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2013-07-03libceph: Fix NULL pointer dereference in auth client codeTyler Hicks1-0/+6
A malicious monitor can craft an auth reply message that could cause a NULL function pointer dereference in the client's kernel. To prevent this, the auth_none protocol handler needs an empty ceph_auth_client_ops->build_request() function. CVE-2013-1059 Signed-off-by: Tyler Hicks <tyhicks@canonical.com> Reported-by: Chanam Park <chanam.park@hkpco.kr> Reviewed-by: Seth Arnold <seth.arnold@canonical.com> Reviewed-by: Sage Weil <sage@inktank.com> Cc: stable@vger.kernel.org
2012-05-17ceph: messenger: reduce args to create_authorizerAlex Elder1-8/+7
Make use of the new ceph_auth_handshake structure in order to reduce the number of arguments passed to the create_authorizor method in ceph_auth_client_ops. Use a local variable of that type as a shorthand in the get_authorizer method definitions. Signed-off-by: Alex Elder <elder@inktank.com> Reviewed-by: Sage Weil <sage@inktank.com>
2010-10-20ceph: factor out libceph from Ceph file systemYehuda Sadeh1-0/+132
This factors out protocol and low-level storage parts of ceph into a separate libceph module living in net/ceph and include/linux/ceph. This is mostly a matter of moving files around. However, a few key pieces of the interface change as well: - ceph_client becomes ceph_fs_client and ceph_client, where the latter captures the mon and osd clients, and the fs_client gets the mds client and file system specific pieces. - Mount option parsing and debugfs setup is correspondingly broken into two pieces. - The mon client gets a generic handler callback for otherwise unknown messages (mds map, in this case). - The basic supported/required feature bits can be expanded (and are by ceph_fs_client). No functional change, aside from some subtle error handling cases that got cleaned up in the refactoring process. Signed-off-by: Sage Weil <sage@newdream.net>

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