Commit Graph

31 Commits

Author SHA1 Message Date
djm@openbsd.org
03e3de416e
upstream: Start the process of splitting sshd into separate
binaries. This step splits sshd into a listener and a session binary. More
splits are planned.

After this changes, the listener binary will validate the configuration,
load the hostkeys, listen on port 22 and manage MaxStartups only. All
session handling will be performed by a new sshd-session binary that the
listener fork+execs.

This reduces the listener process to the minimum necessary and sets us
up for future work on the sshd-session binary.

feedback/ok markus@ deraadt@

NB. if you're updating via source, please restart sshd after installing,
otherwise you run the risk of locking yourself out.

OpenBSD-Commit-ID: 43c04a1ab96cdbdeb53d2df0125a6d42c5f19934
2024-05-17 14:41:35 +10:00
dtucker@openbsd.org
fc7f8f2188
upstream: Remove unused compat.h includes.
We've previously removed a lot of the really old compatibility code,
and with it went the need to include compat.h in most of the files that
have it.

OpenBSD-Commit-ID: 5af8baa194be00a3092d17598e88a5b29f7ea2b4
2023-03-05 19:27:31 +11:00
djm@openbsd.org
dbb339f015 upstream: prepare for multiple names for authmethods
allow authentication methods to have one additional name beyond their
primary name.

allow lookup by this synonym

Use primary name for authentication decisions, e.g. for
PermitRootLogin=publickey

Pass actual invoked name to the authmethods, so they can tell whether they
were requested via the their primary name or synonym.

ok markus@

OpenBSD-Commit-ID: 9e613fcb44b8168823195602ed3d09ffd7994559
2021-12-20 09:28:07 +11:00
djm@openbsd.org
816036f142 upstream: use the new variant log macros instead of prepending
__func__ and appending ssh_err(r) manually; ok markus@

OpenBSD-Commit-ID: 1f14b80bcfa85414b2a1a6ff714fb5362687ace8
2020-10-18 23:46:29 +11:00
markus@openbsd.org
c7d39ac8dc upstream: sshd: switch authentication to sshbuf API; ok djm@
OpenBSD-Commit-ID: 880aa06bce4b140781e836bb56bec34873290641
2018-07-10 15:27:43 +10:00
djm@openbsd.org
7c85685760 upstream: switch over to the new authorized_keys options API and
remove the legacy one.

Includes a fairly big refactor of auth2-pubkey.c to retain less state
between key file lines.

feedback and ok markus@

OpenBSD-Commit-ID: dece6cae0f47751b9892080eb13d6625599573df
2018-03-03 14:37:16 +11:00
markus@openbsd.org
eb272ea409 upstream commit
switch auth2 to ssh_dispatch API; ok djm@

Upstream-ID: a752ca19e2782900dd83060b5c6344008106215f
2017-05-31 10:50:33 +10:00
markus@openbsd.org
5a146bbd4f upstream commit
switch auth2-none.c to modern APIs; ok djm@

Upstream-ID: 07252b58e064d332214bcabbeae8e08c44b2001b
2017-05-31 10:50:20 +10:00
Damien Miller
7acefbbcbe - millert@cvs.openbsd.org 2014/07/15 15:54:14
[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@
2014-07-18 14:11:24 +10:00
Damien Miller
8668706d0f - djm@cvs.openbsd.org 2014/06/24 01:13:21
[Makefile.in auth-bsdauth.c auth-chall.c auth-options.c auth-rsa.c
     [auth2-none.c auth2-pubkey.c authfile.c authfile.h cipher-3des1.c
     [cipher-chachapoly.c cipher-chachapoly.h cipher.c cipher.h
     [digest-libc.c digest-openssl.c digest.h dns.c entropy.c hmac.h
     [hostfile.c key.c key.h krl.c monitor.c packet.c rsa.c rsa.h
     [ssh-add.c ssh-agent.c ssh-dss.c ssh-ecdsa.c ssh-ed25519.c
     [ssh-keygen.c ssh-pkcs11-client.c ssh-pkcs11-helper.c ssh-pkcs11.c
     [ssh-rsa.c sshbuf-misc.c sshbuf.h sshconnect.c sshconnect1.c
     [sshconnect2.c sshd.c sshkey.c sshkey.h
     [openbsd-compat/openssl-compat.c openbsd-compat/openssl-compat.h]
     New key API: refactor key-related functions to be more library-like,
     existing API is offered as a set of wrappers.

     with and ok markus@

     Thanks also to Ben Hawkes, David Tomaschik, Ivan Fratric, Matthew
     Dempsky and Ron Bowes for a detailed review a few months ago.

     NB. This commit also removes portable OpenSSH support for OpenSSL
     <0.9.8e.
2014-07-02 15:28:02 +10:00
Damien Miller
bda3ecafca - djm@cvs.openbsd.org 2010/06/25 08:46:17
[auth1.c auth2-none.c]
     skip the initial check for access with an empty password when
     PermitEmptyPasswords=no; bz#1638; ok markus@
2010-06-26 10:01:33 +10:00
Darren Tucker
9d86e5d570 - (dtucker) [auth-passwd.c auth1.c auth2-kbdint.c auth2-none.c auth2-passwd.c
auth2-pubkey.c session.c openbsd-compat/bsd-cygwin_util.{c,h}
   openbsd-compat/daemon.c] Remove support for Windows 95/98/ME and very old
   version of Cygwin.  Patch from vinschen at redhat com.
2009-03-08 11:40:27 +11:00
Darren Tucker
4230a5dc30 - djm@cvs.openbsd.org 2008/07/02 12:36:39
[auth2-none.c auth2.c]
     Make protocol 2 MaxAuthTries behaviour a little more sensible:
     Check whether client has exceeded MaxAuthTries before running
     an authentication method and skip it if they have, previously it
     would always allow one try (for "none" auth).
     Preincrement failure count before post-auth test - previously this
     checked and postincremented, also to allow one "none" try.
     Together, these two changes always count the "none" auth method
     which could be skipped by a malicious client (e.g. an SSH worm)
     to get an extra attempt at a real auth method. They also make
     MaxAuthTries=0 a useful way to block users entirely (esp. in a
     sshd_config Match block).
     Also, move sending of any preauth banner from "none" auth method
     to the first call to input_userauth_request(), so worms that skip
     the "none" method get to see it too.
2008-07-02 22:56:09 +10:00
Damien Miller
4890e53977 - djm@cvs.openbsd.org 2007/08/23 03:22:16
[auth2-none.c sshd_config sshd_config.5]
     Support "Banner=none" to disable displaying of the pre-login banner;
     ok dtucker@ deraadt@
2007-09-17 11:57:38 +10:00
Damien Miller
ded319cca2 - (djm) [audit-bsm.c audit.c auth-bsdauth.c auth-chall.c auth-pam.c]
[auth-rsa.c auth-shadow.c auth-sia.c auth1.c auth2-chall.c]
   [auth2-gss.c auth2-kbdint.c auth2-none.c authfd.c authfile.c]
   [cipher-3des1.c cipher-aes.c cipher-bf1.c cipher-ctr.c clientloop.c]
   [dh.c dns.c entropy.c gss-serv-krb5.c gss-serv.c hostfile.c kex.c]
   [kexdhc.c kexdhs.c kexgexc.c kexgexs.c key.c loginrec.c mac.c]
   [md5crypt.c monitor.c monitor_wrap.c readconf.c rsa.c]
   [scard-opensc.c scard.c session.c ssh-add.c ssh-agent.c ssh-dss.c]
   [ssh-keygen.c ssh-keysign.c ssh-rsa.c ssh.c sshconnect.c]
   [sshconnect1.c sshconnect2.c sshd.c rc4.diff]
   [openbsd-compat/bsd-cray.c openbsd-compat/port-aix.c]
   [openbsd-compat/port-linux.c openbsd-compat/port-solaris.c]
   [openbsd-compat/port-uw.c]
   Lots of headers for SCO OSR6, mainly adding stdarg.h for log.h;
   compile problems reported by rac AT tenzing.org
2006-09-01 15:38:36 +10:00
Darren Tucker
1a3d6e7bdd - dtucker@cvs.openbsd.org 2006/08/05 07:52:52
[auth2-none.c sshd.c monitor_wrap.c]
     Add headers required to build with KERBEROS5=no.  ok djm@
2006-08-05 18:46:47 +10:00
Damien Miller
75bb664458 - (djm) [auth-pam.c auth-shadow.c auth2-none.c cleanup.c sshd.c]
[openbsd-compat/port-tun.c openbsd-compat/port-tun.h] Sprinkle more
   includes for Linux in
2006-08-05 14:07:20 +10:00
Damien Miller
d783435315 - deraadt@cvs.openbsd.org 2006/08/03 03:34:42
[OVERVIEW atomicio.c atomicio.h auth-bsdauth.c auth-chall.c auth-krb5.c]
     [auth-options.c auth-options.h auth-passwd.c auth-rh-rsa.c auth-rhosts.c]
     [auth-rsa.c auth-skey.c auth.c auth.h auth1.c auth2-chall.c auth2-gss.c]
     [auth2-hostbased.c auth2-kbdint.c auth2-none.c auth2-passwd.c ]
     [auth2-pubkey.c auth2.c authfd.c authfd.h authfile.c bufaux.c bufbn.c]
     [buffer.c buffer.h canohost.c channels.c channels.h cipher-3des1.c]
     [cipher-bf1.c cipher-ctr.c cipher.c cleanup.c clientloop.c compat.c]
     [compress.c deattack.c dh.c dispatch.c dns.c dns.h fatal.c groupaccess.c]
     [groupaccess.h gss-genr.c gss-serv-krb5.c gss-serv.c hostfile.c kex.c]
     [kex.h kexdh.c kexdhc.c kexdhs.c kexgex.c kexgexc.c kexgexs.c key.c]
     [key.h log.c log.h mac.c match.c md-sha256.c misc.c misc.h moduli.c]
     [monitor.c monitor_fdpass.c monitor_mm.c monitor_mm.h monitor_wrap.c]
     [monitor_wrap.h msg.c nchan.c packet.c progressmeter.c readconf.c]
     [readconf.h readpass.c rsa.c scard.c scard.h scp.c servconf.c servconf.h]
     [serverloop.c session.c session.h sftp-client.c sftp-common.c]
     [sftp-common.h sftp-glob.c sftp-server.c sftp.c ssh-add.c ssh-agent.c]
     [ssh-dss.c ssh-gss.h ssh-keygen.c ssh-keyscan.c ssh-keysign.c ssh-rsa.c]
     [ssh.c ssh.h sshconnect.c sshconnect.h sshconnect1.c sshconnect2.c]
     [sshd.c sshlogin.c sshlogin.h sshpty.c sshpty.h sshtty.c ttymodes.c]
     [uidswap.c uidswap.h uuencode.c uuencode.h xmalloc.c xmalloc.h]
     [loginrec.c loginrec.h openbsd-compat/port-aix.c openbsd-compat/port-tun.h]
     almost entirely get rid of the culture of ".h files that include .h files"
     ok djm, sort of ok stevesk
     makes the pain stop in one easy step
     NB. portable commit contains everything *except* removing includes.h, as
     that will take a fair bit more work as we move headers that are required
     for portability workarounds to defines.h. (also, this step wasn't "easy")
2006-08-05 12:39:39 +10:00
Damien Miller
57cf638577 - stevesk@cvs.openbsd.org 2006/07/09 15:15:11
[auth2-none.c authfd.c authfile.c includes.h misc.c monitor.c]
     [readpass.c scp.c serverloop.c sftp-client.c sftp-server.c]
     [ssh-add.c ssh-agent.c ssh-keygen.c ssh-keysign.c ssh.c sshd.c]
     [sshlogin.c sshpty.c]
     move #include <fcntl.h> out of includes.h
2006-07-10 21:13:46 +10:00
Damien Miller
57c30117c1 - djm@cvs.openbsd.org 2006/03/25 13:17:03
[atomicio.c auth-bsdauth.c auth-chall.c auth-options.c auth-passwd.c]
     [auth-rh-rsa.c auth-rhosts.c auth-rsa.c auth-skey.c auth.c auth1.c]
     [auth2-chall.c auth2-hostbased.c auth2-kbdint.c auth2-none.c]
     [auth2-passwd.c auth2-pubkey.c auth2.c authfd.c authfile.c bufaux.c]
     [buffer.c canohost.c channels.c cipher-3des1.c cipher-bf1.c]
     [cipher-ctr.c cipher.c cleanup.c clientloop.c compat.c compress.c]
     [deattack.c dh.c dispatch.c fatal.c groupaccess.c hostfile.c kex.c]
     [kexdh.c kexdhc.c kexdhs.c kexgex.c kexgexc.c kexgexs.c key.c log.c]
     [mac.c match.c md-sha256.c misc.c monitor.c monitor_fdpass.c]
     [monitor_mm.c monitor_wrap.c msg.c nchan.c packet.c progressmeter.c]
     [readconf.c readpass.c rsa.c scard.c scp.c servconf.c serverloop.c]
     [session.c sftp-client.c sftp-common.c sftp-glob.c sftp-server.c]
     [sftp.c ssh-add.c ssh-agent.c ssh-dss.c ssh-keygen.c ssh-keyscan.c]
     [ssh-keysign.c ssh-rsa.c ssh.c sshconnect.c sshconnect1.c]
     [sshconnect2.c sshd.c sshlogin.c sshpty.c sshtty.c ttymodes.c]
     [uidswap.c uuencode.c xmalloc.c]
     Put $OpenBSD$ tags back (as comments) to replace the RCSID()s that
     Theo nuked - our scripts to sync -portable need them in the files
2006-03-26 14:24:48 +11:00
Damien Miller
b0fb6872ed - deraadt@cvs.openbsd.org 2006/03/19 18:51:18
[atomicio.c auth-bsdauth.c auth-chall.c auth-krb5.c auth-options.c]
     [auth-pam.c auth-passwd.c auth-rh-rsa.c auth-rhosts.c auth-rsa.c]
     [auth-shadow.c auth-skey.c auth.c auth1.c auth2-chall.c]
     [auth2-hostbased.c auth2-kbdint.c auth2-none.c auth2-passwd.c]
     [auth2-pubkey.c auth2.c authfd.c authfile.c bufaux.c buffer.c]
     [canohost.c channels.c cipher-3des1.c cipher-acss.c cipher-aes.c]
     [cipher-bf1.c cipher-ctr.c cipher.c cleanup.c clientloop.c compat.c]
     [compress.c deattack.c dh.c dispatch.c dns.c entropy.c fatal.c]
     [groupaccess.c hostfile.c includes.h kex.c kexdh.c kexdhc.c]
     [kexdhs.c kexgex.c kexgexc.c kexgexs.c key.c log.c loginrec.c]
     [loginrec.h logintest.c mac.c match.c md-sha256.c md5crypt.c misc.c]
     [monitor.c monitor_fdpass.c monitor_mm.c monitor_wrap.c msg.c]
     [nchan.c packet.c progressmeter.c readconf.c readpass.c rsa.c]
     [scard.c scp.c servconf.c serverloop.c session.c sftp-client.c]
     [sftp-common.c sftp-glob.c sftp-server.c sftp.c ssh-add.c]
     [ssh-agent.c ssh-dss.c ssh-keygen.c ssh-keyscan.c ssh-keysign.c]
     [ssh-rand-helper.c ssh-rsa.c ssh.c sshconnect.c sshconnect1.c]
     [sshconnect2.c sshd.c sshlogin.c sshpty.c sshtty.c ttymodes.c]
     [uidswap.c uuencode.c xmalloc.c openbsd-compat/bsd-arc4random.c]
     [openbsd-compat/bsd-closefrom.c openbsd-compat/bsd-cygwin_util.c]
     [openbsd-compat/bsd-getpeereid.c openbsd-compat/bsd-misc.c]
     [openbsd-compat/bsd-nextstep.c openbsd-compat/bsd-snprintf.c]
     [openbsd-compat/bsd-waitpid.c openbsd-compat/fake-rfc2553.c]
     RCSID() can die
2006-03-26 00:03:21 +11:00
Damien Miller
f17883e6a0 - stevesk@cvs.openbsd.org 2006/02/20 17:02:44
[clientloop.c includes.h monitor.c progressmeter.c scp.c]
     [serverloop.c session.c sftp.c ssh-agent.c ssh.c sshd.c]
     move #include <signal.h> out of includes.h; ok markus@
2006-03-15 11:45:54 +11:00
Darren Tucker
77fc29eeb3 - (dtucker) [auth-pam.c auth.h auth2-none.c auth2.c monitor.c monitor_wrap.c]
Bug #892: Send messages from failing PAM account modules to the client via
   SSH2_MSG_USERAUTH_BANNER messages.  Note that this will not happen with
   SSH2 kbdint authentication, which need to be dealt with separately.  ok djm@
2004-09-11 23:07:03 +10:00
Damien Miller
4765679649 - (djm) [auth2-kbdint.c auth2-none.c auth2-passwd.c auth2-pubkey.c]
Make cygwin code more consistent with that which surrounds it
2004-09-11 22:42:09 +10:00
Darren Tucker
1f8311c836 - deraadt@cvs.openbsd.org 2004/05/11 19:01:43
[auth.c auth2-none.c authfile.c channels.c monitor.c monitor_mm.c
     packet.c packet.h progressmeter.c session.c openbsd-compat/xmmap.c]
     improve some code lint did not like; djm millert ok
2004-05-13 16:39:33 +10:00
Damien Miller
856f0be669 - markus@cvs.openbsd.org 2003/08/26 09:58:43
[auth-passwd.c auth.c auth.h auth1.c auth2-none.c auth2-passwd.c]
     [auth2.c monitor.c]
     fix passwd auth for 'username leaks via timing'; with djm@, original
     patches from solar
2003-09-03 07:32:45 +10:00
Darren Tucker
4b60966863 - markus@cvs.openbsd.org 2003/07/31 09:21:02
[auth2-none.c]
     check whether passwd auth is allowd, similar to proto 1; rob@pitman.co.za
     ok henning
2003-08-03 00:05:01 +10:00
Damien Miller
eab4bae038 - (djm) Add back radix.o (used by AFS support), after it went missing from
Makefile many moons ago
 - (djm) Apply "owl-always-auth" patch from Openwall/Solar Designer
 - (djm) Fix blibpath specification for AIX/gcc
 - (djm) Some systems have basename in -lgen. Fix from ayamura@ayamura.org
2003-04-29 23:22:40 +10:00
Ben Lindstrom
eec16fcb27 - deraadt@cvs.openbsd.org 2002/06/27 10:35:47
[auth2-none.c monitor.c sftp-client.c]
     use xfree()
2002-07-04 00:06:15 +00:00
Ben Lindstrom
cb72e4f6d2 - deraadt@cvs.openbsd.org 2002/06/19 00:27:55
[auth-bsdauth.c auth-skey.c auth1.c auth2-chall.c auth2-none.c authfd.c
      authfd.h monitor_wrap.c msg.c nchan.c radix.c readconf.c scp.c sftp.1
      ssh-add.1 ssh-add.c ssh-agent.1 ssh-agent.c ssh-keygen.1 ssh-keygen.c
      ssh-keysign.c ssh.1 sshconnect.c sshconnect.h sshconnect2.c ttymodes.c
      xmalloc.h]
     KNF done automatically while reading....
2002-06-21 00:41:51 +00:00
Ben Lindstrom
855bf3ac3c - markus@cvs.openbsd.org 2002/05/25 18:51:07
[auth.h auth2.c auth2-hostbased.c auth2-kbdint.c auth2-none.c
      auth2-passwd.c auth2-pubkey.c Makefile.in]
     split auth2.c into one file per method; ok provos@/deraadt@

NOTE: Merged back noticable cygwin and pam stuff.  May need review to
ensure I did not miss anything.
2002-06-06 20:27:55 +00:00