/* $OpenLDAP$ */
/* This work is part of OpenLDAP Software <http://www.openldap.org/>.
*
- * Copyright 2004-2006 The OpenLDAP Foundation.
+ * Copyright 2004-2007 The OpenLDAP Foundation.
* Portions Copyright 2005 Symas Corporation.
* All rights reserved.
*
#include "slap.h"
#include "lutil.h"
-/* config block */
+#include "config.h"
-typedef struct translucent_configuration {
- int debug;
+/* config block */
+typedef struct translucent_info {
+ BackendDB db; /* captive backend */
+ AttributeName *local; /* valid attrs for local filters */
+ AttributeName *remote; /* valid attrs for remote filters */
int strict;
- int no_add;
- int glue;
-} translucent_configuration;
+ int no_glue;
+ int defer_db_open;
+} translucent_info;
+
+static ConfigLDAPadd translucent_ldadd;
+static ConfigCfAdd translucent_cfadd;
+
+static ConfigDriver translucent_cf_gen;
+
+enum {
+ TRANS_LOCAL = 1,
+ TRANS_REMOTE
+};
+
+static ConfigTable translucentcfg[] = {
+ { "translucent_strict", "on|off", 1, 2, 0,
+ ARG_ON_OFF|ARG_OFFSET,
+ (void *)offsetof(translucent_info, strict),
+ "( OLcfgOvAt:14.1 NAME 'olcTranslucentStrict' "
+ "DESC 'Reveal attribute deletion constraint violations' "
+ "SYNTAX OMsBoolean SINGLE-VALUE )", NULL, NULL },
+ { "translucent_no_glue", "on|off", 1, 2, 0,
+ ARG_ON_OFF|ARG_OFFSET,
+ (void *)offsetof(translucent_info, no_glue),
+ "( OLcfgOvAt:14.2 NAME 'olcTranslucentNoGlue' "
+ "DESC 'Disable automatic glue records for ADD and MODRDN' "
+ "SYNTAX OMsBoolean SINGLE-VALUE )", NULL, NULL },
+ { "translucent_local", "attr[,attr...]", 1, 2, 0,
+ ARG_STRING|ARG_MAGIC|TRANS_LOCAL,
+ translucent_cf_gen,
+ "( OLcfgOvAt:14.3 NAME 'olcTranslucentLocal' "
+ "DESC 'Attributes to use in local search filter' "
+ "SYNTAX OMsDirectoryString )", NULL, NULL },
+ { "translucent_remote", "attr[,attr...]", 1, 2, 0,
+ ARG_STRING|ARG_MAGIC|TRANS_REMOTE,
+ translucent_cf_gen,
+ "( OLcfgOvAt:14.4 NAME 'olcTranslucentRemote' "
+ "DESC 'Attributes to use in remote search filter' "
+ "SYNTAX OMsDirectoryString )", NULL, NULL },
+ { NULL, NULL, 0, 0, 0, ARG_IGNORED }
+};
+
+static ConfigTable transdummy[] = {
+ { "", "", 0, 0, 0, ARG_IGNORED,
+ NULL, "( OLcfgGlAt:13 NAME 'olcDatabase' "
+ "DESC 'The backend type for a database instance' "
+ "SUP olcBackend SINGLE-VALUE X-ORDERED 'SIBLINGS' )", NULL, NULL },
+ { NULL, NULL, 0, 0, 0, ARG_IGNORED }
+};
+
+static ConfigOCs translucentocs[] = {
+ { "( OLcfgOvOc:14.1 "
+ "NAME 'olcTranslucentConfig' "
+ "DESC 'Translucent configuration' "
+ "SUP olcOverlayConfig "
+ "MAY ( olcTranslucentStrict $ olcTranslucentNoGlue $"
+ " olcTranslucentLocal $ olcTranslucentRemote ) )",
+ Cft_Overlay, translucentcfg, NULL, translucent_cfadd },
+ { "( OLcfgOvOc:14.2 "
+ "NAME 'olcTranslucentDatabase' "
+ "DESC 'Translucent target database configuration' "
+ "AUXILIARY )", Cft_Misc, transdummy, translucent_ldadd },
+ { NULL, 0, NULL }
+};
+/* for translucent_init() */
-/* stack of captive backends */
+static int
+translucent_ldadd_cleanup( ConfigArgs *ca )
+{
+ slap_overinst *on = ca->private;
+ translucent_info *ov = on->on_bi.bi_private;
-typedef struct overlay_stack {
- BackendInfo *info; /* captive backend */
- void *private; /* local backend_private */
- translucent_configuration *config; /* our_private: configuration */
-} overlay_stack;
+ ov->defer_db_open = 0;
+ return backend_startup_one( ca->be, &ca->reply );
+}
-/* for translucent_init() */
+static int
+translucent_ldadd( CfEntryInfo *cei, Entry *e, ConfigArgs *ca )
+{
+ slap_overinst *on;
+ translucent_info *ov;
+
+ Debug(LDAP_DEBUG_TRACE, "==> translucent_ldadd\n", 0, 0, 0);
+
+ if ( cei->ce_type != Cft_Overlay || !cei->ce_bi ||
+ cei->ce_bi->bi_cf_ocs != translucentocs )
+ return LDAP_CONSTRAINT_VIOLATION;
+
+ on = (slap_overinst *)cei->ce_bi;
+ ov = on->on_bi.bi_private;
+ ca->be = &ov->db;
+ ca->private = on;
+ if ( CONFIG_ONLINE_ADD( ca ))
+ ca->cleanup = translucent_ldadd_cleanup;
+ else
+ ov->defer_db_open = 0;
+
+ return LDAP_SUCCESS;
+}
+
+static int
+translucent_cfadd( Operation *op, SlapReply *rs, Entry *e, ConfigArgs *ca )
+{
+ CfEntryInfo *cei = e->e_private;
+ slap_overinst *on = (slap_overinst *)cei->ce_bi;
+ translucent_info *ov = on->on_bi.bi_private;
+ struct berval bv;
+
+ Debug(LDAP_DEBUG_TRACE, "==> translucent_cfadd\n", 0, 0, 0);
+
+ /* FIXME: should not hardcode "olcDatabase" here */
+ bv.bv_len = snprintf( ca->cr_msg, sizeof( ca->cr_msg ),
+ "olcDatabase=%s", ov->db.bd_info->bi_type );
+ if ( bv.bv_len < 0 || bv.bv_len >= sizeof( ca->cr_msg ) ) {
+ return -1;
+ }
+ bv.bv_val = ca->cr_msg;
+ ca->be = &ov->db;
+ ov->defer_db_open = 0;
+
+ /* We can only create this entry if the database is table-driven
+ */
+ if ( ov->db.bd_info->bi_cf_ocs )
+ config_build_entry( op, rs, cei, ca, &bv,
+ ov->db.bd_info->bi_cf_ocs,
+ &translucentocs[1] );
+
+ return 0;
+}
+
+static int
+translucent_cf_gen( ConfigArgs *c )
+{
+ slap_overinst *on = (slap_overinst *)c->bi;
+ translucent_info *ov = on->on_bi.bi_private;
+ AttributeName **an, *a2;
+ int i;
+
+ if ( c->type == TRANS_LOCAL )
+ an = &ov->local;
+ else
+ an = &ov->remote;
+
+ if ( c->op == SLAP_CONFIG_EMIT ) {
+ if ( !*an )
+ return 1;
+ for ( i = 0; !BER_BVISNULL(&(*an)[i].an_name); i++ ) {
+ value_add_one( &c->rvalue_vals, &(*an)[i].an_name );
+ }
+ return ( i < 1 );
+ } else if ( c->op == LDAP_MOD_DELETE ) {
+ if ( c->valx < 0 ) {
+ anlist_free( *an, 1, NULL );
+ *an = NULL;
+ } else {
+ i = c->valx;
+ ch_free( (*an)[i].an_name.bv_val );
+ do {
+ (*an)[i] = (*an)[i+1];
+ } while ( !BER_BVISNULL( &(*an)[i].an_name ));
+ }
+ return 0;
+ }
+ a2 = str2anlist( *an, c->argv[1], "," );
+ if ( !a2 ) {
+ snprintf( c->cr_msg, sizeof( c->cr_msg ), "%s unable to parse attribute %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;
+ }
+ *an = a2;
+ return 0;
+}
static slap_overinst translucent;
Debug(LDAP_DEBUG_TRACE, "=> glue_parent: fabricating glue for <%s>\n", ndn.bv_val, 0, 0);
- e = ch_calloc(1, sizeof(Entry));
+ e = entry_alloc();
e->e_id = NOID;
ber_dupbv(&e->e_name, &ndn);
ber_dupbv(&e->e_nname, &ndn);
- a = ch_calloc(1, sizeof(Attribute));
- a->a_desc = slap_schema.si_ad_objectClass;
+ a = attr_alloc( slap_schema.si_ad_objectClass );
+ a->a_numvals = 2;
a->a_vals = ch_malloc(sizeof(struct berval) * 3);
ber_dupbv(&a->a_vals[0], &glue[0]);
ber_dupbv(&a->a_vals[1], &glue[1]);
a->a_next = e->e_attrs;
e->e_attrs = a;
- a = ch_calloc(1, sizeof(Attribute));
- a->a_desc = slap_schema.si_ad_structuralObjectClass;
+ a = attr_alloc( slap_schema.si_ad_structuralObjectClass );
+ a->a_numvals = 1;
a->a_vals = ch_malloc(sizeof(struct berval) * 2);
ber_dupbv(&a->a_vals[0], &glue[1]);
ber_dupbv(&a->a_vals[1], &glue[2]);
nop.o_req_dn = ndn;
nop.o_req_ndn = ndn;
nop.ora_e = e;
- nop.o_bd->bd_info = (BackendInfo *) on->on_info->oi_orig;
+ nop.o_bd->bd_info = (BackendInfo *) on->on_info->oi_orig;
syncrepl_add_glue(&nop, e);
+ nop.o_bd->bd_info = (BackendInfo *) on;
op->o_tmpfree( ndn.bv_val, op->o_tmpmemctx );
** free only the Attribute*, not the contents;
**
*/
-void free_attr_chain(Attribute *a) {
- Attribute *ax;
- for(; a; a = ax) {
- ax = a->a_next;
- ch_free(a);
+void free_attr_chain(Attribute *b) {
+ Attribute *a;
+ for(a=b; a; a=a->a_next) {
+ a->a_vals = NULL;
+ a->a_nvals = NULL;
}
+ attrs_free( b );
return;
}
/*
** translucent_add()
** if not bound as root, send ACCESS error;
-** if config.glue, glue_parent();
+** if glue, glue_parent();
** return CONTINUE;
**
*/
static int translucent_add(Operation *op, SlapReply *rs) {
slap_overinst *on = (slap_overinst *) op->o_bd->bd_info;
- overlay_stack *ov = on->on_bi.bi_private;
+ translucent_info *ov = on->on_bi.bi_private;
Debug(LDAP_DEBUG_TRACE, "==> translucent_add: %s\n",
op->o_req_dn.bv_val, 0, 0);
if(!be_isroot(op)) {
op->o_bd->bd_info = (BackendInfo *) on->on_info;
send_ldap_error(op, rs, LDAP_INSUFFICIENT_ACCESS,
"user modification of overlay database not permitted");
+ op->o_bd->bd_info = (BackendInfo *) on;
return(rs->sr_err);
}
- if(!ov->config->glue) glue_parent(op);
+ if(!ov->no_glue) glue_parent(op);
return(SLAP_CB_CONTINUE);
}
/*
** translucent_modrdn()
** if not bound as root, send ACCESS error;
-** if !config.glue, glue_parent();
+** if !glue, glue_parent();
** else return CONTINUE;
**
*/
static int translucent_modrdn(Operation *op, SlapReply *rs) {
slap_overinst *on = (slap_overinst *) op->o_bd->bd_info;
- overlay_stack *ov = on->on_bi.bi_private;
+ translucent_info *ov = on->on_bi.bi_private;
Debug(LDAP_DEBUG_TRACE, "==> translucent_modrdn: %s -> %s\n",
op->o_req_dn.bv_val, op->orr_newrdn.bv_val, 0);
if(!be_isroot(op)) {
op->o_bd->bd_info = (BackendInfo *) on->on_info;
send_ldap_error(op, rs, LDAP_INSUFFICIENT_ACCESS,
"user modification of overlay database not permitted");
+ op->o_bd->bd_info = (BackendInfo *) on;
return(rs->sr_err);
}
- if(!ov->config->glue) glue_parent(op);
+ if(!ov->no_glue) {
+ op->o_tag = LDAP_REQ_ADD;
+ glue_parent(op);
+ op->o_tag = LDAP_REQ_MODRDN;
+ }
return(SLAP_CB_CONTINUE);
}
op->o_bd->bd_info = (BackendInfo *) on->on_info;
send_ldap_error(op, rs, LDAP_INSUFFICIENT_ACCESS,
"user modification of overlay database not permitted");
+ op->o_bd->bd_info = (BackendInfo *) on;
return(rs->sr_err);
}
return(SLAP_CB_CONTINUE);
static int
translucent_tag_cb( Operation *op, SlapReply *rs )
{
- op->o_tag = (ber_tag_t)op->o_callback->sc_private;
+ op->o_tag = LDAP_REQ_MODIFY;
+ op->orm_modlist = op->o_callback->sc_private;
rs->sr_tag = slap_req2res( op->o_tag );
return SLAP_CB_CONTINUE;
static int translucent_modify(Operation *op, SlapReply *rs) {
SlapReply nrs = { REP_RESULT };
- Operation nop = *op;
slap_overinst *on = (slap_overinst *) op->o_bd->bd_info;
- overlay_stack *ov = on->on_bi.bi_private;
- void *private = op->o_bd->be_private;
- Entry ne, *e = NULL, *re = NULL;
+ translucent_info *ov = on->on_bi.bi_private;
+ Entry *e = NULL, *re = NULL;
Attribute *a, *ax;
- Modifications *m, *mm;
+ Modifications *m, **mm;
+ BackendDB *db;
int del, rc, erc = 0;
slap_callback cb = { 0 };
Debug(LDAP_DEBUG_TRACE, "==> translucent_modify: %s\n",
op->o_req_dn.bv_val, 0, 0);
+ if(ov->defer_db_open) {
+ send_ldap_error(op, rs, LDAP_UNAVAILABLE,
+ "remote DB not available");
+ return(rs->sr_err);
+ }
/*
** fetch entry from the captive backend;
** if it did not exist, fail;
**
*/
- op->o_bd->bd_info = (BackendInfo *) on->on_info;
- op->o_bd->be_private = ov->private;
- rc = ov->info->bi_entry_get_rw(op, &op->o_req_ndn, NULL, NULL, 0, &re);
- op->o_bd->be_private = private;
-
- /* if(ov->config->no_add && (!re || rc != LDAP_SUCCESS)) */
+ db = op->o_bd;
+ op->o_bd = &ov->db;
+ rc = ov->db.bd_info->bi_entry_get_rw(op, &op->o_req_ndn, NULL, NULL, 0, &re);
if(rc != LDAP_SUCCESS || re == NULL ) {
- send_ldap_error(op, rs, LDAP_NO_SUCH_OBJECT,
+ send_ldap_error((op), rs, LDAP_NO_SUCH_OBJECT,
"attempt to modify nonexistent local record");
return(rs->sr_err);
}
-
+ op->o_bd = db;
/*
** fetch entry from local backend;
** if it exists:
**
*/
+ op->o_bd->bd_info = (BackendInfo *) on->on_info;
rc = be_entry_get_rw(op, &op->o_req_ndn, NULL, NULL, 0, &e);
+ op->o_bd->bd_info = (BackendInfo *) on;
if(e && rc == LDAP_SUCCESS) {
Debug(LDAP_DEBUG_TRACE, "=> translucent_modify: found local entry\n", 0, 0, 0);
- for(m = op->orm_modlist; m; m = m->sml_next) {
+ for(mm = &op->orm_modlist; *mm; ) {
+ m = *mm;
for(a = e->e_attrs; a; a = a->a_next)
if(a->a_desc == m->sml_desc) break;
- if(a) continue; /* found local attr */
+ if(a) {
+ mm = &m->sml_next;
+ continue; /* found local attr */
+ }
if(m->sml_op == LDAP_MOD_DELETE) {
for(a = re->e_attrs; a; a = a->a_next)
if(a->a_desc == m->sml_desc) break;
erc = LDAP_NO_SUCH_ATTRIBUTE;
goto release;
}
- if(ov->config->strict) {
+ if(ov->strict) {
erc = LDAP_CONSTRAINT_VIOLATION;
goto release;
}
Debug(LDAP_DEBUG_TRACE,
"=> translucent_modify: silently dropping delete: %s\n",
m->sml_desc->ad_cname.bv_val, 0, 0);
- for(mm = op->orm_modlist; mm->sml_next != m; mm = mm->sml_next);
- mm->sml_next = m->sml_next;
- mm = m;
- m = m->sml_next;
- mm->sml_next = NULL; /* hack */
- slap_mods_free(mm, 1);
- if(m) continue;
+ *mm = m->sml_next;
+ m->sml_next = NULL;
+ slap_mods_free(m, 1);
+ continue;
}
m->sml_op = LDAP_MOD_ADD;
+ mm = &m->sml_next;
}
erc = SLAP_CB_CONTINUE;
release:
if(re) {
- op->o_bd->be_private = ov->private;
- if(ov->info->bi_entry_release_rw)
- ov->info->bi_entry_release_rw(op, re, 0);
- else
+ if(ov->db.bd_info->bi_entry_release_rw) {
+ op->o_bd = &ov->db;
+ ov->db.bd_info->bi_entry_release_rw(op, re, 0);
+ op->o_bd = db;
+ } else
entry_free(re);
- op->o_bd->be_private = private;
}
+ op->o_bd->bd_info = (BackendInfo *) on->on_info;
be_entry_release_r(op, e);
+ op->o_bd->bd_info = (BackendInfo *) on;
if(erc == SLAP_CB_CONTINUE) {
- op->o_bd->bd_info = (BackendInfo *) on;
return(erc);
} else if(erc) {
send_ldap_error(op, rs, erc,
/* don't leak remote entry copy */
if(re) {
- op->o_bd->be_private = ov->private;
- if(ov->info->bi_entry_release_rw)
- ov->info->bi_entry_release_rw(op, re, 0);
- else
+ if(ov->db.bd_info->bi_entry_release_rw) {
+ op->o_bd = &ov->db;
+ ov->db.bd_info->bi_entry_release_rw(op, re, 0);
+ op->o_bd = db;
+ } else
entry_free(re);
- op->o_bd->be_private = private;
}
/*
** foreach Modification:
** if MOD_ADD or MOD_REPLACE, add Attribute;
** if no Modifications were suitable:
-** if config.strict, throw CONSTRAINT_VIOLATION;
+** if strict, throw CONSTRAINT_VIOLATION;
** else, return early SUCCESS;
** fabricate Entry with new Attribute chain;
** glue_parent() for this Entry;
Debug(LDAP_DEBUG_TRACE, "=> translucent_modify: fabricating local add\n", 0, 0, 0);
a = NULL;
for(del = 0, ax = NULL, m = op->orm_modlist; m; m = m->sml_next) {
+ Attribute atmp;
if(((m->sml_op & LDAP_MOD_OP) != LDAP_MOD_ADD) &&
((m->sml_op & LDAP_MOD_OP) != LDAP_MOD_REPLACE)) {
Debug(LDAP_DEBUG_ANY,
if((m->sml_op & LDAP_MOD_OP) == LDAP_MOD_DELETE) del++;
continue;
}
- a = ch_calloc(1, sizeof(Attribute));
- a->a_desc = m->sml_desc;
- a->a_vals = m->sml_values;
- a->a_nvals = m->sml_nvalues;
+ atmp.a_desc = m->sml_desc;
+ atmp.a_vals = m->sml_values;
+ atmp.a_nvals = m->sml_nvalues ? m->sml_nvalues : atmp.a_vals;
+ atmp.a_numvals = m->sml_numvals;
+ atmp.a_flags = 0;
+ a = attr_dup( &atmp );
a->a_next = ax;
ax = a;
}
- if(del && ov->config->strict) {
- free_attr_chain(a);
+ if(del && ov->strict) {
+ attrs_free( a );
send_ldap_error(op, rs, LDAP_CONSTRAINT_VIOLATION,
"attempt to delete attributes from local database");
return(rs->sr_err);
}
if(!ax) {
- if(ov->config->strict) {
+ if(ov->strict) {
send_ldap_error(op, rs, LDAP_CONSTRAINT_VIOLATION,
"modification contained other than ADD or REPLACE");
return(rs->sr_err);
}
- op->o_bd->bd_info = (BackendInfo *) on;
/* rs->sr_text = "no valid modification found"; */
rs->sr_err = LDAP_SUCCESS;
send_ldap_result(op, rs);
return(rs->sr_err);
}
- ne.e_id = NOID;
- ne.e_name = op->o_req_dn;
- ne.e_nname = op->o_req_ndn;
- ne.e_attrs = a;
- ne.e_ocflags = 0;
- ne.e_bv.bv_len = 0;
- ne.e_bv.bv_val = NULL;
- ne.e_private = NULL;
+ e = entry_alloc();
+ ber_dupbv( &e->e_name, &op->o_req_dn );
+ ber_dupbv( &e->e_nname, &op->o_req_ndn );
+ e->e_attrs = a;
- nop.o_tag = LDAP_REQ_ADD;
- nop.oq_add.rs_e = ≠
+ op->o_tag = LDAP_REQ_ADD;
+ cb.sc_response = translucent_tag_cb;
+ cb.sc_private = op->orm_modlist;
+ op->oq_add.rs_e = e;
- op->o_bd->bd_info = (BackendInfo *) on;
- glue_parent(&nop);
+ glue_parent(op);
- cb.sc_response = translucent_tag_cb;
- cb.sc_private = (void *)LDAP_REQ_MODIFY;
- cb.sc_next = nop.o_callback;
- nop.o_callback = &cb;
- rc = on->on_info->oi_orig->bi_op_add(&nop, &nrs);
- free_attr_chain(a);
+ cb.sc_next = op->o_callback;
+ op->o_callback = &cb;
+ rc = on->on_info->oi_orig->bi_op_add(op, &nrs);
+ if ( op->ora_e == e )
+ entry_free( e );
+ op->o_callback = cb.sc_next;
return(rc);
}
static int translucent_compare(Operation *op, SlapReply *rs) {
slap_overinst *on = (slap_overinst *) op->o_bd->bd_info;
- overlay_stack *ov = on->on_bi.bi_private;
- void *private = op->o_bd->be_private;
-
+ translucent_info *ov = on->on_bi.bi_private;
AttributeAssertion *ava = op->orc_ava;
Entry *e;
+ BackendDB *db;
int rc;
Debug(LDAP_DEBUG_TRACE, "==> translucent_compare: <%s> %s:%s\n",
** CONTINUE and let it do the compare;
**
*/
-
- op->o_bd->bd_info = (BackendInfo *) on->on_info;
- rc = be_entry_get_rw(op, &op->o_req_ndn, NULL, ava->aa_desc, 0, &e);
- if(e && rc == LDAP_SUCCESS) {
- be_entry_release_r(op, e);
- op->o_bd->bd_info = (BackendInfo *) on;
+ rc = overlay_entry_get_ov(op, &op->o_req_ndn, NULL, ava->aa_desc, 0, &e, on);
+ if(rc == LDAP_SUCCESS && e) {
+ overlay_entry_release_ov(op, e, 0, on);
return(SLAP_CB_CONTINUE);
}
+ if(ov->defer_db_open) {
+ send_ldap_error(op, rs, LDAP_UNAVAILABLE,
+ "remote DB not available");
+ return(rs->sr_err);
+ }
/*
** call compare() in the captive backend;
** return the result;
**
*/
+ db = op->o_bd;
+ op->o_bd = &ov->db;
+ rc = ov->db.bd_info->bi_op_compare(op, rs);
+ op->o_bd = db;
- op->o_bd->be_private = ov->private;
- rc = ov->info->bi_op_compare(op, rs);
- op->o_bd->be_private = private;
- op->o_bd->bd_info = (BackendInfo *) on;
return(rc);
}
/*
** translucent_search_cb()
-** merge local data with the search result
+** merge local data with remote data
**
+** Four cases:
+** 1: remote search, no local filter
+** merge data and send immediately
+** 2: remote search, with local filter
+** merge data and save
+** 3: local search, no remote filter
+** merge data and send immediately
+** 4: local search, with remote filter
+** check list, merge, send, delete
*/
+#define RMT_SIDE 0
+#define LCL_SIDE 1
+#define USE_LIST 2
+
+typedef struct trans_ctx {
+ BackendDB *db;
+ slap_overinst *on;
+ Filter *orig;
+ Avlnode *list;
+ int step;
+} trans_ctx;
+
static int translucent_search_cb(Operation *op, SlapReply *rs) {
+ trans_ctx *tc;
+ BackendDB *db;
slap_overinst *on;
- Entry *e, *re = NULL;
+ translucent_info *ov;
+ Entry *le, *re;
Attribute *a, *ax, *an, *as = NULL;
- void *private;
int rc;
+ tc = op->o_callback->sc_private;
+
+ /* Don't let the op complete while we're gathering data */
+ if ( rs->sr_type == REP_RESULT && ( tc->step & USE_LIST ))
+ return 0;
+
if(!op || !rs || rs->sr_type != REP_SEARCH || !rs->sr_entry)
return(SLAP_CB_CONTINUE);
- Debug(LDAP_DEBUG_TRACE, "==> tranclucent_search_cb: %s\n",
+ Debug(LDAP_DEBUG_TRACE, "==> translucent_search_cb: %s\n",
rs->sr_entry->e_name.bv_val, 0, 0);
- on = (slap_overinst *) op->o_bd->bd_info;
- op->o_bd->bd_info = (BackendInfo *) on->on_info;
-
- private = op->o_bd->be_private;
- op->o_bd->be_private = op->o_callback->sc_private;
-
- rc = be_entry_get_rw(op, &rs->sr_entry->e_nname, NULL, NULL, 0, &e);
+ on = tc->on;
+ ov = on->on_bi.bi_private;
+
+ db = op->o_bd;
+ re = NULL;
+
+ /* If we have local, get remote */
+ if ( tc->step & LCL_SIDE ) {
+ le = rs->sr_entry;
+ /* If entry is already on list, use it */
+ if ( tc->step & USE_LIST ) {
+ re = tavl_delete( &tc->list, le, entry_dn_cmp );
+ if ( re ) {
+ if ( rs->sr_flags & REP_ENTRY_MUSTRELEASE ) {
+ rs->sr_flags ^= REP_ENTRY_MUSTRELEASE;
+ be_entry_release_r( op, rs->sr_entry );
+ }
+ if ( rs->sr_flags & REP_ENTRY_MUSTBEFREED ) {
+ rs->sr_flags ^= REP_ENTRY_MUSTBEFREED;
+ entry_free( rs->sr_entry );
+ }
+ rc = test_filter( op, re, tc->orig );
+ if ( rc == LDAP_COMPARE_TRUE ) {
+ rs->sr_flags |= REP_ENTRY_MUSTBEFREED;
+ rs->sr_entry = re;
+ return SLAP_CB_CONTINUE;
+ } else {
+ entry_free( re );
+ rs->sr_entry = NULL;
+ return 0;
+ }
+ }
+ }
+ op->o_bd = &ov->db;
+ rc = be_entry_get_rw( op, &rs->sr_entry->e_nname, NULL, NULL, 0, &re );
+ if ( rc == LDAP_SUCCESS && re ) {
+ Entry *tmp = entry_dup( re );
+ be_entry_release_r( op, re );
+ re = tmp;
+ }
+ } else {
+ /* Else we have remote, get local */
+ op->o_bd = tc->db;
+ rc = overlay_entry_get_ov(op, &rs->sr_entry->e_nname, NULL, NULL, 0, &le, on);
+ if ( rc == LDAP_SUCCESS && le ) {
+ re = entry_dup( rs->sr_entry );
+ if ( rs->sr_flags & REP_ENTRY_MUSTRELEASE ) {
+ rs->sr_flags ^= REP_ENTRY_MUSTRELEASE;
+ be_entry_release_r( op, rs->sr_entry );
+ }
+ if ( rs->sr_flags & REP_ENTRY_MUSTBEFREED ) {
+ rs->sr_flags ^= REP_ENTRY_MUSTBEFREED;
+ entry_free( rs->sr_entry );
+ }
+ } else {
+ le = NULL;
+ }
+ }
/*
-** if we got an entry from local backend:
-** make a copy of this search result;
+** if we got remote and local entry:
** foreach local attr:
-** foreach search result attr:
-** if match, result attr with local attr;
+** foreach remote attr:
+** if match, remote attr with local attr;
** if new local, add to list;
-** append new local attrs to search result;
+** append new local attrs to remote;
**
*/
- if(e && rc == LDAP_SUCCESS) {
- re = entry_dup(rs->sr_entry);
- for(ax = e->e_attrs; ax; ax = ax->a_next) {
-#if 0
- if(is_at_operational(ax->a_desc->ad_type)) continue;
-#endif
+ if ( re && le ) {
+ for(ax = le->e_attrs; ax; ax = ax->a_next) {
for(a = re->e_attrs; a; a = a->a_next) {
if(a->a_desc == ax->a_desc) {
if(a->a_vals != a->a_nvals)
an->a_next = as;
as = an;
}
- be_entry_release_r(op, e);
+ /* Dispose of local entry */
+ if ( tc->step & LCL_SIDE ) {
+ if ( rs->sr_flags & REP_ENTRY_MUSTRELEASE ) {
+ rs->sr_flags ^= REP_ENTRY_MUSTRELEASE;
+ be_entry_release_r( op, rs->sr_entry );
+ }
+ if ( rs->sr_flags & REP_ENTRY_MUSTBEFREED ) {
+ rs->sr_flags ^= REP_ENTRY_MUSTBEFREED;
+ entry_free( rs->sr_entry );
+ }
+ } else {
+ overlay_entry_release_ov(op, le, 0, on);
+ }
/* literally append, so locals are always last */
if(as) {
re->e_attrs = as;
}
}
- rs->sr_entry = re;
- rs->sr_flags |= REP_ENTRY_MUSTBEFREED;
+ /* If both filters, save entry for later */
+ if ( tc->step == (USE_LIST|RMT_SIDE) ) {
+ tavl_insert( &tc->list, re, entry_dn_cmp, avl_dup_error );
+ rs->sr_entry = NULL;
+ rc = 0;
+ } else {
+ /* send it now */
+ rs->sr_entry = re;
+ rs->sr_flags |= REP_ENTRY_MUSTBEFREED;
+ rc = SLAP_CB_CONTINUE;
+ }
+ } else if ( le ) {
+ /* Only a local entry: remote was deleted
+ * Ought to delete the local too...
+ */
+ rc = 0;
+ } else if ( tc->step & USE_LIST ) {
+ /* Only a remote entry, but both filters:
+ * Test the complete filter
+ */
+ rc = test_filter( op, rs->sr_entry, tc->orig );
+ if ( rc == LDAP_COMPARE_TRUE ) {
+ rc = SLAP_CB_CONTINUE;
+ } else {
+ rc = 0;
+ }
+ } else {
+ /* Only a remote entry, only remote filter:
+ * just pass thru
+ */
+ rc = SLAP_CB_CONTINUE;
}
- op->o_bd->be_private = private;
- op->o_bd->bd_info = (BackendInfo *) on;
+ op->o_bd = db;
+ return rc;
+}
- return(SLAP_CB_CONTINUE);
+/* Dup the filter, excluding invalid elements */
+static Filter *
+trans_filter_dup(Operation *op, Filter *f, AttributeName *an)
+{
+ Filter *n = NULL;
+
+ if ( !f )
+ return NULL;
+
+ switch( f->f_choice & SLAPD_FILTER_MASK ) {
+ case SLAPD_FILTER_COMPUTED:
+ n = op->o_tmpalloc( sizeof(Filter), op->o_tmpmemctx );
+ n->f_choice = f->f_choice;
+ n->f_result = f->f_result;
+ n->f_next = NULL;
+ break;
+
+ case LDAP_FILTER_PRESENT:
+ if ( ad_inlist( f->f_desc, an )) {
+ n = op->o_tmpalloc( sizeof(Filter), op->o_tmpmemctx );
+ n->f_choice = f->f_choice;
+ n->f_desc = f->f_desc;
+ n->f_next = NULL;
+ }
+ break;
+
+ case LDAP_FILTER_EQUALITY:
+ case LDAP_FILTER_GE:
+ case LDAP_FILTER_LE:
+ case LDAP_FILTER_APPROX:
+ case LDAP_FILTER_SUBSTRINGS:
+ case LDAP_FILTER_EXT:
+ if ( !f->f_av_desc || ad_inlist( f->f_av_desc, an )) {
+ n = op->o_tmpalloc( sizeof(Filter), op->o_tmpmemctx );
+ n->f_choice = f->f_choice;
+ n->f_ava = f->f_ava;
+ n->f_next = NULL;
+ }
+ break;
+
+ case LDAP_FILTER_AND:
+ case LDAP_FILTER_OR:
+ case LDAP_FILTER_NOT: {
+ Filter **p;
+
+ n = op->o_tmpalloc( sizeof(Filter), op->o_tmpmemctx );
+ n->f_choice = f->f_choice;
+ n->f_next = NULL;
+
+ for ( p = &n->f_list, f = f->f_list; f; f = f->f_next ) {
+ *p = trans_filter_dup( op, f, an );
+ if ( !*p )
+ continue;
+ p = &(*p)->f_next;
+ }
+ /* nothing valid in this list */
+ if ( !n->f_list ) {
+ op->o_tmpfree( n, op->o_tmpmemctx );
+ return NULL;
+ }
+ /* Only 1 element in this list */
+ if ((n->f_choice & SLAPD_FILTER_MASK) != LDAP_FILTER_NOT &&
+ !n->f_list->f_next ) {
+ f = n->f_list;
+ *n = *f;
+ op->o_tmpfree( f, op->o_tmpmemctx );
+ }
+ break;
+ }
+ }
+ return n;
+}
+
+static void
+trans_filter_free( Operation *op, Filter *f )
+{
+ Filter *n, *p, *next;
+
+ f->f_choice &= SLAPD_FILTER_MASK;
+
+ switch( f->f_choice ) {
+ case LDAP_FILTER_AND:
+ case LDAP_FILTER_OR:
+ case LDAP_FILTER_NOT:
+ /* Free in reverse order */
+ n = NULL;
+ for ( p = f->f_list; p; p = next ) {
+ next = p->f_next;
+ p->f_next = n;
+ n = p;
+ }
+ for ( p = n; p; p = next ) {
+ next = p->f_next;
+ trans_filter_free( op, p );
+ }
+ break;
+ default:
+ break;
+ }
+ op->o_tmpfree( f, op->o_tmpmemctx );
}
/*
*/
static int translucent_search(Operation *op, SlapReply *rs) {
- Operation nop = *op;
-
slap_overinst *on = (slap_overinst *) op->o_bd->bd_info;
+ translucent_info *ov = on->on_bi.bi_private;
slap_callback cb = { NULL, NULL, NULL, NULL };
- overlay_stack *ov = on->on_bi.bi_private;
- void *private = op->o_bd->be_private;
- int rc;
+ trans_ctx tc;
+ Filter *fl, *fr;
+ struct berval fbv;
+ int rc = 0;
Debug(LDAP_DEBUG_TRACE, "==> translucent_search: <%s> %s\n",
op->o_req_dn.bv_val, op->ors_filterstr.bv_val, 0);
- cb.sc_response = (slap_response *) translucent_search_cb;
- cb.sc_private = private;
- cb.sc_next = nop.o_callback;
- nop.o_callback = &cb;
+ if(ov->defer_db_open) {
+ send_ldap_error(op, rs, LDAP_UNAVAILABLE,
+ "remote DB not available");
+ return(rs->sr_err);
+ }
+
+ fr = ov->remote ? trans_filter_dup( op, op->ors_filter, ov->remote ) : NULL;
+ fl = ov->local ? trans_filter_dup( op, op->ors_filter, ov->local ) : NULL;
+ cb.sc_response = (slap_response *) translucent_search_cb;
+ cb.sc_private = &tc;
+ cb.sc_next = op->o_callback;
+
+ tc.db = op->o_bd;
+ tc.on = on;
+ tc.orig = op->ors_filter;
+ tc.list = NULL;
+ tc.step = 0;
+ fbv = op->ors_filterstr;
+
+ op->o_callback = &cb;
+
+ if ( fr || !fl ) {
+ op->o_bd = &ov->db;
+ tc.step |= RMT_SIDE;
+ if ( fl ) {
+ tc.step |= USE_LIST;
+ op->ors_filter = fr;
+ filter2bv_x( op, fr, &op->ors_filterstr );
+ }
+ rc = ov->db.bd_info->bi_op_search(op, rs);
+ op->o_bd = tc.db;
+ if ( fl ) {
+ op->o_tmpfree( op->ors_filterstr.bv_val, op->o_tmpmemctx );
+ }
+ }
+ if ( fl && !rc ) {
+ tc.step |= LCL_SIDE;
+ op->ors_filter = fl;
+ filter2bv_x( op, fl, &op->ors_filterstr );
+ rc = overlay_op_walk( op, rs, op_search, on->on_info, on->on_next );
+ op->o_tmpfree( op->ors_filterstr.bv_val, op->o_tmpmemctx );
+ }
+ op->ors_filterstr = fbv;
+ op->ors_filter = tc.orig;
+ op->o_callback = cb.sc_next;
+ /* Send out anything remaining on the list and finish */
+ if ( tc.step & USE_LIST ) {
+ if ( tc.list ) {
+ Avlnode *av;
+
+ av = tavl_end( tc.list, TAVL_DIR_LEFT );
+ while ( av ) {
+ rs->sr_entry = av->avl_data;
+ rc = test_filter( op, rs->sr_entry, op->ors_filter );
+ if ( rc == LDAP_COMPARE_TRUE ) {
+ rs->sr_flags = REP_ENTRY_MUSTBEFREED;
+ rc = send_search_entry( op, rs );
+ if ( rc ) break;
+ } else {
+ entry_free( rs->sr_entry );
+ }
+ av = tavl_next( av, TAVL_DIR_RIGHT );
+ }
+ tavl_free( tc.list, NULL );
+ rs->sr_entry = NULL;
+ }
+ send_ldap_result( op, rs );
+ }
- op->o_bd->be_private = ov->private;
- rc = ov->info->bi_op_search(&nop, rs);
- op->o_bd->be_private = private;
+ /* Free in reverse order */
+ if ( fl )
+ trans_filter_free( op, fl );
+ if ( fr )
+ trans_filter_free( op, fr );
- return(rs->sr_err);
+ return rc;
}
static int translucent_bind(Operation *op, SlapReply *rs) {
slap_overinst *on = (slap_overinst *) op->o_bd->bd_info;
- overlay_stack *ov = on->on_bi.bi_private;
- void *private = op->o_bd->be_private;
- int rc = 0;
+ translucent_info *ov = on->on_bi.bi_private;
+ BackendDB *db;
+ int rc;
Debug(LDAP_DEBUG_TRACE, "translucent_bind: <%s> method %d\n",
op->o_req_dn.bv_val, op->orb_method, 0);
- op->o_bd->be_private = ov->private;
- rc = ov->info->bi_op_bind(op, rs);
- op->o_bd->be_private = private;
-
- return(rc);
+ if(ov->defer_db_open) {
+ send_ldap_error(op, rs, LDAP_UNAVAILABLE,
+ "remote DB not available");
+ return(rs->sr_err);
+ }
+ db = op->o_bd;
+ op->o_bd = &ov->db;
+ rc = ov->db.bd_info->bi_op_bind(op, rs);
+ op->o_bd = db;
+ return rc;
}
/*
static int translucent_connection_destroy(BackendDB *be, Connection *conn) {
slap_overinst *on = (slap_overinst *) be->bd_info;
- overlay_stack *ov = on->on_bi.bi_private;
- void *private = be->be_private;
+ translucent_info *ov = on->on_bi.bi_private;
int rc = 0;
Debug(LDAP_DEBUG_TRACE, "translucent_connection_destroy\n", 0, 0, 0);
- be->be_private = ov->private;
- rc = ov->info->bi_connection_destroy(be, conn);
- be->be_private = private;
+ rc = ov->db.bd_info->bi_connection_destroy(&ov->db, conn);
return(rc);
}
)
{
slap_overinst *on = (slap_overinst *) be->bd_info;
- overlay_stack *ov = on->on_bi.bi_private;
- void *private = be->be_private;
- void *be_cf_ocs = be->be_cf_ocs;
- int rc;
+ translucent_info *ov = on->on_bi.bi_private;
- /* "this should never happen" */
- if(!ov->info) {
- fprintf(stderr, "fatal: captive backend not initialized");
- return(1);
- }
+ Debug(LDAP_DEBUG_TRACE, "==> translucent_db_config: %s\n",
+ argc ? argv[0] : "", 0, 0);
- be->be_private = ov->private;
- be->be_cf_ocs = ov->info->bi_cf_ocs;
- rc = ov->info->bi_db_config ? ov->info->bi_db_config(be, fname, lineno, argc, argv) : 0;
- be->be_private = private;
- be->be_cf_ocs = be_cf_ocs;
-
- /* pass okay or error up, SLAP_CONF_UNKNOWN might be ours */
- if(rc == 0 || rc == 1) return(rc);
-
- rc = 0;
- if(!strcasecmp(*argv, "translucent_strict")) {
- ov->config->strict++;
- } else if(!strcasecmp(*argv, "translucent_no_add")) {
- ov->config->no_add++;
- } else if(!strcasecmp(*argv, "translucent_no_glue")) {
- ov->config->glue++;
- } else if(!strcasecmp(*argv, "translucent_debug")) {
- if(argc == 1) {
- ov->config->debug = 0xFFFF;
- rc = 0;
- } else if(argc == 2) {
- if ( lutil_atoi( &ov->config->debug, argv[1]) != 0 ) {
- fprintf(stderr, "%s: line %d: unable to parse debug \"%s\"\n",
- fname, lineno, argv[1]);
- return 1;
- }
- rc = 0;
- } else {
- fprintf(stderr, "%s: line %d: too many arguments (%d) to debug\n",
- fname, lineno, argc);
- rc = 1;
- }
- } else {
- fprintf(stderr, "%s: line %d: unknown keyword %s\n",
- fname, lineno, *argv);
- rc = SLAP_CONF_UNKNOWN;
- }
- return(rc);
+ /* Something for the captive database? */
+ if ( ov->db.bd_info && ov->db.bd_info->bi_db_config )
+ return ov->db.bd_info->bi_db_config( &ov->db, fname, lineno,
+ argc, argv );
+ return SLAP_CONF_UNKNOWN;
}
/*
**
*/
-static int translucent_db_init(BackendDB *be) {
+static int translucent_db_init(BackendDB *be, ConfigReply *cr) {
slap_overinst *on = (slap_overinst *) be->bd_info;
- void *private = be->be_private;
- overlay_stack *ov;
- int rc;
-
- Debug(LDAP_DEBUG_TRACE, "==> translucent_init\n", 0, 0, 0);
+ translucent_info *ov;
- ov = ch_calloc(1, sizeof(overlay_stack));
- ov->config = ch_calloc(1, sizeof(translucent_configuration));
- ov->info = backend_info("ldap");
+ Debug(LDAP_DEBUG_TRACE, "==> translucent_db_init\n", 0, 0, 0);
- if(!ov->info) {
- Debug(LDAP_DEBUG_ANY, "translucent: backend_info failed!\n", 0, 0, 0);
- return(1);
+ ov = ch_calloc(1, sizeof(translucent_info));
+ on->on_bi.bi_private = ov;
+ ov->db = *be;
+ ov->db.be_private = NULL;
+ ov->db.be_pcl_mutexp = &ov->db.be_pcl_mutex;
+ ov->defer_db_open = 1;
+
+ if ( !backend_db_init( "ldap", &ov->db, -1, NULL )) {
+ Debug( LDAP_DEBUG_CONFIG, "translucent: unable to open captive back-ldap\n", 0, 0, 0);
+ return 1;
}
-
- /* forcibly disable schema checking on the local backend */
SLAP_DBFLAGS(be) |= SLAP_DBFLAG_NO_SCHEMA_CHECK;
+ SLAP_DBFLAGS(be) |= SLAP_DBFLAG_NOLASTMOD;
- be->be_private = NULL;
- rc = ov->info->bi_db_init ? ov->info->bi_db_init(be) : 0;
-
- if(rc) Debug(LDAP_DEBUG_TRACE,
- "translucent: bi_db_init() returned error %d\n", rc, 0, 0);
-
- ov->private = be->be_private;
- be->be_private = private;
- on->on_bi.bi_private = ov;
- return(rc);
+ return 0;
}
/*
**
*/
-static int translucent_db_open(BackendDB *be) {
+static int translucent_db_open(BackendDB *be, ConfigReply *cr) {
slap_overinst *on = (slap_overinst *) be->bd_info;
- overlay_stack *ov = on->on_bi.bi_private;
- void *private = be->be_private;
+ translucent_info *ov = on->on_bi.bi_private;
int rc;
- /* "should never happen" */
- if(!ov->info) {
- Debug(LDAP_DEBUG_ANY, "translucent_open() called with bad ov->info\n", 0, 0, 0);
- return(LDAP_OTHER);
- }
+ Debug(LDAP_DEBUG_TRACE, "==> translucent_db_open\n", 0, 0, 0);
+
+ /* need to inherit something from the original database... */
+ ov->db.be_def_limit = be->be_def_limit;
+ ov->db.be_limits = be->be_limits;
+ ov->db.be_acl = be->be_acl;
+ ov->db.be_dfltaccess = be->be_dfltaccess;
- Debug(LDAP_DEBUG_TRACE, "translucent_open\n", 0, 0, 0);
+ if ( ov->defer_db_open )
+ return 0;
- be->be_private = ov->private;
- rc = ov->info->bi_db_open ? ov->info->bi_db_open(be) : 0;
- be->be_private = private;
+ rc = backend_startup_one( &ov->db, NULL );
if(rc) Debug(LDAP_DEBUG_TRACE,
"translucent: bi_db_open() returned error %d\n", rc, 0, 0);
/*
** translucent_db_close()
-** if the captive backend has a close() method, call it;
-** free any config data;
+** if the captive backend has a close() method, call it
**
*/
-static int translucent_db_close(BackendDB *be) {
+static int
+translucent_db_close( BackendDB *be, ConfigReply *cr )
+{
slap_overinst *on = (slap_overinst *) be->bd_info;
- overlay_stack *ov = on->on_bi.bi_private;
+ translucent_info *ov = on->on_bi.bi_private;
int rc = 0;
- if ( ov ) {
- void *private = be->be_private;
+ Debug(LDAP_DEBUG_TRACE, "==> translucent_db_close\n", 0, 0, 0);
- be->be_private = ov->private;
- rc = (ov->info && ov->info->bi_db_close) ? ov->info->bi_db_close(be) : 0;
- be->be_private = private;
- if(ov->config) ch_free(ov->config);
- ov->config = NULL;
+ if ( ov && ov->db.bd_info && ov->db.bd_info->bi_db_close ) {
+ rc = ov->db.bd_info->bi_db_close(&ov->db, NULL);
}
return(rc);
/*
** translucent_db_destroy()
-** if the captive backend has a db_destroy() method, call it
+** if the captive backend has a db_destroy() method, call it;
+** free any config data
**
*/
-static int translucent_db_destroy(BackendDB *be) {
+static int
+translucent_db_destroy( BackendDB *be, ConfigReply *cr )
+{
slap_overinst *on = (slap_overinst *) be->bd_info;
- overlay_stack *ov = on->on_bi.bi_private;
+ translucent_info *ov = on->on_bi.bi_private;
int rc = 0;
+ Debug(LDAP_DEBUG_TRACE, "==> translucent_db_destroy\n", 0, 0, 0);
+
if ( ov ) {
- void *private = be->be_private;
+ if ( ov->remote )
+ anlist_free( ov->remote, 1, NULL );
+ if ( ov->local )
+ anlist_free( ov->local, 1, NULL );
+ if ( ov->db.be_private != NULL ) {
+ backend_stopdown_one( &ov->db );
+ }
- be->be_private = ov->private;
- rc = (ov->info && ov->info->bi_db_destroy) ? ov->info->bi_db_destroy(be) : 0;
- be->be_private = private;
ch_free(ov);
on->on_bi.bi_private = NULL;
}
int translucent_initialize() {
+ int rc;
+
+ Debug(LDAP_DEBUG_TRACE, "==> translucent_initialize\n", 0, 0, 0);
+
translucent.on_bi.bi_type = "translucent";
translucent.on_bi.bi_db_init = translucent_db_init;
translucent.on_bi.bi_db_config = translucent_db_config;
translucent.on_bi.bi_op_compare = translucent_compare;
translucent.on_bi.bi_connection_destroy = translucent_connection_destroy;
+ translucent.on_bi.bi_cf_ocs = translucentocs;
+ rc = config_register_schema ( translucentcfg, translucentocs );
+ if ( rc ) return rc;
+
return(overlay_register(&translucent));
}
#endif
#endif /* SLAPD_OVER_TRANSLUCENT */
-
projects / openldap / blobdiff