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Tweak handshake fragment log message

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In preparation for reworking mbedtls_ssl_prepare_handshake_record(),
tweak the "handshake fragment:" log message.

This changes what information is displayed when a record contains data
beyond the expected end of the handshake message. This case is currently
untested and its handling will change in a subsequent commit.

Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>
This commit is contained in:
Gilles Peskine 2025-03-03 16:46:10 +01:00
parent 9bdc8aa80b
commit 07027722cb
1 changed files with 7 additions and 6 deletions
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13
library/ssl_msg.c
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@ -3042,13 +3042,14 @@ int mbedtls_ssl_prepare_handshake_record(mbedtls_ssl_context *ssl)
int ret;
const size_t hs_remain = ssl->in_hslen - ssl->in_hsfraglen;
MBEDTLS_SSL_DEBUG_MSG(3,
("handshake fragment: %" MBEDTLS_PRINTF_SIZET " .. %"
MBEDTLS_PRINTF_SIZET " of %"
MBEDTLS_PRINTF_SIZET " msglen %" MBEDTLS_PRINTF_SIZET,
("handshake fragment: %" MBEDTLS_PRINTF_SIZET
", %" MBEDTLS_PRINTF_SIZET
"..%" MBEDTLS_PRINTF_SIZET
" of %" MBEDTLS_PRINTF_SIZET,
ssl->in_msglen,
ssl->in_hsfraglen,
ssl->in_hsfraglen +
(hs_remain <= ssl->in_msglen ? hs_remain : ssl->in_msglen),
ssl->in_hslen, ssl->in_msglen));
ssl->in_hsfraglen + ssl->in_msglen,
ssl->in_hslen));
if (ssl->in_msglen < hs_remain) {
ssl->in_hsfraglen += ssl->in_msglen;
ssl->in_hdr = ssl->in_msg + ssl->in_msglen;