]> git.sur5r.net Git - openldap/blobdiff - servers/slapd/at.c
Cleanup for C++
[openldap] / servers / slapd / at.c
index cc4e5ed7252a65f6afb0fbae03aa484715834c05..854c81b3bca5f3ccfb28eb318874f31f062d8ea2 100644 (file)
@@ -2,7 +2,7 @@
 /* $OpenLDAP$ */
 /* This work is part of OpenLDAP Software <http://www.openldap.org/>.
  *
- * Copyright 1998-2005 The OpenLDAP Foundation.
+ * Copyright 1998-2008 The OpenLDAP Foundation.
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
 #include "slap.h"
 
 
-int is_at_syntax(
-       AttributeType *at,
-       const char *oid )
+const char *
+at_syntax(
+       AttributeType   *at )
 {
-       for( ; at != NULL; at = at->sat_sup ) {
-               if( at->sat_syntax_oid ) {
-                       return ( strcmp( at->sat_syntax_oid, oid ) == 0 );
+       for ( ; at != NULL; at = at->sat_sup ) {
+               if ( at->sat_syntax_oid ) {
+                       return at->sat_syntax_oid;
                }
        }
 
+       assert( 0 );
+
+       return NULL;
+}
+
+int
+is_at_syntax(
+       AttributeType   *at,
+       const char      *oid )
+{
+       const char *syn_oid = at_syntax( at );
+
+       if ( syn_oid ) {
+               return strcmp( syn_oid, oid ) == 0;
+       }
+
        return 0;
 }
 
@@ -58,9 +74,12 @@ struct aindexrec {
 
 static Avlnode *attr_index = NULL;
 static Avlnode *attr_cache = NULL;
-static LDAP_STAILQ_HEAD(ATList, slap_attribute_type) attr_list
+static LDAP_STAILQ_HEAD(ATList, AttributeType) attr_list
        = LDAP_STAILQ_HEAD_INITIALIZER(attr_list);
 
+/* Last hardcoded attribute registered */
+AttributeType *at_sys_tail;
+
 int at_oc_cache;
 
 static int
@@ -110,9 +129,13 @@ at_bvfind( struct berval *name )
 
        air = avl_find( attr_index, name, attr_index_name_cmp );
 
-       if ( air && ( slapMode & SLAP_TOOL_MODE ) && at_oc_cache ) {
-               avl_insert( &attr_cache, (caddr_t) air,
-                       attr_index_cmp, avl_dup_error );
+       if ( air ) {
+               if ( air->air_at->sat_flags & SLAP_AT_DELETED ) {
+                       air = NULL;
+               } else if (( slapMode & SLAP_TOOL_MODE ) && at_oc_cache ) {
+                       avl_insert( &attr_cache, (caddr_t) air,
+                               attr_index_cmp, avl_dup_error );
+               }
        }
 
        return air != NULL ? air->air_at : NULL;
@@ -204,49 +227,107 @@ at_find_in_list(
        return -1;
 }
 
+static void
+at_delete_names( AttributeType *at )
+{
+       char                    **names = at->sat_names;
+
+       while (*names) {
+               struct aindexrec        tmpair, *air;
+
+               ber_str2bv( *names, 0, 0, &tmpair.air_name );
+               tmpair.air_at = at;
+               air = (struct aindexrec *)avl_delete( &attr_index,
+                       (caddr_t)&tmpair, attr_index_cmp );
+               assert( air != NULL );
+               ldap_memfree( air );
+               names++;
+       }
+}
+
+/* Mark the attribute as deleted, remove from list, and remove all its
+ * names from the AVL tree. Leave the OID in the tree.
+ */
 void
-at_destroy( void )
+at_delete( AttributeType *at )
 {
-       AttributeType *a;
-       avl_free(attr_index, ldap_memfree);
+       at->sat_flags |= SLAP_AT_DELETED;
 
-       while( !LDAP_STAILQ_EMPTY(&attr_list) ) {
-               a = LDAP_STAILQ_FIRST(&attr_list);
-               LDAP_STAILQ_REMOVE_HEAD(&attr_list, sat_next);
+       LDAP_STAILQ_REMOVE(&attr_list, at, AttributeType, sat_next);
 
-               if ( a->sat_equality ) {
-                       MatchingRule    *mr;
+       at_delete_names( at );
+}
 
-                       mr = mr_find( a->sat_equality->smr_oid );
-                       assert( mr != NULL );
-                       if ( mr != a->sat_equality ) {
-                               ch_free( a->sat_equality );
-                               a->sat_equality = NULL;
-                       }
+static void
+at_clean( AttributeType *a )
+{
+       if ( a->sat_equality ) {
+               MatchingRule    *mr;
+
+               mr = mr_find( a->sat_equality->smr_oid );
+               assert( mr != NULL );
+               if ( mr != a->sat_equality ) {
+                       ch_free( a->sat_equality );
+                       a->sat_equality = NULL;
                }
+       }
 
-               assert( a->sat_syntax != NULL );
-               if ( a->sat_syntax != NULL ) {
-                       Syntax          *syn;
+       assert( a->sat_syntax != NULL );
+       if ( a->sat_syntax != NULL ) {
+               Syntax          *syn;
 
-                       syn = syn_find( a->sat_syntax->ssyn_oid );
-                       assert( syn != NULL );
-                       if ( syn != a->sat_syntax ) {
-                               ch_free( a->sat_syntax );
-                               a->sat_syntax = NULL;
-                       }
+               syn = syn_find( a->sat_syntax->ssyn_oid );
+               assert( syn != NULL );
+               if ( syn != a->sat_syntax ) {
+                       ch_free( a->sat_syntax );
+                       a->sat_syntax = NULL;
                }
+       }
+
+       if ( a->sat_oidmacro ) {
+               ldap_memfree( a->sat_oidmacro );
+               a->sat_oidmacro = NULL;
+       }
+       if ( a->sat_subtypes ) {
+               ldap_memfree( a->sat_subtypes );
+               a->sat_subtypes = NULL;
+       }
+}
+
+static void
+at_destroy_one( void *v )
+{
+       struct aindexrec *air = v;
+       AttributeType *a = air->air_at;
+
+       at_clean( a );
+       ad_destroy(a->sat_ad);
+       ldap_pvt_thread_mutex_destroy(&a->sat_ad_mutex);
+       ldap_attributetype_free((LDAPAttributeType *)a);
+       ldap_memfree(air);
+}
+
+void
+at_destroy( void )
+{
+       AttributeType *a;
+
+       while( !LDAP_STAILQ_EMPTY(&attr_list) ) {
+               a = LDAP_STAILQ_FIRST(&attr_list);
+               LDAP_STAILQ_REMOVE_HEAD(&attr_list, sat_next);
 
-               if ( a->sat_oidmacro ) ldap_memfree( a->sat_oidmacro );
-               if ( a->sat_subtypes ) ldap_memfree( a->sat_subtypes );
-               ad_destroy(a->sat_ad);
-               ldap_pvt_thread_mutex_destroy(&a->sat_ad_mutex);
-               ldap_attributetype_free((LDAPAttributeType *)a);
+               at_delete_names( a );
        }
 
+       avl_free(attr_index, at_destroy_one);
+
        if ( slap_schema.si_at_undefined ) {
                ad_destroy(slap_schema.si_at_undefined->sat_ad);
        }
+
+       if ( slap_schema.si_at_proxied ) {
+               ad_destroy(slap_schema.si_at_proxied->sat_ad);
+       }
 }
 
 int
@@ -264,7 +345,7 @@ at_next( AttributeType **at )
 {
        assert( at != NULL );
 
-#if 1  /* pedantic check */
+#if 0  /* pedantic check: don't use this */
        {
                AttributeType *tmp = NULL;
 
@@ -334,37 +415,84 @@ at_check_dup(
        return SLAP_SCHERR_ATTR_DUP;
 }
 
+static struct aindexrec *air_old;
+
+static int
+at_dup_error( void *left, void *right )
+{
+       air_old = left;
+       return -1;
+}
 
 static int
 at_insert(
-    AttributeType      *sat,
+    AttributeType      **rat,
+       AttributeType   *prev,
     const char         **err )
 {
        struct aindexrec        *air;
-       char                    **names;
-
+       char                    **names = NULL;
+       AttributeType   *sat = *rat;
 
        if ( sat->sat_oid ) {
                air = (struct aindexrec *)
                        ch_calloc( 1, sizeof(struct aindexrec) );
-               air->air_name.bv_val = sat->sat_oid;
-               air->air_name.bv_len = strlen(sat->sat_oid);
+               ber_str2bv( sat->sat_oid, 0, 0, &air->air_name );
                air->air_at = sat;
+               air_old = NULL;
+
                if ( avl_insert( &attr_index, (caddr_t) air,
-                                attr_index_cmp, avl_dup_error ) )
+                                attr_index_cmp, at_dup_error ) )
                {
                        AttributeType   *old_sat;
                        int             rc;
 
                        *err = sat->sat_oid;
 
-                       old_sat = at_bvfind( &air->air_name );
-                       assert( old_sat != NULL );
-                       rc = at_check_dup( old_sat, sat );
+                       assert( air_old != NULL );
+                       old_sat = air_old->air_at;
+
+                       /* replacing a deleted definition? */
+                       if ( old_sat->sat_flags & SLAP_AT_DELETED ) {
+                               AttributeType tmp;
+                               AttributeDescription *ad;
+                               
+                               /* Keep old oid, free new oid;
+                                * Keep old ads, free new ads;
+                                * Keep old ad_mutex, free new ad_mutex;
+                                * Keep new everything else, free old
+                                */
+                               tmp = *old_sat;
+                               *old_sat = *sat;
+                               old_sat->sat_oid = tmp.sat_oid;
+                               tmp.sat_oid = sat->sat_oid;
+                               old_sat->sat_ad = tmp.sat_ad;
+                               tmp.sat_ad = sat->sat_ad;
+                               old_sat->sat_ad_mutex = tmp.sat_ad_mutex;
+                               tmp.sat_ad_mutex = sat->sat_ad_mutex;
+                               *sat = tmp;
+
+                               /* Check for basic ad pointing at old cname */
+                               for ( ad = old_sat->sat_ad; ad; ad=ad->ad_next ) {
+                                       if ( ad->ad_cname.bv_val == sat->sat_cname.bv_val ) {
+                                               ad->ad_cname = old_sat->sat_cname;
+                                               break;
+                                       }
+                               }
 
-                       ldap_memfree( air );
+                               at_clean( sat );
+                               at_destroy_one( air );
+
+                               air = air_old;
+                               sat = old_sat;
+                               *rat = sat;
+                       } else {
+                               ldap_memfree( air );
+
+                               rc = at_check_dup( old_sat, sat );
 
-                       return rc;
+                               return rc;
+                       }
                }
                /* FIX: temporal consistency check */
                at_bvfind( &air->air_name );
@@ -375,8 +503,7 @@ at_insert(
                while ( *names ) {
                        air = (struct aindexrec *)
                                ch_calloc( 1, sizeof(struct aindexrec) );
-                       air->air_name.bv_val = *names;
-                       air->air_name.bv_len = strlen(*names);
+                       ber_str2bv( *names, 0, 0, &air->air_name );
                        air->air_at = sat;
                        if ( avl_insert( &attr_index, (caddr_t) air,
                                         attr_index_cmp, avl_dup_error ) )
@@ -392,6 +519,29 @@ at_insert(
 
                                ldap_memfree(air);
 
+                               while ( names > sat->sat_names ) {
+                                       struct aindexrec        tmpair;
+
+                                       names--;
+                                       ber_str2bv( *names, 0, 0, &tmpair.air_name );
+                                       tmpair.air_at = sat;
+                                       air = (struct aindexrec *)avl_delete( &attr_index,
+                                               (caddr_t)&tmpair, attr_index_cmp );
+                                       assert( air != NULL );
+                                       ldap_memfree( air );
+                               }
+
+                               if ( sat->sat_oid ) {
+                                       struct aindexrec        tmpair;
+
+                                       ber_str2bv( sat->sat_oid, 0, 0, &tmpair.air_name );
+                                       tmpair.air_at = sat;
+                                       air = (struct aindexrec *)avl_delete( &attr_index,
+                                               (caddr_t)&tmpair, attr_index_cmp );
+                                       assert( air != NULL );
+                                       ldap_memfree( air );
+                               }
+
                                return rc;
                        }
                        /* FIX: temporal consistency check */
@@ -400,7 +550,27 @@ at_insert(
                }
        }
 
-       LDAP_STAILQ_INSERT_TAIL( &attr_list, sat, sat_next );
+       if ( sat->sat_oid ) {
+               slap_ad_undef_promote( sat->sat_oid, sat );
+       }
+
+       names = sat->sat_names;
+       if ( names ) {
+               while ( *names ) {
+                       slap_ad_undef_promote( *names, sat );
+                       names++;
+               }
+       }
+
+       if ( sat->sat_flags & SLAP_AT_HARDCODE ) {
+               prev = at_sys_tail;
+               at_sys_tail = sat;
+       }
+       if ( prev ) {
+               LDAP_STAILQ_INSERT_AFTER( &attr_list, prev, sat, sat_next );
+       } else {
+               LDAP_STAILQ_INSERT_TAIL( &attr_list, sat, sat_next );
+       }
 
        return 0;
 }
@@ -410,18 +580,25 @@ at_add(
        LDAPAttributeType       *at,
        int                     user,
        AttributeType           **rsat,
+       AttributeType   *prev,
        const char              **err )
 {
-       AttributeType   *sat;
-       MatchingRule    *mr;
-       Syntax          *syn;
+       AttributeType   *sat = NULL;
+       MatchingRule    *mr = NULL;
+       Syntax          *syn = NULL;
        int             i;
-       int             code;
-       char    *cname;
-       char    *oid;
-       char    *oidm = NULL;
+       int             code = LDAP_SUCCESS;
+       char            *cname = NULL;
+       char            *oidm = NULL;
+
+       if ( !at->at_oid ) {
+               *err = "";
+               return SLAP_SCHERR_ATTR_INCOMPLETE;
+       }
 
        if ( !OID_LEADCHAR( at->at_oid[0] )) {
+               char    *oid;
+
                /* Expand OID macros */
                oid = oidm_find( at->at_oid );
                if ( !oid ) {
@@ -435,11 +612,14 @@ at_add(
        }
 
        if ( at->at_syntax_oid && !OID_LEADCHAR( at->at_syntax_oid[0] )) {
+               char    *oid;
+
                /* Expand OID macros */
                oid = oidm_find( at->at_syntax_oid );
                if ( !oid ) {
                        *err = at->at_syntax_oid;
-                       return SLAP_SCHERR_OIDM;
+                       code = SLAP_SCHERR_OIDM;
+                       goto error_return;
                }
                if ( oid != at->at_syntax_oid ) {
                        ldap_memfree( at->at_syntax_oid );
@@ -453,36 +633,37 @@ at_add(
                for( i=0; at->at_names[i]; i++ ) {
                        if( !slap_valid_descr( at->at_names[i] ) ) {
                                *err = at->at_names[i];
-                               return SLAP_SCHERR_BAD_DESCR;
+                               code = SLAP_SCHERR_BAD_DESCR;
+                               goto error_return;
                        }
                }
 
                cname = at->at_names[0];
 
-       } else if ( at->at_oid ) {
+       } else {
                cname = at->at_oid;
 
-       } else {
-               *err = "";
-               return SLAP_SCHERR_ATTR_INCOMPLETE;
        }
 
        *err = cname;
 
        if ( !at->at_usage && at->at_no_user_mod ) {
                /* user attribute must be modifable */
-               return SLAP_SCHERR_ATTR_BAD_USAGE;
+               code = SLAP_SCHERR_ATTR_BAD_USAGE;
+               goto error_return;
        }
 
        if ( at->at_collective ) {
                if( at->at_usage ) {
                        /* collective attributes cannot be operational */
-                       return SLAP_SCHERR_ATTR_BAD_USAGE;
+                       code = SLAP_SCHERR_ATTR_BAD_USAGE;
+                       goto error_return;
                }
 
                if( at->at_single_value ) {
                        /* collective attributes cannot be single-valued */
-                       return SLAP_SCHERR_ATTR_BAD_USAGE;
+                       code = SLAP_SCHERR_ATTR_BAD_USAGE;
+                       goto error_return;
                }
        }
 
@@ -573,9 +754,12 @@ at_add(
                        goto error_return;
                }
 
-               if( sat->sat_syntax != NULL && sat->sat_syntax != syn ) {
-                       code = SLAP_SCHERR_ATTR_BAD_SUP;
-                       goto error_return;
+               if ( sat->sat_syntax != NULL && sat->sat_syntax != syn ) {
+                       /* BEWARE: no loop detection! */
+                       if ( syn_is_sup( sat->sat_syntax, syn ) ) {
+                               code = SLAP_SCHERR_ATTR_BAD_SUP;
+                               goto error_return;
+                       }
                }
 
                sat->sat_syntax = syn;
@@ -722,7 +906,7 @@ at_add(
                sat->sat_substr = mr;
        }
 
-       code = at_insert( sat, err );
+       code = at_insert( &sat, prev, err );
        if ( code != 0 ) {
 error_return:;
                if ( sat ) {
@@ -730,6 +914,11 @@ error_return:;
                        ch_free( sat );
                }
 
+               if ( oidm ) {
+                       SLAP_FREE( at->at_oid );
+                       at->at_oid = oidm;
+               }
+
        } else if ( rsat ) {
                *rsat = sat;
        }
@@ -738,6 +927,7 @@ error_return:;
 }
 
 #ifdef LDAP_DEBUG
+#ifdef SLAPD_UNUSED
 static int
 at_index_printnode( void *v_air, void *ignore )
 {
@@ -755,6 +945,7 @@ at_index_print( void )
        (void) avl_apply( attr_index, at_index_printnode, 0, -1, AVL_INORDER );
 }
 #endif
+#endif
 
 void
 at_unparse( BerVarray *res, AttributeType *start, AttributeType *end, int sys )
@@ -770,7 +961,7 @@ at_unparse( BerVarray *res, AttributeType *start, AttributeType *end, int sys )
        /* count the result size */
        i = 0;
        for ( at=start; at; at=LDAP_STAILQ_NEXT(at, sat_next)) {
-               if ( sys && !(at->sat_flags & SLAP_AT_HARDCODE)) continue;
+               if ( sys && !(at->sat_flags & SLAP_AT_HARDCODE)) break;
                i++;
                if ( at == end ) break;
        }
@@ -787,7 +978,7 @@ at_unparse( BerVarray *res, AttributeType *start, AttributeType *end, int sys )
        i = 0;
        for ( at=start; at; at=LDAP_STAILQ_NEXT(at, sat_next)) {
                LDAPAttributeType lat, *latp;
-               if ( sys && !(at->sat_flags & SLAP_AT_HARDCODE)) continue;
+               if ( sys && !(at->sat_flags & SLAP_AT_HARDCODE)) break;
                if ( at->sat_oidmacro ) {
                        lat = at->sat_atype;
                        lat.at_oid = at->sat_oidmacro;
@@ -838,3 +1029,46 @@ at_schema_info( Entry *e )
        }
        return 0;
 }
+
+int
+register_at( char *def, AttributeDescription **rad, int dupok )
+{
+       LDAPAttributeType *at;
+       int code, freeit = 0;
+       const char *err;
+       AttributeDescription *ad = NULL;
+
+       at = ldap_str2attributetype( def, &code, &err, LDAP_SCHEMA_ALLOW_ALL );
+       if ( !at ) {
+               Debug( LDAP_DEBUG_ANY,
+                       "register_at: AttributeType \"%s\": %s, %s\n",
+                               def, ldap_scherr2str(code), err );
+               return code;
+       }
+
+       code = at_add( at, 0, NULL, NULL, &err );
+       if ( code ) {
+               if ( code == SLAP_SCHERR_ATTR_DUP && dupok ) {
+                       freeit = 1;
+
+               } else {
+                       ldap_attributetype_free( at );
+                       Debug( LDAP_DEBUG_ANY,
+                               "register_at: AttributeType \"%s\": %s, %s\n",
+                               def, scherr2str(code), err );
+                       return code;
+               }
+       }
+       code = slap_str2ad( at->at_names[0], &ad, &err );
+       if ( freeit || code ) {
+               ldap_attributetype_free( at );
+       } else {
+               ldap_memfree( at );
+       }
+       if ( code ) {
+               Debug( LDAP_DEBUG_ANY, "register_at: AttributeType \"%s\": %s\n",
+                       def, err, 0 );
+       }
+       if ( rad ) *rad = ad;
+       return code;
+}