1. 17 Oct, 2007 2 commits
    • Eric Van Hensbergen's avatar
      9p: remove sysctl · 982c37cf
      Eric Van Hensbergen authored
      A sysctl method was added to enable and disable debugging levels.  After
      further review, it was decided that there are better approaches to doing this
      and the sysctl methodology isn't really desirable.  This patch removes the
      sysctl code from 9p.
      Signed-off-by: default avatarEric Van Hensbergen <ericvh@gmail.com>
    • Latchesar Ionkov's avatar
      9p: attach-per-user · ba17674f
      Latchesar Ionkov authored
      The 9P2000 protocol requires the authentication and permission checks to be
      done in the file server. For that reason every user that accesses the file
      server tree has to authenticate and attach to the server separately.
      Multiple users can share the same connection to the server.
      Currently v9fs does a single attach and executes all I/O operations as a
      single user. This makes using v9fs in multiuser environment unsafe as it
      depends on the client doing the permission checking.
      This patch improves the 9P2000 support by allowing every user to attach
      separately. The patch defines three modes of access (new mount option
      - attach-per-user (access=user) (default mode for 9P2000.u)
       If a user tries to access a file served by v9fs for the first time, v9fs
       sends an attach command to the server (Tattach) specifying the user. If
       the attach succeeds, the user can access the v9fs tree.
       As there is no uname->uid (string->integer) mapping yet, this mode works
       only with the 9P2000.u dialect.
      - allow only one user to access the tree (access=<uid>)
       Only the user with uid can access the v9fs tree. Other users that attempt
       to access it will get EPERM error.
      - do all operations as a single user (access=any) (default for 9P2000)
       V9fs does a single attach and all operations are done as a single user.
       If this mode is selected, the v9fs behavior is identical with the current
      Signed-off-by: default avatarLatchesar Ionkov <lucho@ionkov.net>
      Signed-off-by: default avatarEric Van Hensbergen <ericvh@gmail.com>
  2. 10 Oct, 2007 1 commit
  3. 14 Jul, 2007 1 commit