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authortv <tv@krebsco.de>2018-12-11 22:49:14 +0100
committertv <tv@krebsco.de>2018-12-11 22:54:49 +0100
commitcee44811cdc5fbc0d46efd96439885065627aa1a (patch)
tree252bdd17a73c6f7fec7557ef2d6fc481fdd02a0d /lib
parentb6e1cef6a5d0235a049b8d7606ebf053d8ab1516 (diff)
lib.krebs.genipv6: use normalize-ip6-addr
Diffstat (limited to 'lib')
-rw-r--r--lib/krebs/genipv6.nix35
1 files changed, 22 insertions, 13 deletions
diff --git a/lib/krebs/genipv6.nix b/lib/krebs/genipv6.nix
index 8e105ab49..bf3ebab38 100644
--- a/lib/krebs/genipv6.nix
+++ b/lib/krebs/genipv6.nix
@@ -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));