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lightningnetwork / lnd / 15561477203

10 Jun 2025 01:54PM UTC coverage: 58.351% (-10.1%) from 68.487%
15561477203

Pull #9356

github

web-flow
Merge 6440b25db into c6d6d4c0b
Pull Request #9356: lnrpc: add incoming/outgoing channel ids filter to forwarding history request

33 of 36 new or added lines in 2 files covered. (91.67%)

28366 existing lines in 455 files now uncovered.

97715 of 167461 relevant lines covered (58.35%)

1.81 hits per line

Source File
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0.0
/channeldb/migration_01_to_11/addr.go
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package migration_01_to_11
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import (
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        "encoding/binary"
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        "errors"
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        "fmt"
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        "io"
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        "net"
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        "github.com/lightningnetwork/lnd/tor"
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)
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// addressType specifies the network protocol and version that should be used
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// when connecting to a node at a particular address.
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type addressType uint8
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const (
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        // tcp4Addr denotes an IPv4 TCP address.
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        tcp4Addr addressType = 0
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        // tcp6Addr denotes an IPv6 TCP address.
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        tcp6Addr addressType = 1
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        // v2OnionAddr denotes a version 2 Tor onion service address.
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        v2OnionAddr addressType = 2
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        // v3OnionAddr denotes a version 3 Tor (prop224) onion service address.
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        v3OnionAddr addressType = 3
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)
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// encodeTCPAddr serializes a TCP address into its compact raw bytes
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// representation.
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func encodeTCPAddr(w io.Writer, addr *net.TCPAddr) error {
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        var (
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                addrType byte
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                ip       []byte
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        )
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        if addr.IP.To4() != nil {
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                addrType = byte(tcp4Addr)
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                ip = addr.IP.To4()
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        } else {
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                addrType = byte(tcp6Addr)
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                ip = addr.IP.To16()
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        }
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        if ip == nil {
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                return fmt.Errorf("unable to encode IP %v", addr.IP)
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        }
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        if _, err := w.Write([]byte{addrType}); err != nil {
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                return err
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        }
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        if _, err := w.Write(ip); err != nil {
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                return err
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        }
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        var port [2]byte
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        byteOrder.PutUint16(port[:], uint16(addr.Port))
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        if _, err := w.Write(port[:]); err != nil {
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                return err
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        }
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        return nil
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}
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// encodeOnionAddr serializes an onion address into its compact raw bytes
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// representation.
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func encodeOnionAddr(w io.Writer, addr *tor.OnionAddr) error {
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        var suffixIndex int
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        hostLen := len(addr.OnionService)
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        switch hostLen {
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        case tor.V2Len:
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                if _, err := w.Write([]byte{byte(v2OnionAddr)}); err != nil {
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                        return err
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                }
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                suffixIndex = tor.V2Len - tor.OnionSuffixLen
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        case tor.V3Len:
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                if _, err := w.Write([]byte{byte(v3OnionAddr)}); err != nil {
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                        return err
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                }
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                suffixIndex = tor.V3Len - tor.OnionSuffixLen
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        default:
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                return errors.New("unknown onion service length")
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        }
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        suffix := addr.OnionService[suffixIndex:]
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        if suffix != tor.OnionSuffix {
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                return fmt.Errorf("invalid suffix \"%v\"", suffix)
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        }
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        host, err := tor.Base32Encoding.DecodeString(
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                addr.OnionService[:suffixIndex],
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        )
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        if err != nil {
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                return err
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        }
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        // Sanity check the decoded length.
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        switch {
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        case hostLen == tor.V2Len && len(host) != tor.V2DecodedLen:
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                return fmt.Errorf("onion service %v decoded to invalid host %x",
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                        addr.OnionService, host)
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        case hostLen == tor.V3Len && len(host) != tor.V3DecodedLen:
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                return fmt.Errorf("onion service %v decoded to invalid host %x",
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                        addr.OnionService, host)
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        }
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        if _, err := w.Write(host); err != nil {
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                return err
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        }
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        var port [2]byte
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        byteOrder.PutUint16(port[:], uint16(addr.Port))
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        if _, err := w.Write(port[:]); err != nil {
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                return err
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        }
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        return nil
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}
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// deserializeAddr reads the serialized raw representation of an address and
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// deserializes it into the actual address. This allows us to avoid address
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// resolution within the channeldb package.
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func deserializeAddr(r io.Reader) (net.Addr, error) {
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        var addrType [1]byte
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        if _, err := r.Read(addrType[:]); err != nil {
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                return nil, err
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        }
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        var address net.Addr
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        switch addressType(addrType[0]) {
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        case tcp4Addr:
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                var ip [4]byte
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                if _, err := r.Read(ip[:]); err != nil {
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                        return nil, err
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                }
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                var port [2]byte
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                if _, err := r.Read(port[:]); err != nil {
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                        return nil, err
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                }
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                address = &net.TCPAddr{
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                        IP:   net.IP(ip[:]),
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                        Port: int(binary.BigEndian.Uint16(port[:])),
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                }
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        case tcp6Addr:
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                var ip [16]byte
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                if _, err := r.Read(ip[:]); err != nil {
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                        return nil, err
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                }
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                var port [2]byte
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                if _, err := r.Read(port[:]); err != nil {
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                        return nil, err
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                }
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                address = &net.TCPAddr{
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                        IP:   net.IP(ip[:]),
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                        Port: int(binary.BigEndian.Uint16(port[:])),
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                }
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        case v2OnionAddr:
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                var h [tor.V2DecodedLen]byte
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                if _, err := r.Read(h[:]); err != nil {
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                        return nil, err
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                }
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                var p [2]byte
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                if _, err := r.Read(p[:]); err != nil {
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                        return nil, err
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                }
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                onionService := tor.Base32Encoding.EncodeToString(h[:])
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                onionService += tor.OnionSuffix
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                port := int(binary.BigEndian.Uint16(p[:]))
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                address = &tor.OnionAddr{
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                        OnionService: onionService,
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                        Port:         port,
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                }
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        case v3OnionAddr:
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                var h [tor.V3DecodedLen]byte
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                if _, err := r.Read(h[:]); err != nil {
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                        return nil, err
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                }
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                var p [2]byte
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                if _, err := r.Read(p[:]); err != nil {
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                        return nil, err
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                }
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                onionService := tor.Base32Encoding.EncodeToString(h[:])
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                onionService += tor.OnionSuffix
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                port := int(binary.BigEndian.Uint16(p[:]))
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                address = &tor.OnionAddr{
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                        OnionService: onionService,
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                        Port:         port,
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                }
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        default:
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                return nil, ErrUnknownAddressType
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        }
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        return address, nil
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}
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// serializeAddr serializes an address into its raw bytes representation so that
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// it can be deserialized without requiring address resolution.
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func serializeAddr(w io.Writer, address net.Addr) error {
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        switch addr := address.(type) {
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        case *net.TCPAddr:
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                return encodeTCPAddr(w, addr)
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        case *tor.OnionAddr:
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                return encodeOnionAddr(w, addr)
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        default:
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                return ErrUnknownAddressType
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        }
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}
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