Replace vendored libcurl and minhook with submodules (#500)v1.17.1-rc1

* Replace vendored libcurl and minhook with submodules
* Add cmake utility for checking submodules and initializing them
* Update build instructions to use Git

1 files changed, 0 insertions, 421 deletions

diff --git a/thirdparty/internal/constant_time.h b/thirdparty/internal/constant_time.h
deleted file mode 100644
index 0ed6f823..00000000
--- a/thirdparty/internal/constant_time.h
+++ /dev/null
@@ -1,421 +0,0 @@
-/*
- * Copyright 2014-2021 The OpenSSL Project Authors. All Rights Reserved.
- *
- * Licensed under the Apache License 2.0 (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
- */
-
-#ifndef OSSL_INTERNAL_CONSTANT_TIME_H
-# define OSSL_INTERNAL_CONSTANT_TIME_H
-# pragma once
-
-# include <stdlib.h>
-# include <string.h>
-# include <openssl/e_os2.h>              /* For 'ossl_inline' */
-
-/*-
- * The boolean methods return a bitmask of all ones (0xff...f) for true
- * and 0 for false. This is useful for choosing a value based on the result
- * of a conditional in constant time. For example,
- *      if (a < b) {
- *        c = a;
- *      } else {
- *        c = b;
- *      }
- * can be written as
- *      unsigned int lt = constant_time_lt(a, b);
- *      c = constant_time_select(lt, a, b);
- */
-
-/* Returns the given value with the MSB copied to all the other bits. */
-static ossl_inline unsigned int constant_time_msb(unsigned int a);
-/* Convenience method for uint32_t. */
-static ossl_inline uint32_t constant_time_msb_32(uint32_t a);
-/* Convenience method for uint64_t. */
-static ossl_inline uint64_t constant_time_msb_64(uint64_t a);
-
-/* Returns 0xff..f if a < b and 0 otherwise. */
-static ossl_inline unsigned int constant_time_lt(unsigned int a,
-                                                 unsigned int b);
-/* Convenience method for getting an 8-bit mask. */
-static ossl_inline unsigned char constant_time_lt_8(unsigned int a,
-                                                    unsigned int b);
-/* Convenience method for uint64_t. */
-static ossl_inline uint64_t constant_time_lt_64(uint64_t a, uint64_t b);
-
-/* Returns 0xff..f if a >= b and 0 otherwise. */
-static ossl_inline unsigned int constant_time_ge(unsigned int a,
-                                                 unsigned int b);
-/* Convenience method for getting an 8-bit mask. */
-static ossl_inline unsigned char constant_time_ge_8(unsigned int a,
-                                                    unsigned int b);
-
-/* Returns 0xff..f if a == 0 and 0 otherwise. */
-static ossl_inline unsigned int constant_time_is_zero(unsigned int a);
-/* Convenience method for getting an 8-bit mask. */
-static ossl_inline unsigned char constant_time_is_zero_8(unsigned int a);
-/* Convenience method for getting a 32-bit mask. */
-static ossl_inline uint32_t constant_time_is_zero_32(uint32_t a);
-
-/* Returns 0xff..f if a == b and 0 otherwise. */
-static ossl_inline unsigned int constant_time_eq(unsigned int a,
-                                                 unsigned int b);
-/* Convenience method for getting an 8-bit mask. */
-static ossl_inline unsigned char constant_time_eq_8(unsigned int a,
-                                                    unsigned int b);
-/* Signed integers. */
-static ossl_inline unsigned int constant_time_eq_int(int a, int b);
-/* Convenience method for getting an 8-bit mask. */
-static ossl_inline unsigned char constant_time_eq_int_8(int a, int b);
-
-/*-
- * Returns (mask & a) | (~mask & b).
- *
- * When |mask| is all 1s or all 0s (as returned by the methods above),
- * the select methods return either |a| (if |mask| is nonzero) or |b|
- * (if |mask| is zero).
- */
-static ossl_inline unsigned int constant_time_select(unsigned int mask,
-                                                     unsigned int a,
-                                                     unsigned int b);
-/* Convenience method for unsigned chars. */
-static ossl_inline unsigned char constant_time_select_8(unsigned char mask,
-                                                        unsigned char a,
-                                                        unsigned char b);
-
-/* Convenience method for uint32_t. */
-static ossl_inline uint32_t constant_time_select_32(uint32_t mask, uint32_t a,
-                                                    uint32_t b);
-
-/* Convenience method for uint64_t. */
-static ossl_inline uint64_t constant_time_select_64(uint64_t mask, uint64_t a,
-                                                    uint64_t b);
-/* Convenience method for signed integers. */
-static ossl_inline int constant_time_select_int(unsigned int mask, int a,
-                                                int b);
-
-
-static ossl_inline unsigned int constant_time_msb(unsigned int a)
-{
-    return 0 - (a >> (sizeof(a) * 8 - 1));
-}
-
-
-static ossl_inline uint32_t constant_time_msb_32(uint32_t a)
-{
-    return 0 - (a >> 31);
-}
-
-static ossl_inline uint64_t constant_time_msb_64(uint64_t a)
-{
-    return 0 - (a >> 63);
-}
-
-static ossl_inline size_t constant_time_msb_s(size_t a)
-{
-    return 0 - (a >> (sizeof(a) * 8 - 1));
-}
-
-static ossl_inline unsigned int constant_time_lt(unsigned int a,
-                                                 unsigned int b)
-{
-    return constant_time_msb(a ^ ((a ^ b) | ((a - b) ^ b)));
-}
-
-static ossl_inline size_t constant_time_lt_s(size_t a, size_t b)
-{
-    return constant_time_msb_s(a ^ ((a ^ b) | ((a - b) ^ b)));
-}
-
-static ossl_inline unsigned char constant_time_lt_8(unsigned int a,
-                                                    unsigned int b)
-{
-    return (unsigned char)constant_time_lt(a, b);
-}
-
-static ossl_inline uint64_t constant_time_lt_64(uint64_t a, uint64_t b)
-{
-    return constant_time_msb_64(a ^ ((a ^ b) | ((a - b) ^ b)));
-}
-
-static ossl_inline unsigned int constant_time_ge(unsigned int a,
-                                                 unsigned int b)
-{
-    return ~constant_time_lt(a, b);
-}
-
-static ossl_inline size_t constant_time_ge_s(size_t a, size_t b)
-{
-    return ~constant_time_lt_s(a, b);
-}
-
-static ossl_inline unsigned char constant_time_ge_8(unsigned int a,
-                                                    unsigned int b)
-{
-    return (unsigned char)constant_time_ge(a, b);
-}
-
-static ossl_inline unsigned char constant_time_ge_8_s(size_t a, size_t b)
-{
-    return (unsigned char)constant_time_ge_s(a, b);
-}
-
-static ossl_inline unsigned int constant_time_is_zero(unsigned int a)
-{
-    return constant_time_msb(~a & (a - 1));
-}
-
-static ossl_inline size_t constant_time_is_zero_s(size_t a)
-{
-    return constant_time_msb_s(~a & (a - 1));
-}
-
-static ossl_inline unsigned char constant_time_is_zero_8(unsigned int a)
-{
-    return (unsigned char)constant_time_is_zero(a);
-}
-
-static ossl_inline uint32_t constant_time_is_zero_32(uint32_t a)
-{
-    return constant_time_msb_32(~a & (a - 1));
-}
-
-static ossl_inline uint64_t constant_time_is_zero_64(uint64_t a)
-{
-    return constant_time_msb_64(~a & (a - 1));
-}
-
-static ossl_inline unsigned int constant_time_eq(unsigned int a,
-                                                 unsigned int b)
-{
-    return constant_time_is_zero(a ^ b);
-}
-
-static ossl_inline size_t constant_time_eq_s(size_t a, size_t b)
-{
-    return constant_time_is_zero_s(a ^ b);
-}
-
-static ossl_inline unsigned char constant_time_eq_8(unsigned int a,
-                                                    unsigned int b)
-{
-    return (unsigned char)constant_time_eq(a, b);
-}
-
-static ossl_inline unsigned char constant_time_eq_8_s(size_t a, size_t b)
-{
-    return (unsigned char)constant_time_eq_s(a, b);
-}
-
-static ossl_inline unsigned int constant_time_eq_int(int a, int b)
-{
-    return constant_time_eq((unsigned)(a), (unsigned)(b));
-}
-
-static ossl_inline unsigned char constant_time_eq_int_8(int a, int b)
-{
-    return constant_time_eq_8((unsigned)(a), (unsigned)(b));
-}
-
-/*
- * Returns the value unmodified, but avoids optimizations.
- * The barriers prevent the compiler from narrowing down the
- * possible value range of the mask and ~mask in the select
- * statements, which avoids the recognition of the select
- * and turning it into a conditional load or branch.
- */
-static ossl_inline unsigned int value_barrier(unsigned int a)
-{
-#if !defined(OPENSSL_NO_ASM) && defined(__GNUC__)
-    unsigned int r;
-    __asm__("" : "=r"(r) : "0"(a));
-#else
-    volatile unsigned int r = a;
-#endif
-    return r;
-}
-
-/* Convenience method for uint32_t. */
-static ossl_inline uint32_t value_barrier_32(uint32_t a)
-{
-#if !defined(OPENSSL_NO_ASM) && defined(__GNUC__)
-    uint32_t r;
-    __asm__("" : "=r"(r) : "0"(a));
-#else
-    volatile uint32_t r = a;
-#endif
-    return r;
-}
-
-/* Convenience method for uint64_t. */
-static ossl_inline uint64_t value_barrier_64(uint64_t a)
-{
-#if !defined(OPENSSL_NO_ASM) && defined(__GNUC__)
-    uint64_t r;
-    __asm__("" : "=r"(r) : "0"(a));
-#else
-    volatile uint64_t r = a;
-#endif
-    return r;
-}
-
-/* Convenience method for size_t. */
-static ossl_inline size_t value_barrier_s(size_t a)
-{
-#if !defined(OPENSSL_NO_ASM) && defined(__GNUC__)
-    size_t r;
-    __asm__("" : "=r"(r) : "0"(a));
-#else
-    volatile size_t r = a;
-#endif
-    return r;
-}
-
-static ossl_inline unsigned int constant_time_select(unsigned int mask,
-                                                     unsigned int a,
-                                                     unsigned int b)
-{
-    return (value_barrier(mask) & a) | (value_barrier(~mask) & b);
-}
-
-static ossl_inline size_t constant_time_select_s(size_t mask,
-                                                 size_t a,
-                                                 size_t b)
-{
-    return (value_barrier_s(mask) & a) | (value_barrier_s(~mask) & b);
-}
-
-static ossl_inline unsigned char constant_time_select_8(unsigned char mask,
-                                                        unsigned char a,
-                                                        unsigned char b)
-{
-    return (unsigned char)constant_time_select(mask, a, b);
-}
-
-static ossl_inline int constant_time_select_int(unsigned int mask, int a,
-                                                int b)
-{
-    return (int)constant_time_select(mask, (unsigned)(a), (unsigned)(b));
-}
-
-static ossl_inline int constant_time_select_int_s(size_t mask, int a, int b)
-{
-    return (int)constant_time_select((unsigned)mask, (unsigned)(a),
-                                      (unsigned)(b));
-}
-
-static ossl_inline uint32_t constant_time_select_32(uint32_t mask, uint32_t a,
-                                                    uint32_t b)
-{
-    return (value_barrier_32(mask) & a) | (value_barrier_32(~mask) & b);
-}
-
-static ossl_inline uint64_t constant_time_select_64(uint64_t mask, uint64_t a,
-                                                    uint64_t b)
-{
-    return (value_barrier_64(mask) & a) | (value_barrier_64(~mask) & b);
-}
-
-/*
- * mask must be 0xFFFFFFFF or 0x00000000.
- *
- * if (mask) {
- *     uint32_t tmp = *a;
- *
- *     *a = *b;
- *     *b = tmp;
- * }
- */
-static ossl_inline void constant_time_cond_swap_32(uint32_t mask, uint32_t *a,
-                                                   uint32_t *b)
-{
-    uint32_t xor = *a ^ *b;
-
-    xor &= mask;
-    *a ^= xor;
-    *b ^= xor;
-}
-
-/*
- * mask must be 0xFFFFFFFF or 0x00000000.
- *
- * if (mask) {
- *     uint64_t tmp = *a;
- *
- *     *a = *b;
- *     *b = tmp;
- * }
- */
-static ossl_inline void constant_time_cond_swap_64(uint64_t mask, uint64_t *a,
-                                                   uint64_t *b)
-{
-    uint64_t xor = *a ^ *b;
-
-    xor &= mask;
-    *a ^= xor;
-    *b ^= xor;
-}
-
-/*
- * mask must be 0xFF or 0x00.
- * "constant time" is per len.
- *
- * if (mask) {
- *     unsigned char tmp[len];
- *
- *     memcpy(tmp, a, len);
- *     memcpy(a, b);
- *     memcpy(b, tmp);
- * }
- */
-static ossl_inline void constant_time_cond_swap_buff(unsigned char mask,
-                                                     unsigned char *a,
-                                                     unsigned char *b,
-                                                     size_t len)
-{
-    size_t i;
-    unsigned char tmp;
-
-    for (i = 0; i < len; i++) {
-        tmp = a[i] ^ b[i];
-        tmp &= mask;
-        a[i] ^= tmp;
-        b[i] ^= tmp;
-    }
-}
-
-/*
- * table is a two dimensional array of bytes. Each row has rowsize elements.
- * Copies row number idx into out. rowsize and numrows are not considered
- * private.
- */
-static ossl_inline void constant_time_lookup(void *out,
-                                             const void *table,
-                                             size_t rowsize,
-                                             size_t numrows,
-                                             size_t idx)
-{
-    size_t i, j;
-    const unsigned char *tablec = (const unsigned char *)table;
-    unsigned char *outc = (unsigned char *)out;
-    unsigned char mask;
-
-    memset(out, 0, rowsize);
-
-    /* Note idx may underflow - but that is well defined */
-    for (i = 0; i < numrows; i++, idx--) {
-        mask = (unsigned char)constant_time_is_zero_s(idx);
-        for (j = 0; j < rowsize; j++)
-            *(outc + j) |= constant_time_select_8(mask, *(tablec++), 0);
-    }
-}
-
-/*
- * Expected usage pattern is to unconditionally set error and then
- * wipe it if there was no actual error. |clear| is 1 or 0.
- */
-void err_clear_last_constant_time(int clear);
-
-#endif                          /* OSSL_INTERNAL_CONSTANT_TIME_H */