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tcp: move buffers management functions to their own file

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Move all the TCP parts using internal buffers to tcp_buf.c
and keep generic TCP management functions in tcp.c.
Add tcp_internal.h to export needed functions from tcp.c and
tcp_buf.h from tcp_buf.c

With this change we can use existing TCP functions with a
different kind of memory storage as for instance the shared
memory provided by the guest via vhost-user.

Signed-off-by: Laurent Vivier <lvivier@redhat.com>
Signed-off-by: Stefano Brivio <sbrivio@redhat.com>
This commit is contained in:
Laurent Vivier 2024-06-13 14:36:49 +02:00 • committed by Stefano Brivio
parent ec26fa013a
commit fba2b544b6
5 changed files with 654 additions and 550 deletions

16
tcp_buf.h Normal file
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/* SPDX-License-Identifier: GPL-2.0-or-later
* Copyright (c) 2021 Red Hat GmbH
* Author: Stefano Brivio <sbrivio@redhat.com>
*/
#ifndef TCP_BUF_H
#define TCP_BUF_H
void tcp_sock4_iov_init(const struct ctx *c);
void tcp_sock6_iov_init(const struct ctx *c);
void tcp_flags_flush(const struct ctx *c);
void tcp_payload_flush(const struct ctx *c);
int tcp_buf_data_from_sock(struct ctx *c, struct tcp_tap_conn *conn);
int tcp_buf_send_flag(struct ctx *c, struct tcp_tap_conn *conn, int flags);
#endif /*TCP_BUF_H */