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Fix: set SO_REUSEADDR for UDP listeners on linux (#630)

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This commit is contained in:
duama
2020-04-11 21:45:56 +08:00
committed by GitHub
parent 3ccd7def86
commit 2750c7ead0
5 changed files with 48 additions and 1 deletions
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6
proxy/redir/udp_linux.go
View File

@ -31,7 +31,11 @@ func setsockopt(c *net.UDPConn, addr string) error {
}
rc.Control(func(fd uintptr) {
err = syscall.SetsockoptInt(int(fd), syscall.SOL_IP, syscall.IP_TRANSPARENT, 1)
err = syscall.SetsockoptInt(int(fd), syscall.SOL_SOCKET, syscall.SO_REUSEADDR, 1)
if err == nil {
err = syscall.SetsockoptInt(int(fd), syscall.SOL_IP, syscall.IP_TRANSPARENT, 1)
}
if err == nil && isIPv6 {
err = syscall.SetsockoptInt(int(fd), syscall.SOL_IPV6, IPV6_TRANSPARENT, 1)
}

6
proxy/socks/udp.go
View File

@ -5,6 +5,7 @@ import (
adapters "github.com/Dreamacro/clash/adapters/inbound"
"github.com/Dreamacro/clash/common/pool"
"github.com/Dreamacro/clash/common/sockopt"
"github.com/Dreamacro/clash/component/socks5"
C "github.com/Dreamacro/clash/constant"
"github.com/Dreamacro/clash/tunnel"
@ -22,6 +23,11 @@ func NewSocksUDPProxy(addr string) (*SockUDPListener, error) {
return nil, err
}
err = sockopt.UDPReuseaddr(l.(*net.UDPConn))
if err != nil {
return nil, err
}
sl := &SockUDPListener{l, addr, false}
go func() {
for {