cc_int32 ccs_callback_reply_to_client (ccs_callback_t io_callback,
k5_ipc_stream in_stream)
{
cc_int32 err = ccNoError;
if (!io_callback) { err = cci_check_error (ccErrBadParam); }
if (!err) {
if (io_callback->pending) {
cci_debug_printf ("%s: callback %p replying to client.", __FUNCTION__, io_callback);
err = ccs_server_send_reply (io_callback->reply_pipe, err, in_stream);
if (err) {
cci_debug_printf ("WARNING %s() called on a lock belonging to a dead client!",
__FUNCTION__);
}
io_callback->pending = 0;
} else {
cci_debug_printf ("WARNING %s() called on non-pending callback!",
__FUNCTION__);
}
}
return cci_check_error (err);
}
static cc_int32 ccs_ccache_wait_for_change (ccs_pipe_t in_client_pipe,
ccs_pipe_t in_reply_pipe,
ccs_ccache_t io_ccache,
ccs_cache_collection_t io_cache_collection,
k5_ipc_stream in_request_data,
k5_ipc_stream io_reply_data,
cc_uint32 *out_will_block)
{
cc_int32 err = ccNoError;
cc_time_t last_wait_for_change_time = 0;
cc_uint32 will_block = 0;
if (!ccs_pipe_valid (in_client_pipe)) { err = cci_check_error (ccErrBadParam); }
if (!ccs_pipe_valid (in_reply_pipe )) { err = cci_check_error (ccErrBadParam); }
if (!io_ccache ) { err = cci_check_error (ccErrBadParam); }
if (!io_cache_collection ) { err = cci_check_error (ccErrBadParam); }
if (!in_request_data ) { err = cci_check_error (ccErrBadParam); }
if (!out_will_block ) { err = cci_check_error (ccErrBadParam); }
if (!err) {
err = krb5int_ipc_stream_read_time (in_request_data, &last_wait_for_change_time);
}
if (!err) {
if (last_wait_for_change_time < io_ccache->last_changed_time) {
cci_debug_printf ("%s returning immediately", __FUNCTION__);
err = krb5int_ipc_stream_write_time (io_reply_data, io_ccache->last_changed_time);
} else {
ccs_callback_t callback = NULL;
err = ccs_callback_new (&callback,
ccErrInvalidCCache,
in_client_pipe,
in_reply_pipe,
(ccs_callback_owner_t) io_ccache,
ccs_ccache_invalidate_change_callback);
if (!err) {
err = ccs_callback_array_insert (io_ccache->change_callbacks, callback,
ccs_callback_array_count (io_ccache->change_callbacks));
if (!err) { callback = NULL; /* take ownership */ }
cci_debug_printf ("%s blocking", __FUNCTION__);
will_block = 1;
}
ccs_callback_release (callback);
}
}
if (!err) {
*out_will_block = will_block;
}
return cci_check_error (err);
}
WorkList::~WorkList() {
// Delete any WorkItems in the queue:
WorkItem* item;
cci_debug_printf("%s", __FUNCTION__);
char buf[2048];
char* pbuf = (char*)buf;
while (remove(&item)) {
cci_debug_printf("WorkList::~WorkList() deleting %s", item->print(pbuf));
delete item;
}
DeleteCriticalSection(&cs);
}
cc_int32 ccs_lock_state_remove (ccs_lock_state_t io_lock_state,
ccs_pipe_t in_client_pipe)
{
cc_int32 err = ccNoError;
cc_uint32 found_lock = 0;
if (!io_lock_state ) {
err = cci_check_error (ccErrBadParam);
}
if (!ccs_pipe_valid (in_client_pipe)) {
err = cci_check_error (ccErrBadParam);
}
if (!err) {
cc_uint64 i;
/* Remove all locks for this client.
* There should only be one so warn if there are multiple */
for (i = 0; !err && i < io_lock_state->first_pending_lock_index; i++) {
ccs_lock_t lock = ccs_lock_array_object_at_index (io_lock_state->locks, i);
cc_uint32 is_for_client = 0;
err = ccs_lock_is_for_client_pipe (lock, in_client_pipe, &is_for_client);
if (!err && is_for_client) {
if (found_lock) {
cci_debug_printf ("WARNING %s: Found multiple locks for client.",
__FUNCTION__);
}
found_lock = 1;
cci_debug_printf ("%s: Removing lock %p at index %d.", __FUNCTION__, lock, (int) i);
err = ccs_lock_status_remove_lock (io_lock_state, i);
if (!err) {
i--; /* We removed one so back up an index */
}
}
}
}
if (!err && !found_lock) {
err = cci_check_error (io_lock_state->no_lock_err);
}
if (!err) {
err = ccs_lock_status_try_to_grant_pending_locks (io_lock_state);
}
return cci_check_error (err);
}
cci_array_object_t cci_array_object_at_index (cci_array_t io_array,
cc_uint64 in_position)
{
if (io_array && in_position < io_array->count) {
return io_array->objects[in_position];
} else {
if (!io_array) {
cci_debug_printf ("%s() got NULL array", __FUNCTION__);
} else {
cci_debug_printf ("%s() got bad index %lld (count = %lld)", __FUNCTION__,
in_position, io_array->count);
}
return NULL;
}
}
cc_int32 ccapi_ccache_iterator_release (cc_ccache_iterator_t io_ccache_iterator)
{
cc_int32 err = ccNoError;
cci_ccache_iterator_t ccache_iterator = (cci_ccache_iterator_t) io_ccache_iterator;
if (!io_ccache_iterator) { err = ccErrBadParam; }
if (!err) {
cc_uint32 initialized = 0;
err = cci_identifier_is_initialized (ccache_iterator->identifier,
&initialized);
if (!err && initialized) {
err = cci_ipc_send (cci_ccache_iterator_release_msg_id,
ccache_iterator->identifier,
NULL,
NULL);
if (err) {
cci_debug_printf ("%s: cci_ipc_send failed with error %d",
__FUNCTION__, err);
err = ccNoError;
}
}
}
if (!err) {
free ((char *) ccache_iterator->functions);
cci_identifier_release (ccache_iterator->identifier);
free (ccache_iterator->saved_ccache_name);
free (ccache_iterator);
}
return err;
}
HANDLE createThreadEvent(char* uuid, char* suffix) {
LPSTR event_name = NULL;
HANDLE hEvent = NULL;
PSECURITY_ATTRIBUTES psa = 0; // Everything having to do with
SECURITY_ATTRIBUTES sa = { 0 }; // sa, psa, security is copied
DWORD status = 0; // from the previous implementation.
psa = isNT() ? &sa : 0;
if (isNT()) {
sa.nLength = sizeof(sa);
status = alloc_own_security_descriptor_NT(&sa.lpSecurityDescriptor);
cci_check_error(status);
}
if (!status) {
event_name = allocEventName(uuid, suffix);
if (!event_name) status = cci_check_error(ccErrNoMem);
}
#if 0
cci_debug_printf("%s event_name:%s", __FUNCTION__, event_name);
#endif
if (!status) {
hEvent = CreateEvent(psa, FALSE, FALSE, event_name);
if (!hEvent) status = cci_check_error(GetLastError());
}
if (!status) ResetEvent(hEvent);
if (event_name) free(event_name);
if (isNT()) free(sa.lpSecurityDescriptor);
return hEvent;
}
BOOL isNT() {
OSVERSIONINFO osvi;
DWORD status = 0;
BOOL bSupportedVersion = FALSE;
BOOL bIsNT = FALSE;
memset(&osvi, 0, sizeof(osvi));
osvi.dwOSVersionInfoSize = sizeof(OSVERSIONINFO);
status = !GetVersionEx(&osvi); // Returns a boolean. Invert to 0 is OK.
if (!status) {
switch(osvi.dwPlatformId) {
case VER_PLATFORM_WIN32_WINDOWS:
bIsNT = FALSE;
bSupportedVersion = TRUE;
break;
case VER_PLATFORM_WIN32_NT:
bIsNT = TRUE;
bSupportedVersion = TRUE;
break;
case VER_PLATFORM_WIN32s:
default:
bIsNT = FALSE;
break;
}
if (!bSupportedVersion) {
cci_debug_printf("%s Running on an unsupported version of Windows", __FUNCTION__);
status = 1;
}
}
return (!status && bIsNT && bSupportedVersion);
}
void ccs_rpc_request(
const long rpcmsg, /* Message type */
const char tspHandle[], /* Client's tspdata* */
const char* pszUUID, /* Where client will listen for the reply */
const long lenRequest, /* Length of buffer */
const char pbRequest[], /* Data buffer */
const long serverStartTime, /* Which server session we're talking to */
long* return_status ) { /* Return code */
cc_int32 status = 0;
k5_ipc_stream stream;
DWORD* p = (DWORD*)(tspHandle);
WIN_PIPE* pipe = NULL;
#if 0
cci_debug_printf("%s rpcmsg:%d; UUID:<%s> SST:<%s>", __FUNCTION__, rpcmsg, pszUUID, serverStartTime);
#endif
status = (rpcmsg != CCMSG_REQUEST) && (rpcmsg != CCMSG_PING);
if (!status) {
status = k5_ipc_stream_new (&stream); /* Create a stream for the request data */
}
if (!status) { /* Put the data into the stream */
status = k5_ipc_stream_write (stream, pbRequest, lenRequest);
}
pipe = ccs_win_pipe_new(pszUUID, *p);
worklist_add(rpcmsg, pipe, stream, serverStartTime);
*return_status = status;
}
// 'Authentication' is client setting a value in a file and the server
// returning that value plus one.
CC_UINT32 ccs_authenticate(const CC_CHAR* name) {
HANDLE hMap = 0;
PDWORD pvalue = 0;
CC_UINT32 result = 0;
DWORD status = 0;
#if 0
cci_debug_printf("%s ( %s )", __FUNCTION__, name);
#endif
hMap = OpenFileMapping(FILE_MAP_ALL_ACCESS, FALSE, (LPSTR)name);
status = !hMap;
if (!status) {
pvalue = (PDWORD)MapViewOfFile(hMap, FILE_MAP_WRITE, 0, 0, 0);
status = !pvalue;
}
if (!status) {
*pvalue += 1;
result = *pvalue;
}
if (pvalue) {
UnmapViewOfFile(pvalue);
}
if (hMap) CloseHandle(hMap);
return result;
}
struct ccs_win_pipe_t* ccs_win_pipe_new (const char* uuid, const HANDLE h) {
cc_int32 err = ccNoError;
struct ccs_win_pipe_t* out_pipe = NULL;
char* uuidCopy = NULL;
if (!err) {
if (!uuid) {err = cci_check_error(ccErrBadParam);}
}
if (!err) {
uuidCopy = (char*)malloc(1+strlen(uuid));
if (!uuidCopy) {err = cci_check_error(ccErrBadParam);}
strcpy(uuidCopy, uuid);
}
if (!err) {
out_pipe = (struct ccs_win_pipe_t*)malloc(sizeof(struct ccs_win_pipe_t));
if (!out_pipe) {err = cci_check_error(ccErrBadParam);}
out_pipe->uuid = uuidCopy;
out_pipe->clientHandle = h;
}
#if 0
cci_debug_printf("0x%X = %s(%s, 0x%X)", out_pipe, __FUNCTION__, uuid, h);
#endif
return out_pipe;
}
cc_int32 cci_context_change_time_update (cci_identifier_t in_identifier,
cc_time_t in_new_change_time)
{
cc_int32 err = ccNoError;
cc_int32 lock_err = err = k5_mutex_lock (&g_change_time_mutex);
if (!err) {
if (!in_identifier) { err = cci_check_error (err); }
}
if (!err) {
if (g_change_time < in_new_change_time) {
/* Only update if it increases the time. May be a different server. */
g_change_time = in_new_change_time;
cci_debug_printf ("%s: setting change time to %d",
__FUNCTION__, in_new_change_time);
}
}
if (!err) {
err = cci_context_change_time_update_identifier (in_identifier,
NULL, NULL, NULL);
}
if (!lock_err) {
k5_mutex_unlock (&g_change_time_mutex);
}
return err;
}
static cc_int32 ccs_ccache_invalidate_change_callback (ccs_callback_owner_t io_ccache,
ccs_callback_t in_callback)
{
cc_int32 err = ccNoError;
if (!io_ccache ) { err = cci_check_error (ccErrBadParam); }
if (!in_callback) { err = cci_check_error (ccErrBadParam); }
if (!err) {
/* Remove callback */
ccs_ccache_t ccache = (ccs_ccache_t) io_ccache;
cc_uint64 i;
cc_uint64 count = ccs_callback_array_count (ccache->change_callbacks);
for (i = 0; !err && i < count; i++) {
ccs_callback_t callback = ccs_callback_array_object_at_index (ccache->change_callbacks, i);
if (callback == in_callback) {
cci_debug_printf ("%s: Removing callback reference %p.", __FUNCTION__, callback);
err = ccs_callback_array_remove (ccache->change_callbacks, i);
break;
}
}
}
return cci_check_error (err);
}
cc_int32 ccs_ccache_changed (ccs_ccache_t io_ccache,
ccs_cache_collection_t io_cache_collection)
{
cc_int32 err = ccNoError;
k5_ipc_stream reply_data = NULL;
if (!io_ccache ) { err = cci_check_error (ccErrBadParam); }
if (!io_cache_collection) { err = cci_check_error (ccErrBadParam); }
if (!err) {
cc_time_t now = time (NULL);
if (io_ccache->last_changed_time < now) {
io_ccache->last_changed_time = now;
} else {
io_ccache->last_changed_time++;
}
}
if (!err) {
err = ccs_cache_collection_changed (io_cache_collection);
}
if (!err) {
err = krb5int_ipc_stream_new (&reply_data);
}
if (!err) {
err = krb5int_ipc_stream_write_time (reply_data, io_ccache->last_changed_time);
}
if (!err) {
/* Loop over callbacks sending messages to them */
cc_uint64 i;
cc_uint64 count = ccs_callback_array_count (io_ccache->change_callbacks);
for (i = 0; !err && i < count; i++) {
ccs_callback_t callback = ccs_callback_array_object_at_index (io_ccache->change_callbacks, i);
err = ccs_callback_reply_to_client (callback, reply_data);
if (!err) {
cci_debug_printf ("%s: Removing callback reference %p.", __FUNCTION__, callback);
err = ccs_callback_array_remove (io_ccache->change_callbacks, i);
break;
}
}
}
if (!err) {
err = ccs_os_notify_ccache_changed (io_cache_collection,
io_ccache->name);
}
krb5int_ipc_stream_release (reply_data);
return cci_check_error (err);
}
void ccs_rpc_connect(
const long rpcmsg, /* Message type */
const char tspHandle[], /* Client's tspdata* */
const char* pszUUID, /* Data buffer */
long* return_status ) { /* Return code */
DWORD* p = (DWORD*)(tspHandle);
WIN_PIPE* pipe = ccs_win_pipe_new(pszUUID, *p);
#if 0
cci_debug_printf("%s; rpcmsg:%d; UUID: <%s>", __FUNCTION__, rpcmsg, pszUUID);
#endif
worklist_add( rpcmsg,
pipe,
NULL, /* No payload with connect request */
(const time_t)0 ); /* No server session number with connect request */
}
cc_int32 cci_context_change_time_sync (cci_identifier_t in_new_identifier)
{
cc_int32 err = ccNoError;
cc_int32 lock_err = err = k5_mutex_lock (&g_change_time_mutex);
cc_uint32 server_ids_match = 0;
cc_uint32 server_was_running = 0;
cc_uint32 server_is_running = 0;
if (!err) {
if (!in_new_identifier) { err = cci_check_error (err); }
}
if (!err) {
err = cci_context_change_time_update_identifier (in_new_identifier,
&server_ids_match,
&server_was_running,
&server_is_running);
}
if (!err && !server_ids_match) {
/* Increment the change time so callers re-read */
g_change_time_offset++;
/* If the server died, absorb the offset */
if (server_was_running && !server_is_running) {
cc_time_t now = time (NULL);
g_change_time += g_change_time_offset;
g_change_time_offset = 0;
/* Make sure the change time increases, ideally with the current time */
g_change_time = (g_change_time < now) ? now : g_change_time;
}
cci_debug_printf ("%s noticed server changed ("
"server_was_running = %d; server_is_running = %d; "
"g_change_time = %d; g_change_time_offset = %d",
__FUNCTION__, server_was_running, server_is_running,
g_change_time, g_change_time_offset);
}
if (!lock_err) {
k5_mutex_unlock (&g_change_time_mutex);
}
return err;
}
cc_int32 ccs_callback_invalidate (ccs_callback_t io_callback)
{
cc_int32 err = ccNoError;
if (!io_callback) { err = cci_check_error (ccErrBadParam); }
if (!err) {
io_callback->pending = 0; /* client is dead, don't try to talk to it */
if (io_callback->owner_invalidate) {
err = io_callback->owner_invalidate (io_callback->owner, io_callback);
} else {
cci_debug_printf ("WARNING %s() unable to notify callback owner!",
__FUNCTION__);
}
}
return cci_check_error (err);
}
HANDLE openThreadEvent(char* uuid, char* suffix) {
LPSTR event_name = NULL;
HANDLE hEvent = NULL;
DWORD status = 0;
event_name = allocEventName(uuid, suffix);
if (!event_name) status = cci_check_error(ccErrNoMem);
#if 0
cci_debug_printf("%s event_name:%s", __FUNCTION__, event_name);
#endif
if (!status) {
hEvent = OpenEvent(EVENT_MODIFY_STATE, FALSE, event_name);
if (!hEvent) status = cci_check_error(GetLastError());
}
if (event_name) free(event_name);
return hEvent;
}
cc_int32 ccs_list_iterator_release (ccs_list_iterator_t io_list_iterator)
{
cc_int32 err = ccNoError;
if (!err && io_list_iterator) {
cc_uint64 i = 0;
if (ccs_list_find_iterator_index (io_list_iterator->list,
io_list_iterator->identifier,
&i) == ccNoError) {
/* cci_array_remove will call ccs_list_iterator_object_release */
err = cci_array_remove (io_list_iterator->list->iterators, i);
} else {
cci_debug_printf ("Warning: iterator not in iterator list!");
}
}
return err;
}
cc_int32 ccs_lock_state_add (ccs_lock_state_t io_lock_state,
ccs_pipe_t in_client_pipe,
ccs_pipe_t in_reply_pipe,
cc_uint32 in_lock_type,
cc_uint32 in_block,
cc_uint32 *out_will_send_reply)
{
cc_int32 err = ccNoError;
cc_uint32 can_grant_lock_now = 0;
if (!io_lock_state ) {
err = cci_check_error (ccErrBadParam);
}
if (!ccs_pipe_valid (in_client_pipe)) {
err = cci_check_error (ccErrBadParam);
}
if (!ccs_pipe_valid (in_reply_pipe) ) {
err = cci_check_error (ccErrBadParam);
}
if (!out_will_send_reply ) {
err = cci_check_error (ccErrBadParam);
}
if (!err) {
/* Sanity check: if there are any pending locks for this client
* the client must have timed out waiting for our reply. Remove any
* existing pending locks for the client. */
cc_uint64 i;
for (i = io_lock_state->first_pending_lock_index; !err && i < ccs_lock_array_count (io_lock_state->locks); i++) {
ccs_lock_t lock = ccs_lock_array_object_at_index (io_lock_state->locks, i);
cc_uint32 has_pending_lock_for_client = 0;
err = ccs_lock_is_for_client_pipe (lock, in_client_pipe, &has_pending_lock_for_client);
if (!err && has_pending_lock_for_client) {
cci_debug_printf ("WARNING %s: Removing unexpected pending lock %p at index %d.",
__FUNCTION__, lock, (int) i);
err = ccs_lock_status_remove_lock (io_lock_state, i);
if (!err) {
i--; /* We removed one so back up an index */
}
}
}
}
if (!err) {
err = ccs_lock_state_check_pending_lock (io_lock_state, in_client_pipe,
in_lock_type, &can_grant_lock_now);
}
if (!err) {
if (!can_grant_lock_now && (in_block == cc_lock_noblock)) {
err = cci_check_error (io_lock_state->pending_lock_err);
} else {
cc_uint64 new_lock_index = 0;
err = ccs_lock_status_add_pending_lock (io_lock_state,
in_client_pipe,
in_reply_pipe,
in_lock_type,
&new_lock_index);
if (!err && can_grant_lock_now) {
err = ccs_lock_status_grant_lock (io_lock_state, new_lock_index);
if (!err && (in_lock_type == cc_lock_downgrade)) {
/* downgrades can allow us to grant other locks */
err = ccs_lock_status_try_to_grant_pending_locks (io_lock_state);
}
}
}
}
if (!err) {
/* ccs_lock_state_add sends its replies via callback so caller shouldn't */
*out_will_send_reply = 1;
}
return cci_check_error (err);
}
static cc_int32 ccs_lock_status_grant_lock (ccs_lock_state_t io_lock_state,
cc_uint64 in_pending_lock_index)
{
cc_int32 err = ccNoError;
ccs_lock_t pending_lock = NULL;
cc_uint32 type = 0;
if (!io_lock_state) {
err = cci_check_error (ccErrBadParam);
}
if (!err) {
pending_lock = ccs_lock_array_object_at_index (io_lock_state->locks,
in_pending_lock_index);
if (!pending_lock || in_pending_lock_index < io_lock_state->first_pending_lock_index) {
err = cci_check_error (ccErrBadParam);
}
}
if (!err) {
err = ccs_lock_type (pending_lock, &type);
}
if (!err && (type == cc_lock_upgrade || type == cc_lock_downgrade)) {
/* lock upgrades or downgrades. Find the old lock and remove it. */
ccs_pipe_t pending_client_pipe = CCS_PIPE_NULL;
err = ccs_lock_client_pipe (pending_lock, &pending_client_pipe);
if (!err) {
cc_uint64 i;
for (i = 0; !err && i < io_lock_state->first_pending_lock_index; i++) {
ccs_lock_t lock = ccs_lock_array_object_at_index (io_lock_state->locks, i);
cc_uint32 is_lock_for_client = 0;
err = ccs_lock_is_for_client_pipe (lock, pending_client_pipe, &is_lock_for_client);
if (!err && is_lock_for_client) {
cci_debug_printf ("%s: Removing old lock %p at index %d to replace with pending lock %p.",
__FUNCTION__, lock, (int) i, pending_lock);
err = ccs_lock_status_remove_lock (io_lock_state, i);
if (!err) {
i--;
in_pending_lock_index--; /* We removed one so back up an index */
}
break;
}
}
}
}
if (!err) {
cc_uint64 new_lock_index = 0;
err = ccs_lock_array_move (io_lock_state->locks,
in_pending_lock_index,
io_lock_state->first_pending_lock_index,
&new_lock_index);
if (!err) {
io_lock_state->first_pending_lock_index++;
}
}
if (!err) {
err = ccs_lock_grant_lock (pending_lock);
}
return cci_check_error (err);
}
cc_int32 ccs_ccache_new (ccs_ccache_t *out_ccache,
cc_uint32 in_creds_version,
const char *in_name,
const char *in_principal,
ccs_ccache_list_t io_ccache_list)
{
cc_int32 err = ccNoError;
ccs_ccache_t ccache = NULL;
if (!out_ccache ) { err = cci_check_error (ccErrBadParam); }
if (!in_name ) { err = cci_check_error (ccErrBadParam); }
if (!in_principal) { err = cci_check_error (ccErrBadParam); }
if (!err) {
ccache = malloc (sizeof (*ccache));
if (ccache) {
*ccache = ccs_ccache_initializer;
} else {
err = cci_check_error (ccErrNoMem);
}
}
if (!err) {
err = ccs_server_new_identifier (&ccache->identifier);
}
if (!err) {
err = ccs_lock_state_new (&ccache->lock_state,
ccErrInvalidCCache,
ccErrCCacheLocked,
ccErrCCacheUnlocked);
}
if (!err) {
ccache->name = strdup (in_name);
if (!ccache->name) { err = cci_check_error (ccErrNoMem); }
}
if (!err) {
ccache->creds_version = in_creds_version;
if (ccache->creds_version == cc_credentials_v5) {
ccache->v5_principal = strdup (in_principal);
if (!ccache->v5_principal) { err = cci_check_error (ccErrNoMem); }
} else {
err = cci_check_error (ccErrBadCredentialsVersion);
}
}
if (!err) {
err = ccs_credentials_list_new (&ccache->credentials);
}
if (!err) {
err = ccs_callback_array_new (&ccache->change_callbacks);
}
if (!err) {
cc_uint64 now = time (NULL);
cc_uint64 count = 0;
err = ccs_ccache_list_count (io_ccache_list, &count);
if (!err) {
/* first cache is default */
ccache->last_default_time = (count == 0) ? now : 0;
cci_debug_printf ("%s ccache->last_default_time is %d.",
__FUNCTION__, ccache->last_default_time);
ccache->last_changed_time = now;
}
}
if (!err) {
/* Add self to the list of ccaches */
err = ccs_ccache_list_add (io_ccache_list, ccache);
}
if (!err) {
*out_ccache = ccache;
ccache = NULL;
}
ccs_ccache_release (ccache);
return cci_check_error (err);
}