/* $OpenLDAP$ */
/* This work is part of OpenLDAP Software <http://www.openldap.org/>.
*
- * Copyright 1998-2003 The OpenLDAP Foundation.
+ * Copyright 1998-2004 The OpenLDAP Foundation.
+ * Portions Copyright 2000 Mark Adamson, Carnegie Mellon.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* top-level directory of the distribution or, alternatively, at
* <http://www.OpenLDAP.org/license.html>.
*/
-/* Portions Copyright (c) 2000, Mark Adamson, Carnegie Mellon.
- * All rights reserved.
- * This software is not subject to any license of Carnegie Mellon University.
- *
- * Redistribution and use in source and binary forms are permitted without
- * restriction or fee of any kind as long as this notice is preserved.
- *
- * The name "Carnegie Mellon" must not be used to endorse or promote
- * products derived from this software without prior written permission.
- */
#include "portable.h"
#define SASLREGEX_REPLACE 10
+#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)
+
+/*
+ * 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 saslAuthz{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 */
+ 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;
/* What SASL proxy authorization policies are allowed? */
-#define SASL_AUTHZ_NONE 0
-#define SASL_AUTHZ_FROM 1
-#define SASL_AUTHZ_TO 2
+#define SASL_AUTHZ_NONE 0x00
+#define SASL_AUTHZ_FROM 0x01
+#define SASL_AUTHZ_TO 0x02
+#define SASL_AUTHZ_AND 0x10
static int authz_policy = SASL_AUTHZ_NONE;
authz_policy = SASL_AUTHZ_FROM;
} else if ( strcasecmp( arg, "to" ) == 0 ) {
authz_policy = SASL_AUTHZ_TO;
- } else if ( strcasecmp( arg, "both" ) == 0 ) {
+ } 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;
}
+int slap_parse_user( struct berval *id, struct berval *user,
+ struct berval *realm, struct berval *mech )
+{
+ char u;
+
+ assert( id );
+ assert( id->bv_val );
+ assert( user );
+ assert( realm );
+ assert( mech );
+
+ 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 = strchr( id->bv_val, ':' );
+ if ( user->bv_val == NULL ) {
+ 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 = strchr( id->bv_val, '.' );
+ if ( mech->bv_val != NULL ) {
+ mech->bv_val[ 0 ] = '\0';
+ mech->bv_val++;
+
+ realm->bv_val = strchr( mech->bv_val, '/' );
+
+ if ( realm->bv_val ) {
+ 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 {
+ mech->bv_len = user->bv_val - mech->bv_val - 1;
+ }
+
+ } else {
+ realm->bv_val = NULL;
+ }
+
+ if ( id->bv_val[ 1 ] != '\0' ) {
+ return LDAP_PROTOCOL_ERROR;
+ }
+
+ if ( mech->bv_val != NULL ) {
+ 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 ( realm->bv_val ) {
+ 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;
+}
+
static int slap_parseURI( Operation *op, struct berval *uri,
struct berval *base, struct berval *nbase,
int *scope, Filter **filter, struct berval *fstr )
"slap_parseURI: parsing %s\n", uri->bv_val, 0, 0 );
#endif
- /* If it does not look like a URI, assume it is a DN */
- if( !strncasecmp( uri->bv_val, "dn:", sizeof("dn:")-1 ) ) {
- bv.bv_val = uri->bv_val + sizeof("dn:")-1;
+ rc = LDAP_PROTOCOL_ERROR;
+ if ( !strncasecmp( uri->bv_val, "dn", sizeof( "dn" ) - 1 ) ) {
+ bv.bv_val = uri->bv_val + sizeof( "dn" ) - 1;
+
+ if ( bv.bv_val[ 0 ] == '.' ) {
+ bv.bv_val++;
+
+ if ( !strncasecmp( bv.bv_val, "exact:", sizeof( "exact:" ) - 1 ) ) {
+ bv.bv_val += sizeof( "exact" ) - 1;
+ *scope = LDAP_X_SCOPE_EXACT;
+
+ } else if ( !strncasecmp( bv.bv_val, "regex:", sizeof( "regex:" ) - 1 ) ) {
+ bv.bv_val += sizeof( "regex" ) - 1;
+ *scope = LDAP_X_SCOPE_REGEX;
+
+ } else if ( !strncasecmp( bv.bv_val, "children:", sizeof( "chldren:" ) - 1 ) ) {
+ bv.bv_val += sizeof( "children" ) - 1;
+ *scope = LDAP_X_SCOPE_CHILDREN;
+
+ } else if ( !strncasecmp( bv.bv_val, "subtree:", sizeof( "subtree:" ) - 1 ) ) {
+ bv.bv_val += sizeof( "subtree" ) - 1;
+ *scope = LDAP_X_SCOPE_SUBTREE;
+
+ } else if ( !strncasecmp( bv.bv_val, "onelevel:", sizeof( "onelevel:" ) - 1 ) ) {
+ bv.bv_val += sizeof( "onelevel" ) - 1;
+ *scope = LDAP_X_SCOPE_ONELEVEL;
+
+ } else {
+ return LDAP_PROTOCOL_ERROR;
+ }
+ }
+
+ if ( bv.bv_val[ 0 ] != ':' ) {
+ return LDAP_PROTOCOL_ERROR;
+ }
+ bv.bv_val++;
+
bv.bv_val += strspn( bv.bv_val, " " );
+ /* jump here in case no type specification was present
+ * and uir was not an URI... HEADS-UP: assuming EXACT */
+is_dn: bv.bv_len = uri->bv_len - (bv.bv_val - uri->bv_val);
+
+ switch ( *scope ) {
+ case LDAP_X_SCOPE_EXACT:
+ case LDAP_X_SCOPE_CHILDREN:
+ case LDAP_X_SCOPE_SUBTREE:
+ case LDAP_X_SCOPE_ONELEVEL:
+ rc = dnNormalize( 0, NULL, NULL, &bv, nbase, op->o_tmpmemctx );
+ if( rc != LDAP_SUCCESS ) {
+ *scope = -1;
+ }
+ break;
-is_dn: bv.bv_len = uri->bv_len - (bv.bv_val - uri->bv_val);
+ case LDAP_X_SCOPE_REGEX:
+ ber_dupbv_x( nbase, &bv, op->o_tmpmemctx );
+ rc = LDAP_SUCCESS;
+ break;
- rc = dnNormalize( 0, NULL, NULL, &bv, nbase, op->o_tmpmemctx );
- if( rc == LDAP_SUCCESS ) {
- *scope = LDAP_SCOPE_BASE;
+ default:
+ *scope = -1;
+ break;
}
- return( rc );
- }
+ return rc;
+
+ } 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 = { 0, NULL },
+ realm = { 0, NULL },
+ mech = { 0, NULL };
+
+ 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 ( mech.bv_val ) {
+ c.c_sasl_bind_mech = mech;
+ } else {
+ c.c_sasl_bind_mech.bv_val = "AUTHZ";
+ c.c_sasl_bind_mech.bv_len = sizeof( "AUTHZ" ) - 1;
+ }
+
+ rc = slap_sasl_getdn( &c, op, user.bv_val, user.bv_len,
+ realm.bv_val, nbase, SLAP_GETDN_AUTHZID );
+
+ if ( rc == LDAP_SUCCESS ) {
+ *scope = LDAP_X_SCOPE_EXACT;
+ }
+
+ return rc;
+ }
+
rc = ldap_url_parse( uri->bv_val, &ludp );
if ( rc == LDAP_URL_ERR_BADSCHEME ) {
+ /* last chance: assume it's a(n exact) DN ... */
bv.bv_val = uri->bv_val;
+ *scope = LDAP_X_SCOPE_EXACT;
goto is_dn;
}
{
/* host part must be empty */
/* attrs and extensions parts must be empty */
- rc = LDAP_PROTOCOL_ERROR;
+ rc = LDAP_PROTOCOL_ERROR;
goto done;
}
} else {
/* Don't free these, return them to caller */
ludp->lud_filter = NULL;
- ludp->lud_dn= NULL;
+ ludp->lud_dn = NULL;
}
ldap_free_urldesc( ludp );
LDAP URI to find the matching LDAP entry, using the pattern matching
strings given in the saslregexp config file directive(s) */
-static int slap_sasl_regexp( struct berval *in, struct berval *out, void *ctx )
+static int slap_sasl_regexp( struct berval *in, struct berval *out,
+ int flags, void *ctx )
{
char *saslname = in->bv_val;
SaslRegexp_t *reg;
#ifdef NEW_LOGGING
LDAP_LOG( TRANSPORT, DETAIL1,
- "slap_sasl2dn: search DN returned more than 1 entry\n", 0, 0, 0 );
+ "slap_sc_sasl2dn: search DN returned more than 1 entry\n", 0, 0, 0 );
#else
Debug( LDAP_DEBUG_TRACE,
- "slap_sasl2dn: search DN returned more than 1 entry\n", 0,0,0 );
+ "slap_sc_sasl2dn: search DN returned more than 1 entry\n", 0, 0, 0 );
#endif
return -1;
}
int rc;
regex_t reg;
smatch_info sm;
- slap_callback cb = { sasl_sc_smatch, NULL };
+ slap_callback cb = { NULL, sasl_sc_smatch, NULL, NULL };
Operation op = {0};
SlapReply rs = {REP_RESULT};
if( rc != LDAP_SUCCESS ) goto CONCLUDED;
/* Massive shortcut: search scope == base */
- if( op.oq_search.rs_scope == LDAP_SCOPE_BASE ) {
+ switch ( op.oq_search.rs_scope ) {
+ case LDAP_SCOPE_BASE:
+ 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;
+
+ if ( d == 0 && op.oq_search.rs_scope == LDAP_X_SCOPE_SUBTREE ) {
+ goto exact_match;
+
+ } else if ( d > 0 ) {
+ struct berval bv;
+
+ 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.oq_search.rs_scope ) {
+ 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;
+ }
+
+ case LDAP_X_SCOPE_REGEX:
rc = regcomp(®, op.o_req_ndn.bv_val,
REG_EXTENDED|REG_ICASE|REG_NOSUB);
if ( rc == 0 ) {
rc = LDAP_INAPPROPRIATE_AUTH;
}
goto CONCLUDED;
+
+ default:
+ break;
}
/* Must run an internal search. */
* entry, return the DN of that one entry.
*/
void slap_sasl2dn( Operation *opx,
- struct berval *saslname, struct berval *sasldn )
+ struct berval *saslname, struct berval *sasldn, int flags )
{
int rc;
- slap_callback cb = { sasl_sc_sasl2dn, NULL };
+ slap_callback cb = { NULL, sasl_sc_sasl2dn, NULL, NULL };
Operation op = {0};
SlapReply rs = {REP_RESULT};
struct berval regout = { 0, NULL };
cb.sc_private = sasldn;
/* Convert the SASL name into a minimal URI */
- if( !slap_sasl_regexp( saslname, ®out, opx->o_tmpmemctx ) ) {
+ if( !slap_sasl_regexp( saslname, ®out, flags, opx->o_tmpmemctx ) ) {
goto FINISHED;
}
op.o_bd = select_backend( &op.o_req_ndn, 0, 1 );
/* Massive shortcut: search scope == base */
- if( op.oq_search.rs_scope == LDAP_SCOPE_BASE ) {
+ switch ( op.oq_search.rs_scope ) {
+ case LDAP_SCOPE_BASE:
+ case LDAP_X_SCOPE_EXACT:
*sasldn = op.o_req_ndn;
op.o_req_ndn.bv_len = 0;
op.o_req_ndn.bv_val = NULL;
+ /* 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:
+ /* correctly parsed, but illegal */
goto FINISHED;
+
+ case LDAP_SCOPE_ONELEVEL:
+ case LDAP_SCOPE_SUBTREE:
+#ifdef LDAP_SCOPE_SUBORDINATE
+ case LDAP_SCOPE_SUBORDINATE:
+#endif
+ /* do a search */
+ break;
+
+ default:
+ /* catch unhandled cases (there shouldn't be) */
+ assert( 0 );
}
#ifdef NEW_LOGGING
if( authz_policy & SASL_AUTHZ_TO ) {
rc = slap_sasl_check_authz( op, authcDN, authzDN,
slap_schema.si_ad_saslAuthzTo, authcDN );
- if( rc == LDAP_SUCCESS ) {
+ if( rc == LDAP_SUCCESS && !(authz_policy & SASL_AUTHZ_AND) ) {
goto DONE;
}
}
projects / openldap / blobdiff