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/*
* Copyright (C) 2009 Sony Computer Entertainment Inc.
* Copyright 2009 Sony Corp.
*
* 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; version 2 of the License.
*
* 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, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#if defined(HAVE_CONFIG_H)
#include "config.h"
#endif
#define _GNU_SOURCE
#include <assert.h>
#include <errno.h>
#include <string.h>
#include <sys/socket.h>
#include <sys/types.h>
#include <sys/un.h>
#include <log/log.h>
#include <talloc/talloc.h>
#include <waiter/waiter.h>
#include "device-handler.h"
#include "event.h"
#include "user-event.h"
struct user_event {
struct device_handler *handler;
int socket;
};
static const char *event_action_name(enum event_action action)
{
switch (action) {
case EVENT_ACTION_ADD:
return "add";
case EVENT_ACTION_REMOVE:
return "remove";
case EVENT_ACTION_CONF:
return "conf";
default:
break;
}
return "unknown";
}
static void user_event_print_event(struct event __attribute__((unused)) *event)
{
int i;
pb_log("user_event %s event:\n", event_action_name(event->action));
pb_log("\tdevice: %s\n", event->device);
for (i = 0; i < event->n_params; i++)
pb_log("\t%-12s => %s\n",
event->params[i].name, event->params[i].value);
}
static void user_event_handle_message(struct user_event *uev, char *buf,
int len)
{
int result;
struct event *event;
event = talloc(uev, struct event);
event->type = EVENT_TYPE_USER;
result = event_parse_ad_message(event, buf, len);
if (result)
return;
user_event_print_event(event);
device_handler_event(uev->handler, event);
talloc_free(event);
return;
}
static int user_event_process(void *arg)
{
struct user_event *uev = arg;
char buf[PBOOT_USER_EVENT_SIZE];
int len;
len = recvfrom(uev->socket, buf, sizeof(buf), 0, NULL, NULL);
if (len < 0) {
pb_log("%s: socket read failed: %s", __func__, strerror(errno));
return 0;
}
if (len == 0) {
pb_log("%s: empty", __func__);
return 0;
}
pb_log("%s: %u bytes\n", __func__, len);
user_event_handle_message(uev, buf, len);
return 0;
}
static int user_event_destructor(void *arg)
{
struct user_event *uev = arg;
pb_log("%s\n", __func__);
if (uev->socket >= 0)
close(uev->socket);
return 0;
}
struct user_event *user_event_init(struct waitset *waitset,
struct device_handler *handler)
{
struct sockaddr_un addr;
struct user_event *uev;
unlink(PBOOT_USER_EVENT_SOCKET);
uev = talloc(NULL, struct user_event);
uev->handler = handler;
uev->socket = socket(AF_UNIX, SOCK_DGRAM, 0);
if (uev->socket < 0) {
pb_log("%s: Error creating event handler socket: %s\n",
__func__, strerror(errno));
goto out_err;
}
talloc_set_destructor(uev, user_event_destructor);
memset(&addr, 0, sizeof(addr));
addr.sun_family = AF_UNIX;
strcpy(addr.sun_path, PBOOT_USER_EVENT_SOCKET);
if (bind(uev->socket, (struct sockaddr *)&addr, sizeof(addr))) {
pb_log("Error binding event handler socket: %s\n",
strerror(errno));
}
waiter_register_io(waitset, uev->socket, WAIT_IN,
user_event_process, uev);
pb_log("%s: waiting on %s\n", __func__, PBOOT_USER_EVENT_SOCKET);
return uev;
out_err:
talloc_free(uev);
return NULL;
}
/**
* user_event_trigger - Trigger known user events
*
* SIGUSR1 causes udhcpc to renew the current lease or obtain a new lease.
*/
void user_event_trigger(struct user_event __attribute__((unused)) *uev)
{
/* FIXME: todo */
}
void user_event_destroy(struct user_event *uev)
{
talloc_free(uev);
}
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