summaryrefslogtreecommitdiffhomepage
path: root/src/process/ntapi_tt_spawn_foreign_process.c
blob: ea5f0cf003f3224e16a112d7d71e410ba3ebde0e (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
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
/********************************************************/
/*  ntapi: Native API core library                      */
/*  Copyright (C) 2013--2017  Z. Gilboa                 */
/*  Released under GPLv2 and GPLv3; see COPYING.NTAPI.  */
/********************************************************/

#include <psxtypes/psxtypes.h>
#include <pemagine/pemagine.h>
#include <ntapi/nt_status.h>
#include <ntapi/nt_object.h>
#include <ntapi/nt_thread.h>
#include <ntapi/nt_process.h>
#include <ntapi/nt_string.h>
#include <ntapi/ntapi.h>
#include "ntapi_impl.h"


typedef int32_t win32_create_process_utf16(
	__in_opt	wchar16_t *			appname,
	__in_out_opt	wchar16_t *			cmdline,
	__in_opt	nt_sa *				process_sa_attr,
	__in_opt	nt_sa *				thread_sa_attr,
	__in		int32_t				inherit_handles,
	__in		uint32_t			creation_flags,
	__in		wchar16_t *			environment,
	__in_opt	wchar16_t *			cwd,
	__in		nt_process_startup_info *	startup_info,
	__out		nt_process_info *		process_info);


static int32_t __stdcall __tt_spawn_return(
	nt_runtime_data_block *	rtblock,
	void *			hprocess,
	void *			hthread,
	int32_t			status)
{
	if (hprocess) {
		__ntapi->zw_terminate_process(
			hprocess,status);

		__ntapi->zw_close(hprocess);
		__ntapi->zw_close(hthread);
	}

	__ntapi->zw_free_virtual_memory(
		NT_CURRENT_PROCESS_HANDLE,
		&rtblock->addr,
		&rtblock->size,
		NT_MEM_RELEASE);

	return status;
}

int32_t __stdcall __ntapi_tt_spawn_foreign_process(nt_spawn_process_params * sparams)
{
	int32_t				status;
	nt_process_info			processinfo;
	nt_create_process_params	cparams;
	nt_runtime_data_block		rtblock;
	nt_unicode_string *		imgname;
	nt_peb * 			peb;
	char *				patharg;
	void *				hkernel32;
	void *				hat;
	void *				hfile;
	uint32_t			written;
	wchar16_t *			imgbuf;
	char **				parg;
	char *				mark;
	char *				ch;
	char *				ch_arg;
	char *				ch_cap;
	int				fquote;
	uint32_t			finherit;
	uint32_t			fsuspended;
	wchar16_t *			cmdline;
	nt_strconv_mbtonative		uparams;
	nt_unicode_string		nt_image;
	nt_unicode_string		nt_cmd_line;
	win32_create_process_utf16 *	create_process_fn;
	char				create_process_fn_name[]
					= "CreateProcessW";

	/* validation */
	if (!sparams->argv)
		return NT_STATUS_INVALID_PARAMETER;

	if (!sparams->himage && !sparams->patharg)
		return NT_STATUS_OBJECT_PATH_INVALID;

	if (!(peb = (nt_peb *)pe_get_peb_address()))
		return NT_STATUS_INTERNAL_ERROR;

	if (!peb->process_params)
		return NT_STATUS_INTERNAL_ERROR;

	if (sparams->rtctx || sparams->hsession || sparams->hready)
		return NT_STATUS_INVALID_PARAMETER;

	/* hkernel32 */
	if (!(hkernel32 = pe_get_kernel32_module_handle()))
		return NT_STATUS_DLL_NOT_FOUND;

	if (!(create_process_fn = (win32_create_process_utf16 *)
			(pe_get_procedure_address(
				hkernel32,create_process_fn_name))))
		return NT_STATUS_PROCEDURE_NOT_FOUND;

	/* hat */
	hat = (sparams->hroot && (sparams->argv[0][0] == '/'))
		? sparams->hroot
		: sparams->hcwd
			? sparams->hcwd
			: peb->process_params->cwd_handle;

	/* patharg */
	patharg = sparams->patharg
		? (sparams->patharg[0] == '/')
			? (sparams->patharg[1] == '?')
				? &sparams->patharg[0]
				: &sparams->patharg[1]
			: &sparams->patharg[0]
		: 0;

	/* rtblock, rdata */
	rtblock.addr		= 0;
	rtblock.size		= 0x40000;
	rtblock.remote_addr	= 0;
	rtblock.remote_size	= 0;
	rtblock.flags		= 0;

	if ((status = __ntapi->zw_allocate_virtual_memory(
			NT_CURRENT_PROCESS_HANDLE,
			&rtblock.addr,0,
			&rtblock.size,
			NT_MEM_COMMIT,
			NT_PAGE_READWRITE)))
		return status;

	__ntapi->tt_aligned_block_memset(
		rtblock.addr,0,rtblock.size);

	/* imgbuf */
	imgbuf  = (wchar16_t *)rtblock.addr;
	imgbuf += 0x30000 / sizeof(*imgbuf);

	/* hfile */
	if (sparams->himage)
		hfile = sparams->himage;

	else if ((status = __ntapi_tt_open_file_utf8(
			&hfile,hat,patharg,1,
			imgbuf,0x2000)))
		return status;

	/* imgname */
	if ((status = __ntapi->zw_query_object(
			hfile,
			NT_OBJECT_NAME_INFORMATION,
			imgbuf,0x10000,&written)))
		return __tt_spawn_return(
			&rtblock,0,0,status);

	imgname = (nt_unicode_string *)imgbuf;

	/* argv --> cmdline (utf8) */
	ch_arg = (char *)rtblock.addr;
	ch_cap = ch_arg + 0x10000;

	for (parg=sparams->argv; *parg; parg++) {
		for (ch=*parg, fquote=0; *ch && !fquote; ch++)
			fquote = ((*ch == ' ')
					|| (*ch == '\t')
					|| (*ch == '"'));

		if (fquote)
			*ch_arg++ = '"';

		for (ch=*parg, fquote=0; *ch && !fquote; ) {
			if (ch[0] == '\\') {
				for (mark=&ch[1]; *mark=='\\'; )
					mark++;

				if ((ch_arg + 2*(mark-ch)) >= ch_cap)
					return __tt_spawn_return(
						&rtblock,0,0,
						NT_STATUS_NAME_TOO_LONG);

				if (!mark[0] && fquote) {
					for (; *ch=='\\'; ch++) {
						*ch_arg++ = '\\';
						*ch_arg++ = '\\';
					}
				} else if (mark[0] == '"') {
					for (; *ch=='\\'; ch++) {
						*ch_arg++ = '\\';
						*ch_arg++ = '\\';
					}
				} else {
					*ch_arg++ = *ch++;
				}

			} else if (ch[0] == '"') {
				*ch_arg++ = '\\';
				*ch_arg++ = *ch++;

			} else {
				*ch_arg++ = *ch++;
			}
		}

		if (fquote)
			*ch_arg++ = '"';

		*ch_arg++ = ' ';

		if (ch_arg >= ch_cap)
			return __tt_spawn_return(
				&rtblock,0,0,
				NT_STATUS_NAME_TOO_LONG);

	}

	ch_arg[-1] = 0;

	/* cmdline (utf8) --> cmdline (utf16) */
	cmdline  = (wchar16_t *)rtblock.addr;
	cmdline += (0x10000 / sizeof(wchar16_t));

	uparams.src                = (unsigned char *)rtblock.addr;
	uparams.src_size_in_bytes  = 0;
	uparams.dst                = cmdline;
	uparams.dst_size_in_bytes  = 0x10000 - sizeof(wchar16_t);
	uparams.code_points        = 0;
	uparams.bytes_written      = 0;

	if ((status = __ntapi->uc_convert_unicode_stream_utf8_to_utf16(&uparams)))
		return __tt_spawn_return(
			&rtblock,0,0,status);

	else if (uparams.leftover_count)
		return __tt_spawn_return(
			&rtblock,0,0,
			NT_STATUS_ILLEGAL_CHARACTER);

	cmdline[uparams.bytes_written / sizeof(wchar16_t)] = 0;

	/* nt_cmd_line */
	nt_cmd_line.strlen = uparams.bytes_written;
	nt_cmd_line.maxlen = uparams.bytes_written + sizeof(wchar16_t);
	nt_cmd_line.buffer = cmdline;

	/* nt_image */
	nt_image.buffer  = (wchar16_t *)rtblock.addr;
	nt_image.buffer += (0x20000 / sizeof(wchar16_t));

	uparams.src                = (unsigned char *)sparams->argv[0];
	uparams.src_size_in_bytes  = 0;
	uparams.dst                = nt_image.buffer;
	uparams.dst_size_in_bytes  = 0x10000 - sizeof(wchar16_t);
	uparams.code_points        = 0;
	uparams.bytes_written      = 0;

	if ((status = __ntapi->uc_convert_unicode_stream_utf8_to_utf16(&uparams)))
		return __tt_spawn_return(
			&rtblock,0,0,status);

	else if (uparams.leftover_count)
		return __tt_spawn_return(
			&rtblock,0,0,
			NT_STATUS_ILLEGAL_CHARACTER);

	nt_image.strlen = uparams.bytes_written;
	nt_image.maxlen = uparams.bytes_written + sizeof(wchar16_t);

	nt_image.buffer[uparams.bytes_written / sizeof(wchar16_t)] = 0;

	/* cparams */
	__ntapi->tt_aligned_block_memset(
		&cparams,0,sizeof(cparams));

	cparams.image_name		= imgname->buffer;
	cparams.creation_flags_thread	= NT_PROCESS_CREATE_FLAGS_CREATE_THREAD_SUSPENDED;

	/* process_params */
	if ((status = __ntapi->rtl_create_process_parameters(
			&cparams.process_params,
			&nt_image,
			(nt_unicode_string *)0,
			(nt_unicode_string *)0,
			&nt_cmd_line,
			__ntapi->tt_get_peb_env_block_utf16(),
			(nt_unicode_string *)0,
			(nt_unicode_string *)0,
			(nt_unicode_string *)0,
			(nt_unicode_string *)0)))
		return status;

	__ntapi->rtl_normalize_process_params(cparams.process_params);

	if (sparams->startupinfo) {
		cparams.process_params->hstdin  = sparams->startupinfo->hstdin;
		cparams.process_params->hstdout = sparams->startupinfo->hstdout;
		cparams.process_params->hstderr = sparams->startupinfo->hstderr;
	}

	/* inherit handles? */
	if (cparams.process_params->hstdin
			|| cparams.process_params->hstdout
			|| cparams.process_params->hstderr)
		finherit = 1;

	else if (sparams->processflags & NT_PROCESS_CREATE_FLAGS_INHERIT_HANDLES)
		finherit = 1;

	else
		finherit = 0;

	/* process flags */
	if (sparams->processflags & NT_PROCESS_CREATE_FLAGS_CREATE_THREAD_SUSPENDED)
		fsuspended = NT_CREATE_SUSPENDED;

	else if (sparams->threadflags & NT_CREATE_SUSPENDED)
		fsuspended = NT_CREATE_SUSPENDED;

	else
		fsuspended = 0;

	/* hoppla: try either via kernel32 (sparams->startupinfo), or natively */
	if (sparams->spawnflags & NT_PROCESS_CREATE_FLAGS_DELEGATE_TO_SYSTEM_LIBRARY) {
		processinfo.hprocess   = 0;
		processinfo.hthread    = 0;
		processinfo.process_id = 0;
		processinfo.thread_id  = 0;

		if (!(create_process_fn(
				nt_image.buffer,
				nt_cmd_line.buffer,
				0,
				0,
				finherit,
				fsuspended,
				0,
				0,
				sparams->startupinfo,
				&processinfo)))
			return __tt_spawn_return(
				&rtblock,0,0,status);

		if ((status = __ntapi->zw_query_information_process(
			processinfo.hprocess,
			NT_PROCESS_BASIC_INFORMATION,
			&cparams.pbi,sizeof(cparams.pbi),
			0)))
			return __tt_spawn_return(
				&rtblock,0,0,status);

		cparams.hprocess = processinfo.hprocess;
		cparams.hthread  = processinfo.hthread;

		cparams.cid.process_id = processinfo.process_id;
		cparams.cid.thread_id  = processinfo.thread_id;
	} else {
		if ((status = __ntapi->tt_create_native_process(&cparams)))
			return __tt_spawn_return(
				&rtblock,0,0,status);
	}

	/* tidy up */
	if (!sparams->himage)
		__ntapi->zw_close(hfile);

	/* output */
	sparams->hprocess = cparams.hprocess;
	sparams->hthread  = cparams.hthread;

	sparams->cid.process_id = cparams.pbi.unique_process_id;
	sparams->cid.thread_id  = cparams.cid.thread_id;

	__ntapi->tt_generic_memcpy(
		&sparams->pbi,
		&cparams.pbi,
		sizeof(nt_pbi));

	/* create suspended? */
	if (fsuspended)
		return __tt_spawn_return(
			&rtblock,0,0,NT_STATUS_SUCCESS);

	/* tada */
	if ((status = __ntapi->zw_resume_thread(cparams.hthread,0)))
		return __tt_spawn_return(
			&rtblock,
			cparams.hprocess,
			cparams.hthread,
			status);

	/* all done */
	return __tt_spawn_return(
		&rtblock,0,0,NT_STATUS_SUCCESS);
}