diff options
Diffstat (limited to 'src/netaddress.cpp')
| -rw-r--r-- | src/netaddress.cpp | 82 |
1 files changed, 30 insertions, 52 deletions
diff --git a/src/netaddress.cpp b/src/netaddress.cpp index 112e216c09..e7b3377475 100644 --- a/src/netaddress.cpp +++ b/src/netaddress.cpp @@ -32,14 +32,7 @@ CNetAddr::BIP155Network CNetAddr::GetBIP155Network() const case NET_IPV6: return BIP155Network::IPV6; case NET_ONION: - switch (m_addr.size()) { - case ADDR_TORV2_SIZE: - return BIP155Network::TORV2; - case ADDR_TORV3_SIZE: - return BIP155Network::TORV3; - default: - assert(false); - } + return BIP155Network::TORV3; case NET_I2P: return BIP155Network::I2P; case NET_CJDNS: @@ -72,14 +65,6 @@ bool CNetAddr::SetNetFromBIP155Network(uint8_t possible_bip155_net, size_t addre throw std::ios_base::failure( strprintf("BIP155 IPv6 address with length %u (should be %u)", address_size, ADDR_IPV6_SIZE)); - case BIP155Network::TORV2: - if (address_size == ADDR_TORV2_SIZE) { - m_net = NET_ONION; - return true; - } - throw std::ios_base::failure( - strprintf("BIP155 TORv2 address with length %u (should be %u)", address_size, - ADDR_TORV2_SIZE)); case BIP155Network::TORV3: if (address_size == ADDR_TORV3_SIZE) { m_net = NET_ONION; @@ -130,7 +115,7 @@ void CNetAddr::SetIP(const CNetAddr& ipIn) assert(ipIn.m_addr.size() == ADDR_IPV6_SIZE); break; case NET_ONION: - assert(ipIn.m_addr.size() == ADDR_TORV2_SIZE || ipIn.m_addr.size() == ADDR_TORV3_SIZE); + assert(ipIn.m_addr.size() == ADDR_TORV3_SIZE); break; case NET_I2P: assert(ipIn.m_addr.size() == ADDR_I2P_SIZE); @@ -161,9 +146,12 @@ void CNetAddr::SetLegacyIPv6(Span<const uint8_t> ipv6) m_net = NET_IPV4; skip = sizeof(IPV4_IN_IPV6_PREFIX); } else if (HasPrefix(ipv6, TORV2_IN_IPV6_PREFIX)) { - // TORv2-in-IPv6 - m_net = NET_ONION; - skip = sizeof(TORV2_IN_IPV6_PREFIX); + // TORv2-in-IPv6 (unsupported). Unserialize as !IsValid(), thus ignoring them. + // Mimic a default-constructed CNetAddr object which is !IsValid() and thus + // will not be gossiped, but continue reading next addresses from the stream. + m_net = NET_IPV6; + m_addr.assign(ADDR_IPV6_SIZE, 0x0); + return; } else if (HasPrefix(ipv6, INTERNAL_IN_IPV6_PREFIX)) { // Internal-in-IPv6 m_net = NET_INTERNAL; @@ -254,12 +242,7 @@ bool CNetAddr::SetTor(const std::string& addr) return false; } - switch (input.size()) { - case ADDR_TORV2_SIZE: - m_net = NET_ONION; - m_addr.assign(input.begin(), input.end()); - return true; - case torv3::TOTAL_LEN: { + if (input.size() == torv3::TOTAL_LEN) { Span<const uint8_t> input_pubkey{input.data(), ADDR_TORV3_SIZE}; Span<const uint8_t> input_checksum{input.data() + ADDR_TORV3_SIZE, torv3::CHECKSUM_LEN}; Span<const uint8_t> input_version{input.data() + ADDR_TORV3_SIZE + torv3::CHECKSUM_LEN, sizeof(torv3::VERSION)}; @@ -279,7 +262,6 @@ bool CNetAddr::SetTor(const std::string& addr) m_addr.assign(input_pubkey.begin(), input_pubkey.end()); return true; } - } return false; } @@ -507,7 +489,7 @@ bool CNetAddr::IsValid() const */ bool CNetAddr::IsRoutable() const { - return IsValid() && !(IsRFC1918() || IsRFC2544() || IsRFC3927() || IsRFC4862() || IsRFC6598() || IsRFC5737() || (IsRFC4193() && !IsTor()) || IsRFC4843() || IsRFC7343() || IsLocal() || IsInternal()); + return IsValid() && !(IsRFC1918() || IsRFC2544() || IsRFC3927() || IsRFC4862() || IsRFC6598() || IsRFC5737() || IsRFC4193() || IsRFC4843() || IsRFC7343() || IsLocal() || IsInternal()); } /** @@ -528,7 +510,6 @@ bool CNetAddr::IsAddrV1Compatible() const case NET_INTERNAL: return true; case NET_ONION: - return m_addr.size() == ADDR_TORV2_SIZE; case NET_I2P: case NET_CJDNS: return false; @@ -558,7 +539,7 @@ static std::string IPv4ToString(Span<const uint8_t> a) // Return an IPv6 address text representation with zero compression as described in RFC 5952 // ("A Recommendation for IPv6 Address Text Representation"). -static std::string IPv6ToString(Span<const uint8_t> a) +static std::string IPv6ToString(Span<const uint8_t> a, uint32_t scope_id) { assert(a.size() == ADDR_IPV6_SIZE); const std::array groups{ @@ -606,40 +587,37 @@ static std::string IPv6ToString(Span<const uint8_t> a) r += strprintf("%s%x", ((!r.empty() && r.back() != ':') ? ":" : ""), groups[i]); } + if (scope_id != 0) { + r += strprintf("%%%u", scope_id); + } + return r; } +static std::string OnionToString(Span<const uint8_t> addr) +{ + uint8_t checksum[torv3::CHECKSUM_LEN]; + torv3::Checksum(addr, checksum); + // TORv3 onion_address = base32(PUBKEY | CHECKSUM | VERSION) + ".onion" + prevector<torv3::TOTAL_LEN, uint8_t> address{addr.begin(), addr.end()}; + address.insert(address.end(), checksum, checksum + torv3::CHECKSUM_LEN); + address.insert(address.end(), torv3::VERSION, torv3::VERSION + sizeof(torv3::VERSION)); + return EncodeBase32(address) + ".onion"; +} + std::string CNetAddr::ToStringIP() const { switch (m_net) { case NET_IPV4: return IPv4ToString(m_addr); - case NET_IPV6: { - return IPv6ToString(m_addr); - } + case NET_IPV6: + return IPv6ToString(m_addr, m_scope_id); case NET_ONION: - switch (m_addr.size()) { - case ADDR_TORV2_SIZE: - return EncodeBase32(m_addr) + ".onion"; - case ADDR_TORV3_SIZE: { - - uint8_t checksum[torv3::CHECKSUM_LEN]; - torv3::Checksum(m_addr, checksum); - - // TORv3 onion_address = base32(PUBKEY | CHECKSUM | VERSION) + ".onion" - prevector<torv3::TOTAL_LEN, uint8_t> address{m_addr.begin(), m_addr.end()}; - address.insert(address.end(), checksum, checksum + torv3::CHECKSUM_LEN); - address.insert(address.end(), torv3::VERSION, torv3::VERSION + sizeof(torv3::VERSION)); - - return EncodeBase32(address) + ".onion"; - } - default: - assert(false); - } + return OnionToString(m_addr); case NET_I2P: return EncodeBase32(m_addr, false /* don't pad with = */) + ".b32.i2p"; case NET_CJDNS: - return IPv6ToString(m_addr); + return IPv6ToString(m_addr, 0); case NET_INTERNAL: return EncodeBase32(m_addr) + ".internal"; case NET_UNROUTABLE: // m_net is never and should not be set to NET_UNROUTABLE |