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 bool noconnect; 25 int type; 26 int proto; 27 }; 28 29 /* ipv4 test vector */ 30 struct ipv4_packet { 31 struct ethhdr eth; 32 struct iphdr iph; 33 struct tcphdr tcp; 34 } __packed; 35 extern struct ipv4_packet pkt_v4; 36 37 /* ipv6 test vector */ 38 struct ipv6_packet { 39 struct ethhdr eth; 40 struct ipv6hdr iph; 41 struct tcphdr tcp; 42 } __packed; 43 extern struct ipv6_packet pkt_v6; 44 45 int settimeo(int fd, int timeout_ms); 46 int start_server(int family, int type, const char *addr, __u16 port, 47 int timeout_ms); 48 int start_mptcp_server(int family, const char *addr, __u16 port, 49 int timeout_ms); 50 int *start_reuseport_server(int family, int type, const char *addr_str, 51 __u16 port, int timeout_ms, 52 unsigned int nr_listens); 53 void free_fds(int *fds, unsigned int nr_close_fds); 54 int connect_to_addr(const struct sockaddr_storage *addr, socklen_t len, int type); 55 int connect_to_fd(int server_fd, int timeout_ms); 56 int connect_to_fd_opts(int server_fd, const struct network_helper_opts *opts); 57 int connect_fd_to_fd(int client_fd, int server_fd, int timeout_ms); 58 int fastopen_connect(int server_fd, const char *data, unsigned int data_len, 59 int timeout_ms); 60 int make_sockaddr(int family, const char *addr_str, __u16 port, 61 struct sockaddr_storage *addr, socklen_t *len); 62 char *ping_command(int family); 63 int get_socket_local_port(int sock_fd); 64 65 struct nstoken; 66 /** 67 * open_netns() - Switch to specified network namespace by name. 68 * 69 * Returns token with which to restore the original namespace 70 * using close_netns(). 71 */ 72 struct nstoken *open_netns(const char *name); 73 void close_netns(struct nstoken *token); 74 #endif 75