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|
/********************************************************/
/* ntapi: Native API core library */
/* Copyright (C) 2013--2021 SysDeer Technologies, LLC */
/* Released under GPLv2 and GPLv3; see COPYING.NTAPI. */
/********************************************************/
#include <psxtypes/psxtypes.h>
#include <ntapi/nt_file.h>
#include <ntapi/nt_string.h>
#include <ntapi/nt_atomic.h>
#include <ntapi/nt_port.h>
#include <ntapi/nt_ipc.h>
#include <ntapi/nt_afl.h>
#include <ntapi/ntapi.h>
#include "ntapi_impl.h"
static const nt_guid g_aflpid = NT_IPC_GUID_AFLPID;
static const wchar16_t p_aflpid[6] = NT_IPC_OBJDIR_PREFIX_AFLPID;
static int32_t __aflctl_get_service_attr(
nt_rtdata * rtdata,
nt_tty_service_info * aflctl)
{
nt_iosb iosb;
/* inherited runtime data? */
if (rtdata->aflctl_keys[0]) {
aflctl->attr.ver_major = 0;
aflctl->attr.ver_minor = 0;
aflctl->attr.options = 0;
aflctl->attr.flags = 0;
aflctl->attr.type = rtdata->aflctl_type;
aflctl->attr.subtype = rtdata->aflctl_subtype;
aflctl->attr.keys.key[0] = rtdata->aflctl_keys[0];
aflctl->attr.keys.key[1] = rtdata->aflctl_keys[1];
aflctl->attr.keys.key[2] = rtdata->aflctl_keys[2];
aflctl->attr.keys.key[3] = rtdata->aflctl_keys[3];
aflctl->attr.keys.key[4] = rtdata->aflctl_keys[4];
aflctl->attr.keys.key[5] = rtdata->aflctl_keys[5];
__ntapi->tt_guid_copy(
&aflctl->attr.guid,
&rtdata->aflctl_guid);
return NT_STATUS_SUCCESS;
}
/* obtain service info */
return __ntapi->tty_query_information_service(
0,&iosb,aflctl,
&(nt_guid)NT_PORT_GUID_AFLCTL,
0,0);
}
static int32_t __aflctl_server_connect(
nt_rtdata * rtdata,
nt_tty_service_info * aflctl)
{
int32_t status;
/* already cononected? */
if (rtdata->haflctl)
return NT_STATUS_SUCCESS;
/* connect */
if ((status = __ntapi->ipc_connect_by_attr(
&rtdata->haflctl,
&aflctl->attr,
false)))
return status;
/* update */
rtdata->aflctl_type = aflctl->attr.type;
rtdata->aflctl_subtype = aflctl->attr.subtype;
rtdata->aflctl_keys[0] = aflctl->attr.keys.key[0];
rtdata->aflctl_keys[1] = aflctl->attr.keys.key[1];
rtdata->aflctl_keys[2] = aflctl->attr.keys.key[2];
rtdata->aflctl_keys[3] = aflctl->attr.keys.key[3];
rtdata->aflctl_keys[4] = aflctl->attr.keys.key[4];
rtdata->aflctl_keys[5] = aflctl->attr.keys.key[5];
__ntapi->tt_guid_copy(
&rtdata->aflctl_guid,
&aflctl->attr.guid);
return NT_STATUS_SUCCESS;
}
static int32_t __aflpid_symlink_set(
nt_rtdata * rtdata,
nt_tty_service_info * aflctl)
{
int32_t status;
void * hpiddir;
nt_port_name svcname;
nt_unicode_string str;
if (rtdata->haflpid)
return NT_STATUS_SUCCESS;
if (!rtdata->haflpiddir) {
if ((status = __ntapi->tt_open_ipc_object_directory(
&hpiddir,
NT_SEC_READ_CONTROL
| NT_DIRECTORY_QUERY
| NT_DIRECTORY_TRAVERSE
| NT_DIRECTORY_CREATE_OBJECT
| NT_DIRECTORY_CREATE_SUBDIRECTORY,
p_aflpid,&g_aflpid)))
return status;
if (at_locked_cas((intptr_t *)&rtdata->haflpiddir,0,(intptr_t)hpiddir))
__ntapi->zw_close(hpiddir);
}
__ntapi->tt_port_name_from_attr(
&svcname,&aflctl->attr);
str.strlen = (uint16_t)(__offsetof(nt_port_name,null_termination));
str.maxlen = sizeof(nt_port_name);
str.buffer = svcname.base_named_objects;
return __ntapi->tt_create_ipc_object_directory_entry(
&rtdata->haflpid,
NT_SEC_STANDARD_RIGHTS_ALL,
rtdata->haflpiddir,
0,&str,
pe_get_current_process_id());
}
static int32_t __stdcall __afl_open(
void * hipc,
nt_afl_info * afl,
nt_iosb * iosb,
nt_guid * afldev,
uint32_t opcode)
{
int32_t status;
nt_tty_port_msg msg;
nt_iosb siosb;
nt_tty_service_info aflctl;
nt_runtime_data * rtdata;
/* init */
rtdata = (__ntapi_internals())->rtdata;
/* aflctl service attributes */
if (!rtdata->haflpid)
if ((status = __aflctl_get_service_attr(rtdata,&aflctl)))
return status;
/* aflctl server */
if ((status = __aflctl_server_connect(rtdata,&aflctl)))
return status;
/* aflpid symlink */
if ((status = __aflpid_symlink_set(rtdata,&aflctl)))
return status;
/* hipc */
if (!hipc && (opcode == NT_TTY_AFL_ALLOC))
hipc = (__ntapi_internals())->rtdata->haflctl;
/* obtain afl info */
__ntapi->tt_aligned_block_memset(
&msg,0,sizeof(msg));
if (!iosb)
iosb = &siosb;
msg.header.msg_type = NT_LPC_NEW_MESSAGE;
msg.header.data_size = sizeof(nt_afl_info_msg) - sizeof(msg.header);
msg.header.msg_size = sizeof(msg);
msg.ttyinfo.opcode = opcode;
__ntapi->tt_guid_copy(
&msg.aflinfo.afldev,
afldev);
/* todo: device guid */
if ((status = __ntapi->zw_request_wait_reply_port(hipc,&msg,&msg)))
return status;
else if (msg.ttyinfo.status)
return msg.ttyinfo.status;
iosb->info = sizeof(msg.svcinfo);
iosb->status = NT_STATUS_SUCCESS;
/* new afl node? */
if (opcode == NT_TTY_AFL_ALLOC)
if ((status = __ntapi->ipc_connect_by_attr(
&hipc,&msg.svcinfo.attr,
false)))
return status;
/* all done */
__ntapi->tt_aligned_block_memset(
(uintptr_t *)afl,
0,sizeof(*afl));
afl->hport = hipc;
__ntapi->tt_guid_copy(
&afl->afldev,
afldev);
return NT_STATUS_SUCCESS;
}
int32_t __stdcall __ntapi_afl_create(
__in void * hport,
__out nt_afl_info * afl,
__in nt_oa * oa,
__out nt_iosb * iosb)
{
nt_guid afldev;
/* validate */
if (!oa->root_dir)
return NT_STATUS_DIRECTORY_SERVICE_REQUIRED;
if (!oa->obj_name)
return NT_STATUS_INVALID_PARAMETER;
if (oa->obj_name->strlen != sizeof(nt_guid_str_utf16))
return NT_STATUS_OBJECT_NAME_INVALID;
if (__ntapi->tt_string_to_guid_utf16(
(nt_guid_str_utf16 *)oa->obj_name->buffer,
&afldev))
return NT_STATUS_OBJECT_NAME_INVALID;
/* open afldev */
return __afl_open(
hport,afl,iosb,
&afldev,
NT_TTY_AFL_ALLOC);
}
int32_t __stdcall __ntapi_afl_open(
__in void * hport,
__out nt_afl_info * afl,
__in nt_oa * oa,
__out nt_iosb * iosb)
{
int32_t status;
nt_guid afldev;
void * hsymlink;
nt_oa ipcoa;
void * hipc;
nt_rtdata * rtdata;
nt_tty_service_info aflctl;
/* init */
rtdata = (__ntapi_internals())->rtdata;
/* validate */
if (!oa->root_dir)
return NT_STATUS_DIRECTORY_SERVICE_REQUIRED;
if (!oa->obj_name)
return NT_STATUS_INVALID_PARAMETER;
if (oa->obj_name->strlen != sizeof(nt_guid_str_utf16))
return NT_STATUS_OBJECT_NAME_INVALID;
if (__ntapi->tt_string_to_guid_utf16(
(nt_guid_str_utf16 *)oa->obj_name->buffer,
&afldev))
return NT_STATUS_OBJECT_NAME_INVALID;
/* open symlink */
ipcoa.len = sizeof(ipcoa);
ipcoa.root_dir = oa->root_dir;
ipcoa.obj_name = oa->obj_name;
ipcoa.obj_attr = 0;
ipcoa.sec_desc = oa->sec_desc;
ipcoa.sec_qos = oa->sec_qos;
status = __ntapi->zw_open_symbolic_link_object(
&hsymlink,
NT_SYMBOLIC_LINK_QUERY,
&ipcoa);
switch (status) {
case NT_STATUS_SUCCESS:
break;
case NT_STATUS_OBJECT_NAME_NOT_FOUND:
case NT_STATUS_OBJECT_PATH_NOT_FOUND:
if (oa->obj_attr & NT_OBJ_OPENIF)
return __afl_open(
hport,afl,iosb,
&afldev,
NT_TTY_AFL_ALLOC);
else
return status;
default:
return status;
}
/* aflctl service attributes */
if (!rtdata->haflpid)
if ((status = __aflctl_get_service_attr(rtdata,&aflctl)))
return status;
/* aflctl server */
if ((status = __aflctl_server_connect(rtdata,&aflctl)))
return status;
/* aflpid symlink */
if ((status = __aflpid_symlink_set(rtdata,&aflctl)))
return status;
/* ipc connect */
status = __ntapi->ipc_connect_by_symlink(
&hipc,hsymlink,false);
__ntapi->zw_close(
hsymlink);
if (status)
return status;
return __afl_open(
hipc,afl,iosb,
&afldev,
NT_TTY_AFL_OPEN);
}
|
