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[ssh.c]
thal shalt not code past the eightieth column
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[clientloop.c]
thall shalt not code past the eightieth column
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[clientloop.h ssh.c clientloop.c]
maintain an ordered queue of outstanding global requests that we
expect replies to, similar to the per-channel confirmation queue.
Use this queue to verify success or failure for remote forward
establishment in a race free way.
ok dtucker@
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[clientloop.h mux.c channels.c clientloop.c channels.h]
Enable ~ escapes for multiplex slave sessions; give each channel
its own escape state and hook the escape filters up to muxed
channels. bz #1331
Mux slaves do not currently support the ~^Z and ~& escapes.
NB. this change cranks the mux protocol version, so a new ssh
mux client will not be able to connect to a running old ssh
mux master.
ok dtucker@
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[key.c]
use an odd number of rows and columns and a separate start marker, looks
better; ok grunk@
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[sshconnect.c]
Make ssh print the random art also when ssh'ing to a host using IP only.
spotted by naddy@, ok and help djm@ dtucker@
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[dns.c canohost.c sshconnect.c]
Do not pass "0" strings as ports to getaddrinfo because the lookups
can slow things down and we never use the service info anyway. bz
#859, patch from YOSHIFUJI Hideaki and John Devitofranceschi. ok
deraadt@ djm@
djm belives that the reason for the "0" strings is to ensure that
it's not possible to call getaddrinfo with both host and port being
NULL. In the case of canohost.c host is a local array. In the
case of sshconnect.c, it's checked for null immediately before use.
In dns.c it ultimately comes from ssh.c:main() and is guaranteed to
be non-null but it's not obvious, so I added a warning message in
case it is ever passed a null.
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[key.c]
#define statements that are not atoms need braces around them, else they
will cause trouble in some cases.
Also do a computation of -1 once, and not in a loop several times.
spotted by otto@
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[ssh_config.5]
CheckHostIP set to ``fingerprint'' will display both hex and random art
spotted by naddy@
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[key.c]
simpler way of computing the augmentations; ok grunk@
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[ssh-keygen.c ssh-keygen.1]
ssh-keygen would write fingerprints to STDOUT, and random art to STDERR,
that is not how it was envisioned.
Also correct manpage saying that -v is needed along with -l for it to work.
spotted by naddy@
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[ssh-keygen.c]
ssh-keygen -lv -f /etc/ssh/ssh_host_rsa_key.pub
would not display you the random art as intended, spotted by canacar@
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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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