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-rw-r--r--filehooker/root-image/krebs/lib/retiolum99
1 files changed, 99 insertions, 0 deletions
diff --git a/filehooker/root-image/krebs/lib/retiolum b/filehooker/root-image/krebs/lib/retiolum
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+++ b/filehooker/root-image/krebs/lib/retiolum
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+#!/bin/sh
+# retiolum host functions
+#@include core
+#@include network
+tinc_path=${tinc_path:-/etc/tinc}
+netname=${netname:-retiolum}
+hosts_dir=${hosts_dir:-$tinc_path/$netname/hosts}
+supernode_urls="http://euer.krebsco.de/retiolum/supernodes.tar.gz"
+reload_tinc(){
+ info "reloading tinc configuration"
+ pkill -HUP tincd || tinc -n $netname reload;
+}
+
+refresh_supernode_keys(){
+ for url in $supernode_urls;do
+ info "Trying $url to retrieve supernodes"
+ if http_get "$url" \
+ | tar xvz -C $hosts_dir | xargs -n1 echo "refreshed:" ;then
+ info "refreshed supernode keys"
+ return 0
+ else
+ error "$url unusable for retrieving supernode host files"
+ fi
+ done && return 1
+}
+
+find_supernodes(){
+ cd $hosts_dir
+ set +f
+ for name in `
+ grep '^[ ]*Address[ ]*=' * |
+ cut -d: -f1 | sort | uniq
+ `; do
+ if eval "`sed -n '
+ s/[ ]\+//g
+ s/^\(Address\|Port\)=\(.*\)/\1="\${\1+\$\1\n}\2"/p
+ ' $name`"; then
+ port=${Port-655}
+ for host in $Address; do
+ if nc -zw 2 $host $port 2>/dev/null; then
+ echo "$name [('$host', $port)]"
+ fi &
+ done
+ wait
+ fi &
+ done
+ wait
+ cd - >/dev/null
+}
+
+find_active_nodes(){
+ # TODO this function currently only supports a single address for a host
+ cd $hosts_dir
+ # posix grep does not support [[:space:]]
+ set +f
+ for name in `
+ grep '^[ ]*Address[ ]*=' * |
+ cut -d: -f1 | sort | uniq
+ `; do
+ if eval "`sed -n '
+ s/[ ]\+//g
+ s/^\(Address\|Port\)=\(.*\)/\1="\${\1+\$\1\n}\2"/p
+ ' $name`"; then
+ port=${Port-655}
+ for host in $Address; do
+ if nc -zw 2 $host $port 2>/dev/null; then
+ echo "$name [('$host', $port)]"
+ fi &
+ done
+ wait
+ fi &
+ done
+ wait
+ cd - >/dev/null
+}
+
+check_free_v4(){
+ myipv4=${1-10.243.0.-1}
+ v4num=${myipv4##*.}
+ printf "Retard check: "
+ if [ "$v4num" -gt 0 -a "$v4num" -lt "256" ];
+ then
+ info "No retard detected\n"
+ cd $hosts_dir
+ info "Check if ip is still free: "
+ for i in `ls -1`; do
+ if grep -q -e $myipv4\$ $i ;then
+ error "Host IP already taken by $i! "
+ return 1
+ fi
+ done
+ info "Passed\n"
+ return 0
+ else
+ error "you are made of stupid. bailing out\n"
+ return 1
+ fi
+ cd - >/dev/null
+}