Removed openssl, and curl, and added mbedded tls.curl-removal

Almost fully removed curl, needs more testing.

Fixed most issues, now trying to cross compile.

Fix?

Sigh.

1 files changed, 383 insertions, 0 deletions

diff --git a/lib/mbedtls-2.27.0/library/psa_crypto_se.c b/lib/mbedtls-2.27.0/library/psa_crypto_se.c
new file mode 100644
index 0000000..56678d6
--- /dev/null
+++ b/lib/mbedtls-2.27.0/library/psa_crypto_se.c
@@ -0,0 +1,383 @@
+/*
+ *  PSA crypto support for secure element drivers
+ */
+/*
+ *  Copyright The Mbed TLS Contributors
+ *  SPDX-License-Identifier: Apache-2.0
+ *
+ *  Licensed 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 "common.h"
+
+#if defined(MBEDTLS_PSA_CRYPTO_SE_C)
+
+#include <assert.h>
+#include <stdint.h>
+#include <string.h>
+
+#include "psa/crypto_se_driver.h"
+
+#include "psa_crypto_se.h"
+
+#if defined(MBEDTLS_PSA_ITS_FILE_C)
+#include "psa_crypto_its.h"
+#else /* Native ITS implementation */
+#include "psa/error.h"
+#include "psa/internal_trusted_storage.h"
+#endif
+
+#include "mbedtls/platform.h"
+#if !defined(MBEDTLS_PLATFORM_C)
+#define mbedtls_calloc calloc
+#define mbedtls_free   free
+#endif
+
+
+
+/****************************************************************/
+/* Driver lookup */
+/****************************************************************/
+
+/* This structure is identical to psa_drv_se_context_t declared in
+ * `crypto_se_driver.h`, except that some parts are writable here
+ * (non-const, or pointer to non-const). */
+typedef struct
+{
+    void *persistent_data;
+    size_t persistent_data_size;
+    uintptr_t transient_data;
+} psa_drv_se_internal_context_t;
+
+struct psa_se_drv_table_entry_s
+{
+    psa_key_location_t location;
+    const psa_drv_se_t *methods;
+    union
+    {
+        psa_drv_se_internal_context_t internal;
+        psa_drv_se_context_t context;
+    } u;
+};
+
+static psa_se_drv_table_entry_t driver_table[PSA_MAX_SE_DRIVERS];
+
+psa_se_drv_table_entry_t *psa_get_se_driver_entry(
+    psa_key_lifetime_t lifetime )
+{
+    size_t i;
+    psa_key_location_t location = PSA_KEY_LIFETIME_GET_LOCATION( lifetime );
+    /* In the driver table, location=0 means an entry that isn't used.
+     * No driver has a location of 0 because it's a reserved value
+     * (which designates transparent keys). Make sure we never return
+     * a driver entry for location 0. */
+    if( location == 0 )
+        return( NULL );
+    for( i = 0; i < PSA_MAX_SE_DRIVERS; i++ )
+    {
+        if( driver_table[i].location == location )
+            return( &driver_table[i] );
+    }
+    return( NULL );
+}
+
+const psa_drv_se_t *psa_get_se_driver_methods(
+    const psa_se_drv_table_entry_t *driver )
+{
+    return( driver->methods );
+}
+
+psa_drv_se_context_t *psa_get_se_driver_context(
+    psa_se_drv_table_entry_t *driver )
+{
+    return( &driver->u.context );
+}
+
+int psa_get_se_driver( psa_key_lifetime_t lifetime,
+                       const psa_drv_se_t **p_methods,
+                       psa_drv_se_context_t **p_drv_context)
+{
+    psa_se_drv_table_entry_t *driver = psa_get_se_driver_entry( lifetime );
+    if( p_methods != NULL )
+        *p_methods = ( driver ? driver->methods : NULL );
+    if( p_drv_context != NULL )
+        *p_drv_context = ( driver ? &driver->u.context : NULL );
+    return( driver != NULL );
+}
+
+
+
+/****************************************************************/
+/* Persistent data management */
+/****************************************************************/
+
+static psa_status_t psa_get_se_driver_its_file_uid(
+    const psa_se_drv_table_entry_t *driver,
+    psa_storage_uid_t *uid )
+{
+    if( driver->location > PSA_MAX_SE_LOCATION )
+        return( PSA_ERROR_NOT_SUPPORTED );
+
+#if SIZE_MAX > UINT32_MAX
+    /* ITS file sizes are limited to 32 bits. */
+    if( driver->u.internal.persistent_data_size > UINT32_MAX )
+        return( PSA_ERROR_NOT_SUPPORTED );
+#endif
+
+    /* See the documentation of PSA_CRYPTO_SE_DRIVER_ITS_UID_BASE. */
+    *uid = PSA_CRYPTO_SE_DRIVER_ITS_UID_BASE + driver->location;
+    return( PSA_SUCCESS );
+}
+
+psa_status_t psa_load_se_persistent_data(
+    const psa_se_drv_table_entry_t *driver )
+{
+    psa_status_t status;
+    psa_storage_uid_t uid;
+    size_t length;
+
+    status = psa_get_se_driver_its_file_uid( driver, &uid );
+    if( status != PSA_SUCCESS )
+        return( status );
+
+    /* Read the amount of persistent data that the driver requests.
+     * If the data in storage is larger, it is truncated. If the data
+     * in storage is smaller, silently keep what is already at the end
+     * of the output buffer. */
+    /* psa_get_se_driver_its_file_uid ensures that the size_t
+     * persistent_data_size is in range, but compilers don't know that,
+     * so cast to reassure them. */
+    return( psa_its_get( uid, 0,
+                         (uint32_t) driver->u.internal.persistent_data_size,
+                         driver->u.internal.persistent_data,
+                         &length ) );
+}
+
+psa_status_t psa_save_se_persistent_data(
+    const psa_se_drv_table_entry_t *driver )
+{
+    psa_status_t status;
+    psa_storage_uid_t uid;
+
+    status = psa_get_se_driver_its_file_uid( driver, &uid );
+    if( status != PSA_SUCCESS )
+        return( status );
+
+    /* psa_get_se_driver_its_file_uid ensures that the size_t
+     * persistent_data_size is in range, but compilers don't know that,
+     * so cast to reassure them. */
+    return( psa_its_set( uid,
+                         (uint32_t) driver->u.internal.persistent_data_size,
+                         driver->u.internal.persistent_data,
+                         0 ) );
+}
+
+psa_status_t psa_destroy_se_persistent_data( psa_key_location_t location )
+{
+    psa_storage_uid_t uid;
+    if( location > PSA_MAX_SE_LOCATION )
+        return( PSA_ERROR_NOT_SUPPORTED );
+    uid = PSA_CRYPTO_SE_DRIVER_ITS_UID_BASE + location;
+    return( psa_its_remove( uid ) );
+}
+
+psa_status_t psa_find_se_slot_for_key(
+    const psa_key_attributes_t *attributes,
+    psa_key_creation_method_t method,
+    psa_se_drv_table_entry_t *driver,
+    psa_key_slot_number_t *slot_number )
+{
+    psa_status_t status;
+    psa_key_location_t key_location =
+        PSA_KEY_LIFETIME_GET_LOCATION( psa_get_key_lifetime( attributes ) );
+
+    /* If the location is wrong, it's a bug in the library. */
+    if( driver->location != key_location )
+        return( PSA_ERROR_CORRUPTION_DETECTED );
+
+    /* If the driver doesn't support key creation in any way, give up now. */
+    if( driver->methods->key_management == NULL )
+        return( PSA_ERROR_NOT_SUPPORTED );
+
+    if( psa_get_key_slot_number( attributes, slot_number ) == PSA_SUCCESS )
+    {
+        /* The application wants to use a specific slot. Allow it if
+         * the driver supports it. On a system with isolation,
+         * the crypto service must check that the application is
+         * permitted to request this slot. */
+        psa_drv_se_validate_slot_number_t p_validate_slot_number =
+            driver->methods->key_management->p_validate_slot_number;
+        if( p_validate_slot_number == NULL )
+            return( PSA_ERROR_NOT_SUPPORTED );
+        status = p_validate_slot_number( &driver->u.context,
+                                         driver->u.internal.persistent_data,
+                                         attributes, method,
+                                         *slot_number );
+    }
+    else if( method == PSA_KEY_CREATION_REGISTER )
+    {
+        /* The application didn't specify a slot number. This doesn't
+         * make sense when registering a slot. */
+        return( PSA_ERROR_INVALID_ARGUMENT );
+    }
+    else
+    {
+        /* The application didn't tell us which slot to use. Let the driver
+         * choose. This is the normal case. */
+        psa_drv_se_allocate_key_t p_allocate =
+            driver->methods->key_management->p_allocate;
+        if( p_allocate == NULL )
+            return( PSA_ERROR_NOT_SUPPORTED );
+        status = p_allocate( &driver->u.context,
+                             driver->u.internal.persistent_data,
+                             attributes, method,
+                             slot_number );
+    }
+    return( status );
+}
+
+psa_status_t psa_destroy_se_key( psa_se_drv_table_entry_t *driver,
+                                 psa_key_slot_number_t slot_number )
+{
+    psa_status_t status;
+    psa_status_t storage_status;
+    /* Normally a missing method would mean that the action is not
+     * supported. But psa_destroy_key() is not supposed to return
+     * PSA_ERROR_NOT_SUPPORTED: if you can create a key, you should
+     * be able to destroy it. The only use case for a driver that
+     * does not have a way to destroy keys at all is if the keys are
+     * locked in a read-only state: we can use the keys but not
+     * destroy them. Hence, if the driver doesn't support destroying
+     * keys, it's really a lack of permission. */
+    if( driver->methods->key_management == NULL ||
+        driver->methods->key_management->p_destroy == NULL )
+        return( PSA_ERROR_NOT_PERMITTED );
+    status = driver->methods->key_management->p_destroy(
+        &driver->u.context,
+        driver->u.internal.persistent_data,
+        slot_number );
+    storage_status = psa_save_se_persistent_data( driver );
+    return( status == PSA_SUCCESS ? storage_status : status );
+}
+
+psa_status_t psa_init_all_se_drivers( void )
+{
+    size_t i;
+    for( i = 0; i < PSA_MAX_SE_DRIVERS; i++ )
+    {
+        psa_se_drv_table_entry_t *driver = &driver_table[i];
+        if( driver->location == 0 )
+            continue; /* skipping unused entry */
+        const psa_drv_se_t *methods = psa_get_se_driver_methods( driver );
+        if( methods->p_init != NULL )
+        {
+            psa_status_t status = methods->p_init(
+                &driver->u.context,
+                driver->u.internal.persistent_data,
+                driver->location );
+            if( status != PSA_SUCCESS )
+                return( status );
+            status = psa_save_se_persistent_data( driver );
+            if( status != PSA_SUCCESS )
+                return( status );
+        }
+    }
+    return( PSA_SUCCESS );
+}
+
+
+
+/****************************************************************/
+/* Driver registration */
+/****************************************************************/
+
+psa_status_t psa_register_se_driver(
+    psa_key_location_t location,
+    const psa_drv_se_t *methods)
+{
+    size_t i;
+    psa_status_t status;
+
+    if( methods->hal_version != PSA_DRV_SE_HAL_VERSION )
+        return( PSA_ERROR_NOT_SUPPORTED );
+    /* Driver table entries are 0-initialized. 0 is not a valid driver
+     * location because it means a transparent key. */
+#if defined(static_assert)
+    static_assert( PSA_KEY_LOCATION_LOCAL_STORAGE == 0,
+                   "Secure element support requires 0 to mean a local key" );
+#endif
+    if( location == PSA_KEY_LOCATION_LOCAL_STORAGE )
+        return( PSA_ERROR_INVALID_ARGUMENT );
+    if( location > PSA_MAX_SE_LOCATION )
+        return( PSA_ERROR_NOT_SUPPORTED );
+
+    for( i = 0; i < PSA_MAX_SE_DRIVERS; i++ )
+    {
+        if( driver_table[i].location == 0 )
+            break;
+        /* Check that location isn't already in use up to the first free
+         * entry. Since entries are created in order and never deleted,
+         * there can't be a used entry after the first free entry. */
+        if( driver_table[i].location == location )
+            return( PSA_ERROR_ALREADY_EXISTS );
+    }
+    if( i == PSA_MAX_SE_DRIVERS )
+        return( PSA_ERROR_INSUFFICIENT_MEMORY );
+
+    driver_table[i].location = location;
+    driver_table[i].methods = methods;
+    driver_table[i].u.internal.persistent_data_size =
+        methods->persistent_data_size;
+
+    if( methods->persistent_data_size != 0 )
+    {
+        driver_table[i].u.internal.persistent_data =
+            mbedtls_calloc( 1, methods->persistent_data_size );
+        if( driver_table[i].u.internal.persistent_data == NULL )
+        {
+            status = PSA_ERROR_INSUFFICIENT_MEMORY;
+            goto error;
+        }
+        /* Load the driver's persistent data. On first use, the persistent
+         * data does not exist in storage, and is initialized to
+         * all-bits-zero by the calloc call just above. */
+        status = psa_load_se_persistent_data( &driver_table[i] );
+        if( status != PSA_SUCCESS && status != PSA_ERROR_DOES_NOT_EXIST )
+            goto error;
+    }
+
+    return( PSA_SUCCESS );
+
+error:
+    memset( &driver_table[i], 0, sizeof( driver_table[i] ) );
+    return( status );
+}
+
+void psa_unregister_all_se_drivers( void )
+{
+    size_t i;
+    for( i = 0; i < PSA_MAX_SE_DRIVERS; i++ )
+    {
+        if( driver_table[i].u.internal.persistent_data != NULL )
+            mbedtls_free( driver_table[i].u.internal.persistent_data );
+    }
+    memset( driver_table, 0, sizeof( driver_table ) );
+}
+
+
+
+/****************************************************************/
+/* The end */
+/****************************************************************/
+
+#endif /* MBEDTLS_PSA_CRYPTO_SE_C */