summaryrefslogtreecommitdiffhomepage
path: root/src/conn.go
diff options
context:
space:
mode:
authorMathias Hall-Andersen <mathias@hall-andersen.dk>2018-02-04 16:08:26 +0100
committerMathias Hall-Andersen <mathias@hall-andersen.dk>2018-02-04 16:08:26 +0100
commita0f54cbe5ac2cd8b8296c2c57c30029dd349cff0 (patch)
tree64574090d79ff3899c5c18e5268e450028e4656b /src/conn.go
parent5871ec04deb8f4715cab37146940baa35c08cbee (diff)
Align with go library layout
Diffstat (limited to 'src/conn.go')
-rw-r--r--src/conn.go128
1 files changed, 0 insertions, 128 deletions
diff --git a/src/conn.go b/src/conn.go
deleted file mode 100644
index fb30ec2..0000000
--- a/src/conn.go
+++ /dev/null
@@ -1,128 +0,0 @@
-package main
-
-import (
- "errors"
- "golang.org/x/net/ipv4"
- "golang.org/x/net/ipv6"
- "net"
-)
-
-/* A Bind handles listening on a port for both IPv6 and IPv4 UDP traffic
- */
-type Bind interface {
- SetMark(value uint32) error
- ReceiveIPv6(buff []byte) (int, Endpoint, error)
- ReceiveIPv4(buff []byte) (int, Endpoint, error)
- Send(buff []byte, end Endpoint) error
- Close() error
-}
-
-/* An Endpoint maintains the source/destination caching for a peer
- *
- * dst : the remote address of a peer ("endpoint" in uapi terminology)
- * src : the local address from which datagrams originate going to the peer
- */
-type Endpoint interface {
- ClearSrc() // clears the source address
- SrcToString() string // returns the local source address (ip:port)
- DstToString() string // returns the destination address (ip:port)
- DstToBytes() []byte // used for mac2 cookie calculations
- DstIP() net.IP
- SrcIP() net.IP
-}
-
-func parseEndpoint(s string) (*net.UDPAddr, error) {
-
- // ensure that the host is an IP address
-
- host, _, err := net.SplitHostPort(s)
- if err != nil {
- return nil, err
- }
- if ip := net.ParseIP(host); ip == nil {
- return nil, errors.New("Failed to parse IP address: " + host)
- }
-
- // parse address and port
-
- addr, err := net.ResolveUDPAddr("udp", s)
- if err != nil {
- return nil, err
- }
- return addr, err
-}
-
-/* Must hold device and net lock
- */
-func unsafeCloseBind(device *Device) error {
- var err error
- netc := &device.net
- if netc.bind != nil {
- err = netc.bind.Close()
- netc.bind = nil
- }
- return err
-}
-
-func (device *Device) BindUpdate() error {
-
- device.net.mutex.Lock()
- defer device.net.mutex.Unlock()
-
- device.peers.mutex.Lock()
- defer device.peers.mutex.Unlock()
-
- // close existing sockets
-
- if err := unsafeCloseBind(device); err != nil {
- return err
- }
-
- // open new sockets
-
- if device.isUp.Get() {
-
- // bind to new port
-
- var err error
- netc := &device.net
- netc.bind, netc.port, err = CreateBind(netc.port)
- if err != nil {
- netc.bind = nil
- return err
- }
-
- // set mark
-
- err = netc.bind.SetMark(netc.fwmark)
- if err != nil {
- return err
- }
-
- // clear cached source addresses
-
- for _, peer := range device.peers.keyMap {
- peer.mutex.Lock()
- defer peer.mutex.Unlock()
- if peer.endpoint != nil {
- peer.endpoint.ClearSrc()
- }
- }
-
- // start receiving routines
-
- go device.RoutineReceiveIncoming(ipv4.Version, netc.bind)
- go device.RoutineReceiveIncoming(ipv6.Version, netc.bind)
-
- device.log.Debug.Println("UDP bind has been updated")
- }
-
- return nil
-}
-
-func (device *Device) BindClose() error {
- device.net.mutex.Lock()
- err := unsafeCloseBind(device)
- device.net.mutex.Unlock()
- return err
-}