/* -*- mode: c; c-basic-offset: 8; indent-tabs-mode: nil; -*-
* vim:expandtab:shiftwidth=8:tabstop=8:
*
- * Copyright (C) 2006-2007 Cluster File Systems, Inc.
- * Author: Eric Mei <ericm@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
+ *
+ * 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/ptlrpc/sec_plain.c
+ *
+ * Author: Eric Mei <ericm@clusterfs.com>
*/
#ifndef EXPORT_SYMTAB
#endif
#include <obd_support.h>
+#include <obd_cksum.h>
#include <obd_class.h>
#include <lustre_net.h>
#include <lustre_sec.h>
static struct ptlrpc_ctx_ops plain_ctx_ops;
static struct ptlrpc_svc_ctx plain_svc_ctx;
+static unsigned int plain_at_offset;
+
/*
* flavor flags (maximum 8 flags)
*/
static
int plain_ctx_verify(struct ptlrpc_cli_ctx *ctx, struct ptlrpc_request *req)
{
- struct lustre_msg *msg = req->rq_repbuf;
+ struct lustre_msg *msg = req->rq_repdata;
+ __u32 cksum;
ENTRY;
if (msg->lm_bufcount != PLAIN_PACK_SEGMENTS) {
RETURN(-EPROTO);
}
- /* whether we sent with bulk or not, we expect the same in reply */
- if (!equi(req->rq_pack_bulk == 1,
- PLAIN_WFLVR_HAS_BULK(msg->lm_secflvr))) {
- CERROR("%s bulk checksum in reply\n",
- req->rq_pack_bulk ? "Missing" : "Unexpected");
- RETURN(-EPROTO);
- }
+ if (unlikely(req->rq_early)) {
+ cksum = crc32_le(!(__u32) 0,
+ lustre_msg_buf(msg, PLAIN_PACK_MSG_OFF, 0),
+ lustre_msg_buflen(msg, PLAIN_PACK_MSG_OFF));
+ if (cksum != msg->lm_cksum) {
+ CWARN("early reply checksum mismatch: %08x != %08x\n",
+ cpu_to_le32(cksum), msg->lm_cksum);
+ RETURN(-EINVAL);
+ }
+ } else {
+ /* whether we sent with bulk or not, we expect the same
+ * in reply, except for early reply */
+ if (!req->rq_early &&
+ !equi(req->rq_pack_bulk == 1,
+ PLAIN_WFLVR_HAS_BULK(msg->lm_secflvr))) {
+ CERROR("%s bulk checksum in reply\n",
+ req->rq_pack_bulk ? "Missing" : "Unexpected");
+ RETURN(-EPROTO);
+ }
- if (req->rq_pack_bulk &&
- bulk_sec_desc_unpack(msg, PLAIN_PACK_BULK_OFF)) {
- CERROR("Mal-formed bulk checksum reply\n");
- RETURN(-EINVAL);
+ if (PLAIN_WFLVR_HAS_BULK(msg->lm_secflvr) &&
+ bulk_sec_desc_unpack(msg, PLAIN_PACK_BULK_OFF)) {
+ CERROR("Mal-formed bulk checksum reply\n");
+ RETURN(-EINVAL);
+ }
}
req->rq_repmsg = lustre_msg_buf(msg, PLAIN_PACK_MSG_OFF, 0);
- req->rq_replen = msg->lm_buflens[PLAIN_PACK_MSG_OFF];
+ req->rq_replen = lustre_msg_buflen(msg, PLAIN_PACK_MSG_OFF);
RETURN(0);
}
{
LASSERT(req->rq_pack_bulk);
LASSERT(req->rq_reqbuf->lm_bufcount == PLAIN_PACK_SEGMENTS);
- LASSERT(req->rq_repbuf->lm_bufcount == PLAIN_PACK_SEGMENTS);
+ LASSERT(req->rq_repdata->lm_bufcount == PLAIN_PACK_SEGMENTS);
return bulk_csum_cli_reply(desc, req->rq_bulk_read,
req->rq_reqbuf, PLAIN_PACK_BULK_OFF,
- req->rq_repbuf, PLAIN_PACK_BULK_OFF);
+ req->rq_repdata, PLAIN_PACK_BULK_OFF);
}
/****************************************
/*
* initialize plain_sec
*/
- plsec->pls_lock = RW_LOCK_UNLOCKED;
+ rwlock_init(&plsec->pls_lock);
plsec->pls_ctx = NULL;
sec = &plsec->pls_base;
sec->ps_id = sptlrpc_get_next_secid();
sec->ps_import = class_import_get(imp);
sec->ps_flvr = *sf;
- sec->ps_lock = SPIN_LOCK_UNLOCKED;
+ spin_lock_init(&sec->ps_lock);
CFS_INIT_LIST_HEAD(&sec->ps_gc_list);
sec->ps_gc_interval = 0;
sec->ps_gc_next = 0;
struct ptlrpc_request *req,
int msgsize)
{
- int buflens[PLAIN_PACK_SEGMENTS] = { 0, };
+ __u32 buflens[PLAIN_PACK_SEGMENTS] = { 0, };
int alloc_len;
ENTRY;
struct ptlrpc_request *req,
int msgsize)
{
- int buflens[PLAIN_PACK_SEGMENTS] = { 0, };
+ __u32 buflens[PLAIN_PACK_SEGMENTS] = { 0, };
int alloc_len;
ENTRY;
if (req->rq_pack_bulk) {
LASSERT(req->rq_bulk_read || req->rq_bulk_write);
-
buflens[PLAIN_PACK_BULK_OFF] = bulk_sec_desc_size(
req->rq_flvr.sf_bulk_hash, 0,
req->rq_bulk_read);
}
alloc_len = lustre_msg_size_v2(PLAIN_PACK_SEGMENTS, buflens);
+
+ /* add space for early reply */
+ alloc_len += plain_at_offset;
+
alloc_len = size_roundup_power2(alloc_len);
OBD_ALLOC(req->rq_repbuf, alloc_len);
{
struct ptlrpc_reply_state *rs;
struct ptlrpc_bulk_sec_desc *bsd;
- int buflens[PLAIN_PACK_SEGMENTS] = { 0, };
+ __u32 buflens[PLAIN_PACK_SEGMENTS] = { 0, };
int rs_size = sizeof(*rs);
ENTRY;
msg->lm_secflvr |= PLAIN_WFLVR_FLAG_BULK;
rs->rs_repdata_len = len;
+
+ if (likely(req->rq_packed_final)) {
+ if (lustre_msghdr_get_flags(req->rq_reqmsg) & MSGHDR_AT_SUPPORT)
+ req->rq_reply_off = plain_at_offset;
+ else
+ req->rq_reply_off = 0;
+ } else {
+ msg->lm_cksum = crc32_le(!(__u32) 0,
+ lustre_msg_buf(msg, PLAIN_PACK_MSG_OFF, 0),
+ lustre_msg_buflen(msg, PLAIN_PACK_MSG_OFF));
+ req->rq_reply_off = 0;
+ }
+
RETURN(0);
}
int sptlrpc_plain_init(void)
{
+ __u32 buflens[PLAIN_PACK_SEGMENTS] = { 0, };
int rc;
+ buflens[PLAIN_PACK_MSG_OFF] = lustre_msg_early_size();
+ plain_at_offset = lustre_msg_size_v2(PLAIN_PACK_SEGMENTS, buflens);
+
rc = sptlrpc_register_policy(&plain_policy);
if (rc)
CERROR("failed to register: %d\n", rc);
git://git.whamcloud.com / fs / lustre-release.git / blobdiff