- struct mdd_object *mdd_pobj, *mdd_cobj;
- struct md_ucred *uc = NULL;
- struct lu_attr *la = NULL;
- int check_create, check_link;
- int check_unlink;
- int check_rename_src, check_rename_tar;
- int check_vtx_part, check_vtx_full;
- int check_rgetfacl;
- int rc = 0;
- ENTRY;
-
- LASSERT(cobj);
- mdd_cobj = md2mdd_obj(cobj);
-
- /* For cross_open case, the "mask" is open flags,
- * so convert it to permission mask first.
- * XXX: MDS_OPEN_CROSS must be NOT equal to permission mask MAY_*. */
- if (unlikely(mask & MDS_OPEN_CROSS)) {
- la = &mdd_env_info(env)->mti_la;
- rc = mdd_la_get(env, mdd_cobj, la, BYPASS_CAPA);
- if (rc)
- RETURN(rc);
-
- mask = accmode(env, la, mask & ~MDS_OPEN_CROSS);
- }
-
- check_create = mask & MAY_CREATE;
- check_link = mask & MAY_LINK;
- check_unlink = mask & MAY_UNLINK;
- check_rename_src = mask & MAY_RENAME_SRC;
- check_rename_tar = mask & MAY_RENAME_TAR;
- check_vtx_part = mask & MAY_VTX_PART;
- check_vtx_full = mask & MAY_VTX_FULL;
- check_rgetfacl = mask & MAY_RGETFACL;
-
- mask &= ~(MAY_CREATE | MAY_LINK |
- MAY_UNLINK |
- MAY_RENAME_SRC | MAY_RENAME_TAR |
- MAY_VTX_PART | MAY_VTX_FULL |
- MAY_RGETFACL);
-
- rc = mdd_permission_internal_locked(env, mdd_cobj, NULL, mask,
- MOR_TGT_CHILD);
-
- if (!rc && (check_create || check_link))
- rc = mdd_may_create(env, mdd_cobj, NULL, 1, check_link);
-
- if (!rc && check_unlink) {
- LASSERT(ma);
- rc = mdd_may_unlink(env, mdd_cobj, ma);
- }
-
- if (!rc && (check_rename_src || check_rename_tar)) {
- LASSERT(pobj);
- LASSERT(ma);
- mdd_pobj = md2mdd_obj(pobj);
- rc = mdd_may_delete(env, mdd_pobj, mdd_cobj, ma, 1,
- check_rename_tar);
- }
-
- if (!rc && (check_vtx_part || check_vtx_full)) {
- uc = md_ucred(env);
- LASSERT(ma);
- if (likely(!la)) {
- la = &mdd_env_info(env)->mti_la;
- rc = mdd_la_get(env, mdd_cobj, la, BYPASS_CAPA);
- if (rc)
- RETURN(rc);
- }
-
- if (!(la->la_mode & S_ISVTX) || (la->la_uid == uc->mu_fsuid) ||
- (check_vtx_full && (ma->ma_attr.la_valid & LA_UID) &&
- (ma->ma_attr.la_uid == uc->mu_fsuid))) {
- ma->ma_attr_flags |= MDS_VTX_BYPASS;
- } else {
- ma->ma_attr_flags &= ~MDS_VTX_BYPASS;
- if (check_vtx_full)
- rc = -EPERM;
- }
- }
-
- if (unlikely(!rc && check_rgetfacl)) {
- if (likely(!uc))
- uc = md_ucred(env);
-
- if (likely(!la)) {
- la = &mdd_env_info(env)->mti_la;
- rc = mdd_la_get(env, mdd_cobj, la, BYPASS_CAPA);
- if (rc)
- RETURN(rc);
- }
-
- if (la->la_uid != uc->mu_fsuid &&
- !mdd_capable(uc, CFS_CAP_FOWNER))
- rc = -EPERM;
- }
-
- RETURN(rc);
-}
-
-int mdd_capa_get(const struct lu_env *env, struct md_object *obj,
- struct lustre_capa *capa, int renewal)
-{
- struct mdd_object *mdd_obj = md2mdd_obj(obj);
- struct obd_capa *oc;
- int rc = 0;
- ENTRY;
-
- oc = mdo_capa_get(env, mdd_obj, renewal ? capa : NULL,
- capa->lc_opc);
- if (IS_ERR(oc)) {
- rc = PTR_ERR(oc);
- } else if (likely(oc != NULL)) {
- capa_cpy(capa, oc);
- capa_put(oc);
- }
-
- RETURN(rc);
+ struct mdd_object *mdd_pobj = NULL;
+ struct mdd_object *mdd_cobj;
+ struct lu_ucred *uc = NULL;
+ struct lu_attr *pattr = NULL;
+ struct lu_attr *cattr = MDD_ENV_VAR(env, cattr);
+ int rc = 0;
+ ENTRY;
+
+ LASSERT(cobj);
+ if (pobj != NULL) {
+ mdd_pobj = md2mdd_obj(pobj);
+ pattr = MDD_ENV_VAR(env, pattr);
+ rc = mdd_la_get(env, mdd_pobj, pattr);
+ if (rc)
+ RETURN(rc);
+ }
+
+ mdd_cobj = md2mdd_obj(cobj);
+ rc = mdd_la_get(env, mdd_cobj, cattr);
+ if (rc)
+ RETURN(rc);
+
+ /* For cross_open case, the "mask" is open flags,
+ * so convert it to permission mask first.
+ * XXX: MDS_OPEN_CROSS must be NOT equal to permission mask MAY_*. */
+ if (unlikely(mask & MDS_OPEN_CROSS))
+ mask = accmode(env, cattr, mask & ~MDS_OPEN_CROSS);
+
+ rc = mdd_permission_internal_locked(env, mdd_cobj, cattr,
+ mask & ~MAY_RGETFACL,
+ MOR_TGT_CHILD);
+
+ if (unlikely(rc == 0 && (mask & MAY_RGETFACL))) {
+ if (likely(!uc))
+ uc = lu_ucred_assert(env);
+
+ if (cattr->la_uid != uc->uc_fsuid &&
+ !md_capable(uc, CFS_CAP_FOWNER))
+ rc = -EPERM;
+ }
+
+ RETURN(rc);