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fix: apply WG interface params on hot-swap

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This commit is contained in:
cd-amn
2026-05-06 18:43:56 +04:00
parent ce754d45e9
commit 5134d479f7
3 changed files with 89 additions and 81 deletions
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71
client/platforms/linux/daemon/wireguardutilslinux.cpp
View File

@@ -25,6 +25,34 @@ constexpr const char* WG_RUNTIME_DIR = "/var/run/amneziawg";
namespace {
Logger logger("WireguardUtilsLinux");
Logger logwireguard("WireguardGo");
bool appendAwgInterfaceParams(const InterfaceConfig& config, QTextStream& out) {
bool hasParams = false;
const auto appendField = [&](const char* key, const QString& value) {
if (!value.isEmpty()) {
out << key << "=" << value << "\n";
hasParams = true;
}
};
appendField("jc", config.m_junkPacketCount);
appendField("jmin", config.m_junkPacketMinSize);
appendField("jmax", config.m_junkPacketMaxSize);
appendField("s1", config.m_initPacketJunkSize);
appendField("s2", config.m_responsePacketJunkSize);
appendField("s3", config.m_cookieReplyPacketJunkSize);
appendField("s4", config.m_transportPacketJunkSize);
appendField("h1", config.m_initPacketMagicHeader);
appendField("h2", config.m_responsePacketMagicHeader);
appendField("h3", config.m_underloadPacketMagicHeader);
appendField("h4", config.m_transportPacketMagicHeader);
for (const QString& key : config.m_specialJunk.keys()) {
out << key.toLower() << "=" << config.m_specialJunk.value(key) << "\n";
hasParams = true;
}
return hasParams;
}
}; // namespace
WireguardUtilsLinux::WireguardUtilsLinux(QObject* parent)
@@ -59,7 +87,6 @@ void WireguardUtilsLinux::tunnelErrorOccurred(QProcess::ProcessError error) {
}
bool WireguardUtilsLinux::addInterface(const InterfaceConfig& config) {
Q_UNUSED(config);
if (m_tunnel.state() != QProcess::NotRunning) {
logger.warning() << "Unable to start: tunnel process already running";
return false;
@@ -104,45 +131,7 @@ bool WireguardUtilsLinux::addInterface(const InterfaceConfig& config) {
QTextStream out(&message);
out << "private_key=" << QString(privateKey.toHex()) << "\n";
out << "replace_peers=true\n";
if (!config.m_junkPacketCount.isEmpty()) {
out << "jc=" << config.m_junkPacketCount << "\n";
}
if (!config.m_junkPacketMinSize.isEmpty()) {
out << "jmin=" << config.m_junkPacketMinSize << "\n";
}
if (!config.m_junkPacketMaxSize.isEmpty()) {
out << "jmax=" << config.m_junkPacketMaxSize << "\n";
}
if (!config.m_initPacketJunkSize.isEmpty()) {
out << "s1=" << config.m_initPacketJunkSize << "\n";
}
if (!config.m_responsePacketJunkSize.isEmpty()) {
out << "s2=" << config.m_responsePacketJunkSize << "\n";
}
if (!config.m_cookieReplyPacketJunkSize.isEmpty()) {
out << "s3=" << config.m_cookieReplyPacketJunkSize << "\n";
}
if (!config.m_transportPacketJunkSize.isEmpty()) {
out << "s4=" << config.m_transportPacketJunkSize << "\n";
}
if (!config.m_initPacketMagicHeader.isEmpty()) {
out << "h1=" << config.m_initPacketMagicHeader << "\n";
}
if (!config.m_responsePacketMagicHeader.isEmpty()) {
out << "h2=" << config.m_responsePacketMagicHeader << "\n";
}
if (!config.m_underloadPacketMagicHeader.isEmpty()) {
out << "h3=" << config.m_underloadPacketMagicHeader << "\n";
}
if (!config.m_transportPacketMagicHeader.isEmpty()) {
out << "h4=" << config.m_transportPacketMagicHeader << "\n";
}
for (const QString& key : config.m_specialJunk.keys()) {
out << key.toLower() << "=" << config.m_specialJunk.value(key) << "\n";
}
appendAwgInterfaceParams(config, out);
int err = uapiErrno(uapiCommand(message));
if (err != 0) {
@@ -201,7 +190,6 @@ bool WireguardUtilsLinux::deleteInterface() {
return true;
}
// dummy implementations for now
bool WireguardUtilsLinux::updatePeer(const InterfaceConfig& config) {
QByteArray publicKey =
QByteArray::fromBase64(qPrintable(config.m_serverPublicKey));
@@ -214,6 +202,7 @@ bool WireguardUtilsLinux::updatePeer(const InterfaceConfig& config) {
QString message;
QTextStream out(&message);
out << "set=1\n";
appendAwgInterfaceParams(config, out);
out << "public_key=" << QString(publicKey.toHex()) << "\n";
if (!config.m_serverPskKey.isNull()) {
out << "preshared_key=" << QString(pskKey.toHex()) << "\n";

70
client/platforms/macos/daemon/wireguardutilsmacos.cpp
View File

@@ -24,6 +24,34 @@ constexpr const char* WG_RUNTIME_DIR = "/var/run/amneziawg";
namespace {
Logger logger("WireguardUtilsMacos");
Logger logwireguard("WireguardGo");
bool appendAwgInterfaceParams(const InterfaceConfig& config, QTextStream& out) {
bool hasParams = false;
const auto appendField = [&](const char* key, const QString& value) {
if (!value.isEmpty()) {
out << key << "=" << value << "\n";
hasParams = true;
}
};
appendField("jc", config.m_junkPacketCount);
appendField("jmin", config.m_junkPacketMinSize);
appendField("jmax", config.m_junkPacketMaxSize);
appendField("s1", config.m_initPacketJunkSize);
appendField("s2", config.m_responsePacketJunkSize);
appendField("s3", config.m_cookieReplyPacketJunkSize);
appendField("s4", config.m_transportPacketJunkSize);
appendField("h1", config.m_initPacketMagicHeader);
appendField("h2", config.m_responsePacketMagicHeader);
appendField("h3", config.m_underloadPacketMagicHeader);
appendField("h4", config.m_transportPacketMagicHeader);
for (const QString& key : config.m_specialJunk.keys()) {
out << key.toLower() << "=" << config.m_specialJunk.value(key) << "\n";
hasParams = true;
}
return hasParams;
}
}; // namespace
WireguardUtilsMacos::WireguardUtilsMacos(QObject* parent)
@@ -58,7 +86,6 @@ void WireguardUtilsMacos::tunnelErrorOccurred(QProcess::ProcessError error) {
}
bool WireguardUtilsMacos::addInterface(const InterfaceConfig& config) {
Q_UNUSED(config);
if (m_tunnel.state() != QProcess::NotRunning) {
logger.warning() << "Unable to start: tunnel process already running";
return false;
@@ -103,44 +130,7 @@ bool WireguardUtilsMacos::addInterface(const InterfaceConfig& config) {
QTextStream out(&message);
out << "private_key=" << QString(privateKey.toHex()) << "\n";
out << "replace_peers=true\n";
if (!config.m_junkPacketCount.isEmpty()) {
out << "jc=" << config.m_junkPacketCount << "\n";
}
if (!config.m_junkPacketMinSize.isEmpty()) {
out << "jmin=" << config.m_junkPacketMinSize << "\n";
}
if (!config.m_junkPacketMaxSize.isEmpty()) {
out << "jmax=" << config.m_junkPacketMaxSize << "\n";
}
if (!config.m_initPacketJunkSize.isEmpty()) {
out << "s1=" << config.m_initPacketJunkSize << "\n";
}
if (!config.m_responsePacketJunkSize.isEmpty()) {
out << "s2=" << config.m_responsePacketJunkSize << "\n";
}
if (!config.m_cookieReplyPacketJunkSize.isEmpty()) {
out << "s3=" << config.m_cookieReplyPacketJunkSize << "\n";
}
if (!config.m_transportPacketJunkSize.isEmpty()) {
out << "s4=" << config.m_transportPacketJunkSize << "\n";
}
if (!config.m_initPacketMagicHeader.isEmpty()) {
out << "h1=" << config.m_initPacketMagicHeader << "\n";
}
if (!config.m_responsePacketMagicHeader.isEmpty()) {
out << "h2=" << config.m_responsePacketMagicHeader << "\n";
}
if (!config.m_underloadPacketMagicHeader.isEmpty()) {
out << "h3=" << config.m_underloadPacketMagicHeader << "\n";
}
if (!config.m_transportPacketMagicHeader.isEmpty()) {
out << "h4=" << config.m_transportPacketMagicHeader << "\n";
}
for (const QString& key : config.m_specialJunk.keys()) {
out << key.toLower() << "=" << config.m_specialJunk.value(key) << "\n";
}
appendAwgInterfaceParams(config, out);
int err = uapiErrno(uapiCommand(message));
if (err != 0) {
@@ -200,7 +190,6 @@ bool WireguardUtilsMacos::deleteInterface() {
return true;
}
// dummy implementations for now
bool WireguardUtilsMacos::updatePeer(const InterfaceConfig& config) {
QByteArray publicKey =
QByteArray::fromBase64(qPrintable(config.m_serverPublicKey));
@@ -214,6 +203,7 @@ bool WireguardUtilsMacos::updatePeer(const InterfaceConfig& config) {
QString message;
QTextStream out(&message);
out << "set=1\n";
appendAwgInterfaceParams(config, out);
out << "public_key=" << QString(publicKey.toHex()) << "\n";
if (!config.m_serverPskKey.isNull()) {
out << "preshared_key=" << QString(pskKey.toHex()) << "\n";

29
client/platforms/windows/daemon/wireguardutilswindows.cpp
View File

@@ -20,6 +20,34 @@
namespace {
Logger logger("WireguardUtilsWindows");
bool appendAwgInterfaceParams(const InterfaceConfig& config, QTextStream& out) {
bool hasParams = false;
const auto appendField = [&](const char* key, const QString& value) {
if (!value.isEmpty()) {
out << key << "=" << value << "\n";
hasParams = true;
}
};
appendField("jc", config.m_junkPacketCount);
appendField("jmin", config.m_junkPacketMinSize);
appendField("jmax", config.m_junkPacketMaxSize);
appendField("s1", config.m_initPacketJunkSize);
appendField("s2", config.m_responsePacketJunkSize);
appendField("s3", config.m_cookieReplyPacketJunkSize);
appendField("s4", config.m_transportPacketJunkSize);
appendField("h1", config.m_initPacketMagicHeader);
appendField("h2", config.m_responsePacketMagicHeader);
appendField("h3", config.m_underloadPacketMagicHeader);
appendField("h4", config.m_transportPacketMagicHeader);
for (const QString& key : config.m_specialJunk.keys()) {
out << key.toLower() << "=" << config.m_specialJunk.value(key) << "\n";
hasParams = true;
}
return hasParams;
}
}; // namespace
std::unique_ptr<WireguardUtilsWindows> WireguardUtilsWindows::create(
@@ -165,6 +193,7 @@ bool WireguardUtilsWindows::updatePeer(const InterfaceConfig& config) {
QString message;
QTextStream out(&message);
out << "set=1\n";
appendAwgInterfaceParams(config, out);
out << "public_key=" << QString(publicKey.toHex()) << "\n";
if (!config.m_serverPskKey.isNull()) {
out << "preshared_key=" << QString(pskKey.toHex()) << "\n";