freebsd-skq/lib/geom/nop/geom_nop.c
chs e8305d1e70 Add a "count_until_fail" option to gnop, which says to start failing
I/O requests after the given number have been allowed though.

Approved by:    imp (mentor)
Reviewed by:    rpokala kib 0mp mckusick
Sponsored by:   Netflix
Differential Revision:  https://reviews.freebsd.org/D21593
2019-09-13 23:03:56 +00:00

93 lines
3.3 KiB
C

/*-
* SPDX-License-Identifier: BSD-2-Clause-FreeBSD
*
* Copyright (c) 2004-2006 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 <stdio.h>
#include <stdint.h>
#include <libgeom.h>
#include <geom/nop/g_nop.h>
#include "core/geom.h"
uint32_t lib_version = G_LIB_VERSION;
uint32_t version = G_NOP_VERSION;
struct g_command class_commands[] = {
{ "create", G_FLAG_VERBOSE | G_FLAG_LOADKLD, NULL,
{
{ 'c', "count_until_fail", "-1", G_TYPE_NUMBER },
{ 'd', "delaymsec", "-1", G_TYPE_NUMBER },
{ 'e', "error", "-1", G_TYPE_NUMBER },
{ 'o', "offset", "0", G_TYPE_NUMBER },
{ 'p', "stripesize", "0", G_TYPE_NUMBER },
{ 'P', "stripeoffset", "0", G_TYPE_NUMBER },
{ 'q', "rdelayprob", "-1", G_TYPE_NUMBER },
{ 'r', "rfailprob", "-1", G_TYPE_NUMBER },
{ 's', "size", "0", G_TYPE_NUMBER },
{ 'S', "secsize", "0", G_TYPE_NUMBER },
{ 'w', "wfailprob", "-1", G_TYPE_NUMBER },
{ 'x', "wdelayprob", "-1", G_TYPE_NUMBER },
{ 'z', "physpath", G_NOP_PHYSPATH_PASSTHROUGH, G_TYPE_STRING },
G_OPT_SENTINEL
},
"[-v] [-c count_until_fail] [-d delaymsec] [-e error] [-o offset] "
"[-p stripesize] [-P stripeoffset] [-q rdelayprob] [-r rfailprob] "
"[-s size] [-S secsize] [-w wfailprob] [-x wdelayprob] "
"[-z physpath] dev ..."
},
{ "configure", G_FLAG_VERBOSE, NULL,
{
{ 'c', "count_until_fail", "-1", G_TYPE_NUMBER },
{ 'd', "delaymsec", "-1", G_TYPE_NUMBER },
{ 'e', "error", "-1", G_TYPE_NUMBER },
{ 'q', "rdelayprob", "-1", G_TYPE_NUMBER },
{ 'r', "rfailprob", "-1", G_TYPE_NUMBER },
{ 'w', "wfailprob", "-1", G_TYPE_NUMBER },
{ 'x', "wdelayprob", "-1", G_TYPE_NUMBER },
G_OPT_SENTINEL
},
"[-v] [-c count_until_fail] [-d delaymsec] [-e error] "
"[-q rdelayprob] [-r rfailprob] [-w wfailprob] [-x wdelayprob] "
"prov ..."
},
{ "destroy", G_FLAG_VERBOSE, NULL,
{
{ 'f', "force", NULL, G_TYPE_BOOL },
G_OPT_SENTINEL
},
"[-fv] prov ..."
},
{ "reset", G_FLAG_VERBOSE, NULL, G_NULL_OPTS,
"[-v] prov ..."
},
G_CMD_SENTINEL
};