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From f726fe232a16a51ca277b660c61aa9cfc2f512f1 Mon Sep 17 00:00:00 2001
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From: Matt Rogers <mrogers@redhat.com>
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Date: Fri, 9 Dec 2016 11:43:27 -0500
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Subject: [PATCH] Add PKINIT UPN tests to t_pkinit.py
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[ghudson@mit.edu: simplify and explain tests; add test for
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id-pkinit-san match against canonicalized client principal]
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ticket: 8528
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(cherry picked from commit d520fd3f032121b61b22681838af96ee505fe44d)
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---
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src/tests/t_pkinit.py | 57 +++++++++++++++++++++++++++++++++++++++++++
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1 file changed, 57 insertions(+)
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diff --git a/src/tests/t_pkinit.py b/src/tests/t_pkinit.py
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index 526473b42..ac4d326b6 100755
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--- a/src/tests/t_pkinit.py
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+++ b/src/tests/t_pkinit.py
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@@ -23,6 +23,9 @@ privkey_pem = os.path.join(certs, 'privkey.pem')
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privkey_enc_pem = os.path.join(certs, 'privkey-enc.pem')
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user_p12 = os.path.join(certs, 'user.p12')
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user_enc_p12 = os.path.join(certs, 'user-enc.p12')
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+user_upn_p12 = os.path.join(certs, 'user-upn.p12')
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+user_upn2_p12 = os.path.join(certs, 'user-upn2.p12')
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+user_upn3_p12 = os.path.join(certs, 'user-upn3.p12')
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path = os.path.join(os.getcwd(), 'testdir', 'tmp-pkinit-certs')
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path_enc = os.path.join(os.getcwd(), 'testdir', 'tmp-pkinit-certs-enc')
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@@ -36,6 +39,20 @@ pkinit_kdc_conf = {'realms': {'$realm': {
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restrictive_kdc_conf = {'realms': {'$realm': {
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'restrict_anonymous_to_tgt': 'true' }}}
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+testprincs = {'krbtgt/KRBTEST.COM': {'keys': 'aes128-cts'},
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+ 'user': {'keys': 'aes128-cts', 'flags': '+preauth'},
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+ 'user2': {'keys': 'aes128-cts', 'flags': '+preauth'}}
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+alias_kdc_conf = {'realms': {'$realm': {
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+ 'default_principal_flags': '+preauth',
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+ 'pkinit_eku_checking': 'none',
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+ 'pkinit_allow_upn': 'true',
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+ 'pkinit_identity': 'FILE:%s,%s' % (kdc_pem, privkey_pem),
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+ 'database_module': 'test'}},
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+ 'dbmodules': {'test': {
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+ 'db_library': 'test',
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+ 'alias': {'user@krbtest.com': 'user'},
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+ 'princs': testprincs}}}
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+
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file_identity = 'FILE:%s,%s' % (user_pem, privkey_pem)
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file_enc_identity = 'FILE:%s,%s' % (user_pem, privkey_enc_pem)
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dir_identity = 'DIR:%s' % path
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@@ -45,11 +62,51 @@ dir_file_identity = 'FILE:%s,%s' % (os.path.join(path, 'user.crt'),
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dir_file_enc_identity = 'FILE:%s,%s' % (os.path.join(path_enc, 'user.crt'),
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os.path.join(path_enc, 'user.key'))
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p12_identity = 'PKCS12:%s' % user_p12
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+p12_upn_identity = 'PKCS12:%s' % user_upn_p12
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+p12_upn2_identity = 'PKCS12:%s' % user_upn2_p12
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+p12_upn3_identity = 'PKCS12:%s' % user_upn3_p12
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p12_enc_identity = 'PKCS12:%s' % user_enc_p12
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p11_identity = 'PKCS11:soft-pkcs11.so'
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p11_token_identity = ('PKCS11:module_name=soft-pkcs11.so:'
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'slotid=1:token=SoftToken (token)')
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+# Start a realm with the test kdb module for the following UPN SAN tests.
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+realm = K5Realm(krb5_conf=pkinit_krb5_conf, kdc_conf=alias_kdc_conf,
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+ create_kdb=False)
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+realm.start_kdc()
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+
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+# Compatibility check: cert contains UPN "user", which matches the
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+# request principal user@KRBTEST.COM if parsed as a normal principal.
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+realm.kinit(realm.user_princ,
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+ flags=['-X', 'X509_user_identity=%s' % p12_upn2_identity])
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+
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+# Compatibility check: cert contains UPN "user@KRBTEST.COM", which matches
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+# the request principal user@KRBTEST.COM if parsed as a normal principal.
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+realm.kinit(realm.user_princ,
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+ flags=['-X', 'X509_user_identity=%s' % p12_upn3_identity])
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+
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+# Cert contains UPN "user@krbtest.com" which is aliased to the request
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+# principal.
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+realm.kinit(realm.user_princ,
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+ flags=['-X', 'X509_user_identity=%s' % p12_upn_identity])
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+
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+# Test an id-pkinit-san match to a post-canonical principal.
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+realm.kinit('user@krbtest.com',
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+ flags=['-E', '-X', 'X509_user_identity=%s' % p12_identity])
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+
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+# Test a UPN match to a post-canonical principal. (This only works
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+# for the cert with the UPN containing just "user", as we don't allow
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+# UPN reparsing when comparing to the canonicalized client principal.)
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+realm.kinit('user@krbtest.com',
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+ flags=['-E', '-X', 'X509_user_identity=%s' % p12_upn2_identity])
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+
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+# Test a mismatch.
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+out = realm.run([kinit, '-X', 'X509_user_identity=%s' % p12_upn2_identity,
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+ 'user2'], expected_code=1)
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+if 'kinit: Client name mismatch while getting initial credentials' not in out:
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+ fail('Wrong error for UPN SAN mismatch')
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+realm.stop()
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+
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realm = K5Realm(krb5_conf=pkinit_krb5_conf, kdc_conf=pkinit_kdc_conf,
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get_creds=False)
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