X-Git-Url: https://git.saurik.com/apple/xnu.git/blobdiff_plain/0b4e3aa066abc0728aacb4bbeb86f53f9737156e..bb59bff194111743b33cc36712410b5656329d3c:/bsd/netinet/in.h diff --git a/bsd/netinet/in.h b/bsd/netinet/in.h index 12bc02389..53c436517 100644 --- a/bsd/netinet/in.h +++ b/bsd/netinet/in.h @@ -1,23 +1,29 @@ /* - * Copyright (c) 2000 Apple Computer, Inc. All rights reserved. + * Copyright (c) 2000-2013 Apple Inc. All rights reserved. * - * @APPLE_LICENSE_HEADER_START@ + * @APPLE_OSREFERENCE_LICENSE_HEADER_START@ * - * The contents of this file constitute Original Code as defined in and - * are subject to the Apple Public Source License Version 1.1 (the - * "License"). You may not use this file except in compliance with the - * License. Please obtain a copy of the License at - * http://www.apple.com/publicsource and read it before using this file. + * This file contains Original Code and/or Modifications of Original Code + * as defined in and that are subject to the Apple Public Source License + * Version 2.0 (the 'License'). You may not use this file except in + * compliance with the License. The rights granted to you under the License + * may not be used to create, or enable the creation or redistribution of, + * unlawful or unlicensed copies of an Apple operating system, or to + * circumvent, violate, or enable the circumvention or violation of, any + * terms of an Apple operating system software license agreement. * - * This Original Code and all software distributed under the License are - * distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, EITHER + * Please obtain a copy of the License at + * http://www.opensource.apple.com/apsl/ and read it before using this file. + * + * The Original Code and all software distributed under the License are + * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES, * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY, - * FITNESS FOR A PARTICULAR PURPOSE OR NON-INFRINGEMENT. Please see the - * License for the specific language governing rights and limitations - * under the License. + * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT. + * Please see the License for the specific language governing rights and + * limitations under the License. * - * @APPLE_LICENSE_HEADER_END@ + * @APPLE_OSREFERENCE_LICENSE_HEADER_END@ */ /* * Copyright (c) 1982, 1986, 1990, 1993 @@ -52,10 +58,35 @@ * SUCH DAMAGE. * * @(#)in.h 8.3 (Berkeley) 1/3/94 + * $FreeBSD: src/sys/netinet/in.h,v 1.48.2.2 2001/04/21 14:53:06 ume Exp $ */ #ifndef _NETINET_IN_H_ #define _NETINET_IN_H_ +#include +#include +#include /* uint(8|16|32)_t */ + +#ifndef KERNEL +#include +#endif + +#include + +#include + +/* + * POSIX 1003.1-2003 + * "Inclusion of the header may also make visible all + * symbols from and ". + */ +#include + +/* + * The following two #includes insure htonl and family are defined + */ +#include +#include /* * Constants and structures defined by the internet system, @@ -66,13 +97,18 @@ * Protocols (RFC 1700) */ #define IPPROTO_IP 0 /* dummy for IP */ -#define IPPROTO_HOPOPTS 0 /* IP6 hop-by-hop options */ +#if !defined(_POSIX_C_SOURCE) || defined(_DARWIN_C_SOURCE) +#define IPPROTO_HOPOPTS 0 /* IP6 hop-by-hop options */ +#endif /* (!_POSIX_C_SOURCE || _DARWIN_C_SOURCE) */ #define IPPROTO_ICMP 1 /* control message protocol */ +#if !defined(_POSIX_C_SOURCE) || defined(_DARWIN_C_SOURCE) #define IPPROTO_IGMP 2 /* group mgmt protocol */ #define IPPROTO_GGP 3 /* gateway^2 (deprecated) */ -#define IPPROTO_IPIP 4 /* IP encapsulation in IP */ -#define IPPROTO_IPV4 4 /* IP header */ +#define IPPROTO_IPV4 4 /* IPv4 encapsulation */ +#define IPPROTO_IPIP IPPROTO_IPV4 /* for compatibility */ +#endif /* (!_POSIX_C_SOURCE || _DARWIN_C_SOURCE) */ #define IPPROTO_TCP 6 /* tcp */ +#if !defined(_POSIX_C_SOURCE) || defined(_DARWIN_C_SOURCE) #define IPPROTO_ST 7 /* Stream protocol II */ #define IPPROTO_EGP 8 /* exterior gateway protocol */ #define IPPROTO_PIGP 9 /* private interior gateway */ @@ -83,7 +119,9 @@ #define IPPROTO_EMCON 14 /* EMCON */ #define IPPROTO_XNET 15 /* Cross Net Debugger */ #define IPPROTO_CHAOS 16 /* Chaos*/ +#endif /* (!_POSIX_C_SOURCE || _DARWIN_C_SOURCE) */ #define IPPROTO_UDP 17 /* user datagram protocol */ +#if !defined(_POSIX_C_SOURCE) || defined(_DARWIN_C_SOURCE) #define IPPROTO_MUX 18 /* Multiplexing */ #define IPPROTO_MEAS 19 /* DCN Measurement Subsystems */ #define IPPROTO_HMP 20 /* Host Monitoring */ @@ -107,7 +145,9 @@ #define IPPROTO_CMTP 38 /* Control Message Transport */ #define IPPROTO_TPXX 39 /* TP++ Transport */ #define IPPROTO_IL 40 /* IL transport protocol */ +#endif /* (!_POSIX_C_SOURCE || _DARWIN_C_SOURCE) */ #define IPPROTO_IPV6 41 /* IP6 header */ +#if !defined(_POSIX_C_SOURCE) || defined(_DARWIN_C_SOURCE) #define IPPROTO_SDRP 42 /* Source Demand Routing */ #define IPPROTO_ROUTING 43 /* IP6 routing header */ #define IPPROTO_FRAGMENT 44 /* IP6 fragmentation header */ @@ -116,8 +156,8 @@ #define IPPROTO_GRE 47 /* General Routing Encap. */ #define IPPROTO_MHRP 48 /* Mobile Host Routing */ #define IPPROTO_BHA 49 /* BHA */ -#define IPPROTO_ESP 50 /* SIPP Encap Sec. Payload */ -#define IPPROTO_AH 51 /* SIPP Auth Header */ +#define IPPROTO_ESP 50 /* IP6 Encap Sec. Payload */ +#define IPPROTO_AH 51 /* IP6 Auth Header */ #define IPPROTO_INLSP 52 /* Integ. Net Layer Security */ #define IPPROTO_SWIPE 53 /* IP with encryption */ #define IPPROTO_NHRP 54 /* Next Hop Resolution */ @@ -165,21 +205,23 @@ #define IPPROTO_ENCAP 98 /* encapsulation header */ #define IPPROTO_APES 99 /* any private encr. scheme */ #define IPPROTO_GMTP 100 /* GMTP*/ -#define IPPROTO_IPCOMP 108 /* payload compression (IPComp) */ /* 101-254: Partly Unassigned */ -#if defined(PM) -#define IPPROTO_PM 101 /* PM - Packet Management by SuMiRe */ -#endif -#define IPPROTO_PIM 103 /* Protocol Independent Mcast */ +#define IPPROTO_PIM 103 /* Protocol Independent Mcast */ +#define IPPROTO_IPCOMP 108 /* payload compression (IPComp) */ #define IPPROTO_PGM 113 /* PGM */ +#define IPPROTO_SCTP 132 /* SCTP */ /* 255: Reserved */ /* BSD Private, local use, namespace incursion */ #define IPPROTO_DIVERT 254 /* divert pseudo-protocol */ +#endif /* (!_POSIX_C_SOURCE || _DARWIN_C_SOURCE) */ #define IPPROTO_RAW 255 /* raw IP packet */ + +#if !defined(_POSIX_C_SOURCE) || defined(_DARWIN_C_SOURCE) #define IPPROTO_MAX 256 /* last return value of *_input(), meaning "all job for this pkt is done". */ #define IPPROTO_DONE 257 +#endif /* (_POSIX_C_SOURCE && !_DARWIN_C_SOURCE) */ /* * Local port number conventions: @@ -226,13 +268,18 @@ * */ +#define __DARWIN_IPPORT_RESERVED 1024 + +#if !defined(_POSIX_C_SOURCE) || defined(_DARWIN_C_SOURCE) /* * Ports < IPPORT_RESERVED are reserved for * privileged processes (e.g. root). (IP_PORTRANGE_LOW) * Ports > IPPORT_USERRESERVED are reserved * for servers, not necessarily privileged. (IP_PORTRANGE_DEFAULT) */ -#define IPPORT_RESERVED 1024 +#ifndef IPPORT_RESERVED +#define IPPORT_RESERVED __DARWIN_IPPORT_RESERVED +#endif #define IPPORT_USERRESERVED 5000 /* @@ -248,12 +295,13 @@ * have a fit if we use. */ #define IPPORT_RESERVEDSTART 600 +#endif /* (!_POSIX_C_SOURCE || _DARWIN_C_SOURCE) */ /* * Internet address (a structure for historical reasons) */ struct in_addr { - u_int32_t s_addr; + in_addr_t s_addr; }; /* @@ -261,6 +309,10 @@ struct in_addr { * On subnets, the decomposition of addresses to host and net parts * is done according to subnet mask, not the masks here. */ +#define INADDR_ANY (u_int32_t)0x00000000 +#define INADDR_BROADCAST (u_int32_t)0xffffffff /* must be masked */ + +#if !defined(_POSIX_C_SOURCE) || defined(_DARWIN_C_SOURCE) #define IN_CLASSA(i) (((u_int32_t)(i) & 0x80000000) == 0) #define IN_CLASSA_NET 0xff000000 #define IN_CLASSA_NSHIFT 24 @@ -287,9 +339,8 @@ struct in_addr { #define IN_EXPERIMENTAL(i) (((u_int32_t)(i) & 0xf0000000) == 0xf0000000) #define IN_BADCLASS(i) (((u_int32_t)(i) & 0xf0000000) == 0xf0000000) -#define INADDR_ANY (u_int32_t)0x00000000 #define INADDR_LOOPBACK (u_int32_t)0x7f000001 -#define INADDR_BROADCAST (u_int32_t)0xffffffff /* must be masked */ + #ifndef KERNEL #define INADDR_NONE 0xffffffff /* -1 return */ #endif @@ -297,26 +348,73 @@ struct in_addr { #define INADDR_UNSPEC_GROUP (u_int32_t)0xe0000000 /* 224.0.0.0 */ #define INADDR_ALLHOSTS_GROUP (u_int32_t)0xe0000001 /* 224.0.0.1 */ #define INADDR_ALLRTRS_GROUP (u_int32_t)0xe0000002 /* 224.0.0.2 */ +#define INADDR_ALLRPTS_GROUP (u_int32_t)0xe0000016 /* 224.0.0.22, IGMPv3 */ +#define INADDR_CARP_GROUP (u_int32_t)0xe0000012 /* 224.0.0.18 */ +#define INADDR_PFSYNC_GROUP (u_int32_t)0xe00000f0 /* 224.0.0.240 */ +#define INADDR_ALLMDNS_GROUP (u_int32_t)0xe00000fb /* 224.0.0.251 */ #define INADDR_MAX_LOCAL_GROUP (u_int32_t)0xe00000ff /* 224.0.0.255 */ +#ifdef __APPLE__ #define IN_LINKLOCALNETNUM (u_int32_t)0xA9FE0000 /* 169.254.0.0 */ #define IN_LINKLOCAL(i) (((u_int32_t)(i) & IN_CLASSB_NET) == IN_LINKLOCALNETNUM) +#define IN_LOOPBACK(i) (((u_int32_t)(i) & 0xff000000) == 0x7f000000) +#define IN_ZERONET(i) (((u_int32_t)(i) & 0xff000000) == 0) + +#define IN_PRIVATE(i) ((((u_int32_t)(i) & 0xff000000) == 0x0a000000) || \ + (((u_int32_t)(i) & 0xfff00000) == 0xac100000) || \ + (((u_int32_t)(i) & 0xffff0000) == 0xc0a80000)) + +#define IN_LOCAL_GROUP(i) (((u_int32_t)(i) & 0xffffff00) == 0xe0000000) + +#define IN_ANY_LOCAL(i) (IN_LINKLOCAL(i) || IN_LOCAL_GROUP(i)) +#endif #define IN_LOOPBACKNET 127 /* official! */ +#endif /* (!_POSIX_C_SOURCE || _DARWIN_C_SOURCE) */ /* * Socket address, internet style. */ struct sockaddr_in { - u_char sin_len; - u_char sin_family; - u_short sin_port; + __uint8_t sin_len; + sa_family_t sin_family; + in_port_t sin_port; struct in_addr sin_addr; - char sin_zero[8]; + char sin_zero[8]; }; +#ifdef PRIVATE +/* + * sockaddr_in with scope ID field; this is used internally to keep + * track of scoped route entries in the routing table. The fact that + * such a value is embedded in the structure is an artifact of the + * current implementation which could change in future. + */ +struct sockaddr_inifscope { + __uint8_t sin_len; + sa_family_t sin_family; + in_port_t sin_port; + struct in_addr sin_addr; + /* + * To avoid possible conflict with an overlaid sockaddr_inarp + * having sin_other set to SIN_PROXY, we use the first 4-bytes + * of sin_zero since sin_srcaddr is one of the unused fields + * in sockaddr_inarp. + */ + union { + char sin_zero[8]; + struct { + __uint32_t ifscope; + } _in_index; + } un; +#define sin_scope_id un._in_index.ifscope +}; + +#endif /* PRIVATE */ + #define INET_ADDRSTRLEN 16 +#if !defined(_POSIX_C_SOURCE) || defined(_DARWIN_C_SOURCE) /* * Structure used to describe IP options. * Used to store options internally, to pass them to a process, @@ -352,31 +450,88 @@ struct ip_opts { #define IP_RSVP_VIF_ON 17 /* set RSVP per-vif socket */ #define IP_RSVP_VIF_OFF 18 /* unset RSVP per-vif socket */ #define IP_PORTRANGE 19 /* int; range to choose for unspec port */ -#define IP_RECVIF 20 /* bool; receive reception if w/dgram */ -#define IP_IPSEC_POLICY 21 /* int; set/get security policy */ -#define IP_FAITH 22 /* bool; accept FAITH'ed connections */ +#define IP_RECVIF 20 /* bool; receive reception if w/dgram */ +/* for IPSEC */ +#define IP_IPSEC_POLICY 21 /* int; set/get security policy */ +#define IP_FAITH 22 /* deprecated */ +#ifdef __APPLE__ #define IP_STRIPHDR 23 /* bool: drop receive of raw IP header */ - - -#define IP_FW_ADD 50 /* add a firewall rule to chain */ -#define IP_FW_DEL 51 /* delete a firewall rule from chain */ -#define IP_FW_FLUSH 52 /* flush firewall rule chain */ -#define IP_FW_ZERO 53 /* clear single/all firewall counter(s) */ -#define IP_FW_GET 54 /* get entire firewall rule chain */ -#define IP_NAT 55 /* set/get NAT opts */ -#define IP_FW_RESETLOG 56 /* reset logging counters */ +#endif +#define IP_RECVTTL 24 /* bool; receive reception TTL w/dgram */ +#define IP_BOUND_IF 25 /* int; set/get bound interface */ +#define IP_PKTINFO 26 /* get pktinfo on recv socket, set src on sent dgram */ +#define IP_RECVPKTINFO IP_PKTINFO /* receive pktinfo w/dgram */ + + +#define IP_FW_ADD 40 /* add a firewall rule to chain */ +#define IP_FW_DEL 41 /* delete a firewall rule from chain */ +#define IP_FW_FLUSH 42 /* flush firewall rule chain */ +#define IP_FW_ZERO 43 /* clear single/all firewall counter(s) */ +#define IP_FW_GET 44 /* get entire firewall rule chain */ +#define IP_FW_RESETLOG 45 /* reset logging counters */ + +/* These older firewall socket option codes are maintained for backward compatibility. */ +#define IP_OLD_FW_ADD 50 /* add a firewall rule to chain */ +#define IP_OLD_FW_DEL 51 /* delete a firewall rule from chain */ +#define IP_OLD_FW_FLUSH 52 /* flush firewall rule chain */ +#define IP_OLD_FW_ZERO 53 /* clear single/all firewall counter(s) */ +#define IP_OLD_FW_GET 54 /* get entire firewall rule chain */ +#define IP_NAT__XXX 55 /* set/get NAT opts XXX Deprecated, do not use */ +#define IP_OLD_FW_RESETLOG 56 /* reset logging counters */ #define IP_DUMMYNET_CONFIGURE 60 /* add/configure a dummynet pipe */ #define IP_DUMMYNET_DEL 61 /* delete a dummynet pipe from chain */ #define IP_DUMMYNET_FLUSH 62 /* flush dummynet */ #define IP_DUMMYNET_GET 64 /* get entire dummynet pipes */ +#define IP_TRAFFIC_MGT_BACKGROUND 65 /* int*; get background IO flags; set background IO */ +#define IP_MULTICAST_IFINDEX 66 /* int*; set/get IP multicast i/f index */ + +/* IPv4 Source Filter Multicast API [RFC3678] */ +#define IP_ADD_SOURCE_MEMBERSHIP 70 /* join a source-specific group */ +#define IP_DROP_SOURCE_MEMBERSHIP 71 /* drop a single source */ +#define IP_BLOCK_SOURCE 72 /* block a source */ +#define IP_UNBLOCK_SOURCE 73 /* unblock a source */ + +/* The following option is private; do not use it from user applications. */ +#define IP_MSFILTER 74 /* set/get filter list */ + +/* Protocol Independent Multicast API [RFC3678] */ +#define MCAST_JOIN_GROUP 80 /* join an any-source group */ +#define MCAST_LEAVE_GROUP 81 /* leave all sources for group */ +#define MCAST_JOIN_SOURCE_GROUP 82 /* join a source-specific group */ +#define MCAST_LEAVE_SOURCE_GROUP 83 /* leave a single source */ +#define MCAST_BLOCK_SOURCE 84 /* block a source */ +#define MCAST_UNBLOCK_SOURCE 85 /* unblock a source */ + +#ifdef PRIVATE +#define IP_FORCE_OUT_IFP 69 /* deprecated; use IP_BOUND_IF instead */ +#define IP_NO_IFT_CELLULAR 6969 /* for internal use only */ +#define IP_NO_IFT_PDP IP_NO_IFT_CELLULAR /* deprecated */ +#define IP_OUT_IF 9696 /* for internal use only */ +#endif /* PRIVATE */ + /* * Defaults and limits for options */ #define IP_DEFAULT_MULTICAST_TTL 1 /* normally limit m'casts to 1 hop */ #define IP_DEFAULT_MULTICAST_LOOP 1 /* normally hear sends if a member */ -#define IP_MAX_MEMBERSHIPS 20 /* per socket */ + +/* + * The imo_membership vector for each socket is now dynamically allocated at + * run-time, bounded by USHRT_MAX, and is reallocated when needed, sized + * according to a power-of-two increment. + */ +#define IP_MIN_MEMBERSHIPS 31 +#define IP_MAX_MEMBERSHIPS 4095 + +/* + * Default resource limits for IPv4 multicast source filtering. + * These may be modified by sysctl. + */ +#define IP_MAX_GROUP_SRC_FILTER 512 /* sources per group */ +#define IP_MAX_SOCK_SRC_FILTER 128 /* sources per socket/group */ +#define IP_MAX_SOCK_MUTE_FILTER 128 /* XXX no longer used */ /* * Argument structure for IP_ADD_MEMBERSHIP and IP_DROP_MEMBERSHIP. @@ -386,6 +541,105 @@ struct ip_mreq { struct in_addr imr_interface; /* local IP address of interface */ }; +/* + * Modified argument structure for IP_MULTICAST_IF, obtained from Linux. + * This is used to specify an interface index for multicast sends, as + * the IPv4 legacy APIs do not support this (unless IP_SENDIF is available). + */ +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; cast to uint32_t */ +}; + +#pragma pack(4) +/* + * Argument structure for IPv4 Multicast Source Filter APIs. [RFC3678] + */ +struct ip_mreq_source { + struct in_addr imr_multiaddr; /* IP multicast address of group */ + struct in_addr imr_sourceaddr; /* IP address of source */ + struct in_addr imr_interface; /* local IP address of interface */ +}; + +/* + * Argument structures for Protocol-Independent Multicast Source + * Filter APIs. [RFC3678] + */ +struct group_req { + uint32_t gr_interface; /* interface index */ + struct sockaddr_storage gr_group; /* group address */ +}; + +struct group_source_req { + uint32_t gsr_interface; /* interface index */ + struct sockaddr_storage gsr_group; /* group address */ + struct sockaddr_storage gsr_source; /* source address */ +}; + +#ifndef __MSFILTERREQ_DEFINED +#define __MSFILTERREQ_DEFINED +/* + * The following structure is private; do not use it from user applications. + * It is used to communicate IP_MSFILTER/IPV6_MSFILTER information between + * the RFC 3678 libc functions and the kernel. + */ +struct __msfilterreq { + uint32_t msfr_ifindex; /* interface index */ + uint32_t msfr_fmode; /* filter mode for group */ + uint32_t msfr_nsrcs; /* # of sources in msfr_srcs */ + uint32_t __msfr_align; + struct sockaddr_storage msfr_group; /* group address */ + struct sockaddr_storage *msfr_srcs; +}; + +#ifdef BSD_KERNEL_PRIVATE +struct __msfilterreq32 { + uint32_t msfr_ifindex; /* interface index */ + uint32_t msfr_fmode; /* filter mode for group */ + uint32_t msfr_nsrcs; /* # of sources in msfr_srcs */ + uint32_t __msfr_align; + struct sockaddr_storage msfr_group; /* group address */ + user32_addr_t msfr_srcs; +}; + +struct __msfilterreq64 { + uint32_t msfr_ifindex; /* interface index */ + uint32_t msfr_fmode; /* filter mode for group */ + uint32_t msfr_nsrcs; /* # of sources in msfr_srcs */ + uint32_t __msfr_align; + struct sockaddr_storage msfr_group; /* group address */ + user64_addr_t msfr_srcs; +}; +#endif /* BSD_KERNEL_PRIVATE */ +#endif /* __MSFILTERREQ_DEFINED */ + +#pragma pack() +struct sockaddr; + +#ifndef KERNEL +/* + * Advanced (Full-state) APIs [RFC3678] + * The RFC specifies uint_t for the 6th argument to [sg]etsourcefilter(). + * We use uint32_t here to be consistent. + */ +int setipv4sourcefilter(int, struct in_addr, struct in_addr, uint32_t, + uint32_t, struct in_addr *) __OSX_AVAILABLE_STARTING(__MAC_10_7, __IPHONE_4_3); +int getipv4sourcefilter(int, struct in_addr, struct in_addr, uint32_t *, + uint32_t *, struct in_addr *) __OSX_AVAILABLE_STARTING(__MAC_10_7, __IPHONE_4_3); +int setsourcefilter(int, uint32_t, struct sockaddr *, socklen_t, + uint32_t, uint32_t, struct sockaddr_storage *) __OSX_AVAILABLE_STARTING(__MAC_10_7, __IPHONE_4_3); +int getsourcefilter(int, uint32_t, struct sockaddr *, socklen_t, + uint32_t *, uint32_t *, struct sockaddr_storage *) __OSX_AVAILABLE_STARTING(__MAC_10_7, __IPHONE_4_3); +#endif + +/* + * Filter modes; also used to represent per-socket filter mode internally. + */ +#define MCAST_UNDEFINED 0 /* fmode: not yet defined */ +#define MCAST_INCLUDE 1 /* fmode: include these source(s) */ +#define MCAST_EXCLUDE 2 /* fmode: exclude these source(s) */ + /* * Argument for IP_PORTRANGE: * - which range to search when port is unspecified at bind() or connect() @@ -394,14 +648,41 @@ struct ip_mreq { #define IP_PORTRANGE_HIGH 1 /* "high" - request firewall bypass */ #define IP_PORTRANGE_LOW 2 /* "low" - vouchsafe security */ + +/* + * IP_PKTINFO: Packet information (equivalent to RFC2292 sec 5 for IPv4) + * This structure is used for + * + * 1) Receiving ancilliary data about the datagram if IP_PKTINFO sockopt is + * set on the socket. In this case ipi_ifindex will contain the interface + * index the datagram was received on, ipi_addr is the IP address the + * datagram was received to. + * + * 2) Sending a datagram using a specific interface or IP source address. + * if ipi_ifindex is set to non-zero when in_pktinfo is passed as + * ancilliary data of type IP_PKTINFO, this will be used as the source + * interface to send the datagram from. If ipi_ifindex is null, ip_spec_dst + * will be used for the source address. + * + * Note: if IP_BOUND_IF is set on the socket, ipi_ifindex in the ancillary + * IP_PKTINFO option silently overrides the bound interface when it is + * specified during send time. + */ +struct in_pktinfo { + unsigned int ipi_ifindex; /* send/recv interface index */ + struct in_addr ipi_spec_dst; /* Local address */ + struct in_addr ipi_addr; /* IP Header dst address */ +}; + /* * Definitions for inet sysctl operations. * * Third level is protocol number. * Fourth level is desired variable within that protocol. */ -#define IPPROTO_MAXID (IPPROTO_ESP + 1) /* don't list to IPPROTO_MAX */ +#define IPPROTO_MAXID (IPPROTO_AH + 1) /* don't list to IPPROTO_MAX */ +#ifdef BSD_KERNEL_PRIVATE #define CTL_IPPROTO_NAMES { \ { "ip", CTLTYPE_NODE }, \ { "icmp", CTLTYPE_NODE }, \ @@ -456,6 +737,7 @@ struct ip_mreq { { 0, 0 }, \ { "ipsec", CTLTYPE_NODE }, \ } +#endif /* BSD_KERNEL_PRIVATE */ /* * Names for IP sysctl objects @@ -472,14 +754,16 @@ struct ip_mreq { #define IPCTL_SOURCEROUTE 8 /* may perform source routes */ #define IPCTL_DIRECTEDBROADCAST 9 /* may re-broadcast received packets */ #define IPCTL_INTRQMAXLEN 10 /* max length of netisr queue */ -#define IPCTL_INTRQDROPS 11 /* number of netisr q drops */ +#define IPCTL_INTRQDROPS 11 /* number of netisr q drops */ #define IPCTL_STATS 12 /* ipstat structure */ #define IPCTL_ACCEPTSOURCEROUTE 13 /* may accept source routed packets */ -#define IPCTL_FASTFORWARDING 14 /* use fast IP forwarding code */ -#define IPCTL_KEEPFAITH 15 -#define IPCTL_GIF_TTL 16 /* default TTL for gif encap packet */ +#define IPCTL_FASTFORWARDING 14 /* use fast IP forwarding code */ +#define IPCTL_KEEPFAITH 15 /* deprecated */ +#define IPCTL_GIF_TTL 16 /* default TTL for gif encap packet */ #define IPCTL_MAXID 17 +#ifdef BSD_KERNEL_PRIVATE + #define IPCTL_NAMES { \ { 0, 0 }, \ { "forwarding", CTLTYPE_INT }, \ @@ -499,24 +783,98 @@ struct ip_mreq { { "keepfaith", CTLTYPE_INT }, \ { "gifttl", CTLTYPE_INT }, \ } +#endif /* BSD_KERNEL_PRIVATE */ +#endif /* (!_POSIX_C_SOURCE || _DARWIN_C_SOURCE) */ /* INET6 stuff */ #define __KAME_NETINET_IN_H_INCLUDED_ #include #undef __KAME_NETINET_IN_H_INCLUDED_ +#ifdef PRIVATE +/* + * Minimal sized structure to hold an IPv4 or IPv6 socket address + * as sockaddr_storage can waste memory + */ +union sockaddr_in_4_6 { + struct sockaddr sa; + struct sockaddr_in sin; + struct sockaddr_in6 sin6; +}; +#endif /* PRIVATE */ + #ifdef KERNEL -struct ifnet; struct mbuf; /* forward declarations for Standard C */ - -int in_broadcast __P((struct in_addr, struct ifnet *)); -int in_canforward __P((struct in_addr)); -int in_cksum __P((struct mbuf *, int)); -int in_cksum_skip __P((struct mbuf *, u_short, u_short)); -u_short in_addword __P((u_short, u_short)); -u_short in_pseudo __P((u_int, u_int, u_int)); -int in_localaddr __P((struct in_addr)); -char *inet_ntoa __P((struct in_addr)); /* in libkern */ -u_long in_netof __P((struct in_addr)); +#ifdef BSD_KERNEL_PRIVATE +#include + +struct ip; +struct ifnet; +struct mbuf; + +extern boolean_t in_broadcast(struct in_addr, struct ifnet *); +extern boolean_t in_canforward(struct in_addr); +extern u_int32_t in_netof(struct in_addr); + +extern uint16_t inet_cksum(struct mbuf *, uint32_t, uint32_t, uint32_t); +extern uint16_t in_addword(uint16_t, uint16_t); +extern uint16_t in_pseudo(uint32_t, uint32_t, uint32_t); +extern uint16_t in_pseudo64(uint64_t, uint64_t, uint64_t); +extern uint16_t in_cksum_hdr_opt(const struct ip *); +extern uint16_t ip_cksum_hdr_dir(struct mbuf *, uint32_t, int); +extern uint32_t in_finalize_cksum(struct mbuf *, uint32_t, uint32_t); +extern uint16_t b_sum16(const void *buf, int len); + +#define in_cksum(_m, _l) \ + inet_cksum(_m, 0, 0, _l) +#define ip_cksum_hdr_in(_m, _l) \ + ip_cksum_hdr_dir(_m, _l, 0) +#define ip_cksum_hdr_out(_m, _l) \ + ip_cksum_hdr_dir(_m, _l, 1) + +#define in_cksum_hdr(_ip) \ + (~b_sum16(_ip, sizeof (struct ip)) & 0xffff) + +#define in_cksum_offset(_m, _o) \ + ((void) in_finalize_cksum(_m, _o, CSUM_DELAY_IP)) +#define in_delayed_cksum(_m) \ + ((void) in_finalize_cksum(_m, 0, CSUM_DELAY_DATA)) +#define in_delayed_cksum_offset(_m, _o) \ + ((void) in_finalize_cksum(_m, _o, CSUM_DELAY_DATA)) + +#define in_hosteq(s, t) ((s).s_addr == (t).s_addr) +#define in_nullhost(x) ((x).s_addr == INADDR_ANY) +#define in_allhosts(x) ((x).s_addr == htonl(INADDR_ALLHOSTS_GROUP)) + +#define SIN(s) ((struct sockaddr_in *)(void *)s) +#define satosin(sa) SIN(sa) +#define sintosa(sin) ((struct sockaddr *)(void *)(sin)) +#define SINIFSCOPE(s) ((struct sockaddr_inifscope *)(void *)(s)) +#endif /* BSD_KERNEL_PRIVATE */ + +#ifdef KERNEL_PRIVATE +/* exported for ApplicationFirewall */ +extern int in_localaddr(struct in_addr); +extern int inaddr_local(struct in_addr); +#endif /* KERNEL_PRIVATE */ + +#define MAX_IPv4_STR_LEN 16 +#define MAX_IPv6_STR_LEN 64 + +extern int inet_aton(const char *, struct in_addr *); /* in libkern */ +extern char *inet_ntoa(struct in_addr); /* in libkern */ +extern char *inet_ntoa_r(struct in_addr ina, char *buf, + size_t buflen); /* in libkern */ +extern const char *inet_ntop(int, const void *, char *, socklen_t); /* in libkern*/ +extern int inet_pton(int af, const char *, void *); /* in libkern */ #endif /* KERNEL */ +#ifndef KERNEL +#if !defined(_POSIX_C_SOURCE) || defined(_DARWIN_C_SOURCE) +__BEGIN_DECLS +int bindresvport(int, struct sockaddr_in *); +struct sockaddr; +int bindresvport_sa(int, struct sockaddr *); +__END_DECLS #endif +#endif /* !KERNEL */ +#endif /* _NETINET_IN_H_ */