uboot-mvebu: add OpenSSL compat patches

Fixes the following build issue: "undefined reference to `EVP_MD_CTX_create'"

From: Jelle van der Waa <jelle@vdwaa.nl>

The rsa_st struct has been made opaque in 1.1.x, add forward compatible
code to access the n, e, d members of rsa_struct.

EVP_MD_CTX_cleanup has been removed in 1.1.x and EVP_MD_CTX_reset should be
called to reinitialise an already created structure.

Signed-off-by: Marko Ratkaj <marko.ratkaj@sartura.hr>

1 files changed, 96 insertions, 0 deletions

diff --git a/package/boot/uboot-mvebu/patches/0012-tools-kwbimage-fix-build-with-OpenSSL-1.1.x.patch b/package/boot/uboot-mvebu/patches/0012-tools-kwbimage-fix-build-with-OpenSSL-1.1.x.patch
new file mode 100644
index 0000000..8829699
--- /dev/null
+++ b/package/boot/uboot-mvebu/patches/0012-tools-kwbimage-fix-build-with-OpenSSL-1.1.x.patch
@@ -0,0 +1,96 @@
+From 65030804dc57f3488e4ffe21e72fc65cd245cb98 Mon Sep 17 00:00:00 2001
+From: Jelle van der Waa <jelle@vdwaa.nl>
+Date: Mon, 8 May 2017 21:31:20 +0200
+Subject: [PATCH 2/2] tools: kwbimage fix build with OpenSSL 1.1.x
+
+The rsa_st struct has been made opaque in 1.1.x, add forward compatible
+code to access the n, e, d members of rsa_struct.
+
+EVP_MD_CTX_cleanup has been removed in 1.1.x and EVP_MD_CTX_reset should be
+called to reinitialise an already created structure.
+
+Signed-off-by: Jelle van der Waa <jelle@vdwaa.nl>
+---
+ tools/kwbimage.c | 36 ++++++++++++++++++++++++++++++------
+ 1 file changed, 30 insertions(+), 6 deletions(-)
+
+--- a/tools/kwbimage.c
++++ b/tools/kwbimage.c
+@@ -18,10 +18,30 @@
+ #include "kwbimage.h"
+ 
+ #ifdef CONFIG_KWB_SECURE
++#include <openssl/bn.h>
+ #include <openssl/rsa.h>
+ #include <openssl/pem.h>
+ #include <openssl/err.h>
+ #include <openssl/evp.h>
++
++#if OPENSSL_VERSION_NUMBER < 0x10100000L
++static void RSA_get0_key(const RSA *r,
++                 const BIGNUM **n, const BIGNUM **e, const BIGNUM **d)
++{
++   if (n != NULL)
++       *n = r->n;
++   if (e != NULL)
++       *e = r->e;
++   if (d != NULL)
++       *d = r->d;
++}
++
++#else
++void EVP_MD_CTX_cleanup(EVP_MD_CTX *ctx)
++{
++	EVP_MD_CTX_reset(ctx);
++}
++#endif
+ #endif
+ 
+ static struct image_cfg_element *image_cfg;
+@@ -470,12 +490,16 @@ static int kwb_export_pubkey(RSA *key, s
+ 			     char *keyname)
+ {
+ 	int size_exp, size_mod, size_seq;
++	const BIGNUM *key_e, *key_n;
+ 	uint8_t *cur;
+ 	char *errmsg = "Failed to encode %s\n";
+ 
+-	if (!key || !key->e || !key->n || !dst) {
++	RSA_get0_key(key, NULL, &key_e, NULL);
++	RSA_get0_key(key, &key_n, NULL, NULL);
++
++	if (!key || !key_e || !key_n || !dst) {
+ 		fprintf(stderr, "export pk failed: (%p, %p, %p, %p)",
+-			key, key->e, key->n, dst);
++			key, key_e, key_n, dst);
+ 		fprintf(stderr, errmsg, keyname);
+ 		return -EINVAL;
+ 	}
+@@ -490,8 +514,8 @@ static int kwb_export_pubkey(RSA *key, s
+ 	 * do the encoding manually.
+ 	 */
+ 
+-	size_exp = BN_num_bytes(key->e);
+-	size_mod = BN_num_bytes(key->n);
++	size_exp = BN_num_bytes(key_e);
++	size_mod = BN_num_bytes(key_n);
+ 	size_seq = 4 + size_mod + 4 + size_exp;
+ 
+ 	if (size_mod > 256) {
+@@ -520,14 +544,14 @@ static int kwb_export_pubkey(RSA *key, s
+ 	*cur++ = 0x82;
+ 	*cur++ = (size_mod >> 8) & 0xFF;
+ 	*cur++ = size_mod & 0xFF;
+-	BN_bn2bin(key->n, cur);
++	BN_bn2bin(key_n, cur);
+ 	cur += size_mod;
+ 	/* Exponent */
+ 	*cur++ = 0x02;		/* INTEGER */
+ 	*cur++ = 0x82;
+ 	*cur++ = (size_exp >> 8) & 0xFF;
+ 	*cur++ = size_exp & 0xFF;
+-	BN_bn2bin(key->e, cur);
++	BN_bn2bin(key_e, cur);
+ 
+ 	if (hashf) {
+ 		struct hash_v1 pk_hash;