]> git.sur5r.net Git - openldap/blobdiff - servers/slapd/back-ldbm/modify.c
Fix -USLAPD_RLOOKUPS
[openldap] / servers / slapd / back-ldbm / modify.c
index 16aeee9d4c88666931a06fad5a1786253a83f503..b5fc2c19a91b719cd2123f2b2f8dbc38cc6aa66b 100644 (file)
 
 #include <ac/string.h>
 #include <ac/socket.h>
+#include <ac/time.h>
 
 #include "slap.h"
 #include "back-ldbm.h"
 #include "proto-back-ldbm.h"
 
-static int     add_values(Entry *e, LDAPMod *mod, char *dn);
-static int     delete_values(Entry *e, LDAPMod *mod, char *dn);
-static int     replace_values(Entry *e, LDAPMod *mod, char *dn);
+static void    add_lastmods(Operation *op, LDAPModList **ml);
 
-int
-ldbm_back_modify(
+
+static void
+add_lastmods( Operation *op, LDAPModList **modlist )
+{
+       char            buf[22];
+       struct berval   bv;
+       struct berval   *bvals[2];
+       LDAPModList             **m;
+       LDAPModList             *tmp;
+       struct tm       *ltm;
+       time_t          currenttime;
+
+       Debug( LDAP_DEBUG_TRACE, "add_lastmods\n", 0, 0, 0 );
+
+       bvals[0] = &bv;
+       bvals[1] = NULL;
+
+       /* remove any attempts by the user to modify these attrs */
+       for ( m = modlist; *m != NULL; m = &(*m)->ml_next ) {
+            if ( oc_check_no_usermod_attr( (*m)->ml_type ) ) {
+                Debug( LDAP_DEBUG_TRACE,
+                                       "add_lastmods: found no user mod attr: %s\n",
+                                       (*m)->ml_type, 0, 0 );
+                tmp = *m;
+                *m = (*m)->ml_next;
+                free( tmp->ml_type );
+                if ( tmp->ml_bvalues != NULL ) {
+                    ber_bvecfree( tmp->ml_bvalues );
+                }
+                free( tmp );
+                if (!*m)
+                    break;
+            }
+        }
+
+       if ( op->o_dn == NULL || op->o_dn[0] == '\0' ) {
+               bv.bv_val = "NULLDN";
+               bv.bv_len = strlen( bv.bv_val );
+       } else {
+               bv.bv_val = op->o_dn;
+               bv.bv_len = strlen( bv.bv_val );
+       }
+       tmp = (LDAPModList *) ch_calloc( 1, sizeof(LDAPModList) );
+       tmp->ml_type = ch_strdup( "modifiersname" );
+       tmp->ml_op = LDAP_MOD_REPLACE;
+       tmp->ml_bvalues = (struct berval **) ch_calloc(2, sizeof(struct berval *));
+       tmp->ml_bvalues[0] = ber_bvdup( &bv );
+       tmp->ml_next = *modlist;
+       *modlist = tmp;
+
+       currenttime = slap_get_time();
+       ldap_pvt_thread_mutex_lock( &gmtime_mutex );
+#ifndef LDAP_LOCALTIME
+       ltm = gmtime( &currenttime );
+       strftime( buf, sizeof(buf), "%Y%m%d%H%M%SZ", ltm );
+#else
+       ltm = localtime( &currenttime );
+       strftime( buf, sizeof(buf), "%y%m%d%H%M%SZ", ltm );
+#endif
+       ldap_pvt_thread_mutex_unlock( &gmtime_mutex );
+
+       bv.bv_val = buf;
+       bv.bv_len = strlen( bv.bv_val );
+       tmp = (LDAPModList *) ch_calloc( 1, sizeof(LDAPModList) );
+       tmp->ml_type = ch_strdup( "modifytimestamp" );
+       tmp->ml_op = LDAP_MOD_REPLACE;
+       tmp->ml_bvalues = (struct berval **) ch_calloc(2, sizeof(struct berval *));
+       tmp->ml_bvalues[0] = ber_bvdup( &bv );
+       tmp->ml_next = *modlist;
+       *modlist = tmp;
+
+}
+
+/* We need this function because of LDAP modrdn. If we do not 
+ * add this there would be a bunch of code replication here 
+ * and there and of course the likelihood of bugs increases.
+ * Juan C. Gomez (gomez@engr.sgi.com) 05/18/99
+ */ 
+
+int ldbm_modify_internal(
     Backend    *be,
     Connection *conn,
     Operation  *op,
     char       *dn,
-    LDAPModList        *modlist
+    LDAPModList        *modlist,
+    Entry      *e 
 )
 {
-       struct ldbminfo *li = (struct ldbminfo *) be->be_private;
-       char            *matched;
+       int err;
+       LDAPMod         *mod;
        LDAPModList     *ml;
-       Entry           *e;
-       int             i, err;
+       Attribute       *a;
 
-       Debug(LDAP_DEBUG_ARGS, "ldbm_back_modify:\n", 0, 0, 0);
+       if ( ((be->be_lastmod == ON)
+             || ((be->be_lastmod == UNDEFINED)&&(global_lastmod == ON)))
+            && (be->be_update_ndn == NULL)) {
 
-       if ( (e = dn2entry_w( be, dn, &matched )) == NULL ) {
-               send_ldap_result( conn, op, LDAP_NO_SUCH_OBJECT, matched,
-                   NULL );
-               if ( matched != NULL ) {
-                       free( matched );
-               }
-               return( -1 );
-       }
+               /* XXX: It may be wrong, it changes mod time even if 
+                * mod fails!
+                */
+               add_lastmods( op, &modlist );
 
-       /* check for deleted */
+       }
 
-       /* lock entry */
 
-       if ( (err = acl_check_modlist( be, conn, op, e, modlist )) != LDAP_SUCCESS ) {
-               send_ldap_result( conn, op, err, NULL, NULL );
-               goto error_return;
+       if ( (err = acl_check_modlist( be, conn, op, e, modlist ))
+            != LDAP_SUCCESS )
+       {
+               send_ldap_result( conn, op, err,
+                       NULL, NULL, NULL, NULL );
+               return -1;
        }
 
        for ( ml = modlist; ml != NULL; ml = ml->ml_next ) {
-               LDAPMod *mod = &ml->ml_mod;
+
+               mod = &ml->ml_mod;
 
                switch ( mod->mod_op & ~LDAP_MOD_BVALUES ) {
                case LDAP_MOD_ADD:
-                       err = add_values( e, mod, op->o_dn );
+                       err = add_values( e, mod, op->o_ndn );
                        break;
 
                case LDAP_MOD_DELETE:
-                       err = delete_values( e, mod, op->o_dn );
+                       err = delete_values( e, mod, op->o_ndn );
                        break;
 
                case LDAP_MOD_REPLACE:
-                       err = replace_values( e, mod, op->o_dn );
+                       /* Need to remove all values from indexes before they
+                        * are lost.
+                        */
+                       if( e->e_attrs
+                           && ((a = attr_find( e->e_attrs, mod->mod_type ))
+                          != NULL) ) {
+
+                           (void) index_change_values( be,
+                                                       mod->mod_type,
+                                                       a->a_vals,
+                                                       e->e_id,
+                                                       __INDEX_DELETE_OP);
+                       }
+
+                       err = replace_values( e, mod, op->o_ndn );
                        break;
+
+               case LDAP_MOD_SOFTADD:
+                       /* Avoid problems in index_add_mods()
+                        * We need to add index if necessary.
+                        */
+                       mod->mod_op = LDAP_MOD_ADD;
+                       if ( (err = add_values( e, mod, op->o_ndn ))
+                               ==  LDAP_TYPE_OR_VALUE_EXISTS ) {
+                               err = LDAP_SUCCESS;
+                               mod->mod_op = LDAP_MOD_SOFTADD;
+                       }
+                       break;
                }
 
                if ( err != LDAP_SUCCESS ) {
                        /* unlock entry, delete from cache */
-                       send_ldap_result( conn, op, err, NULL, NULL );
-                       goto error_return;
+                       send_ldap_result( conn, op, err,
+                               NULL, NULL, NULL, NULL );
+                       return -1;
                }
        }
 
        /* check that the entry still obeys the schema */
        if ( global_schemacheck && oc_schema_check( e ) != 0 ) {
                Debug( LDAP_DEBUG_ANY, "entry failed schema check\n", 0, 0, 0 );
-               send_ldap_result( conn, op, LDAP_OBJECT_CLASS_VIOLATION, NULL, NULL );
-               goto error_return;
+               send_ldap_result( conn, op, LDAP_OBJECT_CLASS_VIOLATION,
+                       NULL, NULL, NULL, NULL );
+               return -1;
        }
 
        /* check for abandon */
-       pthread_mutex_lock( &op->o_abandonmutex );
+       ldap_pvt_thread_mutex_lock( &op->o_abandonmutex );
        if ( op->o_abandon ) {
-               pthread_mutex_unlock( &op->o_abandonmutex );
-               goto error_return;
+               ldap_pvt_thread_mutex_unlock( &op->o_abandonmutex );
+               return -1;
        }
-       pthread_mutex_unlock( &op->o_abandonmutex );
+       ldap_pvt_thread_mutex_unlock( &op->o_abandonmutex );
 
        /* modify indexes */
        if ( index_add_mods( be, modlist, e->e_id ) != 0 ) {
-               send_ldap_result( conn, op, LDAP_OPERATIONS_ERROR, NULL, NULL );
-               goto error_return;
+               send_ldap_result( conn, op, LDAP_OPERATIONS_ERROR,
+                       NULL, NULL, NULL, NULL );
+               return -1;
        }
 
        /* check for abandon */
-       pthread_mutex_lock( &op->o_abandonmutex );
+       ldap_pvt_thread_mutex_lock( &op->o_abandonmutex );
        if ( op->o_abandon ) {
-               pthread_mutex_unlock( &op->o_abandonmutex );
+               ldap_pvt_thread_mutex_unlock( &op->o_abandonmutex );
+               return -1;
+       }
+       ldap_pvt_thread_mutex_unlock( &op->o_abandonmutex );
+
+       return 0;
+
+}/* int ldbm_modify_internal() */
+
+
+int
+ldbm_back_modify(
+    Backend    *be,
+    Connection *conn,
+    Operation  *op,
+    char       *dn,
+    LDAPModList        *modlist
+)
+{
+       struct ldbminfo *li = (struct ldbminfo *) be->be_private;
+       Entry           *matched;
+       Entry           *e;
+       int             manageDSAit = get_manageDSAit( op );
+
+       Debug(LDAP_DEBUG_ARGS, "ldbm_back_modify:\n", 0, 0, 0);
+
+       /* acquire and lock entry */
+       if ( (e = dn2entry_w( be, dn, &matched )) == NULL ) {
+               char* matched_dn = NULL;
+               struct berval **refs = NULL;
+
+               if ( matched != NULL ) {
+                       matched_dn = ch_strdup( matched->e_dn );
+                       refs = is_entry_referral( matched )
+                               ? get_entry_referrals( be, conn, op, matched )
+                               : NULL;
+                       cache_return_entry_r( &li->li_cache, matched );
+               } else {
+                       refs = default_referral;
+               }
+
+               send_ldap_result( conn, op, LDAP_REFERRAL,
+                       matched_dn, NULL, refs, NULL );
+
+               if ( matched != NULL ) {
+                       ber_bvecfree( refs );
+                       free( matched_dn );
+               }
+
+               return( -1 );
+       }
+
+    if ( !manageDSAit && is_entry_referral( e ) ) {
+               /* parent is a referral, don't allow add */
+               /* parent is an alias, don't allow add */
+               struct berval **refs = get_entry_referrals( be,
+                       conn, op, e );
+
+               Debug( LDAP_DEBUG_TRACE, "entry is referral\n", 0,
+                   0, 0 );
+
+               send_ldap_result( conn, op, LDAP_REFERRAL,
+                   e->e_dn, NULL, refs, NULL );
+
+               ber_bvecfree( refs );
+
+               goto error_return;
+       }
+       
+       /* Modify the entry */
+       if ( ldbm_modify_internal( be, conn, op, dn, modlist, e ) != 0 ) {
                goto error_return;
        }
-       pthread_mutex_unlock( &op->o_abandonmutex );
 
        /* change the entry itself */
        if ( id2entry_add( be, e ) != 0 ) {
-               send_ldap_result( conn, op, LDAP_OPERATIONS_ERROR, NULL, NULL );
+               send_ldap_result( conn, op, LDAP_OPERATIONS_ERROR,
+                       NULL, NULL, NULL, NULL );
                goto error_return;
        }
 
-       send_ldap_result( conn, op, LDAP_SUCCESS, NULL, NULL );
+       send_ldap_result( conn, op, LDAP_SUCCESS,
+               NULL, NULL, NULL, NULL );
        cache_return_entry_w( &li->li_cache, e );
        return( 0 );
 
@@ -118,7 +298,7 @@ error_return:;
        return( -1 );
 }
 
-static int
+int
 add_values(
     Entry      *e,
     LDAPMod    *mod,
@@ -146,7 +326,7 @@ add_values(
        return( LDAP_SUCCESS );
 }
 
-static int
+int
 delete_values(
     Entry      *e,
     LDAPMod    *mod,
@@ -187,6 +367,17 @@ delete_values(
                                a->a_vals[k - 1] = a->a_vals[k];
                        }
                        a->a_vals[k - 1] = NULL;
+
+                       /* delete the entire attribute, if no values remain */
+                       if ( a->a_vals[0] == NULL) {
+                               Debug( LDAP_DEBUG_ARGS,
+                                       "removing entire attribute %s\n",
+                                       mod->mod_type, 0, 0 );
+                               if ( attr_delete( &e->e_attrs, mod->mod_type ) ) {
+                                       return LDAP_NO_SUCH_ATTRIBUTE;
+                               }
+                       }
+
                        break;
                }
 
@@ -202,13 +393,18 @@ delete_values(
        return( LDAP_SUCCESS );
 }
 
-static int
+int
 replace_values(
     Entry      *e,
     LDAPMod    *mod,
     char       *dn
 )
 {
+
+       /* XXX: BEFORE YOU GET RID OF PREVIOUS VALUES REMOVE FROM INDEX
+        * FILES
+        */
+
        (void) attr_delete( &e->e_attrs, mod->mod_type );
 
        if ( attr_merge( e, mod->mod_type, mod->mod_bvalues ) != 0 ) {