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+
+/******************************************************************************
+*
+* Copyright 2000 Sistina Software, Inc.
+* Tiny bits Copyright 2000 Alan Robertson <alanr@unix.sh>
+* Tiny bits Copyright 2000 Zac Sprackett, VA Linux Systems
+* Tiny bits Copyright 2005 International Business Machines
+* Significantly Mangled by Sun Jiang Dong <sunjd@cn.ibm.com>, IBM, 2005
+*
+* This is free software released under the GNU General Public License.
+* There is no warranty for this software. See the file COPYING for
+* details.
+*
+* See the file CONTRIBUTORS for a list of contributors.
+*
+* This file is maintained by:
+* Michael C Tilstra <conrad@sistina.com>
+*
+* Becasue I have no device to test, now I just make it pass the compiling
+* with vacm-2.0.5a. Please review before using.
+* Sun Jiang Dong <sunjd@cn.ibm.com>, IBM, 2005
+*
+* This module provides a driver for the VA Linux Cluster Manager.
+* For more information on VACM, see http://vacm.sourceforge.net/
+*
+* This module is rather poorly commented. But if you've read the
+* VACM Manual, and looked at the code example they have, this
+* should make pretty clean sense. (You obiviously should have
+* looked at the other stonith source too)
+*
+*/
+
+/*
+ * 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., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#define DEVICE "VA Linux Cluster Manager"
+
+#include "stonith_plugin_common.h"
+#include "vacmclient_api.h"
+
+#define PIL_PLUGIN vacm
+#define PIL_PLUGIN_S "vacm"
+#define PIL_PLUGINLICENSE LICENSE_LGPL
+#define PIL_PLUGINLICENSEURL URL_LGPL
+#include <pils/plugin.h>
+
+static StonithPlugin * vacm_new(const char *);
+static void vacm_destroy(StonithPlugin *);
+static const char * const * vacm_get_confignames(StonithPlugin *);
+static int vacm_set_config(StonithPlugin *, StonithNVpair *);
+static const char * vacm_getinfo(StonithPlugin * s, int InfoType);
+static int vacm_status(StonithPlugin * );
+static int vacm_reset_req(StonithPlugin * s, int request, const char * host);
+static char ** vacm_hostlist(StonithPlugin *);
+
+static struct stonith_ops vacmOps ={
+ vacm_new, /* Create new STONITH object */
+ vacm_destroy, /* Destroy STONITH object */
+ vacm_getinfo, /* Return STONITH info string */
+ vacm_get_confignames, /* Return configuration parameters */
+ vacm_set_config, /* Set configuration */
+ vacm_status, /* Return STONITH device status */
+ vacm_reset_req, /* Request a reset */
+ vacm_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
+ , &vacmOps
+ , NULL /*close */
+ , &OurInterface
+ , (void*)&OurImports
+ , &interfprivate);
+}
+
+/*structs*/
+struct pluginDevice {
+ StonithPlugin sp;
+ const char * pluginid;
+ const char * idinfo;
+ void *h; /* a handle to the nexxus. */
+ char * nexxus;
+ char * user;
+ char * passwd;
+};
+
+#define ST_NEXXUS "nexxus"
+
+static const char * pluginid = "VACMDevice-Stonith";
+static const char * NOTpluginid = "VACM device has been destroyed";
+
+#include "stonith_config_xml.h"
+
+#define XML_NEXXUS_SHORTDESC \
+ XML_PARM_SHORTDESC_BEGIN("en") \
+ ST_NEXXUS \
+ XML_PARM_SHORTDESC_END
+
+#define XML_NEXXUS_LONGDESC \
+ XML_PARM_LONGDESC_BEGIN("en") \
+ "The Nexxus component of the VA Cluster Manager" \
+ XML_PARM_LONGDESC_END
+
+#define XML_NEXXUS_PARM \
+ XML_PARAMETER_BEGIN(ST_NEXXUS, "string", "1", "1") \
+ XML_NEXXUS_SHORTDESC \
+ XML_NEXXUS_LONGDESC \
+ XML_PARAMETER_END
+
+static const char *vacmXML =
+ XML_PARAMETERS_BEGIN
+ XML_NEXXUS_PARM
+ XML_LOGIN_PARM
+ XML_PASSWD_PARM
+ XML_PARAMETERS_END;
+
+/*funcs*/
+int
+vacm_status(StonithPlugin *s)
+{
+ struct pluginDevice *sd;
+ char snd[] = "NEXXUS:VERSION";
+ char *rcv, *tk;
+ int rcvlen;
+
+ ERRIFWRONGDEV(s,S_OOPS);
+ sd = (struct pluginDevice*)s;
+
+ /* If grabbing the nexxus version works, then the status must be ok.
+ * right?
+ */
+
+ api_nexxus_send_ipc(sd->h, snd, strlen(snd)+1);
+ while(1) {
+ if (api_nexxus_wait_for_data(sd->h, &rcv, &rcvlen, 20)<0) {
+ break;
+ }
+ if (!(tk = strtok(rcv,":"))) { /*NEXXUS*/
+ break;
+ }else if (!(tk=strtok(NULL,":"))) { /* Job ID */
+ break;
+ }else if (!(tk=strtok(NULL,":"))) { /* one of the below */
+ break;
+ } else if ( !strcmp(tk, "JOB_COMPLETED")) {
+ free(rcv);
+ return S_OK; /* YEAH!! */
+ }else if(!strcmp(tk, "JOB_STARTED")) {
+ free(rcv);
+ continue;
+ }else if(!strcmp(tk, "JOB_ERROR")) {
+ free(rcv);
+ break;
+ }else if(!strcmp(tk, "VERSION")) {
+ free(rcv);
+ continue;
+ } else {
+ LOG(PIL_CRIT, "Unexpected token \"%s\" in line \"%s\"\n"
+ , tk, rcv);
+ break;
+ }
+ }
+
+ return S_OOPS;
+}
+
+/* Better make sure the current group is correct.
+ * Can't think of a good way to do this.
+ */
+char **
+vacm_hostlist(StonithPlugin *s)
+{
+ struct pluginDevice *sd;
+ char snd[] = "NEXXUS:NODE_LIST";
+ char *rcv,*tk;
+ int rcvlen;
+ char ** hlst=NULL;
+ int hacnt=0, hrcnt=0;
+#define MSTEP 20
+
+ ERRIFWRONGDEV(s, NULL);
+ sd = (struct pluginDevice*)s;
+
+ hlst = (char **)MALLOC(MSTEP * sizeof(char*));
+ if (hlst == NULL) {
+ LOG(PIL_CRIT, "out of memory");
+ return NULL;
+ }
+ hacnt=MSTEP;
+
+ api_nexxus_send_ipc(sd->h, snd, strlen(snd)+1);
+ while(1) {
+ if(api_nexxus_wait_for_data(sd->h, &rcv, &rcvlen, 20)<0) {
+ goto HL_cleanup;
+ }
+ if(!(tk=strtok(rcv, ":"))) { /* NEXXUS */
+ goto HL_cleanup;
+ }else if(!(tk=strtok(NULL,":"))) { /* Job ID */
+ goto HL_cleanup;
+ }else if(!(tk=strtok(NULL,":"))) { /* JOB_* or NODELIST */
+ goto HL_cleanup;
+ }else if( !strcmp(tk, "JOB_STARTED")) {
+ free(rcv);
+ continue;
+ }else if( !strcmp(tk, "JOB_COMPLETED")) {
+ free(rcv);
+ return hlst;
+ }else if( !strcmp(tk, "JOB_ERROR")) {
+ free(rcv);
+ break;
+ }else if( !strcmp(tk, "NODELIST")) {
+ if(!(tk = strtok(NULL,":"))) { /* group */
+ goto HL_cleanup;
+ }else if((tk = strtok(NULL," \t\n\r"))) { /*Finally, a machine name.*/
+ if( hrcnt >= (hacnt-1)) { /* grow array. */
+ char **oldhlst = hlst;
+ hlst = (char **)REALLOC(hlst, (hacnt +MSTEP)*sizeof(char*));
+ if( !hlst ) {
+ stonith_free_hostlist(oldhlst);
+ return NULL;
+ }
+ hacnt += MSTEP;
+ }
+ hlst[hrcnt] = STRDUP(tk); /* stuff the name. */
+ hlst[hrcnt+1] = NULL; /* set next to NULL for looping */
+ if (hlst[hrcnt] == NULL) {
+ stonith_free_hostlist(hlst);
+ return NULL;
+ }
+ strdown(hlst[hrcnt]);
+ hrcnt++;
+ }
+ }else {
+ /* WTF?! */
+ LOG(PIL_CRIT, "Unexpected token \"%s\" in line \"%s\"\n",tk,rcv);
+ break;
+ }
+ }
+
+HL_cleanup:
+ stonith_free_hostlist(hlst); /* give the mem back */
+ return NULL;
+}
+
+#define SND_SIZE 256
+int
+vacm_reset_req(StonithPlugin *s, int request, const char *host)
+{
+ struct pluginDevice *sd;
+ char snd[SND_SIZE]; /* god forbid its bigger than this */
+ char *rcv, *tk;
+ int rcvlen;
+
+ ERRIFWRONGDEV(s,S_OOPS);
+ sd = (struct pluginDevice*)s;
+
+ switch(request) {
+#ifdef ST_POWERON
+ case ST_POWERON:
+ snprintf(snd, SND_SIZE, "EMP:POWER_ON:%s", host);
+ break;
+#endif /*ST_POWERON*/
+#ifdef ST_POWEROFF
+ case ST_POWEROFF:
+ snprintf(snd, SND_SIZE, "EMP:POWER_OFF:%s", host);
+ break;
+#endif /*ST_POWEROFF*/
+ case ST_GENERIC_RESET:
+ snprintf(snd, SND_SIZE, "EMP:POWER_CYCLE:%s", host);
+ break;
+ default:
+ return S_INVAL;
+ }
+
+ api_nexxus_send_ipc(sd->h, snd, strlen(snd)+1);
+ while(1) {
+ if (api_nexxus_wait_for_data(sd->h, &rcv, &rcvlen, 20)<0) {
+ return S_RESETFAIL;
+ }
+ if (!(tk = strtok(rcv,":"))) { /*EMP*/
+ break;
+ }else if (!(tk=strtok(NULL,":"))) { /* Job ID */
+ break;
+ }else if (!(tk=strtok(NULL,":"))) { /* one of teh below */
+ break;
+ } else if ( !strcmp(tk, "JOB_COMPLETED")) {
+ free(rcv);
+ return S_OK;
+ } else if(!strcmp(tk, "JOB_STARTED")) {
+ free(rcv);
+ continue;
+ } else if(!strcmp(tk, "JOB_ERROR")) {
+ free(rcv);
+ return S_RESETFAIL;
+ } else {
+ /* WTF?! */
+ LOG(PIL_CRIT, "Unexpected token \"%s\" in line \"%s\"\n"
+ , tk, rcv);
+ break;
+ }
+ }
+
+ return S_RESETFAIL;
+}
+
+/* list => "nexxus:username:password" */
+static const char * const *
+vacm_get_confignames(StonithPlugin * s)
+{
+ static const char * ret[] = {ST_NEXXUS, ST_LOGIN, ST_PASSWD, NULL};
+ return ret;
+}
+
+static int
+vacm_set_config(StonithPlugin *s, StonithNVpair * list)
+{
+ struct pluginDevice* sd = (struct pluginDevice *)s;
+ int rc;
+ StonithNamesToGet namestocopy [] =
+ { {ST_NEXXUS, NULL}
+ , {ST_LOGIN, NULL}
+ , {ST_PASSWD, NULL}
+ , {NULL, NULL}
+ };
+ char *rcv;
+ int rcvlen;
+
+ ERRIFWRONGDEV(s, S_OOPS);
+ if (sd->sp.isconfigured) {
+ return S_OOPS;
+ }
+
+ if ((rc=OurImports->CopyAllValues(namestocopy, list)) != S_OK) {
+ return rc;
+ }
+ sd->nexxus = namestocopy[0].s_value;
+ sd->user = namestocopy[1].s_value;
+ sd->passwd = namestocopy[2].s_value;
+ /* When to initialize the sd->h */
+
+ if (api_nexxus_connect(sd->nexxus, sd->user, sd->passwd, &sd->h)<0){
+ return S_OOPS;
+ }
+ if (api_nexxus_wait_for_data(sd->h, &rcv, &rcvlen, 20)<0) {
+ return S_OOPS;
+ }
+ if (strcmp(rcv, "NEXXUS_READY")) {
+ rc = S_BADCONFIG;
+ }else{
+ rc = S_OK;
+ }
+ free(rcv);
+
+ return(rc);
+}
+
+/*
+ * The "vacmconf:" is in the conffile so that one file could be used for
+ * multiple device configs. This module will only look at the first line
+ * that starts with this token. All other line are ignored. (and thus
+ * could contain configs for other modules.)
+ *
+ * I don't think any other stonith modules do this currently.
+ */
+const char *
+vacm_getinfo(StonithPlugin *s, int reqtype)
+{
+ struct pluginDevice* sd = (struct pluginDevice *)s;
+ const char * ret;
+
+ ERRIFWRONGDEV(s, NULL);
+ switch (reqtype) {
+
+ case ST_DEVICEID: /* What type of device? */
+ ret = sd->idinfo;
+ break;
+
+ case ST_DEVICENAME: /* Which particular device? */
+ ret = dgettext(ST_TEXTDOMAIN, "VACM");
+ break;
+
+ case ST_DEVICEDESCR: /* Description of dev type */
+ ret = "A driver for the VA Linux Cluster Manager.";
+ break;
+
+ case ST_DEVICEURL: /* VACM's web site */
+ ret = "http://vacm.sourceforge.net/";
+ break;
+
+ case ST_CONF_XML: /* XML metadata */
+ ret = vacmXML;
+ break;
+
+ default:
+ ret = NULL;
+ break;
+ }
+
+ return ret;
+}
+
+void
+vacm_destroy(StonithPlugin *s)
+{
+ struct pluginDevice *sd;
+
+ VOIDERRIFWRONGDEV(s);
+ sd = (struct pluginDevice*)s;
+
+ if( sd->h ) {
+ api_nexxus_disconnect(sd->h);
+ }
+
+ sd->pluginid = NOTpluginid;
+ if (sd->nexxus != NULL) {
+ FREE(sd->nexxus);
+ sd->nexxus = NULL;
+ }
+ if (sd->user != NULL) {
+ FREE(sd->user);
+ sd->user = NULL;
+ }
+ if (sd->passwd != NULL) {
+ FREE(sd->passwd);
+ sd->passwd = NULL;
+ }
+
+ FREE(sd);
+}
+
+static StonithPlugin *
+vacm_new(const char *subplugin)
+{
+ struct pluginDevice *sd;
+
+ sd = MALLOC(sizeof(struct pluginDevice));
+ if (sd == NULL) {
+ LOG(PIL_CRIT, "out of memory");
+ return(NULL);
+ }
+ memset(sd, 0, sizeof(*sd));
+ sd->h = NULL;
+ sd->pluginid = pluginid;
+ sd->nexxus = NULL;
+ sd->user = NULL;
+ sd->passwd = NULL;
+ sd->idinfo = DEVICE;
+ sd->sp.s_ops = &vacmOps;
+ return &(sd->sp); /* same as "sd" */
+}