Removed old mbedtls, replacing with submodule.

1 files changed, 0 insertions, 405 deletions

diff --git a/lib/mbedtls-2.27.0/library/ssl_ticket.c b/lib/mbedtls-2.27.0/library/ssl_ticket.c
deleted file mode 100644
index 626d137..0000000
--- a/lib/mbedtls-2.27.0/library/ssl_ticket.c
+++ /dev/null
@@ -1,405 +0,0 @@
-/*
- *  TLS server tickets callbacks implementation
- *
- *  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_SSL_TICKET_C)
-
-#if defined(MBEDTLS_PLATFORM_C)
-#include "mbedtls/platform.h"
-#else
-#include <stdlib.h>
-#define mbedtls_calloc    calloc
-#define mbedtls_free      free
-#endif
-
-#include "mbedtls/ssl_internal.h"
-#include "mbedtls/ssl_ticket.h"
-#include "mbedtls/error.h"
-#include "mbedtls/platform_util.h"
-
-#include <string.h>
-
-/*
- * Initialze context
- */
-void mbedtls_ssl_ticket_init( mbedtls_ssl_ticket_context *ctx )
-{
-    memset( ctx, 0, sizeof( mbedtls_ssl_ticket_context ) );
-
-#if defined(MBEDTLS_THREADING_C)
-    mbedtls_mutex_init( &ctx->mutex );
-#endif
-}
-
-#define MAX_KEY_BYTES 32    /* 256 bits */
-
-#define TICKET_KEY_NAME_BYTES    4
-#define TICKET_IV_BYTES         12
-#define TICKET_CRYPT_LEN_BYTES   2
-#define TICKET_AUTH_TAG_BYTES   16
-
-#define TICKET_MIN_LEN ( TICKET_KEY_NAME_BYTES  +        \
-                         TICKET_IV_BYTES        +        \
-                         TICKET_CRYPT_LEN_BYTES +        \
-                         TICKET_AUTH_TAG_BYTES )
-#define TICKET_ADD_DATA_LEN ( TICKET_KEY_NAME_BYTES  +        \
-                              TICKET_IV_BYTES        +        \
-                              TICKET_CRYPT_LEN_BYTES )
-
-/*
- * Generate/update a key
- */
-static int ssl_ticket_gen_key( mbedtls_ssl_ticket_context *ctx,
-                               unsigned char index )
-{
-    int ret = MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED;
-    unsigned char buf[MAX_KEY_BYTES];
-    mbedtls_ssl_ticket_key *key = ctx->keys + index;
-
-#if defined(MBEDTLS_HAVE_TIME)
-    key->generation_time = (uint32_t) mbedtls_time( NULL );
-#endif
-
-    if( ( ret = ctx->f_rng( ctx->p_rng, key->name, sizeof( key->name ) ) ) != 0 )
-        return( ret );
-
-    if( ( ret = ctx->f_rng( ctx->p_rng, buf, sizeof( buf ) ) ) != 0 )
-        return( ret );
-
-    /* With GCM and CCM, same context can encrypt & decrypt */
-    ret = mbedtls_cipher_setkey( &key->ctx, buf,
-                                 mbedtls_cipher_get_key_bitlen( &key->ctx ),
-                                 MBEDTLS_ENCRYPT );
-
-    mbedtls_platform_zeroize( buf, sizeof( buf ) );
-
-    return( ret );
-}
-
-/*
- * Rotate/generate keys if necessary
- */
-static int ssl_ticket_update_keys( mbedtls_ssl_ticket_context *ctx )
-{
-#if !defined(MBEDTLS_HAVE_TIME)
-    ((void) ctx);
-#else
-    if( ctx->ticket_lifetime != 0 )
-    {
-        uint32_t current_time = (uint32_t) mbedtls_time( NULL );
-        uint32_t key_time = ctx->keys[ctx->active].generation_time;
-
-        if( current_time >= key_time &&
-            current_time - key_time < ctx->ticket_lifetime )
-        {
-            return( 0 );
-        }
-
-        ctx->active = 1 - ctx->active;
-
-        return( ssl_ticket_gen_key( ctx, ctx->active ) );
-    }
-    else
-#endif /* MBEDTLS_HAVE_TIME */
-        return( 0 );
-}
-
-/*
- * Setup context for actual use
- */
-int mbedtls_ssl_ticket_setup( mbedtls_ssl_ticket_context *ctx,
-    int (*f_rng)(void *, unsigned char *, size_t), void *p_rng,
-    mbedtls_cipher_type_t cipher,
-    uint32_t lifetime )
-{
-    int ret = MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED;
-    const mbedtls_cipher_info_t *cipher_info;
-
-    ctx->f_rng = f_rng;
-    ctx->p_rng = p_rng;
-
-    ctx->ticket_lifetime = lifetime;
-
-    cipher_info = mbedtls_cipher_info_from_type( cipher);
-    if( cipher_info == NULL )
-        return( MBEDTLS_ERR_SSL_BAD_INPUT_DATA );
-
-    if( cipher_info->mode != MBEDTLS_MODE_GCM &&
-        cipher_info->mode != MBEDTLS_MODE_CCM )
-    {
-        return( MBEDTLS_ERR_SSL_BAD_INPUT_DATA );
-    }
-
-    if( cipher_info->key_bitlen > 8 * MAX_KEY_BYTES )
-        return( MBEDTLS_ERR_SSL_BAD_INPUT_DATA );
-
-#if defined(MBEDTLS_USE_PSA_CRYPTO)
-    ret = mbedtls_cipher_setup_psa( &ctx->keys[0].ctx,
-                                    cipher_info, TICKET_AUTH_TAG_BYTES );
-    if( ret != 0 && ret != MBEDTLS_ERR_CIPHER_FEATURE_UNAVAILABLE )
-        return( ret );
-    /* We don't yet expect to support all ciphers through PSA,
-     * so allow fallback to ordinary mbedtls_cipher_setup(). */
-    if( ret == MBEDTLS_ERR_CIPHER_FEATURE_UNAVAILABLE )
-#endif /* MBEDTLS_USE_PSA_CRYPTO */
-    if( ( ret = mbedtls_cipher_setup( &ctx->keys[0].ctx, cipher_info ) ) != 0 )
-        return( ret );
-
-#if defined(MBEDTLS_USE_PSA_CRYPTO)
-    ret = mbedtls_cipher_setup_psa( &ctx->keys[1].ctx,
-                                    cipher_info, TICKET_AUTH_TAG_BYTES );
-    if( ret != 0 && ret != MBEDTLS_ERR_CIPHER_FEATURE_UNAVAILABLE )
-        return( ret );
-    if( ret == MBEDTLS_ERR_CIPHER_FEATURE_UNAVAILABLE )
-#endif /* MBEDTLS_USE_PSA_CRYPTO */
-    if( ( ret = mbedtls_cipher_setup( &ctx->keys[1].ctx, cipher_info ) ) != 0 )
-        return( ret );
-
-    if( ( ret = ssl_ticket_gen_key( ctx, 0 ) ) != 0 ||
-        ( ret = ssl_ticket_gen_key( ctx, 1 ) ) != 0 )
-    {
-        return( ret );
-    }
-
-    return( 0 );
-}
-
-/*
- * Create session ticket, with the following structure:
- *
- *    struct {
- *        opaque key_name[4];
- *        opaque iv[12];
- *        opaque encrypted_state<0..2^16-1>;
- *        opaque tag[16];
- *    } ticket;
- *
- * The key_name, iv, and length of encrypted_state are the additional
- * authenticated data.
- */
-
-int mbedtls_ssl_ticket_write( void *p_ticket,
-                              const mbedtls_ssl_session *session,
-                              unsigned char *start,
-                              const unsigned char *end,
-                              size_t *tlen,
-                              uint32_t *ticket_lifetime )
-{
-    int ret = MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED;
-    mbedtls_ssl_ticket_context *ctx = p_ticket;
-    mbedtls_ssl_ticket_key *key;
-    unsigned char *key_name = start;
-    unsigned char *iv = start + TICKET_KEY_NAME_BYTES;
-    unsigned char *state_len_bytes = iv + TICKET_IV_BYTES;
-    unsigned char *state = state_len_bytes + TICKET_CRYPT_LEN_BYTES;
-    size_t clear_len, ciph_len;
-
-    *tlen = 0;
-
-    if( ctx == NULL || ctx->f_rng == NULL )
-        return( MBEDTLS_ERR_SSL_BAD_INPUT_DATA );
-
-    /* We need at least 4 bytes for key_name, 12 for IV, 2 for len 16 for tag,
-     * in addition to session itself, that will be checked when writing it. */
-    MBEDTLS_SSL_CHK_BUF_PTR( start, end, TICKET_MIN_LEN );
-
-#if defined(MBEDTLS_THREADING_C)
-    if( ( ret = mbedtls_mutex_lock( &ctx->mutex ) ) != 0 )
-        return( ret );
-#endif
-
-    if( ( ret = ssl_ticket_update_keys( ctx ) ) != 0 )
-        goto cleanup;
-
-    key = &ctx->keys[ctx->active];
-
-    *ticket_lifetime = ctx->ticket_lifetime;
-
-    memcpy( key_name, key->name, TICKET_KEY_NAME_BYTES );
-
-    if( ( ret = ctx->f_rng( ctx->p_rng, iv, TICKET_IV_BYTES ) ) != 0 )
-        goto cleanup;
-
-    /* Dump session state */
-    if( ( ret = mbedtls_ssl_session_save( session,
-                                          state, end - state,
-                                          &clear_len ) ) != 0 ||
-        (unsigned long) clear_len > 65535 )
-    {
-         goto cleanup;
-    }
-    state_len_bytes[0] = ( clear_len >> 8 ) & 0xff;
-    state_len_bytes[1] = ( clear_len      ) & 0xff;
-
-    /* Encrypt and authenticate */
-    if( ( ret = mbedtls_cipher_auth_encrypt_ext( &key->ctx,
-                    iv, TICKET_IV_BYTES,
-                    /* Additional data: key name, IV and length */
-                    key_name, TICKET_ADD_DATA_LEN,
-                    state, clear_len,
-                    state, end - state, &ciph_len,
-                    TICKET_AUTH_TAG_BYTES ) ) != 0 )
-    {
-        goto cleanup;
-    }
-    if( ciph_len != clear_len + TICKET_AUTH_TAG_BYTES )
-    {
-        ret = MBEDTLS_ERR_SSL_INTERNAL_ERROR;
-        goto cleanup;
-    }
-
-    *tlen = TICKET_MIN_LEN + ciph_len - TICKET_AUTH_TAG_BYTES;
-
-cleanup:
-#if defined(MBEDTLS_THREADING_C)
-    if( mbedtls_mutex_unlock( &ctx->mutex ) != 0 )
-        return( MBEDTLS_ERR_THREADING_MUTEX_ERROR );
-#endif
-
-    return( ret );
-}
-
-/*
- * Select key based on name
- */
-static mbedtls_ssl_ticket_key *ssl_ticket_select_key(
-        mbedtls_ssl_ticket_context *ctx,
-        const unsigned char name[4] )
-{
-    unsigned char i;
-
-    for( i = 0; i < sizeof( ctx->keys ) / sizeof( *ctx->keys ); i++ )
-        if( memcmp( name, ctx->keys[i].name, 4 ) == 0 )
-            return( &ctx->keys[i] );
-
-    return( NULL );
-}
-
-/*
- * Load session ticket (see mbedtls_ssl_ticket_write for structure)
- */
-int mbedtls_ssl_ticket_parse( void *p_ticket,
-                              mbedtls_ssl_session *session,
-                              unsigned char *buf,
-                              size_t len )
-{
-    int ret = MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED;
-    mbedtls_ssl_ticket_context *ctx = p_ticket;
-    mbedtls_ssl_ticket_key *key;
-    unsigned char *key_name = buf;
-    unsigned char *iv = buf + TICKET_KEY_NAME_BYTES;
-    unsigned char *enc_len_p = iv + TICKET_IV_BYTES;
-    unsigned char *ticket = enc_len_p + TICKET_CRYPT_LEN_BYTES;
-    size_t enc_len, clear_len;
-
-    if( ctx == NULL || ctx->f_rng == NULL )
-        return( MBEDTLS_ERR_SSL_BAD_INPUT_DATA );
-
-    if( len < TICKET_MIN_LEN )
-        return( MBEDTLS_ERR_SSL_BAD_INPUT_DATA );
-
-#if defined(MBEDTLS_THREADING_C)
-    if( ( ret = mbedtls_mutex_lock( &ctx->mutex ) ) != 0 )
-        return( ret );
-#endif
-
-    if( ( ret = ssl_ticket_update_keys( ctx ) ) != 0 )
-        goto cleanup;
-
-    enc_len = ( enc_len_p[0] << 8 ) | enc_len_p[1];
-
-    if( len != TICKET_MIN_LEN + enc_len )
-    {
-        ret = MBEDTLS_ERR_SSL_BAD_INPUT_DATA;
-        goto cleanup;
-    }
-
-    /* Select key */
-    if( ( key = ssl_ticket_select_key( ctx, key_name ) ) == NULL )
-    {
-        /* We can't know for sure but this is a likely option unless we're
-         * under attack - this is only informative anyway */
-        ret = MBEDTLS_ERR_SSL_SESSION_TICKET_EXPIRED;
-        goto cleanup;
-    }
-
-    /* Decrypt and authenticate */
-    if( ( ret = mbedtls_cipher_auth_decrypt_ext( &key->ctx,
-                    iv, TICKET_IV_BYTES,
-                    /* Additional data: key name, IV and length */
-                    key_name, TICKET_ADD_DATA_LEN,
-                    ticket, enc_len + TICKET_AUTH_TAG_BYTES,
-                    ticket, enc_len, &clear_len,
-                    TICKET_AUTH_TAG_BYTES ) ) != 0 )
-    {
-        if( ret == MBEDTLS_ERR_CIPHER_AUTH_FAILED )
-            ret = MBEDTLS_ERR_SSL_INVALID_MAC;
-
-        goto cleanup;
-    }
-    if( clear_len != enc_len )
-    {
-        ret = MBEDTLS_ERR_SSL_INTERNAL_ERROR;
-        goto cleanup;
-    }
-
-    /* Actually load session */
-    if( ( ret = mbedtls_ssl_session_load( session, ticket, clear_len ) ) != 0 )
-        goto cleanup;
-
-#if defined(MBEDTLS_HAVE_TIME)
-    {
-        /* Check for expiration */
-        mbedtls_time_t current_time = mbedtls_time( NULL );
-
-        if( current_time < session->start ||
-            (uint32_t)( current_time - session->start ) > ctx->ticket_lifetime )
-        {
-            ret = MBEDTLS_ERR_SSL_SESSION_TICKET_EXPIRED;
-            goto cleanup;
-        }
-    }
-#endif
-
-cleanup:
-#if defined(MBEDTLS_THREADING_C)
-    if( mbedtls_mutex_unlock( &ctx->mutex ) != 0 )
-        return( MBEDTLS_ERR_THREADING_MUTEX_ERROR );
-#endif
-
-    return( ret );
-}
-
-/*
- * Free context
- */
-void mbedtls_ssl_ticket_free( mbedtls_ssl_ticket_context *ctx )
-{
-    mbedtls_cipher_free( &ctx->keys[0].ctx );
-    mbedtls_cipher_free( &ctx->keys[1].ctx );
-
-#if defined(MBEDTLS_THREADING_C)
-    mbedtls_mutex_free( &ctx->mutex );
-#endif
-
-    mbedtls_platform_zeroize( ctx, sizeof( mbedtls_ssl_ticket_context ) );
-}
-
-#endif /* MBEDTLS_SSL_TICKET_C */