J1939: MSG_DONTROUTE not set on segmented messages of local origin

[xile273]

The Socket-Can stack sets the MSG_DONTROUTE flag when a received frame originates from the local host.

For simple, non-segmented, J1939 messages the same is true. When receiving such a message of local origin, the MSG_DONTROUTE flag is set. When receiving segmented messages originating from the local host however, the MSG_DONTROUTE flag is not set.

[olerem]

Sounds plausible. Would you like to fix it? I guess, the logic in j1939_xtp_rx_rts() should be extended and session struct should be extended to store the marker for local transmission.

[marckleinebudde]

We already have j1939_tp_im_transmitter() to check this?

[olerem]

If i remember it correctly, it will be not enough.

[xile273]

Sounds plausible. Would you like to fix it? I guess, the logic in j1939_xtp_rx_rts() should be extended and session struct should be extended to store the marker for local transmission.

Sure I'll have a look, but it will take some time :)