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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: cdrom.c,v 1.15 1996/06/11 05:06:32 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.
*
* 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 CDROM media */
#include "sysinstall.h"
#include <sys/stat.h>
#include <sys/errno.h>
#include <sys/param.h>
#include <sys/wait.h>
#include <unistd.h>
#include <grp.h>
#include <fcntl.h>
#define CD9660
#include <sys/mount.h>
#undef CD9660
#define CD_UNMOUNTED 0
#define CD_ALREADY_MOUNTED 1
#define CD_WE_MOUNTED_IT 2
/*
* This isn't static, like the others, since it's often useful to know whether
* or not we have a CDROM available in some of the other installation screens.
* This also isn't a boolean like the others since we have 3 states for it:
* 0 = cdrom isn't mounted, 1 = cdrom is mounted and we mounted it, 2 = cdrom
* was already mounted when we came in and we should leave it that way when
* we leave.
*/
int cdromMounted;
Boolean
mediaInitCDROM(Device *dev)
{
struct iso_args args;
Attribs *cd_attr;
char *cp;
if (cdromMounted != CD_UNMOUNTED)
return TRUE;
if (Mkdir("/cdrom", NULL))
return FALSE;
bzero(&args, sizeof(args));
args.fspec = dev->devname;
args.flags = 0;
cd_attr = safe_malloc(sizeof(Attribs) * MAX_ATTRIBS);
cp = NULL;
/* If this cdrom's not already mounted or can't be mounted, yell */
if (!file_readable("/cdrom/cdrom.inf")) {
if (mount(MOUNT_CD9660, "/cdrom", MNT_RDONLY, (caddr_t) &args) == -1) {
msgConfirm("Error mounting %s on /cdrom: %s (%u)", dev->devname, strerror(errno), errno);
return FALSE;
}
else if (!file_readable("/cdrom/cdrom.inf")) {
if (msgYesNo("Warning: The CD currently in the drive is either not a FreeBSD\n"
"CD or it is an older (pre 2.1.5) FreeBSD CD which does not\n"
"have a version number on it. Do you wish to use this CD anyway?")) {
unmount("/cdrom", MNT_FORCE);
return FALSE;
}
}
cdromMounted = CD_WE_MOUNTED_IT;
}
else
cdromMounted = CD_ALREADY_MOUNTED;
if (DITEM_STATUS(attr_parse_file(cd_attr, "/cdrom/cdrom.inf")) == DITEM_FAILURE ||
!(cp = attr_match(cd_attr, "CD_VERSION")) || strcmp(cp, variable_get(VAR_RELNAME))) {
unmount("/cdrom", MNT_FORCE);
if (!cp)
msgConfirm("I/O error trying to read the contents of /cdrom/cdrom.inf.\n"
"Either this is not a FreeBSD CDROM, there is a problem with\n"
"the CDROM driver or something is wrong with your hardware.\n"
"Please fix this problem (check the console logs on VTY2) and\n"
"try again.");
else
msgConfirm("The version of the FreeBSD CD currently in the drive (%s)\n"
"does not match the version of this boot floppy (%s).\n"
"If this is intentional, then please visit the Options editor\n"
"to set the boot floppy version string to match that of the CD\n"
"before selecting it as an installation media.");
cdromMounted = CD_UNMOUNTED;
safe_free(cd_attr);
return FALSE;
}
safe_free(cd_attr);
msgDebug("Mounted FreeBSD CDROM on device %s as /cdrom\n", dev->devname);
return TRUE;
}
int
mediaGetCDROM(Device *dev, char *file, Boolean probe)
{
char buf[PATH_MAX];
msgDebug("Request for %s from CDROM\n", file);
snprintf(buf, PATH_MAX, "/cdrom/%s", file);
if (file_readable(buf))
return open(buf, O_RDONLY);
snprintf(buf, PATH_MAX, "/cdrom/dists/%s", file);
if (file_readable(buf))
return open(buf, O_RDONLY);
snprintf(buf, PATH_MAX, "/cdrom/%s/%s", variable_get(VAR_RELNAME), file);
if (file_readable(buf))
return open(buf, O_RDONLY);
snprintf(buf, PATH_MAX, "/cdrom/%s/dists/%s", variable_get(VAR_RELNAME), file);
return open(buf, O_RDONLY);
}
void
mediaShutdownCDROM(Device *dev)
{
/* Only undo it if we did it */
if (cdromMounted != CD_WE_MOUNTED_IT)
return;
msgDebug("Unmounting %s from /cdrom\n", dev->devname);
if (unmount("/cdrom", MNT_FORCE) != 0) {
msgConfirm("Could not unmount the CDROM from /cdrom: %s", strerror(errno));
cdromMounted = CD_ALREADY_MOUNTED; /* Guess somebody else got it */
}
else {
msgDebug("Unmount successful\n");
cdromMounted = CD_UNMOUNTED;
}
}
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