mirror of
https://github.com/openssl/openssl.git
synced 2024-11-27 05:21:51 +08:00
2f0ca54c32
- FLAT_INC - PKCS1_CHECK (the SSL_OP_PKCS1_CHECK options have been no-oped) - PKCS_TESTVECT (debugging leftovers) - SSL_AD_MISSING_SRP_USERNAME (unfinished feature) - DTLS_AD_MISSING_HANDSHAKE_MESSAGE (unfinished feature) - USE_OBJ_MAC (note this removes a define from the public header but very unlikely someone would be depending on it) - SSL_FORBID_ENULL Reviewed-by: Rich Salz <rsalz@openssl.org> Reviewed-by: Stephen Henson <steve@openssl.org> Reviewed-by: Andy Polyakov <appro@openssl.org>
348 lines
10 KiB
C
348 lines
10 KiB
C
/*
|
|
* Copyright 1998-2016 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
|
|
*/
|
|
|
|
/* ====================================================================
|
|
* Copyright 2002 Sun Microsystems, Inc. ALL RIGHTS RESERVED.
|
|
* ECDH support in OpenSSL originally developed by
|
|
* SUN MICROSYSTEMS, INC., and contributed to the OpenSSL project.
|
|
*/
|
|
|
|
#include "internal/cryptlib_int.h"
|
|
#include <openssl/safestack.h>
|
|
|
|
#if defined(__i386) || defined(__i386__) || defined(_M_IX86) || \
|
|
defined(__x86_64) || defined(__x86_64__) || \
|
|
defined(_M_AMD64) || defined(_M_X64)
|
|
|
|
extern unsigned int OPENSSL_ia32cap_P[4];
|
|
|
|
# if defined(OPENSSL_CPUID_OBJ) && !defined(OPENSSL_NO_ASM) && !defined(I386_ONLY)
|
|
#include <stdio.h>
|
|
# define OPENSSL_CPUID_SETUP
|
|
typedef uint64_t IA32CAP;
|
|
void OPENSSL_cpuid_setup(void)
|
|
{
|
|
static int trigger = 0;
|
|
IA32CAP OPENSSL_ia32_cpuid(unsigned int *);
|
|
IA32CAP vec;
|
|
char *env;
|
|
|
|
if (trigger)
|
|
return;
|
|
|
|
trigger = 1;
|
|
if ((env = getenv("OPENSSL_ia32cap"))) {
|
|
int off = (env[0] == '~') ? 1 : 0;
|
|
# if defined(_WIN32)
|
|
if (!sscanf(env + off, "%I64i", &vec))
|
|
vec = strtoul(env + off, NULL, 0);
|
|
# else
|
|
if (!sscanf(env + off, "%lli", (long long *)&vec))
|
|
vec = strtoul(env + off, NULL, 0);
|
|
# endif
|
|
if (off)
|
|
vec = OPENSSL_ia32_cpuid(OPENSSL_ia32cap_P) & ~vec;
|
|
else if (env[0] == ':')
|
|
vec = OPENSSL_ia32_cpuid(OPENSSL_ia32cap_P);
|
|
|
|
OPENSSL_ia32cap_P[2] = 0;
|
|
if ((env = strchr(env, ':'))) {
|
|
unsigned int vecx;
|
|
env++;
|
|
off = (env[0] == '~') ? 1 : 0;
|
|
vecx = strtoul(env + off, NULL, 0);
|
|
if (off)
|
|
OPENSSL_ia32cap_P[2] &= ~vecx;
|
|
else
|
|
OPENSSL_ia32cap_P[2] = vecx;
|
|
}
|
|
} else
|
|
vec = OPENSSL_ia32_cpuid(OPENSSL_ia32cap_P);
|
|
|
|
/*
|
|
* |(1<<10) sets a reserved bit to signal that variable
|
|
* was initialized already... This is to avoid interference
|
|
* with cpuid snippets in ELF .init segment.
|
|
*/
|
|
OPENSSL_ia32cap_P[0] = (unsigned int)vec | (1 << 10);
|
|
OPENSSL_ia32cap_P[1] = (unsigned int)(vec >> 32);
|
|
}
|
|
# else
|
|
unsigned int OPENSSL_ia32cap_P[4];
|
|
# endif
|
|
#endif
|
|
int OPENSSL_NONPIC_relocated = 0;
|
|
#if !defined(OPENSSL_CPUID_SETUP) && !defined(OPENSSL_CPUID_OBJ)
|
|
void OPENSSL_cpuid_setup(void)
|
|
{
|
|
}
|
|
#endif
|
|
|
|
#if defined(_WIN32) && !defined(__CYGWIN__)
|
|
# include <tchar.h>
|
|
# include <signal.h>
|
|
# ifdef __WATCOMC__
|
|
# if defined(_UNICODE) || defined(__UNICODE__)
|
|
# define _vsntprintf _vsnwprintf
|
|
# else
|
|
# define _vsntprintf _vsnprintf
|
|
# endif
|
|
# endif
|
|
# ifdef _MSC_VER
|
|
# define alloca _alloca
|
|
# endif
|
|
|
|
# if defined(_WIN32_WINNT) && _WIN32_WINNT>=0x0333
|
|
int OPENSSL_isservice(void)
|
|
{
|
|
HWINSTA h;
|
|
DWORD len;
|
|
WCHAR *name;
|
|
static union {
|
|
void *p;
|
|
FARPROC f;
|
|
} _OPENSSL_isservice = {
|
|
NULL
|
|
};
|
|
|
|
if (_OPENSSL_isservice.p == NULL) {
|
|
HANDLE mod = GetModuleHandle(NULL);
|
|
if (mod != NULL)
|
|
_OPENSSL_isservice.f = GetProcAddress(mod, "_OPENSSL_isservice");
|
|
if (_OPENSSL_isservice.p == NULL)
|
|
_OPENSSL_isservice.p = (void *)-1;
|
|
}
|
|
|
|
if (_OPENSSL_isservice.p != (void *)-1)
|
|
return (*_OPENSSL_isservice.f) ();
|
|
|
|
h = GetProcessWindowStation();
|
|
if (h == NULL)
|
|
return -1;
|
|
|
|
if (GetUserObjectInformationW(h, UOI_NAME, NULL, 0, &len) ||
|
|
GetLastError() != ERROR_INSUFFICIENT_BUFFER)
|
|
return -1;
|
|
|
|
if (len > 512)
|
|
return -1; /* paranoia */
|
|
len++, len &= ~1; /* paranoia */
|
|
name = (WCHAR *)alloca(len + sizeof(WCHAR));
|
|
if (!GetUserObjectInformationW(h, UOI_NAME, name, len, &len))
|
|
return -1;
|
|
|
|
len++, len &= ~1; /* paranoia */
|
|
name[len / sizeof(WCHAR)] = L'\0'; /* paranoia */
|
|
# if 1
|
|
/*
|
|
* This doesn't cover "interactive" services [working with real
|
|
* WinSta0's] nor programs started non-interactively by Task Scheduler
|
|
* [those are working with SAWinSta].
|
|
*/
|
|
if (wcsstr(name, L"Service-0x"))
|
|
return 1;
|
|
# else
|
|
/* This covers all non-interactive programs such as services. */
|
|
if (!wcsstr(name, L"WinSta0"))
|
|
return 1;
|
|
# endif
|
|
else
|
|
return 0;
|
|
}
|
|
# else
|
|
int OPENSSL_isservice(void)
|
|
{
|
|
return 0;
|
|
}
|
|
# endif
|
|
|
|
void OPENSSL_showfatal(const char *fmta, ...)
|
|
{
|
|
va_list ap;
|
|
TCHAR buf[256];
|
|
const TCHAR *fmt;
|
|
/*
|
|
* First check if it's a console application, in which case the
|
|
* error message would be printed to standard error.
|
|
* Windows CE does not have a concept of a console application,
|
|
* so we need to guard the check.
|
|
*/
|
|
# ifdef STD_ERROR_HANDLE
|
|
HANDLE h;
|
|
|
|
if ((h = GetStdHandle(STD_ERROR_HANDLE)) != NULL &&
|
|
GetFileType(h) != FILE_TYPE_UNKNOWN) {
|
|
/* must be console application */
|
|
int len;
|
|
DWORD out;
|
|
|
|
va_start(ap, fmta);
|
|
len = _vsnprintf((char *)buf, sizeof(buf), fmta, ap);
|
|
WriteFile(h, buf, len < 0 ? sizeof(buf) : (DWORD) len, &out, NULL);
|
|
va_end(ap);
|
|
return;
|
|
}
|
|
# endif
|
|
|
|
if (sizeof(TCHAR) == sizeof(char))
|
|
fmt = (const TCHAR *)fmta;
|
|
else
|
|
do {
|
|
int keepgoing;
|
|
size_t len_0 = strlen(fmta) + 1, i;
|
|
WCHAR *fmtw;
|
|
|
|
fmtw = (WCHAR *)alloca(len_0 * sizeof(WCHAR));
|
|
if (fmtw == NULL) {
|
|
fmt = (const TCHAR *)L"no stack?";
|
|
break;
|
|
}
|
|
if (!MultiByteToWideChar(CP_ACP, 0, fmta, len_0, fmtw, len_0))
|
|
for (i = 0; i < len_0; i++)
|
|
fmtw[i] = (WCHAR)fmta[i];
|
|
for (i = 0; i < len_0; i++) {
|
|
if (fmtw[i] == L'%')
|
|
do {
|
|
keepgoing = 0;
|
|
switch (fmtw[i + 1]) {
|
|
case L'0':
|
|
case L'1':
|
|
case L'2':
|
|
case L'3':
|
|
case L'4':
|
|
case L'5':
|
|
case L'6':
|
|
case L'7':
|
|
case L'8':
|
|
case L'9':
|
|
case L'.':
|
|
case L'*':
|
|
case L'-':
|
|
i++;
|
|
keepgoing = 1;
|
|
break;
|
|
case L's':
|
|
fmtw[i + 1] = L'S';
|
|
break;
|
|
case L'S':
|
|
fmtw[i + 1] = L's';
|
|
break;
|
|
case L'c':
|
|
fmtw[i + 1] = L'C';
|
|
break;
|
|
case L'C':
|
|
fmtw[i + 1] = L'c';
|
|
break;
|
|
}
|
|
} while (keepgoing);
|
|
}
|
|
fmt = (const TCHAR *)fmtw;
|
|
} while (0);
|
|
|
|
va_start(ap, fmta);
|
|
_vsntprintf(buf, OSSL_NELEM(buf) - 1, fmt, ap);
|
|
buf[OSSL_NELEM(buf) - 1] = _T('\0');
|
|
va_end(ap);
|
|
|
|
# if defined(_WIN32_WINNT) && _WIN32_WINNT>=0x0333
|
|
/* this -------------v--- guards NT-specific calls */
|
|
if (check_winnt() && OPENSSL_isservice() > 0) {
|
|
HANDLE hEventLog = RegisterEventSource(NULL, _T("OpenSSL"));
|
|
|
|
if (hEventLog != NULL) {
|
|
const TCHAR *pmsg = buf;
|
|
|
|
if (!ReportEvent(hEventLog, EVENTLOG_ERROR_TYPE, 0, 0, NULL,
|
|
1, 0, &pmsg, NULL)) {
|
|
#if defined(DEBUG)
|
|
/*
|
|
* We are in a situation where we tried to report a critical
|
|
* error and this failed for some reason. As a last resort,
|
|
* in debug builds, send output to the debugger or any other
|
|
* tool like DebugView which can monitor the output.
|
|
*/
|
|
OutputDebugString(pmsg);
|
|
#endif
|
|
}
|
|
|
|
(void)DeregisterEventSource(hEventLog);
|
|
}
|
|
} else
|
|
# endif
|
|
MessageBox(NULL, buf, _T("OpenSSL: FATAL"), MB_OK | MB_ICONERROR);
|
|
}
|
|
#else
|
|
void OPENSSL_showfatal(const char *fmta, ...)
|
|
{
|
|
#ifndef OPENSSL_NO_STDIO
|
|
va_list ap;
|
|
|
|
va_start(ap, fmta);
|
|
vfprintf(stderr, fmta, ap);
|
|
va_end(ap);
|
|
#endif
|
|
}
|
|
|
|
int OPENSSL_isservice(void)
|
|
{
|
|
return 0;
|
|
}
|
|
#endif
|
|
|
|
void OPENSSL_die(const char *message, const char *file, int line)
|
|
{
|
|
OPENSSL_showfatal("%s:%d: OpenSSL internal error: %s\n",
|
|
file, line, message);
|
|
#if !defined(_WIN32) || defined(__CYGWIN__)
|
|
abort();
|
|
#else
|
|
/*
|
|
* Win32 abort() customarily shows a dialog, but we just did that...
|
|
*/
|
|
# if !defined(_WIN32_WCE)
|
|
raise(SIGABRT);
|
|
# endif
|
|
_exit(3);
|
|
#endif
|
|
}
|
|
|
|
#if !defined(OPENSSL_CPUID_OBJ)
|
|
/* volatile unsigned char* pointers are there because
|
|
* 1. Accessing a variable declared volatile via a pointer
|
|
* that lacks a volatile qualifier causes undefined behavior.
|
|
* 2. When the variable itself is not volatile the compiler is
|
|
* not required to keep all those reads and can convert
|
|
* this into canonical memcmp() which doesn't read the whole block.
|
|
* Pointers to volatile resolve the first problem fully. The second
|
|
* problem cannot be resolved in any Standard-compliant way but this
|
|
* works the problem around. Compilers typically react to
|
|
* pointers to volatile by preserving the reads and writes through them.
|
|
* The latter is not required by the Standard if the memory pointed to
|
|
* is not volatile.
|
|
* Pointers themselves are volatile in the function signature to work
|
|
* around a subtle bug in gcc 4.6+ which causes writes through
|
|
* pointers to volatile to not be emitted in some rare,
|
|
* never needed in real life, pieces of code.
|
|
*/
|
|
int CRYPTO_memcmp(const volatile void * volatile in_a,
|
|
const volatile void * volatile in_b,
|
|
size_t len)
|
|
{
|
|
size_t i;
|
|
const volatile unsigned char *a = in_a;
|
|
const volatile unsigned char *b = in_b;
|
|
unsigned char x = 0;
|
|
|
|
for (i = 0; i < len; i++)
|
|
x |= a[i] ^ b[i];
|
|
|
|
return x;
|
|
}
|
|
#endif
|