On Fri, Feb 4, 2022 at 10:36 AM Dmitry Belyavskiy <dbelyavs@xxxxxxxxxx> wrote: > Red Hat Enterprise Linux 8 series is based on OpenSSH 8.0, which is > rather old. > > Soon after the OpenSSH 8.0 was published, the upstream introduced a > server-side fix for sftp, which changes the use of POSIX realpath > (on Linux) to the OpenBSD one with various quirks: > > https://github.com/openssh/openssh-portable/commit/569b650f93b561c09c655f83f128e1dfffe74101 > > If the OpenBSD realpath is in use on the server, the current master > successfully copies directories using scp in SFTP mode. Otherwise > problems occur. > > As RHEL 8 series will definitely be in wide use for several more > years, I kindly ask the OpenSSH upstream to consider this patch, > which is trying to workaround the server side on the client side: > > https://github.com/openssh/openssh-portable/pull/299 > > It's a slightly tidied up version of the POC patch I've sent to this > ML before. Something else to consider: RHEL8 is still in Full Support phase: https://access.redhat.com/support/policy/updates/errata/ While Red Hat almost never updates software packages to new versions within the same release of RHEL, Red Hat will frequently apply patches, so long as: 1. The version of RHEL for which you are requested the patch is still under the Full Support phase. 2. The patch has already been accepted by upstream; that is, you are requesting a backport of a feature / bugfix that was officially added to the package after that version of RHEL shipped. Both of these are true for RHEL8: RHEL8 is under Full Support through 2024, and the patch in question is part of the official OpenSSH portable distribution. The patch is also small and reasonably self-contained. While it would be nice if later OpenSSH sftp client versions could work around OpenSSH sftp server versions that still use the POSIX realpath() function instead of the OpenBSD sftp_realpath() function, fixing the RHEL8 sftp server would be nice, too. What I normally do in cases like this is open a polite and thorough Bugzilla bug to request the feature/patch, then open a Red Hat support case and refer to the Bugzilla bug. I’ve had pretty good success over the years getting fixes into RHEL with this approach. _______________________________________________ openssh-unix-dev mailing list openssh-unix-dev@xxxxxxxxxxx https://lists.mindrot.org/mailman/listinfo/openssh-unix-dev
