Whamcloud - gitweb
land 0.5.20.3 b_devel onto HEAD (b_devel will remain)
[fs/lustre-release.git] / lustre / lib / mds_updates.c
index 0285002..aa666ad 100644 (file)
@@ -1,13 +1,24 @@
 /* -*- mode: c; c-basic-offset: 8; indent-tabs-mode: nil; -*-
  * vim:expandtab:shiftwidth=8:tabstop=8:
  *
- * Lustre Light Update Records
+ * Lustre Lite Update Records
  *
- * This code is issued under the GNU General Public License.
- * See the file COPYING in this distribution
+ *  Copyright (c) 2002, 2003 Cluster File Systems, Inc.
  *
- * Copryright (C) 2002 Cluster File Systems, Inc.
+ *   This file is part of Lustre, http://www.lustre.org.
  *
+ *   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.
+ *
+ *   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.
+ *
+ *   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.
  */
 
 #include <linux/config.h>
 #include <linux/string.h>
 #include <linux/stat.h>
 #include <linux/errno.h>
-#include <linux/locks.h>
+#include <linux/version.h>
+#if (LINUX_VERSION_CODE < KERNEL_VERSION(2,5,0))
+#include <linux/locks.h>   // for wait_on_buffer
+#else
+#include <linux/buffer_head.h>   // for wait_on_buffer
+#endif
 #include <linux/unistd.h>
 
 #include <asm/system.h>
 #include <linux/lustre_mds.h>
 #include <linux/lustre_lite.h>
 
+void mds_pack_inode2fid(struct ll_fid *fid, struct inode *inode)
+{
+        fid->id = HTON__u64(inode->i_ino);
+        fid->generation = HTON__u32(inode->i_generation);
+        fid->f_type = HTON__u32(S_IFMT & inode->i_mode);
+}
+
+void mds_pack_inode2body(struct mds_body *b, struct inode *inode)
+{
+        b->valid = OBD_MD_FLID | OBD_MD_FLATIME | OBD_MD_FLMTIME |
+                OBD_MD_FLCTIME | OBD_MD_FLSIZE | OBD_MD_FLBLOCKS |
+                OBD_MD_FLUID | OBD_MD_FLGID | OBD_MD_FLTYPE | OBD_MD_FLMODE |
+                OBD_MD_FLNLINK | OBD_MD_FLGENER;
+
+        /* The MDS file size isn't authoritative for regular files, so don't
+         * even pretend. */
+        if (S_ISREG(inode->i_mode))
+                b->valid &= ~(OBD_MD_FLSIZE | OBD_MD_FLBLOCKS);
+
+        b->ino = HTON__u32(inode->i_ino);
+#if (LINUX_VERSION_CODE < KERNEL_VERSION(2,5,0))
+        b->atime = HTON__u32(inode->i_atime);
+        b->mtime = HTON__u32(inode->i_mtime);
+        b->ctime = HTON__u32(inode->i_ctime);
+#else
+        b->atime = HTON__u32(inode->i_atime.tv_sec);
+        b->mtime = HTON__u32(inode->i_mtime.tv_sec);
+        b->ctime = HTON__u32(inode->i_ctime.tv_sec);
+#endif
+        b->mode = HTON__u32(inode->i_mode);
+        b->size = HTON__u64(inode->i_size);
+        b->blocks = HTON__u64(inode->i_blocks);
+        b->uid = HTON__u32(inode->i_uid);
+        b->gid = HTON__u32(inode->i_gid);
+        b->flags = HTON__u32(inode->i_flags);
+        b->rdev = HTON__u32(b->rdev);
+        b->nlink = HTON__u32(inode->i_nlink);
+        b->generation = HTON__u32(inode->i_generation);
+        b->suppgid = HTON__u32(-1);
+}
+
+
 void mds_pack_fid(struct ll_fid *fid)
 {
         fid->id = HTON__u64(fid->id);
@@ -48,10 +106,14 @@ static void mds_pack_body(struct mds_body *b)
         if (b == NULL)
                 LBUG();
 
+        b->fsuid = HTON__u32(current->fsuid);
+        b->fsgid = HTON__u32(current->fsgid);
+        b->capability = HTON__u32(current->cap_effective);
+
         mds_pack_fid(&b->fid1);
         mds_pack_fid(&b->fid2);
-        b->objid = HTON__u64(b->objid);
         b->size = HTON__u64(b->size);
+        b->ino = HTON__u32(b->ino);
         b->valid = HTON__u32(b->valid);
         b->mode = HTON__u32(b->mode);
         b->uid = HTON__u32(b->uid);
@@ -60,20 +122,61 @@ static void mds_pack_body(struct mds_body *b)
         b->ctime = HTON__u32(b->ctime);
         b->atime = HTON__u32(b->atime);
         b->flags = HTON__u32(b->flags);
-        b->major = HTON__u32(b->major);
-        b->minor = HTON__u32(b->minor);
-        b->ino = HTON__u32(b->ino);
+        b->rdev = HTON__u32(b->rdev);
         b->nlink = HTON__u32(b->nlink);
         b->generation = HTON__u32(b->generation);
+        b->suppgid = HTON__u32(b->suppgid);
+}
+
+void mds_getattr_pack(struct ptlrpc_request *req, int valid, int offset,
+                      int flags,
+                      struct inode *inode, const char *name, int namelen)
+{
+        struct mds_body *b;
+        b = lustre_msg_buf(req->rq_reqmsg, offset);
+
+        b->fsuid = HTON__u32(current->fsuid);
+        b->fsgid = HTON__u32(current->fsgid);
+        b->capability = HTON__u32(current->cap_effective);
+        b->valid = HTON__u32(valid);
+        b->flags = HTON__u32(flags);
+        if (in_group_p(inode->i_gid))
+                b->suppgid = HTON__u32(inode->i_gid);
+        else
+                b->suppgid = HTON__u32(-1);
+
+        ll_inode2fid(&b->fid1, inode);
+        if (name) {
+                char *tmp;
+                tmp = lustre_msg_buf(req->rq_reqmsg, offset + 1);
+                LOGL0(name, namelen, tmp);
+        }
 }
 
-void mds_pack_req_body(struct ptlrpc_request *req) 
+void mds_readdir_pack(struct ptlrpc_request *req, __u64 offset,
+                      obd_id ino, int type, __u64 xid)
+{
+        struct mds_body *b;
+
+        b = lustre_msg_buf(req->rq_reqmsg, 0);
+        b->fsuid = HTON__u32(current->fsuid);
+        b->fsgid = HTON__u32(current->fsgid);
+        b->capability = HTON__u32(current->cap_effective);
+        b->fid1.id = HTON__u64(ino);
+        b->fid1.f_type = HTON__u32(type);
+        b->size = HTON__u64(offset);
+        b->suppgid = HTON__u32(-1);
+        b->blocks = HTON__u64(xid);
+}
+
+
+void mds_pack_req_body(struct ptlrpc_request *req)
 {
         struct mds_body *b = lustre_msg_buf(req->rq_reqmsg, 0);
         mds_pack_body(b);
 }
 
-void mds_pack_rep_body(struct ptlrpc_request *req) 
+void mds_pack_rep_body(struct ptlrpc_request *req)
 {
         struct mds_body *b = lustre_msg_buf(req->rq_repmsg, 0);
         mds_pack_body(b);
@@ -81,58 +184,201 @@ void mds_pack_rep_body(struct ptlrpc_request *req)
 
 
 /* packing of MDS records */
-void mds_create_pack(struct mds_rec_create *rec, struct inode *inode,
-                     __u32 mode, __u64 id, __u32 uid, __u32 gid, __u64 time)
+void mds_create_pack(struct ptlrpc_request *req, int offset, struct inode *dir,
+                     __u32 mode, __u64 rdev, __u32 uid, __u32 gid, __u64 time,
+                     const char *name, int namelen,
+                     const void *data, int datalen)
 {
-        /* XXX do something about time, uid, gid */
+        struct mds_rec_create *rec;
+        char *tmp;
+        rec = lustre_msg_buf(req->rq_reqmsg, offset);
+
         rec->cr_opcode = HTON__u32(REINT_CREATE);
-        ll_inode2fid(&rec->cr_fid, inode);
+        rec->cr_fsuid = HTON__u32(current->fsuid);
+        rec->cr_fsgid = HTON__u32(current->fsgid);
+        rec->cr_cap = HTON__u32(current->cap_effective);
+        ll_inode2fid(&rec->cr_fid, dir);
+        memset(&rec->cr_replayfid, 0, sizeof(rec->cr_replayfid));
+        rec->cr_mode = HTON__u32(mode);
+        rec->cr_rdev = HTON__u64(rdev);
+        rec->cr_uid = HTON__u32(uid);
+        rec->cr_gid = HTON__u32(gid);
+        rec->cr_time = HTON__u64(time);
+        if (in_group_p(dir->i_gid))
+                rec->cr_suppgid = HTON__u32(dir->i_gid);
+        else
+                rec->cr_suppgid = HTON__u32(-1);
+
+        tmp = lustre_msg_buf(req->rq_reqmsg, offset + 1);
+        LOGL0(name, namelen, tmp);
+
+        if (data) {
+                tmp = lustre_msg_buf(req->rq_reqmsg, offset + 2);
+                LOGL0(data, datalen, tmp);
+        }
+}
+/* packing of MDS records */
+void mds_open_pack(struct ptlrpc_request *req, int offset, struct inode *dir,
+                     __u32 mode, __u64 rdev, __u32 uid, __u32 gid, __u64 time,
+                     __u32 flags,
+                     const char *name, int namelen,
+                     const void *data, int datalen)
+{
+        struct mds_rec_create *rec;
+        char *tmp;
+        rec = lustre_msg_buf(req->rq_reqmsg, offset);
+
+        /* XXX do something about time, uid, gid */
+        rec->cr_opcode = HTON__u32(REINT_OPEN);
+        rec->cr_fsuid = HTON__u32(current->fsuid);
+        rec->cr_fsgid = HTON__u32(current->fsgid);
+        rec->cr_cap = HTON__u32(current->cap_effective);
+        ll_inode2fid(&rec->cr_fid, dir);
+        memset(&rec->cr_replayfid, 0, sizeof(rec->cr_replayfid));
         rec->cr_mode = HTON__u32(mode);
-        rec->cr_id = HTON__u64(id);
+        rec->cr_flags = HTON__u32(flags);
+        rec->cr_rdev = HTON__u64(rdev);
         rec->cr_uid = HTON__u32(uid);
         rec->cr_gid = HTON__u32(gid);
         rec->cr_time = HTON__u64(time);
+        if (in_group_p(dir->i_gid))
+                rec->cr_suppgid = HTON__u32(dir->i_gid);
+        else
+                rec->cr_suppgid = HTON__u32(-1);
+
+        tmp = lustre_msg_buf(req->rq_reqmsg, offset + 1);
+        LOGL0(name, namelen, tmp);
+
+        if (data) {
+                tmp = lustre_msg_buf(req->rq_reqmsg, offset + 2);
+                LOGL0(data, datalen, tmp);
+        }
 }
 
-void mds_setattr_pack(struct mds_rec_setattr *rec, struct inode *inode,
-                      struct iattr *iattr)
+void mds_setattr_pack(struct ptlrpc_request *req,
+                      struct inode *inode, struct iattr *iattr,
+                      void *ea, int ealen)
 {
+        struct mds_rec_setattr *rec = lustre_msg_buf(req->rq_reqmsg, 0);
+
         rec->sa_opcode = HTON__u32(REINT_SETATTR);
+        rec->sa_fsuid = HTON__u32(current->fsuid);
+        rec->sa_fsgid = HTON__u32(current->fsgid);
+        rec->sa_cap = HTON__u32(current->cap_effective);
         ll_inode2fid(&rec->sa_fid, inode);
-        rec->sa_valid = HTON__u32(iattr->ia_valid);
-        rec->sa_mode = HTON__u32(iattr->ia_mode);
-        rec->sa_uid = HTON__u32(iattr->ia_uid);
-        rec->sa_gid = HTON__u32(iattr->ia_gid);
-        rec->sa_size = HTON__u64(iattr->ia_size);
-        rec->sa_atime = HTON__u64(iattr->ia_atime);
-        rec->sa_mtime = HTON__u64(iattr->ia_mtime);
-        rec->sa_ctime = HTON__u64(iattr->ia_ctime);
-        rec->sa_attr_flags = HTON__u32(iattr->ia_attr_flags);
+
+        if (iattr) {
+                rec->sa_valid = HTON__u32(iattr->ia_valid);
+                rec->sa_mode = HTON__u32(iattr->ia_mode);
+                rec->sa_uid = HTON__u32(iattr->ia_uid);
+                rec->sa_gid = HTON__u32(iattr->ia_gid);
+                rec->sa_size = HTON__u64(iattr->ia_size);
+#if (LINUX_VERSION_CODE < KERNEL_VERSION(2,5,0))
+                rec->sa_atime = HTON__u64(iattr->ia_atime);
+                rec->sa_mtime = HTON__u64(iattr->ia_mtime);
+                rec->sa_ctime = HTON__u64(iattr->ia_ctime);
+#else
+                rec->sa_atime = HTON__u64(iattr->ia_atime.tv_sec);
+                rec->sa_mtime = HTON__u64(iattr->ia_mtime.tv_sec);
+                rec->sa_ctime = HTON__u64(iattr->ia_ctime.tv_sec);
+#endif
+                rec->sa_attr_flags = HTON__u32(iattr->ia_attr_flags);
+
+                if ((iattr->ia_valid & ATTR_GID) && in_group_p(iattr->ia_gid))
+                        rec->sa_suppgid = HTON__u32(iattr->ia_gid);
+                else if ((iattr->ia_valid & ATTR_MODE) &&
+                         in_group_p(inode->i_gid))
+                        rec->sa_suppgid = HTON__u32(inode->i_gid);
+                else
+                        rec->sa_suppgid = HTON__u32(-1);
+        }
+
+        if (ealen)
+                memcpy(lustre_msg_buf(req->rq_reqmsg, 1), ea, ealen);
 }
 
-void mds_unlink_pack(struct mds_rec_unlink *rec, struct inode *inode,
-                     struct inode *child)
+void mds_unlink_pack(struct ptlrpc_request *req, int offset,
+                     struct inode *inode, struct inode *child, __u32 mode,
+                     const char *name, int namelen)
 {
+        struct mds_rec_unlink *rec;
+        char *tmp;
+
+        rec = lustre_msg_buf(req->rq_reqmsg, offset);
+
         rec->ul_opcode = HTON__u32(REINT_UNLINK);
+        rec->ul_fsuid = HTON__u32(current->fsuid);
+        rec->ul_fsgid = HTON__u32(current->fsgid);
+        rec->ul_cap = HTON__u32(current->cap_effective);
+        rec->ul_mode = HTON__u32(mode);
+        if (in_group_p(inode->i_gid))
+                rec->ul_suppgid = HTON__u32(inode->i_gid);
+        else
+                rec->ul_suppgid = HTON__u32(-1);
         ll_inode2fid(&rec->ul_fid1, inode);
-        ll_inode2fid(&rec->ul_fid2, child);
+        if (child)
+                ll_inode2fid(&rec->ul_fid2, child);
+
+        tmp = lustre_msg_buf(req->rq_reqmsg, offset + 1);
+        LOGL0(name, namelen, tmp);
 }
 
-void mds_link_pack(struct mds_rec_link *rec,
-                   struct inode *inode, struct inode *dir)
+void mds_link_pack(struct ptlrpc_request *req, int offset,
+                   struct inode *inode, struct inode *dir,
+                   const char *name, int namelen)
 {
+        struct mds_rec_link *rec;
+        char *tmp;
+
+        rec = lustre_msg_buf(req->rq_reqmsg, offset);
+
         rec->lk_opcode = HTON__u32(REINT_LINK);
+        rec->lk_fsuid = HTON__u32(current->fsuid);
+        rec->lk_fsgid = HTON__u32(current->fsgid);
+        rec->lk_cap = HTON__u32(current->cap_effective);
+        if (in_group_p(dir->i_gid))
+                rec->lk_suppgid = HTON__u32(dir->i_gid);
+        else
+                rec->lk_suppgid = HTON__u32(-1);
         ll_inode2fid(&rec->lk_fid1, inode);
         ll_inode2fid(&rec->lk_fid2, dir);
+
+        tmp = lustre_msg_buf(req->rq_reqmsg, offset + 1);
+        LOGL0(name, namelen, tmp);
 }
 
-void mds_rename_pack(struct mds_rec_rename *rec, struct inode *srcdir,
-                     struct inode *tgtdir)
+void mds_rename_pack(struct ptlrpc_request *req, int offset,
+                     struct inode *srcdir, struct inode *tgtdir,
+                     const char *old, int oldlen, const char *new, int newlen)
 {
+        struct mds_rec_rename *rec;
+        char *tmp;
+
+        rec = lustre_msg_buf(req->rq_reqmsg, offset);
+
         /* XXX do something about time, uid, gid */
         rec->rn_opcode = HTON__u32(REINT_RENAME);
+        rec->rn_fsuid = HTON__u32(current->fsuid);
+        rec->rn_fsgid = HTON__u32(current->fsgid);
+        rec->rn_cap = HTON__u32(current->cap_effective);
+        if (in_group_p(srcdir->i_gid))
+                rec->rn_suppgid1 = HTON__u32(srcdir->i_gid);
+        else
+                rec->rn_suppgid1 = HTON__u32(-1);
+        if (in_group_p(tgtdir->i_gid))
+                rec->rn_suppgid2 = HTON__u32(tgtdir->i_gid);
+        else
+                rec->rn_suppgid2 = HTON__u32(-1);
         ll_inode2fid(&rec->rn_fid1, srcdir);
         ll_inode2fid(&rec->rn_fid2, tgtdir);
+
+        tmp = lustre_msg_buf(req->rq_reqmsg, offset + 1);
+        LOGL0(old, oldlen, tmp);
+
+        if (new) {
+                tmp = lustre_msg_buf(req->rq_reqmsg, offset + 2);
+                LOGL0(new, newlen, tmp);
+        }
 }
 
 /* unpacking */
@@ -143,16 +389,20 @@ void mds_unpack_fid(struct ll_fid *fid)
         fid->f_type = NTOH__u32(fid->f_type);
 }
 
-static void mds_unpack_body(struct mds_body *b)
+void mds_unpack_body(struct mds_body *b)
 {
         if (b == NULL)
                 LBUG();
 
         mds_unpack_fid(&b->fid1);
         mds_unpack_fid(&b->fid2);
-        b->objid = NTOH__u64(b->objid);
         b->size = NTOH__u64(b->size);
+        b->blocks = NTOH__u64(b->blocks);
         b->valid = NTOH__u32(b->valid);
+        b->fsuid = NTOH__u32(b->fsuid);
+        b->fsgid = NTOH__u32(b->fsgid);
+        b->capability = NTOH__u32(b->capability);
+        b->ino = NTOH__u32(b->ino);
         b->mode = NTOH__u32(b->mode);
         b->uid = NTOH__u32(b->uid);
         b->gid = NTOH__u32(b->gid);
@@ -160,133 +410,166 @@ static void mds_unpack_body(struct mds_body *b)
         b->ctime = NTOH__u32(b->ctime);
         b->atime = NTOH__u32(b->atime);
         b->flags = NTOH__u32(b->flags);
-        b->major = NTOH__u32(b->major);
-        b->minor = NTOH__u32(b->minor);
-        b->ino = NTOH__u32(b->ino);
+        b->rdev = NTOH__u32(b->rdev);
         b->nlink = NTOH__u32(b->nlink);
         b->generation = NTOH__u32(b->generation);
+        b->suppgid = NTOH__u32(b->suppgid);
 }
 
-
-void mds_unpack_req_body(struct ptlrpc_request *req) 
-{
-        struct mds_body *b = lustre_msg_buf(req->rq_reqmsg, 0);
-        mds_unpack_body(b);
-}
-
-void mds_unpack_rep_body(struct ptlrpc_request *req) 
-{
-        struct mds_body *b = lustre_msg_buf(req->rq_repmsg, 0);
-        mds_unpack_body(b);
-}
-
-static int mds_setattr_unpack(struct ptlrpc_request *req,
+static int mds_setattr_unpack(struct ptlrpc_request *req, int offset,
                               struct mds_update_record *r)
 {
         struct iattr *attr = &r->ur_iattr;
-        struct mds_rec_setattr *rec = lustre_msg_buf(req->rq_reqmsg, 0);
+        struct mds_rec_setattr *rec = lustre_msg_buf(req->rq_reqmsg, offset);
         ENTRY;
 
-        if (req->rq_reqmsg->bufcount != 1 ||
-            req->rq_reqmsg->buflens[0] != sizeof(*rec))
+        if (req->rq_reqmsg->bufcount < offset + 1 ||
+            req->rq_reqmsg->buflens[offset] != sizeof(*rec))
                 RETURN(-EFAULT);
 
+        r->ur_fsuid = NTOH__u32(rec->sa_fsuid);
+        r->ur_fsgid = NTOH__u32(rec->sa_fsgid);
+        r->ur_cap = NTOH__u32(rec->sa_cap);
+        r->ur_suppgid1 = NTOH__u32(rec->sa_suppgid);
+        r->ur_suppgid2 = NTOH__u32(-1);
         r->ur_fid1 = &rec->sa_fid;
         attr->ia_valid = NTOH__u32(rec->sa_valid);
         attr->ia_mode = NTOH__u32(rec->sa_mode);
         attr->ia_uid = NTOH__u32(rec->sa_uid);
         attr->ia_gid = NTOH__u32(rec->sa_gid);
         attr->ia_size = NTOH__u64(rec->sa_size);
+#if (LINUX_VERSION_CODE < KERNEL_VERSION(2,5,0))
         attr->ia_atime = NTOH__u64(rec->sa_atime);
         attr->ia_mtime = NTOH__u64(rec->sa_mtime);
         attr->ia_ctime = NTOH__u64(rec->sa_ctime);
+#else
+        attr->ia_atime.tv_sec = NTOH__u64(rec->sa_atime);
+        attr->ia_mtime.tv_sec = NTOH__u64(rec->sa_mtime);
+        attr->ia_ctime.tv_sec = NTOH__u64(rec->sa_ctime);
+#endif
         attr->ia_attr_flags = NTOH__u32(rec->sa_attr_flags);
+
+        if (req->rq_reqmsg->bufcount == offset + 2) {
+                r->ur_namelen = req->rq_reqmsg->buflens[offset + 1];
+                r->ur_name = lustre_msg_buf(req->rq_reqmsg, offset + 1);
+        } else {
+                r->ur_namelen = 0;
+        }
+
         RETURN(0);
 }
 
-static int mds_create_unpack(struct ptlrpc_request *req,
+static int mds_create_unpack(struct ptlrpc_request *req, int offset,
                              struct mds_update_record *r)
 {
-        struct mds_rec_create *rec = lustre_msg_buf(req->rq_reqmsg, 0);
+        struct mds_rec_create *rec = lustre_msg_buf(req->rq_reqmsg, offset);
         ENTRY;
 
-        if (req->rq_reqmsg->bufcount != 3 ||
-            req->rq_reqmsg->buflens[0] != sizeof(*rec))
+        if (req->rq_reqmsg->bufcount < offset + 2 ||
+            req->rq_reqmsg->buflens[offset] != sizeof(*rec))
                 RETURN(-EFAULT);
 
+        r->ur_fsuid = NTOH__u32(rec->cr_fsuid);
+        r->ur_fsgid = NTOH__u32(rec->cr_fsgid);
+        r->ur_cap = NTOH__u32(rec->cr_cap);
         r->ur_fid1 = &rec->cr_fid;
+        r->ur_fid2 = &rec->cr_replayfid;
         r->ur_mode = NTOH__u32(rec->cr_mode);
-        r->ur_id = NTOH__u64(rec->cr_id);
+        r->ur_rdev = NTOH__u64(rec->cr_rdev);
         r->ur_uid = NTOH__u32(rec->cr_uid);
         r->ur_gid = NTOH__u32(rec->cr_gid);
         r->ur_time = NTOH__u64(rec->cr_time);
-
-        r->ur_name = lustre_msg_buf(req->rq_reqmsg, 1);
-        r->ur_namelen = req->rq_reqmsg->buflens[1];
-
-        r->ur_tgt = lustre_msg_buf(req->rq_reqmsg, 2);
-        r->ur_tgtlen = req->rq_reqmsg->buflens[2];
+        r->ur_flags = NTOH__u32(rec->cr_flags);
+        r->ur_suppgid1 = NTOH__u32(rec->cr_suppgid);
+        r->ur_suppgid2 = NTOH__u32(-1);
+
+        r->ur_name = lustre_msg_buf(req->rq_reqmsg, offset + 1);
+        r->ur_namelen = req->rq_reqmsg->buflens[offset + 1];
+
+        if (req->rq_reqmsg->bufcount == offset + 3) {
+                r->ur_tgt = lustre_msg_buf(req->rq_reqmsg, offset + 2);
+                r->ur_tgtlen = req->rq_reqmsg->buflens[offset + 2];
+        } else {
+                r->ur_tgt = NULL;
+                r->ur_tgtlen = 0;
+        }
         RETURN(0);
 }
 
-static int mds_link_unpack(struct ptlrpc_request *req,
+static int mds_link_unpack(struct ptlrpc_request *req, int offset,
                            struct mds_update_record *r)
 {
-        struct mds_rec_link *rec = lustre_msg_buf(req->rq_reqmsg, 0);
+        struct mds_rec_link *rec = lustre_msg_buf(req->rq_reqmsg, offset);
         ENTRY;
 
-        if (req->rq_reqmsg->bufcount != 2 ||
-            req->rq_reqmsg->buflens[0] != sizeof(*rec))
+        if (req->rq_reqmsg->bufcount != offset + 2 ||
+            req->rq_reqmsg->buflens[offset] != sizeof(*rec))
                 RETURN(-EFAULT);
 
+        r->ur_fsuid = NTOH__u32(rec->lk_fsuid);
+        r->ur_fsgid = NTOH__u32(rec->lk_fsgid);
+        r->ur_cap = NTOH__u32(rec->lk_cap);
+        r->ur_suppgid1 = NTOH__u32(rec->lk_suppgid);
+        r->ur_suppgid2 = NTOH__u32(-1);
         r->ur_fid1 = &rec->lk_fid1;
         r->ur_fid2 = &rec->lk_fid2;
 
-        r->ur_name = lustre_msg_buf(req->rq_reqmsg, 1);
-        r->ur_namelen = req->rq_reqmsg->buflens[1];
+        r->ur_name = lustre_msg_buf(req->rq_reqmsg, offset + 1);
+        r->ur_namelen = req->rq_reqmsg->buflens[offset + 1];
         RETURN(0);
 }
 
-static int mds_unlink_unpack(struct ptlrpc_request *req,
+static int mds_unlink_unpack(struct ptlrpc_request *req, int offset,
                              struct mds_update_record *r)
 {
-        struct mds_rec_unlink *rec = lustre_msg_buf(req->rq_reqmsg, 0);
+        struct mds_rec_unlink *rec = lustre_msg_buf(req->rq_reqmsg, offset);
         ENTRY;
 
-        if (req->rq_reqmsg->bufcount != 2 ||
-            req->rq_reqmsg->buflens[0] != sizeof(*rec))
+        if (req->rq_reqmsg->bufcount != offset + 2 ||
+            req->rq_reqmsg->buflens[offset] != sizeof(*rec))
                 RETURN(-EFAULT);
 
+        r->ur_fsuid = NTOH__u32(rec->ul_fsuid);
+        r->ur_fsgid = NTOH__u32(rec->ul_fsgid);
+        r->ur_cap = NTOH__u32(rec->ul_cap);
+        r->ur_mode = NTOH__u32(rec->ul_mode);
+        r->ur_suppgid1 = NTOH__u32(rec->ul_suppgid);
+        r->ur_suppgid2 = NTOH__u32(-1);
         r->ur_fid1 = &rec->ul_fid1;
         r->ur_fid2 = &rec->ul_fid2;
 
-        r->ur_name = lustre_msg_buf(req->rq_reqmsg, 1);
-        r->ur_namelen = req->rq_reqmsg->buflens[1];
+        r->ur_name = lustre_msg_buf(req->rq_reqmsg, offset + 1);
+        r->ur_namelen = req->rq_reqmsg->buflens[offset + 1];
         RETURN(0);
 }
 
-static int mds_rename_unpack(struct ptlrpc_request *req,
+static int mds_rename_unpack(struct ptlrpc_request *req, int offset,
                              struct mds_update_record *r)
 {
-        struct mds_rec_rename *rec = lustre_msg_buf(req->rq_reqmsg, 0);
+        struct mds_rec_rename *rec = lustre_msg_buf(req->rq_reqmsg, offset);
         ENTRY;
 
-        if (req->rq_reqmsg->bufcount != 3 ||
-            req->rq_reqmsg->buflens[0] != sizeof(*rec))
+        if (req->rq_reqmsg->bufcount != offset + 3 ||
+            req->rq_reqmsg->buflens[offset] != sizeof(*rec))
                 RETURN(-EFAULT);
 
+        r->ur_fsuid = NTOH__u32(rec->rn_fsuid);
+        r->ur_fsgid = NTOH__u32(rec->rn_fsgid);
+        r->ur_cap = NTOH__u32(rec->rn_cap);
+        r->ur_suppgid1 = NTOH__u32(rec->rn_suppgid1);
+        r->ur_suppgid2 = NTOH__u32(rec->rn_suppgid2);
         r->ur_fid1 = &rec->rn_fid1;
         r->ur_fid2 = &rec->rn_fid2;
 
-        r->ur_name = lustre_msg_buf(req->rq_reqmsg, 1);
-        r->ur_namelen = req->rq_reqmsg->buflens[1];
+        r->ur_name = lustre_msg_buf(req->rq_reqmsg, offset + 1);
+        r->ur_namelen = req->rq_reqmsg->buflens[offset + 1];
 
-        r->ur_tgt = lustre_msg_buf(req->rq_reqmsg, 2);
-        r->ur_tgtlen = req->rq_reqmsg->buflens[2];
+        r->ur_tgt = lustre_msg_buf(req->rq_reqmsg, offset + 2);
+        r->ur_tgtlen = req->rq_reqmsg->buflens[offset + 2];
         RETURN(0);
 }
 
-typedef int (*update_unpacker)(struct ptlrpc_request *req,
+typedef int (*update_unpacker)(struct ptlrpc_request *req, int offset,
                                struct mds_update_record *r);
 
 static update_unpacker mds_unpackers[REINT_MAX + 1] = {
@@ -295,22 +578,27 @@ static update_unpacker mds_unpackers[REINT_MAX + 1] = {
         [REINT_LINK] mds_link_unpack,
         [REINT_UNLINK] mds_unlink_unpack,
         [REINT_RENAME] mds_rename_unpack,
+        [REINT_OPEN] mds_create_unpack,
 };
 
-int mds_update_unpack(struct ptlrpc_request *req, struct mds_update_record *rec)
+int mds_update_unpack(struct ptlrpc_request *req, int offset,
+                      struct mds_update_record *rec)
 {
-        struct mds_update_record_hdr *hdr = lustre_msg_buf(req->rq_reqmsg, 0);
-        int rc;
+        __u32 *opcode = lustre_msg_buf(req->rq_reqmsg, offset);
+        int rc, realop;
         ENTRY;
 
-        if (!hdr || req->rq_reqmsg->buflens[0] < sizeof(__u32))
+        if (!opcode || req->rq_reqmsg->buflens[offset] < sizeof(*opcode))
                 RETURN(-EFAULT);
 
-        rec->ur_opcode = NTOH__u32(hdr->ur_opcode);
+        realop = rec->ur_opcode = NTOH__u32(*opcode);
+        realop &= REINT_OPCODE_MASK;
 
-        if (rec->ur_opcode < 0 || rec->ur_opcode > REINT_MAX)
+        if (realop < 0 || realop > REINT_MAX) {
+                LBUG();
                 RETURN(-EFAULT);
+        }
 
-        rc = mds_unpackers[rec->ur_opcode](req, rec);
+        rc = mds_unpackers[realop](req, offset, rec);
         RETURN(rc);
 }