krb5/Allow-kinit-with-keytab-to-defer-canonicalization.patch
2021-06-17 17:47:21 -04:00

62 lines
2.5 KiB
Diff

From 1bc00e294cddd2061012c50d78eaf65ae06146bb Mon Sep 17 00:00:00 2001
From: Robbie Harwood <rharwood@redhat.com>
Date: Thu, 3 Jun 2021 16:03:07 -0400
Subject: [PATCH] Allow kinit with keytab to defer canonicalization
[ghudson@mit.edu: added tests]
ticket: 9012 (new)
(cherry picked from commit 5e6a6efc5df689d9fb8730d0227167ffbb6ece0e)
(cherry picked from commit 090c7319652466339e3e6482bdd1b5a294638dff)
---
src/clients/kinit/kinit.c | 11 -----------
src/tests/t_keytab.py | 13 +++++++++++++
2 files changed, 13 insertions(+), 11 deletions(-)
diff --git a/src/clients/kinit/kinit.c b/src/clients/kinit/kinit.c
index d1f5d74c3..5a6d7237c 100644
--- a/src/clients/kinit/kinit.c
+++ b/src/clients/kinit/kinit.c
@@ -510,17 +510,6 @@ k5_begin(struct k_opts *opts, struct k5_data *k5)
_("when creating default server principal name"));
goto cleanup;
}
- if (k5->me->realm.data[0] == 0) {
- ret = krb5_unparse_name(k5->ctx, k5->me, &k5->name);
- if (ret == 0) {
- com_err(progname, KRB5_ERR_HOST_REALM_UNKNOWN,
- _("(principal %s)"), k5->name);
- } else {
- com_err(progname, KRB5_ERR_HOST_REALM_UNKNOWN,
- _("for local services"));
- }
- goto cleanup;
- }
} else if (k5->out_cc != NULL) {
/* If the output ccache is initialized, use its principal. */
if (krb5_cc_get_principal(k5->ctx, k5->out_cc, &princ) == 0)
diff --git a/src/tests/t_keytab.py b/src/tests/t_keytab.py
index 850375c92..a9adebb26 100755
--- a/src/tests/t_keytab.py
+++ b/src/tests/t_keytab.py
@@ -41,6 +41,19 @@ realm.kinit(realm.user_princ, flags=['-i'],
expected_msg='keytab specified, forcing -k')
realm.klist(realm.user_princ)
+# Test default principal for -k. This operation requires
+# canonicalization against the keytab in krb5_get_init_creds_keytab()
+# as the krb5_sname_to_principal() result won't have a realm. Try
+# with and without without fallback processing since the code paths
+# are different.
+mark('default principal for -k')
+realm.run([kinit, '-k'])
+realm.klist(realm.host_princ)
+no_canon_conf = {'libdefaults': {'dns_canonicalize_hostname': 'false'}}
+no_canon = realm.special_env('no_canon', False, krb5_conf=no_canon_conf)
+realm.run([kinit, '-k'], env=no_canon)
+realm.klist(realm.host_princ)
+
# Test extracting keys with multiple key versions present.
mark('multi-kvno extract')
os.remove(realm.keytab)