1 /* delete.c - delete request handler for back-asyncmeta */
3 /* This work is part of OpenLDAP Software <http://www.openldap.org/>.
5 * Copyright 2016-2017 The OpenLDAP Foundation.
6 * Portions Copyright 2016 Symas Corporation.
9 * Redistribution and use in source and binary forms, with or without
10 * modification, are permitted only as authorized by the OpenLDAP
13 * A copy of this license is available in the file LICENSE in the
14 * top-level directory of the distribution or, alternatively, at
15 * <http://www.OpenLDAP.org/license.html>.
19 + * This work was developed by Symas Corporation
20 + * based on back-meta module for inclusion in OpenLDAP Software.
21 + * This work was sponsored by Ericsson. */
27 #include <ac/string.h>
28 #include <ac/socket.h>
31 #include "../back-ldap/back-ldap.h"
32 #include "back-asyncmeta.h"
33 #include "../../../libraries/liblber/lber-int.h"
34 #include "../../../libraries/libldap/ldap-int.h"
36 meta_search_candidate_t
37 asyncmeta_back_delete_start(Operation *op,
43 a_metainfo_t *mi = mc->mc_info;
44 a_metatarget_t *mt = mi->mi_targets[ candidate ];
45 struct berval mdn = BER_BVNULL;
47 int rc = 0, nretries = 1;
48 LDAPControl **ctrls = NULL;
49 meta_search_candidate_t retcode = META_SEARCH_CANDIDATE;
50 BerElement *ber = NULL;
51 a_metasingleconn_t *msc = &mc->mc_conns[ candidate ];
52 SlapReply *candidates = bc->candidates;
60 if ( asyncmeta_dn_massage( &dc, &op->o_req_dn, &mdn ) ) {
61 rs->sr_err = LDAP_UNWILLING_TO_PERFORM;
62 retcode = META_SEARCH_ERR;
68 if ( asyncmeta_controls_add( op, rs, mc, candidate, &ctrls ) != LDAP_SUCCESS )
70 candidates[ candidate ].sr_msgid = META_MSGID_IGNORE;
71 retcode = META_SEARCH_ERR;
75 ber = ldap_build_delete_req( msc->msc_ld, mdn.bv_val, ctrls, NULL, &msgid);
77 candidates[ candidate ].sr_msgid = msgid;
78 rc = ldap_send_initial_request( msc->msc_ld, LDAP_REQ_DELETE,
79 mdn.bv_val, ber, msgid );
83 rc = LDAP_SERVER_DOWN;
87 retcode = META_SEARCH_CANDIDATE;
88 asyncmeta_set_msc_time(msc);
91 case LDAP_SERVER_DOWN:
92 ldap_pvt_thread_mutex_lock( &mc->mc_om_mutex);
93 asyncmeta_clear_one_msc(NULL, mc, candidate);
94 ldap_pvt_thread_mutex_unlock( &mc->mc_om_mutex);
95 if ( nretries && asyncmeta_retry( op, rs, &mc, candidate, LDAP_BACK_DONTSEND ) ) {
97 /* if the identity changed, there might be need to re-authz */
98 (void)mi->mi_ldap_extra->controls_free( op, rs, &ctrls );
103 candidates[ candidate ].sr_msgid = META_MSGID_IGNORE;
104 retcode = META_SEARCH_ERR;
108 (void)mi->mi_ldap_extra->controls_free( op, rs, &ctrls );
110 if ( mdn.bv_val != op->o_req_dn.bv_val ) {
116 Debug( LDAP_DEBUG_TRACE, "%s <<< asyncmeta_back_delete_start[%p]=%d\n", op->o_log_prefix, msc, candidates[candidate].sr_msgid );
121 asyncmeta_back_delete( Operation *op, SlapReply *rs )
123 a_metainfo_t *mi = ( a_metainfo_t * )op->o_bd->be_private;
126 int rc, candidate = -1;
127 OperationBuffer opbuf;
129 SlapReply *candidates;
130 slap_callback *cb = op->o_callback;
132 Debug(LDAP_DEBUG_ARGS, "==> asyncmeta_back_delete: %s\n",
133 op->o_req_dn.bv_val, 0, 0 );
135 asyncmeta_new_bm_context(op, rs, &bc, mi->mi_ntargets );
137 rs->sr_err = LDAP_OTHER;
138 asyncmeta_sender_error(op, rs, cb);
142 candidates = bc->candidates;
143 mc = asyncmeta_getconn( op, rs, candidates, &candidate, LDAP_BACK_DONTSEND, 0);
144 if ( !mc || rs->sr_err != LDAP_SUCCESS) {
145 asyncmeta_sender_error(op, rs, cb);
146 asyncmeta_clear_bm_context(bc);
150 mt = mi->mi_targets[ candidate ];
151 bc->timeout = mt->mt_timeout[ SLAP_OP_DELETE ];
152 bc->retrying = LDAP_BACK_RETRYING;
153 bc->sendok = ( LDAP_BACK_SENDRESULT | bc->retrying );
154 bc->stoptime = op->o_time + bc->timeout;
156 ldap_pvt_thread_mutex_lock( &mc->mc_om_mutex);
157 rc = asyncmeta_add_message_queue(mc, bc);
158 ldap_pvt_thread_mutex_unlock( &mc->mc_om_mutex);
160 if (rc != LDAP_SUCCESS) {
161 rs->sr_err = LDAP_BUSY;
162 rs->sr_text = "Maximum pending ops limit exceeded";
163 asyncmeta_clear_bm_context(bc);
164 asyncmeta_sender_error(op, rs, cb);
168 rc = asyncmeta_dobind_init_with_retry(op, rs, bc, mc, candidate);
171 case META_SEARCH_CANDIDATE:
172 /* target is already bound, just send the request */
173 Debug( LDAP_DEBUG_TRACE, "%s asyncmeta_back_delete: "
174 "cnd=\"%ld\"\n", op->o_log_prefix, candidate , 0);
176 rc = asyncmeta_back_delete_start( op, rs, mc, bc, candidate);
177 if (rc == META_SEARCH_ERR) {
178 ldap_pvt_thread_mutex_lock( &mc->mc_om_mutex);
179 asyncmeta_drop_bc(mc, bc);
180 ldap_pvt_thread_mutex_unlock( &mc->mc_om_mutex);
181 asyncmeta_sender_error(op, rs, cb);
182 asyncmeta_clear_bm_context(bc);
187 case META_SEARCH_NOT_CANDIDATE:
188 Debug( LDAP_DEBUG_TRACE, "%s asyncmeta_back_delete: NOT_CANDIDATE "
189 "cnd=\"%ld\"\n", op->o_log_prefix, candidate , 0);
190 candidates[ candidate ].sr_msgid = META_MSGID_IGNORE;
191 ldap_pvt_thread_mutex_lock( &mc->mc_om_mutex);
192 asyncmeta_drop_bc(mc, bc);
193 ldap_pvt_thread_mutex_unlock( &mc->mc_om_mutex);
194 asyncmeta_sender_error(op, rs, cb);
195 asyncmeta_clear_bm_context(bc);
198 case META_SEARCH_NEED_BIND:
199 case META_SEARCH_CONNECTING:
200 Debug( LDAP_DEBUG_TRACE, "%s asyncmeta_back_delete: NEED_BIND "
201 "cnd=\"%ld\" %p\n", op->o_log_prefix, candidate , &mc->mc_conns[candidate]);
202 rc = asyncmeta_dobind_init(op, rs, bc, mc, candidate);
203 if (rc == META_SEARCH_ERR) {
204 ldap_pvt_thread_mutex_lock( &mc->mc_om_mutex);
205 asyncmeta_drop_bc(mc, bc);
206 ldap_pvt_thread_mutex_unlock( &mc->mc_om_mutex);
207 asyncmeta_sender_error(op, rs, cb);
208 asyncmeta_clear_bm_context(bc);
212 case META_SEARCH_BINDING:
213 Debug( LDAP_DEBUG_TRACE, "%s asyncmeta_back_delete: BINDING "
214 "cnd=\"%ld\" %p\n", op->o_log_prefix, candidate , &mc->mc_conns[candidate]);
215 /* Todo add the context to the message queue but do not send the request
216 the receiver must send this when we are done binding */
217 /* question - how would do receiver know to which targets??? */
220 case META_SEARCH_ERR:
221 Debug( LDAP_DEBUG_TRACE, "%s asyncmeta_back_delete: ERR "
222 "cnd=\"%ldd\"\n", op->o_log_prefix, candidate , 0);
223 candidates[ candidate ].sr_msgid = META_MSGID_IGNORE;
224 candidates[ candidate ].sr_type = REP_RESULT;
225 ldap_pvt_thread_mutex_lock( &mc->mc_om_mutex);
226 asyncmeta_drop_bc(mc, bc);
227 ldap_pvt_thread_mutex_unlock( &mc->mc_om_mutex);
228 asyncmeta_sender_error(op, rs, cb);
229 asyncmeta_clear_bm_context(bc);
235 ldap_pvt_thread_mutex_lock( &mc->mc_om_mutex);
236 asyncmeta_start_one_listener(mc, candidates, bc, candidate);
237 ldap_pvt_thread_mutex_unlock( &mc->mc_om_mutex);