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Author SHA1 Message Date
Christian Hesse
9eb2d8c5bd Merge branch 'netmask6' into next
This branch is a follow-up on 9ceed0926a
with clean solution. Read on for details...

The data type `ip6-prefix` used to hold what it was named for - an IPv6
prefix:

    [user@mikrotik] > :put 2001:db8::dead:beef/32
    2001:db8::/32

This changed with RouterOS 6.21beta2, which now allows that exact same
data type to hold something like "address with prefix length attached":

    [user@mikrotik] > :put 2001:db8::dead:beef/32
    2001:db8::dead:beef/32

My scripts (namely `fw-addr-lists`) relied on the old behaviour and broke.
The commit mentioned above was just a quick workaround, with rough edges,
and it could still fail.

Sadly RouterOS does not support bit shifting on IPv6 data types, so a
(completely) mathematical solution is out of scope.

This branch implements a new and better workaround, see the first commit
of branch for details.

I opened a support ticket / feature request on this topic, let's see
what results it brings...

https://help.mikrotik.com/servicedesk/servicedesk/customer/portal/1/SUP-201881
2025-10-19 20:00:38 +02:00
Christian Hesse
b80b872e55 mod/ipcalc: support IPv6
Well, some of these values do not make a lot of sense for IPv6...
Something to be cleaned up later.
2025-10-19 19:55:12 +02:00
Christian Hesse
ea05b69f7c fw-addr-lists: use $NetMask6 2025-10-19 19:55:12 +02:00
Christian Hesse
d7a6eb1d00 global-functions: $NetMask6: implement simple caching
The calculation is quite complex for something that needs to be done
frequently, for example by `fw-addr-lists`. The number of possible
netmasks is limited, so let's cache the results that were calculated
already.
2025-10-19 19:52:42 +02:00
Christian Hesse
6ad6f9aa08 global-functions: introduce $NetMask6
RouterOS does not support bit shifting on IPv6 data types, so we have to
split the problem:

 * each 16 bit block is calculated separately, as number
 * the complete netmask is assembled in a loop, as string
 * the final string is casted to correct data type
2025-10-19 19:48:14 +02:00
Christian Hesse
c62f236251 Merge branch 'netmask4' into next 2025-10-19 19:26:51 +02:00

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