228 lines
5.9 KiB
Bash
Executable File
228 lines
5.9 KiB
Bash
Executable File
#!/bin/sh
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#
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# $NetBSD: network,v 1.57 2008/10/11 17:28:03 christos Exp $
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#
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# PROVIDE: network
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# REQUIRE: mountfs sysclock
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# BEFORE: NETWORKING
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$_rc_subr_loaded . /etc/rc.subr
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name="network"
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start_cmd="network_start"
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stop_cmd="network_stop"
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required_dirs="/sys/class/net/lo"
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nl='
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' # a newline
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network_start()
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{
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# set hostname, turn on network
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#
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echo "=> Starting network."
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# If $hostname is set, use it for my Internet name,
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# otherwise use /etc/myname
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#
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if [ -z "$hostname" ] && [ -f /etc/myname ]; then
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hostname=$(cat /etc/myname)
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fi
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if [ -n "$hostname" ]; then
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echo "=> Setting hostname: $hostname."
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hostname $hostname
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fi
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# Set the address for the first loopback interface, so that the
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# auto-route from a newly configured interface's address to lo0
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# works correctly.
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#
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# NOTE: obscure networking problems will occur if lo0 isn't configured.
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#
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ifconfig lo 127.0.0.1 up
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# Configure all of the network interfaces listed in $net_interfaces;
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# if $auto_ifconfig is YES, grab all interfaces from ifconfig.
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# In the following, "xxN" stands in for interface names, like "le0".
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#
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# For any interfaces that has an $ifconfig_xxN variable
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# associated, we break it into lines using ';' as a separator,
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# then process it just like the contents of an /etc/ifconfig.xxN
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# file.
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#
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# For each line from the $ifconfig_xxN variable or the
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# /etc/ifconfig.xxN file, we ignore comments and blank lines,
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# treat lines beginning with "!" as commands to execute, treat
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# "dhcp" as a special case to invoke dhcpcd, and for any other
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# line we run "ifconfig xxN", using each line of the file as the
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# arguments for a separate "ifconfig" invocation.
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#
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# In order to configure an interface reasonably, you at the very least
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# need to specify "[addr_family] [hostname]" (e.g "inet my.domain.org"),
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# and probably a netmask (as in "netmask 0xffffffe0"). You will
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# frequently need to specify a media type, as in "media UTP", for
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# interface cards with multiple media connections that do not
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# autoconfigure. See the ifconfig manual page for details.
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#
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# Note that /etc/ifconfig.xxN takes multiple lines. The following
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# configuration is possible:
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# inet 10.1.1.1 netmask 0xffffff00
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# inet 10.1.1.2 netmask 0xffffff00 alias
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# inet6 2001:db8::1 prefixlen 64 alias
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#
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# You can put shell script fragment into /etc/ifconfig.xxN by
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# starting a line with "!". Refer to ifconfig.if(5) for details.
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#
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if [ "$net_interfaces" != NO ]; then
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if checkyesno auto_ifconfig; then
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tmp=$(/sbin/ifconfig -l)
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for cloner in $(ls /sys/class/net/eth* 2>/dev/null); do
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for int in /etc/ifconfig.${cloner}[0-9]*; do
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[ ! -f $int ] && break
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tmp="$tmp ${int##*.}"
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done
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done
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else
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tmp="$net_interfaces"
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fi
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echo -n '=> Configuring network interfaces:'
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for int in ${tmp}; do
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eval argslist=\$ifconfig_$int
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# Skip interfaces that do not have explicit
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# configuration information. If auto_ifconfig is
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# false then also warn about such interfaces.
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#
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if [ -z "$argslist" ] && ! [ -f /etc/ifconfig.$int ]
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then
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if ! checkyesno auto_ifconfig; then
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echo
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warn \
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"/etc/ifconfig.$int missing and ifconfig_$int not set;"
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warn "interface $int not configured."
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fi
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continue
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fi
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echo -n " $int"
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# If $ifconfig_xxN is empty, then use
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# /etc/ifconfig.xxN, which we know exists due to
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# an earlier test.
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#
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# If $ifconfig_xxN is non-empty and contains a
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# newline, then just use it as is. (This allows
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# semicolons through unmolested.)
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#
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# If $ifconfig_xxN is non-empty and does not
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# contain a newline, then convert all semicolons
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# to newlines.
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#
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case "$argslist" in
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'')
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cat /etc/ifconfig.$int
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;;
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*"${nl}"*)
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echo "$argslist"
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;;
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*)
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(
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set -o noglob
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IFS=';'; set -- $argslist
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#echo >&2 "[$#] [$1] [$2] [$3] [$4]"
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IFS="$nl"; echo "$*"
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)
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;;
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esac |
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while read -r args; do
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case "$args" in
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''|"#"*|create)
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;;
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"!"*)
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# Run arbitrary command in a subshell.
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( eval "${args#*!}" )
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;;
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dhcp)
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dhcpcd -n ${dhcpcd_flags} $int
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;;
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*)
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# Pass args to ifconfig. Note
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# that args may contain embedded
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# shell metacharacters, such as
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# "ssid 'foo;*>bar'". We eval
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# one more time so that things
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# like ssid "Columbia University" work.
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(
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set -o noglob
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eval set -- $args
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#echo >&2 "[$#] [$1] [$2] [$3]"
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ifconfig $int "$@"
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)
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;;
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esac
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done
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configured_interfaces="$configured_interfaces $int"
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done
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echo "."
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fi
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# Check $defaultroute, then /etc/mygate, for the name or address
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# of my IPv4 gateway host. If using a name, that name must be in
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# /etc/hosts.
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#
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if [ -z "$defaultroute" ] && [ -f /etc/mygate ]; then
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defaultroute=$(cat /etc/mygate)
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fi
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if [ -n "$defaultroute" ]; then
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route add default gw $defaultroute
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fi
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# Check $defaultroute6, then /etc/mygate6, for the name or address
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# of my IPv6 gateway host. If using a name, that name must be in
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# /etc/hosts. Note that the gateway host address must be a link-local
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# address if it is not using an stf* interface.
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#
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if [ -z "$defaultroute6" ] && [ -f /etc/mygate6 ]; then
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defaultroute6=$(cat /etc/mygate6)
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fi
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if [ -n "$defaultroute6" ]; then
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if [ "$ip6mode" = "autohost" ]; then
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echo
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warn \
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"ip6mode is set to 'autohost' and a v6 default route is also set."
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fi
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route -A inet6 add $defaultroute6
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fi
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}
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network_stop()
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{
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echo "=> Stopping network."
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# down interfaces
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#
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echo -n '=> Downing network interfaces:'
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if [ "$net_interfaces" != NO ]; then
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if checkyesno auto_ifconfig; then
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tmp=$(ls /sys/class/net/eth*)
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else
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tmp="$net_interfaces"
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fi
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for int in $tmp; do
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eval args=\$ifconfig_$int
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if [ -n "$args" ] || [ -f /etc/ifconfig.$int ]; then
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echo -n " $int"
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dhcpcd -k $int 2> /dev/null
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ifconfig $int down
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fi
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done
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echo "."
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fi
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}
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load_rc_config $name
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run_rc_command "$1"
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