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-rw-r--r--source4/kdc/config.mk11
-rw-r--r--source4/kdc/kdc.c187
-rw-r--r--source4/kdc/kdc.h48
3 files changed, 246 insertions, 0 deletions
diff --git a/source4/kdc/config.mk b/source4/kdc/config.mk
new file mode 100644
index 0000000000..b9313b2544
--- /dev/null
+++ b/source4/kdc/config.mk
@@ -0,0 +1,11 @@
+# CLDAP server subsystem
+
+#######################
+# Start SUBSYSTEM CLDAPD
+[SUBSYSTEM::KDC]
+INIT_OBJ_FILES = \
+ kdc/kdc.o
+REQUIRED_SUBSYSTEMS = \
+ SOCKET
+# End SUBSYSTEM CLDAPD
+#######################
diff --git a/source4/kdc/kdc.c b/source4/kdc/kdc.c
new file mode 100644
index 0000000000..ae8605467a
--- /dev/null
+++ b/source4/kdc/kdc.c
@@ -0,0 +1,187 @@
+/*
+ Unix SMB/CIFS implementation.
+
+ KDC Server startup
+
+ Copyright (C) Andrew Bartlett <abartlet@samba.org> 2005
+ 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 "smbd/service_task.h"
+#include "lib/events/events.h"
+#include "lib/socket/socket.h"
+#include "kdc/kdc.h"
+
+
+/*
+ handle fd events on a cldap_socket
+*/
+static void kdc_socket_handler(struct event_context *ev, struct fd_event *fde,
+ uint16_t flags, void *private)
+{
+ NTSTATUS status;
+ struct kdc_socket *kdc_socket = talloc_get_type(private, struct kdc_socket);
+ if (flags & EVENT_FD_WRITE) {
+ /* this should not happen */
+ } else if (flags & EVENT_FD_READ) {
+ TALLOC_CTX *tmp_ctx = talloc_new(kdc_socket);
+ DATA_BLOB blob = data_blob_talloc(tmp_ctx, NULL, 64 * 1024);
+ size_t nread;
+ const char *src_addr;
+ int src_port;
+
+ DEBUG(0, ("incoming!\n"));
+
+ status = socket_recvfrom(kdc_socket->sock, blob.data, blob.length, &nread, 0,
+ &src_addr, &src_port);
+ if (!NT_STATUS_IS_OK(status)) {
+ talloc_free(tmp_ctx);
+ return;
+ }
+ talloc_steal(tmp_ctx, src_addr);
+ blob.length = nread;
+
+ DEBUG(2,("Received krb5 packet of length %d from %s:%d\n",
+ blob.length, src_addr, src_port));
+
+
+ }
+}
+
+/*
+ start listening on the given address
+*/
+static NTSTATUS kdc_add_socket(struct kdc_server *kdc, const char *address)
+{
+ struct kdc_socket *kdc_socket;
+ NTSTATUS status;
+
+ kdc_socket = talloc(kdc, struct kdc_socket);
+ NT_STATUS_HAVE_NO_MEMORY(kdc_socket);
+
+ status = socket_create("ip", SOCKET_TYPE_DGRAM, &kdc_socket->sock, 0);
+ if (!NT_STATUS_IS_OK(status)) {
+ talloc_free(kdc_socket);
+ return status;
+ }
+
+ kdc_socket->kdc = kdc;
+
+ talloc_steal(kdc_socket, kdc_socket->sock);
+
+ kdc_socket->fde = event_add_fd(kdc->task->event_ctx, kdc,
+ socket_get_fd(kdc_socket->sock), 0,
+ kdc_socket_handler, kdc_socket);
+
+ status = socket_listen(kdc_socket->sock, address, lp_krb5_port(), 0, 0);
+ if (!NT_STATUS_IS_OK(status)) {
+ DEBUG(0,("Failed to bind to %s:%d - %s\n",
+ address, lp_krb5_port(), nt_errstr(status)));
+ talloc_free(kdc_socket);
+ return status;
+ }
+
+ return NT_STATUS_OK;
+}
+
+
+/*
+ setup our listening sockets on the configured network interfaces
+*/
+NTSTATUS kdc_startup_interfaces(struct kdc_server *kdc)
+{
+ int num_interfaces = iface_count();
+ TALLOC_CTX *tmp_ctx = talloc_new(kdc);
+ 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 = kdc_add_socket(kdc, "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 = kdc_add_socket(kdc, address);
+ NT_STATUS_NOT_OK_RETURN(status);
+ }
+ }
+
+ talloc_free(tmp_ctx);
+
+ return NT_STATUS_OK;
+}
+
+/*
+ startup the kdc task
+*/
+static void kdc_task_init(struct task_server *task)
+{
+ struct kdc_server *kdc;
+ NTSTATUS status;
+
+ if (iface_count() == 0) {
+ task_terminate(task, "kdc: no network interfaces configured");
+ return;
+ }
+
+ kdc = talloc(task, struct kdc_server);
+ if (kdc == NULL) {
+ task_terminate(task, "kdc: out of memory");
+ return;
+ }
+
+ kdc->task = task;
+
+ /* Setup the KDC configuration */
+ kdc->config = talloc(kdc, struct krb5_kdc_configuration);
+ if (!kdc->config) {
+ task_terminate(task, "kdc: out of memory");
+ return;
+ }
+ krb5_kdc_default_config(kdc->config);
+
+ /* TODO: Fill in the hdb and logging details */
+
+ /* start listening on the configured network interfaces */
+ status = kdc_startup_interfaces(kdc);
+ if (!NT_STATUS_IS_OK(status)) {
+ task_terminate(task, "kdc failed to setup interfaces");
+ return;
+ }
+
+ DEBUG(0, ("When I grow up, I want to be a KDC!\n"));
+}
+
+
+/*
+ called on startup of the KDC service
+*/
+static NTSTATUS kdc_init(struct event_context *event_ctx,
+ const struct model_ops *model_ops)
+{
+ return task_server_startup(event_ctx, model_ops, kdc_task_init);
+}
+
+/* called at smbd startup - register ourselves as a server service */
+NTSTATUS server_service_kdc_init(void)
+{
+ return register_server_service("kdc", kdc_init);
+}
diff --git a/source4/kdc/kdc.h b/source4/kdc/kdc.h
new file mode 100644
index 0000000000..25b8745bce
--- /dev/null
+++ b/source4/kdc/kdc.h
@@ -0,0 +1,48 @@
+/*
+ Unix SMB/CIFS implementation.
+
+ KDC structures
+
+ Copyright (C) Andrew Tridgell 2005
+ Copyright (C) Andrew Bartlett <abartlet@samba.org> 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 "system/kerberos.h"
+#include <kdc.h>
+
+
+/*
+ top level context structure for the cldap server
+*/
+struct kdc_server {
+ struct task_server *task;
+ struct krb5_kdc_configuration *config;
+};
+
+struct kdc_socket {
+ struct socket_context *sock;
+ struct event_context *event_ctx;
+
+ struct kdc_server *kdc;
+
+ /* the fd event */
+ struct fd_event *fde;
+
+ /* a queue of outgoing replies */
+ struct kdc_reply *send_queue;
+
+};
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