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Diffstat (limited to 'lib/plugins/stonith/null.c')
| -rw-r--r-- | lib/plugins/stonith/null.c | 260 |
1 files changed, 260 insertions, 0 deletions
diff --git a/lib/plugins/stonith/null.c b/lib/plugins/stonith/null.c new file mode 100644 index 0000000..0d0cf04 --- /dev/null +++ b/lib/plugins/stonith/null.c @@ -0,0 +1,260 @@ +/* + * 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; +} |