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/*
Unix SMB/CIFS implementation.
async implementation of WINBINDD_GETPWNAM
Copyright (C) Volker Lendecke 2009
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 "passdb/lookup_sid.h" /* only for LOOKUP_NAME_NO_NSS flag */
#include "libcli/security/dom_sid.h"
#include "librpc/gen_ndr/ndr_winbind_c.h"
struct winbindd_getpwnam_state {
struct tevent_context *ev;
const char *request_name;
const char *unmapped_name;
char *namespace;
char *domname;
char *username;
struct dom_sid sid;
enum lsa_SidType type;
struct winbindd_pw pw;
};
static void winbindd_getpwnam_lookupname_done(struct tevent_req *subreq);
static void winbindd_getpwnam_done(struct tevent_req *subreq);
static void winbindd_getpwnam_initialized(struct tevent_req *subreq);
struct tevent_req *winbindd_getpwnam_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_getpwnam_state *state;
req = tevent_req_create(mem_ctx, &state,
struct winbindd_getpwnam_state);
if (req == NULL) {
return NULL;
}
state->ev = ev;
/* Ensure null termination */
request->data.username[sizeof(request->data.username)-1]='\0';
D_NOTICE("[%s (%u)] Winbind external command GETPWNAM start.\n"
"Query username '%s'.\n",
cli->client_name,
(unsigned int)cli->pid,
request->data.username);
state->request_name = talloc_strdup(state, request->data.username);
if (tevent_req_nomem(state->request_name, req)) {
return tevent_req_post(req, ev);
}
subreq = wb_parent_idmap_setup_send(state, ev);
if (tevent_req_nomem(subreq, req)) {
return tevent_req_post(req, ev);
}
tevent_req_set_callback(subreq, winbindd_getpwnam_initialized, req);
return req;
}
static void winbindd_getpwnam_unmap_done(struct tevent_req *subreq);
static void winbindd_getpwnam_initialized(struct tevent_req *subreq)
{
struct tevent_req *req = tevent_req_callback_data(subreq,
struct tevent_req);
struct winbindd_getpwnam_state *state = tevent_req_data(
req, struct winbindd_getpwnam_state);
const struct wb_parent_idmap_config *cfg = NULL;
NTSTATUS status;
status = wb_parent_idmap_setup_recv(subreq, &cfg);
TALLOC_FREE(subreq);
if (tevent_req_nterror(req, status)) {
return;
}
subreq = dcerpc_wbint_NormalizeNameUnmap_send(state,
state->ev,
idmap_child_handle(),
state->request_name,
&state->unmapped_name);
if (tevent_req_nomem(subreq, req)) {
return;
}
tevent_req_set_callback(subreq, winbindd_getpwnam_unmap_done, req);
}
static void winbindd_getpwnam_unmap_done(struct tevent_req *subreq)
{
struct tevent_req *req = tevent_req_callback_data(subreq,
struct tevent_req);
struct winbindd_getpwnam_state *state = tevent_req_data(
req, struct winbindd_getpwnam_state);
NTSTATUS status;
NTSTATUS result = NT_STATUS_UNSUCCESSFUL;
bool ok;
status = dcerpc_wbint_NormalizeNameUnmap_recv(subreq, state, &result);
TALLOC_FREE(subreq);
if (tevent_req_nterror(req, status)) {
return;
}
if (NT_STATUS_IS_OK(result) ||
NT_STATUS_EQUAL(result, NT_STATUS_FILE_RENAMED))
{
/* dcerpc_wbint_NormalizeNameUnmap did something */
state->request_name = state->unmapped_name;
}
ok = parse_domain_user(state,
state->request_name,
&state->namespace,
&state->domname,
&state->username);
if (!ok) {
D_WARNING("Could not parse domain user: %s\n",
state->request_name);
tevent_req_nterror(req, NT_STATUS_INVALID_PARAMETER);
return;
}
subreq = wb_lookupname_send(state,
state->ev,
state->namespace,
state->domname,
state->username,
LOOKUP_NAME_NO_NSS);
if (tevent_req_nomem(subreq, req)) {
return;
}
tevent_req_set_callback(subreq, winbindd_getpwnam_lookupname_done, req);
}
static void winbindd_getpwnam_lookupname_done(struct tevent_req *subreq)
{
struct tevent_req *req = tevent_req_callback_data(
subreq, struct tevent_req);
struct winbindd_getpwnam_state *state = tevent_req_data(
req, struct winbindd_getpwnam_state);
NTSTATUS status;
status = wb_lookupname_recv(subreq, &state->sid, &state->type);
TALLOC_FREE(subreq);
if (NT_STATUS_IS_OK(status) && state->type == SID_NAME_UNKNOWN) {
status = NT_STATUS_NONE_MAPPED;
}
if (tevent_req_nterror(req, status)) {
return;
}
subreq = wb_getpwsid_send(state, state->ev, &state->sid, &state->pw);
if (tevent_req_nomem(subreq, req)) {
return;
}
tevent_req_set_callback(subreq, winbindd_getpwnam_done, req);
}
static void winbindd_getpwnam_done(struct tevent_req *subreq)
{
struct tevent_req *req = tevent_req_callback_data(
subreq, struct tevent_req);
NTSTATUS status;
status = wb_getpwsid_recv(subreq);
TALLOC_FREE(subreq);
if (tevent_req_nterror(req, status)) {
return;
}
tevent_req_done(req);
}
NTSTATUS winbindd_getpwnam_recv(struct tevent_req *req,
struct winbindd_response *response)
{
struct winbindd_getpwnam_state *state = tevent_req_data(
req, struct winbindd_getpwnam_state);
NTSTATUS status;
if (tevent_req_is_nterror(req, &status)) {
struct dom_sid_buf buf;
D_WARNING("Could not convert sid %s: %s\n",
dom_sid_str_buf(&state->sid, &buf),
nt_errstr(status));
return status;
}
response->data.pw = state->pw;
D_NOTICE("Winbind external command GETPWNAM end.\n"
"(name:passwd:uid:gid:gecos:dir:shell)\n"
"%s:%s:%u:%u:%s:%s:%s\n",
state->pw.pw_name,
state->pw.pw_passwd,
(unsigned int)state->pw.pw_uid,
(unsigned int)state->pw.pw_gid,
state->pw.pw_gecos,
state->pw.pw_dir,
state->pw.pw_shell
);
return NT_STATUS_OK;
}
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