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samba-mirror/source4/winbind/wb_samba3_protocol.c
2010-08-14 02:10:33 +02:00

332 lines
8.4 KiB
C

/*
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 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 "winbind/wb_server.h"
#include "smbd/service_stream.h"
#include "lib/stream/packet.h"
#include "lib/tsocket/tsocket.h"
/*
work out if a packet is complete for protocols that use a 32 bit host byte
order length
*/
NTSTATUS wbsrv_samba3_packet_full_request(void *private_data, 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(struct wbsrv_samba3_call *call)
{
if (call->in.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)call->in.length, (long)sizeof(*call->request)));
return NT_STATUS_INVALID_PARAMETER;
}
call->request = talloc_zero(call, struct winbindd_request);
NT_STATUS_HAVE_NO_MEMORY(call->request);
/* the packet layout is the same as the in memory layout of the request, so just copy it */
memcpy(call->request, call->in.data, sizeof(*call->request));
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 = talloc_zero(s3call, struct winbindd_response);
NT_STATUS_HAVE_NO_MEMORY(s3call->request);
s3call->response->length = sizeof(*s3call->response);
switch(s3call->request->cmd) {
case WINBINDD_INTERFACE_VERSION:
return wbsrv_samba3_interface_version(s3call);
case WINBINDD_CHECK_MACHACC:
return wbsrv_samba3_check_machacc(s3call);
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_GROUPS:
return wbsrv_samba3_list_groups(s3call);
case WINBINDD_LIST_TRUSTDOM:
return wbsrv_samba3_list_trustdom(s3call);
case WINBINDD_LIST_USERS:
return wbsrv_samba3_list_users(s3call);
case WINBINDD_GETPWNAM:
return wbsrv_samba3_getpwnam(s3call);
case WINBINDD_GETPWUID:
return wbsrv_samba3_getpwuid(s3call);
case WINBINDD_SETPWENT:
return wbsrv_samba3_setpwent(s3call);
case WINBINDD_GETPWENT:
return wbsrv_samba3_getpwent(s3call);
case WINBINDD_ENDPWENT:
return wbsrv_samba3_endpwent(s3call);
case WINBINDD_GETGRNAM:
return wbsrv_samba3_getgrnam(s3call);
case WINBINDD_GETGRGID:
return wbsrv_samba3_getgrgid(s3call);
case WINBINDD_GETGROUPS:
return wbsrv_samba3_getgroups(s3call);
case WINBINDD_SETGRENT:
return wbsrv_samba3_setgrent(s3call);
case WINBINDD_GETGRENT:
return wbsrv_samba3_getgrent(s3call);
case WINBINDD_ENDGRENT:
return wbsrv_samba3_endgrent(s3call);
case WINBINDD_SID_TO_UID:
case WINBINDD_DUAL_SID2UID:
return wbsrv_samba3_sid2uid(s3call);
case WINBINDD_SID_TO_GID:
case WINBINDD_DUAL_SID2GID:
return wbsrv_samba3_sid2gid(s3call);
case WINBINDD_UID_TO_SID:
case WINBINDD_DUAL_UID2SID:
return wbsrv_samba3_uid2sid(s3call);
case WINBINDD_GID_TO_SID:
case WINBINDD_DUAL_GID2SID:
return wbsrv_samba3_gid2sid(s3call);
case WINBINDD_DOMAIN_INFO:
return wbsrv_samba3_domain_info(s3call);
case WINBINDD_PAM_LOGOFF:
return wbsrv_samba3_pam_logoff(s3call);
/* Unimplemented commands */
case WINBINDD_GETPWSID:
case WINBINDD_PAM_CHAUTHTOK:
case WINBINDD_PAM_CHNG_PSWD_AUTH_CRAP:
case WINBINDD_LOOKUPRIDS:
case WINBINDD_SIDS_TO_XIDS:
case WINBINDD_ALLOCATE_UID:
case WINBINDD_ALLOCATE_GID:
case WINBINDD_REMOVE_MAPPING:
case WINBINDD_SHOW_SEQUENCE:
case WINBINDD_WINS_BYIP:
case WINBINDD_WINS_BYNAME:
case WINBINDD_GETGRLST:
case WINBINDD_GETSIDALIASES:
case WINBINDD_DSGETDCNAME:
case WINBINDD_INIT_CONNECTION:
case WINBINDD_DUAL_SIDS2XIDS:
case WINBINDD_DUAL_REMOVE_MAPPING:
case WINBINDD_DUAL_USERINFO:
case WINBINDD_DUAL_GETSIDALIASES:
case WINBINDD_DUAL_NDRCMD:
case WINBINDD_CCACHE_NTLMAUTH:
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)
{
uint8_t *extra_data;
size_t extra_data_len = 0;
extra_data = (uint8_t *)call->response->extra_data.data;
if (extra_data != NULL) {
extra_data_len = call->response->length -
sizeof(*call->response);
}
call->out = data_blob_talloc(call, NULL, call->response->length);
NT_STATUS_HAVE_NO_MEMORY(call->out.data);
/* don't push real pointer values into sockets */
if (extra_data) {
call->response->extra_data.data = (void *)0xFFFFFFFF;
}
memcpy(call->out.data, call->response, sizeof(*call->response));
/* set back the pointer */
call->response->extra_data.data = extra_data;
if (extra_data) {
memcpy(call->out.data + sizeof(*call->response),
extra_data,
extra_data_len);
}
return NT_STATUS_OK;
}
static void wbsrv_samba3_send_reply_done(struct tevent_req *subreq);
/*
* 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 *wbsrv_conn = call->wbconn;
struct tevent_req *subreq;
NTSTATUS status;
status = wbsrv_samba3_push_reply(call);
NT_STATUS_NOT_OK_RETURN(status);
call->out_iov[0].iov_base = (char *) call->out.data;
call->out_iov[0].iov_len = call->out.length;
subreq = tstream_writev_queue_send(call,
wbsrv_conn->conn->event.ctx,
wbsrv_conn->tstream,
wbsrv_conn->send_queue,
call->out_iov, 1);
if (subreq == NULL) {
wbsrv_terminate_connection(wbsrv_conn, "wbsrv_call_loop: "
"no memory for tstream_writev_queue_send");
return NT_STATUS_NO_MEMORY;
}
tevent_req_set_callback(subreq, wbsrv_samba3_send_reply_done, call);
return status;
}
static void wbsrv_samba3_send_reply_done(struct tevent_req *subreq)
{
struct wbsrv_samba3_call *call = tevent_req_callback_data(subreq,
struct wbsrv_samba3_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, "wbsrv_samba3_send_reply_done: "
"tstream_writev_queue_recv() - %d:%s",
sys_errno, strerror(sys_errno));
if (reason == NULL) {
reason = "wbsrv_samba3_send_reply_done: "
"tstream_writev_queue_recv() failed";
}
wbsrv_terminate_connection(call->wbconn, reason);
return;
}
talloc_free(call);
}
NTSTATUS wbsrv_samba3_process(struct wbsrv_samba3_call *call)
{
NTSTATUS status;
status = wbsrv_samba3_pull_request(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;
}