xref: /netbsd-src/external/bsd/am-utils/dist/amd/ops_ufs.c (revision 8bae5d409deb915cf7c8f0539fae22ff2cb8a313)
1 /*	$NetBSD: ops_ufs.c,v 1.1.1.3 2015/01/17 16:34:15 christos Exp $	*/
2 
3 /*
4  * Copyright (c) 1997-2014 Erez Zadok
5  * Copyright (c) 1990 Jan-Simon Pendry
6  * Copyright (c) 1990 Imperial College of Science, Technology & Medicine
7  * Copyright (c) 1990 The Regents of the University of California.
8  * All rights reserved.
9  *
10  * This code is derived from software contributed to Berkeley by
11  * Jan-Simon Pendry at Imperial College, London.
12  *
13  * Redistribution and use in source and binary forms, with or without
14  * modification, are permitted provided that the following conditions
15  * are met:
16  * 1. Redistributions of source code must retain the above copyright
17  *    notice, this list of conditions and the following disclaimer.
18  * 2. Redistributions in binary form must reproduce the above copyright
19  *    notice, this list of conditions and the following disclaimer in the
20  *    documentation and/or other materials provided with the distribution.
21  * 3. Neither the name of the University nor the names of its contributors
22  *    may be used to endorse or promote products derived from this software
23  *    without specific prior written permission.
24  *
25  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
26  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
27  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
28  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
29  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
30  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
31  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
32  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
33  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
34  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
35  * SUCH DAMAGE.
36  *
37  *
38  * File: am-utils/amd/ops_ufs.c
39  *
40  */
41 
42 /*
43  * UN*X file system
44  */
45 
46 #ifdef HAVE_CONFIG_H
47 # include <config.h>
48 #endif /* HAVE_CONFIG_H */
49 #include <am_defs.h>
50 #include <amd.h>
51 
52 /* forward declarations */
53 static char *ufs_match(am_opts *fo);
54 static int ufs_mount(am_node *am, mntfs *mf);
55 static int ufs_umount(am_node *am, mntfs *mf);
56 
57 /*
58  * Ops structure
59  */
60 am_ops ufs_ops =
61 {
62 #ifndef __NetBSD__
63   "ufs",
64 #else
65   "ffs",
66 #endif
67   ufs_match,
68   0,				/* ufs_init */
69   ufs_mount,
70   ufs_umount,
71   amfs_error_lookup_child,
72   amfs_error_mount_child,
73   amfs_error_readdir,
74   0,				/* ufs_readlink */
75   0,				/* ufs_mounted */
76   0,				/* ufs_umounted */
77   amfs_generic_find_srvr,
78   0,				/* ufs_get_wchan */
79   FS_MKMNT | FS_NOTIMEOUT | FS_UBACKGROUND | FS_AMQINFO, /* nfs_fs_flags */
80 #ifdef HAVE_FS_AUTOFS
81   AUTOFS_UFS_FS_FLAGS,
82 #endif /* HAVE_FS_AUTOFS */
83 };
84 
85 
86 /*
87  * UFS needs local filesystem and device.
88  */
89 static char *
ufs_match(am_opts * fo)90 ufs_match(am_opts *fo)
91 {
92 
93   if (!fo->opt_dev) {
94     plog(XLOG_USER, "ufs: no device specified");
95     return 0;
96   }
97 
98   dlog("UFS: mounting device \"%s\" on \"%s\"", fo->opt_dev, fo->opt_fs);
99 
100   /*
101    * Determine magic cookie to put in mtab
102    */
103   return xstrdup(fo->opt_dev);
104 }
105 
106 
107 static int
mount_ufs(char * mntdir,char * fs_name,char * opts,int on_autofs)108 mount_ufs(char *mntdir, char *fs_name, char *opts, int on_autofs)
109 {
110   ufs_args_t ufs_args;
111   mntent_t mnt;
112   int genflags;
113 
114   /*
115    * Figure out the name of the file system type.
116    */
117   MTYPE_TYPE type = MOUNT_TYPE_UFS;
118 
119   memset((voidp) &ufs_args, 0, sizeof(ufs_args)); /* Paranoid */
120 
121   /*
122    * Fill in the mount structure
123    */
124   memset((voidp) &mnt, 0, sizeof(mnt));
125   mnt.mnt_dir = mntdir;
126   mnt.mnt_fsname = fs_name;
127   mnt.mnt_type = MNTTAB_TYPE_UFS;
128   mnt.mnt_opts = opts;
129 
130   genflags = compute_mount_flags(&mnt);
131 #ifdef HAVE_FS_AUTOFS
132   if (on_autofs)
133     genflags |= autofs_compute_mount_flags(&mnt);
134 #endif /* HAVE_FS_AUTOFS */
135 
136 #ifdef HAVE_UFS_ARGS_T_FLAGS
137   ufs_args.flags = genflags;	/* XXX: is this correct? */
138 #endif /* HAVE_UFS_ARGS_T_FLAGS */
139 
140 #ifdef HAVE_UFS_ARGS_T_UFS_FLAGS
141   ufs_args.ufs_flags = genflags;
142 #endif /* HAVE_UFS_ARGS_T_UFS_FLAGS */
143 
144 #ifdef HAVE_UFS_ARGS_T_FSPEC
145   ufs_args.fspec = fs_name;
146 #endif /* HAVE_UFS_ARGS_T_FSPEC */
147 
148 #ifdef HAVE_UFS_ARGS_T_UFS_PGTHRESH
149   ufs_args.ufs_pgthresh = hasmntval(&mnt, MNTTAB_OPT_PGTHRESH);
150 #endif /* HAVE_UFS_ARGS_T_UFS_PGTHRESH */
151 
152   /*
153    * Call generic mount routine
154    */
155   return mount_fs(&mnt, genflags, (caddr_t) &ufs_args, 0, type, 0, NULL, mnttab_file_name, on_autofs);
156 }
157 
158 
159 static int
ufs_mount(am_node * am,mntfs * mf)160 ufs_mount(am_node *am, mntfs *mf)
161 {
162   int on_autofs = mf->mf_flags & MFF_ON_AUTOFS;
163   int error;
164 
165   error = mount_ufs(mf->mf_mount, mf->mf_info, mf->mf_mopts, on_autofs);
166   if (error) {
167     errno = error;
168     plog(XLOG_ERROR, "mount_ufs: %m");
169     return error;
170   }
171 
172   return 0;
173 }
174 
175 
176 static int
ufs_umount(am_node * am,mntfs * mf)177 ufs_umount(am_node *am, mntfs *mf)
178 {
179   int unmount_flags = (mf->mf_flags & MFF_ON_AUTOFS) ? AMU_UMOUNT_AUTOFS : 0;
180 
181   return UMOUNT_FS(mf->mf_mount, mnttab_file_name, unmount_flags);
182 }
183