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* src/xen_unified.c et al: Unified Xen driver. Architecture described here: https://www.redhat.com/archives/libvir-list/2007-March/msg00396.html
2282 lines
70 KiB
C
2282 lines
70 KiB
C
/*
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* xm_internal.h: helper routines for dealing with inactive domains
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*
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* Copyright (C) 2006-2007 Red Hat
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* Copyright (C) 2006 Daniel P. Berrange
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*
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* Author: Daniel P. Berrange <berrange@redhat.com>
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*
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*/
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#ifdef WITH_XEN
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#include <dirent.h>
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#include <time.h>
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#include <sys/stat.h>
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#include <unistd.h>
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#include <stdint.h>
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#include <xen/dom0_ops.h>
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#include <libxml/parser.h>
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#include <libxml/tree.h>
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#include <libxml/xpath.h>
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#include "xen_unified.h"
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#include "xm_internal.h"
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#include "xend_internal.h"
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#include "conf.h"
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#include "hash.h"
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#include "internal.h"
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#include "xml.h"
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typedef struct xenXMConfCache *xenXMConfCachePtr;
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typedef struct xenXMConfCache {
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time_t refreshedAt;
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char filename[PATH_MAX];
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virConfPtr conf;
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} xenXMConfCache;
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static char configDir[PATH_MAX];
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/* Config file name to config object */
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static virHashTablePtr configCache = NULL;
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/* Name to config file name */
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static virHashTablePtr nameConfigMap = NULL;
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static int nconnections = 0;
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static time_t lastRefresh = 0;
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#define XM_REFRESH_INTERVAL 10
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#define XM_CONFIG_DIR "/etc/xen"
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#define XM_EXAMPLE_PREFIX "xmexample"
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#define XEND_CONFIG_FILE "xend-config.sxp"
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#define XEND_PCI_CONFIG_PREFIX "xend-pci-"
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#define QEMU_IF_SCRIPT "qemu-ifup"
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virDriver xenXMDriver = {
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-1,
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"XenXM",
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(DOM0_INTERFACE_VERSION >> 24) * 1000000 +
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((DOM0_INTERFACE_VERSION >> 16) & 0xFF) * 1000 +
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(DOM0_INTERFACE_VERSION & 0xFFFF),
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xenXMOpen, /* open */
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xenXMClose, /* close */
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xenXMGetType, /* type */
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NULL, /* version */
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NULL, /* getMaxVcpus */
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NULL, /* nodeGetInfo */
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NULL, /* getCapabilities */
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NULL, /* listDomains */
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NULL, /* numOfDomains */
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NULL, /* domainCreateLinux */
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NULL, /* domainLookupByID */
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xenXMDomainLookupByUUID, /* domainLookupByUUID */
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xenXMDomainLookupByName, /* domainLookupByName */
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NULL, /* domainSuspend */
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NULL, /* domainResume */
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NULL, /* domainShutdown */
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NULL, /* domainReboot */
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NULL, /* domainDestroy */
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NULL, /* domainGetOSType */
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xenXMDomainGetMaxMemory, /* domainGetMaxMemory */
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xenXMDomainSetMaxMemory, /* domainSetMaxMemory */
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xenXMDomainSetMemory, /* domainMaxMemory */
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xenXMDomainGetInfo, /* domainGetInfo */
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NULL, /* domainSave */
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NULL, /* domainRestore */
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NULL, /* domainCoreDump */
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xenXMDomainSetVcpus, /* domainSetVcpus */
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NULL, /* domainPinVcpu */
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NULL, /* domainGetVcpus */
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NULL, /* domainGetMaxVcpus */
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xenXMDomainDumpXML, /* domainDumpXML */
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xenXMListDefinedDomains, /* listDefinedDomains */
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xenXMNumOfDefinedDomains, /* numOfDefinedDomains */
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xenXMDomainCreate, /* domainCreate */
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xenXMDomainDefineXML, /* domainDefineXML */
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xenXMDomainUndefine, /* domainUndefine */
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NULL, /* domainAttachDevice */
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NULL, /* domainDetachDevice */
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NULL, /* domainGetAutostart */
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NULL, /* domainSetAutostart */
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};
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static void
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xenXMError(virConnectPtr conn, virErrorNumber error, const char *info)
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{
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const char *errmsg;
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if (error == VIR_ERR_OK)
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return;
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errmsg = __virErrorMsg(error, info);
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__virRaiseError(conn, NULL, NULL, VIR_FROM_XEND, error, VIR_ERR_ERROR,
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errmsg, info, NULL, 0, 0, errmsg, info);
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}
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int
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xenXMInit (void)
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{
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char *envConfigDir;
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int safeMode = 0;
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/* Disable use of env variable if running setuid */
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if ((geteuid() != getuid()) ||
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(getegid() != getgid()))
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safeMode = 1;
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if (!safeMode &&
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(envConfigDir = getenv("LIBVIRT_XM_CONFIG_DIR")) != NULL) {
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strncpy(configDir, envConfigDir, PATH_MAX-1);
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configDir[PATH_MAX-1] = '\0';
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} else {
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strcpy(configDir, XM_CONFIG_DIR);
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}
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return 0;
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}
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/* Convenience method to grab a int from the config file object */
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static int xenXMConfigGetInt(virConfPtr conf, const char *name, long *value) {
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virConfValuePtr val;
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if (!value || !name || !conf)
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return (-1);
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if (!(val = virConfGetValue(conf, name))) {
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return (-1);
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}
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if (val->type == VIR_CONF_LONG) {
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*value = val->l;
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} else if (val->type == VIR_CONF_STRING) {
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char *ret;
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if (!val->str)
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return (-1);
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*value = strtol(val->str, &ret, 10);
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if (ret == val->str)
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return (-1);
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} else {
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return (-1);
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}
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return (0);
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}
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/* Convenience method to grab a string from the config file object */
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static int xenXMConfigGetString(virConfPtr conf, const char *name, const char **value) {
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virConfValuePtr val;
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if (!value || !name || !conf)
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return (-1);
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*value = NULL;
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if (!(val = virConfGetValue(conf, name))) {
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return (-1);
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}
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if (val->type != VIR_CONF_STRING)
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return (-1);
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if (!val->str)
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return (-1);
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*value = val->str;
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return (0);
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}
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/* Convenience method to grab a string UUID from the config file object */
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static int xenXMConfigGetUUID(virConfPtr conf, const char *name, unsigned char *uuid) {
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virConfValuePtr val;
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char *rawuuid = (char *)uuid;
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if (!uuid || !name || !conf)
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return (-1);
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if (!(val = virConfGetValue(conf, name))) {
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return (-1);
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}
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if (val->type != VIR_CONF_STRING)
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return (-1);
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if (!val->str)
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return (-1);
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if (!virParseUUID(&rawuuid, val->str))
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return (-1);
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return (0);
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}
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/* Generate a rnadom UUID - used if domain doesn't already
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have one in its config */
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static void xenXMConfigGenerateUUID(unsigned char *uuid) {
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int i;
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for (i = 0 ; i < VIR_UUID_BUFLEN ; i++) {
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uuid[i] = (unsigned char)(1 + (int) (256.0 * (rand() / (RAND_MAX + 1.0))));
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}
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}
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/* Ensure that a config object has a valid UUID in it,
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if it doesn't then (re-)generate one */
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static int xenXMConfigEnsureIdentity(virConfPtr conf, const char *filename) {
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unsigned char uuid[VIR_UUID_BUFLEN];
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const char *name;
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/* Had better have a name...*/
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if (xenXMConfigGetString(conf, "name", &name) < 0) {
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virConfValuePtr value;
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value = malloc(sizeof(virConfValue));
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if (!value) {
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return (-1);
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}
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/* Set name based on filename */
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value->type = VIR_CONF_STRING;
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value->str = strdup(filename);
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if (!value->str) {
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free(value);
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return (-1);
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}
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if (virConfSetValue(conf, "name", value) < 0)
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return (-1);
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}
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/* If there is no uuid...*/
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if (xenXMConfigGetUUID(conf, "uuid", uuid) < 0) {
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virConfValuePtr value;
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char uuidstr[VIR_UUID_STRING_BUFLEN];
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value = malloc(sizeof(virConfValue));
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if (!value) {
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return (-1);
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}
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/* ... then generate one */
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xenXMConfigGenerateUUID(uuid);
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snprintf(uuidstr, VIR_UUID_STRING_BUFLEN,
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"%02x%02x%02x%02x-%02x%02x-%02x%02x-%02x%02x-%02x%02x%02x%02x%02x%02x</uuid>\n",
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uuid[0], uuid[1], uuid[2], uuid[3],
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uuid[4], uuid[5], uuid[6], uuid[7],
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uuid[8], uuid[9], uuid[10], uuid[11],
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uuid[12], uuid[13], uuid[14], uuid[15]);
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uuidstr[VIR_UUID_STRING_BUFLEN-1] = '\0';
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value->type = VIR_CONF_STRING;
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value->str = strdup(uuidstr);
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if (!value->str) {
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free(value);
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return (-1);
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}
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/* And stuff the UUID back into the config file */
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if (virConfSetValue(conf, "uuid", value) < 0)
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return (-1);
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}
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return (0);
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}
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/* Release memory associated with a cached config object */
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static void xenXMConfigFree(void *payload, const char *key ATTRIBUTE_UNUSED) {
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xenXMConfCachePtr entry = (xenXMConfCachePtr)payload;
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virConfFree(entry->conf);
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free(entry);
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}
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/* Remove any configs which were not refreshed recently */
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static int xenXMConfigReaper(const void *payload, const char *key ATTRIBUTE_UNUSED, const void *data) {
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time_t now = *(const time_t *)data;
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xenXMConfCachePtr entry = (xenXMConfCachePtr)payload;
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if (entry->refreshedAt != now) {
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const char *olddomname;
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/* We're going to pure this config file, so check if it
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is currently mapped as owner of a named domain. */
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if (xenXMConfigGetString(entry->conf, "name", &olddomname) != -1) {
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char *nameowner = (char *)virHashLookup(nameConfigMap, olddomname);
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if (nameowner && !strcmp(nameowner, key)) {
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virHashRemoveEntry(nameConfigMap, olddomname, NULL);
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}
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}
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return (1);
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}
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return (0);
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}
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/* This method is called by various methods to scan /etc/xen
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(or whatever directory was set by LIBVIRT_XM_CONFIG_DIR
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environment variable) and process any domain configs. It
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has rate-limited so never rescans more frequently than
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once every X seconds */
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static int xenXMConfigCacheRefresh(void) {
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DIR *dh;
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struct dirent *ent;
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time_t now = time(NULL);
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int ret = -1;
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if (now == ((time_t)-1)) {
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return (-1);
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}
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/* Rate limit re-scans */
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if ((now - lastRefresh) < XM_REFRESH_INTERVAL)
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return (0);
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lastRefresh = now;
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/* Process the files in the config dir */
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if (!(dh = opendir(configDir))) {
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return (-1);
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}
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while ((ent = readdir(dh))) {
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xenXMConfCachePtr entry;
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struct stat st;
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int newborn = 0;
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char path[PATH_MAX];
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const char *domname = NULL;
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/*
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* Skip a bunch of crufty files that clearly aren't config files
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*/
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/* Like 'dot' files... */
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if (!strncmp(ent->d_name, ".", 1))
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continue;
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/* ...and the XenD server config file */
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if (!strncmp(ent->d_name, XEND_CONFIG_FILE, strlen(XEND_CONFIG_FILE)))
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continue;
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/* ...and random PCI config cruft */
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if (!strncmp(ent->d_name, XEND_PCI_CONFIG_PREFIX, strlen(XEND_PCI_CONFIG_PREFIX)))
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continue;
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/* ...and the example domain configs */
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if (!strncmp(ent->d_name, XM_EXAMPLE_PREFIX, strlen(XM_EXAMPLE_PREFIX)))
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continue;
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/* ...and the QEMU networking script */
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if (!strncmp(ent->d_name, QEMU_IF_SCRIPT, strlen(QEMU_IF_SCRIPT)))
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continue;
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/* ...and editor backups */
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if (ent->d_name[0] == '#')
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continue;
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if (ent->d_name[strlen(ent->d_name)-1] == '~')
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continue;
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/* Build the full file path */
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if ((strlen(configDir) + 1 + strlen(ent->d_name) + 1) > PATH_MAX)
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continue;
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strcpy(path, configDir);
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strcat(path, "/");
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strcat(path, ent->d_name);
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/* Skip anything which isn't a file (takes care of scripts/ subdir */
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if ((stat(path, &st) < 0) ||
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(!S_ISREG(st.st_mode))) {
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continue;
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}
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/* If we already have a matching entry and it is not
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modified, then carry on to next one*/
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if ((entry = virHashLookup(configCache, path))) {
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const char *olddomname = NULL;
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if (entry->refreshedAt >= st.st_mtime) {
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entry->refreshedAt = now;
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continue;
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}
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/* If we currently own the name, then release it and
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re-acquire it later - just in case it was renamed */
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if (xenXMConfigGetString(entry->conf, "name", &olddomname) != -1) {
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char *nameowner = (char *)virHashLookup(nameConfigMap, olddomname);
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if (nameowner && !strcmp(nameowner, path)) {
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virHashRemoveEntry(nameConfigMap, olddomname, NULL);
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}
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}
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/* Clear existing config entry which needs refresh */
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virConfFree(entry->conf);
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entry->conf = NULL;
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} else { /* Completely new entry */
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newborn = 1;
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if (!(entry = malloc(sizeof(xenXMConfCache)))) {
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goto cleanup;
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}
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memcpy(entry->filename, path, PATH_MAX);
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}
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entry->refreshedAt = now;
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if (!(entry->conf = virConfReadFile(entry->filename)) ||
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xenXMConfigEnsureIdentity(entry->conf, ent->d_name) < 0) {
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if (!newborn) {
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virHashRemoveEntry(configCache, path, NULL);
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}
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free(entry);
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continue;
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}
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/* Lookup what domain name the conf contains */
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if (xenXMConfigGetString(entry->conf, "name", &domname) < 0) {
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if (!newborn) {
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virHashRemoveEntry(configCache, path, NULL);
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}
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free(entry);
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goto cleanup;
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}
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/* If its a completely new entry, it must be stuck into
|
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the cache (refresh'd entries are already registered) */
|
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if (newborn) {
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if (virHashAddEntry(configCache, entry->filename, entry) < 0) {
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virConfFree(entry->conf);
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free(entry);
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goto cleanup;
|
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}
|
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}
|
|
|
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/* See if we need to map this config file in as the primary owner
|
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* of the domain in question
|
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*/
|
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if (!virHashLookup(nameConfigMap, domname)) {
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if (virHashAddEntry(nameConfigMap, domname, entry->filename) < 0) {
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virHashRemoveEntry(configCache, ent->d_name, NULL);
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virConfFree(entry->conf);
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free(entry);
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}
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}
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}
|
|
|
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/* Reap all entries which were not changed, by comparing
|
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their refresh timestamp - the timestamp should match
|
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'now' if they were refreshed. If timestamp doesn't match
|
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then the config is no longer on disk */
|
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virHashRemoveSet(configCache, xenXMConfigReaper, xenXMConfigFree, (const void*) &now);
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ret = 0;
|
|
|
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cleanup:
|
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if (dh)
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closedir(dh);
|
|
|
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return (ret);
|
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}
|
|
|
|
|
|
/*
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|
* Open a 'connection' to the config file directory ;-)
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|
* We just create a hash table to store config files in.
|
|
* We only support a single directory, so repeated calls
|
|
* to open all end up using the same cache of files
|
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*/
|
|
int
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xenXMOpen (virConnectPtr conn ATTRIBUTE_UNUSED,
|
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const char *name ATTRIBUTE_UNUSED, int flags ATTRIBUTE_UNUSED)
|
|
{
|
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if (nconnections == 0) {
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configCache = virHashCreate(50);
|
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if (!configCache)
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return (-1);
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nameConfigMap = virHashCreate(50);
|
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if (!nameConfigMap) {
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virHashFree(configCache, NULL);
|
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configCache = NULL;
|
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return (-1);
|
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}
|
|
}
|
|
nconnections++;
|
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|
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return (0);
|
|
}
|
|
|
|
/*
|
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* Free the config files in the cache if this is the
|
|
* last connection
|
|
*/
|
|
int xenXMClose(virConnectPtr conn ATTRIBUTE_UNUSED) {
|
|
if (!nconnections--) {
|
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virHashFree(nameConfigMap, NULL);
|
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nameConfigMap = NULL;
|
|
virHashFree(configCache, xenXMConfigFree);
|
|
configCache = NULL;
|
|
}
|
|
return (0);
|
|
}
|
|
|
|
/*
|
|
* Our backend type
|
|
*/
|
|
const char *xenXMGetType(virConnectPtr conn ATTRIBUTE_UNUSED) {
|
|
return ("XenXM");
|
|
}
|
|
|
|
/*
|
|
* Since these are all offline domains, we only return info about
|
|
* VCPUs and memory.
|
|
*/
|
|
int xenXMDomainGetInfo(virDomainPtr domain, virDomainInfoPtr info) {
|
|
const char *filename;
|
|
xenXMConfCachePtr entry;
|
|
long vcpus;
|
|
long mem;
|
|
if ((domain == NULL) || (domain->conn == NULL) || (domain->name == NULL)) {
|
|
xenXMError((domain ? domain->conn : NULL), VIR_ERR_INVALID_ARG,
|
|
__FUNCTION__);
|
|
return(-1);
|
|
}
|
|
|
|
if (domain->id != -1)
|
|
return (-1);
|
|
|
|
if (!(filename = virHashLookup(nameConfigMap, domain->name)))
|
|
return (-1);
|
|
|
|
if (!(entry = virHashLookup(configCache, filename)))
|
|
return (-1);
|
|
|
|
memset(info, 0, sizeof(virDomainInfo));
|
|
if (xenXMConfigGetInt(entry->conf, "memory", &mem) < 0 ||
|
|
mem < 0)
|
|
info->memory = MIN_XEN_GUEST_SIZE * 1024 * 2;
|
|
else
|
|
info->memory = (unsigned long)mem * 1024;
|
|
if (xenXMConfigGetInt(entry->conf, "maxmem", &mem) < 0 ||
|
|
mem < 0)
|
|
info->maxMem = info->memory;
|
|
else
|
|
info->maxMem = (unsigned long)mem * 1024;
|
|
|
|
if (xenXMConfigGetInt(entry->conf, "vcpus", &vcpus) < 0 ||
|
|
vcpus < 0)
|
|
info->nrVirtCpu = 1;
|
|
else
|
|
info->nrVirtCpu = (unsigned short)vcpus;
|
|
info->state = VIR_DOMAIN_SHUTOFF;
|
|
info->cpuTime = 0;
|
|
|
|
return (0);
|
|
|
|
}
|
|
|
|
#define MAX_VFB 1024
|
|
/*
|
|
* Turn a config record into a lump of XML describing the
|
|
* domain, suitable for later feeding for virDomainCreateLinux
|
|
*/
|
|
char *xenXMDomainFormatXML(virConnectPtr conn, virConfPtr conf) {
|
|
virBufferPtr buf;
|
|
char *xml;
|
|
const char *name;
|
|
unsigned char uuid[VIR_UUID_BUFLEN];
|
|
const char *str;
|
|
int hvm = 0;
|
|
long val;
|
|
virConfValuePtr list;
|
|
int vnc = 0, sdl = 0;
|
|
char vfb[MAX_VFB];
|
|
long vncdisplay;
|
|
long vncunused = 1;
|
|
const char *vnclisten = NULL;
|
|
const char *vncpasswd = NULL;
|
|
const char *keymap = NULL;
|
|
xenUnifiedPrivatePtr priv = (xenUnifiedPrivatePtr) conn->privateData;
|
|
|
|
if (xenXMConfigGetString(conf, "name", &name) < 0)
|
|
return (NULL);
|
|
if (xenXMConfigGetUUID(conf, "uuid", uuid) < 0)
|
|
return (NULL);
|
|
|
|
buf = virBufferNew(4096);
|
|
|
|
virBufferAdd(buf, "<domain type='xen'>\n", -1);
|
|
virBufferVSprintf(buf, " <name>%s</name>\n", name);
|
|
virBufferVSprintf(buf,
|
|
" <uuid>%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x</uuid>\n",
|
|
uuid[0], uuid[1], uuid[2], uuid[3],
|
|
uuid[4], uuid[5], uuid[6], uuid[7],
|
|
uuid[8], uuid[9], uuid[10], uuid[11],
|
|
uuid[12], uuid[13], uuid[14], uuid[15]);
|
|
|
|
if ((xenXMConfigGetString(conf, "builder", &str) == 0) &&
|
|
!strcmp(str, "hvm"))
|
|
hvm = 1;
|
|
|
|
if (hvm) {
|
|
const char *boot;
|
|
virBufferAdd(buf, " <os>\n", -1);
|
|
virBufferAdd(buf, " <type>hvm</type>\n", -1);
|
|
if (xenXMConfigGetString(conf, "kernel", &str) == 0)
|
|
virBufferVSprintf(buf, " <loader>%s</loader>\n", str);
|
|
|
|
if (xenXMConfigGetString(conf, "boot", &boot) < 0)
|
|
boot = "c";
|
|
|
|
while (*boot) {
|
|
const char *dev;
|
|
switch (*boot) {
|
|
case 'a':
|
|
dev = "fd";
|
|
break;
|
|
case 'd':
|
|
dev = "cdrom";
|
|
break;
|
|
case 'c':
|
|
default:
|
|
dev = "hd";
|
|
break;
|
|
}
|
|
virBufferVSprintf(buf, " <boot>%s</boot>\n", dev);
|
|
boot++;
|
|
}
|
|
|
|
virBufferAdd(buf, " </os>\n", -1);
|
|
} else {
|
|
|
|
if (xenXMConfigGetString(conf, "bootloader", &str) == 0)
|
|
virBufferVSprintf(buf, " <bootloader>%s</bootloader>\n", str);
|
|
if (xenXMConfigGetString(conf, "kernel", &str) == 0) {
|
|
virBufferAdd(buf, " <os>\n", -1);
|
|
virBufferAdd(buf, " <type>linux</type>\n", -1);
|
|
virBufferVSprintf(buf, " <kernel>%s</kernel>\n", str);
|
|
if (xenXMConfigGetString(conf, "ramdisk", &str) == 0)
|
|
virBufferVSprintf(buf, " <initrd>%s</initrd>\n", str);
|
|
if (xenXMConfigGetString(conf, "extra", &str) == 0)
|
|
virBufferVSprintf(buf, " <cmdline>%s</cmdline>\n", str);
|
|
virBufferAdd(buf, " </os>\n", -1);
|
|
}
|
|
}
|
|
|
|
if (xenXMConfigGetInt(conf, "memory", &val) < 0)
|
|
val = MIN_XEN_GUEST_SIZE * 2;
|
|
virBufferVSprintf(buf, " <currentMemory>%ld</currentMemory>\n",
|
|
val * 1024);
|
|
|
|
if (xenXMConfigGetInt(conf, "maxmem", &val) < 0)
|
|
if (xenXMConfigGetInt(conf, "memory", &val) < 0)
|
|
val = MIN_XEN_GUEST_SIZE * 2;
|
|
virBufferVSprintf(buf, " <memory>%ld</memory>\n", val * 1024);
|
|
|
|
|
|
if (xenXMConfigGetInt(conf, "vcpus", &val) < 0)
|
|
val = 1;
|
|
virBufferVSprintf(buf, " <vcpu>%ld</vcpu>\n", val);
|
|
|
|
|
|
if (xenXMConfigGetString(conf, "on_poweroff", &str) < 0)
|
|
str = "destroy";
|
|
virBufferVSprintf(buf, " <on_poweroff>%s</on_poweroff>\n", str);
|
|
|
|
if (xenXMConfigGetString(conf, "on_reboot", &str) < 0)
|
|
str = "restart";
|
|
virBufferVSprintf(buf, " <on_reboot>%s</on_reboot>\n", str);
|
|
|
|
if (xenXMConfigGetString(conf, "on_crash", &str) < 0)
|
|
str = "restart";
|
|
virBufferVSprintf(buf, " <on_crash>%s</on_crash>\n", str);
|
|
|
|
|
|
if (hvm) {
|
|
virBufferAdd(buf, " <features>\n", -1);
|
|
if (xenXMConfigGetInt(conf, "pae", &val) == 0 &&
|
|
val)
|
|
virBufferAdd(buf, " <pae/>\n", -1);
|
|
if (xenXMConfigGetInt(conf, "acpi", &val) == 0 &&
|
|
val)
|
|
virBufferAdd(buf, " <acpi/>\n", -1);
|
|
if (xenXMConfigGetInt(conf, "apic", &val) == 0 &&
|
|
val)
|
|
virBufferAdd(buf, " <apic/>\n", -1);
|
|
virBufferAdd(buf, " </features>\n", -1);
|
|
}
|
|
|
|
virBufferAdd(buf, " <devices>\n", -1);
|
|
|
|
if (hvm) {
|
|
if (xenXMConfigGetString(conf, "device_model", &str) == 0)
|
|
virBufferVSprintf(buf, " <emulator>%s</emulator>\n", str);
|
|
}
|
|
|
|
list = virConfGetValue(conf, "disk");
|
|
if (list && list->type == VIR_CONF_LIST) {
|
|
list = list->list;
|
|
while (list) {
|
|
int block = 0;
|
|
int cdrom = 0;
|
|
char src[PATH_MAX];
|
|
char dev[NAME_MAX];
|
|
char drvName[NAME_MAX] = "";
|
|
char drvType[NAME_MAX] = "";
|
|
char *head;
|
|
char *offset;
|
|
char *tmp, *tmp1;
|
|
|
|
if ((list->type != VIR_CONF_STRING) || (list->str == NULL))
|
|
goto skipdisk;
|
|
head = list->str;
|
|
|
|
/*
|
|
* Disks have 3 components, SOURCE,DEST-DEVICE,MODE
|
|
* eg, phy:/dev/HostVG/XenGuest1,xvda,w
|
|
* The SOURCE is usually prefixed with a driver type,
|
|
* and optionally driver sub-type
|
|
* The DEST-DEVICE is optionally post-fixed with disk type
|
|
*/
|
|
|
|
/* Extract the source */
|
|
if (!(offset = index(head, ',')) || offset[0] == '\0')
|
|
goto skipdisk;
|
|
if ((offset - head) >= (PATH_MAX-1))
|
|
goto skipdisk;
|
|
strncpy(src, head, (offset - head));
|
|
src[(offset-head)] = '\0';
|
|
head = offset + 1;
|
|
|
|
/* Extract the dest */
|
|
if (!(offset = index(head, ',')) || offset[0] == '\0')
|
|
goto skipdisk;
|
|
if ((offset - head) >= (PATH_MAX-1))
|
|
goto skipdisk;
|
|
strncpy(dev, head, (offset - head));
|
|
dev[(offset-head)] = '\0';
|
|
head = offset + 1;
|
|
|
|
|
|
/* Extract source driver type */
|
|
if (!(tmp = index(src, ':')) || !tmp[0])
|
|
goto skipdisk;
|
|
strncpy(drvName, src, (tmp-src));
|
|
drvName[tmp-src] = '\0';
|
|
|
|
/* And the source driver sub-type */
|
|
if (!strncmp(drvName, "tap", 3)) {
|
|
if (!(tmp1 = index(tmp+1, ':')) || !tmp1[0])
|
|
goto skipdisk;
|
|
strncpy(drvType, tmp+1, (tmp1-(tmp+1)));
|
|
memmove(src, src+(tmp1-src)+1, strlen(src)-(tmp1-src));
|
|
} else {
|
|
drvType[0] = '\0';
|
|
memmove(src, src+(tmp-src)+1, strlen(src)-(tmp-src));
|
|
}
|
|
|
|
/* phy: type indicates a block device */
|
|
if (!strcmp(drvName, "phy")) {
|
|
block = 1;
|
|
}
|
|
|
|
/* Remove legacy ioemu: junk */
|
|
if (!strncmp(dev, "ioemu:", 6)) {
|
|
memmove(dev, dev+6, strlen(dev)-5);
|
|
}
|
|
|
|
/* Check for a :cdrom/:disk postfix */
|
|
if ((tmp = index(dev, ':')) != NULL) {
|
|
if (!strcmp(tmp, ":cdrom"))
|
|
cdrom = 1;
|
|
tmp[0] = '\0';
|
|
}
|
|
|
|
virBufferVSprintf(buf, " <disk type='%s' device='%s'>\n",
|
|
block ? "block" : "file",
|
|
cdrom ? "cdrom" : "disk");
|
|
if (drvType[0])
|
|
virBufferVSprintf(buf, " <driver name='%s' type='%s'/>\n", drvName, drvType);
|
|
else
|
|
virBufferVSprintf(buf, " <driver name='%s'/>\n", drvName);
|
|
virBufferVSprintf(buf, " <source %s='%s'/>\n", block ? "dev" : "file", src);
|
|
virBufferVSprintf(buf, " <target dev='%s'/>\n", dev);
|
|
if (!strcmp(head, "r") ||
|
|
!strcmp(head, "ro"))
|
|
virBufferAdd(buf, " <readonly/>\n", -1);
|
|
virBufferAdd(buf, " </disk>\n", -1);
|
|
|
|
skipdisk:
|
|
list = list->next;
|
|
}
|
|
}
|
|
|
|
if (hvm && priv->xendConfigVersion == 1) {
|
|
if (xenXMConfigGetString(conf, "cdrom", &str) == 0) {
|
|
virBufferAdd(buf, " <disk type='file' device='cdrom'>\n", -1);
|
|
virBufferAdd(buf, " <driver name='file'/>\n", -1);
|
|
virBufferVSprintf(buf, " <source file='%s'/>\n", str);
|
|
virBufferAdd(buf, " <target dev='hdc'/>\n", -1);
|
|
virBufferAdd(buf, " <readonly/>\n", -1);
|
|
virBufferAdd(buf, " </disk>\n", -1);
|
|
}
|
|
}
|
|
|
|
list = virConfGetValue(conf, "vif");
|
|
if (list && list->type == VIR_CONF_LIST) {
|
|
list = list->list;
|
|
while (list) {
|
|
int type = -1;
|
|
char script[PATH_MAX];
|
|
char ip[16];
|
|
char mac[18];
|
|
char *key;
|
|
|
|
mac[0] = '\0';
|
|
script[0] = '\0';
|
|
ip[0] = '\0';
|
|
|
|
if ((list->type != VIR_CONF_STRING) || (list->str == NULL))
|
|
goto skipnic;
|
|
|
|
key = list->str;
|
|
while (key) {
|
|
char *data;
|
|
char *nextkey = index(key, ',');
|
|
|
|
if (!(data = index(key, '=')) || (data[0] == '\0'))
|
|
goto skipnic;
|
|
data++;
|
|
|
|
if (!strncmp(key, "mac=", 4)) {
|
|
int len = nextkey ? (nextkey - data) : 17;
|
|
if (len > 17)
|
|
len = 17;
|
|
strncpy(mac, data, len);
|
|
mac[len] = '\0';
|
|
} else if (!strncmp(key, "bridge=", 7)) {
|
|
type = 1;
|
|
} else if (!strncmp(key, "script=", 7)) {
|
|
int len = nextkey ? (nextkey - data) : PATH_MAX-1;
|
|
if (len > (PATH_MAX-1))
|
|
len = PATH_MAX-1;
|
|
strncpy(script, data, len);
|
|
script[len] = '\0';
|
|
} else if (!strncmp(key, "ip=", 3)) {
|
|
int len = nextkey ? (nextkey - data) : 15;
|
|
if (len > 15)
|
|
len = 15;
|
|
strncpy(ip, data, len);
|
|
ip[len] = '\0';
|
|
}
|
|
|
|
while (nextkey && (nextkey[0] == ',' ||
|
|
nextkey[0] == ' ' ||
|
|
nextkey[0] == '\t'))
|
|
nextkey++;
|
|
key = nextkey;
|
|
}
|
|
|
|
/* XXX Forcing to pretend its a bridge */
|
|
if (type == -1) {
|
|
type = 1;
|
|
}
|
|
|
|
virBufferAdd(buf, " <interface type='bridge'>\n", -1);
|
|
if (mac[0])
|
|
virBufferVSprintf(buf, " <mac address='%s'/>\n", mac);
|
|
if (script[0])
|
|
virBufferVSprintf(buf, " <script path='%s'/>\n", script);
|
|
if (ip[0])
|
|
virBufferVSprintf(buf, " <ip address='%s'/>\n", ip);
|
|
virBufferAdd(buf, " </interface>\n", -1);
|
|
|
|
skipnic:
|
|
list = list->next;
|
|
}
|
|
}
|
|
|
|
/* HVM guests, or old PV guests use this config format */
|
|
if (hvm || priv->xendConfigVersion < 3) {
|
|
if (xenXMConfigGetInt(conf, "vnc", &val) == 0 && val) {
|
|
vnc = 1;
|
|
if (xenXMConfigGetInt(conf, "vncunused", &vncunused) < 0)
|
|
vncunused = 1;
|
|
if (xenXMConfigGetInt(conf, "vncdisplay", &vncdisplay) < 0)
|
|
vncdisplay = 0;
|
|
if (xenXMConfigGetString(conf, "vnclisten", &vnclisten) < 0)
|
|
vnclisten = NULL;
|
|
if (xenXMConfigGetString(conf, "vncpasswd", &vncpasswd) < 0)
|
|
vncpasswd = NULL;
|
|
if (xenXMConfigGetString(conf, "keymap", &keymap) < 0)
|
|
keymap = NULL;
|
|
}
|
|
if (xenXMConfigGetInt(conf, "sdl", &val) == 0 && val)
|
|
sdl = 1;
|
|
} else { /* New PV guests use this format */
|
|
list = virConfGetValue(conf, "vfb");
|
|
if (list && list->type == VIR_CONF_LIST &&
|
|
list->list && list->list->type == VIR_CONF_STRING &&
|
|
list->list->str) {
|
|
|
|
char *key = vfb;
|
|
strncpy(vfb, list->list->str, MAX_VFB-1);
|
|
vfb[MAX_VFB-1] = '\0';
|
|
|
|
while (key) {
|
|
char *data;
|
|
char *nextkey = index(key, ',');
|
|
char *end = nextkey;
|
|
if (nextkey) {
|
|
*end = '\0';
|
|
nextkey++;
|
|
}
|
|
|
|
if (!(data = index(key, '=')) || (data[0] == '\0'))
|
|
break;
|
|
data++;
|
|
|
|
if (!strncmp(key, "type=sdl", 8)) {
|
|
sdl = 1;
|
|
} else if (!strncmp(key, "type=vnc", 8)) {
|
|
vnc = 1;
|
|
} else if (!strncmp(key, "vnclisten=", 10)) {
|
|
vnclisten = key + 10;
|
|
} else if (!strncmp(key, "vncpasswd=", 10)) {
|
|
vncpasswd = key + 10;
|
|
} else if (!strncmp(key, "keymap=", 7)) {
|
|
keymap = key + 7;
|
|
} else if (!strncmp(key, "vncdisplay=", 11)) {
|
|
int port = strtol(key+11, NULL, 10);
|
|
if (port == -1)
|
|
vncunused = 1;
|
|
else
|
|
port = port - 5900;
|
|
}
|
|
|
|
while (nextkey && (nextkey[0] == ',' ||
|
|
nextkey[0] == ' ' ||
|
|
nextkey[0] == '\t'))
|
|
nextkey++;
|
|
key = nextkey;
|
|
}
|
|
}
|
|
}
|
|
|
|
if (vnc) {
|
|
virBufferVSprintf(buf,
|
|
" <graphics type='vnc' port='%ld'",
|
|
(vncunused ? -1 : 5900+vncdisplay));
|
|
if (vnclisten) {
|
|
virBufferVSprintf(buf, " listen='%s'", vnclisten);
|
|
}
|
|
if (vncpasswd) {
|
|
virBufferVSprintf(buf, " passwd='%s'", vncpasswd);
|
|
}
|
|
if (keymap) {
|
|
virBufferVSprintf(buf, " keymap='%s'", keymap);
|
|
}
|
|
virBufferAdd(buf, "/>\n", 3);
|
|
}
|
|
if (sdl) {
|
|
virBufferAdd(buf, " <graphics type='sdl'/>\n", -1);
|
|
}
|
|
|
|
if (hvm) {
|
|
if (xenXMConfigGetString(conf, "serial", &str) == 0 && !strcmp(str, "pty")) {
|
|
virBufferAdd(buf, " <console/>\n", -1);
|
|
}
|
|
} else { /* Paravirt implicitly always has a console */
|
|
virBufferAdd(buf, " <console/>\n", -1);
|
|
}
|
|
|
|
virBufferAdd(buf, " </devices>\n", -1);
|
|
|
|
virBufferAdd(buf, "</domain>\n", -1);
|
|
|
|
xml = buf->content;
|
|
buf->content = NULL;
|
|
virBufferFree(buf);
|
|
return (xml);
|
|
}
|
|
|
|
|
|
/*
|
|
* Turn a config record into a lump of XML describing the
|
|
* domain, suitable for later feeding for virDomainCreateLinux
|
|
*/
|
|
char *xenXMDomainDumpXML(virDomainPtr domain, int flags ATTRIBUTE_UNUSED) {
|
|
const char *filename;
|
|
xenXMConfCachePtr entry;
|
|
|
|
if ((domain == NULL) || (domain->conn == NULL) || (domain->name == NULL)) {
|
|
xenXMError((domain ? domain->conn : NULL), VIR_ERR_INVALID_ARG,
|
|
__FUNCTION__);
|
|
return(NULL);
|
|
}
|
|
if (domain->id != -1)
|
|
return (NULL);
|
|
|
|
if (!(filename = virHashLookup(nameConfigMap, domain->name)))
|
|
return (NULL);
|
|
|
|
if (!(entry = virHashLookup(configCache, filename)))
|
|
return (NULL);
|
|
|
|
return xenXMDomainFormatXML(domain->conn, entry->conf);
|
|
}
|
|
|
|
|
|
/*
|
|
* Update amount of memory in the config file
|
|
*/
|
|
int xenXMDomainSetMemory(virDomainPtr domain, unsigned long memory) {
|
|
const char *filename;
|
|
xenXMConfCachePtr entry;
|
|
virConfValuePtr value;
|
|
|
|
if ((domain == NULL) || (domain->conn == NULL) || (domain->name == NULL)) {
|
|
xenXMError((domain ? domain->conn : NULL), VIR_ERR_INVALID_ARG,
|
|
__FUNCTION__);
|
|
return (-1);
|
|
}
|
|
if (domain->conn->flags & VIR_CONNECT_RO)
|
|
return (-1);
|
|
if (domain->id != -1)
|
|
return (-1);
|
|
|
|
if (!(filename = virHashLookup(nameConfigMap, domain->name)))
|
|
return (-1);
|
|
|
|
if (!(entry = virHashLookup(configCache, filename)))
|
|
return (-1);
|
|
|
|
if (!(value = malloc(sizeof(virConfValue))))
|
|
return (-1);
|
|
|
|
value->type = VIR_CONF_LONG;
|
|
value->l = (memory/1024);
|
|
|
|
if (virConfSetValue(entry->conf, "memory", value) < 0)
|
|
return (-1);
|
|
|
|
/* If this fails, should we try to undo our changes to the
|
|
* in-memory representation of the config file. I say not!
|
|
*/
|
|
if (virConfWriteFile(entry->filename, entry->conf) < 0)
|
|
return (-1);
|
|
|
|
return (0);
|
|
}
|
|
|
|
/*
|
|
* Update maximum memory limit in config
|
|
*/
|
|
int xenXMDomainSetMaxMemory(virDomainPtr domain, unsigned long memory) {
|
|
const char *filename;
|
|
xenXMConfCachePtr entry;
|
|
virConfValuePtr value;
|
|
|
|
if ((domain == NULL) || (domain->conn == NULL) || (domain->name == NULL)) {
|
|
xenXMError((domain ? domain->conn : NULL), VIR_ERR_INVALID_ARG,
|
|
__FUNCTION__);
|
|
return (-1);
|
|
}
|
|
if (domain->conn->flags & VIR_CONNECT_RO)
|
|
return (-1);
|
|
if (domain->id != -1)
|
|
return (-1);
|
|
|
|
if (!(filename = virHashLookup(nameConfigMap, domain->name)))
|
|
return (-1);
|
|
|
|
if (!(entry = virHashLookup(configCache, filename)))
|
|
return (-1);
|
|
|
|
if (!(value = malloc(sizeof(virConfValue))))
|
|
return (-1);
|
|
|
|
value->type = VIR_CONF_LONG;
|
|
value->l = (memory/1024);
|
|
|
|
if (virConfSetValue(entry->conf, "maxmem", value) < 0)
|
|
return (-1);
|
|
|
|
/* If this fails, should we try to undo our changes to the
|
|
* in-memory representation of the config file. I say not!
|
|
*/
|
|
if (virConfWriteFile(entry->filename, entry->conf) < 0)
|
|
return (-1);
|
|
|
|
return (0);
|
|
}
|
|
|
|
/*
|
|
* Get max memory limit from config
|
|
*/
|
|
unsigned long xenXMDomainGetMaxMemory(virDomainPtr domain) {
|
|
const char *filename;
|
|
xenXMConfCachePtr entry;
|
|
long val;
|
|
|
|
if ((domain == NULL) || (domain->conn == NULL) || (domain->name == NULL)) {
|
|
xenXMError((domain ? domain->conn : NULL), VIR_ERR_INVALID_ARG,
|
|
__FUNCTION__);
|
|
return (-1);
|
|
}
|
|
if (domain->id != -1)
|
|
return (-1);
|
|
|
|
if (!(filename = virHashLookup(nameConfigMap, domain->name)))
|
|
return (-1);
|
|
|
|
if (!(entry = virHashLookup(configCache, filename)))
|
|
return (-1);
|
|
|
|
if (xenXMConfigGetInt(entry->conf, "maxmem", &val) < 0 ||
|
|
val < 0)
|
|
if (xenXMConfigGetInt(entry->conf, "memory", &val) < 0 ||
|
|
val < 0)
|
|
val = MIN_XEN_GUEST_SIZE * 2;
|
|
|
|
return (val * 1024);
|
|
}
|
|
|
|
/*
|
|
* Set the VCPU count in config
|
|
*/
|
|
int xenXMDomainSetVcpus(virDomainPtr domain, unsigned int vcpus) {
|
|
const char *filename;
|
|
xenXMConfCachePtr entry;
|
|
virConfValuePtr value;
|
|
|
|
if ((domain == NULL) || (domain->conn == NULL) || (domain->name == NULL)) {
|
|
xenXMError((domain ? domain->conn : NULL), VIR_ERR_INVALID_ARG,
|
|
__FUNCTION__);
|
|
return (-1);
|
|
}
|
|
if (domain->conn->flags & VIR_CONNECT_RO)
|
|
return (-1);
|
|
if (domain->id != -1)
|
|
return (-1);
|
|
|
|
if (!(filename = virHashLookup(nameConfigMap, domain->name)))
|
|
return (-1);
|
|
|
|
if (!(entry = virHashLookup(configCache, filename)))
|
|
return (-1);
|
|
|
|
if (!(value = malloc(sizeof(virConfValue))))
|
|
return (-1);
|
|
|
|
value->type = VIR_CONF_LONG;
|
|
value->l = vcpus;
|
|
|
|
if (virConfSetValue(entry->conf, "vcpus", value) < 0)
|
|
return (-1);
|
|
|
|
/* If this fails, should we try to undo our changes to the
|
|
* in-memory representation of the config file. I say not!
|
|
*/
|
|
if (virConfWriteFile(entry->filename, entry->conf) < 0)
|
|
return (-1);
|
|
|
|
return (0);
|
|
}
|
|
|
|
/*
|
|
* Find an inactive domain based on its name
|
|
*/
|
|
virDomainPtr xenXMDomainLookupByName(virConnectPtr conn, const char *domname) {
|
|
const char *filename;
|
|
xenXMConfCachePtr entry;
|
|
virDomainPtr ret;
|
|
unsigned char uuid[VIR_UUID_BUFLEN];
|
|
if (!VIR_IS_CONNECT(conn)) {
|
|
xenXMError(conn, VIR_ERR_INVALID_CONN, __FUNCTION__);
|
|
return (NULL);
|
|
}
|
|
if (domname == NULL) {
|
|
xenXMError(conn, VIR_ERR_INVALID_ARG, __FUNCTION__);
|
|
return (NULL);
|
|
}
|
|
|
|
if (xenXMConfigCacheRefresh() < 0)
|
|
return (NULL);
|
|
|
|
if (!(filename = virHashLookup(nameConfigMap, domname)))
|
|
return (NULL);
|
|
|
|
if (!(entry = virHashLookup(configCache, filename))) {
|
|
return (NULL);
|
|
}
|
|
|
|
|
|
if (xenXMConfigGetUUID(entry->conf, "uuid", uuid) < 0) {
|
|
return (NULL);
|
|
}
|
|
|
|
if (!(ret = virGetDomain(conn, domname, uuid))) {
|
|
return (NULL);
|
|
}
|
|
|
|
/* Ensure its marked inactive, because may be cached
|
|
handle to a previously active domain */
|
|
ret->id = -1;
|
|
|
|
return (ret);
|
|
}
|
|
|
|
|
|
/*
|
|
* Hash table iterator to search for a domain based on UUID
|
|
*/
|
|
static int xenXMDomainSearchForUUID(const void *payload, const char *name ATTRIBUTE_UNUSED, const void *data) {
|
|
unsigned char uuid[VIR_UUID_BUFLEN];
|
|
const unsigned char *wantuuid = (const unsigned char *)data;
|
|
const xenXMConfCachePtr entry = (const xenXMConfCachePtr)payload;
|
|
|
|
if (xenXMConfigGetUUID(entry->conf, "uuid", uuid) < 0) {
|
|
return (0);
|
|
}
|
|
|
|
if (!memcmp(uuid, wantuuid, VIR_UUID_BUFLEN))
|
|
return (1);
|
|
|
|
return (0);
|
|
}
|
|
|
|
/*
|
|
* Find an inactive domain based on its UUID
|
|
*/
|
|
virDomainPtr xenXMDomainLookupByUUID(virConnectPtr conn,
|
|
const unsigned char *uuid) {
|
|
xenXMConfCachePtr entry;
|
|
virDomainPtr ret;
|
|
const char *domname;
|
|
|
|
if (!VIR_IS_CONNECT(conn)) {
|
|
xenXMError(conn, VIR_ERR_INVALID_CONN, __FUNCTION__);
|
|
return (NULL);
|
|
}
|
|
if (uuid == NULL) {
|
|
xenXMError(conn, VIR_ERR_INVALID_ARG, __FUNCTION__);
|
|
return (NULL);
|
|
}
|
|
|
|
if (xenXMConfigCacheRefresh() < 0)
|
|
return (NULL);
|
|
|
|
if (!(entry = virHashSearch(configCache, xenXMDomainSearchForUUID, (const void *)uuid))) {
|
|
return (NULL);
|
|
}
|
|
|
|
if (xenXMConfigGetString(entry->conf, "name", &domname) < 0) {
|
|
return (NULL);
|
|
}
|
|
|
|
if (!(ret = virGetDomain(conn, domname, uuid))) {
|
|
return (NULL);
|
|
}
|
|
|
|
/* Ensure its marked inactive, because may be cached
|
|
handle to a previously active domain */
|
|
ret->id = -1;
|
|
|
|
return (ret);
|
|
}
|
|
|
|
|
|
/*
|
|
* Start a domain from an existing defined config file
|
|
*/
|
|
int xenXMDomainCreate(virDomainPtr domain) {
|
|
char *xml;
|
|
char *sexpr;
|
|
int ret;
|
|
unsigned char uuid[VIR_UUID_BUFLEN];
|
|
xenUnifiedPrivatePtr priv;
|
|
|
|
if ((domain == NULL) || (domain->conn == NULL) || (domain->name == NULL)) {
|
|
xenXMError((domain ? domain->conn : NULL), VIR_ERR_INVALID_ARG,
|
|
__FUNCTION__);
|
|
return (-1);
|
|
}
|
|
|
|
if (domain->id != -1)
|
|
return (-1);
|
|
if (domain->conn->flags & VIR_CONNECT_RO)
|
|
return (-1);
|
|
|
|
if (!(xml = xenXMDomainDumpXML(domain, 0)))
|
|
return (-1);
|
|
|
|
priv = (xenUnifiedPrivatePtr) domain->conn->privateData;
|
|
|
|
if (!(sexpr = virDomainParseXMLDesc(domain->conn, xml, NULL, priv->xendConfigVersion))) {
|
|
free(xml);
|
|
return (-1);
|
|
}
|
|
free(xml);
|
|
|
|
ret = xenDaemonDomainCreateLinux(domain->conn, sexpr);
|
|
free(sexpr);
|
|
if (ret != 0) {
|
|
return (-1);
|
|
}
|
|
|
|
if ((ret = xenDaemonDomainLookupByName_ids(domain->conn, domain->name, uuid)) < 0) {
|
|
return (-1);
|
|
}
|
|
domain->id = ret;
|
|
|
|
if ((ret = xend_wait_for_devices(domain->conn, domain->name)) < 0)
|
|
goto cleanup;
|
|
|
|
if ((ret = xenDaemonDomainResume(domain)) < 0)
|
|
goto cleanup;
|
|
|
|
return (0);
|
|
|
|
cleanup:
|
|
if (domain->id != -1) {
|
|
xenDaemonDomainDestroy(domain);
|
|
domain->id = -1;
|
|
}
|
|
return (-1);
|
|
}
|
|
|
|
|
|
static
|
|
int xenXMConfigSetInt(virConfPtr conf, const char *setting, long l) {
|
|
virConfValuePtr value = NULL;
|
|
|
|
if (!(value = malloc(sizeof(virConfValue))))
|
|
return -1;
|
|
|
|
value->type = VIR_CONF_LONG;
|
|
value->next = NULL;
|
|
value->l = l;
|
|
|
|
return virConfSetValue(conf, setting, value);
|
|
}
|
|
|
|
|
|
static
|
|
int xenXMConfigSetString(virConfPtr conf, const char *setting, const char *str) {
|
|
virConfValuePtr value = NULL;
|
|
|
|
if (!(value = malloc(sizeof(virConfValue))))
|
|
return -1;
|
|
|
|
value->type = VIR_CONF_STRING;
|
|
value->next = NULL;
|
|
if (!(value->str = strdup(str))) {
|
|
free(value);
|
|
return -1;
|
|
}
|
|
|
|
return virConfSetValue(conf, setting, value);
|
|
}
|
|
|
|
|
|
/*
|
|
* Convenience method to set an int config param
|
|
* based on an XPath expression
|
|
*/
|
|
static
|
|
int xenXMConfigSetIntFromXPath(virConnectPtr conn,
|
|
virConfPtr conf, xmlXPathContextPtr ctxt,
|
|
const char *setting, const char *xpath,
|
|
long scale, int allowMissing, const char *error) {
|
|
xmlXPathObjectPtr obj;
|
|
long intval;
|
|
char *strend;
|
|
int ret = -1;
|
|
|
|
obj = xmlXPathEval(BAD_CAST xpath, ctxt);
|
|
if ((obj == NULL) || (obj->type != XPATH_STRING) ||
|
|
(obj->stringval == NULL) || (obj->stringval[0] == 0)) {
|
|
if (allowMissing)
|
|
ret = 0;
|
|
else
|
|
xenXMError(conn, VIR_ERR_XML_ERROR, error);
|
|
goto error;
|
|
}
|
|
|
|
intval = strtol((char *)obj->stringval, &strend, 10);
|
|
if (strend == (char *)obj->stringval) {
|
|
xenXMError(conn, VIR_ERR_XML_ERROR, error);
|
|
goto error;
|
|
}
|
|
|
|
if (scale > 0)
|
|
intval = intval * scale;
|
|
else if (scale < 0)
|
|
intval = intval / (-1*scale);
|
|
|
|
if (xenXMConfigSetInt(conf, setting, intval) < 0)
|
|
goto error;
|
|
|
|
ret = 0;
|
|
|
|
error:
|
|
if (obj)
|
|
xmlXPathFreeObject(obj);
|
|
|
|
return ret;
|
|
}
|
|
|
|
/*
|
|
* Convenience method to set a string param
|
|
* based on an XPath expression
|
|
*/
|
|
static
|
|
int xenXMConfigSetStringFromXPath(virConnectPtr conn,
|
|
virConfPtr conf, xmlXPathContextPtr ctxt,
|
|
const char *setting, const char *xpath,
|
|
int allowMissing, const char *error) {
|
|
xmlXPathObjectPtr obj;
|
|
int ret = -1;
|
|
|
|
obj = xmlXPathEval(BAD_CAST xpath, ctxt);
|
|
|
|
if ((obj == NULL) || (obj->type != XPATH_STRING) ||
|
|
(obj->stringval == NULL) || (obj->stringval[0] == 0)) {
|
|
if (allowMissing)
|
|
ret = 0;
|
|
else
|
|
xenXMError(conn, VIR_ERR_XML_ERROR, error);
|
|
goto error;
|
|
}
|
|
|
|
if (xenXMConfigSetString(conf, setting, (const char *)obj->stringval) < 0)
|
|
goto error;
|
|
|
|
ret = 0;
|
|
|
|
error:
|
|
if (obj)
|
|
xmlXPathFreeObject(obj);
|
|
|
|
return ret;
|
|
}
|
|
|
|
static int xenXMParseXMLDisk(xmlNodePtr node, int hvm, int xendConfigVersion, char **disk) {
|
|
xmlNodePtr cur;
|
|
xmlChar *type = NULL;
|
|
xmlChar *device = NULL;
|
|
xmlChar *source = NULL;
|
|
xmlChar *target = NULL;
|
|
xmlChar *drvName = NULL;
|
|
xmlChar *drvType = NULL;
|
|
int readonly = 0;
|
|
int shareable = 0;
|
|
int typ = 0;
|
|
int cdrom = 0;
|
|
int ret = -1;
|
|
int buflen = 0;
|
|
char *buf = NULL;
|
|
|
|
type = xmlGetProp(node, BAD_CAST "type");
|
|
if (type != NULL) {
|
|
if (xmlStrEqual(type, BAD_CAST "file"))
|
|
typ = 0;
|
|
else if (xmlStrEqual(type, BAD_CAST "block"))
|
|
typ = 1;
|
|
xmlFree(type);
|
|
}
|
|
device = xmlGetProp(node, BAD_CAST "device");
|
|
|
|
cur = node->children;
|
|
while (cur != NULL) {
|
|
if (cur->type == XML_ELEMENT_NODE) {
|
|
if ((source == NULL) &&
|
|
(xmlStrEqual(cur->name, BAD_CAST "source"))) {
|
|
|
|
if (typ == 0)
|
|
source = xmlGetProp(cur, BAD_CAST "file");
|
|
else
|
|
source = xmlGetProp(cur, BAD_CAST "dev");
|
|
} else if ((target == NULL) &&
|
|
(xmlStrEqual(cur->name, BAD_CAST "target"))) {
|
|
target = xmlGetProp(cur, BAD_CAST "dev");
|
|
} else if ((drvName == NULL) &&
|
|
(xmlStrEqual(cur->name, BAD_CAST "driver"))) {
|
|
drvName = xmlGetProp(cur, BAD_CAST "name");
|
|
if (drvName && !strcmp((const char *)drvName, "tap"))
|
|
drvType = xmlGetProp(cur, BAD_CAST "type");
|
|
} else if (xmlStrEqual(cur->name, BAD_CAST "readonly")) {
|
|
readonly = 1;
|
|
} else if (xmlStrEqual(cur->name, BAD_CAST "shareable")) {
|
|
shareable = 1;
|
|
}
|
|
}
|
|
cur = cur->next;
|
|
}
|
|
|
|
if (source == NULL) {
|
|
if (target != NULL)
|
|
xmlFree(target);
|
|
if (device != NULL)
|
|
xmlFree(device);
|
|
return (-1);
|
|
}
|
|
if (target == NULL) {
|
|
if (source != NULL)
|
|
xmlFree(source);
|
|
if (device != NULL)
|
|
xmlFree(device);
|
|
return (-1);
|
|
}
|
|
|
|
/* Xend (all versions) put the floppy device config
|
|
* under the hvm (image (os)) block
|
|
*/
|
|
if (hvm &&
|
|
device &&
|
|
!strcmp((const char *)device, "floppy")) {
|
|
ret = 0;
|
|
goto cleanup;
|
|
}
|
|
|
|
/* Xend <= 3.0.2 doesn't include cdrom config here */
|
|
if (hvm &&
|
|
device &&
|
|
!strcmp((const char *)device, "cdrom")) {
|
|
if (xendConfigVersion == 1) {
|
|
ret = 0;
|
|
goto cleanup;
|
|
} else {
|
|
cdrom = 1;
|
|
}
|
|
}
|
|
|
|
if (drvName) {
|
|
buflen += strlen((const char*)drvName) + 1;
|
|
if (!strcmp((const char*)drvName, "tap")) {
|
|
if (drvType)
|
|
buflen += strlen((const char*)drvType) + 1;
|
|
else
|
|
buflen += 4;
|
|
}
|
|
} else {
|
|
if (typ == 0)
|
|
buflen += 5;
|
|
else
|
|
buflen += 4;
|
|
}
|
|
|
|
buflen += strlen((const char*)source) + 1;
|
|
buflen += strlen((const char*)target) + 1;
|
|
if (hvm && xendConfigVersion == 1) /* ioemu: */
|
|
buflen += 6;
|
|
|
|
if (cdrom) /* :cdrom */
|
|
buflen += 6;
|
|
|
|
buflen += 2; /* mode */
|
|
|
|
if (!(buf = malloc(buflen)))
|
|
goto cleanup;
|
|
|
|
if (drvName) {
|
|
strcpy(buf, (const char*)drvName);
|
|
if (!strcmp((const char*)drvName, "tap")) {
|
|
strcat(buf, ":");
|
|
if (drvType)
|
|
strcat(buf, (const char*)drvType);
|
|
else
|
|
strcat(buf, "aio");
|
|
}
|
|
} else {
|
|
if (typ == 0)
|
|
strcpy(buf, "file");
|
|
else
|
|
strcpy(buf, "phy");
|
|
}
|
|
strcat(buf, ":");
|
|
strcat(buf, (const char*)source);
|
|
strcat(buf, ",");
|
|
if (hvm && xendConfigVersion == 1)
|
|
strcat(buf, "ioemu:");
|
|
strcat(buf, (const char*)target);
|
|
if (cdrom)
|
|
strcat(buf, ":cdrom");
|
|
|
|
if (readonly)
|
|
strcat(buf, ",r");
|
|
else if (shareable)
|
|
strcat(buf, ",!");
|
|
else
|
|
strcat(buf, ",w");
|
|
ret = 0;
|
|
cleanup:
|
|
xmlFree(drvType);
|
|
xmlFree(drvName);
|
|
xmlFree(device);
|
|
xmlFree(target);
|
|
xmlFree(source);
|
|
*disk = buf;
|
|
|
|
return (ret);
|
|
}
|
|
static char *xenXMParseXMLVif(xmlNodePtr node, int hvm) {
|
|
xmlNodePtr cur;
|
|
xmlChar *type = NULL;
|
|
xmlChar *source = NULL;
|
|
xmlChar *mac = NULL;
|
|
xmlChar *script = NULL;
|
|
xmlChar *ip = NULL;
|
|
int typ = 0;
|
|
char *buf = NULL;
|
|
int buflen = 0;
|
|
|
|
type = xmlGetProp(node, BAD_CAST "type");
|
|
if (type != NULL) {
|
|
if (xmlStrEqual(type, BAD_CAST "bridge"))
|
|
typ = 0;
|
|
else if (xmlStrEqual(type, BAD_CAST "ethernet"))
|
|
typ = 1;
|
|
xmlFree(type);
|
|
}
|
|
cur = node->children;
|
|
while (cur != NULL) {
|
|
if (cur->type == XML_ELEMENT_NODE) {
|
|
if ((source == NULL) &&
|
|
(xmlStrEqual(cur->name, BAD_CAST "source"))) {
|
|
|
|
if (typ == 0)
|
|
source = xmlGetProp(cur, BAD_CAST "bridge");
|
|
else
|
|
source = xmlGetProp(cur, BAD_CAST "dev");
|
|
} else if ((mac == NULL) &&
|
|
(xmlStrEqual(cur->name, BAD_CAST "mac"))) {
|
|
mac = xmlGetProp(cur, BAD_CAST "address");
|
|
} else if ((ip == NULL) &&
|
|
(xmlStrEqual(cur->name, BAD_CAST "ip"))) {
|
|
ip = xmlGetProp(cur, BAD_CAST "address");
|
|
} else if ((script == NULL) &&
|
|
(xmlStrEqual(cur->name, BAD_CAST "script"))) {
|
|
script = xmlGetProp(cur, BAD_CAST "path");
|
|
}
|
|
}
|
|
cur = cur->next;
|
|
}
|
|
|
|
if (!mac) {
|
|
goto cleanup;
|
|
}
|
|
buflen += 5 + strlen((const char *)mac);
|
|
if (source) {
|
|
if (typ == 0) {
|
|
buflen += 8 + strlen((const char *)source);
|
|
} else {
|
|
buflen += 5 + strlen((const char *)source);
|
|
}
|
|
}
|
|
if (hvm)
|
|
buflen += 11;
|
|
if (script)
|
|
buflen += 8 + strlen((const char*)script);
|
|
if (ip)
|
|
buflen += 4 + strlen((const char*)ip);
|
|
|
|
if (!(buf = malloc(buflen)))
|
|
goto cleanup;
|
|
|
|
strcpy(buf, "mac=");
|
|
strcat(buf, (const char*)mac);
|
|
if (source) {
|
|
if (typ == 0) {
|
|
strcat(buf, ",bridge=");
|
|
strcat(buf, (const char*)source);
|
|
} else {
|
|
strcat(buf, ",mac=");
|
|
strcat(buf, (const char*)source);
|
|
}
|
|
}
|
|
if (hvm) {
|
|
strcat(buf, ",type=ioemu");
|
|
}
|
|
if (script) {
|
|
strcat(buf, ",script=");
|
|
strcat(buf, (const char*)script);
|
|
}
|
|
if (ip) {
|
|
strcat(buf, ",ip=");
|
|
strcat(buf, (const char*)ip);
|
|
}
|
|
|
|
cleanup:
|
|
if (mac != NULL)
|
|
xmlFree(mac);
|
|
if (source != NULL)
|
|
xmlFree(source);
|
|
if (script != NULL)
|
|
xmlFree(script);
|
|
if (ip != NULL)
|
|
xmlFree(ip);
|
|
|
|
return buf;
|
|
}
|
|
|
|
|
|
virConfPtr xenXMParseXMLToConfig(virConnectPtr conn, const char *xml) {
|
|
xmlDocPtr doc = NULL;
|
|
xmlNodePtr node;
|
|
xmlXPathObjectPtr obj = NULL;
|
|
xmlXPathContextPtr ctxt = NULL;
|
|
xmlChar *prop = NULL;
|
|
virConfPtr conf = NULL;
|
|
int hvm = 0, i;
|
|
xenUnifiedPrivatePtr priv;
|
|
|
|
doc = xmlReadDoc((const xmlChar *) xml, "domain.xml", NULL,
|
|
XML_PARSE_NOENT | XML_PARSE_NONET |
|
|
XML_PARSE_NOERROR | XML_PARSE_NOWARNING);
|
|
if (doc == NULL) {
|
|
xenXMError(conn, VIR_ERR_XML_ERROR, "cannot read XML domain definition");
|
|
return (NULL);
|
|
}
|
|
node = xmlDocGetRootElement(doc);
|
|
if ((node == NULL) || (!xmlStrEqual(node->name, BAD_CAST "domain"))) {
|
|
xenXMError(conn, VIR_ERR_XML_ERROR, "missing top level domain element");
|
|
goto error;
|
|
}
|
|
|
|
prop = xmlGetProp(node, BAD_CAST "type");
|
|
if (prop != NULL) {
|
|
if (!xmlStrEqual(prop, BAD_CAST "xen")) {
|
|
xenXMError(conn, VIR_ERR_XML_ERROR, "domain type is invalid");
|
|
goto error;
|
|
}
|
|
xmlFree(prop);
|
|
prop = NULL;
|
|
}
|
|
if (!(ctxt = xmlXPathNewContext(doc))) {
|
|
xenXMError(conn, VIR_ERR_INTERNAL_ERROR, "cannot create XPath context");
|
|
goto error;
|
|
}
|
|
if (!(conf = virConfNew()))
|
|
goto error;
|
|
|
|
|
|
if (xenXMConfigSetStringFromXPath(conn, conf, ctxt, "name", "string(/domain/name)", 0,
|
|
"domain name element missing") < 0)
|
|
goto error;
|
|
|
|
if (xenXMConfigSetStringFromXPath(conn, conf, ctxt, "uuid", "string(/domain/uuid)", 0,
|
|
"domain uuid element missing") < 0)
|
|
goto error;
|
|
|
|
if (xenXMConfigSetIntFromXPath(conn, conf, ctxt, "maxmem", "string(/domain/memory)", -1024, 0,
|
|
"domain memory element missing") < 0)
|
|
goto error;
|
|
|
|
if (xenXMConfigSetIntFromXPath(conn, conf, ctxt, "memory", "string(/domain/memory)", -1024, 0,
|
|
"domain memory element missing") < 0)
|
|
goto error;
|
|
|
|
if (xenXMConfigSetIntFromXPath(conn, conf, ctxt, "memory", "string(/domain/currentMemory)", -1024, 1,
|
|
"domain currentMemory element missing") < 0)
|
|
goto error;
|
|
|
|
if (xenXMConfigSetInt(conf, "vcpus", 1) < 0)
|
|
goto error;
|
|
|
|
if (xenXMConfigSetIntFromXPath(conn, conf, ctxt, "vcpus", "string(/domain/vcpu)", 0, 1,
|
|
"cannot set vcpus config parameter") < 0)
|
|
goto error;
|
|
|
|
obj = xmlXPathEval(BAD_CAST "string(/domain/os/type)", ctxt);
|
|
if ((obj != NULL) && (obj->type == XPATH_STRING) &&
|
|
(obj->stringval != NULL) && !strcmp((char*)obj->stringval, "hvm"))
|
|
hvm = 1;
|
|
xmlXPathFreeObject(obj);
|
|
|
|
priv = (xenUnifiedPrivatePtr) conn->privateData;
|
|
|
|
if (hvm) {
|
|
const char *boot = "c";
|
|
if (xenXMConfigSetString(conf, "builder", "hvm") < 0)
|
|
goto error;
|
|
|
|
if (xenXMConfigSetStringFromXPath(conn, conf, ctxt, "kernel", "string(/domain/os/loader)", 1,
|
|
"cannot set the os loader parameter") < 0)
|
|
goto error;
|
|
|
|
obj = xmlXPathEval(BAD_CAST "string(/domain/os/boot)", ctxt);
|
|
if ((obj != NULL) && (obj->type == XPATH_STRING) &&
|
|
(obj->stringval != NULL)) {
|
|
if (!strcmp((const char*)obj->stringval, "fd"))
|
|
boot = "a";
|
|
else if (!strcmp((const char*)obj->stringval, "hd"))
|
|
boot = "c";
|
|
else if (!strcmp((const char*)obj->stringval, "cdrom"))
|
|
boot = "d";
|
|
}
|
|
xmlXPathFreeObject(obj);
|
|
if (xenXMConfigSetString(conf, "boot", boot) < 0)
|
|
goto error;
|
|
|
|
if (xenXMConfigSetIntFromXPath(conn, conf, ctxt, "pae", "string(count(/domain/features/pae))", 0, 0,
|
|
"cannot set the pae parameter") < 0)
|
|
goto error;
|
|
|
|
if (xenXMConfigSetIntFromXPath(conn, conf, ctxt, "acpi", "string(count(/domain/features/acpi))", 0, 0,
|
|
"cannot set the acpi parameter") < 0)
|
|
goto error;
|
|
|
|
if (xenXMConfigSetIntFromXPath(conn, conf, ctxt, "apic", "string(count(/domain/features/apic))", 0, 0,
|
|
"cannot set the apic parameter") < 0)
|
|
goto error;
|
|
|
|
if (priv->xendConfigVersion == 1) {
|
|
if (xenXMConfigSetStringFromXPath(conn, conf, ctxt, "cdrom", "string(/domain/devices/disk[@device='cdrom']/source/@file)", 1,
|
|
"cannot set the cdrom parameter") < 0)
|
|
goto error;
|
|
}
|
|
} else {
|
|
if (xenXMConfigSetStringFromXPath(conn, conf, ctxt, "bootloader", "string(/domain/bootloader)", 1,
|
|
"cannot set the bootloader parameter") < 0)
|
|
goto error;
|
|
if (xenXMConfigSetStringFromXPath(conn, conf, ctxt, "kernel", "string(/domain/os/kernel)", 1,
|
|
"cannot set the kernel parameter") < 0)
|
|
goto error;
|
|
if (xenXMConfigSetStringFromXPath(conn, conf, ctxt, "ramdisk", "string(/domain/os/initrd)", 1,
|
|
"cannot set the ramdisk parameter") < 0)
|
|
goto error;
|
|
if (xenXMConfigSetStringFromXPath(conn, conf, ctxt, "extra", "string(/domain/os/cmdline)", 1,
|
|
"cannot set the cmdline parameter") < 0)
|
|
goto error;
|
|
|
|
}
|
|
|
|
if (xenXMConfigSetStringFromXPath(conn, conf, ctxt, "on_poweroff", "string(/domain/on_poweroff)", 1,
|
|
"cannot set the on_poweroff parameter") < 0)
|
|
goto error;
|
|
|
|
if (xenXMConfigSetStringFromXPath(conn, conf, ctxt, "on_reboot", "string(/domain/on_reboot)", 1,
|
|
"cannot set the on_reboot parameter") < 0)
|
|
goto error;
|
|
|
|
if (xenXMConfigSetStringFromXPath(conn, conf, ctxt, "on_crash", "string(/domain/on_crash)", 1,
|
|
"cannot set the on_crash parameter") < 0)
|
|
goto error;
|
|
|
|
|
|
if (hvm) {
|
|
if (xenXMConfigSetStringFromXPath(conn, conf, ctxt, "device_model", "string(/domain/devices/emulator)", 1,
|
|
"cannot set the device_model parameter") < 0)
|
|
goto error;
|
|
|
|
}
|
|
|
|
if (hvm || priv->xendConfigVersion < 3) {
|
|
if (xenXMConfigSetIntFromXPath(conn, conf, ctxt, "sdl", "string(count(/domain/devices/graphics[@type='sdl']))", 0, 0,
|
|
"cannot set the sdl parameter") < 0)
|
|
goto error;
|
|
if (xenXMConfigSetIntFromXPath(conn, conf, ctxt, "vnc", "string(count(/domain/devices/graphics[@type='vnc']))", 0, 0,
|
|
"cannot set the vnc parameter") < 0)
|
|
goto error;
|
|
if (xenXMConfigSetIntFromXPath(conn, conf, ctxt, "vncunused", "string(count(/domain/devices/graphics[@type='vnc' and @port='-1']))", 0, 0,
|
|
"cannot set the vncunused parameter") < 0)
|
|
goto error;
|
|
if (xenXMConfigSetStringFromXPath(conn, conf, ctxt, "vnclisten", "string(/domain/devices/graphics[@type='vnc']/@listen)", 1,
|
|
"cannot set the vnclisten parameter") < 0)
|
|
goto error;
|
|
if (xenXMConfigSetStringFromXPath(conn, conf, ctxt, "vncpasswd", "string(/domain/devices/graphics[@type='vnc']/@passwd)", 1,
|
|
"cannot set the vncpasswd parameter") < 0)
|
|
goto error;
|
|
if (xenXMConfigSetStringFromXPath(conn, conf, ctxt, "keymap", "string(/domain/devices/graphics[@type='vnc']/@keymap)", 1,
|
|
"cannot set the keymap parameter") < 0)
|
|
goto error;
|
|
|
|
/* XXX vncdisplay */
|
|
/*
|
|
if (xenXMConfigSetIntFromXPath(conn, conf, ctxt, "vncdisplay", "string(int(/domain/devices/graphics[@type='vnc']/@vncport) - 5900))", 0, 0) < 0)
|
|
goto error;
|
|
*/
|
|
} else {
|
|
virConfValuePtr vfb;
|
|
obj = xmlXPathEval(BAD_CAST "/domain/devices/graphics", ctxt);
|
|
if ((obj != NULL) && (obj->type == XPATH_NODESET) &&
|
|
(obj->nodesetval != NULL) && (obj->nodesetval->nodeNr >= 0)) {
|
|
if (!(vfb = malloc(sizeof(virConfValue)))) {
|
|
xenXMError(conn, VIR_ERR_NO_MEMORY, "config");
|
|
goto error;
|
|
}
|
|
vfb->type = VIR_CONF_LIST;
|
|
vfb->list = NULL;
|
|
for (i = obj->nodesetval->nodeNr -1 ; i >= 0 ; i--) {
|
|
xmlChar *type;
|
|
char *val = NULL;
|
|
|
|
if (!(type = xmlGetProp(obj->nodesetval->nodeTab[i], BAD_CAST "type"))) {
|
|
continue;
|
|
}
|
|
if (!strcmp((const char*)type, "sdl")) {
|
|
val = strdup("type=sdl");
|
|
} else if (!strcmp((const char*)type, "vnc")) {
|
|
int len = 8 + 1; /* type=vnc & NULL */
|
|
xmlChar *vncport = xmlGetProp(obj->nodesetval->nodeTab[i], BAD_CAST "port");
|
|
xmlChar *vnclisten = xmlGetProp(obj->nodesetval->nodeTab[i], BAD_CAST "listen");
|
|
xmlChar *vncpasswd = xmlGetProp(obj->nodesetval->nodeTab[i], BAD_CAST "passwd");
|
|
xmlChar *keymap = xmlGetProp(obj->nodesetval->nodeTab[i], BAD_CAST "keymap");
|
|
int vncunused = vncport ? (!strcmp((const char*)vncport, "-1") ? 1 : 0) : 1;
|
|
if (vncunused)
|
|
len += 12;
|
|
else
|
|
len += 12 + strlen((const char*)vncport);/* vncdisplay= */
|
|
if (vnclisten)
|
|
len += 11 + strlen((const char*)vnclisten);
|
|
if (vncpasswd)
|
|
len += 11 + strlen((const char*)vncpasswd);
|
|
if (keymap)
|
|
len += 8 + strlen((const char*)keymap);
|
|
if ((val = malloc(len)) != NULL) {
|
|
strcpy(val, "type=vnc");
|
|
if (vncunused) {
|
|
strcat(val, ",vncunused=1");
|
|
} else {
|
|
strcat(val, ",vncdisplay=");
|
|
strcat(val, (const char*)vncport);
|
|
}
|
|
if (vncport)
|
|
xmlFree(vncport);
|
|
if (vnclisten) {
|
|
strcat(val, ",vnclisten=");
|
|
strcat(val, (const char*)vnclisten);
|
|
xmlFree(vnclisten);
|
|
}
|
|
if (vncpasswd) {
|
|
strcat(val, ",vncpasswd=");
|
|
strcat(val, (const char*)vncpasswd);
|
|
xmlFree(vncpasswd);
|
|
}
|
|
if (keymap) {
|
|
strcat(val, ",keymap=");
|
|
strcat(val, (const char*)keymap);
|
|
xmlFree(keymap);
|
|
}
|
|
}
|
|
}
|
|
xmlFree(type);
|
|
if (val) {
|
|
virConfValuePtr disp;
|
|
if (!(disp = malloc(sizeof(virConfValue)))) {
|
|
free(val);
|
|
xenXMError(conn, VIR_ERR_NO_MEMORY, "config");
|
|
goto error;
|
|
}
|
|
disp->type = VIR_CONF_STRING;
|
|
disp->str = val;
|
|
disp->next = vfb->list;
|
|
vfb->list = disp;
|
|
}
|
|
}
|
|
if (virConfSetValue(conf, "vfb", vfb) < 0)
|
|
goto error;
|
|
}
|
|
xmlXPathFreeObject(obj);
|
|
}
|
|
|
|
/* analyze of the devices */
|
|
obj = xmlXPathEval(BAD_CAST "/domain/devices/disk", ctxt);
|
|
if ((obj != NULL) && (obj->type == XPATH_NODESET) &&
|
|
(obj->nodesetval != NULL) && (obj->nodesetval->nodeNr >= 0)) {
|
|
virConfValuePtr disks;
|
|
if (!(disks = malloc(sizeof(virConfValue)))) {
|
|
xenXMError(conn, VIR_ERR_NO_MEMORY, "config");
|
|
goto error;
|
|
}
|
|
disks->type = VIR_CONF_LIST;
|
|
disks->list = NULL;
|
|
for (i = obj->nodesetval->nodeNr -1 ; i >= 0 ; i--) {
|
|
virConfValuePtr thisDisk;
|
|
char *disk = NULL;
|
|
if (xenXMParseXMLDisk(obj->nodesetval->nodeTab[i], hvm, priv->xendConfigVersion, &disk) < 0)
|
|
goto error;
|
|
if (disk) {
|
|
if (!(thisDisk = malloc(sizeof(virConfValue)))) {
|
|
free(disk);
|
|
xenXMError(conn, VIR_ERR_NO_MEMORY, "config");
|
|
goto error;
|
|
}
|
|
thisDisk->type = VIR_CONF_STRING;
|
|
thisDisk->str = disk;
|
|
thisDisk->next = disks->list;
|
|
disks->list = thisDisk;
|
|
}
|
|
}
|
|
if (virConfSetValue(conf, "disk", disks) < 0)
|
|
goto error;
|
|
}
|
|
xmlXPathFreeObject(obj);
|
|
|
|
obj = xmlXPathEval(BAD_CAST "/domain/devices/interface", ctxt);
|
|
if ((obj != NULL) && (obj->type == XPATH_NODESET) &&
|
|
(obj->nodesetval != NULL) && (obj->nodesetval->nodeNr >= 0)) {
|
|
virConfValuePtr vifs;
|
|
if (!(vifs = malloc(sizeof(virConfValue)))) {
|
|
xenXMError(conn, VIR_ERR_NO_MEMORY, "config");
|
|
goto error;
|
|
}
|
|
vifs->type = VIR_CONF_LIST;
|
|
vifs->list = NULL;
|
|
for (i = 0; i < obj->nodesetval->nodeNr; i++) {
|
|
virConfValuePtr thisVif;
|
|
char *vif = xenXMParseXMLVif(obj->nodesetval->nodeTab[i], hvm);
|
|
if (!vif)
|
|
goto error;
|
|
if (!(thisVif = malloc(sizeof(virConfValue)))) {
|
|
if (vif)
|
|
free(vif);
|
|
xenXMError(conn, VIR_ERR_NO_MEMORY, "config");
|
|
goto error;
|
|
}
|
|
thisVif->type = VIR_CONF_STRING;
|
|
thisVif->str = vif;
|
|
thisVif->next = vifs->list;
|
|
vifs->list = thisVif;
|
|
}
|
|
if (virConfSetValue(conf, "vif", vifs) < 0)
|
|
goto error;
|
|
}
|
|
xmlXPathFreeObject(obj);
|
|
obj = NULL;
|
|
|
|
if (hvm) {
|
|
obj = xmlXPathEval(BAD_CAST "count(/domain/devices/console) > 0", ctxt);
|
|
if ((obj != NULL) && (obj->type == XPATH_BOOLEAN) &&
|
|
(obj->boolval)) {
|
|
if (xenXMConfigSetString(conf, "serial", "pty") < 0)
|
|
goto error;
|
|
}
|
|
xmlXPathFreeObject(obj);
|
|
obj = NULL;
|
|
}
|
|
|
|
xmlFreeDoc(doc);
|
|
xmlXPathFreeContext(ctxt);
|
|
|
|
return conf;
|
|
|
|
error:
|
|
if (conf)
|
|
virConfFree(conf);
|
|
if (prop != NULL)
|
|
xmlFree(prop);
|
|
if (obj != NULL)
|
|
xmlXPathFreeObject(obj);
|
|
if (ctxt != NULL)
|
|
xmlXPathFreeContext(ctxt);
|
|
if (doc != NULL)
|
|
xmlFreeDoc(doc);
|
|
return (NULL);
|
|
}
|
|
|
|
/*
|
|
* Create a config file for a domain, based on an XML
|
|
* document describing its config
|
|
*/
|
|
virDomainPtr xenXMDomainDefineXML(virConnectPtr conn, const char *xml) {
|
|
virDomainPtr ret;
|
|
char filename[PATH_MAX];
|
|
unsigned char uuid[VIR_UUID_BUFLEN];
|
|
virConfPtr conf = NULL;
|
|
xenXMConfCachePtr entry = NULL;
|
|
virConfValuePtr value;
|
|
|
|
if (!VIR_IS_CONNECT(conn)) {
|
|
xenXMError(conn, VIR_ERR_INVALID_CONN, __FUNCTION__);
|
|
return (NULL);
|
|
}
|
|
if (xml == NULL) {
|
|
xenXMError(conn, VIR_ERR_INVALID_ARG, __FUNCTION__);
|
|
return (NULL);
|
|
}
|
|
if (conn->flags & VIR_CONNECT_RO)
|
|
return (NULL);
|
|
|
|
if (xenXMConfigCacheRefresh() < 0)
|
|
return (NULL);
|
|
|
|
if (!(conf = xenXMParseXMLToConfig(conn, xml)))
|
|
goto error;
|
|
|
|
if (!(value = virConfGetValue(conf, "name")) ||
|
|
value->type != VIR_CONF_STRING ||
|
|
value->str == NULL) {
|
|
xenXMError(conn, VIR_ERR_INTERNAL_ERROR, "name config parameter is missing");
|
|
goto error;
|
|
}
|
|
|
|
if (virHashLookup(nameConfigMap, value->str)) {
|
|
xenXMError(conn, VIR_ERR_INTERNAL_ERROR, "domain with name already exists");
|
|
goto error;
|
|
}
|
|
|
|
if ((strlen(configDir) + 1 + strlen(value->str) + 1) > PATH_MAX) {
|
|
xenXMError(conn, VIR_ERR_INTERNAL_ERROR, "config file name is too long");
|
|
goto error;
|
|
}
|
|
|
|
strcpy(filename, configDir);
|
|
strcat(filename, "/");
|
|
strcat(filename, value->str);
|
|
|
|
if (virConfWriteFile(filename, conf) < 0) {
|
|
xenXMError(conn, VIR_ERR_INTERNAL_ERROR, "unable to write config file");
|
|
goto error;
|
|
}
|
|
|
|
if (!(entry = calloc(1, sizeof(xenXMConfCache)))) {
|
|
xenXMError(conn, VIR_ERR_NO_MEMORY, "config");
|
|
goto error;
|
|
}
|
|
|
|
if ((entry->refreshedAt = time(NULL)) == ((time_t)-1)) {
|
|
xenXMError(conn, VIR_ERR_INTERNAL_ERROR, "unable to get current time");
|
|
goto error;
|
|
}
|
|
|
|
memmove(entry->filename, filename, PATH_MAX);
|
|
entry->conf = conf;
|
|
|
|
if (xenXMConfigGetUUID(conf, "uuid", uuid) < 0) {
|
|
xenXMError(conn, VIR_ERR_INTERNAL_ERROR, "uuid config parameter is missing");
|
|
goto error;
|
|
}
|
|
|
|
if (virHashAddEntry(configCache, filename, entry) < 0) {
|
|
xenXMError(conn, VIR_ERR_INTERNAL_ERROR, "unable to store config file handle");
|
|
goto error;
|
|
}
|
|
|
|
if (virHashAddEntry(nameConfigMap, value->str, entry->filename) < 0) {
|
|
virHashRemoveEntry(configCache, filename, NULL);
|
|
xenXMError(conn, VIR_ERR_INTERNAL_ERROR, "unable to store config file handle");
|
|
goto error;
|
|
}
|
|
|
|
entry = NULL;
|
|
|
|
if (!(ret = virGetDomain(conn, value->str, uuid)))
|
|
goto error;
|
|
ret->id = -1;
|
|
|
|
return (ret);
|
|
|
|
error:
|
|
if (entry)
|
|
free(entry);
|
|
if (conf)
|
|
virConfFree(conf);
|
|
return (NULL);
|
|
}
|
|
|
|
/*
|
|
* Delete a domain from disk
|
|
*/
|
|
int xenXMDomainUndefine(virDomainPtr domain) {
|
|
const char *filename;
|
|
xenXMConfCachePtr entry;
|
|
if ((domain == NULL) || (domain->conn == NULL) || (domain->name == NULL)) {
|
|
xenXMError((domain ? domain->conn : NULL), VIR_ERR_INVALID_ARG,
|
|
__FUNCTION__);
|
|
return (-1);
|
|
}
|
|
|
|
if (domain->id != -1)
|
|
return (-1);
|
|
if (domain->conn->flags & VIR_CONNECT_RO)
|
|
return (-1);
|
|
|
|
if (!(filename = virHashLookup(nameConfigMap, domain->name)))
|
|
return (-1);
|
|
|
|
if (!(entry = virHashLookup(configCache, filename)))
|
|
return (-1);
|
|
|
|
if (unlink(entry->filename) < 0)
|
|
return (-1);
|
|
|
|
/* Remove the name -> filename mapping */
|
|
if (virHashRemoveEntry(nameConfigMap, domain->name, NULL) < 0)
|
|
return(-1);
|
|
|
|
/* Remove the config record itself */
|
|
if (virHashRemoveEntry(configCache, entry->filename, xenXMConfigFree) < 0)
|
|
return (-1);
|
|
|
|
return (0);
|
|
}
|
|
|
|
struct xenXMListIteratorContext {
|
|
virConnectPtr conn;
|
|
int max;
|
|
int count;
|
|
char ** names;
|
|
};
|
|
|
|
static void xenXMListIterator(const void *payload ATTRIBUTE_UNUSED, const char *name, const void *data) {
|
|
struct xenXMListIteratorContext *ctx = (struct xenXMListIteratorContext *)data;
|
|
virDomainPtr dom = NULL;
|
|
|
|
if (ctx->count == ctx->max)
|
|
return;
|
|
|
|
dom = xenDaemonDomainLookupByName(ctx->conn, name);
|
|
if (!dom) {
|
|
ctx->names[ctx->count] = strdup(name);
|
|
ctx->count++;
|
|
} else {
|
|
virDomainFree(dom);
|
|
}
|
|
}
|
|
|
|
|
|
/*
|
|
* List all defined domains, filtered to remove any which
|
|
* are currently running
|
|
*/
|
|
int xenXMListDefinedDomains(virConnectPtr conn, char **const names, int maxnames) {
|
|
struct xenXMListIteratorContext ctx;
|
|
|
|
if (!VIR_IS_CONNECT(conn)) {
|
|
xenXMError(conn, VIR_ERR_INVALID_CONN, __FUNCTION__);
|
|
return (-1);
|
|
}
|
|
|
|
if (xenXMConfigCacheRefresh() < 0)
|
|
return (-1);
|
|
|
|
if (maxnames > virHashSize(configCache))
|
|
maxnames = virHashSize(configCache);
|
|
|
|
ctx.conn = conn;
|
|
ctx.count = 0;
|
|
ctx.max = maxnames;
|
|
ctx.names = names;
|
|
|
|
virHashForEach(nameConfigMap, xenXMListIterator, &ctx);
|
|
return (ctx.count);
|
|
}
|
|
|
|
/*
|
|
* Return the maximum number of defined domains - not filtered
|
|
* based on number running
|
|
*/
|
|
int xenXMNumOfDefinedDomains(virConnectPtr conn) {
|
|
if (!VIR_IS_CONNECT(conn)) {
|
|
xenXMError(conn, VIR_ERR_INVALID_CONN, __FUNCTION__);
|
|
return (-1);
|
|
}
|
|
|
|
if (xenXMConfigCacheRefresh() < 0)
|
|
return (-1);
|
|
|
|
return virHashSize(nameConfigMap);
|
|
}
|
|
|
|
#endif /* WITH_XEN */
|
|
/*
|
|
* Local variables:
|
|
* indent-tabs-mode: nil
|
|
* c-indent-level: 4
|
|
* c-basic-offset: 4
|
|
* tab-width: 4
|
|
* End:
|
|
*/
|