Generate Random bytes feature

Common/DtaDev.h

@@ -1,5 +1,6 @@
 /* C:B**************************************************************************
 This software is Copyright 2014-2017 Bright Plaza Inc. <drivetrust@drivetrust.com>
+This software is Copyright 2023 Nutanix, Inc. <opensource@nutanix.com>
 
 This file is part of sedutil.
 
@@ -283,6 +284,9 @@ class DtaDev {
 	virtual uint8_t exec(DtaCommand * cmd, DtaResponse & resp, uint8_t protocol = 0x01) = 0;
 	/** return the communications ID to be used for sessions to this device */
 	virtual uint16_t comID() = 0;
+	/* Print random number of bytes specified in the argument */
+	virtual uint8_t printRandomBytes(uint8_t num_of_bytes) = 0;
+
 	bool no_hash_passwords; /** disables hashing of passwords */
 	sedutiloutput output_format; /** standard, readable, JSON */
 protected:

Common/DtaDevEnterprise.cpp

@@ -1,6 +1,7 @@
 /* C:B**************************************************************************
 This software is Copyright 2014-2017 Bright Plaza Inc. <drivetrust@drivetrust.com>
 This software is Copyright 2017 Spectra Logic Corporation
+This software is Copyright 2023 Nutanix, Inc. <opensource@nutanix.com>
 
 This file is part of sedutil.
 
@@ -1677,6 +1678,11 @@ uint8_t DtaDevEnterprise::objDump(char *sp, char * auth, char *pass,
 	LOG(D1) << "Exiting DtaDevEnterprise::objDump";
 	return 0;
 }
+
+uint8_t DtaDevEnterprise::printRandomBytes(uint8_t num_of_bytes) {
+	LOG(E) << "printRandomBytes() is not implemented for Enterprise";
+	return -1;
+}
 #ifdef _MSC_VER
 #pragma warning(pop)
 #endif

Common/DtaDevEnterprise.h

@@ -1,6 +1,7 @@
 /* C:B**************************************************************************
 This software is Copyright 2014-2017 Bright Plaza Inc. <drivetrust@drivetrust.com>
 This software is Copyright 2017 Spectra Logic Corporation
+This software is Copyright 2023 Nutanix, Inc. <opensource@nutanix.com>
 
 This file is part of sedutil.
 
@@ -205,6 +206,10 @@ class DtaDevEnterprise : public DtaDevOS {
 	uint8_t rawCmd(char *sp, char *hexauth, char *pass,
 		char *hexinvokingUID, char *hexmethod, char *hexparms);
 
+	/** Print random number of bytes
+	 * @param num_of_bytes Number of bytes to print
+	 */
+	uint8_t printRandomBytes(uint8_t num_of_bytes);
 protected:
 	uint8_t getDefaultPassword();
 private:

Common/DtaDevGeneric.cpp

@@ -1,5 +1,6 @@
 /* C:B**************************************************************************
 This software is Copyright 2014-2017 Bright Plaza Inc. <drivetrust@drivetrust.com>
+This software is Copyright 2023 Nutanix, Inc. <opensource@nutanix.com>
 
 This file is part of sedutil.
 
@@ -102,6 +103,7 @@ uint16_t DtaDevGeneric::comID()
 uint8NOCODE(exec,DtaCommand * cmd, DtaResponse & resp, uint8_t protocol)
 uint8NOCODE(objDump,char *sp, char * auth, char *pass,char * objID)
 uint8NOCODE(rawCmd,char *sp, char * auth, char *pass,char *invoker, char *method, char *plist)
+uint8NOCODE(printRandomBytes,uint8_t num_of_bytes)
 #ifdef _MSC_VER
 #pragma warning(pop)
 #endif

Common/DtaDevGeneric.h

@@ -1,5 +1,6 @@
 /* C:B**************************************************************************
 This software is Copyright 2014-2017 Bright Plaza Inc. <drivetrust@drivetrust.com>
+This software is Copyright 2023 Nutanix, Inc. <opensource@nutanix.com>
 
 This file is part of sedutil.
 
@@ -224,4 +225,6 @@ class DtaDevGeneric : public DtaDevOS {
 	 uint8_t exec(DtaCommand * cmd, DtaResponse & resp, uint8_t protocol = 1) ;
          /** return the communications ID to be used for sessions to this device */
 	 uint16_t comID() ;
+
+	 uint8_t printRandomBytes(uint8_t num_of_bytes);
 };

Common/DtaDevOpal.cpp

@@ -1,5 +1,6 @@
 /* C:B**************************************************************************
 This software is Copyright 2014-2017 Bright Plaza Inc. <drivetrust@drivetrust.com>
+This software is Copyright 2023 Nutanix, Inc. <opensource@nutanix.com>
 
 This file is part of sedutil.
 
@@ -1834,3 +1835,47 @@ uint8_t DtaDevOpal::rawCmd(char *sp, char * hexauth, char *pass,
 	LOG(D1) << "Exiting DtaDevEnterprise::rawCmd";
 	return 0;
 }
+
+uint8_t DtaDevOpal::printRandomBytes(uint8_t num_of_bytes) {
+	LOG(D1) << "Entering DtaDevOpal::printRandomBytes";
+	DtaCommand *cmd = new DtaCommand();
+	if (NULL == cmd) {
+		LOG(E) << "Create session object failed";
+		return DTAERROR_OBJECT_CREATE_FAILED;
+	}
+	cmd->reset(OPAL_UID::OPAL_THISSP_UID, OPAL_METHOD::RANDOM);
+	cmd->addToken(OPAL_TOKEN::STARTLIST);
+	cmd->addToken(num_of_bytes);
+	cmd->addToken(OPAL_TOKEN::ENDLIST);
+	cmd->complete();
+
+	session = new DtaSession(this);
+	uint8_t lastRC;
+	if (NULL == session) {
+		LOG(E) << "Unable to create session object ";
+		return DTAERROR_OBJECT_CREATE_FAILED;
+	}
+	if ((lastRC = session->start(OPAL_UID::OPAL_ADMINSP_UID)) != 0) {
+		LOG(E) << "Unable to start Unauthenticated session " << dev;
+		delete session;
+		return lastRC;
+	}
+	if ((lastRC = session->sendCommand(cmd, response)) != 0) {
+		LOG(E) << "setupLockingRange Failed ";
+		delete cmd;
+		delete session;
+		return lastRC;
+	}
+
+
+	uint8_t data[32];
+	response.getBytes(1, data);
+	cout << HEXON(2);
+	for (uint8_t i=1; i<=num_of_bytes; ++i)
+		cout << ((uint32_t)data[num_of_bytes-i] & 0xFF);
+	cout << HEXOFF << std::endl;
+	delete cmd;
+	delete session;
+	LOG(D1) << "Exiting DtaDevOpal::printRandomBytes";
+	return 0;
+}

Common/DtaDevOpal.h

@@ -1,5 +1,6 @@
 /* C:B**************************************************************************
 This software is Copyright 2014-2017 Bright Plaza Inc. <drivetrust@drivetrust.com>
+This software is Copyright 2023 Nutanix, Inc. <opensource@nutanix.com>
 
 This file is part of sedutil.
 
@@ -260,6 +261,11 @@ class DtaDevOpal : public DtaDevOS {
          */
 	uint8_t rawCmd(char *sp, char * auth, char *pass,
 		char *invoker, char *method, char *plist);
+
+	/** Print random number of bytes
+	 * @param num_of_bytes Number of bytes to print
+	 */
+	uint8_t printRandomBytes(uint8_t num_of_bytes);
 protected:
         /** Primitive to handle the setting of a value in the locking sp.
          * @param table_uid UID of the table 

Common/DtaOptions.cpp

@@ -1,5 +1,6 @@
 /* C:B**************************************************************************
 This software is Copyright 2014-2017 Bright Plaza Inc. <drivetrust@drivetrust.com>
+This software is Copyright 2023 Nutanix, Inc. <opensource@nutanix.com>
 
 This file is part of sedutil.
 
@@ -95,6 +96,9 @@ void usage()
     printf("                                revert the device using the PSID *ERASING* *ALL* the data \n");
     printf("--printDefaultPassword <device>\n");
     printf("                                print MSID \n");
+    printf("--printRandomBytes <count> <device>\n");
+    printf("                                Print random generated <count> bytes from <device> \n");
+    printf("                                <count> should be between 1 to 32 (both inclusive) \n");
     printf("\n");
     printf("Examples \n");
     printf("sedutil-cli --scan \n");
@@ -511,6 +515,7 @@ uint8_t DtaOptions(int argc, char * argv[], DTA_OPTIONS * opts)
 			END_OPTION
 		BEGIN_OPTION(objDump, 5) i += 4; OPTION_IS(device) END_OPTION
         BEGIN_OPTION(printDefaultPassword, 1) OPTION_IS(device) END_OPTION
+		BEGIN_OPTION(printRandomBytes, 2, 2) OPTION_IS(byte_count) OPTION_IS(device) END_OPTION
 		BEGIN_OPTION(rawCmd, 7) i += 6; OPTION_IS(device) END_OPTION
 		else {
             LOG(E) << "Invalid command line argument " << argv[i];

Common/DtaOptions.h

@@ -1,5 +1,6 @@
 /* C:B**************************************************************************
 This software is Copyright 2014-2017 Bright Plaza Inc. <drivetrust@drivetrust.com>
+This software is Copyright 2023 Nutanix, Inc. <opensource@nutanix.com>
 
 This file is part of sedutil.
 
@@ -44,6 +45,7 @@ typedef struct _DTA_OPTIONS {
 
 	bool no_hash_passwords; /** global parameter, disables hashing of passwords */
 	sedutiloutput output_format;
+	uint8_t byte_count;
 } DTA_OPTIONS;
 /** Print a usage message */
 void usage();
@@ -95,6 +97,7 @@ typedef enum _sedutiloption {
 	validatePBKDF2,
 	objDump,
     printDefaultPassword,
+	printRandomBytes,
 	rawCmd,
 
 } sedutiloption;

Common/sedutil.cpp

@@ -1,5 +1,6 @@
 /* C:B**************************************************************************
 This software is Copyright 2014-2017 Bright Plaza Inc. <drivetrust@drivetrust.com>
+This software is Copyright 2023 Nutanix, Inc. <opensource@nutanix.com>
 
 This file is part of sedutil.
 
@@ -259,6 +260,15 @@ int main(int argc, char * argv[])
 		LOG(D) << "print default password";
         return d->printDefaultPassword();
         break;
+	case sedutiloption::printRandomBytes:
+	{
+		uint8_t num_of_bytes = atol(argv[opts.byte_count]);
+		LOG(D) << "print random " << num_of_bytes << " byte(s)";
+		if ((num_of_bytes > 0) && (num_of_bytes <= 32))
+			return d->printRandomBytes(num_of_bytes);
+		LOG(E) << "Random byte count between 1 to 32 are supported";
+		break;
+	}
 	case sedutiloption::rawCmd:
 		LOG(D) << "Performing cmdDump ";
 		return d->rawCmd(argv[argc - 7], argv[argc - 6], argv[argc - 5], argv[argc - 4], argv[argc - 3], argv[argc - 2]);