s4-credentials: added ability to control forwardable attribute on krb5 tickets

with the latest bind9 nsupdate, we need to be able to control if the
ticket we use is forwardable

Pair-Programmed-With: Andrew Bartlett <abartlet@samba.org>

2 files changed, 24 insertions, 0 deletions

diff --git a/source4/auth/credentials/credentials.c b/source4/auth/credentials/credentials.c
index acdcfdee69..e1965b3f84 100644
--- a/source4/auth/credentials/credentials.c
+++ b/source4/auth/credentials/credentials.c
@@ -109,6 +109,7 @@ _PUBLIC_ struct cli_credentials *cli_credentials_init(TALLOC_CTX *mem_ctx)
 
 	cli_credentials_set_kerberos_state(cred, CRED_AUTO_USE_KERBEROS);
 	cli_credentials_set_gensec_features(cred, 0);
+	cli_credentials_set_krb_forwardable(cred, CRED_AUTO_KRB_FORWARDABLE);
 
 	return cred;
 }
@@ -133,11 +134,22 @@ _PUBLIC_ void cli_credentials_set_kerberos_state(struct cli_credentials *creds,
 	creds->use_kerberos = use_kerberos;
 }
 
+_PUBLIC_ void cli_credentials_set_krb_forwardable(struct cli_credentials *creds,
+						  enum credentials_krb_forwardable krb_forwardable)
+{
+	creds->krb_forwardable = krb_forwardable;
+}
+
 _PUBLIC_ enum credentials_use_kerberos cli_credentials_get_kerberos_state(struct cli_credentials *creds)
 {
 	return creds->use_kerberos;
 }
 
+_PUBLIC_ enum credentials_krb_forwardable cli_credentials_get_krb_forwardable(struct cli_credentials *creds)
+{
+	return creds->krb_forwardable;
+}
+
 _PUBLIC_ void cli_credentials_set_gensec_features(struct cli_credentials *creds, uint32_t gensec_features)
 {
 	creds->gensec_features = gensec_features;
diff --git a/source4/auth/credentials/credentials.h b/source4/auth/credentials/credentials.h
index c4c7d3f246..b7a9540d86 100644
--- a/source4/auth/credentials/credentials.h
+++ b/source4/auth/credentials/credentials.h
@@ -44,6 +44,12 @@ enum credentials_use_kerberos {
 	CRED_MUST_USE_KERBEROS      /* Sometimes administrators are parinoid, so always do kerberos */
 };
 
+enum credentials_krb_forwardable {
+	CRED_AUTO_KRB_FORWARDABLE = 0, /* Default, follow library defaults */
+	CRED_NO_KRB_FORWARDABLE,       /* not forwardable */
+	CRED_FORCE_KRB_FORWARDABLE     /* forwardable */
+};
+
 #define CLI_CRED_NTLM2       0x01
 #define CLI_CRED_NTLMv2_AUTH 0x02
 #define CLI_CRED_LANMAN_AUTH 0x04
@@ -122,6 +128,9 @@ struct cli_credentials {
 	/* Should we be trying to use kerberos? */
 	enum credentials_use_kerberos use_kerberos;
 
+	/* Should we get a forwardable ticket? */
+	enum credentials_krb_forwardable krb_forwardable;
+
 	/* gensec features which should be used for connections */
 	uint32_t gensec_features;
 
@@ -193,6 +202,8 @@ int cli_credentials_get_client_gss_creds(struct cli_credentials *cred,
 					 const char **error_string);
 void cli_credentials_set_kerberos_state(struct cli_credentials *creds, 
 					enum credentials_use_kerberos use_kerberos);
+void cli_credentials_set_krb_forwardable(struct cli_credentials *creds,
+					 enum credentials_krb_forwardable krb_forwardable);
 bool cli_credentials_set_domain(struct cli_credentials *cred, 
 				const char *val, 
 				enum credentials_obtained obtained);
@@ -280,6 +291,7 @@ const char *cli_credentials_get_salt_principal(struct cli_credentials *cred);
 const char *cli_credentials_get_impersonate_principal(struct cli_credentials *cred);
 const char *cli_credentials_get_target_service(struct cli_credentials *cred);
 enum credentials_use_kerberos cli_credentials_get_kerberos_state(struct cli_credentials *creds);
+enum credentials_krb_forwardable cli_credentials_get_krb_forwardable(struct cli_credentials *creds);
 NTSTATUS cli_credentials_set_secrets(struct cli_credentials *cred, 
 				     struct tevent_context *event_ctx,
 				     struct loadparm_context *lp_ctx,