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/*
* The new sysinstall program.
*
* This is probably the last attempt in the `sysinstall' line, the next
* generation being slated to essentially a complete rewrite.
*
* $Id: floppy.c,v 1.6.2.17 1995/06/10 09:14:51 jkh Exp $
*
* Copyright (c) 1995
* Jordan Hubbard. All rights reserved.
* Copyright (c) 1995
* Gary J Palmer. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer,
* verbatim and that no modifications are made prior to this
* point in the file.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed by Jordan Hubbard
* for the FreeBSD Project.
* 4. The name of Jordan Hubbard or the FreeBSD project may not be used to
* endorse or promote products derived from this software without specific
* prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY JORDAN HUBBARD ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL JORDAN HUBBARD OR HIS PETS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, LIFE OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
*/
/* These routines deal with getting things off of floppy media */
#include "sysinstall.h"
#include <sys/fcntl.h>
#include <sys/stat.h>
#include <sys/errno.h>
#include <sys/param.h>
#include <sys/wait.h>
#include <unistd.h>
#include <grp.h>
#define MSDOSFS
#include <sys/mount.h>
#undef MSDOSFS
static Device *floppyDev;
static Boolean floppyMounted;
static char *distWanted;
/* For finding floppies */
static int
floppyChoiceHook(char *str)
{
Device **devs;
/* Clip garbage off the ends */
string_prune(str);
str = string_skipwhite(str);
if (!*str)
return 0;
devs = deviceFind(str, DEVICE_TYPE_FLOPPY);
if (devs)
floppyDev = devs[0];
return devs ? 1 : 0;
}
/* Our last-ditch routine for getting ROOT from a floppy */
int
getRootFloppy(void)
{
int fd = -1;
while (floppyDev == NULL || fd == -1) {
Device **devs;
int cnt;
devs = deviceFind(NULL, DEVICE_TYPE_FLOPPY);
cnt = deviceCount(devs);
if (!cnt) {
msgConfirm("No floppy devices found! Something is seriously wrong!");
return -1;
}
else if (cnt == 1) {
floppyDev = devs[0];
msgConfirm("Please insert the ROOT floppy in %s and press [ENTER]", floppyDev->description);
}
else {
DMenu *menu;
menu = deviceCreateMenu(&MenuMediaFloppy, DEVICE_TYPE_FLOPPY, floppyChoiceHook);
menu->title = "Please insert the ROOT floppy";
if (!dmenuOpenSimple(menu))
return -1;
}
if (!floppyDev)
continue;
fd = open(floppyDev->devname, O_RDONLY);
if (isDebug())
msgDebug("getRootFloppy on %s yields fd of %d\n", floppyDev->devname, fd);
}
return fd;
}
Boolean
mediaInitFloppy(Device *dev)
{
struct msdosfs_args dosargs;
if (floppyMounted)
return TRUE;
if (Mkdir("/mnt", NULL)) {
msgConfirm("Unable to make directory mountpoint for %s!", dev->devname);
return FALSE;
}
if (!distWanted)
msgConfirm("Please insert next floppy into %s", dev->description);
else {
msgConfirm("Please insert floppy containing %s into %s", distWanted, dev->description);
distWanted = NULL;
}
memset(&dosargs, 0, sizeof dosargs);
dosargs.fspec = dev->devname;
dosargs.uid = dosargs.gid = 0;
dosargs.mask = 0777;
if (mount(MOUNT_MSDOS, "/mnt", 0, (caddr_t)&dosargs) == -1) {
msgConfirm("Error mounting floppy %s (%s) on /mnt : %s", dev->name, dev->devname, strerror(errno));
return FALSE;
}
if (isDebug())
msgDebug("initFloppy: mounted floppy %s successfully on /mnt\n", dev->devname);
floppyMounted = TRUE;
return TRUE;
}
int
mediaGetFloppy(Device *dev, char *file, Attribs *dist_attrs)
{
char buf[PATH_MAX];
#ifdef DO_CRC_CHECK
char *extn, *var;
const char *val;
char attrib[10];
u_long cval1, clen1, cval2, clen2;
#endif
int fd;
int nretries = 5;
snprintf(buf, PATH_MAX, "/mnt/%s", file);
if (access(buf, R_OK)) {
if (dev->flags & OPT_EXPLORATORY_GET)
return -1;
else {
while (access(buf, R_OK) != 0) {
if (!--nretries) {
msgConfirm("GetFloppy: Failed to get %s after retries;\ngiving up.", file);
return -1;
}
distWanted = buf;
(*dev->shutdown)(dev);
if (!(dev->init)(dev))
return -1;
}
}
}
fd = open(buf, O_RDONLY);
#ifdef DO_CRC_CHECK
if (dist_attrs != NULL && fd != -1) {
extn = rindex(buf, '.');
snprintf(attrib, 10, "cksum%s", extn);
val = attr_match(dist_attrs, attrib);
if (val != NULL) {
if (isDebug())
msgDebug("attr_match(%s,%s) returned `%s'\n", dist_attrs, attrib, val);
var = strdup(val);
cval1 = strtol(var, &extn, 10);
clen1 = strtol(extn, NULL, 10);
if (crc(fd, &cval2, &clen2) != 0) {
msgConfirm("crc() of file `%s' failed!", file);
close(fd);
return -1;
}
if ((cval1 != cval2) || (clen1 != clen2)) {
msgConfirm("Invalid file `%s' (checksum `%u %u' should be %s)", file, cval2, clen2, var);
close(fd);
return -1;
}
lseek(fd, 0, 0);
}
else
msgNotify("No checksum information for file %s..", file);
}
#endif
return fd;
}
void
mediaShutdownFloppy(Device *dev)
{
if (floppyMounted) {
if (unmount("/mnt", MNT_FORCE) != 0)
msgDebug("Umount of floppy on /mnt failed: %s (%d)\n", strerror(errno), errno);
else {
floppyMounted = FALSE;
msgConfirm("You may remove the floppy from %s", dev->description);
}
}
}
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