apparmor: cleanup shared permission struct

The shared permissions struct has the stop field which is unneeded
and the "reserved" subtree field commented which is needed. Also
reorganize so that the entries are logically grouped.

Signed-off-by: John Johansen <john.johansen@canonical.com>

diff --git a/security/apparmor/include/perms.h b/security/apparmor/include/perms.h
index de9631edb1ff96d1f31ef37bb3ddf648c18c2ad7..1f3e7680e8092b4c1abad3eea2dbb7f78da0fdb9 100644 (file)
--- a/security/apparmor/include/perms.h
+++ b/security/apparmor/include/perms.h
@@ -65,22 +65,19 @@ extern const char *aa_file_perm_names[];
 
 struct aa_perms {
        u32 allow;
-       u32 audit;      /* set only when allow is set */
-
        u32 deny;       /* explicit deny, or conflict if allow also set */
-       u32 quiet;      /* set only when ~allow | deny */
-       u32 kill;       /* set only when ~allow | deny */
-       u32 stop;       /* set only when ~allow | deny */
 
-       u32 complain;   /* accumulates only used when ~allow & ~deny */
+       u32 subtree;    /* allow perm on full subtree only when allow is set */
        u32 cond;       /* set only when ~allow and ~deny */
 
-       u32 hide;       /* set only when  ~allow | deny */
+       u32 kill;       /* set only when ~allow | deny */
+       u32 complain;   /* accumulates only used when ~allow & ~deny */
        u32 prompt;     /* accumulates only used when ~allow & ~deny */
 
-       /* Reserved:
-        * u32 subtree; / * set only when allow is set * /
-        */
+       u32 audit;      /* set only when allow is set */
+       u32 quiet;      /* set only when ~allow | deny */
+       u32 hide;       /* set only when  ~allow | deny */
+
        u16 xindex;
 };
 

diff --git a/security/apparmor/lib.c b/security/apparmor/lib.c
index 505ef5848f7ce8798ad218c495dbe290a79766f6..974a217218a6efa8c72e710a3bd3c02014313682 100644 (file)
--- a/security/apparmor/lib.c
+++ b/security/apparmor/lib.c
@@ -327,11 +327,11 @@ void aa_perms_accum_raw(struct aa_perms *accum, struct aa_perms *addend)
        accum->audit |= addend->audit & addend->allow;
        accum->quiet &= addend->quiet & ~addend->allow;
        accum->kill |= addend->kill & ~addend->allow;
-       accum->stop |= addend->stop & ~addend->allow;
        accum->complain |= addend->complain & ~addend->allow & ~addend->deny;
        accum->cond |= addend->cond & ~addend->allow & ~addend->deny;
        accum->hide &= addend->hide & ~addend->allow;
        accum->prompt |= addend->prompt & ~addend->allow & ~addend->deny;
+       accum->subtree |= addend->subtree & ~addend->deny;
 }
 
 /**
@@ -346,11 +346,11 @@ void aa_perms_accum(struct aa_perms *accum, struct aa_perms *addend)
        accum->audit |= addend->audit & accum->allow;
        accum->quiet &= addend->quiet & ~accum->allow;
        accum->kill |= addend->kill & ~accum->allow;
-       accum->stop |= addend->stop & ~accum->allow;
        accum->complain |= addend->complain & ~accum->allow & ~accum->deny;
        accum->cond |= addend->cond & ~accum->allow & ~accum->deny;
        accum->hide &= addend->hide & ~accum->allow;
        accum->prompt |= addend->prompt & ~accum->allow & ~accum->deny;
+       accum->subtree &= addend->subtree & ~accum->deny;
 }
 
 void aa_profile_match_label(struct aa_profile *profile, struct aa_label *label,