/* * Copyright (c) 1999 Apple Computer, Inc. All rights reserved. * * @APPLE_LICENSE_HEADER_START@ * * This file contains Original Code and/or Modifications of Original Code * as defined in and that are subject to the Apple Public Source License * Version 2.0 (the 'License'). You may not use this file except in * compliance with the License. Please obtain a copy of the License at * http://www.opensource.apple.com/apsl/ and read it before using this * file. * * The Original Code and all software distributed under the License are * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES, * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY, * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT. * Please see the License for the specific language governing rights and * limitations under the License. * * @APPLE_LICENSE_HEADER_END@ */ /*- * Copyright (c) 1993, 1994 * The Regents of the University of California. 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. * 3. All advertising materials mentioning features or use of this software * must display the following acknowledgement: * This product includes software developed by the University of * California, Berkeley and its contributors. * 4. Neither the name of the University nor the names of its contributors * may be used to endorse or promote products derived from this software * without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE REGENTS 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 REGENTS 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. */ /******** static char copyright[] = "@(#) Copyright (c) 1993, 1994\n\ The Regents of the University of California. All rights reserved.\n"; ********/ /******** static char sccsid[] = "@(#)mount_ufs.c 8.4 (Berkeley) 4/26/95"; ********/ #include <sys/param.h> #include <sys/mount.h> #include <sys/wait.h> #include <sys/appleapiopts.h> #include <err.h> #include <errno.h> #include <stdio.h> #include <stdlib.h> #include <string.h> #include <unistd.h> struct ufs_args { char *fspec; // block special device to mount }; #include <mntopts.h> void ufs_usage __P((void)); static int checkLoadable(void); static int load_kmod(void); #define FS_TYPE "ufs" #define LOAD_COMMAND "/sbin/kextload" #define UFS_MODULE_PATH "/System/Library/Extensions/ufs.kext" static struct mntopt mopts[] = { MOPT_STDOPTS, MOPT_ASYNC, MOPT_SYNC, MOPT_UPDATE, MOPT_FORCE, { NULL } }; static int checkLoadable(void) { int error; struct vfsconf vfc; error = getvfsbyname(FS_TYPE, &vfc); return error; } static int load_kmod(void) { int pid; int result = -1; union wait status; pid = fork(); if (pid == 0) { /* in the child process */ result = execl(LOAD_COMMAND, LOAD_COMMAND, UFS_MODULE_PATH, NULL); /* we'll only return if execl failed */ return -1; } if (pid == -1) { /* fork failed */ result = errno; return result; } /* otherwise, wait for the kextload to finish */ if ((wait4(pid, (int*)&status, 0, NULL) == pid) && (WIFEXITED(status))) { result = status.w_retcode; } else { result = -1; } return result; } int mount_ufs(argc, argv) int argc; char * const argv[]; { extern int optreset; struct ufs_args args; struct statfs fsinfo; int ch, mntflags, noasync; char *fs_name; mntoptparse_t tmp; mntflags = 0; noasync = 0; optind = optreset = 1; /* Reset for parse of new argv. */ while ((ch = getopt(argc, argv, "o:")) != EOF) switch (ch) { case 'o': if (strstr(optarg, "noasync") != NULL) noasync = 1; tmp = getmntopts(optarg, mopts, &mntflags, 0); if (mntflags & MNT_SYNCHRONOUS) noasync = 1; freemntopts(tmp); break; case '?': default: ufs_usage(); } argc -= optind; argv += optind; if (argc != 2) ufs_usage(); args.fspec = argv[0]; /* The name of the device file. */ fs_name = argv[1]; /* The mount point. */ /* * In the case of a mount point update, the mount system call below * will used, and it will succeed even if the volume is not UFS. Thus, * the noasync flag should be forced unless the volume actually is UFS. */ if (statfs(fs_name, &fsinfo) == 0) { if (strncmp(fsinfo.f_mntonname, fs_name, MFSNAMELEN) == 0) { if (strncmp(fsinfo.f_fstypename, "ufs", MFSNAMELEN) != 0) { noasync = 1; } } } /* default to read-only mounts for 10.6 */ if (!(mntflags & MNT_RDONLY)) { mntflags |= MNT_RDONLY; } if ((mntflags & MNT_UPDATE) == 0) { /* Check to see if UFS kext is already loaded */ if (checkLoadable()) { /* load the kext */ if (load_kmod()) { fprintf(stderr, "UFS filesystem is not available.\n"); return 1; } } } /* default to async by setting the flag unless noasync was specified */ if (mount("ufs", fs_name, mntflags, &args) < 0) { (void)fprintf(stderr, "%s on %s: ", args.fspec, fs_name); switch (errno) { case EMFILE: (void)fprintf(stderr, "mount table full.\n"); break; case EINVAL: if (mntflags & MNT_UPDATE) (void)fprintf(stderr, "Specified device does not match mounted device.\n"); else (void)fprintf(stderr, "Incorrect super block.\n"); break; default: (void)fprintf(stderr, "%s\n", strerror(errno)); break; } return (1); } return (0); } void ufs_usage() { (void)fprintf(stderr, "usage: mount_ufs [-o options] special node\n"); exit(1); }