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 */ 37 38 #include <sys/param.h> 39 #include <sys/mount.h> 40 #include <sys/sysctl.h> 41 42 #include <err.h> 43 #include <errno.h> 44 #include <mntopts.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 54 static void ufs_usage(void); 55 56 static struct mntopt mopts[] = { 57 MOPT_STDOPTS, 58 MOPT_ASYNC, 59 MOPT_FORCE, 60 MOPT_SYNC, 61 MOPT_UPDATE, 62 MOPT_IGNORE, 63 MOPT_TRIM, 64 MOPT_NULL 65 }; 66 67 int mount_ufs(int, const char **); 68 69 int 70 mount_ufs(int argc, const char **argv) 71 { 72 struct ufs_args args; 73 int ch, mntflags; 74 const char *fs_name; 75 struct vfsconf vfc; 76 int error = 0; 77 78 mntflags = 0; 79 optind = optreset = 1; /* Reset for parse of new argv. */ 80 while ((ch = getopt(argc, __DECONST(char **, argv), "o:")) != -1) 81 switch (ch) { 82 case 'o': 83 getmntopts(optarg, mopts, &mntflags, 0); 84 break; 85 case '?': 86 default: 87 ufs_usage(); 88 } 89 argc -= optind; 90 argv += optind; 91 92 if (argc != 2) 93 ufs_usage(); 94 95 args.fspec = __DECONST(char *, argv[0]); /* The name of the device file. */ 96 fs_name = argv[1]; /* The mount point. */ 97 98 #define DEFAULT_ROOTUID -2 99 args.export.ex_root = DEFAULT_ROOTUID; 100 if (mntflags & MNT_RDONLY) 101 args.export.ex_flags = MNT_EXRDONLY; 102 else 103 args.export.ex_flags = 0; 104 105 if (mntflags & MNT_TRIM){ 106 char sysctl_name[64]; 107 int trim_enabled = 0; 108 size_t olen = sizeof(trim_enabled); 109 char *dev_name = strdup(args.fspec); 110 dev_name = strtok(dev_name + strlen("/dev/da"),"s"); 111 sprintf(sysctl_name, "kern.cam.da.%s.trim_enabled", dev_name); 112 sysctlbyname(sysctl_name, &trim_enabled, &olen, NULL, 0); 113 if(errno == ENOENT) { 114 printf("Device:%s does not support the TRIM command\n", 115 args.fspec); 116 ufs_usage(); 117 } 118 if(!trim_enabled) { 119 printf("Online TRIM selected, but sysctl (%s) " 120 "is not enabled\n",sysctl_name); 121 ufs_usage(); 122 } 123 } 124 125 error = getvfsbyname("ufs", &vfc); 126 if (error && vfsisloadable("ufs")) { 127 if (vfsload("ufs")) { 128 warn("vfsload(ufs)"); 129 return (1); 130 } 131 endvfsent(); /* flush old table */ 132 error = getvfsbyname("ufs", &vfc); 133 } 134 if (error) { 135 warnx("ufs filesystem is not available"); 136 return (1); 137 } 138 139 if (mount(vfc.vfc_name, fs_name, mntflags, &args) < 0) { 140 switch (errno) { 141 case EMFILE: 142 warnx("%s on %s: mount table full", 143 args.fspec, fs_name); 144 break; 145 case EINVAL: 146 if (mntflags & MNT_UPDATE) 147 warnx( 148 "%s on %s: specified device does not match mounted device", 149 args.fspec, fs_name); 150 else 151 warnx("%s on %s: incorrect super block", 152 args.fspec, fs_name); 153 break; 154 default: 155 warn("%s", args.fspec); 156 break; 157 } 158 return (1); 159 } 160 return (0); 161 } 162 163 static void 164 ufs_usage(void) 165 { 166 fprintf(stderr, "usage: mount_ufs [-o options] special node\n"); 167 exit(1); 168 } 169