/*
Unix SMB/CIFS implementation.
+
LDAP server
+
+ Copyright (C) Andrew Tridgell 2005
Copyright (C) Volker Lendecke 2004
Copyright (C) Stefan Metzmacher 2004
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 2 of the License, or
+ 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,
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, write to the Free Software
- Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#include "includes.h"
-
+#include "lib/events/events.h"
+#include "auth/auth.h"
+#include "auth/credentials/credentials.h"
+#include "librpc/gen_ndr/ndr_samr.h"
+#include "lib/util/dlinklist.h"
+#include "libcli/util/asn_1.h"
+#include "ldap_server/ldap_server.h"
+#include "smbd/service_task.h"
+#include "smbd/service_stream.h"
+#include "smbd/service.h"
+#include "smbd/process_model.h"
+#include "lib/tls/tls.h"
+#include "lib/messaging/irpc.h"
+#include "lib/ldb/include/ldb.h"
+#include "lib/ldb/include/ldb_errors.h"
+#include "system/network.h"
+#include "lib/socket/netif.h"
+#include "dsdb/samdb/samdb.h"
/*
close the socket and shutdown a server_context
*/
-static void ldapsrv_terminate_connection(struct ldapsrv_connection *ldap_conn, const char *reason)
+void ldapsrv_terminate_connection(struct ldapsrv_connection *conn,
+ const char *reason)
{
- server_terminate_connection(ldap_conn->connection, reason);
+ stream_terminate_connection(conn->connection, reason);
}
/*
- add a socket address to the list of events, one event per port
+ handle packet errors
*/
-static void add_socket(struct server_service *service,
- const struct model_ops *model_ops,
- struct in_addr *ifip)
+static void ldapsrv_error_handler(void *private, NTSTATUS status)
{
- struct server_socket *srv_sock;
- uint16_t port = 389;
- char *ip_str = talloc_strdup(service, inet_ntoa(*ifip));
-
- srv_sock = service_setup_socket(service, model_ops, ip_str, &port);
-
- port = 3268;
- srv_sock = service_setup_socket(service, model_ops, ip_str, &port);
-
- talloc_free(ip_str);
+ struct ldapsrv_connection *conn = talloc_get_type(private,
+ struct ldapsrv_connection);
+ ldapsrv_terminate_connection(conn, nt_errstr(status));
}
-/****************************************************************************
- Open the socket communication.
-****************************************************************************/
-static void ldapsrv_init(struct server_service *service,
- const struct model_ops *model_ops)
-{
- struct ldapsrv_service *ldap_service;
- struct ldapsrv_partition *part;
-
- DEBUG(10,("ldapsrv_init\n"));
+/*
+ process a decoded ldap message
+*/
+static void ldapsrv_process_message(struct ldapsrv_connection *conn,
+ struct ldap_message *msg)
+{
+ struct ldapsrv_call *call;
+ NTSTATUS status;
+ DATA_BLOB blob;
- ldap_service = talloc_p(service, struct ldapsrv_service);
- if (!ldap_service) {
- DEBUG(0,("talloc_p(service, struct ldapsrv_service) failed\n"));
- return;
+ call = talloc(conn, struct ldapsrv_call);
+ if (!call) {
+ ldapsrv_terminate_connection(conn, "no memory");
+ return;
}
- ZERO_STRUCTP(ldap_service);
-
- part = talloc_p(ldap_service, struct ldapsrv_partition);
- if (!ldap_service) {
- DEBUG(0,("talloc_p(ldap_service, struct ldapsrv_partition) failed\n"));
+
+ call->request = talloc_steal(call, msg);
+ call->conn = conn;
+ call->replies = NULL;
+ call->send_callback = NULL;
+ call->send_private = NULL;
+
+ /* make the call */
+ status = ldapsrv_do_call(call);
+ if (!NT_STATUS_IS_OK(status)) {
+ talloc_free(call);
return;
}
- part->base_dn = ""; /* RootDSE */
- part->ops = ldapsrv_get_rootdse_partition_ops();
-
- ldap_service->rootDSE = part;
- DLIST_ADD_END(ldap_service->partitions, part, struct ldapsrv_partition *);
+
+ blob = data_blob(NULL, 0);
- part = talloc_p(ldap_service, struct ldapsrv_partition);
- if (!ldap_service) {
- DEBUG(0,("talloc_p(ldap_service, struct ldapsrv_partition) failed\n"));
+ if (call->replies == NULL) {
+ talloc_free(call);
return;
}
- part->base_dn = "*"; /* default partition */
- part->ops = ldapsrv_get_sldb_partition_ops();
-
- ldap_service->default_partition = part;
- DLIST_ADD_END(ldap_service->partitions, part, struct ldapsrv_partition *);
-
- service->private_data = ldap_service;
-
- if (lp_interfaces() && lp_bind_interfaces_only()) {
- int num_interfaces = iface_count();
- int i;
- /* We have been given an interfaces line, and been
- told to only bind to those interfaces. Create a
- socket per interface and bind to only these.
- */
- for(i = 0; i < num_interfaces; i++) {
- struct in_addr *ifip = iface_n_ip(i);
+ /* build all the replies into a single blob */
+ while (call->replies) {
+ DATA_BLOB b;
+ bool ret;
- if (ifip == NULL) {
- DEBUG(0,("ldapsrv_init: interface %d has NULL "
- "IP address !\n", i));
- continue;
- }
-
- add_socket(service, model_ops, ifip);
+ msg = call->replies->msg;
+ if (!ldap_encode(msg, &b, call)) {
+ DEBUG(0,("Failed to encode ldap reply of type %d\n", msg->type));
+ talloc_free(call);
+ return;
}
- } else {
- struct in_addr *ifip;
- /* Just bind to lp_socket_address() (usually 0.0.0.0) */
- ifip = interpret_addr2(service, lp_socket_address());
- add_socket(service, model_ops, ifip);
+ ret = data_blob_append(call, &blob, b.data, b.length);
+ data_blob_free(&b);
- talloc_destroy(ifip);
- }
-}
-
-/* This rw-buf api is made to avoid memcpy. For now do that like mad... The
- idea is to write into a circular list of buffers where the ideal case is
- that a read(2) holds a complete request that is then thrown away
- completely. */
+ talloc_set_name_const(blob.data, "Outgoing, encoded LDAP packet");
-void ldapsrv_consumed_from_buf(struct rw_buffer *buf,
- size_t length)
-{
- memcpy(buf->data, buf->data+length, buf->length-length);
- buf->length -= length;
-}
-
-static void peek_into_read_buf(struct rw_buffer *buf, uint8_t **out,
- size_t *out_length)
-{
- *out = buf->data;
- *out_length = buf->length;
-}
-
-BOOL ldapsrv_append_to_buf(struct rw_buffer *buf, uint8_t *data, size_t length)
-{
- buf->data = realloc(buf->data, buf->length+length);
-
- if (buf->data == NULL)
- return False;
-
- memcpy(buf->data+buf->length, data, length);
-
- buf->length += length;
- return True;
-}
-
-static BOOL read_into_buf(struct socket_context *sock, struct rw_buffer *buf)
-{
- NTSTATUS status;
- DATA_BLOB tmp_blob;
- BOOL ret;
+ if (!ret) {
+ talloc_free(call);
+ return;
+ }
- status = socket_recv(sock, sock, &tmp_blob, 1024, 0);
- if (!NT_STATUS_IS_OK(status)) {
- DEBUG(10,("socket_recv: %s\n",nt_errstr(status)));
- return False;
+ DLIST_REMOVE(call->replies, call->replies);
}
- ret = ldapsrv_append_to_buf(buf, tmp_blob.data, tmp_blob.length);
-
- talloc_free(tmp_blob.data);
-
- return ret;
+ packet_send_callback(conn->packet, blob,
+ call->send_callback, call->send_private);
+ talloc_free(call);
+ return;
}
-static BOOL ldapsrv_read_buf(struct ldapsrv_connection *conn)
+/*
+ decode/process data
+*/
+static NTSTATUS ldapsrv_decode(void *private, DATA_BLOB blob)
{
NTSTATUS status;
- DATA_BLOB tmp_blob;
- DATA_BLOB creds;
- BOOL ret;
- uint8_t *buf;
- int buf_length, sasl_length;
- struct socket_context *sock = conn->connection->socket;
- TALLOC_CTX *mem_ctx;
+ struct ldapsrv_connection *conn = talloc_get_type(private,
+ struct ldapsrv_connection);
+ struct asn1_data *asn1 = asn1_init(conn);
+ struct ldap_message *msg = talloc(conn, struct ldap_message);
- if (!conn->gensec || !conn->session_info ||
- !(gensec_have_feature(conn->gensec, GENSEC_WANT_SIGN) &&
- gensec_have_feature(conn->gensec, GENSEC_WANT_SEAL))) {
- return read_into_buf(sock, &conn->in_buffer);
+ if (asn1 == NULL || msg == NULL) {
+ return NT_STATUS_NO_MEMORY;
}
- mem_ctx = talloc(conn, 0);
- if (!mem_ctx) {
- DEBUG(0,("no memory\n"));
- return False;
+ if (!asn1_load(asn1, blob)) {
+ talloc_free(msg);
+ talloc_free(asn1);
+ return NT_STATUS_NO_MEMORY;
}
- status = socket_recv(sock, mem_ctx, &tmp_blob, 1024, 0);
+ status = ldap_decode(asn1, msg);
if (!NT_STATUS_IS_OK(status)) {
- DEBUG(10,("socket_recv: %s\n",nt_errstr(status)));
- talloc_free(mem_ctx);
- return False;
+ asn1_free(asn1);
+ return status;
}
- ret = ldapsrv_append_to_buf(&conn->sasl_in_buffer, tmp_blob.data, tmp_blob.length);
- if (!ret) {
- talloc_free(mem_ctx);
- return False;
- }
-
- peek_into_read_buf(&conn->sasl_in_buffer, &buf, &buf_length);
-
- if (buf_length < 4) {
- /* not enough yet */
- talloc_free(mem_ctx);
- return True;
- }
-
- sasl_length = RIVAL(buf, 0);
-
- if (buf_length < (4 + sasl_length)) {
- /* not enough yet */
- talloc_free(mem_ctx);
- return True;
- }
+ data_blob_free(&blob);
+ ldapsrv_process_message(conn, msg);
+ asn1_free(asn1);
+ return NT_STATUS_OK;
+}
- creds.data = buf + 4;
- creds.length = gensec_sig_size(conn->gensec);
+/*
+ Idle timeout handler
+*/
+static void ldapsrv_conn_idle_timeout(struct event_context *ev,
+ struct timed_event *te,
+ struct timeval t,
+ void *private)
+{
+ struct ldapsrv_connection *conn = talloc_get_type(private, struct ldapsrv_connection);
- if (creds.length > sasl_length) {
- /* invalid packet? */
- talloc_free(mem_ctx);
- return False;
- }
+ ldapsrv_terminate_connection(conn, "Timeout. No requests after bind");
+}
- tmp_blob.data = buf + (4 + creds.length);
- tmp_blob.length = (4 + sasl_length) - (4 + creds.length);
+/*
+ called when a LDAP socket becomes readable
+*/
+void ldapsrv_recv(struct stream_connection *c, uint16_t flags)
+{
+ struct ldapsrv_connection *conn =
+ talloc_get_type(c->private, struct ldapsrv_connection);
- if (gensec_have_feature(conn->gensec, GENSEC_WANT_SEAL)) {
- status = gensec_unseal_packet(conn->gensec, mem_ctx,
- tmp_blob.data, tmp_blob.length,
- tmp_blob.data, tmp_blob.length,
- &creds);
- if (!NT_STATUS_IS_OK(status)) {
- DEBUG(0,("gensec_unseal_packet: %s\n",nt_errstr(status)));
- talloc_free(mem_ctx);
- return False;
- }
- } else {
- status = gensec_check_packet(conn->gensec, mem_ctx,
- tmp_blob.data, tmp_blob.length,
- tmp_blob.data, tmp_blob.length,
- &creds);
- if (!NT_STATUS_IS_OK(status)) {
- DEBUG(0,("gensec_check_packet: %s\n",nt_errstr(status)));
- talloc_free(mem_ctx);
- return False;
- }
+ if (conn->limits.ite) { /* clean initial timeout if any */
+ talloc_free(conn->limits.ite);
+ conn->limits.ite = NULL;
}
- ret = ldapsrv_append_to_buf(&conn->in_buffer, tmp_blob.data, tmp_blob.length);
- if (!ret) {
- talloc_free(mem_ctx);
- return False;
+ if (conn->limits.te) { /* clean idle timeout if any */
+ talloc_free(conn->limits.te);
+ conn->limits.te = NULL;
}
- ldapsrv_consumed_from_buf(&conn->sasl_in_buffer, 4 + sasl_length);
+ packet_recv(conn->packet);
- talloc_free(mem_ctx);
- return ret;
+ /* set idle timeout */
+ conn->limits.te = event_add_timed(c->event.ctx, conn,
+ timeval_current_ofs(conn->limits.conn_idle_time, 0),
+ ldapsrv_conn_idle_timeout, conn);
}
-static BOOL write_from_buf(struct socket_context *sock, struct rw_buffer *buf)
+/*
+ called when a LDAP socket becomes writable
+*/
+static void ldapsrv_send(struct stream_connection *c, uint16_t flags)
{
- NTSTATUS status;
- DATA_BLOB tmp_blob;
- size_t sendlen;
-
- tmp_blob.data = buf->data;
- tmp_blob.length = buf->length;
-
- status = socket_send(sock, sock, &tmp_blob, &sendlen, 0);
- if (!NT_STATUS_IS_OK(status)) {
- DEBUG(10,("socket_send() %s\n",nt_errstr(status)));
- return False;
- }
+ struct ldapsrv_connection *conn =
+ talloc_get_type(c->private, struct ldapsrv_connection);
+
+ packet_queue_run(conn->packet);
+}
- ldapsrv_consumed_from_buf(buf, sendlen);
+static void ldapsrv_conn_init_timeout(struct event_context *ev,
+ struct timed_event *te,
+ struct timeval t,
+ void *private)
+{
+ struct ldapsrv_connection *conn = talloc_get_type(private, struct ldapsrv_connection);
- return True;
+ ldapsrv_terminate_connection(conn, "Timeout. No requests after initial connection");
}
-static BOOL ldapsrv_write_buf(struct ldapsrv_connection *conn)
+static int ldapsrv_load_limits(struct ldapsrv_connection *conn)
{
- NTSTATUS status;
- DATA_BLOB tmp_blob;
- DATA_BLOB creds;
- DATA_BLOB sasl;
- size_t sendlen;
- BOOL ret;
- struct socket_context *sock = conn->connection->socket;
- TALLOC_CTX *mem_ctx;
-
- if (!conn->gensec || !conn->session_info ||
- !(gensec_have_feature(conn->gensec, GENSEC_WANT_SIGN) &&
- gensec_have_feature(conn->gensec, GENSEC_WANT_SEAL))) {
- return write_from_buf(sock, &conn->out_buffer);
+ TALLOC_CTX *tmp_ctx;
+ const char *attrs[] = { "configurationNamingContext", NULL };
+ const char *attrs2[] = { "lDAPAdminLimits", NULL };
+ struct ldb_message_element *el;
+ struct ldb_result *res = NULL;
+ struct ldb_dn *basedn;
+ struct ldb_dn *conf_dn;
+ struct ldb_dn *policy_dn;
+ int i,ret;
+
+ /* set defaults limits in case of failure */
+ conn->limits.initial_timeout = 120;
+ conn->limits.conn_idle_time = 900;
+ conn->limits.max_page_size = 1000;
+ conn->limits.search_timeout = 120;
+
+
+ tmp_ctx = talloc_new(conn);
+ if (tmp_ctx == NULL) {
+ return -1;
}
- mem_ctx = talloc(conn, 0);
- if (!mem_ctx) {
- DEBUG(0,("no memory\n"));
- return False;
+ basedn = ldb_dn_new(tmp_ctx, conn->ldb, NULL);
+ if ( ! ldb_dn_validate(basedn)) {
+ goto failed;
}
- tmp_blob.data = conn->out_buffer.data;
- tmp_blob.length = conn->out_buffer.length;
-
- if (tmp_blob.length == 0) {
- goto nodata;
+ ret = ldb_search(conn->ldb, basedn, LDB_SCOPE_BASE, NULL, attrs, &res);
+ if (ret != LDB_SUCCESS) {
+ goto failed;
}
- if (gensec_have_feature(conn->gensec, GENSEC_WANT_SEAL)) {
- status = gensec_seal_packet(conn->gensec, mem_ctx,
- tmp_blob.data, tmp_blob.length,
- tmp_blob.data, tmp_blob.length,
- &creds);
- if (!NT_STATUS_IS_OK(status)) {
- DEBUG(0,("gensec_seal_packet: %s\n",nt_errstr(status)));
- talloc_free(mem_ctx);
- return False;
- }
- } else {
- status = gensec_sign_packet(conn->gensec, mem_ctx,
- tmp_blob.data, tmp_blob.length,
- tmp_blob.data, tmp_blob.length,
- &creds);
- if (!NT_STATUS_IS_OK(status)) {
- DEBUG(0,("gensec_sign_packet: %s\n",nt_errstr(status)));
- talloc_free(mem_ctx);
- return False;
- }
- }
+ talloc_steal(tmp_ctx, res);
- sasl = data_blob_talloc(mem_ctx, NULL, 4 + creds.length + tmp_blob.length);
- if (!sasl.data) {
- DEBUG(0,("no memory\n"));
- talloc_free(mem_ctx);
- return False;
+ if (res->count != 1) {
+ goto failed;
}
- RSIVAL(sasl.data, 0, creds.length + tmp_blob.length);
- memcpy(sasl.data + 4, creds.data, creds.length);
- memcpy(sasl.data + 4 + creds.length, tmp_blob.data, tmp_blob.length);
-
- ret = ldapsrv_append_to_buf(&conn->sasl_out_buffer, sasl.data, sasl.length);
- if (!ret) {
- talloc_free(mem_ctx);
- return False;
+ conf_dn = ldb_msg_find_attr_as_dn(conn->ldb, tmp_ctx, res->msgs[0], "configurationNamingContext");
+ if (conf_dn == NULL) {
+ goto failed;
}
- ldapsrv_consumed_from_buf(&conn->out_buffer, tmp_blob.length);
-nodata:
- tmp_blob.data = conn->sasl_out_buffer.data;
- tmp_blob.length = conn->sasl_out_buffer.length;
- status = socket_send(sock, mem_ctx, &tmp_blob, &sendlen, 0);
- if (!NT_STATUS_IS_OK(status)) {
- DEBUG(10,("socket_send() %s\n",nt_errstr(status)));
- talloc_free(mem_ctx);
- return False;
+ policy_dn = ldb_dn_copy(tmp_ctx, conf_dn);
+ ldb_dn_add_child_fmt(policy_dn, "CN=Default Query Policy,CN=Query-Policies,CN=Directory Service,CN=Windows NT,CN=Services");
+ if (policy_dn == NULL) {
+ goto failed;
}
- ldapsrv_consumed_from_buf(&conn->sasl_out_buffer, sendlen);
-
- talloc_free(mem_ctx);
-
- return True;
-}
-
-static BOOL ldap_encode_to_buf(struct ldap_message *msg, struct rw_buffer *buf)
-{
- DATA_BLOB blob;
- BOOL res;
+ ret = ldb_search(conn->ldb, policy_dn, LDB_SCOPE_BASE, NULL, attrs2, &res);
+ if (ret != LDB_SUCCESS) {
+ goto failed;
+ }
- if (!ldap_encode(msg, &blob))
- return False;
+ talloc_steal(tmp_ctx, res);
- res = ldapsrv_append_to_buf(buf, blob.data, blob.length);
+ if (res->count != 1) {
+ goto failed;
+ }
- data_blob_free(&blob);
- return res;
-}
+ el = ldb_msg_find_element(res->msgs[0], "lDAPAdminLimits");
+ if (el == NULL) {
+ goto failed;
+ }
-NTSTATUS ldapsrv_do_responses(struct ldapsrv_connection *conn)
-{
- struct ldapsrv_call *call, *next_call = NULL;
- struct ldapsrv_reply *reply, *next_reply = NULL;
-
- for (call=conn->calls; call; call=next_call) {
- for (reply=call->replies; reply; reply=next_reply) {
- if (!ldap_encode_to_buf(&reply->msg, &conn->out_buffer)) {
- return NT_STATUS_FOOBAR;
- }
- next_reply = reply->next;
- DLIST_REMOVE(call->replies, reply);
- reply->state = LDAPSRV_REPLY_STATE_SEND;
- talloc_free(reply);
+ for (i = 0; i < el->num_values; i++) {
+ char policy_name[256];
+ int policy_value, s;
+
+ s = sscanf((const char *)el->values[i].data, "%255[^=]=%d", policy_name, &policy_value);
+ if (ret != 2 || policy_value == 0)
+ continue;
+
+ if (strcasecmp("InitRecvTimeout", policy_name) == 0) {
+ conn->limits.initial_timeout = policy_value;
+ continue;
+ }
+ if (strcasecmp("MaxConnIdleTime", policy_name) == 0) {
+ conn->limits.conn_idle_time = policy_value;
+ continue;
+ }
+ if (strcasecmp("MaxPageSize", policy_name) == 0) {
+ conn->limits.max_page_size = policy_value;
+ continue;
+ }
+ if (strcasecmp("MaxQueryDuration", policy_name) == 0) {
+ conn->limits.search_timeout = policy_value;
+ continue;
}
- next_call = call->next;
- DLIST_REMOVE(conn->calls, call);
- call->state = LDAPSRV_CALL_STATE_COMPLETE;
- talloc_free(call);
}
- return NT_STATUS_OK;
-}
+ return 0;
-NTSTATUS ldapsrv_flush_responses(struct ldapsrv_connection *conn)
-{
- return NT_STATUS_OK;
+failed:
+ DEBUG(0, ("Failed to load ldap server query policies\n"));
+ talloc_free(tmp_ctx);
+ return -1;
}
/*
- called when a LDAP socket becomes readable
+ initialise a server_context from a open socket and register a event handler
+ for reading from that socket
*/
-static void ldapsrv_recv(struct server_connection *conn, time_t t,
- uint16_t flags)
+static void ldapsrv_accept(struct stream_connection *c)
{
- struct ldapsrv_connection *ldap_conn = conn->private_data;
- uint8_t *buf;
- int buf_length, msg_length;
- DATA_BLOB blob;
- ASN1_DATA data;
- struct ldapsrv_call *call;
+ struct ldapsrv_service *ldapsrv_service =
+ talloc_get_type(c->private, struct ldapsrv_service);
+ struct ldapsrv_connection *conn;
+ struct cli_credentials *server_credentials;
+ struct socket_address *socket_address;
NTSTATUS status;
+ int port;
- DEBUG(10,("ldapsrv_recv\n"));
-
- if (!ldapsrv_read_buf(ldap_conn)) {
- ldapsrv_terminate_connection(ldap_conn, "ldapsrv_read_buf() failed");
+ conn = talloc_zero(c, struct ldapsrv_connection);
+ if (!conn) {
+ stream_terminate_connection(c, "ldapsrv_accept: out of memory");
return;
}
- peek_into_read_buf(&ldap_conn->in_buffer, &buf, &buf_length);
+ conn->packet = NULL;
+ conn->connection = c;
+ conn->service = ldapsrv_service;
+ conn->sockets.raw = c->socket;
- while (buf_length > 0) {
- /* LDAP Messages are always SEQUENCES */
+ c->private = conn;
- if (!asn1_object_length(buf, buf_length, ASN1_SEQUENCE(0),
- &msg_length)) {
- ldapsrv_terminate_connection(ldap_conn, "asn1_object_length() failed");
+ socket_address = socket_get_my_addr(c->socket, conn);
+ if (!socket_address) {
+ ldapsrv_terminate_connection(conn, "ldapsrv_accept: failed to obtain local socket address!");
+ return;
+ }
+ port = socket_address->port;
+ talloc_free(socket_address);
+
+ if (port == 636) {
+ struct socket_context *tls_socket = tls_init_server(ldapsrv_service->tls_params, c->socket,
+ c->event.fde, NULL);
+ if (!tls_socket) {
+ ldapsrv_terminate_connection(conn, "ldapsrv_accept: tls_init_server() failed");
return;
}
+ talloc_unlink(c, c->socket);
+ talloc_steal(c, tls_socket);
+ c->socket = tls_socket;
+ conn->sockets.tls = tls_socket;
- if (buf_length < msg_length) {
- /* Not enough yet */
- break;
- }
-
- /* We've got a complete LDAP request in the in-buffer, convert
- * that to a ldap_message and put it into the incoming
- * queue. */
+ } else if (port == 3268) /* Global catalog */ {
+ conn->global_catalog = True;
+ }
+ conn->packet = packet_init(conn);
+ if (conn->packet == NULL) {
+ ldapsrv_terminate_connection(conn, "out of memory");
+ return;
+ }
- blob.data = buf;
- blob.length = msg_length;
+ packet_set_private(conn->packet, conn);
+ packet_set_socket(conn->packet, c->socket);
+ packet_set_callback(conn->packet, ldapsrv_decode);
+ packet_set_full_request(conn->packet, ldap_full_packet);
+ packet_set_error_handler(conn->packet, ldapsrv_error_handler);
+ packet_set_event_context(conn->packet, c->event.ctx);
+ packet_set_fde(conn->packet, c->event.fde);
+ packet_set_serialise(conn->packet);
+
+ /* Ensure we don't get packets until the database is ready below */
+ packet_recv_disable(conn->packet);
- if (!asn1_load(&data, blob)) {
- ldapsrv_terminate_connection(ldap_conn, "asn1_load() failed");
- return;
- }
+ server_credentials
+ = cli_credentials_init(conn);
+ if (!server_credentials) {
+ stream_terminate_connection(c, "Failed to init server credentials\n");
+ return;
+ }
+
+ cli_credentials_set_conf(server_credentials);
+ status = cli_credentials_set_machine_account(server_credentials);
+ if (!NT_STATUS_IS_OK(status)) {
+ stream_terminate_connection(c, talloc_asprintf(conn, "Failed to obtain server credentials, perhaps a standalone server?: %s\n", nt_errstr(status)));
+ return;
+ }
+ conn->server_credentials = server_credentials;
- call = talloc_p(ldap_conn, struct ldapsrv_call);
- if (!call) {
- ldapsrv_terminate_connection(ldap_conn, "no memory");
- return;
- }
+ /* Connections start out anonymous */
+ if (!NT_STATUS_IS_OK(auth_anonymous_session_info(conn, &conn->session_info))) {
+ ldapsrv_terminate_connection(conn, "failed to setup anonymous session info");
+ return;
+ }
- ZERO_STRUCTP(call);
- call->state = LDAPSRV_CALL_STATE_NEW;
- call->conn = ldap_conn;
- call->request.mem_ctx = call;
+ if (!NT_STATUS_IS_OK(ldapsrv_backend_Init(conn))) {
+ ldapsrv_terminate_connection(conn, "backend Init failed");
+ return;
+ }
- if (!ldap_decode(&data, &call->request)) {
- dump_data(0,buf, msg_length);
- asn1_free(&data);
- ldapsrv_terminate_connection(ldap_conn, "ldap_decode() failed");
- return;
- }
+ /* load limits from the conf partition */
+ ldapsrv_load_limits(conn); /* should we fail on error ? */
- asn1_free(&data);
+ /* register the server */
+ irpc_add_name(c->msg_ctx, "ldap_server");
- DLIST_ADD_END(ldap_conn->calls, call,
- struct ldapsrv_call *);
+ /* set connections limits */
+ conn->limits.ite = event_add_timed(c->event.ctx, conn,
+ timeval_current_ofs(conn->limits.initial_timeout, 0),
+ ldapsrv_conn_init_timeout, conn);
- ldapsrv_consumed_from_buf(&ldap_conn->in_buffer, msg_length);
+ packet_recv_enable(conn->packet);
- status = ldapsrv_do_call(call);
- if (!NT_STATUS_IS_OK(status)) {
- ldapsrv_terminate_connection(ldap_conn, "ldapsrv_do_call() failed");
- return;
- }
+}
- peek_into_read_buf(&ldap_conn->in_buffer, &buf, &buf_length);
- }
+static const struct stream_server_ops ldap_stream_ops = {
+ .name = "ldap",
+ .accept_connection = ldapsrv_accept,
+ .recv_handler = ldapsrv_recv,
+ .send_handler = ldapsrv_send,
+};
- status = ldapsrv_do_responses(ldap_conn);
+/*
+ add a socket address to the list of events, one event per port
+*/
+static NTSTATUS add_socket(struct event_context *event_context,
+ const struct model_ops *model_ops,
+ const char *address, struct ldapsrv_service *ldap_service)
+{
+ uint16_t port = 389;
+ NTSTATUS status;
+ const char *attrs[] = { "options", NULL };
+ int ret;
+ struct ldb_result *res;
+ struct ldb_context *ldb;
+ int options;
+
+ status = stream_setup_socket(event_context, model_ops, &ldap_stream_ops,
+ "ipv4", address, &port, ldap_service);
if (!NT_STATUS_IS_OK(status)) {
- ldapsrv_terminate_connection(ldap_conn, "ldapsrv_do_responses() failed");
- return;
+ DEBUG(0,("ldapsrv failed to bind to %s:%u - %s\n",
+ address, port, nt_errstr(status)));
}
- if ((ldap_conn->out_buffer.length > 0)||(ldap_conn->sasl_out_buffer.length > 0)) {
- conn->event.fde->flags |= EVENT_FD_WRITE;
+ if (tls_support(ldap_service->tls_params)) {
+ /* add ldaps server */
+ port = 636;
+ status = stream_setup_socket(event_context, model_ops, &ldap_stream_ops,
+ "ipv4", address, &port, ldap_service);
+ if (!NT_STATUS_IS_OK(status)) {
+ DEBUG(0,("ldapsrv failed to bind to %s:%u - %s\n",
+ address, port, nt_errstr(status)));
+ }
}
- return;
-}
+ /* Load LDAP database */
+ ldb = samdb_connect(ldap_service, system_session(ldap_service));
+ if (!ldb) {
+ return NT_STATUS_INTERNAL_DB_CORRUPTION;
+ }
-/*
- called when a LDAP socket becomes writable
-*/
-static void ldapsrv_send(struct server_connection *conn, time_t t,
- uint16_t flags)
-{
- struct ldapsrv_connection *ldap_conn = conn->private_data;
-
- DEBUG(10,("ldapsrv_send\n"));
-
- if (!ldapsrv_write_buf(ldap_conn)) {
- ldapsrv_terminate_connection(ldap_conn, "ldapsrv_write_buf() failed");
- return;
+ /* Query cn=ntds settings,.... */
+ ret = ldb_search(ldb, samdb_ntds_settings_dn(ldb), LDB_SCOPE_BASE, NULL, attrs, &res);
+ if (ret) {
+ return NT_STATUS_INTERNAL_DB_CORRUPTION;
}
-
- if (ldap_conn->out_buffer.length == 0 && ldap_conn->sasl_out_buffer.length == 0) {
- conn->event.fde->flags &= ~EVENT_FD_WRITE;
+ if (res->count != 1) {
+ talloc_free(res);
+ return NT_STATUS_NOT_FOUND;
}
- return;
-}
+ options = ldb_msg_find_attr_as_int(res->msgs[0], "options", 0);
+ talloc_free(res);
+ talloc_free(ldb);
-/*
- called when connection is idle
-*/
-static void ldapsrv_idle(struct server_connection *conn, time_t t)
-{
- DEBUG(10,("ldapsrv_idle: not implemented!\n"));
- return;
-}
+ /* if options attribute has the 0x00000001 flag set, then enable the global catlog */
+ if (options & 0x000000001) {
+ port = 3268;
+ status = stream_setup_socket(event_context, model_ops, &ldap_stream_ops,
+ "ipv4", address, &port, ldap_service);
+ if (!NT_STATUS_IS_OK(status)) {
+ DEBUG(0,("ldapsrv failed to bind to %s:%u - %s\n",
+ address, port, nt_errstr(status)));
+ }
+ }
-static void ldapsrv_close(struct server_connection *conn, const char *reason)
-{
- return;
+ return status;
}
/*
- initialise a server_context from a open socket and register a event handler
- for reading from that socket
+ open the ldap server sockets
*/
-static void ldapsrv_accept(struct server_connection *conn)
-{
- struct ldapsrv_connection *ldap_conn;
+static void ldapsrv_task_init(struct task_server *task)
+{
+ struct ldapsrv_service *ldap_service;
+ NTSTATUS status;
+ const struct model_ops *model_ops;
- DEBUG(10, ("ldapsrv_accept\n"));
+ task_server_set_title(task, "task[ldapsrv]");
- ldap_conn = talloc_p(conn, struct ldapsrv_connection);
+ /* run the ldap server as a single process */
+ model_ops = process_model_byname("single");
+ if (!model_ops) goto failed;
- if (ldap_conn == NULL)
- return;
+ ldap_service = talloc_zero(task, struct ldapsrv_service);
+ if (ldap_service == NULL) goto failed;
- ZERO_STRUCTP(ldap_conn);
- ldap_conn->connection = conn;
- ldap_conn->service = talloc_reference(ldap_conn, conn->service->private_data);
+ ldap_service->tls_params = tls_initialise(ldap_service);
+ if (ldap_service->tls_params == NULL) goto failed;
- conn->private_data = ldap_conn;
+ if (lp_interfaces() && lp_bind_interfaces_only()) {
+ int num_interfaces = iface_count();
+ int i;
+
+ /* We have been given an interfaces line, and been
+ told to only bind to those interfaces. Create a
+ socket per interface and bind to only these.
+ */
+ for(i = 0; i < num_interfaces; i++) {
+ const char *address = iface_n_ip(i);
+ status = add_socket(task->event_ctx, model_ops, address, ldap_service);
+ if (!NT_STATUS_IS_OK(status)) goto failed;
+ }
+ } else {
+ status = add_socket(task->event_ctx, model_ops, lp_socket_address(), ldap_service);
+ if (!NT_STATUS_IS_OK(status)) goto failed;
+ }
return;
+
+failed:
+ task_server_terminate(task, "Failed to startup ldap server task");
}
/*
- called on a fatal error that should cause this server to terminate
+ called on startup of the web server service It's job is to start
+ listening on all configured sockets
*/
-static void ldapsrv_exit(struct server_service *service, const char *reason)
-{
- DEBUG(10,("ldapsrv_exit\n"));
- return;
+static NTSTATUS ldapsrv_init(struct event_context *event_context,
+ const struct model_ops *model_ops)
+{
+ return task_server_startup(event_context, model_ops, ldapsrv_task_init);
}
-static const struct server_service_ops ldap_server_ops = {
- .name = "ldap",
- .service_init = ldapsrv_init,
- .accept_connection = ldapsrv_accept,
- .recv_handler = ldapsrv_recv,
- .send_handler = ldapsrv_send,
- .idle_handler = ldapsrv_idle,
- .close_connection = ldapsrv_close,
- .service_exit = ldapsrv_exit,
-};
-
-const struct server_service_ops *ldapsrv_get_ops(void)
-{
- return &ldap_server_ops;
-}
NTSTATUS server_service_ldap_init(void)
{
- return NT_STATUS_OK;
+ return register_server_service("ldap", ldapsrv_init);
}
git.samba.org / kai / samba.git / blobdiff