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| author | John Johansen <john.johansen@canonical.com> | 2022-07-16 11:53:46 +0300 |
|---|---|---|
| committer | John Johansen <john.johansen@canonical.com> | 2022-10-04 00:49:03 +0300 |
| commit | e844fe9b51c984472ea98be3b2d1201ba9ee3213 (patch) | |
| tree | 167bf6c3beeec74821dd3f2d54b77b3c37b3a361 /security/apparmor/include/policy.h | |
| parent | bf690f59d0429c62de4db1234f16557eedcb39bf (diff) | |
| download | linux-e844fe9b51c984472ea98be3b2d1201ba9ee3213.tar.xz | |
apparmor: convert policy lookup to use accept as an index
Remap polidydb dfa accept table from embedded perms to an index, and
then move the perm lookup to use the accept entry as an index into the
perm table. This is done so that the perm table can be separated from
the dfa, allowing dfa accept to index to share expanded permission
sets.
Signed-off-by: John Johansen <john.johansen@canonical.com>
Diffstat (limited to 'security/apparmor/include/policy.h')
| -rw-r--r-- | security/apparmor/include/policy.h | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/security/apparmor/include/policy.h b/security/apparmor/include/policy.h index 44d8cbb1c368..31c0af876250 100644 --- a/security/apparmor/include/policy.h +++ b/security/apparmor/include/policy.h @@ -90,6 +90,18 @@ static inline void aa_destroy_policydb(struct aa_policydb *policy) } +static inline struct aa_perms *aa_lookup_perms(struct aa_policydb *policy, + unsigned int state) +{ + unsigned int index = ACCEPT_TABLE(policy->dfa)[state]; + + if (!(policy->perms)) + return &default_perms; + + return &(policy->perms[index]); +} + + /* struct aa_data - generic data structure * key: name for retrieving this data * size: size of data in bytes |