Skip to content

UDPMuxSink for UDPMux allows to inspect packets before being dropped #746

New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

Sign up for GitHub

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

Open
astroza wants to merge 1 commit into
base: master
Choose a base branch
from
Open

UDPMuxSink for UDPMux allows to inspect packets before being dropped #746

Changes from all commits
Commits
Show all changes
1 commit
Select commit
File filter

Filter by extension

Filter by extension
Conversations
Failed to load comments.
Loading
Jump to
Jump to file
Failed to load files.
Loading
Diff view
Diff view
10 changes: 10 additions & 0 deletions udp_mux.go
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -26,6 +26,10 @@ type UDPMux interface {
GetListenAddresses() []net.Addr
}

type UDPMuxSink interface {
InspectDroppedPacket(data []byte, addr *net.UDPAddr)
}

// UDPMuxDefault is an implementation of the interface
type UDPMuxDefault struct {
params UDPMuxParams
Expand Down Expand Up @@ -58,6 +62,8 @@ type UDPMuxParams struct {
// in case a un UDPConn is passed which does not
// bind to a specific local address.
Net transport.Net
// Dropped packets are inspected by the Sink
Sink UDPMuxSink
}

// NewUDPMuxDefault creates an implementation of UDPMux
Expand Down Expand Up @@ -343,6 +349,10 @@ func (m *UDPMuxDefault) connWorker() {
}

if destinationConn == nil {
// If sink is enabled the packet is inspected before being dropped
if m.params.Sink != nil {
m.params.Sink.InspectDroppedPacket(buf[:n], netUDPAddr)
}
m.params.Logger.Tracef("Dropping packet from %s, addr: %s", udpAddr.addr, addr)
continue
}
Expand Down