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More Zmodem bug fixes: Too many pkttypes; Use wrong packet buffer

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This commit is contained in:
Gregory Nutt 2013-07-14 15:39:26 -06:00
parent b3eee3fd9b
commit 82297ff7f8
4 changed files with 51 additions and 28 deletions
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1
system/zmodem/zm.h
View File

@ -369,7 +369,6 @@ struct zmr_state_s
uint8_t f2; /* Transfer flag F2 */
uint8_t f3; /* Transfer flag F3 */
#endif
uint8_t pkttype; /* Type of packet */
uint8_t ntimeouts; /* Number of timeouts */
uint32_t crc; /* Remove file CRC */
FAR char *filename; /* Local filename */

32
system/zmodem/zm_receive.c
View File

@ -319,6 +319,7 @@ static int zmr_zrinit(FAR struct zm_state_s *pzm)
zmdbg("ZMR_STATE %d:->%d Send ZRINIT\n", pzm->state, ZMR_START);
pzm->state = ZMR_START;
pzm->flags &= ~ZM_FLAG_OO; /* In case we get here from ZMR_FINISH */
/* Send ZRINIT */
@ -409,7 +410,7 @@ static int zmr_zsrintdata(FAR struct zm_state_s *pzm)
FAR struct zmr_state_s *pzmr = (FAR struct zmr_state_s *)pzm;
uint8_t by[4];
zmdbg("PSTATE %d:%d->%d.%d. Received the rest of the ZSINIT packet\n",
zmdbg("PSTATE %d:%d->%d:%d. Received the rest of the ZSINIT packet\n",
pzm->pstate, pzm->psubstate, PSTATE_IDLE, PIDLE_ZPAD);
pzm->pstate = PSTATE_IDLE;
@ -513,6 +514,7 @@ static int zmr_zfile(FAR struct zm_state_s *pzm)
zmdbg("ZMR_STATE %d\n", pzm->state);
pzm->nerrors = 0;
pzm->flags &= ~ZM_FLAG_OO; /* In case we get here from ZMR_FINISH */
/* Cache flags (skipping of the initial header type byte) */
@ -609,7 +611,7 @@ static int zmr_filename(FAR struct zm_state_s *pzm)
int filetype;
int ret;
zmdbg("PSTATE %d:%d->%d.%d\n",
zmdbg("PSTATE %d:%d->%d:%d\n",
pzm->pstate, pzm->psubstate, PSTATE_IDLE, PIDLE_ZPAD);
zmdbg("ZMR_STATE %d\n", pzm->state);
@ -734,7 +736,7 @@ static int zmr_filedata(FAR struct zm_state_s *pzm)
if (pzm->nerrors > CONFIG_SYSTEM_ZMODEM_MAXERRORS)
{
zmdbg("PSTATE %d:%d->%d.%d\n",
zmdbg("PSTATE %d:%d->%d:%d\n",
pzm->pstate, pzm->psubstate, PSTATE_DATA, PDATA_READ);
/* Revert to the IDLE state and send the cancel string */
@ -746,7 +748,7 @@ static int zmr_filedata(FAR struct zm_state_s *pzm)
}
else
{
zmdbg("PSTATE %d:%d->%d.%d\n",
zmdbg("PSTATE %d:%d->%d:%d\n",
pzm->pstate, pzm->psubstate, PSTATE_IDLE, PIDLE_ZPAD);
zmdbg("ZMR_STATE %d->%d\n", pzm->state, ZMR_READREADY);
@ -769,7 +771,7 @@ static int zmr_filedata(FAR struct zm_state_s *pzm)
/* Could not write to the the file. */
zmdbg("ERROR: Write to file failed: %d\n", errorcode);
zmdbg("PSTATE %d:%d->%d.%d\n",
zmdbg("PSTATE %d:%d->%d:%d\n",
pzm->pstate, pzm->psubstate, PSTATE_IDLE, PIDLE_ZPAD);
zmdbg("ZMR_STATE %d->%d\n", pzm->state, ZMR_FINISH);
@ -781,16 +783,17 @@ static int zmr_filedata(FAR struct zm_state_s *pzm)
return zmr_fileerror(pzmr, ZFERR, (uint32_t)errorcode);
}
zmdbg("offset: %ld nchars: %d\n", (unsigned long)pzmr->offset, pzm->pktlen);
zmdbg("offset: %ld nchars: %d pkttype: %02x\n",
(unsigned long)pzmr->offset, pzm->pktlen, pzm->pkttype);
pzmr->offset += pzm->pktlen;
zmdbg("%ld bytes received\n", (unsigned long)pzmr->offset);
zmdbg("Bytes received: %ld\n", (unsigned long)pzmr->offset);
/* If this was the last data subpacket, leave data mode */
if (pzmr->pkttype == ZCRCE || pzmr->pkttype == ZCRCW)
if (pzm->pkttype == ZCRCE || pzm->pkttype == ZCRCW)
{
zmdbg("PSTATE %d:%d->%d.%d: ZCRCE|ZCRCW\n",
zmdbg("PSTATE %d:%d->%d:%d: ZCRCE|ZCRCW\n",
pzm->pstate, pzm->psubstate, PSTATE_IDLE, PIDLE_ZPAD);
zmdbg("ZMR_STATE %d->%d\n", pzm->state, ZMR_READREADY);
@ -815,7 +818,7 @@ static int zmr_filedata(FAR struct zm_state_s *pzm)
* ZCRCE: End of file, no response
*/
if (pzmr->pkttype == ZCRCQ || pzmr->pkttype == ZCRCW)
if (pzm->pkttype == ZCRCQ || pzm->pkttype == ZCRCW)
{
zmdbg("Send ZACK\n");
@ -961,7 +964,7 @@ static int zmr_zfin(FAR struct zm_state_s *pzm)
* meaning that we are all done.
*/
zmdbg("PSTATE %d:%d->%d.%d: Send ZFIN\n",
zmdbg("PSTATE %d:%d->%d:%d: Send ZFIN\n",
pzm->pstate, pzm->psubstate, PSTATE_IDLE, PIDLE_ZPAD);
zmdbg("ZMR_STATE %d\n", pzm->state);
@ -999,6 +1002,8 @@ static int zmr_finto(FAR struct zm_state_s *pzm)
*/
pzmr->ntimeouts++;
pzm->flags &= ~ZM_FLAG_OO; /* No longer expect "OO" */
zmdbg("ZMR_STATE %d: %d send timeouts\n", pzm->state, pzmr->ntimeouts);
/* And terminate the reception with a timeout error */
@ -1007,7 +1012,7 @@ static int zmr_finto(FAR struct zm_state_s *pzm)
}
/****************************************************************************
* Name: zmr_finto
* Name: zmr_oo
*
* Description:
* Received "OO" in the ZMR_FINISH state. We are finished!
@ -1103,6 +1108,7 @@ static int zmr_error(FAR struct zm_state_s *pzm)
pzm->state, pzm->hdrdata[0]);
pzm->flags |= ZM_FLAG_WAIT;
pzm->flags &= ~ZM_FLAG_OO; /* In case we get here from ZMR_FINISH */
return OK;
}
@ -1473,7 +1479,7 @@ static int zmr_fileerror(FAR struct zmr_state_s *pzmr, uint8_t type,
/* Set the state back to IDLE to abort the transfer */
zmdbg("PSTATE %d:%d->%d.%d\n",
zmdbg("PSTATE %d:%d->%d:%d\n",
pzmr->cmn.pstate, pzmr->cmn.psubstate, PSTATE_IDLE, PIDLE_ZPAD);
pzmr->cmn.pstate = PSTATE_IDLE;

3
system/zmodem/zm_send.c
View File

@ -614,6 +614,7 @@ static int zms_command(FAR struct zm_state_s *pzm)
static int zms_message(FAR struct zm_state_s *pzm)
{
zmdbg("ZMS_STATE %d\n", pzm->state);
zm_readstate(pzm);
return OK;
}
@ -629,6 +630,7 @@ static int zms_message(FAR struct zm_state_s *pzm)
static int zms_stderrdata(FAR struct zm_state_s *pzm)
{
zmdbg("ZMS_STATE %d\n", pzm->state);
pzm->pktbuf[pzm->pktlen] = '\0';
fprintf(stderr, "Message: %s", (char*)pzm->pktbuf);
return OK;
@ -647,6 +649,7 @@ static int zms_stderrdata(FAR struct zm_state_s *pzm)
static int zms_initdone(FAR struct zm_state_s *pzm)
{
zmdbg("ZMS_STATE %d->%d\n", pzm->state, ZMS_DONE);
pzm->state = ZMS_DONE;
return ZM_XFRDONE;
}

43
system/zmodem/zm_state.c
View File

@ -154,7 +154,7 @@ static int zm_event(FAR struct zm_state_s *pzm, int event)
static int zm_nakhdr(FAR struct zm_state_s *pzm)
{
zmdbg("PSTATE %d:%d->%d.%d: NAKing\n",
zmdbg("PSTATE %d:%d->%d:%d: NAKing\n",
pzm->pstate, pzm->psubstate, PSTATE_IDLE, PIDLE_ZPAD);
/* Revert to the IDLE state */
@ -180,7 +180,7 @@ static int zm_hdrevent(FAR struct zm_state_s *pzm)
zmdbg("Received type: %d data: %02x %02x %02x %02x\n",
pzm->hdrdata[0],
pzm->hdrdata[1], pzm->hdrdata[2], pzm->hdrdata[3], pzm->hdrdata[4]);
zmdbg("PSTATE %d:%d->%d.%d\n",
zmdbg("PSTATE %d:%d->%d:%d\n",
pzm->pstate, pzm->psubstate, PSTATE_IDLE, PIDLE_ZPAD);
/* Revert to the IDLE state */
@ -231,7 +231,7 @@ static int zm_hdrevent(FAR struct zm_state_s *pzm)
static int zm_dataevent(FAR struct zm_state_s *pzm)
{
zmdbg("Received type: %d length: %d\n", pzm->pkttype, pzm->pktlen);
zmdbg("PSTATE %d:%d->%d.%d\n",
zmdbg("PSTATE %d:%d->%d:%d\n",
pzm->pstate, pzm->psubstate, PSTATE_IDLE, PIDLE_ZPAD);
/* Revert to the IDLE state */
@ -255,6 +255,12 @@ static int zm_dataevent(FAR struct zm_state_s *pzm)
{
pzm->flags |= ZM_FLAG_CRKOK;
}
/* Adjust the back length to exclude the packet type length of the 4-
* byte checksum.
*/
pzm->pktlen -= 5;
}
else
{
@ -270,8 +276,16 @@ static int zm_dataevent(FAR struct zm_state_s *pzm)
{
pzm->flags |= ZM_FLAG_CRKOK;
}
/* Adjust the back length to exclude the packet type length of the 2-
* byte checksum.
*/
pzm->pktlen -= 3;
}
/* Then handle the data received event */
return zm_event(pzm, ZME_DATARCVD);
}
@ -296,7 +310,7 @@ static int zm_idle(FAR struct zm_state_s *pzm, uint8_t ch)
{
/* The ZDLE character is expected next */
zmdbg("PSTATE %d:%d->%d.%d\n",
zmdbg("PSTATE %d:%d->%d:%d\n",
pzm->pstate, pzm->psubstate, pzm->pstate, PIDLE_ZDLE);
pzm->psubstate = PIDLE_ZDLE;
@ -313,7 +327,7 @@ static int zm_idle(FAR struct zm_state_s *pzm, uint8_t ch)
if (pzm->psubstate == PIDLE_ZDLE)
{
zmdbg("PSTATE %d:%d->%d.%d\n",
zmdbg("PSTATE %d:%d->%d:%d\n",
pzm->pstate, pzm->psubstate, PSTATE_HEADER, PHEADER_FORMAT);
pzm->flags &= ~ZM_FLAG_OO;
@ -323,7 +337,7 @@ static int zm_idle(FAR struct zm_state_s *pzm, uint8_t ch)
}
else
{
zmdbg("PSTATE %d:%d->%d.%d\n",
zmdbg("PSTATE %d:%d->%d:%d\n",
pzm->pstate, pzm->psubstate, pzm->pstate, PIDLE_ZPAD);
pzm->psubstate = PIDLE_ZPAD;
@ -340,27 +354,28 @@ static int zm_idle(FAR struct zm_state_s *pzm, uint8_t ch)
* case if not.
*/
if ((pzm->state & ZM_FLAG_OO) != 0)
if ((pzm->flags & ZM_FLAG_OO) != 0)
{
/* Yes... did we receive an 'O' before this one? */
if (pzm->psubstate != PIDLE_OO)
if (pzm->psubstate == PIDLE_OO)
{
/* This is the second 'O' of "OO". the receiver operation is
* finished.
*/
zmdbg("PSTATE %d:%d->%d.%d\n",
zmdbg("PSTATE %d:%d->%d:%d\n",
pzm->pstate, pzm->psubstate, pzm->pstate, PIDLE_ZPAD);
pzm->flags &= ~ZM_FLAG_OO;
pzm->psubstate = PIDLE_ZPAD;
return zm_event(pzm, ZME_OO);
}
else
{
/* No... this is the first 'O' that we have seen */
/* No... then this is the first 'O' that we have seen */
zmdbg("PSTATE %d:%d->%d.%d\n",
zmdbg("PSTATE %d:%d->%d:%d\n",
pzm->pstate, pzm->psubstate, pzm->pstate, PIDLE_OO);
pzm->psubstate = PIDLE_OO;
@ -373,7 +388,7 @@ static int zm_idle(FAR struct zm_state_s *pzm, uint8_t ch)
default:
if (pzm->psubstate != PIDLE_ZPAD)
{
zmdbg("PSTATE %d:%d->%d.%d\n",
zmdbg("PSTATE %d:%d->%d:%d\n",
pzm->pstate, pzm->psubstate, pzm->pstate, PIDLE_ZPAD);
pzm->psubstate = PIDLE_ZPAD;
@ -894,7 +909,7 @@ int zm_datapump(FAR struct zm_state_s *pzm)
{
/* Yes... a timeout occurred */
zm_timeout(pzm);
ret = zm_timeout(pzm);
}
/* No.. then just ignore the EINTR. */
@ -940,7 +955,7 @@ int zm_datapump(FAR struct zm_state_s *pzm)
void zm_readstate(FAR struct zm_state_s *pzm)
{
zmdbg("PSTATE %d:%d->%d.%d\n",
zmdbg("PSTATE %d:%d->%d:%d\n",
pzm->pstate, pzm->psubstate, PSTATE_DATA, PDATA_READ);
pzm->pstate = PSTATE_DATA;