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  1. 21 9月, 2012 23 次提交
  3. 20 9月, 2012 1 次提交
  5. 18 9月, 2012 9 次提交
    • E
      userns: Convert quota · 1a06d420
      由 Eric W. Biederman 提交于 
      Now that the type changes are done, here is the final set of
changes to make the quota code work when user namespaces are enabled.

Small cleanups and fixes to make the code build when user namespaces
are enabled.

Cc: Jan Kara <jack@suse.cz>
Signed-off-by: N"Eric W. Biederman" <ebiederm@xmission.com>
      1a06d420
    • E
      userns: Convert quota netlink aka quota_send_warning · 431f1974
      由 Eric W. Biederman 提交于 
      Modify quota_send_warning to take struct kqid instead a type and
identifier pair.

When sending netlink broadcasts always convert uids and quota
identifiers into the intial user namespace.  There is as yet no way to
send a netlink broadcast message with different contents to receivers
in different namespaces, so for the time being just map all of the
identifiers into the initial user namespace which preserves the
current behavior.

Change the callers of quota_send_warning in gfs2, xfs and dquot
to generate a struct kqid to pass to quota send warning.  When
all of the user namespaces convesions are complete a struct kqid
values will be availbe without need for conversion, but a conversion
is needed now to avoid needing to convert everything at once.

Cc: Ben Myers <bpm@sgi.com>
Cc: Alex Elder <elder@kernel.org>
Cc: Dave Chinner <david@fromorbit.com>
Cc: Jan Kara <jack@suse.cz>
Cc: Steven Whitehouse <swhiteho@redhat.com>
Signed-off-by: N"Eric W. Biederman" <ebiederm@xmission.com>
      431f1974
    • E
      userns: Convert qutoactl · 74a8a103
      由 Eric W. Biederman 提交于 
      Update the quotactl user space interface to successfull compile with
user namespaces support enabled and to hand off quota identifiers to
lower layers of the kernel in struct kqid instead of type and qid
pairs.

The quota on function is not converted because while it takes a quota
type and an id.  The id is the on disk quota format to use, which
is something completely different.

The signature of two struct quotactl_ops methods were changed to take
struct kqid argumetns get_dqblk and set_dqblk.

The dquot, xfs, and ocfs2 implementations of get_dqblk and set_dqblk
are minimally changed so that the code continues to work with
the change in parameter type.

This is the first in a series of changes to always store quota
identifiers in the kernel in struct kqid and only use raw type and qid
values when interacting with on disk structures or userspace.  Always
using struct kqid internally makes it hard to miss places that need
conversion to or from the kernel internal values.

Cc: Jan Kara <jack@suse.cz>
Cc: Dave Chinner <david@fromorbit.com>
Cc: Mark Fasheh <mfasheh@suse.com>
Cc: Joel Becker <jlbec@evilplan.org>
Cc: Ben Myers <bpm@sgi.com>
Cc: Alex Elder <elder@kernel.org>
Signed-off-by: N"Eric W. Biederman" <ebiederm@xmission.com>
      74a8a103
    • E
      userns: Convert configfs to use kuid and kgid where appropriate · 69552c0c
      由 Eric W. Biederman 提交于 
      Cc: Joel Becker <jlbec@evilplan.org>
Acked-by: NSerge Hallyn <serge.hallyn@canonical.com>
Signed-off-by: NEric W. Biederman <ebiederm@xmission.com>
      69552c0c
    • E
      userns: Convert extN to support kuids and kgids in posix acls · af84df93
      由 Eric W. Biederman 提交于 
      Convert ext2, ext3, and ext4 to fully support the posix acl changes,
using e_uid e_gid instead e_id.

Enabled building with posix acls enabled, all filesystems supporting
user namespaces, now also support posix acls when user namespaces are enabled.

Cc: Theodore Tso <tytso@mit.edu>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Andreas Dilger <adilger.kernel@dilger.ca>
Cc: Jan Kara <jack@suse.cz>
Cc: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: NEric W. Biederman <ebiederm@xmission.com>
      af84df93
    • E
      userns: Teach trace to use from_kuid · d20b92ab
      由 Eric W. Biederman 提交于 
      - When tracing capture the kuid.
- When displaying the data to user space convert the kuid into the
  user namespace of the process that opened the report file.

Cc: Steven Rostedt <rostedt@goodmis.org>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Ingo Molnar <mingo@redhat.com>
Signed-off-by: NEric W. Biederman <ebiederm@xmission.com>
      d20b92ab
    • E
      userns: Convert bsd process accounting to use kuid and kgid where appropriate · f8f3d4de
      由 Eric W. Biederman 提交于 
      BSD process accounting conveniently passes the file the accounting
records will be written into to do_acct_process.  The file credentials
captured the user namespace of the opener of the file.  Use the file
credentials to format the uid and the gid of the current process into
the user namespace of the user that started the bsd process
accounting.

Cc: Pavel Emelyanov <xemul@openvz.org>
Reviewed-by: NSerge Hallyn <serge.hallyn@canonical.com>
Signed-off-by: NEric W. Biederman <ebiederm@xmission.com>
      f8f3d4de
    • E
      userns: Convert taskstats to handle the user and pid namespaces. · 4bd6e32a
      由 Eric W. Biederman 提交于 
      - Explicitly limit exit task stat broadcast to the initial user and
  pid namespaces, as it is already limited to the initial network
  namespace.

- For broadcast task stats explicitly generate all of the idenitiers
  in terms of the initial user namespace and the initial pid
  namespace.

- For request stats report them in terms of the current user namespace
  and the current pid namespace.  Netlink messages are delivered
  syncrhonously to the kernel allowing us to get the user namespace
  and the pid namespace from the current task.

- Pass the namespaces for representing pids and uids and gids
  into bacct_add_task.

Cc: Balbir Singh <bsingharora@gmail.com>
Signed-off-by: NEric W. Biederman <ebiederm@xmission.com>
      4bd6e32a
    • E
      userns: Convert audit to work with user namespaces enabled · cca080d9
      由 Eric W. Biederman 提交于 
      - Explicitly format uids gids in audit messges in the initial user
  namespace. This is safe because auditd is restrected to be in
  the initial user namespace.

- Convert audit_sig_uid into a kuid_t.

- Enable building the audit code and user namespaces at the same time.

The net result is that the audit subsystem now uses kuid_t and kgid_t whenever
possible making it almost impossible to confuse a raw uid_t with a kuid_t
preventing bugs.

Cc: Al Viro <viro@zeniv.linux.org.uk>
Cc: Eric Paris <eparis@redhat.com>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: NEric W. Biederman <ebiederm@xmission.com>
      cca080d9
  7. 14 9月, 2012 3 次提交
  9. 07 9月, 2012 3 次提交
  11. 24 8月, 2012 1 次提交