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authorJohn Johansen <john.johansen@canonical.com>2023-04-28 05:32:52 -0700
committerJohn Johansen <john.johansen@canonical.com>2023-10-18 15:30:47 -0700
commit98b824ff8984fd523fc264fbb13208098ab09da3 (patch)
tree35f60b9788d10a556442d1ad5c5bfe4c4a26252d /security/apparmor/apparmorfs.c
parent75c77e9e0713fddbe99a21a036aa6482402f9e34 (diff)
apparmor: refcount the pdb
With the move to permission tables the dfa is no longer a stand alone entity when used, needing a minimum of a permission table. However it still could be shared among different pdbs each using a different permission table. Instead of duping the permission table when sharing a pdb, add a refcount to the pdb so it can be easily shared. Reviewed-by: Georgia Garcia <georgia.garcia@canonical.com> Signed-off-by: John Johansen <john.johansen@canonical.com>
Diffstat (limited to 'security/apparmor/apparmorfs.c')
-rw-r--r--security/apparmor/apparmorfs.c18
1 files changed, 9 insertions, 9 deletions
diff --git a/security/apparmor/apparmorfs.c b/security/apparmor/apparmorfs.c
index f20d923944e4..0bba46ccdb71 100644
--- a/security/apparmor/apparmorfs.c
+++ b/security/apparmor/apparmorfs.c
@@ -619,23 +619,23 @@ static void profile_query_cb(struct aa_profile *profile, struct aa_perms *perms,
if (profile_unconfined(profile))
return;
- if (rules->file.dfa && *match_str == AA_CLASS_FILE) {
- state = aa_dfa_match_len(rules->file.dfa,
- rules->file.start[AA_CLASS_FILE],
+ if (rules->file->dfa && *match_str == AA_CLASS_FILE) {
+ state = aa_dfa_match_len(rules->file->dfa,
+ rules->file->start[AA_CLASS_FILE],
match_str + 1, match_len - 1);
if (state) {
struct path_cond cond = { };
- tmp = *(aa_lookup_fperms(&(rules->file), state, &cond));
+ tmp = *(aa_lookup_fperms(rules->file, state, &cond));
}
- } else if (rules->policy.dfa) {
+ } else if (rules->policy->dfa) {
if (!RULE_MEDIATES(rules, *match_str))
return; /* no change to current perms */
- state = aa_dfa_match_len(rules->policy.dfa,
- rules->policy.start[0],
+ state = aa_dfa_match_len(rules->policy->dfa,
+ rules->policy->start[0],
match_str, match_len);
if (state)
- tmp = *aa_lookup_perms(&rules->policy, state);
+ tmp = *aa_lookup_perms(rules->policy, state);
}
aa_apply_modes_to_perms(profile, &tmp);
aa_perms_accum_raw(perms, &tmp);
@@ -1096,7 +1096,7 @@ static int seq_profile_attach_show(struct seq_file *seq, void *v)
struct aa_profile *profile = labels_profile(label);
if (profile->attach.xmatch_str)
seq_printf(seq, "%s\n", profile->attach.xmatch_str);
- else if (profile->attach.xmatch.dfa)
+ else if (profile->attach.xmatch->dfa)
seq_puts(seq, "<unknown>\n");
else
seq_printf(seq, "%s\n", profile->base.name);