From f08ce92a134e83e7c36050f4482b140b937c8dbb Mon Sep 17 00:00:00 2001 From: David Gibson Date: Thu, 30 Nov 2023 13:02:09 +1100 Subject: flow, tcp: Move TCP connection table to unified flow table We want to generalise "connection" tracking to things other than true TCP connections. Continue implenenting this by renaming the TCP connection table to the "flow table" and moving it to flow.c. The definitions are split between flow.h and flow_table.h - we need this separation to avoid circular dependencies: the definitions in flow.h will be needed by many headers using the flow mechanism, but flow_table.h needs all those protocol specific headers in order to define the full flow table entry. Signed-off-by: David Gibson Signed-off-by: Stefano Brivio --- flow_table.h | 25 +++++++++++++++++++++++++ 1 file changed, 25 insertions(+) create mode 100644 flow_table.h (limited to 'flow_table.h') diff --git a/flow_table.h b/flow_table.h new file mode 100644 index 0000000..c4c646b --- /dev/null +++ b/flow_table.h @@ -0,0 +1,25 @@ +/* SPDX-License-Identifier: GPL-2.0-or-later + * Copyright Red Hat + * Author: David Gibson + * + * Definitions for the global table of packet flows. + */ +#ifndef FLOW_TABLE_H +#define FLOW_TABLE_H + +/** + * union flow - Descriptor for a logical packet flow (e.g. connection) + * @f: Fields common between all variants + * @tcp: Fields for non-spliced TCP connections + * @tcp_splice: Fields for spliced TCP connections +*/ +union flow { + struct flow_common f; + struct tcp_tap_conn tcp; + struct tcp_splice_conn tcp_splice; +}; + +/* Global Flow Table */ +extern union flow flowtab[]; + +#endif /* FLOW_TABLE_H */ -- cgit v1.2.3