/usr/src/cmd/svc/milestone/net-routing-setup
Shell | 214 lines | 74 code | 16 blank | 124 comment | 18 complexity | e74a0762e64b8482233551298ee8bace MD5 | raw file
Possible License(s): LGPL-3.0, LGPL-2.0, BSD-3-Clause-No-Nuclear-License-2014, AGPL-1.0, AGPL-3.0, BSD-3-Clause, GPL-3.0, LGPL-2.1, BSD-2-Clause, MPL-2.0-no-copyleft-exception, GPL-2.0, 0BSD
- #!/sbin/sh
- #
- # CDDL HEADER START
- #
- # The contents of this file are subject to the terms of the
- # Common Development and Distribution License (the "License").
- # You may not use this file except in compliance with the License.
- #
- # You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
- # or http://www.opensolaris.org/os/licensing.
- # See the License for the specific language governing permissions
- # and limitations under the License.
- #
- # When distributing Covered Code, include this CDDL HEADER in each
- # file and include the License file at usr/src/OPENSOLARIS.LICENSE.
- # If applicable, add the following below this CDDL HEADER, with the
- # fields enclosed by brackets "[]" replaced with your own identifying
- # information: Portions Copyright [yyyy] [name of copyright owner]
- #
- # CDDL HEADER END
- #
- #
- # Copyright (c) 1999, 2010, Oracle and/or its affiliates. All rights reserved.
- # This script configures IP routing.
- . /lib/svc/share/smf_include.sh
- #
- # In a shared-IP zone we need this service to be up, but all of the work
- # it tries to do is irrelevant (and will actually lead to the service
- # failing if we try to do it), so just bail out.
- # In the global zone and exclusive-IP zones we proceed.
- #
- smf_configure_ip || exit $SMF_EXIT_OK
- #
- # If routing.conf file is in place, and has not already been read in
- # by previous invokation of routeadm, legacy configuration is upgraded
- # by this call to "routeadm -u". This call is also needed when
- # a /var/svc/profile/upgrade file is found, as it may contain routeadm commands
- # which need to be applied. Finally, routeadm starts in.ndpd by
- # enabling the ndp service (in.ndpd), which is required for IPv6 address
- # autoconfiguration. It would be nice if we could do this in
- # network/loopback, but since the SMF backend is read-only at that
- # point in boot, we cannot.
- #
- /sbin/routeadm -u
- #
- # Are we routing dynamically? routeadm(1M) reports this in the
- # "current" values of ipv4/6-routing - if either are true, we are running
- # routing daemons (or at least they are enabled to run).
- #
- dynamic_routing_test=`/sbin/routeadm -p | \
- nawk '/^ipv[46]-routing [.]*/ { print $2 }' | /usr/bin/grep "current=enabled"`
- if [ -n "$dynamic_routing_test" ]; then
- dynamic_routing="true"
- fi
- #
- # Configure default IPv4 routers using the local "/etc/defaultrouter"
- # configuration file. The file can contain the hostnames or IP
- # addresses of one or more default routers. If hostnames are used,
- # each hostname must also be listed in the local "/etc/hosts" file
- # because NIS is not running at the time that this script is
- # run. Each router name or address is listed on a single line by
- # itself in the file. Anything else on that line after the router's
- # name or address is ignored. Lines that begin with "#" are
- # considered comments and ignored.
- #
- # The default routes listed in the "/etc/defaultrouter" file will
- # replace those added by the kernel during diskless booting. An
- # empty "/etc/defaultrouter" file will cause the default route
- # added by the kernel to be deleted.
- #
- # Note that the default router file is ignored if we received routes
- # from a DHCP server. Our policy is to always trust DHCP over local
- # administration.
- #
- smf_netstrategy
- if [ "$_INIT_NET_STRATEGY" = "dhcp" ] && \
- [ -n "`/sbin/dhcpinfo Router`" ]; then
- defrouters=`/sbin/dhcpinfo Router`
- elif [ -f /etc/defaultrouter ]; then
- defrouters=`/usr/bin/grep -v \^\# /etc/defaultrouter | \
- /usr/bin/awk '{print $1}'`
- if [ -n "$defrouters" ]; then
- #
- # We want the default router(s) listed in
- # /etc/defaultrouter to replace the one added from the
- # BOOTPARAMS WHOAMI response but we must avoid flushing
- # the last route between the running system and its
- # /usr file system.
- #
- # First, remember the original route.
- shift $#
- set -- `/usr/bin/netstat -rn -f inet | \
- /usr/bin/grep '^default'`
- route_IP="$2"
- #
- # Next, add those from /etc/defaultrouter. While doing
- # this, if one of the routes we add is for the route
- # previously added as a result of the BOOTPARAMS
- # response, we will see a message of the form:
- # "add net default: gateway a.b.c.d: entry exists"
- #
- do_delete=yes
- for router in $defrouters; do
- route_added=`/usr/sbin/route -n add default \
- -gateway $router`
- res=$?
- set -- $route_added
- [ $res -ne 0 -a "$5" = "$route_IP:" ] && do_delete=no
- done
- #
- # Finally, delete the original default route unless it
- # was also listed in the defaultrouter file.
- #
- if [ -n "$route_IP" -a $do_delete = yes ]; then
- /usr/sbin/route -n delete default \
- -gateway $route_IP >/dev/null
- fi
- else
- /usr/sbin/route -fn > /dev/null
- fi
- else
- defrouters=
- fi
- #
- # Use routeadm(1M) to configure forwarding and launch routing daemons
- # for IPv4 and IPv6 based on preset values. These settings only apply
- # to the global zone. For IPv4 dynamic routing, the system will default
- # to disabled if a default route was previously added via BOOTP, DHCP,
- # or the /etc/defaultrouter file. routeadm also starts in.ndpd.
- #
- if [ "$dynamic_routing" != "true" ] && [ -z "$defrouters" ]; then
- #
- # No default routes were setup by "route" command above.
- # Check the kernel routing table for any other default
- # routes.
- #
- /usr/bin/netstat -rn -f inet | \
- /usr/bin/grep default >/dev/null 2>&1 && defrouters=yes
- fi
- #
- # The routeadm/ipv4-routing-set property is true if the administrator
- # has run "routeadm -e/-d ipv4-routing". If not, we revert to the
- # appropriate defaults. We no longer run "routeadm -u" on every boot
- # however, as persistent daemon state is now controlled by SMF.
- #
- ipv4_routing_set=`/usr/bin/svcprop -p routeadm/ipv4-routing-set $SMF_FMRI`
- if [ -z "$defrouters" ]; then
- #
- # Set default value for ipv4-routing to enabled. If routeadm -e/-d
- # has not yet been run by the administrator, we apply this default.
- # The -b option is project-private and informs routeadm not
- # to treat the enable as administrator-driven.
- #
- /usr/sbin/svccfg -s $SMF_FMRI \
- setprop routeadm/default-ipv4-routing = true
- if [ "$ipv4_routing_set" = "false" ]; then
- /sbin/routeadm -b -e ipv4-routing -u
- fi
- else
- #
- # Default router(s) have been found, so ipv4-routing default value
- # should be disabled. If routaedm -e/d has not yet been run by
- # the administrator, we apply this default. The -b option is
- # project-private and informs routeadm not to treat the disable as
- # administrator-driven.
- #
- /usr/sbin/svccfg -s $SMF_FMRI \
- setprop routeadm/default-ipv4-routing = false
- if [ "$ipv4_routing_set" = "false" ]; then
- /sbin/routeadm -b -d ipv4-routing -u
- fi
- fi
- #
- # See if static routes were created by install. If so, they were created
- # under /etc/svc/volatile. Copy them into their proper place.
- #
- if [ -f /etc/svc/volatile/etc/inet/static_routes ]; then
- echo "Installing persistent routes"
- if [ -f /etc/inet/static_routes ]; then
- cat /etc/svc/volatile/etc/inet/static_routes | grep -v '^#' \
- >> /etc/inet/static_routes
- else
- cp /etc/svc/volatile/etc/inet/static_routes \
- /etc/inet/static_routes
- fi
- /usr/bin/rm /etc/svc/volatile/etc/inet/static_routes
-
- fi
- #
- # Read /etc/inet/static_routes and add each route.
- #
- if [ -f /etc/inet/static_routes ]; then
- echo "Adding persistent routes:"
- /usr/bin/egrep -v "^(#|$)" /etc/inet/static_routes | while read line; do
- /usr/sbin/route add $line
- done
- fi
- # Clear exit status.
- exit $SMF_EXIT_OK