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/*
* Stonith module for NULL Stonith device
*
* Copyright (c) 2000 Alan Robertson <alanr@unix.sh>
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library 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
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*
*/
#include <lha_internal.h>
#define DEVICE "NULL STONITH device"
#include "stonith_plugin_common.h"
#define PIL_PLUGIN null
#define PIL_PLUGIN_S "null"
#define PIL_PLUGINLICENSE LICENSE_LGPL
#define PIL_PLUGINLICENSEURL URL_LGPL
#include <pils/plugin.h>
struct pluginDevice {
StonithPlugin sp;
const char * pluginid;
const char * idinfo;
char ** hostlist;
int hostcount;
};
static StonithPlugin* null_new(const char *);
static void null_destroy(StonithPlugin *);
static int null_set_config(StonithPlugin*
, StonithNVpair*);
static const char * const * null_get_confignames(StonithPlugin*);
static const char * null_getinfo(StonithPlugin * s, int InfoType);
static int null_status(StonithPlugin * );
static int null_reset_req(StonithPlugin * s
, int request, const char * host);
static char ** null_hostlist(StonithPlugin *);
static struct stonith_ops nullOps ={
null_new, /* Create new STONITH object */
null_destroy, /* Destroy STONITH object */
null_getinfo, /* Return STONITH info string */
null_get_confignames, /* Return list of config params */
null_set_config, /* configure fron NV pairs */
null_status, /* Return STONITH device status */
null_reset_req, /* Request a reset */
null_hostlist, /* Return list of supported hosts */
};
PIL_PLUGIN_BOILERPLATE2("1.0", Debug)
static const PILPluginImports* PluginImports;
static PILPlugin* OurPlugin;
static PILInterface* OurInterface;
static StonithImports* OurImports;
static void* interfprivate;
PIL_rc
PIL_PLUGIN_INIT(PILPlugin*us, const PILPluginImports* imports);
PIL_rc
PIL_PLUGIN_INIT(PILPlugin*us, const PILPluginImports* imports)
{
/* Force the compiler to do a little type checking */
(void)(PILPluginInitFun)PIL_PLUGIN_INIT;
PluginImports = imports;
OurPlugin = us;
/* Register ourself as a plugin */
imports->register_plugin(us, &OurPIExports);
/* Register our interface implementation */
return imports->register_interface(us, PIL_PLUGINTYPE_S
, PIL_PLUGIN_S
, &nullOps
, NULL /*close */
, &OurInterface
, (void*)&OurImports
, &interfprivate);
}
/*
* Null STONITH device. We are very agreeable, but don't do much :-)
*/
static const char * pluginid = "nullDevice-Stonith";
static const char * NOTpluginID = "Null device has been destroyed";
#include "stonith_config_xml.h"
static const char *nullXML =
XML_PARAMETERS_BEGIN
XML_HOSTLIST_PARM
XML_PARAMETERS_END;
static int
null_status(StonithPlugin *s)
{
ERRIFWRONGDEV(s, S_OOPS);
return S_OK;
}
/*
* Return the list of hosts configured for this NULL device
*/
static char **
null_hostlist(StonithPlugin *s)
{
struct pluginDevice* nd = (struct pluginDevice*)s;
ERRIFWRONGDEV(s, NULL);
return OurImports->CopyHostList((const char * const *)nd->hostlist);
}
/*
* Pretend to reset the given host on this Stonith device.
* (we don't even error check the "request" type)
*/
static int
null_reset_req(StonithPlugin * s, int request, const char * host)
{
ERRIFWRONGDEV(s,S_OOPS);
/* Real devices need to pay attention to the "request" */
/* (but we don't care ;-)) */
LOG(PIL_INFO, "Host null-reset: %s", host);
return S_OK;
}
static const char * const *
null_get_confignames(StonithPlugin* p)
{
static const char * NullParams[] = {ST_HOSTLIST, NULL };
return NullParams;
}
/*
* Parse the config information in the given string,
* and stash it away...
*/
static int
null_set_config(StonithPlugin* s, StonithNVpair* list)
{
struct pluginDevice* nd = (struct pluginDevice*) s;
StonithNamesToGet namestocopy [] =
{ {ST_HOSTLIST, NULL}
, {NULL, NULL}
};
int rc;
ERRIFWRONGDEV(s, S_OOPS);
if ((rc=OurImports->CopyAllValues(namestocopy, list)) != S_OK) {
return rc;
}
nd->hostlist = OurImports->StringToHostList(namestocopy[0].s_value);
FREE(namestocopy[0].s_value);
if (nd->hostlist == NULL) {
LOG(PIL_CRIT,"StringToHostList() failed");
return S_OOPS;
}
for (nd->hostcount = 0; nd->hostlist[nd->hostcount]
; nd->hostcount++) {
strdown(nd->hostlist[nd->hostcount]);
}
return nd->hostcount ? S_OK : S_BADCONFIG;
}
static const char *
null_getinfo(StonithPlugin * s, int reqtype)
{
struct pluginDevice* nd = (struct pluginDevice*) s;
const char * ret;
ERRIFWRONGDEV(s, NULL);
switch (reqtype) {
case ST_DEVICEID:
ret = nd->idinfo;
break;
case ST_DEVICENAME:
ret = "(nil)";
break;
case ST_DEVICEDESCR:
ret = "Dummy (do-nothing) STONITH device\n"
"FOR TESTING ONLY!";
break;
case ST_CONF_XML: /* XML metadata */
ret = nullXML;
break;
default:
ret = NULL;
break;
}
return ret;
}
/*
* NULL Stonith destructor...
*/
static void
null_destroy(StonithPlugin *s)
{
struct pluginDevice* nd;
VOIDERRIFWRONGDEV(s);
nd = (struct pluginDevice *)s;
nd->pluginid = NOTpluginID;
if (nd->hostlist) {
stonith_free_hostlist(nd->hostlist);
nd->hostlist = NULL;
}
nd->hostcount = -1;
FREE(s);
}
/* Create a new Null Stonith device.
* Too bad this function can't be static
*/
static StonithPlugin *
null_new(const char *subplugin)
{
struct pluginDevice* nd = ST_MALLOCT(struct pluginDevice);
if (nd == NULL) {
LOG(PIL_CRIT, "out of memory");
return(NULL);
}
memset(nd, 0, sizeof(*nd));
nd->pluginid = pluginid;
nd->idinfo = DEVICE;
nd->sp.s_ops = &nullOps;
return (StonithPlugin *)nd;
}
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