[PATCH v2 07/16] ratp: fix single byte sending flagged with SO

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

 



When a single data byte is sent, it is flagged as SO and the actual
data goes in the length byte within the header.

Worth noting that this issue wasn't found in any barebox<->bbremote
interaction because all data packets sent between them always have
more than one byte (due to the barebox command specific header).

Signed-off-by: Aleksander Morgado <aleksander@xxxxxxxxxxxxx>
---
 lib/ratp.c | 11 ++++++-----
 1 file changed, 6 insertions(+), 5 deletions(-)

diff --git a/lib/ratp.c b/lib/ratp.c
index c946bea1a..846f8130c 100644
--- a/lib/ratp.c
+++ b/lib/ratp.c
@@ -384,6 +384,7 @@ static int ratp_send_next_data(struct ratp_internal *ri)
 	uint16_t crc;
 	uint8_t control;
 	struct ratp_header *hdr;
+	uint8_t *data;
 	int pktlen;
 	struct ratp_message *msg;
 	int len;
@@ -409,19 +410,19 @@ static int ratp_send_next_data(struct ratp_internal *ri)
 		RATP_CONTROL_ACK;
 
 	hdr = msg->buf;
+	data = (uint8_t *)(hdr + 1);
 
 	if (msg->eor)
 		control |= RATP_CONTROL_EOR;
 
+	pktlen = sizeof(struct ratp_header);
 	if (len > 1) {
-		void *data = hdr + 1;
-		pktlen = sizeof(*hdr) + len + 2;
+		pktlen += len + 2;
 		crc = cyg_crc16(data, len);
 		put_unaligned_be16(crc, data + len);
-	} else {
-		pktlen = sizeof(struct ratp_header);
+	} else if (len == 1) {
 		control |= RATP_CONTROL_SO;
-		len = 0;
+		len = *data;
 	}
 
 	ratp_create_packet(ri, hdr, control, len);
-- 
2.13.1


_______________________________________________
barebox mailing list
barebox@xxxxxxxxxxxxxxxxxxx
http://lists.infradead.org/mailman/listinfo/barebox



[Index of Archives]     [Linux Embedded]     [Linux USB Devel]     [Linux Audio Users]     [Yosemite News]     [Linux Kernel]     [Linux SCSI]     [XFree86]

  Powered by Linux