From 1662ed0c1a464b39ff5b303950c034a352054114 Mon Sep 17 00:00:00 2001
From: Etienne Carriere <etienne.carriere@linaro.org>
Date: Tue, 9 Nov 2021 17:08:20 +0100
Subject: [PATCH] tee: define session login identifiers
Define identifiers for clnt_login field in struct tee_open_session_arg
based in GlobalPlatform Device TEE IDs and on the REE_KERNEL identifier
extension from OP-TEE OS.
Cc: Jens Wiklander <jens.wiklander@linaro.org>
Reviewed-by: Patrick Delaunay <patrick.delaunay@foss.st.com>
Reviewed-by: Jens Wiklander <jens.wiklander@linaro.org>
Signed-off-by: Etienne Carriere <etienne.carriere@linaro.org>
---
include/tee.h | 23 +++++++++++++++++++++--
1 file changed, 21 insertions(+), 2 deletions(-)
diff --git a/include/tee.h b/include/tee.h
index 44e9cd4321..30ea2ee164 100644
--- a/include/tee.h
+++ b/include/tee.h
@@ -31,6 +31,25 @@
#define TEE_PARAM_ATTR_MASK (TEE_PARAM_ATTR_TYPE_MASK | \
TEE_PARAM_ATTR_META)
+/*
+ * Global Platform login identifiers for tee_open_session_arg::clnt_login
+ */
+#define TEE_LOGIN_PUBLIC 0x00000000
+#define TEE_LOGIN_USER 0x00000001
+#define TEE_LOGIN_GROUP 0x00000002
+#define TEE_LOGIN_APPLICATION 0x00000004
+#define TEE_LOGIN_APPLICATION_USER 0x00000005
+#define TEE_LOGIN_APPLICATION_GROUP 0x00000006
+/*
+ * Reserve use of GP implementation specific login method range
+ * (0x80000000 - 0xBFFFFFFF). This range is rather being used
+ * for REE kernel clients or TEE implementation.
+ */
+#define TEE_LOGIN_REE_KERNEL_MIN 0x80000000
+#define TEE_LOGIN_REE_KERNEL_MAX 0xBFFFFFFF
+/* Private login method for REE kernel/privileged clients */
+#define TEE_LOGIN_REE_KERNEL 0x80000000
+
/*
* Some Global Platform error codes which has a meaning if the
* TEE_GEN_CAP_GP bit is returned by the driver in
@@ -135,8 +154,8 @@ struct tee_param {
/**
* struct tee_open_session_arg - extra arguments for tee_open_session()
* @uuid: [in] UUID of the Trusted Application
- * @clnt_uuid: [in] Normally zeroes
- * @clnt_login: [in] Normally 0
+ * @clnt_uuid: [in] UUID of client, zeroes for PUBLIC/REE_KERNEL
+ * @clnt_login: [in] Class of client TEE_LOGIN_*
* @session: [out] Session id
* @ret: [out] return value
* @ret_origin: [out] origin of the return value
--
2.39.5