +{ + + if (flags & MNT_RDONLY) { + flags &= ~MNT_RDONLY; + return domount(tc, arg, SERVERROADDR":"EXPORTPATH, path, flags); + } else { + return domount(tc, arg, SERVERADDR":"EXPORTPATH, path, flags); + } +} + +static int +dodelfs(const atf_tc_t *tc, void *arg) +{ + + /* + * XXX: no access to "args" since we're called from "cleanup". + * Trust atf to kill nfsd process and remove etherfile. + */ +#if 0 + /* + * It's highly expected that the child will die next, so we + * don't need that information anymore thank you very many. + */ + signal(SIGCHLD, SIG_IGN); + + /* + * Just KILL it. Sending it SIGTERM first causes it to try + * to send some unmount RPCs, leading to sticky situations. + */ + kill(args->ta_childpid, SIGKILL); + wait(&status); + + /* remove ethernet bus */ + if (unlink(args->ta_ethername) == -1) + atf_tc_fail_errno("unlink ethername"); +#endif + + return 0; +} + +int +nfs_fstest_delfs(const atf_tc_t *tc, void *arg) +{ + + return dodelfs(tc, arg); +} + +int +nfsro_fstest_delfs(const atf_tc_t *tc, void *arg) +{ + + return dodelfs(tc, arg); +} + +static int +dounmount(const atf_tc_t *tc, const char *path, int flags) +{ + int status, i, sverrno; + + /* + * NFS handles sillyrenames in an workqueue. Some of them might + * be still in the queue even if all user activity has ceased. + * We try to unmount for 2 seconds to give them a chance + * to flush out. + * + * PR kern/43799 + */ + for (i = 0; i < 20; i++) { + if ((status = rump_sys_unmount(path, flags)) == 0) + break; + sverrno = errno; + if (sverrno != EBUSY) + break; + usleep(100000); + } + if (status == -1) + return sverrno; + + if (rump_sys_rmdir(path) == -1) + return errno; + + return 0; +} + +int +nfs_fstest_unmount(const atf_tc_t *tc, const char *path, int flags) +{ + + return dounmount(tc, path, flags); +} + +int +nfsro_fstest_unmount(const atf_tc_t *tc, const char *path, int flags) +{ + + return dounmount(tc, path, flags); +} |