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/*
Unix SMB/CIFS implementation.
Command backend for wbinfo -g
Copyright (C) Kai Blin 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 "libcli/composite/composite.h"
#include "winbind/wb_server.h"
#include "smbd/service_task.h"
struct cmd_list_groups_state {
struct composite_context *ctx;
struct wbsrv_service *service;
struct wbsrv_domain *domain;
char *domain_name;
uint32_t resume_index;
char *result;
uint32_t num_groups;
};
static void cmd_list_groups_recv_domain(struct composite_context *ctx);
static void cmd_list_groups_recv_group_list(struct composite_context *ctx);
struct composite_context *wb_cmd_list_groups_send(TALLOC_CTX *mem_ctx,
struct wbsrv_service *service, const char *domain_name)
{
struct composite_context *ctx, *result;
struct cmd_list_groups_state *state;
DEBUG(5, ("wb_cmd_list_groups_send called\n"));
result = composite_create(mem_ctx, service->task->event_ctx);
if (!result) return NULL;
state = talloc(result, struct cmd_list_groups_state);
if (composite_nomem(state, result)) return result;
state->ctx = result;
result->private_data = state;
state->service = service;
state->resume_index = 0;
state->num_groups = 0;
state->result = talloc_strdup(state, "");
if (composite_nomem(state->result, state->ctx)) return result;
/*FIXME: We should look up the domain in the winbind request if it is
* set, not just take the primary domain. However, I want to get the
* libnet logic to work first. */
if (domain_name && *domain_name != '\0') {
state->domain_name = talloc_strdup(state, domain_name);
if (composite_nomem(state->domain_name, state->ctx))
return result;
} else {
state->domain_name = NULL;
}
ctx = wb_sid2domain_send(state, service, service->primary_sid);
if (composite_nomem(ctx, state->ctx)) return result;
composite_continue(state->ctx, ctx, cmd_list_groups_recv_domain, state);
return result;
}
static void cmd_list_groups_recv_domain(struct composite_context *ctx)
{
struct cmd_list_groups_state *state = talloc_get_type(
ctx->async.private_data, struct cmd_list_groups_state);
struct wbsrv_domain *domain;
struct libnet_GroupList *group_list;
DEBUG(5, ("cmd_list_groups_recv_domain called\n"));
state->ctx->status = wb_sid2domain_recv(ctx, &domain);
if (!composite_is_ok(state->ctx)) return;
/* we use this entry also for context purposes (libnet_GroupList) */
state->domain = domain;
/* If this is non-null, we've looked up the domain given in the winbind
* request, otherwise we'll just use the default name .*/
if (state->domain_name == NULL) {
state->domain_name = talloc_strdup(state,
state->domain->libnet_ctx->samr.name);
if (composite_nomem(state->domain_name, state->ctx)) return;
}
group_list = talloc(state, struct libnet_GroupList);
if (composite_nomem(group_list, state->ctx)) return;
group_list->in.domain_name = state->domain_name;
/* Rafal suggested that 128 is a good number here. I don't like magic
* numbers too much, but for now it'll have to do.
*/
group_list->in.page_size = 128;
group_list->in.resume_index = state->resume_index;
ctx = libnet_GroupList_send(state->domain->libnet_ctx, state,
group_list, NULL);
composite_continue(state->ctx, ctx, cmd_list_groups_recv_group_list,
state);
}
static void cmd_list_groups_recv_group_list(struct composite_context *ctx)
{
struct cmd_list_groups_state *state = talloc_get_type(
ctx->async.private_data, struct cmd_list_groups_state);
struct libnet_GroupList *group_list;
NTSTATUS status;
int i;
DEBUG(5, ("cmd_list_groups_recv_group_list called\n"));
group_list = talloc(state, struct libnet_GroupList);
if (composite_nomem(group_list, state->ctx)) return;
status = libnet_GroupList_recv(ctx, state, group_list);
/* If NTSTATUS is neither OK nor MORE_ENTRIES, something broke */
if (!NT_STATUS_IS_OK(status) &&
!NT_STATUS_EQUAL(status, STATUS_MORE_ENTRIES) &&
!NT_STATUS_EQUAL(status, NT_STATUS_NO_MORE_ENTRIES)) {
composite_error(state->ctx, status);
return;
}
for (i = 0; i < group_list->out.count; ++i) {
DEBUG(5, ("Appending group '%s'\n",
group_list->out.groups[i].groupname));
state->result = talloc_asprintf_append_buffer(state->result,
"%s,",
group_list->out.groups[i].groupname);
state->num_groups++;
}
/* If the status is OK, we're finished, there's no more groups.
* So we'll trim off the trailing ',' and are done.*/
if (NT_STATUS_IS_OK(status)) {
size_t str_len = strlen(state->result);
DEBUG(5, ("list_GroupList_recv returned NT_STATUS_OK\n"));
if (str_len > 0) {
state->result[str_len - 1] = '\0';
}
composite_done(state->ctx);
return;
}
DEBUG(5, ("list_GroupList_recv returned NT_STATUS_MORE_ENTRIES\n"));
/* Otherwise there's more groups to get, so call out to libnet and
* continue on this function here. */
group_list->in.domain_name = state->domain_name;
/* See comment above about the page size. 128 seems like a good default.
*/
group_list->in.page_size = 128;
group_list->in.resume_index = group_list->out.resume_index;
ctx = libnet_GroupList_send(state->domain->libnet_ctx, state,group_list,
NULL);
composite_continue(state->ctx, ctx, cmd_list_groups_recv_group_list,
state);
}
NTSTATUS wb_cmd_list_groups_recv(struct composite_context *ctx,
TALLOC_CTX *mem_ctx, uint32_t *extra_data_len,
char **extra_data, uint32_t *num_groups)
{
NTSTATUS status = composite_wait(ctx);
DEBUG(5, ("wb_cmd_list_groups_recv called\n"));
if (NT_STATUS_IS_OK(status)) {
struct cmd_list_groups_state *state = talloc_get_type(
ctx->private_data, struct cmd_list_groups_state);
*extra_data_len = strlen(state->result);
*extra_data = talloc_steal(mem_ctx, state->result);
*num_groups = state->num_groups;
}
talloc_free(ctx);
return status;
}
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