net.h@ 11270

Last change on this file since 11270 was 11054, checked in by vboxsync, 17 years ago
iprt/net.h: Added dummy IPX ethertypes.
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File size: 18.8 KB

Line
1	/** @file
2	* IPRT - Network Protocols.
3	*/
4
5	/*
6	* Copyright (C) 2008 Sun Microsystems, Inc.
7	*
8	* This file is part of VirtualBox Open Source Edition (OSE), as
9	* available from http://www.virtualbox.org. This file is free software;
10	* you can redistribute it and/or modify it under the terms of the GNU
11	* General Public License (GPL) as published by the Free Software
12	* Foundation, in version 2 as it comes in the "COPYING" file of the
13	* VirtualBox OSE distribution. VirtualBox OSE is distributed in the
14	* hope that it will be useful, but WITHOUT ANY WARRANTY of any kind.
15	*
16	* The contents of this file may alternatively be used under the terms
17	* of the Common Development and Distribution License Version 1.0
18	* (CDDL) only, as it comes in the "COPYING.CDDL" file of the
19	* VirtualBox OSE distribution, in which case the provisions of the
20	* CDDL are applicable instead of those of the GPL.
21	*
22	* You may elect to license modified versions of this file under the
23	* terms and conditions of either the GPL or the CDDL or both.
24	*
25	* Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa
26	* Clara, CA 95054 USA or visit http://www.sun.com if you need
27	* additional information or have any questions.
28	*/
29
30	#ifndef ___iprt_net_h
31	#define ___iprt_net_h
32
33	#include <iprt/cdefs.h>
34	#include <iprt/types.h>
35	#include <iprt/assert.h>
36
37
38	__BEGIN_DECLS
39
40	/** @defgroup grp_rt_net RTNet - Network Protocols
41	* @ingroup grp_rt
42	* @{
43	*/
44
45	/**
46	* IPv4 address.
47	*/
48	typedef RTUINT32U RTNETADDRIPV4;
49	AssertCompileSize(RTNETADDRIPV4, 4);
50	/** Pointer to a IPv4 address. */
51	typedef RTNETADDRIPV4 *PRTNETADDRIPV4;
52	/** Pointer to a const IPv4 address. */
53	typedef RTNETADDRIPV4 const *PCRTNETADDRIPV4;
54
55	/**
56	* IPv6 address.
57	*/
58	typedef RTUINT128U RTNETADDRIPV6;
59	AssertCompileSize(RTNETADDRIPV6, 16);
60	/** Pointer to a IPv4 address. */
61	typedef RTNETADDRIPV6 *PRTNETADDRIPV6;
62	/** Pointer to a const IPv4 address. */
63	typedef RTNETADDRIPV6 const *PCRTNETADDRIPV6;
64
65	/**
66	* IPX address.
67	*/
68	#pragma pack(1)
69	typedef struct RTNETADDRIPX
70	{
71	/** The network ID. */
72	uint32_t Network;
73	/** The node ID. (Defaults to the MAC address apparently.) */
74	RTMAC Node;
75	} RTNETADDRIPX;
76	#pragma pack(0)
77	AssertCompileSize(RTNETADDRIPX, 4+6);
78	/** Pointer to an IPX address. */
79	typedef RTNETADDRIPX *PRTNETADDRIPX;
80	/** Pointer to a const IPX address. */
81	typedef RTNETADDRIPX const *PCRTNETADDRIPX;
82
83	/**
84	* Address union.
85	*/
86	typedef union RTNETADDRU
87	{
88	/** 64-bit view. */
89	uint64_t au64[2];
90	/** 32-bit view. */
91	uint32_t au32[4];
92	/** 16-bit view. */
93	uint16_t au16[8];
94	/** 8-bit view. */
95	uint8_t au8[16];
96	/** IPv4 view. */
97	RTNETADDRIPV4 IPv4;
98	/** IPv6 view. */
99	RTNETADDRIPV6 IPv6;
100	/** IPX view. */
101	RTNETADDRIPX Ipx;
102	/** MAC address view. */
103	RTMAC Mac;
104	} RTNETADDRU;
105	AssertCompileSize(RTNETADDRU, 16);
106	/** Pointer to an address union. */
107	typedef RTNETADDRU *PRTNETADDRU;
108	/** Pointer to a const address union. */
109	typedef RTNETADDRU const *PCRTNETADDRU;
110
111
112	/**
113	* Ethernet header.
114	*/
115	#pragma pack(1)
116	typedef struct RTNETETHERHDR
117	{
118	RTMAC DstMac;
119	RTMAC SrcMac;
120	/** Ethernet frame type or frame size, depending on the kind of ethernet.
121	* This is big endian on the wire. */
122	uint16_t EtherType;
123	} RTNETETHERHDR;
124	#pragma pack()
125	AssertCompileSize(RTNETETHERHDR, 14);
126	/** Pointer to an ethernet header. */
127	typedef RTNETETHERHDR *PRTNETETHERHDR;
128	/** Pointer to a const ethernet header. */
129	typedef RTNETETHERHDR const *PCRTNETETHERHDR;
130
131	/** @name EtherType (RTNETETHERHDR::EtherType)
132	* @{ */
133	#define RTNET_ETHERTYPE_IPV4 UINT16_C(0x0800)
134	#define RTNET_ETHERTYPE_ARP UINT16_C(0x0806)
135	#define RTNET_ETHERTYPE_IPV6 UINT16_C(0x86dd)
136	#define RTNET_ETHERTYPE_IPX_1 UINT16_C(0x8037)
137	#define RTNET_ETHERTYPE_IPX_2 UINT16_C(0x8137)
138	#define RTNET_ETHERTYPE_IPX_3 UINT16_C(0x8138)
139	/** @} */
140
141
142	/**
143	* IPv4 header.
144	* All is bigendian on the wire.
145	*/
146	#pragma pack(1)
147	typedef struct RTNETIPV4
148	{
149	#ifdef RT_BIG_ENDIAN
150	unsigned int ip_v : 4;
151	unsigned int ip_hl : 4;
152	unsigned int ip_tos : 8;
153	unsigned int ip_len : 16;
154	#else
155	/** 00:0 - Header length given as a 32-bit word count. */
156	unsigned int ip_hl : 4;
157	/** 00:4 - Header version. */
158	unsigned int ip_v : 4;
159	/** 01 - Type of service. */
160	unsigned int ip_tos : 8;
161	/** 02 - Total length (header + data). */
162	unsigned int ip_len : 16;
163	#endif
164	/** 04 - Packet idenficiation. */
165	uint16_t ip_id;
166	/** 06 - Offset if fragmented. */
167	uint16_t ip_off;
168	/** 08 - Time to live. */
169	uint8_t ip_ttl;
170	/** 09 - Protocol. */
171	uint8_t ip_p;
172	/** 0a - Header check sum. */
173	uint16_t ip_sum;
174	/** 0c - Source address. */
175	RTNETADDRIPV4 ip_src;
176	/** 10 - Destination address. */
177	RTNETADDRIPV4 ip_dst;
178	/** 14 - Options (optional). */
179	uint32_t ip_options[1];
180	} RTNETIPV4;
181	#pragma pack(0)
182	AssertCompileSize(RTNETIPV4, 6 * 4);
183	/** Pointer to a IPv4 header. */
184	typedef RTNETIPV4 *PRTNETIPV4;
185	/** Pointer to a const IPv4 header. */
186	typedef RTNETIPV4 const *PCRTNETIPV4;
187
188	/** The minimum IPv4 header length (in bytes).
189	* Up to and including RTNETIPV4::ip_dst. */
190	#define RTNETIPV4_MIN_LEN (20)
191
192
193	/** @name IPv4 Protocol Numbers
194	* @{ */
195	/** IPv4: ICMP */
196	#define RTNETIPV4_PROT_ICMP (0)
197	/** IPv4: TCP */
198	#define RTNETIPV4_PROT_TCP (6)
199	/** IPv4: UDP */
200	#define RTNETIPV4_PROT_UDP (17)
201	/** @} */
202
203	/** @name Common IPv4 Port Assignments
204	* @{
205	*/
206	/** Boostrap Protocol / DHCP) Server. */
207	#define RTNETIPV4_PORT_BOOTPS (67)
208	/** Boostrap Protocol / DHCP) Client. */
209	#define RTNETIPV4_PORT_BOOTPC (68)
210	/** @} */
211
212	RTDECL(uint16_t) RTNetIPv4HdrChecksum(PCRTNETIPV4 pIpHdr);
213	RTDECL(bool) RTNetIPv4IsHdrValid(PCRTNETIPV4 pIpHdr, size_t cbHdrMax, size_t cbPktMax);
214	RTDECL(uint32_t) RTNetIPv4PseudoChecksum(PCRTNETIPV4 pIpHdr);
215	RTDECL(uint32_t) RTNetIPv4PseudoChecksumBits(RTNETADDRIPV4 SrcAddr, RTNETADDRIPV4 DstAddr, uint8_t bProtocol, uint16_t cbPkt);
216	RTDECL(uint32_t) RTNetIPv4AddDataChecksum(void const pvData, size_t cbData, uint32_t u32Sum, bool pfOdd);
217	RTDECL(uint16_t) RTNetIPv4FinalizeChecksum(uint32_t u32Sum);
218
219
220	/**
221	* UDP header.
222	*/
223	#pragma pack(1)
224	typedef struct RTNETUDP
225	{
226	/** The source port. */
227	uint16_t uh_sport;
228	/** The destination port. */
229	uint16_t uh_dport;
230	/** The length of the UDP header and associated data. */
231	uint16_t uh_ulen;
232	/** The checksum of the pseudo header, the UDP header and the data. */
233	uint16_t uh_sum;
234	} RTNETUDP;
235	#pragma pack(0)
236	AssertCompileSize(RTNETUDP, 8);
237	/** Pointer to an UDP header. */
238	typedef RTNETUDP *PRTNETUDP;
239	/** Pointer to a const UDP header. */
240	typedef RTNETUDP const *PCRTNETUDP;
241
242	/** The minimum UDP packet length (in bytes). (RTNETUDP::uh_ulen) */
243	#define RTNETUDP_MIN_LEN (8)
244
245	RTDECL(uint32_t) RTNetIPv4AddUDPChecksum(PCRTNETUDP pUdpHdr, uint32_t u32Sum);
246	RTDECL(uint16_t) RTNetIPv4UDPChecksum(PCRTNETIPV4 pIpHdr, PCRTNETUDP pUdpHdr, void const *pvData);
247	RTDECL(bool) RTNetIPv4IsUDPSizeValid(PCRTNETIPV4 pIpHdr, PCRTNETUDP pUdpHdr, size_t cbPktMax);
248	RTDECL(bool) RTNetIPv4IsUDPValid(PCRTNETIPV4 pIpHdr, PCRTNETUDP pUdpHdr, void const *pvData, size_t cbPktMax);
249
250	/**
251	* IPv4 BOOTP / DHCP packet.
252	*/
253	#pragma pack(1)
254	typedef struct RTNETBOOTP
255	{
256	/** 00 - The packet opcode. */
257	uint8_t bp_op;
258	/** 01 - Hardware address type. Same as RTNETARPHDR::ar_htype. */
259	uint8_t bp_htype;
260	/** 02 - Hardware address length. */
261	uint8_t bp_hlen;
262	/** 03 - Gateway hops. */
263	uint8_t bp_hops;
264	/** 04 - Transaction ID. */
265	uint32_t bp_xid;
266	/** 08 - Seconds since boot started. */
267	uint16_t bp_secs;
268	/** 0a - Unused (BOOTP) / Flags (DHCP). */
269	uint16_t bp_flags;
270	/** 0c - Client IPv4 address. */
271	RTNETADDRIPV4 bp_ciaddr;
272	/** 10 - Your IPv4 address. */
273	RTNETADDRIPV4 bp_yiaddr;
274	/** 14 - Server IPv4 address. */
275	RTNETADDRIPV4 bp_siaddr;
276	/** 18 - Gateway IPv4 address. */
277	RTNETADDRIPV4 bp_giaddr;
278	/** 1c - Client hardware address. */
279	union
280	{
281	uint8_t au8[16];
282	RTMAC Mac;
283	} bp_chaddr;
284	/** 2c - Server name. */
285	uint8_t bp_sname[64];
286	/** 6c - File name / more DHCP options. */
287	uint8_t bp_file[128];
288	/** ec - Vendor specific area (BOOTP) / Options (DHCP).
289	* @remark This is really 312 bytes in the DHCP version. */
290	union
291	{
292	uint8_t au8[128];
293	struct DHCP
294	{
295	/** ec - The DHCP cookie (RTNET_DHCP_COOKIE). */
296	uint32_t dhcp_cookie;
297	/** f0 - The DHCP options. */
298	uint8_t dhcp_opts[124];
299	} Dhcp;
300	} bp_vend;
301
302	} RTNETBOOTP;
303	#pragma pack(0)
304	AssertCompileSize(RTNETBOOTP, 0xec + 128);
305	/** Pointer to a BOOTP / DHCP packet. */
306	typedef RTNETBOOTP *PRTNETBOOTP;
307	/** Pointer to a const BOOTP / DHCP packet. */
308	typedef RTNETBOOTP const *PCRTNETBOOTP;
309
310	/** Minimum BOOTP packet length. For quick validation, no standard thing really. */
311	#define RTNETBOOTP_MIN_LEN 0xec
312	/** Minimum DHCP packet length. For quick validation, no standard thing really. */
313	#define RTNETBOOTP_DHCP_MIN_LEN 0xf1
314
315	/** @name BOOTP packet opcode values
316	* @{ */
317	#define RTNETBOOTP_OP_REQUEST 1
318	#define RTNETBOOTP_OP_REPLY 2
319	/** @} */
320
321	/** @name DHCP flags (RTNETBOOTP::bp_flags)
322	* @{ */
323	#define RTNET_DHCP_FLAGS_NO_BROADCAST UINT16_C(0x8000) /** @todo check test!!! */
324	/** @} */
325
326	/** The DHCP cookie (network endian). */
327	#define RTNET_DHCP_COOKIE UINT32_C(0x63825363)
328
329	/**
330	* An IPv4 DHCP option header.
331	*/
332	typedef struct RTNETDHCPOPT
333	{
334	/** 00 - The DHCP option. */
335	uint8_t dhcp_opt;
336	/** 01 - The data length (excluding this header). */
337	uint8_t dhcp_len;
338	/* 02 - The option data follows here, optional and of variable length. */
339	} RTNETDHCPOPT;
340	AssertCompileSize(RTNETDHCPOPT, 2);
341	/** Pointer to a DHCP option header. */
342	typedef RTNETDHCPOPT *PRTNETDHCPOPT;
343	/** Pointer to a const DHCP option header. */
344	typedef RTNETDHCPOPT const *PCRTNETDHCPOPT;
345
346	/** @name DHCP options
347	* @{ */
348	/** 1 byte padding, this has no dhcp_len field. */
349	#define RTNET_DHCP_OPT_PAD 0
350	/** Have a 8-bit message type value as data, see RTNET_DHCP_MT_. /
351	#define RTNET_DHCP_OPT_MSG_TYPE 53
352	/** Marks the end of the DHCP options, this has no dhcp_len field. */
353	#define RTNET_DHCP_OPT_END 255
354	/** @} */
355
356	/** @name DHCP Message Types (option 53)
357	* @{ */
358	#define RTNET_DHCP_MT_DISCOVER 1
359	#define RTNET_DHCP_MT_OFFER 2
360	#define RTNET_DHCP_MT_REQUEST 3
361	#define RTNET_DHCP_MT_DECLINE 4
362	#define RTNET_DHCP_MT_ACK 5
363	#define RTNET_DHCP_MT_NAC 6
364	#define RTNET_DHCP_MT_RELEASE 7
365	#define RTNET_DHCP_MT_INFORM 8
366	/** @} */
367
368	RTDECL(bool) RTNetIPv4IsDHCPValid(PCRTNETUDP pUdpHdr, PCRTNETBOOTP pDhcp, size_t cbDhcp, uint8_t *pMsgType);
369
370
371	/**
372	* IPv4 DHCP packet.
373	* @obsolete Use RTNETBOOTP.
374	*/
375	#pragma pack(1)
376	typedef struct RTNETDHCP
377	{
378	/** 00 - The packet opcode. */
379	uint8_t Op;
380	/** Hardware address type. */
381	uint8_t HType;
382	/** Hardware address length. */
383	uint8_t HLen;
384	uint8_t Hops;
385	uint32_t XID;
386	uint16_t Secs;
387	uint16_t Flags;
388	/** Client IPv4 address. */
389	RTNETADDRIPV4 CIAddr;
390	/** Your IPv4 address. */
391	RTNETADDRIPV4 YIAddr;
392	/** Server IPv4 address. */
393	RTNETADDRIPV4 SIAddr;
394	/** Gateway IPv4 address. */
395	RTNETADDRIPV4 GIAddr;
396	/** Client hardware address. */
397	uint8_t CHAddr[16];
398	/** Server name. */
399	uint8_t SName[64];
400	uint8_t File[128];
401	uint8_t abMagic[4];
402	uint8_t DhcpOpt;
403	uint8_t DhcpLen; /* 1 */
404	uint8_t DhcpReq;
405	uint8_t abOptions[57];
406	} RTNETDHCP;
407	#pragma pack(0)
408	/** @todo AssertCompileSize(RTNETDHCP, ); */
409	/** Pointer to a DHCP packet. */
410	typedef RTNETDHCP *PRTNETDHCP;
411	/** Pointer to a const DHCP packet. */
412	typedef RTNETDHCP const *PCRTNETDHCP;
413
414
415	/**
416	* TCP packet.
417	*/
418	#pragma pack(1)
419	typedef struct RTNETTCP
420	{
421	/** 00 - The source port. */
422	uint16_t th_sport;
423	/** 02 - The destination port. */
424	uint16_t th_dport;
425	/** 04 - The sequence number. */
426	uint32_t th_seq;
427	/** 08 - The acknowledgement number. */
428	uint32_t th_ack;
429	#ifdef RT_BIG_ENDIAN
430	unsigned int th_win : 16;
431	unsigned int th_flags : 8;
432	unsigned int th_off : 4;
433	unsigned int th_x2 : 4;
434	#else
435	/** 0c:0 - Reserved. */
436	unsigned int th_x2 : 4;
437	/** 0c:4 - The data offset given as a dword count from the start of this header. */
438	unsigned int th_off : 4;
439	/** 0d - flags. */
440	unsigned int th_flags : 8;
441	/** 0e - The window. */
442	unsigned int th_win : 16;
443	#endif
444	/** 10 - The checksum of the pseudo header, the TCP header and the data. */
445	uint16_t th_sum;
446	/** 12 - The urgent pointer. */
447	uint16_t th_urp;
448	/* (options follows here and then the data (aka text).) */
449	} RTNETTCP;
450	#pragma pack(0)
451	AssertCompileSize(RTNETTCP, 20);
452	/** Pointer to a TCP packet. */
453	typedef RTNETTCP *PRTNETTCP;
454	/** Pointer to a const TCP packet. */
455	typedef RTNETTCP const *PCRTNETTCP;
456
457	/** The minimum TCP header length (in bytes). (RTNETTCP::th_off * 4) */
458	#define RTNETTCP_MIN_LEN (20)
459
460	RTDECL(uint32_t) RTNetIPv4AddTCPChecksum(PCRTNETTCP pTcpHdr, uint32_t u32Sum);
461	RTDECL(uint16_t) RTNetIPv4TCPChecksum(PCRTNETIPV4 pIpHdr, PCRTNETTCP pTcpHdr, void const *pvData);
462	RTDECL(bool) RTNetIPv4IsTCPSizeValid(PCRTNETIPV4 pIpHdr, PCRTNETTCP pTcpHdr, size_t cbHdrMax, size_t cbPktMax);
463	RTDECL(bool) RTNetIPv4IsTCPValid(PCRTNETIPV4 pIpHdr, PCRTNETTCP pTcpHdr, size_t cbHdrMax, void const *pvData, size_t cbPktMax);
464
465
466	/**
467	* IPv4 ICMP packet header.
468	*/
469	#pragma pack(1)
470	typedef struct RTNETICMPV4HDR
471	{
472	/** 00 - The ICMP message type. */
473	uint8_t icmp_type;
474	/** 01 - Type specific code that further qualifies the message. */
475	uint8_t icmp_code;
476	/** 02 - Checksum of the ICMP message. */
477	uint16_t icmp_cksum;
478	} RTNETICMPV4HDR;
479	#pragma pack(0)
480	AssertCompileSize(RTNETICMPV4HDR, 4);
481	/** Pointer to an ICMP packet header. */
482	typedef RTNETICMPV4HDR *PRTNETICMPV4HDR;
483	/** Pointer to a const ICMP packet header. */
484	typedef RTNETICMPV4HDR const *PCRTNETICMPV4HDR;
485
486	/** @name ICMP (v4) message types.
487	* @{ */
488	#define RTNETICMPV4_TYPE_ECHO_REPLY 0
489	#define RTNETICMPV4_TYPE_ECHO_REQUEST 8
490	#define RTNETICMPV4_TYPE_TRACEROUTE 30
491	/** @} */
492
493	/**
494	* IPv4 ICMP ECHO Reply & Request packet.
495	*/
496	#pragma pack(1)
497	typedef struct RTNETICMPV4ECHO
498	{
499	/** 00 - The ICMP header. */
500	RTNETICMPV4HDR Hdr;
501	/** 04 - The identifier to help the requestor match up the reply.
502	* Can be 0. Typically fixed value. */
503	uint16_t icmp_id;
504	/** 06 - The sequence number to help the requestor match up the reply.
505	* Can be 0. Typically incrementing between requests. */
506	uint16_t icmp_seq;
507	/** 08 - Variable length data that is to be returned unmodified in the reply. */
508	uint8_t icmp_data[1];
509	} RTNETICMPV4ECHO;
510	#pragma pack(0)
511	AssertCompileSize(RTNETICMPV4ECHO, 9);
512	/** Pointer to an ICMP ECHO packet. */
513	typedef RTNETICMPV4ECHO *PRTNETICMPV4ECHO;
514	/** Pointer to a const ICMP ECHO packet. */
515	typedef RTNETICMPV4ECHO const *PCRTNETICMPV4ECHO;
516
517	/**
518	* IPv4 ICMP TRACEROUTE packet.
519	* This is an reply to an IP packet with the traceroute option set.
520	*/
521	#pragma pack(1)
522	typedef struct RTNETICMPV4TRACEROUTE
523	{
524	/** 00 - The ICMP header. */
525	RTNETICMPV4HDR Hdr;
526	/** 04 - Identifier copied from the traceroute option's ID number. */
527	uint16_t icmp_id;
528	/** 06 - Unused. (Possibly an icmp_seq?) */
529	uint16_t icmp_void;
530	/** 08 - Outbound hop count. From the IP packet causing this message. */
531	uint16_t icmp_ohc;
532	/** 0a - Return hop count. From the IP packet causing this message. */
533	uint16_t icmp_rhc;
534	/** 0c - Output link speed, 0 if not known. */
535	uint32_t icmp_speed;
536	/** 10 - Output link MTU, 0 if not known. */
537	uint32_t icmp_mtu;
538	} RTNETICMPV4TRACEROUTE;
539	#pragma pack(0)
540	AssertCompileSize(RTNETICMPV4TRACEROUTE, 20);
541	/** Pointer to an ICMP TRACEROUTE packet. */
542	typedef RTNETICMPV4TRACEROUTE *PRTNETICMPV4TRACEROUTE;
543	/** Pointer to a const ICMP TRACEROUTE packet. */
544	typedef RTNETICMPV4TRACEROUTE const *PCRTNETICMPV4TRACEROUTE;
545
546	/** @todo add more ICMPv4 as needed. */
547
548	/**
549	* IPv4 ICMP union packet.
550	*/
551	typedef union RTNETICMPV4
552	{
553	RTNETICMPV4HDR Hdr;
554	RTNETICMPV4ECHO Echo;
555	RTNETICMPV4TRACEROUTE Traceroute;
556	} RTNETICMPV4;
557	/** Pointer to an ICMP union packet. */
558	typedef RTNETICMPV4 *PRTNETICMPV4;
559	/** Pointer to a const ICMP union packet. */
560	typedef RTNETICMPV4 const *PCRTNETICMPV4;
561
562
563	/** @todo add ICMPv6 when needed. */
564
565
566	/**
567	* Ethernet ARP header.
568	*/
569	#pragma pack(1)
570	typedef struct RTNETARPHDR
571	{
572	/** The hardware type. */
573	uint16_t ar_htype;
574	/** The protocol type (ethertype). */
575	uint16_t ar_ptype;
576	/** The hardware address length. */
577	uint8_t ar_hlen;
578	/** The protocol address length. */
579	uint8_t ar_plen;
580	/** The operation. */
581	uint16_t ar_oper;
582	} RTNETARPHDR;
583	#pragma pack(0)
584	AssertCompileSize(RTNETARPHDR, 8);
585	/** Pointer to an ethernet ARP header. */
586	typedef RTNETARPHDR *PRTNETARPHDR;
587	/** Pointer to a const ethernet ARP header. */
588	typedef RTNETARPHDR const *PCRTNETARPHDR;
589
590	/** ARP hardware type - ethernet. */
591	#define RTNET_ARP_ETHER UINT16_C(1)
592
593	/** @name ARP operations
594	* @{ */
595	#define RTNET_ARPOP_REQUEST UINT16_C(1) /*< Request hardward address given a protocol address (ARP). /
596	#define RTNET_ARPOP_REPLY UINT16_C(2)
597	#define RTNET_ARPOP_REVREQUEST UINT16_C(3) /*< Request protocol address given a hardware address (RARP). /
598	#define RTNET_ARPOP_REVREPLY UINT16_C(4)
599	#define RTNET_ARPOP_INVREQUEST UINT16_C(8) /*< Inverse ARP. /
600	#define RTNET_ARPOP_INVREPLY UINT16_C(9)
601	/** Check if an ARP operation is a request or not. */
602	#define RTNET_ARPOP_IS_REQUEST(Op) ((Op) & 1)
603	/** Check if an ARP operation is a reply or not. */
604	#define RTNET_ARPOP_IS_REPLY(Op) (!RTNET_ARPOP_IS_REQUEST(Op))
605	/** @} */
606
607
608	/**
609	* Ethernet IPv4 + 6-byte MAC ARP request packet.
610	*/
611	#pragma pack(1)
612	typedef struct RTNETARPIPV4
613	{
614	/** ARP header. */
615	RTNETARPHDR Hdr;
616	/** The sender hardware address. */
617	RTMAC ar_sha;
618	/** The sender protocol address. */
619	RTNETADDRIPV4 ar_spa;
620	/** The target hardware address. */
621	RTMAC ar_tha;
622	/** The arget protocol address. */
623	RTNETADDRIPV4 ar_tpa;
624	} RTNETARPIPV4;
625	#pragma pack(0)
626	AssertCompileSize(RTNETARPIPV4, 8+6+4+6+4);
627	/** Pointer to an ethernet IPv4+MAC ARP request packet. */
628	typedef RTNETARPIPV4 *PRTNETARPIPV4;
629	/** Pointer to a const ethernet IPv4+MAC ARP request packet. */
630	typedef RTNETARPIPV4 const *PCRTNETARPIPV4;
631
632
633	/** @todo RTNETNDP (IPv6)*/
634
635
636	/** @} */
637
638	__END_DECLS
639
640	#endif
641

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source: vbox/trunk/include/iprt/net.h@ 11270

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