package/vboot-utils: Add support for openssl 1.1.x

Backported changes from commit bce7904376beee2912932433a4634c1c25afe2f5,
there was some conflicts in few places which includes openssl_compat.h and
1 place in vb2_rsa_sig_alg function.

Signed-off-by: Vadim Kochan <vadim4j@gmail.com>
Signed-off-by: Patrick Havelange <patrick.havelange@essensium.com>
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>

package/vboot-utils/0006-Update-for-openssl-1.1.patch

@@ -0,0 +1,268 @@
+From 2e730b2259c701f16d473dbfb7e58e86a6e71b01 Mon Sep 17 00:00:00 2001
+From: Daniel Kurtz <djkurtz@chromium.org>
+Date: Fri, 18 Jan 2019 13:04:59 +0200
+Subject: [PATCH] Update for openssl 1.1
+
+OpenSSL 1.1 has made significant non-backwards compatible changes to its
+API as outlined in:
+https://wiki.openssl.org/index.php/OpenSSL_1.1.0_Changes
+
+BRANCH=none
+BUG=chromium:738114
+TEST=cros_workon --host start vboot_reference
+TEST=w/ openssl-1.0.2k: sudo emerge vboot_reference
+TEST=w/ openssl-1.1.0e: sudo emerge vboot_reference
+ => both build ok
+ $ futility version
+  => command runs without error
+TEST=cros_workon --board=soraka start vboot_reference coreboot
+TEST=w/ openssl-1.0.2k: emerge-soraka vboot_reference coreboot
+TEST=w/ openssl-1.1.0e: emerge-soraka vboot_reference coreboot
+ => All build ok
+
+Change-Id: I37cfc8cbb04a092eab7b0b3224f475b82609447c
+Reviewed-on: https://chromium-review.googlesource.com/557739
+Commit-Ready: Daniel Kurtz <djkurtz@chromium.org>
+Tested-by: Daniel Kurtz <djkurtz@chromium.org>
+Reviewed-by: Randall Spangler <rspangler@chromium.org>
+Reviewed-by: Mike Frysinger <vapier@chromium.org>
+
+(cherry-picked from bce7904376beee2912932433a4634c1c25afe2f5)
+Signed-off-by: Vadim Kochan <vadim4j@gmail.com>
+---
+ futility/cmd_create.c         |  5 ++++-
+ futility/vb2_helper.c         |  7 +++++--
+ host/include/openssl_compat.h | 26 ++++++++++++++++++++++++++
+ host/lib/util_misc.c          |  7 +++++--
+ host/lib21/host_key.c         |  8 +++++++-
+ utility/dumpRSAPublicKey.c    | 19 ++++++++++++++-----
+ 6 files changed, 61 insertions(+), 11 deletions(-)
+ create mode 100644 host/include/openssl_compat.h
+
+diff --git a/futility/cmd_create.c b/futility/cmd_create.c
+index 143ea9ae..80d3fd90 100644
+--- a/futility/cmd_create.c
++++ b/futility/cmd_create.c
+@@ -13,6 +13,7 @@
+ #include "2common.h"
+ #include "2id.h"
+ #include "2rsa.h"
++#include "openssl_compat.h"
+ #include "util_misc.h"
+ #include "vb2_common.h"
+ #include "vb2_struct.h"
+@@ -170,6 +171,7 @@ static int vb2_make_keypair()
+ 	enum vb2_signature_algorithm sig_alg;
+ 	uint8_t *pubkey_buf = 0;
+ 	int has_priv = 0;
++	const BIGNUM *rsa_d;
+ 
+ 	FILE *fp;
+ 	int ret = 1;
+@@ -193,7 +195,8 @@ static int vb2_make_keypair()
+ 		goto done;
+ 	}
+ 	/* Public keys doesn't have the private exponent */
+-	has_priv = !!rsa_key->d;
++	RSA_get0_key(rsa_key, NULL, NULL, &rsa_d);
++	has_priv = !!rsa_d;
+ 	if (!has_priv)
+ 		fprintf(stderr, "%s has a public key only.\n", infile);
+ 
+diff --git a/futility/vb2_helper.c b/futility/vb2_helper.c
+index 51a78375..c6cc0fdd 100644
+--- a/futility/vb2_helper.c
++++ b/futility/vb2_helper.c
+@@ -11,6 +11,7 @@
+ #include "2common.h"
+ #include "2id.h"
+ #include "2rsa.h"
++#include "openssl_compat.h"
+ #include "util_misc.h"
+ #include "vb2_common.h"
+ #include "vb2_struct.h"
+@@ -216,6 +217,7 @@ int ft_show_pem(const char *name, uint8_t *buf, uint32_t len, void *data)
+ 	uint8_t *keyb, *digest;
+ 	uint32_t keyb_len;
+ 	int i, bits;
++	const BIGNUM *rsa_key_n, *rsa_key_d;
+ 
+ 	/* We're called only after ft_recognize_pem, so this should work. */
+ 	rsa_key = rsa_from_buffer(buf, len);
+@@ -223,10 +225,11 @@ int ft_show_pem(const char *name, uint8_t *buf, uint32_t len, void *data)
+ 		DIE;
+ 
+ 	/* Use to presence of the private exponent to decide if it's public */
+-	printf("%s Key file:      %s\n", rsa_key->d ? "Private" : "Public",
++	RSA_get0_key(rsa_key, &rsa_key_n, NULL, &rsa_key_d);
++	printf("%s Key file:      %s\n", rsa_key_d ? "Private" : "Public",
+ 					 name);
+ 
+-	bits = BN_num_bits(rsa_key->n);
++	bits = BN_num_bits(rsa_key_n);
+ 	printf("  Key length:          %d\n", bits);
+ 
+ 	if (vb_keyb_from_rsa(rsa_key, &keyb, &keyb_len)) {
+diff --git a/host/include/openssl_compat.h b/host/include/openssl_compat.h
+new file mode 100644
+index 00000000..7771f32a
+--- /dev/null
++++ b/host/include/openssl_compat.h
+@@ -0,0 +1,26 @@
++/* Copyright 2017 The Chromium OS Authors. All rights reserved.
++ * Use of this source code is governed by a BSD-style license that can be
++ * found in the LICENSE file.
++ */
++
++#ifndef VBOOT_REFERENCE_OPENSSL_COMPAT_H_
++#define VBOOT_REFERENCE_OPENSSL_COMPAT_H_
++
++#include <openssl/rsa.h>
++
++#if OPENSSL_VERSION_NUMBER < 0x10100000L
++
++static inline void RSA_get0_key(const RSA *rsa, const BIGNUM **n,
++				const BIGNUM **e, const BIGNUM **d)
++{
++	if (n != NULL)
++		*n = rsa->n;
++	if (e != NULL)
++		*e = rsa->e;
++	if (d != NULL)
++		*d = rsa->d;
++}
++
++#endif  /* OPENSSL_VERSION_NUMBER < 0x10100000L */
++
++#endif  /* VBOOT_REFERENCE_OPENSSL_COMPAT_H_ */
+diff --git a/host/lib/util_misc.c b/host/lib/util_misc.c
+index 03ec683f..f0a1f7ad 100644
+--- a/host/lib/util_misc.c
++++ b/host/lib/util_misc.c
+@@ -15,6 +15,7 @@
+ 
+ #include "cryptolib.h"
+ #include "host_common.h"
++#include "openssl_compat.h"
+ #include "util_misc.h"
+ #include "vboot_common.h"
+ 
+@@ -58,6 +59,7 @@ int vb_keyb_from_rsa(struct rsa_st *rsa_private_key,
+ 	BIGNUM *N0inv = NULL, *R = NULL, *RR = NULL;
+ 	BIGNUM *RRTemp = NULL, *NnumBits = NULL;
+ 	BIGNUM *n = NULL, *rr = NULL;
++	const BIGNUM *rsa_private_key_n;
+ 	BN_CTX *bn_ctx = BN_CTX_new();
+ 	uint32_t n0invout;
+ 	uint32_t bufsize;
+@@ -65,7 +67,7 @@ int vb_keyb_from_rsa(struct rsa_st *rsa_private_key,
+ 	int retval = 1;
+ 
+ 	/* Size of RSA key in 32-bit words */
+-	nwords = BN_num_bits(rsa_private_key->n) / 32;
++	nwords = RSA_size(rsa_private_key) / 4;
+ 
+ 	bufsize = (2 + nwords + nwords) * sizeof(uint32_t);
+ 	outbuf = malloc(bufsize);
+@@ -94,7 +96,8 @@ int vb_keyb_from_rsa(struct rsa_st *rsa_private_key,
+ 	NEW_BIGNUM(B);
+ #undef NEW_BIGNUM
+ 
+-	BN_copy(N, rsa_private_key->n);
++	RSA_get0_key(rsa_private_key, &rsa_private_key_n, NULL, NULL);
++	BN_copy(N, rsa_private_key_n);
+ 	BN_set_word(Big1, 1L);
+ 	BN_set_word(Big2, 2L);
+ 	BN_set_word(Big32, 32L);
+diff --git a/host/lib21/host_key.c b/host/lib21/host_key.c
+index f7ea1622..f9419ad3 100644
+--- a/host/lib21/host_key.c
++++ b/host/lib21/host_key.c
+@@ -17,6 +17,7 @@
+ #include "host_common.h"
+ #include "host_key2.h"
+ #include "host_misc.h"
++#include "openssl_compat.h"
+ 
+ struct vb2_text_vs_enum vb2_text_vs_algorithm[] = {
+ 	{"RSA1024 SHA1",   VB2_ALG_RSA1024_SHA1},
+@@ -544,7 +545,12 @@ int vb2_public_key_hash(struct vb2_public_key *key,
+ 
+ enum vb2_signature_algorithm vb2_rsa_sig_alg(struct rsa_st *rsa)
+ {
+-	int bits = BN_num_bits(rsa->n);
++	const BIGNUM *e, *n;
++	int exp, bits;
++
++	RSA_get0_key(rsa, &n, &e, NULL);
++	exp = BN_get_word(e);
++	bits = BN_num_bits(n);
+ 
+ 	switch (bits) {
+ 	case 1024:
+diff --git a/utility/dumpRSAPublicKey.c b/utility/dumpRSAPublicKey.c
+index b3b7b96b..a17b159e 100644
+--- a/utility/dumpRSAPublicKey.c
++++ b/utility/dumpRSAPublicKey.c
+@@ -14,14 +14,20 @@
+ #include <string.h>
+ #include <unistd.h>
+ 
++#include "openssl_compat.h"
++
+ /* Command line tool to extract RSA public keys from X.509 certificates
+  * and output a pre-processed version of keys for use by RSA verification
+  * routines.
+  */
+ 
+ int check(RSA* key) {
+-  int public_exponent = BN_get_word(key->e);
+-  int modulus = BN_num_bits(key->n);
++  const BIGNUM *n, *e;
++  int public_exponent, modulus;
++
++  RSA_get0_key(key, &n, &e, NULL);
++  public_exponent = BN_get_word(e);
++  modulus = BN_num_bits(n);
+ 
+   if (public_exponent != 65537) {
+     fprintf(stderr, "WARNING: Public exponent should be 65537 (but is %d).\n",
+@@ -40,7 +46,8 @@ int check(RSA* key) {
+  */
+ void output(RSA* key) {
+   int i, nwords;
+-  BIGNUM *N = key->n;
++  const BIGNUM *key_n;
++  BIGNUM *N = NULL;
+   BIGNUM *Big1 = NULL, *Big2 = NULL, *Big32 = NULL, *BigMinus1 = NULL;
+   BIGNUM *B = NULL;
+   BIGNUM *N0inv= NULL, *R = NULL, *RR = NULL, *RRTemp = NULL, *NnumBits = NULL;
+@@ -48,14 +55,15 @@ void output(RSA* key) {
+   BN_CTX *bn_ctx = BN_CTX_new();
+   uint32_t n0invout;
+ 
+-  N = key->n;
+   /* Output size of RSA key in 32-bit words */
+-  nwords = BN_num_bits(N) / 32;
++  nwords = RSA_size(key) / 4;
+   if (-1 == write(1, &nwords, sizeof(nwords)))
+     goto failure;
+ 
+ 
+   /* Initialize BIGNUMs */
++  RSA_get0_key(key, &key_n, NULL, NULL);
++  N = BN_dup(key_n);
+   Big1 = BN_new();
+   Big2 = BN_new();
+   Big32 = BN_new();
+@@ -120,6 +128,7 @@ void output(RSA* key) {
+ 
+ failure:
+   /* Free BIGNUMs. */
++  BN_free(N);
+   BN_free(Big1);
+   BN_free(Big2);
+   BN_free(Big32);
+-- 
+2.14.1
+