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/*
Unix SMB/CIFS implementation.
async implementation of WINBINDD_PAM_AUTH
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 "libcli/security/dom_sid.h"
struct winbindd_pam_auth_state {
struct winbindd_request *request;
struct winbindd_response *response;
};
static void winbindd_pam_auth_done(struct tevent_req *subreq);
struct tevent_req *winbindd_pam_auth_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_state *state;
struct winbindd_domain *domain;
fstring name_domain, name_user;
char *mapped = NULL;
NTSTATUS status;
req = tevent_req_create(mem_ctx, &state,
struct winbindd_pam_auth_state);
if (req == NULL) {
return NULL;
}
state->request = request;
/* Ensure null termination */
request->data.auth.user[sizeof(request->data.auth.user)-1] = '\0';
request->data.auth.pass[sizeof(request->data.auth.pass)-1] = '\0';
DEBUG(3, ("[%5lu]: pam auth %s\n", (unsigned long)cli->pid,
request->data.auth.user));
if (!check_request_flags(request->flags)) {
tevent_req_nterror(req, NT_STATUS_INVALID_PARAMETER_MIX);
return tevent_req_post(req, ev);
}
/* Parse domain and username */
status = normalize_name_unmap(state, request->data.auth.user, &mapped);
/* If the name normalization changed something, copy it over the given
name */
if (NT_STATUS_IS_OK(status)
|| NT_STATUS_EQUAL(status, NT_STATUS_FILE_RENAMED)) {
fstrcpy(request->data.auth.user, mapped);
}
if (!canonicalize_username(request->data.auth.user, name_domain, name_user)) {
tevent_req_nterror(req, NT_STATUS_NO_SUCH_USER);
return tevent_req_post(req, ev);
}
domain = find_auth_domain(request->flags, name_domain);
if (domain == NULL) {
tevent_req_nterror(req, NT_STATUS_NO_SUCH_USER);
return tevent_req_post(req, ev);
}
subreq = wb_domain_request_send(state, server_event_context(), domain,
request);
if (tevent_req_nomem(subreq, req)) {
return tevent_req_post(req, ev);
}
tevent_req_set_callback(subreq, winbindd_pam_auth_done, req);
return req;
}
static void winbindd_pam_auth_done(struct tevent_req *subreq)
{
struct tevent_req *req = tevent_req_callback_data(
subreq, struct tevent_req);
struct winbindd_pam_auth_state *state = tevent_req_data(
req, struct winbindd_pam_auth_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;
}
tevent_req_done(req);
}
NTSTATUS winbindd_pam_auth_recv(struct tevent_req *req,
struct winbindd_response *response)
{
struct winbindd_pam_auth_state *state = tevent_req_data(
req, struct winbindd_pam_auth_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);
status = NT_STATUS(response->data.auth.nt_status);
if (!NT_STATUS_IS_OK(status)) {
return status;
}
if (state->request->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");
set_auth_errors(response, NT_STATUS_LOGON_FAILURE);
return NT_STATUS_LOGON_FAILURE;
}
}
if (state->request->flags & WBFLAG_PAM_CACHED_LOGIN) {
/* Store in-memory creds for single-signon using ntlm_auth. */
status = winbindd_add_memory_creds(
state->request->data.auth.user,
get_uid_from_request(state->request),
state->request->data.auth.pass);
DEBUG(10, ("winbindd_add_memory_creds returned: %s\n",
nt_errstr(status)));
}
return status;
}
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