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Revert "Revert "apparmor: fix and improve the service""

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This reverts commit 420f89ceb2.
This commit is contained in:
Julien Moutinho
2021-04-23 07:17:55 +02:00
parent d239bc3643
commit 05d334cfe2
20 changed files with 805 additions and 164 deletions
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nixos/modules/security/apparmor-suid.nix
-49
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@@ -1,49 +0,0 @@
{ config, lib, pkgs, ... }:
let
cfg = config.security.apparmor;
in
with lib;
{
imports = [
(mkRenamedOptionModule [ "security" "virtualization" "flushL1DataCache" ] [ "security" "virtualisation" "flushL1DataCache" ])
];
options.security.apparmor.confineSUIDApplications = mkOption {
type = types.bool;
default = true;
description = ''
Install AppArmor profiles for commonly-used SUID application
to mitigate potential privilege escalation attacks due to bugs
in such applications.
Currently available profiles: ping
'';
};
config = mkIf (cfg.confineSUIDApplications) {
security.apparmor.profiles = [ (pkgs.writeText "ping" ''
#include <tunables/global>
/run/wrappers/bin/ping {
#include <abstractions/base>
#include <abstractions/consoles>
#include <abstractions/nameservice>
capability net_raw,
capability setuid,
network inet raw,
${pkgs.stdenv.cc.libc.out}/lib/*.so mr,
${pkgs.libcap.lib}/lib/libcap.so* mr,
${pkgs.attr.out}/lib/libattr.so* mr,
${pkgs.iputils}/bin/ping mixr,
#/etc/modules.conf r,
## Site-specific additions and overrides. See local/README for details.
##include <local/bin.ping>
}
'') ];
};
}
nixos/modules/security/apparmor.nix
+187 -48
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@@ -1,59 +1,198 @@
{ config, lib, pkgs, ... }:
let
inherit (lib) mkIf mkOption types concatMapStrings;
inherit (builtins) attrNames head map match readFile;
inherit (lib) types;
inherit (config.environment) etc;
cfg = config.security.apparmor;
mkDisableOption = name: lib.mkEnableOption name // {
default = true;
example = false;
};
enabledPolicies = lib.filterAttrs (n: p: p.enable) cfg.policies;
in
{
options = {
security.apparmor = {
enable = mkOption {
type = types.bool;
default = false;
description = "Enable the AppArmor Mandatory Access Control system.";
};
profiles = mkOption {
type = types.listOf types.path;
default = [];
description = "List of files containing AppArmor profiles.";
};
packages = mkOption {
type = types.listOf types.package;
default = [];
description = "List of packages to be added to apparmor's include path";
};
};
};
imports = [
(lib.mkRenamedOptionModule [ "security" "virtualization" "flushL1DataCache" ] [ "security" "virtualisation" "flushL1DataCache" ])
(lib.mkRemovedOptionModule [ "security" "apparmor" "confineSUIDApplications" ] "Please use the new options: `security.apparmor.policies.<policy>.enable'.")
(lib.mkRemovedOptionModule [ "security" "apparmor" "profiles" ] "Please use the new option: `security.apparmor.policies'.")
apparmor/includes.nix
apparmor/profiles.nix
];
config = mkIf cfg.enable {
environment.systemPackages = [ pkgs.apparmor-utils ];
options = {
security.apparmor = {
enable = lib.mkEnableOption ''the AppArmor Mandatory Access Control system.
boot.kernelParams = [ "apparmor=1" "security=apparmor" ];
If you're enabling this module on a running system,
note that a reboot will be required to activate AppArmor in the kernel.
systemd.services.apparmor = let
paths = concatMapStrings (s: " -I ${s}/etc/apparmor.d")
([ pkgs.apparmor-profiles ] ++ cfg.packages);
in {
after = [ "local-fs.target" ];
before = [ "sysinit.target" ];
wantedBy = [ "multi-user.target" ];
unitConfig = {
DefaultDependencies = "no";
};
serviceConfig = {
Type = "oneshot";
RemainAfterExit = "yes";
ExecStart = map (p:
''${pkgs.apparmor-parser}/bin/apparmor_parser -rKv ${paths} "${p}"''
) cfg.profiles;
ExecStop = map (p:
''${pkgs.apparmor-parser}/bin/apparmor_parser -Rv "${p}"''
) cfg.profiles;
ExecReload = map (p:
''${pkgs.apparmor-parser}/bin/apparmor_parser --reload ${paths} "${p}"''
) cfg.profiles;
};
};
};
Also, beware that enabling this module will by default
try to kill unconfined but confinable running processes,
in order to obtain a confinement matching what is declared in the NixOS configuration.
This will happen when upgrading to a NixOS revision
introducing an AppArmor profile for the executable of a running process.
This is because enabling an AppArmor profile for an executable
can only confine new or already confined processes of that executable,
but leaves already running processes unconfined.
Set <link linkend="opt-security.apparmor.killUnconfinedConfinables">killUnconfinedConfinables</link>
to <literal>false</literal> if you prefer to leave those processes running'';
policies = lib.mkOption {
description = ''
AppArmor policies.
'';
type = types.attrsOf (types.submodule ({ name, config, ... }: {
options = {
enable = mkDisableOption "loading of the profile into the kernel";
enforce = mkDisableOption "enforcing of the policy or only complain in the logs";
profile = lib.mkOption {
description = "The policy of the profile.";
type = types.lines;
apply = pkgs.writeText name;
};
};
}));
default = {};
};
includes = lib.mkOption {
type = types.attrsOf types.lines;
default = {};
description = ''
List of paths to be added to AppArmor's searched paths
when resolving <literal>include</literal> directives.
'';
apply = lib.mapAttrs pkgs.writeText;
};
packages = lib.mkOption {
type = types.listOf types.package;
default = [];
description = "List of packages to be added to AppArmor's include path";
};
enableCache = lib.mkEnableOption ''caching of AppArmor policies
in <literal>/var/cache/apparmor/</literal>.
Beware that AppArmor policies almost always contain Nix store paths,
and thus produce at each change of these paths
a new cached version accumulating in the cache'';
killUnconfinedConfinables = mkDisableOption ''killing of processes
which have an AppArmor profile enabled
(in <link linkend="opt-security.apparmor.policies">policies</link>)
but are not confined (because AppArmor can only confine new processes).
Beware that due to a current limitation of AppArmor,
only profiles with exact paths (and no name) can enable such kills'';
};
};
config = lib.mkIf cfg.enable {
assertions = map (policy:
{ assertion = match ".*/.*" policy == null;
message = "`security.apparmor.policies.\"${policy}\"' must not contain a slash.";
# Because, for instance, aa-remove-unknown uses profiles_names_list() in rc.apparmor.functions
# which does not recurse into sub-directories.
}
) (attrNames cfg.policies);
environment.systemPackages = [ pkgs.apparmor-utils ];
environment.etc."apparmor.d".source = pkgs.linkFarm "apparmor.d" (
# It's important to put only enabledPolicies here and not all cfg.policies
# because aa-remove-unknown reads profiles from all /etc/apparmor.d/*
lib.mapAttrsToList (name: p: {inherit name; path=p.profile;}) enabledPolicies ++
lib.mapAttrsToList (name: path: {inherit name path;}) cfg.includes
);
environment.etc."apparmor/parser.conf".text = ''
${if cfg.enableCache then "write-cache" else "skip-cache"}
cache-loc /var/cache/apparmor
Include /etc/apparmor.d
'' +
lib.concatMapStrings (p: "Include ${p}/etc/apparmor.d\n") cfg.packages;
# For aa-logprof
environment.etc."apparmor/apparmor.conf".text = ''
'';
# For aa-logprof
environment.etc."apparmor/severity.db".source = pkgs.apparmor-utils + "/etc/apparmor/severity.db";
environment.etc."apparmor/logprof.conf".text = ''
[settings]
# /etc/apparmor.d/ is read-only on NixOS
profiledir = /var/cache/apparmor/logprof
inactive_profiledir = /etc/apparmor.d/disable
# Use: journalctl -b --since today --grep audit: | aa-logprof
logfiles = /dev/stdin
parser = ${pkgs.apparmor-parser}/bin/apparmor_parser
ldd = ${pkgs.glibc.bin}/bin/ldd
logger = ${pkgs.utillinux}/bin/logger
# customize how file ownership permissions are presented
# 0 - off
# 1 - default of what ever mode the log reported
# 2 - force the new permissions to be user
# 3 - force all perms on the rule to be user
default_owner_prompt = 1
custom_includes = /etc/apparmor.d ${lib.concatMapStringsSep " " (p: "${p}/etc/apparmor.d") cfg.packages}
[qualifiers]
${pkgs.runtimeShell} = icnu
${pkgs.bashInteractive}/bin/sh = icnu
${pkgs.bashInteractive}/bin/bash = icnu
'' + head (match "^.*\\[qualifiers](.*)" # Drop the original [settings] section.
(readFile "${pkgs.apparmor-utils}/etc/apparmor/logprof.conf"));
boot.kernelParams = [ "apparmor=1" "security=apparmor" ];
systemd.services.apparmor = {
after = [
"local-fs.target"
"systemd-journald-audit.socket"
];
before = [ "sysinit.target" ];
wantedBy = [ "multi-user.target" ];
unitConfig = {
Description="Load AppArmor policies";
DefaultDependencies = "no";
ConditionSecurity = "apparmor";
};
# Reloading instead of restarting enables to load new AppArmor profiles
# without necessarily restarting all services which have Requires=apparmor.service
reloadIfChanged = true;
restartTriggers = [
etc."apparmor/parser.conf".source
etc."apparmor.d".source
];
serviceConfig = let
killUnconfinedConfinables = pkgs.writeShellScript "apparmor-kill" ''
set -eu
${pkgs.apparmor-utils}/bin/aa-status --json |
${pkgs.jq}/bin/jq --raw-output '.processes | .[] | .[] | select (.status == "unconfined") | .pid' |
xargs --verbose --no-run-if-empty --delimiter='\n' \
kill
'';
commonOpts = p: "--verbose --show-cache ${lib.optionalString (!p.enforce) "--complain "}${p.profile}";
in {
Type = "oneshot";
RemainAfterExit = "yes";
ExecStartPre = "${pkgs.apparmor-utils}/bin/aa-teardown";
ExecStart = lib.mapAttrsToList (n: p: "${pkgs.apparmor-parser}/bin/apparmor_parser --add ${commonOpts p}") enabledPolicies;
ExecStartPost = lib.optional cfg.killUnconfinedConfinables killUnconfinedConfinables;
ExecReload =
# Add or replace into the kernel profiles in enabledPolicies
# (because AppArmor can do that without stopping the processes already confined).
lib.mapAttrsToList (n: p: "${pkgs.apparmor-parser}/bin/apparmor_parser --replace ${commonOpts p}") enabledPolicies ++
# Remove from the kernel any profile whose name is not
# one of the names within the content of the profiles in enabledPolicies
# (indirectly read from /etc/apparmor.d/*, without recursing into sub-directory).
# Note that this does not remove profiles dynamically generated by libvirt.
[ "${pkgs.apparmor-utils}/bin/aa-remove-unknown" ] ++
# Optionaly kill the processes which are unconfined but now have a profile loaded
# (because AppArmor can only start to confine new processes).
lib.optional cfg.killUnconfinedConfinables killUnconfinedConfinables;
ExecStop = "${pkgs.apparmor-utils}/bin/aa-teardown";
CacheDirectory = [ "apparmor" "apparmor/logprof" ];
CacheDirectoryMode = "0700";
};
};
};
meta.maintainers = with lib.maintainers; [ julm ];
}
nixos/modules/security/apparmor/includes.nix
+301
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@@ -0,0 +1,301 @@
{ config, lib, pkgs, ... }:
let
inherit (builtins) attrNames hasAttr isAttrs;
inherit (lib) getLib;
inherit (config.environment) etc;
etcRule = arg:
let go = {path ? null, mode ? "r", trail ? ""}:
lib.optionalString (hasAttr path etc)
"${mode} ${config.environment.etc.${path}.source}${trail},";
in if isAttrs arg
then go arg
else go {path=arg;};
in
{
# FIXME: most of the etcRule calls below have been
# written systematically by converting from apparmor-profiles's profiles
# without testing nor deep understanding of their uses,
# and thus may need more rules or can have less rules;
# this remains to be determined case by case,
# some may even be completely useless.
config.security.apparmor.includes = {
# This one is included by <tunables/global>
# which is usualy included before any profile.
"abstractions/tunables/alias" = ''
alias /bin -> /run/current-system/sw/bin,
alias /lib/modules -> /run/current-system/kernel/lib/modules,
alias /sbin -> /run/current-system/sw/sbin,
alias /usr -> /run/current-system/sw,
'';
"abstractions/audio" = ''
include "${pkgs.apparmor-profiles}/etc/apparmor.d/abstractions/audio"
${etcRule "asound.conf"}
${etcRule "esound/esd.conf"}
${etcRule "libao.conf"}
${etcRule {path="pulse"; trail="/";}}
${etcRule {path="pulse"; trail="/**";}}
${etcRule {path="sound"; trail="/";}}
${etcRule {path="sound"; trail="/**";}}
${etcRule {path="alsa/conf.d"; trail="/";}}
${etcRule {path="alsa/conf.d"; trail="/*";}}
${etcRule "openal/alsoft.conf"}
${etcRule "wildmidi/wildmidi.conf"}
'';
"abstractions/authentication" = ''
include "${pkgs.apparmor-profiles}/etc/apparmor.d/abstractions/authentication"
# Defined in security.pam
include <abstractions/pam>
${etcRule "nologin"}
${etcRule "securetty"}
${etcRule {path="security"; trail="/*";}}
${etcRule "shadow"}
${etcRule "gshadow"}
${etcRule "pwdb.conf"}
${etcRule "default/passwd"}
${etcRule "login.defs"}
'';
"abstractions/base" = ''
include "${pkgs.apparmor-profiles}/etc/apparmor.d/abstractions/base"
r ${pkgs.stdenv.cc.libc}/share/locale/**,
r ${pkgs.stdenv.cc.libc}/share/locale.alias,
${lib.optionalString (pkgs.glibcLocales != null) "r ${pkgs.glibcLocales}/lib/locale/locale-archive,"}
${etcRule "localtime"}
r ${pkgs.tzdata}/share/zoneinfo/**,
r ${pkgs.stdenv.cc.libc}/share/i18n/**,
'';
"abstractions/bash" = ''
include "${pkgs.apparmor-profiles}/etc/apparmor.d/abstractions/bash"
# system-wide bash configuration
${etcRule "profile.dos"}
${etcRule "profile"}
${etcRule "profile.d"}
${etcRule {path="profile.d"; trail="/*";}}
${etcRule "bashrc"}
${etcRule "bash.bashrc"}
${etcRule "bash.bashrc.local"}
${etcRule "bash_completion"}
${etcRule "bash_completion.d"}
${etcRule {path="bash_completion.d"; trail="/*";}}
# bash relies on system-wide readline configuration
${etcRule "inputrc"}
# bash inspects filesystems at startup
# and /etc/mtab is linked to /proc/mounts
@{PROC}/mounts
# run out of /etc/bash.bashrc
${etcRule "DIR_COLORS"}
'';
"abstractions/cups-client" = ''
include "${pkgs.apparmor-profiles}/etc/apparmor.d/abstractions/cpus-client"
${etcRule "cups/cups-client.conf"}
'';
"abstractions/consoles" = ''
include "${pkgs.apparmor-profiles}/etc/apparmor.d/abstractions/consoles"
'';
"abstractions/dbus-session-strict" = ''
include "${pkgs.apparmor-profiles}/etc/apparmor.d/abstractions/dbus-session-strict"
${etcRule "machine-id"}
'';
"abstractions/dconf" = ''
include "${pkgs.apparmor-profiles}/etc/apparmor.d/abstractions/dconf"
${etcRule {path="dconf"; trail="/**";}}
'';
"abstractions/dri-common" = ''
include "${pkgs.apparmor-profiles}/etc/apparmor.d/abstractions/dri-common"
${etcRule "drirc"}
'';
# The config.fonts.fontconfig NixOS module adds many files to /etc/fonts/
# by symlinking them but without exporting them outside of its NixOS module,
# those are therefore added there to this "abstractions/fonts".
"abstractions/fonts" = ''
include "${pkgs.apparmor-profiles}/etc/apparmor.d/abstractions/fonts"
${etcRule {path="fonts"; trail="/**";}}
'';
"abstractions/gnome" = ''
include "${pkgs.apparmor-profiles}/etc/apparmor.d/abstractions/gnome"
${etcRule {path="gnome"; trail="/gtkrc*";}}
${etcRule {path="gtk"; trail="/*";}}
${etcRule {path="gtk-2.0"; trail="/*";}}
${etcRule {path="gtk-3.0"; trail="/*";}}
${etcRule "orbitrc"}
include <abstractions/fonts>
${etcRule {path="pango"; trail="/*";}}
${etcRule {path="/etc/gnome-vfs-2.0"; trail="/modules/";}}
${etcRule {path="/etc/gnome-vfs-2.0"; trail="/modules/*";}}
${etcRule "papersize"}
${etcRule {path="cups"; trail="/lpoptions";}}
${etcRule {path="gnome"; trail="/defaults.list";}}
${etcRule {path="xdg"; trail="/{,*-}mimeapps.list";}}
${etcRule "xdg/mimeapps.list"}
'';
"abstractions/kde" = ''
include "${pkgs.apparmor-profiles}/etc/apparmor.d/abstractions/kde"
${etcRule {path="qt3"; trail="/kstylerc";}}
${etcRule {path="qt3"; trail="/qt_plugins_3.3rc";}}
${etcRule {path="qt3"; trail="/qtrc";}}
${etcRule "kderc"}
${etcRule {path="kde3"; trail="/*";}}
${etcRule "kde4rc"}
${etcRule {path="xdg"; trail="/kdeglobals";}}
${etcRule {path="xdg"; trail="/Trolltech.conf";}}
'';
"abstractions/kerberosclient" = ''
include "${pkgs.apparmor-profiles}/etc/apparmor.d/abstractions/kerberosclient"
${etcRule {path="krb5.keytab"; mode="rk";}}
${etcRule "krb5.conf"}
${etcRule "krb5.conf.d"}
${etcRule {path="krb5.conf.d"; trail="/*";}}
# config files found via strings on libs
${etcRule "krb.conf"}
${etcRule "krb.realms"}
${etcRule "srvtab"}
'';
"abstractions/ldapclient" = ''
include "${pkgs.apparmor-profiles}/etc/apparmor.d/abstractions/ldapclient"
${etcRule "ldap.conf"}
${etcRule "ldap.secret"}
${etcRule {path="openldap"; trail="/*";}}
${etcRule {path="openldap"; trail="/cacerts/*";}}
${etcRule {path="sasl2"; trail="/*";}}
'';
"abstractions/likewise" = ''
include "${pkgs.apparmor-profiles}/etc/apparmor.d/abstractions/likewise"
'';
"abstractions/mdns" = ''
include "${pkgs.apparmor-profiles}/etc/apparmor.d/abstractions/mdns"
${etcRule "nss_mdns.conf"}
'';
"abstractions/nameservice" = ''
include "${pkgs.apparmor-profiles}/etc/apparmor.d/abstractions/nameservice"
# Many programs wish to perform nameservice-like operations, such as
# looking up users by name or id, groups by name or id, hosts by name
# or IP, etc. These operations may be performed through files, dns,
# NIS, NIS+, LDAP, hesiod, wins, etc. Allow them all here.
${etcRule "group"}
${etcRule "host.conf"}
${etcRule "hosts"}
${etcRule "nsswitch.conf"}
${etcRule "gai.conf"}
${etcRule "passwd"}
${etcRule "protocols"}
# libtirpc (used for NIS/YP login) needs this
${etcRule "netconfig"}
${etcRule "resolv.conf"}
${etcRule {path="samba"; trail="/lmhosts";}}
${etcRule "services"}
${etcRule "default/nss"}
# libnl-3-200 via libnss-gw-name
${etcRule {path="libnl"; trail="/classid";}}
${etcRule {path="libnl-3"; trail="/classid";}}
mr ${getLib pkgs.nss}/lib/libnss_*.so*,
mr ${getLib pkgs.nss}/lib64/libnss_*.so*,
'';
"abstractions/nis" = ''
include "${pkgs.apparmor-profiles}/etc/apparmor.d/abstractions/nis"
'';
"abstractions/nvidia" = ''
include "${pkgs.apparmor-profiles}/etc/apparmor.d/abstractions/nvidia"
${etcRule "vdpau_wrapper.cfg"}
'';
"abstractions/opencl-common" = ''
include "${pkgs.apparmor-profiles}/etc/apparmor.d/abstractions/opencl-common"
${etcRule {path="OpenCL"; trail="/**";}}
'';
"abstractions/opencl-mesa" = ''
include "${pkgs.apparmor-profiles}/etc/apparmor.d/abstractions/opencl-mesa"
${etcRule "default/drirc"}
'';
"abstractions/openssl" = ''
include "${pkgs.apparmor-profiles}/etc/apparmor.d/abstractions/openssl"
${etcRule {path="ssl"; trail="/openssl.cnf";}}
'';
"abstractions/p11-kit" = ''
include "${pkgs.apparmor-profiles}/etc/apparmor.d/abstractions/p11-kit"
${etcRule {path="pkcs11"; trail="/";}}
${etcRule {path="pkcs11"; trail="/pkcs11.conf";}}
${etcRule {path="pkcs11"; trail="/modules/";}}
${etcRule {path="pkcs11"; trail="/modules/*";}}
'';
"abstractions/perl" = ''
include "${pkgs.apparmor-profiles}/etc/apparmor.d/abstractions/perl"
${etcRule {path="perl"; trail="/**";}}
'';
"abstractions/php" = ''
include "${pkgs.apparmor-profiles}/etc/apparmor.d/abstractions/php"
${etcRule {path="php"; trail="/**/";}}
${etcRule {path="php5"; trail="/**/";}}
${etcRule {path="php7"; trail="/**/";}}
${etcRule {path="php"; trail="/**.ini";}}
${etcRule {path="php5"; trail="/**.ini";}}
${etcRule {path="php7"; trail="/**.ini";}}
'';
"abstractions/postfix-common" = ''
include "${pkgs.apparmor-profiles}/etc/apparmor.d/abstractions/postfix-common"
${etcRule "mailname"}
${etcRule {path="postfix"; trail="/*.cf";}}
${etcRule "postfix/main.cf"}
${etcRule "postfix/master.cf"}
'';
"abstractions/python" = ''
include "${pkgs.apparmor-profiles}/etc/apparmor.d/abstractions/python"
'';
"abstractions/qt5" = ''
include "${pkgs.apparmor-profiles}/etc/apparmor.d/abstractions/qt5"
${etcRule {path="xdg"; trail="/QtProject/qtlogging.ini";}}
${etcRule {path="xdg/QtProject"; trail="/qtlogging.ini";}}
${etcRule "xdg/QtProject/qtlogging.ini"}
'';
"abstractions/samba" = ''
include "${pkgs.apparmor-profiles}/etc/apparmor.d/abstractions/samba"
${etcRule {path="samba"; trail="/*";}}
'';
"abstractions/ssl_certs" = ''
include "${pkgs.apparmor-profiles}/etc/apparmor.d/abstractions/ssl_certs"
${etcRule "ssl/certs/ca-certificates.crt"}
${etcRule "ssl/certs/ca-bundle.crt"}
${etcRule "pki/tls/certs/ca-bundle.crt"}
${etcRule {path="ssl/trust"; trail="/";}}
${etcRule {path="ssl/trust"; trail="/*";}}
${etcRule {path="ssl/trust/anchors"; trail="/";}}
${etcRule {path="ssl/trust/anchors"; trail="/**";}}
${etcRule {path="pki/trust"; trail="/";}}
${etcRule {path="pki/trust"; trail="/*";}}
${etcRule {path="pki/trust/anchors"; trail="/";}}
${etcRule {path="pki/trust/anchors"; trail="/**";}}
# security.acme NixOS module
r /var/lib/acme/*/cert.pem,
r /var/lib/acme/*/chain.pem,
r /var/lib/acme/*/fullchain.pem,
'';
"abstractions/ssl_keys" = ''
# security.acme NixOS module
r /var/lib/acme/*/full.pem,
r /var/lib/acme/*/key.pem,
'';
"abstractions/vulkan" = ''
include "${pkgs.apparmor-profiles}/etc/apparmor.d/abstractions/vulkan"
${etcRule {path="vulkan/icd.d"; trail="/";}}
${etcRule {path="vulkan/icd.d"; trail="/*.json";}}
'';
"abstractions/winbind" = ''
include "${pkgs.apparmor-profiles}/etc/apparmor.d/abstractions/winbind"
${etcRule {path="samba"; trail="/smb.conf";}}
${etcRule {path="samba"; trail="/dhcp.conf";}}
'';
"abstractions/X" = ''
include "${pkgs.apparmor-profiles}/etc/apparmor.d/abstractions/X"
${etcRule {path="X11/cursors"; trail="/";}}
${etcRule {path="X11/cursors"; trail="/**";}}
'';
};
}
nixos/modules/security/apparmor/profiles.nix
+11
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@@ -0,0 +1,11 @@
{ config, lib, pkgs, ... }:
let apparmor = config.security.apparmor; in
{
config.security.apparmor.packages = [ pkgs.apparmor-profiles ];
config.security.apparmor.policies."bin.ping".profile = lib.mkIf apparmor.policies."bin.ping".enable ''
include "${pkgs.iputils.apparmor}/bin.ping"
include "${pkgs.inetutils.apparmor}/bin.ping"
# Note that including those two profiles in the same profile
# would not work if the second one were to re-include <tunables/global>.
'';
}
nixos/modules/security/pam.nix
+55
View File
@@ -895,6 +895,61 @@ in
runuser-l = { rootOK = true; unixAuth = false; };
};
security.apparmor.includes."abstractions/pam" = let
isEnabled = test: fold or false (map test (attrValues config.security.pam.services));
in ''
${lib.concatMapStringsSep "\n"
(name: "r ${config.environment.etc."pam.d/${name}".source},")
(attrNames config.security.pam.services)}
mr ${getLib pkgs.pam}/lib/security/pam_filter/*,
mr ${getLib pkgs.pam}/lib/security/pam_*.so,
r ${getLib pkgs.pam}/lib/security/,
${optionalString use_ldap
"mr ${pam_ldap}/lib/security/pam_ldap.so,"}
${optionalString config.services.sssd.enable
"mr ${pkgs.sssd}/lib/security/pam_sss.so,"}
${optionalString config.krb5.enable ''
mr ${pam_krb5}/lib/security/pam_krb5.so,
mr ${pam_ccreds}/lib/security/pam_ccreds.so,
''}
${optionalString (isEnabled (cfg: cfg.googleOsLoginAccountVerification)) ''
mr ${pkgs.google-compute-engine-oslogin}/lib/pam_oslogin_login.so,
mr ${pkgs.google-compute-engine-oslogin}/lib/pam_oslogin_admin.so,
''}
${optionalString (isEnabled (cfg: cfg.googleOsLoginAuthentication))
"mr ${pkgs.google-compute-engine-oslogin}/lib/pam_oslogin_login.so,"}
${optionalString (config.security.pam.enableSSHAgentAuth && isEnabled (cfg: cfg.sshAgentAuth))
"mr ${pkgs.pam_ssh_agent_auth}/libexec/pam_ssh_agent_auth.so,"}
${optionalString (isEnabled (cfg: cfg.fprintAuth))
"mr ${pkgs.fprintd}/lib/security/pam_fprintd.so,"}
${optionalString (isEnabled (cfg: cfg.u2fAuth))
"mr ${pkgs.pam_u2f}/lib/security/pam_u2f.so,"}
${optionalString (isEnabled (cfg: cfg.usbAuth))
"mr ${pkgs.pam_usb}/lib/security/pam_usb.so,"}
${optionalString (isEnabled (cfg: cfg.oathAuth))
"mr ${pkgs.oathToolkit}/lib/security/pam_oath.so,"}
${optionalString (isEnabled (cfg: cfg.yubicoAuth))
"mr ${pkgs.yubico-pam}/lib/security/pam_yubico.so,"}
${optionalString (isEnabled (cfg: cfg.duoSecurity.enable))
"mr ${pkgs.duo-unix}/lib/security/pam_duo.so,"}
${optionalString (isEnabled (cfg: cfg.otpwAuth))
"mr ${pkgs.otpw}/lib/security/pam_otpw.so,"}
${optionalString config.security.pam.enableEcryptfs
"mr ${pkgs.ecryptfs}/lib/security/pam_ecryptfs.so,"}
${optionalString (isEnabled (cfg: cfg.pamMount))
"mr ${pkgs.pam_mount}/lib/security/pam_mount.so,"}
${optionalString (isEnabled (cfg: cfg.enableGnomeKeyring))
"mr ${pkgs.gnome3.gnome-keyring}/lib/security/pam_gnome_keyring.so,"}
${optionalString (isEnabled (cfg: cfg.startSession))
"mr ${pkgs.systemd}/lib/security/pam_systemd.so,"}
${optionalString (isEnabled (cfg: cfg.enableAppArmor) && config.security.apparmor.enable)
"mr ${pkgs.apparmor-pam}/lib/security/pam_apparmor.so,"}
${optionalString (isEnabled (cfg: cfg.enableKwallet))
"mr ${pkgs.plasma5.kwallet-pam}/lib/security/pam_kwallet5.so,"}
${optionalString config.virtualisation.lxc.lxcfs.enable
"mr ${pkgs.lxc}/lib/security/pam_cgfs.so"}
'';
};
}
nixos/modules/security/wrappers/default.nix
+8
View File
@@ -171,6 +171,14 @@ in
export PATH="${wrapperDir}:$PATH"
'';
security.apparmor.includes."nixos/security.wrappers" = ''
include "${pkgs.apparmorRulesFromClosure { name="security.wrappers"; } [
securityWrapper
pkgs.stdenv.cc.cc
pkgs.stdenv.cc.libc
]}"
'';
###### setcap activation script
system.activationScripts.wrappers =
lib.stringAfter [ "specialfs" "users" ]