virtualx-engine/drivers/unix/ip_unix.cpp
Rémi Verschelde 8de6405288
UWP: Remove platform port, needs to be redone from scratch for 4.x
The UWP platform port was never ported to the Godot 4.0+ API,
and it's now accumulating bitrot as it doesn't compile, and thus
we no longer propagate platform changes in it.

So we finally remove to acknowledge this state. There's still some
interest in reviving the UWP port eventually, especially as support
for Direct3D 12 will soon be merged, but when that happens it will
be easiest to redo it from scratch.
2023-09-07 15:01:59 +02:00

235 lines
6.9 KiB
C++

/**************************************************************************/
/* ip_unix.cpp */
/**************************************************************************/
/* This file is part of: */
/* GODOT ENGINE */
/* https://godotengine.org */
/**************************************************************************/
/* Copyright (c) 2014-present Godot Engine contributors (see AUTHORS.md). */
/* Copyright (c) 2007-2014 Juan Linietsky, Ariel Manzur. */
/* */
/* Permission is hereby granted, free of charge, to any person obtaining */
/* a copy of this software and associated documentation files (the */
/* "Software"), to deal in the Software without restriction, including */
/* without limitation the rights to use, copy, modify, merge, publish, */
/* distribute, sublicense, and/or sell copies of the Software, and to */
/* permit persons to whom the Software is furnished to do so, subject to */
/* the following conditions: */
/* */
/* The above copyright notice and this permission notice shall be */
/* included in all copies or substantial portions of the Software. */
/* */
/* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, */
/* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF */
/* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. */
/* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY */
/* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, */
/* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE */
/* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */
/**************************************************************************/
#include "ip_unix.h"
#if defined(UNIX_ENABLED) || defined(WINDOWS_ENABLED)
#ifdef WINDOWS_ENABLED
#define WIN32_LEAN_AND_MEAN
#include <windows.h>
#include <winsock2.h>
#include <ws2tcpip.h>
#include <iphlpapi.h>
#include <stdio.h>
#else // UNIX
#include <netdb.h>
#ifdef ANDROID_ENABLED
// We could drop this file once we up our API level to 24,
// where the NDK's ifaddrs.h supports to needed getifaddrs.
#include "thirdparty/misc/ifaddrs-android.h"
#else
#ifdef __FreeBSD__
#include <sys/types.h>
#endif
#include <ifaddrs.h>
#endif
#include <arpa/inet.h>
#include <sys/socket.h>
#ifdef __FreeBSD__
#include <netinet/in.h>
#endif
#include <net/if.h> // Order is important on OpenBSD, leave as last.
#endif // UNIX
#include <string.h>
static IPAddress _sockaddr2ip(struct sockaddr *p_addr) {
IPAddress ip;
if (p_addr->sa_family == AF_INET) {
struct sockaddr_in *addr = (struct sockaddr_in *)p_addr;
ip.set_ipv4((uint8_t *)&(addr->sin_addr));
} else if (p_addr->sa_family == AF_INET6) {
struct sockaddr_in6 *addr6 = (struct sockaddr_in6 *)p_addr;
ip.set_ipv6(addr6->sin6_addr.s6_addr);
}
return ip;
}
void IPUnix::_resolve_hostname(List<IPAddress> &r_addresses, const String &p_hostname, Type p_type) const {
struct addrinfo hints;
struct addrinfo *result = nullptr;
memset(&hints, 0, sizeof(struct addrinfo));
if (p_type == TYPE_IPV4) {
hints.ai_family = AF_INET;
} else if (p_type == TYPE_IPV6) {
hints.ai_family = AF_INET6;
hints.ai_flags = 0;
} else {
hints.ai_family = AF_UNSPEC;
hints.ai_flags = AI_ADDRCONFIG;
}
hints.ai_flags &= ~AI_NUMERICHOST;
int s = getaddrinfo(p_hostname.utf8().get_data(), nullptr, &hints, &result);
if (s != 0) {
print_verbose("getaddrinfo failed! Cannot resolve hostname.");
return;
}
if (result == nullptr || result->ai_addr == nullptr) {
print_verbose("Invalid response from getaddrinfo");
if (result) {
freeaddrinfo(result);
}
return;
}
struct addrinfo *next = result;
do {
if (next->ai_addr == nullptr) {
next = next->ai_next;
continue;
}
IPAddress ip = _sockaddr2ip(next->ai_addr);
if (ip.is_valid() && !r_addresses.find(ip)) {
r_addresses.push_back(ip);
}
next = next->ai_next;
} while (next);
freeaddrinfo(result);
}
#if defined(WINDOWS_ENABLED)
void IPUnix::get_local_interfaces(HashMap<String, Interface_Info> *r_interfaces) const {
ULONG buf_size = 1024;
IP_ADAPTER_ADDRESSES *addrs;
while (true) {
addrs = (IP_ADAPTER_ADDRESSES *)memalloc(buf_size);
int err = GetAdaptersAddresses(AF_UNSPEC, GAA_FLAG_SKIP_ANYCAST | GAA_FLAG_SKIP_MULTICAST | GAA_FLAG_SKIP_DNS_SERVER | GAA_FLAG_SKIP_FRIENDLY_NAME,
nullptr, addrs, &buf_size);
if (err == NO_ERROR) {
break;
}
memfree(addrs);
if (err == ERROR_BUFFER_OVERFLOW) {
continue; // will go back and alloc the right size
}
ERR_FAIL_MSG("Call to GetAdaptersAddresses failed with error " + itos(err) + ".");
}
IP_ADAPTER_ADDRESSES *adapter = addrs;
while (adapter != nullptr) {
Interface_Info info;
info.name = adapter->AdapterName;
info.name_friendly = adapter->FriendlyName;
info.index = String::num_uint64(adapter->IfIndex);
IP_ADAPTER_UNICAST_ADDRESS *address = adapter->FirstUnicastAddress;
while (address != nullptr) {
int family = address->Address.lpSockaddr->sa_family;
if (family != AF_INET && family != AF_INET6) {
continue;
}
info.ip_addresses.push_front(_sockaddr2ip(address->Address.lpSockaddr));
address = address->Next;
}
adapter = adapter->Next;
// Only add interface if it has at least one IP
if (info.ip_addresses.size() > 0) {
r_interfaces->insert(info.name, info);
}
}
memfree(addrs);
}
#else // UNIX
void IPUnix::get_local_interfaces(HashMap<String, Interface_Info> *r_interfaces) const {
struct ifaddrs *ifAddrStruct = nullptr;
struct ifaddrs *ifa = nullptr;
int family;
getifaddrs(&ifAddrStruct);
for (ifa = ifAddrStruct; ifa != nullptr; ifa = ifa->ifa_next) {
if (!ifa->ifa_addr) {
continue;
}
family = ifa->ifa_addr->sa_family;
if (family != AF_INET && family != AF_INET6) {
continue;
}
HashMap<String, Interface_Info>::Iterator E = r_interfaces->find(ifa->ifa_name);
if (!E) {
Interface_Info info;
info.name = ifa->ifa_name;
info.name_friendly = ifa->ifa_name;
info.index = String::num_uint64(if_nametoindex(ifa->ifa_name));
E = r_interfaces->insert(ifa->ifa_name, info);
ERR_CONTINUE(!E);
}
Interface_Info &info = E->value;
info.ip_addresses.push_front(_sockaddr2ip(ifa->ifa_addr));
}
if (ifAddrStruct != nullptr) {
freeifaddrs(ifAddrStruct);
}
}
#endif // UNIX
void IPUnix::make_default() {
_create = _create_unix;
}
IP *IPUnix::_create_unix() {
return memnew(IPUnix);
}
IPUnix::IPUnix() {
}
#endif // UNIX_ENABLED || WINDOWS_ENABLED