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2598 lines
68 KiB
C
2598 lines
68 KiB
C
/* $OpenLDAP$ */
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/* syncprov.c - syncrepl provider */
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/* This work is part of OpenLDAP Software <http://www.openldap.org/>.
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*
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* Copyright 2004-2005 The OpenLDAP Foundation.
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted only as authorized by the OpenLDAP
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* Public License.
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*
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* A copy of this license is available in the file LICENSE in the
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* top-level directory of the distribution or, alternatively, at
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* <http://www.OpenLDAP.org/license.html>.
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*/
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/* ACKNOWLEDGEMENTS:
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* This work was initially developed by Howard Chu for inclusion in
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* OpenLDAP Software.
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*/
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#include "portable.h"
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#ifdef SLAPD_OVER_SYNCPROV
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#include <ac/string.h>
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#include "lutil.h"
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#include "slap.h"
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#include "config.h"
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#include "ldap_rq.h"
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/* A modify request on a particular entry */
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typedef struct modinst {
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struct modinst *mi_next;
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Operation *mi_op;
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} modinst;
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typedef struct modtarget {
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struct modinst *mt_mods;
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struct modinst *mt_tail;
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Operation *mt_op;
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ldap_pvt_thread_mutex_t mt_mutex;
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} modtarget;
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/* A queued result of a persistent search */
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typedef struct syncres {
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struct syncres *s_next;
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struct berval s_dn;
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struct berval s_ndn;
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struct berval s_uuid;
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struct berval s_csn;
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char s_mode;
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char s_isreference;
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} syncres;
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/* Record of a persistent search */
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typedef struct syncops {
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struct syncops *s_next;
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struct berval s_base; /* ndn of search base */
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ID s_eid; /* entryID of search base */
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Operation *s_op; /* search op */
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int s_rid;
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struct berval s_filterstr;
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int s_flags; /* search status */
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#define PS_IS_REFRESHING 0x01
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#define PS_IS_DETACHED 0x02
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#define PS_WROTE_BASE 0x04
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#define PS_FIND_BASE 0x08
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int s_inuse; /* reference count */
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struct syncres *s_res;
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struct syncres *s_restail;
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struct re_s *s_qtask; /* task for playing psearch responses */
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#define RUNQ_INTERVAL 36000 /* a long time */
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ldap_pvt_thread_mutex_t s_mutex;
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} syncops;
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/* A received sync control */
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typedef struct sync_control {
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struct sync_cookie sr_state;
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int sr_rhint;
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} sync_control;
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#if 0 /* moved back to slap.h */
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#define o_sync o_ctrlflag[slap_cids.sc_LDAPsync]
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#endif
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/* o_sync_mode uses data bits of o_sync */
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#define o_sync_mode o_ctrlflag[slap_cids.sc_LDAPsync]
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#define SLAP_SYNC_NONE (LDAP_SYNC_NONE<<SLAP_CONTROL_SHIFT)
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#define SLAP_SYNC_REFRESH (LDAP_SYNC_REFRESH_ONLY<<SLAP_CONTROL_SHIFT)
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#define SLAP_SYNC_PERSIST (LDAP_SYNC_RESERVED<<SLAP_CONTROL_SHIFT)
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#define SLAP_SYNC_REFRESH_AND_PERSIST (LDAP_SYNC_REFRESH_AND_PERSIST<<SLAP_CONTROL_SHIFT)
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/* Record of which searches matched at premodify step */
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typedef struct syncmatches {
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struct syncmatches *sm_next;
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syncops *sm_op;
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} syncmatches;
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/* Session log data */
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typedef struct slog_entry {
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struct slog_entry *se_next;
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struct berval se_uuid;
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struct berval se_csn;
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ber_tag_t se_tag;
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} slog_entry;
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typedef struct sessionlog {
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struct berval sl_mincsn;
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int sl_num;
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int sl_size;
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slog_entry *sl_head;
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slog_entry *sl_tail;
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ldap_pvt_thread_mutex_t sl_mutex;
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} sessionlog;
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/* The main state for this overlay */
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typedef struct syncprov_info_t {
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syncops *si_ops;
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struct berval si_ctxcsn; /* ldapsync context */
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int si_chkops; /* checkpointing info */
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int si_chktime;
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int si_numops; /* number of ops since last checkpoint */
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int si_nopres; /* Skip present phase */
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int si_usehint; /* use reload hint */
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time_t si_chklast; /* time of last checkpoint */
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Avlnode *si_mods; /* entries being modified */
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sessionlog *si_logs;
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ldap_pvt_thread_mutex_t si_csn_mutex;
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ldap_pvt_thread_mutex_t si_ops_mutex;
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ldap_pvt_thread_mutex_t si_mods_mutex;
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char si_ctxcsnbuf[LDAP_LUTIL_CSNSTR_BUFSIZE];
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} syncprov_info_t;
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typedef struct opcookie {
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slap_overinst *son;
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syncmatches *smatches;
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struct berval sdn; /* DN of entry, for deletes */
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struct berval sndn;
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struct berval suuid; /* UUID of entry */
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struct berval sctxcsn;
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int sreference; /* Is the entry a reference? */
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} opcookie;
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typedef struct fbase_cookie {
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struct berval *fdn; /* DN of a modified entry, for scope testing */
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syncops *fss; /* persistent search we're testing against */
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int fbase; /* if TRUE we found the search base and it's still valid */
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int fscope; /* if TRUE then fdn is within the psearch scope */
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} fbase_cookie;
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static AttributeName csn_anlist[3];
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static AttributeName uuid_anlist[2];
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/* Build a LDAPsync intermediate state control */
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static int
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syncprov_state_ctrl(
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Operation *op,
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SlapReply *rs,
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Entry *e,
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int entry_sync_state,
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LDAPControl **ctrls,
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int num_ctrls,
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int send_cookie,
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struct berval *cookie )
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{
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Attribute* a;
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int ret;
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BerElementBuffer berbuf;
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BerElement *ber = (BerElement *)&berbuf;
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struct berval entryuuid_bv = BER_BVNULL;
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ber_init2( ber, 0, LBER_USE_DER );
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ber_set_option( ber, LBER_OPT_BER_MEMCTX, &op->o_tmpmemctx );
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ctrls[num_ctrls] = op->o_tmpalloc( sizeof ( LDAPControl ), op->o_tmpmemctx );
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for ( a = e->e_attrs; a != NULL; a = a->a_next ) {
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AttributeDescription *desc = a->a_desc;
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if ( desc == slap_schema.si_ad_entryUUID ) {
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entryuuid_bv = a->a_nvals[0];
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break;
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}
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}
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/* FIXME: what if entryuuid is NULL or empty ? */
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if ( send_cookie && cookie ) {
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ber_printf( ber, "{eOON}",
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entry_sync_state, &entryuuid_bv, cookie );
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} else {
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ber_printf( ber, "{eON}",
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entry_sync_state, &entryuuid_bv );
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}
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ctrls[num_ctrls]->ldctl_oid = LDAP_CONTROL_SYNC_STATE;
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ctrls[num_ctrls]->ldctl_iscritical = (op->o_sync == SLAP_CONTROL_CRITICAL);
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ret = ber_flatten2( ber, &ctrls[num_ctrls]->ldctl_value, 1 );
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ber_free_buf( ber );
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if ( ret < 0 ) {
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Debug( LDAP_DEBUG_TRACE,
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"slap_build_sync_ctrl: ber_flatten2 failed\n",
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0, 0, 0 );
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send_ldap_error( op, rs, LDAP_OTHER, "internal error" );
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return ret;
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}
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return LDAP_SUCCESS;
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}
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/* Build a LDAPsync final state control */
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static int
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syncprov_done_ctrl(
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Operation *op,
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SlapReply *rs,
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LDAPControl **ctrls,
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int num_ctrls,
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int send_cookie,
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struct berval *cookie,
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int refreshDeletes )
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{
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int ret;
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BerElementBuffer berbuf;
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BerElement *ber = (BerElement *)&berbuf;
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ber_init2( ber, NULL, LBER_USE_DER );
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ber_set_option( ber, LBER_OPT_BER_MEMCTX, &op->o_tmpmemctx );
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ctrls[num_ctrls] = op->o_tmpalloc( sizeof ( LDAPControl ), op->o_tmpmemctx );
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ber_printf( ber, "{" );
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if ( send_cookie && cookie ) {
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ber_printf( ber, "O", cookie );
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}
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if ( refreshDeletes == LDAP_SYNC_REFRESH_DELETES ) {
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ber_printf( ber, "b", refreshDeletes );
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}
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ber_printf( ber, "N}" );
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ctrls[num_ctrls]->ldctl_oid = LDAP_CONTROL_SYNC_DONE;
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ctrls[num_ctrls]->ldctl_iscritical = (op->o_sync == SLAP_CONTROL_CRITICAL);
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ret = ber_flatten2( ber, &ctrls[num_ctrls]->ldctl_value, 1 );
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ber_free_buf( ber );
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if ( ret < 0 ) {
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Debug( LDAP_DEBUG_TRACE,
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"syncprov_done_ctrl: ber_flatten2 failed\n",
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0, 0, 0 );
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send_ldap_error( op, rs, LDAP_OTHER, "internal error" );
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return ret;
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}
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return LDAP_SUCCESS;
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}
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static int
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syncprov_sendinfo(
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Operation *op,
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SlapReply *rs,
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int type,
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struct berval *cookie,
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int refreshDone,
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BerVarray syncUUIDs,
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int refreshDeletes )
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{
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BerElementBuffer berbuf;
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BerElement *ber = (BerElement *)&berbuf;
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struct berval rspdata;
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int ret;
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ber_init2( ber, NULL, LBER_USE_DER );
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ber_set_option( ber, LBER_OPT_BER_MEMCTX, &op->o_tmpmemctx );
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if ( type ) {
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switch ( type ) {
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case LDAP_TAG_SYNC_NEW_COOKIE:
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ber_printf( ber, "tO", type, cookie );
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break;
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case LDAP_TAG_SYNC_REFRESH_DELETE:
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case LDAP_TAG_SYNC_REFRESH_PRESENT:
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ber_printf( ber, "t{", type );
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if ( cookie ) {
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ber_printf( ber, "O", cookie );
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}
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if ( refreshDone == 0 ) {
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ber_printf( ber, "b", refreshDone );
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}
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ber_printf( ber, "N}" );
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break;
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case LDAP_TAG_SYNC_ID_SET:
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ber_printf( ber, "t{", type );
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if ( cookie ) {
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ber_printf( ber, "O", cookie );
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}
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if ( refreshDeletes == 1 ) {
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ber_printf( ber, "b", refreshDeletes );
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}
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ber_printf( ber, "[W]", syncUUIDs );
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ber_printf( ber, "N}" );
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break;
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default:
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Debug( LDAP_DEBUG_TRACE,
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"syncprov_sendinfo: invalid syncinfo type (%d)\n",
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type, 0, 0 );
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return LDAP_OTHER;
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}
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}
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ret = ber_flatten2( ber, &rspdata, 0 );
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if ( ret < 0 ) {
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Debug( LDAP_DEBUG_TRACE,
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"syncprov_sendinfo: ber_flatten2 failed\n",
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0, 0, 0 );
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send_ldap_error( op, rs, LDAP_OTHER, "internal error" );
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return ret;
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}
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rs->sr_rspoid = LDAP_SYNC_INFO;
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rs->sr_rspdata = &rspdata;
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send_ldap_intermediate( op, rs );
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rs->sr_rspdata = NULL;
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ber_free_buf( ber );
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return LDAP_SUCCESS;
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}
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/* Find a modtarget in an AVL tree */
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static int
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sp_avl_cmp( const void *c1, const void *c2 )
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{
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const modtarget *m1, *m2;
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int rc;
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m1 = c1; m2 = c2;
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rc = m1->mt_op->o_req_ndn.bv_len - m2->mt_op->o_req_ndn.bv_len;
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if ( rc ) return rc;
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return ber_bvcmp( &m1->mt_op->o_req_ndn, &m2->mt_op->o_req_ndn );
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}
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/* syncprov_findbase:
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* finds the true DN of the base of a search (with alias dereferencing) and
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* checks to make sure the base entry doesn't get replaced with a different
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* entry (e.g., swapping trees via ModDN, or retargeting an alias). If a
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* change is detected, any persistent search on this base must be terminated /
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* reloaded.
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* On the first call, we just save the DN and entryID. On subsequent calls
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* we compare the DN and entryID with the saved values.
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*/
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static int
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findbase_cb( Operation *op, SlapReply *rs )
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{
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slap_callback *sc = op->o_callback;
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if ( rs->sr_type == REP_SEARCH && rs->sr_err == LDAP_SUCCESS ) {
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fbase_cookie *fc = sc->sc_private;
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/* If no entryID, we're looking for the first time.
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* Just store whatever we got.
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*/
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if ( fc->fss->s_eid == NOID ) {
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fc->fbase = 2;
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fc->fss->s_eid = rs->sr_entry->e_id;
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ber_dupbv( &fc->fss->s_base, &rs->sr_entry->e_nname );
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} else if ( rs->sr_entry->e_id == fc->fss->s_eid &&
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dn_match( &rs->sr_entry->e_nname, &fc->fss->s_base )) {
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/* OK, the DN is the same and the entryID is the same. */
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fc->fbase = 1;
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}
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}
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if ( rs->sr_err != LDAP_SUCCESS ) {
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Debug( LDAP_DEBUG_ANY, "findbase failed! %d\n", rs->sr_err,0,0 );
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}
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return LDAP_SUCCESS;
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}
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static Filter generic_filter = { LDAP_FILTER_PRESENT, { 0 }, NULL };
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static struct berval generic_filterstr = BER_BVC("(objectclass=*)");
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static int
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syncprov_findbase( Operation *op, fbase_cookie *fc )
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{
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opcookie *opc = op->o_callback->sc_private;
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slap_overinst *on = opc->son;
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/* Use basic parameters from syncrepl search, but use
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* current op's threadctx / tmpmemctx
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*/
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ldap_pvt_thread_mutex_lock( &fc->fss->s_mutex );
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if ( fc->fss->s_flags & PS_FIND_BASE ) {
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slap_callback cb = {0};
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Operation fop;
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SlapReply frs = { REP_RESULT };
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int rc;
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fc->fss->s_flags ^= PS_FIND_BASE;
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ldap_pvt_thread_mutex_unlock( &fc->fss->s_mutex );
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fop = *fc->fss->s_op;
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fop.o_hdr = op->o_hdr;
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fop.o_bd = op->o_bd;
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fop.o_time = op->o_time;
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fop.o_tincr = op->o_tincr;
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cb.sc_response = findbase_cb;
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cb.sc_private = fc;
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fop.o_sync_mode = 0; /* turn off sync mode */
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fop.o_managedsait = SLAP_CONTROL_CRITICAL;
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fop.o_callback = &cb;
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fop.o_tag = LDAP_REQ_SEARCH;
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fop.ors_scope = LDAP_SCOPE_BASE;
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fop.ors_limit = NULL;
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fop.ors_slimit = 1;
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fop.ors_tlimit = SLAP_NO_LIMIT;
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fop.ors_attrs = slap_anlist_no_attrs;
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fop.ors_attrsonly = 1;
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fop.ors_filter = &generic_filter;
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fop.ors_filterstr = generic_filterstr;
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fop.o_bd->bd_info = on->on_info->oi_orig;
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rc = fop.o_bd->be_search( &fop, &frs );
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fop.o_bd->bd_info = (BackendInfo *)on;
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} else {
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ldap_pvt_thread_mutex_unlock( &fc->fss->s_mutex );
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fc->fbase = 1;
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}
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/* After the first call, see if the fdn resides in the scope */
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if ( fc->fbase == 1 ) {
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switch ( fc->fss->s_op->ors_scope ) {
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case LDAP_SCOPE_BASE:
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fc->fscope = dn_match( fc->fdn, &fc->fss->s_base );
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break;
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case LDAP_SCOPE_ONELEVEL: {
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struct berval pdn;
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dnParent( fc->fdn, &pdn );
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fc->fscope = dn_match( &pdn, &fc->fss->s_base );
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break; }
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case LDAP_SCOPE_SUBTREE:
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fc->fscope = dnIsSuffix( fc->fdn, &fc->fss->s_base );
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break;
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case LDAP_SCOPE_SUBORDINATE:
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fc->fscope = dnIsSuffix( fc->fdn, &fc->fss->s_base ) &&
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!dn_match( fc->fdn, &fc->fss->s_base );
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break;
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}
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}
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if ( fc->fbase )
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return LDAP_SUCCESS;
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/* If entryID has changed, then the base of this search has
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* changed. Invalidate the psearch.
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*/
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return LDAP_NO_SUCH_OBJECT;
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}
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/* syncprov_findcsn:
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* This function has three different purposes, but they all use a search
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* that filters on entryCSN so they're combined here.
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* 1: at startup time, after a contextCSN has been read from the database,
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* we search for all entries with CSN >= contextCSN in case the contextCSN
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* was not checkpointed at the previous shutdown.
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*
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* 2: when the current contextCSN is known and we have a sync cookie, we search
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* for one entry with CSN = the cookie CSN. If not found, try <= cookie CSN.
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* If an entry is found, the cookie CSN is valid, otherwise it is stale.
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*
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* 3: during a refresh phase, we search for all entries with CSN <= the cookie
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* CSN, and generate Present records for them. We always collect this result
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* in SyncID sets, even if there's only one match.
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*/
|
|
typedef enum find_csn_t {
|
|
FIND_MAXCSN = 1,
|
|
FIND_CSN = 2,
|
|
FIND_PRESENT = 3
|
|
} find_csn_t;
|
|
|
|
static int
|
|
findmax_cb( Operation *op, SlapReply *rs )
|
|
{
|
|
if ( rs->sr_type == REP_SEARCH && rs->sr_err == LDAP_SUCCESS ) {
|
|
struct berval *maxcsn = op->o_callback->sc_private;
|
|
Attribute *a = attr_find( rs->sr_entry->e_attrs,
|
|
slap_schema.si_ad_entryCSN );
|
|
|
|
if ( a && ber_bvcmp( &a->a_vals[0], maxcsn ) > 0 ) {
|
|
maxcsn->bv_len = a->a_vals[0].bv_len;
|
|
strcpy( maxcsn->bv_val, a->a_vals[0].bv_val );
|
|
}
|
|
}
|
|
return LDAP_SUCCESS;
|
|
}
|
|
|
|
static int
|
|
findcsn_cb( Operation *op, SlapReply *rs )
|
|
{
|
|
slap_callback *sc = op->o_callback;
|
|
|
|
/* We just want to know that at least one exists, so it's OK if
|
|
* we exceed the unchecked limit.
|
|
*/
|
|
if ( rs->sr_err == LDAP_ADMINLIMIT_EXCEEDED ||
|
|
(rs->sr_type == REP_SEARCH && rs->sr_err == LDAP_SUCCESS )) {
|
|
sc->sc_private = (void *)1;
|
|
}
|
|
return LDAP_SUCCESS;
|
|
}
|
|
|
|
/* Build a list of entryUUIDs for sending in a SyncID set */
|
|
|
|
#define UUID_LEN 16
|
|
|
|
typedef struct fpres_cookie {
|
|
int num;
|
|
BerVarray uuids;
|
|
char *last;
|
|
} fpres_cookie;
|
|
|
|
static int
|
|
findpres_cb( Operation *op, SlapReply *rs )
|
|
{
|
|
slap_callback *sc = op->o_callback;
|
|
fpres_cookie *pc = sc->sc_private;
|
|
Attribute *a;
|
|
int ret = SLAP_CB_CONTINUE;
|
|
|
|
switch ( rs->sr_type ) {
|
|
case REP_SEARCH:
|
|
a = attr_find( rs->sr_entry->e_attrs, slap_schema.si_ad_entryUUID );
|
|
if ( a ) {
|
|
pc->uuids[pc->num].bv_val = pc->last;
|
|
AC_MEMCPY( pc->uuids[pc->num].bv_val, a->a_nvals[0].bv_val,
|
|
pc->uuids[pc->num].bv_len );
|
|
pc->num++;
|
|
pc->last = pc->uuids[pc->num].bv_val;
|
|
pc->uuids[pc->num].bv_val = NULL;
|
|
}
|
|
ret = LDAP_SUCCESS;
|
|
if ( pc->num != SLAP_SYNCUUID_SET_SIZE )
|
|
break;
|
|
/* FALLTHRU */
|
|
case REP_RESULT:
|
|
ret = rs->sr_err;
|
|
if ( pc->num ) {
|
|
ret = syncprov_sendinfo( op, rs, LDAP_TAG_SYNC_ID_SET, NULL,
|
|
0, pc->uuids, 0 );
|
|
pc->uuids[pc->num].bv_val = pc->last;
|
|
pc->num = 0;
|
|
pc->last = pc->uuids[0].bv_val;
|
|
}
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
return ret;
|
|
}
|
|
|
|
static int
|
|
syncprov_findcsn( Operation *op, find_csn_t mode )
|
|
{
|
|
slap_overinst *on = (slap_overinst *)op->o_bd->bd_info;
|
|
syncprov_info_t *si = on->on_bi.bi_private;
|
|
|
|
slap_callback cb = {0};
|
|
Operation fop;
|
|
SlapReply frs = { REP_RESULT };
|
|
char buf[LDAP_LUTIL_CSNSTR_BUFSIZE + STRLENOF("(entryCSN<=)")];
|
|
char cbuf[LDAP_LUTIL_CSNSTR_BUFSIZE];
|
|
struct berval maxcsn;
|
|
Filter cf, af;
|
|
#ifdef LDAP_COMP_MATCH
|
|
AttributeAssertion eq = { NULL, BER_BVNULL, NULL };
|
|
#else
|
|
AttributeAssertion eq = { NULL, BER_BVNULL };
|
|
#endif
|
|
fpres_cookie pcookie;
|
|
sync_control *srs = NULL;
|
|
struct slap_limits_set fc_limits;
|
|
int i, rc = LDAP_SUCCESS, findcsn_retry = 1;
|
|
|
|
if ( mode != FIND_MAXCSN ) {
|
|
srs = op->o_controls[slap_cids.sc_LDAPsync];
|
|
|
|
if ( srs->sr_state.ctxcsn.bv_len >= LDAP_LUTIL_CSNSTR_BUFSIZE ) {
|
|
return LDAP_OTHER;
|
|
}
|
|
}
|
|
|
|
fop = *op;
|
|
fop.o_sync_mode &= SLAP_CONTROL_MASK; /* turn off sync_mode */
|
|
/* We want pure entries, not referrals */
|
|
fop.o_managedsait = SLAP_CONTROL_CRITICAL;
|
|
|
|
cf.f_ava = &eq;
|
|
cf.f_av_desc = slap_schema.si_ad_entryCSN;
|
|
cf.f_next = NULL;
|
|
|
|
fop.o_callback = &cb;
|
|
fop.ors_limit = NULL;
|
|
fop.ors_tlimit = SLAP_NO_LIMIT;
|
|
fop.ors_filter = &cf;
|
|
fop.ors_filterstr.bv_val = buf;
|
|
|
|
again:
|
|
switch( mode ) {
|
|
case FIND_MAXCSN:
|
|
cf.f_choice = LDAP_FILTER_GE;
|
|
cf.f_av_value = si->si_ctxcsn;
|
|
fop.ors_filterstr.bv_len = sprintf( buf, "(entryCSN>=%s)",
|
|
cf.f_av_value.bv_val );
|
|
fop.ors_attrsonly = 0;
|
|
fop.ors_attrs = csn_anlist;
|
|
fop.ors_slimit = SLAP_NO_LIMIT;
|
|
cb.sc_private = &maxcsn;
|
|
cb.sc_response = findmax_cb;
|
|
strcpy( cbuf, si->si_ctxcsn.bv_val );
|
|
maxcsn.bv_val = cbuf;
|
|
maxcsn.bv_len = si->si_ctxcsn.bv_len;
|
|
break;
|
|
case FIND_CSN:
|
|
cf.f_av_value = srs->sr_state.ctxcsn;
|
|
/* Look for exact match the first time */
|
|
if ( findcsn_retry ) {
|
|
cf.f_choice = LDAP_FILTER_EQUALITY;
|
|
fop.ors_filterstr.bv_len = sprintf( buf, "(entryCSN=%s)",
|
|
cf.f_av_value.bv_val );
|
|
/* On retry, look for <= */
|
|
} else {
|
|
cf.f_choice = LDAP_FILTER_LE;
|
|
fop.ors_limit = &fc_limits;
|
|
fc_limits.lms_s_unchecked = 1;
|
|
fop.ors_filterstr.bv_len = sprintf( buf, "(entryCSN<=%s)",
|
|
cf.f_av_value.bv_val );
|
|
}
|
|
fop.ors_attrsonly = 1;
|
|
fop.ors_attrs = slap_anlist_no_attrs;
|
|
fop.ors_slimit = 1;
|
|
cb.sc_private = NULL;
|
|
cb.sc_response = findcsn_cb;
|
|
break;
|
|
case FIND_PRESENT:
|
|
af.f_choice = LDAP_FILTER_AND;
|
|
af.f_next = NULL;
|
|
af.f_and = &cf;
|
|
cf.f_choice = LDAP_FILTER_LE;
|
|
cf.f_av_value = srs->sr_state.ctxcsn;
|
|
cf.f_next = op->ors_filter;
|
|
fop.ors_filter = ⁡
|
|
filter2bv_x( &fop, fop.ors_filter, &fop.ors_filterstr );
|
|
fop.ors_attrsonly = 0;
|
|
fop.ors_attrs = uuid_anlist;
|
|
fop.ors_slimit = SLAP_NO_LIMIT;
|
|
cb.sc_private = &pcookie;
|
|
cb.sc_response = findpres_cb;
|
|
pcookie.num = 0;
|
|
|
|
/* preallocate storage for a full set */
|
|
pcookie.uuids = op->o_tmpalloc( (SLAP_SYNCUUID_SET_SIZE+1) *
|
|
sizeof(struct berval) + SLAP_SYNCUUID_SET_SIZE * UUID_LEN,
|
|
op->o_tmpmemctx );
|
|
pcookie.last = (char *)(pcookie.uuids + SLAP_SYNCUUID_SET_SIZE+1);
|
|
pcookie.uuids[0].bv_val = pcookie.last;
|
|
pcookie.uuids[0].bv_len = UUID_LEN;
|
|
for (i=1; i<SLAP_SYNCUUID_SET_SIZE; i++) {
|
|
pcookie.uuids[i].bv_val = pcookie.uuids[i-1].bv_val + UUID_LEN;
|
|
pcookie.uuids[i].bv_len = UUID_LEN;
|
|
}
|
|
break;
|
|
}
|
|
|
|
fop.o_bd->bd_info = on->on_info->oi_orig;
|
|
fop.o_bd->be_search( &fop, &frs );
|
|
fop.o_bd->bd_info = (BackendInfo *)on;
|
|
|
|
switch( mode ) {
|
|
case FIND_MAXCSN:
|
|
strcpy( si->si_ctxcsnbuf, maxcsn.bv_val );
|
|
si->si_ctxcsn.bv_len = maxcsn.bv_len;
|
|
break;
|
|
case FIND_CSN:
|
|
/* If matching CSN was not found, invalidate the context. */
|
|
if ( !cb.sc_private ) {
|
|
/* If we didn't find an exact match, then try for <= */
|
|
if ( findcsn_retry ) {
|
|
findcsn_retry = 0;
|
|
goto again;
|
|
}
|
|
rc = LDAP_NO_SUCH_OBJECT;
|
|
}
|
|
break;
|
|
case FIND_PRESENT:
|
|
op->o_tmpfree( pcookie.uuids, op->o_tmpmemctx );
|
|
op->o_tmpfree( fop.ors_filterstr.bv_val, op->o_tmpmemctx );
|
|
break;
|
|
}
|
|
|
|
return rc;
|
|
}
|
|
|
|
static void
|
|
syncprov_free_syncop( syncops *so )
|
|
{
|
|
syncres *sr, *srnext;
|
|
GroupAssertion *ga, *gnext;
|
|
|
|
ldap_pvt_thread_mutex_lock( &so->s_mutex );
|
|
if ( --so->s_inuse > 0 ) {
|
|
ldap_pvt_thread_mutex_unlock( &so->s_mutex );
|
|
return;
|
|
}
|
|
ldap_pvt_thread_mutex_unlock( &so->s_mutex );
|
|
if ( so->s_flags & PS_IS_DETACHED ) {
|
|
filter_free( so->s_op->ors_filter );
|
|
for ( ga = so->s_op->o_groups; ga; ga=gnext ) {
|
|
gnext = ga->ga_next;
|
|
ch_free( ga );
|
|
}
|
|
ch_free( so->s_op );
|
|
}
|
|
ch_free( so->s_base.bv_val );
|
|
for ( sr=so->s_res; sr; sr=srnext ) {
|
|
srnext = sr->s_next;
|
|
ch_free( sr );
|
|
}
|
|
ldap_pvt_thread_mutex_destroy( &so->s_mutex );
|
|
ch_free( so );
|
|
}
|
|
|
|
/* Send a persistent search response */
|
|
static int
|
|
syncprov_sendresp( Operation *op, opcookie *opc, syncops *so,
|
|
Entry **e, int mode )
|
|
{
|
|
slap_overinst *on = opc->son;
|
|
|
|
SlapReply rs = { REP_SEARCH };
|
|
LDAPControl *ctrls[2];
|
|
struct berval cookie;
|
|
Entry e_uuid = {0};
|
|
Attribute a_uuid = {0};
|
|
|
|
if ( so->s_op->o_abandon )
|
|
return SLAPD_ABANDON;
|
|
|
|
ctrls[1] = NULL;
|
|
slap_compose_sync_cookie( op, &cookie, &opc->sctxcsn, so->s_rid );
|
|
|
|
e_uuid.e_attrs = &a_uuid;
|
|
a_uuid.a_desc = slap_schema.si_ad_entryUUID;
|
|
a_uuid.a_nvals = &opc->suuid;
|
|
rs.sr_err = syncprov_state_ctrl( op, &rs, &e_uuid,
|
|
mode, ctrls, 0, 1, &cookie );
|
|
op->o_tmpfree( cookie.bv_val, op->o_tmpmemctx );
|
|
|
|
rs.sr_ctrls = ctrls;
|
|
op->o_bd->bd_info = (BackendInfo *)on->on_info;
|
|
switch( mode ) {
|
|
case LDAP_SYNC_ADD:
|
|
rs.sr_entry = *e;
|
|
if ( rs.sr_entry->e_private )
|
|
rs.sr_flags = REP_ENTRY_MUSTRELEASE;
|
|
if ( opc->sreference ) {
|
|
rs.sr_ref = get_entry_referrals( op, rs.sr_entry );
|
|
send_search_reference( op, &rs );
|
|
ber_bvarray_free( rs.sr_ref );
|
|
if ( !rs.sr_entry )
|
|
*e = NULL;
|
|
break;
|
|
}
|
|
/* fallthru */
|
|
case LDAP_SYNC_MODIFY:
|
|
rs.sr_entry = *e;
|
|
if ( rs.sr_entry->e_private )
|
|
rs.sr_flags = REP_ENTRY_MUSTRELEASE;
|
|
rs.sr_attrs = op->ors_attrs;
|
|
send_search_entry( op, &rs );
|
|
if ( !rs.sr_entry )
|
|
*e = NULL;
|
|
break;
|
|
case LDAP_SYNC_DELETE:
|
|
e_uuid.e_attrs = NULL;
|
|
e_uuid.e_name = opc->sdn;
|
|
e_uuid.e_nname = opc->sndn;
|
|
rs.sr_entry = &e_uuid;
|
|
if ( opc->sreference ) {
|
|
struct berval bv = BER_BVNULL;
|
|
rs.sr_ref = &bv;
|
|
send_search_reference( op, &rs );
|
|
} else {
|
|
send_search_entry( op, &rs );
|
|
}
|
|
break;
|
|
default:
|
|
assert(0);
|
|
}
|
|
/* In case someone else freed it already? */
|
|
if ( rs.sr_ctrls ) {
|
|
op->o_tmpfree( rs.sr_ctrls[0], op->o_tmpmemctx );
|
|
rs.sr_ctrls = NULL;
|
|
}
|
|
|
|
return rs.sr_err;
|
|
}
|
|
|
|
/* Play back queued responses */
|
|
static int
|
|
syncprov_qplay( Operation *op, slap_overinst *on, syncops *so )
|
|
{
|
|
syncres *sr;
|
|
Entry *e;
|
|
opcookie opc;
|
|
int rc;
|
|
|
|
opc.son = on;
|
|
op->o_bd->bd_info = (BackendInfo *)on->on_info;
|
|
|
|
for (;;) {
|
|
ldap_pvt_thread_mutex_lock( &so->s_mutex );
|
|
sr = so->s_res;
|
|
if ( sr )
|
|
so->s_res = sr->s_next;
|
|
if ( !so->s_res )
|
|
so->s_restail = NULL;
|
|
ldap_pvt_thread_mutex_unlock( &so->s_mutex );
|
|
|
|
if ( !sr || so->s_op->o_abandon )
|
|
break;
|
|
|
|
opc.sdn = sr->s_dn;
|
|
opc.sndn = sr->s_ndn;
|
|
opc.suuid = sr->s_uuid;
|
|
opc.sctxcsn = sr->s_csn;
|
|
opc.sreference = sr->s_isreference;
|
|
e = NULL;
|
|
|
|
if ( sr->s_mode != LDAP_SYNC_DELETE ) {
|
|
rc = be_entry_get_rw( op, &opc.sndn, NULL, NULL, 0, &e );
|
|
if ( rc ) {
|
|
ch_free( sr );
|
|
continue;
|
|
}
|
|
}
|
|
rc = syncprov_sendresp( op, &opc, so, &e, sr->s_mode );
|
|
|
|
if ( e ) {
|
|
be_entry_release_rw( op, e, 0 );
|
|
}
|
|
|
|
ch_free( sr );
|
|
|
|
if ( rc )
|
|
break;
|
|
}
|
|
op->o_bd->bd_info = (BackendInfo *)on;
|
|
return rc;
|
|
}
|
|
|
|
/* runqueue task for playing back queued responses */
|
|
static void *
|
|
syncprov_qtask( void *ctx, void *arg )
|
|
{
|
|
struct re_s *rtask = arg;
|
|
syncops *so = rtask->arg;
|
|
slap_overinst *on = so->s_op->o_private;
|
|
OperationBuffer opbuf;
|
|
Operation *op;
|
|
BackendDB be;
|
|
|
|
op = (Operation *) &opbuf;
|
|
*op = *so->s_op;
|
|
op->o_hdr = (Opheader *)(op+1);
|
|
op->o_controls = (void **)(op->o_hdr+1);
|
|
memset( op->o_controls, 0, SLAP_MAX_CIDS * sizeof(void *));
|
|
|
|
*op->o_hdr = *so->s_op->o_hdr;
|
|
|
|
op->o_tmpmemctx = slap_sl_mem_create(SLAP_SLAB_SIZE, SLAP_SLAB_STACK, ctx);
|
|
op->o_tmpmfuncs = &slap_sl_mfuncs;
|
|
op->o_threadctx = ctx;
|
|
|
|
/* syncprov_qplay expects a fake db */
|
|
be = *so->s_op->o_bd;
|
|
be.be_flags |= SLAP_DBFLAG_OVERLAY;
|
|
op->o_bd = &be;
|
|
op->o_private = NULL;
|
|
op->o_callback = NULL;
|
|
|
|
syncprov_qplay( op, on, so );
|
|
|
|
/* decrement use count... */
|
|
syncprov_free_syncop( so );
|
|
|
|
/* wait until we get explicitly scheduled again */
|
|
ldap_pvt_thread_mutex_lock( &slapd_rq.rq_mutex );
|
|
ldap_pvt_runqueue_stoptask( &slapd_rq, so->s_qtask );
|
|
ldap_pvt_runqueue_resched( &slapd_rq, so->s_qtask, 1 );
|
|
ldap_pvt_thread_mutex_unlock( &slapd_rq.rq_mutex );
|
|
|
|
return NULL;
|
|
}
|
|
|
|
/* Queue a persistent search response */
|
|
static int
|
|
syncprov_qresp( opcookie *opc, syncops *so, int mode )
|
|
{
|
|
syncres *sr;
|
|
|
|
sr = ch_malloc(sizeof(syncres) + opc->suuid.bv_len + 1 +
|
|
opc->sdn.bv_len + 1 + opc->sndn.bv_len + 1 + opc->sctxcsn.bv_len + 1 );
|
|
sr->s_next = NULL;
|
|
sr->s_dn.bv_val = (char *)(sr + 1);
|
|
sr->s_dn.bv_len = opc->sdn.bv_len;
|
|
sr->s_mode = mode;
|
|
sr->s_isreference = opc->sreference;
|
|
sr->s_ndn.bv_val = lutil_strcopy( sr->s_dn.bv_val,
|
|
opc->sdn.bv_val ) + 1;
|
|
sr->s_ndn.bv_len = opc->sndn.bv_len;
|
|
sr->s_uuid.bv_val = lutil_strcopy( sr->s_ndn.bv_val,
|
|
opc->sndn.bv_val ) + 1;
|
|
sr->s_uuid.bv_len = opc->suuid.bv_len;
|
|
AC_MEMCPY( sr->s_uuid.bv_val, opc->suuid.bv_val, opc->suuid.bv_len );
|
|
sr->s_csn.bv_val = sr->s_uuid.bv_val + sr->s_uuid.bv_len + 1;
|
|
sr->s_csn.bv_len = opc->sctxcsn.bv_len;
|
|
strcpy( sr->s_csn.bv_val, opc->sctxcsn.bv_val );
|
|
|
|
ldap_pvt_thread_mutex_lock( &so->s_mutex );
|
|
if ( !so->s_res ) {
|
|
so->s_res = sr;
|
|
} else {
|
|
so->s_restail->s_next = sr;
|
|
}
|
|
so->s_restail = sr;
|
|
|
|
/* If the base of the psearch was modified, check it next time round */
|
|
if ( so->s_flags & PS_WROTE_BASE ) {
|
|
so->s_flags ^= PS_WROTE_BASE;
|
|
so->s_flags |= PS_FIND_BASE;
|
|
}
|
|
if ( so->s_flags & PS_IS_DETACHED ) {
|
|
ldap_pvt_thread_mutex_lock( &slapd_rq.rq_mutex );
|
|
if ( !so->s_qtask ) {
|
|
so->s_qtask = ldap_pvt_runqueue_insert( &slapd_rq, RUNQ_INTERVAL,
|
|
syncprov_qtask, so, "syncprov_qtask",
|
|
so->s_op->o_conn->c_peer_name.bv_val );
|
|
++so->s_inuse;
|
|
} else {
|
|
if (!ldap_pvt_runqueue_isrunning( &slapd_rq, so->s_qtask ) &&
|
|
!so->s_qtask->next_sched.tv_sec ) {
|
|
so->s_qtask->interval.tv_sec = 0;
|
|
ldap_pvt_runqueue_resched( &slapd_rq, so->s_qtask, 0 );
|
|
so->s_qtask->interval.tv_sec = RUNQ_INTERVAL;
|
|
++so->s_inuse;
|
|
}
|
|
}
|
|
ldap_pvt_thread_mutex_unlock( &slapd_rq.rq_mutex );
|
|
}
|
|
ldap_pvt_thread_mutex_unlock( &so->s_mutex );
|
|
return LDAP_SUCCESS;
|
|
}
|
|
|
|
static int
|
|
syncprov_drop_psearch( syncops *so, int lock )
|
|
{
|
|
if ( so->s_flags & PS_IS_DETACHED ) {
|
|
if ( lock )
|
|
ldap_pvt_thread_mutex_lock( &so->s_op->o_conn->c_mutex );
|
|
so->s_op->o_conn->c_n_ops_executing--;
|
|
so->s_op->o_conn->c_n_ops_completed++;
|
|
LDAP_STAILQ_REMOVE( &so->s_op->o_conn->c_ops, so->s_op, slap_op,
|
|
o_next );
|
|
if ( lock )
|
|
ldap_pvt_thread_mutex_unlock( &so->s_op->o_conn->c_mutex );
|
|
}
|
|
syncprov_free_syncop( so );
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int
|
|
syncprov_ab_cleanup( Operation *op, SlapReply *rs )
|
|
{
|
|
slap_callback *sc = op->o_callback;
|
|
op->o_callback = sc->sc_next;
|
|
syncprov_drop_psearch( op->o_callback->sc_private, 0 );
|
|
op->o_tmpfree( sc, op->o_tmpmemctx );
|
|
return 0;
|
|
}
|
|
|
|
static int
|
|
syncprov_op_abandon( Operation *op, SlapReply *rs )
|
|
{
|
|
slap_overinst *on = (slap_overinst *)op->o_bd->bd_info;
|
|
syncprov_info_t *si = on->on_bi.bi_private;
|
|
syncops *so, *soprev;
|
|
|
|
ldap_pvt_thread_mutex_lock( &si->si_ops_mutex );
|
|
for ( so=si->si_ops, soprev = (syncops *)&si->si_ops; so;
|
|
soprev=so, so=so->s_next ) {
|
|
if ( so->s_op->o_connid == op->o_connid &&
|
|
so->s_op->o_msgid == op->orn_msgid ) {
|
|
so->s_op->o_abandon = 1;
|
|
soprev->s_next = so->s_next;
|
|
break;
|
|
}
|
|
}
|
|
ldap_pvt_thread_mutex_unlock( &si->si_ops_mutex );
|
|
if ( so ) {
|
|
/* Is this really a Cancel exop? */
|
|
if ( op->o_tag != LDAP_REQ_ABANDON ) {
|
|
so->s_op->o_cancel = SLAP_CANCEL_ACK;
|
|
rs->sr_err = LDAP_CANCELLED;
|
|
send_ldap_result( so->s_op, rs );
|
|
if ( so->s_flags & PS_IS_DETACHED ) {
|
|
slap_callback *cb;
|
|
cb = op->o_tmpcalloc( 1, sizeof(slap_callback), op->o_tmpmemctx );
|
|
cb->sc_cleanup = syncprov_ab_cleanup;
|
|
cb->sc_next = op->o_callback;
|
|
cb->sc_private = so;
|
|
return SLAP_CB_CONTINUE;
|
|
}
|
|
}
|
|
syncprov_drop_psearch( so, 0 );
|
|
}
|
|
return SLAP_CB_CONTINUE;
|
|
}
|
|
|
|
/* Find which persistent searches are affected by this operation */
|
|
static void
|
|
syncprov_matchops( Operation *op, opcookie *opc, int saveit )
|
|
{
|
|
slap_overinst *on = opc->son;
|
|
syncprov_info_t *si = on->on_bi.bi_private;
|
|
|
|
fbase_cookie fc;
|
|
syncops *ss, *sprev, *snext;
|
|
Entry *e;
|
|
Attribute *a;
|
|
int rc;
|
|
struct berval newdn;
|
|
int freefdn = 0;
|
|
|
|
fc.fdn = &op->o_req_ndn;
|
|
/* compute new DN */
|
|
if ( op->o_tag == LDAP_REQ_MODRDN && !saveit ) {
|
|
struct berval pdn;
|
|
if ( op->orr_nnewSup ) pdn = *op->orr_nnewSup;
|
|
else dnParent( fc.fdn, &pdn );
|
|
build_new_dn( &newdn, &pdn, &op->orr_nnewrdn, op->o_tmpmemctx );
|
|
fc.fdn = &newdn;
|
|
freefdn = 1;
|
|
}
|
|
if ( op->o_tag != LDAP_REQ_ADD ) {
|
|
op->o_bd->bd_info = (BackendInfo *)on->on_info;
|
|
rc = be_entry_get_rw( op, fc.fdn, NULL, NULL, 0, &e );
|
|
/* If we're sending responses now, make a copy and unlock the DB */
|
|
if ( e && !saveit ) {
|
|
Entry *e2 = entry_dup( e );
|
|
be_entry_release_rw( op, e, 0 );
|
|
e = e2;
|
|
}
|
|
op->o_bd->bd_info = (BackendInfo *)on;
|
|
if ( rc ) return;
|
|
} else {
|
|
e = op->ora_e;
|
|
}
|
|
|
|
if ( saveit || op->o_tag == LDAP_REQ_ADD ) {
|
|
ber_dupbv_x( &opc->sdn, &e->e_name, op->o_tmpmemctx );
|
|
ber_dupbv_x( &opc->sndn, &e->e_nname, op->o_tmpmemctx );
|
|
opc->sreference = is_entry_referral( e );
|
|
a = attr_find( e->e_attrs, slap_schema.si_ad_entryUUID );
|
|
if ( a )
|
|
ber_dupbv_x( &opc->suuid, &a->a_nvals[0], op->o_tmpmemctx );
|
|
} else if ( op->o_tag == LDAP_REQ_MODRDN && !saveit ) {
|
|
op->o_tmpfree( opc->sndn.bv_val, op->o_tmpmemctx );
|
|
op->o_tmpfree( opc->sdn.bv_val, op->o_tmpmemctx );
|
|
ber_dupbv_x( &opc->sdn, &e->e_name, op->o_tmpmemctx );
|
|
ber_dupbv_x( &opc->sndn, &e->e_nname, op->o_tmpmemctx );
|
|
}
|
|
|
|
ldap_pvt_thread_mutex_lock( &si->si_ops_mutex );
|
|
for (ss = si->si_ops, sprev = (syncops *)&si->si_ops; ss;
|
|
sprev = ss, ss=snext)
|
|
{
|
|
syncmatches *sm;
|
|
int found = 0;
|
|
|
|
snext = ss->s_next;
|
|
/* validate base */
|
|
fc.fss = ss;
|
|
fc.fbase = 0;
|
|
fc.fscope = 0;
|
|
|
|
/* If the base of the search is missing, signal a refresh */
|
|
rc = syncprov_findbase( op, &fc );
|
|
if ( rc != LDAP_SUCCESS ) {
|
|
SlapReply rs = {REP_RESULT};
|
|
send_ldap_error( ss->s_op, &rs, LDAP_SYNC_REFRESH_REQUIRED,
|
|
"search base has changed" );
|
|
sprev->s_next = snext;
|
|
syncprov_drop_psearch( ss, 1 );
|
|
ss = sprev;
|
|
continue;
|
|
}
|
|
|
|
|
|
/* If we're sending results now, look for this op in old matches */
|
|
if ( !saveit ) {
|
|
syncmatches *old;
|
|
|
|
/* Did we modify the search base? */
|
|
if ( dn_match( &op->o_req_ndn, &ss->s_base )) {
|
|
ldap_pvt_thread_mutex_lock( &ss->s_mutex );
|
|
ss->s_flags |= PS_WROTE_BASE;
|
|
ldap_pvt_thread_mutex_unlock( &ss->s_mutex );
|
|
}
|
|
|
|
for ( sm=opc->smatches, old=(syncmatches *)&opc->smatches; sm;
|
|
old=sm, sm=sm->sm_next ) {
|
|
if ( sm->sm_op == ss ) {
|
|
found = 1;
|
|
old->sm_next = sm->sm_next;
|
|
op->o_tmpfree( sm, op->o_tmpmemctx );
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
|
|
/* check if current o_req_dn is in scope and matches filter */
|
|
if ( fc.fscope && test_filter( op, e, ss->s_op->ors_filter ) ==
|
|
LDAP_COMPARE_TRUE ) {
|
|
if ( saveit ) {
|
|
sm = op->o_tmpalloc( sizeof(syncmatches), op->o_tmpmemctx );
|
|
sm->sm_next = opc->smatches;
|
|
sm->sm_op = ss;
|
|
ldap_pvt_thread_mutex_lock( &ss->s_mutex );
|
|
++ss->s_inuse;
|
|
ldap_pvt_thread_mutex_unlock( &ss->s_mutex );
|
|
opc->smatches = sm;
|
|
} else {
|
|
/* if found send UPDATE else send ADD */
|
|
syncprov_qresp( opc, ss,
|
|
found ? LDAP_SYNC_MODIFY : LDAP_SYNC_ADD );
|
|
}
|
|
} else if ( !saveit && found ) {
|
|
/* send DELETE */
|
|
syncprov_qresp( opc, ss, LDAP_SYNC_DELETE );
|
|
}
|
|
}
|
|
ldap_pvt_thread_mutex_unlock( &si->si_ops_mutex );
|
|
|
|
if ( op->o_tag != LDAP_REQ_ADD && e ) {
|
|
op->o_bd->bd_info = (BackendInfo *)on->on_info;
|
|
be_entry_release_rw( op, e, 0 );
|
|
op->o_bd->bd_info = (BackendInfo *)on;
|
|
}
|
|
if ( freefdn ) {
|
|
op->o_tmpfree( fc.fdn->bv_val, op->o_tmpmemctx );
|
|
}
|
|
}
|
|
|
|
static int
|
|
syncprov_op_cleanup( Operation *op, SlapReply *rs )
|
|
{
|
|
slap_callback *cb = op->o_callback;
|
|
opcookie *opc = cb->sc_private;
|
|
slap_overinst *on = opc->son;
|
|
syncprov_info_t *si = on->on_bi.bi_private;
|
|
syncmatches *sm, *snext;
|
|
modtarget *mt, mtdummy;
|
|
|
|
for (sm = opc->smatches; sm; sm=snext) {
|
|
snext = sm->sm_next;
|
|
syncprov_free_syncop( sm->sm_op );
|
|
op->o_tmpfree( sm, op->o_tmpmemctx );
|
|
}
|
|
|
|
/* Remove op from lock table */
|
|
mtdummy.mt_op = op;
|
|
ldap_pvt_thread_mutex_lock( &si->si_mods_mutex );
|
|
mt = avl_find( si->si_mods, &mtdummy, sp_avl_cmp );
|
|
if ( mt ) {
|
|
modinst *mi = mt->mt_mods;
|
|
|
|
/* If there are more, promote the next one */
|
|
ldap_pvt_thread_mutex_lock( &mt->mt_mutex );
|
|
if ( mi->mi_next ) {
|
|
mt->mt_mods = mi->mi_next;
|
|
mt->mt_op = mt->mt_mods->mi_op;
|
|
ldap_pvt_thread_mutex_unlock( &mt->mt_mutex );
|
|
} else {
|
|
avl_delete( &si->si_mods, mt, sp_avl_cmp );
|
|
ldap_pvt_thread_mutex_unlock( &mt->mt_mutex );
|
|
ldap_pvt_thread_mutex_destroy( &mt->mt_mutex );
|
|
ch_free( mt );
|
|
}
|
|
}
|
|
ldap_pvt_thread_mutex_unlock( &si->si_mods_mutex );
|
|
if ( !BER_BVISNULL( &opc->suuid ))
|
|
op->o_tmpfree( opc->suuid.bv_val, op->o_tmpmemctx );
|
|
if ( !BER_BVISNULL( &opc->sndn ))
|
|
op->o_tmpfree( opc->sndn.bv_val, op->o_tmpmemctx );
|
|
if ( !BER_BVISNULL( &opc->sdn ))
|
|
op->o_tmpfree( opc->sdn.bv_val, op->o_tmpmemctx );
|
|
op->o_callback = cb->sc_next;
|
|
op->o_tmpfree(cb, op->o_tmpmemctx);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static void
|
|
syncprov_checkpoint( Operation *op, SlapReply *rs, slap_overinst *on )
|
|
{
|
|
syncprov_info_t *si = on->on_bi.bi_private;
|
|
Modifications mod;
|
|
Operation opm;
|
|
SlapReply rsm = { 0 };
|
|
struct berval bv[2];
|
|
slap_callback cb = {0};
|
|
|
|
mod.sml_values = bv;
|
|
bv[1].bv_val = NULL;
|
|
bv[0] = si->si_ctxcsn;
|
|
mod.sml_nvalues = NULL;
|
|
mod.sml_desc = slap_schema.si_ad_contextCSN;
|
|
mod.sml_op = LDAP_MOD_REPLACE;
|
|
mod.sml_flags = 0;
|
|
mod.sml_next = NULL;
|
|
|
|
cb.sc_response = slap_null_cb;
|
|
opm = *op;
|
|
opm.o_tag = LDAP_REQ_MODIFY;
|
|
opm.o_callback = &cb;
|
|
opm.orm_modlist = &mod;
|
|
opm.o_req_dn = op->o_bd->be_suffix[0];
|
|
opm.o_req_ndn = op->o_bd->be_nsuffix[0];
|
|
opm.o_bd->bd_info = on->on_info->oi_orig;
|
|
opm.o_managedsait = SLAP_CONTROL_NONCRITICAL;
|
|
SLAP_DBFLAGS( opm.o_bd ) |= SLAP_DBFLAG_NOLASTMOD;
|
|
opm.o_bd->be_modify( &opm, &rsm );
|
|
SLAP_DBFLAGS( opm.o_bd ) ^= SLAP_DBFLAG_NOLASTMOD;
|
|
if ( mod.sml_next != NULL ) {
|
|
slap_mods_free( mod.sml_next, 1 );
|
|
}
|
|
}
|
|
|
|
static void
|
|
syncprov_add_slog( Operation *op, struct berval *csn )
|
|
{
|
|
opcookie *opc = op->o_callback->sc_private;
|
|
slap_overinst *on = opc->son;
|
|
syncprov_info_t *si = on->on_bi.bi_private;
|
|
sessionlog *sl;
|
|
slog_entry *se;
|
|
|
|
sl = si->si_logs;
|
|
{
|
|
/* Allocate a record. UUIDs are not NUL-terminated. */
|
|
se = ch_malloc( sizeof( slog_entry ) + opc->suuid.bv_len +
|
|
csn->bv_len + 1 );
|
|
se->se_next = NULL;
|
|
se->se_tag = op->o_tag;
|
|
|
|
se->se_uuid.bv_val = (char *)(se+1);
|
|
AC_MEMCPY( se->se_uuid.bv_val, opc->suuid.bv_val, opc->suuid.bv_len );
|
|
se->se_uuid.bv_len = opc->suuid.bv_len;
|
|
|
|
se->se_csn.bv_val = se->se_uuid.bv_val + opc->suuid.bv_len;
|
|
AC_MEMCPY( se->se_csn.bv_val, csn->bv_val, csn->bv_len );
|
|
se->se_csn.bv_val[csn->bv_len] = '\0';
|
|
se->se_csn.bv_len = csn->bv_len;
|
|
|
|
ldap_pvt_thread_mutex_lock( &sl->sl_mutex );
|
|
if ( sl->sl_head ) {
|
|
sl->sl_tail->se_next = se;
|
|
} else {
|
|
sl->sl_head = se;
|
|
}
|
|
sl->sl_tail = se;
|
|
sl->sl_num++;
|
|
while ( sl->sl_num > sl->sl_size ) {
|
|
se = sl->sl_head;
|
|
sl->sl_head = se->se_next;
|
|
strcpy( sl->sl_mincsn.bv_val, se->se_csn.bv_val );
|
|
sl->sl_mincsn.bv_len = se->se_csn.bv_len;
|
|
ch_free( se );
|
|
sl->sl_num--;
|
|
if ( !sl->sl_head ) {
|
|
sl->sl_tail = NULL;
|
|
}
|
|
}
|
|
ldap_pvt_thread_mutex_unlock( &sl->sl_mutex );
|
|
}
|
|
}
|
|
|
|
/* Just set a flag if we found the matching entry */
|
|
static int
|
|
playlog_cb( Operation *op, SlapReply *rs )
|
|
{
|
|
if ( rs->sr_type == REP_SEARCH ) {
|
|
op->o_callback->sc_private = (void *)1;
|
|
}
|
|
return rs->sr_err;
|
|
}
|
|
|
|
/* enter with sl->sl_mutex locked, release before returning */
|
|
static void
|
|
syncprov_playlog( Operation *op, SlapReply *rs, sessionlog *sl,
|
|
struct berval *oldcsn, struct berval *ctxcsn )
|
|
{
|
|
slap_overinst *on = (slap_overinst *)op->o_bd->bd_info;
|
|
slog_entry *se;
|
|
int i, j, ndel, num, nmods, mmods;
|
|
BerVarray uuids;
|
|
|
|
if ( !sl->sl_num ) {
|
|
ldap_pvt_thread_mutex_unlock( &sl->sl_mutex );
|
|
return;
|
|
}
|
|
|
|
num = sl->sl_num;
|
|
i = 0;
|
|
nmods = 0;
|
|
|
|
uuids = op->o_tmpalloc( (num+1) * sizeof( struct berval ) +
|
|
num * UUID_LEN, op->o_tmpmemctx );
|
|
|
|
uuids[0].bv_val = (char *)(uuids + num + 1);
|
|
|
|
/* Make a copy of the relevant UUIDs. Put the Deletes up front
|
|
* and everything else at the end. Do this first so we can
|
|
* unlock the list mutex.
|
|
*/
|
|
for ( se=sl->sl_head; se; se=se->se_next ) {
|
|
if ( ber_bvcmp( &se->se_csn, oldcsn ) < 0 ) continue;
|
|
if ( ber_bvcmp( &se->se_csn, ctxcsn ) > 0 ) break;
|
|
if ( se->se_tag == LDAP_REQ_DELETE ) {
|
|
j = i;
|
|
i++;
|
|
} else {
|
|
nmods++;
|
|
j = num - nmods;
|
|
}
|
|
uuids[j].bv_val = uuids[0].bv_val + (j * UUID_LEN);
|
|
AC_MEMCPY(uuids[j].bv_val, se->se_uuid.bv_val, UUID_LEN);
|
|
uuids[j].bv_len = UUID_LEN;
|
|
}
|
|
ldap_pvt_thread_mutex_unlock( &sl->sl_mutex );
|
|
|
|
ndel = i;
|
|
|
|
/* Zero out unused slots */
|
|
for ( i=ndel; i < num - nmods; i++ )
|
|
uuids[i].bv_len = 0;
|
|
|
|
/* Mods must be validated to see if they belong in this delete set.
|
|
*/
|
|
|
|
mmods = nmods;
|
|
/* Strip any duplicates */
|
|
for ( i=0; i<nmods; i++ ) {
|
|
for ( j=0; j<ndel; j++ ) {
|
|
if ( bvmatch( &uuids[j], &uuids[num - 1 - i] )) {
|
|
uuids[num - 1 - i].bv_len = 0;
|
|
mmods --;
|
|
break;
|
|
}
|
|
}
|
|
if ( uuids[num - 1 - i].bv_len == 0 ) continue;
|
|
for ( j=0; j<i; j++ ) {
|
|
if ( bvmatch( &uuids[num - 1 - j], &uuids[num - 1 - i] )) {
|
|
uuids[num - 1 - i].bv_len = 0;
|
|
mmods --;
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
|
|
if ( mmods ) {
|
|
Operation fop;
|
|
SlapReply frs = { REP_RESULT };
|
|
int rc;
|
|
Filter mf, af;
|
|
#ifdef LDAP_COMP_MATCH
|
|
AttributeAssertion eq = { NULL, BER_BVNULL, NULL };
|
|
#else
|
|
AttributeAssertion eq;
|
|
#endif
|
|
slap_callback cb = {0};
|
|
|
|
fop = *op;
|
|
|
|
fop.o_sync_mode = 0;
|
|
fop.o_callback = &cb;
|
|
fop.ors_limit = NULL;
|
|
fop.ors_tlimit = SLAP_NO_LIMIT;
|
|
fop.ors_attrs = slap_anlist_all_attributes;
|
|
fop.ors_attrsonly = 0;
|
|
fop.o_managedsait = SLAP_CONTROL_CRITICAL;
|
|
|
|
af.f_choice = LDAP_FILTER_AND;
|
|
af.f_next = NULL;
|
|
af.f_and = &mf;
|
|
mf.f_choice = LDAP_FILTER_EQUALITY;
|
|
mf.f_ava = &eq;
|
|
mf.f_av_desc = slap_schema.si_ad_entryUUID;
|
|
mf.f_next = fop.ors_filter;
|
|
|
|
fop.ors_filter = ⁡
|
|
|
|
cb.sc_response = playlog_cb;
|
|
fop.o_bd->bd_info = on->on_info->oi_orig;
|
|
|
|
for ( i=ndel; i<num; i++ ) {
|
|
if ( uuids[i].bv_len == 0 ) continue;
|
|
|
|
mf.f_av_value = uuids[i];
|
|
cb.sc_private = NULL;
|
|
fop.ors_slimit = 1;
|
|
rc = fop.o_bd->be_search( &fop, &frs );
|
|
|
|
/* If entry was not found, add to delete list */
|
|
if ( !cb.sc_private ) {
|
|
uuids[ndel++] = uuids[i];
|
|
}
|
|
}
|
|
fop.o_bd->bd_info = (BackendInfo *)on;
|
|
}
|
|
if ( ndel ) {
|
|
uuids[ndel].bv_val = NULL;
|
|
syncprov_sendinfo( op, rs, LDAP_TAG_SYNC_ID_SET, NULL, 0, uuids, 1 );
|
|
}
|
|
}
|
|
|
|
static int
|
|
syncprov_op_response( Operation *op, SlapReply *rs )
|
|
{
|
|
opcookie *opc = op->o_callback->sc_private;
|
|
slap_overinst *on = opc->son;
|
|
syncprov_info_t *si = on->on_bi.bi_private;
|
|
syncmatches *sm;
|
|
|
|
if ( rs->sr_err == LDAP_SUCCESS )
|
|
{
|
|
struct berval maxcsn = BER_BVNULL, curcsn = BER_BVNULL;
|
|
char cbuf[LDAP_LUTIL_CSNSTR_BUFSIZE];
|
|
|
|
/* Update our context CSN */
|
|
cbuf[0] = '\0';
|
|
ldap_pvt_thread_mutex_lock( &si->si_csn_mutex );
|
|
slap_get_commit_csn( op, &maxcsn, &curcsn );
|
|
if ( !BER_BVISNULL( &maxcsn ) ) {
|
|
strcpy( cbuf, maxcsn.bv_val );
|
|
if ( ber_bvcmp( &maxcsn, &si->si_ctxcsn ) > 0 ) {
|
|
strcpy( si->si_ctxcsnbuf, cbuf );
|
|
si->si_ctxcsn.bv_len = maxcsn.bv_len;
|
|
}
|
|
}
|
|
|
|
/* Don't do any processing for consumer contextCSN updates */
|
|
if ( SLAP_SYNC_SHADOW( op->o_bd ) &&
|
|
op->o_msgid == SLAP_SYNC_UPDATE_MSGID ) {
|
|
ldap_pvt_thread_mutex_unlock( &si->si_csn_mutex );
|
|
return SLAP_CB_CONTINUE;
|
|
}
|
|
|
|
si->si_numops++;
|
|
if ( si->si_chkops || si->si_chktime ) {
|
|
int do_check=0;
|
|
if ( si->si_chkops && si->si_numops >= si->si_chkops ) {
|
|
do_check = 1;
|
|
si->si_numops = 0;
|
|
}
|
|
if ( si->si_chktime &&
|
|
(op->o_time - si->si_chklast >= si->si_chktime )) {
|
|
do_check = 1;
|
|
si->si_chklast = op->o_time;
|
|
}
|
|
if ( do_check ) {
|
|
syncprov_checkpoint( op, rs, on );
|
|
}
|
|
}
|
|
ldap_pvt_thread_mutex_unlock( &si->si_csn_mutex );
|
|
|
|
opc->sctxcsn.bv_len = maxcsn.bv_len;
|
|
opc->sctxcsn.bv_val = cbuf;
|
|
|
|
/* Handle any persistent searches */
|
|
if ( si->si_ops ) {
|
|
switch(op->o_tag) {
|
|
case LDAP_REQ_ADD:
|
|
case LDAP_REQ_MODIFY:
|
|
case LDAP_REQ_MODRDN:
|
|
case LDAP_REQ_EXTENDED:
|
|
syncprov_matchops( op, opc, 0 );
|
|
break;
|
|
case LDAP_REQ_DELETE:
|
|
/* for each match in opc->smatches:
|
|
* send DELETE msg
|
|
*/
|
|
for ( sm = opc->smatches; sm; sm=sm->sm_next ) {
|
|
if ( sm->sm_op->s_op->o_abandon )
|
|
continue;
|
|
syncprov_qresp( opc, sm->sm_op, LDAP_SYNC_DELETE );
|
|
}
|
|
break;
|
|
}
|
|
}
|
|
|
|
/* Add any log records */
|
|
if ( si->si_logs && op->o_tag != LDAP_REQ_ADD ) {
|
|
syncprov_add_slog( op, &curcsn );
|
|
}
|
|
|
|
}
|
|
return SLAP_CB_CONTINUE;
|
|
}
|
|
|
|
/* We don't use a subentry to store the context CSN any more.
|
|
* We expose the current context CSN as an operational attribute
|
|
* of the suffix entry.
|
|
*/
|
|
static int
|
|
syncprov_op_compare( Operation *op, SlapReply *rs )
|
|
{
|
|
slap_overinst *on = (slap_overinst *)op->o_bd->bd_info;
|
|
syncprov_info_t *si = on->on_bi.bi_private;
|
|
int rc = SLAP_CB_CONTINUE;
|
|
|
|
if ( dn_match( &op->o_req_ndn, op->o_bd->be_nsuffix ) &&
|
|
op->oq_compare.rs_ava->aa_desc == slap_schema.si_ad_contextCSN )
|
|
{
|
|
Entry e = {0};
|
|
Attribute a = {0};
|
|
struct berval bv[2];
|
|
|
|
e.e_name = op->o_bd->be_suffix[0];
|
|
e.e_nname = op->o_bd->be_nsuffix[0];
|
|
|
|
BER_BVZERO( &bv[1] );
|
|
bv[0] = si->si_ctxcsn;
|
|
|
|
a.a_desc = slap_schema.si_ad_contextCSN;
|
|
a.a_vals = bv;
|
|
a.a_nvals = a.a_vals;
|
|
|
|
ldap_pvt_thread_mutex_lock( &si->si_csn_mutex );
|
|
|
|
rs->sr_err = access_allowed( op, &e, op->oq_compare.rs_ava->aa_desc,
|
|
&op->oq_compare.rs_ava->aa_value, ACL_COMPARE, NULL );
|
|
if ( ! rs->sr_err ) {
|
|
rs->sr_err = LDAP_INSUFFICIENT_ACCESS;
|
|
goto return_results;
|
|
}
|
|
|
|
if ( get_assert( op ) &&
|
|
( test_filter( op, &e, get_assertion( op ) ) != LDAP_COMPARE_TRUE ) )
|
|
{
|
|
rs->sr_err = LDAP_ASSERTION_FAILED;
|
|
goto return_results;
|
|
}
|
|
|
|
|
|
rs->sr_err = LDAP_COMPARE_FALSE;
|
|
|
|
if ( value_find_ex( op->oq_compare.rs_ava->aa_desc,
|
|
SLAP_MR_ATTRIBUTE_VALUE_NORMALIZED_MATCH |
|
|
SLAP_MR_ASSERTED_VALUE_NORMALIZED_MATCH,
|
|
a.a_nvals, &op->oq_compare.rs_ava->aa_value, op->o_tmpmemctx ) == 0 )
|
|
{
|
|
rs->sr_err = LDAP_COMPARE_TRUE;
|
|
}
|
|
|
|
return_results:;
|
|
|
|
ldap_pvt_thread_mutex_unlock( &si->si_csn_mutex );
|
|
|
|
send_ldap_result( op, rs );
|
|
|
|
if( rs->sr_err == LDAP_COMPARE_FALSE || rs->sr_err == LDAP_COMPARE_TRUE ) {
|
|
rs->sr_err = LDAP_SUCCESS;
|
|
}
|
|
rc = rs->sr_err;
|
|
}
|
|
|
|
return rc;
|
|
}
|
|
|
|
static int
|
|
syncprov_op_mod( Operation *op, SlapReply *rs )
|
|
{
|
|
slap_overinst *on = (slap_overinst *)op->o_bd->bd_info;
|
|
syncprov_info_t *si = on->on_bi.bi_private;
|
|
|
|
slap_callback *cb = op->o_tmpcalloc(1, sizeof(slap_callback)+
|
|
sizeof(opcookie) +
|
|
(si->si_ops ? sizeof(modinst) : 0 ),
|
|
op->o_tmpmemctx);
|
|
opcookie *opc = (opcookie *)(cb+1);
|
|
opc->son = on;
|
|
cb->sc_response = syncprov_op_response;
|
|
cb->sc_cleanup = syncprov_op_cleanup;
|
|
cb->sc_private = opc;
|
|
cb->sc_next = op->o_callback;
|
|
op->o_callback = cb;
|
|
|
|
/* If there are active persistent searches, lock this operation.
|
|
* See seqmod.c for the locking logic on its own.
|
|
*/
|
|
if ( si->si_ops ) {
|
|
modtarget *mt, mtdummy;
|
|
modinst *mi;
|
|
|
|
mi = (modinst *)(opc+1);
|
|
mi->mi_op = op;
|
|
|
|
/* See if we're already modifying this entry... */
|
|
mtdummy.mt_op = op;
|
|
ldap_pvt_thread_mutex_lock( &si->si_mods_mutex );
|
|
mt = avl_find( si->si_mods, &mtdummy, sp_avl_cmp );
|
|
if ( mt ) {
|
|
ldap_pvt_thread_mutex_lock( &mt->mt_mutex );
|
|
ldap_pvt_thread_mutex_unlock( &si->si_mods_mutex );
|
|
mt->mt_tail->mi_next = mi;
|
|
mt->mt_tail = mi;
|
|
/* wait for this op to get to head of list */
|
|
while ( mt->mt_mods != mi ) {
|
|
ldap_pvt_thread_mutex_unlock( &mt->mt_mutex );
|
|
ldap_pvt_thread_yield();
|
|
ldap_pvt_thread_mutex_lock( &mt->mt_mutex );
|
|
|
|
/* clean up if the caller is giving up */
|
|
if ( op->o_abandon ) {
|
|
modinst *m2;
|
|
for ( m2 = mt->mt_mods; m2->mi_next != mi;
|
|
m2 = m2->mi_next );
|
|
m2->mi_next = mi->mi_next;
|
|
if ( mt->mt_tail == mi ) mt->mt_tail = m2;
|
|
op->o_tmpfree( cb, op->o_tmpmemctx );
|
|
ldap_pvt_thread_mutex_unlock( &mt->mt_mutex );
|
|
return SLAPD_ABANDON;
|
|
}
|
|
}
|
|
ldap_pvt_thread_mutex_unlock( &mt->mt_mutex );
|
|
} else {
|
|
/* Record that we're modifying this entry now */
|
|
mt = ch_malloc( sizeof(modtarget) );
|
|
mt->mt_mods = mi;
|
|
mt->mt_tail = mi;
|
|
mt->mt_op = mi->mi_op;
|
|
ldap_pvt_thread_mutex_init( &mt->mt_mutex );
|
|
avl_insert( &si->si_mods, mt, sp_avl_cmp, avl_dup_error );
|
|
ldap_pvt_thread_mutex_unlock( &si->si_mods_mutex );
|
|
}
|
|
}
|
|
|
|
if (( si->si_ops || si->si_logs ) && op->o_tag != LDAP_REQ_ADD )
|
|
syncprov_matchops( op, opc, 1 );
|
|
|
|
return SLAP_CB_CONTINUE;
|
|
}
|
|
|
|
static int
|
|
syncprov_op_extended( Operation *op, SlapReply *rs )
|
|
{
|
|
if ( exop_is_write( op ))
|
|
return syncprov_op_mod( op, rs );
|
|
|
|
return SLAP_CB_CONTINUE;
|
|
}
|
|
|
|
typedef struct searchstate {
|
|
slap_overinst *ss_on;
|
|
syncops *ss_so;
|
|
int ss_present;
|
|
struct berval ss_ctxcsn;
|
|
char ss_csnbuf[LDAP_LUTIL_CSNSTR_BUFSIZE];
|
|
} searchstate;
|
|
|
|
static int
|
|
syncprov_search_cleanup( Operation *op, SlapReply *rs )
|
|
{
|
|
if ( rs->sr_ctrls ) {
|
|
op->o_tmpfree( rs->sr_ctrls[0], op->o_tmpmemctx );
|
|
op->o_tmpfree( rs->sr_ctrls, op->o_tmpmemctx );
|
|
rs->sr_ctrls = NULL;
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
static void
|
|
syncprov_detach_op( Operation *op, syncops *so, slap_overinst *on )
|
|
{
|
|
Operation *op2;
|
|
int i, alen = 0;
|
|
size_t size;
|
|
char *ptr;
|
|
GroupAssertion *g1, *g2;
|
|
|
|
/* count the search attrs */
|
|
for (i=0; op->ors_attrs && !BER_BVISNULL( &op->ors_attrs[i].an_name ); i++) {
|
|
alen += op->ors_attrs[i].an_name.bv_len + 1;
|
|
}
|
|
/* Make a new copy of the operation */
|
|
size = sizeof(Operation) + sizeof(Opheader) +
|
|
(i ? ( (i+1) * sizeof(AttributeName) + alen) : 0) +
|
|
op->o_req_dn.bv_len + 1 +
|
|
op->o_req_ndn.bv_len + 1 +
|
|
op->o_ndn.bv_len + 1 +
|
|
so->s_filterstr.bv_len + 1;
|
|
op2 = (Operation *)ch_calloc( 1, size );
|
|
op2->o_hdr = (Opheader *)(op2+1);
|
|
|
|
/* Copy the fields we care about explicitly, leave the rest alone */
|
|
*op2->o_hdr = *op->o_hdr;
|
|
op2->o_tag = op->o_tag;
|
|
op2->o_time = op->o_time;
|
|
op2->o_bd = on->on_info->oi_origdb;
|
|
op2->o_request = op->o_request;
|
|
op2->o_private = on;
|
|
|
|
if ( i ) {
|
|
op2->ors_attrs = (AttributeName *)(op2->o_hdr + 1);
|
|
ptr = (char *)(op2->ors_attrs+i+1);
|
|
for (i=0; !BER_BVISNULL( &op->ors_attrs[i].an_name ); i++) {
|
|
op2->ors_attrs[i] = op->ors_attrs[i];
|
|
op2->ors_attrs[i].an_name.bv_val = ptr;
|
|
ptr = lutil_strcopy( ptr, op->ors_attrs[i].an_name.bv_val ) + 1;
|
|
}
|
|
BER_BVZERO( &op2->ors_attrs[i].an_name );
|
|
} else {
|
|
ptr = (char *)(op2->o_hdr + 1);
|
|
}
|
|
op2->o_authz = op->o_authz;
|
|
op2->o_ndn.bv_val = ptr;
|
|
ptr = lutil_strcopy(ptr, op->o_ndn.bv_val) + 1;
|
|
op2->o_dn = op2->o_ndn;
|
|
op2->o_req_dn.bv_len = op->o_req_dn.bv_len;
|
|
op2->o_req_dn.bv_val = ptr;
|
|
ptr = lutil_strcopy(ptr, op->o_req_dn.bv_val) + 1;
|
|
op2->o_req_ndn.bv_len = op->o_req_ndn.bv_len;
|
|
op2->o_req_ndn.bv_val = ptr;
|
|
ptr = lutil_strcopy(ptr, op->o_req_ndn.bv_val) + 1;
|
|
op2->ors_filterstr.bv_val = ptr;
|
|
strcpy( ptr, so->s_filterstr.bv_val );
|
|
op2->ors_filterstr.bv_len = so->s_filterstr.bv_len;
|
|
op2->ors_filter = str2filter( ptr );
|
|
so->s_op = op2;
|
|
|
|
/* Copy any cached group ACLs individually */
|
|
op2->o_groups = NULL;
|
|
for ( g1=op->o_groups; g1; g1=g1->ga_next ) {
|
|
g2 = ch_malloc( sizeof(GroupAssertion) + g1->ga_len );
|
|
*g2 = *g1;
|
|
strcpy( g2->ga_ndn, g1->ga_ndn );
|
|
g2->ga_next = op2->o_groups;
|
|
op2->o_groups = g2;
|
|
}
|
|
/* Don't allow any further group caching */
|
|
op2->o_do_not_cache = 1;
|
|
|
|
/* Add op2 to conn so abandon will find us */
|
|
ldap_pvt_thread_mutex_lock( &op->o_conn->c_mutex );
|
|
op->o_conn->c_n_ops_executing++;
|
|
op->o_conn->c_n_ops_completed--;
|
|
LDAP_STAILQ_INSERT_TAIL( &op->o_conn->c_ops, op2, o_next );
|
|
so->s_flags |= PS_IS_DETACHED;
|
|
ldap_pvt_thread_mutex_unlock( &op->o_conn->c_mutex );
|
|
}
|
|
|
|
static int
|
|
syncprov_search_response( Operation *op, SlapReply *rs )
|
|
{
|
|
searchstate *ss = op->o_callback->sc_private;
|
|
slap_overinst *on = ss->ss_on;
|
|
sync_control *srs = op->o_controls[slap_cids.sc_LDAPsync];
|
|
|
|
if ( rs->sr_type == REP_SEARCH || rs->sr_type == REP_SEARCHREF ) {
|
|
Attribute *a;
|
|
/* If we got a referral without a referral object, there's
|
|
* something missing that we cannot replicate. Just ignore it.
|
|
* The consumer will abort because we didn't send the expected
|
|
* control.
|
|
*/
|
|
if ( !rs->sr_entry ) {
|
|
assert( rs->sr_entry != NULL );
|
|
Debug( LDAP_DEBUG_ANY, "bogus referral in context\n",0,0,0 );
|
|
return SLAP_CB_CONTINUE;
|
|
}
|
|
a = attr_find( rs->sr_entry->e_attrs, slap_schema.si_ad_entryCSN );
|
|
if ( a == NULL && rs->sr_operational_attrs != NULL ) {
|
|
a = attr_find( rs->sr_operational_attrs, slap_schema.si_ad_entryCSN );
|
|
}
|
|
if ( a ) {
|
|
/* Make sure entry is less than the snaphot'd contextCSN */
|
|
if ( ber_bvcmp( &a->a_nvals[0], &ss->ss_ctxcsn ) > 0 )
|
|
return LDAP_SUCCESS;
|
|
|
|
/* Don't send the ctx entry twice */
|
|
if ( !BER_BVISNULL( &srs->sr_state.ctxcsn ) &&
|
|
bvmatch( &a->a_nvals[0], &srs->sr_state.ctxcsn ) )
|
|
return LDAP_SUCCESS;
|
|
}
|
|
rs->sr_ctrls = op->o_tmpalloc( sizeof(LDAPControl *)*2,
|
|
op->o_tmpmemctx );
|
|
rs->sr_ctrls[1] = NULL;
|
|
rs->sr_err = syncprov_state_ctrl( op, rs, rs->sr_entry,
|
|
LDAP_SYNC_ADD, rs->sr_ctrls, 0, 0, NULL );
|
|
} else if ( rs->sr_type == REP_RESULT && rs->sr_err == LDAP_SUCCESS ) {
|
|
struct berval cookie;
|
|
|
|
slap_compose_sync_cookie( op, &cookie, &ss->ss_ctxcsn,
|
|
srs->sr_state.rid );
|
|
|
|
/* Is this a regular refresh? */
|
|
if ( !ss->ss_so ) {
|
|
rs->sr_ctrls = op->o_tmpalloc( sizeof(LDAPControl *)*2,
|
|
op->o_tmpmemctx );
|
|
rs->sr_ctrls[1] = NULL;
|
|
rs->sr_err = syncprov_done_ctrl( op, rs, rs->sr_ctrls,
|
|
0, 1, &cookie, ss->ss_present ? LDAP_SYNC_REFRESH_PRESENTS :
|
|
LDAP_SYNC_REFRESH_DELETES );
|
|
op->o_tmpfree( cookie.bv_val, op->o_tmpmemctx );
|
|
} else {
|
|
/* It's RefreshAndPersist, transition to Persist phase */
|
|
syncprov_sendinfo( op, rs, ( ss->ss_present && rs->sr_nentries ) ?
|
|
LDAP_TAG_SYNC_REFRESH_PRESENT : LDAP_TAG_SYNC_REFRESH_DELETE,
|
|
&cookie, 1, NULL, 0 );
|
|
op->o_tmpfree( cookie.bv_val, op->o_tmpmemctx );
|
|
|
|
/* Detach this Op from frontend control */
|
|
ldap_pvt_thread_mutex_lock( &ss->ss_so->s_mutex );
|
|
|
|
/* Turn off the refreshing flag */
|
|
ss->ss_so->s_flags ^= PS_IS_REFRESHING;
|
|
|
|
syncprov_detach_op( op, ss->ss_so, on );
|
|
ldap_pvt_thread_mutex_unlock( &ss->ss_so->s_mutex );
|
|
|
|
return LDAP_SUCCESS;
|
|
}
|
|
}
|
|
|
|
return SLAP_CB_CONTINUE;
|
|
}
|
|
|
|
static int
|
|
syncprov_op_search( Operation *op, SlapReply *rs )
|
|
{
|
|
slap_overinst *on = (slap_overinst *)op->o_bd->bd_info;
|
|
syncprov_info_t *si = (syncprov_info_t *)on->on_bi.bi_private;
|
|
slap_callback *cb;
|
|
int gotstate = 0, nochange = 0, do_present;
|
|
syncops *sop = NULL;
|
|
searchstate *ss;
|
|
sync_control *srs;
|
|
struct berval ctxcsn;
|
|
char csnbuf[LDAP_LUTIL_CSNSTR_BUFSIZE];
|
|
|
|
if ( !(op->o_sync_mode & SLAP_SYNC_REFRESH) ) return SLAP_CB_CONTINUE;
|
|
|
|
if ( op->ors_deref & LDAP_DEREF_SEARCHING ) {
|
|
send_ldap_error( op, rs, LDAP_PROTOCOL_ERROR, "illegal value for derefAliases" );
|
|
return rs->sr_err;
|
|
}
|
|
|
|
do_present = si->si_nopres ? 0 : 1;
|
|
|
|
srs = op->o_controls[slap_cids.sc_LDAPsync];
|
|
op->o_managedsait = SLAP_CONTROL_NONCRITICAL;
|
|
|
|
/* If this is a persistent search, set it up right away */
|
|
if ( op->o_sync_mode & SLAP_SYNC_PERSIST ) {
|
|
syncops so = {0};
|
|
fbase_cookie fc;
|
|
opcookie opc;
|
|
slap_callback sc;
|
|
|
|
fc.fss = &so;
|
|
fc.fbase = 0;
|
|
so.s_eid = NOID;
|
|
so.s_op = op;
|
|
so.s_flags = PS_IS_REFRESHING | PS_FIND_BASE;
|
|
/* syncprov_findbase expects to be called as a callback... */
|
|
sc.sc_private = &opc;
|
|
opc.son = on;
|
|
cb = op->o_callback;
|
|
op->o_callback = ≻
|
|
rs->sr_err = syncprov_findbase( op, &fc );
|
|
op->o_callback = cb;
|
|
|
|
if ( rs->sr_err != LDAP_SUCCESS ) {
|
|
send_ldap_result( op, rs );
|
|
return rs->sr_err;
|
|
}
|
|
sop = ch_malloc( sizeof( syncops ));
|
|
*sop = so;
|
|
ldap_pvt_thread_mutex_init( &sop->s_mutex );
|
|
sop->s_rid = srs->sr_state.rid;
|
|
sop->s_inuse = 1;
|
|
|
|
ldap_pvt_thread_mutex_lock( &si->si_ops_mutex );
|
|
sop->s_next = si->si_ops;
|
|
si->si_ops = sop;
|
|
ldap_pvt_thread_mutex_unlock( &si->si_ops_mutex );
|
|
}
|
|
|
|
/* snapshot the ctxcsn */
|
|
ldap_pvt_thread_mutex_lock( &si->si_csn_mutex );
|
|
strcpy( csnbuf, si->si_ctxcsnbuf );
|
|
ctxcsn.bv_len = si->si_ctxcsn.bv_len;
|
|
ldap_pvt_thread_mutex_unlock( &si->si_csn_mutex );
|
|
ctxcsn.bv_val = csnbuf;
|
|
|
|
/* If we have a cookie, handle the PRESENT lookups */
|
|
if ( !BER_BVISNULL( &srs->sr_state.ctxcsn )) {
|
|
sessionlog *sl;
|
|
|
|
/* The cookie was validated when it was parsed, just use it */
|
|
|
|
/* If just Refreshing and nothing has changed, shortcut it */
|
|
if ( bvmatch( &srs->sr_state.ctxcsn, &ctxcsn )) {
|
|
nochange = 1;
|
|
if ( !(op->o_sync_mode & SLAP_SYNC_PERSIST) ) {
|
|
LDAPControl *ctrls[2];
|
|
|
|
ctrls[0] = NULL;
|
|
ctrls[1] = NULL;
|
|
syncprov_done_ctrl( op, rs, ctrls, 0, 0,
|
|
NULL, LDAP_SYNC_REFRESH_DELETES );
|
|
rs->sr_ctrls = ctrls;
|
|
rs->sr_err = LDAP_SUCCESS;
|
|
send_ldap_result( op, rs );
|
|
rs->sr_ctrls = NULL;
|
|
return rs->sr_err;
|
|
}
|
|
goto shortcut;
|
|
}
|
|
/* Do we have a sessionlog for this search? */
|
|
sl=si->si_logs;
|
|
if ( sl ) {
|
|
ldap_pvt_thread_mutex_lock( &sl->sl_mutex );
|
|
if ( ber_bvcmp( &srs->sr_state.ctxcsn, &sl->sl_mincsn ) >= 0 ) {
|
|
do_present = 0;
|
|
/* mutex is unlocked in playlog */
|
|
syncprov_playlog( op, rs, sl, &srs->sr_state.ctxcsn, &ctxcsn );
|
|
} else {
|
|
ldap_pvt_thread_mutex_unlock( &sl->sl_mutex );
|
|
}
|
|
}
|
|
/* Is the CSN still present in the database? */
|
|
if ( syncprov_findcsn( op, FIND_CSN ) != LDAP_SUCCESS ) {
|
|
/* No, so a reload is required */
|
|
/* the 2.2 consumer doesn't send this hint */
|
|
if ( si->si_usehint && srs->sr_rhint == 0 ) {
|
|
send_ldap_error( op, rs, LDAP_SYNC_REFRESH_REQUIRED, "sync cookie is stale" );
|
|
return rs->sr_err;
|
|
}
|
|
} else {
|
|
gotstate = 1;
|
|
/* If changed and doing Present lookup, send Present UUIDs */
|
|
if ( do_present && syncprov_findcsn( op, FIND_PRESENT ) !=
|
|
LDAP_SUCCESS ) {
|
|
send_ldap_result( op, rs );
|
|
return rs->sr_err;
|
|
}
|
|
}
|
|
}
|
|
|
|
shortcut:
|
|
/* Append CSN range to search filter, save original filter
|
|
* for persistent search evaluation
|
|
*/
|
|
if ( sop ) {
|
|
sop->s_filterstr= op->ors_filterstr;
|
|
}
|
|
|
|
/* If something changed, find the changes */
|
|
if ( gotstate && !nochange ) {
|
|
Filter *fand, *fava;
|
|
|
|
fand = op->o_tmpalloc( sizeof(Filter), op->o_tmpmemctx );
|
|
fand->f_choice = LDAP_FILTER_AND;
|
|
fand->f_next = NULL;
|
|
fava = op->o_tmpalloc( sizeof(Filter), op->o_tmpmemctx );
|
|
fand->f_and = fava;
|
|
fava->f_choice = LDAP_FILTER_GE;
|
|
fava->f_ava = op->o_tmpalloc( sizeof(AttributeAssertion), op->o_tmpmemctx );
|
|
fava->f_ava->aa_desc = slap_schema.si_ad_entryCSN;
|
|
#ifdef LDAP_COMP_MATCH
|
|
fava->f_ava->aa_cf = NULL;
|
|
#endif
|
|
ber_dupbv_x( &fava->f_ava->aa_value, &srs->sr_state.ctxcsn, op->o_tmpmemctx );
|
|
fava->f_next = op->ors_filter;
|
|
op->ors_filter = fand;
|
|
filter2bv_x( op, op->ors_filter, &op->ors_filterstr );
|
|
}
|
|
|
|
/* Let our callback add needed info to returned entries */
|
|
cb = op->o_tmpcalloc(1, sizeof(slap_callback)+sizeof(searchstate), op->o_tmpmemctx);
|
|
ss = (searchstate *)(cb+1);
|
|
ss->ss_on = on;
|
|
ss->ss_so = sop;
|
|
ss->ss_present = do_present;
|
|
ss->ss_ctxcsn.bv_len = ctxcsn.bv_len;
|
|
ss->ss_ctxcsn.bv_val = ss->ss_csnbuf;
|
|
strcpy( ss->ss_ctxcsn.bv_val, ctxcsn.bv_val );
|
|
cb->sc_response = syncprov_search_response;
|
|
cb->sc_cleanup = syncprov_search_cleanup;
|
|
cb->sc_private = ss;
|
|
cb->sc_next = op->o_callback;
|
|
op->o_callback = cb;
|
|
|
|
#if 0 /* I don't think we need to shortcircuit back-bdb any more */
|
|
op->o_sync_mode &= SLAP_CONTROL_MASK;
|
|
#endif
|
|
|
|
/* If this is a persistent search and no changes were reported during
|
|
* the refresh phase, just invoke the response callback to transition
|
|
* us into persist phase
|
|
*/
|
|
if ( nochange ) {
|
|
rs->sr_err = LDAP_SUCCESS;
|
|
rs->sr_nentries = 0;
|
|
send_ldap_result( op, rs );
|
|
return rs->sr_err;
|
|
}
|
|
return SLAP_CB_CONTINUE;
|
|
}
|
|
|
|
static int
|
|
syncprov_operational(
|
|
Operation *op,
|
|
SlapReply *rs )
|
|
{
|
|
slap_overinst *on = (slap_overinst *)op->o_bd->bd_info;
|
|
syncprov_info_t *si = (syncprov_info_t *)on->on_bi.bi_private;
|
|
|
|
if ( rs->sr_entry &&
|
|
dn_match( &rs->sr_entry->e_nname, op->o_bd->be_nsuffix )) {
|
|
|
|
if ( SLAP_OPATTRS( rs->sr_attr_flags ) ||
|
|
ad_inlist( slap_schema.si_ad_contextCSN, rs->sr_attrs )) {
|
|
Attribute *a, **ap = NULL;
|
|
|
|
for ( a=rs->sr_entry->e_attrs; a; a=a->a_next ) {
|
|
if ( a->a_desc == slap_schema.si_ad_contextCSN )
|
|
break;
|
|
}
|
|
|
|
if ( !a ) {
|
|
for ( ap = &rs->sr_operational_attrs; *ap; ap=&(*ap)->a_next );
|
|
|
|
a = ch_malloc( sizeof(Attribute));
|
|
a->a_desc = slap_schema.si_ad_contextCSN;
|
|
a->a_vals = ch_malloc( 2 * sizeof(struct berval));
|
|
a->a_vals[1].bv_val = NULL;
|
|
a->a_nvals = a->a_vals;
|
|
a->a_next = NULL;
|
|
a->a_flags = 0;
|
|
*ap = a;
|
|
}
|
|
|
|
ldap_pvt_thread_mutex_lock( &si->si_csn_mutex );
|
|
if ( !ap ) {
|
|
strcpy( a->a_vals[0].bv_val, si->si_ctxcsnbuf );
|
|
} else {
|
|
ber_dupbv( &a->a_vals[0], &si->si_ctxcsn );
|
|
}
|
|
ldap_pvt_thread_mutex_unlock( &si->si_csn_mutex );
|
|
}
|
|
}
|
|
return SLAP_CB_CONTINUE;
|
|
}
|
|
|
|
enum {
|
|
SP_CHKPT = 1,
|
|
SP_SESSL,
|
|
SP_NOPRES,
|
|
SP_USEHINT
|
|
};
|
|
|
|
static ConfigDriver sp_cf_gen;
|
|
|
|
static ConfigTable spcfg[] = {
|
|
{ "syncprov-checkpoint", "ops> <minutes", 3, 3, 0, ARG_MAGIC|SP_CHKPT,
|
|
sp_cf_gen, "( OLcfgOvAt:1.1 NAME 'olcSpCheckpoint' "
|
|
"DESC 'ContextCSN checkpoint interval in ops and minutes' "
|
|
"SYNTAX OMsDirectoryString SINGLE-VALUE )", NULL, NULL },
|
|
{ "syncprov-sessionlog", "ops", 2, 2, 0, ARG_INT|ARG_MAGIC|SP_SESSL,
|
|
sp_cf_gen, "( OLcfgOvAt:1.2 NAME 'olcSpSessionlog' "
|
|
"DESC 'Session log size in ops' "
|
|
"SYNTAX OMsInteger SINGLE-VALUE )", NULL, NULL },
|
|
{ "syncprov-nopresent", NULL, 2, 2, 0, ARG_ON_OFF|ARG_MAGIC|SP_NOPRES,
|
|
sp_cf_gen, "( OLcfgOvAt:1.3 NAME 'olcSpNoPresent' "
|
|
"DESC 'Omit Present phase processing' "
|
|
"SYNTAX OMsBoolean SINGLE-VALUE )", NULL, NULL },
|
|
{ "syncprov-reloadhint", NULL, 2, 2, 0, ARG_ON_OFF|ARG_MAGIC|SP_USEHINT,
|
|
sp_cf_gen, "( OLcfgOvAt:1.4 NAME 'olcSpReloadHint' "
|
|
"DESC 'Observe Reload Hint in Request control' "
|
|
"SYNTAX OMsBoolean SINGLE-VALUE )", NULL, NULL },
|
|
{ NULL, NULL, 0, 0, 0, ARG_IGNORED }
|
|
};
|
|
|
|
static ConfigOCs spocs[] = {
|
|
{ "( OLcfgOvOc:1.1 "
|
|
"NAME 'olcSyncProvConfig' "
|
|
"DESC 'SyncRepl Provider configuration' "
|
|
"SUP olcOverlayConfig "
|
|
"MAY ( olcSpCheckpoint $ olcSpSessionlog $ olcSpNoPresent ) )",
|
|
Cft_Overlay, spcfg },
|
|
{ NULL, 0, NULL }
|
|
};
|
|
|
|
static int
|
|
sp_cf_gen(ConfigArgs *c)
|
|
{
|
|
slap_overinst *on = (slap_overinst *)c->bi;
|
|
syncprov_info_t *si = (syncprov_info_t *)on->on_bi.bi_private;
|
|
int rc = 0;
|
|
|
|
if ( c->op == SLAP_CONFIG_EMIT ) {
|
|
switch ( c->type ) {
|
|
case SP_CHKPT:
|
|
if ( si->si_chkops || si->si_chktime ) {
|
|
struct berval bv;
|
|
bv.bv_len = sprintf( c->msg, "%d %d",
|
|
si->si_chkops, si->si_chktime );
|
|
bv.bv_val = c->msg;
|
|
value_add_one( &c->rvalue_vals, &bv );
|
|
} else {
|
|
rc = 1;
|
|
}
|
|
break;
|
|
case SP_SESSL:
|
|
if ( si->si_logs ) {
|
|
c->value_int = si->si_logs->sl_size;
|
|
} else {
|
|
rc = 1;
|
|
}
|
|
break;
|
|
case SP_NOPRES:
|
|
if ( si->si_nopres ) {
|
|
c->value_int = 1;
|
|
} else {
|
|
rc = 1;
|
|
}
|
|
break;
|
|
case SP_USEHINT:
|
|
if ( si->si_usehint ) {
|
|
c->value_int = 1;
|
|
} else {
|
|
rc = 1;
|
|
}
|
|
break;
|
|
}
|
|
return rc;
|
|
} else if ( c->op == LDAP_MOD_DELETE ) {
|
|
switch ( c->type ) {
|
|
case SP_CHKPT:
|
|
si->si_chkops = 0;
|
|
si->si_chktime = 0;
|
|
break;
|
|
case SP_SESSL:
|
|
if ( si->si_logs )
|
|
si->si_logs->sl_size = 0;
|
|
else
|
|
rc = LDAP_NO_SUCH_ATTRIBUTE;
|
|
break;
|
|
case SP_NOPRES:
|
|
if ( si->si_nopres )
|
|
si->si_nopres = 0;
|
|
else
|
|
rc = LDAP_NO_SUCH_ATTRIBUTE;
|
|
break;
|
|
case SP_USEHINT:
|
|
if ( si->si_usehint )
|
|
si->si_usehint = 0;
|
|
else
|
|
rc = LDAP_NO_SUCH_ATTRIBUTE;
|
|
break;
|
|
}
|
|
return rc;
|
|
}
|
|
switch ( c->type ) {
|
|
case SP_CHKPT:
|
|
if ( lutil_atoi( &si->si_chkops, c->argv[1] ) != 0 ) {
|
|
sprintf( c->msg, "%s unable to parse checkpoint ops # \"%s\"",
|
|
c->argv[0], c->argv[1] );
|
|
Debug( LDAP_DEBUG_CONFIG, "%s: %s\n", c->log, c->msg, 0 );
|
|
return ARG_BAD_CONF;
|
|
}
|
|
if ( si->si_chkops <= 0 ) {
|
|
sprintf( c->msg, "%s invalid checkpoint ops # \"%d\"",
|
|
c->argv[0], si->si_chkops );
|
|
Debug( LDAP_DEBUG_CONFIG, "%s: %s\n", c->log, c->msg, 0 );
|
|
return ARG_BAD_CONF;
|
|
}
|
|
if ( lutil_atoi( &si->si_chktime, c->argv[2] ) != 0 ) {
|
|
sprintf( c->msg, "%s unable to parse checkpoint time \"%s\"",
|
|
c->argv[0], c->argv[1] );
|
|
Debug( LDAP_DEBUG_CONFIG, "%s: %s\n", c->log, c->msg, 0 );
|
|
return ARG_BAD_CONF;
|
|
}
|
|
if ( si->si_chktime <= 0 ) {
|
|
sprintf( c->msg, "%s invalid checkpoint time \"%d\"",
|
|
c->argv[0], si->si_chkops );
|
|
Debug( LDAP_DEBUG_CONFIG, "%s: %s\n", c->log, c->msg, 0 );
|
|
return ARG_BAD_CONF;
|
|
}
|
|
si->si_chktime *= 60;
|
|
break;
|
|
case SP_SESSL: {
|
|
sessionlog *sl;
|
|
int size = c->value_int;
|
|
|
|
if ( size < 0 ) {
|
|
sprintf( c->msg, "%s size %d is negative",
|
|
c->argv[0], size );
|
|
Debug( LDAP_DEBUG_CONFIG, "%s: %s\n", c->log, c->msg, 0 );
|
|
return ARG_BAD_CONF;
|
|
}
|
|
sl = si->si_logs;
|
|
if ( !sl ) {
|
|
sl = ch_malloc( sizeof( sessionlog ) + LDAP_LUTIL_CSNSTR_BUFSIZE );
|
|
sl->sl_mincsn.bv_val = (char *)(sl+1);
|
|
sl->sl_mincsn.bv_len = 0;
|
|
sl->sl_num = 0;
|
|
sl->sl_head = sl->sl_tail = NULL;
|
|
ldap_pvt_thread_mutex_init( &sl->sl_mutex );
|
|
si->si_logs = sl;
|
|
}
|
|
sl->sl_size = size;
|
|
}
|
|
break;
|
|
case SP_NOPRES:
|
|
si->si_nopres = c->value_int;
|
|
break;
|
|
case SP_USEHINT:
|
|
si->si_usehint = c->value_int;
|
|
break;
|
|
}
|
|
return rc;
|
|
}
|
|
|
|
/* ITS#3456 we cannot run this search on the main thread, must use a
|
|
* child thread in order to insure we have a big enough stack.
|
|
*/
|
|
static void *
|
|
syncprov_db_otask(
|
|
void *ptr
|
|
)
|
|
{
|
|
syncprov_findcsn( ptr, FIND_MAXCSN );
|
|
return NULL;
|
|
}
|
|
|
|
/* Read any existing contextCSN from the underlying db.
|
|
* Then search for any entries newer than that. If no value exists,
|
|
* just generate it. Cache whatever result.
|
|
*/
|
|
static int
|
|
syncprov_db_open(
|
|
BackendDB *be
|
|
)
|
|
{
|
|
slap_overinst *on = (slap_overinst *) be->bd_info;
|
|
syncprov_info_t *si = (syncprov_info_t *)on->on_bi.bi_private;
|
|
|
|
Connection conn = { 0 };
|
|
OperationBuffer opbuf = { 0 };
|
|
char ctxcsnbuf[LDAP_LUTIL_CSNSTR_BUFSIZE];
|
|
Operation *op = (Operation *) &opbuf;
|
|
Entry *e;
|
|
Attribute *a;
|
|
int rc;
|
|
void *thrctx = NULL;
|
|
|
|
if ( slapMode & SLAP_TOOL_MODE ) {
|
|
return 0;
|
|
}
|
|
|
|
rc = overlay_register_control( be, LDAP_CONTROL_SYNC );
|
|
if ( rc ) {
|
|
return rc;
|
|
}
|
|
|
|
thrctx = ldap_pvt_thread_pool_context();
|
|
connection_fake_init( &conn, op, thrctx );
|
|
op->o_bd = be;
|
|
op->o_dn = be->be_rootdn;
|
|
op->o_ndn = be->be_rootndn;
|
|
|
|
ctxcsnbuf[0] = '\0';
|
|
|
|
op->o_bd->bd_info = on->on_info->oi_orig;
|
|
rc = be_entry_get_rw( op, be->be_nsuffix, NULL,
|
|
slap_schema.si_ad_contextCSN, 0, &e );
|
|
|
|
if ( e ) {
|
|
ldap_pvt_thread_t tid;
|
|
|
|
a = attr_find( e->e_attrs, slap_schema.si_ad_contextCSN );
|
|
if ( a ) {
|
|
si->si_ctxcsn.bv_len = a->a_nvals[0].bv_len;
|
|
if ( si->si_ctxcsn.bv_len >= sizeof(si->si_ctxcsnbuf ))
|
|
si->si_ctxcsn.bv_len = sizeof(si->si_ctxcsnbuf)-1;
|
|
strncpy( si->si_ctxcsnbuf, a->a_nvals[0].bv_val,
|
|
si->si_ctxcsn.bv_len );
|
|
si->si_ctxcsnbuf[si->si_ctxcsn.bv_len] = '\0';
|
|
strcpy( ctxcsnbuf, si->si_ctxcsnbuf );
|
|
}
|
|
be_entry_release_rw( op, e, 0 );
|
|
if ( !BER_BVISEMPTY( &si->si_ctxcsn ) ) {
|
|
op->o_bd->bd_info = (BackendInfo *)on;
|
|
op->o_req_dn = be->be_suffix[0];
|
|
op->o_req_ndn = be->be_nsuffix[0];
|
|
op->ors_scope = LDAP_SCOPE_SUBTREE;
|
|
ldap_pvt_thread_create( &tid, 0, syncprov_db_otask, op );
|
|
ldap_pvt_thread_join( tid, NULL );
|
|
}
|
|
} else if ( SLAP_SYNC_SHADOW( op->o_bd )) {
|
|
/* If we're also a consumer, and we didn't find the context entry,
|
|
* then don't generate anything, wait for our provider to send it
|
|
* to us.
|
|
*/
|
|
goto out;
|
|
}
|
|
|
|
if ( BER_BVISEMPTY( &si->si_ctxcsn ) ) {
|
|
si->si_ctxcsn.bv_len = sizeof( si->si_ctxcsnbuf );
|
|
slap_get_csn( op, &si->si_ctxcsn, 0 );
|
|
}
|
|
|
|
/* If our ctxcsn is different from what was read from the root
|
|
* entry, make sure we do a checkpoint on close
|
|
*/
|
|
if ( strcmp( si->si_ctxcsnbuf, ctxcsnbuf )) {
|
|
si->si_numops++;
|
|
}
|
|
|
|
out:
|
|
op->o_bd->bd_info = (BackendInfo *)on;
|
|
ldap_pvt_thread_pool_context_reset( thrctx );
|
|
return 0;
|
|
}
|
|
|
|
/* Write the current contextCSN into the underlying db.
|
|
*/
|
|
static int
|
|
syncprov_db_close(
|
|
BackendDB *be
|
|
)
|
|
{
|
|
slap_overinst *on = (slap_overinst *) be->bd_info;
|
|
syncprov_info_t *si = (syncprov_info_t *)on->on_bi.bi_private;
|
|
|
|
if ( slapMode & SLAP_TOOL_MODE ) {
|
|
return 0;
|
|
}
|
|
if ( si->si_numops ) {
|
|
Connection conn;
|
|
OperationBuffer opbuf;
|
|
Operation *op = (Operation *) &opbuf;
|
|
SlapReply rs = {REP_RESULT};
|
|
void *thrctx;
|
|
|
|
thrctx = ldap_pvt_thread_pool_context();
|
|
connection_fake_init( &conn, op, thrctx );
|
|
op->o_bd = be;
|
|
op->o_dn = be->be_rootdn;
|
|
op->o_ndn = be->be_rootndn;
|
|
syncprov_checkpoint( op, &rs, on );
|
|
ldap_pvt_thread_pool_context_reset( thrctx );
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int
|
|
syncprov_db_init(
|
|
BackendDB *be
|
|
)
|
|
{
|
|
slap_overinst *on = (slap_overinst *)be->bd_info;
|
|
syncprov_info_t *si;
|
|
|
|
si = ch_calloc(1, sizeof(syncprov_info_t));
|
|
on->on_bi.bi_private = si;
|
|
ldap_pvt_thread_mutex_init( &si->si_csn_mutex );
|
|
ldap_pvt_thread_mutex_init( &si->si_ops_mutex );
|
|
ldap_pvt_thread_mutex_init( &si->si_mods_mutex );
|
|
si->si_ctxcsn.bv_val = si->si_ctxcsnbuf;
|
|
|
|
csn_anlist[0].an_desc = slap_schema.si_ad_entryCSN;
|
|
csn_anlist[0].an_name = slap_schema.si_ad_entryCSN->ad_cname;
|
|
csn_anlist[1].an_desc = slap_schema.si_ad_entryUUID;
|
|
csn_anlist[1].an_name = slap_schema.si_ad_entryUUID->ad_cname;
|
|
|
|
uuid_anlist[0].an_desc = slap_schema.si_ad_entryUUID;
|
|
uuid_anlist[0].an_name = slap_schema.si_ad_entryUUID->ad_cname;
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int
|
|
syncprov_db_destroy(
|
|
BackendDB *be
|
|
)
|
|
{
|
|
slap_overinst *on = (slap_overinst *)be->bd_info;
|
|
syncprov_info_t *si = (syncprov_info_t *)on->on_bi.bi_private;
|
|
|
|
if ( si ) {
|
|
if ( si->si_logs ) {
|
|
ch_free( si->si_logs );
|
|
}
|
|
ldap_pvt_thread_mutex_destroy( &si->si_mods_mutex );
|
|
ldap_pvt_thread_mutex_destroy( &si->si_ops_mutex );
|
|
ldap_pvt_thread_mutex_destroy( &si->si_csn_mutex );
|
|
ch_free( si );
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int syncprov_parseCtrl (
|
|
Operation *op,
|
|
SlapReply *rs,
|
|
LDAPControl *ctrl )
|
|
{
|
|
ber_tag_t tag;
|
|
BerElementBuffer berbuf;
|
|
BerElement *ber = (BerElement *)&berbuf;
|
|
ber_int_t mode;
|
|
ber_len_t len;
|
|
struct berval cookie = BER_BVNULL;
|
|
sync_control *sr;
|
|
int rhint = 0;
|
|
|
|
if ( op->o_sync != SLAP_CONTROL_NONE ) {
|
|
rs->sr_text = "Sync control specified multiple times";
|
|
return LDAP_PROTOCOL_ERROR;
|
|
}
|
|
|
|
if ( op->o_pagedresults != SLAP_CONTROL_NONE ) {
|
|
rs->sr_text = "Sync control specified with pagedResults control";
|
|
return LDAP_PROTOCOL_ERROR;
|
|
}
|
|
|
|
if ( BER_BVISEMPTY( &ctrl->ldctl_value ) ) {
|
|
rs->sr_text = "Sync control value is empty (or absent)";
|
|
return LDAP_PROTOCOL_ERROR;
|
|
}
|
|
|
|
/* Parse the control value
|
|
* syncRequestValue ::= SEQUENCE {
|
|
* mode ENUMERATED {
|
|
* -- 0 unused
|
|
* refreshOnly (1),
|
|
* -- 2 reserved
|
|
* refreshAndPersist (3)
|
|
* },
|
|
* cookie syncCookie OPTIONAL
|
|
* }
|
|
*/
|
|
|
|
ber_init2( ber, &ctrl->ldctl_value, 0 );
|
|
|
|
if ( (tag = ber_scanf( ber, "{i" /*}*/, &mode )) == LBER_ERROR ) {
|
|
rs->sr_text = "Sync control : mode decoding error";
|
|
return LDAP_PROTOCOL_ERROR;
|
|
}
|
|
|
|
switch( mode ) {
|
|
case LDAP_SYNC_REFRESH_ONLY:
|
|
mode = SLAP_SYNC_REFRESH;
|
|
break;
|
|
case LDAP_SYNC_REFRESH_AND_PERSIST:
|
|
mode = SLAP_SYNC_REFRESH_AND_PERSIST;
|
|
break;
|
|
default:
|
|
rs->sr_text = "Sync control : unknown update mode";
|
|
return LDAP_PROTOCOL_ERROR;
|
|
}
|
|
|
|
tag = ber_peek_tag( ber, &len );
|
|
|
|
if ( tag == LDAP_TAG_SYNC_COOKIE ) {
|
|
if (( ber_scanf( ber, /*{*/ "m", &cookie )) == LBER_ERROR ) {
|
|
rs->sr_text = "Sync control : cookie decoding error";
|
|
return LDAP_PROTOCOL_ERROR;
|
|
}
|
|
tag = ber_peek_tag( ber, &len );
|
|
}
|
|
if ( tag == LDAP_TAG_RELOAD_HINT ) {
|
|
if (( ber_scanf( ber, /*{*/ "b", &rhint )) == LBER_ERROR ) {
|
|
rs->sr_text = "Sync control : rhint decoding error";
|
|
return LDAP_PROTOCOL_ERROR;
|
|
}
|
|
}
|
|
if (( ber_scanf( ber, /*{*/ "}")) == LBER_ERROR ) {
|
|
rs->sr_text = "Sync control : decoding error";
|
|
return LDAP_PROTOCOL_ERROR;
|
|
}
|
|
sr = op->o_tmpcalloc( 1, sizeof(struct sync_control), op->o_tmpmemctx );
|
|
sr->sr_rhint = rhint;
|
|
if (!BER_BVISNULL(&cookie)) {
|
|
ber_dupbv_x( &sr->sr_state.octet_str, &cookie, op->o_tmpmemctx );
|
|
slap_parse_sync_cookie( &sr->sr_state, op->o_tmpmemctx );
|
|
if ( sr->sr_state.rid == -1 ) {
|
|
rs->sr_text = "Sync control : cookie parsing error";
|
|
return LDAP_PROTOCOL_ERROR;
|
|
}
|
|
}
|
|
|
|
op->o_controls[slap_cids.sc_LDAPsync] = sr;
|
|
|
|
op->o_sync = ctrl->ldctl_iscritical
|
|
? SLAP_CONTROL_CRITICAL
|
|
: SLAP_CONTROL_NONCRITICAL;
|
|
|
|
op->o_sync_mode |= mode; /* o_sync_mode shares o_sync */
|
|
|
|
return LDAP_SUCCESS;
|
|
}
|
|
|
|
/* This overlay is set up for dynamic loading via moduleload. For static
|
|
* configuration, you'll need to arrange for the slap_overinst to be
|
|
* initialized and registered by some other function inside slapd.
|
|
*/
|
|
|
|
static slap_overinst syncprov;
|
|
|
|
int
|
|
syncprov_initialize()
|
|
{
|
|
int rc;
|
|
|
|
rc = register_supported_control( LDAP_CONTROL_SYNC,
|
|
SLAP_CTRL_SEARCH, NULL,
|
|
syncprov_parseCtrl, &slap_cids.sc_LDAPsync );
|
|
if ( rc != LDAP_SUCCESS ) {
|
|
Debug( LDAP_DEBUG_ANY,
|
|
"syncprov_init: Failed to register control %d\n", rc, 0, 0 );
|
|
return rc;
|
|
}
|
|
|
|
syncprov.on_bi.bi_type = "syncprov";
|
|
syncprov.on_bi.bi_db_init = syncprov_db_init;
|
|
syncprov.on_bi.bi_db_destroy = syncprov_db_destroy;
|
|
syncprov.on_bi.bi_db_open = syncprov_db_open;
|
|
syncprov.on_bi.bi_db_close = syncprov_db_close;
|
|
|
|
syncprov.on_bi.bi_op_abandon = syncprov_op_abandon;
|
|
syncprov.on_bi.bi_op_cancel = syncprov_op_abandon;
|
|
|
|
syncprov.on_bi.bi_op_add = syncprov_op_mod;
|
|
syncprov.on_bi.bi_op_compare = syncprov_op_compare;
|
|
syncprov.on_bi.bi_op_delete = syncprov_op_mod;
|
|
syncprov.on_bi.bi_op_modify = syncprov_op_mod;
|
|
syncprov.on_bi.bi_op_modrdn = syncprov_op_mod;
|
|
syncprov.on_bi.bi_op_search = syncprov_op_search;
|
|
syncprov.on_bi.bi_extended = syncprov_op_extended;
|
|
syncprov.on_bi.bi_operational = syncprov_operational;
|
|
|
|
syncprov.on_bi.bi_cf_ocs = spocs;
|
|
|
|
generic_filter.f_desc = slap_schema.si_ad_objectClass;
|
|
|
|
rc = config_register_schema( spcfg, spocs );
|
|
if ( rc ) return rc;
|
|
|
|
return overlay_register( &syncprov );
|
|
}
|
|
|
|
#if SLAPD_OVER_SYNCPROV == SLAPD_MOD_DYNAMIC
|
|
int
|
|
init_module( int argc, char *argv[] )
|
|
{
|
|
return syncprov_initialize();
|
|
}
|
|
#endif /* SLAPD_OVER_SYNCPROV == SLAPD_MOD_DYNAMIC */
|
|
|
|
#endif /* defined(SLAPD_OVER_SYNCPROV) */
|