sshfs 2.x unable to create mount points (Sierra/High Sierra and later)

[matt-hammond-bbc (Matt Hammond)]

A change in Mac OS Sierra and later has locked down permissions on /Volumes such that it is not possible to create mount points without root privileges. Request that this port be updated to sshfs 3.x to resolve this.

The security changes to Sierra and later: ​https://derflounder.wordpress.com/2016/09/21/macos-sierras-volumes-folder-is-no-longer-world-writable/

osxfuse 3.5.0 added support to automatically create mount-points, but sshfs also needed changes to stop it checking that the mount-point already exists. This change has been made to the 3.x branch, but not the 2.x branch.

• Original issue raised for osxfuse: ​https://github.com/osxfuse/osxfuse/issues/306
• Issue for sshfs: ​https://github.com/osxfuse/sshfs/issues/27
• The change to sshfs 3.x: ​https://github.com/libfuse/sshfs/commit/861d308a03319e23286290ee8cffc6fd307e0ec9

Example (running High Sierra 10.13.6 with:

• sshfs @2.10_0
• osxfuse @3.8.2_0

  $ sshfs user@SERVER:/ /Volumes/XXXX -oreconnect,volname="SERVERNAME",idmap=user
  mount: realpath /Volumes/XXXX: No such file or directory
  

[ra1nb0w]

sshfs 2.10 contains the patch ​https://github.com/libfuse/sshfs/blob/42dfaf9a5bdc1ee429c7718e8788ca37a5763e0d/sshfs.c#L4038

In any case, I receive the following error if I use /Volume. Works flawless with ~/test directory

sshfs -p22 -d test.domain.com: /Volumes/test
mount_osxfuse: /Volumes/test: Permission denied

If I understand correctly the new behaviour, osxfuse could create the mount-point in /Volume and use it. right?

thanks

macOS 10.14.3 18D109
Xcode 10.1 10B61
osxfuse @3.8.3_0
sshfs @2.10_0

[matt-hammond-bbc (Matt Hammond)]

Yes, if I understand you correctly. The right version of Osxfuse will create the mount point. What is important is that sshf should not object if the mount point does not yet Exist.