PERFORCE change 56905 for review

[Robert Watson]

http://perforce.freebsd.org/chv.cgi?CH=56905

Change 56905 by rwatson at rwatson_tislabs on 2004/07/09 17:31:05

	Comment consistency and fleshing out.

Affected files ...

.. //depot/projects/trustedbsd/mac/sys/sys/mac_policy.h#211 edit

Differences ...

==== //depot/projects/trustedbsd/mac/sys/sys/mac_policy.h#211 (text+ko) ====

@@ -83,9 +83,9 @@
 	void	(*mpo_init)(struct mac_policy_conf *mpc);
 
 	/*
-	 * General policy-directed security system call so that policies
-	 * may implement new services without reserving explicit
-	 * system call numbers.
+	 * General policy-directed security system call so that policies may
+	 * implement new services without reserving explicit system call
+	 * numbers.
 	 */
 	int	(*mpo_syscall)(struct thread *td, int call, void *arg);
 
@@ -231,7 +231,7 @@
 		    struct label *pipelabel);
 
 	/*    
-	 * Labeling event operations: System V IPC primitives
+	 * Labeling event operations: System V IPC primitives.
 	 */
 	void (*mpo_create_ipc_msgmsg)(struct ucred *cred, 
 		    struct msqid_kernel *msqkptr, 
@@ -563,6 +563,14 @@
 		    struct label *label);
 };
 
+/*
+ * struct mac_policy_conf is the registration structure for policies, and is
+ * provided to the MAC Framework using MAC_POLICY_SET() to invoke a SYSINIT
+ * to register the policy.  In general, the fields are immutable, with the
+ * exception of the "security field", run-time flags, and policy list entry,
+ * which are managed by the MAC Framework.  Be careful when modifying this
+ * structure, as its layout is statically compiled into all policies.
+ */
 struct mac_policy_conf {
 	char				*mpc_name;	/* policy name */
 	char				*mpc_fullname;	/* policy full name */
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