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username is available currently. In the client this is via %i, in the server
%U (since %i was already used in the client in some places for this, but used
for something different in the server); bz#2870, ok dtucker@
OpenBSD-Commit-ID: c7e912b0213713316cb55db194b3a6415b3d4b95
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functionality; bz#2869 ok dtucker@
OpenBSD-Commit-ID: 1c06ee08eb78451b5837fcfd8cbebc5ff3a67a01
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previously labeled for sendind. bz#1285 ok dtucker@
OpenBSD-Commit-ID: f6fec9e3d0f366f15903094fbe1754cb359a0df9
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from Jakub Jelen via bz2835
OpenBSD-Commit-ID: 5970adadf6ef206bee0dddfc75d24c2019861446
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interactive and CS1 for bulk
AF21 was selected as this is the highest priority within the low-latency
service class (and it is higher than what we have today). SSH is elastic
and time-sensitive data, where a user is waiting for a response via the
network in order to continue with a task at hand. As such, these flows
should be considered foreground traffic, with delays or drops to such
traffic directly impacting user-productivity.
For bulk SSH traffic, the CS1 "Lower Effort" marker was chosen to enable
networks implementing a scavanger/lower-than-best effort class to
discriminate scp(1) below normal activities, such as web surfing. In
general this type of bulk SSH traffic is a background activity.
An advantage of using "AF21" for interactive SSH and "CS1" for bulk SSH
is that they are recognisable values on all common platforms (IANA
https://www.iana.org/assignments/dscp-registry/dscp-registry.xml), and
for AF21 specifically a definition of the intended behavior exists
https://tools.ietf.org/html/rfc4594#section-4.7 in addition to the definition
of the Assured Forwarding PHB group https://tools.ietf.org/html/rfc2597, and
for CS1 (Lower Effort) there is https://tools.ietf.org/html/rfc3662
The first three bits of "AF21" map to the equivalent IEEEE 802.1D PCP, IEEE
802.11e, MPLS EXP/CoS and IP Precedence value of 2 (also known as "Immediate",
or "AC_BE"), and CS1's first 3 bits map to IEEEE 802.1D PCP, IEEE 802.11e,
MPLS/CoS and IP Precedence value 1 ("Background" or "AC_BK").
OK deraadt@, "no objection" djm@
OpenBSD-Commit-ID: d11d2a4484f461524ef0c20870523dfcdeb52181
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Hash-Based Signatures) The code is not compiled in by default (see WITH_XMSS
in Makefile.inc) Joint work with stefan-lukas_gazdag at genua.eu See
https://tools.ietf.org/html/draft-irtf-cfrg-xmss-hash-based-signatures-12 ok
djm@
OpenBSD-Commit-ID: ef3eccb96762a5d6f135d7daeef608df7776a7ac
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command-line argument to ssh(1) that directs it to bind its outgoing
connection to the address of the specified network interface.
BindInterface prefers to use addresses that aren't loopback or link-
local, but will fall back to those if no other addresses of the
required family are available on that interface.
Based on patch by Mike Manning in bz#2820, ok dtucker@
OpenBSD-Commit-ID: c5064d285c2851f773dd736a2c342aa384fbf713
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Replace atoi and strtol conversions for integer arguments
to config keywords with a checking wrapper around strtonum. This will
prevent and flag invalid and negative arguments to these keywords. ok djm@
OpenBSD-Commit-ID: 99ae3981f3d608a219ccb8d2fff635ae52c17998
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Add URI support to ssh, sftp and scp. For example
ssh://user@host or sftp://user@host/path. The connection parameters
described in draft-ietf-secsh-scp-sftp-ssh-uri-04 are not implemented since
the ssh fingerprint format in the draft uses md5 with no way to specify the
hash function type. OK djm@
Upstream-ID: 4ba3768b662d6722de59e6ecb00abf2d4bf9cacc
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Add 'reverse' dynamic forwarding which combines dynamic
forwarding (-D) with remote forwarding (-R) where the remote-forwarded port
expects SOCKS-requests.
The SSH server code is unchanged and the parsing happens at the SSH
clients side. Thus the full SOCKS-request is sent over the forwarded
channel and the client parses c->output. Parsing happens in
channel_before_prepare_select(), _before_ the select bitmask is
computed in the pre[] handlers, but after network input processing
in the post[] handlers.
help and ok djm@
Upstream-ID: aa25a6a3851064f34fe719e0bf15656ad5a64b89
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Expand ssh_config's StrictModes option with two new
settings:
StrictModes=accept-new will automatically accept hitherto-unseen keys
but will refuse connections for changed or invalid hostkeys.
StrictModes=off is the same as StrictModes=no
Motivation:
StrictModes=no combines two behaviours for host key processing:
automatically learning new hostkeys and continuing to connect to hosts
with invalid/changed hostkeys. The latter behaviour is quite dangerous
since it removes most of the protections the SSH protocol is supposed to
provide.
Quite a few users want to automatically learn hostkeys however, so
this makes that feature available with less danger.
At some point in the future, StrictModes=no will change to be a synonym
for accept-new, with its current behaviour remaining available via
StrictModes=off.
bz#2400, suggested by Michael Samuel; ok markus
Upstream-ID: 0f55502bf75fc93a74fb9853264a8276b9680b64
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Add RemoteCommand option to specify a command in the
ssh config file instead of giving it on the client's command line. This
command will be executed on the remote host. The feature allows to automate
tasks using ssh config. OK markus@
Upstream-ID: 5d982fc17adea373a9c68cae1021ce0a0904a5ee
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there's no reason to artificially limit the key path
here, just check that it fits PATH_MAX; spotted by Matthew Patton
Upstream-ID: 858addaf2009c9cf04d80164a41b2088edb30b58
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remove SSHv1 configuration options and man pages bits
ok markus@
Upstream-ID: 84638c23546c056727b7a7d653c72574e0f19424
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remove SSHv1 ciphers; ok markus@
Upstream-ID: e5ebc5e540d7f23a8c1266db1839794d4d177890
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remove options.protocol and client Protocol
configuration knob
ok markus@
Upstream-ID: 5a967f5d06e2d004b0235457b6de3a9a314e9366
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unifdef WITH_SSH1 ok markus@
Upstream-ID: 9716e62a883ef8826c57f4d33b4a81a9cc7755c7
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Add SyslogFacility option to ssh(1) matching the
equivalent option in sshd(8). bz#2705, patch from erahn at arista.com, ok
djm@
Upstream-ID: d5115c2c0193ceb056ed857813b2a7222abda9ed
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better match sshd config parser behaviour: fatal() if
line is overlong, increase line buffer to match sshd's; bz#2651 reported by
Don Fong; ok dtucker@
Upstream-ID: b175ae7e0ba403833f1ee566edf10f67443ccd18
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Plug mem leak on GLOB_NOMATCH case. From jjelen at
redhat.com via bz#2687, ok djm@
Upstream-ID: 8016a7ae97719d3aa55fb723fc2ad3200058340d
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support =- for removing methods from algorithms lists,
e.g. Ciphers=-*cbc; suggested by Cristian Ionescu-Idbohrn in bz#2671 "I like
it" markus@
Upstream-ID: c78c38f9f81a963b33d0eade559f6048add24a6d
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allow form-feed characters at EOL; bz#2431 ok dtucker@
Upstream-ID: 1f453afaba6da2ae69d6afdf1ae79a917552f1a2
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small cleanup post SSHv1 removal:
remove SSHv1-isms in commented examples
reorder token table to group deprecated and compile-time conditional tokens
better
fix config dumping code for some compile-time conditional options that
weren't being correctly skipped (SSHv1 and PKCS#11)
Upstream-ID: f2e96b3cb3158d857c5a91ad2e15925df3060105
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some explicit NULL tests when dumping configured
forwardings; from Karsten Weiss
Upstream-ID: 40957b8dea69672b0e50df6b4a91a94e3e37f72d
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fix previous
Upstream-ID: c107d6a69bc22325d79fbf78a2a62e04bcac6895
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show a useful error message when included config files
can't be opened; bz#2653, ok dtucker@
Upstream-ID: f598b73b5dfe497344cec9efc9386b4e5a3cb95b
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Fix logic in add_local_forward() that inverted a test
when code was refactored out into bind_permitted(). This broke ssh port
forwarding for non-priv ports as a non root user.
ok dtucker@ 'looks good' deraadt@
Upstream-ID: ddb8156ca03cc99997de284ce7777536ff9570c9
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Factor out "can bind to low ports" check into its own function. This will
make it easier for Portable to support platforms with permissions models
other than uid==0 (eg bz#2625). ok djm@, "doesn't offend me too much"
deraadt@.
Upstream-ID: 86213df4183e92b8f189a6d2dac858c994bfface
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remove superfluous NOTREACHED comment
Upstream-ID: a7485c1f1be618e8c9e38fd9be46c13b2d03b90c
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reverse the order in which -J/JumpHost proxies are visited to
be more intuitive and document
reported by and manpage bits naddy@
Upstream-ID: 3a68fd6a841fd6cf8cedf6552a9607ba99df179a
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Do not clobber the global jump_host variables when
parsing an inactive configuration. ok djm@
Upstream-ID: 5362210944d91417d5976346d41ac0b244350d31
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Add a ProxyJump ssh_config(5) option and corresponding -J
ssh(1) command-line flag to allow simplified indirection through a SSH
bastion or "jump host".
These options construct a proxy command that connects to the
specified jump host(s) (more than one may be specified) and uses
port-forwarding to establish a connection to the next destination.
This codifies the safest way of indirecting connections through SSH
servers and makes it easy to use.
ok markus@
Upstream-ID: fa899cb8b26d889da8f142eb9774c1ea36b04397
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Allow ExitOnForwardFailure and ClearAllForwardings to be
overridden when using ssh -W (but still default to yes in that case).
bz#2577, ok djm@.
Upstream-ID: 4b20c419e93ca11a861c81c284090cfabc8c54d4
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Move the host and port used by ssh -W into the Options
struct. This will make future changes a bit easier. ok djm@
Upstream-ID: 151bce5ecab2fbedf0d836250a27968d30389382
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allow setting IdentityAgent to SSH_AUTH_SOCK; ok djm@
Upstream-ID: 20c508480d8db3eef18942c0fc39b1fcf25652ac
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IdentityAgent for specifying specific agent sockets; ok
djm@
Upstream-ID: 3e6a15eb89ea0fd406f108826b7dc7dec4fbfac1
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Include directive for ssh_config(5); feedback & ok markus@
Upstream-ID: ae3b76e2e343322b9f74acde6f1e1c5f027d5fff
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Replace by defining IPPORT_RESERVED to zero on Cygwin, which should have
the same effect without causing problems syncing patches with OpenBSD.
Resync the two affected functions with OpenBSD. ok djm, sanity checked
by Corinna.
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don't record duplicate LocalForward and RemoteForward
entries; fixes failure with ExitOnForwardFailure+hostname canonicalisation
where the same forwards are added on the second pass through the
configuration file. bz#2562; ok dtucker@
Upstream-ID: 40a51d68b6300f1cc61deecdb7d4847b8b7b0de1
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don't attempt to percent_expand() already-canonicalised
addresses, avoiding unnecessary failures when attempting to connect to scoped
IPv6 addresses (that naturally contain '%' characters)
Upstream-ID: f24569cffa1a7cbde5f08dc739a72f4d78aa5c6a
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Allow RekeyLimits in excess of 4G up to 2**63 bits
(limited by the return type of scan_scaled). Part of bz#2521, ok djm.
Upstream-ID: 13bea82be566b9704821b1ea05bf7804335c7979
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remove roaming support; ok djm@
Upstream-ID: 2cab8f4b197bc95776fb1c8dc2859dad0c64dc56
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Disable experimental client-side roaming support. Server
side was disabled/gutted for years already, but this aspect was surprisingly
forgotten. Thanks for report from Qualys
Upstream-ID: 2328004b58f431a554d4c1bf67f5407eae3389df
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Add an AddKeysToAgent client option which can be set to
'yes', 'no', 'ask', or 'confirm', and defaults to 'no'. When enabled, a
private key that is used during authentication will be added to ssh-agent if
it is running (with confirmation enabled if set to 'confirm').
Initial version from Joachim Schipper many years ago.
ok markus@
Upstream-ID: a680db2248e8064ec55f8be72d539458c987d5f4
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fix execv arguments in a way less likely to cause grief
for -portable; ok dtucker@
Upstream-ID: 5902bf0ea0371f39f1300698dc3b8e4105fc0fc5
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avoid de-const warning & shrink; ok dtucker@
Upstream-ID: 69a85ef94832378952a22c172009cbf52aaa11db
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Do not prepend "exec" to the shell command run by "Match
exec" in a config file. It's an unnecessary optimization from repurposed
ProxyCommand code and prevents some things working with some shells.
bz#2471, pointed out by res at qoxp.net. ok markus@
Upstream-ID: a1ead25ae336bfa15fb58d8c6b5589f85b4c33a3
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include PubkeyAcceptedKeyTypes in ssh -G config dump
Upstream-ID: 6c097ce6ffebf6fe393fb7988b5d152a5d6b36bb
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add ssh_config CertificateFile option to explicitly list
a certificate; patch from Meghana Bhat on bz#2436; ok markus@
Upstream-ID: 58648ec53c510b41c1f46d8fe293aadc87229ab8
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