| /********************************************************************************/ |
| /* */ |
| /* StartAuthSession */ |
| /* Written by Ken Goldman */ |
| /* IBM Thomas J. Watson Research Center */ |
| /* */ |
| /* (c) Copyright IBM Corporation 2015 - 2019. */ |
| /* */ |
| /* All rights reserved. */ |
| /* */ |
| /* Redistribution and use in source and binary forms, with or without */ |
| /* modification, are permitted provided that the following conditions are */ |
| /* met: */ |
| /* */ |
| /* Redistributions of source code must retain the above copyright notice, */ |
| /* this list of conditions and the following disclaimer. */ |
| /* */ |
| /* Redistributions in binary form must reproduce the above copyright */ |
| /* notice, this list of conditions and the following disclaimer in the */ |
| /* documentation and/or other materials provided with the distribution. */ |
| /* */ |
| /* Neither the names of the IBM Corporation nor the names of its */ |
| /* contributors may be used to endorse or promote products derived from */ |
| /* this software without specific prior written permission. */ |
| /* */ |
| /* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS */ |
| /* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT */ |
| /* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR */ |
| /* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT */ |
| /* HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, */ |
| /* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT */ |
| /* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, */ |
| /* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY */ |
| /* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT */ |
| /* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE */ |
| /* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. */ |
| /********************************************************************************/ |
| |
| /* |
| |
| */ |
| |
| #include <stdio.h> |
| #include <stdlib.h> |
| #include <string.h> |
| #include <stdint.h> |
| |
| #include <ibmtss/tss.h> |
| #include <ibmtss/tssutils.h> |
| #include <ibmtss/tssresponsecode.h> |
| |
| static void printUsage(void); |
| |
| extern int tssUtilsVerbose; |
| |
| int main(int argc, char *argv[]) |
| { |
| TPM_RC rc = 0; |
| int i; /* argc iterator */ |
| TSS_CONTEXT *tssContext = NULL; |
| StartAuthSession_In in; |
| StartAuthSession_Out out; |
| StartAuthSession_Extra extra; |
| TPMI_DH_OBJECT tpmKey = TPM_RH_NULL; /* salt key */ |
| TPMI_DH_ENTITY bindHandle = TPM_RH_NULL; /* default */ |
| const char *bindPassword = NULL; |
| char seChar = 0; /* session type */ |
| TPMI_ALG_HASH halg = TPM_ALG_SHA256; /* default */ |
| TPMI_ALG_SYM algorithm = TPM_ALG_XOR; /* default symmetric algorithm */ |
| const char *nonceTPMFilename = NULL; |
| |
| setvbuf(stdout, 0, _IONBF, 0); /* output may be going through pipe to log file */ |
| TSS_SetProperty(NULL, TPM_TRACE_LEVEL, "1"); |
| tssUtilsVerbose = FALSE; |
| |
| /* command line argument defaults */ |
| for (i=1 ; (i<argc) && (rc == 0) ; i++) { |
| if (strcmp(argv[i],"-se") == 0) { |
| i++; |
| if (i < argc) { |
| seChar = argv[i][0]; |
| } |
| else { |
| printf("Missing parameter for -se\n"); |
| printUsage(); |
| } |
| } |
| else if (strcmp(argv[i],"-halg") == 0) { |
| i++; |
| if (i < argc) { |
| if (strcmp(argv[i],"sha1") == 0) { |
| halg = TPM_ALG_SHA1; |
| } |
| else if (strcmp(argv[i],"sha256") == 0) { |
| halg = TPM_ALG_SHA256; |
| } |
| else if (strcmp(argv[i],"sha384") == 0) { |
| halg = TPM_ALG_SHA384; |
| } |
| else if (strcmp(argv[i],"sha512") == 0) { |
| halg = TPM_ALG_SHA512; |
| } |
| else { |
| printf("Bad parameter %s for -halg\n", argv[i]); |
| printUsage(); |
| } |
| } |
| else { |
| printf("-halg option needs a value\n"); |
| printUsage(); |
| } |
| } |
| else if (strcmp(argv[i],"-hs") == 0) { |
| i++; |
| if (i < argc) { |
| sscanf(argv[i], "%x", &tpmKey); |
| } |
| else { |
| printf("Bad parameter %s for -hs\n", argv[i]); |
| printUsage(); |
| } |
| } |
| else if (strcmp(argv[i],"-bi") == 0) { |
| i++; |
| if (i < argc) { |
| sscanf(argv[i], "%x", &bindHandle); |
| } |
| else { |
| printf("Bad parameter %s for -bi\n", argv[i]); |
| printUsage(); |
| } |
| } |
| else if (strcmp(argv[i],"-sym") == 0) { |
| i++; |
| if (i < argc) { |
| if (strcmp(argv[i],"xor") == 0) { |
| algorithm = TPM_ALG_XOR; |
| } |
| else if (strcmp(argv[i],"aes") == 0) { |
| algorithm = TPM_ALG_AES; |
| } |
| else { |
| printf("Bad parameter %s for -sym\n", argv[i]); |
| printUsage(); |
| } |
| } |
| else { |
| printf("Missing parameter for -sym\n"); |
| printUsage(); |
| } |
| } |
| else if (strcmp(argv[i],"-on") == 0) { |
| i++; |
| if (i < argc) { |
| nonceTPMFilename = argv[i]; |
| } |
| else { |
| printf("-on option needs a value\n"); |
| printUsage(); |
| } |
| } |
| else if (strcmp(argv[i],"-pwdb") == 0) { |
| i++; |
| if (i < argc) { |
| bindPassword = argv[i]; |
| } |
| else { |
| printf("-pwdb option needs a value\n"); |
| printUsage(); |
| } |
| } |
| else if (strcmp(argv[i],"-h") == 0) { |
| printUsage(); |
| } |
| else if (strcmp(argv[i],"-v") == 0) { |
| tssUtilsVerbose = TRUE; |
| TSS_SetProperty(NULL, TPM_TRACE_LEVEL, "2"); |
| } |
| else { |
| printf("\n%s is not a valid option\n", argv[i]); |
| printUsage(); |
| } |
| } |
| if ((bindHandle == TPM_RH_NULL) && (bindPassword != NULL)) { |
| printf("-pwdb (bind password) unused without -bi (bind handle)\n"); |
| printUsage(); |
| } |
| /* sessionType */ |
| switch (seChar) { |
| case 'h': |
| in.sessionType = TPM_SE_HMAC; |
| break; |
| case 'p': |
| in.sessionType = TPM_SE_POLICY; |
| break; |
| case 't': |
| in.sessionType = TPM_SE_TRIAL; |
| break; |
| default: |
| printf("Missing or illegal parameter for -se\n"); |
| printUsage(); |
| } |
| if (rc == 0) { |
| /* salt key */ |
| in.tpmKey = tpmKey; |
| /* encryptedSalt (not required) */ |
| in.encryptedSalt.b.size = 0; |
| /* bind handle */ |
| in.bind = bindHandle; |
| /* nonceCaller (not required) */ |
| in.nonceCaller.t.size = 0; |
| /* for parameter encryption */ |
| in.symmetric.algorithm = algorithm; |
| /* authHash */ |
| in.authHash = halg; |
| } |
| /* symmetric */ |
| /* Table 128 - Definition of TPMT_SYM_DEF Structure */ |
| if (rc == 0) { /* XOR */ |
| if (in.symmetric.algorithm == TPM_ALG_XOR) { |
| /* Table 61 - Definition of (TPM_ALG_ID) TPMI_ALG_SYM Type */ |
| /* Table 125 - Definition of TPMU_SYM_KEY_BITS Union */ |
| in.symmetric.keyBits.xorr = halg; |
| /* Table 126 - Definition of TPMU_SYM_MODE Union */ |
| in.symmetric.mode.sym = TPM_ALG_NULL; /* none for xor */ |
| } |
| else { /* AES */ |
| /* Table 61 - Definition of (TPM_ALG_ID) TPMI_ALG_SYM Type */ |
| /* Table 125 - Definition of TPMU_SYM_KEY_BITS Union */ |
| in.symmetric.keyBits.aes = 128; |
| /* Table 126 - Definition of TPMU_SYM_MODE Union */ |
| /* Table 63 - Definition of (TPM_ALG_ID) TPMI_ALG_SYM_MODE Type */ |
| in.symmetric.mode.aes = TPM_ALG_CFB; |
| } |
| } |
| /* pass the bind password to the TSS post processor for the session key calculation */ |
| if (rc == 0) { |
| extra.bindPassword = bindPassword; |
| } |
| /* Start a TSS context */ |
| if (rc == 0) { |
| rc = TSS_Create(&tssContext); |
| } |
| /* call TSS to execute the command */ |
| if (rc == 0) { |
| rc = TSS_Execute(tssContext, |
| (RESPONSE_PARAMETERS *)&out, |
| (COMMAND_PARAMETERS *)&in, |
| (EXTRA_PARAMETERS *)&extra, |
| TPM_CC_StartAuthSession, |
| TPM_RH_NULL, NULL, 0); |
| } |
| { |
| TPM_RC rc1 = TSS_Delete(tssContext); |
| if (rc == 0) { |
| rc = rc1; |
| } |
| } |
| /* optionally store the nonceTPM for use in policy commands */ |
| if ((rc == 0) && (nonceTPMFilename != NULL)) { |
| rc = TSS_File_WriteBinaryFile((uint8_t *)&out.nonceTPM.t.buffer, |
| out.nonceTPM.t.size, |
| nonceTPMFilename); |
| } |
| if (rc == 0) { |
| printf("Handle %08x\n", out.sessionHandle); |
| if (tssUtilsVerbose) printf("startauthsession: success\n"); |
| } |
| else { |
| const char *msg; |
| const char *submsg; |
| const char *num; |
| printf("startauthsession: failed, rc %08x\n", rc); |
| TSS_ResponseCode_toString(&msg, &submsg, &num, rc); |
| printf("%s%s%s\n", msg, submsg, num); |
| rc = EXIT_FAILURE; |
| } |
| return rc; |
| } |
| |
| static void printUsage(void) |
| { |
| printf("\n"); |
| printf("startauthsession\n"); |
| printf("\n"); |
| printf("Runs TPM2_StartAuthSession\n"); |
| printf("\n"); |
| printf("\t-se\n"); |
| printf("\n"); |
| printf("\t\th HMAC session\n"); |
| printf("\t\tp Policy session\n"); |
| printf("\t\tt Trial policy session\n"); |
| printf("\n"); |
| printf("\t[-halg\t(sha1, sha256, sha384, sha512) (default sha256)]\n"); |
| printf("\t[-hs\tsalt handle (default TPM_RH_NULL)]\n"); |
| printf("\t[-bi\tbind handle (default TPM_RH_NULL)]\n"); |
| printf("\t[-pwdb\tbind password for bind handle (default empty)]\n"); |
| printf("\t[-sym\t(xor, aes) symmetric parameter encryption algorithm (default xor)]\n"); |
| printf("\t[-on\tnonceTPM file for policy session (default do not save)]\n"); |
| exit(1); |
| } |