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/********************************************************/
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/* ntapi: Native API core library */
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/* Copyright (C) 2013--2017 Z. Gilboa */
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/* Released under GPLv2 and GPLv3; see COPYING.NTAPI. */
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/********************************************************/
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#include <psxtypes/psxtypes.h>
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#include <ntapi/nt_file.h>
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#include <ntapi/nt_string.h>
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#include <ntapi/nt_atomic.h>
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#include <ntapi/nt_port.h>
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#include <ntapi/nt_ipc.h>
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#include <ntapi/nt_sem.h>
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#include <ntapi/ntapi.h>
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#include "ntapi_impl.h"
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static int32_t __sem_ioctl_return(
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intptr_t * hlock,
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int32_t status)
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{
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at_store(hlock,0);
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return status;
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}
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int32_t __stdcall __ntapi_sem_ioctl(
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__in nt_sem_info * sem,
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__in void * hevent __optional,
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__in nt_io_apc_routine * apc_routine __optional,
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__in void * apc_context __optional,
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__out nt_iosb * iosb,
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__in uint32_t io_control_code,
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__in void * input_buffer __optional,
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__in uint32_t input_buffer_length,
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__out void * output_buffer __optional,
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__in uint32_t output_buffer_length)
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{
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int32_t status;
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void * hsection;
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void * secaddr;
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size_t secsize;
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nt_sem_info_msg msg;
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intptr_t * hlock;
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(void)output_buffer;
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(void)output_buffer_length;
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/* validate */
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if (io_control_code)
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return NT_STATUS_NOT_SUPPORTED;
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else if (!iosb)
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return NT_STATUS_INVALID_PARAMETER;
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else if (!input_buffer_length)
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return NT_STATUS_INVALID_PARAMETER;
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else if (input_buffer_length % sizeof(nt_sem_op))
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return NT_STATUS_INFO_LENGTH_MISMATCH;
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/* section */
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if (sem->section_addr) {
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hsection = sem->section;
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secaddr = sem->section_addr;
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secsize = sem->section_size;
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} else if ((status = __ntapi->ipc_init_section_by_port(
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sem->hport,&hsection,
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&secaddr,&secsize)))
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return status;
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if (input_buffer_length > secsize)
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return NT_STATUS_INFO_LENGTH_MISMATCH;
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/* lock */
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hlock = &(__ntapi_internals()->hlock);
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if (at_locked_cas(hlock,0,1))
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return NT_STATUS_RESOURCE_NOT_OWNED;
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/* semop array to section */
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__ntapi->tt_generic_memcpy(
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secaddr,input_buffer,
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input_buffer_length);
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/* msg */
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__ntapi->tt_aligned_block_memset(
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&msg,0,sizeof(msg));
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msg.header.msg_type = NT_LPC_NEW_MESSAGE;
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msg.header.data_size = sizeof(msg.data);
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msg.header.msg_size = sizeof(msg);
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msg.data.ttyinfo.opcode = NT_TTY_SEM_IOCTL;
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msg.data.seminfo.semkey = sem->semkey;
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msg.data.seminfo.semid = sem->semid;
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msg.data.seminfo.sempid = sem->sempid;
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msg.data.seminfo.section_addr = secaddr;
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msg.data.seminfo.section_size = input_buffer_length;
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msg.data.seminfo.hevent[0] = hevent;
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msg.data.seminfo.apc_routine = apc_routine;
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msg.data.seminfo.apc_context = apc_context;
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msg.data.seminfo.riosb = iosb;
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if ((status = __ntapi->zw_request_wait_reply_port(sem->hport,&msg,&msg)))
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return __sem_ioctl_return(hlock,status);
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else if (msg.data.ttyinfo.status)
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return __sem_ioctl_return(hlock,msg.data.ttyinfo.status);
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iosb->status = NT_STATUS_SUCCESS;
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iosb->info = 0;
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return __sem_ioctl_return(hlock,NT_STATUS_SUCCESS);
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}
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