size_t enum_devices(enum_device_t devices[MAX_DEVICE_COUNT])
{
ULONG len = 0;
IP_ADAPTER_INFO* adapters = NULL;
IP_INTERFACE_INFO* interfaces = NULL;
HANDLE handle = INVALID_HANDLE_VALUE;
size_t idx = 0;
if (GetAdaptersInfo(NULL, &len) == ERROR_NO_DATA) goto failed;
adapters = malloc(sizeof(IP_ADAPTER_INFO) * len);
if (adapters == NULL) goto failed;
if (GetAdaptersInfo(adapters, &len) == ERROR_SUCCESS)
{
IP_ADAPTER_INFO* adp = adapters;
while (adp)
{
if (adp->Type == MIB_IF_TYPE_ETHERNET)
{
if (strncmp(adp->Description, "QTun", sizeof("QTun") - 1) == 0)
{
devices[idx].index = adp->Index;
strcpy(devices[idx].dev_path, "\\\\.\\");
strcat(devices[idx].dev_path, adp->AdapterName);
strcat(devices[idx].dev_path, ".tun");
++idx;
}
}
adp = adp->Next;
}
}
MprConfigServerConnect(NULL, &handle);
len = 0;
if (GetInterfaceInfo(NULL, &len) == ERROR_NO_DATA) goto failed;
interfaces = malloc(sizeof(IP_INTERFACE_INFO) * len);
if (interfaces == NULL) goto failed;
if (GetInterfaceInfo(interfaces, &len) == ERROR_SUCCESS)
{
LONG i;
size_t j;
for (i = 0; i < interfaces->NumAdapters; ++i)
{
for (j = 0; j < idx; ++j)
{
if (devices[j].index == interfaces->Adapter[i].Index)
{
WCHAR w_name[128] = { 0 };
int name_len = 0;
MprConfigGetFriendlyName(handle, interfaces->Adapter[i].Name, w_name, sizeof(w_name));
name_len = WideCharToMultiByte(CP_ACP, 0, w_name, -1, NULL, 0, NULL, FALSE);
WideCharToMultiByte(CP_ACP, 0, w_name, -1, devices[j].dev_name, name_len, NULL, FALSE);
break;
}
}
}
}
if (adapters) free(adapters);
if (interfaces) free(interfaces);
return idx;
failed:
if (adapters) free(adapters);
if (interfaces) free(interfaces);
return 0;
}
int
rtm_ifannounce(LPWSTR ifname, DWORD ifindex, int what)
{
WCHAR fnameW[IFNAMSIZ];
struct if_announcemsghdr *ifa;
int result;
int retval;
TRACE3(ENTER, "Entering rtm_ifannounce %S %d %d", ifname, ifindex, what);
ifa = NULL;
retval = -1;
if ((what != IFAN_ARRIVAL) && (what != IFAN_DEPARTURE)) {
goto out;
}
ifa = malloc(sizeof(*ifa));
if (ifa == NULL) {
goto out;
}
ifa->ifan_name[0] = '\0';
/*
* If this is a new interface, then look up the FriendlyName from
* the unicode GUID name; convert Unicode to ASCII afterwards.
* If the caller didn't supply this, the error is fatal to this function.
* If we can't find it, the error is non-fatal to this function.
*
* XXX: The very fact that we don't provide the interface name here
* is a limitation to do with how the notifications work in the
* Microsoft stack. It only tells us the interface index when
* the interface goes away. XORP currently depends on both for
* interface deletion. We could look it up from the transport,
* but it's more work to deliver redundant information.
*/
if (what == IFAN_ARRIVAL) {
if (ifname == NULL)
goto out;
result = MprConfigGetFriendlyName(g_ce.hMprConfig, ifname, fnameW,
sizeof(fnameW));
if (result != NO_ERROR) {
TRACE1(NETWORK, "can't find friendlyname for ifname %S", ifname);
} else {
wcstombs(ifa->ifan_name, fnameW, IFNAMSIZ);
}
}
/*
* Fill our the rest of the interface announcement and send it to
* all connected clients.
*/
ifa->ifan_msglen = sizeof(*ifa);
ifa->ifan_version = RTM_VERSION; /* XXX should set to 0 or ignore */
ifa->ifan_type = RTM_IFANNOUNCE;
ifa->ifan_index = ifindex;
ifa->ifan_what = what;
broadcast_pipe_message(ifa, sizeof(*ifa));
retval = 0;
out:
if (ifa != NULL)
free(ifa);
TRACE0(ENTER, "Leaving rtm_ifannounce");
return (retval);
}