/* -*- mode: c; c-basic-offset: 8; indent-tabs-mode: nil; -*-
* vim:expandtab:shiftwidth=8:tabstop=8:
*
- * Copyright (C) 2004-2006 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_null.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_svc_ctx null_svc_ctx;
/*
- * null sec temporarily use the third byte of lm_secflvr to identify
+ * we can temporarily use the topmost 8-bits of lm_secflvr to identify
* the source sec part.
*/
static inline
void null_encode_sec_part(struct lustre_msg *msg, enum lustre_sec_part sp)
{
- msg->lm_secflvr |= (((__u32) sp) & 0xFF) << 16;
+ msg->lm_secflvr |= (((__u32) sp) & 0xFF) << 24;
}
static inline
enum lustre_sec_part null_decode_sec_part(struct lustre_msg *msg)
{
- switch (msg->lm_magic) {
- case LUSTRE_MSG_MAGIC_V2:
- return (msg->lm_secflvr >> 16) & 0xFF;
- case LUSTRE_MSG_MAGIC_V2_SWABBED:
- return (msg->lm_secflvr >> 8) & 0xFF;
- default:
- return LUSTRE_SP_ANY;
- }
+ return (msg->lm_secflvr >> 24) & 0xFF;
}
-static
-int null_ctx_refresh(struct ptlrpc_cli_ctx *ctx)
+static int null_ctx_refresh(struct ptlrpc_cli_ctx *ctx)
{
/* should never reach here */
LBUG();
static
int null_ctx_sign(struct ptlrpc_cli_ctx *ctx, struct ptlrpc_request *req)
{
- if (req->rq_reqbuf->lm_magic != LUSTRE_MSG_MAGIC_V1) {
- req->rq_reqbuf->lm_secflvr = SPTLRPC_FLVR_NULL;
+ req->rq_reqbuf->lm_secflvr = SPTLRPC_FLVR_NULL;
- if (!req->rq_import->imp_dlm_fake) {
- struct obd_device *obd = req->rq_import->imp_obd;
- null_encode_sec_part(req->rq_reqbuf,
- obd->u.cli.cl_sec_part);
- }
+ if (!req->rq_import->imp_dlm_fake) {
+ struct obd_device *obd = req->rq_import->imp_obd;
+ null_encode_sec_part(req->rq_reqbuf,
+ obd->u.cli.cl_sp_me);
}
req->rq_reqdata_len = req->rq_reqlen;
return 0;
static
int null_ctx_verify(struct ptlrpc_cli_ctx *ctx, struct ptlrpc_request *req)
{
- req->rq_repmsg = req->rq_repbuf;
+ __u32 cksums, cksumc;
+
+ LASSERT(req->rq_repdata);
+
+ req->rq_repmsg = req->rq_repdata;
req->rq_replen = req->rq_repdata_len;
- return 0;
-}
-static struct ptlrpc_ctx_ops null_ctx_ops = {
- .refresh = null_ctx_refresh,
- .sign = null_ctx_sign,
- .verify = null_ctx_verify,
-};
+ if (req->rq_early) {
+ cksums = lustre_msg_get_cksum(req->rq_repdata);
+ cksumc = lustre_msg_calc_cksum(req->rq_repmsg);
+ if (cksumc != cksums) {
+ CWARN("early reply checksum mismatch: %08x != %08x\n",
+ cksumc, cksums);
+ return -EINVAL;
+ }
+ }
-static struct ptlrpc_svc_ctx null_svc_ctx = {
- .sc_refcount = ATOMIC_INIT(1),
- .sc_policy = &null_policy,
-};
+ return 0;
+}
static
struct ptlrpc_sec *null_create_sec(struct obd_import *imp,
struct ptlrpc_svc_ctx *svc_ctx,
struct sptlrpc_flavor *sf)
{
- LASSERT(RPC_FLVR_POLICY(sf->sf_rpc) == SPTLRPC_POLICY_NULL);
-
- if (sf->sf_bulk_priv != BULK_PRIV_ALG_NULL ||
- sf->sf_bulk_csum != BULK_CSUM_ALG_NULL) {
- CERROR("null sec don't support bulk algorithm: %u/%u\n",
- sf->sf_bulk_priv, sf->sf_bulk_csum);
- return NULL;
- }
+ LASSERT(SPTLRPC_FLVR_POLICY(sf->sf_rpc) == SPTLRPC_POLICY_NULL);
/* general layer has take a module reference for us, because we never
* really destroy the sec, simply release the reference here.
struct ptlrpc_request *req,
int msgsize)
{
+ /* add space for early replied */
+ msgsize += lustre_msg_early_size();
+
msgsize = size_roundup_power2(msgsize);
OBD_ALLOC(req->rq_repbuf, msgsize);
void null_free_repbuf(struct ptlrpc_sec *sec,
struct ptlrpc_request *req)
{
+ LASSERT(req->rq_repbuf);
+
OBD_FREE(req->rq_repbuf, req->rq_repbuf_len);
req->rq_repbuf = NULL;
req->rq_repbuf_len = 0;
return 0;
}
+static struct ptlrpc_svc_ctx null_svc_ctx = {
+ .sc_refcount = ATOMIC_INIT(1),
+ .sc_policy = &null_policy,
+};
+
static
int null_accept(struct ptlrpc_request *req)
{
- LASSERT(RPC_FLVR_POLICY(req->rq_flvr.sf_rpc) == SPTLRPC_POLICY_NULL);
+ LASSERT(SPTLRPC_FLVR_POLICY(req->rq_flvr.sf_rpc) ==
+ SPTLRPC_POLICY_NULL);
if (req->rq_flvr.sf_rpc != SPTLRPC_FLVR_NULL) {
CERROR("Invalid rpc flavor 0x%x\n", req->rq_flvr.sf_rpc);
struct ptlrpc_reply_state *rs = req->rq_reply_state;
LASSERT(rs);
- if (rs->rs_repbuf->lm_magic != LUSTRE_MSG_MAGIC_V1)
- rs->rs_repbuf->lm_secflvr = SPTLRPC_FLVR_NULL;
+
+ rs->rs_repbuf->lm_secflvr = SPTLRPC_FLVR_NULL;
rs->rs_repdata_len = req->rq_replen;
+
+ if (likely(req->rq_packed_final)) {
+ if (lustre_msghdr_get_flags(req->rq_reqmsg) & MSGHDR_AT_SUPPORT)
+ req->rq_reply_off = lustre_msg_early_size();
+ else
+ req->rq_reply_off = 0;
+ } else {
+ lustre_msg_set_cksum(rs->rs_repbuf,
+ lustre_msg_calc_cksum(rs->rs_repbuf));
+ req->rq_reply_off = 0;
+ }
+
return 0;
}
+static struct ptlrpc_ctx_ops null_ctx_ops = {
+ .refresh = null_ctx_refresh,
+ .sign = null_ctx_sign,
+ .verify = null_ctx_verify,
+};
+
static struct ptlrpc_sec_cops null_sec_cops = {
.create_sec = null_create_sec,
.destroy_sec = null_destroy_sec,
.sp_sops = &null_sec_sops,
};
-static
-void null_init_internal(void)
+static void null_init_internal(void)
{
static HLIST_HEAD(__list);
null_sec.ps_id = -1;
null_sec.ps_import = NULL;
null_sec.ps_flvr.sf_rpc = SPTLRPC_FLVR_NULL;
- null_sec.ps_flvr.sf_bulk_priv = BULK_PRIV_ALG_NULL;
- null_sec.ps_flvr.sf_bulk_csum = BULK_CSUM_ALG_NULL;
null_sec.ps_flvr.sf_flags = 0;
null_sec.ps_part = LUSTRE_SP_ANY;
null_sec.ps_dying = 0;
spin_lock_init(&null_sec.ps_lock);
atomic_set(&null_sec.ps_nctx, 1); /* for "null_cli_ctx" */
- INIT_LIST_HEAD(&null_sec.ps_gc_list);
+ CFS_INIT_LIST_HEAD(&null_sec.ps_gc_list);
null_sec.ps_gc_interval = 0;
null_sec.ps_gc_next = 0;
PTLRPC_CTX_UPTODATE;
null_cli_ctx.cc_vcred.vc_uid = 0;
spin_lock_init(&null_cli_ctx.cc_lock);
- INIT_LIST_HEAD(&null_cli_ctx.cc_req_list);
- INIT_LIST_HEAD(&null_cli_ctx.cc_gc_chain);
+ CFS_INIT_LIST_HEAD(&null_cli_ctx.cc_req_list);
+ CFS_INIT_LIST_HEAD(&null_cli_ctx.cc_gc_chain);
}
int sptlrpc_null_init(void)
git://git.whamcloud.com / fs / lustre-release.git / blobdiff