ssize_t read_file(unsigned char *buffer, size_t len,
const char *path_fmt, ...)
{
va_list ap;
char *path;
ssize_t r;
int fd;
va_start(ap, path_fmt);
path = g_strdup_vprintf(path_fmt, ap);
va_end(ap);
fd = TFR(open(path, O_RDONLY));
g_free(path);
if (fd == -1)
return -1;
r = TFR(read(fd, buffer, len));
TFR(close(fd));
return r;
}
ssize_t write_file(const unsigned char *buffer, size_t len, mode_t mode,
const char *path_fmt, ...)
{
va_list ap;
char *path;
ssize_t r;
int fd;
va_start(ap, path_fmt);
path = g_strdup_vprintf(path_fmt, ap);
va_end(ap);
if (create_dirs(path, mode | S_IXUSR) != 0) {
g_free(path);
return -1;
}
fd = TFR(open(path, O_WRONLY | O_CREAT | O_TRUNC, mode));
if (fd == -1) {
g_free(path);
return -1;
}
r = TFR(write(fd, buffer, len));
TFR(close(fd));
if (r != (ssize_t) len) {
unlink(path);
r = -1;
}
g_free(path);
return r;
}
int tap_open(char *ifname, int ifname_size, int *vnet_hdr, int vnet_hdr_required)
{
int fd;
char *dev;
struct stat s;
#if defined(__FreeBSD__) || defined(__FreeBSD_kernel__)
/* if no ifname is given, always start the search from tap0. */
int i;
char dname[100];
for (i = 0; i < 10; i++) {
if (*ifname) {
snprintf(dname, sizeof dname, "/dev/%s", ifname);
} else {
snprintf(dname, sizeof dname, "/dev/tap%d", i);
}
TFR(fd = open(dname, O_RDWR));
if (fd >= 0) {
break;
}
else if (errno == ENXIO || errno == ENOENT) {
break;
}
if (*ifname) {
break;
}
}
if (fd < 0) {
error_report("warning: could not open %s (%s): no virtual network emulation",
dname, strerror(errno));
return -1;
}
#else
TFR(fd = open("/dev/tap", O_RDWR));
if (fd < 0) {
fprintf(stderr, "warning: could not open /dev/tap: no virtual network emulation\n");
return -1;
}
#endif
fstat(fd, &s);
dev = devname(s.st_rdev, S_IFCHR);
pstrcpy(ifname, ifname_size, dev);
if (*vnet_hdr) {
/* BSD doesn't have IFF_VNET_HDR */
*vnet_hdr = 0;
if (vnet_hdr_required && !*vnet_hdr) {
error_report("vnet_hdr=1 requested, but no kernel "
"support for IFF_VNET_HDR available");
close(fd);
return -1;
}
}
fcntl(fd, F_SETFL, O_NONBLOCK);
return fd;
}
static int stats_file_setup(struct stats_file *file)
{
struct stats_file_header *hdr;
struct stat st;
size_t size = 0;
int err;
DBG("file %p fd %d name %s", file, file->fd, file->name);
err = fstat(file->fd, &st);
if (err < 0) {
connman_error("fstat error %s for %s\n",
strerror(errno), file->name);
TFR(close(file->fd));
g_free(file->name);
file->name = NULL;
return -errno;
}
size = (size_t)st.st_size;
file->max_len = STATS_MAX_FILE_SIZE;
if (size < (size_t)sysconf(_SC_PAGESIZE))
size = sysconf(_SC_PAGESIZE);
err = stats_file_remap(file, size);
if (err < 0) {
TFR(close(file->fd));
g_free(file->name);
file->name = NULL;
return err;
}
hdr = get_hdr(file);
if (hdr->magic != MAGIC ||
hdr->begin < sizeof(struct stats_file_header) ||
hdr->end < sizeof(struct stats_file_header) ||
hdr->home < sizeof(struct stats_file_header) ||
hdr->roaming < sizeof(struct stats_file_header) ||
hdr->begin > file->len ||
hdr->end > file->len) {
hdr->magic = MAGIC;
hdr->begin = sizeof(struct stats_file_header);
hdr->end = sizeof(struct stats_file_header);
hdr->home = UINT_MAX;
hdr->roaming = UINT_MAX;
stats_file_update_cache(file);
}
return 0;
}
static int net_tap_init(QemuOpts *opts, int *vnet_hdr)
{
int fd, vnet_hdr_required;
char ifname[128] = {0,};
const char *setup_script;
if (qemu_opt_get(opts, "ifname")) {
pstrcpy(ifname, sizeof(ifname), qemu_opt_get(opts, "ifname"));
}
*vnet_hdr = qemu_opt_get_bool(opts, "vnet_hdr", 1);
if (qemu_opt_get(opts, "vnet_hdr")) {
vnet_hdr_required = *vnet_hdr;
} else {
vnet_hdr_required = 0;
}
TFR(fd = tap_open(ifname, sizeof(ifname), vnet_hdr, vnet_hdr_required));
if (fd < 0) {
return -1;
}
setup_script = qemu_opt_get(opts, "script");
if (setup_script &&
setup_script[0] != '\0' &&
strcmp(setup_script, "no") != 0 &&
launch_script(setup_script, ifname, fd)) {
close(fd);
return -1;
}
qemu_opt_set(opts, "ifname", ifname);
return fd;
}
static void stats_free(gpointer user_data)
{
struct stats_file *file = user_data;
if (!file)
return;
msync(file->addr, file->len, MS_SYNC);
munmap(file->addr, file->len);
file->addr = NULL;
TFR(close(file->fd));
file->fd = -1;
if (file->history_name) {
g_free(file->history_name);
file->history_name = NULL;
}
if (file->name) {
g_free(file->name);
file->name = NULL;
}
g_free(file);
}
static int rtc_start_timer(struct qemu_alarm_timer *t)
{
int rtc_fd;
unsigned long current_rtc_freq = 0;
TFR(rtc_fd = qemu_open("/dev/rtc", O_RDONLY));
if (rtc_fd < 0)
return -1;
ioctl(rtc_fd, RTC_IRQP_READ, ¤t_rtc_freq);
if (current_rtc_freq != RTC_FREQ &&
ioctl(rtc_fd, RTC_IRQP_SET, RTC_FREQ) < 0) {
fprintf(stderr, "Could not configure '/dev/rtc' to have a 1024 Hz timer. This is not a fatal\n"
"error, but for better emulation accuracy either use a 2.6 host Linux kernel or\n"
"type 'echo 1024 > /proc/sys/dev/rtc/max-user-freq' as root.\n");
goto fail;
}
if (ioctl(rtc_fd, RTC_PIE_ON, 0) < 0) {
fail:
close(rtc_fd);
return -1;
}
enable_sigio_timer(rtc_fd);
t->priv = (void *)(long)rtc_fd;
return 0;
}
static int net_tap_init(const NetdevTapOptions *tap, int *vnet_hdr,
const char *setup_script, char *ifname,
size_t ifname_sz, int mq_required)
{
int fd, vnet_hdr_required;
if (tap->has_vnet_hdr) {
*vnet_hdr = tap->vnet_hdr;
vnet_hdr_required = *vnet_hdr;
} else {
*vnet_hdr = 1;
vnet_hdr_required = 0;
}
TFR(fd = tap_open(ifname, ifname_sz, vnet_hdr, vnet_hdr_required,
mq_required));
if (fd < 0) {
return -1;
}
if (setup_script &&
setup_script[0] != '\0' &&
strcmp(setup_script, "no") != 0 &&
launch_script(setup_script, ifname, fd)) {
close(fd);
return -1;
}
return fd;
}
static int net_tap_init(const NetdevTapOptions *tap, int *vnet_hdr,
const char *setup_script, char *ifname,
size_t ifname_sz, int mq_required, Error **errp)
{
Error *err = NULL;
int fd, vnet_hdr_required;
if (tap->has_vnet_hdr) {
*vnet_hdr = tap->vnet_hdr;
vnet_hdr_required = *vnet_hdr;
} else {
*vnet_hdr = 1;
vnet_hdr_required = 0;
}
TFR(fd = tap_open(ifname, ifname_sz, vnet_hdr, vnet_hdr_required,
mq_required, errp));
if (fd < 0) {
return -1;
}
if (setup_script &&
setup_script[0] != '\0' &&
strcmp(setup_script, "no") != 0) {
launch_script(setup_script, ifname, fd, &err);
if (err) {
error_propagate(errp, err);
close(fd);
return -1;
}
}
return fd;
}
static void swap_and_close_files(struct stats_file *history_file,
struct stats_file *temp_file)
{
munmap(history_file->addr, history_file->len);
munmap(temp_file->addr, temp_file->len);
TFR(close(temp_file->fd));
unlink(history_file->name);
if (link(temp_file->name, history_file->name) < 0)
return;
unlink(temp_file->name);
TFR(close(history_file->fd));
}
int qmp_chardev_open_file_source(char *src, int flags, Error **errp)
{
int fd = -1;
TFR(fd = qemu_open(src, flags, 0666));
if (fd == -1) {
error_setg_file_open(errp, errno, src);
}
return fd;
}
static int stats_file_close_swap(struct stats_file *history_file,
struct stats_file *temp_file)
{
int err;
stats_file_unmap(history_file);
stats_file_unmap(temp_file);
TFR(close(temp_file->fd));
unlink(history_file->name);
err = link(temp_file->name, history_file->name);
unlink(temp_file->name);
TFR(close(history_file->fd));
stats_file_cleanup(history_file);
stats_file_cleanup(temp_file);
return err;
}
static ssize_t socket_writev_buffer(void *opaque, struct iovec *iov, int iovcnt,
int64_t pos)
{
QEMUFileSocket *s = opaque;
ssize_t len;
ssize_t size = iov_size(iov, iovcnt);
ssize_t offset = 0;
int err;
while (size > 0) {
len = iov_send(s->fd, iov, iovcnt, offset, size);
if (len > 0) {
size -= len;
offset += len;
}
if (size > 0) {
err = socket_error();
if (err != EAGAIN && err != EWOULDBLOCK) {
error_report("socket_writev_buffer: Got err=%d for (%zu/%zu)",
err, (size_t)size, (size_t)len);
/*
* If I've already sent some but only just got the error, I
* could return the amount validly sent so far and wait for the
* next call to report the error, but I'd rather flag the error
* immediately.
*/
return -err;
}
/* Emulate blocking */
GPollFD pfd;
pfd.fd = s->fd;
pfd.events = G_IO_OUT | G_IO_ERR;
pfd.revents = 0;
TFR(err = g_poll(&pfd, 1, -1 /* no timeout */));
/* Errors other than EINTR intentionally ignored */
}
}
return offset;
}
static int stats_open(struct stats_file *file,
const char *name)
{
DBG("file %p name %s", file, name);
file->name = g_strdup(name);
file->fd = TFR(open(file->name, O_RDWR | O_CREAT | O_CLOEXEC, 0644));
if (file->fd < 0) {
connman_error("open error %s for %s",
strerror(errno), file->name);
g_free(file->name);
file->name = NULL;
return -errno;
}
return 0;
}
static void buffer_fill(const struct ecc_state_s *ecc, uint8_t buffer[],
int *len, int *partition, int count, uint8_t jffs_buffer[]) {
int ret;
switch (*partition) {
case 0:
if (count < PARTITION_START) {
memcpy(buffer, jffs_buffer + count,
ecc->style->eccbytes);
*len = ecc->style->eccbytes;
break;
}
*partition = 1;
case 1:
if (count - PARTITION_START < PARTITION_START) {
memcpy(buffer, jffs_buffer + count - PARTITION_START,
ecc->style->eccbytes);
*len = ecc->style->eccbytes;
break;
}
while (*len < ecc->style->eccbytes) {
ret = TFR(read(0, buffer + *len, 0x800 - *len));
if (ret <= 0)
break;
*len += ret;
}
if (*len == 0)
*partition = 2;
else if (*len < ecc->style->eccbytes) {
fprintf(stderr, "\nWarning: %i stray bytes\n", *len);
memset(buffer + *len, 0xff,
ecc->style->eccbytes - *len);
*len = ecc->style->eccbytes;
break;
} else
break;
case 2:
memset(buffer, 0xff, ecc->style->eccbytes);
*len = ecc->style->eccbytes;
break;
}
}
int tap_open(char *ifname, int ifname_size, int *vnet_hdr, int vnet_hdr_required)
{
int fd;
char *dev;
struct stat s;
TFR(fd = open("/dev/tap", O_RDWR));
if (fd < 0) {
fprintf(stderr, "warning: could not open /dev/tap: no virtual network emulation\n");
return -1;
}
fstat(fd, &s);
dev = devname(s.st_rdev, S_IFCHR);
pstrcpy(ifname, ifname_size, dev);
fcntl(fd, F_SETFL, O_NONBLOCK);
return fd;
}
void os_setup_post(void)
{
int fd = 0;
if (daemonize) {
if (chdir("/")) {
error_report("not able to chdir to /: %s", strerror(errno));
exit(1);
}
TFR(fd = qemu_open("/dev/null", O_RDWR));
if (fd == -1) {
exit(1);
}
}
change_root();
change_process_uid();
if (daemonize) {
uint8_t status = 0;
ssize_t len;
dup2(fd, 0);
dup2(fd, 1);
/* In case -D is given do not redirect stderr to /dev/null */
if (!qemu_logfile) {
dup2(fd, 2);
}
close(fd);
do {
len = write(daemon_pipe, &status, 1);
} while (len < 0 && errno == EINTR);
if (len != 1) {
exit(1);
}
}
}
void os_setup_post(void)
{
int fd = 0;
if (daemonize) {
uint8_t status = 0;
ssize_t len;
again1:
len = write(fds[1], &status, 1);
LOGV("%s:%s=%d, write(), len = %d", __FILE__, __func__, status, len);
if (len == -1 && (errno == EINTR))
goto again1;
if (len != 1)
exit(1);
if (chdir("/")) {
perror("not able to chdir to /");
exit(1);
}
TFR(fd = qemu_open("/dev/null", O_RDWR));
if (fd == -1)
exit(1);
}
change_root();
change_process_uid();
if (daemonize) {
dup2(fd, 0);
dup2(fd, 1);
dup2(fd, 2);
close(fd);
}
}
static void stats_convert(struct stats_file *file)
{
struct stats_file temp_file;
int err;
DBG("converting data file %s", file->name);
stats_file_update_cache32(file);
bzero(&temp_file, sizeof(struct stats_file));
err = stats_open_temp(&temp_file);
if (err < 0) {
connman_error("failed to open temporary file during data conversion");
return;
}
stats_file_setup(&temp_file);
struct stats_iter32 data_iter;
struct stats_record32 *record;
data_iter.file = file;
data_iter.begin = get_iterator_begin32(data_iter.file);
data_iter.end = get_iterator_end32(data_iter.file);
data_iter.it = data_iter.begin;
record = get_next_record32(&data_iter);
while (record) {
struct stats_record *next;
if (temp_file.last == get_end(&temp_file)) {
err = stats_file_remap(&temp_file, temp_file.len + sysconf(_SC_PAGESIZE));
if (err < 0) {
connman_error("failed to extend file %s", temp_file.name);
unlink(temp_file.name);
stats_file_unmap(&temp_file);
TFR(close(temp_file.fd));
stats_file_cleanup(&temp_file);
return;
}
stats_file_update_cache(&temp_file);
}
next = get_next(&temp_file, get_end(&temp_file));
if (next == get_begin(&temp_file)) {
connman_error("ring buffer is full");
unlink(temp_file.name);
stats_file_unmap(&temp_file);
TFR(close(temp_file.fd));
stats_file_cleanup(&temp_file);
return;
}
next->ts = record->ts;
next->roaming = record->roaming;
next->data.rx_packets = record->data.rx_packets;
next->data.tx_packets = record->data.tx_packets;
next->data.rx_bytes = record->data.rx_bytes;
next->data.tx_bytes = record->data.tx_bytes;
next->data.rx_errors = record->data.rx_errors;
next->data.tx_errors = record->data.tx_errors;
next->data.rx_dropped = record->data.rx_dropped;
next->data.tx_dropped = record->data.tx_dropped;
next->data.time = record->data.time;
if (next->roaming)
set_roaming(&temp_file, next);
else
set_home(&temp_file, next);
set_end(&temp_file, next);
record = get_next_record32(&data_iter);
}
// close and swap
stats_file_unmap(file);
TFR(close(file->fd));
err = rename(temp_file.name, file->name);
if (err < 0)
connman_error("failed to rename converted data file %s to %s", temp_file.name, file->name);
g_free(temp_file.name);
temp_file.name = file->name;
memcpy(file, &temp_file, sizeof(struct stats_file));
}
int tap_open(char *ifname, int ifname_size, int *vnet_hdr,
int vnet_hdr_required, int mq_required)
{
int fd, s, ret;
struct ifreq ifr;
TFR(fd = open(PATH_NET_TAP, O_RDWR));
if (fd < 0) {
error_report("could not open %s: %s", PATH_NET_TAP, strerror(errno));
return -1;
}
memset(&ifr, 0, sizeof(ifr));
ret = ioctl(fd, TAPGIFNAME, (void *)&ifr);
if (ret < 0) {
error_report("could not get tap interface name");
goto error;
}
if (ifname[0] != '\0') {
/* User requested the interface to have a specific name */
s = socket(AF_LOCAL, SOCK_DGRAM, 0);
if (s < 0) {
error_report("could not open socket to set interface name");
goto error;
}
ifr.ifr_data = ifname;
ret = ioctl(s, SIOCSIFNAME, (void *)&ifr);
close(s);
if (ret < 0) {
error_report("could not set tap interface name");
goto error;
}
} else {
pstrcpy(ifname, ifname_size, ifr.ifr_name);
}
if (*vnet_hdr) {
/* BSD doesn't have IFF_VNET_HDR */
*vnet_hdr = 0;
if (vnet_hdr_required && !*vnet_hdr) {
error_report("vnet_hdr=1 requested, but no kernel "
"support for IFF_VNET_HDR available");
goto error;
}
}
if (mq_required) {
error_report("mq_required requested, but not kernel support"
"for IFF_MULTI_QUEUE available");
goto error;
}
fcntl(fd, F_SETFL, O_NONBLOCK);
return fd;
error:
close(fd);
return -1;
}
int tap_open(char *ifname, int ifname_size, int *vnet_hdr,
int vnet_hdr_required, int mq_required)
{
int fd;
#ifdef TAPGIFNAME
struct ifreq ifr;
#else
char *dev;
struct stat s;
#endif
/* if no ifname is given, always start the search from tap0/tun0. */
int i;
char dname[100];
for (i = 0; i < 10; i++) {
if (*ifname) {
snprintf(dname, sizeof dname, "/dev/%s", ifname);
} else {
#if defined(__OpenBSD__)
snprintf(dname, sizeof dname, "/dev/tun%d", i);
#else
snprintf(dname, sizeof dname, "/dev/tap%d", i);
#endif
}
TFR(fd = open(dname, O_RDWR));
if (fd >= 0) {
break;
}
else if (errno == ENXIO || errno == ENOENT) {
break;
}
if (*ifname) {
break;
}
}
if (fd < 0) {
error_report("warning: could not open %s (%s): no virtual network emulation",
dname, strerror(errno));
return -1;
}
#ifdef TAPGIFNAME
if (ioctl(fd, TAPGIFNAME, (void *)&ifr) < 0) {
fprintf(stderr, "warning: could not get tap name: %s\n",
strerror(errno));
return -1;
}
pstrcpy(ifname, ifname_size, ifr.ifr_name);
#else
if (fstat(fd, &s) < 0) {
fprintf(stderr,
"warning: could not stat /dev/tap: no virtual network emulation: %s\n",
strerror(errno));
return -1;
}
dev = devname(s.st_rdev, S_IFCHR);
pstrcpy(ifname, ifname_size, dev);
#endif
if (*vnet_hdr) {
/* BSD doesn't have IFF_VNET_HDR */
*vnet_hdr = 0;
if (vnet_hdr_required && !*vnet_hdr) {
error_report("vnet_hdr=1 requested, but no kernel "
"support for IFF_VNET_HDR available");
close(fd);
return -1;
}
}
fcntl(fd, F_SETFL, O_NONBLOCK);
return fd;
}
int main(int argc, char *argv[], char *envp[]) {
struct ecc_state_s ecc;
uint8_t buffer[0x1000];
int ret, len, count;
/* Check if we're called by "flash2raw.spitz" or similar */
len = strlen(argv[0]);
if (!strcasecmp(argv[0] + len - 5, "akita"))
ecc.style = &akita;
else if (!strcasecmp(argv[0] + len - 6, "borzoi"))
ecc.style = &borzoi;
else if (!strcasecmp(argv[0] + len - 7, "terrier"))
ecc.style = &terrier;
else
ecc.style = &spitz;
# ifdef VERBOSE
fprintf(stderr, "[");
# endif
/* Convert data from stdin */
count = 0;
while (count < ecc.style->romsize) {
len = 0;
while (len < ecc.style->page_size) {
ret = TFR(read(0, buffer + len,
ecc.style->page_size - len));
if (ret <= 0)
break;
len += ret;
}
if (len == 0)
break;
if (len < ecc.style->page_size) {
fprintf(stderr, "\nWarning: %i stray bytes\n", len);
}
TFR(write(1, buffer, ecc.style->page_size));
count += len;
len = 0;
while (len < ecc.style->oob_size) {
ret = TFR(read(0, buffer, ecc.style->oob_size - len));
if (ret <= 0)
break;
len += ret;
}
# ifdef VERBOSE
if (count * PBAR_LEN / ecc.style->romsize >
(count - ecc.style->page_size) *
PBAR_LEN / ecc.style->romsize)
fprintf(stderr, "#");
# endif
}
# ifdef VERBOSE
fprintf(stderr, "]\n");
# endif
return 0;
}
static int stats_file_setup(struct stats_file *file)
{
struct stats_file_header *hdr;
struct stat st;
size_t size = 0;
int err;
DBG("file %p fd %d name %s", file, file->fd, file->name);
err = fstat(file->fd, &st);
if (err < 0) {
connman_error("fstat error %s for %s\n",
strerror(errno), file->name);
TFR(close(file->fd));
g_free(file->name);
file->name = NULL;
return -errno;
}
size = (size_t)st.st_size;
file->max_len = STATS_MAX_FILE_SIZE;
if (size < (size_t)sysconf(_SC_PAGESIZE))
size = sysconf(_SC_PAGESIZE);
err = stats_file_remap(file, size);
if (err < 0) {
TFR(close(file->fd));
g_free(file->name);
file->name = NULL;
return err;
}
hdr = get_hdr(file);
/* Check if data file is in old format and convert */
if (hdr->magic == MAGIC32 &&
hdr->begin >= sizeof(struct stats_file_header) &&
hdr->end >= sizeof(struct stats_file_header) &&
hdr->home >= sizeof(struct stats_file_header) &&
hdr->roaming >= sizeof(struct stats_file_header) &&
hdr->begin <= file->len &&
hdr->end <= file->len) {
stats_convert(file);
/* conversion changes the mapped address */
hdr = get_hdr(file);
}
if (hdr->magic != MAGIC64 ||
hdr->begin < sizeof(struct stats_file_header) ||
hdr->end < sizeof(struct stats_file_header) ||
hdr->home < sizeof(struct stats_file_header) ||
hdr->roaming < sizeof(struct stats_file_header) ||
hdr->begin > file->len ||
hdr->end > file->len) {
hdr->magic = MAGIC64;
hdr->begin = sizeof(struct stats_file_header);
hdr->end = sizeof(struct stats_file_header);
hdr->home = UINT_MAX;
hdr->roaming = UINT_MAX;
stats_file_update_cache(file);
}
return 0;
}
static int stats_open(struct stats_file *file, const char *name)
{
struct stats_file_header *hdr;
struct stat tm;
int err;
size_t size = 0;
bzero(file, sizeof(struct stats_file));
if (name) {
file->name = g_strdup(name);
file->fd = TFR(open(file->name,
O_RDWR | O_CREAT | O_CLOEXEC, 0644));
if (file->fd == -1) {
fprintf(stderr, "open error %s for %s\n",
strerror(errno), file->name);
return -errno;
}
err = fstat(file->fd, &tm);
if (err < 0) {
fprintf(stderr, "fstat error %s for %s\n",
strerror(errno), file->name);
return err;
}
size = (size_t)tm.st_size;
} else {
file->name = g_strdup("stats.XXXXXX.tmp");
file->fd = g_mkstemp_full(file->name, O_RDWR | O_CREAT, 0644);
if (file->fd == -1) {
fprintf(stderr, "creating tmp failed\n");
return -1;
}
}
if (size == 0)
size = sysconf(_SC_PAGESIZE);
err = stats_file_remap(file, size);
if (err < 0) {
fprintf(stderr, "remap failed\n");
return err;
}
/* Initialize new file */
hdr = get_hdr(file);
if (hdr->magic != MAGIC ||
hdr->begin < sizeof(struct stats_file_header) ||
hdr->end < sizeof(struct stats_file_header) ||
hdr->home < sizeof(struct stats_file_header) ||
hdr->roaming < sizeof(struct stats_file_header) ||
hdr->begin > file->len ||
hdr->end > file->len) {
hdr->magic = MAGIC;
hdr->begin = sizeof(struct stats_file_header);
hdr->end = sizeof(struct stats_file_header);
hdr->home = UINT_MAX;
hdr->roaming = UINT_MAX;
}
stats_file_update_cache(file);
return 0;
}
/*
* Allocate TAP device, returns opened fd.
* Stores dev name in the first arg(must be large enough).
*/
static int tap_alloc(char *dev, size_t dev_size)
{
int tap_fd, if_fd, ppa = -1;
static int ip_fd = 0;
char *ptr;
static int arp_fd = 0;
int ip_muxid, arp_muxid;
struct strioctl strioc_if, strioc_ppa;
int link_type = I_PLINK;;
struct lifreq ifr;
char actual_name[32] = "";
memset(&ifr, 0x0, sizeof(ifr));
if( *dev ){
ptr = dev;
while( *ptr && !qemu_isdigit((int)*ptr) ) ptr++;
ppa = atoi(ptr);
}
/* Check if IP device was opened */
if( ip_fd )
close(ip_fd);
TFR(ip_fd = open("/dev/udp", O_RDWR, 0));
if (ip_fd < 0) {
syslog(LOG_ERR, "Can't open /dev/ip (actually /dev/udp)");
return -1;
}
TFR(tap_fd = open("/dev/tap", O_RDWR, 0));
if (tap_fd < 0) {
syslog(LOG_ERR, "Can't open /dev/tap");
return -1;
}
/* Assign a new PPA and get its unit number. */
strioc_ppa.ic_cmd = TUNNEWPPA;
strioc_ppa.ic_timout = 0;
strioc_ppa.ic_len = sizeof(ppa);
strioc_ppa.ic_dp = (char *)&ppa;
if ((ppa = ioctl (tap_fd, I_STR, &strioc_ppa)) < 0)
syslog (LOG_ERR, "Can't assign new interface");
TFR(if_fd = open("/dev/tap", O_RDWR, 0));
if (if_fd < 0) {
syslog(LOG_ERR, "Can't open /dev/tap (2)");
return -1;
}
if(ioctl(if_fd, I_PUSH, "ip") < 0){
syslog(LOG_ERR, "Can't push IP module");
return -1;
}
if (ioctl(if_fd, SIOCGLIFFLAGS, &ifr) < 0)
syslog(LOG_ERR, "Can't get flags\n");
snprintf (actual_name, 32, "tap%d", ppa);
pstrcpy(ifr.lifr_name, sizeof(ifr.lifr_name), actual_name);
ifr.lifr_ppa = ppa;
/* Assign ppa according to the unit number returned by tun device */
if (ioctl (if_fd, SIOCSLIFNAME, &ifr) < 0)
syslog (LOG_ERR, "Can't set PPA %d", ppa);
if (ioctl(if_fd, SIOCGLIFFLAGS, &ifr) <0)
syslog (LOG_ERR, "Can't get flags\n");
/* Push arp module to if_fd */
if (ioctl (if_fd, I_PUSH, "arp") < 0)
syslog (LOG_ERR, "Can't push ARP module (2)");
/* Push arp module to ip_fd */
if (ioctl (ip_fd, I_POP, NULL) < 0)
syslog (LOG_ERR, "I_POP failed\n");
if (ioctl (ip_fd, I_PUSH, "arp") < 0)
syslog (LOG_ERR, "Can't push ARP module (3)\n");
/* Open arp_fd */
TFR(arp_fd = open ("/dev/tap", O_RDWR, 0));
if (arp_fd < 0)
syslog (LOG_ERR, "Can't open %s\n", "/dev/tap");
/* Set ifname to arp */
strioc_if.ic_cmd = SIOCSLIFNAME;
strioc_if.ic_timout = 0;
strioc_if.ic_len = sizeof(ifr);
strioc_if.ic_dp = (char *)𝔦
if (ioctl(arp_fd, I_STR, &strioc_if) < 0){
syslog (LOG_ERR, "Can't set ifname to arp\n");
}
if((ip_muxid = ioctl(ip_fd, I_LINK, if_fd)) < 0){
syslog(LOG_ERR, "Can't link TAP device to IP");
return -1;
}
if ((arp_muxid = ioctl (ip_fd, link_type, arp_fd)) < 0)
syslog (LOG_ERR, "Can't link TAP device to ARP");
close (if_fd);
memset(&ifr, 0x0, sizeof(ifr));
pstrcpy(ifr.lifr_name, sizeof(ifr.lifr_name), actual_name);
ifr.lifr_ip_muxid = ip_muxid;
ifr.lifr_arp_muxid = arp_muxid;
if (ioctl (ip_fd, SIOCSLIFMUXID, &ifr) < 0)
{
ioctl (ip_fd, I_PUNLINK , arp_muxid);
ioctl (ip_fd, I_PUNLINK, ip_muxid);
syslog (LOG_ERR, "Can't set multiplexor id");
}
snprintf(dev, dev_size, "tap%d", ppa);
return tap_fd;
}
int main(int argc, char *argv[], char *envp[]) {
struct ecc_state_s ecc;
uint8_t buffer[0x1000], ecc_payload[0x40], regs[3], *jffs;
int ret, len, eccbyte, count, partition;
/* Check if we're called by "raw2flash.spitz" or similar */
len = strlen(argv[0]);
if (!strcasecmp(argv[0] + len - 5, "akita"))
ecc.style = &akita;
else if (!strcasecmp(argv[0] + len - 6, "borzoi"))
ecc.style = &borzoi;
else if (!strcasecmp(argv[0] + len - 7, "terrier"))
ecc.style = &terrier;
else
ecc.style = &spitz;
# ifdef VERBOSE
fprintf(stderr, "[");
# endif
/* Skip first 10 bytes */
TFR(read(0, buffer, 0x10));
len = 0;
jffs = (uint8_t *) malloc(PARTITION_START);
while (len < PARTITION_START) {
ret = TFR(read(0, jffs + len, PARTITION_START - len));
if (ret <= 0)
break;
len += ret;
}
/* Convert data from stdin */
partition = len = eccbyte = count = 0;
memset(ecc_payload, 0xff, ecc.style->oob_size);
jffs2_format(&ecc, ecc_payload);
while (count < ecc.style->romsize) {
buffer_fill(&ecc, buffer, &len, &partition, count, jffs);
buffer_digest(&ecc, buffer, regs);
ecc_payload[ecc.style->eccpos[eccbyte ++]] = regs[0];
ecc_payload[ecc.style->eccpos[eccbyte ++]] = regs[1];
ecc_payload[ecc.style->eccpos[eccbyte ++]] = regs[2];
TFR(write(1, buffer, ecc.style->eccbytes));
count += ecc.style->eccbytes;
len -= ecc.style->eccbytes;
memmove(buffer, buffer + ecc.style->eccbytes, len);
if (eccbyte >= ecc.style->eccsize) {
TFR(write(1, ecc_payload, ecc.style->oob_size));
eccbyte = 0;
memset(ecc_payload, 0xff, ecc.style->oob_size);
if (partition < 2)
jffs2_format(&ecc, ecc_payload);
}
# ifdef VERBOSE
if (count * PBAR_LEN / ecc.style->romsize >
(count - ecc.style->eccbytes) *
PBAR_LEN / ecc.style->romsize)
fprintf(stderr, "#");
# endif
}
# ifdef VERBOSE
fprintf(stderr, "]\n");
# endif
free(jffs);
return 0;
}