-/* -*- mode: c; c-basic-offset: 8; indent-tabs-mode: nil; -*-
- * vim:expandtab:shiftwidth=8:tabstop=8:
+/*
+ * GPL HEADER START
+ *
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
+ *
+ * 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.
+ *
+ * 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).
*
- * Copyright (C) 2004-2006 Cluster File Systems, Inc.
- * Author: Eric Mei <ericm@clusterfs.com>
+ * 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
*
- * This file is part of Lustre, http://www.lustre.org.
+ * 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 (c) 2007, 2010, Oracle and/or its affiliates. All rights reserved.
+ * Use is subject to license terms.
*
- * 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.
+ * Copyright (c) 2011, 2014, Intel Corporation.
+ */
+/*
+ * This file is part of Lustre, http://www.lustre.org/
+ * Lustre is a trademark of Sun Microsystems, Inc.
*
- * 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.
+ * lustre/ptlrpc/sec_null.c
*
- * 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.
+ * Author: Eric Mei <ericm@clusterfs.com>
*/
-#ifndef EXPORT_SYMTAB
-# define EXPORT_SYMTAB
-#endif
#define DEBUG_SUBSYSTEM S_SEC
-#ifndef __KERNEL__
-#include <liblustre.h>
-#endif
#include <obd_support.h>
+#include <obd_cksum.h>
#include <obd_class.h>
#include <lustre_net.h>
#include <lustre_sec.h>
+#include "ptlrpc_internal.h"
+
static struct ptlrpc_sec_policy null_policy;
static struct ptlrpc_sec null_sec;
static struct ptlrpc_cli_ctx null_cli_ctx;
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);
+#if LUSTRE_VERSION_CODE < OBD_OCD_VERSION(2, 7, 53, 0)
+ if (lustre_msghdr_get_flags(req->rq_reqmsg) &
+ MSGHDR_CKSUM_INCOMPAT18)
+ cksumc = lustre_msg_calc_cksum(req->rq_repmsg, 0);
+ else
+ cksumc = lustre_msg_calc_cksum(req->rq_repmsg, 1);
+#else
+ cksumc = lustre_msg_calc_cksum(req->rq_repmsg);
+#endif
+ if (cksumc != cksums) {
+ CDEBUG(D_SEC,
+ "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_ciph != BULK_CIPH_ALG_NULL ||
- sf->sf_bulk_hash != BULK_HASH_ALG_NULL) {
- CERROR("null sec don't support bulk algorithm: %u/%u\n",
- sf->sf_bulk_ciph, sf->sf_bulk_hash);
- 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 vfs_cred *vcred,
int create, int remove_dead)
{
- atomic_inc(&null_cli_ctx.cc_refcount);
- return &null_cli_ctx;
+ atomic_inc(&null_cli_ctx.cc_refcount);
+ return &null_cli_ctx;
}
static
int alloc_size = size_roundup_power2(msgsize);
LASSERT(!req->rq_pool);
- OBD_ALLOC(req->rq_reqbuf, alloc_size);
+ OBD_ALLOC_LARGE(req->rq_reqbuf, alloc_size);
if (!req->rq_reqbuf)
return -ENOMEM;
"req %p: reqlen %d should smaller than buflen %d\n",
req, req->rq_reqlen, req->rq_reqbuf_len);
- OBD_FREE(req->rq_reqbuf, req->rq_reqbuf_len);
- req->rq_reqmsg = req->rq_reqbuf = NULL;
+ OBD_FREE_LARGE(req->rq_reqbuf, req->rq_reqbuf_len);
+ req->rq_reqbuf = NULL;
req->rq_reqbuf_len = 0;
}
-
- req->rq_reqmsg = NULL;
}
static
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);
+ OBD_ALLOC_LARGE(req->rq_repbuf, msgsize);
if (!req->rq_repbuf)
return -ENOMEM;
void null_free_repbuf(struct ptlrpc_sec *sec,
struct ptlrpc_request *req)
{
- OBD_FREE(req->rq_repbuf, req->rq_repbuf_len);
+ LASSERT(req->rq_repbuf);
+
+ OBD_FREE_LARGE(req->rq_repbuf, req->rq_repbuf_len);
req->rq_repbuf = NULL;
req->rq_repbuf_len = 0;
-
- req->rq_repmsg = NULL;
}
static
if (req->rq_reqbuf_len < newmsg_size) {
alloc_size = size_roundup_power2(newmsg_size);
- OBD_ALLOC(newbuf, alloc_size);
+ OBD_ALLOC_LARGE(newbuf, alloc_size);
if (newbuf == NULL)
return -ENOMEM;
+ /* Must lock this, so that otherwise unprotected change of
+ * rq_reqmsg is not racing with parallel processing of
+ * imp_replay_list traversing threads. See LU-3333
+ * This is a bandaid at best, we really need to deal with this
+ * in request enlarging code before unpacking that's already
+ * there */
+ if (req->rq_import)
+ spin_lock(&req->rq_import->imp_lock);
memcpy(newbuf, req->rq_reqbuf, req->rq_reqlen);
- OBD_FREE(req->rq_reqbuf, req->rq_reqbuf_len);
+ OBD_FREE_LARGE(req->rq_reqbuf, req->rq_reqbuf_len);
req->rq_reqbuf = req->rq_reqmsg = newbuf;
req->rq_reqbuf_len = alloc_size;
+
+ if (req->rq_import)
+ spin_unlock(&req->rq_import->imp_lock);
}
_sptlrpc_enlarge_msg_inplace(req->rq_reqmsg, segment, newsize);
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);
- return SECSVC_DROP;
- }
+ if (req->rq_flvr.sf_rpc != SPTLRPC_FLVR_NULL) {
+ CERROR("Invalid rpc flavor 0x%x\n", req->rq_flvr.sf_rpc);
+ return SECSVC_DROP;
+ }
- req->rq_sp_from = null_decode_sec_part(req->rq_reqbuf);
+ req->rq_sp_from = null_decode_sec_part(req->rq_reqbuf);
- req->rq_reqmsg = req->rq_reqbuf;
- req->rq_reqlen = req->rq_reqdata_len;
+ req->rq_reqmsg = req->rq_reqbuf;
+ req->rq_reqlen = req->rq_reqdata_len;
- req->rq_svc_ctx = &null_svc_ctx;
- atomic_inc(&req->rq_svc_ctx->sc_refcount);
+ req->rq_svc_ctx = &null_svc_ctx;
+ atomic_inc(&req->rq_svc_ctx->sc_refcount);
- return SECSVC_OK;
+ return SECSVC_OK;
}
static
/* pre-allocated */
LASSERT(rs->rs_size >= rs_size);
} else {
- OBD_ALLOC(rs, rs_size);
+ OBD_ALLOC_LARGE(rs, rs_size);
if (rs == NULL)
return -ENOMEM;
rs->rs_size = rs_size;
}
- rs->rs_svc_ctx = req->rq_svc_ctx;
- atomic_inc(&req->rq_svc_ctx->sc_refcount);
+ rs->rs_svc_ctx = req->rq_svc_ctx;
+ atomic_inc(&req->rq_svc_ctx->sc_refcount);
- rs->rs_repbuf = (struct lustre_msg *) (rs + 1);
- rs->rs_repbuf_len = rs_size - sizeof(*rs);
- rs->rs_msg = rs->rs_repbuf;
+ rs->rs_repbuf = (struct lustre_msg *) (rs + 1);
+ rs->rs_repbuf_len = rs_size - sizeof(*rs);
+ rs->rs_msg = rs->rs_repbuf;
- req->rq_reply_state = rs;
- return 0;
+ req->rq_reply_state = rs;
+ return 0;
}
static
void null_free_rs(struct ptlrpc_reply_state *rs)
{
- LASSERT(atomic_read(&rs->rs_svc_ctx->sc_refcount) > 1);
- atomic_dec(&rs->rs_svc_ctx->sc_refcount);
+ LASSERT_ATOMIC_GT(&rs->rs_svc_ctx->sc_refcount, 1);
+ atomic_dec(&rs->rs_svc_ctx->sc_refcount);
- if (!rs->rs_prealloc)
- OBD_FREE(rs, rs->rs_size);
+ if (!rs->rs_prealloc)
+ OBD_FREE_LARGE(rs, rs->rs_size);
}
static
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;
- return 0;
+
+ 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 {
+ __u32 cksum;
+
+#if LUSTRE_VERSION_CODE < OBD_OCD_VERSION(2, 7, 53, 0)
+ if (lustre_msghdr_get_flags(req->rq_reqmsg) &
+ MSGHDR_CKSUM_INCOMPAT18)
+ cksum = lustre_msg_calc_cksum(rs->rs_repbuf, 0);
+ else
+ cksum = lustre_msg_calc_cksum(rs->rs_repbuf, 1);
+#else
+ cksum = lustre_msg_calc_cksum(rs->rs_repbuf);
+#endif
+ lustre_msg_set_cksum(rs->rs_repbuf, cksum);
+ 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_policy = &null_policy;
- atomic_set(&null_sec.ps_refcount, 1); /* always busy */
- 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_ciph = BULK_CIPH_ALG_NULL;
- null_sec.ps_flvr.sf_bulk_hash = BULK_HASH_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" */
- CFS_INIT_LIST_HEAD(&null_sec.ps_gc_list);
- null_sec.ps_gc_interval = 0;
- null_sec.ps_gc_next = 0;
-
- hlist_add_head(&null_cli_ctx.cc_cache, &__list);
- atomic_set(&null_cli_ctx.cc_refcount, 1); /* for hash */
- null_cli_ctx.cc_sec = &null_sec;
- null_cli_ctx.cc_ops = &null_ctx_ops;
- null_cli_ctx.cc_expire = 0;
- null_cli_ctx.cc_flags = PTLRPC_CTX_CACHED | PTLRPC_CTX_ETERNAL |
- PTLRPC_CTX_UPTODATE;
- null_cli_ctx.cc_vcred.vc_uid = 0;
- spin_lock_init(&null_cli_ctx.cc_lock);
- CFS_INIT_LIST_HEAD(&null_cli_ctx.cc_req_list);
- CFS_INIT_LIST_HEAD(&null_cli_ctx.cc_gc_chain);
+ static HLIST_HEAD(__list);
+
+ null_sec.ps_policy = &null_policy;
+ atomic_set(&null_sec.ps_refcount, 1); /* always busy */
+ null_sec.ps_id = -1;
+ null_sec.ps_import = NULL;
+ null_sec.ps_flvr.sf_rpc = SPTLRPC_FLVR_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);
+ null_sec.ps_gc_interval = 0;
+ null_sec.ps_gc_next = 0;
+
+ hlist_add_head(&null_cli_ctx.cc_cache, &__list);
+ atomic_set(&null_cli_ctx.cc_refcount, 1); /* for hash */
+ null_cli_ctx.cc_sec = &null_sec;
+ null_cli_ctx.cc_ops = &null_ctx_ops;
+ null_cli_ctx.cc_expire = 0;
+ null_cli_ctx.cc_flags = PTLRPC_CTX_CACHED | PTLRPC_CTX_ETERNAL |
+ 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);
}
int sptlrpc_null_init(void)
git://git.whamcloud.com / fs / lustre-release.git / blobdiff