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Change record size limit writing function

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Signed-off-by: Waleed Elmelegy <waleed.elmelegy@arm.com>
This commit is contained in:
Waleed Elmelegy 2024-01-04 18:02:35 +00:00
parent 598ea09dd5
commit 148dfb6457
3 changed files with 5 additions and 10 deletions
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1
library/ssl_misc.h
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@ -2713,7 +2713,6 @@ int mbedtls_ssl_tls13_parse_record_size_limit_ext(mbedtls_ssl_context *ssl,
MBEDTLS_CHECK_RETURN_CRITICAL
int mbedtls_ssl_tls13_write_record_size_limit_ext(mbedtls_ssl_context *ssl,
uint16_t record_size_limit,
unsigned char *buf,
const unsigned char *end,
size_t *out_len);

2
library/ssl_tls13_client.c
View file

@ -1162,7 +1162,7 @@ int mbedtls_ssl_tls13_write_client_hello_exts(mbedtls_ssl_context *ssl,
#if defined(MBEDTLS_SSL_RECORD_SIZE_LIMIT)
ret = mbedtls_ssl_tls13_write_record_size_limit_ext(
ssl, MBEDTLS_SSL_IN_CONTENT_LEN, p, end, &ext_len);
ssl, p, end, &ext_len);
if (ret != 0) {
return ret;
}

12
library/ssl_tls13_generic.c
View file

@ -1765,29 +1765,25 @@ int mbedtls_ssl_tls13_parse_record_size_limit_ext(mbedtls_ssl_context *ssl,
MBEDTLS_CHECK_RETURN_CRITICAL
int mbedtls_ssl_tls13_write_record_size_limit_ext(mbedtls_ssl_context *ssl,
uint16_t record_size_limit,
unsigned char *buf,
const unsigned char *end,
size_t *out_len)
{
int ret = MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED;
unsigned char *p = buf;
*out_len = 0;
ret = mbedtls_ssl_is_record_size_limit_valid(ssl, record_size_limit);
if (ret != 0) {
return ret;
}
MBEDTLS_STATIC_ASSERT(MBEDTLS_SSL_IN_CONTENT_LEN >= MBEDTLS_SSL_RECORD_SIZE_LIMIT_MIN,
"MBEDTLS_SSL_IN_CONTENT_LEN is less than the minimum record size limit");
MBEDTLS_SSL_CHK_BUF_PTR(p, end, 6);
MBEDTLS_PUT_UINT16_BE(MBEDTLS_TLS_EXT_RECORD_SIZE_LIMIT, p, 0);
MBEDTLS_PUT_UINT16_BE(MBEDTLS_SSL_RECORD_SIZE_LIMIT_EXTENSION_DATA_LENGTH, p, 2);
MBEDTLS_PUT_UINT16_BE(record_size_limit, p, 4);
MBEDTLS_PUT_UINT16_BE(MBEDTLS_SSL_IN_CONTENT_LEN, p, 4);
*out_len = 6;
MBEDTLS_SSL_DEBUG_MSG(2, ("Sent RecordSizeLimit: %u Bytes", record_size_limit));
MBEDTLS_SSL_DEBUG_MSG(2, ("Sent RecordSizeLimit: %u Bytes", MBEDTLS_SSL_IN_CONTENT_LEN));
mbedtls_ssl_tls13_set_hs_sent_ext_mask(ssl, MBEDTLS_TLS_EXT_RECORD_SIZE_LIMIT);