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samba-mirror/source4/ldap_server/ldap_backend.c
Garming Sam 657e31450c schema: Remove unnecessary schema reload code
Signed-off-by: Garming Sam <garming@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
2016-07-08 10:01:20 +02:00

1277 lines
35 KiB
C

/*
Unix SMB/CIFS implementation.
LDAP server
Copyright (C) Stefan Metzmacher 2004
Copyright (C) Matthias Dieter Wallnöfer 2009
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#include "includes.h"
#include "ldap_server/ldap_server.h"
#include "../lib/util/dlinklist.h"
#include "auth/credentials/credentials.h"
#include "auth/gensec/gensec.h"
#include "auth/gensec/gensec_internal.h" /* TODO: remove this */
#include "param/param.h"
#include "smbd/service_stream.h"
#include "dsdb/samdb/samdb.h"
#include <ldb_errors.h>
#include <ldb_module.h>
#include "ldb_wrap.h"
static int map_ldb_error(TALLOC_CTX *mem_ctx, int ldb_err,
const char *add_err_string, const char **errstring)
{
WERROR err;
/* Certain LDB modules need to return very special WERROR codes. Proof
* for them here and if they exist skip the rest of the mapping. */
if (add_err_string != NULL) {
char *endptr;
strtol(add_err_string, &endptr, 16);
if (endptr != add_err_string) {
*errstring = add_err_string;
return ldb_err;
}
}
/* Otherwise we calculate here a generic, but appropriate WERROR. */
switch (ldb_err) {
case LDB_SUCCESS:
err = WERR_OK;
break;
case LDB_ERR_OPERATIONS_ERROR:
err = WERR_DS_OPERATIONS_ERROR;
break;
case LDB_ERR_PROTOCOL_ERROR:
err = WERR_DS_PROTOCOL_ERROR;
break;
case LDB_ERR_TIME_LIMIT_EXCEEDED:
err = WERR_DS_TIMELIMIT_EXCEEDED;
break;
case LDB_ERR_SIZE_LIMIT_EXCEEDED:
err = WERR_DS_SIZELIMIT_EXCEEDED;
break;
case LDB_ERR_COMPARE_FALSE:
err = WERR_DS_COMPARE_FALSE;
break;
case LDB_ERR_COMPARE_TRUE:
err = WERR_DS_COMPARE_TRUE;
break;
case LDB_ERR_AUTH_METHOD_NOT_SUPPORTED:
err = WERR_DS_AUTH_METHOD_NOT_SUPPORTED;
break;
case LDB_ERR_STRONG_AUTH_REQUIRED:
err = WERR_DS_STRONG_AUTH_REQUIRED;
break;
case LDB_ERR_REFERRAL:
err = WERR_DS_REFERRAL;
break;
case LDB_ERR_ADMIN_LIMIT_EXCEEDED:
err = WERR_DS_ADMIN_LIMIT_EXCEEDED;
break;
case LDB_ERR_UNSUPPORTED_CRITICAL_EXTENSION:
err = WERR_DS_UNAVAILABLE_CRIT_EXTENSION;
break;
case LDB_ERR_CONFIDENTIALITY_REQUIRED:
err = WERR_DS_CONFIDENTIALITY_REQUIRED;
break;
case LDB_ERR_SASL_BIND_IN_PROGRESS:
err = WERR_DS_BUSY;
break;
case LDB_ERR_NO_SUCH_ATTRIBUTE:
err = WERR_DS_NO_ATTRIBUTE_OR_VALUE;
break;
case LDB_ERR_UNDEFINED_ATTRIBUTE_TYPE:
err = WERR_DS_ATTRIBUTE_TYPE_UNDEFINED;
break;
case LDB_ERR_INAPPROPRIATE_MATCHING:
err = WERR_DS_INAPPROPRIATE_MATCHING;
break;
case LDB_ERR_CONSTRAINT_VIOLATION:
err = WERR_DS_CONSTRAINT_VIOLATION;
break;
case LDB_ERR_ATTRIBUTE_OR_VALUE_EXISTS:
err = WERR_DS_ATTRIBUTE_OR_VALUE_EXISTS;
break;
case LDB_ERR_INVALID_ATTRIBUTE_SYNTAX:
err = WERR_DS_INVALID_ATTRIBUTE_SYNTAX;
break;
case LDB_ERR_NO_SUCH_OBJECT:
err = WERR_DS_NO_SUCH_OBJECT;
break;
case LDB_ERR_ALIAS_PROBLEM:
err = WERR_DS_ALIAS_PROBLEM;
break;
case LDB_ERR_INVALID_DN_SYNTAX:
err = WERR_DS_INVALID_DN_SYNTAX;
break;
case LDB_ERR_ALIAS_DEREFERENCING_PROBLEM:
err = WERR_DS_ALIAS_DEREF_PROBLEM;
break;
case LDB_ERR_INAPPROPRIATE_AUTHENTICATION:
err = WERR_DS_INAPPROPRIATE_AUTH;
break;
case LDB_ERR_INVALID_CREDENTIALS:
err = WERR_ACCESS_DENIED;
break;
case LDB_ERR_INSUFFICIENT_ACCESS_RIGHTS:
err = WERR_DS_INSUFF_ACCESS_RIGHTS;
break;
case LDB_ERR_BUSY:
err = WERR_DS_BUSY;
break;
case LDB_ERR_UNAVAILABLE:
err = WERR_DS_UNAVAILABLE;
break;
case LDB_ERR_UNWILLING_TO_PERFORM:
err = WERR_DS_UNWILLING_TO_PERFORM;
break;
case LDB_ERR_LOOP_DETECT:
err = WERR_DS_LOOP_DETECT;
break;
case LDB_ERR_NAMING_VIOLATION:
err = WERR_DS_NAMING_VIOLATION;
break;
case LDB_ERR_OBJECT_CLASS_VIOLATION:
err = WERR_DS_OBJ_CLASS_VIOLATION;
break;
case LDB_ERR_NOT_ALLOWED_ON_NON_LEAF:
err = WERR_DS_CANT_ON_NON_LEAF;
break;
case LDB_ERR_NOT_ALLOWED_ON_RDN:
err = WERR_DS_CANT_ON_RDN;
break;
case LDB_ERR_ENTRY_ALREADY_EXISTS:
err = WERR_DS_OBJ_STRING_NAME_EXISTS;
break;
case LDB_ERR_OBJECT_CLASS_MODS_PROHIBITED:
err = WERR_DS_CANT_MOD_OBJ_CLASS;
break;
case LDB_ERR_AFFECTS_MULTIPLE_DSAS:
err = WERR_DS_AFFECTS_MULTIPLE_DSAS;
break;
default:
err = WERR_DS_GENERIC_ERROR;
break;
}
*errstring = talloc_asprintf(mem_ctx, "%08X: %s", W_ERROR_V(err),
add_err_string != NULL ? add_err_string : ldb_strerror(ldb_err));
/* result is 1:1 for now */
return ldb_err;
}
/*
connect to the sam database
*/
NTSTATUS ldapsrv_backend_Init(struct ldapsrv_connection *conn)
{
conn->ldb = samdb_connect(conn,
conn->connection->event.ctx,
conn->lp_ctx,
conn->session_info,
conn->global_catalog ? LDB_FLG_RDONLY : 0);
if (conn->ldb == NULL) {
return NT_STATUS_INTERNAL_DB_CORRUPTION;
}
if (conn->server_credentials) {
char **sasl_mechs = NULL;
const struct gensec_security_ops * const *backends = gensec_security_all();
const struct gensec_security_ops **ops
= gensec_use_kerberos_mechs(conn, backends, conn->server_credentials);
unsigned int i, j = 0;
for (i = 0; ops && ops[i]; i++) {
if (!lpcfg_parm_bool(conn->lp_ctx, NULL, "gensec", ops[i]->name, ops[i]->enabled))
continue;
if (ops[i]->sasl_name && ops[i]->server_start) {
char *sasl_name = talloc_strdup(conn, ops[i]->sasl_name);
if (!sasl_name) {
return NT_STATUS_NO_MEMORY;
}
sasl_mechs = talloc_realloc(conn, sasl_mechs, char *, j + 2);
if (!sasl_mechs) {
return NT_STATUS_NO_MEMORY;
}
sasl_mechs[j] = sasl_name;
talloc_steal(sasl_mechs, sasl_name);
sasl_mechs[j+1] = NULL;
j++;
}
}
talloc_unlink(conn, ops);
/* ldb can have a different lifetime to conn, so we
need to ensure that sasl_mechs lives as long as the
ldb does */
talloc_steal(conn->ldb, sasl_mechs);
ldb_set_opaque(conn->ldb, "supportedSASLMechanisms", sasl_mechs);
}
ldb_set_opaque(conn->ldb, "remoteAddress",
conn->connection->remote_address);
return NT_STATUS_OK;
}
struct ldapsrv_reply *ldapsrv_init_reply(struct ldapsrv_call *call, uint8_t type)
{
struct ldapsrv_reply *reply;
reply = talloc(call, struct ldapsrv_reply);
if (!reply) {
return NULL;
}
reply->msg = talloc(reply, struct ldap_message);
if (reply->msg == NULL) {
talloc_free(reply);
return NULL;
}
reply->msg->messageid = call->request->messageid;
reply->msg->type = type;
reply->msg->controls = NULL;
return reply;
}
void ldapsrv_queue_reply(struct ldapsrv_call *call, struct ldapsrv_reply *reply)
{
DLIST_ADD_END(call->replies, reply);
}
static NTSTATUS ldapsrv_unwilling(struct ldapsrv_call *call, int error)
{
struct ldapsrv_reply *reply;
struct ldap_ExtendedResponse *r;
DEBUG(10,("Unwilling type[%d] id[%d]\n", call->request->type, call->request->messageid));
reply = ldapsrv_init_reply(call, LDAP_TAG_ExtendedResponse);
if (!reply) {
return NT_STATUS_NO_MEMORY;
}
r = &reply->msg->r.ExtendedResponse;
r->response.resultcode = error;
r->response.dn = NULL;
r->response.errormessage = NULL;
r->response.referral = NULL;
r->oid = NULL;
r->value = NULL;
ldapsrv_queue_reply(call, reply);
return NT_STATUS_OK;
}
static int ldapsrv_add_with_controls(struct ldapsrv_call *call,
const struct ldb_message *message,
struct ldb_control **controls,
struct ldb_result *res)
{
struct ldb_context *ldb = call->conn->ldb;
struct ldb_request *req;
int ret;
ret = ldb_msg_sanity_check(ldb, message);
if (ret != LDB_SUCCESS) {
return ret;
}
ret = ldb_build_add_req(&req, ldb, ldb,
message,
controls,
res,
ldb_modify_default_callback,
NULL);
if (ret != LDB_SUCCESS) return ret;
if (call->conn->global_catalog) {
return ldb_error(ldb, LDB_ERR_UNWILLING_TO_PERFORM, "modify forbidden on global catalog port");
}
ldb_request_add_control(req, DSDB_CONTROL_NO_GLOBAL_CATALOG, false, NULL);
ret = ldb_transaction_start(ldb);
if (ret != LDB_SUCCESS) {
return ret;
}
if (!call->conn->is_privileged) {
ldb_req_mark_untrusted(req);
}
LDB_REQ_SET_LOCATION(req);
ret = ldb_request(ldb, req);
if (ret == LDB_SUCCESS) {
ret = ldb_wait(req->handle, LDB_WAIT_ALL);
}
if (ret == LDB_SUCCESS) {
ret = ldb_transaction_commit(ldb);
}
else {
ldb_transaction_cancel(ldb);
}
talloc_free(req);
return ret;
}
/* create and execute a modify request */
static int ldapsrv_mod_with_controls(struct ldapsrv_call *call,
const struct ldb_message *message,
struct ldb_control **controls,
struct ldb_result *res)
{
struct ldb_context *ldb = call->conn->ldb;
struct ldb_request *req;
int ret;
ret = ldb_msg_sanity_check(ldb, message);
if (ret != LDB_SUCCESS) {
return ret;
}
ret = ldb_build_mod_req(&req, ldb, ldb,
message,
controls,
res,
ldb_modify_default_callback,
NULL);
if (ret != LDB_SUCCESS) {
return ret;
}
if (call->conn->global_catalog) {
return ldb_error(ldb, LDB_ERR_UNWILLING_TO_PERFORM, "modify forbidden on global catalog port");
}
ldb_request_add_control(req, DSDB_CONTROL_NO_GLOBAL_CATALOG, false, NULL);
ret = ldb_transaction_start(ldb);
if (ret != LDB_SUCCESS) {
return ret;
}
if (!call->conn->is_privileged) {
ldb_req_mark_untrusted(req);
}
LDB_REQ_SET_LOCATION(req);
ret = ldb_request(ldb, req);
if (ret == LDB_SUCCESS) {
ret = ldb_wait(req->handle, LDB_WAIT_ALL);
}
if (ret == LDB_SUCCESS) {
ret = ldb_transaction_commit(ldb);
}
else {
ldb_transaction_cancel(ldb);
}
talloc_free(req);
return ret;
}
/* create and execute a delete request */
static int ldapsrv_del_with_controls(struct ldapsrv_call *call,
struct ldb_dn *dn,
struct ldb_control **controls,
struct ldb_result *res)
{
struct ldb_context *ldb = call->conn->ldb;
struct ldb_request *req;
int ret;
ret = ldb_build_del_req(&req, ldb, ldb,
dn,
controls,
res,
ldb_modify_default_callback,
NULL);
if (ret != LDB_SUCCESS) return ret;
if (call->conn->global_catalog) {
return ldb_error(ldb, LDB_ERR_UNWILLING_TO_PERFORM, "modify forbidden on global catalog port");
}
ldb_request_add_control(req, DSDB_CONTROL_NO_GLOBAL_CATALOG, false, NULL);
ret = ldb_transaction_start(ldb);
if (ret != LDB_SUCCESS) {
return ret;
}
if (!call->conn->is_privileged) {
ldb_req_mark_untrusted(req);
}
LDB_REQ_SET_LOCATION(req);
ret = ldb_request(ldb, req);
if (ret == LDB_SUCCESS) {
ret = ldb_wait(req->handle, LDB_WAIT_ALL);
}
if (ret == LDB_SUCCESS) {
ret = ldb_transaction_commit(ldb);
}
else {
ldb_transaction_cancel(ldb);
}
talloc_free(req);
return ret;
}
static int ldapsrv_rename_with_controls(struct ldapsrv_call *call,
struct ldb_dn *olddn,
struct ldb_dn *newdn,
struct ldb_control **controls,
struct ldb_result *res)
{
struct ldb_context *ldb = call->conn->ldb;
struct ldb_request *req;
int ret;
ret = ldb_build_rename_req(&req, ldb, ldb,
olddn,
newdn,
controls,
res,
ldb_modify_default_callback,
NULL);
if (ret != LDB_SUCCESS) return ret;
if (call->conn->global_catalog) {
return ldb_error(ldb, LDB_ERR_UNWILLING_TO_PERFORM, "modify forbidden on global catalog port");
}
ldb_request_add_control(req, DSDB_CONTROL_NO_GLOBAL_CATALOG, false, NULL);
ret = ldb_transaction_start(ldb);
if (ret != LDB_SUCCESS) {
return ret;
}
if (!call->conn->is_privileged) {
ldb_req_mark_untrusted(req);
}
LDB_REQ_SET_LOCATION(req);
ret = ldb_request(ldb, req);
if (ret == LDB_SUCCESS) {
ret = ldb_wait(req->handle, LDB_WAIT_ALL);
}
if (ret == LDB_SUCCESS) {
ret = ldb_transaction_commit(ldb);
}
else {
ldb_transaction_cancel(ldb);
}
talloc_free(req);
return ret;
}
static NTSTATUS ldapsrv_SearchRequest(struct ldapsrv_call *call)
{
struct ldap_SearchRequest *req = &call->request->r.SearchRequest;
struct ldap_SearchResEntry *ent;
struct ldap_Result *done;
struct ldapsrv_reply *ent_r, *done_r;
TALLOC_CTX *local_ctx;
struct ldb_context *samdb = talloc_get_type(call->conn->ldb, struct ldb_context);
struct ldb_dn *basedn;
struct ldb_result *res = NULL;
struct ldb_request *lreq;
struct ldb_control *search_control;
struct ldb_search_options_control *search_options;
struct ldb_control *extended_dn_control;
struct ldb_extended_dn_control *extended_dn_decoded = NULL;
struct ldb_control *notification_control = NULL;
enum ldb_scope scope = LDB_SCOPE_DEFAULT;
const char **attrs = NULL;
const char *scope_str, *errstr = NULL;
int success_limit = 1;
int result = -1;
int ldb_ret = -1;
unsigned int i, j;
int extended_type = 1;
DEBUG(10, ("SearchRequest"));
DEBUGADD(10, (" basedn: %s", req->basedn));
DEBUGADD(10, (" filter: %s\n", ldb_filter_from_tree(call, req->tree)));
local_ctx = talloc_new(call);
NT_STATUS_HAVE_NO_MEMORY(local_ctx);
basedn = ldb_dn_new(local_ctx, samdb, req->basedn);
NT_STATUS_HAVE_NO_MEMORY(basedn);
DEBUG(10, ("SearchRequest: basedn: [%s]\n", req->basedn));
DEBUG(10, ("SearchRequest: filter: [%s]\n", ldb_filter_from_tree(call, req->tree)));
switch (req->scope) {
case LDAP_SEARCH_SCOPE_BASE:
scope_str = "BASE";
scope = LDB_SCOPE_BASE;
success_limit = 0;
break;
case LDAP_SEARCH_SCOPE_SINGLE:
scope_str = "ONE";
scope = LDB_SCOPE_ONELEVEL;
success_limit = 0;
break;
case LDAP_SEARCH_SCOPE_SUB:
scope_str = "SUB";
scope = LDB_SCOPE_SUBTREE;
success_limit = 0;
break;
default:
result = LDAP_PROTOCOL_ERROR;
map_ldb_error(local_ctx, LDB_ERR_PROTOCOL_ERROR, NULL,
&errstr);
errstr = talloc_asprintf(local_ctx,
"%s. Invalid scope", errstr);
goto reply;
}
DEBUG(10,("SearchRequest: scope: [%s]\n", scope_str));
if (req->num_attributes >= 1) {
attrs = talloc_array(local_ctx, const char *, req->num_attributes+1);
NT_STATUS_HAVE_NO_MEMORY(attrs);
for (i=0; i < req->num_attributes; i++) {
DEBUG(10,("SearchRequest: attrs: [%s]\n",req->attributes[i]));
attrs[i] = req->attributes[i];
}
attrs[i] = NULL;
}
DEBUG(5,("ldb_request %s dn=%s filter=%s\n",
scope_str, req->basedn, ldb_filter_from_tree(call, req->tree)));
res = talloc_zero(local_ctx, struct ldb_result);
NT_STATUS_HAVE_NO_MEMORY(res);
ldb_ret = ldb_build_search_req_ex(&lreq, samdb, local_ctx,
basedn, scope,
req->tree, attrs,
call->request->controls,
res, ldb_search_default_callback,
NULL);
if (ldb_ret != LDB_SUCCESS) {
goto reply;
}
if (call->conn->global_catalog) {
search_control = ldb_request_get_control(lreq, LDB_CONTROL_SEARCH_OPTIONS_OID);
search_options = NULL;
if (search_control) {
search_options = talloc_get_type(search_control->data, struct ldb_search_options_control);
search_options->search_options |= LDB_SEARCH_OPTION_PHANTOM_ROOT;
} else {
search_options = talloc(lreq, struct ldb_search_options_control);
NT_STATUS_HAVE_NO_MEMORY(search_options);
search_options->search_options = LDB_SEARCH_OPTION_PHANTOM_ROOT;
ldb_request_add_control(lreq, LDB_CONTROL_SEARCH_OPTIONS_OID, false, search_options);
}
} else {
ldb_request_add_control(lreq, DSDB_CONTROL_NO_GLOBAL_CATALOG, false, NULL);
}
extended_dn_control = ldb_request_get_control(lreq, LDB_CONTROL_EXTENDED_DN_OID);
if (extended_dn_control) {
if (extended_dn_control->data) {
extended_dn_decoded = talloc_get_type(extended_dn_control->data, struct ldb_extended_dn_control);
extended_type = extended_dn_decoded->type;
} else {
extended_type = 0;
}
}
notification_control = ldb_request_get_control(lreq, LDB_CONTROL_NOTIFICATION_OID);
if (notification_control != NULL) {
const struct ldapsrv_call *pc = NULL;
size_t count = 0;
for (pc = call->conn->pending_calls; pc != NULL; pc = pc->next) {
count += 1;
}
if (count >= call->conn->limits.max_notifications) {
DEBUG(10,("SearchRequest: error MaxNotificationPerConn\n"));
result = map_ldb_error(local_ctx,
LDB_ERR_ADMIN_LIMIT_EXCEEDED,
"MaxNotificationPerConn reached",
&errstr);
goto reply;
}
/*
* For now we need to do periodic retries on our own.
* As the dsdb_notification module will return after each run.
*/
call->notification.busy = true;
}
ldb_set_timeout(samdb, lreq, req->timelimit);
if (!call->conn->is_privileged) {
ldb_req_mark_untrusted(lreq);
}
LDB_REQ_SET_LOCATION(lreq);
ldb_ret = ldb_request(samdb, lreq);
if (ldb_ret != LDB_SUCCESS) {
goto reply;
}
ldb_ret = ldb_wait(lreq->handle, LDB_WAIT_ALL);
if (ldb_ret == LDB_SUCCESS) {
for (i = 0; i < res->count; i++) {
ent_r = ldapsrv_init_reply(call, LDAP_TAG_SearchResultEntry);
NT_STATUS_HAVE_NO_MEMORY(ent_r);
/* Better to have the whole message kept here,
* than to find someone further up didn't put
* a value in the right spot in the talloc tree */
talloc_steal(ent_r, res->msgs[i]);
ent = &ent_r->msg->r.SearchResultEntry;
ent->dn = ldb_dn_get_extended_linearized(ent_r, res->msgs[i]->dn, extended_type);
ent->num_attributes = 0;
ent->attributes = NULL;
if (res->msgs[i]->num_elements == 0) {
goto queue_reply;
}
ent->num_attributes = res->msgs[i]->num_elements;
ent->attributes = talloc_array(ent_r, struct ldb_message_element, ent->num_attributes);
NT_STATUS_HAVE_NO_MEMORY(ent->attributes);
for (j=0; j < ent->num_attributes; j++) {
ent->attributes[j].name = res->msgs[i]->elements[j].name;
ent->attributes[j].num_values = 0;
ent->attributes[j].values = NULL;
if (req->attributesonly && (res->msgs[i]->elements[j].num_values == 0)) {
continue;
}
ent->attributes[j].num_values = res->msgs[i]->elements[j].num_values;
ent->attributes[j].values = res->msgs[i]->elements[j].values;
}
queue_reply:
ldapsrv_queue_reply(call, ent_r);
}
if (call->notification.busy) {
/* Move/Add it to the end */
DLIST_DEMOTE(call->conn->pending_calls, call);
call->notification.generation =
call->conn->service->notification.generation;
if (res->count != 0) {
call->notification.generation += 1;
ldapsrv_notification_retry_setup(call->conn->service,
true);
}
talloc_free(local_ctx);
return NT_STATUS_OK;
}
/* Send back referrals if they do exist (search operations) */
if (res->refs != NULL) {
char **ref;
struct ldap_SearchResRef *ent_ref;
for (ref = res->refs; *ref != NULL; ++ref) {
ent_r = ldapsrv_init_reply(call, LDAP_TAG_SearchResultReference);
NT_STATUS_HAVE_NO_MEMORY(ent_r);
/* Better to have the whole referrals kept here,
* than to find someone further up didn't put
* a value in the right spot in the talloc tree
*/
talloc_steal(ent_r, *ref);
ent_ref = &ent_r->msg->r.SearchResultReference;
ent_ref->referral = *ref;
ldapsrv_queue_reply(call, ent_r);
}
}
}
reply:
DLIST_REMOVE(call->conn->pending_calls, call);
call->notification.busy = false;
done_r = ldapsrv_init_reply(call, LDAP_TAG_SearchResultDone);
NT_STATUS_HAVE_NO_MEMORY(done_r);
done = &done_r->msg->r.SearchResultDone;
done->dn = NULL;
done->referral = NULL;
if (result != -1) {
} else if (ldb_ret == LDB_SUCCESS) {
if (res->count >= success_limit) {
DEBUG(10,("SearchRequest: results: [%d]\n", res->count));
result = LDAP_SUCCESS;
errstr = NULL;
}
if (res->controls) {
done_r->msg->controls = res->controls;
talloc_steal(done_r, res->controls);
}
} else {
DEBUG(10,("SearchRequest: error\n"));
result = map_ldb_error(local_ctx, ldb_ret, ldb_errstring(samdb),
&errstr);
}
done->resultcode = result;
done->errormessage = (errstr?talloc_strdup(done_r, errstr):NULL);
talloc_free(local_ctx);
ldapsrv_queue_reply(call, done_r);
return NT_STATUS_OK;
}
static NTSTATUS ldapsrv_ModifyRequest(struct ldapsrv_call *call)
{
struct ldap_ModifyRequest *req = &call->request->r.ModifyRequest;
struct ldap_Result *modify_result;
struct ldapsrv_reply *modify_reply;
TALLOC_CTX *local_ctx;
struct ldb_context *samdb = call->conn->ldb;
struct ldb_message *msg = NULL;
struct ldb_dn *dn;
const char *errstr = NULL;
int result = LDAP_SUCCESS;
int ldb_ret;
unsigned int i,j;
struct ldb_result *res = NULL;
DEBUG(10, ("ModifyRequest"));
DEBUGADD(10, (" dn: %s\n", req->dn));
local_ctx = talloc_named(call, 0, "ModifyRequest local memory context");
NT_STATUS_HAVE_NO_MEMORY(local_ctx);
dn = ldb_dn_new(local_ctx, samdb, req->dn);
NT_STATUS_HAVE_NO_MEMORY(dn);
DEBUG(10, ("ModifyRequest: dn: [%s]\n", req->dn));
msg = talloc(local_ctx, struct ldb_message);
NT_STATUS_HAVE_NO_MEMORY(msg);
msg->dn = dn;
msg->num_elements = 0;
msg->elements = NULL;
if (req->num_mods > 0) {
msg->num_elements = req->num_mods;
msg->elements = talloc_array(msg, struct ldb_message_element, req->num_mods);
NT_STATUS_HAVE_NO_MEMORY(msg->elements);
for (i=0; i < msg->num_elements; i++) {
msg->elements[i].name = discard_const_p(char, req->mods[i].attrib.name);
msg->elements[i].num_values = 0;
msg->elements[i].values = NULL;
switch (req->mods[i].type) {
default:
result = LDAP_PROTOCOL_ERROR;
map_ldb_error(local_ctx,
LDB_ERR_PROTOCOL_ERROR, NULL, &errstr);
errstr = talloc_asprintf(local_ctx,
"%s. Invalid LDAP_MODIFY_* type", errstr);
goto reply;
case LDAP_MODIFY_ADD:
msg->elements[i].flags = LDB_FLAG_MOD_ADD;
break;
case LDAP_MODIFY_DELETE:
msg->elements[i].flags = LDB_FLAG_MOD_DELETE;
break;
case LDAP_MODIFY_REPLACE:
msg->elements[i].flags = LDB_FLAG_MOD_REPLACE;
break;
}
msg->elements[i].num_values = req->mods[i].attrib.num_values;
if (msg->elements[i].num_values > 0) {
msg->elements[i].values = talloc_array(msg->elements, struct ldb_val,
msg->elements[i].num_values);
NT_STATUS_HAVE_NO_MEMORY(msg->elements[i].values);
for (j=0; j < msg->elements[i].num_values; j++) {
msg->elements[i].values[j].length = req->mods[i].attrib.values[j].length;
msg->elements[i].values[j].data = req->mods[i].attrib.values[j].data;
}
}
}
}
reply:
modify_reply = ldapsrv_init_reply(call, LDAP_TAG_ModifyResponse);
NT_STATUS_HAVE_NO_MEMORY(modify_reply);
if (result == LDAP_SUCCESS) {
res = talloc_zero(local_ctx, struct ldb_result);
NT_STATUS_HAVE_NO_MEMORY(res);
ldb_ret = ldapsrv_mod_with_controls(call, msg, call->request->controls, res);
result = map_ldb_error(local_ctx, ldb_ret, ldb_errstring(samdb),
&errstr);
}
modify_result = &modify_reply->msg->r.ModifyResponse;
modify_result->dn = NULL;
if ((res != NULL) && (res->refs != NULL)) {
modify_result->resultcode = map_ldb_error(local_ctx,
LDB_ERR_REFERRAL,
NULL, &errstr);
modify_result->errormessage = (errstr?talloc_strdup(modify_reply, errstr):NULL);
modify_result->referral = talloc_strdup(call, *res->refs);
} else {
modify_result->resultcode = result;
modify_result->errormessage = (errstr?talloc_strdup(modify_reply, errstr):NULL);
modify_result->referral = NULL;
}
talloc_free(local_ctx);
ldapsrv_queue_reply(call, modify_reply);
return NT_STATUS_OK;
}
static NTSTATUS ldapsrv_AddRequest(struct ldapsrv_call *call)
{
struct ldap_AddRequest *req = &call->request->r.AddRequest;
struct ldap_Result *add_result;
struct ldapsrv_reply *add_reply;
TALLOC_CTX *local_ctx;
struct ldb_context *samdb = call->conn->ldb;
struct ldb_message *msg = NULL;
struct ldb_dn *dn;
const char *errstr = NULL;
int result = LDAP_SUCCESS;
int ldb_ret;
unsigned int i,j;
struct ldb_result *res = NULL;
DEBUG(10, ("AddRequest"));
DEBUGADD(10, (" dn: %s\n", req->dn));
local_ctx = talloc_named(call, 0, "AddRequest local memory context");
NT_STATUS_HAVE_NO_MEMORY(local_ctx);
dn = ldb_dn_new(local_ctx, samdb, req->dn);
NT_STATUS_HAVE_NO_MEMORY(dn);
DEBUG(10, ("AddRequest: dn: [%s]\n", req->dn));
msg = talloc(local_ctx, struct ldb_message);
NT_STATUS_HAVE_NO_MEMORY(msg);
msg->dn = dn;
msg->num_elements = 0;
msg->elements = NULL;
if (req->num_attributes > 0) {
msg->num_elements = req->num_attributes;
msg->elements = talloc_array(msg, struct ldb_message_element, msg->num_elements);
NT_STATUS_HAVE_NO_MEMORY(msg->elements);
for (i=0; i < msg->num_elements; i++) {
msg->elements[i].name = discard_const_p(char, req->attributes[i].name);
msg->elements[i].flags = 0;
msg->elements[i].num_values = 0;
msg->elements[i].values = NULL;
if (req->attributes[i].num_values > 0) {
msg->elements[i].num_values = req->attributes[i].num_values;
msg->elements[i].values = talloc_array(msg->elements, struct ldb_val,
msg->elements[i].num_values);
NT_STATUS_HAVE_NO_MEMORY(msg->elements[i].values);
for (j=0; j < msg->elements[i].num_values; j++) {
msg->elements[i].values[j].length = req->attributes[i].values[j].length;
msg->elements[i].values[j].data = req->attributes[i].values[j].data;
}
}
}
}
add_reply = ldapsrv_init_reply(call, LDAP_TAG_AddResponse);
NT_STATUS_HAVE_NO_MEMORY(add_reply);
if (result == LDAP_SUCCESS) {
res = talloc_zero(local_ctx, struct ldb_result);
NT_STATUS_HAVE_NO_MEMORY(res);
ldb_ret = ldapsrv_add_with_controls(call, msg, call->request->controls, res);
result = map_ldb_error(local_ctx, ldb_ret, ldb_errstring(samdb),
&errstr);
}
add_result = &add_reply->msg->r.AddResponse;
add_result->dn = NULL;
if ((res != NULL) && (res->refs != NULL)) {
add_result->resultcode = map_ldb_error(local_ctx,
LDB_ERR_REFERRAL, NULL,
&errstr);
add_result->errormessage = (errstr?talloc_strdup(add_reply,errstr):NULL);
add_result->referral = talloc_strdup(call, *res->refs);
} else {
add_result->resultcode = result;
add_result->errormessage = (errstr?talloc_strdup(add_reply,errstr):NULL);
add_result->referral = NULL;
}
talloc_free(local_ctx);
ldapsrv_queue_reply(call, add_reply);
return NT_STATUS_OK;
}
static NTSTATUS ldapsrv_DelRequest(struct ldapsrv_call *call)
{
struct ldap_DelRequest *req = &call->request->r.DelRequest;
struct ldap_Result *del_result;
struct ldapsrv_reply *del_reply;
TALLOC_CTX *local_ctx;
struct ldb_context *samdb = call->conn->ldb;
struct ldb_dn *dn;
const char *errstr = NULL;
int result = LDAP_SUCCESS;
int ldb_ret;
struct ldb_result *res = NULL;
DEBUG(10, ("DelRequest"));
DEBUGADD(10, (" dn: %s\n", req->dn));
local_ctx = talloc_named(call, 0, "DelRequest local memory context");
NT_STATUS_HAVE_NO_MEMORY(local_ctx);
dn = ldb_dn_new(local_ctx, samdb, req->dn);
NT_STATUS_HAVE_NO_MEMORY(dn);
DEBUG(10, ("DelRequest: dn: [%s]\n", req->dn));
del_reply = ldapsrv_init_reply(call, LDAP_TAG_DelResponse);
NT_STATUS_HAVE_NO_MEMORY(del_reply);
if (result == LDAP_SUCCESS) {
res = talloc_zero(local_ctx, struct ldb_result);
NT_STATUS_HAVE_NO_MEMORY(res);
ldb_ret = ldapsrv_del_with_controls(call, dn, call->request->controls, res);
result = map_ldb_error(local_ctx, ldb_ret, ldb_errstring(samdb),
&errstr);
}
del_result = &del_reply->msg->r.DelResponse;
del_result->dn = NULL;
if ((res != NULL) && (res->refs != NULL)) {
del_result->resultcode = map_ldb_error(local_ctx,
LDB_ERR_REFERRAL, NULL,
&errstr);
del_result->errormessage = (errstr?talloc_strdup(del_reply,errstr):NULL);
del_result->referral = talloc_strdup(call, *res->refs);
} else {
del_result->resultcode = result;
del_result->errormessage = (errstr?talloc_strdup(del_reply,errstr):NULL);
del_result->referral = NULL;
}
talloc_free(local_ctx);
ldapsrv_queue_reply(call, del_reply);
return NT_STATUS_OK;
}
static NTSTATUS ldapsrv_ModifyDNRequest(struct ldapsrv_call *call)
{
struct ldap_ModifyDNRequest *req = &call->request->r.ModifyDNRequest;
struct ldap_Result *modifydn;
struct ldapsrv_reply *modifydn_r;
TALLOC_CTX *local_ctx;
struct ldb_context *samdb = call->conn->ldb;
struct ldb_dn *olddn, *newdn=NULL, *newrdn;
struct ldb_dn *parentdn = NULL;
const char *errstr = NULL;
int result = LDAP_SUCCESS;
int ldb_ret;
struct ldb_result *res = NULL;
DEBUG(10, ("ModifyDNRequest"));
DEBUGADD(10, (" dn: %s", req->dn));
DEBUGADD(10, (" newrdn: %s\n", req->newrdn));
local_ctx = talloc_named(call, 0, "ModifyDNRequest local memory context");
NT_STATUS_HAVE_NO_MEMORY(local_ctx);
olddn = ldb_dn_new(local_ctx, samdb, req->dn);
NT_STATUS_HAVE_NO_MEMORY(olddn);
newrdn = ldb_dn_new(local_ctx, samdb, req->newrdn);
NT_STATUS_HAVE_NO_MEMORY(newrdn);
DEBUG(10, ("ModifyDNRequest: olddn: [%s]\n", req->dn));
DEBUG(10, ("ModifyDNRequest: newrdn: [%s]\n", req->newrdn));
if (ldb_dn_get_comp_num(newrdn) == 0) {
result = LDAP_PROTOCOL_ERROR;
map_ldb_error(local_ctx, LDB_ERR_PROTOCOL_ERROR, NULL,
&errstr);
goto reply;
}
if (ldb_dn_get_comp_num(newrdn) > 1) {
result = LDAP_NAMING_VIOLATION;
map_ldb_error(local_ctx, LDB_ERR_NAMING_VIOLATION, NULL,
&errstr);
goto reply;
}
/* we can't handle the rename if we should not remove the old dn */
if (!req->deleteolddn) {
result = LDAP_UNWILLING_TO_PERFORM;
map_ldb_error(local_ctx, LDB_ERR_UNWILLING_TO_PERFORM, NULL,
&errstr);
errstr = talloc_asprintf(local_ctx,
"%s. Old RDN must be deleted", errstr);
goto reply;
}
if (req->newsuperior) {
DEBUG(10, ("ModifyDNRequest: newsuperior: [%s]\n", req->newsuperior));
parentdn = ldb_dn_new(local_ctx, samdb, req->newsuperior);
}
if (!parentdn) {
parentdn = ldb_dn_get_parent(local_ctx, olddn);
}
if (!parentdn) {
result = LDAP_NO_SUCH_OBJECT;
map_ldb_error(local_ctx, LDB_ERR_NO_SUCH_OBJECT, NULL, &errstr);
goto reply;
}
if ( ! ldb_dn_add_child(parentdn, newrdn)) {
result = LDAP_OTHER;
map_ldb_error(local_ctx, LDB_ERR_OTHER, NULL, &errstr);
goto reply;
}
newdn = parentdn;
reply:
modifydn_r = ldapsrv_init_reply(call, LDAP_TAG_ModifyDNResponse);
NT_STATUS_HAVE_NO_MEMORY(modifydn_r);
if (result == LDAP_SUCCESS) {
res = talloc_zero(local_ctx, struct ldb_result);
NT_STATUS_HAVE_NO_MEMORY(res);
ldb_ret = ldapsrv_rename_with_controls(call, olddn, newdn, call->request->controls, res);
result = map_ldb_error(local_ctx, ldb_ret, ldb_errstring(samdb),
&errstr);
}
modifydn = &modifydn_r->msg->r.ModifyDNResponse;
modifydn->dn = NULL;
if ((res != NULL) && (res->refs != NULL)) {
modifydn->resultcode = map_ldb_error(local_ctx,
LDB_ERR_REFERRAL, NULL,
&errstr);;
modifydn->errormessage = (errstr?talloc_strdup(modifydn_r,errstr):NULL);
modifydn->referral = talloc_strdup(call, *res->refs);
} else {
modifydn->resultcode = result;
modifydn->errormessage = (errstr?talloc_strdup(modifydn_r,errstr):NULL);
modifydn->referral = NULL;
}
talloc_free(local_ctx);
ldapsrv_queue_reply(call, modifydn_r);
return NT_STATUS_OK;
}
static NTSTATUS ldapsrv_CompareRequest(struct ldapsrv_call *call)
{
struct ldap_CompareRequest *req = &call->request->r.CompareRequest;
struct ldap_Result *compare;
struct ldapsrv_reply *compare_r;
TALLOC_CTX *local_ctx;
struct ldb_context *samdb = call->conn->ldb;
struct ldb_result *res = NULL;
struct ldb_dn *dn;
const char *attrs[1];
const char *errstr = NULL;
const char *filter = NULL;
int result = LDAP_SUCCESS;
int ldb_ret;
DEBUG(10, ("CompareRequest"));
DEBUGADD(10, (" dn: %s\n", req->dn));
local_ctx = talloc_named(call, 0, "CompareRequest local_memory_context");
NT_STATUS_HAVE_NO_MEMORY(local_ctx);
dn = ldb_dn_new(local_ctx, samdb, req->dn);
NT_STATUS_HAVE_NO_MEMORY(dn);
DEBUG(10, ("CompareRequest: dn: [%s]\n", req->dn));
filter = talloc_asprintf(local_ctx, "(%s=%*s)", req->attribute,
(int)req->value.length, req->value.data);
NT_STATUS_HAVE_NO_MEMORY(filter);
DEBUGADD(10, ("CompareRequest: attribute: [%s]\n", filter));
attrs[0] = NULL;
compare_r = ldapsrv_init_reply(call, LDAP_TAG_CompareResponse);
NT_STATUS_HAVE_NO_MEMORY(compare_r);
if (result == LDAP_SUCCESS) {
ldb_ret = ldb_search(samdb, local_ctx, &res,
dn, LDB_SCOPE_BASE, attrs, "%s", filter);
if (ldb_ret != LDB_SUCCESS) {
result = map_ldb_error(local_ctx, ldb_ret,
ldb_errstring(samdb), &errstr);
DEBUG(10,("CompareRequest: error: %s\n", errstr));
} else if (res->count == 0) {
DEBUG(10,("CompareRequest: doesn't matched\n"));
result = LDAP_COMPARE_FALSE;
errstr = NULL;
} else if (res->count == 1) {
DEBUG(10,("CompareRequest: matched\n"));
result = LDAP_COMPARE_TRUE;
errstr = NULL;
} else if (res->count > 1) {
result = LDAP_OTHER;
map_ldb_error(local_ctx, LDB_ERR_OTHER, NULL, &errstr);
errstr = talloc_asprintf(local_ctx,
"%s. Too many objects match!", errstr);
DEBUG(10,("CompareRequest: %d results: %s\n", res->count, errstr));
}
}
compare = &compare_r->msg->r.CompareResponse;
compare->dn = NULL;
compare->resultcode = result;
compare->errormessage = (errstr?talloc_strdup(compare_r,errstr):NULL);
compare->referral = NULL;
talloc_free(local_ctx);
ldapsrv_queue_reply(call, compare_r);
return NT_STATUS_OK;
}
static NTSTATUS ldapsrv_AbandonRequest(struct ldapsrv_call *call)
{
struct ldap_AbandonRequest *req = &call->request->r.AbandonRequest;
struct ldapsrv_call *c = NULL;
struct ldapsrv_call *n = NULL;
DEBUG(10, ("AbandonRequest\n"));
for (c = call->conn->pending_calls; c != NULL; c = n) {
n = c->next;
if (c->request->messageid != req->messageid) {
continue;
}
DLIST_REMOVE(call->conn->pending_calls, c);
TALLOC_FREE(c);
}
return NT_STATUS_OK;
}
NTSTATUS ldapsrv_do_call(struct ldapsrv_call *call)
{
unsigned int i;
struct ldap_message *msg = call->request;
NTSTATUS status;
/* Check for undecoded critical extensions */
for (i=0; msg->controls && msg->controls[i]; i++) {
if (!msg->controls_decoded[i] &&
msg->controls[i]->critical) {
DEBUG(3, ("ldapsrv_do_call: Critical extension %s is not known to this server\n",
msg->controls[i]->oid));
return ldapsrv_unwilling(call, LDAP_UNAVAILABLE_CRITICAL_EXTENSION);
}
}
switch(call->request->type) {
case LDAP_TAG_BindRequest:
return ldapsrv_BindRequest(call);
case LDAP_TAG_UnbindRequest:
return ldapsrv_UnbindRequest(call);
case LDAP_TAG_SearchRequest:
return ldapsrv_SearchRequest(call);
case LDAP_TAG_ModifyRequest:
status = ldapsrv_ModifyRequest(call);
break;
case LDAP_TAG_AddRequest:
status = ldapsrv_AddRequest(call);
break;
case LDAP_TAG_DelRequest:
status = ldapsrv_DelRequest(call);
break;
case LDAP_TAG_ModifyDNRequest:
status = ldapsrv_ModifyDNRequest(call);
break;
case LDAP_TAG_CompareRequest:
return ldapsrv_CompareRequest(call);
case LDAP_TAG_AbandonRequest:
return ldapsrv_AbandonRequest(call);
case LDAP_TAG_ExtendedRequest:
status = ldapsrv_ExtendedRequest(call);
break;
default:
return ldapsrv_unwilling(call, LDAP_PROTOCOL_ERROR);
}
if (NT_STATUS_IS_OK(status)) {
ldapsrv_notification_retry_setup(call->conn->service, true);
}
return status;
}