source: branches/samba-3.5.x/source4/utils/oLschema2ldif.c@ 824

Last change on this file since 824 was 414, checked in by Herwig Bauernfeind, 15 years ago

Samba 3.5.0: Initial import
File size: 11.7 KB
Line 
1/*
2 ldb database library
3
4 Copyright (C) Simo Sorce 2005
5
6 ** NOTE! The following LGPL license applies to the ldb
7 ** library. This does NOT imply that all of Samba is released
8 ** under the LGPL
9
10 This library is free software; you can redistribute it and/or
11 modify it under the terms of the GNU Lesser General Public
12 License as published by the Free Software Foundation; either
13 version 3 of the License, or (at your option) any later version.
14
15 This library is distributed in the hope that it will be useful,
16 but WITHOUT ANY WARRANTY; without even the implied warranty of
17 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
18 Lesser General Public License for more details.
19
20 You should have received a copy of the GNU Lesser General Public
21 License along with this library; if not, see <http://www.gnu.org/licenses/>.
22*/
23
24/*
25 * Name: ldb
26 *
27 * Component: oLschema2ldif
28 *
29 * Description: utility to convert an OpenLDAP schema into AD LDIF
30 *
31 * Author: Simo Sorce
32 */
33
34#include "includes.h"
35#include "ldb.h"
36#include "tools/cmdline.h"
37#include "dsdb/samdb/samdb.h"
38
39#define SCHEMA_UNKNOWN 0
40#define SCHEMA_NAME 1
41#define SCHEMA_SUP 2
42#define SCHEMA_STRUCTURAL 3
43#define SCHEMA_ABSTRACT 4
44#define SCHEMA_AUXILIARY 5
45#define SCHEMA_MUST 6
46#define SCHEMA_MAY 7
47#define SCHEMA_SINGLE_VALUE 8
48#define SCHEMA_EQUALITY 9
49#define SCHEMA_ORDERING 10
50#define SCHEMA_SUBSTR 11
51#define SCHEMA_SYNTAX 12
52#define SCHEMA_DESC 13
53
54struct schema_conv {
55 int count;
56 int failures;
57};
58
59struct schema_token {
60 int type;
61 char *value;
62};
63
64struct ldb_context *ldb_ctx;
65struct ldb_dn *basedn;
66
67static int check_braces(const char *string)
68{
69 int b;
70 char *c;
71
72 b = 0;
73 if ((c = strchr(string, '(')) == NULL) {
74 return -1;
75 }
76 b++;
77 c++;
78 while (b) {
79 c = strpbrk(c, "()");
80 if (c == NULL) return 1;
81 if (*c == '(') b++;
82 if (*c == ')') b--;
83 c++;
84 }
85 return 0;
86}
87
88static char *skip_spaces(char *string) {
89 return (string + strspn(string, " \t\n"));
90}
91
92static int add_multi_string(struct ldb_message *msg, const char *attr, char *values)
93{
94 char *c;
95 char *s;
96 int n;
97
98 c = skip_spaces(values);
99 while (*c) {
100 n = strcspn(c, " \t$");
101 s = talloc_strndup(msg, c, n);
102 if (ldb_msg_add_string(msg, attr, s) != 0) {
103 return -1;
104 }
105 c += n;
106 c += strspn(c, " \t$");
107 }
108
109 return 0;
110}
111
112#define MSG_ADD_STRING(a, v) do { if (ldb_msg_add_string(msg, a, v) != 0) goto failed; } while(0)
113#define MSG_ADD_M_STRING(a, v) do { if (add_multi_string(msg, a, v) != 0) goto failed; } while(0)
114
115static char *get_def_value(TALLOC_CTX *ctx, char **string)
116{
117 char *c = *string;
118 char *value;
119 int n;
120
121 if (*c == '\'') {
122 c++;
123 n = strcspn(c, "\'");
124 value = talloc_strndup(ctx, c, n);
125 c += n;
126 c++; /* skip closing \' */
127 } else {
128 n = strcspn(c, " \t\n");
129 value = talloc_strndup(ctx, c, n);
130 c += n;
131 }
132 *string = c;
133
134 return value;
135}
136
137static struct schema_token *get_next_schema_token(TALLOC_CTX *ctx, char **string)
138{
139 char *c = skip_spaces(*string);
140 char *type;
141 struct schema_token *token;
142 int n;
143
144 token = talloc(ctx, struct schema_token);
145
146 n = strcspn(c, " \t\n");
147 type = talloc_strndup(token, c, n);
148 c += n;
149 c = skip_spaces(c);
150
151 if (strcasecmp("NAME", type) == 0) {
152 talloc_free(type);
153 token->type = SCHEMA_NAME;
154 /* we do not support aliases so we get only the first name given and skip others */
155 if (*c == '(') {
156 char *s = strchr(c, ')');
157 if (s == NULL) return NULL;
158 s = skip_spaces(s);
159 *string = s;
160
161 c++;
162 c = skip_spaces(c);
163 }
164
165 token->value = get_def_value(ctx, &c);
166
167 if (*string < c) { /* single name */
168 c = skip_spaces(c);
169 *string = c;
170 }
171 return token;
172 }
173 if (strcasecmp("SUP", type) == 0) {
174 talloc_free(type);
175 token->type = SCHEMA_SUP;
176
177 if (*c == '(') {
178 c++;
179 n = strcspn(c, ")");
180 token->value = talloc_strndup(ctx, c, n);
181 c += n;
182 c++;
183 } else {
184 token->value = get_def_value(ctx, &c);
185 }
186
187 c = skip_spaces(c);
188 *string = c;
189 return token;
190 }
191
192 if (strcasecmp("STRUCTURAL", type) == 0) {
193 talloc_free(type);
194 token->type = SCHEMA_STRUCTURAL;
195 *string = c;
196 return token;
197 }
198
199 if (strcasecmp("ABSTRACT", type) == 0) {
200 talloc_free(type);
201 token->type = SCHEMA_ABSTRACT;
202 *string = c;
203 return token;
204 }
205
206 if (strcasecmp("AUXILIARY", type) == 0) {
207 talloc_free(type);
208 token->type = SCHEMA_AUXILIARY;
209 *string = c;
210 return token;
211 }
212
213 if (strcasecmp("MUST", type) == 0) {
214 talloc_free(type);
215 token->type = SCHEMA_MUST;
216
217 if (*c == '(') {
218 c++;
219 n = strcspn(c, ")");
220 token->value = talloc_strndup(ctx, c, n);
221 c += n;
222 c++;
223 } else {
224 token->value = get_def_value(ctx, &c);
225 }
226
227 c = skip_spaces(c);
228 *string = c;
229 return token;
230 }
231
232 if (strcasecmp("MAY", type) == 0) {
233 talloc_free(type);
234 token->type = SCHEMA_MAY;
235
236 if (*c == '(') {
237 c++;
238 n = strcspn(c, ")");
239 token->value = talloc_strndup(ctx, c, n);
240 c += n;
241 c++;
242 } else {
243 token->value = get_def_value(ctx, &c);
244 }
245
246 c = skip_spaces(c);
247 *string = c;
248 return token;
249 }
250
251 if (strcasecmp("SINGLE-VALUE", type) == 0) {
252 talloc_free(type);
253 token->type = SCHEMA_SINGLE_VALUE;
254 *string = c;
255 return token;
256 }
257
258 if (strcasecmp("EQUALITY", type) == 0) {
259 talloc_free(type);
260 token->type = SCHEMA_EQUALITY;
261
262 token->value = get_def_value(ctx, &c);
263
264 c = skip_spaces(c);
265 *string = c;
266 return token;
267 }
268
269 if (strcasecmp("ORDERING", type) == 0) {
270 talloc_free(type);
271 token->type = SCHEMA_ORDERING;
272
273 token->value = get_def_value(ctx, &c);
274
275 c = skip_spaces(c);
276 *string = c;
277 return token;
278 }
279
280 if (strcasecmp("SUBSTR", type) == 0) {
281 talloc_free(type);
282 token->type = SCHEMA_SUBSTR;
283
284 token->value = get_def_value(ctx, &c);
285
286 c = skip_spaces(c);
287 *string = c;
288 return token;
289 }
290
291 if (strcasecmp("SYNTAX", type) == 0) {
292 talloc_free(type);
293 token->type = SCHEMA_SYNTAX;
294
295 token->value = get_def_value(ctx, &c);
296
297 c = skip_spaces(c);
298 *string = c;
299 return token;
300 }
301
302 if (strcasecmp("DESC", type) == 0) {
303 talloc_free(type);
304 token->type = SCHEMA_DESC;
305
306 token->value = get_def_value(ctx, &c);
307
308 c = skip_spaces(c);
309 *string = c;
310 return token;
311 }
312
313 token->type = SCHEMA_UNKNOWN;
314 token->value = type;
315 if (*c == ')') {
316 *string = c;
317 return token;
318 }
319 if (*c == '\'') {
320 c = strchr(++c, '\'');
321 c++;
322 } else {
323 c += strcspn(c, " \t\n");
324 }
325 c = skip_spaces(c);
326 *string = c;
327
328 return token;
329}
330
331static struct ldb_message *process_entry(TALLOC_CTX *mem_ctx, const char *entry)
332{
333 TALLOC_CTX *ctx;
334 struct ldb_message *msg;
335 struct schema_token *token;
336 char *c, *s;
337 int n;
338
339 ctx = talloc_new(mem_ctx);
340 msg = ldb_msg_new(ctx);
341
342 ldb_msg_add_string(msg, "objectClass", "top");
343
344 c = talloc_strdup(ctx, entry);
345 if (!c) return NULL;
346
347 c = skip_spaces(c);
348
349 switch (*c) {
350 case 'a':
351 if (strncmp(c, "attributetype", 13) == 0) {
352 c += 13;
353 MSG_ADD_STRING("objectClass", "attributeSchema");
354 break;
355 }
356 goto failed;
357 case 'o':
358 if (strncmp(c, "objectclass", 11) == 0) {
359 c += 11;
360 MSG_ADD_STRING("objectClass", "classSchema");
361 break;
362 }
363 goto failed;
364 default:
365 goto failed;
366 }
367
368 c = strchr(c, '(');
369 if (c == NULL) goto failed;
370 c++;
371
372 c = skip_spaces(c);
373
374 /* get attributeID */
375 n = strcspn(c, " \t");
376 s = talloc_strndup(msg, c, n);
377 MSG_ADD_STRING("attributeID", s);
378 c += n;
379 c = skip_spaces(c);
380
381 while (*c != ')') {
382 token = get_next_schema_token(msg, &c);
383 if (!token) goto failed;
384
385 switch (token->type) {
386 case SCHEMA_NAME:
387 MSG_ADD_STRING("cn", token->value);
388 MSG_ADD_STRING("name", token->value);
389 MSG_ADD_STRING("lDAPDisplayName", token->value);
390 msg->dn = ldb_dn_copy(msg, basedn);
391 ldb_dn_add_child_fmt(msg->dn, "CN=%s,CN=Schema,CN=Configuration", token->value);
392 break;
393
394 case SCHEMA_SUP:
395 MSG_ADD_M_STRING("subClassOf", token->value);
396 break;
397
398 case SCHEMA_STRUCTURAL:
399 MSG_ADD_STRING("objectClassCategory", "1");
400 break;
401
402 case SCHEMA_ABSTRACT:
403 MSG_ADD_STRING("objectClassCategory", "2");
404 break;
405
406 case SCHEMA_AUXILIARY:
407 MSG_ADD_STRING("objectClassCategory", "3");
408 break;
409
410 case SCHEMA_MUST:
411 MSG_ADD_M_STRING("mustContain", token->value);
412 break;
413
414 case SCHEMA_MAY:
415 MSG_ADD_M_STRING("mayContain", token->value);
416 break;
417
418 case SCHEMA_SINGLE_VALUE:
419 MSG_ADD_STRING("isSingleValued", "TRUE");
420 break;
421
422 case SCHEMA_EQUALITY:
423 /* TODO */
424 break;
425
426 case SCHEMA_ORDERING:
427 /* TODO */
428 break;
429
430 case SCHEMA_SUBSTR:
431 /* TODO */
432 break;
433
434 case SCHEMA_SYNTAX:
435 {
436 const struct dsdb_syntax *map =
437 find_syntax_map_by_standard_oid(token->value);
438 if (!map) {
439 break;
440 }
441 MSG_ADD_STRING("attributeSyntax", map->attributeSyntax_oid);
442 break;
443 }
444 case SCHEMA_DESC:
445 MSG_ADD_STRING("description", token->value);
446 break;
447
448 default:
449 fprintf(stderr, "Unknown Definition: %s\n", token->value);
450 }
451 }
452
453 talloc_steal(mem_ctx, msg);
454 talloc_free(ctx);
455 return msg;
456
457failed:
458 talloc_free(ctx);
459 return NULL;
460}
461
462static struct schema_conv process_file(FILE *in, FILE *out)
463{
464 TALLOC_CTX *ctx;
465 struct schema_conv ret;
466 char *entry;
467 int c, t, line;
468 struct ldb_ldif ldif;
469
470 ldif.changetype = LDB_CHANGETYPE_NONE;
471
472 ctx = talloc_new(NULL);
473
474 ret.count = 0;
475 ret.failures = 0;
476 line = 0;
477
478 while ((c = fgetc(in)) != EOF) {
479 line++;
480 /* fprintf(stderr, "Parsing line %d\n", line); */
481 if (c == '#') {
482 do {
483 c = fgetc(in);
484 } while (c != EOF && c != '\n');
485 continue;
486 }
487 if (c == '\n') {
488 continue;
489 }
490
491 t = 0;
492 entry = talloc_array(ctx, char, 1024);
493 if (entry == NULL) exit(-1);
494
495 do {
496 if (c == '\n') {
497 entry[t] = '\0';
498 if (check_braces(entry) == 0) {
499 ret.count++;
500 ldif.msg = process_entry(ctx, entry);
501 if (ldif.msg == NULL) {
502 ret.failures++;
503 fprintf(stderr, "No valid msg from entry \n[%s]\n at line %d\n", entry, line);
504 break;
505 }
506 ldb_ldif_write_file(ldb_ctx, out, &ldif);
507 break;
508 }
509 line++;
510 } else {
511 entry[t] = c;
512 t++;
513 }
514 if ((t % 1023) == 0) {
515 entry = talloc_realloc(ctx, entry, char, t + 1024);
516 if (entry == NULL) exit(-1);
517 }
518 } while ((c = fgetc(in)) != EOF);
519
520 if (c != '\n') {
521 entry[t] = '\0';
522 if (check_braces(entry) == 0) {
523 ret.count++;
524 ldif.msg = process_entry(ctx, entry);
525 if (ldif.msg == NULL) {
526 ret.failures++;
527 fprintf(stderr, "No valid msg from entry \n[%s]\n at line %d\n", entry, line);
528 break;
529 }
530 ldb_ldif_write_file(ldb_ctx, out, &ldif);
531 } else {
532 fprintf(stderr, "malformed entry on line %d\n", line);
533 ret.failures++;
534 }
535 }
536
537 if (c == EOF) break;
538 }
539
540 return ret;
541}
542
543static void usage(void)
544{
545 printf("Usage: oLschema2ldif -H NONE <options>\n");
546 printf("\nConvert OpenLDAP schema to AD-like LDIF format\n\n");
547 printf("Options:\n");
548 printf(" -I inputfile inputfile of OpenLDAP style schema otherwise STDIN\n");
549 printf(" -O outputfile outputfile otherwise STDOUT\n");
550 printf(" -o options pass options like modules to activate\n");
551 printf(" e.g: -o modules:timestamps\n");
552 printf("\n");
553 printf("Converts records from an openLdap formatted schema to an ldif schema\n\n");
554 exit(1);
555}
556
557 int main(int argc, const char **argv)
558{
559 TALLOC_CTX *ctx;
560 struct schema_conv ret;
561 struct ldb_cmdline *options;
562 FILE *in = stdin;
563 FILE *out = stdout;
564 ctx = talloc_new(NULL);
565 ldb_ctx = ldb_init(ctx, NULL);
566
567 setenv("LDB_URL", "NONE", 1);
568 options = ldb_cmdline_process(ldb_ctx, argc, argv, usage);
569
570 if (options->basedn == NULL) {
571 perror("Base DN not specified");
572 exit(1);
573 } else {
574 basedn = ldb_dn_new(ctx, ldb_ctx, options->basedn);
575 if ( ! ldb_dn_validate(basedn)) {
576 perror("Malformed Base DN");
577 exit(1);
578 }
579 }
580
581 if (options->input) {
582 in = fopen(options->input, "r");
583 if (!in) {
584 perror(options->input);
585 exit(1);
586 }
587 }
588 if (options->output) {
589 out = fopen(options->output, "w");
590 if (!out) {
591 perror(options->output);
592 exit(1);
593 }
594 }
595
596 ret = process_file(in, out);
597
598 fclose(in);
599 fclose(out);
600
601 printf("Converted %d records with %d failures\n", ret.count, ret.failures);
602
603 return 0;
604}
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