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718e3744 | 1 | /* Router advertisement |
2 | * Copyright (C) 1999 Kunihiro Ishiguro | |
3 | * | |
4 | * This file is part of GNU Zebra. | |
5 | * | |
6 | * GNU Zebra is free software; you can redistribute it and/or modify it | |
7 | * under the terms of the GNU General Public License as published by the | |
8 | * Free Software Foundation; either version 2, or (at your option) any | |
9 | * later version. | |
10 | * | |
11 | * GNU Zebra is distributed in the hope that it will be useful, but | |
12 | * WITHOUT ANY WARRANTY; without even the implied warranty of | |
13 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
14 | * General Public License for more details. | |
15 | * | |
16 | * You should have received a copy of the GNU General Public License | |
17 | * along with GNU Zebra; see the file COPYING. If not, write to the Free | |
18 | * Software Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA | |
19 | * 02111-1307, USA. | |
20 | */ | |
21 | ||
22 | #ifndef _ZEBRA_SOCKOPT_H | |
23 | #define _ZEBRA_SOCKOPT_H | |
24 | ||
0df7c91f PJ |
25 | #include "sockunion.h" |
26 | ||
8cc4198f | 27 | extern int setsockopt_so_recvbuf (int sock, int size); |
b7fe4141 DO |
28 | extern int setsockopt_so_sendbuf (const int sock, int size); |
29 | extern int getsockopt_so_sendbuf (const int sock); | |
0b3acf4f | 30 | |
718e3744 | 31 | #ifdef HAVE_IPV6 |
8cc4198f | 32 | extern int setsockopt_ipv6_pktinfo (int, int); |
33 | extern int setsockopt_ipv6_checksum (int, int); | |
34 | extern int setsockopt_ipv6_multicast_hops (int, int); | |
35 | extern int setsockopt_ipv6_unicast_hops (int, int); | |
36 | extern int setsockopt_ipv6_hoplimit (int, int); | |
37 | extern int setsockopt_ipv6_multicast_loop (int, int); | |
6d0732c8 | 38 | extern int setsockopt_ipv6_tclass (int, int); |
718e3744 | 39 | #endif /* HAVE_IPV6 */ |
40 | ||
afa43b23 | 41 | /* |
42 | * It is OK to reference in6_pktinfo here without a protecting #if | |
43 | * because this macro will only be used #if HAVE_IPV6, and in6_pktinfo | |
44 | * is not optional for HAVE_IPV6. | |
45 | */ | |
46 | #define SOPT_SIZE_CMSG_PKTINFO_IPV6() (sizeof (struct in6_pktinfo)); | |
e6822768 | 47 | |
afa43b23 | 48 | /* |
49 | * Size defines for control messages used to get ifindex. We define | |
50 | * values for each method, and define a macro that can be used by code | |
51 | * that is unaware of which method is in use. | |
69e1325f | 52 | * These values are without any alignment needed (see CMSG_SPACE in RFC3542). |
afa43b23 | 53 | */ |
54 | #if defined (IP_PKTINFO) | |
55 | /* Linux in_pktinfo. */ | |
23b9c61e | 56 | #define SOPT_SIZE_CMSG_PKTINFO_IPV4() (CMSG_SPACE(sizeof (struct in_pktinfo))) |
afa43b23 | 57 | /* XXX This should perhaps be defined even if IP_PKTINFO is not. */ |
e6822768 | 58 | #define SOPT_SIZE_CMSG_PKTINFO(af) \ |
59 | ((af == AF_INET) ? SOPT_SIZE_CMSG_PKTINFO_IPV4() \ | |
60 | : SOPT_SIZE_CMSG_PKTINFO_IPV6() | |
23b9c61e | 61 | #endif /* IP_PKTINFO */ |
e6822768 | 62 | |
23b9c61e | 63 | #if defined (IP_RECVIF) |
64 | /* BSD/Solaris */ | |
afa43b23 | 65 | |
4f7baa0e | 66 | #if defined (SUNOS_5) |
23b9c61e | 67 | #define SOPT_SIZE_CMSG_RECVIF_IPV4() (sizeof (uint_t)) |
4f7baa0e | 68 | #else |
69e1325f | 69 | #define SOPT_SIZE_CMSG_RECVIF_IPV4() (sizeof (struct sockaddr_dl)) |
4f7baa0e | 70 | #endif /* SUNOS_5 */ |
23b9c61e | 71 | #endif /* IP_RECVIF */ |
e6822768 | 72 | |
23b9c61e | 73 | /* SOPT_SIZE_CMSG_IFINDEX_IPV4 - portable type */ |
74 | #if defined (SOPT_SIZE_CMSG_PKTINFO) | |
75 | #define SOPT_SIZE_CMSG_IFINDEX_IPV4() SOPT_SIZE_CMSG_PKTINFO_IPV4() | |
76 | #elif defined (SOPT_SIZE_CMSG_RECVIF_IPV4) | |
77 | #define SOPT_SIZE_CMSG_IFINDEX_IPV4() SOPT_SIZE_CMSG_RECVIF_IPV4() | |
4927cf0b | 78 | #else /* Nothing available */ |
23b9c61e | 79 | #define SOPT_SIZE_CMSG_IFINDEX_IPV4() (sizeof (char *)) |
80 | #endif /* SOPT_SIZE_CMSG_IFINDEX_IPV4 */ | |
4f7baa0e | 81 | |
e6822768 | 82 | #define SOPT_SIZE_CMSG_IFINDEX(af) \ |
23b9c61e | 83 | (((af) == AF_INET) : SOPT_SIZE_CMSG_IFINDEX_IPV4() \ |
84 | ? SOPT_SIZE_CMSG_PKTINFO_IPV6()) | |
4f7baa0e | 85 | |
4a3867d0 | 86 | extern int setsockopt_ipv4_multicast_if(int sock, struct in_addr if_addr, |
69bf3a39 DT |
87 | unsigned int ifindex); |
88 | extern int setsockopt_ipv4_multicast(int sock, int optname, | |
4a3867d0 | 89 | struct in_addr if_addr, |
8cc4198f | 90 | unsigned int mcast_addr, |
69bf3a39 | 91 | unsigned int ifindex); |
1423c809 | 92 | extern int setsockopt_ipv4_tos(int sock, int tos); |
e6822768 | 93 | |
afa43b23 | 94 | /* Ask for, and get, ifindex, by whatever method is supported. */ |
8cc4198f | 95 | extern int setsockopt_ifindex (int, int, int); |
96 | extern int getsockopt_ifindex (int, struct msghdr *); | |
96e27c99 | 97 | |
98 | /* swab the fields in iph between the host order and system order expected | |
99 | * for IP_HDRINCL. | |
100 | */ | |
8cc4198f | 101 | extern void sockopt_iphdrincl_swab_htosys (struct ip *iph); |
102 | extern void sockopt_iphdrincl_swab_systoh (struct ip *iph); | |
96e27c99 | 103 | |
cf279b3a | 104 | extern int sockopt_tcp_rtt (int); |
0df7c91f PJ |
105 | extern int sockopt_tcp_signature(int sock, union sockunion *su, |
106 | const char *password); | |
718e3744 | 107 | #endif /*_ZEBRA_SOCKOPT_H */ |