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[channels.c channels.h clientloop.h mux.c ssh.c]
support for cancelling local and remote port forwards via the multiplex
socket. Use ssh -O cancel -L xx:xx:xx -R yy:yy:yy user@host" to request
the cancellation of the specified forwardings; ok markus@
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[ssh.c]
typo in comment
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[channels.c channels.h clientloop.c clientloop.h mux.c ssh.c]
hook up a channel confirm callback to warn the user then requested X11
forwarding was refused by the server; ok markus@
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[ssh.c]
bz#1883 - setproctitle() to identify mux master; patch from Bert.Wesarg
AT googlemail.com; ok dtucker@
NB. includes additional portability code to enable setproctitle emulation
on platforms that don't support it.
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[readconf.c readconf.h ssh.c ssh_config.5 sshconnect.c sshconnect2.c]
Remove undocumented legacy options UserKnownHostsFile2 and
GlobalKnownHostsFile2 by making UserKnownHostsFile/GlobalKnownHostsFile
accept multiple paths per line and making their defaults include
known_hosts2; ok markus
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[ssh.c]
fix dropping from previous diff
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[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@
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[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@
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[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@
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[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.
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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
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[ssh.c]
unbreak %n expansion in LocalCommand; patch from bert.wesarg AT
googlemail.com; ok markus@
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[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@
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[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@
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[clientloop.c ssh.c sshconnect.c sshconnect.h]
kill proxy command on fatal() (we already kill it on clean exit);
ok markus@
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[ssh.c]
install a SIGCHLD handler to reap expiried child process; ok markus@
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for missing headers and compiler warnings.
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[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@
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[ssh.c]
unbreak ControlPersist=yes for ControlMaster=yes; ok djm@
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[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
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[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@
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[ssh-add.c ssh-agent.c ssh-keygen.c ssh-keysign.c ssh.c sshd.c]
backout previous temporarily; discussed with deraadt@
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[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
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[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@
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[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@
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[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@
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[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@
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[ssh.c]
Make ExitOnForwardFailure work with fork-after-authentication ("ssh -f")
for protocol 2. ok markus@
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[ssh.c]
oops, forgot to #include <canohost.h>; spotted and patch from chl@
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[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@
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[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@
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[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@
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[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@
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[ssh.c]
bz#1746 - suppress spurious tty warning when using -O and stdin
is not a tty; ok dtucker@ markus@
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- djm@cvs.openbsd.org 2010/02/26 20:29:54
[PROTOCOL PROTOCOL.agent PROTOCOL.certkeys addrmatch.c auth-options.c]
[auth-options.h auth.h auth2-pubkey.c authfd.c dns.c dns.h hostfile.c]
[hostfile.h kex.h kexdhs.c kexgexs.c key.c key.h match.h monitor.c]
[myproposal.h servconf.c servconf.h ssh-add.c ssh-agent.c ssh-dss.c]
[ssh-keygen.1 ssh-keygen.c ssh-rsa.c ssh.1 ssh.c ssh2.h sshconnect.c]
[sshconnect2.c sshd.8 sshd.c sshd_config.5]
Add support for certificate key types for users and hosts.
OpenSSH certificate key types are not X.509 certificates, but a much
simpler format that encodes a public key, identity information and
some validity constraints and signs it with a CA key. CA keys are
regular SSH keys. This certificate style avoids the attack surface
of X.509 certificates and is very easy to deploy.
Certified host keys allow automatic acceptance of new host keys
when a CA certificate is marked as sh/known_hosts.
see VERIFYING HOST KEYS in ssh(1) for details.
Certified user keys allow authentication of users when the signing
CA key is marked as trusted in authorized_keys. See "AUTHORIZED_KEYS
FILE FORMAT" in sshd(8) for details.
Certificates are minted using ssh-keygen(1), documentation is in
the "CERTIFICATES" section of that manpage.
Documentation on the format of certificates is in the file
PROTOCOL.certkeys
feedback and ok markus@
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[ssh-add.1 ssh-keygen.1 ssh.1 ssh.c]
tweak previous; ok markus
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[pathnames.h readconf.c readconf.h scp.1 sftp.1 ssh-add.1 ssh-add.c]
[ssh-agent.c ssh-keygen.1 ssh-keygen.c ssh.1 ssh.c ssh_config.5]
replace our obsolete smartcard code with PKCS#11.
ftp://ftp.rsasecurity.com/pub/pkcs/pkcs-11/v2-20/pkcs-11v2-20.pdf
ssh(1) and ssh-keygen(1) use dlopen(3) directly to talk to a PKCS#11
provider (shared library) while ssh-agent(1) delegates PKCS#11 to
a forked a ssh-pkcs11-helper process.
PKCS#11 is currently a compile time option.
feedback and ok djm@; inspired by patches from Alon Bar-Lev
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[channels.c channels.h clientloop.c clientloop.h mux.c nchan.c ssh.c]
rewrite ssh(1) multiplexing code to a more sensible protocol.
The new multiplexing code uses channels for the listener and
accepted control sockets to make the mux master non-blocking, so
no stalls when processing messages from a slave.
avoid use of fatal() in mux master protocol parsing so an errant slave
process cannot take down a running master.
implement requesting of port-forwards over multiplexed sessions. Any
port forwards requested by the slave are added to those the master has
established.
add support for stdio forwarding ("ssh -W host:port ...") in mux slaves.
document master/slave mux protocol so that other tools can use it to
control a running ssh(1). Note: there are no guarantees that this
protocol won't be incompatibly changed (though it is versioned).
feedback Salvador Fandino, dtucker@
channel changes ok markus@
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[ssh_config channels.c ssh.1 channels.h ssh.c]
Add a 'netcat mode' (ssh -W). This connects stdio on the client to a
single port forward on the server. This allows, for example, using ssh as
a ProxyCommand to route connections via intermediate servers.
bz #1618, man page help from jmc@, ok markus@
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[channels.c ssh.1 servconf.c sshd_config.5 sshd.c channels.h servconf.h
ssh-keyscan.1 ssh-keyscan.c readconf.c sshconnect.c misc.c ssh.c
readconf.h scp.1 sftp.1 ssh_config.5 misc.h]
Remove RoutingDomain from ssh since it's now not needed. It can be
replaced with "route exec" or "nc -V" as a proxycommand. "route exec"
also ensures that trafic such as DNS lookups stays withing the specified
routingdomain. For example (from reyk):
# route -T 2 exec /usr/sbin/sshd
or inherited from the parent process
$ route -T 2 exec sh
$ ssh 10.1.2.3
ok deraadt@ markus@ stevesk@ reyk@
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[ssh.c sftp.c scp.c]
When passing user-controlled options with arguments to other programs,
pass the option and option argument as separate argv entries and
not smashed into one (e.g., as -l foo and not -lfoo). Also, always
pass a "--" argument to stop option parsing, so that a positional
argument that starts with a '-' isn't treated as an option. This
fixes some error cases as well as the handling of hostnames and
filenames that start with a '-'.
Based on a diff by halex@
ok halex@ djm@ deraadt@
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[ssh_config.5 sshd.c misc.h ssh-keyscan.1 readconf.h sshconnect.c
channels.c channels.h servconf.h servconf.c ssh.1 ssh-keyscan.c scp.1
sftp.1 sshd_config.5 readconf.c ssh.c misc.c]
Allow to set the rdomain in ssh/sftp/scp/sshd and ssh-keyscan.
ok markus@
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[ssh.c]
Request roaming to be enabled if UseRoaming is true and the server
supports it.
ok markus@
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[ssh.c]
allow for long home dir paths (bz #1615). ok deraadt
(based in part on a patch from jchadima at redhat)
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- markus@cvs.openbsd.org 2009/03/17 21:37:00
[ssh.c]
pass correct argv[0] to openlog(); ok djm@
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[canohost.c canohost.h channels.c channels.h clientloop.c readconf.c]
[readconf.h serverloop.c ssh.c]
support remote port forwarding with a zero listen port (-R0:...) to
dyamically allocate a listen port at runtime (this is actually
specified in rfc4254); bz#1003 ok markus@
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[clientloop.c misc.c readconf.c readconf.h servconf.c servconf.h]
[serverloop.c ssh-keyscan.c ssh.c sshd.c]
make a2port() return -1 when it encounters an invalid port number
rather than 0, which it will now treat as valid (needed for future work)
adjust current consumers of a2port() to check its return value is <= 0,
which in turn required some things to be converted from u_short => int
make use of int vs. u_short consistent in some other places too
feedback & ok markus@
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[clientloop.c readconf.c readconf.h ssh.c]
merge dynamic forward parsing into parse_forward(); 'i think this is OK' djm@
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[ssh.c]
add -y to usage();
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[ssh.1 ssh.c]
Add -y option to force logging via syslog rather than stderr.
Useful for daemonised ssh connection (ssh -f). Patch originally from
and ok'd by markus@
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