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2013-05-16 - dtucker@cvs.openbsd.org 2013/05/16 04:09:14Darren Tucker
[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.
2013-04-23 - dtucker@cvs.openbsd.org 2013/04/07 02:10:33Damien Miller
[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@
2013-04-23 - markus@cvs.openbsd.org 2013/04/06 16:07:00Damien Miller
[channels.c sshd.c] handle ECONNABORTED for accept(); ok deraadt some time ago...
2013-02-12 - dtucker@cvs.openbsd.org 2013/02/11 21:21:58Damien Miller
[sshd.c] Add openssl version to debug output similar to the client. ok markus@
2012-11-04 - djm@cvs.openbsd.org 2012/11/04 11:09:15Damien Miller
[auth.h auth1.c auth2.c monitor.c servconf.c servconf.h sshd.c] [sshd_config.5] Support multiple required authentication via an AuthenticationMethods option. This option lists one or more comma-separated lists of authentication method names. Successful completion of all the methods in any list is required for authentication to complete; feedback and ok markus@
2012-11-04 - djm@cvs.openbsd.org 2012/11/04 10:38:43Damien Miller
[auth2-pubkey.c sshd.c sshd_config.5] Remove default of AuthorizedCommandUser. Administrators are now expected to explicitly specify a user. feedback and ok markus@
2012-10-31 - djm@cvs.openbsd.org 2012/10/30 21:29:55Damien Miller
[auth-rsa.c auth.c auth.h auth2-pubkey.c servconf.c servconf.h] [sshd.c sshd_config sshd_config.5] new sshd_config option AuthorizedKeysCommand to support fetching authorized_keys from a command in addition to (or instead of) from the filesystem. The command is run as the target server user unless another specified via a new AuthorizedKeysCommandUser option. patch originally by jchadima AT redhat.com, reworked by me; feedback and ok markus@
2012-07-31 - djm@cvs.openbsd.org 2012/07/10 02:19:15Damien Miller
[servconf.c servconf.h sshd.c sshd_config] Turn on systrace sandboxing of pre-auth sshd by default for new installs by shipping a config that overrides the current UsePrivilegeSeparation=yes default. Make it easier to flip the default in the future by adding too.
2012-07-02 - markus@cvs.openbsd.org 2012/06/30 14:35:09Darren Tucker
[sandbox-systrace.c sshd.c] fix a during the load of the sandbox policies (child can still make the read-syscall and wait forever for systrace-answers) by replacing the read/write synchronisation with SIGSTOP/SIGCONT; report and help hshoexer@; ok djm@, dtucker@
2012-05-19- (dtucker) OpenBSD CVS SyncDarren Tucker
- dtucker@cvs.openbsd.org 2012/05/13 01:42:32 [servconf.h servconf.c sshd.8 sshd.c auth.c sshd_config.5] Add "Match LocalAddress" and "Match LocalPort" to sshd and adjust tests to match. Feedback and ok djm@ markus@.
2012-04-22 - djm@cvs.openbsd.org 2012/04/12 02:42:32Damien Miller
[servconf.c servconf.h sshd.c sshd_config sshd_config.5] VersionAddendum option to allow server operators to append some arbitrary text to the SSH-... banner; ok deraadt@ "don't care" markus@
2012-04-22 - djm@cvs.openbsd.org 2012/04/11 13:26:40Damien Miller
[sshd.c] don't spin in accept() when out of fds (ENFILE/ENFILE) - back off for a while; ok deraadt@ markus@
2012-02-14 - (tim) [openbsd-compat/bsd-misc.h sshd.c] Fix conflicting return type forTim Rice
unsetenv due to rev 1.14 change to setenv.c. Cast unsetenv to void in sshd.c ok dtucker@
2011-10-02 - djm@cvs.openbsd.org 2011/09/30 21:22:49Darren Tucker
[sshd.c] fix inverted test that caused logspam; spotted by henning@
2011-10-02 - djm@cvs.openbsd.org 2011/09/25 05:44:47Darren Tucker
[auth2-pubkey.c] improve the AuthorizedPrincipalsFile debug log message to include file and line number
2011-09-22 - djm@cvs.openbsd.org 2011/09/09 22:38:21Damien Miller
[sshd.c] kill the preauth privsep child on fatal errors in the monitor; ok markus@
2011-06-23 - djm@cvs.openbsd.org 2011/06/23 09:34:13Damien Miller
[sshd.c ssh-sandbox.h sandbox.h sandbox-rlimit.c sandbox-systrace.c] [sandbox-null.c] rename sandbox.h => ssh-sandbox.h to make things easier for portable
2011-06-23 - djm@cvs.openbsd.org 2011/06/22 21:57:01Damien Miller
[servconf.c servconf.h sshd.c sshd_config.5 sandbox-rlimit.c] [sandbox-systrace.c sandbox.h configure.ac Makefile.in] introduce sandboxing of the pre-auth privsep child using systrace(4). This introduces a new "UsePrivilegeSeparation=sandbox" option for sshd_config that applies mandatory restrictions on the syscalls the privsep child can perform. This prevents a compromised privsep child from being used to attack other hosts (by opening sockets and proxying) or probing local kernel attack surface. The sandbox is implemented using systrace(4) in unsupervised "fast-path" mode, where a list of permitted syscalls is supplied. Any syscall not on the list results in SIGKILL being sent to the privsep child. Note that this requires a kernel with the new SYSTR_POLICY_KILL option. UsePrivilegeSeparation=sandbox will become the default in the future so please start testing it now. feedback dtucker@; ok markus@
2011-06-20 - djm@cvs.openbsd.org 2011/06/17 21:44:31Damien Miller
[log.c log.h monitor.c monitor.h monitor_wrap.c monitor_wrap.h sshd.c] make the pre-auth privsep slave log via a socketpair shared with the monitor rather than /var/empty/dev/log; ok dtucker@ deraadt@ markus@
2011-05-05 - djm@cvs.openbsd.org 2011/04/12 05:32:49Damien Miller
[sshd.c] exit with 0 status on SIGTERM; bz#1879
2011-05-05 - (djm) [Makefile.in WARNING.RNG aclocal.m4 buildpkg.sh.in configure.ac]Damien Miller
[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.
2011-01-11 - djm@cvs.openbsd.org 2011/01/11 06:13:10Damien Miller
[clientloop.c ssh-keygen.c sshd.c] some unsigned long long casts that make things a bit easier for portable without resorting to dropping PRIu64 formats everywhere
2010-09-24 - djm@cvs.openbsd.org 2010/09/22 05:01:30Damien Miller
[kex.c kex.h kexecdh.c kexecdhc.c kexecdhs.c readconf.c readconf.h] [servconf.c servconf.h ssh_config.5 sshconnect2.c sshd.c sshd_config.5] add a KexAlgorithms knob to the client and server configuration to allow selection of which key exchange methods are used by ssh(1) and sshd(8) and their order of preference. ok markus@
2010-09-10 - djm@cvs.openbsd.org 2010/08/31 12:33:38Damien Miller
[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
2010-08-31 - djm@cvs.openbsd.org 2010/08/31 11:54:45Damien Miller
[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@
2010-08-31 - djm@cvs.openbsd.org 2010/08/16 04:06:06Damien Miller
[ssh-add.c ssh-agent.c ssh-keygen.c ssh-keysign.c ssh.c sshd.c] backout previous temporarily; discussed with deraadt@
2010-08-31 - tedu@cvs.openbsd.org 2010/08/12 23:34:39Damien Miller
[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
2010-04-16 - djm@cvs.openbsd.org 2010/04/16 01:47:26Damien Miller
[PROTOCOL.certkeys auth-options.c auth-options.h auth-rsa.c] [auth2-pubkey.c authfd.c key.c key.h myproposal.h ssh-add.c] [ssh-agent.c ssh-dss.c ssh-keygen.1 ssh-keygen.c ssh-rsa.c] [sshconnect.c sshconnect2.c sshd.c] revised certificate format ssh-{dss,rsa}-cert-v01@openssh.com with the following changes: move the nonce field to the beginning of the certificate where it can better protect against chosen-prefix attacks on the signature hash Rename "constraints" field to "critical options" Add a new non-critical "extensions" field Add a serial number The older format is still support for authentication and cert generation (use "ssh-keygen -t v00 -s ca_key ..." to generate a v00 certificate) ok markus@
2010-03-07 - dtucker@cvs.openbsd.org 2010/03/07 11:57:13Darren Tucker
[auth-rhosts.c monitor.c monitor_wrap.c session.c auth-options.c sshd.c] Hold authentication debug messages until after successful authentication. Fixes an info leak of environment variables specified in authorized_keys, reported by Jacob Appelbaum. ok djm@
2010-02-27 - OpenBSD CVS SyncDamien Miller
- 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@
2010-01-30 - djm@cvs.openbsd.org 2010/01/29 00:20:41Damien Miller
[sshd.c] set FD_CLOEXEC on sock_in/sock_out; bz#1706 from jchadima AT redhat.com ok dtucker@
2010-01-13 - djm@cvs.openbsd.org 2010/01/13 03:48:13Darren Tucker
[servconf.c servconf.h sshd.c] avoid run-time failures when specifying hostkeys via a relative path by prepending the cwd in these cases; bz#1290; ok dtucker@
2010-01-10 - dtucker@cvs.openbsd.org 2010/01/09 23:04:13Darren Tucker
[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@
2010-01-09 - dtucker@cvs.openbsd.org 2010/01/09 11:17:56Darren Tucker
[sshd.c] Afer sshd receives a SIGHUP, ignore subsequent HUPs while sshd re-execs itself. Prevents two HUPs in quick succession from resulting in sshd dying. bz#1692, patch from Colin Watson via Ubuntu.
2010-01-08 - reyk@cvs.openbsd.org 2009/10/28 16:38:18Darren Tucker
[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@
2009-12-08 - (dtucker) Bug #1470: Disable OOM-killing of the listening sshd on Linux,Darren Tucker
based on a patch from Vaclav Ovsik and Colin Watson. ok djm.
2009-11-18 - (djm) [channels.c misc.c misc.h sshd.c] add missing setsockopt() toDamien Miller
set IPV6_V6ONLY for local forwarding with GatwayPorts=yes. Unify setting IPV6_V6ONLY behind a new function misc.c:sock_set_v6only() report and fix from jan.kratochvil AT redhat.com
2009-06-21 - (dtucker) [servconf.c sshd.c] More whitespace sync.Darren Tucker
2009-06-21 - andreas@cvs.openbsd.org 2009/05/28 16:50:16Darren Tucker
[sshd.c packet.c serverloop.c monitor_wrap.c clientloop.c sshconnect.c monitor.c Added roaming.h roaming_common.c roaming_dummy.c] Keep track of number of bytes read and written. Needed for upcoming changes. Most code from Martin Forssen, maf at appgate dot com. ok markus@ Also, applied appropriate changes to Makefile.in
2009-01-28 - djm@cvs.openbsd.org 2009/01/22 10:02:34Damien Miller
[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@
2008-11-03 - stevesk@cvs.openbsd.org 2008/10/30 19:31:16Damien Miller
[clientloop.c sshd.c] don't need to #include "monitor_fdpass.h"
2008-07-11 - markus@cvs.openbsd.org 2008/07/10 18:08:11Damien Miller
[clientloop.c monitor.c monitor_wrap.c packet.c packet.h sshd.c] sync v1 and v2 traffic accounting; add it to sshd, too; ok djm@, dtucker@
2008-07-04 - (djm) [atomicio.c channels.c clientloop.c defines.h includes.h]Damien Miller
[packet.c scp.c serverloop.c sftp-client.c ssh-agent.c ssh-keyscan.c] [sshd.c] Explicitly handle EWOULDBLOCK wherever we handle EAGAIN, on some platforms (HP nonstop) it is a distinct errno; bz#1467 reported by sconeu AT yahoo.com; ok dtucker@
2008-07-02 - dtucker@cvs.openbsd.org 2008/07/01 07:24:22Darren Tucker
[sshconnect.c sshd.c] Send CR LF during protocol banner exchanges, but only for Protocol 2 only, in order to comply with RFC 4253. bz #1443, ok djm@
2008-06-16 - dtucker@cvs.openbsd.org 2008/06/14 17:07:11Damien Miller
[sshd.c] ensure default umask disallows at least group and world write; ok djm@
2008-06-16 - OpenBSD CVS SyncDamien Miller
- dtucker@cvs.openbsd.org 2008/06/14 15:49:48 [sshd.c] wrap long line at 80 chars
2008-06-13 - dtucker@cvs.openbsd.org 2008/06/12 20:38:28Darren Tucker
[sshd.c sshconnect.c packet.h misc.c misc.h packet.c] Make keepalive timeouts apply while waiting for a packet, particularly during key renegotiation (bz #1363). With djm and Matt Day, ok djm@
2008-06-10 - jmc@cvs.openbsd.org 2008/06/10 08:17:40Darren Tucker
[sshd.8 sshd.c] - update usage() - fix SYNOPSIS, and sort options - some minor additional fixes
2008-06-10 - dtucker@cvs.openbsd.org 2008/06/10 04:50:25Darren Tucker
[sshd.c channels.h channels.c log.c servconf.c log.h servconf.h sshd.8] Add extended test mode (-T) and connection parameters for test mode (-C). -T causes sshd to write its effective configuration to stdout and exit. -C causes any relevant Match rules to be applied before output. The combination allows tesing of the parser and config files. ok deraadt djm
2008-05-19 - djm@cvs.openbsd.org 2008/05/08 12:02:23Damien Miller
[auth-options.c auth1.c channels.c channels.h clientloop.c gss-serv.c] [monitor.c monitor_wrap.c nchan.c servconf.c serverloop.c session.c] [ssh.c sshd.c] Implement a channel success/failure status confirmation callback mechanism. Each channel maintains a queue of callbacks, which will be drained in order (RFC4253 guarantees confirm messages are not reordered within an channel). Also includes a abandonment callback to clean up if a channel is closed without sending confirmation messages. This probably shouldn't happen in compliant implementations, but it could be abused to leak memory. ok markus@ (as part of a larger diff)
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