File: packet_types.h

package info (click to toggle)
nmap 6.00-0.3%2Bdeb7u1
  • links: PTS, VCS
  • area: main
  • in suites: wheezy
  • size: 55,576 kB
  • sloc: ansic: 108,190; cpp: 60,191; sh: 19,314; python: 16,531; xml: 9,428; makefile: 2,473; perl: 1,980; yacc: 608; lex: 469; asm: 372
file content (698 lines) | stat: -rw-r--r-- 23,421 bytes parent folder | download | duplicates (5)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
694
695
696
697
698

// IP packet structures...
// -----------------------
// Note: All of this is hard coded little endian!


typedef long n_long;
typedef long n_time;


struct ip
  {
    unsigned int ip_hl:4;               /* header length */
    unsigned int ip_v:4;                /* version */
    u_char ip_tos;                    /* type of service */
    u_short ip_len;                     /* total length */
    u_short ip_id;                      /* identification */
    u_short ip_off;                     /* fragment offset field */
#define IP_RF 0x8000                    /* reserved fragment flag */
#define IP_DF 0x4000                    /* dont fragment flag */
#define IP_MF 0x2000                    /* more fragments flag */
#define IP_OFFMASK 0x1fff               /* mask for fragmenting bits */
    u_char ip_ttl;                    /* time to live */
    u_char ip_p;                      /* protocol */
    u_short ip_sum;                     /* checksum */
    struct in_addr ip_src, ip_dst;      /* source and dest address */
  };

#define    MAX_IPOPTLEN            40

/*
 *	IEEE 802.3 Ethernet magic constants.  The frame sizes omit the preamble
 *	and FCS/CRC (frame check sequence). 
 */

#define ETH_ALEN	6		/* Octets in one ethernet addr	 */
#define ETH_HLEN	14		/* Total octets in header.	 */
#define ETH_ZLEN	60		/* Min. octets in frame sans FCS */
#define ETH_DATA_LEN	1500		/* Max. octets in payload	 */
#define ETH_FRAME_LEN	1514		/* Max. octets in frame sans FCS */

/*
 *	These are the defined Ethernet Protocol ID's.
 */

#define ETH_P_LOOP	0x0060		/* Ethernet Loopback packet	*/
#define ETH_P_ECHO	0x0200		/* Ethernet Echo packet		*/
#define ETH_P_PUP	0x0400		/* Xerox PUP packet		*/
#define ETH_P_IP	0x0800		/* Internet Protocol packet	*/
#define ETH_P_X25	0x0805		/* CCITT X.25			*/
#define ETH_P_ARP	0x0806		/* Address Resolution packet	*/
#define	ETH_P_BPQ	0x08FF		/* G8BPQ AX.25 Ethernet Packet	[ NOT AN OFFICIALLY REGISTERED ID ] */
#define ETH_P_DEC       0x6000          /* DEC Assigned proto           */
#define ETH_P_DNA_DL    0x6001          /* DEC DNA Dump/Load            */
#define ETH_P_DNA_RC    0x6002          /* DEC DNA Remote Console       */
#define ETH_P_DNA_RT    0x6003          /* DEC DNA Routing              */
#define ETH_P_LAT       0x6004          /* DEC LAT                      */
#define ETH_P_DIAG      0x6005          /* DEC Diagnostics              */
#define ETH_P_CUST      0x6006          /* DEC Customer use             */
#define ETH_P_SCA       0x6007          /* DEC Systems Comms Arch       */
#define ETH_P_RARP      0x8035		/* Reverse Addr Res packet	*/
#define ETH_P_ATALK	0x809B		/* Appletalk DDP		*/
#define ETH_P_AARP	0x80F3		/* Appletalk AARP		*/
#define ETH_P_IPX	0x8137		/* IPX over DIX			*/
#define ETH_P_IPV6	0x86DD		/* IPv6 over bluebook		*/

/*
 *	Non DIX types. Won't clash for 1500 types.
 */
 
#define ETH_P_802_3	0x0001		/* Dummy type for 802.3 frames  */
#define ETH_P_AX25	0x0002		/* Dummy protocol id for AX.25  */
#define ETH_P_ALL	0x0003		/* Every packet (be careful!!!) */
#define ETH_P_802_2	0x0004		/* 802.2 frames 		*/
#define ETH_P_SNAP	0x0005		/* Internal only		*/
#define ETH_P_DDCMP     0x0006          /* DEC DDCMP: Internal only     */
#define ETH_P_WAN_PPP   0x0007          /* Dummy type for WAN PPP frames*/
#define ETH_P_PPP_MP    0x0008          /* Dummy type for PPP MP frames */
#define ETH_P_LOCALTALK 0x0009		/* Localtalk pseudo type 	*/
#define ETH_P_PPPTALK	0x0010		/* Dummy type for Atalk over PPP*/
#define ETH_P_TR_802_2	0x0011		/* 802.2 frames 		*/

struct etherproto {
	char *s;
	u_short p;
};
extern struct etherproto etherproto_db[];

// Ethernet Header
struct ether_header 
{
	unsigned char	h_dest[ETH_ALEN];	/* destination eth addr	*/
	unsigned char	h_source[ETH_ALEN];	/* source ether addr	*/
	unsigned short	h_proto;		/* packet type ID field	*/
};

// ARP/RARP
///////////////////////////////////////////////////////////////////////
static u_char bcastaddr[] = { 0xff, 0xff, 0xff, 0xff, 0xff, 0xff };

/*
 *	This structure defines an ethernet arp header.
 */

struct arphdr
{
	unsigned short	ar_hrd;		/* format of hardware address	*/
	unsigned short	ar_pro;		/* format of protocol address	*/
	unsigned char	ar_hln;		/* length of hardware address	*/
	unsigned char	ar_pln;		/* length of protocol address	*/
	unsigned short	ar_op;		/* ARP opcode (command)		*/
};

#define ARPD_UPDATE	0x01
#define ARPD_LOOKUP	0x02
#define ARPD_FLUSH	0x03

/*#define ARPHRD_ETHER	0x01

#define ARPOP_REQUEST	0x01
#define ARPOP_REPLY		0x02
#define ARPOP_REVREQUEST	0x03
#define ARPOP_REVREPLY		0x04
*/
/*
 * Ethernet Address Resolution Protocol.
 *
 * See RFC 826 for protocol description.  Structure below is adapted
 * to resolving internet addresses.  Field names used correspond to
 * RFC 826.
 */
struct	ether_arp {
	struct	arphdr ea_hdr;	/* fixed-size header */
	u_char	arp_sha[ETH_ALEN];	/* sender hardware address */
	u_char	arp_spa[4];	/* sender protocol address */
	u_char	arp_tha[ETH_ALEN];	/* target hardware address */
	u_char	arp_tpa[4];	/* target protocol address */
};
#define	arp_hrd	ea_hdr.ar_hrd
#define	arp_pro	ea_hdr.ar_pro
#define	arp_hln	ea_hdr.ar_hln
#define	arp_pln	ea_hdr.ar_pln
#define	arp_op	ea_hdr.ar_op

// IP Header in Little Endian
//////////////////////////////
struct iphdr {
	u_char	ip_hl:4,		/* header length */
			ip_v:4;			/* version */
	u_char	ip_tos;			/* type of service */
	short	ip_len;			/* total length */
	u_short	ip_id;			/* identification */
	short	ip_off;			/* fragment offset field */
#define	IP_DF 0x4000		/* dont fragment flag */
#define	IP_MF 0x2000		/* more fragments flag */
	u_char	ip_ttl;			/* time to live */
	u_char	ip_p;			/* protocol */
	u_short	ip_sum;			/* checksum */
	struct	in_addr ip_src,ip_dst;	/* source and dest address */
};

#define	IP_MAXPACKET	65535		/* maximum packet size */

// Definitions for options.
#define	IPOPT_COPIED(o)		((o)&0x80)
#define	IPOPT_CLASS(o)		((o)&0x60)
#define	IPOPT_NUMBER(o)		((o)&0x1f)

#define	IPOPT_CONTROL		0x00
#define	IPOPT_RESERVED1		0x20
#define	IPOPT_DEBMEAS		0x40
#define	IPOPT_RESERVED2		0x60

#define	IPOPT_EOL		0		/* end of option list */
#define	IPOPT_NOP		1		/* no operation */

#define	IPOPT_RR		7		/* record packet route */
#define	IPOPT_TS		68		/* timestamp */
#define	IPOPT_SECURITY	130		/* provide s,c,h,tcc */
#define	IPOPT_LSRR		131		/* loose source route */
#define	IPOPT_SATID		136		/* satnet id */
#define	IPOPT_SSRR		137		/* strict source route */


// Time stamp option structure.
struct	ip_timestamp {
	u_char	ipt_code;		/* IPOPT_TS */
	u_char	ipt_len;		/* size of structure (variable) */
	u_char	ipt_ptr;		/* index of current entry */
	u_char	ipt_flg:4,		/* flags, see below */
		ipt_oflw:4;			/* overflow counter */
	union ipt_timestamp {
		n_long	ipt_time[1];
		struct	ipt_ta {
			struct in_addr ipt_addr;
			n_long ipt_time;
		} ipt_ta[1];
	} ipt_timestamp;
};

/* flag bits for ipt_flg */
#define	IPOPT_TS_TSONLY		0		/* timestamps only */
#define	IPOPT_TS_TSANDADDR	1		/* timestamps and addresses */
#define	IPOPT_TS_PRESPEC	2		/* specified modules only */

/* bits for security (not byte swapped) */
#define	IPOPT_SECUR_UNCLASS	0x0000
#define	IPOPT_SECUR_CONFID	0xf135
#define	IPOPT_SECUR_EFTO	0x789a
#define	IPOPT_SECUR_MMMM	0xbc4d
#define	IPOPT_SECUR_RESTR	0xaf13
#define	IPOPT_SECUR_SECRET	0xd788
#define	IPOPT_SECUR_TOPSECRET	0x6bc5

// ICMP Header
////////////////////////////////////////////////////////////////////////
//struct icmphdr {
//	u_char	icmp_type;		/* type of message, see below */
//	u_char	icmp_code;		/* type sub code */
//	u_short	icmp_cksum;		/* ones complement cksum of struct */
//	union {
//		u_char ih_pptr;			/* ICMP_PARAMPROB */
//		struct in_addr ih_gwaddr;	/* ICMP_REDIRECT */
//		struct ih_idseq {
//			n_short	icd_id;
//			n_short	icd_seq;
//		} ih_idseq;
//		int ih_void;
//	} icmp_hun;
//#define	icmp_pptr	icmp_hun.ih_pptr
//#define	icmp_gwaddr	icmp_hun.ih_gwaddr
//#define	icmp_id		icmp_hun.ih_idseq.icd_id
//#define	icmp_seq	icmp_hun.ih_idseq.icd_seq
//#define	icmp_void	icmp_hun.ih_void
//	union {
//		struct id_ts {
//			n_time its_otime;
//			n_time its_rtime;
//			n_time its_ttime;
//		} id_ts;
//		struct id_ip  {
//			struct iphdr idi_ip;
//			/* options and then 64 bits of data */
//		} id_ip;
//		u_long	id_mask;
//		char	id_data[1];
//	} icmp_dun;
//#define	icmp_otime	icmp_dun.id_ts.its_otime
//#define	icmp_rtime	icmp_dun.id_ts.its_rtime
//#define	icmp_ttime	icmp_dun.id_ts.its_ttime
//#define	icmp_ip		icmp_dun.id_ip.idi_ip
//#define	icmp_mask	icmp_dun.id_mask
//#define	icmp_data	icmp_dun.id_data
//};

//typedef struct icmp_hdr icmp;
/*
 * Lower bounds on packet lengths for various types.
 * For the error advice packets must first insure that the
 * packet is large enought to contain the returned ip header.
 * Only then can we do the check to see if 64 bits of packet
 * data have been returned, since we need to check the returned
 * ip header length.
 */
#define	ICMP_MINLEN	8				/* abs minimum */
#define	ICMP_TSLEN	(8 + 3 * sizeof (n_time))	/* timestamp */
#define	ICMP_MASKLEN	12				/* address mask */
#define	ICMP_ADVLENMIN	(8 + sizeof (struct ip) + 8)	/* min */
#define	ICMP_ADVLEN(p)	(8 + ((p)->icmp_ip.ip_hl << 2) + 8)
	/* N.B.: must separately check that ip_hl >= 5 */

/*
 * Definition of type and code field values.
 */
#define	ICMP_ECHOREPLY		0		/* echo reply */

/* UNREACH codes */
#define ICMP_UNREACH					3       /* dest unreachable, codes: */ 
#define ICMP_UNREACH_NET                0       /* bad net */
#define ICMP_UNREACH_HOST               1       /* bad host */
#define ICMP_UNREACH_PROTOCOL           2       /* bad protocol */
#define ICMP_UNREACH_PORT               3       /* bad port */
#define ICMP_UNREACH_NEEDFRAG           4       /* IP_DF caused drop */
#define ICMP_UNREACH_SRCFAIL            5       /* src route failed */
#define ICMP_UNREACH_NET_UNKNOWN        6       /* unknown net */
#define ICMP_UNREACH_HOST_UNKNOWN       7       /* unknown host */
#define ICMP_UNREACH_ISOLATED           8       /* src host isolated */
#define ICMP_UNREACH_NET_PROHIB         9       /* net denied */
#define ICMP_UNREACH_HOST_PROHIB        10      /* host denied */
#define ICMP_UNREACH_TOSNET             11      /* bad tos for net */
#define ICMP_UNREACH_TOSHOST            12      /* bad tos for host */
#define ICMP_UNREACH_FILTER_PROHIB      13      /* admin prohib */
#define ICMP_UNREACH_HOST_PRECEDENCE    14      /* host prec vio. */
#define ICMP_UNREACH_PRECEDENCE_CUTOFF  15      /* prec cutoff */
   

#define	ICMP_SOURCEQUENCH				4		/* packet lost, slow down */
#define ICMP_ROUTERADVERT				9       /* router advertisement */
#define ICMP_ROUTERSOLICIT				10      /* router solicitation */    
#define	ICMP_REDIRECT					5		/* shorter route, codes: */
#define	ICMP_REDIRECT_NET				0		/* for network */
#define	ICMP_REDIRECT_HOST				1		/* for host */
#define	ICMP_REDIRECT_TOSNET			2		/* for tos and net */
#define	ICMP_REDIRECT_TOSHOST			3		/* for tos and host */
#define	ICMP_ECHO						8		/* echo service */
#define	ICMP_TIMXCEED					11		/* time exceeded, code: */
#define	ICMP_TIMXCEED_INTRANS			0		/* ttl==0 in transit */
#define	ICMP_TIMXCEED_REASS				1		/* ttl==0 in reass */
#define	ICMP_PARAMPROB					12		/* ip header bad */
#define	ICMP_TSTAMP						13		/* timestamp request */
#define	ICMP_TSTAMPREPLY				14		/* timestamp reply */
#define	ICMP_IREQ						15		/* information request */
#define	ICMP_IREQREPLY					16		/* information reply */
#define	ICMP_MASKREQ					17		/* address mask request */
#define	ICMP_MASKREPLY					18		/* address mask reply */

#define	ICMP_MAXTYPE		18

#define	ICMP_INFOTYPE(type) \
	((type) == ICMP_ECHOREPLY || (type) == ICMP_ECHO || \
	(type) == ICMP_TSTAMP || (type) == ICMP_TSTAMPREPLY || \
	(type) == ICMP_IREQ || (type) == ICMP_IREQREPLY || \
	(type) == ICMP_MASKREQ || (type) == ICMP_MASKREPLY)

/*** ICMP types ********************************************************/
#define ICMP_TYPE_0     "Echo reply"
#define ICMP_TYPE_3     "Destination unreachable"
#define ICMP_TYPE_4     "Source quench"
#define ICMP_TYPE_5     "Redirect"
#define ICMP_TYPE_8     "Echo"
#define ICMP_TYPE_11    "Time exceeded"
#define ICMP_TYPE_12    "Parameter problem"
#define ICMP_TYPE_13    "Timestamp"
#define ICMP_TYPE_14    "Timestamp reply"
#define ICMP_TYPE_15    "Information request"
#define ICMP_TYPE_16    "Information reply"
#define ICMP_TYPE_17    "Address mask request"
#define ICMP_TYPE_18    "Adress mask reply"

/* pulled token stuff from tcpdump */
struct tok {
	int v;			/* value */
	char *s;		/* string */
};

// TCP
/////////////////////////////////////////////////////////////////////////
typedef	u_long	tcp_seq;

// TCP header. Per RFC 793, September, 1981. In Little Endian
struct tcphdr {
	u_short	th_sport;		/* source port */
	u_short	th_dport;		/* destination port */
	tcp_seq	th_seq;			/* sequence number */
	tcp_seq	th_ack;			/* acknowledgement number */
	u_char	th_x2:4,		/* (unused) */
		    th_off:4;		/* data offset */
	u_char	th_flags;
#define	TH_FIN	0x01
#define	TH_SYN	0x02
#define	TH_RST	0x04
#define	TH_PSH	0x08
#define	TH_PUSH	0x08
#define	TH_ACK	0x10
#define	TH_URG	0x20
#define TH_ECE  0x40
#define TH_CWR  0x80
	u_short	th_win;			/* window */
	u_short	th_sum;			/* checksum */
	u_short	th_urp;			/* urgent pointer */
};

#define	TCPOPT_EOL	0
#define	TCPOPT_NOP	1
#define	TCPOPT_MAXSEG	2

enum {
  TCP_ESTABLISHED = 1,
  TCP_SYN_SENT,
  TCP_SYN_RECV,
  TCP_FIN_WAIT1,
  TCP_FIN_WAIT2,
  TCP_TIME_WAIT,
  TCP_CLOSE,
  TCP_CLOSE_WAIT,
  TCP_LAST_ACK,
  TCP_LISTEN,
  TCP_CLOSING	/* now a valid state */
};

// UDP Header
//////////////////////////////////////////////////////////////////////////////
struct udphdr {
  unsigned short	source;
  unsigned short	dest;
  unsigned short	len;
  unsigned short	check;
};


// Netbios/SAMBA
//////////////////////////////////////////////////////////////////////////////
/* the basic packet size, assuming no words or bytes */
#define smb_size 39

/* offsets into message for common items */
#define smb_com 8
#define smb_rcls 9
#define smb_reh 10
#define smb_err 11
#define smb_flg 13
#define smb_flg2 14
#define smb_reb 13
#define smb_tid 28
#define smb_pid 30
#define smb_uid 32
#define smb_mid 34
#define smb_wct 36
#define smb_vwv 37
#define smb_vwv0 37
#define smb_vwv1 39
#define smb_vwv2 41
#define smb_vwv3 43
#define smb_vwv4 45
#define smb_vwv5 47
#define smb_vwv6 49
#define smb_vwv7 51
#define smb_vwv8 53
#define smb_vwv9 55
#define smb_vwv10 57
#define smb_vwv11 59
#define smb_vwv12 61
#define smb_vwv13 63
#define smb_vwv14 65
#define smb_vwv15 67
#define smb_vwv16 69
#define smb_vwv17 71

/* the complete */
#define SMBmkdir      0x00   /* create directory */
#define SMBrmdir      0x01   /* delete directory */
#define SMBopen       0x02   /* open file */
#define SMBcreate     0x03   /* create file */
#define SMBclose      0x04   /* close file */
#define SMBflush      0x05   /* flush file */
#define SMBunlink     0x06   /* delete file */
#define SMBmv         0x07   /* rename file */
#define SMBgetatr     0x08   /* get file attributes */
#define SMBsetatr     0x09   /* set file attributes */
#define SMBread       0x0A   /* read from file */
#define SMBwrite      0x0B   /* write to file */
#define SMBlock       0x0C   /* lock byte range */
#define SMBunlock     0x0D   /* unlock byte range */
#define SMBctemp      0x0E   /* create temporary file */
#define SMBmknew      0x0F   /* make new file */
#define SMBchkpth     0x10   /* check directory path */
#define SMBexit       0x11   /* process exit */
#define SMBlseek      0x12   /* seek */
#define SMBtcon       0x70   /* tree connect */
#define SMBtconX      0x75   /* tree connect and X*/
#define SMBtdis       0x71   /* tree disconnect */
#define SMBnegprot    0x72   /* negotiate protocol */
#define SMBdskattr    0x80   /* get disk attributes */
#define SMBsearch     0x81   /* search directory */
#define SMBsplopen    0xC0   /* open print spool file */
#define SMBsplwr      0xC1   /* write to print spool file */
#define SMBsplclose   0xC2   /* close print spool file */
#define SMBsplretq    0xC3   /* return print queue */
#define SMBsends      0xD0   /* send single block message */
#define SMBsendb      0xD1   /* send broadcast message */
#define SMBfwdname    0xD2   /* forward user name */
#define SMBcancelf    0xD3   /* cancel forward */
#define SMBgetmac     0xD4   /* get machine name */
#define SMBsendstrt   0xD5   /* send start of multi-block message */
#define SMBsendend    0xD6   /* send end of multi-block message */
#define SMBsendtxt    0xD7   /* send text of multi-block message */

/* Core+ protocol */
#define SMBlockread	  0x13   /* Lock a range and read */
#define SMBwriteunlock 0x14 /* Unlock a range then write */
#define SMBreadbraw   0x1a  /* read a block of data with no smb header */
#define SMBwritebraw  0x1d  /* write a block of data with no smb header */
#define SMBwritec     0x20  /* secondary write request */
#define SMBwriteclose 0x2c  /* write a file then close it */

/* dos extended protocol */
#define SMBreadBraw      0x1A   /* read block raw */
#define SMBreadBmpx      0x1B   /* read block multiplexed */
#define SMBreadBs        0x1C   /* read block (secondary response) */
#define SMBwriteBraw     0x1D   /* write block raw */
#define SMBwriteBmpx     0x1E   /* write block multiplexed */
#define SMBwriteBs       0x1F   /* write block (secondary request) */
#define SMBwriteC        0x20   /* write complete response */
#define SMBsetattrE      0x22   /* set file attributes expanded */
#define SMBgetattrE      0x23   /* get file attributes expanded */
#define SMBlockingX      0x24   /* lock/unlock byte ranges and X */
#define SMBtrans         0x25   /* transaction - name, bytes in/out */
#define SMBtranss        0x26   /* transaction (secondary request/response) */
#define SMBioctl         0x27   /* IOCTL */
#define SMBioctls        0x28   /* IOCTL  (secondary request/response) */
#define SMBcopy          0x29   /* copy */
#define SMBmove          0x2A   /* move */
#define SMBecho          0x2B   /* echo */
#define SMBopenX         0x2D   /* open and X */
#define SMBreadX         0x2E   /* read and X */
#define SMBwriteX        0x2F   /* write and X */
#define SMBsesssetupX    0x73   /* Session Set Up & X (including User Logon) */
#define SMBffirst        0x82   /* find first */
#define SMBfunique       0x83   /* find unique */
#define SMBfclose        0x84   /* find close */
#define SMBinvalid       0xFE   /* invalid command */

/* Extended 2.0 protocol */
#define SMBtrans2        0x32   /* TRANS2 protocol set */
#define SMBtranss2       0x33   /* TRANS2 protocol set, secondary command */
#define SMBfindclose     0x34   /* Terminate a TRANSACT2_FINDFIRST */
#define SMBfindnclose    0x35   /* Terminate a TRANSACT2_FINDNOTIFYFIRST */
#define SMBulogoffX      0x74   /* user logoff */


/* these are the TRANS2 sub commands */
#define TRANSACT2_OPEN          0
#define TRANSACT2_FINDFIRST     1
#define TRANSACT2_FINDNEXT      2
#define TRANSACT2_QFSINFO       3
#define TRANSACT2_SETFSINFO     4
#define TRANSACT2_QPATHINFO     5
#define TRANSACT2_SETPATHINFO   6
#define TRANSACT2_QFILEINFO     7
#define TRANSACT2_SETFILEINFO   8
#define TRANSACT2_FSCTL         9
#define TRANSACT2_IOCTL           10
#define TRANSACT2_FINDNOTIFYFIRST 11
#define TRANSACT2_FINDNOTIFYNEXT  12
#define TRANSACT2_MKDIR           13


/* these are the trans2 sub fields for primary requests */
#define smb_tpscnt smb_vwv0
#define smb_tdscnt smb_vwv1
#define smb_mprcnt smb_vwv2
#define smb_mdrcnt smb_vwv3
#define smb_msrcnt smb_vwv4
#define smb_flags smb_vwv5
#define smb_timeout smb_vwv6
#define smb_pscnt smb_vwv9
#define smb_psoff smb_vwv10
#define smb_dscnt smb_vwv11
#define smb_dsoff smb_vwv12
#define smb_suwcnt smb_vwv13
#define smb_setup smb_vwv14
#define smb_setup0 smb_setup
#define smb_setup1 (smb_setup+2)
#define smb_setup2 (smb_setup+4)

/* these are for the secondary requests */
#define smb_spscnt smb_vwv2
#define smb_spsoff smb_vwv3
#define smb_spsdisp smb_vwv4
#define smb_sdscnt smb_vwv5
#define smb_sdsoff smb_vwv6
#define smb_sdsdisp smb_vwv7
#define smb_sfid smb_vwv8

/* and these for responses */
#define smb_tprcnt smb_vwv0
#define smb_tdrcnt smb_vwv1
#define smb_prcnt smb_vwv3
#define smb_proff smb_vwv4
#define smb_prdisp smb_vwv5
#define smb_drcnt smb_vwv6
#define smb_droff smb_vwv7
#define smb_drdisp smb_vwv8

/* where to find the base of the SMB packet proper */
#define smb_base(buf) (((char *)(buf))+4)


#define SUCCESS 0    /* The request was successful. */
#define ERRDOS 0x01  /*  Error is from the core DOS operating system set. */
#define ERRSRV 0x02  /* Error is generated by the server network file manager.*/
#define ERRHRD 0x03  /* Error is an hardware error. */
#define ERRCMD 0xFF  /* Command was not in the "SMB" format. */

/* structure used to hold the incoming hosts info */
struct from_host {
    char   *name;			/* host name */
    char   *addr;			/* host address */
    struct sockaddr_in *sin;		/* their side of the link */
};

#define MAX_DGRAM_SIZE 576
#define MIN_DGRAM_SIZE 12

#define NMB_PORT 137
#define DGRAM_PORT 138
#define SMB_PORT 139

enum name_source {LMHOSTS, REGISTER, SELF, DNS, DNSFAIL};
enum node_type {B_NODE=0, P_NODE=1, M_NODE=2, NBDD_NODE=3};
enum packet_type {NMB_PACKET, DGRAM_PACKET};

/* a netbios name structure */
struct nmb_name {
  char name[17];
  char scope[64];
  int name_type;
};

/* a resource record */
struct res_rec {
  struct nmb_name rr_name;
  int rr_type;
  int rr_class;
  int ttl;
  int rdlength;
  char rdata[MAX_DGRAM_SIZE];
};

/* define a nmb packet. */
struct nmb_packet
{
  struct {
    int name_trn_id;
    int opcode;
    BOOL response;
    struct {
      BOOL bcast;
      BOOL recursion_available;
      BOOL recursion_desired;
      BOOL trunc;
      BOOL authoritative;
    } nm_flags;
    int rcode;
    int qdcount;
    int ancount;
    int nscount;
    int arcount;
  } header;

  struct {
    struct nmb_name question_name;
    int question_type;
    int question_class;
  } question;

  struct res_rec *answers;
  struct res_rec *nsrecs;
  struct res_rec *additional;
};

/* rfc1191 */
struct mtu_discovery {
	short unused;
	short nexthopmtu;
};

#define EXTRACT_SHORT(p)	((u_short)ntohs(*(u_short *)p))
#define EXTRACT_LONG(p)		(ntohl(*(u_int32 *)p))


/* pulled from tcpdump */
/* XXX probably should use getservbyname() and cache answers */
#define TFTP_PORT 69		/*XXX*/
#define NAMESERVER_PORT 53
#define KERBEROS_PORT 88	/*XXX*/
#define SUNRPC_PORT 111		/*XXX*/
#define SNMP_PORT 161		/*XXX*/
#define NTP_PORT 123		/*XXX*/
#define SNMPTRAP_PORT 162	/*XXX*/
#define RIP_PORT 520		/*XXX*/
#define KERBEROS_SEC_PORT 750	/*XXX*/


/* TICK_TIME in ms
 * time to wait between Read Requests
 * if no packet has been sniffed..
 */
#define TICK_TIME 10
#define OUR_IP	(gOurIP ? gOurIP : rkGetOurIP())
#define OUR_MAC (gOurMAC ? gOurMAC : rkGetOurMAC())
#define MAXHOSTNAMELEN	64	/* max length of hostname */

typedef struct _RIPDERM { 
	char *mBuf;
	int mLen;
} RIPDERM, *PRIPDERM;



//typedef list<PRIPDERM> VRIP;
//typedef list<char *> NAMELIST;
//typedef map<unsigned long, NAMELIST *> LMHOSTLIST;
//typedef map<unsigned long, __int64> MACMAP; /* note that masking is required */

//void SendThruFilterRaw(const char * p, int len);
//void SendHex(char *theAsciiString);
//void SendRaw(const char * theData, int theLen);