summaryrefslogtreecommitdiff
path: root/source3/lib/util_hnd.c
blob: add040aa3d1ef8bbee248907fcc24cba1e6e810f (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
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480

/* 
 *  Unix SMB/Netbios implementation.
 *  Version 1.9.
 *  RPC Pipe client / server routines
 *  Copyright (C) Andrew Tridgell              1992-1997,
 *  Copyright (C) Luke Kenneth Casson Leighton 1996-1997,
 *  
 *  This program is free software; you can redistribute it and/or modify
 *  it under the terms of the GNU General Public License as published by
 *  the Free Software Foundation; either version 2 of the License, or
 *  (at your option) any later version.
 *  
 *  This program is distributed in the hope that it will be useful,
 *  but WITHOUT ANY WARRANTY; without even the implied warranty of
 *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 *  GNU General Public License for more details.
 *  
 *  You should have received a copy of the GNU General Public License
 *  along with this program; if not, write to the Free Software
 *  Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
 */


#include "includes.h"


extern int DEBUGLEVEL;

#ifndef MAX_OPEN_POLS
#define MAX_OPEN_POLS 64
#endif

#define POL_NO_INFO 0
#define POL_REG_INFO 1
#define POL_SAMR_INFO 2
#define POL_CLI_INFO 3

struct reg_info
{
    /* for use by \PIPE\winreg */
	fstring name; /* name of registry key */
};

struct samr_info
{
    /* for use by the \PIPE\samr policy */
	DOM_SID sid;
    uint32 rid; /* relative id associated with the pol_hnd */
    uint32 status; /* some sort of flag.  best to record it.  comes from opnum 0x39 */
};

struct cli_info
{
	struct cli_state *cli;
	uint16 fnum;
	void (*free)(struct cli_state*, uint16 fnum);
};

static struct policy
{
	struct policy *next, *prev;
	int pnum;
	BOOL open;
	POLICY_HND pol_hnd;
	int type;

	union {
		struct samr_info *samr;
		struct reg_info *reg;
		struct cli_info *cli;

	} dev;

} *Policy;

static struct bitmap *bmap;


/****************************************************************************
  create a unique policy handle
****************************************************************************/
static void create_pol_hnd(POLICY_HND *hnd)
{
	static uint32 pol_hnd_low  = 0;
	static uint32 pol_hnd_high = 0;

	if (hnd == NULL) return;

	/* i severely doubt that pol_hnd_high will ever be non-zero... */
	pol_hnd_low++;
	if (pol_hnd_low == 0) pol_hnd_high++;

	SIVAL(hnd->data, 0 , 0x0);  /* first bit must be null */
	SIVAL(hnd->data, 4 , pol_hnd_low ); /* second bit is incrementing */
	SIVAL(hnd->data, 8 , pol_hnd_high); /* second bit is incrementing */
	SIVAL(hnd->data, 12, time(NULL)); /* something random */
	SIVAL(hnd->data, 16, getpid()); /* something more random */
}

/****************************************************************************
  initialise policy handle states...
****************************************************************************/
BOOL init_policy_hnd(int num_pol_hnds)
{
	bmap = bitmap_allocate(num_pol_hnds);
	
	return bmap != NULL;
}

/****************************************************************************
  find first available policy slot.  creates a policy handle for you.
****************************************************************************/
BOOL register_policy_hnd(POLICY_HND *hnd)
{
	int i;
	struct policy *p;

	i = bitmap_find(bmap, 1);

	if (i == -1) {
		DEBUG(0,("ERROR: out of Policy Handles!\n"));
		return False;
	}

	p = (struct policy *)malloc(sizeof(*p));
	if (!p) {
		DEBUG(0,("ERROR: out of memory!\n"));
		return False;
	}

	ZERO_STRUCTP(p);

	p->open = True;				
	p->pnum = i;
	p->type = POL_NO_INFO;

	memcpy(&p->pol_hnd, hnd, sizeof(*hnd));

	bitmap_set(bmap, i);

	DLIST_ADD(Policy, p);
	
	DEBUG(4,("Opened policy hnd[%x] ", i));
	dump_data(4, (char *)hnd->data, sizeof(hnd->data));

	return True;
}

/****************************************************************************
  find first available policy slot.  creates a policy handle for you.
****************************************************************************/
BOOL open_policy_hnd(POLICY_HND *hnd)
{
	create_pol_hnd(hnd);
	return register_policy_hnd(hnd);
}

/****************************************************************************
  find policy by handle
****************************************************************************/
static struct policy *find_policy(const POLICY_HND *hnd)
{
	struct policy *p;

	for (p=Policy;p;p=p->next) {
		if (memcmp(&p->pol_hnd, hnd, sizeof(*hnd)) == 0) {
			DEBUG(4,("Found policy hnd[%x] ", p->pnum));
			dump_data(4, (const char *)hnd->data,
			sizeof(hnd->data));
			return p;
		}
	}

	DEBUG(4,("Policy not found: "));
	dump_data(4, (const char *)hnd->data, sizeof(hnd->data));

	return NULL;
}

/****************************************************************************
  find policy index by handle
****************************************************************************/
int find_policy_by_hnd(const POLICY_HND *hnd)
{
	struct policy *p = find_policy(hnd);

	return p?p->pnum:-1;
}

/****************************************************************************
  set samr rid
****************************************************************************/
BOOL set_policy_samr_rid(POLICY_HND *hnd, uint32 rid)
{
	struct policy *p = find_policy(hnd);

	if (p && p->open)
	{
		DEBUG(3,("Setting policy device rid=%x pnum=%x\n",
			 rid, p->pnum));

		if (p->dev.samr == NULL)
		{
			p->dev.samr = (struct samr_info*)malloc(sizeof(*p->dev.samr));
		}
		if (p->dev.samr == NULL)
		{
			return False;
		}
		p->dev.samr->rid = rid;
		return True;
	}

	DEBUG(3,("Error setting policy rid=%x\n",rid));
	return False;
}


/****************************************************************************
  set samr pol status.  absolutely no idea what this is.
****************************************************************************/
BOOL set_policy_samr_pol_status(POLICY_HND *hnd, uint32 pol_status)
{
	struct policy *p = find_policy(hnd);

	if (p && p->open)
	{
		DEBUG(3,("Setting policy status=%x pnum=%x\n",
		          pol_status, p->pnum));

		if (p->dev.samr == NULL)
		{
			p->type = POL_SAMR_INFO;
			p->dev.samr = (struct samr_info*)malloc(sizeof(*p->dev.samr));
		}
		if (p->dev.samr == NULL)
		{
			return False;
		}
		p->dev.samr->status = pol_status;
		return True;
	} 

	DEBUG(3,("Error setting policy status=%x\n",
		 pol_status));
	return False;
}

/****************************************************************************
  set samr sid
****************************************************************************/
BOOL set_policy_samr_sid(POLICY_HND *hnd, DOM_SID *sid)
{
	pstring sidstr;
	struct policy *p = find_policy(hnd);

	if (p && p->open) {
		DEBUG(3,("Setting policy sid=%s pnum=%x\n",
			 sid_to_string(sidstr, sid), p->pnum));

		if (p->dev.samr == NULL)
		{
			p->type = POL_SAMR_INFO;
			p->dev.samr = (struct samr_info*)malloc(sizeof(*p->dev.samr));
		}
		if (p->dev.samr == NULL)
		{
			return False;
		}
		memcpy(&p->dev.samr->sid, sid, sizeof(*sid));
		return True;
	}

	DEBUG(3,("Error setting policy sid=%s\n",
		  sid_to_string(sidstr, sid)));
	return False;
}

/****************************************************************************
  get samr sid
****************************************************************************/
BOOL get_policy_samr_sid(POLICY_HND *hnd, DOM_SID *sid)
{
	struct policy *p = find_policy(hnd);

	if (p != NULL && p->open)
	{
		pstring sidstr;
		memcpy(sid, &p->dev.samr->sid, sizeof(*sid));
		DEBUG(3,("Getting policy sid=%s pnum=%x\n",
			 sid_to_string(sidstr, sid), p->pnum));

		return True;
	}

	DEBUG(3,("Error getting policy\n"));
	return False;
}

/****************************************************************************
  get samr rid
****************************************************************************/
uint32 get_policy_samr_rid(POLICY_HND *hnd)
{
	struct policy *p = find_policy(hnd);

	if (p && p->open) {
		uint32 rid = p->dev.samr->rid;
		DEBUG(3,("Getting policy device rid=%x pnum=%x\n",
		          rid, p->pnum));

		return rid;
	}

	DEBUG(3,("Error getting policy\n"));
	return 0xffffffff;
}

/****************************************************************************
  set reg name 
****************************************************************************/
BOOL set_policy_reg_name(POLICY_HND *hnd, fstring name)
{
	struct policy *p = find_policy(hnd);

	if (p && p->open)
	{
		DEBUG(3,("Getting policy pnum=%x\n",
			 p->pnum));

		if (p->dev.reg == NULL)
		{
			p->type = POL_REG_INFO;
			p->dev.reg = (struct reg_info*)malloc(sizeof(*p->dev.reg));
		}
		if (p->dev.reg == NULL)
		{
			return False;
		}
		fstrcpy(p->dev.reg->name, name);
		return True;
	}

	DEBUG(3,("Error setting policy name=%s\n", name));
	return False;
}

/****************************************************************************
  set reg name 
****************************************************************************/
BOOL get_policy_reg_name(POLICY_HND *hnd, fstring name)
{
	struct policy *p = find_policy(hnd);

	if (p && p->open)
	{
		DEBUG(3,("Setting policy pnum=%x name=%s\n",
			 p->pnum, name));

		fstrcpy(name, p->dev.reg->name);
		DEBUG(5,("getting policy reg name=%s\n", name));
		return True;
	}

	DEBUG(3,("Error getting policy reg name\n"));
	return False;
}

/****************************************************************************
  set cli state
****************************************************************************/
BOOL set_policy_cli_state(POLICY_HND *hnd, struct cli_state *cli, uint16 fnum,
				void (*free_fn)(struct cli_state *, uint16))
{
	struct policy *p = find_policy(hnd);

	if (p && p->open)
	{
		DEBUG(3,("Setting policy cli state pnum=%x\n", p->pnum));

		if (p->dev.cli == NULL)
		{
			p->type = POL_CLI_INFO;
			p->dev.cli = (struct cli_info*)malloc(sizeof(*p->dev.cli));
		}
		if (p->dev.cli == NULL)
		{
			return False;
		}
		p->dev.cli->cli  = cli;
		p->dev.cli->free = free_fn;
		p->dev.cli->fnum = fnum;
		return True;
	}

	DEBUG(3,("Error setting policy cli state\n"));

	return False;
}

/****************************************************************************
  get cli state
****************************************************************************/
BOOL get_policy_cli_state(const POLICY_HND *hnd, struct cli_state **cli,
	uint16 *fnum)
{
	struct policy *p = find_policy(hnd);

	if (p != NULL && p->open)
	{
		DEBUG(3,("Getting cli state pnum=%x\n", p->pnum));

		if (cli != NULL)
		{
			(*cli ) = p->dev.cli->cli;
		}
		if (fnum != NULL)
		{
			(*fnum) = p->dev.cli->fnum;
		}

		return True;
	}

	DEBUG(3,("Error getting policy\n"));
	return False;
}

/****************************************************************************
  close an lsa policy
****************************************************************************/
BOOL close_policy_hnd(POLICY_HND *hnd)
{
	struct policy *p = find_policy(hnd);

	if (!p)
	{
		DEBUG(3,("Error closing policy\n"));
		return False;
	}

	DEBUG(3,("Closed policy name pnum=%x\n",  p->pnum));

	DLIST_REMOVE(Policy, p);

	bitmap_clear(bmap, p->pnum);

	ZERO_STRUCTP(p);
	ZERO_STRUCTP(hnd);

	switch (p->type)
	{
		case POL_REG_INFO:
		{
			free(p->dev.reg);
			break;
		}
		case POL_SAMR_INFO:
		{
			free(p->dev.samr);
			break;
		}
		case POL_CLI_INFO:
		{
			if (p->dev.cli->free != NULL)
			{
				p->dev.cli->free(p->dev.cli->cli,
				                 p->dev.cli->fnum);
			}
			free(p->dev.cli);
			break;
		}
	}

	free(p);

	return True;
}