1 /*- 2 * Copyright (c) 1993, 1994 3 * The Regents of the University of California. All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 1. Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer. 10 * 2. Redistributions in binary form must reproduce the above copyright 11 * notice, this list of conditions and the following disclaimer in the 12 * documentation and/or other materials provided with the distribution. 13 * 3. All advertising materials mentioning features or use of this software 14 * must display the following acknowledgement: 15 * This product includes software developed by the University of 16 * California, Berkeley and its contributors. 17 * 4. Neither the name of the University nor the names of its contributors 18 * may be used to endorse or promote products derived from this software 19 * without specific prior written permission. 20 * 21 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 22 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 23 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 24 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 25 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 26 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 27 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 28 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 29 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 30 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 31 * SUCH DAMAGE. 32 * 33 * @(#) Copyright (c) 1993, 1994 The Regents of the University of California. All rights reserved. 34 * @(#)mount_ufs.c 8.4 (Berkeley) 4/26/95 35 * $FreeBSD: src/sbin/mount/mount_ufs.c,v 1.16.2.3 2001/08/01 08:27:29 obrien Exp $ 36 * $DragonFly: src/sbin/mount/mount_ufs.c,v 1.9 2006/10/28 20:42:54 pavalos Exp $ 37 */ 38 39 #include <sys/param.h> 40 #include <sys/mount.h> 41 #include <sys/sysctl.h> 42 43 #include <err.h> 44 #include <errno.h> 45 #include <stdio.h> 46 #include <stdlib.h> 47 #include <string.h> 48 #include <unistd.h> 49 50 #include <vfs/ufs/ufsmount.h> 51 52 #include "extern.h" 53 #include "mntopts.h" 54 55 static void ufs_usage(void); 56 57 static struct mntopt mopts[] = { 58 MOPT_STDOPTS, 59 MOPT_ASYNC, 60 MOPT_FORCE, 61 MOPT_SYNC, 62 MOPT_UPDATE, 63 MOPT_IGNORE, 64 MOPT_TRIM, 65 MOPT_NULL 66 }; 67 68 int mount_ufs(int, const char **); 69 70 int 71 mount_ufs(int argc, const char **argv) 72 { 73 struct ufs_args args; 74 int ch, mntflags; 75 const char *fs_name; 76 struct vfsconf vfc; 77 int error = 0; 78 79 mntflags = 0; 80 optind = optreset = 1; /* Reset for parse of new argv. */ 81 while ((ch = getopt(argc, __DECONST(char **, argv), "o:")) != -1) 82 switch (ch) { 83 case 'o': 84 getmntopts(optarg, mopts, &mntflags, 0); 85 break; 86 case '?': 87 default: 88 ufs_usage(); 89 } 90 argc -= optind; 91 argv += optind; 92 93 if (argc != 2) 94 ufs_usage(); 95 96 args.fspec = __DECONST(char *, argv[0]); /* The name of the device file. */ 97 fs_name = argv[1]; /* The mount point. */ 98 99 #define DEFAULT_ROOTUID -2 100 args.export.ex_root = DEFAULT_ROOTUID; 101 if (mntflags & MNT_RDONLY) 102 args.export.ex_flags = MNT_EXRDONLY; 103 else 104 args.export.ex_flags = 0; 105 106 if (mntflags & MNT_TRIM){ 107 char sysctl_name[64]; 108 int trim_enabled = 0; 109 size_t olen = sizeof(trim_enabled); 110 char *dev_name = strdup(args.fspec); 111 dev_name = strtok(dev_name + strlen("/dev/da"),"s"); 112 sprintf(sysctl_name, "kern.cam.da.%s.trim_enabled", dev_name); 113 sysctlbyname(sysctl_name, &trim_enabled, &olen, NULL, 0); 114 if(errno == ENOENT) { 115 printf("Device:%s does not support the TRIM command\n", 116 args.fspec); 117 ufs_usage(); 118 } 119 if(!trim_enabled) { 120 printf("Online TRIM selected, but sysctl (%s) " 121 "is not enabled\n",sysctl_name); 122 ufs_usage(); 123 } 124 } 125 126 error = getvfsbyname("ufs", &vfc); 127 if (error && vfsisloadable("ufs")) { 128 if (vfsload("ufs")) { 129 warn("vfsload(ufs)"); 130 return (1); 131 } 132 endvfsent(); /* flush old table */ 133 error = getvfsbyname("ufs", &vfc); 134 } 135 if (error) { 136 warnx("ufs filesystem is not available"); 137 return (1); 138 } 139 140 if (mount(vfc.vfc_name, fs_name, mntflags, &args) < 0) { 141 switch (errno) { 142 case EMFILE: 143 warnx("%s on %s: mount table full", 144 args.fspec, fs_name); 145 break; 146 case EINVAL: 147 if (mntflags & MNT_UPDATE) 148 warnx( 149 "%s on %s: specified device does not match mounted device", 150 args.fspec, fs_name); 151 else 152 warnx("%s on %s: incorrect super block", 153 args.fspec, fs_name); 154 break; 155 default: 156 warn("%s", args.fspec); 157 break; 158 } 159 return (1); 160 } 161 return (0); 162 } 163 164 static void 165 ufs_usage(void) 166 { 167 fprintf(stderr, "usage: mount_ufs [-o options] special node\n"); 168 exit(1); 169 } 170