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canfdtest: add support for loopback testing

pull/492/head
Marc Kleine-Budde 2024-01-17 09:31:40 +01:00
parent 78aeedf5fe
commit fc2aad8704
1 changed files with 15 additions and 3 deletions
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18
canfdtest.c
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@ -53,6 +53,7 @@ static int sockfd;
static int test_loops;
static int exit_sig;
static int inflight_count = CAN_MSG_COUNT;
static int filter;
static canid_t can_id_ping = CAN_MSG_ID_PING;
static canid_t can_id_pong = CAN_MSG_ID_PONG;
static bool has_pong_id;
@ -80,6 +81,7 @@ static void print_usage(char *prg)
" -v (low verbosity)\n"
" -vv (high verbosity)\n"
" -x (ignore other frames on bus)\n"
" -xx (ignore locally generated and other frames on bus -- use for loopback testing)\n"
"\n"
"With the option '-g' CAN messages are generated and checked\n"
"on <can-interface>, otherwise all messages received on the\n"
@ -304,8 +306,14 @@ static int can_echo_dut(void)
int err = 0;
while (running) {
if (recv_frame(&frame, NULL))
int flags;
if (recv_frame(&frame, &flags))
return -1;
if (filter > 1 && flags & MSG_DONTROUTE)
continue;
frame_count++;
if (verbose == 1) {
echo_progress(frame.data[0]);
@ -387,6 +395,11 @@ static int can_echo_gen(void)
goto out_free;
}
if (filter > 1 &&
((rx_frame.can_id == can_id_ping && !(flags & MSG_CONFIRM)) ||
(rx_frame.can_id == can_id_pong && (flags & MSG_DONTROUTE))))
continue;
if (verbose > 1)
print_frame(rx_frame.can_id, rx_frame.data, rx_frame.len, 0);
@ -435,7 +448,6 @@ int main(int argc, char *argv[])
int echo_gen = 0;
int opt, err;
int enable_socket_option = 1;
bool filter = false;
signal(SIGTERM, signal_handler);
signal(SIGHUP, signal_handler);
@ -485,7 +497,7 @@ int main(int argc, char *argv[])
break;
case 'x':
filter = true;
filter++;
break;
case '?':