Contents

readPackets(completionHandler:)

Reads IP packets from the TUN interface.

Declaration

func readPackets(completionHandler: @escaping  @Sendable ([Data], [NSNumber]) -> Void)
func readPackets() async -> ([Data], [NSNumber])

Parameters

  • completionHandler:

    A Swift closure or an ObjectiveC block that runs when some packets are read from the TUN interface. The packets that were read are passed to this block in the packets array. The protocol numbers of the packets that were read are passed to this block in the protocols array. Each packet has a protocol number in the corresponding index in the protocols array. The protocol numbers are given in host byte order. Valid protocol numbers include AF_INET and AF_INET6. See /usr/include/sys/socket.h.

Discussion

Each call to this method results in a single execution of the completion handler. The caller should call this method after each completionHandler execution in order to continue to receive packets from the TUN interface.

See Also

Handling IP packets