#ifndef _LUSTRE_NODEMAP_H
#define _LUSTRE_NODEMAP_H
+#include <lustre/lustre_idl.h>
+
#define LUSTRE_NODEMAP_NAME "nodemap"
-#define LUSTRE_NODEMAP_NAME_LENGTH 16
#define LUSTRE_NODEMAP_DEFAULT_ID 0
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_deny_unknown:1,
+ nmf_allow_root_access: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_fs_to_client_uidmap;
+ struct rb_root nm_fs_to_client_uidmap;
/* UID map keyed by remote UID */
- struct rb_root nm_client_to_fs_uidmap;
+ struct rb_root nm_client_to_fs_uidmap;
/* GID map keyed by local UID */
- struct rb_root nm_fs_to_client_gidmap;
+ struct rb_root nm_fs_to_client_gidmap;
/* GID map keyed by remote UID */
- struct rb_root nm_client_to_fs_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;
+ /* fileset the nodes of this nodemap are restricted to */
+ char nm_fileset[PATH_MAX+1];
+
+ /* used when loading/unloading nodemaps */
+ struct list_head nm_list;
+};
+
+/* Store handles to local MGC storage to save config locally. In future
+ * versions of nodemap, mgc will receive the config directly and so this might
+ * not be needed.
+ */
+struct nm_config_file {
+ struct local_oid_storage *ncf_los;
+ struct dt_object *ncf_obj;
+ struct list_head ncf_list;
};
void nodemap_activate(const bool value);
int nodemap_add(const char *nodemap_name);
int nodemap_del(const char *nodemap_name);
-struct lu_nodemap *nodemap_classify_nid(lnet_nid_t nid);
+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(const char *idmap_string, __u32 idmap[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_deny_unknown(const char *name, bool deny_unknown);
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]);
+int nodemap_set_fileset(const char *name, const char *fileset);
+char *nodemap_get_fileset(const struct lu_nodemap *nodemap);
__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);
+#ifdef HAVE_SERVER_SUPPORT
+void nodemap_test_nid(lnet_nid_t nid, char *name_buf, size_t name_len);
+#else
+#define nodemap_test_nid(nid, name_buf, name_len) do {} while(0)
+#endif
+int nodemap_test_id(lnet_nid_t nid, enum nodemap_id_type idtype,
+ __u32 client_id, __u32 *fs_id);
+
+enum nm_config_file_type {
+ NCFT_MGS,
+ NCFT_TGT,
+};
+struct nm_config_file *nm_config_file_register(const struct lu_env *env,
+ struct dt_object *obj,
+ struct local_oid_storage *los,
+ enum nm_config_file_type ncf_type);
+void nm_config_file_deregister(const struct lu_env *env,
+ struct nm_config_file *ncf,
+ enum nm_config_file_type ncf_type);
+struct lu_nodemap *nodemap_get_from_exp(struct obd_export *exp);
+void nodemap_putref(struct lu_nodemap *nodemap);
+
+#ifdef HAVE_SERVER_SUPPORT
+struct nodemap_range_tree {
+ struct interval_node *nmrt_range_interval_root;
+ unsigned int nmrt_range_highest_id;
+};
+
+struct nodemap_config {
+ /* Highest numerical lu_nodemap.nm_id defined */
+ unsigned int nmc_nodemap_highest_id;
+
+ /* Simple flag to determine if nodemaps are active */
+ bool nmc_nodemap_is_active;
+
+ /* Pointer to default nodemap as it is needed more often */
+ struct lu_nodemap *nmc_default_nodemap;
+
+ /**
+ * Lock required to access the range tree.
+ */
+ struct rw_semaphore nmc_range_tree_lock;
+ struct nodemap_range_tree nmc_range_tree;
+
+ /**
+ * Hash keyed on nodemap name containing all
+ * nodemaps
+ */
+ struct cfs_hash *nmc_nodemap_hash;
+};
+
+struct nodemap_config *nodemap_config_alloc(void);
+void nodemap_config_dealloc(struct nodemap_config *config);
+void nodemap_config_set_active_mgc(struct nodemap_config *config);
+
+int nodemap_process_idx_pages(struct nodemap_config *config, union lu_page *lip,
+ struct lu_nodemap **recent_nodemap);
+
+struct dt_device;
+int nodemap_fs_init(const struct lu_env *env, struct dt_device *dev,
+ struct obd_device *obd, struct local_oid_storage *los);
+void nodemap_fs_fini(const struct lu_env *env, struct obd_device *obd);
+#else /* disable nodemap processing in MGC of non-servers */
+static inline int nodemap_process_idx_pages(void *config,
+ union lu_page *lip,
+ struct lu_nodemap **recent_nodemap)
+{ return 0; }
+#endif /* HAVE_SERVER_SUPPORT */
+
+int nodemap_get_config_req(struct obd_device *mgs_obd,
+ struct ptlrpc_request *req);
#endif /* _LUSTRE_NODEMAP_H */
git://git.whamcloud.com / fs / lustre-release.git / blobdiff