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/*
Unix SMB/CIFS implementation.
async implementation of WINBINDD_PAM_AUTH_CRAP
Copyright (C) Volker Lendecke 2010
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 "winbindd.h"
#include "rpc_client/util_netlogon.h"
#include "libcli/security/dom_sid.h"
struct winbindd_pam_auth_crap_state {
struct winbindd_response *response;
uint32_t flags;
};
static void winbindd_pam_auth_crap_done(struct tevent_req *subreq);
struct tevent_req *winbindd_pam_auth_crap_send(
TALLOC_CTX *mem_ctx,
struct tevent_context *ev,
struct winbindd_cli_state *cli,
struct winbindd_request *request)
{
struct tevent_req *req, *subreq;
struct winbindd_pam_auth_crap_state *state;
struct winbindd_domain *domain;
const char *auth_domain = NULL;
req = tevent_req_create(mem_ctx, &state,
struct winbindd_pam_auth_crap_state);
if (req == NULL) {
return NULL;
}
state->flags = request->flags;
if (state->flags & WBFLAG_PAM_AUTH_PAC) {
bool is_trusted = false;
uint16_t validation_level;
union netr_Validation *validation = NULL;
NTSTATUS status;
status = winbindd_pam_auth_pac_verify(cli,
&is_trusted,
&validation_level,
&validation);
if (tevent_req_nterror(req, status)) {
return tevent_req_post(req, ev);
}
state->response = talloc_zero(state,
struct winbindd_response);
if (tevent_req_nomem(state->response, req)) {
return tevent_req_post(req, ev);
}
state->response->result = WINBINDD_PENDING;
state->response->length = sizeof(struct winbindd_response);
status = append_auth_data(state->response,
state->response,
state->flags,
validation_level,
validation,
NULL, NULL);
TALLOC_FREE(validation);
if (tevent_req_nterror(req, status)) {
return tevent_req_post(req, ev);
}
if (is_trusted && (state->flags & WBFLAG_PAM_INFO3_TEXT)) {
bool ok;
ok = add_trusted_domain_from_auth(
state->response->data.auth.validation_level,
&state->response->data.auth.info3,
&state->response->data.auth.info6);
if (!ok) {
DBG_ERR("add_trusted_domain_from_auth failed\n");
tevent_req_nterror(req, NT_STATUS_LOGON_FAILURE);
return tevent_req_post(req, ev);
}
}
tevent_req_done(req);
return tevent_req_post(req, ev);
}
/* Ensure null termination */
request->data.auth_crap.user[
sizeof(request->data.auth_crap.user)-1] = '\0';
request->data.auth_crap.domain[
sizeof(request->data.auth_crap.domain)-1] = '\0';
request->data.auth_crap.workstation[
sizeof(request->data.auth_crap.workstation)-1] = '\0';
DEBUG(3, ("[%5lu]: pam auth crap domain: [%s] user: %s\n",
(unsigned long)cli->pid,
request->data.auth_crap.domain,
request->data.auth_crap.user));
if (!check_request_flags(request->flags)) {
tevent_req_nterror(req, NT_STATUS_INVALID_PARAMETER_MIX);
return tevent_req_post(req, ev);
}
auth_domain = request->data.auth_crap.domain;
if (auth_domain[0] == '\0') {
auth_domain = lp_workgroup();
}
domain = find_auth_domain(request->flags, auth_domain);
if (domain == NULL) {
tevent_req_nterror(req, NT_STATUS_NO_SUCH_USER);
return tevent_req_post(req, ev);
}
if (request->data.auth_crap.workstation[0] == '\0') {
fstrcpy(request->data.auth_crap.workstation, lp_netbios_name());
}
subreq = wb_domain_request_send(state, global_event_context(), domain,
request);
if (tevent_req_nomem(subreq, req)) {
return tevent_req_post(req, ev);
}
tevent_req_set_callback(subreq, winbindd_pam_auth_crap_done, req);
return req;
}
static void winbindd_pam_auth_crap_done(struct tevent_req *subreq)
{
struct tevent_req *req = tevent_req_callback_data(
subreq, struct tevent_req);
struct winbindd_pam_auth_crap_state *state = tevent_req_data(
req, struct winbindd_pam_auth_crap_state);
int res, err;
res = wb_domain_request_recv(subreq, state, &state->response, &err);
TALLOC_FREE(subreq);
if (res == -1) {
tevent_req_nterror(req, map_nt_error_from_unix(err));
return;
}
if (NT_STATUS_IS_OK(NT_STATUS(state->response->data.auth.nt_status)) &&
(state->flags & WBFLAG_PAM_INFO3_TEXT))
{
bool ok;
ok = add_trusted_domain_from_auth(
state->response->data.auth.validation_level,
&state->response->data.auth.info3,
&state->response->data.auth.info6);
if (!ok) {
DBG_ERR("add_trusted_domain_from_auth failed\n");
tevent_req_nterror(req, NT_STATUS_LOGON_FAILURE);
return;
}
}
tevent_req_done(req);
}
NTSTATUS winbindd_pam_auth_crap_recv(struct tevent_req *req,
struct winbindd_response *response)
{
struct winbindd_pam_auth_crap_state *state = tevent_req_data(
req, struct winbindd_pam_auth_crap_state);
NTSTATUS status;
if (tevent_req_is_nterror(req, &status)) {
set_auth_errors(response, status);
return status;
}
*response = *state->response;
response->result = WINBINDD_PENDING;
state->response = talloc_move(response, &state->response);
return NT_STATUS(response->data.auth.nt_status);
}
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