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Diffstat (limited to 'net-scripts/net.modules.d/apipa')
| -rw-r--r-- | net-scripts/net.modules.d/apipa | 47 |
1 files changed, 47 insertions, 0 deletions
diff --git a/net-scripts/net.modules.d/apipa b/net-scripts/net.modules.d/apipa new file mode 100644 index 0000000..9e6bbfa --- /dev/null +++ b/net-scripts/net.modules.d/apipa @@ -0,0 +1,47 @@ +#!/bin/bash +# Copyright (c) 2004-2005 Gentoo Foundation +# Distributed under the terms of the GNU General Public License v2 + +# Contributed by Roy Marples (uberlord@gentoo.org) +# void apipa_depend(void) +# +# Sets up the dependancies for the module +apipa_depend() { + installed arping + functions interface_exists +} + +# bool apipa_start(char *iface) +# +# Tries to detect a config based on arpinging things +apipa_start() { + local iface="$1" i1 i2 addr i=0 + + interface_exists "$1" true || return 1 + + einfo "Searching for free addresses in 169.254.0.0/16" + eindent + + while [[ ${i} -lt 64516 ]]; do + (( i1=${RANDOM}%255 )) + (( i2=${RANDOM}%255 )) + + addr="169.254.${i1}.${i2}" + vebegin "${addr}/16" + if ! arping_address_exists "${iface}" "${addr}" ; then + config[config_counter]="${addr}/16 broadcast 169.254.255.255" + (( config_counter-- )) + veend 0 + eoutdent + return 0 + fi + + (( i++ )) + done + + eerror "No free address found!" + eoutdent + return 1 +} + +# vim:ts=4 |