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cd95bce19e4cc070a0cd32cf688136cfcc01dcc2
xen/tools/vtpm/vtpm-0.5.1.patch
T
Keir Fraser b0ae5f8bd1 vtpm: Upgrade to using tpm_emulator-0.5.1 
The newer version of the emulator contains several bug fixes, one that
we were seeing in our use of vtpm.

This patch also defines TPM_STRONG_PERSISTENCE for the new emulator.

A couple of important notes about this patch:
-This has only been tested on PVM domU's. In theory it should work for
HVM but I have not tried it at all and can guarantee nothing.
-All the relevant changes in tools/vtpm/vtpm.patch have been ported
to tpm_emulator-0.5.1.
-None of the changes in tpm_emulator.patch have been ported. In
particular this means the BUILD_EMULATOR option, which as I understand
lets you use the tpm_emulator in dom0 for a machine that does
not have a real hardware TPM does not work. This functionality should
be easy to add though because the new emulator already comes with a
kernel module interface.
-No considerations were made for the VTPM_MULTI_VM feature (which is
supposedly unfinished). This patch may or may not break any progress
made on that feature.

Signed-off-by: Matt Fioravante <Matthew.Fioravante@jhuapl.edu>
2009-08-24 08:08:52 +01:00

767 lines
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diff -Naurp tpm_emulator-0.5.1/Makefile tpm5-test/Makefile
--- tpm_emulator-0.5.1/Makefile 2008-02-14 03:22:48.000000000 -0500
+++ tpm5-test/Makefile 2009-07-15 09:45:28.000000000 -0400
@@ -10,7 +10,7 @@ VERSION_MINOR := 5
VERSION_BUILD := $(shell date +"%s")
VERSION_SUFFIX := .1
-SUBDIRS := tpmd tpmd_dev tddl
+SUBDIRS := tpmd
all: version all-recursive
@@ -48,12 +48,12 @@ user_install: user
modules_install: modules
@$(MAKE) -C tpmd_dev install || exit -1
-DIRS := . tpm crypto tpmd tpmd_dev tddl tpmd_dev_openbsd
+DIRS := . tpm crypto tpmd
DISTSRC := $(foreach dir, $(DIRS), $(wildcard $(dir)/*.c))
DISTSRC += $(foreach dir, $(DIRS), $(wildcard $(dir)/*.h))
-DIRS := . tpmd tpmd_dev tddl tpmd_dev_openbsd
+DIRS := . tpmd
DISTSRC += $(foreach dir, $(DIRS), $(dir)/Makefile)
-DISTSRC += ./README ./AUTHORS ./ChangeLog tpmd_dev/tpmd_dev.rules.in
+DISTSRC += ./README ./AUTHORS ./ChangeLog
DISTDIR := tpm_emulator-$(VERSION_MAJOR).$(VERSION_MINOR)$(VERSION_SUFFIX)
dist: $(DISTSRC)
diff -Naurp tpm_emulator-0.5.1/tpm/tpm_capability.c tpm5-test/tpm/tpm_capability.c
--- tpm_emulator-0.5.1/tpm/tpm_capability.c 2008-02-14 03:22:48.000000000 -0500
+++ tpm5-test/tpm/tpm_capability.c 2009-07-16 12:04:20.000000000 -0400
@@ -136,8 +136,19 @@ static TPM_RESULT cap_property(UINT32 su
case TPM_CAP_PROP_TIS_TIMEOUT:
debug("[TPM_CAP_PROP_TIS_TIMEOUT]");
- /* TODO: TPM_CAP_PROP_TIS_TIMEOUT */
- return TPM_FAIL;
+ /* TODO: TPM_CAP_PROP_TIS_TIMEOUT: Measure these values and determine correct ones */
+ UINT32 len = *respSize = 16;
+ BYTE *ptr = *resp = tpm_malloc(*respSize);
+ if (ptr == NULL ||
+ tpm_marshal_UINT32(&ptr, &len, 200000) ||
+ tpm_marshal_UINT32(&ptr, &len, 200000) ||
+ tpm_marshal_UINT32(&ptr, &len, 200000) ||
+ tpm_marshal_UINT32(&ptr, &len, 200000)) {
+ tpm_free(*resp);
+ return TPM_FAIL;
+ }
+ return TPM_SUCCESS;
+
case TPM_CAP_PROP_STARTUP_EFFECT:
debug("[TPM_CAP_PROP_STARTUP_EFFECT]");
@@ -189,8 +200,12 @@ static TPM_RESULT cap_property(UINT32 su
case TPM_CAP_PROP_DURATION:
debug("[TPM_CAP_PROP_DURATION]");
- /* TODO: TPM_CAP_PROP_DURATION */
- return TPM_FAIL;
+ /* TODO: TPM_CAP_PROP_DURATION: Measure these values and return accurate ones */
+ BYTE dur[]= {0x0,0x0,0x0,0xc,0x0,0x7,0xa1,0x20,0x0,0x1e,0x84,0x80,0x11,0xe1,0xa3,0x0};
+ *respSize = 16;
+ *resp = tpm_malloc(*respSize);
+ memcpy(*resp,dur,16);
+
case TPM_CAP_PROP_ACTIVE_COUNTER:
debug("[TPM_CAP_PROP_ACTIVE_COUNTER]");
diff -Naurp tpm_emulator-0.5.1/tpmd/Makefile tpm5-test/tpmd/Makefile
--- tpm_emulator-0.5.1/tpmd/Makefile 2008-02-14 03:22:48.000000000 -0500
+++ tpm5-test/tpmd/Makefile 2009-07-16 12:08:26.000000000 -0400
@@ -8,9 +8,10 @@ WFLAGS := -Wall -Wno-unused -Wpointer-a
-Wwrite-strings -Wsign-compare -Wno-multichar
#WFLAGS += -Wextra -Wcast-qual -Wmissing-prototypes -Wmissing-declarations -Wstrict-aliasing
CFLAGS += $(WFLAGS) -g -I.. -I. -O2 -fno-strict-aliasing
+CFLAGS += -I../../../../tools/vtpm_manager/manager
LDFLAGS += -lgmp
-BINDIR := /usr/sbin/
+BINDIR := /usr/bin/
TPMD := tpmd
DIRS := ../tpm ../crypto
@@ -18,6 +19,8 @@ SRCS := $(foreach dir, $(DIRS), $(wil
OBJS := $(patsubst %.c, %.o, $(SRCS))
OBJS := $(foreach dir, $(DIRS), $(patsubst $(dir)/%.o, %.o, $(filter $(dir)/%.o, $(OBJS))))
+VTPM_BIN := vtpmd
+
vpath %.c $(strip $(DIRS))
all: $(TPMD)
@@ -32,10 +35,8 @@ TPMD_GROUP ?= tss
INSTALL ?= install
install: $(TPMD)
- $(INSTALL) -m 755 -o $(TPMD_USER) -g $(TPMD_GROUP) -d $(DESTDIR)/var/lib/tpm
- $(INSTALL) -m 755 -o $(TPMD_USER) -g $(TPMD_GROUP) -d $(DESTDIR)/var/run/tpm
$(INSTALL) -D -d $(DESTDIR)/$(BINDIR)
- $(INSTALL) -m 755 $(TPMD) $(DESTDIR)/$(BINDIR)
+ $(INSTALL) -m 755 $(TPMD) $(DESTDIR)/$(BINDIR)/$(VTPM_BIN)
.PHONY: all clean install
diff -Naurp tpm_emulator-0.5.1/tpmd/tpmd.c tpm5-test/tpmd/tpmd.c
--- tpm_emulator-0.5.1/tpmd/tpmd.c 2008-02-14 03:22:48.000000000 -0500
+++ tpm5-test/tpmd/tpmd.c 2009-07-16 11:19:05.000000000 -0400
@@ -32,6 +32,9 @@
#include <grp.h>
#include "tpm_emulator_config.h"
#include "tpm/tpm_emulator.h"
+#include "tpm/tpm_structures.h"
+#include "tpm/tpm_marshalling.h"
+#include "vtpm_manager.h"
#define TPM_DAEMON_NAME "tpmd"
#define TPM_CMD_BUF_SIZE 4096
@@ -39,6 +42,24 @@
#define TPM_RANDOM_DEVICE "/dev/urandom"
#undef TPM_MKDIRS
+#ifdef VTPM_MULTI_VM
+ #define DEV_BE "/dev/vtpm"
+ #define DEV_FE "/dev/tpm"
+#else
+ #define PVM_RX_FIFO_D "/var/vtpm/fifos/tpm_cmd_to_%d.fifo"
+ #define PVM_TX_FIFO "/var/vtpm/fifos/tpm_rsp_from_all.fifo"
+ #define HVM_RX_FIFO_D "/var/vtpm/socks/%d.socket"
+
+ #define VTPM_RX_FIFO_D "/var/vtpm/fifos/vtpm_rsp_to_%d.fifo"
+ #define VTPM_TX_FIFO "/var/vtpm/fifos/vtpm_cmd_from_all.fifo"
+
+ static char *vtpm_rx_name=NULL;
+#endif
+
+ static int vtpm_tx_fh=-1, vtpm_rx_fh=-1;
+
+#define BUFFER_SIZE 2048
+
static volatile int stopflag = 0;
static int is_daemon = 0;
static int opt_debug = 0;
@@ -49,6 +70,8 @@ static const char *opt_storage_file = "/
static uid_t opt_uid = 0;
static gid_t opt_gid = 0;
static int tpm_startup = 2;
+static int vtpm_type = VTPM_TYPE_PVM;
+int dmi_id = 0;
static int rand_fh;
void tpm_log(int priority, const char *fmt, ...)
@@ -90,56 +113,241 @@ uint64_t tpm_get_ticks(void)
int tpm_write_to_file(uint8_t *data, size_t data_length)
{
- int fh;
- ssize_t res;
- fh = open(opt_storage_file, O_WRONLY | O_TRUNC | O_CREAT, S_IRUSR | S_IWUSR);
- if (fh < 0) return -1;
- while (data_length > 0) {
- res = write(fh, data, data_length);
- if (res < 0) {
- close(fh);
- return -1;
- }
- data_length -= res;
- data += res;
+ int res, out_data_size, in_header_size;
+ BYTE *ptr, *out_data, *in_header;
+ UINT32 result, len, in_rsp_size;
+ UINT16 tag = VTPM_TAG_REQ;
+
+ printf("Saving NVM\n");
+ if (vtpm_tx_fh < 0) {
+#ifdef VTPM_MUTLI_VM
+ vtpm_tx_fh = open(DEV_FE, O_RDWR);
+#else
+ vtpm_tx_fh = open(VTPM_TX_FIFO, O_WRONLY);
+#endif
+ }
+
+ if (vtpm_tx_fh < 0) {
+ return -1;
+ }
+
+ // Send request to VTPM Manager to encrypt data
+#ifdef VTPM_MUTLI_VM
+ out_data_size = len = VTPM_COMMAND_HEADER_SIZE_CLT + data_length;
+#else
+ out_data_size = len = VTPM_COMMAND_HEADER_SIZE_SRV + data_length;
+#endif
+
+ out_data = ptr = (BYTE *) malloc(len);
+
+ if (ptr == NULL
+#ifndef VTPM_MUTLI_VM
+ || tpm_marshal_UINT32(&ptr, &len, dmi_id)
+#endif
+ || tpm_marshal_UINT16(&ptr, &len, tag)
+#ifdef VTPM_MUTLI_VM
+ || tpm_marshal_UINT32(&ptr, &len, out_data_size)
+#else
+ || tpm_marshal_UINT32(&ptr, &len, out_data_size - sizeof(uint32_t))
+#endif
+ || tpm_marshal_UINT32(&ptr, &len, VTPM_ORD_SAVENVM)
+ || tpm_marshal_BYTE_ARRAY(&ptr, &len, data, data_length)) {
+ free(out_data);
+ return -1;
+ }
+
+ printf("\tSending SaveNVM Command.\n");
+ res = write(vtpm_tx_fh, out_data, out_data_size);
+ free(out_data);
+ if (res != out_data_size) return -1;
+
+ if (vtpm_rx_fh < 0) {
+#ifdef VTPM_MUTLI_VM
+ vtpm_rx_fh = vtpm_tx_fh
+#else
+ if (vtpm_rx_name == NULL) {
+ vtpm_rx_name = malloc(10 + strlen(VTPM_RX_FIFO_D));
+ sprintf(vtpm_rx_name, VTPM_RX_FIFO_D, (uint32_t) dmi_id);
}
- close(fh);
- return 0;
+ vtpm_rx_fh = open(vtpm_rx_name, O_RDONLY);
+#endif
+ }
+
+ if (vtpm_rx_fh < 0) {
+ return -1;
+ }
+
+ // Read Header of response so we can get the size & status
+#ifdef VTPM_MUTLI_VM
+ in_header_size = len = VTPM_COMMAND_HEADER_SIZE_CLT;
+#else
+ in_header_size = len = VTPM_COMMAND_HEADER_SIZE_SRV;
+#endif
+ in_header = ptr = malloc(in_header_size);
+
+ printf("\tReading SaveNVM header.\n");
+ res = read(vtpm_rx_fh, in_header, in_header_size);
+
+ if ( (res != in_header_size)
+#ifndef VTPM_MUTLI_VM
+ || tpm_unmarshal_UINT32(&ptr, &len, (UINT32*)&dmi_id)
+#endif
+ || tpm_unmarshal_UINT16(&ptr, &len, &tag)
+ || tpm_unmarshal_UINT32(&ptr, &len, &in_rsp_size)
+ || tpm_unmarshal_UINT32(&ptr, &len, &result) ) {
+ free(in_header);
+ return -1;
+ }
+ free(in_header);
+
+ if (result != VTPM_SUCCESS) {
+ return -1;
+ }
+
+#ifdef VTPM_MUTLI_VM
+ close(vtpm_tx_fh); close(vtpm_rx_fh);
+#endif
+
+ printf("\tFinishing up SaveNVM\n");
+ return (0);
}
int tpm_read_from_file(uint8_t **data, size_t *data_length)
{
- int fh;
- ssize_t res;
- size_t total_length;
- fh = open(opt_storage_file, O_RDONLY);
- if (fh < 0) return -1;
- total_length = lseek(fh, 0, SEEK_END);
- lseek(fh, 0, SEEK_SET);
- *data = tpm_malloc(total_length);
- if (*data == NULL) {
- close(fh);
- return -1;
- }
- *data_length = 0;
- while (total_length > 0) {
- res = read(fh, &(*data)[*data_length], total_length);
- if (res < 0) {
- close(fh);
- tpm_free(*data);
- return -1;
- }
- *data_length += res;
- total_length -= res;
+ int res, out_data_size, in_header_size;
+ uint8_t *ptr, *out_data, *in_header;
+ UINT16 tag = VTPM_TAG_REQ;
+ UINT32 len, in_rsp_size, result;
+#ifdef VTPM_MUTLI_VM
+ int vtpm_rx_fh, vtpm_tx_fh;
+#endif
+
+ printf("Loading NVM.\n");
+ if (vtpm_tx_fh < 0) {
+#ifdef VTPM_MUTLI_VM
+ vtpm_tx_fh = open(DEV_FE, O_RDWR);
+#else
+ vtpm_tx_fh = open(VTPM_TX_FIFO, O_WRONLY);
+#endif
+ }
+
+ if (vtpm_tx_fh < 0) {
+ printf("Error in read_from_file:301\n");
+ return -1;
+ }
+
+ // Send request to VTPM Manager to encrypt data
+#ifdef VTPM_MUTLI_VM
+ out_data_size = len = VTPM_COMMAND_HEADER_SIZE_CLT;
+#else
+ out_data_size = len = VTPM_COMMAND_HEADER_SIZE_SRV;
+#endif
+ out_data = ptr = (BYTE *) malloc(len);
+
+ if (ptr == NULL
+#ifndef VTPM_MUTLI_VM
+ || tpm_marshal_UINT32(&ptr, &len, dmi_id)
+#endif
+ || tpm_marshal_UINT16(&ptr, &len, tag)
+#ifdef VTPM_MUTLI_VM
+ || tpm_marshal_UINT32(&ptr, &len, out_data_size)
+#else
+ || tpm_marshal_UINT32(&ptr, &len, out_data_size - sizeof(uint32_t))
+#endif
+ || tpm_marshal_UINT32(&ptr, &len, VTPM_ORD_LOADNVM)) {
+ free(out_data);
+ printf("Error in read_from_file:325\n");
+
+ return -1;
+ }
+
+ printf("\tSending LoadNVM command\n");
+ res = write(vtpm_tx_fh, out_data, out_data_size);
+ free(out_data);
+ if (res != out_data_size)
+ {
+ printf("Error in read_from_file:335\n");
+ return -1;
+ }
+
+ if (vtpm_rx_fh < 0) {
+#ifdef VTPM_MUTLI_VM
+ vtpm_rx_fh = vtpm_tx_fh;
+#else
+ if (vtpm_rx_name == NULL) {
+ vtpm_rx_name = malloc(10 + strlen(VTPM_RX_FIFO_D));
+ sprintf(vtpm_rx_name, VTPM_RX_FIFO_D, (uint32_t) dmi_id);
}
- close(fh);
- return 0;
+ vtpm_rx_fh = open(vtpm_rx_name, O_RDONLY);
+#endif
+ }
+
+ if (vtpm_rx_fh < 0) {
+ printf("Error in read_from_file:352\n");
+ return -1;
+ }
+
+ // Read Header of response so we can get the size & status
+#ifdef VTPM_MUTLI_VM
+ in_header_size = len = VTPM_COMMAND_HEADER_SIZE_CLT;
+#else
+ in_header_size = len = VTPM_COMMAND_HEADER_SIZE_SRV;
+#endif
+ in_header = ptr = malloc(in_header_size);
+
+ printf("\tReading LoadNVM header\n");
+ res = read(vtpm_rx_fh, in_header, in_header_size);
+
+ if ( (res != in_header_size)
+#ifndef VTPM_MUTLI_VM
+ || tpm_unmarshal_UINT32(&ptr, &len, (UINT32*)&dmi_id)
+#endif
+ || tpm_unmarshal_UINT16(&ptr, &len, &tag)
+ || tpm_unmarshal_UINT32(&ptr, &len, &in_rsp_size)
+ || tpm_unmarshal_UINT32(&ptr, &len, &result) ) {
+ free(in_header);
+ printf("Error in read_from_file:375\n");
+ return -1;
+ }
+ free(in_header);
+
+ if (result != VTPM_SUCCESS) {
+ printf("Error in read_from_file:381\n");
+ return -1;
+ }
+
+ // Read Encrypted data from VTPM Manager
+ *data_length = in_rsp_size - VTPM_COMMAND_HEADER_SIZE_CLT;
+ *data = (uint8_t *) malloc(*data_length);
+
+ printf("\tReading clear data from LoadNVM.\n");
+ res = read(vtpm_rx_fh, *data, *data_length);
+#ifdef VTPM_MUTLI_VM
+ close(vtpm_rx_fh);close(vtpm_tx_fh);
+#endif
+
+ printf("\tReturing from loading NVM\n");
+ if (res != (int)*data_length) {
+ free(*data);
+ printf("Error in read_from_file:398\n");
+ return -1;
+ } else {
+ return 0;
+ }
+
+
+
}
static void print_usage(char *name)
{
printf("usage: %s [-d] [-f] [-s storage file] [-u unix socket name] "
- "[-o user name] [-g group name] [-h] [startup mode]\n", name);
+ "[-o user name] [-g group name] [-h]"
+#ifdef VTPM_MULTI_VM
+ "clear|save|deactivated\n", name);
+#else
+ "clear|save|deactivated pvm|hvm vtpmid\n", name);
+#endif
printf(" d : enable debug mode\n");
printf(" f : forces the application to run in the foreground\n");
printf(" s : storage file to use (default: %s)\n", opt_storage_file);
@@ -205,7 +413,13 @@ static void parse_options(int argc, char
exit(EXIT_SUCCESS);
}
}
- if (optind < argc) {
+ /*Make sure we have all required options*/
+#ifdef VTPM_MULTI_VM
+#define EXTRA_OPTS 0
+#else
+#define EXTRA_OPTS 2
+#endif
+ if (optind < argc - EXTRA_OPTS ) {
debug("startup mode = '%s'", argv[optind]);
if (!strcmp(argv[optind], "clear")) {
tpm_startup = 1;
@@ -219,6 +433,25 @@ static void parse_options(int argc, char
print_usage(argv[0]);
exit(EXIT_SUCCESS);
}
+#ifndef VTPM_MULTI_VM
+ ++optind;
+ if(!strcmp(argv[optind], "pvm")) {
+ vtpm_type = VTPM_TYPE_PVM; // Get commands from vTPM Manager through fifo
+ } else if (!strcmp(argv[optind], "hvm")) {
+ vtpm_type = VTPM_TYPE_HVM; // Get commands from qemu via socket
+ } else {
+ error("Invalid vm mode '%s'; must be 'pvm', "
+ "or 'hvm' ", argv[optind]);
+ print_usage(argv[0]);
+ exit(EXIT_SUCCESS);
+ }
+ ++optind;
+ dmi_id = atoi(argv[optind]);
+#endif
+ } else {
+ error("Invalid number of arguments");
+ print_usage(argv[0]);
+ exit(EXIT_SUCCESS);
}
}
@@ -348,93 +581,180 @@ static int init_socket(const char *name)
static void main_loop(void)
{
- int sock, fh, res;
- int32_t in_len;
+ int32_t in_len, written;
uint32_t out_len;
- uint8_t in[TPM_CMD_BUF_SIZE], *out;
+ uint8_t in[TPM_CMD_BUF_SIZE], *out, *addressed_out;
+ int guest_id=-1;
+ int i;
+ char *vtpm_rx_file=NULL;
+ int res;
+
+#ifndef VTPM_MULTI_VM
+ int sockfd = -1;
struct sockaddr_un addr;
- socklen_t addr_len;
- fd_set rfds;
- struct timeval tv;
+ struct sockaddr_un client_addr;
+ unsigned int client_length;
+#endif
+
+ int vtpm_tx_fh=-1, vtpm_rx_fh=-1;
+
+#ifndef VTPM_MULTI_VM
+ if (vtpm_type == VTPM_TYPE_PVM) {
+ vtpm_rx_file = malloc(10 + strlen(PVM_RX_FIFO_D));
+ sprintf(vtpm_rx_file, PVM_RX_FIFO_D, (uint32_t) dmi_id);
+ } else {
+ vtpm_rx_file = malloc(10 + strlen(HVM_RX_FIFO_D));
+ sprintf(vtpm_rx_file, HVM_RX_FIFO_D, (uint32_t) dmi_id);
+
+ if ( (sockfd = socket(PF_UNIX,SOCK_STREAM,0)) < 0) {
+ error("Unable to create socket. errno = %d\n", errno);
+ exit (-1);
+ }
+
+ memset(&addr, 0, sizeof(addr));
+ addr.sun_family = AF_UNIX;
+ strcpy(addr.sun_path,vtpm_rx_file );
+ unlink(addr.sun_path);
+ }
+#endif
info("staring main loop");
- /* open UNIX socket */
- sock = init_socket(opt_socket_name);
- if (sock < 0) exit(EXIT_FAILURE);
/* init tpm emulator */
- debug("initializing TPM emulator: %d", tpm_startup);
+#ifdef VTPM_MULTI_VM
+ debug("initializing TPM emulator: state=%d", tpm_startup);
+#else
+ debug("initializing TPM emulator: state=%d, type=%d, id=%d", tpm_startup, vtpm_type, dmi_id);
+#endif
tpm_emulator_init(tpm_startup);
/* start command processing */
while (!stopflag) {
/* wait for incomming connections */
debug("waiting for connections...");
- FD_ZERO(&rfds);
- FD_SET(sock, &rfds);
- tv.tv_sec = 10;
- tv.tv_usec = 0;
- res = select(sock + 1, &rfds, NULL, NULL, &tv);
- if (res < 0) {
- error("select(sock) failed: %s", strerror(errno));
- break;
- } else if (res == 0) {
- continue;
- }
- addr_len = sizeof(addr);
- fh = accept(sock, (struct sockaddr*)&addr, &addr_len);
- if (fh < 0) {
- error("accept() failed: %s", strerror(errno));
- continue;
- }
+ if (vtpm_rx_fh < 0) {
+#ifdef VTPM_MUTLI_VM
+ vtpm_rx_fh = open(DEV_BE, O_RDWR);
+#else
+ if (vtpm_type == VTPM_TYPE_PVM)
+ {
+ vtpm_rx_fh = open(vtpm_rx_file, O_RDONLY);
+ } else {
+ if (bind(sockfd, (struct sockaddr *)&addr, sizeof(addr)) < 0) {
+ error("Unable to bind(). errno = %d\n", errno);
+ exit (-1);
+ }
+
+ if (listen(sockfd, 10) <0) {
+ error("Unable to listen(). errno = %d\n", errno);
+ exit (-1);
+ }
+
+ memset(&client_addr, 0, sizeof(client_addr));
+ client_length = sizeof(client_addr);
+
+ vtpm_rx_fh = vtpm_tx_fh = accept(sockfd, (struct sockaddr *)&client_addr, &client_length);
+ }
+#endif
+ }
+
+ /*Error Checking*/
+ if (vtpm_rx_fh < 0) {
+ error("Failed to open devices to listen to guest.\n");
+ exit(-1);
+ }
+
/* receive and handle commands */
in_len = 0;
do {
debug("waiting for commands...");
- FD_ZERO(&rfds);
- FD_SET(fh, &rfds);
- tv.tv_sec = TPM_COMMAND_TIMEOUT;
- tv.tv_usec = 0;
- res = select(fh + 1, &rfds, NULL, NULL, &tv);
- if (res < 0) {
- error("select(fh) failed: %s", strerror(errno));
- close(fh);
- break;
- } else if (res == 0) {
-#ifdef TPMD_DISCONNECT_IDLE_CLIENTS
- info("connection closed due to inactivity");
- close(fh);
- break;
-#else
- continue;
-#endif
- }
- in_len = read(fh, in, sizeof(in));
- if (in_len > 0) {
+
+ in_len = read(vtpm_rx_fh, in, sizeof(in));
+ /*Magic size of minimum TPM command is 6*/
+ //FIXME Magic size check may not be required anymore
+ if (in_len < 6) {
+ info("Recv incomplete command of %d bytes.", in_len);
+ if (in_len <= 0) {
+ close(vtpm_rx_fh);
+ vtpm_rx_fh = -1;
+ continue;
+ }
+ } else {
+ /*Debug Printouts*/
debug("received %d bytes", in_len);
+ debug_nostop("Recv[%d]: 0x", in_len);
+ for (i=0; i< in_len; i++)
+ debug_more("%x ", in[i]);
+ debug_more("\n");
+ /*Multiple Guest check*/
+ if (guest_id == -1) {
+ guest_id = *((int32_t *) in);
+ } else {
+ if (guest_id != *((int32_t *) in) ) {
+ error("WARNING: More than one guest attached\n");
+ }
+ }
+
+ /*Open tx handle now*/
+ if (vtpm_tx_fh < 0) {
+#ifdef VTPM_MUTLI_VM
+ vtpm_tx_fh = open(DEV_BE, O_RDWR);
+ vtpm_rx_fh = vtpm_tx_fh;
+#else
+ if (vtpm_type == VTPM_TYPE_PVM) {
+ vtpm_tx_fh = open(PVM_TX_FIFO, O_WRONLY);
+ } // No need to open the other direction for HVM
+#endif
+ }
+ if (vtpm_tx_fh < 0) {
+ error("Failed to open devices to respond to guest.\n");
+ exit(-1);
+ }
+
+ /*Handle the TPM command now*/
out = NULL;
- res = tpm_handle_command(in, in_len, &out, &out_len);
+ res = tpm_handle_command(in + sizeof(uint32_t), in_len - sizeof(uint32_t), &out, &out_len);
if (res < 0) {
error("tpm_handle_command() failed");
} else {
debug("sending %d bytes", out_len);
+ //FIXME this prepending may or may not be needed
+ /*Prepend the first 4 bytes of the in buffer.. why?*/
+ addressed_out = (uint8_t *) tpm_malloc(sizeof(uint32_t) + out_len);
+ *(uint32_t *) addressed_out = *(uint32_t *) in;
+ memcpy(addressed_out + sizeof(uint32_t), out, out_len);
+ out_len += sizeof(uint32_t);
+ /*End Prepend*/
+
+ /*Perform write operation now*/
while (out_len > 0) {
- res = write(fh, out, out_len);
+ res = write(vtpm_tx_fh, addressed_out, out_len);
+
if (res < 0) {
error("write(%d) failed: %s", out_len, strerror(errno));
break;
- }
+ } else {
+ debug_nostop("Sent[%Zu]: ", out_len);
+ for (i=0; (unsigned int)i< out_len; i++)
+ debug_more("%x ", addressed_out[i]);
+ debug_more("\n");
+ }
out_len -= res;
}
tpm_free(out);
+ tpm_free(addressed_out);
}
}
} while (in_len > 0);
- close(fh);
+ //close(fh);
}
+
/* shutdown tpm emulator */
tpm_emulator_shutdown();
- /* close socket */
- close(sock);
- unlink(opt_socket_name);
+ /* Close handles */
+ close(vtpm_tx_fh);
+#ifndef VTPM_MULTI_VM
+ close(vtpm_rx_fh);
+ free(vtpm_rx_file);
+#endif
info("main loop stopped");
}
@@ -450,12 +770,13 @@ int main(int argc, char **argv)
/* open random device */
init_random();
/* init signal handlers */
- init_signal_handler();
+ //init_signal_handler();
/* unless requested otherwiese, fork and daemonize process */
- if (!opt_foreground) daemonize();
+ //if (!opt_foreground) daemonize();
/* start main processing loop */
main_loop();
info("stopping TPM Emulator daemon");
closelog();
return 0;
}
+
diff -Naurp tpm_emulator-0.5.1/tpmd/tpm_emulator_config.h tpm5-test/tpmd/tpm_emulator_config.h
--- tpm_emulator-0.5.1/tpmd/tpm_emulator_config.h 2008-02-14 03:22:48.000000000 -0500
+++ tpm5-test/tpmd/tpm_emulator_config.h 2009-07-16 11:25:26.000000000 -0400
@@ -29,23 +29,28 @@
/* TPM emulator configuration */
-#undef TPM_STRONG_PERSISTENCE
-#undef TPM_GENERATE_EK
+#define TPM_STRONG_PERSISTENCE
+#define TPM_GENERATE_EK
#undef TPM_GENERATE_SEED_DAA
#undef TPM_MEMORY_ALIGNMENT_MANDATORY
+extern int dmi_id;
+
/* log macros */
void tpm_log(int priority, const char *fmt, ...);
-#define debug(fmt, ...) tpm_log(LOG_DEBUG, "%s:%d: Debug: " fmt "\n", \
- __FILE__, __LINE__, ## __VA_ARGS__)
-#define info(fmt, ...) tpm_log(LOG_INFO, "%s:%d: Info: " fmt "\n", \
- __FILE__, __LINE__, ## __VA_ARGS__)
-#define error(fmt, ...) tpm_log(LOG_ERR, "%s:%d: Error: " fmt "\n", \
- __FILE__, __LINE__, ## __VA_ARGS__)
-#define alert(fmt, ...) tpm_log(LOG_ALERT, "%s:%d: Alert: " fmt "\n", \
- __FILE__, __LINE__, ## __VA_ARGS__)
+#define debug(fmt, ...) tpm_log(LOG_DEBUG, "VTPMD[%d]: %s:%d: Debug: " fmt "\n", \
+ dmi_id, __FILE__, __LINE__, ## __VA_ARGS__)
+#define info(fmt, ...) tpm_log(LOG_INFO, "VTPMD[%d]: %s:%d: Info: " fmt "\n", \
+ dmi_id, __FILE__, __LINE__, ## __VA_ARGS__)
+#define error(fmt, ...) tpm_log(LOG_ERR, "VTPMD[%d]: %s:%d: Error: " fmt "\n", \
+ dmi_id, __FILE__, __LINE__, ## __VA_ARGS__)
+#define alert(fmt, ...) tpm_log(LOG_ALERT, "VTPMD[%d]: %s:%d: Alert: " fmt "\n", \
+ dmi_id, __FILE__, __LINE__, ## __VA_ARGS__)
+#define debug_nostop(fmt, ...) tpm_log(LOG_DEBUG, "VTPMD[%d]: %s:%d: Debug: " fmt, \
+ dmi_id, __FILE__, __LINE__, ## __VA_ARGS__)
+#define debug_more(fmt, ...) tpm_log(LOG_DEBUG, fmt, ## __VA_ARGS__)
/* min/max macros that also do strict type-checking */
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