mirror of
https://github.com/samba-team/samba.git
synced 2024-12-24 21:34:56 +03:00
53d9cf7692
Test scenario: $ bin/wbinfo --logoff Signed-off-by: Pavel Filipenský <pfilipen@redhat.com> Reviewed-by: Andreas Schneider <asn@samba.org>
174 lines
4.7 KiB
C
174 lines
4.7 KiB
C
/*
|
|
Unix SMB/CIFS implementation.
|
|
async implementation of WINBINDD_PAM_LOGOFF
|
|
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 "util/debug.h"
|
|
#include "winbindd.h"
|
|
#include "lib/global_contexts.h"
|
|
#include "librpc/gen_ndr/ndr_winbind_c.h"
|
|
|
|
struct winbindd_pam_logoff_state {
|
|
struct wbint_PamLogOff r;
|
|
};
|
|
|
|
static void winbindd_pam_logoff_done(struct tevent_req *subreq);
|
|
|
|
struct tevent_req *winbindd_pam_logoff_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_logoff_state *state;
|
|
struct winbindd_domain *domain;
|
|
fstring name_namespace, name_domain, user;
|
|
uid_t caller_uid;
|
|
gid_t caller_gid;
|
|
int res;
|
|
bool ok;
|
|
|
|
req = tevent_req_create(mem_ctx, &state,
|
|
struct winbindd_pam_logoff_state);
|
|
if (req == NULL) {
|
|
return NULL;
|
|
}
|
|
D_NOTICE("[%s (%u)] Winbind external command PAM_LOGOFF start.\n"
|
|
"Username '%s' is used during logoff.\n",
|
|
cli->client_name,
|
|
(unsigned int)cli->pid,
|
|
request->data.auth.user);
|
|
/* Ensure null termination */
|
|
/* Ensure null termination */
|
|
request->data.logoff.user[sizeof(request->data.logoff.user)-1]='\0';
|
|
request->data.logoff.krb5ccname[
|
|
sizeof(request->data.logoff.krb5ccname)-1]='\0';
|
|
|
|
if (request->data.logoff.uid == (uid_t)-1) {
|
|
goto failed;
|
|
}
|
|
|
|
ok = canonicalize_username(request->data.logoff.user,
|
|
name_namespace,
|
|
name_domain,
|
|
user);
|
|
if (!ok) {
|
|
goto failed;
|
|
}
|
|
|
|
domain = find_auth_domain(request->flags, name_namespace);
|
|
if (domain == NULL) {
|
|
goto failed;
|
|
}
|
|
|
|
caller_uid = (uid_t)-1;
|
|
|
|
res = getpeereid(cli->sock, &caller_uid, &caller_gid);
|
|
if (res != 0) {
|
|
D_WARNING("winbindd_pam_logoff: failed to check peerid: %s\n",
|
|
strerror(errno));
|
|
goto failed;
|
|
}
|
|
|
|
switch (caller_uid) {
|
|
case -1:
|
|
goto failed;
|
|
case 0:
|
|
/* root must be able to logoff any user - gd */
|
|
break;
|
|
default:
|
|
if (caller_uid != request->data.logoff.uid) {
|
|
D_WARNING("caller requested invalid uid\n");
|
|
goto failed;
|
|
}
|
|
break;
|
|
}
|
|
|
|
state->r.in.client_name = talloc_strdup(state, request->client_name);
|
|
if (tevent_req_nomem(state->r.in.client_name, req)) {
|
|
return tevent_req_post(req, ev);
|
|
}
|
|
state->r.in.client_pid = request->pid;
|
|
|
|
state->r.in.flags = request->flags;
|
|
state->r.in.user = talloc_strdup(state, request->data.logoff.user);
|
|
if (tevent_req_nomem(state->r.in.user, req)) {
|
|
return tevent_req_post(req, ev);
|
|
}
|
|
state->r.in.uid = request->data.logoff.uid;
|
|
state->r.in.krb5ccname = talloc_strdup(state,
|
|
request->data.logoff.krb5ccname);
|
|
if (tevent_req_nomem(state->r.in.krb5ccname, req)) {
|
|
return tevent_req_post(req, ev);
|
|
}
|
|
|
|
subreq = dcerpc_wbint_PamLogOff_r_send(state,
|
|
global_event_context(),
|
|
dom_child_handle(domain),
|
|
&state->r);
|
|
if (tevent_req_nomem(subreq, req)) {
|
|
return tevent_req_post(req, ev);
|
|
}
|
|
tevent_req_set_callback(subreq, winbindd_pam_logoff_done, req);
|
|
return req;
|
|
|
|
failed:
|
|
tevent_req_nterror(req, NT_STATUS_NO_SUCH_USER);
|
|
return tevent_req_post(req, ev);
|
|
}
|
|
|
|
static void winbindd_pam_logoff_done(struct tevent_req *subreq)
|
|
{
|
|
struct tevent_req *req = tevent_req_callback_data(
|
|
subreq, struct tevent_req);
|
|
struct winbindd_pam_logoff_state *state = tevent_req_data(
|
|
req, struct winbindd_pam_logoff_state);
|
|
NTSTATUS status;
|
|
|
|
status = dcerpc_wbint_PamLogOff_r_recv(subreq, state);
|
|
TALLOC_FREE(subreq);
|
|
if (tevent_req_nterror(req, status)) {
|
|
return;
|
|
}
|
|
|
|
tevent_req_done(req);
|
|
}
|
|
|
|
NTSTATUS winbindd_pam_logoff_recv(struct tevent_req *req,
|
|
struct winbindd_response *response)
|
|
{
|
|
struct winbindd_pam_logoff_state *state = tevent_req_data(
|
|
req, struct winbindd_pam_logoff_state);
|
|
NTSTATUS status = NT_STATUS_OK;
|
|
|
|
D_NOTICE("Winbind external command PAM_LOGOFF end.\n");
|
|
if (tevent_req_is_nterror(req, &status)) {
|
|
set_auth_errors(response, status);
|
|
return status;
|
|
}
|
|
|
|
response->result = WINBINDD_PENDING;
|
|
set_auth_errors(response, state->r.out.result);
|
|
|
|
if (NT_STATUS_IS_OK(state->r.out.result)) {
|
|
winbindd_delete_memory_creds(state->r.in.user);
|
|
}
|
|
|
|
return NT_STATUS(response->data.auth.nt_status);
|
|
}
|