makefu/stockholm
1
0
Fork 0
Code Issues Pull requests Actions 1 Packages Projects Releases Wiki Activity

lib.krebs.genipv6: use normalize-ip6-addr

Browse source
This commit is contained in:
tv 2018-12-11 22:49:14 +01:00
parent b6e1cef6a5
commit cee44811cd
1 changed files with 22 additions and 13 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

35
lib/krebs/genipv6.nix
View file

@ -3,18 +3,16 @@ with lib;
let {
body = netname: subnetname: suffixSpec: rec {
address = let
suffix' =
if hasEmptyGroup (parseAddress suffix)
then suffix
else joinAddress "::" suffix;
suffix' = prependZeros suffixLength suffix;
in
checkAddress addressLength (joinAddress subnetPrefix suffix');
normalize-ip6-addr
(checkAddress addressLength (joinAddress subnetPrefix suffix'));
addressCIDR = "${address}/${toString addressLength}";
addressLength = 128;
inherit netname;
netCIDR = "${netAddress}/${toString netPrefixLength}";
netAddress = joinAddress netPrefix "::";
netAddress = appendZeros netPrefixLength netPrefix;
netHash = toString {
retiolum = 0;
wirelum = 1;
@ -27,22 +25,35 @@ let {
inherit subnetname;
subnetCIDR = "${subnetAddress}/${toString subnetPrefixLength}";
subnetAddress = joinAddress subnetPrefix "::";
subnetHash = simplify (hash 4 subnetname);
subnetAddress = appendZeros subnetPrefixLength subnetPrefix;
subnetHash = hash 4 subnetname;
subnetPrefix = joinAddress netPrefix subnetHash;
subnetPrefixLength = netPrefixLength + 16;
suffix = getAttr (typeOf suffixSpec) {
set =
concatMapStringsSep
concatStringsSep
":"
simplify
(stringToGroupsOf 4 (hash (suffixLength / 8) suffixSpec.hostName));
(stringToGroupsOf 4 (hash (suffixLength / 4) suffixSpec.hostName));
string = suffixSpec;
};
suffixLength = addressLength - subnetPrefixLength;
};
appendZeros = n: s: let
n' = n / 16;
zeroCount = n' - length parsedaddr;
parsedaddr = parseAddress s;
in
formatAddress (parsedaddr ++ map (const "0") (range 1 zeroCount));
prependZeros = n: s: let
n' = n / 16;
zeroCount = n' - length parsedaddr;
parsedaddr = parseAddress s;
in
formatAddress (map (const "0") (range 1 zeroCount) ++ parsedaddr);
# Split string into list of chunks where each chunk is at most n chars long.
# The leftmost chunk might shorter.
# Example: stringToGroupsOf "123456" -> ["12" "3456"]
@ -64,8 +75,6 @@ let {
in
filter (x: x != []) ([acc.chunk] ++ acc.chunks);
simplify = s: head (match "0*(.+)" s);
hash = n: s: substring 0 n (hashString "sha256" s);
dropLast = n: xs: reverseList (drop n (reverseList xs));