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ERR: Move ERR_set_mark(), ERR_pop_to_mark() and ERR_clear_last_mark() 

Move them to their own source file, so they end up in a separate
object file.  This allows providers to override their implementation
to use the corresponding OSSL_FUNC upcalls without having to
reimplement everything from crypto/err/err.c.

Reviewed-by: Paul Dale <pauli@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/17474)
This commit is contained in:
Richard Levitte 2022-01-11 18:27:23 +01:00
parent f59d72f027
commit fbe88706a4
3 changed files with 70 additions and 56 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
crypto/err/build.info
View File

@ -1,3 +1,3 @@
LIBS=../../libcrypto
SOURCE[../../libcrypto]=\
err_blocks.c err.c err_all.c err_all_legacy.c err_prn.c
err_blocks.c err_mark.c err.c err_all.c err_all_legacy.c err_prn.c

55
crypto/err/err.c
View File

@ -847,61 +847,6 @@ void ERR_add_error_vdata(int num, va_list args)
OPENSSL_free(str);
}
int ERR_set_mark(void)
{
ERR_STATE *es;
es = ossl_err_get_state_int();
if (es == NULL)
return 0;
if (es->bottom == es->top)
return 0;
es->err_marks[es->top]++;
return 1;
}
int ERR_pop_to_mark(void)
{
ERR_STATE *es;
es = ossl_err_get_state_int();
if (es == NULL)
return 0;
while (es->bottom != es->top
&& es->err_marks[es->top] == 0) {
err_clear(es, es->top, 0);
es->top = es->top > 0 ? es->top - 1 : ERR_NUM_ERRORS - 1;
}
if (es->bottom == es->top)
return 0;
es->err_marks[es->top]--;
return 1;
}
int ERR_clear_last_mark(void)
{
ERR_STATE *es;
int top;
es = ossl_err_get_state_int();
if (es == NULL)
return 0;
top = es->top;
while (es->bottom != top
&& es->err_marks[top] == 0) {
top = top > 0 ? top - 1 : ERR_NUM_ERRORS - 1;
}
if (es->bottom == top)
return 0;
es->err_marks[top]--;
return 1;
}
void err_clear_last_constant_time(int clear)
{
ERR_STATE *es;

69
crypto/err/err_mark.c Normal file
View File

@ -0,0 +1,69 @@
/*
* Copyright 2003-2022 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
*/
#define OSSL_FORCE_ERR_STATE
#include <openssl/err.h>
#include "err_local.h"
int ERR_set_mark(void)
{
ERR_STATE *es;
es = ossl_err_get_state_int();
if (es == NULL)
return 0;
if (es->bottom == es->top)
return 0;
es->err_marks[es->top]++;
return 1;
}
int ERR_pop_to_mark(void)
{
ERR_STATE *es;
es = ossl_err_get_state_int();
if (es == NULL)
return 0;
while (es->bottom != es->top
&& es->err_marks[es->top] == 0) {
err_clear(es, es->top, 0);
es->top = es->top > 0 ? es->top - 1 : ERR_NUM_ERRORS - 1;
}
if (es->bottom == es->top)
return 0;
es->err_marks[es->top]--;
return 1;
}
int ERR_clear_last_mark(void)
{
ERR_STATE *es;
int top;
es = ossl_err_get_state_int();
if (es == NULL)
return 0;
top = es->top;
while (es->bottom != top
&& es->err_marks[top] == 0) {
top = top > 0 ? top - 1 : ERR_NUM_ERRORS - 1;
}
if (es->bottom == top)
return 0;
es->err_marks[top]--;
return 1;
}