Bug 2304

Summary:	forwarding syntax changed -L a/b/c/d format removed - but not documented
Product:	Portable OpenSSH	Reporter:	Alan <alan>
Component:	ssh	Assignee:	Assigned to nobody <unassigned-bugs>
Status:	CLOSED WONTFIX
Severity:	normal	CC:	dtucker
Priority:	P5
Version:	6.7p1
Hardware:	Other
OS:	Linux

Description Alan 2014-10-30 16:04:24 AEDT

This commit

https://github.com/openssh/openssh-portable/commit/7acefbbcbeab725420ea07397ae35992f505f702

Removed the feature that you could use the format -L a/b/c etc..  (this is used by http://sourceforge.net/projects/pacmanager/)

basically  hpdelim split on '/' - but parse_fwd_field uses that to indicate something else.

As far as I could see the commit and "Potentially-incompatible changes" in the release log did not mention the change.

was it an intended change? (I've no idea why PAC decided to use that syntax...)

Comment 1 Darren Tucker 2015-04-24 11:47:18 AEST

The "alternative" host/port syntax was added in 2001:
https://anongit.mindrot.org/openssh.git/commit/?id=62c25a43dbdd0dddb872b997a6f82b4f73c79180

and removed from the documentation in 2010 (with a comment saying it no longer worked at the time) because it had been superceded by [addr]:port which had become more or less standard by then:
https://anongit.mindrot.org/openssh.git/commit/?id=7fa96602e52f02e66897f98a1568cbd3a555192b

It was only ever documented as working for IPv6 addresses, though.  So I guess this would be classed as "unintentional change of undocumented behaviour".

I don't think we can make it work again without breaking Unix domain socket forwarding, though, so I don't think there's anything we can do at this point.

Comment 2 Damien Miller 2015-08-11 23:04:30 AEST

Set all RESOLVED bugs to CLOSED with release of OpenSSH 7.1