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Update buffering when adapting to ClientHello message_seq

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Signed-off-by: Ronald Cron <ronald.cron@arm.com>
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Ronald Cron
2026-03-18 12:15:52 +01:00
parent 16c5dd99b3
commit 912ef74195
1 changed files with 13 additions and 9 deletions
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library/ssl_msg.c
+4
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@@ -2986,6 +2986,9 @@ int mbedtls_ssl_prepare_handshake_record(mbedtls_ssl_context *ssl)
* expected `message_seq` for the incoming and outgoing
* handshake messages.
*/
if ((ssl->handshake->in_msg_seq == 0) && (recv_msg_seq > 0)) {
MBEDTLS_SSL_DEBUG_MSG(1, ("shift slots by %u", recv_msg_seq));
ssl_buffering_shift_slots(ssl, recv_msg_seq);
ssl->handshake->in_msg_seq = recv_msg_seq;
ssl->handshake->out_msg_seq = recv_msg_seq;
@@ -2997,6 +3000,7 @@ int mbedtls_ssl_prepare_handshake_record(mbedtls_ssl_context *ssl)
memcpy(&ssl->cur_out_ctr[2], ssl->in_ctr + 2,
sizeof(ssl->cur_out_ctr) - 2);
}
} else if (mbedtls_ssl_is_handshake_over(ssl) == 1) {
/* In case of a post-handshake ClientHello that initiates a
* renegotiation check that the handshake message sequence