git.sur5r.net Git - openldap/blob - servers/slapd/syntax.c

   1 /* syntax.c - routines to manage syntax definitions */
   2 /* $OpenLDAP$ */
   3 /* This work is part of OpenLDAP Software <http://www.openldap.org/>.
   4  *
   5  * Copyright 1998-2004 The OpenLDAP Foundation.
   6  * All rights reserved.
   7  *
   8  * Redistribution and use in source and binary forms, with or without
   9  * modification, are permitted only as authorized by the OpenLDAP
  10  * Public License.
  11  *
  12  * A copy of this license is available in the file LICENSE in the
  13  * top-level directory of the distribution or, alternatively, at
  14  * <http://www.OpenLDAP.org/license.html>.
  15  */
  16
  17 #include "portable.h"
  18
  19 #include <stdio.h>
  20
  21 #include <ac/ctype.h>
  22 #include <ac/string.h>
  23 #include <ac/socket.h>
  24
  25 #include "slap.h"
  26 #include "ldap_pvt.h"
  27
  28 struct sindexrec {
  29         char            *sir_name;
  30         Syntax          *sir_syn;
  31 };
  32
  33 static Avlnode  *syn_index = NULL;
  34 static LDAP_SLIST_HEAD(SyntaxList, slap_syntax) syn_list
  35         = LDAP_SLIST_HEAD_INITIALIZER(&syn_list);
  36
  37 static int
  38 syn_index_cmp(
  39         const void *v_sir1,
  40         const void *v_sir2
  41 )
  42 {
  43         const struct sindexrec *sir1 = v_sir1, *sir2 = v_sir2;
  44         return (strcmp( sir1->sir_name, sir2->sir_name ));
  45 }
  46
  47 static int
  48 syn_index_name_cmp(
  49         const void *name,
  50         const void *sir
  51 )
  52 {
  53         return (strcmp( name, ((const struct sindexrec *)sir)->sir_name ));
  54 }
  55
  56 Syntax *
  57 syn_find( const char *synname )
  58 {
  59         struct sindexrec        *sir = NULL;
  60
  61         if ( (sir = avl_find( syn_index, synname, syn_index_name_cmp )) != NULL ) {
  62                 return( sir->sir_syn );
  63         }
  64         return( NULL );
  65 }
  66
  67 Syntax *
  68 syn_find_desc( const char *syndesc, int *len )
  69 {
  70         Syntax          *synp;
  71
  72         LDAP_SLIST_FOREACH(synp, &syn_list, ssyn_next) {
  73                 if ((*len = dscompare( synp->ssyn_syn.syn_desc, syndesc, '{' /*'}'*/ ))) {
  74                         return synp;
  75                 }
  76         }
  77         return( NULL );
  78 }
  79
  80 void
  81 syn_destroy( void )
  82 {
  83         Syntax *s;
  84
  85         avl_free(syn_index, ldap_memfree);
  86         while( !LDAP_SLIST_EMPTY(&syn_list) ) {
  87                 s = LDAP_SLIST_FIRST(&syn_list);
  88                 LDAP_SLIST_REMOVE_HEAD(&syn_list, ssyn_next);
  89                 ldap_syntax_free((LDAPSyntax *)s);
  90         }
  91 }
  92
  93 static int
  94 syn_insert(
  95     Syntax              *ssyn,
  96     const char          **err
  97 )
  98 {
  99         struct sindexrec        *sir;
 100
 101         LDAP_SLIST_NEXT( ssyn, ssyn_next ) = NULL;
 102         LDAP_SLIST_INSERT_HEAD( &syn_list, ssyn, ssyn_next );
 103
 104         if ( ssyn->ssyn_oid ) {
 105                 sir = (struct sindexrec *)
 106                         SLAP_CALLOC( 1, sizeof(struct sindexrec) );
 107                 if( sir == NULL ) {
 108 #ifdef NEW_LOGGING
 109                         LDAP_LOG( OPERATION, ERR,
 110                                 "syn_insert: SLAP_CALLOC Error\n", 0, 0, 0 );
 111 #else
 112                         Debug( LDAP_DEBUG_ANY, "SLAP_CALLOC Error\n", 0, 0, 0 );
 113 #endif
 114                         return LDAP_OTHER;
 115                 }
 116                 sir->sir_name = ssyn->ssyn_oid;
 117                 sir->sir_syn = ssyn;
 118                 if ( avl_insert( &syn_index, (caddr_t) sir,
 119                                  syn_index_cmp, avl_dup_error ) ) {
 120                         *err = ssyn->ssyn_oid;
 121                         ldap_memfree(sir);
 122                         return SLAP_SCHERR_SYN_DUP;
 123                 }
 124                 /* FIX: temporal consistency check */
 125                 syn_find(sir->sir_name);
 126         }
 127         return 0;
 128 }
 129
 130 int
 131 syn_add(
 132     LDAPSyntax          *syn,
 133     slap_syntax_defs_rec *def,
 134     const char          **err
 135 )
 136 {
 137         Syntax          *ssyn;
 138         int             code;
 139
 140         ssyn = (Syntax *) SLAP_CALLOC( 1, sizeof(Syntax) );
 141         if( ssyn == NULL ) {
 142 #ifdef NEW_LOGGING
 143                 LDAP_LOG( OPERATION, ERR,
 144                         "syn_add: SLAP_CALLOC Error\n", 0, 0, 0 );
 145 #else
 146                 Debug( LDAP_DEBUG_ANY, "SLAP_CALLOC Error\n", 0, 0, 0 );
 147 #endif
 148                 return LDAP_OTHER;
 149         }
 150
 151         AC_MEMCPY( &ssyn->ssyn_syn, syn, sizeof(LDAPSyntax) );
 152
 153         LDAP_SLIST_NEXT(ssyn,ssyn_next) = NULL;
 154
 155         /*
 156          * note: ssyn_bvoid uses the same memory of ssyn_syn.syn_oid;
 157          * ssyn_oidlen is #defined as ssyn_bvoid.bv_len
 158          */
 159         ssyn->ssyn_bvoid.bv_val = ssyn->ssyn_syn.syn_oid;
 160         ssyn->ssyn_oidlen = strlen(syn->syn_oid);
 161         ssyn->ssyn_flags = def->sd_flags;
 162         ssyn->ssyn_validate = def->sd_validate;
 163         ssyn->ssyn_pretty = def->sd_pretty;
 164
 165 #ifdef SLAPD_BINARY_CONVERSION
 166         ssyn->ssyn_ber2str = def->sd_ber2str;
 167         ssyn->ssyn_str2ber = def->sd_str2ber;
 168 #endif
 169
 170         code = syn_insert(ssyn, err);
 171         return code;
 172 }
 173
 174 int
 175 register_syntax(
 176         slap_syntax_defs_rec *def )
 177 {
 178         LDAPSyntax      *syn;
 179         int             code;
 180         const char      *err;
 181
 182         syn = ldap_str2syntax( def->sd_desc, &code, &err, LDAP_SCHEMA_ALLOW_ALL);
 183         if ( !syn ) {
 184 #ifdef NEW_LOGGING
 185                 LDAP_LOG( CONFIG, ERR,
 186                         "register_syntax: Error - %s before %s in %s.\n",
 187                         ldap_scherr2str(code), err, def->sd_desc );
 188 #else
 189                 Debug( LDAP_DEBUG_ANY, "Error in register_syntax: %s before %s in %s\n",
 190                     ldap_scherr2str(code), err, def->sd_desc );
 191 #endif
 192
 193                 return( -1 );
 194         }
 195
 196         code = syn_add( syn, def, &err );
 197
 198         ldap_memfree( syn );
 199
 200         if ( code ) {
 201 #ifdef NEW_LOGGING
 202                 LDAP_LOG( CONFIG, ERR,
 203                         "register_syntax: Error - %s %s in %s\n",
 204                         scherr2str(code), err, def->sd_desc );
 205 #else
 206                 Debug( LDAP_DEBUG_ANY, "Error in register_syntax: %s %s in %s\n",
 207                     scherr2str(code), err, def->sd_desc );
 208 #endif
 209
 210                 return( -1 );
 211         }
 212
 213         return( 0 );
 214 }
 215
 216 int
 217 syn_schema_info( Entry *e )
 218 {
 219         AttributeDescription *ad_ldapSyntaxes = slap_schema.si_ad_ldapSyntaxes;
 220         Syntax          *syn;
 221         struct berval   val;
 222         struct berval   nval;
 223
 224         LDAP_SLIST_FOREACH(syn, &syn_list, ssyn_next ) {
 225                 if ( ! syn->ssyn_validate ) {
 226                         /* skip syntaxes without validators */
 227                         continue;
 228                 }
 229                 if ( syn->ssyn_flags & SLAP_SYNTAX_HIDE ) {
 230                         /* hide syntaxes */
 231                         continue;
 232                 }
 233
 234                 if ( ldap_syntax2bv( &syn->ssyn_syn, &val ) == NULL ) {
 235                         return -1;
 236                 }
 237 #if 0
 238 #ifdef NEW_LOGGING
 239                 LDAP_LOG( config, ENTRY,
 240                            "syn_schema_info: Merging syn [%ld] %s\n",
 241                            (long)val.bv_len, val.bv_val, 0 );
 242 #else
 243                 Debug( LDAP_DEBUG_TRACE, "Merging syn [%ld] %s\n",
 244                (long) val.bv_len, val.bv_val, 0 );
 245 #endif
 246 #endif
 247
 248                 nval.bv_val = syn->ssyn_oid;
 249                 nval.bv_len = strlen(syn->ssyn_oid);
 250
 251                 if( attr_merge_one( e, ad_ldapSyntaxes, &val, &nval ) )
 252                 {
 253                         return -1;
 254                 }
 255                 ldap_memfree( val.bv_val );
 256         }
 257         return 0;
 258 }
 259