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Comment LABEL_TO_SLOT() macro, including observing that we'd like to improve

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this policy API to avoid encoding struct label binary layout in policy
modules.

Obtained from:	TrustedBSD Project
This commit is contained in:
Robert Watson 2006-12-20 23:41:59 +00:00
parent 19d0ec0330
commit 8425ae1208
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=165429
2 changed files with 16 additions and 0 deletions
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8
sys/security/mac/mac_policy.h
View File

@ -948,6 +948,14 @@ struct mac_policy_conf {
int mac_policy_modevent(module_t mod, int type, void *data);
/*
* Policy interface to map a struct label pointer to per-policy data.
* Typically, policies wrap this in their own accessor macro that casts a
* void pointer to a policy-specific data type.
*
* XXXRW: It might be preferable to provide get/set methods via functions to
* avoid encoding the struct label layout in compiled modules.
*/
#define LABEL_TO_SLOT(l, s) (l)->l_perpolicy[s]
#endif /* !_SYS_MAC_POLICY_H_ */

8
sys/sys/mac_policy.h
View File

@ -948,6 +948,14 @@ struct mac_policy_conf {
int mac_policy_modevent(module_t mod, int type, void *data);
/*
* Policy interface to map a struct label pointer to per-policy data.
* Typically, policies wrap this in their own accessor macro that casts a
* void pointer to a policy-specific data type.
*
* XXXRW: It might be preferable to provide get/set methods via functions to
* avoid encoding the struct label layout in compiled modules.
*/
#define LABEL_TO_SLOT(l, s) (l)->l_perpolicy[s]
#endif /* !_SYS_MAC_POLICY_H_ */