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8 Commits (edcce70373e54cbdbea9a38cccce111630772fec)

Author SHA1 Message Date
Oleksij Rempel edcce70373 jcat: provide errqueue support 
The J1939 errqueue is a feedback interface to notify userspace
applications about actual transfer status. For now we can get
information about amount of data already send to the peer and errors
if session was aborted.

Signed-off-by: Oleksij Rempel <o.rempel@pengutronix.de>
 2019-05-09 14:40:16 +02:00
Oleksij Rempel 05368ef1ae jcat: rework poller 
Make poller to be a main part of the send loop. It should make
application more understandable.

Signed-off-by: Oleksij Rempel <o.rempel@pengutronix.de>
 2019-05-09 14:40:16 +02:00
Oleksij Rempel 05a66d63fa jcat: enable polling by default 
and set more or less meaningful default value.

Signed-off-by: Oleksij Rempel <o.rempel@pengutronix.de>
 2019-05-09 14:40:16 +02:00
Oleksij Rempel 19d41bec45 jcat: allow to re-send rest of the buffer if we was interrupted 
latest version of UAPI allows to continue sending on some signals.

Signed-off-by: Oleksij Rempel <linux@rempel-privat.de>
 2019-04-04 10:53:17 +02:00
Oleksij Rempel 48a4a4bef4 jcat: user recv() instead of recvfrom() 
No information from recvfrom() is currently used. So, it is enough to
use plain recv().

Signed-off-by: Oleksij Rempel <linux@rempel-privat.de>
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
 2019-04-04 10:45:33 +02:00
Oleksij Rempel b931fb514c jcat: add missing close of outfile and j1939 socket 
Signed-off-by: Oleksij Rempel <o.rempel@pengutronix.de>
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
 2019-04-04 10:45:33 +02:00
Oleksij Rempel 5b68a2cef1 jcat: inverse if logic 
it was if(offset != NULL), so it should be if(offset)

Signed-off-by: Oleksij Rempel <o.rempel@pengutronix.de>
 2019-01-04 14:40:07 +01:00
Oleksij Rempel 23e5e227ac add jcat 
jcat is kind of netcat for j1939
for example:
jcat can0:0x90 -r > /tmp/some_file

jcat -i some_file_to_send can0:0x80 :0x90,0x12300

Signed-off-by: Oleksij Rempel <o.rempel@pengutronix.de>
 2019-01-04 13:01:11 +01:00