-/*
+/*
Unix SMB/CIFS implementation.
KDC Server startup
- Copyright (C) Andrew Bartlett <abartlet@samba.org> 2005
+ Copyright (C) Andrew Bartlett <abartlet@samba.org> 2005-2008
Copyright (C) Andrew Tridgell 2005
Copyright (C) Stefan Metzmacher 2005
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 "smbd/service_task.h"
-#include "smbd/service.h"
-#include "smbd/service_stream.h"
#include "smbd/process_model.h"
-#include "lib/events/events.h"
-#include "lib/socket/socket.h"
-#include "system/network.h"
-#include "lib/util/dlinklist.h"
+#include "lib/tsocket/tsocket.h"
+#include "libcli/util/tstream.h"
#include "lib/messaging/irpc.h"
+#include "librpc/gen_ndr/ndr_irpc.h"
+#include "librpc/gen_ndr/ndr_krb5pac.h"
#include "lib/stream/packet.h"
-#include "librpc/gen_ndr/samr.h"
#include "lib/socket/netif.h"
#include "param/param.h"
-#include "kdc/kdc.h"
+#include "kdc/kdc-glue.h"
+#include "dsdb/samdb/samdb.h"
+#include "auth/session.h"
+NTSTATUS server_service_kdc_init(void);
-/* Disgusting hack to get a mem_ctx and lp_ctx into the hdb plugin, when
- * used as a keytab */
-TALLOC_CTX *kdc_mem_ctx;
-struct loadparm_context *kdc_lp_ctx;
+extern struct krb5plugin_windc_ftable windc_plugin_table;
+extern struct hdb_method hdb_samba4;
-/* hold all the info needed to send a reply */
-struct kdc_reply {
- struct kdc_reply *next, *prev;
- struct socket_address *dest;
- DATA_BLOB packet;
-};
+static NTSTATUS kdc_proxy_unavailable_error(struct kdc_server *kdc,
+ TALLOC_CTX *mem_ctx,
+ DATA_BLOB *out)
+{
+ int kret;
+ krb5_data k5_error_blob;
+
+ kret = krb5_mk_error(kdc->smb_krb5_context->krb5_context,
+ KRB5KDC_ERR_SVC_UNAVAILABLE, NULL, NULL,
+ NULL, NULL, NULL, NULL, &k5_error_blob);
+ if (kret != 0) {
+ DEBUG(2,(__location__ ": Unable to form krb5 error reply\n"));
+ return NT_STATUS_INTERNAL_ERROR;
+ }
+
+ *out = data_blob_talloc(mem_ctx, k5_error_blob.data, k5_error_blob.length);
+ krb5_data_free(&k5_error_blob);
+ if (!out->data) {
+ return NT_STATUS_NO_MEMORY;
+ }
-typedef bool (*kdc_process_fn_t)(struct kdc_server *kdc,
- TALLOC_CTX *mem_ctx,
- DATA_BLOB *input,
- DATA_BLOB *reply,
- struct socket_address *peer_addr,
- struct socket_address *my_addr,
- int datagram);
+ return NT_STATUS_OK;
+}
+
+typedef enum kdc_process_ret (*kdc_process_fn_t)(struct kdc_server *kdc,
+ TALLOC_CTX *mem_ctx,
+ DATA_BLOB *input,
+ DATA_BLOB *reply,
+ struct tsocket_address *peer_addr,
+ struct tsocket_address *my_addr,
+ int datagram);
/* hold information about one kdc socket */
struct kdc_socket {
- struct socket_context *sock;
struct kdc_server *kdc;
- struct fd_event *fde;
-
- /* a queue of outgoing replies that have been deferred */
- struct kdc_reply *send_queue;
-
+ struct tsocket_address *local_address;
kdc_process_fn_t process;
};
+
+struct kdc_tcp_call {
+ struct kdc_tcp_connection *kdc_conn;
+ DATA_BLOB in;
+ DATA_BLOB out;
+ uint8_t out_hdr[4];
+ struct iovec out_iov[2];
+};
+
/*
state of an open tcp connection
*/
struct stream_connection *conn;
/* the kdc_server the connection belongs to */
- struct kdc_server *kdc;
+ struct kdc_socket *kdc_socket;
- struct packet_context *packet;
+ struct tstream_context *tstream;
- kdc_process_fn_t process;
+ struct tevent_queue *send_queue;
};
-/*
- handle fd send events on a KDC socket
+
+static void kdc_tcp_terminate_connection(struct kdc_tcp_connection *kdcconn, const char *reason)
+{
+ stream_terminate_connection(kdcconn->conn, reason);
+}
+
+static void kdc_tcp_recv(struct stream_connection *conn, uint16_t flags)
+{
+ struct kdc_tcp_connection *kdcconn = talloc_get_type(conn->private_data,
+ struct kdc_tcp_connection);
+ /* this should never be triggered! */
+ kdc_tcp_terminate_connection(kdcconn, "kdc_tcp_recv: called");
+}
+
+static void kdc_tcp_send(struct stream_connection *conn, uint16_t flags)
+{
+ struct kdc_tcp_connection *kdcconn = talloc_get_type(conn->private_data,
+ struct kdc_tcp_connection);
+ /* this should never be triggered! */
+ kdc_tcp_terminate_connection(kdcconn, "kdc_tcp_send: called");
+}
+
+/**
+ Wrapper for krb5_kdc_process_krb5_request, converting to/from Samba
+ calling conventions
*/
-static void kdc_send_handler(struct kdc_socket *kdc_socket)
+
+static enum kdc_process_ret kdc_process(struct kdc_server *kdc,
+ TALLOC_CTX *mem_ctx,
+ DATA_BLOB *input,
+ DATA_BLOB *reply,
+ struct tsocket_address *peer_addr,
+ struct tsocket_address *my_addr,
+ int datagram_reply)
{
- while (kdc_socket->send_queue) {
- struct kdc_reply *rep = kdc_socket->send_queue;
- NTSTATUS status;
- size_t sendlen;
-
- status = socket_sendto(kdc_socket->sock, &rep->packet, &sendlen,
- rep->dest);
- if (NT_STATUS_EQUAL(status, STATUS_MORE_ENTRIES)) {
- break;
- }
- if (NT_STATUS_EQUAL(status, NT_STATUS_INVALID_BUFFER_SIZE)) {
- /* Replace with a krb err, response to big */
- }
-
- DLIST_REMOVE(kdc_socket->send_queue, rep);
- talloc_free(rep);
+ int ret;
+ char *pa;
+ struct sockaddr_storage ss;
+ krb5_data k5_reply;
+ krb5_data_zero(&k5_reply);
+
+ krb5_kdc_update_time(NULL);
+
+ ret = tsocket_address_bsd_sockaddr(peer_addr, (struct sockaddr *) &ss,
+ sizeof(struct sockaddr_storage));
+ if (ret < 0) {
+ return KDC_PROCESS_FAILED;
+ }
+ pa = tsocket_address_string(peer_addr, mem_ctx);
+ if (pa == NULL) {
+ return KDC_PROCESS_FAILED;
+ }
+
+ DEBUG(10,("Received KDC packet of length %lu from %s\n",
+ (long)input->length - 4, pa));
+
+ ret = krb5_kdc_process_krb5_request(kdc->smb_krb5_context->krb5_context,
+ kdc->config,
+ input->data, input->length,
+ &k5_reply,
+ pa,
+ (struct sockaddr *) &ss,
+ datagram_reply);
+ if (ret == -1) {
+ *reply = data_blob(NULL, 0);
+ return KDC_PROCESS_FAILED;
+ }
+
+ if (ret == HDB_ERR_NOT_FOUND_HERE) {
+ *reply = data_blob(NULL, 0);
+ return KDC_PROCESS_PROXY;
}
- if (kdc_socket->send_queue == NULL) {
- EVENT_FD_NOT_WRITEABLE(kdc_socket->fde);
+ if (k5_reply.length) {
+ *reply = data_blob_talloc(mem_ctx, k5_reply.data, k5_reply.length);
+ krb5_data_free(&k5_reply);
+ } else {
+ *reply = data_blob(NULL, 0);
}
+ return KDC_PROCESS_OK;
}
+static void kdc_tcp_call_proxy_done(struct tevent_req *subreq);
+static void kdc_tcp_call_writev_done(struct tevent_req *subreq);
-/*
- handle fd recv events on a KDC socket
-*/
-static void kdc_recv_handler(struct kdc_socket *kdc_socket)
+static void kdc_tcp_call_loop(struct tevent_req *subreq)
{
+ struct kdc_tcp_connection *kdc_conn = tevent_req_callback_data(subreq,
+ struct kdc_tcp_connection);
+ struct kdc_tcp_call *call;
NTSTATUS status;
- TALLOC_CTX *tmp_ctx = talloc_new(kdc_socket);
- DATA_BLOB blob;
- struct kdc_reply *rep;
- DATA_BLOB reply;
- size_t nread, dsize;
- struct socket_address *src;
- struct socket_address *my_addr;
- int ret;
+ enum kdc_process_ret ret;
+
+ call = talloc(kdc_conn, struct kdc_tcp_call);
+ if (call == NULL) {
+ kdc_tcp_terminate_connection(kdc_conn, "kdc_tcp_call_loop: "
+ "no memory for kdc_tcp_call");
+ return;
+ }
+ call->kdc_conn = kdc_conn;
- status = socket_pending(kdc_socket->sock, &dsize);
+ status = tstream_read_pdu_blob_recv(subreq,
+ call,
+ &call->in);
+ TALLOC_FREE(subreq);
if (!NT_STATUS_IS_OK(status)) {
- talloc_free(tmp_ctx);
+ const char *reason;
+
+ reason = talloc_asprintf(call, "kdc_tcp_call_loop: "
+ "tstream_read_pdu_blob_recv() - %s",
+ nt_errstr(status));
+ if (!reason) {
+ reason = nt_errstr(status);
+ }
+
+ kdc_tcp_terminate_connection(kdc_conn, reason);
return;
}
- blob = data_blob_talloc(tmp_ctx, NULL, dsize);
- if (blob.data == NULL) {
- /* hope this is a temporary low memory condition */
- talloc_free(tmp_ctx);
+ DEBUG(10,("Received krb5 TCP packet of length %lu from %s\n",
+ (long) call->in.length,
+ tsocket_address_string(kdc_conn->conn->remote_address, call)));
+
+ /* skip length header */
+ call->in.data +=4;
+ call->in.length -= 4;
+
+ /* Call krb5 */
+ ret = kdc_conn->kdc_socket->process(kdc_conn->kdc_socket->kdc,
+ call,
+ &call->in,
+ &call->out,
+ kdc_conn->conn->remote_address,
+ kdc_conn->conn->local_address,
+ 0 /* Stream */);
+ if (ret == KDC_PROCESS_FAILED) {
+ kdc_tcp_terminate_connection(kdc_conn,
+ "kdc_tcp_call_loop: process function failed");
return;
}
- status = socket_recvfrom(kdc_socket->sock, blob.data, blob.length, &nread,
- tmp_ctx, &src);
- if (!NT_STATUS_IS_OK(status)) {
- talloc_free(tmp_ctx);
+ if (ret == KDC_PROCESS_PROXY) {
+ uint16_t port;
+
+ if (!kdc_conn->kdc_socket->kdc->am_rodc) {
+ kdc_tcp_terminate_connection(kdc_conn,
+ "kdc_tcp_call_loop: proxying requested when not RODC");
+ return;
+ }
+ port = tsocket_address_inet_port(kdc_conn->conn->local_address);
+
+ subreq = kdc_tcp_proxy_send(call,
+ kdc_conn->conn->event.ctx,
+ kdc_conn->kdc_socket->kdc,
+ port,
+ call->in);
+ if (subreq == NULL) {
+ kdc_tcp_terminate_connection(kdc_conn,
+ "kdc_tcp_call_loop: kdc_tcp_proxy_send failed");
+ return;
+ }
+ tevent_req_set_callback(subreq, kdc_tcp_call_proxy_done, call);
return;
}
- blob.length = nread;
-
- DEBUG(10,("Received krb5 UDP packet of length %lu from %s:%u\n",
- (long)blob.length, src->addr, (uint16_t)src->port));
-
- my_addr = socket_get_my_addr(kdc_socket->sock, tmp_ctx);
- if (!my_addr) {
- talloc_free(tmp_ctx);
+
+ /* First add the length of the out buffer */
+ RSIVAL(call->out_hdr, 0, call->out.length);
+ call->out_iov[0].iov_base = (char *) call->out_hdr;
+ call->out_iov[0].iov_len = 4;
+
+ call->out_iov[1].iov_base = (char *) call->out.data;
+ call->out_iov[1].iov_len = call->out.length;
+
+ subreq = tstream_writev_queue_send(call,
+ kdc_conn->conn->event.ctx,
+ kdc_conn->tstream,
+ kdc_conn->send_queue,
+ call->out_iov, 2);
+ if (subreq == NULL) {
+ kdc_tcp_terminate_connection(kdc_conn, "kdc_tcp_call_loop: "
+ "no memory for tstream_writev_queue_send");
+ return;
+ }
+ tevent_req_set_callback(subreq, kdc_tcp_call_writev_done, call);
+
+ /*
+ * The krb5 tcp pdu's has the length as 4 byte (initial_read_size),
+ * packet_full_request_u32 provides the pdu length then.
+ */
+ subreq = tstream_read_pdu_blob_send(kdc_conn,
+ kdc_conn->conn->event.ctx,
+ kdc_conn->tstream,
+ 4, /* initial_read_size */
+ packet_full_request_u32,
+ kdc_conn);
+ if (subreq == NULL) {
+ kdc_tcp_terminate_connection(kdc_conn, "kdc_tcp_call_loop: "
+ "no memory for tstream_read_pdu_blob_send");
return;
}
+ tevent_req_set_callback(subreq, kdc_tcp_call_loop, kdc_conn);
+}
+static void kdc_tcp_call_proxy_done(struct tevent_req *subreq)
+{
+ struct kdc_tcp_call *call = tevent_req_callback_data(subreq,
+ struct kdc_tcp_call);
+ struct kdc_tcp_connection *kdc_conn = call->kdc_conn;
+ NTSTATUS status;
- /* Call krb5 */
- ret = kdc_socket->process(kdc_socket->kdc,
- tmp_ctx,
- &blob,
- &reply,
- src, my_addr,
- 1 /* Datagram */);
- if (!ret) {
- talloc_free(tmp_ctx);
- return;
+ status = kdc_tcp_proxy_recv(subreq, call, &call->out);
+ TALLOC_FREE(subreq);
+ if (!NT_STATUS_IS_OK(status)) {
+ /* generate an error packet */
+ status = kdc_proxy_unavailable_error(kdc_conn->kdc_socket->kdc,
+ call, &call->out);
}
- /* queue a pending reply */
- rep = talloc(kdc_socket, struct kdc_reply);
- if (rep == NULL) {
- talloc_free(tmp_ctx);
+ if (!NT_STATUS_IS_OK(status)) {
+ const char *reason;
+
+ reason = talloc_asprintf(call, "kdc_tcp_call_proxy_done: "
+ "kdc_proxy_unavailable_error - %s",
+ nt_errstr(status));
+ if (!reason) {
+ reason = "kdc_tcp_call_proxy_done: kdc_proxy_unavailable_error() failed";
+ }
+
+ kdc_tcp_terminate_connection(call->kdc_conn, reason);
return;
}
- rep->dest = talloc_steal(rep, src);
- rep->packet = reply;
- talloc_steal(rep, reply.data);
- if (rep->packet.data == NULL) {
- talloc_free(rep);
- talloc_free(tmp_ctx);
+ /* First add the length of the out buffer */
+ RSIVAL(call->out_hdr, 0, call->out.length);
+ call->out_iov[0].iov_base = (char *) call->out_hdr;
+ call->out_iov[0].iov_len = 4;
+
+ call->out_iov[1].iov_base = (char *) call->out.data;
+ call->out_iov[1].iov_len = call->out.length;
+
+ subreq = tstream_writev_queue_send(call,
+ kdc_conn->conn->event.ctx,
+ kdc_conn->tstream,
+ kdc_conn->send_queue,
+ call->out_iov, 2);
+ if (subreq == NULL) {
+ kdc_tcp_terminate_connection(kdc_conn, "kdc_tcp_call_loop: "
+ "no memory for tstream_writev_queue_send");
return;
}
-
- DLIST_ADD_END(kdc_socket->send_queue, rep, struct kdc_reply *);
- EVENT_FD_WRITEABLE(kdc_socket->fde);
- talloc_free(tmp_ctx);
+ tevent_req_set_callback(subreq, kdc_tcp_call_writev_done, call);
+
+ /*
+ * The krb5 tcp pdu's has the length as 4 byte (initial_read_size),
+ * packet_full_request_u32 provides the pdu length then.
+ */
+ subreq = tstream_read_pdu_blob_send(kdc_conn,
+ kdc_conn->conn->event.ctx,
+ kdc_conn->tstream,
+ 4, /* initial_read_size */
+ packet_full_request_u32,
+ kdc_conn);
+ if (subreq == NULL) {
+ kdc_tcp_terminate_connection(kdc_conn, "kdc_tcp_call_loop: "
+ "no memory for tstream_read_pdu_blob_send");
+ return;
+ }
+ tevent_req_set_callback(subreq, kdc_tcp_call_loop, kdc_conn);
}
-/*
- handle fd events on a KDC socket
-*/
-static void kdc_socket_handler(struct event_context *ev, struct fd_event *fde,
- uint16_t flags, void *private)
+static void kdc_tcp_call_writev_done(struct tevent_req *subreq)
{
- struct kdc_socket *kdc_socket = talloc_get_type(private, struct kdc_socket);
- if (flags & EVENT_FD_WRITE) {
- kdc_send_handler(kdc_socket);
- }
- if (flags & EVENT_FD_READ) {
- kdc_recv_handler(kdc_socket);
+ struct kdc_tcp_call *call = tevent_req_callback_data(subreq,
+ struct kdc_tcp_call);
+ int sys_errno;
+ int rc;
+
+ rc = tstream_writev_queue_recv(subreq, &sys_errno);
+ TALLOC_FREE(subreq);
+ if (rc == -1) {
+ const char *reason;
+
+ reason = talloc_asprintf(call, "kdc_tcp_call_writev_done: "
+ "tstream_writev_queue_recv() - %d:%s",
+ sys_errno, strerror(sys_errno));
+ if (!reason) {
+ reason = "kdc_tcp_call_writev_done: tstream_writev_queue_recv() failed";
+ }
+
+ kdc_tcp_terminate_connection(call->kdc_conn, reason);
+ return;
}
-}
-static void kdc_tcp_terminate_connection(struct kdc_tcp_connection *kdcconn, const char *reason)
-{
- stream_terminate_connection(kdcconn->conn, reason);
+ /* We don't care about errors */
+
+ talloc_free(call);
}
/*
- receive a full packet on a KDC connection
+ called when we get a new connection
*/
-static NTSTATUS kdc_tcp_recv(void *private, DATA_BLOB blob)
+static void kdc_tcp_accept(struct stream_connection *conn)
{
- struct kdc_tcp_connection *kdcconn = talloc_get_type(private,
- struct kdc_tcp_connection);
- NTSTATUS status = NT_STATUS_UNSUCCESSFUL;
- TALLOC_CTX *tmp_ctx = talloc_new(kdcconn);
- int ret;
- DATA_BLOB input, reply;
- struct socket_address *src_addr;
- struct socket_address *my_addr;
-
- talloc_steal(tmp_ctx, blob.data);
-
- src_addr = socket_get_peer_addr(kdcconn->conn->socket, tmp_ctx);
- if (!src_addr) {
- talloc_free(tmp_ctx);
- return NT_STATUS_NO_MEMORY;
+ struct kdc_socket *kdc_socket;
+ struct kdc_tcp_connection *kdc_conn;
+ struct tevent_req *subreq;
+ int rc;
+
+ kdc_conn = talloc_zero(conn, struct kdc_tcp_connection);
+ if (kdc_conn == NULL) {
+ stream_terminate_connection(conn,
+ "kdc_tcp_accept: out of memory");
+ return;
}
- my_addr = socket_get_my_addr(kdcconn->conn->socket, tmp_ctx);
- if (!my_addr) {
- talloc_free(tmp_ctx);
- return NT_STATUS_NO_MEMORY;
+ kdc_conn->send_queue = tevent_queue_create(conn, "kdc_tcp_accept");
+ if (kdc_conn->send_queue == NULL) {
+ stream_terminate_connection(conn,
+ "kdc_tcp_accept: out of memory");
+ return;
}
- /* Call krb5 */
- input = data_blob_const(blob.data + 4, blob.length - 4);
-
- ret = kdcconn->process(kdcconn->kdc,
- tmp_ctx,
- &input,
- &reply,
- src_addr,
- my_addr,
- 0 /* Not datagram */);
- if (!ret) {
- talloc_free(tmp_ctx);
- return NT_STATUS_INTERNAL_ERROR;
+ kdc_socket = talloc_get_type(conn->private_data, struct kdc_socket);
+
+ TALLOC_FREE(conn->event.fde);
+
+ rc = tstream_bsd_existing_socket(kdc_conn,
+ socket_get_fd(conn->socket),
+ &kdc_conn->tstream);
+ if (rc < 0) {
+ stream_terminate_connection(conn,
+ "kdc_tcp_accept: out of memory");
+ return;
}
- /* and now encode the reply */
- blob = data_blob_talloc(kdcconn, NULL, reply.length + 4);
- if (!blob.data) {
- talloc_free(tmp_ctx);
- return NT_STATUS_NO_MEMORY;
+ kdc_conn->conn = conn;
+ kdc_conn->kdc_socket = kdc_socket;
+ conn->private_data = kdc_conn;
+
+ /*
+ * The krb5 tcp pdu's has the length as 4 byte (initial_read_size),
+ * packet_full_request_u32 provides the pdu length then.
+ */
+ subreq = tstream_read_pdu_blob_send(kdc_conn,
+ kdc_conn->conn->event.ctx,
+ kdc_conn->tstream,
+ 4, /* initial_read_size */
+ packet_full_request_u32,
+ kdc_conn);
+ if (subreq == NULL) {
+ kdc_tcp_terminate_connection(kdc_conn, "kdc_tcp_accept: "
+ "no memory for tstream_read_pdu_blob_send");
+ return;
}
+ tevent_req_set_callback(subreq, kdc_tcp_call_loop, kdc_conn);
+}
- RSIVAL(blob.data, 0, reply.length);
- memcpy(blob.data + 4, reply.data, reply.length);
+static const struct stream_server_ops kdc_tcp_stream_ops = {
+ .name = "kdc_tcp",
+ .accept_connection = kdc_tcp_accept,
+ .recv_handler = kdc_tcp_recv,
+ .send_handler = kdc_tcp_send
+};
- status = packet_send(kdcconn->packet, blob);
- if (!NT_STATUS_IS_OK(status)) {
- talloc_free(tmp_ctx);
- return status;
- }
+/* hold information about one kdc/kpasswd udp socket */
+struct kdc_udp_socket {
+ struct kdc_socket *kdc_socket;
+ struct tdgram_context *dgram;
+ struct tevent_queue *send_queue;
+};
- /* the call isn't needed any more */
- talloc_free(tmp_ctx);
- return NT_STATUS_OK;
-}
+struct kdc_udp_call {
+ struct kdc_udp_socket *sock;
+ struct tsocket_address *src;
+ DATA_BLOB in;
+ DATA_BLOB out;
+};
-/*
- receive some data on a KDC connection
-*/
-static void kdc_tcp_recv_handler(struct stream_connection *conn, uint16_t flags)
-{
- struct kdc_tcp_connection *kdcconn = talloc_get_type(conn->private,
- struct kdc_tcp_connection);
- packet_recv(kdcconn->packet);
-}
+static void kdc_udp_call_proxy_done(struct tevent_req *subreq);
+static void kdc_udp_call_sendto_done(struct tevent_req *subreq);
-/*
- called on a tcp recv error
-*/
-static void kdc_tcp_recv_error(void *private, NTSTATUS status)
+static void kdc_udp_call_loop(struct tevent_req *subreq)
{
- struct kdc_tcp_connection *kdcconn = talloc_get_type(private, struct kdc_tcp_connection);
- kdc_tcp_terminate_connection(kdcconn, nt_errstr(status));
-}
+ struct kdc_udp_socket *sock = tevent_req_callback_data(subreq,
+ struct kdc_udp_socket);
+ struct kdc_udp_call *call;
+ uint8_t *buf;
+ ssize_t len;
+ int sys_errno;
+ enum kdc_process_ret ret;
+
+ call = talloc(sock, struct kdc_udp_call);
+ if (call == NULL) {
+ talloc_free(call);
+ goto done;
+ }
+ call->sock = sock;
+
+ len = tdgram_recvfrom_recv(subreq, &sys_errno,
+ call, &buf, &call->src);
+ TALLOC_FREE(subreq);
+ if (len == -1) {
+ talloc_free(call);
+ goto done;
+ }
-/*
- called when we can write to a connection
-*/
-static void kdc_tcp_send(struct stream_connection *conn, uint16_t flags)
-{
- struct kdc_tcp_connection *kdcconn = talloc_get_type(conn->private,
- struct kdc_tcp_connection);
- packet_queue_run(kdcconn->packet);
-}
+ call->in.data = buf;
+ call->in.length = len;
-/**
- Wrapper for krb5_kdc_process_krb5_request, converting to/from Samba
- calling conventions
-*/
+ DEBUG(10,("Received krb5 UDP packet of length %lu from %s\n",
+ (long)call->in.length,
+ tsocket_address_string(call->src, call)));
-static bool kdc_process(struct kdc_server *kdc,
- TALLOC_CTX *mem_ctx,
- DATA_BLOB *input,
- DATA_BLOB *reply,
- struct socket_address *peer_addr,
- struct socket_address *my_addr,
- int datagram_reply)
-{
- int ret;
- krb5_data k5_reply;
- krb5_data_zero(&k5_reply);
+ /* Call krb5 */
+ ret = sock->kdc_socket->process(sock->kdc_socket->kdc,
+ call,
+ &call->in,
+ &call->out,
+ call->src,
+ sock->kdc_socket->local_address,
+ 1 /* Datagram */);
+ if (ret == KDC_PROCESS_FAILED) {
+ talloc_free(call);
+ goto done;
+ }
- krb5_kdc_update_time(NULL);
+ if (ret == KDC_PROCESS_PROXY) {
+ uint16_t port;
- DEBUG(10,("Received KDC packet of length %lu from %s:%d\n",
- (long)input->length - 4, peer_addr->addr, peer_addr->port));
+ if (!sock->kdc_socket->kdc->am_rodc) {
+ DEBUG(0,("kdc_udp_call_loop: proxying requested when not RODC"));
+ talloc_free(call);
+ goto done;
+ }
- ret = krb5_kdc_process_krb5_request(kdc->smb_krb5_context->krb5_context,
- kdc->config,
- input->data, input->length,
- &k5_reply,
- peer_addr->addr,
- peer_addr->sockaddr,
- datagram_reply);
- if (ret == -1) {
- *reply = data_blob(NULL, 0);
- return false;
+ port = tsocket_address_inet_port(sock->kdc_socket->local_address);
+
+ subreq = kdc_udp_proxy_send(call,
+ sock->kdc_socket->kdc->task->event_ctx,
+ sock->kdc_socket->kdc,
+ port,
+ call->in);
+ if (subreq == NULL) {
+ talloc_free(call);
+ goto done;
+ }
+ tevent_req_set_callback(subreq, kdc_udp_call_proxy_done, call);
+ goto done;
}
- if (k5_reply.length) {
- *reply = data_blob_talloc(mem_ctx, k5_reply.data, k5_reply.length);
- krb5_free_data_contents(kdc->smb_krb5_context->krb5_context, &k5_reply);
- } else {
- *reply = data_blob(NULL, 0);
+
+ subreq = tdgram_sendto_queue_send(call,
+ sock->kdc_socket->kdc->task->event_ctx,
+ sock->dgram,
+ sock->send_queue,
+ call->out.data,
+ call->out.length,
+ call->src);
+ if (subreq == NULL) {
+ talloc_free(call);
+ goto done;
}
- return true;
+ tevent_req_set_callback(subreq, kdc_udp_call_sendto_done, call);
+
+done:
+ subreq = tdgram_recvfrom_send(sock,
+ sock->kdc_socket->kdc->task->event_ctx,
+ sock->dgram);
+ if (subreq == NULL) {
+ task_server_terminate(sock->kdc_socket->kdc->task,
+ "no memory for tdgram_recvfrom_send",
+ true);
+ return;
+ }
+ tevent_req_set_callback(subreq, kdc_udp_call_loop, sock);
}
-/*
- called when we get a new connection
-*/
-static void kdc_tcp_generic_accept(struct stream_connection *conn, kdc_process_fn_t process_fn)
+static void kdc_udp_call_proxy_done(struct tevent_req *subreq)
{
- struct kdc_server *kdc = talloc_get_type(conn->private, struct kdc_server);
- struct kdc_tcp_connection *kdcconn;
+ struct kdc_udp_call *call =
+ tevent_req_callback_data(subreq,
+ struct kdc_udp_call);
+ NTSTATUS status;
- kdcconn = talloc_zero(conn, struct kdc_tcp_connection);
- if (!kdcconn) {
- stream_terminate_connection(conn, "kdc_tcp_accept: out of memory");
+ status = kdc_udp_proxy_recv(subreq, call, &call->out);
+ TALLOC_FREE(subreq);
+ if (!NT_STATUS_IS_OK(status)) {
+ /* generate an error packet */
+ status = kdc_proxy_unavailable_error(call->sock->kdc_socket->kdc,
+ call, &call->out);
+ }
+
+ if (!NT_STATUS_IS_OK(status)) {
+ talloc_free(call);
return;
}
- kdcconn->conn = conn;
- kdcconn->kdc = kdc;
- kdcconn->process = process_fn;
- conn->private = kdcconn;
- kdcconn->packet = packet_init(kdcconn);
- if (kdcconn->packet == NULL) {
- kdc_tcp_terminate_connection(kdcconn, "kdc_tcp_accept: out of memory");
+ subreq = tdgram_sendto_queue_send(call,
+ call->sock->kdc_socket->kdc->task->event_ctx,
+ call->sock->dgram,
+ call->sock->send_queue,
+ call->out.data,
+ call->out.length,
+ call->src);
+ if (subreq == NULL) {
+ talloc_free(call);
return;
}
- packet_set_private(kdcconn->packet, kdcconn);
- packet_set_socket(kdcconn->packet, conn->socket);
- packet_set_callback(kdcconn->packet, kdc_tcp_recv);
- packet_set_full_request(kdcconn->packet, packet_full_request_u32);
- packet_set_error_handler(kdcconn->packet, kdc_tcp_recv_error);
- packet_set_event_context(kdcconn->packet, conn->event.ctx);
- packet_set_fde(kdcconn->packet, conn->event.fde);
- packet_set_serialise(kdcconn->packet);
+
+ tevent_req_set_callback(subreq, kdc_udp_call_sendto_done, call);
}
-static void kdc_tcp_accept(struct stream_connection *conn)
+static void kdc_udp_call_sendto_done(struct tevent_req *subreq)
{
- kdc_tcp_generic_accept(conn, kdc_process);
-}
+ struct kdc_udp_call *call = tevent_req_callback_data(subreq,
+ struct kdc_udp_call);
+ ssize_t ret;
+ int sys_errno;
-static const struct stream_server_ops kdc_tcp_stream_ops = {
- .name = "kdc_tcp",
- .accept_connection = kdc_tcp_accept,
- .recv_handler = kdc_tcp_recv_handler,
- .send_handler = kdc_tcp_send
-};
+ ret = tdgram_sendto_queue_recv(subreq, &sys_errno);
-static void kpasswdd_tcp_accept(struct stream_connection *conn)
-{
- kdc_tcp_generic_accept(conn, kpasswdd_process);
-}
+ /* We don't care about errors */
-static const struct stream_server_ops kpasswdd_tcp_stream_ops = {
- .name = "kpasswdd_tcp",
- .accept_connection = kpasswdd_tcp_accept,
- .recv_handler = kdc_tcp_recv_handler,
- .send_handler = kdc_tcp_send
-};
+ talloc_free(call);
+}
/*
start listening on the given address
*/
-static NTSTATUS kdc_add_socket(struct kdc_server *kdc, const char *address,
- uint16_t kdc_port, uint16_t kpasswd_port)
+static NTSTATUS kdc_add_socket(struct kdc_server *kdc,
+ const struct model_ops *model_ops,
+ const char *name,
+ const char *address,
+ uint16_t port,
+ kdc_process_fn_t process,
+ bool udp_only)
{
- const struct model_ops *model_ops;
- struct kdc_socket *kdc_socket;
- struct kdc_socket *kpasswd_socket;
- struct socket_address *kdc_address, *kpasswd_address;
+ struct kdc_socket *kdc_socket;
+ struct kdc_udp_socket *kdc_udp_socket;
+ struct tevent_req *udpsubreq;
NTSTATUS status;
+ int ret;
kdc_socket = talloc(kdc, struct kdc_socket);
NT_STATUS_HAVE_NO_MEMORY(kdc_socket);
- kpasswd_socket = talloc(kdc, struct kdc_socket);
- NT_STATUS_HAVE_NO_MEMORY(kpasswd_socket);
+ kdc_socket->kdc = kdc;
+ kdc_socket->process = process;
- status = socket_create("ip", SOCKET_TYPE_DGRAM, &kdc_socket->sock, 0);
- if (!NT_STATUS_IS_OK(status)) {
- talloc_free(kdc_socket);
+ ret = tsocket_address_inet_from_strings(kdc_socket, "ip",
+ address, port,
+ &kdc_socket->local_address);
+ if (ret != 0) {
+ status = map_nt_error_from_unix(errno);
return status;
}
- status = socket_create("ip", SOCKET_TYPE_DGRAM, &kpasswd_socket->sock, 0);
- if (!NT_STATUS_IS_OK(status)) {
- talloc_free(kpasswd_socket);
- return status;
+ if (!udp_only) {
+ status = stream_setup_socket(kdc->task,
+ kdc->task->event_ctx,
+ kdc->task->lp_ctx,
+ model_ops,
+ &kdc_tcp_stream_ops,
+ "ip", address, &port,
+ lpcfg_socket_options(kdc->task->lp_ctx),
+ kdc_socket);
+ if (!NT_STATUS_IS_OK(status)) {
+ DEBUG(0,("Failed to bind to %s:%u TCP - %s\n",
+ address, port, nt_errstr(status)));
+ talloc_free(kdc_socket);
+ return status;
+ }
}
- kdc_socket->kdc = kdc;
- kdc_socket->send_queue = NULL;
- kdc_socket->process = kdc_process;
-
- talloc_steal(kdc_socket, kdc_socket->sock);
-
- kdc_socket->fde = event_add_fd(kdc->task->event_ctx, kdc,
- socket_get_fd(kdc_socket->sock), EVENT_FD_READ,
- kdc_socket_handler, kdc_socket);
+ kdc_udp_socket = talloc(kdc_socket, struct kdc_udp_socket);
+ NT_STATUS_HAVE_NO_MEMORY(kdc_udp_socket);
- kdc_address = socket_address_from_strings(kdc_socket, kdc_socket->sock->backend_name,
- address, kdc_port);
- NT_STATUS_HAVE_NO_MEMORY(kdc_address);
+ kdc_udp_socket->kdc_socket = kdc_socket;
- status = socket_listen(kdc_socket->sock, kdc_address, 0, 0);
- if (!NT_STATUS_IS_OK(status)) {
- DEBUG(0,("Failed to bind to %s:%d UDP for kdc - %s\n",
- address, kdc_port, nt_errstr(status)));
- talloc_free(kdc_socket);
+ ret = tdgram_inet_udp_socket(kdc_socket->local_address,
+ NULL,
+ kdc_udp_socket,
+ &kdc_udp_socket->dgram);
+ if (ret != 0) {
+ status = map_nt_error_from_unix(errno);
+ DEBUG(0,("Failed to bind to %s:%u UDP - %s\n",
+ address, port, nt_errstr(status)));
return status;
}
- kpasswd_socket->kdc = kdc;
- kpasswd_socket->send_queue = NULL;
- kpasswd_socket->process = kpasswdd_process;
+ kdc_udp_socket->send_queue = tevent_queue_create(kdc_udp_socket,
+ "kdc_udp_send_queue");
+ NT_STATUS_HAVE_NO_MEMORY(kdc_udp_socket->send_queue);
- talloc_steal(kpasswd_socket, kpasswd_socket->sock);
+ udpsubreq = tdgram_recvfrom_send(kdc_udp_socket,
+ kdc->task->event_ctx,
+ kdc_udp_socket->dgram);
+ NT_STATUS_HAVE_NO_MEMORY(udpsubreq);
+ tevent_req_set_callback(udpsubreq, kdc_udp_call_loop, kdc_udp_socket);
- kpasswd_socket->fde = event_add_fd(kdc->task->event_ctx, kdc,
- socket_get_fd(kpasswd_socket->sock), EVENT_FD_READ,
- kdc_socket_handler, kpasswd_socket);
-
- kpasswd_address = socket_address_from_strings(kpasswd_socket, kpasswd_socket->sock->backend_name,
- address, kpasswd_port);
- NT_STATUS_HAVE_NO_MEMORY(kpasswd_address);
+ return NT_STATUS_OK;
+}
- status = socket_listen(kpasswd_socket->sock, kpasswd_address, 0, 0);
- if (!NT_STATUS_IS_OK(status)) {
- DEBUG(0,("Failed to bind to %s:%d UDP for kpasswd - %s\n",
- address, kpasswd_port, nt_errstr(status)));
- talloc_free(kpasswd_socket);
- return status;
- }
+
+/*
+ setup our listening sockets on the configured network interfaces
+*/
+static NTSTATUS kdc_startup_interfaces(struct kdc_server *kdc, struct loadparm_context *lp_ctx,
+ struct interface *ifaces)
+{
+ const struct model_ops *model_ops;
+ int num_interfaces;
+ TALLOC_CTX *tmp_ctx = talloc_new(kdc);
+ NTSTATUS status;
+ int i;
+ uint16_t kdc_port = lpcfg_krb5_port(lp_ctx);
+ uint16_t kpasswd_port = lpcfg_kpasswd_port(lp_ctx);
+ bool done_wildcard = false;
/* within the kdc task we want to be a single process, so
ask for the single process model ops and pass these to the
stream_setup_socket() call. */
- model_ops = process_model_byname("single");
+ model_ops = process_model_startup("single");
if (!model_ops) {
DEBUG(0,("Can't find 'single' process model_ops\n"));
- talloc_free(kdc_socket);
return NT_STATUS_INTERNAL_ERROR;
}
- status = stream_setup_socket(kdc->task->event_ctx,
- kdc->task->lp_ctx,
- model_ops,
- &kdc_tcp_stream_ops,
- "ip", address, &kdc_port,
- lp_socket_options(kdc->task->lp_ctx),
- kdc);
- if (!NT_STATUS_IS_OK(status)) {
- DEBUG(0,("Failed to bind to %s:%u TCP - %s\n",
- address, kdc_port, nt_errstr(status)));
- talloc_free(kdc_socket);
- return 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 (!lpcfg_bind_interfaces_only(lp_ctx)) {
+ if (kdc_port) {
+ status = kdc_add_socket(kdc, model_ops,
+ "kdc", "0.0.0.0", kdc_port,
+ kdc_process, false);
+ NT_STATUS_NOT_OK_RETURN(status);
+ }
+
+ if (kpasswd_port) {
+ status = kdc_add_socket(kdc, model_ops,
+ "kpasswd", "0.0.0.0", kpasswd_port,
+ kpasswdd_process, false);
+ NT_STATUS_NOT_OK_RETURN(status);
+ }
+ done_wildcard = true;
}
- status = stream_setup_socket(kdc->task->event_ctx,
- kdc->task->lp_ctx,
- model_ops,
- &kpasswdd_tcp_stream_ops,
- "ip", address, &kpasswd_port,
- lp_socket_options(kdc->task->lp_ctx),
- kdc);
- if (!NT_STATUS_IS_OK(status)) {
- DEBUG(0,("Failed to bind to %s:%u TCP - %s\n",
- address, kpasswd_port, nt_errstr(status)));
- talloc_free(kdc_socket);
- return status;
+ for (i=0; i<num_interfaces; i++) {
+ const char *address = talloc_strdup(tmp_ctx, iface_n_ip(ifaces, i));
+
+ if (kdc_port) {
+ status = kdc_add_socket(kdc, model_ops,
+ "kdc", address, kdc_port,
+ kdc_process, done_wildcard);
+ NT_STATUS_NOT_OK_RETURN(status);
+ }
+
+ if (kpasswd_port) {
+ status = kdc_add_socket(kdc, model_ops,
+ "kpasswd", address, kpasswd_port,
+ kpasswdd_process, done_wildcard);
+ NT_STATUS_NOT_OK_RETURN(status);
+ }
}
+ talloc_free(tmp_ctx);
+
return NT_STATUS_OK;
}
-/*
- setup our listening sockets on the configured network interfaces
-*/
-static NTSTATUS kdc_startup_interfaces(struct kdc_server *kdc, struct loadparm_context *lp_ctx,
- struct interface *ifaces)
+static NTSTATUS kdc_check_generic_kerberos(struct irpc_message *msg,
+ struct kdc_check_generic_kerberos *r)
{
- int num_interfaces;
- TALLOC_CTX *tmp_ctx = talloc_new(kdc);
- NTSTATUS status;
- int i;
+ struct PAC_Validate pac_validate;
+ DATA_BLOB srv_sig;
+ struct PAC_SIGNATURE_DATA kdc_sig;
+ struct kdc_server *kdc = talloc_get_type(msg->private_data, struct kdc_server);
+ enum ndr_err_code ndr_err;
+ krb5_enctype etype;
+ int ret;
+ hdb_entry_ex ent;
+ krb5_principal principal;
+ krb5_keyblock keyblock;
+ Key *key;
+
+ /* There is no reply to this request */
+ r->out.generic_reply = data_blob(NULL, 0);
+
+ ndr_err = ndr_pull_struct_blob(&r->in.generic_request, msg, &pac_validate,
+ (ndr_pull_flags_fn_t)ndr_pull_PAC_Validate);
+ if (!NDR_ERR_CODE_IS_SUCCESS(ndr_err)) {
+ return NT_STATUS_INVALID_PARAMETER;
+ }
- num_interfaces = iface_count(ifaces);
+ if (pac_validate.MessageType != 3) {
+ /* We don't implement any other message types - such as certificate validation - yet */
+ return NT_STATUS_INVALID_PARAMETER;
+ }
+
+ if (pac_validate.ChecksumAndSignature.length != (pac_validate.ChecksumLength + pac_validate.SignatureLength)
+ || pac_validate.ChecksumAndSignature.length < pac_validate.ChecksumLength
+ || pac_validate.ChecksumAndSignature.length < pac_validate.SignatureLength ) {
+ return NT_STATUS_INVALID_PARAMETER;
+ }
+
+ srv_sig = data_blob_const(pac_validate.ChecksumAndSignature.data,
+ pac_validate.ChecksumLength);
+
+ if (pac_validate.SignatureType == CKSUMTYPE_HMAC_MD5) {
+ etype = ETYPE_ARCFOUR_HMAC_MD5;
+ } else {
+ ret = krb5_cksumtype_to_enctype(kdc->smb_krb5_context->krb5_context, pac_validate.SignatureType,
+ &etype);
+ if (ret != 0) {
+ return NT_STATUS_LOGON_FAILURE;
+ }
+ }
+
+ ret = krb5_make_principal(kdc->smb_krb5_context->krb5_context, &principal,
+ lpcfg_realm(kdc->task->lp_ctx),
+ "krbtgt", lpcfg_realm(kdc->task->lp_ctx),
+ NULL);
+
+ if (ret != 0) {
+ return NT_STATUS_NO_MEMORY;
+ }
+
+ ret = kdc->config->db[0]->hdb_fetch_kvno(kdc->smb_krb5_context->krb5_context,
+ kdc->config->db[0],
+ principal,
+ HDB_F_GET_KRBTGT | HDB_F_DECRYPT,
+ 0,
+ &ent);
- for (i=0; i<num_interfaces; i++) {
- const char *address = talloc_strdup(tmp_ctx, iface_n_ip(ifaces, i));
- status = kdc_add_socket(kdc, address, lp_krb5_port(lp_ctx),
- lp_kpasswd_port(lp_ctx));
- NT_STATUS_NOT_OK_RETURN(status);
+ if (ret != 0) {
+ hdb_free_entry(kdc->smb_krb5_context->krb5_context, &ent);
+ krb5_free_principal(kdc->smb_krb5_context->krb5_context, principal);
+
+ return NT_STATUS_LOGON_FAILURE;
}
- talloc_free(tmp_ctx);
+ ret = hdb_enctype2key(kdc->smb_krb5_context->krb5_context, &ent.entry, etype, &key);
+
+ if (ret != 0) {
+ hdb_free_entry(kdc->smb_krb5_context->krb5_context, &ent);
+ krb5_free_principal(kdc->smb_krb5_context->krb5_context, principal);
+ return NT_STATUS_LOGON_FAILURE;
+ }
+
+ keyblock = key->key;
+
+ kdc_sig.type = pac_validate.SignatureType;
+ kdc_sig.signature = data_blob_const(&pac_validate.ChecksumAndSignature.data[pac_validate.ChecksumLength],
+ pac_validate.SignatureLength);
+ ret = check_pac_checksum(msg, srv_sig, &kdc_sig,
+ kdc->smb_krb5_context->krb5_context, &keyblock);
+
+ hdb_free_entry(kdc->smb_krb5_context->krb5_context, &ent);
+ krb5_free_principal(kdc->smb_krb5_context->krb5_context, principal);
+
+ if (ret != 0) {
+ return NT_STATUS_LOGON_FAILURE;
+ }
return NT_STATUS_OK;
}
-static struct krb5plugin_windc_ftable windc_plugin_table = {
- .minor_version = KRB5_WINDC_PLUGING_MINOR,
- .init = samba_kdc_plugin_init,
- .fini = samba_kdc_plugin_fini,
- .pac_generate = samba_kdc_get_pac,
- .pac_verify = samba_kdc_reget_pac,
- .client_access = samba_kdc_check_client_access,
-};
-
/*
startup the kdc task
NTSTATUS status;
krb5_error_code ret;
struct interface *ifaces;
+ int ldb_ret;
- switch (lp_server_role(task->lp_ctx)) {
+ switch (lpcfg_server_role(task->lp_ctx)) {
case ROLE_STANDALONE:
- task_server_terminate(task, "kdc: no KDC required in standalone configuration");
+ task_server_terminate(task, "kdc: no KDC required in standalone configuration", false);
return;
case ROLE_DOMAIN_MEMBER:
- task_server_terminate(task, "kdc: no KDC required in member server configuration");
+ task_server_terminate(task, "kdc: no KDC required in member server configuration", false);
return;
case ROLE_DOMAIN_CONTROLLER:
/* Yes, we want a KDC */
break;
}
- load_interfaces(task, lp_interfaces(task->lp_ctx), &ifaces);
+ load_interfaces(task, lpcfg_interfaces(task->lp_ctx), &ifaces);
if (iface_count(ifaces) == 0) {
- task_server_terminate(task, "kdc: no network interfaces configured");
+ task_server_terminate(task, "kdc: no network interfaces configured", false);
return;
}
task_server_set_title(task, "task[kdc]");
- kdc = talloc(task, struct kdc_server);
+ kdc = talloc_zero(task, struct kdc_server);
if (kdc == NULL) {
- task_server_terminate(task, "kdc: out of memory");
+ task_server_terminate(task, "kdc: out of memory", true);
return;
}
kdc->task = task;
+
+ /* get a samdb connection */
+ kdc->samdb = samdb_connect(kdc, kdc->task->event_ctx, kdc->task->lp_ctx,
+ system_session(kdc->task->lp_ctx), 0);
+ if (!kdc->samdb) {
+ DEBUG(1,("kdc_task_init: unable to connect to samdb\n"));
+ task_server_terminate(task, "kdc: krb5_init_context samdb connect failed", true);
+ return;
+ }
+
+ ldb_ret = samdb_rodc(kdc->samdb, &kdc->am_rodc);
+ if (ldb_ret != LDB_SUCCESS) {
+ DEBUG(1, ("kdc_task_init: Cannot determine if we are an RODC: %s\n",
+ ldb_errstring(kdc->samdb)));
+ task_server_terminate(task, "kdc: krb5_init_context samdb RODC connect failed", true);
+ return;
+ }
+
+ kdc->proxy_timeout = lpcfg_parm_int(kdc->task->lp_ctx, NULL, "kdc", "proxy timeout", 5);
+
initialize_krb5_error_table();
ret = smb_krb5_init_context(kdc, task->event_ctx, task->lp_ctx, &kdc->smb_krb5_context);
if (ret) {
- DEBUG(1,("kdc_task_init: krb5_init_context failed (%s)\n",
+ DEBUG(1,("kdc_task_init: krb5_init_context failed (%s)\n",
error_message(ret)));
- task_server_terminate(task, "kdc: krb5_init_context failed");
- return;
+ task_server_terminate(task, "kdc: krb5_init_context failed", true);
+ return;
}
krb5_add_et_list(kdc->smb_krb5_context->krb5_context, initialize_hdb_error_table_r);
- ret = krb5_kdc_get_config(kdc->smb_krb5_context->krb5_context,
+ ret = krb5_kdc_get_config(kdc->smb_krb5_context->krb5_context,
&kdc->config);
if(ret) {
- task_server_terminate(task, "kdc: failed to get KDC configuration");
+ task_server_terminate(task, "kdc: failed to get KDC configuration", true);
return;
}
kdc->config->logf = kdc->smb_krb5_context->logf;
kdc->config->db = talloc(kdc, struct HDB *);
if (!kdc->config->db) {
- task_server_terminate(task, "kdc: out of memory");
+ task_server_terminate(task, "kdc: out of memory", true);
return;
}
kdc->config->num_db = 1;
-
- status = kdc_hdb_ldb_create(kdc, task->event_ctx, task->lp_ctx,
- kdc->smb_krb5_context->krb5_context,
- &kdc->config->db[0], NULL);
+
+ /* Register hdb-samba4 hooks for use as a keytab */
+
+ kdc->base_ctx = talloc_zero(kdc, struct samba_kdc_base_context);
+ if (!kdc->base_ctx) {
+ task_server_terminate(task, "kdc: out of memory", true);
+ return;
+ }
+
+ kdc->base_ctx->ev_ctx = task->event_ctx;
+ kdc->base_ctx->lp_ctx = task->lp_ctx;
+
+ status = hdb_samba4_create_kdc(kdc->base_ctx,
+ kdc->smb_krb5_context->krb5_context,
+ &kdc->config->db[0]);
if (!NT_STATUS_IS_OK(status)) {
- task_server_terminate(task, "kdc: hdb_ldb_create (setup KDC database) failed");
- return;
+ task_server_terminate(task, "kdc: hdb_samba4_create_kdc (setup KDC database) failed", true);
+ return;
+ }
+
+ ret = krb5_plugin_register(kdc->smb_krb5_context->krb5_context,
+ PLUGIN_TYPE_DATA, "hdb",
+ &hdb_samba4);
+ if(ret) {
+ task_server_terminate(task, "kdc: failed to register hdb plugin", true);
+ return;
}
ret = krb5_kt_register(kdc->smb_krb5_context->krb5_context, &hdb_kt_ops);
if(ret) {
- task_server_terminate(task, "kdc: failed to register hdb keytab");
+ task_server_terminate(task, "kdc: failed to register keytab plugin", true);
return;
}
- /* Registar WinDC hooks */
- ret = krb5_plugin_register(kdc->smb_krb5_context->krb5_context,
+ /* Register WinDC hooks */
+ ret = krb5_plugin_register(kdc->smb_krb5_context->krb5_context,
PLUGIN_TYPE_DATA, "windc",
&windc_plugin_table);
if(ret) {
- task_server_terminate(task, "kdc: failed to register hdb keytab");
+ task_server_terminate(task, "kdc: failed to register windc plugin", true);
return;
}
- krb5_kdc_windc_init(kdc->smb_krb5_context->krb5_context);
+ ret = krb5_kdc_windc_init(kdc->smb_krb5_context->krb5_context);
- kdc_mem_ctx = kdc->smb_krb5_context;
- kdc_lp_ctx = task->lp_ctx;
+ if(ret) {
+ task_server_terminate(task, "kdc: failed to init windc plugin", true);
+ return;
+ }
+
+ ret = krb5_kdc_pkinit_config(kdc->smb_krb5_context->krb5_context, kdc->config);
+
+ if(ret) {
+ task_server_terminate(task, "kdc: failed to init kdc pkinit subsystem", true);
+ return;
+ }
/* start listening on the configured network interfaces */
status = kdc_startup_interfaces(kdc, task->lp_ctx, ifaces);
if (!NT_STATUS_IS_OK(status)) {
- task_server_terminate(task, "kdc failed to setup interfaces");
+ task_server_terminate(task, "kdc failed to setup interfaces", true);
+ return;
+ }
+
+ status = IRPC_REGISTER(task->msg_ctx, irpc, KDC_CHECK_GENERIC_KERBEROS,
+ kdc_check_generic_kerberos, kdc);
+ if (!NT_STATUS_IS_OK(status)) {
+ task_server_terminate(task, "kdc failed to setup monitoring", true);
return;
}
git.samba.org / kai / samba.git / blobdiff