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Introduce support for Mandatory Access Control and extensible

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kernel access control.

Teach devfs how to respond to pathconf() _POSIX_MAC_PRESENT queries,
allowing it to indicate to user processes that individual vnode labels
are available.

Obtained from:	TrustedBSD Project
Sponsored by:	DARPA, NAI Labs
This commit is contained in:
Robert Watson 2002-08-02 03:12:40 +00:00
parent ef1e7a2656
commit 67d722ed73
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=101195
1 changed files with 11 additions and 0 deletions
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11
sys/fs/devfs/devfs_vnops.c
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@ -509,6 +509,17 @@ devfs_pathconf(ap)
case _PC_PATH_MAX:
*ap->a_retval = PATH_MAX;
return (0);
case _POSIX_MAC_PRESENT:
#ifdef MAC
/*
* If MAC is enabled, devfs automatically supports
* trivial non-persistant label storage.
*/
*ap->a_retval = 1;
#else
*ap->a_retval = 0;
#endif /* MAC */
return (0);
default:
return (vop_stdpathconf(ap));
}