1{ lib
2, stdenv
3, fetchFromGitHub
4, fetchpatch
5, protobufc
6, pkg-config
7, fuse3
8, meson
9, ninja
10, libselinux
11, jitterentropy
12, botan3
13, openssl
14, libkcapi
15
16# A more detailed explaination of the following meson build options can be found
17# in the source code of esdm.
18# A brief explanation is given.
19
20# general options
21, selinux ? false # enable selinux support
22, drngHashDrbg ? true # set the default drng callback
23, drngChaCha20 ? false # set the default drng callback
24, ais2031 ? false # set the seeding strategy to be compliant with AIS 20/31
25, sp80090c ? false # set compliance with NIST SP800-90C
26, cryptoBackend ? "botan" # set backend for hash and drbg operations
27, linuxDevFiles ? true # enable linux /dev/random and /dev/urandom support
28, linuxGetRandom ? true # enable linux getrandom support
29, hashSha512 ? false # set the conditioning hash: SHA2-512
30, hashSha3_512 ? true # set the conditioning hash: SHA3-512
31, openSSLRandProvider ? true # build ESDM provider for OpenSSL 3.x
32, botanRng ? true # build ESDM class for Botan 3.x
33
34# client-related options (handle with care, consult source code and meson options)
35# leave as is if in doubt
36, connectTimeoutExponent ? 28 # (1 << EXPONENT nanoseconds)
37, rxTxTimeoutExponent ? 28 # (1 << EXPONENT nanoseconds)
38, reconnectAttempts ? 10 # how often to attempt unix socket connection before giving up
39
40# entropy sources
41, esJitterRng ? true # enable support for the entropy source: jitter rng (running in user space)
42, esJitterRngEntropyRate ? 256 # amount of entropy to account for jitter rng source
43, esJitterRngKernel ? true # enable support for the entropy source: jitter rng (running in kernel space)
44, esJitterRngKernelEntropyRate ? 256 # amount of entropy to account for kernel jitter rng source
45, esCPU ? true # enable support for the entropy source: cpu-based entropy
46, esCPUEntropyRate ? 8 # amount of entropy to account for cpu rng source
47, esKernel ? true # enable support for the entropy source: kernel-based entropy
48, esKernelEntropyRate ? 128 # amount of entropy to account for kernel-based source
49, esIRQ ? false # enable support for the entropy source: interrupt-based entropy
50, esIRQEntropyRate ? 256 # amount of entropy to account for interrupt-based source (only set irq XOR sched != 0)
51, esSched ? false # enable support for the entropy source: scheduler-based entropy
52, esSchedEntropyRate ? 0 # amount of entropy to account for interrupt-based source (only set irq XOR sched != 0)
53, esHwrand ? true # enable support for the entropy source: /dev/hwrng
54, esHwrandEntropyRate ? 128 # amount of entropy to account for /dev/hwrng-based sources
55}:
56
57assert drngHashDrbg != drngChaCha20;
58assert hashSha512 != hashSha3_512;
59assert cryptoBackend == "openssl" || cryptoBackend == "botan" || cryptoBackend == "builtin" "Unsupported ESDM crypto backend";
60
61stdenv.mkDerivation rec {
62 pname = "esdm";
63 version = "1.0.0";
64
65 src = fetchFromGitHub {
66 owner = "smuellerDD";
67 repo = "esdm";
68 rev = "v${version}";
69 sha256 = "sha256-q6TGL1agltV9CFfcA6hZszVwGIBBngs22ZqhQgc9FeM=";
70 };
71
72 nativeBuildInputs = [ meson pkg-config ninja ];
73 buildInputs = [ protobufc ]
74 ++ lib.optional (cryptoBackend == "botan" || botanRng) botan3
75 ++ lib.optional (cryptoBackend == "openssl" || openSSLRandProvider) openssl
76 ++ lib.optional selinux libselinux
77 ++ lib.optional esJitterRng jitterentropy
78 ++ lib.optional linuxDevFiles fuse3
79 ++ lib.optional esJitterRngKernel libkcapi;
80
81 mesonFlags = [
82 (lib.mesonBool "b_lto" false)
83 (lib.mesonBool "fips140" false)
84 (lib.mesonBool "ais2031" ais2031)
85 (lib.mesonBool "sp80090c" sp80090c)
86 (lib.mesonEnable "node" true) # multiple DRNGs
87 (lib.mesonOption "threading_max_threads" (toString 64))
88 (lib.mesonOption "crypto_backend" cryptoBackend)
89 (lib.mesonEnable "linux-devfiles" linuxDevFiles)
90 (lib.mesonEnable "linux-getrandom" linuxGetRandom)
91 (lib.mesonOption "client-connect-timeout-exponent" (toString connectTimeoutExponent))
92 (lib.mesonOption "client-rx-tx-timeout-exponent" (toString rxTxTimeoutExponent))
93 (lib.mesonOption "client-reconnect-attempts" (toString reconnectAttempts))
94 (lib.mesonEnable "es_jent" esJitterRng)
95 (lib.mesonOption "es_jent_entropy_rate" (toString esJitterRngEntropyRate))
96 (lib.mesonEnable "es_jent_kernel" esJitterRngKernel)
97 (lib.mesonOption "es_jent_kernel_entropy_rate" (toString esJitterRngKernelEntropyRate))
98 (lib.mesonEnable "es_cpu" esCPU)
99 (lib.mesonOption "es_cpu_entropy_rate" (toString esCPUEntropyRate))
100 (lib.mesonEnable "es_kernel" esKernel)
101 (lib.mesonOption "es_kernel_entropy_rate" (toString esKernelEntropyRate))
102 (lib.mesonEnable "es_irq" esIRQ)
103 (lib.mesonOption "es_irq_entropy_rate" (toString esIRQEntropyRate))
104 (lib.mesonEnable "es_sched" esSched)
105 (lib.mesonOption "es_sched_entropy_rate" (toString esSchedEntropyRate))
106 (lib.mesonEnable "es_hwrand" esHwrand)
107 (lib.mesonOption "es_hwrand_entropy_rate" (toString esHwrandEntropyRate))
108 (lib.mesonEnable "hash_sha512" hashSha512)
109 (lib.mesonEnable "hash_sha3_512" hashSha3_512)
110 (lib.mesonEnable "selinux" selinux)
111 (lib.mesonEnable "drng_hash_drbg" drngHashDrbg)
112 (lib.mesonEnable "drng_chacha20" drngChaCha20)
113 (lib.mesonEnable "openssl-rand-provider" openSSLRandProvider)
114 (lib.mesonEnable "botan-rng" botanRng)
115 ];
116
117 doCheck = true;
118
119 strictDeps = true;
120 mesonBuildType = "release";
121
122 meta = {
123 homepage = "https://www.chronox.de/esdm.html";
124 description = "Entropy Source and DRNG Manager in user space";
125 license = with lib.licenses; [ gpl2Only bsd3 ];
126 platforms = lib.platforms.linux;
127 maintainers = with lib.maintainers; [ orichter thillux ];
128 };
129}