crypto: algif_aead - Temporarily disable all AEAD algorithms

As the AEAD conversion is still ongoing, we do not yet wish to export legacy AEAD implementations to user-space, as their calling convention will change. This patch actually disables all AEAD algorithms because some of them (e.g., cryptd) will need to be modified to propagate this flag. Subsequent patches will reenable them on an individual basis. Signed-off-by: Herbert Xu <[email protected]>
mrcsosa · Jun 22, 2015 · 3e90950 · 3e90950
1 parent 15539de
commit 3e90950
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diff --git a/crypto/algif_aead.c b/crypto/algif_aead.c
@@ -514,7 +514,8 @@ static struct proto_ops algif_aead_ops = {
 
 static void *aead_bind(const char *name, u32 type, u32 mask)
 {
-	return crypto_alloc_aead(name, type, mask);
+	return crypto_alloc_aead(name, type | CRYPTO_ALG_AEAD_NEW,
+				 mask | CRYPTO_ALG_AEAD_NEW);
 }
 
 static void aead_release(void *private)

diff --git a/include/linux/crypto.h b/include/linux/crypto.h
@@ -101,6 +101,12 @@
  */
 #define CRYPTO_ALG_INTERNAL		0x00002000
 
+/*
+ * Temporary flag used to prevent legacy AEAD implementations from
+ * being used by user-space.
+ */
+#define CRYPTO_ALG_AEAD_NEW		0x00004000
+
 /*
  * Transform masks and values (for crt_flags).
  */