Commit graph

92 commits

Author SHA1 Message Date
Thomas Strobel 7b6f279142 pam_mount module: integrate pam_mount into PAM of NixOS 2015-07-04 23:42:31 +02:00
William A. Kennington III ff21171921 Fix references to current-system/sw/sbin 2015-04-01 13:57:36 -07:00
Eelco Dolstra 1002fb6433 Add "input" group
This is required by systemd >= 215.
2015-03-03 20:27:09 +01:00
Domen Kožar 3d7ff07258 fix manual 2015-01-03 16:32:07 +01:00
Domen Kožar 1f523bb23d clarify things about hashed passwords and mutableUsers 2015-01-02 17:32:56 +01:00
Eelco Dolstra f496c3cbe4 Obsolete security.initialPassword
You can now set users.extraUsers.root.initialHashedPassword instead.
2014-11-03 12:36:56 +01:00
Eelco Dolstra f8f787b800 Handle initialPassword and initialHashedPassword for !mutableUsers
In this case, they're equivalent to setting ‘password’ and
‘hashedPassword’ (since there is no distinction between an initial and
non-initial user account state).
2014-11-03 12:32:32 +01:00
Eelco Dolstra 1b53a3fcb7 Add initialPassword and initialHashedPassword options
These are like password and hashedPassword, except that they only
apply when the user is initially created.
2014-11-03 12:32:19 +01:00
Longrin Wischnewski a2c65d447f passwordFile: update description 2014-10-23 04:52:50 +02:00
Rickard Nilsson a59df1e567 nixos: Add also group.members to group 2014-09-22 19:18:08 +02:00
Eelco Dolstra 624efa4224 Support users-groups.json referring to store paths
Fixes #4016.
2014-09-10 11:50:45 +02:00
Eelco Dolstra 20be024d1b Fix subuid/subgid generation
I don't think we need to filter users with an unset uid, because
mkSubuidEntry/mkSubgidEntry don't references the uid.
2014-09-05 17:40:09 +02:00
Vladimír Čunát e51f73652d Merge recent master into staging
Hydra: ?compare=1149952

Conflicts:
	nixos/doc/manual/configuration.xml (changed split file)
	nixos/modules/config/users-groups.nix (choosing filterNull instead of inline definition)
	pkgs/development/libraries/readline/readline6.3.nix (auto-solved)
2014-08-30 10:04:02 +02:00
aszlig e0e65cbf8e
nixos/users-groups: Fix eval on missing uid/gid.
This hopefully fixes a regression introduced by 08b214a.

In bf129a2, it was already fixed for normal uid/gid values and it got
reintroduced by sub-uid/gid-handling again, so I've refactored it a bit
into a filterNull function which takes care of also the filtering
introduced by bf129a2.

I have not tested this extensively, but master is already broken for
systems with `mutableUsers = true` and no uid values set.

Signed-off-by: aszlig <aszlig@redmoonstudios.org>
2014-08-29 07:17:19 +02:00
Michael Raskin 1fd14fa415 Merge pull request #3100 from tailhook/new-shadow
Upgrade "shadow" to 4.2.1
2014-08-29 00:42:57 +04:00
Vladimír Čunát d4e9fd2a90 Merge recent master into staging
Hydra: ?compare=1148749

Conflicts (easy):
	nixos/modules/virtualisation/containers.nix
2014-08-21 15:09:31 +02:00
Matej Cotman f4b5cd9f3f use mkDefault on root's shell 2014-08-20 21:17:48 +02:00
Eelco Dolstra a323d146b7 Add user attribute isNormalUser
This is shorthand for setting group, createHome, home, useDefaultShell
and isSystemUser.
2014-08-15 02:16:04 +02:00
Eelco Dolstra 1a75958be5 Unify mutableUsers = { true, false }
With mutableUsers = true, we now ensure that all users and groups that
were created declaratively, are updated or removed
appropriately. Thus, adding a user to users.extraUsers and then
removing it now causes the acoount to be removed from
/etc/passwd. Thus user/group management is fully congruent except that
users and groups that were created imperatively (via useradd/groupadd)
are not touched. We distinguish between declarative and imperative
users/groups by tracking the former in
/var/lib/nixos/declarative-{groups,users}.

With mutableUsers = false, you are now no longer required to specify
UIDs/GIDs for all users. The handling of mutableUsers = true/false is
the same code path; the only difference is that the "false" mode
ignores the existing contents of /etc/{passwd,group}.

The attribute ‘createUser’ is gone. It doesn't really make sense to
specify users that shouldn't be created.
2014-08-15 02:15:29 +02:00
Paul Colomiets 08b214a8f2 First implementation of subuid/subgid manipulation module 2014-08-01 21:27:20 +03:00
Sönke Hahn 089b293019 better error message in case of missing uids 2014-05-28 20:12:53 +08:00
Charles Strahan 5445132f73 fix -G delimiter in call to useradd 2014-05-17 00:45:16 -04:00
Eelco Dolstra 4fc151b5a3 nixos-install: Ask the user to set a root password
This removes the need to have an initially empty root password.
2014-05-09 00:52:02 +02:00
Rob Vermaas d056d1d37b Fix users.*.extraGroups for users.mutableUsers = true.
(cherry picked from commit eb222923054fdc895ab73ff5d0260c1e1fc689c7)
2014-05-05 15:35:16 +02:00
Eelco Dolstra 05468f9b78 Bring back the isSystemUser option 2014-04-29 10:43:38 +02:00
Eelco Dolstra 29027fd1e1 Rewrite ‘with pkgs.lib’ -> ‘with lib’
Using pkgs.lib on the spine of module evaluation is problematic
because the pkgs argument depends on the result of module
evaluation. To prevent an infinite recursion, pkgs and some of the
modules are evaluated twice, which is inefficient. Using ‘with lib’
prevents this problem.
2014-04-14 16:26:48 +02:00
Austin Seipp 172dc1336f nixos: add grsecurity module (#1875)
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>
2014-04-11 22:43:51 -05:00
Rickard Nilsson 604306c34a Don't add users if createUser is false 2014-04-08 12:36:03 +02:00
Rickard Nilsson bf129a2c23 Allow undefined uids and gids when mutableUsers = true
Groups and users without gid/uid are created with
useradd/groupadd after the passwd/group merge phase
if mutableUsers = true.

This should fix #2114.
2014-04-06 12:42:55 +02:00
Shea Levy abf901484c Allow directly setting hashedPassword for root 2014-02-16 07:33:07 -05:00
Shea Levy 80cc2697b1 user-groups: Sidestep all password escaping issues
Now passwords are written to a file first
2014-02-10 10:12:34 -05:00
Thomas Tuegel 3dc6168b31 Properly escape passwords sent to chpasswd
The mutableUsers feature uses `chpasswd` to set users passwords.
Passwords and their hashes were being piped into the program using
double quotes ("") to escape. This causes any `$` characters to be
expanded as shell variables. This is a serious problem because all the
password hash methods besides DES use multiple `$` in the hashes. Single
quotes ('') should be used instead to prevent shell variable expansion.
2014-02-10 08:16:22 -06:00
Shea Levy e058de1642 Add option to enforce uniqueness of uids/gids (on by default)
Signed-off-by: Shea Levy <shea@shealevy.com>
2014-02-07 09:57:28 -05:00
Rickard Nilsson 72ba2bf126 Add description to group.members option 2014-02-05 15:56:51 +01:00
Rickard Nilsson 0b92ad02c8 Re-introduce security.initialRootPassword, and add a new option users.extraUsers.<user>.hashedPassword 2014-02-05 15:56:51 +01:00
Rickard Nilsson eb2f44c18c Generate /etc/passwd and /etc/group at build time
This is a rather large commit that switches user/group creation from using
useradd/groupadd on activation to just generating the contents of /etc/passwd
and /etc/group, and then on activation merging the generated files with the
files that exist in the system. This makes the user activation process much
cleaner, in my opinion.

The users.extraUsers.<user>.uid and users.extraGroups.<group>.gid must all be
properly defined (if <user>.createUser is true, which it is by default). My
pull request adds a lot of uids/gids to config.ids to solve this problem for
existing nixos services, but there might be configurations that break because
this change. However, this will be discovered during the build.

Option changes introduced by this commit:

* Remove the options <user>.isSystemUser and <user>.isAlias since
they don't make sense when generating /etc/passwd statically.

* Add <group>.members as a complement to <user>.extraGroups.

* Add <user>.passwordFile for setting a user's password from an encrypted
(shadow-style) file.

* Add users.mutableUsers which is true by default. This means you can keep
managing your users as previously, by using useradd/groupadd manually. This is
accomplished by merging the generated passwd/group file with the existing files
in /etc on system activation. The merging of the files is simplistic. It just
looks at the user/group names. If a user/group exists both on the system and
in the generated files, the system entry will be kept un-changed and the
generated entries will be ignored. The merging itself is performed with the
help of vipw/vigr to properly lock the account files during edit.
If mutableUsers is set to false, the generated passwd and group files will not
be merged with the system files on activation. Instead they will simply replace
the system files, and overwrite any changes done on the running system. The
same logic holds for user password, if the <user>.password or
<user>.passwordFile options are used. If mutableUsers is false, password will
simply be replaced on activation. If true, the initial user passwords will be
set according to the configuration, but existing passwords will not be touched.

I have tested this on a couple of different systems and it seems to work fine
so far. If you think this is a good idea, please test it. This way of adding
local users has been discussed in issue #103 (and this commit solves that
issue).
2014-02-05 15:56:51 +01:00
Eelco Dolstra 20093751ec Print a reminder to users to set or disable the root password 2013-11-01 15:04:21 +01:00
Eelco Dolstra 4ba7dfde5b Don't set an initial null root password for Amazon / VirtualBox images
A null password allows logging into local PAM services such as "login"
(agetty) and KDM.  That's not actually a security problem for EC2
machines, since they do not have "local" logins; for VirtualBox
machines, if you local access, you can do anything anyway.  But it's
better to be on the safe side and disable password-based logins for
root.
2013-11-01 15:04:21 +01:00
Eelco Dolstra a840dae935 Improve description of the users.extraUsers.*.description option
Fixes NixOS/nixos#278.
2013-10-31 08:43:10 +01:00
Eelco Dolstra 408b8b5725 Add lots of missing option types 2013-10-30 18:47:43 +01:00
Eelco Dolstra 862e3dd977 Substitute "types.uniq types.string" -> "types.str" 2013-10-30 14:57:42 +01:00
Eelco Dolstra 5c1f8cbc70 Move all of NixOS to nixos/ in preparation of the repository merge 2013-10-10 13:28:20 +02:00
Renamed from modules/config/users-groups.nix (Browse further)