xref: /titanic_41/usr/src/lib/krb5/kadm5/kadm_rpc_xdr.c (revision 70025d765b044c6d8594bb965a2247a61e991a99)
1 /*
2  * Copyright 2002 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, (rpc_u_int32 *) 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, (rpc_int32 *) 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, (rpc_int32 *) 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, (rpc_int32 *) 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, (rpc_u_int32 *) 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 bool_t xdr_krb5_key_data_nocontents(XDR *xdrs, krb5_key_data *objp)
227 {
228      /*
229       * Note that this function intentionally DOES NOT tranfer key
230       * length or contents!  xdr_krb5_key_data in adb_xdr.c does, but
231       * that is only for use within the server-side library.
232       */
233      unsigned int tmp;
234 
235      if (xdrs->x_op == XDR_DECODE)
236 	  memset((char *) objp, 0, sizeof(krb5_key_data));
237 
238      if (!xdr_krb5_int16(xdrs, &objp->key_data_ver)) {
239 	  return (FALSE);
240      }
241      if (!xdr_krb5_int16(xdrs, &objp->key_data_kvno)) {
242 	  return (FALSE);
243      }
244      if (!xdr_krb5_int16(xdrs, &objp->key_data_type[0])) {
245 	  return (FALSE);
246      }
247      if (objp->key_data_ver > 1) {
248 	  if (!xdr_krb5_int16(xdrs, &objp->key_data_type[1])) {
249 	       return (FALSE);
250 	  }
251      }
252      /*
253       * kadm5_get_principal on the server side allocates and returns
254       * key contents when asked.  Even though this function refuses to
255       * transmit that data, it still has to *free* the data at the
256       * appropriate time to avoid a memory leak.
257       */
258      if (xdrs->x_op == XDR_FREE) {
259 	  tmp = (unsigned int) objp->key_data_length[0];
260 	  if (!xdr_bytes(xdrs, (char **) &objp->key_data_contents[0],
261 			 &tmp, ~0))
262 	       return FALSE;
263 
264 	  tmp = (unsigned int) objp->key_data_length[1];
265 	  if (!xdr_bytes(xdrs, (char **) &objp->key_data_contents[1],
266 			 &tmp, ~0))
267 	       return FALSE;
268      }
269 
270      return (TRUE);
271 }
272 
273 
274 bool_t
275 xdr_krb5_key_salt_tuple(XDR *xdrs, krb5_key_salt_tuple *objp)
276 {
277     if (!xdr_krb5_enctype(xdrs, &objp->ks_enctype))
278 	return FALSE;
279     if (!xdr_krb5_salttype(xdrs, &objp->ks_salttype))
280 	return FALSE;
281     return TRUE;
282 }
283 
284 bool_t xdr_krb5_tl_data(XDR *xdrs, krb5_tl_data **tl_data_head)
285 {
286      krb5_tl_data *tl, *tl2;
287      bool_t more;
288      uint len;
289 
290      switch (xdrs->x_op) {
291      case XDR_FREE:
292 	  tl = tl2 = *tl_data_head;
293 	  while (tl) {
294 	       tl2 = tl->tl_data_next;
295 	       free(tl->tl_data_contents);
296 	       free(tl);
297 	       tl = tl2;
298 	  }
299 	  break;
300 
301      case XDR_ENCODE:
302 	  tl = *tl_data_head;
303 	  while (1) {
304 	       more = (tl != NULL);
305 	       if (!xdr_bool(xdrs, &more))
306 		    return FALSE;
307 	       if (tl == NULL)
308 		    break;
309 	       if (!xdr_krb5_int16(xdrs, &tl->tl_data_type))
310 		    return FALSE;
311 	       len = tl->tl_data_length;
312 	       if (!xdr_bytes(xdrs, (char **) &tl->tl_data_contents, &len, ~0))
313 		    return FALSE;
314 	       tl = tl->tl_data_next;
315 	  }
316 	  break;
317 
318      case XDR_DECODE:
319 	  tl = NULL;
320 	  while (1) {
321 	       if (!xdr_bool(xdrs, &more))
322 		    return FALSE;
323 	       if (more == FALSE)
324 		    break;
325 	       tl2 = (krb5_tl_data *) malloc(sizeof(krb5_tl_data));
326 	       if (tl2 == NULL)
327 		    return FALSE;
328 	       memset((char *) tl2, 0, sizeof(krb5_tl_data));
329 	       if (!xdr_krb5_int16(xdrs, &tl2->tl_data_type))
330 		    return FALSE;
331 	       if (!xdr_bytes(xdrs, (char **)&tl2->tl_data_contents, &len, ~0))
332 		    return FALSE;
333 	       tl2->tl_data_length = len;
334 
335 	       tl2->tl_data_next = tl;
336 	       tl = tl2;
337 	  }
338 
339 	  *tl_data_head = tl;
340 	  break;
341      }
342 
343      return TRUE;
344 }
345 
346 bool_t
347 xdr_kadm5_ret_t(XDR *xdrs, kadm5_ret_t *objp)
348 {
349 	rpc_u_int32 tmp;
350 
351 	if (xdrs->x_op == XDR_ENCODE)
352 		tmp = (rpc_u_int32) *objp;
353 
354 	if (!xdr_u_int(xdrs, &tmp))
355 		return (FALSE);
356 
357 	if (xdrs->x_op == XDR_DECODE)
358 		*objp = (kadm5_ret_t) tmp;
359 
360 	return (TRUE);
361 }
362 
363 bool_t xdr_kadm5_principal_ent_rec_v1(XDR *xdrs,
364 				      kadm5_principal_ent_rec *objp)
365 {
366      return _xdr_kadm5_principal_ent_rec(xdrs, objp, KADM5_API_VERSION_1);
367 }
368 
369 bool_t xdr_kadm5_principal_ent_rec(XDR *xdrs,
370 				   kadm5_principal_ent_rec *objp)
371 {
372      return _xdr_kadm5_principal_ent_rec(xdrs, objp, KADM5_API_VERSION_2);
373 }
374 
375 static bool_t
376 _xdr_kadm5_principal_ent_rec(XDR *xdrs, kadm5_principal_ent_rec *objp,
377 			     int v)
378 {
379      unsigned int n;
380 
381 	if (!xdr_krb5_principal(xdrs, &objp->principal)) {
382 		return (FALSE);
383 	}
384 	if (!xdr_krb5_timestamp(xdrs, &objp->princ_expire_time)) {
385 		return (FALSE);
386 	}
387 	if (!xdr_krb5_timestamp(xdrs, &objp->last_pwd_change)) {
388 		return (FALSE);
389 	}
390 	if (!xdr_krb5_timestamp(xdrs, &objp->pw_expiration)) {
391 		return (FALSE);
392 	}
393 	if (!xdr_krb5_deltat(xdrs, &objp->max_life)) {
394 		return (FALSE);
395 	}
396         if (v == KADM5_API_VERSION_1) {
397 	     if (!xdr_krb5_principal(xdrs, &objp->mod_name)) {
398 		  return (FALSE);
399 	     }
400 	} else {
401 	     if (!xdr_nulltype(xdrs, (void **) &objp->mod_name,
402 			       xdr_krb5_principal)) {
403 		  return (FALSE);
404 	     }
405 	}
406 	if (!xdr_krb5_timestamp(xdrs, &objp->mod_date)) {
407 		return (FALSE);
408 	}
409 	if (!xdr_krb5_flags(xdrs, &objp->attributes)) {
410 		return (FALSE);
411 	}
412 	if (!xdr_krb5_kvno(xdrs, &objp->kvno)) {
413 		return (FALSE);
414 	}
415 	if (!xdr_krb5_kvno(xdrs, &objp->mkvno)) {
416 		return (FALSE);
417 	}
418 	if (!xdr_nullstring(xdrs, &objp->policy)) {
419 		return (FALSE);
420 	}
421 	if (!xdr_long(xdrs, &objp->aux_attributes)) {
422 		return (FALSE);
423 	}
424 	if (v != KADM5_API_VERSION_1) {
425 	     if (!xdr_krb5_deltat(xdrs, &objp->max_renewable_life)) {
426 		  return (FALSE);
427 	     }
428 	     if (!xdr_krb5_timestamp(xdrs, &objp->last_success)) {
429 		  return (FALSE);
430 	     }
431 	     if (!xdr_krb5_timestamp(xdrs, &objp->last_failed)) {
432 		  return (FALSE);
433 	     }
434 	     if (!xdr_krb5_kvno(xdrs, &objp->fail_auth_count)) {
435 		  return (FALSE);
436 	     }
437 	     if (!xdr_krb5_int16(xdrs, &objp->n_key_data)) {
438 		  return (FALSE);
439 	     }
440 	     if (!xdr_krb5_int16(xdrs, &objp->n_tl_data)) {
441 		  return (FALSE);
442 	     }
443 	     if (!xdr_nulltype(xdrs, (void **) &objp->tl_data,
444 			       xdr_krb5_tl_data)) {
445 		  return FALSE;
446 	     }
447 	     n = objp->n_key_data;
448 	     if (!xdr_array(xdrs, (caddr_t *) &objp->key_data,
449 			    &n, ~0, sizeof(krb5_key_data),
450 			    xdr_krb5_key_data_nocontents)) {
451 		  return (FALSE);
452 	     }
453 	}
454 	return (TRUE);
455 }
456 
457 bool_t
458 xdr_kadm5_policy_ent_rec(XDR *xdrs, kadm5_policy_ent_rec *objp)
459 {
460 	if (!xdr_nullstring(xdrs, &objp->policy)) {
461 		return (FALSE);
462 	}
463 	/* these all used to be u_int32, but it's stupid for sized types
464 	   to be exposed at the api, and they're the same as longs on the
465 	   wire. */
466 	if (!xdr_long(xdrs, &objp->pw_min_life)) {
467 		return (FALSE);
468 	}
469 	if (!xdr_long(xdrs, &objp->pw_max_life)) {
470 		return (FALSE);
471 	}
472 	if (!xdr_long(xdrs, &objp->pw_min_length)) {
473 		return (FALSE);
474 	}
475 	if (!xdr_long(xdrs, &objp->pw_min_classes)) {
476 		return (FALSE);
477 	}
478 	if (!xdr_long(xdrs, &objp->pw_history_num)) {
479 		return (FALSE);
480 	}
481 	if (!xdr_long(xdrs, &objp->policy_refcnt)) {
482 		return (FALSE);
483 	}
484 	return (TRUE);
485 }
486 
487 bool_t
488 xdr_cprinc_arg(XDR *xdrs, cprinc_arg *objp)
489 {
490 	if (!xdr_ui_4(xdrs, &objp->api_version)) {
491 		return (FALSE);
492 	}
493 	if (objp->api_version == KADM5_API_VERSION_1) {
494 	     if (!xdr_kadm5_principal_ent_rec_v1(xdrs, &objp->rec)) {
495 		  return (FALSE);
496 	     }
497 	} else {
498 	     if (!xdr_kadm5_principal_ent_rec(xdrs, &objp->rec)) {
499 		  return (FALSE);
500 	     }
501 	}
502 	if (!xdr_long(xdrs, &objp->mask)) {
503 		return (FALSE);
504 	}
505 	if (!xdr_nullstring(xdrs, &objp->passwd)) {
506 		return (FALSE);
507 	}
508 	return (TRUE);
509 }
510 
511 bool_t
512 xdr_cprinc3_arg(XDR *xdrs, cprinc3_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_array(xdrs, (caddr_t *)&objp->ks_tuple,
530 		       (unsigned int *)&objp->n_ks_tuple, ~0,
531 		       sizeof(krb5_key_salt_tuple),
532 		       xdr_krb5_key_salt_tuple)) {
533 		return (FALSE);
534 	}
535 	if (!xdr_nullstring(xdrs, &objp->passwd)) {
536 		return (FALSE);
537 	}
538 	return (TRUE);
539 }
540 
541 bool_t
542 xdr_generic_ret(XDR *xdrs, generic_ret *objp)
543 {
544 	if (!xdr_ui_4(xdrs, &objp->api_version)) {
545 		return (FALSE);
546 	}
547 	if (!xdr_kadm5_ret_t(xdrs, &objp->code)) {
548 		return (FALSE);
549 	}
550 	return(TRUE);
551 }
552 
553 bool_t
554 xdr_dprinc_arg(XDR *xdrs, dprinc_arg *objp)
555 {
556 	if (!xdr_ui_4(xdrs, &objp->api_version)) {
557 		return (FALSE);
558 	}
559 	if (!xdr_krb5_principal(xdrs, &objp->princ)) {
560 		return (FALSE);
561 	}
562 	return (TRUE);
563 }
564 
565 bool_t
566 xdr_mprinc_arg(XDR *xdrs, mprinc_arg *objp)
567 {
568 	if (!xdr_ui_4(xdrs, &objp->api_version)) {
569 		return (FALSE);
570 	}
571 	if (objp->api_version == KADM5_API_VERSION_1) {
572 	     if (!xdr_kadm5_principal_ent_rec_v1(xdrs, &objp->rec)) {
573 		  return (FALSE);
574 	     }
575 	} else {
576 	     if (!xdr_kadm5_principal_ent_rec(xdrs, &objp->rec)) {
577 		  return (FALSE);
578 	     }
579 	}
580 	if (!xdr_long(xdrs, &objp->mask)) {
581 		return (FALSE);
582 	}
583 	return (TRUE);
584 }
585 
586 bool_t
587 xdr_rprinc_arg(XDR *xdrs, rprinc_arg *objp)
588 {
589 	if (!xdr_ui_4(xdrs, &objp->api_version)) {
590 		return (FALSE);
591 	}
592 	if (!xdr_krb5_principal(xdrs, &objp->src)) {
593 		return (FALSE);
594 	}
595 	if (!xdr_krb5_principal(xdrs, &objp->dest)) {
596 		return (FALSE);
597 	}
598 	return (TRUE);
599 }
600 
601 bool_t
602 xdr_gprincs_arg(XDR *xdrs, gprincs_arg *objp)
603 {
604      if (!xdr_ui_4(xdrs, &objp->api_version)) {
605 	  return (FALSE);
606      }
607      if (!xdr_nullstring(xdrs, &objp->exp)) {
608 	  return (FALSE);
609      }
610      return (TRUE);
611 }
612 
613 bool_t
614 xdr_gprincs_ret(XDR *xdrs, gprincs_ret *objp)
615 {
616      if (!xdr_ui_4(xdrs, &objp->api_version)) {
617 	  return (FALSE);
618      }
619      if (!xdr_kadm5_ret_t(xdrs, &objp->code)) {
620 	  return (FALSE);
621      }
622      if (objp->code == KADM5_OK) {
623 	  if (!xdr_int(xdrs, &objp->count)) {
624 	       return (FALSE);
625 	  }
626 	  if (!xdr_array(xdrs, (caddr_t *) &objp->princs,
627 			 (unsigned int *) &objp->count, ~0,
628 			 sizeof(char *), xdr_nullstring)) {
629 	       return (FALSE);
630 	  }
631      }
632      return (TRUE);
633 }
634 
635 bool_t
636 xdr_chpass_arg(XDR *xdrs, chpass_arg *objp)
637 {
638 	if (!xdr_ui_4(xdrs, &objp->api_version)) {
639 		return (FALSE);
640 	}
641 	if (!xdr_krb5_principal(xdrs, &objp->princ)) {
642 		return (FALSE);
643 	}
644 	if (!xdr_nullstring(xdrs, &objp->pass)) {
645 		return (FALSE);
646 	}
647 	return (TRUE);
648 }
649 
650 bool_t
651 xdr_chpass3_arg(XDR *xdrs, chpass3_arg *objp)
652 {
653 	if (!xdr_ui_4(xdrs, &objp->api_version)) {
654 		return (FALSE);
655 	}
656 	if (!xdr_krb5_principal(xdrs, &objp->princ)) {
657 		return (FALSE);
658 	}
659 	if (!xdr_bool(xdrs, (bool_t *) &objp->keepold)) { /* SUNWresync121 XXX */
660 		return (FALSE);
661 	}
662 	if (!xdr_array(xdrs, (caddr_t *)&objp->ks_tuple,
663 		       (unsigned int*)&objp->n_ks_tuple, ~0,
664 		       sizeof(krb5_key_salt_tuple),
665 		       xdr_krb5_key_salt_tuple)) {
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_setv4key_arg(XDR *xdrs, setv4key_arg *objp)
676 {
677 	unsigned int n_keys = 1;
678 
679 	if (!xdr_ui_4(xdrs, &objp->api_version)) {
680 		return (FALSE);
681 	}
682 	if (!xdr_krb5_principal(xdrs, &objp->princ)) {
683 		return (FALSE);
684 	}
685 	if (!xdr_array(xdrs, (caddr_t *) &objp->keyblock,
686 		       &n_keys, ~0,
687 		       sizeof(krb5_keyblock), xdr_krb5_keyblock)) {
688 	        return (FALSE);
689 	}
690 	return (TRUE);
691 }
692 
693 bool_t
694 xdr_setkey_arg(XDR *xdrs, setkey_arg *objp)
695 {
696 	if (!xdr_ui_4(xdrs, &objp->api_version)) {
697 		return (FALSE);
698 	}
699 	if (!xdr_krb5_principal(xdrs, &objp->princ)) {
700 		return (FALSE);
701 	}
702 	if (!xdr_array(xdrs, (caddr_t *) &objp->keyblocks,
703 		       (unsigned int *) &objp->n_keys, ~0,
704 		       sizeof(krb5_keyblock), xdr_krb5_keyblock)) {
705 	        return (FALSE);
706 	}
707 	return (TRUE);
708 }
709 
710 bool_t
711 xdr_setkey3_arg(XDR *xdrs, setkey3_arg *objp)
712 {
713 	if (!xdr_ui_4(xdrs, &objp->api_version)) {
714 		return (FALSE);
715 	}
716 	if (!xdr_krb5_principal(xdrs, &objp->princ)) {
717 		return (FALSE);
718 	}
719 	if (!xdr_bool(xdrs, (bool_t *) &objp->keepold)) { /* SUNWresync121 XXX */
720 		return (FALSE);
721 	}
722 	if (!xdr_array(xdrs, (caddr_t *) &objp->ks_tuple,
723 		       (unsigned int *) &objp->n_ks_tuple, ~0,
724 		       sizeof(krb5_key_salt_tuple), xdr_krb5_key_salt_tuple)) {
725 		return (FALSE);
726 	}
727 	if (!xdr_array(xdrs, (caddr_t *) &objp->keyblocks,
728 		       (unsigned int *) &objp->n_keys, ~0,
729 		       sizeof(krb5_keyblock), xdr_krb5_keyblock)) {
730 		return (FALSE);
731 	}
732 	return (TRUE);
733 }
734 
735 bool_t
736 xdr_chrand_arg(XDR *xdrs, chrand_arg *objp)
737 {
738 	if (!xdr_ui_4(xdrs, &objp->api_version)) {
739 		return (FALSE);
740 	}
741 	if (!xdr_krb5_principal(xdrs, &objp->princ)) {
742 		return (FALSE);
743 	}
744 	return (TRUE);
745 }
746 
747 bool_t
748 xdr_chrand3_arg(XDR *xdrs, chrand3_arg *objp)
749 {
750 	if (!xdr_ui_4(xdrs, &objp->api_version)) {
751 		return (FALSE);
752 	}
753 	if (!xdr_krb5_principal(xdrs, &objp->princ)) {
754 		return (FALSE);
755 	}
756 	if (!xdr_bool(xdrs, (bool_t *) &objp->keepold)) { /* SUNWresync121 XXX */
757 		return (FALSE);
758 	}
759 	if (!xdr_array(xdrs, (caddr_t *)&objp->ks_tuple,
760 		       (unsigned int*)&objp->n_ks_tuple, ~0,
761 		       sizeof(krb5_key_salt_tuple),
762 		       xdr_krb5_key_salt_tuple)) {
763 		return (FALSE);
764 	}
765 	return (TRUE);
766 }
767 
768 bool_t
769 xdr_chrand_ret(XDR *xdrs, chrand_ret *objp)
770 {
771 	if (!xdr_ui_4(xdrs, &objp->api_version)) {
772 		return (FALSE);
773 	}
774 	if (!xdr_kadm5_ret_t(xdrs, &objp->code)) {
775 		return (FALSE);
776 	}
777 	if (objp->api_version == KADM5_API_VERSION_1) {
778 	     if(objp->code == KADM5_OK) {
779 		  if (!xdr_krb5_keyblock(xdrs, &objp->key)) {
780 		       return (FALSE);
781 		  }
782 	     }
783 	} else {
784 	     if (objp->code == KADM5_OK) {
785 		  if (!xdr_array(xdrs, (char **)&objp->keys, (unsigned int *)&objp->n_keys, ~0,
786 				 sizeof(krb5_keyblock),
787 				 xdr_krb5_keyblock))
788 		       return FALSE;
789 	     }
790 	}
791 
792 	return (TRUE);
793 }
794 
795 bool_t
796 xdr_gprinc_arg(XDR *xdrs, gprinc_arg *objp)
797 {
798 	if (!xdr_ui_4(xdrs, &objp->api_version)) {
799 		return (FALSE);
800 	}
801 	if (!xdr_krb5_principal(xdrs, &objp->princ)) {
802 		return (FALSE);
803 	}
804 	if ((objp->api_version > KADM5_API_VERSION_1) &&
805 	    !xdr_long(xdrs, &objp->mask)) {
806 	     return FALSE;
807 	}
808 
809 	return (TRUE);
810 }
811 
812 bool_t
813 xdr_gprinc_ret(XDR *xdrs, gprinc_ret *objp)
814 {
815 	if (!xdr_ui_4(xdrs, &objp->api_version)) {
816 		return (FALSE);
817 	}
818 	if (!xdr_kadm5_ret_t(xdrs, &objp->code)) {
819 		return (FALSE);
820 	}
821 	if(objp->code == KADM5_OK)  {
822 	     if (objp->api_version == KADM5_API_VERSION_1) {
823 		  if (!xdr_kadm5_principal_ent_rec_v1(xdrs, &objp->rec)) {
824 		       return (FALSE);
825 		  }
826 	     } else {
827 		  if (!xdr_kadm5_principal_ent_rec(xdrs, &objp->rec)) {
828 		       return (FALSE);
829 		  }
830 	     }
831 	}
832 	return (TRUE);
833 }
834 
835 bool_t
836 xdr_cpol_arg(XDR *xdrs, cpol_arg *objp)
837 {
838 	if (!xdr_ui_4(xdrs, &objp->api_version)) {
839 		return (FALSE);
840 	}
841 	if (!xdr_kadm5_policy_ent_rec(xdrs, &objp->rec)) {
842 		return (FALSE);
843 	}
844 	if (!xdr_long(xdrs, &objp->mask)) {
845 		return (FALSE);
846 	}
847 	return (TRUE);
848 }
849 
850 bool_t
851 xdr_dpol_arg(XDR *xdrs, dpol_arg *objp)
852 {
853 	if (!xdr_ui_4(xdrs, &objp->api_version)) {
854 		return (FALSE);
855 	}
856 	if (!xdr_nullstring(xdrs, &objp->name)) {
857 		return (FALSE);
858 	}
859 	return (TRUE);
860 }
861 
862 bool_t
863 xdr_mpol_arg(XDR *xdrs, mpol_arg *objp)
864 {
865 	if (!xdr_ui_4(xdrs, &objp->api_version)) {
866 		return (FALSE);
867 	}
868 	if (!xdr_kadm5_policy_ent_rec(xdrs, &objp->rec)) {
869 		return (FALSE);
870 	}
871 	if (!xdr_long(xdrs, &objp->mask)) {
872 		return (FALSE);
873 	}
874 	return (TRUE);
875 }
876 
877 bool_t
878 xdr_gpol_arg(XDR *xdrs, gpol_arg *objp)
879 {
880 	if (!xdr_ui_4(xdrs, &objp->api_version)) {
881 		return (FALSE);
882 	}
883 	if (!xdr_nullstring(xdrs, &objp->name)) {
884 		return (FALSE);
885 	}
886 	return (TRUE);
887 }
888 
889 bool_t
890 xdr_gpol_ret(XDR *xdrs, gpol_ret *objp)
891 {
892 	if (!xdr_ui_4(xdrs, &objp->api_version)) {
893 		return (FALSE);
894 	}
895 	if (!xdr_kadm5_ret_t(xdrs, &objp->code)) {
896 		return (FALSE);
897 	}
898 	if(objp->code == KADM5_OK) {
899 	    if (!xdr_kadm5_policy_ent_rec(xdrs, &objp->rec))
900 		return (FALSE);
901 	}
902 	return (TRUE);
903 }
904 
905 bool_t
906 xdr_gpols_arg(XDR *xdrs, gpols_arg *objp)
907 {
908      if (!xdr_ui_4(xdrs, &objp->api_version)) {
909 	  return (FALSE);
910      }
911      if (!xdr_nullstring(xdrs, &objp->exp)) {
912 	  return (FALSE);
913      }
914      return (TRUE);
915 }
916 
917 bool_t
918 xdr_gpols_ret(XDR *xdrs, gpols_ret *objp)
919 {
920      if (!xdr_ui_4(xdrs, &objp->api_version)) {
921 	  return (FALSE);
922      }
923      if (!xdr_kadm5_ret_t(xdrs, &objp->code)) {
924 	  return (FALSE);
925      }
926      if (objp->code == KADM5_OK) {
927 	  if (!xdr_int(xdrs, &objp->count)) {
928 	       return (FALSE);
929 	  }
930 	  if (!xdr_array(xdrs, (caddr_t *) &objp->pols,
931 			 (unsigned int *) &objp->count, ~0,
932 			 sizeof(char *), xdr_nullstring)) {
933 	       return (FALSE);
934 	  }
935      }
936      return (TRUE);
937 }
938 
939 bool_t xdr_getprivs_ret(XDR *xdrs, getprivs_ret *objp)
940 {
941 	if (!xdr_ui_4(xdrs, &objp->api_version)) {
942 		return (FALSE);
943 	}
944      if (! xdr_kadm5_ret_t(xdrs, &objp->code) ||
945 	 ! xdr_long(xdrs, &objp->privs))
946 	  return FALSE;
947      return TRUE;
948 }
949 
950 bool_t
951 xdr_krb5_principal(XDR *xdrs, krb5_principal *objp)
952 {
953     int	    ret;
954     char	    *p = NULL;
955     krb5_principal  pr = NULL;
956     static krb5_context context = NULL;
957 
958     /* using a static context here is ugly, but should work
959        ok, and the other solutions are even uglier */
960 
961     if (!context &&
962 	krb5_init_context(&context))
963        return(FALSE);
964 
965     switch(xdrs->x_op) {
966     case XDR_ENCODE:
967 	if (*objp) {
968 	     if((ret = krb5_unparse_name(context, *objp, &p)) != 0)
969 		  return FALSE;
970 	}
971 	if(!xdr_nullstring(xdrs, &p))
972 	    return FALSE;
973 	if (p) free(p);
974 	break;
975     case XDR_DECODE:
976 	if(!xdr_nullstring(xdrs, &p))
977 	    return FALSE;
978 	if (p) {
979 	     ret = krb5_parse_name(context, p, &pr);
980 	     if(ret != 0)
981 		  return FALSE;
982 	     *objp = pr;
983 	     free(p);
984 	} else
985 	     *objp = NULL;
986 	break;
987     case XDR_FREE:
988 	if(*objp != NULL)
989 	    krb5_free_principal(context, *objp);
990 	break;
991     }
992     return TRUE;
993 }
994 
995 bool_t
996 xdr_krb5_octet(XDR *xdrs, krb5_octet *objp)
997 {
998    if (!xdr_u_char(xdrs, objp))
999 	return (FALSE);
1000    return (TRUE);
1001 }
1002 
1003 bool_t
1004 xdr_krb5_enctype(XDR *xdrs, krb5_enctype *objp)
1005 {
1006    /*
1007     * This used to be xdr_krb5_keytype, but keytypes and enctypes have
1008     * been merged into only enctypes.  However, randkey_principal
1009     * already ensures that only a key of ENCTYPE_DES_CBC_CRC will be
1010     * returned to v1 clients, and ENCTYPE_DES_CBC_CRC has the same
1011     * value as KEYTYPE_DES used too, which is what all v1 clients
1012     * expect.  Therefore, IMHO, just encoding whatever enctype we get
1013     * is safe.
1014     */
1015 
1016    if (!xdr_u_int(xdrs, (unsigned int *) objp))
1017 	return (FALSE);
1018    return (TRUE);
1019 }
1020 
1021 bool_t
1022 xdr_krb5_salttype(XDR *xdrs, krb5_int32 *objp)
1023 {
1024     if (!xdr_int(xdrs, (rpc_int32 *) objp)) /* SUNWresync121 XXX */
1025 	return FALSE;
1026     return TRUE;
1027 }
1028 
1029 bool_t
1030 xdr_krb5_keyblock(XDR *xdrs, krb5_keyblock *objp)
1031 {
1032    /* XXX This only works because free_keyblock assumes ->contents
1033       is allocated by malloc() */
1034 
1035    if(!xdr_krb5_enctype(xdrs, &objp->enctype))
1036       return FALSE;
1037    if(!xdr_bytes(xdrs, (char **) &objp->contents, (unsigned int *)
1038 		 &objp->length, ~0))
1039       return FALSE;
1040    return TRUE;
1041 }
1042