OpenVSwitch

Open vSwitch

Думаю что за пол года тут все порядком устарело

Cборка под CentOS

• обновить autoconf
  • ftp://ftp.pbone.net/mirror/archive.fedoraproject.org/fedora/linux/releases/14/Fedora/x86_64/os/Packages/m4-1.4.14-1.fc14.x86_64.rpm
  • ftp://rpmfind.net/linux/fedora/linux/releases/18/Everything/i386/os/Packages/a/autoconf-2.69-3.fc18.noarch.rpm

Скачать исходники

• • wget http://openvswitch.org/releases/openvswitch-1.9.0.tar.gz
  • tar xvf openvswitch-1.9.0.tar.gz
  • cd openvswitch-1.9.0
  • wget -O - "http://openvswitch.org/cgi-bin/gitweb.cgi?p=openvswitch;a=patch;h=7aaeb9d4e1a9219c48d981230f2738bbdb7abda7" | patch -p1

На всякий случай патч - если будетнедоступен

cat p1.patch
From 7aaeb9d4e1a9219c48d981230f2738bbdb7abda7 Mon Sep 17 00:00:00 2001
From: Jesse Gross <jesse@nicira.com>
Date: Tue, 12 Mar 2013 11:34:29 -0700
Subject: [PATCH] datapath: Check for Centos 6.4 backports.

Centos 6.4 backported a number of additional functions so our existing
versions started causing conflicts.

Reported-by: Denis Iskandarov <d.iskandarov@gmail.com>
Signed-off-by: Jesse Gross <jesse@nicira.com>
---
 acinclude.m4                                      |    5 +++++
 datapath/linux/compat/include/linux/etherdevice.h |    2 ++
 datapath/linux/compat/include/linux/if_vlan.h     |    2 +-
 datapath/linux/compat/include/linux/skbuff.h      |    2 +-
 4 files changed, 9 insertions(+), 2 deletions(-)

diff --git a/acinclude.m4 b/acinclude.m4
index 02dc952..f0610c9 100644
--- a/acinclude.m4
+++ b/acinclude.m4
@@ -215,6 +215,10 @@ AC_DEFUN([OVS_CHECK_LINUX_COMPAT], [

   OVS_GREP_IFELSE([$KSRC/include/linux/err.h], [ERR_CAST])

+  OVS_GREP_IFELSE([$KSRC/include/linux/etherdevice.h], [eth_hw_addr_random])
+
+  OVS_GREP_IFELSE([$KSRC/include/linux/if_vlan.h], [vlan_set_encap_proto])
+
   OVS_GREP_IFELSE([$KSRC/include/linux/in.h], [ipv4_is_multicast])

   OVS_GREP_IFELSE([$KSRC/include/linux/netdevice.h], [dev_disable_lro])
@@ -249,6 +253,7 @@ AC_DEFUN([OVS_CHECK_LINUX_COMPAT], [
                   [OVS_DEFINE([HAVE_SKB_WARN_LRO])])
   OVS_GREP_IFELSE([$KSRC/include/linux/skbuff.h], [consume_skb])
   OVS_GREP_IFELSE([$KSRC/include/linux/skbuff.h], [skb_frag_page])
+  OVS_GREP_IFELSE([$KSRC/include/linux/skbuff.h], [skb_reset_mac_len])

   OVS_GREP_IFELSE([$KSRC/include/linux/string.h], [kmemdup], [],
                   [OVS_GREP_IFELSE([$KSRC/include/linux/slab.h], [kmemdup])])
diff --git a/datapath/linux/compat/include/linux/etherdevice.h b/datapath/linux/compat/include/linux/etherdevice.h
index 7f04c96..d1cc79c 100644
--- a/datapath/linux/compat/include/linux/etherdevice.h
+++ b/datapath/linux/compat/include/linux/etherdevice.h
@@ -4,6 +4,7 @@
 #include <linux/version.h>
 #include_next <linux/etherdevice.h>

+#ifndef HAVE_ETH_HW_ADDR_RANDOM
 #if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,36)
 static inline void eth_hw_addr_random(struct net_device *dev)
 {
@@ -15,5 +16,6 @@ static inline void eth_hw_addr_random(struct net_device *dev)
 	dev_hw_addr_random(dev, dev->dev_addr);
 }
 #endif
+#endif

 #endif
diff --git a/datapath/linux/compat/include/linux/if_vlan.h b/datapath/linux/compat/include/linux/if_vlan.h
index dc4b15e..b8b1961 100644
--- a/datapath/linux/compat/include/linux/if_vlan.h
+++ b/datapath/linux/compat/include/linux/if_vlan.h
@@ -55,7 +55,7 @@ static inline struct sk_buff *__vlan_put_tag(struct sk_buff *skb, u16 vlan_tci)
 #define VLAN_TAG_PRESENT	VLAN_CFI_MASK
 #endif

-#if LINUX_VERSION_CODE < KERNEL_VERSION(3,3,0)
+#ifndef HAVE_VLAN_SET_ENCAP_PROTO
 static inline void vlan_set_encap_proto(struct sk_buff *skb, struct vlan_hdr *vhdr)
 {
 	__be16 proto;
diff --git a/datapath/linux/compat/include/linux/skbuff.h b/datapath/linux/compat/include/linux/skbuff.h
index 7fbe9d8..d485b39 100644
--- a/datapath/linux/compat/include/linux/skbuff.h
+++ b/datapath/linux/compat/include/linux/skbuff.h
@@ -245,7 +245,7 @@ static inline struct page *skb_frag_page(const skb_frag_t *frag)
 }
 #endif

-#if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,40)
+#ifndef HAVE_SKB_RESET_MAC_LEN
 static inline void skb_reset_mac_len(struct sk_buff *skb)
 {
 	skb->mac_len = skb->network_header - skb->mac_header;
--
1.7.1

• ./boot.sh
• ./configure
• make dist

$ ls | grep tar.gz
openvswitch-1.9.0.tar.gz

Для сборки кроме явно прописанных зависимостей понадобиться пакет

• redhat-rpm-config.noarch

иначе возникает ошибка

error: line 24: Dependency tokens must begin with alpha-numeric, '_' or '/': BuildRequires:  %kernel_module_package_buildreqs

rpmbuild -bb rhel/openvswitch.spec
rpmbuild -bb rhel/openvswitch-kmod-rhel6.spec

 yum install ~/rpmbuild/RPMS/x86_64/openvswitch-1.9.0-1.x86_64.rpm ~/rpmbuild/RPMS/x86_64/kmod-openvswitch-1.9.0-1.el6.x86_64.rpm

Проверка работы

У меня уже был бридж - нужно выгрузить и заблеклистить старый модуль

rrmod bridge

cat /etc/modprobe.d/blacklist.conf
 ... skipped ...
blacklist bridge
...

Все описания настроек можно найти в readme в /usr/src/openvswitch-1.9.0/rhel Я же приведу простой пример - бридж из одного интерфейса
ifcfg-br0

DEVICE="br0"
NM_CONTROLLED="no"
ONBOOT="yes"
TYPE="OVSBridge"
IPADDR=192.168.57.99
NETMASK=255.255.255.0
NETWORK=192.168.57.0
BROADCAST=192.168.57.255
DEVICETYPE=ovs

ifcfg-eth0

DEVICE="eth0"
NM_CONTROLLED="no"
ONBOOT="yes"
OVS_BRIDGE=br0
DEVICETYPE=ovs
TYPE=OVSPort
BOOTPROTO=none
HOTPLUG=no

Ссылки

• http://openvswitch.org/support/
• http://www.xakep.ru/post/59656/
• http://www.gentoo.ru/node/26822