zte's code,first commit
Change-Id: I9a04da59e459a9bc0d67f101f700d9d7dc8d681b
diff --git a/ap/lib/libssl/openssl-1.1.1o/crypto/asn1/x_bignum.c b/ap/lib/libssl/openssl-1.1.1o/crypto/asn1/x_bignum.c
new file mode 100644
index 0000000..c6b3acc
--- /dev/null
+++ b/ap/lib/libssl/openssl-1.1.1o/crypto/asn1/x_bignum.c
@@ -0,0 +1,157 @@
+/*
+ * Copyright 2000-2019 The OpenSSL Project Authors. All Rights Reserved.
+ *
+ * Licensed under the OpenSSL license (the "License"). You may not use
+ * this file except in compliance with the License. You can obtain a copy
+ * in the file LICENSE in the source distribution or at
+ * https://www.openssl.org/source/license.html
+ */
+
+#include <stdio.h>
+#include "internal/cryptlib.h"
+#include <openssl/asn1t.h>
+#include <openssl/bn.h>
+
+/*
+ * Custom primitive type for BIGNUM handling. This reads in an ASN1_INTEGER
+ * as a BIGNUM directly. Currently it ignores the sign which isn't a problem
+ * since all BIGNUMs used are non negative and anything that looks negative
+ * is normally due to an encoding error.
+ */
+
+#define BN_SENSITIVE 1
+
+static int bn_new(ASN1_VALUE **pval, const ASN1_ITEM *it);
+static int bn_secure_new(ASN1_VALUE **pval, const ASN1_ITEM *it);
+static void bn_free(ASN1_VALUE **pval, const ASN1_ITEM *it);
+
+static int bn_i2c(ASN1_VALUE **pval, unsigned char *cont, int *putype,
+ const ASN1_ITEM *it);
+static int bn_c2i(ASN1_VALUE **pval, const unsigned char *cont, int len,
+ int utype, char *free_cont, const ASN1_ITEM *it);
+static int bn_secure_c2i(ASN1_VALUE **pval, const unsigned char *cont, int len,
+ int utype, char *free_cont, const ASN1_ITEM *it);
+static int bn_print(BIO *out, ASN1_VALUE **pval, const ASN1_ITEM *it,
+ int indent, const ASN1_PCTX *pctx);
+
+static ASN1_PRIMITIVE_FUNCS bignum_pf = {
+ NULL, 0,
+ bn_new,
+ bn_free,
+ 0,
+ bn_c2i,
+ bn_i2c,
+ bn_print
+};
+
+static ASN1_PRIMITIVE_FUNCS cbignum_pf = {
+ NULL, 0,
+ bn_secure_new,
+ bn_free,
+ 0,
+ bn_secure_c2i,
+ bn_i2c,
+ bn_print
+};
+
+ASN1_ITEM_start(BIGNUM)
+ ASN1_ITYPE_PRIMITIVE, V_ASN1_INTEGER, NULL, 0, &bignum_pf, 0, "BIGNUM"
+ASN1_ITEM_end(BIGNUM)
+
+ASN1_ITEM_start(CBIGNUM)
+ ASN1_ITYPE_PRIMITIVE, V_ASN1_INTEGER, NULL, 0, &cbignum_pf, BN_SENSITIVE, "CBIGNUM"
+ASN1_ITEM_end(CBIGNUM)
+
+static int bn_new(ASN1_VALUE **pval, const ASN1_ITEM *it)
+{
+ *pval = (ASN1_VALUE *)BN_new();
+ if (*pval != NULL)
+ return 1;
+ else
+ return 0;
+}
+
+static int bn_secure_new(ASN1_VALUE **pval, const ASN1_ITEM *it)
+{
+ *pval = (ASN1_VALUE *)BN_secure_new();
+ if (*pval != NULL)
+ return 1;
+ else
+ return 0;
+}
+
+static void bn_free(ASN1_VALUE **pval, const ASN1_ITEM *it)
+{
+ if (*pval == NULL)
+ return;
+ if (it->size & BN_SENSITIVE)
+ BN_clear_free((BIGNUM *)*pval);
+ else
+ BN_free((BIGNUM *)*pval);
+ *pval = NULL;
+}
+
+static int bn_i2c(ASN1_VALUE **pval, unsigned char *cont, int *putype,
+ const ASN1_ITEM *it)
+{
+ BIGNUM *bn;
+ int pad;
+ if (*pval == NULL)
+ return -1;
+ bn = (BIGNUM *)*pval;
+ /* If MSB set in an octet we need a padding byte */
+ if (BN_num_bits(bn) & 0x7)
+ pad = 0;
+ else
+ pad = 1;
+ if (cont) {
+ if (pad)
+ *cont++ = 0;
+ BN_bn2bin(bn, cont);
+ }
+ return pad + BN_num_bytes(bn);
+}
+
+static int bn_c2i(ASN1_VALUE **pval, const unsigned char *cont, int len,
+ int utype, char *free_cont, const ASN1_ITEM *it)
+{
+ BIGNUM *bn;
+
+ if (*pval == NULL && !bn_new(pval, it))
+ return 0;
+ bn = (BIGNUM *)*pval;
+ if (!BN_bin2bn(cont, len, bn)) {
+ bn_free(pval, it);
+ return 0;
+ }
+ return 1;
+}
+
+static int bn_secure_c2i(ASN1_VALUE **pval, const unsigned char *cont, int len,
+ int utype, char *free_cont, const ASN1_ITEM *it)
+{
+ int ret;
+ BIGNUM *bn;
+
+ if (*pval == NULL && !bn_secure_new(pval, it))
+ return 0;
+
+ ret = bn_c2i(pval, cont, len, utype, free_cont, it);
+ if (!ret)
+ return 0;
+
+ /* Set constant-time flag for all secure BIGNUMS */
+ bn = (BIGNUM *)*pval;
+ BN_set_flags(bn, BN_FLG_CONSTTIME);
+ return ret;
+}
+
+static int bn_print(BIO *out, ASN1_VALUE **pval, const ASN1_ITEM *it,
+ int indent, const ASN1_PCTX *pctx)
+{
+ if (!BN_print(out, *(BIGNUM **)pval))
+ return 0;
+ if (BIO_puts(out, "\n") <= 0)
+ return 0;
+ return 1;
+}