inital commit of 20040316
[openwrt/svn-archive/archive.git] / root / etc / networking.sh
1 #!/bin/sh
2 # OpenWrt Networking script
3 # $Id$
4 # Copyright (c) 2004 Mike Baker <mbm at alt.org>
5
6 # to debug:
7 # export DEBUG=echo
8
9 export PATH=/usr/bin:/bin:/usr/sbin:/sbin
10
11 # lookup an interface by mac address
12 mac2if () {
13 if=$(ifconfig -a | grep -i "$1" | grep -e "^eth" | awk '{print $1}')
14 echo $if
15 }
16
17 # allow env to override nvram
18 nvram_get () {
19 eval "echo \${$1:=\$(nvram get $1)}"
20 }
21
22 # valid interface?
23 if_valid () {
24 [ "${1%[0-9]}" = "vlan" ] && {
25 i=${1##vlan}
26 hwname=$(nvram_get vlan${i}hwname)
27 hwaddr=$(nvram_get ${hwname}macaddr)
28 [ -z "$hwaddr" ] && return 1
29
30 vif=$(mac2if $hwaddr)
31 echo "# vlan${i}: $hwname $hwaddr => $vif"
32
33 $DEBUG ifconfig $vif up
34 #$DEBUG vconfig rem vlan${i}
35 $DEBUG vconfig add $vif $i
36 }
37 ifconfig "$1" >/dev/null 2>&1 || [ "${1%[0-9]}" = "br" ]
38 return $?
39 }
40
41 wifi_init () {
42 echo "# --- wifi init ---"
43 hwaddr=$(nvram_get il0macaddr)
44 [ -z "$hwaddr" ] && hwaddr=$(nvram_get wl0_hwaddr)
45 if=$(mac2if $hwaddr)
46 $DEBUG wlconf $if up
47 }
48
49 configure () {
50 type=$1
51 echo "# --- $type ---"
52
53 if=$(nvram_get ${type}_ifname)
54 if [ "${if%[0-9]}" = "ppp" ]; then
55 if=$(nvram get pppoe_ifname)
56 fi
57 if_valid $if || return
58
59 if [ "${if%[0-9]}" = "br" ]; then
60 $DEBUG ifconfig $if down
61 $DEBUG brctl delbr $if
62 $DEBUG brctl addbr $if
63 $DEBUG brctl setfd $if 0
64 if_list=$(nvram_get ${type}_ifnames)
65 for sif in $if_list; do {
66 if_valid $sif || continue
67 $DEBUG ifconfig $sif 0.0.0.0 up
68 $DEBUG brctl addif $if $sif
69 }; done
70 fi
71
72 if_mac=$(nvram_get ${type}_hwaddr)
73 $DEBUG ifconfig $if hw ether $if_mac
74
75 if_proto=$(nvram_get ${type}_proto)
76 case "$if_proto" in
77 static)
78 if_ip=$(nvram_get ${type}_ipaddr)
79 if_netmask=$(nvram_get ${type}_netmask)
80 if_gateway=$(nvram_get ${type}_gateway)
81
82 ipcalc -s "$if_ip" || return
83 ipcalc -s "$if_netmask" || return
84 $DEBUG ifconfig $if $if_ip netmask $if_netmask up
85
86 ipcalc -s "$ip_gateway" || return
87 $DEBUG route add default gw $ip_gateway
88 ;;
89 dhcp)
90 pidfile=/tmp/dhcp-${type}.pid
91 if [ -f $pidfile ]; then
92 $DEBUG kill $(cat $pidfile)
93 fi
94 $DEBUG udhcpc -i $if -b -p /tmp/dhcp-${type}.pid
95 ;;
96 pppoe)
97 if_username=$(nvram_get ppp_username)
98 if_password=$(nvram_get ppp_passwd)
99 if_redial=$(nvram_get ppp_redialperiod)
100 if_idletime=$(nvram_get ppp_idletime)
101
102 $DEBUG ifconfig $if 0.0.0.0 up
103
104 $DEBUG pppd user "$if_username" password "$if_password" defaultroute
105 ;;
106 *)
107 echo "$if: $if_proto is not supported"
108 ;;
109 esac
110 }
111
112 ### START NETWORKING ###
113 wifi_init
114
115 $DEBUG vconfig set_name_type VLAN_PLUS_VID_NO_PAD
116
117 # hacks for 1.x hardware
118 [ -z "$(nvram_get vlan0hwname)" ] && {
119 echo "# 1.x HACK"
120 vlan1hwname="et0"
121 vlan2hwname="et0"
122
123 # we remap old device names to new
124 # it's recommended that you continue to
125 # use the old names to preserve backwards
126 # compatibility
127 remap () {
128 eval $1=\"$(nvram_get $1 | awk '{
129 gsub(/eth0/,"vlan2")
130 gsub(/eth1/,"vlan1")
131 print $0
132 }')\"
133 }
134
135 remap lan_ifname
136 remap lan_ifnames
137 remap wifi_ifname
138 remap wifi_ifnames
139 remap wan_ifname
140 remap wan_ifnames
141 remap pppoe_ifname
142 }
143
144 # failsafe if reset is held
145 [ "$FAILSAFE" = "true" ] && {
146 lan_ifname="br0"
147 lan_ifnames="vlan0 vlan2 eth1 eth2 eth3"
148 lan_ipaddr="192.168.1.1"
149 lan_netmask="255.255.255.0"
150 lan_hwaddr="00:0B:AD:0A:DD:00"
151 wan_ifname="none"
152 wifi_ifname="none"
153 }
154
155 # linksys bug has lan doing dhcp; force static
156 lan_proto="static"
157
158 configure lan
159 configure wifi
160 configure wan