[nfs-utils/f13/user/steved/pnfs-f13: 2/2] Updated to latest nfs-utils release: nfs-utils-1-2-3-rc5

Steve Dickson steved at fedoraproject.org
Fri Sep 10 12:05:47 UTC 2010


commit 80a9ffc465165d07ff388e628a50f59c8aa60a56
Merge: 2885da9 d030a45
Author: Steve Dickson <steved at redhat.com>
Date:   Fri Sep 10 08:03:09 2010 -0400

    Updated to latest nfs-utils release: nfs-utils-1-2-3-rc5
    
    Update to latest pnfs-nfs-utils release
    
    Signed-off-by: Steve Dickson <steved at redhat.com>

 nfs-utils-1-2-3-rc5.patch      | 5668 +++++++++++++++++++++++++++++++++++++++
 nfs-utils.spec                 |   16 +-
 pnfs-compile.patch             |   54 +
 pnfs-nfs-utils-1-2-3-rc5.patch | 5730 ++++++++++++++++++++++++++++++++++++++++
 4 files changed, 11463 insertions(+), 5 deletions(-)
---
diff --cc nfs-utils.spec
index 572e292,00e49a0..6a026df
--- a/nfs-utils.spec
+++ b/nfs-utils.spec
@@@ -25,8 -24,6 +24,9 @@@ Patch100: nfs-utils-1.2.1-statdpath-man
  Patch101: nfs-utils-1.2.2-statdpath.patch
  Patch102: nfs-utils-1.2.1-exp-subtree-warn-off.patch
  
- Patch200: pnfs-export-opt.patch
++Patch200: pnfs-nfs-utils-1-2-3-rc5.patch
++Patch201: pnfs-compile.patch
 +
  Group: System Environment/Daemons
  Provides: exportfs    = %{epoch}:%{version}-%{release}
  Provides: nfsstat     = %{epoch}:%{version}-%{release}
@@@ -53,7 -50,7 +53,7 @@@ BuildRequires: libgssglue-devel libeven
  BuildRequires: nfs-utils-lib-devel >= 1.1.0-3 libtirpc-devel libblkid-devel
  BuildRequires: krb5-libs >= 1.4 autoconf >= 2.57 openldap-devel >= 2.2
  BuildRequires: automake, libtool, glibc-headers
--BuildRequires: krb5-devel, tcp_wrappers-devel
++BuildRequires: krb5-devel, tcp_wrappers-devel device-mapper-devel
  Requires(pre): shadow-utils >= 4.0.3-25
  Requires(pre): /sbin/chkconfig /sbin/nologin
  Requires: nfs-utils-lib >= 1.1.0-3 libgssglue libevent
@@@ -81,7 -77,6 +80,9 @@@ This package also contains the mount.nf
  %patch101 -p1
  %patch102 -p1
  
 +%patch200 -p1
++%patch201 -p1
++
  # Remove .orig files
  find . -name "*.orig" | xargs rm -f
  
@@@ -250,6 -245,6 +251,8 @@@ f
  /usr/sbin/start-statd
  /usr/sbin/mountstats
  /usr/sbin/nfsiostat
++/usr/sbin/blkmapd
++/usr/sbin/spnfsd
  %{_mandir}/*/*
  %config /etc/rc.d/init.d/nfslock
  
@@@ -259,9 -254,9 +262,12 @@@
  %attr(4755,root,root)   /sbin/umount.nfs4
  
  %changelog
+ * Thu Sep  9 2010 Steve Dickson <steved at redhat.com> 1.2.2-4
+ - Updated to latest upstream RC release: 1.2.3-rc5
+ 
 +* Wed Sep  1 2010 Steve Dickson <steved at redhat.com> 1.2.2-3.pnfs
 +- Added in pNFS.
 +
  * Wed Jun  2 2010 Steve Dickson <steved at redhat.com> 1.2.2-3
  - Standardized init scripts return code (bz 519339)
  - Added in the mount.nfs4 and umount.nfs4 man pages
diff --cc pnfs-compile.patch
index 0000000,0000000..dce22dc
new file mode 100644
--- /dev/null
+++ b/pnfs-compile.patch
@@@ -1,0 -1,0 +1,54 @@@
++diff -up nfs-utils-1.2.2/utils/blkmapd/Makefile.am.orig nfs-utils-1.2.2/utils/blkmapd/Makefile.am
++--- nfs-utils-1.2.2/utils/blkmapd/Makefile.am.orig	2010-09-10 07:36:09.907841295 -0400
+++++ nfs-utils-1.2.2/utils/blkmapd/Makefile.am	2010-09-10 07:39:36.683935973 -0400
++@@ -3,7 +3,6 @@
++ #man8_MANS	= blkmapd.man
++ 
++ AM_CFLAGS	+= -D_LARGEFILE64_SOURCE
++-KPREFIX		= @kprefix@
++ sbin_PROGRAMS	= blkmapd
++ 
++ blkmapd_SOURCES = \
++@@ -21,42 +20,3 @@ blkmapd_LDADD = -ldevmapper ../../suppor
++ 
++ MAINTAINERCLEANFILES = Makefile.in
++ 
++-#######################################################################
++-# The following allows the current practice of having
++-# daemons renamed during the install to include RPCPREFIX
++-# and the KPREFIX
++-# This could all be done much easier with program_transform_name
++-# ( program_transform_name = s/^/$(RPCPREFIX)$(KPREFIX)/ )
++-# but that also renames the man pages, which the current
++-# practice does not do.
++-install-exec-hook:
++-	(cd $(DESTDIR)$(sbindir) && \
++-	  for p in $(sbin_PROGRAMS); do \
++-	    mv -f $$p$(EXEEXT) $(RPCPREFIX)$(KPREFIX)$$p$(EXEEXT) ;\
++-	  done)
++-uninstall-hook:
++-	(cd $(DESTDIR)$(sbindir) && \
++-	  for p in $(sbin_PROGRAMS); do \
++-	    rm -f $(RPCPREFIX)$(KPREFIX)$$p$(EXEEXT) ;\
++-	  done)
++-
++-
++-# XXX This makes some assumptions about what automake does.
++-# XXX But there is no install-man-hook or install-man-local.
++-install-man: install-man8 install-man-links
++-uninstall-man: uninstall-man8 uninstall-man-links
++-
++-install-man-links:
++-	(cd $(DESTDIR)$(man8dir) && \
++-	  for m in $(man8_MANS) $(dist_man8_MANS) $(nodist_man8_MANS); do \
++-	    inst=`echo $$m | sed -e 's/man$$/8/'`; \
++-	    rm -f $(RPCPREFIX)$$inst ; \
++-	    $(LN_S) $$inst $(RPCPREFIX)$$inst ; \
++-	  done)
++-
++-uninstall-man-links:
++-	(cd $(DESTDIR)$(man8dir) && \
++-	  for m in $(man8_MANS) $(dist_man8_MANS) $(nodist_man8_MANS); do \
++-	    inst=`echo $$m | sed -e 's/man$$/8/'`; \
++-	    rm -f $(RPCPREFIX)$$inst ; \
++-	  done)
diff --cc pnfs-nfs-utils-1-2-3-rc5.patch
index 0000000,0000000..da867e2
new file mode 100644
--- /dev/null
+++ b/pnfs-nfs-utils-1-2-3-rc5.patch
@@@ -1,0 -1,0 +1,5730 @@@
++diff -up nfs-utils-1.2.2/configure.ac.orig nfs-utils-1.2.2/configure.ac
++--- nfs-utils-1.2.2/configure.ac.orig	2010-09-09 19:46:28.697873598 -0400
+++++ nfs-utils-1.2.2/configure.ac	2010-09-10 07:09:34.161831546 -0400
++@@ -72,11 +72,15 @@ AC_ARG_ENABLE(nfsv4,
++ 	enable_nfsv4=yes)
++ 	if test "$enable_nfsv4" = yes; then
++ 		AC_DEFINE(NFS4_SUPPORTED, 1, [Define this if you want NFSv4 support compiled in])
+++		BLKMAPD=blkmapd
++ 		IDMAPD=idmapd
+++		SPNFSD=spnfsd
++ 	else
++ 		enable_nfsv4=
+++		BLKMAPD=
++ 		IDMAPD=
++ 	fi
+++	AC_SUBST(BLKMAPD)
++ 	AC_SUBST(IDMAPD)
++ 	AC_SUBST(enable_nfsv4)
++ 	AM_CONDITIONAL(CONFIG_NFSV4, [test "$enable_nfsv4" = "yes"])
++@@ -439,9 +443,11 @@ AC_CONFIG_FILES([
++ 	tools/mountstats/Makefile
++ 	tools/nfs-iostat/Makefile
++ 	utils/Makefile
+++	utils/blkmapd/Makefile
++ 	utils/exportfs/Makefile
++ 	utils/gssd/Makefile
++ 	utils/idmapd/Makefile
+++	utils/spnfsd/Makefile
++ 	utils/mount/Makefile
++ 	utils/mountd/Makefile
++ 	utils/nfsd/Makefile
++diff -up nfs-utils-1.2.2/support/include/nfslib.h.orig nfs-utils-1.2.2/support/include/nfslib.h
++--- nfs-utils-1.2.2/support/include/nfslib.h.orig	2010-09-09 19:46:28.657955935 -0400
+++++ nfs-utils-1.2.2/support/include/nfslib.h	2010-09-10 07:09:34.162831455 -0400
++@@ -89,6 +89,7 @@ struct exportent {
++ 	char *          e_fslocdata;
++ 	char *		e_uuid;
++ 	struct sec_entry e_secinfo[SECFLAVOR_COUNT+1];
+++	int		e_pnfs;
++ };
++ 
++ struct rmtabent {
++diff -up nfs-utils-1.2.2/support/include/nfs/nfs.h.orig nfs-utils-1.2.2/support/include/nfs/nfs.h
++--- nfs-utils-1.2.2/support/include/nfs/nfs.h.orig	2010-02-18 07:35:00.000000000 -0500
+++++ nfs-utils-1.2.2/support/include/nfs/nfs.h	2010-09-10 07:09:34.161831546 -0400
++@@ -47,6 +47,7 @@ struct nfs_fh_old {
++ #define NFSCTL_GETFH		6	/* get an fh (used by mountd) */
++ #define NFSCTL_GETFD		7	/* get an fh by path (used by mountd) */
++ #define NFSCTL_GETFS		8	/* get an fh by path with max size (used by mountd) */
+++#define NFSCTL_FD2FH		9	/* get a fh from a fd */
++ 
++ #define NFSCTL_UDPBIT		      (1 << (17 - 1))
++ #define NFSCTL_TCPBIT		      (1 << (18 - 1))
++@@ -136,6 +137,11 @@ struct nfsctl_fsparm {
++ 	int			gd_maxlen;
++ };
++ 
+++/* FD2FH */
+++struct nfsctl_fd2fh {
+++	int			fd;
+++};
+++
++ /*
++  * This is the argument union.
++  */
++@@ -149,6 +155,7 @@ struct nfsctl_arg {
++ 		struct nfsctl_fhparm	u_getfh;
++ 		struct nfsctl_fdparm	u_getfd;
++ 		struct nfsctl_fsparm	u_getfs;
+++		struct nfsctl_fd2fh	u_fd2fh;
++ 	} u;
++ #define ca_svc		u.u_svc
++ #define ca_client	u.u_client
++@@ -157,6 +164,7 @@ struct nfsctl_arg {
++ #define ca_getfh	u.u_getfh
++ #define ca_getfd	u.u_getfd
++ #define ca_getfs	u.u_getfs
+++#define ca_fd2fh	u.u_fd2fh
++ #define ca_authd	u.u_authd
++ };
++ 
++diff -up nfs-utils-1.2.2/support/nfs/exports.c.orig nfs-utils-1.2.2/support/nfs/exports.c
++--- nfs-utils-1.2.2/support/nfs/exports.c.orig	2010-09-09 19:46:28.700904316 -0400
+++++ nfs-utils-1.2.2/support/nfs/exports.c	2010-09-10 07:09:34.163831429 -0400
++@@ -107,6 +107,7 @@ static void init_exportent (struct expor
++ 	ee->e_nsquids = 0;
++ 	ee->e_nsqgids = 0;
++ 	ee->e_uuid = NULL;
+++	ee->e_pnfs = 0;
++ }
++ 
++ struct exportent *
++@@ -299,6 +300,8 @@ putexportent(struct exportent *ep)
++ 	}
++ 	fprintf(fp, "anonuid=%d,anongid=%d", ep->e_anonuid, ep->e_anongid);
++ 	secinfo_show(fp, ep);
+++	if (ep->e_pnfs)
+++		fprintf(fp, ",pnfs");
++ 	fprintf(fp, ")\n");
++ }
++ 
++@@ -557,6 +560,10 @@ parseopts(char *cp, struct exportent *ep
++ 			clearflags(NFSEXP_NOACL, active, ep);
++ 		else if (strcmp(opt, "no_acl") == 0)
++ 			setflags(NFSEXP_NOACL, active, ep);
+++		else if (strcmp(opt, "pnfs") == 0)
+++			ep->e_pnfs = 1;
+++		else if (strcmp(opt, "no_pnfs") == 0)
+++			ep->e_pnfs = 0;
++ 		else if (strncmp(opt, "anonuid=", 8) == 0) {
++ 			char *oe;
++ 			ep->e_anonuid = strtol(opt+8, &oe, 10);
++diff -up nfs-utils-1.2.2/utils/blkmapd/atomicio.c.orig nfs-utils-1.2.2/utils/blkmapd/atomicio.c
++--- nfs-utils-1.2.2/utils/blkmapd/atomicio.c.orig	2010-09-10 07:09:34.164831472 -0400
+++++ nfs-utils-1.2.2/utils/blkmapd/atomicio.c	2010-09-10 07:09:34.165831408 -0400
++@@ -0,0 +1,54 @@
+++/*
+++ * Copyright (c) 2002 Marius Aamodt Eriksen <marius at monkey.org>
+++ * Copyright (c) 1995,1999 Theo de Raadt.  All rights reserved.
+++ * All rights reserved.
+++ *
+++ * Redistribution and use in source and binary forms, with or without
+++ * modification, are permitted provided that the following conditions
+++ * are met:
+++ * 1. Redistributions of source code must retain the above copyright
+++ *    notice, this list of conditions and the following disclaimer.
+++ * 2. Redistributions in binary form must reproduce the above copyright
+++ *    notice, this list of conditions and the following disclaimer in the
+++ *    documentation and/or other materials provided with the distribution.
+++ *
+++ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
+++ * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
+++ * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
+++ * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
+++ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
+++ * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+++ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+++ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+++ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
+++ * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+++ */
+++
+++#include <sys/types.h>
+++#include <unistd.h>
+++#include <errno.h>
+++
+++/*
+++ * ensure all of data on socket comes through. f==read || f==write
+++ */
+++ssize_t atomicio(ssize_t(*f) (int, void *, size_t), int fd, void *_s, size_t n)
+++{
+++	char *s = _s;
+++	ssize_t res, pos = 0;
+++
+++	while (n > pos) {
+++		res = (f) (fd, s + pos, n - pos);
+++		switch (res) {
+++		case -1:
+++			if (errno == EINTR || errno == EAGAIN)
+++				continue;
+++		case 0:
+++			if (pos != 0)
+++				return pos;
+++			return res;
+++		default:
+++			pos += res;
+++		}
+++	}
+++	return pos;
+++}
++diff -up nfs-utils-1.2.2/utils/blkmapd/cfg.c.orig nfs-utils-1.2.2/utils/blkmapd/cfg.c
++--- nfs-utils-1.2.2/utils/blkmapd/cfg.c.orig	2010-09-10 07:09:34.165831408 -0400
+++++ nfs-utils-1.2.2/utils/blkmapd/cfg.c	2010-09-10 07:09:34.165831408 -0400
++@@ -0,0 +1,248 @@
+++/*
+++ * Copyright (c) 2010 EMC Corporation, Haiying Tang <Tang_Haiying at emc.com>
+++ * All rights reserved.
+++ *
+++ * Redistribution and use in source and binary forms, with or without
+++ * modification, are permitted provided that the following conditions
+++ * are met:
+++ * 1. Redistributions of source code must retain the above copyright
+++ *    notice, this list of conditions and the following disclaimer.
+++ * 2. Redistributions in binary form must reproduce the above copyright
+++ *    notice, this list of conditions and the following disclaimer in the
+++ *    documentation and/or other materials provided with the distribution.
+++ *
+++ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
+++ * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
+++ * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
+++ * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
+++ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
+++ * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+++ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+++ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+++ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
+++ * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+++ */
+++
+++#include <sys/param.h>
+++#include <sys/stat.h>
+++#include <linux/errno.h>
+++#include <stdio.h>
+++#include <stdlib.h>
+++#include <unistd.h>
+++#include <string.h>
+++#include <fcntl.h>
+++#include <ctype.h>
+++
+++#include "device-discovery.h"
+++#include "cfg.h"
+++
+++char *conf_path = "/etc/blkmapd.conf";
+++
+++struct scan_root_list *scan_root_list_head;
+++
+++void bl_release_list(void)
+++{
+++	struct scan_root_list *root = scan_root_list_head;
+++	struct scan_device_list *disk;
+++
+++	while (root) {
+++		disk = root->disk;
+++		while (disk) {
+++			root->disk = disk->next;
+++			free(disk->name);
+++			free(disk);
+++			disk = root->disk;
+++		}
+++		scan_root_list_head = root->next;
+++		free(root->name);
+++		free(root);
+++		root = scan_root_list_head;
+++	}
+++}
+++
+++struct scan_root_list *bl_alloc_root_list(char *name, int all_disk)
+++{
+++	struct scan_root_list *root;
+++
+++	root = malloc(sizeof(struct scan_root_list));
+++	if (!root)
+++		goto nomem;
+++
+++	root->name = strdup(name);
+++	if (!root->name)
+++		goto nomem;
+++	root->next = scan_root_list_head;
+++	root->all_disk = all_disk;
+++	scan_root_list_head = root;
+++	return root;
+++
+++ nomem:
+++	BL_LOG_ERR("%s: Out of memory!\n", __func__);
+++	if (root)
+++		free(root);
+++	return NULL;
+++}
+++
+++struct scan_device_list *bl_alloc_device_list(struct scan_root_list *root,
+++					      char *name)
+++{
+++	struct scan_device_list *device;
+++
+++	device = malloc(sizeof(struct scan_device_list));
+++	if (!device)
+++		goto nomem;
+++
+++	device->name = strdup(name);
+++	if (!device->name)
+++		goto nomem;
+++	device->next = root->disk;
+++	root->disk = device;
+++	return device;
+++
+++ nomem:
+++	BL_LOG_ERR("%s: Out of memory!\n", __func__);
+++	if (device)
+++		free(device);
+++	return NULL;
+++}
+++
+++struct scan_device_list *bl_insert_device_list(struct scan_root_list *root,
+++					       char *name)
+++{
+++	struct scan_device_list *device = root->disk;
+++
+++	/* Check whether this device has been inserted */
+++	while (device) {
+++		if (device->name && !strcmp(device->name, name))
+++			return device;
+++		device = device->next;
+++	}
+++
+++	return bl_alloc_device_list(root, name);
+++}
+++
+++struct scan_root_list *bl_insert_root_list(char *name, int all_disk)
+++{
+++	struct scan_root_list *root = scan_root_list_head;
+++
+++	/* Check whether this root has been inserted */
+++	while (root) {
+++		if (root->name && !strcmp(root->name, name))
+++			return root;
+++		root = root->next;
+++	}
+++
+++	return bl_alloc_root_list(name, all_disk);
+++}
+++
+++int bl_parse_line(char *line, struct scan_root_list **bl_root)
+++{
+++	char *root, *device, *end;
+++
+++	root = strdup(line);
+++	end = root + strlen(line);
+++
+++	/* Skip comments */
+++	if (*root == '#')
+++		return 0;
+++
+++	/* Trim leading space */
+++	while (*root != '\0' && isspace(*root))
+++		root++;
+++	if (*root == '\0')
+++		return 0;
+++
+++	/* Trim trailing space and set "end" to last char */
+++	while ((isspace(*end) || (*end == '\0')) && (end > root))
+++		end--;
+++
+++	/* For lines ending with '/' or '/','*': add as a dir root */
+++	if ((*end == '/') ||
+++	    ((*end == '*') && (end - root >= 1) && (*(end - 1) == '/'))) {
+++		if (*end == '*')
+++			end--;
+++		if (*end == '/')
+++			end--;
+++		*(end + 1) = '\0';
+++		*bl_root = bl_insert_root_list(root, 1);
+++		return 0;
+++	}
+++
+++	/* Other lines: add as a device */
+++	device = end;
+++	while ((*device != '/') && (device > root))
+++		device--;
+++	if (device == root) {
+++		BL_LOG_ERR("%s: invalid config line\n", __func__);
+++		return -1;
+++	}
+++	*device = '\0';
+++	*bl_root = bl_insert_root_list(root, 0);
+++	if (*bl_root == NULL)
+++		return -ENOMEM;
+++	if (*end == '*')
+++		end--;
+++	*(end + 1) = '\0';
+++	if (bl_insert_device_list(*bl_root, device + 1) == NULL)
+++		return -ENOMEM;
+++
+++	return 0;
+++}
+++
+++int bl_set_default_conf(void)
+++{
+++	struct scan_root_list *root = NULL;
+++	int rv;
+++
+++	bl_release_list();
+++	rv = bl_parse_line("/dev/sd*", &root);
+++	if (rv < 0)
+++		return rv;
+++	rv = bl_parse_line("/dev/mapper/", &root);
+++	return rv;
+++}
+++
+++int bl_parse_conf(char *buf)
+++{
+++	char *tmp = buf, *line = buf, *end = buf + strlen(buf);
+++	struct scan_root_list *bl_root = NULL;
+++	int rv;
+++
+++	while (tmp < end) {
+++		if (*tmp == '\n') {
+++			*tmp = '\0';
+++			rv = bl_parse_line(line, &bl_root);
+++			if (rv < 0)
+++				return rv;
+++			line = tmp + 1;
+++		}
+++		tmp++;
+++	}
+++
+++	return 0;
+++}
+++
+++int bl_cfg_init(void)
+++{
+++	struct scan_root_list *root = NULL;
+++	FILE *f = NULL;
+++	char buf[PATH_MAX];
+++	int rv = 0;
+++
+++	f = fopen(conf_path, "r");
+++	if (f == NULL)
+++		rv = bl_set_default_conf();
+++	else {
+++		while (fgets(buf, sizeof buf, f) != NULL) {
+++			rv = bl_parse_line(buf, &root);
+++			if (rv < 0)
+++				break;
+++		}
+++	}
+++	if (!scan_root_list_head)
+++		rv = -EINVAL;
+++
+++	if (f)
+++		fclose(f);
+++	return rv;
+++}
++diff -up nfs-utils-1.2.2/utils/blkmapd/cfg.h.orig nfs-utils-1.2.2/utils/blkmapd/cfg.h
++--- nfs-utils-1.2.2/utils/blkmapd/cfg.h.orig	2010-09-10 07:09:34.167018771 -0400
+++++ nfs-utils-1.2.2/utils/blkmapd/cfg.h	2010-09-10 07:09:34.167018771 -0400
++@@ -0,0 +1,47 @@
+++/*
+++ * bl-cfg.h
+++ *
+++ * Copyright (c) 2010 EMC Corporation, Haiying Tang <Tang_Haiying at emc.com>
+++ * All rights reserved.
+++ *
+++ * Redistribution and use in source and binary forms, with or without
+++ * modification, are permitted provided that the following conditions
+++ * are met:
+++ * 1. Redistributions of source code must retain the above copyright
+++ *    notice, this list of conditions and the following disclaimer.
+++ * 2. Redistributions in binary form must reproduce the above copyright
+++ *    notice, this list of conditions and the following disclaimer in the
+++ *    documentation and/or other materials provided with the distribution.
+++ *
+++ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
+++ * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
+++ * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
+++ * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
+++ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
+++ * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+++ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+++ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+++ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
+++ * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+++ */
+++#ifndef BL_CFG_H
+++#define BL_CFG_H
+++
+++extern char *conf_path;
+++extern struct scan_root_list *scan_root_list_head;
+++
+++struct scan_device_list {
+++	struct scan_device_list *next;
+++	char *name;
+++};
+++
+++struct scan_root_list {
+++	struct scan_root_list *next;
+++	unsigned int all_disk;
+++	char *name;
+++	struct scan_device_list *disk;
+++};
+++
+++int bl_cfg_init(void);
+++
+++#endif
++diff -up nfs-utils-1.2.2/utils/blkmapd/device-discovery.c.orig nfs-utils-1.2.2/utils/blkmapd/device-discovery.c
++--- nfs-utils-1.2.2/utils/blkmapd/device-discovery.c.orig	2010-09-10 07:09:34.167018771 -0400
+++++ nfs-utils-1.2.2/utils/blkmapd/device-discovery.c	2010-09-10 07:09:34.168028756 -0400
++@@ -0,0 +1,502 @@
+++/*
+++ * device-discovery.c: main function, discovering device and processing
+++ * pipe request from kernel.
+++ *
+++ * Copyright (c) 2010 EMC Corporation, Haiying Tang <Tang_Haiying at emc.com>
+++ * All rights reserved.
+++ *
+++ * Redistribution and use in source and binary forms, with or without
+++ * modification, are permitted provided that the following conditions
+++ * are met:
+++ * 1. Redistributions of source code must retain the above copyright
+++ *    notice, this list of conditions and the following disclaimer.
+++ * 2. Redistributions in binary form must reproduce the above copyright
+++ *    notice, this list of conditions and the following disclaimer in the
+++ *    documentation and/or other materials provided with the distribution.
+++ *
+++ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
+++ * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
+++ * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
+++ * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
+++ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
+++ * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+++ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+++ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+++ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
+++ * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+++ */
+++
+++#include <stdlib.h>
+++#include <stdio.h>
+++#include <string.h>
+++#include <dirent.h>
+++#include <ctype.h>
+++#include <linux/kdev_t.h>
+++#include <sys/types.h>
+++#include <sys/stat.h>
+++#include <sys/ioctl.h>
+++#include <sys/mount.h>
+++#include <sys/select.h>
+++#include <fcntl.h>
+++#include <unistd.h>
+++#include <libgen.h>
+++#include <errno.h>
+++#include <scsi/scsi.h>
+++#include <scsi/scsi_ioctl.h>
+++#include <scsi/sg.h>
+++#include "device-discovery.h"
+++#include "cfg.h"
+++
+++#define BL_PIPE_FILE	"/var/lib/nfs/rpc_pipefs/bl_device_pipe"
+++#define PID_FILE	"/var/run/blkmapd.pid"
+++
+++struct bl_disk *visible_disk_list;
+++
+++struct bl_disk_path *bl_get_path(const char *filepath,
+++				 struct bl_disk_path *paths)
+++{
+++	struct bl_disk_path *tmp = paths;
+++	while (tmp) {
+++		if (!strcmp(tmp->full_path, filepath))
+++			break;
+++		tmp = tmp->next;
+++	}
+++	return tmp;
+++}
+++
+++/* Check whether valid_path is a substring(partition) of path */
+++int bl_is_partition(struct bl_disk_path *valid_path, struct bl_disk_path *path)
+++{
+++	if (!strncmp(valid_path->full_path, path->full_path,
+++		     strlen(valid_path->full_path)))
+++		return 1;
+++
+++	return 0;
+++}
+++
+++/*
+++ * For multipath devices, devices state could be PASSIVE/ACTIVE/PSEUDO,
+++ * where PSEUDO > ACTIVE > PASSIVE. Device with highest state is used to
+++ * create pseudo device. So if state is higher, the device path needs to
+++ * be updated.
+++ * If device-mapper multipath support is a must, pseudo devices should
+++ * exist for each multipath device. If not, active device path will be
+++ * chosen for device creation.
+++ * Treat partition as invalid path.
+++ */
+++int bl_update_path(struct bl_disk_path *path, enum bl_path_state_e state,
+++		   struct bl_disk *disk)
+++{
+++	struct bl_disk_path *valid_path = disk->valid_path;
+++
+++	if (valid_path) {
+++		if (valid_path->state >= state) {
+++			if (bl_is_partition(valid_path, path))
+++				return 0;
+++		}
+++	}
+++	return 1;
+++}
+++
+++void bl_release_disk(void)
+++{
+++	struct bl_disk *disk;
+++	struct bl_disk_path *path = NULL;
+++
+++	while (visible_disk_list) {
+++		disk = visible_disk_list;
+++		path = disk->paths;
+++		while (path) {
+++			disk->paths = path->next;
+++			free(path->full_path);
+++			free(path);
+++			path = disk->paths;
+++		}
+++		if (disk->serial)
+++			free(disk->serial);
+++		visible_disk_list = disk->next;
+++		free(disk);
+++	}
+++}
+++
+++void bl_add_disk(char *filepath)
+++{
+++	struct bl_disk *disk = NULL;
+++	int fd = 0;
+++	struct stat sb;
+++	off_t size = 0;
+++	struct bl_serial *serial = NULL;
+++	enum bl_path_state_e ap_state = BL_PATH_STATE_PASSIVE;
+++	struct bl_disk_path *diskpath = NULL, *path = NULL;
+++	dev_t dev;
+++
+++	BL_LOG_ERR("%s: %s\n", __func__, filepath);
+++
+++	fd = open(filepath, O_RDONLY | O_LARGEFILE);
+++	if (fd < 0)
+++		return;
+++
+++	if (fstat(fd, &sb)) {
+++		close(fd);
+++		return;
+++	}
+++
+++	if (!sb.st_size)
+++		ioctl(fd, BLKGETSIZE, &size);
+++	else
+++		size = sb.st_size;
+++
+++	if (!size) {
+++		close(fd);
+++		return;
+++	}
+++
+++	dev = sb.st_rdev;
+++	serial = bldev_read_serial(fd, filepath);
+++
+++	for (disk = visible_disk_list; disk != NULL; disk = disk->next) {
+++		/* Already scanned or a partition?
+++		 * XXX: if released each time, maybe not need to compare
+++		 */
+++		if ((serial->len == disk->serial->len) &&
+++		    !memcmp(serial->data, disk->serial->data, serial->len)) {
+++			diskpath = bl_get_path(filepath, disk->paths);
+++			break;
+++		}
+++	}
+++
+++	if (disk && diskpath) {
+++		close(fd);
+++		return;
+++	}
+++
+++	bldev_read_ap_state(fd, &ap_state);
+++	close(fd);
+++
+++	/*
+++	 * Not sure how to identify a pseudo device created by
+++	 * device-mapper, so leave /dev/mapper for now.
+++	 */
+++	if (strncmp(filepath, "/dev/mapper", 11) == 0)
+++		ap_state = BL_PATH_STATE_PSEUDO;
+++
+++	/* add path */
+++	path = malloc(sizeof(struct bl_disk_path));
+++	if (!path) {
+++		BL_LOG_ERR("%s: Out of memory!\n", __func__);
+++		goto out_err;
+++	}
+++	path->next = NULL;
+++	path->state = ap_state;
+++	path->full_path = strdup(filepath);
+++	if (!path->full_path)
+++		goto out_err;
+++
+++	if (!disk) {		/* add disk */
+++		disk = malloc(sizeof(struct bl_disk));
+++		if (!disk) {
+++			BL_LOG_ERR("%s: Out of memory!\n", __func__);
+++			goto out_err;
+++		}
+++		disk->next = visible_disk_list;
+++		disk->dev = dev;
+++		disk->size = size;
+++		disk->serial = serial;
+++		disk->valid_path = path;
+++		disk->paths = path;
+++		visible_disk_list = disk;
+++	} else {
+++		path->next = disk->paths;
+++		disk->paths = path;
+++		/* check whether we need to update disk info */
+++		if (bl_update_path(path, path->state, disk)) {
+++			disk->dev = dev;
+++			disk->size = size;
+++			disk->valid_path = path;
+++		}
+++	}
+++	return;
+++
+++ out_err:
+++	if (path) {
+++		if (path->full_path)
+++			free(path->full_path);
+++		free(path);
+++	}
+++	return;
+++}
+++
+++void bl_devicescan(const char *filename, struct scan_root_list *root)
+++{
+++	/* scan all disks */
+++	char filepath[PATH_MAX];
+++	struct scan_device_list *device;
+++
+++	if (!strcmp(filename, ".") || !strcmp(filename, ".."))
+++		return;
+++
+++	memset(filepath, 0, sizeof(filepath));
+++	if (strlen(filename) < (PATH_MAX - strlen(root->name) - 2))
+++		sprintf(filepath, "%s/%s", root->name, filename);
+++	else {
+++		BL_LOG_ERR("%s: name too long\n", __func__);
+++		return;
+++	}
+++	if (root->all_disk)
+++		goto valid;
+++
+++	device = root->disk;
+++	while (device) {
+++		/* If device->name is a subset of filename, this disk should be
+++		 * valid for scanning.
+++		 * For example, device->name is "sd", filename is "sda".
+++		 */
+++		if (device->name
+++		    && !memcmp(filename, device->name, strlen(device->name)))
+++			goto valid;
+++		device = device->next;
+++	}
+++
+++	return;
+++
+++ valid:
+++	/*
+++	 * sg device is not a real device, but a device created according
+++	 * to each scsi device. It won't be used for pseudo device creation.
+++	 * I moved it here, so that sg devices will not be scanned.
+++	 */
+++	if (!strncmp(filepath, "/dev/sg", 7))
+++		return;
+++	bl_add_disk(filepath);
+++	return;
+++}
+++
+++int bl_discover_devices(void)
+++{
+++	DIR *dir;
+++	struct dirent *dp;
+++	struct scan_root_list *root = scan_root_list_head;
+++
+++	/* release previous list */
+++	bl_release_disk();
+++
+++	/* scan all disks */
+++	while (root) {
+++		dir = opendir(root->name);
+++		if (dir == NULL) {
+++			root = root->next;
+++			continue;
+++		}
+++
+++		while ((dp = readdir(dir)) != NULL)
+++			bl_devicescan(dp->d_name, root);
+++
+++		root = root->next;
+++		closedir(dir);
+++	}
+++
+++	return 0;
+++}
+++
+++/* process kernel request
+++ * return 0: request processed, and no more request waiting;
+++ * return 1: request processed, and more requests waiting;
+++ * return < 0: error
+++ */
+++int bl_disk_inquiry_process(int fd)
+++{
+++	int ret = 0;
+++	struct pipefs_hdr *head = NULL, *tmp;
+++	char *buf = NULL;
+++	uint32_t major, minor;
+++	uint16_t buflen;
+++	unsigned int len = 0;
+++
+++	head = calloc(1, sizeof(struct pipefs_hdr));
+++	if (!head) {
+++		BL_LOG_ERR("%s: Out of memory!\n", __func__);
+++		return -ENOMEM;
+++	}
+++
+++	/* read request */
+++	if (atomicio(read, fd, head, sizeof(*head)) != sizeof(*head)) {
+++		/* Note that an error in this or the next read is pretty
+++		 * catastrophic, as there is no good way to resync into
+++		 * the pipe's stream.
+++		 */
+++		BL_LOG_ERR("Read pipefs head error!\n");
+++		ret = -EIO;
+++		goto out;
+++	}
+++
+++	buflen = head->totallen - sizeof(*head);
+++	buf = malloc(buflen);
+++	if (!buf) {
+++		BL_LOG_ERR("%s: Out of memory!\n", __func__);
+++		ret = -ENOMEM;
+++		goto out;
+++	}
+++
+++	if (atomicio(read, fd, buf, buflen) != buflen) {
+++		BL_LOG_ERR("Read pipefs content error!\n");
+++		ret = -EIO;
+++		goto out;
+++	}
+++
+++	head->status = BL_DEVICE_REQUEST_PROC;
+++	switch (head->type) {
+++	case BL_DEVICE_MOUNT:
+++		if (!process_deviceinfo(buf, buflen, &major, &minor)) {
+++			head->status = BL_DEVICE_REQUEST_ERR;
+++			goto out;
+++		}
+++		tmp = realloc(head, sizeof(major) + sizeof(minor) +
+++			      sizeof(struct pipefs_hdr));
+++		if (!tmp) {
+++			BL_LOG_ERR("%s: Out of memory!\n", __func__);
+++			ret = -ENOMEM;
+++			goto out;
+++		}
+++		head = tmp;
+++		memcpy((void *)head + sizeof(struct pipefs_hdr),
+++		       &major, sizeof(major));
+++		memcpy((void *)head + sizeof(struct pipefs_hdr) + sizeof(major),
+++		       &minor, sizeof(minor));
+++		len = sizeof(major) + sizeof(minor);
+++		break;
+++	case BL_DEVICE_UMOUNT:
+++		if (!dm_device_remove_all((uint64_t *) buf))
+++			head->status = BL_DEVICE_REQUEST_ERR;
+++		bl_discover_devices();
+++		break;
+++	default:
+++		head->status = BL_DEVICE_REQUEST_ERR;
+++	}
+++
+++	head->totallen = sizeof(struct pipefs_hdr) + len;
+++	/* write to pipefs */
+++	if (atomicio((void *)write, fd, head, head->totallen)
+++	    != head->totallen) {
+++		BL_LOG_ERR("Write pipefs error!\n");
+++		ret = -EIO;
+++	}
+++
+++ out:
+++	if (buf)
+++		free(buf);
+++	if (head)
+++		free(head);
+++	return ret;
+++}
+++
+++/* TODO: set bl_process_stop to 1 in command */
+++unsigned int bl_process_stop;
+++
+++int bl_run_disk_inquiry_process(int fd)
+++{
+++	fd_set rset;
+++	struct timeval tv;
+++	int ret;
+++
+++	bl_process_stop = 0;
+++
+++	for (;;) {
+++		if (bl_process_stop)
+++			return 1;
+++		FD_ZERO(&rset);
+++		FD_SET(fd, &rset);
+++		ret = 0;
+++		tv.tv_sec = BL_DEVICE_DISCOVERY_INTERVAL;
+++		switch (select(fd + 1, &rset, NULL, NULL, &tv)) {
+++		case -1:
+++			if (errno == EINTR)
+++				continue;
+++			else {
+++				ret = -errno;
+++				goto out;
+++			}
+++		case 0:
+++			goto out;
+++		default:
+++			if (FD_ISSET(fd, &rset))
+++				ret = bl_disk_inquiry_process(fd);
+++		}
+++	}
+++ out:
+++	return ret;
+++}
+++
+++/* Daemon */
+++int main(int argc, char **argv)
+++{
+++	int fd, opt, fg = 0, ret = 1;
+++	struct stat statbuf;
+++	char pidbuf[64];
+++
+++	while ((opt = getopt(argc, argv, "c:f")) != -1) {
+++		switch (opt) {
+++		case 'c':
+++			conf_path = optarg;
+++			break;
+++		case 'f':
+++			fg = 1;
+++			break;
+++		}
+++	}
+++
+++	if (!stat(PID_FILE, &statbuf)) {
+++		fprintf(stderr, "Pid file already existed\n");
+++		return -1;
+++	}
+++
+++	if (!fg && daemon(0, 0) != 0) {
+++		fprintf(stderr, "Daemonize failed\n");
+++		return -1;
+++	}
+++
+++	openlog("blkmapd", LOG_PID, 0);
+++	fd = open(PID_FILE, O_WRONLY | O_CREAT, 0644);
+++	if (fd < 0) {
+++		BL_LOG_ERR("Create pid file failed\n");
+++		return -1;
+++	}
+++
+++	if (lockf(fd, F_TLOCK, 0) < 0) {
+++		BL_LOG_ERR("Lock pid file failed\n");
+++		close(fd);
+++		return -1;
+++	}
+++	ftruncate(fd, 0);
+++	sprintf(pidbuf, "%d\n", getpid());
+++	write(fd, pidbuf, strlen(pidbuf));
+++
+++	/* open pipe file */
+++	fd = open(BL_PIPE_FILE, O_RDWR);
+++	if (fd < 0) {
+++		BL_LOG_ERR("open pipe file error\n");
+++		return -1;
+++	}
+++
+++	ret = bl_cfg_init();
+++	if (ret < 0) {
+++		if (ret == -ENOENT)
+++			BL_LOG_WARNING("Config file not exist, use default\n");
+++		else {
+++			BL_LOG_ERR("Open/read Block pNFS config file error\n");
+++			return -1;
+++		}
+++	}
+++
+++	while (1) {
+++		/* discover device when needed */
+++		bl_discover_devices();
+++
+++		ret = bl_run_disk_inquiry_process(fd);
+++		if (ret < 0) {
+++			/* what should we do with process error? */
+++			BL_LOG_ERR("inquiry process return %d\n", ret);
+++		}
+++	}
+++	close(fd);
+++	return ret;
+++}
++diff -up nfs-utils-1.2.2/utils/blkmapd/device-discovery.h.orig nfs-utils-1.2.2/utils/blkmapd/device-discovery.h
++--- nfs-utils-1.2.2/utils/blkmapd/device-discovery.h.orig	2010-09-10 07:09:34.168028756 -0400
+++++ nfs-utils-1.2.2/utils/blkmapd/device-discovery.h	2010-09-10 07:09:34.168028756 -0400
++@@ -0,0 +1,162 @@
+++/*
+++ * bl-device-discovery.h
+++ *
+++ * Copyright (c) 2010 EMC Corporation, Haiying Tang <Tang_Haiying at emc.com>
+++ * All rights reserved.
+++ *
+++ * Redistribution and use in source and binary forms, with or without
+++ * modification, are permitted provided that the following conditions
+++ * are met:
+++ * 1. Redistributions of source code must retain the above copyright
+++ *    notice, this list of conditions and the following disclaimer.
+++ * 2. Redistributions in binary form must reproduce the above copyright
+++ *    notice, this list of conditions and the following disclaimer in the
+++ *    documentation and/or other materials provided with the distribution.
+++ *
+++ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
+++ * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
+++ * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
+++ * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
+++ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
+++ * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+++ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+++ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+++ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
+++ * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+++ */
+++#ifndef BL_DEVICE_DISCOVERY_H
+++#define BL_DEVICE_DISCOVERY_H
+++
+++#define BL_DEVICE_DISCOVERY_INTERVAL 60
+++
+++#include <stdint.h>
+++#include <syslog.h>
+++
+++enum blk_vol_type {
+++	BLOCK_VOLUME_SIMPLE = 0,	/* maps to a single LU */
+++	BLOCK_VOLUME_SLICE = 1,	/* slice of another volume */
+++	BLOCK_VOLUME_CONCAT = 2,	/* concatenation of multiple volumes */
+++	BLOCK_VOLUME_STRIPE = 3,	/* striped across multiple volumes */
+++	BLOCK_VOLUME_PSEUDO = 4,
+++};
+++
+++/* All disk offset/lengths are stored in 512-byte sectors */
+++struct bl_volume {
+++	uint32_t bv_type;
+++	off_t bv_size;
+++	struct bl_volume **bv_vols;
+++	int bv_vol_n;
+++	union {
+++		dev_t bv_dev;	/* for BLOCK_VOLUME_SIMPLE(PSEUDO) */
+++		off_t bv_stripe_unit;	/* for BLOCK_VOLUME_STRIPE(CONCAT) */
+++		off_t bv_offset;	/* for BLOCK_VOLUME_SLICE */
+++	} param;
+++};
+++
+++struct bl_sig_comp {
+++	int64_t bs_offset;	/* In bytes */
+++	uint32_t bs_length;	/* In bytes */
+++	char *bs_string;
+++};
+++
+++/* Maximum number of signatures components in a simple volume */
+++# define BLOCK_MAX_SIG_COMP 16
+++
+++struct bl_sig {
+++	int si_num_comps;
+++	struct bl_sig_comp si_comps[BLOCK_MAX_SIG_COMP];
+++};
+++
+++/*
+++ * Multipath support: ACTIVE or PSEUDO device is valid,
+++ *		      PASSIVE is a standby for ACTIVE.
+++ */
+++enum bl_path_state_e {
+++	BL_PATH_STATE_PASSIVE = 1,
+++	BL_PATH_STATE_ACTIVE = 2,
+++	BL_PATH_STATE_PSEUDO = 3,
+++};
+++
+++struct bl_serial {
+++	int len;
+++	char *data;
+++};
+++
+++struct bl_disk_path {
+++	struct bl_disk_path *next;
+++	char *full_path;
+++	enum bl_path_state_e state;
+++};
+++
+++struct bl_disk {
+++	struct bl_disk *next;
+++	struct bl_serial *serial;
+++	dev_t dev;
+++	off_t size;
+++	struct bl_disk_path *valid_path;
+++	struct bl_disk_path *paths;
+++};
+++
+++struct bl_dev_id {
+++	unsigned char type;
+++	unsigned char ids;
+++	unsigned char reserve;
+++	unsigned char len;
+++	char data[0];
+++};
+++
+++struct pipefs_hdr {
+++	uint32_t msgid;
+++	uint8_t type;
+++	uint8_t flags;
+++	uint16_t totallen;	/* length of entire message, including hdr */
+++	uint32_t status;
+++};
+++
+++#define BL_DEVICE_UMOUNT                0x0	/* Umount--delete devices */
+++#define BL_DEVICE_MOUNT                 0x1	/* Mount--create devices */
+++#define BL_DEVICE_REQUEST_INIT          0x0	/* Start request */
+++#define BL_DEVICE_REQUEST_PROC          0x1	/* User process succeeds */
+++#define BL_DEVICE_REQUEST_ERR           0x2	/* User process fails */
+++
+++uint32_t *blk_overflow(uint32_t * p, uint32_t * end, size_t nbytes);
+++
+++#define BLK_READBUF(p, e, nbytes)  do { \
+++	p = blk_overflow(p, e, nbytes); \
+++	if (!p) {\
+++		goto out_err;\
+++	} \
+++} while (0)
+++
+++#define READ32(x)         (x) = ntohl(*p++)
+++
+++#define READ64(x)         do {                  \
+++	(x) = (uint64_t)ntohl(*p++) << 32;           \
+++	(x) |= ntohl(*p++);                     \
+++} while (0)
+++
+++#define READ_SECTOR(x)     do { \
+++	READ64(tmp); \
+++	if (tmp & 0x1ff) { \
+++		goto out_err; \
+++	} \
+++	(x) = tmp >> 9; \
+++} while (0)
+++
+++extern struct bl_disk *visible_disk_list;
+++uint64_t dm_device_create(struct bl_volume *vols, int num_vols);
+++int dm_device_remove_all(uint64_t *dev);
+++uint64_t process_deviceinfo(const char *dev_addr_buf,
+++			    unsigned int dev_addr_len,
+++			    uint32_t *major, uint32_t *minor);
+++
+++extern ssize_t atomicio(ssize_t(*f) (int, void *, size_t),
+++			int fd, void *_s, size_t n);
+++extern struct bl_serial *bldev_read_serial(int fd, const char *filename);
+++extern void bldev_read_ap_state(int fd, enum bl_path_state_e *ap_state_out);
+++extern int bl_discover_devices(void);
+++
+++#define BL_LOG_WARNING(fmt...)		syslog(LOG_WARNING, fmt)
+++#define BL_LOG_ERR(fmt...)		syslog(LOG_ERR, fmt)
+++#define BL_LOG_DEBUG(fmt...)		syslog(LOG_DEBUG, fmt)
+++#endif
++diff -up nfs-utils-1.2.2/utils/blkmapd/device-inq.c.orig nfs-utils-1.2.2/utils/blkmapd/device-inq.c
++--- nfs-utils-1.2.2/utils/blkmapd/device-inq.c.orig	2010-09-10 07:09:34.169029310 -0400
+++++ nfs-utils-1.2.2/utils/blkmapd/device-inq.c	2010-09-10 07:09:34.169029310 -0400
++@@ -0,0 +1,235 @@
+++/*
+++ * device-inq.c: inquire SCSI device information.
+++ *
+++ * Copyright (c) 2010 EMC Corporation, Haiying Tang <Tang_Haiying at emc.com>
+++ * All rights reserved.
+++ *
+++ * This program refers to "SCSI Primary Commands - 3 (SPC-3)
+++ * at http://www.t10.org and sg_inq.c in sg3_utils-1.26 for
+++ * Linux OS SCSI subsystem, by D. Gilbert.
+++ *
+++ * Redistribution and use in source and binary forms, with or without
+++ * modification, are permitted provided that the following conditions
+++ * are met:
+++ * 1. Redistributions of source code must retain the above copyright
+++ *    notice, this list of conditions and the following disclaimer.
+++ * 2. Redistributions in binary form must reproduce the above copyright
+++ *    notice, this list of conditions and the following disclaimer in the
+++ *    documentation and/or other materials provided with the distribution.
+++ *
+++ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
+++ * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
+++ * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
+++ * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
+++ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
+++ * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+++ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+++ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+++ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
+++ * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+++ */
+++#include <stdlib.h>
+++#include <stdio.h>
+++#include <string.h>
+++#include <dirent.h>
+++#include <ctype.h>
+++#include <sys/types.h>
+++#include <sys/stat.h>
+++#include <sys/ioctl.h>
+++#include <sys/mount.h>
+++#include <sys/select.h>
+++#include <fcntl.h>
+++#include <unistd.h>
+++#include <libgen.h>
+++#include <errno.h>
+++#include <scsi/scsi.h>
+++#include <scsi/scsi_ioctl.h>
+++#include <scsi/sg.h>
+++#include "device-discovery.h"
+++
+++#define DEF_ALLOC_LEN	255
+++#define MX_ALLOC_LEN	(0xc000 + 0x80)
+++
+++struct bl_serial *bl_create_scsi_string(int len, const char *bytes)
+++{
+++	struct bl_serial *s;
+++	s = malloc(sizeof(*s) + len);
+++	if (s) {
+++		s->data = (char *)&s[1];
+++		s->len = len;
+++		memcpy(s->data, bytes, len);
+++	}
+++	return s;
+++}
+++
+++void bl_free_scsi_string(struct bl_serial *str)
+++{
+++	if (str)
+++		free(str);
+++}
+++
+++#define sg_io_ok(io_hdr) \
+++	((((io_hdr).status & 0x7e) == 0) && \
+++	((io_hdr).host_status == 0) && \
+++	(((io_hdr).driver_status & 0x0f) == 0))
+++
+++static int sg_timeout = 1 * 1000;
+++
+++static int bldev_inquire_page(int fd, int page, char *buffer, int len)
+++{
+++	unsigned char cmd[] = { INQUIRY, 0, 0, 0, 0, 0 };
+++	unsigned char sense_b[28];
+++	struct sg_io_hdr io_hdr;
+++	if (page >= 0) {
+++		cmd[1] = 1;
+++		cmd[2] = page;
+++	}
+++	cmd[3] = (unsigned char)((len >> 8) & 0xff);
+++	cmd[4] = (unsigned char)(len & 0xff);
+++
+++	memset(&io_hdr, 0, sizeof(struct sg_io_hdr));
+++	io_hdr.interface_id = 'S';
+++	io_hdr.cmd_len = sizeof(cmd);
+++	io_hdr.mx_sb_len = sizeof(sense_b);
+++	io_hdr.dxfer_direction = SG_DXFER_FROM_DEV;
+++	io_hdr.dxfer_len = len;
+++	io_hdr.dxferp = buffer;
+++	io_hdr.cmdp = cmd;
+++	io_hdr.sbp = sense_b;
+++	io_hdr.timeout = sg_timeout;
+++	if (ioctl(fd, SG_IO, &io_hdr) < 0)
+++		return -1;
+++
+++	if (sg_io_ok(io_hdr))
+++		return 0;
+++	return -1;
+++}
+++
+++int bldev_inquire_pages(int fd, int page, char **buffer)
+++{
+++	int status = 0;
+++	char *tmp;
+++	int len;
+++
+++	*buffer = calloc(DEF_ALLOC_LEN, sizeof(char));
+++	if (!*buffer) {
+++		BL_LOG_ERR("%s: Out of memory!\n", __func__);
+++		return -ENOMEM;
+++	}
+++
+++	status = bldev_inquire_page(fd, page, *buffer, DEF_ALLOC_LEN);
+++	if (status)
+++		goto out;
+++
+++	status = -1;
+++	if ((*(*buffer + 1) & 0xff) != page)
+++		goto out;
+++
+++	len = (*(*buffer + 2) << 8) + *(*buffer + 3) + 4;
+++	if (len > MX_ALLOC_LEN) {
+++		BL_LOG_ERR("SCSI response length too long: %d\n", len);
+++		goto out;
+++	}
+++	if (len > DEF_ALLOC_LEN) {
+++		tmp = realloc(*buffer, len);
+++		if (!tmp) {
+++			BL_LOG_ERR("%s: Out of memory!\n", __func__);
+++			status = -ENOMEM;
+++			goto out;
+++		}
+++		*buffer = tmp;
+++		status = bldev_inquire_page(fd, page, *buffer, len);
+++		if (status)
+++			goto out;
+++	}
+++	status = 0;
+++ out:
+++	return status;
+++}
+++
+++/* For EMC multipath devices, use VPD page (0xc0) to get status.
+++ * For other devices, return ACTIVE for now
+++ */
+++void bldev_read_ap_state(int fd, enum bl_path_state_e *ap_state_out)
+++{
+++	int status = 0;
+++	char *buffer;
+++
+++	*ap_state_out = BL_PATH_STATE_ACTIVE;
+++
+++	status = bldev_inquire_pages(fd, 0xc0, &buffer);
+++	if (status)
+++		goto out;
+++
+++	if (buffer[4] < 0x02)
+++		*ap_state_out = BL_PATH_STATE_PASSIVE;
+++ out:
+++	if (buffer)
+++		free(buffer);
+++	return;
+++}
+++
+++struct bl_serial *bldev_read_serial(int fd, const char *filename)
+++{
+++	struct bl_serial *serial_out = NULL;
+++	int status = 0, pos, len;
+++	char *buffer;
+++	struct bl_dev_id *dev_root, *dev_id;
+++	unsigned int current_id = 0;
+++
+++	status = bldev_inquire_pages(fd, 0x83, &buffer);
+++	if (status)
+++		goto out;
+++
+++	dev_root = (struct bl_dev_id *)buffer;
+++
+++	pos = 0;
+++	current_id = 0;
+++	len = dev_root->len;
+++	while (pos < (len - sizeof(struct bl_dev_id) + sizeof(unsigned char))) {
+++		dev_id = (struct bl_dev_id *)&(dev_root->data[pos]);
+++		if ((dev_id->ids & 0xf) < current_id)
+++			continue;
+++		switch (dev_id->ids & 0xf) {
+++			/* We process SCSI ID with four ID cases: 0, 1, 2 and 3.
+++			 * When more than one ID is available, priority is
+++			 * 3>2>1>0.
+++			 */
+++		case 2:	/* EUI-64 based */
+++			if ((dev_id->len != 8) && (dev_id->len != 12) &&
+++			    (dev_id->len != 16)) {
+++				BL_LOG_ERR("EUI-64 only decodes 8, "
+++					   "12 and 16\n");
+++				break;
+++			}
+++		case 3:	/* NAA */
+++			/* TODO: NAA validity judgement too complicated,
+++			 * so just ingore it here.
+++			 */
+++			if ((dev_id->type & 0xf) != 1) {
+++				BL_LOG_ERR("Binary code_set expected\n");
+++				break;
+++			}
+++		case 0:	/* vendor specific */
+++		case 1:	/* T10 vendor identification */
+++			current_id = dev_id->ids & 0xf;
+++			if (serial_out)
+++				bl_free_scsi_string(serial_out);
+++			serial_out = bl_create_scsi_string(dev_id->len,
+++							   dev_id->data);
+++			break;
+++		default:
+++			break;
+++		}
+++		if (current_id == 3)
+++			break;
+++		pos += (dev_id->len + sizeof(struct bl_dev_id) -
+++			sizeof(unsigned char));
+++	}
+++ out:
+++	if (!serial_out)
+++		serial_out = bl_create_scsi_string(strlen(filename), filename);
+++	if (buffer)
+++		free(buffer);
+++	return serial_out;
+++}
++diff -up nfs-utils-1.2.2/utils/blkmapd/device-process.c.orig nfs-utils-1.2.2/utils/blkmapd/device-process.c
++--- nfs-utils-1.2.2/utils/blkmapd/device-process.c.orig	2010-09-10 07:09:34.170028718 -0400
+++++ nfs-utils-1.2.2/utils/blkmapd/device-process.c	2010-09-10 07:09:34.170028718 -0400
++@@ -0,0 +1,394 @@
+++/*
+++ * device-process.c: detailed processing of device information sent
+++ * from kernel.
+++ *
+++ * Copyright (c) 2006 The Regents of the University of Michigan.
+++ * All rights reserved.
+++ *
+++ *  Andy Adamson <andros at citi.umich.edu>
+++ *  Fred Isaman <iisaman at umich.edu>
+++ *
+++ * Copyright (c) 2010 EMC Corporation, Haiying Tang <Tang_Haiying at emc.com>
+++ *
+++ * Used codes in linux/fs/nfs/blocklayout/blocklayoutdev.c.
+++ *
+++ * Redistribution and use in source and binary forms, with or without
+++ * modification, are permitted provided that the following conditions
+++ * are met:
+++ * 1. Redistributions of source code must retain the above copyright
+++ *    notice, this list of conditions and the following disclaimer.
+++ * 2. Redistributions in binary form must reproduce the above copyright
+++ *    notice, this list of conditions and the following disclaimer in the
+++ *    documentation and/or other materials provided with the distribution.
+++ *
+++ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
+++ * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
+++ * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
+++ * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
+++ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
+++ * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+++ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+++ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+++ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
+++ * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+++ */
+++
+++#include <libdevmapper.h>
+++#include <stdio.h>
+++#include <stdlib.h>
+++#include <string.h>
+++#include <unistd.h>
+++#include <sys/types.h>
+++#include <sys/stat.h>
+++#include <sys/user.h>
+++#include <fcntl.h>
+++#include <errno.h>
+++#include <arpa/inet.h>
+++#include <linux/kdev_t.h>
+++#include "device-discovery.h"
+++
+++uint32_t *blk_overflow(uint32_t * p, uint32_t * end, size_t nbytes)
+++{
+++	uint32_t *q = p + ((nbytes + 3) >> 2);
+++	if (q > end || q < p)
+++		return NULL;
+++	return p;
+++}
+++
+++static int decode_blk_signature(uint32_t **pp, uint32_t *end,
+++				struct bl_sig *sig)
+++{
+++	int i, tmp;
+++	uint32_t *p = *pp;
+++
+++	BLK_READBUF(p, end, 4);
+++	READ32(sig->si_num_comps);
+++	if (sig->si_num_comps == 0) {
+++		BL_LOG_ERR("0 components in sig\n");
+++		goto out_err;
+++	}
+++	if (sig->si_num_comps >= BLOCK_MAX_SIG_COMP) {
+++		BL_LOG_ERR("number of sig comps %i >= BLOCK_MAX_SIG_COMP\n",
+++			   sig->si_num_comps);
+++		goto out_err;
+++	}
+++	for (i = 0; i < sig->si_num_comps; i++) {
+++		BLK_READBUF(p, end, 12);
+++		READ64(sig->si_comps[i].bs_offset);
+++		READ32(tmp);
+++		sig->si_comps[i].bs_length = tmp;
+++		BLK_READBUF(p, end, tmp);
+++		/* Note we rely here on fact that sig is used immediately
+++		 * for mapping, then thrown away.
+++		 */
+++		sig->si_comps[i].bs_string = (char *)p;
+++		BL_LOG_ERR("%s: si_comps[%d]: bs_length %d, bs_string %s\n",
+++			   __func__, i, sig->si_comps[i].bs_length,
+++			   sig->si_comps[i].bs_string);
+++		p += ((tmp + 3) >> 2);
+++	}
+++	*pp = p;
+++	return 0;
+++ out_err:
+++	return -EIO;
+++}
+++
+++/* Read signature from device
+++ * return 0: read successfully
+++ * return -1: error
+++ */
+++int
+++read_cmp_blk_sig(const char *dev_name, struct bl_sig_comp *comp,
+++		 int64_t bs_offset)
+++{
+++	int fd, ret = -1;
+++	char *sig = NULL;
+++
+++	fd = open(dev_name, O_RDONLY | O_LARGEFILE);
+++	if (fd < 0) {
+++		BL_LOG_ERR("%s could not be opened for read\n", dev_name);
+++		goto error;
+++	}
+++
+++	sig = (char *)malloc(comp->bs_length);
+++	if (!sig) {
+++		BL_LOG_ERR("%s: Out of memory\n", __func__);
+++		goto error;
+++	}
+++
+++	if (lseek64(fd, bs_offset, SEEK_SET) == -1) {
+++		BL_LOG_ERR("File %s lseek error\n", dev_name);
+++		goto error;
+++	}
+++
+++	if (atomicio(read, fd, sig, comp->bs_length) != comp->bs_length) {
+++		BL_LOG_ERR("File %s read error\n", dev_name);
+++		goto error;
+++	}
+++
+++	BL_LOG_ERR
+++	    ("%s: %s sig: %s, bs_string: %s, bs_length: %d, bs_offset: %lld\n",
+++	     __func__, dev_name, sig, comp->bs_string, comp->bs_length,
+++	     (long long)bs_offset);
+++	ret = memcmp(sig, comp->bs_string, comp->bs_length);
+++
+++ error:
+++	if (sig)
+++		free(sig);
+++	if (fd >= 0)
+++		close(fd);
+++	return ret;
+++}
+++
+++/*
+++ * All signatures in sig must be found on disk for verification.
+++ * Returns True if sig matches, False otherwise.
+++ */
+++static int verify_sig(struct bl_disk *disk, struct bl_sig *sig)
+++{
+++	struct bl_sig_comp *comp;
+++	int i, ret;
+++	int64_t bs_offset;
+++
+++	for (i = 0; i < sig->si_num_comps; i++) {
+++		comp = &sig->si_comps[i];
+++		bs_offset = comp->bs_offset;
+++		if (bs_offset < 0)
+++			bs_offset += (((int64_t) disk->size) << 9);
+++		BL_LOG_ERR("%s: bs_offset: %lld\n",
+++			   __func__, (long long) bs_offset);
+++		ret = read_cmp_blk_sig(disk->valid_path->full_path,
+++				       comp, bs_offset);
+++		if (ret)
+++			return 0;
+++	}
+++	return 1;
+++}
+++
+++/*
+++ * map_sig_to_device()
+++ * Given a signature, walk the list of visible disks searching for
+++ * a match. Returns True if mapping was done, False otherwise.
+++ *
+++ * While we're at it, fill in the vol->bv_size.
+++ */
+++static int map_sig_to_device(struct bl_sig *sig, struct bl_volume *vol)
+++{
+++	int mapped = 0;
+++	struct bl_disk *disk = visible_disk_list;
+++	char *filepath = 0;
+++	struct bl_disk *lolDisk = disk;
+++
+++	while (lolDisk) {
+++		BL_LOG_ERR("%s: visible_disk_list: %s\n", __func__,
+++			   lolDisk->valid_path->full_path);
+++		lolDisk = lolDisk->next;
+++	}
+++
+++	/* scan disk list to find out match device */
+++	while (disk) {
+++		/* FIXME: should we use better algorithm for disk scan? */
+++		mapped = verify_sig(disk, sig);
+++		if (mapped) {
+++			vol->param.bv_dev = disk->dev;
+++			filepath = disk->valid_path->full_path;
+++			vol->bv_size = disk->size;
+++			break;
+++		}
+++		disk = disk->next;
+++	}
+++	return mapped;
+++}
+++
+++/* We are given an array of XDR encoded array indices, each of which should
+++ * refer to a previously decoded device.  Translate into a list of pointers
+++ * to the appropriate pnfs_blk_volume's.
+++ */
+++static int set_vol_array(uint32_t **pp, uint32_t *end,
+++			 struct bl_volume *vols, int working)
+++{
+++	int i, index;
+++	uint32_t *p = *pp;
+++	struct bl_volume **array = vols[working].bv_vols;
+++	for (i = 0; i < vols[working].bv_vol_n; i++) {
+++		BLK_READBUF(p, end, 4);
+++		READ32(index);
+++		if ((index < 0) || (index >= working)) {
+++			BL_LOG_ERR("set_vol_array: Id %i out of range\n",
+++				   index);
+++			goto out_err;
+++		}
+++		array[i] = &vols[index];
+++	}
+++	*pp = p;
+++	return 0;
+++ out_err:
+++	return -EIO;
+++}
+++
+++static uint64_t sum_subvolume_sizes(struct bl_volume *vol)
+++{
+++	int i;
+++	uint64_t sum = 0;
+++	for (i = 0; i < vol->bv_vol_n; i++)
+++		sum += vol->bv_vols[i]->bv_size;
+++	return sum;
+++}
+++
+++static int decode_blk_volume(uint32_t **pp, uint32_t *end,
+++			     struct bl_volume *vols, int i, int *array_cnt)
+++{
+++	int status = 0, j;
+++	struct bl_sig sig;
+++	uint32_t *p = *pp;
+++	struct bl_volume *vol = &vols[i];
+++	uint64_t tmp, tmp_size;
+++	div_t d;
+++
+++	BLK_READBUF(p, end, 4);
+++	READ32(vol->bv_type);
+++	switch (vol->bv_type) {
+++	case BLOCK_VOLUME_SIMPLE:
+++		*array_cnt = 0;
+++		status = decode_blk_signature(&p, end, &sig);
+++		if (status)
+++			return status;
+++		status = map_sig_to_device(&sig, vol);
+++		if (!status) {
+++			BL_LOG_ERR("Could not find disk for device\n");
+++			return -ENXIO;
+++		}
+++		status = 0;
+++		break;
+++	case BLOCK_VOLUME_SLICE:
+++		BLK_READBUF(p, end, 16);
+++		READ_SECTOR(vol->param.bv_offset);
+++		READ_SECTOR(vol->bv_size);
+++		*array_cnt = vol->bv_vol_n = 1;
+++		status = set_vol_array(&p, end, vols, i);
+++		break;
+++	case BLOCK_VOLUME_STRIPE:
+++		BLK_READBUF(p, end, 8);
+++		READ_SECTOR(vol->param.bv_stripe_unit);
+++		off_t chunksize = vol->param.bv_stripe_unit;
+++		if ((chunksize == 0) ||
+++		    ((chunksize & (chunksize - 1)) != 0) ||
+++		    (chunksize < (PAGE_SIZE >> 9)))
+++			return -EIO;
+++		BLK_READBUF(p, end, 4);
+++		READ32(vol->bv_vol_n);
+++		if (!vol->bv_vol_n)
+++			return -EIO;
+++		*array_cnt = vol->bv_vol_n;
+++		status = set_vol_array(&p, end, vols, i);
+++		if (status)
+++			return status;
+++		for (j = 1; j < vol->bv_vol_n; j++) {
+++			if (vol->bv_vols[j]->bv_size !=
+++			    vol->bv_vols[0]->bv_size) {
+++				BL_LOG_ERR("varying subvol size\n");
+++				return -EIO;
+++			}
+++		}
+++		/* Make sure total size only includes addressable areas */
+++		tmp_size = vol->bv_vols[0]->bv_size;
+++		d = div(tmp_size, (uint32_t) vol->param.bv_stripe_unit);
+++		tmp_size = d.quot;
+++		vol->bv_size = tmp_size * vol->param.bv_stripe_unit;
+++		break;
+++	case BLOCK_VOLUME_CONCAT:
+++		BLK_READBUF(p, end, 4);
+++		READ32(vol->bv_vol_n);
+++		if (!vol->bv_vol_n)
+++			return -EIO;
+++		*array_cnt = vol->bv_vol_n;
+++		status = set_vol_array(&p, end, vols, i);
+++		if (status)
+++			return status;
+++		vol->bv_size = sum_subvolume_sizes(vol);
+++		break;
+++	default:
+++		BL_LOG_ERR("Unknown volume type %i\n", vol->bv_type);
+++ out_err:
+++		return -EIO;
+++	}
+++	*pp = p;
+++	return status;
+++}
+++
+++uint64_t process_deviceinfo(const char *dev_addr_buf,
+++			    unsigned int dev_addr_len,
+++			    uint32_t *major, uint32_t *minor)
+++{
+++	int num_vols, i, status, count;
+++	uint32_t *p, *end;
+++	struct bl_volume *vols = NULL, **arrays = NULL, **arrays_ptr = NULL;
+++	uint64_t dev = 0;
+++	int tried = 0;
+++
+++ restart:
+++	p = (uint32_t *) dev_addr_buf;
+++	end = (uint32_t *) ((char *)p + dev_addr_len);
+++	/* Decode block volume */
+++	BLK_READBUF(p, end, 4);
+++	READ32(num_vols);
+++	if (num_vols <= 0) {
+++		BL_LOG_WARNING("Error: number of vols: %d\n", num_vols);
+++		goto out_err;
+++	}
+++
+++	vols = (struct bl_volume *)malloc(num_vols * sizeof(struct bl_volume));
+++	if (!vols) {
+++		BL_LOG_ERR("%s: Out of memory\n", __func__);
+++		goto out_err;
+++	}
+++
+++	/* Each volume in vols array needs its own array.  Save time by
+++	 * allocating them all in one large hunk.  Because each volume
+++	 * array can only reference previous volumes, and because once
+++	 * a concat or stripe references a volume, it may never be
+++	 * referenced again, the volume arrays are guaranteed to fit
+++	 * in the suprisingly small space allocated.
+++	 */
+++	arrays =
+++	    (struct bl_volume **)malloc(num_vols * 2 *
+++					sizeof(struct bl_volume *));
+++	if (!arrays) {
+++		BL_LOG_ERR("%s: Out of memory\n", __func__);
+++		goto out_err;
+++	}
+++
+++	arrays_ptr = arrays;
+++
+++	for (i = 0; i < num_vols; i++) {
+++		vols[i].bv_vols = arrays_ptr;
+++		status = decode_blk_volume(&p, end, vols, i, &count);
+++		if (status == -ENXIO && (tried <= 5)) {
+++			sleep(1);
+++			BL_LOG_DEBUG("%s: discover again!\n", __func__);
+++			bl_discover_devices();
+++			tried++;
+++			free(vols);
+++			free(arrays);
+++			goto restart;
+++		}
+++		if (status)
+++			goto out_err;
+++		arrays_ptr += count;
+++	}
+++
+++	if (p != end) {
+++		BL_LOG_ERR("p is not equal to end!\n");
+++		goto out_err;
+++	}
+++
+++	dev = dm_device_create(vols, num_vols);
+++	*major = MAJOR(dev);
+++	*minor = MINOR(dev);
+++ out_err:
+++	if (vols)
+++		free(vols);
+++	if (arrays)
+++		free(arrays);
+++	return dev;
+++}
++diff -up nfs-utils-1.2.2/utils/blkmapd/dm-device.c.orig nfs-utils-1.2.2/utils/blkmapd/dm-device.c
++--- nfs-utils-1.2.2/utils/blkmapd/dm-device.c.orig	2010-09-10 07:09:34.171018605 -0400
+++++ nfs-utils-1.2.2/utils/blkmapd/dm-device.c	2010-09-10 07:09:34.171018605 -0400
++@@ -0,0 +1,509 @@
+++/*
+++ * dm-device.c: create or remove device via device mapper API.
+++ *
+++ * Copyright (c) 2010 EMC Corporation, Haiying Tang <Tang_Haiying at emc.com>
+++ * All rights reserved.
+++ *
+++ * Redistribution and use in source and binary forms, with or without
+++ * modification, are permitted provided that the following conditions
+++ * are met:
+++ * 1. Redistributions of source code must retain the above copyright
+++ *    notice, this list of conditions and the following disclaimer.
+++ * 2. Redistributions in binary form must reproduce the above copyright
+++ *    notice, this list of conditions and the following disclaimer in the
+++ *    documentation and/or other materials provided with the distribution.
+++ *
+++ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
+++ * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
+++ * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
+++ * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
+++ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
+++ * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+++ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+++ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+++ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
+++ * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+++ */
+++#include <libdevmapper.h>
+++#include <stdio.h>
+++#include <stdlib.h>
+++#include <string.h>
+++#include <sys/types.h>
+++#include <sys/stat.h>
+++#include <fcntl.h>
+++#include <errno.h>
+++#include <linux/kdev_t.h>
+++#include "device-discovery.h"
+++
+++#define DM_DEV_NAME_LEN		256
+++
+++#ifndef DM_MAX_TYPE_NAME
+++#define DM_MAX_TYPE_NAME	16
+++#endif
+++
+++#define DM_PARAMS_LEN		512	/* XXX: is this enough for target? */
+++#define DM_DIR			"/dev/mapper"
+++#define DM_DIR_LEN12
+++#define TYPE_HAS_DEV(type)	((type == BLOCK_VOLUME_SIMPLE) || \
+++			 (type == BLOCK_VOLUME_PSEUDO))
+++
+++struct bl_dm_table {
+++	uint64_t offset;
+++	uint64_t size;
+++	char target_type[DM_MAX_TYPE_NAME];
+++	char params[DM_PARAMS_LEN];
+++	struct bl_dm_table *next;
+++};
+++
+++struct bl_dm_tree {
+++	uint64_t dev;
+++	struct dm_tree *tree;
+++	struct bl_dm_tree *next;
+++};
+++
+++static inline struct bl_dm_table *bl_dm_table_alloc(void)
+++{
+++	return (struct bl_dm_table *)calloc(1, sizeof(struct bl_dm_table));
+++}
+++
+++void bl_dm_table_free(struct bl_dm_table *bl_table_head)
+++{
+++	struct bl_dm_table *p = bl_table_head;
+++	while (bl_table_head) {
+++		p = bl_table_head->next;
+++		free(bl_table_head);
+++		bl_table_head = p;
+++	}
+++}
+++
+++void add_to_bl_dm_table(struct bl_dm_table **bl_table_head,
+++			struct bl_dm_table *table)
+++{
+++	struct bl_dm_table *pre;
+++	if (!*bl_table_head) {
+++		*bl_table_head = table;
+++		return;
+++	}
+++	pre = *bl_table_head;
+++	while (pre->next)
+++		pre = pre->next;
+++	pre->next = table;
+++	return;
+++}
+++
+++struct bl_dm_tree *bl_tree_head;
+++
+++struct bl_dm_tree *find_bl_dm_tree(uint64_t dev)
+++{
+++	struct bl_dm_tree *p = bl_tree_head;
+++	while (p) {
+++		if (p->dev == dev)
+++			return p;
+++		p = p->next;
+++	}
+++	return NULL;
+++}
+++
+++void del_from_bl_dm_tree(uint64_t dev)
+++{
+++	struct bl_dm_tree *pre = bl_tree_head;
+++	struct bl_dm_tree *p;
+++
+++	p = pre;
+++	while (p) {
+++		if (p->dev == dev) {
+++			pre->next = p->next;
+++			if (p == bl_tree_head)
+++				bl_tree_head = bl_tree_head->next;
+++			free(p);
+++			break;
+++		}
+++		pre = p;
+++		p = pre->next;
+++	}
+++}
+++
+++void add_to_bl_dm_tree(struct bl_dm_tree *tree)
+++{
+++	struct bl_dm_tree *pre;
+++	if (!bl_tree_head) {
+++		bl_tree_head = tree;
+++		return;
+++	}
+++	pre = bl_tree_head;
+++	while (pre->next)
+++		pre = pre->next;
+++	pre->next = tree;
+++	return;
+++}
+++
+++/* Create device via device mapper
+++ * return 0 when creation failed
+++ * return dev no for created device
+++ */
+++uint64_t dm_single_device_create(const char *dev_name, struct bl_dm_table * p)
+++{
+++	struct dm_task *dmt;
+++	struct dm_info dminfo;
+++	int ret = 0;
+++
+++	dmt = dm_task_create(DM_DEVICE_CREATE);
+++	if (!dmt) {
+++		BL_LOG_ERR("Create dm_task for %s failed\n", dev_name);
+++		return 0;
+++	}
+++	ret = dm_task_set_name(dmt, dev_name);
+++	if (!ret)
+++		goto err_out;
+++
+++	while (p) {
+++		ret = dm_task_add_target(dmt, p->offset, p->size,
+++					 p->target_type, p->params);
+++		if (!ret)
+++			goto err_out;
+++		p = p->next;
+++	}
+++
+++	ret = dm_task_run(dmt) &&
+++	    dm_task_get_info(dmt, &dminfo) && dminfo.exists;
+++
+++	if (!ret)
+++		goto err_out;
+++
+++	dm_task_update_nodes();
+++
+++ err_out:
+++	dm_task_destroy(dmt);
+++
+++	if (!ret) {
+++		BL_LOG_ERR("Create device %s failed\n", dev_name);
+++		return 0;
+++	}
+++	return MKDEV(dminfo.major, dminfo.minor);
+++}
+++
+++int dm_device_remove_byname(const char *dev_name)
+++{
+++	struct dm_task *dmt;
+++	int ret = 0;
+++
+++	dmt = dm_task_create(DM_DEVICE_REMOVE);
+++	if (!dmt)
+++		return -ENODEV;
+++
+++	ret = dm_task_set_name(dmt, dev_name) && dm_task_run(dmt);
+++
+++	dm_task_update_nodes();
+++
+++	if (dmt)
+++		dm_task_destroy(dmt);
+++
+++	return ret;
+++}
+++
+++int dm_device_remove(uint64_t dev)
+++{
+++	struct dm_task *dmt;
+++	struct dm_names *dmnames;
+++	char *names = NULL;
+++	int ret = -1;
+++
+++	/* Look for dev_name via dev, if dev_name could be transferred here,
+++	   we could jump to DM_DEVICE_REMOVE directly */
+++	dmt = dm_task_create(DM_DEVICE_LIST);
+++	if (!dmt) {
+++		BL_LOG_ERR("dm_task creation failed\n");
+++		return -ENODEV;
+++	}
+++
+++	ret = dm_task_run(dmt);
+++	if (!ret) {
+++		BL_LOG_ERR("dm_task_run failed\n");
+++		goto error;
+++	}
+++
+++	dmnames = dm_task_get_names(dmt);
+++	if (!dmnames || !dmnames->dev) {
+++		BL_LOG_ERR("dm_task_get_names failed\n");
+++		goto error;
+++	}
+++
+++	do {
+++		if (dmnames->dev == dev) {
+++			names = dmnames->name;
+++			break;
+++		}
+++		dmnames = (void *)dmnames + dmnames->next;
+++	} while (dmnames);
+++
+++	if (!names) {
+++		BL_LOG_ERR("Could not find device\n");
+++		goto error;
+++	}
+++
+++	dm_task_update_nodes();
+++
+++ error:
+++	dm_task_destroy(dmt);
+++
+++	/* Start to remove device */
+++	if (names)
+++		ret = dm_device_remove_byname(names);
+++	return ret;
+++}
+++
+++static unsigned long dev_count;
+++
+++void dm_devicelist_remove(unsigned long start, unsigned long end)
+++{
+++	char dev_name[DM_DEV_NAME_LEN];
+++	unsigned long count;
+++
+++	if ((start >= dev_count) || (end <= 1) || (start >= end - 1))
+++		return;
+++
+++	for (count = end - 1; count > start; count--) {
+++		sprintf(dev_name, "pnfs_vol_%lu", count - 1);
+++		dm_device_remove_byname(dev_name);
+++	}
+++
+++	return;
+++}
+++
+++void bl_dm_remove_tree(uint64_t dev)
+++{
+++	struct bl_dm_tree *p;
+++
+++	p = find_bl_dm_tree(dev);
+++	if (!p)
+++		return;
+++
+++	dm_tree_free(p->tree);
+++	del_from_bl_dm_tree(dev);
+++}
+++
+++void bl_dm_create_tree(uint64_t dev)
+++{
+++	struct dm_tree *tree;
+++	struct bl_dm_tree *bl_tree;
+++
+++	bl_tree = find_bl_dm_tree(dev);
+++	if (bl_tree)
+++		return;		/* XXX: error? */
+++
+++	tree = dm_tree_create();
+++	if (!tree)
+++		return;
+++
+++	if (!dm_tree_add_dev(tree, MAJOR(dev), MINOR(dev))) {
+++		dm_tree_free(tree);
+++		return;
+++	}
+++
+++	bl_tree = malloc(sizeof(struct bl_dm_tree));
+++	if (!bl_tree) {
+++		dm_tree_free(tree);
+++		return;
+++	}
+++
+++	bl_tree->dev = dev;
+++	bl_tree->tree = tree;
+++	bl_tree->next = NULL;
+++	add_to_bl_dm_tree(bl_tree);
+++
+++	return;
+++}
+++
+++uint64_t dm_device_nametodev(char *dev_name)
+++{
+++	struct dm_task *dmt;
+++	int ret = 0;
+++	struct dm_info dminfo;
+++
+++	dmt = dm_task_create(DM_DEVICE_INFO);
+++	if (!dmt)
+++		return -ENODEV;
+++
+++	ret = dm_task_set_name(dmt, dev_name) &&
+++	    dm_task_run(dmt) && dm_task_get_info(dmt, &dminfo);
+++
+++	if (dmt)
+++		dm_task_destroy(dmt);
+++
+++	if (!ret)
+++		return 0;
+++
+++	return MKDEV(dminfo.major, dminfo.minor);
+++}
+++
+++int dm_device_remove_all(uint64_t *dev)
+++{
+++	struct bl_dm_tree *p;
+++	struct dm_tree_node *node;
+++	const char *uuid;
+++	int ret = 0;
+++	uint32_t major, minor;
+++	uint64_t bl_dev;
+++
+++	memcpy(&major, dev, sizeof(uint32_t));
+++	memcpy(&minor, (void *)dev + sizeof(uint32_t), sizeof(uint32_t));
+++	bl_dev = MKDEV(major, minor);
+++	p = find_bl_dm_tree(bl_dev);
+++	if (!p)
+++		return ret;
+++
+++	node = dm_tree_find_node(p->tree, MAJOR(bl_dev), MINOR(bl_dev));
+++	if (!node)
+++		return ret;
+++
+++	uuid = dm_tree_node_get_uuid(node);
+++	if (!uuid)
+++		return ret;
+++
+++	dm_device_remove(bl_dev);
+++	ret = dm_tree_deactivate_children(node, uuid, strlen(uuid));
+++	dm_task_update_nodes();
+++	bl_dm_remove_tree(bl_dev);
+++	return ret;
+++}
+++
+++/* TODO: check the value for DM_DEV_NAME_LEN, DM_TYPE_LEN, DM_PARAMS_LEN */
+++uint64_t dm_device_create(struct bl_volume *vols, int num_vols)
+++{
+++	uint64_t size, dev = 0;
+++	unsigned long count = dev_count;
+++	int number = 0, i, pos;
+++	struct bl_volume *node;
+++	char *tmp;
+++	struct bl_dm_table *table = NULL;
+++	struct bl_dm_table *bl_table_head = NULL;
+++	unsigned int len;
+++	char *dev_name = NULL;
+++	/* Create pseudo device here */
+++	while (number < num_vols) {
+++		node = &vols[number];
+++		switch (node->bv_type) {
+++		case BLOCK_VOLUME_SIMPLE:
+++			/* Do not need to create device here */
+++			dev = node->param.bv_dev;
+++			goto continued;
+++		case BLOCK_VOLUME_SLICE:
+++			table = bl_dm_table_alloc();
+++			if (!table)
+++				goto out;
+++			table->offset = 0;
+++			table->size = node->bv_size;
+++			strcpy(table->target_type, "linear");
+++			if (!TYPE_HAS_DEV(node->bv_vols[0]->bv_type)) {
+++				free(table);
+++				goto out;
+++			}
+++			dev = node->bv_vols[0]->param.bv_dev;
+++			tmp = table->params;
+++			if (!dm_format_dev(tmp, DM_PARAMS_LEN,
+++					   MAJOR(dev), MINOR(dev))) {
+++				free(table);
+++				goto out;
+++			}
+++			tmp += strlen(tmp);
+++			sprintf(tmp, " %lu", node->param.bv_offset);
+++			add_to_bl_dm_table(&bl_table_head, table);
+++			break;
+++		case BLOCK_VOLUME_STRIPE:
+++			table = bl_dm_table_alloc();
+++			if (!table)
+++				goto out;
+++			table->offset = 0;
+++			table->size = node->bv_size;
+++			strcpy(table->target_type, "striped");
+++			sprintf(table->params, "%d %lu %n", node->bv_vol_n,
+++				node->param.bv_stripe_unit, &pos);
+++			/* Repeatedly copy subdev to params */
+++			tmp = table->params + pos;
+++			len = DM_PARAMS_LEN - pos;
+++			for (i = 0; i < node->bv_vol_n; i++) {
+++				if (!TYPE_HAS_DEV(node->bv_vols[i]->bv_type)) {
+++					free(table);
+++					goto out;
+++				}
+++				dev = node->bv_vols[i]->param.bv_dev;
+++				if (!dm_format_dev(tmp, len, MAJOR(dev),
+++						   MINOR(dev))) {
+++					free(table);
+++					goto out;
+++				}
+++				pos = strlen(tmp);
+++				tmp += pos;
+++				len -= pos;
+++				sprintf(tmp, " %d ", 0);
+++				tmp += 3;
+++				len -= 3;
+++			}
+++			add_to_bl_dm_table(&bl_table_head, table);
+++			break;
+++		case BLOCK_VOLUME_CONCAT:
+++			size = 0;
+++			for (i = 0; i < node->bv_vol_n; i++) {
+++				table = bl_dm_table_alloc();
+++				if (!table)
+++					goto out;
+++				table->offset = size;
+++				table->size = node->bv_vols[i]->bv_size;
+++				if (!TYPE_HAS_DEV(node->bv_vols[i]->bv_type)) {
+++					free(table);
+++					goto out;
+++				}
+++				strcpy(table->target_type, "linear");
+++				tmp = table->params;
+++				dev = node->bv_vols[i]->param.bv_dev;
+++				if (!dm_format_dev(tmp, DM_PARAMS_LEN,
+++						   MAJOR(dev), MINOR(dev))) {
+++					free(table);
+++					goto out;
+++				}
+++				tmp += strlen(tmp);
+++				sprintf(tmp, " %d", 0);
+++				size += table->size;
+++				add_to_bl_dm_table(&bl_table_head, table);
+++			}
+++			break;
+++		default:
+++			/* Delete previous temporary devices */
+++			dm_devicelist_remove(count, dev_count);
+++			goto out;
+++		}		/* end of swtich */
+++		/* Create dev_name here. Name of device is pnfs_vol_XXX */
+++		if (dev_name)
+++			free(dev_name);
+++		dev_name = (char *)calloc(DM_DEV_NAME_LEN, sizeof(char));
+++		if (!dev_name) {
+++			BL_LOG_ERR("%s: Out of memory\n", __func__);
+++			goto out;
+++		}
+++		sprintf(dev_name, "pnfs_vol_%lu", dev_count++);
+++
+++		dev = dm_single_device_create(dev_name, bl_table_head);
+++		if (!dev) {
+++			/* Delete previous temporary devices */
+++			dm_devicelist_remove(count, dev_count);
+++			goto out;
+++		}
+++		node->param.bv_dev = dev;
+++		/* TODO: extend use with PSEUDO later */
+++		node->bv_type = BLOCK_VOLUME_PSEUDO;
+++ continued:
+++		number++;
+++		if (bl_table_head)
+++			bl_dm_table_free(bl_table_head);
+++		bl_table_head = NULL;
+++	}
+++ out:
+++	if (bl_table_head)
+++		bl_dm_table_free(bl_table_head);
+++	bl_table_head = NULL;
+++	if (dev)
+++		bl_dm_create_tree(dev);
+++	if (dev_name)
+++		free(dev_name);
+++	return dev;
+++}
++diff -up nfs-utils-1.2.2/utils/blkmapd/etc/blkmapd.conf.orig nfs-utils-1.2.2/utils/blkmapd/etc/blkmapd.conf
++--- nfs-utils-1.2.2/utils/blkmapd/etc/blkmapd.conf.orig	2010-09-10 07:09:34.171018605 -0400
+++++ nfs-utils-1.2.2/utils/blkmapd/etc/blkmapd.conf	2010-09-10 07:09:34.171018605 -0400
++@@ -0,0 +1,10 @@
+++# This is an example config file
+++
+++# Look at all /dev/sd* devices
+++# /dev/sd or /dev/sd*
+++/dev/sd*
+++
+++# Look at all /dev/mapper/* devices
+++# /dev/mapper/* or
+++# /dev/mapper/
+++/dev/mapper/*
++diff -up nfs-utils-1.2.2/utils/blkmapd/etc/initd/initd.redhat.orig nfs-utils-1.2.2/utils/blkmapd/etc/initd/initd.redhat
++--- nfs-utils-1.2.2/utils/blkmapd/etc/initd/initd.redhat.orig	2010-09-10 07:09:34.172018612 -0400
+++++ nfs-utils-1.2.2/utils/blkmapd/etc/initd/initd.redhat	2010-09-10 07:09:34.172018612 -0400
++@@ -0,0 +1,76 @@
+++#!/bin/sh
+++#
+++# description: Starts and stops the iSCSI initiator
+++#
+++# processname: blkmapd
+++# pidfile: /var/run/blkmapd.pid
+++# config:  /etc/blkmapd.conf
+++
+++# Source function library.
+++if [ -f /etc/init.d/functions ] ; then
+++	. /etc/init.d/functions
+++elif [ -f /etc/rc.d/init.d/functions ] ; then
+++	. /etc/rc.d/init.d/functions
+++else
+++	exit 0
+++fi
+++
+++PATH=/sbin:/bin:/usr/sbin:/usr/bin
+++
+++RETVAL=0
+++
+++start()
+++{
+++	echo -n $"Starting pNFS block-layout device discovery service: "
+++	modprobe -q blocklayoutdriver
+++	daemon /usr/sbin/blkmapd
+++	RETVAL=$?
+++	if [ $RETVAL -eq 0 ]; then
+++		touch /var/lock/subsys/blkmapd
+++	fi
+++	echo
+++	return $RETVAL
+++}
+++
+++stop()
+++{
+++	echo -n $"Stopping pNFS block-layout device discovery service: "
+++	killproc blkmapd 2> /dev/null
+++	rm -f /var/run/blkmapd.pid
+++	RETVAL=$?
+++	[ $RETVAL -eq 0 ] && rm -f /var/lock/subsys/blkmapd
+++	if [ $RETVAL -eq 0 ]; then
+++                echo_success
+++        else
+++                echo_failure
+++        fi
+++	echo
+++	return $RETVAL
+++}
+++
+++restart()
+++{
+++	stop
+++	start
+++}
+++
+++case "$1" in
+++	start)
+++		start
+++		;;
+++	stop)
+++		stop
+++		;;
+++	restart)
+++		stop
+++		start
+++		;;
+++	status)
+++		status blkmapd
+++		;;
+++	*)
+++	echo $"Usage: $0 {start|stop|restart|status}"
+++	exit 1
+++esac
+++
+++exit $RETVAL
++diff -up nfs-utils-1.2.2/utils/blkmapd/Makefile.am.orig nfs-utils-1.2.2/utils/blkmapd/Makefile.am
++--- nfs-utils-1.2.2/utils/blkmapd/Makefile.am.orig	2010-09-10 07:09:34.164831472 -0400
+++++ nfs-utils-1.2.2/utils/blkmapd/Makefile.am	2010-09-10 07:09:34.164831472 -0400
++@@ -0,0 +1,62 @@
+++## Process this file with automake to produce Makefile.in
+++
+++#man8_MANS	= blkmapd.man
+++
+++AM_CFLAGS	+= -D_LARGEFILE64_SOURCE
+++KPREFIX		= @kprefix@
+++sbin_PROGRAMS	= blkmapd
+++
+++blkmapd_SOURCES = \
+++	atomicio.c \
+++	cfg.c \
+++	device-discovery.c \
+++	device-inq.c \
+++	device-process.c \
+++	dm-device.c \
+++	\
+++	cfg.h \
+++	device-discovery.h
+++
+++blkmapd_LDADD = -ldevmapper ../../support/nfs/libnfs.a
+++
+++MAINTAINERCLEANFILES = Makefile.in
+++
+++#######################################################################
+++# The following allows the current practice of having
+++# daemons renamed during the install to include RPCPREFIX
+++# and the KPREFIX
+++# This could all be done much easier with program_transform_name
+++# ( program_transform_name = s/^/$(RPCPREFIX)$(KPREFIX)/ )
+++# but that also renames the man pages, which the current
+++# practice does not do.
+++install-exec-hook:
+++	(cd $(DESTDIR)$(sbindir) && \
+++	  for p in $(sbin_PROGRAMS); do \
+++	    mv -f $$p$(EXEEXT) $(RPCPREFIX)$(KPREFIX)$$p$(EXEEXT) ;\
+++	  done)
+++uninstall-hook:
+++	(cd $(DESTDIR)$(sbindir) && \
+++	  for p in $(sbin_PROGRAMS); do \
+++	    rm -f $(RPCPREFIX)$(KPREFIX)$$p$(EXEEXT) ;\
+++	  done)
+++
+++
+++# XXX This makes some assumptions about what automake does.
+++# XXX But there is no install-man-hook or install-man-local.
+++install-man: install-man8 install-man-links
+++uninstall-man: uninstall-man8 uninstall-man-links
+++
+++install-man-links:
+++	(cd $(DESTDIR)$(man8dir) && \
+++	  for m in $(man8_MANS) $(dist_man8_MANS) $(nodist_man8_MANS); do \
+++	    inst=`echo $$m | sed -e 's/man$$/8/'`; \
+++	    rm -f $(RPCPREFIX)$$inst ; \
+++	    $(LN_S) $$inst $(RPCPREFIX)$$inst ; \
+++	  done)
+++
+++uninstall-man-links:
+++	(cd $(DESTDIR)$(man8dir) && \
+++	  for m in $(man8_MANS) $(dist_man8_MANS) $(nodist_man8_MANS); do \
+++	    inst=`echo $$m | sed -e 's/man$$/8/'`; \
+++	    rm -f $(RPCPREFIX)$$inst ; \
+++	  done)
++diff -up nfs-utils-1.2.2/utils/exportfs/exportfs.c.orig nfs-utils-1.2.2/utils/exportfs/exportfs.c
++--- nfs-utils-1.2.2/utils/exportfs/exportfs.c.orig	2010-09-09 19:46:28.669895181 -0400
+++++ nfs-utils-1.2.2/utils/exportfs/exportfs.c	2010-09-10 07:09:34.173028943 -0400
++@@ -596,6 +596,8 @@ dump(int verbose)
++ #endif
++ 			}
++ 			secinfo_show(stdout, ep);
+++			if (ep->e_pnfs)
+++				c = dumpopt(c, ",pnfs");
++ 			printf("%c\n", (c != '(')? ')' : ' ');
++ 		}
++ 	}
++diff -up nfs-utils-1.2.2/utils/Makefile.am.orig nfs-utils-1.2.2/utils/Makefile.am
++--- nfs-utils-1.2.2/utils/Makefile.am.orig	2010-02-18 07:35:00.000000000 -0500
+++++ nfs-utils-1.2.2/utils/Makefile.am	2010-09-10 07:09:34.163831429 -0400
++@@ -4,6 +4,8 @@ OPTDIRS =
++ 
++ if CONFIG_NFSV4
++ OPTDIRS += idmapd
+++OPTDIRS += spnfsd
+++OPTDIRS += blkmapd
++ endif
++ 
++ if CONFIG_GSS
++diff -up nfs-utils-1.2.2/utils/mountd/cache.c.orig nfs-utils-1.2.2/utils/mountd/cache.c
++--- nfs-utils-1.2.2/utils/mountd/cache.c.orig	2010-09-09 19:46:28.679903622 -0400
+++++ nfs-utils-1.2.2/utils/mountd/cache.c	2010-09-10 07:09:34.173028943 -0400
++@@ -648,6 +648,8 @@ static int dump_to_cache(FILE *f, char *
++ 		qword_printint(f, exp->e_anonuid);
++ 		qword_printint(f, exp->e_anongid);
++ 		qword_printint(f, exp->e_fsid);
+++		if (exp->e_pnfs == 1)
+++			qword_print(f, "pnfs");
++ 		write_fsloc(f, exp);
++ 		write_secinfo(f, exp, flag_mask);
++  		if (exp->e_uuid == NULL || different_fs) {
++diff -up nfs-utils-1.2.2/utils/nfsstat/nfsstat.c.orig nfs-utils-1.2.2/utils/nfsstat/nfsstat.c
++--- nfs-utils-1.2.2/utils/nfsstat/nfsstat.c.orig	2010-09-09 19:46:28.688904151 -0400
+++++ nfs-utils-1.2.2/utils/nfsstat/nfsstat.c	2010-09-10 07:09:34.174029028 -0400
++@@ -31,7 +31,7 @@ enum {
++ 	SRVPROC3_SZ = 22,
++ 	CLTPROC3_SZ = 22,
++ 	SRVPROC4_SZ = 2,
++-	CLTPROC4_SZ = 48,
+++	CLTPROC4_SZ = 49,
++ 	SRVPROC4OPS_SZ = 59,
++ };
++ 
++@@ -118,6 +118,7 @@ static const char *	nfscltproc4name[CLTP
++ 	"remove",    "rename",    "link",    "symlink",     "create",      "pathconf",
++ 	"statfs",    "readlink",  "readdir", "server_caps", "delegreturn", "getacl",
++ 	"setacl",    "fs_locations",
+++	"rel_lkowner",
++ 	/* nfsv4.1 client ops */
++ 	"exchange_id",
++ 	"create_ses",
++diff -up nfs-utils-1.2.2/utils/spnfsd/atomicio.c.orig nfs-utils-1.2.2/utils/spnfsd/atomicio.c
++--- nfs-utils-1.2.2/utils/spnfsd/atomicio.c.orig	2010-09-10 07:09:34.175029298 -0400
+++++ nfs-utils-1.2.2/utils/spnfsd/atomicio.c	2010-09-10 07:09:34.176028711 -0400
++@@ -0,0 +1,63 @@
+++/*
+++ * Copyright (c) 2002 Marius Aamodt Eriksen <marius at monkey.org>
+++ * Copyright (c) 1995,1999 Theo de Raadt.  All rights reserved.
+++ * All rights reserved.
+++ *
+++ * Redistribution and use in source and binary forms, with or without
+++ * modification, are permitted provided that the following conditions
+++ * are met:
+++ * 1. Redistributions of source code must retain the above copyright
+++ *    notice, this list of conditions and the following disclaimer.
+++ * 2. Redistributions in binary form must reproduce the above copyright
+++ *    notice, this list of conditions and the following disclaimer in the
+++ *    documentation and/or other materials provided with the distribution.
+++ *
+++ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
+++ * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
+++ * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
+++ * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
+++ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
+++ * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+++ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+++ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+++ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
+++ * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+++ */
+++
+++#include <sys/types.h>
+++#include <unistd.h>
+++#include <errno.h>
+++
+++#ifdef HAVE_CONFIG_H
+++#include "config.h"
+++#endif /* HAVE_CONFIG_H */
+++
+++/*
+++ * ensure all of data on socket comes through. f==read || f==write
+++ */
+++ssize_t
+++atomicio(f, fd, _s, n)
+++	ssize_t (*f) ();
+++	int fd;
+++	void *_s;
+++	size_t n;
+++{
+++	char *s = _s;
+++	ssize_t res, pos = 0;
+++
+++	while (n > pos) {
+++		res = (f) (fd, s + pos, n - pos);
+++		switch (res) {
+++		case -1:
+++			if (errno == EINTR || errno == EAGAIN)
+++				continue;
+++		case 0:
+++			if (pos != 0)
+++				return (pos);
+++			return (res);
+++		default:
+++			pos += res;
+++		}
+++	}
+++	return (pos);
+++}
++diff -up nfs-utils-1.2.2/utils/spnfsd/cfg.c.orig nfs-utils-1.2.2/utils/spnfsd/cfg.c
++--- nfs-utils-1.2.2/utils/spnfsd/cfg.c.orig	2010-09-10 07:09:34.176028711 -0400
+++++ nfs-utils-1.2.2/utils/spnfsd/cfg.c	2010-09-10 07:09:34.177018669 -0400
++@@ -0,0 +1,893 @@
+++/*	$OpenBSD: conf.c,v 1.55 2003/06/03 14:28:16 ho Exp $	*/
+++/*	$EOM: conf.c,v 1.48 2000/12/04 02:04:29 angelos Exp $	*/
+++
+++/*
+++ * Copyright (c) 1998, 1999, 2000, 2001 Niklas Hallqvist.  All rights reserved.
+++ * Copyright (c) 2000, 2001, 2002 Håkan Olsson.  All rights reserved.
+++ *
+++ * Redistribution and use in source and binary forms, with or without
+++ * modification, are permitted provided that the following conditions
+++ * are met:
+++ * 1. Redistributions of source code must retain the above copyright
+++ *    notice, this list of conditions and the following disclaimer.
+++ * 2. Redistributions in binary form must reproduce the above copyright
+++ *    notice, this list of conditions and the following disclaimer in the
+++ *    documentation and/or other materials provided with the distribution.
+++ *
+++ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
+++ * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
+++ * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
+++ * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
+++ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
+++ * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+++ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+++ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+++ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
+++ * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+++ */
+++
+++/*
+++ * This code was written under funding by Ericsson Radio Systems.
+++ */
+++
+++#include <sys/param.h>
+++#include <sys/mman.h>
+++#include <sys/socket.h>
+++#include <sys/stat.h>
+++#include <netinet/in.h>
+++#include <arpa/inet.h>
+++#include <ctype.h>
+++#include <fcntl.h>
+++#include <stdio.h>
+++#include <stdlib.h>
+++#include <string.h>
+++#include <unistd.h>
+++#include <errno.h>
+++#include <err.h>
+++
+++#include "cfg.h"
+++
+++static void conf_load_defaults (int);
+++#if 0
+++static int conf_find_trans_xf (int, char *);
+++#endif
+++
+++size_t  strlcpy(char *, const char *, size_t);
+++
+++struct conf_trans {
+++  TAILQ_ENTRY (conf_trans) link;
+++  int trans;
+++  enum conf_op { CONF_SET, CONF_REMOVE, CONF_REMOVE_SECTION } op;
+++  char *section;
+++  char *tag;
+++  char *value;
+++  int override;
+++  int is_default;
+++};
+++
+++TAILQ_HEAD (conf_trans_head, conf_trans) conf_trans_queue;
+++
+++/*
+++ * Radix-64 Encoding.
+++ */
+++const u_int8_t bin2asc[]
+++  = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/";
+++
+++const u_int8_t asc2bin[] =
+++{
+++  255, 255, 255, 255, 255, 255, 255, 255,
+++  255, 255, 255, 255, 255, 255, 255, 255,
+++  255, 255, 255, 255, 255, 255, 255, 255,
+++  255, 255, 255, 255, 255, 255, 255, 255,
+++  255, 255, 255, 255, 255, 255, 255, 255,
+++  255, 255, 255,  62, 255, 255, 255,  63,
+++   52,  53,  54,  55,  56,  57,  58,  59,
+++   60,  61, 255, 255, 255, 255, 255, 255,
+++  255,   0,   1,   2,   3,   4,   5,   6,
+++    7,   8,   9,  10,  11,  12,  13,  14,
+++   15,  16,  17,  18,  19,  20,  21,  22,
+++   23,  24,  25, 255, 255, 255, 255, 255,
+++  255,  26,  27,  28,  29,  30,  31,  32,
+++   33,  34,  35,  36,  37,  38,  39,  40,
+++   41,  42,  43,  44,  45,  46,  47,  48,
+++   49,  50,  51, 255, 255, 255, 255, 255
+++};
+++
+++struct conf_binding {
+++  LIST_ENTRY (conf_binding) link;
+++  char *section;
+++  char *tag;
+++  char *value;
+++  int is_default;
+++};
+++
+++char *conf_path;
+++LIST_HEAD (conf_bindings, conf_binding) conf_bindings[256];
+++
+++static char *conf_addr;
+++
+++static __inline__ u_int8_t
+++conf_hash (char *s)
+++{
+++  u_int8_t hash = 0;
+++
+++  while (*s)
+++    {
+++      hash = ((hash << 1) | (hash >> 7)) ^ tolower (*s);
+++      s++;
+++    }
+++  return hash;
+++}
+++
+++/*
+++ * Insert a tag-value combination from LINE (the equal sign is at POS)
+++ */
+++static int
+++conf_remove_now (char *section, char *tag)
+++{
+++  struct conf_binding *cb, *next;
+++
+++  for (cb = LIST_FIRST (&conf_bindings[conf_hash (section)]); cb; cb = next)
+++    {
+++      next = LIST_NEXT (cb, link);
+++      if (strcasecmp (cb->section, section) == 0
+++	  && strcasecmp (cb->tag, tag) == 0)
+++	{
+++	  LIST_REMOVE (cb, link);
+++	  warnx("[%s]:%s->%s removed", section, tag, cb->value);
+++	  free (cb->section);
+++	  free (cb->tag);
+++	  free (cb->value);
+++	  free (cb);
+++	  return 0;
+++	}
+++    }
+++  return 1;
+++}
+++
+++static int
+++conf_remove_section_now (char *section)
+++{
+++  struct conf_binding *cb, *next;
+++  int unseen = 1;
+++
+++  for (cb = LIST_FIRST (&conf_bindings[conf_hash (section)]); cb; cb = next)
+++    {
+++      next = LIST_NEXT (cb, link);
+++      if (strcasecmp (cb->section, section) == 0)
+++	{
+++	  unseen = 0;
+++	  LIST_REMOVE (cb, link);
+++	  warnx("[%s]:%s->%s removed", section, cb->tag, cb->value);
+++	  free (cb->section);
+++	  free (cb->tag);
+++	  free (cb->value);
+++	  free (cb);
+++	}
+++    }
+++  return unseen;
+++}
+++
+++/*
+++ * Insert a tag-value combination from LINE (the equal sign is at POS)
+++ * into SECTION of our configuration database.
+++ */
+++static int
+++conf_set_now (char *section, char *tag, char *value, int override,
+++	      int is_default)
+++{
+++  struct conf_binding *node = 0;
+++
+++  if (override)
+++    conf_remove_now (section, tag);
+++  else if (conf_get_str (section, tag))
+++    {
+++      if (!is_default)
+++	warnx("conf_set: duplicate tag [%s]:%s, ignoring...\n", section, tag);
+++      return 1;
+++    }
+++
+++  node = calloc (1, sizeof *node);
+++  if (!node)
+++    {
+++      warnx("conf_set: calloc (1, %lu) failed", (unsigned long)sizeof *node);
+++      return 1;
+++    }
+++  node->section = strdup (section);
+++  node->tag = strdup (tag);
+++  node->value = strdup (value);
+++  node->is_default = is_default;
+++
+++  LIST_INSERT_HEAD (&conf_bindings[conf_hash (section)], node, link);
+++  return 0;
+++}
+++
+++/*
+++ * Parse the line LINE of SZ bytes.  Skip Comments, recognize section
+++ * headers and feed tag-value pairs into our configuration database.
+++ */
+++static void
+++conf_parse_line (int trans, char *line, size_t sz)
+++{
+++  char *val;
+++  size_t i;
+++  int j;
+++  static char *section = 0;
+++  static int ln = 0;
+++
+++  ln++;
+++
+++  /* Lines starting with '#' or ';' are comments.  */
+++  if (*line == '#' || *line == ';')
+++    return;
+++
+++  /* '[section]' parsing...  */
+++  if (*line == '[')
+++    {
+++      for (i = 1; i < sz; i++)
+++	if (line[i] == ']')
+++	  break;
+++      if (section)
+++	free (section);
+++      if (i == sz)
+++	{
+++	  warnx("conf_parse_line: %d:"
+++		     "non-matched ']', ignoring until next section", ln);
+++	  section = 0;
+++	  return;
+++	}
+++      section = malloc (i);
+++      if (!section)
+++	{
+++	  warnx("conf_parse_line: %d: malloc (%lu) failed", ln,
+++		(unsigned long)i);
+++	  return;
+++	}
+++      strlcpy (section, line + 1, i);
+++      return;
+++    }
+++
+++  /* Deal with assignments.  */
+++  for (i = 0; i < sz; i++)
+++    if (line[i] == '=')
+++      {
+++	/* If no section, we are ignoring the lines.  */
+++	if (!section)
+++	  {
+++	    warnx("conf_parse_line: %d: ignoring line due to no section", ln);
+++	    return;
+++	  }
+++	line[strcspn (line, " \t=")] = '\0';
+++	val = line + i + 1 + strspn (line + i + 1, " \t");
+++	/* Skip trailing whitespace, if any */
+++	for (j = sz - (val - line) - 1; j > 0 && isspace (val[j]); j--)
+++	  val[j] = '\0';
+++	/* XXX Perhaps should we not ignore errors?  */
+++	conf_set (trans, section, line, val, 0, 0);
+++	return;
+++      }
+++
+++  /* Other non-empty lines are weird.  */
+++  i = strspn (line, " \t");
+++  if (line[i])
+++    warnx("conf_parse_line: %d: syntax error", ln);
+++
+++  return;
+++}
+++
+++/* Parse the mapped configuration file.  */
+++static void
+++conf_parse (int trans, char *buf, size_t sz)
+++{
+++  char *cp = buf;
+++  char *bufend = buf + sz;
+++  char *line;
+++
+++  line = cp;
+++  while (cp < bufend)
+++    {
+++      if (*cp == '\n')
+++	{
+++	  /* Check for escaped newlines.  */
+++	  if (cp > buf && *(cp - 1) == '\\')
+++	    *(cp - 1) = *cp = ' ';
+++	  else
+++	    {
+++	      *cp = '\0';
+++	      conf_parse_line (trans, line, cp - line);
+++	      line = cp + 1;
+++	    }
+++	}
+++      cp++;
+++    }
+++  if (cp != line)
+++    warnx("conf_parse: last line non-terminated, ignored.");
+++}
+++
+++static void
+++conf_load_defaults (int tr)
+++{
+++	/* No defaults */
+++	return;
+++}
+++
+++void
+++conf_init (void)
+++{
+++  unsigned int i;
+++
+++  for (i = 0; i < sizeof conf_bindings / sizeof conf_bindings[0]; i++)
+++    LIST_INIT (&conf_bindings[i]);
+++  TAILQ_INIT (&conf_trans_queue);
+++  conf_reinit ();
+++}
+++
+++/* Open the config file and map it into our address space, then parse it.  */
+++void
+++conf_reinit (void)
+++{
+++  struct conf_binding *cb = 0;
+++  int fd, trans;
+++  unsigned int i;
+++  size_t sz;
+++  char *new_conf_addr = 0;
+++  struct stat sb;
+++
+++  if ((stat (conf_path, &sb) == 0) || (errno != ENOENT))
+++    {
+++      sz = sb.st_size;
+++      fd = open (conf_path, O_RDONLY, 0);
+++      if (fd == -1)
+++        {
+++	  warnx("conf_reinit: open (\"%s\", O_RDONLY) failed", conf_path);
+++	  return;
+++	}
+++
+++      new_conf_addr = malloc (sz);
+++      if (!new_conf_addr)
+++        {
+++	  warnx("conf_reinit: malloc (%lu) failed", (unsigned long)sz);
+++	  goto fail;
+++	}
+++
+++      /* XXX I assume short reads won't happen here.  */
+++      if (read (fd, new_conf_addr, sz) != (int)sz)
+++        {
+++	    warnx("conf_reinit: read (%d, %p, %lu) failed",
+++		       fd, new_conf_addr, (unsigned long)sz);
+++	    goto fail;
+++	}
+++      close (fd);
+++
+++      trans = conf_begin ();
+++
+++      /* XXX Should we not care about errors and rollback?  */
+++      conf_parse (trans, new_conf_addr, sz);
+++    }
+++  else
+++    trans = conf_begin ();
+++
+++  /* Load default configuration values.  */
+++  conf_load_defaults (trans);
+++
+++  /* Free potential existing configuration.  */
+++  if (conf_addr)
+++    {
+++      for (i = 0; i < sizeof conf_bindings / sizeof conf_bindings[0]; i++)
+++	for (cb = LIST_FIRST (&conf_bindings[i]); cb;
+++	     cb = LIST_FIRST (&conf_bindings[i]))
+++	  conf_remove_now (cb->section, cb->tag);
+++      free (conf_addr);
+++    }
+++
+++  conf_end (trans, 1);
+++  conf_addr = new_conf_addr;
+++  return;
+++
+++ fail:
+++  if (new_conf_addr)
+++    free (new_conf_addr);
+++  close (fd);
+++}
+++
+++/*
+++ * Return the numeric value denoted by TAG in section SECTION or DEF
+++ * if that tag does not exist.
+++ */
+++int
+++conf_get_num (char *section, char *tag, int def)
+++{
+++  char *value = conf_get_str (section, tag);
+++
+++  if (value)
+++      return atoi (value);
+++  return def;
+++}
+++
+++/* Validate X according to the range denoted by TAG in section SECTION.  */
+++int
+++conf_match_num (char *section, char *tag, int x)
+++{
+++  char *value = conf_get_str (section, tag);
+++  int val, min, max, n;
+++
+++  if (!value)
+++    return 0;
+++  n = sscanf (value, "%d,%d:%d", &val, &min, &max);
+++  switch (n)
+++    {
+++    case 1:
+++      warnx("conf_match_num: %s:%s %d==%d?", section, tag, val, x);
+++      return x == val;
+++    case 3:
+++      warnx("conf_match_num: %s:%s %d<=%d<=%d?", section, tag, min, x, max);
+++      return min <= x && max >= x;
+++    default:
+++      warnx("conf_match_num: section %s tag %s: invalid number spec %s",
+++		 section, tag, value);
+++    }
+++  return 0;
+++}
+++
+++/* Return the string value denoted by TAG in section SECTION.  */
+++char *
+++conf_get_str (char *section, char *tag)
+++{
+++  struct conf_binding *cb;
+++
+++  for (cb = LIST_FIRST (&conf_bindings[conf_hash (section)]); cb;
+++       cb = LIST_NEXT (cb, link))
+++    if (strcasecmp (section, cb->section) == 0
+++	&& strcasecmp (tag, cb->tag) == 0)
+++      {
+++	return cb->value;
+++      }
+++  return 0;
+++}
+++
+++/*
+++ * Build a list of string values out of the comma separated value denoted by
+++ * TAG in SECTION.
+++ */
+++struct conf_list *
+++conf_get_list (char *section, char *tag)
+++{
+++  char *liststr = 0, *p, *field, *t;
+++  struct conf_list *list = 0;
+++  struct conf_list_node *node;
+++
+++  list = malloc (sizeof *list);
+++  if (!list)
+++    goto cleanup;
+++  TAILQ_INIT (&list->fields);
+++  list->cnt = 0;
+++  liststr = conf_get_str (section, tag);
+++  if (!liststr)
+++    goto cleanup;
+++  liststr = strdup (liststr);
+++  if (!liststr)
+++    goto cleanup;
+++  p = liststr;
+++  while ((field = strsep (&p, ",")) != NULL)
+++    {
+++      /* Skip leading whitespace */
+++      while (isspace (*field))
+++	field++;
+++      /* Skip trailing whitespace */
+++      if (p)
+++	for (t = p - 1; t > field && isspace (*t); t--)
+++	  *t = '\0';
+++      if (*field == '\0')
+++	{
+++	  warnx("conf_get_list: empty field, ignoring...");
+++	  continue;
+++	}
+++      list->cnt++;
+++      node = calloc (1, sizeof *node);
+++      if (!node)
+++	goto cleanup;
+++      node->field = strdup (field);
+++      if (!node->field) {
+++	free(node);
+++	goto cleanup;
+++      }
+++      TAILQ_INSERT_TAIL (&list->fields, node, link);
+++    }
+++  free (liststr);
+++  return list;
+++
+++ cleanup:
+++  if (list)
+++    conf_free_list (list);
+++  if (liststr)
+++    free (liststr);
+++  return 0;
+++}
+++
+++struct conf_list *
+++conf_get_tag_list (char *section)
+++{
+++  struct conf_list *list = 0;
+++  struct conf_list_node *node;
+++  struct conf_binding *cb;
+++
+++  list = malloc (sizeof *list);
+++  if (!list)
+++    goto cleanup;
+++  TAILQ_INIT (&list->fields);
+++  list->cnt = 0;
+++  for (cb = LIST_FIRST (&conf_bindings[conf_hash (section)]); cb;
+++       cb = LIST_NEXT (cb, link))
+++    if (strcasecmp (section, cb->section) == 0)
+++      {
+++	list->cnt++;
+++	node = calloc (1, sizeof *node);
+++	if (!node)
+++	  goto cleanup;
+++	node->field = strdup (cb->tag);
+++	if (!node->field) {
+++	  free(node);
+++	  goto cleanup;
+++	}
+++	TAILQ_INSERT_TAIL (&list->fields, node, link);
+++      }
+++  return list;
+++
+++ cleanup:
+++  if (list)
+++    conf_free_list (list);
+++  return 0;
+++}
+++
+++/* Decode a PEM encoded buffer.  */
+++int
+++conf_decode_base64 (u_int8_t *out, u_int32_t *len, u_char *buf)
+++{
+++  u_int32_t c = 0;
+++  u_int8_t c1, c2, c3, c4;
+++
+++  while (*buf)
+++    {
+++      if (*buf > 127 || (c1 = asc2bin[*buf]) == 255)
+++	return 0;
+++      buf++;
+++
+++      if (*buf > 127 || (c2 = asc2bin[*buf]) == 255)
+++	return 0;
+++      buf++;
+++
+++      if (*buf == '=')
+++	{
+++	  c3 = c4 = 0;
+++	  c++;
+++
+++	  /* Check last four bit */
+++	  if (c2 & 0xF)
+++	    return 0;
+++
+++	  if (strcmp ((char *)buf, "==") == 0)
+++	    buf++;
+++	  else
+++	    return 0;
+++	}
+++      else if (*buf > 127 || (c3 = asc2bin[*buf]) == 255)
+++	return 0;
+++      else
+++	{
+++	  if (*++buf == '=')
+++	    {
+++	      c4 = 0;
+++	      c += 2;
+++
+++	      /* Check last two bit */
+++	      if (c3 & 3)
+++		return 0;
+++
+++	      if (strcmp ((char *)buf, "="))
+++		return 0;
+++
+++	    }
+++	  else if (*buf > 127 || (c4 = asc2bin[*buf]) == 255)
+++	      return 0;
+++	  else
+++	      c += 3;
+++	}
+++
+++      buf++;
+++      *out++ = (c1 << 2) | (c2 >> 4);
+++      *out++ = (c2 << 4) | (c3 >> 2);
+++      *out++ = (c3 << 6) | c4;
+++    }
+++
+++  *len = c;
+++  return 1;
+++
+++}
+++
+++void
+++conf_free_list (struct conf_list *list)
+++{
+++  struct conf_list_node *node = TAILQ_FIRST (&list->fields);
+++
+++  while (node)
+++    {
+++      TAILQ_REMOVE (&list->fields, node, link);
+++      if (node->field)
+++	free (node->field);
+++      free (node);
+++      node = TAILQ_FIRST (&list->fields);
+++    }
+++  free (list);
+++}
+++
+++int
+++conf_begin (void)
+++{
+++  static int seq = 0;
+++
+++  return ++seq;
+++}
+++
+++static struct conf_trans *
+++conf_trans_node (int transaction, enum conf_op op)
+++{
+++  struct conf_trans *node;
+++
+++  node = calloc (1, sizeof *node);
+++  if (!node)
+++    {
+++      warnx("conf_trans_node: calloc (1, %lu) failed",
+++	(unsigned long)sizeof *node);
+++      return 0;
+++    }
+++  node->trans = transaction;
+++  node->op = op;
+++  TAILQ_INSERT_TAIL (&conf_trans_queue, node, link);
+++  return node;
+++}
+++
+++/* Queue a set operation.  */
+++int
+++conf_set (int transaction, char *section, char *tag, char *value, int override,
+++	  int is_default)
+++{
+++  struct conf_trans *node;
+++
+++  node = conf_trans_node (transaction, CONF_SET);
+++  if (!node)
+++    return 1;
+++  node->section = strdup (section);
+++  if (!node->section)
+++    {
+++      warnx("conf_set: strdup (\"%s\") failed", section);
+++      goto fail;
+++    }
+++  node->tag = strdup (tag);
+++  if (!node->tag)
+++    {
+++      warnx("conf_set: strdup (\"%s\") failed", tag);
+++      goto fail;
+++    }
+++  node->value = strdup (value);
+++  if (!node->value)
+++    {
+++      warnx("conf_set: strdup (\"%s\") failed", value);
+++      goto fail;
+++    }
+++  node->override = override;
+++  node->is_default = is_default;
+++  return 0;
+++
+++ fail:
+++  if (node->tag)
+++    free (node->tag);
+++  if (node->section)
+++    free (node->section);
+++  if (node)
+++    free (node);
+++  return 1;
+++}
+++
+++/* Queue a remove operation.  */
+++int
+++conf_remove (int transaction, char *section, char *tag)
+++{
+++  struct conf_trans *node;
+++
+++  node = conf_trans_node (transaction, CONF_REMOVE);
+++  if (!node)
+++    goto fail;
+++  node->section = strdup (section);
+++  if (!node->section)
+++    {
+++      warnx("conf_remove: strdup (\"%s\") failed", section);
+++      goto fail;
+++    }
+++  node->tag = strdup (tag);
+++  if (!node->tag)
+++    {
+++      warnx("conf_remove: strdup (\"%s\") failed", tag);
+++      goto fail;
+++    }
+++  return 0;
+++
+++ fail:
+++  if (node && node->section)
+++    free (node->section);
+++  if (node)
+++    free (node);
+++  return 1;
+++}
+++
+++/* Queue a remove section operation.  */
+++int
+++conf_remove_section (int transaction, char *section)
+++{
+++  struct conf_trans *node;
+++
+++  node = conf_trans_node (transaction, CONF_REMOVE_SECTION);
+++  if (!node)
+++    goto fail;
+++  node->section = strdup (section);
+++  if (!node->section)
+++    {
+++      warnx("conf_remove_section: strdup (\"%s\") failed", section);
+++      goto fail;
+++    }
+++  return 0;
+++
+++ fail:
+++  if (node)
+++    free (node);
+++  return 1;
+++}
+++
+++/* Execute all queued operations for this transaction.  Cleanup.  */
+++int
+++conf_end (int transaction, int commit)
+++{
+++  struct conf_trans *node, *next;
+++
+++  for (node = TAILQ_FIRST (&conf_trans_queue); node; node = next)
+++    {
+++      next = TAILQ_NEXT (node, link);
+++      if (node->trans == transaction)
+++	{
+++	  if (commit)
+++	    switch (node->op)
+++	      {
+++	      case CONF_SET:
+++		conf_set_now (node->section, node->tag, node->value,
+++			      node->override, node->is_default);
+++		break;
+++	      case CONF_REMOVE:
+++		conf_remove_now (node->section, node->tag);
+++		break;
+++	      case CONF_REMOVE_SECTION:
+++		conf_remove_section_now (node->section);
+++		break;
+++	      default:
+++		warnx("conf_end: unknown operation: %d", node->op);
+++	      }
+++	  TAILQ_REMOVE (&conf_trans_queue, node, link);
+++	  if (node->section)
+++	    free (node->section);
+++	  if (node->tag)
+++	    free (node->tag);
+++	  if (node->value)
+++	    free (node->value);
+++	  free (node);
+++	}
+++    }
+++  return 0;
+++}
+++
+++/*
+++ * Dump running configuration upon SIGUSR1.
+++ * Configuration is "stored in reverse order", so reverse it again.
+++ */
+++struct dumper {
+++  char *s, *v;
+++  struct dumper *next;
+++};
+++
+++static void
+++conf_report_dump (struct dumper *node)
+++{
+++  /* Recursive, cleanup when we're done.  */
+++
+++  if (node->next)
+++    conf_report_dump (node->next);
+++
+++  if (node->v)
+++    warnx("%s=\t%s", node->s, node->v);
+++  else if (node->s)
+++    {
+++      warnx("%s", node->s);
+++      if (strlen (node->s) > 0)
+++	free (node->s);
+++    }
+++
+++  free (node);
+++}
+++
+++void
+++conf_report (void)
+++{
+++  struct conf_binding *cb, *last = 0;
+++  unsigned int i, len;
+++  char *current_section = (char *)0;
+++  struct dumper *dumper, *dnode;
+++
+++  dumper = dnode = (struct dumper *)calloc (1, sizeof *dumper);
+++  if (!dumper)
+++    goto mem_fail;
+++
+++  warnx("conf_report: dumping running configuration");
+++
+++  for (i = 0; i < sizeof conf_bindings / sizeof conf_bindings[0]; i++)
+++    for (cb = LIST_FIRST (&conf_bindings[i]); cb;
+++	 cb = LIST_NEXT (cb, link))
+++      {
+++	if (!cb->is_default)
+++	  {
+++	    /* Dump this entry.  */
+++	    if (!current_section || strcmp (cb->section, current_section))
+++	      {
+++		if (current_section)
+++		  {
+++		    len = strlen (current_section) + 3;
+++		    dnode->s = malloc (len);
+++		    if (!dnode->s)
+++		      goto mem_fail;
+++
+++		    snprintf (dnode->s, len, "[%s]", current_section);
+++		    dnode->next
+++		      = (struct dumper *)calloc (1, sizeof (struct dumper));
+++		    dnode = dnode->next;
+++		    if (!dnode)
+++		      goto mem_fail;
+++
+++		    dnode->s = "";
+++		    dnode->next
+++		      = (struct dumper *)calloc (1, sizeof (struct dumper));
+++		    dnode = dnode->next;
+++		    if (!dnode)
+++		      goto mem_fail;
+++		  }
+++		current_section = cb->section;
+++	      }
+++	    dnode->s = cb->tag;
+++	    dnode->v = cb->value;
+++	    dnode->next = (struct dumper *)calloc (1, sizeof (struct dumper));
+++	    dnode = dnode->next;
+++	    if (!dnode)
+++	      goto mem_fail;
+++	    last = cb;
+++	  }
+++      }
+++
+++  if (last)
+++    {
+++      len = strlen (last->section) + 3;
+++      dnode->s = malloc (len);
+++      if (!dnode->s)
+++	goto mem_fail;
+++      snprintf (dnode->s, len, "[%s]", last->section);
+++    }
+++
+++  conf_report_dump (dumper);
+++
+++  return;
+++
+++ mem_fail:
+++  warnx("conf_report: malloc/calloc failed");
+++  while ((dnode = dumper) != 0)
+++    {
+++      dumper = dumper->next;
+++      if (dnode->s)
+++	free (dnode->s);
+++      free (dnode);
+++    }
+++  return;
+++}
++diff -up nfs-utils-1.2.2/utils/spnfsd/cfg.h.orig nfs-utils-1.2.2/utils/spnfsd/cfg.h
++--- nfs-utils-1.2.2/utils/spnfsd/cfg.h.orig	2010-09-10 07:09:34.177018669 -0400
+++++ nfs-utils-1.2.2/utils/spnfsd/cfg.h	2010-09-10 07:09:34.177018669 -0400
++@@ -0,0 +1,67 @@
+++/* $OpenBSD: conf.h,v 1.30 2004/06/25 20:25:34 hshoexer Exp $	 */
+++/* $EOM: conf.h,v 1.13 2000/09/18 00:01:47 ho Exp $	 */
+++
+++/*
+++ * Copyright (c) 1998, 1999, 2001 Niklas Hallqvist.  All rights reserved.
+++ * Copyright (c) 2000, 2003 Håkan Olsson.  All rights reserved.
+++ *
+++ * Redistribution and use in source and binary forms, with or without
+++ * modification, are permitted provided that the following conditions
+++ * are met:
+++ * 1. Redistributions of source code must retain the above copyright
+++ *    notice, this list of conditions and the following disclaimer.
+++ * 2. Redistributions in binary form must reproduce the above copyright
+++ *    notice, this list of conditions and the following disclaimer in the
+++ *    documentation and/or other materials provided with the distribution.
+++ *
+++ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
+++ * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
+++ * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
+++ * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
+++ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
+++ * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+++ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+++ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+++ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
+++ * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+++ */
+++
+++/*
+++ * This code was written under funding by Ericsson Radio Systems.
+++ */
+++
+++#ifndef _CONF_H_
+++#define _CONF_H_
+++
+++#include "queue.h"
+++
+++struct conf_list_node {
+++	TAILQ_ENTRY(conf_list_node) link;
+++	char	*field;
+++};
+++
+++struct conf_list {
+++	size_t	cnt;
+++	TAILQ_HEAD(conf_list_fields_head, conf_list_node) fields;
+++};
+++
+++extern char    *conf_path;
+++
+++extern int      conf_begin(void);
+++extern int      conf_decode_base64(u_int8_t *, u_int32_t *, u_char *);
+++extern int      conf_end(int, int);
+++extern void     conf_free_list(struct conf_list *);
+++extern struct sockaddr *conf_get_address(char *, char *);
+++extern struct conf_list *conf_get_list(char *, char *);
+++extern struct conf_list *conf_get_tag_list(char *);
+++extern int      conf_get_num(char *, char *, int);
+++extern char    *conf_get_str(char *, char *);
+++extern void     conf_init(void);
+++extern int      conf_match_num(char *, char *, int);
+++extern void     conf_reinit(void);
+++extern int      conf_remove(int, char *, char *);
+++extern int      conf_remove_section(int, char *);
+++extern int      conf_set(int, char *, char *, char *, int, int);
+++extern void     conf_report(void);
+++
+++#endif				/* _CONF_H_ */
++diff -up nfs-utils-1.2.2/utils/spnfsd/Makefile.am.orig nfs-utils-1.2.2/utils/spnfsd/Makefile.am
++--- nfs-utils-1.2.2/utils/spnfsd/Makefile.am.orig	2010-09-10 07:09:34.175029298 -0400
+++++ nfs-utils-1.2.2/utils/spnfsd/Makefile.am	2010-09-10 07:09:34.175029298 -0400
++@@ -0,0 +1,30 @@
+++## Process this file with automake to produce Makefile.in
+++
+++man5_MANS	=
+++man8_MANS	=
+++
+++RPCPREFIX	=
+++KPREFIX		= @kprefix@
+++sbin_PROGRAMS	= spnfsd
+++
+++EXTRA_DIST = \
+++	$(man5_MANS) \
+++	$(man8_MANS) \
+++	spnfsd.conf
+++
+++spnfsd_SOURCES = \
+++	atomicio.c \
+++	spnfsd_ops.c \
+++	cfg.c \
+++	spnfsd.c \
+++	strlcat.c \
+++	strlcpy.c \
+++	\
+++	cfg.h \
+++	spnfsd.h \
+++	spnfsd_queue.h \
+++	queue.h
+++
+++spnfsd_LDADD = -levent ../../support/nfs/libnfs.a
+++
+++MAINTAINERCLEANFILES = Makefile.in
++diff -up nfs-utils-1.2.2/utils/spnfsd/makestatic.orig nfs-utils-1.2.2/utils/spnfsd/makestatic
++--- nfs-utils-1.2.2/utils/spnfsd/makestatic.orig	2010-09-10 07:09:34.178028821 -0400
+++++ nfs-utils-1.2.2/utils/spnfsd/makestatic	2010-09-10 07:09:34.178028821 -0400
++@@ -0,0 +1,23 @@
+++/******************************************************************************
+++
+++(c) 2007 Network Appliance, Inc.  All Rights Reserved.
+++
+++Network Appliance provides this source code under the GPL v2 License.
+++The GPL v2 license is available at
+++http://opensource.org/licenses/gpl-license.php.
+++
+++THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+++"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+++LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+++A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
+++CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+++EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+++PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
+++PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
+++LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
+++NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+++SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+++
+++******************************************************************************/
+++
+++gcc -static -Wall -pipe -g -O2 -o spnfsd atomicio.o spnfsd_ops.o cfg.o spnfsd.o strlcat.o strlcpy.o  /usr/lib/libevent.a ../../support/nfs/libnfs.a
++diff -up nfs-utils-1.2.2/utils/spnfsd/nfsd4_spnfs.h.orig nfs-utils-1.2.2/utils/spnfsd/nfsd4_spnfs.h
++--- nfs-utils-1.2.2/utils/spnfsd/nfsd4_spnfs.h.orig	2010-09-10 07:09:34.178028821 -0400
+++++ nfs-utils-1.2.2/utils/spnfsd/nfsd4_spnfs.h	2010-09-10 07:09:34.178028821 -0400
++@@ -0,0 +1,334 @@
+++/*
+++ * include/linux/nfsd4_spnfs.h
+++ *
+++ * spNFS - simple pNFS implementation with userspace daemon
+++ *
+++ */
+++
+++/******************************************************************************
+++
+++(c) 2007 Network Appliance, Inc.  All Rights Reserved.
+++
+++Network Appliance provides this source code under the GPL v2 License.
+++The GPL v2 license is available at
+++http://opensource.org/licenses/gpl-license.php.
+++
+++THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+++"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+++LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+++A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
+++CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+++EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+++PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
+++PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
+++LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
+++NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+++SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+++
+++******************************************************************************/
+++
+++#ifndef NFS_SPNFS_H
+++#define NFS_SPNFS_H
+++
+++
+++#ifdef __KERNEL__
+++#include "exportfs.h"
+++#include "sunrpc/svc.h"
+++#include "nfsd/nfsfh.h"
+++#else
+++#include <sys/types.h>
+++#endif /* __KERNEL__ */
+++
+++#define SPNFS_STATUS_INVALIDMSG		0x01
+++#define SPNFS_STATUS_AGAIN		0x02
+++#define SPNFS_STATUS_FAIL		0x04
+++#define SPNFS_STATUS_SUCCESS		0x08
+++
+++#define SPNFS_TYPE_LAYOUTGET		0x01
+++#define SPNFS_TYPE_LAYOUTCOMMIT		0x02
+++#define SPNFS_TYPE_LAYOUTRETURN		0x03
+++#define SPNFS_TYPE_GETDEVICEITER	0x04
+++#define SPNFS_TYPE_GETDEVICEINFO	0x05
+++#define SPNFS_TYPE_SETATTR		0x06
+++#define SPNFS_TYPE_OPEN			0x07
+++#define	SPNFS_TYPE_CLOSE		0x08
+++#define SPNFS_TYPE_CREATE		0x09
+++#define SPNFS_TYPE_REMOVE		0x0a
+++#define SPNFS_TYPE_COMMIT		0x0b
+++#define SPNFS_TYPE_READ			0x0c
+++#define SPNFS_TYPE_WRITE		0x0d
+++
+++#define	SPNFS_MAX_DEVICES		1
+++#define	SPNFS_MAX_DATA_SERVERS		16
+++#define SPNFS_MAX_IO			512
+++
+++/* layout */
+++struct spnfs_msg_layoutget_args {
+++	unsigned long inode;
+++	unsigned long generation;
+++};
+++
+++struct spnfs_filelayout_list {
+++	u_int32_t       fh_len;
+++	unsigned char   fh_val[128]; /* DMXXX fix this const */
+++};
+++
+++struct spnfs_msg_layoutget_res {
+++	int status;
+++	u_int64_t devid;
+++	u_int64_t stripe_size;
+++	u_int32_t stripe_type;
+++	u_int32_t stripe_count;
+++	struct spnfs_filelayout_list flist[SPNFS_MAX_DATA_SERVERS];
+++};
+++
+++/* layoutcommit */
+++struct spnfs_msg_layoutcommit_args {
+++	unsigned long inode;
+++	unsigned long generation;
+++	u_int64_t file_size;
+++};
+++
+++struct spnfs_msg_layoutcommit_res {
+++	int status;
+++};
+++
+++/* layoutreturn */
+++/* No op for the daemon */
+++/*
+++struct spnfs_msg_layoutreturn_args {
+++};
+++
+++struct spnfs_msg_layoutreturn_res {
+++};
+++*/
+++
+++/* getdeviceiter */
+++struct spnfs_msg_getdeviceiter_args {
+++	unsigned long inode;
+++	u_int64_t cookie;
+++	u_int64_t verf;
+++};
+++
+++struct spnfs_msg_getdeviceiter_res {
+++	int status;
+++	u_int64_t devid;
+++	u_int64_t cookie;
+++	u_int64_t verf;
+++	u_int32_t eof;
+++};
+++
+++/* getdeviceinfo */
+++struct spnfs_data_server {
+++	u_int32_t dsid;
+++	char netid[5];
+++	char addr[29];
+++};
+++
+++struct spnfs_device {
+++	u_int64_t devid;
+++	int dscount;
+++	struct spnfs_data_server dslist[SPNFS_MAX_DATA_SERVERS];
+++};
+++
+++struct spnfs_msg_getdeviceinfo_args {
+++	u_int64_t devid;
+++};
+++
+++struct spnfs_msg_getdeviceinfo_res {
+++	int status;
+++	struct spnfs_device devinfo;
+++};
+++
+++/* setattr */
+++struct spnfs_msg_setattr_args {
+++	unsigned long inode;
+++	unsigned long generation;
+++	int file_size;
+++};
+++
+++struct spnfs_msg_setattr_res {
+++	int status;
+++};
+++
+++/* open */
+++struct spnfs_msg_open_args {
+++	unsigned long inode;
+++	unsigned long generation;
+++	int create;
+++	int createmode;
+++	int truncate;
+++};
+++
+++struct spnfs_msg_open_res {
+++	int status;
+++};
+++
+++/* close */
+++/* No op for daemon */
+++struct spnfs_msg_close_args {
+++	int x;
+++};
+++
+++struct spnfs_msg_close_res {
+++	int y;
+++};
+++
+++/* create */
+++/*
+++struct spnfs_msg_create_args {
+++	int x;
+++};
+++
+++struct spnfs_msg_create_res {
+++	int y;
+++};
+++*/
+++
+++/* remove */
+++struct spnfs_msg_remove_args {
+++	unsigned long inode;
+++	unsigned long generation;
+++};
+++
+++struct spnfs_msg_remove_res {
+++	int status;
+++};
+++
+++/* commit */
+++/*
+++struct spnfs_msg_commit_args {
+++	int x;
+++};
+++
+++struct spnfs_msg_commit_res {
+++	int y;
+++};
+++*/
+++
+++/* read */
+++struct spnfs_msg_read_args {
+++	unsigned long inode;
+++	unsigned long generation;
+++	loff_t offset;
+++	unsigned long len;
+++};
+++
+++struct spnfs_msg_read_res {
+++	int status;
+++	char data[SPNFS_MAX_IO];
+++};
+++
+++/* write */
+++struct spnfs_msg_write_args {
+++	unsigned long inode;
+++	unsigned long generation;
+++	loff_t offset;
+++	unsigned long len;
+++	char data[SPNFS_MAX_IO];
+++};
+++
+++struct spnfs_msg_write_res {
+++	int status;
+++};
+++
+++/* bundle args and responses */
+++union spnfs_msg_args {
+++	struct spnfs_msg_layoutget_args		layoutget_args;
+++	struct spnfs_msg_layoutcommit_args	layoutcommit_args;
+++/*
+++	struct spnfs_msg_layoutreturn_args	layoutreturn_args;
+++*/
+++	struct spnfs_msg_getdeviceiter_args     getdeviceiter_args;
+++	struct spnfs_msg_getdeviceinfo_args     getdeviceinfo_args;
+++	struct spnfs_msg_setattr_args		setattr_args;
+++	struct spnfs_msg_open_args		open_args;
+++	struct spnfs_msg_close_args		close_args;
+++/*
+++	struct spnfs_msg_create_args		create_args;
+++*/
+++	struct spnfs_msg_remove_args		remove_args;
+++/*
+++	struct spnfs_msg_commit_args		commit_args;
+++*/
+++	struct spnfs_msg_read_args		read_args;
+++	struct spnfs_msg_write_args		write_args;
+++};
+++
+++union spnfs_msg_res {
+++	struct spnfs_msg_layoutget_res		layoutget_res;
+++	struct spnfs_msg_layoutcommit_res	layoutcommit_res;
+++/*
+++	struct spnfs_msg_layoutreturn_res	layoutreturn_res;
+++*/
+++	struct spnfs_msg_getdeviceiter_res      getdeviceiter_res;
+++	struct spnfs_msg_getdeviceinfo_res      getdeviceinfo_res;
+++	struct spnfs_msg_setattr_res		setattr_res;
+++	struct spnfs_msg_open_res		open_res;
+++	struct spnfs_msg_close_res		close_res;
+++/*
+++	struct spnfs_msg_create_res		create_res;
+++*/
+++	struct spnfs_msg_remove_res		remove_res;
+++/*
+++	struct spnfs_msg_commit_res		commit_res;
+++*/
+++	struct spnfs_msg_read_res		read_res;
+++	struct spnfs_msg_write_res		write_res;
+++};
+++
+++/* a spnfs message, args and response */
+++struct spnfs_msg {
+++	unsigned char		im_type;
+++	unsigned char		im_status;
+++	union spnfs_msg_args	im_args;
+++	union spnfs_msg_res	im_res;
+++};
+++
+++/* spnfs configuration info */
+++struct spnfs_config {
+++	unsigned char		dense_striping;
+++	int			stripe_size;
+++	int			num_ds;
+++	char			ds_dir[SPNFS_MAX_DATA_SERVERS][80];  /* XXX */
+++};
+++
+++#ifdef __KERNEL__
+++
+++/* pipe mgmt structure.  messages flow through here */
+++struct spnfs {
+++	char			spnfs_path[48];   /* path to pipe */
+++	struct dentry		*spnfs_dentry;    /* dentry for pipe */
+++	wait_queue_head_t	spnfs_wq;
+++	struct spnfs_msg	spnfs_im;         /* spnfs message */
+++	struct mutex		spnfs_lock;       /* Serializes upcalls */
+++	struct mutex		spnfs_plock;
+++};
+++
+++int spnfs_layout_type(void);
+++int spnfs_layoutget(struct inode *, struct pnfs_layoutget_arg *);
+++int spnfs_layoutcommit(void);
+++int spnfs_layoutreturn(struct inode *, void *);
+++int spnfs_getdeviceiter(struct super_block *, struct pnfs_deviter_arg *);
+++int spnfs_getdeviceinfo(struct super_block *, struct pnfs_devinfo_arg *);
+++int spnfs_setattr(void);
+++int spnfs_open(struct inode *, void *);
+++int spnfs_close(struct inode *);
+++int spnfs_get_state(struct inode *, void *, void *);
+++int spnfs_remove(unsigned long, unsigned long);
+++int spnfs_read(struct inode *, loff_t, unsigned long *, int, struct svc_rqst *);
+++int spnfs_write(struct inode *, loff_t, size_t, int, struct svc_rqst *);
+++int spnfs_getfh(int, struct nfs_fh *);
+++int spnfs_test_layoutrecall(char *);
+++int spnfs_layoutrecall(struct inode *, int);
+++
+++int nfsd_spnfs_new(void);
+++void nfsd_spnfs_delete(void);
+++int spnfs_upcall(struct spnfs *, struct spnfs_msg *, union spnfs_msg_res *);
+++int spnfs_enabled(void);
+++int nfs4_spnfs_propagate_open(struct super_block *, struct svc_fh *, void *);
+++int spnfs_init_proc(void);
+++
+++#endif /* __KERNEL__ */
+++
+++#endif /* NFS_SPNFS_H */
++diff -up nfs-utils-1.2.2/utils/spnfsd/queue.h.orig nfs-utils-1.2.2/utils/spnfsd/queue.h
++--- nfs-utils-1.2.2/utils/spnfsd/queue.h.orig	2010-09-10 07:09:34.179039373 -0400
+++++ nfs-utils-1.2.2/utils/spnfsd/queue.h	2010-09-10 07:09:34.179039373 -0400
++@@ -0,0 +1,499 @@
+++/*	$OpenBSD: queue.h,v 1.22 2001/06/23 04:39:35 angelos Exp $	*/
+++/*	$NetBSD: queue.h,v 1.11 1996/05/16 05:17:14 mycroft Exp $	*/
+++
+++/*
+++ * Copyright (c) 1991, 1993
+++ *	The Regents of the University of California.  All rights reserved.
+++ *
+++ * Redistribution and use in source and binary forms, with or without
+++ * modification, are permitted provided that the following conditions
+++ * are met:
+++ * 1. Redistributions of source code must retain the above copyright
+++ *    notice, this list of conditions and the following disclaimer.
+++ * 2. Redistributions in binary form must reproduce the above copyright
+++ *    notice, this list of conditions and the following disclaimer in the
+++ *    documentation and/or other materials provided with the distribution.
+++ * 3. Neither the name of the University nor the names of its contributors
+++ *    may be used to endorse or promote products derived from this software
+++ *    without specific prior written permission.
+++ *
+++ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+++ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+++ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+++ * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+++ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+++ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+++ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+++ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+++ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+++ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+++ * SUCH DAMAGE.
+++ *
+++ *	@(#)queue.h	8.5 (Berkeley) 8/20/94
+++ */
+++
+++#ifndef	_SYS_QUEUE_H_
+++#define	_SYS_QUEUE_H_
+++
+++/*
+++ * This file defines five types of data structures: singly-linked lists,
+++ * lists, simple queues, tail queues, and circular queues.
+++ *
+++ *
+++ * A singly-linked list is headed by a single forward pointer. The elements
+++ * are singly linked for minimum space and pointer manipulation overhead at
+++ * the expense of O(n) removal for arbitrary elements. New elements can be
+++ * added to the list after an existing element or at the head of the list.
+++ * Elements being removed from the head of the list should use the explicit
+++ * macro for this purpose for optimum efficiency. A singly-linked list may
+++ * only be traversed in the forward direction.  Singly-linked lists are ideal
+++ * for applications with large datasets and few or no removals or for
+++ * implementing a LIFO queue.
+++ *
+++ * A list is headed by a single forward pointer (or an array of forward
+++ * pointers for a hash table header). The elements are doubly linked
+++ * so that an arbitrary element can be removed without a need to
+++ * traverse the list. New elements can be added to the list before
+++ * or after an existing element or at the head of the list. A list
+++ * may only be traversed in the forward direction.
+++ *
+++ * A simple queue is headed by a pair of pointers, one the head of the
+++ * list and the other to the tail of the list. The elements are singly
+++ * linked to save space, so elements can only be removed from the
+++ * head of the list. New elements can be added to the list before or after
+++ * an existing element, at the head of the list, or at the end of the
+++ * list. A simple queue may only be traversed in the forward direction.
+++ *
+++ * A tail queue is headed by a pair of pointers, one to the head of the
+++ * list and the other to the tail of the list. The elements are doubly
+++ * linked so that an arbitrary element can be removed without a need to
+++ * traverse the list. New elements can be added to the list before or
+++ * after an existing element, at the head of the list, or at the end of
+++ * the list. A tail queue may be traversed in either direction.
+++ *
+++ * A circle queue is headed by a pair of pointers, one to the head of the
+++ * list and the other to the tail of the list. The elements are doubly
+++ * linked so that an arbitrary element can be removed without a need to
+++ * traverse the list. New elements can be added to the list before or after
+++ * an existing element, at the head of the list, or at the end of the list.
+++ * A circle queue may be traversed in either direction, but has a more
+++ * complex end of list detection.
+++ *
+++ * For details on the use of these macros, see the queue(3) manual page.
+++ */
+++
+++/*
+++ * Singly-linked List definitions.
+++ */
+++#define SLIST_HEAD(name, type)						\
+++struct name {								\
+++	struct type *slh_first;	/* first element */			\
+++}
+++
+++#define	SLIST_HEAD_INITIALIZER(head)					\
+++	{ NULL }
+++
+++#define SLIST_ENTRY(type)						\
+++struct {								\
+++	struct type *sle_next;	/* next element */			\
+++}
+++
+++/*
+++ * Singly-linked List access methods.
+++ */
+++#define	SLIST_FIRST(head)	((head)->slh_first)
+++#define	SLIST_END(head)		NULL
+++#define	SLIST_EMPTY(head)	(SLIST_FIRST(head) == SLIST_END(head))
+++#define	SLIST_NEXT(elm, field)	((elm)->field.sle_next)
+++
+++#define	SLIST_FOREACH(var, head, field)					\
+++	for((var) = SLIST_FIRST(head);					\
+++	    (var) != SLIST_END(head);					\
+++	    (var) = SLIST_NEXT(var, field))
+++
+++/*
+++ * Singly-linked List functions.
+++ */
+++#define	SLIST_INIT(head) {						\
+++	SLIST_FIRST(head) = SLIST_END(head);				\
+++}
+++
+++#define	SLIST_INSERT_AFTER(slistelm, elm, field) do {			\
+++	(elm)->field.sle_next = (slistelm)->field.sle_next;		\
+++	(slistelm)->field.sle_next = (elm);				\
+++} while (0)
+++
+++#define	SLIST_INSERT_HEAD(head, elm, field) do {			\
+++	(elm)->field.sle_next = (head)->slh_first;			\
+++	(head)->slh_first = (elm);					\
+++} while (0)
+++
+++#define	SLIST_REMOVE_HEAD(head, field) do {				\
+++	(head)->slh_first = (head)->slh_first->field.sle_next;		\
+++} while (0)
+++
+++#define SLIST_REMOVE(head, elm, type, field) do {			\
+++	if ((head)->slh_first == (elm)) {				\
+++		SLIST_REMOVE_HEAD((head), field);			\
+++	}								\
+++	else {								\
+++		struct type *curelm = (head)->slh_first;		\
+++		while( curelm->field.sle_next != (elm) )		\
+++			curelm = curelm->field.sle_next;		\
+++		curelm->field.sle_next =				\
+++		    curelm->field.sle_next->field.sle_next;		\
+++	}								\
+++} while (0)
+++
+++/*
+++ * List definitions.
+++ */
+++#define LIST_HEAD(name, type)						\
+++struct name {								\
+++	struct type *lh_first;	/* first element */			\
+++}
+++
+++#define LIST_HEAD_INITIALIZER(head)					\
+++	{ NULL }
+++
+++#define LIST_ENTRY(type)						\
+++struct {								\
+++	struct type *le_next;	/* next element */			\
+++	struct type **le_prev;	/* address of previous next element */	\
+++}
+++
+++/*
+++ * List access methods
+++ */
+++#define	LIST_FIRST(head)		((head)->lh_first)
+++#define	LIST_END(head)			NULL
+++#define	LIST_EMPTY(head)		(LIST_FIRST(head) == LIST_END(head))
+++#define	LIST_NEXT(elm, field)		((elm)->field.le_next)
+++
+++#define LIST_FOREACH(var, head, field)					\
+++	for((var) = LIST_FIRST(head);					\
+++	    (var)!= LIST_END(head);					\
+++	    (var) = LIST_NEXT(var, field))
+++
+++/*
+++ * List functions.
+++ */
+++#define	LIST_INIT(head) do {						\
+++	LIST_FIRST(head) = LIST_END(head);				\
+++} while (0)
+++
+++#define LIST_INSERT_AFTER(listelm, elm, field) do {			\
+++	if (((elm)->field.le_next = (listelm)->field.le_next) != NULL)	\
+++		(listelm)->field.le_next->field.le_prev =		\
+++		    &(elm)->field.le_next;				\
+++	(listelm)->field.le_next = (elm);				\
+++	(elm)->field.le_prev = &(listelm)->field.le_next;		\
+++} while (0)
+++
+++#define	LIST_INSERT_BEFORE(listelm, elm, field) do {			\
+++	(elm)->field.le_prev = (listelm)->field.le_prev;		\
+++	(elm)->field.le_next = (listelm);				\
+++	*(listelm)->field.le_prev = (elm);				\
+++	(listelm)->field.le_prev = &(elm)->field.le_next;		\
+++} while (0)
+++
+++#define LIST_INSERT_HEAD(head, elm, field) do {				\
+++	if (((elm)->field.le_next = (head)->lh_first) != NULL)		\
+++		(head)->lh_first->field.le_prev = &(elm)->field.le_next;\
+++	(head)->lh_first = (elm);					\
+++	(elm)->field.le_prev = &(head)->lh_first;			\
+++} while (0)
+++
+++#define LIST_REMOVE(elm, field) do {					\
+++	if ((elm)->field.le_next != NULL)				\
+++		(elm)->field.le_next->field.le_prev =			\
+++		    (elm)->field.le_prev;				\
+++	*(elm)->field.le_prev = (elm)->field.le_next;			\
+++} while (0)
+++
+++#define LIST_REPLACE(elm, elm2, field) do {				\
+++	if (((elm2)->field.le_next = (elm)->field.le_next) != NULL)	\
+++		(elm2)->field.le_next->field.le_prev =			\
+++		    &(elm2)->field.le_next;				\
+++	(elm2)->field.le_prev = (elm)->field.le_prev;			\
+++	*(elm2)->field.le_prev = (elm2);				\
+++} while (0)
+++
+++/*
+++ * Simple queue definitions.
+++ */
+++#define SIMPLEQ_HEAD(name, type)					\
+++struct name {								\
+++	struct type *sqh_first;	/* first element */			\
+++	struct type **sqh_last;	/* addr of last next element */		\
+++}
+++
+++#define SIMPLEQ_HEAD_INITIALIZER(head)					\
+++	{ NULL, &(head).sqh_first }
+++
+++#define SIMPLEQ_ENTRY(type)						\
+++struct {								\
+++	struct type *sqe_next;	/* next element */			\
+++}
+++
+++/*
+++ * Simple queue access methods.
+++ */
+++#define	SIMPLEQ_FIRST(head)	    ((head)->sqh_first)
+++#define	SIMPLEQ_END(head)	    NULL
+++#define	SIMPLEQ_EMPTY(head)	    (SIMPLEQ_FIRST(head) == SIMPLEQ_END(head))
+++#define	SIMPLEQ_NEXT(elm, field)    ((elm)->field.sqe_next)
+++
+++#define SIMPLEQ_FOREACH(var, head, field)				\
+++	for((var) = SIMPLEQ_FIRST(head);				\
+++	    (var) != SIMPLEQ_END(head);					\
+++	    (var) = SIMPLEQ_NEXT(var, field))
+++
+++/*
+++ * Simple queue functions.
+++ */
+++#define	SIMPLEQ_INIT(head) do {						\
+++	(head)->sqh_first = NULL;					\
+++	(head)->sqh_last = &(head)->sqh_first;				\
+++} while (0)
+++
+++#define SIMPLEQ_INSERT_HEAD(head, elm, field) do {			\
+++	if (((elm)->field.sqe_next = (head)->sqh_first) == NULL)	\
+++		(head)->sqh_last = &(elm)->field.sqe_next;		\
+++	(head)->sqh_first = (elm);					\
+++} while (0)
+++
+++#define SIMPLEQ_INSERT_TAIL(head, elm, field) do {			\
+++	(elm)->field.sqe_next = NULL;					\
+++	*(head)->sqh_last = (elm);					\
+++	(head)->sqh_last = &(elm)->field.sqe_next;			\
+++} while (0)
+++
+++#define SIMPLEQ_INSERT_AFTER(head, listelm, elm, field) do {		\
+++	if (((elm)->field.sqe_next = (listelm)->field.sqe_next) == NULL)\
+++		(head)->sqh_last = &(elm)->field.sqe_next;		\
+++	(listelm)->field.sqe_next = (elm);				\
+++} while (0)
+++
+++#define SIMPLEQ_REMOVE_HEAD(head, elm, field) do {			\
+++	if (((head)->sqh_first = (elm)->field.sqe_next) == NULL)	\
+++		(head)->sqh_last = &(head)->sqh_first;			\
+++} while (0)
+++
+++/*
+++ * Tail queue definitions.
+++ */
+++#define TAILQ_HEAD(name, type)						\
+++struct name {								\
+++	struct type *tqh_first;	/* first element */			\
+++	struct type **tqh_last;	/* addr of last next element */		\
+++}
+++
+++#define TAILQ_HEAD_INITIALIZER(head)					\
+++	{ NULL, &(head).tqh_first }
+++
+++#define TAILQ_ENTRY(type)						\
+++struct {								\
+++	struct type *tqe_next;	/* next element */			\
+++	struct type **tqe_prev;	/* address of previous next element */	\
+++}
+++
+++/*
+++ * tail queue access methods
+++ */
+++#define	TAILQ_FIRST(head)		((head)->tqh_first)
+++#define	TAILQ_END(head)			NULL
+++#define	TAILQ_NEXT(elm, field)		((elm)->field.tqe_next)
+++#define TAILQ_LAST(head, headname)					\
+++	(*(((struct headname *)((head)->tqh_last))->tqh_last))
+++/* XXX */
+++#define TAILQ_PREV(elm, headname, field)				\
+++	(*(((struct headname *)((elm)->field.tqe_prev))->tqh_last))
+++#define	TAILQ_EMPTY(head)						\
+++	(TAILQ_FIRST(head) == TAILQ_END(head))
+++
+++#define TAILQ_FOREACH(var, head, field)					\
+++	for((var) = TAILQ_FIRST(head);					\
+++	    (var) != TAILQ_END(head);					\
+++	    (var) = TAILQ_NEXT(var, field))
+++
+++#define TAILQ_FOREACH_REVERSE(var, head, field, headname)		\
+++	for((var) = TAILQ_LAST(head, headname);				\
+++	    (var) != TAILQ_END(head);					\
+++	    (var) = TAILQ_PREV(var, headname, field))
+++
+++/*
+++ * Tail queue functions.
+++ */
+++#define	TAILQ_INIT(head) do {						\
+++	(head)->tqh_first = NULL;					\
+++	(head)->tqh_last = &(head)->tqh_first;				\
+++} while (0)
+++
+++#define TAILQ_INSERT_HEAD(head, elm, field) do {			\
+++	if (((elm)->field.tqe_next = (head)->tqh_first) != NULL)	\
+++		(head)->tqh_first->field.tqe_prev =			\
+++		    &(elm)->field.tqe_next;				\
+++	else								\
+++		(head)->tqh_last = &(elm)->field.tqe_next;		\
+++	(head)->tqh_first = (elm);					\
+++	(elm)->field.tqe_prev = &(head)->tqh_first;			\
+++} while (0)
+++
+++#define TAILQ_INSERT_TAIL(head, elm, field) do {			\
+++	(elm)->field.tqe_next = NULL;					\
+++	(elm)->field.tqe_prev = (head)->tqh_last;			\
+++	*(head)->tqh_last = (elm);					\
+++	(head)->tqh_last = &(elm)->field.tqe_next;			\
+++} while (0)
+++
+++#define TAILQ_INSERT_AFTER(head, listelm, elm, field) do {		\
+++	if (((elm)->field.tqe_next = (listelm)->field.tqe_next) != NULL)\
+++		(elm)->field.tqe_next->field.tqe_prev =			\
+++		    &(elm)->field.tqe_next;				\
+++	else								\
+++		(head)->tqh_last = &(elm)->field.tqe_next;		\
+++	(listelm)->field.tqe_next = (elm);				\
+++	(elm)->field.tqe_prev = &(listelm)->field.tqe_next;		\
+++} while (0)
+++
+++#define	TAILQ_INSERT_BEFORE(listelm, elm, field) do {			\
+++	(elm)->field.tqe_prev = (listelm)->field.tqe_prev;		\
+++	(elm)->field.tqe_next = (listelm);				\
+++	*(listelm)->field.tqe_prev = (elm);				\
+++	(listelm)->field.tqe_prev = &(elm)->field.tqe_next;		\
+++} while (0)
+++
+++#define TAILQ_REMOVE(head, elm, field) do {				\
+++	if (((elm)->field.tqe_next) != NULL)				\
+++		(elm)->field.tqe_next->field.tqe_prev =			\
+++		    (elm)->field.tqe_prev;				\
+++	else								\
+++		(head)->tqh_last = (elm)->field.tqe_prev;		\
+++	*(elm)->field.tqe_prev = (elm)->field.tqe_next;			\
+++} while (0)
+++
+++#define TAILQ_REPLACE(head, elm, elm2, field) do {			\
+++	if (((elm2)->field.tqe_next = (elm)->field.tqe_next) != NULL)	\
+++		(elm2)->field.tqe_next->field.tqe_prev =		\
+++		    &(elm2)->field.tqe_next;				\
+++	else								\
+++		(head)->tqh_last = &(elm2)->field.tqe_next;		\
+++	(elm2)->field.tqe_prev = (elm)->field.tqe_prev;			\
+++	*(elm2)->field.tqe_prev = (elm2);				\
+++} while (0)
+++
+++/*
+++ * Circular queue definitions.
+++ */
+++#define CIRCLEQ_HEAD(name, type)					\
+++struct name {								\
+++	struct type *cqh_first;		/* first element */		\
+++	struct type *cqh_last;		/* last element */		\
+++}
+++
+++#define CIRCLEQ_HEAD_INITIALIZER(head)					\
+++	{ CIRCLEQ_END(&head), CIRCLEQ_END(&head) }
+++
+++#define CIRCLEQ_ENTRY(type)						\
+++struct {								\
+++	struct type *cqe_next;		/* next element */		\
+++	struct type *cqe_prev;		/* previous element */		\
+++}
+++
+++/*
+++ * Circular queue access methods
+++ */
+++#define	CIRCLEQ_FIRST(head)		((head)->cqh_first)
+++#define	CIRCLEQ_LAST(head)		((head)->cqh_last)
+++#define	CIRCLEQ_END(head)		((void *)(head))
+++#define	CIRCLEQ_NEXT(elm, field)	((elm)->field.cqe_next)
+++#define	CIRCLEQ_PREV(elm, field)	((elm)->field.cqe_prev)
+++#define	CIRCLEQ_EMPTY(head)						\
+++	(CIRCLEQ_FIRST(head) == CIRCLEQ_END(head))
+++
+++#define CIRCLEQ_FOREACH(var, head, field)				\
+++	for((var) = CIRCLEQ_FIRST(head);				\
+++	    (var) != CIRCLEQ_END(head);					\
+++	    (var) = CIRCLEQ_NEXT(var, field))
+++
+++#define CIRCLEQ_FOREACH_REVERSE(var, head, field)			\
+++	for((var) = CIRCLEQ_LAST(head);					\
+++	    (var) != CIRCLEQ_END(head);					\
+++	    (var) = CIRCLEQ_PREV(var, field))
+++
+++/*
+++ * Circular queue functions.
+++ */
+++#define	CIRCLEQ_INIT(head) do {						\
+++	(head)->cqh_first = CIRCLEQ_END(head);				\
+++	(head)->cqh_last = CIRCLEQ_END(head);				\
+++} while (0)
+++
+++#define CIRCLEQ_INSERT_AFTER(head, listelm, elm, field) do {		\
+++	(elm)->field.cqe_next = (listelm)->field.cqe_next;		\
+++	(elm)->field.cqe_prev = (listelm);				\
+++	if ((listelm)->field.cqe_next == CIRCLEQ_END(head))		\
+++		(head)->cqh_last = (elm);				\
+++	else								\
+++		(listelm)->field.cqe_next->field.cqe_prev = (elm);	\
+++	(listelm)->field.cqe_next = (elm);				\
+++} while (0)
+++
+++#define CIRCLEQ_INSERT_BEFORE(head, listelm, elm, field) do {		\
+++	(elm)->field.cqe_next = (listelm);				\
+++	(elm)->field.cqe_prev = (listelm)->field.cqe_prev;		\
+++	if ((listelm)->field.cqe_prev == CIRCLEQ_END(head))		\
+++		(head)->cqh_first = (elm);				\
+++	else								\
+++		(listelm)->field.cqe_prev->field.cqe_next = (elm);	\
+++	(listelm)->field.cqe_prev = (elm);				\
+++} while (0)
+++
+++#define CIRCLEQ_INSERT_HEAD(head, elm, field) do {			\
+++	(elm)->field.cqe_next = (head)->cqh_first;			\
+++	(elm)->field.cqe_prev = CIRCLEQ_END(head);			\
+++	if ((head)->cqh_last == CIRCLEQ_END(head))			\
+++		(head)->cqh_last = (elm);				\
+++	else								\
+++		(head)->cqh_first->field.cqe_prev = (elm);		\
+++	(head)->cqh_first = (elm);					\
+++} while (0)
+++
+++#define CIRCLEQ_INSERT_TAIL(head, elm, field) do {			\
+++	(elm)->field.cqe_next = CIRCLEQ_END(head);			\
+++	(elm)->field.cqe_prev = (head)->cqh_last;			\
+++	if ((head)->cqh_first == CIRCLEQ_END(head))			\
+++		(head)->cqh_first = (elm);				\
+++	else								\
+++		(head)->cqh_last->field.cqe_next = (elm);		\
+++	(head)->cqh_last = (elm);					\
+++} while (0)
+++
+++#define	CIRCLEQ_REMOVE(head, elm, field) do {				\
+++	if ((elm)->field.cqe_next == CIRCLEQ_END(head))			\
+++		(head)->cqh_last = (elm)->field.cqe_prev;		\
+++	else								\
+++		(elm)->field.cqe_next->field.cqe_prev =			\
+++		    (elm)->field.cqe_prev;				\
+++	if ((elm)->field.cqe_prev == CIRCLEQ_END(head))			\
+++		(head)->cqh_first = (elm)->field.cqe_next;		\
+++	else								\
+++		(elm)->field.cqe_prev->field.cqe_next =			\
+++		    (elm)->field.cqe_next;				\
+++} while (0)
+++
+++#define CIRCLEQ_REPLACE(head, elm, elm2, field) do {			\
+++	if (((elm2)->field.cqe_next = (elm)->field.cqe_next) ==		\
+++	    CIRCLEQ_END(head))						\
+++		(head).cqh_last = (elm2);				\
+++	else								\
+++		(elm2)->field.cqe_next->field.cqe_prev = (elm2);	\
+++	if (((elm2)->field.cqe_prev = (elm)->field.cqe_prev) ==		\
+++	    CIRCLEQ_END(head))						\
+++		(head).cqh_first = (elm2);				\
+++	else								\
+++		(elm2)->field.cqe_prev->field.cqe_next = (elm2);	\
+++} while (0)
+++
+++#endif	/* !_SYS_QUEUE_H_ */
++diff -up nfs-utils-1.2.2/utils/spnfsd/spnfsd.conf.orig nfs-utils-1.2.2/utils/spnfsd/spnfsd.conf
++--- nfs-utils-1.2.2/utils/spnfsd/spnfsd.conf.orig	2010-09-10 07:09:34.181018798 -0400
+++++ nfs-utils-1.2.2/utils/spnfsd/spnfsd.conf	2010-09-10 07:09:34.181018798 -0400
++@@ -0,0 +1,21 @@
+++[General]
+++
+++Verbosity = 1
+++Stripe-size = 8192
+++Dense-striping = 0
+++Pipefs-Directory = /var/lib/nfs/rpc_pipefs
+++DS-Mount-Directory = /spnfs
+++
+++[DataServers]
+++
+++NumDS = 2
+++
+++DS1_IP = 172.16.28.134
+++DS1_PORT = 2049
+++DS1_ROOT = /pnfs
+++DS1_ID = 1
+++
+++DS2_IP = 172.16.28.141
+++DS2_PORT = 2049
+++DS2_ROOT = /pnfs
+++DS2_ID = 2
++diff -up nfs-utils-1.2.2/utils/spnfsd/spnfsd.c.orig nfs-utils-1.2.2/utils/spnfsd/spnfsd.c
++--- nfs-utils-1.2.2/utils/spnfsd/spnfsd.c.orig	2010-09-10 07:09:34.180018634 -0400
+++++ nfs-utils-1.2.2/utils/spnfsd/spnfsd.c	2010-09-10 07:09:34.180018634 -0400
++@@ -0,0 +1,578 @@
+++/*
+++ *  spnfsd.c
+++ *  Userland daemon for spNFS.
+++ *  Based heavily on idmapd.c
+++ *
+++ */
+++/*
+++ *  idmapd.c
+++ *
+++ *  Userland daemon for idmap.
+++ *
+++ *  Copyright (c) 2002 The Regents of the University of Michigan.
+++ *  All rights reserved.
+++ *
+++ *  Marius Aamodt Eriksen <marius at umich.edu>
+++ *
+++ *  Redistribution and use in source and binary forms, with or without
+++ *  modification, are permitted provided that the following conditions
+++ *  are met:
+++ *
+++ *  1. Redistributions of source code must retain the above copyright
+++ *     notice, this list of conditions and the following disclaimer.
+++ *  2. Redistributions in binary form must reproduce the above copyright
+++ *     notice, this list of conditions and the following disclaimer in the
+++ *     documentation and/or other materials provided with the distribution.
+++ *  3. Neither the name of the University nor the names of its
+++ *     contributors may be used to endorse or promote products derived
+++ *     from this software without specific prior written permission.
+++ *
+++ *  THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED
+++ *  WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
+++ *  MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+++ *  DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+++ *  FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+++ *  CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+++ *  SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
+++ *  BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
+++ *  LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
+++ *  NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+++ *  SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+++ */
+++
+++#define _LARGEFILE64_SOURCE
+++#define _FILE_OFFSET_BITS 64
+++#include <sys/types.h>
+++#include <sys/time.h>
+++#include <sys/poll.h>
+++#include <sys/socket.h>
+++#include <sys/stat.h>
+++#include <time.h>
+++
+++#include <err.h>
+++#include <errno.h>
+++#include <event.h>
+++#include <fcntl.h>
+++#include <dirent.h>
+++#include <unistd.h>
+++#include <netdb.h>
+++#include <signal.h>
+++#include <stdio.h>
+++#include <stdlib.h>
+++#include <string.h>
+++#include <stdarg.h>
+++#include <syslog.h>
+++#include <pwd.h>
+++#include <grp.h>
+++#include <limits.h>
+++#include <ctype.h>
+++
+++#ifdef HAVE_CONFIG_H
+++#include "config.h"
+++#endif /* HAVE_CONFIG_H */
+++
+++#include "cfg.h"
+++#include "queue.h"
+++#include "nfslib.h"
+++
+++#include "nfsd4_spnfs.h"
+++#include "spnfsd.h"
+++
+++#ifndef PIPEFS_DIR
+++#define PIPEFS_DIR  "/var/lib/nfs/rpc_pipefs/"
+++#endif
+++
+++#ifndef DSMOUNT_DIR
+++#define DSMOUNT_DIR "/spnfs"
+++#endif
+++
+++/* From Niels */
+++#define CONF_SAVE(w, f) do {                    \
+++	char *p = f;                            \
+++	if (p != NULL)                          \
+++		(w) = p;                        \
+++} while (0)
+++
+++struct spnfs_client {
+++	int		sc_fd;
+++	char		sc_path[PATH_MAX]; /* DM: full path to spnfs pipe */
+++	struct event	sc_event;
+++};
+++
+++static void spnfscb(int, short, void *);
+++static int do_mounts(void);
+++
+++static void spnfs_msg_handler(struct spnfs_client *, struct spnfs_msg *);
+++static void send_invalid_msg(int);
+++
+++size_t  strlcat(char *, const char *, size_t);
+++size_t  strlcpy(char *, const char *, size_t);
+++ssize_t atomicio(ssize_t (*)(), int, void *, size_t);
+++void    mydaemon(int, int);
+++void    release_parent();
+++static int read_config();
+++static void dump_config();
+++
+++int verbose = 0;
+++int stripesize = DEFAULT_STRIPE_SIZE;
+++int densestriping = 0;
+++int num_dev = 1;  /* XXX no multiple device support yet */
+++int num_ds;
+++struct dserver dataservers[SPNFS_MAX_DATA_SERVERS];
+++char dsmountdir[PATH_MAX];
+++struct spnfs_config spnfs_config;
+++
+++static int cache_entry_expiration = 0;
+++static char pipefsdir[PATH_MAX];
+++static char pipefspath[PATH_MAX];
+++
+++/* SPNFS */
+++struct spnfs_client sc;
+++
+++/* Used by cfg.c */
+++char *conf_path;
+++
+++static void
+++msg_format(char *rtnbuff, int rtnbuffsize, int errval,
+++	   const char *fmt, va_list args)
+++{
+++	char buff[1024];
+++	int n;
+++
+++	vsnprintf(buff, sizeof(buff), fmt, args);
+++
+++	if ((n = strlen(buff)) > 0 && buff[n-1] == '\n')
+++		buff[--n] = '\0';
+++
+++	snprintf(rtnbuff, rtnbuffsize, "%s: %s", buff, strerror(errval));
+++}
+++
+++void
+++spnfsd_warn(const char *fmt, ...)
+++{
+++	int errval = errno;	/* save this! */
+++	char buff[1024];
+++	va_list args;
+++
+++	va_start(args, fmt);
+++	msg_format(buff, sizeof(buff), errval, fmt, args);
+++	va_end(args);
+++
+++	syslog(LOG_WARNING, "%s", buff);
+++}
+++
+++void
+++spnfsd_warnx(const char *fmt, ...)
+++{
+++	va_list args;
+++
+++	va_start(args, fmt);
+++	vsyslog(LOG_WARNING, fmt, args);
+++	va_end(args);
+++}
+++
+++void
+++spnfsd_err(int eval, const char *fmt, ...)
+++{
+++	int errval = errno;	/* save this! */
+++	char buff[1024];
+++	va_list args;
+++
+++	va_start(args, fmt);
+++	msg_format(buff, sizeof(buff), errval, fmt, args);
+++	va_end(args);
+++
+++	syslog(LOG_ERR, "%s", buff);
+++	exit(eval);
+++}
+++
+++void
+++spnfsd_errx(int eval, const char *fmt, ...)
+++{
+++	va_list args;
+++
+++	va_start(args, fmt);
+++	vsyslog(LOG_ERR, fmt, args);
+++	va_end(args);
+++	exit(eval);
+++}
+++
+++int
+++main(int argc, char **argv)
+++{
+++	int opt, fg = 0;
+++	char *progname;
+++	struct stat sb;
+++	int rc, fd, cmd = 1;
+++	int i;
+++
+++	fd = open("/proc/fs/spnfs/ctl", O_WRONLY);
+++	if (fd < 0)
+++		spnfsd_errx(1, "kernel init failed (%s)", strerror(errno));
+++	rc = write(fd, &cmd, sizeof(int));
+++	if (rc < 0 && errno != EEXIST)
+++		spnfsd_errx(1, "kernel init failed (%s)", strerror(errno));
+++	close(fd);
+++
+++	conf_path = _PATH_SPNFSDCONF;
+++	strlcpy(pipefsdir, PIPEFS_DIR, sizeof(pipefsdir));
+++	strlcpy(dsmountdir, DSMOUNT_DIR, sizeof(dsmountdir));
+++	strlcpy(sc.sc_path, PIPEFS_DIR, sizeof(sc.sc_path));
+++
+++	if ((progname = strrchr(argv[0], '/')))
+++		progname++;
+++	else
+++		progname = argv[0];
+++
+++	openlog(progname, LOG_PID, LOG_DAEMON);
+++
+++#define GETOPTSTR "vfd:p:U:G:c:CS"
+++	opterr=0; /* Turn off error messages */
+++	while ((opt = getopt(argc, argv, GETOPTSTR)) != -1) {
+++		if (opt == 'c')
+++			conf_path = optarg;
+++		if (opt == '?') {
+++			if (strchr(GETOPTSTR, optopt))
+++				errx(1, "'-%c' option requires an argument.", optopt);
+++			else
+++				errx(1, "'-%c' is an invalid argument.", optopt);
+++		}
+++	}
+++	optind = 1;
+++
+++	if (stat(conf_path, &sb) == -1 &&(errno == ENOENT || errno == EACCES)) {
+++		warn("Skipping configuration file \"%s\"", conf_path);
+++		conf_path = NULL;
+++	} else {
+++		conf_init();
+++		if (read_config() != 0)
+++			spnfsd_err(1, "Invalid config file\n");
+++		if (verbose)
+++			dump_config();
+++	}
+++
+++	while ((opt = getopt(argc, argv, GETOPTSTR)) != -1)
+++		switch (opt) {
+++		case 'v':
+++			verbose++;
+++			break;
+++		case 'f':
+++			fg = 1;
+++			break;
+++		case 'p':
+++			strlcpy(pipefsdir, optarg, sizeof(pipefsdir));
+++			strlcpy(sc.sc_path, optarg, sizeof(sc.sc_path));
+++			break;
+++		default:
+++			break;
+++		}
+++
+++	strncat(pipefsdir, "/nfs", sizeof(pipefsdir));
+++	strncat(sc.sc_path, "/nfs/spnfs", sizeof(sc.sc_path));
+++	memcpy(pipefspath, sc.sc_path, sizeof(pipefspath));
+++
+++	spnfs_config.stripe_size = stripesize;
+++	spnfs_config.dense_striping = densestriping;
+++	spnfs_config.num_ds = num_ds;
+++
+++	for (i = 0; i < num_ds; i++)
+++		sprintf(spnfs_config.ds_dir[i], "%s/%s",
+++			dsmountdir, dataservers[i].ds_ip);
+++
+++	fd = open("/proc/fs/spnfs/config", O_WRONLY);
+++	if (fd < 0)
+++		spnfsd_errx(1, "error creating config (%s)", strerror(errno));
+++	rc = write(fd, &spnfs_config, sizeof(struct spnfs_config));
+++	if (rc < 0 && errno != EEXIST)
+++		spnfsd_errx(1, "error writing config (%s)", strerror(errno));
+++	close(fd);
+++
+++	signal(SIGHUP, send_invalid_msg);
+++
+++	if (do_mounts() != 0)
+++		spnfsd_err(1, "Mounting DSs failed\n");
+++
+++
+++/* DMXXX in case I forget -f while testing... */
+++fg = 1;
+++	if (!fg)
+++		mydaemon(0, 0);
+++
+++	event_init();
+++
+++	if (verbose > 0)
+++		spnfsd_warnx("Expiration time is %d seconds.",
+++			     cache_entry_expiration);
+++
+++	if ((sc.sc_fd = open(sc.sc_path, O_RDWR, 0)) == -1) {
+++		perror("spnfsd open file");
+++	} else {
+++		event_set(&sc.sc_event, sc.sc_fd, EV_READ, spnfscb, &sc);
+++		event_add(&sc.sc_event, NULL);
+++	}
+++
+++	release_parent();
+++
+++	if (event_dispatch() < 0)
+++		spnfsd_errx(1, "main: event_dispatch returns errno %d (%s)",
+++			    errno, strerror(errno));
+++	/* NOTREACHED */
+++	return 1;
+++}
+++
+++static void
+++spnfs_msg_handler(struct spnfs_client *scp, struct spnfs_msg *im)
+++{
+++	int err;
+++
+++	switch (im->im_type) {
+++	case SPNFS_TYPE_LAYOUTGET:
+++		err = spnfsd_layoutget(im);
+++		break;
+++	case SPNFS_TYPE_LAYOUTCOMMIT:
+++		err = spnfsd_layoutcommit(im);
+++		break;
+++	case SPNFS_TYPE_LAYOUTRETURN:
+++		err = spnfsd_layoutreturn(im);
+++		break;
+++	case SPNFS_TYPE_GETDEVICEITER:
+++		err = spnfsd_getdeviceiter(im);
+++		break;
+++	case SPNFS_TYPE_GETDEVICEINFO:
+++		err = spnfsd_getdeviceinfo(im);
+++		break;
+++	case SPNFS_TYPE_SETATTR:
+++		err = spnfsd_setattr(im);
+++		break;
+++	case SPNFS_TYPE_OPEN:
+++		err = spnfsd_open(im);
+++		break;
+++	case SPNFS_TYPE_CLOSE:
+++		err = spnfsd_close(im);
+++		break;
+++	case SPNFS_TYPE_CREATE:
+++		err = spnfsd_create(im);
+++		break;
+++	case SPNFS_TYPE_REMOVE:
+++		err = spnfsd_remove(im);
+++		break;
+++	case SPNFS_TYPE_COMMIT:
+++		err = spnfsd_commit(im);
+++		break;
+++	case SPNFS_TYPE_READ:
+++		err = spnfsd_read(im);
+++		break;
+++	case SPNFS_TYPE_WRITE:
+++		err = spnfsd_write(im);
+++		break;
+++	default:
+++		spnfsd_warnx("spnfs_msg_handler: Invalid msg type (%d) in message",
+++			     im->im_type);
+++		im->im_status |= SPNFS_STATUS_INVALIDMSG;
+++		err = -EINVAL;
+++		break;
+++	}
+++}
+++
+++static void
+++spnfscb(int fd, short which, void *data)
+++{
+++	struct spnfs_client *scp = data;
+++	struct spnfs_msg im;
+++	int rval;
+++
+++	if (which != EV_READ)
+++		goto out;
+++
+++	if (atomicio(read, scp->sc_fd, &im, sizeof(im)) != sizeof(im)) {
+++		if (verbose > 0)
+++			spnfsd_warn("spnfscb: read(%s)", scp->sc_path);
+++		if (errno == EPIPE)
+++			return;
+++		goto out;
+++	}
+++
+++	spnfs_msg_handler(scp, &im);
+++
+++	/* XXX: I don't like ignoring this error in the id->name case,
+++	 * but we've never returned it, and I need to check that the client
+++	 * can handle it gracefully before starting to return it now. */
+++
+++	if (im.im_status == SPNFS_STATUS_FAIL)
+++		im.im_status = SPNFS_STATUS_SUCCESS;
+++
+++	if ((rval=atomicio(write, scp->sc_fd, &im, sizeof(im))) != sizeof(im)) {
+++		spnfsd_warn("spnfscb: write(%s)", scp->sc_path);
+++	}
+++
+++out:
+++	event_add(&scp->sc_event, NULL);
+++}
+++
+++/*
+++ * mydaemon creates a pipe between the partent and child
+++ * process. The parent process will wait until the
+++ * child dies or writes a '1' on the pipe signaling
+++ * that it started successfully.
+++ */
+++int pipefds[2] = { -1, -1};
+++
+++void
+++mydaemon(int nochdir, int noclose)
+++{
+++	int pid, status, tempfd;
+++
+++	if (pipe(pipefds) < 0)
+++		err(1, "mydaemon: pipe() failed: errno %d", errno);
+++
+++	if ((pid = fork ()) < 0)
+++		err(1, "mydaemon: fork() failed: errno %d", errno);
+++
+++	if (pid != 0) {
+++		/*
+++		 * Parent. Wait for status from child.
+++		 */
+++		close(pipefds[1]);
+++		if (read(pipefds[0], &status, 1) != 1)
+++			exit(1);
+++		exit (0);
+++	}
+++	/* Child.	*/
+++	close(pipefds[0]);
+++	setsid ();
+++	if (nochdir == 0) {
+++		if (chdir ("/") == -1)
+++			err(1, "mydaemon: chdir() failed: errno %d", errno);
+++	}
+++
+++	while (pipefds[1] <= 2) {
+++		pipefds[1] = dup(pipefds[1]);
+++		if (pipefds[1] < 0)
+++			err(1, "mydaemon: dup() failed: errno %d", errno);
+++	}
+++
+++	if (noclose == 0) {
+++		tempfd = open("/dev/null", O_RDWR);
+++		if (tempfd < 0)
+++			tempfd = open("/", O_RDONLY);
+++		if (tempfd >= 0) {
+++			dup2(tempfd, 0);
+++			dup2(tempfd, 1);
+++			dup2(tempfd, 2);
+++			closeall(3);
+++		} else
+++			closeall(0);
+++	}
+++
+++	return;
+++}
+++
+++void
+++release_parent()
+++{
+++	int status;
+++
+++	if (pipefds[1] > 0) {
+++		write(pipefds[1], &status, 1);
+++		close(pipefds[1]);
+++		pipefds[1] = -1;
+++	}
+++}
+++
+++static int
+++read_config()
+++{
+++	char *xpipefsdir = NULL;
+++	char *xdsmountdir = NULL;
+++	int ds;
+++	char ipstr[20], portstr[20], rootstr[20], dsidstr[20];
+++
+++	verbose = conf_get_num("General", "Verbosity", 0);
+++	stripesize = conf_get_num("General", "Stripe-size",DEFAULT_STRIPE_SIZE);
+++	densestriping = conf_get_num("General", "Dense-striping", 0);
+++	CONF_SAVE(xpipefsdir, conf_get_str("General", "Pipefs-Directory"));
+++	if (xpipefsdir != NULL)
+++		strlcpy(pipefsdir, xpipefsdir, sizeof(pipefsdir));
+++	CONF_SAVE(xdsmountdir, conf_get_str("General", "DS-Mount-Directory"));
+++	if (xdsmountdir != NULL)
+++		strlcpy(dsmountdir, xdsmountdir, sizeof(dsmountdir));
+++	num_ds = conf_get_num("DataServers", "NumDS", 0);
+++	if (num_ds < 1 || num_ds > SPNFS_MAX_DATA_SERVERS)
+++		spnfsd_err(1, "Invalid number of data servers in config: %d\n",
+++			num_ds);
+++	for (ds = 1; ds <= num_ds ; ds++) {
+++		sprintf(ipstr, "DS%d_IP", ds);
+++		sprintf(portstr, "DS%d_PORT", ds);
+++		sprintf(rootstr, "DS%d_ROOT", ds);
+++		sprintf(dsidstr, "DS%d_ID", ds);
+++		CONF_SAVE(dataservers[ds-1].ds_ip,
+++			conf_get_str("DataServers", ipstr));
+++		if (dataservers[ds-1].ds_ip == NULL)
+++			spnfsd_err(1, "Missing IP for DS%d\n", ds);
+++		dataservers[ds-1].ds_port =
+++			conf_get_num("DataServers", portstr, DEFAULT_DS_PORT);
+++		CONF_SAVE(dataservers[ds-1].ds_path,
+++			conf_get_str("DataServers", rootstr));
+++		if (dataservers[ds-1].ds_ip == NULL)
+++			spnfsd_err(1, "Missing IP for DS%d\n", ds);
+++		dataservers[ds-1].ds_id =
+++			conf_get_num("DataServers", dsidstr, -1);
+++		if (dataservers[ds-1].ds_id < 0)
+++			spnfsd_err(1, "Missing or invalid ID for DS%d\n", ds);
+++	}
+++
+++	return 0;
+++}
+++
+++static void
+++dump_config()
+++{
+++	int ds;
+++
+++	printf("Verbosity: %d\n", verbose);
+++	printf("Stripe size: %d\n", stripesize);
+++	printf("Dense striping: %d\n", densestriping);
+++	printf("Number of data servers: %d\n", num_ds);
+++
+++	for (ds = 0 ; ds < num_ds ; ds++) {
+++		printf("DS%d IP: %s\n", ds+1, dataservers[ds].ds_ip);
+++		printf("DS%d PORT: %d\n", ds+1, dataservers[ds].ds_port);
+++		printf("DS%d ROOT: %s\n", ds+1, dataservers[ds].ds_path);
+++		printf("DS%d DSID: %d\n", ds+1, dataservers[ds].ds_id);
+++	}
+++}
+++
+++static int
+++do_mounts()
+++{
+++	int ds;
+++	char cmd[1024];
+++
+++	return 0;
+++	for (ds = 0 ; ds < num_ds ; ds++) {
+++		sprintf(cmd, "mkdir -p %s/%s", dsmountdir,
+++			dataservers[ds].ds_ip);
+++		system(cmd);
+++		sprintf(cmd, "mount -t nfs4 %s:%s %s/%s",
+++			dataservers[ds].ds_ip, dataservers[ds].ds_path,
+++			dsmountdir, dataservers[ds].ds_ip);
+++		system(cmd);
+++	}
+++}
+++
+++static void
+++send_invalid_msg(int signum)
+++{
+++	struct spnfs_msg im;
+++	int fd, rval;
+++
+++	im.im_status = SPNFS_STATUS_FAIL;
+++
+++	if ((fd = open(pipefspath, O_RDWR, 0)) == -1) {
+++		perror("spnfsd open pipe");
+++	} else {
+++		if ((rval=atomicio(write, fd, &im, sizeof(im))) != sizeof(im)) {
+++			spnfsd_warn("send_invalid_msg: write(%s)", pipefspath);
+++		}
+++	}
+++}
++diff -up nfs-utils-1.2.2/utils/spnfsd/spnfsd.h.orig nfs-utils-1.2.2/utils/spnfsd/spnfsd.h
++--- nfs-utils-1.2.2/utils/spnfsd/spnfsd.h.orig	2010-09-10 07:09:34.181018798 -0400
+++++ nfs-utils-1.2.2/utils/spnfsd/spnfsd.h	2010-09-10 07:09:34.181018798 -0400
++@@ -0,0 +1,70 @@
+++/*
+++ * spnfsd.h
+++ *
+++ * spNFS - simple pNFS implementation with userspace daemon
+++ *
+++ */
+++/******************************************************************************
+++
+++(c) 2007 Network Appliance, Inc.  All Rights Reserved.
+++
+++Network Appliance provides this source code under the GPL v2 License.
+++The GPL v2 license is available at
+++http://opensource.org/licenses/gpl-license.php.
+++
+++THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+++"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+++LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+++A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
+++CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+++EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+++PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
+++PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
+++LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
+++NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+++SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+++
+++******************************************************************************/
+++
+++#ifndef _PATH_SPNFSDCONF
+++#define _PATH_SPNFSDCONF "/etc/spnfsd.conf"
+++#endif
+++
+++#ifndef DEFAULT_STRIPE_SIZE
+++#define DEFAULT_STRIPE_SIZE 4096
+++#endif
+++
+++#ifndef DEFAULT_DS_PORT
+++#define DEFAULT_DS_PORT 2049
+++#endif
+++
+++struct dserver {
+++        char	*ds_ip;
+++        int	ds_port;
+++        char	*ds_path;
+++	int	ds_id;
+++};
+++
+++/* DMXXX future struct for whole config */
+++struct spnfsd_config {
+++	int		verbose;
+++	int		stripesize;
+++	int		densestriping;
+++	int		num_ds;
+++	struct dserver	dataservers[SPNFS_MAX_DATA_SERVERS];
+++};
+++
+++int spnfsd_layoutget(struct spnfs_msg *);
+++int spnfsd_layoutcommit(struct spnfs_msg *);
+++int spnfsd_layoutreturn(struct spnfs_msg *);
+++int spnfsd_getdeviceiter(struct spnfs_msg *);
+++int spnfsd_getdeviceinfo(struct spnfs_msg *);
+++int spnfsd_setattr(struct spnfs_msg *);
+++int spnfsd_open(struct spnfs_msg *);
+++int spnfsd_close(struct spnfs_msg *);
+++int spnfsd_create(struct spnfs_msg *);
+++int spnfsd_remove(struct spnfs_msg *);
+++int spnfsd_commit(struct spnfs_msg *);
+++int spnfsd_read(struct spnfs_msg *);
+++int spnfsd_write(struct spnfs_msg *);
+++int spnfsd_getfh(char *, unsigned char *, unsigned int *);
++diff -up nfs-utils-1.2.2/utils/spnfsd/spnfsd_ops.c.orig nfs-utils-1.2.2/utils/spnfsd/spnfsd_ops.c
++--- nfs-utils-1.2.2/utils/spnfsd/spnfsd_ops.c.orig	2010-09-10 07:09:34.182038986 -0400
+++++ nfs-utils-1.2.2/utils/spnfsd/spnfsd_ops.c	2010-09-10 07:09:34.182038986 -0400
++@@ -0,0 +1,439 @@
+++/******************************************************************************
+++
+++(c) 2007 Network Appliance, Inc.  All Rights Reserved.
+++
+++Network Appliance provides this source code under the GPL v2 License.
+++The GPL v2 license is available at
+++http://opensource.org/licenses/gpl-license.php.
+++
+++THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+++"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+++LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+++A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
+++CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+++EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+++PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
+++PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
+++LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
+++NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+++SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+++
+++******************************************************************************/
+++
+++#define _LARGEFILE64_SOURCE
+++#define _FILE_OFFSET_BITS 64
+++#include "nfsd4_spnfs.h"
+++#include "spnfsd.h"
+++#include "nfs/nfs.h"
+++#include <string.h>
+++#include <stdio.h>
+++#include <stdlib.h>
+++#include <sys/types.h>
+++#include <sys/stat.h>
+++#include <fcntl.h>
+++#include <unistd.h>
+++#include <errno.h>
+++
+++
+++extern int stripesize;
+++extern int densestriping;
+++extern int num_ds;
+++extern int num_dev;
+++extern char dsmountdir[];
+++extern struct dserver dataservers[SPNFS_MAX_DATA_SERVERS];
+++size_t  strlcat(char *, const char *, size_t);
+++size_t  strlcpy(char *, const char *, size_t);
+++
+++int
+++spnfsd_layoutget(struct spnfs_msg *im)
+++{
+++	int ds;
+++	int rc;
+++	char fullpath[1024]; /* MSXXX */
+++
+++	im->im_status = SPNFS_STATUS_SUCCESS;
+++	im->im_res.layoutget_res.status = 0;
+++	im->im_res.layoutget_res.devid = 1; /* XXX */
+++	im->im_res.layoutget_res.stripe_size = stripesize;
+++	if (densestriping)
+++		im->im_res.layoutget_res.stripe_type = 1; /* DMXXX enum */
+++	else
+++		im->im_res.layoutget_res.stripe_type = 0; /* DMXXX ^^^^ */
+++	im->im_res.layoutget_res.stripe_count = num_ds;
+++
+++	for (ds = 0 ; ds < num_ds ; ds++) {
+++		memset(im->im_res.layoutget_res.flist[ds].fh_val, 0, 128); /*DMXXX*/
+++		sprintf(fullpath, "%s/%s/%lu.%lu",
+++			dsmountdir, dataservers[ds].ds_ip,
+++		        im->im_args.layoutget_args.inode,
+++		        im->im_args.layoutget_args.generation);
+++		rc = spnfsd_getfh(fullpath,
+++				  im->im_res.layoutget_res.flist[ds].fh_val,
+++				  &im->im_res.layoutget_res.flist[ds].fh_len);
+++		if (rc < 0) {
+++			/* MSXXX needs error msg/handling */
+++			im->im_res.layoutget_res.status = ENOENT;
+++			return -1;
+++		}
+++
+++		/*
+++		 * MSXXX another hack...fix the hardcoding.
+++		 * The fh's fsid_type is incremented by 8 to get
+++		 * around stateid checking.
+++		 */
+++		im->im_res.layoutget_res.flist[ds].fh_val[2] += 8;
+++	}
+++
+++	return 0;
+++}
+++
+++int
+++spnfsd_layoutcommit(struct spnfs_msg *im)
+++{
+++	char basename[1024]; /* DMXXX */
+++	char fullpath[1024]; /* DMXXX */
+++	int ds;
+++
+++	im->im_status = SPNFS_STATUS_SUCCESS;
+++	im->im_res.layoutcommit_res.status = 0;
+++	sprintf(basename, "%lu.%lu", im->im_args.layoutcommit_args.inode,
+++				im->im_args.layoutcommit_args.generation);
+++
+++	for (ds = 0 ; ds < num_ds ; ds++) {
+++		sprintf(fullpath, "%s/%s/%s", dsmountdir,
+++			dataservers[ds].ds_ip, basename);
+++		truncate(fullpath, im->im_args.layoutcommit_args.file_size);
+++	}
+++
+++	return 0;
+++}
+++
+++int
+++spnfsd_layoutreturn(struct spnfs_msg *im)
+++{
+++	return 0;
+++}
+++
+++int
+++spnfsd_getdeviceiter(struct spnfs_msg *im)
+++{
+++	im->im_status = SPNFS_STATUS_SUCCESS;
+++	im->im_res.getdeviceiter_res.status = 0;
+++
+++	/* verifier ignored for now */
+++	if (im->im_args.getdeviceiter_args.cookie >= num_dev)
+++		im->im_res.getdeviceiter_res.eof = 1;
+++	else {
+++		/* XXX just hardcoded for now...fix this */
+++		im->im_res.getdeviceiter_res.devid = 1;
+++		im->im_res.getdeviceiter_res.cookie = im->im_args.getdeviceiter_args.cookie + 1;
+++		im->im_res.getdeviceiter_res.verf = 0;
+++		im->im_res.getdeviceiter_res.eof = 0;
+++	}
+++
+++	return 0;
+++}
+++
+++int
+++spnfsd_getdeviceinfo(struct spnfs_msg *im)
+++{
+++	struct spnfs_device *devp;
+++	struct spnfs_data_server *dsp;
+++	u_int32_t devid;
+++	int ds;
+++
+++	im->im_status = SPNFS_STATUS_SUCCESS;
+++	im->im_res.getdeviceinfo_res.status = 0;
+++
+++	devid = im->im_args.getdeviceinfo_args.devid;
+++
+++	/* XXX fix this if/when we support multiple devices */
+++	if (devid != 1) {
+++		im->im_res.getdeviceinfo_res.status = -ENOENT;
+++		return -1;
+++	}
+++
+++	devp = &im->im_res.getdeviceinfo_res.devinfo;
+++	devp->dscount = num_ds;
+++
+++	for (ds = 0 ; ds < num_ds ; ds++) {
+++		dsp = &devp->dslist[ds];
+++		dsp->dsid = dataservers[ds].ds_id;
+++		memset(dsp->netid, 0, 5);
+++		strlcpy(dsp->netid, "tcp", 4);
+++		sprintf(dsp->addr, "%s.%d.%d",
+++			dataservers[ds].ds_ip,
+++			dataservers[ds].ds_port >> 8,
+++			dataservers[ds].ds_port & 0xff);
+++	}
+++
+++	return 0;
+++}
+++
+++int
+++spnfsd_setattr(struct spnfs_msg *im)
+++{
+++	char basename[1024]; /* DMXXX */
+++	char fullpath[1024]; /* DMXXX */
+++	int ds;
+++
+++	im->im_status = SPNFS_STATUS_SUCCESS;
+++	im->im_res.setattr_res.status = 0;
+++	sprintf(basename, "%lu.%lu", im->im_args.setattr_args.inode,
+++				im->im_args.setattr_args.generation);
+++
+++	for (ds = 0 ; ds < num_ds ; ds++) {
+++		sprintf(fullpath, "%s/%s/%s", dsmountdir,
+++			dataservers[ds].ds_ip, basename);
+++		truncate(fullpath, im->im_args.setattr_args.file_size);
+++	}
+++
+++	return 0;
+++}
+++
+++int
+++spnfsd_open(struct spnfs_msg *im)
+++{
+++	char basename[1024]; /* DMXXX */
+++	char fullpath[1024]; /* DMXXX */
+++	char dirpath[1024]; /* DMXXX */
+++	int ds;
+++	int fd, status;
+++	struct stat buf;
+++
+++	im->im_status = SPNFS_STATUS_SUCCESS;
+++	im->im_res.open_res.status = 0;
+++	sprintf(basename, "%lu.%lu", im->im_args.open_args.inode,
+++				im->im_args.open_args.generation);
+++
+++	for (ds = 0 ; ds < num_ds ; ds++) {
+++		sprintf(dirpath, "%s/%s", dsmountdir,
+++			dataservers[ds].ds_ip);
+++		sprintf(fullpath, "%s/%s", dirpath, basename);
+++		status = stat(dirpath, &buf);
+++		im->im_res.open_res.status = errno;
+++		if (status != 0) {
+++			perror(dirpath);
+++			break;
+++		}
+++		if ((fd = open(fullpath, O_WRONLY|O_CREAT, 0777)) < 0) {
+++			perror(fullpath);
+++			im->im_res.open_res.status = errno;
+++			break;
+++		} else {
+++			if (fchmod(fd, 0777) != 0) {
+++				/* DM: we'll consider this non-fatal for now */
+++				perror("chmod stripe");
+++			}
+++			im->im_res.open_res.status = 0;
+++			close(fd);
+++		}
+++	}
+++
+++	return im->im_res.open_res.status;
+++}
+++
+++int
+++spnfsd_close(struct spnfs_msg *im)
+++{
+++	im->im_status = SPNFS_STATUS_SUCCESS;
+++	printf("spnfsd_close received: %d\n", im->im_args.close_args.x);
+++	im->im_res.close_res.y = 7331;
+++	return 0;
+++}
+++
+++int
+++spnfsd_create(struct spnfs_msg *im)
+++{
+++	return 0;
+++}
+++
+++int
+++spnfsd_remove(struct spnfs_msg *im)
+++{
+++	char basename[1024]; /* DMXXX */
+++	char fullpath[1024]; /* DMXXX */
+++	int ds;
+++
+++	im->im_status = SPNFS_STATUS_SUCCESS;
+++	im->im_res.remove_res.status = 0;
+++	sprintf(basename, "%lu.%lu", im->im_args.remove_args.inode,
+++				im->im_args.remove_args.generation);
+++
+++	for (ds = 0 ; ds < num_ds ; ds++) {
+++		sprintf(fullpath, "%s/%s/%s", dsmountdir,
+++			dataservers[ds].ds_ip, basename);
+++		unlink(fullpath);
+++	}
+++
+++	return 0;
+++}
+++
+++int
+++spnfsd_commit(struct spnfs_msg *im)
+++{
+++	im->im_status = SPNFS_STATUS_SUCCESS;
+++	return 0;
+++}
+++
+++int
+++min (unsigned int x, unsigned int y)
+++{
+++	if (x<y) return x; else return y;
+++}
+++
+++/* DMXXX: for read and write, there's an issue with partially completed i/o */
+++int
+++spnfsd_read(struct spnfs_msg *im)
+++{
+++	unsigned long inode = im->im_args.read_args.inode;
+++	unsigned long generation = im->im_args.read_args.generation;
+++	loff_t offset = im->im_args.read_args.offset;
+++	unsigned long len = im->im_args.read_args.len;
+++	int ds, iolen;
+++	loff_t soffset;
+++	int bufoffset = 0;
+++	char fullpath[1024]; /* DMXXX */
+++	int fd, err;
+++	int completed = 0;
+++
+++	im->im_status = SPNFS_STATUS_SUCCESS;
+++	im->im_res.read_res.status = 0;
+++	if (len > SPNFS_MAX_IO) {
+++		im->im_res.read_res.status = -1;
+++		return 0;
+++	}
+++	while (len > 0) {
+++		ds = (offset / stripesize) % num_ds;
+++		if (densestriping == 0)
+++			soffset = offset;
+++		else
+++			soffset = (offset / num_ds) + (offset % stripesize);
+++		iolen = min(len, stripesize - (offset % stripesize));
+++
+++		sprintf(fullpath, "%s/%s/%lu.%lu", dsmountdir,
+++			dataservers[ds].ds_ip, inode, generation);
+++		fd = open(fullpath, O_RDONLY);
+++		if (fd < 0) {
+++			perror(fullpath);
+++			im->im_res.read_res.status = -errno;
+++			return 0; /* DMXXX */
+++		}
+++		/* DM: add some error checking */
+++		lseek64(fd, offset, SEEK_SET);
+++		err = read(fd,
+++			(void *)(im->im_res.read_res.data+bufoffset), iolen);
+++		close(fd);
+++		if (err < 0) {
+++			perror("read");
+++			im->im_res.read_res.status = -errno;
+++			return 0; /* DMXXX */
+++		}
+++
+++		if (err == 0)
+++			break;
+++		iolen = err; /* number of bytes read */
+++		completed += iolen;
+++		len -= iolen;
+++		offset += iolen;
+++		bufoffset += iolen;
+++	}
+++	im->im_res.read_res.status = completed;
+++
+++	return 0;
+++}
+++
+++int
+++spnfsd_write(struct spnfs_msg *im)
+++{
+++	unsigned long inode = im->im_args.write_args.inode;
+++	unsigned long generation = im->im_args.write_args.generation;
+++	loff_t offset = im->im_args.write_args.offset;
+++	size_t len = im->im_args.write_args.len;
+++	char *wbuf = im->im_args.write_args.data;
+++	int ds, iolen;
+++	loff_t soffset;
+++	int bufoffset = 0;
+++	char fullpath[1024]; /* DMXXX */
+++	int fd, err;
+++	int completed = 0;
+++
+++	im->im_status = SPNFS_STATUS_SUCCESS;
+++	im->im_res.write_res.status = 0;
+++	if (len > SPNFS_MAX_IO) {
+++		printf("write length > SPNFS_MAX_IO\n");
+++		im->im_res.write_res.status = -1;
+++		return 0;
+++	}
+++	while (len > 0) {
+++		ds = (offset / stripesize) % num_ds;
+++		if (densestriping == 0)
+++			soffset = offset;
+++		else
+++			soffset = (offset / num_ds) + (offset % stripesize);
+++		iolen = min(len, stripesize - (offset % stripesize));
+++
+++		sprintf(fullpath, "%s/%s/%lu.%lu", dsmountdir,
+++			dataservers[ds].ds_ip, inode, generation);
+++		fd = open(fullpath, O_WRONLY);
+++		if (fd < 0) {
+++			perror(fullpath);
+++			im->im_res.write_res.status = -errno;
+++			return 0; /* DMXXX */
+++		}
+++		/* DM: add some error checking */
+++		lseek64(fd, offset, SEEK_SET);
+++		err = write(fd, (void *)(wbuf+bufoffset), iolen);
+++		close(fd);
+++		if (err < 0) {
+++			perror("write");
+++			im->im_res.write_res.status = -errno;
+++			return 0; /* DMXXX */
+++		}
+++
+++		iolen = err; /* number of bytes read */
+++		completed += iolen;
+++		len -= iolen;
+++		offset += iolen;
+++		bufoffset += iolen;
+++	}
+++	im->im_res.write_res.status = completed;
+++	return 0;
+++}
+++
+++int
+++spnfsd_getfh(char *path, unsigned char *fh_val, unsigned int *fh_len)
+++{
+++	int fd, proc_fd;
+++	unsigned char res[130]; /* XXX align this to proper structure */
+++	extern void spnfsd_errx(int, const char *, ...);
+++
+++	/*
+++	 * hack to make sure there's an active data structure for this
+++	 * inode in the nfs client kernel space
+++	 */
+++	if ((fd = open(path, O_RDONLY)) < 0) {
+++		perror(path);
+++		return -1;
+++	}
+++
+++	/* fd to fh conversion */
+++	proc_fd = open("/proc/fs/spnfs/getfh", O_RDWR);
+++	if (proc_fd < 0) {
+++		spnfsd_errx(1, "open getfh failed (%s)", strerror(errno));
+++	}
+++	if (write(proc_fd, &fd, sizeof(int)) < 0) {
+++		spnfsd_errx(1, "write getfh failed (%s)", strerror(errno));
+++	}
+++	if (read(proc_fd, res, 130) <= 0) {
+++		spnfsd_errx(1, "read getfh failed (%s)", strerror(errno));
+++	}
+++	close(proc_fd);
+++
+++	/* XXX use proper structure */
+++	*fh_len = (short)res[0];
+++	memcpy(fh_val, &res[2], *fh_len);
+++
+++	close(fd);
+++	return 0;
+++}
++diff -up nfs-utils-1.2.2/utils/spnfsd/strlcat.c.orig nfs-utils-1.2.2/utils/spnfsd/strlcat.c
++--- nfs-utils-1.2.2/utils/spnfsd/strlcat.c.orig	2010-09-10 07:09:34.183028701 -0400
+++++ nfs-utils-1.2.2/utils/spnfsd/strlcat.c	2010-09-10 07:09:34.183028701 -0400
++@@ -0,0 +1,77 @@
+++/*	$OpenBSD: strlcat.c,v 1.8 2001/05/13 15:40:15 deraadt Exp $	*/
+++
+++/*
+++ * Copyright (c) 1998 Todd C. Miller <Todd.Miller at courtesan.com>
+++ * All rights reserved.
+++ *
+++ * Redistribution and use in source and binary forms, with or without
+++ * modification, are permitted provided that the following conditions
+++ * are met:
+++ * 1. Redistributions of source code must retain the above copyright
+++ *    notice, this list of conditions and the following disclaimer.
+++ * 2. Redistributions in binary form must reproduce the above copyright
+++ *    notice, this list of conditions and the following disclaimer in the
+++ *    documentation and/or other materials provided with the distribution.
+++ * 3. The name of the author may not be used to endorse or promote products
+++ *    derived from this software without specific prior written permission.
+++ *
+++ * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES,
+++ * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY
+++ * AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL
+++ * THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+++ * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+++ * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
+++ * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
+++ * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
+++ * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
+++ * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+++ */
+++
+++#if defined(LIBC_SCCS) && !defined(lint)
+++static char *rcsid = "$OpenBSD: strlcat.c,v 1.8 2001/05/13 15:40:15 deraadt Exp $";
+++#endif /* LIBC_SCCS and not lint */
+++
+++#include <sys/types.h>
+++#include <string.h>
+++
+++#ifdef HAVE_CONFIG_H
+++#include "config.h"
+++#endif /* HAVE_CONFIG_H */
+++
+++/*
+++ * Appends src to string dst of size siz (unlike strncat, siz is the
+++ * full size of dst, not space left).  At most siz-1 characters
+++ * will be copied.  Always NUL terminates (unless siz <= strlen(dst)).
+++ * Returns strlen(src) + MIN(siz, strlen(initial dst)).
+++ * If retval >= siz, truncation occurred.
+++ */
+++size_t
+++strlcat(dst, src, siz)
+++	char *dst;
+++	const char *src;
+++	size_t siz;
+++{
+++	register char *d = dst;
+++	register const char *s = src;
+++	register size_t n = siz;
+++	size_t dlen;
+++
+++	/* Find the end of dst and adjust bytes left but don't go past end */
+++	while (n-- != 0 && *d != '\0')
+++		d++;
+++	dlen = d - dst;
+++	n = siz - dlen;
+++
+++	if (n == 0)
+++		return(dlen + strlen(s));
+++	while (*s != '\0') {
+++		if (n != 1) {
+++			*d++ = *s;
+++			n--;
+++		}
+++		s++;
+++	}
+++	*d = '\0';
+++
+++	return(dlen + (s - src));	/* count does not include NUL */
+++}
++diff -up nfs-utils-1.2.2/utils/spnfsd/strlcpy.c.orig nfs-utils-1.2.2/utils/spnfsd/strlcpy.c
++--- nfs-utils-1.2.2/utils/spnfsd/strlcpy.c.orig	2010-09-10 07:09:34.183028701 -0400
+++++ nfs-utils-1.2.2/utils/spnfsd/strlcpy.c	2010-09-10 07:09:34.183028701 -0400
++@@ -0,0 +1,73 @@
+++/*	$OpenBSD: strlcpy.c,v 1.5 2001/05/13 15:40:16 deraadt Exp $	*/
+++
+++/*
+++ * Copyright (c) 1998 Todd C. Miller <Todd.Miller at courtesan.com>
+++ * All rights reserved.
+++ *
+++ * Redistribution and use in source and binary forms, with or without
+++ * modification, are permitted provided that the following conditions
+++ * are met:
+++ * 1. Redistributions of source code must retain the above copyright
+++ *    notice, this list of conditions and the following disclaimer.
+++ * 2. Redistributions in binary form must reproduce the above copyright
+++ *    notice, this list of conditions and the following disclaimer in the
+++ *    documentation and/or other materials provided with the distribution.
+++ * 3. The name of the author may not be used to endorse or promote products
+++ *    derived from this software without specific prior written permission.
+++ *
+++ * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES,
+++ * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY
+++ * AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL
+++ * THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+++ * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+++ * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
+++ * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
+++ * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
+++ * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
+++ * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+++ */
+++
+++#if defined(LIBC_SCCS) && !defined(lint)
+++static char *rcsid = "$OpenBSD: strlcpy.c,v 1.5 2001/05/13 15:40:16 deraadt Exp $";
+++#endif /* LIBC_SCCS and not lint */
+++
+++#include <sys/types.h>
+++#include <string.h>
+++
+++#ifdef HAVE_CONFIG_H
+++#include "config.h"
+++#endif /* HAVE_CONFIG_H */
+++
+++/*
+++ * Copy src to string dst of size siz.  At most siz-1 characters
+++ * will be copied.  Always NUL terminates (unless siz == 0).
+++ * Returns strlen(src); if retval >= siz, truncation occurred.
+++ */
+++size_t
+++strlcpy(dst, src, siz)
+++	char *dst;
+++	const char *src;
+++	size_t siz;
+++{
+++	register char *d = dst;
+++	register const char *s = src;
+++	register size_t n = siz;
+++
+++	/* Copy as many bytes as will fit */
+++	if (n != 0 && --n != 0) {
+++		do {
+++			if ((*d++ = *s++) == 0)
+++				break;
+++		} while (--n != 0);
+++	}
+++
+++	/* Not enough room in dst, add NUL and traverse rest of src */
+++	if (n == 0) {
+++		if (siz != 0)
+++			*d = '\0';		/* NUL-terminate dst */
+++		while (*s++)
+++			;
+++	}
+++
+++	return(s - src - 1);	/* count does not include NUL */
+++}


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