This module implements a significant refactoring in grsecurity
configuration for NixOS, making it far more usable by default and much
easier to configure.
- New security.grsecurity NixOS attributes.
- All grsec kernels supported
- Allows default 'auto' grsec configuration, or custom config
- Supports custom kernel options through kernelExtraConfig
- Defaults to high-security - user must choose kernel, server/desktop
mode, and any virtualisation software. That's all.
- kptr_restrict is fixed under grsecurity (it's unwriteable)
- grsecurity patch creation is now significantly abstracted
- only need revision, version, and SHA1
- kernel version requirements are asserted for sanity
- built kernels can have the uname specify the exact grsec version
for development or bug reports. Off by default (requires
`security.grsecurity.config.verboseVersion = true;`)
- grsecurity sysctl support
- By default, disabled.
- For people who enable it, NixOS deploys a 'grsec-lock' systemd
service which runs at startup. You are expected to configure sysctl
through NixOS like you regularly would, which will occur before the
service is started. As a result, changing sysctl settings requires
a reboot.
- New default group: 'grsecurity'
- Root is a member by default
- GRKERNSEC_PROC_GID is implicitly set to the 'grsecurity' GID,
making it possible to easily add users to this group for /proc
access
- AppArmor is now automatically enabled where it wasn't before, despite
implying features.apparmor = true
The most trivial example of enabling grsecurity in your kernel is by
specifying:
security.grsecurity.enable = true;
security.grsecurity.testing = true; # testing 3.13 kernel
security.grsecurity.config.system = "desktop"; # or "server"
This specifies absolutely no virtualisation support. In general, you
probably at least want KVM host support, which is a little more work.
So:
security.grsecurity.enable = true;
security.grsecurity.stable = true; # enable stable 3.2 kernel
security.grsecurity.config = {
system = "server";
priority = "security";
virtualisationConfig = "host";
virtualisationSoftware = "kvm";
hardwareVirtualisation = true;
}
This module has primarily been tested on Hetzner EX40 & VQ7 servers
using NixOps.
Signed-off-by: Austin Seipp <aseipp@pobox.com>
Lockdep doesn't *really* require the kernel package - just the kernel
sources. It's really a user-space tool just compiled from some portable
code within the kernel, nothing more.
Signed-off-by: Austin Seipp <aseipp@pobox.com>
NB: This currently doesn't add a working musl-wrapper around musl-gcc to
allow it to work properly (musl has its own dynamic linker as well as
libc too which must be accounted for). But at the moment it builds fine,
and I plan on working more on it in the future. So lets get it
integrated and building on Hydra.
Signed-off-by: Austin Seipp <aseipp@pobox.com>
This reverts commit 0194a44d63 because
it breaks udisks on 13.10 (e.g. running "udisks --enumerate" will
print "Unit udisks.service failed to load").
(cherry picked from commit d7daf1a47f)
This is necessary for gradm's learning mode to work, as otherwise the
/nix/store directory is marked hidden, which causes the kernel to reject
the linker loading ld-linux.so
Signed-off-by: Austin Seipp <aseipp@pobox.com>
We alredy rewrote /sbin/gradm, which technically matches
/sbin/gradm_pam, so this ends up working exactly as we want. Otherwise
we rewrite twice and gradm can't execute the PAM module with '-p'
Signed-off-by: Austin Seipp <aseipp@pobox.com>
- longterm: 3.4.83 -> 3.4.85
- longterm: 3.10.33 -> 3.10.35
- longterm: 3.12.14 -> 3.12.15
- stable: 3.13.7 -> 3.13.8
NOTE: This will break the testing grsec kernel at the moment (there's
not a 3.13.8 patch yet), but it's destined to be upgraded to 3.14 soon
anyway.
Signed-off-by: Austin Seipp <aseipp@pobox.com>
- longterm: 3.4.83 -> 3.4.85
- longterm: 3.10.33 -> 3.10.35
- longterm: 3.12.14 -> 3.12.15
- stable: 3.13.7 -> 3.13.8
NOTE: This will break the testing grsec kernel at the moment (there's
not a 3.18.8 patch yet), but it's destined to be upgraded to 3.14 soon
anyway.
Signed-off-by: Austin Seipp <aseipp@pobox.com>
Lockdep is the kernel's locking validation/debugging tool and has seen
heavy pro-active usage and development. In Linux 3.14, it's now
available directly to userspace for the same purpose. It comes with a
convenient utility to LD_PRELOAD a shared library for validation, or a
user-space API to link to directly.
Signed-off-by: Austin Seipp <aseipp@pobox.com>
Latest update to udisks in 344f2e65 broke it for me. Fix it by doing the
following:
- Add udisks.service to /etc/systemd/system (via systemd.packages)
- Fix path to udisks-daemon in udisks.service (libexec/ instead of lib/)
- Make dhcp work, use dhcpcd without udev in container
- Make login shell work, patch getty to not wait for /dev/tty0
- Make ssh work, sshd/pam do not start session
looking at our git history, I think it is very peculiar that we
managed to have this version (22.21) 2 months before release :)
So I think we were using some beta/rc that accidentally got called
22.21
Both branches have quite a lot in common, so it's time for a merge and
do the cleanups with respect to both implementations and also generalize
both implementations as much as possible.
This also closes#1876.
Conflicts:
pkgs/development/interpreters/lua-5/5.2.nix
pkgs/development/libraries/SDL/default.nix
pkgs/development/libraries/glew/default.nix
pkgs/top-level/all-packages.nix
This version just got released two days ago, while we were working for
cross-builds on 5.0.2. From the release notes it shouldn't introduce any
incompatibilities.
Signed-off-by: aszlig <aszlig@redmoonstudios.org>
GCC doesn't support attributes on enumerators, which could pose a
problem but fortunately not in this case. Here a
__attribute__((weak_import)) is used, which doesn't make much sense for
enumerators anyway (noone will die because the corresponding enumerator
won't be referenced either in older OS X versions).
Signed-off-by: aszlig <aszlig@redmoonstudios.org>
At the moment, this includes only dyldinfo, dwarfdump and dsymutil, but
we'll see whether we need more of these utilities later.
Tho reason those are wrapped in cctools-port is because it is the
binutils used to cross-compile for Mac OS X.
Signed-off-by: aszlig <aszlig@redmoonstudios.org>
This provides a port of Mac OS X's CoreFoundation and is needed if we
want to be able to run dsymutil using maloader.
Signed-off-by: aszlig <aszlig@redmoonstudios.org>
This toolchain contains Mach-O binaries and might not be useful in the
first place, but there are programs like dsymutil, where Apple didn't
release the source code, so we need a Mach-O loader...
Signed-off-by: aszlig <aszlig@redmoonstudios.org>
This basically is binutils for Mac OS X, but ported to work on
(GNU/)Linux and FreeBSD.
And it's up-to-date as well! I'm mentioning this, because it was quite
hard to find a recent port of it and I just accidentally stumbled on it
while trying to do the port by myself.
So thanks to @tpoechtrager for doing this.
Also, I've added two more patches, which essentially are:
* ld-rpath-nonfinal:
This allows -rpath to be used for linking non-final builds, which
was allowed for earlier versions of cctools and got a check for
that in more recent versions.
* ld-ignore-rpath-link:
Ignores the -rpath-link option, because the cross-wrapper uses it
in different places. Unfortunately, the cctools linker doesn't
support it, so we might need to implement this later if it's
possible (I'm not a Mach-O man^H^H^Hexpert).
Signed-off-by: aszlig <aszlig@redmoonstudios.org>
This package provides the SDK and standard library needed for
cross-compiling to Mac US X. We're using xpwn here to extract the DMG.
Also, this version (XCode 5.0.2) only contains the SDKs for version 10.9
and 10.8, so we might need to add requireFile directives for older
versions as well.
Signed-off-by: aszlig <aszlig@redmoonstudios.org>
CAN userspace utilities and tools (for use with Linux SocketCAN).
There is no real "homepage" for this project (the only thing I could
find was the gitorious page) and they haven't produced any proper
releases (source archives and/or git tags), even though git history goes
back to 2006 and things seem stable.
It turns out that some of gcc 4.8's aggressive optimizations may
cause minor filesystem corruption in ZFS. To fix it, a patch was
cherry-picked from the upstream's git tree.
See: https://github.com/zfsonlinux/zfs/pull/2051
