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-rw-r--r--CryptoPkg/Library/BaseCryptLib/SmmCryptLib.inf11
-rw-r--r--CryptoPkg/Library/BaseCryptLib/SysCall/ConstantTimeClock.c41
-rw-r--r--CryptoPkg/Library/BaseCryptLib/SysCall/RealTimeClock.c286
3 files changed, 51 insertions, 287 deletions
diff --git a/CryptoPkg/Library/BaseCryptLib/SmmCryptLib.inf b/CryptoPkg/Library/BaseCryptLib/SmmCryptLib.inf
index 03ed82f687..f7bccc4379 100644
--- a/CryptoPkg/Library/BaseCryptLib/SmmCryptLib.inf
+++ b/CryptoPkg/Library/BaseCryptLib/SmmCryptLib.inf
@@ -1,6 +1,15 @@
## @file
# Cryptographic Library Instance for SMM driver.
#
+# This library instance uses ConstantTimeClock.c thus does not provide
+# functionality for following APIs which need system time support:
+# 1) RsaGenerateKey
+# 2) RsaCheckKey
+# 3) RsaPkcs1Sign
+# 4) Pkcs7Sign
+# 5) DhGenerateParameter
+# 6) DhGenerateKey
+#
# Copyright (c) 2010 - 2012, Intel Corporation. All rights reserved.<BR>
# This program and the accompanying materials
# are licensed and made available under the terms and conditions of the BSD License
@@ -37,7 +46,7 @@
Pem/CryptPem.c
SysCall/CrtWrapper.c
- SysCall/RealTimeClock.c
+ SysCall/ConstantTimeClock.c
SysCall/BaseMemAllocation.c
[Sources.Ia32]
diff --git a/CryptoPkg/Library/BaseCryptLib/SysCall/ConstantTimeClock.c b/CryptoPkg/Library/BaseCryptLib/SysCall/ConstantTimeClock.c
new file mode 100644
index 0000000000..0a19a69533
--- /dev/null
+++ b/CryptoPkg/Library/BaseCryptLib/SysCall/ConstantTimeClock.c
@@ -0,0 +1,41 @@
+/** @file
+ C Run-Time Libraries (CRT) Time Management Routines Wrapper Implementation
+ for OpenSSL-based Cryptographic Library.
+
+ This C file implements constant time value for time() and NULL for gmtime()
+ thus should not be used in library instances which require functionality
+ of following APIs which need system time support:
+ 1) RsaGenerateKey
+ 2) RsaCheckKey
+ 3) RsaPkcs1Sign
+ 4) Pkcs7Sign
+ 5) DhGenerateParameter
+ 6) DhGenerateKey
+
+Copyright (c) 2010 - 2012, Intel Corporation. All rights reserved.<BR>
+This program and the accompanying materials
+are licensed and made available under the terms and conditions of the BSD License
+which accompanies this distribution. The full text of the license may be found at
+http://opensource.org/licenses/bsd-license.php
+
+THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
+WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
+
+**/
+
+#include <OpenSslSupport.h>
+
+//
+// -- Time Management Routines --
+//
+
+time_t time (time_t *timer)
+{
+ *timer = 0;
+ return *timer;
+}
+
+struct tm * gmtime (const time_t *timer)
+{
+ return NULL;
+} \ No newline at end of file
diff --git a/CryptoPkg/Library/BaseCryptLib/SysCall/RealTimeClock.c b/CryptoPkg/Library/BaseCryptLib/SysCall/RealTimeClock.c
deleted file mode 100644
index 7601c544b5..0000000000
--- a/CryptoPkg/Library/BaseCryptLib/SysCall/RealTimeClock.c
+++ /dev/null
@@ -1,286 +0,0 @@
-/** @file
- C Run-Time Libraries (CRT) Time Management Routines Wrapper Implementation
- for OpenSSL-based Cryptographic Library (used in SMM).
-
-Copyright (c) 2010 - 2011, Intel Corporation. All rights reserved.<BR>
-This program and the accompanying materials
-are licensed and made available under the terms and conditions of the BSD License
-which accompanies this distribution. The full text of the license may be found at
-http://opensource.org/licenses/bsd-license.php
-
-THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
-WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
-
-**/
-
-#include <Library/BaseLib.h>
-#include <Library/IoLib.h>
-#include <OpenSslSupport.h>
-
-#define PCAT_RTC_ADDRESS_REGISTER 0x70
-#define PCAT_RTC_DATA_REGISTER 0x71
-
-#define RTC_ADDRESS_SECONDS 0 // R/W Range 0..59
-#define RTC_ADDRESS_SECONDS_ALARM 1 // R/W Range 0..59
-#define RTC_ADDRESS_MINUTES 2 // R/W Range 0..59
-#define RTC_ADDRESS_MINUTES_ALARM 3 // R/W Range 0..59
-#define RTC_ADDRESS_HOURS 4 // R/W Range 1..12 or 0..23 Bit 7 is AM/PM
-#define RTC_ADDRESS_HOURS_ALARM 5 // R/W Range 1..12 or 0..23 Bit 7 is AM/PM
-#define RTC_ADDRESS_DAY_OF_THE_WEEK 6 // R/W Range 1..7
-#define RTC_ADDRESS_DAY_OF_THE_MONTH 7 // R/W Range 1..31
-#define RTC_ADDRESS_MONTH 8 // R/W Range 1..12
-#define RTC_ADDRESS_YEAR 9 // R/W Range 0..99
-#define RTC_ADDRESS_REGISTER_A 10 // R/W[0..6] R0[7]
-#define RTC_ADDRESS_REGISTER_B 11 // R/W
-#define RTC_ADDRESS_REGISTER_C 12 // RO
-#define RTC_ADDRESS_REGISTER_D 13 // RO
-#define RTC_ADDRESS_CENTURY 50 // R/W Range 19..20 Bit 8 is R/W
-
-//
-// Register A
-//
-typedef struct {
- UINT8 RS : 4; // Rate Selection Bits
- UINT8 DV : 3; // Divisor
- UINT8 UIP : 1; // Update in progress
-} RTC_REGISTER_A_BITS;
-
-typedef union {
- RTC_REGISTER_A_BITS Bits;
- UINT8 Data;
-} RTC_REGISTER_A;
-
-//
-// Register B
-//
-typedef struct {
- UINT8 DSE : 1; // 0 - Daylight saving disabled 1 - Daylight savings enabled
- UINT8 MIL : 1; // 0 - 12 hour mode 1 - 24 hour mode
- UINT8 DM : 1; // 0 - BCD Format 1 - Binary Format
- UINT8 SQWE : 1; // 0 - Disable SQWE output 1 - Enable SQWE output
- UINT8 UIE : 1; // 0 - Update INT disabled 1 - Update INT enabled
- UINT8 AIE : 1; // 0 - Alarm INT disabled 1 - Alarm INT Enabled
- UINT8 PIE : 1; // 0 - Periodic INT disabled 1 - Periodic INT Enabled
- UINT8 SET : 1; // 0 - Normal operation. 1 - Updates inhibited
-} RTC_REGISTER_B_BITS;
-
-typedef union {
- RTC_REGISTER_B_BITS Bits;
- UINT8 Data;
-} RTC_REGISTER_B;
-
-//
-// -- Time Management Routines --
-//
-
-#define IsLeap(y) (((y) % 4) == 0 && (((y) % 100) != 0 || ((y) % 400) == 0))
-#define SECSPERMIN (60)
-#define SECSPERHOUR (60 * 60)
-#define SECSPERDAY (24 * SECSPERHOUR)
-
-//
-// The arrays give the cumulative number of days up to the first of the
-// month number used as the index (1 -> 12) for regular and leap years.
-// The value at index 13 is for the whole year.
-//
-UINTN CumulativeDays[2][14] = {
- {
- 0,
- 0,
- 31,
- 31 + 28,
- 31 + 28 + 31,
- 31 + 28 + 31 + 30,
- 31 + 28 + 31 + 30 + 31,
- 31 + 28 + 31 + 30 + 31 + 30,
- 31 + 28 + 31 + 30 + 31 + 30 + 31,
- 31 + 28 + 31 + 30 + 31 + 30 + 31 + 31,
- 31 + 28 + 31 + 30 + 31 + 30 + 31 + 31 + 30,
- 31 + 28 + 31 + 30 + 31 + 30 + 31 + 31 + 30 + 31,
- 31 + 28 + 31 + 30 + 31 + 30 + 31 + 31 + 30 + 31 + 30,
- 31 + 28 + 31 + 30 + 31 + 30 + 31 + 31 + 30 + 31 + 30 + 31
- },
- {
- 0,
- 0,
- 31,
- 31 + 29,
- 31 + 29 + 31,
- 31 + 29 + 31 + 30,
- 31 + 29 + 31 + 30 + 31,
- 31 + 29 + 31 + 30 + 31 + 30,
- 31 + 29 + 31 + 30 + 31 + 30 + 31,
- 31 + 29 + 31 + 30 + 31 + 30 + 31 + 31,
- 31 + 29 + 31 + 30 + 31 + 30 + 31 + 31 + 30,
- 31 + 29 + 31 + 30 + 31 + 30 + 31 + 31 + 30 + 31,
- 31 + 29 + 31 + 30 + 31 + 30 + 31 + 31 + 30 + 31 + 30,
- 31 + 29 + 31 + 30 + 31 + 30 + 31 + 31 + 30 + 31 + 30 + 31
- }
-};
-
-/**
- Read RTC content through its registers.
-
- @param Address Address offset of RTC. It is recommended to use macros such as
- RTC_ADDRESS_SECONDS.
-
- @return The data of UINT8 type read from RTC.
-**/
-UINT8
-RtcRead (
- IN UINT8 Address
- )
-{
- IoWrite8 (PCAT_RTC_ADDRESS_REGISTER, (UINT8) (Address | (UINT8) (IoRead8 (PCAT_RTC_ADDRESS_REGISTER) & BIT7)));
- return IoRead8 (PCAT_RTC_DATA_REGISTER);
-}
-
-/* Get the system time as seconds elapsed since midnight, January 1, 1970. */
-//INTN time(
-// INTN *timer
-// )
-time_t time (time_t *timer)
-{
- UINT16 Year;
- UINT8 Month;
- UINT8 Day;
- UINT8 Hour;
- UINT8 Minute;
- UINT8 Second;
- UINT8 Century;
- RTC_REGISTER_A RegisterA;
- RTC_REGISTER_B RegisterB;
- BOOLEAN IsPM;
- UINT16 YearIndex;
-
- RegisterA.Data = RtcRead (RTC_ADDRESS_REGISTER_A);
- while (RegisterA.Bits.UIP == 1) {
- CpuPause();
- RegisterA.Data = RtcRead (RTC_ADDRESS_REGISTER_A);
- }
-
- Second = RtcRead (RTC_ADDRESS_SECONDS);
- Minute = RtcRead (RTC_ADDRESS_MINUTES);
- Hour = RtcRead (RTC_ADDRESS_HOURS);
- Day = RtcRead (RTC_ADDRESS_DAY_OF_THE_MONTH);
- Month = RtcRead (RTC_ADDRESS_MONTH);
- Year = RtcRead (RTC_ADDRESS_YEAR);
- Century = RtcRead (RTC_ADDRESS_CENTURY);
-
- RegisterB.Data = RtcRead (RTC_ADDRESS_REGISTER_B);
-
- if ((Hour & BIT7) != 0) {
- IsPM = TRUE;
- } else {
- IsPM = FALSE;
- }
- Hour = (UINT8) (Hour & 0x7f);
-
- if (RegisterB.Bits.DM == 0) {
- Year = BcdToDecimal8 ((UINT8) Year);
- Month = BcdToDecimal8 (Month);
- Day = BcdToDecimal8 (Day);
- Hour = BcdToDecimal8 (Hour);
- Minute = BcdToDecimal8 (Minute);
- Second = BcdToDecimal8 (Second);
- }
- Century = BcdToDecimal8 (Century);
-
- Year = (UINT16) (Century * 100 + Year);
-
- //
- // If time is in 12 hour format, convert it to 24 hour format
- //
- if (RegisterB.Bits.MIL == 0) {
- if (IsPM && Hour < 12) {
- Hour = (UINT8) (Hour + 12);
- }
- if (!IsPM && Hour == 12) {
- Hour = 0;
- }
- }
-
- //
- // Years Handling
- // UTime should now be set to 00:00:00 on Jan 1 of the current year.
- //
- for (YearIndex = 1970, *timer = 0; YearIndex != Year; YearIndex++) {
- *timer = *timer + (time_t)(CumulativeDays[IsLeap(YearIndex)][13] * SECSPERDAY);
- }
-
- //
- // Add in number of seconds for current Month, Day, Hour, Minute, Seconds, and TimeZone adjustment
- //
- ASSERT (Month <= 12);
- *timer = *timer +
- (time_t)(CumulativeDays[IsLeap(Year)][Month] * SECSPERDAY) +
- (time_t)((Day - 1) * SECSPERDAY) +
- (time_t)(Hour * SECSPERHOUR) +
- (time_t)(Minute * 60) +
- (time_t)Second;
-
- return *timer;
-}
-
-//
-// Convert a time value from type time_t to struct tm.
-//
-struct tm * gmtime (const time_t *timer)
-{
- struct tm *GmTime;
- UINT16 DayNo;
- UINT16 DayRemainder;
- time_t Year;
- time_t YearNo;
- UINT16 TotalDays;
- UINT16 MonthNo;
-
- if (timer == NULL) {
- return NULL;
- }
-
- GmTime = malloc (sizeof (struct tm));
- if (GmTime == NULL) {
- return NULL;
- }
-
- ZeroMem ((VOID *) GmTime, (UINTN) sizeof (struct tm));
-
- DayNo = (UINT16) (*timer / SECSPERDAY);
- DayRemainder = (UINT16) (*timer % SECSPERDAY);
-
- GmTime->tm_sec = (int) (DayRemainder % SECSPERMIN);
- GmTime->tm_min = (int) ((DayRemainder % SECSPERHOUR) / SECSPERMIN);
- GmTime->tm_hour = (int) (DayRemainder / SECSPERHOUR);
- GmTime->tm_wday = (int) ((DayNo + 4) % 7);
-
- for (Year = 1970, YearNo = 0; DayNo > 0; Year++) {
- TotalDays = (UINT16) (IsLeap (Year) ? 366 : 365);
- if (DayNo >= TotalDays) {
- DayNo = (UINT16) (DayNo - TotalDays);
- YearNo++;
- } else {
- break;
- }
- }
-
- GmTime->tm_year = (int) (YearNo + (1970 - 1900));
- GmTime->tm_yday = (int) DayNo;
-
- for (MonthNo = 12; MonthNo > 1; MonthNo--) {
- if (DayNo > CumulativeDays[IsLeap(Year)][MonthNo]) {
- DayNo = (UINT16) (DayNo - (UINT16) (CumulativeDays[IsLeap(Year)][MonthNo]));
- break;
- }
- }
-
- GmTime->tm_mon = (int) MonthNo;
- GmTime->tm_mday = (int) DayNo;
-
- GmTime->tm_isdst = 0;
- GmTime->tm_gmtoff = 0;
- GmTime->tm_zone = NULL;
-
- return GmTime;
-}
-
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