//!
//! Handles the client describe instance request.
//!
//! @param[in] pStub a pointer to the node controller (NC) stub structure
//! @param[in] pMeta a pointer to the node controller (NC) metadata structure
//! @param[in] instIds a pointer the list of instance identifiers to retrieve data for
//! @param[in] instIdsLen the number of instance identifiers in the instIds list
//! @param[out] outInsts a pointer the list of instances for which we have data
//! @param[out] outInstsLen the number of instances in the outInsts list.
//!
//! @return EUCA_OK on success or EUCA_ERROR on failure.
//!
int ncDescribeInstancesStub(ncStub * pStub, ncMetadata * pMeta, char **instIds, int instIdsLen, ncInstance *** outInsts, int *outInstsLen)
{
int i = 0;
int numinsts = 0;
ncInstance *newinst = NULL;
LOGDEBUG("fakeNC: describeInstances(): params: instIdsLen=%d\n", instIdsLen);
if (instIdsLen < 0) {
LOGERROR("fakeNC: describeInstances(): bad input params\n");
return (EUCA_ERROR);
}
loadNcStuff();
// *outInstsLen = myconfig->instanceidx+1;
*outInsts = EUCA_ZALLOC(MAX_FAKE_INSTANCES, sizeof(ncInstance *));
for (i = 0; i < MAX_FAKE_INSTANCES; i++) {
if (strlen(myconfig->global_instances[i].instanceId)) {
newinst = EUCA_ZALLOC(1, sizeof(ncInstance));
if (!strcmp(myconfig->global_instances[i].stateName, "Pending")) {
snprintf(myconfig->global_instances[i].stateName, 8, "Extant");
}
memcpy(newinst, &(myconfig->global_instances[i]), sizeof(ncInstance));
(*outInsts)[numinsts] = newinst;
LOGDEBUG("fakeNC: describeInstances(): idx=%d numinsts=%d instanceId=%s stateName=%s\n", i, numinsts, newinst->instanceId, newinst->stateName);
numinsts++;
}
}
*outInstsLen = numinsts;
saveNcStuff();
return (EUCA_OK);
}
//!
//! Handles the reboot request of an instance.
//!
//! @param[in] nc a pointer to the NC state structure to initialize
//! @param[in] pMeta a pointer to the node controller (NC) metadata structure
//! @param[in] instanceId the instance identifier string (i-XXXXXXXX)
//!
//! @return EUCA_OK on success or proper error code. Known error code returned include:
//! EUCA_ERROR, EUCA_NOT_FOUND_ERROR, and EUCA_FATAL_ERROR.
//!
static int doRebootInstance(struct nc_state_t *nc, ncMetadata * pMeta, char *instanceId)
{
pthread_t tcb = { 0 };
ncInstance *instance = NULL;
rebooting_thread_params *params = NULL;
sem_p(inst_sem);
{
instance = find_instance(&global_instances, instanceId);
}
sem_v(inst_sem);
if (instance == NULL) {
LOGERROR("[%s] cannot find instance\n", instanceId);
return (EUCA_NOT_FOUND_ERROR);
}
params = EUCA_ZALLOC(1, sizeof(rebooting_thread_params));
memcpy(&(params->instance), instance, sizeof(ncInstance));
memcpy(&(params->nc), nc, sizeof(struct nc_state_t));
// since shutdown/restart may take a while, we do them in a thread
if (pthread_create(&tcb, NULL, rebooting_thread, params)) {
LOGERROR("[%s] failed to spawn a reboot thread\n", instanceId);
return (EUCA_FATAL_ERROR);
}
set_corrid_pthread(get_corrid() != NULL ? get_corrid()->correlation_id : NULL, tcb);
if (pthread_detach(tcb)) {
LOGERROR("[%s] failed to detach the rebooting thread\n", instanceId);
return (EUCA_FATAL_ERROR);
}
return (EUCA_OK);
}
//!
//! Initialize the network driver.
//!
//! @param[in] pConfig a pointer to our application configuration
//!
//! @return 0 on success or 1 if any failure occured.
//!
//! @see
//!
//! @pre
//! - The core application configuration must be completed prior calling
//! - The driver should not be already initialized (if its the case, a no-op will occur)
//! - The pConfig parameter must not be NULL
//!
//! @post
//! On success the driver is properly configured. On failure, the state of
//! the driver is non-deterministic. If the driver was previously initialized,
//! this will result into a no-op.
//!
//! @note
//!
static int network_driver_init(eucanetdConfig * pConfig)
{
int rc = 0;
LOGINFO("Initializing '%s' network driver.\n", DRIVER_NAME());
// Make sure our given pointer is valid
if (!pConfig) {
LOGERROR("Failure to initialize '%s' networking mode. Invalid configuration parameter provided.\n", DRIVER_NAME());
return (1);
}
// Are we already initialized?
if (IS_INITIALIZED()) {
LOGERROR("Networking '%s' mode already initialized. Skipping!\n", DRIVER_NAME());
return (0);
}
// if (PEER_IS_NC(eucanetdPeer)) {
if ((pMidoConfig = EUCA_ZALLOC(1, sizeof(mido_config))) == NULL) {
LOGERROR("Failed to initialize '%s' networking mode. Out of memory!\n", DRIVER_NAME());
return (1);
}
rc = initialize_mido(pMidoConfig, pConfig->eucahome, pConfig->midosetupcore, pConfig->midoeucanetdhost, pConfig->midogwhost, pConfig->midogwip, pConfig->midogwiface,
pConfig->midopubnw, pConfig->midopubgwip, "169.254.0.0", "17");
if (rc) {
LOGERROR("could not initialize mido: please ensure that all required config options for MIDOVPC mode are set in eucalyptus.conf\n");
return (1);
}
// }
// We are now initialize
gInitialized = TRUE;
return (0);
}
//!
//! Allocate and initialize a resource structure with given information. Resource is
//! used to return information about resources
//!
//! @param[in] sNodeStatus the current node status string
//! @param[in] migrationCapable flag indicating whether node can participate in live migration
//! @param[in] sIQN
//! @param[in] memorySizeMax the maximum amount of memory available on this node
//! @param[in] memorySizeAvailable the current amount of memory available on this node
//! @param[in] diskSizeMax the maximum amount of disk space available on this node
//! @param[in] diskSizeAvailable the current amount of disk space available on this node
//! @param[in] numberOfCoresMax the maximum number of cores available on this node
//! @param[in] numberOfCoresAvailable the current number of cores available on this node
//! @param[in] sPublicSubnets the available public subnet for this node
//! @param[in] sHypervisor node's hypervisor
//!
//! @return a pointer to the newly allocated resource structure or NULL if any error occured.
//!
//! @see free_resource()
//!
//! @pre The \p sNodeStatus field must not be NULL.
//!
//! @post On success, a resource structure is allocated and initialized with the given information
//!
//! @note Caller is responsible to free the allocated memory using the free_resource() function call.
//!
ncResource *allocate_resource(const char *sNodeStatus, boolean migrationCapable, const char *sIQN, int memorySizeMax, int memorySizeAvailable, int diskSizeMax,
int diskSizeAvailable, int numberOfCoresMax, int numberOfCoresAvailable, const char *sPublicSubnets, const char *sHypervisor)
{
ncResource *pResource = NULL;
// Make sure we have a valid parameter
if (sNodeStatus == NULL)
return (NULL);
// See if we can allocate our resource structure
if ((pResource = EUCA_ZALLOC(1, sizeof(ncResource))) == NULL)
return (NULL);
//
// Initialize the structure with the given values
//
euca_strncpy(pResource->nodeStatus, sNodeStatus, CHAR_BUFFER_SIZE);
if (sIQN)
euca_strncpy(pResource->iqn, sIQN, CHAR_BUFFER_SIZE);
pResource->migrationCapable = migrationCapable;
if (sPublicSubnets)
euca_strncpy(pResource->publicSubnets, sPublicSubnets, CHAR_BUFFER_SIZE);
if (sHypervisor)
euca_strncpy(pResource->hypervisor, sHypervisor, CHAR_BUFFER_SIZE);
pResource->memorySizeMax = memorySizeMax;
pResource->memorySizeAvailable = memorySizeAvailable;
pResource->diskSizeMax = diskSizeMax;
pResource->diskSizeAvailable = diskSizeAvailable;
pResource->numberOfCoresMax = numberOfCoresMax;
pResource->numberOfCoresAvailable = numberOfCoresAvailable;
return (pResource);
}
//!
//! Serializes the ebs_volume_data struct into a single string that is
//! pointed to by the 'dest' argument
//!
//! @param[in] vol_data
//! @param[in] dest
//!
//! @return
//!
//! @pre
//!
//! @post
//!
//! @note
//!
int serialize_volume(ebs_volume_data * vol_data, char **dest)
{
int out_size = -1;
char *working_string = NULL;
int working_size = -1;
if (vol_data == NULL) {
LOGTRACE("Cannot serialize a NULL to volume string\n");
return EUCA_ERROR;
}
working_size = strlen(vol_data->token) + 1 + strlen(vol_data->volumeId) + 1;
working_string = EUCA_ZALLOC(1, working_size);
if (working_string == NULL) {
LOGERROR("Cannot allocate memory!\n");
return EUCA_ERROR;
}
//Ensure / at end of scURL
out_size = snprintf(working_string, working_size, "%s%s,%s", VOLUME_STRING_PREFIX, vol_data->volumeId, vol_data->token);
if (out_size <= 0 || out_size > working_size) {
EUCA_FREE(working_string);
return EUCA_ERROR;
}
LOGTRACE("Serialized volume struct into %s\n", working_string);
*dest = working_string;
return EUCA_OK;
}
//!
//! Clones an existing instance structure
//!
//! @param[in] old_instance a pointer to the instance to duplicate
//!
//! @return A clone of the existing instance of NULL on failure
//!
//! @see free_instance(), allocate_instance()
//!
//! @pre The \p old_instance field must not be NULL
//!
//! @post A clone of our existing instance is created.
//!
//! @note The caller is responsible to free the allocated instance using the free_instance() API.
//!
ncInstance *clone_instance(const ncInstance * old_instance)
{
ncInstance *new_instance;
// zeroed out for cleaner-looking checkpoints and strings that are empty unless set
if ((new_instance = EUCA_ZALLOC(1, sizeof(ncInstance))) == NULL)
return (NULL);
//! @TODO do not just copy everything
memcpy(new_instance, old_instance, sizeof(ncInstance));
return new_instance;
}
//!
//! Allocate a metadata structure and initialize it. Metadata is present in every type of nc request
//!
//! @param[in] sCorrelationId the correlation identifier string
//! @param[in] sUserId the user identifier
//!
//! @return a pointer to the newly allocated metadata structure or NULL if any error occured.
//!
//! @see free_metadata()
//!
//! @post A metadata structure is allocated and initialized with the provided information
//!
//! @note Caller is responsible for freeing the allocated memory using free_metadata() call.
//!
ncMetadata *allocate_metadata(const char *sCorrelationId, const char *sUserId)
{
ncMetadata *pMeta;
// Try to allocate the structure
if ((pMeta = EUCA_ZALLOC(1, sizeof(ncMetadata))) == NULL)
return (NULL);
//
// Initialize with the provided information
//
pMeta->correlationId = ((sCorrelationId != NULL) ? strdup(sCorrelationId) : NULL);
pMeta->userId = ((sUserId != NULL) ? strdup(sUserId) : NULL);
return (pMeta);
}
//!
//! Initialize the network driver.
//!
//! @param[in] pConfig a pointer to our application configuration
//!
//! @return 0 on success or 1 if any failure occurred.
//!
//! @see
//!
//! @pre
//! - The core application configuration must be completed prior calling
//! - The driver should not be already initialized (if its the case, a no-op will occur)
//! - The pConfig parameter must not be NULL
//!
//! @post
//! On success the driver is properly configured. On failure, the state of
//! the driver is non-deterministic. If the driver was previously initialized,
//! this will result into a no-op.
//!
//! @note
//!
static int network_driver_init(eucanetdConfig * pConfig)
{
int rc = 0;
LOGINFO("Initializing '%s' network driver.\n", DRIVER_NAME());
// Make sure our given pointer is valid
if (!pConfig) {
LOGERROR("Failure to initialize '%s' networking mode. Invalid configuration parameter provided.\n", DRIVER_NAME());
return (1);
}
// Are we already initialized?
if (IS_INITIALIZED()) {
LOGERROR("Networking '%s' mode already initialized. Skipping!\n", DRIVER_NAME());
return (0);
}
if ((pMidoConfig = EUCA_ZALLOC(1, sizeof (mido_config))) == NULL) {
LOGERROR("Failed to initialize '%s' networking mode. Out of memory!\n", DRIVER_NAME());
return (1);
}
rc = initialize_mido(pMidoConfig, pConfig->eucahome, pConfig->flushmode, pConfig->disable_l2_isolation, pConfig->midoeucanetdhost, pConfig->midogwhosts,
pConfig->midopubnw, pConfig->midopubgwip, "169.254.0.0", "17");
if (rc) {
LOGERROR("could not initialize mido: please ensure that all required config options for VPCMIDO mode are set in eucalyptus.conf\n");
EUCA_FREE(pMidoConfig);
return (1);
}
// Release unnecessary handlers
if (pConfig->ipt) {
ipt_handler_close(pConfig->ipt);
}
if (pConfig->ips) {
ips_handler_close(pConfig->ips);
}
if (pConfig->ebt) {
ebt_handler_close(pConfig->ebt);
}
// We are now initialized
gInitialized = TRUE;
return (0);
}
//!
//!
//!
//! @param[in] file
//! @param[in] size
//! @param[in] mode
//!
//! @return the newly allocated string or NULL if any error occured
//!
//! @note caller is responsible to free the allocated memory
//!
char *file2str_seek(char *file, size_t size, int mode)
{
int rc = 0;
int fd = 0;
char *ret = NULL;
struct stat statbuf = { 0 };
if (!file || size <= 0) {
LOGERROR("bad input parameters\n");
return (NULL);
}
if ((ret = EUCA_ZALLOC(size, sizeof(char))) == NULL) {
LOGERROR("out of memory!\n");
return (NULL);
}
if ((rc = stat(file, &statbuf)) >= 0) {
if ((fd = open(file, O_RDONLY)) >= 0) {
if (mode == 1) {
if ((rc = lseek(fd, (off_t) (-1 * size), SEEK_END)) < 0) {
if ((rc = lseek(fd, (off_t) 0, SEEK_SET)) < 0) {
LOGERROR("cannot seek\n");
EUCA_FREE(ret);
close(fd);
return (NULL);
}
}
}
rc = read(fd, ret, (size) - 1);
close(fd);
} else {
LOGERROR("cannot open '%s' read-only\n", file);
EUCA_FREE(ret);
return (NULL);
}
} else {
LOGERROR("cannot stat console_output file '%s'\n", file);
EUCA_FREE(ret);
return (NULL);
}
return (ret);
}
//!
//! Allocates sem structure from an already allocated Posix named semaphore; sem_p/v can
//! be used with it; freeing the sem struct also closes the Posix semaphore that was passed
//! in.
//!
//! @param[in] pExternalLock a pointer to the posix semaphore structure to use.
//!
//! @return a pointer to the newly created semaphore or NULL if any failure occured.
//!
//! @pre The external_lock parameter must not be NULL
//!
//! @post On success a new sem structure is allocated and initialized with the external_lock.
//!
sem *sem_alloc_posix(sem_t * pExternalLock)
{
sem *pSem = NULL;
// Name sure or parameter is valid
if (pExternalLock != NULL) {
// Allocate memory for our duplicate semaphore
if ((pSem = EUCA_ZALLOC(1, sizeof(sem))) == NULL)
return (NULL);
// Set the dependency
pSem->posix = pExternalLock;
pSem->name = strdup("unknown");
return (pSem);
}
return (NULL);
}
//!
//! Allocate a new bundle task for the given instance
//!
//! @param[in] pInstance pointer to the instance we're creating a bundling task for
//!
//! @return A newly allocated pointer to the bundle task structure if successful or NULL if
//! the given pInstance structure is NULL or if we cannot allocate memory.
//!
//! @pre The \p pInstance field must not be NULL
//!
//! @post A newly allocated structure is allocated and initialized.
//!
//! @note The caller is responsible for freeing the allocated memory
//!
bundleTask *allocate_bundleTask(ncInstance * pInstance)
{
bundleTask *pBundle = NULL;
// Make sure out given parameter is valid
if (pInstance != NULL) {
if ((pBundle = EUCA_ZALLOC(1, sizeof(bundleTask))) == NULL) {
LOGERROR("out of memory\n");
return (NULL);
}
// initialize our newly allocated structure.
snprintf(pBundle->instanceId, CHAR_BUFFER_SIZE, "%s", pInstance->instanceId);
snprintf(pBundle->state, CHAR_BUFFER_SIZE, "%s", pInstance->bundleTaskStateName);
return (pBundle);
}
return (NULL);
}
//!
//! Adds an instance to an instance linked list
//!
//! @param[in,out] ppHead a pointer to the pointer to the head of the list
//! @param[in] pInstance a pointer to the instance to add to the list
//!
//! @return EUCA_OK on success or the following error code:
//! \li EUCA_MEMORY_ERROR: if we fail to allocate memory
//! \li EUCA_INVALID_ERROR: if any of our parameter does not meet the pre-condition
//! \li EUCA_DUPLICATE_ERROR: if the instance is already part of this list
//!
//! @pre \li Both \p ppHead and \p pInstance field must not be NULL.
//! \li The instance must not be part of the list
//!
//! @post The instance is added to the list. If this is the first instance in the list,
//! the \p ppHead value is updated to point to this instance.
//!
int add_instance(bunchOfInstances ** ppHead, ncInstance * pInstance)
{
bunchOfInstances *pNew = NULL;
bunchOfInstances *pLast = NULL;
bunchOfInstances *pNext = NULL;
// Make sure our paramters are valid
if ((ppHead == NULL) || (pInstance == NULL))
return (EUCA_INVALID_ERROR);
// Try to allocate memory for our instance list node
if ((pNew = EUCA_ZALLOC(1, sizeof(bunchOfInstances))) == NULL)
return (EUCA_MEMORY_ERROR);
// Initialize our node
pNew->instance = pInstance;
pNew->next = NULL;
// Are we the first item in this list?
if (*ppHead == NULL) {
*ppHead = pNew;
(*ppHead)->count = 1;
} else {
pNext = *ppHead;
//
// Process the list to make sure we're not trying to add a duplicate
//
do {
pLast = pNext;
if (!strcmp(pLast->instance->instanceId, pInstance->instanceId)) {
EUCA_FREE(pNew);
return (EUCA_DUPLICATE_ERROR);
}
pNext = pLast->next;
} while (pLast->next);
// We're at the end so add it there.
pLast->next = pNew;
(*ppHead)->count++;
}
return (EUCA_OK);
}
//!
//! Parses the volume string and returns a newly allocated ebs_volume_data structure via the parameter.
//! Caller must free the returned structure.
//! Format expected:
//! sc://volumeId,token.
//! OR
//! http://schost:port/services/Storage/volumeId,token
//!
//! @param[in] volume_string containing the encoded volume information
//! @param[in] dest a pointer to a pointer for ebs_volume_data, the referenced pointer will be set to newly allocated struct
//!
//! @return ok|fail
//!
//! @pre
//!
//! @post
//!
//! @note
//!
int deserialize_volume(char *volume_string, ebs_volume_data ** dest)
{
if (volume_string == NULL || strlen(volume_string) <= strlen(VOLUME_STRING_PREFIX)) {
*dest = NULL;
return EUCA_ERROR;
}
ebs_volume_data *vol_data = EUCA_ZALLOC(1, sizeof(ebs_volume_data));
if (vol_data == NULL) {
LOGERROR("Cannot allocate memory!\n");
*dest = NULL;
return EUCA_ERROR;
}
char *volume_start = volume_string + strlen(VOLUME_STRING_PREFIX); //skip the prefix.
if (volume_start == NULL) {
LOGERROR("Failed parsing token string: %s\n", volume_string);
EUCA_FREE(vol_data);
return EUCA_ERROR;
}
char *token_start = strchr(volume_start, ',');
if (token_start == NULL) {
LOGERROR("Failed parsing token string: %s\n", volume_string);
EUCA_FREE(vol_data);
return EUCA_ERROR;
}
token_start += sizeof(char); //Go 1 past the comma delimiter
if (euca_strncpy(vol_data->volumeId, volume_start, token_start - volume_start) == NULL) {
EUCA_FREE(vol_data);
return EUCA_ERROR;
}
if (euca_strncpy(vol_data->token, token_start, strlen(token_start) + 1) == NULL) {
EUCA_FREE(vol_data);
return EUCA_ERROR;
}
*dest = vol_data;
return EUCA_OK;
}
//!
//!
//!
//! @return
//!
//! @pre
//!
//! @note
//!
int clean_network_state(void)
{
int rc = 0;
int i = 0;
char cmd[MAX_PATH] = { 0 };
char file[MAX_PATH] = { 0 };
char rootwrap[MAX_PATH] = { 0 };
char *pidstr = NULL;
char *ipstr = NULL;
vnetConfig *tmpvnetconfig = NULL;
tmpvnetconfig = EUCA_ZALLOC(1, sizeof(vnetConfig));
if (!tmpvnetconfig) {
LOGERROR("out of memory\n");
return -1;
}
memcpy(tmpvnetconfig, vnetconfig, sizeof(vnetConfig));
rc = vnetUnsetMetadataRedirect(tmpvnetconfig);
if (rc) {
LOGWARN("failed to unset metadata redirect\n");
}
for (i = 1; i < NUMBER_OF_PUBLIC_IPS; i++) {
if (tmpvnetconfig->publicips[i].ip != 0 && tmpvnetconfig->publicips[i].allocated != 0) {
ipstr = hex2dot(tmpvnetconfig->publicips[i].ip);
snprintf(cmd, MAX_PATH, EUCALYPTUS_ROOTWRAP " ip addr del %s/32 dev %s", config->eucahome, SP(ipstr), tmpvnetconfig->pubInterface);
LOGDEBUG("running command '%s'\n", cmd);
rc = system(cmd);
rc = rc >> 8;
if (rc && rc != 2) {
LOGERROR("running cmd '%s' failed: cannot remove ip %s\n", cmd, SP(ipstr));
}
EUCA_FREE(ipstr);
}
}
//!
//! Loads an instance structure data from the instance.xml file under the instance's
//! work blobstore path.
//!
//! @param[in] instanceId the instance identifier string (i-XXXXXXXX)
//!
//! @return A pointer to the instance structure if successful or otherwise NULL.
//!
//! @pre The instanceId parameter must not be NULL.
//!
//! @post On success, a newly allocated pointer to the instance is returned where the stateCode
//! is set to NO_STATE.
//!
ncInstance *load_instance_struct(const char *instanceId)
{
DIR *insts_dir = NULL;
char tmp_path[EUCA_MAX_PATH] = "";
char user_paths[EUCA_MAX_PATH] = "";
char checkpoint_path[EUCA_MAX_PATH] = "";
ncInstance *instance = NULL;
struct dirent *dir_entry = NULL;
struct stat mystat = { 0 };
// Allocate memory for our instance
if ((instance = EUCA_ZALLOC(1, sizeof(ncInstance))) == NULL) {
LOGERROR("out of memory (for instance struct)\n");
return (NULL);
}
// We know the instance indentifier
euca_strncpy(instance->instanceId, instanceId, sizeof(instance->instanceId));
// we don't know userId, so we'll look for instanceId in every user's
// directory (we're assuming that instanceIds are unique in the system)
set_path(user_paths, sizeof(user_paths), NULL, NULL);
if ((insts_dir = opendir(user_paths)) == NULL) {
LOGERROR("failed to open %s\n", user_paths);
goto free;
}
// Scan every path under the user path for one that conaints our instance
while ((dir_entry = readdir(insts_dir)) != NULL) {
snprintf(tmp_path, sizeof(tmp_path), "%s/%s/%s", user_paths, dir_entry->d_name, instance->instanceId);
if (stat(tmp_path, &mystat) == 0) {
// found it. Now save our user identifier
euca_strncpy(instance->userId, dir_entry->d_name, sizeof(instance->userId));
break;
}
}
// Done with the directory
closedir(insts_dir);
insts_dir = NULL;
// Did we really find one?
if (strlen(instance->userId) < 1) {
LOGERROR("didn't find instance %s\n", instance->instanceId);
goto free;
}
// set various instance-directory-relative paths in the instance struct
set_instance_paths(instance);
// Check if there is a binary checkpoint file, used by versions up to 3.3,
// and load metadata from it (as part of a "warm" upgrade from 3.3.0 and 3.3.1).
set_path(checkpoint_path, sizeof(checkpoint_path), instance, "instance.checkpoint");
set_path(instance->xmlFilePath, sizeof(instance->xmlFilePath), instance, INSTANCE_FILE_NAME);
if (check_file(checkpoint_path) == 0) {
ncInstance33 instance33;
{ // read in the checkpoint
int fd = open(checkpoint_path, O_RDONLY);
if (fd < 0) {
LOGERROR("failed to load metadata for %s from %s: %s\n", instance->instanceId, checkpoint_path, strerror(errno));
goto free;
}
size_t meta_size = (size_t) sizeof(ncInstance33);
assert(meta_size <= SSIZE_MAX); // beyond that read() behavior is unspecified
ssize_t bytes_read = read(fd, &instance33, meta_size);
close(fd);
if (bytes_read < meta_size) {
LOGERROR("metadata checkpoint for %s (%ld bytes) in %s is too small (< %ld)\n", instance->instanceId, bytes_read, checkpoint_path, meta_size);
goto free;
}
}
// Convert the 3.3 struct into the current struct.
// Currently, a copy is sufficient, but if ncInstance
// ever changes so that its beginning differs from ncInstanc33,
// we may have to write something more elaborate or to break
// the ability to upgrade from 3.3. We attempt to detect such a
// change with the following if-statement, which compares offsets
// in the structs of the last member in the 3.3 version.
if (((unsigned long)&(instance->last_stat) - (unsigned long)instance)
!= ((unsigned long)&(instance33.last_stat) - (unsigned long)&instance33)) {
LOGERROR("BUG: upgrade from v3.3 is not possible due to changes to instance struct\n");
goto free;
}
memcpy(instance, &instance33, sizeof(ncInstance33));
LOGINFO("[%s] upgraded instance checkpoint from v3.3\n", instance->instanceId);
} else { // no binary checkpoint, so we expect an XML-formatted checkpoint
if (read_instance_xml(instance->xmlFilePath, instance) != EUCA_OK) {
LOGERROR("failed to read instance XML\n");
goto free;
}
}
// Reset some fields for safety since they would now be wrong
instance->stateCode = NO_STATE;
instance->params.root = NULL;
instance->params.kernel = NULL;
instance->params.ramdisk = NULL;
instance->params.swap = NULL;
instance->params.ephemeral0 = NULL;
// fix up the pointers
vbr_parse(&(instance->params), NULL);
// perform any upgrade-related manipulations to bring the struct up to date
// save the struct back to disk after the upgrade routine had a chance to modify it
if (gen_instance_xml(instance) != EUCA_OK) {
LOGERROR("failed to create instance XML in %s\n", instance->xmlFilePath);
goto free;
}
// remove the binary checkpoint because it is no longer needed and not used past 3.3
unlink(checkpoint_path);
return (instance);
free:
EUCA_FREE(instance);
return (NULL);
}
//!
//!
//!
//! @param[in] euca_home
//! @param[in] rundir_path
//! @param[in] instName
//!
//! @return EUCA_OK on success or proper error code. Known error code returned include: EUCA_ERROR,
//! EUCA_IO_ERROR and EUCA_MEMORY_ERROR.
//!
int make_credential_floppy(char *euca_home, ncInstance * instance)
{
int fd = 0;
int rc = 0;
int rbytes = 0;
int count = 0;
int ret = EUCA_ERROR;
char dest_path[1024] = "";
char source_path[1024] = "";
char *ptr = NULL;
char *buf = NULL;
char *tmp = NULL;
char *rundir_path = instance->instancePath;
if (!euca_home || !rundir_path || !strlen(euca_home) || !strlen(rundir_path)) {
return (EUCA_ERROR);
}
snprintf(source_path, 1024, EUCALYPTUS_HELPER_DIR "/floppy", euca_home);
snprintf(dest_path, 1024, "%s/floppy", rundir_path);
if ((buf = EUCA_ALLOC(1024 * 2048, sizeof(char))) == NULL) {
ret = EUCA_MEMORY_ERROR;
goto cleanup;
}
if ((fd = open(source_path, O_RDONLY)) < 0) {
ret = EUCA_IO_ERROR;
goto cleanup;
}
rbytes = read(fd, buf, 1024 * 2048);
close(fd);
if (rbytes < 0) {
ret = EUCA_IO_ERROR;
goto cleanup;
}
tmp = EUCA_ZALLOC(KEY_STRING_SIZE, sizeof(char));
if (!tmp) {
ret = EUCA_MEMORY_ERROR;
goto cleanup;
}
ptr = buf;
count = 0;
while (count < rbytes) {
memcpy(tmp, ptr, strlen("MAGICEUCALYPTUSINSTPUBKEYPLACEHOLDER"));
if (!strcmp(tmp, "MAGICEUCALYPTUSINSTPUBKEYPLACEHOLDER")) {
memcpy(ptr, instance->instancePubkey, strlen(instance->instancePubkey));
} else if (!strcmp(tmp, "MAGICEUCALYPTUSAUTHPUBKEYPLACEHOLDER")) {
memcpy(ptr, instance->euareKey, strlen(instance->euareKey));
} else if (!strcmp(tmp, "MAGICEUCALYPTUSAUTHSIGNATPLACEHOLDER")) {
memcpy(ptr, instance->instanceToken, strlen(instance->instanceToken));
} else if (!strcmp(tmp, "MAGICEUCALYPTUSINSTPRIKEYPLACEHOLDER")) {
memcpy(ptr, instance->instancePk, strlen(instance->instancePk));
}
ptr++;
count++;
}
if ((fd = open(dest_path, O_CREAT | O_TRUNC | O_RDWR, 0700)) < 0) {
ret = EUCA_IO_ERROR;
goto cleanup;
}
rc = write(fd, buf, rbytes);
close(fd);
if (rc != rbytes) {
ret = EUCA_IO_ERROR;
goto cleanup;
}
ret = EUCA_OK;
cleanup:
if (buf != NULL)
EUCA_FREE(buf);
if (tmp != NULL)
EUCA_FREE(tmp);
return ret;
}
//!
//! Allocate a new semaphore with the given name and mutex starting value.
//!
//! @param[in] val the starting mutex count
//! @param[in] typeName the type of semaphore. If 'mutex' then pthread mutexis used if any other
//! name then posix named semaphore is used if an empty name then SYS V IPC
//! semaphore is implied.
//! @param[in] flags Kernel encoding of open mode
//!
//! @return a pointer to the newly allocated semaphore or NULL if a failure occured
//!
//! @see sem_free()
//!
//! @pre The name field must not be NULL.
//!
//! @post On success, a semaphore structure is allocated and initialized
//!
//! @note Caller is responsible to free allocated memory for this semaphore. Call to sem_free() is
//! prefered for this operation
//!
sem *sem_realloc(const int val, const char *typeName, u32 flags)
{
sem *pSem = NULL;
char addr[24] = "";
DECLARE_ARG;
// Validate the name parameter
assert(typeName);
// Check if we can allocate memory for our zemaphore
if ((pSem = EUCA_ZALLOC(1, sizeof(sem))) == NULL)
return (NULL);
// Initialize our type independent fields
pSem->sysv = -1;
pSem->flags = flags;
// save the address of this semaphore for future use
snprintf(addr, sizeof(addr), "%p", pSem);
//
// Initialize our semphore base on the requested type
//
if (!strcmp(typeName, IPC_MUTEX_SEMAPHORE)) {
// use pthread mutex
pSem->usemutex = 1;
pSem->mutcount = val;
pSem->mutwaiters = 0;
pthread_mutex_init(&(pSem->mutex), NULL);
pthread_cond_init(&(pSem->cond), NULL);
// In this case we'll use the address of the semaphore rather than the name
pSem->name = strdup(addr);
} else if (strlen(typeName) > 0) {
// named semaphores
if (pSem->flags & O_EXCL) {
// clean up in case previous sem holder crashed
if (sem_unlink(typeName) == 0) {
LOGINFO("cleaning up old semaphore %s\n", typeName);
}
}
// Create a new semaphore with this name.
if ((pSem->posix = sem_open(typeName, O_CREAT | flags, 0644, val)) == SEM_FAILED) {
EUCA_FREE(pSem);
return (NULL);
}
pSem->name = strdup(typeName);
} else {
// SYS V IPC semaphores
if ((pSem->sysv = semget(IPC_PRIVATE, 1, (IPC_CREAT | IPC_EXCL | S_IRUSR | S_IWUSR))) < 0) {
EUCA_FREE(pSem);
return (NULL);
}
// Set the value
arg.val = val;
if (semctl(pSem->sysv, 0, SETVAL, arg) == -1) {
EUCA_FREE(pSem);
return (NULL);
}
// In this case we'll use the address of the semaphore rather than the name
pSem->name = strdup(addr);
}
return (pSem);
}
//!
//!
//!
//! @param[in] describeServices
//! @param[in] env pointer to the AXIS2 environment structure
//!
//! @return
//!
//! @pre
//!
//! @note
//!
adb_DescribeServicesResponse_t *DescribeServicesMarshal(adb_DescribeServices_t * describeServices, const axutil_env_t * env)
{
adb_DescribeServicesResponse_t *ret = NULL;
adb_describeServicesResponseType_t *adbresp = NULL;
adb_describeServicesType_t *adbinput = NULL;
int rc;
axis2_bool_t status = AXIS2_TRUE;
char statusMessage[256];
ncMetadata ccMeta;
serviceStatusType *outStatuses = NULL;
serviceInfoType *serviceIds = NULL;
int serviceIdsLen = 0, outStatusesLen = 0, i;
adbinput = adb_DescribeServices_get_DescribeServices(describeServices, env);
adbresp = adb_describeServicesResponseType_create(env);
EUCA_MESSAGE_UNMARSHAL(describeServicesType, adbinput, (&ccMeta));
adb_describeServicesResponseType_set_correlationId(adbresp, env, adb_describeServicesType_get_correlationId(adbinput, env));
adb_describeServicesResponseType_set_userId(adbresp, env, adb_describeServicesType_get_userId(adbinput, env));
// localDev = adb_describeServicesType_get_localDev(adbinput, env);
serviceIdsLen = adb_describeServicesType_sizeof_serviceIds(adbinput, env);
serviceIds = EUCA_ZALLOC(serviceIdsLen, sizeof(serviceInfoType));
for (i = 0; i < serviceIdsLen; i++) {
copy_service_info_type_from_adb(&(serviceIds[i]), adb_describeServicesType_get_serviceIds_at(adbinput, env, i), env);
}
status = AXIS2_TRUE;
rc = doDescribeServices(&ccMeta, serviceIds, serviceIdsLen, &outStatuses, &outStatusesLen);
if (rc) {
logprintf("ERROR: doDescribeServices() returned FAIL\n");
status = AXIS2_FALSE;
snprintf(statusMessage, 255, "ERROR");
}
for (i = 0; i < outStatusesLen; i++) {
adb_serviceStatusType_t *stt;
adb_serviceInfoType_t *sit;
stt = adb_serviceStatusType_create(env);
adb_serviceStatusType_set_localState(stt, env, outStatuses[i].localState);
adb_serviceStatusType_set_localEpoch(stt, env, outStatuses[i].localEpoch);
adb_serviceStatusType_add_details(stt, env, outStatuses[i].details);
sit = copy_service_info_type_to_adb(env, &(outStatuses[i].serviceId));
adb_serviceStatusType_set_serviceId(stt, env, sit);
adb_describeServicesResponseType_add_serviceStatuses(adbresp, env, stt);
}
EUCA_FREE(outStatuses);
EUCA_FREE(serviceIds);
adb_describeServicesResponseType_set_return(adbresp, env, status);
if (status == AXIS2_FALSE) {
adb_describeServicesResponseType_set_statusMessage(adbresp, env, statusMessage);
}
ret = adb_DescribeServicesResponse_create(env);
adb_DescribeServicesResponse_set_DescribeServicesResponse(ret, env, adbresp);
return (ret);
}
//!
//!
//!
//! @param[in] req
//!
//! @return EUCA_OK on success or EUCA_ERROR on failure
//!
int prepare_validate(imager_request * req)
{
int i = 0;
int num_sda_parts = 0;
imager_param *p = NULL;
prepare_params *state = NULL;
print_req(req);
if ((state = EUCA_ZALLOC(1, sizeof(prepare_params))) == NULL)
err("out of memory");
// set defaults
state->bootable = FALSE;
state->cache = TRUE;
state->work = FALSE;
state->action = ACTION_DOWNLOAD | ACTION_CONVERT;
// record in 'state' all specified parameters
for (p = req->params; p != NULL && p->key != NULL; p++) {
if (strcmp(p->key, _CACHE) == 0) {
state->cache = parse_boolean(p->val);
} else if (strcmp(p->key, _BOOT) == 0) {
state->bootable = parse_boolean(p->val);
} else if (strcmp(p->key, _ID) == 0) {
state->id = p->val;
} else if (strcmp(p->key, _KEY) == 0) {
state->sshkey = parse_loginpassword(p->val);
} else if (strcmp(p->key, _OUT) == 0) {
state->out = p->val;
} else if (strcmp(p->key, _WORK) == 0) {
state->work = parse_boolean(p->val);
} else if (strcmp(p->key, _VBR) == 0) {
if (state->total_vbrs == (EUCA_MAX_VBRS - 1))
err("too many vbr= parameters");
state->vbrs[state->total_vbrs++] = p->val;
if (strstr(p->val, ":sda1:") != NULL || strstr(p->val, ":sda2:") != NULL || strstr(p->val, ":sda3:") != NULL) {
num_sda_parts++;
}
} else if (strcmp(p->key, _ACTION) == 0) {
if (strcmp(p->val, "download") == 0) {
state->action = ACTION_DOWNLOAD;
} else if (strcmp(p->val, "convert") == 0) {
state->action = ACTION_CONVERT;
} else {
err("unknown action parameter '%s' for command 'prepare'", p->val);
}
} else {
err("invalid parameter '%s' for command 'prepare'", p->key);
}
}
// ensure mandatory params are present
if (state->total_vbrs < 1)
err("not a single VBR was specified");
LOGINFO("actions: download=%s convert=%s\n",
(state->action & ACTION_DOWNLOAD) ? ("yes") : ("no"),
(state->action & ACTION_CONVERT) ? ("yes") : ("no"))
// if a bootable disk is requested and the expected number of partitions is present,
// then add the boot VBR entry so an extra, 4th, boot partition will get created
if (state->bootable && num_sda_parts > 0) {
char buf[1024];
snprintf(buf, sizeof(buf), BOOT_VBR_FORMAT, num_sda_parts+1);
state->vbrs[state->total_vbrs++] = strdup(buf);
}
for (i = 0; i < state->total_vbrs; i++) {
if (vbr_add_ascii(state->vbrs[i], &(state->vm)))
err("failed to add VBR record '%s'", state->vbrs[i]);
}
if (vbr_parse(&(state->vm), NULL) != EUCA_OK)
err("failed to validate VBR records");
// if given an empty key file, just set the pointer to NULL
if (state->sshkey && strlen(state->sshkey) == 0) {
EUCA_FREE(state->sshkey);
}
// save pointer to find it later
req->internal = ((void *)state);
return (EUCA_OK);
}
//!
//! Allocate a new MAP entry
//!
//! @param[in] size unused parameter
//!
//! @return a pointer to the new map entry structure or NULL if any error occured
//!
map *map_create(int size)
{
return ((map *) EUCA_ZALLOC(1, sizeof(map)));
}
//!
//! Creates and initialize an NC stub entry
//!
//! @param[in] endpoint_uri the endpoint URI string
//! @param[in] logfile the log file name string
//! @param[in] homedir the home directory path string
//!
//! @return a pointer to the newly created NC stub structure
//!
ncStub *ncStubCreate(char *endpoint_uri, char *logfile, char *homedir)
{
return (EUCA_ZALLOC(1, sizeof(ncStub)));
}
//!
//!
//!
//! @param[in] pMeta a pointer to the node controller (NC) metadata structure
//! @param[in] serviceIds a list of service info.
//! @param[in] serviceIdsLen the number of service info in the serviceIds list
//! @param[out] outStatuses list of service status
//! @param[out] outStatusesLen number of service status in the outStatuses list
//!
//! @return
//!
//! @pre
//!
//! @note
//!
int doDescribeServices(ncMetadata * pMeta, serviceInfoType * serviceIds, int serviceIdsLen, serviceStatusType ** outStatuses, int *outStatusesLen)
{
int rc = 0;
int i = 0;
int j = 0;
int port = 0;
char uri[MAX_PATH] = { 0 };
char uriType[32] = { 0 };
char host[MAX_PATH] = { 0 };
char path[MAX_PATH] = { 0 };
serviceStatusType *myStatus = NULL;
int do_report_cluster = 1; // always do report on the cluster, otherwise CC won't get ENABLED
int do_report_nodes = 0;
int do_report_all = 0;
char *my_partition = NULL;
rc = initialize(pMeta, TRUE); // DescribeServices is the only authoritative source of epoch
if (rc) {
return (1);
}
LOGDEBUG("invoked: userId=%s, serviceIdsLen=%d\n", SP(pMeta ? pMeta->userId : "UNKNOWN"), serviceIdsLen);
//! @TODO for now, return error if list of services is passed in as parameter
/*
if (serviceIdsLen > 0) {
LOGERROR("DescribeServices(): received non-zero number of input services, returning fail\n");
*outStatusesLen = 0;
*outStatuses = NULL;
return(1);
}
*/
sem_mywait(CONFIG);
{
if (!strcmp(config->ccStatus.serviceId.name, "self")) {
for (i = 0; i < serviceIdsLen; i++) {
LOGDEBUG("received input serviceId[%d]\n", i);
if (strlen(serviceIds[i].type)) {
if (!strcmp(serviceIds[i].type, "cluster")) {
snprintf(uri, MAX_PATH, "%s", serviceIds[i].uris[0]);
rc = tokenize_uri(uri, uriType, host, &port, path);
if (strlen(host)) {
LOGDEBUG("setting local serviceId to input serviceId (type=%s name=%s partition=%s)\n",
SP(serviceIds[i].type), SP(serviceIds[i].name), SP(serviceIds[i].partition));
memcpy(&(config->ccStatus.serviceId), &(serviceIds[i]), sizeof(serviceInfoType));
}
} else if (!strcmp(serviceIds[i].type, "node")) {
do_report_nodes = 1; // report on node services if requested explicitly
}
}
}
}
}
sem_mypost(CONFIG);
if (serviceIdsLen < 1) { // if the describe request is not specific, report on everything
do_report_cluster = 1;
do_report_nodes = 1;
do_report_all = 1;
} else { // if the describe request is specific, identify which types are requested
do_report_cluster = 0;
do_report_nodes = 0;
do_report_all = 0;
for (i = 0; i < serviceIdsLen; i++) {
LOGDEBUG("received input serviceId[%d]: %s %s %s %s\n", i, serviceIds[i].type, serviceIds[i].partition, serviceIds[i].name, serviceIds[i].uris[0]);
if (strlen(serviceIds[i].type)) {
if (!strcmp(serviceIds[i].type, "cluster")) {
do_report_cluster = 1; // report on cluster services if requested explicitly
} else if (!strcmp(serviceIds[i].type, "node")) {
do_report_nodes++; // count number of and report on node services if requested explicitly
}
}
}
}
for (i = 0; i < 16; i++) {
if (strlen(config->services[i].type)) {
LOGDEBUG("internal serviceInfos type=%s name=%s partition=%s urisLen=%d\n", config->services[i].type,
config->services[i].name, config->services[i].partition, config->services[i].urisLen);
if (!strcmp(config->services[i].type, "cluster")) {
my_partition = config->services[i].partition;
}
for (j = 0; j < MAX_SERVICE_URIS; j++) {
if (strlen(config->services[i].uris[j])) {
LOGDEBUG("internal serviceInfos\t uri[%d]:%s\n", j, config->services[i].uris[j]);
}
}
}
}
for (i = 0; i < 16; i++) {
if (strlen(config->disabledServices[i].type)) {
LOGDEBUG("internal disabled serviceInfos type=%s name=%s partition=%s urisLen=%d\n", config->disabledServices[i].type,
config->disabledServices[i].name, config->disabledServices[i].partition, config->disabledServices[i].urisLen);
for (j = 0; j < MAX_SERVICE_URIS; j++) {
if (strlen(config->disabledServices[i].uris[j])) {
LOGDEBUG("internal disabled serviceInfos\t uri[%d]:%s\n", j, config->disabledServices[i].uris[j]);
}
}
}
}
for (i = 0; i < 16; i++) {
if (strlen(config->notreadyServices[i].type)) {
LOGDEBUG("internal not ready serviceInfos type=%s name=%s partition=%s urisLen=%d\n", config->notreadyServices[i].type,
config->notreadyServices[i].name, config->notreadyServices[i].partition, config->notreadyServices[i].urisLen);
for (j = 0; j < MAX_SERVICE_URIS; j++) {
if (strlen(config->notreadyServices[i].uris[j])) {
LOGDEBUG("internal not ready serviceInfos\t uri[%d]:%s\n", j, config->notreadyServices[i].uris[j]);
}
}
}
}
*outStatusesLen = 0;
*outStatuses = NULL;
if (do_report_cluster) {
(*outStatusesLen) += 1;
*outStatuses = EUCA_ZALLOC(1, sizeof(serviceStatusType));
if (!*outStatuses) {
LOGFATAL("out of memory!\n");
unlock_exit(1);
}
myStatus = *outStatuses;
snprintf(myStatus->localState, 32, "%s", config->ccStatus.localState); // ENABLED, DISABLED, STOPPED, NOTREADY
snprintf(myStatus->details, 1024, "%s", config->ccStatus.details); // string that gets printed by 'euca-describe-services -E'
myStatus->localEpoch = config->ccStatus.localEpoch;
memcpy(&(myStatus->serviceId), &(config->ccStatus.serviceId), sizeof(serviceInfoType));
LOGDEBUG("external services\t uri[%d]: %s %s %s %s %s\n",
0, myStatus->serviceId.type, myStatus->serviceId.partition, myStatus->serviceId.name, myStatus->localState, myStatus->serviceId.uris[0]);
}
if (do_report_nodes) {
extern ccResourceCache *resourceCache;
ccResourceCache resourceCacheLocal;
sem_mywait(RESCACHE);
memcpy(&resourceCacheLocal, resourceCache, sizeof(ccResourceCache));
sem_mypost(RESCACHE);
if (resourceCacheLocal.numResources > 0 && my_partition != NULL) { // parition is unknown at early stages of CC initialization
for (int idIdx = 0; idIdx < serviceIdsLen; idIdx++) {
if (do_report_all || !strcmp(serviceIds[idIdx].type, "node")) {
for (int rIdx = 0; rIdx < resourceCacheLocal.numResources; rIdx++) {
ccResource *r = resourceCacheLocal.resources + rIdx;
if (do_report_all || (strlen(serviceIds[idIdx].name) && strlen(r->ip) && !strcmp(serviceIds[idIdx].name, r->ip))) {
// we have a node that we want to report about
(*outStatusesLen) += 1;
*outStatuses = EUCA_REALLOC(*outStatuses, *outStatusesLen, sizeof(serviceStatusType));
if (*outStatuses == NULL) {
LOGFATAL("out of memory! (outStatusesLen=%d)\n", *outStatusesLen);
unlock_exit(1);
}
myStatus = *outStatuses + *outStatusesLen - 1;
{
int resState = r->state;
int resNcState = r->ncState;
char *state = "BUGGY";
char *msg = "";
if (resState == RESUP) {
if (resNcState == ENABLED) {
state = "ENABLED";
msg = "the node is operating normally";
} else if (resNcState == STOPPED) {
state = "STOPPED";
msg = "the node is not accepting new instances";
} else if (resNcState == NOTREADY) {
state = "NOTREADY";
if (strnlen(r->nodeMessage, 1024)) {
msg = r->nodeMessage;
} else {
msg = "the node is currently experiencing problems and needs attention";
}
}
} else if (resState == RESASLEEP || resState == RESWAKING) {
state = "NOTREADY";
msg = "the node is currently in the sleep state";
} else if (resState == RESDOWN) {
state = "NOTREADY";
if (strnlen(r->nodeMessage, 1024)) {
msg = r->nodeMessage;
} else {
msg = "the node is not responding to the cluster controller";
}
}
snprintf(myStatus->localState, 32, "%s", state);
snprintf(myStatus->details, 1024, "%s", msg); // string that gets printed by 'euca-describe-services -E'
}
myStatus->localEpoch = config->ccStatus.localEpoch;
sprintf(myStatus->serviceId.type, "node");
sprintf(myStatus->serviceId.name, r->hostname);
sprintf(myStatus->serviceId.partition, config->ccStatus.serviceId.partition);
sprintf(myStatus->serviceId.uris[0], r->ncURL);
myStatus->serviceId.urisLen = 1;
LOGDEBUG("external services\t uri[%d]: %s %s %s %s %s\n",
idIdx, myStatus->serviceId.type, myStatus->serviceId.partition, myStatus->serviceId.name, myStatus->localState, myStatus->serviceId.uris[0]);
}
}
}
}
}
}
LOGDEBUG("done\n");
return (0);
}
//!
//! Allocate and initialize an instance structure with given information. Instances are
//! present in instance-related requests.
//!
//! @param[in] sUUID the unique user identifier string
//! @param[in] sInstanceId the instance identifier string (i-XXXXXXXX)
//! @param[in] sReservationId the reservation identifier string
//! @param[in] pVirtMachine a pointer to our virtual machine parametes
//! @param[in] sStateName the current instance state name string
//! @param[in] stateCode the current instance state code
//! @param[in] sUserId the user identifier string
//! @param[in] sOwnerId the owner identifier string
//! @param[in] sAccountId the account identifier string
//! @param[in] pNetCfg a pointer to the network configuration of this instance
//! @param[in] sKeyName the SSH key name to use
//! @param[in] sUserData user data string to pass to the instance
//! @param[in] sLaunchIndex the instance's launch index
//! @param[in] sPlatform the instance's platform type
//! @param[in] expiryTime the instance's expiration time before it reaches running
//! @param[in] asGroupNames an array list of group name string
//! @param[in] groupNamesSize the number of group name in the asGroupNames list
//! @param[in] asGroupIds an array list of group identifier string
//! @param[in] groupIdsSize the number of group name in the asGroupIds list
//!
//! @return a pointer to the newly allocated instance structure or NULL if any error occured.
//!
//! @see add_instance()
//! @see free_instance()
//!
//! @post On succes an instance structure is allocated and initialized with the given information.
//!
ncInstance *allocate_instance(const char *sUUID, const char *sInstanceId, const char *sReservationId, virtualMachine * pVirtMachine,
const char *sStateName, int stateCode, const char *sUserId, const char *sOwnerId, const char *sAccountId,
netConfig * pNetCfg, const char *sKeyName, const char *sUserData, const char *sLaunchIndex, const char *sPlatform,
int expiryTime, char **asGroupNames, int groupNamesSize, char **asGroupIds, int groupIdsSize)
{
u32 i = 0;
ncInstance *pInstance = NULL;
/* zeroed out for cleaner-looking checkpoints and strings that are empty unless set */
if ((pInstance = EUCA_ZALLOC(1, sizeof(ncInstance))) == NULL)
return (NULL);
if (sUserData)
euca_strncpy(pInstance->userData, sUserData, CHAR_BUFFER_SIZE * 32);
if (sLaunchIndex)
euca_strncpy(pInstance->launchIndex, sLaunchIndex, CHAR_BUFFER_SIZE);
if (sPlatform)
euca_strncpy(pInstance->platform, sPlatform, CHAR_BUFFER_SIZE);
pInstance->groupNamesSize = groupNamesSize;
if ((asGroupNames != NULL) && (groupNamesSize > 0)) {
for (i = 0; i < groupNamesSize && asGroupNames[i]; i++)
euca_strncpy(pInstance->groupNames[i], asGroupNames[i], CHAR_BUFFER_SIZE);
}
pInstance->groupIdsSize = groupIdsSize;
if ((asGroupIds != NULL) && (groupIdsSize > 0)) {
for (i = 0; i < groupIdsSize && asGroupIds[i]; i++)
euca_strncpy(pInstance->groupIds[i], asGroupIds[i], CHAR_BUFFER_SIZE);
}
if (pNetCfg != NULL)
memcpy(&(pInstance->ncnet), pNetCfg, sizeof(netConfig));
if (sUUID)
euca_strncpy(pInstance->uuid, sUUID, CHAR_BUFFER_SIZE);
if (sInstanceId)
euca_strncpy(pInstance->instanceId, sInstanceId, CHAR_BUFFER_SIZE);
if (sKeyName)
euca_strncpy(pInstance->keyName, sKeyName, CHAR_BUFFER_SIZE * 4);
if (sReservationId)
euca_strncpy(pInstance->reservationId, sReservationId, CHAR_BUFFER_SIZE);
if (sStateName)
euca_strncpy(pInstance->stateName, sStateName, CHAR_BUFFER_SIZE);
if (sUserId)
euca_strncpy(pInstance->userId, sUserId, CHAR_BUFFER_SIZE);
if (sOwnerId)
euca_strncpy(pInstance->ownerId, sOwnerId, CHAR_BUFFER_SIZE);
if (sAccountId)
euca_strncpy(pInstance->accountId, sAccountId, CHAR_BUFFER_SIZE);
if (pVirtMachine)
memcpy(&(pInstance->params), pVirtMachine, sizeof(virtualMachine));
pInstance->stateCode = stateCode;
euca_strncpy(pInstance->bundleTaskStateName, bundling_progress_names[NOT_BUNDLING], CHAR_BUFFER_SIZE);
pInstance->expiryTime = expiryTime;
return (pInstance);
}
//!
//! Creates and initialize an NC stub entry
//!
//! @param[in] endpoint_uri the endpoint URI string
//! @param[in] logfile the log file name string
//! @param[in] homedir the home directory path string
//!
//! @return a pointer to the newly created NC stub structure
//!
scStub *scStubCreate(char *endpoint_uri, char *logfile, char *homedir)
{
char *uri = NULL;
char *p = NULL;
char *node_name = NULL;
scStub *pStub = NULL;
axutil_env_t *env = NULL;
axis2_char_t *client_home;
axis2_stub_t *stub;
if (logfile) {
env = axutil_env_create_all(logfile, AXIS2_LOG_LEVEL_TRACE);
} else {
env = axutil_env_create_all(NULL, 0);
}
if (homedir) {
client_home = (axis2_char_t *) homedir;
} else {
client_home = AXIS2_GETENV("AXIS2C_HOME");
}
if (client_home == NULL) {
LOGERROR("cannot get AXIS2C_HOME");
return NULL;
}
if (endpoint_uri == NULL) {
LOGERROR("empty endpoint_url");
return NULL;
}
uri = endpoint_uri;
// extract node name from the endpoint
p = strstr(uri, "://"); // find "http[s]://..."
if (p == NULL) {
LOGERROR("received invalid URI %s\n", uri);
return NULL;
}
node_name = strdup(p + 3); // copy without the protocol prefix
if (node_name == NULL) {
LOGERROR("is out of memory\n");
return NULL;
}
if ((p = strchr(node_name, ':')) != NULL)
*p = '\0'; // cut off the port
if ((p = strchr(node_name, '/')) != NULL)
*p = '\0'; // if there is no port
//! @todo what if endpoint_uri, home, or env are NULL?
stub = axis2_stub_create_EucalyptusSC(env, client_home, (axis2_char_t *) uri);
if (stub) {
if ((pStub = EUCA_ZALLOC(1, sizeof(scStub))) != NULL) {
pStub->env = env;
pStub->client_home = strdup((char *)client_home);
pStub->endpoint_uri = (axis2_char_t *) strdup(endpoint_uri);
pStub->node_name = (axis2_char_t *) strdup(node_name);
pStub->stub = stub;
if (pStub->client_home == NULL || pStub->endpoint_uri == NULL || pStub->node_name == NULL) {
LOGWARN("out of memory (%s:%s:%d client_home=%s endpoint_uri=%s node_name=%s)", __FILE__, __FUNCTION__, __LINE__,
pStub->client_home, pStub->endpoint_uri, pStub->node_name);
}
} else {
LOGWARN("out of memory for 'st' (%s:%s:%d)\n", __FILE__, __FUNCTION__, __LINE__);
}
} else {
LOGERROR("failed to create a stub for EucalyptusNC service (stub=%p env=%p client_home=%s)\n", stub, env, client_home);
}
EUCA_FREE(node_name);
return (pStub);
}
//!
//! find value of the given param in the eucalyptus.conf,
//! return NULL if the param is commented out
//!
//! @param[in] eucahome the path where Eucalyptus is installed
//! @param[in] param the parameter value we're looking for
//!
//! @return the matching value or NULL
//!
static char *find_conf_value(const char *eucahome, const char *param)
{
int i = 0;
int j = 0;
int quote = 0;
char *pch = NULL;
char conf_path[1024] = "";
char line[1024] = "";
char *value = NULL;
FILE *f_conf = NULL;
if (!eucahome || !param)
return (NULL);
snprintf(conf_path, 1024, EUCALYPTUS_CONF_LOCATION, eucahome);
if ((f_conf = fopen(conf_path, "r")) == NULL) {
return (NULL);
}
while (fgets(line, 1024, f_conf) != NULL) {
if (strstr(line, param) != NULL) { // found the param in the line
if (strchr(line, '#') != NULL) { // the line is commented out (assume # can't appear in the middle)
break;
} else {
pch = strtok(line, "="); // again assume '=' can't appear in the middle of value
pch = strtok(NULL, "=");
if (pch && (strlen(pch) > 0)) {
if ((value = EUCA_ZALLOC(strlen(pch) + 1, 1)) == NULL) {
fclose(f_conf);
return (NULL);
}
snprintf(value, strlen(pch) + 1, "%s", pch);
}
break;
}
}
bzero(line, 1024);
}
// remove "" from the value
if (value) {
quote = 0;
for (i = 0; i < strlen(value); i++) {
if (value[i] == '\"')
quote++;
else
value[i - quote] = value[i];
}
value[strlen(value) - quote] = 0x00;
// remove spaces
i = 0;
while ((value[i] == ' ') || (value[i] == '\t'))
i++;
for (j = i; j < strlen(value); j++)
value[j - i] = value[j];
value[strlen(value) - i] = 0x00;
if (value[strlen(value) - 1] == '\n')
value[strlen(value) - 1] = 0x00;
}
fclose(f_conf);
return (value);
}
//!
//! Creates and initialize an NC stub entry
//!
//! @param[in] endpoint_uri the endpoint URI string
//! @param[in] logfile the log file name string
//! @param[in] homedir the home directory path string
//!
//! @return a pointer to the newly created NC stub structure
//!
ncStub *ncStubCreate(char *endpoint_uri, char *logfile, char *homedir)
{
char *uri = NULL;
char *p = NULL;
char *node_name = NULL;
axutil_env_t *env = NULL;
axis2_char_t *client_home = NULL;
axis2_stub_t *stub = NULL;
ncStub *st = NULL;
if (logfile) {
env = axutil_env_create_all(logfile, AXIS2_LOG_LEVEL_TRACE);
} else {
env = axutil_env_create_all(NULL, 0);
}
if (homedir) {
client_home = (axis2_char_t *) homedir;
} else {
client_home = AXIS2_GETENV("AXIS2C_HOME");
}
if (client_home == NULL) {
LOGERROR("fakeNC: ERROR: cannot get AXIS2C_HOME");
return NULL;
}
if (endpoint_uri == NULL) {
LOGERROR("fakeNC: ERROR: empty endpoint_url");
return NULL;
}
uri = endpoint_uri;
// extract node name from the endpoint
p = strstr(uri, "://"); // find "http[s]://..."
if (p == NULL) {
LOGERROR("fakeNC: ncStubCreate received invalid URI %s\n", uri);
return NULL;
}
node_name = strdup(p + 3); // copy without the protocol prefix
if (node_name == NULL) {
LOGERROR("fakeNC: ncStubCreate is out of memory\n");
return NULL;
}
if ((p = strchr(node_name, ':')) != NULL)
*p = '\0'; // cut off the port
if ((p = strchr(node_name, '/')) != NULL)
*p = '\0'; // if there is no port
LOGDEBUG("fakeNC: DEBUG: requested URI %s\n", uri);
// see if we should redirect to a local broker
if (strstr(uri, "EucalyptusBroker")) {
uri = "http://localhost:8773/services/EucalyptusBroker";
LOGDEBUG("fakeNC: DEBUG: redirecting request to %s\n", uri);
}
//! @todo what if endpoint_uri, home, or env are NULL?
stub = axis2_stub_create_EucalyptusNC(env, client_home, (axis2_char_t *) uri);
if (stub && (st = EUCA_ZALLOC(1, sizeof(ncStub)))) {
st->env = env;
st->client_home = strdup((char *)client_home);
st->endpoint_uri = (axis2_char_t *) strdup(endpoint_uri);
st->node_name = (axis2_char_t *) strdup(node_name);
st->stub = stub;
if (st->client_home == NULL || st->endpoint_uri == NULL) {
LOGWARN("fakeNC: WARNING: out of memory");
}
} else {
LOGWARN("fakeNC: WARNING: out of memory");
}
EUCA_FREE(node_name);
return (st);
}
//!
//! Handles the console output retrieval request.
//!
//! @param[in] nc a pointer to the NC state structure to initialize
//! @param[in] pMeta a pointer to the node controller (NC) metadata structure
//! @param[in] instanceId the instance identifier string (i-XXXXXXXX)
//! @param[out] consoleOutput a pointer to the unallocated string that will contain the output
//!
//! @return EUCA_OK on success or EUCA_ERROR and EUCA_NOT_FOUND_ERROR on failure.
//!
static int doGetConsoleOutput(struct nc_state_t *nc, ncMetadata * pMeta, char *instanceId, char **consoleOutput)
{
int rc = 0;
int fd = 0;
int ret = EUCA_OK;
int readsize = 0;
char *console_output = NULL;
char *console_append = NULL;
char *console_main = NULL;
char console_file[MAX_PATH] = "";
char userId[48] = "";
ncInstance *instance = NULL;
struct stat statbuf = { 0 };
*consoleOutput = NULL;
readsize = 64 * 1024;
// find the instance record
sem_p(inst_sem);
{
if ((instance = find_instance(&global_instances, instanceId)) != NULL) {
snprintf(console_file, 1024, "%s/console.append.log", instance->instancePath);
snprintf(userId, 48, "%s", instance->userId);
}
}
sem_v(inst_sem);
if (!instance) {
logprintfl(EUCAERROR, "[%s] cannot locate instance\n", instanceId);
return (EUCA_NOT_FOUND_ERROR);
}
// read from console.append.log if it exists into dynamically allocated 4K console_append buffer
if ((rc = stat(console_file, &statbuf)) >= 0) {
if (diskutil_ch(console_file, nc->admin_user_id, nc->admin_user_id, 0) != EUCA_OK) {
logprintfl(EUCAERROR, "[%s] failed to change ownership of %s\n", instanceId, console_file);
return (EUCA_ERROR);
}
if ((fd = open(console_file, O_RDONLY)) >= 0) {
if ((console_append = EUCA_ZALLOC(4096, sizeof(char))) != NULL) {
rc = read(fd, console_append, (4096) - 1);
}
close(fd);
}
}
sem_p(inst_sem);
{
snprintf(console_file, MAX_PATH, "%s/console.log", instance->instancePath);
}
sem_v(inst_sem);
// read the last 64K from console.log or the whole file, if smaller, into dynamically allocated 64K console_main buffer
if ((rc = stat(console_file, &statbuf)) >= 0) {
if (diskutil_ch(console_file, nc->admin_user_id, nc->admin_user_id, 0) != EUCA_OK) {
logprintfl(EUCAERROR, "[%s] failed to change ownership of %s\n", instanceId, console_file);
EUCA_FREE(console_append);
return (EUCA_ERROR);
}
if ((fd = open(console_file, O_RDONLY)) >= 0) {
if ((rc = lseek(fd, (off_t) (-1 * readsize), SEEK_END)) < 0) {
if ((rc = lseek(fd, (off_t) 0, SEEK_SET)) < 0) {
logprintfl(EUCAERROR, "[%s] cannot seek to beginning of file\n", instanceId);
if (console_append)
EUCA_FREE(console_append);
close(fd);
return (EUCA_ERROR);
}
}
if ((console_main = EUCA_ZALLOC(readsize, sizeof(char))) != NULL) {
rc = read(fd, console_main, (readsize) - 1);
}
close(fd);
} else {
logprintfl(EUCAERROR, "[%s] cannot open '%s' read-only\n", instanceId, console_file);
}
} else {
logprintfl(EUCAERROR, "[%s] cannot stat console_output file '%s'\n", instanceId, console_file);
}
// concatenate console_append with console_main, base64-encode this, and put into dynamically allocated buffer consoleOutput
ret = EUCA_ERROR;
if ((console_output = EUCA_ZALLOC((readsize) + 4096, sizeof(char))) != NULL) {
if (console_append) {
strncat(console_output, console_append, 4096);
}
if (console_main) {
strncat(console_output, console_main, readsize);
}
*consoleOutput = base64_enc((unsigned char *)console_output, strlen(console_output));
ret = EUCA_OK;
}
EUCA_FREE(console_append);
EUCA_FREE(console_main);
EUCA_FREE(console_output);
return (ret);
}
//!
//!
//!
//! @param[in] log_error
//! @param[in] format
//! @param[in] ...
//!
//! @return
//!
//! @pre
//!
//! @note
//!
static char *execlp_output(boolean log_error, ...)
{
va_list ap;
int ntokens = 0;
char cmd[256] = ""; // for logging, OK if command gets truncated
// run through arguments once to count them
va_start(ap, log_error);
{
char *s;
while ((s = va_arg(ap, char *)) != NULL) {
ntokens++;
}
}
va_end(ap);
if (ntokens < 1) {
LOGERROR("internal error: too few arguments to %s\n", __func__);
return NULL;
}
// allocate an array and run through arguments again, copying them into the array
char **argv = EUCA_ZALLOC(ntokens + 1, sizeof(char *)); // one extra for the terminating NULL
va_start(ap, log_error);
{
for (int i = 0; i < ntokens; i++) {
argv[i] = strdup(va_arg(ap, char *));
// append tokens to 'cmd', strictly for logging purposes
int left_in_cmd = sizeof(cmd) - strlen(cmd);
if (left_in_cmd > 1) // has room for at least one character and '\0'
snprintf(cmd + strlen(cmd), left_in_cmd, "%s%s%s%s", (i > 0) ? (" ") : (""), // add space in front all but the first argument
(i == 0 || argv[i][0] == '-') ? ("") : ("'"), // add quoates around non-flags
argv[i], (i == 0 || argv[i][0] == '-') ? ("") : ("'"));
}
}
va_end(ap);
char *output = NULL;
// set up a pipe for getting stdout and stderror from child process
int filedes[2];
if (pipe(filedes)) {
LOGERROR("failed to create a pipe\n");
goto free;
}
LOGTRACE("executing: %s\n", cmd);
pid_t cpid = fork();
int rc = -1;
if (cpid == -1) {
LOGERROR("failed to fork\n");
close(filedes[0]);
close(filedes[1]);
goto free;
} else if (cpid == 0) { // child
close(filedes[0]);
if (dup2(filedes[1], STDOUT_FILENO) == -1) {
LOGERROR("failed to dup2\n");
exit(-1);
}
if (dup2(filedes[1], STDERR_FILENO) == -1) {
LOGERROR("failed to dup2\n");
exit(-1);
}
exit(execvp(argv[0], argv));
}
// parent reads stdout and stdin from child into a string
close(filedes[1]);
int outsize = OUTPUT_ALLOC_CHUNK; // allocate in chunks of this size
int nextchar = 0; // offset of the next usable char
int bytesread;
output = EUCA_ALLOC(outsize, sizeof(char));
if (output) {
output[0] = '\0'; // return an empty string if there is no output
}
while ((output != NULL) && (bytesread = read(filedes[0], output + nextchar, outsize - nextchar - 1)) > 0) {
nextchar += bytesread;
output[nextchar] = '\0';
if (nextchar + 1 == outsize) {
outsize += OUTPUT_ALLOC_CHUNK;
if (outsize > MAX_OUTPUT_BYTES) {
LOGERROR("internal error: output from command is too long\n");
EUCA_FREE(output);
break;
}
output = EUCA_REALLOC(output, outsize, sizeof(char));
}
}
if (output == NULL) {
LOGERROR("failed to allocate mem for output\n");
}
close(filedes[0]);
{ // wait for the child to reap status
int status;
rc = waitpid(cpid, &status, 0);
if (rc == -1) {
LOGERROR("failed to wait for child process\n");
} else if (WIFEXITED(status)) {
rc = WEXITSTATUS(status);
if (rc) {
LOGERROR("child return non-zero status (%d)\n", rc);
}
} else {
LOGERROR("child process did not terminate normally\n");
rc = -1;
}
}
if (rc) {
// there were problems above
if ((output != NULL) && strstr(cmd, "losetup") && strstr(output, ": No such device or address")) {
rc = 0;
} else {
if (log_error) {
LOGERROR("bad return code from cmd %s\n", cmd);
LOGDEBUG("%s\n", output);
}
EUCA_FREE(output); // will be set to NULL
}
}
free:
for (int i = 0; i < ntokens; i++) {
EUCA_FREE(argv[i]);
}
EUCA_FREE(argv);
return output;
}
