add knob to relax GSSAPI host credential check for
multihomed hosts bz#928, patch by Simon Wilkinson; ok dtucker
(kerberos/GSSAPI is not compiled by default on OpenBSD)
Upstream-ID: 15ddf1c6f7fd9d98eea9962f480079ae3637285d
add AuthorizedPrincipalsCommand that allows getting
authorized_principals from a subprocess rather than a file, which is quite
useful in deployments with large userbases
feedback and ok markus@
Upstream-ID: aa1bdac7b16fc6d2fa3524ef08f04c7258d247f6
support arguments to AuthorizedKeysCommand
bz#2081 loosely based on patch by Sami Hartikainen
feedback and ok markus@
Upstream-ID: b080387a14aa67dddd8ece67c00f268d626541f7
Document that the TERM environment variable is not
subject to SendEnv and AcceptEnv. bz#2386, based loosely on a patch from
jjelen at redhat, help and ok jmc@
Provide a warning about chroot misuses (which sadly, seem
to have become quite popular because shiny). sshd cannot detect/manage/do
anything about these cases, best we can do is warn in the right spot in the
man page. ok markus
add sshd_config HostbasedAcceptedKeyTypes and
PubkeyAcceptedKeyTypes options to allow sshd to control what public key types
will be accepted. Currently defaults to all. Feedback & ok markus@
mention ssh -Q feature to list supported { MAC, cipher,
KEX, key } algorithms in more places and include the query string used to
list the relevant information; bz#2288
remember which public keys have been used for
authentication and refuse to accept previously-used keys.
This allows AuthenticationMethods=publickey,publickey to require
that users authenticate using two _different_ pubkeys.
ok markus@
Add FingerprintHash option to control algorithm used for
key fingerprints. Default changes from MD5 to SHA256 and format from hex to
base64.
Feedback and ok naddy@ markus@
/dev/random has created the same effect as /dev/arandom
(and /dev/urandom) for quite some time. Mop up the last few, by using
/dev/random where we actually want it, or not even mentioning arandom where
it is irrelevant.
[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@
[servconf.c servconf.h session.c sshd.8 sshd_config.5]
Add a sshd_config PermitUserRC option to control whether ~/.ssh/rc is
executed, mirroring the no-user-rc authorized_keys option;
bz#2160; ok markus@
[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@
[readconf.c servconf.c ssh_config.5 sshd_config.5]
Disallow empty Match statements and add "Match all" which matches
everything. ok djm, man page help jmc@
[auth.h kex.h kexdhs.c kexecdhs.c kexgexs.c monitor.c servconf.c]
[servconf.h session.c sshd.c sshd_config.5]
add ssh-agent(1) support to sshd(8); allows encrypted hostkeys,
or hostkeys on smartcards; most of the work by Zev Weiss; bz #1974
ok djm@
[ssh-keygen.1 ssh.1 ssh_config.5 sshd.8 sshd_config.5]
do not use Sx for sections outwith the man page - ingo informs me that
stuff like html will render with broken links;
issue reported by Eric S. Raymond, via djm
[sshd_config.5 servconf.c servconf.h packet.c serverloop.c monitor.c sshd_config
sshd.c] Add RekeyLimit to sshd with the same syntax as the client allowing
rekeying based on traffic volume or time. ok djm@, help & ok jmc@ for the man
page.
[servconf.c sshd_config sshd_config.5]
Change default of MaxStartups to 10:30:100 to start doing random early
drop at 10 connections up to 100 connections. This will make it harder
to DoS as CPUs have come a long way since the original value was set
back in 2000. Prompted by nion at debian org, ok markus@
djm@openbsd.org
dtucker@openbsd.org
jmc@openbsd.org
deraadt@openbsd.org
sobrado@openbsd.org
Damien Miller
Darren Tucker