2 /* This work is part of OpenLDAP Software <http://www.openldap.org/>.
4 * Copyright 1998-2003 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>
30 #ifdef HAVE_CYRUS_SASL
33 ldap_pvt_thread_mutex_t ldap_int_sasl_mutex;
36 #ifdef HAVE_SASL_SASL_H
37 #include <sasl/sasl.h>
42 #if SASL_VERSION_MAJOR >= 2
43 #define SASL_CONST const
49 * Various Cyrus SASL related stuff.
52 int ldap_int_sasl_init( void )
54 /* XXX not threadsafe */
55 static int sasl_initialized = 0;
57 static sasl_callback_t client_callbacks[] = {
58 #ifdef SASL_CB_GETREALM
59 { SASL_CB_GETREALM, NULL, NULL },
61 { SASL_CB_USER, NULL, NULL },
62 { SASL_CB_AUTHNAME, NULL, NULL },
63 { SASL_CB_PASS, NULL, NULL },
64 { SASL_CB_ECHOPROMPT, NULL, NULL },
65 { SASL_CB_NOECHOPROMPT, NULL, NULL },
66 { SASL_CB_LIST_END, NULL, NULL }
69 #ifdef HAVE_SASL_VERSION
70 /* stringify the version number, sasl.h doesn't do it for us */
71 #define VSTR0(maj, min, pat) #maj "." #min "." #pat
72 #define VSTR(maj, min, pat) VSTR0(maj, min, pat)
73 #define SASL_VERSION_STRING VSTR(SASL_VERSION_MAJOR, SASL_VERSION_MINOR, \
76 sasl_version( NULL, &rc );
77 if ( ((rc >> 16) != ((SASL_VERSION_MAJOR << 8)|SASL_VERSION_MINOR)) ||
78 (rc & 0xffff) < SASL_VERSION_STEP) {
79 char version[sizeof("xxx.xxx.xxxxx")];
80 sprintf( version, "%u.%d.%d", (unsigned)rc >> 24, (rc >> 16) & 0xff,
84 LDAP_LOG( TRANSPORT, INFO,
85 "ldap_int_sasl_init: SASL library version mismatch:"
86 " expected " SASL_VERSION_STRING ","
87 " got %s\n", version, 0, 0 );
89 Debug( LDAP_DEBUG_ANY,
90 "ldap_int_sasl_init: SASL library version mismatch:"
91 " expected " SASL_VERSION_STRING ","
92 " got %s\n", version, 0, 0 );
98 if ( sasl_initialized ) {
102 /* SASL 2 takes care of its own memory completely internally */
103 #if SASL_VERSION_MAJOR < 2 && !defined(CSRIMALLOC)
109 #endif /* CSRIMALLOC */
111 #ifdef LDAP_R_COMPILE
113 ldap_pvt_sasl_mutex_new,
114 ldap_pvt_sasl_mutex_lock,
115 ldap_pvt_sasl_mutex_unlock,
116 ldap_pvt_sasl_mutex_dispose );
118 ldap_pvt_thread_mutex_init( &ldap_int_sasl_mutex );
121 if ( sasl_client_init( client_callbacks ) == SASL_OK ) {
122 sasl_initialized = 1;
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 );
134 * SASL encryption support for LBER Sockbufs
137 struct sb_sasl_data {
138 sasl_conn_t *sasl_context;
139 unsigned *sasl_maxbuf;
140 Sockbuf_Buf sec_buf_in;
146 sb_sasl_setup( Sockbuf_IO_Desc *sbiod, void *arg )
148 struct sb_sasl_data *p;
150 assert( sbiod != NULL );
152 p = LBER_MALLOC( sizeof( *p ) );
155 p->sasl_context = (sasl_conn_t *)arg;
156 ber_pvt_sb_buf_init( &p->sec_buf_in );
157 ber_pvt_sb_buf_init( &p->buf_in );
158 ber_pvt_sb_buf_init( &p->buf_out );
159 if ( ber_pvt_sb_grow_buffer( &p->sec_buf_in, SASL_MIN_BUFF_SIZE ) < 0 ) {
164 sasl_getprop( p->sasl_context, SASL_MAXOUTBUF,
165 (SASL_CONST void **) &p->sasl_maxbuf );
167 sbiod->sbiod_pvt = p;
173 sb_sasl_remove( Sockbuf_IO_Desc *sbiod )
175 struct sb_sasl_data *p;
177 assert( sbiod != NULL );
179 p = (struct sb_sasl_data *)sbiod->sbiod_pvt;
180 #if SASL_VERSION_MAJOR >= 2
182 * SASLv2 encode/decode buffers are managed by
183 * libsasl2. Ensure they are not freed by liblber.
185 p->buf_in.buf_base = NULL;
186 p->buf_out.buf_base = NULL;
188 ber_pvt_sb_buf_destroy( &p->sec_buf_in );
189 ber_pvt_sb_buf_destroy( &p->buf_in );
190 ber_pvt_sb_buf_destroy( &p->buf_out );
192 sbiod->sbiod_pvt = NULL;
197 sb_sasl_pkt_length( const unsigned char *buf, int debuglevel )
201 assert( buf != NULL );
208 if ( size > SASL_MAX_BUFF_SIZE ) {
209 /* somebody is trying to mess me up. */
210 ber_log_printf( LDAP_DEBUG_ANY, debuglevel,
211 "sb_sasl_pkt_length: received illegal packet length "
212 "of %lu bytes\n", (unsigned long)size );
213 size = 16; /* this should lead to an error. */
216 return size + 4; /* include the size !!! */
219 /* Drop a processed packet from the input buffer */
221 sb_sasl_drop_packet ( Sockbuf_Buf *sec_buf_in, int debuglevel )
225 len = sec_buf_in->buf_ptr - sec_buf_in->buf_end;
227 AC_MEMCPY( sec_buf_in->buf_base, sec_buf_in->buf_base +
228 sec_buf_in->buf_end, len );
231 sec_buf_in->buf_end = sb_sasl_pkt_length(
232 (unsigned char *) sec_buf_in->buf_base, debuglevel);
235 sec_buf_in->buf_end = 0;
237 sec_buf_in->buf_ptr = len;
241 sb_sasl_read( Sockbuf_IO_Desc *sbiod, void *buf, ber_len_t len)
243 struct sb_sasl_data *p;
244 ber_slen_t ret, bufptr;
246 assert( sbiod != NULL );
247 assert( SOCKBUF_VALID( sbiod->sbiod_sb ) );
249 p = (struct sb_sasl_data *)sbiod->sbiod_pvt;
251 /* Are there anything left in the buffer? */
252 ret = ber_pvt_sb_copy_out( &p->buf_in, buf, len );
259 #if SASL_VERSION_MAJOR >= 2
260 ber_pvt_sb_buf_init( &p->buf_in );
262 ber_pvt_sb_buf_destroy( &p->buf_in );
265 /* Read the length of the packet */
266 while ( p->sec_buf_in.buf_ptr < 4 ) {
267 ret = LBER_SBIOD_READ_NEXT( sbiod, p->sec_buf_in.buf_base,
268 4 - p->sec_buf_in.buf_ptr );
270 if ( ( ret < 0 ) && ( errno == EINTR ) )
274 return bufptr ? bufptr : ret;
276 p->sec_buf_in.buf_ptr += ret;
279 /* The new packet always starts at p->sec_buf_in.buf_base */
280 ret = sb_sasl_pkt_length( (unsigned char *) p->sec_buf_in.buf_base,
281 sbiod->sbiod_sb->sb_debug );
283 /* Grow the packet buffer if neccessary */
284 if ( ( p->sec_buf_in.buf_size < (ber_len_t) ret ) &&
285 ber_pvt_sb_grow_buffer( &p->sec_buf_in, ret ) < 0 )
290 p->sec_buf_in.buf_end = ret;
292 /* Did we read the whole encrypted packet? */
293 while ( p->sec_buf_in.buf_ptr < p->sec_buf_in.buf_end ) {
294 /* No, we have got only a part of it */
295 ret = p->sec_buf_in.buf_end - p->sec_buf_in.buf_ptr;
297 ret = LBER_SBIOD_READ_NEXT( sbiod, p->sec_buf_in.buf_base +
298 p->sec_buf_in.buf_ptr, ret );
300 if ( ( ret < 0 ) && ( errno == EINTR ) )
304 return bufptr ? bufptr : ret;
306 p->sec_buf_in.buf_ptr += ret;
309 /* Decode the packet */
310 ret = sasl_decode( p->sasl_context, p->sec_buf_in.buf_base,
311 p->sec_buf_in.buf_end,
312 (SASL_CONST char **)&p->buf_in.buf_base,
313 (unsigned *)&p->buf_in.buf_end );
315 /* Drop the packet from the input buffer */
316 sb_sasl_drop_packet( &p->sec_buf_in, sbiod->sbiod_sb->sb_debug );
318 if ( ret != SASL_OK ) {
319 ber_log_printf( LDAP_DEBUG_ANY, sbiod->sbiod_sb->sb_debug,
320 "sb_sasl_read: failed to decode packet: %s\n",
321 sasl_errstring( ret, NULL, NULL ) );
326 p->buf_in.buf_size = p->buf_in.buf_end;
328 bufptr += ber_pvt_sb_copy_out( &p->buf_in, (char*) buf + bufptr, len );
334 sb_sasl_write( Sockbuf_IO_Desc *sbiod, void *buf, ber_len_t len)
336 struct sb_sasl_data *p;
339 assert( sbiod != NULL );
340 assert( SOCKBUF_VALID( sbiod->sbiod_sb ) );
342 p = (struct sb_sasl_data *)sbiod->sbiod_pvt;
344 /* Are there anything left in the buffer? */
345 if ( p->buf_out.buf_ptr != p->buf_out.buf_end ) {
346 ret = ber_pvt_sb_do_write( sbiod, &p->buf_out );
349 /* Still have something left?? */
350 if ( p->buf_out.buf_ptr != p->buf_out.buf_end ) {
356 /* now encode the next packet. */
357 #if SASL_VERSION_MAJOR >= 2
358 ber_pvt_sb_buf_init( &p->buf_out );
359 /* sasl v2 makes sure this number is correct */
360 if ( len > *p->sasl_maxbuf )
361 len = *p->sasl_maxbuf;
363 ber_pvt_sb_buf_destroy( &p->buf_out );
364 if ( len > *p->sasl_maxbuf - 100 )
365 len = *p->sasl_maxbuf - 100; /* For safety margin */
367 ret = sasl_encode( p->sasl_context, buf, len,
368 (SASL_CONST char **)&p->buf_out.buf_base,
369 (unsigned *)&p->buf_out.buf_size );
370 if ( ret != SASL_OK ) {
371 ber_log_printf( LDAP_DEBUG_ANY, sbiod->sbiod_sb->sb_debug,
372 "sb_sasl_write: failed to encode packet: %s\n",
373 sasl_errstring( ret, NULL, NULL ) );
376 p->buf_out.buf_end = p->buf_out.buf_size;
378 ret = ber_pvt_sb_do_write( sbiod, &p->buf_out );
385 sb_sasl_ctrl( Sockbuf_IO_Desc *sbiod, int opt, void *arg )
387 struct sb_sasl_data *p;
389 p = (struct sb_sasl_data *)sbiod->sbiod_pvt;
391 if ( opt == LBER_SB_OPT_DATA_READY ) {
392 if ( p->buf_in.buf_ptr != p->buf_in.buf_end )
396 return LBER_SBIOD_CTRL_NEXT( sbiod, opt, arg );
399 Sockbuf_IO ldap_pvt_sockbuf_io_sasl = {
400 sb_sasl_setup, /* sbi_setup */
401 sb_sasl_remove, /* sbi_remove */
402 sb_sasl_ctrl, /* sbi_ctrl */
403 sb_sasl_read, /* sbi_read */
404 sb_sasl_write, /* sbi_write */
408 int ldap_pvt_sasl_install( Sockbuf *sb, void *ctx_arg )
411 LDAP_LOG ( TRANSPORT, ENTRY, "ldap_pvt_sasl_install\n", 0, 0, 0 );
413 Debug( LDAP_DEBUG_TRACE, "ldap_pvt_sasl_install\n",
417 /* don't install the stuff unless security has been negotiated */
419 if ( !ber_sockbuf_ctrl( sb, LBER_SB_OPT_HAS_IO,
420 &ldap_pvt_sockbuf_io_sasl ) )
423 ber_sockbuf_add_io( sb, &ber_sockbuf_io_debug,
424 LBER_SBIOD_LEVEL_APPLICATION, (void *)"sasl_" );
426 ber_sockbuf_add_io( sb, &ldap_pvt_sockbuf_io_sasl,
427 LBER_SBIOD_LEVEL_APPLICATION, ctx_arg );
433 void ldap_pvt_sasl_remove( Sockbuf *sb )
435 ber_sockbuf_remove_io( sb, &ldap_pvt_sockbuf_io_sasl,
436 LBER_SBIOD_LEVEL_APPLICATION );
438 ber_sockbuf_remove_io( sb, &ber_sockbuf_io_debug,
439 LBER_SBIOD_LEVEL_APPLICATION );
444 sasl_err2ldap( int saslerr )
450 rc = LDAP_MORE_RESULTS_TO_RETURN;
453 rc = LDAP_LOCAL_ERROR;
459 rc = LDAP_LOCAL_ERROR;
465 rc = LDAP_AUTH_UNKNOWN;
468 rc = LDAP_AUTH_UNKNOWN;
471 rc = LDAP_PARAM_ERROR;
475 rc = LDAP_AUTH_UNKNOWN;
478 rc = LDAP_LOCAL_ERROR;
482 assert( rc == LDAP_SUCCESS || LDAP_API_ERROR( rc ) );
495 assert( lc->lconn_sasl_authctx == NULL );
497 if ( host == NULL ) {
498 ld->ld_errno = LDAP_LOCAL_ERROR;
502 #if SASL_VERSION_MAJOR >= 2
503 rc = sasl_client_new( "ldap", host, NULL, NULL,
506 rc = sasl_client_new( "ldap", host, NULL,
507 SASL_SECURITY_LAYER, &ctx );
510 if ( rc != SASL_OK ) {
511 ld->ld_errno = sasl_err2ldap( rc );
516 LDAP_LOG ( TRANSPORT, DETAIL1, "ldap_int_sasl_open: host=%s\n",
519 Debug( LDAP_DEBUG_TRACE, "ldap_int_sasl_open: host=%s\n",
523 lc->lconn_sasl_authctx = ctx;
528 int ldap_int_sasl_close( LDAP *ld, LDAPConn *lc )
530 sasl_conn_t *ctx = lc->lconn_sasl_authctx;
533 sasl_dispose( &ctx );
534 if ( lc->lconn_sasl_sockctx &&
535 lc->lconn_sasl_authctx != lc->lconn_sasl_sockctx ) {
536 ctx = lc->lconn_sasl_sockctx;
537 sasl_dispose( &ctx );
539 lc->lconn_sasl_sockctx = NULL;
540 lc->lconn_sasl_authctx = NULL;
551 LDAPControl **sctrls,
552 LDAPControl **cctrls,
554 LDAP_SASL_INTERACT_PROC *interact,
558 const char *mech = NULL;
559 const char *pmech = NULL;
561 sasl_ssf_t *ssf = NULL;
562 sasl_conn_t *ctx, *oldctx = NULL;
563 sasl_interact_t *prompts = NULL;
570 LDAP_LOG ( TRANSPORT, ARGS, "ldap_int_sasl_bind: %s\n",
571 mechs ? mechs : "<null>", 0, 0 );
573 Debug( LDAP_DEBUG_TRACE, "ldap_int_sasl_bind: %s\n",
574 mechs ? mechs : "<null>", 0, 0 );
577 /* do a quick !LDAPv3 check... ldap_sasl_bind will do the rest. */
578 if (ld->ld_version < LDAP_VERSION3) {
579 ld->ld_errno = LDAP_NOT_SUPPORTED;
583 ber_sockbuf_ctrl( ld->ld_sb, LBER_SB_OPT_GET_FD, &sd );
585 if ( sd == AC_SOCKET_INVALID ) {
586 /* not connected yet */
589 rc = ldap_open_defconn( ld );
590 if( rc < 0 ) return ld->ld_errno;
592 ber_sockbuf_ctrl( ld->ld_sb, LBER_SB_OPT_GET_FD, &sd );
594 if( sd == AC_SOCKET_INVALID ) {
595 ld->ld_errno = LDAP_LOCAL_ERROR;
600 oldctx = ld->ld_defconn->lconn_sasl_authctx;
602 /* If we already have an authentication context, clear it out */
604 if ( oldctx != ld->ld_defconn->lconn_sasl_sockctx ) {
605 sasl_dispose( &oldctx );
607 ld->ld_defconn->lconn_sasl_authctx = NULL;
610 { char *saslhost = ldap_host_connected_to( ld->ld_sb, "localhost" );
611 rc = ldap_int_sasl_open( ld, ld->ld_defconn, saslhost );
612 LDAP_FREE( saslhost );
615 if ( rc != LDAP_SUCCESS ) return rc;
617 ctx = ld->ld_defconn->lconn_sasl_authctx;
620 ssl = ldap_pvt_tls_sb_ctx( ld->ld_sb );
622 struct berval authid = { 0, NULL };
625 fac = ldap_pvt_tls_get_strength( ssl );
626 /* failure is OK, we just can't use SASL EXTERNAL */
627 (void) ldap_pvt_tls_get_my_dn( ssl, &authid, NULL, 0 );
629 (void) ldap_int_sasl_external( ld, ld->ld_defconn, authid.bv_val, fac );
630 LDAP_FREE( authid.bv_val );
633 /* Check for local */
634 if ( ldap_pvt_url_scheme2proto( ld->ld_defconn->lconn_server->lud_scheme ) == LDAP_PROTO_IPC ) {
635 char authid[sizeof("uidNumber=4294967295+gidNumber=4294967295,"
636 "cn=peercred,cn=external,cn=auth")];
637 sprintf( authid, "uidNumber=%d+gidNumber=%d,"
638 "cn=peercred,cn=external,cn=auth",
639 (int) geteuid(), (int) getegid() );
640 (void) ldap_int_sasl_external( ld, ld->ld_defconn, authid, LDAP_PVT_SASL_LOCAL_SSF );
643 /* (re)set security properties */
644 sasl_setprop( ctx, SASL_SEC_PROPS,
645 &ld->ld_options.ldo_sasl_secprops );
651 saslrc = sasl_client_start( ctx,
653 #if SASL_VERSION_MAJOR < 2
657 (SASL_CONST char **)&ccred.bv_val,
661 if( pmech == NULL && mech != NULL ) {
664 if( flags != LDAP_SASL_QUIET ) {
666 "SASL/%s authentication started\n",
671 if( saslrc == SASL_INTERACT ) {
673 if( !interact ) break;
674 res = (interact)( ld, flags, defaults, prompts );
676 if( res != LDAP_SUCCESS ) break;
678 } while ( saslrc == SASL_INTERACT );
680 ccred.bv_len = credlen;
682 if ( (saslrc != SASL_OK) && (saslrc != SASL_CONTINUE) ) {
683 rc = ld->ld_errno = sasl_err2ldap( saslrc );
684 #if SASL_VERSION_MAJOR >= 2
685 ld->ld_error = LDAP_STRDUP( sasl_errdetail( ctx ) );
691 struct berval *scred;
696 rc = ldap_sasl_bind_s( ld, dn, mech, &ccred, sctrls, cctrls, &scred );
698 if ( ccred.bv_val != NULL ) {
699 #if SASL_VERSION_MAJOR < 2
700 LDAP_FREE( ccred.bv_val );
705 if ( rc != LDAP_SUCCESS && rc != LDAP_SASL_BIND_IN_PROGRESS ) {
706 if( scred && scred->bv_len ) {
707 /* and server provided us with data? */
709 LDAP_LOG ( TRANSPORT, DETAIL1,
710 "ldap_int_sasl_bind: rc=%d sasl=%d len=%ld\n",
711 rc, saslrc, scred->bv_len );
713 Debug( LDAP_DEBUG_TRACE,
714 "ldap_int_sasl_bind: rc=%d sasl=%d len=%ld\n",
715 rc, saslrc, scred->bv_len );
723 if( rc == LDAP_SUCCESS && saslrc == SASL_OK ) {
724 /* we're done, no need to step */
725 if( scred && scred->bv_len ) {
726 /* but server provided us with data! */
728 LDAP_LOG ( TRANSPORT, DETAIL1,
729 "ldap_int_sasl_bind: rc=%d sasl=%d len=%ld\n",
730 rc, saslrc, scred->bv_len );
732 Debug( LDAP_DEBUG_TRACE,
733 "ldap_int_sasl_bind: rc=%d sasl=%d len=%ld\n",
734 rc, saslrc, scred->bv_len );
737 rc = ld->ld_errno = LDAP_LOCAL_ERROR;
744 saslrc = sasl_client_step( ctx,
745 (scred == NULL) ? NULL : scred->bv_val,
746 (scred == NULL) ? 0 : scred->bv_len,
748 (SASL_CONST char **)&ccred.bv_val,
752 LDAP_LOG ( TRANSPORT, DETAIL1,
753 "ldap_int_sasl_bind: sasl_client_step: %d\n", saslrc,0,0 );
755 Debug( LDAP_DEBUG_TRACE, "sasl_client_step: %d\n",
759 if( saslrc == SASL_INTERACT ) {
761 if( !interact ) break;
762 res = (interact)( ld, flags, defaults, prompts );
763 if( res != LDAP_SUCCESS ) break;
765 } while ( saslrc == SASL_INTERACT );
767 ccred.bv_len = credlen;
770 if ( (saslrc != SASL_OK) && (saslrc != SASL_CONTINUE) ) {
771 ld->ld_errno = sasl_err2ldap( saslrc );
772 #if SASL_VERSION_MAJOR >= 2
773 ld->ld_error = LDAP_STRDUP( sasl_errdetail( ctx ) );
778 } while ( rc == LDAP_SASL_BIND_IN_PROGRESS );
780 if ( rc != LDAP_SUCCESS ) goto done;
782 if ( saslrc != SASL_OK ) {
783 #if SASL_VERSION_MAJOR >= 2
784 ld->ld_error = LDAP_STRDUP( sasl_errdetail( ctx ) );
786 rc = ld->ld_errno = sasl_err2ldap( saslrc );
790 if( flags != LDAP_SASL_QUIET ) {
791 saslrc = sasl_getprop( ctx, SASL_USERNAME, (SASL_CONST void **) &data );
792 if( saslrc == SASL_OK && data && *data ) {
793 fprintf( stderr, "SASL username: %s\n", data );
796 #if SASL_VERSION_MAJOR < 2
797 saslrc = sasl_getprop( ctx, SASL_REALM, (SASL_CONST void **) &data );
798 if( saslrc == SASL_OK && data && *data ) {
799 fprintf( stderr, "SASL realm: %s\n", data );
804 saslrc = sasl_getprop( ctx, SASL_SSF, (SASL_CONST void **) &ssf );
805 if( saslrc == SASL_OK ) {
806 if( flags != LDAP_SASL_QUIET ) {
807 fprintf( stderr, "SASL SSF: %lu\n",
808 (unsigned long) *ssf );
812 if( flags != LDAP_SASL_QUIET ) {
813 fprintf( stderr, "SASL installing layers\n" );
815 if ( ld->ld_defconn->lconn_sasl_sockctx ) {
816 oldctx = ld->ld_defconn->lconn_sasl_sockctx;
817 sasl_dispose( &oldctx );
818 ldap_pvt_sasl_remove( ld->ld_sb );
820 ldap_pvt_sasl_install( ld->ld_conns->lconn_sb, ctx );
821 ld->ld_defconn->lconn_sasl_sockctx = ctx;
824 ld->ld_defconn->lconn_sasl_authctx = ctx;
831 ldap_int_sasl_external(
839 #if SASL_VERSION_MAJOR < 2
840 sasl_external_properties_t extprops;
843 ctx = conn->lconn_sasl_authctx;
846 return LDAP_LOCAL_ERROR;
849 #if SASL_VERSION_MAJOR >= 2
850 sc = sasl_setprop( ctx, SASL_SSF_EXTERNAL, &ssf );
852 sc = sasl_setprop( ctx, SASL_AUTH_EXTERNAL, authid );
854 memset( &extprops, '\0', sizeof(extprops) );
856 extprops.auth_id = (char *) authid;
858 sc = sasl_setprop( ctx, SASL_SSF_EXTERNAL,
859 (void *) &extprops );
862 if ( sc != SASL_OK ) {
863 return LDAP_LOCAL_ERROR;
870 int ldap_pvt_sasl_secprops(
872 sasl_security_properties_t *secprops )
875 char **props = ldap_str2charray( in, "," );
878 sasl_ssf_t max_ssf = 0;
880 sasl_ssf_t min_ssf = 0;
882 unsigned maxbufsize = 0;
883 int got_maxbufsize = 0;
885 if( props == NULL || secprops == NULL ) {
886 return LDAP_PARAM_ERROR;
889 for( i=0; props[i]; i++ ) {
890 if( !strcasecmp(props[i], "none") ) {
893 } else if( !strcasecmp(props[i], "noplain") ) {
895 sflags |= SASL_SEC_NOPLAINTEXT;
897 } else if( !strcasecmp(props[i], "noactive") ) {
899 sflags |= SASL_SEC_NOACTIVE;
901 } else if( !strcasecmp(props[i], "nodict") ) {
903 sflags |= SASL_SEC_NODICTIONARY;
905 } else if( !strcasecmp(props[i], "forwardsec") ) {
907 sflags |= SASL_SEC_FORWARD_SECRECY;
909 } else if( !strcasecmp(props[i], "noanonymous")) {
911 sflags |= SASL_SEC_NOANONYMOUS;
913 } else if( !strcasecmp(props[i], "passcred") ) {
915 sflags |= SASL_SEC_PASS_CREDENTIALS;
917 } else if( !strncasecmp(props[i],
918 "minssf=", sizeof("minssf")) )
920 if( isdigit( (unsigned char) props[i][sizeof("minssf")] ) ) {
922 min_ssf = atoi( &props[i][sizeof("minssf")] );
924 return LDAP_NOT_SUPPORTED;
927 } else if( !strncasecmp(props[i],
928 "maxssf=", sizeof("maxssf")) )
930 if( isdigit( (unsigned char) props[i][sizeof("maxssf")] ) ) {
932 max_ssf = atoi( &props[i][sizeof("maxssf")] );
934 return LDAP_NOT_SUPPORTED;
937 } else if( !strncasecmp(props[i],
938 "maxbufsize=", sizeof("maxbufsize")) )
940 if( isdigit( (unsigned char) props[i][sizeof("maxbufsize")] ) ) {
942 maxbufsize = atoi( &props[i][sizeof("maxbufsize")] );
944 return LDAP_NOT_SUPPORTED;
947 if( maxbufsize && (( maxbufsize < SASL_MIN_BUFF_SIZE )
948 || (maxbufsize > SASL_MAX_BUFF_SIZE )))
951 return LDAP_PARAM_ERROR;
955 return LDAP_NOT_SUPPORTED;
960 secprops->security_flags = sflags;
963 secprops->min_ssf = min_ssf;
966 secprops->max_ssf = max_ssf;
969 secprops->maxbufsize = maxbufsize;
972 ldap_charray_free( props );
977 ldap_int_sasl_config( struct ldapoptions *lo, int option, const char *arg )
982 case LDAP_OPT_X_SASL_SECPROPS:
983 rc = ldap_pvt_sasl_secprops( arg, &lo->ldo_sasl_secprops );
984 if( rc == LDAP_SUCCESS ) return 0;
991 ldap_int_sasl_get_option( LDAP *ld, int option, void *arg )
997 case LDAP_OPT_X_SASL_MECH: {
998 *(char **)arg = ld->ld_options.ldo_def_sasl_mech
999 ? LDAP_STRDUP( ld->ld_options.ldo_def_sasl_mech ) : NULL;
1001 case LDAP_OPT_X_SASL_REALM: {
1002 *(char **)arg = ld->ld_options.ldo_def_sasl_realm
1003 ? LDAP_STRDUP( ld->ld_options.ldo_def_sasl_realm ) : NULL;
1005 case LDAP_OPT_X_SASL_AUTHCID: {
1006 *(char **)arg = ld->ld_options.ldo_def_sasl_authcid
1007 ? LDAP_STRDUP( ld->ld_options.ldo_def_sasl_authcid ) : NULL;
1009 case LDAP_OPT_X_SASL_AUTHZID: {
1010 *(char **)arg = ld->ld_options.ldo_def_sasl_authzid
1011 ? LDAP_STRDUP( ld->ld_options.ldo_def_sasl_authzid ) : NULL;
1014 case LDAP_OPT_X_SASL_SSF: {
1019 if( ld->ld_defconn == NULL ) {
1023 ctx = ld->ld_defconn->lconn_sasl_sockctx;
1025 if ( ctx == NULL ) {
1029 sc = sasl_getprop( ctx, SASL_SSF,
1030 (SASL_CONST void **) &ssf );
1032 if ( sc != SASL_OK ) {
1036 *(ber_len_t *)arg = *ssf;
1039 case LDAP_OPT_X_SASL_SSF_EXTERNAL:
1040 /* this option is write only */
1043 case LDAP_OPT_X_SASL_SSF_MIN:
1044 *(ber_len_t *)arg = ld->ld_options.ldo_sasl_secprops.min_ssf;
1046 case LDAP_OPT_X_SASL_SSF_MAX:
1047 *(ber_len_t *)arg = ld->ld_options.ldo_sasl_secprops.max_ssf;
1049 case LDAP_OPT_X_SASL_MAXBUFSIZE:
1050 *(ber_len_t *)arg = ld->ld_options.ldo_sasl_secprops.maxbufsize;
1053 case LDAP_OPT_X_SASL_SECPROPS:
1054 /* this option is write only */
1064 ldap_int_sasl_set_option( LDAP *ld, int option, void *arg )
1070 case LDAP_OPT_X_SASL_SSF:
1071 /* This option is read-only */
1074 case LDAP_OPT_X_SASL_SSF_EXTERNAL: {
1076 #if SASL_VERSION_MAJOR < 2
1077 sasl_external_properties_t extprops;
1081 if( ld->ld_defconn == NULL ) {
1085 ctx = ld->ld_defconn->lconn_sasl_authctx;
1087 if ( ctx == NULL ) {
1091 #if SASL_VERSION_MAJOR >= 2
1092 sc = sasl_setprop( ctx, SASL_SSF_EXTERNAL, arg);
1094 memset(&extprops, 0L, sizeof(extprops));
1096 extprops.ssf = * (ber_len_t *) arg;
1098 sc = sasl_setprop( ctx, SASL_SSF_EXTERNAL,
1099 (void *) &extprops );
1102 if ( sc != SASL_OK ) {
1107 case LDAP_OPT_X_SASL_SSF_MIN:
1108 ld->ld_options.ldo_sasl_secprops.min_ssf = *(ber_len_t *)arg;
1110 case LDAP_OPT_X_SASL_SSF_MAX:
1111 ld->ld_options.ldo_sasl_secprops.max_ssf = *(ber_len_t *)arg;
1113 case LDAP_OPT_X_SASL_MAXBUFSIZE:
1114 ld->ld_options.ldo_sasl_secprops.maxbufsize = *(ber_len_t *)arg;
1117 case LDAP_OPT_X_SASL_SECPROPS: {
1119 sc = ldap_pvt_sasl_secprops( (char *) arg,
1120 &ld->ld_options.ldo_sasl_secprops );
1122 return sc == LDAP_SUCCESS ? 0 : -1;
1131 #ifdef LDAP_R_COMPILE
1132 #define LDAP_DEBUG_R_SASL
1133 void *ldap_pvt_sasl_mutex_new(void)
1135 ldap_pvt_thread_mutex_t *mutex;
1137 mutex = (ldap_pvt_thread_mutex_t *) LDAP_MALLOC(
1138 sizeof(ldap_pvt_thread_mutex_t) );
1140 if ( ldap_pvt_thread_mutex_init( mutex ) == 0 ) {
1143 #ifndef LDAP_DEBUG_R_SASL
1145 #endif /* !LDAP_DEBUG_R_SASL */
1149 int ldap_pvt_sasl_mutex_lock(void *mutex)
1151 #ifdef LDAP_DEBUG_R_SASL
1152 if ( mutex == NULL ) {
1155 #else /* !LDAP_DEBUG_R_SASL */
1157 #endif /* !LDAP_DEBUG_R_SASL */
1158 return ldap_pvt_thread_mutex_lock( (ldap_pvt_thread_mutex_t *)mutex )
1159 ? SASL_FAIL : SASL_OK;
1162 int ldap_pvt_sasl_mutex_unlock(void *mutex)
1164 #ifdef LDAP_DEBUG_R_SASL
1165 if ( mutex == NULL ) {
1168 #else /* !LDAP_DEBUG_R_SASL */
1170 #endif /* !LDAP_DEBUG_R_SASL */
1171 return ldap_pvt_thread_mutex_unlock( (ldap_pvt_thread_mutex_t *)mutex )
1172 ? SASL_FAIL : SASL_OK;
1175 void ldap_pvt_sasl_mutex_dispose(void *mutex)
1177 #ifdef LDAP_DEBUG_R_SASL
1178 if ( mutex == NULL ) {
1181 #else /* !LDAP_DEBUG_R_SASL */
1183 #endif /* !LDAP_DEBUG_R_SASL */
1184 (void) ldap_pvt_thread_mutex_destroy( (ldap_pvt_thread_mutex_t *)mutex );
1190 int ldap_int_sasl_init( void )
1191 { return LDAP_SUCCESS; }
1193 int ldap_int_sasl_close( LDAP *ld, LDAPConn *lc )
1194 { return LDAP_SUCCESS; }
1201 LDAPControl **sctrls,
1202 LDAPControl **cctrls,
1204 LDAP_SASL_INTERACT_PROC *interact,
1206 { return LDAP_NOT_SUPPORTED; }
1209 ldap_int_sasl_external(
1212 const char * authid,
1214 { return LDAP_SUCCESS; }
1216 #endif /* HAVE_CYRUS_SASL */