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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 "smbd/service_stream.h"
#include "nsswitch/winbind_nss_config.h"
#include "nsswitch/winbindd_nss.h"
#include "winbind/wb_server.h"
#include "winbind/wb_samba3_protocol.h"
#include "winbind/wb_async_helpers.h"
#include "librpc/gen_ndr/nbt.h"
#include "libcli/raw/libcliraw.h"
#include "libcli/composite/composite.h"
#include "libcli/smb_composite/smb_composite.h"
#include "include/version.h"
#include "lib/events/events.h"
#include "librpc/gen_ndr/ndr_netlogon.h"
NTSTATUS wbsrv_samba3_interface_version(struct wbsrv_samba3_call *s3call)
{
s3call->response.result = WINBINDD_OK;
s3call->response.data.interface_version = WINBIND_INTERFACE_VERSION;
return NT_STATUS_OK;
}
NTSTATUS wbsrv_samba3_info(struct wbsrv_samba3_call *s3call)
{
s3call->response.result = WINBINDD_OK;
s3call->response.data.info.winbind_separator = *lp_winbind_separator();
WBSRV_SAMBA3_SET_STRING(s3call->response.data.info.samba_version, SAMBA_VERSION_STRING);
return NT_STATUS_OK;
}
NTSTATUS wbsrv_samba3_domain_name(struct wbsrv_samba3_call *s3call)
{
s3call->response.result = WINBINDD_OK;
WBSRV_SAMBA3_SET_STRING(s3call->response.data.domain_name, lp_workgroup());
return NT_STATUS_OK;
}
NTSTATUS wbsrv_samba3_netbios_name(struct wbsrv_samba3_call *s3call)
{
s3call->response.result = WINBINDD_OK;
WBSRV_SAMBA3_SET_STRING(s3call->response.data.netbios_name, lp_netbios_name());
return NT_STATUS_OK;
}
NTSTATUS wbsrv_samba3_priv_pipe_dir(struct wbsrv_samba3_call *s3call)
{
s3call->response.result = WINBINDD_OK;
s3call->response.extra_data = smbd_tmp_path(s3call,
WINBINDD_SAMBA3_PRIVILEGED_SOCKET);
NT_STATUS_HAVE_NO_MEMORY(s3call->response.extra_data);
return NT_STATUS_OK;
}
NTSTATUS wbsrv_samba3_ping(struct wbsrv_samba3_call *s3call)
{
s3call->response.result = WINBINDD_OK;
return NT_STATUS_OK;
}
static void checkmachacc_recv_creds(struct composite_context *ctx);
NTSTATUS wbsrv_samba3_check_machacc(struct wbsrv_samba3_call *s3call)
{
struct composite_context *ctx;
DEBUG(5, ("wbsrv_samba3_check_machacc called\n"));
ctx = wb_get_netlogon_pipe_send(s3call->call);
NT_STATUS_HAVE_NO_MEMORY(ctx);
ctx->async.fn = checkmachacc_recv_creds;
ctx->async.private_data = s3call;
s3call->call->flags |= WBSRV_CALL_FLAGS_REPLY_ASYNC;
return NT_STATUS_OK;
}
static void checkmachacc_recv_creds(struct composite_context *ctx)
{
struct wbsrv_samba3_call *s3call =
talloc_get_type(ctx->async.private_data,
struct wbsrv_samba3_call);
NTSTATUS status;
status = wb_get_netlogon_pipe_recv(ctx);
if (NT_STATUS_IS_OK(status)) {
s3call->response.result = WINBINDD_OK;
} else {
struct winbindd_response *resp = &s3call->response;
resp->result = WINBINDD_ERROR;
WBSRV_SAMBA3_SET_STRING(resp->data.auth.nt_status_string,
nt_errstr(status));
WBSRV_SAMBA3_SET_STRING(resp->data.auth.error_string,
nt_errstr(status));
resp->data.auth.pam_error = nt_status_to_pam(status);
}
status = wbsrv_send_reply(s3call->call);
if (!NT_STATUS_IS_OK(status)) {
wbsrv_terminate_connection(s3call->call->wbconn,
"wbsrv_queue_reply() failed");
return;
}
}
static void lookupname_recv_sid(struct composite_context *ctx);
NTSTATUS wbsrv_samba3_lookupname(struct wbsrv_samba3_call *s3call)
{
struct composite_context *ctx;
DEBUG(5, ("wbsrv_samba3_lookupname called\n"));
ctx = wb_cmd_lookupname_send(s3call->call,
s3call->request.data.name.name);
NT_STATUS_HAVE_NO_MEMORY(ctx);
/* setup the callbacks */
ctx->async.fn = lookupname_recv_sid;
ctx->async.private_data = s3call;
s3call->call->flags |= WBSRV_CALL_FLAGS_REPLY_ASYNC;
return NT_STATUS_OK;
}
static void lookupname_recv_sid(struct composite_context *ctx)
{
struct wbsrv_samba3_call *s3call =
talloc_get_type(ctx->async.private_data,
struct wbsrv_samba3_call);
struct wb_sid_object *sid;
NTSTATUS status;
status = wb_cmd_lookupname_recv(ctx, s3call, &sid);
if (!NT_STATUS_IS_OK(status)) goto done;
s3call->response.result = WINBINDD_OK;
s3call->response.data.sid.type = sid->type;
WBSRV_SAMBA3_SET_STRING(s3call->response.data.sid.sid,
dom_sid_string(s3call, sid->sid));
done:
if (!NT_STATUS_IS_OK(status)) {
struct winbindd_response *resp = &s3call->response;
resp->result = WINBINDD_ERROR;
WBSRV_SAMBA3_SET_STRING(resp->data.auth.nt_status_string,
nt_errstr(status));
WBSRV_SAMBA3_SET_STRING(resp->data.auth.error_string,
nt_errstr(status));
resp->data.auth.pam_error = nt_status_to_pam(status);
}
status = wbsrv_send_reply(s3call->call);
if (!NT_STATUS_IS_OK(status)) {
wbsrv_terminate_connection(s3call->call->wbconn,
"wbsrv_queue_reply() failed");
return;
}
}
NTSTATUS wbsrv_samba3_pam_auth(struct wbsrv_samba3_call *s3call)
{
struct wbsrv_service *service =
s3call->call->wbconn->listen_socket->service;
s3call->response.result = WINBINDD_ERROR;
return NT_STATUS_OK;
}
NTSTATUS wbsrv_samba3_pam_auth_crap(struct wbsrv_samba3_call *s3call)
{
struct wbsrv_service *service =
s3call->call->wbconn->listen_socket->service;
struct creds_CredentialState *creds_state;
struct netr_Authenticator auth, auth2;
struct netr_NetworkInfo ninfo;
struct netr_LogonSamLogon r;
NTSTATUS status;
TALLOC_CTX *mem_ctx = talloc_new(s3call);
if (!mem_ctx) {
return NT_STATUS_NO_MEMORY;
}
ZERO_STRUCT(auth2);
creds_state = cli_credentials_get_netlogon_creds(service->domains->schannel_creds);
creds_client_authenticator(creds_state, &auth);
ninfo.identity_info.account_name.string = s3call->request.data.auth_crap.user;
ninfo.identity_info.domain_name.string = s3call->request.data.auth_crap.domain;
ninfo.identity_info.parameter_control = 0;
ninfo.identity_info.logon_id_low = 0;
ninfo.identity_info.logon_id_high = 0;
ninfo.identity_info.workstation.string = s3call->request.data.auth_crap.workstation;
memcpy(ninfo.challenge, s3call->request.data.auth_crap.chal,
sizeof(ninfo.challenge));
ninfo.nt.length = s3call->request.data.auth_crap.nt_resp_len;
ninfo.nt.data = s3call->request.data.auth_crap.nt_resp;
ninfo.lm.length = s3call->request.data.auth_crap.lm_resp_len;
ninfo.lm.data = s3call->request.data.auth_crap.lm_resp;
r.in.server_name = talloc_asprintf(mem_ctx, "\\\\%s", dcerpc_server_name(service->domains->netlogon_pipe));
r.in.workstation = cli_credentials_get_workstation(service->domains->schannel_creds);
r.in.credential = &auth;
r.in.return_authenticator = &auth2;
r.in.logon_level = 2;
r.in.validation_level = 3;
r.in.logon.network = &ninfo;
r.out.return_authenticator = NULL;
status = dcerpc_netr_LogonSamLogon(service->domains->netlogon_pipe, mem_ctx, &r);
if (!r.out.return_authenticator ||
!creds_client_check(creds_state, &r.out.return_authenticator->cred)) {
DEBUG(0, ("Credentials check failed!\n"));
status = NT_STATUS_ACCESS_DENIED;
}
if (NT_STATUS_IS_OK(status)) {
struct netr_SamBaseInfo *base;
switch (r.in.validation_level) {
case 2:
base = &r.out.validation.sam2->base;
break;
case 3:
base = &r.out.validation.sam3->base;
break;
case 6:
base = &r.out.validation.sam6->base;
break;
}
creds_decrypt_samlogon(creds_state,
r.in.validation_level,
&r.out.validation);
if ((s3call->request.flags & WBFLAG_PAM_INFO3_NDR)
&& (r.in.validation_level == 3)) {
DATA_BLOB tmp_blob, tmp_blob2;
status = ndr_push_struct_blob(&tmp_blob, mem_ctx, r.out.validation.sam3,
(ndr_push_flags_fn_t)ndr_push_netr_SamInfo3);
if (NT_STATUS_IS_OK(status)) {
tmp_blob2 = data_blob_talloc(mem_ctx, NULL, tmp_blob.length + 4);
if (!tmp_blob2.data) {
status = NT_STATUS_NO_MEMORY;
}
}
/* Ugly Samba3 winbind pipe compatability */
if (NT_STATUS_IS_OK(status)) {
SIVAL(tmp_blob2.data, 0, 1);
memcpy(tmp_blob2.data + 4, tmp_blob.data, tmp_blob.length);
}
s3call->response.extra_data = talloc_steal(s3call, tmp_blob2.data);
s3call->response.length += tmp_blob2.length;
}
if (s3call->request.flags & WBFLAG_PAM_USER_SESSION_KEY) {
memcpy(s3call->response.data.auth.user_session_key,
base->key.key, sizeof(s3call->response.data.auth.user_session_key) /* 16 */);
}
if (s3call->request.flags & WBFLAG_PAM_LMKEY) {
memcpy(s3call->response.data.auth.first_8_lm_hash,
base->LMSessKey.key, sizeof(s3call->response.data.auth.first_8_lm_hash) /* 8 */);
}
}
if (!NT_STATUS_IS_OK(status)) {
struct winbindd_response *resp = &s3call->response;
resp->result = WINBINDD_ERROR;
} else {
struct winbindd_response *resp = &s3call->response;
resp->result = WINBINDD_OK;
}
WBSRV_SAMBA3_SET_STRING(s3call->response.data.auth.nt_status_string,
nt_errstr(status));
WBSRV_SAMBA3_SET_STRING(s3call->response.data.auth.error_string,
nt_errstr(status));
s3call->response.data.auth.pam_error = nt_status_to_pam(status);
return NT_STATUS_OK;
}
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