Tue Aug 13 01:31:08 PDT 2013

5 files changed, 234 insertions, 0 deletions

diff --git a/community/ucarp/01-fix-getopt.patch b/community/ucarp/01-fix-getopt.patch
new file mode 100644
index 000000000..9a4b21eeb
--- /dev/null
+++ b/community/ucarp/01-fix-getopt.patch
@@ -0,0 +1,11 @@
+--- ucarp-1.5.1.orig/src/ucarp_p.h
++++ ucarp-1.5.1/src/ucarp_p.h
+@@ -1,7 +1,7 @@
+ #ifndef __CARP_P_H__
+ #define __CARP_P_H__ 1
+
+-static const char *GETOPT_OPTIONS = "i:s:v:p:Pa:hb:k:x:nu:d:r:zf:BoSM";
++static const char *GETOPT_OPTIONS = "i:s:v:p:Pa:hb:k:x:nu:d:r:zf:Bo:SM";
+
+ static struct option long_options[] = {
+     { "interface", 1, NULL, 'i' },
diff --git a/community/ucarp/02-fix-downscript-on-error.c b/community/ucarp/02-fix-downscript-on-error.c
new file mode 100644
index 000000000..08af568b4
--- /dev/null
+++ b/community/ucarp/02-fix-downscript-on-error.c
@@ -0,0 +1,12 @@
+--- ucarp-1.5.1.orig/src/carp.c
++++ ucarp-1.5.1/src/carp.c
+@@ -843,6 +843,9 @@
+         if ((pfds[0].revents & (POLLERR | POLLHUP)) != 0) {
+             logfile(LOG_ERR, _("exiting: pfds[0].revents = %d"),
+                     pfds[0].revents);
++            if ((sc.sc_state != BACKUP) && (shutdown_at_exit != 0)) {
++                (void) spawn_handler(dev_desc_fd, downscript);
++            }
+             break;
+         }
+         if (gettimeofday(&now, NULL) != 0) {
diff --git a/community/ucarp/PKGBUILD b/community/ucarp/PKGBUILD
new file mode 100644
index 000000000..467613303
--- /dev/null
+++ b/community/ucarp/PKGBUILD
@@ -0,0 +1,56 @@
+# $Id: PKGBUILD 90534 2013-05-13 00:32:20Z seblu $
+# Maintainer: Sébastien Luttringer
+
+pkgname=ucarp
+pkgver=1.5.2
+pkgrel=5
+pkgdesc='Userspace implementation of the CARP protocol'
+arch=('i686' 'x86_64')
+url='http://www.ucarp.org/project/ucarp'
+license=('GPL2')
+depends=('libpcap')
+optdepends=('iproute2')
+source=("http://download.pureftpd.org/pub/$pkgname/$pkgname-$pkgver.tar.gz"
+        "$pkgname.service"
+        "$pkgname.8"
+        '01-fix-getopt.patch'
+        '02-fix-downscript-on-error.c')
+md5sums=('e3caa733316a32c09e5d3817617e9145'
+         'fdc72a8d6f89224b40c78705df1f46f9'
+         '2ccfdc464b88c437b38bd0324cf1fef3'
+         '3f20699aaf2ef8139dcd337f1e7f06ab'
+         '09d26233c37956cf08e629554a91b8cd')
+
+prepare() {
+  # Apply patches
+  patch -N -p1 -d $pkgname-$pkgver < 01-fix-getopt.patch
+  patch -N -p1 -d $pkgname-$pkgver < 02-fix-downscript-on-error.c
+}
+
+build() {
+  cd $pkgname-$pkgver
+  ./configure --prefix=/usr --sbindir=/usr/bin
+  make
+
+}
+
+package() {
+  pushd $pkgname-$pkgver
+  make DESTDIR="$pkgdir" install
+  # install examples files
+  install -D -m 644 examples/linux/vip-down.sh \
+    "$pkgdir/usr/share/doc/$pkgname/examples/vip-down.sh"
+  install -D -m 644 examples/linux/vip-up.sh \
+    "$pkgdir/usr/share/doc/$pkgname/examples/vip-up.sh"
+  # install README
+  install -D -m 644 README "$pkgdir/usr/share/doc/$pkgname/README"
+  popd
+  # add manpage
+  install -D -m 644 $pkgname.8 "${pkgdir}/usr/share/man/man8/$pkgname.8"
+  # systemd
+  install -D -m 644 $pkgname.service \
+    "${pkgdir}/usr/lib/systemd/system/$pkgname.service"
+
+}
+
+# vim:set ts=2 sw=2 et:
diff --git a/community/ucarp/ucarp.8 b/community/ucarp/ucarp.8
new file mode 100644
index 000000000..7eb19ddc0
--- /dev/null
+++ b/community/ucarp/ucarp.8
@@ -0,0 +1,147 @@
+.TH "UCARP" "8" 
+.SH "NAME" 
+ucarp \(em Automatic IP failover 
+.SH "SYNOPSIS" 
+.PP 
+\fBucarp\fR [\fB-i, \-\-interface=\fIINTERFACE\fR\fP]  [\fB-s, \-\-srcip=\fIIPADDRESS\fR\fP]  
+.br 
+[\fB-v, \-\-vhid=\fIVHID\fR\fP]  [\fB-p, \-\-pass=\fIPASSWORD\fR\fP]  [\fB-o, \-\-passfile=\fIPASSFILE\fR\fP]  
+.br 
+[\fB-P, \-\-preempt\fP]  [\fB-n, \-\-neutral\fP]  [\fB-a, \-\-addr=\fIIPADDR\fR\fP]  [\fB-h, \-\-help\fP]  
+.br 
+[\fB-b, \-\-advbase=\fISECS\fR\fP]  [\fB-k, \-\-advskew=\fISKEW\fR\fP]  [\fB-u, \-\-upscript=\fISCRIPT\fR\fP]  
+.br 
+[\fB-d, \-\-downscript=\fISCRIPT\fR\fP]  [\fB-r, \-\-deadratio=\fIRATIO\fR\fP]  [\fB-z, \-\-shutdown\fP]  
+.br 
+[\fB-B, \-\-daemonize\fP]  [\fB-f, \-\-facility=\fIFACILITY\fR\fP]  [\fB-x, \-\-xparam \fIPARAM\fR\fP]  
+.br 
+[\fB-S, \-\-ignoreifstate\fP]  [\fB-M, \-\-nomcast\fP]  
+.SH "DESCRIPTION" 
+.PP 
+ucarp allows a pair of hosts to share common IP addresses in 
+order to provide automatic failover of an address from one machine to  
+another. It is a portable userland implementation of the secure and  
+patent-free Common Address Redundancy Protocol, (CARP), OpenBSD's 
+alternative to VRRP. 
+.SH "OPTIONS" 
+.PP 
+ucarp supports the following command line options: 
+.IP "\fB-i \fIINTERFACE\fR\fP\fB \-\-interface=\fIINTERFACE\fR\fP" 10 
+The network interface to bind to. 
+.IP "\fB-s \fIIPADDRESS\fR\fP\fB \-\-srcip=\fIIPADDRESS\fR\fP" 10 
+The persistent source address, (real IP), associated with this 
+interface. 
+.IP "\fB-v \fIVHID\fR\fP\fB \-\-vhid=\fIVHID\fR\fP" 10 
+The id of the virtual server [1-255]. 
+.IP "\fB-p \fIPASSWORD\fR\fP\fB \-\-pass=\fIPASSWORD\fR\fP" 10 
+The shared password, (this gets encrypted and is not sent in the 
+clear). 
+.IP "\fB-o \fIPASSFILE\fR\fP\fB \-\-passfile=\fIPASSFILE\fR\fP" 10 
+File to read the shared password from. The file specified 
+should contain the password on the first line of the file. 
+.IP "\fB-P \fP\fB\-\-preempt\fP" 10 
+Turn on preemptive failover. This causes an instance of  
+ucarp to assume master status right immediately. 
+.IP "\fB-n \fP\fB\-\-neutral\fP" 10 
+Do not run the downscript on startup when the  
+initial state is backup. 
+.IP "\fB-a \fIIPADDRESS\fR\fP\fB \-\-addr=\fIIPADDRESS\fR\fP" 10 
+The IP address of the virtual server. 
+.IP "\fB-h \fP\fB\-\-help\fP" 10 
+Display a brief summary of the command line options. 
+.IP "\fB-b \fISECONDS\fR\fP\fB \-\-advbase=\fISECONDS\fR\fP" 10 
+Interval in seconds that advertisements will occur, (defaults  
+to 1 second). 
+.IP "\fB-k \fISKEW\fR\fP\fB \-\-advskew=\fISKEW\fR\fP" 10 
+Advertisement skew [1-255], (defaults to 0). 
+.IP "\fB-u \fICOMMAND\fR\fP\fB \-\-upscript=\fICOMMAND\fR\fP" 10 
+Specifies the command to run after ucarp has successfully 
+become master, the interface name gets passed as an argument.  
+Typically a script used to bring up the virtual address, log the 
+result, add routes, clear arp cache entries, etc. 
+.IP "\fB-d \fICOMMAND\fR\fP\fB \-\-downscript=\fICOMMAND\fR\fP" 10 
+Specifies the command that is run after ucarp has 
+transitioned to the backup state, the interface name is passed 
+as an argument. This is typically a script used to bring down  
+the virtual interface, log the action, remove routes, etc. 
+.IP "\fB-r \fIRATIO\fR\fP\fB \-\-deadratio=\fIRATIO\fR\fP" 10 
+Ratio used by the backup to determine how long to wait for an 
+unresponsive master before considering it dead. 
+.IP "\fB-z\fP\fB \-\-shutdown\fP" 10 
+Use of this command causes the command specified by the \-d  
+argument to be invoked when ucarp shuts down. 
+.IP "\fB-B\fP\fB \-\-daemonize\fP" 10 
+Causes ucarp to detach from the terminal and run in the 
+background as a daemon. 
+.IP "\fB-f\fP\fB \-\-facility\fP" 10 
+Set the syslog facility, defaults to daemon. 
+.IP "\fB-x \fIPARAMETER\fR\fP\fB \-\-xparam=\fIPARAMETER\fR\fP" 10 
+Specify an extra parameter to be supplied to the up/down 
+scripts. 
+.IP "\fB-S\fP\fB \-\-ignoreifstate\fP" 10 
+Ignore unplugged network cables. This option is useful when 
+ucarp nodes are connected with a crossover cable. Without 
+this option the master will transition to backup when the other 
+node is powered down, as it no longer has a link (NO-CARRIER). 
+ 
+.IP "\fB-M\fP\fB \-\-nomcast\fP" 10 
+Use broadcast instead of multicast advertisements. 
+.SH "EXAMPLES" 
+.PP 
+A host with a real IP of 10.1.1.10 configured to be the master 
+in a preemptive configuration with a virtual IP of 10.1.1.252. 
+.PP 
+.nf 
+\fB    \fPucarp \-i eth0 \-s 10.1.1.10 \-v 10 \-p secret \-a 10.1.1.252 \\ 
+\fB    \fP\-\-upscript=/usr/local/sbin/vip-up.sh \-\-downscript=/usr/local/sbin/vip-down.sh \-P 
+.fi 
+.PP 
+The backup might be configured something like this. 
+.PP 
+.nf 
+\fB    \fPucarp \-i eth0 \-s 10.1.1.11 \-v 10 \-p secret \-a 10.1.1.252 \\ 
+\fB    \fP\-\-upscript=/usr/local/sbin/vip-up.sh \-\-downscript=/usr/local/sbin/vip-down.sh 
+.fi 
+.PP 
+A machine with a real IP of 192.168.1.19 is the preferred master for 
+a virtual IP of 10.1.12.7, broadcasts are sent every 5 seconds. 
+.PP 
+.nf 
+\fB    \fPucarp \-b 5 \-s 192.168.1.19 \-v 27 \-p badpass \-a 10.1.12.7 \\ 
+\fB    \fP-u /usr/local/sbin/vip-up.sh \-d /usr/local/sbin/vip-down.sh \-z 
+.fi 
+.PP 
+The hot standby with an IP of 192.168.1.20 uses the following  
+command, (note the advskew of 50 putting it at a disadvantage and making 
+the first machine preferred). 
+.PP 
+.nf 
+\fB    \fPucarp \-b 5 \-k 50 \-s 192.168.1.20 \-v 27 \-p badpass \-a 10.1.12.7 \\ 
+\fB    \fP-u /usr/local/sbin/vip-up.sh \-d /usr/local/sbin/vip-down.sh \-z 
+.fi 
+.SH "SIGNALS" 
+.PP 
+Sending the ucarp process a SIGUSR1 will have it log a status 
+line to syslog, eg "Sep 13 12:59:56 localhost ucarp[2654]: [INFO] 
+MASTER on eth0 id 1" or "Sep 13 13:00:25 localhost ucarp[2644]: [INFO] 
+BACKUP on eth0 id 1" 
+.PP 
+Sending the ucarp process a SIGUSR2 will cause it to demote itself 
+from master to backup, pause 3 seconds, then proceed as usual to listen 
+for other masters, and promote itself if necessary. This could be useful 
+if you wish another node to take over master. 
+ 
+.SH "AUTHOR" 
+.PP 
+ucarp was written by Frank Denis, <j@ucarp.org>. 
+.PP 
+This manual page was written by Eric Evans <eevans@debian.org> 
+for \fBDebian\fP and adapted to \fBArchlinux\fP 
+by Sébastien Luttringer <seblu@archlinux.org>.  Permission is 
+granted to copy, distribute and/or modify this document under 
+the terms of the GNU General Public License, Version 2 or any  
+later version published by the Free Software Foundation. 
+ 
+.PP 
+On Archlinux systems, the complete text of the GNU General Public 
+License can be found in /usr/share/licenses/common/GPL. 
diff --git a/community/ucarp/ucarp.service b/community/ucarp/ucarp.service
new file mode 100644
index 000000000..2ff694d2c
--- /dev/null
+++ b/community/ucarp/ucarp.service
@@ -0,0 +1,8 @@
+[Unit]
+Description=UCARP daemon
+
+[Service]
+ExecStart=/usr/bin/ucarp
+
+[Install]
+WantedBy=multi-user.target