Commit Graph

35 Commits

Author SHA1 Message Date
djm@openbsd.org
bb956eaa94 upstream: pass most arguments to the KEX hash functions as sshbuf
rather than pointer+length; ok markus@

OpenBSD-Commit-ID: ef0c89c52ccc89817a13a5205725148a28492bf7
2019-01-23 13:02:02 +11:00
djm@openbsd.org
dec5e9d338 upstream: factor out kex_dh_compute_key() - it's shared between
plain DH KEX and DH GEX in both the client and server implementations

from markus@ ok djm@

OpenBSD-Commit-ID: 12186e18791fffcd4642c82e7e0cfdd7ea37e2ec
2019-01-21 21:47:28 +11:00
djm@openbsd.org
0a843d9a0e upstream: move client/server SSH-* banners to buffers under
ssh->kex and factor out the banner exchange. This eliminates some common code
from the client and server.

Also be more strict about handling \r characters - these should only
be accepted immediately before \n (pointed out by Jann Horn).

Inspired by a patch from Markus Schmidt.
(lots of) feedback and ok markus@

OpenBSD-Commit-ID: 1cc7885487a6754f63641d7d3279b0941890275b
2018-12-27 14:38:22 +11:00
Damien Miller
48f54b9d12 adapt -portable to OpenSSL 1.1x API
Polyfill missing API with replacement functions extracted from LibreSSL
2018-09-13 12:13:50 +10:00
markus@openbsd.org
57d10cbe86 upstream commit
adapt kex to sshbuf and struct ssh; ok djm@
2015-01-20 09:19:39 +11:00
Damien Miller
72ef7c148c support --without-openssl at configure time
Disables and removes dependency on OpenSSL. Many features don't
work and the set of crypto options is greatly restricted. This
will only work on system with native arc4random or /dev/urandom.

Considered highly experimental for now.
2015-01-15 02:28:36 +11:00
Damien Miller
b3051d01e5 - djm@cvs.openbsd.org 2014/01/09 23:20:00
[digest.c digest.h hostfile.c kex.c kex.h kexc25519.c kexc25519c.c]
     [kexc25519s.c kexdh.c kexecdh.c kexecdhc.c kexecdhs.c kexgex.c kexgexc.c]
     [kexgexs.c key.c key.h roaming_client.c roaming_common.c schnorr.c]
     [schnorr.h ssh-dss.c ssh-ecdsa.c ssh-rsa.c sshconnect2.c]
     Introduce digest API and use it to perform all hashing operations
     rather than calling OpenSSL EVP_Digest* directly. Will make it easier
     to build a reduced-feature OpenSSH without OpenSSL in future;
     feedback, ok markus@
2014-01-10 10:58:53 +11:00
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
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
19bb3a57f8 - djm@cvs.openbsd.org 2005/11/04 05:15:59
[kex.c kex.h kexdh.c kexdhc.c kexdhs.c kexgex.c kexgexc.c kexgexs.c]
     remove hardcoded hash lengths in key exchange code, allowing
     implementation of KEX methods with different hashes (e.g. SHA-256);
     ok markus@ dtucker@ stevesk@
2005-11-05 15:19:35 +11:00
Damien Miller
8e7fb33523 - markus@cvs.openbsd.org 2003/02/16 17:09:57
[kex.c kexdh.c kexgex.c kex.h sshconnect2.c sshd.c ssh-keyscan.c]
     split kex into client and server code, no need to link
     server code into the client; ok provos@
2003-02-24 12:03:03 +11:00
Ben Lindstrom
fcad1c92c9 - stevesk@cvs.openbsd.org 2002/03/24 17:27:03
[kexgex.c]
     typo; ok markus@
2002-03-26 02:20:06 +00:00
Ben Lindstrom
7a2073c50b - provos@cvs.openbsd.org 2002/03/18 17:50:31
[auth-bsdauth.c auth-options.c auth-rh-rsa.c auth-rsa.c auth-skey.c auth.h
      auth1.c auth2-chall.c auth2.c kex.c kex.h kexdh.c kexgex.c servconf.c
      session.h servconf.h serverloop.c session.c sshd.c]
     integrate privilege separated openssh; its turned off by default for now.
     work done by me and markus@

applied, but outside of ensure that smaller code bits migrated with
their owners.. no work was tried to 'fix' it to work. =)  Later project!
2002-03-22 02:30:41 +00:00
Damien Miller
3a5b023330 Stupid djm commits experimental code to head instead of branch
revert
2002-03-13 13:19:42 +11:00
Damien Miller
646e7cf3d7 Import of Niels Provos' 20020312 ssh-complete.diff
PAM, Cygwin and OSF SIA will not work for sure
2002-03-13 12:47:54 +11:00
Ben Lindstrom
80cb27dd7c - markus@cvs.openbsd.org 2002/02/28 15:46:33
[authfile.c kex.c kexdh.c kexgex.c key.c ssh-dss.c]
     add some const EVP_MD for openssl-0.9.7
2002-03-05 01:33:36 +00:00
Ben Lindstrom
90fd814f90 - markus@cvs.openbsd.org 2002/02/24 19:14:59
[auth2.c authfd.c authfd.h authfile.c kexdh.c kexgex.c key.c key.h
      ssh-dss.c ssh-dss.h ssh-keygen.c ssh-rsa.c ssh-rsa.h sshconnect2.c]
     signed vs. unsigned: make size arguments u_int, ok stevesk@
2002-02-26 18:09:42 +00:00
Ben Lindstrom
14519086e4 - markus@cvs.openbsd.org 2002/02/23 17:59:02
[kex.c kexdh.c kexgex.c]
     don't allow garbage after payload.
2002-02-26 17:58:29 +00:00
Damien Miller
9ab47eeb22 - markus@cvs.openbsd.org 2002/01/31 13:35:11
[kexdh.c kexgex.c]
     cross check announced key type and type from key blob
2002-02-05 12:19:52 +11:00
Damien Miller
3672e4bc7a - markus@cvs.openbsd.org 2002/01/25 22:07:40
[kex.c kexdh.c kexgex.c key.c mac.c]
     use EVP_MD_size(evp_md) and not evp_md->md_size; ok steveks@
2002-02-05 11:54:07 +11:00
Damien Miller
dff5099f13 - markus@cvs.openbsd.org 2001/12/28 14:50:54
[auth1.c auth-rsa.c channels.c dispatch.c kex.c kexdh.c kexgex.c packet.c packet.h serverloop.c session.c ssh.c sshconnect1.c sshconnect2.c sshd.c]
     packet_read* no longer return the packet length, since it's not used.
2002-01-22 23:16:32 +11:00
Damien Miller
d432ccf740 - markus@cvs.openbsd.org 2001/12/28 13:57:33
[auth1.c kexdh.c kexgex.c packet.c packet.h sshconnect1.c sshd.c]
     packet_get_bignum* no longer returns a size
2002-01-22 23:14:44 +11:00
Damien Miller
48b03fc546 - markus@cvs.openbsd.org 2001/12/27 20:39:58
[auth1.c auth-rsa.c channels.c clientloop.c packet.c packet.h serverloop.c session.c ssh.c sshconnect1.c sshd.c ttymodes.c]
     get rid of packet_integrity_check, use packet_done() instead.
2002-01-22 23:11:40 +11:00
Damien Miller
9ef95ddcaf - markus@cvs.openbsd.org 2001/12/27 19:37:23
[dh.c kexdh.c kexgex.c]
     always use BN_clear_free instead of BN_free
2002-01-22 23:10:33 +11:00
Damien Miller
da7551677b - markus@cvs.openbsd.org 2001/12/27 18:22:16
[auth1.c authfile.c auth-rsa.c dh.c kexdh.c kexgex.c key.c rsa.c scard.c ssh-agent.c sshconnect1.c sshd.c ssh-dss.c]
     call fatal() for openssl allocation failures
2002-01-22 23:09:22 +11:00
Ben Lindstrom
1c37c6a518 - deraadt@cvs.openbsd.org 2001/12/05 10:06:12
[authfd.c authfile.c bufaux.c channels.c compat.c kex.c kexgex.c
      key.c misc.c packet.c servconf.c ssh-agent.c sshconnect2.c
      sshconnect.c sshd.c ssh-dss.c ssh-keygen.c ssh-rsa.c]
     minor KNF
2001-12-06 18:00:18 +00:00
Ben Lindstrom
9e0ddd4379 - stevesk@cvs.openbsd.org 2001/09/17 19:27:15
[kexdh.c kexgex.c key.c key.h ssh-dss.c ssh-keygen.c ssh-rsa.c]
     u_char*/char* cleanup; ok markus
2001-09-18 05:41:19 +00:00
Ben Lindstrom
bba81213b9 - itojun@cvs.openbsd.org 2001/06/23 15:12:20
[auth1.c auth2.c auth2-chall.c authfd.c authfile.c auth-rhosts.c
      canohost.c channels.c cipher.c clientloop.c deattack.c dh.c
      hostfile.c kex.c kexdh.c kexgex.c key.c nchan.c packet.c radix.c
      readpass.c scp.c servconf.c serverloop.c session.c sftp.c
      sftp-client.c sftp-glob.c sftp-int.c sftp-server.c ssh-add.c
      ssh-agent.c ssh.c sshconnect1.c sshconnect2.c sshconnect.c sshd.c
      ssh-keygen.c ssh-keyscan.c]
     more strict prototypes.  raise warning level in Makefile.inc.
     markus ok'ed
     TODO; cleanup headers
2001-06-25 05:01:22 +00:00
Ben Lindstrom
d6481ea49a - markus@cvs.openbsd.org 2001/06/23 02:34:33
[kexdh.c kexgex.c kex.h pathnames.h readconf.c servconf.h ssh.1
      sshconnect1.c sshconnect2.c sshconnect.c sshconnect.h sshd.8]
     get rid of known_hosts2, use it for hostkey lookup, but do not
     modify.
2001-06-25 04:37:41 +00:00
Ben Lindstrom
664408d2a7 - markus@cvs.openbsd.org 2001/06/07 20:23:05
[authfd.c authfile.c channels.c kexdh.c kexgex.c packet.c ssh.c
      sshconnect.c sshconnect1.c]
     use xxx_put_cstring()
2001-06-09 01:42:01 +00:00
Ben Lindstrom
a3700050ec - markus@cvs.openbsd.org 2001/04/05 10:42:57
[auth-chall.c authfd.c channels.c clientloop.c kex.c kexgex.c key.c
      mac.c packet.c serverloop.c sftp-client.c sftp-client.h sftp-glob.c
      sftp-glob.h sftp-int.c sftp-server.c sftp.c ssh-keygen.c sshconnect.c
      sshconnect2.c sshd.c]
     fix whitespace: unexpand + trailing spaces.
2001-04-05 23:26:32 +00:00
Ben Lindstrom
8e312f3db0 - markus@cvs.openbsd.org 2001/04/04 22:04:35
[kex.c kexgex.c serverloop.c]
     parse full kexinit packet.
     make server-side more robust, too.
2001-04-04 23:50:21 +00:00
Ben Lindstrom
238abf6a14 - markus@cvs.openbsd.org 2001/04/04 09:48:35
[kex.c kex.h kexdh.c kexgex.c packet.c sshconnect2.c sshd.c]
     don't sent multiple kexinit-requests.
     send newkeys, block while waiting for newkeys.
     fix comments.
2001-04-04 17:52:53 +00:00
Ben Lindstrom
22b19b43e4 - (bal) Oops.. Missed including kexdh.c and kexgex.c in OpenBSD sync. 2001-04-04 17:39:19 +00:00