Function SysEndpointCall

Kernel/src/arch/x86_64/syscalls.cpp:2474–2496

//////////////////////// \brief SysEndpointCall (endpoint, id, data, rID, rData, size, timeout) Accept a pending connection on an interface and return a new MessageEndpoint \param endpoint (handle_id_t) Handle ID of specified endpoint \param id (uint64_t) id of message to send \param data (uint8_t*/uint64_t) Message data to be sent, if size <= 8 then treated as an integer containing message data

/// \return 0 on success, negative error code on failure
/////////////////////////////
long SysEndpointCall(regs64_t* r){
	process_t* currentProcess = Scheduler::GetCurrentProcess();

	Handle* endpHandle;
	if(Scheduler::FindHandle(currentProcess, SC_ARG0(r), &endpHandle)){
		Log::Warning("SysEndpointCall: Invalid handle ID %d", SC_ARG0(r));
		return -EINVAL;
	}

	if(!endpHandle->ko->IsType(MessageEndpoint::TypeID())){
		Log::Warning("SysEndpointCall: Invalid handle type (ID %d)", SC_ARG0(r));
		return -EINVAL;
	}

	uint16_t* size = reinterpret_cast<uint16_t*>(SC_ARG5(r));
	if((*size) > 8 && !Memory::CheckUsermodePointer(SC_ARG3(r), *size, currentProcess->addressSpace)){
		return -EFAULT; // Data greater than 8 and invalid pointer
	}

	MessageEndpoint* endpoint = reinterpret_cast<MessageEndpoint*>(endpHandle->ko.get());

	return endpoint->Call(SC_ARG1(r), *size, SC_ARG2(r), SC_ARG3(r), size, reinterpret_cast<uint64_t*>(SC_ARG4(r)), -1);
}

/////////////////////////////
/// \brief SysEndpointInfo (endpoint, info)