From c504204de548d45a0fd0e84ba22e29f94e670dbc Mon Sep 17 00:00:00 2001

From: Harald Hoyer <harald@redhat.com>

Date: Tue, 22 Jul 2014 11:03:56 +0200

Subject: [PATCH] network: add rd.route parameter

(cherry picked from commit 7b46244bb94e3dfd635a8d222044ae7fc920240d)

---

 dracut.cmdline.7.asc             | 15 +++++++++++++-

 modules.d/40network/net-lib.sh   | 42 ++++++++++++++++++++++++++++++++++++++++

 modules.d/45ifcfg/write-ifcfg.sh |  3 +++

 3 files changed, 59 insertions(+), 1 deletion(-)

diff --git a/dracut.cmdline.7.asc b/dracut.cmdline.7.asc

index 24bf4491..bce86084 100644

--- a/dracut.cmdline.7.asc

+++ b/dracut.cmdline.7.asc

@@ -489,6 +489,19 @@ WARNING: Do **not** use the default kernel naming scheme for the interface name,

 as it can conflict with the kernel names. So, don't use "eth[0-9]+" for the

 interface name. Better name it "bootnet" or "bluesocket".

+**rd.route=**__<net>__/__<netmask>__:__<gateway>__[:__<interface>__]::

+    Add a static route with route options, which are separated by a colon.

+    IPv6 addresses have to be put in brackets.

++

+[listing]

+.Example

+--

+    rd.route=192.168.200.0/24:192.168.100.222:ens10

+    rd.route=192.168.200.0/24:192.168.100.222

+    rd.route=192.168.200.0/24::ens10

+    rd.route=[2001:DB8:3::/8]:[2001:DB8:2::1]:ens10

+--

+

 **bootdev=**__<interface>__::

     specify network interface to use routing and netroot information from.

     Required if multiple ip= lines are used.

@@ -536,7 +549,7 @@ NFS

 ~~~

 **root=**\[_<server-ip>_:]__<root-dir>__[:__<nfs-options>__]::

     mount nfs share from <server-ip>:/<root-dir>, if no server-ip is given, use

-    dhcp next_server. if server-ip is an IPv6 address it has to be put in

+    dhcp next_server. If server-ip is an IPv6 address it has to be put in

     brackets, e.g. [2001:DB8::1]. NFS options can be appended with the prefix

     ":" or "," and are seperated by ",".

diff --git a/modules.d/40network/net-lib.sh b/modules.d/40network/net-lib.sh

index 90337f3c..c8f92048 100755

--- a/modules.d/40network/net-lib.sh

+++ b/modules.d/40network/net-lib.sh

@@ -89,6 +89,7 @@ ifdown() {

 setup_net() {

     local netif="$1" f="" gw_ip="" netroot_ip="" iface="" IFACES=""

+    local _p

     [ -e /tmp/net.$netif.did-setup ] && return

     [ -e /sys/class/net/$netif/address ] && \

         [ -e /tmp/net.$(cat /sys/class/net/$netif/address).did-setup ] && return

@@ -103,6 +104,20 @@ setup_net() {

     [ -e /tmp/net.$netif.resolv.conf ] && \

         cp -f /tmp/net.$netif.resolv.conf /etc/resolv.conf

+    # add static route

+    for _p in $(getargs rd.route); do

+        route_to_var "$_p" || continue

+        [ -n "$route_dev" ] && [ "$route_dev" != "$netif"] && continue

+        ip route add "$route_mask" ${route_gw:+via "$route_gw"} ${route_dev:+dev "$route_dev"}

+        if strstr ":" "$route_mask"; then

+            printf -- "%s\n" "$route_mask ${route_gw:+via $route_gw} ${route_dev:+dev $route_dev}" \

+                > /tmp/net.route6."$netif"

+        else

+            printf -- "%s\n" "$route_mask ${route_gw:+via $route_gw} ${route_dev:+dev $route_dev}" \

+                > /tmp/net.route."$netif"

+        fi

+    done

+

     # Handle STP Timeout: arping the default gateway.

     # (or the root server, if a) it's local or b) there's no gateway.)

     # Note: This assumes that if no router is present the

@@ -400,6 +415,33 @@ ip_to_var() {

     fi

 }

+route_to_var() {

+    local v=${1}:

+    local i

+    set --

+    while [ -n "$v" ]; do

+        if [ "${v#\[*:*:*\]:}" != "$v" ]; then

+            # handle IPv6 address

+            i="${v%%\]:*}"

+            i="${i##\[}"

+            set -- "$@" "$i"

+            v=${v#\[$i\]:}

+        else

+            set -- "$@" "${v%%:*}"

+            v=${v#*:}

+        fi

+    done

+

+    unset route_mask route_gw route_dev

+    case $# in

+        2)  [ -n "$1" ] && route_mask="$1"; [ -n "$2" ] && route_gw="$2"

+            return 0;;

+        3)  [ -n "$1" ] && route_mask="$1"; [ -n "$2" ] && route_gw="$2"; [ -n "$3" ] && route_dev="$3"

+            return 0;;

+        *)  return 1;;

+    esac

+}

+

 parse_ifname_opts() {

     local IFS=:

     set $1

diff --git a/modules.d/45ifcfg/write-ifcfg.sh b/modules.d/45ifcfg/write-ifcfg.sh

index fb388bcb..5e333e45 100755

--- a/modules.d/45ifcfg/write-ifcfg.sh

+++ b/modules.d/45ifcfg/write-ifcfg.sh

@@ -268,6 +268,9 @@ for netup in /tmp/net.*.did-setup ; do

         echo "DNS${i}=\"${ns}\"" >> /tmp/ifcfg/ifcfg-$netif

         i=$((i+1))

     done

+

+    [ -f /tmp/net.route6."$netif" ] && cp /tmp/net.route6."$netif" /tmp/ifcfg/route6-"$netif"

+    [ -f /tmp/net.route."$netif" ] && cp /tmp/net.route."$netif" /tmp/ifcfg/route-"$netif"

 done

 # Pass network opts