ptxdist: add command to export the nfsroot with a userspace nfsd

Signed-off-by: Michael Olbrich <m.olbrich@pengutronix.de>

4 files changed, 68 insertions, 0 deletions

diff --git a/bin/ptxdist b/bin/ptxdist
index b8b5e995c..ff9dfa499 100755
--- a/bin/ptxdist
+++ b/bin/ptxdist
@@ -876,6 +876,7 @@ Misc:
   test <testname>		run tests
   newpackage <type>		create a new package Makefile in a rules dir
 				use 'newpackage help' for a longer description
+  nfsroot			run a userspace NFS server and export the nfsroot
   print <var>			print the contents of a variable, in the way
 				it is known by "make"
   bash				enter a ptxdist environment bash shell
@@ -1800,6 +1801,10 @@ EOF
 			ptxd_template_new "${1}"
 			exit
 			;;
+		nfsroot)
+			ptxd_make_log ptxd_make_nfsd
+			exit
+			;;
 		print)
 			check_config &&
 			if [ -z "${1}" ]; then
diff --git a/config/boardsetup/Kconfig b/config/boardsetup/Kconfig
index 1fdcfbdec..82e0629c2 100644
--- a/config/boardsetup/Kconfig
+++ b/config/boardsetup/Kconfig
@@ -62,6 +62,14 @@ config BOARDSETUP_ETH_INTERFACE
 	  If running virtual hardware (simulated by qemu/kvm), qemu needs to know
 	  about a tap interface for virtual networking. Specify it here.
 
+config BOARDSETUP_NFSPORT
+	int
+	prompt "NFS service port"
+	default 2049
+	help
+	  When exporting the rootfs with unfsd, this port will be used as NFS
+	  service and MOUNT service port
+
 endmenu
 
 menu "Host's Serial Configuration   "
diff --git a/rules/post/ptxd_make_nfsd.make b/rules/post/ptxd_make_nfsd.make
new file mode 100644
index 000000000..87ba9fe85
--- /dev/null
+++ b/rules/post/ptxd_make_nfsd.make
@@ -0,0 +1,15 @@
+# -*-makefile-*-
+#
+# Copyright (C) 2012 by Michael Olbrich <m.olbrich@pengutronix.de>
+#
+# See CREDITS for details about who has contributed to this project.
+#
+# For further information about the PTXdist project and license conditions
+# see the README file.
+#
+
+ptxd_make_nfsd: $(STATEDIR)/host-unfs3.install.post $(STATEDIR)/world.targetinstall
+	@$(call image/env) \
+	ptxd_make_nfsd
+
+# vim: syntax=make
diff --git a/scripts/lib/ptxd_make_nfsd.sh b/scripts/lib/ptxd_make_nfsd.sh
new file mode 100644
index 000000000..56e50681a
--- /dev/null
+++ b/scripts/lib/ptxd_make_nfsd.sh
@@ -0,0 +1,40 @@
+#!/bin/bash
+#
+# Copyright (C) 2012 by Michael Olbrich <m.olbrich@pengutronix.de>
+#
+# See CREDITS for details about who has contributed to this project.
+#
+# For further information about the PTXdist project and license conditions
+# see the README file.
+#
+
+ptxd_make_nfsd_exec() {
+    local port
+    local root="/$(basename "${ptx_nfsroot}")"
+    local base="$(dirname "${ptx_nfsroot}")"
+
+    if ! port="$(ptxd_get_kconfig "${PTXDIST_BOARDSETUP}" "PTXCONF_BOARDSETUP_NFSPORT")"; then
+	port=2049
+    fi
+
+    echo
+    echo "Mount rootfs with nfsroot=${root},v3,tcp,port=${port},mountport=${port}"
+    echo
+
+    echo "${root} (rw,no_root_squash)" > "${PTXDIST_TEMPDIR}/exports" &&
+    UNFS_BASE="${base}" unfsd -e "${PTXDIST_TEMPDIR}/exports" -n ${port} -m ${port} -p -d
+}
+export -f ptxd_make_nfsd_exec
+
+ptxd_make_nfsd() {
+    ptxd_make_image_init &&
+    ptxd_get_ipkg_files ${image_pkgs_selected_target} &&
+
+    cd "${ptx_nfsroot}" &&
+    {
+	ptxd_dopermissions "${ptxd_reply_perm_files[@]}"
+	echo ptxd_make_nfsd_exec
+    } | fakeroot --
+}
+export -f ptxd_make_nfsd
+