From 58562a8229948d7f76b1eb77fe1da1edac60f133 Mon Sep 17 00:00:00 2001
From: Victor Boivie <boivie@webrtc.org>
Date: Fri, 29 Nov 2024 08:29:35 +0100
Subject: [PATCH] dcsctp: Add handover state for received MIDs

The next expected MID to use (which applies to both ordered and
unordered streams, in contrast to SSNs) was properly handed over for
streams this socket sends on, but not for streams this socket receives
on.

Adding handover state first.

Bug: webrtc:41481008
Change-Id: Ib3941f0ee1a34c24605792d9f0b658bb6a9ade4a
Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/369821
Commit-Queue: Victor Boivie <boivie@webrtc.org>
Reviewed-by: Mirko Bonadei <mbonadei@webrtc.org>
Cr-Commit-Position: refs/heads/main@{#43469}
---
 net/dcsctp/public/dcsctp_handover_state.h | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/net/dcsctp/public/dcsctp_handover_state.h b/net/dcsctp/public/dcsctp_handover_state.h
index f277ebc02c..8cc8096cde 100644
--- a/net/dcsctp/public/dcsctp_handover_state.h
+++ b/net/dcsctp/public/dcsctp_handover_state.h
@@ -67,9 +67,11 @@ struct DcSctpSocketHandoverState {
   struct OrderedStream {
     uint32_t id = 0;
     uint32_t next_ssn = 0;
+    uint32_t next_mid = 0;
   };
   struct UnorderedStream {
     uint32_t id = 0;
+    uint32_t next_mid = 0;
   };
   struct Receive {
     bool seen_packet = false;