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Viewing changes to src/tcs/req_mgr.c

  • Committer: Bazaar Package Importer
  • Author(s): William Lima
  • Date: 2007-04-18 16:39:38 UTC
  • Revision ID: james.westby@ubuntu.com-20070418163938-opscl2mvvi76jiec
Tags: upstream-0.2.9.1
Import upstream version 0.2.9.1

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src/tcs/req_mgr.c
 
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/*
 
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 * Licensed Materials - Property of IBM
 
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 *
 
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 * trousers - An open source TCG Software Stack
 
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 *
 
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 * (C) Copyright International Business Machines Corp. 2004-2006
 
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 *
 
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 */
 
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#include <stdlib.h>
 
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#include <stdio.h>
 
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#include <syslog.h>
 
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#include <pthread.h>
 
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#include <signal.h>
 
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#include <string.h>
 
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#include <errno.h>
 
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#include <unistd.h>
 
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#include "trousers/tss.h"
 
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#include "trousers_types.h"
 
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#include "tcs_tsp.h"
 
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#include "tcs_utils.h"
 
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#include "tcsd_wrap.h"
 
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#include "tcsd.h"
 
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#include "tddl.h"
 
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#include "req_mgr.h"
 
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#include "tcslog.h"
 
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static struct tpm_req_mgr *trm;
 
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#ifdef TSS_DEBUG
 
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#define TSS_TPM_DEBUG
 
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#endif
 
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TSS_RESULT
 
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req_mgr_submit_req(BYTE *blob)
 
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{
 
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        TSS_RESULT result;
 
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        BYTE loc_buf[TSS_TPM_TXBLOB_SIZE];
 
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        UINT32 size = TSS_TPM_TXBLOB_SIZE;
 
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        UINT32 retry = TSS_REQ_MGR_MAX_RETRIES;
 
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        UINT32 blob_size = Decode_UINT32(&blob[2]);
 
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        if (blob_size > TSS_TPM_TXBLOB_SIZE) {
 
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                LogDebugFn("TPM blob is too large! (%u bytes)", blob_size);
 
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                return TCSERR(TSS_E_INTERNAL_ERROR);
 
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        }
 
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        pthread_mutex_lock(&(trm->queue_lock));
 
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#ifdef TSS_TPM_DEBUG
 
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        LogBlobData("To TPM:", blob_size, blob);
 
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#endif
 
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        do {
 
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                result = Tddli_TransmitData(blob, blob_size, loc_buf, &size);
 
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        } while (!result && (Decode_UINT32(&loc_buf[6]) == TCPA_E_RETRY) && --retry);
 
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        if (!result)
 
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                memcpy(blob, loc_buf, Decode_UINT32(&loc_buf[2]));
 
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#ifdef TSS_TPM_DEBUG
 
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        LogBlobData("From TPM:", size, loc_buf);
 
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#endif
 
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        pthread_mutex_unlock(&(trm->queue_lock));
 
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        return result;
 
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}
 
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TSS_RESULT
 
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req_mgr_init()
 
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{
 
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        if ((trm = calloc(1, sizeof(struct tpm_req_mgr))) == NULL) {
 
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                LogError("malloc of %zd bytes failed.", sizeof(struct tpm_req_mgr));
 
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                return TSS_E_OUTOFMEMORY;
 
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        }
 
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        pthread_mutex_init(&(trm->queue_lock), NULL);
 
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        return Tddli_Open();
 
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}
 
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TSS_RESULT
 
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req_mgr_final()
 
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{
 
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        free(trm);
 
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        return Tddli_Close();
 
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}
 
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