tor-android/external/badvpn_dns/examples/ncdinterfacemonitor_test.c

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2015-01-25 11:08:34 +00:00
/**
* @file ncdinterfacemonitor_test.c
* @author Ambroz Bizjak <ambrop7@gmail.com>
*
* @section LICENSE
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. Neither the name of the author nor the
* names of its contributors may be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
* DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#include <string.h>
#include <inttypes.h>
#include <stdio.h>
#include <misc/get_iface_info.h>
#include <misc/ipaddr6.h>
#include <misc/debug.h>
#include <base/BLog.h>
#include <system/BTime.h>
#include <system/BReactor.h>
#include <system/BSignal.h>
#include <ncd/extra/NCDInterfaceMonitor.h>
BReactor reactor;
NCDInterfaceMonitor monitor;
static void signal_handler (void *user);
static void monitor_handler (void *unused, struct NCDInterfaceMonitor_event event);
static void monitor_handler_error (void *unused);
int main (int argc, char **argv)
{
int ret = 1;
if (argc != 2) {
fprintf(stderr, "Usage: %s <interface>\n", (argc > 0 ? argv[0] : ""));
goto fail0;
}
int ifindex;
if (!badvpn_get_iface_info(argv[1], NULL, NULL, &ifindex)) {
DEBUG("get_iface_info failed");
goto fail0;
}
BTime_Init();
BLog_InitStdout();
if (!BNetwork_GlobalInit()) {
DEBUG("BNetwork_GlobalInit failed");
goto fail1;
}
if (!BReactor_Init(&reactor)) {
DEBUG("BReactor_Init failed");
goto fail1;
}
if (!BSignal_Init(&reactor, signal_handler, NULL)) {
DEBUG("BSignal_Init failed");
goto fail2;
}
int watch_flags = NCDIFMONITOR_WATCH_LINK|NCDIFMONITOR_WATCH_IPV4_ADDR|NCDIFMONITOR_WATCH_IPV6_ADDR;
if (!NCDInterfaceMonitor_Init(&monitor, ifindex, watch_flags, &reactor, NULL, monitor_handler, monitor_handler_error)) {
DEBUG("NCDInterfaceMonitor_Init failed");
goto fail3;
}
ret = BReactor_Exec(&reactor);
NCDInterfaceMonitor_Free(&monitor);
fail3:
BSignal_Finish();
fail2:
BReactor_Free(&reactor);
fail1:
BLog_Free();
fail0:
DebugObjectGlobal_Finish();
return ret;
}
void signal_handler (void *user)
{
DEBUG("termination requested");
BReactor_Quit(&reactor, 1);
}
void monitor_handler (void *unused, struct NCDInterfaceMonitor_event event)
{
switch (event.event) {
case NCDIFMONITOR_EVENT_LINK_UP:
case NCDIFMONITOR_EVENT_LINK_DOWN: {
const char *type = (event.event == NCDIFMONITOR_EVENT_LINK_UP) ? "up" : "down";
printf("link %s\n", type);
} break;
case NCDIFMONITOR_EVENT_IPV4_ADDR_ADDED:
case NCDIFMONITOR_EVENT_IPV4_ADDR_REMOVED: {
const char *type = (event.event == NCDIFMONITOR_EVENT_IPV4_ADDR_ADDED) ? "added" : "removed";
uint8_t *addr = (uint8_t *)&event.u.ipv4_addr.addr;
printf("ipv4 addr %s %d.%d.%d.%d/%d\n", type, (int)addr[0], (int)addr[1], (int)addr[2], (int)addr[3], event.u.ipv4_addr.addr.prefix);
} break;
case NCDIFMONITOR_EVENT_IPV6_ADDR_ADDED:
case NCDIFMONITOR_EVENT_IPV6_ADDR_REMOVED: {
const char *type = (event.event == NCDIFMONITOR_EVENT_IPV6_ADDR_ADDED) ? "added" : "removed";
char str[IPADDR6_PRINT_MAX];
ipaddr6_print_addr(event.u.ipv6_addr.addr.addr, str);
int dynamic = !!(event.u.ipv6_addr.addr_flags & NCDIFMONITOR_ADDR_FLAG_DYNAMIC);
printf("ipv6 addr %s %s/%d scope=%"PRIu8" dynamic=%d\n", type, str, event.u.ipv6_addr.addr.prefix, event.u.ipv6_addr.scope, dynamic);
} break;
default: ASSERT(0);
}
}
void monitor_handler_error (void *unused)
{
DEBUG("monitor error");
BReactor_Quit(&reactor, 1);
}