dd581730e5
Until now, messages would be passed to protocol handlers in a single batch only if they happened to be dequeued in a row. Packets interleaved between different connections would result in multiple calls to the same protocol handler for a single connection. Instead, keep track of incoming packet descriptors, arrange them in sequences, and call protocol handlers only as we completely sorted input messages in batches. Signed-off-by: Stefano Brivio <sbrivio@redhat.com>
52 lines
1.5 KiB
C
52 lines
1.5 KiB
C
#ifndef UDP_H
|
|
#define UDP_H
|
|
|
|
#define UDP_TIMER_INTERVAL 1000 /* ms */
|
|
|
|
void udp_sock_handler(struct ctx *c, union epoll_ref ref, uint32_t events,
|
|
struct timespec *now);
|
|
int udp_tap_handler(struct ctx *c, int af, void *addr,
|
|
struct tap_l4_msg *msg, int count, struct timespec *now);
|
|
int udp_sock_init(struct ctx *c, struct timespec *now);
|
|
void udp_timer(struct ctx *c, struct timespec *ts);
|
|
void udp_update_l2_buf(unsigned char *eth_d, unsigned char *eth_s,
|
|
uint32_t *ip_da);
|
|
void udp_remap_to_tap(in_port_t port, in_port_t delta);
|
|
void udp_remap_to_init(in_port_t port, in_port_t delta);
|
|
|
|
/**
|
|
* union udp_epoll_ref - epoll reference portion for TCP connections
|
|
* @bound: Set if this file descriptor is a bound socket
|
|
* @splice: Set if descriptor is associated to "spliced" connection
|
|
* @v6: Set for IPv6 sockets or connections
|
|
* @port: Source port for connected sockets, bound port otherwise
|
|
* @u32: Opaque u32 value of reference
|
|
*/
|
|
union udp_epoll_ref {
|
|
struct {
|
|
uint32_t bound:1,
|
|
splice:3,
|
|
#define UDP_TO_NS 1
|
|
#define UDP_TO_INIT 2
|
|
#define UDP_BACK_TO_NS 3
|
|
#define UDP_BACK_TO_INIT 4
|
|
|
|
v6:1,
|
|
port:16;
|
|
};
|
|
uint32_t u32;
|
|
};
|
|
|
|
/**
|
|
* struct udp_ctx - Execution context for UDP
|
|
* @port_to_tap: Ports bound host-side, data to tap or ns L4 socket
|
|
* @port_to_init: Ports bound namespace-side, data to init L4 socket
|
|
* @timer_run: Timestamp of most recent timer run
|
|
*/
|
|
struct udp_ctx {
|
|
uint8_t port_to_tap [USHRT_MAX / 8];
|
|
uint8_t port_to_init [USHRT_MAX / 8];
|
|
struct timespec timer_run;
|
|
};
|
|
|
|
#endif /* UDP_H */
|