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From 10be401a33e6ebcc325d6747914c70595cd53d0a Mon Sep 17 00:00:00 2001
From: Yashpal Dutta <yashpal.dutta@freescale.com>
Date: Thu, 24 Apr 2014 00:35:34 +0545
Subject: [PATCH 15/26] SW Backoff mechanism for dsa keygen

Upstream-status: Pending

DSA Keygen is not handled in default openssl dsa method. Due to
same null function pointer in SW DSA method, the backoff for dsa
keygen gives segmentation fault.

Signed-off-by: Yashpal Dutta <yashpal.dutta@freescale.com>
Tested-by: Cristian Stoica <cristian.stoica@freescale.com>
---
 crypto/engine/eng_cryptodev.c | 12 ++++++++----
 1 file changed, 8 insertions(+), 4 deletions(-)

diff --git a/crypto/engine/eng_cryptodev.c b/crypto/engine/eng_cryptodev.c
index 6d69336..dab8fea 100644
--- a/crypto/engine/eng_cryptodev.c
+++ b/crypto/engine/eng_cryptodev.c
@@ -2069,8 +2069,10 @@ static int cryptodev_dsa_keygen(DSA *dsa)
 	return ret;
 sw_try:
 	{
-		const DSA_METHOD *meth = DSA_OpenSSL();
-		ret = (meth->dsa_keygen)(dsa);
+		const DSA_METHOD *meth = dsa->meth;
+		dsa->meth = DSA_OpenSSL();
+		ret = DSA_generate_key(dsa);
+		dsa->meth = meth;
 	}
 	return ret;
 }
@@ -2124,11 +2126,13 @@ static int cryptodev_dsa_keygen_async(DSA *dsa,  struct pkc_cookie_s *cookie)
 	return ret;
 sw_try:
 	{
-		const DSA_METHOD *meth = DSA_OpenSSL();
+		const DSA_METHOD *meth = dsa->meth;
 
+		dsa->meth = DSA_OpenSSL();
 		if (kop)
 			free(kop);
-		ret = (meth->dsa_keygen)(dsa);
+		ret = DSA_generate_key(dsa);
+		dsa->meth = meth;
 		cookie->pkc_callback(cookie, 0);
 	}
 	return ret;
-- 
2.3.5