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[PATCH] selinux: add hooks for key subsystem

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Introduce SELinux hooks to support the access key retention subsystem
within the kernel.  Incorporate new flask headers from a modified version
of the SELinux reference policy, with support for the new security class
representing retained keys.  Extend the "key_alloc" security hook with a
task parameter representing the intended ownership context for the key
being allocated.  Attach security information to root's default keyrings
within the SELinux initialization routine.

Has passed David's testsuite.

Signed-off-by: Michael LeMay <mdlemay@epoch.ncsc.mil>
Signed-off-by: David Howells <dhowells@redhat.com>
Signed-off-by: James Morris <jmorris@namei.org>
Acked-by: Chris Wright <chrisw@sous-sol.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
This commit is contained in:
Michael LeMay
2006-06-22 14:47:17 -07:00
committed by Linus Torvalds
parent f893afbe12
commit d720024e94
16 changed files with 155 additions and 27 deletions
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6
security/selinux/include/av_perm_to_string.h
View File

@@ -242,3 +242,9 @@
S_(SECCLASS_PACKET, PACKET__SEND, "send")
S_(SECCLASS_PACKET, PACKET__RECV, "recv")
S_(SECCLASS_PACKET, PACKET__RELABELTO, "relabelto")
S_(SECCLASS_KEY, KEY__VIEW, "view")
S_(SECCLASS_KEY, KEY__READ, "read")
S_(SECCLASS_KEY, KEY__WRITE, "write")
S_(SECCLASS_KEY, KEY__SEARCH, "search")
S_(SECCLASS_KEY, KEY__LINK, "link")
S_(SECCLASS_KEY, KEY__SETATTR, "setattr")

8
security/selinux/include/av_permissions.h
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@@ -959,3 +959,11 @@
#define PACKET__SEND 0x00000001UL
#define PACKET__RECV 0x00000002UL
#define PACKET__RELABELTO 0x00000004UL
#define KEY__VIEW 0x00000001UL
#define KEY__READ 0x00000002UL
#define KEY__WRITE 0x00000004UL
#define KEY__SEARCH 0x00000008UL
#define KEY__LINK 0x00000010UL
#define KEY__SETATTR 0x00000020UL

1
security/selinux/include/class_to_string.h
View File

@@ -60,3 +60,4 @@
S_("netlink_kobject_uevent_socket")
S_("appletalk_socket")
S_("packet")
S_("key")

1
security/selinux/include/flask.h
View File

@@ -62,6 +62,7 @@
#define SECCLASS_NETLINK_KOBJECT_UEVENT_SOCKET 55
#define SECCLASS_APPLETALK_SOCKET 56
#define SECCLASS_PACKET 57
#define SECCLASS_KEY 58
/*
* Security identifier indices for initial entities

5
security/selinux/include/objsec.h
View File

@@ -99,6 +99,11 @@ struct sk_security_struct {
u32 peer_sid; /* SID of peer */
};
struct key_security_struct {
struct key *obj; /* back pointer */
u32 sid; /* SID of key */
};
extern unsigned int selinux_checkreqprot;
#endif /* _SELINUX_OBJSEC_H_ */