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chore: add WaitReadFrom support in ssr

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This commit is contained in:
wwqgtxx
2023-05-28 22:51:26 +08:00
parent 097f3e250c
commit 8e88e0b9f5
20 changed files with 182 additions and 88 deletions
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30
transport/shadowsocks/shadowstream/packet.go
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@ -6,6 +6,7 @@ import (
"io"
"net"
N "github.com/Dreamacro/clash/common/net"
"github.com/Dreamacro/clash/common/pool"
)
@ -43,13 +44,13 @@ func Unpack(dst, pkt []byte, s Cipher) ([]byte, error) {
}
type PacketConn struct {
net.PacketConn
N.EnhancePacketConn
Cipher
}
// NewPacketConn wraps a net.PacketConn with stream cipher encryption/decryption.
func NewPacketConn(c net.PacketConn, ciph Cipher) *PacketConn {
return &PacketConn{PacketConn: c, Cipher: ciph}
// NewPacketConn wraps an N.EnhancePacketConn with stream cipher encryption/decryption.
func NewPacketConn(c N.EnhancePacketConn, ciph Cipher) *PacketConn {
return &PacketConn{EnhancePacketConn: c, Cipher: ciph}
}
const maxPacketSize = 64 * 1024
@ -61,12 +62,12 @@ func (c *PacketConn) WriteTo(b []byte, addr net.Addr) (int, error) {
if err != nil {
return 0, err
}
_, err = c.PacketConn.WriteTo(buf, addr)
_, err = c.EnhancePacketConn.WriteTo(buf, addr)
return len(b), err
}
func (c *PacketConn) ReadFrom(b []byte) (int, net.Addr, error) {
n, addr, err := c.PacketConn.ReadFrom(b)
n, addr, err := c.EnhancePacketConn.ReadFrom(b)
if err != nil {
return n, addr, err
}
@ -77,3 +78,20 @@ func (c *PacketConn) ReadFrom(b []byte) (int, net.Addr, error) {
copy(b, bb)
return len(bb), addr, err
}
func (c *PacketConn) WaitReadFrom() (data []byte, put func(), addr net.Addr, err error) {
data, put, addr, err = c.EnhancePacketConn.WaitReadFrom()
if err != nil {
return
}
data, err = Unpack(data[c.IVSize():], data, c)
if err != nil {
if put != nil {
put()
}
data = nil
put = nil
return
}
return
}