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/*
Authors:
Pavel Březina <pbrezina@redhat.com>
Copyright (C) 2017 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 <tevent.h>
#include <talloc.h>
#include "sbus/sbus_private.h"
struct sbus_call_method_state {
DBusMessage *reply;
};
static void sbus_call_method_done(struct tevent_req *subreq);
struct tevent_req *
sbus_call_method_send(TALLOC_CTX *mem_ctx,
struct sbus_connection *conn,
DBusMessage *raw_message,
sbus_invoker_keygen keygen,
sbus_invoker_writer_fn writer,
const char *bus,
const char *path,
const char *iface,
const char *method,
void *input)
{
struct sbus_call_method_state *state;
struct sbus_request *sbus_req;
struct tevent_req *subreq;
struct tevent_req *req;
const char *key = NULL;
DBusMessage *msg;
errno_t ret;
req = tevent_req_create(mem_ctx, &state, struct sbus_call_method_state);
if (req == NULL) {
DEBUG(SSSDBG_CRIT_FAILURE, "Unable to create tevent request!\n");
return NULL;
}
sbus_req = sbus_request_create(state, conn, SBUS_REQUEST_METHOD,
bus, iface, method, path);
if (sbus_req == NULL) {
ret = ENOMEM;
goto done;
}
msg = sbus_create_method_call(state, raw_message, writer, bus, path,
iface, method, input);
if (msg == NULL) {
ret = ENOMEM;
goto done;
}
ret = sbus_request_key(state, keygen, sbus_req, input, &key);
if (ret != EOK) {
goto done;
}
subreq = sbus_outgoing_request_send(state, conn->ev, conn, key, msg);
if (subreq == NULL) {
DEBUG(SSSDBG_CRIT_FAILURE, "Unable to create subrequest!\n");
ret = ENOMEM;
goto done;
}
tevent_req_set_callback(subreq, sbus_call_method_done, req);
ret = EAGAIN;
done:
if (ret != EAGAIN) {
tevent_req_error(req, ret);
tevent_req_post(req, conn->ev);
}
return req;
}
static void sbus_call_method_done(struct tevent_req *subreq)
{
struct sbus_call_method_state *state;
struct tevent_req *req;
errno_t ret;
req = tevent_req_callback_data(subreq, struct tevent_req);
state = tevent_req_data(req, struct sbus_call_method_state);
ret = sbus_outgoing_request_recv(state, subreq, &state->reply);
talloc_zfree(subreq);
if (ret != EOK) {
tevent_req_error(req, ret);
return;
}
tevent_req_done(req);
return;
}
errno_t
sbus_call_method_recv(TALLOC_CTX *mem_ctx,
struct tevent_req *req,
DBusMessage **_reply)
{
struct sbus_call_method_state *state;
errno_t ret;
state = tevent_req_data(req, struct sbus_call_method_state);
TEVENT_REQ_RETURN_ON_ERROR(req);
ret = sbus_message_bound_steal(mem_ctx, state->reply);
if (ret != EOK) {
DEBUG(SSSDBG_CRIT_FAILURE, "Unable to steal message [%d]: %s\n",
ret, sss_strerror(ret));
return ret;
}
*_reply = state->reply;
return EOK;
}
void
sbus_call_signal_send(struct sbus_connection *conn,
DBusMessage *raw_message,
sbus_invoker_writer_fn writer,
const char *path,
const char *iface,
const char *signal_name,
void *input)
{
DBusMessage *msg;
msg = sbus_create_signal_call(NULL, raw_message, writer, path, iface,
signal_name, input);
if (msg == NULL) {
DEBUG(SSSDBG_CRIT_FAILURE, "Unable to create signal message!\n");
return;
}
sbus_emit_signal(conn, msg);
}
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