sdap_refresh.c revision 17531a398cc9084036cb08d69fe876a8f12707bb
/*
Authors:
Pavel Březina <pbrezina@redhat.com>
Copyright (C) 2013 Red Hat
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 <talloc.h>
#include <tevent.h>
#include "providers/ldap/sdap.h"
#include "providers/ldap/ldap_common.h"
struct sdap_refresh_state {
struct tevent_context *ev;
struct be_ctx *be_ctx;
struct be_acct_req *account_req;
struct sdap_id_ctx *id_ctx;
struct sdap_domain *sdom;
const char *type;
char **names;
size_t index;
};
static errno_t sdap_refresh_step(struct tevent_req *req);
static void sdap_refresh_done(struct tevent_req *subreq);
static struct tevent_req *sdap_refresh_send(TALLOC_CTX *mem_ctx,
struct tevent_context *ev,
struct be_ctx *be_ctx,
struct sss_domain_info *domain,
int entry_type,
char **names,
void *pvt)
{
struct sdap_refresh_state *state = NULL;
struct tevent_req *req = NULL;
errno_t ret;
req = tevent_req_create(mem_ctx, &state,
struct sdap_refresh_state);
if (req == NULL) {
DEBUG(SSSDBG_CRIT_FAILURE, "tevent_req_create() failed\n");
return NULL;
}
if (names == NULL) {
ret = EOK;
goto immediately;
}
state->ev = ev;
state->be_ctx = be_ctx;
state->id_ctx = talloc_get_type(pvt, struct sdap_id_ctx);
state->names = names;
state->index = 0;
state->sdom = sdap_domain_get(state->id_ctx->opts, domain);
if (state->sdom == NULL) {
ret = ERR_DOMAIN_NOT_FOUND;
goto immediately;
}
switch (entry_type) {
case BE_REQ_NETGROUP:
state->type = "netgroup";
break;
default:
DEBUG(SSSDBG_CRIT_FAILURE, "Invalid entry type [%d]!\n", entry_type);
}
state->account_req = talloc_zero(state, struct be_acct_req);
if (state->account_req == NULL) {
ret = ENOMEM;
goto immediately;
}
state->account_req->entry_type = entry_type;
state->account_req->attr_type = BE_ATTR_CORE;
state->account_req->filter_type = BE_FILTER_NAME;
state->account_req->extra_value = NULL;
state->account_req->domain = domain->name;
/* filter will be filled later */
ret = sdap_refresh_step(req);
if (ret == EOK) {
DEBUG(SSSDBG_TRACE_FUNC, "Nothing to refresh\n");
goto immediately;
} else if (ret != EAGAIN) {
DEBUG(SSSDBG_CRIT_FAILURE, "sdap_refresh_step() failed "
"[%d]: %s\n", ret, sss_strerror(ret));
goto immediately;
}
return req;
immediately:
if (ret == EOK) {
tevent_req_done(req);
} else {
tevent_req_error(req, ret);
}
tevent_req_post(req, ev);
return req;
}
static errno_t sdap_refresh_step(struct tevent_req *req)
{
struct sdap_refresh_state *state = NULL;
struct tevent_req *subreq = NULL;
errno_t ret;
state = tevent_req_data(req, struct sdap_refresh_state);
if (state->names == NULL) {
ret = EOK;
goto done;
}
state->account_req->filter_value = state->names[state->index];
if (state->account_req->filter_value == NULL) {
ret = EOK;
goto done;
}
DEBUG(SSSDBG_TRACE_FUNC, "Issuing refresh of %s %s\n",
state->type, state->account_req->filter_value);
subreq = sdap_handle_acct_req_send(state, state->be_ctx,
state->account_req, state->id_ctx,
state->sdom, state->id_ctx->conn, true);
if (subreq == NULL) {
ret = ENOMEM;
goto done;
}
tevent_req_set_callback(subreq, sdap_refresh_done, req);
state->index++;
ret = EAGAIN;
done:
return ret;
}
static void sdap_refresh_done(struct tevent_req *subreq)
{
struct sdap_refresh_state *state = NULL;
struct tevent_req *req = NULL;
const char *err_msg = NULL;
errno_t dp_error;
int sdap_ret;
errno_t ret;
req = tevent_req_callback_data(subreq, struct tevent_req);
state = tevent_req_data(req, struct sdap_refresh_state);
ret = sdap_handle_acct_req_recv(subreq, &dp_error, &err_msg, &sdap_ret);
talloc_zfree(subreq);
if (ret != EOK) {
DEBUG(SSSDBG_CRIT_FAILURE, "Unable to refresh %s [dp_error: %d, "
"sdap_ret: %d, errno: %d]: %s\n", state->type,
dp_error, sdap_ret, ret, err_msg);
goto done;
}
ret = sdap_refresh_step(req);
if (ret == EAGAIN) {
return;
}
done:
if (ret != EOK) {
tevent_req_error(req, ret);
return;
}
tevent_req_done(req);
}
static errno_t sdap_refresh_recv(struct tevent_req *req)
{
TEVENT_REQ_RETURN_ON_ERROR(req);
return EOK;
}
static struct tevent_req *
sdap_refresh_netgroups_send(TALLOC_CTX *mem_ctx,
struct tevent_context *ev,
struct be_ctx *be_ctx,
struct sss_domain_info *domain,
char **names,
void *pvt)
{
return sdap_refresh_send(mem_ctx, ev, be_ctx, domain,
BE_REQ_NETGROUP, names, pvt);
}
static errno_t sdap_refresh_netgroups_recv(struct tevent_req *req)
{
return sdap_refresh_recv(req);
}
errno_t sdap_refresh_init(struct be_refresh_ctx *refresh_ctx,
struct sdap_id_ctx *id_ctx)
{
errno_t ret;
ret = be_refresh_add_cb(refresh_ctx, BE_REFRESH_TYPE_NETGROUPS,
sdap_refresh_netgroups_send,
sdap_refresh_netgroups_recv,
id_ctx);
if (ret != EOK && ret != EEXIST) {
DEBUG(SSSDBG_MINOR_FAILURE, "Periodical refresh of netgroups "
"will not work [%d]: %s\n", ret, strerror(ret));
}
return ret;
}