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/*
Unix SMB/CIFS implementation.
async gettoken
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 "librpc/gen_ndr/ndr_winbind_c.h"
#include "../libcli/security/security.h"
#include "passdb/machine_sid.h"
struct wb_gettoken_state {
struct tevent_context *ev;
struct dom_sid usersid;
bool expand_local_aliases;
uint32_t num_sids;
struct dom_sid *sids;
};
static NTSTATUS wb_add_rids_to_sids(TALLOC_CTX *mem_ctx,
uint32_t *pnum_sids,
struct dom_sid **psids,
const struct dom_sid *domain_sid,
int num_rids, uint32_t *rids);
static void wb_gettoken_gotuser(struct tevent_req *subreq);
static void wb_gettoken_gotgroups(struct tevent_req *subreq);
static void wb_gettoken_gotlocalgroups(struct tevent_req *subreq);
static void wb_gettoken_gotbuiltins(struct tevent_req *subreq);
struct tevent_req *wb_gettoken_send(TALLOC_CTX *mem_ctx,
struct tevent_context *ev,
const struct dom_sid *sid,
bool expand_local_aliases)
{
struct tevent_req *req, *subreq;
struct wb_gettoken_state *state;
req = tevent_req_create(mem_ctx, &state, struct wb_gettoken_state);
if (req == NULL) {
return NULL;
}
sid_copy(&state->usersid, sid);
state->ev = ev;
state->expand_local_aliases = expand_local_aliases;
subreq = wb_queryuser_send(state, ev, &state->usersid);
if (tevent_req_nomem(subreq, req)) {
return tevent_req_post(req, ev);
}
tevent_req_set_callback(subreq, wb_gettoken_gotuser, req);
return req;
}
static void wb_gettoken_gotuser(struct tevent_req *subreq)
{
struct tevent_req *req = tevent_req_callback_data(
subreq, struct tevent_req);
struct wb_gettoken_state *state = tevent_req_data(
req, struct wb_gettoken_state);
struct wbint_userinfo *info;
NTSTATUS status;
status = wb_queryuser_recv(subreq, state, &info);
TALLOC_FREE(subreq);
if (tevent_req_nterror(req, status)) {
return;
}
state->sids = talloc_array(state, struct dom_sid, 2);
if (tevent_req_nomem(state->sids, req)) {
return;
}
state->num_sids = 2;
sid_copy(&state->sids[0], &info->user_sid);
sid_copy(&state->sids[1], &info->group_sid);
subreq = wb_lookupusergroups_send(state, state->ev, &info->user_sid);
if (tevent_req_nomem(subreq, req)) {
return;
}
tevent_req_set_callback(subreq, wb_gettoken_gotgroups, req);
}
static void wb_gettoken_gotgroups(struct tevent_req *subreq)
{
struct tevent_req *req = tevent_req_callback_data(
subreq, struct tevent_req);
struct wb_gettoken_state *state = tevent_req_data(
req, struct wb_gettoken_state);
int i, num_groups;
struct dom_sid *groups;
struct winbindd_domain *domain;
NTSTATUS status;
status = wb_lookupusergroups_recv(subreq, state, &num_groups, &groups);
TALLOC_FREE(subreq);
if (!NT_STATUS_IS_OK(status)) {
tevent_req_done(req);
return;
}
for (i=0; i<num_groups; i++) {
status = add_sid_to_array_unique(
state, &groups[i], &state->sids, &state->num_sids);
if (tevent_req_nterror(req, status)) {
return;
}
}
if (!state->expand_local_aliases) {
tevent_req_done(req);
return;
}
/*
* Expand our domain's aliases
*/
domain = find_domain_from_sid_noinit(get_global_sam_sid());
if (domain == NULL) {
tevent_req_nterror(req, NT_STATUS_INTERNAL_ERROR);
return;
}
subreq = wb_lookupuseraliases_send(state, state->ev, domain,
state->num_sids, state->sids);
if (tevent_req_nomem(subreq, req)) {
return;
}
tevent_req_set_callback(subreq, wb_gettoken_gotlocalgroups, req);
}
static void wb_gettoken_gotlocalgroups(struct tevent_req *subreq)
{
struct tevent_req *req = tevent_req_callback_data(
subreq, struct tevent_req);
struct wb_gettoken_state *state = tevent_req_data(
req, struct wb_gettoken_state);
uint32_t num_rids;
uint32_t *rids;
struct winbindd_domain *domain;
NTSTATUS status;
status = wb_lookupuseraliases_recv(subreq, state, &num_rids, &rids);
TALLOC_FREE(subreq);
if (tevent_req_nterror(req, status)) {
return;
}
status = wb_add_rids_to_sids(state, &state->num_sids, &state->sids,
get_global_sam_sid(), num_rids, rids);
if (tevent_req_nterror(req, status)) {
return;
}
TALLOC_FREE(rids);
/*
* Now expand the builtin groups
*/
domain = find_domain_from_sid(&global_sid_Builtin);
if (domain == NULL) {
tevent_req_nterror(req, NT_STATUS_INTERNAL_ERROR);
return;
}
subreq = wb_lookupuseraliases_send(state, state->ev, domain,
state->num_sids, state->sids);
if (tevent_req_nomem(subreq, req)) {
return;
}
tevent_req_set_callback(subreq, wb_gettoken_gotbuiltins, req);
}
static void wb_gettoken_gotbuiltins(struct tevent_req *subreq)
{
struct tevent_req *req = tevent_req_callback_data(
subreq, struct tevent_req);
struct wb_gettoken_state *state = tevent_req_data(
req, struct wb_gettoken_state);
uint32_t num_rids;
uint32_t *rids;
NTSTATUS status;
status = wb_lookupuseraliases_recv(subreq, state, &num_rids, &rids);
TALLOC_FREE(subreq);
if (tevent_req_nterror(req, status)) {
return;
}
status = wb_add_rids_to_sids(state, &state->num_sids, &state->sids,
&global_sid_Builtin, num_rids, rids);
if (tevent_req_nterror(req, status)) {
return;
}
tevent_req_done(req);
}
NTSTATUS wb_gettoken_recv(struct tevent_req *req, TALLOC_CTX *mem_ctx,
int *num_sids, struct dom_sid **sids)
{
struct wb_gettoken_state *state = tevent_req_data(
req, struct wb_gettoken_state);
NTSTATUS status;
if (tevent_req_is_nterror(req, &status)) {
return status;
}
*num_sids = state->num_sids;
*sids = talloc_move(mem_ctx, &state->sids);
return NT_STATUS_OK;
}
static NTSTATUS wb_add_rids_to_sids(TALLOC_CTX *mem_ctx,
uint32_t *pnum_sids,
struct dom_sid **psids,
const struct dom_sid *domain_sid,
int num_rids, uint32_t *rids)
{
int i;
for (i=0; i<num_rids; i++) {
NTSTATUS status;
struct dom_sid sid;
sid_compose(&sid, domain_sid, rids[i]);
status = add_sid_to_array_unique(
mem_ctx, &sid, psids, pnum_sids);
if (!NT_STATUS_IS_OK(status)) {
return status;
}
}
return NT_STATUS_OK;
}
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