#!/bin/sh
# $FreeBSD$
#
# rc.conf for picobsd.
# $main_ether and $main_if are set from rc to the ethernet address and
# name of the first ethernet interface, if available, so a simple
# here-document below can be used for autoconfiguration.
# Remaining parameters are set using a switch.

rc_conf_set_defaults() {
syslogd_enable="NO"
pccard_enable="NO"
swapfile="NO"		# Set to name of swapfile if aux swapfile desired.
firewall_enable="NO"		# firewall type (see /etc/rc.firewall) or NO
tcp_extensions="NO"		# Allow RFC1323 & RFC1644 extensions (or NO).
ifconfig_lo0="inet 127.0.0.1"	# default loopback device configuration.
#ifconfig_lo0_alias0="inet 127.0.0.254 netmask 0xffffffff" # Sample alias entry.
### Network daemons options: ###
sshd_enable="YES"		# if present...
inetd_enable="YES"		# Run the network daemon dispatcher (or NO)
inetd_flags=""			# Optional flags to inetd
snmpd_enable="NO"		# Run the SNMP daemon (or NO)
snmpd_flags="-C -c /etc/snmpd.conf"	# Optional flags to snmpd
### Network routing options: ###
defaultrouter="NO"		# Set to default gateway (or NO).
static_routes=""		# Set to static route list (or leave empty).
gateway_enable="NO"		# Set to YES if this host will be a gateway.
arpproxy_all=""			# replaces obsolete kernel option ARP_PROXYALL.
default_mask="0xffffff00"
}

# the following lets the user specify a name and ip for his system
read_address() {
    echo "Please enter a hostname and IP address for your system $main_ether"
    read hostname the_ip
    if [ "X$hostname" != "X" ] ; then
	echo "# $main_ether $hostname" >> /etc/hosts
	echo "$the_ip $hostname" >> /etc/hosts
    else
	hostname=default
    fi
}

# set "ether" using $1 (interface name) as search key
get_ether() {
    local key
    key=$1
    ether=""
    set `ifconfig ${key}`
    while [ "$1" != "" ] ; do
        if [ "$1" = "ether" ] ; then
            ether=$2
            break
        else
            shift
        fi
    done
}

# read content from /etc/hosts into an array (needed later in fetch_hostname)
read_hosts() {
    local i a b c key junk
    i=""
    while read a b c junk ; do
        if [ "$a" = "#ethertable" ] ; then
            i=0
        elif [ "$i" != "" -a "X$a" = "X#" -a "$b" != "" ] ; then
            eval eth_${i}=$b
            eval eth_host_${i}=$c
            i=$(($i+1))
        fi
    done < /etc/hosts
}

# set "hostname" using $1 (ethernet address) as search key in /etc/hosts
fetch_hostname() {
    local i b key
    key=$1
    i=0
    b="x"
    if [ "${eth_0}" = "" ] ; then
	read_hosts
    fi
    hostname=""
    while [ "$b" != "" -a "${hostname}" = "" ] ; do
        eval b=\${eth_${i}}
        case X${key} in
        X${b} ) # so we can use wildcards
            eval hostname=\${eth_host_${i}}
            break
            ;;
        esac
        i=$(($i+1))
    done
    echo "fetch_hostname for <${key}> returns <${hostname}>"
}

# sets "mask" using $1 (netmask name) as the search key in /etc/networks
fetch_mask() {
    local a b key junk
    key=$1	# search key, typically hostname-netmask
    mask=""
    while read a b junk; do # key mask otherstuff
	case X${key} in
	X${a} )	# we can use wildcards
	    mask=$b
	    break
	    ;;
	esac
    done < /etc/networks
    if [ "${mask}" = "" ] ; then
	mask=${default_mask}
    fi
    echo "fetch_mask for <${key}> returns <${mask}>"
}


set_main_interface() {
    fetch_hostname ${main_ether}

    if [ "X$hostname" = "X" -o "X$hostname" = "X." ] ; then
	if [ "X$main_ether" = "X" ] ; then
	    echo "No ethernets found, using localhost"
	    hostname=localhost
	else
	    read_address
	fi
    fi
    fetch_mask ${hostname}-netmask

    eval ifconfig_${main_if}=\" \${hostname} netmask \${mask}\"
    network_interfaces=`ifconfig -l`
}

set_all_interfaces() {
    local i ether hostname mask

    for i in `ifconfig -l` ; do
	get_ether $i
	fetch_hostname ${ether}
	fetch_mask ${hostname}-netmask
	if [ "${ether}" != "" -a "${hostname}" != "" ] ; then
	    eval ifconfig_${i}=\" \${hostname} netmask \${mask}\"
	fi
    done
}

rc_conf_set_defaults

### Allow local configuration override at the very end here ##
### can make use of a case statement to set per-host things.
if [ -f /etc/rc.conf.local ]; then
	. /etc/rc.conf.local
fi