ChangeLog

20110515
 - (djm) OpenBSD CVS Sync
   - djm@cvs.openbsd.org 2011/05/05 05:12:08
     [mux.c]
     gracefully fall back when ControlPath is too large for a
     sockaddr_un. ok markus@ as part of a larger diff
   - dtucker@cvs.openbsd.org 2011/05/06 01:03:35
     [sshd_config]
     clarify language about overriding defaults.  bz#1892, from Petr Cerny
   - djm@cvs.openbsd.org 2011/05/06 01:09:53
     [sftp.1]
     mention that IPv6 addresses must be enclosed in square brackets;
     bz#1845
   - djm@cvs.openbsd.org 2011/05/06 02:05:41
     [sshconnect2.c]
     fix memory leak; bz#1849 ok dtucker@
   - djm@cvs.openbsd.org 2011/05/06 21:14:05
     [packet.c packet.h]
     set traffic class for IPv6 traffic as we do for IPv4 TOS;
     patch from lionel AT mamane.lu via Colin Watson in bz#1855;
     ok markus@
   - djm@cvs.openbsd.org 2011/05/06 21:18:02
     [ssh.c ssh_config.5]
     add a %L expansion (short-form of the local host name) for ControlPath;
     sync some more expansions with LocalCommand; ok markus@
   - djm@cvs.openbsd.org 2011/05/06 21:31:38
     [readconf.c ssh_config.5]
     support negated Host matching, e.g.
     
     Host *.example.org !c.example.org
        User mekmitasdigoat
     
     Will match "a.example.org", "b.example.org", but not "c.example.org"
     ok markus@
   - djm@cvs.openbsd.org 2011/05/06 21:34:32
     [clientloop.c mux.c readconf.c readconf.h ssh.c ssh_config.5]
     Add a RequestTTY ssh_config option to allow configuration-based
     control over tty allocation (like -t/-T); ok markus@
   - djm@cvs.openbsd.org 2011/05/06 21:38:58
     [ssh.c]
     fix dropping from previous diff
   - djm@cvs.openbsd.org 2011/05/06 22:20:10
     [PROTOCOL.mux]
     fix numbering; from bert.wesarg AT googlemail.com
   - jmc@cvs.openbsd.org 2011/05/07 23:19:39
     [ssh_config.5]
     - tweak previous
     - come consistency fixes
     ok djm
   - jmc@cvs.openbsd.org 2011/05/07 23:20:25
     [ssh.1]
     +.It RequestTTY
   - djm@cvs.openbsd.org 2011/05/08 12:52:01
     [PROTOCOL.mux clientloop.c clientloop.h mux.c]
     improve our behaviour when TTY allocation fails: if we are in
     RequestTTY=auto mode (the default), then do not treat at TTY
     allocation error as fatal but rather just restore the local TTY
     to cooked mode and continue. This is more graceful on devices that
     never allocate TTYs.
     
     If RequestTTY is set to "yes" or "force", then failure to allocate
     a TTY is fatal.
     
     ok markus@
   - djm@cvs.openbsd.org 2011/05/10 05:46:46
     [authfile.c]
     despam debug() logs by detecting that we are trying to load a private key
     in key_try_load_public() and returning early; ok markus@
   - djm@cvs.openbsd.org 2011/05/11 04:47:06
     [auth.c auth.h auth2-pubkey.c pathnames.h servconf.c servconf.h]
     remove support for authorized_keys2; it is a relic from the early days
     of protocol v.2 support and has been undocumented for many years;
     ok markus@
   - djm@cvs.openbsd.org 2011/05/13 00:05:36
     [authfile.c]
     warn on unexpected key type in key_parse_private_type()

20110510
 - (dtucker) [openbsd-compat/openssl-compat.{c,h}] Bug #1882: fix
   --with-ssl-engine which was broken with the change from deprecated
   SSLeay_add_all_algorithms().  ok djm

20110506
 - (dtucker) [openbsd-compat/regress/closefromtest.c] Bug #1875: add prototype
   for closefrom() in test code.  Report from Dan Wallis via Gentoo.

20110505
 - (djm) [defines.h] Move up include of netinet/ip.h for IPTOS
   definitions. From des AT des.no
 - (djm) [Makefile.in WARNING.RNG aclocal.m4 buildpkg.sh.in configure.ac]
   [entropy.c ssh-add.c ssh-agent.c ssh-keygen.c ssh-keyscan.c]
   [ssh-keysign.c ssh-pkcs11-helper.c ssh-rand-helper.8 ssh-rand-helper.c]
   [ssh.c ssh_prng_cmds.in sshd.c contrib/aix/buildbff.sh]
   [regress/README.regress] Remove ssh-rand-helper and all its
   tentacles. PRNGd seeding has been rolled into entropy.c directly.
   Thanks to tim@ for testing on affected platforms.
 - OpenBSD CVS Sync
   - djm@cvs.openbsd.org 2011/03/10 02:52:57
     [auth2-gss.c auth2.c auth.h]
     allow GSSAPI authentication to detect when a server-side failure causes
     authentication failure and don't count such failures against MaxAuthTries;
     bz#1244 from simon AT sxw.org.uk; ok markus@ before lock
   - okan@cvs.openbsd.org 2011/03/15 10:36:02
     [ssh-keyscan.c]
     use timerclear macro
     ok djm@
   - stevesk@cvs.openbsd.org 2011/03/23 15:16:22
     [ssh-keygen.1 ssh-keygen.c]
     Add -A option.  For each of the key types (rsa1, rsa, dsa and ecdsa)
     for which host keys do not exist, generate the host keys with the
     default key file path, an empty passphrase, default bits for the key
     type, and default comment.  This will be used by /etc/rc to generate
     new host keys.  Idea from deraadt.
     ok deraadt
   - stevesk@cvs.openbsd.org 2011/03/23 16:24:56
     [ssh-keygen.1]
     -q not used in /etc/rc now so remove statement.
   - stevesk@cvs.openbsd.org 2011/03/23 16:50:04
     [ssh-keygen.c]
     remove -d, documentation removed >10 years ago; ok markus
   - jmc@cvs.openbsd.org 2011/03/24 15:29:30
     [ssh-keygen.1]
     zap trailing whitespace;
   - stevesk@cvs.openbsd.org 2011/03/24 22:14:54
     [ssh-keygen.c]
     use strcasecmp() for "clear" cert permission option also; ok djm
   - stevesk@cvs.openbsd.org 2011/03/29 18:54:17
     [misc.c misc.h servconf.c]
     print ipqos friendly string for sshd -T; ok markus
     # sshd -Tf sshd_config|grep ipqos
     ipqos lowdelay throughput
   - djm@cvs.openbsd.org 2011/04/12 04:23:50
     [ssh-keygen.c]
     fix -Wshadow
   - djm@cvs.openbsd.org 2011/04/12 05:32:49
     [sshd.c]
     exit with 0 status on SIGTERM; bz#1879
   - djm@cvs.openbsd.org 2011/04/13 04:02:48
     [ssh-keygen.1]
     improve wording; bz#1861
   - djm@cvs.openbsd.org 2011/04/13 04:09:37
     [ssh-keygen.1]
     mention valid -b sizes for ECDSA keys; bz#1862
   - djm@cvs.openbsd.org 2011/04/17 22:42:42
     [PROTOCOL.mux clientloop.c clientloop.h mux.c ssh.1 ssh.c]
     allow graceful shutdown of multiplexing: request that a mux server
     removes its listener socket and refuse future multiplexing requests;
     ok markus@
   - djm@cvs.openbsd.org 2011/04/18 00:46:05
     [ssh-keygen.c]
     certificate options are supposed to be packed in lexical order of
     option name (though we don't actually enforce this at present).
     Move one up that was out of sequence
   - djm@cvs.openbsd.org 2011/05/04 21:15:29
     [authfile.c authfile.h ssh-add.c]
     allow "ssh-add - < key"; feedback and ok markus@
 - (tim) [configure.ac] Add AC_LANG_SOURCE to OPENSSH_CHECK_CFLAG_COMPILE
   so autoreconf 2.68 is happy.
 - (tim) [defines.h] Deal with platforms that do not have S_IFSOCK ok djm@

20110221
 - (dtucker) [contrib/cygwin/ssh-host-config] From Corinna: revamp of the
   Cygwin-specific service installer script ssh-host-config.  The actual
   functionality is the same, the revisited version is just more
   exact when it comes to check for problems which disallow to run
   certain aspects of the script.  So, part of this script and the also
   rearranged service helper script library "csih" is to check if all
   the tools required to run the script are available on the system.
   The new script also is more thorough to inform the user why the
   script failed.  Patch from vinschen at redhat com.

20110218
 - OpenBSD CVS Sync
   - djm@cvs.openbsd.org 2011/02/16 00:31:14
     [ssh-keysign.c]
     make hostbased auth with ECDSA keys work correctly. Based on patch
     by harvey.eneman AT oracle.com in bz#1858; ok markus@ (pre-lock)

20110206
 - (dtucker) [openbsd-compat/port-linux.c] Bug #1851: fix syntax error in
   selinux code.  Patch from Leonardo Chiquitto 
 - (dtucker) [contrib/cygwin/ssh-{host,user}-config]  Add ECDSA key
   generation and simplify.  Patch from Corinna Vinschen.

20110204
 - OpenBSD CVS Sync
   - djm@cvs.openbsd.org 2011/01/31 21:42:15
     [PROTOCOL.mux]
     cut'n'pasto; from bert.wesarg AT googlemail.com
   - djm@cvs.openbsd.org 2011/02/04 00:44:21
     [key.c]
     fix uninitialised nonce variable; reported by Mateusz Kocielski
   - djm@cvs.openbsd.org 2011/02/04 00:44:43
     [version.h]
     openssh-5.8
 - (djm) [README contrib/caldera/openssh.spec contrib/redhat/openssh.spec]
   [contrib/suse/openssh.spec] update versions in docs and spec files.
 - Release OpenSSH 5.8p1

20110128
 - (djm) [openbsd-compat/port-linux.c] Check whether SELinux is enabled
   before attempting setfscreatecon(). Check whether matchpathcon()
   succeeded before using its result. Patch from cjwatson AT debian.org;
   bz#1851

20110127
 - (tim) [config.guess config.sub] Sync with upstream.
 - (tim) [configure.ac] Consistent M4 quoting throughout, updated obsolete
   AC_TRY_COMPILE with AC_COMPILE_IFELSE, updated obsolete AC_TRY_LINK with
   AC_LINK_IFELSE, updated obsolete AC_TRY_RUN with AC_RUN_IFELSE, misc white
   space changes for consistency/readability. Makes autoconf 2.68 happy.
   "Nice work" djm

20110125
 - (djm) [configure.ac Makefile.in ssh.c openbsd-compat/port-linux.c
   openbsd-compat/port-linux.h] Move SELinux-specific code from ssh.c to
   port-linux.c to avoid compilation errors. Add -lselinux to ssh when
   building with SELinux support to avoid linking failure; report from
   amk AT spamfence.net; ok dtucker

20110122
 - (dtucker) [configure.ac openbsd-compat/openssl-compat.{c,h}] Add
   RSA_get_default_method() for the benefit of openssl versions that don't
   have it (at least openssl-engine-0.9.6b).  Found and tested by Kevin Brott,
   ok djm@.
 - OpenBSD CVS Sync
   - djm@cvs.openbsd.org 2011/01/22 09:18:53
     [version.h]
     crank to OpenSSH-5.7
 - (djm) [README contrib/caldera/openssh.spec contrib/redhat/openssh.spec]
   [contrib/suse/openssh.spec] update versions in docs and spec files.
 - (djm) Release 5.7p1

20110119
 - (tim) [contrib/caldera/openssh.spec] Use CFLAGS from Makefile instead
   of RPM so build completes. Signatures were changed to .asc since 4.1p1.
 - (djm) [configure.ac] Disable ECC on OpenSSL <0.9.8g. Releases prior to
   0.9.8 lacked it, and 0.9.8a through 0.9.8d have proven buggy in pre-
   release testing (random crashes and failure to load ECC keys).
   ok dtucker@

20110117
 - (djm) [regress/Makefile] use $TEST_SSH_KEYGEN instead of the one in
   $PATH, fix cleanup of droppings; reported by openssh AT
   roumenpetrov.info; ok dtucker@
 - (djm) [regress/agent-ptrace.sh] Fix false failure on OS X by adding
   its unique snowflake of a gdb error to the ones we look for.
 - (djm) [regress/agent-getpeereid.sh] leave stdout attached when running
   ssh-add to avoid $SUDO failures on Linux
 - (dtucker) [openbsd-compat/port-linux.c] Bug #1838: Add support for the new
   Linux OOM-killer magic values that changed in 2.6.36 kernels, with fallback
   to the old values.  Feedback from vapier at gentoo org and djm, ok djm.
 - (djm) [configure.ac regress/agent-getpeereid.sh regress/multiplex.sh]
   [regress/sftp-glob.sh regress/test-exec.sh] Rework how feature tests are
   disabled on platforms that do not support them; add a "config_defined()"
   shell function that greps for defines in config.h and use them to decide
   on feature tests.
   Convert a couple of existing grep's over config.h to use the new function
   Add a define "FILESYSTEM_NO_BACKSLASH" for filesystem that can't represent
   backslash characters in filenames, enable it for Cygwin and use it to turn
   of tests for quotes backslashes in sftp-glob.sh.
   based on discussion with vinschen AT redhat.com and dtucker@; ok dtucker@
 - (tim) [regress/agent-getpeereid.sh] shell portability fix.
 - (dtucker) [openbsd-compat/port-linux.c] Fix minor bug caught by -Werror on
   the tinderbox.
 - (dtucker) [LICENCE Makefile.in audit-bsm.c audit-linux.c audit.c audit.h
   configure.ac defines.h loginrec.c]  Bug #1402: add linux audit subsystem
   support, based on patches from Tomas Mraz and jchadima at redhat.

20110116
 - (dtucker) [Makefile.in configure.ac regress/kextype.sh] Skip sha256-based
   on configurations that don't have it.
 - OpenBSD CVS Sync
   - djm@cvs.openbsd.org 2011/01/16 11:50:05
     [clientloop.c]
     Use atomicio when flushing protocol 1 std{out,err} buffers at
     session close. This was a latent bug exposed by setting a SIGCHLD
     handler and spotted by kevin.brott AT gmail.com; ok dtucker@
   - djm@cvs.openbsd.org 2011/01/16 11:50:36
     [sshconnect.c]
     reset the SIGPIPE handler when forking to execute child processes;
     ok dtucker@
   - djm@cvs.openbsd.org 2011/01/16 12:05:59
     [clientloop.c]
     a couple more tweaks to the post-close protocol 1 stderr/stdout flush:
     now that we use atomicio(), convert them from while loops to if statements
     add test and cast to compile cleanly with -Wsigned

20110114
 - OpenBSD CVS Sync
   - djm@cvs.openbsd.org 2011/01/13 21:54:53
     [mux.c]
     correct error messages; patch from bert.wesarg AT googlemail.com
   - djm@cvs.openbsd.org 2011/01/13 21:55:25
     [PROTOCOL.mux]
     correct protocol names and add a couple of missing protocol number
     defines; patch from bert.wesarg AT googlemail.com
 - (djm) [Makefile.in] Use shell test to disable ecdsa key generating in
   host-key-force target rather than a substitution that is replaced with a
   comment so that the Makefile.in is still a syntactically valid Makefile
   (useful to run the distprep target)
 - (tim) [regress/cert-hostkey.sh] Typo. Missing $ on variable name.
 - (tim) [regress/cert-hostkey.sh] Add missing TEST_SSH_ECC guard around some
   ecdsa bits.

20110113
 - (djm) [misc.c] include time.h for nanosleep() prototype
 - (tim) [Makefile.in] test the ECC bits if we have the capability. ok djm
 - (tim) [Makefile.in configure.ac opensshd.init.in] Add support for generating
   ecdsa keys. ok djm.
 - (djm) [entropy.c] cast OPENSSL_VERSION_NUMBER to u_long to avoid
   gcc warning on platforms where it defaults to int
 - (djm) [regress/Makefile] add a few more generated files to the clean
   target
 - (djm) [myproposal.h] Fix reversed OPENSSL_VERSION_NUMBER test and bad
   #define that was causing diffie-hellman-group-exchange-sha256 to be
   incorrectly disabled
 - (djm) [regress/kextype.sh] Testing diffie-hellman-group-exchange-sha256
   should not depend on ECC support

20110112
 - OpenBSD CVS Sync
   - nicm@cvs.openbsd.org 2010/10/08 21:48:42
     [openbsd-compat/glob.c]
     Extend GLOB_LIMIT to cover readdir and stat and bump the malloc limit
     from ARG_MAX to 64K.
     Fixes glob-using programs (notably ftp) able to be triggered to hit
     resource limits.
     Idea from a similar NetBSD change, original problem reported by jasper@.
     ok millert tedu jasper
   - djm@cvs.openbsd.org 2011/01/12 01:53:14
     avoid some integer overflows mostly with GLOB_APPEND and GLOB_DOOFFS
     and sanity check arguments (these will be unnecessary when we switch
     struct glob members from being type into to size_t in the future);
     "looks ok" tedu@ feedback guenther@
 - (djm) [configure.ac] Turn on -Wno-unused-result for gcc >= 4.4 to avoid
   silly warnings on write() calls we don't care succeed or not.
 - (djm) [configure.ac] Fix broken test for gcc >= 4.4 with per-compiler
   flag tests that don't depend on gcc version at all; suggested by and
   ok dtucker@

20110111
 - (tim) [regress/host-expand.sh] Fix for building outside of read only
   source tree.
 - (djm) [platform.c] Some missing includes that show up under -Werror
 - OpenBSD CVS Sync
   - djm@cvs.openbsd.org 2011/01/08 10:51:51
     [clientloop.c]
     use host and not options.hostname, as the latter may have unescaped
     substitution characters
   - djm@cvs.openbsd.org 2011/01/11 06:06:09
     [sshlogin.c]
     fd leak on error paths; from zinovik@
     NB. Id sync only; we use loginrec.c that was also audited and fixed
     recently
   - djm@cvs.openbsd.org 2011/01/11 06:13:10
     [clientloop.c ssh-keygen.c sshd.c]
     some unsigned long long casts that make things a bit easier for
     portable without resorting to dropping PRIu64 formats everywhere

20110109
 - (djm) [Makefile.in] list ssh_host_ecdsa key in PATHSUBS; spotted by
   openssh AT roumenpetrov.info

20110108
 - (djm) [regress/keytype.sh] s/echo -n/echon/ to repair failing regress
   test on OSX and others. Reported by imorgan AT nas.nasa.gov

20110107
 - (djm) [regress/cert-hostkey.sh regress/cert-userkey.sh] fix shell test
   for no-ECC case. Patch from cristian.ionescu-idbohrn AT axis.com
   - djm@cvs.openbsd.org 2011/01/06 22:23:53
     [ssh.c]
     unbreak %n expansion in LocalCommand; patch from bert.wesarg AT
     googlemail.com; ok markus@
   - djm@cvs.openbsd.org 2011/01/06 22:23:02
     [clientloop.c]
     when exiting due to ServerAliveTimeout, mention the hostname that caused
     it (useful with backgrounded controlmaster)
   - djm@cvs.openbsd.org 2011/01/06 22:46:21
     [regress/Makefile regress/host-expand.sh]
     regress test for LocalCommand %n expansion from bert.wesarg AT
     googlemail.com; ok markus@
   - djm@cvs.openbsd.org 2011/01/06 23:01:35
     [sshconnect.c]
     reset SIGCHLD handler to SIG_DFL when execuring LocalCommand;
     ok markus@

20110106
 - (djm) OpenBSD CVS Sync
   - markus@cvs.openbsd.org 2010/12/08 22:46:03
     [scp.1 scp.c]
     add a new -3 option to scp: Copies between two remote hosts are
     transferred through the local host.  Without this option the data
     is copied directly between the two remote hosts. ok djm@ (bugzilla #1837)
   - jmc@cvs.openbsd.org 2010/12/09 14:13:33
     [scp.1 scp.c]
     scp.1: grammer fix
     scp.c: add -3 to usage()
   - markus@cvs.openbsd.org 2010/12/14 11:59:06
     [sshconnect.c]
     don't mention key type in key-changed-warning, since we also print
     this warning if a new key type appears. ok djm@
   - djm@cvs.openbsd.org 2010/12/15 00:49:27
     [readpass.c]
     fix ControlMaster=ask regression
     reset SIGCHLD handler before fork (and restore it after) so we don't miss
     the the askpass child's exit status. Correct test for exit status/signal to
     account for waitpid() failure; with claudio@ ok claudio@ markus@
   - djm@cvs.openbsd.org 2010/12/24 21:41:48
     [auth-options.c]
     don't send the actual forced command in a debug message; ok markus deraadt
   - otto@cvs.openbsd.org 2011/01/04 20:44:13
     [ssh-keyscan.c]
     handle ecdsa-sha2 with various key lengths; hint and ok djm@

20110104
 - (djm) [configure.ac Makefile.in] Use mandoc as preferred manpage
   formatter if it is present, followed by nroff and groff respectively.
   Fixes distprep target on OpenBSD (which has bumped groff/nroff to ports
   in favour of mandoc). feedback and ok tim

20110103
 - (djm) [Makefile.in] revert local hack I didn't intend to commit

20110102
 - (djm) [loginrec.c] Fix some fd leaks on error paths. ok dtucker
 - (djm) [configure.ac] Check whether libdes is needed when building
   with Heimdal krb5 support. On OpenBSD this library no longer exists,
   so linking it unconditionally causes a build failure; ok dtucker

20101226
 - (dtucker) OpenBSD CVS Sync
   - djm@cvs.openbsd.org 2010/12/08 04:02:47
     [ssh_config.5 sshd_config.5]
     explain that IPQoS arguments are separated by whitespace; iirc requested
     by jmc@ a while back

20101205
 - (dtucker) openbsd-compat/openssl-compat.c] remove sleep leftover from
   debugging.  Spotted by djm.
 - (dtucker) OpenBSD CVS Sync
   - djm@cvs.openbsd.org 2010/12/03 23:49:26
     [schnorr.c]
     check that g^x^q === 1 mod p; recommended by JPAKE author Feng Hao
     (this code is still disabled, but apprently people are treating it as
     a reference implementation)
   - djm@cvs.openbsd.org 2010/12/03 23:55:27
     [auth-rsa.c]
     move check for revoked keys to run earlier (in auth_rsa_key_allowed)
     bz#1829; patch from ldv AT altlinux.org; ok markus@
   - djm@cvs.openbsd.org 2010/12/04 00:18:01
     [sftp-server.c sftp.1 sftp-client.h sftp.c PROTOCOL sftp-client.c]
     add a protocol extension to support a hard link operation. It is
     available through the "ln" command in the client. The old "ln"
     behaviour of creating a symlink is available using its "-s" option
     or through the preexisting "symlink" command; based on a patch from
     miklos AT szeredi.hu in bz#1555; ok markus@
   - djm@cvs.openbsd.org 2010/12/04 13:31:37
     [hostfile.c]
     fix fd leak; spotted and ok dtucker
   - djm@cvs.openbsd.org 2010/12/04 00:21:19
     [regress/sftp-cmds.sh]
     adjust for hard-link support
 - (dtucker) [regress/Makefile] Id sync.

20101204
 - (djm) [openbsd-compat/bindresvport.c] Use arc4random_uniform(range)
   instead of (arc4random() % range)
 - (dtucker) [configure.ac moduli.c openbsd-compat/openssl-compat.{c,h}]  Add
   shims for the new, non-deprecated OpenSSL key generation functions for
   platforms that don't have the new interfaces.

20101201
 - OpenBSD CVS Sync
   - deraadt@cvs.openbsd.org 2010/11/20 05:12:38
     [auth2-pubkey.c]
     clean up cases of ;;
   - djm@cvs.openbsd.org 2010/11/21 01:01:13
     [clientloop.c misc.c misc.h ssh-agent.1 ssh-agent.c]
     honour $TMPDIR for client xauth and ssh-agent temporary directories;
     feedback and ok markus@
   - djm@cvs.openbsd.org 2010/11/21 10:57:07
     [authfile.c]
     Refactor internals of private key loading and saving to work on memory
     buffers rather than directly on files. This will make a few things
     easier to do in the future; ok markus@
   - djm@cvs.openbsd.org 2010/11/23 02:35:50
     [auth.c]
     use strict_modes already passed as function argument over referencing
     global options.strict_modes
   - djm@cvs.openbsd.org 2010/11/23 23:57:24
     [clientloop.c]
     avoid NULL deref on receiving a channel request on an unknown or invalid
     channel; report bz#1842 from jchadima AT redhat.com; ok dtucker@
   - djm@cvs.openbsd.org 2010/11/24 01:24:14
     [channels.c]
     remove a debug() that pollutes stderr on client connecting to a server
     in debug mode (channel_close_fds is called transitively from the session
     code post-fork); bz#1719, ok dtucker
   - djm@cvs.openbsd.org 2010/11/25 04:10:09
     [session.c]
     replace close() loop for fds 3->64 with closefrom();
     ok markus deraadt dtucker
   - djm@cvs.openbsd.org 2010/11/26 05:52:49
     [scp.c]
     Pass through ssh command-line flags and options when doing remote-remote
     transfers, e.g. to enable agent forwarding which is particularly useful
     in this case; bz#1837 ok dtucker@
   - markus@cvs.openbsd.org 2010/11/29 18:57:04
     [authfile.c]
     correctly load comment for encrypted rsa1 keys;
     report/fix Joachim Schipper; ok djm@
   - djm@cvs.openbsd.org 2010/11/29 23:45:51
     [auth.c hostfile.c hostfile.h ssh.c ssh_config.5 sshconnect.c]
     [sshconnect.h sshconnect2.c]
     automatically order the hostkeys requested by the client based on
     which hostkeys are already recorded in known_hosts. This avoids
     hostkey warnings when connecting to servers with new ECDSA keys
     that are preferred by default; with markus@

20101124
 - (dtucker) [platform.c session.c] Move the getluid call out of session.c and
   into the platform-specific code  Only affects SCO, tested by and ok tim@.
 - (djm) [loginrec.c] Relax permission requirement on btmp logs to allow
   group read/write. ok dtucker@
 - (dtucker) [packet.c] Remove redundant local declaration of "int tos".
 - (djm) [defines.h] Add IP DSCP defines

20101122
 - (dtucker) Bug #1840: fix warning when configuring --with-ssl-engine, patch
   from vapier at gentoo org.

20101120
 - OpenBSD CVS Sync
   - djm@cvs.openbsd.org 2010/11/05 02:46:47
     [packet.c]
     whitespace KNF
   - djm@cvs.openbsd.org 2010/11/10 01:33:07
     [kexdhc.c kexdhs.c kexgexc.c kexgexs.c key.c moduli.c]
     use only libcrypto APIs that are retained with OPENSSL_NO_DEPRECATED.
     these have been around for years by this time. ok markus
   - djm@cvs.openbsd.org 2010/11/13 23:27:51
     [clientloop.c misc.c misc.h packet.c packet.h readconf.c readconf.h]
     [servconf.c servconf.h session.c ssh.c ssh_config.5 sshd_config.5]
     allow ssh and sshd to set arbitrary TOS/DSCP/QoS values instead of
     hardcoding lowdelay/throughput.
     
     bz#1733 patch from philipp AT redfish-solutions.com; ok markus@ deraadt@
   - jmc@cvs.openbsd.org 2010/11/15 07:40:14
     [ssh_config.5]
     libary -> library;
   - jmc@cvs.openbsd.org 2010/11/18 15:01:00
     [scp.1 sftp.1 ssh.1 sshd_config.5]
     add IPQoS to the various -o lists, and zap some trailing whitespace;

20101111
 - (djm) [servconf.c ssh-add.c ssh-keygen.c] don't look for ECDSA keys on
   platforms that don't support ECC. Fixes some spurious warnings reported
   by tim@

20101109
 - (tim) [regress/kextype.sh] Not all platforms have time in /usr/bin.
   Feedback from dtucker@
 - (tim) [configure.ac openbsd-compat/bsd-misc.h openbsd-compat/bsd-misc.c] Add
   support for platforms missing isblank(). ok djm@

20101108
 - (tim) [regress/Makefile] Fixes to allow building/testing outside source
   tree.
 - (tim) [regress/kextype.sh] Shell portability fix.

20101107
 - (dtucker) [platform.c] includes.h instead of defines.h so that we get
   the correct typedefs.

20101105
 - (djm) [loginrec.c loginrec.h] Use correct uid_t/pid_t types instead of
   int. Should fix bz#1817 cleanly; ok dtucker@
 - OpenBSD CVS Sync
   - djm@cvs.openbsd.org 2010/09/22 12:26:05
     [regress/Makefile regress/kextype.sh]
     regress test for each of the key exchange algorithms that we support
   - djm@cvs.openbsd.org 2010/10/28 11:22:09
     [authfile.c key.c key.h ssh-keygen.c]
     fix a possible NULL deref on loading a corrupt ECDH key
     
     store ECDH group information in private keys files as "named groups"
     rather than as a set of explicit group parameters (by setting
     the OPENSSL_EC_NAMED_CURVE flag). This makes for shorter key files and
     retrieves the group's OpenSSL NID that we need for various things.
   - jmc@cvs.openbsd.org 2010/10/28 18:33:28
     [scp.1 ssh-add.1 ssh-keygen.1 ssh.1 ssh_config.5 sshd.8 sshd_config.5]
     knock out some "-*- nroff -*-" lines;
   - djm@cvs.openbsd.org 2010/11/04 02:45:34
     [sftp-server.c]
     umask should be parsed as octal. reported by candland AT xmission.com;
     ok markus@
 - (dtucker) [configure.ac platform.{c,h} session.c
   openbsd-compat/port-solaris.{c,h}] Bug #1824: Add Solaris Project support.
   Patch from cory.erickson at csu mnscu edu with a bit of rework from me.
   ok djm@
 - (dtucker) [platform.c platform.h session.c] Add a platform hook to run
   after the user's groups are established and move the selinux calls into it.
 - (dtucker) [platform.c session.c] Move the AIX setpcred+chroot hack into
   platform.c
 - (dtucker) [platform.c session.c] Move the BSDI setpgrp into platform.c.
 - (dtucker) [platform.c] Only call setpgrp on BSDI if running as root to
   retain previous behavior.
 - (dtucker) [platform.c session.c] Move the PAM credential establishment for
   the LOGIN_CAP case into platform.c.
 - (dtucker) platform.c session.c] Move the USE_LIBIAF fragment into
   platform.c
 - (dtucker) [platform.c session.c] Move aix_usrinfo frament into platform.c.
 - (dtucker) [platform.c session.c] Move irix setusercontext fragment into
   platform.c.
 - (dtucker) [platform.c session.c] Move PAM credential establishment for the
   non-LOGIN_CAP case into platform.c.
 - (dtucker) [platform.c platform.h session.c] Move the Cygwin special-case
   check into platform.c
 - (dtucker) [regress/keytype.sh] Import new test.
 - (dtucker) [Makefile configure.ac regress/Makefile regress/keytype.sh]
   Import recent changes to regress/Makefile, pass a flag to enable ECC tests
   from configure through to regress/Makefile and use it in the tests.
 - (dtucker) [regress/kextype.sh] Add missing "test".
 - (dtucker) [regress/kextype.sh] Make sha256 test depend on ECC.  This is not
   strictly correct since while ECC requires sha256 the reverse is not true
   however it does prevent spurious test failures.
 - (dtucker) [platform.c] Need servconf.h and extern options.

20101025
 - (tim) [openbsd-compat/glob.h] Remove sys/cdefs.h include that came with
   1.12 to unbreak Solaris build.
   ok djm@
 - (dtucker) [defines.h] Use SIZE_T_MAX for SIZE_MAX for platforms that have a
   native one.

20101024
 - (dtucker) [includes.h] Add missing ifdef GLOB_HAS_GL_STATV to fix build.
 - (dtucker) [regress/cert-hostkey.sh] Disable ECC-based tests on platforms
   which don't have ECC support in libcrypto.
 - (dtucker) [regress/cert-userkey.sh] Disable ECC-based tests on platforms
   which don't have ECC support in libcrypto.
 - (dtucker) [defines.h] Add SIZE_MAX for the benefit of platforms that don't
   have it.
 - (dtucker) OpenBSD CVS Sync
   - sthen@cvs.openbsd.org 2010/10/23 22:06:12
     [sftp.c]
     escape '[' in filename tab-completion; fix a type while there.
     ok djm@

20101021
 - OpenBSD CVS Sync
   - dtucker@cvs.openbsd.org 2010/10/12 02:22:24
     [mux.c]
     Typo in confirmation message.  bz#1827, patch from imorgan at
     nas nasa gov
   - djm@cvs.openbsd.org 2010/08/31 12:24:09
     [regress/cert-hostkey.sh regress/cert-userkey.sh]
     tests for ECDSA certificates

20101011
 - (djm) [canohost.c] Zero a4 instead of addr to better match type.
   bz#1825, reported by foo AT mailinator.com
 - (djm) [sshconnect.c] Need signal.h for prototype for kill(2)

20101011
 - (djm) [configure.ac] Use = instead of == in shell tests. Patch from
   dr AT vasco.com

20101007
 - (djm) [ssh-agent.c] Fix type for curve name.
 - (djm) OpenBSD CVS Sync
   - matthew@cvs.openbsd.org 2010/09/24 13:33:00
     [misc.c misc.h configure.ac openbsd-compat/openbsd-compat.h]
     [openbsd-compat/timingsafe_bcmp.c]
     Add timingsafe_bcmp(3) to libc, mention that it's already in the
     kernel in kern(9), and remove it from OpenSSH.
     ok deraadt@, djm@
     NB. re-added under openbsd-compat/ for portable OpenSSH
   - djm@cvs.openbsd.org 2010/09/25 09:30:16
     [sftp.c configure.ac openbsd-compat/glob.c openbsd-compat/glob.h]
     make use of new glob(3) GLOB_KEEPSTAT extension to save extra server
     rountrips to fetch per-file stat(2) information.
     NB. update openbsd-compat/ glob(3) implementation from OpenBSD libc to
     match.
   - djm@cvs.openbsd.org 2010/09/26 22:26:33
     [sftp.c]
     when performing an "ls" in columnated (short) mode, only call
     ioctl(TIOCGWINSZ) once to get the window width instead of per-
     filename
   - djm@cvs.openbsd.org 2010/09/30 11:04:51
     [servconf.c]
     prevent free() of string in .rodata when overriding AuthorizedKeys in
     a Match block; patch from rein AT basefarm.no
   - djm@cvs.openbsd.org 2010/10/01 23:05:32
     [cipher-3des1.c cipher-bf1.c cipher-ctr.c openbsd-compat/openssl-compat.h]
     adapt to API changes in openssl-1.0.0a
     NB. contains compat code to select correct API for older OpenSSL
   - djm@cvs.openbsd.org 2010/10/05 05:13:18
     [sftp.c sshconnect.c]
     use default shell /bin/sh if $SHELL is ""; ok markus@
   - djm@cvs.openbsd.org 2010/10/06 06:39:28
     [clientloop.c ssh.c sshconnect.c sshconnect.h]
     kill proxy command on fatal() (we already kill it on clean exit);
     ok markus@
   - djm@cvs.openbsd.org 2010/10/06 21:10:21
     [sshconnect.c]
     swapped args to kill(2)
 - (djm) [openbsd-compat/glob.c] restore ARG_MAX compat code.
 - (djm) [cipher-acss.c] Add missing header.
 - (djm) [openbsd-compat/Makefile.in] Actually link timingsafe_bcmp

20100924
 - (djm) OpenBSD CVS Sync
   - naddy@cvs.openbsd.org 2010/09/10 15:19:29
     [ssh-keygen.1]
     * mention ECDSA in more places
     * less repetition in FILES section
     * SSHv1 keys are still encrypted with 3DES
     help and ok jmc@
   - djm@cvs.openbsd.org 2010/09/11 21:44:20
     [ssh.1]
     mention RFC 5656 for ECC stuff
   - jmc@cvs.openbsd.org 2010/09/19 21:30:05
     [sftp.1]
     more wacky macro fixing;
   - djm@cvs.openbsd.org 2010/09/20 04:41:47
     [ssh.c]
     install a SIGCHLD handler to reap expiried child process; ok markus@
   - djm@cvs.openbsd.org 2010/09/20 04:50:53
     [jpake.c schnorr.c]
     check that received values are smaller than the group size in the
     disabled and unfinished J-PAKE code.
     avoids catastrophic security failure found by Sebastien Martini
   - djm@cvs.openbsd.org 2010/09/20 04:54:07
     [jpake.c]
     missing #include
   - djm@cvs.openbsd.org 2010/09/20 07:19:27
     [mux.c]
     "atomically" create the listening mux socket by binding it on a temorary
     name and then linking it into position after listen() has succeeded.
     this allows the mux clients to determine that the server socket is
     either ready or stale without races. stale server sockets are now
     automatically removed
     ok deraadt
   - djm@cvs.openbsd.org 2010/09/22 05:01:30
     [kex.c kex.h kexecdh.c kexecdhc.c kexecdhs.c readconf.c readconf.h]
     [servconf.c servconf.h ssh_config.5 sshconnect2.c sshd.c sshd_config.5]
     add a KexAlgorithms knob to the client and server configuration to allow
     selection of which key exchange methods are used by ssh(1) and sshd(8)
     and their order of preference.
     ok markus@
   - jmc@cvs.openbsd.org 2010/09/22 08:30:08
     [ssh.1 ssh_config.5]
     ssh.1: add kexalgorithms to the -o list
     ssh_config.5: format the kexalgorithms in a more consistent
     (prettier!) way
     ok djm
   - djm@cvs.openbsd.org 2010/09/22 22:58:51
     [atomicio.c atomicio.h misc.c misc.h scp.c sftp-client.c]
     [sftp-client.h sftp.1 sftp.c]
     add an option per-read/write callback to atomicio

     factor out bandwidth limiting code from scp(1) into a generic bandwidth
     limiter that can be attached using the atomicio callback mechanism

     add a bandwidth limit option to sftp(1) using the above
     "very nice" markus@
   - jmc@cvs.openbsd.org 2010/09/23 13:34:43
     [sftp.c]
     add [-l limit] to usage();
   - jmc@cvs.openbsd.org 2010/09/23 13:36:46
     [scp.1 sftp.1]
     add KexAlgorithms to the -o list;

20100910
 - (dtucker) [openbsd-compat/port-linux.c] Check is_selinux_enabled for exact
   return code since it can apparently return -1 under some conditions.  From
   openssh bugs werbittewas de, ok djm@
 - OpenBSD CVS Sync
   - djm@cvs.openbsd.org 2010/08/31 12:33:38
     [ssh-add.c ssh-agent.c ssh-keygen.c ssh-keysign.c ssh.c sshd.c]
     reintroduce commit from tedu@, which I pulled out for release
     engineering:
       OpenSSL_add_all_algorithms is the name of the function we have a
       man page for, so use that.  ok djm
   - jmc@cvs.openbsd.org 2010/08/31 17:40:54
     [ssh-agent.1]
     fix some macro abuse;
   - jmc@cvs.openbsd.org 2010/08/31 21:14:58
     [ssh.1]
     small text tweak to accommodate previous;
   - naddy@cvs.openbsd.org 2010/09/01 15:21:35
     [servconf.c]
     pick up ECDSA host key by default; ok djm@
   - markus@cvs.openbsd.org 2010/09/02 16:07:25
     [ssh-keygen.c]
     permit -b 256, 384 or 521 as key size for ECDSA; ok djm@
   - markus@cvs.openbsd.org 2010/09/02 16:08:39
     [ssh.c]
     unbreak ControlPersist=yes for ControlMaster=yes; ok djm@
   - naddy@cvs.openbsd.org 2010/09/02 17:21:50
     [ssh-keygen.c]
     Switch ECDSA default key size to 256 bits, which according to RFC5656
     should still be better than our current RSA-2048 default.
     ok djm@, markus@
   - jmc@cvs.openbsd.org 2010/09/03 11:09:29
     [scp.1]
     add an EXIT STATUS section for /usr/bin;
   - jmc@cvs.openbsd.org 2010/09/04 09:38:34
     [ssh-add.1 ssh.1]
     two more EXIT STATUS sections;
   - naddy@cvs.openbsd.org 2010/09/06 17:10:19
     [sshd_config]
     add ssh_host_ecdsa_key to /etc; from Mattieu Baptiste
     <mattieu.b@gmail.com>
     ok deraadt@
   - djm@cvs.openbsd.org 2010/09/08 03:54:36
     [authfile.c]
     typo
   - deraadt@cvs.openbsd.org 2010/09/08 04:13:31
     [compress.c]
     work around name-space collisions some buggy compilers (looking at you
     gcc, at least in earlier versions, but this does not forgive your current
     transgressions) seen between zlib and openssl
     ok djm
   - djm@cvs.openbsd.org 2010/09/09 10:45:45
     [kex.c kex.h kexecdh.c key.c key.h monitor.c ssh-ecdsa.c]
     ECDH/ECDSA compliance fix: these methods vary the hash function they use
     (SHA256/384/512) depending on the length of the curve in use. The previous
     code incorrectly used SHA256 in all cases.
     
     This fix will cause authentication failure when using 384 or 521-bit curve
     keys if one peer hasn't been upgraded and the other has. (256-bit curve
     keys work ok). In particular you may need to specify HostkeyAlgorithms
     when connecting to a server that has not been upgraded from an upgraded
     client.
     
     ok naddy@
 - (djm) [authfd.c authfile.c bufec.c buffer.h configure.ac kex.h kexecdh.c]
   [kexecdhc.c kexecdhs.c key.c key.h myproposal.h packet.c readconf.c]
   [ssh-agent.c ssh-ecdsa.c ssh-keygen.c ssh.c] Disable ECDH and ECDSA on
   platforms that don't have the requisite OpenSSL support. ok dtucker@
 - (dtucker) [kex.h key.c packet.h ssh-agent.c ssh.c] A few more ECC ifdefs
   for missing headers and compiler warnings.

20100831
 - OpenBSD CVS Sync
   - jmc@cvs.openbsd.org 2010/08/08 19:36:30
     [ssh-keysign.8 ssh.1 sshd.8]
     use the same template for all FILES sections; i.e. -compact/.Pp where we
     have multiple items, and .Pa for path names;
   - tedu@cvs.openbsd.org 2010/08/12 23:34:39
     [ssh-add.c ssh-agent.c ssh-keygen.c ssh-keysign.c ssh.c sshd.c]
     OpenSSL_add_all_algorithms is the name of the function we have a man page
     for, so use that.  ok djm
   - djm@cvs.openbsd.org 2010/08/16 04:06:06
     [ssh-add.c ssh-agent.c ssh-keygen.c ssh-keysign.c ssh.c sshd.c]
     backout previous temporarily; discussed with deraadt@
   - djm@cvs.openbsd.org 2010/08/31 09:58:37
     [auth-options.c auth1.c auth2.c bufaux.c buffer.h kex.c key.c packet.c]
     [packet.h ssh-dss.c ssh-rsa.c]
     Add buffer_get_cstring() and related functions that verify that the
     string extracted from the buffer contains no embedded \0 characters*
     This prevents random (possibly malicious) crap from being appended to
     strings where it would not be noticed if the string is used with
     a string(3) function.
     
     Use the new API in a few sensitive places.
     
     * actually, we allow a single one at the end of the string for now because
     we don't know how many deployed implementations get this wrong, but don't
     count on this to remain indefinitely.
   - djm@cvs.openbsd.org 2010/08/31 11:54:45
     [PROTOCOL PROTOCOL.agent PROTOCOL.certkeys auth2-jpake.c authfd.c]
     [authfile.c buffer.h dns.c kex.c kex.h key.c key.h monitor.c]
     [monitor_wrap.c myproposal.h packet.c packet.h pathnames.h readconf.c]
     [ssh-add.1 ssh-add.c ssh-agent.1 ssh-agent.c ssh-keygen.1 ssh-keygen.c]
     [ssh-keyscan.1 ssh-keyscan.c ssh-keysign.8 ssh.1 ssh.c ssh2.h]
     [ssh_config.5 sshconnect.c sshconnect2.c sshd.8 sshd.c sshd_config.5]
     [uuencode.c uuencode.h bufec.c kexecdh.c kexecdhc.c kexecdhs.c ssh-ecdsa.c]
     Implement Elliptic Curve Cryptography modes for key exchange (ECDH) and
     host/user keys (ECDSA) as specified by RFC5656. ECDH and ECDSA offer
     better performance than plain DH and DSA at the same equivalent symmetric
     key length, as well as much shorter keys.
     
     Only the mandatory sections of RFC5656 are implemented, specifically the
     three REQUIRED curves nistp256, nistp384 and nistp521 and only ECDH and
     ECDSA. Point compression (optional in RFC5656 is NOT implemented).
     
     Certificate host and user keys using the new ECDSA key types are supported.
     
     Note that this code has not been tested for interoperability and may be
     subject to change.
     
     feedback and ok markus@
 - (djm) [Makefile.in] Add new ECC files
 - (djm) [bufec.c kexecdh.c kexecdhc.c kexecdhs.c ssh-ecdsa.c] include
   includes.h

20100827
 - (dtucker) [contrib/redhat/sshd.init] Bug #1810: initlog is deprecated,
   remove.  Patch from martynas at venck us 

20100823
 - (djm) Release OpenSSH-5.6p1

20100816
 - (dtucker) [configure.ac openbsd-compat/Makefile.in
   openbsd-compat/openbsd-compat.h openbsd-compat/strptime.c] Add strptime to
   the compat library which helps on platforms like old IRIX.  Based on work
   by djm, tested by Tom Christensen.
 - OpenBSD CVS Sync
   - djm@cvs.openbsd.org 2010/08/12 21:49:44
     [ssh.c]
     close any extra file descriptors inherited from parent at start and
     reopen stdin/stdout to /dev/null when forking for ControlPersist.
     
     prevents tools that fork and run a captive ssh for communication from
     failing to exit when the ssh completes while they wait for these fds to
     close. The inherited fds may persist arbitrarily long if a background
     mux master has been started by ControlPersist. cvs and scp were effected
     by this.
     
     "please commit" markus@
 - (djm) [regress/README.regress] typo

20100812
 - (tim) [regress/login-timeout.sh regress/reconfigure.sh regress/reexec.sh
   regress/test-exec.sh] Under certain conditions when testing with sudo
   tests would fail because the pidfile could not be read by a regular user.
   "cat: cannot open ...../regress/pidfile: Permission denied (error 13)"
   Make sure cat is run by $SUDO.  no objection from me. djm@
 - (tim) [auth.c] add cast to quiet compiler. Change only affects SVR5 systems.

20100809
 - (djm) bz#1561: don't bother setting IFF_UP on tun(4) device if it is
   already set. Makes FreeBSD user openable tunnels useful; patch from
   richard.burakowski+ossh AT mrburak.net, ok dtucker@
 - (dtucker) bug #1530: strip trailing ":" from hostname in ssh-copy-id.
   based in part on a patch from Colin Watson, ok djm@

20100809
 - OpenBSD CVS Sync
   - djm@cvs.openbsd.org 2010/08/08 16:26:42
     [version.h]
     crank to 5.6
 - (djm) [README contrib/caldera/openssh.spec contrib/redhat/openssh.spec]
   [contrib/suse/openssh.spec] Crank version numbers

20100805
 - OpenBSD CVS Sync
   - djm@cvs.openbsd.org 2010/08/04 05:37:01
     [ssh.1 ssh_config.5 sshd.8]
     Remove mentions of weird "addr/port" alternate address format for IPv6
     addresses combinations. It hasn't worked for ages and we have supported
     the more commen "[addr]:port" format for a long time. ok jmc@ markus@
   - djm@cvs.openbsd.org 2010/08/04 05:40:39
     [PROTOCOL.certkeys ssh-keygen.c]
     tighten the rules for certificate encoding by requiring that options
     appear in lexical order and make our ssh-keygen comply. ok markus@
   - djm@cvs.openbsd.org 2010/08/04 05:42:47
     [auth.c auth2-hostbased.c authfile.c authfile.h ssh-keysign.8]
     [ssh-keysign.c ssh.c]
     enable certificates for hostbased authentication, from Iain Morgan;
     "looks ok" markus@
   - djm@cvs.openbsd.org 2010/08/04 05:49:22
     [authfile.c]
     commited the wrong version of the hostbased certificate diff; this
     version replaces some strlc{py,at} verbosity with xasprintf() at
     the request of markus@
   - djm@cvs.openbsd.org 2010/08/04 06:07:11
     [ssh-keygen.1 ssh-keygen.c]
     Support CA keys in PKCS#11 tokens; feedback and ok markus@
   - djm@cvs.openbsd.org 2010/08/04 06:08:40
     [ssh-keysign.c]
     clean for -Wuninitialized (Id sync only; portable had this change)
   - djm@cvs.openbsd.org 2010/08/05 13:08:42
     [channels.c]
     Fix a trio of bugs in the local/remote window calculation for datagram
     data channels (i.e. TunnelForward):
     
     Calculate local_consumed correctly in channel_handle_wfd() by measuring
     the delta to buffer_len(c->output) from when we start to when we finish.
     The proximal problem here is that the output_filter we use in portable
     modified the length of the dequeued datagram (to futz with the headers
     for !OpenBSD).
     
     In channel_output_poll(), don't enqueue datagrams that won't fit in the
     peer's advertised packet size (highly unlikely to ever occur) or which
     won't fit in the peer's remaining window (more likely).
     
     In channel_input_data(), account for the 4-byte string header in
     datagram packets that we accept from the peer and enqueue in c->output.
     
     report, analysis and testing 2/3 cases from wierbows AT us.ibm.com;
     "looks good" markus@

20100803
 - (dtucker) [monitor.c] Bug #1795: Initialize the values to be returned from
   PAM to sane values in case the PAM method doesn't write to them.  Spotted by
   Bitman Zhou, ok djm@.
 - OpenBSD CVS Sync
   - djm@cvs.openbsd.org 2010/07/16 04:45:30
     [ssh-keygen.c]
     avoid bogus compiler warning
   - djm@cvs.openbsd.org 2010/07/16 14:07:35
     [ssh-rsa.c]
     more timing paranoia - compare all parts of the expected decrypted
     data before returning. AFAIK not exploitable in the SSH protocol.
     "groovy" deraadt@
   - djm@cvs.openbsd.org 2010/07/19 03:16:33
     [sftp-client.c]
     bz#1797: fix swapped args in upload_dir_internal(), breaking recursive
     upload depth checks and causing verbose printing of transfers to always
     be turned on; patch from imorgan AT nas.nasa.gov
   - djm@cvs.openbsd.org 2010/07/19 09:15:12
     [clientloop.c readconf.c readconf.h ssh.c ssh_config.5]
     add a "ControlPersist" option that automatically starts a background
     ssh(1) multiplex master when connecting. This connection can stay alive
     indefinitely, or can be set to automatically close after a user-specified
     duration of inactivity. bz#1330 - patch by dwmw2 AT infradead.org, but
     further hacked on by wmertens AT cisco.com, apb AT cequrux.com,
     martin-mindrot-bugzilla AT earth.li and myself; "looks ok" markus@
   - djm@cvs.openbsd.org 2010/07/21 02:10:58
     [misc.c]
     sync timingsafe_bcmp() with the one dempsky@ committed to sys/lib/libkern
   - dtucker@cvs.openbsd.org 2010/07/23 08:49:25
     [ssh.1]
     Ciphers is documented in ssh_config(5) these days

20100819
 - (dtucker) [contrib/ssh-copy-ud.1] Bug #1786: update ssh-copy-id.1 with more
   details about its behaviour WRT existing directories.  Patch from
   asguthrie at gmail com, ok djm.

20100716
 - (djm) OpenBSD CVS Sync
   - djm@cvs.openbsd.org 2010/07/02 04:32:44
     [misc.c]
     unbreak strdelim() skipping past quoted strings, e.g.
     AllowUsers "blah blah" blah
     was broken; report and fix in bz#1757 from bitman.zhou AT centrify.com
     ok dtucker;
   - djm@cvs.openbsd.org 2010/07/12 22:38:52
     [ssh.c]
     Make ExitOnForwardFailure work with fork-after-authentication ("ssh -f")
     for protocol 2. ok markus@
   - djm@cvs.openbsd.org 2010/07/12 22:41:13
     [ssh.c ssh_config.5]
     expand %h to the hostname in ssh_config Hostname options. While this
     sounds useless, it is actually handy for working with unqualified
     hostnames:
     
     Host *.*
        Hostname %h
     Host *
        Hostname %h.example.org
     
     "I like it" markus@
   - djm@cvs.openbsd.org 2010/07/13 11:52:06
     [auth-rsa.c channels.c jpake.c key.c misc.c misc.h monitor.c]
     [packet.c ssh-rsa.c]
     implement a timing_safe_cmp() function to compare memory without leaking
     timing information by short-circuiting like memcmp() and use it for
     some of the more sensitive comparisons (though nothing high-value was
     readily attackable anyway); "looks ok" markus@
   - djm@cvs.openbsd.org 2010/07/13 23:13:16
     [auth-rsa.c channels.c jpake.c key.c misc.c misc.h monitor.c packet.c]
     [ssh-rsa.c]
     s/timing_safe_cmp/timingsafe_bcmp/g
   - jmc@cvs.openbsd.org 2010/07/14 17:06:58
     [ssh.1]
     finally ssh synopsis looks nice again! this commit just removes a ton of
     hacks we had in place to make it work with old groff;
   - schwarze@cvs.openbsd.org 2010/07/15 21:20:38
     [ssh-keygen.1]
     repair incorrect block nesting, which screwed up indentation;
     problem reported and fix OK by jmc@

20100714
 - (tim) [contrib/redhat/openssh.spec] Bug 1796: Test for skip_x11_askpass
   (line 77) should have been for no_x11_askpass. 

20100702
 - (djm) OpenBSD CVS Sync
   - jmc@cvs.openbsd.org 2010/06/26 00:57:07
     [ssh_config.5]
     tweak previous;
   - djm@cvs.openbsd.org 2010/06/26 23:04:04
     [ssh.c]
     oops, forgot to #include <canohost.h>; spotted and patch from chl@
   - djm@cvs.openbsd.org 2010/06/29 23:15:30
     [ssh-keygen.1 ssh-keygen.c]
     allow import (-i) and export (-e) of PEM and PKCS#8 encoded keys;
     bz#1749; ok markus@
   - djm@cvs.openbsd.org 2010/06/29 23:16:46
     [auth2-pubkey.c sshd_config.5]
     allow key options (command="..." and friends) in AuthorizedPrincipals;
     ok markus@
   - jmc@cvs.openbsd.org 2010/06/30 07:24:25
     [ssh-keygen.1]
     tweak previous;
   - jmc@cvs.openbsd.org 2010/06/30 07:26:03
     [ssh-keygen.c]
     sort usage();
   - jmc@cvs.openbsd.org 2010/06/30 07:28:34
     [sshd_config.5]
     tweak previous;
   - millert@cvs.openbsd.org 2010/07/01 13:06:59
     [scp.c]
     Fix a longstanding problem where if you suspend scp at the
     password/passphrase prompt the terminal mode is not restored.
     OK djm@
   - phessler@cvs.openbsd.org 2010/06/27 19:19:56
     [regress/Makefile]
     fix how we run the tests so we can successfully use SUDO='sudo -E'
     in our env
   - djm@cvs.openbsd.org 2010/06/29 23:59:54
     [cert-userkey.sh]
     regress tests for key options in AuthorizedPrincipals

20100627
 - (tim) [openbsd-compat/port-uw.c] Reorder includes. auth-options.h now needs
   key.h.

20100626
 - (djm) OpenBSD CVS Sync
   - djm@cvs.openbsd.org 2010/05/21 05:00:36
     [misc.c]
     colon() returns char*, so s/return (0)/return NULL/
   - markus@cvs.openbsd.org 2010/06/08 21:32:19
     [ssh-pkcs11.c]
     check length of value returned  C_GetAttributValue for != 0
     from mdrtbugzilla@codefive.co.uk; bugzilla #1773; ok dtucker@
   - djm@cvs.openbsd.org 2010/06/17 07:07:30
     [mux.c]
     Correct sizing of object to be allocated by calloc(), replacing
     sizeof(state) with sizeof(*state). This worked by accident since
     the struct contained a single int at present, but could have broken
     in the future. patch from hyc AT symas.com
   - djm@cvs.openbsd.org 2010/06/18 00:58:39
     [sftp.c]
     unbreak ls in working directories that contains globbing characters in
     their pathnames. bz#1655 reported by vgiffin AT apple.com
   - djm@cvs.openbsd.org 2010/06/18 03:16:03
     [session.c]
     Missing check for chroot_director == "none" (we already checked against
     NULL); bz#1564 from Jan.Pechanec AT Sun.COM
   - djm@cvs.openbsd.org 2010/06/18 04:43:08
     [sftp-client.c]
     fix memory leak in do_realpath() error path; bz#1771, patch from
     anicka AT suse.cz
   - djm@cvs.openbsd.org 2010/06/22 04:22:59
     [servconf.c sshd_config.5]
     expose some more sshd_config options inside Match blocks:
       AuthorizedKeysFile AuthorizedPrincipalsFile
       HostbasedUsesNameFromPacketOnly PermitTunnel
     bz#1764; feedback from imorgan AT nas.nasa.gov; ok dtucker@
   - djm@cvs.openbsd.org 2010/06/22 04:32:06
     [ssh-keygen.c]
     standardise error messages when attempting to open private key
     files to include "progname: filename: error reason"
     bz#1783; ok dtucker@
   - djm@cvs.openbsd.org 2010/06/22 04:49:47
     [auth.c]
     queue auth debug messages for bad ownership or permissions on the user's
     keyfiles. These messages will be sent after the user has successfully
     authenticated (where our client will display them with LogLevel=debug).
     bz#1554; ok dtucker@
   - djm@cvs.openbsd.org 2010/06/22 04:54:30
     [ssh-keyscan.c]
     replace verbose and overflow-prone Linebuf code with read_keyfile_line()
     based on patch from joachim AT joachimschipper.nl; bz#1565; ok dtucker@
   - djm@cvs.openbsd.org 2010/06/22 04:59:12
     [session.c]
     include the user name on "subsystem request for ..." log messages;
     bz#1571; ok dtucker@
   - djm@cvs.openbsd.org 2010/06/23 02:59:02
     [ssh-keygen.c]
     fix printing of extensions in v01 certificates that I broke in r1.190
   - djm@cvs.openbsd.org 2010/06/25 07:14:46
     [channels.c mux.c readconf.c readconf.h ssh.h]
     bz#1327: remove hardcoded limit of 100 permitopen clauses and port
     forwards per direction; ok markus@ stevesk@
   - djm@cvs.openbsd.org 2010/06/25 07:20:04
     [channels.c session.c]
     bz#1750: fix requirement for /dev/null inside ChrootDirectory for
     internal-sftp accidentally introduced in r1.253 by removing the code
     that opens and dup /dev/null to stderr and modifying the channels code
     to read stderr but discard it instead; ok markus@
   - djm@cvs.openbsd.org 2010/06/25 08:46:17
     [auth1.c auth2-none.c]
     skip the initial check for access with an empty password when
     PermitEmptyPasswords=no; bz#1638; ok markus@
   - djm@cvs.openbsd.org 2010/06/25 23:10:30
     [ssh.c]
     log the hostname and address that we connected to at LogLevel=verbose
     after authentication is successful to mitigate "phishing" attacks by
     servers with trusted keys that accept authentication silently and
     automatically before presenting fake password/passphrase prompts;
     "nice!" markus@
   - djm@cvs.openbsd.org 2010/06/25 23:10:30
     [ssh.c]
     log the hostname and address that we connected to at LogLevel=verbose
     after authentication is successful to mitigate "phishing" attacks by
     servers with trusted keys that accept authentication silently and
     automatically before presenting fake password/passphrase prompts;
     "nice!" markus@

20100622
 - (djm) [loginrec.c] crank LINFO_NAMESIZE (username length) to 512
   bz#1579; ok dtucker

20100618
 - (djm) [contrib/ssh-copy-id] Update key file explicitly under ~
   rather than assuming that $CWD == $HOME. bz#1500, patch from
   timothy AT gelter.com

20100617
 - (tim) [contrib/cygwin/README] Remove a reference to the obsolete
   minires-devel package, and to add the reference to the libedit-devel
   package since CYgwin now provides libedit. Patch from Corinna Vinschen.

20100521
 - (djm) OpenBSD CVS Sync
   - djm@cvs.openbsd.org 2010/05/07 11:31:26
     [regress/Makefile regress/cert-userkey.sh]
     regress tests for AuthorizedPrincipalsFile and "principals=" key option.
     feedback and ok markus@
   - djm@cvs.openbsd.org 2010/05/11 02:58:04
     [auth-rsa.c]
     don't accept certificates marked as "cert-authority" here; ok markus@
   - djm@cvs.openbsd.org 2010/05/14 00:47:22
     [ssh-add.c]
     check that the certificate matches the corresponding private key before
     grafting it on
   - djm@cvs.openbsd.org 2010/05/14 23:29:23
     [channels.c channels.h mux.c ssh.c]
     Pause the mux channel while waiting for reply from aynch callbacks.
     Prevents misordering of replies if new requests arrive while waiting.
     
     Extend channel open confirm callback to allow signalling failure
     conditions as well as success. Use this to 1) fix a memory leak, 2)
     start using the above pause mechanism and 3) delay sending a success/
     failure message on mux slave session open until we receive a reply from
     the server.
     
     motivated by and with feedback from markus@
   - markus@cvs.openbsd.org 2010/05/16 12:55:51
     [PROTOCOL.mux clientloop.h mux.c readconf.c readconf.h ssh.1 ssh.c]
     mux support for remote forwarding with dynamic port allocation,
     use with
        LPORT=`ssh -S muxsocket -R0:localhost:25 -O forward somehost`
     feedback and ok djm@
   - djm@cvs.openbsd.org 2010/05/20 11:25:26
     [auth2-pubkey.c]
     fix logspam when key options (from="..." especially) deny non-matching
     keys; reported by henning@ also bz#1765; ok markus@ dtucker@
   - djm@cvs.openbsd.org 2010/05/20 23:46:02
     [PROTOCOL.certkeys auth-options.c ssh-keygen.c]
     Move the permit-* options to the non-critical "extensions" field for v01
     certificates. The logic is that if another implementation fails to
     implement them then the connection just loses features rather than fails
     outright.
     
     ok markus@

20100511
 - (dtucker) [Makefile.in] Bug #1770: Link libopenbsd-compat twice to solve
   circular dependency problem on old or odd platforms.  From Tom Lane, ok
   djm@.
 - (djm) [openbsd-compat/openssl-compat.h] Fix build breakage on older
   libcrypto by defining OPENSSL_[DR]SA_MAX_MODULUS_BITS if they aren't
   already. ok dtucker@

20100510
 - OpenBSD CVS Sync
   - djm@cvs.openbsd.org 2010/04/23 01:47:41
     [ssh-keygen.c]
     bz#1740: display a more helpful error message when $HOME is
     inaccessible while trying to create .ssh directory. Based on patch
     from jchadima AT redhat.com; ok dtucker@
   - djm@cvs.openbsd.org 2010/04/23 22:27:38
     [mux.c]
     set "detach_close" flag when registering channel cleanup callbacks.
     This causes the channel to close normally when its fds close and
     hangs when terminating a mux slave using ~. bz#1758; ok markus@
   - djm@cvs.openbsd.org 2010/04/23 22:42:05
     [session.c]
     set stderr to /dev/null for subsystems rather than just closing it.
     avoids hangs if a subsystem or shell initialisation writes to stderr.
     bz#1750; ok markus@
   - djm@cvs.openbsd.org 2010/04/23 22:48:31
     [ssh-keygen.c]
     refuse to generate keys longer than OPENSSL_[RD]SA_MAX_MODULUS_BITS,
     since we would refuse to use them anyway. bz#1516; ok dtucker@
   - djm@cvs.openbsd.org 2010/04/26 22:28:24
     [sshconnect2.c]
     bz#1502: authctxt.success is declared as an int, but passed by
     reference to function that accepts sig_atomic_t*. Convert it to
     the latter; ok markus@ dtucker@
   - djm@cvs.openbsd.org 2010/05/01 02:50:50
     [PROTOCOL.certkeys]
     typo; jmeltzer@
   - dtucker@cvs.openbsd.org 2010/05/05 04:22:09
     [sftp.c]
     restore mput and mget which got lost in the tab-completion changes.
     found by Kenneth Whitaker, ok djm@
   - djm@cvs.openbsd.org 2010/05/07 11:30:30
     [auth-options.c auth-options.h auth.c auth.h auth2-pubkey.c]
     [key.c servconf.c servconf.h sshd.8 sshd_config.5]
     add some optional indirection to matching of principal names listed
     in certificates. Currently, a certificate must include the a user's name
     to be accepted for authentication. This change adds the ability to
     specify a list of certificate principal names that are acceptable.
     
     When authenticating using a CA trusted through ~/.ssh/authorized_keys,
     this adds a new principals="name1[,name2,...]" key option.
     
     For CAs listed through sshd_config's TrustedCAKeys option, a new config
     option "AuthorizedPrincipalsFile" specifies a per-user file containing
     the list of acceptable names.
     
     If either option is absent, the current behaviour of requiring the
     username to appear in principals continues to apply.
     
     These options are useful for role accounts, disjoint account namespaces
     and "user@realm"-style naming policies in certificates.
     
     feedback and ok markus@
   - jmc@cvs.openbsd.org 2010/05/07 12:49:17
     [sshd_config.5]
     tweak previous;

20100423
 - (dtucker) [configure.ac] Bug #1756: Check for the existence of a lib64 dir
   in the openssl install directory (some newer openssl versions do this on at
   least some amd64 platforms).

20100418
 - OpenBSD CVS Sync
   - jmc@cvs.openbsd.org 2010/04/16 06:45:01
     [ssh_config.5]
     tweak previous; ok djm
   - jmc@cvs.openbsd.org 2010/04/16 06:47:04
     [ssh-keygen.1 ssh-keygen.c]
     tweak previous; ok djm
   - djm@cvs.openbsd.org 2010/04/16 21:14:27
     [sshconnect.c]
     oops, %r => remote username, not %u
   - djm@cvs.openbsd.org 2010/04/16 01:58:45
     [regress/cert-hostkey.sh regress/cert-userkey.sh]
     regression tests for v01 certificate format
     includes interop tests for v00 certs
 - (dtucker) [contrib/aix/buildbff.sh] Fix creation of ssh_prng_cmds.default
   file.

20100416
 - (djm) Release openssh-5.5p1
 - OpenBSD CVS Sync
   - djm@cvs.openbsd.org 2010/03/26 03:13:17
     [bufaux.c]
     allow buffer_get_int_ret/buffer_get_int64_ret to take a NULL pointer
     argument to allow skipping past values in a buffer
   - jmc@cvs.openbsd.org 2010/03/26 06:54:36
     [ssh.1]
     tweak previous;
   - jmc@cvs.openbsd.org 2010/03/27 14:26:55
     [ssh_config.5]
     tweak previous; ok dtucker
   - djm@cvs.openbsd.org 2010/04/10 00:00:16
     [ssh.c]
     bz#1746 - suppress spurious tty warning when using -O and stdin
     is not a tty; ok dtucker@ markus@
   - djm@cvs.openbsd.org 2010/04/10 00:04:30
     [sshconnect.c]
     fix terminology: we didn't find a certificate in known_hosts, we found
     a CA key
   - djm@cvs.openbsd.org 2010/04/10 02:08:44
     [clientloop.c]
     bz#1698: kill channel when pty allocation requests fail. Fixed
     stuck client if the server refuses pty allocation.
     ok dtucker@ "think so" markus@
   - djm@cvs.openbsd.org 2010/04/10 02:10:56
     [sshconnect2.c]
     show the key type that we are offering in debug(), helps distinguish
     between certs and plain keys as the path to the private key is usually
     the same.
   - djm@cvs.openbsd.org 2010/04/10 05:48:16
     [mux.c]
     fix NULL dereference; from matthew.haub AT alumni.adelaide.edu.au
   - djm@cvs.openbsd.org 2010/04/14 22:27:42
     [ssh_config.5 sshconnect.c]
     expand %r => remote username in ssh_config:ProxyCommand;
     ok deraadt markus
   - markus@cvs.openbsd.org 2010/04/15 20:32:55
     [ssh-pkcs11.c]
     retry lookup for private key if there's no matching key with CKA_SIGN
     attribute enabled; this fixes fixes MuscleCard support (bugzilla #1736)
     ok djm@
   - djm@cvs.openbsd.org 2010/04/16 01:47:26
     [PROTOCOL.certkeys auth-options.c auth-options.h auth-rsa.c]
     [auth2-pubkey.c authfd.c key.c key.h myproposal.h ssh-add.c]
     [ssh-agent.c ssh-dss.c ssh-keygen.1 ssh-keygen.c ssh-rsa.c]
     [sshconnect.c sshconnect2.c sshd.c]
     revised certificate format ssh-{dss,rsa}-cert-v01@openssh.com with the
     following changes:
     
     move the nonce field to the beginning of the certificate where it can
     better protect against chosen-prefix attacks on the signature hash
     
     Rename "constraints" field to "critical options"
     
     Add a new non-critical "extensions" field
     
     Add a serial number
     
     The older format is still support for authentication and cert generation
     (use "ssh-keygen -t v00 -s ca_key ..." to generate a v00 certificate)
     
     ok markus@