/* $NetBSD: dynlist.c,v 1.1.1.7.6.1 2019/08/10 06:17:21 martin Exp $ */ /* dynlist.c - dynamic list overlay */ /* $OpenLDAP$ */ /* This work is part of OpenLDAP Software . * * Copyright 2003-2019 The OpenLDAP Foundation. * Portions Copyright 2004-2005 Pierangelo Masarati. * Portions Copyright 2008 Emmanuel Dreyfus. * All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted only as authorized by the OpenLDAP * Public License. * * A copy of this license is available in the file LICENSE in the * top-level directory of the distribution or, alternatively, at * . */ /* ACKNOWLEDGEMENTS: * This work was initially developed by Pierangelo Masarati * for SysNet s.n.c., for inclusion in OpenLDAP Software. */ #include __RCSID("$NetBSD: dynlist.c,v 1.1.1.7.6.1 2019/08/10 06:17:21 martin Exp $"); #include "portable.h" #ifdef SLAPD_OVER_DYNLIST #if SLAPD_OVER_DYNGROUP != SLAPD_MOD_STATIC #define TAKEOVER_DYNGROUP #endif #include #include #include "slap.h" #include "config.h" #include "lutil.h" static AttributeDescription *ad_dgIdentity, *ad_dgAuthz; typedef struct dynlist_map_t { AttributeDescription *dlm_member_ad; AttributeDescription *dlm_mapped_ad; struct dynlist_map_t *dlm_next; } dynlist_map_t; typedef struct dynlist_info_t { ObjectClass *dli_oc; AttributeDescription *dli_ad; struct dynlist_map_t *dli_dlm; struct berval dli_uri; LDAPURLDesc *dli_lud; struct berval dli_uri_nbase; Filter *dli_uri_filter; struct berval dli_default_filter; struct dynlist_info_t *dli_next; } dynlist_info_t; #define DYNLIST_USAGE \ "\"dynlist-attrset [uri] [[:] ...]\": " static dynlist_info_t * dynlist_is_dynlist_next( Operation *op, SlapReply *rs, dynlist_info_t *old_dli ) { slap_overinst *on = (slap_overinst *)op->o_bd->bd_info; dynlist_info_t *dli; Attribute *a; if ( old_dli == NULL ) { dli = (dynlist_info_t *)on->on_bi.bi_private; } else { dli = old_dli->dli_next; } a = attrs_find( rs->sr_entry->e_attrs, slap_schema.si_ad_objectClass ); if ( a == NULL ) { /* FIXME: objectClass must be present; for non-storage * backends, like back-ldap, it needs to be added * to the requested attributes */ return NULL; } for ( ; dli; dli = dli->dli_next ) { if ( dli->dli_lud != NULL ) { /* check base and scope */ if ( !BER_BVISNULL( &dli->dli_uri_nbase ) && !dnIsSuffixScope( &rs->sr_entry->e_nname, &dli->dli_uri_nbase, dli->dli_lud->lud_scope ) ) { continue; } /* check filter */ if ( dli->dli_uri_filter && test_filter( op, rs->sr_entry, dli->dli_uri_filter ) != LDAP_COMPARE_TRUE ) { continue; } } if ( attr_valfind( a, SLAP_MR_ATTRIBUTE_VALUE_NORMALIZED_MATCH | SLAP_MR_ASSERTED_VALUE_NORMALIZED_MATCH, &dli->dli_oc->soc_cname, NULL, op->o_tmpmemctx ) == 0 ) { return dli; } } return NULL; } static int dynlist_make_filter( Operation *op, Entry *e, const char *url, struct berval *oldf, struct berval *newf ) { slap_overinst *on = (slap_overinst *)op->o_bd->bd_info; dynlist_info_t *dli = (dynlist_info_t *)on->on_bi.bi_private; char *ptr; int needBrackets = 0; assert( oldf != NULL ); assert( newf != NULL ); assert( !BER_BVISNULL( oldf ) ); assert( !BER_BVISEMPTY( oldf ) ); if ( oldf->bv_val[0] != '(' ) { Debug( LDAP_DEBUG_ANY, "%s: dynlist, DN=\"%s\": missing brackets in URI=\"%s\" filter\n", op->o_log_prefix, e->e_name.bv_val, url ); needBrackets = 2; } newf->bv_len = STRLENOF( "(&(!(objectClass=" "))" ")" ) + dli->dli_oc->soc_cname.bv_len + oldf->bv_len + needBrackets; newf->bv_val = op->o_tmpalloc( newf->bv_len + 1, op->o_tmpmemctx ); if ( newf->bv_val == NULL ) { return -1; } ptr = lutil_strcopy( newf->bv_val, "(&(!(objectClass=" ); ptr = lutil_strcopy( ptr, dli->dli_oc->soc_cname.bv_val ); ptr = lutil_strcopy( ptr, "))" ); if ( needBrackets ) *ptr++ = '('; ptr = lutil_strcopy( ptr, oldf->bv_val ); if ( needBrackets ) *ptr++ = ')'; ptr = lutil_strcopy( ptr, ")" ); newf->bv_len = ptr - newf->bv_val; return 0; } /* dynlist_sc_update() callback info set by dynlist_prepare_entry() */ typedef struct dynlist_sc_t { dynlist_info_t *dlc_dli; Entry *dlc_e; } dynlist_sc_t; static int dynlist_sc_update( Operation *op, SlapReply *rs ) { Entry *e; Attribute *a; int opattrs, userattrs; AccessControlState acl_state = ACL_STATE_INIT; dynlist_sc_t *dlc; dynlist_map_t *dlm; if ( rs->sr_type != REP_SEARCH ) { return 0; } dlc = (dynlist_sc_t *)op->o_callback->sc_private; e = dlc->dlc_e; assert( e != NULL ); assert( rs->sr_entry != NULL ); /* test access to entry */ if ( !access_allowed( op, rs->sr_entry, slap_schema.si_ad_entry, NULL, ACL_READ, NULL ) ) { goto done; } /* if there is only one member_ad, and it's not mapped, * consider it as old-style member listing */ dlm = dlc->dlc_dli->dli_dlm; if ( dlm && dlm->dlm_mapped_ad == NULL && dlm->dlm_next == NULL ) { /* if access allowed, try to add values, emulating permissive * control to silently ignore duplicates */ if ( access_allowed( op, rs->sr_entry, slap_schema.si_ad_entry, NULL, ACL_READ, NULL ) ) { Modification mod; const char *text = NULL; char textbuf[1024]; struct berval vals[ 2 ], nvals[ 2 ]; vals[ 0 ] = rs->sr_entry->e_name; BER_BVZERO( &vals[ 1 ] ); nvals[ 0 ] = rs->sr_entry->e_nname; BER_BVZERO( &nvals[ 1 ] ); mod.sm_op = LDAP_MOD_ADD; mod.sm_desc = dlm->dlm_member_ad; mod.sm_type = dlm->dlm_member_ad->ad_cname; mod.sm_values = vals; mod.sm_nvalues = nvals; mod.sm_numvals = 1; (void)modify_add_values( e, &mod, /* permissive */ 1, &text, textbuf, sizeof( textbuf ) ); } goto done; } opattrs = SLAP_OPATTRS( rs->sr_attr_flags ); userattrs = SLAP_USERATTRS( rs->sr_attr_flags ); for ( a = rs->sr_entry->e_attrs; a != NULL; a = a->a_next ) { BerVarray vals, nvals = NULL; int i, j, is_oc = a->a_desc == slap_schema.si_ad_objectClass; /* if attribute is not requested, skip it */ if ( rs->sr_attrs == NULL ) { if ( is_at_operational( a->a_desc->ad_type ) ) { continue; } } else { if ( is_at_operational( a->a_desc->ad_type ) ) { if ( !opattrs && !ad_inlist( a->a_desc, rs->sr_attrs ) ) { continue; } } else { if ( !userattrs && !ad_inlist( a->a_desc, rs->sr_attrs ) ) { continue; } } } /* test access to attribute */ if ( op->ors_attrsonly ) { if ( !access_allowed( op, rs->sr_entry, a->a_desc, NULL, ACL_READ, &acl_state ) ) { continue; } } /* single-value check: keep first only */ if ( is_at_single_value( a->a_desc->ad_type ) ) { if ( attr_find( e->e_attrs, a->a_desc ) != NULL ) { continue; } } /* test access to attribute */ i = a->a_numvals; vals = op->o_tmpalloc( ( i + 1 ) * sizeof( struct berval ), op->o_tmpmemctx ); if ( a->a_nvals != a->a_vals ) { nvals = op->o_tmpalloc( ( i + 1 ) * sizeof( struct berval ), op->o_tmpmemctx ); } for ( i = 0, j = 0; !BER_BVISNULL( &a->a_vals[i] ); i++ ) { if ( is_oc ) { ObjectClass *soc = oc_bvfind( &a->a_vals[i] ); if ( soc->soc_kind == LDAP_SCHEMA_STRUCTURAL ) { continue; } } if ( access_allowed( op, rs->sr_entry, a->a_desc, &a->a_nvals[i], ACL_READ, &acl_state ) ) { vals[j] = a->a_vals[i]; if ( nvals ) { nvals[j] = a->a_nvals[i]; } j++; } } /* if access allowed, try to add values, emulating permissive * control to silently ignore duplicates */ if ( j != 0 ) { Modification mod; const char *text = NULL; char textbuf[1024]; dynlist_map_t *dlm; AttributeDescription *ad; BER_BVZERO( &vals[j] ); if ( nvals ) { BER_BVZERO( &nvals[j] ); } ad = a->a_desc; for ( dlm = dlc->dlc_dli->dli_dlm; dlm; dlm = dlm->dlm_next ) { if ( dlm->dlm_member_ad == a->a_desc ) { if ( dlm->dlm_mapped_ad ) { ad = dlm->dlm_mapped_ad; } break; } } mod.sm_op = LDAP_MOD_ADD; mod.sm_desc = ad; mod.sm_type = ad->ad_cname; mod.sm_values = vals; mod.sm_nvalues = nvals; mod.sm_numvals = j; (void)modify_add_values( e, &mod, /* permissive */ 1, &text, textbuf, sizeof( textbuf ) ); } op->o_tmpfree( vals, op->o_tmpmemctx ); if ( nvals ) { op->o_tmpfree( nvals, op->o_tmpmemctx ); } } done:; if ( rs->sr_flags & REP_ENTRY_MUSTBEFREED ) { entry_free( rs->sr_entry ); rs->sr_entry = NULL; rs->sr_flags &= ~REP_ENTRY_MASK; } return 0; } static int dynlist_prepare_entry( Operation *op, SlapReply *rs, dynlist_info_t *dli ) { Attribute *a, *id = NULL; slap_callback cb = { 0 }; Operation o = *op; struct berval *url; Entry *e; int opattrs, userattrs; dynlist_sc_t dlc = { 0 }; dynlist_map_t *dlm; a = attrs_find( rs->sr_entry->e_attrs, dli->dli_ad ); if ( a == NULL ) { /* FIXME: error? */ return SLAP_CB_CONTINUE; } opattrs = SLAP_OPATTRS( rs->sr_attr_flags ); userattrs = SLAP_USERATTRS( rs->sr_attr_flags ); /* Don't generate member list if it wasn't requested */ for ( dlm = dli->dli_dlm; dlm; dlm = dlm->dlm_next ) { AttributeDescription *ad = dlm->dlm_mapped_ad ? dlm->dlm_mapped_ad : dlm->dlm_member_ad; if ( userattrs || ad_inlist( ad, rs->sr_attrs ) ) break; } if ( dli->dli_dlm && !dlm ) return SLAP_CB_CONTINUE; if ( ad_dgIdentity && ( id = attrs_find( rs->sr_entry->e_attrs, ad_dgIdentity ))) { Attribute *authz = NULL; /* if not rootdn and dgAuthz is present, * check if user can be authorized as dgIdentity */ if ( ad_dgAuthz && !BER_BVISEMPTY( &id->a_nvals[0] ) && !be_isroot( op ) && ( authz = attrs_find( rs->sr_entry->e_attrs, ad_dgAuthz ) ) ) { if ( slap_sasl_matches( op, authz->a_nvals, &o.o_ndn, &o.o_ndn ) != LDAP_SUCCESS ) { return SLAP_CB_CONTINUE; } } o.o_dn = id->a_vals[0]; o.o_ndn = id->a_nvals[0]; o.o_groups = NULL; } e = rs->sr_entry; /* ensure e is modifiable, but do not replace * sr_entry yet since we have pointers into it */ if ( !( rs->sr_flags & REP_ENTRY_MODIFIABLE ) ) { e = entry_dup( rs->sr_entry ); } dlc.dlc_e = e; dlc.dlc_dli = dli; cb.sc_private = &dlc; cb.sc_response = dynlist_sc_update; o.o_callback = &cb; o.ors_deref = LDAP_DEREF_NEVER; o.ors_limit = NULL; o.ors_tlimit = SLAP_NO_LIMIT; o.ors_slimit = SLAP_NO_LIMIT; for ( url = a->a_nvals; !BER_BVISNULL( url ); url++ ) { LDAPURLDesc *lud = NULL; int i, j; struct berval dn; int rc; BER_BVZERO( &o.o_req_dn ); BER_BVZERO( &o.o_req_ndn ); o.ors_filter = NULL; o.ors_attrs = NULL; BER_BVZERO( &o.ors_filterstr ); if ( ldap_url_parse( url->bv_val, &lud ) != LDAP_URL_SUCCESS ) { /* FIXME: error? */ continue; } if ( lud->lud_host != NULL ) { /* FIXME: host not allowed; reject as illegal? */ Debug( LDAP_DEBUG_ANY, "dynlist_prepare_entry(\"%s\"): " "illegal URI \"%s\"\n", e->e_name.bv_val, url->bv_val, 0 ); goto cleanup; } if ( lud->lud_dn == NULL ) { /* note that an empty base is not honored in terms * of defaultSearchBase, because select_backend() * is not aware of the defaultSearchBase option; * this can be useful in case of a database serving * the empty suffix */ BER_BVSTR( &dn, "" ); } else { ber_str2bv( lud->lud_dn, 0, 0, &dn ); } rc = dnPrettyNormal( NULL, &dn, &o.o_req_dn, &o.o_req_ndn, op->o_tmpmemctx ); if ( rc != LDAP_SUCCESS ) { /* FIXME: error? */ goto cleanup; } o.ors_scope = lud->lud_scope; for ( dlm = dli->dli_dlm; dlm; dlm = dlm->dlm_next ) { if ( dlm->dlm_mapped_ad != NULL ) { break; } } if ( dli->dli_dlm && !dlm ) { /* if ( lud->lud_attrs != NULL ), * the URL should be ignored */ o.ors_attrs = slap_anlist_no_attrs; } else if ( lud->lud_attrs == NULL ) { o.ors_attrs = rs->sr_attrs; } else { for ( i = 0; lud->lud_attrs[i]; i++) /* just count */ ; o.ors_attrs = op->o_tmpcalloc( i + 1, sizeof( AttributeName ), op->o_tmpmemctx ); for ( i = 0, j = 0; lud->lud_attrs[i]; i++) { const char *text = NULL; ber_str2bv( lud->lud_attrs[i], 0, 0, &o.ors_attrs[j].an_name ); o.ors_attrs[j].an_desc = NULL; (void)slap_bv2ad( &o.ors_attrs[j].an_name, &o.ors_attrs[j].an_desc, &text ); /* FIXME: ignore errors... */ if ( rs->sr_attrs == NULL ) { if ( o.ors_attrs[j].an_desc != NULL && is_at_operational( o.ors_attrs[j].an_desc->ad_type ) ) { continue; } } else { if ( o.ors_attrs[j].an_desc != NULL && is_at_operational( o.ors_attrs[j].an_desc->ad_type ) ) { if ( !opattrs ) { continue; } if ( !ad_inlist( o.ors_attrs[j].an_desc, rs->sr_attrs ) ) { /* lookup if mapped -- linear search, * not very efficient unless list * is very short */ for ( dlm = dli->dli_dlm; dlm; dlm = dlm->dlm_next ) { if ( dlm->dlm_member_ad == o.ors_attrs[j].an_desc ) { break; } } if ( dlm == NULL ) { continue; } } } else { if ( !userattrs && o.ors_attrs[j].an_desc != NULL && !ad_inlist( o.ors_attrs[j].an_desc, rs->sr_attrs ) ) { /* lookup if mapped -- linear search, * not very efficient unless list * is very short */ for ( dlm = dli->dli_dlm; dlm; dlm = dlm->dlm_next ) { if ( dlm->dlm_member_ad == o.ors_attrs[j].an_desc ) { break; } } if ( dlm == NULL ) { continue; } } } } j++; } if ( j == 0 ) { goto cleanup; } BER_BVZERO( &o.ors_attrs[j].an_name ); } if ( lud->lud_filter == NULL ) { ber_dupbv_x( &o.ors_filterstr, &dli->dli_default_filter, op->o_tmpmemctx ); } else { struct berval flt; ber_str2bv( lud->lud_filter, 0, 0, &flt ); if ( dynlist_make_filter( op, rs->sr_entry, url->bv_val, &flt, &o.ors_filterstr ) ) { /* error */ goto cleanup; } } o.ors_filter = str2filter_x( op, o.ors_filterstr.bv_val ); if ( o.ors_filter == NULL ) { goto cleanup; } o.o_bd = select_backend( &o.o_req_ndn, 1 ); if ( o.o_bd && o.o_bd->be_search ) { SlapReply r = { REP_SEARCH }; r.sr_attr_flags = slap_attr_flags( o.ors_attrs ); (void)o.o_bd->be_search( &o, &r ); } cleanup:; if ( id ) { slap_op_groups_free( &o ); } if ( o.ors_filter ) { filter_free_x( &o, o.ors_filter, 1 ); } if ( o.ors_attrs && o.ors_attrs != rs->sr_attrs && o.ors_attrs != slap_anlist_no_attrs ) { op->o_tmpfree( o.ors_attrs, op->o_tmpmemctx ); } if ( !BER_BVISNULL( &o.o_req_dn ) ) { op->o_tmpfree( o.o_req_dn.bv_val, op->o_tmpmemctx ); } if ( !BER_BVISNULL( &o.o_req_ndn ) ) { op->o_tmpfree( o.o_req_ndn.bv_val, op->o_tmpmemctx ); } assert( BER_BVISNULL( &o.ors_filterstr ) || o.ors_filterstr.bv_val != lud->lud_filter ); op->o_tmpfree( o.ors_filterstr.bv_val, op->o_tmpmemctx ); ldap_free_urldesc( lud ); } if ( e != rs->sr_entry ) { rs_replace_entry( op, rs, (slap_overinst *)op->o_bd->bd_info, e ); rs->sr_flags |= REP_ENTRY_MODIFIABLE | REP_ENTRY_MUSTBEFREED; } return SLAP_CB_CONTINUE; } /* dynlist_sc_compare_entry() callback set by dynlist_compare() */ typedef struct dynlist_cc_t { slap_callback dc_cb; # define dc_ava dc_cb.sc_private /* attr:val to compare with */ int *dc_res; } dynlist_cc_t; static int dynlist_sc_compare_entry( Operation *op, SlapReply *rs ) { if ( rs->sr_type == REP_SEARCH && rs->sr_entry != NULL ) { dynlist_cc_t *dc = (dynlist_cc_t *)op->o_callback; AttributeAssertion *ava = dc->dc_ava; Attribute *a = attrs_find( rs->sr_entry->e_attrs, ava->aa_desc ); if ( a != NULL ) { while ( LDAP_SUCCESS != attr_valfind( a, SLAP_MR_ATTRIBUTE_VALUE_NORMALIZED_MATCH | SLAP_MR_ASSERTED_VALUE_NORMALIZED_MATCH, &ava->aa_value, NULL, op->o_tmpmemctx ) && (a = attrs_find( a->a_next, ava->aa_desc )) != NULL ) ; *dc->dc_res = a ? LDAP_COMPARE_TRUE : LDAP_COMPARE_FALSE; } } return 0; } static int dynlist_compare( Operation *op, SlapReply *rs ) { slap_overinst *on = (slap_overinst *)op->o_bd->bd_info; dynlist_info_t *dli = (dynlist_info_t *)on->on_bi.bi_private; Operation o = *op; Entry *e = NULL; dynlist_map_t *dlm; BackendDB *be; for ( ; dli != NULL; dli = dli->dli_next ) { for ( dlm = dli->dli_dlm; dlm; dlm = dlm->dlm_next ) if ( op->oq_compare.rs_ava->aa_desc == dlm->dlm_member_ad ) break; if ( dlm ) { /* This compare is for one of the attributes we're * interested in. We'll use slapd's existing dyngroup * evaluator to get the answer we want. */ BerVarray id = NULL, authz = NULL; o.o_do_not_cache = 1; if ( ad_dgIdentity && backend_attribute( &o, NULL, &o.o_req_ndn, ad_dgIdentity, &id, ACL_READ ) == LDAP_SUCCESS ) { /* if not rootdn and dgAuthz is present, * check if user can be authorized as dgIdentity */ if ( ad_dgAuthz && !BER_BVISEMPTY( id ) && !be_isroot( op ) && backend_attribute( &o, NULL, &o.o_req_ndn, ad_dgAuthz, &authz, ACL_READ ) == LDAP_SUCCESS ) { rs->sr_err = slap_sasl_matches( op, authz, &o.o_ndn, &o.o_ndn ); ber_bvarray_free_x( authz, op->o_tmpmemctx ); if ( rs->sr_err != LDAP_SUCCESS ) { goto done; } } o.o_dn = *id; o.o_ndn = *id; o.o_groups = NULL; /* authz changed, invalidate cached groups */ } rs->sr_err = backend_group( &o, NULL, &o.o_req_ndn, &o.oq_compare.rs_ava->aa_value, dli->dli_oc, dli->dli_ad ); switch ( rs->sr_err ) { case LDAP_SUCCESS: rs->sr_err = LDAP_COMPARE_TRUE; break; case LDAP_NO_SUCH_OBJECT: /* NOTE: backend_group() returns noSuchObject * if op_ndn does not exist; however, since * dynamic list expansion means that the * member attribute is virtually present, the * non-existence of the asserted value implies * the assertion is FALSE rather than * UNDEFINED */ rs->sr_err = LDAP_COMPARE_FALSE; break; } done:; if ( id ) ber_bvarray_free_x( id, o.o_tmpmemctx ); return SLAP_CB_CONTINUE; } } be = select_backend( &o.o_req_ndn, 1 ); if ( !be || !be->be_search ) { return SLAP_CB_CONTINUE; } if ( overlay_entry_get_ov( &o, &o.o_req_ndn, NULL, NULL, 0, &e, on ) != LDAP_SUCCESS || e == NULL ) { return SLAP_CB_CONTINUE; } /* check for dynlist objectClass; done if not found */ dli = (dynlist_info_t *)on->on_bi.bi_private; while ( dli != NULL && !is_entry_objectclass_or_sub( e, dli->dli_oc ) ) { dli = dli->dli_next; } if ( dli == NULL ) { goto release; } if ( ad_dgIdentity ) { Attribute *id = attrs_find( e->e_attrs, ad_dgIdentity ); if ( id ) { Attribute *authz; /* if not rootdn and dgAuthz is present, * check if user can be authorized as dgIdentity */ if ( ad_dgAuthz && !BER_BVISEMPTY( &id->a_nvals[0] ) && !be_isroot( op ) && ( authz = attrs_find( e->e_attrs, ad_dgAuthz ) ) ) { if ( slap_sasl_matches( op, authz->a_nvals, &o.o_ndn, &o.o_ndn ) != LDAP_SUCCESS ) { goto release; } } o.o_dn = id->a_vals[0]; o.o_ndn = id->a_nvals[0]; o.o_groups = NULL; } } /* generate dynamic list with dynlist_response() and compare */ { SlapReply r = { REP_SEARCH }; dynlist_cc_t dc = { { 0, dynlist_sc_compare_entry, 0, 0 }, 0 }; AttributeName an[2]; dc.dc_ava = op->orc_ava; dc.dc_res = &rs->sr_err; o.o_callback = (slap_callback *) &dc; o.o_tag = LDAP_REQ_SEARCH; o.ors_limit = NULL; o.ors_tlimit = SLAP_NO_LIMIT; o.ors_slimit = SLAP_NO_LIMIT; o.ors_filterstr = *slap_filterstr_objectClass_pres; o.ors_filter = (Filter *) slap_filter_objectClass_pres; o.ors_scope = LDAP_SCOPE_BASE; o.ors_deref = LDAP_DEREF_NEVER; an[0].an_name = op->orc_ava->aa_desc->ad_cname; an[0].an_desc = op->orc_ava->aa_desc; BER_BVZERO( &an[1].an_name ); o.ors_attrs = an; o.ors_attrsonly = 0; o.o_acl_priv = ACL_COMPARE; o.o_bd = be; (void)be->be_search( &o, &r ); if ( o.o_dn.bv_val != op->o_dn.bv_val ) { slap_op_groups_free( &o ); } } release:; if ( e != NULL ) { overlay_entry_release_ov( &o, e, 0, on ); } return SLAP_CB_CONTINUE; } static int dynlist_response( Operation *op, SlapReply *rs ) { switch ( op->o_tag ) { case LDAP_REQ_SEARCH: if ( rs->sr_type == REP_SEARCH && !get_manageDSAit( op ) ) { int rc = SLAP_CB_CONTINUE; dynlist_info_t *dli = NULL; while ( (dli = dynlist_is_dynlist_next( op, rs, dli )) != NULL ) { rc = dynlist_prepare_entry( op, rs, dli ); } return rc; } break; case LDAP_REQ_COMPARE: switch ( rs->sr_err ) { /* NOTE: we waste a few cycles running the dynamic list * also when the result is FALSE, which occurs if the * dynamic entry itself contains the AVA attribute */ /* FIXME: this approach is less than optimal; a dedicated * compare op should be implemented, that fetches the * entry, checks if it has the appropriate objectClass * and, in case, runs a compare thru all the URIs, * stopping at the first positive occurrence; see ITS#3756 */ case LDAP_COMPARE_FALSE: case LDAP_NO_SUCH_ATTRIBUTE: return dynlist_compare( op, rs ); } break; } return SLAP_CB_CONTINUE; } static int dynlist_build_def_filter( dynlist_info_t *dli ) { char *ptr; dli->dli_default_filter.bv_len = STRLENOF( "(!(objectClass=" "))" ) + dli->dli_oc->soc_cname.bv_len; dli->dli_default_filter.bv_val = ch_malloc( dli->dli_default_filter.bv_len + 1 ); if ( dli->dli_default_filter.bv_val == NULL ) { Debug( LDAP_DEBUG_ANY, "dynlist_db_open: malloc failed.\n", 0, 0, 0 ); return -1; } ptr = lutil_strcopy( dli->dli_default_filter.bv_val, "(!(objectClass=" ); ptr = lutil_strcopy( ptr, dli->dli_oc->soc_cname.bv_val ); ptr = lutil_strcopy( ptr, "))" ); assert( ptr == &dli->dli_default_filter.bv_val[dli->dli_default_filter.bv_len] ); return 0; } enum { DL_ATTRSET = 1, DL_ATTRPAIR, DL_ATTRPAIR_COMPAT, DL_LAST }; static ConfigDriver dl_cfgen; /* XXXmanu 255 is the maximum arguments we allow. Can we go beyond? */ static ConfigTable dlcfg[] = { { "dynlist-attrset", "group-oc> [uri] <[mapped:]member-ad> [...]", 3, 0, 0, ARG_MAGIC|DL_ATTRSET, dl_cfgen, "( OLcfgOvAt:8.1 NAME 'olcDlAttrSet' " "DESC 'Dynamic list: , , ' " "EQUALITY caseIgnoreMatch " "SYNTAX OMsDirectoryString " "X-ORDERED 'VALUES' )", NULL, NULL }, { "dynlist-attrpair", "member-ad> bi; dynlist_info_t *dli = (dynlist_info_t *)on->on_bi.bi_private; int rc = 0, i; if ( c->op == SLAP_CONFIG_EMIT ) { switch( c->type ) { case DL_ATTRSET: for ( i = 0; dli; i++, dli = dli->dli_next ) { struct berval bv; char *ptr = c->cr_msg; dynlist_map_t *dlm; assert( dli->dli_oc != NULL ); assert( dli->dli_ad != NULL ); /* FIXME: check buffer overflow! */ ptr += snprintf( c->cr_msg, sizeof( c->cr_msg ), SLAP_X_ORDERED_FMT "%s", i, dli->dli_oc->soc_cname.bv_val ); if ( !BER_BVISNULL( &dli->dli_uri ) ) { *ptr++ = ' '; *ptr++ = '"'; ptr = lutil_strncopy( ptr, dli->dli_uri.bv_val, dli->dli_uri.bv_len ); *ptr++ = '"'; } *ptr++ = ' '; ptr = lutil_strncopy( ptr, dli->dli_ad->ad_cname.bv_val, dli->dli_ad->ad_cname.bv_len ); for ( dlm = dli->dli_dlm; dlm; dlm = dlm->dlm_next ) { ptr[ 0 ] = ' '; ptr++; if ( dlm->dlm_mapped_ad ) { ptr = lutil_strcopy( ptr, dlm->dlm_mapped_ad->ad_cname.bv_val ); ptr[ 0 ] = ':'; ptr++; } ptr = lutil_strcopy( ptr, dlm->dlm_member_ad->ad_cname.bv_val ); } bv.bv_val = c->cr_msg; bv.bv_len = ptr - bv.bv_val; value_add_one( &c->rvalue_vals, &bv ); } break; case DL_ATTRPAIR_COMPAT: case DL_ATTRPAIR: rc = 1; break; default: rc = 1; break; } return rc; } else if ( c->op == LDAP_MOD_DELETE ) { switch( c->type ) { case DL_ATTRSET: if ( c->valx < 0 ) { dynlist_info_t *dli_next; for ( dli_next = dli; dli_next; dli = dli_next ) { dynlist_map_t *dlm = dli->dli_dlm; dynlist_map_t *dlm_next; dli_next = dli->dli_next; if ( !BER_BVISNULL( &dli->dli_uri ) ) { ch_free( dli->dli_uri.bv_val ); } if ( dli->dli_lud != NULL ) { ldap_free_urldesc( dli->dli_lud ); } if ( !BER_BVISNULL( &dli->dli_uri_nbase ) ) { ber_memfree( dli->dli_uri_nbase.bv_val ); } if ( dli->dli_uri_filter != NULL ) { filter_free( dli->dli_uri_filter ); } ch_free( dli->dli_default_filter.bv_val ); while ( dlm != NULL ) { dlm_next = dlm->dlm_next; ch_free( dlm ); dlm = dlm_next; } ch_free( dli ); } on->on_bi.bi_private = NULL; } else { dynlist_info_t **dlip; dynlist_map_t *dlm; dynlist_map_t *dlm_next; for ( i = 0, dlip = (dynlist_info_t **)&on->on_bi.bi_private; i < c->valx; i++ ) { if ( *dlip == NULL ) { return 1; } dlip = &(*dlip)->dli_next; } dli = *dlip; *dlip = dli->dli_next; if ( !BER_BVISNULL( &dli->dli_uri ) ) { ch_free( dli->dli_uri.bv_val ); } if ( dli->dli_lud != NULL ) { ldap_free_urldesc( dli->dli_lud ); } if ( !BER_BVISNULL( &dli->dli_uri_nbase ) ) { ber_memfree( dli->dli_uri_nbase.bv_val ); } if ( dli->dli_uri_filter != NULL ) { filter_free( dli->dli_uri_filter ); } ch_free( dli->dli_default_filter.bv_val ); dlm = dli->dli_dlm; while ( dlm != NULL ) { dlm_next = dlm->dlm_next; ch_free( dlm ); dlm = dlm_next; } ch_free( dli ); dli = (dynlist_info_t *)on->on_bi.bi_private; } break; case DL_ATTRPAIR_COMPAT: case DL_ATTRPAIR: rc = 1; break; default: rc = 1; break; } return rc; } switch( c->type ) { case DL_ATTRSET: { dynlist_info_t **dlip, *dli_next = NULL; ObjectClass *oc = NULL; AttributeDescription *ad = NULL; int attridx = 2; LDAPURLDesc *lud = NULL; struct berval nbase = BER_BVNULL; Filter *filter = NULL; struct berval uri = BER_BVNULL; dynlist_map_t *dlm = NULL, *dlml = NULL; const char *text; oc = oc_find( c->argv[ 1 ] ); if ( oc == NULL ) { snprintf( c->cr_msg, sizeof( c->cr_msg ), DYNLIST_USAGE "unable to find ObjectClass \"%s\"", c->argv[ 1 ] ); Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->cr_msg, 0 ); return 1; } if ( strncasecmp( c->argv[ attridx ], "ldap://", STRLENOF("ldap://") ) == 0 ) { if ( ldap_url_parse( c->argv[ attridx ], &lud ) != LDAP_URL_SUCCESS ) { snprintf( c->cr_msg, sizeof( c->cr_msg ), DYNLIST_USAGE "unable to parse URI \"%s\"", c->argv[ attridx ] ); rc = 1; goto done_uri; } if ( lud->lud_host != NULL ) { if ( lud->lud_host[0] == '\0' ) { ch_free( lud->lud_host ); lud->lud_host = NULL; } else { snprintf( c->cr_msg, sizeof( c->cr_msg ), DYNLIST_USAGE "host not allowed in URI \"%s\"", c->argv[ attridx ] ); rc = 1; goto done_uri; } } if ( lud->lud_attrs != NULL ) { snprintf( c->cr_msg, sizeof( c->cr_msg ), DYNLIST_USAGE "attrs not allowed in URI \"%s\"", c->argv[ attridx ] ); rc = 1; goto done_uri; } if ( lud->lud_exts != NULL ) { snprintf( c->cr_msg, sizeof( c->cr_msg ), DYNLIST_USAGE "extensions not allowed in URI \"%s\"", c->argv[ attridx ] ); rc = 1; goto done_uri; } if ( lud->lud_dn != NULL && lud->lud_dn[ 0 ] != '\0' ) { struct berval dn; ber_str2bv( lud->lud_dn, 0, 0, &dn ); rc = dnNormalize( 0, NULL, NULL, &dn, &nbase, NULL ); if ( rc != LDAP_SUCCESS ) { snprintf( c->cr_msg, sizeof( c->cr_msg ), DYNLIST_USAGE "DN normalization failed in URI \"%s\"", c->argv[ attridx ] ); goto done_uri; } } if ( lud->lud_filter != NULL && lud->lud_filter[ 0 ] != '\0' ) { filter = str2filter( lud->lud_filter ); if ( filter == NULL ) { snprintf( c->cr_msg, sizeof( c->cr_msg ), DYNLIST_USAGE "filter parsing failed in URI \"%s\"", c->argv[ attridx ] ); rc = 1; goto done_uri; } } ber_str2bv( c->argv[ attridx ], 0, 1, &uri ); done_uri:; if ( rc ) { if ( lud ) { ldap_free_urldesc( lud ); } if ( !BER_BVISNULL( &nbase ) ) { ber_memfree( nbase.bv_val ); } if ( filter != NULL ) { filter_free( filter ); } while ( dlm != NULL ) { dlml = dlm; dlm = dlm->dlm_next; ch_free( dlml ); } Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->cr_msg, 0 ); return rc; } attridx++; } rc = slap_str2ad( c->argv[ attridx ], &ad, &text ); if ( rc != LDAP_SUCCESS ) { snprintf( c->cr_msg, sizeof( c->cr_msg ), DYNLIST_USAGE "unable to find AttributeDescription \"%s\"", c->argv[ attridx ] ); Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->cr_msg, 0 ); rc = 1; goto done_uri; } if ( !is_at_subtype( ad->ad_type, slap_schema.si_ad_labeledURI->ad_type ) ) { snprintf( c->cr_msg, sizeof( c->cr_msg ), DYNLIST_USAGE "AttributeDescription \"%s\" " "must be a subtype of \"labeledURI\"", c->argv[ attridx ] ); Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->cr_msg, 0 ); rc = 1; goto done_uri; } attridx++; for ( i = attridx; i < c->argc; i++ ) { char *arg; char *cp; AttributeDescription *member_ad = NULL; AttributeDescription *mapped_ad = NULL; dynlist_map_t *dlmp; /* * If no mapped attribute is given, dn is used * for backward compatibility. */ arg = c->argv[i]; if ( ( cp = strchr( arg, ':' ) ) != NULL ) { struct berval bv; ber_str2bv( arg, cp - arg, 0, &bv ); rc = slap_bv2ad( &bv, &mapped_ad, &text ); if ( rc != LDAP_SUCCESS ) { snprintf( c->cr_msg, sizeof( c->cr_msg ), DYNLIST_USAGE "unable to find mapped AttributeDescription #%d \"%s\"\n", i - 3, c->argv[ i ] ); Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->cr_msg, 0 ); rc = 1; goto done_uri; } arg = cp + 1; } rc = slap_str2ad( arg, &member_ad, &text ); if ( rc != LDAP_SUCCESS ) { snprintf( c->cr_msg, sizeof( c->cr_msg ), DYNLIST_USAGE "unable to find AttributeDescription #%d \"%s\"\n", i - 3, c->argv[ i ] ); Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->cr_msg, 0 ); rc = 1; goto done_uri; } dlmp = (dynlist_map_t *)ch_calloc( 1, sizeof( dynlist_map_t ) ); if ( dlm == NULL ) { dlm = dlmp; } dlmp->dlm_member_ad = member_ad; dlmp->dlm_mapped_ad = mapped_ad; dlmp->dlm_next = NULL; if ( dlml != NULL ) dlml->dlm_next = dlmp; dlml = dlmp; } if ( c->valx > 0 ) { int i; for ( i = 0, dlip = (dynlist_info_t **)&on->on_bi.bi_private; i < c->valx; i++ ) { if ( *dlip == NULL ) { snprintf( c->cr_msg, sizeof( c->cr_msg ), DYNLIST_USAGE "invalid index {%d}\n", c->valx ); Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->cr_msg, 0 ); rc = 1; goto done_uri; } dlip = &(*dlip)->dli_next; } dli_next = *dlip; } else { for ( dlip = (dynlist_info_t **)&on->on_bi.bi_private; *dlip; dlip = &(*dlip)->dli_next ) /* goto last */; } *dlip = (dynlist_info_t *)ch_calloc( 1, sizeof( dynlist_info_t ) ); (*dlip)->dli_oc = oc; (*dlip)->dli_ad = ad; (*dlip)->dli_dlm = dlm; (*dlip)->dli_next = dli_next; (*dlip)->dli_lud = lud; (*dlip)->dli_uri_nbase = nbase; (*dlip)->dli_uri_filter = filter; (*dlip)->dli_uri = uri; rc = dynlist_build_def_filter( *dlip ); } break; case DL_ATTRPAIR_COMPAT: snprintf( c->cr_msg, sizeof( c->cr_msg ), "warning: \"attrpair\" only supported for limited " "backward compatibility with overlay \"dyngroup\"" ); Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->cr_msg, 0 ); /* fallthru */ case DL_ATTRPAIR: { dynlist_info_t **dlip; ObjectClass *oc = NULL; AttributeDescription *ad = NULL, *member_ad = NULL; const char *text; oc = oc_find( "groupOfURLs" ); if ( oc == NULL ) { snprintf( c->cr_msg, sizeof( c->cr_msg ), "\"dynlist-attrpair \": " "unable to find default ObjectClass \"groupOfURLs\"" ); Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->cr_msg, 0 ); return 1; } rc = slap_str2ad( c->argv[ 1 ], &member_ad, &text ); if ( rc != LDAP_SUCCESS ) { snprintf( c->cr_msg, sizeof( c->cr_msg ), "\"dynlist-attrpair \": " "unable to find AttributeDescription \"%s\"", c->argv[ 1 ] ); Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->cr_msg, 0 ); return 1; } rc = slap_str2ad( c->argv[ 2 ], &ad, &text ); if ( rc != LDAP_SUCCESS ) { snprintf( c->cr_msg, sizeof( c->cr_msg ), "\"dynlist-attrpair \": " "unable to find AttributeDescription \"%s\"\n", c->argv[ 2 ] ); Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->cr_msg, 0 ); return 1; } if ( !is_at_subtype( ad->ad_type, slap_schema.si_ad_labeledURI->ad_type ) ) { snprintf( c->cr_msg, sizeof( c->cr_msg ), DYNLIST_USAGE "AttributeDescription \"%s\" " "must be a subtype of \"labeledURI\"", c->argv[ 2 ] ); Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->cr_msg, 0 ); return 1; } for ( dlip = (dynlist_info_t **)&on->on_bi.bi_private; *dlip; dlip = &(*dlip)->dli_next ) { /* * The same URL attribute / member attribute pair * cannot be repeated, but we enforce this only * when the member attribute is unique. Performing * the check for multiple values would require * sorting and comparing the lists, which is left * as a future improvement */ if ( (*dlip)->dli_ad == ad && (*dlip)->dli_dlm->dlm_next == NULL && member_ad == (*dlip)->dli_dlm->dlm_member_ad ) { snprintf( c->cr_msg, sizeof( c->cr_msg ), "\"dynlist-attrpair \": " "URL attributeDescription \"%s\" already mapped.\n", ad->ad_cname.bv_val ); Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->cr_msg, 0 ); #if 0 /* make it a warning... */ return 1; #endif } } *dlip = (dynlist_info_t *)ch_calloc( 1, sizeof( dynlist_info_t ) ); (*dlip)->dli_oc = oc; (*dlip)->dli_ad = ad; (*dlip)->dli_dlm = (dynlist_map_t *)ch_calloc( 1, sizeof( dynlist_map_t ) ); (*dlip)->dli_dlm->dlm_member_ad = member_ad; (*dlip)->dli_dlm->dlm_mapped_ad = NULL; rc = dynlist_build_def_filter( *dlip ); } break; default: rc = 1; break; } return rc; } static int dynlist_db_open( BackendDB *be, ConfigReply *cr ) { slap_overinst *on = (slap_overinst *) be->bd_info; dynlist_info_t *dli = (dynlist_info_t *)on->on_bi.bi_private; ObjectClass *oc = NULL; AttributeDescription *ad = NULL; const char *text; int rc; if ( dli == NULL ) { dli = ch_calloc( 1, sizeof( dynlist_info_t ) ); on->on_bi.bi_private = (void *)dli; } for ( ; dli; dli = dli->dli_next ) { if ( dli->dli_oc == NULL ) { if ( oc == NULL ) { oc = oc_find( "groupOfURLs" ); if ( oc == NULL ) { snprintf( cr->msg, sizeof( cr->msg), "unable to fetch objectClass \"groupOfURLs\"" ); Debug( LDAP_DEBUG_ANY, "dynlist_db_open: %s.\n", cr->msg, 0, 0 ); return 1; } } dli->dli_oc = oc; } if ( dli->dli_ad == NULL ) { if ( ad == NULL ) { rc = slap_str2ad( "memberURL", &ad, &text ); if ( rc != LDAP_SUCCESS ) { snprintf( cr->msg, sizeof( cr->msg), "unable to fetch attributeDescription \"memberURL\": %d (%s)", rc, text ); Debug( LDAP_DEBUG_ANY, "dynlist_db_open: %s.\n", cr->msg, 0, 0 ); return 1; } } dli->dli_ad = ad; } if ( BER_BVISNULL( &dli->dli_default_filter ) ) { rc = dynlist_build_def_filter( dli ); if ( rc != 0 ) { return rc; } } } if ( ad_dgIdentity == NULL ) { rc = slap_str2ad( "dgIdentity", &ad_dgIdentity, &text ); if ( rc != LDAP_SUCCESS ) { snprintf( cr->msg, sizeof( cr->msg), "unable to fetch attributeDescription \"dgIdentity\": %d (%s)", rc, text ); Debug( LDAP_DEBUG_ANY, "dynlist_db_open: %s\n", cr->msg, 0, 0 ); /* Just a warning */ } } if ( ad_dgAuthz == NULL ) { rc = slap_str2ad( "dgAuthz", &ad_dgAuthz, &text ); if ( rc != LDAP_SUCCESS ) { snprintf( cr->msg, sizeof( cr->msg), "unable to fetch attributeDescription \"dgAuthz\": %d (%s)", rc, text ); Debug( LDAP_DEBUG_ANY, "dynlist_db_open: %s\n", cr->msg, 0, 0 ); /* Just a warning */ } } return 0; } static int dynlist_db_destroy( BackendDB *be, ConfigReply *cr ) { slap_overinst *on = (slap_overinst *) be->bd_info; if ( on->on_bi.bi_private ) { dynlist_info_t *dli = (dynlist_info_t *)on->on_bi.bi_private, *dli_next; for ( dli_next = dli; dli_next; dli = dli_next ) { dynlist_map_t *dlm; dynlist_map_t *dlm_next; dli_next = dli->dli_next; if ( !BER_BVISNULL( &dli->dli_uri ) ) { ch_free( dli->dli_uri.bv_val ); } if ( dli->dli_lud != NULL ) { ldap_free_urldesc( dli->dli_lud ); } if ( !BER_BVISNULL( &dli->dli_uri_nbase ) ) { ber_memfree( dli->dli_uri_nbase.bv_val ); } if ( dli->dli_uri_filter != NULL ) { filter_free( dli->dli_uri_filter ); } ch_free( dli->dli_default_filter.bv_val ); dlm = dli->dli_dlm; while ( dlm != NULL ) { dlm_next = dlm->dlm_next; ch_free( dlm ); dlm = dlm_next; } ch_free( dli ); } } return 0; } static slap_overinst dynlist = { { NULL } }; #ifdef TAKEOVER_DYNGROUP static char *obsolete_names[] = { "dyngroup", NULL }; #endif #if SLAPD_OVER_DYNLIST == SLAPD_MOD_DYNAMIC static #endif /* SLAPD_OVER_DYNLIST == SLAPD_MOD_DYNAMIC */ int dynlist_initialize(void) { int rc = 0; dynlist.on_bi.bi_type = "dynlist"; #ifdef TAKEOVER_DYNGROUP /* makes dynlist incompatible with dyngroup */ dynlist.on_bi.bi_obsolete_names = obsolete_names; #endif dynlist.on_bi.bi_db_config = config_generic_wrapper; dynlist.on_bi.bi_db_open = dynlist_db_open; dynlist.on_bi.bi_db_destroy = dynlist_db_destroy; dynlist.on_response = dynlist_response; dynlist.on_bi.bi_cf_ocs = dlocs; rc = config_register_schema( dlcfg, dlocs ); if ( rc ) { return rc; } return overlay_register( &dynlist ); } #if SLAPD_OVER_DYNLIST == SLAPD_MOD_DYNAMIC int init_module( int argc, char *argv[] ) { return dynlist_initialize(); } #endif #endif /* SLAPD_OVER_DYNLIST */