projects / people / stevee / network.git / blame
| Commit | Line | Data |
|---|---|---|
| 05c234a8 MT |
1 | #!/bin/bash |
| 2 | ############################################################################### | |
| 3 | # # | |
| 4 | # IPFire.org - A linux based firewall # | |
| 5 | # Copyright (C) 2010 Michael Tremer & Christian Schmidt # | |
| 6 | # # | |
| 7 | # This program is free software: you can redistribute it and/or modify # | |
| 8 | # it under the terms of the GNU General Public License as published by # | |
| 9 | # the Free Software Foundation, either version 3 of the License, or # | |
| 10 | # (at your option) any later version. # | |
| 11 | # # | |
| 12 | # This program is distributed in the hope that it will be useful, # | |
| 13 | # but WITHOUT ANY WARRANTY; without even the implied warranty of # | |
| 14 | # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the # | |
| 15 | # GNU General Public License for more details. # | |
| 16 | # # | |
| 17 | # You should have received a copy of the GNU General Public License # | |
| 18 | # along with this program. If not, see <http://www.gnu.org/licenses/>. # | |
| 19 | # # | |
| 20 | ############################################################################### | |
| 21 | ||
| 22 | function ipv4_split_prefix() { | |
| 23 | ip_split_prefix $@ | |
| 24 | } | |
| 25 | ||
| 26 | function ipv4_is_valid() { | |
| 27 | local address=${1} | |
| 28 | ||
| 29 | assert isset address | |
| 30 | ||
| 31 | # Cut the /24 if there is one given | |
| 32 | address=$(ipv4_split_prefix ${address}) | |
| 33 | ||
| 34 | local IFS="." | |
| 35 | local octet | |
| 36 | local count | |
| 37 | for octet in ${address}; do | |
| 38 | if [ ${octet} -ge 0 ] && [ ${octet} -le 255 ]; then | |
| 39 | count=$(( ${count} + 1 )) | |
| 40 | continue | |
| 41 | fi | |
| 42 | ||
| 43 | # If we get here the address was not valid | |
| 44 | break | |
| 45 | done | |
| 46 | ||
| 47 | if [ ${count} -eq 4 ]; then | |
| 48 | return ${EXIT_OK} | |
| 49 | fi | |
| 50 | ||
| 51 | return ${EXIT_ERROR} | |
| 52 | } | |
| 53 | ||
| 54 | function ipv4_detect_duplicate() { | |
| 55 | local device=${1} | |
| 56 | local address=${2} | |
| 57 | ||
| 58 | assert isset address | |
| 59 | assert isset device | |
| 60 | assert device_exists ${device} | |
| 61 | ||
| 62 | if ! arping -q -c 2 -w 3 -D -I ${device} ${address}; then | |
| 63 | log DEBUG "Detected duplicate address '${address}' on device '${device}'." | |
| 64 | return ${EXIT_ERROR} | |
| 65 | fi | |
| 66 | ||
| 67 | return ${EXIT_OK} | |
| 68 | } | |
| 69 | ||
| 70 | function ipv4_update_neighbours() { | |
| 71 | local device=${1} | |
| 72 | local address=${2} | |
| 73 | ||
| 74 | arping -q -A -c 1 -I ${device} ${address} | |
| 75 | ( sleep 2; arping -q -U -c 1 -I ${device} ${address} ) >/dev/null 2>&1 </dev/null & | |
| 76 | } |