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Add can_id/can_mask filter handling which is defined in the slcan protocol (m/M).

pull/7/head
Oliver Hartkopp 2009-01-21 09:17:20 +00:00
parent c8be6085a4
commit baa90a135a
1 changed files with 25 additions and 0 deletions
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25
slcanpty.c
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@ -74,6 +74,7 @@ int main(int argc, char **argv)
char rxbuf[SLC_MTU]; char rxbuf[SLC_MTU];
int txp, rxp; int txp, rxp;
struct can_frame txf, rxf; struct can_frame txf, rxf;
struct can_filter fi;
int tmp, i; int tmp, i;
/* check command line options */ /* check command line options */
@ -128,6 +129,10 @@ int main(int argc, char **argv)
return 1; return 1;
} }
/* no filter content by default */
fi.can_id = CAN_ERR_FLAG;
fi.can_mask = CAN_ERR_FLAG;
while (running) { while (running) {
FD_ZERO(&rdfs); FD_ZERO(&rdfs);
@ -156,6 +161,26 @@ int main(int argc, char **argv)
/* convert to struct can_frame rxf */ /* convert to struct can_frame rxf */
rxcmd = rxbuf[0]; rxcmd = rxbuf[0];
/* check for filter configuration commands */
if (rxcmd == 'm' || rxcmd == 'M') {
rxbuf[9] = 0; /* terminate filter string */
if (rxcmd == 'm') {
fi.can_id = strtoul(rxbuf+1,NULL,16);
fi.can_id &= CAN_EFF_MASK;
} else {
fi.can_mask = strtoul(rxbuf+1,NULL,16);
fi.can_mask &= CAN_EFF_MASK;
}
/* set only when both values are defined */
if (fi.can_id != CAN_ERR_FLAG &&
fi.can_mask != CAN_ERR_FLAG)
setsockopt(s, SOL_CAN_RAW,
CAN_RAW_FILTER, &fi,
sizeof(struct can_filter));
}
if ((rxcmd != 't') && (rxcmd != 'T') && if ((rxcmd != 't') && (rxcmd != 'T') &&
(rxcmd != 'r') && (rxcmd != 'R')) (rxcmd != 'r') && (rxcmd != 'R'))
continue; continue;