Add simple tests which verify that redzone(9) works properly.
This commit is contained in:
parent
847a2a1716
commit
551fdafaf4
Notes:
svn2git
2020-12-20 02:59:44 +00:00
svn path=/head/; revision=155087
6
tools/regression/redzone9/Makefile
Normal file
6
tools/regression/redzone9/Makefile
Normal file
@ -0,0 +1,6 @@
|
||||
# $FreeBSD$
|
||||
|
||||
KMOD= redzone
|
||||
SRCS= redzone.c
|
||||
|
||||
.include <bsd.kmod.mk>
|
10
tools/regression/redzone9/README
Normal file
10
tools/regression/redzone9/README
Normal file
@ -0,0 +1,10 @@
|
||||
$FreeBSD$
|
||||
|
||||
To verify that redzone(9) works properly:
|
||||
|
||||
# make
|
||||
# make install
|
||||
# kldload redzone
|
||||
# sh test.sh
|
||||
|
||||
And look at the logs/console output.
|
141
tools/regression/redzone9/redzone.c
Normal file
141
tools/regression/redzone9/redzone.c
Normal file
@ -0,0 +1,141 @@
|
||||
/*-
|
||||
* Copyright (c) 2006 Pawel Jakub Dawidek <pjd@FreeBSD.org>
|
||||
* 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.
|
||||
* 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 THE AUTHORS AND CONTRIBUTORS ``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 THE AUTHORS OR CONTRIBUTORS 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, 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.
|
||||
*/
|
||||
|
||||
#include <sys/cdefs.h>
|
||||
__FBSDID("$FreeBSD$");
|
||||
|
||||
#include <sys/param.h>
|
||||
#include <sys/systm.h>
|
||||
#include <sys/kernel.h>
|
||||
#include <sys/linker.h>
|
||||
#include <sys/module.h>
|
||||
#include <sys/malloc.h>
|
||||
#include <sys/sysctl.h>
|
||||
|
||||
|
||||
SYSCTL_NODE(_debug, OID_AUTO, redzone, CTLFLAG_RW, 0, "");
|
||||
|
||||
#define REDZONE_MALLOC_UNDERFLOW 0
|
||||
#define REDZONE_MALLOC_OVERFLOW 1
|
||||
#define REDZONE_REALLOC_SMALLER_UNDERFLOW 2
|
||||
#define REDZONE_REALLOC_SMALLER_OVERFLOW 3
|
||||
#define REDZONE_REALLOC_BIGGER_UNDERFLOW 4
|
||||
#define REDZONE_REALLOC_BIGGER_OVERFLOW 5
|
||||
|
||||
static int
|
||||
redzone_sysctl(SYSCTL_HANDLER_ARGS)
|
||||
{
|
||||
u_char *p = NULL;
|
||||
int error, val = 0;
|
||||
|
||||
error = sysctl_handle_int(oidp, &val, sizeof(val), req);
|
||||
if (error != 0 || req->newptr == NULL)
|
||||
return (0);
|
||||
switch (arg2) {
|
||||
case REDZONE_MALLOC_UNDERFLOW:
|
||||
p = malloc(10, M_TEMP, M_NOWAIT);
|
||||
if (p == NULL)
|
||||
return (ENOMEM);
|
||||
p[-1] = '\0';
|
||||
break;
|
||||
case REDZONE_MALLOC_OVERFLOW:
|
||||
p = malloc(10, M_TEMP, M_NOWAIT);
|
||||
if (p == NULL)
|
||||
return (ENOMEM);
|
||||
p[10] = '\0';
|
||||
break;
|
||||
case REDZONE_REALLOC_SMALLER_UNDERFLOW:
|
||||
p = malloc(8192, M_TEMP, M_NOWAIT);
|
||||
if (p == NULL)
|
||||
return (ENOMEM);
|
||||
p[-1] = '\0';
|
||||
p = realloc(p, 10, M_TEMP, M_NOWAIT);
|
||||
if (p == NULL)
|
||||
return (ENOMEM);
|
||||
break;
|
||||
case REDZONE_REALLOC_SMALLER_OVERFLOW:
|
||||
p = malloc(8192, M_TEMP, M_NOWAIT);
|
||||
if (p == NULL)
|
||||
return (ENOMEM);
|
||||
p[8192] = '\0';
|
||||
p = realloc(p, 10, M_TEMP, M_NOWAIT);
|
||||
if (p == NULL)
|
||||
return (ENOMEM);
|
||||
break;
|
||||
case REDZONE_REALLOC_BIGGER_UNDERFLOW:
|
||||
p = malloc(10, M_TEMP, M_NOWAIT);
|
||||
if (p == NULL)
|
||||
return (ENOMEM);
|
||||
p[-1] = '\0';
|
||||
p = realloc(p, 8192, M_TEMP, M_NOWAIT);
|
||||
if (p == NULL)
|
||||
return (ENOMEM);
|
||||
break;
|
||||
case REDZONE_REALLOC_BIGGER_OVERFLOW:
|
||||
p = malloc(10, M_TEMP, M_NOWAIT);
|
||||
if (p == NULL)
|
||||
return (ENOMEM);
|
||||
p[10] = '\0';
|
||||
p = realloc(p, 8192, M_TEMP, M_NOWAIT);
|
||||
if (p == NULL)
|
||||
return (ENOMEM);
|
||||
break;
|
||||
}
|
||||
free(p, M_TEMP);
|
||||
return (0);
|
||||
}
|
||||
SYSCTL_PROC(_debug_redzone, OID_AUTO, malloc_underflow, CTLTYPE_INT | CTLFLAG_RW,
|
||||
NULL, REDZONE_MALLOC_UNDERFLOW, redzone_sysctl, "I", "");
|
||||
SYSCTL_PROC(_debug_redzone, OID_AUTO, malloc_overflow, CTLTYPE_INT | CTLFLAG_RW,
|
||||
NULL, REDZONE_MALLOC_OVERFLOW, redzone_sysctl, "I", "");
|
||||
SYSCTL_PROC(_debug_redzone, OID_AUTO, realloc_smaller_underflow, CTLTYPE_INT | CTLFLAG_RW,
|
||||
NULL, REDZONE_REALLOC_SMALLER_UNDERFLOW, redzone_sysctl, "I", "");
|
||||
SYSCTL_PROC(_debug_redzone, OID_AUTO, realloc_smaller_overflow, CTLTYPE_INT | CTLFLAG_RW,
|
||||
NULL, REDZONE_REALLOC_SMALLER_OVERFLOW, redzone_sysctl, "I", "");
|
||||
SYSCTL_PROC(_debug_redzone, OID_AUTO, realloc_bigger_underflow, CTLTYPE_INT | CTLFLAG_RW,
|
||||
NULL, REDZONE_REALLOC_BIGGER_UNDERFLOW, redzone_sysctl, "I", "");
|
||||
SYSCTL_PROC(_debug_redzone, OID_AUTO, realloc_bigger_overflow, CTLTYPE_INT | CTLFLAG_RW,
|
||||
NULL, REDZONE_REALLOC_BIGGER_OVERFLOW, redzone_sysctl, "I", "");
|
||||
|
||||
static int
|
||||
redzone_modevent(module_t mod, int type, void *data)
|
||||
{
|
||||
|
||||
switch (type) {
|
||||
case MOD_LOAD:
|
||||
case MOD_UNLOAD:
|
||||
break;
|
||||
default:
|
||||
return (EOPNOTSUPP);
|
||||
}
|
||||
return (0);
|
||||
}
|
||||
static moduledata_t redzone_module = {
|
||||
"redzone",
|
||||
redzone_modevent,
|
||||
NULL
|
||||
};
|
||||
DECLARE_MODULE(redzone, redzone_module, SI_SUB_DRIVERS, SI_ORDER_MIDDLE);
|
10
tools/regression/redzone9/test.sh
Normal file
10
tools/regression/redzone9/test.sh
Normal file
@ -0,0 +1,10 @@
|
||||
#!/bin/sh
|
||||
#
|
||||
# $FreeBSD$
|
||||
|
||||
sysctl debug.redzone.malloc_underflow=1
|
||||
sysctl debug.redzone.malloc_overflow=1
|
||||
sysctl debug.redzone.realloc_smaller_underflow=1
|
||||
sysctl debug.redzone.realloc_smaller_overflow=1
|
||||
sysctl debug.redzone.realloc_bigger_underflow=1
|
||||
sysctl debug.redzone.realloc_bigger_overflow=1
|
Loading…
Reference in New Issue
Block a user