#include "lib/socket/netif.h"
#include "param/param.h"
#include "kdc/kdc-glue.h"
+#include "kdc/pac-glue.h"
#include "dsdb/samdb/samdb.h"
#include "auth/session.h"
+#include "libds/common/roles.h"
+
+NTSTATUS server_service_kdc_init(void);
extern struct krb5plugin_windc_ftable windc_plugin_table;
-extern struct hdb_method hdb_samba4;
static NTSTATUS kdc_proxy_unavailable_error(struct kdc_server *kdc,
TALLOC_CTX *mem_ctx,
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 kdc_server *kdc;
+ 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 kdc_tcp_connection {
+ /* stream connection we belong to */
+ struct stream_connection *conn;
+
+ /* the kdc_server the connection belongs to */
+ struct kdc_socket *kdc_socket;
+
+ struct tstream_context *tstream;
+
+ 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);
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);
static void kdc_tcp_call_loop(struct tevent_req *subreq)
}
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;
}
- kdc_tcp_proxy(kdc_conn->kdc_socket->kdc, kdc_conn, call,
- tsocket_address_inet_port(kdc_conn->conn->local_address));
- goto done;
+ 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;
+ }
+
+ /* 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;
+
+ 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);
+ }
+
+ 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;
}
/* First add the length of the out buffer */
}
tevent_req_set_callback(subreq, kdc_tcp_call_writev_done, call);
-done:
/*
* The krb5 tcp pdu's has the length as 4 byte (initial_read_size),
* packet_full_request_u32 provides the pdu length then.
.send_handler = kdc_tcp_send
};
+/* 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;
+};
+
+struct kdc_udp_call {
+ struct kdc_udp_socket *sock;
+ struct tsocket_address *src;
+ DATA_BLOB in;
+ DATA_BLOB out;
+};
+
+static void kdc_udp_call_proxy_done(struct tevent_req *subreq);
static void kdc_udp_call_sendto_done(struct tevent_req *subreq);
static void kdc_udp_call_loop(struct tevent_req *subreq)
talloc_free(call);
goto done;
}
+ call->sock = sock;
len = tdgram_recvfrom_recv(subreq, &sys_errno,
call, &buf, &call->src);
}
if (ret == KDC_PROCESS_PROXY) {
+ uint16_t port;
+
if (!sock->kdc_socket->kdc->am_rodc) {
DEBUG(0,("kdc_udp_call_loop: proxying requested when not RODC"));
talloc_free(call);
goto done;
}
- kdc_udp_proxy(sock->kdc_socket->kdc, sock, call,
- tsocket_address_inet_port(sock->kdc_socket->local_address));
+
+ 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;
}
tevent_req_set_callback(subreq, kdc_udp_call_loop, sock);
}
+static void kdc_udp_call_proxy_done(struct tevent_req *subreq)
+{
+ struct kdc_udp_call *call =
+ tevent_req_callback_data(subreq,
+ struct kdc_udp_call);
+ NTSTATUS status;
+
+ 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;
+ }
+
+ 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;
+ }
+
+ tevent_req_set_callback(subreq, kdc_udp_call_sendto_done, call);
+}
+
static void kdc_udp_call_sendto_done(struct tevent_req *subreq)
{
struct kdc_udp_call *call = tevent_req_callback_data(subreq,
struct kdc_udp_call);
- ssize_t ret;
int sys_errno;
- ret = tdgram_sendto_queue_recv(subreq, &sys_errno);
+ tdgram_sendto_queue_recv(subreq, &sys_errno);
/* We don't care about errors */
address, port,
&kdc_socket->local_address);
if (ret != 0) {
- status = map_nt_error_from_unix(errno);
+ status = map_nt_error_from_unix_common(errno);
return status;
}
kdc_udp_socket,
&kdc_udp_socket->dgram);
if (ret != 0) {
- status = map_nt_error_from_unix(errno);
+ status = map_nt_error_from_unix_common(errno);
DEBUG(0,("Failed to bind to %s:%u UDP - %s\n",
address, port, nt_errstr(status)));
return status;
return NT_STATUS_INTERNAL_ERROR;
}
- num_interfaces = iface_count(ifaces);
+ num_interfaces = iface_list_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);
+ int num_binds = 0;
+ char **wcard = iface_list_wildcard(kdc);
+ NT_STATUS_HAVE_NO_MEMORY(wcard);
+ for (i=0; wcard[i]; i++) {
+ if (kdc_port) {
+ status = kdc_add_socket(kdc, model_ops,
+ "kdc", wcard[i], kdc_port,
+ kdc_process, false);
+ if (NT_STATUS_IS_OK(status)) {
+ num_binds++;
+ }
+ }
+
+ if (kpasswd_port) {
+ status = kdc_add_socket(kdc, model_ops,
+ "kpasswd", wcard[i], kpasswd_port,
+ kpasswdd_process, false);
+ if (NT_STATUS_IS_OK(status)) {
+ num_binds++;
+ }
+ }
}
-
- 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);
+ talloc_free(wcard);
+ if (num_binds == 0) {
+ return NT_STATUS_INVALID_PARAMETER_MIX;
}
done_wildcard = true;
}
for (i=0; i<num_interfaces; i++) {
- const char *address = talloc_strdup(tmp_ctx, iface_n_ip(ifaces, i));
+ const char *address = talloc_strdup(tmp_ctx, iface_list_n_ip(ifaces, i));
if (kdc_port) {
status = kdc_add_socket(kdc, model_ops,
return NT_STATUS_OK;
}
-
static NTSTATUS kdc_check_generic_kerberos(struct irpc_message *msg,
struct kdc_check_generic_kerberos *r)
{
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);
return NT_STATUS_INVALID_PARAMETER;
}
- if (pac_validate.MessageType != 3) {
+ if (pac_validate.MessageType != NETLOGON_GENERIC_KRB5_PAC_VALIDATE) {
/* We don't implement any other message types - such as certificate validation - yet */
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),
return NT_STATUS_LOGON_FAILURE;
}
- 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);
+
+ ret = kdc_check_pac(kdc->smb_krb5_context->krb5_context, srv_sig, &kdc_sig, &ent);
hdb_free_entry(kdc->smb_krb5_context->krb5_context, &ent);
krb5_free_principal(kdc->smb_krb5_context->krb5_context, principal);
case ROLE_DOMAIN_MEMBER:
task_server_terminate(task, "kdc: no KDC required in member server configuration", false);
return;
- case ROLE_DOMAIN_CONTROLLER:
+ case ROLE_DOMAIN_PDC:
+ case ROLE_DOMAIN_BDC:
+ task_server_terminate(task, "Cannot start KDC as a 'classic Samba' DC", true);
+ return;
+ case ROLE_ACTIVE_DIRECTORY_DC:
/* Yes, we want a KDC */
break;
}
- load_interfaces(task, lpcfg_interfaces(task->lp_ctx), &ifaces);
+ load_interface_list(task, task->lp_ctx, &ifaces);
- if (iface_count(ifaces) == 0) {
+ if (iface_list_count(ifaces) == 0) {
task_server_terminate(task, "kdc: no network interfaces configured", false);
return;
}
initialize_krb5_error_table();
- ret = smb_krb5_init_context(kdc, task->event_ctx, task->lp_ctx, &kdc->smb_krb5_context);
+ ret = smb_krb5_init_context(kdc, task->lp_ctx, &kdc->smb_krb5_context);
if (ret) {
DEBUG(1,("kdc_task_init: krb5_init_context failed (%s)\n",
error_message(ret)));
return;
}
- kdc->config->logf = kdc->smb_krb5_context->logf;
+ kdc->config->logf = (krb5_log_facility *)kdc->smb_krb5_context->pvt_log_data;
kdc->config->db = talloc(kdc, struct HDB *);
if (!kdc->config->db) {
task_server_terminate(task, "kdc: out of memory", true);
}
kdc->config->num_db = 1;
+ /*
+ * This restores the behavior before
+ * commit 255e3e18e00f717d99f3bc57c8a8895ff624f3c3
+ * s4:heimdal: import lorikeet-heimdal-201107150856
+ * (commit 48936803fae4a2fb362c79365d31f420c917b85b)
+ *
+ * as_use_strongest_session_key,preauth_use_strongest_session_key
+ * and tgs_use_strongest_session_key are input to the
+ * _kdc_find_etype() function. The old bahavior is in
+ * the use_strongest_session_key=FALSE code path.
+ * (The only remaining difference in _kdc_find_etype()
+ * is the is_preauth parameter.)
+ *
+ * The old behavior in the _kdc_get_preferred_key()
+ * function is use_strongest_server_key=TRUE.
+ */
+ kdc->config->as_use_strongest_session_key = false;
+ kdc->config->preauth_use_strongest_session_key = false;
+ kdc->config->tgs_use_strongest_session_key = false;
+ kdc->config->use_strongest_server_key = true;
+
/* Register hdb-samba4 hooks for use as a keytab */
kdc->base_ctx = talloc_zero(kdc, struct samba_kdc_base_context);
ret = krb5_plugin_register(kdc->smb_krb5_context->krb5_context,
PLUGIN_TYPE_DATA, "hdb",
- &hdb_samba4);
+ &hdb_samba4_interface);
if(ret) {
task_server_terminate(task, "kdc: failed to register hdb plugin", true);
return;
git.samba.org / obnox / samba / samba-obnox.git / blobdiff