Add new call find_or_guess_upn()

With the current approach the upn was either a pointer to a const string
in a ldb_message or a string created with the help of talloc. This new
function always makes it a talloc'ed value.

Additionally krb5_get_simple_upn() is enhanced to handle sub-domains as
well.

1 files changed, 5 insertions, 0 deletions

diff --git a/src/providers/krb5/krb5_utils.h b/src/providers/krb5/krb5_utils.h
index 43fe77bd..28485458 100644
--- a/src/providers/krb5/krb5_utils.h
+++ b/src/providers/krb5/krb5_utils.h
@@ -32,6 +32,11 @@
 #include "providers/krb5/krb5_auth.h"
 #include "providers/data_provider.h"
 
+errno_t find_or_guess_upn(TALLOC_CTX *mem_ctx, struct ldb_message *msg,
+                          struct krb5_ctx *krb5_ctx,
+                          const char *domain_name, const char *user,
+                          const char *user_dom, char **_upn);
+
 /* Operations on a credential cache */
 typedef errno_t (*cc_be_create_fn)(const char *location, pcre *illegal_re,
                                    uid_t uid, gid_t gid, bool private_path);