summaryrefslogtreecommitdiffhomepage
path: root/src/daemon/ntapi_dsr_internal_connection.c
blob: 5d8ee0966fad390191c4d27c1e05e21ab7f53eff (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
/********************************************************/
/*  ntapi: Native API core library                      */
/*  Copyright (C) 2013--2016  Z. Gilboa                 */
/*  Released under GPLv2 and GPLv3; see COPYING.NTAPI.  */
/********************************************************/

#include <ntapi/nt_status.h>
#include <ntapi/nt_thread.h>
#include <ntapi/nt_port.h>
#include <ntapi/nt_daemon.h>
#include <ntapi/ntapi.h>
#include "ntapi_impl.h"

/* __ntapi_dsr_connect_internal_client executes in the daemon's dedicated thread */
int32_t __stdcall __ntapi_dsr_connect_internal_client(nt_daemon_params * params)
{
	int32_t *		pstatus;

	intptr_t		port_id;
	nt_port_message		port_msg;
	nt_large_integer	timeout;
	void *			_hport_client;

	pstatus = &params->exit_code_daemon_start;

	/* timeout-enabled first connection */
	timeout.quad = NT_DSR_INIT_MAX_WAIT;

	*pstatus = __ntapi->zw_reply_wait_receive_port_ex(
		params->hport_daemon,
		&port_id,
		(nt_port_message *)0,
		(nt_port_message *)&port_msg,
		&timeout);

	if (*pstatus != NT_STATUS_SUCCESS)
		__ntapi->zw_terminate_thread(
			NT_CURRENT_THREAD_HANDLE,
			*pstatus);

	/* the internal client must be first */
	if (port_msg.client_id.process_id != pe_get_current_process_id())
		__ntapi->zw_terminate_thread(
			NT_CURRENT_THREAD_HANDLE,
			NT_STATUS_PORT_CONNECTION_REFUSED);

	/* accept connection request */
	*pstatus = __ntapi->zw_accept_connect_port(
		&_hport_client,
		port_msg.client_id.process_id,
		(nt_port_message *)&port_msg,
		NT_LPC_ACCEPT_CONNECTION,
		(nt_port_section_write *)0,
		(nt_port_section_read *)0);

	if (*pstatus != NT_STATUS_SUCCESS)
		__ntapi->zw_terminate_thread(
			NT_CURRENT_THREAD_HANDLE,
			*pstatus);

	/* finalize connection */
	*pstatus = __ntapi->zw_complete_connect_port(_hport_client);

	if (*pstatus != NT_STATUS_SUCCESS)
		__ntapi->zw_terminate_thread(
			NT_CURRENT_THREAD_HANDLE,
			*pstatus);

	return *pstatus;
}


/* __ntapi_dsr_internal_client_connect executes in its own temporary thread */
int32_t __stdcall __ntapi_dsr_internal_client_connect(nt_daemon_params * params)
{
	int32_t *			pstatus;

	nt_unicode_string		server_name;
	nt_object_attributes		oa;
	nt_security_quality_of_service	sqos;
	nt_large_integer		timeout;

	pstatus = &params->exit_code_internal_client;

	/* init server_name */
	server_name.strlen = (uint16_t)__ntapi->tt_string_null_offset_short((const int16_t *)params->port_name);
	server_name.maxlen = 0;
	server_name.buffer = (uint16_t *)params->port_name;

	/* init security structure */
	sqos.length 			= sizeof(sqos);
	sqos.impersonation_level	= NT_SECURITY_IMPERSONATION;
	sqos.context_tracking_mode	= NT_SECURITY_TRACKING_DYNAMIC;
	sqos.effective_only		= 1;

	/* init the port's object attributes */
	oa.len		= sizeof(oa);
	oa.root_dir	= (void *)0;
	oa.obj_name	= &server_name;
	oa.obj_attr	= 0;
	oa.sec_desc	= (nt_security_descriptor *)0;
	oa.sec_qos	= &sqos;

	/* wait for the server to be ready */
	timeout.quad = NT_DSR_INIT_MAX_WAIT;

	if ((*pstatus = __ntapi->zw_wait_for_single_object(
			params->hevent_daemon_ready,
			0,&timeout)))
		__ntapi->zw_terminate_thread(
			NT_CURRENT_THREAD_HANDLE,
			*pstatus);

	/* establish internal connection */
	*pstatus = __ntapi->zw_connect_port(
		&params->hport_internal_client,
		&server_name,
		&sqos,
		0,0,0,0,0);

	if (*pstatus != NT_STATUS_SUCCESS)
		__ntapi->zw_terminate_thread(
			NT_CURRENT_THREAD_HANDLE,
			*pstatus);

	/* return port info */
	if (params->pport_internal_client)
		*(params->pport_internal_client) = params->hport_internal_client;

	/* signal the 'internal-client-is-ready' event */
	*pstatus = __ntapi->zw_set_event(
		params->hevent_internal_client_ready,
		0);

	/* exit the task-specific thread */
	__ntapi->zw_terminate_thread(
		NT_CURRENT_THREAD_HANDLE,
		*pstatus);

	/* (no return) */
	return NT_STATUS_INTERNAL_ERROR;
}