1 #!/sbin/sh
2 #
3 # The contents of this file are subject to the terms of the
4 # Common Development and Distribution License (the "License").
5 # You may not use this file except in compliance with the License.
6 #
7 # You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
8 # or http://www.opensolaris.org/os/licensing.
9 # See the License for the specific language governing permissions
10 # and limitations under the License.
11 #
12 # When distributing Covered Code, include this CDDL HEADER in each
13 # file and include the License file at usr/src/OPENSOLARIS.LICENSE.
14 # If applicable, add the following below this CDDL HEADER, with the
15 # fields enclosed by brackets "[]" replaced with your own identifying
16 # information: Portions Copyright [yyyy] [name of copyright owner]
17 #
18
19 #
20 # Copyright (c) 1999, 2010, Oracle and/or its affiliates. All rights reserved.
21 # Copyright 2018 Nexenta Systems, Inc.
22 #
23
24 # This script configures IP routing.
25
26 . /lib/svc/share/smf_include.sh
27
28 #
29 # In a shared-IP zone we need this service to be up, but all of the work
30 # it tries to do is irrelevant (and will actually lead to the service
31 # failing if we try to do it), so just bail out.
32 # In the global zone and exclusive-IP zones we proceed.
33 #
34 smf_configure_ip || exit $SMF_EXIT_OK
35
36 #
37 # If routing.conf file is in place, and has not already been read in
38 # by previous invokation of routeadm, legacy configuration is upgraded
39 # by this call to "routeadm -u". This call is also needed when
40 # a /var/svc/profile/upgrade file is found, as it may contain routeadm commands
41 # which need to be applied. Finally, routeadm starts in.ndpd by
42 # enabling the ndp service (in.ndpd), which is required for IPv6 address
43 # autoconfiguration. It would be nice if we could do this in
44 # network/loopback, but since the SMF backend is read-only at that
45 # point in boot, we cannot.
46 #
47 /sbin/routeadm -u
48
49 #
50 # Configure default IPv4 routers using the local "/etc/defaultrouter"
51 # configuration file. The file can contain the hostnames or IP
52 # addresses of one or more default routers. If hostnames are used,
53 # each hostname must also be listed in the local "/etc/hosts" file
54 # because NIS is not running at the time that this script is
55 # run. Each router name or address is listed on a single line by
56 # itself in the file. Anything else on that line after the router's
57 # name or address is ignored. Lines that begin with "#" are
58 # considered comments and ignored.
59 #
60 # The default routes listed in the "/etc/defaultrouter" file will
61 # replace those added by the kernel during diskless booting. An
62 # empty "/etc/defaultrouter" file will cause the default route
63 # added by the kernel to be deleted.
64 #
65 # Note that the default router file is ignored if we received routes
66 # from a DHCP server. Our policy is to always trust DHCP over local
67 # administration.
68 #
69 smf_netstrategy
70
71 if [ "$_INIT_NET_STRATEGY" = "dhcp" ] && \
72 [ -n "`/sbin/dhcpinfo Router`" ]; then
73 defrouters=`/sbin/dhcpinfo Router`
74 elif [ -f /etc/defaultrouter ]; then
75 defrouters=`/usr/bin/grep -v \^\# /etc/defaultrouter | \
76 /usr/bin/awk '{print $1}'`
77 if [ -n "$defrouters" ]; then
78 #
79 # We want the default router(s) listed in
80 # /etc/defaultrouter to replace the one added from the
81 # BOOTPARAMS WHOAMI response but we must avoid flushing
82 # the last route between the running system and its
83 # /usr file system.
84 #
85
86 # First, remember the original route.
87 shift $#
88 set -- `/usr/bin/netstat -rn -f inet | \
89 /usr/bin/grep '^default'`
90 route_IP="$2"
91
92 #
93 # Next, add those from /etc/defaultrouter. While doing
94 # this, if one of the routes we add is for the route
95 # previously added as a result of the BOOTPARAMS
96 # response, we will see a message of the form:
97 # "add net default: gateway a.b.c.d: entry exists"
98 #
99 do_delete=yes
100 for router in $defrouters; do
101 route_added=`/usr/sbin/route -n add default \
102 -gateway $router`
103 res=$?
104 set -- $route_added
105 [ $res -ne 0 -a "$5" = "$route_IP:" ] && do_delete=no
106 done
107
108 #
109 # Finally, delete the original default route unless it
110 # was also listed in the defaultrouter file.
111 #
112 if [ -n "$route_IP" -a $do_delete = yes ]; then
113 /usr/sbin/route -n delete default \
114 -gateway $route_IP >/dev/null
115 fi
116 else
117 /usr/sbin/route -fn > /dev/null
118 fi
119 fi
120
121 #
122 # Use routeadm(1M) to configure forwarding and launch routing daemons
123 # for IPv4 and IPv6 based on preset values. These settings only apply
124 # to the global zone. For IPv4 dynamic routing, the system will default
125 # to disabled.
126 #
127
128 #
129 # The routeadm/ipv4-routing-set property is true if the administrator
130 # has run "routeadm -e/-d ipv4-routing". If not, we revert to the
131 # appropriate defaults. We no longer run "routeadm -u" on every boot
132 # however, as persistent daemon state is now controlled by SMF.
133 #
134 ipv4_routing_set=`/usr/bin/svcprop -p routeadm/ipv4-routing-set $SMF_FMRI`
135
136 #
137 # Set default value for ipv4-routing to disabled. If routeadm -e/-d
138 # has not yet been run by the administrator, we apply this default.
139 # The -b option is project-private and informs routeadm not
140 # to treat the enable as administrator-driven.
141 #
142 /usr/sbin/svccfg -s $SMF_FMRI \
143 setprop routeadm/default-ipv4-routing = false
144 if [ "$ipv4_routing_set" = "false" ]; then
145 /sbin/routeadm -b -d ipv4-routing -u
146 fi
147
148 #
149 # See if static routes were created by install. If so, they were created
150 # under /etc/svc/volatile. Copy them into their proper place.
151 #
152 if [ -f /etc/svc/volatile/etc/inet/static_routes ]; then
153 echo "Installing persistent routes"
154 if [ -f /etc/inet/static_routes ]; then
155 cat /etc/svc/volatile/etc/inet/static_routes | grep -v '^#' \
156 >> /etc/inet/static_routes
157 else
158 cp /etc/svc/volatile/etc/inet/static_routes \
159 /etc/inet/static_routes
160 fi
161 /usr/bin/rm /etc/svc/volatile/etc/inet/static_routes
162 fi
163
164 #
165 # Read /etc/inet/static_routes and add each route.
166 #
167 if [ -f /etc/inet/static_routes ]; then
168 echo "Adding persistent routes:"
169 /usr/bin/egrep -v "^(#|$)" /etc/inet/static_routes | while read line; do
170 /usr/sbin/route add $line
171 done
172 fi
173
174 # Clear exit status.
175 exit $SMF_EXIT_OK