1if [ ! "$_NETWORKING_NETMASK_SUBR" ]; then _NETWORKING_NETMASK_SUBR=1
2#
3# Copyright (c) 2006-2012 Devin Teske
4# All Rights Reserved.
5#
6# Redistribution and use in source and binary forms, with or without
7# modification, are permitted provided that the following conditions
8# are met:
9# 1. Redistributions of source code must retain the above copyright
10# notice, this list of conditions and the following disclaimer.
11# 2. Redistributions in binary form must reproduce the above copyright
12# notice, this list of conditions and the following disclaimer in the
13# documentation and/or other materials provided with the distribution.
14#
15# THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
16# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING BUT NOT LIMITED TO, THE
17# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
18# ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
19# FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
20# DAMAGES (INLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
21# OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
22# HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
23# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
24# OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
25# SUCH DAMAGE.
26#
| 1if [ ! "$_NETWORKING_NETMASK_SUBR" ]; then _NETWORKING_NETMASK_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: head/usr.sbin/bsdconfig/networking/share/netmask.subr 240684 2012-09-18 22:28:42Z dteske $
| 27# $FreeBSD: head/usr.sbin/bsdconfig/networking/share/netmask.subr 240768 2012-09-20 23:44:13Z dteske $
|
28#
29############################################################ INCLUDES
30
31BSDCFG_SHARE="/usr/share/bsdconfig"
32. $BSDCFG_SHARE/common.subr || exit 1
33f_include $BSDCFG_SHARE/dialog.subr
34f_include $BSDCFG_SHARE/strings.subr
35f_include $BSDCFG_SHARE/networking/common.subr
36
37BSDCFG_LIBE="/usr/libexec/bsdconfig" APP_DIR="120.networking"
38f_include_lang $BSDCFG_LIBE/$APP_DIR/include/messages.subr
39
40############################################################ FUNCTIONS
41
42# f_ifconfig_netmask $interface
43#
44# Returns the IPv4 subnet mask associated with $interface.
45#
46f_ifconfig_netmask()
47{
48 local interface="$1" octets
49 octets=$( ifconfig "$interface" 2> /dev/null | awk \
50 '
51 BEGIN { found = 0 }
52 ( $1 == "inet" ) \
53 {
54 printf "%s %s %s %s\n",
55 substr($4,3,2),
56 substr($4,5,2),
57 substr($4,7,2),
58 substr($4,9,2)
59 found = 1
60 exit
61 }
62 END { exit ! found }
63 ' ) || return $FAILURE
64
65 local octet netmask=
66 for octet in $octets; do
67 netmask="$netmask${netmask:+.}$( printf "%u" "0x$octet" )"
68 done
69 echo $netmask
70}
71
72# f_dialog_validate_netmask $netmask
73#
74# Returns zero if the given argument (a subnet mask) is of the proper format.
75#
76# The return status for invalid IP address is one of:
77# 1 One or more individual fields within the subnet mask (separated
78# by dots) contains one or more invalid characters.
79# 2 One or more individual fields within the subnet mask are null
80# and/or missing.
81# 3 One or more individual fields within the subnet mask exceeds
82# the maximum of 255 (a full 8-bit register).
83# 4 The subnet mask has either too few or too many fields.
84# 5 One or more individual fields within the subnet mask is an
85# invalid integer (only 0,128,192,224,240,248,252,254,255 are
86# valid integers).
87#
88# If the subnet mask is determined to be invalid, the appropriate error will be
89# displayed using the f_dialog_msgbox function.
90#
91f_dialog_validate_netmask()
92{
93 local mask="$1"
94
95 ( # Operate within a sub-shell to protect the parent environment
96
97 # Track number of fields for error checking
98 nfields=0
99
100 IFS="." # Split on `dot'
101 for field in $mask; do
102
103 # Return error if the field is null
104 [ "$field" ] || exit 2
105
106 # Return error if not a whole positive integer
107 f_isinteger "$field" || exit 1
108
109 # Return error if the field exceeds 255
110 [ $field -gt 255 ] && exit 3
111
112 # Return error if the field is an invalid integer
113 case "$field" in
114 0|128|192|224|240|248|252|254|255) :;;
115 *) exit 5;;
116 esac
117
118 nfields=$(( $nfields + 1 ))
119
120 done
121
122 [ $nfields -eq 4 ] || exit 4
123 )
124
125 #
126 # Produce an appropriate error message if necessary.
127 #
128 local retval=$?
129 case $retval in
130 1) f_dialog_msgbox "$( printf \
131 "$msg_ipv4_mask_field_contains_invalid_chars" "$mask" )";;
132 2) f_dialog_msgbox "$( printf \
133 "$msg_ipv4_mask_field_is_null" "$mask" )";;
134 3) f_dialog_msgbox "$( printf \
135 "$msg_ipv4_mask_field_exceeds_max_value" "$mask" )";;
136 4) f_dialog_msgbox "$( printf \
137 "$msg_ipv4_mask_field_missing_or_extra" "$mask" )";;
138 5) f_dialog_msgbox "$( printf \
139 "$msg_ipv4_mask_field_invalid_value" "$mask" )";;
140 esac
141
142 return $retval
143}
144
145# f_dialog_input_netmask $interface $netmask
146#
147# Edits the IP netmask of the given interface.
148#
149f_dialog_input_netmask()
150{
151 local interface="$1" _netmask="$2" _input
152
153 #
154 # Return with-error when there are NFS-mounts currently active. If the
155 # subnet mask is changed while NFS-exported directories are mounted,
156 # the system may hang (if any NFS mounts are using that interface).
157 #
158 if f_nfs_mounted && ! f_jailed; then
159 local setting="$( printf "$msg_current_subnet" \
160 "$interface" "$_netmask" )"
161 local message="$( printf "$msg_nfs_mounts_may_cause_hang" \
162 "$setting" )"
163 f_dialog_msgbox "$message"
164 return $FAILURE
165 fi
166
167 local msg="$( printf "$msg_please_enter_subnet_mask" "$interface" )"
168 local hline="$hline_num_punc_tab_enter"
169 local size="$( f_dialog_inputbox_size \
170 "$DIALOG_TITLE" \
171 "$DIALOG_BACKTITLE" \
172 "$msg" \
173 "$_netmask" \
174 "$hline" )"
175
176 #
177 # Loop until the user provides taint-free input.
178 #
179 while :; do
| 28#
29############################################################ INCLUDES
30
31BSDCFG_SHARE="/usr/share/bsdconfig"
32. $BSDCFG_SHARE/common.subr || exit 1
33f_include $BSDCFG_SHARE/dialog.subr
34f_include $BSDCFG_SHARE/strings.subr
35f_include $BSDCFG_SHARE/networking/common.subr
36
37BSDCFG_LIBE="/usr/libexec/bsdconfig" APP_DIR="120.networking"
38f_include_lang $BSDCFG_LIBE/$APP_DIR/include/messages.subr
39
40############################################################ FUNCTIONS
41
42# f_ifconfig_netmask $interface
43#
44# Returns the IPv4 subnet mask associated with $interface.
45#
46f_ifconfig_netmask()
47{
48 local interface="$1" octets
49 octets=$( ifconfig "$interface" 2> /dev/null | awk \
50 '
51 BEGIN { found = 0 }
52 ( $1 == "inet" ) \
53 {
54 printf "%s %s %s %s\n",
55 substr($4,3,2),
56 substr($4,5,2),
57 substr($4,7,2),
58 substr($4,9,2)
59 found = 1
60 exit
61 }
62 END { exit ! found }
63 ' ) || return $FAILURE
64
65 local octet netmask=
66 for octet in $octets; do
67 netmask="$netmask${netmask:+.}$( printf "%u" "0x$octet" )"
68 done
69 echo $netmask
70}
71
72# f_dialog_validate_netmask $netmask
73#
74# Returns zero if the given argument (a subnet mask) is of the proper format.
75#
76# The return status for invalid IP address is one of:
77# 1 One or more individual fields within the subnet mask (separated
78# by dots) contains one or more invalid characters.
79# 2 One or more individual fields within the subnet mask are null
80# and/or missing.
81# 3 One or more individual fields within the subnet mask exceeds
82# the maximum of 255 (a full 8-bit register).
83# 4 The subnet mask has either too few or too many fields.
84# 5 One or more individual fields within the subnet mask is an
85# invalid integer (only 0,128,192,224,240,248,252,254,255 are
86# valid integers).
87#
88# If the subnet mask is determined to be invalid, the appropriate error will be
89# displayed using the f_dialog_msgbox function.
90#
91f_dialog_validate_netmask()
92{
93 local mask="$1"
94
95 ( # Operate within a sub-shell to protect the parent environment
96
97 # Track number of fields for error checking
98 nfields=0
99
100 IFS="." # Split on `dot'
101 for field in $mask; do
102
103 # Return error if the field is null
104 [ "$field" ] || exit 2
105
106 # Return error if not a whole positive integer
107 f_isinteger "$field" || exit 1
108
109 # Return error if the field exceeds 255
110 [ $field -gt 255 ] && exit 3
111
112 # Return error if the field is an invalid integer
113 case "$field" in
114 0|128|192|224|240|248|252|254|255) :;;
115 *) exit 5;;
116 esac
117
118 nfields=$(( $nfields + 1 ))
119
120 done
121
122 [ $nfields -eq 4 ] || exit 4
123 )
124
125 #
126 # Produce an appropriate error message if necessary.
127 #
128 local retval=$?
129 case $retval in
130 1) f_dialog_msgbox "$( printf \
131 "$msg_ipv4_mask_field_contains_invalid_chars" "$mask" )";;
132 2) f_dialog_msgbox "$( printf \
133 "$msg_ipv4_mask_field_is_null" "$mask" )";;
134 3) f_dialog_msgbox "$( printf \
135 "$msg_ipv4_mask_field_exceeds_max_value" "$mask" )";;
136 4) f_dialog_msgbox "$( printf \
137 "$msg_ipv4_mask_field_missing_or_extra" "$mask" )";;
138 5) f_dialog_msgbox "$( printf \
139 "$msg_ipv4_mask_field_invalid_value" "$mask" )";;
140 esac
141
142 return $retval
143}
144
145# f_dialog_input_netmask $interface $netmask
146#
147# Edits the IP netmask of the given interface.
148#
149f_dialog_input_netmask()
150{
151 local interface="$1" _netmask="$2" _input
152
153 #
154 # Return with-error when there are NFS-mounts currently active. If the
155 # subnet mask is changed while NFS-exported directories are mounted,
156 # the system may hang (if any NFS mounts are using that interface).
157 #
158 if f_nfs_mounted && ! f_jailed; then
159 local setting="$( printf "$msg_current_subnet" \
160 "$interface" "$_netmask" )"
161 local message="$( printf "$msg_nfs_mounts_may_cause_hang" \
162 "$setting" )"
163 f_dialog_msgbox "$message"
164 return $FAILURE
165 fi
166
167 local msg="$( printf "$msg_please_enter_subnet_mask" "$interface" )"
168 local hline="$hline_num_punc_tab_enter"
169 local size="$( f_dialog_inputbox_size \
170 "$DIALOG_TITLE" \
171 "$DIALOG_BACKTITLE" \
172 "$msg" \
173 "$_netmask" \
174 "$hline" )"
175
176 #
177 # Loop until the user provides taint-free input.
178 #
179 while :; do
|
180 eval $DIALOG \
| 180 local dialog_inputbox
181 dialog_inputbox=$( eval $DIALOG \
|
181 --title \"\$DIALOG_TITLE\" \
182 --backtitle \"\$DIALOG_BACKTITLE\" \
183 --hline \"\$hline\" \
184 --ok-label \"\$msg_ok\" \
185 --cancel-label \"\$msg_cancel\" \
186 --inputbox \"\$msg\" $size \
187 \"\$_netmask\" \
| 182 --title \"\$DIALOG_TITLE\" \
183 --backtitle \"\$DIALOG_BACKTITLE\" \
184 --hline \"\$hline\" \
185 --ok-label \"\$msg_ok\" \
186 --cancel-label \"\$msg_cancel\" \
187 --inputbox \"\$msg\" $size \
188 \"\$_netmask\" \
|
188 2> "$DIALOG_TMPDIR/dialog.inputbox.$$"
| 189 2>&1 >&$DIALOG_TERMINAL_PASSTHRU_FD
190 )
|
189
190 local retval=$?
| 191
192 local retval=$?
|
| 193 setvar DIALOG_INPUTBOX_$$ "$dialog_inputbox"
|
191 _input=$( f_dialog_inputstr )
192
193 #
194 # Return error status if:
195 # - User has not made any changes to the given value
196 # - User has either pressed ESC or chosen Cancel/No
197 #
198 [ "$_netmask" = "$_input" ] && return $FAILURE
199 [ $retval -eq $SUCCESS ] || return $retval
200
201 # Return success if NULL value was entered
202 [ "$_input" ] || return $SUCCESS
203
204 # Take only the first "word" of the user's input
205 _netmask="$_input"
206 _netmask="${_netmask%%[$IFS]*}"
207
208 # Taint-check the user's input
209 f_dialog_validate_netmask "$_netmask" && break
210 done
211
212 netmask="$_netmask"
213}
214
215fi # ! $_NETWORKING_NETMASK_SUBR
| 194 _input=$( f_dialog_inputstr )
195
196 #
197 # Return error status if:
198 # - User has not made any changes to the given value
199 # - User has either pressed ESC or chosen Cancel/No
200 #
201 [ "$_netmask" = "$_input" ] && return $FAILURE
202 [ $retval -eq $SUCCESS ] || return $retval
203
204 # Return success if NULL value was entered
205 [ "$_input" ] || return $SUCCESS
206
207 # Take only the first "word" of the user's input
208 _netmask="$_input"
209 _netmask="${_netmask%%[$IFS]*}"
210
211 # Taint-check the user's input
212 f_dialog_validate_netmask "$_netmask" && break
213 done
214
215 netmask="$_netmask"
216}
217
218fi # ! $_NETWORKING_NETMASK_SUBR
|