mirror of
https://github.com/xen-project/xen.git
synced 2026-10-29 18:50:05 +01:00
kfraser@localhost.localdomain
39a368aba9
socket for HVM guests. Signed-off-by: Vinnie Scarlata <vincent.r.scarlata@intel.com>
267 lines
8.0 KiB
C
267 lines
8.0 KiB
C
// ===================================================================
|
|
//
|
|
// Copyright (c) 2005, Intel Corp.
|
|
// 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 name of Intel 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 OWNER 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.
|
|
// ===================================================================
|
|
//
|
|
// dmictl.c
|
|
//
|
|
// Functions for creating and destroying DMIs
|
|
//
|
|
// ==================================================================
|
|
|
|
#include <stdio.h>
|
|
#include <unistd.h>
|
|
#include <string.h>
|
|
|
|
#include "vtpmpriv.h"
|
|
#include "bsg.h"
|
|
#include "buffer.h"
|
|
#include "log.h"
|
|
#include "hashtable.h"
|
|
#include "hashtable_itr.h"
|
|
#include "vtpm_ipc.h"
|
|
|
|
#define TPM_EMULATOR_PATH "/usr/bin/vtpmd"
|
|
|
|
// if dmi_res is non-null, then return a pointer to new object.
|
|
// Also, this does not fill in the measurements. They should be filled by
|
|
// design dependent code or saveNVM
|
|
TPM_RESULT init_dmi(UINT32 dmi_id, BYTE dmi_type, VTPM_DMI_RESOURCE **dmi_res) {
|
|
|
|
TPM_RESULT status=TPM_SUCCESS;
|
|
VTPM_DMI_RESOURCE *new_dmi=NULL;
|
|
UINT32 *dmi_id_key=NULL;
|
|
|
|
if ((new_dmi = (VTPM_DMI_RESOURCE *) malloc (sizeof(VTPM_DMI_RESOURCE))) == NULL) {
|
|
status = TPM_RESOURCES;
|
|
goto abort_egress;
|
|
}
|
|
memset(new_dmi, 0, sizeof(VTPM_DMI_RESOURCE));
|
|
new_dmi->dmi_id = dmi_id;
|
|
new_dmi->dmi_type = dmi_type;
|
|
new_dmi->connected = FALSE;
|
|
new_dmi->TCSContext = 0;
|
|
|
|
new_dmi->NVMLocation = (char *) malloc(11 + strlen(DMI_NVM_FILE));
|
|
sprintf(new_dmi->NVMLocation, DMI_NVM_FILE, (uint32_t) new_dmi->dmi_id);
|
|
|
|
if ((dmi_id_key = (UINT32 *) malloc (sizeof(UINT32))) == NULL) {
|
|
status = TPM_RESOURCES;
|
|
goto abort_egress;
|
|
}
|
|
*dmi_id_key = new_dmi->dmi_id;
|
|
|
|
// install into map
|
|
if (!hashtable_insert(vtpm_globals->dmi_map, dmi_id_key, new_dmi)){
|
|
vtpmlogerror(VTPM_LOG_VTPM, "Failed to insert instance into table. Aborting.\n", dmi_id);
|
|
status = TPM_FAIL;
|
|
goto abort_egress;
|
|
}
|
|
|
|
if (dmi_res)
|
|
*dmi_res = new_dmi;
|
|
|
|
goto egress;
|
|
|
|
abort_egress:
|
|
if (new_dmi) {
|
|
free(new_dmi->NVMLocation);
|
|
free(new_dmi);
|
|
}
|
|
free(dmi_id_key);
|
|
|
|
egress:
|
|
return status;
|
|
}
|
|
|
|
TPM_RESULT close_dmi(VTPM_DMI_RESOURCE *dmi_res) {
|
|
if (dmi_res == NULL)
|
|
return TPM_SUCCESS;
|
|
|
|
if (dmi_res->dmi_id == VTPM_CTL_DM)
|
|
return(TPM_BAD_PARAMETER);
|
|
|
|
TCS_CloseContext(dmi_res->TCSContext);
|
|
dmi_res->connected = FALSE;
|
|
|
|
vtpm_globals->connected_dmis--;
|
|
|
|
return (VTPM_Close_DMI_Extra(dmi_res) );
|
|
}
|
|
|
|
TPM_RESULT VTPM_Handle_New_DMI(const buffer_t *param_buf) {
|
|
|
|
VTPM_DMI_RESOURCE *new_dmi=NULL;
|
|
TPM_RESULT status=TPM_FAIL;
|
|
BYTE dmi_type, vm_type, startup_mode;
|
|
UINT32 dmi_id;
|
|
|
|
if (param_buf == NULL) { // Assume creation of Dom 0 control
|
|
dmi_type = VTPM_TYPE_NON_MIGRATABLE;
|
|
dmi_id = VTPM_CTL_DM;
|
|
} else if (buffer_len(param_buf) != sizeof(BYTE) * 3 + sizeof(UINT32)) {
|
|
vtpmloginfo(VTPM_LOG_VTPM, "New DMI command wrong length: %d.\n", buffer_len(param_buf));
|
|
status = TPM_BAD_PARAMETER;
|
|
goto abort_egress;
|
|
} else {
|
|
vtpm_globals->connected_dmis++; // Put this here so we don't count Dom0
|
|
BSG_UnpackList( param_buf->bytes, 4,
|
|
BSG_TYPE_BYTE, &dmi_type,
|
|
BSG_TYPE_BYTE, &startup_mode,
|
|
BSG_TYPE_BYTE, &vm_type,
|
|
BSG_TYPE_UINT32, &dmi_id);
|
|
}
|
|
|
|
if ((dmi_type != VTPM_TYPE_NON_MIGRATABLE) && (dmi_type != VTPM_TYPE_MIGRATABLE)) {
|
|
vtpmlogerror(VTPM_LOG_VTPM, "Creation of VTPM with illegal type.\n");
|
|
status = TPM_BAD_PARAMETER;
|
|
goto abort_egress;
|
|
}
|
|
|
|
new_dmi = (VTPM_DMI_RESOURCE *) hashtable_search(vtpm_globals->dmi_map, &dmi_id);
|
|
if (new_dmi == NULL) {
|
|
vtpmloginfo(VTPM_LOG_VTPM, "Creating new DMI instance %d attached.\n", dmi_id );
|
|
// Brand New DMI. Initialize the persistent pieces
|
|
TPMTRYRETURN(init_dmi(dmi_id, dmi_type, &new_dmi) );
|
|
} else
|
|
vtpmloginfo(VTPM_LOG_VTPM, "Re-attaching DMI instance %d.\n", dmi_id);
|
|
|
|
if (new_dmi->connected) {
|
|
vtpmlogerror(VTPM_LOG_VTPM, "Attempt to re-attach, currently attached instance %d. Ignoring\n", dmi_id);
|
|
status = TPM_BAD_PARAMETER;
|
|
goto abort_egress;
|
|
}
|
|
|
|
if (new_dmi->dmi_type == VTPM_TYPE_MIGRATED) {
|
|
vtpmlogerror(VTPM_LOG_VTPM, "Attempt to re-attach previously migrated instance %d without recovering first. Ignoring\n", dmi_id);
|
|
status = TPM_BAD_PARAMETER;
|
|
goto abort_egress;
|
|
}
|
|
|
|
// Initialize the Non-persistent pieces
|
|
TPMTRYRETURN( TCS_OpenContext(&new_dmi->TCSContext) );
|
|
|
|
new_dmi->connected = TRUE;
|
|
|
|
// Design specific new DMI code.
|
|
// Includes: create IPCs, Measuring DMI, and maybe launching DMI
|
|
TPMTRYRETURN(VTPM_New_DMI_Extra(new_dmi, vm_type, startup_mode) );
|
|
goto egress;
|
|
|
|
abort_egress:
|
|
vtpmlogerror(VTPM_LOG_VTPM, "Failed to create DMI id=%d due to status=%s. Cleaning.\n", dmi_id, tpm_get_error_name(status));
|
|
close_dmi(new_dmi );
|
|
|
|
egress:
|
|
return status;
|
|
}
|
|
|
|
TPM_RESULT VTPM_Handle_Close_DMI( const buffer_t *param_buf) {
|
|
|
|
TPM_RESULT status=TPM_FAIL;
|
|
VTPM_DMI_RESOURCE *dmi_res=NULL;
|
|
UINT32 dmi_id;
|
|
|
|
if ((param_buf == NULL) || (buffer_len(param_buf) != sizeof(UINT32)) ) {
|
|
vtpmlogerror(VTPM_LOG_VTPM, "Closing DMI has bad size.");
|
|
status = TPM_BAD_PARAMETER;
|
|
goto abort_egress;
|
|
}
|
|
|
|
BSG_UnpackList( param_buf->bytes, 1,
|
|
BSG_TYPE_UINT32, &dmi_id);
|
|
|
|
vtpmloginfo(VTPM_LOG_VTPM, "Closing DMI %d.\n", dmi_id);
|
|
|
|
dmi_res = (VTPM_DMI_RESOURCE *) hashtable_search(vtpm_globals->dmi_map, &dmi_id);
|
|
if (dmi_res == NULL ) {
|
|
vtpmlogerror(VTPM_LOG_VTPM, "Trying to close nonexistent DMI.\n");
|
|
status = TPM_BAD_PARAMETER;
|
|
goto abort_egress;
|
|
}
|
|
|
|
if (!dmi_res->connected) {
|
|
vtpmlogerror(VTPM_LOG_VTPM, "Closing non-connected DMI.\n");
|
|
status = TPM_BAD_PARAMETER;
|
|
goto abort_egress;
|
|
}
|
|
|
|
// Close Dmi
|
|
TPMTRYRETURN(close_dmi( dmi_res ));
|
|
|
|
status=TPM_SUCCESS;
|
|
goto egress;
|
|
|
|
abort_egress:
|
|
egress:
|
|
|
|
return status;
|
|
}
|
|
|
|
TPM_RESULT VTPM_Handle_Delete_DMI( const buffer_t *param_buf) {
|
|
|
|
TPM_RESULT status=TPM_FAIL;
|
|
VTPM_DMI_RESOURCE *dmi_res=NULL;
|
|
UINT32 dmi_id;
|
|
|
|
if ((param_buf == NULL) || (buffer_len(param_buf) != sizeof(UINT32)) ) {
|
|
vtpmlogerror(VTPM_LOG_VTPM, "Closing DMI has bad size.\n");
|
|
status = TPM_BAD_PARAMETER;
|
|
goto abort_egress;
|
|
}
|
|
|
|
BSG_UnpackList( param_buf->bytes, 1,
|
|
BSG_TYPE_UINT32, &dmi_id);
|
|
|
|
vtpmloginfo(VTPM_LOG_VTPM, "Deleting DMI %d.\n", dmi_id);
|
|
|
|
dmi_res = (VTPM_DMI_RESOURCE *) hashtable_remove(vtpm_globals->dmi_map, &dmi_id);
|
|
if (dmi_res == NULL) {
|
|
vtpmlogerror(VTPM_LOG_VTPM, "Closing non-existent DMI.\n");
|
|
status = TPM_BAD_PARAMETER;
|
|
goto abort_egress;
|
|
}
|
|
|
|
//vtpm scripts delete file dmi_res->NVMLocation for us
|
|
|
|
// Close DMI first
|
|
TPMTRYRETURN(close_dmi( dmi_res ));
|
|
free ( dmi_res );
|
|
|
|
status=TPM_SUCCESS;
|
|
goto egress;
|
|
|
|
abort_egress:
|
|
egress:
|
|
|
|
return status;
|
|
}
|