Annotation of src/etc/netstart, Revision 1.35
1.1 deraadt 1: #!/bin/sh -
2: #
1.35 ! deraadt 3: # $OpenBSD: netstart,v 1.34 1997/12/21 01:17:21 deraadt Exp $
1.1 deraadt 4:
5: # /etc/myname contains my symbolic name
6: #
7: hostname=`cat /etc/myname`
8: hostname $hostname
9: if [ -f /etc/defaultdomain ]; then
10: domainname `cat /etc/defaultdomain`
1.4 dm 11: fi
1.30 deraadt 12:
13: # pick up option configuration
14: . /etc/rc.conf
1.4 dm 15:
16: # Configure the IP filter before configuring network interfaces
17: #
18: if [ X"${ipfilter}" = X"YES" -a -f "${ipfilter_rules}" ]; then
19: echo 'configuring IP filter'
20: ipf -Fa -f ${ipfilter_rules} -E
21: else
22: ipfilter=NO
1.1 deraadt 23: fi
1.17 kstailey 24:
25: # Configure NAT before configuring network interfaces
26: #
1.32 kstailey 27: if [ "${nat}" = "YES" -a "${ipfilter}" = "YES" -a -f "${nat_rules}" ]; then
1.17 kstailey 28: echo 'configuring NAT'
29: ipnat -CF -f ${nat_rules}
30: else
31: nat=NO
32: fi
33:
1.24 kstailey 34: # set the address for the loopback interface
35: ifconfig lo0 inet localhost
1.1 deraadt 36:
1.24 kstailey 37: # use loopback, not the wire
1.28 millert 38: route add -host $hostname localhost
1.24 kstailey 39: route add -net 127 127.0.0.1 -reject
40:
41: # configure all of the non-loopback interfaces which we know about.
1.1 deraadt 42: # do this by reading /etc/hostname.* files, where * is the name
43: # of a given interface.
44: #
45: # these files are formatted like the following, but with no # at the
46: # beginning of the line
47: #
48: # addr_family hostname netmask broadcast_addr options
49: # dest dest_addr
50: #
51: # addr_family is the address family of the interface, generally inet
52: # hostname is the host name that belongs to the interface, in /etc/hosts.
53: # netmask is the network mask for the interface.
54: # broadcast_addr is the broadcast address for the interface
55: # options are misc. options to ifconfig for the interface.
56: #
57: # dest is simply the string "dest" (no quotes, though) if the interface
58: # has a "destination" (i.e. it's a point-to-point link, like SLIP).
59: # dest_addr is the hostname of the other end of the link, in /etc/hosts
60: #
61: # the only required contents of the file are the addr_family field
62: # and the hostname.
63:
64: (
65: tmp="$IFS"
66: IFS="$IFS."
67: set -- `echo /etc/hostname*`
68: IFS=$tmp
69: unset tmp
70:
71: while [ $# -ge 2 ] ; do
72: shift # get rid of "hostname"
73: (
74: read af name mask bcaddr extras
1.31 deraadt 75: read dt dtaddr
1.1 deraadt 76:
77: if [ ! -n "$name" ]; then
78: echo "/etc/hostname.$1: invalid network configuration file"
79: exit
80: fi
81:
82: cmd="ifconfig $1 $af $name "
83: if [ "${dt}" = "dest" ]; then cmd="$cmd $dtaddr"; fi
84: if [ -n "$mask" ]; then cmd="$cmd netmask $mask"; fi
85: if [ -n "$bcaddr" -a "X$bcaddr" != "XNONE" ]; then
86: cmd="$cmd broadcast $bcaddr";
87: fi
88: cmd="$cmd $extras"
89:
90: $cmd
91: ) < /etc/hostname.$1
92: shift
93: done
94: )
95:
1.14 deraadt 96: # /etc/mygate, if it exists, contains the name of my gateway host
97: # that name must be in /etc/hosts.
98: if [ -f /etc/mygate ]; then
1.28 millert 99: route add -host default `cat /etc/mygate`
1.14 deraadt 100: fi
1.6 tholo 101:
102: # default multicast route
1.9 deraadt 103: route add -net 224.0.0.0 -interface $hostname
1.1 deraadt 104: