108 lines
2.8 KiB
C++
108 lines
2.8 KiB
C++
/* XMRig
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* Copyright 2018-2020 SChernykh <https://github.com/SChernykh>
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* Copyright 2016-2020 XMRig <https://github.com/xmrig>, <support@xmrig.com>
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include "base/net/stratum/Socks5.h"
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xmrig::Client::Socks5::Socks5(Client *client) :
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m_client(client)
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{
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}
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bool xmrig::Client::Socks5::read(const char *data, size_t size)
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{
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if (size < m_nextSize) {
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return false;
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}
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if (data[0] == 0x05 && data[1] == 0x00) {
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if (m_state == SentInitialHandshake) {
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connect();
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}
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else {
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m_state = Ready;
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}
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}
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else {
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m_client->close();
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}
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return true;
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}
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void xmrig::Client::Socks5::handshake()
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{
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m_nextSize = 2;
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m_state = SentInitialHandshake;
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char buf[3] = { 0x05, 0x01, 0x00 };
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m_client->write(uv_buf_init(buf, sizeof (buf)));
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}
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bool xmrig::Client::Socks5::isIPv4(const String &host, sockaddr_storage *addr)
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{
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return uv_ip4_addr(host.data(), 0, reinterpret_cast<sockaddr_in *>(addr)) == 0;
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}
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bool xmrig::Client::Socks5::isIPv6(const String &host, sockaddr_storage *addr)
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{
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return uv_ip6_addr(host.data(), 0, reinterpret_cast<sockaddr_in6 *>(addr)) == 0;
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}
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void xmrig::Client::Socks5::connect()
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{
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m_nextSize = 5;
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m_state = SentFinalHandshake;
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const auto &host = m_client->pool().host();
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std::vector<uint8_t> buf;
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sockaddr_storage addr{};
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if (isIPv4(host, &addr)) {
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buf.resize(10);
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buf[3] = 0x01;
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memcpy(buf.data() + 4, &reinterpret_cast<sockaddr_in *>(&addr)->sin_addr, 4);
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}
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else if (isIPv6(host, &addr)) {
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buf.resize(22);
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buf[3] = 0x04;
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memcpy(buf.data() + 4, &reinterpret_cast<sockaddr_in6 *>(&addr)->sin6_addr, 16);
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}
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else {
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buf.resize(host.size() + 7);
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buf[3] = 0x03;
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buf[4] = static_cast<uint8_t>(host.size());
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memcpy(buf.data() + 5, host.data(), host.size());
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}
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buf[0] = 0x05;
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buf[1] = 0x01;
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buf[2] = 0x00;
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const uint16_t port = htons(m_client->pool().port());
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memcpy(buf.data() + (buf.size() - sizeof(port)), &port, sizeof(port));
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m_client->write(uv_buf_init(reinterpret_cast<char *>(buf.data()), buf.size()));
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}
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