1 /* frontend.c - routines for dealing with frontend */ 2 /* $OpenLDAP: pkg/ldap/servers/slapd/frontend.c,v 1.19.2.6 2008/04/24 08:13:39 hyc Exp $ */ 3 /* This work is part of OpenLDAP Software <http://www.openldap.org/>. 4 * 5 * Copyright 1998-2008 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 /* Portions Copyright (c) 1995 Regents of the University of Michigan. 17 * All rights reserved. 18 * 19 * Redistribution and use in source and binary forms are permitted 20 * provided that this notice is preserved and that due credit is given 21 * to the University of Michigan at Ann Arbor. The name of the University 22 * may not be used to endorse or promote products derived from this 23 * software without specific prior written permission. This software 24 * is provided ``as is'' without express or implied warranty. 25 */ 26 27 28 #include "portable.h" 29 30 #include <stdio.h> 31 32 #include <ac/string.h> 33 #include <ac/socket.h> 34 #include <sys/stat.h> 35 36 #include "slap.h" 37 #include "lutil.h" 38 #include "lber_pvt.h" 39 40 #include "ldap_rq.h" 41 42 static BackendInfo slap_frontendInfo; 43 static BackendDB slap_frontendDB; 44 BackendDB *frontendDB; 45 46 static int 47 fe_entry_get_rw( 48 Operation *op, 49 struct berval *ndn, 50 ObjectClass *oc, 51 AttributeDescription *at, 52 int rw, 53 Entry **e ) 54 { 55 BackendDB *bd; 56 int rc = LDAP_NO_SUCH_OBJECT; 57 58 bd = op->o_bd; 59 op->o_bd = select_backend( ndn, 0 ); 60 if ( op->o_bd != NULL ) { 61 if ( op->o_bd->be_fetch ) { 62 rc = op->o_bd->be_fetch( op, ndn, oc, at, rw, e ); 63 } 64 } 65 op->o_bd = bd; 66 67 return rc; 68 } 69 70 static int 71 fe_entry_release_rw( 72 Operation *op, 73 Entry *e, 74 int rw ) 75 { 76 BackendDB *bd; 77 int rc = LDAP_NO_SUCH_OBJECT; 78 79 bd = op->o_bd; 80 op->o_bd = select_backend( &e->e_nname, 0 ); 81 if ( op->o_bd != NULL ) { 82 if ( op->o_bd->be_release ) { 83 rc = op->o_bd->be_release( op, e, rw ); 84 } 85 } 86 op->o_bd = bd; 87 88 return rc; 89 } 90 91 int 92 frontend_init( void ) 93 { 94 /* data */ 95 frontendDB = &slap_frontendDB; 96 frontendDB->bd_self = frontendDB; 97 98 /* ACLs */ 99 frontendDB->be_dfltaccess = ACL_READ; 100 101 /* limits */ 102 frontendDB->be_def_limit.lms_t_soft = SLAPD_DEFAULT_TIMELIMIT; /* backward compatible limits */ 103 frontendDB->be_def_limit.lms_t_hard = 0; 104 frontendDB->be_def_limit.lms_s_soft = SLAPD_DEFAULT_SIZELIMIT; /* backward compatible limits */ 105 frontendDB->be_def_limit.lms_s_hard = 0; 106 frontendDB->be_def_limit.lms_s_unchecked = -1; /* no limit on unchecked size */ 107 frontendDB->be_def_limit.lms_s_pr = 0; /* page limit */ 108 frontendDB->be_def_limit.lms_s_pr_hide = 0; /* don't hide number of entries left */ 109 frontendDB->be_def_limit.lms_s_pr_total = 0; /* number of total entries returned by pagedResults equal to hard limit */ 110 111 #if 0 112 /* FIXME: do we need this? */ 113 frontendDB->be_pcl_mutexp = &frontendDB->be_pcl_mutex; 114 ldap_pvt_thread_mutex_init( frontendDB->be_pcl_mutexp ); 115 #endif 116 117 /* suffix */ 118 frontendDB->be_suffix = ch_calloc( 2, sizeof( struct berval ) ); 119 ber_str2bv( "", 0, 1, &frontendDB->be_suffix[0] ); 120 BER_BVZERO( &frontendDB->be_suffix[1] ); 121 frontendDB->be_nsuffix = ch_calloc( 2, sizeof( struct berval ) ); 122 ber_str2bv( "", 0, 1, &frontendDB->be_nsuffix[0] ); 123 BER_BVZERO( &frontendDB->be_nsuffix[1] ); 124 125 /* info */ 126 frontendDB->bd_info = &slap_frontendInfo; 127 128 SLAP_BFLAGS(frontendDB) |= SLAP_BFLAG_FRONTEND; 129 130 /* name */ 131 frontendDB->bd_info->bi_type = "frontend"; 132 133 /* known controls */ 134 if ( slap_known_controls ) { 135 int i; 136 137 frontendDB->bd_info->bi_controls = slap_known_controls; 138 139 for ( i = 0; slap_known_controls[ i ]; i++ ) { 140 int cid; 141 142 if ( slap_find_control_id( slap_known_controls[ i ], &cid ) 143 == LDAP_CONTROL_NOT_FOUND ) 144 { 145 assert( 0 ); 146 return -1; 147 } 148 149 frontendDB->bd_info->bi_ctrls[ cid ] = 1; 150 frontendDB->be_ctrls[ cid ] = 1; 151 } 152 } 153 154 /* calls */ 155 frontendDB->bd_info->bi_op_abandon = fe_op_abandon; 156 frontendDB->bd_info->bi_op_add = fe_op_add; 157 frontendDB->bd_info->bi_op_bind = fe_op_bind; 158 frontendDB->bd_info->bi_op_compare = fe_op_compare; 159 frontendDB->bd_info->bi_op_delete = fe_op_delete; 160 frontendDB->bd_info->bi_op_modify = fe_op_modify; 161 frontendDB->bd_info->bi_op_modrdn = fe_op_modrdn; 162 frontendDB->bd_info->bi_op_search = fe_op_search; 163 frontendDB->bd_info->bi_extended = fe_extended; 164 frontendDB->bd_info->bi_operational = fe_aux_operational; 165 frontendDB->bd_info->bi_entry_get_rw = fe_entry_get_rw; 166 frontendDB->bd_info->bi_entry_release_rw = fe_entry_release_rw; 167 frontendDB->bd_info->bi_access_allowed = fe_access_allowed; 168 frontendDB->bd_info->bi_acl_group = fe_acl_group; 169 frontendDB->bd_info->bi_acl_attribute = fe_acl_attribute; 170 171 #if 0 172 /* FIXME: is this too early? */ 173 return backend_startup_one( frontendDB ); 174 #endif 175 176 return 0; 177 } 178 179