1if [ ! "$_NETWORKING_ROUTING_SUBR" ]; then _NETWORKING_ROUTING_SUBR=1 2# 3# Copyright (c) 2006-2012 Devin Teske 4# All Rights Reserved. 5# 6# Redistribution and use in source and binary forms, with or without 7# modification, are permitted provided that the following conditions 8# are met: 9# 1. Redistributions of source code must retain the above copyright 10# notice, this list of conditions and the following disclaimer. 11# 2. Redistributions in binary form must reproduce the above copyright 12# notice, this list of conditions and the following disclaimer in the 13# documentation and/or other materials provided with the distribution. 14# 15# THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 16# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING BUT NOT LIMITED TO, THE 17# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 18# ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 19# FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 20# DAMAGES (INLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 21# OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 22# HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 23# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 24# OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 25# SUCH DAMAGE. 26# 27# $FreeBSD$ 28# 29############################################################ INCLUDES 30 31BSDCFG_SHARE="/usr/share/bsdconfig" 32. $BSDCFG_SHARE/common.subr || exit 1 33f_dprintf "%s: loading includes..." networking/routing.subr 34f_include $BSDCFG_SHARE/sysrc.subr 35f_include $BSDCFG_SHARE/dialog.subr 36f_include $BSDCFG_SHARE/networking/common.subr 37f_include $BSDCFG_SHARE/networking/ipaddr.subr 38 39BSDCFG_LIBE="/usr/libexec/bsdconfig" APP_DIR="120.networking" 40f_include_lang $BSDCFG_LIBE/$APP_DIR/include/messages.subr 41 42############################################################ FUNCTIONS 43 44# f_route_get_default 45# 46# Returns the IP address of the currently active default router. 47# 48f_route_get_default() 49{ 50 route -n get default 2> /dev/null | awk \ 51 ' 52 BEGIN { found = 0 } 53 ( $1 == "gateway:" ) \ 54 { 55 print $2 56 found = 1 57 exit 58 } 59 END { exit ! found } 60 ' 61} 62 63# f_dialog_input_defaultrouter 64# 65# Edits the default router. 66# 67f_dialog_input_defaultrouter() 68{ 69 # 70 # Get the defaultrouter. When this is not configured, the default is 71 # "NO", however we don't ever want to present this default to the user 72 # in the following dialog. If the current value is "NO", then try to 73 # obtain the value from the running system using route(8). 74 # 75 # NOTE: Our `f_route_get_default' function will return NULL if the 76 # system does not have an active default router set (which is what we 77 # want). 78 # 79 local defaultrouter="$( f_sysrc_get 'defaultrouter:-NO' )" 80 local defaultrouter_orig="$defaultrouter" # for change-tracking 81 case "$defaultrouter" in 82 [Nn][Oo]) 83 defaultrouter=$( f_route_get_default ) 84 ;; 85 esac 86 87 # 88 # Return with-error when there are NFS-mounts currently active. If the 89 # default router/gateway is changed while NFS-exported directories are 90 # mounted, the system will hang. 91 # 92 if f_nfs_mounted && ! f_jailed; then 93 local setting="$( printf "$msg_current_default_router" \ 94 "$defaultrouter" )" 95 f_show_msg "$msg_nfs_mounts_may_cause_hang" "$setting" 96 return $FAILURE 97 fi 98 99 # 100 # Loop until the user provides taint-free input. 101 # 102 local retval 103 while :; do 104 defaultrouter=$( f_dialog_input \ 105 "$msg_please_enter_default_router" \ 106 "$defaultrouter" "$hline_num_punc_tab_enter" 107 ) 108 retval=$? 109 [ "$defaultrouter" ] || return $SUCCESS 110 [ $retval -eq $SUCCESS ] || return $retval 111 112 # Taint-check the user's input 113 f_dialog_validate_ipaddr "$defaultrouter" && break 114 done 115 116 # 117 # Save only if the user changed the default router/gateway. 118 # 119 if [ "$defaultrouter" != "$defaultrouter_orig" ]; then 120 f_dialog_info "$msg_saving_default_router" 121 122 # Save the default router/gateway 123 f_sysrc_set defaultrouter "$defaultrouter" 124 fi 125 126 # 127 # Only ask to apply setting if the current defaultrouter is different 128 # than the stored configuration (in rc.conf(5)). 129 # 130 if [ "$( f_route_get_default )" != "$defaultrouter" ]; then 131 f_dialog_clear 132 f_dialog_yesno "$( 133 printf "$msg_activate_default_router" \ 134 "$( f_route_get_default )" "$defaultrouter" 135 )" 136 137 if [ $? -eq $SUCCESS ]; then 138 local err 139 140 # Apply the default router/gateway 141 f_quietly route delete default 142 err=$( route add default "$defaultrouter" 2>&1 ) 143 if [ $? -ne $SUCCESS ]; then 144 f_dialog_msgbox "$err" 145 return $FAILURE 146 fi 147 fi 148 fi 149} 150 151############################################################ MAIN 152 153f_dprintf "%s: Successfully loaded." networking/routing.subr 154 155fi # ! $_NETWORKING_ROUTING_SUBR 156