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/*
Unix SMB/CIFS implementation.
async implementation of WINBINDD_LIST_GROUPS
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"
struct winbindd_list_groups_domstate {
struct tevent_req *subreq;
struct winbindd_domain *domain;
struct wbint_Principals groups;
};
struct winbindd_list_groups_state {
int num_received;
/* All domains */
int num_domains;
struct winbindd_list_groups_domstate *domains;
};
static void winbindd_list_groups_done(struct tevent_req *subreq);
struct tevent_req *winbindd_list_groups_send(TALLOC_CTX *mem_ctx,
struct tevent_context *ev,
struct winbindd_cli_state *cli,
struct winbindd_request *request)
{
struct tevent_req *req;
struct winbindd_list_groups_state *state;
struct winbindd_domain *domain;
int i;
req = tevent_req_create(mem_ctx, &state,
struct winbindd_list_groups_state);
if (req == NULL) {
return NULL;
}
if (request->wb_flags & WBFLAG_FROM_NSS && !lp_winbind_enum_groups()) {
tevent_req_done(req);
return tevent_req_post(req, ev);
}
/* Ensure null termination */
request->domain_name[sizeof(request->domain_name)-1]='\0';
DEBUG(3, ("list_groups %s\n", request->domain_name));
if (request->domain_name[0] != '\0') {
state->num_domains = 1;
} else {
state->num_domains = 0;
for (domain = domain_list(); domain; domain = domain->next) {
state->num_domains += 1;
}
}
state->domains = talloc_array(state,
struct winbindd_list_groups_domstate,
state->num_domains);
if (tevent_req_nomem(state->domains, req)) {
return tevent_req_post(req, ev);
}
if (request->domain_name[0] != '\0') {
ZERO_STRUCT(state->domains[0].groups);
state->domains[0].domain = find_domain_from_name_noinit(
request->domain_name);
if (state->domains[0].domain == NULL) {
tevent_req_nterror(req, NT_STATUS_NO_SUCH_DOMAIN);
return tevent_req_post(req, ev);
}
} else {
i = 0;
for (domain = domain_list(); domain; domain = domain->next) {
ZERO_STRUCT(state->domains[i].groups);
state->domains[i].domain = domain;
i++;
}
}
for (i=0; i<state->num_domains; i++) {
struct winbindd_list_groups_domstate *d = &state->domains[i];
d->subreq = dcerpc_wbint_QueryGroupList_send(
state->domains, ev, dom_child_handle(d->domain),
&d->groups);
if (tevent_req_nomem(d->subreq, req)) {
TALLOC_FREE(state->domains);
return tevent_req_post(req, ev);
}
tevent_req_set_callback(d->subreq, winbindd_list_groups_done,
req);
}
state->num_received = 0;
return req;
}
static void winbindd_list_groups_done(struct tevent_req *subreq)
{
struct tevent_req *req = tevent_req_callback_data(
subreq, struct tevent_req);
struct winbindd_list_groups_state *state = tevent_req_data(
req, struct winbindd_list_groups_state);
NTSTATUS status, result;
int i;
status = dcerpc_wbint_QueryGroupList_recv(subreq, state->domains,
&result);
for (i=0; i<state->num_domains; i++) {
if (subreq == state->domains[i].subreq) {
break;
}
}
if (i < state->num_domains) {
struct winbindd_list_groups_domstate *d = &state->domains[i];
DEBUG(10, ("Domain %s returned %d groups\n", d->domain->name,
d->groups.num_principals));
d->subreq = NULL;
if (!NT_STATUS_IS_OK(status) || !NT_STATUS_IS_OK(result)) {
DEBUG(10, ("list_groups for domain %s failed\n",
d->domain->name));
d->groups.num_principals = 0;
}
}
TALLOC_FREE(subreq);
state->num_received += 1;
if (state->num_received >= state->num_domains) {
tevent_req_done(req);
}
}
NTSTATUS winbindd_list_groups_recv(struct tevent_req *req,
struct winbindd_response *response)
{
struct winbindd_list_groups_state *state = tevent_req_data(
req, struct winbindd_list_groups_state);
NTSTATUS status;
char *result;
int i;
uint32_t j, num_entries = 0;
size_t len;
if (tevent_req_is_nterror(req, &status)) {
return status;
}
len = 0;
response->data.num_entries = 0;
for (i=0; i<state->num_domains; i++) {
struct winbindd_list_groups_domstate *d = &state->domains[i];
for (j=0; j<d->groups.num_principals; j++) {
const char *name;
name = fill_domain_username_talloc(response, d->domain->name,
d->groups.principals[j].name,
True);
if (name == NULL) {
return NT_STATUS_NO_MEMORY;
}
len += strlen(name)+1;
}
response->data.num_entries += d->groups.num_principals;
}
result = talloc_array(response, char, len+1);
if (result == 0) {
return NT_STATUS_NO_MEMORY;
}
len = 0;
for (i=0; i<state->num_domains; i++) {
struct winbindd_list_groups_domstate *d = &state->domains[i];
for (j=0; j<d->groups.num_principals; j++) {
const char *name;
size_t this_len;
name = fill_domain_username_talloc(response, d->domain->name,
d->groups.principals[j].name,
True);
if (name == NULL) {
return NT_STATUS_NO_MEMORY;
}
this_len = strlen(name);
memcpy(result+len, name, this_len);
len += this_len;
result[len] = ',';
len += 1;
num_entries++;
}
}
result[len-1] = '\0';
response->data.num_entries = num_entries;
response->extra_data.data = result;
response->length += len;
return NT_STATUS_OK;
}
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