From 0563240a2da8bf2f8d6e2718c703bdf8ed278178 Mon Sep 17 00:00:00 2001
From: hemanth-silabs <50145824+hemanth-silabs@users.noreply.github.com>
Date: Fri, 25 Feb 2022 03:39:56 +0000
Subject: [PATCH] [crypto] changes to dtls code to match mbedtls 3.1.0 (#7425)

Some of the private fields are changed to public again in MbedTLS 3.1,
update dtls to match these changes.
---
 src/core/meshcop/dtls.cpp | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/src/core/meshcop/dtls.cpp b/src/core/meshcop/dtls.cpp
index 700815237..aa2834500 100644
--- a/src/core/meshcop/dtls.cpp
+++ b/src/core/meshcop/dtls.cpp
@@ -535,12 +535,19 @@ Error Dtls::GetPeerCertificateBase64(unsigned char *aPeerCert, size_t *aCertLeng
 
     VerifyOrExit(mState == kStateConnected, error = kErrorInvalidState);
 
+#if (MBEDTLS_VERSION_NUMBER >= 0x03010000)
+    VerifyOrExit(mbedtls_base64_encode(aPeerCert, aCertBufferSize, aCertLength,
+                                       mSsl.MBEDTLS_PRIVATE(session)->MBEDTLS_PRIVATE(peer_cert)->raw.p,
+                                       mSsl.MBEDTLS_PRIVATE(session)->MBEDTLS_PRIVATE(peer_cert)->raw.len) == 0,
+                 error = kErrorNoBufs);
+#else
     VerifyOrExit(
         mbedtls_base64_encode(
             aPeerCert, aCertBufferSize, aCertLength,
             mSsl.MBEDTLS_PRIVATE(session)->MBEDTLS_PRIVATE(peer_cert)->MBEDTLS_PRIVATE(raw).MBEDTLS_PRIVATE(p),
             mSsl.MBEDTLS_PRIVATE(session)->MBEDTLS_PRIVATE(peer_cert)->MBEDTLS_PRIVATE(raw).MBEDTLS_PRIVATE(len)) == 0,
         error = kErrorNoBufs);
+#endif
 
 exit:
     return error;