1/* SPDX-License-Identifier: GPL-2.0 */
2#ifndef __NETWORK_HELPERS_H
3#define __NETWORK_HELPERS_H
4#include <sys/socket.h>
5#include <sys/types.h>
6#include <linux/types.h>
7typedef __u16 __sum16;
8#include <linux/if_ether.h>
9#include <linux/if_packet.h>
10#include <linux/ip.h>
11#include <linux/ipv6.h>
12#include <netinet/tcp.h>
13#include <bpf/bpf_endian.h>
14
15#define MAGIC_VAL 0x1234
16#define NUM_ITER 100000
17#define VIP_NUM 5
18#define MAGIC_BYTES 123
19
20struct network_helper_opts {
21	const char *cc;
22	int timeout_ms;
23	bool must_fail;
24	bool noconnect;
25	int type;
26	int proto;
27};
28
29/* ipv4 test vector */
30struct ipv4_packet {
31	struct ethhdr eth;
32	struct iphdr iph;
33	struct tcphdr tcp;
34} __packed;
35extern struct ipv4_packet pkt_v4;
36
37/* ipv6 test vector */
38struct ipv6_packet {
39	struct ethhdr eth;
40	struct ipv6hdr iph;
41	struct tcphdr tcp;
42} __packed;
43extern struct ipv6_packet pkt_v6;
44
45int settimeo(int fd, int timeout_ms);
46int start_server(int family, int type, const char *addr, __u16 port,
47		 int timeout_ms);
48int start_mptcp_server(int family, const char *addr, __u16 port,
49		       int timeout_ms);
50int *start_reuseport_server(int family, int type, const char *addr_str,
51			    __u16 port, int timeout_ms,
52			    unsigned int nr_listens);
53void free_fds(int *fds, unsigned int nr_close_fds);
54int connect_to_fd(int server_fd, int timeout_ms);
55int connect_to_fd_opts(int server_fd, const struct network_helper_opts *opts);
56int connect_fd_to_fd(int client_fd, int server_fd, int timeout_ms);
57int fastopen_connect(int server_fd, const char *data, unsigned int data_len,
58		     int timeout_ms);
59int make_sockaddr(int family, const char *addr_str, __u16 port,
60		  struct sockaddr_storage *addr, socklen_t *len);
61char *ping_command(int family);
62int get_socket_local_port(int sock_fd);
63
64struct nstoken;
65/**
66 * open_netns() - Switch to specified network namespace by name.
67 *
68 * Returns token with which to restore the original namespace
69 * using close_netns().
70 */
71struct nstoken *open_netns(const char *name);
72void close_netns(struct nstoken *token);
73#endif
74