--- servers/slapd/overlays/syncprov.c 2004/11/27 05:17:24 1.20
+++ servers/slapd/overlays/syncprov.c 2009/11/14 20:53:06 1.296
@@ -1,7 +1,8 @@
+/* $OpenLDAP: pkg/ldap/servers/slapd/overlays/syncprov.c,v 1.295 2009/11/14 08:35:23 hyc Exp $ */
/* syncprov.c - syncrepl provider */
/* This work is part of OpenLDAP Software .
*
- * Copyright 2004 The OpenLDAP Foundation.
+ * Copyright 2004-2009 The OpenLDAP Foundation.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
@@ -24,6 +25,25 @@
#include
#include "lutil.h"
#include "slap.h"
+#include "config.h"
+#include "ldap_rq.h"
+
+#ifdef LDAP_DEVEL
+#define CHECK_CSN 1
+#endif
+
+/* A modify request on a particular entry */
+typedef struct modinst {
+ struct modinst *mi_next;
+ Operation *mi_op;
+} modinst;
+
+typedef struct modtarget {
+ struct modinst *mt_mods;
+ struct modinst *mt_tail;
+ Operation *mt_op;
+ ldap_pvt_thread_mutex_t mt_mutex;
+} modtarget;
/* A queued result of a persistent search */
typedef struct syncres {
@@ -42,58 +62,96 @@ typedef struct syncops {
struct berval s_base; /* ndn of search base */
ID s_eid; /* entryID of search base */
Operation *s_op; /* search op */
- long s_sid;
- long s_rid;
+ int s_rid;
+ int s_sid;
struct berval s_filterstr;
int s_flags; /* search status */
+#define PS_IS_REFRESHING 0x01
+#define PS_IS_DETACHED 0x02
+#define PS_WROTE_BASE 0x04
+#define PS_FIND_BASE 0x08
+#define PS_FIX_FILTER 0x10
+#define PS_TASK_QUEUED 0x20
+
int s_inuse; /* reference count */
struct syncres *s_res;
struct syncres *s_restail;
ldap_pvt_thread_mutex_t s_mutex;
} syncops;
-static int sync_cid;
-
/* A received sync control */
typedef struct sync_control {
struct sync_cookie sr_state;
int sr_rhint;
} sync_control;
+#if 0 /* moved back to slap.h */
+#define o_sync o_ctrlflag[slap_cids.sc_LDAPsync]
+#endif
/* o_sync_mode uses data bits of o_sync */
-#define o_sync o_ctrlflag[sync_cid]
-#define o_sync_mode o_ctrlflag[sync_cid]
+#define o_sync_mode o_ctrlflag[slap_cids.sc_LDAPsync]
#define SLAP_SYNC_NONE (LDAP_SYNC_NONE<o_tmpmemctx );
- ctrls[num_ctrls] = slap_sl_malloc ( sizeof ( LDAPControl ), op->o_tmpmemctx );
+ ctrls[num_ctrls] = op->o_tmpalloc( sizeof ( LDAPControl ), op->o_tmpmemctx );
for ( a = e->e_attrs; a != NULL; a = a->a_next ) {
AttributeDescription *desc = a->a_desc;
@@ -140,6 +197,8 @@ syncprov_state_ctrl(
}
}
+ /* FIXME: what if entryuuid is NULL or empty ? */
+
if ( send_cookie && cookie ) {
ber_printf( ber, "{eOON}",
entry_sync_state, &entryuuid_bv, cookie );
@@ -165,6 +224,7 @@ syncprov_state_ctrl(
return LDAP_SUCCESS;
}
+/* Build a LDAPsync final state control */
static int
syncprov_done_ctrl(
Operation *op,
@@ -182,7 +242,7 @@ syncprov_done_ctrl(
ber_init2( ber, NULL, LBER_USE_DER );
ber_set_option( ber, LBER_OPT_BER_MEMCTX, &op->o_tmpmemctx );
- ctrls[num_ctrls] = ch_malloc ( sizeof ( LDAPControl ) );
+ ctrls[num_ctrls] = op->o_tmpalloc( sizeof ( LDAPControl ), op->o_tmpmemctx );
ber_printf( ber, "{" );
if ( send_cookie && cookie ) {
@@ -191,7 +251,7 @@ syncprov_done_ctrl(
if ( refreshDeletes == LDAP_SYNC_REFRESH_DELETES ) {
ber_printf( ber, "b", refreshDeletes );
}
- ber_printf( ber, "N}" );
+ ber_printf( ber, "N}" );
ctrls[num_ctrls]->ldctl_oid = LDAP_CONTROL_SYNC_DONE;
ctrls[num_ctrls]->ldctl_iscritical = (op->o_sync == SLAP_CONTROL_CRITICAL);
@@ -210,60 +270,6 @@ syncprov_done_ctrl(
return LDAP_SUCCESS;
}
-
-static int
-syncprov_state_ctrl_from_slog(
- Operation *op,
- SlapReply *rs,
- struct slog_entry *slog_e,
- int entry_sync_state,
- LDAPControl **ctrls,
- int num_ctrls,
- int send_cookie,
- struct berval *cookie)
-{
- Attribute* a;
- int ret;
- int res;
- const char *text = NULL;
-
- BerElementBuffer berbuf;
- BerElement *ber = (BerElement *)&berbuf;
-
- struct berval entryuuid_bv = BER_BVNULL;
-
- ber_init2( ber, NULL, LBER_USE_DER );
- ber_set_option( ber, LBER_OPT_BER_MEMCTX, &op->o_tmpmemctx );
-
- ctrls[num_ctrls] = ch_malloc ( sizeof ( LDAPControl ) );
-
- entryuuid_bv = slog_e->sl_uuid;
-
- if ( send_cookie && cookie ) {
- ber_printf( ber, "{eOON}",
- entry_sync_state, &entryuuid_bv, cookie );
- } else {
- ber_printf( ber, "{eON}",
- entry_sync_state, &entryuuid_bv );
- }
-
- ctrls[num_ctrls]->ldctl_oid = LDAP_CONTROL_SYNC_STATE;
- ctrls[num_ctrls]->ldctl_iscritical = (op->o_sync == SLAP_CONTROL_CRITICAL);
- ret = ber_flatten2( ber, &ctrls[num_ctrls]->ldctl_value, 1 );
-
- ber_free_buf( ber );
-
- if ( ret < 0 ) {
- Debug( LDAP_DEBUG_TRACE,
- "slap_build_sync_ctrl: ber_flatten2 failed\n",
- 0, 0, 0 );
- send_ldap_error( op, rs, LDAP_OTHER, "internal error" );
- return ret;
- }
-
- return LDAP_SUCCESS;
-}
-
static int
syncprov_sendinfo(
Operation *op,
@@ -328,6 +334,7 @@ syncprov_sendinfo(
return ret;
}
+ rs->sr_rspoid = LDAP_SYNC_INFO;
rs->sr_rspdata = &rspdata;
send_ldap_intermediate( op, rs );
rs->sr_rspdata = NULL;
@@ -335,6 +342,21 @@ syncprov_sendinfo(
return LDAP_SUCCESS;
}
+
+/* Find a modtarget in an AVL tree */
+static int
+sp_avl_cmp( const void *c1, const void *c2 )
+{
+ const modtarget *m1, *m2;
+ int rc;
+
+ m1 = c1; m2 = c2;
+ rc = m1->mt_op->o_req_ndn.bv_len - m2->mt_op->o_req_ndn.bv_len;
+
+ if ( rc ) return rc;
+ return ber_bvcmp( &m1->mt_op->o_req_ndn, &m2->mt_op->o_req_ndn );
+}
+
/* syncprov_findbase:
* finds the true DN of the base of a search (with alias dereferencing) and
* checks to make sure the base entry doesn't get replaced with a different
@@ -356,77 +378,94 @@ findbase_cb( Operation *op, SlapReply *r
* Just store whatever we got.
*/
if ( fc->fss->s_eid == NOID ) {
- fc->fbase = 1;
+ fc->fbase = 2;
fc->fss->s_eid = rs->sr_entry->e_id;
ber_dupbv( &fc->fss->s_base, &rs->sr_entry->e_nname );
} else if ( rs->sr_entry->e_id == fc->fss->s_eid &&
dn_match( &rs->sr_entry->e_nname, &fc->fss->s_base )) {
- /* OK, the DN is the same and the entryID is the same. Now
- * see if the fdn resides in the scope.
- */
+ /* OK, the DN is the same and the entryID is the same. */
fc->fbase = 1;
- switch ( fc->fss->s_op->ors_scope ) {
- case LDAP_SCOPE_BASE:
- fc->fscope = dn_match( fc->fdn, &rs->sr_entry->e_nname );
- break;
- case LDAP_SCOPE_ONELEVEL: {
- struct berval pdn;
- dnParent( fc->fdn, &pdn );
- fc->fscope = dn_match( &pdn, &rs->sr_entry->e_nname );
- break; }
- case LDAP_SCOPE_SUBTREE:
- fc->fscope = dnIsSuffix( fc->fdn, &rs->sr_entry->e_nname );
- break;
-#ifdef LDAP_SCOPE_SUBORDINATE
- case LDAP_SCOPE_SUBORDINATE:
- fc->fscope = dnIsSuffix( fc->fdn, &rs->sr_entry->e_nname ) &&
- !dn_match( fc->fdn, &rs->sr_entry->e_nname );
- break;
-#endif
- }
}
}
+ if ( rs->sr_err != LDAP_SUCCESS ) {
+ Debug( LDAP_DEBUG_ANY, "findbase failed! %d\n", rs->sr_err,0,0 );
+ }
return LDAP_SUCCESS;
}
+static Filter generic_filter = { LDAP_FILTER_PRESENT, { 0 }, NULL };
+static struct berval generic_filterstr = BER_BVC("(objectclass=*)");
+
static int
syncprov_findbase( Operation *op, fbase_cookie *fc )
{
- opcookie *opc = op->o_callback->sc_private;
- slap_overinst *on = opc->son;
- syncprov_info_t *si = on->on_bi.bi_private;
-
- slap_callback cb = {0};
- Operation fop;
- SlapReply frs = { REP_RESULT };
- int rc;
-
- fop = *op;
+ /* Use basic parameters from syncrepl search, but use
+ * current op's threadctx / tmpmemctx
+ */
+ ldap_pvt_thread_mutex_lock( &fc->fss->s_mutex );
+ if ( fc->fss->s_flags & PS_FIND_BASE ) {
+ slap_callback cb = {0};
+ Operation fop;
+ SlapReply frs = { REP_RESULT };
+ int rc;
+
+ fc->fss->s_flags ^= PS_FIND_BASE;
+ ldap_pvt_thread_mutex_unlock( &fc->fss->s_mutex );
+
+ fop = *fc->fss->s_op;
+
+ fop.o_bd = fop.o_bd->bd_self;
+ fop.o_hdr = op->o_hdr;
+ fop.o_time = op->o_time;
+ fop.o_tincr = op->o_tincr;
- cb.sc_response = findbase_cb;
- cb.sc_private = fc;
+ cb.sc_response = findbase_cb;
+ cb.sc_private = fc;
- fop.o_sync_mode &= SLAP_CONTROL_MASK; /* turn off sync mode */
- fop.o_callback = &cb;
- fop.o_tag = LDAP_REQ_SEARCH;
- fop.ors_scope = LDAP_SCOPE_BASE;
- fop.ors_deref = fc->fss->s_op->ors_deref;
- fop.ors_slimit = 1;
- fop.ors_tlimit = SLAP_NO_LIMIT;
- fop.ors_attrs = slap_anlist_no_attrs;
- fop.ors_attrsonly = 1;
- fop.ors_filter = fc->fss->s_op->ors_filter;
- fop.ors_filterstr = fc->fss->s_op->ors_filterstr;
+ fop.o_sync_mode = 0; /* turn off sync mode */
+ fop.o_managedsait = SLAP_CONTROL_CRITICAL;
+ fop.o_callback = &cb;
+ fop.o_tag = LDAP_REQ_SEARCH;
+ fop.ors_scope = LDAP_SCOPE_BASE;
+ fop.ors_limit = NULL;
+ fop.ors_slimit = 1;
+ fop.ors_tlimit = SLAP_NO_LIMIT;
+ fop.ors_attrs = slap_anlist_no_attrs;
+ fop.ors_attrsonly = 1;
+ fop.ors_filter = &generic_filter;
+ fop.ors_filterstr = generic_filterstr;
- fop.o_req_ndn = fc->fss->s_op->o_req_ndn;
+ rc = fop.o_bd->be_search( &fop, &frs );
+ } else {
+ ldap_pvt_thread_mutex_unlock( &fc->fss->s_mutex );
+ fc->fbase = 1;
+ }
- fop.o_bd->bd_info = on->on_info->oi_orig;
- rc = fop.o_bd->be_search( &fop, &frs );
- fop.o_bd->bd_info = (BackendInfo *)on;
+ /* After the first call, see if the fdn resides in the scope */
+ if ( fc->fbase == 1 ) {
+ switch ( fc->fss->s_op->ors_scope ) {
+ case LDAP_SCOPE_BASE:
+ fc->fscope = dn_match( fc->fdn, &fc->fss->s_base );
+ break;
+ case LDAP_SCOPE_ONELEVEL: {
+ struct berval pdn;
+ dnParent( fc->fdn, &pdn );
+ fc->fscope = dn_match( &pdn, &fc->fss->s_base );
+ break; }
+ case LDAP_SCOPE_SUBTREE:
+ fc->fscope = dnIsSuffix( fc->fdn, &fc->fss->s_base );
+ break;
+ case LDAP_SCOPE_SUBORDINATE:
+ fc->fscope = dnIsSuffix( fc->fdn, &fc->fss->s_base ) &&
+ !dn_match( fc->fdn, &fc->fss->s_base );
+ break;
+ }
+ }
- if ( fc->fbase ) return LDAP_SUCCESS;
+ if ( fc->fbase )
+ return LDAP_SUCCESS;
/* If entryID has changed, then the base of this search has
* changed. Invalidate the psearch.
@@ -437,68 +476,64 @@ syncprov_findbase( Operation *op, fbase_
/* syncprov_findcsn:
* This function has three different purposes, but they all use a search
* that filters on entryCSN so they're combined here.
- * 1: when the current contextCSN is unknown (i.e., at server start time)
- * and a syncrepl search has arrived with a cookie, we search for all entries
- * with CSN >= the cookie CSN, and store the maximum as our contextCSN. Also,
- * we expect to find the cookie CSN in the search results, and note if we did
- * or not. If not, we assume the cookie is stale. (This may be too restrictive,
- * notice case 2.)
+ * 1: at startup time, after a contextCSN has been read from the database,
+ * we search for all entries with CSN >= contextCSN in case the contextCSN
+ * was not checkpointed at the previous shutdown.
*
* 2: when the current contextCSN is known and we have a sync cookie, we search
- * for one entry with CSN <= the cookie CSN. (Used to search for =.) If an
- * entry is found, the cookie CSN is valid, otherwise it is stale. Case 1 is
- * considered a special case of case 2, and both are generally called the
- * "find CSN" task.
+ * for one entry with CSN = the cookie CSN. If not found, try <= cookie CSN.
+ * If an entry is found, the cookie CSN is valid, otherwise it is stale.
*
* 3: during a refresh phase, we search for all entries with CSN <= the cookie
* CSN, and generate Present records for them. We always collect this result
* in SyncID sets, even if there's only one match.
*/
-#define FIND_CSN 1
-#define FIND_PRESENT 2
+typedef enum find_csn_t {
+ FIND_MAXCSN = 1,
+ FIND_CSN = 2,
+ FIND_PRESENT = 3
+} find_csn_t;
-typedef struct fcsn_cookie {
- struct berval maxcsn;
- int gotmatch;
-} fcsn_cookie;
+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 &&
+ slap_parse_csn_sid( &a->a_vals[0] ) == slap_serverID ) {
+ 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;
- if ( rs->sr_type == REP_SEARCH && rs->sr_err == LDAP_SUCCESS ) {
- /* If the private pointer is set, it points to an fcsn_cookie
- * and we want to record the maxcsn and match state.
- */
- if ( sc->sc_private ) {
- int i;
- fcsn_cookie *fc = sc->sc_private;
- sync_control *srs = op->o_controls[sync_cid];
- Attribute *a = attr_find(rs->sr_entry->e_attrs,
- slap_schema.si_ad_entryCSN );
- i = ber_bvcmp( &a->a_vals[0], srs->sr_state.ctxcsn );
- if ( i == 0 ) fc->gotmatch = 1;
- i = ber_bvcmp( &a->a_vals[0], &fc->maxcsn );
- if ( i > 0 ) {
- fc->maxcsn.bv_len = a->a_vals[0].bv_len;
- strcpy(fc->maxcsn.bv_val, a->a_vals[0].bv_val );
- }
- } else {
- /* Otherwise, if the private pointer is not set, we just
- * want to know if any entry matched the filter.
- */
- sc->sc_private = (void *)1;
- }
+ /* 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
@@ -506,41 +541,42 @@ findpres_cb( Operation *op, SlapReply *r
{
slap_callback *sc = op->o_callback;
fpres_cookie *pc = sc->sc_private;
+ Attribute *a;
int ret = SLAP_CB_CONTINUE;
- if ( rs->sr_type == REP_SEARCH ) {
- ret = slap_build_syncUUID_set( op, &pc->uuids, rs->sr_entry );
- if ( ret > 0 ) {
+ 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++;
- ret = LDAP_SUCCESS;
- if ( pc->num == SLAP_SYNCUUID_SET_SIZE ) {
- rs->sr_rspoid = LDAP_SYNC_INFO;
- ret = syncprov_sendinfo( op, rs, LDAP_TAG_SYNC_ID_SET, NULL,
- 0, pc->uuids, 0 );
- ber_bvarray_free_x( pc->uuids, op->o_tmpmemctx );
- pc->uuids = NULL;
- pc->num = 0;
- }
- } else {
- ret = LDAP_OTHER;
+ pc->last = pc->uuids[pc->num].bv_val;
+ pc->uuids[pc->num].bv_val = NULL;
}
- } else if ( rs->sr_type == REP_RESULT ) {
+ ret = LDAP_SUCCESS;
+ if ( pc->num != SLAP_SYNCUUID_SET_SIZE )
+ break;
+ /* FALLTHRU */
+ case REP_RESULT:
ret = rs->sr_err;
if ( pc->num ) {
- rs->sr_rspoid = LDAP_SYNC_INFO;
ret = syncprov_sendinfo( op, rs, LDAP_TAG_SYNC_ID_SET, NULL,
0, pc->uuids, 0 );
- ber_bvarray_free_x( pc->uuids, op->o_tmpmemctx );
- pc->uuids = NULL;
+ 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, int mode )
+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;
@@ -548,216 +584,562 @@ syncprov_findcsn( Operation *op, int mod
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 fbuf;
+ char buf[LDAP_PVT_CSNSTR_BUFSIZE + STRLENOF("(entryCSN<=)")];
+ char cbuf[LDAP_PVT_CSNSTR_BUFSIZE];
+ struct berval maxcsn;
Filter cf;
- AttributeAssertion eq;
- int rc;
- fcsn_cookie fcookie;
+ AttributeAssertion eq = ATTRIBUTEASSERTION_INIT;
fpres_cookie pcookie;
- int locked = 0;
- sync_control *srs = op->o_controls[sync_cid];
+ sync_control *srs = NULL;
+ struct slap_limits_set fc_limits;
+ int i, rc = LDAP_SUCCESS, findcsn_retry = 1;
+ int maxid;
- if ( srs->sr_state.ctxcsn->bv_len >= LDAP_LUTIL_CSNSTR_BUFSIZE ) {
- return LDAP_OTHER;
+ if ( mode != FIND_MAXCSN ) {
+ srs = op->o_controls[slap_cids.sc_LDAPsync];
}
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;
- fbuf.bv_val = buf;
- if ( mode == FIND_CSN ) {
- if ( !si->si_gotcsn ) {
- /* If we don't know the current ctxcsn, find it */
- ldap_pvt_thread_mutex_lock( &si->si_csn_mutex );
- locked = 1;
- }
- if ( !si->si_gotcsn ) {
- cf.f_choice = LDAP_FILTER_GE;
- fop.ors_attrsonly = 0;
- fop.ors_attrs = csn_anlist;
- fop.ors_slimit = SLAP_NO_LIMIT;
- cb.sc_private = &fcookie;
- fcookie.maxcsn.bv_val = cbuf;
- fcookie.maxcsn.bv_len = 0;
- fcookie.gotmatch = 0;
- fbuf.bv_len = sprintf( buf, "(entryCSN>=%s)", srs->sr_state.ctxcsn->bv_val );
- } else {
- if ( locked ) {
- ldap_pvt_thread_mutex_unlock( &si->si_csn_mutex );
- locked = 0;
+ cf.f_ava = &eq;
+ cf.f_av_desc = slap_schema.si_ad_entryCSN;
+ BER_BVZERO( &cf.f_av_value );
+ 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;
+ /* If there are multiple CSNs, use the one with our serverID */
+ for ( i=0; isi_numcsns; i++) {
+ if ( slap_serverID == si->si_sids[i] ) {
+ maxid = i;
+ break;
}
+ }
+ if ( i == si->si_numcsns ) {
+ /* No match: this is multimaster, and none of the content in the DB
+ * originated locally. Treat like no CSN.
+ */
+ return LDAP_NO_SUCH_OBJECT;
+ }
+ cf.f_av_value = si->si_ctxcsn[maxid];
+ fop.ors_filterstr.bv_len = snprintf( buf, sizeof( buf ),
+ "(entryCSN>=%s)", cf.f_av_value.bv_val );
+ if ( fop.ors_filterstr.bv_len >= sizeof( buf ) ) {
+ return LDAP_OTHER;
+ }
+ 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, cf.f_av_value.bv_val );
+ maxcsn.bv_val = cbuf;
+ maxcsn.bv_len = cf.f_av_value.bv_len;
+ break;
+ case FIND_CSN:
+ if ( BER_BVISEMPTY( &cf.f_av_value )) {
+ cf.f_av_value = srs->sr_state.ctxcsn[0];
+ /* If there are multiple CSNs, use the smallest */
+ for ( i=1; isr_state.numcsns; i++ ) {
+ if ( ber_bvcmp( &cf.f_av_value, &srs->sr_state.ctxcsn[i] )
+ > 0 ) {
+ cf.f_av_value = srs->sr_state.ctxcsn[i];
+ }
+ }
+ }
+ /* Look for exact match the first time */
+ if ( findcsn_retry ) {
+ cf.f_choice = LDAP_FILTER_EQUALITY;
+ fop.ors_filterstr.bv_len = snprintf( buf, sizeof( buf ),
+ "(entryCSN=%s)", cf.f_av_value.bv_val );
+ /* On retry, look for <= */
+ } else {
cf.f_choice = LDAP_FILTER_LE;
- fop.ors_attrsonly = 1;
- fop.ors_attrs = slap_anlist_no_attrs;
- fop.ors_slimit = 1;
- cb.sc_private = NULL;
- fbuf.bv_len = sprintf( buf, "(entryCSN<=%s)", srs->sr_state.ctxcsn->bv_val );
+ fop.ors_limit = &fc_limits;
+ memset( &fc_limits, 0, sizeof( fc_limits ));
+ fc_limits.lms_s_unchecked = 1;
+ fop.ors_filterstr.bv_len = snprintf( buf, sizeof( buf ),
+ "(entryCSN<=%s)", cf.f_av_value.bv_val );
+ }
+ if ( fop.ors_filterstr.bv_len >= sizeof( buf ) ) {
+ return LDAP_OTHER;
}
+ fop.ors_attrsonly = 1;
+ fop.ors_attrs = slap_anlist_no_attrs;
+ fop.ors_slimit = 1;
+ cb.sc_private = NULL;
cb.sc_response = findcsn_cb;
-
- } else if ( mode == FIND_PRESENT ) {
- cf.f_choice = LDAP_FILTER_LE;
+ break;
+ case FIND_PRESENT:
+ fop.ors_filter = op->ors_filter;
+ fop.ors_filterstr = op->ors_filterstr;
fop.ors_attrsonly = 0;
fop.ors_attrs = uuid_anlist;
fop.ors_slimit = SLAP_NO_LIMIT;
- /* We want pure entries, not referrals */
- fop.o_managedsait = SLAP_CONTROL_CRITICAL;
cb.sc_private = &pcookie;
cb.sc_response = findpres_cb;
pcookie.num = 0;
- pcookie.uuids = NULL;
- fbuf.bv_len = sprintf( buf, "(entryCSN<=%s)", srs->sr_state.ctxcsn->bv_val );
- }
- cf.f_ava = &eq;
- cf.f_av_desc = slap_schema.si_ad_entryCSN;
- cf.f_av_value = *srs->sr_state.ctxcsn;
- cf.f_next = NULL;
- fop.o_callback = &cb;
- fop.ors_tlimit = SLAP_NO_LIMIT;
- fop.ors_filter = &cf;
- fop.ors_filterstr = fbuf;
+ /* 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; ibd_info = on->on_info->oi_orig;
- rc = fop.o_bd->be_search( &fop, &frs );
+ fop.o_bd->bd_info = (BackendInfo *)on->on_info;
+ fop.o_bd->be_search( &fop, &frs );
fop.o_bd->bd_info = (BackendInfo *)on;
- if ( mode == FIND_CSN ) {
- if ( !si->si_gotcsn ) {
- strcpy(si->si_ctxcsnbuf, fcookie.maxcsn.bv_val);
- si->si_ctxcsn.bv_len = fcookie.maxcsn.bv_len;
- si->si_gotcsn = 1;
- ldap_pvt_thread_mutex_unlock( &si->si_csn_mutex );
- if ( fcookie.gotmatch ) return LDAP_SUCCESS;
-
- } else {
- if ( cb.sc_private ) return LDAP_SUCCESS;
+ switch( mode ) {
+ case FIND_MAXCSN:
+ if ( ber_bvcmp( &si->si_ctxcsn[maxid], &maxcsn )) {
+#ifdef CHECK_CSN
+ Syntax *syn = slap_schema.si_ad_contextCSN->ad_type->sat_syntax;
+ assert( !syn->ssyn_validate( syn, &maxcsn ));
+#endif
+ ber_bvreplace( &si->si_ctxcsn[maxid], &maxcsn );
+ si->si_numops++; /* ensure a checkpoint */
}
- } else if ( mode == FIND_PRESENT ) {
- return LDAP_SUCCESS;
+ 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 );
+ break;
}
- /* If matching CSN was not found, invalidate the context. */
- return LDAP_NO_SUCH_OBJECT;
+ return rc;
}
-/* Queue a persistent search response if still in Refresh stage */
-static int
-syncprov_qresp( opcookie *opc, syncops *so, int mode )
+static void
+syncprov_free_syncop( syncops *so )
{
- 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_mode = mode;
- sr->s_isreference = opc->sreference;
- sr->s_ndn.bv_val = lutil_strcopy( sr->s_dn.bv_val, opc->sdn.bv_val );
- *(sr->s_ndn.bv_val++) = '\0';
- sr->s_uuid.bv_val = lutil_strcopy( sr->s_ndn.bv_val, opc->sndn.bv_val );
- *(sr->s_uuid.bv_val++) = '\0';
- sr->s_csn.bv_val = lutil_strcopy( sr->s_uuid.bv_val, opc->suuid.bv_val );
+ syncres *sr, *srnext;
+ GroupAssertion *ga, *gnext;
- if ( !so->s_res ) {
- so->s_res = sr;
- } else {
- so->s_restail->s_next = sr;
+ ldap_pvt_thread_mutex_lock( &so->s_mutex );
+ if ( --so->s_inuse > 0 ) {
+ ldap_pvt_thread_mutex_unlock( &so->s_mutex );
+ return;
}
- so->s_restail = sr;
ldap_pvt_thread_mutex_unlock( &so->s_mutex );
- return LDAP_SUCCESS;
+ 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, int queue )
+syncprov_sendresp( Operation *op, opcookie *opc, syncops *so,
+ Entry **e, int mode )
{
slap_overinst *on = opc->son;
- syncprov_info_t *si = on->on_bi.bi_private;
SlapReply rs = { REP_SEARCH };
LDAPControl *ctrls[2];
- struct berval cookie;
+ struct berval cookie = BER_BVNULL, csns[2];
Entry e_uuid = {0};
Attribute a_uuid = {0};
- Operation sop = *so->s_op;
- Opheader ohdr;
- ohdr = *sop.o_hdr;
- sop.o_hdr = &ohdr;
- sop.o_tmpmemctx = op->o_tmpmemctx;
- sop.o_bd = op->o_bd;
- sop.o_controls = op->o_controls;
+ if ( so->s_op->o_abandon )
+ return SLAPD_ABANDON;
- if ( queue && (so->s_flags & PS_IS_REFRESHING) ) {
- ldap_pvt_thread_mutex_lock( &so->s_mutex );
- if ( so->s_flags & PS_IS_REFRESHING )
- return syncprov_qresp( opc, so, mode );
- ldap_pvt_thread_mutex_unlock( &so->s_mutex );
+ ctrls[1] = NULL;
+ if ( !BER_BVISNULL( &opc->sctxcsn )) {
+ csns[0] = opc->sctxcsn;
+ BER_BVZERO( &csns[1] );
+ slap_compose_sync_cookie( op, &cookie, csns, so->s_rid, slap_serverID ? slap_serverID : -1 );
}
- ctrls[1] = NULL;
- slap_compose_sync_cookie( op, &cookie, &opc->sctxcsn,
- so->s_sid, so->s_rid );
+#ifdef LDAP_DEBUG
+ if ( !BER_BVISNULL( &cookie )) {
+ if ( so->s_sid > 0 ) {
+ Debug( LDAP_DEBUG_SYNC, "syncprov_sendresp: to=%03x, cookie=%s\n",
+ so->s_sid, cookie.bv_val , 0 );
+ } else {
+ Debug( LDAP_DEBUG_SYNC, "syncprov_sendresp: cookie=%s\n",
+ cookie.bv_val, 0, 0 );
+ }
+ }
+#endif
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( &sop, &rs, &e_uuid,
+ rs.sr_err = syncprov_state_ctrl( op, &rs, &e_uuid,
mode, ctrls, 0, 1, &cookie );
+ if ( !BER_BVISNULL( &cookie )) {
+ op->o_tmpfree( cookie.bv_val, op->o_tmpmemctx );
+ }
- rs.sr_entry = e;
rs.sr_ctrls = ctrls;
+ op->o_bd->bd_info = (BackendInfo *)on->on_info;
switch( mode ) {
case LDAP_SYNC_ADD:
- if ( opc->sreference ) {
- rs.sr_ref = get_entry_referrals( &sop, e );
- send_search_reference( &sop, &rs );
+ rs.sr_entry = *e;
+ if ( rs.sr_entry->e_private )
+ rs.sr_flags = REP_ENTRY_MUSTRELEASE;
+ if ( opc->sreference && so->s_op->o_managedsait <= SLAP_CONTROL_IGNORED ) {
+ rs.sr_ref = get_entry_referrals( op, rs.sr_entry );
+ rs.sr_err = 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_attrs = sop.ors_attrs;
- send_search_entry( &sop, &rs );
+ rs.sr_entry = *e;
+ if ( rs.sr_entry->e_private )
+ rs.sr_flags = REP_ENTRY_MUSTRELEASE;
+ rs.sr_attrs = op->ors_attrs;
+ rs.sr_err = 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;
- bv.bv_val = NULL;
- bv.bv_len = 0;
+ if ( opc->sreference && so->s_op->o_managedsait <= SLAP_CONTROL_IGNORED ) {
+ struct berval bv = BER_BVNULL;
rs.sr_ref = &bv;
- send_search_reference( &sop, &rs );
+ rs.sr_err = send_search_reference( op, &rs );
} else {
- send_search_entry( &sop, &rs );
+ rs.sr_err = send_search_entry( op, &rs );
}
break;
default:
assert(0);
}
- free( rs.sr_ctrls[0] );
+ /* In case someone else freed it already? */
+ if ( rs.sr_ctrls ) {
+ int i;
+ for ( i=0; rs.sr_ctrls[i]; i++ ) {
+ if ( rs.sr_ctrls[i] == ctrls[0] ) {
+ op->o_tmpfree( ctrls[0]->ldctl_value.bv_val, op->o_tmpmemctx );
+ ctrls[0]->ldctl_value.bv_val = NULL;
+ break;
+ }
+ }
+ rs.sr_ctrls = NULL;
+ }
+
return rs.sr_err;
}
static void
+syncprov_qstart( syncops *so );
+
+/* Play back queued responses */
+static int
+syncprov_qplay( Operation *op, syncops *so )
+{
+ slap_overinst *on = LDAP_SLIST_FIRST(&so->s_op->o_extra)->oe_key;
+ syncres *sr;
+ Entry *e;
+ opcookie opc;
+ int rc = 0;
+
+ opc.son = on;
+
+ do {
+ 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;
+ /* Exit loop with mutex held */
+ if ( !sr || so->s_op->o_abandon )
+ break;
+ ldap_pvt_thread_mutex_unlock( &so->s_mutex );
+
+ if ( sr->s_mode == LDAP_SYNC_NEW_COOKIE ) {
+ SlapReply rs = { REP_INTERMEDIATE };
+
+ rc = syncprov_sendinfo( op, &rs, LDAP_TAG_SYNC_NEW_COOKIE,
+ &sr->s_csn, 0, NULL, 0 );
+ } else {
+ 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 = overlay_entry_get_ov( op, &opc.sndn, NULL, NULL, 0, &e, on );
+ if ( rc ) {
+ Debug( LDAP_DEBUG_SYNC, "syncprov_qplay: failed to get %s, "
+ "error (%d), ignoring...\n", opc.sndn.bv_val, rc, 0 );
+ ch_free( sr );
+ rc = 0;
+ continue;
+ }
+ }
+ rc = syncprov_sendresp( op, &opc, so, &e, sr->s_mode );
+
+ if ( e ) {
+ overlay_entry_release_ov( op, e, 0, on );
+ }
+ }
+
+ ch_free( sr );
+
+ /* Exit loop with mutex held */
+ ldap_pvt_thread_mutex_lock( &so->s_mutex );
+
+ } while (0);
+
+ /* We now only send one change at a time, to prevent one
+ * psearch from hogging all the CPU. Resubmit this task if
+ * there are more responses queued and no errors occurred.
+ */
+
+ if ( rc == 0 && so->s_res ) {
+ syncprov_qstart( so );
+ } else {
+ so->s_flags ^= PS_TASK_QUEUED;
+ }
+
+ ldap_pvt_thread_mutex_unlock( &so->s_mutex );
+ return rc;
+}
+
+/* task for playing back queued responses */
+static void *
+syncprov_qtask( void *ctx, void *arg )
+{
+ syncops *so = arg;
+ OperationBuffer opbuf;
+ Operation *op;
+ BackendDB be;
+ int rc;
+
+ op = &opbuf.ob_op;
+ *op = *so->s_op;
+ op->o_hdr = &opbuf.ob_hdr;
+ op->o_controls = opbuf.ob_controls;
+ memset( op->o_controls, 0, sizeof(opbuf.ob_controls) );
+
+ *op->o_hdr = *so->s_op->o_hdr;
+
+ op->o_tmpmemctx = slap_sl_mem_create(SLAP_SLAB_SIZE, SLAP_SLAB_STACK, ctx, 1);
+ 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;
+ LDAP_SLIST_FIRST(&op->o_extra) = NULL;
+ op->o_callback = NULL;
+
+ rc = syncprov_qplay( op, so );
+
+ /* decrement use count... */
+ syncprov_free_syncop( so );
+
+ return NULL;
+}
+
+/* Start the task to play back queued psearch responses */
+static void
+syncprov_qstart( syncops *so )
+{
+ so->s_flags |= PS_TASK_QUEUED;
+ so->s_inuse++;
+ ldap_pvt_thread_pool_submit( &connection_pool,
+ syncprov_qtask, so );
+}
+
+/* Queue a persistent search response */
+static int
+syncprov_qresp( opcookie *opc, syncops *so, int mode )
+{
+ syncres *sr;
+ int srsize;
+ struct berval cookie = opc->sctxcsn;
+
+ if ( mode == LDAP_SYNC_NEW_COOKIE ) {
+ syncprov_info_t *si = opc->son->on_bi.bi_private;
+
+ slap_compose_sync_cookie( NULL, &cookie, si->si_ctxcsn,
+ so->s_rid, slap_serverID ? slap_serverID : -1);
+ }
+
+ srsize = sizeof(syncres) + opc->suuid.bv_len + 1 +
+ opc->sdn.bv_len + 1 + opc->sndn.bv_len + 1;
+ if ( cookie.bv_len )
+ srsize += cookie.bv_len + 1;
+ sr = ch_malloc( srsize );
+ 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 );
+ if ( cookie.bv_len ) {
+ sr->s_csn.bv_val = sr->s_uuid.bv_val + sr->s_uuid.bv_len + 1;
+ strcpy( sr->s_csn.bv_val, cookie.bv_val );
+ } else {
+ sr->s_csn.bv_val = NULL;
+ }
+ sr->s_csn.bv_len = cookie.bv_len;
+
+ if ( mode == LDAP_SYNC_NEW_COOKIE && cookie.bv_val ) {
+ ch_free( cookie.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|PS_TASK_QUEUED)) == PS_IS_DETACHED ) {
+ syncprov_qstart( so );
+ }
+ 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, Operation,
+ 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;
- Entry *e;
+ syncops *ss, *sprev, *snext;
+ Entry *e = NULL;
Attribute *a;
int rc;
struct berval newdn;
+ int freefdn = 0;
+ BackendDB *b0 = op->o_bd, db;
fc.fdn = &op->o_req_ndn;
/* compute new DN */
@@ -767,43 +1149,102 @@ syncprov_matchops( Operation *op, opcook
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 );
- op->o_bd->bd_info = (BackendInfo *)on;
- if ( rc ) return;
+ if ( !SLAP_ISOVERLAY( op->o_bd )) {
+ db = *op->o_bd;
+ op->o_bd = &db;
+ }
+ rc = overlay_entry_get_ov( op, fc.fdn, NULL, NULL, 0, &e, on );
+ /* If we're sending responses now, make a copy and unlock the DB */
+ if ( e && !saveit ) {
+ Entry *e2 = entry_dup( e );
+ overlay_entry_release_ov( op, e, 0, on );
+ e = e2;
+ }
+ if ( rc ) {
+ op->o_bd = b0;
+ return;
+ }
} else {
e = op->ora_e;
}
- if ( saveit ) {
+ 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 );
- }
- if ( saveit || op->o_tag == LDAP_REQ_ADD ) {
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; ss; ss=ss->s_next)
+ for (ss = si->si_ops, sprev = (syncops *)&si->si_ops; ss;
+ sprev = ss, ss=snext)
{
+ Operation op2;
+ Opheader oh;
syncmatches *sm;
int found = 0;
+ snext = ss->s_next;
+ if ( ss->s_op->o_abandon )
+ continue;
+
+ /* First time thru, check for possible skips */
+ if ( saveit || op->o_tag == LDAP_REQ_ADD ) {
+
+ /* Don't send ops back to the originator */
+ if ( opc->osid > 0 && opc->osid == ss->s_sid ) {
+ Debug( LDAP_DEBUG_SYNC, "syncprov_matchops: skipping original sid %03x\n",
+ opc->osid, 0, 0 );
+ continue;
+ }
+
+ /* Don't send ops back to the messenger */
+ if ( opc->rsid > 0 && opc->rsid == ss->s_sid ) {
+ Debug( LDAP_DEBUG_SYNC, "syncprov_matchops: skipping relayed sid %03x\n",
+ opc->rsid, 0, 0 );
+ continue;
+ }
+ }
+
/* 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 ) continue;
+ 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 ) {
@@ -815,54 +1256,62 @@ syncprov_matchops( Operation *op, opcook
}
}
+ if ( fc.fscope ) {
+ op2 = *ss->s_op;
+ oh = *op->o_hdr;
+ oh.oh_conn = ss->s_op->o_conn;
+ oh.oh_connid = ss->s_op->o_connid;
+ op2.o_bd = op->o_bd->bd_self;
+ op2.o_hdr = &oh;
+ op2.o_extra = op->o_extra;
+ op2.o_callback = NULL;
+ rc = test_filter( &op2, e, ss->s_op->ors_filter );
+ }
+
+ Debug( LDAP_DEBUG_TRACE, "syncprov_matchops: sid %03x fscope %d rc %d\n",
+ ss->s_sid, fc.fscope, rc );
+
/* 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 ( fc.fscope && rc == LDAP_COMPARE_TRUE ) {
if ( saveit ) {
sm = op->o_tmpalloc( sizeof(syncmatches), op->o_tmpmemctx );
sm->sm_next = opc->smatches;
sm->sm_op = ss;
- ss->s_inuse++;
+ 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_sendresp( op, opc, ss, e,
- found ? LDAP_SYNC_MODIFY : LDAP_SYNC_ADD, 1 );
+ syncprov_qresp( opc, ss,
+ found ? LDAP_SYNC_MODIFY : LDAP_SYNC_ADD );
}
} else if ( !saveit && found ) {
/* send DELETE */
- syncprov_sendresp( op, opc, ss, NULL, LDAP_SYNC_DELETE, 1 );
+ syncprov_qresp( opc, ss, LDAP_SYNC_DELETE );
+ } else if ( !saveit ) {
+ syncprov_qresp( opc, ss, LDAP_SYNC_NEW_COOKIE );
+ }
+ if ( !saveit && found ) {
+ /* Decrement s_inuse, was incremented when called
+ * with saveit == TRUE
+ */
+ syncprov_free_syncop( ss );
}
}
ldap_pvt_thread_mutex_unlock( &si->si_ops_mutex );
- if ( op->o_tag != LDAP_REQ_ADD ) {
- op->o_bd->bd_info = (BackendInfo *)on->on_info;
- be_entry_release_r( op, e );
- op->o_bd->bd_info = (BackendInfo *)on;
- }
-}
-static void
-syncprov_free_syncop( syncops *so )
-{
- syncres *sr, *srnext;
-
- ldap_pvt_thread_mutex_lock( &so->s_mutex );
- so->s_inuse--;
- if ( so->s_inuse > 0 ) {
- ldap_pvt_thread_mutex_unlock( &so->s_mutex );
- return;
+ if ( op->o_tag != LDAP_REQ_ADD && e ) {
+ if ( !SLAP_ISOVERLAY( op->o_bd )) {
+ op->o_bd = &db;
+ }
+ overlay_entry_release_ov( op, e, 0, on );
+ op->o_bd = b0;
}
- ldap_pvt_thread_mutex_unlock( &so->s_mutex );
- filter_free( so->s_op->ors_filter );
- 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 );
+ if ( freefdn ) {
+ op->o_tmpfree( fc.fdn->bv_val, op->o_tmpmemctx );
}
- ldap_pvt_thread_mutex_destroy( &so->s_mutex );
- ch_free( so );
+ op->o_bd = b0;
}
static int
@@ -870,15 +1319,340 @@ syncprov_op_cleanup( Operation *op, Slap
{
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 */
+ mt = opc->smt;
+ if ( mt ) {
+ ldap_pvt_thread_mutex_lock( &mt->mt_mutex );
+ mt->mt_mods = mt->mt_mods->mi_next;
+ /* If there are more, promote the next one */
+ if ( mt->mt_mods ) {
+ mt->mt_op = mt->mt_mods->mi_op;
+ ldap_pvt_thread_mutex_unlock( &mt->mt_mutex );
+ } else {
+ ldap_pvt_thread_mutex_unlock( &mt->mt_mutex );
+ ldap_pvt_thread_mutex_lock( &si->si_mods_mutex );
+ avl_delete( &si->si_mods, mt, sp_avl_cmp );
+ ldap_pvt_thread_mutex_unlock( &si->si_mods_mutex );
+ ldap_pvt_thread_mutex_destroy( &mt->mt_mutex );
+ ch_free( mt );
+ }
+ }
+ 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 = (syncprov_info_t *)on->on_bi.bi_private;
+ Modifications mod;
+ Operation opm;
+ SlapReply rsm = { 0 };
+ slap_callback cb = {0};
+ BackendDB be;
+
+#ifdef CHECK_CSN
+ Syntax *syn = slap_schema.si_ad_contextCSN->ad_type->sat_syntax;
+
+ int i;
+ for ( i=0; isi_numcsns; i++ ) {
+ assert( !syn->ssyn_validate( syn, si->si_ctxcsn+i ));
+ }
+#endif
+ mod.sml_numvals = si->si_numcsns;
+ mod.sml_values = si->si_ctxcsn;
+ mod.sml_nvalues = NULL;
+ mod.sml_desc = slap_schema.si_ad_contextCSN;
+ mod.sml_op = LDAP_MOD_REPLACE;
+ mod.sml_flags = SLAP_MOD_INTERNAL;
+ 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.orm_no_opattrs = 1;
+ if ( SLAP_GLUE_SUBORDINATE( op->o_bd )) {
+ be = *on->on_info->oi_origdb;
+ opm.o_bd = &be;
+ }
+ opm.o_req_dn = si->si_contextdn;
+ opm.o_req_ndn = si->si_contextdn;
+ opm.o_bd->bd_info = on->on_info->oi_orig;
+ opm.o_managedsait = SLAP_CONTROL_NONCRITICAL;
+ opm.o_no_schema_check = 1;
+ opm.o_bd->be_modify( &opm, &rsm );
+
+ if ( rsm.sr_err == LDAP_NO_SUCH_OBJECT &&
+ SLAP_SYNC_SUBENTRY( opm.o_bd )) {
+ const char *text;
+ char txtbuf[SLAP_TEXT_BUFLEN];
+ size_t textlen = sizeof txtbuf;
+ Entry *e = slap_create_context_csn_entry( opm.o_bd, NULL );
+ slap_mods2entry( &mod, &e, 0, 1, &text, txtbuf, textlen);
+ opm.ora_e = e;
+ opm.o_bd->be_add( &opm, &rsm );
+ if ( e == opm.ora_e )
+ be_entry_release_w( &opm, opm.ora_e );
+ }
+
+ if ( mod.sml_next != NULL ) {
+ slap_mods_free( mod.sml_next, 1 );
+ }
+#ifdef CHECK_CSN
+ for ( i=0; isi_numcsns; i++ ) {
+ assert( !syn->ssyn_validate( syn, si->si_ctxcsn+i ));
+ }
+#endif
+}
+
+static void
+syncprov_add_slog( Operation *op )
+{
+ 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 +
+ op->o_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, op->o_csn.bv_val, op->o_csn.bv_len );
+ se->se_csn.bv_val[op->o_csn.bv_len] = '\0';
+ se->se_csn.bv_len = op->o_csn.bv_len;
+ se->se_sid = slap_parse_csn_sid( &se->se_csn );
+
+ 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--;
+ }
+ 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,
+ sync_control *srs, BerVarray ctxcsn, int numcsns, int *sids )
+{
+ slap_overinst *on = (slap_overinst *)op->o_bd->bd_info;
+ slog_entry *se;
+ int i, j, ndel, num, nmods, mmods;
+ char cbuf[LDAP_PVT_CSNSTR_BUFSIZE];
+ BerVarray uuids;
+ struct berval delcsn[2];
+
+ 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);
+
+ delcsn[0].bv_len = 0;
+ delcsn[0].bv_val = cbuf;
+ BER_BVZERO(&delcsn[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.
+ */
+ Debug( LDAP_DEBUG_SYNC, "srs csn %s\n",
+ srs->sr_state.ctxcsn[0].bv_val, 0, 0 );
+ for ( se=sl->sl_head; se; se=se->se_next ) {
+ int k;
+ Debug( LDAP_DEBUG_SYNC, "log csn %s\n", se->se_csn.bv_val, 0, 0 );
+ ndel = 1;
+ for ( k=0; ksr_state.numcsns; k++ ) {
+ if ( se->se_sid == srs->sr_state.sids[k] ) {
+ ndel = ber_bvcmp( &se->se_csn, &srs->sr_state.ctxcsn[k] );
+ break;
+ }
+ }
+ if ( ndel <= 0 ) {
+ Debug( LDAP_DEBUG_SYNC, "cmp %d, too old\n", ndel, 0, 0 );
+ continue;
+ }
+ ndel = 0;
+ for ( k=0; kse_sid == sids[k] ) {
+ ndel = ber_bvcmp( &se->se_csn, &ctxcsn[k] );
+ break;
+ }
+ }
+ if ( ndel > 0 ) {
+ Debug( LDAP_DEBUG_SYNC, "cmp %d, too new\n", ndel, 0, 0 );
+ break;
+ }
+ if ( se->se_tag == LDAP_REQ_DELETE ) {
+ j = i;
+ i++;
+ AC_MEMCPY( cbuf, se->se_csn.bv_val, se->se_csn.bv_len );
+ delcsn[0].bv_len = se->se_csn.bv_len;
+ delcsn[0].bv_val[delcsn[0].bv_len] = '\0';
+ } 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; ibd_info = (BackendInfo *)on->on_info;
+
+ for ( i=ndel; ibe_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 ) {
+ struct berval cookie;
+
+ if ( delcsn[0].bv_len ) {
+ slap_compose_sync_cookie( op, &cookie, delcsn, srs->sr_state.rid,
+ slap_serverID ? slap_serverID : -1 );
+
+ Debug( LDAP_DEBUG_SYNC, "syncprov_playlog: cookie=%s\n", cookie.bv_val, 0, 0 );
+ }
+
+ uuids[ndel].bv_val = NULL;
+ syncprov_sendinfo( op, rs, LDAP_TAG_SYNC_ID_SET,
+ delcsn[0].bv_len ? &cookie : NULL, 0, uuids, 1 );
+ if ( delcsn[0].bv_len ) {
+ op->o_tmpfree( cookie.bv_val, op->o_tmpmemctx );
+ }
+ }
+ op->o_tmpfree( uuids, op->o_tmpmemctx );
}
static int
@@ -892,25 +1666,160 @@ syncprov_op_response( Operation *op, Sla
if ( rs->sr_err == LDAP_SUCCESS )
{
struct berval maxcsn;
- char cbuf[LDAP_LUTIL_CSNSTR_BUFSIZE];
+ char cbuf[LDAP_PVT_CSNSTR_BUFSIZE];
+ int do_check = 0, have_psearches, foundit, csn_changed = 0;
+ ldap_pvt_thread_mutex_lock( &si->si_resp_mutex );
+
+ /* Update our context CSN */
cbuf[0] = '\0';
- ldap_pvt_thread_mutex_lock( &si->si_csn_mutex );
- slap_get_commit_csn( op, &maxcsn );
- if ( maxcsn.bv_val ) {
- 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;
+ maxcsn.bv_val = cbuf;
+ maxcsn.bv_len = sizeof(cbuf);
+ ldap_pvt_thread_rdwr_wlock( &si->si_csn_rwlock );
+
+ if ( op->o_dont_replicate && op->o_tag == LDAP_REQ_MODIFY &&
+ op->orm_modlist->sml_op == LDAP_MOD_REPLACE &&
+ op->orm_modlist->sml_desc == slap_schema.si_ad_contextCSN ) {
+ /* Catch contextCSN updates from syncrepl. We have to look at
+ * all the attribute values, as there may be more than one csn
+ * that changed, and only one can be passed in the csn queue.
+ */
+ Modifications *mod = op->orm_modlist;
+ int i, j, sid;
+
+ for ( i=0; isml_numvals; i++ ) {
+ sid = slap_parse_csn_sid( &mod->sml_values[i] );
+
+ for ( j=0; jsi_numcsns; j++ ) {
+ if ( sid == si->si_sids[j] ) {
+ if ( ber_bvcmp( &mod->sml_values[i], &si->si_ctxcsn[j] ) > 0 ) {
+ ber_bvreplace( &si->si_ctxcsn[j], &mod->sml_values[i] );
+ csn_changed = 1;
+ }
+ break;
+ }
+ }
+
+ if ( j == si->si_numcsns ) {
+ value_add_one( &si->si_ctxcsn, &mod->sml_values[i] );
+ si->si_numcsns++;
+ si->si_sids = ch_realloc( si->si_sids, si->si_numcsns *
+ sizeof(int));
+ si->si_sids[j] = sid;
+ csn_changed = 1;
+ }
+ }
+ ldap_pvt_thread_rdwr_wunlock( &si->si_csn_rwlock );
+
+ if ( csn_changed ) {
+ ldap_pvt_thread_mutex_lock( &si->si_ops_mutex );
+ have_psearches = ( si->si_ops != NULL );
+ ldap_pvt_thread_mutex_unlock( &si->si_ops_mutex );
+
+ if ( have_psearches ) {
+ 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_NEW_COOKIE );
+ }
+ }
+ }
+ goto leave;
+ }
+
+ slap_get_commit_csn( op, &maxcsn, &foundit );
+ if ( BER_BVISEMPTY( &maxcsn ) && SLAP_GLUE_SUBORDINATE( op->o_bd )) {
+ /* syncrepl queues the CSN values in the db where
+ * it is configured , not where the changes are made.
+ * So look for a value in the glue db if we didn't
+ * find any in this db.
+ */
+ BackendDB *be = op->o_bd;
+ op->o_bd = select_backend( &be->be_nsuffix[0], 1);
+ maxcsn.bv_val = cbuf;
+ maxcsn.bv_len = sizeof(cbuf);
+ slap_get_commit_csn( op, &maxcsn, &foundit );
+ op->o_bd = be;
+ }
+ if ( !BER_BVISEMPTY( &maxcsn ) ) {
+ int i, sid;
+#ifdef CHECK_CSN
+ Syntax *syn = slap_schema.si_ad_contextCSN->ad_type->sat_syntax;
+ assert( !syn->ssyn_validate( syn, &maxcsn ));
+#endif
+ sid = slap_parse_csn_sid( &maxcsn );
+ for ( i=0; isi_numcsns; i++ ) {
+ if ( sid == si->si_sids[i] ) {
+ if ( ber_bvcmp( &maxcsn, &si->si_ctxcsn[i] ) > 0 ) {
+ ber_bvreplace( &si->si_ctxcsn[i], &maxcsn );
+ csn_changed = 1;
+ }
+ break;
+ }
+ }
+ /* It's a new SID for us */
+ if ( i == si->si_numcsns ) {
+ value_add_one( &si->si_ctxcsn, &maxcsn );
+ csn_changed = 1;
+ si->si_numcsns++;
+ si->si_sids = ch_realloc( si->si_sids, si->si_numcsns *
+ sizeof(int));
+ si->si_sids[i] = sid;
+ }
+#if 0
+ } else if ( !foundit ) {
+ /* internal ops that aren't meant to be replicated */
+ ldap_pvt_thread_rdwr_wunlock( &si->si_csn_rwlock );
+ return SLAP_CB_CONTINUE;
+#endif
+ }
+
+ /* Don't do any processing for consumer contextCSN updates */
+ if ( op->o_dont_replicate ) {
+ ldap_pvt_thread_rdwr_wunlock( &si->si_csn_rwlock );
+ goto leave;
+ }
+
+ si->si_numops++;
+ if ( si->si_chkops || si->si_chktime ) {
+ /* Never checkpoint adding the context entry,
+ * it will deadlock
+ */
+ if ( op->o_tag != LDAP_REQ_ADD ||
+ !dn_match( &op->o_req_ndn, &si->si_contextdn )) {
+ 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 )) {
+ if ( si->si_chklast ) {
+ do_check = 1;
+ si->si_chklast = op->o_time;
+ } else {
+ si->si_chklast = 1;
+ }
+ }
}
- si->si_gotcsn = 1;
}
- ldap_pvt_thread_mutex_unlock( &si->si_csn_mutex );
+ ldap_pvt_thread_rdwr_wunlock( &si->si_csn_rwlock );
- opc->sctxcsn.bv_len = maxcsn.bv_len;
- opc->sctxcsn.bv_val = cbuf;
+ if ( do_check ) {
+ ldap_pvt_thread_rdwr_rlock( &si->si_csn_rwlock );
+ syncprov_checkpoint( op, rs, on );
+ ldap_pvt_thread_rdwr_runlock( &si->si_csn_rwlock );
+ }
+
+ /* only update consumer ctx if this is a newer csn */
+ if ( csn_changed ) {
+ opc->sctxcsn = maxcsn;
+ }
- if ( si->si_ops ) {
+ /* Handle any persistent searches */
+ ldap_pvt_thread_mutex_lock( &si->si_ops_mutex );
+ have_psearches = ( si->si_ops != NULL );
+ ldap_pvt_thread_mutex_unlock( &si->si_ops_mutex );
+ if ( have_psearches ) {
switch(op->o_tag) {
case LDAP_REQ_ADD:
case LDAP_REQ_MODIFY:
@@ -922,56 +1831,28 @@ syncprov_op_response( Operation *op, Sla
/* for each match in opc->smatches:
* send DELETE msg
*/
- ldap_pvt_thread_mutex_lock( &si->si_ops_mutex );
for ( sm = opc->smatches; sm; sm=sm->sm_next ) {
if ( sm->sm_op->s_op->o_abandon )
continue;
- syncprov_sendresp( op, opc, sm->sm_op, NULL,
- LDAP_SYNC_DELETE, 1 );
+ syncprov_qresp( opc, sm->sm_op, LDAP_SYNC_DELETE );
}
- ldap_pvt_thread_mutex_unlock( &si->si_ops_mutex );
break;
}
}
- }
- return SLAP_CB_CONTINUE;
-}
-
-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;
+ /* Add any log records */
+ if ( si->si_logs && op->o_tag != LDAP_REQ_ADD ) {
+ syncprov_add_slog( op );
}
- }
- ldap_pvt_thread_mutex_unlock( &si->si_ops_mutex );
- if ( so ) {
- 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_pvt_thread_mutex_unlock( &op->o_conn->c_mutex );
- /* Is this really a Cancel exop? */
- if ( op->o_tag != LDAP_REQ_ABANDON ) {
- rs->sr_err = LDAP_CANCELLED;
- send_ldap_result( so->s_op, rs );
- }
- syncprov_free_syncop( so );
+leave: ldap_pvt_thread_mutex_unlock( &si->si_resp_mutex );
}
return SLAP_CB_CONTINUE;
}
-#if 0
+/* 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 )
{
@@ -979,47 +1860,52 @@ syncprov_op_compare( Operation *op, Slap
syncprov_info_t *si = on->on_bi.bi_private;
int rc = SLAP_CB_CONTINUE;
- if ( dn_match( &op->o_req_ndn, &si->si_e->e_nname ) )
+ if ( dn_match( &op->o_req_ndn, &si->si_contextdn ) &&
+ op->oq_compare.rs_ava->aa_desc == slap_schema.si_ad_contextCSN )
{
- Attribute *a;
+ Entry e = {0};
+ Attribute a = {0};
- ldap_pvt_thread_mutex_lock( &si->si_e_mutex );
+ e.e_name = si->si_contextdn;
+ e.e_nname = si->si_contextdn;
+ e.e_attrs = &a;
- if ( get_assert( op ) &&
- ( test_filter( op, si->si_e, get_assertion( op ) ) != LDAP_COMPARE_TRUE ) )
- {
- rs->sr_err = LDAP_ASSERTION_FAILED;
- goto return_results;
- }
+ a.a_desc = slap_schema.si_ad_contextCSN;
+
+ ldap_pvt_thread_rdwr_rlock( &si->si_csn_rwlock );
+
+ a.a_vals = si->si_ctxcsn;
+ a.a_nvals = a.a_vals;
+ a.a_numvals = si->si_numcsns;
- rs->sr_err = access_allowed( op, si->si_e, op->oq_compare.rs_ava->aa_desc,
+ 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;
}
- rs->sr_err = LDAP_NO_SUCH_ATTRIBUTE;
-
- for ( a = attr_find( si->si_e->e_attrs, op->oq_compare.rs_ava->aa_desc );
- a != NULL;
- a = attr_find( a->a_next, op->oq_compare.rs_ava->aa_desc ) )
+ if ( get_assert( op ) &&
+ ( test_filter( op, &e, get_assertion( op ) ) != LDAP_COMPARE_TRUE ) )
{
- rs->sr_err = LDAP_COMPARE_FALSE;
+ rs->sr_err = LDAP_ASSERTION_FAILED;
+ goto return_results;
+ }
- 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;
- break;
- }
+
+ rs->sr_err = LDAP_COMPARE_FALSE;
+
+ if ( attr_valfind( &a,
+ SLAP_MR_ATTRIBUTE_VALUE_NORMALIZED_MATCH |
+ SLAP_MR_ASSERTED_VALUE_NORMALIZED_MATCH,
+ &op->oq_compare.rs_ava->aa_value, NULL, op->o_tmpmemctx ) == 0 )
+ {
+ rs->sr_err = LDAP_COMPARE_TRUE;
}
return_results:;
- ldap_pvt_thread_mutex_unlock( &si->si_e_mutex );
+ ldap_pvt_thread_rdwr_runlock( &si->si_csn_rwlock );
send_ldap_result( op, rs );
@@ -1029,18 +1915,27 @@ return_results:;
rc = rs->sr_err;
}
- return SLAP_CB_CONTINUE;
+ return rc;
}
-#endif
-
+
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;
+ opcookie *opc;
+ int have_psearches, cbsize;
+
+ ldap_pvt_thread_mutex_lock( &si->si_ops_mutex );
+ have_psearches = ( si->si_ops != NULL );
+ ldap_pvt_thread_mutex_unlock( &si->si_ops_mutex );
+
+ cbsize = sizeof(slap_callback) + sizeof(opcookie) +
+ (have_psearches ? sizeof(modinst) : 0 );
- slap_callback *cb = op->o_tmpcalloc(1, sizeof(slap_callback)+sizeof(opcookie), op->o_tmpmemctx);
- opcookie *opc = (opcookie *)(cb+1);
+ cb = op->o_tmpcalloc(1, cbsize, op->o_tmpmemctx);
+ opc = (opcookie *)(cb+1);
opc->son = on;
cb->sc_response = syncprov_op_response;
cb->sc_cleanup = syncprov_op_cleanup;
@@ -1048,7 +1943,88 @@ syncprov_op_mod( Operation *op, SlapRepl
cb->sc_next = op->o_callback;
op->o_callback = cb;
- if ( si->si_ops && op->o_tag != LDAP_REQ_ADD )
+ opc->osid = -1;
+ opc->rsid = -1;
+ if ( op->o_csn.bv_val ) {
+ opc->osid = slap_parse_csn_sid( &op->o_csn );
+ }
+ if ( op->o_controls ) {
+ struct sync_cookie *scook =
+ op->o_controls[slap_cids.sc_LDAPsync];
+ if ( scook )
+ opc->rsid = scook->sid;
+ }
+
+ /* If there are active persistent searches, lock this operation.
+ * See seqmod.c for the locking logic on its own.
+ */
+ if ( have_psearches ) {
+ 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 );
+ if ( mt->mt_mods == NULL ) {
+ /* Cannot reuse this mt, as another thread is about
+ * to release it in syncprov_op_cleanup.
+ */
+ ldap_pvt_thread_mutex_unlock( &mt->mt_mutex );
+ mt = NULL;
+ }
+ }
+ if ( mt ) {
+ 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 );
+ /* FIXME: if dynamic config can delete overlays or
+ * databases we'll have to check for cleanup here.
+ * Currently it's not an issue because there are
+ * no dynamic config deletes...
+ */
+ if ( slapd_shutdown )
+ return SLAPD_ABANDON;
+
+ if ( !ldap_pvt_thread_pool_pausecheck( &connection_pool ))
+ 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 );
+ }
+ opc->smt = mt;
+ }
+
+ if (( have_psearches || si->si_logs ) && op->o_tag != LDAP_REQ_ADD )
syncprov_matchops( op, opc, 1 );
return SLAP_CB_CONTINUE;
@@ -1066,75 +2042,125 @@ syncprov_op_extended( Operation *op, Sla
typedef struct searchstate {
slap_overinst *ss_on;
syncops *ss_so;
+ BerVarray ss_ctxcsn;
+ int *ss_sids;
+ int ss_numcsns;
+#define SS_PRESENT 0x01
+#define SS_CHANGED 0x02
+ int ss_flags;
} searchstate;
static int
syncprov_search_cleanup( Operation *op, SlapReply *rs )
{
- searchstate *ss = op->o_callback->sc_private;
if ( rs->sr_ctrls ) {
- free( rs->sr_ctrls[0] );
+ 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;
}
+typedef struct SyncOperationBuffer {
+ Operation sob_op;
+ Opheader sob_hdr;
+ OpExtra sob_oe;
+ AttributeName sob_extra; /* not always present */
+ /* Further data allocated here */
+} SyncOperationBuffer;
+
static void
-syncprov_detach_op( Operation *op, syncops *so )
+syncprov_detach_op( Operation *op, syncops *so, slap_overinst *on )
{
+ SyncOperationBuffer *sopbuf2;
Operation *op2;
int i, alen = 0;
size_t size;
char *ptr;
+ GroupAssertion *g1, *g2;
/* count the search attrs */
- for (i=0; op->ors_attrs && op->ors_attrs[i].an_name.bv_val; i++) {
+ 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) +
+ size = offsetof( SyncOperationBuffer, sob_extra ) +
(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_malloc( size );
- *op2 = *op;
- op2->o_hdr = (Opheader *)(op2+1);
+ sopbuf2 = ch_calloc( 1, size );
+ op2 = &sopbuf2->sob_op;
+ op2->o_hdr = &sopbuf2->sob_hdr;
+ LDAP_SLIST_FIRST(&op2->o_extra) = &sopbuf2->sob_oe;
+
+ /* 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_managedsait = op->o_managedsait;
+ LDAP_SLIST_FIRST(&op2->o_extra)->oe_key = on;
+ LDAP_SLIST_NEXT(LDAP_SLIST_FIRST(&op2->o_extra), oe_next) = NULL;
+
+ ptr = (char *) sopbuf2 + offsetof( SyncOperationBuffer, sob_extra );
if ( i ) {
- op2->ors_attrs = (AttributeName *)(op2->o_hdr + 1);
- ptr = (char *)(op2->ors_attrs+i+1);
- for (i=0; op->ors_attrs[i].an_name.bv_val; i++) {
+ op2->ors_attrs = (AttributeName *) ptr;
+ 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;
}
- op2->ors_attrs[i].an_name.bv_val = NULL;
- op2->ors_attrs[i].an_name.bv_len = 0;
- } else {
- ptr = (char *)(op2->o_hdr + 1);
+ BER_BVZERO( &op2->ors_attrs[i].an_name );
}
+
+ 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 );
- op2->o_controls = NULL;
- op2->o_callback = NULL;
+
+ /* Skip the AND/GE clause that we stuck on in front */
+ if ( so->s_flags & PS_FIX_FILTER ) {
+ op2->ors_filter = op->ors_filter->f_and->f_next;
+ so->s_flags ^= PS_FIX_FILTER;
+ } else {
+ op2->ors_filter = op->ors_filter;
+ }
+ op2->ors_filter = filter_dup( op2->ors_filter, NULL );
so->s_op = op2;
- /* Increment number of ops so that idletimeout ignores us */
- ldap_pvt_thread_mutex_lock( &op->o_conn->c_mutex );
+ /* 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 */
op->o_conn->c_n_ops_executing++;
op->o_conn->c_n_ops_completed--;
- ldap_pvt_thread_mutex_unlock( &op->o_conn->c_mutex );
+ LDAP_STAILQ_INSERT_TAIL( &op->o_conn->c_ops, op2, o_next );
+ so->s_flags |= PS_IS_DETACHED;
+
+ /* Prevent anyone else from trying to send a result for this op */
+ op->o_abandon = 1;
}
static int
@@ -1142,90 +2168,136 @@ syncprov_search_response( Operation *op,
{
searchstate *ss = op->o_callback->sc_private;
slap_overinst *on = ss->ss_on;
- syncprov_info_t *si = on->on_bi.bi_private;
- sync_control *srs = op->o_controls[sync_cid];
+ syncprov_info_t *si = (syncprov_info_t *)on->on_bi.bi_private;
+ sync_control *srs = op->o_controls[slap_cids.sc_LDAPsync];
if ( rs->sr_type == REP_SEARCH || rs->sr_type == REP_SEARCHREF ) {
- int i;
- if ( srs->sr_state.ctxcsn ) {
- Attribute *a = attr_find( rs->sr_entry->e_attrs,
- slap_schema.si_ad_entryCSN );
- /* Don't send the ctx entry twice */
- if ( bvmatch( &a->a_nvals[0], srs->sr_state.ctxcsn ))
+ 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 ) {
+ int i, sid;
+ sid = slap_parse_csn_sid( &a->a_nvals[0] );
+
+ /* Don't send changed entries back to the originator */
+ if ( sid == srs->sr_state.sid && srs->sr_state.numcsns ) {
+ Debug( LDAP_DEBUG_SYNC,
+ "Entry %s changed by peer, ignored\n",
+ rs->sr_entry->e_name.bv_val, 0, 0 );
return LDAP_SUCCESS;
+ }
+
+ /* If not a persistent search */
+ if ( !ss->ss_so ) {
+ /* Make sure entry is less than the snapshot'd contextCSN */
+ for ( i=0; iss_numcsns; i++ ) {
+ if ( sid == ss->ss_sids[i] && ber_bvcmp( &a->a_nvals[0],
+ &ss->ss_ctxcsn[i] ) > 0 ) {
+ Debug( LDAP_DEBUG_SYNC,
+ "Entry %s CSN %s greater than snapshot %s\n",
+ rs->sr_entry->e_name.bv_val,
+ a->a_nvals[0].bv_val,
+ ss->ss_ctxcsn[i].bv_val );
+ return LDAP_SUCCESS;
+ }
+ }
+ }
+
+ /* Don't send old entries twice */
+ if ( srs->sr_state.ctxcsn ) {
+ for ( i=0; isr_state.numcsns; i++ ) {
+ if ( sid == srs->sr_state.sids[i] &&
+ ber_bvcmp( &a->a_nvals[0],
+ &srs->sr_state.ctxcsn[i] )<= 0 ) {
+ Debug( LDAP_DEBUG_SYNC,
+ "Entry %s CSN %s older or equal to ctx %s\n",
+ rs->sr_entry->e_name.bv_val,
+ a->a_nvals[0].bv_val,
+ srs->sr_state.ctxcsn[i].bv_val );
+ 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 );
+ /* If we're in delta-sync mode, always send a cookie */
+ if ( si->si_nopres && si->si_usehint && a ) {
+ struct berval cookie;
+ slap_compose_sync_cookie( op, &cookie, a->a_nvals, srs->sr_state.rid, slap_serverID ? slap_serverID : -1 );
+ rs->sr_err = syncprov_state_ctrl( op, rs, rs->sr_entry,
+ LDAP_SYNC_ADD, rs->sr_ctrls, 0, 1, &cookie );
+ } else {
+ 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;
+ struct berval cookie = BER_BVNULL;
- slap_compose_sync_cookie( op, &cookie,
- &op->ors_filter->f_and->f_ava->aa_value,
- srs->sr_state.sid, srs->sr_state.rid );
+ if ( ( ss->ss_flags & SS_CHANGED ) &&
+ ss->ss_ctxcsn && !BER_BVISNULL( &ss->ss_ctxcsn[0] )) {
+ slap_compose_sync_cookie( op, &cookie, ss->ss_ctxcsn,
+ srs->sr_state.rid, slap_serverID ? slap_serverID : -1 );
- /* Is this a regular refresh? */
+ Debug( LDAP_DEBUG_SYNC, "syncprov_search_response: cookie=%s\n", cookie.bv_val, 0, 0 );
+ }
+
+ /* Is this a regular refresh?
+ * Note: refresh never gets here if there were no changes
+ */
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, LDAP_SYNC_REFRESH_PRESENTS );
+ 0, 1, &cookie, ( ss->ss_flags & SS_PRESENT ) ? LDAP_SYNC_REFRESH_PRESENTS :
+ LDAP_SYNC_REFRESH_DELETES );
+ op->o_tmpfree( cookie.bv_val, op->o_tmpmemctx );
} else {
- int locked = 0;
/* It's RefreshAndPersist, transition to Persist phase */
- rs->sr_rspoid = LDAP_SYNC_INFO;
- syncprov_sendinfo( op, rs, rs->sr_nentries ?
+ syncprov_sendinfo( op, rs, ( ss->ss_flags & SS_PRESENT ) ?
LDAP_TAG_SYNC_REFRESH_PRESENT : LDAP_TAG_SYNC_REFRESH_DELETE,
- &cookie, 1, NULL, 0 );
- /* Flush any queued persist messages */
- if ( ss->ss_so->s_res ) {
- syncres *sr, *srnext;
- Entry *e;
- opcookie opc;
+ ( ss->ss_flags & SS_CHANGED ) ? &cookie : NULL,
+ 1, NULL, 0 );
+ if ( !BER_BVISNULL( &cookie ))
+ op->o_tmpfree( cookie.bv_val, op->o_tmpmemctx );
- opc.son = on;
+ /* Detach this Op from frontend control */
+ ldap_pvt_thread_mutex_lock( &op->o_conn->c_mutex );
+
+ /* But not if this connection was closed along the way */
+ if ( op->o_abandon ) {
+ ldap_pvt_thread_mutex_unlock( &op->o_conn->c_mutex );
+ /* syncprov_ab_cleanup will free this syncop */
+ return SLAPD_ABANDON;
+
+ } else {
ldap_pvt_thread_mutex_lock( &ss->ss_so->s_mutex );
- locked = 1;
- for (sr = ss->ss_so->s_res; sr; sr=srnext) {
- int rc = LDAP_SUCCESS;
- srnext = sr->s_next;
- 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 ) {
- op->o_bd->bd_info = (BackendInfo *)on->on_info;
- rc = be_entry_get_rw( op, &opc.sndn, NULL, NULL, 0, &e );
- op->o_bd->bd_info = (BackendInfo *)on;
- }
- if ( rc == LDAP_SUCCESS )
- syncprov_sendresp( op, &opc, ss->ss_so, e,
- sr->s_mode, 0 );
-
- if ( e ) {
- op->o_bd->bd_info = (BackendInfo *)on->on_info;
- be_entry_release_r( op, e );
- op->o_bd->bd_info = (BackendInfo *)on;
- }
- ch_free( sr );
- }
- ss->ss_so->s_res = NULL;
- ss->ss_so->s_restail = NULL;
- }
+ /* Turn off the refreshing flag */
+ ss->ss_so->s_flags ^= PS_IS_REFRESHING;
- /* Turn off the refreshing flag */
- ss->ss_so->s_flags ^= PS_IS_REFRESHING;
- if ( locked )
- ldap_pvt_thread_mutex_unlock( &ss->ss_so->s_mutex );
+ syncprov_detach_op( op, ss->ss_so, on );
- /* Detach this Op from frontend control */
- syncprov_detach_op( op, ss->ss_so );
+ ldap_pvt_thread_mutex_unlock( &op->o_conn->c_mutex );
+
+ /* If there are queued responses, fire them off */
+ if ( ss->ss_so->s_res )
+ syncprov_qstart( ss->ss_so );
+ ldap_pvt_thread_mutex_unlock( &ss->ss_so->s_mutex );
+ }
return LDAP_SUCCESS;
}
@@ -1240,11 +2312,13 @@ syncprov_op_search( Operation *op, SlapR
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;
- Filter *fand, *fava;
+ int gotstate = 0, changed = 0, do_present = 0;
syncops *sop = NULL;
searchstate *ss;
sync_control *srs;
+ BerVarray ctxcsn;
+ int i, *sids, numcsns;
+ struct berval mincsn;
if ( !(op->o_sync_mode & SLAP_SYNC_REFRESH) ) return SLAP_CB_CONTINUE;
@@ -1253,7 +2327,7 @@ syncprov_op_search( Operation *op, SlapR
return rs->sr_err;
}
- srs = op->o_controls[sync_cid];
+ srs = op->o_controls[slap_cids.sc_LDAPsync];
/* If this is a persistent search, set it up right away */
if ( op->o_sync_mode & SLAP_SYNC_PERSIST ) {
@@ -1266,14 +2340,16 @@ syncprov_op_search( Operation *op, SlapR
fc.fbase = 0;
so.s_eid = NOID;
so.s_op = op;
- so.s_flags = PS_IS_REFRESHING;
+ 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;
+ ldap_pvt_thread_mutex_init( &so.s_mutex );
cb = op->o_callback;
op->o_callback = ≻
rs->sr_err = syncprov_findbase( op, &fc );
op->o_callback = cb;
+ ldap_pvt_thread_mutex_destroy( &so.s_mutex );
if ( rs->sr_err != LDAP_SUCCESS ) {
send_ldap_result( op, rs );
@@ -1282,38 +2358,108 @@ syncprov_op_search( Operation *op, SlapR
sop = ch_malloc( sizeof( syncops ));
*sop = so;
ldap_pvt_thread_mutex_init( &sop->s_mutex );
- ldap_pvt_thread_mutex_lock( &si->si_ops_mutex );
- sop->s_sid = srs->sr_state.sid;
sop->s_rid = srs->sr_state.rid;
- sop->s_next = si->si_ops;
+ sop->s_sid = srs->sr_state.sid;
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 );
}
- /* If we have a cookie, handle the PRESENT lookups
- */
+ /* snapshot the ctxcsn */
+ ldap_pvt_thread_rdwr_rlock( &si->si_csn_rwlock );
+ numcsns = si->si_numcsns;
+ if ( numcsns ) {
+ ber_bvarray_dup_x( &ctxcsn, si->si_ctxcsn, op->o_tmpmemctx );
+ sids = op->o_tmpalloc( numcsns * sizeof(int), op->o_tmpmemctx );
+ for ( i=0; isi_sids[i];
+ } else {
+ ctxcsn = NULL;
+ sids = NULL;
+ }
+ ldap_pvt_thread_rdwr_runlock( &si->si_csn_rwlock );
+
+ /* If we have a cookie, handle the PRESENT lookups */
if ( srs->sr_state.ctxcsn ) {
- /* Is the CSN in a valid format? */
- if ( srs->sr_state.ctxcsn->bv_len >= LDAP_LUTIL_CSNSTR_BUFSIZE ) {
- send_ldap_error( op, rs, LDAP_OTHER, "invalid sync cookie" );
- return rs->sr_err;
+ sessionlog *sl;
+ int i, j;
+
+ /* If we don't have any CSN of our own yet, pretend nothing
+ * has changed.
+ */
+ if ( !numcsns )
+ goto no_change;
+
+ if ( !si->si_nopres )
+ do_present = SS_PRESENT;
+
+ /* If there are SIDs we don't recognize in the cookie, drop them */
+ for (i=0; isr_state.numcsns; ) {
+ for (j=0; jsr_state.sids[i] == sids[j] ) {
+ break;
+ }
+ }
+ /* not found */
+ if ( j == numcsns ) {
+ struct berval tmp = srs->sr_state.ctxcsn[i];
+ j = srs->sr_state.numcsns - 1;
+ srs->sr_state.ctxcsn[i] = srs->sr_state.ctxcsn[j];
+ tmp.bv_len = 0;
+ srs->sr_state.ctxcsn[j] = tmp;
+ srs->sr_state.numcsns = j;
+ srs->sr_state.sids[i] = srs->sr_state.sids[j];
+ continue;
+ }
+ i++;
}
- /* Is the CSN still present in the database? */
- if ( syncprov_findcsn( op, FIND_CSN ) != LDAP_SUCCESS ) {
- /* No, so a reload is required */
-#if 0 /* the consumer doesn't seem to send this hint */
- if ( op->o_sync_rhint == 0 ) {
- send_ldap_error( op, rs, LDAP_SYNC_REFRESH_REQUIRED, "sync cookie is stale" );
- return rs->sr_err;
+
+ /* Find the smallest CSN */
+ mincsn = srs->sr_state.ctxcsn[0];
+ for ( i=1; isr_state.numcsns; i++ ) {
+ if ( ber_bvcmp( &mincsn, &srs->sr_state.ctxcsn[i] ) > 0 )
+ mincsn = srs->sr_state.ctxcsn[i];
+ }
+
+ /* If nothing has changed, shortcut it */
+ if ( srs->sr_state.numcsns == numcsns ) {
+ int i, j, newer;
+ for ( i=0; isr_state.numcsns; i++ ) {
+ for ( j=0; jsr_state.sids[i] != sids[j] )
+ continue;
+ newer = ber_bvcmp( &srs->sr_state.ctxcsn[i], &ctxcsn[j] );
+ /* If our state is newer, tell consumer about changes */
+ if ( newer < 0 )
+ changed = SS_CHANGED;
+ else if ( newer > 0 ) {
+ /* our state is older, tell consumer nothing */
+ if ( sop ) {
+ syncops **sp = &si->si_ops;
+
+ ldap_pvt_thread_mutex_lock( &si->si_ops_mutex );
+ while ( *sp != sop )
+ sp = &(*sp)->s_next;
+ *sp = sop->s_next;
+ ldap_pvt_thread_mutex_unlock( &si->si_ops_mutex );
+ ch_free( sop );
+ }
+ rs->sr_err = LDAP_SUCCESS;
+ rs->sr_ctrls = NULL;
+ send_ldap_result( op, rs );
+ return rs->sr_err;
+ }
+ break;
+ }
+ if ( changed )
+ break;
}
-#endif
- } else {
- gotstate = 1;
- /* If just Refreshing and nothing has changed, shortcut it */
- if ( bvmatch( srs->sr_state.ctxcsn, &si->si_ctxcsn )) {
- nochange = 1;
- if ( !(op->o_sync_mode & SLAP_SYNC_PERSIST) ) {
+ if ( !changed ) {
+ do_present = 0;
+no_change: if ( !(op->o_sync_mode & SLAP_SYNC_PERSIST) ) {
LDAPControl *ctrls[2];
ctrls[0] = NULL;
@@ -1323,30 +2469,70 @@ syncprov_op_search( Operation *op, SlapR
rs->sr_ctrls = ctrls;
rs->sr_err = LDAP_SUCCESS;
send_ldap_result( op, rs );
+ rs->sr_ctrls = NULL;
return rs->sr_err;
}
goto shortcut;
- } else
- /* If context has changed, check for Present UUIDs */
- if ( syncprov_findcsn( op, FIND_PRESENT ) != LDAP_SUCCESS ) {
+ }
+ } else {
+ /* consumer doesn't have the right number of CSNs */
+ changed = SS_CHANGED;
+ }
+ /* Do we have a sessionlog for this search? */
+ sl=si->si_logs;
+ if ( sl ) {
+ ldap_pvt_thread_mutex_lock( &sl->sl_mutex );
+ /* Are there any log entries, and is the consumer state
+ * present in the session log?
+ */
+ if ( sl->sl_num > 0 && ber_bvcmp( &mincsn, &sl->sl_mincsn ) >= 0 ) {
+ do_present = 0;
+ /* mutex is unlocked in playlog */
+ syncprov_playlog( op, rs, sl, srs, ctxcsn, numcsns, sids );
+ } 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 ) {
+ if ( ctxcsn )
+ ber_bvarray_free_x( ctxcsn, op->o_tmpmemctx );
+ if ( sids )
+ op->o_tmpfree( sids, op->o_tmpmemctx );
+ send_ldap_error( op, rs, LDAP_SYNC_REFRESH_REQUIRED, "sync cookie is stale" );
+ return rs->sr_err;
+ }
+ if ( srs->sr_state.ctxcsn ) {
+ ber_bvarray_free_x( srs->sr_state.ctxcsn, op->o_tmpmemctx );
+ srs->sr_state.ctxcsn = NULL;
+ }
+ if ( srs->sr_state.sids ) {
+ slap_sl_free( srs->sr_state.sids, op->o_tmpmemctx );
+ srs->sr_state.sids = NULL;
+ }
+ srs->sr_state.numcsns = 0;
+ } else {
+ gotstate = 1;
+ /* If changed and doing Present lookup, send Present UUIDs */
+ if ( do_present && syncprov_findcsn( op, FIND_PRESENT ) !=
+ LDAP_SUCCESS ) {
+ if ( ctxcsn )
+ ber_bvarray_free_x( ctxcsn, op->o_tmpmemctx );
+ if ( sids )
+ op->o_tmpfree( sids, op->o_tmpmemctx );
send_ldap_result( op, rs );
return rs->sr_err;
}
}
+ } else {
+ /* No consumer state, assume something has changed */
+ changed = SS_CHANGED;
}
- /* If we didn't get a cookie and we don't know our contextcsn, try to
- * find it anyway.
- */
- if ( !gotstate && !si->si_gotcsn ) {
- struct berval bv = BER_BVC("1"), *old;
-
- old = srs->sr_state.ctxcsn;
- srs->sr_state.ctxcsn = &bv;
- syncprov_findcsn( op, FIND_CSN );
- srs->sr_state.ctxcsn = old;
- }
-
+shortcut:
/* Append CSN range to search filter, save original filter
* for persistent search evaluation
*/
@@ -1354,46 +2540,49 @@ syncprov_op_search( Operation *op, SlapR
sop->s_filterstr= op->ors_filterstr;
}
- 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 );
- fava->f_choice = LDAP_FILTER_LE;
- fava->f_ava = op->o_tmpalloc( sizeof(AttributeAssertion), op->o_tmpmemctx );
- fava->f_ava->aa_desc = slap_schema.si_ad_entryCSN;
- ber_dupbv_x( &fava->f_ava->aa_value, &si->si_ctxcsn, op->o_tmpmemctx );
- fand->f_and = fava;
- if ( gotstate ) {
- fava->f_next = op->o_tmpalloc( sizeof(Filter), op->o_tmpmemctx );
- fava = fava->f_next;
+ /* If something changed, find the changes */
+ if ( gotstate && changed ) {
+ 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;
- ber_dupbv_x( &fava->f_ava->aa_value, srs->sr_state.ctxcsn, op->o_tmpmemctx );
+#ifdef LDAP_COMP_MATCH
+ fava->f_ava->aa_cf = NULL;
+#endif
+ ber_dupbv_x( &fava->f_ava->aa_value, &mincsn, op->o_tmpmemctx );
+ fava->f_next = op->ors_filter;
+ op->ors_filter = fand;
+ filter2bv_x( op, op->ors_filter, &op->ors_filterstr );
+ if ( sop )
+ sop->s_flags |= PS_FIX_FILTER;
}
- fava->f_next = op->ors_filter;
- op->ors_filter = fand;
- filter2bv_x( op, op->ors_filter, &op->ors_filterstr );
-shortcut:
/* 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_flags = do_present | changed;
+ ss->ss_ctxcsn = ctxcsn;
+ ss->ss_numcsns = numcsns;
+ ss->ss_sids = sids;
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;
- op->o_sync_mode &= SLAP_CONTROL_MASK;
-
/* 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 ) {
+ if ( !changed ) {
rs->sr_err = LDAP_SUCCESS;
rs->sr_nentries = 0;
send_ldap_result( op, rs );
@@ -1403,51 +2592,430 @@ shortcut:
}
static int
-syncprov_db_config(
- BackendDB *be,
- const char *fname,
- int lineno,
- int argc,
- char **argv
-)
+syncprov_operational(
+ Operation *op,
+ SlapReply *rs )
{
- slap_overinst *on = (slap_overinst *)be->bd_info;
+ slap_overinst *on = (slap_overinst *)op->o_bd->bd_info;
syncprov_info_t *si = (syncprov_info_t *)on->on_bi.bi_private;
-#if 0
- if ( strcasecmp( argv[ 0 ], "syncprov-checkpoint" ) == 0 ) {
- if ( argc != 3 ) {
- fprintf( stderr, "%s: line %d: wrong number of arguments in "
- "\"syncprov-checkpoint \"\n", fname, lineno );
- return -1;
+ /* This prevents generating unnecessarily; frontend will strip
+ * any statically stored copy.
+ */
+ if ( op->o_sync != SLAP_CONTROL_NONE )
+ return SLAP_CB_CONTINUE;
+
+ if ( rs->sr_entry &&
+ dn_match( &rs->sr_entry->e_nname, &si->si_contextdn )) {
+
+ 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;
+ }
+
+ ldap_pvt_thread_rdwr_rlock( &si->si_csn_rwlock );
+ if ( si->si_ctxcsn ) {
+ if ( !a ) {
+ for ( ap = &rs->sr_operational_attrs; *ap;
+ ap=&(*ap)->a_next );
+
+ a = attr_alloc( slap_schema.si_ad_contextCSN );
+ *ap = a;
+ }
+
+ if ( !ap ) {
+ if ( !(rs->sr_flags & REP_ENTRY_MODIFIABLE) ) {
+ Entry *e = entry_dup( rs->sr_entry );
+ if ( rs->sr_flags & REP_ENTRY_MUSTRELEASE ) {
+ overlay_entry_release_ov( op, rs->sr_entry, 0, on );
+ rs->sr_flags ^= REP_ENTRY_MUSTRELEASE;
+ } else if ( rs->sr_flags & REP_ENTRY_MUSTBEFREED ) {
+ entry_free( rs->sr_entry );
+ }
+ rs->sr_entry = e;
+ rs->sr_flags |=
+ REP_ENTRY_MODIFIABLE|REP_ENTRY_MUSTBEFREED;
+ a = attr_find( rs->sr_entry->e_attrs,
+ slap_schema.si_ad_contextCSN );
+ }
+ if ( a->a_nvals != a->a_vals ) {
+ ber_bvarray_free( a->a_nvals );
+ }
+ a->a_nvals = NULL;
+ ber_bvarray_free( a->a_vals );
+ a->a_vals = NULL;
+ a->a_numvals = 0;
+ }
+ attr_valadd( a, si->si_ctxcsn, si->si_ctxcsn, si->si_numcsns );
+ }
+ ldap_pvt_thread_rdwr_runlock( &si->si_csn_rwlock );
}
- si->si_chkops = atoi( argv[1] );
- si->si_chktime = atoi( argv[2] ) * 60;
+ }
+ 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> 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;
+ /* we assume si_chktime is a multiple of 60
+ * because the parsed value was originally
+ * multiplied by 60 */
+ bv.bv_len = snprintf( c->cr_msg, sizeof( c->cr_msg ),
+ "%d %d", si->si_chkops, si->si_chktime/60 );
+ if ( bv.bv_len >= sizeof( c->cr_msg ) ) {
+ rc = 1;
+ } else {
+ bv.bv_val = c->cr_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 ) {
+ snprintf( c->cr_msg, sizeof( c->cr_msg ), "%s unable to parse checkpoint ops # \"%s\"",
+ c->argv[0], c->argv[1] );
+ Debug( LDAP_DEBUG_CONFIG|LDAP_DEBUG_NONE,
+ "%s: %s\n", c->log, c->cr_msg, 0 );
+ return ARG_BAD_CONF;
+ }
+ if ( si->si_chkops <= 0 ) {
+ snprintf( c->cr_msg, sizeof( c->cr_msg ), "%s invalid checkpoint ops # \"%d\"",
+ c->argv[0], si->si_chkops );
+ Debug( LDAP_DEBUG_CONFIG|LDAP_DEBUG_NONE,
+ "%s: %s\n", c->log, c->cr_msg, 0 );
+ return ARG_BAD_CONF;
+ }
+ if ( lutil_atoi( &si->si_chktime, c->argv[2] ) != 0 ) {
+ snprintf( c->cr_msg, sizeof( c->cr_msg ), "%s unable to parse checkpoint time \"%s\"",
+ c->argv[0], c->argv[1] );
+ Debug( LDAP_DEBUG_CONFIG|LDAP_DEBUG_NONE,
+ "%s: %s\n", c->log, c->cr_msg, 0 );
+ return ARG_BAD_CONF;
+ }
+ if ( si->si_chktime <= 0 ) {
+ snprintf( c->cr_msg, sizeof( c->cr_msg ), "%s invalid checkpoint time \"%d\"",
+ c->argv[0], si->si_chkops );
+ Debug( LDAP_DEBUG_CONFIG|LDAP_DEBUG_NONE,
+ "%s: %s\n", c->log, c->cr_msg, 0 );
+ return ARG_BAD_CONF;
+ }
+ si->si_chktime *= 60;
+ break;
+ case SP_SESSL: {
+ sessionlog *sl;
+ int size = c->value_int;
+
+ if ( size < 0 ) {
+ snprintf( c->cr_msg, sizeof( c->cr_msg ), "%s size %d is negative",
+ c->argv[0], size );
+ Debug( LDAP_DEBUG_CONFIG|LDAP_DEBUG_NONE,
+ "%s: %s\n", c->log, c->cr_msg, 0 );
+ return ARG_BAD_CONF;
+ }
+ sl = si->si_logs;
+ if ( !sl ) {
+ sl = ch_malloc( sizeof( sessionlog ) + LDAP_PVT_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,
+ ConfigReply *cr
+)
+{
+ 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;
+ Operation *op;
+ Entry *e = NULL;
+ Attribute *a;
+ int rc;
+ void *thrctx = NULL;
+
+ if ( !SLAP_LASTMOD( be )) {
+ Debug( LDAP_DEBUG_ANY,
+ "syncprov_db_open: invalid config, lastmod must be enabled\n", 0, 0, 0 );
+ return -1;
+ }
+
+ 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, &opbuf, thrctx );
+ op = &opbuf.ob_op;
+ op->o_bd = be;
+ op->o_dn = be->be_rootdn;
+ op->o_ndn = be->be_rootndn;
+
+ if ( SLAP_SYNC_SUBENTRY( be )) {
+ build_new_dn( &si->si_contextdn, be->be_nsuffix,
+ (struct berval *)&slap_ldapsync_cn_bv, NULL );
} else {
- return SLAP_CONF_UNKNOWN;
+ si->si_contextdn = be->be_nsuffix[0];
+ }
+ rc = overlay_entry_get_ov( op, &si->si_contextdn, NULL,
+ slap_schema.si_ad_contextCSN, 0, &e, on );
+
+ if ( e ) {
+ ldap_pvt_thread_t tid;
+
+ a = attr_find( e->e_attrs, slap_schema.si_ad_contextCSN );
+ if ( a ) {
+ ber_bvarray_dup_x( &si->si_ctxcsn, a->a_vals, NULL );
+ si->si_numcsns = a->a_numvals;
+ si->si_sids = slap_parse_csn_sids( si->si_ctxcsn, a->a_numvals, NULL );
+ }
+ overlay_entry_release_ov( op, e, 0, on );
+ if ( si->si_ctxcsn && !SLAP_DBCLEAN( be )) {
+ 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 );
+ }
}
-#endif
- return SLAP_CONF_UNKNOWN;
+ /* Didn't find a contextCSN, should we generate one? */
+ if ( !si->si_ctxcsn ) {
+ char csnbuf[ LDAP_PVT_CSNSTR_BUFSIZE ];
+ struct berval csn;
+
+ if ( SLAP_SYNC_SHADOW( op->o_bd )) {
+ /* If we're also a consumer, then don't generate anything.
+ * Wait for our provider to send it to us, or for a local
+ * modify if we have multimaster.
+ */
+ goto out;
+ }
+ csn.bv_val = csnbuf;
+ csn.bv_len = sizeof( csnbuf );
+ slap_get_csn( op, &csn, 0 );
+ value_add_one( &si->si_ctxcsn, &csn );
+ si->si_numcsns = 1;
+ si->si_sids = ch_malloc( sizeof(int) );
+ si->si_sids[0] = slap_serverID;
+
+ /* make sure we do a checkpoint on close */
+ si->si_numops++;
+ }
+
+out:
+ op->o_bd->bd_info = (BackendInfo *)on;
+ return 0;
+}
+
+/* Write the current contextCSN into the underlying db.
+ */
+static int
+syncprov_db_close(
+ BackendDB *be,
+ ConfigReply *cr
+)
+{
+ 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 = {0};
+ OperationBuffer opbuf;
+ Operation *op;
+ SlapReply rs = {REP_RESULT};
+ void *thrctx;
+
+ thrctx = ldap_pvt_thread_pool_context();
+ connection_fake_init( &conn, &opbuf, thrctx );
+ op = &opbuf.ob_op;
+ op->o_bd = be;
+ op->o_dn = be->be_rootdn;
+ op->o_ndn = be->be_rootndn;
+ syncprov_checkpoint( op, &rs, on );
+ }
+
+ return 0;
}
static int
syncprov_db_init(
- BackendDB *be
+ BackendDB *be,
+ ConfigReply *cr
)
{
slap_overinst *on = (slap_overinst *)be->bd_info;
syncprov_info_t *si;
+ if ( SLAP_ISGLOBALOVERLAY( be ) ) {
+ Debug( LDAP_DEBUG_ANY,
+ "syncprov must be instantiated within a database.\n",
+ 0, 0, 0 );
+ return 1;
+ }
+
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_rdwr_init( &si->si_csn_rwlock );
ldap_pvt_thread_mutex_init( &si->si_ops_mutex );
- si->si_ctxcsn.bv_val = si->si_ctxcsnbuf;
+ ldap_pvt_thread_mutex_init( &si->si_mods_mutex );
+ ldap_pvt_thread_mutex_init( &si->si_resp_mutex );
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;
@@ -1457,15 +3025,33 @@ syncprov_db_init(
static int
syncprov_db_destroy(
- BackendDB *be
+ BackendDB *be,
+ ConfigReply *cr
)
{
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 ) {
+ slog_entry *se = si->si_logs->sl_head;
+
+ while ( se ) {
+ slog_entry *se_next = se->se_next;
+ ch_free( se );
+ se = se_next;
+ }
+
+ ch_free( si->si_logs );
+ }
+ if ( si->si_ctxcsn )
+ ber_bvarray_free( si->si_ctxcsn );
+ if ( si->si_sids )
+ ch_free( si->si_sids );
+ ldap_pvt_thread_mutex_destroy( &si->si_resp_mutex );
+ 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 );
+ ldap_pvt_thread_rdwr_destroy( &si->si_csn_rwlock );
ch_free( si );
}
@@ -1478,7 +3064,8 @@ static int syncprov_parseCtrl (
LDAPControl *ctrl )
{
ber_tag_t tag;
- BerElement *ber;
+ BerElementBuffer berbuf;
+ BerElement *ber = (BerElement *)&berbuf;
ber_int_t mode;
ber_len_t len;
struct berval cookie = BER_BVNULL;
@@ -1495,8 +3082,13 @@ static int syncprov_parseCtrl (
return LDAP_PROTOCOL_ERROR;
}
- if ( ctrl->ldctl_value.bv_len == 0 ) {
- rs->sr_text = "Sync control value is empty (or absent)";
+ if ( BER_BVISNULL( &ctrl->ldctl_value ) ) {
+ rs->sr_text = "Sync control value is absent";
+ return LDAP_PROTOCOL_ERROR;
+ }
+
+ if ( BER_BVISEMPTY( &ctrl->ldctl_value ) ) {
+ rs->sr_text = "Sync control value is empty";
return LDAP_PROTOCOL_ERROR;
}
@@ -1512,11 +3104,7 @@ static int syncprov_parseCtrl (
* }
*/
- ber = ber_init( &ctrl->ldctl_value );
- if( ber == NULL ) {
- rs->sr_text = "internal error";
- return LDAP_OTHER;
- }
+ ber_init2( ber, &ctrl->ldctl_value, 0 );
if ( (tag = ber_scanf( ber, "{i" /*}*/, &mode )) == LBER_ERROR ) {
rs->sr_text = "Sync control : mode decoding error";
@@ -1538,10 +3126,11 @@ static int syncprov_parseCtrl (
tag = ber_peek_tag( ber, &len );
if ( tag == LDAP_TAG_SYNC_COOKIE ) {
- if (( ber_scanf( ber, /*{*/ "o", &cookie )) == LBER_ERROR ) {
+ 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 ) {
@@ -1556,13 +3145,19 @@ static int syncprov_parseCtrl (
sr = op->o_tmpcalloc( 1, sizeof(struct sync_control), op->o_tmpmemctx );
sr->sr_rhint = rhint;
if (!BER_BVISNULL(&cookie)) {
- ber_bvarray_add( &sr->sr_state.octet_str, &cookie );
- slap_parse_sync_cookie( &sr->sr_state );
+ ber_dupbv_x( &sr->sr_state.octet_str, &cookie, op->o_tmpmemctx );
+ /* If parse fails, pretend no cookie was sent */
+ if ( slap_parse_sync_cookie( &sr->sr_state, op->o_tmpmemctx ) ||
+ sr->sr_state.rid == -1 ) {
+ if ( sr->sr_state.ctxcsn ) {
+ ber_bvarray_free_x( sr->sr_state.ctxcsn, op->o_tmpmemctx );
+ sr->sr_state.ctxcsn = NULL;
+ }
+ sr->sr_state.numcsns = 0;
+ }
}
- op->o_controls[sync_cid] = sr;
-
- (void) ber_free( ber, 1 );
+ op->o_controls[slap_cids.sc_LDAPsync] = sr;
op->o_sync = ctrl->ldctl_iscritical
? SLAP_CONTROL_CRITICAL
@@ -1581,39 +3176,43 @@ static int syncprov_parseCtrl (
static slap_overinst syncprov;
int
-syncprov_init()
+syncprov_initialize()
{
int rc;
rc = register_supported_control( LDAP_CONTROL_SYNC,
- SLAP_CTRL_HIDE|SLAP_CTRL_SEARCH, NULL,
- syncprov_parseCtrl, &sync_cid );
+ SLAP_CTRL_SEARCH, NULL,
+ syncprov_parseCtrl, &slap_cids.sc_LDAPsync );
if ( rc != LDAP_SUCCESS ) {
- fprintf( stderr, "Failed to register control %d\n", rc );
+ 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_config = syncprov_db_config;
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;
-#if 0
syncprov.on_bi.bi_op_compare = syncprov_op_compare;
-#endif
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;
-#if 0
- syncprov.on_response = syncprov_response;
-#endif
+ 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 );
}
@@ -1622,7 +3221,7 @@ syncprov_init()
int
init_module( int argc, char *argv[] )
{
- return syncprov_init();
+ return syncprov_initialize();
}
#endif /* SLAPD_OVER_SYNCPROV == SLAPD_MOD_DYNAMIC */