summaryrefslogtreecommitdiff
path: root/source4/lib/registry/tools/regshell.c
blob: 0812cad73f0597100b622607d60c918d52b94f1c (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
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
/* 
   Unix SMB/CIFS implementation.
   simple registry frontend
   
   Copyright (C) Jelmer Vernooij 2004

   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"
#include "lib/registry/registry.h"
#include "lib/cmdline/popt_common.h"
#include "lib/events/events.h"
#include "lib/registry/reg_backend_rpc.h"
#include "system/time.h"
#include "lib/replace/readline.h"
#include "librpc/gen_ndr/ndr_security.h"

/* 
 * ck/cd - change key
 * ls - list values/keys
 * rmval/rm - remove value
 * rmkey/rmdir - remove key
 * mkkey/mkdir - make key
 * ch - change hive
 * info - show key info
 * save - save hive
 * print - print value
 * help
 * exit
 */

static struct registry_key *cmd_info(TALLOC_CTX *mem_ctx, struct registry_context *ctx,struct registry_key *cur, int argc, char **argv)
{
	struct security_descriptor *sec_desc = NULL;
	time_t last_mod;
	WERROR error;
	
	printf("Name: %s\n", cur->name);
	printf("Full path: %s\n", cur->path);
	printf("Key Class: %s\n", cur->class_name);
	last_mod = nt_time_to_unix(cur->last_mod);
	printf("Time Last Modified: %s\n", ctime(&last_mod));

	error = reg_get_sec_desc(mem_ctx, cur, &sec_desc);
	if (!W_ERROR_IS_OK(error)) {
		printf("Error getting security descriptor\n");
	} else {
		ndr_print_debug((ndr_print_fn_t)ndr_print_security_descriptor, "Security", sec_desc);
	}
	talloc_free(sec_desc);
	return cur;
}

static struct registry_key *cmd_predef(TALLOC_CTX *mem_ctx, struct registry_context *ctx, struct registry_key *cur, int argc, char **argv)
{
	struct registry_key *ret = NULL;
	if (argc < 2) {
		fprintf(stderr, "Usage: predef predefined-key-name\n");
	} else if (!ctx) {
		fprintf(stderr, "No full registry loaded, no predefined keys defined\n");
	} else {
		WERROR error = reg_get_predefined_key_by_name(ctx, argv[1], &ret);

		if (!W_ERROR_IS_OK(error)) {
			fprintf(stderr, "Error opening predefined key %s: %s\n", argv[1], win_errstr(error));
			ret = NULL;
		}
	}
	return ret;
}

static struct registry_key *cmd_pwd(TALLOC_CTX *mem_ctx, struct registry_context *ctx,struct registry_key *cur, int argc, char **argv)
{
	printf("%s\n", cur->path);
	return cur;
}

static struct registry_key *cmd_set(TALLOC_CTX *mem_ctx, struct registry_context *ctx,struct registry_key *cur, int argc, char **argv)
{
	if (argc < 4) {
		fprintf(stderr, "Usage: set value-name type value\n");
	} else {
		struct registry_value *val;
		if (reg_string_to_val(mem_ctx, argv[2], argv[3], &val->data_type, &val->data)) {
			WERROR error = reg_val_set(cur, argv[1], val->data_type, val->data);
			if (!W_ERROR_IS_OK(error)) {
				fprintf(stderr, "Error setting value: %s\n", win_errstr(error));
				return NULL;
			}
		} else {
			fprintf(stderr, "Unable to interpret data\n");
		}
	}
	return cur;
}

static struct registry_key *cmd_ck(TALLOC_CTX *mem_ctx, struct registry_context *ctx,struct registry_key *cur, int argc, char **argv)
{ 
	struct registry_key *new = NULL;
	WERROR error;
	if(argc < 2) {
		new = cur;
	} else {
		error = reg_open_key(mem_ctx, cur, argv[1], &new);
		if(!W_ERROR_IS_OK(error)) {
			DEBUG(0, ("Error opening specified key: %s\n", win_errstr(error)));
			return NULL;
		}
	} 

	printf("Current path is: %s\n", new->path);
	
	return new;
}

static struct registry_key *cmd_print(TALLOC_CTX *mem_ctx, struct registry_context *ctx,struct registry_key *cur, int argc, char **argv)
{
	struct registry_value *value;
	WERROR error;

	if (argc != 2) {
		fprintf(stderr, "Usage: print <valuename>");
		return NULL;
	}
	
	error = reg_key_get_value_by_name(mem_ctx, cur, argv[1], &value);
	if (!W_ERROR_IS_OK(error)) {
		fprintf(stderr, "No such value '%s'\n", argv[1]);
		return NULL;
	}

	printf("%s\n%s\n", str_regtype(value->data_type), reg_val_data_string(mem_ctx, value->data_type, &value->data));
	return NULL;
}

static struct registry_key *cmd_ls(TALLOC_CTX *mem_ctx, struct registry_context *ctx,struct registry_key *cur, int argc, char **argv)
{
	int i;
	WERROR error;
	struct registry_value *value;
	struct registry_key *sub;
	for(i = 0; W_ERROR_IS_OK(error = reg_key_get_subkey_by_index(mem_ctx, cur, i, &sub)); i++) {
		printf("K %s\n", sub->name);
	}

	if(!W_ERROR_EQUAL(error, WERR_NO_MORE_ITEMS)) {
		DEBUG(0, ("Error occured while browsing thru keys: %s\n", win_errstr(error)));
	}

	for(i = 0; W_ERROR_IS_OK(error = reg_key_get_value_by_index(mem_ctx, cur, i, &value)); i++) {
		printf("V \"%s\" %s %s\n", value->name, str_regtype(value->data_type), reg_val_data_string(mem_ctx, value->data_type, &value->data));
	}
	
	return NULL; 
}
static struct registry_key *cmd_mkkey(TALLOC_CTX *mem_ctx, struct registry_context *ctx,struct registry_key *cur, int argc, char **argv)
{ 
	struct registry_key *tmp;
	if(argc < 2) {
		fprintf(stderr, "Usage: mkkey <keyname>\n");
		return NULL;
	}
	
	if(!W_ERROR_IS_OK(reg_key_add_name(mem_ctx, cur, argv[1], 0, NULL, &tmp))) {
		fprintf(stderr, "Error adding new subkey '%s'\n", argv[1]);
		return NULL;
	}

	return NULL; 
}

static struct registry_key *cmd_rmkey(TALLOC_CTX *mem_ctx, struct registry_context *ctx,struct registry_key *cur, int argc, char **argv)
{ 
	if(argc < 2) {
		fprintf(stderr, "Usage: rmkey <name>\n");
		return NULL;
	}

	if(!W_ERROR_IS_OK(reg_key_del(cur, argv[1]))) {
		fprintf(stderr, "Error deleting '%s'\n", argv[1]);
	} else {
		fprintf(stderr, "Successfully deleted '%s'\n", argv[1]);
	}
	
	return NULL; 
}

static struct registry_key *cmd_rmval(TALLOC_CTX *mem_ctx, struct registry_context *ctx,struct registry_key *cur, int argc, char **argv)
{ 
	if(argc < 2) {
		fprintf(stderr, "Usage: rmval <valuename>\n");
		return NULL;
	}

	if(!W_ERROR_IS_OK(reg_del_value(cur, argv[1]))) {
		fprintf(stderr, "Error deleting value '%s'\n", argv[1]);
	} else {
		fprintf(stderr, "Successfully deleted value '%s'\n", argv[1]);
	}

	return NULL; 
}

static struct registry_key *cmd_exit(TALLOC_CTX *mem_ctx, struct registry_context *ctx,struct registry_key *cur, int argc, char **argv)
{
	exit(0);
	return NULL; 
}

static struct registry_key *cmd_help(TALLOC_CTX *mem_ctx, struct registry_context *ctx,struct registry_key *, int, char **);

static struct {
	const char *name;
	const char *alias;
	const char *help;
	struct registry_key *(*handle)(TALLOC_CTX *mem_ctx, struct registry_context *ctx,struct registry_key *, int argc, char **argv);
} regshell_cmds[] = {
	{"ck", "cd", "Change current key", cmd_ck },
	{"info", "i", "Show detailed information of a key", cmd_info },
	{"list", "ls", "List values/keys in current key", cmd_ls },
	{"print", "p", "Print value", cmd_print },
	{"mkkey", "mkdir", "Make new key", cmd_mkkey },
	{"rmval", "rm", "Remove value", cmd_rmval },
	{"rmkey", "rmdir", "Remove key", cmd_rmkey },
	{"pwd", "pwk", "Printing current key", cmd_pwd },
	{"set", "update", "Update value", cmd_set },
	{"help", "?", "Help", cmd_help },
	{"exit", "quit", "Exit", cmd_exit },
	{"predef", "predefined", "Go to predefined key", cmd_predef },
	{NULL }
};

static struct registry_key *cmd_help(TALLOC_CTX *mem_ctx, struct registry_context *ctx, struct registry_key *cur, int argc, char **argv)
{
	int i;
	printf("Available commands:\n");
	for(i = 0; regshell_cmds[i].name; i++) {
		printf("%s - %s\n", regshell_cmds[i].name, regshell_cmds[i].help);
	}
	return NULL;
} 

static struct registry_key *process_cmd(TALLOC_CTX *mem_ctx, struct registry_context *ctx, struct registry_key *k, char *line)
{
	int argc;
	char **argv = NULL;
	int ret, i;

	if ((ret = poptParseArgvString(line, &argc, (const char ***) &argv)) != 0) {
		fprintf(stderr, "regshell: %s\n", poptStrerror(ret));
		return k;
	}

	for(i = 0; regshell_cmds[i].name; i++) {
		if(!strcmp(regshell_cmds[i].name, argv[0]) || 
		   (regshell_cmds[i].alias && !strcmp(regshell_cmds[i].alias, argv[0]))) {
			return regshell_cmds[i].handle(mem_ctx, ctx, k, argc, argv);
		}
	}

	fprintf(stderr, "No such command '%s'\n", argv[0]);
	
	return k;
}

#define MAX_COMPLETIONS 100

static struct registry_key *current_key = NULL;

static char **reg_complete_command(const char *text, int start, int end)
{
	/* Complete command */
	char **matches;
	int i, len, samelen=0, count=1;

	matches = malloc_array_p(char *, MAX_COMPLETIONS);
	if (!matches) return NULL;
	matches[0] = NULL;

	len = strlen(text);
	for (i=0;regshell_cmds[i].handle && count < MAX_COMPLETIONS-1;i++) {
		if (strncmp(text, regshell_cmds[i].name, len) == 0) {
			matches[count] = strdup(regshell_cmds[i].name);
			if (!matches[count])
				goto cleanup;
			if (count == 1)
				samelen = strlen(matches[count]);
			else
				while (strncmp(matches[count], matches[count-1], samelen) != 0)
					samelen--;
			count++;
		}
	}

	switch (count) {
	case 0:	/* should never happen */
	case 1:
		goto cleanup;
	case 2:
		matches[0] = strdup(matches[1]);
		break;
	default:
		matches[0] = strndup(matches[1], samelen);
	}
	matches[count] = NULL;
	return matches;

cleanup:
	count--;
	while (count >= 0) {
		free(matches[count]);
		count--;
	}
	free(matches);
	return NULL;
}

static char **reg_complete_key(const char *text, int start, int end)
{
	struct registry_key *base;
	struct registry_key *subkey;
	int i, j = 1;
	int samelen = 0;
	int len;
	char **matches;
	const char *base_n = "";
	TALLOC_CTX *mem_ctx;
	WERROR status;

	matches = malloc_array_p(char *, MAX_COMPLETIONS);
	if (!matches) return NULL;
	matches[0] = NULL;
	mem_ctx = talloc_init("completion");

	base = current_key;

	len = strlen(text);
	for(i = 0; j < MAX_COMPLETIONS-1; i++) {
		status = reg_key_get_subkey_by_index(mem_ctx, base, i, &subkey);
		if(W_ERROR_IS_OK(status)) {
			if(!strncmp(text, subkey->name, len)) {
				matches[j] = strdup(subkey->name);
				j++;

				if (j == 1)
					samelen = strlen(matches[j]);
				else
					while (strncmp(matches[j], matches[j-1], samelen) != 0)
						samelen--;
			}
		} else if(W_ERROR_EQUAL(status, WERR_NO_MORE_ITEMS)) {
			break;
		} else {
			printf("Error creating completion list: %s\n", win_errstr(status));
			talloc_free(mem_ctx);
			return NULL;
		}
	}

	if (j == 1) { /* No matches at all */
		SAFE_FREE(matches);
		talloc_free(mem_ctx);
		return NULL;
	}

	if (j == 2) { /* Exact match */
		asprintf(&matches[0], "%s%s", base_n, matches[1]);
	} else {
		asprintf(&matches[0], "%s%s", base_n, talloc_strndup(mem_ctx, matches[1], samelen));
	}		
	talloc_free(mem_ctx);

	matches[j] = NULL;
	return matches;
}

static char **reg_completion(const char *text, int start, int end)
{
	smb_readline_ca_char(' ');

	if (start == 0) {
		return reg_complete_command(text, start, end);
	} else {
		return reg_complete_key(text, start, end);
	}
}

 int main(int argc, char **argv)
{
	int opt;
	const char *backend = NULL;
	struct registry_key *curkey = NULL;
	poptContext pc;
	WERROR error;
	TALLOC_CTX *mem_ctx = talloc_init("cmd");
	const char *remote = NULL;
	struct registry_context *h = NULL;
	struct poptOption long_options[] = {
		POPT_AUTOHELP
		{"backend", 'b', POPT_ARG_STRING, &backend, 0, "backend to use", NULL},
		{"remote", 'R', POPT_ARG_STRING, &remote, 0, "connect to specified remote server", NULL},
		POPT_COMMON_SAMBA
		POPT_COMMON_CREDENTIALS
		POPT_COMMON_VERSION
		POPT_TABLEEND
	};

	registry_init();

	pc = poptGetContext(argv[0], argc, (const char **) argv, long_options,0);
	
	while((opt = poptGetNextOpt(pc)) != -1) {
	}

	if (remote) {
		error = reg_open_remote (&h, cmdline_credentials, remote, NULL); 
	} else if (backend) {
		error = reg_open_hive(NULL, backend, poptGetArg(pc), NULL, &curkey);
	} else {
		error = reg_open_local(&h);
	}

	if(!W_ERROR_IS_OK(error)) {
		fprintf(stderr, "Unable to open registry\n");
		return 1;
	}

	if (h) {
		uint32_t try_hkeys[] = {
			HKEY_CLASSES_ROOT,
			HKEY_CURRENT_USER,
			HKEY_LOCAL_MACHINE,
			HKEY_USERS,
			HKEY_PERFORMANCE_DATA,
			HKEY_CURRENT_CONFIG,
			HKEY_DYN_DATA,
			HKEY_PERFORMANCE_TEXT,
			HKEY_PERFORMANCE_NLSTEXT,
			0
		};
		int i;

		for (i = 0; try_hkeys[i]; i++) {
			WERROR err;
			err = reg_get_predefined_key(h, try_hkeys[i], &curkey);
			if (W_ERROR_IS_OK(err)) {
				break;
			} else {
				curkey = NULL;
			}
		}
	}

	if (!curkey) {
		fprintf(stderr, "Unable to access any of the predefined keys\n");
		return -1;
	}
	
	poptFreeContext(pc);
	
	while(True) {
		char *line, *prompt;
		
		if(curkey->hive->root->name) {
			asprintf(&prompt, "%s:%s> ", curkey->hive->root->name, curkey->path);
		} else {
			asprintf(&prompt, "%s> ", curkey->path);
		}
		
		current_key = curkey; 		/* No way to pass a void * pointer 
									   via readline :-( */
		line = smb_readline(prompt, NULL, reg_completion);

		if(!line)
			break;

		if(line[0] != '\n') {
			struct registry_key *new = process_cmd(mem_ctx, h, curkey, line);
			if(new)curkey = new;
		}
	}
	talloc_free(mem_ctx);

	return 0;
}