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// -*- mode: C; c-basic-offset: 4; tab-width: 4; indent-tabs-mode: nil -*-
// vim: set softtabstop=4 shiftwidth=4 tabstop=4 expandtab:

/*************************************************************************
* Copyright 2009-2012 Eucalyptus Systems, Inc.
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; version 3 of the License.
*
* This program 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 General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see http://www.gnu.org/licenses/.
*
* Please contact Eucalyptus Systems, Inc., 6755 Hollister Ave., Goleta
* CA 93117, USA or visit http://www.eucalyptus.com/licenses/ if you need
* additional information or have any questions.
*
* This file may incorporate work covered under the following copyright
* and permission notice:
*
* Software License Agreement (BSD License)
*
* Copyright (c) 2008, Regents of the University of California
* All rights reserved.
*
* Redistribution and use of this software in source and binary forms,
* with or without modification, are permitted provided that the
* following conditions are met:
*
* Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
* Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer
* in the documentation and/or other materials provided with the
* distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE. USERS OF THIS SOFTWARE ACKNOWLEDGE
* THE POSSIBLE PRESENCE OF OTHER OPEN SOURCE LICENSED MATERIAL,
* COPYRIGHTED MATERIAL OR PATENTED MATERIAL IN THIS SOFTWARE,
* AND IF ANY SUCH MATERIAL IS DISCOVERED THE PARTY DISCOVERING
* IT MAY INFORM DR. RICH WOLSKI AT THE UNIVERSITY OF CALIFORNIA,
* SANTA BARBARA WHO WILL THEN ASCERTAIN THE MOST APPROPRIATE REMEDY,
* WHICH IN THE REGENTS' DISCRETION MAY INCLUDE, WITHOUT LIMITATION,
* REPLACEMENT OF THE CODE SO IDENTIFIED, LICENSING OF THE CODE SO
* IDENTIFIED, OR WITHDRAWAL OF THE CODE CAPABILITY TO THE EXTENT
* NEEDED TO COMPLY WITH ANY SUCH LICENSES OR RIGHTS.
************************************************************************/

#ifndef INCLUDE_HANDLERS_H
#define INCLUDE_HANDLERS_H

#include <libvirt/libvirt.h>
#include <libvirt/virterror.h>

#include "vnetwork.h"
#include "data.h"
#include "config.h"
#include "sensor.h"

#include <windows-bundle.h>

#define LIBVIRT_QUERY_RETRIES 5
#define MAXDOMS 1024
#define BYTES_PER_DISK_UNIT 1073741824 // describeResource disk units are GBs
#define MB_PER_DISK_UNIT 1024 // describeResource disk units are GBs

/* NC state */
struct nc_state_t {
struct handlers *H; // selected handler
struct handlers *D; // default handler
        hypervisorCapabilityType capability;
vnetConfig *vnetconfig; // network config
// globals
char admin_user_id[CHAR_BUFFER_SIZE];
int save_instance_files;
char uri[CHAR_BUFFER_SIZE];
        char iqn[CHAR_BUFFER_SIZE];
virConnectPtr conn;
boolean convert_to_disk;
        boolean do_inject_key;
        int concurrent_disk_ops, concurrent_cleanup_ops;
    int disable_snapshots;
int staging_cleanup_threshold;
int booting_cleanup_threshold;
int bundling_cleanup_threshold;
int createImage_cleanup_threshold;
int teardown_state_duration;
// defined max
long long config_max_mem;
long long config_max_cores;
// current max
long long disk_max;
long long mem_max;
long long cores_max;
// paths
char home[MAX_PATH];
    char configFiles[2][MAX_PATH];
    char config_network_path [MAX_PATH];
    char libvirt_xslt_path[MAX_PATH];
char get_info_cmd_path[MAX_PATH];
char rootwrap_cmd_path[MAX_PATH];
char virsh_cmd_path[MAX_PATH];
char xm_cmd_path[MAX_PATH];
char detach_cmd_path[MAX_PATH];
// virtio
int config_use_virtio_net; // KVM: use virtio for network
int config_use_virtio_disk; // KVM: use virtio for disk attachment
int config_use_virtio_root; // KVM: use virtio for root partition
    // windows support
char ncBundleUploadCmd[MAX_PATH];
   char ncCheckBucketCmd[MAX_PATH];
   char ncDeleteBundleCmd[MAX_PATH];
};

static configEntry configKeysRestartNC[] = {
    {"ENABLE_WS_SECURITY", "Y"},
    {"EUCALYPTUS", "/"},
    {"NC_PORT", "8775"},
    {"NC_SERVICE", "axis2/services/EucalyptusNC"},
    {NULL, NULL}
};

static configEntry configKeysNoRestartNC[] = {
    {"LOGLEVEL", "DEBUG"},
    {"LOGROLLNUMBER", "4"},
    {"LOGMAXSIZE", "10485760"},
    {"LOGPREFIX", ""},
    {NULL, NULL}
};

struct handlers {
    char name [CHAR_BUFFER_SIZE];
    int (*doInitialize) (struct nc_state_t *nc);
    int (*doAssignAddress) (struct nc_state_t *nc,
ncMetadata *meta,
char *instanceId,
char *publicIp);
    int (*doPowerDown) (struct nc_state_t *nc,
ncMetadata *meta);
    int (*doDescribeInstances) (struct nc_state_t *nc,
ncMetadata *meta,
char **instIds,
int instIdsLen,
ncInstance ***outInsts,
int *outInstsLen);
    int (*doRunInstance) (struct nc_state_t *nc,
ncMetadata *meta,
char *uuid,
char *instanceId,
char *reservationId,
virtualMachine *params,
char *imageId,
char *imageURL,
char *kernelId,
char *kernelURL,
char *ramdiskId,
char *ramdiskURL,
char *ownerId,
char *accountId,
char *keyName,
netConfig *netparams,
char *userData,
char *launchIndex,
char *platform,
int expiryTime,
char **groupNames,
int groupNamesSize,
ncInstance **outInst);
    int (*doTerminateInstance) (struct nc_state_t *nc,
ncMetadata *meta,
char *instanceId,
int force,
int *shutdownState,
int *previousState);
    int (*doRebootInstance) (struct nc_state_t *nc,
ncMetadata *meta,
char *instanceId);
    int (*doGetConsoleOutput) (struct nc_state_t *nc,
ncMetadata *meta,
char *instanceId,
char **consoleOutput);
    int (*doDescribeResource) (struct nc_state_t *nc,
ncMetadata *meta,
char *resourceType,
ncResource **outRes);
    int (*doStartNetwork) (struct nc_state_t *nc,
ncMetadata *ccMeta,
char *uuid,
char **remoteHosts,
int remoteHostsLen,
int port,
int vlan);
    int (*doAttachVolume) (struct nc_state_t *nc,
ncMetadata *meta,
char *instanceId,
char *volumeId,
char *remoteDev,
char *localDev);
    int (*doDetachVolume) (struct nc_state_t *nc,
ncMetadata *meta,
char *instanceId,
char *volumeId,
char *remoteDev,
char *localDev,
int force,
                                int grab_inst_sem);
    int (*doCreateImage) (struct nc_state_t *nc,
ncMetadata *meta,
char *instanceId,
char *volumeId,
char *remoteDev);
    int (*doBundleInstance) (struct nc_state_t *nc,
ncMetadata *meta,
char *instanceId,
char *bucketName,
char *filePrefix,
char *walrusURL,
char *userPublicKey,
char *S3Policy,
char *S3PolicySig);
int (*doBundleRestartInstance)(struct nc_state_t *nc,
ncMetadata *meta,
char *instanceId);
    int (*doCancelBundleTask) (struct nc_state_t *nc,
ncMetadata *meta,
char *instanceId);
    int (*doDescribeBundleTasks) (struct nc_state_t *nc,
ncMetadata *meta,
char **instIds,
int instIdsLen,
bundleTask ***outBundleTasks,
int *outBundleTasksLen);
  int (*doDescribeSensors) (struct nc_state_t *nc,
ncMetadata *meta,
                            int historySize,
                            long long collectionIntervalTimeMs,
char **instIds,
int instIdsLen,
char **sensorIds,
int sensorIdsLen,
sensorResource ***outResources,
int *outResourcesLen);
};

#ifdef HANDLERS_FANOUT // only declare for the fanout code, not the actual handlers
int doAssignAddress (ncMetadata *meta, char *instanceId, char *publicIp);
int doPowerDown (ncMetadata *meta);
int doDescribeInstances (ncMetadata *meta, char **instIds, int instIdsLen, ncInstance ***outInsts, int *outInstsLen);
int doRunInstance (ncMetadata *meta, char *uuid, char *instanceId, char *reservationId, virtualMachine *params, char *imageId, char *imageURL, char *kernelId, char *kernelURL, char *ramdiskId, char *ramdiskURL, char *ownerId, char *accountId, char *keyName, netConfig *netparams, char *userData, char *launchIndex, char *platform, int expiryTime, char **groupNames, int groupNamesSize, ncInstance **outInst);
int doTerminateInstance (ncMetadata *meta, char *instanceId, int force, int *shutdownState, int *previousState);
int doRebootInstance (ncMetadata *meta, char *instanceId);
int doGetConsoleOutput (ncMetadata *meta, char *instanceId, char **consoleOutput);
int doDescribeResource (ncMetadata *meta, char *resourceType, ncResource **outRes);
int doStartNetwork (ncMetadata *ccMeta, char *uuid, char **remoteHosts, int remoteHostsLen, int port, int vlan);
int doAttachVolume (ncMetadata *meta, char *instanceId, char *volumeId, char *remoteDev, char *localDev);
int doDetachVolume (ncMetadata *meta, char *instanceId, char *volumeId, char *remoteDev, char *localDev, int force, int grab_inst_sem);
int doBundleInstance (ncMetadata *meta, char *instanceId, char *bucketName, char *filePrefix, char *walrusURL, char *userPublicKey, char *S3Policy, char *S3PolicySig);
int doBundleRestartInstance (ncMetadata *meta, char *instanceId);
int doCancelBundleTask (ncMetadata *meta, char *instanceId);
int doDescribeBundleTasks (ncMetadata *meta, char **instIds, int instIdsLen, bundleTask ***outBundleTasks, int *outBundleTasksLen);
int doCreateImage (ncMetadata *meta, char *instanceId, char *volumeId, char *remoteDev);
int doDescribeSensors (ncMetadata *meta, int historySize, long long collectionIntervalTimeMs, char **instIds, int instIdsLen, char **sensorIds, int sensorIdsLen, sensorResource ***outResources, int *outResourcesLen);
#endif /* HANDLERS_FANOUT */

int callBundleInstanceHelper(struct nc_state_t *nc, char *instanceId, char *bucketName, char *filePrefix, char *walrusURL, char *userPublicKey, char *S3Policy, char *S3PolicySig);

/* helper functions used by the low level handlers */
int get_value( char *s,
const char *name,
long long *valp);
int convert_dev_names( const char *localDev,
char *localDevReal,
char *localDevTag);
void print_running_domains( void);
virConnectPtr *check_hypervisor_conn();
void change_state( ncInstance * instance,
instance_states state);
int
wait_state_transition ( ncInstance * instance,
instance_states from_state,
instance_states to_state);
void adopt_instances();
int get_instance_xml( const char *gen_libvirt_cmd_path,
char *userId,
char *instanceId,
char *platform,
char *ramdiskId,
char *kernelId,
char *disk_path,
virtualMachine *params,
char *privMac,
char *brname,
int use_virtio_net,
int use_virtio_root,
char **xml);
void * monitoring_thread( void *arg);
void * startup_thread( void *arg);
void * restart_thread( void *arg);

int get_instance_stats(virDomainPtr dom, ncInstance *instance);
ncInstance * find_global_instance (const char * instanceId);
int find_and_terminate_instance (struct nc_state_t *nc_state, ncMetadata *meta, char *instanceId, int force, ncInstance **instance_p, char destroy);
void copy_instances (void);

// bundling structure
struct bundling_params_t {
ncInstance * instance;
char * bucketName;
char * filePrefix;
char * walrusURL;
char * userPublicKey;
   char * S3Policy;
   char * S3PolicySig;
char * workPath; // work directory path
char * diskPath; // disk file path
char * eucalyptusHomePath;
long long sizeMb; // diskPath size
char * ncBundleUploadCmd;
   char * ncCheckBucketCmd;
   char * ncDeleteBundleCmd;
};

// bundling structure
struct createImage_params_t {
ncInstance * instance;
        char *volumeId;
        char *remoteDev;
char * workPath; // work directory path
char * diskPath; // disk file path
char * eucalyptusHomePath;
long long sizeMb; // diskPath size
};

#endif /* INCLUDE */
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