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Fix decrypt xplus packet

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世界 2022-10-26 20:25:49 +08:00
parent 35886b88d7
commit 8703e1ff98
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GPG key ID: CD109927C34A63C4
1 changed files with 2 additions and 4 deletions
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6
transport/hysteria/xplus.go
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@ -10,15 +10,12 @@ import (
"github.com/sagernet/sing/common" "github.com/sagernet/sing/common"
"github.com/sagernet/sing/common/buf" "github.com/sagernet/sing/common/buf"
"github.com/sagernet/sing/common/bufio" "github.com/sagernet/sing/common/bufio"
E "github.com/sagernet/sing/common/exceptions"
M "github.com/sagernet/sing/common/metadata" M "github.com/sagernet/sing/common/metadata"
N "github.com/sagernet/sing/common/network" N "github.com/sagernet/sing/common/network"
) )
const xplusSaltLen = 16 const xplusSaltLen = 16
var errInalidPacket = E.New("invalid packet")
func NewXPlusPacketConn(conn net.PacketConn, key []byte) net.PacketConn { func NewXPlusPacketConn(conn net.PacketConn, key []byte) net.PacketConn {
vectorisedWriter, isVectorised := bufio.CreateVectorisedPacketWriter(conn) vectorisedWriter, isVectorised := bufio.CreateVectorisedPacketWriter(conn)
if isVectorised { if isVectorised {
@ -51,7 +48,8 @@ func (c *XPlusPacketConn) ReadFrom(p []byte) (n int, addr net.Addr, err error) {
if err != nil { if err != nil {
return return
} else if n < xplusSaltLen { } else if n < xplusSaltLen {
return 0, nil, errInalidPacket n = 0
return
} }
key := sha256.Sum256(append(c.key, p[:xplusSaltLen]...)) key := sha256.Sum256(append(c.key, p[:xplusSaltLen]...))
for i := range p[xplusSaltLen:] { for i := range p[xplusSaltLen:] {