1/*
2 * The new sysinstall program.
3 *
4 * This is probably the last attempt in the `sysinstall' line, the next
5 * generation being slated to essentially a complete rewrite.
6 *
7 * $FreeBSD$
8 *
9 * Copyright (c) 1995
10 *	Jordan Hubbard.  All rights reserved.
11 * Copyright (c) 1995
12 * 	Gary J Palmer. All rights reserved.
13 *
14 * Redistribution and use in source and binary forms, with or without
15 * modification, are permitted provided that the following conditions
16 * are met:
17 * 1. Redistributions of source code must retain the above copyright
18 *    notice, this list of conditions and the following disclaimer,
19 *    verbatim and that no modifications are made prior to this
20 *    point in the file.
21 * 2. Redistributions in binary form must reproduce the above copyright
22 *    notice, this list of conditions and the following disclaimer in the
23 *    documentation and/or other materials provided with the distribution.
24 *
25 * THIS SOFTWARE IS PROVIDED BY JORDAN HUBBARD ``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 JORDAN HUBBARD OR HIS PETS 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, LIFE 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
39/* These routines deal with getting things off of floppy media */
40
41#include "sysinstall.h"
42#include <sys/fcntl.h>
43#include <sys/stat.h>
44#include <sys/errno.h>
45#include <sys/param.h>
46#include <sys/wait.h>
47#include <unistd.h>
48#include <grp.h>
49
50#define MSDOSFS
51#include <sys/mount.h>
52#include <fs/msdosfs/msdosfsmount.h>
53#undef MSDOSFS
54
55#include <ufs/ufs/ufsmount.h>
56static Boolean floppyMounted;
57
58char *distWanted;
59static char mountpoint[] = "/dist";
60
61Boolean
62mediaInitFloppy(Device *dev)
63{
64    struct msdosfs_args dosargs;
65    struct ufs_args u_args;
66    char *mp;
67
68    if (floppyMounted)
69	return TRUE;
70
71    mp = dev->private ? (char *)dev->private : mountpoint;
72    if (Mkdir(mp)) {
73	msgConfirm("Unable to make %s directory mountpoint for %s!", mp, dev->devname);
74	return FALSE;
75    }
76
77    msgDebug("Init floppy called for %s distribution.\n", distWanted ? distWanted : "some");
78
79    if (!variable_get(VAR_NONINTERACTIVE)) {
80	if (!distWanted)
81	    msgConfirm("Please insert floppy in %s", dev->description);
82	else
83	    msgConfirm("Please insert floppy containing %s in %s",
84			distWanted, dev->description);
85    }
86
87    memset(&dosargs, 0, sizeof dosargs);
88    dosargs.fspec = dev->devname;
89    dosargs.uid = dosargs.gid = 0;
90    dosargs.mask = 0777;
91
92    memset(&u_args, 0, sizeof(u_args));
93    u_args.fspec = dev->devname;
94
95    if (mount("msdosfs", mp, MNT_RDONLY, (caddr_t)&dosargs) != -1)
96	goto success;
97    if (mount("ufs", mp, MNT_RDONLY, (caddr_t)&u_args) != -1)
98	goto success;
99
100    msgConfirm("Error mounting floppy %s (%s) on %s : %s",
101	       dev->name, dev->devname, mp, strerror(errno));
102    return FALSE;
103
104success:
105    floppyMounted = TRUE;
106    distWanted = NULL;
107    return TRUE;
108}
109
110FILE *
111mediaGetFloppy(Device *dev, char *file, Boolean probe)
112{
113    char	buf[PATH_MAX], *mp;
114    FILE	*fp;
115    int		nretries = 5;
116
117    /*
118     * floppies don't use mediaGenericGet() because it's too expensive
119     * to speculatively open files on a floppy disk.  Make user get it
120     * right or give up with floppies.
121     */
122    mp = dev->private ? (char *)dev->private : mountpoint;
123    snprintf(buf, PATH_MAX, "%s/%s", mp, file);
124    if (!file_readable(buf)) {
125	if (probe)
126	    return NULL;
127	else {
128	    while (!file_readable(buf)) {
129		if (!--nretries) {
130		    msgConfirm("GetFloppy: Failed to get %s after retries;\ngiving up.", buf);
131		    return NULL;
132		}
133		distWanted = buf;
134		mediaShutdownFloppy(dev);
135		if (!mediaInitFloppy(dev))
136		    return NULL;
137	    }
138	}
139    }
140    fp = fopen(buf, "r");
141    return fp;
142}
143
144void
145mediaShutdownFloppy(Device *dev)
146{
147    if (floppyMounted) {
148    	char *mp = dev->private ? (char *)dev->private : mountpoint;
149
150	if (unmount(mp, MNT_FORCE) != 0)
151	    msgDebug("Umount of floppy on %s failed: %s (%d)\n", mp, strerror(errno), errno);
152	else {
153	    floppyMounted = FALSE;
154	    if (!variable_get(VAR_NONINTERACTIVE) && variable_cmp(SYSTEM_STATE, "fixit"))
155		msgConfirm("You may remove the floppy from %s", dev->description);
156	}
157    }
158}
159