Improve acceptor name flexibility

Be more flexible about the principal names we will accept for a given
GSS acceptor name.  Also add support for a new libdefaults profile
variable ignore_acceptor_hostname, which causes the hostnames of
host-based service principals to be ignored when passed by server
applications as acceptor names.

Note that we still always invoke krb5_sname_to_principal() when
importing a gss-krb5 mechanism name, even though we won't always use
the result.  This is an unfortunate waste of getaddrinfo/getnameinfo
queries in some situations, but the code surgery necessary to defer
it appears too risky at this time.

The project proposal for this change is at:

http://k5wiki.kerberos.org/wiki/Projects/Acceptor_Names

ticket: 6855

git-svn-id: svn://anonsvn.mit.edu/krb5/trunk@24616 dc483132-0cff-0310-8789-dd5450dbe970

1 files changed, 2 insertions, 0 deletions

diff --git a/src/include/k5-int.h b/src/include/k5-int.h
index d188f8e9d..92ff1f043 100644
--- a/src/include/k5-int.h
+++ b/src/include/k5-int.h
@@ -217,6 +217,7 @@ typedef INT64_TYPE krb5_int64;
 #define KRB5_CONF_EXTRA_ADDRESSES             "extra_addresses"
 #define KRB5_CONF_FORWARDABLE                 "forwardable"
 #define KRB5_CONF_HOST_BASED_SERVICES         "host_based_services"
+#define KRB5_CONF_IGNORE_ACCEPTOR_HOSTNAME    "ignore_acceptor_hostname"
 #define KRB5_CONF_IPROP_ENABLE                "iprop_enable"
 #define KRB5_CONF_IPROP_MASTER_ULOGSIZE       "iprop_master_ulogsize"
 #define KRB5_CONF_IPROP_PORT                  "iprop_port"
@@ -1600,6 +1601,7 @@ struct _krb5_context {
     struct _kdb_log_context *kdblog_context;
 
     krb5_boolean allow_weak_crypto;
+    krb5_boolean ignore_acceptor_hostname;
 
     krb5_trace_callback trace_callback;
     void *trace_callback_data;