mirror of
https://passt.top/passt
synced 2024-07-03 00:12:41 +00:00
3af5e9fdba
Currently icmp_id_map[][] stores information about ping sockets in a bespoke structure. Move the same information into new types of flow in the flow table. To match that change, replace the existing ICMP timer with a flow-based timer for expiring ping sockets. This has the advantage that we only need to scan the active flows, not all possible ids. We convert icmp_id_map[][] to point to the flow table entries, rather than containing its own information. We do still use that array for locating the right ping flows, rather than using a "flow native" form of lookup for the time being. Signed-off-by: David Gibson <david@gibson.dropbear.id.au> [sbrivio: Update id_sock description in comment to icmp_ping_new()] Signed-off-by: Stefano Brivio <sbrivio@redhat.com>
40 lines
988 B
C
40 lines
988 B
C
/* SPDX-License-Identifier: GPL-2.0-or-later
|
|
* Copyright (c) 2021 Red Hat GmbH
|
|
* Author: Stefano Brivio <sbrivio@redhat.com>
|
|
*/
|
|
|
|
#ifndef ICMP_H
|
|
#define ICMP_H
|
|
|
|
#define ICMP_TIMER_INTERVAL 10000 /* ms */
|
|
|
|
struct ctx;
|
|
struct icmp_ping_flow;
|
|
|
|
void icmp_sock_handler(const struct ctx *c, sa_family_t af, union epoll_ref ref);
|
|
int icmp_tap_handler(const struct ctx *c, uint8_t pif, sa_family_t af,
|
|
const void *saddr, const void *daddr,
|
|
const struct pool *p, const struct timespec *now);
|
|
void icmp_init(void);
|
|
|
|
/**
|
|
* union icmp_epoll_ref - epoll reference portion for ICMP tracking
|
|
* @v6: Set for IPv6 sockets or connections
|
|
* @u32: Opaque u32 value of reference
|
|
* @id: Associated echo identifier, needed if bind() fails
|
|
*/
|
|
union icmp_epoll_ref {
|
|
uint16_t id;
|
|
uint32_t u32;
|
|
};
|
|
|
|
/**
|
|
* struct icmp_ctx - Execution context for ICMP routines
|
|
* @timer_run: Timestamp of most recent timer run
|
|
*/
|
|
struct icmp_ctx {
|
|
struct timespec timer_run;
|
|
};
|
|
|
|
#endif /* ICMP_H */
|