]>
Commit | Line | Data |
---|---|---|
dff8da6b | 1 | /* Copyright (C) 1997-2024 Free Software Foundation, Inc. |
0501d603 UD |
2 | This file is part of the GNU C Library. |
3 | ||
478b92f0 | 4 | The GNU C Library is free software; you can redistribute it and/or |
41bdb6e2 AJ |
5 | modify it under the terms of the GNU Lesser General Public |
6 | License as published by the Free Software Foundation; either | |
7 | version 2.1 of the License, or (at your option) any later version. | |
0501d603 UD |
8 | |
9 | The GNU C Library is distributed in the hope that it will be useful, | |
10 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
478b92f0 | 11 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
41bdb6e2 | 12 | Lesser General Public License for more details. |
0501d603 | 13 | |
41bdb6e2 | 14 | You should have received a copy of the GNU Lesser General Public |
59ba27a6 | 15 | License along with the GNU C Library; if not, see |
5a82c748 | 16 | <https://www.gnu.org/licenses/>. */ |
0501d603 UD |
17 | |
18 | /* Generic version. */ | |
19 | ||
f4017d20 UD |
20 | #ifndef _NETINET_IN_H |
21 | # error "Never use <bits/in.h> directly; include <netinet/in.h> instead." | |
22 | #endif | |
0501d603 | 23 | |
be4830bf AJ |
24 | /* This is the generic version, do not assume a linux-based kernel. */ |
25 | #define __USE_KERNEL_IPV6_DEFS 0 | |
26 | ||
6178c55b ST |
27 | /* To select the IP level. */ |
28 | #define SOL_IP 0 | |
29 | ||
0501d603 UD |
30 | /* Options for use with `getsockopt' and `setsockopt' at the IP level. |
31 | The first word in the comment at the right is the data type used; | |
32 | "bool" means a boolean value stored in an `int'. */ | |
33 | #define IP_OPTIONS 1 /* ip_opts; IP per-packet options. */ | |
34 | #define IP_HDRINCL 2 /* int; Header is included with data. */ | |
35 | #define IP_TOS 3 /* int; IP type of service and precedence. */ | |
36 | #define IP_TTL 4 /* int; IP time to live. */ | |
37 | #define IP_RECVOPTS 5 /* bool; Receive all IP options w/datagram. */ | |
38 | #define IP_RECVRETOPTS 6 /* bool; Receive IP options for response. */ | |
39 | #define IP_RECVDSTADDR 7 /* bool; Receive IP dst addr w/datagram. */ | |
40 | #define IP_RETOPTS 8 /* ip_opts; Set/get IP per-packet options. */ | |
41 | #define IP_MULTICAST_IF 9 /* in_addr; set/get IP multicast i/f */ | |
11160cb7 ZW |
42 | #define IP_MULTICAST_TTL 10 /* unsigned char; set/get IP multicast ttl */ |
43 | #define IP_MULTICAST_LOOP 11 /* bool; set/get IP multicast loopback */ | |
0501d603 UD |
44 | #define IP_ADD_MEMBERSHIP 12 /* ip_mreq; add an IP group membership */ |
45 | #define IP_DROP_MEMBERSHIP 13 /* ip_mreq; drop an IP group membership */ | |
46 | ||
4738bc21 ST |
47 | /* IP_MTU_DISCOVER arguments. */ |
48 | #define IP_PMTUDISC_DONT 0 /* Never send DF frames. */ | |
49 | #define IP_PMTUDISC_WANT 1 /* Use per route hints. */ | |
50 | #define IP_PMTUDISC_DO 2 /* Always DF. */ | |
51 | #define IP_PMTUDISC_PROBE 3 /* Ignore dst pmtu. */ | |
52 | /* Always use interface mtu (ignores dst pmtu) but don't set DF flag. | |
53 | Also incoming ICMP frag_needed notifications will be ignored on | |
54 | this socket to prevent accepting spoofed ones. */ | |
55 | #define IP_PMTUDISC_INTERFACE 4 | |
56 | /* Like IP_PMTUDISC_INTERFACE but allow packets to be fragmented. */ | |
57 | #define IP_PMTUDISC_OMIT 5 | |
58 | ||
77b93390 | 59 | #ifdef __USE_MISC |
0501d603 UD |
60 | /* Structure used to describe IP options for IP_OPTIONS and IP_RETOPTS. |
61 | The `ip_dst' field is used for the first-hop gateway when using a | |
62 | source route (this gets put into the header proper). */ | |
63 | struct ip_opts | |
64 | { | |
65 | struct in_addr ip_dst; /* First hop; zero without source route. */ | |
66 | char ip_opts[40]; /* Actually variable in size. */ | |
67 | }; | |
77b93390 | 68 | #endif |
0501d603 | 69 | |
6178c55b ST |
70 | /* Socket-level values for IPv6. */ |
71 | #define SOL_IPV6 41 | |
72 | #define SOL_ICMPV6 58 | |
73 | ||
0501d603 UD |
74 | /* IPV6 socket options. */ |
75 | #define IPV6_ADDRFORM 1 | |
2a517d91 ST |
76 | #define IPV6_2292PKTINFO 2 |
77 | #define IPV6_2292HOPOPTS 3 | |
78 | #define IPV6_2292DSTOPTS 4 | |
79 | #define IPV6_2292RTHDR 5 | |
80 | #define IPV6_2292PKTOPTIONS 6 | |
0501d603 | 81 | #define IPV6_CHECKSUM 7 |
2a517d91 | 82 | #define IPV6_2292HOPLIMIT 8 |
0501d603 | 83 | |
2a517d91 ST |
84 | #define IPV6_RXINFO IPV6_2292PKTINFO |
85 | #define IPV6_TXINFO IPV6_RXINFO | |
86 | #define SCM_SRCINFO IPV6_TXINFO | |
0501d603 UD |
87 | #define SCM_SRCRT IPV6_RXSRCRT |
88 | ||
89 | #define IPV6_UNICAST_HOPS 16 | |
90 | #define IPV6_MULTICAST_IF 17 | |
91 | #define IPV6_MULTICAST_HOPS 18 | |
92 | #define IPV6_MULTICAST_LOOP 19 | |
e7c036b3 UD |
93 | #define IPV6_JOIN_GROUP 20 |
94 | #define IPV6_LEAVE_GROUP 21 | |
767b40bf AJ |
95 | #define IPV6_ROUTER_ALERT 22 |
96 | #define IPV6_MTU_DISCOVER 23 | |
97 | #define IPV6_MTU 24 | |
98 | #define IPV6_RECVERR 25 | |
99 | #define IPV6_V6ONLY 26 | |
100 | #define IPV6_JOIN_ANYCAST 27 | |
101 | #define IPV6_LEAVE_ANYCAST 28 | |
e7c036b3 | 102 | |
4738bc21 ST |
103 | /* IPV6_MTU_DISCOVER values. */ |
104 | #define IPV6_PMTUDISC_DONT 0 /* Never send DF frames. */ | |
105 | #define IPV6_PMTUDISC_WANT 1 /* Use per route hints. */ | |
106 | #define IPV6_PMTUDISC_DO 2 /* Always DF. */ | |
107 | #define IPV6_PMTUDISC_PROBE 3 /* Ignore dst pmtu. */ | |
108 | #define IPV6_PMTUDISC_INTERFACE 4 /* See IP_PMTUDISC_INTERFACE. */ | |
109 | #define IPV6_PMTUDISC_OMIT 5 /* See IP_PMTUDISC_OMIT. */ | |
110 | ||
2a517d91 ST |
111 | /* Advanced API (RFC3542) (1). */ |
112 | #define IPV6_RECVPKTINFO 49 | |
113 | #define IPV6_PKTINFO 50 | |
d454fd21 ST |
114 | #define IPV6_RECVHOPLIMIT 51 |
115 | #define IPV6_HOPLIMIT 52 | |
116 | #define IPV6_RECVHOPOPTS 53 | |
117 | #define IPV6_HOPOPTS 54 | |
118 | #define IPV6_RTHDRDSTOPTS 55 | |
119 | #define IPV6_RECVRTHDR 56 | |
120 | #define IPV6_RTHDR 57 | |
121 | #define IPV6_RECVDSTOPTS 58 | |
122 | #define IPV6_DSTOPTS 59 | |
123 | #define IPV6_RECVPATHMTU 60 | |
124 | #define IPV6_PATHMTU 61 | |
125 | #define IPV6_DONTFRAG 62 | |
2a517d91 | 126 | |
af6e07da ST |
127 | /* Advanced API (RFC3542) (2). */ |
128 | #define IPV6_RECVTCLASS 66 | |
129 | #define IPV6_TCLASS 67 | |
130 | ||
131 | /* RFC5014. */ | |
132 | #define IPV6_ADDR_PREFERENCES 72 | |
133 | ||
134 | /* RFC5082. */ | |
135 | #define IPV6_MINHOPCOUNT 73 | |
136 | ||
e7c036b3 UD |
137 | /* Obsolete synonyms for the above. */ |
138 | #define IPV6_ADD_MEMBERSHIP IPV6_JOIN_GROUP | |
139 | #define IPV6_DROP_MEMBERSHIP IPV6_LEAVE_GROUP | |
2a517d91 ST |
140 | #define IPV6_RXHOPOPTS IPV6_2292HOPOPTS |
141 | #define IPV6_RXDSTOPTS IPV6_2292DSTOPTS | |
bfaf0bbb UD |
142 | |
143 | /* Routing header options for IPv6. */ | |
144 | #define IPV6_RTHDR_LOOSE 0 /* Hop doesn't need to be neighbour. */ | |
145 | #define IPV6_RTHDR_STRICT 1 /* Hop must be a neighbour. */ | |
146 | ||
147 | #define IPV6_RTHDR_TYPE_0 0 /* IPv6 Routing header type 0. */ |