[thirdparty/glibc.git] / sysdeps / unix / sysv / linux / bits / in.h

/* Copyright (C) 1991-1999, 2000, 2004 Free Software Foundation, Inc.
   This file is part of the GNU C Library.

   The GNU C Library is free software; you can redistribute it and/or
   modify it under the terms of the GNU Lesser General Public
   License as published by the Free Software Foundation; either
   version 2.1 of the License, or (at your option) any later version.

   The GNU C Library is distributed in the hope that it will be useful,
   but WITHOUT ANY WARRANTY; without even the implied warranty of
   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
   Lesser General Public License for more details.

   You should have received a copy of the GNU Lesser General Public
   License along with the GNU C Library; if not, write to the Free
   Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
   02111-1307 USA.  */

/* Linux version.  */

#ifndef _NETINET_IN_H
# error "Never use <bits/in.h> directly; include <netinet/in.h> instead."
#endif

/* Options for use with `getsockopt' and `setsockopt' at the IP level.
   The first word in the comment at the right is the data type used;
   "bool" means a boolean value stored in an `int'.  */
#define        IP_OPTIONS      4       /* ip_opts; IP per-packet options.  */
#define        IP_HDRINCL      3       /* int; Header is included with data.  */
#define        IP_TOS          1       /* int; IP type of service and precedence.  */
#define        IP_TTL          2       /* int; IP time to live.  */
#define        IP_RECVOPTS     6       /* bool; Receive all IP options w/datagram.  */
/* For BSD compatibility.  */
#define        IP_RECVRETOPTS  IP_RETOPTS       /* bool; Receive IP options for response.  */
#define        IP_RETOPTS      7       /* ip_opts; Set/get IP per-packet options.  */
#define IP_MULTICAST_IF 32	/* in_addr; set/get IP multicast i/f */
#define IP_MULTICAST_TTL 33	/* u_char; set/get IP multicast ttl */
#define IP_MULTICAST_LOOP 34	/* i_char; set/get IP multicast loopback */
#define IP_ADD_MEMBERSHIP 35	/* ip_mreq; add an IP group membership */
#define IP_DROP_MEMBERSHIP 36	/* ip_mreq; drop an IP group membership */
#define IP_UNBLOCK_SOURCE 37	/* ip_mreq_source: unblock data from source */
#define IP_BLOCK_SOURCE 38	/* ip_mreq_source: block data from source */
#define IP_ADD_SOURCE_MEMBERSHIP 39 /* ip_mreq_source: join source group */
#define IP_DROP_SOURCE_MEMBERSHIP 40 /* ip_mreq_source: leave source group */
#define IP_MSFILTER 41
#define MCAST_JOIN_GROUP 42	/* group_req: join any-source group */
#define MCAST_BLOCK_SOURCE 43	/* group_source_req: block from given group */
#define MCAST_UNBLOCK_SOURCE 44	/* group_source_req: unblock from given group*/
#define MCAST_LEAVE_GROUP 45	/* group_req: leave any-source group */
#define MCAST_JOIN_SOURCE_GROUP 46 /* group_source_req: join source-spec gr */
#define MCAST_LEAVE_SOURCE_GROUP 47 /* group_source_req: leave source-spec gr*/
#define MCAST_MSFILTER 48

#define MCAST_EXCLUDE   0
#define MCAST_INCLUDE   1

#define IP_ROUTER_ALERT    5	/* bool */
#define IP_PKTINFO         8	/* bool */
#define IP_PKTOPTIONS      9
#define IP_PMTUDISC        10	/* obsolete name? */
#define IP_MTU_DISCOVER    10	/* int; see below */
#define IP_RECVERR         11	/* bool */
#define IP_RECVTTL         12	/* bool */
#define IP_RECVTOS         13	/* bool */


/* IP_MTU_DISCOVER arguments.  */
#define IP_PMTUDISC_DONT   0	/* Never send DF frames.  */
#define IP_PMTUDISC_WANT   1	/* Use per route hints.  */
#define IP_PMTUDISC_DO     2	/* Always DF.  */

/* To select the IP level.  */
#define SOL_IP	0

#define IP_DEFAULT_MULTICAST_TTL        1
#define IP_DEFAULT_MULTICAST_LOOP       1
#define IP_MAX_MEMBERSHIPS              20

/* Structure used to describe IP options for IP_OPTIONS and IP_RETOPTS.
   The `ip_dst' field is used for the first-hop gateway when using a
   source route (this gets put into the header proper).  */
struct ip_opts
  {
    struct in_addr ip_dst;	/* First hop; zero without source route.  */
    char ip_opts[40];		/* Actually variable in size.  */
  };

/* Like `struct ip_mreq' but including interface specification by index.  */
struct ip_mreqn
  {
    struct in_addr imr_multiaddr;	/* IP multicast address of group */
    struct in_addr imr_address;		/* local IP address of interface */
    int	imr_ifindex;			/* Interface index */
  };

/* Structure used for IP_PKTINFO.  */
struct in_pktinfo
  {
    int ipi_ifindex;			/* Interface index  */
    struct in_addr ipi_spec_dst;	/* Routing destination address  */
    struct in_addr ipi_addr;		/* Header destination address  */
  };

/* Options for use with `getsockopt' and `setsockopt' at the IPv6 level.
   The first word in the comment at the right is the data type used;
   "bool" means a boolean value stored in an `int'.  */
#define IPV6_ADDRFORM		1
#define IPV6_PKTINFO		2
#define IPV6_HOPOPTS		3
#define IPV6_DSTOPTS		4
#define IPV6_RTHDR		5
#define IPV6_PKTOPTIONS		6
#define IPV6_CHECKSUM		7
#define IPV6_HOPLIMIT		8

#define SCM_SRCRT		IPV6_RXSRCRT

#define IPV6_NEXTHOP		9
#define IPV6_AUTHHDR		10
#define IPV6_UNICAST_HOPS	16
#define IPV6_MULTICAST_IF	17
#define IPV6_MULTICAST_HOPS	18
#define IPV6_MULTICAST_LOOP	19
#define IPV6_JOIN_GROUP		20
#define IPV6_LEAVE_GROUP	21
#define IPV6_ROUTER_ALERT	22
#define IPV6_MTU_DISCOVER	23
#define IPV6_MTU		24
#define IPV6_RECVERR		25
#define IPV6_V6ONLY		26
#define IPV6_JOIN_ANYCAST	27
#define IPV6_LEAVE_ANYCAST	28
#define IPV6_IPSEC_POLICY	34
#define IPV6_XFRM_POLICY	35

/* Obsolete synonyms for the above.  */
#define IPV6_ADD_MEMBERSHIP	IPV6_JOIN_GROUP
#define IPV6_DROP_MEMBERSHIP	IPV6_LEAVE_GROUP
#define IPV6_RXHOPOPTS		IPV6_HOPOPTS
#define IPV6_RXDSTOPTS		IPV6_DSTOPTS

/* IPV6_MTU_DISCOVER values.  */
#define IPV6_PMTUDISC_DONT	0	/* Never send DF frames.  */
#define IPV6_PMTUDISC_WANT	1	/* Use per route hints.  */
#define IPV6_PMTUDISC_DO	2	/* Always DF.  */

/* Socket level values for IPv6.  */
#define SOL_IPV6        41
#define SOL_ICMPV6      58

/* Routing header options for IPv6.  */
#define IPV6_RTHDR_LOOSE	0	/* Hop doesn't need to be neighbour. */
#define IPV6_RTHDR_STRICT	1	/* Hop must be a neighbour.  */

#define IPV6_RTHDR_TYPE_0	0	/* IPv6 Routing header type 0.  */
Commit	Line	Data
70682735	1	/* Copyright (C) 1991-1999, 2000, 2004 Free Software Foundation, Inc.
0501d603 UD	2	This file is part of the GNU C Library.
0501d603 UD	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 AJ	14	You should have received a copy of the GNU Lesser General Public
	15	License along with the GNU C Library; if not, write to the Free
	16	Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
	17	02111-1307 USA. */
0501d603 UD	18
	19	/* Linux version. */
	20
f4017d20 UD	21	#ifndef _NETINET_IN_H
	22	# error "Never use <bits/in.h> directly; include <netinet/in.h> instead."
	23	#endif
0501d603 UD	24
	25	/* Options for use with `getsockopt' and `setsockopt' at the IP level.
	26	The first word in the comment at the right is the data type used;
	27	"bool" means a boolean value stored in an `int'. */
b84515a1 RM	28	#define IP_OPTIONS 4 /* ip_opts; IP per-packet options. */
	29	#define IP_HDRINCL 3 /* int; Header is included with data. */
	30	#define IP_TOS 1 /* int; IP type of service and precedence. */
	31	#define IP_TTL 2 /* int; IP time to live. */
	32	#define IP_RECVOPTS 6 /* bool; Receive all IP options w/datagram. */
	33	/* For BSD compatibility. */
	34	#define IP_RECVRETOPTS IP_RETOPTS /* bool; Receive IP options for response. */
	35	#define IP_RETOPTS 7 /* ip_opts; Set/get IP per-packet options. */
70682735 UD	36	#define IP_MULTICAST_IF 32 /* in_addr; set/get IP multicast i/f */
	37	#define IP_MULTICAST_TTL 33 /* u_char; set/get IP multicast ttl */
	38	#define IP_MULTICAST_LOOP 34 /* i_char; set/get IP multicast loopback */
	39	#define IP_ADD_MEMBERSHIP 35 /* ip_mreq; add an IP group membership */
	40	#define IP_DROP_MEMBERSHIP 36 /* ip_mreq; drop an IP group membership */
	41	#define IP_UNBLOCK_SOURCE 37 /* ip_mreq_source: unblock data from source */
	42	#define IP_BLOCK_SOURCE 38 /* ip_mreq_source: block data from source */
	43	#define IP_ADD_SOURCE_MEMBERSHIP 39 /* ip_mreq_source: join source group */
	44	#define IP_DROP_SOURCE_MEMBERSHIP 40 /* ip_mreq_source: leave source group */
	45	#define IP_MSFILTER 41
b82276d1 UD	46	#define MCAST_JOIN_GROUP 42 /* group_req: join any-source group */
	47	#define MCAST_BLOCK_SOURCE 43 /* group_source_req: block from given group */
	48	#define MCAST_UNBLOCK_SOURCE 44 /* group_source_req: unblock from given group*/
	49	#define MCAST_LEAVE_GROUP 45 /* group_req: leave any-source group */
	50	#define MCAST_JOIN_SOURCE_GROUP 46 /* group_source_req: join source-spec gr */
	51	#define MCAST_LEAVE_SOURCE_GROUP 47 /* group_source_req: leave source-spec gr*/
70682735 UD	52	#define MCAST_MSFILTER 48
70682735 UD	53
d8433bd0 UD	54	#define MCAST_EXCLUDE 0
d8433bd0 UD	55	#define MCAST_INCLUDE 1
b84515a1	56
c10bb795	57	#define IP_ROUTER_ALERT 5 /* bool */
c10bb795 UD	58	#define IP_PKTINFO 8 /* bool */
	59	#define IP_PKTOPTIONS 9
	60	#define IP_PMTUDISC 10 /* obsolete name? */
	61	#define IP_MTU_DISCOVER 10 /* int; see below */
	62	#define IP_RECVERR 11 /* bool */
	63	#define IP_RECVTTL 12 /* bool */
	64	#define IP_RECVTOS 13 /* bool */
0501d603	65
c10bb795 UD	66
	67	/* IP_MTU_DISCOVER arguments. */
	68	#define IP_PMTUDISC_DONT 0 /* Never send DF frames. */
	69	#define IP_PMTUDISC_WANT 1 /* Use per route hints. */
	70	#define IP_PMTUDISC_DO 2 /* Always DF. */
	71
0501d603 UD	72	/* To select the IP level. */
	73	#define SOL_IP 0
	74
c10bb795 UD	75	#define IP_DEFAULT_MULTICAST_TTL 1
	76	#define IP_DEFAULT_MULTICAST_LOOP 1
	77	#define IP_MAX_MEMBERSHIPS 20
	78
b84515a1 RM	79	/* Structure used to describe IP options for IP_OPTIONS and IP_RETOPTS.
	80	The `ip_dst' field is used for the first-hop gateway when using a
	81	source route (this gets put into the header proper). */
0501d603 UD	82	struct ip_opts
	83	{
	84	struct in_addr ip_dst; /* First hop; zero without source route. */
	85	char ip_opts[40]; /* Actually variable in size. */
	86	};
	87
8f73811b	88	/* Like `struct ip_mreq' but including interface specification by index. */
c10bb795 UD	89	struct ip_mreqn
	90	{
	91	struct in_addr imr_multiaddr; /* IP multicast address of group */
	92	struct in_addr imr_address; /* local IP address of interface */
	93	int imr_ifindex; /* Interface index */
	94	};
	95
ef5d6645 UD	96	/* Structure used for IP_PKTINFO. */
	97	struct in_pktinfo
	98	{
	99	int ipi_ifindex; /* Interface index */
	100	struct in_addr ipi_spec_dst; /* Routing destination address */
	101	struct in_addr ipi_addr; /* Header destination address */
	102	};
	103
c10bb795 UD	104	/* Options for use with `getsockopt' and `setsockopt' at the IPv6 level.
	105	The first word in the comment at the right is the data type used;
	106	"bool" means a boolean value stored in an `int'. */
0501d603	107	#define IPV6_ADDRFORM 1
a334319f UD	108	#define IPV6_PKTINFO 2
	109	#define IPV6_HOPOPTS 3
	110	#define IPV6_DSTOPTS 4
	111	#define IPV6_RTHDR 5
	112	#define IPV6_PKTOPTIONS 6
0501d603	113	#define IPV6_CHECKSUM 7
a334319f	114	#define IPV6_HOPLIMIT 8
b84515a1 RM	115
	116	#define SCM_SRCRT IPV6_RXSRCRT
	117
c10bb795 UD	118	#define IPV6_NEXTHOP 9
c10bb795 UD	119	#define IPV6_AUTHHDR 10
0501d603 UD	120	#define IPV6_UNICAST_HOPS 16
	121	#define IPV6_MULTICAST_IF 17
	122	#define IPV6_MULTICAST_HOPS 18
	123	#define IPV6_MULTICAST_LOOP 19
e7c036b3 UD	124	#define IPV6_JOIN_GROUP 20
e7c036b3 UD	125	#define IPV6_LEAVE_GROUP 21
ec986e23	126	#define IPV6_ROUTER_ALERT 22
ad483238 UD	127	#define IPV6_MTU_DISCOVER 23
	128	#define IPV6_MTU 24
	129	#define IPV6_RECVERR 25
2229b771 UD	130	#define IPV6_V6ONLY 26
	131	#define IPV6_JOIN_ANYCAST 27
	132	#define IPV6_LEAVE_ANYCAST 28
	133	#define IPV6_IPSEC_POLICY 34
	134	#define IPV6_XFRM_POLICY 35
c10bb795	135
e7c036b3	136	/* Obsolete synonyms for the above. */
e7c036b3 UD	137	#define IPV6_ADD_MEMBERSHIP IPV6_JOIN_GROUP
e7c036b3 UD	138	#define IPV6_DROP_MEMBERSHIP IPV6_LEAVE_GROUP
b84515a1 RM	139	#define IPV6_RXHOPOPTS IPV6_HOPOPTS
b84515a1 RM	140	#define IPV6_RXDSTOPTS IPV6_DSTOPTS
c10bb795 UD	141
	142	/* IPV6_MTU_DISCOVER values. */
	143	#define IPV6_PMTUDISC_DONT 0 /* Never send DF frames. */
	144	#define IPV6_PMTUDISC_WANT 1 /* Use per route hints. */
	145	#define IPV6_PMTUDISC_DO 2 /* Always DF. */
	146
	147	/* Socket level values for IPv6. */
	148	#define SOL_IPV6 41
	149	#define SOL_ICMPV6 58
bfaf0bbb UD	150
	151	/* Routing header options for IPv6. */
	152	#define IPV6_RTHDR_LOOSE 0 /* Hop doesn't need to be neighbour. */
	153	#define IPV6_RTHDR_STRICT 1 /* Hop must be a neighbour. */
	154
	155	#define IPV6_RTHDR_TYPE_0 0 /* IPv6 Routing header type 0. */