From 78341629c4a2f13eeff799361308dd12f9b7044d Mon Sep 17 00:00:00 2001
From: mbm <mbm@3c298f89-4303-0410-b956-a3cf2f4a3e73>
Date: Sat, 8 May 2004 07:28:08 +0000
Subject: *** empty log message ***

git-svn-id: svn://svn.openwrt.org/openwrt/trunk@19 3c298f89-4303-0410-b956-a3cf2f4a3e73
---
 root/etc/functions.sh | 118 ++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 118 insertions(+)
 create mode 100755 root/etc/functions.sh

(limited to 'root/etc/functions.sh')

diff --git a/root/etc/functions.sh b/root/etc/functions.sh
new file mode 100755
index 0000000000..1cf97e380a
--- /dev/null
+++ b/root/etc/functions.sh
@@ -0,0 +1,118 @@
+#!/bin/sh
+
+. /etc/nvram.overrides
+
+debug () {
+ [ -z "$DEBUG" ] || echo $1
+}
+
+# allow env to override nvram 
+nvram_get () {
+ eval "echo \${$1:-\$(nvram get $1)}"
+}
+
+# valid interface?
+if_valid () (
+  [ "${1%%[0-9]}" = "vlan" ] && {
+    i=${1#vlan} 
+    hwname=$(nvram_get vlan${i}hwname)
+    hwaddr=$(nvram_get ${hwname}macaddr)
+    [ -z "$hwaddr" ] && return 1
+
+    vif=$(ifconfig -a | awk '{IGNORECASE=1} /^eth.*'$hwaddr'/ {print $1; exit}')
+    debug "# vlan$i: $hwname $hwaddr => $vif"
+
+    $DEBUG ifconfig $vif up
+    $DEBUG vconfig add $vif $i 2>/dev/null
+  }
+  ifconfig "$1" >/dev/null 2>&1 || [ "${1%%[0-9]}" = "br" ] 
+  return $?
+)
+
+wifi () (
+  debug "### wifi $1 ###"
+  if=$(awk 'gsub(":","") {print $1}' /proc/net/wireless)
+  $DEBUG wlconf $if $1 
+)
+
+ifup () (
+  type=$1
+  debug "### ifup $type ###"
+  
+  if=$(nvram_get ${type}_ifname)
+  if [ "${if%%[0-9]}" = "ppp" ]; then
+    if=$(nvram_get pppoe_ifname) 
+  fi
+  
+  if_valid $if || return
+  
+  $DEBUG ifconfig $if down
+  if [ "${if%%[0-9]}" = "br" ]; then
+    stp=$(nvram_get ${type}_stp)
+    $DEBUG brctl delbr $if
+    $DEBUG brctl addbr $if
+    $DEBUG brctl setfd $if 0
+    $DEBUG brctl stp $if $stp
+    if_list=$(nvram_get ${type}_ifnames)
+    for sif in $if_list; do {
+      if_valid $sif || continue
+      $DEBUG ifconfig $sif 0.0.0.0 up
+      $DEBUG brctl addif $if $sif 
+    } done
+  fi
+
+  if_mac=$(nvram_get ${type}_hwaddr)
+  [ -z "$if_mac" ] || $DEBUG ifconfig $if hw ether $if_mac
+ 
+  if_proto=$(nvram_get ${type}_proto)
+  case "$if_proto" in
+    static)
+      if_ip=$(nvram_get ${type}_ipaddr)
+      if_netmask=$(nvram_get ${type}_netmask)
+      if_gateway=$(nvram_get ${type}_gateway)
+      
+      ipcalc -s "$if_ip"      || return 
+      ipcalc -s "$if_netmask" || return 
+      $DEBUG ifconfig $if $if_ip netmask $if_netmask up
+
+      ipcalc -s "$if_gateway" || return 
+      $DEBUG route add default gw $if_gateway
+
+      [ -f /etc/resolv.conf ] && return
+
+      debug "# --- creating /etc/resolv.conf ---"
+      for dns in $(nvram_get ${type}_dns); do {
+	echo "nameserver $dns" >> /etc/resolv.conf
+      } done
+    ;;
+    dhcp)
+      pidfile=/tmp/dhcp-${type}.pid
+      if [ -f $pidfile ]; then
+        $DEBUG kill $(cat $pidfile)
+      fi
+      cmd="udhcpc -i $if -b -p $pidfile &"
+      ${DEBUG:-eval} $cmd
+    ;;
+    pppoe)
+      if_username=$(nvram_get ppp_username)
+      if_password=$(nvram_get ppp_passwd)
+      if_redial=$(nvram_get ppp_redialperiod)
+      if_idletime=$(nvram_get ppp_idletime)
+      
+      $DEBUG ifconfig $if 0.0.0.0 up
+      
+      $DEBUG /sbin/pppoecd $if -u $if_username -p $if_password -i 0 -I $if_redial -T $if_idletime -k
+    ;;
+    *)
+      echo "### WARNING $if: $if_proto is not supported"
+    ;;
+  esac
+)
+
+ifdown () (                                                                       
+  type=$1
+  debug "### ifdown $type ###"
+  if=$(nvram_get ${type}_ifname)                                                
+  if_valid $if || return                                                        
+  $DEBUG ifdown $if
+)
-- 
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