passt/tcp_splice.h

/* SPDX-License-Identifier: AGPL-3.0-or-later
 * Copyright (c) 2022 Red Hat GmbH
 * Author: Stefano Brivio <sbrivio@redhat.com>
 */

#ifndef TCP_SPLICE_H
#define TCP_SPLICE_H

void tcp_sock_handler_splice(struct ctx *c, union epoll_ref ref,
			     uint32_t events);
void tcp_splice_init(struct ctx *c);

#endif /* TCP_SPLICE_H */
tcp: Refactor to use events instead of states, split out spliced implementation Using events and flags instead of states makes the implementation much more straightforward: actions are mostly centered on events that occurred on the connection rather than states. An example is given by the ESTABLISHED_SOCK_FIN_SENT and FIN_WAIT_1_SOCK_FIN abominations: we don't actually care about which side started closing the connection to handle closing of connection halves. Split out the spliced implementation, as it has very little in common with the "regular" TCP path. Refactor things here and there to improve clarity. Add helpers to trace where resets and flag settings come from. No functional changes intended. Signed-off-by: Stefano Brivio <sbrivio@redhat.com> 2022-03-15 01:07:02 +01:00			`/* SPDX-License-Identifier: AGPL-3.0-or-later`
			`* Copyright (c) 2022 Red Hat GmbH`
			`* Author: Stefano Brivio <sbrivio@redhat.com>`
			`*/`

treewide: Add include guards ...at the moment, just for consistency with packet.h, icmp.h, tcp.h and udp.h. Signed-off-by: Stefano Brivio <sbrivio@redhat.com> 2022-03-26 00:05:31 +01:00			`#ifndef TCP_SPLICE_H`
			`#define TCP_SPLICE_H`

tcp: Refactor to use events instead of states, split out spliced implementation Using events and flags instead of states makes the implementation much more straightforward: actions are mostly centered on events that occurred on the connection rather than states. An example is given by the ESTABLISHED_SOCK_FIN_SENT and FIN_WAIT_1_SOCK_FIN abominations: we don't actually care about which side started closing the connection to handle closing of connection halves. Split out the spliced implementation, as it has very little in common with the "regular" TCP path. Refactor things here and there to improve clarity. Add helpers to trace where resets and flag settings come from. No functional changes intended. Signed-off-by: Stefano Brivio <sbrivio@redhat.com> 2022-03-15 01:07:02 +01:00			`void tcp_sock_handler_splice(struct ctx *c, union epoll_ref ref,`
			`uint32_t events);`
			`void tcp_splice_init(struct ctx *c);`
treewide: Add include guards ...at the moment, just for consistency with packet.h, icmp.h, tcp.h and udp.h. Signed-off-by: Stefano Brivio <sbrivio@redhat.com> 2022-03-26 00:05:31 +01:00
			`#endif /* TCP_SPLICE_H */`