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Slightly abstract ktls_start() to reduce OS-specific #ifdefs.

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Instead of passing the length in from the caller, compute the length
to pass to setsockopt() inside of ktls_start().  This isolates the
OS-specific behavior to ktls.h and removes it from the socket BIO
implementations.

Reviewed-by: Matt Caswell <matt@openssl.org>
Reviewed-by: Ben Kaduk <kaduk@mit.edu>
(Merged from https://github.com/openssl/openssl/pull/12782)
This commit is contained in:
John Baldwin 2020-08-31 17:13:17 -07:00 committed by Benjamin Kaduk
parent 74eee1bdaa
commit 7f0f88240e
3 changed files with 9 additions and 22 deletions
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8
crypto/bio/bss_conn.c
View File

@ -377,7 +377,6 @@ static long conn_ctrl(BIO *b, int cmd, long num, void *ptr)
long ret = 1;
BIO_CONNECT *data;
# ifndef OPENSSL_NO_KTLS
size_t crypto_info_len;
ktls_crypto_info_t *crypto_info;
# endif
@ -542,12 +541,7 @@ static long conn_ctrl(BIO *b, int cmd, long num, void *ptr)
# ifndef OPENSSL_NO_KTLS
case BIO_CTRL_SET_KTLS:
crypto_info = (ktls_crypto_info_t *)ptr;
# ifdef __FreeBSD__
crypto_info_len = sizeof(*crypto_info);
# else
crypto_info_len = crypto_info->tls_crypto_info_len;
# endif
ret = ktls_start(b->num, crypto_info, crypto_info_len, num);
ret = ktls_start(b->num, crypto_info, num);
if (ret)
BIO_set_ktls_flag(b, num);
break;

8
crypto/bio/bss_sock.c
View File

@ -154,7 +154,6 @@ static long sock_ctrl(BIO *b, int cmd, long num, void *ptr)
long ret = 1;
int *ip;
# ifndef OPENSSL_NO_KTLS
size_t crypto_info_len;
ktls_crypto_info_t *crypto_info;
# endif
@ -187,12 +186,7 @@ static long sock_ctrl(BIO *b, int cmd, long num, void *ptr)
# ifndef OPENSSL_NO_KTLS
case BIO_CTRL_SET_KTLS:
crypto_info = (ktls_crypto_info_t *)ptr;
# ifdef __FreeBSD__
crypto_info_len = sizeof(*crypto_info);
# else
crypto_info_len = crypto_info->tls_crypto_info_len;
# endif
ret = ktls_start(b->num, crypto_info, crypto_info_len, num);
ret = ktls_start(b->num, crypto_info, num);
if (ret)
BIO_set_ktls_flag(b, num);
break;

15
include/internal/ktls.h
View File

@ -66,15 +66,14 @@ static ossl_inline int ktls_enable(int fd)
* as using TLS. If successful, then data received for this socket will
* be authenticated and decrypted using the tls_en provided here.
*/
static ossl_inline int ktls_start(int fd,
void *tls_en,
size_t len, int is_tx)
static ossl_inline int ktls_start(int fd, ktls_crypto_info_t *tls_en, int is_tx)
{
if (is_tx)
return setsockopt(fd, IPPROTO_TCP, TCP_TXTLS_ENABLE,
tls_en, len) ? 0 : 1;
tls_en, sizeof(*tls_en)) ? 0 : 1;
# ifndef OPENSSL_NO_KTLS_RX
return setsockopt(fd, IPPROTO_TCP, TCP_RXTLS_ENABLE, tls_en, len) ? 0 : 1;
return setsockopt(fd, IPPROTO_TCP, TCP_RXTLS_ENABLE, tls_en,
sizeof(*tls_en)) ? 0 : 1;
# else
return 0;
# endif
@ -281,11 +280,11 @@ static ossl_inline int ktls_enable(int fd)
* If successful, then data received using this socket will be decrypted,
* authenticated and decapsulated using the crypto_info provided here.
*/
static ossl_inline int ktls_start(int fd, void *crypto_info,
size_t len, int is_tx)
static ossl_inline int ktls_start(int fd, ktls_crypto_info_t *crypto_info,
int is_tx)
{
return setsockopt(fd, SOL_TLS, is_tx ? TLS_TX : TLS_RX,
crypto_info, len) ? 0 : 1;
crypto_info, crypto_info->tls_crypto_info_len) ? 0 : 1;
}
/*