const char *
bitzi_fj_to_string(bitzi_fj_t fj)
{
STATIC_ASSERT(NUM_BITZI_FJ == G_N_ELEMENTS(bitzi_fj_table));
g_assert(UNSIGNED(fj) < G_N_ELEMENTS(bitzi_fj_table));
return Q_(bitzi_fj_table[UNSIGNED(fj)]);
}
/**
* Compare two characters.
*/
static int
charcmp(char a, char b)
{
return
a == b ? 0 :
UNSIGNED(a) < UNSIGNED(b) ? -1 : +1;
}
/**
* Get the type of message intuited from the start of a G2 packet.
*
* @param start start of message
* @param len amount of consecutive bytes we have so far
*
* @return the message type if we can intuit it, G2_MSG_MAX otherwise.
*/
enum g2_msg
g2_msg_type(const void *start, size_t len)
{
const char *name;
size_t namelen;
bool known;
void *val;
int type;
g2_msg_init();
name = g2_frame_name(start, len, &namelen);
if (NULL == name)
return G2_MSG_MAX;
known = patricia_lookup_extended_k(g2_msg_pt, name, namelen*8, NULL, &val);
if (!known)
return G2_MSG_MAX;
type = pointer_to_int(val);
g_assert((uint) type < UNSIGNED(G2_MSG_MAX));
return type;
}
void
gnet_stats_count_flowc(const void *head, bool head_only)
{
uint t;
uint16 size = gmsg_size(head) + GTA_HEADER_SIZE;
uint8 function = gnutella_header_get_function(head);
uint8 ttl = gnutella_header_get_ttl(head);
uint8 hops = gnutella_header_get_hops(head);
g_assert(thread_is_main());
if (GNET_PROPERTY(node_debug) > 3)
g_debug("FLOWC function=%d ttl=%d hops=%d", function, ttl, hops);
/*
* Adjust for Kademlia messages.
*/
if (GTA_MSG_DHT == function && size >= KDA_HEADER_SIZE && !head_only) {
uint8 opcode = kademlia_header_get_function(head);
if (UNSIGNED(opcode + MSG_DHT_BASE) < G_N_ELEMENTS(stats_lut)) {
t = stats_lut[opcode + MSG_DHT_BASE];
} else {
t = stats_lut[function]; /* Invalid opcode? */
}
hops = 0;
ttl = 0;
} else {
t = stats_lut[function];
}
gnet_stats_flowc_internal(t, function, ttl, hops, size);
}
/**
* Write data to stream.
*
* @param os the output stream
* @param data start of data to write
* @param len length of data to write
*
* @return size of data written, -1 on error.
*/
ssize_t
ostream_write(ostream_t *os, const void *data, size_t len)
{
ssize_t w = (ssize_t) -1;
ostream_check(os);
len = MIN(len, MAX_INT_VAL(ssize_t));
switch (os->type) {
case OSTREAM_T_FILE:
{
size_t n = fwrite(data, len, 1, os->u.f);
w = (0 == n) ? -1 : (ssize_t) len;
}
break;
case OSTREAM_T_FD:
w = write(os->u.fd, data, len);
break;
case OSTREAM_T_MEM:
pmsg_slist_append(os->u.sl, data, len);
w = len;
break;
case OSTREAM_T_PMSG:
w = pmsg_write(os->u.mb, data, len);
w = (len == UNSIGNED(w)) ? w : -1;
break;
case OSTREAM_T_MAX:
g_assert_not_reached();
}
if (-1 == w)
os->ioerr = TRUE;
return w;
}
/**
* Grab random data from file and feed them to the specified routine.
*
* @param path pathname where random data are expected
* @param rfd random filling routine to feed data
* @param len amount of random bytes to read
*
* @return the amount of bytes fed if OK, a short count or -1 on error,
* with errno set.
*/
ssize_t
frand_restore(const char *path, feed_fn_t rfd, size_t len)
{
char buf[256];
int fd;
ssize_t bytes_read = 0;
fd = file_open_missing(path, O_RDONLY);
if (-1 == fd)
return -1;
while (len != 0) {
size_t n = MIN(len, sizeof buf);
ssize_t r;
r = read(fd, buf, n);
if (-1 == r)
break;
bytes_read += r;
(*rfd)(buf, r);
if (UNSIGNED(r) != n)
break;
len -= n;
}
ZERO(buf); /* Leave no memory trail */
close(fd);
return bytes_read;
}
/**
* Use specified random filler to create a file full of random bytes.
*
* @param path pathname where random data should be generated
* @param rfn random number buffer-filling routine to use
* @param len amount of random bytes to generate
*
* @return the amount of bytes generated if OK, a short count or -1 on error,
* with errno set.
*/
ssize_t
frand_save(const char *path, randfill_fn_t rfn, size_t len)
{
char buf[256];
int fd;
ssize_t written = 0;
fd = file_create(path, O_WRONLY, S_IRUSR | S_IWUSR);
if (-1 == fd)
return -1;
while (len != 0) {
size_t n = MIN(len, sizeof buf);
ssize_t w;
(*rfn)(buf, n);
w = write(fd, buf, n);
if (-1 == w)
break;
written += w;
if (UNSIGNED(w) != n)
break;
len -= n;
}
ZERO(buf); /* Leave no memory trail */
close(fd);
return written;
}
void
bdump(int datf)
{
int i;
unsigned char dat[DBM_BBLKSIZ];
filestat_t buf;
unsigned long b;
unsigned long used = 0;
unsigned long total;
if (-1 == fstat(datf, &buf))
return;
for (b = 0; b < UNSIGNED(buf.st_size); b += DBM_BBLKSIZ * DBM_BBLKSIZ * 8) {
if ((fileoffset_t) -1 == lseek(datf, b, SEEK_SET))
oops("seek failed: offset %lu", b);
if (-1 == read(datf, dat, sizeof dat))
oops("read failed: offset %lu", b);
for (i = 0; i < DBM_BBLKSIZ; i++)
used += bits_set(dat[i]);
}
total = buf.st_size / DBM_BBLKSIZ;
if (buf.st_size % DBM_BBLKSIZ)
total++;
printf("%lu blocks used / %lu total (%.2f%% used)\n",
used, total, used * 100.0 / (total ? total : 1));
}
/**
* @return key decimation factor for expiration
*/
double
keys_decimation_factor(const kuid_t *key)
{
size_t common;
int delta;
uint8 frontier;
common = kuid_common_prefix(get_our_kuid(), key);
/*
* The furthest frontier is important because it determines whether
* we need to apply timing decimation on published keys.
* Relying solely on the exploration of our subtree is not enough
* since there can be some aberration in the vincinity of our KUID.
*
* Correct it with the theoretical furthest bit value, determined
* from the estimated DHT size, putting the frontier as further away
* as possible.
*/
frontier = MIN(kball.furthest_bits, kball.theoretical_bits);
/*
* If key falls within our k-ball, no decimation.
*/
if (common >= frontier || !kball.seeded)
return 1.0;
delta = kball.furthest_bits - common;
g_assert(delta > 0 && UNSIGNED(delta) < G_N_ELEMENTS(decimation_factor));
return decimation_factor[delta];
}
/**
* Retry publishing after some delay.
*
* @param pe the entry to publish
* @param delay delay in seconds
* @param msg if non-NULL, logging message explaining the delay
*/
static void
publisher_retry(struct publisher_entry *pe, int delay, const char *msg)
{
struct pubdata *pd;
publisher_check(pe);
g_assert(NULL == pe->publish_ev);
g_assert(delay > 0);
pd = get_pubdata(pe->sha1);
if (pd != NULL) {
pd->next_enqueue = time_advance(tm_time(), UNSIGNED(delay));
dbmw_write(db_pubdata, pe->sha1, pd, sizeof *pd);
}
pe->publish_ev = cq_insert(publish_cq, delay * 1000, handle_entry, pe);
pe->last_delayed = tm_time();
if (GNET_PROPERTY(publisher_debug) > 3) {
shared_file_t *sf = shared_file_by_sha1(pe->sha1);
g_debug("PUBLISHER will retry SHA-1 %s %s\"%s\" in %s: %s",
sha1_to_string(pe->sha1),
(sf && sf != SHARE_REBUILDING && shared_file_is_partial(sf)) ?
"partial " : "",
(sf && sf != SHARE_REBUILDING) ? shared_file_name_nfc(sf) : "",
compact_time(delay), msg != NULL ? msg : "<no reason>");
shared_file_unref(&sf);
}
}
void
gnet_stats_count_sent(const gnutella_node_t *n,
uint8 type, const void *base, uint32 size)
{
uint t = stats_lut[type];
gnet_stats_t *stats;
uint8 hops;
g_assert(t != MSG_UNKNOWN);
g_assert(thread_is_main());
g_assert(!NODE_TALKS_G2(n));
stats = NODE_USES_UDP(n) ? &gnet_udp_stats : &gnet_tcp_stats;
/*
* Adjust for Kademlia messages.
*/
if (GTA_MSG_DHT == type && size >= KDA_HEADER_SIZE) {
uint8 opcode = kademlia_header_get_function(base);
if (UNSIGNED(opcode + MSG_DHT_BASE) < G_N_ELEMENTS(stats_lut)) {
t = stats_lut[opcode + MSG_DHT_BASE];
}
hops = 0;
} else {
hops = gnutella_header_get_hops(base);
}
gnet_stats_count_sent_internal(n, t, hops, size, stats);
}
/**
* Write new value in-place for the pair at index ``i'' on the page.
*
* @return 0 if OK, -1 on error with errno set.
*/
int
replpair(DBM *db, char *pag, int i, datum val)
{
unsigned koff;
unsigned voff;
unsigned short *ino = (unsigned short *) pag;
g_assert(UNSIGNED(i) + 1 <= ino[0]);
voff = offset(ino[i + 1]);
#ifdef BIGDATA
if (is_big(ino[i + 1]))
return big_replace(db, pag + voff, val.dptr, val.dsize);
#else
(void) db; /* Parameter unused if no BIGDATA */
#endif
koff = offset(ino[i]);
g_assert(koff - voff == val.dsize);
memcpy(pag + voff, val.dptr, val.dsize);
return 0;
}
/**
* Convert a message type to a symbolic name.
*
* @param type the G2 message type
*
* @return the message symbolic name if we can intuit it, "UNKNOWN" otherwise.
*/
const char *
g2_msg_type_name(const enum g2_msg type)
{
if G_UNLIKELY((uint) type >= UNSIGNED(G2_MSG_MAX))
return "UNKNOWN";
return g2_msg_symbolic_names[type];
}
/**
* Initialize internal state for our incremental zlib stream.
*
* @param zs the zlib stream structure to initialize
* @param data input data to process; if NULL, will be incrementally given
* @param len length of data to process (if data not NULL) or estimation
* @param dest where processed data should go, or NULL if allocated
* @param destlen length of supplied output buffer, if dest != NULL
*/
static void
zlib_stream_init(zlib_stream_t *zs,
const void *data, size_t len, void *dest, size_t destlen)
{
z_streamp z;
g_assert(size_is_non_negative(len));
g_assert(size_is_non_negative(destlen));
zs->in = data;
zs->inlen = data ? len : 0;
zs->inlen_total = zs->inlen;
/*
* When deflating zlib requires normally 0.1% more + 12 bytes, we use
* 0.5% to be safe.
*
* When inflating, assume we'll double the input at least.
*/
if (NULL == dest) {
/* Processed data go to a dynamically allocated buffer */
if (!zs->allocated) {
if (data == NULL && len == 0)
len = 512;
if (ZLIB_DEFLATER_MAGIC == zs->magic) {
zs->outlen = (len * 1.005 + 12.0);
g_assert(zs->outlen > len);
g_assert(zs->outlen - len >= 12);
} else {
zs->outlen = UNSIGNED(len) * 2;
}
zs->out = halloc(zs->outlen);
zs->allocated = TRUE;
}
} else {
/* Processed data go to a supplied buffer, not-resizable */
if (zs->allocated)
hfree(zs->out);
zs->out = dest;
zs->outlen = destlen;
zs->allocated = FALSE;
}
/*
* Initialize Z stream.
*/
z = zs->z;
g_assert(z != NULL); /* Stream not closed yet */
z->next_out = zs->out;
z->avail_out = zs->outlen;
z->next_in = deconstify_pointer(zs->in);
z->avail_in = 0; /* Will be set by zlib_xxx_step() */
}
/**
* Callback function for inputevt_add(). This function pipes the query to
* the server using the pipe in non-blocking mode, partial writes are handled
* appropriately. In case of an unrecoverable error the query pipe will be
* closed and the blocking adns_fallback() will be invoked.
*/
static void
adns_query_callback(void *data, int dest, inputevt_cond_t condition)
{
adns_async_write_t *remain = data;
g_assert(NULL != remain);
g_assert(NULL != remain->buf);
g_assert(remain->pos < remain->size);
g_assert(dest == adns_query_fd);
g_assert(0 != adns_query_event_id);
if (condition & INPUT_EVENT_EXCEPTION) {
g_warning("%s: write exception", G_STRFUNC);
goto abort;
}
while (remain->pos < remain->size) {
ssize_t ret;
size_t n;
n = remain->size - remain->pos;
ret = write(dest, &remain->buf[remain->pos], n);
if (0 == ret) {
errno = ECONNRESET;
ret = (ssize_t) -1;
}
/* FALL THROUGH */
if ((ssize_t) -1 == ret) {
if (!is_temporary_error(errno))
goto error;
return;
}
g_assert(ret > 0);
g_assert(UNSIGNED(ret) <= n);
remain->pos += (size_t) ret;
}
g_assert(remain->pos == remain->size);
inputevt_remove(&adns_query_event_id);
goto done;
error:
g_warning("%s: write() failed: %m", G_STRFUNC);
abort:
g_warning("%s: removed myself", G_STRFUNC);
inputevt_remove(&adns_query_event_id);
fd_close(&adns_query_fd);
g_warning("%s: using fallback", G_STRFUNC);
adns_fallback(&remain->req);
done:
adns_async_write_free(remain);
return;
}
static inline void
tls_log_function(int level, const char *text)
{
if (GNET_PROPERTY(tls_debug) > UNSIGNED(level)) {
char *str = h_strdup(text);
strchomp(str, 0);
g_debug("TLS(%d): %s", level, str);
hfree(str);
}
}
/**
* @return human-readable error string for given error code.
*/
const char *
iprange_strerror(iprange_err_t errnum)
{
STATIC_ASSERT(IPR_ERROR_COUNT == G_N_ELEMENTS(iprange_errstr));
if (UNSIGNED(errnum) >= G_N_ELEMENTS(iprange_errstr))
return "Invalid error code";
return iprange_errstr[errnum];
}
static inline ALWAYS_INLINE void
PIO_LOCK(int fd)
{
ONCE_FLAG_RUN(pio_inited, pio_init_once);
g_assert(fd >= 0);
g_assert(UNSIGNED(fd) < pio_capacity);
spinlock(&pio_locks[fd]);
}
/**
* @return human-readable error string corresponding to error code `errnum'.
*/
const char *
tok_strerror(tok_error_t errnum)
{
STATIC_ASSERT(G_N_ELEMENTS(tok_errstr) == TOK_MAX_ERROR);
if (UNSIGNED(errnum) >= G_N_ELEMENTS(tok_errstr))
return "Invalid error code";
return tok_errstr[errnum];
}
void
gnet_stats_count_dropped(gnutella_node_t *n, msg_drop_reason_t reason)
{
uint32 size;
uint type;
gnet_stats_t *stats;
g_assert(UNSIGNED(reason) < MSG_DROP_REASON_COUNT);
g_assert(thread_is_main());
stats = NODE_USES_UDP(n) ? &gnet_udp_stats : &gnet_tcp_stats;
if (NODE_TALKS_G2(n)) {
int f = g2_msg_type(n->data, n->size);
if (f != G2_MSG_MAX) {
f += MSG_G2_BASE;
} else {
f = G_N_ELEMENTS(stats_lut) - 1; /* Last, holds MSG_UNKNOWN */
}
type = stats_lut[f];
size = n->size;
} else {
type = stats_lut[gnutella_header_get_function(&n->header)];
size = n->size + sizeof(n->header);
}
entropy_harvest_small(
VARLEN(n->addr), VARLEN(n->port), VARLEN(reason), VARLEN(type),
VARLEN(size), NULL);
DROP_STATS(stats, type, size);
node_inc_rxdrop(n);
switch (reason) {
case MSG_DROP_HOSTILE_IP: n->n_hostile++; break;
case MSG_DROP_SPAM: n->n_spam++; break;
case MSG_DROP_EVIL: n->n_evil++; break;
default: ;
}
if (NODE_TALKS_G2(n)) {
if (GNET_PROPERTY(log_dropped_g2)) {
g2_msg_log_dropped_data(n->data, n->size,
"from %s: %s", node_infostr(n),
gnet_stats_drop_reason_to_string(reason));
}
} else {
if (GNET_PROPERTY(log_dropped_gnutella)) {
gmsg_log_split_dropped(&n->header, n->data, n->size,
"from %s: %s", node_infostr(n),
gnet_stats_drop_reason_to_string(reason));
}
}
}
static inline ALWAYS_INLINE void
THREAD_LOCK(int fd)
{
if G_UNLIKELY(!pio_inited)
pio_init();
g_assert(fd >= 0);
g_assert(UNSIGNED(fd) < pio_capacity);
spinlock_hidden(&pio_locks[fd]);
}
/**
* Sets the state of the browse host context to ``state'' and resets the
* data block variables.
*/
static inline void
browse_host_next_state(struct browse_host_upload *bh, enum bh_state state)
{
g_assert(NULL != bh);
g_assert(UNSIGNED(state) < NUM_BH_STATES);
bh->w_buf = NULL;
bh->w_buf_size = 0;
bh->b_data = NULL;
bh->b_size = 0;
bh->b_offset = 0;
bh->state = state;
}
/**
* Account for dropped Kademlia message of specified opcode from node ``n''.
*/
void
gnet_dht_stats_count_dropped(gnutella_node_t *n, kda_msg_t opcode,
msg_drop_reason_t reason)
{
uint32 size;
uint type;
gnet_stats_t *stats;
g_assert(UNSIGNED(reason) < MSG_DROP_REASON_COUNT);
g_assert(opcode <= KDA_MSG_MAX_ID);
g_assert(UNSIGNED(opcode + MSG_DHT_BASE) < G_N_ELEMENTS(stats_lut));
g_assert(thread_is_main());
size = n->size + sizeof(n->header);
type = stats_lut[opcode + MSG_DHT_BASE];
stats = NODE_USES_UDP(n) ? &gnet_udp_stats : &gnet_tcp_stats;
entropy_harvest_small(
VARLEN(n->addr), VARLEN(n->port), VARLEN(reason), VARLEN(type),
VARLEN(size), NULL);
DROP_STATS(stats, type, size);
node_inc_rxdrop(n);
}
static void
on_notebook_downloads_info_switch_page(GtkNotebook *unused_notebook,
GtkNotebookPage *unused_page, int page_num, void *unused_udata)
{
(void) unused_notebook;
(void) unused_page;
(void) unused_udata;
g_return_if_fail(UNSIGNED(page_num) < NUM_DOWNLOADS_INFO_NB_PAGES);
entropy_harvest_single(VARLEN(page_num));
notebook_downloads_info_current_page = page_num;
gui_prop_set_guint32_val(PROP_DOWNLOADS_INFO_NOTEBOOK_TAB, page_num);
}
/**
* Write NUL-terminated string.
*
* If (size_t) -1 is given as length, then it is computed via strlen(), in
* which case the string buffer must be NUL-terminated. Otherwise, the value
* is taken to be the pre-computed string length.
*
* The string is written as: <ule64(length)><bytes>, no trailing NUL.
*/
void
pmsg_write_string(pmsg_t *mb, const char *str, size_t length)
{
size_t len;
g_assert(pmsg_is_writable(mb)); /* Not shared, or would corrupt data */
len = (size_t) -1 == length ? strlen(str) : length;
g_assert(UNSIGNED(pmsg_available(mb)) >= len + 10); /* Need ule64 length */
pmsg_write_ule64(mb, (uint64) len);
if (len != 0) {
pmsg_write(mb, str, len);
}
}
/**
* Write NUL-terminated string, up to `n' characters or the first seen NUL
* in the buffer, whichever comes first.
*
* The string is written as: <ule64(length)><bytes>, no trailing NUL.
*/
void
pmsg_write_fixed_string(pmsg_t *mb, const char *str, size_t n)
{
size_t len;
g_assert(pmsg_is_writable(mb)); /* Not shared, or would corrupt data */
g_assert(UNSIGNED(pmsg_available(mb)) >= n + 10); /* Need ule64 length */
len = strlen(str);
len = MIN(n, len);
pmsg_write_ule64(mb, (uint64) len);
if (len != 0) {
pmsg_write(mb, str, len);
}
}
/**
* Write I/O vector.
*
* @return amount of bytes written, or -1 on error.
*/
static ssize_t
tx_deflate_writev(txdrv_t *tx, iovec_t *iov, int iovcnt)
{
struct attr *attr = tx->opaque;
int sent = 0;
if (tx_deflate_debugging(9)) {
g_debug("TX %s: (%s) (buffer #%d, nagle %s, unflushed %zu) [%c%c]",
G_STRFUNC, gnet_host_to_string(&tx->host), attr->fill_idx,
(attr->flags & DF_NAGLE) ? "on" : "off", attr->unflushed,
(attr->flags & DF_FLOWC) ? 'C' : '-',
(attr->flags & DF_FLUSH) ? 'f' : '-');
}
while (iovcnt-- > 0) {
int ret;
/*
* If we're flow controlled or shut down, stop sending.
*/
if (attr->flags & (DF_FLOWC|DF_SHUTDOWN))
break;
ret = deflate_add(tx, iovec_base(iov), iovec_len(iov));
if (-1 == ret)
return -1;
sent += ret;
if (UNSIGNED(ret) < iovec_len(iov)) {
/* Could not write all, flow-controlled */
break;
}
iov++;
}
if (tx_deflate_debugging(9)) {
g_debug("TX %s: (%s) sent %lu bytes (buffer #%d, nagle %s, "
"unflushed %zu) [%c%c]", G_STRFUNC,
gnet_host_to_string(&tx->host), (ulong) sent, attr->fill_idx,
(attr->flags & DF_NAGLE) ? "on" : "off", attr->unflushed,
(attr->flags & DF_FLOWC) ? 'C' : '-',
(attr->flags & DF_FLUSH) ? 'f' : '-');
}
return sent;
}
/**
* Write NUL-terminated string, up to `n' characters or the first seen NUL
* in the buffer, whichever comes first.
*
* The string is written as: <ule64(length)><bytes>, no trailing NUL.
*/
void
pmsg_write_fixed_string(pmsg_t *mb, const char *str, size_t n)
{
size_t len;
g_assert(pmsg_is_writable(mb)); /* Not shared, or would corrupt data */
g_assert(UNSIGNED(pmsg_available(mb)) >= n + 10); /* Need ule64 length */
g_assert_log(size_is_non_negative(n), "%s(): n=%zd", G_STRFUNC, n);
len = vstrlen(str);
len = MIN(n, len);
pmsg_write_ule64(mb, (uint64) len);
if (len != 0) {
pmsg_write(mb, str, len);
}
}
/**
* Create new message holding serialized tree.
*
* @param t the tree to serialize
* @param prio priority of the message
* @param freecb if non-NULL, the free routine to attach to message
* @param arg additional argument for the free routine
*
* @return a message containing the serialized tree.
*/
static pmsg_t *
g2_build_pmsg_prio(const g2_tree_t *t, int prio, pmsg_free_t freecb, void *arg)
{
size_t len;
pmsg_t *mb;
len = g2_frame_serialize(t, NULL, 0);
if (NULL == freecb)
mb = pmsg_new(prio, NULL, len);
else
mb = pmsg_new_extend(prio, NULL, len, freecb, arg);
g2_frame_serialize(t, pmsg_start(mb), len);
pmsg_seek(mb, len);
g_assert(UNSIGNED(pmsg_size(mb)) == len);
return mb;
}
/**
* Write NUL-terminated string.
*
* If (size_t) -1 is given as length, then it is computed via strlen(), in
* which case the string buffer must be NUL-terminated. Otherwise, the value
* is taken to be the pre-computed string length.
*
* The string is written as: <ule64(length)><bytes>, no trailing NUL.
*/
void
pmsg_write_string(pmsg_t *mb, const char *str, size_t length)
{
size_t len;
g_assert(pmsg_is_writable(mb)); /* Not shared, or would corrupt data */
g_assert_log(size_is_non_negative(length) || (size_t) -1 == length,
"%s(): length=%zd", G_STRFUNC, length);
len = (size_t) -1 == length ? strlen(str) : length;
g_assert(UNSIGNED(pmsg_available(mb)) >= len + 10); /* Need ule64 length */
pmsg_write_ule64(mb, (uint64) len);
if (len != 0) {
pmsg_write(mb, str, len);
}
}