Add support for dynamically adjusted buffers to allow the full use of

the bandwidth of long fat pipes (i.e. 100Mbps+ trans-oceanic or
trans-continental links).  Bandwidth-delay products up to 64MB are
supported.

Also add support (not compiled by default) for the None cypher.  The
None cypher can only be enabled on non-interactive sessions (those
without a pty where -T was not used) and must be enabled in both
the client and server configuration files and on the client command
line.  Additionally, the None cypher will only be activated after
authentication is complete.  To enable the None cypher you must add
-DNONE_CIPHER_ENABLED to CFLAGS via the make command line or in
/etc/make.conf.

This code is a style(9) compliant version of these features extracted
from the patches published at:

http://www.psc.edu/networking/projects/hpn-ssh/

Merging this patch has been a collaboration between me and Bjoern.

Reviewed by:	bz
Approved by:	re (kib), des (maintainer)

1 files changed, 12 insertions, 0 deletions

diff --git a/crypto/openssh/readconf.h b/crypto/openssh/readconf.h
index ee160df..195f6e7 100644
--- a/crypto/openssh/readconf.h
+++ b/crypto/openssh/readconf.h
@@ -1,4 +1,5 @@
 /* $OpenBSD: readconf.h,v 1.88 2010/11/13 23:27:50 djm Exp $ */
+/* $FreeBSD$ */
 
 /*
  * Author: Tatu Ylonen <ylo@cs.hut.fi>
@@ -132,6 +133,17 @@ typedef struct {
 
 	int	use_roaming;
 
+	int	hpn_disabled;	/* Switch to disable HPN buffer management. */
+	int	hpn_buffer_size;	/* User definable size for HPN buffer
+					 * window. */
+	int	tcp_rcv_buf_poll;	/* Option to poll recv buf every window
+					 * transfer. */
+	int	tcp_rcv_buf;	/* User switch to set tcp recv buffer. */
+
+#ifdef	NONE_CIPHER_ENABLED
+	int	none_enabled;	/* Allow none to be used */
+	int	none_switch;	/* Use none cipher */
+#endif
 }       Options;
 
 #define SSHCTL_MASTER_NO	0