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UpdateHostKeys fixes:
I accidentally changed the format of the hostkeys@openssh.com messages
last week without changing the extension name, and this has been causing
connection failures for people who are running -current. First reported
by sthen@
s/hostkeys@openssh.com/hostkeys-00@openssh.com/
Change the name of the proof message too, and reorder it a little.
Also, UpdateHostKeys=ask is incompatible with ControlPersist (no TTY
available to read the response) so disable UpdateHostKeys if it is in
ask mode and ControlPersist is active (and document this)
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Reduce use of <sys/param.h> and transition to <limits.h>
throughout. ok djm markus
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when hostname canonicalisation is enabled, try to parse
hostnames as addresses before looking them up for canonicalisation. fixes
bz#2074 and avoids needless DNS lookups in some cases; ok markus
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move authfd.c and its tentacles to the new buffer/key
API; ok markus@
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reorder hostbased key attempts to better match the
default hostkey algorithms order in myproposal.h; ok markus@
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Nuke more obvious #include duplications.
ok deraadt@ millert@ tedu@
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tweak previous;
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Tweak config reparsing with host canonicalisation
Make the second pass through the config files always run when
hostname canonicalisation is enabled.
Add a "Match canonical" criteria that allows ssh_config Match
blocks to trigger only in the second config pass.
Add a -G option to ssh that causes it to parse its configuration
and dump the result to stdout, similar to "sshd -T"
Allow ssh_config Port options set in the second config parse
phase to be applied (they were being ignored).
bz#2267 bz#2286; ok markus
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[mux.c ssh.c]
reflect stdio-forward ("ssh -W host:port ...") failures in exit status.
previously we were always returning 0. bz#2255 reported by Brendan
Germain; ok dtucker
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[PROTOCOL auth-options.c auth-passwd.c auth-rh-rsa.c auth-rhosts.c]
[auth-rsa.c auth.c auth1.c auth2-hostbased.c auth2-kbdint.c auth2-none.c]
[auth2-passwd.c auth2-pubkey.c auth2.c canohost.c channels.c channels.h]
[clientloop.c misc.c misc.h monitor.c mux.c packet.c readconf.c]
[readconf.h servconf.c servconf.h serverloop.c session.c ssh-agent.c]
[ssh.c ssh_config.5 sshconnect.c sshconnect1.c sshconnect2.c sshd.c]
[sshd_config.5 sshlogin.c]
Add support for Unix domain socket forwarding. A remote TCP port
may be forwarded to a local Unix domain socket and vice versa or
both ends may be a Unix domain socket. This is a reimplementation
of the streamlocal patches by William Ahern from:
http://www.25thandclement.com/~william/projects/streamlocal.html
OK djm@ markus@
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[ssh.c ssh_config.5]
Add a %C escape sequence for LocalCommand and ControlPath that expands
to a unique identifer based on a has of the tuple of (local host,
remote user, hostname, port).
Helps avoid exceeding sockaddr_un's miserly pathname limits for mux
control paths.
bz#2220, based on patch from mancha1 AT zoho.com; ok markus@
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[channels.c channels.h clientloop.c ssh.c]
fix remote fwding with same listen port but different listen address
with gerhard@, ok djm@
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[ssh.c]
don't fatal() when hostname canonicalisation fails with a
ProxyCommand in use; continue and allow the ProxyCommand to
connect anyway (e.g. to a host with a name outside the DNS
behind a bastion)
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[auth.c authfd.c authfile.c bufaux.c cipher.c cipher.h hostfile.c]
[kex.c key.c mac.c monitor.c monitor_wrap.c myproposal.h packet.c]
[roaming_client.c ssh-agent.c ssh-keygen.c ssh-keyscan.c ssh-keysign.c]
[ssh-pkcs11.h ssh.c sshconnect.c sshconnect2.c sshd.c]
make compiling against OpenSSL optional (make OPENSSL=no);
reduces algorithms to curve25519, aes-ctr, chacha, ed25519;
allows us to explore further options; with and ok djm
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version. From des@des.no
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[ssh.c]
bz#2205: avoid early hostname lookups unless canonicalisation is enabled;
ok dtucker@ markus@
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[readconf.c readconf.h ssh.c ssh_config.5]
reparse ssh_config and ~/.ssh/config if hostname canonicalisation changes
the hostname. This allows users to write configurations that always
refer to canonical hostnames, e.g.
CanonicalizeHostname yes
CanonicalDomains int.example.org example.org
CanonicalizeFallbackLocal no
Host *.int.example.org
Compression off
Host *.example.org
User djm
ok markus@
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[ssh.c]
delay lowercasing of hostname until right before hostname
canonicalisation to unbreak case-sensitive matching of ssh_config;
reported by Ike Devolder; ok markus@
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[auth2-chall.c authfd.c authfile.c bufaux.c bufec.c canohost.c]
[channels.c cipher-chachapoly.c clientloop.c configure.ac hostfile.c]
[kexc25519.c krl.c monitor.c sandbox-systrace.c session.c]
[sftp-client.c ssh-keygen.c ssh.c sshconnect2.c sshd.c sshlogin.c]
[openbsd-compat/explicit_bzero.c openbsd-compat/openbsd-compat.h]
replace most bzero with explicit_bzero, except a few that cna be memset
ok djm dtucker
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[ssh.c]
don't forget to load Ed25519 certs too
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[authfd.c authfile.c key.c key.h myproposal.h pathnames.h readconf.c]
[servconf.c ssh-agent.c ssh-keygen.c ssh-keyscan.1 ssh-keyscan.c]
[ssh-keysign.c ssh.c ssh_config.5 sshd.8 sshd.c verify.c ssh-ed25519.c]
[sc25519.h sc25519.c hash.c ge25519_base.data ge25519.h ge25519.c]
[fe25519.h fe25519.c ed25519.c crypto_api.h blocks.c]
support ed25519 keys (hostkeys and user identities) using the public
domain ed25519 reference code from SUPERCOP, see
http://ed25519.cr.yp.to/software.html
feedback, help & ok djm@
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[ssh.1 ssh.c]
- put -Q in the right place
- Ar was a poor choice for the arguments to -Q. i've chosen an
admittedly equally poor Cm, at least consistent with the rest
of the docs. also no need for multiple instances
- zap a now redundant Nm
- usage() sync
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[ssh.1 ssh.c]
improve -Q usage and such. One usage change is that the option is now
case-sensitive
ok dtucker markus djm
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[Makefile.in PROTOCOL PROTOCOL.chacha20poly1305 authfile.c chacha.c]
[chacha.h cipher-chachapoly.c cipher-chachapoly.h cipher.c cipher.h]
[dh.c myproposal.h packet.c poly1305.c poly1305.h servconf.c ssh.1]
[ssh.c ssh_config.5 sshd_config.5] Add a new protocol 2 transport
cipher "chacha20-poly1305@openssh.com" that combines Daniel
Bernstein's ChaCha20 stream cipher and Poly1305 MAC to build an
authenticated encryption mode.
Inspired by and similar to Adam Langley's proposal for TLS:
http://tools.ietf.org/html/draft-agl-tls-chacha20poly1305-03
but differs in layout used for the MAC calculation and the use of a
second ChaCha20 instance to separately encrypt packet lengths.
Details are in the PROTOCOL.chacha20poly1305 file.
Feedback markus@, naddy@; manpage bits Loganden Velvindron @ AfriNIC
ok markus@ naddy@
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[cipher.c cipher.h kex.c kex.h mac.c mac.h servconf.c ssh.c]
Output the effective values of Ciphers, MACs and KexAlgorithms when
the default has not been overridden. ok markus@
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[ssh.c]
fix crash when using ProxyCommand caused by previous commit - was calling
freeaddrinfo(NULL); spotted by sthen@ and Tim Ruehsen, patch by sthen@
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[ssh.c]
fix bug introduced in hostname canonicalisation commit: don't try to
resolve hostnames when a ProxyCommand is set unless the user has forced
canonicalisation; spotted by Iain Morgan
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[readconf.c ssh.c]
comment
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[ssh.c]
rearrange check to reduce diff against -portable
(Id sync only)
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[ssh.c ssh_config.5]
one I missed in previous: s/isation/ization/
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[readconf.c readconf.h ssh.1 ssh.c ssh_config.5]
s/canonicalise/canonicalize/ for consistency with existing spelling,
e.g. authorized_keys; pointed out by naddy@
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[readconf.c readconf.h roaming_client.c ssh.1 ssh.c ssh_config.5]
[sshconnect.c sshconnect.h]
Implement client-side hostname canonicalisation to allow an explicit
search path of domain suffixes to use to convert unqualified host names
to fully-qualified ones for host key matching.
This is particularly useful for host certificates, which would otherwise
need to list unqualified names alongside fully-qualified ones (and this
causes a number of problems).
"looks fine" markus@
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[ssh.c]
whitespace at EOL; pointed out by markus@
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[canohost.c misc.c misc.h readconf.c sftp-server.c ssh.c]
refactor client config code a little:
add multistate option partsing to readconf.c, similar to servconf.c's
existing code.
move checking of options that accept "none" as an argument to readconf.c
add a lowercase() function and use it instead of explicit tolower() in
loops
part of a larger diff that was ok markus@
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[readconf.c readconf.h ssh-keysign.c ssh.c ssh_config.5]
add a "Match" keyword to ssh_config that allows matching on hostname,
user and result of arbitrary commands. "nice work" markus@
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[ssh.c]
daemonise backgrounded (ControlPersist'ed) multiplexing master to ensure
it is fully detached from its controlling terminal. based on debugging
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[ssh-keygen.c ssh.c]
More useful error message on missing current user in /etc/passwd
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[ssh.c]
set TCP nodelay for connections started with -N; bz#2124 ok dtucker@
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[xmalloc.h cipher.c sftp-glob.c ssh-keyscan.c ssh.c sftp-common.c
ssh-ecdsa.c auth2-chall.c compat.c readconf.c kexgexs.c monitor.c
gss-genr.c cipher-3des1.c kex.c monitor_wrap.c ssh-pkcs11-client.c
auth-options.c rsa.c auth2-pubkey.c sftp.c hostfile.c auth2.c
servconf.c auth.c authfile.c xmalloc.c uuencode.c sftp-client.c
auth2-gss.c sftp-server.c bufaux.c mac.c session.c jpake.c kexgexc.c
sshconnect.c auth-chall.c auth2-passwd.c sshconnect1.c buffer.c
kexecdhs.c kexdhs.c ssh-rsa.c auth1.c ssh-pkcs11.c auth2-kbdint.c
kexdhc.c sshd.c umac.c ssh-dss.c auth2-jpake.c bufbn.c clientloop.c
monitor_mm.c scp.c roaming_client.c serverloop.c key.c auth-rsa.c
ssh-pkcs11-helper.c ssh-keysign.c ssh-keygen.c match.c channels.c
sshconnect2.c addrmatch.c mux.c canohost.c kexecdhc.c schnorr.c
ssh-add.c misc.c auth2-hostbased.c ssh-agent.c bufec.c groupaccess.c
dns.c packet.c readpass.c authfd.c moduli.c]
bye, bye xfree(); ok markus@
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[ssh.c]
add -Q to usage; reminded by jmc@
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[authfile.c cipher.c cipher.h kex.c kex.h kexecdh.c kexecdhc.c kexecdhs.c]
[key.c key.h mac.c mac.h packet.c ssh.1 ssh.c]
add the ability to query supported ciphers, MACs, key type and KEX
algorithms to ssh. Includes some refactoring of KEX and key type handling
to be table-driven; ok markus@
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[log.c log.h ssh.1 ssh.c sshd.8 sshd.c]
Add -E option to ssh and sshd to append debugging logs to a specified file
instead of stderr or syslog. ok markus@, man page help jmc@
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[ssh.c]
allow "ssh -f none ..." ok markus@
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[ssh.c]
Allow IdenityFile=none; ok markus deraadt (and dtucker for an earlier
version)
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[ssh.c readconf.c readconf.h]
Don't complain if IdentityFiles specified in system-wide configs are
missing. ok djm, deraadt
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[readconf.c ssh.c readconf.h sshconnect2.c]
Keep track of which IndentityFile options were manually supplied and which
were default options, and don't warn if the latter are missing.
ok markus@
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[ssh.c]
move setting of tty_flag to after config parsing so RequestTTY options
are correctly picked up. bz#1995 patch from przemoc AT gmail.com;
ok dtucker@
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[ssh.c]
set interactive ToS for forwarded X11 sessions. ok djm@
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[ssh.c]
bz#1943: unbreak stdio forwarding when ControlPersist is in user - ssh
was incorrectly requesting the forward in both the control master and
slave. skip requesting it in the master to fix. ok markus@
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