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/*
* nvidia-installer: A tool for installing NVIDIA software packages on
* Unix and Linux systems.
*
* Copyright (C) 2003 NVIDIA Corporation
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License as
* published by the Free Software Foundation; either version 2 of the
* License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the:
*
* Free Software Foundation, Inc.
* 59 Temple Place - Suite 330
* Boston, MA 02111-1307, USA
*
*
* sanity.c
*/
#include "nvidia-installer.h"
#include "command-list.h"
#include "user-interface.h"
#include "backup.h"
#include "misc.h"
#include "sanity.h"
#include <sys/types.h>
#include <sys/shm.h>
#include <unistd.h>
#include <errno.h>
#include <string.h>
/*
* sanity() - perform sanity tests on an existing installation
*/
int sanity(Options *op)
{
char *descr, *version;
int ret;
/* check that there's a driver installed at all */
ret = get_installed_driver_version_and_descr(op, &version, &descr);
if (!ret) {
ui_error(op, "Unable to find any installed NVIDIA driver. The sanity "
"check feature is only intended to be used with an existing "
"NVIDIA driver installation.");
return FALSE;
}
ui_message(op, "The currently installed driver is: '%s' "
"(version: %s). nvidia-installer will now check "
"that all installed files still exist.",
descr, version);
/* check that all the files are still where we placed them */
if (!test_installed_files(op)) {
ui_message(op, "The '%s' installation has been altered "
"since it was originally installed. It is recommended "
"that you reinstall.", descr);
return FALSE;
}
/* check that shared memory works */
if (!check_sysvipc(op)) return FALSE;
/*
* XXX There are lots of additional tests that could be added:
*
* - check for any conflicting libraries
*
* - check that the permissions on the /dev/nvidia* files haven't
* been screwed up by pam
*
* - check that /dev/zero has appropriate permissions
*
* - check for possible kernel config problems (IPC, mtrr support,
* etc).
*/
ui_message(op, "'%s' (version: %s) appears to be installed "
"correctly.", descr, version);
nvfree(descr);
nvfree(version);
return TRUE;
} /* sanity() */
/*
* check_sysvipc() - test that shmat() and friends work
*/
int check_sysvipc(Options *op)
{
int shmid = -1;
int ret = FALSE;
int size = sysconf(_SC_PAGESIZE);
void *address = (void *) -1;
shmid = shmget(IPC_PRIVATE, size, IPC_CREAT | 0777);
if (shmid == -1) goto done;
address = shmat(shmid, 0, 0);
if (address == (void *) -1) goto done;
ret = TRUE;
done:
if (shmid != -1) shmctl(shmid, IPC_RMID, 0);
if (address != (void *) -1) shmdt(address);
if (ret) {
ui_log(op, "Shared memory test passed.");
} else {
ui_message(op, "Shared memory test failed (%s): please check that "
"your kernel has CONFIG_SYSVIPC enabled.", strerror(errno));
}
return ret;
} /* check_sysvipc() */
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