-/*
+/*
Unix SMB/CIFS implementation.
KDC Server startup
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 "lib/events/events.h"
#include "lib/socket/socket.h"
#include "lib/tsocket/tsocket.h"
+#include "libcli/util/tstream.h"
#include "system/network.h"
#include "../lib/util/dlinklist.h"
#include "lib/messaging/irpc.h"
#include "librpc/gen_ndr/ndr_misc.h"
-/* Disgusting hack to get a mem_ctx and lp_ctx into the hdb plugin, when
- * used as a keytab */
-TALLOC_CTX *hdb_samba4_mem_ctx;
-struct tevent_context *hdb_samba4_ev_ctx;
-struct loadparm_context *hdb_samba4_lp_ctx;
+extern struct krb5plugin_windc_ftable windc_plugin_table;
+extern struct hdb_method hdb_samba4;
typedef bool (*kdc_process_fn_t)(struct kdc_server *kdc,
- TALLOC_CTX *mem_ctx,
- DATA_BLOB *input,
+ TALLOC_CTX *mem_ctx,
+ DATA_BLOB *input,
DATA_BLOB *reply,
struct tsocket_address *peer_addr,
struct tsocket_address *my_addr,
/* the kdc_server the connection belongs to */
struct kdc_socket *kdc_socket;
- struct tsocket_address *local_address;
- struct tsocket_address *remote_address;
+ struct tstream_context *tstream;
- struct packet_context *packet;
+ struct tevent_queue *send_queue;
};
static void kdc_tcp_terminate_connection(struct kdc_tcp_connection *kdcconn, const char *reason)
stream_terminate_connection(kdcconn->conn, reason);
}
-/*
- receive a full packet on a KDC connection
-*/
-static NTSTATUS kdc_tcp_recv(void *private_data, DATA_BLOB blob)
-{
- struct kdc_tcp_connection *kdcconn = talloc_get_type(private_data,
- struct kdc_tcp_connection);
- NTSTATUS status = NT_STATUS_UNSUCCESSFUL;
- TALLOC_CTX *tmp_ctx = talloc_new(kdcconn);
- int ret;
- DATA_BLOB input, reply;
- talloc_steal(tmp_ctx, blob.data);
-
- /* Call krb5 */
- input = data_blob_const(blob.data + 4, blob.length - 4);
-
- ret = kdcconn->kdc_socket->process(kdcconn->kdc_socket->kdc,
- tmp_ctx,
- &input,
- &reply,
- kdcconn->remote_address,
- kdcconn->local_address,
- 0 /* Not datagram */);
- if (!ret) {
- talloc_free(tmp_ctx);
- return NT_STATUS_INTERNAL_ERROR;
- }
-
- /* 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;
- }
-
- RSIVAL(blob.data, 0, reply.length);
- memcpy(blob.data + 4, reply.data, reply.length);
-
- status = packet_send(kdcconn->packet, blob);
- if (!NT_STATUS_IS_OK(status)) {
- talloc_free(tmp_ctx);
- return status;
- }
-
- /* the call isn't needed any more */
- talloc_free(tmp_ctx);
- return NT_STATUS_OK;
-}
-
-/*
- receive some data on a KDC connection
-*/
-static void kdc_tcp_recv_handler(struct stream_connection *conn, uint16_t flags)
+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);
- packet_recv(kdcconn->packet);
+ /* this should never be triggered! */
+ kdc_tcp_terminate_connection(kdcconn, "kdc_tcp_recv: called");
}
-/*
- called on a tcp recv error
-*/
-static void kdc_tcp_recv_error(void *private_data, NTSTATUS status)
-{
- struct kdc_tcp_connection *kdcconn = talloc_get_type(private_data,
- struct kdc_tcp_connection);
- kdc_tcp_terminate_connection(kdcconn, nt_errstr(status));
-}
-
-/*
- 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_data,
struct kdc_tcp_connection);
- packet_queue_run(kdcconn->packet);
+ /* this should never be triggered! */
+ kdc_tcp_terminate_connection(kdcconn, "kdc_tcp_send: called");
}
/**
*/
static bool kdc_process(struct kdc_server *kdc,
- TALLOC_CTX *mem_ctx,
- DATA_BLOB *input,
+ TALLOC_CTX *mem_ctx,
+ DATA_BLOB *input,
DATA_BLOB *reply,
struct tsocket_address *peer_addr,
struct tsocket_address *my_addr,
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,
+ ret = krb5_kdc_process_krb5_request(kdc->smb_krb5_context->krb5_context,
kdc->config,
input->data, input->length,
&k5_reply,
*reply = data_blob_talloc(mem_ctx, k5_reply.data, k5_reply.length);
krb5_data_free(&k5_reply);
} else {
- *reply = data_blob(NULL, 0);
+ *reply = data_blob(NULL, 0);
}
return true;
}
-/*
- called when we get a new connection
-*/
-static void kdc_tcp_accept(struct stream_connection *conn)
+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];
+};
+
+static void kdc_tcp_call_writev_done(struct tevent_req *subreq);
+
+static void kdc_tcp_call_loop(struct tevent_req *subreq)
{
- struct kdc_socket *kdc_socket = talloc_get_type(conn->private_data, struct kdc_socket);
- struct kdc_tcp_connection *kdcconn;
- struct socket_address *src_addr;
- struct socket_address *my_addr;
- int ret;
+ struct kdc_tcp_connection *kdc_conn = tevent_req_callback_data(subreq,
+ struct kdc_tcp_connection);
+ struct kdc_tcp_call *call;
+ NTSTATUS status;
+ bool ok;
- kdcconn = talloc_zero(conn, struct kdc_tcp_connection);
- if (!kdcconn) {
- stream_terminate_connection(conn, "kdc_tcp_accept: out of memory");
+ 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;
}
- kdcconn->conn = conn;
- kdcconn->kdc_socket = kdc_socket;
- conn->private_data = kdcconn;
+ call->kdc_conn = kdc_conn;
+
+ status = tstream_read_pdu_blob_recv(subreq,
+ call,
+ &call->in);
+ TALLOC_FREE(subreq);
+ if (!NT_STATUS_IS_OK(status)) {
+ 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);
+ }
- src_addr = socket_get_peer_addr(kdcconn->conn->socket, kdcconn);
- if (!src_addr) {
- kdc_tcp_terminate_connection(kdcconn, "kdc_tcp_accept: out of memory");
+ kdc_tcp_terminate_connection(kdc_conn, reason);
return;
}
- my_addr = socket_get_my_addr(kdcconn->conn->socket, kdcconn);
- if (!my_addr) {
- kdc_tcp_terminate_connection(kdcconn, "kdc_tcp_accept: out of memory");
+ 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 */
+ ok = 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 (!ok) {
+ kdc_tcp_terminate_connection(kdc_conn,
+ "kdc_tcp_call_loop: process function failed");
return;
}
- ret = tsocket_address_bsd_from_sockaddr(kdcconn,
- src_addr->sockaddr,
- src_addr->sockaddrlen,
- &kdcconn->remote_address);
- if (ret < 0) {
- kdc_tcp_terminate_connection(kdcconn, "kdc_tcp_accept: out of memory");
+ /* First add the length of the out buffer */
+ RSIVAL(call->out_hdr, 0, call->out.length);
+ call->out_iov[0].iov_base = call->out_hdr;
+ call->out_iov[0].iov_len = 4;
+
+ call->out_iov[1].iov_base = 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);
+}
- ret = tsocket_address_bsd_from_sockaddr(kdcconn,
- my_addr->sockaddr,
- my_addr->sockaddrlen,
- &kdcconn->local_address);
- if (ret < 0) {
- kdc_tcp_terminate_connection(kdcconn, "kdc_tcp_accept: out of memory");
+static void kdc_tcp_call_writev_done(struct tevent_req *subreq)
+{
+ 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;
+ }
+
+ /* We don't care about errors */
+
+ talloc_free(call);
+}
+
+/*
+ called when we get a new connection
+*/
+static void kdc_tcp_accept(struct stream_connection *conn)
+{
+ 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;
+ }
+
+ 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;
}
- TALLOC_FREE(src_addr);
- TALLOC_FREE(my_addr);
+ 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;
+ }
- kdcconn->packet = packet_init(kdcconn);
- if (kdcconn->packet == NULL) {
- kdc_tcp_terminate_connection(kdcconn, "kdc_tcp_accept: out of 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;
}
- 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_tcp_call_loop, kdc_conn);
}
static const struct stream_server_ops kdc_tcp_stream_ops = {
.name = "kdc_tcp",
.accept_connection = kdc_tcp_accept,
- .recv_handler = kdc_tcp_recv_handler,
+ .recv_handler = kdc_tcp_recv,
.send_handler = kdc_tcp_send
};
uint8_t *buf;
ssize_t len;
int sys_errno;
- int ret;
+ bool ok;
call = talloc(sock, struct kdc_udp_call);
if (call == NULL) {
tsocket_address_string(call->src, call)));
/* 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) {
+ ok = sock->kdc_socket->process(sock->kdc_socket->kdc,
+ call,
+ &call->in,
+ &call->out,
+ call->src,
+ sock->kdc_socket->local_address,
+ 1 /* Datagram */);
+ if (!ok) {
talloc_free(call);
goto done;
}
return status;
}
- status = stream_setup_socket(kdc->task->event_ctx,
+ status = stream_setup_socket(kdc->task->event_ctx,
kdc->task->lp_ctx,
- model_ops,
- &kdc_tcp_stream_ops,
- "ip", address, &port,
- lp_socket_options(kdc->task->lp_ctx),
+ model_ops,
+ &kdc_tcp_stream_ops,
+ "ip", address, &port,
+ lp_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",
}
num_interfaces = iface_count(ifaces);
-
+
for (i=0; i<num_interfaces; i++) {
const char *address = talloc_strdup(tmp_ctx, iface_n_ip(ifaces, i));
uint16_t kdc_port = lp_krb5_port(lp_ctx);
}
-static NTSTATUS kdc_check_generic_kerberos(struct irpc_message *msg,
+static NTSTATUS kdc_check_generic_kerberos(struct irpc_message *msg,
struct kdc_check_generic_kerberos *r)
{
struct PAC_Validate pac_validate;
/* 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,
- lp_iconv_convenience(kdc->task->lp_ctx),
- &pac_validate,
+ 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;
}
-
+
if (pac_validate.MessageType != 3) {
/* We don't implement any other message types - such as certificate validation - yet */
return NT_STATUS_INVALID_PARAMETER;
|| pac_validate.ChecksumAndSignature.length < pac_validate.SignatureLength ) {
return NT_STATUS_INVALID_PARAMETER;
}
-
- srv_sig = data_blob_const(pac_validate.ChecksumAndSignature.data,
+
+ 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_make_principal(kdc->smb_krb5_context->krb5_context, &principal,
+ ret = krb5_make_principal(kdc->smb_krb5_context->krb5_context, &principal,
lp_realm(kdc->task->lp_ctx),
- "krbtgt", lp_realm(kdc->task->lp_ctx),
+ "krbtgt", lp_realm(kdc->task->lp_ctx),
NULL);
if (ret != 0) {
return NT_STATUS_NO_MEMORY;
}
- ret = kdc->config->db[0]->hdb_fetch(kdc->smb_krb5_context->krb5_context,
+ ret = kdc->config->db[0]->hdb_fetch(kdc->smb_krb5_context->krb5_context,
kdc->config->db[0],
principal,
HDB_F_GET_KRBTGT | HDB_F_DECRYPT,
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;
}
-
+
ret = hdb_enctype2key(kdc->smb_krb5_context->krb5_context, &ent.entry, etype, &key);
if (ret != 0) {
}
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,
+ 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);
if (ret != 0) {
return NT_STATUS_LOGON_FAILURE;
}
-
+
return NT_STATUS_OK;
}
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", true);
- return;
+ 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", true);
return;
}
-
+
kdc->config->logf = kdc->smb_krb5_context->logf;
kdc->config->db = talloc(kdc, struct HDB *);
if (!kdc->config->db) {
return;
}
kdc->config->num_db = 1;
-
- status = hdb_samba4_create_kdc(kdc, task->event_ctx, task->lp_ctx,
- kdc->smb_krb5_context->krb5_context,
- &kdc->config->db[0]);
- if (!NT_STATUS_IS_OK(status)) {
- task_server_terminate(task, "kdc: hdb_samba4_create_kdc (setup KDC database) failed", true);
- return;
- }
/* Register hdb-samba4 hooks for use as a keytab */
- kdc->hdb_samba4_context = talloc(kdc, struct hdb_samba4_context);
- if (!kdc->hdb_samba4_context) {
+ 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;
+ return;
}
- kdc->hdb_samba4_context->ev_ctx = task->event_ctx;
- kdc->hdb_samba4_context->lp_ctx = task->lp_ctx;
+ 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_samba4_create_kdc (setup KDC database) failed", true);
+ return;
+ }
- ret = krb5_plugin_register(kdc->smb_krb5_context->krb5_context,
+ 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 keytab", true);
+ 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", true);
+ 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", true);
+ task_server_terminate(task, "kdc: failed to register windc plugin", true);
return;
}
return;
}
- status = IRPC_REGISTER(task->msg_ctx, irpc, KDC_CHECK_GENERIC_KERBEROS,
+ 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, "nbtd failed to setup monitoring", true);
git.samba.org / bbaumbach / samba-autobuild / .git / blobdiff