| James Kuszmaul | 82f6c04 | 2021-01-17 11:30:16 -0800 | [diff] [blame^] | 1 | /** |
| 2 | * @file re_net.h Interface to Networking module. |
| 3 | * |
| 4 | * Copyright (C) 2010 Creytiv.com |
| 5 | */ |
| 6 | #if defined(WIN32) |
| 7 | #include <winsock2.h> |
| 8 | #include <ws2tcpip.h> |
| 9 | #else |
| 10 | #include <sys/types.h> |
| 11 | #ifndef _BSD_SOCKLEN_T_ |
| 12 | #define _BSD_SOCKLEN_T_ int /**< Defines the BSD socket length type */ |
| 13 | #endif |
| 14 | #include <sys/socket.h> |
| 15 | #include <netinet/in.h> |
| 16 | #include <arpa/inet.h> |
| 17 | #endif |
| 18 | |
| 19 | |
| 20 | /** Length of IPv4 address string */ |
| 21 | #ifndef INET_ADDRSTRLEN |
| 22 | #define INET_ADDRSTRLEN 16 |
| 23 | #endif |
| 24 | |
| 25 | /** Length of IPv6 address string */ |
| 26 | #ifndef INET6_ADDRSTRLEN |
| 27 | #define INET6_ADDRSTRLEN 46 |
| 28 | #endif |
| 29 | |
| 30 | /** Length of IPv4/v6 address string */ |
| 31 | #ifdef HAVE_INET6 |
| 32 | #define NET_ADDRSTRLEN INET6_ADDRSTRLEN |
| 33 | #else |
| 34 | #define NET_ADDRSTRLEN INET_ADDRSTRLEN |
| 35 | #endif |
| 36 | |
| 37 | /* forward declarations */ |
| 38 | struct sa; |
| 39 | |
| 40 | |
| 41 | /* Net generic */ |
| 42 | int net_hostaddr(int af, struct sa *ip); |
| 43 | int net_default_source_addr_get(int af, struct sa *ip); |
| 44 | int net_default_gateway_get(int af, struct sa *gw); |
| 45 | |
| 46 | |
| 47 | /* Net sockets */ |
| 48 | int net_sock_init(void); |
| 49 | void net_sock_close(void); |
| 50 | |
| 51 | |
| 52 | /* Net socket options */ |
| 53 | int net_sockopt_blocking_set(int fd, bool blocking); |
| 54 | int net_sockopt_reuse_set(int fd, bool reuse); |
| 55 | |
| 56 | |
| 57 | /* Net interface (if.c) */ |
| 58 | |
| 59 | /** |
| 60 | * Defines the interface address handler - called once per interface |
| 61 | * |
| 62 | * @param ifname Name of the interface |
| 63 | * @param sa IP address of the interface |
| 64 | * @param arg Handler argument |
| 65 | * |
| 66 | * @return true to stop traversing, false to continue |
| 67 | */ |
| 68 | typedef bool (net_ifaddr_h)(const char *ifname, const struct sa *sa, |
| 69 | void *arg); |
| 70 | |
| 71 | int net_if_getname(char *ifname, size_t sz, int af, const struct sa *ip); |
| 72 | int net_if_getaddr(const char *ifname, int af, struct sa *ip); |
| 73 | int net_if_getaddr4(const char *ifname, int af, struct sa *ip); |
| 74 | int net_if_list(net_ifaddr_h *ifh, void *arg); |
| 75 | int net_if_apply(net_ifaddr_h *ifh, void *arg); |
| 76 | int net_if_debug(struct re_printf *pf, void *unused); |
| 77 | int net_if_getlinklocal(const char *ifname, int af, struct sa *ip); |
| 78 | |
| 79 | |
| 80 | /* Net interface (ifaddrs.c) */ |
| 81 | int net_getifaddrs(net_ifaddr_h *ifh, void *arg); |
| 82 | |
| 83 | |
| 84 | /* Net route */ |
| 85 | |
| 86 | /** |
| 87 | * Defines the routing table handler - called once per route entry |
| 88 | * |
| 89 | * @param ifname Interface name |
| 90 | * @param dst Destination IP address/network |
| 91 | * @param dstlen Prefix length of destination |
| 92 | * @param gw Gateway IP address |
| 93 | * @param arg Handler argument |
| 94 | * |
| 95 | * @return true to stop traversing, false to continue |
| 96 | */ |
| 97 | typedef bool (net_rt_h)(const char *ifname, const struct sa *dst, |
| 98 | int dstlen, const struct sa *gw, void *arg); |
| 99 | |
| 100 | int net_rt_list(net_rt_h *rth, void *arg); |
| 101 | int net_rt_default_get(int af, char *ifname, size_t size); |
| 102 | int net_rt_debug(struct re_printf *pf, void *unused); |
| 103 | |
| 104 | |
| 105 | /* Net strings */ |
| 106 | const char *net_proto2name(int proto); |
| 107 | const char *net_af2name(int af); |