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Upgrade openssl from 1.1.0e to 1.1.1b, with source code. 4.0.78
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1476 changed files with 616554 additions and 4 deletions
201
trunk/3rdparty/openssl-1.1-fit/crypto/asn1/x_long.c
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trunk/3rdparty/openssl-1.1-fit/crypto/asn1/x_long.c
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/*
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* Copyright 2000-2017 The OpenSSL Project Authors. All Rights Reserved.
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*
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* Licensed under the OpenSSL license (the "License"). You may not use
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* this file except in compliance with the License. You can obtain a copy
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* in the file LICENSE in the source distribution or at
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* https://www.openssl.org/source/license.html
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*/
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#include <stdio.h>
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#include "internal/cryptlib.h"
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#include <openssl/asn1t.h>
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#if !(OPENSSL_API_COMPAT < 0x10200000L)
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NON_EMPTY_TRANSLATION_UNIT
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#else
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#define COPY_SIZE(a, b) (sizeof(a) < sizeof(b) ? sizeof(a) : sizeof(b))
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/*
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* Custom primitive type for long handling. This converts between an
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* ASN1_INTEGER and a long directly.
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*/
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static int long_new(ASN1_VALUE **pval, const ASN1_ITEM *it);
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static void long_free(ASN1_VALUE **pval, const ASN1_ITEM *it);
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static int long_i2c(ASN1_VALUE **pval, unsigned char *cont, int *putype,
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const ASN1_ITEM *it);
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static int long_c2i(ASN1_VALUE **pval, const unsigned char *cont, int len,
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int utype, char *free_cont, const ASN1_ITEM *it);
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static int long_print(BIO *out, ASN1_VALUE **pval, const ASN1_ITEM *it,
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int indent, const ASN1_PCTX *pctx);
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static ASN1_PRIMITIVE_FUNCS long_pf = {
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NULL, 0,
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long_new,
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long_free,
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long_free, /* Clear should set to initial value */
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long_c2i,
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long_i2c,
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long_print
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};
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ASN1_ITEM_start(LONG)
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ASN1_ITYPE_PRIMITIVE, V_ASN1_INTEGER, NULL, 0, &long_pf, ASN1_LONG_UNDEF, "LONG"
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ASN1_ITEM_end(LONG)
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ASN1_ITEM_start(ZLONG)
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ASN1_ITYPE_PRIMITIVE, V_ASN1_INTEGER, NULL, 0, &long_pf, 0, "ZLONG"
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ASN1_ITEM_end(ZLONG)
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static int long_new(ASN1_VALUE **pval, const ASN1_ITEM *it)
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{
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memcpy(pval, &it->size, COPY_SIZE(*pval, it->size));
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return 1;
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}
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static void long_free(ASN1_VALUE **pval, const ASN1_ITEM *it)
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{
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memcpy(pval, &it->size, COPY_SIZE(*pval, it->size));
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}
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/*
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* Originally BN_num_bits_word was called to perform this operation, but
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* trouble is that there is no guarantee that sizeof(long) equals to
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* sizeof(BN_ULONG). BN_ULONG is a configurable type that can be as wide
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* as long, but also double or half...
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*/
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static int num_bits_ulong(unsigned long value)
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{
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size_t i;
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unsigned long ret = 0;
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/*
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* It is argued that *on average* constant counter loop performs
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* not worse [if not better] than one with conditional break or
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* mask-n-table-lookup-style, because of branch misprediction
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* penalties.
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*/
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for (i = 0; i < sizeof(value) * 8; i++) {
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ret += (value != 0);
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value >>= 1;
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}
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return (int)ret;
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}
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static int long_i2c(ASN1_VALUE **pval, unsigned char *cont, int *putype,
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const ASN1_ITEM *it)
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{
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long ltmp;
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unsigned long utmp, sign;
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int clen, pad, i;
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memcpy(<mp, pval, COPY_SIZE(*pval, ltmp));
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if (ltmp == it->size)
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return -1;
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/*
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* Convert the long to positive: we subtract one if negative so we can
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* cleanly handle the padding if only the MSB of the leading octet is
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* set.
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*/
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if (ltmp < 0) {
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sign = 0xff;
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utmp = 0 - (unsigned long)ltmp - 1;
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} else {
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sign = 0;
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utmp = ltmp;
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}
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clen = num_bits_ulong(utmp);
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/* If MSB of leading octet set we need to pad */
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if (!(clen & 0x7))
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pad = 1;
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else
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pad = 0;
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/* Convert number of bits to number of octets */
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clen = (clen + 7) >> 3;
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if (cont != NULL) {
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if (pad)
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*cont++ = (unsigned char)sign;
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for (i = clen - 1; i >= 0; i--) {
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cont[i] = (unsigned char)(utmp ^ sign);
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utmp >>= 8;
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}
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}
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return clen + pad;
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}
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static int long_c2i(ASN1_VALUE **pval, const unsigned char *cont, int len,
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int utype, char *free_cont, const ASN1_ITEM *it)
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{
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int i;
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long ltmp;
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unsigned long utmp = 0, sign = 0x100;
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if (len > 1) {
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/*
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* Check possible pad byte. Worst case, we're skipping past actual
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* content, but since that's only with 0x00 and 0xff and we set neg
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* accordingly, the result will be correct in the end anyway.
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*/
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switch (cont[0]) {
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case 0xff:
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cont++;
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len--;
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sign = 0xff;
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break;
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case 0:
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cont++;
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len--;
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sign = 0;
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break;
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}
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}
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if (len > (int)sizeof(long)) {
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ASN1err(ASN1_F_LONG_C2I, ASN1_R_INTEGER_TOO_LARGE_FOR_LONG);
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return 0;
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}
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if (sign == 0x100) {
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/* Is it negative? */
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if (len && (cont[0] & 0x80))
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sign = 0xff;
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else
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sign = 0;
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} else if (((sign ^ cont[0]) & 0x80) == 0) { /* same sign bit? */
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ASN1err(ASN1_F_LONG_C2I, ASN1_R_ILLEGAL_PADDING);
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return 0;
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}
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utmp = 0;
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for (i = 0; i < len; i++) {
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utmp <<= 8;
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utmp |= cont[i] ^ sign;
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}
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ltmp = (long)utmp;
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if (ltmp < 0) {
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ASN1err(ASN1_F_LONG_C2I, ASN1_R_INTEGER_TOO_LARGE_FOR_LONG);
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return 0;
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}
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if (sign)
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ltmp = -ltmp - 1;
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if (ltmp == it->size) {
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ASN1err(ASN1_F_LONG_C2I, ASN1_R_INTEGER_TOO_LARGE_FOR_LONG);
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return 0;
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}
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memcpy(pval, <mp, COPY_SIZE(*pval, ltmp));
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return 1;
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}
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static int long_print(BIO *out, ASN1_VALUE **pval, const ASN1_ITEM *it,
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int indent, const ASN1_PCTX *pctx)
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{
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long l;
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memcpy(&l, pval, COPY_SIZE(*pval, l));
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return BIO_printf(out, "%ld\n", l);
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}
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#endif
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