diff options
Diffstat (limited to 'security/openssh-portable/files/openssh-5.2p1-hpn.patch')
| -rw-r--r-- | security/openssh-portable/files/openssh-5.2p1-hpn.patch | 2196 |
1 files changed, 2196 insertions, 0 deletions
diff --git a/security/openssh-portable/files/openssh-5.2p1-hpn.patch b/security/openssh-portable/files/openssh-5.2p1-hpn.patch new file mode 100644 index 000000000000..cf97fe5b0154 --- /dev/null +++ b/security/openssh-portable/files/openssh-5.2p1-hpn.patch @@ -0,0 +1,2196 @@ +diff -urN HPN-README HPN-README +--- HPN-README 1970-01-01 03:00:00.000000000 +0300 ++++ HPN-README 2009-05-02 17:38:18.000000000 +0400 +@@ -0,0 +1,128 @@ ++Notes: ++ ++MULTI-THREADED CIPHER: ++The AES cipher in CTR mode has been multithreaded (MTR-AES-CTR). This will allow ssh installations ++on hosts with multiple cores to use more than one processing core during encryption. ++Tests have show significant throughput performance increases when using MTR-AES-CTR up ++to and including a full gigabit per second on quad core systems. It should be possible to ++achieve full line rate on dual core systems but OS and data management overhead makes this ++more difficult to achieve. The cipher stream from MTR-AES-CTR is entirely compatible with single ++thread AES-CTR (ST-AES-CTR) implementations and should be 100% backward compatible. Optimal ++performance requires the MTR-AES-CTR mode be enabled on both ends of the connection. ++The MTR-AES-CTR replaces ST-AES-CTR and is used in exactly the same way with the same ++nomenclature. ++Use examples: ssh -caes128-ctr you@host.com ++ scp -oCipher=aes256-ctr file you@host.com:~/file ++ ++NONE CIPHER: ++To use the NONE option you must have the NoneEnabled switch set on the server and ++you *must* have *both* NoneEnabled and NoneSwitch set to yes on the client. The NONE ++feature works with ALL ssh subsystems (as far as we can tell) *AS LONG AS* a tty is not ++spawned. If a user uses the -T switch to prevent a tty being created the NONE cipher will ++be disabled. ++ ++The performance increase will only be as good as the network and TCP stack tuning ++on the reciever side of the connection allows. As a rule of thumb a user will need ++at least 10Mb/s connection with a 100ms RTT to see a doubling of performance. The ++HPN-SSH home page describes this in greater detail. ++ ++http://www.psc.edu/networking/projects/hpn-ssh ++ ++BUFFER SIZES: ++ ++If HPN is disabled the receive buffer size will be set to the ++OpenSSH default of 64K. ++ ++If an HPN system connects to a nonHPN system the receive buffer will ++be set to the HPNBufferSize value. The default is 2MB but user adjustable. ++ ++If an HPN to HPN connection is established a number of different things might ++happen based on the user options and conditions. ++ ++Conditions: HPNBufferSize NOT Set, TCPRcvBufPoll enabled, TCPRcvBuf NOT Set ++HPN Buffer Size = up to 64MB ++This is the default state. The HPN buffer size will grow to a maximum of 64MB ++as the TCP receive buffer grows. The maximum HPN Buffer size of 64MB is ++geared towards 10GigE transcontinental connections. ++ ++Conditions: HPNBufferSize NOT Set, TCPRcvBufPoll disabled, TCPRcvBuf NOT Set ++HPN Buffer Size = TCP receive buffer value. ++Users on non-autotuning systesm should disable TCPRcvBufPoll in the ++ssh_cofig and sshd_config ++ ++Conditions: HPNBufferSize SET, TCPRcvBufPoll disabled, TCPRcvBuf NOT Set ++HPN Buffer Size = minmum of TCP receive buffer and HPNBufferSize. ++This would be the system defined TCP receive buffer (RWIN). ++ ++Conditions: HPNBufferSize SET, TCPRcvBufPoll disabled, TCPRcvBuf SET ++HPN Buffer Size = minmum of TCPRcvBuf and HPNBufferSize. ++Generally there is no need to set both. ++ ++Conditions: HPNBufferSize SET, TCPRcvBufPoll enabled, TCPRcvBuf NOT Set ++HPN Buffer Size = grows to HPNBufferSize ++The buffer will grow up to the maximum size specified here. ++ ++Conditions: HPNBufferSize SET, TCPRcvBufPoll enabled, TCPRcvBuf SET ++HPN Buffer Size = minmum of TCPRcvBuf and HPNBufferSize. ++Generally there is no need to set both of these, especially on autotuning ++systems. However, if the users wishes to override the autotuning this would be ++one way to do it. ++ ++Conditions: HPNBufferSize NOT Set, TCPRcvBufPoll enabled, TCPRcvBuf SET ++HPN Buffer Size = TCPRcvBuf. ++This will override autotuning and set the TCP recieve buffer to the user defined ++value. ++ ++ ++HPN Specific Configuration options ++ ++TcpRcvBuf=[int]KB client ++ set the TCP socket receive buffer to n Kilobytes. It can be set up to the ++maximum socket size allowed by the system. This is useful in situations where ++the tcp receive window is set low but the maximum buffer size is set ++higher (as is typical). This works on a per TCP connection basis. You can also ++use this to artifically limit the transfer rate of the connection. In these ++cases the throughput will be no more than n/RTT. The minimum buffer size is 1KB. ++Default is the current system wide tcp receive buffer size. ++ ++TcpRcvBufPoll=[yes/no] client/server ++ enable of disable the polling of the tcp receive buffer through the life ++of the connection. You would want to make sure that this option is enabled ++for systems making use of autotuning kernels (linux 2.4.24+, 2.6, MS Vista) ++default is yes. ++ ++NoneEnabled=[yes/no] client/server ++ enable or disable the use of the None cipher. Care must always be used ++when enabling this as it will allow users to send data in the clear. However, ++it is important to note that authentication information remains encrypted ++even if this option is enabled. Set to no by default. ++ ++NoneSwitch=[yes/no] client ++ Switch the encryption cipher being used to the None cipher after ++authentication takes place. NoneEnabled must be enabled on both the client ++and server side of the connection. When the connection switches to the NONE ++cipher a warning is sent to STDERR. The connection attempt will fail with an ++error if a client requests a NoneSwitch from the server that does not explicitly ++have NoneEnabled set to yes. Note: The NONE cipher cannot be used in ++interactive (shell) sessions and it will fail silently. Set to no by default. ++ ++HPNDisabled=[yes/no] client/server ++ In some situations, such as transfers on a local area network, the impact ++of the HPN code produces a net decrease in performance. In these cases it is ++helpful to disable the HPN functionality. By default HPNDisabled is set to no. ++ ++HPNBufferSize=[int]KB client/server ++ This is the default buffer size the HPN functionality uses when interacting ++with nonHPN SSH installations. Conceptually this is similar to the TcpRcvBuf ++option as applied to the internal SSH flow control. This value can range from ++1KB to 64MB (1-65536). Use of oversized or undersized buffers can cause performance ++problems depending on the length of the network path. The default size of this buffer ++is 2MB. ++ ++ ++Credits: This patch was conceived, designed, and led by Chris Rapier (rapier@psc.edu) ++ The majority of the actual coding for versions up to HPN12v1 was performed ++ by Michael Stevens (mstevens@andrew.cmu.edu). The MT-AES-CTR cipher was ++ implemented by Ben Bennet (ben@psc.edu). This work was financed, in part, ++ by Cisco System, Inc., the National Library of Medicine, ++ and the National Science Foundation. +diff -urN Makefile.in Makefile.in +--- Makefile.in 2009-05-02 17:37:11.000000000 +0400 ++++ Makefile.in 2009-05-02 17:38:18.000000000 +0400 +@@ -43,7 +43,7 @@ + LD=@LD@ + CFLAGS=@CFLAGS@ + CPPFLAGS=-I. -I$(srcdir) @CPPFLAGS@ $(PATHS) @DEFS@ +-LIBS=@LIBS@ ++LIBS=@LIBS@ -lpthread + SSHDLIBS=@SSHDLIBS@ + LIBEDIT=@LIBEDIT@ + AR=@AR@ +@@ -64,7 +64,7 @@ + + LIBSSH_OBJS=acss.o authfd.o authfile.o bufaux.o bufbn.o buffer.o \ + canohost.o channels.o cipher.o cipher-acss.o cipher-aes.o \ +- cipher-bf1.o cipher-ctr.o cipher-3des1.o cleanup.o \ ++ cipher-bf1.o cipher-ctr.o cipher-ctr-mt.o cipher-3des1.o cleanup.o \ + compat.o compress.o crc32.o deattack.o fatal.o hostfile.o \ + log.o match.o md-sha256.o moduli.o nchan.o packet.o \ + readpass.o rsa.o ttymodes.o xmalloc.o addrmatch.o \ +diff -urN auth2.c auth2.c +--- auth2.c 2009-05-02 17:37:11.000000000 +0400 ++++ auth2.c 2009-05-02 17:38:18.000000000 +0400 +@@ -50,6 +50,7 @@ + #include "dispatch.h" + #include "pathnames.h" + #include "buffer.h" ++#include "canohost.h" + + #ifdef GSSAPI + #include "ssh-gss.h" +@@ -76,6 +77,9 @@ + extern Authmethod method_jpake; + #endif + ++static int log_flag = 0; ++ ++ + Authmethod *authmethods[] = { + &method_none, + &method_pubkey, +@@ -233,6 +237,11 @@ + service = packet_get_string(NULL); + method = packet_get_string(NULL); + debug("userauth-request for user %s service %s method %s", user, service, method); ++ if (!log_flag) { ++ logit("SSH: Server;Ltype: Authname;Remote: %s-%d;Name: %s", ++ get_remote_ipaddr(), get_remote_port(), user); ++ log_flag = 1; ++ } + debug("attempt %d failures %d", authctxt->attempt, authctxt->failures); + + if ((style = strchr(user, ':')) != NULL) +diff -urN buffer.c buffer.c +--- buffer.c 2006-08-05 06:39:39.000000000 +0400 ++++ buffer.c 2009-05-02 17:38:18.000000000 +0400 +@@ -127,7 +127,7 @@ + + /* Increase the size of the buffer and retry. */ + newlen = roundup(buffer->alloc + len, BUFFER_ALLOCSZ); +- if (newlen > BUFFER_MAX_LEN) ++ if (newlen > BUFFER_MAX_LEN_HPN) + fatal("buffer_append_space: alloc %u not supported", + newlen); + buffer->buf = xrealloc(buffer->buf, 1, newlen); +diff -urN buffer.h buffer.h +--- buffer.h 2008-05-19 08:59:37.000000000 +0400 ++++ buffer.h 2009-05-02 17:38:18.000000000 +0400 +@@ -16,6 +16,9 @@ + #ifndef BUFFER_H + #define BUFFER_H + ++/* move the following to a more appropriate place and name */ ++#define BUFFER_MAX_LEN_HPN 0x4000000 /* 64MB */ ++ + typedef struct { + u_char *buf; /* Buffer for data. */ + u_int alloc; /* Number of bytes allocated for data. */ +diff -urN channels.c channels.c +--- channels.c 2009-02-14 08:28:21.000000000 +0300 ++++ channels.c 2009-05-02 17:41:46.000000000 +0400 +@@ -169,8 +169,14 @@ + static int connect_next(struct channel_connect *); + static void channel_connect_ctx_free(struct channel_connect *); + ++ ++static int hpn_disabled = 0; ++static int hpn_buffer_size = 2 * 1024 * 1024; ++ + /* -- channel core */ + ++ ++ + Channel * + channel_by_id(int id) + { +@@ -308,6 +314,7 @@ + c->local_window_max = window; + c->local_consumed = 0; + c->local_maxpacket = maxpack; ++ c->dynamic_window = 0; + c->remote_id = -1; + c->remote_name = xstrdup(remote_name); + c->remote_window = 0; +@@ -798,11 +805,35 @@ + FD_SET(c->sock, writeset); + } + ++int channel_tcpwinsz () { ++ u_int32_t tcpwinsz = 0; ++ socklen_t optsz = sizeof(tcpwinsz); ++ int ret = -1; ++ ++ /* if we aren't on a socket return 128KB*/ ++ if(!packet_connection_is_on_socket()) ++ return(128*1024); ++ ret = getsockopt(packet_get_connection_in(), ++ SOL_SOCKET, SO_RCVBUF, &tcpwinsz, &optsz); ++ /* return no more than 64MB */ ++ if ((ret == 0) && tcpwinsz > BUFFER_MAX_LEN_HPN) ++ tcpwinsz = BUFFER_MAX_LEN_HPN; ++ debug2("tcpwinsz: %d for connection: %d", tcpwinsz, ++ packet_get_connection_in()); ++ return(tcpwinsz); ++} ++ + static void + channel_pre_open(Channel *c, fd_set *readset, fd_set *writeset) + { + u_int limit = compat20 ? c->remote_window : packet_get_maxsize(); + ++ /* check buffer limits */ ++ if ((!c->tcpwinsz) || (c->dynamic_window > 0)) ++ c->tcpwinsz = channel_tcpwinsz(); ++ ++ limit = MIN(limit, 2 * c->tcpwinsz); ++ + if (c->istate == CHAN_INPUT_OPEN && + limit > 0 && + buffer_len(&c->input) < limit && +@@ -1759,14 +1790,21 @@ + c->local_maxpacket*3) || + c->local_window < c->local_window_max/2) && + c->local_consumed > 0) { ++ u_int addition = 0; ++ /* adjust max window size if we are in a dynamic environment */ ++ if (c->dynamic_window && (c->tcpwinsz > c->local_window_max)) { ++ /* grow the window somewhat aggressively to maintain pressure */ ++ addition = 1.5*(c->tcpwinsz - c->local_window_max); ++ c->local_window_max += addition; ++ } + packet_start(SSH2_MSG_CHANNEL_WINDOW_ADJUST); + packet_put_int(c->remote_id); +- packet_put_int(c->local_consumed); ++ packet_put_int(c->local_consumed + addition); + packet_send(); + debug2("channel %d: window %d sent adjust %d", + c->self, c->local_window, + c->local_consumed); +- c->local_window += c->local_consumed; ++ c->local_window += c->local_consumed + addition; + c->local_consumed = 0; + } + return 1; +@@ -1969,11 +2007,12 @@ + + + /* If there is data to send to the connection, enqueue some of it now. */ +-void ++int + channel_output_poll(void) + { + Channel *c; + u_int i, len; ++ int packet_length = 0; + + for (i = 0; i < channels_alloc; i++) { + c = channels[i]; +@@ -2013,7 +2052,7 @@ + packet_start(SSH2_MSG_CHANNEL_DATA); + packet_put_int(c->remote_id); + packet_put_string(data, dlen); +- packet_send(); ++ packet_length = packet_send(); + c->remote_window -= dlen + 4; + xfree(data); + } +@@ -2043,7 +2082,7 @@ + SSH2_MSG_CHANNEL_DATA : SSH_MSG_CHANNEL_DATA); + packet_put_int(c->remote_id); + packet_put_string(buffer_ptr(&c->input), len); +- packet_send(); ++ packet_length = packet_send(); + buffer_consume(&c->input, len); + c->remote_window -= len; + } +@@ -2078,12 +2117,13 @@ + packet_put_int(c->remote_id); + packet_put_int(SSH2_EXTENDED_DATA_STDERR); + packet_put_string(buffer_ptr(&c->extended), len); +- packet_send(); ++ packet_length = packet_send(); + buffer_consume(&c->extended, len); + c->remote_window -= len; + debug2("channel %d: sent ext data %d", c->self, len); + } + } ++ return (packet_length); + } + + +@@ -2459,6 +2499,15 @@ + IPv4or6 = af; + } + ++ ++void ++channel_set_hpn(int external_hpn_disabled, int external_hpn_buffer_size) ++{ ++ hpn_disabled = external_hpn_disabled; ++ hpn_buffer_size = external_hpn_buffer_size; ++ debug("HPN Disabled: %d, HPN Buffer Size: %d", hpn_disabled, hpn_buffer_size); ++} ++ + static int + channel_setup_fwd_listener(int type, const char *listen_addr, + u_short listen_port, int *allocated_listen_port, +@@ -2610,9 +2659,15 @@ + } + + /* Allocate a channel number for the socket. */ ++ /* explicitly test for hpn disabled option. if true use smaller window size */ ++ if (hpn_disabled) + c = channel_new("port listener", type, sock, sock, -1, + CHAN_TCP_WINDOW_DEFAULT, CHAN_TCP_PACKET_DEFAULT, + 0, "port listener", 1); ++ else ++ c = channel_new("port listener", type, sock, sock, -1, ++ hpn_buffer_size, CHAN_TCP_PACKET_DEFAULT, ++ 0, "port listener", 1); + c->path = xstrdup(host); + c->host_port = port_to_connect; + c->listening_port = listen_port; +@@ -3151,10 +3206,17 @@ + *chanids = xcalloc(num_socks + 1, sizeof(**chanids)); + for (n = 0; n < num_socks; n++) { + sock = socks[n]; ++ /* Is this really necassary? */ ++ if (hpn_disabled) + nc = channel_new("x11 listener", + SSH_CHANNEL_X11_LISTENER, sock, sock, -1, + CHAN_X11_WINDOW_DEFAULT, CHAN_X11_PACKET_DEFAULT, + 0, "X11 inet listener", 1); ++ else ++ nc = channel_new("x11 listener", ++ SSH_CHANNEL_X11_LISTENER, sock, sock, -1, ++ hpn_buffer_size, CHAN_X11_PACKET_DEFAULT, ++ 0, "X11 inet listener", 1); + nc->single_connection = single_connection; + (*chanids)[n] = nc->self; + } +diff -urN channels.h channels.h +--- channels.h 2009-02-14 08:28:21.000000000 +0300 ++++ channels.h 2009-05-02 17:38:18.000000000 +0400 +@@ -115,8 +115,10 @@ + u_int local_window_max; + u_int local_consumed; + u_int local_maxpacket; ++ int dynamic_window; + int extended_usage; + int single_connection; ++ u_int tcpwinsz; + + char *ctype; /* type */ + +@@ -146,9 +148,11 @@ + + /* default window/packet sizes for tcp/x11-fwd-channel */ + #define CHAN_SES_PACKET_DEFAULT (32*1024) +-#define CHAN_SES_WINDOW_DEFAULT (64*CHAN_SES_PACKET_DEFAULT) ++#define CHAN_SES_WINDOW_DEFAULT (4*CHAN_SES_PACKET_DEFAULT) ++ + #define CHAN_TCP_PACKET_DEFAULT (32*1024) +-#define CHAN_TCP_WINDOW_DEFAULT (64*CHAN_TCP_PACKET_DEFAULT) ++#define CHAN_TCP_WINDOW_DEFAULT (4*CHAN_TCP_PACKET_DEFAULT) ++ + #define CHAN_X11_PACKET_DEFAULT (16*1024) + #define CHAN_X11_WINDOW_DEFAULT (4*CHAN_X11_PACKET_DEFAULT) + +@@ -221,7 +225,7 @@ + + void channel_prepare_select(fd_set **, fd_set **, int *, u_int*, int); + void channel_after_select(fd_set *, fd_set *); +-void channel_output_poll(void); ++int channel_output_poll(void); + + int channel_not_very_much_buffered_data(void); + void channel_close_all(void); +@@ -277,4 +281,7 @@ + void chan_write_failed(Channel *); + void chan_obuf_empty(Channel *); + ++/* hpn handler */ ++void channel_set_hpn(int, int); ++ + #endif +diff -urN cipher-ctr-mt.c cipher-ctr-mt.c +--- cipher-ctr-mt.c 1970-01-01 03:00:00.000000000 +0300 ++++ cipher-ctr-mt.c 2009-05-02 17:38:18.000000000 +0400 +@@ -0,0 +1,473 @@ ++/* ++ * OpenSSH Multi-threaded AES-CTR Cipher ++ * ++ * Author: Benjamin Bennett <ben@psc.edu> ++ * Copyright (c) 2008 Pittsburgh Supercomputing Center. All rights reserved. ++ * ++ * Based on original OpenSSH AES-CTR cipher. Small portions remain unchanged, ++ * Copyright (c) 2003 Markus Friedl <markus@openbsd.org> ++ * ++ * Permission to use, copy, modify, and distribute this software for any ++ * purpose with or without fee is hereby granted, provided that the above ++ * copyright notice and this permission notice appear in all copies. ++ * ++ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES ++ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF ++ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ++ * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES ++ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ++ * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF ++ * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. ++ */ ++#include "includes.h" ++ ++#include <sys/types.h> ++ ++#include <stdarg.h> ++#include <string.h> ++ ++#include <openssl/evp.h> ++ ++#include "xmalloc.h" ++#include "log.h" ++ ++/* compatibility with old or broken OpenSSL versions */ ++#include "openbsd-compat/openssl-compat.h" ++ ++#ifndef USE_BUILTIN_RIJNDAEL ++#include <openssl/aes.h> ++#endif ++ ++#include <pthread.h> ++ ++/*-------------------- TUNABLES --------------------*/ ++/* Number of pregen threads to use */ ++#define CIPHER_THREADS 2 ++ ++/* Number of keystream queues */ ++#define NUMKQ (CIPHER_THREADS + 2) ++ ++/* Length of a keystream queue */ ++#define KQLEN 4096 ++ ++/* Processor cacheline length */ ++#define CACHELINE_LEN 64 ++ ++/* Collect thread stats and print at cancellation when in debug mode */ ++/* #define CIPHER_THREAD_STATS */ ++ ++/* Use single-byte XOR instead of 8-byte XOR */ ++/* #define CIPHER_BYTE_XOR */ ++/*-------------------- END TUNABLES --------------------*/ ++ ++ ++const EVP_CIPHER *evp_aes_ctr_mt(void); ++ ++#ifdef CIPHER_THREAD_STATS ++/* ++ * Struct to collect thread stats ++ */ ++struct thread_stats { ++ u_int fills; ++ u_int skips; ++ u_int waits; ++ u_int drains; ++}; ++ ++/* ++ * Debug print the thread stats ++ * Use with pthread_cleanup_push for displaying at thread cancellation ++ */ ++static void ++thread_loop_stats(void *x) ++{ ++ struct thread_stats *s = x; ++ ++ debug("tid %lu - %u fills, %u skips, %u waits", pthread_self(), ++ s->fills, s->skips, s->waits); ++} ++ ++ #define STATS_STRUCT(s) struct thread_stats s ++ #define STATS_INIT(s) { memset(&s, 0, sizeof(s)); } ++ #define STATS_FILL(s) { s.fills++; } ++ #define STATS_SKIP(s) { s.skips++; } ++ #define STATS_WAIT(s) { s.waits++; } ++ #define STATS_DRAIN(s) { s.drains++; } ++#else ++ #define STATS_STRUCT(s) ++ #define STATS_INIT(s) ++ #define STATS_FILL(s) ++ #define STATS_SKIP(s) ++ #define STATS_WAIT(s) ++ #define STATS_DRAIN(s) ++#endif ++ ++/* Keystream Queue state */ ++enum { ++ KQINIT, ++ KQEMPTY, ++ KQFILLING, ++ KQFULL, ++ KQDRAINING ++}; ++ ++/* Keystream Queue struct */ ++struct kq { ++ u_char keys[KQLEN][AES_BLOCK_SIZE]; ++ u_char ctr[AES_BLOCK_SIZE]; ++ u_char pad0[CACHELINE_LEN]; ++ volatile int qstate; ++ pthread_mutex_t lock; ++ pthread_cond_t cond; ++ u_char pad1[CACHELINE_LEN]; ++}; ++ ++/* Context struct */ ++struct ssh_aes_ctr_ctx ++{ ++ struct kq q[NUMKQ]; ++ AES_KEY aes_ctx; ++ STATS_STRUCT(stats); ++ u_char aes_counter[AES_BLOCK_SIZE]; ++ pthread_t tid[CIPHER_THREADS]; ++ int state; ++ int qidx; ++ int ridx; ++}; ++ ++/* <friedl> ++ * increment counter 'ctr', ++ * the counter is of size 'len' bytes and stored in network-byte-order. ++ * (LSB at ctr[len-1], MSB at ctr[0]) ++ */ ++static void ++ssh_ctr_inc(u_char *ctr, u_int len) ++{ ++ int i; ++ ++ for (i = len - 1; i >= 0; i--) ++ if (++ctr[i]) /* continue on overflow */ ++ return; ++} ++ ++/* ++ * Add num to counter 'ctr' ++ */ ++static void ++ssh_ctr_add(u_char *ctr, uint32_t num, u_int len) ++{ ++ int i; ++ uint16_t n; ++ ++ for (n = 0, i = len - 1; i >= 0 && (num || n); i--) { ++ n = ctr[i] + (num & 0xff) + n; ++ num >>= 8; ++ ctr[i] = n & 0xff; ++ n >>= 8; ++ } ++} ++ ++/* ++ * Threads may be cancelled in a pthread_cond_wait, we must free the mutex ++ */ ++static void ++thread_loop_cleanup(void *x) ++{ ++ pthread_mutex_unlock((pthread_mutex_t *)x); ++} ++ ++/* ++ * The life of a pregen thread: ++ * Find empty keystream queues and fill them using their counter. ++ * When done, update counter for the next fill. ++ */ ++static void * ++thread_loop(void *x) ++{ ++ AES_KEY key; ++ STATS_STRUCT(stats); ++ struct ssh_aes_ctr_ctx *c = x; ++ struct kq *q; ++ int i; ++ int qidx; ++ ++ /* Threads stats on cancellation */ ++ STATS_INIT(stats); ++#ifdef CIPHER_THREAD_STATS ++ pthread_cleanup_push(thread_loop_stats, &stats); ++#endif ++ ++ /* Thread local copy of AES key */ ++ memcpy(&key, &c->aes_ctx, sizeof(key)); ++ ++ /* ++ * Handle the special case of startup, one thread must fill ++ * the first KQ then mark it as draining. Lock held throughout. ++ */ ++ if (pthread_equal(pthread_self(), c->tid[0])) { ++ q = &c->q[0]; ++ pthread_mutex_lock(&q->lock); ++ if (q->qstate == KQINIT) { ++ for (i = 0; i < KQLEN; i++) { ++ AES_encrypt(q->ctr, q->keys[i], &key); ++ ssh_ctr_inc(q->ctr, AES_BLOCK_SIZE); ++ } ++ ssh_ctr_add(q->ctr, KQLEN * (NUMKQ - 1), AES_BLOCK_SIZE); ++ q->qstate = KQDRAINING; ++ STATS_FILL(stats); ++ pthread_cond_broadcast(&q->cond); ++ } ++ pthread_mutex_unlock(&q->lock); ++ } ++ else ++ STATS_SKIP(stats); ++ ++ /* ++ * Normal case is to find empty queues and fill them, skipping over ++ * queues already filled by other threads and stopping to wait for ++ * a draining queue to become empty. ++ * ++ * Multiple threads may be waiting on a draining queue and awoken ++ * when empty. The first thread to wake will mark it as filling, ++ * others will move on to fill, skip, or wait on the next queue. ++ */ ++ for (qidx = 1;; qidx = (qidx + 1) % NUMKQ) { ++ /* Check if I was cancelled, also checked in cond_wait */ ++ pthread_testcancel(); ++ ++ /* Lock queue and block if its draining */ ++ q = &c->q[qidx]; ++ pthread_mutex_lock(&q->lock); ++ pthread_cleanup_push(thread_loop_cleanup, &q->lock); ++ while (q->qstate == KQDRAINING || q->qstate == KQINIT) { ++ STATS_WAIT(stats); ++ pthread_cond_wait(&q->cond, &q->lock); ++ } ++ pthread_cleanup_pop(0); ++ ++ /* If filling or full, somebody else got it, skip */ ++ if (q->qstate != KQEMPTY) { ++ pthread_mutex_unlock(&q->lock); ++ STATS_SKIP(stats); ++ continue; ++ } ++ ++ /* ++ * Empty, let's fill it. ++ * Queue lock is relinquished while we do this so others ++ * can see that it's being filled. ++ */ ++ q->qstate = KQFILLING; ++ pthread_mutex_unlock(&q->lock); ++ for (i = 0; i < KQLEN; i++) { ++ AES_encrypt(q->ctr, q->keys[i], &key); ++ ssh_ctr_inc(q->ctr, AES_BLOCK_SIZE); ++ } ++ ++ /* Re-lock, mark full and signal consumer */ ++ pthread_mutex_lock(&q->lock); ++ ssh_ctr_add(q->ctr, KQLEN * (NUMKQ - 1), AES_BLOCK_SIZE); ++ q->qstate = KQFULL; ++ STATS_FILL(stats); ++ pthread_cond_signal(&q->cond); ++ pthread_mutex_unlock(&q->lock); ++ } ++ ++#ifdef CIPHER_THREAD_STATS ++ /* Stats */ ++ pthread_cleanup_pop(1); ++#endif ++ ++ return NULL; ++} ++ ++static int ++ssh_aes_ctr(EVP_CIPHER_CTX *ctx, u_char *dest, const u_char *src, ++ u_int len) ++{ ++ struct ssh_aes_ctr_ctx *c; ++ struct kq *q, *oldq; ++ int ridx; ++ u_char *buf; ++ ++ if (len == 0) ++ return (1); ++ if ((c = EVP_CIPHER_CTX_get_app_data(ctx)) == NULL) ++ return (0); ++ ++ q = &c->q[c->qidx]; ++ ridx = c->ridx; ++ ++ /* src already padded to block multiple */ ++ while (len > 0) { ++ buf = q->keys[ridx]; ++ ++#ifdef CIPHER_BYTE_XOR ++ dest[0] = src[0] ^ buf[0]; ++ dest[1] = src[1] ^ buf[1]; ++ dest[2] = src[2] ^ buf[2]; ++ dest[3] = src[3] ^ buf[3]; ++ dest[4] = src[4] ^ buf[4]; ++ dest[5] = src[5] ^ buf[5]; ++ dest[6] = src[6] ^ buf[6]; ++ dest[7] = src[7] ^ buf[7]; ++ dest[8] = src[8] ^ buf[8]; ++ dest[9] = src[9] ^ buf[9]; ++ dest[10] = src[10] ^ buf[10]; ++ dest[11] = src[11] ^ buf[11]; ++ dest[12] = src[12] ^ buf[12]; ++ dest[13] = src[13] ^ buf[13]; ++ dest[14] = src[14] ^ buf[14]; ++ dest[15] = src[15] ^ buf[15]; ++#else ++ *(uint64_t *)dest = *(uint64_t *)src ^ *(uint64_t *)buf; ++ *(uint64_t *)(dest + 8) = *(uint64_t *)(src + 8) ^ ++ *(uint64_t *)(buf + 8); ++#endif ++ ++ dest += 16; ++ src += 16; ++ len -= 16; ++ ssh_ctr_inc(ctx->iv, AES_BLOCK_SIZE); ++ ++ /* Increment read index, switch queues on rollover */ ++ if ((ridx = (ridx + 1) % KQLEN) == 0) { ++ oldq = q; ++ ++ /* Mark next queue draining, may need to wait */ ++ c->qidx = (c->qidx + 1) % NUMKQ; ++ q = &c->q[c->qidx]; ++ pthread_mutex_lock(&q->lock); ++ while (q->qstate != KQFULL) { ++ STATS_WAIT(c->stats); ++ pthread_cond_wait(&q->cond, &q->lock); ++ } ++ q->qstate = KQDRAINING; ++ pthread_mutex_unlock(&q->lock); ++ ++ /* Mark consumed queue empty and signal producers */ ++ pthread_mutex_lock(&oldq->lock); ++ oldq->qstate = KQEMPTY; ++ STATS_DRAIN(c->stats); ++ pthread_cond_broadcast(&oldq->cond); ++ pthread_mutex_unlock(&oldq->lock); ++ } ++ } ++ c->ridx = ridx; ++ return (1); ++} ++ ++#define HAVE_NONE 0 ++#define HAVE_KEY 1 ++#define HAVE_IV 2 ++static int ++ssh_aes_ctr_init(EVP_CIPHER_CTX *ctx, const u_char *key, const u_char *iv, ++ int enc) ++{ ++ struct ssh_aes_ctr_ctx *c; ++ int i; ++ ++ if ((c = EVP_CIPHER_CTX_get_app_data(ctx)) == NULL) { ++ c = xmalloc(sizeof(*c)); ++ ++ c->state = HAVE_NONE; ++ for (i = 0; i < NUMKQ; i++) { ++ pthread_mutex_init(&c->q[i].lock, NULL); ++ pthread_cond_init(&c->q[i].cond, NULL); ++ } ++ ++ STATS_INIT(c->stats); ++ ++ EVP_CIPHER_CTX_set_app_data(ctx, c); ++ } ++ ++ if (c->state == (HAVE_KEY | HAVE_IV)) { ++ /* Cancel pregen threads */ ++ for (i = 0; i < CIPHER_THREADS; i++) ++ pthread_cancel(c->tid[i]); ++ for (i = 0; i < CIPHER_THREADS; i++) ++ pthread_join(c->tid[i], NULL); ++ /* Start over getting key & iv */ ++ c->state = HAVE_NONE; ++ } ++ ++ if (key != NULL) { ++ AES_set_encrypt_key(key, EVP_CIPHER_CTX_key_length(ctx) * 8, ++ &c->aes_ctx); ++ c->state |= HAVE_KEY; ++ } ++ ++ if (iv != NULL) { ++ memcpy(ctx->iv, iv, AES_BLOCK_SIZE); ++ c->state |= HAVE_IV; ++ } ++ ++ if (c->state == (HAVE_KEY | HAVE_IV)) { ++ /* Clear queues */ ++ memcpy(c->q[0].ctr, ctx->iv, AES_BLOCK_SIZE); ++ c->q[0].qstate = KQINIT; ++ for (i = 1; i < NUMKQ; i++) { ++ memcpy(c->q[i].ctr, ctx->iv, AES_BLOCK_SIZE); ++ ssh_ctr_add(c->q[i].ctr, i * KQLEN, AES_BLOCK_SIZE); ++ c->q[i].qstate = KQEMPTY; ++ } ++ c->qidx = 0; ++ c->ridx = 0; ++ ++ /* Start threads */ ++ for (i = 0; i < CIPHER_THREADS; i++) { ++ pthread_create(&c->tid[i], NULL, thread_loop, c); ++ } ++ pthread_mutex_lock(&c->q[0].lock); ++ while (c->q[0].qstate != KQDRAINING) ++ pthread_cond_wait(&c->q[0].cond, &c->q[0].lock); ++ pthread_mutex_unlock(&c->q[0].lock); ++ ++ } ++ return (1); ++} ++ ++static int ++ssh_aes_ctr_cleanup(EVP_CIPHER_CTX *ctx) ++{ ++ struct ssh_aes_ctr_ctx *c; ++ int i; ++ ++ if ((c = EVP_CIPHER_CTX_get_app_data(ctx)) != NULL) { ++#ifdef CIPHER_THREAD_STATS ++ debug("main thread: %u drains, %u waits", c->stats.drains, ++ c->stats.waits); ++#endif ++ /* Cancel pregen threads */ ++ for (i = 0; i < CIPHER_THREADS; i++) ++ pthread_cancel(c->tid[i]); ++ for (i = 0; i < CIPHER_THREADS; i++) ++ pthread_join(c->tid[i], NULL); ++ ++ memset(c, 0, sizeof(*c)); ++ xfree(c); ++ EVP_CIPHER_CTX_set_app_data(ctx, NULL); ++ } ++ return (1); ++} ++ ++/* <friedl> */ ++const EVP_CIPHER * ++evp_aes_ctr_mt(void) ++{ ++ static EVP_CIPHER aes_ctr; ++ ++ memset(&aes_ctr, 0, sizeof(EVP_CIPHER)); ++ aes_ctr.nid = NID_undef; ++ aes_ctr.block_size = AES_BLOCK_SIZE; ++ aes_ctr.iv_len = AES_BLOCK_SIZE; ++ aes_ctr.key_len = 16; ++ aes_ctr.init = ssh_aes_ctr_init; ++ aes_ctr.cleanup = ssh_aes_ctr_cleanup; ++ aes_ctr.do_cipher = ssh_aes_ctr; ++#ifndef SSH_OLD_EVP ++ aes_ctr.flags = EVP_CIPH_CBC_MODE | EVP_CIPH_VARIABLE_LENGTH | ++ EVP_CIPH_ALWAYS_CALL_INIT | EVP_CIPH_CUSTOM_IV; ++#endif ++ return (&aes_ctr); ++} +diff -urN cipher.c cipher.c +--- cipher.c 2009-01-28 08:38:41.000000000 +0300 ++++ cipher.c 2009-05-02 17:43:11.000000000 +0400 +@@ -55,6 +55,7 @@ + extern const EVP_CIPHER *evp_ssh1_3des(void); + extern void ssh1_3des_iv(EVP_CIPHER_CTX *, int, u_char *, int); + extern const EVP_CIPHER *evp_aes_128_ctr(void); ++extern const EVP_CIPHER *evp_aes_ctr_mt(void); + extern void ssh_aes_ctr_iv(EVP_CIPHER_CTX *, int, u_char *, u_int); + + struct Cipher { +@@ -82,9 +83,9 @@ + { "aes256-cbc", SSH_CIPHER_SSH2, 16, 32, 0, 1, EVP_aes_256_cbc }, + { "rijndael-cbc@lysator.liu.se", + SSH_CIPHER_SSH2, 16, 32, 0, 1, EVP_aes_256_cbc }, +- { "aes128-ctr", SSH_CIPHER_SSH2, 16, 16, 0, 0, evp_aes_128_ctr }, +- { "aes192-ctr", SSH_CIPHER_SSH2, 16, 24, 0, 0, evp_aes_128_ctr }, +- { "aes256-ctr", SSH_CIPHER_SSH2, 16, 32, 0, 0, evp_aes_128_ctr }, ++ { "aes128-ctr", SSH_CIPHER_SSH2, 16, 16, 0, evp_aes_ctr_mt }, ++ { "aes192-ctr", SSH_CIPHER_SSH2, 16, 24, 0, evp_aes_ctr_mt }, ++ { "aes256-ctr", SSH_CIPHER_SSH2, 16, 32, 0, evp_aes_ctr_mt }, + #ifdef USE_CIPHER_ACSS + { "acss@openssh.org", SSH_CIPHER_SSH2, 16, 5, 0, 0, EVP_acss }, + #endif +@@ -163,7 +164,8 @@ + for ((p = strsep(&cp, CIPHER_SEP)); p && *p != '\0'; + (p = strsep(&cp, CIPHER_SEP))) { + c = cipher_by_name(p); +- if (c == NULL || c->number != SSH_CIPHER_SSH2) { ++ if (c == NULL || (c->number != SSH_CIPHER_SSH2 && ++c->number != SSH_CIPHER_NONE)) { + debug("bad cipher %s [%s]", p, names); + xfree(cipher_list); + return 0; +@@ -337,6 +339,7 @@ + int evplen; + + switch (c->number) { ++ case SSH_CIPHER_NONE: + case SSH_CIPHER_SSH2: + case SSH_CIPHER_DES: + case SSH_CIPHER_BLOWFISH: +@@ -371,6 +374,7 @@ + int evplen = 0; + + switch (c->number) { ++ case SSH_CIPHER_NONE: + case SSH_CIPHER_SSH2: + case SSH_CIPHER_DES: + case SSH_CIPHER_BLOWFISH: +diff -urN clientloop.c clientloop.c +--- clientloop.c 2009-02-14 08:28:21.000000000 +0300 ++++ clientloop.c 2009-05-02 17:38:18.000000000 +0400 +@@ -1688,9 +1688,15 @@ + sock = x11_connect_display(); + if (sock < 0) + return NULL; ++ /* again is this really necessary for X11? */ ++ if (options.hpn_disabled) + c = channel_new("x11", + SSH_CHANNEL_X11_OPEN, sock, sock, -1, + CHAN_TCP_WINDOW_DEFAULT, CHAN_X11_PACKET_DEFAULT, 0, "x11", 1); ++ else ++ c = channel_new("x11", ++ SSH_CHANNEL_X11_OPEN, sock, sock, -1, ++ options.hpn_buffer_size, CHAN_X11_PACKET_DEFAULT, 0, "x11", 1); + c->force_drain = 1; + return c; + } +@@ -1710,9 +1716,15 @@ + sock = ssh_get_authentication_socket(); + if (sock < 0) + return NULL; ++ if (options.hpn_disabled) + c = channel_new("authentication agent connection", + SSH_CHANNEL_OPEN, sock, sock, -1, +- CHAN_X11_WINDOW_DEFAULT, CHAN_TCP_PACKET_DEFAULT, 0, ++ CHAN_X11_WINDOW_DEFAULT, CHAN_TCP_WINDOW_DEFAULT, 0, ++ "authentication agent connection", 1); ++ else ++ c = channel_new("authentication agent connection", ++ SSH_CHANNEL_OPEN, sock, sock, -1, ++ options.hpn_buffer_size, options.hpn_buffer_size, 0, + "authentication agent connection", 1); + c->force_drain = 1; + return c; +@@ -1740,10 +1752,18 @@ + return -1; + } + ++ if(options.hpn_disabled) ++ c = channel_new("tun", SSH_CHANNEL_OPENING, fd, fd, -1, ++ CHAN_TCP_WINDOW_DEFAULT, CHAN_TCP_PACKET_DEFAULT, ++ 0, "tun", 1); ++ else + c = channel_new("tun", SSH_CHANNEL_OPENING, fd, fd, -1, +- CHAN_TCP_WINDOW_DEFAULT, CHAN_TCP_PACKET_DEFAULT, 0, "tun", 1); ++ options.hpn_buffer_size, CHAN_TCP_PACKET_DEFAULT, ++ 0, "tun", 1); + c->datagram = 1; + ++ ++ + #if defined(SSH_TUN_FILTER) + if (options.tun_open == SSH_TUNMODE_POINTOPOINT) + channel_register_filter(c->self, sys_tun_infilter, +diff -urN compat.c compat.c +--- compat.c 2008-11-03 11:20:14.000000000 +0300 ++++ compat.c 2009-05-02 17:38:18.000000000 +0400 +@@ -170,6 +170,15 @@ + strlen(check[i].pat), 0) == 1) { + debug("match: %s pat %s", version, check[i].pat); + datafellows = check[i].bugs; ++ /* Check to see if the remote side is OpenSSH and not HPN */ ++ if(strstr(version,"OpenSSH") != NULL) ++ { ++ if (strstr(version,"hpn") == NULL) ++ { ++ datafellows |= SSH_BUG_LARGEWINDOW; ++ debug("Remote is NON-HPN aware"); ++ } ++ } + return; + } + } +diff -urN compat.h compat.h +--- compat.h 2008-11-03 11:20:14.000000000 +0300 ++++ compat.h 2009-05-02 17:40:04.000000000 +0400 +@@ -58,6 +58,7 @@ + #define SSH_OLD_FORWARD_ADDR 0x01000000 + #define SSH_BUG_RFWD_ADDR 0x02000000 + #define SSH_NEW_OPENSSH 0x04000000 ++#define SSH_BUG_LARGEWINDOW 0x08000000 + + void enable_compat13(void); + void enable_compat20(void); +diff -urN kex.c kex.c +--- kex.c 2008-11-03 11:19:12.000000000 +0300 ++++ kex.c 2009-05-02 17:38:18.000000000 +0400 +@@ -48,6 +48,7 @@ + #include "match.h" + #include "dispatch.h" + #include "monitor.h" ++#include "canohost.h" + + #define KEX_COOKIE_LEN 16 + +@@ -64,7 +65,8 @@ + static void kex_choose_conf(Kex *); + + /* put algorithm proposal into buffer */ +-static void ++/* used in sshconnect.c as well as kex.c */ ++void + kex_prop2buf(Buffer *b, char *proposal[PROPOSAL_MAX]) + { + u_int i; +@@ -376,6 +378,13 @@ + int nenc, nmac, ncomp; + u_int mode, ctos, need; + int first_kex_follows, type; ++ int log_flag = 0; ++ ++ int auth_flag; ++ ++ auth_flag = packet_authentication_state(); ++ ++ debug ("AUTH STATE IS %d", auth_flag); + + my = kex_buf2prop(&kex->my, NULL); + peer = kex_buf2prop(&kex->peer, &first_kex_follows); +@@ -400,11 +409,34 @@ + choose_enc (&newkeys->enc, cprop[nenc], sprop[nenc]); + choose_mac (&newkeys->mac, cprop[nmac], sprop[nmac]); + choose_comp(&newkeys->comp, cprop[ncomp], sprop[ncomp]); ++ debug("REQUESTED ENC.NAME is '%s'", newkeys->enc.name); ++ if (strcmp(newkeys->enc.name, "none") == 0) { ++ debug("Requesting NONE. Authflag is %d", auth_flag); ++ if (auth_flag == 1) { ++ debug("None requested post authentication."); ++ } else { ++ fatal("Pre-authentication none cipher requests are not allowed."); ++ } ++ } + debug("kex: %s %s %s %s", + ctos ? "client->server" : "server->client", + newkeys->enc.name, + newkeys->mac.name, + newkeys->comp.name); ++ /* client starts withctos = 0 && log flag = 0 and no log*/ ++ /* 2nd client pass ctos=1 and flag = 1 so no log*/ ++ /* server starts with ctos =1 && log_flag = 0 so log */ ++ /* 2nd sever pass ctos = 1 && log flag = 1 so no log*/ ++ /* -cjr*/ ++ if (ctos && !log_flag) { ++ logit("SSH: Server;Ltype: Kex;Remote: %s-%d;Enc: %s;MAC: %s;Comp: %s", ++ get_remote_ipaddr(), ++ get_remote_port(), ++ newkeys->enc.name, ++ newkeys->mac.name, ++ newkeys->comp.name); ++ } ++ log_flag = 1; + } + choose_kex(kex, cprop[PROPOSAL_KEX_ALGS], sprop[PROPOSAL_KEX_ALGS]); + choose_hostkeyalg(kex, cprop[PROPOSAL_SERVER_HOST_KEY_ALGS], +diff -urN kex.h kex.h +--- kex.h 2007-06-11 08:01:42.000000000 +0400 ++++ kex.h 2009-05-02 17:38:18.000000000 +0400 +@@ -127,6 +127,8 @@ + void (*kex[KEX_MAX])(Kex *); + }; + ++void kex_prop2buf(Buffer *, char *proposal[PROPOSAL_MAX]); ++ + Kex *kex_setup(char *[PROPOSAL_MAX]); + void kex_finish(Kex *); + +diff -urN myproposal.h myproposal.h +--- myproposal.h 2009-01-28 08:33:31.000000000 +0300 ++++ myproposal.h 2009-05-02 17:45:01.000000000 +0400 +@@ -47,6 +47,8 @@ + "arcfour256,arcfour128," \ + "aes128-cbc,3des-cbc,blowfish-cbc,cast128-cbc," \ + "aes192-cbc,aes256-cbc,arcfour,rijndael-cbc@lysator.liu.se" ++#define KEX_ENCRYPT_INCLUDE_NONE KEX_DEFAULT_ENCRYPT \ ++ ",none" + #define KEX_DEFAULT_MAC \ + "hmac-md5,hmac-sha1,umac-64@openssh.com,hmac-ripemd160," \ + "hmac-ripemd160@openssh.com," \ +diff -urN packet.c packet.c +--- packet.c 2009-02-14 08:35:01.000000000 +0300 ++++ packet.c 2009-05-02 17:38:18.000000000 +0400 +@@ -775,7 +775,7 @@ + /* + * Finalize packet in SSH2 format (compress, mac, encrypt, enqueue) + */ +-static void ++static int + packet_send2_wrapped(void) + { + u_char type, *cp, *macbuf = NULL; +@@ -888,11 +888,13 @@ + set_newkeys(MODE_OUT); + else if (type == SSH2_MSG_USERAUTH_SUCCESS && server_side) + packet_enable_delayed_compress(); ++ return(packet_length); + } + +-static void ++static int + packet_send2(void) + { ++ static int packet_length = 0; + static int rekeying = 0; + struct packet *p; + u_char type, *cp; +@@ -910,7 +912,7 @@ + memcpy(&p->payload, &outgoing_packet, sizeof(Buffer)); + buffer_init(&outgoing_packet); + TAILQ_INSERT_TAIL(&outgoing, p, next); +- return; ++ return(sizeof(Buffer)); + } + } + +@@ -918,7 +920,7 @@ + if (type == SSH2_MSG_KEXINIT) + rekeying = 1; + +- packet_send2_wrapped(); ++ packet_length = packet_send2_wrapped(); + + /* after a NEWKEYS message we can send the complete queue */ + if (type == SSH2_MSG_NEWKEYS) { +@@ -931,19 +933,22 @@ + sizeof(Buffer)); + TAILQ_REMOVE(&outgoing, p, next); + xfree(p); +- packet_send2_wrapped(); ++ packet_length += packet_send2_wrapped(); + } + } ++ return(packet_length); + } + +-void ++int + packet_send(void) + { ++ int packet_len = 0; + if (compat20) +- packet_send2(); ++ packet_len = packet_send2(); + else + packet_send1(); + DBG(debug("packet_send done")); ++ return(packet_len); + } + + /* +@@ -1544,23 +1549,25 @@ + + /* Checks if there is any buffered output, and tries to write some of the output. */ + +-void ++int + packet_write_poll(void) + { +- int len = buffer_len(&output); ++ int len = 0; ++ len = buffer_len(&output); + + if (len > 0) { + len = write(connection_out, buffer_ptr(&output), len); + if (len == -1) { + if (errno == EINTR || errno == EAGAIN || + errno == EWOULDBLOCK) +- return; ++ return (0); + fatal("Write failed: %.100s", strerror(errno)); + } + if (len == 0) + fatal("Write connection closed"); + buffer_consume(&output, len); + } ++ return(len); + } + + +@@ -1569,16 +1576,17 @@ + * written. + */ + +-void ++int + packet_write_wait(void) + { + fd_set *setp; + int ret, ms_remain; + struct timeval start, timeout, *timeoutp = NULL; ++ u_int bytes_sent = 0; + + setp = (fd_set *)xcalloc(howmany(connection_out + 1, NFDBITS), + sizeof(fd_mask)); +- packet_write_poll(); ++ bytes_sent += packet_write_poll(); + while (packet_have_data_to_write()) { + memset(setp, 0, howmany(connection_out + 1, NFDBITS) * + sizeof(fd_mask)); +@@ -1612,7 +1620,7 @@ + "waiting to write", get_remote_ipaddr()); + cleanup_exit(255); + } +- packet_write_poll(); ++ bytes_sent += packet_write_poll(); + } + xfree(setp); + } +@@ -1736,12 +1744,24 @@ + } + } + ++int rekey_requested = 0; ++void ++packet_request_rekeying(void) ++{ ++ rekey_requested = 1; ++} ++ + #define MAX_PACKETS (1U<<31) + int + packet_need_rekeying(void) + { + if (datafellows & SSH_BUG_NOREKEY) + return 0; ++ if (rekey_requested == 1) ++ { ++ rekey_requested = 0; ++ return 1; ++ } + return + (p_send.packets > MAX_PACKETS) || + (p_read.packets > MAX_PACKETS) || +@@ -1766,3 +1786,9 @@ + { + after_authentication = 1; + } ++ ++int ++packet_authentication_state(void) ++{ ++ return(after_authentication); ++} +diff -urN packet.h packet.h +--- packet.h 2008-07-11 11:36:48.000000000 +0400 ++++ packet.h 2009-05-02 17:38:18.000000000 +0400 +@@ -20,6 +20,9 @@ + + #include <openssl/bn.h> + ++void ++packet_request_rekeying(void); ++ + void packet_set_connection(int, int); + void packet_set_timeout(int, int); + void packet_set_nonblocking(void); +@@ -35,6 +38,7 @@ + int packet_is_interactive(void); + void packet_set_server(void); + void packet_set_authenticated(void); ++int packet_authentication_state(void); + + void packet_start(u_char); + void packet_put_char(int ch); +@@ -44,7 +48,7 @@ + void packet_put_string(const void *buf, u_int len); + void packet_put_cstring(const char *str); + void packet_put_raw(const void *buf, u_int len); +-void packet_send(void); ++int packet_send(void); + + int packet_read(void); + void packet_read_expect(int type); +@@ -73,8 +77,8 @@ + int packet_get_ssh1_cipher(void); + void packet_set_iv(int, u_char *); + +-void packet_write_poll(void); +-void packet_write_wait(void); ++int packet_write_poll(void); ++int packet_write_wait(void); + int packet_have_data_to_write(void); + int packet_not_very_much_data_to_write(void); + +diff -urN progressmeter.c progressmeter.c +--- progressmeter.c 2006-08-05 06:39:40.000000000 +0400 ++++ progressmeter.c 2009-05-02 17:38:18.000000000 +0400 +@@ -68,6 +68,8 @@ + static char *file; /* name of the file being transferred */ + static off_t end_pos; /* ending position of transfer */ + static off_t cur_pos; /* transfer position as of last refresh */ ++static off_t last_pos; ++static off_t max_delta_pos = 0; + static volatile off_t *counter; /* progress counter */ + static long stalled; /* how long we have been stalled */ + static int bytes_per_second; /* current speed in bytes per second */ +@@ -128,12 +130,17 @@ + int hours, minutes, seconds; + int i, len; + int file_len; ++ off_t delta_pos; + + transferred = *counter - cur_pos; + cur_pos = *counter; + now = time(NULL); + bytes_left = end_pos - cur_pos; + ++ delta_pos = cur_pos - last_pos; ++ if (delta_pos > max_delta_pos) ++ max_delta_pos = delta_pos; ++ + if (bytes_left > 0) + elapsed = now - last_update; + else { +@@ -158,7 +165,7 @@ + + /* filename */ + buf[0] = '\0'; +- file_len = win_size - 35; ++ file_len = win_size - 45; + if (file_len > 0) { + len = snprintf(buf, file_len + 1, "\r%s", file); + if (len < 0) +@@ -175,7 +182,8 @@ + percent = ((float)cur_pos / end_pos) * 100; + else + percent = 100; +- snprintf(buf + strlen(buf), win_size - strlen(buf), ++ ++ snprintf(buf + strlen(buf), win_size - strlen(buf-8), + " %3d%% ", percent); + + /* amount transferred */ +@@ -188,6 +196,15 @@ + (off_t)bytes_per_second); + strlcat(buf, "/s ", win_size); + ++ /* instantaneous rate */ ++ if (bytes_left > 0) ++ format_rate(buf + strlen(buf), win_size - strlen(buf), ++ delta_pos); ++ else ++ format_rate(buf + strlen(buf), win_size - strlen(buf), ++ max_delta_pos); ++ strlcat(buf, "/s ", win_size); ++ + /* ETA */ + if (!transferred) + stalled += elapsed; +@@ -224,6 +241,7 @@ + + atomicio(vwrite, STDOUT_FILENO, buf, win_size - 1); + last_update = now; ++ last_pos = cur_pos; + } + + /*ARGSUSED*/ +diff -urN readconf.c readconf.c +--- readconf.c 2009-05-02 17:37:11.000000000 +0400 ++++ readconf.c 2009-05-02 17:47:56.000000000 +0400 +@@ -131,6 +131,8 @@ + oSendEnv, oControlPath, oControlMaster, oHashKnownHosts, + oTunnel, oTunnelDevice, oLocalCommand, oPermitLocalCommand, + oVisualHostKey, oZeroKnowledgePasswordAuthentication, ++ oNoneEnabled, oTcpRcvBufPoll, oTcpRcvBuf, oNoneSwitch, oHPNDisabled, ++ oHPNBufferSize, + oDeprecated, oUnsupported + } OpCodes; + +@@ -228,6 +230,12 @@ + { "localcommand", oLocalCommand }, + { "permitlocalcommand", oPermitLocalCommand }, + { "visualhostkey", oVisualHostKey }, ++ { "noneenabled", oNoneEnabled }, ++ { "tcprcvbufpoll", oTcpRcvBufPoll }, ++ { "tcprcvbuf", oTcpRcvBuf }, ++ { "noneswitch", oNoneSwitch }, ++ { "hpndisabled", oHPNDisabled }, ++ { "hpnbuffersize", oHPNBufferSize }, + #ifdef JPAKE + { "zeroknowledgepasswordauthentication", + oZeroKnowledgePasswordAuthentication }, +@@ -465,6 +473,37 @@ + intptr = &options->check_host_ip; + goto parse_flag; + ++ case oNoneEnabled: ++ intptr = &options->none_enabled; ++ goto parse_flag; ++ ++ /* we check to see if the command comes from the */ ++ /* command line or not. If it does then enable it */ ++ /* otherwise fail. NONE should never be a default configuration */ ++ case oNoneSwitch: ++ if(strcmp(filename,"command-line")==0) ++ { ++ intptr = &options->none_switch; ++ goto parse_flag; ++ } else { ++ error("NoneSwitch is found in %.200s.\nYou may only use this configuration option from the command line", filename); ++ error("Continuing..."); ++ debug("NoneSwitch directive found in %.200s.", filename); ++ return 0; ++ } ++ ++ case oHPNDisabled: ++ intptr = &options->hpn_disabled; ++ goto parse_flag; ++ ++ case oHPNBufferSize: ++ intptr = &options->hpn_buffer_size; ++ goto parse_int; ++ ++ case oTcpRcvBufPoll: ++ intptr = &options->tcp_rcv_buf_poll; ++ goto parse_flag; ++ + case oVerifyHostKeyDNS: + intptr = &options->verify_host_key_dns; + goto parse_yesnoask; +@@ -643,6 +682,10 @@ + intptr = &options->connection_attempts; + goto parse_int; + ++ case oTcpRcvBuf: ++ intptr = &options->tcp_rcv_buf; ++ goto parse_int; ++ + case oCipher: + intptr = &options->cipher; + arg = strdelim(&s); +@@ -1065,6 +1108,12 @@ + options->permit_local_command = -1; + options->visual_host_key = -1; + options->zero_knowledge_password_authentication = -1; ++ options->none_switch = -1; ++ options->none_enabled = -1; ++ options->hpn_disabled = -1; ++ options->hpn_buffer_size = -1; ++ options->tcp_rcv_buf_poll = -1; ++ options->tcp_rcv_buf = -1; + } + + /* +@@ -1187,6 +1236,29 @@ + options->server_alive_interval = 0; + if (options->server_alive_count_max == -1) + options->server_alive_count_max = 3; ++ if (options->none_switch == -1) ++ options->none_switch = 0; ++ if (options->hpn_disabled == -1) ++ options->hpn_disabled = 0; ++ if (options->hpn_buffer_size > -1) ++ { ++ /* if a user tries to set the size to 0 set it to 1KB */ ++ if (options->hpn_buffer_size == 0) ++ options->hpn_buffer_size = 1024; ++ /*limit the buffer to 64MB*/ ++ if (options->hpn_buffer_size > 65536) ++ { ++ options->hpn_buffer_size = 65536*1024; ++ debug("User requested buffer larger than 64MB. Request reverted to 64MB"); ++ } ++ debug("hpn_buffer_size set to %d", options->hpn_buffer_size); ++ } ++ if (options->tcp_rcv_buf == 0) ++ options->tcp_rcv_buf = 1; ++ if (options->tcp_rcv_buf > -1) ++ options->tcp_rcv_buf *=1024; ++ if (options->tcp_rcv_buf_poll == -1) ++ options->tcp_rcv_buf_poll = 1; + if (options->control_master == -1) + options->control_master = 0; + if (options->hash_known_hosts == -1) +diff -urN readconf.h readconf.h +--- readconf.h 2009-02-14 08:28:21.000000000 +0300 ++++ readconf.h 2009-05-02 17:38:19.000000000 +0400 +@@ -57,6 +57,11 @@ + int compression_level; /* Compression level 1 (fast) to 9 + * (best). */ + int tcp_keep_alive; /* Set SO_KEEPALIVE. */ ++ int tcp_rcv_buf; /* user switch to set tcp recv buffer */ ++ int tcp_rcv_buf_poll; /* Option to poll recv buf every window transfer */ ++ int hpn_disabled; /* Switch to disable HPN buffer management */ ++ int hpn_buffer_size; /* User definable size for HPN buffer window */ ++ + LogLevel log_level; /* Level for logging. */ + + int port; /* Port to connect. */ +@@ -102,6 +107,8 @@ + + int enable_ssh_keysign; + int64_t rekey_limit; ++ int none_switch; /* Use none cipher */ ++ int none_enabled; /* Allow none to be used */ + int no_host_authentication_for_localhost; + int identities_only; + int server_alive_interval; +diff -urN scp.c scp.c +--- scp.c 2008-11-03 11:23:45.000000000 +0300 ++++ scp.c 2009-05-02 17:38:19.000000000 +0400 +@@ -632,7 +632,7 @@ + off_t i, statbytes; + size_t amt; + int fd = -1, haderr, indx; +- char *last, *name, buf[2048], encname[MAXPATHLEN]; ++ char *last, *name, buf[16384], encname[MAXPATHLEN]; + int len; + + for (indx = 0; indx < argc; ++indx) { +@@ -868,7 +868,7 @@ + mode_t mode, omode, mask; + off_t size, statbytes; + int setimes, targisdir, wrerrno = 0; +- char ch, *cp, *np, *targ, *why, *vect[1], buf[2048]; ++ char ch, *cp, *np, *targ, *why, *vect[1], buf[16384]; + struct timeval tv[2]; + + #define atime tv[0] +diff -urN servconf.c servconf.c +--- servconf.c 2009-05-02 17:37:11.000000000 +0400 ++++ servconf.c 2009-05-02 17:38:19.000000000 +0400 +@@ -266,6 +266,42 @@ + if (options->zero_knowledge_password_authentication == -1) + options->zero_knowledge_password_authentication = 0; + ++ if (options->hpn_disabled == -1) ++ options->hpn_disabled = 0; ++ ++ if (options->hpn_buffer_size == -1) { ++ /* option not explicitly set. Now we have to figure out */ ++ /* what value to use */ ++ if (options->hpn_disabled == 1) { ++ options->hpn_buffer_size = CHAN_SES_WINDOW_DEFAULT; ++ } else { ++ /* get the current RCV size and set it to that */ ++ /*create a socket but don't connect it */ ++ /* we use that the get the rcv socket size */ ++ sock = socket(AF_INET, SOCK_STREAM, 0); ++ getsockopt(sock, SOL_SOCKET, SO_RCVBUF, ++ &socksize, &socksizelen); ++ close(sock); ++ options->hpn_buffer_size = socksize; ++ debug ("HPN Buffer Size: %d", options->hpn_buffer_size); ++ ++ } ++ } else { ++ /* we have to do this incase the user sets both values in a contradictory */ ++ /* manner. hpn_disabled overrrides hpn_buffer_size*/ ++ if (options->hpn_disabled <= 0) { ++ if (options->hpn_buffer_size == 0) ++ options->hpn_buffer_size = 1; ++ /* limit the maximum buffer to 64MB */ ++ if (options->hpn_buffer_size > 64*1024) { ++ options->hpn_buffer_size = 64*1024*1024; ++ } else { ++ options->hpn_buffer_size *= 1024; ++ } ++ } else ++ options->hpn_buffer_size = CHAN_TCP_WINDOW_DEFAULT; ++ } ++ + /* Turn privilege separation on by default */ + if (use_privsep == -1) + use_privsep = 1; +@@ -428,6 +464,10 @@ + { "permitopen", sPermitOpen, SSHCFG_ALL }, + { "forcecommand", sForceCommand, SSHCFG_ALL }, + { "chrootdirectory", sChrootDirectory, SSHCFG_ALL }, ++ { "noneenabled", sNoneEnabled }, ++ { "hpndisabled", sHPNDisabled }, ++ { "hpnbuffersize", sHPNBufferSize }, ++ { "tcprcvbufpoll", sTcpRcvBufPoll }, + { NULL, sBadOption, 0 } + }; + +@@ -454,6 +494,7 @@ + + for (i = 0; keywords[i].name; i++) + if (strcasecmp(cp, keywords[i].name) == 0) { ++ debug ("Config token is %s", keywords[i].name); + *flags = keywords[i].flags; + return keywords[i].opcode; + } +@@ -851,6 +892,22 @@ + *intptr = value; + break; + ++ case sNoneEnabled: ++ intptr = &options->none_enabled; ++ goto parse_flag; ++ ++ case sTcpRcvBufPoll: ++ intptr = &options->tcp_rcv_buf_poll; ++ goto parse_flag; ++ ++ case sHPNDisabled: ++ intptr = &options->hpn_disabled; ++ goto parse_flag; ++ ++ case sHPNBufferSize: ++ intptr = &options->hpn_buffer_size; ++ goto parse_int; ++ + case sIgnoreUserKnownHosts: + intptr = &options->ignore_user_known_hosts; + goto parse_flag; +diff -urN servconf.h servconf.h +--- servconf.h 2009-01-28 08:31:23.000000000 +0300 ++++ servconf.h 2009-05-02 17:38:19.000000000 +0400 +@@ -145,6 +145,10 @@ + char *adm_forced_command; + + int use_pam; /* Enable auth via PAM */ ++ int none_enabled; /* enable NONE cipher switch */ ++ int tcp_rcv_buf_poll; /* poll tcp rcv window in autotuning kernels*/ ++ int hpn_disabled; /* disable hpn functionality. false by default */ ++ int hpn_buffer_size; /* set the hpn buffer size - default 3MB */ + + int permit_tun; + +diff -urN serverloop.c serverloop.c +--- serverloop.c 2009-02-14 08:33:09.000000000 +0300 ++++ serverloop.c 2009-05-02 17:38:19.000000000 +0400 +@@ -93,10 +93,10 @@ + static int fdout; /* Descriptor for stdout (for reading); + May be same number as fdin. */ + static int fderr; /* Descriptor for stderr. May be -1. */ +-static long stdin_bytes = 0; /* Number of bytes written to stdin. */ +-static long stdout_bytes = 0; /* Number of stdout bytes sent to client. */ +-static long stderr_bytes = 0; /* Number of stderr bytes sent to client. */ +-static long fdout_bytes = 0; /* Number of stdout bytes read from program. */ ++static u_long stdin_bytes = 0; /* Number of bytes written to stdin. */ ++static u_long stdout_bytes = 0; /* Number of stdout bytes sent to client. */ ++static u_long stderr_bytes = 0; /* Number of stderr bytes sent to client. */ ++static u_long fdout_bytes = 0; /* Number of stdout bytes read from program. */ + static int stdin_eof = 0; /* EOF message received from client. */ + static int fdout_eof = 0; /* EOF encountered reading from fdout. */ + static int fderr_eof = 0; /* EOF encountered readung from fderr. */ +@@ -121,6 +121,20 @@ + static void server_init_dispatch(void); + + /* ++ * Returns current time in seconds from Jan 1, 1970 with the maximum ++ * available resolution. ++ */ ++ ++static double ++get_current_time(void) ++{ ++ struct timeval tv; ++ gettimeofday(&tv, NULL); ++ return (double) tv.tv_sec + (double) tv.tv_usec / 1000000.0; ++} ++ ++ ++/* + * we write to this pipe if a SIGCHLD is caught in order to avoid + * the race between select() and child_terminated + */ +@@ -410,6 +424,7 @@ + } else { + /* Buffer any received data. */ + packet_process_incoming(buf, len); ++ fdout_bytes += len; + } + } + if (compat20) +@@ -432,6 +447,7 @@ + } else { + buffer_append(&stdout_buffer, buf, len); + fdout_bytes += len; ++ debug ("FD out now: %ld", fdout_bytes); + } + } + /* Read and buffer any available stderr data from the program. */ +@@ -499,7 +515,7 @@ + } + /* Send any buffered packet data to the client. */ + if (FD_ISSET(connection_out, writeset)) +- packet_write_poll(); ++ stdin_bytes += packet_write_poll(); + } + + /* +@@ -816,8 +832,10 @@ + { + fd_set *readset = NULL, *writeset = NULL; + int rekeying = 0, max_fd, nalloc = 0; ++ double start_time, total_time; + + debug("Entering interactive session for SSH2."); ++ start_time = get_current_time(); + + mysignal(SIGCHLD, sigchld_handler); + child_terminated = 0; +@@ -879,6 +897,11 @@ + + /* free remaining sessions, e.g. remove wtmp entries */ + session_destroy_all(NULL); ++ total_time = get_current_time() - start_time; ++ logit("SSH: Server;LType: Throughput;Remote: %s-%d;IN: %lu;OUT: %lu;Duration: %.1f;tPut_in: %.1f;tPut_out: %.1f", ++ get_remote_ipaddr(), get_remote_port(), ++ stdin_bytes, fdout_bytes, total_time, stdin_bytes / total_time, ++ fdout_bytes / total_time); + } + + static void +@@ -994,8 +1017,12 @@ + sock = tun_open(tun, mode); + if (sock < 0) + goto done; ++ if (options.hpn_disabled) + c = channel_new("tun", SSH_CHANNEL_OPEN, sock, sock, -1, + CHAN_TCP_WINDOW_DEFAULT, CHAN_TCP_PACKET_DEFAULT, 0, "tun", 1); ++ else ++ c = channel_new("tun", SSH_CHANNEL_OPEN, sock, sock, -1, ++ options.hpn_buffer_size, CHAN_TCP_PACKET_DEFAULT, 0, "tun", 1); + c->datagram = 1; + #if defined(SSH_TUN_FILTER) + if (mode == SSH_TUNMODE_POINTOPOINT) +@@ -1031,6 +1058,8 @@ + c = channel_new("session", SSH_CHANNEL_LARVAL, + -1, -1, -1, /*window size*/0, CHAN_SES_PACKET_DEFAULT, + 0, "server-session", 1); ++ if ((options.tcp_rcv_buf_poll) && (!options.hpn_disabled)) ++ c->dynamic_window = 1; + if (session_open(the_authctxt, c->self) != 1) { + debug("session open failed, free channel %d", c->self); + channel_free(c); +diff -urN session.c session.c +--- session.c 2009-05-02 17:37:11.000000000 +0400 ++++ session.c 2009-05-02 17:38:19.000000000 +0400 +@@ -230,6 +230,7 @@ + } + + /* Allocate a channel for the authentication agent socket. */ ++ /* this shouldn't matter if its hpn or not - cjr */ + nc = channel_new("auth socket", + SSH_CHANNEL_AUTH_SOCKET, sock, sock, -1, + CHAN_X11_WINDOW_DEFAULT, CHAN_X11_PACKET_DEFAULT, +@@ -2351,10 +2352,16 @@ + */ + if (s->chanid == -1) + fatal("no channel for session %d", s->self); ++ if (options.hpn_disabled) + channel_set_fds(s->chanid, + fdout, fdin, fderr, + fderr == -1 ? CHAN_EXTENDED_IGNORE : CHAN_EXTENDED_READ, + 1, is_tty, CHAN_SES_WINDOW_DEFAULT); ++ else ++ channel_set_fds(s->chanid, ++ fdout, fdin, fderr, ++ fderr == -1 ? CHAN_EXTENDED_IGNORE : CHAN_EXTENDED_READ, ++ 1, is_tty, options.hpn_buffer_size); + } + + /* +diff -urN sftp.1 sftp.1 +--- sftp.1 2009-01-28 08:14:09.000000000 +0300 ++++ sftp.1 2009-05-02 17:38:19.000000000 +0400 +@@ -203,7 +203,8 @@ + Specify how many requests may be outstanding at any one time. + Increasing this may slightly improve file transfer speed + but will increase memory usage. +-The default is 64 outstanding requests. ++The default is 256 outstanding requests providing for 8MB ++of outstanding data with a 32KB buffer. + .It Fl S Ar program + Name of the + .Ar program +diff -urN sftp.c sftp.c +--- sftp.c 2009-02-14 08:26:19.000000000 +0300 ++++ sftp.c 2009-05-02 17:38:19.000000000 +0400 +@@ -75,7 +75,7 @@ + size_t copy_buffer_len = 32768; + + /* Number of concurrent outstanding requests */ +-size_t num_requests = 64; ++size_t num_requests = 256; + + /* PID of ssh transport process */ + static pid_t sshpid = -1; +diff -urN ssh.c ssh.c +--- ssh.c 2009-05-02 17:37:11.000000000 +0400 ++++ ssh.c 2009-05-02 17:38:19.000000000 +0400 +@@ -492,9 +492,6 @@ + no_shell_flag = 1; + no_tty_flag = 1; + break; +- case 'T': +- no_tty_flag = 1; +- break; + case 'o': + dummy = 1; + line = xstrdup(optarg); +@@ -503,6 +500,13 @@ + exit(255); + xfree(line); + break; ++ case 'T': ++ no_tty_flag = 1; ++ /* ensure that the user doesn't try to backdoor a */ ++ /* null cipher switch on an interactive session */ ++ /* so explicitly disable it no matter what */ ++ options.none_switch=0; ++ break; + case 's': + subsystem_flag = 1; + break; +@@ -1159,6 +1163,9 @@ + { + Channel *c; + int window, packetmax, in, out, err; ++ int sock; ++ int socksize; ++ int socksizelen = sizeof(int); + + if (stdin_null_flag) { + in = open(_PATH_DEVNULL, O_RDONLY); +@@ -1179,9 +1186,75 @@ + if (!isatty(err)) + set_nonblock(err); + +- window = CHAN_SES_WINDOW_DEFAULT; ++ /* we need to check to see if what they want to do about buffer */ ++ /* sizes here. In a hpn to nonhpn connection we want to limit */ ++ /* the window size to something reasonable in case the far side */ ++ /* has the large window bug. In hpn to hpn connection we want to */ ++ /* use the max window size but allow the user to override it */ ++ /* lastly if they disabled hpn then use the ssh std window size */ ++ ++ /* so why don't we just do a getsockopt() here and set the */ ++ /* ssh window to that? In the case of a autotuning receive */ ++ /* window the window would get stuck at the initial buffer */ ++ /* size generally less than 96k. Therefore we need to set the */ ++ /* maximum ssh window size to the maximum hpn buffer size */ ++ /* unless the user has specifically set the tcprcvbufpoll */ ++ /* to no. In which case we *can* just set the window to the */ ++ /* minimum of the hpn buffer size and tcp receive buffer size */ ++ ++ if (tty_flag) ++ options.hpn_buffer_size = CHAN_SES_WINDOW_DEFAULT; ++ else ++ options.hpn_buffer_size = 2*1024*1024; ++ ++ if (datafellows & SSH_BUG_LARGEWINDOW) ++ { ++ debug("HPN to Non-HPN Connection"); ++ } ++ else ++ { ++ if (options.tcp_rcv_buf_poll <= 0) ++ { ++ sock = socket(AF_INET, SOCK_STREAM, 0); ++ getsockopt(sock, SOL_SOCKET, SO_RCVBUF, ++ &socksize, &socksizelen); ++ close(sock); ++ debug("socksize %d", socksize); ++ options.hpn_buffer_size = socksize; ++ debug ("HPNBufferSize set to TCP RWIN: %d", options.hpn_buffer_size); ++ } ++ else ++ { ++ if (options.tcp_rcv_buf > 0) ++ { ++ /*create a socket but don't connect it */ ++ /* we use that the get the rcv socket size */ ++ sock = socket(AF_INET, SOCK_STREAM, 0); ++ /* if they are using the tcp_rcv_buf option */ ++ /* attempt to set the buffer size to that */ ++ if (options.tcp_rcv_buf) ++ setsockopt(sock, SOL_SOCKET, SO_RCVBUF, (void *)&options.tcp_rcv_buf, ++ sizeof(options.tcp_rcv_buf)); ++ getsockopt(sock, SOL_SOCKET, SO_RCVBUF, ++ &socksize, &socksizelen); ++ close(sock); ++ debug("socksize %d", socksize); ++ options.hpn_buffer_size = socksize; ++ debug ("HPNBufferSize set to user TCPRcvBuf: %d", options.hpn_buffer_size); ++ } ++ } ++ ++ } ++ ++ debug("Final hpn_buffer_size = %d", options.hpn_buffer_size); ++ ++ window = options.hpn_buffer_size; ++ ++ channel_set_hpn(options.hpn_disabled, options.hpn_buffer_size); ++ + packetmax = CHAN_SES_PACKET_DEFAULT; + if (tty_flag) { ++ window = 4*CHAN_SES_PACKET_DEFAULT; + window >>= 1; + packetmax >>= 1; + } +@@ -1189,7 +1262,10 @@ + "session", SSH_CHANNEL_OPENING, in, out, err, + window, packetmax, CHAN_EXTENDED_WRITE, + "client-session", /*nonblock*/0); +- ++ if ((options.tcp_rcv_buf_poll > 0) && (!options.hpn_disabled)) { ++ c->dynamic_window = 1; ++ debug ("Enabled Dynamic Window Scaling\n"); ++ } + debug3("ssh_session2_open: channel_new: %d", c->self); + + channel_send_open(c->self); +diff -urN sshconnect.c sshconnect.c +--- sshconnect.c 2009-02-01 14:19:54.000000000 +0300 ++++ sshconnect.c 2009-05-02 17:38:19.000000000 +0400 +@@ -165,6 +165,31 @@ + } + + /* ++ * Set TCP receive buffer if requested. ++ * Note: tuning needs to happen after the socket is ++ * created but before the connection happens ++ * so winscale is negotiated properly -cjr ++ */ ++static void ++ssh_set_socket_recvbuf(int sock) ++{ ++ void *buf = (void *)&options.tcp_rcv_buf; ++ int sz = sizeof(options.tcp_rcv_buf); ++ int socksize; ++ int socksizelen = sizeof(int); ++ ++ debug("setsockopt Attempting to set SO_RCVBUF to %d", options.tcp_rcv_buf); ++ if (setsockopt(sock, SOL_SOCKET, SO_RCVBUF, buf, sz) >= 0) { ++ getsockopt(sock, SOL_SOCKET, SO_RCVBUF, &socksize, &socksizelen); ++ debug("setsockopt SO_RCVBUF: %.100s %d", strerror(errno), socksize); ++ } ++ else ++ error("Couldn't set socket receive buffer to %d: %.100s", ++ options.tcp_rcv_buf, strerror(errno)); ++} ++ ++ ++/* + * Creates a (possibly privileged) socket for use as the ssh connection. + */ + static int +@@ -187,12 +212,18 @@ + strerror(errno)); + else + debug("Allocated local port %d.", p); ++ ++ if (options.tcp_rcv_buf > 0) ++ ssh_set_socket_recvbuf(sock); + return sock; + } + sock = socket(ai->ai_family, ai->ai_socktype, ai->ai_protocol); + if (sock < 0) + error("socket: %.100s", strerror(errno)); + ++ if (options.tcp_rcv_buf > 0) ++ ssh_set_socket_recvbuf(sock); ++ + /* Bind the socket to an alternative local IP address */ + if (options.bind_address == NULL) + return sock; +@@ -536,7 +567,7 @@ + snprintf(buf, sizeof buf, "SSH-%d.%d-%.100s%s", + compat20 ? PROTOCOL_MAJOR_2 : PROTOCOL_MAJOR_1, + compat20 ? PROTOCOL_MINOR_2 : minor1, +- SSH_VERSION, compat20 ? "\r\n" : "\n"); ++ SSH_RELEASE, compat20 ? "\r\n" : "\n"); + if (atomicio(vwrite, connection_out, buf, strlen(buf)) != strlen(buf)) + fatal("write: %.100s", strerror(errno)); + client_version_string = xstrdup(buf); +diff -urN sshconnect2.c sshconnect2.c +--- sshconnect2.c 2008-11-05 08:20:47.000000000 +0300 ++++ sshconnect2.c 2009-05-02 17:38:19.000000000 +0400 +@@ -78,6 +78,12 @@ + extern char *client_version_string; + extern char *server_version_string; + extern Options options; ++extern Kex *xxx_kex; ++ ++/* tty_flag is set in ssh.c. use this in ssh_userauth2 */ ++/* if it is set then prevent the switch to the null cipher */ ++ ++extern int tty_flag; + + /* + * SSH2 key exchange +@@ -350,6 +356,28 @@ + pubkey_cleanup(&authctxt); + dispatch_range(SSH2_MSG_USERAUTH_MIN, SSH2_MSG_USERAUTH_MAX, NULL); + ++ /* if the user wants to use the none cipher do it */ ++ /* post authentication and only if the right conditions are met */ ++ /* both of the NONE commands must be true and there must be no */ ++ /* tty allocated */ ++ if ((options.none_switch == 1) && (options.none_enabled == 1)) ++ { ++ if (!tty_flag) /* no null on tty sessions */ ++ { ++ debug("Requesting none rekeying..."); ++ myproposal[PROPOSAL_ENC_ALGS_STOC] = "none"; ++ myproposal[PROPOSAL_ENC_ALGS_CTOS] = "none"; ++ kex_prop2buf(&xxx_kex->my,myproposal); ++ packet_request_rekeying(); ++ fprintf(stderr, "WARNING: ENABLED NONE CIPHER\n"); ++ } ++ else ++ { ++ /* requested NONE cipher when in a tty */ ++ debug("Cannot switch to NONE cipher with tty allocated"); ++ fprintf(stderr, "NONE cipher switch disabled when a TTY is allocated\n"); ++ } ++ } + debug("Authentication succeeded (%s).", authctxt.method->name); + } + +diff -urN sshd.c sshd.c +--- sshd.c 2009-05-02 17:37:11.000000000 +0400 ++++ sshd.c 2009-05-02 17:38:19.000000000 +0400 +@@ -143,6 +143,9 @@ + #define REEXEC_CONFIG_PASS_FD (STDERR_FILENO + 3) + #define REEXEC_MIN_FREE_FD (STDERR_FILENO + 4) + ++int myflag = 0; ++ ++ + extern char *__progname; + + /* Server configuration options. */ +@@ -422,7 +425,7 @@ + minor = PROTOCOL_MINOR_1; + } + snprintf(buf, sizeof buf, "SSH-%d.%d-%.100s%s", major, minor, +- SSH_VERSION, newline); ++ SSH_RELEASE, newline); + server_version_string = xstrdup(buf); + + /* Send our protocol version identification. */ +@@ -473,6 +476,9 @@ + } + debug("Client protocol version %d.%d; client software version %.100s", + remote_major, remote_minor, remote_version); ++ logit("SSH: Server;Ltype: Version;Remote: %s-%d;Protocol: %d.%d;Client: %.100s", ++ get_remote_ipaddr(), get_remote_port(), ++ remote_major, remote_minor, remote_version); + + compat_datafellows(remote_version); + +@@ -951,6 +957,8 @@ + int ret, listen_sock, on = 1; + struct addrinfo *ai; + char ntop[NI_MAXHOST], strport[NI_MAXSERV]; ++ int socksize; ++ int socksizelen = sizeof(int); + + for (ai = options.listen_addrs; ai; ai = ai->ai_next) { + if (ai->ai_family != AF_INET && ai->ai_family != AF_INET6) +@@ -997,6 +1005,11 @@ + + debug("Bind to port %s on %s.", strport, ntop); + ++ getsockopt(listen_sock, SOL_SOCKET, SO_RCVBUF, ++ &socksize, &socksizelen); ++ debug("Server TCP RWIN socket size: %d", socksize); ++ debug("HPN Buffer Size: %d", options.hpn_buffer_size); ++ + /* Bind the socket to the desired port. */ + if (bind(listen_sock, ai->ai_addr, ai->ai_addrlen) < 0) { + error("Bind to port %s on %s failed: %.200s.", +@@ -1847,6 +1860,9 @@ + /* Log the connection. */ + verbose("Connection from %.500s port %d", remote_ip, remote_port); + ++ /* set the HPN options for the child */ ++ channel_set_hpn(options.hpn_disabled, options.hpn_buffer_size); ++ + /* + * We don't want to listen forever unless the other side + * successfully authenticates itself. So we set up an alarm which is +@@ -2201,9 +2217,15 @@ + { + Kex *kex; + ++ myflag++; ++ debug ("MYFLAG IS %d", myflag); + if (options.ciphers != NULL) { + myproposal[PROPOSAL_ENC_ALGS_CTOS] = + myproposal[PROPOSAL_ENC_ALGS_STOC] = options.ciphers; ++ } else if (options.none_enabled == 1) { ++ debug ("WARNING: None cipher enabled"); ++ myproposal[PROPOSAL_ENC_ALGS_CTOS] = ++ myproposal[PROPOSAL_ENC_ALGS_STOC] = KEX_ENCRYPT_INCLUDE_NONE; + } + myproposal[PROPOSAL_ENC_ALGS_CTOS] = + compat_cipher_proposal(myproposal[PROPOSAL_ENC_ALGS_CTOS]); +diff -urN sshd_config sshd_config +--- sshd_config 2009-05-02 17:37:11.000000000 +0400 ++++ sshd_config 2009-05-02 17:38:19.000000000 +0400 +@@ -112,6 +112,20 @@ + # override default of no subsystems + Subsystem sftp /usr/libexec/sftp-server + ++# the following are HPN related configuration options ++# tcp receive buffer polling. disable in non autotuning kernels ++#TcpRcvBufPoll yes ++ ++# allow the use of the none cipher ++#NoneEnabled no ++ ++# disable hpn performance boosts. ++#HPNDisabled no ++ ++# buffer size for hpn to non-hpn connections ++#HPNBufferSize 2048 ++ ++ + # Example of overriding settings on a per-user basis + #Match User anoncvs + # X11Forwarding no +--- version.h.orig 2009-02-23 03:09:26.000000000 +0300 ++++ version.h 2009-05-02 18:53:20.000000000 +0400 +@@ -3,4 +3,5 @@ + #define SSH_VERSION "OpenSSH_5.2" + + #define SSH_PORTABLE "p1" +-#define SSH_RELEASE SSH_VERSION SSH_PORTABLE ++#define SSH_HPN "-hpn13v5" ++#define SSH_RELEASE SSH_VERSION SSH_PORTABLE SSH_HPN |