diff options
Diffstat (limited to 'security')
-rw-r--r-- | security/apparmor/domain.c | 4 | ||||
-rw-r--r-- | security/apparmor/include/policy.h | 6 | ||||
-rw-r--r-- | security/apparmor/include/policy_unpack.h | 7 | ||||
-rw-r--r-- | security/apparmor/policy.c | 6 | ||||
-rw-r--r-- | security/apparmor/policy_unpack.c | 8 |
5 files changed, 22 insertions, 9 deletions
diff --git a/security/apparmor/domain.c b/security/apparmor/domain.c index bc28f2670ee..26c607c971f 100644 --- a/security/apparmor/domain.c +++ b/security/apparmor/domain.c @@ -371,8 +371,8 @@ int apparmor_bprm_set_creds(struct linux_binprm *bprm) error = aa_path_name(&bprm->file->f_path, profile->path_flags, &buffer, &name, &info); if (error) { - if (profile->flags & - (PFLAG_IX_ON_NAME_ERROR | PFLAG_UNCONFINED)) + if (unconfined(profile) || + (profile->flags & PFLAG_IX_ON_NAME_ERROR)) error = 0; name = bprm->filename; goto audit; diff --git a/security/apparmor/include/policy.h b/security/apparmor/include/policy.h index 8a68226ff7f..65662e3c75c 100644 --- a/security/apparmor/include/policy.h +++ b/security/apparmor/include/policy.h @@ -56,11 +56,11 @@ enum profile_mode { APPARMOR_ENFORCE, /* enforce access rules */ APPARMOR_COMPLAIN, /* allow and log access violations */ APPARMOR_KILL, /* kill task on access violation */ + APPARMOR_UNCONFINED, /* profile set to unconfined */ }; enum profile_flags { PFLAG_HAT = 1, /* profile is a hat */ - PFLAG_UNCONFINED = 2, /* profile is an unconfined profile */ PFLAG_NULL = 4, /* profile is null learning profile */ PFLAG_IX_ON_NAME_ERROR = 8, /* fallback to ix on name lookup fail */ PFLAG_IMMUTABLE = 0x10, /* don't allow changes/replacement */ @@ -199,7 +199,7 @@ struct aa_profile { struct aa_dfa *xmatch; int xmatch_len; enum audit_mode audit; - enum profile_mode mode; + long mode; long flags; u32 path_flags; int size; @@ -240,7 +240,7 @@ ssize_t aa_remove_profiles(char *name, size_t size); #define PROF_ADD 1 #define PROF_REPLACE 0 -#define unconfined(X) ((X)->flags & PFLAG_UNCONFINED) +#define unconfined(X) ((X)->mode == APPARMOR_UNCONFINED) /** diff --git a/security/apparmor/include/policy_unpack.h b/security/apparmor/include/policy_unpack.h index 0d7ad722b8f..c214fb88b1b 100644 --- a/security/apparmor/include/policy_unpack.h +++ b/security/apparmor/include/policy_unpack.h @@ -27,6 +27,13 @@ struct aa_load_ent { void aa_load_ent_free(struct aa_load_ent *ent); struct aa_load_ent *aa_load_ent_alloc(void); +#define PACKED_FLAG_HAT 1 + +#define PACKED_MODE_ENFORCE 0 +#define PACKED_MODE_COMPLAIN 1 +#define PACKED_MODE_KILL 2 +#define PACKED_MODE_UNCONFINED 3 + int aa_unpack(void *udata, size_t size, struct list_head *lh, const char **ns); #endif /* __POLICY_INTERFACE_H */ diff --git a/security/apparmor/policy.c b/security/apparmor/policy.c index 7a80b0c7e0c..2e4e2ecb25b 100644 --- a/security/apparmor/policy.c +++ b/security/apparmor/policy.c @@ -96,6 +96,7 @@ const char *const profile_mode_names[] = { "enforce", "complain", "kill", + "unconfined", }; /** @@ -290,8 +291,9 @@ static struct aa_namespace *alloc_namespace(const char *prefix, if (!ns->unconfined) goto fail_unconfined; - ns->unconfined->flags = PFLAG_UNCONFINED | PFLAG_IX_ON_NAME_ERROR | - PFLAG_IMMUTABLE | PFLAG_NS_COUNT; + ns->unconfined->flags = PFLAG_IX_ON_NAME_ERROR | + PFLAG_IMMUTABLE | PFLAG_NS_COUNT; + ns->unconfined->mode = APPARMOR_UNCONFINED; /* ns and ns->unconfined share ns->unconfined refcount */ ns->unconfined->ns = ns; diff --git a/security/apparmor/policy_unpack.c b/security/apparmor/policy_unpack.c index ce15313896e..cac0aa07578 100644 --- a/security/apparmor/policy_unpack.c +++ b/security/apparmor/policy_unpack.c @@ -511,12 +511,16 @@ static struct aa_profile *unpack_profile(struct aa_ext *e) goto fail; if (!unpack_u32(e, &tmp, NULL)) goto fail; - if (tmp) + if (tmp & PACKED_FLAG_HAT) profile->flags |= PFLAG_HAT; if (!unpack_u32(e, &tmp, NULL)) goto fail; - if (tmp) + if (tmp == PACKED_MODE_COMPLAIN) profile->mode = APPARMOR_COMPLAIN; + else if (tmp == PACKED_MODE_KILL) + profile->mode = APPARMOR_KILL; + else if (tmp == PACKED_MODE_UNCONFINED) + profile->mode = APPARMOR_UNCONFINED; if (!unpack_u32(e, &tmp, NULL)) goto fail; if (tmp) |