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