Harald Welte | c5efb5b | 2018-04-25 17:38:51 +0200 | [diff] [blame] | 1 | #pragma once |
| 2 | /* |
| 3 | * TUN interface functions. |
| 4 | * Copyright (C) 2002, 2003 Mondru AB. |
| 5 | * Copyright (C) 2017-2018 by Harald Welte <laforge@gnumonks.org> |
| 6 | * |
| 7 | * The contents of this file may be used under the terms of the GNU |
| 8 | * General Public License Version 2, provided that the above copyright |
| 9 | * notice and this permission notice is included in all copies or |
| 10 | * substantial portions of the software. |
| 11 | * |
| 12 | */ |
| 13 | |
| 14 | #include <net/if.h> |
| 15 | |
| 16 | #include "../lib/in46_addr.h" |
| 17 | |
| 18 | #define TUN_NLBUFSIZE 1024 |
| 19 | |
| 20 | #include "config.h" |
| 21 | |
| 22 | /* ipv6 ip type flags for tun_ipv6_local_get() */ |
| 23 | enum { |
| 24 | IP_TYPE_IPv4 = 1, |
| 25 | IP_TYPE_IPv6_LINK = 2, |
| 26 | IP_TYPE_IPv6_NONLINK = 4, |
| 27 | }; |
| 28 | #define IP_TYPE_IPv6 (IP_TYPE_IPv6_LINK | IP_TYPE_IPv6_NONLINK) |
| 29 | |
| 30 | |
| 31 | #ifndef HAVE_IPHDR |
| 32 | struct iphdr |
| 33 | { |
| 34 | #if __BYTE_ORDER == __LITTLE_ENDIAN |
| 35 | unsigned int ihl:4; |
| 36 | unsigned int version:4; |
| 37 | #elif __BYTE_ORDER == __BIG_ENDIAN |
| 38 | unsigned int version:4; |
| 39 | unsigned int ihl:4; |
| 40 | #else |
| 41 | # error "Please fix <bits/endian.h>" |
| 42 | #endif |
| 43 | u_int8_t tos; |
| 44 | u_int16_t tot_len; |
| 45 | u_int16_t id; |
| 46 | u_int16_t frag_off; |
| 47 | u_int8_t ttl; |
| 48 | u_int8_t protocol; |
| 49 | u_int16_t check; |
| 50 | u_int32_t saddr; |
| 51 | u_int32_t daddr; |
| 52 | /*The options start here. */ |
| 53 | }; |
| 54 | #endif /* !HAVE_IPHDR */ |
| 55 | |
| 56 | extern int netdev_setaddr4(const char *devname, struct in_addr *addr, |
| 57 | struct in_addr *dstaddr, struct in_addr *netmask); |
| 58 | |
| 59 | extern int netdev_setaddr6(const char *devname, struct in6_addr *addr, struct in6_addr *dstaddr, |
| 60 | size_t prefixlen); |
| 61 | |
| 62 | extern int netdev_addaddr4(const char *devname, struct in_addr *addr, |
| 63 | struct in_addr *dstaddr, struct in_addr *netmask); |
| 64 | |
| 65 | extern int netdev_addaddr6(const char *devname, struct in6_addr *addr, |
| 66 | struct in6_addr *dstaddr, int prefixlen); |
| 67 | |
| 68 | extern int netdev_addroute(struct in_addr *dst, struct in_addr *gateway, struct in_addr *mask); |
| 69 | extern int netdev_delroute(struct in_addr *dst, struct in_addr *gateway, struct in_addr *mask); |
| 70 | |
| 71 | extern int netdev_ip_local_get(const char *devname, struct in46_prefix *prefix_list, |
| 72 | size_t prefix_size, int flags); |