/* -*- mode: c; c-basic-offset: 8; indent-tabs-mode: nil; -*-
* vim:expandtab:shiftwidth=8:tabstop=8:
*
- * Copyright (C) 2005 Cluster File Systems, Inc.
- * Author: Lai Siyao <lsy@clusterfs.com>
+ * GPL HEADER START
*
- * This file is part of Lustre, http://www.lustre.org.
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
- * Lustre is free software; you can redistribute it and/or
- * modify it under the terms of version 2 of the GNU General Public
- * License as published by the Free Software Foundation.
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 only,
+ * as published by the Free Software Foundation.
*
- * Lustre is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * General Public License version 2 for more details (a copy is included
+ * in the LICENSE file that accompanied this code).
*
- * You should have received a copy of the GNU General Public License
- * along with Lustre; if not, write to the Free Software
- * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ * You should have received a copy of the GNU General Public License
+ * version 2 along with this program; If not, see
+ * http://www.sun.com/software/products/lustre/docs/GPLv2.pdf
*
- * Lustre capability support.
+ * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
+ * CA 95054 USA or visit www.sun.com if you need additional information or
+ * have any questions.
+ *
+ * GPL HEADER END
+ */
+/*
+ * Copyright 2008 Sun Microsystems, Inc. All rights reserved
+ * Use is subject to license terms.
+ */
+/*
+ * This file is part of Lustre, http://www.lustre.org/
+ * Lustre is a trademark of Sun Microsystems, Inc.
+ *
+ * lustre/include/lustre_capa.h
+ *
+ * Author: Lai Siyao <lsy@clusterfs.com>
*/
#ifndef __LINUX_CAPA_H_
CAPA_SITE_MAX
};
-static inline __u64 capa_opc(struct lustre_capa *capa)
-{
- return capa->lc_opc;
-}
-
-static inline __u32 capa_uid(struct lustre_capa *capa)
+static inline struct lu_fid *capa_fid(struct lustre_capa *capa)
{
- return capa->lc_uid;
+ return &capa->lc_fid;
}
-static inline struct lu_fid *capa_fid(struct lustre_capa *capa)
+static inline __u64 capa_opc(struct lustre_capa *capa)
{
- return &capa->lc_fid;
+ return capa->lc_opc;
}
-static inline __u32 capa_keyid(struct lustre_capa *capa)
+static inline __u64 capa_uid(struct lustre_capa *capa)
{
- return capa->lc_keyid;
+ return capa->lc_uid;
}
-static inline __u64 capa_expiry(struct lustre_capa *capa)
+static inline __u64 capa_gid(struct lustre_capa *capa)
{
- return capa->lc_expiry;
+ return capa->lc_gid;
}
static inline __u32 capa_flags(struct lustre_capa *capa)
static inline __u32 capa_alg(struct lustre_capa *capa)
{
- __u32 alg = capa->lc_flags;
+ return (capa->lc_flags >> 24);
+}
- return alg >> 24;
+static inline __u32 capa_keyid(struct lustre_capa *capa)
+{
+ return capa->lc_keyid;
}
static inline __u64 capa_key_mdsid(struct lustre_capa_key *key)
return key->lk_keyid;
}
+static inline __u32 capa_timeout(struct lustre_capa *capa)
+{
+ return capa->lc_timeout;
+}
+
+static inline __u32 capa_expiry(struct lustre_capa *capa)
+{
+ return capa->lc_expiry;
+}
+
#define DEBUG_CAPA(level, c, fmt, args...) \
do { \
-CDEBUG(level, fmt " capability@%p uid %u opc "LPX64" fid "DFID" keyid %u " \
- "expiry "LPU64" flags %u alg %d\n", \
- ##args, c, capa_uid(c), capa_opc(c), PFID(capa_fid(c)), capa_keyid(c), \
- capa_expiry(c), capa_flags(c), capa_alg(c)); \
+CDEBUG(level, fmt " capability@%p fid "DFID" opc "LPX64" uid "LPU64" gid " \
+ LPU64" flags %u alg %d keyid %u timeout %u expiry %u\n", \
+ ##args, c, PFID(capa_fid(c)), capa_opc(c), capa_uid(c), capa_gid(c), \
+ capa_flags(c), capa_alg(c), capa_keyid(c), capa_timeout(c), \
+ capa_expiry(c)); \
} while (0)
#define DEBUG_CAPA_KEY(level, k, fmt, args...) \
int alive);
int capa_hmac(__u8 *hmac, struct lustre_capa *capa, __u8 *key);
+int capa_encrypt_id(__u32 *d, __u32 *s, __u8 *key, int keylen);
+int capa_decrypt_id(__u32 *d, __u32 *s, __u8 *key, int keylen);
void capa_cpy(void *dst, struct obd_capa *ocapa);
-
-char *dump_capa_content(char *buf, char *key, int len);
-
static inline struct obd_capa *alloc_capa(int site)
{
#ifdef __KERNEL__
struct obd_capa *ocapa;
- OBD_SLAB_ALLOC(ocapa, capa_cachep, SLAB_KERNEL, sizeof(*ocapa));
- if (ocapa) {
- atomic_set(&ocapa->c_refc, 0);
- spin_lock_init(&ocapa->c_lock);
- INIT_LIST_HEAD(&ocapa->c_list);
- ocapa->c_site = site;
- }
- return ocapa;
-#else
- return NULL;
-#endif
-}
+ if (unlikely(site != CAPA_SITE_CLIENT && site != CAPA_SITE_SERVER))
+ return ERR_PTR(-EINVAL);
-static inline void free_capa(struct obd_capa *ocapa)
-{
-#ifdef __KERNEL__
- if (atomic_read(&ocapa->c_refc)) {
- DEBUG_CAPA(D_ERROR, &ocapa->c_capa, "refc %d for",
- atomic_read(&ocapa->c_refc));
- LBUG();
- }
- OBD_SLAB_FREE(ocapa, capa_cachep, sizeof(*ocapa));
+ OBD_SLAB_ALLOC_PTR(ocapa, capa_cachep);
+ if (unlikely(!ocapa))
+ return ERR_PTR(-ENOMEM);
+
+ CFS_INIT_LIST_HEAD(&ocapa->c_list);
+ atomic_set(&ocapa->c_refc, 1);
+ spin_lock_init(&ocapa->c_lock);
+ ocapa->c_site = site;
+ if (ocapa->c_site == CAPA_SITE_CLIENT)
+ CFS_INIT_LIST_HEAD(&ocapa->u.cli.lli_list);
+ else
+ CFS_INIT_HLIST_NODE(&ocapa->u.tgt.c_hash);
+
+ return ocapa;
#else
+ return ERR_PTR(-EOPNOTSUPP);
#endif
}
DEBUG_CAPA(D_ERROR, &ocapa->c_capa, "refc is 0 for");
LBUG();
}
- atomic_dec(&ocapa->c_refc);
+
+ if (atomic_dec_and_test(&ocapa->c_refc)) {
+ LASSERT(list_empty(&ocapa->c_list));
+ if (ocapa->c_site == CAPA_SITE_CLIENT) {
+ LASSERT(list_empty(&ocapa->u.cli.lli_list));
+ } else {
+ struct hlist_node *hnode;
+
+ hnode = &ocapa->u.tgt.c_hash;
+ LASSERT(!hnode->next && !hnode->pprev);
+ }
+ OBD_SLAB_FREE(ocapa, capa_cachep, sizeof(*ocapa));
+ }
}
static inline int open_flags_to_accmode(int flags)
cfs_time_seconds(expiry));
}
+static inline int capa_is_expired_sec(struct lustre_capa *capa)
+{
+ return (capa->lc_expiry - cfs_time_current_sec() <= 0);
+}
+
static inline int capa_is_expired(struct obd_capa *ocapa)
{
return cfs_time_beforeq(ocapa->c_expiry, cfs_time_current());
struct lustre_capa_key k_key;
};
+enum {
+ LC_ID_NONE = 0,
+ LC_ID_PLAIN = 1,
+ LC_ID_CONVERT = 2
+};
+
#define BYPASS_CAPA (struct lustre_capa *)ERR_PTR(-ENOENT)
#endif /* __LINUX_CAPA_H_ */
git://git.whamcloud.com / fs / lustre-release.git / blobdiff