1if [ ! "$_NETWORKING_ROUTING_SUBR" ]; then _NETWORKING_ROUTING_SUBR=1
2#
3# Copyright (c) 2006-2013 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#
28############################################################ INCLUDES
29
30BSDCFG_SHARE="/usr/share/bsdconfig"
31. $BSDCFG_SHARE/common.subr || exit 1
32f_dprintf "%s: loading includes..." networking/routing.subr
33f_include $BSDCFG_SHARE/dialog.subr
34f_include $BSDCFG_SHARE/media/tcpip.subr
35f_include $BSDCFG_SHARE/networking/common.subr
36f_include $BSDCFG_SHARE/networking/ipaddr.subr
37f_include $BSDCFG_SHARE/strings.subr
38f_include $BSDCFG_SHARE/sysrc.subr
39
40BSDCFG_LIBE="/usr/libexec/bsdconfig" APP_DIR="120.networking"
41f_include_lang $BSDCFG_LIBE/$APP_DIR/include/messages.subr
42
43############################################################ FUNCTIONS
44
45# f_dialog_input_defaultrouter
46#
47# Edits the default router.
48#
49f_dialog_input_defaultrouter()
50{
51	local funcname=f_dialog_input_defaultrouter
52
53	#
54	# Get the defaultrouter. When this is not configured, the default is
55	# "NO", however we don't ever want to present this default to the user
56	# in the following dialog. If the current value is "NO", then try to
57	# obtain the value from the running system using route(8).
58	#
59	# NOTE: Our `f_route_get_default' function will return NULL if the
60	# system does not have an active default router set (which is what we
61	# want).
62	#
63	local defaultrouter="$( f_sysrc_get 'defaultrouter:-NO' )"
64	local defaultrouter_orig="$defaultrouter" # for change-tracking
65	case "$defaultrouter" in
66	[Nn][Oo]) f_route_get_default defaultrouter ;;
67	esac
68
69	#
70	# Return with-error when there are NFS-mounts currently active. If the
71	# default router/gateway is changed while NFS-exported directories are
72	# mounted, the system will hang.
73	#
74	if f_nfs_mounted && ! f_jailed; then
75		local setting
76		f_sprintf setting "$msg_current_default_router" \
77		                  "$defaultrouter"
78		f_noyes "$msg_nfs_mounts_may_cause_hang" "$setting" ||
79			return $DIALOG_CANCEL
80	fi
81
82	#
83	# Loop until the user provides taint-free input.
84	#
85	local retval
86	while :; do
87		f_dialog_input defaultrouter \
88		               "$msg_please_enter_default_router" \
89		               "$defaultrouter" "$hline_num_punc_tab_enter"
90		retval=$?
91		[ "$defaultrouter" ] || return $DIALOG_OK
92		[ $retval -eq $DIALOG_OK ] || return $retval
93
94		# Taint-check the user's input
95		f_dialog_validate_ipaddr "$defaultrouter" && break
96	done
97
98	#
99	# Save only if the user changed the default router/gateway.
100	#
101	if [ "$defaultrouter" != "$defaultrouter_orig" ]; then
102		f_dialog_info "$msg_saving_default_router"
103
104		# Save the default router/gateway
105		f_eval_catch $funcname f_sysrc_set \
106			'f_sysrc_set defaultrouter "%s"' "$defaultrouter"
107	fi
108
109	#
110	# Only ask to apply setting if the current defaultrouter is different
111	# than the stored configuration (in rc.conf(5)).
112	#
113	local dr
114	f_route_get_default dr
115	if [ "$dr" != "$defaultrouter" ]; then
116		f_dialog_clear
117		f_yesno "$msg_activate_default_router" "$dr" "$defaultrouter"
118		if [ $? -eq $DIALOG_OK ]; then
119			# Apply the default router/gateway
120			f_eval_catch -d $funcname route 'route delete default'
121			f_eval_catch $funcname route \
122				'route add default "%s"' "$defaultrouter" ||
123				return $DIALOG_CANCEL
124		fi
125	fi
126}
127
128############################################################ MAIN
129
130f_dprintf "%s: Successfully loaded." networking/routing.subr
131
132fi # ! $_NETWORKING_ROUTING_SUBR
133