UCARP allows a couple of hosts to share common virtual IP addresses in
order to provide automatic failover. It is a portable userland
implementation of the secure and patent-free Common Address Redundancy
Protocol (CARP).
Signed-off-by: Yi Zhao <yi.z...@windriver.com>
---
.../ucarp/ucarp/ucarp-configure-sha1.patch | 47 ++++++
.../ucarp/ucarp/ucarp-configure-snprintf.patch | 55 +++++++
meta-cgl-common/recipes-cgl/ucarp/ucarp/ucarp.init | 162 +++++++++++++++++++++
.../recipes-cgl/ucarp/ucarp/ucarp.service | 11 ++
.../recipes-cgl/ucarp/ucarp/vip-001.conf.example | 11 ++
.../recipes-cgl/ucarp/ucarp/vip-common.conf | 8 +
.../recipes-cgl/ucarp/ucarp/vip-down.sh | 7 +
meta-cgl-common/recipes-cgl/ucarp/ucarp/vip-up.sh | 7 +
meta-cgl-common/recipes-cgl/ucarp/ucarp_1.5.2.bb | 65 +++++++++
9 files changed, 373 insertions(+)
create mode 100644
meta-cgl-common/recipes-cgl/ucarp/ucarp/ucarp-configure-sha1.patch
create mode 100644
meta-cgl-common/recipes-cgl/ucarp/ucarp/ucarp-configure-snprintf.patch
create mode 100644 meta-cgl-common/recipes-cgl/ucarp/ucarp/ucarp.init
create mode 100644 meta-cgl-common/recipes-cgl/ucarp/ucarp/ucarp.service
create mode 100644 meta-cgl-common/recipes-cgl/ucarp/ucarp/vip-001.conf.example
create mode 100644 meta-cgl-common/recipes-cgl/ucarp/ucarp/vip-common.conf
create mode 100644 meta-cgl-common/recipes-cgl/ucarp/ucarp/vip-down.sh
create mode 100644 meta-cgl-common/recipes-cgl/ucarp/ucarp/vip-up.sh
create mode 100644 meta-cgl-common/recipes-cgl/ucarp/ucarp_1.5.2.bb
diff --git a/meta-cgl-common/recipes-cgl/ucarp/ucarp/ucarp-configure-sha1.patch
b/meta-cgl-common/recipes-cgl/ucarp/ucarp/ucarp-configure-sha1.patch
new file mode 100644
index 0000000..01167d4
--- /dev/null
+++ b/meta-cgl-common/recipes-cgl/ucarp/ucarp/ucarp-configure-sha1.patch
@@ -0,0 +1,47 @@
+Configure SHA1 option properly
+
+Work around a cross-compiling configuration problem by
+defaulting the USE_SYSTEM_CRYPT_SHA1 option.
+
+Upstream-Status: Inappropriate [embedded specific]
+
+Signed-off-by: Greff Moffatt <gregg.moff...@windriver.com>
+Signed-off-by: Aws Ismail <aws.ism...@windriver.com>
+
+diff --git a/configure.ac b/configure.ac
+index fa6300f..3978c43 100644
+--- a/configure.ac
++++ b/configure.ac
+@@ -232,32 +232,6 @@ else
+ [return value of an overflowed snprintf])
+ fi
+
+-AC_MSG_CHECKING(whether you already have a standard SHA1 implementation)
+-AC_RUN_IFELSE([AC_LANG_SOURCE([[
+-#include <stdio.h>
+-#include <string.h>
+-#include <sys/types.h>
+-#include <sha1.h>
+-
+-int main(void)
+-{
+- SHA1_CTX ctx;
+- char b[41];
+-
+- SHA1Init(&ctx);
+- SHA1Update(&ctx, (const unsigned char *) "test", 4U);
+- SHA1End(&ctx, b);
+- b[40] = 0;
+-
+- return strcasecmp(b, "a94a8fe5ccb19ba61c4c0873d391e987982fbbd3");
+-}
+-]])],[
+-AC_MSG_RESULT(yes)
+-AC_DEFINE(USE_SYSTEM_CRYPT_SHA1,,[Define if you already have standard
+-SHA1 functions])
+-],[AC_MSG_RESULT(no)
+-],[])
+-
+ AC_MSG_CHECKING([whether syslog names are available])
+ AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[
+ #define SYSLOG_NAMES 1
diff --git
a/meta-cgl-common/recipes-cgl/ucarp/ucarp/ucarp-configure-snprintf.patch
b/meta-cgl-common/recipes-cgl/ucarp/ucarp/ucarp-configure-snprintf.patch
new file mode 100644
index 0000000..adcdf64
--- /dev/null
+++ b/meta-cgl-common/recipes-cgl/ucarp/ucarp/ucarp-configure-snprintf.patch
@@ -0,0 +1,55 @@
+Configure snprintf option properly
+
+Work around a cross-compiling configuration problem by
+defaulting the CONF_SNPRINTF_TYPE option in the top-level
+Makefile, as opposed through configure.
+
+Upstream-Status: Inappropriate [embedded specific]
+
+Signed-off-by: Greff Moffatt <gregg.moff...@windriver.com>
+Signed-off-by: Aws Ismail <aws.ism...@windriver.com>
+
+diff --git a/configure.ac b/configure.ac
+index 3978c43..da18a62 100644
+--- a/configure.ac
++++ b/configure.ac
+@@ -199,39 +199,6 @@ if test -r /dev/random; then
+ AC_DEFINE(HAVE_DEV_RANDOM,,[Define if you have /dev/random])
+ fi
+
+-AC_MSG_CHECKING(whether snprintf is C99 conformant)
+-AC_RUN_IFELSE([AC_LANG_SOURCE([[
+-#include <stdio.h>
+-#ifdef STDC_HEADERS
+-# include <stdlib.h>
+-# include <stddef.h>
+-#else
+-# if HAVE_STDLIB_H
+-# include <stdlib.h>
+-# endif
+-#endif
+-#ifdef HAVE_UNISTD_H
+-# include <unistd.h>
+-#endif
+-
+-int main(void)
+-{
+- char buf[4];
+-
+- (void) fprintf(fopen("conftestval", "w"), "%d\n",
+- (int) snprintf(buf, sizeof buf, "12345678"));
+- return 0;
+-}
+-]])],[CONF_SNPRINTF_TYPE=`cat conftestval`
+-],[],[])
+-AC_MSG_RESULT(done)
+-if test "x$CONF_SNPRINTF_TYPE" = "x" ; then
+- AC_MSG_WARN(your operating system doesn't implement snprintf)
+-else
+- AC_DEFINE_UNQUOTED(CONF_SNPRINTF_TYPE, $CONF_SNPRINTF_TYPE,
+- [return value of an overflowed snprintf])
+-fi
+-
+ AC_MSG_CHECKING([whether syslog names are available])
+ AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[
+ #define SYSLOG_NAMES 1
diff --git a/meta-cgl-common/recipes-cgl/ucarp/ucarp/ucarp.init
b/meta-cgl-common/recipes-cgl/ucarp/ucarp/ucarp.init
new file mode 100644
index 0000000..c18d029
--- /dev/null
+++ b/meta-cgl-common/recipes-cgl/ucarp/ucarp/ucarp.init
@@ -0,0 +1,162 @@
+#!/bin/sh
+# $Id$
+#
+# chkconfig: - 91 09
+# description: Starts and stops the common address redundancy protocol daemon
+
+### BEGIN INIT INFO
+# Provides: lsb-ucarp
+# Required-Start: $local_fs $network $remote_fs
+# Required-Stop: $local_fs $network $remote_fs
+# Default-Start:
+# Default-Stop: 0 1 6
+# Short-Description: start and stop ucarp
+# Description: Common Address Redundancy Protocol (CARP) for Unix
+### END INIT INFO
+
+# Source function library.
+. /etc/init.d/functions
+
+# Source networking configuration.
+#. /etc/sysconfig/network
+
+# Check that networking is up.
+#[ ${NETWORKING} = "no" ] && exit 0
+
+get_files() {
+ FILES=`find ${CONFDIR} -maxdepth 1 -type f -name 'vip-*.conf' \
+ -printf "%f\n" | egrep '^vip-[[:digit:]]+\.conf$' | LC_COLLATE="C"
sort`
+}
+
+prog="common address redundancy protocol daemon"
+LOGGER="/usr/bin/logger -p daemon.notice -t ucarp"
+CONFDIR=/etc/ucarp
+UPSCRIPT=/usr/libexec/ucarp/vip-up.sh
+DOWNSCRIPT=/usr/libexec/ucarp/vip-down.sh
+PROGRAM=/usr/sbin/ucarp
+
+start() {
+ RETVAL=-1
+ VIP_RETVAL=0
+
+ echo -n "Starting ${prog}: "
+
+ get_files
+
+ if [ -z "${FILES}" ]; then
+ ${LOGGER} "no virtual addresses are configured in ${CONFDIR}"
+ #failure
+ RETVAL=1
+ else
+ for FILE in ${FILES}; do
+ # Check that the file name gives us an ID between 1 and 255
+ ID=`echo ${FILE}| sed 's/^vip-\(.*\).conf/\1/'`
+ if [ ${ID} -lt 1 -o ${ID} -gt 255 ]; then
+ ${LOGGER} "ID out of range (1-255) for ${FILE}, skipped VIP ID
${ID}"
+ continue
+ fi
+
+ unset PASSWORD BIND_INTERFACE SOURCE_ADDRESS VIP_ADDRESS OPTIONS
+ # Source ucarp settings
+ . ${CONFDIR}/vip-common.conf
+ . ${CONFDIR}/${FILE}
+ TMP_RETVAL=0
+
+ if [ -z "${PASSWORD}" ]; then
+ ${LOGGER} "no PASSWORD found for ${FILE}, skipped VIP ID ${ID}"
+ TMP_RETVAL=1
+ fi
+ if [ -z "${BIND_INTERFACE}" ]; then
+ ${LOGGER} "no BIND_INTERFACE found for ${FILE}, skipped VIP ID
${ID}"
+ TMP_RETVAL=1
+ fi
+ if [ -z "${SOURCE_ADDRESS}" ]; then
+ ${LOGGER} "no SOURCE_ADDRESS found for ${FILE}, skipped VIP ID
${ID}"
+ TMP_RETVAL=1
+ fi
+ if [ -z "${VIP_ADDRESS}" ]; then
+ ${LOGGER} "no VIP_ADDRESS found for ${FILE}, skipped VIP ID
${ID}"
+ TMP_RETVAL=1
+ fi
+
+ # If one of more of the above failed, skip the daemon launch
+ if [ ${TMP_RETVAL} -ne 0 ]; then
+ VIP_RETVAL=1
+ continue
+ fi
+
+ [ ${RETVAL} -eq -1 ] && RETVAL=0
+ ${PROGRAM} --daemonize --interface=${BIND_INTERFACE}
--pass=${PASSWORD} --srcip=${SOURCE_ADDRESS} --vhid=${ID} --addr=${VIP_ADDRESS}
${OPTIONS} --upscript=$UPSCRIPT --downscript=$DOWNSCRIPT >/dev/null
+ LAUNCH_RETVAL=$?
+ [ ${LAUNCH_RETVAL} -ne 0 ] && RETVAL=1
+ done
+
+ # failure/success or warning if launch worked with some vip errors
+ if [ ${RETVAL} -eq 0 -a ${VIP_RETVAL} -eq 0 ]; then
+ ${LOGGER} "all ucarp configurations were applied successfully"
+ #success
+ touch /var/lock/subsys/ucarp
+ elif [ ${RETVAL} -eq 0 -a ${VIP_RETVAL} -eq 1 ]; then
+ ${LOGGER} "error in one or more of the ucarp configurations"
+ #warning
+ else
+ ${LOGGER} "error running one or more of the ucarp daemon instances"
+ #failure
+ fi
+ fi
+ echo
+}
+
+stop() {
+ echo -n "Stopping $prog: "
+ killproc ${PROGRAM} >/dev/null
+ RETVAL=$?
+
+ # With "--shutdown" in the default OPTIONS, the down script is called
+ # when ucarp is stopped, so IP addresses are released, no "leftovers".
+
+ # failure/success (no warning, too complicated to handle properly)
+ if [ ${RETVAL} -eq 1 ]; then
+ ${LOGGER} "it seems like no ucarp daemon were running"
+ #failure
+ else
+ ${LOGGER} "all ucarp daemons stopped and IP addresses unassigned"
+ #success
+ rm -f /var/lock/subsys/ucarp
+ fi
+ echo
+}
+
+# See how we were called.
+case "$1" in
+ start)
+ start
+ ;;
+ stop)
+ stop
+ ;;
+ restart)
+ stop
+ start
+ ;;
+ condrestart)
+ if [ -f /var/lock/subsys/ucarp ]; then
+ stop
+ start
+ fi
+ ;;
+ status)
+ if pidof -o %PPID ${PROGRAM} > /dev/null; then
+ echo "Running"
+ RETVAL=0
+ else
+ echo "Not running"
+ RETVAL=1
+ fi
+ ;;
+ *)
+ echo "Usage: $0 {start|stop|restart|condrestart|status}"
+ exit 1
+esac
+exit $RETVAL
+
diff --git a/meta-cgl-common/recipes-cgl/ucarp/ucarp/ucarp.service
b/meta-cgl-common/recipes-cgl/ucarp/ucarp/ucarp.service
new file mode 100644
index 0000000..015837e
--- /dev/null
+++ b/meta-cgl-common/recipes-cgl/ucarp/ucarp/ucarp.service
@@ -0,0 +1,11 @@
+[Unit]
+Description=Common address redundancy protocol daemon
+After=syslog.target network.target
+
+[Service]
+PrivateTmp=true
+Type=forking
+ExecStart=@LIBEXECDIR@/ucarp start
+
+[Install]
+WantedBy=multi-user.target
diff --git a/meta-cgl-common/recipes-cgl/ucarp/ucarp/vip-001.conf.example
b/meta-cgl-common/recipes-cgl/ucarp/ucarp/vip-001.conf.example
new file mode 100644
index 0000000..2342522
--- /dev/null
+++ b/meta-cgl-common/recipes-cgl/ucarp/ucarp/vip-001.conf.example
@@ -0,0 +1,11 @@
+# Virtual IP configuration file for UCARP
+# The number (from 001 to 255) in the name of the file is the identifier
+
+# In the simple scenario, you want a single virtual IP address from the _same_
+# network to be taken over by one of the routers.
+SOURCE_ADDRESS="192.168.1.20"
+VIP_ADDRESS="192.168.1.252"
+
+# In more complex scenarios, check the "vip-common" file for values to override
+# and how to add options.
+
diff --git a/meta-cgl-common/recipes-cgl/ucarp/ucarp/vip-common.conf
b/meta-cgl-common/recipes-cgl/ucarp/ucarp/vip-common.conf
new file mode 100644
index 0000000..6325346
--- /dev/null
+++ b/meta-cgl-common/recipes-cgl/ucarp/ucarp/vip-common.conf
@@ -0,0 +1,8 @@
+# Common VIP settings which can be overridden in individual vip-<nnnn>.conf
+PASSWORD="vip"
+BIND_INTERFACE="eth0"
+SOURCE_ADDRESS=""
+
+# If you have extra options to add, see "ucarp --help" output
+OPTIONS="--shutdown --preempt"
+
diff --git a/meta-cgl-common/recipes-cgl/ucarp/ucarp/vip-down.sh
b/meta-cgl-common/recipes-cgl/ucarp/ucarp/vip-down.sh
new file mode 100644
index 0000000..a431c32
--- /dev/null
+++ b/meta-cgl-common/recipes-cgl/ucarp/ucarp/vip-down.sh
@@ -0,0 +1,7 @@
+#! /bin/sh
+exec 2> /dev/null
+
+#/sbin/ip addr del "$2"/24 dev "$1"
+
+# or alternatively:
+/sbin/ifconfig "$1":254 down
diff --git a/meta-cgl-common/recipes-cgl/ucarp/ucarp/vip-up.sh
b/meta-cgl-common/recipes-cgl/ucarp/ucarp/vip-up.sh
new file mode 100644
index 0000000..c1b8a4f
--- /dev/null
+++ b/meta-cgl-common/recipes-cgl/ucarp/ucarp/vip-up.sh
@@ -0,0 +1,7 @@
+#! /bin/sh
+exec 2> /dev/null
+
+#/sbin/ip addr add "$2"/24 dev "$1"
+
+# or alternatively:
+/sbin/ifconfig "$1":254 "$2" netmask 255.255.255.0
diff --git a/meta-cgl-common/recipes-cgl/ucarp/ucarp_1.5.2.bb
b/meta-cgl-common/recipes-cgl/ucarp/ucarp_1.5.2.bb
new file mode 100644
index 0000000..6f30bf7
--- /dev/null
+++ b/meta-cgl-common/recipes-cgl/ucarp/ucarp_1.5.2.bb
@@ -0,0 +1,65 @@
+SUMMARY = "Common Address Redundancy Protocol for Unix"
+DESCRIPTION = "UCARP allows a couple of hosts to share common \
+virtual IP addresses in order to provide automatic failover. \
+It is a portable userland implementation of the secure and \
+patent-free Common Address Redundancy Protocol (CARP, OpenBSD's \
+alternative to the patents-bloated VRRP. \
+Strong points of the CARP protocol are: very low overhead, \
+cryptographically signed messages, interoperability between \
+different operating systems and no need for any dedicated extra \
+network link between redundant hosts."
+
+HOMEPAGE = "http://www.ucarp.org";
+
+LICENSE = "BSD-3-Clause"
+LIC_FILES_CHKSUM = "file://COPYING;md5=278a886e91f2f6c983ffdf040130cdc6"
+
+SRC_URI = "http://download.pureftpd.org/pub/ucarp/${BPN}-${PV}.tar.gz \
+ file://ucarp-configure-sha1.patch \
+ file://ucarp-configure-snprintf.patch \
+ file://ucarp.init \
+ file://vip-001.conf.example \
+ file://vip-common.conf \
+ file://vip-up.sh \
+ file://vip-down.sh \
+ file://ucarp.service \
+ "
+
+SRC_URI[md5sum] = "e3caa733316a32c09e5d3817617e9145"
+SRC_URI[sha256sum] =
"f3cc77e28481fd04f62bb3d4bc03104a97dd316c80c0ed04ad7be24b544112f3"
+
+inherit autotools gettext systemd
+
+DEPENDS = "libpcap"
+
+SYSTEMD_SERVICE_${PN} = "ucarp.service"
+SYSTEMD_AUTO_ENABLE = "disable"
+
+EXTRA_OECONF += "--sysconfdir=${sysconfdir}/${BPN}"
+
+# fix the perms for config.rpath
+do_configure_prepend() {
+ chmod 755 ${S}/config.rpath
+}
+
+do_install_append() {
+ sed -i -e 's#\(UPSCRIPT=\).*#\1${libexecdir}/vip-up.sh#' \
+ -e 's#\(DOWNSCRIPT=\).*#\1${libexecdir}/vip-down.sh#'
${WORKDIR}/ucarp.init
+
+ install -D -m 0755 ${WORKDIR}/ucarp.init ${D}${sysconfdir}/init.d/ucarp
+
+ # For systemd
+ if ${@bb.utils.contains('DISTRO_FEATURES', 'systemd', 'true', 'false',
d)}; then
+ install -D -m 0755 ${WORKDIR}/ucarp.init ${D}${libexecdir}/ucarp
+ install -D -m 0644 ${WORKDIR}/ucarp.service
${D}${systemd_system_unitdir}/ucarp.service
+ sed -i -e 's,@LIBEXECDIR@,${libexecdir},g'
${D}${systemd_system_unitdir}/ucarp.service
+ fi
+
+ install -m 0755 -d ${D}${sysconfdir}/ucarp
+ install -m 0600 ${WORKDIR}/vip-001.conf.example
${D}${sysconfdir}/ucarp/vip-001.conf.example
+ install -m 0600 ${WORKDIR}/vip-common.conf
${D}${sysconfdir}/ucarp/vip-common.conf
+
+ install -m 0755 -d ${D}${libexecdir}
+ install -m 0700 ${WORKDIR}/vip-up.sh ${D}${libexecdir}/vip-up.sh
+ install -m 0700 ${WORKDIR}/vip-down.sh ${D}${libexecdir}/vip-down.sh
+}
--
2.7.4
--
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