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Fixes #518: lsquic compliance with RFC 9000 for MAX_STREAM_DATA frame #525

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Fixes #518: lsquic compliance with RFC 9000 for MAX_STREAM_DATA frame #525

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048c05e
Fix lsquic compliance with RFC 9000 for MAX_STREAM_DATA frame
plumplumli Dec 26, 2024
ff2e540
Fix lsquic compliance with RFC 9000 for MAX_STREAM_DATA frame, and bu…
plumplumli Dec 26, 2024
a91840a
Fix: handle MAX_STREAM_DATA frame according to RFC 9000 and RFC 9114
plumplumli Jan 3, 2025
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17 changes: 17 additions & 0 deletions src/liblsquic/lsquic_full_conn_ietf.c
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Original file line number Diff line number Diff line change
Expand Up @@ -6186,6 +6186,21 @@ process_max_stream_data_frame (struct ietf_full_conn *conn,
return 0;
}

if ((conn->ifc_flags & (IFC_SERVER|IFC_HTTP)) == IFC_HTTP
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It is better to move those two tests under if (is_peer_initiated(conn, stream_id)), just in case side effects for regular MAX_STREAM_DATA processing.

&& SIT_BIDI_SERVER == (stream_id & SIT_MASK))
{
ABORT_QUIETLY(1, HEC_STREAM_CREATION_ERROR, "HTTP/3 server "
"is not allowed to initiate bidirectional streams (got "
"STREAM frame for stream %"PRIu64, stream_id);
return 0;
}

if (conn->ifc_flags & IFC_CLOSING)
{
LSQ_DEBUG("Connection closing: ignore frame");
return parsed_len;
}

stream = find_stream_by_id(conn, stream_id);
if (stream)
lsquic_stream_window_update(stream, max_data);
Expand Down Expand Up @@ -6223,6 +6238,8 @@ process_max_stream_data_frame (struct ietf_full_conn *conn,
&& (!valid_stream_id(conn->ifc_max_req_id)
|| conn->ifc_max_req_id < stream_id))
conn->ifc_max_req_id = stream_id;

lsquic_stream_window_update(stream, max_data);
}
else
{
Expand Down