/* Unix SMB/CIFS implementation. CLDAP server task Copyright (C) Andrew Tridgell 2005 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 . */ #include "includes.h" #include #include "libcli/ldap/ldap.h" #include "lib/messaging/irpc.h" #include "smbd/service_task.h" #include "smbd/service.h" #include "cldap_server/cldap_server.h" #include "system/network.h" #include "lib/socket/netif.h" #include "lib/ldb/include/ldb.h" #include "lib/ldb/include/ldb_errors.h" #include "dsdb/samdb/samdb.h" #include "ldb_wrap.h" #include "auth/auth.h" #include "param/param.h" #include "../lib/tsocket/tsocket.h" /* handle incoming cldap requests */ static void cldapd_request_handler(struct cldap_socket *cldap, void *private_data, struct cldap_incoming *in) { struct cldapd_server *cldapd = talloc_get_type(private_data, struct cldapd_server); struct ldap_SearchRequest *search; if (in->ldap_msg->type != LDAP_TAG_SearchRequest) { DEBUG(0,("Invalid CLDAP request type %d from %s\n", in->ldap_msg->type, tsocket_address_string(in->src, in))); cldap_error_reply(cldap, in->ldap_msg->messageid, in->src, LDAP_OPERATIONS_ERROR, "Invalid CLDAP request"); talloc_free(in); return; } search = &in->ldap_msg->r.SearchRequest; if (strcmp("", search->basedn) != 0) { DEBUG(0,("Invalid CLDAP basedn '%s' from %s\n", search->basedn, tsocket_address_string(in->src, in))); cldap_error_reply(cldap, in->ldap_msg->messageid, in->src, LDAP_OPERATIONS_ERROR, "Invalid CLDAP basedn"); talloc_free(in); return; } if (search->scope != LDAP_SEARCH_SCOPE_BASE) { DEBUG(0,("Invalid CLDAP scope %d from %s\n", search->scope, tsocket_address_string(in->src, in))); cldap_error_reply(cldap, in->ldap_msg->messageid, in->src, LDAP_OPERATIONS_ERROR, "Invalid CLDAP scope"); talloc_free(in); return; } if (search->num_attributes == 1 && strcasecmp(search->attributes[0], "netlogon") == 0) { cldapd_netlogon_request(cldap, cldapd, in, in->ldap_msg->messageid, search->tree, in->src); talloc_free(in); return; } cldapd_rootdse_request(cldap, cldapd, in, in->ldap_msg->messageid, search, in->src); talloc_free(in); } /* start listening on the given address */ static NTSTATUS cldapd_add_socket(struct cldapd_server *cldapd, struct loadparm_context *lp_ctx, const char *address) { struct cldap_socket *cldapsock; struct tsocket_address *socket_address; NTSTATUS status; int ret; ret = tsocket_address_inet_from_strings(cldapd, "ip", address, lp_cldap_port(lp_ctx), &socket_address); if (ret != 0) { status = map_nt_error_from_unix(errno); DEBUG(0,("invalid address %s:%d - %s:%s\n", address, lp_cldap_port(lp_ctx), gai_strerror(ret), nt_errstr(status))); return status; } /* listen for unicasts on the CLDAP port (389) */ status = cldap_socket_init(cldapd, cldapd->task->event_ctx, socket_address, NULL, &cldapsock); if (!NT_STATUS_IS_OK(status)) { DEBUG(0,("Failed to bind to %s - %s\n", tsocket_address_string(socket_address, socket_address), nt_errstr(status))); talloc_free(socket_address); return status; } talloc_free(socket_address); cldap_set_incoming_handler(cldapsock, cldapd_request_handler, cldapd); return NT_STATUS_OK; } /* setup our listening sockets on the configured network interfaces */ static NTSTATUS cldapd_startup_interfaces(struct cldapd_server *cldapd, struct loadparm_context *lp_ctx, struct interface *ifaces) { int num_interfaces; TALLOC_CTX *tmp_ctx = talloc_new(cldapd); NTSTATUS status; unsigned int i; num_interfaces = iface_count(ifaces); /* if we are allowing incoming packets from any address, then we need to bind to the wildcard address */ if (!lp_bind_interfaces_only(lp_ctx)) { status = cldapd_add_socket(cldapd, lp_ctx, "0.0.0.0"); NT_STATUS_NOT_OK_RETURN(status); } /* now we have to also listen on the specific interfaces, so that replies always come from the right IP */ for (i=0; ilp_ctx), &ifaces); if (iface_count(ifaces) == 0) { task_server_terminate(task, "cldapd: no network interfaces configured", false); return; } switch (lp_server_role(task->lp_ctx)) { case ROLE_STANDALONE: task_server_terminate(task, "cldap_server: no CLDAP server required in standalone configuration", false); return; case ROLE_DOMAIN_MEMBER: task_server_terminate(task, "cldap_server: no CLDAP server required in member server configuration", false); return; case ROLE_DOMAIN_CONTROLLER: /* Yes, we want an CLDAP server */ break; } task_server_set_title(task, "task[cldapd]"); cldapd = talloc(task, struct cldapd_server); if (cldapd == NULL) { task_server_terminate(task, "cldapd: out of memory", true); return; } cldapd->task = task; cldapd->samctx = samdb_connect(cldapd, task->event_ctx, task->lp_ctx, system_session(task->lp_ctx)); if (cldapd->samctx == NULL) { task_server_terminate(task, "cldapd failed to open samdb", true); return; } /* start listening on the configured network interfaces */ status = cldapd_startup_interfaces(cldapd, task->lp_ctx, ifaces); if (!NT_STATUS_IS_OK(status)) { task_server_terminate(task, "cldapd failed to setup interfaces", true); return; } irpc_add_name(task->msg_ctx, "cldap_server"); } /* register ourselves as a available server */ NTSTATUS server_service_cldapd_init(void) { return register_server_service("cldap", cldapd_task_init); }