mirror of
https://git.hardenedbsd.org/hardenedbsd/HardenedBSD.git
synced 2024-11-27 11:20:58 +01:00
78 lines
2.9 KiB
C
78 lines
2.9 KiB
C
|
|
/*
|
|
* db_sysctl.c
|
|
*
|
|
* Copyright (c) 2000 Whistle Communications, Inc.
|
|
* All rights reserved.
|
|
*
|
|
* Subject to the following obligations and disclaimer of warranty, use and
|
|
* redistribution of this software, in source or object code forms, with or
|
|
* without modifications are expressly permitted by Whistle Communications;
|
|
* provided, however, that:
|
|
* 1. Any and all reproductions of the source or object code must include the
|
|
* copyright notice above and the following disclaimer of warranties; and
|
|
* 2. No rights are granted, in any manner or form, to use Whistle
|
|
* Communications, Inc. trademarks, including the mark "WHISTLE
|
|
* COMMUNICATIONS" on advertising, endorsements, or otherwise except as
|
|
* such appears in the above copyright notice or in the software.
|
|
*
|
|
* THIS SOFTWARE IS BEING PROVIDED BY WHISTLE COMMUNICATIONS "AS IS", AND
|
|
* TO THE MAXIMUM EXTENT PERMITTED BY LAW, WHISTLE COMMUNICATIONS MAKES NO
|
|
* REPRESENTATIONS OR WARRANTIES, EXPRESS OR IMPLIED, REGARDING THIS SOFTWARE,
|
|
* INCLUDING WITHOUT LIMITATION, ANY AND ALL IMPLIED WARRANTIES OF
|
|
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, OR NON-INFRINGEMENT.
|
|
* WHISTLE COMMUNICATIONS DOES NOT WARRANT, GUARANTEE, OR MAKE ANY
|
|
* REPRESENTATIONS REGARDING THE USE OF, OR THE RESULTS OF THE USE OF THIS
|
|
* SOFTWARE IN TERMS OF ITS CORRECTNESS, ACCURACY, RELIABILITY OR OTHERWISE.
|
|
* IN NO EVENT SHALL WHISTLE COMMUNICATIONS BE LIABLE FOR ANY DAMAGES
|
|
* RESULTING FROM OR ARISING OUT OF ANY USE OF THIS SOFTWARE, INCLUDING
|
|
* WITHOUT LIMITATION, ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY,
|
|
* PUNITIVE, OR CONSEQUENTIAL DAMAGES, PROCUREMENT OF SUBSTITUTE GOODS OR
|
|
* SERVICES, LOSS OF USE, DATA OR PROFITS, HOWEVER CAUSED AND UNDER 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 WHISTLE COMMUNICATIONS IS ADVISED OF THE POSSIBILITY
|
|
* OF SUCH DAMAGE.
|
|
*
|
|
* Author: Archie Cobbs <archie@whistle.com>
|
|
*
|
|
* $FreeBSD$
|
|
*/
|
|
|
|
#include <sys/param.h>
|
|
#include <sys/systm.h>
|
|
#include <sys/kernel.h>
|
|
#include <sys/sysctl.h>
|
|
#include <sys/reboot.h>
|
|
|
|
#define DESCRIPTION "Set to `ddb' or `gdb' to enter the kernel debugger"
|
|
#define READ_MODE ""
|
|
#define MODE_DDB "ddb"
|
|
#define MODE_GDB "gdb"
|
|
|
|
static int
|
|
sysctl_debug_enter_debugger(SYSCTL_HANDLER_ARGS)
|
|
{
|
|
char dmode[64];
|
|
int error;
|
|
|
|
strncpy(dmode, READ_MODE, sizeof(dmode) - 1);
|
|
dmode[sizeof(dmode) - 1] = '\0';
|
|
error = sysctl_handle_string(oidp, &dmode[0], sizeof(dmode), req);
|
|
|
|
if (error == 0 && req->newptr != NULL) {
|
|
if (strcmp(dmode, MODE_DDB) == 0)
|
|
boothowto &= ~RB_GDB;
|
|
else if (strcmp(dmode, MODE_GDB) == 0)
|
|
boothowto |= RB_GDB;
|
|
else
|
|
return EINVAL;
|
|
Debugger("debug.enter_debugger");
|
|
}
|
|
return error;
|
|
}
|
|
|
|
SYSCTL_PROC(_debug, OID_AUTO, enter_debugger, CTLTYPE_STRING | CTLFLAG_RW,
|
|
0, 0, sysctl_debug_enter_debugger, "A", DESCRIPTION);
|
|
|