#define LUSTRE_NODEMAP_DEFAULT_ID 0
+/** enums containing the types of ids contained in a nodemap
+ * kept so other modules (mgs, mdt, etc) can define the type
+ * of search easily
+ */
+
+enum nodemap_id_type {
+ NODEMAP_UID,
+ NODEMAP_GID,
+};
+
+enum nodemap_tree_type {
+ NODEMAP_FS_TO_CLIENT,
+ NODEMAP_CLIENT_TO_FS,
+};
+
+struct nodemap_pde {
+ char npe_name[LUSTRE_NODEMAP_NAME_LENGTH + 1];
+ struct proc_dir_entry *npe_proc_entry;
+ struct list_head npe_list_member;
+};
+
/** The nodemap id 0 will be the default nodemap. It will have a configuration
* set by the MGS, but no ranges will be allowed as all NIDs that do not map
* will be added to the default nodemap
struct lu_nodemap {
/* human readable ID */
- char nm_name[LUSTRE_NODEMAP_NAME_LENGTH + 1];
+ char nm_name[LUSTRE_NODEMAP_NAME_LENGTH + 1];
/* flags to govern nodemap behavior */
- bool nmf_trust_client_ids:1,
- nmf_allow_root_access:1,
- nmf_block_lookups:1,
- nmf_hmac_required:1,
- nmf_encryption_required:1;
+ bool nmf_trust_client_ids:1,
+ nmf_allow_root_access:1,
+ nmf_block_lookups:1,
+ nmf_hmac_required:1,
+ nmf_encryption_required:1;
/* unique ID set by MGS */
- int nm_id;
+ unsigned int nm_id;
/* nodemap ref counter */
- atomic_t nm_refcount;
+ atomic_t nm_refcount;
/* UID to squash unmapped UIDs */
- uid_t nm_squash_uid;
+ uid_t nm_squash_uid;
/* GID to squash unmapped GIDs */
- gid_t nm_squash_gid;
+ gid_t nm_squash_gid;
/* NID range list */
- struct list_head nm_ranges;
+ struct list_head nm_ranges;
+ /* lock for idmap red/black trees */
+ rwlock_t nm_idmap_lock;
/* UID map keyed by local UID */
- struct rb_root nm_local_to_remote_uidmap;
+ struct rb_root nm_fs_to_client_uidmap;
/* UID map keyed by remote UID */
- struct rb_root nm_remote_to_local_uidmap;
+ struct rb_root nm_client_to_fs_uidmap;
/* GID map keyed by local UID */
- struct rb_root nm_local_to_remote_gidmap;
+ struct rb_root nm_fs_to_client_gidmap;
/* GID map keyed by remote UID */
- struct rb_root nm_remote_to_local_gidmap;
- /* proc directory entry */
- struct proc_dir_entry *nm_proc_entry;
+ struct rb_root nm_client_to_fs_gidmap;
/* attached client members of this nodemap */
- struct list_head nm_exports;
+ struct mutex nm_member_list_lock;
+ struct list_head nm_member_list;
/* access by nodemap name */
- cfs_hlist_node_t nm_hash;
+ struct hlist_node nm_hash;
+ struct nodemap_pde *nm_pde_data;
+
+ /* used when unloading nodemaps */
+ struct list_head nm_list;
};
+void nodemap_activate(const bool value);
int nodemap_add(const char *nodemap_name);
int nodemap_del(const char *nodemap_name);
-
-#endif
+int nodemap_add_member(lnet_nid_t nid, struct obd_export *exp);
+void nodemap_del_member(struct obd_export *exp);
+int nodemap_parse_range(const char *range_string, lnet_nid_t range[2]);
+int nodemap_parse_idmap(char *idmap_string, __u32 idmap[2]);
+int nodemap_add_range(const char *name, const lnet_nid_t nid[2]);
+int nodemap_del_range(const char *name, const lnet_nid_t nid[2]);
+int nodemap_set_allow_root(const char *name, bool allow_root);
+int nodemap_set_trust_client_ids(const char *name, bool trust_client_ids);
+int nodemap_set_squash_uid(const char *name, uid_t uid);
+int nodemap_set_squash_gid(const char *name, gid_t gid);
+bool nodemap_can_setquota(const struct lu_nodemap *nodemap);
+int nodemap_add_idmap(const char *name, enum nodemap_id_type id_type,
+ const __u32 map[2]);
+int nodemap_del_idmap(const char *name, enum nodemap_id_type id_type,
+ const __u32 map[2]);
+__u32 nodemap_map_id(struct lu_nodemap *nodemap,
+ enum nodemap_id_type id_type,
+ enum nodemap_tree_type tree_type, __u32 id);
+ssize_t nodemap_map_acl(struct lu_nodemap *nodemap, void *buf, size_t size,
+ enum nodemap_tree_type tree_type);
+void nodemap_test_nid(lnet_nid_t nid, char *name_buf, size_t name_len);
+__u32 nodemap_test_id(lnet_nid_t nid, enum nodemap_id_type idtype,
+ __u32 client_id);
+#endif /* _LUSTRE_NODEMAP_H */