Commit graph

13 commits

Author SHA1 Message Date
Jörg Thalheim 43908f4c1d
buildFhsUserenv: don't leak mounts to other processes
If run as root we were leaking mounts to the parent namespace,
which lead to an error when removing the temporary mountroot.
To fix this we remount the whole tree as private as soon as we created
the new mountenamespace.
2021-06-05 16:47:44 +02:00
Jonathan Ringer 9bb3fccb5b treewide: pkgs.pkgconfig -> pkgs.pkg-config, move pkgconfig to alias.nix
continuation of #109595

pkgconfig was aliased in 2018, however, it remained in
all-packages.nix due to its wide usage. This cleans
up the remaining references to pkgs.pkgsconfig and
moves the entry to aliases.nix.

python3Packages.pkgconfig remained unchanged because
it's the canonical name of the upstream package
on pypi.
2021-01-19 01:16:25 -08:00
Profpatsch 4a7f99d55d treewide: with stdenv.lib; in meta -> with lib;
Part of: https://github.com/NixOS/nixpkgs/issues/108938

meta = with stdenv.lib;

is a widely used pattern. We want to slowly remove
the `stdenv.lib` indirection and encourage people
to use `lib` directly. Thus let’s start with the meta
field.

This used a rewriting script to mostly automatically
replace all occurances of this pattern, and add the
`lib` argument to the package header if it doesn’t
exist yet.

The script in its current form is available at
https://cs.tvl.fyi/depot@2f807d7f141068d2d60676a89213eaa5353ca6e0/-/blob/users/Profpatsch/nixpkgs-rewriter/default.nix
2021-01-11 10:38:22 +01:00
Jörg Thalheim 66c16e12fa
buildFhsUserenv: don't downgrade root user 2020-12-27 17:19:49 +01:00
Nikolay Amiantov 06f27dc2e9 chrootenv: propagate nested chrootenv /host
To avoid symlink loops to /host in nested chrootenvs we need to remove
one level of indirection. This is also what's generally expected of
/host contents.
2019-05-30 15:34:01 +03:00
Nikolay Amiantov 7664ffbbaf chrootenv: small improvements
* Remove unused argument from pivot_root;
* Factor out tmpdir creation into a separate function;
* Remove unused fstype from bind mount;
* Use unlink instead of a treewalk to remove empty temporary directory.
2019-05-30 15:34:01 +03:00
Nikolay Amiantov e0d3bc292c chrootenv: make stackable
The problem with stacking chrootenv before was that CLONE_NEWUSER cannot
be used when a child uses chroot. So instead of that we use pivot_root
which replaces root in the whole namespace. This requires our new root
to be an actual fs so we mount tmpfs.
2019-05-30 15:33:30 +03:00
Las 50c215df4a
Fix chrootenv segfaulting on exit
glibc 2.27 (and possibly other versions) can't handle an `nopenfd` value larger than 2^19 in `ntfw`, which is problematic if you've set the maximum number of fds per process to a value higher than that.
2019-05-26 17:19:06 +02:00
Michael Eden a3488fb9ac fix FHSUserEnv blacklists 2018-11-11 10:32:09 -05:00
Yegor Timoshenko cea0e9226f
chrootenv: use meson 2018-11-04 11:33:34 +00:00
Piotr Bogdan ccb76eeb3c chrootenv: strip the binary 2018-11-04 03:43:22 +00:00
Linus Heckemann 75cfbdf33b buildFHSUserEnv: change to root directory after chroot
Fixes #38525
2018-04-28 14:51:07 +01:00
Yegor Timoshenko 4b1cf5afb8
chrootenv: rewrite on top of GLib
Changes:

* doesn't handle root user separately
* doesn't chdir("/") which makes using it seamless
* only bind mounts, doesn't symlink (i.e. files)

Incidentally, fixes #33106.

It's about two times shorter than the previous version, and much
easier to read/follow through. It uses GLib quite heavily, along with
RAII (available in GCC/Clang).
2017-12-30 22:28:38 +00:00