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authorFilip Tehlar <ftehlar@cisco.com>2020-07-01 08:56:59 +0000
committerBenoƮt Ganne <bganne@cisco.com>2020-07-06 13:34:10 +0000
commit4f42a717798ca25cf575587cbc606d6d7787fedd (patch)
tree9fb53429cec979898a5c1fc45b52333409ae2fd7
parent9268b5823fa7a16195f638e5b1f9c54b430f2f3c (diff)
ikev2: add more ikev2 tests
Tests for AES-GCM and AES-CBC with different key lengths Type: test Change-Id: Ie7eeebb0f7e8331a717866475cb4ee00042857ce Signed-off-by: Filip Tehlar <ftehlar@cisco.com>
-rw-r--r--src/plugins/ikev2/test/test_ikev2.py153
1 files changed, 135 insertions, 18 deletions
diff --git a/src/plugins/ikev2/test/test_ikev2.py b/src/plugins/ikev2/test/test_ikev2.py
index f0053fd..918b5ce 100644
--- a/src/plugins/ikev2/test/test_ikev2.py
+++ b/src/plugins/ikev2/test/test_ikev2.py
@@ -15,6 +15,7 @@ from scapy.packet import raw, Raw
from scapy.utils import long_converter
from framework import VppTestCase, VppTestRunner
from vpp_ikev2 import Profile, IDType, AuthMethod
+from vpp_papi import VppEnum
KEY_PAD = b"Key Pad for IKEv2"
@@ -34,7 +35,25 @@ DH = {
670C354E 4ABC9804 F1746C08 CA18217C 32905E46 2E36CE3B
E39E772C 180E8603 9B2783A2 EC07A28F B5C55DF0 6F4C52C9
DE2BCBF6 95581718 3995497C EA956AE5 15D22618 98FA0510
- 15728E5A 8AACAA68 FFFFFFFF FFFFFFFF"""), 2, 256)
+ 15728E5A 8AACAA68 FFFFFFFF FFFFFFFF"""), 2, 256),
+
+ '3072MODPgr': (long_converter("""
+ FFFFFFFF FFFFFFFF C90FDAA2 2168C234 C4C6628B 80DC1CD1
+ 29024E08 8A67CC74 020BBEA6 3B139B22 514A0879 8E3404DD
+ EF9519B3 CD3A431B 302B0A6D F25F1437 4FE1356D 6D51C245
+ E485B576 625E7EC6 F44C42E9 A637ED6B 0BFF5CB6 F406B7ED
+ EE386BFB 5A899FA5 AE9F2411 7C4B1FE6 49286651 ECE45B3D
+ C2007CB8 A163BF05 98DA4836 1C55D39A 69163FA8 FD24CF5F
+ 83655D23 DCA3AD96 1C62F356 208552BB 9ED52907 7096966D
+ 670C354E 4ABC9804 F1746C08 CA18217C 32905E46 2E36CE3B
+ E39E772C 180E8603 9B2783A2 EC07A28F B5C55DF0 6F4C52C9
+ DE2BCBF6 95581718 3995497C EA956AE5 15D22618 98FA0510
+ 15728E5A 8AAAC42D AD33170D 04507A33 A85521AB DF1CBA64
+ ECFB8504 58DBEF0A 8AEA7157 5D060C7D B3970F85 A6E1E4C7
+ ABF5AE8C DB0933D7 1E8C94E0 4A25619D CEE3D226 1AD2EE6B
+ F12FFA06 D98A0864 D8760273 3EC86A64 521F2B18 177B200C
+ BBE11757 7A615D6C 770988C0 BAD946E2 08E24FA0 74E5AB31
+ 43DB5BFC E0FD108E 4B82D120 A93AD2CA FFFFFFFF FFFFFFFF"""), 2, 384)
}
@@ -78,11 +97,16 @@ class AuthAlgo(object):
CRYPTO_ALGOS = {
'NULL': CryptoAlgo('NULL', cipher=None, mode=None),
'AES-CBC': CryptoAlgo('AES-CBC', cipher=algorithms.AES, mode=modes.CBC),
+ 'AES-GCM-16ICV': CryptoAlgo('AES-GCM-16ICV', cipher=algorithms.AES,
+ mode=modes.GCM),
}
AUTH_ALGOS = {
'NULL': AuthAlgo('NULL', mac=None, mod=None, key_len=0, trunc_len=0),
'HMAC-SHA1-96': AuthAlgo('HMAC-SHA1-96', hmac.HMAC, hashes.SHA1, 20, 12),
+ 'SHA2-256-128': AuthAlgo('SHA2-256-128', hmac.HMAC, hashes.SHA256, 32, 16),
+ 'SHA2-384-192': AuthAlgo('SHA2-384-192', hmac.HMAC, hashes.SHA256, 48, 24),
+ 'SHA2-512-256': AuthAlgo('SHA2-512-256', hmac.HMAC, hashes.SHA256, 64, 32),
}
PRF_ALGOS = {
@@ -169,23 +193,34 @@ class IKEv2SA(object):
c = self.child_sas[0]
encr_key_len = self.esp_crypto_key_len
- integ_key_len = self.ike_integ_alg.key_len
+ integ_key_len = self.esp_integ_alg.key_len
+ salt_len = 0 if integ_key_len else 4
+
l = (integ_key_len * 2 +
- encr_key_len * 2)
+ encr_key_len * 2 +
+ salt_len * 2)
keymat = self.calc_prfplus(prf, self.sk_d, s, l)
pos = 0
c.sk_ei = keymat[pos:pos+encr_key_len]
pos += encr_key_len
- c.sk_ai = keymat[pos:pos+integ_key_len]
- pos += integ_key_len
+ if integ_key_len:
+ c.sk_ai = keymat[pos:pos+integ_key_len]
+ pos += integ_key_len
+ else:
+ c.salt_ei = keymat[pos:pos+salt_len]
+ pos += salt_len
c.sk_er = keymat[pos:pos+encr_key_len]
pos += encr_key_len
- c.sk_ar = keymat[pos:pos+integ_key_len]
- pos += integ_key_len
+ if integ_key_len:
+ c.sk_ar = keymat[pos:pos+integ_key_len]
+ pos += integ_key_len
+ else:
+ c.salt_er = keymat[pos:pos+salt_len]
+ pos += salt_len
def calc_prfplus(self, prf, key, seed, length):
r = b''
@@ -296,6 +331,17 @@ class IKEv2SA(object):
return self.sk_er
return self.sk_ei
+ def concat(self, alg, key_len):
+ return alg + '-' + str(key_len * 8)
+
+ @property
+ def vpp_ike_cypto_alg(self):
+ return self.concat(self.ike_crypto, self.ike_crypto_key_len)
+
+ @property
+ def vpp_esp_cypto_alg(self):
+ return self.concat(self.esp_crypto, self.esp_crypto_key_len)
+
def verify_hmac(self, ikemsg):
integ_trunc = self.ike_integ_alg.trunc_len
exp_hmac = ikemsg[-integ_trunc:]
@@ -361,7 +407,7 @@ class IKEv2SA(object):
if integ not in AUTH_ALGOS:
raise TypeError('unsupported auth algo %r' % integ)
- self.esp_integ = integ
+ self.esp_integ = None if integ == 'NULL' else integ
self.esp_integ_alg = AUTH_ALGOS[integ]
def crypto_attr(self, key_len):
@@ -384,7 +430,7 @@ class IKEv2SA(object):
class TemplateResponder(VppTestCase):
- """ responder test """
+ """ responder test template """
@classmethod
def setUpClass(cls):
@@ -579,6 +625,17 @@ class TemplateResponder(VppTestCase):
sa1 = sas[1].entry
c = self.sa.child_sas[0]
+ vpp_crypto_alg = self.vpp_enums[self.sa.vpp_esp_cypto_alg]
+ self.assertEqual(sa0.crypto_algorithm, vpp_crypto_alg)
+ self.assertEqual(sa1.crypto_algorithm, vpp_crypto_alg)
+
+ if self.sa.esp_integ is None:
+ vpp_integ_alg = 0
+ else:
+ vpp_integ_alg = self.vpp_enums[self.sa.esp_integ]
+ self.assertEqual(sa0.integrity_algorithm, vpp_integ_alg)
+ self.assertEqual(sa1.integrity_algorithm, vpp_integ_alg)
+
# verify crypto keys
self.assertEqual(sa0.crypto_key.length, len(c.sk_er))
self.assertEqual(sa1.crypto_key.length, len(c.sk_ei))
@@ -586,10 +643,14 @@ class TemplateResponder(VppTestCase):
self.assertEqual(sa1.crypto_key.data[:len(c.sk_ei)], c.sk_ei)
# verify integ keys
- self.assertEqual(sa0.integrity_key.length, len(c.sk_ar))
- self.assertEqual(sa1.integrity_key.length, len(c.sk_ai))
- self.assertEqual(sa0.integrity_key.data[:len(c.sk_ar)], c.sk_ar)
- self.assertEqual(sa1.integrity_key.data[:len(c.sk_ai)], c.sk_ai)
+ if vpp_integ_alg:
+ self.assertEqual(sa0.integrity_key.length, len(c.sk_ar))
+ self.assertEqual(sa1.integrity_key.length, len(c.sk_ai))
+ self.assertEqual(sa0.integrity_key.data[:len(c.sk_ar)], c.sk_ar)
+ self.assertEqual(sa1.integrity_key.data[:len(c.sk_ai)], c.sk_ai)
+ else:
+ self.assertEqual(sa0.salt.to_bytes(4, 'little'), c.salt_er)
+ self.assertEqual(sa1.salt.to_bytes(4, 'little'), c.salt_ei)
def test_responder(self):
self.send_sa_init(self.sa.natt)
@@ -599,6 +660,21 @@ class TemplateResponder(VppTestCase):
class Ikev2Params(object):
def config_params(self, params={}):
+ ec = VppEnum.vl_api_ipsec_crypto_alg_t
+ ei = VppEnum.vl_api_ipsec_integ_alg_t
+ self.vpp_enums = {
+ 'AES-CBC-128': ec.IPSEC_API_CRYPTO_ALG_AES_CBC_128,
+ 'AES-CBC-192': ec.IPSEC_API_CRYPTO_ALG_AES_CBC_192,
+ 'AES-CBC-256': ec.IPSEC_API_CRYPTO_ALG_AES_CBC_256,
+ 'AES-GCM-16ICV-128': ec.IPSEC_API_CRYPTO_ALG_AES_GCM_128,
+ 'AES-GCM-16ICV-192': ec.IPSEC_API_CRYPTO_ALG_AES_GCM_192,
+ 'AES-GCM-16ICV-256': ec.IPSEC_API_CRYPTO_ALG_AES_GCM_256,
+
+ 'HMAC-SHA1-96': ei.IPSEC_API_INTEG_ALG_SHA1_96,
+ 'SHA2-256-128': ei.IPSEC_API_INTEG_ALG_SHA_256_128,
+ 'SHA2-384-192': ei.IPSEC_API_INTEG_ALG_SHA_384_192,
+ 'SHA2-512-256': ei.IPSEC_API_INTEG_ALG_SHA_512_256}
+
is_natt = 'natt' in params and params['natt'] or False
self.p = Profile(self, 'pr1')
@@ -636,11 +712,23 @@ class Ikev2Params(object):
auth_data=auth_data,
local_ts=self.p.remote_ts, remote_ts=self.p.local_ts)
- self.sa.set_ike_props(crypto='AES-CBC', crypto_key_len=32,
- integ='HMAC-SHA1-96', prf='PRF_HMAC_SHA2_256',
- dh='2048MODPgr')
- self.sa.set_esp_props(crypto='AES-CBC', crypto_key_len=32,
- integ='HMAC-SHA1-96')
+ ike_crypto = ('AES-CBC', 32) if 'ike-crypto' not in params else\
+ params['ike-crypto']
+ ike_integ = 'HMAC-SHA1-96' if 'ike-integ' not in params else\
+ params['ike-integ']
+ ike_dh = '2048MODPgr' if 'ike-dh' not in params else params['ike-dh']
+
+ esp_crypto = ('AES-CBC', 32) if 'esp-crypto' not in params else\
+ params['esp-crypto']
+ esp_integ = 'HMAC-SHA1-96' if 'esp-integ' not in params else\
+ params['esp-integ']
+
+ self.sa.set_ike_props(
+ crypto=ike_crypto[0], crypto_key_len=ike_crypto[1],
+ integ=ike_integ, prf='PRF_HMAC_SHA2_256', dh=ike_dh)
+ self.sa.set_esp_props(
+ crypto=esp_crypto[0], crypto_key_len=esp_crypto[1],
+ integ=esp_integ)
class TestResponderNATT(TemplateResponder, Ikev2Params):
@@ -666,5 +754,34 @@ class TestResponderRsaSign(TemplateResponder, Ikev2Params):
'client-cert': 'client-cert.pem',
'server-cert': 'server-cert.pem'})
+
+class Test_IKE_AES_CBC_128_SHA256_128_MODP2048_ESP_AES_CBC_192_SHA_384_192\
+ (TemplateResponder, Ikev2Params):
+ """
+ IKE:AES_CBC_128_SHA256_128,DH=modp2048 ESP:AES_CBC_192_SHA_384_192
+ """
+ def config_tc(self):
+ self.config_params({
+ 'ike-crypto': ('AES-CBC', 16),
+ 'ike-integ': 'SHA2-256-128',
+ 'esp-crypto': ('AES-CBC', 24),
+ 'esp-integ': 'SHA2-384-192',
+ 'ike-dh': '2048MODPgr'})
+
+
+class TestAES_CBC_128_SHA256_128_MODP3072_ESP_AES_GCM_16\
+ (TemplateResponder, Ikev2Params):
+ """
+ IKE:AES_CBC_128_SHA256_128,DH=modp3072 ESP:AES_GCM_16
+ """
+ def config_tc(self):
+ self.config_params({
+ 'ike-crypto': ('AES-CBC', 32),
+ 'ike-integ': 'SHA2-256-128',
+ 'esp-crypto': ('AES-GCM-16ICV', 32),
+ 'esp-integ': 'NULL',
+ 'ike-dh': '3072MODPgr'})
+
+
if __name__ == '__main__':
unittest.main(testRunner=VppTestRunner)