/* 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 2 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, write to the Free Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */ #include "includes.h" #include "libcli/ldap/ldap.h" #include "lib/socket/socket.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 "db_wrap.h" #include "auth/auth.h" /* handle incoming cldap requests */ static void cldapd_request_handler(struct cldap_socket *cldap, struct ldap_message *ldap_msg, struct socket_address *src) { struct ldap_SearchRequest *search; if (ldap_msg->type != LDAP_TAG_SearchRequest) { DEBUG(0,("Invalid CLDAP request type %d from %s:%d\n", ldap_msg->type, src->addr, src->port)); cldap_error_reply(cldap, ldap_msg->messageid, src, LDAP_OPERATIONS_ERROR, "Invalid CLDAP request"); return; } search = &ldap_msg->r.SearchRequest; if (strcmp("", search->basedn) != 0) { DEBUG(0,("Invalid CLDAP basedn '%s' from %s:%d\n", search->basedn, src->addr, src->port)); cldap_error_reply(cldap, ldap_msg->messageid, src, LDAP_OPERATIONS_ERROR, "Invalid CLDAP basedn"); return; } if (search->scope != LDAP_SEARCH_SCOPE_BASE) { DEBUG(0,("Invalid CLDAP scope %d from %s:%d\n", search->scope, src->addr, src->port)); cldap_error_reply(cldap, ldap_msg->messageid, src, LDAP_OPERATIONS_ERROR, "Invalid CLDAP scope"); return; } if (search->num_attributes == 1 && strcasecmp(search->attributes[0], "netlogon") == 0) { cldapd_netlogon_request(cldap, ldap_msg->messageid, search->tree, src); return; } cldapd_rootdse_request(cldap, ldap_msg->messageid, search, src); } /* start listening on the given address */ static NTSTATUS cldapd_add_socket(struct cldapd_server *cldapd, const char *address) { struct cldap_socket *cldapsock; struct socket_address *socket_address; NTSTATUS status; /* listen for unicasts on the CLDAP port (389) */ cldapsock = cldap_socket_init(cldapd, cldapd->task->event_ctx); NT_STATUS_HAVE_NO_MEMORY(cldapsock); socket_address = socket_address_from_strings(cldapsock, cldapsock->sock->backend_name, address, lp_cldap_port()); if (!socket_address) { talloc_free(cldapsock); return NT_STATUS_NO_MEMORY; } status = socket_listen(cldapsock->sock, socket_address, 0, 0); if (!NT_STATUS_IS_OK(status)) { DEBUG(0,("Failed to bind to %s:%d - %s\n", address, lp_cldap_port(), nt_errstr(status))); talloc_free(cldapsock); 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) { int num_interfaces = iface_count(); TALLOC_CTX *tmp_ctx = talloc_new(cldapd); NTSTATUS status; /* if we are allowing incoming packets from any address, then we need to bind to the wildcard address */ if (!lp_bind_interfaces_only()) { status = cldapd_add_socket(cldapd, "0.0.0.0"); NT_STATUS_NOT_OK_RETURN(status); } else { int i; for (i=0; i<num_interfaces; i++) { const char *address = talloc_strdup(tmp_ctx, iface_n_ip(i)); status = cldapd_add_socket(cldapd, address); NT_STATUS_NOT_OK_RETURN(status); } } talloc_free(tmp_ctx); return NT_STATUS_OK; } /* startup the cldapd task */ static void cldapd_task_init(struct task_server *task) { struct cldapd_server *cldapd; NTSTATUS status; if (iface_count() == 0) { task_server_terminate(task, "cldapd: no network interfaces configured"); return; } task_server_set_title(task, "task[cldapd]"); cldapd = talloc(task, struct cldapd_server); if (cldapd == NULL) { task_server_terminate(task, "cldapd: out of memory"); return; } cldapd->task = task; cldapd->samctx = samdb_connect(cldapd, anonymous_session(cldapd)); if (cldapd->samctx == NULL) { task_server_terminate(task, "cldapd failed to open samdb"); return; } /* start listening on the configured network interfaces */ status = cldapd_startup_interfaces(cldapd); if (!NT_STATUS_IS_OK(status)) { task_server_terminate(task, "cldapd failed to setup interfaces"); return; } irpc_add_name(task->msg_ctx, "cldap_server"); } /* initialise the cldapd server */ static NTSTATUS cldapd_init(struct event_context *event_ctx, const struct model_ops *model_ops) { return task_server_startup(event_ctx, model_ops, cldapd_task_init); } /* register ourselves as a available server */ NTSTATUS server_service_cldapd_init(void) { return register_server_service("cldap", cldapd_init); }