snow/wireguard-go
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Fix up fwmark handling

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This commit is contained in:
Jason A. Donenfeld 2017-09-21 03:09:57 +02:00
parent 47a21c8bb0
commit c545d63bb9
4 changed files with 30 additions and 20 deletions
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2
src/conn_default.go
View file

@ -6,6 +6,6 @@ import (
"net"
)
func setMark(conn *net.UDPConn, value int) error {
func setMark(conn *net.UDPConn, value uint32) error {
return nil
}

6
src/conn_linux.go
View file

@ -5,8 +5,8 @@ import (
"net"
)
func setMark(conn *net.UDPConn, value int) error {
if conn == nil || value == 0 {
func setMark(conn *net.UDPConn, value uint32) error {
if conn == nil {
return nil
}
@ -19,6 +19,6 @@ func setMark(conn *net.UDPConn, value int) error {
int(file.Fd()),
unix.SOL_SOCKET,
unix.SO_MARK,
value,
int(value),
)
}

2
src/device.go
View file

@ -24,7 +24,7 @@ type Device struct {
mutex sync.RWMutex
addr *net.UDPAddr // UDP source address
conn *net.UDPConn // UDP "connection"
fwmark int
fwmark uint32
}
mutex sync.RWMutex
privateKey NoisePrivateKey

40
src/uapi.go
View file

@ -42,6 +42,9 @@ func ipcGetOperation(device *Device, socket *bufio.ReadWriter) *IPCError {
if device.net.addr != nil {
send(fmt.Sprintf("listen_port=%d", device.net.addr.Port))
}
if device.net.fwmark != 0 {
send(fmt.Sprintf("fwmark=%d", device.net.fwmark))
}
for _, peer := range device.peers {
func() {
@ -158,25 +161,32 @@ func ipcSetOperation(device *Device, socket *bufio.ReadWriter) *IPCError {
// TODO: Clear source address of all peers
case "fwmark":
fwmark, err := strconv.ParseInt(value, 10, 32)
if err != nil {
logError.Println("Invalid fwmark", err)
return &IPCError{Code: ipcErrorInvalid}
var fwmark uint64 = 0
if value != "" {
var err error
fwmark, err = strconv.ParseUint(value, 10, 32)
if err != nil {
logError.Println("Invalid fwmark", err)
return &IPCError{Code: ipcErrorInvalid}
}
}
device.net.mutex.Lock()
device.net.fwmark = int(fwmark)
err = setMark(
device.net.conn,
device.net.fwmark,
)
device.net.mutex.Unlock()
if err != nil {
logError.Println("Failed to set fwmark:", err)
return &IPCError{Code: ipcErrorIO}
}
if fwmark > 0 || device.net.fwmark > 0 {
device.net.fwmark = uint32(fwmark)
err := setMark(
device.net.conn,
device.net.fwmark,
)
if err != nil {
logError.Println("Failed to set fwmark:", err)
device.net.mutex.Unlock()
return &IPCError{Code: ipcErrorIO}
}
// TODO: Clear source address of all peers
// TODO: Clear source address of all peers
}
device.net.mutex.Unlock()
case "public_key":