xref: /titanic_51/usr/src/lib/krb5/kadm5/kadm_rpc_xdr.c (revision 4a6ec905b96eb96a398c346f59e034a90ce8ad37)
1 /*
2  * Copyright 2006 Sun Microsystems, Inc.  All rights reserved.
3  * Use is subject to license terms.
4  */
5 
6 #pragma ident	"%Z%%M%	%I%	%E% SMI"
7 
8 /*
9  * WARNING WARNING WARNING WARNING WARNING WARNING WARNING WARNING WARNING
10  *
11  *	Openvision retains the copyright to derivative works of
12  *	this source code.  Do *NOT* create a derivative of this
13  *	source code before consulting with your legal department.
14  *	Do *NOT* integrate *ANY* of this source code into another
15  *	product before consulting with your legal department.
16  *
17  *	For further information, read the top-level Openvision
18  *	copyright which is contained in the top-level MIT Kerberos
19  *	copyright.
20  *
21  * WARNING WARNING WARNING WARNING WARNING WARNING WARNING WARNING WARNING
22  *
23  */
24 
25 
26 /*
27  * Copyright 1993 OpenVision Technologies, Inc., All Rights Reserved
28  */
29 
30 #include <rpc/rpc.h>
31 #include <krb5.h>
32 #include <k5-int.h>
33 #include <kadm5/admin.h>
34 #include <kadm5/kadm_rpc.h>
35 #include <stdlib.h>
36 #include <string.h>
37 
38 static bool_t
39 _xdr_kadm5_principal_ent_rec(XDR *xdrs, kadm5_principal_ent_rec *objp,
40 			     int v);
41 
42 bool_t
43 xdr_krb5_salttype(XDR *xdrs, krb5_int32 *objp); /* SUNWresync121 XXX */
44 /*
45  * Function: xdr_ui_4
46  *
47  * Purpose: XDR function which serves as a wrapper for xdr_u_int,
48  * to prevent compiler warnings about type clashes between u_int32
49  * and krb5_ui_4.
50  */
51 bool_t xdr_ui_4(XDR *xdrs, krb5_ui_4 *objp)
52 {
53   /* Assumes that krb5_ui_4 and u_int32 are both four bytes long.
54      This should not be a harmful assumption. */
55   return xdr_u_int(xdrs, (uint32_t *) objp);
56 }
57 
58 
59 /*
60  * Function: xdr_nullstring
61  *
62  * Purpose: XDR function for "strings" that are either NULL-terminated
63  * or NULL.
64  */
65 bool_t xdr_nullstring(XDR *xdrs, char **objp)
66 {
67      u_int size;
68 
69      if (xdrs->x_op == XDR_ENCODE) {
70 	  if (*objp == NULL)
71 	       size = 0;
72 	  else
73 	       size = strlen(*objp) + 1;
74      }
75      if (! xdr_u_int(xdrs, &size)) {
76 	  return FALSE;
77 	}
78      switch (xdrs->x_op) {
79      case XDR_DECODE:
80 	  if (size == 0) {
81 	       *objp = NULL;
82 	       return TRUE;
83 	  } else if (*objp == NULL) {
84 	       *objp = (char *) mem_alloc(size);
85 	       if (*objp == NULL) {
86 		    errno = ENOMEM;
87 		    return FALSE;
88 	       }
89 	  }
90 	  return (xdr_opaque(xdrs, *objp, size));
91 
92      case XDR_ENCODE:
93 	  if (size != 0)
94 	       return (xdr_opaque(xdrs, *objp, size));
95 	  return TRUE;
96 
97      case XDR_FREE:
98 	  if (*objp != NULL)
99 	       mem_free(*objp, size);
100 	  *objp = NULL;
101 	  return TRUE;
102      }
103 
104      return FALSE;
105 }
106 
107 /*
108  * Function: xdr_nulltype
109  *
110  * Purpose: XDR function for arbitrary pointer types that are either
111  * NULL or contain data.
112  */
113 bool_t xdr_nulltype(XDR *xdrs, void **objp, xdrproc_t proc)
114 {
115      bool_t null;
116 
117      switch (xdrs->x_op) {
118      case XDR_DECODE:
119 	  if (!xdr_bool(xdrs, &null))
120 	      return FALSE;
121 	  if (null) {
122 	       *objp = NULL;
123 	       return TRUE;
124 	  }
125 	  return (*proc)(xdrs, objp);
126 
127      case XDR_ENCODE:
128 	  if (*objp == NULL)
129 	       null = TRUE;
130 	  else
131 	       null = FALSE;
132 	  if (!xdr_bool(xdrs, &null))
133 	       return FALSE;
134 	  if (null == FALSE)
135 	       return (*proc)(xdrs, objp);
136 	  return TRUE;
137 
138      case XDR_FREE:
139 	  if (*objp)
140 	       return (*proc)(xdrs, objp);
141 	  return TRUE;
142      }
143 
144      return FALSE;
145 }
146 
147 bool_t
148 xdr_krb5_timestamp(XDR *xdrs, krb5_timestamp *objp)
149 {
150   /* This assumes that int32 and krb5_timestamp are the same size.
151      This shouldn't be a problem, since we've got a unit test which
152      checks for this. */
153 	if (!xdr_int(xdrs, (int32_t *) objp)) {
154 		return (FALSE);
155 	}
156 	return (TRUE);
157 }
158 
159 bool_t
160 xdr_krb5_kvno(XDR *xdrs, krb5_kvno *objp)
161 {
162 	unsigned char tmp;
163 
164 	tmp = '\0'; /* for purify, else xdr_u_char performs a umr */
165 
166 	if (xdrs->x_op == XDR_ENCODE)
167 		tmp = (unsigned char) *objp;
168 
169 	if (!xdr_u_char(xdrs, &tmp))
170 		return (FALSE);
171 
172 	if (xdrs->x_op == XDR_DECODE)
173 		*objp = (krb5_kvno) tmp;
174 
175 	return (TRUE);
176 }
177 
178 bool_t
179 xdr_krb5_deltat(XDR *xdrs, krb5_deltat *objp)
180 {
181   /* This assumes that int32 and krb5_deltat are the same size.
182      This shouldn't be a problem, since we've got a unit test which
183      checks for this. */
184 	if (!xdr_int(xdrs, (int32_t *) objp)) {
185 		return (FALSE);
186 	}
187 	return (TRUE);
188 }
189 
190 bool_t
191 xdr_krb5_flags(XDR *xdrs, krb5_flags *objp)
192 {
193   /* This assumes that int32 and krb5_flags are the same size.
194      This shouldn't be a problem, since we've got a unit test which
195      checks for this. */
196 	if (!xdr_int(xdrs, (int32_t *) objp)) {
197 		return (FALSE);
198 	}
199 	return (TRUE);
200 }
201 
202 bool_t
203 xdr_krb5_ui_4(XDR *xdrs, krb5_ui_4 *objp)
204 {
205 	if (!xdr_u_int(xdrs, (uint32_t *) objp)) {
206 		return (FALSE);
207 	}
208 	return (TRUE);
209 }
210 
211 bool_t
212 xdr_krb5_int16(XDR *xdrs, krb5_int16 *objp)
213 {
214     int tmp;
215 
216     tmp = (int) *objp;
217 
218     if (!xdr_int(xdrs, &tmp))
219 	return(FALSE);
220 
221     *objp = (krb5_int16) tmp;
222 
223     return(TRUE);
224 }
225 
226 /*
227  * Function: xdr_krb5_ui_2
228  *
229  * Purpose: XDR function which serves as a wrapper for xdr_u_int,
230  * to prevent compiler warnings about type clashes between u_int
231  * and krb5_ui_2.
232  */
233 bool_t
234 xdr_krb5_ui_2(XDR *xdrs, krb5_ui_2 *objp)
235 {
236     unsigned int tmp;
237 
238     tmp = (unsigned int) *objp;
239 
240     if (!xdr_u_int(xdrs, &tmp))
241 	return(FALSE);
242 
243     *objp = (krb5_ui_2) tmp;
244 
245     return(TRUE);
246 }
247 
248 
249 
250 bool_t xdr_krb5_key_data_nocontents(XDR *xdrs, krb5_key_data *objp)
251 {
252      /*
253       * Note that this function intentionally DOES NOT tranfer key
254       * length or contents!  xdr_krb5_key_data in adb_xdr.c does, but
255       * that is only for use within the server-side library.
256       */
257      unsigned int tmp;
258 
259      if (xdrs->x_op == XDR_DECODE)
260 	  memset((char *) objp, 0, sizeof(krb5_key_data));
261 
262      if (!xdr_krb5_int16(xdrs, &objp->key_data_ver)) {
263 	  return (FALSE);
264      }
265      if (!xdr_krb5_int16(xdrs, &objp->key_data_kvno)) {
266 	  return (FALSE);
267      }
268      if (!xdr_krb5_int16(xdrs, &objp->key_data_type[0])) {
269 	  return (FALSE);
270      }
271      if (objp->key_data_ver > 1) {
272 	  if (!xdr_krb5_int16(xdrs, &objp->key_data_type[1])) {
273 	       return (FALSE);
274 	  }
275      }
276      /*
277       * kadm5_get_principal on the server side allocates and returns
278       * key contents when asked.  Even though this function refuses to
279       * transmit that data, it still has to *free* the data at the
280       * appropriate time to avoid a memory leak.
281       */
282      if (xdrs->x_op == XDR_FREE) {
283 	  tmp = (unsigned int) objp->key_data_length[0];
284 	  if (!xdr_bytes(xdrs, (char **) &objp->key_data_contents[0],
285 			 &tmp, ~0))
286 	       return FALSE;
287 
288 	  tmp = (unsigned int) objp->key_data_length[1];
289 	  if (!xdr_bytes(xdrs, (char **) &objp->key_data_contents[1],
290 			 &tmp, ~0))
291 	       return FALSE;
292      }
293 
294      return (TRUE);
295 }
296 
297 
298 bool_t
299 xdr_krb5_key_salt_tuple(XDR *xdrs, krb5_key_salt_tuple *objp)
300 {
301     if (!xdr_krb5_enctype(xdrs, &objp->ks_enctype))
302 	return FALSE;
303     if (!xdr_krb5_salttype(xdrs, &objp->ks_salttype))
304 	return FALSE;
305     return TRUE;
306 }
307 
308 bool_t xdr_krb5_tl_data(XDR *xdrs, krb5_tl_data **tl_data_head)
309 {
310      krb5_tl_data *tl, *tl2;
311      bool_t more;
312      unsigned int len;
313 
314      switch (xdrs->x_op) {
315      case XDR_FREE:
316 	  tl = tl2 = *tl_data_head;
317 	  while (tl) {
318 	       tl2 = tl->tl_data_next;
319 	       free(tl->tl_data_contents);
320 	       free(tl);
321 	       tl = tl2;
322 	  }
323 	  break;
324 
325      case XDR_ENCODE:
326 	  tl = *tl_data_head;
327 	  while (1) {
328 	       more = (tl != NULL);
329 	       if (!xdr_bool(xdrs, &more))
330 		    return FALSE;
331 	       if (tl == NULL)
332 		    break;
333 	       if (!xdr_krb5_int16(xdrs, &tl->tl_data_type))
334 		    return FALSE;
335 	       len = tl->tl_data_length;
336 	       if (!xdr_bytes(xdrs, (char **) &tl->tl_data_contents, &len, ~0))
337 		    return FALSE;
338 	       tl = tl->tl_data_next;
339 	  }
340 	  break;
341 
342      case XDR_DECODE:
343 	  tl = NULL;
344 	  while (1) {
345 	       if (!xdr_bool(xdrs, &more))
346 		    return FALSE;
347 	       if (more == FALSE)
348 		    break;
349 	       tl2 = (krb5_tl_data *) malloc(sizeof(krb5_tl_data));
350 	       if (tl2 == NULL)
351 		    return FALSE;
352 	       memset((char *) tl2, 0, sizeof(krb5_tl_data));
353 	       if (!xdr_krb5_int16(xdrs, &tl2->tl_data_type))
354 		    return FALSE;
355 	       if (!xdr_bytes(xdrs, (char **)&tl2->tl_data_contents, &len, ~0))
356 		    return FALSE;
357 	       tl2->tl_data_length = len;
358 
359 	       tl2->tl_data_next = tl;
360 	       tl = tl2;
361 	  }
362 
363 	  *tl_data_head = tl;
364 	  break;
365      }
366 
367      return TRUE;
368 }
369 
370 bool_t
371 xdr_kadm5_ret_t(XDR *xdrs, kadm5_ret_t *objp)
372 {
373 	uint32_t tmp;
374 
375 	if (xdrs->x_op == XDR_ENCODE)
376 		tmp = (uint32_t) *objp;
377 
378 	if (!xdr_u_int(xdrs, &tmp))
379 		return (FALSE);
380 
381 	if (xdrs->x_op == XDR_DECODE)
382 		*objp = (kadm5_ret_t) tmp;
383 
384 	return (TRUE);
385 }
386 
387 bool_t xdr_kadm5_principal_ent_rec_v1(XDR *xdrs,
388 				      kadm5_principal_ent_rec *objp)
389 {
390      return _xdr_kadm5_principal_ent_rec(xdrs, objp, KADM5_API_VERSION_1);
391 }
392 
393 bool_t xdr_kadm5_principal_ent_rec(XDR *xdrs,
394 				   kadm5_principal_ent_rec *objp)
395 {
396      return _xdr_kadm5_principal_ent_rec(xdrs, objp, KADM5_API_VERSION_2);
397 }
398 
399 static bool_t
400 _xdr_kadm5_principal_ent_rec(XDR *xdrs, kadm5_principal_ent_rec *objp,
401 			     int v)
402 {
403      unsigned int n;
404 
405 	if (!xdr_krb5_principal(xdrs, &objp->principal)) {
406 		return (FALSE);
407 	}
408 	if (!xdr_krb5_timestamp(xdrs, &objp->princ_expire_time)) {
409 		return (FALSE);
410 	}
411 	if (!xdr_krb5_timestamp(xdrs, &objp->last_pwd_change)) {
412 		return (FALSE);
413 	}
414 	if (!xdr_krb5_timestamp(xdrs, &objp->pw_expiration)) {
415 		return (FALSE);
416 	}
417 	if (!xdr_krb5_deltat(xdrs, &objp->max_life)) {
418 		return (FALSE);
419 	}
420         if (v == KADM5_API_VERSION_1) {
421 	     if (!xdr_krb5_principal(xdrs, &objp->mod_name)) {
422 		  return (FALSE);
423 	     }
424 	} else {
425 	     if (!xdr_nulltype(xdrs, (void **) &objp->mod_name,
426 			       xdr_krb5_principal)) {
427 		  return (FALSE);
428 	     }
429 	}
430 	if (!xdr_krb5_timestamp(xdrs, &objp->mod_date)) {
431 		return (FALSE);
432 	}
433 	if (!xdr_krb5_flags(xdrs, &objp->attributes)) {
434 		return (FALSE);
435 	}
436 	if (!xdr_krb5_kvno(xdrs, &objp->kvno)) {
437 		return (FALSE);
438 	}
439 	if (!xdr_krb5_kvno(xdrs, &objp->mkvno)) {
440 		return (FALSE);
441 	}
442 	if (!xdr_nullstring(xdrs, &objp->policy)) {
443 		return (FALSE);
444 	}
445 	if (!xdr_long(xdrs, &objp->aux_attributes)) {
446 		return (FALSE);
447 	}
448 	if (v != KADM5_API_VERSION_1) {
449 	     if (!xdr_krb5_deltat(xdrs, &objp->max_renewable_life)) {
450 		  return (FALSE);
451 	     }
452 	     if (!xdr_krb5_timestamp(xdrs, &objp->last_success)) {
453 		  return (FALSE);
454 	     }
455 	     if (!xdr_krb5_timestamp(xdrs, &objp->last_failed)) {
456 		  return (FALSE);
457 	     }
458 	     if (!xdr_krb5_kvno(xdrs, &objp->fail_auth_count)) {
459 		  return (FALSE);
460 	     }
461 	     if (!xdr_krb5_int16(xdrs, &objp->n_key_data)) {
462 		  return (FALSE);
463 	     }
464 	     if (!xdr_krb5_int16(xdrs, &objp->n_tl_data)) {
465 		  return (FALSE);
466 	     }
467 	     if (!xdr_nulltype(xdrs, (void **) &objp->tl_data,
468 			       xdr_krb5_tl_data)) {
469 		  return FALSE;
470 	     }
471 	     n = objp->n_key_data;
472 	     if (!xdr_array(xdrs, (caddr_t *) &objp->key_data,
473 			    &n, ~0, sizeof(krb5_key_data),
474 			    xdr_krb5_key_data_nocontents)) {
475 		  return (FALSE);
476 	     }
477 	}
478 	return (TRUE);
479 }
480 
481 bool_t
482 xdr_kadm5_policy_ent_rec(XDR *xdrs, kadm5_policy_ent_rec *objp)
483 {
484 	if (!xdr_nullstring(xdrs, &objp->policy)) {
485 		return (FALSE);
486 	}
487 	/* these all used to be u_int32, but it's stupid for sized types
488 	   to be exposed at the api, and they're the same as longs on the
489 	   wire. */
490 	if (!xdr_long(xdrs, &objp->pw_min_life)) {
491 		return (FALSE);
492 	}
493 	if (!xdr_long(xdrs, &objp->pw_max_life)) {
494 		return (FALSE);
495 	}
496 	if (!xdr_long(xdrs, &objp->pw_min_length)) {
497 		return (FALSE);
498 	}
499 	if (!xdr_long(xdrs, &objp->pw_min_classes)) {
500 		return (FALSE);
501 	}
502 	if (!xdr_long(xdrs, &objp->pw_history_num)) {
503 		return (FALSE);
504 	}
505 	if (!xdr_long(xdrs, &objp->policy_refcnt)) {
506 		return (FALSE);
507 	}
508 	return (TRUE);
509 }
510 
511 bool_t
512 xdr_cprinc_arg(XDR *xdrs, cprinc_arg *objp)
513 {
514 	if (!xdr_ui_4(xdrs, &objp->api_version)) {
515 		return (FALSE);
516 	}
517 	if (objp->api_version == KADM5_API_VERSION_1) {
518 	     if (!xdr_kadm5_principal_ent_rec_v1(xdrs, &objp->rec)) {
519 		  return (FALSE);
520 	     }
521 	} else {
522 	     if (!xdr_kadm5_principal_ent_rec(xdrs, &objp->rec)) {
523 		  return (FALSE);
524 	     }
525 	}
526 	if (!xdr_long(xdrs, &objp->mask)) {
527 		return (FALSE);
528 	}
529 	if (!xdr_nullstring(xdrs, &objp->passwd)) {
530 		return (FALSE);
531 	}
532 	return (TRUE);
533 }
534 
535 bool_t
536 xdr_cprinc3_arg(XDR *xdrs, cprinc3_arg *objp)
537 {
538 	if (!xdr_ui_4(xdrs, &objp->api_version)) {
539 		return (FALSE);
540 	}
541 	if (objp->api_version == KADM5_API_VERSION_1) {
542 		if (!xdr_kadm5_principal_ent_rec_v1(xdrs, &objp->rec)) {
543 			return (FALSE);
544 		}
545 	} else {
546 		if (!xdr_kadm5_principal_ent_rec(xdrs, &objp->rec)) {
547 			return (FALSE);
548 		}
549 	}
550 	if (!xdr_long(xdrs, &objp->mask)) {
551 		return (FALSE);
552 	}
553 	if (!xdr_array(xdrs, (caddr_t *)&objp->ks_tuple,
554 		       (unsigned int *)&objp->n_ks_tuple, ~0,
555 		       sizeof(krb5_key_salt_tuple),
556 		       xdr_krb5_key_salt_tuple)) {
557 		return (FALSE);
558 	}
559 	if (!xdr_nullstring(xdrs, &objp->passwd)) {
560 		return (FALSE);
561 	}
562 	return (TRUE);
563 }
564 
565 bool_t
566 xdr_generic_ret(XDR *xdrs, generic_ret *objp)
567 {
568 	if (!xdr_ui_4(xdrs, &objp->api_version)) {
569 		return (FALSE);
570 	}
571 	if (!xdr_kadm5_ret_t(xdrs, &objp->code)) {
572 		return (FALSE);
573 	}
574 	return(TRUE);
575 }
576 
577 bool_t
578 xdr_dprinc_arg(XDR *xdrs, dprinc_arg *objp)
579 {
580 	if (!xdr_ui_4(xdrs, &objp->api_version)) {
581 		return (FALSE);
582 	}
583 	if (!xdr_krb5_principal(xdrs, &objp->princ)) {
584 		return (FALSE);
585 	}
586 	return (TRUE);
587 }
588 
589 bool_t
590 xdr_mprinc_arg(XDR *xdrs, mprinc_arg *objp)
591 {
592 	if (!xdr_ui_4(xdrs, &objp->api_version)) {
593 		return (FALSE);
594 	}
595 	if (objp->api_version == KADM5_API_VERSION_1) {
596 	     if (!xdr_kadm5_principal_ent_rec_v1(xdrs, &objp->rec)) {
597 		  return (FALSE);
598 	     }
599 	} else {
600 	     if (!xdr_kadm5_principal_ent_rec(xdrs, &objp->rec)) {
601 		  return (FALSE);
602 	     }
603 	}
604 	if (!xdr_long(xdrs, &objp->mask)) {
605 		return (FALSE);
606 	}
607 	return (TRUE);
608 }
609 
610 bool_t
611 xdr_rprinc_arg(XDR *xdrs, rprinc_arg *objp)
612 {
613 	if (!xdr_ui_4(xdrs, &objp->api_version)) {
614 		return (FALSE);
615 	}
616 	if (!xdr_krb5_principal(xdrs, &objp->src)) {
617 		return (FALSE);
618 	}
619 	if (!xdr_krb5_principal(xdrs, &objp->dest)) {
620 		return (FALSE);
621 	}
622 	return (TRUE);
623 }
624 
625 bool_t
626 xdr_gprincs_arg(XDR *xdrs, gprincs_arg *objp)
627 {
628      if (!xdr_ui_4(xdrs, &objp->api_version)) {
629 	  return (FALSE);
630      }
631      if (!xdr_nullstring(xdrs, &objp->exp)) {
632 	  return (FALSE);
633      }
634      return (TRUE);
635 }
636 
637 bool_t
638 xdr_gprincs_ret(XDR *xdrs, gprincs_ret *objp)
639 {
640      if (!xdr_ui_4(xdrs, &objp->api_version)) {
641 	  return (FALSE);
642      }
643      if (!xdr_kadm5_ret_t(xdrs, &objp->code)) {
644 	  return (FALSE);
645      }
646      if (objp->code == KADM5_OK) {
647 	  if (!xdr_int(xdrs, &objp->count)) {
648 	       return (FALSE);
649 	  }
650 	  if (!xdr_array(xdrs, (caddr_t *) &objp->princs,
651 			 (unsigned int *) &objp->count, ~0,
652 			 sizeof(char *), xdr_nullstring)) {
653 	       return (FALSE);
654 	  }
655      }
656      return (TRUE);
657 }
658 
659 bool_t
660 xdr_chpass_arg(XDR *xdrs, chpass_arg *objp)
661 {
662 	if (!xdr_ui_4(xdrs, &objp->api_version)) {
663 		return (FALSE);
664 	}
665 	if (!xdr_krb5_principal(xdrs, &objp->princ)) {
666 		return (FALSE);
667 	}
668 	if (!xdr_nullstring(xdrs, &objp->pass)) {
669 		return (FALSE);
670 	}
671 	return (TRUE);
672 }
673 
674 bool_t
675 xdr_chpass3_arg(XDR *xdrs, chpass3_arg *objp)
676 {
677 	if (!xdr_ui_4(xdrs, &objp->api_version)) {
678 		return (FALSE);
679 	}
680 	if (!xdr_krb5_principal(xdrs, &objp->princ)) {
681 		return (FALSE);
682 	}
683 	if (!xdr_bool(xdrs, (bool_t *) &objp->keepold)) { /* SUNWresync121 XXX */
684 		return (FALSE);
685 	}
686 	if (!xdr_array(xdrs, (caddr_t *)&objp->ks_tuple,
687 		       (unsigned int*)&objp->n_ks_tuple, ~0,
688 		       sizeof(krb5_key_salt_tuple),
689 		       xdr_krb5_key_salt_tuple)) {
690 		return (FALSE);
691 	}
692 	if (!xdr_nullstring(xdrs, &objp->pass)) {
693 		return (FALSE);
694 	}
695 	return (TRUE);
696 }
697 
698 bool_t
699 xdr_setv4key_arg(XDR *xdrs, setv4key_arg *objp)
700 {
701 	unsigned int n_keys = 1;
702 
703 	if (!xdr_ui_4(xdrs, &objp->api_version)) {
704 		return (FALSE);
705 	}
706 	if (!xdr_krb5_principal(xdrs, &objp->princ)) {
707 		return (FALSE);
708 	}
709 	if (!xdr_array(xdrs, (caddr_t *) &objp->keyblock,
710 		       &n_keys, ~0,
711 		       sizeof(krb5_keyblock), xdr_krb5_keyblock)) {
712 	        return (FALSE);
713 	}
714 	return (TRUE);
715 }
716 
717 bool_t
718 xdr_setkey_arg(XDR *xdrs, setkey_arg *objp)
719 {
720 	if (!xdr_ui_4(xdrs, &objp->api_version)) {
721 		return (FALSE);
722 	}
723 	if (!xdr_krb5_principal(xdrs, &objp->princ)) {
724 		return (FALSE);
725 	}
726 	if (!xdr_array(xdrs, (caddr_t *) &objp->keyblocks,
727 		       (unsigned int *) &objp->n_keys, ~0,
728 		       sizeof(krb5_keyblock), xdr_krb5_keyblock)) {
729 	        return (FALSE);
730 	}
731 	return (TRUE);
732 }
733 
734 bool_t
735 xdr_setkey3_arg(XDR *xdrs, setkey3_arg *objp)
736 {
737 	if (!xdr_ui_4(xdrs, &objp->api_version)) {
738 		return (FALSE);
739 	}
740 	if (!xdr_krb5_principal(xdrs, &objp->princ)) {
741 		return (FALSE);
742 	}
743 	if (!xdr_bool(xdrs, (bool_t *) &objp->keepold)) { /* SUNWresync121 XXX */
744 		return (FALSE);
745 	}
746 	if (!xdr_array(xdrs, (caddr_t *) &objp->ks_tuple,
747 		       (unsigned int *) &objp->n_ks_tuple, ~0,
748 		       sizeof(krb5_key_salt_tuple), xdr_krb5_key_salt_tuple)) {
749 		return (FALSE);
750 	}
751 	if (!xdr_array(xdrs, (caddr_t *) &objp->keyblocks,
752 		       (unsigned int *) &objp->n_keys, ~0,
753 		       sizeof(krb5_keyblock), xdr_krb5_keyblock)) {
754 		return (FALSE);
755 	}
756 	return (TRUE);
757 }
758 
759 bool_t
760 xdr_chrand_arg(XDR *xdrs, chrand_arg *objp)
761 {
762 	if (!xdr_ui_4(xdrs, &objp->api_version)) {
763 		return (FALSE);
764 	}
765 	if (!xdr_krb5_principal(xdrs, &objp->princ)) {
766 		return (FALSE);
767 	}
768 	return (TRUE);
769 }
770 
771 bool_t
772 xdr_chrand3_arg(XDR *xdrs, chrand3_arg *objp)
773 {
774 	if (!xdr_ui_4(xdrs, &objp->api_version)) {
775 		return (FALSE);
776 	}
777 	if (!xdr_krb5_principal(xdrs, &objp->princ)) {
778 		return (FALSE);
779 	}
780 	if (!xdr_bool(xdrs, (bool_t *) &objp->keepold)) { /* SUNWresync121 XXX */
781 		return (FALSE);
782 	}
783 	if (!xdr_array(xdrs, (caddr_t *)&objp->ks_tuple,
784 		       (unsigned int*)&objp->n_ks_tuple, ~0,
785 		       sizeof(krb5_key_salt_tuple),
786 		       xdr_krb5_key_salt_tuple)) {
787 		return (FALSE);
788 	}
789 	return (TRUE);
790 }
791 
792 bool_t
793 xdr_chrand_ret(XDR *xdrs, chrand_ret *objp)
794 {
795 	if (!xdr_ui_4(xdrs, &objp->api_version)) {
796 		return (FALSE);
797 	}
798 	if (!xdr_kadm5_ret_t(xdrs, &objp->code)) {
799 		return (FALSE);
800 	}
801 	if (objp->api_version == KADM5_API_VERSION_1) {
802 	     if(objp->code == KADM5_OK) {
803 		  if (!xdr_krb5_keyblock(xdrs, &objp->key)) {
804 		       return (FALSE);
805 		  }
806 	     }
807 	} else {
808 	     if (objp->code == KADM5_OK) {
809 		  if (!xdr_array(xdrs, (char **)&objp->keys, (unsigned int *)&objp->n_keys, ~0,
810 				 sizeof(krb5_keyblock),
811 				 xdr_krb5_keyblock))
812 		       return FALSE;
813 	     }
814 	}
815 
816 	return (TRUE);
817 }
818 
819 bool_t
820 xdr_gprinc_arg(XDR *xdrs, gprinc_arg *objp)
821 {
822 	if (!xdr_ui_4(xdrs, &objp->api_version)) {
823 		return (FALSE);
824 	}
825 	if (!xdr_krb5_principal(xdrs, &objp->princ)) {
826 		return (FALSE);
827 	}
828 	if ((objp->api_version > KADM5_API_VERSION_1) &&
829 	    !xdr_long(xdrs, &objp->mask)) {
830 	     return FALSE;
831 	}
832 
833 	return (TRUE);
834 }
835 
836 bool_t
837 xdr_gprinc_ret(XDR *xdrs, gprinc_ret *objp)
838 {
839 	if (!xdr_ui_4(xdrs, &objp->api_version)) {
840 		return (FALSE);
841 	}
842 	if (!xdr_kadm5_ret_t(xdrs, &objp->code)) {
843 		return (FALSE);
844 	}
845 	if(objp->code == KADM5_OK)  {
846 	     if (objp->api_version == KADM5_API_VERSION_1) {
847 		  if (!xdr_kadm5_principal_ent_rec_v1(xdrs, &objp->rec)) {
848 		       return (FALSE);
849 		  }
850 	     } else {
851 		  if (!xdr_kadm5_principal_ent_rec(xdrs, &objp->rec)) {
852 		       return (FALSE);
853 		  }
854 	     }
855 	}
856 	return (TRUE);
857 }
858 
859 bool_t
860 xdr_cpol_arg(XDR *xdrs, cpol_arg *objp)
861 {
862 	if (!xdr_ui_4(xdrs, &objp->api_version)) {
863 		return (FALSE);
864 	}
865 	if (!xdr_kadm5_policy_ent_rec(xdrs, &objp->rec)) {
866 		return (FALSE);
867 	}
868 	if (!xdr_long(xdrs, &objp->mask)) {
869 		return (FALSE);
870 	}
871 	return (TRUE);
872 }
873 
874 bool_t
875 xdr_dpol_arg(XDR *xdrs, dpol_arg *objp)
876 {
877 	if (!xdr_ui_4(xdrs, &objp->api_version)) {
878 		return (FALSE);
879 	}
880 	if (!xdr_nullstring(xdrs, &objp->name)) {
881 		return (FALSE);
882 	}
883 	return (TRUE);
884 }
885 
886 bool_t
887 xdr_mpol_arg(XDR *xdrs, mpol_arg *objp)
888 {
889 	if (!xdr_ui_4(xdrs, &objp->api_version)) {
890 		return (FALSE);
891 	}
892 	if (!xdr_kadm5_policy_ent_rec(xdrs, &objp->rec)) {
893 		return (FALSE);
894 	}
895 	if (!xdr_long(xdrs, &objp->mask)) {
896 		return (FALSE);
897 	}
898 	return (TRUE);
899 }
900 
901 bool_t
902 xdr_gpol_arg(XDR *xdrs, gpol_arg *objp)
903 {
904 	if (!xdr_ui_4(xdrs, &objp->api_version)) {
905 		return (FALSE);
906 	}
907 	if (!xdr_nullstring(xdrs, &objp->name)) {
908 		return (FALSE);
909 	}
910 	return (TRUE);
911 }
912 
913 bool_t
914 xdr_gpol_ret(XDR *xdrs, gpol_ret *objp)
915 {
916 	if (!xdr_ui_4(xdrs, &objp->api_version)) {
917 		return (FALSE);
918 	}
919 	if (!xdr_kadm5_ret_t(xdrs, &objp->code)) {
920 		return (FALSE);
921 	}
922 	if(objp->code == KADM5_OK) {
923 	    if (!xdr_kadm5_policy_ent_rec(xdrs, &objp->rec))
924 		return (FALSE);
925 	}
926 	return (TRUE);
927 }
928 
929 bool_t
930 xdr_gpols_arg(XDR *xdrs, gpols_arg *objp)
931 {
932      if (!xdr_ui_4(xdrs, &objp->api_version)) {
933 	  return (FALSE);
934      }
935      if (!xdr_nullstring(xdrs, &objp->exp)) {
936 	  return (FALSE);
937      }
938      return (TRUE);
939 }
940 
941 bool_t
942 xdr_gpols_ret(XDR *xdrs, gpols_ret *objp)
943 {
944      if (!xdr_ui_4(xdrs, &objp->api_version)) {
945 	  return (FALSE);
946      }
947      if (!xdr_kadm5_ret_t(xdrs, &objp->code)) {
948 	  return (FALSE);
949      }
950      if (objp->code == KADM5_OK) {
951 	  if (!xdr_int(xdrs, &objp->count)) {
952 	       return (FALSE);
953 	  }
954 	  if (!xdr_array(xdrs, (caddr_t *) &objp->pols,
955 			 (unsigned int *) &objp->count, ~0,
956 			 sizeof(char *), xdr_nullstring)) {
957 	       return (FALSE);
958 	  }
959      }
960      return (TRUE);
961 }
962 
963 bool_t xdr_getprivs_ret(XDR *xdrs, getprivs_ret *objp)
964 {
965 	if (!xdr_ui_4(xdrs, &objp->api_version)) {
966 		return (FALSE);
967 	}
968      if (! xdr_kadm5_ret_t(xdrs, &objp->code) ||
969 	 ! xdr_long(xdrs, &objp->privs))
970 	  return FALSE;
971      return TRUE;
972 }
973 
974 bool_t
975 xdr_krb5_principal(XDR *xdrs, krb5_principal *objp)
976 {
977     int	    ret;
978     char	    *p = NULL;
979     krb5_principal  pr = NULL;
980     static krb5_context context = NULL;
981 
982     /* using a static context here is ugly, but should work
983        ok, and the other solutions are even uglier */
984 
985     if (!context &&
986 	krb5_init_context(&context))
987        return(FALSE);
988 
989     switch(xdrs->x_op) {
990     case XDR_ENCODE:
991 	if (*objp) {
992 	     if((ret = krb5_unparse_name(context, *objp, &p)) != 0)
993 		  return FALSE;
994 	}
995 	if(!xdr_nullstring(xdrs, &p))
996 	    return FALSE;
997 	if (p) free(p);
998 	break;
999     case XDR_DECODE:
1000 	if(!xdr_nullstring(xdrs, &p))
1001 	    return FALSE;
1002 	if (p) {
1003 	     ret = krb5_parse_name(context, p, &pr);
1004 	     if(ret != 0)
1005 		  return FALSE;
1006 	     *objp = pr;
1007 	     free(p);
1008 	} else
1009 	     *objp = NULL;
1010 	break;
1011     case XDR_FREE:
1012 	if(*objp != NULL)
1013 	    krb5_free_principal(context, *objp);
1014 	break;
1015     }
1016     return TRUE;
1017 }
1018 
1019 bool_t
1020 xdr_krb5_octet(XDR *xdrs, krb5_octet *objp)
1021 {
1022    if (!xdr_u_char(xdrs, objp))
1023 	return (FALSE);
1024    return (TRUE);
1025 }
1026 
1027 bool_t
1028 xdr_krb5_enctype(XDR *xdrs, krb5_enctype *objp)
1029 {
1030    /*
1031     * This used to be xdr_krb5_keytype, but keytypes and enctypes have
1032     * been merged into only enctypes.  However, randkey_principal
1033     * already ensures that only a key of ENCTYPE_DES_CBC_CRC will be
1034     * returned to v1 clients, and ENCTYPE_DES_CBC_CRC has the same
1035     * value as KEYTYPE_DES used too, which is what all v1 clients
1036     * expect.  Therefore, IMHO, just encoding whatever enctype we get
1037     * is safe.
1038     */
1039 
1040    if (!xdr_u_int(xdrs, (unsigned int *) objp))
1041 	return (FALSE);
1042    return (TRUE);
1043 }
1044 
1045 bool_t
1046 xdr_krb5_salttype(XDR *xdrs, krb5_int32 *objp)
1047 {
1048     if (!xdr_int(xdrs, (int32_t *) objp)) /* SUNWresync121 XXX */
1049 	return FALSE;
1050     return TRUE;
1051 }
1052 
1053 bool_t
1054 xdr_krb5_keyblock(XDR *xdrs, krb5_keyblock *objp)
1055 {
1056    /* XXX This only works because free_keyblock assumes ->contents
1057       is allocated by malloc() */
1058 
1059    if(!xdr_krb5_enctype(xdrs, &objp->enctype))
1060       return FALSE;
1061    if(!xdr_bytes(xdrs, (char **) &objp->contents, (unsigned int *)
1062 		 &objp->length, ~0))
1063       return FALSE;
1064    return TRUE;
1065 }
1066