SSH: Use OpenSSH tools

... instead of our own SSH library.

Advantages:
    - Full compatibility with OpenSSH behavior guaranteed.
    - Minimal maintenance effort.
    - Less code to build.
    - Big chunk of 3rd party sources can be removed from our repository.

One the downside, Windows users now need to install OpenSSH for
RemoteLinux support. Hoewever, people doing embedded development
probably have it installed anyway.

[ChangeLog] Switched SSH backend to OpenSSH

Fixes: QTCREATORBUG-15744
Fixes: QTCREATORBUG-15807
Fixes: QTCREATORBUG-19306
Fixes: QTCREATORBUG-20210
Change-Id: Ifcfefdd39401e45ba1f4aca35d2c5bf7046c7aab
Reviewed-by: Eike Ziller <eike.ziller@qt.io>
Reviewed-by: Ulf Hermann <ulf.hermann@qt.io>

1 files changed, 0 insertions, 170 deletions

diff --git a/src/libs/ssh/sshcapabilities.cpp b/src/libs/ssh/sshcapabilities.cpp
deleted file mode 100644
index ac0b4a55c2..0000000000
--- a/src/libs/ssh/sshcapabilities.cpp
+++ /dev/null
@@ -1,170 +0,0 @@
-/****************************************************************************
-**
-** Copyright (C) 2016 The Qt Company Ltd.
-** Contact: https://www.qt.io/licensing/
-**
-** This file is part of Qt Creator.
-**
-** Commercial License Usage
-** Licensees holding valid commercial Qt licenses may use this file in
-** accordance with the commercial license agreement provided with the
-** Software or, alternatively, in accordance with the terms contained in
-** a written agreement between you and The Qt Company. For licensing terms
-** and conditions see https://www.qt.io/terms-conditions. For further
-** information use the contact form at https://www.qt.io/contact-us.
-**
-** GNU General Public License Usage
-** Alternatively, this file may be used under the terms of the GNU
-** General Public License version 3 as published by the Free Software
-** Foundation with exceptions as appearing in the file LICENSE.GPL3-EXCEPT
-** included in the packaging of this file. Please review the following
-** information to ensure the GNU General Public License requirements will
-** be met: https://www.gnu.org/licenses/gpl-3.0.html.
-**
-****************************************************************************/
-
-#include "sshcapabilities_p.h"
-
-#include "sshexception_p.h"
-
-#include <QCoreApplication>
-#include <QString>
-
-namespace QSsh {
-namespace Internal {
-
-namespace {
-    QByteArray listAsByteArray(const QList<QByteArray> &list)
-    {
-        QByteArray array;
-        foreach (const QByteArray &elem, list)
-            array += elem + ',';
-        if (!array.isEmpty())
-            array.remove(array.count() - 1, 1);
-        return array;
-    }
-} // anonymous namspace
-
-const QByteArray SshCapabilities::DiffieHellmanGroup1Sha1("diffie-hellman-group1-sha1");
-const QByteArray SshCapabilities::DiffieHellmanGroup14Sha1("diffie-hellman-group14-sha1");
-const QByteArray SshCapabilities::EcdhKexNamePrefix("ecdh-sha2-nistp");
-const QByteArray SshCapabilities::EcdhNistp256 = EcdhKexNamePrefix + "256";
-const QByteArray SshCapabilities::EcdhNistp384 = EcdhKexNamePrefix + "384";
-const QByteArray SshCapabilities::EcdhNistp521 = EcdhKexNamePrefix + "521";
-const QList<QByteArray> SshCapabilities::KeyExchangeMethods = QList<QByteArray>()
-        << SshCapabilities::EcdhNistp256
-        << SshCapabilities::EcdhNistp384
-        << SshCapabilities::EcdhNistp521
-        << SshCapabilities::DiffieHellmanGroup1Sha1
-        << SshCapabilities::DiffieHellmanGroup14Sha1;
-
-const QByteArray SshCapabilities::PubKeyDss("ssh-dss");
-const QByteArray SshCapabilities::PubKeyRsa("ssh-rsa");
-const QByteArray SshCapabilities::PubKeyEcdsaPrefix("ecdsa-sha2-nistp");
-const QByteArray SshCapabilities::PubKeyEcdsa256 = SshCapabilities::PubKeyEcdsaPrefix + "256";
-const QByteArray SshCapabilities::PubKeyEcdsa384 = SshCapabilities::PubKeyEcdsaPrefix + "384";
-const QByteArray SshCapabilities::PubKeyEcdsa521 = SshCapabilities::PubKeyEcdsaPrefix + "521";
-const QList<QByteArray> SshCapabilities::PublicKeyAlgorithms = QList<QByteArray>()
-        << SshCapabilities::PubKeyEcdsa256
-        << SshCapabilities::PubKeyEcdsa384
-        << SshCapabilities::PubKeyEcdsa521
-        << SshCapabilities::PubKeyRsa
-        << SshCapabilities::PubKeyDss;
-
-const QByteArray SshCapabilities::CryptAlgo3DesCbc("3des-cbc");
-const QByteArray SshCapabilities::CryptAlgo3DesCtr("3des-ctr");
-const QByteArray SshCapabilities::CryptAlgoAes128Cbc("aes128-cbc");
-const QByteArray SshCapabilities::CryptAlgoAes128Ctr("aes128-ctr");
-const QByteArray SshCapabilities::CryptAlgoAes192Ctr("aes192-ctr");
-const QByteArray SshCapabilities::CryptAlgoAes256Ctr("aes256-ctr");
-const QList<QByteArray> SshCapabilities::EncryptionAlgorithms
-    = QList<QByteArray>() << SshCapabilities::CryptAlgoAes256Ctr
-                          << SshCapabilities::CryptAlgoAes192Ctr
-                          << SshCapabilities::CryptAlgoAes128Ctr
-                          << SshCapabilities::CryptAlgo3DesCtr
-                          << SshCapabilities::CryptAlgoAes128Cbc
-                          << SshCapabilities::CryptAlgo3DesCbc;
-
-const QByteArray SshCapabilities::HMacSha1("hmac-sha1");
-const QByteArray SshCapabilities::HMacSha196("hmac-sha1-96");
-const QByteArray SshCapabilities::HMacSha256("hmac-sha2-256");
-const QByteArray SshCapabilities::HMacSha384("hmac-sha2-384");
-const QByteArray SshCapabilities::HMacSha512("hmac-sha2-512");
-const QList<QByteArray> SshCapabilities::MacAlgorithms
-    = QList<QByteArray>() /* << SshCapabilities::HMacSha196 */
-        << SshCapabilities::HMacSha256
-        << SshCapabilities::HMacSha384
-        << SshCapabilities::HMacSha512
-        << SshCapabilities::HMacSha1;
-
-const QList<QByteArray> SshCapabilities::CompressionAlgorithms
-    = QList<QByteArray>() << "none";
-
-const QByteArray SshCapabilities::SshConnectionService("ssh-connection");
-
-QList<QByteArray> SshCapabilities::commonCapabilities(const QList<QByteArray> &myCapabilities,
-                                               const QList<QByteArray> &serverCapabilities)
-{
-    QList<QByteArray> capabilities;
-    foreach (const QByteArray &myCapability, myCapabilities) {
-        if (serverCapabilities.contains(myCapability))
-            capabilities << myCapability;
-    }
-
-    if (!capabilities.isEmpty())
-        return capabilities;
-
-    throw SshServerException(SSH_DISCONNECT_KEY_EXCHANGE_FAILED,
-        "Server and client capabilities do not match.",
-        QCoreApplication::translate("SshConnection",
-            "Server and client capabilities don't match. "
-            "Client list was: %1.\nServer list was %2.")
-            .arg(QString::fromLocal8Bit(listAsByteArray(myCapabilities).data()))
-            .arg(QString::fromLocal8Bit(listAsByteArray(serverCapabilities).data())));
-
-}
-
-QByteArray SshCapabilities::findBestMatch(const QList<QByteArray> &myCapabilities,
-    const QList<QByteArray> &serverCapabilities)
-{
-    return commonCapabilities(myCapabilities, serverCapabilities).first();
-}
-
-int SshCapabilities::ecdsaIntegerWidthInBytes(const QByteArray &ecdsaAlgo)
-{
-    if (ecdsaAlgo == PubKeyEcdsa256)
-        return 32;
-    if (ecdsaAlgo == PubKeyEcdsa384)
-        return 48;
-    if (ecdsaAlgo == PubKeyEcdsa521)
-        return 66;
-    throw SshClientException(SshInternalError, SSH_TR("Unexpected ecdsa algorithm \"%1\"")
-                             .arg(QString::fromLatin1(ecdsaAlgo)));
-}
-
-QByteArray SshCapabilities::ecdsaPubKeyAlgoForKeyWidth(int keyWidthInBytes)
-{
-    if (keyWidthInBytes <= 32)
-        return PubKeyEcdsa256;
-    if (keyWidthInBytes <= 48)
-        return PubKeyEcdsa384;
-    if (keyWidthInBytes <= 66)
-        return PubKeyEcdsa521;
-    throw SshClientException(SshInternalError, SSH_TR("Unexpected ecdsa key size (%1 bytes)")
-                             .arg(keyWidthInBytes));
-}
-
-const char *SshCapabilities::oid(const QByteArray &ecdsaAlgo)
-{
-    if (ecdsaAlgo == PubKeyEcdsa256)
-        return "secp256r1";
-    if (ecdsaAlgo == PubKeyEcdsa384)
-        return "secp384r1";
-    if (ecdsaAlgo == PubKeyEcdsa521)
-        return "secp521r1";
-    throw SshClientException(SshInternalError, SSH_TR("Unexpected ecdsa algorithm \"%1\"")
-                             .arg(QString::fromLatin1(ecdsaAlgo)));
-}
-
-} // namespace Internal
-} // namespace QSsh