r6725: the beginnings of a cldap server

(This used to be commit e51e0dffa8f8bff9bd1535751e805b548b6c6d7f)

3 files changed, 189 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..8397a624c0
--- /dev/null
+++ b/source4/cldap_server/cldap_server.c
@@ -0,0 +1,148 @@
+/* 
+   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/events/events.h"
+#include "lib/socket/socket.h"
+#include "smbd/service_task.h"
+#include "cldap_server/cldap_server.h"
+
+
+/*
+  handle incoming cldap requests
+*/
+static void cldapd_request_handler(struct cldap_socket *cldap, 
+				   struct ldap_message *ldap_msg, 
+				   const char *src_address, int src_port)
+{
+	struct cldapd_server *cldapd = talloc_get_type(cldap->incoming.private,
+						       struct cldapd_server);
+	if (ldap_msg->type != LDAP_TAG_SearchRequest) {
+		DEBUG(0,("Invalid CLDAP request type %d from %s:%d\n", 
+			 ldap_msg->type, src_address, src_port));
+		return;
+	}
+	DEBUG(0,("CLDAP search for '%s'\n", ldap_msg->r.SearchRequest.filter));
+}
+
+/*
+  start listening on the given address
+*/
+static NTSTATUS cldapd_add_socket(struct cldapd_server *cldapd, const char *address)
+{
+	struct cldap_socket *cldapsock;
+	NTSTATUS status;
+
+	/* listen for unicasts on port 137 */
+	cldapsock = cldap_socket_init(cldapd, cldapd->task->event_ctx);
+	NT_STATUS_HAVE_NO_MEMORY(cldapsock);
+
+	status = socket_listen(cldapsock->sock, address, lp_cldap_port(), 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;
+	}
+
+	cldap_set_incoming_handler(cldapsock, cldapd_request_handler, cldapd);
+
+	return NT_STATUS_OK;
+}
+
+
+/*
+  setup our listening sockets on the configured network interfaces
+*/
+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 also 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_terminate(task, "cldapd: no network interfaces configured");
+		return;
+	}
+
+	cldapd = talloc(task, struct cldapd_server);
+	if (cldapd == NULL) {
+		task_terminate(task, "cldapd: out of memory");
+		return;
+	}
+
+	cldapd->task = task;
+
+	/* start listening on the configured network interfaces */
+	status = cldapd_startup_interfaces(cldapd);
+	if (!NT_STATUS_IS_OK(status)) {
+		task_terminate(task, "cldapd failed to setup interfaces");
+		return;
+	}
+}
+
+
+/*
+  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);
+}
diff --git a/source4/cldap_server/cldap_server.h b/source4/cldap_server/cldap_server.h
new file mode 100644
index 0000000000..f110d05d16
--- /dev/null
+++ b/source4/cldap_server/cldap_server.h
@@ -0,0 +1,30 @@
+/* 
+   Unix SMB/CIFS implementation.
+
+   CLDAP server structures
+
+   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 "libcli/cldap/cldap.h"
+
+/*
+  top level context structure for the cldap server
+*/
+struct cldapd_server {
+	struct task_server *task;
+};
diff --git a/source4/cldap_server/config.mk b/source4/cldap_server/config.mk
new file mode 100644
index 0000000000..225fb1cf08
--- /dev/null
+++ b/source4/cldap_server/config.mk
@@ -0,0 +1,11 @@
+# CLDAP server subsystem
+
+#######################
+# Start SUBSYSTEM CLDAPD
+[SUBSYSTEM::CLDAPD]
+INIT_OBJ_FILES = \
+		cldap_server/cldap_server.o
+REQUIRED_SUBSYSTEMS = \
+		LIBCLI_CLDAP
+# End SUBSYSTEM CLDAPD
+#######################