mirror of
https://github.com/oxen-io/lokinet
synced 2023-12-14 06:53:00 +01:00
f168b7cf72
It didn't do equality, it did "does the remaining space start with the argument" (and so the replacement in the previous commit was broken). This renames it to avoid the confusion and restores to what it was doing on dev.
125 lines
2.9 KiB
C++
125 lines
2.9 KiB
C++
#ifndef _WIN32
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#include <arpa/inet.h>
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#endif
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#include "exit_info.hpp"
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#include "net.hpp"
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#include <llarp/util/bencode.h>
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#include <llarp/util/bits.hpp>
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#include <llarp/util/mem.h>
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#include <list>
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#include <cstring>
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namespace llarp
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{
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bool
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ExitInfo::BEncode(llarp_buffer_t* buf) const
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{
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SockAddr exitaddr = ipAddress.createSockAddr();
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const auto* exitaddr6 = static_cast<const sockaddr_in6*>(exitaddr);
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SockAddr netmaskaddr = netmask.createSockAddr();
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const auto* netmaskaddr6 = static_cast<const sockaddr_in6*>(netmaskaddr);
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char tmp[128] = {0};
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if (!bencode_start_dict(buf))
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return false;
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if (!inet_ntop(AF_INET6, &exitaddr6->sin6_addr, tmp, sizeof(tmp)))
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return false;
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if (!BEncodeWriteDictString("a", std::string(tmp), buf))
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return false;
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if (!inet_ntop(AF_INET6, &netmaskaddr6->sin6_addr, tmp, sizeof(tmp)))
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return false;
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if (!BEncodeWriteDictString("b", std::string(tmp), buf))
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return false;
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if (!BEncodeWriteDictEntry("k", pubkey, buf))
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return false;
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if (!BEncodeWriteDictInt("v", version, buf))
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return false;
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return bencode_end(buf);
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}
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static bool
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bdecode_ip_string(llarp_buffer_t* buf, in6_addr& ip)
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{
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char tmp[128] = {0};
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llarp_buffer_t strbuf;
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if (!bencode_read_string(buf, &strbuf))
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return false;
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if (strbuf.sz >= sizeof(tmp))
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return false;
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memcpy(tmp, strbuf.base, strbuf.sz);
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tmp[strbuf.sz] = 0;
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return inet_pton(AF_INET6, tmp, &ip.s6_addr[0]) == 1;
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}
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bool
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ExitInfo::DecodeKey(const llarp_buffer_t& k, llarp_buffer_t* buf)
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{
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bool read = false;
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if (!BEncodeMaybeReadDictEntry("k", pubkey, read, k, buf))
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return false;
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if (!BEncodeMaybeReadDictInt("v", version, read, k, buf))
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return false;
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if (k.startswith("a"))
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{
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in6_addr tmp;
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if (not bdecode_ip_string(buf, tmp))
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return false;
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SockAddr addr(tmp);
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ipAddress = IpAddress(addr);
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return true;
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}
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if (k.startswith("b"))
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{
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in6_addr tmp;
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if (not bdecode_ip_string(buf, tmp))
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return false;
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SockAddr addr(tmp);
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netmask = IpAddress(addr);
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return true;
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}
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return read;
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}
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std::string
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ExitInfo::ToString() const
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{
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/*
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// TODO: derive these from ipAdress
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throw std::runtime_error("FIXME: need in6_addr and netmask from IpAddress");
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in6_addr address;
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in6_addr netmask;
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Printer printer(stream, level, spaces);
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std::ostringstream ss;
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char tmp[128] = {0};
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if (inet_ntop(AF_INET6, (void*)&address, tmp, sizeof(tmp)))
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ss << tmp;
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else
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return stream;
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ss << std::string("/");
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#if defined(ANDROID)
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snprintf(tmp, sizeof(tmp), "%zu", llarp::bits::count_array_bits(netmask.s6_addr));
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ss << tmp;
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#else
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ss << std::to_string(llarp::bits::count_array_bits(netmask.s6_addr));
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#endif
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printer.printValue(ss.str());
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*/
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return fmt::format("[Exit {}]", ipAddress.ToString());
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}
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} // namespace llarp
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