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/*
Copyright (C) 2019 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/ipa/ipa_common.h"
#include "providers/ipa/ipa_id.h"
struct ipa_refresh_state {
struct tevent_context *ev;
struct be_ctx *be_ctx;
struct dp_id_data *account_req;
struct ipa_id_ctx *id_ctx;
struct sss_domain_info *domain;
char **names;
size_t index;
};
static errno_t ipa_refresh_step(struct tevent_req *req);
static void ipa_refresh_done(struct tevent_req *subreq);
static struct tevent_req *ipa_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 ipa_refresh_state *state = NULL;
struct tevent_req *req = NULL;
errno_t ret;
req = tevent_req_create(mem_ctx, &state,
struct ipa_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->domain = domain;
state->id_ctx = talloc_get_type(pvt, struct ipa_id_ctx);
state->names = names;
state->index = 0;
state->account_req = be_refresh_acct_req(state, entry_type,
BE_FILTER_NAME, domain);
if (state->account_req == NULL) {
ret = ENOMEM;
goto immediately;
}
ret = ipa_refresh_step(req);
if (ret == EOK) {
DEBUG(SSSDBG_TRACE_FUNC, "Nothing to refresh\n");
goto immediately;
} else if (ret != EAGAIN) {
DEBUG(SSSDBG_CRIT_FAILURE, "ipa_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 ipa_refresh_step(struct tevent_req *req)
{
struct ipa_refresh_state *state = NULL;
struct tevent_req *subreq = NULL;
errno_t ret;
state = tevent_req_data(req, struct ipa_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;
}
subreq = ipa_account_info_send(state, state->be_ctx, state->id_ctx,
state->account_req);
if (subreq == NULL) {
ret = ENOMEM;
goto done;
}
tevent_req_set_callback(subreq, ipa_refresh_done, req);
state->index++;
ret = EAGAIN;
done:
return ret;
}
static void ipa_refresh_done(struct tevent_req *subreq)
{
struct ipa_refresh_state *state = NULL;
struct tevent_req *req = NULL;
errno_t dp_error;
errno_t ret;
req = tevent_req_callback_data(subreq, struct tevent_req);
state = tevent_req_data(req, struct ipa_refresh_state);
ret = ipa_account_info_recv(subreq, &dp_error);
talloc_zfree(subreq);
if (ret != EOK) {
DEBUG(SSSDBG_CRIT_FAILURE, "Unable to refresh %s [dp_error: %d, "
"errno: %d]\n", be_req2str(state->account_req->entry_type),
dp_error, ret);
goto done;
}
if (state->account_req->entry_type == BE_REQ_INITGROUPS) {
ret = sysdb_set_initgr_expire_timestamp(state->domain,
state->account_req->filter_value);
if (ret != EOK) {
DEBUG(SSSDBG_MINOR_FAILURE,
"Failed to set initgroups expiration for [%s]\n",
state->account_req->filter_value);
}
}
ret = ipa_refresh_step(req);
if (ret == EAGAIN) {
return;
}
done:
if (ret != EOK) {
tevent_req_error(req, ret);
return;
}
tevent_req_done(req);
}
static errno_t ipa_refresh_recv(struct tevent_req *req)
{
TEVENT_REQ_RETURN_ON_ERROR(req);
return EOK;
}
REFRESH_SEND_RECV_FNS(ipa_refresh_initgroups, ipa_refresh, BE_REQ_INITGROUPS);
REFRESH_SEND_RECV_FNS(ipa_refresh_users, ipa_refresh, BE_REQ_USER);
REFRESH_SEND_RECV_FNS(ipa_refresh_groups, ipa_refresh, BE_REQ_GROUP);
REFRESH_SEND_RECV_FNS(ipa_refresh_netgroups, ipa_refresh, BE_REQ_NETGROUP);
errno_t ipa_refresh_init(struct be_ctx *be_ctx,
struct ipa_id_ctx *id_ctx)
{
errno_t ret;
struct be_refresh_cb ipa_refresh_callbacks[] = {
{ .send_fn = ipa_refresh_initgroups_send,
.recv_fn = ipa_refresh_initgroups_recv,
.pvt = id_ctx,
},
{ .send_fn = ipa_refresh_users_send,
.recv_fn = ipa_refresh_users_recv,
.pvt = id_ctx,
},
{ .send_fn = ipa_refresh_groups_send,
.recv_fn = ipa_refresh_groups_recv,
.pvt = id_ctx,
},
{ .send_fn = ipa_refresh_netgroups_send,
.recv_fn = ipa_refresh_netgroups_recv,
.pvt = id_ctx,
},
};
ret = be_refresh_ctx_init_with_callbacks(be_ctx,
SYSDB_NAME,
ipa_refresh_callbacks);
if (ret != EOK) {
DEBUG(SSSDBG_FATAL_FAILURE, "Unable to initialize background refresh\n");
return ret;
}
return EOK;
}
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