-/*
- * Copyright (c) 2000, Mark Adamson, Carnegie Mellon. All rights reserved.
- * This software is not subject to any license of Carnegie Mellon University.
+/* $OpenLDAP$ */
+/* This work is part of OpenLDAP Software <http://www.openldap.org/>.
*
- * Redistribution and use in source and binary forms are permitted without
- * restriction or fee of any kind as long as this notice is preserved.
+ * Copyright 1998-2007 The OpenLDAP Foundation.
+ * Portions Copyright 2000 Mark Adamson, Carnegie Mellon.
+ * All rights reserved.
*
- * The name "Carnegie Mellon" must not be used to endorse or promote
- * products derived from this software without prior written permission.
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted only as authorized by the OpenLDAP
+ * Public License.
*
+ * A copy of this license is available in the file LICENSE in the
+ * top-level directory of the distribution or, alternatively, at
+ * <http://www.OpenLDAP.org/license.html>.
*/
#include "portable.h"
#include <stdio.h>
+#ifdef HAVE_LIMITS_H
+#include <limits.h>
+#endif
#include <ac/stdlib.h>
#include <ac/string.h>
+#include <ac/ctype.h>
#include "slap.h"
-#ifdef HAVE_CYRUS_SASL
-#include <limits.h>
-#ifdef HAVE_CYRUS_SASL2
-#include <sasl/sasl.h>
-#else
-#include <sasl.h>
-#endif
-#include <ldap_pvt.h>
-#endif
+#include "lutil.h"
+
+#define SASLREGEX_REPLACE 10
-/* URI format: ldap://<host>/<base>[?[<attrs>][?[<scope>][?[<filter>]]]] */
+#define LDAP_X_SCOPE_EXACT ((ber_int_t) 0x0010)
+#define LDAP_X_SCOPE_REGEX ((ber_int_t) 0x0020)
+#define LDAP_X_SCOPE_CHILDREN ((ber_int_t) 0x0030)
+#define LDAP_X_SCOPE_SUBTREE ((ber_int_t) 0x0040)
+#define LDAP_X_SCOPE_ONELEVEL ((ber_int_t) 0x0050)
+#define LDAP_X_SCOPE_GROUP ((ber_int_t) 0x0060)
+#define LDAP_X_SCOPE_USERS ((ber_int_t) 0x0070)
-static int slap_parseURI( char *uri,
- struct berval *searchbase, int *scope, Filter **filter )
+/*
+ * IDs in DNauthzid form can now have a type specifier, that
+ * influences how they are used in related operations.
+ *
+ * syntax: dn[.{exact|regex}]:<val>
+ *
+ * dn.exact: the value must pass normalization and is used
+ * in exact DN match.
+ * dn.regex: the value is treated as a regular expression
+ * in matching DN values in authz{To|From}
+ * attributes.
+ * dn: for backwards compatibility reasons, the value
+ * is treated as a regular expression, and thus
+ * it is not normalized nor validated; it is used
+ * in exact or regex comparisons based on the
+ * context.
+ *
+ * IDs in DNauthzid form can now have a type specifier, that
+ * influences how they are used in related operations.
+ *
+ * syntax: u[.mech[/realm]]:<val>
+ *
+ * where mech is a SIMPLE, AUTHZ, or a SASL mechanism name
+ * and realm is mechanism specific realm (separate to those
+ * which are representable as part of the principal).
+ */
+
+typedef struct sasl_regexp {
+ char *sr_match; /* regexp match pattern */
+ char *sr_replace; /* regexp replace pattern */
+ regex_t sr_workspace; /* workspace for regexp engine */
+ int sr_offset[SASLREGEX_REPLACE+2]; /* offsets of $1,$2... in *replace */
+} SaslRegexp_t;
+
+static int nSaslRegexp = 0;
+static SaslRegexp_t *SaslRegexp = NULL;
+
+#ifdef SLAP_AUTH_REWRITE
+#include "rewrite.h"
+struct rewrite_info *sasl_rwinfo = NULL;
+#define AUTHID_CONTEXT "authid"
+#endif /* SLAP_AUTH_REWRITE */
+
+/* What SASL proxy authorization policies are allowed? */
+#define SASL_AUTHZ_NONE 0x00
+#define SASL_AUTHZ_FROM 0x01
+#define SASL_AUTHZ_TO 0x02
+#define SASL_AUTHZ_AND 0x10
+
+static const char *policy_txt[] = {
+ "none", "from", "to", "any"
+};
+
+static int authz_policy = SASL_AUTHZ_NONE;
+
+static int
+slap_sasl_match( Operation *opx, struct berval *rule,
+ struct berval *assertDN, struct berval *authc );
+
+int slap_sasl_setpolicy( const char *arg )
{
- char *start, *end;
- struct berval bv;
- int rc;
+ int rc = LDAP_SUCCESS;
+
+ if ( strcasecmp( arg, "none" ) == 0 ) {
+ authz_policy = SASL_AUTHZ_NONE;
+ } else if ( strcasecmp( arg, "from" ) == 0 ) {
+ authz_policy = SASL_AUTHZ_FROM;
+ } else if ( strcasecmp( arg, "to" ) == 0 ) {
+ authz_policy = SASL_AUTHZ_TO;
+ } else if ( strcasecmp( arg, "both" ) == 0 || strcasecmp( arg, "any" ) == 0 ) {
+ authz_policy = SASL_AUTHZ_FROM | SASL_AUTHZ_TO;
+ } else if ( strcasecmp( arg, "all" ) == 0 ) {
+ authz_policy = SASL_AUTHZ_FROM | SASL_AUTHZ_TO | SASL_AUTHZ_AND;
+ } else {
+ rc = LDAP_OTHER;
+ }
+ return rc;
+}
+const char * slap_sasl_getpolicy()
+{
+ if ( authz_policy == (SASL_AUTHZ_FROM | SASL_AUTHZ_TO | SASL_AUTHZ_AND) )
+ return "all";
+ else
+ return policy_txt[authz_policy];
+}
- assert( uri != NULL );
- searchbase->bv_val = NULL;
- searchbase->bv_len = 0;
- *scope = -1;
- *filter = NULL;
+int slap_parse_user( struct berval *id, struct berval *user,
+ struct berval *realm, struct berval *mech )
+{
+ char u;
+
+ assert( id != NULL );
+ assert( !BER_BVISNULL( id ) );
+ assert( user != NULL );
+ assert( realm != NULL );
+ assert( mech != NULL );
+
+ u = id->bv_val[ 0 ];
+
+ if ( u != 'u' && u != 'U' ) {
+ /* called with something other than u: */
+ return LDAP_PROTOCOL_ERROR;
+ }
+
+ /* uauthzid form:
+ * u[.mech[/realm]]:user
+ */
+
+ user->bv_val = ber_bvchr( id, ':' );
+ if ( BER_BVISNULL( user ) ) {
+ return LDAP_PROTOCOL_ERROR;
+ }
+ user->bv_val[ 0 ] = '\0';
+ user->bv_val++;
+ user->bv_len = id->bv_len - ( user->bv_val - id->bv_val );
+
+ mech->bv_val = ber_bvchr( id, '.' );
+ if ( !BER_BVISNULL( mech ) ) {
+ mech->bv_val[ 0 ] = '\0';
+ mech->bv_val++;
+ mech->bv_len = user->bv_val - mech->bv_val - 1;
+
+ realm->bv_val = ber_bvchr( mech, '/' );
+
+ if ( !BER_BVISNULL( realm ) ) {
+ realm->bv_val[ 0 ] = '\0';
+ realm->bv_val++;
+ mech->bv_len = realm->bv_val - mech->bv_val - 1;
+ realm->bv_len = user->bv_val - realm->bv_val - 1;
+ }
+
+ } else {
+ BER_BVZERO( realm );
+ }
+
+ if ( id->bv_val[ 1 ] != '\0' ) {
+ return LDAP_PROTOCOL_ERROR;
+ }
+
+ if ( !BER_BVISNULL( mech ) ) {
+ assert( mech->bv_val == id->bv_val + 2 );
+
+ AC_MEMCPY( mech->bv_val - 2, mech->bv_val, mech->bv_len + 1 );
+ mech->bv_val -= 2;
+ }
+
+ if ( !BER_BVISNULL( realm ) ) {
+ assert( realm->bv_val >= id->bv_val + 2 );
+
+ AC_MEMCPY( realm->bv_val - 2, realm->bv_val, realm->bv_len + 1 );
+ realm->bv_val -= 2;
+ }
+
+ /* leave "u:" before user */
+ user->bv_val -= 2;
+ user->bv_len += 2;
+ user->bv_val[ 0 ] = u;
+ user->bv_val[ 1 ] = ':';
+
+ return LDAP_SUCCESS;
+}
+
+#ifdef SLAP_AUTHZ_SYNTAX
+int
+authzValidate(
+ Syntax *syntax,
+ struct berval *in )
+{
+ struct berval bv;
+ int rc = LDAP_INVALID_SYNTAX;
+ LDAPURLDesc *ludp = NULL;
+ int scope = -1;
+
+ /*
+ * 1) <DN>
+ * 2) dn[.{exact|children|subtree|onelevel}]:{*|<DN>}
+ * 3) dn.regex:<pattern>
+ * 4) u[.mech[/realm]]:<ID>
+ * 5) group[/<groupClass>[/<memberAttr>]]:<DN>
+ * 6) <URL>
+ */
+
+ assert( in != NULL );
+ assert( !BER_BVISNULL( in ) );
+
+ Debug( LDAP_DEBUG_TRACE,
+ "authzValidate: parsing %s\n", in->bv_val, 0, 0 );
+
+ /*
+ * 2) dn[.{exact|children|subtree|onelevel}]:{*|<DN>}
+ * 3) dn.regex:<pattern>
+ *
+ * <DN> must pass DN normalization
+ */
+ if ( !strncasecmp( in->bv_val, "dn", STRLENOF( "dn" ) ) ) {
+ bv.bv_val = in->bv_val + STRLENOF( "dn" );
+
+ if ( bv.bv_val[ 0 ] == '.' ) {
+ bv.bv_val++;
+
+ if ( !strncasecmp( bv.bv_val, "exact:", STRLENOF( "exact:" ) ) ) {
+ bv.bv_val += STRLENOF( "exact:" );
+ scope = LDAP_X_SCOPE_EXACT;
+
+ } else if ( !strncasecmp( bv.bv_val, "regex:", STRLENOF( "regex:" ) ) ) {
+ bv.bv_val += STRLENOF( "regex:" );
+ scope = LDAP_X_SCOPE_REGEX;
+
+ } else if ( !strncasecmp( bv.bv_val, "children:", STRLENOF( "children:" ) ) ) {
+ bv.bv_val += STRLENOF( "children:" );
+ scope = LDAP_X_SCOPE_CHILDREN;
+
+ } else if ( !strncasecmp( bv.bv_val, "subtree:", STRLENOF( "subtree:" ) ) ) {
+ bv.bv_val += STRLENOF( "subtree:" );
+ scope = LDAP_X_SCOPE_SUBTREE;
+
+ } else if ( !strncasecmp( bv.bv_val, "onelevel:", STRLENOF( "onelevel:" ) ) ) {
+ bv.bv_val += STRLENOF( "onelevel:" );
+ scope = LDAP_X_SCOPE_ONELEVEL;
+
+ } else {
+ return LDAP_INVALID_SYNTAX;
+ }
+
+ } else {
+ if ( bv.bv_val[ 0 ] != ':' ) {
+ return LDAP_INVALID_SYNTAX;
+ }
+ scope = LDAP_X_SCOPE_EXACT;
+ bv.bv_val++;
+ }
+
+ bv.bv_val += strspn( bv.bv_val, " " );
+ /* jump here in case no type specification was present
+ * and uri was not an URI... HEADS-UP: assuming EXACT */
+is_dn: bv.bv_len = in->bv_len - ( bv.bv_val - in->bv_val );
+
+ /* a single '*' means any DN without using regexes */
+ if ( ber_bvccmp( &bv, '*' ) ) {
+ /* LDAP_X_SCOPE_USERS */
+ return LDAP_SUCCESS;
+ }
+
+ switch ( scope ) {
+ case LDAP_X_SCOPE_EXACT:
+ case LDAP_X_SCOPE_CHILDREN:
+ case LDAP_X_SCOPE_SUBTREE:
+ case LDAP_X_SCOPE_ONELEVEL:
+ return dnValidate( NULL, &bv );
+
+ case LDAP_X_SCOPE_REGEX:
+ return LDAP_SUCCESS;
+ }
+
+ return rc;
+
+ /*
+ * 4) u[.mech[/realm]]:<ID>
+ */
+ } else if ( ( in->bv_val[ 0 ] == 'u' || in->bv_val[ 0 ] == 'U' )
+ && ( in->bv_val[ 1 ] == ':'
+ || in->bv_val[ 1 ] == '/'
+ || in->bv_val[ 1 ] == '.' ) )
+ {
+ char buf[ SLAP_LDAPDN_MAXLEN ];
+ struct berval id,
+ user = BER_BVNULL,
+ realm = BER_BVNULL,
+ mech = BER_BVNULL;
+
+ if ( sizeof( buf ) <= in->bv_len ) {
+ return LDAP_INVALID_SYNTAX;
+ }
+
+ id.bv_len = in->bv_len;
+ id.bv_val = buf;
+ strncpy( buf, in->bv_val, sizeof( buf ) );
+
+ rc = slap_parse_user( &id, &user, &realm, &mech );
+ if ( rc != LDAP_SUCCESS ) {
+ return LDAP_INVALID_SYNTAX;
+ }
+
+ return rc;
+
+ /*
+ * 5) group[/groupClass[/memberAttr]]:<DN>
+ *
+ * <groupClass> defaults to "groupOfNames"
+ * <memberAttr> defaults to "member"
+ *
+ * <DN> must pass DN normalization
+ */
+ } else if ( strncasecmp( in->bv_val, "group", STRLENOF( "group" ) ) == 0 )
+ {
+ struct berval group_dn = BER_BVNULL,
+ group_oc = BER_BVNULL,
+ member_at = BER_BVNULL;
+
+ bv.bv_val = in->bv_val + STRLENOF( "group" );
+ bv.bv_len = in->bv_len - STRLENOF( "group" );
+ group_dn.bv_val = ber_bvchr( &bv, ':' );
+ if ( group_dn.bv_val == NULL ) {
+ /* last chance: assume it's a(n exact) DN ... */
+ bv.bv_val = in->bv_val;
+ scope = LDAP_X_SCOPE_EXACT;
+ goto is_dn;
+ }
+
+ /*
+ * FIXME: we assume that "member" and "groupOfNames"
+ * are present in schema...
+ */
+ if ( bv.bv_val[ 0 ] == '/' ) {
+ group_oc.bv_val = &bv.bv_val[ 1 ];
+ group_oc.bv_len = group_dn.bv_val - group_oc.bv_val;
+
+ member_at.bv_val = ber_bvchr( &group_oc, '/' );
+ if ( member_at.bv_val ) {
+ AttributeDescription *ad = NULL;
+ const char *text = NULL;
+
+ group_oc.bv_len = member_at.bv_val - group_oc.bv_val;
+ member_at.bv_val++;
+ member_at.bv_len = group_dn.bv_val - member_at.bv_val;
+ rc = slap_bv2ad( &member_at, &ad, &text );
+ if ( rc != LDAP_SUCCESS ) {
+ return rc;
+ }
+ }
+
+ if ( oc_bvfind( &group_oc ) == NULL ) {
+ return LDAP_INVALID_SYNTAX;
+ }
+ }
+
+ group_dn.bv_val++;
+ group_dn.bv_len = in->bv_len - ( group_dn.bv_val - in->bv_val );
+
+ rc = dnValidate( NULL, &group_dn );
+ if ( rc != LDAP_SUCCESS ) {
+ return rc;
+ }
+
+ return rc;
+ }
+
+ /*
+ * ldap:///<base>??<scope>?<filter>
+ * <scope> ::= {base|one|subtree}
+ *
+ * <scope> defaults to "base"
+ * <base> must pass DN normalization
+ * <filter> must pass str2filter()
+ */
+ rc = ldap_url_parse( in->bv_val, &ludp );
+ switch ( rc ) {
+ case LDAP_URL_SUCCESS:
+ /* FIXME: the check is pedantic, but I think it's necessary,
+ * because people tend to use things like ldaps:// which
+ * gives the idea SSL is being used. Maybe we could
+ * accept ldapi:// as well, but the point is that we use
+ * an URL as an easy means to define bits of a search with
+ * little parsing.
+ */
+ if ( strcasecmp( ludp->lud_scheme, "ldap" ) != 0 ) {
+ /*
+ * must be ldap:///
+ */
+ rc = LDAP_INVALID_SYNTAX;
+ goto done;
+ }
+ break;
+
+ case LDAP_URL_ERR_BADSCHEME:
+ /*
+ * last chance: assume it's a(n exact) DN ...
+ *
+ * NOTE: must pass DN normalization
+ */
+ ldap_free_urldesc( ludp );
+ bv.bv_val = in->bv_val;
+ scope = LDAP_X_SCOPE_EXACT;
+ goto is_dn;
+
+ default:
+ rc = LDAP_INVALID_SYNTAX;
+ goto done;
+ }
+
+ if ( ( ludp->lud_host && *ludp->lud_host )
+ || ludp->lud_attrs || ludp->lud_exts )
+ {
+ /* host part must be empty */
+ /* attrs and extensions parts must be empty */
+ rc = LDAP_INVALID_SYNTAX;
+ goto done;
+ }
+
+ /* Grab the filter */
+ if ( ludp->lud_filter ) {
+ Filter *f = str2filter( ludp->lud_filter );
+ if ( f == NULL ) {
+ rc = LDAP_INVALID_SYNTAX;
+ goto done;
+ }
+ filter_free( f );
+ }
-#ifdef NEW_LOGGING
- LDAP_LOG(( "sasl", LDAP_LEVEL_ENTRY,
- "slap_parseURI: parsing %s\n", uri ));
-#else
- Debug( LDAP_DEBUG_TRACE, "slap_parseURI: parsing %s\n", uri, 0, 0 );
+ /* Grab the searchbase */
+ assert( ludp->lud_dn != NULL );
+ ber_str2bv( ludp->lud_dn, 0, 0, &bv );
+ rc = dnValidate( NULL, &bv );
+
+done:
+ ldap_free_urldesc( ludp );
+ return( rc );
+}
+
+#if 0
+int
+authzMatch(
+ int *matchp,
+ slap_mask_t flags,
+ Syntax *syntax,
+ MatchingRule *mr,
+ struct berval *value,
+ void *assertedValue )
+{
+ return octetStringMatch( matchp, flags, syntax, mr, value, assertedValue );
+}
#endif
- /* If it does not look like a URI, assume it is a DN */
- if( !strncasecmp( uri, "dn:", sizeof("dn:")-1 ) ) {
- uri += sizeof("dn:")-1;
- uri += strspn( uri, " " );
- bv.bv_val = uri;
- /* FIXME: if dnNormalize actually uses input bv_len we
- * will have to make this right.
+static int
+authzPrettyNormal(
+ struct berval *val,
+ struct berval *normalized,
+ void *ctx,
+ int normalize )
+{
+ struct berval bv;
+ int rc = LDAP_INVALID_SYNTAX;
+ LDAPURLDesc *ludp = NULL;
+ char *lud_dn = NULL,
+ *lud_filter = NULL;
+ int scope = -1;
+
+ /*
+ * 1) <DN>
+ * 2) dn[.{exact|children|subtree|onelevel}]:{*|<DN>}
+ * 3) dn.regex:<pattern>
+ * 4) u[.mech[/realm]]:<ID>
+ * 5) group[/<groupClass>[/<memberAttr>]]:<DN>
+ * 6) <URL>
+ */
+
+ assert( val != NULL );
+ assert( !BER_BVISNULL( val ) );
+
+ /*
+ * 2) dn[.{exact|children|subtree|onelevel}]:{*|<DN>}
+ * 3) dn.regex:<pattern>
+ *
+ * <DN> must pass DN normalization
+ */
+ if ( !strncasecmp( val->bv_val, "dn", STRLENOF( "dn" ) ) ) {
+ struct berval out = BER_BVNULL,
+ prefix = BER_BVNULL;
+ char *ptr;
+
+ bv.bv_val = val->bv_val + STRLENOF( "dn" );
+
+ if ( bv.bv_val[ 0 ] == '.' ) {
+ bv.bv_val++;
+
+ if ( !strncasecmp( bv.bv_val, "exact:", STRLENOF( "exact:" ) ) ) {
+ bv.bv_val += STRLENOF( "exact:" );
+ scope = LDAP_X_SCOPE_EXACT;
+
+ } else if ( !strncasecmp( bv.bv_val, "regex:", STRLENOF( "regex:" ) ) ) {
+ bv.bv_val += STRLENOF( "regex:" );
+ scope = LDAP_X_SCOPE_REGEX;
+
+ } else if ( !strncasecmp( bv.bv_val, "children:", STRLENOF( "children:" ) ) ) {
+ bv.bv_val += STRLENOF( "children:" );
+ scope = LDAP_X_SCOPE_CHILDREN;
+
+ } else if ( !strncasecmp( bv.bv_val, "subtree:", STRLENOF( "subtree:" ) ) ) {
+ bv.bv_val += STRLENOF( "subtree:" );
+ scope = LDAP_X_SCOPE_SUBTREE;
+
+ } else if ( !strncasecmp( bv.bv_val, "onelevel:", STRLENOF( "onelevel:" ) ) ) {
+ bv.bv_val += STRLENOF( "onelevel:" );
+ scope = LDAP_X_SCOPE_ONELEVEL;
+
+ } else {
+ return LDAP_INVALID_SYNTAX;
+ }
+
+ } else {
+ if ( bv.bv_val[ 0 ] != ':' ) {
+ return LDAP_INVALID_SYNTAX;
+ }
+ scope = LDAP_X_SCOPE_EXACT;
+ bv.bv_val++;
+ }
+
+ bv.bv_val += strspn( bv.bv_val, " " );
+ /* jump here in case no type specification was present
+ * and uri was not an URI... HEADS-UP: assuming EXACT */
+is_dn: bv.bv_len = val->bv_len - ( bv.bv_val - val->bv_val );
+
+ /* a single '*' means any DN without using regexes */
+ if ( ber_bvccmp( &bv, '*' ) ) {
+ ber_str2bv_x( "dn:*", STRLENOF( "dn:*" ), 1, normalized, ctx );
+ return LDAP_SUCCESS;
+ }
+
+ switch ( scope ) {
+ case LDAP_X_SCOPE_EXACT:
+ case LDAP_X_SCOPE_CHILDREN:
+ case LDAP_X_SCOPE_SUBTREE:
+ case LDAP_X_SCOPE_ONELEVEL:
+ if ( normalize ) {
+ rc = dnNormalize( 0, NULL, NULL, &bv, &out, ctx );
+ } else {
+ rc = dnPretty( NULL, &bv, &out, ctx );
+ }
+ if( rc != LDAP_SUCCESS ) {
+ return LDAP_INVALID_SYNTAX;
+ }
+ break;
+
+ case LDAP_X_SCOPE_REGEX:
+ normalized->bv_len = STRLENOF( "dn.regex:" ) + bv.bv_len;
+ normalized->bv_val = ber_memalloc_x( normalized->bv_len + 1, ctx );
+ ptr = lutil_strcopy( normalized->bv_val, "dn.regex:" );
+ ptr = lutil_strncopy( ptr, bv.bv_val, bv.bv_len );
+ ptr[ 0 ] = '\0';
+ return LDAP_SUCCESS;
+
+ default:
+ return LDAP_INVALID_SYNTAX;
+ }
+
+ /* prepare prefix */
+ switch ( scope ) {
+ case LDAP_X_SCOPE_EXACT:
+ BER_BVSTR( &prefix, "dn:" );
+ break;
+
+ case LDAP_X_SCOPE_CHILDREN:
+ BER_BVSTR( &prefix, "dn.children:" );
+ break;
+
+ case LDAP_X_SCOPE_SUBTREE:
+ BER_BVSTR( &prefix, "dn.subtree:" );
+ break;
+
+ case LDAP_X_SCOPE_ONELEVEL:
+ BER_BVSTR( &prefix, "dn.onelevel:" );
+ break;
+
+ default:
+ assert( 0 );
+ break;
+ }
+
+ normalized->bv_len = prefix.bv_len + out.bv_len;
+ normalized->bv_val = ber_memalloc_x( normalized->bv_len + 1, ctx );
+
+ ptr = lutil_strcopy( normalized->bv_val, prefix.bv_val );
+ ptr = lutil_strncopy( ptr, out.bv_val, out.bv_len );
+ ptr[ 0 ] = '\0';
+ ber_memfree_x( out.bv_val, ctx );
+
+ return LDAP_SUCCESS;
+
+ /*
+ * 4) u[.mech[/realm]]:<ID>
+ */
+ } else if ( ( val->bv_val[ 0 ] == 'u' || val->bv_val[ 0 ] == 'U' )
+ && ( val->bv_val[ 1 ] == ':'
+ || val->bv_val[ 1 ] == '/'
+ || val->bv_val[ 1 ] == '.' ) )
+ {
+ char buf[ SLAP_LDAPDN_MAXLEN ];
+ struct berval id,
+ user = BER_BVNULL,
+ realm = BER_BVNULL,
+ mech = BER_BVNULL;
+
+ if ( sizeof( buf ) <= val->bv_len ) {
+ return LDAP_INVALID_SYNTAX;
+ }
+
+ id.bv_len = val->bv_len;
+ id.bv_val = buf;
+ strncpy( buf, val->bv_val, sizeof( buf ) );
+
+ rc = slap_parse_user( &id, &user, &realm, &mech );
+ if ( rc != LDAP_SUCCESS ) {
+ return LDAP_INVALID_SYNTAX;
+ }
+
+ ber_dupbv_x( normalized, val, ctx );
+
+ return rc;
+
+ /*
+ * 5) group[/groupClass[/memberAttr]]:<DN>
+ *
+ * <groupClass> defaults to "groupOfNames"
+ * <memberAttr> defaults to "member"
+ *
+ * <DN> must pass DN normalization
+ */
+ } else if ( strncasecmp( val->bv_val, "group", STRLENOF( "group" ) ) == 0 )
+ {
+ struct berval group_dn = BER_BVNULL,
+ group_oc = BER_BVNULL,
+ member_at = BER_BVNULL,
+ out = BER_BVNULL;
+ char *ptr;
+
+ bv.bv_val = val->bv_val + STRLENOF( "group" );
+ bv.bv_len = val->bv_len - STRLENOF( "group" );
+ group_dn.bv_val = ber_bvchr( &bv, ':' );
+ if ( group_dn.bv_val == NULL ) {
+ /* last chance: assume it's a(n exact) DN ... */
+ bv.bv_val = val->bv_val;
+ scope = LDAP_X_SCOPE_EXACT;
+ goto is_dn;
+ }
+
+ /*
+ * FIXME: we assume that "member" and "groupOfNames"
+ * are present in schema...
*/
-is_dn: bv.bv_len = 1;
- rc = dnNormalize2( NULL, &bv, searchbase );
- if (rc == LDAP_SUCCESS) {
- *scope = LDAP_SCOPE_BASE;
+ if ( bv.bv_val[ 0 ] == '/' ) {
+ ObjectClass *oc = NULL;
+
+ group_oc.bv_val = &bv.bv_val[ 1 ];
+ group_oc.bv_len = group_dn.bv_val - group_oc.bv_val;
+
+ member_at.bv_val = ber_bvchr( &group_oc, '/' );
+ if ( member_at.bv_val ) {
+ AttributeDescription *ad = NULL;
+ const char *text = NULL;
+
+ group_oc.bv_len = member_at.bv_val - group_oc.bv_val;
+ member_at.bv_val++;
+ member_at.bv_len = group_dn.bv_val - member_at.bv_val;
+ rc = slap_bv2ad( &member_at, &ad, &text );
+ if ( rc != LDAP_SUCCESS ) {
+ return rc;
+ }
+
+ member_at = ad->ad_cname;
+
+ }
+
+ oc = oc_bvfind( &group_oc );
+ if ( oc == NULL ) {
+ return LDAP_INVALID_SYNTAX;
+ }
+
+ group_oc = oc->soc_cname;
}
- return( rc );
+
+ group_dn.bv_val++;
+ group_dn.bv_len = val->bv_len - ( group_dn.bv_val - val->bv_val );
+
+ if ( normalize ) {
+ rc = dnNormalize( 0, NULL, NULL, &group_dn, &out, ctx );
+ } else {
+ rc = dnPretty( NULL, &group_dn, &out, ctx );
+ }
+ if ( rc != LDAP_SUCCESS ) {
+ return rc;
+ }
+
+ normalized->bv_len = STRLENOF( "group" ":" ) + out.bv_len;
+ if ( !BER_BVISNULL( &group_oc ) ) {
+ normalized->bv_len += STRLENOF( "/" ) + group_oc.bv_len;
+ if ( !BER_BVISNULL( &member_at ) ) {
+ normalized->bv_len += STRLENOF( "/" ) + member_at.bv_len;
+ }
+ }
+
+ normalized->bv_val = ber_memalloc_x( normalized->bv_len + 1, ctx );
+ ptr = lutil_strcopy( normalized->bv_val, "group" );
+ if ( !BER_BVISNULL( &group_oc ) ) {
+ ptr[ 0 ] = '/';
+ ptr++;
+ ptr = lutil_strncopy( ptr, group_oc.bv_val, group_oc.bv_len );
+ if ( !BER_BVISNULL( &member_at ) ) {
+ ptr[ 0 ] = '/';
+ ptr++;
+ ptr = lutil_strncopy( ptr, member_at.bv_val, member_at.bv_len );
+ }
+ }
+ ptr[ 0 ] = ':';
+ ptr++;
+ ptr = lutil_strncopy( ptr, out.bv_val, out.bv_len );
+ ptr[ 0 ] = '\0';
+ ber_memfree_x( out.bv_val, ctx );
+
+ return rc;
}
- /* FIXME: should use ldap_url_parse() */
- if( strncasecmp( uri, "ldap://", sizeof("ldap://")-1 ) ) {
- bv.bv_val = uri;
+ /*
+ * ldap:///<base>??<scope>?<filter>
+ * <scope> ::= {base|one|subtree}
+ *
+ * <scope> defaults to "base"
+ * <base> must pass DN normalization
+ * <filter> must pass str2filter()
+ */
+ rc = ldap_url_parse( val->bv_val, &ludp );
+ switch ( rc ) {
+ case LDAP_URL_SUCCESS:
+ /* FIXME: the check is pedantic, but I think it's necessary,
+ * because people tend to use things like ldaps:// which
+ * gives the idea SSL is being used. Maybe we could
+ * accept ldapi:// as well, but the point is that we use
+ * an URL as an easy means to define bits of a search with
+ * little parsing.
+ */
+ if ( strcasecmp( ludp->lud_scheme, "ldap" ) != 0 ) {
+ /*
+ * must be ldap:///
+ */
+ rc = LDAP_INVALID_SYNTAX;
+ goto done;
+ }
+
+ AC_MEMCPY( ludp->lud_scheme, "ldap", STRLENOF( "ldap" ) );
+ break;
+
+ case LDAP_URL_ERR_BADSCHEME:
+ /*
+ * last chance: assume it's a(n exact) DN ...
+ *
+ * NOTE: must pass DN normalization
+ */
+ ldap_free_urldesc( ludp );
+ bv.bv_val = val->bv_val;
+ scope = LDAP_X_SCOPE_EXACT;
goto is_dn;
+
+ default:
+ rc = LDAP_INVALID_SYNTAX;
+ goto done;
+ }
+
+ if ( ( ludp->lud_host && *ludp->lud_host )
+ || ludp->lud_attrs || ludp->lud_exts )
+ {
+ /* host part must be empty */
+ /* attrs and extensions parts must be empty */
+ rc = LDAP_INVALID_SYNTAX;
+ goto done;
}
- end = strchr( uri + (sizeof("ldap://")-1), '/' );
- if ( end == NULL )
- return( LDAP_PROTOCOL_ERROR );
+ /* Grab the filter */
+ if ( ludp->lud_filter ) {
+ struct berval filterstr;
+ Filter *f;
- /* could check the hostname here */
+ lud_filter = ludp->lud_filter;
+
+ f = str2filter( lud_filter );
+ if ( f == NULL ) {
+ rc = LDAP_INVALID_SYNTAX;
+ goto done;
+ }
+ filter2bv( f, &filterstr );
+ filter_free( f );
+ if ( BER_BVISNULL( &filterstr ) ) {
+ rc = LDAP_INVALID_SYNTAX;
+ goto done;
+ }
+
+ ludp->lud_filter = filterstr.bv_val;
+ }
/* Grab the searchbase */
- start = end+1;
- end = strchr( start, '?' );
- bv.bv_val = start;
- if( end == NULL ) {
- bv.bv_len = 1;
- return dnNormalize2( NULL, &bv, searchbase );
- }
- *end = '\0';
- bv.bv_len = end - start;
- rc = dnNormalize2( NULL, &bv, searchbase );
- *end = '?';
- if (rc != LDAP_SUCCESS)
- return( rc );
-
- /* Skip the attrs */
- start = end+1;
- end = strchr( start, '?' );
- if( end == NULL ) {
- return( LDAP_SUCCESS );
+ assert( ludp->lud_dn != NULL );
+ if ( ludp->lud_dn ) {
+ struct berval out = BER_BVNULL;
+
+ lud_dn = ludp->lud_dn;
+
+ ber_str2bv( lud_dn, 0, 0, &bv );
+ if ( normalize ) {
+ rc = dnNormalize( 0, NULL, NULL, &bv, &out, ctx );
+ } else {
+ rc = dnPretty( NULL, &bv, &out, ctx );
+ }
+
+ if ( rc != LDAP_SUCCESS ) {
+ goto done;
+ }
+
+ ludp->lud_dn = out.bv_val;
+ }
+
+ ludp->lud_port = 0;
+ normalized->bv_val = ldap_url_desc2str( ludp );
+ if ( normalized->bv_val ) {
+ normalized->bv_len = strlen( normalized->bv_val );
+
+ } else {
+ rc = LDAP_INVALID_SYNTAX;
+ }
+
+done:
+ if ( lud_filter ) {
+ if ( ludp->lud_filter != lud_filter ) {
+ ber_memfree( ludp->lud_filter );
+ }
+ ludp->lud_filter = lud_filter;
+ }
+
+ if ( lud_dn ) {
+ if ( ludp->lud_dn != lud_dn ) {
+ ber_memfree( ludp->lud_dn );
+ }
+ ludp->lud_dn = lud_dn;
+ }
+
+ ldap_free_urldesc( ludp );
+
+ return( rc );
+}
+
+int
+authzNormalize(
+ slap_mask_t usage,
+ Syntax *syntax,
+ MatchingRule *mr,
+ struct berval *val,
+ struct berval *normalized,
+ void *ctx )
+{
+ int rc;
+
+ Debug( LDAP_DEBUG_TRACE, ">>> authzNormalize: <%s>\n",
+ val->bv_val, 0, 0 );
+
+ rc = authzPrettyNormal( val, normalized, ctx, 1 );
+
+ Debug( LDAP_DEBUG_TRACE, "<<< authzNormalize: <%s> (%d)\n",
+ normalized->bv_val, rc, 0 );
+
+ return rc;
+}
+
+int
+authzPretty(
+ Syntax *syntax,
+ struct berval *val,
+ struct berval *out,
+ void *ctx)
+{
+ int rc;
+
+ Debug( LDAP_DEBUG_TRACE, ">>> authzPretty: <%s>\n",
+ val->bv_val, 0, 0 );
+
+ rc = authzPrettyNormal( val, out, ctx, 0 );
+
+ Debug( LDAP_DEBUG_TRACE, "<<< authzPretty: <%s> (%d)\n",
+ out->bv_val, rc, 0 );
+
+ return rc;
+}
+
+#endif /* SLAP_AUTHZ_SYNTAX */
+
+static int
+slap_parseURI(
+ Operation *op,
+ struct berval *uri,
+ struct berval *base,
+ struct berval *nbase,
+ int *scope,
+ Filter **filter,
+ struct berval *fstr,
+ int normalize )
+{
+ struct berval bv;
+ int rc;
+ LDAPURLDesc *ludp;
+
+#ifdef SLAP_ORDERED_PRETTYNORM
+ struct berval idx;
+#endif /* SLAP_ORDERED_PRETTYNORM */
+
+ assert( uri != NULL && !BER_BVISNULL( uri ) );
+ BER_BVZERO( base );
+ BER_BVZERO( nbase );
+ BER_BVZERO( fstr );
+ *scope = -1;
+ *filter = NULL;
+
+ Debug( LDAP_DEBUG_TRACE,
+ "slap_parseURI: parsing %s\n", uri->bv_val, 0, 0 );
+
+ rc = LDAP_PROTOCOL_ERROR;
+
+#ifdef SLAP_ORDERED_PRETTYNORM
+ idx = *uri;
+ if ( idx.bv_val[ 0 ] == '{' ) {
+ char *ptr;
+
+ ptr = ber_bvchr( &idx, '}' ) + 1;
+
+ assert( ptr != (void *)1 );
+
+ idx.bv_len -= ptr - idx.bv_val;
+ idx.bv_val = ptr;
+ uri = &idx;
+ }
+#endif /* SLAP_ORDERED_PRETTYNORM */
+
+ /*
+ * dn[.<dnstyle>]:<dnpattern>
+ * <dnstyle> ::= {exact|regex|children|subtree|onelevel}
+ *
+ * <dnstyle> defaults to "exact"
+ * if <dnstyle> is not "regex", <dnpattern> must pass DN normalization
+ */
+ if ( !strncasecmp( uri->bv_val, "dn", STRLENOF( "dn" ) ) ) {
+ bv.bv_val = uri->bv_val + STRLENOF( "dn" );
+
+ if ( bv.bv_val[ 0 ] == '.' ) {
+ bv.bv_val++;
+
+ if ( !strncasecmp( bv.bv_val, "exact:", STRLENOF( "exact:" ) ) ) {
+ bv.bv_val += STRLENOF( "exact:" );
+ *scope = LDAP_X_SCOPE_EXACT;
+
+ } else if ( !strncasecmp( bv.bv_val, "regex:", STRLENOF( "regex:" ) ) ) {
+ bv.bv_val += STRLENOF( "regex:" );
+ *scope = LDAP_X_SCOPE_REGEX;
+
+ } else if ( !strncasecmp( bv.bv_val, "children:", STRLENOF( "children:" ) ) ) {
+ bv.bv_val += STRLENOF( "children:" );
+ *scope = LDAP_X_SCOPE_CHILDREN;
+
+ } else if ( !strncasecmp( bv.bv_val, "subtree:", STRLENOF( "subtree:" ) ) ) {
+ bv.bv_val += STRLENOF( "subtree:" );
+ *scope = LDAP_X_SCOPE_SUBTREE;
+
+ } else if ( !strncasecmp( bv.bv_val, "onelevel:", STRLENOF( "onelevel:" ) ) ) {
+ bv.bv_val += STRLENOF( "onelevel:" );
+ *scope = LDAP_X_SCOPE_ONELEVEL;
+
+ } else {
+ return LDAP_PROTOCOL_ERROR;
+ }
+
+ } else {
+ if ( bv.bv_val[ 0 ] != ':' ) {
+ return LDAP_PROTOCOL_ERROR;
+ }
+ *scope = LDAP_X_SCOPE_EXACT;
+ bv.bv_val++;
+ }
+
+ bv.bv_val += strspn( bv.bv_val, " " );
+ /* jump here in case no type specification was present
+ * and uri was not an URI... HEADS-UP: assuming EXACT */
+is_dn: bv.bv_len = uri->bv_len - (bv.bv_val - uri->bv_val);
+
+ /* a single '*' means any DN without using regexes */
+ if ( ber_bvccmp( &bv, '*' ) ) {
+ *scope = LDAP_X_SCOPE_USERS;
+ }
+
+ switch ( *scope ) {
+ case LDAP_X_SCOPE_EXACT:
+ case LDAP_X_SCOPE_CHILDREN:
+ case LDAP_X_SCOPE_SUBTREE:
+ case LDAP_X_SCOPE_ONELEVEL:
+ if ( normalize ) {
+ rc = dnNormalize( 0, NULL, NULL, &bv, nbase, op->o_tmpmemctx );
+ if( rc != LDAP_SUCCESS ) {
+ *scope = -1;
+ }
+ } else {
+ ber_dupbv_x( nbase, &bv, op->o_tmpmemctx );
+ rc = LDAP_SUCCESS;
+ }
+ break;
+
+ case LDAP_X_SCOPE_REGEX:
+ ber_dupbv_x( nbase, &bv, op->o_tmpmemctx );
+
+ case LDAP_X_SCOPE_USERS:
+ rc = LDAP_SUCCESS;
+ break;
+
+ default:
+ *scope = -1;
+ break;
+ }
+
+ return rc;
+
+ /*
+ * u:<uid>
+ */
+ } else if ( ( uri->bv_val[ 0 ] == 'u' || uri->bv_val[ 0 ] == 'U' )
+ && ( uri->bv_val[ 1 ] == ':'
+ || uri->bv_val[ 1 ] == '/'
+ || uri->bv_val[ 1 ] == '.' ) )
+ {
+ Connection c = *op->o_conn;
+ char buf[ SLAP_LDAPDN_MAXLEN ];
+ struct berval id,
+ user = BER_BVNULL,
+ realm = BER_BVNULL,
+ mech = BER_BVNULL;
+
+ if ( sizeof( buf ) <= uri->bv_len ) {
+ return LDAP_INVALID_SYNTAX;
+ }
+
+ id.bv_len = uri->bv_len;
+ id.bv_val = buf;
+ strncpy( buf, uri->bv_val, sizeof( buf ) );
+
+ rc = slap_parse_user( &id, &user, &realm, &mech );
+ if ( rc != LDAP_SUCCESS ) {
+ return rc;
+ }
+
+ if ( !BER_BVISNULL( &mech ) ) {
+ c.c_sasl_bind_mech = mech;
+ } else {
+ BER_BVSTR( &c.c_sasl_bind_mech, "AUTHZ" );
+ }
+
+ rc = slap_sasl_getdn( &c, op, &user,
+ realm.bv_val, nbase, SLAP_GETDN_AUTHZID );
+
+ if ( rc == LDAP_SUCCESS ) {
+ *scope = LDAP_X_SCOPE_EXACT;
+ }
+
+ return rc;
+
+ /*
+ * group[/<groupoc>[/<groupat>]]:<groupdn>
+ *
+ * groupoc defaults to "groupOfNames"
+ * groupat defaults to "member"
+ *
+ * <groupdn> must pass DN normalization
+ */
+ } else if ( strncasecmp( uri->bv_val, "group", STRLENOF( "group" ) ) == 0 )
+ {
+ struct berval group_dn = BER_BVNULL,
+ group_oc = BER_BVNULL,
+ member_at = BER_BVNULL;
+ char *tmp;
+
+ bv.bv_val = uri->bv_val + STRLENOF( "group" );
+ bv.bv_len = uri->bv_len - STRLENOF( "group" );
+ group_dn.bv_val = ber_bvchr( &bv, ':' );
+ if ( group_dn.bv_val == NULL ) {
+ /* last chance: assume it's a(n exact) DN ... */
+ bv.bv_val = uri->bv_val;
+ *scope = LDAP_X_SCOPE_EXACT;
+ goto is_dn;
+ }
+
+ if ( bv.bv_val[ 0 ] == '/' ) {
+ group_oc.bv_val = &bv.bv_val[ 1 ];
+ group_oc.bv_len = group_dn.bv_val - group_oc.bv_val;
+
+ member_at.bv_val = ber_bvchr( &group_oc, '/' );
+ if ( member_at.bv_val ) {
+ group_oc.bv_len = member_at.bv_val - group_oc.bv_val;
+ member_at.bv_val++;
+ member_at.bv_len = group_dn.bv_val - member_at.bv_val;
+
+ } else {
+ BER_BVSTR( &member_at, SLAPD_GROUP_ATTR );
+ }
+
+ } else {
+ BER_BVSTR( &group_oc, SLAPD_GROUP_CLASS );
+ BER_BVSTR( &member_at, SLAPD_GROUP_ATTR );
+ }
+ group_dn.bv_val++;
+ group_dn.bv_len = uri->bv_len - ( group_dn.bv_val - uri->bv_val );
+
+ if ( normalize ) {
+ rc = dnNormalize( 0, NULL, NULL, &group_dn, nbase, op->o_tmpmemctx );
+ if ( rc != LDAP_SUCCESS ) {
+ *scope = -1;
+ return rc;
+ }
+ } else {
+ ber_dupbv_x( nbase, &group_dn, op->o_tmpmemctx );
+ rc = LDAP_SUCCESS;
+ }
+ *scope = LDAP_X_SCOPE_GROUP;
+
+ /* FIXME: caller needs to add value of member attribute
+ * and close brackets twice */
+ fstr->bv_len = STRLENOF( "(&(objectClass=)(=" /* )) */ )
+ + group_oc.bv_len + member_at.bv_len;
+ fstr->bv_val = ch_malloc( fstr->bv_len + 1 );
+
+ tmp = lutil_strncopy( fstr->bv_val, "(&(objectClass=" /* )) */ ,
+ STRLENOF( "(&(objectClass=" /* )) */ ) );
+ tmp = lutil_strncopy( tmp, group_oc.bv_val, group_oc.bv_len );
+ tmp = lutil_strncopy( tmp, /* ( */ ")(" /* ) */ ,
+ STRLENOF( /* ( */ ")(" /* ) */ ) );
+ tmp = lutil_strncopy( tmp, member_at.bv_val, member_at.bv_len );
+ tmp = lutil_strncopy( tmp, "=", STRLENOF( "=" ) );
+
+ return rc;
+ }
+
+ /*
+ * ldap:///<base>??<scope>?<filter>
+ * <scope> ::= {base|one|subtree}
+ *
+ * <scope> defaults to "base"
+ * <base> must pass DN normalization
+ * <filter> must pass str2filter()
+ */
+ rc = ldap_url_parse( uri->bv_val, &ludp );
+ switch ( rc ) {
+ case LDAP_URL_SUCCESS:
+ /* FIXME: the check is pedantic, but I think it's necessary,
+ * because people tend to use things like ldaps:// which
+ * gives the idea SSL is being used. Maybe we could
+ * accept ldapi:// as well, but the point is that we use
+ * an URL as an easy means to define bits of a search with
+ * little parsing.
+ */
+ if ( strcasecmp( ludp->lud_scheme, "ldap" ) != 0 ) {
+ /*
+ * must be ldap:///
+ */
+ rc = LDAP_PROTOCOL_ERROR;
+ goto done;
+ }
+ break;
+
+ case LDAP_URL_ERR_BADSCHEME:
+ /*
+ * last chance: assume it's a(n exact) DN ...
+ *
+ * NOTE: must pass DN normalization
+ */
+ ldap_free_urldesc( ludp );
+ bv.bv_val = uri->bv_val;
+ *scope = LDAP_X_SCOPE_EXACT;
+ goto is_dn;
+
+ default:
+ rc = LDAP_PROTOCOL_ERROR;
+ goto done;
+ }
+
+ if ( ( ludp->lud_host && *ludp->lud_host )
+ || ludp->lud_attrs || ludp->lud_exts )
+ {
+ /* host part must be empty */
+ /* attrs and extensions parts must be empty */
+ rc = LDAP_PROTOCOL_ERROR;
+ goto done;
}
/* Grab the scope */
- start = end+1;
- if( !strncasecmp( start, "base?", sizeof("base?")-1 )) {
- *scope = LDAP_SCOPE_BASE;
- start += sizeof("base?")-1;
+ *scope = ludp->lud_scope;
+
+ /* Grab the filter */
+ if ( ludp->lud_filter ) {
+ *filter = str2filter_x( op, ludp->lud_filter );
+ if ( *filter == NULL ) {
+ rc = LDAP_PROTOCOL_ERROR;
+ goto done;
+ }
+ ber_str2bv( ludp->lud_filter, 0, 0, fstr );
+ }
+
+ /* Grab the searchbase */
+ ber_str2bv( ludp->lud_dn, 0, 0, base );
+ if ( normalize ) {
+ rc = dnNormalize( 0, NULL, NULL, base, nbase, op->o_tmpmemctx );
+ } else {
+ ber_dupbv_x( nbase, base, op->o_tmpmemctx );
+ rc = LDAP_SUCCESS;
+ }
+
+done:
+ if( rc != LDAP_SUCCESS ) {
+ if( *filter ) filter_free_x( op, *filter );
+ BER_BVZERO( base );
+ BER_BVZERO( fstr );
+ } else {
+ /* Don't free these, return them to caller */
+ ludp->lud_filter = NULL;
+ ludp->lud_dn = NULL;
+ }
+
+ ldap_free_urldesc( ludp );
+ return( rc );
+}
+
+#ifndef SLAP_AUTH_REWRITE
+static int slap_sasl_rx_off(char *rep, int *off)
+{
+ const char *c;
+ int n;
+
+ /* Precompile replace pattern. Find the $<n> placeholders */
+ off[0] = -2;
+ n = 1;
+ for ( c = rep; *c; c++ ) {
+ if ( *c == '\\' && c[1] ) {
+ c++;
+ continue;
+ }
+ if ( *c == '$' ) {
+ if ( n == SASLREGEX_REPLACE ) {
+ Debug( LDAP_DEBUG_ANY,
+ "SASL replace pattern %s has too many $n "
+ "placeholders (max %d)\n",
+ rep, SASLREGEX_REPLACE, 0 );
+
+ return( LDAP_OTHER );
+ }
+ off[n] = c - rep;
+ n++;
+ }
}
- else if( !strncasecmp( start, "one?", sizeof("one?")-1 )) {
- *scope = LDAP_SCOPE_ONELEVEL;
- start += sizeof("one?")-1;
+
+ /* Final placeholder, after the last $n */
+ off[n] = c - rep;
+ n++;
+ off[n] = -1;
+ return( LDAP_SUCCESS );
+}
+#endif /* ! SLAP_AUTH_REWRITE */
+
+#ifdef SLAP_AUTH_REWRITE
+int slap_sasl_rewrite_config(
+ const char *fname,
+ int lineno,
+ int argc,
+ char **argv
+)
+{
+ int rc;
+ char *savearg0;
+
+ /* init at first call */
+ if ( sasl_rwinfo == NULL ) {
+ sasl_rwinfo = rewrite_info_init( REWRITE_MODE_USE_DEFAULT );
}
- else if( !strncasecmp( start, "sub?", sizeof("sub?")-1 )) {
- *scope = LDAP_SCOPE_SUBTREE;
- start += sizeof("sub?")-1;
+
+ /* strip "authid-" prefix for parsing */
+ savearg0 = argv[0];
+ argv[0] += STRLENOF( "authid-" );
+ rc = rewrite_parse( sasl_rwinfo, fname, lineno, argc, argv );
+ argv[0] = savearg0;
+
+ return rc;
+}
+
+int slap_sasl_rewrite_destroy( void )
+{
+ if ( sasl_rwinfo ) {
+ rewrite_info_delete( &sasl_rwinfo );
+ sasl_rwinfo = NULL;
}
- else {
- free( searchbase->bv_val );
- searchbase->bv_val = NULL;
- return( LDAP_PROTOCOL_ERROR );
+
+ return 0;
+}
+
+int slap_sasl_regexp_rewrite_config(
+ const char *fname,
+ int lineno,
+ const char *match,
+ const char *replace,
+ const char *context )
+{
+ int rc;
+ char *argvRule[] = { "rewriteRule", NULL, NULL, ":@", NULL };
+
+ /* init at first call */
+ if ( sasl_rwinfo == NULL ) {
+ char *argvEngine[] = { "rewriteEngine", "on", NULL };
+ char *argvContext[] = { "rewriteContext", NULL, NULL };
+
+ /* initialize rewrite engine */
+ sasl_rwinfo = rewrite_info_init( REWRITE_MODE_USE_DEFAULT );
+
+ /* switch on rewrite engine */
+ rc = rewrite_parse( sasl_rwinfo, fname, lineno, 2, argvEngine );
+ if (rc != LDAP_SUCCESS) {
+ return rc;
+ }
+
+ /* create generic authid context */
+ argvContext[1] = AUTHID_CONTEXT;
+ rc = rewrite_parse( sasl_rwinfo, fname, lineno, 2, argvContext );
+ if (rc != LDAP_SUCCESS) {
+ return rc;
+ }
}
- /* Grab the filter */
- *filter = str2filter( start );
+ argvRule[1] = (char *)match;
+ argvRule[2] = (char *)replace;
+ rc = rewrite_parse( sasl_rwinfo, fname, lineno, 4, argvRule );
- return( LDAP_SUCCESS );
+ return rc;
}
-
+#endif /* SLAP_AUTH_REWRITE */
int slap_sasl_regexp_config( const char *match, const char *replace )
{
-#ifdef HAVE_CYRUS_SASL
- const char *c;
- int rc, n;
+ int rc;
SaslRegexp_t *reg;
- struct berval bv, nbv;
SaslRegexp = (SaslRegexp_t *) ch_realloc( (char *) SaslRegexp,
(nSaslRegexp + 1) * sizeof(SaslRegexp_t) );
- reg = &( SaslRegexp[nSaslRegexp] );
- ber_str2bv( match, 0, 0, &bv );
- rc = dnNormalize2( NULL, &bv, &nbv );
- if ( rc ) {
-#ifdef NEW_LOGGING
- LDAP_LOG(( "sasl", LDAP_LEVEL_ERR,
- "slap_sasl_regexp_config: \"%s\" could not be normalized.\n",
- match ));
-#else
- Debug( LDAP_DEBUG_ANY,
- "SASL match pattern %s could not be normalized.\n",
- match, 0, 0 );
-#endif
- return( rc );
- }
- reg->sr_match = nbv.bv_val;
- ber_str2bv( replace, 0, 0, &bv );
- rc = dnNormalize2( NULL, &bv, &nbv );
- if ( rc ) {
-#ifdef NEW_LOGGING
- LDAP_LOG(( "sasl", LDAP_LEVEL_ERR,
- "slap_sasl_regexp_config: \"%s\" could not be normalized.\n",
- replace ));
-#else
- Debug( LDAP_DEBUG_ANY,
- "SASL replace pattern %s could not be normalized.\n",
- replace, 0, 0 );
-#endif
- return( rc );
- }
- reg->sr_replace = nbv.bv_val;
+ reg = &SaslRegexp[nSaslRegexp];
+
+ reg->sr_match = ch_strdup( match );
+ reg->sr_replace = ch_strdup( replace );
+
+#ifdef SLAP_AUTH_REWRITE
+ rc = slap_sasl_regexp_rewrite_config( "sasl-regexp", 0,
+ match, replace, AUTHID_CONTEXT );
+ if ( rc == LDAP_SUCCESS ) nSaslRegexp++;
+ return rc;
+#else /* ! SLAP_AUTH_REWRITE */
/* Precompile matching pattern */
rc = regcomp( ®->sr_workspace, reg->sr_match, REG_EXTENDED|REG_ICASE );
if ( rc ) {
-#ifdef NEW_LOGGING
- LDAP_LOG(( "sasl", LDAP_LEVEL_ERR,
- "slap_sasl_regexp_config: \"%s\" could not be compiled.\n",
- reg->sr_match ));
-#else
Debug( LDAP_DEBUG_ANY,
"SASL match pattern %s could not be compiled by regexp engine\n",
reg->sr_match, 0, 0 );
-#endif
- return( LDAP_OPERATIONS_ERROR );
+#ifdef ENABLE_REWRITE
+ /* Dummy block to force symbol references in librewrite */
+ if ( slapMode == ( SLAP_SERVER_MODE|SLAP_TOOL_MODE )) {
+ rewrite_info_init( 0 );
}
-
- /* Precompile replace pattern. Find the $<n> placeholders */
- reg->sr_offset[0] = -2;
- n = 1;
- for ( c = reg->sr_replace; *c; c++ ) {
- if ( *c == '\\' ) {
- c++;
- continue;
- }
- if ( *c == '$' ) {
- if ( n == SASLREGEX_REPLACE ) {
-#ifdef NEW_LOGGING
- LDAP_LOG(( "sasl", LDAP_LEVEL_ERR,
- "slap_sasl_regexp_config: \"%s\" has too many $n "
- "placeholders (max %d)\n",
- reg->sr_replace, SASLREGEX_REPLACE ));
-#else
- Debug( LDAP_DEBUG_ANY,
- "SASL replace pattern %s has too many $n "
- "placeholders (max %d)\n",
- reg->sr_replace, SASLREGEX_REPLACE, 0 );
#endif
-
- return( LDAP_OPERATIONS_ERROR );
- }
- reg->sr_offset[n] = c - reg->sr_replace;
- n++;
- }
+ return( LDAP_OTHER );
}
- /* Final placeholder, after the last $n */
- reg->sr_offset[n] = c - reg->sr_replace;
- n++;
- reg->sr_offset[n] = -1;
+ rc = slap_sasl_rx_off( reg->sr_replace, reg->sr_offset );
+ if ( rc != LDAP_SUCCESS ) return rc;
nSaslRegexp++;
-#endif
return( LDAP_SUCCESS );
+#endif /* ! SLAP_AUTH_REWRITE */
}
-
-#ifdef HAVE_CYRUS_SASL
-
-/* Take the passed in SASL name and attempt to convert it into an
- LDAP URI to find the matching LDAP entry, using the pattern matching
- strings given in the saslregexp config file directive(s) */
-static
-char *slap_sasl_regexp( char *saslname )
+void slap_sasl_regexp_unparse( BerVarray *out )
{
- char *uri=NULL;
- int i, n, len, insert;
- SaslRegexp_t *reg;
-
-#ifdef NEW_LOGGING
- LDAP_LOG(( "sasl", LDAP_LEVEL_ENTRY,
- "slap_sasl_regexp: converting SASL name %s\n", saslname ));
-#else
- Debug( LDAP_DEBUG_TRACE, "slap_sasl_regexp: converting SASL name %s\n",
- saslname, 0, 0 );
-#endif
-
- if (( saslname == NULL ) || ( nSaslRegexp == 0 ))
- return( NULL );
-
- /* Match the normalized SASL name to the saslregexp patterns */
- for( reg = SaslRegexp,i=0; i<nSaslRegexp; i++,reg++ ) {
- if ( regexec( ®->sr_workspace, saslname, SASLREGEX_REPLACE,
- reg->sr_strings, 0) == 0 )
- break;
+ int i;
+ BerVarray bva = NULL;
+ char ibuf[32], *ptr;
+ struct berval idx;
+
+ if ( !nSaslRegexp ) return;
+
+ idx.bv_val = ibuf;
+ bva = ch_malloc( (nSaslRegexp+1) * sizeof(struct berval) );
+ BER_BVZERO(bva+nSaslRegexp);
+ for ( i=0; i<nSaslRegexp; i++ ) {
+ idx.bv_len = sprintf( idx.bv_val, "{%d}", i);
+ bva[i].bv_len = idx.bv_len + strlen( SaslRegexp[i].sr_match ) +
+ strlen( SaslRegexp[i].sr_replace ) + 5;
+ bva[i].bv_val = ch_malloc( bva[i].bv_len+1 );
+ ptr = lutil_strcopy( bva[i].bv_val, ibuf );
+ *ptr++ = '"';
+ ptr = lutil_strcopy( ptr, SaslRegexp[i].sr_match );
+ ptr = lutil_strcopy( ptr, "\" \"" );
+ ptr = lutil_strcopy( ptr, SaslRegexp[i].sr_replace );
+ *ptr++ = '"';
+ *ptr = '\0';
}
+ *out = bva;
+}
- if( i >= nSaslRegexp )
- return( NULL );
-
- /*
- * The match pattern may have been of the form "a(b.*)c(d.*)e" and the
- * replace pattern of the form "x$1y$2z". The returned string needs
- * to replace the $1,$2 with the strings that matched (b.*) and (d.*)
- */
-
+#ifndef SLAP_AUTH_REWRITE
+/* Perform replacement on regexp matches */
+static void slap_sasl_rx_exp(
+ const char *rep,
+ const int *off,
+ regmatch_t *str,
+ const char *saslname,
+ struct berval *out,
+ void *ctx )
+{
+ int i, n, len, insert;
/* Get the total length of the final URI */
n=1;
len = 0;
- while( reg->sr_offset[n] >= 0 ) {
+ while( off[n] >= 0 ) {
/* Len of next section from replacement string (x,y,z above) */
- len += reg->sr_offset[n] - reg->sr_offset[n-1] - 2;
- if( reg->sr_offset[n+1] < 0)
+ len += off[n] - off[n-1] - 2;
+ if( off[n+1] < 0)
break;
/* Len of string from saslname that matched next $i (b,d above) */
- i = reg->sr_replace[ reg->sr_offset[n] + 1 ] - '0';
- len += reg->sr_strings[i].rm_eo - reg->sr_strings[i].rm_so;
+ i = rep[ off[n] + 1 ] - '0';
+ len += str[i].rm_eo - str[i].rm_so;
n++;
}
- uri = ch_malloc( len + 1 );
+ out->bv_val = slap_sl_malloc( len + 1, ctx );
+ out->bv_len = len;
/* Fill in URI with replace string, replacing $i as we go */
n=1;
insert = 0;
- while( reg->sr_offset[n] >= 0) {
+ while( off[n] >= 0) {
/* Paste in next section from replacement string (x,y,z above) */
- len = reg->sr_offset[n] - reg->sr_offset[n-1] - 2;
- strncpy( uri+insert, reg->sr_replace + reg->sr_offset[n-1] + 2, len);
+ len = off[n] - off[n-1] - 2;
+ strncpy( out->bv_val+insert, rep + off[n-1] + 2, len);
insert += len;
- if( reg->sr_offset[n+1] < 0)
+ if( off[n+1] < 0)
break;
/* Paste in string from saslname that matched next $i (b,d above) */
- i = reg->sr_replace[ reg->sr_offset[n] + 1 ] - '0';
- len = reg->sr_strings[i].rm_eo - reg->sr_strings[i].rm_so;
- strncpy( uri+insert, saslname + reg->sr_strings[i].rm_so, len );
+ i = rep[ off[n] + 1 ] - '0';
+ len = str[i].rm_eo - str[i].rm_so;
+ strncpy( out->bv_val+insert, saslname + str[i].rm_so, len );
insert += len;
n++;
}
- uri[insert] = '\0';
-#ifdef NEW_LOGGING
- LDAP_LOG(( "sasl", LDAP_LEVEL_ENTRY,
- "slap_sasl_regexp: converted SASL name to %s\n", uri ));
-#else
- Debug( LDAP_DEBUG_TRACE,
- "slap_sasl_regexp: converted SASL name to %s\n", uri, 0, 0 );
-#endif
-
- return( uri );
-}
-
-/* Two empty callback functions to avoid sending results */
-static void sasl_sc_r( Connection *conn, Operation *o, ber_tag_t tag,
- ber_int_t msgid, ber_int_t err, const char *matched,
- const char *text, BerVarray ref, const char *resoid,
- struct berval *resdata, struct berval *sasldata, LDAPControl **c)
-{
+ out->bv_val[insert] = '\0';
}
+#endif /* ! SLAP_AUTH_REWRITE */
-static void sasl_sc_s( Connection *conn, Operation *o, ber_int_t err,
- const char *matched, const char *text, BerVarray refs, LDAPControl **c,
- int nentries)
-{
-}
+/* Take the passed in SASL name and attempt to convert it into an
+ LDAP URI to find the matching LDAP entry, using the pattern matching
+ strings given in the saslregexp config file directive(s) */
-/* This callback actually does some work...*/
-static int sasl_sc_sasl2dn( BackendDB *be, Connection *conn, Operation *o,
- Entry *e, AttributeName *an, int ao, LDAPControl **c)
+static int slap_authz_regexp( struct berval *in, struct berval *out,
+ int flags, void *ctx )
{
- struct berval *ndn = o->o_callback->sc_private;
+#ifdef SLAP_AUTH_REWRITE
+ const char *context = AUTHID_CONTEXT;
- /* We only want to be called once */
- if (ndn->bv_val) {
- free(ndn->bv_val);
- ndn->bv_val = NULL;
-#ifdef NEW_LOGGING
- LDAP_LOG(( "sasl", LDAP_LEVEL_DETAIL1,
- "slap_sasl2dn: search DN returned more than 1 entry\n" ));
-#else
- Debug( LDAP_DEBUG_TRACE,
- "slap_sasl2dn: search DN returned more than 1 entry\n", 0,0,0 );
-#endif
- return -1;
- } else {
- ber_dupbv(ndn, &e->e_nname);
+ if ( sasl_rwinfo == NULL || BER_BVISNULL( in ) ) {
return 0;
}
-}
-/*
- * Given a SASL name (e.g. "UID=name,cn=REALM,cn=MECH,cn=AUTH")
- * return the LDAP DN to which it matches. The SASL regexp rules in the config
- * file turn the SASL name into an LDAP URI. If the URI is just a DN (or a
- * search with scope=base), just return the URI (or its searchbase). Otherwise
- * an internal search must be done, and if that search returns exactly one
- * entry, return the DN of that one entry.
- */
+ /* FIXME: if aware of authc/authz mapping,
+ * we could use different contexts ... */
+ switch ( rewrite_session( sasl_rwinfo, context, in->bv_val, NULL,
+ &out->bv_val ) )
+ {
+ case REWRITE_REGEXEC_OK:
+ if ( !BER_BVISNULL( out ) ) {
+ char *val = out->bv_val;
+ ber_str2bv_x( val, 0, 1, out, ctx );
+ if ( val != in->bv_val ) {
+ free( val );
+ }
+ } else {
+ ber_dupbv_x( out, in, ctx );
+ }
+ Debug( LDAP_DEBUG_ARGS,
+ "[rw] %s: \"%s\" -> \"%s\"\n",
+ context, in->bv_val, out->bv_val );
+ return 1;
+
+ case REWRITE_REGEXEC_UNWILLING:
+ case REWRITE_REGEXEC_ERR:
+ default:
+ return 0;
+ }
-void slap_sasl2dn( struct berval *saslname, struct berval *dn )
-{
- char *uri=NULL;
- struct berval searchbase = {0, NULL};
- int rc, scope;
- Backend *be;
- Filter *filter=NULL;
- slap_callback cb = {sasl_sc_r, sasl_sc_s, sasl_sc_sasl2dn, NULL};
- Operation op = {0};
+#else /* ! SLAP_AUTH_REWRITE */
+ char *saslname = in->bv_val;
+ SaslRegexp_t *reg;
+ regmatch_t sr_strings[SASLREGEX_REPLACE]; /* strings matching $1,$2 ... */
+ int i;
-#ifdef NEW_LOGGING
- LDAP_LOG(( "sasl", LDAP_LEVEL_ENTRY,
- "slap_sasl2dn: converting SASL name %s to DN.\n", saslname->bv_val ));
-#else
- Debug( LDAP_DEBUG_TRACE,
- "==>slap_sasl2dn: Converting SASL name %s to a DN\n", saslname->bv_val, 0,0 );
-#endif
- dn->bv_val = NULL;
- dn->bv_len = 0;
- cb.sc_private = dn;
+ memset( out, 0, sizeof( *out ) );
- /* Convert the SASL name into an LDAP URI */
- uri = slap_sasl_regexp( saslname->bv_val );
- if( uri == NULL )
- goto FINISHED;
+ Debug( LDAP_DEBUG_TRACE, "slap_authz_regexp: converting SASL name %s\n",
+ saslname, 0, 0 );
- rc = slap_parseURI( uri, &searchbase, &scope, &filter );
- if( rc ) {
- goto FINISHED;
+ if (( saslname == NULL ) || ( nSaslRegexp == 0 )) {
+ return( 0 );
}
- /* Massive shortcut: search scope == base */
- if( scope == LDAP_SCOPE_BASE ) {
- *dn = searchbase;
- searchbase.bv_len = 0;
- searchbase.bv_val = NULL;
- goto FINISHED;
+ /* Match the normalized SASL name to the saslregexp patterns */
+ for( reg = SaslRegexp,i=0; i<nSaslRegexp; i++,reg++ ) {
+ if ( regexec( ®->sr_workspace, saslname, SASLREGEX_REPLACE,
+ sr_strings, 0) == 0 )
+ break;
}
- /* Must do an internal search */
+ if( i >= nSaslRegexp ) return( 0 );
+
+ /*
+ * The match pattern may have been of the form "a(b.*)c(d.*)e" and the
+ * replace pattern of the form "x$1y$2z". The returned string needs
+ * to replace the $1,$2 with the strings that matched (b.*) and (d.*)
+ */
+ slap_sasl_rx_exp( reg->sr_replace, reg->sr_offset,
+ sr_strings, saslname, out, ctx );
-#ifdef NEW_LOGGING
- LDAP_LOG(( "sasl", LDAP_LEVEL_DETAIL1,
- "slap_sasl2dn: performing internal search (base=%s, scope=%d)\n",
- searchbase.bv_val, scope ));
-#else
Debug( LDAP_DEBUG_TRACE,
- "slap_sasl2dn: performing internal search (base=%s, scope=%d)\n",
- searchbase.bv_val, scope, 0 );
-#endif
+ "slap_authz_regexp: converted SASL name to %s\n",
+ BER_BVISEMPTY( out ) ? "" : out->bv_val, 0, 0 );
- be = select_backend( &searchbase, 0, 1 );
- if(( be == NULL ) || ( be->be_search == NULL))
- goto FINISHED;
- suffix_alias( be, &searchbase );
+ return( 1 );
+#endif /* ! SLAP_AUTH_REWRITE */
+}
- ldap_pvt_thread_mutex_init( &op.o_abandonmutex );
- op.o_tag = LDAP_REQ_SEARCH;
- op.o_protocol = LDAP_VERSION3;
- op.o_ndn = *saslname;
- op.o_callback = &cb;
- op.o_time = slap_get_time();
+/* This callback actually does some work...*/
+static int sasl_sc_sasl2dn( Operation *op, SlapReply *rs )
+{
+ struct berval *ndn = op->o_callback->sc_private;
- (*be->be_search)( be, /*conn*/NULL, &op, /*base*/NULL, &searchbase,
- scope, /*deref=*/1, /*sizelimit=*/1, /*time=*/0, filter, /*fstr=*/NULL,
- /*attrs=*/NULL, /*attrsonly=*/0 );
-
- ldap_pvt_thread_mutex_destroy( &op.o_abandonmutex );
+ if ( rs->sr_type != REP_SEARCH ) return LDAP_SUCCESS;
-FINISHED:
- if( searchbase.bv_len ) ch_free( searchbase.bv_val );
- if( filter ) filter_free( filter );
- if( uri ) ch_free( uri );
-
-#ifdef NEW_LOGGING
- LDAP_LOG(( "sasl", LDAP_LEVEL_ENTRY,
- "slap_sasl2dn: Converted SASL name to %s\n",
- dn->bv_len ? dn->bv_val : "<nothing>" ));
-#else
- Debug( LDAP_DEBUG_TRACE, "<==slap_sasl2dn: Converted SASL name to %s\n",
- dn->bv_len ? dn->bv_val : "<nothing>", 0, 0 );
-#endif
+ /* We only want to be called once */
+ if ( !BER_BVISNULL( ndn ) ) {
+ op->o_tmpfree( ndn->bv_val, op->o_tmpmemctx );
+ BER_BVZERO( ndn );
+
+ Debug( LDAP_DEBUG_TRACE,
+ "%s: slap_sc_sasl2dn: search DN returned more than 1 entry\n",
+ op->o_log_prefix, 0, 0 );
+ return LDAP_UNAVAILABLE; /* short-circuit the search */
+ }
- return;
+ ber_dupbv_x( ndn, &rs->sr_entry->e_nname, op->o_tmpmemctx );
+ return LDAP_SUCCESS;
}
+
typedef struct smatch_info {
struct berval *dn;
int match;
} smatch_info;
-static int sasl_sc_smatch( BackendDB *be, Connection *conn, Operation *o,
- Entry *e, AttributeName *an, int ao, LDAPControl **c)
+static int sasl_sc_smatch( Operation *o, SlapReply *rs )
{
smatch_info *sm = o->o_callback->sc_private;
- if (dn_match(sm->dn, &e->e_nname)) {
+ if (rs->sr_type != REP_SEARCH) return 0;
+
+ if (dn_match(sm->dn, &rs->sr_entry->e_nname)) {
sm->match = 1;
- return -1; /* short-circuit the search */
- } else {
- return 1;
+ return LDAP_UNAVAILABLE; /* short-circuit the search */
+ }
+
+ return 0;
+}
+
+int
+slap_sasl_matches( Operation *op, BerVarray rules,
+ struct berval *assertDN, struct berval *authc )
+{
+ int rc = LDAP_INAPPROPRIATE_AUTH;
+
+ if ( rules != NULL ) {
+ int i;
+
+ for( i = 0; !BER_BVISNULL( &rules[i] ); i++ ) {
+ rc = slap_sasl_match( op, &rules[i], assertDN, authc );
+ if ( rc == LDAP_SUCCESS ) break;
+ }
}
+
+ return rc;
}
/*
* The assertDN should not have the dn: prefix
*/
-static
-int slap_sasl_match( char *rule, struct berval *assertDN, struct berval *authc )
+static int
+slap_sasl_match( Operation *opx, struct berval *rule,
+ struct berval *assertDN, struct berval *authc )
{
- struct berval searchbase = {0, NULL};
- int rc, scope;
- Backend *be;
- Filter *filter=NULL;
+ int rc;
regex_t reg;
smatch_info sm;
- slap_callback cb = {sasl_sc_r, sasl_sc_s, sasl_sc_smatch, &sm};
+ slap_callback cb = { NULL, sasl_sc_smatch, NULL, NULL };
Operation op = {0};
+ SlapReply rs = {REP_RESULT};
+ struct berval base = BER_BVNULL;
+
+ sm.dn = assertDN;
+ sm.match = 0;
+ cb.sc_private = &sm;
-#ifdef NEW_LOGGING
- LDAP_LOG(( "sasl", LDAP_LEVEL_ENTRY,
- "slap_sasl_match: comparing DN %s to rule %s\n", assertDN->bv_val, rule ));
-#else
Debug( LDAP_DEBUG_TRACE,
- "===>slap_sasl_match: comparing DN %s to rule %s\n", assertDN->bv_val, rule, 0 );
-#endif
+ "===>slap_sasl_match: comparing DN %s to rule %s\n",
+ assertDN->bv_val, rule->bv_val, 0 );
+
+ /* NOTE: don't normalize rule if authz syntax is enabled */
+ rc = slap_parseURI( opx, rule, &base, &op.o_req_ndn,
+ &op.ors_scope, &op.ors_filter, &op.ors_filterstr,
+#ifdef SLAP_AUTHZ_SYNTAX
+ 0
+#else /* ! SLAP_AUTHZ_SYNTAX */
+ 1
+#endif /* ! SLAP_AUTHZ_SYNTAX */
+ );
+
+ if( rc != LDAP_SUCCESS ) goto CONCLUDED;
+
+ switch ( op.ors_scope ) {
+ case LDAP_X_SCOPE_EXACT:
+exact_match:
+ if ( dn_match( &op.o_req_ndn, assertDN ) ) {
+ rc = LDAP_SUCCESS;
+ } else {
+ rc = LDAP_INAPPROPRIATE_AUTH;
+ }
+ goto CONCLUDED;
+
+ case LDAP_X_SCOPE_CHILDREN:
+ case LDAP_X_SCOPE_SUBTREE:
+ case LDAP_X_SCOPE_ONELEVEL:
+ {
+ int d = assertDN->bv_len - op.o_req_ndn.bv_len;
+
+ rc = LDAP_INAPPROPRIATE_AUTH;
- rc = slap_parseURI( rule, &searchbase, &scope, &filter );
- if( rc != LDAP_SUCCESS )
+ if ( d == 0 && op.ors_scope == LDAP_X_SCOPE_SUBTREE ) {
+ goto exact_match;
+
+ } else if ( d > 0 ) {
+ struct berval bv;
+
+ /* leave room for at least one char of attributeType,
+ * one for '=' and one for ',' */
+ if ( d < STRLENOF( "x=,") ) {
+ goto CONCLUDED;
+ }
+
+ bv.bv_len = op.o_req_ndn.bv_len;
+ bv.bv_val = assertDN->bv_val + d;
+
+ if ( bv.bv_val[ -1 ] == ',' && dn_match( &op.o_req_ndn, &bv ) ) {
+ switch ( op.ors_scope ) {
+ case LDAP_X_SCOPE_SUBTREE:
+ case LDAP_X_SCOPE_CHILDREN:
+ rc = LDAP_SUCCESS;
+ break;
+
+ case LDAP_X_SCOPE_ONELEVEL:
+ {
+ struct berval pdn;
+
+ dnParent( assertDN, &pdn );
+ /* the common portion of the DN
+ * already matches, so only check
+ * if parent DN of assertedDN
+ * is all the pattern */
+ if ( pdn.bv_len == op.o_req_ndn.bv_len ) {
+ rc = LDAP_SUCCESS;
+ }
+ break;
+ }
+ default:
+ /* at present, impossible */
+ assert( 0 );
+ }
+ }
+ }
goto CONCLUDED;
+ }
- /* Massive shortcut: search scope == base */
- if( scope == LDAP_SCOPE_BASE ) {
- rc = regcomp(®, searchbase.bv_val,
+ case LDAP_X_SCOPE_REGEX:
+ rc = regcomp(®, op.o_req_ndn.bv_val,
REG_EXTENDED|REG_ICASE|REG_NOSUB);
if ( rc == 0 ) {
rc = regexec(®, assertDN->bv_val, 0, NULL, 0);
regfree( ® );
}
- if ( rc == 0 )
+ if ( rc == 0 ) {
+ rc = LDAP_SUCCESS;
+ } else {
+ rc = LDAP_INAPPROPRIATE_AUTH;
+ }
+ goto CONCLUDED;
+
+ case LDAP_X_SCOPE_GROUP: {
+ char *tmp;
+
+ /* Now filterstr looks like "(&(objectClass=<group_oc>)(<member_at>="
+ * we need to append the <assertDN> so that the <group_dn> is searched
+ * with scope "base", and the filter ensures that <assertDN> is
+ * member of the group */
+ tmp = ch_realloc( op.ors_filterstr.bv_val, op.ors_filterstr.bv_len +
+ assertDN->bv_len + STRLENOF( /*"(("*/ "))" ) + 1 );
+ if ( tmp == NULL ) {
+ rc = LDAP_NO_MEMORY;
+ goto CONCLUDED;
+ }
+ op.ors_filterstr.bv_val = tmp;
+
+ tmp = lutil_strcopy( &tmp[op.ors_filterstr.bv_len], assertDN->bv_val );
+ tmp = lutil_strcopy( tmp, /*"(("*/ "))" );
+
+ /* pass opx because str2filter_x may (and does) use o_tmpmfuncs */
+ op.ors_filter = str2filter_x( opx, op.ors_filterstr.bv_val );
+ if ( op.ors_filter == NULL ) {
+ rc = LDAP_PROTOCOL_ERROR;
+ goto CONCLUDED;
+ }
+ op.ors_scope = LDAP_SCOPE_BASE;
+
+ /* hijack match DN: use that of the group instead of the assertDN;
+ * assertDN is now in the filter */
+ sm.dn = &op.o_req_ndn;
+
+ /* do the search */
+ break;
+ }
+
+ case LDAP_X_SCOPE_USERS:
+ if ( !BER_BVISEMPTY( assertDN ) ) {
rc = LDAP_SUCCESS;
- else
+ } else {
rc = LDAP_INAPPROPRIATE_AUTH;
+ }
goto CONCLUDED;
+
+ default:
+ break;
}
/* Must run an internal search. */
+ if ( op.ors_filter == NULL ) {
+ rc = LDAP_FILTER_ERROR;
+ goto CONCLUDED;
+ }
-#ifdef NEW_LOGGING
- LDAP_LOG(( "sasl", LDAP_LEVEL_DETAIL1,
- "slap_sasl_match: performing internal search (base=%s, scope=%d)\n",
- searchbase.bv_val, scope ));
-#else
Debug( LDAP_DEBUG_TRACE,
"slap_sasl_match: performing internal search (base=%s, scope=%d)\n",
- searchbase.bv_val, scope, 0 );
-#endif
+ op.o_req_ndn.bv_val, op.ors_scope, 0 );
- be = select_backend( &searchbase, 0, 1 );
- if(( be == NULL ) || ( be->be_search == NULL)) {
+ op.o_bd = select_backend( &op.o_req_ndn, 0, 1 );
+ if(( op.o_bd == NULL ) || ( op.o_bd->be_search == NULL)) {
rc = LDAP_INAPPROPRIATE_AUTH;
goto CONCLUDED;
}
- suffix_alias( be, &searchbase );
- sm.dn = assertDN;
- sm.match = 0;
-
- ldap_pvt_thread_mutex_init( &op.o_abandonmutex );
+ op.o_hdr = opx->o_hdr;
op.o_tag = LDAP_REQ_SEARCH;
- op.o_protocol = LDAP_VERSION3;
op.o_ndn = *authc;
op.o_callback = &cb;
- op.o_time = slap_get_time();
-
- (*be->be_search)( be, /*conn=*/NULL, &op, /*base=*/NULL, &searchbase,
- scope, /*deref=*/1, /*sizelimit=*/0, /*time=*/0, filter, /*fstr=*/NULL,
- /*attrs=*/NULL, /*attrsonly=*/0 );
+ slap_op_time( &op.o_time, &op.o_tincr );
+ op.o_do_not_cache = 1;
+ op.o_is_auth_check = 1;
+ /* use req_ndn as req_dn instead of non-pretty base of uri */
+ if( !BER_BVISNULL( &base ) ) {
+ ch_free( base.bv_val );
+ /* just in case... */
+ BER_BVZERO( &base );
+ }
+ ber_dupbv_x( &op.o_req_dn, &op.o_req_ndn, op.o_tmpmemctx );
+ op.ors_deref = LDAP_DEREF_NEVER;
+ op.ors_slimit = 1;
+ op.ors_tlimit = SLAP_NO_LIMIT;
+ op.ors_attrs = slap_anlist_no_attrs;
+ op.ors_attrsonly = 1;
- ldap_pvt_thread_mutex_destroy( &op.o_abandonmutex );
+ op.o_bd->be_search( &op, &rs );
- if (sm.match)
+ if (sm.match) {
rc = LDAP_SUCCESS;
- else
+ } else {
rc = LDAP_INAPPROPRIATE_AUTH;
+ }
CONCLUDED:
- if( searchbase.bv_len ) ch_free( searchbase.bv_val );
- if( filter ) filter_free( filter );
-#ifdef NEW_LOGGING
- LDAP_LOG(( "sasl", LDAP_LEVEL_ENTRY,
- "slap_sasl_match: comparison returned %d\n", rc ));
-#else
+ if( !BER_BVISNULL( &op.o_req_dn ) ) slap_sl_free( op.o_req_dn.bv_val, opx->o_tmpmemctx );
+ if( !BER_BVISNULL( &op.o_req_ndn ) ) slap_sl_free( op.o_req_ndn.bv_val, opx->o_tmpmemctx );
+ if( op.ors_filter ) filter_free_x( opx, op.ors_filter );
+ if( !BER_BVISNULL( &op.ors_filterstr ) ) ch_free( op.ors_filterstr.bv_val );
+
Debug( LDAP_DEBUG_TRACE,
"<===slap_sasl_match: comparison returned %d\n", rc, 0, 0);
-#endif
return( rc );
}
* attribute named by *attr. If any of those rules map to the *assertDN, the
* authorization is approved.
*
- * DN's passed in should have a dn: prefix
+ * The DNs should not have the dn: prefix
*/
static int
-slap_sasl_check_authz(struct berval *searchDN, struct berval *assertDN, struct berval *attr, struct berval *authc)
+slap_sasl_check_authz( Operation *op,
+ struct berval *searchDN,
+ struct berval *assertDN,
+ AttributeDescription *ad,
+ struct berval *authc )
{
- const char *errmsg;
- int i, rc;
- BerVarray vals=NULL;
- AttributeDescription *ad=NULL;
- struct berval bv;
-
-#ifdef NEW_LOGGING
- LDAP_LOG(( "sasl", LDAP_LEVEL_ENTRY,
- "slap_sasl_check_authz: does %s match %s rule in %s?\n",
- assertDN->bv_val, attr->bv_val, searchDN->bv_val ));
-#else
+ int rc,
+ do_not_cache = op->o_do_not_cache;
+ BerVarray vals = NULL;
+
Debug( LDAP_DEBUG_TRACE,
"==>slap_sasl_check_authz: does %s match %s rule in %s?\n",
- assertDN->bv_val, attr->bv_val, searchDN->bv_val);
-#endif
+ assertDN->bv_val, ad->ad_cname.bv_val, searchDN->bv_val);
- rc = slap_bv2ad( attr, &ad, &errmsg );
- if( rc != LDAP_SUCCESS )
- goto COMPLETE;
+ /* ITS#4760: don't cache group access */
+ op->o_do_not_cache = 1;
+ rc = backend_attribute( op, NULL, searchDN, ad, &vals, ACL_AUTH );
+ op->o_do_not_cache = do_not_cache;
+ if( rc != LDAP_SUCCESS ) goto COMPLETE;
- bv.bv_val = searchDN->bv_val + 3;
- bv.bv_len = searchDN->bv_len - 3;
- rc = backend_attribute( NULL, NULL, NULL, NULL, &bv, ad, &vals );
- if( rc != LDAP_SUCCESS )
- goto COMPLETE;
-
- bv.bv_val = assertDN->bv_val + 3;
- bv.bv_len = assertDN->bv_len - 3;
- /* Check if the *assertDN matches any **vals */
- for( i=0; vals[i].bv_val != NULL; i++ ) {
- rc = slap_sasl_match( vals[i].bv_val, &bv, authc );
- if ( rc == LDAP_SUCCESS )
- goto COMPLETE;
- }
- rc = LDAP_INAPPROPRIATE_AUTH;
+ /* Check if the *assertDN matches any *vals */
+ rc = slap_sasl_matches( op, vals, assertDN, authc );
COMPLETE:
- if( vals ) ber_bvarray_free( vals );
+ if( vals ) ber_bvarray_free_x( vals, op->o_tmpmemctx );
-#ifdef NEW_LOGGING
- LDAP_LOG(( "sasl", LDAP_LEVEL_ENTRY,
- "slap_sasl_check_authz: %s check returning %s\n", attr->bv_val, rc ));
-#else
Debug( LDAP_DEBUG_TRACE,
- "<==slap_sasl_check_authz: %s check returning %d\n", attr->bv_val, rc, 0);
-#endif
+ "<==slap_sasl_check_authz: %s check returning %d\n",
+ ad->ad_cname.bv_val, rc, 0);
return( rc );
}
-#endif /* HAVE_CYRUS_SASL */
+/*
+ * Given a SASL name (e.g. "UID=name,cn=REALM,cn=MECH,cn=AUTH")
+ * return the LDAP DN to which it matches. The SASL regexp rules in the config
+ * file turn the SASL name into an LDAP URI. If the URI is just a DN (or a
+ * search with scope=base), just return the URI (or its searchbase). Otherwise
+ * an internal search must be done, and if that search returns exactly one
+ * entry, return the DN of that one entry.
+ */
+void
+slap_sasl2dn(
+ Operation *opx,
+ struct berval *saslname,
+ struct berval *sasldn,
+ int flags )
+{
+ int rc;
+ slap_callback cb = { NULL, sasl_sc_sasl2dn, NULL, NULL };
+ Operation op = {0};
+ SlapReply rs = {REP_RESULT};
+ struct berval regout = BER_BVNULL;
+ struct berval base = BER_BVNULL;
-/* Check if a bind can SASL authorize to another identity.
- Accepts authorization DN's with "dn:" prefix */
+ Debug( LDAP_DEBUG_TRACE, "==>slap_sasl2dn: "
+ "converting SASL name %s to a DN\n",
+ saslname->bv_val, 0,0 );
+
+ BER_BVZERO( sasldn );
+ cb.sc_private = sasldn;
+
+ /* Convert the SASL name into a minimal URI */
+ if( !slap_authz_regexp( saslname, ®out, flags, opx->o_tmpmemctx ) ) {
+ goto FINISHED;
+ }
+
+ /* NOTE: always normalize regout because it results
+ * from string submatch expansion */
+ rc = slap_parseURI( opx, ®out, &base, &op.o_req_ndn,
+ &op.ors_scope, &op.ors_filter, &op.ors_filterstr, 1 );
+ if ( !BER_BVISNULL( ®out ) ) slap_sl_free( regout.bv_val, opx->o_tmpmemctx );
+ if ( rc != LDAP_SUCCESS ) {
+ goto FINISHED;
+ }
+
+ /* Must do an internal search */
+ op.o_bd = select_backend( &op.o_req_ndn, 0, 1 );
+
+ switch ( op.ors_scope ) {
+ case LDAP_X_SCOPE_EXACT:
+ *sasldn = op.o_req_ndn;
+ BER_BVZERO( &op.o_req_ndn );
+ /* intentionally continue to next case */
+
+ case LDAP_X_SCOPE_REGEX:
+ case LDAP_X_SCOPE_SUBTREE:
+ case LDAP_X_SCOPE_CHILDREN:
+ case LDAP_X_SCOPE_ONELEVEL:
+ case LDAP_X_SCOPE_GROUP:
+ case LDAP_X_SCOPE_USERS:
+ /* correctly parsed, but illegal */
+ goto FINISHED;
+
+ case LDAP_SCOPE_BASE:
+ case LDAP_SCOPE_ONELEVEL:
+ case LDAP_SCOPE_SUBTREE:
+ case LDAP_SCOPE_SUBORDINATE:
+ /* do a search */
+ break;
+
+ default:
+ /* catch unhandled cases (there shouldn't be) */
+ assert( 0 );
+ }
+
+ Debug( LDAP_DEBUG_TRACE,
+ "slap_sasl2dn: performing internal search (base=%s, scope=%d)\n",
+ op.o_req_ndn.bv_val, op.ors_scope, 0 );
+
+ if ( ( op.o_bd == NULL ) || ( op.o_bd->be_search == NULL) ) {
+ goto FINISHED;
+ }
+
+ /* Must run an internal search. */
+ if ( op.ors_filter == NULL ) {
+ rc = LDAP_FILTER_ERROR;
+ goto FINISHED;
+ }
+
+ op.o_hdr = opx->o_hdr;
+ op.o_tag = LDAP_REQ_SEARCH;
+ op.o_ndn = opx->o_conn->c_ndn;
+ op.o_callback = &cb;
+ slap_op_time( &op.o_time, &op.o_tincr );
+ op.o_do_not_cache = 1;
+ op.o_is_auth_check = 1;
+ op.ors_deref = LDAP_DEREF_NEVER;
+ op.ors_slimit = 1;
+ op.ors_tlimit = SLAP_NO_LIMIT;
+ op.ors_attrs = slap_anlist_no_attrs;
+ op.ors_attrsonly = 1;
+ /* use req_ndn as req_dn instead of non-pretty base of uri */
+ if( !BER_BVISNULL( &base ) ) {
+ ch_free( base.bv_val );
+ /* just in case... */
+ BER_BVZERO( &base );
+ }
+ ber_dupbv_x( &op.o_req_dn, &op.o_req_ndn, op.o_tmpmemctx );
+
+ op.o_bd->be_search( &op, &rs );
+
+FINISHED:
+ if( !BER_BVISEMPTY( sasldn ) ) {
+ opx->o_conn->c_authz_backend = op.o_bd;
+ }
+ if( !BER_BVISNULL( &op.o_req_dn ) ) {
+ slap_sl_free( op.o_req_dn.bv_val, opx->o_tmpmemctx );
+ }
+ if( !BER_BVISNULL( &op.o_req_ndn ) ) {
+ slap_sl_free( op.o_req_ndn.bv_val, opx->o_tmpmemctx );
+ }
+ if( op.ors_filter ) {
+ filter_free_x( opx, op.ors_filter );
+ }
+ if( !BER_BVISNULL( &op.ors_filterstr ) ) {
+ ch_free( op.ors_filterstr.bv_val );
+ }
+
+ Debug( LDAP_DEBUG_TRACE, "<==slap_sasl2dn: Converted SASL name to %s\n",
+ !BER_BVISEMPTY( sasldn ) ? sasldn->bv_val : "<nothing>", 0, 0 );
-static struct berval sasl_authz_src = {
- sizeof(SASL_AUTHZ_SOURCE_ATTR)-1, SASL_AUTHZ_SOURCE_ATTR };
+ return;
+}
-static struct berval sasl_authz_dst = {
- sizeof(SASL_AUTHZ_DEST_ATTR)-1, SASL_AUTHZ_DEST_ATTR };
-int slap_sasl_authorized( struct berval *authcDN, struct berval *authzDN )
+/* Check if a bind can SASL authorize to another identity.
+ * The DNs should not have the dn: prefix
+ */
+
+int slap_sasl_authorized( Operation *op,
+ struct berval *authcDN, struct berval *authzDN )
{
int rc = LDAP_INAPPROPRIATE_AUTH;
-#ifdef HAVE_CYRUS_SASL
/* User binding as anonymous */
if ( authzDN == NULL ) {
rc = LDAP_SUCCESS;
goto DONE;
}
-#ifdef NEW_LOGGING
- LDAP_LOG(( "sasl", LDAP_LEVEL_ENTRY,
- "slap_sasl_authorized: can %s become %s?\n", authcDN->bv_val, authzDN->bv_val ));
-#else
Debug( LDAP_DEBUG_TRACE,
- "==>slap_sasl_authorized: can %s become %s?\n", authcDN->bv_val, authzDN->bv_val, 0 );
-#endif
+ "==>slap_sasl_authorized: can %s become %s?\n",
+ authcDN->bv_len ? authcDN->bv_val : "(null)",
+ authzDN->bv_len ? authzDN->bv_val : "(null)", 0 );
/* If person is authorizing to self, succeed */
if ( dn_match( authcDN, authzDN ) ) {
goto DONE;
}
- /* Check source rules */
- rc = slap_sasl_check_authz( authcDN, authzDN, &sasl_authz_src,
- authcDN );
- if( rc == LDAP_SUCCESS ) {
+ /* Allow the manager to authorize as any DN. */
+ if( op->o_conn->c_authz_backend &&
+ be_isroot_dn( op->o_conn->c_authz_backend, authcDN ))
+ {
+ rc = LDAP_SUCCESS;
goto DONE;
}
+ /* Check source rules */
+ if( authz_policy & SASL_AUTHZ_TO ) {
+ rc = slap_sasl_check_authz( op, authcDN, authzDN,
+ slap_schema.si_ad_saslAuthzTo, authcDN );
+ if( rc == LDAP_SUCCESS && !(authz_policy & SASL_AUTHZ_AND) ) {
+ goto DONE;
+ }
+ }
+
/* Check destination rules */
- rc = slap_sasl_check_authz( authzDN, authcDN, &sasl_authz_dst,
- authcDN );
- if( rc == LDAP_SUCCESS ) {
- goto DONE;
+ if( authz_policy & SASL_AUTHZ_FROM ) {
+ rc = slap_sasl_check_authz( op, authzDN, authcDN,
+ slap_schema.si_ad_saslAuthzFrom, authcDN );
+ if( rc == LDAP_SUCCESS ) {
+ goto DONE;
+ }
}
rc = LDAP_INAPPROPRIATE_AUTH;
DONE:
-#endif
-#ifdef NEW_LOGGING
- LDAP_LOG(( "sasl", LDAP_LEVEL_ENTRY,
- "slap_sasl_authorized: return %d\n", rc ));
-#else
Debug( LDAP_DEBUG_TRACE,
"<== slap_sasl_authorized: return %d\n", rc, 0, 0 );
-#endif
return( rc );
}
projects / openldap / blobdiff