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From aa153bb60c4fdc05adbc88cca578612fce6c8ce0 Mon Sep 17 00:00:00 2001
From: Matt Rogers <mrogers@redhat.com>
Date: Tue, 4 Apr 2017 16:54:56 -0400
Subject: [PATCH] Add the client_name() kdcpreauth callback
Add a kdcpreauth callback to returns the canonicalized client principal.
ticket: 8570 (new)
(cherry picked from commit a84f39ec30f3deeda7836da6e8b3d8dcf7a045b1)
---
src/include/krb5/kdcpreauth_plugin.h | 6 ++++++
src/kdc/kdc_preauth.c | 9 ++++++++-
2 files changed, 14 insertions(+), 1 deletion(-)
diff --git a/src/include/krb5/kdcpreauth_plugin.h b/src/include/krb5/kdcpreauth_plugin.h
index 92aa5a5a5..fa4436b83 100644
--- a/src/include/krb5/kdcpreauth_plugin.h
+++ b/src/include/krb5/kdcpreauth_plugin.h
@@ -232,6 +232,12 @@ typedef struct krb5_kdcpreauth_callbacks_st {
krb5_kdcpreauth_rock rock,
krb5_principal princ);
+ /*
+ * Get an alias to the client DB entry principal (possibly canonicalized).
+ */
+ krb5_principal (*client_name)(krb5_context context,
+ krb5_kdcpreauth_rock rock);
+
/* End of version 4 kdcpreauth callbacks. */
} *krb5_kdcpreauth_callbacks;
diff --git a/src/kdc/kdc_preauth.c b/src/kdc/kdc_preauth.c
index 0ce79c667..81d0b8cff 100644
--- a/src/kdc/kdc_preauth.c
+++ b/src/kdc/kdc_preauth.c
@@ -591,6 +591,12 @@ match_client(krb5_context context, krb5_kdcpreauth_rock rock,
return match;
}
+static krb5_principal
+client_name(krb5_context context, krb5_kdcpreauth_rock rock)
+{
+ return rock->client->princ;
+}
+
static struct krb5_kdcpreauth_callbacks_st callbacks = {
4,
max_time_skew,
@@ -607,7 +613,8 @@ static struct krb5_kdcpreauth_callbacks_st callbacks = {
add_auth_indicator,
get_cookie,
set_cookie,
- match_client
+ match_client,
+ client_name
};
static krb5_error_code