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/*
Unix SMB/CIFS implementation.
Main winbindd samba3 server routines
Copyright (C) Stefan Metzmacher 2005
Copyright (C) Volker Lendecke 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 "nsswitch/winbindd_nss.h"
#include "winbind/wb_server.h"
#include "smbd/service_stream.h"
#include "lib/stream/packet.h"
/*
work out if a packet is complete for protocols that use a 32 bit network byte
order length
*/
NTSTATUS wbsrv_samba3_packet_full_request(void *private, DATA_BLOB blob, size_t *size)
{
uint32_t *len;
if (blob.length < 4) {
return STATUS_MORE_ENTRIES;
}
len = (uint32_t *)blob.data;
*size = (*len);
if (*size > blob.length) {
return STATUS_MORE_ENTRIES;
}
return NT_STATUS_OK;
}
NTSTATUS wbsrv_samba3_pull_request(DATA_BLOB blob, struct wbsrv_connection *wbconn,
struct wbsrv_samba3_call **_call)
{
struct wbsrv_samba3_call *call;
if (blob.length != sizeof(call->request)) {
DEBUG(0,("wbsrv_samba3_pull_request: invalid blob length %lu should be %lu\n"
" make sure you use the correct winbind client tools!\n",
(long)blob.length, (long)sizeof(call->request)));
return NT_STATUS_INVALID_PARAMETER;
}
call = talloc_zero(wbconn, struct wbsrv_samba3_call);
NT_STATUS_HAVE_NO_MEMORY(call);
/* the packet layout is the same as the in memory layout of the request, so just copy it */
memcpy(&call->request, blob.data, sizeof(call->request));
call->wbconn = wbconn;
call->event_ctx = call->wbconn->conn->event.ctx;
*_call = call;
return NT_STATUS_OK;
}
NTSTATUS wbsrv_samba3_handle_call(struct wbsrv_samba3_call *s3call)
{
DEBUG(10, ("Got winbind samba3 request %d\n", s3call->request.cmd));
s3call->response.length = sizeof(s3call->response);
switch(s3call->request.cmd) {
case WINBINDD_INTERFACE_VERSION:
return wbsrv_samba3_interface_version(s3call);
#if 0
case WINBINDD_CHECK_MACHACC:
return wbsrv_samba3_check_machacc(s3call);
#endif
case WINBINDD_PING:
return wbsrv_samba3_ping(s3call);
case WINBINDD_INFO:
return wbsrv_samba3_info(s3call);
case WINBINDD_DOMAIN_NAME:
return wbsrv_samba3_domain_name(s3call);
case WINBINDD_NETBIOS_NAME:
return wbsrv_samba3_netbios_name(s3call);
case WINBINDD_PRIV_PIPE_DIR:
return wbsrv_samba3_priv_pipe_dir(s3call);
case WINBINDD_LOOKUPNAME:
return wbsrv_samba3_lookupname(s3call);
case WINBINDD_LOOKUPSID:
return wbsrv_samba3_lookupsid(s3call);
case WINBINDD_PAM_AUTH:
return wbsrv_samba3_pam_auth(s3call);
case WINBINDD_PAM_AUTH_CRAP:
return wbsrv_samba3_pam_auth_crap(s3call);
case WINBINDD_GETDCNAME:
return wbsrv_samba3_getdcname(s3call);
case WINBINDD_GETUSERDOMGROUPS:
return wbsrv_samba3_userdomgroups(s3call);
case WINBINDD_GETUSERSIDS:
return wbsrv_samba3_usersids(s3call);
case WINBINDD_LIST_TRUSTDOM:
return wbsrv_samba3_list_trustdom(s3call);
/* Unimplemented commands */
case WINBINDD_GETPWNAM:
case WINBINDD_GETPWUID:
case WINBINDD_GETGRNAM:
case WINBINDD_GETGRGID:
case WINBINDD_GETGROUPS:
case WINBINDD_SETPWENT:
case WINBINDD_ENDPWENT:
case WINBINDD_GETPWENT:
case WINBINDD_SETGRENT:
case WINBINDD_ENDGRENT:
case WINBINDD_GETGRENT:
case WINBINDD_PAM_CHAUTHTOK:
case WINBINDD_LIST_USERS:
case WINBINDD_LIST_GROUPS:
case WINBINDD_SID_TO_UID:
case WINBINDD_SID_TO_GID:
case WINBINDD_UID_TO_SID:
case WINBINDD_GID_TO_SID:
case WINBINDD_ALLOCATE_RID:
case WINBINDD_ALLOCATE_RID_AND_GID:
case WINBINDD_CHECK_MACHACC:
case WINBINDD_DOMAIN_INFO:
case WINBINDD_SHOW_SEQUENCE:
case WINBINDD_WINS_BYIP:
case WINBINDD_WINS_BYNAME:
case WINBINDD_GETGRLST:
case WINBINDD_INIT_CONNECTION:
case WINBINDD_DUAL_SID2UID:
case WINBINDD_DUAL_SID2GID:
case WINBINDD_DUAL_IDMAPSET:
case WINBINDD_DUAL_UID2NAME:
case WINBINDD_DUAL_NAME2UID:
case WINBINDD_DUAL_GID2NAME:
case WINBINDD_DUAL_NAME2GID:
case WINBINDD_DUAL_USERINFO:
case WINBINDD_DUAL_GETSIDALIASES:
case WINBINDD_NUM_CMDS:
DEBUG(10, ("Unimplemented winbind samba3 request %d\n",
s3call->request.cmd));
break;
}
s3call->response.result = WINBINDD_ERROR;
return NT_STATUS_OK;
}
static NTSTATUS wbsrv_samba3_push_reply(struct wbsrv_samba3_call *call, TALLOC_CTX *mem_ctx, DATA_BLOB *_blob)
{
DATA_BLOB blob;
uint8_t *extra_data;
size_t extra_data_len = 0;
extra_data = call->response.extra_data;
if (extra_data) {
extra_data_len = call->response.length -
sizeof(call->response);
}
blob = data_blob_talloc(mem_ctx, NULL, call->response.length);
NT_STATUS_HAVE_NO_MEMORY(blob.data);
/* don't push real pointer values into sockets */
if (extra_data) {
call->response.extra_data = (void *)0xFFFFFFFF;
}
memcpy(blob.data, &call->response, sizeof(call->response));
/* set back the pointer */
call->response.extra_data = extra_data;
if (extra_data) {
memcpy(blob.data + sizeof(call->response), extra_data, extra_data_len);
}
*_blob = blob;
return NT_STATUS_OK;
}
/*
* queue a wbsrv_call reply on a wbsrv_connection
* NOTE: that this implies talloc_free(call),
* use talloc_reference(call) if you need it after
* calling wbsrv_queue_reply
*/
NTSTATUS wbsrv_samba3_send_reply(struct wbsrv_samba3_call *call)
{
struct wbsrv_connection *wbconn = call->wbconn;
DATA_BLOB rep;
NTSTATUS status;
status = wbsrv_samba3_push_reply(call, call, &rep);
NT_STATUS_NOT_OK_RETURN(status);
status = packet_send(call->wbconn->packet, rep);
talloc_free(call);
if (!NT_STATUS_IS_OK(status)) {
wbsrv_terminate_connection(wbconn,
"failed to packet_send winbindd reply");
return status;
}
/* the call isn't needed any more */
return status;
}
NTSTATUS wbsrv_samba3_process(void *private, DATA_BLOB blob)
{
NTSTATUS status;
struct wbsrv_connection *wbconn = talloc_get_type(private,
struct wbsrv_connection);
struct wbsrv_samba3_call *call;
status = wbsrv_samba3_pull_request(blob, wbconn, &call);
if (!NT_STATUS_IS_OK(status)) {
return status;
}
status = wbsrv_samba3_handle_call(call);
if (!NT_STATUS_IS_OK(status)) {
talloc_free(call);
return status;
}
if (call->flags & WBSRV_CALL_FLAGS_REPLY_ASYNC) {
return NT_STATUS_OK;
}
status = wbsrv_samba3_send_reply(call);
return status;
}
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