1if [ ! "$_MEDIA_NETWORK_SUBR" ]; then _MEDIA_NETWORK_SUBR=1 2# 3# Copyright (c) 2012-2013 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 (INCLUDING, 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..." media/network.subr 34f_include $BSDCFG_SHARE/dialog.subr 35f_include $BSDCFG_SHARE/media/tcpip.subr 36 37BSDCFG_LIBE="/usr/libexec/bsdconfig" 38f_include_lang $BSDCFG_LIBE/include/messages.subr 39 40############################################################ GLOBALS 41 42NETWORK_INITIALIZED= 43 44############################################################ FUNCTIONS 45 46# f_media_init_network $device 47# 48# Initialize a network device (such as `fxp0', `em0', etc.). Returns success if 49# able to successfully initialize the device. If not running as init (basically 50# from the FreeBSD install media) then assume that the network has already been 51# initialized and returns success. 52# 53# The variables (from variable.subr) used to initialize the network are as 54# follows (all of which are configured either automatically or manually): 55# 56# VAR_IFCONFIG + device_name (e.g., `ifconfig_em0') 57# Automatically populated but can be overridden in a script. This 58# defines the ifconfig(8) properties specific to a chosen network 59# interface device. Optional if VAR_IPV6ADDR is set. 60# VAR_IPV6ADDR [Optional] 61# If not running as init (and setting up RTSOL connections for 62# the interface), then must be set manually. If set, used as the 63# IPv6 configuration for the given network interface device. 64# VAR_GATEWAY [Optional] 65# If not running as init (and setting up a static connection for 66# the interface) then must be set (usually via rc.conf(5), but 67# can be set manually to override). If unset, the user is warned 68# but not prevented from proceeding (as most connections need a 69# default route but not everyone). 70# 71f_media_init_network() 72{ 73 local dev="$1" 74 75 f_dprintf "Init routine called for network device \`%s'." "$dev" 76 if [ "$NETWORK_INITIALIZED" ]; then 77 f_dprintf "Network already initialized." 78 return $SUCCESS 79 elif ! f_running_as_init; then 80 f_dprintf "Not running as init -- calling the deed done." 81 NETWORK_INITIALIZED=1 82 return $SUCCESS 83 fi 84 85 if [ ! -e "$RESOLV_CONF" ]; then 86 if ! f_config_resolv; then 87 f_show_msg "$msg_cant_seem_to_write_out_resolv_conf" \ 88 "$RESOLV_CONF" 89 return $FAILURE 90 fi 91 fi 92 93 local cp 94 if f_getvar $VAR_IFCONFIG$dev cp; then 95 # 96 # If this interface isn't a DHCP one, bring it up. 97 # If it is, then it's already up. 98 # 99 case "$cp" in 100 *DHCP*) 101 f_dprintf "A DHCP interface. Should already be up." 102 ;; 103 *) 104 f_dprintf "Not a DHCP interface." 105 if ! f_quietly ifconfig "$dev" $cp; then 106 f_show_msg "$msg_unable_to_configure_device" \ 107 "$dev" 108 return $FAILURE 109 fi 110 local rp 111 f_getvar $VAR_GATEWAY rp 112 if [ ! "$rp" ]; then 113 f_show_msg "$msg_no_gateway_has_been_set" 114 else 115 # 116 # Explicitly flush all routes to get back to a 117 # known sane state. We don't need to check this 118 # exit code because if anything fails it will 119 # show up in the route add below. 120 # 121 f_quietly route -n flush 122 f_dprintf "Adding default route to %s." "$rp" 123 if ! f_quietly route -n add default "$rp"; then 124 f_show_msg \ 125 "$msg_failed_to_add_default_route" 126 return $FAILURE 127 fi 128 fi 129 esac 130 elif ! { f_getvar $VAR_IPV6ADDR cp && [ "$cp" ]; }; then 131 f_show_msg "$msg_device_is_not_configured" "$dev" 132 return $FAILURE 133 fi 134 135 f_dprintf "Network initialized successfully." 136 NETWORK_INITIALIZED=1 137 return $SUCCESS 138} 139 140# f_media_shutdown_network $device 141# 142# Shuts down the configured network device (e.g., `fxp0', `em0', etc.) and 143# deletes the default route (if configured). Returns failure if the device 144# passed has not been configured. If not running as init (basically from the 145# FreeBSD install media) then does nothing and returns success. 146# 147f_media_shutdown_network() 148{ 149 local dev="$1" cp 150 151 f_dprintf "Shutdown called for network device %s" "$dev" 152 if [ ! "$NETWORK_INITIALIZED" ]; then 153 f_dprintf "Network not initialized -- nothing to do." 154 return $SUCCESS 155 fi 156 157 unset NETWORK_INITIALIZED 158 unset $VAR_NETWORK_DEVICE 159 160 if ! f_running_as_init; then 161 f_dprintf "Not running as init -- calling the deed done." 162 return $SUCCESS 163 fi 164 165 f_getvar $VAR_IFCONFIG$dev cp || return $FAILURE 166 f_dprintf "ifconfig %s down" "$dev" 167 f_quietly ifconfig $dev down || 168 f_show_msg "$msg_unable_to_down_the_interface_properly" "$dev" 169 170 if f_getvar $VAR_GATEWAY cp; then 171 f_dprintf "Deleting default route." 172 f_quietly route -n delete default 173 fi 174 175 return $SUCCESS 176} 177 178############################################################ MAIN 179 180f_dprintf "%s: Successfully loaded." media/network.subr 181 182fi # ! $_MEDIA_NETWORK_SUBR 183