658 lines
21 KiB
C
658 lines
21 KiB
C
/*
|
|
* Tester for VSCARD protocol, client side.
|
|
*
|
|
* Can be used with ccid-card-passthru.
|
|
*
|
|
* Copyright (c) 2011 Red Hat.
|
|
* Written by Alon Levy.
|
|
*
|
|
* This work is licensed under the terms of the GNU LGPL, version 2.1 or later.
|
|
* See the COPYING.LIB file in the top-level directory.
|
|
*/
|
|
|
|
#include <netdb.h>
|
|
|
|
#include "qemu-common.h"
|
|
#include "qemu/thread.h"
|
|
#include "qemu/sockets.h"
|
|
|
|
#include "vscard_common.h"
|
|
|
|
#include "vreader.h"
|
|
#include "vcard_emul.h"
|
|
#include "vevent.h"
|
|
|
|
int verbose;
|
|
|
|
int sock;
|
|
|
|
static void
|
|
print_byte_array(
|
|
uint8_t *arrBytes,
|
|
unsigned int nSize
|
|
) {
|
|
int i;
|
|
for (i = 0; i < nSize; i++) {
|
|
printf("%02X ", arrBytes[i]);
|
|
}
|
|
printf("\n");
|
|
}
|
|
|
|
static void
|
|
print_usage(void) {
|
|
printf("vscclient [-c <certname> .. -e <emul_args> -d <level>%s] "
|
|
"<host> <port>\n",
|
|
#ifdef USE_PASSTHRU
|
|
" -p");
|
|
printf(" -p use passthrough mode\n");
|
|
#else
|
|
"");
|
|
#endif
|
|
vcard_emul_usage();
|
|
}
|
|
|
|
static QemuMutex write_lock;
|
|
|
|
static int
|
|
send_msg(
|
|
VSCMsgType type,
|
|
uint32_t reader_id,
|
|
const void *msg,
|
|
unsigned int length
|
|
) {
|
|
int rv;
|
|
VSCMsgHeader mhHeader;
|
|
|
|
qemu_mutex_lock(&write_lock);
|
|
|
|
if (verbose > 10) {
|
|
printf("sending type=%d id=%u, len =%u (0x%x)\n",
|
|
type, reader_id, length, length);
|
|
}
|
|
|
|
mhHeader.type = htonl(type);
|
|
mhHeader.reader_id = 0;
|
|
mhHeader.length = htonl(length);
|
|
rv = write(sock, &mhHeader, sizeof(mhHeader));
|
|
if (rv < 0) {
|
|
/* Error */
|
|
fprintf(stderr, "write header error\n");
|
|
close(sock);
|
|
qemu_mutex_unlock(&write_lock);
|
|
return 16;
|
|
}
|
|
rv = write(sock, msg, length);
|
|
if (rv < 0) {
|
|
/* Error */
|
|
fprintf(stderr, "write error\n");
|
|
close(sock);
|
|
qemu_mutex_unlock(&write_lock);
|
|
return 16;
|
|
}
|
|
qemu_mutex_unlock(&write_lock);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static VReader *pending_reader;
|
|
static QemuMutex pending_reader_lock;
|
|
static QemuCond pending_reader_condition;
|
|
|
|
#define MAX_ATR_LEN 40
|
|
static void *
|
|
event_thread(void *arg)
|
|
{
|
|
unsigned char atr[MAX_ATR_LEN];
|
|
int atr_len = MAX_ATR_LEN;
|
|
VEvent *event = NULL;
|
|
unsigned int reader_id;
|
|
|
|
|
|
while (1) {
|
|
const char *reader_name;
|
|
|
|
event = vevent_wait_next_vevent();
|
|
if (event == NULL) {
|
|
break;
|
|
}
|
|
reader_id = vreader_get_id(event->reader);
|
|
if (reader_id == VSCARD_UNDEFINED_READER_ID &&
|
|
event->type != VEVENT_READER_INSERT) {
|
|
/* ignore events from readers qemu has rejected */
|
|
/* if qemu is still deciding on this reader, wait to see if need to
|
|
* forward this event */
|
|
qemu_mutex_lock(&pending_reader_lock);
|
|
if (!pending_reader || (pending_reader != event->reader)) {
|
|
/* wasn't for a pending reader, this reader has already been
|
|
* rejected by qemu */
|
|
qemu_mutex_unlock(&pending_reader_lock);
|
|
vevent_delete(event);
|
|
continue;
|
|
}
|
|
/* this reader hasn't been told its status from qemu yet, wait for
|
|
* that status */
|
|
while (pending_reader != NULL) {
|
|
qemu_cond_wait(&pending_reader_condition, &pending_reader_lock);
|
|
}
|
|
qemu_mutex_unlock(&pending_reader_lock);
|
|
/* now recheck the id */
|
|
reader_id = vreader_get_id(event->reader);
|
|
if (reader_id == VSCARD_UNDEFINED_READER_ID) {
|
|
/* this reader was rejected */
|
|
vevent_delete(event);
|
|
continue;
|
|
}
|
|
/* reader was accepted, now forward the event */
|
|
}
|
|
switch (event->type) {
|
|
case VEVENT_READER_INSERT:
|
|
/* tell qemu to insert a new CCID reader */
|
|
/* wait until qemu has responded to our first reader insert
|
|
* before we send a second. That way we won't confuse the responses
|
|
* */
|
|
qemu_mutex_lock(&pending_reader_lock);
|
|
while (pending_reader != NULL) {
|
|
qemu_cond_wait(&pending_reader_condition, &pending_reader_lock);
|
|
}
|
|
pending_reader = vreader_reference(event->reader);
|
|
qemu_mutex_unlock(&pending_reader_lock);
|
|
reader_name = vreader_get_name(event->reader);
|
|
if (verbose > 10) {
|
|
printf(" READER INSERT: %s\n", reader_name);
|
|
}
|
|
send_msg(VSC_ReaderAdd,
|
|
reader_id, /* currerntly VSCARD_UNDEFINED_READER_ID */
|
|
NULL, 0 /* TODO reader_name, strlen(reader_name) */);
|
|
break;
|
|
case VEVENT_READER_REMOVE:
|
|
/* future, tell qemu that an old CCID reader has been removed */
|
|
if (verbose > 10) {
|
|
printf(" READER REMOVE: %u\n", reader_id);
|
|
}
|
|
send_msg(VSC_ReaderRemove, reader_id, NULL, 0);
|
|
break;
|
|
case VEVENT_CARD_INSERT:
|
|
/* get the ATR (intended as a response to a power on from the
|
|
* reader */
|
|
atr_len = MAX_ATR_LEN;
|
|
vreader_power_on(event->reader, atr, &atr_len);
|
|
/* ATR call functions as a Card Insert event */
|
|
if (verbose > 10) {
|
|
printf(" CARD INSERT %u: ", reader_id);
|
|
print_byte_array(atr, atr_len);
|
|
}
|
|
send_msg(VSC_ATR, reader_id, atr, atr_len);
|
|
break;
|
|
case VEVENT_CARD_REMOVE:
|
|
/* Card removed */
|
|
if (verbose > 10) {
|
|
printf(" CARD REMOVE %u:\n", reader_id);
|
|
}
|
|
send_msg(VSC_CardRemove, reader_id, NULL, 0);
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
vevent_delete(event);
|
|
}
|
|
return NULL;
|
|
}
|
|
|
|
|
|
static unsigned int
|
|
get_id_from_string(char *string, unsigned int default_id)
|
|
{
|
|
unsigned int id = atoi(string);
|
|
|
|
/* don't accidentally swith to zero because no numbers have been supplied */
|
|
if ((id == 0) && *string != '0') {
|
|
return default_id;
|
|
}
|
|
return id;
|
|
}
|
|
|
|
static void
|
|
do_command(void)
|
|
{
|
|
char inbuf[255];
|
|
char *string;
|
|
VCardEmulError error;
|
|
static unsigned int default_reader_id;
|
|
unsigned int reader_id;
|
|
VReader *reader = NULL;
|
|
|
|
reader_id = default_reader_id;
|
|
string = fgets(inbuf, sizeof(inbuf), stdin);
|
|
if (string != NULL) {
|
|
if (strncmp(string, "exit", 4) == 0) {
|
|
/* remove all the readers */
|
|
VReaderList *list = vreader_get_reader_list();
|
|
VReaderListEntry *reader_entry;
|
|
printf("Active Readers:\n");
|
|
for (reader_entry = vreader_list_get_first(list); reader_entry;
|
|
reader_entry = vreader_list_get_next(reader_entry)) {
|
|
VReader *reader = vreader_list_get_reader(reader_entry);
|
|
vreader_id_t reader_id;
|
|
reader_id = vreader_get_id(reader);
|
|
if (reader_id == -1) {
|
|
continue;
|
|
}
|
|
/* be nice and signal card removal first (qemu probably should
|
|
* do this itself) */
|
|
if (vreader_card_is_present(reader) == VREADER_OK) {
|
|
send_msg(VSC_CardRemove, reader_id, NULL, 0);
|
|
}
|
|
send_msg(VSC_ReaderRemove, reader_id, NULL, 0);
|
|
}
|
|
exit(0);
|
|
} else if (strncmp(string, "insert", 6) == 0) {
|
|
if (string[6] == ' ') {
|
|
reader_id = get_id_from_string(&string[7], reader_id);
|
|
}
|
|
reader = vreader_get_reader_by_id(reader_id);
|
|
if (reader != NULL) {
|
|
error = vcard_emul_force_card_insert(reader);
|
|
printf("insert %s, returned %d\n",
|
|
reader ? vreader_get_name(reader)
|
|
: "invalid reader", error);
|
|
} else {
|
|
printf("no reader by id %u found\n", reader_id);
|
|
}
|
|
} else if (strncmp(string, "remove", 6) == 0) {
|
|
if (string[6] == ' ') {
|
|
reader_id = get_id_from_string(&string[7], reader_id);
|
|
}
|
|
reader = vreader_get_reader_by_id(reader_id);
|
|
if (reader != NULL) {
|
|
error = vcard_emul_force_card_remove(reader);
|
|
printf("remove %s, returned %d\n",
|
|
reader ? vreader_get_name(reader)
|
|
: "invalid reader", error);
|
|
} else {
|
|
printf("no reader by id %u found\n", reader_id);
|
|
}
|
|
} else if (strncmp(string, "select", 6) == 0) {
|
|
if (string[6] == ' ') {
|
|
reader_id = get_id_from_string(&string[7],
|
|
VSCARD_UNDEFINED_READER_ID);
|
|
}
|
|
if (reader_id != VSCARD_UNDEFINED_READER_ID) {
|
|
reader = vreader_get_reader_by_id(reader_id);
|
|
}
|
|
if (reader) {
|
|
printf("Selecting reader %u, %s\n", reader_id,
|
|
vreader_get_name(reader));
|
|
default_reader_id = reader_id;
|
|
} else {
|
|
printf("Reader with id %u not found\n", reader_id);
|
|
}
|
|
} else if (strncmp(string, "debug", 5) == 0) {
|
|
if (string[5] == ' ') {
|
|
verbose = get_id_from_string(&string[6], 0);
|
|
}
|
|
printf("debug level = %d\n", verbose);
|
|
} else if (strncmp(string, "list", 4) == 0) {
|
|
VReaderList *list = vreader_get_reader_list();
|
|
VReaderListEntry *reader_entry;
|
|
printf("Active Readers:\n");
|
|
for (reader_entry = vreader_list_get_first(list); reader_entry;
|
|
reader_entry = vreader_list_get_next(reader_entry)) {
|
|
VReader *reader = vreader_list_get_reader(reader_entry);
|
|
vreader_id_t reader_id;
|
|
reader_id = vreader_get_id(reader);
|
|
if (reader_id == -1) {
|
|
continue;
|
|
}
|
|
printf("%3u %s %s\n", reader_id,
|
|
vreader_card_is_present(reader) == VREADER_OK ?
|
|
"CARD_PRESENT" : " ",
|
|
vreader_get_name(reader));
|
|
}
|
|
printf("Inactive Readers:\n");
|
|
for (reader_entry = vreader_list_get_first(list); reader_entry;
|
|
reader_entry = vreader_list_get_next(reader_entry)) {
|
|
VReader *reader = vreader_list_get_reader(reader_entry);
|
|
vreader_id_t reader_id;
|
|
reader_id = vreader_get_id(reader);
|
|
if (reader_id != -1) {
|
|
continue;
|
|
}
|
|
|
|
printf("INA %s %s\n",
|
|
vreader_card_is_present(reader) == VREADER_OK ?
|
|
"CARD_PRESENT" : " ",
|
|
vreader_get_name(reader));
|
|
}
|
|
} else if (*string != 0) {
|
|
printf("valid commands:\n");
|
|
printf("insert [reader_id]\n");
|
|
printf("remove [reader_id]\n");
|
|
printf("select reader_id\n");
|
|
printf("list\n");
|
|
printf("debug [level]\n");
|
|
printf("exit\n");
|
|
}
|
|
}
|
|
vreader_free(reader);
|
|
printf("> ");
|
|
fflush(stdout);
|
|
}
|
|
|
|
|
|
#define APDUBufSize 270
|
|
|
|
/* just for ease of parsing command line arguments. */
|
|
#define MAX_CERTS 100
|
|
|
|
static int
|
|
connect_to_qemu(
|
|
const char *host,
|
|
const char *port
|
|
) {
|
|
struct addrinfo hints;
|
|
struct addrinfo *server;
|
|
int ret;
|
|
|
|
sock = qemu_socket(AF_INET, SOCK_STREAM, 0);
|
|
if (sock < 0) {
|
|
/* Error */
|
|
fprintf(stderr, "Error opening socket!\n");
|
|
return -1;
|
|
}
|
|
|
|
memset(&hints, 0, sizeof(struct addrinfo));
|
|
hints.ai_family = AF_UNSPEC;
|
|
hints.ai_socktype = SOCK_STREAM;
|
|
hints.ai_flags = 0;
|
|
hints.ai_protocol = 0; /* Any protocol */
|
|
|
|
ret = getaddrinfo(host, port, &hints, &server);
|
|
|
|
if (ret != 0) {
|
|
/* Error */
|
|
fprintf(stderr, "getaddrinfo failed\n");
|
|
return -1;
|
|
}
|
|
|
|
if (connect(sock, server->ai_addr, server->ai_addrlen) < 0) {
|
|
/* Error */
|
|
fprintf(stderr, "Could not connect\n");
|
|
return -1;
|
|
}
|
|
if (verbose) {
|
|
printf("Connected (sizeof Header=%zd)!\n", sizeof(VSCMsgHeader));
|
|
}
|
|
return sock;
|
|
}
|
|
|
|
static int on_host_init(VSCMsgHeader *mhHeader, VSCMsgInit *incoming)
|
|
{
|
|
uint32_t *capabilities = (incoming->capabilities);
|
|
int num_capabilities =
|
|
1 + ((mhHeader->length - sizeof(VSCMsgInit)) / sizeof(uint32_t));
|
|
int i;
|
|
int rv;
|
|
pthread_t thread_id;
|
|
|
|
incoming->version = ntohl(incoming->version);
|
|
if (incoming->version != VSCARD_VERSION) {
|
|
if (verbose > 0) {
|
|
printf("warning: host has version %d, we have %d\n",
|
|
verbose, VSCARD_VERSION);
|
|
}
|
|
}
|
|
if (incoming->magic != VSCARD_MAGIC) {
|
|
printf("unexpected magic: got %d, expected %d\n",
|
|
incoming->magic, VSCARD_MAGIC);
|
|
return -1;
|
|
}
|
|
for (i = 0 ; i < num_capabilities; ++i) {
|
|
capabilities[i] = ntohl(capabilities[i]);
|
|
}
|
|
/* Future: check capabilities */
|
|
/* remove whatever reader might be left in qemu,
|
|
* in case of an unclean previous exit. */
|
|
send_msg(VSC_ReaderRemove, VSCARD_MINIMAL_READER_ID, NULL, 0);
|
|
/* launch the event_thread. This will trigger reader adds for all the
|
|
* existing readers */
|
|
rv = pthread_create(&thread_id, NULL, event_thread, NULL);
|
|
if (rv < 0) {
|
|
perror("pthread_create");
|
|
return rv;
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
int
|
|
main(
|
|
int argc,
|
|
char *argv[]
|
|
) {
|
|
char *qemu_host;
|
|
char *qemu_port;
|
|
VSCMsgHeader mhHeader;
|
|
VSCMsgError *error_msg;
|
|
|
|
int rv;
|
|
int dwSendLength;
|
|
int dwRecvLength;
|
|
uint8_t pbRecvBuffer[APDUBufSize];
|
|
uint8_t pbSendBuffer[APDUBufSize];
|
|
VReaderStatus reader_status;
|
|
VReader *reader = NULL;
|
|
VCardEmulOptions *command_line_options = NULL;
|
|
|
|
char *cert_names[MAX_CERTS];
|
|
char *emul_args = NULL;
|
|
int cert_count = 0;
|
|
int c;
|
|
|
|
while ((c = getopt(argc, argv, "c:e:pd:")) != -1) {
|
|
switch (c) {
|
|
case 'c':
|
|
if (cert_count >= MAX_CERTS) {
|
|
printf("too many certificates (max = %d)\n", MAX_CERTS);
|
|
exit(5);
|
|
}
|
|
cert_names[cert_count++] = optarg;
|
|
break;
|
|
case 'e':
|
|
emul_args = optarg;
|
|
break;
|
|
case 'p':
|
|
print_usage();
|
|
exit(4);
|
|
break;
|
|
case 'd':
|
|
verbose = get_id_from_string(optarg, 1);
|
|
break;
|
|
}
|
|
}
|
|
|
|
if (argc - optind != 2) {
|
|
print_usage();
|
|
exit(4);
|
|
}
|
|
|
|
if (cert_count > 0) {
|
|
char *new_args;
|
|
int len, i;
|
|
/* if we've given some -c options, we clearly we want do so some
|
|
* software emulation. add that emulation now. this is NSS Emulator
|
|
* specific */
|
|
if (emul_args == NULL) {
|
|
emul_args = (char *)"db=\"/etc/pki/nssdb\"";
|
|
}
|
|
#define SOFT_STRING ",soft=(,Virtual Reader,CAC,,"
|
|
/* 2 == close paren & null */
|
|
len = strlen(emul_args) + strlen(SOFT_STRING) + 2;
|
|
for (i = 0; i < cert_count; i++) {
|
|
len += strlen(cert_names[i])+1; /* 1 == comma */
|
|
}
|
|
new_args = g_malloc(len);
|
|
strcpy(new_args, emul_args);
|
|
strcat(new_args, SOFT_STRING);
|
|
for (i = 0; i < cert_count; i++) {
|
|
strcat(new_args, cert_names[i]);
|
|
strcat(new_args, ",");
|
|
}
|
|
strcat(new_args, ")");
|
|
emul_args = new_args;
|
|
}
|
|
if (emul_args) {
|
|
command_line_options = vcard_emul_options(emul_args);
|
|
}
|
|
|
|
qemu_host = strdup(argv[argc - 2]);
|
|
qemu_port = strdup(argv[argc - 1]);
|
|
sock = connect_to_qemu(qemu_host, qemu_port);
|
|
if (sock == -1) {
|
|
fprintf(stderr, "error opening socket, exiting.\n");
|
|
exit(5);
|
|
}
|
|
|
|
qemu_mutex_init(&write_lock);
|
|
qemu_mutex_init(&pending_reader_lock);
|
|
qemu_cond_init(&pending_reader_condition);
|
|
|
|
vcard_emul_init(command_line_options);
|
|
|
|
printf("> ");
|
|
fflush(stdout);
|
|
|
|
/* Send init message, Host responds (and then we send reader attachments) */
|
|
VSCMsgInit init = {
|
|
.version = htonl(VSCARD_VERSION),
|
|
.magic = VSCARD_MAGIC,
|
|
.capabilities = {0}
|
|
};
|
|
send_msg(VSC_Init, mhHeader.reader_id, &init, sizeof(init));
|
|
|
|
do {
|
|
fd_set fds;
|
|
|
|
FD_ZERO(&fds);
|
|
FD_SET(1, &fds);
|
|
FD_SET(sock, &fds);
|
|
|
|
/* waiting on input from the socket */
|
|
rv = select(sock+1, &fds, NULL, NULL, NULL);
|
|
if (rv < 0) {
|
|
/* handle error */
|
|
perror("select");
|
|
return 7;
|
|
}
|
|
if (FD_ISSET(1, &fds)) {
|
|
do_command();
|
|
}
|
|
if (!FD_ISSET(sock, &fds)) {
|
|
continue;
|
|
}
|
|
|
|
rv = read(sock, &mhHeader, sizeof(mhHeader));
|
|
if (rv < sizeof(mhHeader)) {
|
|
/* Error */
|
|
if (rv < 0) {
|
|
perror("header read error\n");
|
|
} else {
|
|
fprintf(stderr, "header short read %d\n", rv);
|
|
}
|
|
return 8;
|
|
}
|
|
mhHeader.type = ntohl(mhHeader.type);
|
|
mhHeader.reader_id = ntohl(mhHeader.reader_id);
|
|
mhHeader.length = ntohl(mhHeader.length);
|
|
if (verbose) {
|
|
printf("Header: type=%d, reader_id=%u length=%d (0x%x)\n",
|
|
mhHeader.type, mhHeader.reader_id, mhHeader.length,
|
|
mhHeader.length);
|
|
}
|
|
switch (mhHeader.type) {
|
|
case VSC_APDU:
|
|
case VSC_Flush:
|
|
case VSC_Error:
|
|
case VSC_Init:
|
|
rv = read(sock, pbSendBuffer, mhHeader.length);
|
|
break;
|
|
default:
|
|
fprintf(stderr, "Unexpected message of type 0x%X\n", mhHeader.type);
|
|
return 0;
|
|
}
|
|
switch (mhHeader.type) {
|
|
case VSC_APDU:
|
|
if (rv < 0) {
|
|
/* Error */
|
|
fprintf(stderr, "read error\n");
|
|
close(sock);
|
|
return 8;
|
|
}
|
|
if (verbose) {
|
|
printf(" recv APDU: ");
|
|
print_byte_array(pbSendBuffer, mhHeader.length);
|
|
}
|
|
/* Transmit received APDU */
|
|
dwSendLength = mhHeader.length;
|
|
dwRecvLength = sizeof(pbRecvBuffer);
|
|
reader = vreader_get_reader_by_id(mhHeader.reader_id);
|
|
reader_status = vreader_xfr_bytes(reader,
|
|
pbSendBuffer, dwSendLength,
|
|
pbRecvBuffer, &dwRecvLength);
|
|
if (reader_status == VREADER_OK) {
|
|
mhHeader.length = dwRecvLength;
|
|
if (verbose) {
|
|
printf(" send response: ");
|
|
print_byte_array(pbRecvBuffer, mhHeader.length);
|
|
}
|
|
send_msg(VSC_APDU, mhHeader.reader_id,
|
|
pbRecvBuffer, dwRecvLength);
|
|
} else {
|
|
rv = reader_status; /* warning: not meaningful */
|
|
send_msg(VSC_Error, mhHeader.reader_id, &rv, sizeof(uint32_t));
|
|
}
|
|
vreader_free(reader);
|
|
reader = NULL; /* we've freed it, don't use it by accident
|
|
again */
|
|
break;
|
|
case VSC_Flush:
|
|
/* TODO: actually flush */
|
|
send_msg(VSC_FlushComplete, mhHeader.reader_id, NULL, 0);
|
|
break;
|
|
case VSC_Error:
|
|
error_msg = (VSCMsgError *) pbSendBuffer;
|
|
if (error_msg->code == VSC_SUCCESS) {
|
|
qemu_mutex_lock(&pending_reader_lock);
|
|
if (pending_reader) {
|
|
vreader_set_id(pending_reader, mhHeader.reader_id);
|
|
vreader_free(pending_reader);
|
|
pending_reader = NULL;
|
|
qemu_cond_signal(&pending_reader_condition);
|
|
}
|
|
qemu_mutex_unlock(&pending_reader_lock);
|
|
break;
|
|
}
|
|
printf("warning: qemu refused to add reader\n");
|
|
if (error_msg->code == VSC_CANNOT_ADD_MORE_READERS) {
|
|
/* clear pending reader, qemu can't handle any more */
|
|
qemu_mutex_lock(&pending_reader_lock);
|
|
if (pending_reader) {
|
|
pending_reader = NULL;
|
|
/* make sure the event loop doesn't hang */
|
|
qemu_cond_signal(&pending_reader_condition);
|
|
}
|
|
qemu_mutex_unlock(&pending_reader_lock);
|
|
}
|
|
break;
|
|
case VSC_Init:
|
|
if (on_host_init(&mhHeader, (VSCMsgInit *)pbSendBuffer) < 0) {
|
|
return -1;
|
|
}
|
|
break;
|
|
default:
|
|
printf("Default\n");
|
|
return 0;
|
|
}
|
|
} while (rv >= 0);
|
|
|
|
return 0;
|
|
}
|