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nixpkgs/nixos/modules/security/ca.nix
Franz Pletz 0d59fc1169
cacerts: refactor, add blacklist option
Previously, the list of CA certificates was generated with a perl script
which is included in curl. As this script is not very flexible, this commit
refactors the expression to use the python script that Debian uses to
generate their CA certificates from Mozilla's trust store in NSS.

Additionally, an option was added to the cacerts derivation and the
`security.pki` module to blacklist specific CAs.
2016-10-09 02:00:18 +02:00

95 lines
2.5 KiB
Nix

{ config, lib, pkgs, ... }:
with lib;
let
cfg = config.security.pki;
cacertPackage = pkgs.cacert.override {
blacklist = cfg.caCertificateBlacklist;
};
caCertificates = pkgs.runCommand "ca-certificates.crt"
{ files =
cfg.certificateFiles ++
[ (builtins.toFile "extra.crt" (concatStringsSep "\n" cfg.certificates)) ];
}
''
cat $files > $out
'';
in
{
options = {
security.pki.certificateFiles = mkOption {
type = types.listOf types.path;
default = [];
example = literalExample "[ \"\${pkgs.cacert}/etc/ssl/certs/ca-bundle.crt\" ]";
description = ''
A list of files containing trusted root certificates in PEM
format. These are concatenated to form
<filename>/etc/ssl/certs/ca-certificates.crt</filename>, which is
used by many programs that use OpenSSL, such as
<command>curl</command> and <command>git</command>.
'';
};
security.pki.certificates = mkOption {
type = types.listOf types.str;
default = [];
example = literalExample ''
[ '''
NixOS.org
=========
-----BEGIN CERTIFICATE-----
MIIGUDCCBTigAwIBAgIDD8KWMA0GCSqGSIb3DQEBBQUAMIGMMQswCQYDVQQGEwJJ
TDEWMBQGA1UEChMNU3RhcnRDb20gTHRkLjErMCkGA1UECxMiU2VjdXJlIERpZ2l0
...
-----END CERTIFICATE-----
'''
]
'';
description = ''
A list of trusted root certificates in PEM format.
'';
};
security.pki.caCertificateBlacklist = mkOption {
type = types.listOf types.str;
default = [];
example = [
"WoSign" "WoSign China"
"CA WoSign ECC Root"
"Certification Authority of WoSign G2"
];
description = ''
A list of blacklisted CA certificate names that won't be imported from
the Mozilla Trust Store into
<filename>/etc/ssl/certs/ca-certificates.crt</filename>. Use the
names from that file.
'';
};
};
config = {
security.pki.certificateFiles = [ "${cacertPackage}/etc/ssl/certs/ca-bundle.crt" ];
# NixOS canonical location + Debian/Ubuntu/Arch/Gentoo compatibility.
environment.etc."ssl/certs/ca-certificates.crt".source = caCertificates;
# Old NixOS compatibility.
environment.etc."ssl/certs/ca-bundle.crt".source = caCertificates;
# CentOS/Fedora compatibility.
environment.etc."pki/tls/certs/ca-bundle.crt".source = caCertificates;
};
}