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/***************************************************************************
* fqterm, a terminal emulator for both BBS and *nix. *
* Copyright (C) 2008 fqterm development group. *
* *
* This program is free software; you can redistribute it and/or modify *
* it under the terms of the GNU General Public License as published by *
* the Free Software Foundation; either version 2 of the License, or *
* (at your option) any later version. *
* *
* This program is distributed in the hope that it will be useful, *
* but WITHOUT ANY WARRANTY; without even the implied warranty of *
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
* GNU General Public License for more details. *
* *
* You should have received a copy of the GNU General Public License *
* along with this program; if not, write to the *
* Free Software Foundation, Inc., *
* 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. *
***************************************************************************/
#include "fqterm_trace.h"
#include "fqterm_ssh_buffer.h"
#include "fqterm_ssh_packet.h"
#include "fqterm_ssh_const.h"
#include "fqterm_serialization.h"
#include "crc32.h"
namespace FQTerm {
//==============================================================================
//FQTermSSHPacketSender
//==============================================================================
FQTermSSHPacketSender::FQTermSSHPacketSender() {
buffer_ = new FQTermSSHBuffer(1024);
output_buffer_ = new FQTermSSHBuffer(1024);
is_encrypt_ = false;
cipher_type_ = SSH_CIPHER_NONE;
cipher = NULL;
is_mac_ = false;
mac = NULL;
is_compressed_ = false;
sequence_no_ = 0;
}
FQTermSSHPacketSender::~FQTermSSHPacketSender() {
delete buffer_;
delete output_buffer_;
if (cipher)
cipher->cleanup(cipher);
if (mac)
mac->cleanup(mac);
}
void FQTermSSHPacketSender::putRawData(const char *data, int len) {
buffer_->putRawData(data, len);
}
void FQTermSSHPacketSender::putByte(int data) {
buffer_->putByte(data);
}
void FQTermSSHPacketSender::putInt(u_int data) {
buffer_->putInt(data);
}
void FQTermSSHPacketSender::putString(const char *string, int len) {
buffer_->putString(string, len);
}
void FQTermSSHPacketSender::putBN(BIGNUM *bn) {
buffer_->putSSH1BN(bn);
}
void FQTermSSHPacketSender::putBN2(BIGNUM *bn) {
buffer_->putSSH2BN(bn);
}
void FQTermSSHPacketSender::startPacket(int pkt_type) {
buffer_->clear();
buffer_->putByte(pkt_type);
}
void FQTermSSHPacketSender::write() {
makePacket();
emit dataToWrite();
}
void FQTermSSHPacketSender::startEncryption(const u_char *key, const u_char *IV) {
is_encrypt_ = true;
if (cipher!=NULL) {
memcpy(cipher->IV, IV, cipher->IVSize);
memcpy(cipher->key, key, cipher->keySize);
cipher->init(cipher);
}
}
void FQTermSSHPacketSender::resetEncryption() {
is_encrypt_ = false;
}
void FQTermSSHPacketSender::startMac(const u_char *key) {
is_mac_ = true;
memcpy(mac->key, key, mac->keySize);
}
void FQTermSSHPacketSender::resetMac() {
is_mac_ = false;
}
//==============================================================================
//FQTermSSHPacketReceiver
//==============================================================================
FQTermSSHPacketReceiver::FQTermSSHPacketReceiver() {
buffer_ = new FQTermSSHBuffer(1024);
is_decrypt_ = false;
cipher_type_ = SSH_CIPHER_NONE;
cipher = NULL;
is_mac_ = false;
mac = NULL;
is_compressed_ = false;
sequence_no_ = 0;
}
FQTermSSHPacketReceiver::~FQTermSSHPacketReceiver()
{
delete buffer_;
if (cipher)
cipher->cleanup(cipher);
if (mac)
mac->cleanup(mac);
}
void FQTermSSHPacketReceiver::getRawData(char *data, int length) {
buffer_->getRawData(data, length);
}
u_char FQTermSSHPacketReceiver::getByte() {
return buffer_->getByte();
}
u_int FQTermSSHPacketReceiver::getInt() {
return buffer_->getInt();
}
void *FQTermSSHPacketReceiver::getString(int *length) {
return buffer_->getString(length);
}
void FQTermSSHPacketReceiver::getBN(BIGNUM *bignum) {
buffer_->getSSH1BN(bignum);
}
void FQTermSSHPacketReceiver::getBN2(BIGNUM *bignum) {
buffer_->getSSH2BN(bignum);
}
void FQTermSSHPacketReceiver::consume(int len) {
buffer_->consume(len);
}
void FQTermSSHPacketReceiver::startEncryption(const u_char *key, const u_char *IV) {
is_decrypt_ = true;
if (cipher!=NULL) {
memcpy(cipher->IV, IV, cipher->IVSize);
memcpy(cipher->key, key, cipher->keySize);
cipher->init(cipher);
}
}
void FQTermSSHPacketReceiver::resetEncryption() {
is_decrypt_ = false;
}
void FQTermSSHPacketReceiver::startMac(const u_char *key) {
is_mac_ = true;
memcpy(mac->key, key, mac->keySize);
}
void FQTermSSHPacketReceiver::resetMac() {
is_mac_ = false;
}
} // namespace FQTerm
#include "fqterm_ssh_packet.moc"
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