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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.
************************************************************************/
#include <stdio.h>
#include <stdlib.h>
#define __USE_GNU
#include <string.h>
#include <assert.h>
#include "data.h"
int allocate_virtualMachine(virtualMachine *out, const virtualMachine *in)
{
if (out != NULL) {
out->mem = in->mem;
out->disk = in->disk;
out->cores = in->cores;
snprintf(out->name, 64, "%s", in->name);
int i;
for (i=0; i<EUCA_MAX_VBRS && i<in->virtualBootRecordLen; i++) { // TODO: dan ask dmitrii
virtualBootRecord * out_r = out->virtualBootRecord + i;
const virtualBootRecord * in_r = in->virtualBootRecord + i;
strncpy (out_r->resourceLocation, in_r->resourceLocation, sizeof (out_r->resourceLocation));
strncpy (out_r->guestDeviceName, in_r->guestDeviceName, sizeof (out_r->guestDeviceName));
strncpy (out_r->id, in_r->id, sizeof (out_r->id));
strncpy (out_r->typeName, in_r->typeName, sizeof (out_r->typeName));
out_r->size = in_r->size;
strncpy (out_r->formatName, in_r->formatName, sizeof (out_r->formatName));
}
}
return(0);
}
int allocate_netConfig(netConfig *out, char *pvMac, char *pvIp, char *pbIp, int vlan, int networkIndex) {
if (out != NULL) {
if (pvMac) safe_strncpy(out->privateMac,pvMac,24);
if (pvIp) safe_strncpy(out->privateIp,pvIp,24);
if (pbIp) safe_strncpy(out->publicIp,pbIp,24);
out->networkIndex = networkIndex;
out->vlan = vlan;
}
return(0);
}
/* metadata is present in every type of nc request */
ncMetadata * allocate_metadata (char *correlationId, char *userId)
{
ncMetadata * meta;
if (!(meta = malloc(sizeof(ncMetadata)))) return NULL;
if (correlationId) meta->correlationId = strdup(correlationId);
if (userId) meta->userId = strdup(userId);
return meta;
}
void free_metadata (ncMetadata ** metap)
{
ncMetadata * meta = * metap;
if (meta->correlationId) free(meta->correlationId);
if (meta->userId) free(meta->userId);
* metap = NULL;
}
/* instances are present in instance-related requests */
ncInstance * allocate_instance (char *uuid,
char *instanceId, char *reservationId,
virtualMachine *params,
char *stateName, int stateCode, char *userId, char *ownerId, char *accountId,
netConfig *ncnet, char *keyName,
char *userData, char *launchIndex, char *platform, int expiryTime, char **groupNames, int groupNamesSize)
{
ncInstance * inst;
/* zeroed out for cleaner-looking checkpoints and
* strings that are empty unless set */
inst = calloc(1, sizeof(ncInstance));
if (!inst) return(NULL);
if (userData) {
safe_strncpy(inst->userData, userData, CHAR_BUFFER_SIZE*32);
}
if (launchIndex) {
safe_strncpy(inst->launchIndex, launchIndex, CHAR_BUFFER_SIZE);
}
if (platform) {
safe_strncpy(inst->platform, platform, CHAR_BUFFER_SIZE);
}
inst->groupNamesSize = groupNamesSize;
if (groupNames && groupNamesSize) {
int i;
for (i=0; i<groupNamesSize && groupNames[i]; i++) {
safe_strncpy(inst->groupNames[i], groupNames[i], CHAR_BUFFER_SIZE);
}
}
if (ncnet != NULL) {
memcpy(&(inst->ncnet), ncnet, sizeof(netConfig));
}
if (uuid) {
safe_strncpy(inst->uuid, uuid, CHAR_BUFFER_SIZE);
}
if (instanceId) {
safe_strncpy(inst->instanceId, instanceId, CHAR_BUFFER_SIZE);
}
if (keyName) {
safe_strncpy(inst->keyName, keyName, CHAR_BUFFER_SIZE*4);
}
if (reservationId) {
safe_strncpy(inst->reservationId, reservationId, CHAR_BUFFER_SIZE);
}
if (stateName) {
safe_strncpy(inst->stateName, stateName, CHAR_BUFFER_SIZE);
}
if (userId) {
safe_strncpy(inst->userId, userId, CHAR_BUFFER_SIZE);
}
if (ownerId) {
safe_strncpy(inst->ownerId, ownerId, CHAR_BUFFER_SIZE);
}
if (accountId) {
safe_strncpy(inst->accountId, accountId, CHAR_BUFFER_SIZE);
}
if (params) {
memcpy(&(inst->params), params, sizeof(virtualMachine));
}
inst->stateCode = stateCode;
safe_strncpy (inst->bundleTaskStateName, bundling_progress_names [NOT_BUNDLING], CHAR_BUFFER_SIZE);
inst->expiryTime = expiryTime;
return inst;
}
void free_instance (ncInstance ** instp)
{
ncInstance * inst;
if (!instp) return;
inst = * instp;
* instp = NULL;
if (!inst) return;
free (inst);
}
/* resource is used to return information about resources */
ncResource * allocate_resource (char *nodeStatus,
char *iqn,
int memorySizeMax, int memorySizeAvailable,
int diskSizeMax, int diskSizeAvailable,
int numberOfCoresMax, int numberOfCoresAvailable,
char *publicSubnets)
{
ncResource * res;
if (!nodeStatus) return NULL;
if (!(res = malloc(sizeof(ncResource)))) return NULL;
bzero(res, sizeof(ncResource));
safe_strncpy(res->nodeStatus, nodeStatus, CHAR_BUFFER_SIZE);
if (iqn) {
safe_strncpy(res->iqn, iqn, CHAR_BUFFER_SIZE);
}
if (publicSubnets) {
safe_strncpy(res->publicSubnets, publicSubnets, CHAR_BUFFER_SIZE);
}
res->memorySizeMax = memorySizeMax;
res->memorySizeAvailable = memorySizeAvailable;
res->diskSizeMax = diskSizeMax;
res->diskSizeAvailable = diskSizeAvailable;
res->numberOfCoresMax = numberOfCoresMax;
res->numberOfCoresAvailable = numberOfCoresAvailable;
return res;
}
void free_resource (ncResource ** resp)
{
ncResource * res;
if (!resp) return;
res = * resp;
* resp = NULL;
if (!res) return;
free (res);
}
instance_error_codes add_instance (bunchOfInstances ** headp, ncInstance * instance)
{
bunchOfInstances * new = malloc (sizeof(bunchOfInstances));
if ( new == NULL ) return OUT_OF_MEMORY;
new->instance = instance;
new->next = NULL;
if ( * headp == NULL) {
* headp = new;
(* headp)->count = 1;
} else {
bunchOfInstances * last = * headp;
do {
if ( !strcmp(last->instance->instanceId, instance->instanceId) ) {
free (new);
return DUPLICATE;
}
} while ( last->next && (last = last->next) );
last->next = new;
(* headp)->count++;
}
return OK;
}
instance_error_codes remove_instance (bunchOfInstances ** headp, ncInstance * instance)
{
bunchOfInstances * head, * prev = NULL;
for ( head = * headp; head; ) {
int count = (* headp)->count;
if ( !strcmp(head->instance->instanceId, instance->instanceId) ) {
if ( prev ) {
prev->next = head->next;
} else {
* headp = head->next;
}
if (* headp) {
(* headp)->count = count - 1;
}
free (head);
return OK;
}
prev = head;
head = head->next;
}
return NOT_FOUND;
}
instance_error_codes for_each_instance (bunchOfInstances ** headp, void (* function)(bunchOfInstances **, ncInstance *, void *), void *param)
{
bunchOfInstances * head;
for ( head = * headp; head; head = head->next ) {
function ( headp, head->instance, param );
}
return OK;
}
ncInstance * find_instance (bunchOfInstances **headp, char * instanceId)
{
bunchOfInstances * head;
for ( head = * headp; head; head = head->next ) {
if (!strcmp(head->instance->instanceId, instanceId)) {
return head->instance;
}
}
return NULL;
}
ncInstance * get_instance (bunchOfInstances **headp)
{
static bunchOfInstances * current = NULL;
/* advance static variable, wrapping to head if at the end */
if ( current == NULL ) current = * headp;
else current = current->next;
/* return the new value, if any */
if ( current == NULL ) return NULL;
else return current->instance;
}
int total_instances (bunchOfInstances **headp)
{
if ( * headp ) return (* headp)->count;
else return 0;
}
/*
* finds a matching volume
* OR returns a pointer to the next empty/avail volume slot
* OR if full, returns NULL
*/
static ncVolume * find_volume (ncInstance * instance, const char *volumeId)
{
ncVolume * v = instance->volumes;
ncVolume * match = NULL;
ncVolume * avail = NULL;
ncVolume * empty = NULL;
for (int i=0; i<EUCA_MAX_VOLUMES; i++,v++) {
// look for matches
if (! strncmp (v->volumeId, volumeId, CHAR_BUFFER_SIZE)) {
assert (match==NULL);
match = v;
}
// look for the first empty and available slot
if (! strnlen (v->volumeId, CHAR_BUFFER_SIZE)) {
if (empty==NULL)
empty = v;
} else if (! is_volume_used (v)) {
if (avail==NULL)
avail = v;
}
}
if (match) return match;
if (empty) return empty;
return avail;
}
// returns 0 if volume slot is not in use and non-zero if it is
int is_volume_used (const ncVolume * v)
{
if (strlen (v->stateName) == 0)
return 0;
else
return strcmp (v->stateName, VOL_STATE_ATTACHING_FAILED)
&& strcmp (v->stateName, VOL_STATE_DETACHED);
}
// records volume's information in the instance struct, updating
// the non-NULL values if the record already exists
ncVolume * save_volume (ncInstance * instance, const char *volumeId, const char *remoteDev, const char *localDev, const char *localDevReal, const char *stateName)
{
assert (instance!=NULL);
assert (volumeId!=NULL);
ncVolume * v = find_volume (instance, volumeId);
if ( v != NULL) {
safe_strncpy (v->volumeId, volumeId, CHAR_BUFFER_SIZE);
if (remoteDev)
safe_strncpy (v->remoteDev, remoteDev, CHAR_BUFFER_SIZE);
if (localDev)
safe_strncpy (v->localDev, localDev, CHAR_BUFFER_SIZE);
if (localDevReal)
safe_strncpy (v->localDevReal, localDevReal, CHAR_BUFFER_SIZE);
if (stateName)
safe_strncpy (v->stateName, stateName, CHAR_BUFFER_SIZE);
}
return v;
}
// zeroes out the volume's slot in the instance struct (no longer used)
ncVolume * free_volume (ncInstance * instance, const char *volumeId)
{
ncVolume * v = find_volume (instance, volumeId);
if ( v == NULL) {
return NULL; /* not there (and out of room) */
}
if ( strncmp (v->volumeId, volumeId, CHAR_BUFFER_SIZE) ) {
return NULL; /* not there */
} else {
ncVolume * last_v = instance->volumes+(EUCA_MAX_VOLUMES-1);
int slots_left = last_v - v;
/* shift the remaining entries up, empty or not */
if (slots_left)
memmove (v, v+1, slots_left*sizeof(ncVolume));
/* empty the last one */
bzero (last_v, sizeof(ncVolume));
}
return v;
}
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