Add GlobalPlatform API client library (libteec) and example app (optee_gp)

examples/optee/optee_main.c

@@ -39,6 +39,16 @@
  * Pre-processor definitions
  ****************************************************************************/
 
+#undef USE_ALLOC_IOC
+
+#ifdef USE_ALLOC_IOC
+#  define tee_shm_alloc          tee_shm_mmap
+#  define tee_shm_free_buf(p, s) munmap(p, s)
+#else
+#  define tee_shm_alloc          tee_shm_malloc
+#  define tee_shm_free_buf(p, s) ((void)s, free(p))
+#endif
+
 #define OPTEE_DEV                 "/dev/tee0"
 
 #define PTA_DEVICE_ENUM           { 0x7011a688, 0xddde, 0x4053, \
@@ -183,17 +193,16 @@ static int tee_shm_register(int fd, tee_shm_t *shm)
       return -EINVAL;
     }
 
-  shm->id = (int32_t)(uintptr_t)shm->ptr;
-
   ioc_reg.addr = (uintptr_t)shm->ptr;
   ioc_reg.length = shm->size;
-  ioc_reg.flags = TEE_SHM_REGISTER | TEE_SHM_SEC_REGISTER;
-  ioc_reg.id = shm->id;
 
-  return ioctl(fd, TEE_IOC_SHM_REGISTER, (unsigned long)&ioc_reg);
+  shm->fd = ioctl(fd, TEE_IOC_SHM_REGISTER, (unsigned long)&ioc_reg);
+  shm->id = ioc_reg.id;
+
+  return shm->fd < 0 ? shm->fd : 0;
 }
 
-#if 0 /* Not used */
+#ifdef USE_ALLOC_IOC
 static int tee_shm_mmap(int fd, tee_shm_t *shm, bool reg)
 {
   struct tee_ioctl_shm_alloc_data ioc_alloc;
@@ -235,9 +244,9 @@ static int tee_shm_mmap(int fd, tee_shm_t *shm, bool reg)
 
   return ret;
 }
-#endif
 
-static int tee_shm_alloc(int fd, tee_shm_t *shm, bool reg)
+#else /* !USE_ALLOC_IOC */
+static int tee_shm_malloc(int fd, tee_shm_t *shm, bool reg)
 {
   int ret = 0;
 
@@ -265,6 +274,7 @@ static int tee_shm_alloc(int fd, tee_shm_t *shm, bool reg)
 
   return ret;
 }
+#endif /* !USE_ALLOC_IOC */
 
 static void tee_shm_free(tee_shm_t *shm)
 {
@@ -273,18 +283,11 @@ static void tee_shm_free(tee_shm_t *shm)
       return;
     }
 
-  if (shm->fd > 0)
-    {
-      /* Allocated via tee_shm_mmap() */
+  tee_shm_free_buf(shm->ptr, shm->size);
 
-      munmap(shm->ptr, shm->size);
-      close(shm->fd);
-    }
-  else
+  if (shm->fd >= 0)
     {
-      /* Allocated via tee_shm_alloc() */
-
-      free(shm->ptr);
+      close(shm->fd);
     }
 
   shm->ptr = NULL;
@@ -350,6 +353,7 @@ int main(int argc, FAR char *argv[])
     }
 
   par0.attr = TEE_IOCTL_PARAM_ATTR_TYPE_MEMREF_OUTPUT;
+  par0.c = TEE_MEMREF_NULL;
 
   ret = tee_invoke(fd, session, PTA_CMD_GET_DEVICES, &par0, 1);
   if (ret < 0)
@@ -372,7 +376,7 @@ int main(int argc, FAR char *argv[])
   par0.attr = TEE_IOCTL_PARAM_ATTR_TYPE_MEMREF_OUTPUT;
   par0.a = 0;
   par0.b = shm.size;
-  par0.c = (uintptr_t)shm.ptr;
+  par0.c = shm.id;
 
   ret = tee_invoke(fd, session, PTA_CMD_GET_DEVICES, &par0, 1);
   if (ret < 0)

examples/optee_gp/CMakeLists.txt

@@ -0,0 +1,33 @@
+# ##############################################################################
+# apps/examples/optee_gp/CMakeLists.txt
+#
+# SPDX-License-Identifier: Apache-2.0
+#
+# Licensed to the Apache Software Foundation (ASF) under one or more contributor
+# license agreements.  See the NOTICE file distributed with this work for
+# additional information regarding copyright ownership.  The ASF licenses this
+# file to you under the Apache License, Version 2.0 (the "License"); you may not
+# use this file except in compliance with the License.  You may obtain a copy of
+# the License at
+#
+# http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.  See the
+# License for the specific language governing permissions and limitations under
+# the License.
+#
+# ##############################################################################
+
+if(CONFIG_EXAMPLES_OPTEE_GP)
+  nuttx_add_application(
+    NAME
+    ${CONFIG_EXAMPLES_OPTEE_GP_PROGNAME}
+    SRCS
+    optee_gp_main.c
+    STACKSIZE
+    ${CONFIG_EXAMPLES_OPTEE_GP_STACKSIZE}
+    PRIORITY
+    ${CONFIG_EXAMPLES_OPTEE_GP_PRIORITY})
+endif()

examples/optee_gp/Kconfig

@@ -0,0 +1,30 @@
+#
+# For a description of the syntax of this configuration file,
+# see the file kconfig-language.txt in the NuttX tools repository.
+#
+
+config EXAMPLES_OPTEE_GP
+	tristate "OP-TEE GP API client example"
+	depends on LIBTEEC
+	default n
+	---help---
+		Enable the OP-TEE GP API client example which uses libteec
+
+if EXAMPLES_OPTEE
+
+config EXAMPLES_OPTEE_GP_PROGNAME
+	string "Program name"
+	default "optee_gp"
+	---help---
+		This is the name of the program that will be used when the NSH ELF
+		program is installed.
+
+config EXAMPLES_OPTEE_GP_PRIORITY
+	int "OP-TEE GP task priority"
+	default 100
+
+config EXAMPLES_OPTEE_GP_STACKSIZE
+	int "OP-TEE GP stack size"
+	default DEFAULT_TASK_STACKSIZE
+
+endif

examples/optee_gp/Make.defs

@@ -0,0 +1,25 @@
+############################################################################
+# apps/examples/optee_gp/Make.defs
+#
+# SPDX-License-Identifier: Apache-2.0
+#
+# Licensed to the Apache Software Foundation (ASF) under one or more
+# contributor license agreements.  See the NOTICE file distributed with
+# this work for additional information regarding copyright ownership.  The
+# ASF licenses this file to you under the Apache License, Version 2.0 (the
+# "License"); you may not use this file except in compliance with the
+# License.  You may obtain a copy of the License at
+#
+#   http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.  See the
+# License for the specific language governing permissions and limitations
+# under the License.
+#
+############################################################################
+
+ifneq ($(CONFIG_EXAMPLES_OPTEE_GP),)
+CONFIGURED_APPS += $(APPDIR)/examples/optee_gp
+endif

examples/optee_gp/Makefile

@@ -0,0 +1,34 @@
+############################################################################
+# apps/examples/optee_gp/Makefile
+#
+# SPDX-License-Identifier: Apache-2.0
+#
+# Licensed to the Apache Software Foundation (ASF) under one or more
+# contributor license agreements.  See the NOTICE file distributed with
+# this work for additional information regarding copyright ownership.  The
+# ASF licenses this file to you under the Apache License, Version 2.0 (the
+# "License"); you may not use this file except in compliance with the
+# License.  You may obtain a copy of the License at
+#
+#   http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.  See the
+# License for the specific language governing permissions and limitations
+# under the License.
+#
+############################################################################
+
+include $(APPDIR)/Make.defs
+
+# OP-TEE GP API client built-in application info
+
+PROGNAME  = $(CONFIG_EXAMPLES_OPTEE_GP_PROGNAME)
+PRIORITY  = $(CONFIG_EXAMPLES_OPTEE_GP_PRIORITY)
+STACKSIZE = $(CONFIG_EXAMPLES_OPTEE_GP_STACKSIZE)
+MODULE    = $(CONFIG_EXAMPLES_OPTEE_GP)
+
+MAINSRC = optee_gp_main.c
+
+include $(APPDIR)/Application.mk