rxrpc: Add more CHALLENGE/RESPONSE packet tracing

Add more tracing for CHALLENGE and RESPONSE packets.  Currently, rxrpc only
has client-relevant tracepoints (rx_challenge and tx_response), but add the
server-side ones too.

Further, record the service ID in the rx_challenge tracepoint as well.

Signed-off-by: David Howells <dhowells@redhat.com>
cc: Marc Dionne <marc.dionne@auristor.com>
cc: Jakub Kicinski <kuba@kernel.org>
cc: "David S. Miller" <davem@davemloft.net>
cc: Eric Dumazet <edumazet@google.com>
cc: Paolo Abeni <pabeni@redhat.com>
cc: Simon Horman <horms@kernel.org>
cc: linux-afs@lists.infradead.org
cc: netdev@vger.kernel.org
4 files changed