This function is quite useful other places, so make it generally
accessible.
Signed-off-by: David Sommerseth <dav...@openvpn.net>
---
src/openvpn/crypto.c | 18 ------------------
src/openvpn/crypto.h | 18 ++++++++++++++++++
2 files changed, 18 insertions(+), 18 deletions(-)
diff --git a/src/openvpn/crypto.c b/src/openvpn/crypto.c
index 3dd4a9e..026d9ae 100644
--- a/src/openvpn/crypto.c
+++ b/src/openvpn/crypto.c
@@ -66,24 +66,6 @@
#define CRYPT_ERROR(format) \
do { msg (D_CRYPT_ERRORS, "%s: " format, error_prefix); goto error_exit; }
while (false)
-/**
- * As memcmp(), but constant-time.
- * Returns 0 when data is equal, non-zero otherwise.
- */
-static int
-memcmp_constant_time (const void *a, const void *b, size_t size) {
- const uint8_t * a1 = a;
- const uint8_t * b1 = b;
- int ret = 0;
- size_t i;
-
- for (i = 0; i < size; i++) {
- ret |= *a1++ ^ *b1++;
- }
-
- return ret;
-}
-
static void
openvpn_encrypt_aead (struct buffer *buf, struct buffer work,
struct crypto_options *opt) {
diff --git a/src/openvpn/crypto.h b/src/openvpn/crypto.h
index 3b6bb98..9ae0610 100644
--- a/src/openvpn/crypto.h
+++ b/src/openvpn/crypto.h
@@ -476,6 +476,24 @@ void get_tls_handshake_key (const struct key_type
*key_type,
* Inline functions
*/
+/**
+ * As memcmp(), but constant-time.
+ * Returns 0 when data is equal, non-zero otherwise.
+ */
+static int
+memcmp_constant_time (const void *a, const void *b, size_t size) {
+ const uint8_t * a1 = a;
+ const uint8_t * b1 = b;
+ int ret = 0;
+ size_t i;
+
+ for (i = 0; i < size; i++) {
+ ret |= *a1++ ^ *b1++;
+ }
+
+ return ret;
+}
+
static inline bool
key_ctx_bi_defined(const struct key_ctx_bi* key)
{
--
1.8.3.1
------------------------------------------------------------------------------
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