Maintainers Notes below.
~~~
Hello,
New versions of all the skarnet.org packages are available.
skalibs has undergone a major update, with a few APIs having disappeared,
and others having changed. Compatibility with previous versions is *not*
assured.
Consequently, all the rest of the skarnet.org software has undergone
at least a release bump, in order to build with the new skalibs. But
some packages also have new functionality added (hence, a minor bump),
and others also have their own incompatible changes (hence, a major bump).
The new versions are the following:
skalibs-2.11.0.0 (major)
nsss-0.2.0.0 (major)
utmps-0.1.0.3 (release)
execline-2.8.1.0 (minor)
s6-2.11.0.0 (major)
s6-rc-0.5.2.3 (release)
s6-portable-utils-2.2.3.3 (release)
s6-linux-utils-2.5.1.6 (release)
s6-linux-init-1.0.6.4 (release)
s6-dns-2.3.5.2 (release)
s6-networking-2.5.0.0 (major)
mdevd-0.1.5.0 (minor)
bcnm-0.0.1.4 (release)
dnsfunnel-0.0.1.2 (release)
Additionally, a new package has been released:
smtpd-starttls-proxy-0.0.1.0
Dependencies have all been updated to the latest versions. They are,
this time, partially strict: libraries and binaries may build with older
releases of their dependencies, but not across major version bumps. The
safest approach is to upgrade everything at the same time.
You do not need to recompile your s6-rc service databases or recreate
your s6-linux-init run-images.
You should restart your supervision tree after upgrading skalibs and s6,
as soon as is convenient for you.
Details of major and minor package changes follow.
* skalibs-2.11.0.0
----------------
- A lot of obsolete or useless functionality has been removed:
libbiguint, rc4, md5, iobuffer, skasigaction, environ.h and
getpeereid.h headers, various functions that have not proven their
value in a while.
- Some functions changed signatures or changed names, or both.
- All custom types ending in _t have been renamed, to avoid treading on
POSIX namespace. (The same change has not been done yet in other
packages, but skalibs was the biggest offender by far.)
- Signal functions have been deeply reworked.
- cdb has been reworked, the API is now more user-friendly.
- New functions have been added.
The deletion of significant portions of code has made skalibs leaner.
libskarnet.so has dropped under 190 kB on x86_64.
The cdb rewrite on its own has helped reduce an important amount of
boilerplate in cdb-using code.
All in all, code linked against the new skalibs should be slightly
smaller and use a tiny bit less RAM.
https://skarnet.org/software/skalibs/
git://git.skarnet.org/skalibs
* nsss-0.2.0.0
------------
- Bugfixes.
- nsss-switch wire protocol slightly modified, which is enough to
warrant a major version bump.
- _r functions are now entirely thread-safe.
- Spawned nsssd programs are now persistent and only expire after a
timeout on non-enumeration queries. This saves a lot of forking with
applications that can call primitives such as getpwnam() repeatedly, as
e.g. mdevd does when initially parsing its configuration file.
- New nsssd-switch program, implementing real nsswitch functionality
by dispatching queries to various backends according to a script.
It does not dlopen a single library or read a single config file.
https://skarnet.org/software/nsss/
git://git.skarnet.org/nsss
* execline-2.8.1.0
----------------
- Bugfixes.
- New binary: case. It compares a value against a series of regular
expressions, executing into another command line on the first match.
https://skarnet.org/software/execline/
git://git.skarnet.org/execline
* s6-2.11.0.0
-----------
- Bugfixes.
- Some libs6 header names have been simplified.
- s6-svwait now accepts -r and -R options.
- s6-supervise now reads an optional lock-fd file in the service
directory; if it finds one, the first action of the service is to take
a blocking lock. This prevents confusion when a controller process dies
while still leaving workers holding resources; it also prevents log
spamming on user mistakes (autobackgrounding services, notably).
- New binaries: s6-socklog, s6-svlink, s6-svunlink. The former is a
rewrite of smarden.org's socklog program, in order to implement a fully
functional syslogd with only s6 programs. The latter are tools that start
and stop services by symlinking/unlinking service directories from a
scan directory, in order to make it easier to integrate s6-style services
in boot scripts for sequential service managers such as OpenRC.
https://skarnet.org/software/s6/
git://git.skarnet.org/s6
* s6-networking-2.5.0.0
---------------------
- Bugfixes.
- minidentd has been removed. It was an old and somehow still buggy
piece of code that was only hanging around for nostalgia reasons.
- Full support for client certificates. Details of the client
certificate are transmitted to the application via environment
variables (or via an environment string in the case of opportunistic
TLS).
- Full SNI support, including server-side. (That involved a deep dive
into the bearssl internals, which is why it took so long.) The filenames
containing secret keys and certificates for <domain> are read in the
environment variables KEYFILE:<domain> and CERTFILE:<domain>.
Complete client certificate and SNI support now make the TLS part of
s6-networking a fully viable replacement of stunnel and other similar
TLS tunneling tools. This is most interesting when s6-networking is
built against bearssl, which uses about 1/9 of the resources that OpenSSL
needs.
https://skarnet.org/software/s6-networking/
git://git.skarnet.org/s6-networking
* mdevd-0.1.5.0
-------------
- A new option to mdevd is available: -O <nlgroups>.
This option makes mdevd rebroadcast uevents to a netlink group (or set
of netlink groups) once they have been handled. This allows applications
to read uevents from a netlink group *after* the device manager is done
with them. This is useful, for instance, when pairing mdevd with
libudev-zero for full udev emulation.
- The * and & directives, which previously were only triggered by
"add" and "remove" actions, are now triggered by *all* action types.
This gives users full scripting access to any event, which can be
used to implement complex rules similar to udev ones.
These two changes make it possible to now build a full-featured desktop
system based on mdevd + libudev-zero, without running systemd-udevd or
eudev.
https://skarnet.org/software/mdevd/
git://git.skarnet.org/mdevd
* smtpd-starttls-proxy-0.0.1.0
----------------------------
This new package, in conjunction with the latest s6-networking,
implements the STARTTLS functionality for inetd-like mail servers that
do not already support it. (Currently only tested with qmail-smtpd.)
If you have noticed that sending mail to skarnet.org supports STARTTLS
now, it is thanks to this little piece of software.
https://skarnet.org/software/smtpd-starttls-proxy/
git://git.skarnet.org/smtpd-starttls-proxy
Enjoy,
Bug-reports welcome.
Laurent
The reason for this change is explained in the long comment I added.
Here's a simple example of the problem:
let
pkgs = import <nixpkgs> { crossSystem.system = "aarch64-linux"; };
in
pkgs.callPackage ({ stdenv, s6-rc }: stdenv.mkDerivation {
name = "s6-rc-compiled";
nativeBuildInputs = [ s6-rc ];
buildCommand = ''
mkdir in
s6-rc-compile $out in
'';
}) {}
We're cross compiling for aarch64 here, so we'd expect the scripts
generated by this derivation to be things we could run on aarch64.
But when I build this on my x86_64 machine, without this change
applied, $out/servicedirs/s6rc-oneshot-runner/run gets generated full
of references to x86_64 non-cross store paths for execline, s6, and
s6-rc.
With this change applied, the scripts generated by the above
expression now refer to the cross-compiled aarch64 store paths for
execline, s6, and s6-rc.
Most of the skaware packages already build just fine with pkgsStatic,
however the wrapper scripts for execline and stdnotify-wrapper needed
the `-lskarlib` argument to go at the end.
`utmps` and `nsss` still fail with this error:
```
exec ./tools/install.sh -D -m 600 utmps-utmpd /bin/utmps-utmpd
/build/utmps-0.0.3.1/tools/install.sh: line 48: can't create /bin/utmps-utmpd.tmp.479: Permission denied
make: *** [Makefile:121: /bin/utmps-utmpd] Error 1
```
This reverts commit a50653295d.
The reasons cited were “debugging”, in which case
you can just add the attribute to `buildSkawarePackage`
and “customizing”, which is still possible with
a normal `overrideDerivation`.
The patch removed `outputs` for some reason
(possible oversight), so building nsss failed.
Plus lots of complexity (e.g. don’t forget to add new
arguments to `removeAttrs` otherwise there’s a bug now).
This allows things like hooks other than postInstall to be passed
through to mkDerivation, which is very useful when customising or
debugging a package.
Using wrapProgram adds a call to `bash` around every call
of `execline`, which clearly misses the basic idea behind
`execline` in the first place …
This reverts commit b64d25c447.
The execlineb program is the launcher (and lexer) of execline scripts.
So it makes a lot of sense to have all the small tools in scope by
default.
We append to the end of PATH so that they can be easily overwritten by
the user.
Co-authored-by: Alyssa Ross <hi@alyssa.is>
Introduce a `skawarePackages.buildPackage` function that contains the
common setup, removing a lot of duplication.
In particular, we require that the build directory has to be empty
after the `fixupPhase`, to make sure every relevant file is moved to
the outputs.
A next step would be to deduplicate the `configureFlags` attributes
and only require a `skawareInputs` field.
Alyssa Ross