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/*
* Copyright (C) 2011 Felix Fietkau <nbd@openwrt.org>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License version 2.1
* as published by the Free Software Foundation
*
* 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.
*/
#include <unistd.h>
#include "libubus.h"
static struct ubus_context *ctx;
static struct ubus_subscriber test_event;
static struct blob_buf b;
enum {
HELLO_ID,
HELLO_MSG,
__HELLO_MAX
};
static const struct blobmsg_policy hello_policy[] = {
[HELLO_ID] = { .name = "id", .type = BLOBMSG_TYPE_INT32 },
[HELLO_MSG] = { .name = "msg", .type = BLOBMSG_TYPE_STRING },
};
struct hello_request {
struct ubus_request_data req;
struct uloop_timeout timeout;
char data[];
};
static void test_hello_reply(struct uloop_timeout *t)
{
struct hello_request *req = container_of(t, struct hello_request, timeout);
blob_buf_init(&b, 0);
blobmsg_add_string(&b, "message", req->data);
ubus_send_reply(ctx, &req->req, b.head);
ubus_complete_deferred_request(ctx, &req->req, 0);
free(req);
}
static int test_hello(struct ubus_context *ctx, struct ubus_object *obj,
struct ubus_request_data *req, const char *method,
struct blob_attr *msg)
{
struct hello_request *hreq;
struct blob_attr *tb[__HELLO_MAX];
const char *format = "%s received a message: %s";
const char *msgstr = "(unknown)";
blobmsg_parse(hello_policy, ARRAY_SIZE(hello_policy), tb, blob_data(msg), blob_len(msg));
if (tb[HELLO_MSG])
msgstr = blobmsg_data(tb[HELLO_MSG]);
hreq = calloc(1, sizeof(*hreq) + strlen(format) + strlen(obj->name) + strlen(msgstr) + 1);
sprintf(hreq->data, format, obj->name, msgstr);
ubus_defer_request(ctx, req, &hreq->req);
hreq->timeout.cb = test_hello_reply;
uloop_timeout_set(&hreq->timeout, 1000);
return 0;
}
enum {
WATCH_ID,
__WATCH_MAX
};
static const struct blobmsg_policy watch_policy[__WATCH_MAX] = {
[WATCH_ID] = { .name = "id", .type = BLOBMSG_TYPE_INT32 },
};
static void
test_handle_remove(struct ubus_context *ctx, struct ubus_subscriber *s,
uint32_t id)
{
fprintf(stderr, "Object %08x went away\n", id);
}
static int test_watch(struct ubus_context *ctx, struct ubus_object *obj,
struct ubus_request_data *req, const char *method,
struct blob_attr *msg)
{
struct blob_attr *tb[__WATCH_MAX];
int ret;
blobmsg_parse(watch_policy, __WATCH_MAX, tb, blob_data(msg), blob_len(msg));
if (!tb[WATCH_ID])
return UBUS_STATUS_INVALID_ARGUMENT;
test_event.remove_cb = test_handle_remove;
ret = ubus_subscribe(ctx, &test_event, blobmsg_get_u32(tb[WATCH_ID]));
fprintf(stderr, "Watching object %08x: %s\n", blobmsg_get_u32(tb[WATCH_ID]), ubus_strerror(ret));
return ret;
}
static const struct ubus_method test_methods[] = {
UBUS_METHOD("hello", test_hello, hello_policy),
UBUS_METHOD("watch", test_watch, watch_policy),
};
static struct ubus_object_type test_object_type =
UBUS_OBJECT_TYPE("test", test_methods);
static struct ubus_object test_object = {
.name = "test",
.type = &test_object_type,
.methods = test_methods,
.n_methods = ARRAY_SIZE(test_methods),
};
static void server_main(void)
{
int ret;
ret = ubus_add_object(ctx, &test_object);
if (ret)
fprintf(stderr, "Failed to add object: %s\n", ubus_strerror(ret));
ret = ubus_register_subscriber(ctx, &test_event);
if (ret)
fprintf(stderr, "Failed to add watch handler: %s\n", ubus_strerror(ret));
uloop_run();
}
int main(int argc, char **argv)
{
const char *ubus_socket = NULL;
int ch;
while ((ch = getopt(argc, argv, "cs:")) != -1) {
switch (ch) {
case 's':
ubus_socket = optarg;
break;
default:
break;
}
}
argc -= optind;
argv += optind;
uloop_init();
ctx = ubus_connect(ubus_socket);
if (!ctx) {
fprintf(stderr, "Failed to connect to ubus\n");
return -1;
}
ubus_add_uloop(ctx);
server_main();
ubus_free(ctx);
uloop_done();
return 0;
}
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