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[ssh_config.5 key.h readconf.c readconf.h ssh-keygen.1 ssh-keygen.c key.c
sshconnect.c]
Introduce SSH Fingerprint ASCII Visualization, a technique inspired by the
graphical hash visualization schemes known as "random art", and by
Dan Kaminsky's musings on the subject during a BlackOp talk at the
23C3 in Berlin.
Scientific publication (original paper):
"Hash Visualization: a New Technique to improve Real-World Security",
Perrig A. and Song D., 1999, International Workshop on Cryptographic
Techniques and E-Commerce (CrypTEC '99)
http://sparrow.ece.cmu.edu/~adrian/projects/validation/validation.pdf
The algorithm used here is a worm crawling over a discrete plane,
leaving a trace (augmenting the field) everywhere it goes.
Movement is taken from dgst_raw 2bit-wise. Bumping into walls
makes the respective movement vector be ignored for this turn,
thus switching to the other color of the chessboard.
Graphs are not unambiguous for now, because circles in graphs can be
walked in either direction.
discussions with several people,
help, corrections and ok markus@ djm@
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[sshd.8]
kill trailing whitespace;
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Do not set SO_REUSEADDR on wildcard X11 listeners (X11UseLocalhost=no)
bz#1464; ok dtucker
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[Makefile regress/key-options.sh]
Add regress test for key options. ok djm@
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[bufaux.c]
Use '\0' for a nul byte rather than unadorned 0. ok djm@
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[auth-options.c match.c servconf.c addrmatch.c sshd.8]
support CIDR address matching in .ssh/authorized_keys from="..." stanzas
ok and extensive testing dtucker@
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[PROTOCOL ssh.c serverloop.c]
Add a no-more-sessions@openssh.com global request extension that the
client sends when it knows that it will never request another session
(i.e. when session multiplexing is disabled). This allows a server to
disallow further session requests and terminate the session.
Why would a non-multiplexing client ever issue additional session
requests? It could have been attacked with something like SSH'jack:
http://www.storm.net.nz/projects/7
feedback & ok markus
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[ssh_config.5]
clarify that Host patterns are space-separated. ok deraadt
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as environment.
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specific tests on platforms that don't do IPv6.
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[test-exec.sh]
Add quotes
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[test-exec.sh]
Use a more portable construct for checking if we're running a putty test
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since the new CIDR code in addmatch.c references it.
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[addrmatch.sh Makefile]
Regress test for Match CIDR rules. ok djm@
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[regress/test-exec.sh]
Don't generate putty keys if we're not going to use them. ok djm
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[sshd.8 sshd.c]
- update usage()
- fix SYNOPSIS, and sort options
- some minor additional fixes
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[sshd_config.5]
tweak previous;
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[sshd.c channels.h channels.c log.c servconf.c log.h servconf.h sshd.8]
Add extended test mode (-T) and connection parameters for test mode (-C).
-T causes sshd to write its effective configuration to stdout and exit.
-C causes any relevant Match rules to be applied before output. The
combination allows tesing of the parser and config files. ok deraadt djm
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[sshd_config.5]
better reference for pattern-list
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- djm@cvs.openbsd.org 2008/06/10 03:57:27
[servconf.c match.h sshd_config.5]
support CIDR address matching in sshd_config "Match address" blocks, with
full support for negation and fall-back to classic wildcard matching.
For example:
Match address 192.0.2.0/24,3ffe:ffff::/32,!10.*
PasswordAuthentication yes
addrmatch.c code mostly lifted from flowd's addr.c
feedback and ok dtucker@
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[PROTOCOL]
Use a $OpenBSD tag so our scripts will sync changes.
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[PROTOCOL]
Have the sftp client store the statvfs replies in wire format,
which prevents problems when the server's native sizes exceed the
client's.
Also extends the sizes of the remaining 32bit wire format to 64bit,
they're specified as unsigned long in the standard.
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[PROTOCOL]
statvfs member fsid needs to be wider, increase it to 64 bits and
crank extension revision number to 2; prodded and ok dtucker@
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Extend 32bit -> 64bit values for statvfs extension missed in previous
commit.
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[sftp.c sftp-client.c sftp-client.h]
Have the sftp client store the statvfs replies in wire format,
which prevents problems when the server's native sizes exceed the
client's.
Also extends the sizes of the remaining 32bit wire format to 64bit,
they're specified as unsigned long in the standard.
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[sftp-server.c]
Add case for ENOSYS in errno_to_portable; ok deraadt
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macro to convert fsid to unsigned long for platforms where fsid is a
2-member array.
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openbsd-compat/Makefile.in openbsd-compat/openbsd-compat.h
openbsd-compat/bsd-statvfs.{c,h}] Add a null implementation of statvfs and
fstatvfs and remove #defines around statvfs code. ok djm@
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[sftp-server.c sftp-client.c]
statvfs member fsid needs to be wider, increase it to 64 bits and
crank extension revision number to 2; prodded and ok dtucker@
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[clientloop.c]
unbreak tree by committing this bit that I missed from:
Fix sending tty modes when stdin is not a tty (bz#1199). Previously
we would send the modes corresponding to a zeroed struct termios,
whereas we should have been sending an empty list of modes.
Based on patch from daniel.ritz AT alcatel.ch; ok dtucker@ markus@
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[ssh-keygen.c]
support -l (print fingerprint) in combination with -F (find host) to
search for a host in ~/.ssh/known_hosts and display its fingerprint;
ok markus@
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[sshtty.c ttymodes.c sshpty.h]
Fix sending tty modes when stdin is not a tty (bz#1199). Previously
we would send the modes corresponding to a zeroed struct termios,
whereas we should have been sending an empty list of modes.
Based on patch from daniel.ritz AT alcatel.ch; ok dtucker@ markus@
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[packet.c] unbreak protocol keepalive timeouts bz#1465; ok dtucker@
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not enable statvfs extensions on platforms that do not have statvfs. ok djm@
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in arc4random_uniform with upper_bound in (2^30,2*31). Note that
OpenSSH did not make requests with upper bounds in this range.
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[openbsd-compat/fmt_scaled.c openbsd-compat/openbsd-compat.h]
Fix compilation on Linux, including pulling in fmt_scaled(3)
implementation from OpenBSD's libutil.
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[PROTOCOL]
document our protocol extensions and deviations; ok markus@
- djm@cvs.openbsd.org 2008/05/17 01:31:56
[PROTOCOL]
grammar and correctness fixes from stevesk@
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[sftp-server.c]
comment extension announcement
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[nchan2.ms]
document eow message in ssh protocol 2 channel state machine;
feedback and ok markus@
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[umac.c]
Ensure nh_result lies on a 64-bit boundary (fixes warnings observed
on Itanium on Linux); from Dale Talcott (bug #1462); ok djm@
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[channels.h clientloop.c nchan.c serverloop.c]
unbreak
ssh -2 localhost od /bin/ls | true
ignoring SIGPIPE by adding a new channel message (EOW) that signals
the peer that we're not interested in any data it might send.
fixes bz #85; discussion, debugging and ok djm@
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[channels.c]
error-fd race: don't enable the error fd in the select bitmask
for channels with both in- and output closed, since the channel
will go away before we call select();
report, lots of debugging help and ok djm@
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[session.c]
re-add the USE_PIPES code and enable it.
without pipes shutdown-read from the sshd does not trigger
a SIGPIPE when the forked program does a write.
ok djm@
(Id sync only, USE_PIPES never left portable OpenSSH)
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[ssh.c]
dingo stole my diff hunk
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[clientloop.c clientloop.h ssh.c mux.c]
tidy up session multiplexing code, moving it into its own file and
making the function names more consistent - making ssh.c and
clientloop.c a fair bit more readable.
ok markus@
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[channels.c channels.h clientloop.c serverloop.c]
Try additional addresses when connecting to a port forward destination
whose DNS name resolves to more than one address. The previous behaviour
was to try the first address and give up.
Reported by stig AT venaas.com in bz#343
great feedback and ok markus@
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[clientloop.c clientloop.h ssh.c]
Use new channel status confirmation callback system to properly deal
with "important" channel requests that fail, in particular command exec,
shell and subsystem requests. Previously we would optimistically assume
that the requests would always succeed, which could cause hangs if they
did not (e.g. when the server runs out of fds) or were unimplemented by
the server (bz #1384)
Also, properly report failing multiplex channel requests via the mux
client stderr (subject to LogLevel in the mux master) - better than
silently failing.
most bits ok markus@ (as part of a larger diff)
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