97 lines
1.8 KiB
Bash
97 lines
1.8 KiB
Bash
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#!/bin/bash
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#
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# bird-mkroa
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# author: hexa-
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#
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# get updates from net.dn42.registry/utils/roa/
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#
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<<EOF
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Load the ROA-Table from BIRD4_ROA_CFG like this:
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roa table dn42_roa {
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include "roa4.conf";
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};
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Check in your filters like this:
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if (roa_check(dn42_roa, net, bgp_path.last) = ROA_INVALID) then {
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print "[dn42] ROA check failed for ", net, " ASN ", bgp_path.last;
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reject;
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}
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EOF
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#
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# Configuration
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#
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REGISTRY="/etc/bird/registry"
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BIRD4C=birdc
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BIRD4_ROA_CFG="/var/lib/bird/bird_roa_dn42.conf"
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BIRD4_MAX_PREFIXLEN=28
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BIRD6C=birdc6
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BIRD6_ROA_CFG="/var/lib/bird/bird6_roa_dn42.conf"
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BIRD6_MAX_PREFIXLEN=64
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#
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# End of configuration
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#
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# check if git repository exists
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if [ ! -d "$REGISTRY/.git" ]; then
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>&2 echo "registry directory does not exist;"
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exit 1
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fi
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pushd $REGISTRY
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git pull
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popd
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function mkroa() {
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# based on utils/roa/genroa.sh by fritz@grimpen.net
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for i in $*
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do
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route=$(grep -E "route[6]?:" $i | tr -d '[:blank:]' | cut -d':' -f2-)
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origin=$(grep "origin:" $i | tr -d '[:blank:][:alpha:]' | cut -d':' -f2)
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if [ -z "$origin" -o -z "$route" -o -n "$(echo $as | tr -d '[:digit:]')" ]
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then
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>&2 echo "$i is invalid"
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continue
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fi
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prefixlen=$(echo $route | cut -d'/' -f2)
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if [ $MAX_PREFIXLEN -gt $prefixlen ]; then
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prefixlen=$MAX_PREFIXLEN
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fi
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while read -r asn
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do
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echo "roa $route max $prefixlen as $asn;"
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done <<< "$origin"
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done
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}
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MAX_PREFIXLEN=$BIRD4_MAX_PREFIXLEN mkroa $REGISTRY/data/route/* > $BIRD4_ROA_CFG
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MAX_PREFIXLEN=$BIRD6_MAX_PREFIXLEN mkroa $REGISTRY/data/route6/* > $BIRD6_ROA_CFG
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BIRD4_CHECK=$($BIRD4C configure check | grep error)
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if [[ -z $BIRD4_CHECK ]]; then
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$BIRD4C configure >/dev/null
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else
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>&2 echo $BIRD4_CHECK
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fi
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BIRD6_CHECK=$($BIRD6C configure check | grep error)
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if [[ -z $BIRD6_CHECK ]]; then
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$BIRD6C configure >/dev/null
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else
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>&2 echo $BIRD6_CHECK
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fi
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