This commit converts the license handling to adhere to the REUSE
specification. It specifically:
1. Adds used licnses to LICENSES/ directory
2. Add "isc" template for adding the copyright boilerplate
3. Changes all source files to include copyright and SPDX license
header, this includes all the C sources, documentation, zone files,
configuration files. There are notes in the doc/dev/copyrights file
on how to add correct headers to the new files.
4. Handle the rest that can't be modified via .reuse/dep5 file. The
binary (or otherwise unmodifiable) files could have license places
next to them in <foo>.license file, but this would lead to cluttered
repository and most of the files handled in the .reuse/dep5 file are
system test files.
Unify the header guard style and replace the inconsistent include guards
with #pragma once.
The #pragma once is widely and very well supported in all compilers that
BIND 9 supports, and #pragma once was already in use in several new or
refactored headers.
Using simpler method will also allow us to automate header guard checks
as this is simpler to programatically check.
For reference, here are the reasons for the change taken from
Wikipedia[1]:
> In the C and C++ programming languages, #pragma once is a non-standard
> but widely supported preprocessor directive designed to cause the
> current source file to be included only once in a single compilation.
>
> Thus, #pragma once serves the same purpose as include guards, but with
> several advantages, including: less code, avoidance of name clashes,
> and sometimes improvement in compilation speed. On the other hand,
> #pragma once is not necessarily available in all compilers and its
> implementation is tricky and might not always be reliable.
1. https://en.wikipedia.org/wiki/Pragma_once
3705. [func] "configure --enable-native-pkcs11" enables BIND
to use the PKCS#11 API for all cryptographic
functions, so that it can drive a hardware service
module directly without the need to use a modified
OpenSSL as intermediary (so long as the HSM's vendor
provides a complete-enough implementation of the
PKCS#11 interface). This has been tested successfully
with the Thales nShield HSM and with SoftHSMv2 from
the OpenDNSSEC project. [RT #29031]
will now ignore unrecognized fields when the
minor version number of the private key format
has been increased. It will reject any key with
the major version number increased. [RT #20310]
- dnssec-keygen and dnssec-settime can now set key
metadata fields 0 (to unset a value, use "none")
- dnssec-revoke sets the revocation date in
addition to the revoke bit
- dnssec-settime can now print individual metadata
fields instead of always printing all of them,
and can print them in unix epoch time format for
use by scripts
[RT #19942]
dnssec-* tools. Major changes:
- all dnssec-* tools now take a -K option to
specify a directory in which key files will be
stored
- DNSSEC can now store metadata indicating when
they are scheduled to be published, acttivated,
revoked or removed; these values can be set by
dnssec-keygen or overwritten by the new
dnssec-settime command
- dnssec-signzone -S (for "smart") option reads key
metadata and uses it to determine automatically
which keys to publish to the zone, use for
signing, revoke, or remove from the zone
[RT #19816]
