Krystie
8615e6b46d
Merges the HD wallet work and process-based I2P integration from the SAMI-PC hd-wallet branch into v6 master. Conflict resolution keeps v6 embedded I2P (CI2PEmbedded) as primary, includes process-I2P files for reference, preserves FastImportBlockFile() from hd-wallet, and keeps v6 version numbers (6.0.0) and wAddressStack Qt layout.
237 lines
9.9 KiB
C++
237 lines
9.9 KiB
C++
// Copyright (c) 2009-2012 The Bitcoin developers
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// Distributed under the MIT/X11 software license, see the accompanying
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// file COPYING or http://www.opensource.org/licenses/mit-license.php.
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#ifndef TRIANGLES_NETBASE_H
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#define TRIANGLES_NETBASE_H
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#include <string>
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#include <vector>
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#include "serialize.h"
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#include "compat.h"
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extern int nConnectTimeout;
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#ifdef WIN32
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// In MSVC, this is defined as a macro, undefine it to prevent a compile and link error
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#undef SetPort
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#endif
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enum Network
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{
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NET_UNROUTABLE,
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NET_IPV4,
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NET_IPV6,
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NET_TOR,
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NET_I2P,
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NET_MAX,
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};
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extern int nConnectTimeout;
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extern int nSocksNegotiationTimeout;
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extern bool fNameLookup;
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// ═══════════════════════════════════════════════════════════════════════════════
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// v5.9.22 hardening: pure helper functions for the HTTPS seed-list path.
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// Extracted from net.cpp ThreadHTTPSeedFetch2 so they can be unit-tested
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// without the SSL/Tor network stack. All functions are side-effect free and
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// operate on std::string/std::vector<std::string> only.
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// ═══════════════════════════════════════════════════════════════════════════════
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/**
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* Result of dechunking an HTTP/1.1 chunked body. The daemon used to silently
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* treat malformed framing as a zero-length chunk, which dropped the entire
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* seed list. This enum lets the caller distinguish each failure mode and
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* surface it in logs.
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*/
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enum DechunkResult {
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DECHUNK_OK = 0, // success
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DECHUNK_EMPTY, // body is empty
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DECHUNK_NO_CHUNK_TERMINATOR, // missing CRLF after a chunk-size line
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DECHUNK_INVALID_HEX, // chunk-size line is not valid hex
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DECHUNK_OVERSIZE_CHUNK, // declared chunk size exceeds remaining input
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DECHUNK_MISSING_DATA_CRLF, // CRLF missing after a chunk's data
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};
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/**
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* Decode an HTTP/1.1 Transfer-Encoding: chunked body.
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*
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* chunked-body = *chunk last-chunk trailer-part CRLF
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* chunk = chunk-size [ chunk-ext ] CRLF chunk-data CRLF
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* chunk-size = 1*HEXDIG
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* last-chunk = 1*("0") [ chunk-ext ] CRLF
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* chunk-ext = *( ";" chunk-ext-name [ "=" chunk-ext-val ] )
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*
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* @param[in] body the raw body bytes after the header terminator
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* @param[out] decoded the dechunked payload on success
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* @return status code (DECHUNK_OK or one of the failure modes)
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*
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* The implementation is intentionally strict: a malformed hex digit, a
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* missing CRLF, or a chunk whose declared size is larger than the remaining
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* input all return an explicit error code rather than silently clamping.
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* Chunk extensions ("a;foo=bar") are preserved (stripped from the size
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* line) so legitimate servers that attach metadata to chunks are still
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* accepted.
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*/
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int DechunkTransferEncoding(const std::string& body, std::string& decoded);
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/**
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* Parse a tolerant HTTPS seed-list body into individual host entries.
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*
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* Accepted per line:
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* - one or more addresses separated by whitespace, commas, or semicolons
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* - inline "#" comments (everything after '#' is dropped)
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* - blank lines
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* - CRLF or LF line endings
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*
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* Each returned entry is the address string (e.g. "abcd...onion:24112" or
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* "abcd...onion"). Empty/whitespace-only entries are omitted. The result is
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* a list of candidate strings suitable for CNetAddr/CService validation
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* downstream.
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*/
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std::vector<std::string> ParseSeedListBody(const std::string& body);
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/**
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* Validate the -torconnecttimeout / nSocksNegotiationTimeout value.
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*
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* Accepts 5000..180000 ms inclusive. Returns true for in-range, false for
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* out-of-range. This is the central policy so callers and tests stay in
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* sync; do not duplicate the literal numbers elsewhere.
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*/
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bool IsValidSocksNegotiationTimeout(int nMs);
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/** IP address (IPv6, or IPv4 using mapped IPv6 range (::FFFF:0:0/96)) */
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class CNetAddr
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{
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protected:
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unsigned char ip[16]; // in network byte order
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// For Tor v3 this holds the 32-byte Ed25519 public key. When m_is_i2p is
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// set it instead holds the 32-byte SHA-256 of the I2P destination (the
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// value rendered as the ".b32.i2p" address). A CNetAddr is never both.
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unsigned char tor_v3_pubkey[32];
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bool m_is_tor_v3;
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bool m_is_i2p;
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public:
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CNetAddr();
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CNetAddr(const struct in_addr& ipv4Addr);
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explicit CNetAddr(const char *pszIp, bool fAllowLookup = false);
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explicit CNetAddr(const std::string &strIp, bool fAllowLookup = false);
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void Init();
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void SetIP(const CNetAddr& ip);
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bool SetSpecial(const std::string &strName); // for Tor and I2P addresses
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bool IsIPv4() const; // IPv4 mapped address (::FFFF:0:0/96, 0.0.0.0/0)
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bool IsIPv6() const; // IPv6 address (not mapped IPv4, not Tor/I2P)
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bool IsRFC1918() const; // IPv4 private networks (10.0.0.0/8, 192.168.0.0/16, 172.16.0.0/12)
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bool IsRFC3849() const; // IPv6 documentation address (2001:0DB8::/32)
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bool IsRFC3927() const; // IPv4 autoconfig (169.254.0.0/16)
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bool IsRFC3964() const; // IPv6 6to4 tunnelling (2002::/16)
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bool IsRFC4193() const; // IPv6 unique local (FC00::/15)
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bool IsRFC4380() const; // IPv6 Teredo tunnelling (2001::/32)
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bool IsRFC4843() const; // IPv6 ORCHID (2001:10::/28)
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bool IsRFC4862() const; // IPv6 autoconfig (FE80::/64)
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bool IsRFC6052() const; // IPv6 well-known prefix (64:FF9B::/96)
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bool IsRFC6145() const; // IPv6 IPv4-translated address (::FFFF:0:0:0/96)
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bool IsTor() const;
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bool IsTorV3() const;
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bool IsI2P() const;
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bool IsLocal() const;
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bool IsRoutable() const;
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bool IsValid() const;
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bool IsMulticast() const;
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enum Network GetNetwork() const;
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std::string ToString() const;
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std::string ToStringIP() const;
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unsigned int GetByte(int n) const;
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uint64_t GetHash() const;
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bool GetInAddr(struct in_addr* pipv4Addr) const;
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std::vector<unsigned char> GetGroup() const;
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int GetReachabilityFrom(const CNetAddr *paddrPartner = NULL) const;
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void print() const;
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#ifdef USE_IPV6
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CNetAddr(const struct in6_addr& pipv6Addr);
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bool GetIn6Addr(struct in6_addr* pipv6Addr) const;
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#endif
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friend bool operator==(const CNetAddr& a, const CNetAddr& b);
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friend bool operator!=(const CNetAddr& a, const CNetAddr& b);
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friend bool operator<(const CNetAddr& a, const CNetAddr& b);
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IMPLEMENT_SERIALIZE
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(
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READWRITE(FLATDATA(ip));
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READWRITE(FLATDATA(tor_v3_pubkey));
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READWRITE(m_is_tor_v3);
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READWRITE(m_is_i2p);
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)
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};
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/** A combination of a network address (CNetAddr) and a (TCP) port */
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class CService : public CNetAddr
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{
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protected:
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unsigned short port; // host order
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public:
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CService();
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CService(const CNetAddr& ip, unsigned short port);
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CService(const struct in_addr& ipv4Addr, unsigned short port);
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CService(const struct sockaddr_in& addr);
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explicit CService(const char *pszIpPort, int portDefault, bool fAllowLookup = false);
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explicit CService(const char *pszIpPort, bool fAllowLookup = false);
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explicit CService(const std::string& strIpPort, int portDefault, bool fAllowLookup = false);
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explicit CService(const std::string& strIpPort, bool fAllowLookup = false);
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void Init();
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void SetPort(unsigned short portIn);
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unsigned short GetPort() const;
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bool GetSockAddr(struct sockaddr* paddr, socklen_t *addrlen) const;
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bool SetSockAddr(const struct sockaddr* paddr);
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friend bool operator==(const CService& a, const CService& b);
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friend bool operator!=(const CService& a, const CService& b);
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friend bool operator<(const CService& a, const CService& b);
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std::vector<unsigned char> GetKey() const;
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std::string ToString() const;
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std::string ToStringPort() const;
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std::string ToStringIPPort() const;
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void print() const;
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#ifdef USE_IPV6
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CService(const struct in6_addr& ipv6Addr, unsigned short port);
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CService(const struct sockaddr_in6& addr);
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#endif
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IMPLEMENT_SERIALIZE
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(
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CService* pthis = const_cast<CService*>(this);
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READWRITE(FLATDATA(ip));
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READWRITE(FLATDATA(tor_v3_pubkey));
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READWRITE(m_is_tor_v3);
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READWRITE(m_is_i2p);
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unsigned short portN = htons(port);
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READWRITE(portN);
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if (fRead)
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pthis->port = ntohs(portN);
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)
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};
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typedef std::pair<CService, int> proxyType;
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enum Network ParseNetwork(std::string net);
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void SplitHostPort(std::string in, int &portOut, std::string &hostOut);
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bool SetProxy(enum Network net, CService addrProxy, int nSocksVersion = 5);
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bool GetProxy(enum Network net, proxyType &proxyInfoOut);
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bool IsProxy(const CNetAddr &addr);
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bool SetNameProxy(CService addrProxy, int nSocksVersion = 5);
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bool HaveNameProxy();
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bool LookupHost(const char *pszName, std::vector<CNetAddr>& vIP, unsigned int nMaxSolutions = 0, bool fAllowLookup = true);
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bool LookupHostNumeric(const char *pszName, std::vector<CNetAddr>& vIP, unsigned int nMaxSolutions = 0);
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bool Lookup(const char *pszName, CService& addr, int portDefault = 0, bool fAllowLookup = true);
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bool Lookup(const char *pszName, std::vector<CService>& vAddr, int portDefault = 0, bool fAllowLookup = true, unsigned int nMaxSolutions = 0);
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bool LookupNumeric(const char *pszName, CService& addr, int portDefault = 0);
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bool ConnectSocket(const CService &addr, SOCKET& hSocketRet, int nTimeout = nConnectTimeout);
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bool ConnectSocketByName(CService &addr, SOCKET& hSocketRet, const char *pszDest, int portDefault = 0, int nTimeout = nConnectTimeout);
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#endif
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