Commit the various network interface configutation updates I've been
working on.
1) Make it possible to configure interfaces with certain characters in
their names that aren't valid in shell variables. Currently supported
characters are ".-/+". They are converted into '_' characters.
2) Replace nearly all eval statements in network.subr with a new
function get_if_var which substitues an interface name (after the
translations above) for "IF" in a variable name.
3) Fix list_net_interfaces() in the nodhcp case.
4) Allow the administrator to specify if dhclient should be started
when /etc/rc.d/netif configures the interface or only by devd.
This can be set on both a per interface and system wide basis.
PR: conf/88974 [1,2], conf/92433 [1,2]
This commit is contained in:
Brooks Davis
parent
4377aa4cf4
commit
c4af136d49
Notes:
svn2git
2020-12-20 02:59:44 +00:00
svn path=/head/; revision=157706
@ -95,6 +95,8 @@ nisdomainname="NO" # Set to NIS domain if using NIS (or NO).
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dhclient_program="/sbin/dhclient" # Path to dhcp client program.
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dhclient_flags="" # Additional flags to pass to dhcp client.
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background_dhclient="NO" # Start dhcp client in the background.
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syncronous_dhclient="YES" # Start dhclient directly on configured
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# interfaces during startup.
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firewall_enable="NO" # Set to YES to enable firewall functionality
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firewall_script="/etc/rc.firewall" # Which script to run to set up the firewall
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firewall_type="UNKNOWN" # Firewall type (see /etc/rc.firewall)
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101
etc/network.subr
101
etc/network.subr
@ -44,7 +44,7 @@ ifconfig_up()
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ifconfig_args=`ifconfig_getargs $1`
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if [ -n "${ifconfig_args}" ]; then
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ifconfig $1 up
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eval "ifconfig $1 ${ifconfig_args}"
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ifconfig $1 ${ifconfig_args}
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_cfg=0
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fi
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@ -60,7 +60,9 @@ ifconfig_up()
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if [ $_cfg -ne 0 ] ; then
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ifconfig $1 up
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fi
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/etc/rc.d/dhclient start $1
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if syncdhcpif $1; then
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/etc/rc.d/dhclient start $1
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fi
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_cfg=0
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fi
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@ -72,6 +74,8 @@ ifconfig_up()
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# 0 if inet entries were found and removed. It returns 1 if
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# no entries were found or they could not be removed.
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#
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# XXX: should not be only inet
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#
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ifconfig_down()
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{
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[ -z "$1" ] && return 1
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@ -105,9 +109,36 @@ ifconfig_down()
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_cfg=0
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fi
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ifconfig $1 down
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return $_cfg
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}
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# get_if_var if var [default]
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# Return the value of the pseudo-hash corresponding to $if where
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# $var is a string containg the sub-string "IF" which will be
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# replaced with $if after the characters defined in _punct are
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# replaced with '_'. If the variable is unset, replace it with
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# $default if given.
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get_if_var()
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{
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if [ $# -ne 2 -a $# -ne 3 ]; then
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err 3 'USAGE: get_if_var name var [default]'
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fi
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_if=$1
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_punct=". - / +"
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for _punct_c in $punct; do
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_if=`ltr ${_if} ${_punct_c} '_'`
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done
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_var=$2
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_default=$3
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prefix=${_var%%IF*}
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suffix=${_var##*IF}
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eval echo \${${prefix}${_if}${suffix}-${_default}}
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}
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# _ifconfig_getargs if
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# Echos the arguments for the supplied interface to stdout.
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# returns 1 if empty. In general, ifconfig_getargs should be used
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@ -119,9 +150,7 @@ _ifconfig_getargs()
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return 1
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fi
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eval _args=\${ifconfig_$1-$ifconfig_DEFAULT}
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echo "$_args"
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get_if_var $_ifn ifconfig_IF "$ifconfig_DEFAULT"
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}
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# ifconfig_getargs if
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@ -137,12 +166,11 @@ ifconfig_getargs()
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for _arg in $_tmpargs; do
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case $_arg in
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[Dd][Hh][Cc][Pp])
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;;
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[Nn][Oo][Aa][Uu][Tt][Oo])
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;;
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[Ww][Pp][Aa])
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;;
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[Dd][Hh][Cc][Pp]) ;;
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[Nn][Oo][Aa][Uu][Tt][Oo]) ;;
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[Nn][Oo][Ss][Yy][Nn][Cc][Dd][Hh][Cc][Pp]) ;;
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[Ss][Yy][Nn][Cc][Dd][Hh][Cc][Pp]) ;;
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[Ww][Pp][Aa]) ;;
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*)
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_args="$_args $_arg"
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;;
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@ -178,11 +206,40 @@ dhcpif()
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[Dd][Hh][Cc][Pp])
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return 0
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;;
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[Nn][Oo][Ss][Yy][Nn][Cc][Dd][Hh][Cc][Pp])
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return 0
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;;
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[Ss][Yy][Nn][Cc][Dd][Hh][Cc][Pp])
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return 0
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;;
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esac
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done
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return 1
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}
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# syncdhcpif
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# Returns 0 if the interface should be configured synchronously and
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# 1 otherwise.
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syncdhcpif()
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{
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_tmpargs=`_ifconfig_getargs $1`
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for _arg in $_tmpargs; do
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case $_arg in
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[Nn][Oo][Ss][Yy][Nn][Cc][Dd][Hh][Cc][Pp])
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return 1
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;;
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[Ss][Yy][Nn][Cc][Dd][Hh][Cc][Pp])
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return 0
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;;
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esac
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done
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if checkyesno syncronous_dhclient; then
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return 0
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else
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return 1
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fi
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}
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# wpaif if
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# Returns 0 if the interface is a WPA interface and 1 otherwise.
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wpaif()
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@ -226,7 +283,7 @@ ipv4_addrs_common()
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_action=$2
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# get ipv4-addresses
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eval cidr_addr=\${ipv4_addrs_${_if}}
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cidr_addr=`get_if_var $_if ipv4_addrs_IF`
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for _cidr in ${cidr_addr}; do
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_ipaddr=${_cidr%%/*}
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@ -266,7 +323,7 @@ ifalias_up()
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_ret=1
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alias=0
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while : ; do
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eval ifconfig_args=\$ifconfig_$1_alias${alias}
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ifconfig_args=`get_if_var $1 ifconfig_IF_alias${alias}`
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if [ -n "${ifconfig_args}" ]; then
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ifconfig $1 ${ifconfig_args} alias
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alias=$((${alias} + 1))
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@ -288,7 +345,7 @@ ifalias_down()
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_ret=1
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alias=0
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while : ; do
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eval ifconfig_args=\$ifconfig_$1_alias${alias}
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ifconfig_args=`get_if_var $1 ifconfig_IF_alias${alias}`
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if [ -n "${ifconfig_args}" ]; then
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ifconfig $1 ${ifconfig_args} -alias
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alias=$((${alias} + 1))
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@ -367,7 +424,7 @@ gif_up() {
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;;
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*)
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for i in ${gif_interfaces}; do
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eval peers=\$gifconfig_$i
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peers=`get_if_var $i gifconfig_IF`
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case ${peers} in
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'')
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continue
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@ -391,7 +448,7 @@ gif_up() {
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ipx_up()
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{
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ifn="$1"
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eval ifconfig_args=\$ifconfig_${ifn}_ipx
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ifconfig_args=`get_if_var $ifn ifconfig_IF_ipx`
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if [ -n "${ifconfig_args}" ]; then
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ifconfig ${ifn} ${ifconfig_args}
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return 0
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@ -438,7 +495,7 @@ ifnet_rename()
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_ifn_list="`ifconfig -l`"
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[ -z "$_ifn_list" ] && return 0
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for _if in ${_ifn_list} ; do
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eval _ifname=\$ifconfig_${_if}_name
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_ifname=`get_if_var $_if ifconfig_IF_name`
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if [ ! -z "$_ifname" ]; then
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ifconfig $_if name $_ifname
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fi
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@ -499,7 +556,7 @@ list_net_interfaces()
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if dhcpif $_if; then
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_dhcplist="${_dhcplist}${_aprefix}${_if}"
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[ -z "$_aprefix" ] && _aprefix=' '
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elif [ -n "`_ifconfig_getargs $if`" ]; then
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elif [ -n "`_ifconfig_getargs $_if`" ]; then
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_nodhcplist="${_nodhcplist}${_bprefix}${_if}"
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[ -z "$_bprefix" ] && _bprefix=' '
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fi
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@ -564,7 +621,7 @@ network6_interface_setup()
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esac
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for i in $interfaces; do
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rtsol_interface=yes
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eval prefix=\$ipv6_prefix_$i
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prefix=`get_if_var $i ipv6_prefix_IF`
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if [ -n "${prefix}" ]; then
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rtsol_available=no
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rtsol_interface=no
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@ -584,7 +641,7 @@ network6_interface_setup()
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esac
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done
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fi
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eval ipv6_ifconfig=\$ipv6_ifconfig_$i
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ipv6_ifconfig=`get_if_var $i ipv6_ifconfig_IF`
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if [ -n "${ipv6_ifconfig}" ]; then
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rtsol_available=no
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rtsol_interface=no
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@ -619,7 +676,7 @@ network6_interface_setup()
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for i in $interfaces; do
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alias=0
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while : ; do
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eval ipv6_ifconfig=\$ipv6_ifconfig_${i}_alias${alias}
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ipv6_ifconfig=`get_if_var $i ipv6_ifconfig_IF_alias${alias}`
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if [ -z "${ipv6_ifconfig}" ]; then
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break;
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fi
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@ -695,7 +752,7 @@ network6_static_routes_setup()
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;;
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*)
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for i in ${ipv6_static_routes}; do
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eval ipv6_route_args=\$ipv6_route_${i}
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ipv6_route_args=`get_if_var $i ipv6_route_IF`
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route add -inet6 ${ipv6_route_args}
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done
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;;
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@ -364,6 +364,22 @@ to start the DHCP client in background.
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This can cause trouble with applications depending on
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a working network, but it will provide a faster startup
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in many cases.
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.It Va syncronous_dhclient
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.Pq Bt bool
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Set to
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.Dq Li NO
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to start
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.Xr dhclient 8
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only in response to interface events and not syncronously at startup.
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This behavior can be overridden on a per-interface basis by replacing
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the
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.Dq Li DHCP
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keyword in the
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.Va ifconfig_ Ns Aq Ar interface
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variable with
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.Dq Li SYNCDHCP
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or
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.Dq Li NOSYNCDHCP .
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.It Va firewall_enable
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.Pq Vt bool
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Set to
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@ -942,19 +958,25 @@ for more information.
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Set to the list of network interfaces to configure on this host or
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.Dq Li AUTO
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(the default) for all current interfaces.
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For example, if the only active network devices in the system
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are the loopback device
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.Pq Li lo0
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and a NIC using the
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.Xr ed 4
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driver,
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this could be set to
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.Dq Li "lo0 ed0" .
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Setting the
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.Va network_interfaces
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variable to anything other than the default is deprecated.
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Interfaces that the administrator wishes to store configration for,
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but not start at boot should be configured with the
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.Dq Li NOAUTO
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keyword in their
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.Va ifconfig_ Ns Aq Ar interface
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variables as described below.
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.Pp
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An
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.Va ifconfig_ Ns Aq Ar interface
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variable is also assumed to exist for each value of
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.Ar interface .
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When an interface name contains any of the characters
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.Dq Li .-/+
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they are translated to
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.Dq Li _
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before lookup.
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The variable can contain arguments to
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.Xr ifconfig 8 ,
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as well as special case-insensitive keywords described below.
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