bcollet/ripe_available_prefixes
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Fix available /24 count

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Benjamin Collet 2022-02-02 06:00:53 +01:00
parent 8c664c90e8
commit 8b63e7b0dc
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1 changed files with 6 additions and 6 deletions
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12
get_prefixes.awk
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@ -27,17 +27,17 @@ function dec2ip(dec_prefix) {
return b1 "." b2 "." b3 "." b4 return b1 "." b2 "." b3 "." b4
} }
function compute_prefix(prefix, count, status, count_alloc) { function compute_prefix(prefix, count, status) {
split(prefix, bytes, ".") split(prefix, bytes, ".")
# Everything in 151.216.0.0/13 is reserved for temporary assignments # Everything in 151.216.0.0/13 is reserved for temporary assignments
if(bytes[1] == 151 && bytes[2] >= 216 && bytes[2] <= 223) { if(bytes[1] == 151 && bytes[2] >= 216 && bytes[2] <= 223) {
return 0 return
} }
# Everything in 185.0.0.0/15 is reserved for IXP assignments # Everything in 185.0.0.0/15 is reserved for IXP assignments
if(bytes[1] == 185 && bytes[2] <= 1) { if(bytes[1] == 185 && bytes[2] <= 1) {
return 0 return
} }
for(i = 4; i >= 0; i--) { for(i = 4; i >= 0; i--) {
@ -59,9 +59,9 @@ function compute_prefix(prefix, count, status, count_alloc) {
if(remainder > 0) { if(remainder > 0) {
new_prefix = dec2ip(ip2dec(prefix) + max_count) new_prefix = dec2ip(ip2dec(prefix) + max_count)
count_alloc = count_alloc + compute_prefix(new_prefix, remainder, status, count_alloc) compute_prefix(new_prefix, remainder, status)
} }
return count_alloc return
} }
} }
} }
@ -72,7 +72,7 @@ BEGIN {
count_alloc = 0 count_alloc = 0
} }
$3 == "ipv4" && $7 ~ /(reserved|available)/ && $5 >= 256 { $3 == "ipv4" && $7 ~ /(reserved|available)/ && $5 >= 256 {
count_alloc = compute_prefix($4, $5, $7, count_alloc) compute_prefix($4, $5, $7)
} }
END { END {
print "Number of /24 available for future allocation: " count_alloc print "Number of /24 available for future allocation: " count_alloc