/* $OpenLDAP$ */
/* 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.
*
#include <ac/stdlib.h>
#include <ac/string.h>
+#include <ac/ctype.h>
#include "slap.h"
#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
* 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}
+ * in matching DN values in authz{To|From}
* attributes.
* dn: for backwards compatibility reasons, the value
* is treated as a regular expression, and thus
static int nSaslRegexp = 0;
static SaslRegexp_t *SaslRegexp = NULL;
+#ifdef SLAP_SASL_REWRITE
+#include "rewrite.h"
+struct rewrite_info *sasl_rwinfo = NULL;
+#define AUTHID_CONTEXT "authid"
+#endif /* SLAP_SASL_REWRITE */
+
/* 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;
}
char u;
assert( id );
- assert( id->bv_val );
+ assert( !BER_BVISNULL( id ) );
assert( user );
assert( realm );
assert( mech );
u = id->bv_val[ 0 ];
- assert( u == 'u' || u == 'U' );
+ 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 ) {
+ if ( BER_BVISNULL( user ) ) {
return LDAP_PROTOCOL_ERROR;
}
user->bv_val[ 0 ] = '\0';
user->bv_len = id->bv_len - ( user->bv_val - id->bv_val );
mech->bv_val = strchr( id->bv_val, '.' );
- if ( mech->bv_val != NULL ) {
+ if ( !BER_BVISNULL( mech ) ) {
mech->bv_val[ 0 ] = '\0';
mech->bv_val++;
- realm->bv_val = strchr( id->bv_val, '/' );
+ realm->bv_val = strchr( mech->bv_val, '/' );
- if ( realm->bv_val ) {
+ 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 {
}
} else {
- realm->bv_val = NULL;
+ BER_BVZERO( realm );
}
if ( id->bv_val[ 1 ] != '\0' ) {
return LDAP_PROTOCOL_ERROR;
}
- if ( mech->bv_val != NULL ) {
+ 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 ( realm->bv_val ) {
+ 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;
}
- if ( user->bv_val > id->bv_val + 2 ) {
- user->bv_val -= 2;
- user->bv_len += 2;
- user->bv_val[ 0 ] = u;
- user->bv_val[ 1 ] = ':';
- }
+ /* leave "u:" before user */
+ user->bv_val -= 2;
+ user->bv_len += 2;
+ user->bv_val[ 0 ] = u;
+ user->bv_val[ 1 ] = ':';
return LDAP_SUCCESS;
}
int rc;
LDAPURLDesc *ludp;
- assert( uri != NULL && uri->bv_val != NULL );
- base->bv_val = NULL;
- base->bv_len = 0;
- nbase->bv_val = NULL;
- nbase->bv_len = 0;
- fstr->bv_val = NULL;
- fstr->bv_len = 0;
+ assert( uri != NULL && !BER_BVISNULL( uri ) );
+ BER_BVZERO( base );
+ BER_BVZERO( nbase );
+ BER_BVZERO( fstr );
*scope = -1;
*filter = NULL;
#endif
rc = LDAP_PROTOCOL_ERROR;
- if ( !strncasecmp( uri->bv_val, "dn", sizeof( "dn" ) - 1 ) ) {
- bv.bv_val = uri->bv_val + sizeof( "dn" ) - 1;
+ 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:", sizeof( "exact:" ) - 1 ) ) {
- bv.bv_val += sizeof( "exact" ) - 1;
+ 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:", sizeof( "regex:" ) - 1 ) ) {
- bv.bv_val += sizeof( "regex" ) - 1;
+ } 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:", sizeof( "chldren:" ) - 1 ) ) {
- bv.bv_val += sizeof( "children" ) - 1;
+ } else if ( !strncasecmp( bv.bv_val, "children:", STRLENOF( "chldren:" ) ) ) {
+ bv.bv_val += STRLENOF( "children:" );
*scope = LDAP_X_SCOPE_CHILDREN;
- } else if ( !strncasecmp( bv.bv_val, "subtree:", sizeof( "subtree:" ) - 1 ) ) {
- bv.bv_val += sizeof( "subtree" ) - 1;
+ } 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;
}
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;
{
Connection c = *op->o_conn;
char buf[ SLAP_LDAPDN_MAXLEN ];
- struct berval id = { uri->bv_len, (char *)buf },
- user = { 0, NULL },
- realm = { 0, NULL },
- mech = { 0, NULL };
+ 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 );
return rc;
}
- if ( mech.bv_val ) {
+ if ( !BER_BVISNULL( &mech ) ) {
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;
+ BER_BVSTR( &c.c_sasl_bind_mech, "AUTHZ" );
}
- rc = slap_sasl_getdn( &c, op, user.bv_val, user.bv_len,
+ rc = slap_sasl_getdn( &c, op, &user,
realm.bv_val, nbase, SLAP_GETDN_AUTHZID );
if ( rc == LDAP_SUCCESS ) {
done:
if( rc != LDAP_SUCCESS ) {
if( *filter ) filter_free_x( op, *filter );
- base->bv_val = NULL;
- base->bv_len = 0;
- fstr->bv_val = NULL;
- fstr->bv_len = 0;
+ BER_BVZERO( base );
+ BER_BVZERO( fstr );
} else {
/* Don't free these, return them to caller */
ludp->lud_filter = NULL;
return( LDAP_SUCCESS );
}
+#ifdef SLAP_SASL_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 );
+ }
+
+ /* 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;
+ }
+
+ 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 *newreplace, *p;
+ char *argvRule[] = { "rewriteRule", NULL, NULL, "@", NULL };
+
+ /* init at first call */
+ if ( sasl_rwinfo == NULL ) {
+ char *argvEngine[] = { "rewriteEngine", "on", NULL };
+ char *argvContext[] = { "rewriteContext", NULL, NULL };
+ char *argvFirstRule[] = { "rewriteRule", ".*",
+ "%{>" AUTHID_CONTEXT "(%0)}", ":", 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;
+ }
+ }
+
+ newreplace = ch_strdup( replace );
+
+ for (p = strchr( newreplace, '$' ); p; p = strchr( p + 1, '$' ) ) {
+ if ( isdigit( p[1] ) ) {
+ p[0] = '%';
+ } else {
+ p++;
+ }
+ }
+
+ argvRule[1] = (char *)match;
+ argvRule[2] = newreplace;
+ rc = rewrite_parse( sasl_rwinfo, fname, lineno, 4, argvRule );
+ ch_free( newreplace );
+
+ return rc;
+}
+#endif /* SLAP_SASL_REWRITE */
+
int slap_sasl_regexp_config( const char *match, const char *replace )
{
+#ifdef SLAP_SASL_REWRITE
+ return slap_sasl_regexp_rewrite_config( "sasl-regexp", 0,
+ match, replace, AUTHID_CONTEXT );
+#else /* ! SLAP_SASL_REWRITE */
int rc;
SaslRegexp_t *reg;
nSaslRegexp++;
return( LDAP_SUCCESS );
+#endif /* ! SLAP_SASL_REWRITE */
}
-
/* Perform replacement on regexp matches */
static void slap_sasl_rx_exp(
const char *rep,
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 )
{
+#ifdef SLAP_SASL_REWRITE
+ const char *context = AUTHID_CONTEXT;
+
+ if ( sasl_rwinfo == NULL || BER_BVISNULL( in ) ) {
+ return 0;
+ }
+
+ /* 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 );
+ free( val );
+ } else {
+ ber_dupbv_x( out, in, ctx );
+ }
+#ifdef NEW_LOGGING
+ LDAP_LOG( BACK_LDAP, DETAIL1,
+ "[rw] %s: \"%s\" -> \"%s\"\n",
+ context, in->bv_val, out->bv_val );
+#else /* !NEW_LOGGING */
+ Debug( LDAP_DEBUG_ARGS,
+ "[rw] %s: \"%s\" -> \"%s\"\n",
+ context, in->bv_val, out->bv_val );
+#endif /* !NEW_LOGGING */
+ return 1;
+
+ case REWRITE_REGEXEC_UNWILLING:
+ case REWRITE_REGEXEC_ERR:
+ default:
+ return 0;
+ }
+
+#else /* ! SLAP_SASL_REWRITE */
char *saslname = in->bv_val;
SaslRegexp_t *reg;
regmatch_t sr_strings[SASLREGEX_REPLACE]; /* strings matching $1,$2 ... */
#ifdef NEW_LOGGING
LDAP_LOG( TRANSPORT, ENTRY,
"slap_sasl_regexp: converted SASL name to %s\n",
- out->bv_len ? out->bv_val : "", 0, 0 );
+ BER_BVISEMPTY( out ) ? "" : out->bv_val, 0, 0 );
#else
Debug( LDAP_DEBUG_TRACE,
"slap_sasl_regexp: converted SASL name to %s\n",
- out->bv_len ? out->bv_val : "", 0, 0 );
+ BER_BVISEMPTY( out ) ? "" : out->bv_val, 0, 0 );
#endif
return( 1 );
+#endif /* ! SLAP_SASL_REWRITE */
}
/* This callback actually does some work...*/
if (rs->sr_type != REP_SEARCH) return 0;
/* We only want to be called once */
- if( ndn->bv_val ) {
+ if ( !BER_BVISNULL( ndn ) ) {
o->o_tmpfree(ndn->bv_val, o->o_tmpmemctx);
- ndn->bv_val = NULL;
+ BER_BVZERO( ndn );
#ifdef NEW_LOGGING
LDAP_LOG( TRANSPORT, DETAIL1,
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;
goto exact_match;
} else if ( d > 0 ) {
- struct berval bv = { op.o_req_ndn.bv_len, assertDN->bv_val + d };
+ 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 ) ) {
- rc = LDAP_SUCCESS;
+ switch ( op.oq_search.rs_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;
op.o_conn = opx->o_conn;
op.o_connid = opx->o_connid;
op.o_req_dn = op.o_req_ndn;
+ op.oq_search.rs_slimit = 1;
+ op.oq_search.rs_tlimit = -1;
op.o_bd->be_search( &op, &rs );
/* Check if the *assertDN matches any **vals */
if( vals != NULL ) {
- for( i=0; vals[i].bv_val != NULL; i++ ) {
+ for( i=0; !BER_BVISNULL( &vals[i] ); i++ ) {
rc = slap_sasl_match( op, &vals[i], assertDN, authc );
if ( rc == LDAP_SUCCESS ) goto COMPLETE;
}
* 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 = { NULL, sasl_sc_sasl2dn, NULL, NULL };
Operation op = {0};
SlapReply rs = {REP_RESULT};
- struct berval regout = { 0, NULL };
+ struct berval regout = BER_BVNULL;
#ifdef NEW_LOGGING
LDAP_LOG( TRANSPORT, ENTRY,
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;
}
rc = slap_parseURI( opx, ®out, &op.o_req_dn,
&op.o_req_ndn, &op.oq_search.rs_scope, &op.oq_search.rs_filter,
&op.ors_filterstr );
- if( regout.bv_val ) sl_free( regout.bv_val, opx->o_tmpmemctx );
- if( rc != LDAP_SUCCESS ) {
+ if ( !BER_BVISNULL( ®out ) ) sl_free( regout.bv_val, opx->o_tmpmemctx );
+ if ( rc != LDAP_SUCCESS ) {
goto FINISHED;
}
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;
+ 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:
/* 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;
#endif
op.oq_search.rs_deref = LDAP_DEREF_NEVER;
op.oq_search.rs_slimit = 1;
+ op.oq_search.rs_tlimit = -1;
op.oq_search.rs_attrsonly = 1;
- op.o_req_dn = op.o_req_ndn;
+ /* use req_ndn as req_dn instead of non-pretty base of uri */
+ if( !BER_BVISNULL( &op.o_req_dn ) ) ch_free( op.o_req_dn.bv_val );
+ ber_dupbv_x( &op.o_req_dn, &op.o_req_ndn, op.o_tmpmemctx );
op.o_bd->be_search( &op, &rs );
FINISHED:
- if( sasldn->bv_len ) {
+ if( !BER_BVISEMPTY( sasldn ) ) {
opx->o_conn->c_authz_backend = op.o_bd;
}
- if( op.o_req_dn.bv_len ) ch_free( op.o_req_dn.bv_val );
- if( op.o_req_ndn.bv_len ) sl_free( op.o_req_ndn.bv_val, opx->o_tmpmemctx );
+ if( !BER_BVISNULL( &op.o_req_dn ) ) sl_free( op.o_req_dn.bv_val, opx->o_tmpmemctx );
+ if( !BER_BVISNULL( &op.o_req_ndn ) ) sl_free( op.o_req_ndn.bv_val, opx->o_tmpmemctx );
if( op.oq_search.rs_filter ) filter_free_x( opx, op.oq_search.rs_filter );
- if( op.ors_filterstr.bv_len ) ch_free( op.ors_filterstr.bv_val );
+ if( !BER_BVISNULL( &op.ors_filterstr ) ) ch_free( op.ors_filterstr.bv_val );
#ifdef NEW_LOGGING
LDAP_LOG( TRANSPORT, ENTRY,
"slap_sasl2dn: Converted SASL name to %s\n",
- sasldn->bv_len ? sasldn->bv_val : "<nothing>", 0, 0 );
+ !BER_BVISEMPTY( sasldn ) ? sasldn->bv_val : "<nothing>", 0, 0 );
#else
Debug( LDAP_DEBUG_TRACE, "<==slap_sasl2dn: Converted SASL name to %s\n",
- sasldn->bv_len ? sasldn->bv_val : "<nothing>", 0, 0 );
+ !BER_BVISEMPTY( sasldn ) ? sasldn->bv_val : "<nothing>", 0, 0 );
#endif
return;
}
/* Allow the manager to authorize as any DN. */
- if( op->o_conn->c_authz_backend && be_isroot( op->o_conn->c_authz_backend, authcDN )) {
+ if( op->o_conn->c_authz_backend &&
+ be_isroot_dn( op->o_conn->c_authz_backend, authcDN ))
+ {
rc = LDAP_SUCCESS;
goto DONE;
}
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