[CRYPTO] api: Add support for multiple template parameters

This patch adds support for having multiple parameters to
a template, separated by a comma.  It also adds support
for integer parameters in addition to the current algorithm
parameter type.

This will be used by the authenc template which will have
four parameters: the authentication algorithm, the encryption
algorithm, the authentication size and the encryption key
length.

Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>

1 files changed, 8 insertions, 0 deletions

diff --git a/include/linux/crypto.h b/include/linux/crypto.h
index 1072f9abaef6..da09b4ac3ae9 100644
--- a/include/linux/crypto.h
+++ b/include/linux/crypto.h
@@ -425,11 +425,15 @@ enum {
         CRYPTOA_UNSPEC,
         CRYPTOA_ALG,
         CRYPTOA_TYPE,
+        CRYPTOA_U32,
         __CRYPTOA_MAX,
 };
 
 #define CRYPTOA_MAX (__CRYPTOA_MAX - 1)
 
+/* Maximum number of (rtattr) parameters for each template. */
+#define CRYPTO_MAX_ATTRS 32
+
 struct crypto_attr_alg {
         char name[CRYPTO_MAX_ALG_NAME];
 };
@@ -439,6 +443,10 @@ struct crypto_attr_type {
         u32 mask;
 };
 
+struct crypto_attr_u32 {
+        u32 num;
+};
+
 /* 
  * Transform user interface.
  */