diff options
Diffstat (limited to 'security/apparmor/policy_unpack.c')
| -rw-r--r-- | security/apparmor/policy_unpack.c | 31 |
1 files changed, 28 insertions, 3 deletions
diff --git a/security/apparmor/policy_unpack.c b/security/apparmor/policy_unpack.c index 741dd13e089b..25fd51edc8da 100644 --- a/security/apparmor/policy_unpack.c +++ b/security/apparmor/policy_unpack.c @@ -84,7 +84,7 @@ static void audit_cb(struct audit_buffer *ab, void *va) * @new: profile if it has been allocated (MAYBE NULL) * @name: name of the profile being manipulated (MAYBE NULL) * @info: any extra info about the failure (MAYBE NULL) - * @e: buffer position info (NOT NULL) + * @e: buffer position info * @error: error code * * Returns: %0 or error @@ -95,7 +95,8 @@ static int audit_iface(struct aa_profile *new, const char *name, struct aa_profile *profile = __aa_current_profile(); struct common_audit_data sa; COMMON_AUDIT_DATA_INIT(&sa, NONE); - sa.aad.iface.pos = e->pos - e->start; + if (e) + sa.aad.iface.pos = e->pos - e->start; sa.aad.iface.target = new; sa.aad.name = name; sa.aad.info = info; @@ -468,7 +469,7 @@ static struct aa_profile *unpack_profile(struct aa_ext *e) { struct aa_profile *profile = NULL; const char *name = NULL; - int error = -EPROTO; + int i, error = -EPROTO; kernel_cap_t tmpcap; u32 tmp; @@ -554,11 +555,35 @@ static struct aa_profile *unpack_profile(struct aa_ext *e) goto fail; if (!unpack_u32(e, &(profile->caps.extended.cap[1]), NULL)) goto fail; + if (!unpack_nameX(e, AA_STRUCTEND, NULL)) + goto fail; } if (!unpack_rlimits(e, profile)) goto fail; + if (unpack_nameX(e, AA_STRUCT, "policydb")) { + /* generic policy dfa - optional and may be NULL */ + profile->policy.dfa = unpack_dfa(e); + if (IS_ERR(profile->policy.dfa)) { + error = PTR_ERR(profile->policy.dfa); + profile->policy.dfa = NULL; + goto fail; + } + if (!unpack_u32(e, &profile->policy.start[0], "start")) + /* default start state */ + profile->policy.start[0] = DFA_START; + /* setup class index */ + for (i = AA_CLASS_FILE; i <= AA_CLASS_LAST; i++) { + profile->policy.start[i] = + aa_dfa_next(profile->policy.dfa, + profile->policy.start[0], + i); + } + if (!unpack_nameX(e, AA_STRUCTEND, NULL)) + goto fail; + } + /* get file rules */ profile->file.dfa = unpack_dfa(e); if (IS_ERR(profile->file.dfa)) { |