Dear Damien, Sorry for being repetitive - but should we consider it to be a known limitation? Many thanks in advance! On Fri, Jan 28, 2022 at 10:53 AM Dmitry Belyavskiy <dbelyavs@xxxxxxxxxx> wrote: > Dear Damien, > > On Fri, Jan 28, 2022 at 1:40 AM Damien Miller <djm@xxxxxxxxxxx> wrote: > >> On Thu, 27 Jan 2022, Dmitry Belyavskiy wrote: >> >> > Hello, >> > >> > When we use scp in sftp mode to copy folder to the machines with the >> "old" >> > version of ssh, we get the following error: >> > ====== >> > $ scp -vvv -r test/ touser@machine:/home/touser >> >> What version of OpenSSH are you using? There are a bunch of fixes in git >> HEAD after 8.8. >> >> > If I understand correctly, the failure is caused by the lack of the " >> > expand-path@xxxxxxxxxxx" >> > extension to sftp protocol in old releases and (lack of) processing it >> on >> > the server side. >> >> No, that extension is only invoked when a ~-prefixed path is used. >> >> AFAIK this was juat a behaviour difference: scp in sftp mode wasn't >> creating the destination directory if it didn't exist, whereas legacy >> scp would do so. It was fixed in the commit you identify below. >> >> > For the recent version self-compatibility it was fixed in >> > >> https://github.com/openssh/openssh-portable/commit/ac7c9ec894ed0825d04ef69c55babb49bab1d32e >> >> -d >> >> I've just retested with the recent master > > $ ./scp -S `pwd`/ssh -vvv -r -s `pwd`/openbsd-compat/ user@machine: > > debug2: subsystem request accepted on channel 0 > ./scp: debug2: Remote version: 3 > ./scp: debug2: Server supports extension "posix-rename@xxxxxxxxxxx" > revision 1 > ./scp: debug2: Server supports extension "statvfs@xxxxxxxxxxx" revision 2 > ./scp: debug2: Server supports extension "fstatvfs@xxxxxxxxxxx" revision 2 > ./scp: debug2: Server supports extension "hardlink@xxxxxxxxxxx" revision 1 > ./scp: debug2: Server supports extension "fsync@xxxxxxxxxxx" revision 1 > ./scp: debug2: Server supports extension "lsetstat@xxxxxxxxxxx" revision 1 > ./scp: debug2: Sending SSH2_FXP_STAT "/root" > ./scp: debug3: Sent message fd 6 T:17 I:1 > ./scp: debug3: Received stat reply T:105 I:1 F:0x000f M:40550 > ./scp: debug3: source_sftp: copying local > /home/dbelyavs/work/upstream/openssh-portable/openbsd-compat to remote > /root/openbsd-compat > ./scp: debug2: Sending SSH2_FXP_REALPATH "/root/openbsd-compat" > ./scp: debug3: Sent message fd 6 T:16 I:2 > ./scp: realpath /root/openbsd-compat: No such file > ./scp: upload "/root/openbsd-compat": path canonicalization failed > ./scp: failed to upload directory > /home/dbelyavs/work/upstream/openssh-portable/openbsd-compat to > /root/openbsd-compat > > The failure occurs even when I specify absolute paths on the > source/destination machine. > > The destination machine has OpenSSH_8.0p1 with patches. > > -- > Dmitry Belyavskiy > -- Dmitry Belyavskiy _______________________________________________ openssh-unix-dev mailing list openssh-unix-dev@xxxxxxxxxxx https://lists.mindrot.org/mailman/listinfo/openssh-unix-dev
