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> 7 typedef __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 20 struct network_helper_opts { 21 const char *cc; 22 int timeout_ms; 23 bool must_fail; 24 }; 25 26 /* ipv4 test vector */ 27 struct ipv4_packet { 28 struct ethhdr eth; 29 struct iphdr iph; 30 struct tcphdr tcp; 31 } __packed; 32 extern struct ipv4_packet pkt_v4; 33 34 /* ipv6 test vector */ 35 struct ipv6_packet { 36 struct ethhdr eth; 37 struct ipv6hdr iph; 38 struct tcphdr tcp; 39 } __packed; 40 extern struct ipv6_packet pkt_v6; 41 42 int settimeo(int fd, int timeout_ms); 43 int start_server(int family, int type, const char *addr, __u16 port, 44 int timeout_ms); 45 int start_mptcp_server(int family, const char *addr, __u16 port, 46 int timeout_ms); 47 int *start_reuseport_server(int family, int type, const char *addr_str, 48 __u16 port, int timeout_ms, 49 unsigned int nr_listens); 50 void free_fds(int *fds, unsigned int nr_close_fds); 51 int connect_to_fd(int server_fd, int timeout_ms); 52 int connect_to_fd_opts(int server_fd, const struct network_helper_opts *opts); 53 int connect_fd_to_fd(int client_fd, int server_fd, int timeout_ms); 54 int fastopen_connect(int server_fd, const char *data, unsigned int data_len, 55 int timeout_ms); 56 int make_sockaddr(int family, const char *addr_str, __u16 port, 57 struct sockaddr_storage *addr, socklen_t *len); 58 char *ping_command(int family); 59 60 struct nstoken; 61 /** 62 * open_netns() - Switch to specified network namespace by name. 63 * 64 * Returns token with which to restore the original namespace 65 * using close_netns(). 66 */ 67 struct nstoken *open_netns(const char *name); 68 void close_netns(struct nstoken *token); 69 #endif 70