-/* -*- 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.
*
* 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.
+ * http://www.gnu.org/licenses/gpl-2.0.html
*
* GPL HEADER END
*/
* Copyright (c) 2007, 2010, Oracle and/or its affiliates. All rights reserved.
* Use is subject to license terms.
*
- * Copyright (c) 2011, Whamcloud, Inc.
+ * Copyright (c) 2011, 2015, Intel Corporation.
*/
/*
* This file is part of Lustre, http://www.lustre.org/
* 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 <lustre_net.h>
#include <lustre_sec.h>
+#include "ptlrpc_internal.h"
+
struct plain_sec {
struct ptlrpc_sec pls_base;
- cfs_rwlock_t pls_lock;
+ rwlock_t pls_lock;
struct ptlrpc_cli_ctx *pls_ctx;
};
return 0;
}
-#ifdef __KERNEL__
static void corrupt_bulk_data(struct ptlrpc_bulk_desc *desc)
{
- char *ptr;
- unsigned int off, i;
-
- for (i = 0; i < desc->bd_iov_count; i++) {
- if (desc->bd_iov[i].kiov_len == 0)
- continue;
-
- ptr = cfs_kmap(desc->bd_iov[i].kiov_page);
- off = desc->bd_iov[i].kiov_offset & ~CFS_PAGE_MASK;
- ptr[off] ^= 0x1;
- cfs_kunmap(desc->bd_iov[i].kiov_page);
- return;
- }
-}
-#else
-static void corrupt_bulk_data(struct ptlrpc_bulk_desc *desc)
-{
- unsigned int i;
+ char *ptr;
+ unsigned int off, i;
- for (i = 0; i < desc->bd_iov_count; i++) {
- if (desc->bd_iov[i].iov_len == 0)
- continue;
+ LASSERT(ptlrpc_is_bulk_desc_kiov(desc->bd_type));
- ((char *)desc->bd_iov[i].iov_base)[i] ^= 0x1;
- return;
- }
+ for (i = 0; i < desc->bd_iov_count; i++) {
+ if (BD_GET_KIOV(desc, i).kiov_len == 0)
+ continue;
+
+ ptr = kmap(BD_GET_KIOV(desc, i).kiov_page);
+ off = BD_GET_KIOV(desc, i).kiov_offset & ~PAGE_MASK;
+ ptr[off] ^= 0x1;
+ kunmap(BD_GET_KIOV(desc, i).kiov_page);
+ return;
+ }
}
-#endif /* __KERNEL__ */
/****************************************
* cli_ctx apis *
static
int plain_ctx_verify(struct ptlrpc_cli_ctx *ctx, struct ptlrpc_request *req)
{
- struct lustre_msg *msg = req->rq_repdata;
- struct plain_header *phdr;
- __u32 cksum;
- int swabbed;
- ENTRY;
+ struct lustre_msg *msg = req->rq_repdata;
+ struct plain_header *phdr;
+ __u32 cksum;
+ bool swabbed;
+ ENTRY;
if (msg->lm_bufcount != PLAIN_PACK_SEGMENTS) {
CERROR("unexpected reply buf count %u\n", msg->lm_bufcount);
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) {
- CDEBUG(D_SEC,
- "early reply checksum mismatch: %08x != %08x\n",
- cpu_to_le32(cksum), msg->lm_cksum);
- RETURN(-EINVAL);
- }
+ unsigned int hsize = 4;
+
+ cfs_crypto_hash_digest(CFS_HASH_ALG_CRC32,
+ lustre_msg_buf(msg, PLAIN_PACK_MSG_OFF, 0),
+ lustre_msg_buflen(msg, PLAIN_PACK_MSG_OFF),
+ NULL, 0, (unsigned char *)&cksum, &hsize);
+ if (cksum != msg->lm_cksum) {
+ CDEBUG(D_SEC,
+ "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 */
struct ptlrpc_bulk_sec_desc *bsdv;
struct plain_bulk_token *tokenv;
int rc;
-#ifdef __KERNEL__
int i, nob;
-#endif
+ LASSERT(ptlrpc_is_bulk_desc_kiov(desc->bd_type));
LASSERT(req->rq_pack_bulk);
LASSERT(req->rq_reqbuf->lm_bufcount == PLAIN_PACK_SEGMENTS);
LASSERT(req->rq_repdata->lm_bufcount == PLAIN_PACK_SEGMENTS);
return 0;
}
-#ifdef __KERNEL__
- /* fix the actual data size */
- for (i = 0, nob = 0; i < desc->bd_iov_count; i++) {
- if (desc->bd_iov[i].kiov_len + nob > desc->bd_nob_transferred) {
- desc->bd_iov[i].kiov_len =
- desc->bd_nob_transferred - nob;
- }
- nob += desc->bd_iov[i].kiov_len;
- }
-#endif
+ /* fix the actual data size */
+ for (i = 0, nob = 0; i < desc->bd_iov_count; i++) {
+ if (BD_GET_KIOV(desc, i).kiov_len +
+ nob > desc->bd_nob_transferred) {
+ BD_GET_KIOV(desc, i).kiov_len =
+ desc->bd_nob_transferred - nob;
+ }
+ nob += BD_GET_KIOV(desc, i).kiov_len;
+ }
rc = plain_verify_bulk_csum(desc, req->rq_flvr.u_bulk.hash.hash_alg,
tokenv);
static
struct ptlrpc_cli_ctx *plain_sec_install_ctx(struct plain_sec *plsec)
{
- struct ptlrpc_cli_ctx *ctx, *ctx_new;
+ struct ptlrpc_cli_ctx *ctx, *ctx_new;
- OBD_ALLOC_PTR(ctx_new);
+ OBD_ALLOC_PTR(ctx_new);
- cfs_write_lock(&plsec->pls_lock);
+ write_lock(&plsec->pls_lock);
- ctx = plsec->pls_ctx;
- if (ctx) {
- cfs_atomic_inc(&ctx->cc_refcount);
-
- if (ctx_new)
- OBD_FREE_PTR(ctx_new);
- } else if (ctx_new) {
- ctx = ctx_new;
-
- cfs_atomic_set(&ctx->cc_refcount, 1); /* for cache */
- ctx->cc_sec = &plsec->pls_base;
- ctx->cc_ops = &plain_ctx_ops;
- ctx->cc_expire = 0;
- ctx->cc_flags = PTLRPC_CTX_CACHED | PTLRPC_CTX_UPTODATE;
- ctx->cc_vcred.vc_uid = 0;
- cfs_spin_lock_init(&ctx->cc_lock);
- CFS_INIT_LIST_HEAD(&ctx->cc_req_list);
- CFS_INIT_LIST_HEAD(&ctx->cc_gc_chain);
-
- plsec->pls_ctx = ctx;
- cfs_atomic_inc(&plsec->pls_base.ps_nctx);
- cfs_atomic_inc(&plsec->pls_base.ps_refcount);
-
- cfs_atomic_inc(&ctx->cc_refcount); /* for caller */
- }
+ ctx = plsec->pls_ctx;
+ if (ctx) {
+ atomic_inc(&ctx->cc_refcount);
+
+ if (ctx_new)
+ OBD_FREE_PTR(ctx_new);
+ } else if (ctx_new) {
+ ctx = ctx_new;
+
+ atomic_set(&ctx->cc_refcount, 1); /* for cache */
+ ctx->cc_sec = &plsec->pls_base;
+ ctx->cc_ops = &plain_ctx_ops;
+ ctx->cc_expire = 0;
+ ctx->cc_flags = PTLRPC_CTX_CACHED | PTLRPC_CTX_UPTODATE;
+ ctx->cc_vcred.vc_uid = 0;
+ spin_lock_init(&ctx->cc_lock);
+ INIT_LIST_HEAD(&ctx->cc_req_list);
+ INIT_LIST_HEAD(&ctx->cc_gc_chain);
- cfs_write_unlock(&plsec->pls_lock);
+ plsec->pls_ctx = ctx;
+ atomic_inc(&plsec->pls_base.ps_nctx);
+ atomic_inc(&plsec->pls_base.ps_refcount);
- return ctx;
+ atomic_inc(&ctx->cc_refcount); /* for caller */
+ }
+
+ write_unlock(&plsec->pls_lock);
+
+ return ctx;
}
static
void plain_destroy_sec(struct ptlrpc_sec *sec)
{
- struct plain_sec *plsec = sec2plsec(sec);
- ENTRY;
+ struct plain_sec *plsec = sec2plsec(sec);
+ ENTRY;
- LASSERT(sec->ps_policy == &plain_policy);
- LASSERT(sec->ps_import);
- LASSERT(cfs_atomic_read(&sec->ps_refcount) == 0);
- LASSERT(cfs_atomic_read(&sec->ps_nctx) == 0);
- LASSERT(plsec->pls_ctx == NULL);
+ LASSERT(sec->ps_policy == &plain_policy);
+ LASSERT(sec->ps_import);
+ LASSERT(atomic_read(&sec->ps_refcount) == 0);
+ LASSERT(atomic_read(&sec->ps_nctx) == 0);
+ LASSERT(plsec->pls_ctx == NULL);
- class_import_put(sec->ps_import);
+ class_import_put(sec->ps_import);
- OBD_FREE_PTR(plsec);
- EXIT;
+ OBD_FREE_PTR(plsec);
+ EXIT;
}
static
/*
* initialize plain_sec
*/
- cfs_rwlock_init(&plsec->pls_lock);
- plsec->pls_ctx = NULL;
-
- sec = &plsec->pls_base;
- sec->ps_policy = &plain_policy;
- cfs_atomic_set(&sec->ps_refcount, 0);
- cfs_atomic_set(&sec->ps_nctx, 0);
- sec->ps_id = sptlrpc_get_next_secid();
- sec->ps_import = class_import_get(imp);
- sec->ps_flvr = *sf;
- cfs_spin_lock_init(&sec->ps_lock);
- CFS_INIT_LIST_HEAD(&sec->ps_gc_list);
+ rwlock_init(&plsec->pls_lock);
+ plsec->pls_ctx = NULL;
+
+ sec = &plsec->pls_base;
+ sec->ps_policy = &plain_policy;
+ atomic_set(&sec->ps_refcount, 0);
+ atomic_set(&sec->ps_nctx, 0);
+ sec->ps_id = sptlrpc_get_next_secid();
+ sec->ps_import = class_import_get(imp);
+ sec->ps_flvr = *sf;
+ spin_lock_init(&sec->ps_lock);
+ INIT_LIST_HEAD(&sec->ps_gc_list);
sec->ps_gc_interval = 0;
sec->ps_gc_next = 0;
struct vfs_cred *vcred,
int create, int remove_dead)
{
- struct plain_sec *plsec = sec2plsec(sec);
- struct ptlrpc_cli_ctx *ctx;
- ENTRY;
+ struct plain_sec *plsec = sec2plsec(sec);
+ struct ptlrpc_cli_ctx *ctx;
+ ENTRY;
- cfs_read_lock(&plsec->pls_lock);
- ctx = plsec->pls_ctx;
- if (ctx)
- cfs_atomic_inc(&ctx->cc_refcount);
- cfs_read_unlock(&plsec->pls_lock);
+ read_lock(&plsec->pls_lock);
+ ctx = plsec->pls_ctx;
+ if (ctx)
+ atomic_inc(&ctx->cc_refcount);
+ read_unlock(&plsec->pls_lock);
- if (unlikely(ctx == NULL))
- ctx = plain_sec_install_ctx(plsec);
+ if (unlikely(ctx == NULL))
+ ctx = plain_sec_install_ctx(plsec);
- RETURN(ctx);
+ RETURN(ctx);
}
static
void plain_release_ctx(struct ptlrpc_sec *sec,
struct ptlrpc_cli_ctx *ctx, int sync)
{
- LASSERT(cfs_atomic_read(&sec->ps_refcount) > 0);
- LASSERT(cfs_atomic_read(&sec->ps_nctx) > 0);
- LASSERT(cfs_atomic_read(&ctx->cc_refcount) == 0);
- LASSERT(ctx->cc_sec == sec);
+ LASSERT(atomic_read(&sec->ps_refcount) > 0);
+ LASSERT(atomic_read(&sec->ps_nctx) > 0);
+ LASSERT(atomic_read(&ctx->cc_refcount) == 0);
+ LASSERT(ctx->cc_sec == sec);
- OBD_FREE_PTR(ctx);
+ OBD_FREE_PTR(ctx);
- cfs_atomic_dec(&sec->ps_nctx);
- sptlrpc_sec_put(sec);
+ atomic_dec(&sec->ps_nctx);
+ sptlrpc_sec_put(sec);
}
static
if (uid != -1)
RETURN(0);
- cfs_write_lock(&plsec->pls_lock);
+ write_lock(&plsec->pls_lock);
ctx = plsec->pls_ctx;
plsec->pls_ctx = NULL;
- cfs_write_unlock(&plsec->pls_lock);
+ write_unlock(&plsec->pls_lock);
if (ctx)
sptlrpc_cli_ctx_put(ctx, 1);
alloc_len = lustre_msg_size_v2(PLAIN_PACK_SEGMENTS, buflens);
- if (!req->rq_reqbuf) {
- LASSERT(!req->rq_pool);
+ if (!req->rq_reqbuf) {
+ LASSERT(!req->rq_pool);
- alloc_len = size_roundup_power2(alloc_len);
- OBD_ALLOC_LARGE(req->rq_reqbuf, alloc_len);
- if (!req->rq_reqbuf)
- RETURN(-ENOMEM);
+ alloc_len = size_roundup_power2(alloc_len);
+ OBD_ALLOC_LARGE(req->rq_reqbuf, alloc_len);
+ if (!req->rq_reqbuf)
+ RETURN(-ENOMEM);
- req->rq_reqbuf_len = alloc_len;
+ req->rq_reqbuf_len = alloc_len;
} else {
LASSERT(req->rq_pool);
LASSERT(req->rq_reqbuf_len >= alloc_len);
void plain_free_reqbuf(struct ptlrpc_sec *sec,
struct ptlrpc_request *req)
{
- ENTRY;
- if (!req->rq_pool) {
- OBD_FREE_LARGE(req->rq_reqbuf, req->rq_reqbuf_len);
- req->rq_reqbuf = NULL;
- req->rq_reqbuf_len = 0;
- }
- EXIT;
+ ENTRY;
+ if (!req->rq_pool) {
+ OBD_FREE_LARGE(req->rq_reqbuf, req->rq_reqbuf_len);
+ req->rq_reqbuf = NULL;
+ req->rq_reqbuf_len = 0;
+ }
+ EXIT;
}
static
alloc_len = size_roundup_power2(alloc_len);
- OBD_ALLOC_LARGE(req->rq_repbuf, alloc_len);
- if (!req->rq_repbuf)
- RETURN(-ENOMEM);
+ OBD_ALLOC_LARGE(req->rq_repbuf, alloc_len);
+ if (!req->rq_repbuf)
+ RETURN(-ENOMEM);
- req->rq_repbuf_len = alloc_len;
- RETURN(0);
+ req->rq_repbuf_len = alloc_len;
+ RETURN(0);
}
static
/* request from pool should always have enough buffer */
LASSERT(!req->rq_pool || req->rq_reqbuf_len >= newbuf_size);
- if (req->rq_reqbuf_len < newbuf_size) {
- newbuf_size = size_roundup_power2(newbuf_size);
+ if (req->rq_reqbuf_len < newbuf_size) {
+ newbuf_size = size_roundup_power2(newbuf_size);
- OBD_ALLOC_LARGE(newbuf, newbuf_size);
- if (newbuf == NULL)
- RETURN(-ENOMEM);
+ OBD_ALLOC_LARGE(newbuf, newbuf_size);
+ if (newbuf == NULL)
+ RETURN(-ENOMEM);
- memcpy(newbuf, req->rq_reqbuf, req->rq_reqbuf_len);
+ /* 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);
- OBD_FREE_LARGE(req->rq_reqbuf, req->rq_reqbuf_len);
- req->rq_reqbuf = newbuf;
- req->rq_reqbuf_len = newbuf_size;
- req->rq_reqmsg = lustre_msg_buf(req->rq_reqbuf,
- PLAIN_PACK_MSG_OFF, 0);
- }
+ memcpy(newbuf, req->rq_reqbuf, req->rq_reqbuf_len);
- _sptlrpc_enlarge_msg_inplace(req->rq_reqbuf, PLAIN_PACK_MSG_OFF,
- newmsg_size);
- _sptlrpc_enlarge_msg_inplace(req->rq_reqmsg, segment, newsize);
+ OBD_FREE_LARGE(req->rq_reqbuf, req->rq_reqbuf_len);
+ req->rq_reqbuf = newbuf;
+ req->rq_reqbuf_len = newbuf_size;
+ req->rq_reqmsg = lustre_msg_buf(req->rq_reqbuf,
+ PLAIN_PACK_MSG_OFF, 0);
- req->rq_reqlen = newmsg_size;
- RETURN(0);
+ if (req->rq_import)
+ spin_unlock(&req->rq_import->imp_lock);
+ }
+
+ _sptlrpc_enlarge_msg_inplace(req->rq_reqbuf, PLAIN_PACK_MSG_OFF,
+ newmsg_size);
+ _sptlrpc_enlarge_msg_inplace(req->rq_reqmsg, segment, newsize);
+
+ req->rq_reqlen = newmsg_size;
+ RETURN(0);
}
/****************************************
****************************************/
static struct ptlrpc_svc_ctx plain_svc_ctx = {
- .sc_refcount = CFS_ATOMIC_INIT(1),
+ .sc_refcount = ATOMIC_INIT(1),
.sc_policy = &plain_policy,
};
-static
-int plain_accept(struct ptlrpc_request *req)
+static int plain_accept(struct ptlrpc_request *req)
{
- struct lustre_msg *msg = req->rq_reqbuf;
- struct plain_header *phdr;
- int swabbed;
- ENTRY;
+ struct lustre_msg *msg = req->rq_reqbuf;
+ struct plain_header *phdr;
+ bool swabbed;
- LASSERT(SPTLRPC_FLVR_POLICY(req->rq_flvr.sf_rpc) ==
- SPTLRPC_POLICY_PLAIN);
+ ENTRY;
+ LASSERT(SPTLRPC_FLVR_POLICY(req->rq_flvr.sf_rpc) ==
+ SPTLRPC_POLICY_PLAIN);
if (SPTLRPC_FLVR_BASE(req->rq_flvr.sf_rpc) !=
SPTLRPC_FLVR_BASE(SPTLRPC_FLVR_PLAIN) ||
req->rq_pack_bulk = 1;
}
- req->rq_reqmsg = lustre_msg_buf(msg, PLAIN_PACK_MSG_OFF, 0);
- req->rq_reqlen = msg->lm_buflens[PLAIN_PACK_MSG_OFF];
+ req->rq_reqmsg = lustre_msg_buf(msg, PLAIN_PACK_MSG_OFF, 0);
+ req->rq_reqlen = msg->lm_buflens[PLAIN_PACK_MSG_OFF];
- req->rq_svc_ctx = &plain_svc_ctx;
- cfs_atomic_inc(&req->rq_svc_ctx->sc_refcount);
+ req->rq_svc_ctx = &plain_svc_ctx;
+ atomic_inc(&req->rq_svc_ctx->sc_refcount);
- RETURN(SECSVC_OK);
+ RETURN(SECSVC_OK);
}
static
rs = req->rq_reply_state;
- if (rs) {
- /* pre-allocated */
- LASSERT(rs->rs_size >= rs_size);
- } else {
- OBD_ALLOC_LARGE(rs, rs_size);
- if (rs == NULL)
- RETURN(-ENOMEM);
+ if (rs) {
+ /* pre-allocated */
+ LASSERT(rs->rs_size >= rs_size);
+ } else {
+ OBD_ALLOC_LARGE(rs, rs_size);
+ if (rs == NULL)
+ RETURN(-ENOMEM);
- rs->rs_size = rs_size;
- }
+ rs->rs_size = rs_size;
+ }
- rs->rs_svc_ctx = req->rq_svc_ctx;
- cfs_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_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);
- lustre_init_msg_v2(rs->rs_repbuf, PLAIN_PACK_SEGMENTS, buflens, NULL);
- rs->rs_msg = lustre_msg_buf_v2(rs->rs_repbuf, PLAIN_PACK_MSG_OFF, 0);
+ lustre_init_msg_v2(rs->rs_repbuf, PLAIN_PACK_SEGMENTS, buflens, NULL);
+ rs->rs_msg = lustre_msg_buf_v2(rs->rs_repbuf, PLAIN_PACK_MSG_OFF, 0);
- req->rq_reply_state = rs;
- RETURN(0);
+ req->rq_reply_state = rs;
+ RETURN(0);
}
static
void plain_free_rs(struct ptlrpc_reply_state *rs)
{
- ENTRY;
+ ENTRY;
- LASSERT(cfs_atomic_read(&rs->rs_svc_ctx->sc_refcount) > 1);
- cfs_atomic_dec(&rs->rs_svc_ctx->sc_refcount);
+ LASSERT(atomic_read(&rs->rs_svc_ctx->sc_refcount) > 1);
+ atomic_dec(&rs->rs_svc_ctx->sc_refcount);
- if (!rs->rs_prealloc)
- OBD_FREE_LARGE(rs, rs->rs_size);
- EXIT;
+ if (!rs->rs_prealloc)
+ OBD_FREE_LARGE(rs, rs->rs_size);
+ EXIT;
}
static
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;
+ unsigned int hsize = 4;
+
+ cfs_crypto_hash_digest(CFS_HASH_ALG_CRC32,
+ lustre_msg_buf(msg, PLAIN_PACK_MSG_OFF, 0),
+ lustre_msg_buflen(msg, PLAIN_PACK_MSG_OFF),
+ NULL, 0, (unsigned char *)&msg->lm_cksum, &hsize);
+ req->rq_reply_off = 0;
}
RETURN(0);
git://git.whamcloud.com / fs / lustre-release.git / blobdiff