The reference says:
If SYN was set we assume that the other end crashed and has
attempted to open a new connection. We respond by sending a
legal reset:
<SN=received AN><AN=received SN+1 modulo 2><CTL=RST, ACK>
Add this missing step.
Signed-off-by: Aleksander Morgado <aleksander@xxxxxxxxxxxxx>
---
lib/ratp.c | 7 +++++++
1 file changed, 7 insertions(+)
diff --git a/lib/ratp.c b/lib/ratp.c
index e9536499e..a8ac52c75 100644
--- a/lib/ratp.c
+++ b/lib/ratp.c
@@ -731,8 +731,15 @@ static int ratp_behaviour_c2(struct ratp_internal *ri, void *pkt)
return 1;
if (hdr->control & RATP_CONTROL_SYN) {
+ uint8_t control;
+
ri->status = -ECONNRESET;
pr_debug("Error: Connection reset\n");
+
+ control = RATP_CONTROL_RST | RATP_CONTROL_ACK |
+ ratp_set_sn(ratp_an(hdr)) | ratp_set_an(!ratp_sn(hdr));
+ ratp_send_hdr(ri, control);
+
ratp_state_change(ri, RATP_STATE_CLOSED);
return 1;
}
--
2.13.1
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