snow/wireguard-go
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uapi: insert peer version placeholder

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While we don't want people to ever use old protocols, people will
complain if the API "changes", so explicitly make the unset protocol
mean the latest, and add a dummy mechanism of specifying the protocol on
a per-peer basis, which we hope nobody actually ever uses.
This commit is contained in:
Jason A. Donenfeld 2018-09-02 23:04:47 -06:00
parent 15da869b31
commit 063becdc73
1 changed files with 8 additions and 0 deletions
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8
uapi.go
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@ -75,6 +75,7 @@ func ipcGetOperation(device *Device, socket *bufio.ReadWriter) *IPCError {
send("public_key=" + peer.handshake.remoteStatic.ToHex())
send("preshared_key=" + peer.handshake.presharedKey.ToHex())
send("protocol_version=1")
if peer.endpoint != nil {
send("endpoint=" + peer.endpoint.DstToString())
}
@ -362,6 +363,13 @@ func ipcSetOperation(device *Device, socket *bufio.ReadWriter) *IPCError {
ones, _ := network.Mask.Size()
device.allowedips.Insert(network.IP, uint(ones), peer)
case "protocol_version":
if value != "1" {
logError.Println("Invalid protocol version:", value)
return &IPCError{Code: ipcErrorInvalid}
}
default:
logError.Println("Invalid UAPI peer key:", key)
return &IPCError{Code: ipcErrorInvalid}