CORE: query for operations only once per provider (unless no_store is true)

[openssl.git] / crypto / mem.c

diff --git a/crypto/mem.c b/crypto/mem.c
index f5e8f2445ae69a507aa653f33766da71e5cef2e4..d682a3686f47df628a11511522df756d71c47053 100644 (file)
--- a/crypto/mem.c
+++ b/crypto/mem.c
@@ -1,5 +1,5 @@
 /*
- * Copyright 1995-2018 The OpenSSL Project Authors. All Rights Reserved.
+ * Copyright 1995-2020 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
@@ -19,15 +19,11 @@
  * the following pointers may be changed as long as 'allow_customize' is set
  */
 static int allow_customize = 1;
+static CRYPTO_malloc_fn malloc_impl = CRYPTO_malloc;
+static CRYPTO_realloc_fn realloc_impl = CRYPTO_realloc;
+static CRYPTO_free_fn free_impl = CRYPTO_free;
 
-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;
-
-#if !defined(OPENSSL_NO_CRYPTO_MDEBUG) && !defined(FIPS_MODE)
+#if !defined(OPENSSL_NO_CRYPTO_MDEBUG) && !defined(FIPS_MODULE)
 # include "internal/tsan_assist.h"
 
 static TSAN_QUALIFIER int malloc_count;
@@ -52,36 +48,34 @@ static int shouldfail(void);
 # 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))
+int CRYPTO_set_mem_functions(CRYPTO_malloc_fn malloc_fn,
+                             CRYPTO_realloc_fn realloc_fn,
+                             CRYPTO_free_fn free_fn)
 {
     if (!allow_customize)
         return 0;
-    if (m)
-        malloc_impl = m;
-    if (r)
-        realloc_impl = r;
-    if (f)
-        free_impl = f;
+    if (malloc_fn != NULL)
+        malloc_impl = malloc_fn;
+    if (realloc_fn != NULL)
+        realloc_impl = realloc_fn;
+    if (free_fn != NULL)
+        free_impl = free_fn;
     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))
+void CRYPTO_get_mem_functions(CRYPTO_malloc_fn *malloc_fn,
+                              CRYPTO_realloc_fn *realloc_fn,
+                              CRYPTO_free_fn *free_fn)
 {
-    if (m != NULL)
-        *m = malloc_impl;
-    if (r != NULL)
-        *r = realloc_impl;
-    if (f != NULL)
-        *f = free_impl;
+    if (malloc_fn != NULL)
+        *malloc_fn = malloc_impl;
+    if (realloc_fn != NULL)
+        *realloc_fn = realloc_impl;
+    if (free_fn != NULL)
+        *free_fn = free_impl;
 }
 
-#if !defined(OPENSSL_NO_CRYPTO_MDEBUG) && !defined(FIPS_MODE)
+#if !defined(OPENSSL_NO_CRYPTO_MDEBUG) && !defined(FIPS_MODULE)
 void CRYPTO_get_alloc_counts(int *mcount, int *rcount, int *fcount)
 {
     if (mcount != NULL)
@@ -145,14 +139,6 @@ static int shouldfail(void)
         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
 
@@ -178,10 +164,8 @@ void ossl_malloc_setup_failures(void)
 
 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)
+    if (malloc_impl != CRYPTO_malloc)
         return malloc_impl(num, file, line);
 
     if (num == 0)
@@ -196,26 +180,26 @@ void *CRYPTO_malloc(size_t num, const char *file, int line)
          */
         allow_customize = 0;
     }
-    (void)(file); (void)(line);
-    ret = malloc(num);
 
-    return ret;
+    return malloc(num);
 }
 
 void *CRYPTO_zalloc(size_t num, const char *file, int line)
 {
-    void *ret = CRYPTO_malloc(num, file, line);
+    void *ret;
 
+    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)
+    if (realloc_impl != CRYPTO_realloc)
         return realloc_impl(str, num, file, line);
 
     FAILTEST();
@@ -227,9 +211,7 @@ void *CRYPTO_realloc(void *str, size_t num, const char *file, int line)
         return NULL;
     }
 
-    (void)(file); (void)(line);
     return realloc(str, num);
-
 }
 
 void *CRYPTO_clear_realloc(void *str, size_t old_len, size_t num,
@@ -262,7 +244,7 @@ void *CRYPTO_clear_realloc(void *str, size_t old_len, size_t num,
 void CRYPTO_free(void *str, const char *file, int line)
 {
     INCREMENT(free_count);
-    if (free_impl != NULL && free_impl != &CRYPTO_free) {
+    if (free_impl != CRYPTO_free) {
         free_impl(str, file, line);
         return;
     }
@@ -305,6 +287,24 @@ int CRYPTO_mem_debug_pop(void)
     return -1;
 }
 
+void CRYPTO_mem_debug_malloc(void *addr, size_t num, int flag,
+                             const char *file, int line)
+{
+    (void)addr; (void)num; (void)flag; (void)file; (void)line;
+}
+
+void CRYPTO_mem_debug_realloc(void *addr1, void *addr2, size_t num, int flag,
+                              const char *file, int line)
+{
+    (void)addr1; (void)addr2; (void)num; (void)flag; (void)file; (void)line;
+}
+
+void CRYPTO_mem_debug_free(void *addr, int flag,
+                           const char *file, int line)
+{
+    (void)addr; (void)flag; (void)file; (void)line;
+}
+
 int CRYPTO_mem_leaks(BIO *b)
 {
     (void)b;