[sshfs] Error "Connection Reset By Peer" on pam_mount+sshfs (Fedora Core 6)

Hi:

I arrive to fuse-sshfs mailing list after *weeks* of googling for a
solution without success.

I am trying to use pam_mount on a Fedora Core 6 client to mount homes
for users.

My setup seems to be ok in terms of pam.d configuration and permissions,
because if I use pam_mount+CIFS everything works fine.

If I mount the shares with:

volume * cifs sambaserver homes ~ dmask=0711 - -

Everything runs perfectly, so pam is working and everything else is.

BUT when I try to use sshfs, changing the above line with this:

volume * fuse loira "sshfs#&@loira:" ~ - - -

Then this error is printed:

login: pam_mount(mount.c:100) read: Connection reset by peer

But, if after logging in without home directory (due to this error), the
user reproduces the exact command that pam_mount is executing
(mount.fuse) ¡¡then the directory is mounted without any problems!!

I can see no answer in google with this problem: and both my client
(ks-loira) and my server (loira) are fresh installs. I guess this is a
problem of sshfs because, as I stated before, there is no
problem mounting CIFS shares (and this module gets the password correctly).

By the way I need SSHFS and not CIFS because I need unix permissions to
be set correctly, and I don't get it to work with CIFS.

I asked just hours ago on the pam_mount mailing list but the mantainer
told me that the message "reset by peer" comes from the mount child, and
not from pam_mount, which points to a problem with sshfs. Seems like
this issue happens on OpenSUSE 10.2

I'd be very glad if you could give me some advice on my problem: I
attach the complete log on the client. On the ssh server just a message
is printed on the logs "Connection closed by 10.200.0.1" (which is the
client where pam_mount is running). Seems like sshfs is connecting but
not sending anything.

Thanks in advance.

Manuel Moran
(mmv@xxxxxxxxxxxx)


ps. Client log when this happens:


Dec 13 14:00:34 ks-loira login: pam_mount(mount.c:171) can't get
realpath of volume /home/alumnos/alumin: No such file or directory
Dec 13 14:00:34 ks-loira login: pam_mount(mount.c:182) checking to see
if sshfs#alumin@loira: is already mounted at /home/alumnos/alumin
Dec 13 14:00:34 ks-loira login: pam_mount(mount.c:397) creating mount
point /home/alumnos/alumin
Dec 13 14:00:34 ks-loira login: pam_mount(mount.c:799) checking for
encrypted filesystem key configuration
Dec 13 14:00:34 ks-loira login: pam_mount(mount.c:819) about to start
building mount command
Dec 13 14:00:34 ks-loira login: pam_mount(misc.c:298) could not fill
%(before="-o" OPTIONS)
Dec 13 14:00:34 ks-loira login: pam_mount(misc.c:262) command:
/sbin/mount.fuse [sshfs#alumin@loira:] [/home/alumnos/alumin]
Dec 13 14:00:34 ks-loira login: pam_mount(misc.c:352) setting uid to
user alumin
Dec 13 14:00:34 ks-loira login: pam_mount(misc.c:370) set_myuid(post):
real uid/gid=2238:2035, effective uid/gid=2238:2035
Dec 13 14:00:34 ks-loira login: pam_mount(mount.c:851) mount errors
(should be empty):
Dec 13 14:00:34 ks-loira login: pam_mount(mount.c:100)
pam_mount(misc.c:352) setting uid to user alumin
Dec 13 14:00:34 ks-loira login: pam_mount(mount.c:100)
pam_mount(misc.c:370) set_myuid(post): real uid/gid=2238:2035, effective
uid/gid=2238:2035
Dec 13 14:00:34 ks-loira login: pam_mount(mount.c:100) read: Connection
reset by peer
Dec 13 14:00:34 ks-loira login: pam_mount(mount.c:854) waiting for mount
Dec 13 14:00:34 ks-loira login: pam_mount(pam_mount.c:478) mount of
sshfs#alumin@loira: failed
Dec 13 14:00:34 ks-loira login: pam_mount(pam_mount.c:123) clean system
authtok (0)


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