Annotation of src/etc/netstart, Revision 1.9
1.1 deraadt 1: #!/bin/sh -
2: #
1.9 ! deraadt 3: # $OpenBSD: netstart,v 1.8 1996/06/18 15:30:02 deraadt Exp $
1.1 deraadt 4:
5: # set these to "NO" to turn them off. otherwise, they're used as flags
6: routed_flags=-q
1.3 deraadt 7: mrouted_flags=NO # for 'normal' use: mrouted_flags=""
1.1 deraadt 8: rarpd_flags=NO # for 'normal' use: rarpd_flags="-a"
9: bootparamd_flags=NO # for 'normal' use: bootparamd_flags=""
10: rbootd_flags=NO # for 'normal' use: rbootd_flags=""
11: sendmail_flags=NO # for 'normal' use: sendmail_flags="-bd -q30m"
12: named_flags=NO # for 'normal' use: named_flags=""
13: timed_flags=
14:
15: # set the following to "YES" to turn them on
16: rwhod=NO
17: nfs_server=NO
18: nfs_client=NO
19: gated=NO
20: kerberos_server=NO
21: amd=NO
1.4 dm 22: ipfilter=NO
1.1 deraadt 23:
24: # miscellaneous other flags
25: # only used if the appropriate server is marked YES above
26: gated_flags=
27: amd_dir=/amd # AMD's mount directory
28: amd_master=/etc/amd/master # AMD 'master' map
1.4 dm 29: ipfilter_rules=/etc/ipf.rules # Rules for IP packet filtering
30: ipmon_flags=-s # To disable logging, use ipmon_flags=NO
1.1 deraadt 31:
32: # /etc/myname contains my symbolic name
33: #
34: hostname=`cat /etc/myname`
35: hostname $hostname
36: if [ -f /etc/defaultdomain ]; then
37: domainname `cat /etc/defaultdomain`
1.4 dm 38: fi
39:
40: # Configure the IP filter before configuring network interfaces
41: #
42: if [ X"${ipfilter}" = X"YES" -a -f "${ipfilter_rules}" ]; then
43: echo 'configuring IP filter'
44: ipf -Fa -f ${ipfilter_rules} -E
45: else
46: ipfilter=NO
1.1 deraadt 47: fi
48:
49: # configure all of the interfaces which we know about.
50: # do this by reading /etc/hostname.* files, where * is the name
51: # of a given interface.
52: #
53: # these files are formatted like the following, but with no # at the
54: # beginning of the line
55: #
56: # addr_family hostname netmask broadcast_addr options
57: # dest dest_addr
58: #
59: # addr_family is the address family of the interface, generally inet
60: # hostname is the host name that belongs to the interface, in /etc/hosts.
61: # netmask is the network mask for the interface.
62: # broadcast_addr is the broadcast address for the interface
63: # options are misc. options to ifconfig for the interface.
64: #
65: # dest is simply the string "dest" (no quotes, though) if the interface
66: # has a "destination" (i.e. it's a point-to-point link, like SLIP).
67: # dest_addr is the hostname of the other end of the link, in /etc/hosts
68: #
69: # the only required contents of the file are the addr_family field
70: # and the hostname.
71:
72: (
73: tmp="$IFS"
74: IFS="$IFS."
75: set -- `echo /etc/hostname*`
76: IFS=$tmp
77: unset tmp
78:
79: while [ $# -ge 2 ] ; do
80: shift # get rid of "hostname"
81: (
82: read af name mask bcaddr extras
83: read dt dtaddr
84:
85: if [ ! -n "$name" ]; then
86: echo "/etc/hostname.$1: invalid network configuration file"
87: exit
88: fi
89:
90: cmd="ifconfig $1 $af $name "
91: if [ "${dt}" = "dest" ]; then cmd="$cmd $dtaddr"; fi
92: if [ -n "$mask" ]; then cmd="$cmd netmask $mask"; fi
93: if [ -n "$bcaddr" -a "X$bcaddr" != "XNONE" ]; then
94: cmd="$cmd broadcast $bcaddr";
95: fi
96: cmd="$cmd $extras"
97:
98: $cmd
99: ) < /etc/hostname.$1
100: shift
101: done
102: )
103:
104: # set the address for the loopback interface
105: ifconfig lo0 inet localhost
106:
107: # use loopback, not the wire
108: route add $hostname localhost
1.8 deraadt 109: route add -net 127 127.0.0.1 -reject
1.6 tholo 110:
111: # default multicast route
1.9 ! deraadt 112: route add -net 224.0.0.0 -interface $hostname
1.1 deraadt 113:
114: # /etc/mygate, if it exists, contains the name of my gateway host
115: # that name must be in /etc/hosts.
116: if [ -f /etc/mygate ]; then
117: route add default `cat /etc/mygate`
1.2 deraadt 118: fi
119:
120: # /etc/ifaliases, if it exists, contains the names of additional IP
121: # addresses for each interface. It is formatted as a series of lines
122: # that contain
1.7 deraadt 123: # interface address netmask
1.2 deraadt 124: if [ -f /etc/ifaliases ]; then
125: (
1.7 deraadt 126: # delete comments and blank lines
127: set -- `sed -e 's/#.*$//' /etc/ifaliases | grep -v '^$'`
1.2 deraadt 128:
1.7 deraadt 129: while [ $# -ge 3 ] ; do
130: ifconfig $1 inet alias $2 netmask $3
131: route add $2 localhost
132: shift 3
1.2 deraadt 133: done
134: )
1.1 deraadt 135: fi
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