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openntpd-openbsd
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Change the network components initialization order. 

Change from:
o all interfaces
o all bridges
o routes
to:
o physical interfaces
o routes
o gif and gre interfaces
o bridges
Fixeski PR #2400.
Manual page updates coming soon.
Ok angelos@ chris@ deraadt@
OPENBSD_3_1
miod 23 years ago
parent
b885e82db3
commit
a8fb738148
1 changed files with 199 additions and 140 deletions
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  1. +199
    -140
      src/etc/netstart

+ 199
- 140
src/etc/netstart View File

@ -1,6 +1,6 @@
#!/bin/sh -
#
# $OpenBSD: netstart,v 1.82 2001/07/31 08:27:35 hugh Exp $
# $OpenBSD: netstart,v 1.83 2002/02/21 02:32:01 miod Exp $
# Returns true if $1 contains only alphanumerics
isalphanumeric() {
@ -16,22 +16,175 @@ isalphanumeric() {
return 0
}
# Start the $1 interface
ifstart() {
# Interface names must be alphanumeric only. We check to avoid
# configuring backup or temp files, and to catch the "*" case.
if ! isalphanumeric "$1"; then
return
fi
ifconfig $1 > /dev/null 2>&1
if [ "$?" != "0" ]; then
return
fi
# Now parse the hostname.* file
while :; do
if [ "$cmd2" ]; then
# We are carrying over from the 'read dt dtaddr'
# last time.
set -- $cmd2
af="$1" name="$2" mask="$3" bcaddr="$4" ext1="$5" cmd2=
# Make sure and get any remaining args in ext2,
# like the read below
i=1
while [ i -lt 6 -a -n "$1" ]; do shift; let i=i+1; done
ext2="$@"
else
# Read the next line or exit the while loop.
read af name mask bcaddr ext1 ext2 || break
fi
# $af can be "dhcp", "up", "rtsol", an address family,
# commands, or a comment.
case "$af" in
"#"*|"") # skip comments and empty lines
continue
;;
"!"*) # parse commands
cmd="${af#*!} ${name} ${mask} ${bcaddr} ${ext1} ${ext2}"
;;
"bridge")
cmd="echo /etc/hostname.$1: bridges now supported via bridgename.* files"
;;
"dhcp")
[ "$name" = "NONE" ] && name=
[ "$mask" = "NONE" ] && mask=
[ "$bcaddr" = "NONE" ] && bcaddr=
ifconfig $1 $name $mask $bcaddr $ext1 $ext2 down
cmd="dhclient $1"
;;
"rtsol")
ifconfig $1 $name $mask $bcaddr $ext1 $ext2 up
rtsolif="$rtsolif $1"
cmd=
;;
"up")
# The only one of these guaranteed to be set is $1.
# The remaining ones exist so that media controls work.
cmd="ifconfig $1 $name $mask $bcaddr $ext1 $ext2 up"
;;
*)
read dt dtaddr
if [ "$name" = "alias" ]; then
# perform a 'shift' of sorts
alias=$name
name=$mask
mask=$bcaddr
bcaddr=$ext1
ext1=$ext2
ext2=
else
alias=
fi
cmd="ifconfig $1 $af $alias $name "
case "$dt" in
dest)
cmd="$cmd $dtaddr"
;;
[a-z!]*)
cmd2="$dt $dtaddr"
;;
esac
if [ ! -n "$name" ]; then
echo "/etc/hostname.$1: invalid network configuration file"
return
fi
case $af in
inet)
[ "$mask" ] && cmd="$cmd netmask $mask"
if [ "$bcaddr" -a "X$bcaddr" != "XNONE" ]; then
cmd="$cmd broadcast $bcaddr"
fi
[ "$alias" ] && rtcmd=";route -n add -host $name 127.0.0.1"
;;
inet6) [ "$mask" ] && cmd="$cmd prefixlen $mask"
cmd="$cmd $bcaddr"
;;
*)
cmd="$cmd $mask $bcaddr"
;;
esac
cmd="$cmd $ext1 $ext2$rtcmd" rtcmd=
;;
esac
eval "$cmd"
done < /etc/hostname.$1
}
# Start the $1 bridge
bridgestart() {
# Interface names must be alphanumeric only. We check to avoid
# configuring backup or temp files, and to catch the "*" case.
if ! isalphanumeric "$1"; then
return
fi
brconfig $1 > /dev/null 2>&1
if [ "$?" != "0" ]; then
return
fi
# Now parse the bridgename.* file
# All lines are run as brconfig(8) commands.
while read line ; do
line=${line%%#*} # strip comments
test -z "$line" && continue
case "$line" in
"!"*)
cmd="${line#*!}"
;;
*)
cmd="brconfig $1 $line"
;;
esac
eval "$cmd"
done < /etc/bridgename.$1
}
# Re-read /etc/rc.conf
. /etc/rc.conf
# If we were invoked with a list of interface names, just reconfigure these
# interfaces (or bridges) and return.
if [ $1x = autobootx ]; then
shift
fi
if [ $# -gt 0 ]; then
while [ $# -gt 0 ]; do
if [ -f /etc/bridgename.$1 ]; then
bridgestart $1
else
ifstart $1
fi
shift
done
return
fi
# Otherwise, process with the complete network initialization.
# /etc/myname contains my symbolic name
#
hostname=`cat /etc/myname`
hostname $hostname
if [ -f /etc/defaultdomain ]; then
domainname `cat /etc/defaultdomain`
fi
# set the address for the loopback interface
# it will also initialize IPv6 address for lo0 (::1 and others).
# Set the address for the loopback interface.
# It will also initialize IPv6 address for lo0 (::1 and others).
ifconfig lo0 inet localhost
# use loopback, not the wire
# Use loopback, not the wire.
route -n add -host $hostname localhost > /dev/null
route -n add -net 127 127.0.0.1 -reject > /dev/null
@ -39,25 +192,25 @@ if ifconfig lo0 inet6 >/dev/null 2>&1; then
# IPv6 configurations.
ip6kernel=YES
# disallow link-local unicast dest without outgoing scope identifiers.
# Disallow link-local unicast dest without outgoing scope identifiers.
route add -inet6 fe80:: -prefixlen 10 ::1 -reject > /dev/null
# disallow site-local unicast dest without outgoing scope identifiers.
# Disallow site-local unicast dest without outgoing scope identifiers.
# If you configure site-locals without scope id (it is permissible
# config for routers that are not on scope boundary), you may want
# to comment the line out.
route add -inet6 fec0:: -prefixlen 10 ::1 -reject > /dev/null
# disallow "internal" addresses to appear on the wire.
# Disallow "internal" addresses to appear on the wire.
route add -inet6 ::ffff:0.0.0.0 -prefixlen 96 ::1 -reject > /dev/null
# disallow packets to malicious IPv4 compatible prefix.
# Disallow packets to malicious IPv4 compatible prefix.
route add -inet6 ::224.0.0.0 -prefixlen 100 ::1 -reject > /dev/null
route add -inet6 ::127.0.0.0 -prefixlen 104 ::1 -reject > /dev/null
route add -inet6 ::0.0.0.0 -prefixlen 104 ::1 -reject > /dev/null
route add -inet6 ::255.0.0.0 -prefixlen 104 ::1 -reject > /dev/null
# disallow packets to malicious 6to4 prefix.
# Disallow packets to malicious 6to4 prefix.
route add -inet6 2002:e000:: -prefixlen 20 ::1 -reject > /dev/null
route add -inet6 2002:7f00:: -prefixlen 24 ::1 -reject > /dev/null
route add -inet6 2002:0000:: -prefixlen 24 ::1 -reject > /dev/null
@ -83,108 +236,22 @@ else
ip6kernel=NO
fi
# configure all of the non-loopback interfaces which we know about.
# refer to hostname.if(5) and bridgename.if(5)
# Configure all the non-loopback interfaces which we know about.
# Refer to hostname.if(5) and bridgename.if(5)
for hn in /etc/hostname.*; do
# Strip off /etc/hostname. prefix
if=${hn#/etc/hostname.}
# Interface names must be alphanumeric only. We check to avoid
# configuring backup or temp files, and to catch the "*" case.
if ! isalphanumeric "$if"; then
continue
fi
ifconfig $if > /dev/null 2>&1
if [ "$?" != "0" ]; then
continue
fi
# Strip off /etc/hostname. prefix
if=${hn#/etc/hostname.}
# Now parse the hostname.* file
while :; do
if [ "$cmd2" ]; then
# we are carrying over from the 'read dt dtaddr' last time
set -- $cmd2
af="$1" name="$2" mask="$3" bcaddr="$4" ext1="$5" cmd2=
# make sure and get any remaining args in ext2, like the read below
i=1; while [ i -lt 6 -a -n "$1" ]; do shift; let i=i+1; done
ext2="$@"
else
# read the next line or exit the while loop
read af name mask bcaddr ext1 ext2 || break
fi
# $af can be "dhcp", "up", "rtsol", an address family, commands, or
# a comment.
case "$af" in
"#"*|"") # skip comments and empty lines
continue
;;
"!"*) # parse commands
cmd="${af#*!} ${name} ${mask} ${bcaddr} ${ext1} ${ext2}"
;;
"bridge")
cmd="echo ${hn}: bridges now supported via bridgename.* files"
;;
"dhcp")
[ "$name" = "NONE" ] && name=
[ "$mask" = "NONE" ] && mask=
[ "$bcaddr" = "NONE" ] && bcaddr=
ifconfig $if $name $mask $bcaddr $ext1 $ext2 down
cmd="dhclient $if"
;;
"rtsol")
ifconfig $if $name $mask $bcaddr $ext1 $ext2 up
rtsolif="$rtsolif $if"
cmd=
;;
"up")
# The only one of these guaranteed to be set is $if
# the remaining ones exist so that media controls work
cmd="ifconfig $if $name $mask $bcaddr $ext1 $ext2 up"
;;
*)
read dt dtaddr
if [ "$name" = "alias" ]; then
# perform a 'shift' of sorts
alias=$name
name=$mask
mask=$bcaddr
bcaddr=$ext1
ext1=$ext2
ext2=
else
alias=
fi
cmd="ifconfig $if $af $alias $name "
case "$dt" in
dest)
cmd="$cmd $dtaddr"
;;
[a-z!]*)
cmd2="$dt $dtaddr"
;;
esac
if [ ! -n "$name" ]; then
echo "/etc/hostname.$if: invalid network configuration file"
return
fi
case $af in
inet)
[ "$mask" ] && cmd="$cmd netmask $mask"
if [ "$bcaddr" -a "X$bcaddr" != "XNONE" ]; then
cmd="$cmd broadcast $bcaddr"
fi
[ "$alias" ] && rtcmd="; route -n add -host $name 127.0.0.1"
case $if in
"gif"*|"gre"*)
# GIF and GRE interfaces need the routes to be setup before
# they are configured.
continue
;;
inet6) [ "$mask" ] && cmd="$cmd prefixlen $mask"
cmd="$cmd $bcaddr"
*)
ifstart $if
;;
*) cmd="$cmd $mask $bcaddr"
esac
cmd="$cmd $ext1 $ext2$rtcmd" rtcmd=
;;
esac
eval "$cmd"
done < /etc/hostname.$if
done
if [ "$ip6kernel" = "YES" -a "x$rtsolif" != "x" ]; then
@ -203,39 +270,6 @@ if [ "$ip6kernel" = "YES" ]; then
sleep 1
fi
for bn in /etc/bridgename.*; do
# Strip off /etc/bridgename. prefix
if=${bn#/etc/bridgename.}
# Interface names must be alphanumeric only. We check to avoid
# configuring backup or temp files, and to catch the "*" case.
if ! isalphanumeric "$if"; then
continue
fi
brconfig $if > /dev/null 2>&1
if [ "$?" != "0" ]; then
continue
fi
# Now parse the bridgename.* file
{
# All lines are run as brconfig(8) commands.
while read line ; do
line=${line%%#*} # strip comments
test -z "$line" && continue
case "$line" in
"!"*)
cmd="${line#*!}"
;;
*)
cmd="brconfig $if $line"
;;
esac
eval "$cmd"
done
} < /etc/bridgename.$if
done
# /etc/mygate, if it exists, contains the name of my gateway host
# that name must be in /etc/hosts.
if [ -f /etc/mygate ]; then
@ -273,3 +307,28 @@ EOF
route -n add -net 224.0.0.0/4 -interface 127.0.0.1 -reject > /dev/null
;;
esac
# Configure all the gif and gre interfaces which we know about.
# They were delayed because they require the routes to be set.
for hn in /etc/hostname.*; do
# Strip off /etc/hostname. prefix
if=${hn#/etc/hostname.}
case $if in
"gif"*|"gre"*)
ifstart $if
;;
*)
# Regular interfaces have already been configured.
continue
;;
esac
done
# Configure all the bridges.
for bn in /etc/bridgename.*; do
# Strip off /etc/bridgename. prefix
if=${bn#/etc/bridgename.}
bridgestart $if
done

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