/* $OpenLDAP$ */
/*
- * Copyright 1998-2000 The OpenLDAP Foundation, All Rights Reserved.
+ * Copyright 1998-2002 The OpenLDAP Foundation, All Rights Reserved.
* COPYING RESTRICTIONS APPLY, see COPYRIGHT file
*/
#include "portable.h"
-#include <ac/stdlib.h>
#include <stdio.h>
-
-#include "slap.h"
-#include "proto-slap.h"
+#include <ac/stdlib.h>
+#include <ac/string.h>
#include <lber.h>
#include <ldap_log.h>
-char **supportedSASLMechanisms = NULL;
-char *sasl_host = NULL;
+#include "slap.h"
#ifdef HAVE_CYRUS_SASL
+#include <limits.h>
+
+#ifdef HAVE_SASL_SASL_H
+#include <sasl/sasl.h>
+#else
+#include <sasl.h>
+#endif
+
+#if SASL_VERSION_MAJOR >= 2
+#include <lutil.h>
+#define SASL_CONST const
+#else
+#define SASL_CONST
+#endif
+
+#include <ldap_pvt.h>
#ifdef SLAPD_SPASSWD
#include <lutil.h>
#endif
-static void *slap_sasl_mutex_new(void)
+/* Flags for telling slap_sasl_getdn() what type of identity is being passed */
+#define FLAG_GETDN_FINAL 1
+#define FLAG_GETDN_AUTHCID 2
+#define FLAG_GETDN_AUTHZID 4
+
+static sasl_security_properties_t sasl_secprops;
+
+static int
+slap_sasl_log(
+ void *context,
+ int priority,
+ const char *message)
{
- ldap_pvt_thread_mutex_t *mutex;
+ Connection *conn = context;
+ int level;
+ const char * label;
+
+ if ( message == NULL ) {
+ return SASL_BADPARAM;
+ }
- mutex = (ldap_pvt_thread_mutex_t *) ch_malloc( sizeof(ldap_pvt_thread_mutex_t) );
- if ( ldap_pvt_thread_mutex_init( mutex ) == 0 ) {
- return mutex;
+ switch (priority) {
+#if SASL_VERSION_MAJOR >= 2
+ case SASL_LOG_NONE:
+ level = LDAP_DEBUG_NONE;
+ label = "None";
+ break;
+ case SASL_LOG_ERR:
+ level = LDAP_DEBUG_ANY;
+ label = "Error";
+ break;
+ case SASL_LOG_FAIL:
+ level = LDAP_DEBUG_ANY;
+ label = "Failure";
+ break;
+ case SASL_LOG_WARN:
+ level = LDAP_DEBUG_TRACE;
+ label = "Warning";
+ break;
+ case SASL_LOG_NOTE:
+ level = LDAP_DEBUG_TRACE;
+ label = "Notice";
+ break;
+ case SASL_LOG_DEBUG:
+ level = LDAP_DEBUG_TRACE;
+ label = "Debug";
+ break;
+ case SASL_LOG_TRACE:
+ level = LDAP_DEBUG_TRACE;
+ label = "Trace";
+ break;
+ case SASL_LOG_PASS:
+ level = LDAP_DEBUG_TRACE;
+ label = "Password Trace";
+ break;
+#else
+ case SASL_LOG_ERR:
+ level = LDAP_DEBUG_ANY;
+ label = "Error";
+ break;
+ case SASL_LOG_WARNING:
+ level = LDAP_DEBUG_TRACE;
+ label = "Warning";
+ break;
+ case SASL_LOG_INFO:
+ level = LDAP_DEBUG_TRACE;
+ label = "Info";
+ break;
+#endif
+ default:
+ return SASL_BADPARAM;
}
- return NULL;
+
+#ifdef NEW_LOGGING
+ LDAP_LOG(( "sasl", LDAP_LEVEL_ENTRY,
+ "SASL [conn=%ld] %s: %s\n",
+ conn ? conn->c_connid : -1,
+ label, message ));
+#else
+ Debug( level, "SASL [conn=%ld] %s: %s\n",
+ conn ? conn->c_connid: -1,
+ label, message );
+#endif
+
+
+ return SASL_OK;
}
-static int slap_sasl_mutex_lock(void *mutex)
+
+/* Take any sort of identity string and return a DN with the "dn:" prefix. The
+ string returned in *dn is in its own allocated memory, and must be free'd
+ by the calling process.
+ -Mark Adamson, Carnegie Mellon
+*/
+
+#define SET_DN 1
+#define SET_U 2
+
+static struct berval ext_bv = { sizeof("EXTERNAL")-1, "EXTERNAL" };
+
+int slap_sasl_getdn( Connection *conn, char *id,
+ char *user_realm, struct berval *dn, int flags )
{
- return ldap_pvt_thread_mutex_lock( (ldap_pvt_thread_mutex_t *)mutex );
+ char *c1;
+ int rc, len, is_dn = 0;
+ sasl_conn_t *ctx;
+ struct berval dn2;
+
+#ifdef NEW_LOGGING
+ LDAP_LOG(( "sasl", LDAP_LEVEL_ENTRY,
+ "slap_sasl_getdn: conn %d id=%s\n",
+ conn ? conn->c_connid : -1,
+ id ? (*id ? id : "<empty>") : "NULL" ));
+#else
+ Debug( LDAP_DEBUG_ARGS, "slap_sasl_getdn: id=%s\n",
+ id?(*id?id:"<empty>"):"NULL",0,0 );
+#endif
+
+ dn->bv_val = NULL;
+ dn->bv_len = 0;
+
+ /* Blatantly anonymous ID */
+ if( id &&
+ ( id[sizeof( "anonymous" )-1] == '\0'
+ || id[sizeof( "anonymous" )-1] == '@' ) &&
+ !strncasecmp( id, "anonymous", sizeof( "anonymous" )-1) ) {
+ return( LDAP_SUCCESS );
+ }
+ ctx = conn->c_sasl_context;
+ len = strlen( id );
+
+ /* An authcID needs to be converted to authzID form */
+ if( flags & FLAG_GETDN_AUTHCID ) {
+ if( sasl_external_x509dn_convert
+ && conn->c_sasl_bind_mech.bv_len == ext_bv.bv_len
+ && ( strcasecmp( ext_bv.bv_val, conn->c_sasl_bind_mech.bv_val ) == 0 )
+ && id[0] == '/' )
+ {
+ /* check SASL external for X.509 style DN and */
+ /* convert to dn:<dn> form */
+ dn->bv_val = ldap_dcedn2dn( id );
+ dn->bv_len = strlen(dn->bv_val);
+ is_dn = SET_DN;
+
+ } else {
+ /* convert to u:<username> form */
+ ber_str2bv( id, len, 1, dn );
+ is_dn = SET_U;
+ }
+ }
+ if( !is_dn ) {
+ if( !strncasecmp( id, "u:", sizeof("u:")-1 )) {
+ is_dn = SET_U;
+ ber_str2bv( id+2, len-2, 1, dn );
+ } else if ( !strncasecmp( id, "dn:", sizeof("dn:")-1) ) {
+ is_dn = SET_DN;
+ ber_str2bv( id+3, len-3, 1, dn );
+ }
+ }
+
+ /* An authzID must be properly prefixed */
+ if( (flags & FLAG_GETDN_AUTHZID) && !is_dn ) {
+ free( dn->bv_val );
+ dn->bv_val = NULL;
+ dn->bv_len = 0;
+ return( LDAP_INAPPROPRIATE_AUTH );
+ }
+
+ /* Username strings */
+ if( is_dn == SET_U ) {
+ char *p;
+ len = dn->bv_len + sizeof("uid=")-1 + sizeof(",cn=auth")-1;
+
+ if( user_realm && *user_realm ) {
+ len += strlen( user_realm ) + sizeof(",cn=")-1;
+ }
+
+ if( conn->c_sasl_bind_mech.bv_len ) {
+ len += conn->c_sasl_bind_mech.bv_len + sizeof(",cn=")-1;
+ }
+
+ /* Build the new dn */
+ c1 = dn->bv_val;
+ dn->bv_val = ch_malloc( len );
+ p = slap_strcopy( dn->bv_val, "uid=" );
+ p = slap_strcopy( p, c1 );
+ ch_free( c1 );
+
+ if( user_realm ) {
+ p = slap_strcopy( p, ",cn=" );
+ p = slap_strcopy( p, user_realm );
+ }
+ if( conn->c_sasl_bind_mech.bv_len ) {
+ p = slap_strcopy( p, ",cn=" );
+ p = slap_strcopy( p, conn->c_sasl_bind_mech.bv_val );
+ }
+ p = slap_strcopy( p, ",cn=auth" );
+ dn->bv_len = p - dn->bv_val;
+ is_dn = SET_DN;
+
+#ifdef NEW_LOGGING
+ LDAP_LOG(( "sasl", LDAP_LEVEL_ENTRY,
+ "slap_sasl_getdn: u:id converted to %s.\n", dn->bv_val ));
+#else
+ Debug( LDAP_DEBUG_TRACE, "getdn: u:id converted to %s\n", dn->bv_val,0,0 );
+#endif
+ }
+
+ /* DN strings that are a cn=auth identity to run through regexp */
+ if( is_dn == SET_DN && ( ( flags & FLAG_GETDN_FINAL ) == 0 ) )
+ {
+ slap_sasl2dn( dn, &dn2 );
+ if( dn2.bv_val ) {
+ ch_free( dn->bv_val );
+ *dn = dn2;
+#ifdef NEW_LOGGING
+ LDAP_LOG(( "sasl", LDAP_LEVEL_ENTRY,
+ "slap_sasl_getdn: dn:id converted to %s.\n", dn->bv_val ));
+#else
+ Debug( LDAP_DEBUG_TRACE, "getdn: dn:id converted to %s\n",
+ dn->bv_val, 0, 0 );
+#endif
+ }
+ }
+
+ if( flags & FLAG_GETDN_FINAL ) {
+ /* omit "dn:" prefix */
+ is_dn = 0;
+ } else {
+ rc = dnNormalize2( NULL, dn, &dn2 );
+ free(dn->bv_val);
+ if ( rc != LDAP_SUCCESS ) {
+ *dn = slap_empty_bv;
+ return rc;
+ }
+ *dn = dn2;
+ }
+
+ /* Attach the "dn:" prefix if needed */
+ if ( is_dn == SET_DN ) {
+ c1 = ch_malloc( dn->bv_len + sizeof("dn:") );
+ strcpy( c1, "dn:" );
+ strcpy( c1 + 3, dn->bv_val );
+ free( dn->bv_val );
+ dn->bv_val = c1;
+ dn->bv_len += 3;
+ }
+
+ return( LDAP_SUCCESS );
+}
+
+#if SASL_VERSION_MAJOR >= 2
+static int
+slap_sasl_checkpass(
+ sasl_conn_t *sconn,
+ void *context,
+ const char *username,
+ const char *pass,
+ unsigned passlen,
+ struct propctx *propctx)
+{
+ Connection *conn = (Connection *)context;
+ struct berval dn, cred;
+ int rc;
+ BerVarray vals, bv;
+
+ cred.bv_val = (char *)pass;
+ cred.bv_len = passlen;
+
+ /* XXX can we do both steps at once? */
+ rc = slap_sasl_getdn( conn, (char *)username, NULL, &dn,
+ FLAG_GETDN_AUTHCID | FLAG_GETDN_FINAL );
+ if ( rc != LDAP_SUCCESS ) {
+ sasl_seterror( sconn, 0, ldap_err2string( rc ) );
+ return SASL_NOUSER;
+ }
+
+ if ( dn.bv_len == 0 ) {
+ sasl_seterror( sconn, 0,
+ "No password is associated with the Root DSE" );
+ if ( dn.bv_val != NULL ) {
+ ch_free( dn.bv_val );
+ }
+ return SASL_NOUSER;
+ }
+
+ rc = backend_attribute( NULL, NULL, NULL, NULL, &dn,
+ slap_schema.si_ad_userPassword, &vals);
+ if ( rc != LDAP_SUCCESS ) {
+ ch_free( dn.bv_val );
+ sasl_seterror( sconn, 0, ldap_err2string( rc ) );
+ return SASL_NOVERIFY;
+ }
+
+ rc = SASL_NOVERIFY;
+
+ if ( vals != NULL ) {
+ for ( bv = vals; bv->bv_val != NULL; bv++ ) {
+ if ( !lutil_passwd( bv, &cred, NULL ) ) {
+ rc = SASL_OK;
+ break;
+ }
+ }
+ ber_bvarray_free( vals );
+ }
+
+ if ( rc != SASL_OK ) {
+ sasl_seterror( sconn, 0,
+ ldap_err2string( LDAP_INVALID_CREDENTIALS ) );
+ }
+
+ ch_free( dn.bv_val );
+
+ return rc;
}
-static int slap_sasl_mutex_unlock(void *mutex)
+static int
+slap_sasl_canonicalize(
+ sasl_conn_t *sconn,
+ void *context,
+ const char *in,
+ unsigned inlen,
+ unsigned flags,
+ const char *user_realm,
+ char *out,
+ unsigned out_max,
+ unsigned *out_len)
{
- return ldap_pvt_thread_mutex_unlock( (ldap_pvt_thread_mutex_t *)mutex );
+ Connection *conn = (Connection *)context;
+ struct berval dn;
+ int rc;
+
+ *out_len = 0;
+
+#ifdef NEW_LOGGING
+ LDAP_LOG(( "sasl", LDAP_LEVEL_ENTRY,
+ "slap_sasl_canonicalize: conn %d %s=\"%s\"\n",
+ conn ? conn->c_connid : -1,
+ (flags == SASL_CU_AUTHID) ? "authcid" : "authzid",
+ in ? in : "<empty>" ));
+#else
+ Debug( LDAP_DEBUG_ARGS, "SASL Canonicalize [conn=%ld]: "
+ "%s=\"%s\"\n",
+ conn ? conn->c_connid : -1,
+ (flags == SASL_CU_AUTHID) ? "authcid" : "authzid",
+ in ? in : "<empty>" );
+#endif
+
+ rc = slap_sasl_getdn( conn, (char *)in, (char *)user_realm, &dn,
+ (flags == SASL_CU_AUTHID) ? FLAG_GETDN_AUTHCID : FLAG_GETDN_AUTHZID );
+ if ( rc != LDAP_SUCCESS ) {
+ sasl_seterror( sconn, 0, ldap_err2string( rc ) );
+ return SASL_NOAUTHZ;
+ }
+
+ if ( out_max < dn.bv_len ) {
+ return SASL_BUFOVER;
+ }
+
+ AC_MEMCPY( out, dn.bv_val, dn.bv_len );
+ out[dn.bv_len] = '\0';
+
+ *out_len = dn.bv_len;
+
+ ch_free( dn.bv_val );
+
+#ifdef NEW_LOGGING
+ LDAP_LOG(( "sasl", LDAP_LEVEL_ENTRY,
+ "slap_sasl_canonicalize: conn %d %s=\"%s\"\n",
+ conn ? conn->c_connid : -1,
+ (flags == SASL_CU_AUTHID) ? "authcDN" : "authzDN",
+ out ));
+#else
+ Debug( LDAP_DEBUG_ARGS, "SASL Canonicalize [conn=%ld]: "
+ "%s=\"%s\"\n",
+ conn ? conn->c_connid : -1,
+ (flags == SASL_CU_AUTHID) ? "authcDN" : "authzDN",
+ out );
+#endif
+
+ return SASL_OK;
}
-static void slap_sasl_mutex_dispose(void *mutex)
+static int
+slap_sasl_authorize(
+ sasl_conn_t *sconn,
+ void *context,
+ const char *requested_user,
+ unsigned rlen,
+ const char *auth_identity,
+ unsigned alen,
+ const char *def_realm,
+ unsigned urlen,
+ struct propctx *propctx)
{
- (void) ldap_pvt_thread_mutex_destroy( (ldap_pvt_thread_mutex_t *)mutex );
- free( mutex );
+ Connection *conn = (Connection *)context;
+ struct berval authcDN, authzDN;
+ int rc;
+
+ authcDN.bv_val = (char *)auth_identity;
+ authcDN.bv_len = alen;
+
+ authzDN.bv_val = (char *)requested_user;
+ authzDN.bv_len = rlen;
+
+#ifdef NEW_LOGGING
+ LDAP_LOG(( "sasl", LDAP_LEVEL_ENTRY,
+ "slap_sasl_authorize: conn %d authcDN=\"%s\" authzDN=\"%s\"\n",
+ conn ? conn->c_connid : -1, authcDN.bv_val, authzDN.bv_val));
+#else
+ Debug( LDAP_DEBUG_ARGS, "SASL Authorize [conn=%ld]: "
+ "authcDN=\"%s\" authzDN=\"%s\"\n",
+ conn ? conn->c_connid : -1, authcDN.bv_val, authzDN.bv_val );
+#endif
+
+ rc = slap_sasl_authorized( &authcDN, &authzDN );
+ if ( rc != LDAP_SUCCESS ) {
+#ifdef NEW_LOGGING
+ LDAP_LOG(( "sasl", LDAP_LEVEL_INFO,
+ "slap_sasl_authorize: conn %ld authorization disallowed (%d)\n",
+ (long)(conn ? conn->c_connid : -1), rc ));
+#else
+ Debug( LDAP_DEBUG_TRACE, "SASL Authorize [conn=%ld]: "
+ " authorization disallowed (%d)\n",
+ (long) (conn ? conn->c_connid : -1), rc, 0 );
+#endif
+
+ sasl_seterror( sconn, 0, "not authorized" );
+ return SASL_NOAUTHZ;
+ }
+
+#ifdef NEW_LOGGING
+ LDAP_LOG(( "sasl", LDAP_LEVEL_ENTRY,
+ "slap_sasl_authorize: conn %d authorization allowed\n",
+ (long)(conn ? conn->c_connid : -1 ) ));
+#else
+ Debug( LDAP_DEBUG_TRACE, "SASL Authorize [conn=%ld]: "
+ " authorization allowed\n",
+ (long) (conn ? conn->c_connid : -1), 0, 0 );
+#endif
+
+ return SASL_OK;
+}
+#else
+static int
+slap_sasl_authorize(
+ void *context,
+ const char *authcid,
+ const char *authzid,
+ const char **user,
+ const char **errstr)
+{
+ struct berval authcDN, authzDN;
+ int rc;
+ Connection *conn = context;
+ char *realm;
+
+ *user = NULL;
+
+#ifdef NEW_LOGGING
+ LDAP_LOG(( "sasl", LDAP_LEVEL_ENTRY,
+ "slap_sasl_authorize: conn %d authcid=\"%s\" authzid=\"%s\"\n",
+ conn ? conn->c_connid : -1,
+ authcid ? authcid : "<empty>",
+ authzid ? authzid : "<empty>" ));
+#else
+ Debug( LDAP_DEBUG_ARGS, "SASL Authorize [conn=%ld]: "
+ "authcid=\"%s\" authzid=\"%s\"\n",
+ (long) (conn ? conn->c_connid : -1),
+ authcid ? authcid : "<empty>",
+ authzid ? authzid : "<empty>" );
+#endif
+
+ /* Figure out how much data we have for the dn */
+ rc = sasl_getprop( conn->c_sasl_context, SASL_REALM, (void **)&realm );
+ if( rc != SASL_OK && rc != SASL_NOTDONE ) {
+#ifdef NEW_LOGGING
+ LDAP_LOG(( "sasl", LDAP_LEVEL_ERR,
+ "slap_sasl_authorize: getprop(REALM) failed.\n" ));
+#else
+ Debug(LDAP_DEBUG_TRACE,
+ "authorize: getprop(REALM) failed!\n", 0,0,0);
+#endif
+ *errstr = "Could not extract realm";
+ return SASL_NOAUTHZ;
+ }
+
+ /* Convert the identities to DN's. If no authzid was given, client will
+ be bound as the DN matching their username */
+ rc = slap_sasl_getdn( conn, (char *)authcid, realm, &authcDN, FLAG_GETDN_AUTHCID );
+ if( rc != LDAP_SUCCESS ) {
+ *errstr = ldap_err2string( rc );
+ return SASL_NOAUTHZ;
+ }
+ if( ( authzid == NULL ) || !strcmp( authcid,authzid ) ) {
+#ifdef NEW_LOGGING
+ LDAP_LOG(( "sasl", LDAP_LEVEL_ENTRY,
+ "slap_sasl_authorize: conn %d Using authcDN=%s\n",
+ conn ? conn->c_connid : -1, authcDN.bv_val ));
+#else
+ Debug( LDAP_DEBUG_TRACE, "SASL Authorize [conn=%ld]: "
+ "Using authcDN=%s\n", (long) (conn ? conn->c_connid : -1), authcDN.bv_val,0 );
+#endif
+
+ *user = authcDN.bv_val;
+ *errstr = NULL;
+ return SASL_OK;
+ }
+ rc = slap_sasl_getdn( conn, (char *)authzid, realm, &authzDN, FLAG_GETDN_AUTHZID );
+ if( rc != LDAP_SUCCESS ) {
+ ch_free( authcDN.bv_val );
+ *errstr = ldap_err2string( rc );
+ return SASL_NOAUTHZ;
+ }
+
+ rc = slap_sasl_authorized( &authcDN, &authzDN );
+ if( rc ) {
+#ifdef NEW_LOGGING
+ LDAP_LOG(( "sasl", LDAP_LEVEL_INFO,
+ "slap_sasl_authorize: conn %ld authorization disallowed (%d)\n",
+ (long)(conn ? conn->c_connid : -1), rc ));
+#else
+ Debug( LDAP_DEBUG_TRACE, "SASL Authorize [conn=%ld]: "
+ " authorization disallowed (%d)\n",
+ (long) (conn ? conn->c_connid : -1), rc, 0 );
+#endif
+
+ *errstr = "not authorized";
+ ch_free( authcDN.bv_val );
+ ch_free( authzDN.bv_val );
+ return SASL_NOAUTHZ;
+ }
+
+#ifdef NEW_LOGGING
+ LDAP_LOG(( "sasl", LDAP_LEVEL_ENTRY,
+ "slap_sasl_authorize: conn %d authorization allowed\n",
+ (long)(conn ? conn->c_connid : -1 ) ));
+#else
+ Debug( LDAP_DEBUG_TRACE, "SASL Authorize [conn=%ld]: "
+ " authorization allowed\n",
+ (long) (conn ? conn->c_connid : -1), 0, 0 );
+#endif
+
+
+ ch_free( authcDN.bv_val );
+ *user = authzDN.bv_val;
+ *errstr = NULL;
+ return SASL_OK;
}
+#endif /* SASL_VERSION_MAJOR >= 2 */
static int
slap_sasl_err2ldap( int saslerr )
case SASL_CONTINUE:
rc = LDAP_SASL_BIND_IN_PROGRESS;
break;
- case SASL_OK:
- rc = LDAP_SUCCESS;
- break;
case SASL_FAIL:
rc = LDAP_OTHER;
break;
return rc;
}
+#endif
-int sasl_init( void )
+int slap_sasl_init( void )
{
+#ifdef HAVE_CYRUS_SASL
int rc;
- char *mechs;
- sasl_conn_t *server = NULL;
+ static sasl_callback_t server_callbacks[] = {
+ { SASL_CB_LOG, &slap_sasl_log, NULL },
+ { SASL_CB_LIST_END, NULL, NULL }
+ };
- sasl_set_alloc( ch_malloc, ch_calloc, ch_realloc, ch_free );
+ sasl_set_alloc(
+ ch_malloc,
+ ch_calloc,
+ ch_realloc,
+ ch_free );
sasl_set_mutex(
- slap_sasl_mutex_new,
- slap_sasl_mutex_lock,
- slap_sasl_mutex_unlock,
- slap_sasl_mutex_dispose );
+ ldap_pvt_sasl_mutex_new,
+ ldap_pvt_sasl_mutex_lock,
+ ldap_pvt_sasl_mutex_unlock,
+ ldap_pvt_sasl_mutex_dispose );
- rc = sasl_server_init( NULL, "slapd" );
+ /* should provide callbacks for logging */
+ /* server name should be configurable */
+ rc = sasl_server_init( server_callbacks, "slapd" );
if( rc != SASL_OK ) {
+#ifdef NEW_LOGGING
+ LDAP_LOG(( "sasl", LDAP_LEVEL_INFO,
+ "slap_sasl_init: init failed.\n" ));
+#else
Debug( LDAP_DEBUG_ANY, "sasl_server_init failed\n",
0, 0, 0 );
+#endif
+
return -1;
}
- if( sasl_host == NULL ) {
- static char hostname[MAXHOSTNAMELEN+1];
+#ifdef NEW_LOGGING
+ LDAP_LOG(( "sasl", LDAP_LEVEL_INFO,
+ "slap_sasl_init: initialized!\n"));
+#else
+ Debug( LDAP_DEBUG_TRACE, "slap_sasl_init: initialized!\n",
+ 0, 0, 0 );
+#endif
- if( gethostname( hostname, MAXHOSTNAMELEN ) == 0 ) {
- hostname[MAXHOSTNAMELEN] = '\0';
- sasl_host = hostname;
- }
+
+ /* default security properties */
+ memset( &sasl_secprops, '\0', sizeof(sasl_secprops) );
+ sasl_secprops.max_ssf = INT_MAX;
+ sasl_secprops.maxbufsize = 65536;
+ sasl_secprops.security_flags = SASL_SEC_NOPLAINTEXT|SASL_SEC_NOANONYMOUS;
+#endif
+
+ return 0;
+}
+
+int slap_sasl_destroy( void )
+{
+#ifdef HAVE_CYRUS_SASL
+ sasl_done();
+#endif
+ free( global_host );
+ global_host = NULL;
+
+ return 0;
+}
+
+int slap_sasl_open( Connection *conn )
+{
+ int cb, sc = LDAP_SUCCESS;
+#if SASL_VERSION_MAJOR >= 2
+ char *ipremoteport = NULL, *iplocalport = NULL;
+#endif
+
+#ifdef HAVE_CYRUS_SASL
+ sasl_conn_t *ctx = NULL;
+ sasl_callback_t *session_callbacks;
+
+ assert( conn->c_sasl_context == NULL );
+ assert( conn->c_sasl_extra == NULL );
+
+ conn->c_sasl_layers = 0;
+
+ session_callbacks =
+#if SASL_VERSION_MAJOR >= 2
+ ch_calloc( 5, sizeof(sasl_callback_t));
+#else
+ ch_calloc( 3, sizeof(sasl_callback_t));
+#endif
+ conn->c_sasl_extra = session_callbacks;
+
+ session_callbacks[cb=0].id = SASL_CB_LOG;
+ session_callbacks[cb].proc = &slap_sasl_log;
+ session_callbacks[cb++].context = conn;
+
+ session_callbacks[cb].id = SASL_CB_PROXY_POLICY;
+ session_callbacks[cb].proc = &slap_sasl_authorize;
+ session_callbacks[cb++].context = conn;
+
+#if SASL_VERSION_MAJOR >= 2
+ session_callbacks[cb].id = SASL_CB_CANON_USER;
+ session_callbacks[cb].proc = &slap_sasl_canonicalize;
+ session_callbacks[cb++].context = conn;
+
+ /* XXXX: this should be conditional */
+ session_callbacks[cb].id = SASL_CB_SERVER_USERDB_CHECKPASS;
+ session_callbacks[cb].proc = &slap_sasl_checkpass;
+ session_callbacks[cb++].context = conn;
+#endif
+
+ session_callbacks[cb].id = SASL_CB_LIST_END;
+ session_callbacks[cb].proc = NULL;
+ session_callbacks[cb++].context = NULL;
+
+ if( global_host == NULL ) {
+ global_host = ldap_pvt_get_fqdn( NULL );
}
- rc = sasl_server_new( "ldap", sasl_host, NULL, NULL,
- SASL_SECURITY_LAYER,
- &server );
+ /* create new SASL context */
+#if SASL_VERSION_MAJOR >= 2
+ if ( conn->c_sock_name.bv_len != 0 &&
+ strncmp( conn->c_sock_name.bv_val, "IP=", 3 ) == 0) {
+ char *p;
- if( rc != SASL_OK ) {
- Debug( LDAP_DEBUG_ANY, "sasl_server_new failed\n",
- 0, 0, 0 );
- return -1;
+ iplocalport = ch_strdup( conn->c_sock_name.bv_val + 3 );
+ /* Convert IPv6 addresses to address;port syntax. */
+ p = strrchr( iplocalport, ' ' );
+ if ( p != NULL ) {
+ *p = ';';
+ }
}
+ if ( conn->c_peer_name.bv_len != 0 &&
+ strncmp( conn->c_peer_name.bv_val, "IP=", 3 ) == 0) {
+ char *p;
-#ifdef RESTRICT_SASL
- {
- sasl_security_properties_t secprops;
- memset(&secprops, 0, sizeof(secprops));
- secprops.security_flags = SASL_SEC_NOPLAINTEXT | SASL_SEC_NOANONYMOUS;
- secprops.property_names = NULL;
- secprops.property_values = NULL;
-
- rc = sasl_setprop( server, SASL_SEC_PROPS, &secprops );
-
- if( rc != SASL_OK ) {
- Debug( LDAP_DEBUG_ANY, "sasl_setprop failed\n",
- 0, 0, 0 );
- return -1;
+ ipremoteport = ch_strdup( conn->c_peer_name.bv_val + 3 );
+ /* Convert IPv6 addresses to address;port syntax. */
+ p = strrchr( ipremoteport, ' ' );
+ if ( p != NULL ) {
+ *p = ';';
}
}
+ sc = sasl_server_new( "ldap", global_host, global_realm,
+ iplocalport, ipremoteport, session_callbacks, 0, &ctx );
+ if ( iplocalport != NULL ) {
+ ch_free( iplocalport );
+ }
+ if ( ipremoteport != NULL ) {
+ ch_free( ipremoteport );
+ }
+#else
+ sc = sasl_server_new( "ldap", global_host, global_realm,
+ session_callbacks, SASL_SECURITY_LAYER, &ctx );
#endif
- rc = sasl_listmech( server, NULL, NULL, ",", NULL,
- &mechs, NULL, NULL);
+ if( sc != SASL_OK ) {
+#ifdef NEW_LOGGING
+ LDAP_LOG(( "sasl", LDAP_LEVEL_ERR,
+ "slap_sasl_open: sasl_server_new failed: %d\n", sc ));
+#else
+ Debug( LDAP_DEBUG_ANY, "sasl_server_new failed: %d\n",
+ sc, 0, 0 );
+#endif
- if( rc != SASL_OK ) {
- Debug( LDAP_DEBUG_ANY, "sasl_listmech failed: %d\n",
- rc, 0, 0 );
return -1;
}
- Debug( LDAP_DEBUG_TRACE, "SASL mechanisms: %s\n",
- mechs, 0, 0 );
+ conn->c_sasl_context = ctx;
- supportedSASLMechanisms = str2charray( mechs, "," );
+ if( sc == SASL_OK ) {
+ sc = sasl_setprop( ctx,
+ SASL_SEC_PROPS, &sasl_secprops );
-#ifdef SLAPD_SPASSWD
- lutil_passwd_sasl_conn = server;
+ if( sc != SASL_OK ) {
+#ifdef NEW_LOGGING
+ LDAP_LOG(( "sasl", LDAP_LEVEL_ERR,
+ "slap_sasl_open: sasl_setprop failed: %d \n", sc ));
#else
- sasl_dispose( &server );
+ Debug( LDAP_DEBUG_ANY, "sasl_setprop failed: %d\n",
+ sc, 0, 0 );
#endif
- return 0;
+ slap_sasl_close( conn );
+ return -1;
+ }
+ }
+
+ sc = slap_sasl_err2ldap( sc );
+#endif
+ return sc;
}
-int sasl_destroy( void )
+int slap_sasl_external(
+ Connection *conn,
+ slap_ssf_t ssf,
+ const char *auth_id )
{
-#ifdef SLAPD_SPASSWD
- sasl_dispose( &lutil_passwd_sasl_conn );
+#if SASL_VERSION_MAJOR >= 2
+ int sc;
+ sasl_conn_t *ctx = conn->c_sasl_context;
+
+ if ( ctx == NULL ) {
+ return LDAP_UNAVAILABLE;
+ }
+
+ sc = sasl_setprop( ctx, SASL_SSF_EXTERNAL, &ssf );
+
+ if ( sc != SASL_OK ) {
+ return LDAP_OTHER;
+ }
+
+ sc = sasl_setprop( ctx, SASL_AUTH_EXTERNAL, auth_id );
+
+ if ( sc != SASL_OK ) {
+ return LDAP_OTHER;
+ }
+
+#elif defined(HAVE_CYRUS_SASL)
+ int sc;
+ sasl_conn_t *ctx = conn->c_sasl_context;
+ sasl_external_properties_t extprops;
+
+ if ( ctx == NULL ) {
+ return LDAP_UNAVAILABLE;
+ }
+
+ memset( &extprops, '\0', sizeof(extprops) );
+ extprops.ssf = ssf;
+ extprops.auth_id = (char *) auth_id;
+
+ sc = sasl_setprop( ctx, SASL_SSF_EXTERNAL,
+ (void *) &extprops );
+
+ if ( sc != SASL_OK ) {
+ return LDAP_OTHER;
+ }
#endif
- charray_free( supportedSASLMechanisms );
- return 0;
+
+ return LDAP_SUCCESS;
}
+int slap_sasl_reset( Connection *conn )
+{
#ifdef HAVE_CYRUS_SASL
-int sasl_bind(
- Connection *conn,
- Operation *op,
- char *dn,
- char *ndn,
- char *mech,
- struct berval *cred,
- char **edn )
+ sasl_conn_t *ctx = conn->c_sasl_context;
+
+ if( ctx != NULL ) {
+ }
+#endif
+ /* must return "anonymous" */
+ return LDAP_SUCCESS;
+}
+
+char ** slap_sasl_mechs( Connection *conn )
{
- struct berval response;
- const char *errstr;
- int sc;
- int rc = 1;
+ char **mechs = NULL;
- Debug(LDAP_DEBUG_ARGS, "==> sasl_bind: dn=%s, mech=%s, cred->bv_len=%d\n",
- dn, mech, cred ? cred->bv_len : 0 );
+#ifdef HAVE_CYRUS_SASL
+ sasl_conn_t *ctx = conn->c_sasl_context;
- if ( conn->c_sasl_bind_context == NULL ) {
- sasl_callback_t callbacks[4];
- int cbnum = 0;
+ if( ctx != NULL ) {
+ int sc;
+ SASL_CONST char *mechstr;
-#if 0
- if (be->be_sasl_authorize) {
- callbacks[cbnum].id = SASL_CB_PROXY_POLICY;
- callbacks[cbnum].proc = be->be_sasl_authorize;
- callbacks[cbnum].context = be;
- ++cbnum;
- }
+ sc = sasl_listmech( ctx,
+ NULL, NULL, ",", NULL,
+ &mechstr, NULL, NULL );
- if (be->be_sasl_getsecret) {
- callbacks[cbnum].id = SASL_CB_SERVER_GETSECRET;
- callbacks[cbnum].proc = be->be_sasl_getsecret;
- callbacks[cbnum].context = be;
- ++cbnum;
- }
+ if( sc != SASL_OK ) {
+#ifdef NEW_LOGGING
+ LDAP_LOG(( "sasl", LDAP_LEVEL_ERR,
+ "slap_sasl_mechs: sasl_listmech failed: %d\n", sc ));
+#else
+ Debug( LDAP_DEBUG_ANY, "slap_sasl_listmech failed: %d\n",
+ sc, 0, 0 );
+#endif
- if (be->be_sasl_putsecret) {
- callbacks[cbnum].id = SASL_CB_SERVER_PUTSECRET;
- callbacks[cbnum].proc = be->be_sasl_putsecret;
- callbacks[cbnum].context = be;
- ++cbnum;
+ return NULL;
}
+
+ mechs = str2charray( mechstr, "," );
+
+#if SASL_VERSION_MAJOR < 2
+ ch_free( mechstr );
+#endif
+ }
#endif
- callbacks[cbnum].id = SASL_CB_LIST_END;
- callbacks[cbnum].proc = NULL;
- callbacks[cbnum].context = NULL;
+ return mechs;
+}
- /* create new SASL context */
- sc = sasl_server_new( "ldap", sasl_host, global_realm,
- callbacks, SASL_SECURITY_LAYER, &conn->c_sasl_bind_context );
+int slap_sasl_close( Connection *conn )
+{
+#ifdef HAVE_CYRUS_SASL
+ sasl_conn_t *ctx = conn->c_sasl_context;
+
+ if( ctx != NULL ) {
+ sasl_dispose( &ctx );
+ }
+
+ conn->c_sasl_context = NULL;
+
+ free( conn->c_sasl_extra );
+ conn->c_sasl_extra = NULL;
+#endif
+
+ return LDAP_SUCCESS;
+}
+
+int slap_sasl_bind(
+ Connection *conn,
+ Operation *op,
+ struct berval *dn,
+ struct berval *ndn,
+ struct berval *cred,
+ struct berval *edn,
+ slap_ssf_t *ssfp )
+{
+ int rc = 1;
+
+#ifdef HAVE_CYRUS_SASL
+ sasl_conn_t *ctx = conn->c_sasl_context;
+ struct berval response;
+ unsigned reslen = 0;
+ const char *errstr = NULL;
+ int sc;
+
+#ifdef NEW_LOGGING
+ LDAP_LOG(( "sasl", LDAP_LEVEL_ENTRY,
+ "sasl_bind: conn %ld dn=\"%s\" mech=%s datalen=%ld\n",
+ conn->c_connid,
+ dn->bv_len ? dn->bv_val : "",
+ conn->c_sasl_bind_in_progress ? "<continuing>" : conn->c_sasl_bind_mech.bv_val,
+ cred ? cred->bv_len : 0 ));
+#else
+ Debug(LDAP_DEBUG_ARGS,
+ "==> sasl_bind: dn=\"%s\" mech=%s datalen=%ld\n",
+ dn->bv_len ? dn->bv_val : "",
+ conn->c_sasl_bind_in_progress ? "<continuing>":conn->c_sasl_bind_mech.bv_val,
+ cred ? cred->bv_len : 0 );
+#endif
+
+
+ if( ctx == NULL ) {
+ send_ldap_result( conn, op, LDAP_UNAVAILABLE,
+ NULL, "SASL unavailable on this session", NULL, NULL );
+ return rc;
+ }
+
+#if SASL_VERSION_MAJOR >= 2
+#define START( ctx, mech, cred, clen, resp, rlen, err ) \
+ sasl_server_start( ctx, mech, cred, clen, resp, rlen )
+#define STEP( ctx, cred, clen, resp, rlen, err ) \
+ sasl_server_step( ctx, cred, clen, resp, rlen )
+#else
+#define START( ctx, mech, cred, clen, resp, rlen, err ) \
+ sasl_server_start( ctx, mech, cred, clen, resp, rlen, err )
+#define STEP( ctx, cred, clen, resp, rlen, err ) \
+ sasl_server_step( ctx, cred, clen, resp, rlen, err )
+#endif
+
+ if ( !conn->c_sasl_bind_in_progress ) {
+ sc = START( ctx,
+ conn->c_sasl_bind_mech.bv_val,
+ cred->bv_len ? cred->bv_val : "",
+ cred->bv_len,
+ (SASL_CONST char **)&response.bv_val, &reslen, &errstr );
- if( sc != SASL_OK ) {
- send_ldap_result( conn, op, rc = LDAP_AUTH_METHOD_NOT_SUPPORTED,
- NULL, NULL, NULL, NULL );
- } else {
- conn->c_authmech = ch_strdup( mech );
- sc = sasl_server_start( conn->c_sasl_bind_context, conn->c_authmech,
- cred->bv_val, cred->bv_len, (char **)&response.bv_val,
- (unsigned *)&response.bv_len, &errstr );
- if ( (sc != SASL_OK) && (sc != SASL_CONTINUE) ) {
- send_ldap_result( conn, op, rc = slap_sasl_err2ldap( sc ),
- NULL, errstr, NULL, NULL );
- }
- }
} else {
- sc = sasl_server_step( conn->c_sasl_bind_context, cred->bv_val, cred->bv_len,
- (char **)&response.bv_val, (unsigned *)&response.bv_len, &errstr );
- if ( (sc != SASL_OK) && (sc != SASL_CONTINUE) ) {
- send_ldap_result( conn, op, rc = slap_sasl_err2ldap( sc ),
- NULL, errstr, NULL, NULL );
- }
+ sc = STEP( ctx,
+ cred->bv_val, cred->bv_len,
+ (SASL_CONST char **)&response.bv_val, &reslen, &errstr );
}
+ response.bv_len = reslen;
+
if ( sc == SASL_OK ) {
- char *authzid;
+ char *username = NULL;
+ char *realm = NULL;
+
+#if SASL_VERSION_MAJOR >= 2
+ sc = sasl_getprop( ctx, SASL_DEFUSERREALM, (const void **)&realm );
+#else
+ sc = sasl_getprop( ctx, SASL_REALM, (void **)&realm );
+#endif
+ sc = sasl_getprop( ctx,
+ SASL_USERNAME, (SASL_CONST void **)&username );
+
+ if ( sc != SASL_OK ) {
+#ifdef NEW_LOGGING
+ LDAP_LOG(( "sasl", LDAP_LEVEL_ERR,
+ "slap_sasl_bind: getprop(USERNAME) failed: %d\n", sc ));
+#else
+ Debug(LDAP_DEBUG_TRACE,
+ "slap_sasl_bind: getprop(USERNAME) failed!\n",
+ 0, 0, 0);
+#endif
+
- if ( ( sc = sasl_getprop( conn->c_sasl_bind_context, SASL_USERNAME,
- (void **)&authzid ) ) != SASL_OK ) {
send_ldap_result( conn, op, rc = slap_sasl_err2ldap( sc ),
- NULL, NULL, NULL, NULL );
+ NULL, "no SASL username", NULL, NULL );
} else {
- Debug(LDAP_DEBUG_TRACE, "<== sasl_bind: username=%s\n",
- authzid, 0, 0);
-
- if( strncasecmp( authzid, "anonymous", sizeof("anonyous")-1 ) &&
- ( ( authzid[sizeof("anonymous")] == '\0' ) ||
- ( authzid[sizeof("anonymous")] == '@' ) ) )
- {
- *edn = ch_malloc( sizeof( "authzid=" ) + strlen( authzid ) );
- strcpy( *edn, "authzid=" );
- strcat( *edn, authzid );
- }
+ rc = slap_sasl_getdn( conn, username, realm, edn, FLAG_GETDN_FINAL );
+
+ if( rc == LDAP_SUCCESS ) {
+ sasl_ssf_t *ssf = NULL;
+ (void) sasl_getprop( ctx, SASL_SSF, (void *)&ssf );
+ *ssfp = ssf ? *ssf : 0;
+
+ if( *ssfp ) {
+ ldap_pvt_thread_mutex_lock( &conn->c_mutex );
+ conn->c_sasl_layers++;
+ ldap_pvt_thread_mutex_unlock( &conn->c_mutex );
+ }
+
+ send_ldap_sasl( conn, op, rc,
+ NULL, NULL, NULL, NULL,
+ response.bv_len ? &response : NULL );
- send_ldap_result( conn, op, rc = LDAP_SUCCESS,
- NULL, NULL, NULL, NULL );
+ } else {
+ send_ldap_result( conn, op, rc,
+ NULL, errstr, NULL, NULL );
+ }
}
} else if ( sc == SASL_CONTINUE ) {
send_ldap_sasl( conn, op, rc = LDAP_SASL_BIND_IN_PROGRESS,
- NULL, NULL, NULL, NULL, &response );
- }
+ NULL, NULL, NULL, NULL, &response );
- if ( sc != SASL_CONTINUE && conn->c_sasl_bind_context != NULL ) {
- sasl_dispose( &conn->c_sasl_bind_context );
- conn->c_sasl_bind_context = NULL;
+ } else {
+ send_ldap_result( conn, op, rc = slap_sasl_err2ldap( sc ),
+ NULL, errstr, NULL, NULL );
}
- Debug(LDAP_DEBUG_TRACE, "<== sasl_bind: rc=%d\n", rc, 0, 0);
+#if SASL_VERSION_MAJOR < 2
+ if( response.bv_len ) {
+ ch_free( response.bv_val );
+ }
+#endif
- return rc;
-}
-#endif /* HAVE_CYRUS_SASL */
-
-#else
-/* no SASL support */
-int sasl_bind(
- Connection *conn,
- Operation *op,
- char *dn,
- char *ndn,
- char *mech,
- struct berval *cred,
- char **edn )
-{
- int rc;
+#ifdef NEW_LOGGING
+ LDAP_LOG(( "sasl", LDAP_LEVEL_ENTRY,
+ "slap_sasl_bind: rc=%d\n", rc ));
+#else
+ Debug(LDAP_DEBUG_TRACE, "<== slap_sasl_bind: rc=%d\n", rc, 0, 0);
+#endif
- send_ldap_result( conn, op, rc = LDAP_UNWILLING_TO_PERFORM,
- NULL, "SASL unavailable", NULL, NULL );
+
+#else
+ send_ldap_result( conn, op, rc = LDAP_UNAVAILABLE,
+ NULL, "SASL not supported", NULL, NULL );
+#endif
return rc;
}
-int sasl_init( void ) { return 0; }
-int sasl_destroy( void ) { return 0; }
+char* slap_sasl_secprops( const char *in )
+{
+#ifdef HAVE_CYRUS_SASL
+ int rc = ldap_pvt_sasl_secprops( in, &sasl_secprops );
+
+ return rc == LDAP_SUCCESS ? NULL : "Invalid security properties";
+#else
+ return "SASL not supported";
#endif
+}
projects / openldap / blobdiff