1 if [ ! "$_NETWORKING_NETMASK_SUBR" ]; then _NETWORKING_NETMASK_SUBR=1
3 # Copyright (c) 2006-2013 Devin Teske
6 # Redistribution and use in source and binary forms, with or without
7 # modification, are permitted provided that the following conditions
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.
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
29 ############################################################ INCLUDES
31 BSDCFG_SHARE="/usr/share/bsdconfig"
32 . $BSDCFG_SHARE/common.subr || exit 1
33 f_dprintf "%s: loading includes..." networking/netmask.subr
34 f_include $BSDCFG_SHARE/dialog.subr
35 f_include $BSDCFG_SHARE/networking/common.subr
36 f_include $BSDCFG_SHARE/strings.subr
38 BSDCFG_LIBE="/usr/libexec/bsdconfig" APP_DIR="120.networking"
39 f_include_lang $BSDCFG_LIBE/$APP_DIR/include/messages.subr
41 ############################################################ FUNCTIONS
43 # f_dialog_maskerror $error $netmask
45 # Display a msgbox with the appropriate error message for an error returned by
46 # the f_validate_netmask function.
50 local error="$1" netmask="$2"
52 [ ${error:-0} -ne 0 ] || return $SUCCESS
55 1) f_show_msg "$msg_ipv4_mask_field_contains_invalid_chars" "$mask" ;;
56 2) f_show_msg "$msg_ipv4_mask_field_is_null" "$mask" ;;
57 3) f_show_msg "$msg_ipv4_mask_field_exceeds_max_value" "$mask" ;;
58 4) f_show_msg "$msg_ipv4_mask_field_missing_or_extra" "$mask" ;;
59 5) f_show_msg "$msg_ipv4_mask_field_invalid_value" "$mask" ;;
63 # f_dialog_validate_netmask $netmask
65 # Returns zero if the given argument (a subnet mask) is of the proper format.
67 # If the subnet mask is determined to be invalid, the appropriate error will be
68 # displayed using the f_dialog_maskerror function above.
70 f_dialog_validate_netmask()
74 f_validate_netmask "$netmask"
77 # Produce an appropriate error message if necessary.
78 [ $retval -eq $SUCCESS ] || f_dialog_maskerror $retval "$netmask"
83 # f_dialog_input_netmask $interface $netmask
85 # Edits the IP netmask of the given interface.
87 f_dialog_input_netmask()
89 local interface="$1" _netmask="$2" _input
92 # Return with-error when there are NFS-mounts currently active. If the
93 # subnet mask is changed while NFS-exported directories are mounted,
94 # the system may hang (if any NFS mounts are using that interface).
96 if f_nfs_mounted && ! f_jailed; then
98 f_sprintf setting "$msg_current_subnet" \
99 "$interface" "$_netmask"
100 f_noyes "$msg_nfs_mounts_may_cause_hang" "$setting" ||
101 return $DIALOG_CANCEL
105 # Loop until the user provides taint-free input.
108 f_sprintf msg "$msg_please_enter_subnet_mask" "$interface"
111 # Return error status if:
112 # - User has either pressed ESC or chosen Cancel/No
113 # - User has not made any changes to the given value
115 f_dialog_input _input "$msg" "$_netmask" \
116 "$hline_num_punc_tab_enter" || return $?
117 [ "$_netmask" = "$_input" ] && return $DIALOG_CANCEL
119 # Return success if NULL value was entered
120 [ "$_input" ] || return $DIALOG_OK
122 # Take only the first "word" of the user's input
124 _netmask="${_netmask%%[$IFS]*}"
126 # Taint-check the user's input
127 f_dialog_validate_netmask "$_netmask" && break
133 ############################################################ MAIN
135 f_dprintf "%s: Successfully loaded." networking/netmask.subr
137 fi # ! $_NETWORKING_NETMASK_SUBR