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dracut/0010-nbd-add-systemd-generator-and-use-nbd-export-names-i.patch
Harald Hoyer 7ba020668f dracut-044-17.git20160108 
- include more HID driver
- include machine info file
- fix network carrier detection
- fix nbd
- do not copy over lldpad state
- restorecon the final initramfs image
2016-01-08 11:54:31 +01:00

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From b070c1d360e86db69a8049b2f040b8223bc484c9 Mon Sep 17 00:00:00 2001
From: Harald Hoyer <harald@redhat.com>
Date: Mon, 14 Dec 2015 13:10:33 +0100
Subject: [PATCH] nbd: add systemd generator and use nbd export names instead
of port numbers
Add a systemd generator for root=nbd:.. so that systemd has a correct
sysroot.mount unit.
Use export names instead of port numbers, because port number based
exports are deprecated and were removed.
---
dracut.cmdline.7.asc | 14 +++++++++++---
modules.d/95nbd/module-setup.sh | 3 +++
modules.d/95nbd/nbdroot.sh | 11 +++++------
modules.d/95nbd/parse-nbdroot.sh | 10 ++++++++--
test/TEST-40-NBD/dhcpd.conf | 10 +++++-----
test/TEST-40-NBD/server-init.sh | 3 +--
test/TEST-40-NBD/test.sh | 41 ++++++++++++++++++++++++----------------
7 files changed, 58 insertions(+), 34 deletions(-)
diff --git a/dracut.cmdline.7.asc b/dracut.cmdline.7.asc
index c34b45b..e160e3b 100644
--- a/dracut.cmdline.7.asc
+++ b/dracut.cmdline.7.asc
@@ -755,13 +755,21 @@ NOTE: letters in the MAC-address must be lowercase!
NBD
~~~
-**root=**??? **netroot=**nbd:__<server>__:__<port>__[:__<fstype>__[:__<mountopts>__[:__<nbdopts>__]]]::
- mount nbd share from <server>
+**root=**??? **netroot=**nbd:__<server>__:__<port/exportname>__[:__<fstype>__[:__<mountopts>__[:__<nbdopts>__]]]::
+ mount nbd share from <server>.
++
+NOTE:
+ If "exportname" instead of "port" is given the standard port is used.
+ Newer versions of nbd are only supported with "exportname".
-**root=dhcp** with **dhcp** **root-path=**nbd:__<server>__:__<port>__[:__<fstype>__[:__<mountopts>__[:__<nbdopts>__]]]::
+**root=dhcp** with **dhcp** **root-path=**nbd:__<server>__:__<port/exportname>__[:__<fstype>__[:__<mountopts>__[:__<nbdopts>__]]]::
root=dhcp alone directs initrd to look at the DHCP root-path where NBD
options can be specified. This syntax is only usable in cases where you are
directly mounting the volume as the rootfs.
++
+NOTE:
+ If "exportname" instead of "port" is given the standard port is used.
+ Newer versions of nbd are only supported with "exportname".
DASD
~~~~
diff --git a/modules.d/95nbd/module-setup.sh b/modules.d/95nbd/module-setup.sh
index 3cb6f49..22f6a3b 100755
--- a/modules.d/95nbd/module-setup.sh
+++ b/modules.d/95nbd/module-setup.sh
@@ -34,6 +34,9 @@ install() {
inst nbd-client
inst_hook cmdline 90 "$moddir/parse-nbdroot.sh"
inst_script "$moddir/nbdroot.sh" "/sbin/nbdroot"
+ if dracut_module_included "systemd-initrd"; then
+ inst_script "$moddir/nbd-generator.sh" $systemdutildir/system-generators/dracut-nbd-generator
+ fi
dracut_need_initqueue
}
diff --git a/modules.d/95nbd/nbdroot.sh b/modules.d/95nbd/nbdroot.sh
index dd2bb55..7057f23 100755
--- a/modules.d/95nbd/nbdroot.sh
+++ b/modules.d/95nbd/nbdroot.sh
@@ -28,11 +28,6 @@ nbdfstype=${nroot%%:*}; nroot=${nroot#*:}
nbdflags=${nroot%%:*}
nbdopts=${nroot#*:}
-# If nbdport not an integer, then assume name based import
-if [ ! -z $(echo "$nbdport" | sed 's/[0-9]//g') ]; then
- nbdport="-N $nbdport"
-fi
-
if [ "$nbdopts" = "$nbdflags" ]; then
unset nbdopts
fi
@@ -113,7 +108,11 @@ if strstr "$(nbd-client --help 2>&1)" "systemd-mark"; then
preopts="--systemd-mark $preopts"
fi
-nbd-client $preopts "$nbdserver" $nbdport /dev/nbd0 $opts || exit 1
+if [ "$nbdport" -gt 0 ] 2>/dev/null; then
+ nbd-client "$nbdserver" $nbdport /dev/nbd0 $preopts $opts || exit 1
+else
+ nbd-client -name "$nbdport" "$nbdserver" /dev/nbd0 $preopts $opts || exit 1
+fi
# NBD doesn't emit uevents when it gets connected, so kick it
echo change > /sys/block/nbd0/uevent
diff --git a/modules.d/95nbd/parse-nbdroot.sh b/modules.d/95nbd/parse-nbdroot.sh
index 746fb14..902e9a9 100755
--- a/modules.d/95nbd/parse-nbdroot.sh
+++ b/modules.d/95nbd/parse-nbdroot.sh
@@ -1,8 +1,8 @@
#!/bin/sh
#
# Preferred format:
-# root=nbd:srv:port[:fstype[:rootflags[:nbdopts]]]
-# [root=*] netroot=nbd:srv:port[:fstype[:rootflags[:nbdopts]]]
+# root=nbd:srv:port/exportname[:fstype[:rootflags[:nbdopts]]]
+# [root=*] netroot=nbd:srv:port/exportname[:fstype[:rootflags[:nbdopts]]]
#
# nbdopts is a comma separated list of options to give to nbd-client
#
@@ -45,6 +45,12 @@ fi
# If it's not nbd we don't continue
[ "${netroot%%:*}" = "nbd" ] || return
+
+if [ -n "${DRACUT_SYSTEMD}" ] && [ "$root" = "dhcp" ]; then
+ echo "root=$netroot" > /etc/cmdline.d/root.conf
+ systemctl --no-block daemon-reload
+fi
+
# Check required arguments
netroot_to_var $netroot
[ -z "$server" ] && die "Argument server for nbdroot is missing"
diff --git a/test/TEST-40-NBD/dhcpd.conf b/test/TEST-40-NBD/dhcpd.conf
index 942bc6a..08461f9 100644
--- a/test/TEST-40-NBD/dhcpd.conf
+++ b/test/TEST-40-NBD/dhcpd.conf
@@ -20,7 +20,7 @@ subnet 192.168.50.0 netmask 255.255.255.0 {
group {
host nbd-2 {
- option root-path "nbd:192.168.50.1:2000";
+ option root-path "nbd:192.168.50.1:raw";
hardware ethernet 52:54:00:12:34:01;
fixed-address 192.168.50.101;
@@ -29,7 +29,7 @@ subnet 192.168.50.0 netmask 255.255.255.0 {
group {
host nbd-3 {
- option root-path "nbd:192.168.50.1:2000:ext2";
+ option root-path "nbd:192.168.50.1:raw:ext2";
hardware ethernet 52:54:00:12:34:02;
fixed-address 192.168.50.101;
@@ -38,7 +38,7 @@ subnet 192.168.50.0 netmask 255.255.255.0 {
group {
host nbd-4 {
- option root-path "nbd:192.168.50.1:2000::errors=panic";
+ option root-path "nbd:192.168.50.1:raw::errors=panic";
hardware ethernet 52:54:00:12:34:03;
fixed-address 192.168.50.101;
@@ -47,7 +47,7 @@ subnet 192.168.50.0 netmask 255.255.255.0 {
group {
host nbd-5 {
- option root-path "nbd:192.168.50.1:2000:ext2:errors=panic";
+ option root-path "nbd:192.168.50.1:raw:ext2:errors=panic";
hardware ethernet 52:54:00:12:34:04;
fixed-address 192.168.50.101;
@@ -57,7 +57,7 @@ subnet 192.168.50.0 netmask 255.255.255.0 {
group {
host nbd-6 {
# Use the encrypted image
- option root-path "nbd:192.168.50.1:2001:ext2:errors=panic";
+ option root-path "nbd:192.168.50.1:encrypted:ext2:errors=panic";
hardware ethernet 52:54:00:12:34:05;
fixed-address 192.168.50.101;
diff --git a/test/TEST-40-NBD/server-init.sh b/test/TEST-40-NBD/server-init.sh
index 73c64d6..0039753 100755
--- a/test/TEST-40-NBD/server-init.sh
+++ b/test/TEST-40-NBD/server-init.sh
@@ -13,8 +13,7 @@ ip link set dev eth0 name ens3
ip addr add 192.168.50.1/24 dev ens3
ip link set ens3 up
modprobe af_packet
-nbd-server 2000 /dev/sdb -C /dev/null
-nbd-server 2001 /dev/sdc -C /dev/null
+nbd-server
>/var/lib/dhcpd/dhcpd.leases
chmod 777 /var/lib/dhcpd/dhcpd.leases
dhcpd -d -cf /etc/dhcpd.conf -lf /var/lib/dhcpd/dhcpd.leases &
diff --git a/test/TEST-40-NBD/test.sh b/test/TEST-40-NBD/test.sh
index 39966ac..28ba6aa 100755
--- a/test/TEST-40-NBD/test.sh
+++ b/test/TEST-40-NBD/test.sh
@@ -5,8 +5,8 @@ TEST_DESCRIPTION="root filesystem on NBD"
KVERSION=${KVERSION-$(uname -r)}
# Uncomment this to debug failures
-#DEBUGFAIL="rd.shell rd.break"
-#SERIAL="udp:127.0.0.1:9999"
+#DEBUGFAIL="rd.shell rd.break rd.debug"
+SERIAL="tcp:127.0.0.1:9999"
SERIAL="null"
run_server() {
@@ -104,36 +104,36 @@ test_run() {
client_run() {
# The default is ext3,errors=continue so use that to determine
# if our options were parsed and used
+ client_test "NBD root=nbd:IP:port" 52:54:00:12:34:00 \
+ "root=nbd:192.168.50.1:raw rd.luks=0" || return 1
+
client_test "NBD root=nbd:IP:port::fsopts" 52:54:00:12:34:00 \
- "root=nbd:192.168.50.1:2000::errors=panic rd.luks=0" \
+ "root=nbd:192.168.50.1:raw::errors=panic rd.luks=0" \
ext3 errors=panic || return 1
- client_test "NBD root=nbd:IP:port" 52:54:00:12:34:00 \
- "root=nbd:192.168.50.1:2000 rd.luks=0" || return 1
-
client_test "NBD root=nbd:IP:port:fstype" 52:54:00:12:34:00 \
- "root=nbd:192.168.50.1:2000:ext2 rd.luks=0" ext2 || return 1
+ "root=nbd:192.168.50.1:raw:ext2 rd.luks=0" ext2 || return 1
client_test "NBD root=nbd:IP:port:fstype:fsopts" 52:54:00:12:34:00 \
- "root=nbd:192.168.50.1:2000:ext2:errors=panic rd.luks=0" \
+ "root=nbd:192.168.50.1:raw:ext2:errors=panic rd.luks=0" \
ext2 errors=panic || return 1
client_test "NBD Bridge root=nbd:IP:port:fstype:fsopts" 52:54:00:12:34:00 \
- "root=nbd:192.168.50.1:2000:ext2:errors=panic bridge rd.luks=0" \
+ "root=nbd:192.168.50.1:raw:ext2:errors=panic bridge rd.luks=0" \
ext2 errors=panic || return 1
# There doesn't seem to be a good way to validate the NBD options, so
# just check that we don't screw up the other options
client_test "NBD root=nbd:IP:port:::NBD opts" 52:54:00:12:34:00 \
- "root=nbd:192.168.50.1:2000:::bs=2048 rd.luks=0" || return 1
+ "root=nbd:192.168.50.1:raw:::bs=2048 rd.luks=0" || return 1
client_test "NBD root=nbd:IP:port:fstype::NBD opts" 52:54:00:12:34:00 \
- "root=nbd:192.168.50.1:2000:ext2::bs=2048 rd.luks=0" ext2 || return 1
+ "root=nbd:192.168.50.1:raw:ext2::bs=2048 rd.luks=0" ext2 || return 1
client_test "NBD root=nbd:IP:port:fstype:fsopts:NBD opts" \
52:54:00:12:34:00 \
- "root=nbd:192.168.50.1:2000:ext2:errors=panic:bs=2048 rd.luks=0" \
+ "root=nbd:192.168.50.1:raw:ext2:errors=panic:bs=2048 rd.luks=0" \
ext2 errors=panic || return 1
# DHCP root-path parsing
@@ -156,7 +156,7 @@ client_run() {
# netroot handling
client_test "NBD netroot=nbd:IP:port" 52:54:00:12:34:00 \
- "netroot=nbd:192.168.50.1:2000 rd.luks=0" || return 1
+ "netroot=nbd:192.168.50.1:raw rd.luks=0" || return 1
client_test "NBD netroot=dhcp DHCP root-path nbd:srv:port:fstype:fsopts" \
52:54:00:12:34:04 "netroot=dhcp rd.luks=0" ext2 errors=panic || return 1
@@ -167,7 +167,7 @@ client_run() {
client_test "NBD root=LABEL=dracut netroot=nbd:IP:port" \
52:54:00:12:34:00 \
- "root=LABEL=dracut rd.luks.uuid=$ID_FS_UUID rd.lv.vg=dracut netroot=nbd:192.168.50.1:2001" || return 1
+ "root=LABEL=dracut rd.luks.uuid=$ID_FS_UUID rd.lv.vg=dracut netroot=nbd:192.168.50.1:encrypted" || return 1
# XXX This should be ext2,errors=panic but that doesn't currently
# XXX work when you have a real root= line in addition to netroot=
@@ -308,11 +308,20 @@ make_server_root() {
mkdir -p "$initdir"
(
cd "$initdir";
- mkdir -p dev sys proc etc var/run var/lib/dhcpd tmp
+ mkdir -p dev sys proc etc var/run var/lib/dhcpd tmp etc/nbd-server
)
+ cat > "$initdir/etc/nbd-server/config" <<EOF
+[generic]
+[raw]
+exportname = /dev/sdb
+port = 2000
+[encrypted]
+exportname = /dev/sdc
+port = 2001
+EOF
inst_multiple sh ls shutdown poweroff stty cat ps ln ip \
dmesg mkdir cp ping grep \
- sleep nbd-server chmod
+ sleep nbd-server chmod modprobe vi
for _terminfodir in /lib/terminfo /etc/terminfo /usr/share/terminfo; do
[ -f ${_terminfodir}/l/linux ] && break
done
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