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| author | John Johansen <john.johansen@canonical.com> | 2017-01-16 00:43:07 -0800 |
|---|---|---|
| committer | John Johansen <john.johansen@canonical.com> | 2017-01-16 01:18:50 -0800 |
| commit | 31f75bfecd9cef7d485b1cda3c6c38cc0b4a5c6c (patch) | |
| tree | 0758d1473b978e95a90655ebdba9c7e25147b68c /security/apparmor/policy_unpack.c | |
| parent | aa9a39ad8f60cc73e1bd2f18f0693bba6be8b067 (diff) | |
| download | linux-31f75bfecd9cef7d485b1cda3c6c38cc0b4a5c6c.tar.gz linux-31f75bfecd9cef7d485b1cda3c6c38cc0b4a5c6c.tar.bz2 linux-31f75bfecd9cef7d485b1cda3c6c38cc0b4a5c6c.zip | |
apparmor: make computing policy hashes conditional on kernel parameter
Allow turning off the computation of the policy hashes via the
apparmor.hash_policy kernel parameter.
Signed-off-by: John Johansen <john.johansen@canonical.com>
Diffstat (limited to 'security/apparmor/policy_unpack.c')
| -rw-r--r-- | security/apparmor/policy_unpack.c | 15 |
1 files changed, 9 insertions, 6 deletions
diff --git a/security/apparmor/policy_unpack.c b/security/apparmor/policy_unpack.c index 441efc965f2b..59c891ad1270 100644 --- a/security/apparmor/policy_unpack.c +++ b/security/apparmor/policy_unpack.c @@ -825,7 +825,8 @@ int aa_unpack(struct aa_loaddata *udata, struct list_head *lh, if (error) goto fail_profile; - error = aa_calc_profile_hash(profile, e.version, start, + if (aa_g_hash_policy) + error = aa_calc_profile_hash(profile, e.version, start, e.pos - start); if (error) goto fail_profile; @@ -841,11 +842,13 @@ int aa_unpack(struct aa_loaddata *udata, struct list_head *lh, list_add_tail(&ent->list, lh); } udata->abi = e.version & K_ABI_MASK; - udata->hash = aa_calc_hash(udata->data, udata->size); - if (IS_ERR(udata->hash)) { - error = PTR_ERR(udata->hash); - udata->hash = NULL; - goto fail; + if (aa_g_hash_policy) { + udata->hash = aa_calc_hash(udata->data, udata->size); + if (IS_ERR(udata->hash)) { + error = PTR_ERR(udata->hash); + udata->hash = NULL; + goto fail; + } } return 0; |