网络协议与编号
首先我们看下常用的网络协议编号对应的协议(rfc可以说就是对应的osi七层模型)
rfc标准通常由 RFC 发布，但不是所有的 RFC 都被最终指定为标准。RFC 是由个人编写的，这些人自愿编写某一新协议或规范的提议草案，
并提交给“Internet 工程任务组 (IETE)”和其他工作组。提交的草案先由技术专家、任务组或 RFC 的编辑进行审阅，然后给出一个评估状态。
如果草案通过初审阶段，则传播到更大的 Internet 社会团体，进一步评论和审阅一段时间，然后指派一个 RFC 编号。这个 RFC 编号保持不变。
所以通过编号也可以对应找到协议．
https://www.ietf.org/rfc/rfc3548.txt 协议的demo规范
网络协议编号 协议简写 协议名称
1 ICMP Internet Control Message [RFC792] 2 IGMP Internet Group Management [RFC1112] 3 GGP Gateway-to-Gateway [RFC823] 4 IP IP in IP (encapsulation) [RFC2003] 5 ST Stream [RFC1190,RFC1819] 6 TCP Transmission Control [RFC793] 7 CBT CBT [Ballardie] 8 EGP Exterior Gateway Protocol [RFC888,DLM1] 9 IGP any private interior gateway [IANA] (used by Cisco for their IGRP) 10 BBN-RCC-MON BBN RCC Monitoring [SGC] 11 NVP-II Network Voice Protocol [RFC741,SC3] 12 PUP PUP [PUP,XEROX] 13 ARGUS ARGUS [RWS4] 14 EMCON EMCON [BN7] 15 XNET Cross Net Debugger [IEN158,JFH2] 16 CHAOS Chaos [NC3] 17 UDP User Datagram [RFC768,JBP] 18 MUX Multiplexing [IEN90,JBP] 19 DCN-MEAS DCN Measurement Subsystems [DLM1] 20 HMP Host Monitoring [RFC869,RH6] 21 PRM Packet Radio Measurement [ZSU] 22 XNS-IDP XEROX NS IDP [ETHERNET,XEROX] 23 TRUNK-1 Trunk-1 [BWB6] 24 TRUNK-2 Trunk-2 [BWB6] 25 LEAF-1 Leaf-1 [BWB6] 26 LEAF-2 Leaf-2 [BWB6] 27 RDP Reliable Data Protocol [RFC908,RH6] 28 IRTP Internet Reliable Transaction [RFC938,TXM] 29 ISO-TP4 ISO Transport Protocol Class 4 [RFC905,RC77] 30 NETBLT Bulk Data Transfer Protocol [RFC969,DDC1] 31 MFE-NSP MFE Network Services Protocol [MFENET,BCH2] 32 MERIT-INP MERIT Internodal Protocol [HWB] 33 DCCP Datagram Congestion Control Protocol [RFC-ietf-dccp-spec-11.txt] 34 3PC Third Party Connect Protocol [SAF3] 35 IDPR Inter-Domain Policy Routing Protocol [MXS1] 36 XTP XTP [GXC] 37 DDP Datagram Delivery Protocol [WXC] 38 IDPR-CMTP IDPR Control Message Transport Proto [MXS1] 39 TP++ TP++ Transport Protocol [DXF] 40 IL IL Transport Protocol [Presotto] 41 IPv6 Ipv6 [Deering] 42 SDRP Source Demand Routing Protocol [DXE1] 43 IPv6-Route Routing Header for IPv6 [Deering] 44 IPv6-Frag Fragment Header for IPv6 [Deering] 45 IDRP Inter-Domain Routing Protocol [Sue Hares] 46 RSVP Reservation Protocol [Bob Braden] 47 GRE General Routing Encapsulation [Tony Li] 48 MHRP Mobile Host Routing Protocol[David Johnson] 49 BNA BNA [Gary Salamon] 50 ESP Encap Security Payload [RFC2406] 51 AH Authentication Header [RFC2402] 52 I-NLSP Integrated Net Layer Security TUBA [GLENN] 53 SWIPE IP with Encryption [JI6] 54 NARP NBMA Address Resolution Protocol [RFC1735] 55 MOBILE IP Mobility [Perkins] 56 TLSP Transport Layer Security Protocol [Oberg] using Kryptonet key management 57 SKIP SKIP [Markson] 58 IPv6-ICMP ICMP for IPv6 [RFC1883] 59 IPv6-NoNxt No Next Header for IPv6 [RFC1883] 60 IPv6-Opts Destination Options for IPv6 [RFC1883] 61 any host internal protocol [IANA] 62 CFTP CFTP [CFTP,HCF2] 63 any local network [IANA] 64 SAT-EXPAK SATNET and Backroom EXPAK [SHB] 65 KRYPTOLAN Kryptolan [PXL1] 66 RVD MIT Remote Virtual Disk Protocol [MBG] 67 IPPC Internet Pluribus Packet Core [SHB] 68 any distributed file system [IANA] 69 SAT-MON SATNET Monitoring [SHB] 70 VISA VISA Protocol [GXT1] 71 IPCV Internet Packet Core Utility [SHB] 72 CPNX Computer Protocol Network Executive [DXM2] 73 CPHB Computer Protocol Heart Beat [DXM2] 74 WSN Wang Span Network [VXD] 75 PVP Packet Video Protocol [SC3] 76 BR-SAT-MON Backroom SATNET Monitoring [SHB] 77 SUN-ND SUN ND PROTOCOL-Temporary [WM3] 78 WB-MON WIDEBAND Monitoring [SHB] 79 WB-EXPAK WIDEBAND EXPAK [SHB] 80 ISO-IP ISO Internet Protocol [MTR] 81 VMTP VMTP [DRC3] 82 SECURE-VMTP SECURE-VMTP [DRC3] 83 VINES VINES [BXH] 84 TTP TTP [JXS] 85 NSFNET-IGP NSFNET-IGP [HWB] 86 DGP Dissimilar Gateway Protocol [DGP,ML109] 87 TCF TCF [GAL5] 88 EIGRP EIGRP [CISCO,GXS] 89 OSPF OSPFIGP [RFC1583,JTM4] 90 Sprite-RPC Sprite RPC Protocol [SPRITE,BXW] 91 LARP Locus Address Resolution Protocol [BXH] 92 MTP Multicast Transport Protocol [SXA] 93 AX.25 AX.25 Frames [BK29] 94 IPIP IP-within-IP Encapsulation Protocol [JI6] 95 MICP Mobile Internetworking Control Pro. [JI6] 96 SCC-SP Semaphore Communications Sec. Pro. [HXH] 97 ETHERIP Ethernet-within-IP Encapsulation [RFC3378] 98 ENCAP Encapsulation Header [RFC1241,RXB3] 99 any private encryption scheme [IANA] 100 GMTP GMTP [RXB5] 101 IFMP Ipsilon Flow Management Protocol [Hinden] 102 PNNI PNNI over IP [Callon] 103 PIM Protocol Independent Multicast [Farinacci] 104 ARIS ARIS [Feldman] 105 SCPS SCPS [Durst] 106 QNX QNX [Hunter] 107 A/N Active Networks [Braden] 108 IPComp IP Payload Compression Protocol [RFC2393] 109 SNP Sitara Networks Protocol [Sridhar] 110 Compaq-Peer Compaq Peer Protocol [Volpe] 111 IPX-in-IP IPX in IP [Lee] 112 VRRP Virtual Router Redundancy Protocol [RFC3768] 113 PGM PGM Reliable Transport Protocol [Speakman] 114 any 0-hop protocol [IANA] 115 L2TP Layer Two Tunneling Protocol [Aboba] 116 DDX D-II Data Exchange (DDX) [Worley] 117 IATP Interactive Agent Transfer Protocol [Murphy] 118 STP Schedule Transfer Protocol [JMP] 119 SRP SpectraLink Radio Protocol [Hamilton] 120 UTI UTI [Lothberg] 121 SMP Simple Message Protocol [Ekblad] 122 SM SM [Crowcroft] 123 PTP Performance Transparency Protocol [Welzl] 124 ISIS over IPv4 [Przygienda] 125 FIRE [Partridge] 126 CRTP Combat Radio Transport Protocol [Sautter] 127 CRUDP Combat Radio User Datagram [Sautter] 128 SSCOPMCE [Waber] 129 IPLT [Hollbach] 130 SPS Secure Packet Shield [McIntosh] 131 PIPE Private IP Encapsulation within IP [Petri] 132 SCTP Stream Control Transmission Protocol [Stewart] 133 FC Fibre Channel [Rajagopal] 134 RSVP-E2E-IGNORE [RFC3175] 135 Mobility Header [RFC3775] 136 UDPLite [RFC3828] 137 MPLS-in-IP [RFC4023] 138-252 Unassigned [IANA] 253 Use for experimentation and testing [RFC3692] 254 Use for experimentation and testing [RFC3692] 255 Reserved [IANA]
RFC 编号
|
768 |
用户数据报协议 (UDP) |
|
783 |
日常文件传输协议 (TFTP) |
|
791 |
Internet 协议 (IP) |
|
792 |
Internet 控制消息协议 (ICMP) |
|
793 |
传输控制协议 (TCP) |
|
816 |
故障隔离和恢复 |
|
826 |
地址解析协议 (ARP) |
|
854 |
Telnet 协议 (TELNET) |
|
862 |
回应协议 (ECHO) |
|
863 |
放弃协议 (DISCARD) |
|
864 |
字符生成器协议 (CHARGEN) |
|
865 |
当日报价协议 (QUOTE) |
|
867 |
白天协议 (DAYTIME) |
|
894 |
基于 Ethernet 的 IP |
|
919 |
广播 Internet 数据报 |
|
922 |
在现有子网中广播 Internet 数据报 |
|
950 |
Internet 标准子网化过程 |
|
959 |
文件传输协议 (FTP) |
|
1001 |
TCP/UDP 传输上的 NetBIOS 服务的协议标准：概念和方法 |
|
1002 |
TCP/UDP 传输上的 NetBIOS 服务的协议标准：详细规范 |
|
1009 |
Internet 网关的要求 |
|
1034 |
域名 - 概念和工具 |
|
1035 |
域名 - 实现和规范 |
|
1042 |
基于令牌环的 IP |
|
1055 |
通过串行线路的非标准 IP 数据报传输：SLIP |
|
1065 |
有关基于 TCP/IP 的 Internet 的管理信息的结构和标识 |
|
1112 |
Internet 组管理协议 (IGMP) |
|
1122 |
Internet 主机 - 通讯层的要求 |
|
1123 |
Internet 主机 - 应用和支持的要求 |
|
1144 |
对于低速串行链接压缩 TCP/IP 头 |
|
1157 |
简单网络管理协议 (SNMP) |
|
1179 |
行式打印机监控程序协议 |
|
1188 |
FDDI 上的 IP |
|
1191 |
路径 MTU 发现 |
|
1201 |
基于 ARCNET 的 IP |
|
1256 |
ICMP 路由器发现消息 |
|
1323 |
高性能 TCP 扩展件 |
|
1332 |
PPP IP 控制协议 (IPCP) |
|
1518 |
带有 CIDR 的 IP 地址分配的体系结构 |
|
1519 |
无类的域间路由 (CIDR)：地址分配和集合策略 |
|
1534 |
DHCP 和 BOOTP 之间的交互 |
|
1542 |
Bootstrap 协议的说明和扩展 |
|
1552 |
PPP 网际数据包交换控制协议 (IPXCP) |
|
1661 |
点对点协议 (PPP) |
|
1662 |
HDLC 帧中的 PPP |
|
1748 |
使用 SMIv2 的 IEEE 802.5 MIB |
|
1749 |
使用 SMIv2 的 IEEE 802.5 站源路由 MIB |
|
1812 |
IP 版本 4 的要求路由器 |
|
1828 |
使用 Keyed MD5 的 IP 身份验证 |
|
1829 |
ESP DES-CBC 变换 |
|
1851 |
ESP 三重 DES-CBC 变换 |
|
1852 |
使用 Keyed SHA 的 IP 身份验证 |
|
1878 |
IPv4 的可变长度子网表 |
|
1886 |
支持 IP 版本 6 的 DNS 扩展名 |
|
1994 |
PPP 质询握手身份验证协议 (CHAP) |
|
1995 |
DNS 中的增量区域传输 |
|
1996 |
用来提示 DNS 通知区域更改的机制 |
|
2018 |
TCP 选择的确认选项 |
|
2085 |
使用重播防止的 HMAC-MD5 IP 身份验证 |
|
2104 |
HMAC：邮件身份验证的键控哈希计算 |
|
2131 |
动态主机配置协议 (DHCP) |
|
2136 |
域名系统中的动态更新 (DNS UPDATE) |
|
2181 |
对 DNS 规范的说明 |
|
2236 |
网际分组管理协议 (IGMP) 版本 2 |
|
2308 |
DNS 查询的反向缓存 (DNS NCACHE) |
|
2401 |
Internet 协议的“安全结构” |
|
2402 |
IP 验证标头 |
|
2406 |
IP 封装安全措施负载量 (ESP) |
|
2581 |
TCP 拥塞控制 |
[root@ht8 net]# sz /usr/include/netinet/in.h
这个是linux系统对应的网络协议与编号(协议ID号)头文件定义
/* Copyright (C) 1991-2001, 2003, 2004, 2006, 2007, 2008, 2011, 2012 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, see <http://www.gnu.org/licenses/>. */ #ifndef _NETINET_IN_H #define _NETINET_IN_H 1 #include <features.h> #include <stdint.h> #include <sys/socket.h> #include <bits/types.h> __BEGIN_DECLS /* Internet address. */ typedef uint32_t in_addr_t; struct in_addr { in_addr_t s_addr; }; /* Get system-specific definitions. */ #include <bits/in.h> /* Standard well-defined IP protocols. */ enum { IPPROTO_IP = 0, /* Dummy protocol for TCP. */ #define IPPROTO_IP IPPROTO_IP IPPROTO_ICMP = 1, /* Internet Control Message Protocol. */ #define IPPROTO_ICMP IPPROTO_ICMP IPPROTO_IGMP = 2, /* Internet Group Management Protocol. */ #define IPPROTO_IGMP IPPROTO_IGMP IPPROTO_IPIP = 4, /* IPIP tunnels (older KA9Q tunnels use 94). */ #define IPPROTO_IPIP IPPROTO_IPIP IPPROTO_TCP = 6, /* Transmission Control Protocol. */ #define IPPROTO_TCP IPPROTO_TCP IPPROTO_EGP = 8, /* Exterior Gateway Protocol. */ #define IPPROTO_EGP IPPROTO_EGP IPPROTO_PUP = 12, /* PUP protocol. */ #define IPPROTO_PUP IPPROTO_PUP IPPROTO_UDP = 17, /* User Datagram Protocol. */ #define IPPROTO_UDP IPPROTO_UDP IPPROTO_IDP = 22, /* XNS IDP protocol. */ #define IPPROTO_IDP IPPROTO_IDP IPPROTO_TP = 29, /* SO Transport Protocol Class 4. */ #define IPPROTO_TP IPPROTO_TP IPPROTO_DCCP = 33, /* Datagram Congestion Control Protocol. */ #define IPPROTO_DCCP IPPROTO_DCCP IPPROTO_IPV6 = 41, /* IPv6 header. */ #define IPPROTO_IPV6 IPPROTO_IPV6 IPPROTO_RSVP = 46, /* Reservation Protocol. */ #define IPPROTO_RSVP IPPROTO_RSVP IPPROTO_GRE = 47, /* General Routing Encapsulation. */ #define IPPROTO_GRE IPPROTO_GRE IPPROTO_ESP = 50, /* encapsulating security payload. */ #define IPPROTO_ESP IPPROTO_ESP IPPROTO_AH = 51, /* authentication header. */ #define IPPROTO_AH IPPROTO_AH IPPROTO_MTP = 92, /* Multicast Transport Protocol. */ #define IPPROTO_MTP IPPROTO_MTP IPPROTO_BEETPH = 94, /* IP option pseudo header for BEET. */ #define IPPROTO_BEETPH IPPROTO_BEETPH IPPROTO_ENCAP = 98, /* Encapsulation Header. */ #define IPPROTO_ENCAP IPPROTO_ENCAP IPPROTO_PIM = 103, /* Protocol Independent Multicast. */ #define IPPROTO_PIM IPPROTO_PIM IPPROTO_COMP = 108, /* Compression Header Protocol. */ #define IPPROTO_COMP IPPROTO_COMP IPPROTO_SCTP = 132, /* Stream Control Transmission Protocol. */ #define IPPROTO_SCTP IPPROTO_SCTP IPPROTO_UDPLITE = 136, /* UDP-Lite protocol. */ #define IPPROTO_UDPLITE IPPROTO_UDPLITE IPPROTO_MPLS = 137, /* MPLS in IP. */ #define IPPROTO_MPLS IPPROTO_MPLS IPPROTO_RAW = 255, /* Raw IP packets. */ #define IPPROTO_RAW IPPROTO_RAW IPPROTO_MAX }; /* If __USE_KERNEL_IPV6_DEFS is 1 then the user has included the kernel network headers first and we should use those ABI-identical definitions instead of our own, otherwise 0. */ #if !__USE_KERNEL_IPV6_DEFS enum { IPPROTO_HOPOPTS = 0, /* IPv6 Hop-by-Hop options. */ #define IPPROTO_HOPOPTS IPPROTO_HOPOPTS IPPROTO_ROUTING = 43, /* IPv6 routing header. */ #define IPPROTO_ROUTING IPPROTO_ROUTING IPPROTO_FRAGMENT = 44, /* IPv6 fragmentation header. */ #define IPPROTO_FRAGMENT IPPROTO_FRAGMENT IPPROTO_ICMPV6 = 58, /* ICMPv6. */ #define IPPROTO_ICMPV6 IPPROTO_ICMPV6 IPPROTO_NONE = 59, /* IPv6 no next header. */ #define IPPROTO_NONE IPPROTO_NONE IPPROTO_DSTOPTS = 60, /* IPv6 destination options. */ #define IPPROTO_DSTOPTS IPPROTO_DSTOPTS IPPROTO_MH = 135 /* IPv6 mobility header. */ #define IPPROTO_MH IPPROTO_MH }; #endif /* !__USE_KERNEL_IPV6_DEFS */ /* Type to represent a port. */ typedef uint16_t in_port_t; /* Standard well-known ports. 标准的已知端口 */ enum { IPPORT_ECHO = 7, /* Echo service. */ IPPORT_DISCARD = 9, /* Discard transmissions service. */ IPPORT_SYSTAT = 11, /* System status service. */ IPPORT_DAYTIME = 13, /* Time of day service. */ IPPORT_NETSTAT = 15, /* Network status service. */ IPPORT_FTP = 21, /* File Transfer Protocol. */ IPPORT_TELNET = 23, /* Telnet protocol. */ IPPORT_SMTP = 25, /* Simple Mail Transfer Protocol. */ IPPORT_TIMESERVER = 37, /* Timeserver service. */ IPPORT_NAMESERVER = 42, /* Domain Name Service. */ IPPORT_WHOIS = 43, /* Internet Whois service. */ IPPORT_MTP = 57, IPPORT_TFTP = 69, /* Trivial File Transfer Protocol. */ IPPORT_RJE = 77, IPPORT_FINGER = 79, /* Finger service. */ IPPORT_TTYLINK = 87, IPPORT_SUPDUP = 95, /* SUPDUP protocol. */ IPPORT_EXECSERVER = 512, /* execd service. */ IPPORT_LOGINSERVER = 513, /* rlogind service. */ IPPORT_CMDSERVER = 514, IPPORT_EFSSERVER = 520, /* UDP ports. */ IPPORT_BIFFUDP = 512, IPPORT_WHOSERVER = 513, IPPORT_ROUTESERVER = 520, /* Ports less than this value are reserved for privileged processes. */ IPPORT_RESERVED = 1024, /* Ports greater this value are reserved for (non-privileged) servers. */ IPPORT_USERRESERVED = 5000 }; /* Definitions of the bits in an Internet address integer. On subnets, host and network parts are found according to the subnet mask, not these masks. */ #define IN_CLASSA(a) ((((in_addr_t)(a)) & 0x80000000) == 0) #define IN_CLASSA_NET 0xff000000 #define IN_CLASSA_NSHIFT 24 #define IN_CLASSA_HOST (0xffffffff & ~IN_CLASSA_NET) #define IN_CLASSA_MAX 128 #define IN_CLASSB(a) ((((in_addr_t)(a)) & 0xc0000000) == 0x80000000) #define IN_CLASSB_NET 0xffff0000 #define IN_CLASSB_NSHIFT 16 #define IN_CLASSB_HOST (0xffffffff & ~IN_CLASSB_NET) #define IN_CLASSB_MAX 65536 #define IN_CLASSC(a) ((((in_addr_t)(a)) & 0xe0000000) == 0xc0000000) #define IN_CLASSC_NET 0xffffff00 #define IN_CLASSC_NSHIFT 8 #define IN_CLASSC_HOST (0xffffffff & ~IN_CLASSC_NET) #define IN_CLASSD(a) ((((in_addr_t)(a)) & 0xf0000000) == 0xe0000000) #define IN_MULTICAST(a) IN_CLASSD(a) #define IN_EXPERIMENTAL(a) ((((in_addr_t)(a)) & 0xe0000000) == 0xe0000000) #define IN_BADCLASS(a) ((((in_addr_t)(a)) & 0xf0000000) == 0xf0000000) /* Address to accept any incoming messages. */ #define INADDR_ANY ((in_addr_t) 0x00000000) /* Address to send to all hosts. */ #define INADDR_BROADCAST ((in_addr_t) 0xffffffff) /* Address indicating an error return. */ #define INADDR_NONE ((in_addr_t) 0xffffffff) /* Network number for local host loopback. */ #define IN_LOOPBACKNET 127 /* Address to loopback in software to local host. */ #ifndef INADDR_LOOPBACK # define INADDR_LOOPBACK ((in_addr_t) 0x7f000001) /* Inet 127.0.0.1. */ #endif /* Defines for Multicast INADDR. */ #define INADDR_UNSPEC_GROUP ((in_addr_t) 0xe0000000) /* 224.0.0.0 */ #define INADDR_ALLHOSTS_GROUP ((in_addr_t) 0xe0000001) /* 224.0.0.1 */ #define INADDR_ALLRTRS_GROUP ((in_addr_t) 0xe0000002) /* 224.0.0.2 */ #define INADDR_MAX_LOCAL_GROUP ((in_addr_t) 0xe00000ff) /* 224.0.0.255 */ #if !__USE_KERNEL_IPV6_DEFS /* IPv6 address */ struct in6_addr { union { uint8_t __u6_addr8[16]; #if defined __USE_MISC || defined __USE_GNU uint16_t __u6_addr16[8]; uint32_t __u6_addr32[4]; #endif } __in6_u; #define s6_addr __in6_u.__u6_addr8 #if defined __USE_MISC || defined __USE_GNU # define s6_addr16 __in6_u.__u6_addr16 # define s6_addr32 __in6_u.__u6_addr32 #endif }; #endif /* !__USE_KERNEL_IPV6_DEFS */ extern const struct in6_addr in6addr_any; /* :: */ extern const struct in6_addr in6addr_loopback; /* ::1 */ #define IN6ADDR_ANY_INIT { { { 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0 } } } #define IN6ADDR_LOOPBACK_INIT { { { 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,1 } } } #define INET_ADDRSTRLEN 16 #define INET6_ADDRSTRLEN 46 /* Structure describing an Internet socket address. */ struct sockaddr_in { __SOCKADDR_COMMON (sin_); in_port_t sin_port; /* Port number. */ struct in_addr sin_addr; /* Internet address. */ /* Pad to size of `struct sockaddr'. */ unsigned char sin_zero[sizeof (struct sockaddr) - __SOCKADDR_COMMON_SIZE - sizeof (in_port_t) - sizeof (struct in_addr)]; }; #if !__USE_KERNEL_IPV6_DEFS /* Ditto, for IPv6. */ struct sockaddr_in6 { __SOCKADDR_COMMON (sin6_); in_port_t sin6_port; /* Transport layer port # */ uint32_t sin6_flowinfo; /* IPv6 flow information */ struct in6_addr sin6_addr; /* IPv6 address */ uint32_t sin6_scope_id; /* IPv6 scope-id */ }; #endif /* !__USE_KERNEL_IPV6_DEFS */ #if defined __USE_MISC || defined __USE_GNU /* IPv4 multicast request. */ struct ip_mreq { /* IP multicast address of group. */ struct in_addr imr_multiaddr; /* Local IP address of interface. */ struct in_addr imr_interface; }; struct ip_mreq_source { /* IP multicast address of group. */ struct in_addr imr_multiaddr; /* IP address of source. */ struct in_addr imr_interface; /* IP address of interface. */ struct in_addr imr_sourceaddr; }; #endif #if !__USE_KERNEL_IPV6_DEFS /* Likewise, for IPv6. */ struct ipv6_mreq { /* IPv6 multicast address of group */ struct in6_addr ipv6mr_multiaddr; /* local interface */ unsigned int ipv6mr_interface; }; #endif /* !__USE_KERNEL_IPV6_DEFS */ #if defined __USE_MISC || defined __USE_GNU /* Multicast group request. */ struct group_req { /* Interface index. */ uint32_t gr_interface; /* Group address. */ struct sockaddr_storage gr_group; }; struct group_source_req { /* Interface index. */ uint32_t gsr_interface; /* Group address. */ struct sockaddr_storage gsr_group; /* Source address. */ struct sockaddr_storage gsr_source; }; /* Full-state filter operations. */ struct ip_msfilter { /* IP multicast address of group. */ struct in_addr imsf_multiaddr; /* Local IP address of interface. */ struct in_addr imsf_interface; /* Filter mode. */ uint32_t imsf_fmode; /* Number of source addresses. */ uint32_t imsf_numsrc; /* Source addresses. */ struct in_addr imsf_slist[1]; }; #define IP_MSFILTER_SIZE(numsrc) (sizeof (struct ip_msfilter) \ - sizeof (struct in_addr) \ + (numsrc) * sizeof (struct in_addr)) struct group_filter { /* Interface index. */ uint32_t gf_interface; /* Group address. */ struct sockaddr_storage gf_group; /* Filter mode. */ uint32_t gf_fmode; /* Number of source addresses. */ uint32_t gf_numsrc; /* Source addresses. */ struct sockaddr_storage gf_slist[1]; }; #define GROUP_FILTER_SIZE(numsrc) (sizeof (struct group_filter) \ - sizeof (struct sockaddr_storage) \ + ((numsrc) \ * sizeof (struct sockaddr_storage))) #endif /* Functions to convert between host and network byte order. Please note that these functions normally take `unsigned long int' or `unsigned short int' values as arguments and also return them. But this was a short-sighted decision since on different systems the types may have different representations but the values are always the same. */ extern uint32_t ntohl (uint32_t __netlong) __THROW __attribute__ ((__const__)); extern uint16_t ntohs (uint16_t __netshort) __THROW __attribute__ ((__const__)); extern uint32_t htonl (uint32_t __hostlong) __THROW __attribute__ ((__const__)); extern uint16_t htons (uint16_t __hostshort) __THROW __attribute__ ((__const__)); #include <endian.h> /* Get machine dependent optimized versions of byte swapping functions. */ #include <bits/byteswap.h> #ifdef __OPTIMIZE__ /* We can optimize calls to the conversion functions. Either nothing has to be done or we are using directly the byte-swapping functions which often can be inlined. */ # if __BYTE_ORDER == __BIG_ENDIAN /* The host byte order is the same as network byte order, so these functions are all just identity. */ # define ntohl(x) (x) # define ntohs(x) (x) # define htonl(x) (x) # define htons(x) (x) # else # if __BYTE_ORDER == __LITTLE_ENDIAN # define ntohl(x) __bswap_32 (x) # define ntohs(x) __bswap_16 (x) # define htonl(x) __bswap_32 (x) # define htons(x) __bswap_16 (x) # endif # endif #endif #ifdef __GNUC__ # define IN6_IS_ADDR_UNSPECIFIED(a) \ (__extension__ \ ({ const struct in6_addr *__a = (const struct in6_addr *) (a); \ __a->s6_addr32[0] == 0 \ && __a->s6_addr32[1] == 0 \ && __a->s6_addr32[2] == 0 \ && __a->s6_addr32[3] == 0; })) # define IN6_IS_ADDR_LOOPBACK(a) \ (__extension__ \ ({ const struct in6_addr *__a = (const struct in6_addr *) (a); \ __a->s6_addr32[0] == 0 \ && __a->s6_addr32[1] == 0 \ && __a->s6_addr32[2] == 0 \ && __a->s6_addr32[3] == htonl (1); })) # define IN6_IS_ADDR_LINKLOCAL(a) \ (__extension__ \ ({ const struct in6_addr *__a = (const struct in6_addr *) (a); \ (__a->s6_addr32[0] & htonl (0xffc00000)) == htonl (0xfe800000); })) # define IN6_IS_ADDR_SITELOCAL(a) \ (__extension__ \ ({ const struct in6_addr *__a = (const struct in6_addr *) (a); \ (__a->s6_addr32[0] & htonl (0xffc00000)) == htonl (0xfec00000); })) # define IN6_IS_ADDR_V4MAPPED(a) \ (__extension__ \ ({ const struct in6_addr *__a = (const struct in6_addr *) (a); \ __a->s6_addr32[0] == 0 \ && __a->s6_addr32[1] == 0 \ && __a->s6_addr32[2] == htonl (0xffff); })) # define IN6_IS_ADDR_V4COMPAT(a) \ (__extension__ \ ({ const struct in6_addr *__a = (const struct in6_addr *) (a); \ __a->s6_addr32[0] == 0 \ && __a->s6_addr32[1] == 0 \ && __a->s6_addr32[2] == 0 \ && ntohl (__a->s6_addr32[3]) > 1; })) # define IN6_ARE_ADDR_EQUAL(a,b) \ (__extension__ \ ({ const struct in6_addr *__a = (const struct in6_addr *) (a); \ const struct in6_addr *__b = (const struct in6_addr *) (b); \ __a->s6_addr32[0] == __b->s6_addr32[0] \ && __a->s6_addr32[1] == __b->s6_addr32[1] \ && __a->s6_addr32[2] == __b->s6_addr32[2] \ && __a->s6_addr32[3] == __b->s6_addr32[3]; })) #else # define IN6_IS_ADDR_UNSPECIFIED(a) \ (((const uint32_t *) (a))[0] == 0 \ && ((const uint32_t *) (a))[1] == 0 \ && ((const uint32_t *) (a))[2] == 0 \ && ((const uint32_t *) (a))[3] == 0) # define IN6_IS_ADDR_LOOPBACK(a) \ (((const uint32_t *) (a))[0] == 0 \ && ((const uint32_t *) (a))[1] == 0 \ && ((const uint32_t *) (a))[2] == 0 \ && ((const uint32_t *) (a))[3] == htonl (1)) # define IN6_IS_ADDR_LINKLOCAL(a) \ ((((const uint32_t *) (a))[0] & htonl (0xffc00000)) \ == htonl (0xfe800000)) # define IN6_IS_ADDR_SITELOCAL(a) \ ((((const uint32_t *) (a))[0] & htonl (0xffc00000)) \ == htonl (0xfec00000)) # define IN6_IS_ADDR_V4MAPPED(a) \ ((((const uint32_t *) (a))[0] == 0) \ && (((const uint32_t *) (a))[1] == 0) \ && (((const uint32_t *) (a))[2] == htonl (0xffff))) # define IN6_IS_ADDR_V4COMPAT(a) \ ((((const uint32_t *) (a))[0] == 0) \ && (((const uint32_t *) (a))[1] == 0) \ && (((const uint32_t *) (a))[2] == 0) \ && (ntohl (((const uint32_t *) (a))[3]) > 1)) # define IN6_ARE_ADDR_EQUAL(a,b) \ ((((const uint32_t *) (a))[0] == ((const uint32_t *) (b))[0]) \ && (((const uint32_t *) (a))[1] == ((const uint32_t *) (b))[1]) \ && (((const uint32_t *) (a))[2] == ((const uint32_t *) (b))[2]) \ && (((const uint32_t *) (a))[3] == ((const uint32_t *) (b))[3])) #endif #define IN6_IS_ADDR_MULTICAST(a) (((const uint8_t *) (a))[0] == 0xff) #if defined __USE_MISC || defined __USE_GNU /* Bind socket to a privileged IP port. */ extern int bindresvport (int __sockfd, struct sockaddr_in *__sock_in) __THROW; /* The IPv6 version of this function. */ extern int bindresvport6 (int __sockfd, struct sockaddr_in6 *__sock_in) __THROW; #endif #define IN6_IS_ADDR_MC_NODELOCAL(a) \ (IN6_IS_ADDR_MULTICAST(a) \ && ((((const uint8_t *) (a))[1] & 0xf) == 0x1)) #define IN6_IS_ADDR_MC_LINKLOCAL(a) \ (IN6_IS_ADDR_MULTICAST(a) \ && ((((const uint8_t *) (a))[1] & 0xf) == 0x2)) #define IN6_IS_ADDR_MC_SITELOCAL(a) \ (IN6_IS_ADDR_MULTICAST(a) \ && ((((const uint8_t *) (a))[1] & 0xf) == 0x5)) #define IN6_IS_ADDR_MC_ORGLOCAL(a) \ (IN6_IS_ADDR_MULTICAST(a) \ && ((((const uint8_t *) (a))[1] & 0xf) == 0x8)) #define IN6_IS_ADDR_MC_GLOBAL(a) \ (IN6_IS_ADDR_MULTICAST(a) \ && ((((const uint8_t *) (a))[1] & 0xf) == 0xe)) #ifdef __USE_GNU struct cmsghdr; /* Forward declaration. */ #if !__USE_KERNEL_IPV6_DEFS /* IPv6 packet information. */ struct in6_pktinfo { struct in6_addr ipi6_addr; /* src/dst IPv6 address */ unsigned int ipi6_ifindex; /* send/recv interface index */ }; /* IPv6 MTU information. */ struct ip6_mtuinfo { struct sockaddr_in6 ip6m_addr; /* dst address including zone ID */ uint32_t ip6m_mtu; /* path MTU in host byte order */ }; #endif /* !__USE_KERNEL_IPV6_DEFS */ /* Obsolete hop-by-hop and Destination Options Processing (RFC 2292). */ extern int inet6_option_space (int __nbytes) __THROW __attribute_deprecated__; extern int inet6_option_init (void *__bp, struct cmsghdr **__cmsgp, int __type) __THROW __attribute_deprecated__; extern int inet6_option_append (struct cmsghdr *__cmsg, const uint8_t *__typep, int __multx, int __plusy) __THROW __attribute_deprecated__; extern uint8_t *inet6_option_alloc (struct cmsghdr *__cmsg, int __datalen, int __multx, int __plusy) __THROW __attribute_deprecated__; extern int inet6_option_next (const struct cmsghdr *__cmsg, uint8_t **__tptrp) __THROW __attribute_deprecated__; extern int inet6_option_find (const struct cmsghdr *__cmsg, uint8_t **__tptrp, int __type) __THROW __attribute_deprecated__; /* Hop-by-Hop and Destination Options Processing (RFC 3542). */ extern int inet6_opt_init (void *__extbuf, socklen_t __extlen) __THROW; extern int inet6_opt_append (void *__extbuf, socklen_t __extlen, int __offset, uint8_t __type, socklen_t __len, uint8_t __align, void **__databufp) __THROW; extern int inet6_opt_finish (void *__extbuf, socklen_t __extlen, int __offset) __THROW; extern int inet6_opt_set_val (void *__databuf, int __offset, void *__val, socklen_t __vallen) __THROW; extern int inet6_opt_next (void *__extbuf, socklen_t __extlen, int __offset, uint8_t *__typep, socklen_t *__lenp, void **__databufp) __THROW; extern int inet6_opt_find (void *__extbuf, socklen_t __extlen, int __offset, uint8_t __type, socklen_t *__lenp, void **__databufp) __THROW; extern int inet6_opt_get_val (void *__databuf, int __offset, void *__val, socklen_t __vallen) __THROW; /* Routing Header Option (RFC 3542). */ extern socklen_t inet6_rth_space (int __type, int __segments) __THROW; extern void *inet6_rth_init (void *__bp, socklen_t __bp_len, int __type, int __segments) __THROW; extern int inet6_rth_add (void *__bp, const struct in6_addr *__addr) __THROW; extern int inet6_rth_reverse (const void *__in, void *__out) __THROW; extern int inet6_rth_segments (const void *__bp) __THROW; extern struct in6_addr *inet6_rth_getaddr (const void *__bp, int __index) __THROW; /* Multicast source filter support. */ /* Get IPv4 source filter. */ extern int getipv4sourcefilter (int __s, struct in_addr __interface_addr, struct in_addr __group, uint32_t *__fmode, uint32_t *__numsrc, struct in_addr *__slist) __THROW; /* Set IPv4 source filter. */ extern int setipv4sourcefilter (int __s, struct in_addr __interface_addr, struct in_addr __group, uint32_t __fmode, uint32_t __numsrc, const struct in_addr *__slist) __THROW; /* Get source filter. */ extern int getsourcefilter (int __s, uint32_t __interface_addr, const struct sockaddr *__group, socklen_t __grouplen, uint32_t *__fmode, uint32_t *__numsrc, struct sockaddr_storage *__slist) __THROW; /* Set source filter. */ extern int setsourcefilter (int __s, uint32_t __interface_addr, const struct sockaddr *__group, socklen_t __grouplen, uint32_t __fmode, uint32_t __numsrc, const struct sockaddr_storage *__slist) __THROW; #endif /* use GNU */ __END_DECLS #endif /* netinet/in.h */
