*
* 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, 2012, Intel Corporation.
+ * Copyright (c) 2011, 2014, Intel Corporation.
*/
/*
* This file is part of Lustre, http://www.lustre.org/
#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 inline
void null_encode_sec_part(struct lustre_msg *msg, enum lustre_sec_part sp)
{
- msg->lm_secflvr |= (((__u32) sp) & 0xFF) << 24;
+ msg->lm_secflvr |= (((__u32) sp) & 0xFF) << 24;
}
static inline
enum lustre_sec_part null_decode_sec_part(struct lustre_msg *msg)
{
- return (msg->lm_secflvr >> 24) & 0xFF;
+ return (msg->lm_secflvr >> 24) & 0xFF;
}
static int null_ctx_refresh(struct ptlrpc_cli_ctx *ctx)
{
- /* should never reach here */
- LBUG();
- return 0;
+ /* should never reach here */
+ LBUG();
+ return 0;
}
static
int null_ctx_sign(struct ptlrpc_cli_ctx *ctx, struct ptlrpc_request *req)
{
- 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_sp_me);
- }
- req->rq_reqdata_len = req->rq_reqlen;
- return 0;
+ 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_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)
{
- __u32 cksums, cksumc;
-
- LASSERT(req->rq_repdata);
-
- req->rq_repmsg = req->rq_repdata;
- req->rq_replen = req->rq_repdata_len;
-
- if (req->rq_early) {
- cksums = lustre_msg_get_cksum(req->rq_repdata);
-#if LUSTRE_VERSION_CODE < OBD_OCD_VERSION(2, 7, 50, 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
-# warning "remove checksum compatibility support for b1_8"
- 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;
- }
- }
-
- return 0;
+ __u32 cksums, cksumc;
+
+ LASSERT(req->rq_repdata);
+
+ req->rq_repmsg = req->rq_repdata;
+ req->rq_replen = req->rq_repdata_len;
+
+ if (req->rq_early) {
+ cksums = lustre_msg_get_cksum(req->rq_repdata);
+ cksumc = lustre_msg_calc_cksum(req->rq_repmsg);
+
+ if (cksumc != cksums) {
+ CDEBUG(D_SEC,
+ "early reply checksum mismatch: %08x != %08x\n",
+ cksumc, cksums);
+ return -EINVAL;
+ }
+ }
+
+ return 0;
}
static
struct ptlrpc_sec *null_create_sec(struct obd_import *imp,
- struct ptlrpc_svc_ctx *svc_ctx,
- struct sptlrpc_flavor *sf)
+ struct ptlrpc_svc_ctx *svc_ctx,
+ struct sptlrpc_flavor *sf)
{
- 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.
- */
- sptlrpc_policy_put(&null_policy);
- return &null_sec;
+ 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.
+ */
+ sptlrpc_policy_put(&null_policy);
+ return &null_sec;
}
static
void null_destroy_sec(struct ptlrpc_sec *sec)
{
- LASSERT(sec == &null_sec);
+ LASSERT(sec == &null_sec);
}
static
struct ptlrpc_cli_ctx *null_lookup_ctx(struct ptlrpc_sec *sec,
- struct vfs_cred *vcred,
- int create, int remove_dead)
+ struct vfs_cred *vcred,
+ int create, int remove_dead)
{
atomic_inc(&null_cli_ctx.cc_refcount);
return &null_cli_ctx;
}
static
-int null_flush_ctx_cache(struct ptlrpc_sec *sec,
- uid_t uid,
- int grace, int force)
+int null_flush_ctx_cache(struct ptlrpc_sec *sec, uid_t uid, int grace,
+ int force)
{
- return 0;
+ return 0;
}
static
int null_alloc_reqbuf(struct ptlrpc_sec *sec,
- struct ptlrpc_request *req,
- int msgsize)
+ struct ptlrpc_request *req,
+ int msgsize)
{
- if (!req->rq_reqbuf) {
- int alloc_size = size_roundup_power2(msgsize);
-
- LASSERT(!req->rq_pool);
- OBD_ALLOC_LARGE(req->rq_reqbuf, alloc_size);
- if (!req->rq_reqbuf)
- return -ENOMEM;
-
- req->rq_reqbuf_len = alloc_size;
- } else {
- LASSERT(req->rq_pool);
- LASSERT(req->rq_reqbuf_len >= msgsize);
- memset(req->rq_reqbuf, 0, msgsize);
- }
-
- req->rq_reqmsg = req->rq_reqbuf;
- return 0;
+ if (!req->rq_reqbuf) {
+ int alloc_size = size_roundup_power2(msgsize);
+
+ LASSERT(!req->rq_pool);
+ OBD_ALLOC_LARGE(req->rq_reqbuf, alloc_size);
+ if (!req->rq_reqbuf)
+ return -ENOMEM;
+
+ req->rq_reqbuf_len = alloc_size;
+ } else {
+ LASSERT(req->rq_pool);
+ LASSERT(req->rq_reqbuf_len >= msgsize);
+ memset(req->rq_reqbuf, 0, msgsize);
+ }
+
+ req->rq_reqmsg = req->rq_reqbuf;
+ return 0;
}
static
void null_free_reqbuf(struct ptlrpc_sec *sec,
- struct ptlrpc_request *req)
+ struct ptlrpc_request *req)
{
- if (!req->rq_pool) {
- LASSERTF(req->rq_reqmsg == req->rq_reqbuf,
- "req %p: reqmsg %p is not reqbuf %p in null sec\n",
- req, req->rq_reqmsg, req->rq_reqbuf);
- LASSERTF(req->rq_reqbuf_len >= req->rq_reqlen,
- "req %p: reqlen %d should smaller than buflen %d\n",
- req, req->rq_reqlen, req->rq_reqbuf_len);
-
- OBD_FREE_LARGE(req->rq_reqbuf, req->rq_reqbuf_len);
- req->rq_reqbuf = NULL;
- req->rq_reqbuf_len = 0;
- }
+ if (!req->rq_pool) {
+ LASSERTF(req->rq_reqmsg == req->rq_reqbuf,
+ "req %p: reqmsg %p is not reqbuf %p in null sec\n",
+ req, req->rq_reqmsg, req->rq_reqbuf);
+ LASSERTF(req->rq_reqbuf_len >= req->rq_reqlen,
+ "req %p: reqlen %d should smaller than buflen %d\n",
+ req, req->rq_reqlen, req->rq_reqbuf_len);
+
+ OBD_FREE_LARGE(req->rq_reqbuf, req->rq_reqbuf_len);
+ req->rq_reqbuf = NULL;
+ req->rq_reqbuf_len = 0;
+ }
}
static
int null_alloc_repbuf(struct ptlrpc_sec *sec,
- struct ptlrpc_request *req,
- int msgsize)
+ struct ptlrpc_request *req,
+ int msgsize)
{
- /* add space for early replied */
- msgsize += lustre_msg_early_size();
+ /* add space for early replied */
+ msgsize += lustre_msg_early_size();
- msgsize = size_roundup_power2(msgsize);
+ msgsize = size_roundup_power2(msgsize);
- OBD_ALLOC_LARGE(req->rq_repbuf, msgsize);
- if (!req->rq_repbuf)
- return -ENOMEM;
+ OBD_ALLOC_LARGE(req->rq_repbuf, msgsize);
+ if (!req->rq_repbuf)
+ return -ENOMEM;
- req->rq_repbuf_len = msgsize;
- return 0;
+ req->rq_repbuf_len = msgsize;
+ return 0;
}
static
void null_free_repbuf(struct ptlrpc_sec *sec,
- struct ptlrpc_request *req)
+ struct ptlrpc_request *req)
{
- LASSERT(req->rq_repbuf);
+ LASSERT(req->rq_repbuf);
- OBD_FREE_LARGE(req->rq_repbuf, req->rq_repbuf_len);
- req->rq_repbuf = NULL;
- req->rq_repbuf_len = 0;
+ OBD_FREE_LARGE(req->rq_repbuf, req->rq_repbuf_len);
+ req->rq_repbuf = NULL;
+ req->rq_repbuf_len = 0;
}
static
int null_enlarge_reqbuf(struct ptlrpc_sec *sec,
- struct ptlrpc_request *req,
- int segment, int newsize)
+ struct ptlrpc_request *req,
+ int segment, int newsize)
{
- struct lustre_msg *oldbuf = req->rq_reqmsg;
- int oldsize, newmsg_size;
- int rc;
-
- LASSERT(req->rq_reqbuf);
- LASSERT(req->rq_reqbuf == req->rq_reqmsg);
- LASSERT(req->rq_reqbuf_len >= req->rq_reqlen);
- LASSERT(req->rq_reqlen == lustre_packed_msg_size(oldbuf));
-
- /* compute new message size */
- oldsize = req->rq_reqbuf->lm_buflens[segment];
- req->rq_reqbuf->lm_buflens[segment] = newsize;
- newmsg_size = lustre_packed_msg_size(oldbuf);
- req->rq_reqbuf->lm_buflens[segment] = oldsize;
-
- /* request from pool should always have enough buffer */
- LASSERT(!req->rq_pool || req->rq_reqbuf_len >= newmsg_size);
-
- if (req->rq_reqbuf_len < newmsg_size) {
- rc = ptlrpc_enlarge_req_buffer(req, newmsg_size);
- if (rc != 0)
- return rc;
+ struct lustre_msg *newbuf;
+ struct lustre_msg *oldbuf = req->rq_reqmsg;
+ int oldsize, newmsg_size, alloc_size;
+
+ LASSERT(req->rq_reqbuf);
+ LASSERT(req->rq_reqbuf == req->rq_reqmsg);
+ LASSERT(req->rq_reqbuf_len >= req->rq_reqlen);
+ LASSERT(req->rq_reqlen == lustre_packed_msg_size(oldbuf));
+
+ /* compute new message size */
+ oldsize = req->rq_reqbuf->lm_buflens[segment];
+ req->rq_reqbuf->lm_buflens[segment] = newsize;
+ newmsg_size = lustre_packed_msg_size(oldbuf);
+ req->rq_reqbuf->lm_buflens[segment] = oldsize;
+
+ /* request from pool should always have enough buffer */
+ LASSERT(!req->rq_pool || req->rq_reqbuf_len >= newmsg_size);
+
+ if (req->rq_reqbuf_len < newmsg_size) {
+ alloc_size = size_roundup_power2(newmsg_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_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);
- req->rq_reqlen = newmsg_size;
+ _sptlrpc_enlarge_msg_inplace(req->rq_reqmsg, segment, newsize);
+ req->rq_reqlen = newmsg_size;
- return 0;
+ return 0;
}
static struct ptlrpc_svc_ctx null_svc_ctx = {
.sc_refcount = ATOMIC_INIT(1),
- .sc_policy = &null_policy,
+ .sc_policy = &null_policy,
};
static
static
int null_alloc_rs(struct ptlrpc_request *req, int msgsize)
{
- struct ptlrpc_reply_state *rs;
- int rs_size = sizeof(*rs) + msgsize;
+ struct ptlrpc_reply_state *rs;
+ int rs_size = sizeof(*rs) + msgsize;
- LASSERT(msgsize % 8 == 0);
+ LASSERT(msgsize % 8 == 0);
- rs = req->rq_reply_state;
+ 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;
atomic_inc(&req->rq_svc_ctx->sc_refcount);
static
int null_authorize(struct ptlrpc_request *req)
{
- struct ptlrpc_reply_state *rs = req->rq_reply_state;
-
- LASSERT(rs);
-
- 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 {
- __u32 cksum;
-
-#if LUSTRE_VERSION_CODE < OBD_OCD_VERSION(2, 7, 50, 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
-# warning "remove checksum compatibility support for b1_8"
- cksum = lustre_msg_calc_cksum(rs->rs_repbuf);
-#endif
- lustre_msg_set_cksum(rs->rs_repbuf, cksum);
- req->rq_reply_off = 0;
- }
-
- return 0;
+ struct ptlrpc_reply_state *rs = req->rq_reply_state;
+
+ LASSERT(rs);
+
+ 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 {
+ __u32 cksum;
+
+ cksum = lustre_msg_calc_cksum(rs->rs_repbuf);
+ 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,
+ .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,
- .lookup_ctx = null_lookup_ctx,
- .flush_ctx_cache = null_flush_ctx_cache,
- .alloc_reqbuf = null_alloc_reqbuf,
- .alloc_repbuf = null_alloc_repbuf,
- .free_reqbuf = null_free_reqbuf,
- .free_repbuf = null_free_repbuf,
- .enlarge_reqbuf = null_enlarge_reqbuf,
+ .create_sec = null_create_sec,
+ .destroy_sec = null_destroy_sec,
+ .lookup_ctx = null_lookup_ctx,
+ .flush_ctx_cache = null_flush_ctx_cache,
+ .alloc_reqbuf = null_alloc_reqbuf,
+ .alloc_repbuf = null_alloc_repbuf,
+ .free_reqbuf = null_free_reqbuf,
+ .free_repbuf = null_free_repbuf,
+ .enlarge_reqbuf = null_enlarge_reqbuf,
};
static struct ptlrpc_sec_sops null_sec_sops = {
- .accept = null_accept,
- .alloc_rs = null_alloc_rs,
- .authorize = null_authorize,
- .free_rs = null_free_rs,
+ .accept = null_accept,
+ .alloc_rs = null_alloc_rs,
+ .authorize = null_authorize,
+ .free_rs = null_free_rs,
};
static struct ptlrpc_sec_policy null_policy = {
- .sp_owner = THIS_MODULE,
- .sp_name = "sec.null",
- .sp_policy = SPTLRPC_POLICY_NULL,
- .sp_cops = &null_sec_cops,
- .sp_sops = &null_sec_sops,
+ .sp_owner = THIS_MODULE,
+ .sp_name = "sec.null",
+ .sp_policy = SPTLRPC_POLICY_NULL,
+ .sp_cops = &null_sec_cops,
+ .sp_sops = &null_sec_sops,
};
static void null_init_internal(void)
{
- static CFS_HLIST_HEAD(__list);
+ static HLIST_HEAD(__list);
null_sec.ps_policy = &null_policy;
atomic_set(&null_sec.ps_refcount, 1); /* always busy */
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);
+ INIT_LIST_HEAD(&null_sec.ps_gc_list);
null_sec.ps_gc_interval = 0;
null_sec.ps_gc_next = 0;
- cfs_hlist_add_head(&null_cli_ctx.cc_cache, &__list);
+ 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;
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);
+ INIT_LIST_HEAD(&null_cli_ctx.cc_req_list);
+ INIT_LIST_HEAD(&null_cli_ctx.cc_gc_chain);
}
int sptlrpc_null_init(void)
{
- int rc;
+ int rc;
- null_init_internal();
+ null_init_internal();
- rc = sptlrpc_register_policy(&null_policy);
- if (rc)
- CERROR("failed to register %s: %d\n", null_policy.sp_name, rc);
+ rc = sptlrpc_register_policy(&null_policy);
+ if (rc)
+ CERROR("failed to register %s: %d\n", null_policy.sp_name, rc);
- return rc;
+ return rc;
}
void sptlrpc_null_fini(void)
{
- int rc;
+ int rc;
- rc = sptlrpc_unregister_policy(&null_policy);
- if (rc)
- CERROR("failed to unregister %s: %d\n", null_policy.sp_name,rc);
+ rc = sptlrpc_unregister_policy(&null_policy);
+ if (rc)
+ CERROR("failed to unregister %s: %d\n", null_policy.sp_name,
+ rc);
}
git://git.whamcloud.com / fs / lustre-release.git / blobdiff