1 files changed, 323 insertions, 0 deletions
diff --git a/roms/edk2/CryptoPkg/Library/OpensslLib/openssl/crypto/mem.c b/roms/edk2/CryptoPkg/Library/OpensslLib/openssl/crypto/mem.c
new file mode 100644
index 000000000..2b39ca3a1
--- /dev/null
+++ b/roms/edk2/CryptoPkg/Library/OpensslLib/openssl/crypto/mem.c
@@ -0,0 +1,323 @@
+/*
+ * Copyright 1995-2018 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 "e_os.h"
+#include "internal/cryptlib.h"
+#include "crypto/cryptlib.h"
+#include <stdio.h>
+#include <stdlib.h>
+#include <limits.h>
+#include <openssl/crypto.h>
+#ifndef OPENSSL_NO_CRYPTO_MDEBUG_BACKTRACE
+# include <execinfo.h>
+#endif
+
+/*
+ * the following pointers may be changed as long as 'allow_customize' is set
+ */
+static int allow_customize = 1;
+
+static void *(*malloc_impl)(size_t, const char *, int)
+    = CRYPTO_malloc;
+static void *(*realloc_impl)(void *, size_t, const char *, int)
+    = CRYPTO_realloc;
+static void (*free_impl)(void *, const char *, int)
+    = CRYPTO_free;
+
+#ifndef OPENSSL_NO_CRYPTO_MDEBUG
+# include "internal/tsan_assist.h"
+
+static TSAN_QUALIFIER int malloc_count;
+static TSAN_QUALIFIER int realloc_count;
+static TSAN_QUALIFIER int free_count;
+
+# define INCREMENT(x) tsan_counter(&(x))
+
+static char *md_failstring;
+static long md_count;
+static int md_fail_percent = 0;
+static int md_tracefd = -1;
+static int call_malloc_debug = 1;
+
+static void parseit(void);
+static int shouldfail(void);
+
+# define FAILTEST() if (shouldfail()) return NULL
+
+#else
+static int call_malloc_debug = 0;
+
+# define INCREMENT(x) /* empty */
+# define FAILTEST() /* empty */
+#endif
+
+int CRYPTO_set_mem_functions(
+        void *(*m)(size_t, const char *, int),
+        void *(*r)(void *, size_t, const char *, int),
+        void (*f)(void *, const char *, int))
+{
+    if (!allow_customize)
+        return 0;
+    if (m)
+        malloc_impl = m;
+    if (r)
+        realloc_impl = r;
+    if (f)
+        free_impl = f;
+    return 1;
+}
+
+int CRYPTO_set_mem_debug(int flag)
+{
+    if (!allow_customize)
+        return 0;
+    call_malloc_debug = flag;
+    return 1;
+}
+
+void CRYPTO_get_mem_functions(
+        void *(**m)(size_t, const char *, int),
+        void *(**r)(void *, size_t, const char *, int),
+        void (**f)(void *, const char *, int))
+{
+    if (m != NULL)
+        *m = malloc_impl;
+    if (r != NULL)
+        *r = realloc_impl;
+    if (f != NULL)
+        *f = free_impl;
+}
+
+#ifndef OPENSSL_NO_CRYPTO_MDEBUG
+void CRYPTO_get_alloc_counts(int *mcount, int *rcount, int *fcount)
+{
+    if (mcount != NULL)
+        *mcount = tsan_load(&malloc_count);
+    if (rcount != NULL)
+        *rcount = tsan_load(&realloc_count);
+    if (fcount != NULL)
+        *fcount = tsan_load(&free_count);
+}
+
+/*
+ * Parse a "malloc failure spec" string.  This likes like a set of fields
+ * separated by semicolons.  Each field has a count and an optional failure
+ * percentage.  For example:
+ *          100@0;100@25;0@0
+ *    or    100;100@25;0
+ * This means 100 mallocs succeed, then next 100 fail 25% of the time, and
+ * all remaining (count is zero) succeed.
+ */
+static void parseit(void)
+{
+    char *semi = strchr(md_failstring, ';');
+    char *atsign;
+
+    if (semi != NULL)
+        *semi++ = '\0';
+
+    /* Get the count (atol will stop at the @ if there), and percentage */
+    md_count = atol(md_failstring);
+    atsign = strchr(md_failstring, '@');
+    md_fail_percent = atsign == NULL ? 0 : atoi(atsign + 1);
+
+    if (semi != NULL)
+        md_failstring = semi;
+}
+
+/*
+ * Windows doesn't have random(), but it has rand()
+ * Some rand() implementations aren't good, but we're not
+ * dealing with secure randomness here.
+ */
+# ifdef _WIN32
+#  define random() rand()
+# endif
+/*
+ * See if the current malloc should fail.
+ */
+static int shouldfail(void)
+{
+    int roll = (int)(random() % 100);
+    int shoulditfail = roll < md_fail_percent;
+# ifndef _WIN32
+/* suppressed on Windows as POSIX-like file descriptors are non-inheritable */
+    int len;
+    char buff[80];
+
+    if (md_tracefd > 0) {
+        BIO_snprintf(buff, sizeof(buff),
+                     "%c C%ld %%%d R%d\n",
+                     shoulditfail ? '-' : '+', md_count, md_fail_percent, roll);
+        len = strlen(buff);
+        if (write(md_tracefd, buff, len) != len)
+            perror("shouldfail write failed");
+#  ifndef OPENSSL_NO_CRYPTO_MDEBUG_BACKTRACE
+        if (shoulditfail) {
+            void *addrs[30];
+            int num = backtrace(addrs, OSSL_NELEM(addrs));
+
+            backtrace_symbols_fd(addrs, num, md_tracefd);
+        }
+#  endif
+    }
+# endif
+
+    if (md_count) {
+        /* If we used up this one, go to the next. */
+        if (--md_count == 0)
+            parseit();
+    }
+
+    return shoulditfail;
+}
+
+void ossl_malloc_setup_failures(void)
+{
+    const char *cp = getenv("OPENSSL_MALLOC_FAILURES");
+
+    if (cp != NULL && (md_failstring = strdup(cp)) != NULL)
+        parseit();
+    if ((cp = getenv("OPENSSL_MALLOC_FD")) != NULL)
+        md_tracefd = atoi(cp);
+}
+#endif
+
+void *CRYPTO_malloc(size_t num, const char *file, int line)
+{
+    void *ret = NULL;
+
+    INCREMENT(malloc_count);
+    if (malloc_impl != NULL && malloc_impl != CRYPTO_malloc)
+        return malloc_impl(num, file, line);
+
+    if (num == 0)
+        return NULL;
+
+    FAILTEST();
+    if (allow_customize) {
+        /*
+         * Disallow customization after the first allocation. We only set this
+         * if necessary to avoid a store to the same cache line on every
+         * allocation.
+         */
+        allow_customize = 0;
+    }
+#ifndef OPENSSL_NO_CRYPTO_MDEBUG
+    if (call_malloc_debug) {
+        CRYPTO_mem_debug_malloc(NULL, num, 0, file, line);
+        ret = malloc(num);
+        CRYPTO_mem_debug_malloc(ret, num, 1, file, line);
+    } else {
+        ret = malloc(num);
+    }
+#else
+    (void)(file); (void)(line);
+    ret = malloc(num);
+#endif
+
+    return ret;
+}
+
+void *CRYPTO_zalloc(size_t num, const char *file, int line)
+{
+    void *ret = CRYPTO_malloc(num, file, line);
+
+    FAILTEST();
+    if (ret != NULL)
+        memset(ret, 0, num);
+    return ret;
+}
+
+void *CRYPTO_realloc(void *str, size_t num, const char *file, int line)
+{
+    INCREMENT(realloc_count);
+    if (realloc_impl != NULL && realloc_impl != &CRYPTO_realloc)
+        return realloc_impl(str, num, file, line);
+
+    FAILTEST();
+    if (str == NULL)
+        return CRYPTO_malloc(num, file, line);
+
+    if (num == 0) {
+        CRYPTO_free(str, file, line);
+        return NULL;
+    }
+
+#ifndef OPENSSL_NO_CRYPTO_MDEBUG
+    if (call_malloc_debug) {
+        void *ret;
+        CRYPTO_mem_debug_realloc(str, NULL, num, 0, file, line);
+        ret = realloc(str, num);
+        CRYPTO_mem_debug_realloc(str, ret, num, 1, file, line);
+        return ret;
+    }
+#else
+    (void)(file); (void)(line);
+#endif
+    return realloc(str, num);
+
+}
+
+void *CRYPTO_clear_realloc(void *str, size_t old_len, size_t num,
+                           const char *file, int line)
+{
+    void *ret = NULL;
+
+    if (str == NULL)
+        return CRYPTO_malloc(num, file, line);
+
+    if (num == 0) {
+        CRYPTO_clear_free(str, old_len, file, line);
+        return NULL;
+    }
+
+    /* Can't shrink the buffer since memcpy below copies |old_len| bytes. */
+    if (num < old_len) {
+        OPENSSL_cleanse((char*)str + num, old_len - num);
+        return str;
+    }
+
+    ret = CRYPTO_malloc(num, file, line);
+    if (ret != NULL) {
+        memcpy(ret, str, old_len);
+        CRYPTO_clear_free(str, old_len, file, line);
+    }
+    return ret;
+}
+
+void CRYPTO_free(void *str, const char *file, int line)
+{
+    INCREMENT(free_count);
+    if (free_impl != NULL && free_impl != &CRYPTO_free) {
+        free_impl(str, file, line);
+        return;
+    }
+
+#ifndef OPENSSL_NO_CRYPTO_MDEBUG
+    if (call_malloc_debug) {
+        CRYPTO_mem_debug_free(str, 0, file, line);
+        free(str);
+        CRYPTO_mem_debug_free(str, 1, file, line);
+    } else {
+        free(str);
+    }
+#else
+    free(str);
+#endif
+}
+
+void CRYPTO_clear_free(void *str, size_t num, const char *file, int line)
+{
+    if (str == NULL)
+        return;
+    if (num)
+        OPENSSL_cleanse(str, num);
+    CRYPTO_free(str, file, line);
+}