commit f384495972315c94471d97fc4c6256181d9936e8
author Andrzej Kurek <andrzej.kurek@arm.com> Fri Oct 16 23:03:01 2020 +0200
committer Andrzej Kurek <andrzej.kurek@arm.com> Sat Oct 17 00:55:17 2020 +0200
tree a3ab55a02599087a94ad3c281589faa5547a4d4f
parent dd5ad6924e3c9055e05114f71fd4b82bc8162063

Sideport the variable IO buffer size feature to baremetal

Signed-off-by: Andrzej Kurek <andrzej.kurek@arm.com>

include/mbedtls/ssl_internal.h

diff --git a/include/mbedtls/ssl_internal.h b/include/mbedtls/ssl_internal.h
index a1c5d1d..17c5763 100644
--- a/include/mbedtls/ssl_internal.h
+++ b/include/mbedtls/ssl_internal.h
@@ -260,7 +260,7 @@
    implicit sequence number. */
 #define MBEDTLS_SSL_HEADER_LEN 13
 
-#if defined(MBEDTLS_SSL_DTLS_CONNECTION_ID)
+#if !defined(MBEDTLS_SSL_DTLS_CONNECTION_ID)
 #define MBEDTLS_SSL_IN_BUFFER_LEN  \
     ( ( MBEDTLS_SSL_HEADER_LEN ) + ( MBEDTLS_SSL_IN_PAYLOAD_LEN ) )
 #else
@@ -269,7 +269,7 @@
       + ( MBEDTLS_SSL_CID_IN_LEN_MAX ) )
 #endif
 
-#if defined(MBEDTLS_SSL_DTLS_CONNECTION_ID)
+#if !defined(MBEDTLS_SSL_DTLS_CONNECTION_ID)
 #define MBEDTLS_SSL_OUT_BUFFER_LEN  \
     ( ( MBEDTLS_SSL_HEADER_LEN ) + ( MBEDTLS_SSL_OUT_PAYLOAD_LEN ) )
 #else
@@ -278,6 +278,32 @@
       + ( MBEDTLS_SSL_CID_OUT_LEN_MAX ) )
 #endif
 
+#if defined(MBEDTLS_SSL_VARIABLE_BUFFER_LENGTH)
+static inline uint32_t mbedtls_ssl_get_output_buflen( const mbedtls_ssl_context *ctx )
+{
+#if defined (MBEDTLS_SSL_DTLS_CONNECTION_ID)
+    return (uint32_t) mbedtls_ssl_get_output_max_frag_len( ctx )
+               + MBEDTLS_SSL_HEADER_LEN + MBEDTLS_SSL_PAYLOAD_OVERHEAD
+               + MBEDTLS_SSL_CID_OUT_LEN_MAX;
+#else
+    return (uint32_t) mbedtls_ssl_get_output_max_frag_len( ctx )
+               + MBEDTLS_SSL_HEADER_LEN + MBEDTLS_SSL_PAYLOAD_OVERHEAD;
+#endif
+}
+
+static inline uint32_t mbedtls_ssl_get_input_buflen( const mbedtls_ssl_context *ctx )
+{
+#if defined (MBEDTLS_SSL_DTLS_CONNECTION_ID)
+    return (uint32_t) mbedtls_ssl_get_input_max_frag_len( ctx )
+               + MBEDTLS_SSL_HEADER_LEN + MBEDTLS_SSL_PAYLOAD_OVERHEAD
+               + MBEDTLS_SSL_CID_IN_LEN_MAX;
+#else
+    return (uint32_t) mbedtls_ssl_get_input_max_frag_len( ctx )
+               + MBEDTLS_SSL_HEADER_LEN + MBEDTLS_SSL_PAYLOAD_OVERHEAD;
+#endif
+}
+#endif
+
 #ifdef MBEDTLS_ZLIB_SUPPORT
 /* Compression buffer holds both IN and OUT buffers, so should be size of the larger */
 #define MBEDTLS_SSL_COMPRESS_BUFFER_LEN (                               \