8126f7a660
Now that spliced datagrams are managed via the flow table, remove UDP_ACT_SPLICE_NS and UDP_ACT_SPLICE_INIT which are no longer used. With those removed, the 'ts' field in udp_splice_port is also no longer used. struct udp_splice_port now contains just a socket fd, so replace it with a plain int in udp_splice_ns[] and udp_splice_init[]. The latter are still used for tracking of automatic port forwarding. Finally, the 'splice' field of union udp_epoll_ref is no longer used so remove it as well. Signed-off-by: David Gibson <david@gibson.dropbear.id.au> Signed-off-by: Stefano Brivio <sbrivio@redhat.com>
66 lines
2 KiB
C
66 lines
2 KiB
C
/* SPDX-License-Identifier: GPL-2.0-or-later
|
|
* Copyright (c) 2021 Red Hat GmbH
|
|
* Author: Stefano Brivio <sbrivio@redhat.com>
|
|
*/
|
|
|
|
#ifndef UDP_H
|
|
#define UDP_H
|
|
|
|
#define UDP_TIMER_INTERVAL 1000 /* ms */
|
|
|
|
void udp_portmap_clear(void);
|
|
void udp_buf_sock_handler(const struct ctx *c, union epoll_ref ref,
|
|
uint32_t events, const struct timespec *now);
|
|
void udp_reply_sock_handler(const struct ctx *c, union epoll_ref ref,
|
|
uint32_t events, const struct timespec *now);
|
|
int udp_tap_handler(struct ctx *c, uint8_t pif, sa_family_t af,
|
|
const void *saddr, const void *daddr,
|
|
const struct pool *p, int idx, const struct timespec *now);
|
|
int udp_sock_init(const struct ctx *c, int ns, sa_family_t af,
|
|
const void *addr, const char *ifname, in_port_t port);
|
|
int udp_init(struct ctx *c);
|
|
void udp_timer(struct ctx *c, const struct timespec *now);
|
|
void udp_update_l2_buf(const unsigned char *eth_d, const unsigned char *eth_s);
|
|
|
|
/**
|
|
* union udp_epoll_ref - epoll reference portion for TCP connections
|
|
* @port: Source port for connected sockets, bound port otherwise
|
|
* @pif: pif for this socket
|
|
* @orig: Set if a spliced socket which can originate "connections"
|
|
* @v6: Set for IPv6 sockets or connections
|
|
* @u32: Opaque u32 value of reference
|
|
*/
|
|
union udp_epoll_ref {
|
|
struct {
|
|
in_port_t port;
|
|
uint8_t pif;
|
|
bool orig:1,
|
|
v6:1;
|
|
};
|
|
uint32_t u32;
|
|
};
|
|
|
|
|
|
/**
|
|
* udp_fwd_ports - UDP specific port forwarding configuration
|
|
* @f: Generic forwarding configuration
|
|
* @rdelta: Reversed delta map to translate source ports on return packets
|
|
*/
|
|
struct udp_fwd_ports {
|
|
struct fwd_ports f;
|
|
in_port_t rdelta[NUM_PORTS];
|
|
};
|
|
|
|
/**
|
|
* struct udp_ctx - Execution context for UDP
|
|
* @fwd_in: Port forwarding configuration for inbound packets
|
|
* @fwd_out: Port forwarding configuration for outbound packets
|
|
* @timer_run: Timestamp of most recent timer run
|
|
*/
|
|
struct udp_ctx {
|
|
struct udp_fwd_ports fwd_in;
|
|
struct udp_fwd_ports fwd_out;
|
|
struct timespec timer_run;
|
|
};
|
|
|
|
#endif /* UDP_H */
|