]> git.sur5r.net Git - openldap/blobdiff - servers/slapd/modify.c
Experiment with busy loop protection...
[openldap] / servers / slapd / modify.c
index 99e31fe033bec6a696287ce17a0da2fbde2dbb05..2089bff88341b9d8b76dfd5964e3547a11b8a072 100644 (file)
@@ -47,7 +47,12 @@ do_modify(
        const char      *text;
        int manageDSAit;
 
+#ifdef NEW_LOGGING
+       LDAP_LOG(( "operation", LDAP_LEVEL_ENTRY,
+                  "do_modify: enter\n" ));
+#else
        Debug( LDAP_DEBUG_TRACE, "do_modify\n", 0, 0, 0 );
+#endif
 
        /*
         * Parse the modify request.  It looks like this:
@@ -69,13 +74,25 @@ do_modify(
         */
 
        if ( ber_scanf( op->o_ber, "{a" /*}*/, &dn ) == LBER_ERROR ) {
+#ifdef NEW_LOGGING
+               LDAP_LOG(( "operation", LDAP_LEVEL_ERR,
+                          "do_modify: ber_scanf failed\n" ));
+#else
                Debug( LDAP_DEBUG_ANY, "do_modify: ber_scanf failed\n", 0, 0, 0 );
+#endif
+
                send_ldap_disconnect( conn, op,
                        LDAP_PROTOCOL_ERROR, "decoding error" );
                return SLAPD_DISCONNECT;
        }
 
+#ifdef NEW_LOGGING
+       LDAP_LOG(( "operation", LDAP_LEVEL_ARGS,
+                  "do_modify: dn (%s)\n", dn ));
+#else
        Debug( LDAP_DEBUG_ARGS, "do_modify: dn (%s)\n", dn, 0, 0 );
+#endif
+
 
        /* collect modifications & save for later */
 
@@ -100,9 +117,16 @@ do_modify(
                switch( mop ) {
                case LDAP_MOD_ADD:
                        if ( (*modtail)->ml_bvalues == NULL ) {
+#ifdef NEW_LOGGING
+                               LDAP_LOG(( "operation", LDAP_LEVEL_ERR,
+                                          "do_modify: modify/add operation (%ld) requires values\n",
+                                          (long)mop ));
+#else
                                Debug( LDAP_DEBUG_ANY,
                                        "do_modify: modify/add operation (%ld) requires values\n",
                                        (long) mop, 0, 0 );
+#endif
+
                                send_ldap_result( conn, op, LDAP_PROTOCOL_ERROR,
                                        NULL, "modify/add operation requires values",
                                        NULL, NULL );
@@ -117,9 +141,16 @@ do_modify(
                        break;
 
                default: {
+#ifdef NEW_LOGGING
+                               LDAP_LOG(( "operation", LDAP_LEVEL_ERR,
+                                          "do_modify: invalid modify operation (%ld)\n",
+                                          (long)mop ));
+#else
                                Debug( LDAP_DEBUG_ANY,
                                        "do_modify: invalid modify operation (%ld)\n",
                                        (long) mop, 0, 0 );
+#endif
+
                                send_ldap_result( conn, op, LDAP_PROTOCOL_ERROR,
                                        NULL, "unrecognized modify operation", NULL, NULL );
                                rc = LDAP_PROTOCOL_ERROR;
@@ -133,33 +164,80 @@ do_modify(
        *modtail = NULL;
 
        if( (rc = get_ctrls( conn, op, 1 )) != LDAP_SUCCESS ) {
+#ifdef NEW_LOGGING
+               LDAP_LOG(( "operation", LDAP_LEVEL_ERR,
+                          "do_modify: get_ctrls failed\n" ));
+#else
                Debug( LDAP_DEBUG_ANY, "do_modify: get_ctrls failed\n", 0, 0, 0 );
+#endif
+
                goto cleanup;
        }
 
        ndn = ch_strdup( dn );
 
        if(     dn_normalize( ndn ) == NULL ) {
+#ifdef NEW_LOGGING
+               LDAP_LOG(( "operation", LDAP_LEVEL_ERR,
+                          "do_modify:  invalid dn (%s)\n", dn ));
+#else
                Debug( LDAP_DEBUG_ANY, "do_modify: invalid dn (%s)\n", dn, 0, 0 );
+#endif
+
                send_ldap_result( conn, op, rc = LDAP_INVALID_DN_SYNTAX, NULL,
                    "invalid DN", NULL, NULL );
                goto cleanup;
        }
 
-       if( ndn == '\0' ) {
+       if( *ndn == '\0' ) {
+#ifdef NEW_LOGGING
+               LDAP_LOG(( "operation", LDAP_LEVEL_ERR,
+                          "do_modify: attempt to modify root DSE.\n" ));
+#else
                Debug( LDAP_DEBUG_ANY, "do_modify: root dse!\n", 0, 0, 0 );
+#endif
+
                send_ldap_result( conn, op, rc = LDAP_UNWILLING_TO_PERFORM,
                        NULL, "modify upon the root DSE not supported", NULL, NULL );
                goto cleanup;
+
+#if defined( SLAPD_SCHEMA_DN )
+       } else if ( strcasecmp( ndn, SLAPD_SCHEMA_DN ) == 0 ) {
+#ifdef NEW_LOGGING
+               LDAP_LOG(( "operation", LDAP_LEVEL_ERR,
+                       "do_modify: attempt to modify subschema subentry.\n" ));
+#else
+               Debug( LDAP_DEBUG_ANY, "do_modify: subschema subentry!\n", 0, 0, 0 );
+#endif
+
+               send_ldap_result( conn, op, rc = LDAP_UNWILLING_TO_PERFORM,
+                       NULL, "modification of subschema subentry not supported",
+                       NULL, NULL );
+               goto cleanup;
+#endif
        }
 
 #ifdef LDAP_DEBUG
+#ifdef NEW_LOGGING
+       LDAP_LOG(( "operation", LDAP_LEVEL_DETAIL1,
+                  "do_modify: modifications:\n" ));
+#else
        Debug( LDAP_DEBUG_ARGS, "modifications:\n", 0, 0, 0 );
+#endif
+
        for ( tmp = modlist; tmp != NULL; tmp = tmp->ml_next ) {
+#ifdef NEW_LOGGING
+               LDAP_LOG(( "operation", LDAP_LEVEL_DETAIL1,
+                          "\t%s:  %s\n", tmp->ml_op == LDAP_MOD_ADD ?
+                          "add" : (tmp->ml_op == LDAP_MOD_DELETE ?
+                                   "delete" : "replace"), tmp->ml_type ));
+#else
                Debug( LDAP_DEBUG_ARGS, "\t%s: %s\n",
                        tmp->ml_op == LDAP_MOD_ADD
                                ? "add" : (tmp->ml_op == LDAP_MOD_DELETE
                                        ? "delete" : "replace"), tmp->ml_type, 0 );
+#endif
+
        }
 #endif
 
@@ -204,17 +282,22 @@ do_modify(
         */
        if ( be->be_modify ) {
                /* do the update here */
+               int repl_user = (be->be_update_ndn != NULL &&
+                       strcmp( be->be_update_ndn, op->o_ndn ) == 0);
 #ifndef SLAPD_MULTIMASTER
-               /* we don't have to check for replicator dn
-                * because we accept each modify request
+               /* Multimaster slapd does not have to check for replicator dn
+                * because it accepts each modify request
                 */
-               if ( be->be_update_ndn == NULL ||
-                       strcmp( be->be_update_ndn, op->o_ndn ) == 0 )
+               if ( be->be_update_ndn == NULL || repl_user )
 #endif
                {
                        int update = be->be_update_ndn != NULL;
                        const char *text;
-                       rc = slap_modlist2mods( modlist, update, &mods, &text );
+                       char textbuf[SLAP_TEXT_BUFLEN];
+                       size_t textlen = sizeof textbuf;
+
+                       rc = slap_modlist2mods( modlist, update, &mods, &text,
+                               textbuf, textlen );
 
                        if( rc != LDAP_SUCCESS ) {
                                send_ldap_result( conn, op, rc,
@@ -223,7 +306,7 @@ do_modify(
                        }
 
                        if ( (be->be_lastmod == ON || (be->be_lastmod == UNDEFINED &&
-                               global_lastmod == ON)) && !update )
+                               global_lastmod == ON)) && !repl_user )
                        {
                                Modifications **modstail;
                                for( modstail = &mods;
@@ -244,8 +327,7 @@ do_modify(
 
                        if ( (*be->be_modify)( be, conn, op, dn, ndn, mods ) == 0 
 #ifdef SLAPD_MULTIMASTER
-                               && ( be->be_update_ndn == NULL ||
-                                       strcmp( be->be_update_ndn, op->o_ndn ) != 0 )
+                               && !repl_user
 #endif
                        ) {
                                /* but we log only the ones not from a replicator user */
@@ -283,7 +365,9 @@ int slap_modlist2mods(
        LDAPModList *ml,
        int update,
        Modifications **mods,
-       const char **text )
+       const char **text,
+       char *textbuf,
+       size_t textlen )
 {
        int rc;
        Modifications **modtail = mods;
@@ -303,6 +387,9 @@ int slap_modlist2mods(
 
                if( rc != LDAP_SUCCESS ) {
                        slap_mods_free( mod );
+                       snprintf( textbuf, textlen, "%s: %s",
+                               ml->ml_type, *text );
+                       *text = textbuf;
                        return rc;
                }
 
@@ -313,7 +400,11 @@ int slap_modlist2mods(
                {
                        /* attribute requires binary transfer */
                        slap_mods_free( mod );
-                       *text = "attribute requires ;binary transfer";
+
+                       snprintf( textbuf, textlen,
+                               "%s: requires ;binary transfer",
+                               ml->ml_type );
+                       *text = textbuf;
                        return LDAP_UNDEFINED_TYPE;
                }
 
@@ -322,14 +413,35 @@ int slap_modlist2mods(
                {
                        /* attribute requires binary transfer */
                        slap_mods_free( mod );
-                       *text = "attribute disallows ;binary transfer";
+                       snprintf( textbuf, textlen,
+                               "%s: disallows ;binary transfer",
+                               ml->ml_type );
+                       *text = textbuf;
                        return LDAP_UNDEFINED_TYPE;
                }
 
                if (!update && is_at_no_user_mod( ad->ad_type )) {
                        /* user modification disallowed */
                        slap_mods_free( mod );
-                       *text = "no user modification allowed";
+                       snprintf( textbuf, textlen,
+                               "%s: no user modification allowed",
+                               ml->ml_type );
+                       *text = textbuf;
+                       return LDAP_CONSTRAINT_VIOLATION;
+               }
+
+               if ( is_at_obsolete( ad->ad_type ) &&
+                       ( mod->sml_op == LDAP_MOD_ADD || ml->ml_bvalues != NULL ) )
+               {
+                       /*
+                        * attribute is obsolete,
+                        * only allow replace/delete with no values
+                        */
+                       slap_mods_free( mod );
+                       snprintf( textbuf, textlen,
+                               "%s: attribute is obsolete",
+                               ml->ml_type );
+                       *text = textbuf;
                        return LDAP_CONSTRAINT_VIOLATION;
                }
 
@@ -342,11 +454,13 @@ int slap_modlist2mods(
                                ad->ad_type->sat_syntax->ssyn_validate;
 
                        if( !validate ) {
-                               Debug( LDAP_DEBUG_TRACE,
-                                       "modlist2mods: no validator for syntax %s\n",
-                                       ad->ad_type->sat_syntax->ssyn_oid, 0, 0 );
                                slap_mods_free( mod );
                                *text = "no validator for syntax";
+                               snprintf( textbuf, textlen,
+                                       "%s: no validator for syntax %s",
+                                       ml->ml_type,
+                                       ad->ad_type->sat_syntax->ssyn_oid );
+                               *text = textbuf;
                                return LDAP_INVALID_SYNTAX;
                        }
 
@@ -358,7 +472,10 @@ int slap_modlist2mods(
 
                                if( rc != 0 ) {
                                        slap_mods_free( mod );
-                                       *text = "value contains invalid data";
+                                       snprintf( textbuf, textlen,
+                                               "%s: value #%ld invalid per syntax",
+                                               ml->ml_type, (long) nvals );
+                                       *text = textbuf;
                                        return LDAP_INVALID_SYNTAX;
                                }
                        }
@@ -371,8 +488,11 @@ int slap_modlist2mods(
                                && nvals > 1 && is_at_single_value( ad->ad_type ))
                        {
                                slap_mods_free( mod );
-                               *text = "multiple values provided";
-                               return LDAP_INVALID_SYNTAX;
+                               snprintf( textbuf, textlen,
+                                       "%s: multiple value provided",
+                                       ml->ml_type );
+                               *text = textbuf;
+                               return LDAP_CONSTRAINT_VIOLATION;
                        }
                }
 
@@ -460,53 +580,3 @@ int slap_mods_opattrs(
        return LDAP_SUCCESS;
 }
 
-
-void
-slap_mod_free(
-       Modification    *mod,
-       int                             freeit
-)
-{
-       ad_free( mod->sm_desc, 1 );
-
-       if ( mod->sm_bvalues != NULL )
-               ber_bvecfree( mod->sm_bvalues );
-
-       if( freeit )
-               free( mod );
-}
-
-void
-slap_mods_free(
-    Modifications      *ml
-)
-{
-       Modifications *next;
-
-       for ( ; ml != NULL; ml = next ) {
-               next = ml->sml_next;
-
-               slap_mod_free( &ml->sml_mod, 0 );
-               free( ml );
-       }
-}
-
-void
-slap_modlist_free(
-    LDAPModList        *ml
-)
-{
-       LDAPModList *next;
-
-       for ( ; ml != NULL; ml = next ) {
-               next = ml->ml_next;
-
-               if (ml->ml_type)
-                       free( ml->ml_type );
-
-               if ( ml->ml_bvalues != NULL )
-                       ber_bvecfree( ml->ml_bvalues );
-
-               free( ml );
-       }
-}