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selinux: Support for the new TUN LSM hooks

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Add support for the new TUN LSM hooks: security_tun_dev_create(),
security_tun_dev_post_create() and security_tun_dev_attach().  This includes
the addition of a new object class, tun_socket, which represents the socks
associated with TUN devices.  The _tun_dev_create() and _tun_dev_post_create()
hooks are fairly similar to the standard socket functions but _tun_dev_attach()
is a bit special.  The _tun_dev_attach() is unique because it involves a
domain attaching to an existing TUN device and its associated tun_socket
object, an operation which does not exist with standard sockets and most
closely resembles a relabel operation.

Signed-off-by: Paul Moore <paul.moore@hp.com>
Acked-by: Eric Paris <eparis@parisplace.org>
Signed-off-by: James Morris <jmorris@namei.org>
This commit is contained in:
Paul Moore
2009-08-28 18:12:49 -04:00
committed by James Morris
parent 2b980dbd77
commit ed6d76e4c3
5 changed files with 83 additions and 2 deletions
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1
security/selinux/include/av_inherit.h
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@ -15,6 +15,7 @@
S_(SECCLASS_KEY_SOCKET, socket, 0x00400000UL)
S_(SECCLASS_UNIX_STREAM_SOCKET, socket, 0x00400000UL)
S_(SECCLASS_UNIX_DGRAM_SOCKET, socket, 0x00400000UL)
S_(SECCLASS_TUN_SOCKET, socket, 0x00400000UL)
S_(SECCLASS_IPC, ipc, 0x00000200UL)
S_(SECCLASS_SEM, ipc, 0x00000200UL)
S_(SECCLASS_MSGQ, ipc, 0x00000200UL)