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This commit is contained in:
Owen
2025-12-03 20:49:46 -05:00
parent 284f1ce627
commit 8c4d6e2e0a
10 changed files with 157 additions and 142 deletions
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5
bind/shared_bind.go
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@@ -11,6 +11,7 @@ import (
"sync"
"sync/atomic"
"github.com/fosrl/newt/logger"
"golang.org/x/net/ipv4"
"golang.org/x/net/ipv6"
wgConn "golang.zx2c4.com/wireguard/conn"
@@ -522,6 +523,7 @@ func (b *SharedBind) receiveIPv4Simple(conn *net.UDPConn, bufs [][]byte, sizes [
func (b *SharedBind) handleMagicPacket(data []byte, addr *net.UDPAddr) bool {
// Check if this is a test request packet
if len(data) >= MagicTestRequestLen && bytes.HasPrefix(data, MagicTestRequest) {
logger.Debug("Received magic test REQUEST from %s, sending response", addr.String())
// Extract the random data portion to echo back
echoData := data[len(MagicTestRequest) : len(MagicTestRequest)+MagicPacketDataLen]
@@ -544,6 +546,7 @@ func (b *SharedBind) handleMagicPacket(data []byte, addr *net.UDPAddr) bool {
// Check if this is a test response packet
if len(data) >= MagicTestResponseLen && bytes.HasPrefix(data, MagicTestResponse) {
logger.Debug("Received magic test RESPONSE from %s", addr.String())
// Extract the echoed data
echoData := data[len(MagicTestResponse) : len(MagicTestResponse)+MagicPacketDataLen]
@@ -557,6 +560,8 @@ func (b *SharedBind) handleMagicPacket(data []byte, addr *net.UDPAddr) bool {
addrPort = netip.AddrPortFrom(addrPort.Addr().Unmap(), addrPort.Port())
}
callback(addrPort, echoData)
} else {
logger.Debug("Magic response received but no callback registered")
}
return true