* vim:expandtab:shiftwidth=8:tabstop=8:
*
* Copyright (C) 2004-2006 Cluster File Systems, Inc.
+ * Author: Eric Mei <ericm@clusterfs.com>
*
* This file is part of Lustre, http://www.lustre.org.
*
#endif
#include <obd_support.h>
+#include <obd_cksum.h>
#include <obd_class.h>
#include <lustre_net.h>
#include <lustre_sec.h>
static struct ptlrpc_cli_ctx null_cli_ctx;
static struct ptlrpc_svc_ctx null_svc_ctx;
-static
-int null_ctx_refresh(struct ptlrpc_cli_ctx *ctx)
+/*
+ * null sec temporarily use the third byte 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;
+}
+
+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;
+ }
+}
+
+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);
+ }
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);
+
+ /* real reply rq_repdata point inside of rq_reqbuf; early reply
+ * rq_repdata point to a separate allocated space */
+ if ((char *) req->rq_repdata < req->rq_repbuf ||
+ (char *) req->rq_repdata >= req->rq_repbuf + req->rq_repbuf_len) {
+ cksums = req->rq_repdata->lm_cksum;
+ req->rq_repdata->lm_cksum = 0;
+
+ if (req->rq_repdata->lm_magic == LUSTRE_MSG_MAGIC_V2_SWABBED)
+ __swab32s(&cksums);
+
+ cksumc = crc32_le(!(__u32) 0, (char *) req->rq_repdata,
+ req->rq_repdata_len);
+ if (cksumc != cksums) {
+ CWARN("early reply checksum mismatch: %08x != %08x\n",
+ cksumc, cksums);
+ return -EINVAL;
+ }
+ }
+
+ 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,
-};
-
-static struct ptlrpc_svc_ctx null_svc_ctx = {
- .sc_refcount = ATOMIC_INIT(1),
- .sc_policy = &null_policy,
-};
-
static
-struct ptlrpc_sec* null_create_sec(struct obd_import *imp,
- struct ptlrpc_svc_ctx *ctx,
- __u32 flavor,
- unsigned long flags)
+struct ptlrpc_sec *null_create_sec(struct obd_import *imp,
+ struct ptlrpc_svc_ctx *svc_ctx,
+ struct sptlrpc_flavor *sf)
{
- LASSERT(SEC_FLAVOR_POLICY(flavor) == SPTLRPC_POLICY_NULL);
+ 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;
+ }
+
+ /* 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;
}
{
if (!req->rq_pool) {
LASSERTF(req->rq_reqmsg == req->rq_reqbuf,
- "reqmsg %p is not reqbuf %p in null sec\n",
- 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,
- "reqlen %d should smaller than buflen %d\n",
- req->rq_reqlen, req->rq_reqbuf_len);
+ "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;
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);
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;
+
+ req->rq_repmsg = NULL;
}
static
int segment, int newsize)
{
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_msg_size(req->rq_reqmsg->lm_magic,
- req->rq_reqmsg->lm_bufcount,
- req->rq_reqmsg->lm_buflens));
+ 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_msg_size(req->rq_reqbuf->lm_magic,
- req->rq_reqbuf->lm_bufcount,
- req->rq_reqbuf->lm_buflens);
+ newmsg_size = lustre_packed_msg_size(oldbuf);
req->rq_reqbuf->lm_buflens[segment] = oldsize;
/* request from pool should always have enough buffer */
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(SEC_FLAVOR_POLICY(req->rq_sec_flavor) == SPTLRPC_POLICY_NULL);
+ LASSERT(RPC_FLVR_POLICY(req->rq_flvr.sf_rpc) == SPTLRPC_POLICY_NULL);
- if (SEC_FLAVOR_RPC(req->rq_sec_flavor) != SPTLRPC_FLVR_NULL) {
- CERROR("Invalid flavor 0x%x\n", req->rq_sec_flavor);
+ 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_reqmsg = req->rq_reqbuf;
req->rq_reqlen = req->rq_reqdata_len;
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)) {
+ req->rq_reply_off = lustre_msg_early_size();
+ } else {
+ rs->rs_repbuf->lm_cksum =
+ crc32_le(!(__u32) 0, (char *) rs->rs_repbuf,
+ rs->rs_repdata_len);
+ 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_flavor = SPTLRPC_FLVR_NULL;
- null_sec.ps_flags = 0;
+ 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_busy, 1); /* for "null_cli_ctx" */
- INIT_LIST_HEAD(&null_sec.ps_gc_list);
+ 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_hash, &__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);
- INIT_LIST_HEAD(&null_cli_ctx.cc_req_list);
+ 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