nyx_error_t nyx_device_get_report_rate(nyx_device_handle_t handle,
nyx_report_rate_t *rate_out_ptr)
{
nyx_device_t *d = (nyx_device_t *)handle;
CHECK_DEVICE(d);
nyx_get_report_rate_function_t f = LOOKUP_METHOD(d,
NYX_GET_REPORT_RATE_MODULE_METHOD);
if (f)
{
return f(d, rate_out_ptr);
}
else
{
return NYX_ERROR_NOT_IMPLEMENTED;
}
}
nyx_error_t nyx_device_set_property(nyx_device_handle_t handle,
const char *property_name_in, void *property_value_in_ptr)
{
nyx_device_t *d = (nyx_device_t *)handle;
CHECK_DEVICE(d);
nyx_set_property_function_t f = LOOKUP_METHOD(d,
NYX_SET_PROPERTY_MODULE_METHOD);
if (f)
{
return f(d, property_name_in, property_value_in_ptr);
}
else
{
return NYX_ERROR_NOT_IMPLEMENTED;
}
}
nyx_error_t nyx_device_release_event(nyx_device_handle_t handle,
nyx_event_handle_t event_handle)
{
nyx_device_t *d = (nyx_device_t *)handle;
CHECK_DEVICE(d);
nyx_release_event_function_t f = LOOKUP_METHOD(d,
NYX_RELEASE_EVENT_MODULE_METHOD);
if (f)
{
return f(d, (nyx_event_t *)event_handle);
}
else
{
return NYX_ERROR_NOT_IMPLEMENTED;
}
}
nyx_error_t nyx_device_get_event_source(nyx_device_handle_t handle,
int32_t *source_out_ptr)
{
nyx_device_t *d = (nyx_device_t *)handle;
CHECK_DEVICE(d);
nyx_get_event_source_function_t f = LOOKUP_METHOD(d,
NYX_GET_EVENT_SOURCE_MODULE_METHOD);
if (f)
{
return f(d, source_out_ptr);
}
else
{
return NYX_ERROR_NOT_IMPLEMENTED;
}
}
nyx_error_t nyx_device_get_operating_mode(nyx_device_handle_t handle,
nyx_operating_mode_t *mode_out_ptr)
{
nyx_device_t *d = (nyx_device_t *)handle;
CHECK_DEVICE(d);
nyx_get_operating_mode_function_t f = LOOKUP_METHOD(d,
NYX_GET_OPERATING_MODE_MODULE_METHOD);
if (f)
{
return f(d, mode_out_ptr);
}
else
{
return NYX_ERROR_NOT_IMPLEMENTED;
}
}
nyx_error_t nyx_haptics_cancel_all(nyx_device_handle_t handle)
{
nyx_device_t *d = (nyx_device_t *)handle;
CHECK_DEVICE(d);
CHECK_DEVICE_TYPE(d, NYX_DEVICE_HAPTICS);
nyx_haptics_cancel_all_function_t f_ptr = LOOKUP_METHOD(d,
NYX_HAPTICS_CANCEL_ALL_MODULE_METHOD);
if (f_ptr)
{
return f_ptr(d);
}
else
{
return NYX_ERROR_NOT_IMPLEMENTED;
}
}
nyx_error_t nyx_device_close(nyx_device_handle_t handle)
{
nyx_device_t* d = (nyx_device_t*)handle;
CHECK_DEVICE(d);
/*
* we need to cache method hash table as it might be
* used during the close, we will destroy it after
* a call to close.
*/
GHashTable* method_hash_table = (GHashTable*)d->method_hash_table;
char* name = d->name;
char* desc = d->description;
/*
* Don't know if necessary but since we are deallocating
* the device structure during the call to close method
* let's first cache the pointer to close method.
*/
void* module_ptr = d->module_ptr;
nyx_close_function_t close_ptr = d->close_ptr;
nyx_error_t error = close_ptr(d);
/*
* let's destroy the method hash table.
*/
if (method_hash_table)
g_hash_table_destroy (method_hash_table);
if (name)
free (name);
if (desc)
free (desc);
/*
* We are done so, we can close the module.
*/
dlclose(module_ptr);
return error;
}
//------------------------------------------------------------------------------
void MobiCoreDriverDaemon::processMapBulkBuf(Connection *connection)
{
MC_DRV_CMD_MAP_BULK_BUF_struct cmd;
RECV_PAYLOAD_FROM_CLIENT(connection, &cmd);
// Device required
MobiCoreDevice *device = (MobiCoreDevice *) (connection->connectionData);
CHECK_DEVICE(device, connection);
if (!device->lockWsmL2(cmd.handle)) {
LOG_E("Couldn't lock the buffer!");
writeResult(connection, MC_DRV_ERR_DAEMON_WSM_HANDLE_NOT_FOUND);
return;
}
uint32_t secureVirtualAdr = (uint32_t)NULL;
uint64_t pAddrL2 = device->findWsmL2(cmd.handle, connection->socketDescriptor);
if (pAddrL2 == 0) {
LOG_E("Failed to resolve WSM with handle %u", cmd.handle);
writeResult(connection, MC_DRV_ERR_DAEMON_WSM_HANDLE_NOT_FOUND);
return;
}
// Map bulk memory to secure world
mcResult_t mcResult = device->mapBulk(connection, cmd.sessionId, cmd.handle, pAddrL2,
cmd.offsetPayload, cmd.lenBulkMem, &secureVirtualAdr);
if (mcResult != MC_DRV_OK) {
writeResult(connection, mcResult);
return;
}
mcDrvRspMapBulkMem_t rsp;
rsp.header.responseId = MC_DRV_OK;
rsp.payload.sessionId = cmd.sessionId;
rsp.payload.secureVirtualAdr = secureVirtualAdr;
connection->writeData(&rsp, sizeof(mcDrvRspMapBulkMem_t));
}
nyx_error_t nyx_device_close(nyx_device_handle_t handle)
{
nyx_device_t *d = (nyx_device_t *)handle;
CHECK_DEVICE(d);
/*
* cleanup device local members after call to close because members
* might be used during the close.
*
* need to setup copy from device because call to close will deallocate
* device (d) structure (cant access device members through pointer d)
*/
nyx_device_t cache;
memcpy(&cache, d, sizeof(cache));
nyx_error_t error = cache.close_ptr(d);
/*
* do rest of the cleanup using cache
*/
if (NULL != cache.method_hash_table)
{
g_hash_table_destroy((GHashTable *)cache.method_hash_table);
}
g_free(cache.name);
g_free(cache.description);
/*
* We are done so, we can close the module.
*/
dlclose(cache.module_ptr);
return error;
}
//------------------------------------------------------------------------------
void MobiCoreDriverDaemon::processUnmapBulkBuf(Connection *connection)
{
MC_DRV_CMD_UNMAP_BULK_BUF_struct cmd;
RECV_PAYLOAD_FROM_CLIENT(connection, &cmd)
// Device required
MobiCoreDevice *device = (MobiCoreDevice *) (connection->connectionData);
CHECK_DEVICE(device, connection);
// Unmap bulk memory from secure world
uint32_t mcResult = device->unmapBulk(connection, cmd.sessionId, cmd.handle,
cmd.secureVirtualAdr, cmd.lenBulkMem);
if (mcResult != MC_DRV_OK) {
LOG_V("MCP UNMAP returned code %d", mcResult);
writeResult(connection, mcResult);
return;
}
// TODO-2012-09-06-haenellu: Think about not ignoring the error case.
device->unlockWsmL2(cmd.handle);
writeResult(connection, MC_DRV_OK);
}
//------------------------------------------------------------------------------
void MobiCoreDriverDaemon::processOpenTrustlet(Connection *connection)
{
MC_DRV_CMD_OPEN_TRUSTLET_struct cmdOpenTrustlet;
RECV_PAYLOAD_FROM_CLIENT(connection, &cmdOpenTrustlet);
// Device required
MobiCoreDevice *device = (MobiCoreDevice *) (connection->connectionData);
CHECK_DEVICE(device, connection);
uint32_t total_len, rlen, len = cmdOpenTrustlet.trustlet_len;
uint8_t *payload = (uint8_t *)malloc(len);
uint8_t *p = payload;
if (payload == NULL) {
LOG_E("failed to allocate payload buffer");
writeResult(connection, MC_DRV_ERR_DAEMON_SOCKET);
return;
}
total_len = 0;
while (total_len < len) {
rlen = connection->readData(p, len - total_len);
if ((int32_t)rlen < 0) {
LOG_E("reading from Client failed");
/* it is questionable, if writing to broken socket has any effect here. */
writeResult(connection, MC_DRV_ERR_DAEMON_SOCKET);
free(payload);
return;
}
total_len += rlen;
p += rlen;
}
// Get service blob from registry
regObject_t *regObj = mcRegistryMemGetServiceBlob(cmdOpenTrustlet.spid, (uint8_t *)payload, len);
// Free the payload object no matter what
free(payload);
if (regObj == NULL) {
writeResult(connection, MC_DRV_ERR_TRUSTLET_NOT_FOUND);
return;
}
if (regObj->len == 0) {
free(regObj);
writeResult(connection, MC_DRV_ERR_TRUSTLET_NOT_FOUND);
return;
}
LOG_I(" Sharing Service loaded at %p with Secure World", (addr_t)(regObj->value));
CWsm_ptr pWsm = device->registerWsmL2((addr_t)(regObj->value), regObj->len, 0);
if (pWsm == NULL) {
free(regObj);
LOG_E("allocating WSM for Trustlet failed");
writeResult(connection, MC_DRV_ERR_DAEMON_KMOD_ERROR);
return;
}
// Initialize information data of open session command
loadDataOpenSession_t loadDataOpenSession;
loadDataOpenSession.baseAddr = pWsm->physAddr;
loadDataOpenSession.offs = ((uintptr_t) regObj->value) & 0xFFF;
loadDataOpenSession.len = regObj->len;
loadDataOpenSession.tlHeader = (mclfHeader_ptr) (regObj->value + regObj->tlStartOffset);
mcDrvRspOpenSession_t rspOpenSession;
mcResult_t ret = device->openSession(
connection,
&loadDataOpenSession,
cmdOpenTrustlet.handle,
cmdOpenTrustlet.len,
cmdOpenTrustlet.tci,
&rspOpenSession.payload);
// Unregister physical memory from kernel module.
LOG_I(" Service buffer was copied to Secure world and processed. Stop sharing of buffer.");
// This will also destroy the WSM object.
if (!device->unregisterWsmL2(pWsm)) {
free(regObj);
// TODO-2012-07-02-haenellu: Can this ever happen? And if so, we should assert(), also TL might still be running.
writeResult(connection, MC_DRV_ERR_DAEMON_KMOD_ERROR);
return;
}
// Free memory occupied by Trustlet data
free(regObj);
if (ret != MC_DRV_OK) {
LOG_E("Service could not be loaded.");
writeResult(connection, ret);
} else {
rspOpenSession.header.responseId = ret;
connection->writeData(
&rspOpenSession,
sizeof(rspOpenSession));
}
}
//------------------------------------------------------------------------------
void MobiCoreDriverDaemon::processOpenSession(Connection *connection, bool isGpUuid)
{
MC_DRV_CMD_OPEN_SESSION_struct cmdOpenSession;
RECV_PAYLOAD_FROM_CLIENT(connection, &cmdOpenSession);
// Device required
MobiCoreDevice *device = (MobiCoreDevice *) (connection->connectionData);
CHECK_DEVICE(device, connection);
// Get service blob from registry
regObject_t *regObj = mcRegistryGetServiceBlob(&cmdOpenSession.uuid, isGpUuid);
if (NULL == regObj) {
writeResult(connection, MC_DRV_ERR_TRUSTLET_NOT_FOUND);
return;
}
if (regObj->len == 0) {
free(regObj);
writeResult(connection, MC_DRV_ERR_TRUSTLET_NOT_FOUND);
return;
}
LOG_I(" Sharing Service loaded at %p with Secure World", (addr_t)(regObj->value));
CWsm_ptr pWsm = device->registerWsmL2((addr_t)(regObj->value), regObj->len, 0);
if (pWsm == NULL) {
// Free memory occupied by Trustlet data
free(regObj);
LOG_E("allocating WSM for Trustlet failed");
writeResult(connection, MC_DRV_ERR_DAEMON_KMOD_ERROR);
return;
}
// Initialize information data of open session command
loadDataOpenSession_t loadDataOpenSession;
loadDataOpenSession.baseAddr = pWsm->physAddr;
loadDataOpenSession.offs = ((uintptr_t) regObj->value) & 0xFFF;
loadDataOpenSession.len = regObj->len;
loadDataOpenSession.tlHeader = (mclfHeader_ptr) (regObj->value + regObj->tlStartOffset);
mcDrvRspOpenSession_t rspOpenSession;
mcResult_t ret = device->openSession(
connection,
&loadDataOpenSession,
cmdOpenSession.handle,
cmdOpenSession.len,
cmdOpenSession.tci,
&rspOpenSession.payload);
// Unregister physical memory from kernel module.
LOG_I(" Service buffer was copied to Secure world and processed. Stop sharing of buffer.");
// This will also destroy the WSM object.
if (!device->unregisterWsmL2(pWsm)) {
// TODO-2012-07-02-haenellu: Can this ever happen? And if so, we should assert(), also TL might still be running.
free(regObj);
writeResult(connection, MC_DRV_ERR_DAEMON_KMOD_ERROR);
return;
}
// Free memory occupied by Trustlet data
free(regObj);
if (ret != MC_DRV_OK) {
LOG_E("Service could not be loaded.");
writeResult(connection, ret);
} else {
rspOpenSession.header.responseId = ret;
connection->writeData(
&rspOpenSession,
sizeof(rspOpenSession));
}
}