diff options
Diffstat (limited to 'source4/cldap_server/cldap_server.c')
| -rw-r--r-- | source4/cldap_server/cldap_server.c | 213 |
1 files changed, 213 insertions, 0 deletions
diff --git a/source4/cldap_server/cldap_server.c b/source4/cldap_server/cldap_server.c new file mode 100644 index 0000000000..310fb564e0 --- /dev/null +++ b/source4/cldap_server/cldap_server.c @@ -0,0 +1,213 @@ +/* + 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 <http://www.gnu.org/licenses/>. +*/ + +#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 "ldb_wrap.h" +#include "auth/auth.h" +#include "param/param.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, struct loadparm_context *lp_ctx, + 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, lp_iconv_convenience(cldapd->task->lp_ctx)); + NT_STATUS_HAVE_NO_MEMORY(cldapsock); + + socket_address = socket_address_from_strings(cldapsock, cldapsock->sock->backend_name, + address, lp_cldap_port(lp_ctx)); + 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(lp_ctx), 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, struct loadparm_context *lp_ctx, + struct interface *ifaces) +{ + int num_interfaces; + TALLOC_CTX *tmp_ctx = talloc_new(cldapd); + NTSTATUS status; + + 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); + } else { + int i; + + for (i=0; i<num_interfaces; i++) { + const char *address = talloc_strdup(tmp_ctx, iface_n_ip(ifaces, i)); + status = cldapd_add_socket(cldapd, lp_ctx, 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; + struct interface *ifaces; + + load_interfaces(task, lp_interfaces(task->lp_ctx), &ifaces); + + if (iface_count(ifaces) == 0) { + task_server_terminate(task, "cldapd: no network interfaces configured"); + return; + } + + switch (lp_server_role(task->lp_ctx)) { + case ROLE_STANDALONE: + task_server_terminate(task, "cldap_server: no CLDAP server required in standalone configuration"); + return; + case ROLE_DOMAIN_MEMBER: + task_server_terminate(task, "cldap_server: no CLDAP server required in member server configuration"); + 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"); + return; + } + + cldapd->task = task; + cldapd->samctx = samdb_connect(cldapd, task->event_ctx, task->lp_ctx, system_session(cldapd, task->lp_ctx)); + 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, task->lp_ctx, ifaces); + if (!NT_STATUS_IS_OK(status)) { + task_server_terminate(task, "cldapd failed to setup interfaces"); + 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); +} |