2 /* This work is part of OpenLDAP Software <http://www.openldap.org/>.
4 * Copyright 1998-2006 The OpenLDAP Foundation.
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted only as authorized by the OpenLDAP
11 * A copy of this license is available in the file LICENSE in the
12 * top-level directory of the distribution or, alternatively, at
13 * <http://www.OpenLDAP.org/license.html>.
20 #include <ac/socket.h>
21 #include <ac/stdlib.h>
22 #include <ac/string.h>
26 #include <ac/unistd.h>
34 #ifdef HAVE_CYRUS_SASL
41 #define INT_MAX 2147483647 /* 32 bit signed max */
45 ldap_pvt_thread_mutex_t ldap_int_sasl_mutex;
48 #ifdef HAVE_SASL_SASL_H
49 #include <sasl/sasl.h>
54 #if SASL_VERSION_MAJOR >= 2
55 #define SASL_CONST const
61 * Various Cyrus SASL related stuff.
64 static const sasl_callback_t client_callbacks[] = {
65 #ifdef SASL_CB_GETREALM
66 { SASL_CB_GETREALM, NULL, NULL },
68 { SASL_CB_USER, NULL, NULL },
69 { SASL_CB_AUTHNAME, NULL, NULL },
70 { SASL_CB_PASS, NULL, NULL },
71 { SASL_CB_ECHOPROMPT, NULL, NULL },
72 { SASL_CB_NOECHOPROMPT, NULL, NULL },
73 { SASL_CB_LIST_END, NULL, NULL }
76 int ldap_int_sasl_init( void )
78 /* XXX not threadsafe */
79 static int sasl_initialized = 0;
81 #ifdef HAVE_SASL_VERSION
82 /* stringify the version number, sasl.h doesn't do it for us */
83 #define VSTR0(maj, min, pat) #maj "." #min "." #pat
84 #define VSTR(maj, min, pat) VSTR0(maj, min, pat)
85 #define SASL_VERSION_STRING VSTR(SASL_VERSION_MAJOR, SASL_VERSION_MINOR, \
88 sasl_version( NULL, &rc );
89 if ( ((rc >> 16) != ((SASL_VERSION_MAJOR << 8)|SASL_VERSION_MINOR)) ||
90 (rc & 0xffff) < SASL_VERSION_STEP) {
91 char version[sizeof("xxx.xxx.xxxxx")];
92 sprintf( version, "%u.%d.%d", (unsigned)rc >> 24, (rc >> 16) & 0xff,
95 Debug( LDAP_DEBUG_ANY,
96 "ldap_int_sasl_init: SASL library version mismatch:"
97 " expected " SASL_VERSION_STRING ","
98 " got %s\n", version, 0, 0 );
103 if ( sasl_initialized ) {
107 /* SASL 2 takes care of its own memory completely internally */
108 #if SASL_VERSION_MAJOR < 2 && !defined(CSRIMALLOC)
114 #endif /* CSRIMALLOC */
116 #ifdef LDAP_R_COMPILE
118 ldap_pvt_sasl_mutex_new,
119 ldap_pvt_sasl_mutex_lock,
120 ldap_pvt_sasl_mutex_unlock,
121 ldap_pvt_sasl_mutex_dispose );
124 if ( sasl_client_init( NULL ) == SASL_OK ) {
125 sasl_initialized = 1;
129 #if SASL_VERSION_MAJOR < 2
130 /* A no-op to make sure we link with Cyrus 1.5 */
131 sasl_client_auth( NULL, NULL, NULL, 0, NULL, NULL );
137 * SASL encryption support for LBER Sockbufs
140 struct sb_sasl_data {
141 sasl_conn_t *sasl_context;
142 unsigned *sasl_maxbuf;
143 Sockbuf_Buf sec_buf_in;
149 sb_sasl_setup( Sockbuf_IO_Desc *sbiod, void *arg )
151 struct sb_sasl_data *p;
153 assert( sbiod != NULL );
155 p = LBER_MALLOC( sizeof( *p ) );
158 p->sasl_context = (sasl_conn_t *)arg;
159 ber_pvt_sb_buf_init( &p->sec_buf_in );
160 ber_pvt_sb_buf_init( &p->buf_in );
161 ber_pvt_sb_buf_init( &p->buf_out );
162 if ( ber_pvt_sb_grow_buffer( &p->sec_buf_in, SASL_MIN_BUFF_SIZE ) < 0 ) {
167 sasl_getprop( p->sasl_context, SASL_MAXOUTBUF,
168 (SASL_CONST void **) &p->sasl_maxbuf );
170 sbiod->sbiod_pvt = p;
176 sb_sasl_remove( Sockbuf_IO_Desc *sbiod )
178 struct sb_sasl_data *p;
180 assert( sbiod != NULL );
182 p = (struct sb_sasl_data *)sbiod->sbiod_pvt;
183 #if SASL_VERSION_MAJOR >= 2
185 * SASLv2 encode/decode buffers are managed by
186 * libsasl2. Ensure they are not freed by liblber.
188 p->buf_in.buf_base = NULL;
189 p->buf_out.buf_base = NULL;
191 ber_pvt_sb_buf_destroy( &p->sec_buf_in );
192 ber_pvt_sb_buf_destroy( &p->buf_in );
193 ber_pvt_sb_buf_destroy( &p->buf_out );
195 sbiod->sbiod_pvt = NULL;
200 sb_sasl_pkt_length( const unsigned char *buf, int debuglevel )
204 assert( buf != NULL );
211 if ( size > SASL_MAX_BUFF_SIZE ) {
212 /* somebody is trying to mess me up. */
213 ber_log_printf( LDAP_DEBUG_ANY, debuglevel,
214 "sb_sasl_pkt_length: received illegal packet length "
215 "of %lu bytes\n", (unsigned long)size );
216 size = 16; /* this should lead to an error. */
219 return size + 4; /* include the size !!! */
222 /* Drop a processed packet from the input buffer */
224 sb_sasl_drop_packet ( Sockbuf_Buf *sec_buf_in, int debuglevel )
228 len = sec_buf_in->buf_ptr - sec_buf_in->buf_end;
230 AC_MEMCPY( sec_buf_in->buf_base, sec_buf_in->buf_base +
231 sec_buf_in->buf_end, len );
234 sec_buf_in->buf_end = sb_sasl_pkt_length(
235 (unsigned char *) sec_buf_in->buf_base, debuglevel);
238 sec_buf_in->buf_end = 0;
240 sec_buf_in->buf_ptr = len;
244 sb_sasl_read( Sockbuf_IO_Desc *sbiod, void *buf, ber_len_t len)
246 struct sb_sasl_data *p;
247 ber_slen_t ret, bufptr;
249 assert( sbiod != NULL );
250 assert( SOCKBUF_VALID( sbiod->sbiod_sb ) );
252 p = (struct sb_sasl_data *)sbiod->sbiod_pvt;
254 /* Are there anything left in the buffer? */
255 ret = ber_pvt_sb_copy_out( &p->buf_in, buf, len );
262 #if SASL_VERSION_MAJOR >= 2
263 ber_pvt_sb_buf_init( &p->buf_in );
265 ber_pvt_sb_buf_destroy( &p->buf_in );
268 /* Read the length of the packet */
269 while ( p->sec_buf_in.buf_ptr < 4 ) {
270 ret = LBER_SBIOD_READ_NEXT( sbiod, p->sec_buf_in.buf_base +
271 p->sec_buf_in.buf_ptr,
272 4 - p->sec_buf_in.buf_ptr );
274 if ( ( ret < 0 ) && ( errno == EINTR ) )
278 return bufptr ? bufptr : ret;
280 p->sec_buf_in.buf_ptr += ret;
283 /* The new packet always starts at p->sec_buf_in.buf_base */
284 ret = sb_sasl_pkt_length( (unsigned char *) p->sec_buf_in.buf_base,
285 sbiod->sbiod_sb->sb_debug );
287 /* Grow the packet buffer if neccessary */
288 if ( ( p->sec_buf_in.buf_size < (ber_len_t) ret ) &&
289 ber_pvt_sb_grow_buffer( &p->sec_buf_in, ret ) < 0 )
294 p->sec_buf_in.buf_end = ret;
296 /* Did we read the whole encrypted packet? */
297 while ( p->sec_buf_in.buf_ptr < p->sec_buf_in.buf_end ) {
298 /* No, we have got only a part of it */
299 ret = p->sec_buf_in.buf_end - p->sec_buf_in.buf_ptr;
301 ret = LBER_SBIOD_READ_NEXT( sbiod, p->sec_buf_in.buf_base +
302 p->sec_buf_in.buf_ptr, ret );
304 if ( ( ret < 0 ) && ( errno == EINTR ) )
308 return bufptr ? bufptr : ret;
310 p->sec_buf_in.buf_ptr += ret;
313 /* Decode the packet */
315 unsigned tmpsize = p->buf_in.buf_end;
316 ret = sasl_decode( p->sasl_context, p->sec_buf_in.buf_base,
317 p->sec_buf_in.buf_end,
318 (SASL_CONST char **)&p->buf_in.buf_base,
319 (unsigned *)&tmpsize );
320 p->buf_in.buf_end = tmpsize;
323 /* Drop the packet from the input buffer */
324 sb_sasl_drop_packet( &p->sec_buf_in, sbiod->sbiod_sb->sb_debug );
326 if ( ret != SASL_OK ) {
327 ber_log_printf( LDAP_DEBUG_ANY, sbiod->sbiod_sb->sb_debug,
328 "sb_sasl_read: failed to decode packet: %s\n",
329 sasl_errstring( ret, NULL, NULL ) );
334 p->buf_in.buf_size = p->buf_in.buf_end;
336 bufptr += ber_pvt_sb_copy_out( &p->buf_in, (char*) buf + bufptr, len );
342 sb_sasl_write( Sockbuf_IO_Desc *sbiod, void *buf, ber_len_t len)
344 struct sb_sasl_data *p;
347 assert( sbiod != NULL );
348 assert( SOCKBUF_VALID( sbiod->sbiod_sb ) );
350 p = (struct sb_sasl_data *)sbiod->sbiod_pvt;
352 /* Are there anything left in the buffer? */
353 if ( p->buf_out.buf_ptr != p->buf_out.buf_end ) {
354 ret = ber_pvt_sb_do_write( sbiod, &p->buf_out );
355 if ( ret < 0 ) return ret;
357 /* Still have something left?? */
358 if ( p->buf_out.buf_ptr != p->buf_out.buf_end ) {
364 /* now encode the next packet. */
365 #if SASL_VERSION_MAJOR >= 2
366 ber_pvt_sb_buf_init( &p->buf_out );
368 ber_pvt_sb_buf_destroy( &p->buf_out );
370 if ( len > *p->sasl_maxbuf - 100 ) {
371 len = *p->sasl_maxbuf - 100; /* For safety margin */
375 unsigned tmpsize = p->buf_out.buf_size;
376 ret = sasl_encode( p->sasl_context, buf, len,
377 (SASL_CONST char **)&p->buf_out.buf_base,
379 p->buf_out.buf_size = tmpsize;
382 if ( ret != SASL_OK ) {
383 ber_log_printf( LDAP_DEBUG_ANY, sbiod->sbiod_sb->sb_debug,
384 "sb_sasl_write: failed to encode packet: %s\n",
385 sasl_errstring( ret, NULL, NULL ) );
389 p->buf_out.buf_end = p->buf_out.buf_size;
391 ret = ber_pvt_sb_do_write( sbiod, &p->buf_out );
393 /* return number of bytes encoded, not written, to ensure
394 * no byte is encoded twice (even if only sent once).
400 sb_sasl_ctrl( Sockbuf_IO_Desc *sbiod, int opt, void *arg )
402 struct sb_sasl_data *p;
404 p = (struct sb_sasl_data *)sbiod->sbiod_pvt;
406 if ( opt == LBER_SB_OPT_DATA_READY ) {
407 if ( p->buf_in.buf_ptr != p->buf_in.buf_end ) return 1;
410 return LBER_SBIOD_CTRL_NEXT( sbiod, opt, arg );
413 Sockbuf_IO ldap_pvt_sockbuf_io_sasl = {
414 sb_sasl_setup, /* sbi_setup */
415 sb_sasl_remove, /* sbi_remove */
416 sb_sasl_ctrl, /* sbi_ctrl */
417 sb_sasl_read, /* sbi_read */
418 sb_sasl_write, /* sbi_write */
422 int ldap_pvt_sasl_install( Sockbuf *sb, void *ctx_arg )
424 Debug( LDAP_DEBUG_TRACE, "ldap_pvt_sasl_install\n",
427 /* don't install the stuff unless security has been negotiated */
429 if ( !ber_sockbuf_ctrl( sb, LBER_SB_OPT_HAS_IO,
430 &ldap_pvt_sockbuf_io_sasl ) )
433 ber_sockbuf_add_io( sb, &ber_sockbuf_io_debug,
434 LBER_SBIOD_LEVEL_APPLICATION, (void *)"sasl_" );
436 ber_sockbuf_add_io( sb, &ldap_pvt_sockbuf_io_sasl,
437 LBER_SBIOD_LEVEL_APPLICATION, ctx_arg );
443 void ldap_pvt_sasl_remove( Sockbuf *sb )
445 ber_sockbuf_remove_io( sb, &ldap_pvt_sockbuf_io_sasl,
446 LBER_SBIOD_LEVEL_APPLICATION );
448 ber_sockbuf_remove_io( sb, &ber_sockbuf_io_debug,
449 LBER_SBIOD_LEVEL_APPLICATION );
454 sasl_err2ldap( int saslerr )
458 /* map SASL errors to LDAP API errors returned by:
460 * SASL_OK, SASL_NOMECH, SASL_NOMEM
461 * sasl_client_start()
462 * SASL_OK, SASL_NOMECH, SASL_NOMEM, SASL_INTERACT
464 * SASL_OK, SASL_INTERACT, SASL_BADPROT, SASL_BADSERV
469 rc = LDAP_MORE_RESULTS_TO_RETURN;
472 rc = LDAP_LOCAL_ERROR;
481 rc = LDAP_AUTH_UNKNOWN;
484 rc = LDAP_DECODING_ERROR;
487 rc = LDAP_AUTH_UNKNOWN;
492 rc = LDAP_AUTH_UNKNOWN;
495 rc = LDAP_PARAM_ERROR;
498 rc = LDAP_LOCAL_ERROR;
502 rc = LDAP_AUTH_UNKNOWN;
505 rc = LDAP_LOCAL_ERROR;
509 assert( rc == LDAP_SUCCESS || LDAP_API_ERROR( rc ) );
522 assert( lc->lconn_sasl_authctx == NULL );
524 if ( host == NULL ) {
525 ld->ld_errno = LDAP_LOCAL_ERROR;
529 if ( ldap_int_sasl_init() ) {
530 ld->ld_errno = LDAP_LOCAL_ERROR;
534 #if SASL_VERSION_MAJOR >= 2
535 rc = sasl_client_new( "ldap", host, NULL, NULL,
536 client_callbacks, 0, &ctx );
538 rc = sasl_client_new( "ldap", host, client_callbacks,
539 SASL_SECURITY_LAYER, &ctx );
542 if ( rc != SASL_OK ) {
543 ld->ld_errno = sasl_err2ldap( rc );
547 Debug( LDAP_DEBUG_TRACE, "ldap_int_sasl_open: host=%s\n",
550 lc->lconn_sasl_authctx = ctx;
555 int ldap_int_sasl_close( LDAP *ld, LDAPConn *lc )
557 sasl_conn_t *ctx = lc->lconn_sasl_authctx;
560 sasl_dispose( &ctx );
561 if ( lc->lconn_sasl_sockctx &&
562 lc->lconn_sasl_authctx != lc->lconn_sasl_sockctx ) {
563 ctx = lc->lconn_sasl_sockctx;
564 sasl_dispose( &ctx );
566 lc->lconn_sasl_sockctx = NULL;
567 lc->lconn_sasl_authctx = NULL;
578 LDAPControl **sctrls,
579 LDAPControl **cctrls,
581 LDAP_SASL_INTERACT_PROC *interact,
585 const char *mech = NULL;
586 const char *pmech = NULL;
588 sasl_ssf_t *ssf = NULL;
589 sasl_conn_t *ctx, *oldctx = NULL;
590 sasl_interact_t *prompts = NULL;
596 Debug( LDAP_DEBUG_TRACE, "ldap_int_sasl_bind: %s\n",
597 mechs ? mechs : "<null>", 0, 0 );
599 /* do a quick !LDAPv3 check... ldap_sasl_bind will do the rest. */
600 if (ld->ld_version < LDAP_VERSION3) {
601 ld->ld_errno = LDAP_NOT_SUPPORTED;
605 ber_sockbuf_ctrl( ld->ld_sb, LBER_SB_OPT_GET_FD, &sd );
607 if ( sd == AC_SOCKET_INVALID ) {
608 /* not connected yet */
611 rc = ldap_open_defconn( ld );
612 if( rc < 0 ) return ld->ld_errno;
614 ber_sockbuf_ctrl( ld->ld_defconn->lconn_sb,
615 LBER_SB_OPT_GET_FD, &sd );
617 if( sd == AC_SOCKET_INVALID ) {
618 ld->ld_errno = LDAP_LOCAL_ERROR;
623 oldctx = ld->ld_defconn->lconn_sasl_authctx;
625 /* If we already have an authentication context, clear it out */
627 if ( oldctx != ld->ld_defconn->lconn_sasl_sockctx ) {
628 sasl_dispose( &oldctx );
630 ld->ld_defconn->lconn_sasl_authctx = NULL;
634 char *saslhost = ldap_host_connected_to( ld->ld_defconn->lconn_sb,
636 rc = ldap_int_sasl_open( ld, ld->ld_defconn, saslhost );
637 LDAP_FREE( saslhost );
640 if ( rc != LDAP_SUCCESS ) return rc;
642 ctx = ld->ld_defconn->lconn_sasl_authctx;
645 ssl = ldap_pvt_tls_sb_ctx( ld->ld_defconn->lconn_sb );
647 struct berval authid = BER_BVNULL;
650 fac = ldap_pvt_tls_get_strength( ssl );
651 /* failure is OK, we just can't use SASL EXTERNAL */
652 (void) ldap_pvt_tls_get_my_dn( ssl, &authid, NULL, 0 );
654 (void) ldap_int_sasl_external( ld, ld->ld_defconn, authid.bv_val, fac );
655 LDAP_FREE( authid.bv_val );
659 /* Check for local */
660 if ( ldap_pvt_url_scheme2proto(
661 ld->ld_defconn->lconn_server->lud_scheme ) == LDAP_PROTO_IPC )
663 char authid[sizeof("gidNumber=4294967295+uidNumber=4294967295,"
664 "cn=peercred,cn=external,cn=auth")];
665 sprintf( authid, "gidNumber=%d+uidNumber=%d,"
666 "cn=peercred,cn=external,cn=auth",
667 (int) getegid(), (int) geteuid() );
668 (void) ldap_int_sasl_external( ld, ld->ld_defconn, authid,
669 LDAP_PVT_SASL_LOCAL_SSF );
673 /* (re)set security properties */
674 sasl_setprop( ctx, SASL_SEC_PROPS,
675 &ld->ld_options.ldo_sasl_secprops );
681 saslrc = sasl_client_start( ctx,
683 #if SASL_VERSION_MAJOR < 2
687 (SASL_CONST char **)&ccred.bv_val,
691 if( pmech == NULL && mech != NULL ) {
694 if( flags != LDAP_SASL_QUIET ) {
696 "SASL/%s authentication started\n",
701 if( saslrc == SASL_INTERACT ) {
703 if( !interact ) break;
704 res = (interact)( ld, flags, defaults, prompts );
706 if( res != LDAP_SUCCESS ) break;
708 } while ( saslrc == SASL_INTERACT );
710 ccred.bv_len = credlen;
712 if ( (saslrc != SASL_OK) && (saslrc != SASL_CONTINUE) ) {
713 rc = ld->ld_errno = sasl_err2ldap( saslrc );
714 #if SASL_VERSION_MAJOR >= 2
715 if ( ld->ld_error ) {
716 LDAP_FREE( ld->ld_error );
718 ld->ld_error = LDAP_STRDUP( sasl_errdetail( ctx ) );
724 struct berval *scred;
729 rc = ldap_sasl_bind_s( ld, dn, mech, &ccred, sctrls, cctrls,
732 if ( ccred.bv_val != NULL ) {
733 #if SASL_VERSION_MAJOR < 2
734 LDAP_FREE( ccred.bv_val );
739 if ( rc != LDAP_SUCCESS && rc != LDAP_SASL_BIND_IN_PROGRESS ) {
741 /* and server provided us with data? */
742 Debug( LDAP_DEBUG_TRACE,
743 "ldap_int_sasl_bind: rc=%d sasl=%d len=%ld\n",
744 rc, saslrc, scred ? scred->bv_len : -1 );
752 if( rc == LDAP_SUCCESS && saslrc == SASL_OK ) {
753 /* we're done, no need to step */
755 /* but we got additional data? */
756 #define KLUDGE_FOR_MSAD
757 #ifdef KLUDGE_FOR_MSAD
759 * MSAD provides empty additional data in violation of LDAP
760 * technical specifications. As no existing SASL mechanism
761 * allows empty data with an outcome message, just ignore it
762 * for now. Hopefully MS will fix their bug before someone
763 * defines a mechanism with possibly empty additional data.
765 if( scred->bv_len == 0 ) {
766 Debug( LDAP_DEBUG_ANY,
767 "ldap_int_sasl_bind: ignoring "
768 " bogus empty data provided with SASL outcome message.\n",
769 rc, saslrc, scred->bv_len );
774 Debug( LDAP_DEBUG_TRACE,
775 "ldap_int_sasl_bind: rc=%d sasl=%d len=%ld\n",
776 rc, saslrc, scred->bv_len );
777 rc = ld->ld_errno = LDAP_LOCAL_ERROR;
788 Debug( LDAP_DEBUG_TRACE,
789 "ldap_int_sasl_bind: no data in step!\n",
793 saslrc = sasl_client_step( ctx,
794 (scred == NULL) ? NULL : scred->bv_val,
795 (scred == NULL) ? 0 : scred->bv_len,
797 (SASL_CONST char **)&ccred.bv_val,
800 Debug( LDAP_DEBUG_TRACE, "sasl_client_step: %d\n",
803 if( saslrc == SASL_INTERACT ) {
805 if( !interact ) break;
806 res = (interact)( ld, flags, defaults, prompts );
807 if( res != LDAP_SUCCESS ) break;
809 } while ( saslrc == SASL_INTERACT );
811 ccred.bv_len = credlen;
814 if ( (saslrc != SASL_OK) && (saslrc != SASL_CONTINUE) ) {
815 ld->ld_errno = sasl_err2ldap( saslrc );
816 #if SASL_VERSION_MAJOR >= 2
817 if ( ld->ld_error ) {
818 LDAP_FREE( ld->ld_error );
820 ld->ld_error = LDAP_STRDUP( sasl_errdetail( ctx ) );
825 } while ( rc == LDAP_SASL_BIND_IN_PROGRESS );
827 if ( rc != LDAP_SUCCESS ) goto done;
829 if ( saslrc != SASL_OK ) {
830 #if SASL_VERSION_MAJOR >= 2
831 if ( ld->ld_error ) {
832 LDAP_FREE( ld->ld_error );
834 ld->ld_error = LDAP_STRDUP( sasl_errdetail( ctx ) );
836 rc = ld->ld_errno = sasl_err2ldap( saslrc );
840 if( flags != LDAP_SASL_QUIET ) {
841 saslrc = sasl_getprop( ctx, SASL_USERNAME,
842 (SASL_CONST void **) &data );
843 if( saslrc == SASL_OK && data && *data ) {
844 fprintf( stderr, "SASL username: %s\n", data );
847 #if SASL_VERSION_MAJOR < 2
848 saslrc = sasl_getprop( ctx, SASL_REALM,
849 (SASL_CONST void **) &data );
850 if( saslrc == SASL_OK && data && *data ) {
851 fprintf( stderr, "SASL realm: %s\n", data );
856 saslrc = sasl_getprop( ctx, SASL_SSF, (SASL_CONST void **) &ssf );
857 if( saslrc == SASL_OK ) {
858 if( flags != LDAP_SASL_QUIET ) {
859 fprintf( stderr, "SASL SSF: %lu\n",
860 (unsigned long) *ssf );
864 if ( ld->ld_defconn->lconn_sasl_sockctx ) {
865 oldctx = ld->ld_defconn->lconn_sasl_sockctx;
866 sasl_dispose( &oldctx );
867 ldap_pvt_sasl_remove( ld->ld_defconn->lconn_sb );
869 ldap_pvt_sasl_install( ld->ld_defconn->lconn_sb, ctx );
870 ld->ld_defconn->lconn_sasl_sockctx = ctx;
872 if( flags != LDAP_SASL_QUIET ) {
873 fprintf( stderr, "SASL data security layer installed.\n" );
877 ld->ld_defconn->lconn_sasl_authctx = ctx;
884 ldap_int_sasl_external(
892 #if SASL_VERSION_MAJOR < 2
893 sasl_external_properties_t extprops;
896 ctx = conn->lconn_sasl_authctx;
899 return LDAP_LOCAL_ERROR;
902 #if SASL_VERSION_MAJOR >= 2
903 sc = sasl_setprop( ctx, SASL_SSF_EXTERNAL, &ssf );
905 sc = sasl_setprop( ctx, SASL_AUTH_EXTERNAL, authid );
907 memset( &extprops, '\0', sizeof(extprops) );
909 extprops.auth_id = (char *) authid;
911 sc = sasl_setprop( ctx, SASL_SSF_EXTERNAL,
912 (void *) &extprops );
915 if ( sc != SASL_OK ) {
916 return LDAP_LOCAL_ERROR;
933 { BER_BVC("none"), 0, 0, 0 },
934 { BER_BVC("nodict"), SASL_SEC_NODICTIONARY, 0, 0 },
935 { BER_BVC("noplain"), SASL_SEC_NOPLAINTEXT, 0, 0 },
936 { BER_BVC("noactive"), SASL_SEC_NOACTIVE, 0, 0 },
937 { BER_BVC("passcred"), SASL_SEC_PASS_CREDENTIALS, 0, 0 },
938 { BER_BVC("forwardsec"), SASL_SEC_FORWARD_SECRECY, 0, 0 },
939 { BER_BVC("noanonymous"), SASL_SEC_NOANONYMOUS, 0, 0 },
940 { BER_BVC("minssf="), 0, GOT_MINSSF, 0 },
941 { BER_BVC("maxssf="), 0, GOT_MAXSSF, INT_MAX },
942 { BER_BVC("maxbufsize="), 0, GOT_MAXBUF, 65536 },
943 { BER_BVNULL, 0, 0, 0 }
946 void ldap_pvt_sasl_secprops_unparse(
947 sasl_security_properties_t *secprops,
954 if ( secprops == NULL || out == NULL ) {
959 for ( i=0; !BER_BVISNULL( &sprops[i].key ); i++ ) {
960 if ( sprops[i].ival ) {
963 switch( sprops[i].ival ) {
964 case GOT_MINSSF: v = secprops->min_ssf; break;
965 case GOT_MAXSSF: v = secprops->max_ssf; break;
966 case GOT_MAXBUF: v = secprops->maxbufsize; break;
968 /* It is the default, ignore it */
969 if ( v == sprops[i].idef ) continue;
971 l += sprops[i].key.bv_len + 24;
972 } else if ( sprops[i].sflag ) {
973 if ( sprops[i].sflag & secprops->security_flags ) {
974 l += sprops[i].key.bv_len;
976 } else if ( secprops->security_flags == 0 ) {
977 l += sprops[i].key.bv_len;
984 out->bv_val = LDAP_MALLOC( l );
985 if ( out->bv_val == NULL ) {
992 for ( i=0; !BER_BVISNULL( &sprops[i].key ); i++ ) {
993 if ( sprops[i].ival ) {
996 switch( sprops[i].ival ) {
997 case GOT_MINSSF: v = secprops->min_ssf; break;
998 case GOT_MAXSSF: v = secprops->max_ssf; break;
999 case GOT_MAXBUF: v = secprops->maxbufsize; break;
1001 /* It is the default, ignore it */
1002 if ( v == sprops[i].idef ) continue;
1004 if ( comma ) *ptr++ = ',';
1005 ptr += sprintf(ptr, "%s%d", sprops[i].key.bv_val, v );
1007 } else if ( sprops[i].sflag ) {
1008 if ( sprops[i].sflag & secprops->security_flags ) {
1009 if ( comma ) *ptr++ = ',';
1010 ptr += sprintf(ptr, "%s", sprops[i].key.bv_val );
1013 } else if ( secprops->security_flags == 0 ) {
1014 if ( comma ) *ptr++ = ',';
1015 ptr += sprintf(ptr, "%s", sprops[i].key.bv_val );
1019 out->bv_len = ptr - out->bv_val;
1022 int ldap_pvt_sasl_secprops(
1024 sasl_security_properties_t *secprops )
1028 unsigned sflags = 0;
1030 sasl_ssf_t max_ssf = 0;
1031 int got_max_ssf = 0;
1032 sasl_ssf_t min_ssf = 0;
1033 int got_min_ssf = 0;
1034 unsigned maxbufsize = 0;
1035 int got_maxbufsize = 0;
1037 if( secprops == NULL ) {
1038 return LDAP_PARAM_ERROR;
1040 props = ldap_str2charray( in, "," );
1041 if( props == NULL ) {
1042 return LDAP_PARAM_ERROR;
1045 for( i=0; props[i]; i++ ) {
1046 l = strlen( props[i] );
1047 for ( j=0; !BER_BVISNULL( &sprops[j].key ); j++ ) {
1048 if ( l < sprops[j].key.bv_len ) continue;
1049 if ( strncasecmp( props[i], sprops[j].key.bv_val,
1050 sprops[j].key.bv_len )) continue;
1051 if ( sprops[j].ival ) {
1054 if ( !isdigit( (unsigned char)props[i][sprops[j].key.bv_len] ))
1056 v = strtoul( &props[i][sprops[j].key.bv_len], &next, 10 );
1057 if ( next == &props[i][sprops[j].key.bv_len] || next[0] != '\0' ) continue;
1058 switch( sprops[j].ival ) {
1060 min_ssf = v; got_min_ssf++; break;
1062 max_ssf = v; got_max_ssf++; break;
1064 maxbufsize = v; got_maxbufsize++; break;
1067 if ( props[i][sprops[j].key.bv_len] ) continue;
1068 if ( sprops[j].sflag )
1069 sflags |= sprops[j].sflag;
1076 if ( BER_BVISNULL( &sprops[j].key )) {
1077 ldap_charray_free( props );
1078 return LDAP_NOT_SUPPORTED;
1083 secprops->security_flags = sflags;
1086 secprops->min_ssf = min_ssf;
1089 secprops->max_ssf = max_ssf;
1091 if(got_maxbufsize) {
1092 secprops->maxbufsize = maxbufsize;
1095 ldap_charray_free( props );
1096 return LDAP_SUCCESS;
1100 ldap_int_sasl_config( struct ldapoptions *lo, int option, const char *arg )
1105 case LDAP_OPT_X_SASL_SECPROPS:
1106 rc = ldap_pvt_sasl_secprops( arg, &lo->ldo_sasl_secprops );
1107 if( rc == LDAP_SUCCESS ) return 0;
1114 ldap_int_sasl_get_option( LDAP *ld, int option, void *arg )
1120 case LDAP_OPT_X_SASL_MECH: {
1121 *(char **)arg = ld->ld_options.ldo_def_sasl_mech
1122 ? LDAP_STRDUP( ld->ld_options.ldo_def_sasl_mech ) : NULL;
1124 case LDAP_OPT_X_SASL_REALM: {
1125 *(char **)arg = ld->ld_options.ldo_def_sasl_realm
1126 ? LDAP_STRDUP( ld->ld_options.ldo_def_sasl_realm ) : NULL;
1128 case LDAP_OPT_X_SASL_AUTHCID: {
1129 *(char **)arg = ld->ld_options.ldo_def_sasl_authcid
1130 ? LDAP_STRDUP( ld->ld_options.ldo_def_sasl_authcid ) : NULL;
1132 case LDAP_OPT_X_SASL_AUTHZID: {
1133 *(char **)arg = ld->ld_options.ldo_def_sasl_authzid
1134 ? LDAP_STRDUP( ld->ld_options.ldo_def_sasl_authzid ) : NULL;
1137 case LDAP_OPT_X_SASL_SSF: {
1142 if( ld->ld_defconn == NULL ) {
1146 ctx = ld->ld_defconn->lconn_sasl_sockctx;
1148 if ( ctx == NULL ) {
1152 sc = sasl_getprop( ctx, SASL_SSF,
1153 (SASL_CONST void **) &ssf );
1155 if ( sc != SASL_OK ) {
1159 *(ber_len_t *)arg = *ssf;
1162 case LDAP_OPT_X_SASL_SSF_EXTERNAL:
1163 /* this option is write only */
1166 case LDAP_OPT_X_SASL_SSF_MIN:
1167 *(ber_len_t *)arg = ld->ld_options.ldo_sasl_secprops.min_ssf;
1169 case LDAP_OPT_X_SASL_SSF_MAX:
1170 *(ber_len_t *)arg = ld->ld_options.ldo_sasl_secprops.max_ssf;
1172 case LDAP_OPT_X_SASL_MAXBUFSIZE:
1173 *(ber_len_t *)arg = ld->ld_options.ldo_sasl_secprops.maxbufsize;
1176 case LDAP_OPT_X_SASL_SECPROPS:
1177 /* this option is write only */
1187 ldap_int_sasl_set_option( LDAP *ld, int option, void *arg )
1193 case LDAP_OPT_X_SASL_SSF:
1194 /* This option is read-only */
1197 case LDAP_OPT_X_SASL_SSF_EXTERNAL: {
1199 #if SASL_VERSION_MAJOR < 2
1200 sasl_external_properties_t extprops;
1204 if( ld->ld_defconn == NULL ) {
1208 ctx = ld->ld_defconn->lconn_sasl_authctx;
1210 if ( ctx == NULL ) {
1214 #if SASL_VERSION_MAJOR >= 2
1215 sc = sasl_setprop( ctx, SASL_SSF_EXTERNAL, arg);
1217 memset(&extprops, 0L, sizeof(extprops));
1219 extprops.ssf = * (ber_len_t *) arg;
1221 sc = sasl_setprop( ctx, SASL_SSF_EXTERNAL,
1222 (void *) &extprops );
1225 if ( sc != SASL_OK ) {
1230 case LDAP_OPT_X_SASL_SSF_MIN:
1231 ld->ld_options.ldo_sasl_secprops.min_ssf = *(ber_len_t *)arg;
1233 case LDAP_OPT_X_SASL_SSF_MAX:
1234 ld->ld_options.ldo_sasl_secprops.max_ssf = *(ber_len_t *)arg;
1236 case LDAP_OPT_X_SASL_MAXBUFSIZE:
1237 ld->ld_options.ldo_sasl_secprops.maxbufsize = *(ber_len_t *)arg;
1240 case LDAP_OPT_X_SASL_SECPROPS: {
1242 sc = ldap_pvt_sasl_secprops( (char *) arg,
1243 &ld->ld_options.ldo_sasl_secprops );
1245 return sc == LDAP_SUCCESS ? 0 : -1;
1254 #ifdef LDAP_R_COMPILE
1255 #define LDAP_DEBUG_R_SASL
1256 void *ldap_pvt_sasl_mutex_new(void)
1258 ldap_pvt_thread_mutex_t *mutex;
1260 mutex = (ldap_pvt_thread_mutex_t *) LDAP_MALLOC(
1261 sizeof(ldap_pvt_thread_mutex_t) );
1263 if ( ldap_pvt_thread_mutex_init( mutex ) == 0 ) {
1266 #ifndef LDAP_DEBUG_R_SASL
1268 #endif /* !LDAP_DEBUG_R_SASL */
1272 int ldap_pvt_sasl_mutex_lock(void *mutex)
1274 #ifdef LDAP_DEBUG_R_SASL
1275 if ( mutex == NULL ) {
1278 #else /* !LDAP_DEBUG_R_SASL */
1279 assert( mutex != NULL );
1280 #endif /* !LDAP_DEBUG_R_SASL */
1281 return ldap_pvt_thread_mutex_lock( (ldap_pvt_thread_mutex_t *)mutex )
1282 ? SASL_FAIL : SASL_OK;
1285 int ldap_pvt_sasl_mutex_unlock(void *mutex)
1287 #ifdef LDAP_DEBUG_R_SASL
1288 if ( mutex == NULL ) {
1291 #else /* !LDAP_DEBUG_R_SASL */
1292 assert( mutex != NULL );
1293 #endif /* !LDAP_DEBUG_R_SASL */
1294 return ldap_pvt_thread_mutex_unlock( (ldap_pvt_thread_mutex_t *)mutex )
1295 ? SASL_FAIL : SASL_OK;
1298 void ldap_pvt_sasl_mutex_dispose(void *mutex)
1300 #ifdef LDAP_DEBUG_R_SASL
1301 if ( mutex == NULL ) {
1304 #else /* !LDAP_DEBUG_R_SASL */
1305 assert( mutex != NULL );
1306 #endif /* !LDAP_DEBUG_R_SASL */
1307 (void) ldap_pvt_thread_mutex_destroy( (ldap_pvt_thread_mutex_t *)mutex );
1313 int ldap_int_sasl_init( void )
1314 { return LDAP_SUCCESS; }
1316 int ldap_int_sasl_close( LDAP *ld, LDAPConn *lc )
1317 { return LDAP_SUCCESS; }
1324 LDAPControl **sctrls,
1325 LDAPControl **cctrls,
1327 LDAP_SASL_INTERACT_PROC *interact,
1329 { return LDAP_NOT_SUPPORTED; }
1332 ldap_int_sasl_external(
1335 const char * authid,
1337 { return LDAP_SUCCESS; }
1339 #endif /* HAVE_CYRUS_SASL */