upstream commit
Add 'reverse' dynamic forwarding which combines dynamic
forwarding (-D) with remote forwarding (-R) where the remote-forwarded port
expects SOCKS-requests.
The SSH server code is unchanged and the parsing happens at the SSH
clients side. Thus the full SOCKS-request is sent over the forwarded
channel and the client parses c->output. Parsing happens in
channel_before_prepare_select(), _before_ the select bitmask is
computed in the pre[] handlers, but after network input processing
in the post[] handlers.
help and ok djm@
Upstream-ID: aa25a6a3851064f34fe719e0bf15656ad5a64b89
diff --git a/channels.h b/channels.h
index d1cf5dc..126b043 100644
--- a/channels.h
+++ b/channels.h
@@ -1,4 +1,4 @@
-/* $OpenBSD: channels.h,v 1.129 2017/09/12 06:35:32 djm Exp $ */
+/* $OpenBSD: channels.h,v 1.130 2017/09/21 19:16:53 markus Exp $ */
/*
* Author: Tatu Ylonen <ylo@cs.hut.fi>
@@ -57,7 +57,9 @@
#define SSH_CHANNEL_UNIX_LISTENER 18 /* Listening on a domain socket. */
#define SSH_CHANNEL_RUNIX_LISTENER 19 /* Listening to a R-style domain socket. */
#define SSH_CHANNEL_MUX_PROXY 20 /* proxy channel for mux-slave */
-#define SSH_CHANNEL_MAX_TYPE 21
+#define SSH_CHANNEL_RDYNAMIC_OPEN 21 /* reverse SOCKS, parsing request */
+#define SSH_CHANNEL_RDYNAMIC_FINISH 22 /* reverse SOCKS, finishing connect */
+#define SSH_CHANNEL_MAX_TYPE 23
#define CHANNEL_CANCEL_PORT_STATIC -1