1 /*        $NetBSD: cyrus.c,v 1.3 2021/08/14 16:14:55 christos Exp $   */
2 
3 /* $OpenLDAP$ */
4 /* This work is part of OpenLDAP Software <http://www.openldap.org/>.
5  *
6  * Copyright 1998-2021 The OpenLDAP Foundation.
7  * All rights reserved.
8  *
9  * Redistribution and use in source and binary forms, with or without
10  * modification, are permitted only as authorized by the OpenLDAP
11  * Public License.
12  *
13  * A copy of this license is available in the file LICENSE in the
14  * top-level directory of the distribution or, alternatively, at
15  * <http://www.OpenLDAP.org/license.html>.
16  */
17 
18 #include <sys/cdefs.h>
19 __RCSID("$NetBSD: cyrus.c,v 1.3 2021/08/14 16:14:55 christos Exp $");
20 
21 #include "portable.h"
22 
23 #include "ldap-int.h"
24 
25 #ifdef HAVE_CYRUS_SASL
26 
27 #include <stdio.h>
28 
29 #include <ac/socket.h>
30 #include <ac/stdlib.h>
31 #include <ac/string.h>
32 #include <ac/time.h>
33 #include <ac/errno.h>
34 #include <ac/ctype.h>
35 #include <ac/unistd.h>
36 
37 #ifdef HAVE_LIMITS_H
38 #include <limits.h>
39 #endif
40 
41 #ifndef INT_MAX
42 #define   INT_MAX   2147483647          /* 32 bit signed max */
43 #endif
44 
45 #if !defined(HOST_NAME_MAX) && defined(_POSIX_HOST_NAME_MAX)
46 #define HOST_NAME_MAX _POSIX_HOST_NAME_MAX
47 #endif
48 
49 #ifdef HAVE_SASL_SASL_H
50 #include <sasl/sasl.h>
51 #else
52 #include <sasl.h>
53 #endif
54 
55 #if SASL_VERSION_MAJOR >= 2
56 #define SASL_CONST const
57 #else
58 #define SASL_CONST
59 #endif
60 
61 /*
62 * Various Cyrus SASL related stuff.
63 */
64 
65 static const sasl_callback_t client_callbacks[] = {
66 #ifdef SASL_CB_GETREALM
67           { SASL_CB_GETREALM, NULL, NULL },
68 #endif
69           { SASL_CB_USER, NULL, NULL },
70           { SASL_CB_AUTHNAME, NULL, NULL },
71           { SASL_CB_PASS, NULL, NULL },
72           { SASL_CB_ECHOPROMPT, NULL, NULL },
73           { SASL_CB_NOECHOPROMPT, NULL, NULL },
74           { SASL_CB_LIST_END, NULL, NULL }
75 };
76 
77 /*
78  * ldap_int_initialize is responsible for calling this only once.
79  */
ldap_int_sasl_init(void)80 int ldap_int_sasl_init( void )
81 {
82 #ifdef HAVE_SASL_VERSION
83           /* stringify the version number, sasl.h doesn't do it for us */
84 #define VSTR0(maj, min, pat)  #maj "." #min "." #pat
85 #define VSTR(maj, min, pat)   VSTR0(maj, min, pat)
86 #define SASL_VERSION_STRING   VSTR(SASL_VERSION_MAJOR, SASL_VERSION_MINOR, \
87                                         SASL_VERSION_STEP)
88           { int rc;
89           sasl_version( NULL, &rc );
90           if ( ((rc >> 16) != ((SASL_VERSION_MAJOR << 8)|SASL_VERSION_MINOR)) ||
91                     (rc & 0xffff) < SASL_VERSION_STEP) {
92                     char version[sizeof("xxx.xxx.xxxxx")];
93                     sprintf( version, "%u.%d.%d", (unsigned)rc >> 24, (rc >> 16) & 0xff,
94                               rc & 0xffff );
95 
96                     Debug1( LDAP_DEBUG_ANY,
97                     "ldap_int_sasl_init: SASL library version mismatch:"
98                     " expected " SASL_VERSION_STRING ","
99                     " got %s\n", version );
100                     return -1;
101           }
102           }
103 #endif
104 
105 /* SASL 2 takes care of its own memory completely internally */
106 #if SASL_VERSION_MAJOR < 2 && !defined(CSRIMALLOC)
107           sasl_set_alloc(
108                     ber_memalloc,
109                     ber_memcalloc,
110                     ber_memrealloc,
111                     ber_memfree );
112 #endif /* CSRIMALLOC */
113 
114 #ifdef LDAP_R_COMPILE
115           sasl_set_mutex(
116                     ldap_pvt_sasl_mutex_new,
117                     ldap_pvt_sasl_mutex_lock,
118                     ldap_pvt_sasl_mutex_unlock,
119                     ldap_pvt_sasl_mutex_dispose );
120 #endif
121 
122           if ( sasl_client_init( NULL ) == SASL_OK ) {
123                     return 0;
124           }
125 
126 #if SASL_VERSION_MAJOR < 2
127           /* A no-op to make sure we link with Cyrus 1.5 */
128           sasl_client_auth( NULL, NULL, NULL, 0, NULL, NULL );
129 #endif
130           return -1;
131 }
132 
133 static void
sb_sasl_cyrus_init(struct sb_sasl_generic_data * p,ber_len_t * min_send,ber_len_t * max_send,ber_len_t * max_recv)134 sb_sasl_cyrus_init(
135           struct sb_sasl_generic_data *p,
136           ber_len_t *min_send,
137           ber_len_t *max_send,
138           ber_len_t *max_recv)
139 {
140           sasl_conn_t *sasl_context = (sasl_conn_t *)p->ops_private;
141           ber_len_t maxbuf;
142 
143           sasl_getprop( sasl_context, SASL_MAXOUTBUF,
144                           (SASL_CONST void **)(char *) &maxbuf );
145 
146           *min_send = SASL_MIN_BUFF_SIZE;
147           *max_send = maxbuf;
148           *max_recv = SASL_MAX_BUFF_SIZE;
149 }
150 
151 static ber_int_t
sb_sasl_cyrus_encode(struct sb_sasl_generic_data * p,unsigned char * buf,ber_len_t len,Sockbuf_Buf * dst)152 sb_sasl_cyrus_encode(
153           struct sb_sasl_generic_data *p,
154           unsigned char *buf,
155           ber_len_t len,
156           Sockbuf_Buf *dst)
157 {
158           sasl_conn_t *sasl_context = (sasl_conn_t *)p->ops_private;
159           ber_int_t ret;
160           unsigned tmpsize = dst->buf_size;
161 
162           ret = sasl_encode( sasl_context, (char *)buf, len,
163                                  (SASL_CONST char **)&dst->buf_base,
164                                  &tmpsize );
165 
166           dst->buf_size = tmpsize;
167           dst->buf_end = dst->buf_size;
168 
169           if ( ret != SASL_OK ) {
170                     ber_log_printf( LDAP_DEBUG_ANY, p->sbiod->sbiod_sb->sb_debug,
171                                         "sb_sasl_cyrus_encode: failed to encode packet: %s\n",
172                                         sasl_errstring( ret, NULL, NULL ) );
173                     return -1;
174           }
175 
176           return 0;
177 }
178 
179 static ber_int_t
sb_sasl_cyrus_decode(struct sb_sasl_generic_data * p,const Sockbuf_Buf * src,Sockbuf_Buf * dst)180 sb_sasl_cyrus_decode(
181           struct sb_sasl_generic_data *p,
182           const Sockbuf_Buf *src,
183           Sockbuf_Buf *dst)
184 {
185           sasl_conn_t *sasl_context = (sasl_conn_t *)p->ops_private;
186           ber_int_t ret;
187           unsigned tmpsize = dst->buf_size;
188 
189           ret = sasl_decode( sasl_context,
190                                  src->buf_base, src->buf_end,
191                                  (SASL_CONST char **)&dst->buf_base,
192                                  (unsigned *)&tmpsize );
193 
194 
195           dst->buf_size = tmpsize;
196           dst->buf_end = dst->buf_size;
197 
198           if ( ret != SASL_OK ) {
199                     ber_log_printf( LDAP_DEBUG_ANY, p->sbiod->sbiod_sb->sb_debug,
200                                         "sb_sasl_cyrus_decode: failed to decode packet: %s\n",
201                                         sasl_errstring( ret, NULL, NULL ) );
202                     return -1;
203           }
204 
205           return 0;
206 }
207 
208 static void
sb_sasl_cyrus_reset_buf(struct sb_sasl_generic_data * p,Sockbuf_Buf * buf)209 sb_sasl_cyrus_reset_buf(
210           struct sb_sasl_generic_data *p,
211           Sockbuf_Buf *buf)
212 {
213 #if SASL_VERSION_MAJOR >= 2
214           ber_pvt_sb_buf_init( buf );
215 #else
216           ber_pvt_sb_buf_destroy( buf );
217 #endif
218 }
219 
220 static void
sb_sasl_cyrus_fini(struct sb_sasl_generic_data * p)221 sb_sasl_cyrus_fini(
222           struct sb_sasl_generic_data *p)
223 {
224 #if SASL_VERSION_MAJOR >= 2
225           /*
226            * SASLv2 encode/decode buffers are managed by
227            * libsasl2. Ensure they are not freed by liblber.
228            */
229           p->buf_in.buf_base = NULL;
230           p->buf_out.buf_base = NULL;
231 #endif
232 }
233 
234 static const struct sb_sasl_generic_ops sb_sasl_cyrus_ops = {
235           sb_sasl_cyrus_init,
236           sb_sasl_cyrus_encode,
237           sb_sasl_cyrus_decode,
238           sb_sasl_cyrus_reset_buf,
239           sb_sasl_cyrus_fini
240  };
241 
ldap_pvt_sasl_install(Sockbuf * sb,void * ctx_arg)242 int ldap_pvt_sasl_install( Sockbuf *sb, void *ctx_arg )
243 {
244           struct sb_sasl_generic_install install_arg;
245 
246           install_arg.ops               = &sb_sasl_cyrus_ops;
247           install_arg.ops_private = ctx_arg;
248 
249           return ldap_pvt_sasl_generic_install( sb, &install_arg );
250 }
251 
ldap_pvt_sasl_remove(Sockbuf * sb)252 void ldap_pvt_sasl_remove( Sockbuf *sb )
253 {
254           ldap_pvt_sasl_generic_remove( sb );
255 }
256 
257 static int
sasl_err2ldap(int saslerr)258 sasl_err2ldap( int saslerr )
259 {
260           int rc;
261 
262           /* map SASL errors to LDAP API errors returned by:
263            *        sasl_client_new()
264            *                  SASL_OK, SASL_NOMECH, SASL_NOMEM
265            *        sasl_client_start()
266            *                  SASL_OK, SASL_NOMECH, SASL_NOMEM, SASL_INTERACT
267            *        sasl_client_step()
268            *                  SASL_OK, SASL_INTERACT, SASL_BADPROT, SASL_BADSERV
269            */
270 
271           switch (saslerr) {
272                     case SASL_CONTINUE:
273                               rc = LDAP_MORE_RESULTS_TO_RETURN;
274                               break;
275                     case SASL_INTERACT:
276                               rc = LDAP_LOCAL_ERROR;
277                               break;
278                     case SASL_OK:
279                               rc = LDAP_SUCCESS;
280                               break;
281                     case SASL_NOMEM:
282                               rc = LDAP_NO_MEMORY;
283                               break;
284                     case SASL_NOMECH:
285                               rc = LDAP_AUTH_UNKNOWN;
286                               break;
287                     case SASL_BADPROT:
288                               rc = LDAP_DECODING_ERROR;
289                               break;
290                     case SASL_BADSERV:
291                               rc = LDAP_AUTH_UNKNOWN;
292                               break;
293 
294                     /* other codes */
295                     case SASL_BADAUTH:
296                               rc = LDAP_AUTH_UNKNOWN;
297                               break;
298                     case SASL_NOAUTHZ:
299                               rc = LDAP_PARAM_ERROR;
300                               break;
301                     case SASL_FAIL:
302                               rc = LDAP_LOCAL_ERROR;
303                               break;
304                     case SASL_TOOWEAK:
305                     case SASL_ENCRYPT:
306                               rc = LDAP_AUTH_UNKNOWN;
307                               break;
308                     default:
309                               rc = LDAP_LOCAL_ERROR;
310                               break;
311           }
312 
313           assert( rc == LDAP_SUCCESS || LDAP_API_ERROR( rc ) );
314           return rc;
315 }
316 
317 int
ldap_int_sasl_open(LDAP * ld,LDAPConn * lc,const char * host)318 ldap_int_sasl_open(
319           LDAP *ld,
320           LDAPConn *lc,
321           const char * host )
322 {
323           int rc;
324           sasl_conn_t *ctx;
325 
326           assert( lc->lconn_sasl_authctx == NULL );
327 
328           if ( host == NULL ) {
329                     ld->ld_errno = LDAP_LOCAL_ERROR;
330                     return ld->ld_errno;
331           }
332 
333 #if SASL_VERSION_MAJOR >= 2
334           rc = sasl_client_new( "ldap", host, NULL, NULL,
335                     client_callbacks, 0, &ctx );
336 #else
337           rc = sasl_client_new( "ldap", host, client_callbacks,
338                     SASL_SECURITY_LAYER, &ctx );
339 #endif
340 
341           if ( rc != SASL_OK ) {
342                     ld->ld_errno = sasl_err2ldap( rc );
343                     return ld->ld_errno;
344           }
345 
346           Debug1( LDAP_DEBUG_TRACE, "ldap_int_sasl_open: host=%s\n",
347                     host );
348 
349           lc->lconn_sasl_authctx = ctx;
350 
351           return LDAP_SUCCESS;
352 }
353 
ldap_int_sasl_close(LDAP * ld,LDAPConn * lc)354 int ldap_int_sasl_close( LDAP *ld, LDAPConn *lc )
355 {
356           sasl_conn_t *ctx = lc->lconn_sasl_authctx;
357 
358           if( ctx != NULL ) {
359                     sasl_dispose( &ctx );
360                     if ( lc->lconn_sasl_sockctx &&
361                               lc->lconn_sasl_authctx != lc->lconn_sasl_sockctx ) {
362                               ctx = lc->lconn_sasl_sockctx;
363                               sasl_dispose( &ctx );
364                     }
365                     lc->lconn_sasl_sockctx = NULL;
366                     lc->lconn_sasl_authctx = NULL;
367           }
368           if( lc->lconn_sasl_cbind ) {
369                     ldap_memfree( lc->lconn_sasl_cbind );
370                     lc->lconn_sasl_cbind = NULL;
371           }
372 
373           return LDAP_SUCCESS;
374 }
375 
ldap_pvt_sasl_cbinding_parse(const char * arg)376 int ldap_pvt_sasl_cbinding_parse( const char *arg )
377 {
378           int i = -1;
379 
380           if ( strcasecmp(arg, "none") == 0 )
381                     i = LDAP_OPT_X_SASL_CBINDING_NONE;
382           else if ( strcasecmp(arg, "tls-unique") == 0 )
383                     i = LDAP_OPT_X_SASL_CBINDING_TLS_UNIQUE;
384           else if ( strcasecmp(arg, "tls-endpoint") == 0 )
385                     i = LDAP_OPT_X_SASL_CBINDING_TLS_ENDPOINT;
386 
387           return i;
388 }
389 
ldap_pvt_sasl_cbinding(void * ssl,int type,int is_server)390 void *ldap_pvt_sasl_cbinding( void *ssl, int type, int is_server )
391 {
392 #if defined(SASL_CHANNEL_BINDING) && defined(HAVE_TLS)
393           char unique_prefix[] = "tls-unique:";
394           char endpoint_prefix[] = "tls-server-end-point:";
395           char cbinding[ 64 ];
396           struct berval cbv = { 64, cbinding };
397           void *cb_data; /* used since cb->data is const* */
398           sasl_channel_binding_t *cb;
399           char *prefix;
400           int plen;
401 
402           switch (type) {
403           case LDAP_OPT_X_SASL_CBINDING_NONE:
404                     return NULL;
405           case LDAP_OPT_X_SASL_CBINDING_TLS_UNIQUE:
406                     if ( !ldap_pvt_tls_get_unique( ssl, &cbv, is_server ))
407                               return NULL;
408                     prefix = unique_prefix;
409                     plen = sizeof(unique_prefix) -1;
410                     break;
411           case LDAP_OPT_X_SASL_CBINDING_TLS_ENDPOINT:
412                     if ( !ldap_pvt_tls_get_endpoint( ssl, &cbv, is_server ))
413                               return NULL;
414                     prefix = endpoint_prefix;
415                     plen = sizeof(endpoint_prefix) -1;
416                     break;
417           default:
418                     return NULL;
419           }
420 
421           cb = ldap_memalloc( sizeof(*cb) + plen + cbv.bv_len );
422           cb->len = plen + cbv.bv_len;
423           cb->data = cb_data = cb+1;
424           memcpy( cb_data, prefix, plen );
425           memcpy( cb_data + plen, cbv.bv_val, cbv.bv_len );
426           cb->name = "ldap";
427           cb->critical = 0;
428 
429           return cb;
430 #else
431           return NULL;
432 #endif
433 }
434 
435 int
ldap_int_sasl_bind(LDAP * ld,const char * dn,const char * mechs,LDAPControl ** sctrls,LDAPControl ** cctrls,unsigned flags,LDAP_SASL_INTERACT_PROC * interact,void * defaults,LDAPMessage * result,const char ** rmech,int * msgid)436 ldap_int_sasl_bind(
437           LDAP                          *ld,
438           const char                    *dn,
439           const char                    *mechs,
440           LDAPControl                   **sctrls,
441           LDAPControl                   **cctrls,
442           unsigned            flags,
443           LDAP_SASL_INTERACT_PROC *interact,
444           void                          *defaults,
445           LDAPMessage                   *result,
446           const char                    **rmech,
447           int                                     *msgid )
448 {
449           const char                    *mech;
450           sasl_ssf_t                    *ssf;
451           sasl_conn_t                   *ctx;
452           sasl_interact_t *prompts = NULL;
453           struct berval       ccred = BER_BVNULL;
454           int saslrc, rc;
455           unsigned credlen;
456 #if !defined(_WIN32)
457           char my_hostname[HOST_NAME_MAX + 1];
458 #endif
459           int free_saslhost = 0;
460 
461           Debug1( LDAP_DEBUG_TRACE, "ldap_int_sasl_bind: %s\n",
462                     mechs ? mechs : "<null>" );
463 
464           /* do a quick !LDAPv3 check... ldap_sasl_bind will do the rest. */
465           if (ld->ld_version < LDAP_VERSION3) {
466                     ld->ld_errno = LDAP_NOT_SUPPORTED;
467                     return ld->ld_errno;
468           }
469 
470           /* Starting a Bind */
471           if ( !result ) {
472                     const char *pmech = NULL;
473                     sasl_conn_t         *oldctx;
474                     ber_socket_t                  sd;
475                     void      *ssl;
476 
477                     rc = 0;
478                     LDAP_MUTEX_LOCK( &ld->ld_conn_mutex );
479                     ber_sockbuf_ctrl( ld->ld_sb, LBER_SB_OPT_GET_FD, &sd );
480 
481                     if ( sd == AC_SOCKET_INVALID || !ld->ld_defconn ) {
482                               /* not connected yet */
483 
484                               rc = ldap_open_defconn( ld );
485 
486                               if ( rc == 0 ) {
487                                         ber_sockbuf_ctrl( ld->ld_defconn->lconn_sb,
488                                                   LBER_SB_OPT_GET_FD, &sd );
489 
490                                         if( sd == AC_SOCKET_INVALID ) {
491                                                   ld->ld_errno = LDAP_LOCAL_ERROR;
492                                                   rc = ld->ld_errno;
493                                         }
494                               }
495                     }
496                     if ( rc == 0 && ld->ld_defconn &&
497                               ld->ld_defconn->lconn_status == LDAP_CONNST_CONNECTING ) {
498                               rc = ldap_int_check_async_open( ld, sd );
499                     }
500                     LDAP_MUTEX_UNLOCK( &ld->ld_conn_mutex );
501                     if( rc != 0 ) return ld->ld_errno;
502 
503                     oldctx = ld->ld_defconn->lconn_sasl_authctx;
504 
505                     /* If we already have an authentication context, clear it out */
506                     if( oldctx ) {
507                               if ( oldctx != ld->ld_defconn->lconn_sasl_sockctx ) {
508                                         sasl_dispose( &oldctx );
509                               }
510                               ld->ld_defconn->lconn_sasl_authctx = NULL;
511                     }
512 
513                     {
514                               char *saslhost;
515                               int nocanon = (int)LDAP_BOOL_GET( &ld->ld_options,
516                                         LDAP_BOOL_SASL_NOCANON );
517 
518                               /* If we don't need to canonicalize just use the host
519                                * from the LDAP URI.
520                                * Always use the result of gethostname() for LDAPI.
521                                * Skip for Windows which doesn't support LDAPI.
522                                */
523 #if !defined(_WIN32)
524                               if (ld->ld_defconn->lconn_server->lud_scheme != NULL &&
525                                   strcmp("ldapi", ld->ld_defconn->lconn_server->lud_scheme) == 0) {
526                                         rc = gethostname(my_hostname, HOST_NAME_MAX + 1);
527                                         if (rc == 0) {
528                                                   saslhost = my_hostname;
529                                         } else {
530                                                   saslhost = "localhost";
531                                         }
532                               } else
533 #endif
534                               if ( nocanon )
535                                         saslhost = ld->ld_defconn->lconn_server->lud_host;
536                               else {
537                                         saslhost = ldap_host_connected_to( ld->ld_defconn->lconn_sb,
538                                         "localhost" );
539                                         free_saslhost = 1;
540                               }
541                               rc = ldap_int_sasl_open( ld, ld->ld_defconn, saslhost );
542                               if ( free_saslhost )
543                                         LDAP_FREE( saslhost );
544                     }
545 
546                     if ( rc != LDAP_SUCCESS ) return rc;
547 
548                     ctx = ld->ld_defconn->lconn_sasl_authctx;
549 
550 #ifdef HAVE_TLS
551                     /* Check for TLS */
552                     ssl = ldap_pvt_tls_sb_ctx( ld->ld_defconn->lconn_sb );
553                     if ( ssl ) {
554                               struct berval authid = BER_BVNULL;
555                               ber_len_t fac;
556 
557                               fac = ldap_pvt_tls_get_strength( ssl );
558                               /* failure is OK, we just can't use SASL EXTERNAL */
559                               (void) ldap_pvt_tls_get_my_dn( ssl, &authid, NULL, 0 );
560 
561                               (void) ldap_int_sasl_external( ld, ld->ld_defconn, authid.bv_val, fac );
562                               LDAP_FREE( authid.bv_val );
563 #ifdef SASL_CHANNEL_BINDING   /* 2.1.25+ */
564                               if ( ld->ld_defconn->lconn_sasl_cbind == NULL ) {
565                                         void *cb;
566                                         cb = ldap_pvt_sasl_cbinding( ssl,
567                                                                            ld->ld_options.ldo_sasl_cbinding,
568                                                                            0 );
569                                         if ( cb != NULL ) {
570                                                   sasl_setprop( ld->ld_defconn->lconn_sasl_authctx,
571                                                             SASL_CHANNEL_BINDING, cb );
572                                                   ld->ld_defconn->lconn_sasl_cbind = cb;
573                                         }
574                               }
575 #endif
576                     }
577 #endif
578 
579 #if !defined(_WIN32)
580                     /* Check for local */
581                     if ( ldap_pvt_url_scheme2proto(
582                               ld->ld_defconn->lconn_server->lud_scheme ) == LDAP_PROTO_IPC )
583                     {
584                               char authid[sizeof("gidNumber=4294967295+uidNumber=4294967295,"
585                                         "cn=peercred,cn=external,cn=auth")];
586                               sprintf( authid, "gidNumber=%u+uidNumber=%u,"
587                                         "cn=peercred,cn=external,cn=auth",
588                                         getegid(), geteuid() );
589                               (void) ldap_int_sasl_external( ld, ld->ld_defconn, authid,
590                                         LDAP_PVT_SASL_LOCAL_SSF );
591                     }
592 #endif
593 
594                     /* (re)set security properties */
595                     sasl_setprop( ctx, SASL_SEC_PROPS,
596                               &ld->ld_options.ldo_sasl_secprops );
597 
598                     mech = NULL;
599 
600                     do {
601                               saslrc = sasl_client_start( ctx,
602                                         mechs,
603 #if SASL_VERSION_MAJOR < 2
604                                         NULL,
605 #endif
606                                         &prompts,
607                                         (SASL_CONST char **)&ccred.bv_val,
608                                         &credlen,
609                                         &mech );
610 
611                               if( pmech == NULL && mech != NULL ) {
612                                         pmech = mech;
613                                         *rmech = mech;
614 
615                                         if( flags != LDAP_SASL_QUIET ) {
616                                                   fprintf(stderr,
617                                                             "SASL/%s authentication started\n",
618                                                             pmech );
619                                         }
620                               }
621 
622                               if( saslrc == SASL_INTERACT ) {
623                                         int res;
624                                         if( !interact ) break;
625                                         res = (interact)( ld, flags, defaults, prompts );
626 
627                                         if( res != LDAP_SUCCESS ) break;
628                               }
629                     } while ( saslrc == SASL_INTERACT );
630                     rc = LDAP_SASL_BIND_IN_PROGRESS;
631 
632           } else {
633                     /* continuing an in-progress Bind */
634                     struct berval *scred = NULL;
635 
636                     ctx = ld->ld_defconn->lconn_sasl_authctx;
637 
638                     rc = ldap_parse_sasl_bind_result( ld, result, &scred, 0 );
639                     if ( rc != LDAP_SUCCESS ) {
640                               if ( scred )
641                                         ber_bvfree( scred );
642                               goto done;
643                     }
644 
645                     rc = ldap_result2error( ld, result, 0 );
646                     if ( rc != LDAP_SUCCESS && rc != LDAP_SASL_BIND_IN_PROGRESS ) {
647                               if( scred ) {
648                                         /* and server provided us with data? */
649                                         Debug2( LDAP_DEBUG_TRACE,
650                                                   "ldap_int_sasl_bind: rc=%d len=%ld\n",
651                                                   rc, scred ? (long) scred->bv_len : -1L );
652                                         ber_bvfree( scred );
653                                         scred = NULL;
654                               }
655                               goto done;
656                     }
657 
658                     mech = *rmech;
659                     if ( rc == LDAP_SUCCESS && mech == NULL ) {
660                               if ( scred )
661                                         ber_bvfree( scred );
662                               goto success;
663                     }
664 
665                     do {
666                               if( ! scred ) {
667                                         /* no data! */
668                                         Debug0( LDAP_DEBUG_TRACE,
669                                                   "ldap_int_sasl_bind: no data in step!\n" );
670                               }
671 
672                               saslrc = sasl_client_step( ctx,
673                                         (scred == NULL) ? NULL : scred->bv_val,
674                                         (scred == NULL) ? 0 : scred->bv_len,
675                                         &prompts,
676                                         (SASL_CONST char **)&ccred.bv_val,
677                                         &credlen );
678 
679                               Debug1( LDAP_DEBUG_TRACE, "sasl_client_step: %d\n",
680                                         saslrc );
681 
682                               if( saslrc == SASL_INTERACT ) {
683                                         int res;
684                                         if( !interact ) break;
685                                         res = (interact)( ld, flags, defaults, prompts );
686                                         if( res != LDAP_SUCCESS ) break;
687                               }
688                     } while ( saslrc == SASL_INTERACT );
689 
690                     ber_bvfree( scred );
691           }
692 
693           if ( (saslrc != SASL_OK) && (saslrc != SASL_CONTINUE) ) {
694                     rc = ld->ld_errno = sasl_err2ldap( saslrc );
695 #if SASL_VERSION_MAJOR >= 2
696                     if ( ld->ld_error ) {
697                               LDAP_FREE( ld->ld_error );
698                     }
699                     ld->ld_error = LDAP_STRDUP( sasl_errdetail( ctx ) );
700 #endif
701                     goto done;
702           }
703 
704           if ( saslrc == SASL_OK )
705                     *rmech = NULL;
706 
707           ccred.bv_len = credlen;
708 
709           if ( rc == LDAP_SASL_BIND_IN_PROGRESS ) {
710                     rc = ldap_sasl_bind( ld, dn, mech, &ccred, sctrls, cctrls, msgid );
711 
712                     if ( ccred.bv_val != NULL ) {
713 #if SASL_VERSION_MAJOR < 2
714                               LDAP_FREE( ccred.bv_val );
715 #endif
716                               ccred.bv_val = NULL;
717                     }
718                     if ( rc == LDAP_SUCCESS )
719                               rc = LDAP_SASL_BIND_IN_PROGRESS;
720                     goto done;
721           }
722 
723 success:
724           /* Conversation was completed successfully by now */
725           if( flags != LDAP_SASL_QUIET ) {
726                     char *data;
727                     saslrc = sasl_getprop( ctx, SASL_USERNAME,
728                               (SASL_CONST void **)(char *) &data );
729                     if( saslrc == SASL_OK && data && *data ) {
730                               fprintf( stderr, "SASL username: %s\n", data );
731                     }
732 
733 #if SASL_VERSION_MAJOR < 2
734                     saslrc = sasl_getprop( ctx, SASL_REALM,
735                               (SASL_CONST void **) &data );
736                     if( saslrc == SASL_OK && data && *data ) {
737                               fprintf( stderr, "SASL realm: %s\n", data );
738                     }
739 #endif
740           }
741 
742           ssf = NULL;
743           saslrc = sasl_getprop( ctx, SASL_SSF, (SASL_CONST void **)(char *) &ssf );
744           if( saslrc == SASL_OK ) {
745                     if( flags != LDAP_SASL_QUIET ) {
746                               fprintf( stderr, "SASL SSF: %lu\n",
747                                         (unsigned long) *ssf );
748                     }
749 
750                     if( ssf && *ssf ) {
751                               if ( ld->ld_defconn->lconn_sasl_sockctx ) {
752                                         sasl_conn_t         *oldctx = ld->ld_defconn->lconn_sasl_sockctx;
753                                         sasl_dispose( &oldctx );
754                                         ldap_pvt_sasl_remove( ld->ld_defconn->lconn_sb );
755                               }
756                               ldap_pvt_sasl_install( ld->ld_defconn->lconn_sb, ctx );
757                               ld->ld_defconn->lconn_sasl_sockctx = ctx;
758 
759                               if( flags != LDAP_SASL_QUIET ) {
760                                         fprintf( stderr, "SASL data security layer installed.\n" );
761                               }
762                     }
763           }
764           ld->ld_defconn->lconn_sasl_authctx = ctx;
765 
766 done:
767           return rc;
768 }
769 
770 int
ldap_int_sasl_external(LDAP * ld,LDAPConn * conn,const char * authid,ber_len_t ssf)771 ldap_int_sasl_external(
772           LDAP *ld,
773           LDAPConn *conn,
774           const char * authid,
775           ber_len_t ssf )
776 {
777           int sc;
778           sasl_conn_t *ctx;
779 #if SASL_VERSION_MAJOR < 2
780           sasl_external_properties_t extprops;
781 #else
782           sasl_ssf_t sasl_ssf = ssf;
783 #endif
784 
785           ctx = conn->lconn_sasl_authctx;
786 
787           if ( ctx == NULL ) {
788                     return LDAP_LOCAL_ERROR;
789           }
790 
791 #if SASL_VERSION_MAJOR >= 2
792           sc = sasl_setprop( ctx, SASL_SSF_EXTERNAL, &sasl_ssf );
793           if ( sc == SASL_OK )
794                     sc = sasl_setprop( ctx, SASL_AUTH_EXTERNAL, authid );
795 #else
796           memset( &extprops, '\0', sizeof(extprops) );
797           extprops.ssf = ssf;
798           extprops.auth_id = (char *) authid;
799 
800           sc = sasl_setprop( ctx, SASL_SSF_EXTERNAL,
801                     (void *) &extprops );
802 #endif
803 
804           if ( sc != SASL_OK ) {
805                     return LDAP_LOCAL_ERROR;
806           }
807 
808           return LDAP_SUCCESS;
809 }
810 
811 
812 #define GOT_MINSSF  1
813 #define   GOT_MAXSSF          2
814 #define   GOT_MAXBUF          4
815 
816 static struct {
817           struct berval key;
818           int sflag;
819           int ival;
820           int idef;
821 } sprops[] = {
822           { BER_BVC("none"), 0, 0, 0 },
823           { BER_BVC("nodict"), SASL_SEC_NODICTIONARY, 0, 0 },
824           { BER_BVC("noplain"), SASL_SEC_NOPLAINTEXT, 0, 0 },
825           { BER_BVC("noactive"), SASL_SEC_NOACTIVE, 0, 0 },
826           { BER_BVC("passcred"), SASL_SEC_PASS_CREDENTIALS, 0, 0 },
827           { BER_BVC("forwardsec"), SASL_SEC_FORWARD_SECRECY, 0, 0 },
828           { BER_BVC("noanonymous"), SASL_SEC_NOANONYMOUS, 0, 0 },
829           { BER_BVC("minssf="), 0, GOT_MINSSF, 0 },
830           { BER_BVC("maxssf="), 0, GOT_MAXSSF, INT_MAX },
831           { BER_BVC("maxbufsize="), 0, GOT_MAXBUF, 65536 },
832           { BER_BVNULL, 0, 0, 0 }
833 };
834 
ldap_pvt_sasl_secprops_unparse(sasl_security_properties_t * secprops,struct berval * out)835 void ldap_pvt_sasl_secprops_unparse(
836           sasl_security_properties_t *secprops,
837           struct berval *out )
838 {
839           int i, l = 0;
840           int comma;
841           char *ptr;
842 
843           if ( secprops == NULL || out == NULL ) {
844                     return;
845           }
846 
847           comma = 0;
848           for ( i=0; !BER_BVISNULL( &sprops[i].key ); i++ ) {
849                     if ( sprops[i].ival ) {
850                               int v = 0;
851 
852                               switch( sprops[i].ival ) {
853                               case GOT_MINSSF: v = secprops->min_ssf; break;
854                               case GOT_MAXSSF: v = secprops->max_ssf; break;
855                               case GOT_MAXBUF: v = secprops->maxbufsize; break;
856                               }
857                               /* It is the default, ignore it */
858                               if ( v == sprops[i].idef ) continue;
859 
860                               l += sprops[i].key.bv_len + 24;
861                     } else if ( sprops[i].sflag ) {
862                               if ( sprops[i].sflag & secprops->security_flags ) {
863                                         l += sprops[i].key.bv_len;
864                               }
865                     } else if ( secprops->security_flags == 0 ) {
866                               l += sprops[i].key.bv_len;
867                     }
868                     if ( comma ) l++;
869                     comma = 1;
870           }
871           l++;
872 
873           out->bv_val = LDAP_MALLOC( l );
874           if ( out->bv_val == NULL ) {
875                     out->bv_len = 0;
876                     return;
877           }
878 
879           ptr = out->bv_val;
880           comma = 0;
881           for ( i=0; !BER_BVISNULL( &sprops[i].key ); i++ ) {
882                     if ( sprops[i].ival ) {
883                               int v = 0;
884 
885                               switch( sprops[i].ival ) {
886                               case GOT_MINSSF: v = secprops->min_ssf; break;
887                               case GOT_MAXSSF: v = secprops->max_ssf; break;
888                               case GOT_MAXBUF: v = secprops->maxbufsize; break;
889                               }
890                               /* It is the default, ignore it */
891                               if ( v == sprops[i].idef ) continue;
892 
893                               if ( comma ) *ptr++ = ',';
894                               ptr += sprintf(ptr, "%s%d", sprops[i].key.bv_val, v );
895                               comma = 1;
896                     } else if ( sprops[i].sflag ) {
897                               if ( sprops[i].sflag & secprops->security_flags ) {
898                                         if ( comma ) *ptr++ = ',';
899                                         ptr += sprintf(ptr, "%s", sprops[i].key.bv_val );
900                                         comma = 1;
901                               }
902                     } else if ( secprops->security_flags == 0 ) {
903                               if ( comma ) *ptr++ = ',';
904                               ptr += sprintf(ptr, "%s", sprops[i].key.bv_val );
905                               comma = 1;
906                     }
907           }
908           out->bv_len = ptr - out->bv_val;
909 }
910 
ldap_pvt_sasl_secprops(const char * in,sasl_security_properties_t * secprops)911 int ldap_pvt_sasl_secprops(
912           const char *in,
913           sasl_security_properties_t *secprops )
914 {
915           unsigned i, j, l;
916           char **props;
917           unsigned sflags = 0;
918           int got_sflags = 0;
919           sasl_ssf_t max_ssf = 0;
920           int got_max_ssf = 0;
921           sasl_ssf_t min_ssf = 0;
922           int got_min_ssf = 0;
923           unsigned maxbufsize = 0;
924           int got_maxbufsize = 0;
925 
926           if( secprops == NULL ) {
927                     return LDAP_PARAM_ERROR;
928           }
929           props = ldap_str2charray( in, "," );
930           if( props == NULL ) {
931                     return LDAP_PARAM_ERROR;
932           }
933 
934           for( i=0; props[i]; i++ ) {
935                     l = strlen( props[i] );
936                     for ( j=0; !BER_BVISNULL( &sprops[j].key ); j++ ) {
937                               if ( l < sprops[j].key.bv_len ) continue;
938                               if ( strncasecmp( props[i], sprops[j].key.bv_val,
939                                         sprops[j].key.bv_len )) continue;
940                               if ( sprops[j].ival ) {
941                                         unsigned v;
942                                         char *next = NULL;
943                                         if ( !isdigit( (unsigned char)props[i][sprops[j].key.bv_len] ))
944                                                   continue;
945                                         v = strtoul( &props[i][sprops[j].key.bv_len], &next, 10 );
946                                         if ( next == &props[i][sprops[j].key.bv_len] || next[0] != '\0' ) continue;
947                                         switch( sprops[j].ival ) {
948                                         case GOT_MINSSF:
949                                                   min_ssf = v; got_min_ssf++; break;
950                                         case GOT_MAXSSF:
951                                                   max_ssf = v; got_max_ssf++; break;
952                                         case GOT_MAXBUF:
953                                                   maxbufsize = v; got_maxbufsize++; break;
954                                         }
955                               } else {
956                                         if ( props[i][sprops[j].key.bv_len] ) continue;
957                                         if ( sprops[j].sflag )
958                                                   sflags |= sprops[j].sflag;
959                                         else
960                                                   sflags = 0;
961                                         got_sflags++;
962                               }
963                               break;
964                     }
965                     if ( BER_BVISNULL( &sprops[j].key )) {
966                               ldap_charray_free( props );
967                               return LDAP_NOT_SUPPORTED;
968                     }
969           }
970 
971           if(got_sflags) {
972                     secprops->security_flags = sflags;
973           }
974           if(got_min_ssf) {
975                     secprops->min_ssf = min_ssf;
976           }
977           if(got_max_ssf) {
978                     secprops->max_ssf = max_ssf;
979           }
980           if(got_maxbufsize) {
981                     secprops->maxbufsize = maxbufsize;
982           }
983 
984           ldap_charray_free( props );
985           return LDAP_SUCCESS;
986 }
987 
988 int
ldap_int_sasl_config(struct ldapoptions * lo,int option,const char * arg)989 ldap_int_sasl_config( struct ldapoptions *lo, int option, const char *arg )
990 {
991           int rc, i;
992 
993           switch( option ) {
994           case LDAP_OPT_X_SASL_SECPROPS:
995                     rc = ldap_pvt_sasl_secprops( arg, &lo->ldo_sasl_secprops );
996                     if( rc == LDAP_SUCCESS ) return 0;
997                     break;
998           case LDAP_OPT_X_SASL_CBINDING:
999                     i = ldap_pvt_sasl_cbinding_parse( arg );
1000                     if ( i >= 0 ) {
1001                               lo->ldo_sasl_cbinding = i;
1002                               return 0;
1003                     }
1004                     break;
1005           }
1006 
1007           return -1;
1008 }
1009 
1010 int
ldap_int_sasl_get_option(LDAP * ld,int option,void * arg)1011 ldap_int_sasl_get_option( LDAP *ld, int option, void *arg )
1012 {
1013           if ( option == LDAP_OPT_X_SASL_MECHLIST ) {
1014                     *(char ***)arg = (char **)sasl_global_listmech();
1015                     return 0;
1016           }
1017 
1018           if ( ld == NULL )
1019                     return -1;
1020 
1021           switch ( option ) {
1022                     case LDAP_OPT_X_SASL_MECH: {
1023                               *(char **)arg = ld->ld_options.ldo_def_sasl_mech
1024                                         ? LDAP_STRDUP( ld->ld_options.ldo_def_sasl_mech ) : NULL;
1025                     } break;
1026                     case LDAP_OPT_X_SASL_REALM: {
1027                               *(char **)arg = ld->ld_options.ldo_def_sasl_realm
1028                                         ? LDAP_STRDUP( ld->ld_options.ldo_def_sasl_realm ) : NULL;
1029                     } break;
1030                     case LDAP_OPT_X_SASL_AUTHCID: {
1031                               *(char **)arg = ld->ld_options.ldo_def_sasl_authcid
1032                                         ? LDAP_STRDUP( ld->ld_options.ldo_def_sasl_authcid ) : NULL;
1033                     } break;
1034                     case LDAP_OPT_X_SASL_AUTHZID: {
1035                               *(char **)arg = ld->ld_options.ldo_def_sasl_authzid
1036                                         ? LDAP_STRDUP( ld->ld_options.ldo_def_sasl_authzid ) : NULL;
1037                     } break;
1038 
1039                     case LDAP_OPT_X_SASL_SSF: {
1040                               int sc;
1041                               sasl_ssf_t          *ssf;
1042                               sasl_conn_t *ctx;
1043 
1044                               if( ld->ld_defconn == NULL ) {
1045                                         return -1;
1046                               }
1047 
1048                               ctx = ld->ld_defconn->lconn_sasl_sockctx;
1049 
1050                               if ( ctx == NULL ) {
1051                                         return -1;
1052                               }
1053 
1054                               sc = sasl_getprop( ctx, SASL_SSF,
1055                                         (SASL_CONST void **)(char *) &ssf );
1056 
1057                               if ( sc != SASL_OK ) {
1058                                         return -1;
1059                               }
1060 
1061                               *(ber_len_t *)arg = *ssf;
1062                     } break;
1063 
1064                     case LDAP_OPT_X_SASL_SSF_EXTERNAL:
1065                               /* this option is write only */
1066                               return -1;
1067 
1068                     case LDAP_OPT_X_SASL_SSF_MIN:
1069                               *(ber_len_t *)arg = ld->ld_options.ldo_sasl_secprops.min_ssf;
1070                               break;
1071                     case LDAP_OPT_X_SASL_SSF_MAX:
1072                               *(ber_len_t *)arg = ld->ld_options.ldo_sasl_secprops.max_ssf;
1073                               break;
1074                     case LDAP_OPT_X_SASL_MAXBUFSIZE:
1075                               *(ber_len_t *)arg = ld->ld_options.ldo_sasl_secprops.maxbufsize;
1076                               break;
1077                     case LDAP_OPT_X_SASL_NOCANON:
1078                               *(int *)arg = (int) LDAP_BOOL_GET(&ld->ld_options, LDAP_BOOL_SASL_NOCANON );
1079                               break;
1080 
1081                     case LDAP_OPT_X_SASL_USERNAME: {
1082                               int sc;
1083                               char *username;
1084                               sasl_conn_t *ctx;
1085 
1086                               if( ld->ld_defconn == NULL ) {
1087                                         return -1;
1088                               }
1089 
1090                               ctx = ld->ld_defconn->lconn_sasl_authctx;
1091 
1092                               if ( ctx == NULL ) {
1093                                         return -1;
1094                               }
1095 
1096                               sc = sasl_getprop( ctx, SASL_USERNAME,
1097                                         (SASL_CONST void **)(char **) &username );
1098 
1099                               if ( sc != SASL_OK ) {
1100                                         return -1;
1101                               }
1102 
1103                               *(char **)arg = username ? LDAP_STRDUP( username ) : NULL;
1104                     } break;
1105 
1106                     case LDAP_OPT_X_SASL_SECPROPS:
1107                               /* this option is write only */
1108                               return -1;
1109 
1110                     case LDAP_OPT_X_SASL_CBINDING:
1111                               *(int *)arg = ld->ld_options.ldo_sasl_cbinding;
1112                               break;
1113 
1114 #ifdef SASL_GSS_CREDS
1115                     case LDAP_OPT_X_SASL_GSS_CREDS: {
1116                               sasl_conn_t *ctx;
1117                               int sc;
1118 
1119                               if ( ld->ld_defconn == NULL )
1120                                         return -1;
1121 
1122                               ctx = ld->ld_defconn->lconn_sasl_authctx;
1123                               if ( ctx == NULL )
1124                                         return -1;
1125 
1126                               sc = sasl_getprop( ctx, SASL_GSS_CREDS, arg );
1127                               if ( sc != SASL_OK )
1128                                         return -1;
1129                               }
1130                               break;
1131 #endif
1132 
1133                     default:
1134                               return -1;
1135           }
1136           return 0;
1137 }
1138 
1139 int
ldap_int_sasl_set_option(LDAP * ld,int option,void * arg)1140 ldap_int_sasl_set_option( LDAP *ld, int option, void *arg )
1141 {
1142           if ( ld == NULL )
1143                     return -1;
1144 
1145           if ( arg == NULL && option != LDAP_OPT_X_SASL_NOCANON )
1146                     return -1;
1147 
1148           switch ( option ) {
1149           case LDAP_OPT_X_SASL_SSF:
1150           case LDAP_OPT_X_SASL_USERNAME:
1151                     /* This option is read-only */
1152                     return -1;
1153 
1154           case LDAP_OPT_X_SASL_SSF_EXTERNAL: {
1155                     int sc;
1156 #if SASL_VERSION_MAJOR < 2
1157                     sasl_external_properties_t extprops;
1158 #else
1159                     sasl_ssf_t sasl_ssf;
1160 #endif
1161                     sasl_conn_t *ctx;
1162 
1163                     if( ld->ld_defconn == NULL ) {
1164                               return -1;
1165                     }
1166 
1167                     ctx = ld->ld_defconn->lconn_sasl_authctx;
1168 
1169                     if ( ctx == NULL ) {
1170                               return -1;
1171                     }
1172 
1173 #if SASL_VERSION_MAJOR >= 2
1174                     sasl_ssf = * (ber_len_t *)arg;
1175                     sc = sasl_setprop( ctx, SASL_SSF_EXTERNAL, &sasl_ssf);
1176 #else
1177                     memset(&extprops, 0L, sizeof(extprops));
1178 
1179                     extprops.ssf = * (ber_len_t *) arg;
1180 
1181                     sc = sasl_setprop( ctx, SASL_SSF_EXTERNAL,
1182                               (void *) &extprops );
1183 #endif
1184 
1185                     if ( sc != SASL_OK ) {
1186                               return -1;
1187                     }
1188                     } break;
1189 
1190           case LDAP_OPT_X_SASL_SSF_MIN:
1191                     ld->ld_options.ldo_sasl_secprops.min_ssf = *(ber_len_t *)arg;
1192                     break;
1193           case LDAP_OPT_X_SASL_SSF_MAX:
1194                     ld->ld_options.ldo_sasl_secprops.max_ssf = *(ber_len_t *)arg;
1195                     break;
1196           case LDAP_OPT_X_SASL_MAXBUFSIZE:
1197                     ld->ld_options.ldo_sasl_secprops.maxbufsize = *(ber_len_t *)arg;
1198                     break;
1199           case LDAP_OPT_X_SASL_NOCANON:
1200                     if ( arg == LDAP_OPT_OFF ) {
1201                               LDAP_BOOL_CLR(&ld->ld_options, LDAP_BOOL_SASL_NOCANON );
1202                     } else {
1203                               LDAP_BOOL_SET(&ld->ld_options, LDAP_BOOL_SASL_NOCANON );
1204                     }
1205                     break;
1206 
1207           case LDAP_OPT_X_SASL_SECPROPS: {
1208                     int sc;
1209                     sc = ldap_pvt_sasl_secprops( (char *) arg,
1210                               &ld->ld_options.ldo_sasl_secprops );
1211 
1212                     return sc == LDAP_SUCCESS ? 0 : -1;
1213                     }
1214 
1215           case LDAP_OPT_X_SASL_CBINDING:
1216                     if ( !arg ) return -1;
1217                     switch( *(int *) arg ) {
1218                     case LDAP_OPT_X_SASL_CBINDING_NONE:
1219                     case LDAP_OPT_X_SASL_CBINDING_TLS_UNIQUE:
1220                     case LDAP_OPT_X_SASL_CBINDING_TLS_ENDPOINT:
1221                               ld->ld_options.ldo_sasl_cbinding = *(int *) arg;
1222                               return 0;
1223                     }
1224                     return -1;
1225 
1226 #ifdef SASL_GSS_CREDS
1227           case LDAP_OPT_X_SASL_GSS_CREDS: {
1228                     sasl_conn_t *ctx;
1229                     int sc;
1230 
1231                     if ( ld->ld_defconn == NULL )
1232                               return -1;
1233 
1234                     ctx = ld->ld_defconn->lconn_sasl_authctx;
1235                     if ( ctx == NULL )
1236                               return -1;
1237 
1238                     sc = sasl_setprop( ctx, SASL_GSS_CREDS, arg );
1239                     if ( sc != SASL_OK )
1240                               return -1;
1241                     }
1242                     break;
1243 #endif
1244 
1245           default:
1246                     return -1;
1247           }
1248           return 0;
1249 }
1250 
1251 #ifdef LDAP_R_COMPILE
1252 #define LDAP_DEBUG_R_SASL
ldap_pvt_sasl_mutex_new(void)1253 void *ldap_pvt_sasl_mutex_new(void)
1254 {
1255           ldap_pvt_thread_mutex_t *mutex;
1256 
1257           mutex = (ldap_pvt_thread_mutex_t *) LDAP_CALLOC( 1,
1258                     sizeof(ldap_pvt_thread_mutex_t) );
1259 
1260           if ( ldap_pvt_thread_mutex_init( mutex ) == 0 ) {
1261                     return mutex;
1262           }
1263           LDAP_FREE( mutex );
1264 #ifndef LDAP_DEBUG_R_SASL
1265           assert( 0 );
1266 #endif /* !LDAP_DEBUG_R_SASL */
1267           return NULL;
1268 }
1269 
ldap_pvt_sasl_mutex_lock(void * mutex)1270 int ldap_pvt_sasl_mutex_lock(void *mutex)
1271 {
1272 #ifdef LDAP_DEBUG_R_SASL
1273           if ( mutex == NULL ) {
1274                     return SASL_OK;
1275           }
1276 #else /* !LDAP_DEBUG_R_SASL */
1277           assert( mutex != NULL );
1278 #endif /* !LDAP_DEBUG_R_SASL */
1279           return ldap_pvt_thread_mutex_lock( (ldap_pvt_thread_mutex_t *)mutex )
1280                     ? SASL_FAIL : SASL_OK;
1281 }
1282 
ldap_pvt_sasl_mutex_unlock(void * mutex)1283 int ldap_pvt_sasl_mutex_unlock(void *mutex)
1284 {
1285 #ifdef LDAP_DEBUG_R_SASL
1286           if ( mutex == NULL ) {
1287                     return SASL_OK;
1288           }
1289 #else /* !LDAP_DEBUG_R_SASL */
1290           assert( mutex != NULL );
1291 #endif /* !LDAP_DEBUG_R_SASL */
1292           return ldap_pvt_thread_mutex_unlock( (ldap_pvt_thread_mutex_t *)mutex )
1293                     ? SASL_FAIL : SASL_OK;
1294 }
1295 
ldap_pvt_sasl_mutex_dispose(void * mutex)1296 void ldap_pvt_sasl_mutex_dispose(void *mutex)
1297 {
1298 #ifdef LDAP_DEBUG_R_SASL
1299           if ( mutex == NULL ) {
1300                     return;
1301           }
1302 #else /* !LDAP_DEBUG_R_SASL */
1303           assert( mutex != NULL );
1304 #endif /* !LDAP_DEBUG_R_SASL */
1305           (void) ldap_pvt_thread_mutex_destroy( (ldap_pvt_thread_mutex_t *)mutex );
1306           LDAP_FREE( mutex );
1307 }
1308 #endif
1309 
1310 #else
ldap_int_sasl_init(void)1311 int ldap_int_sasl_init( void )
1312 { return LDAP_SUCCESS; }
1313 
ldap_int_sasl_close(LDAP * ld,LDAPConn * lc)1314 int ldap_int_sasl_close( LDAP *ld, LDAPConn *lc )
1315 { return LDAP_SUCCESS; }
1316 
1317 int
ldap_int_sasl_bind(LDAP * ld,const char * dn,const char * mechs,LDAPControl ** sctrls,LDAPControl ** cctrls,unsigned flags,LDAP_SASL_INTERACT_PROC * interact,void * defaults,LDAPMessage * result,const char ** rmech,int * msgid)1318 ldap_int_sasl_bind(
1319           LDAP                          *ld,
1320           const char                    *dn,
1321           const char                    *mechs,
1322           LDAPControl                   **sctrls,
1323           LDAPControl                   **cctrls,
1324           unsigned            flags,
1325           LDAP_SASL_INTERACT_PROC *interact,
1326           void                          *defaults,
1327           LDAPMessage                   *result,
1328           const char                    **rmech,
1329           int                                     *msgid )
1330 { return LDAP_NOT_SUPPORTED; }
1331 
1332 int
ldap_int_sasl_external(LDAP * ld,LDAPConn * conn,const char * authid,ber_len_t ssf)1333 ldap_int_sasl_external(
1334           LDAP *ld,
1335           LDAPConn *conn,
1336           const char * authid,
1337           ber_len_t ssf )
1338 { return LDAP_SUCCESS; }
1339 
1340 #endif /* HAVE_CYRUS_SASL */
1341