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Merge remote-tracking branch 'upstream-public/pr/1595' into mbedtls-2.7-proposed

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This commit is contained in:
Jaeden Amero 2018-04-25 14:25:03 +01:00
parent 4a9236efce 149f3a4d73
commit 6a9af8184c
2 changed files with 10 additions and 5 deletions
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2
ChangeLog
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@ -30,6 +30,8 @@ Bugfix
the mbedtls_cipher_update() documentation. Contributed by Andy Leiserson.
* Fix overriding and ignoring return values when parsing and writing to
a file in pk_sign program. Found by kevlut in #1142.
* Fix invalid buffer sizes passed to zlib during record compression and
decompression.
Changes
* Support cmake build where Mbed TLS is a subproject. Fix

13
library/ssl_tls.c
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@ -2108,6 +2108,7 @@ static int ssl_compress_buf( mbedtls_ssl_context *ssl )
{
int ret;
unsigned char *msg_post = ssl->out_msg;
ptrdiff_t bytes_written = ssl->out_msg - ssl->out_buf;
size_t len_pre = ssl->out_msglen;
unsigned char *msg_pre = ssl->compress_buf;
@ -2127,7 +2128,7 @@ static int ssl_compress_buf( mbedtls_ssl_context *ssl )
ssl->transform_out->ctx_deflate.next_in = msg_pre;
ssl->transform_out->ctx_deflate.avail_in = len_pre;
ssl->transform_out->ctx_deflate.next_out = msg_post;
ssl->transform_out->ctx_deflate.avail_out = MBEDTLS_SSL_BUFFER_LEN;
ssl->transform_out->ctx_deflate.avail_out = MBEDTLS_SSL_BUFFER_LEN - bytes_written;
ret = deflate( &ssl->transform_out->ctx_deflate, Z_SYNC_FLUSH );
if( ret != Z_OK )
@ -2137,7 +2138,7 @@ static int ssl_compress_buf( mbedtls_ssl_context *ssl )
}
ssl->out_msglen = MBEDTLS_SSL_BUFFER_LEN -
ssl->transform_out->ctx_deflate.avail_out;
ssl->transform_out->ctx_deflate.avail_out - bytes_written;
MBEDTLS_SSL_DEBUG_MSG( 3, ( "after compression: msglen = %d, ",
ssl->out_msglen ) );
@ -2154,6 +2155,7 @@ static int ssl_decompress_buf( mbedtls_ssl_context *ssl )
{
int ret;
unsigned char *msg_post = ssl->in_msg;
ptrdiff_t header_bytes = ssl->in_msg - ssl->in_buf;
size_t len_pre = ssl->in_msglen;
unsigned char *msg_pre = ssl->compress_buf;
@ -2173,7 +2175,8 @@ static int ssl_decompress_buf( mbedtls_ssl_context *ssl )
ssl->transform_in->ctx_inflate.next_in = msg_pre;
ssl->transform_in->ctx_inflate.avail_in = len_pre;
ssl->transform_in->ctx_inflate.next_out = msg_post;
ssl->transform_in->ctx_inflate.avail_out = MBEDTLS_SSL_MAX_CONTENT_LEN;
ssl->transform_in->ctx_inflate.avail_out = MBEDTLS_SSL_BUFFER_LEN -
header_bytes;
ret = inflate( &ssl->transform_in->ctx_inflate, Z_SYNC_FLUSH );
if( ret != Z_OK )
@ -2182,8 +2185,8 @@ static int ssl_decompress_buf( mbedtls_ssl_context *ssl )
return( MBEDTLS_ERR_SSL_COMPRESSION_FAILED );
}
ssl->in_msglen = MBEDTLS_SSL_MAX_CONTENT_LEN -
ssl->transform_in->ctx_inflate.avail_out;
ssl->in_msglen = MBEDTLS_SSL_BUFFER_LEN -
ssl->transform_in->ctx_inflate.avail_out - header_bytes;
MBEDTLS_SSL_DEBUG_MSG( 3, ( "after decompression: msglen = %d, ",
ssl->in_msglen ) );