Head

GCC Code Coverage Report

Directory:	./		Exec	Total	Coverage
File:	usr.sbin/mopd/mopprobe/mopprobe.c	Lines:	0	122	0.0 %
Date:	2017-11-13	Branches:	0	88	0.0 %


/*	$OpenBSD: mopprobe.c,v 1.15 2015/02/09 23:00:14 deraadt Exp $ */

/*
 * Copyright (c) 1993-96 Mats O Jansson.  All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 *
 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */

/*
 * mopprobe - MOP Probe Utility
 *
 * Usage:	mopprobe [-3 | -4] [-aov] interface
 */

#include "os.h"
#include "common/common.h"
#include "common/mopdef.h"
#include "common/device.h"
#include "common/print.h"
#include "common/get.h"
#include "common/cmp.h"
#include "common/pf.h"
#include "common/nmadef.h"

/*
 * The list of all interfaces that are being listened to.
 */
struct if_info *iflist;

void   Usage(void);
void   mopProcess(struct if_info *, u_char *);

struct once {
	u_char	eaddr[6];		/* Ethernet addr */
	struct once *next;		/* Next one */
};

int     AllFlag = 0;		/* listen on "all" interfaces  */
int	Not3Flag = 0;		/* Not MOP V3 messages         */
int	Not4Flag = 0;		/* Not MOP V4 messages         */
int	VerboseFlag = 0;	/* Print All Announces	       */
int     OnceFlag = 0;		/* print only once             */
int	promisc = 1;		/* Need promisc mode           */
extern char *__progname;
struct once *root = NULL;

int
main(int argc, char *argv[])
{
	int     op;
	char   *interface;

	/* All error reporting is done through syslogs. */
	openlog(__progname, LOG_PID | LOG_CONS, LOG_DAEMON);

	opterr = 0;
	while ((op = getopt(argc, argv, "34aov")) != -1) {
		switch (op) {
		case '3':
			Not3Flag = 1;
			break;
		case '4':
			Not4Flag = 1;
			break;
		case 'a':
			AllFlag = 1;
			break;
		case 'o':
			OnceFlag = 1;
			break;
		case 'v':
			VerboseFlag = 1;
			break;
		default:
			Usage();
			/* NOTREACHED */
		}
	}
	interface = argv[optind++];

	if ((AllFlag && interface) ||
	    (!AllFlag && interface == 0) ||
	    (Not3Flag && Not4Flag))
		Usage();

	if (AllFlag)
 		deviceInitAll();
	else
		deviceInitOne(interface);

	Loop();
	/* NOTREACHED */
}

void
Usage()
{
	fprintf(stderr, "usage: %s [-3 | -4] [-aov] interface\n", __progname);
	exit(1);
}

/*
 * Process incoming packages.
 */
void
mopProcess(struct if_info *ii, u_char *pkt)
{
	u_char	*dst, *src, mopcode, tmpc, device, ilen;
	u_short	 ptype, moplen = 0, itype;
	int	 idx, trans, len, i, hwa = 0;
	struct once *o = NULL;

	/* We don't known with transport, Guess! */

	trans = mopGetTrans(pkt, 0);

	/* Ok, return if we don't wan't this message */

	if ((trans == TRANS_ETHER) && Not3Flag) return;
	if ((trans == TRANS_8023) && Not4Flag)	return;

	idx = 0;
	mopGetHeader(pkt, &idx, &dst, &src, &ptype, &len, trans);

	/* Ignore our own transmissions */

	if (mopCmpEAddr(ii->eaddr,src) == 0)
		return;

	/* Just check multicast */

	if (mopCmpEAddr(rc_mcst,dst) != 0) {
		return;
	}

	switch(ptype) {
	case MOP_K_PROTO_RC:
		break;
	default:
		return;
	}

	if (OnceFlag) {
		o = root;
		while (o != NULL) {
			if (mopCmpEAddr(o->eaddr,src) == 0)
				return;
			o = o->next;
		}
		o = (struct once *)malloc(sizeof(*o));
		o->eaddr[0] = src[0];
		o->eaddr[1] = src[1];
		o->eaddr[2] = src[2];
		o->eaddr[3] = src[3];
		o->eaddr[4] = src[4];
		o->eaddr[5] = src[5];
		o->next = root;
		root = o;
	}

	moplen  = mopGetLength(pkt, trans);
	mopcode	= mopGetChar(pkt,&idx);

	/* Just process System Information */

	if (mopcode != MOP_K_CODE_SID) {
		return;
	}

	mopGetChar(pkt,&idx);			/* Reserved */
	mopGetShort(pkt,&idx);			/* Receipt # */

	device = 0;

	switch(trans) {
	case TRANS_ETHER:
		moplen = moplen + 16;
		break;
	case TRANS_8023:
		moplen = moplen + 14;
		break;
	}

	itype = mopGetShort(pkt,&idx);

	while (idx < (int)(moplen)) {
		ilen  = mopGetChar(pkt,&idx);
		switch (itype) {
		case 0:
			tmpc  = mopGetChar(pkt,&idx);
			idx = idx + tmpc;
			break;
		case MOP_K_INFO_VER:
			idx = idx + 3;
			break;
		case MOP_K_INFO_MFCT:
		case MOP_K_INFO_RTM:
		case MOP_K_INFO_CSZ:
		case MOP_K_INFO_RSZ:
			idx = idx + 2;
			break;
		case MOP_K_INFO_HWA:
			hwa = idx;
			/* FALLTHROUGH */
		case MOP_K_INFO_CNU:
			idx = idx + 6;
			break;
		case MOP_K_INFO_TIME:
			idx = idx + 10;
			break;
	        case MOP_K_INFO_SOFD:
			device = mopGetChar(pkt,&idx);
			if (VerboseFlag &&
			    (device != NMA_C_SOFD_LCS) &&   /* DECserver 100 */
			    (device != NMA_C_SOFD_DS2) &&   /* DECserver 200 */
			    (device != NMA_C_SOFD_DP2) &&   /* DECserver 250 */
			    (device != NMA_C_SOFD_DS3))     /* DECserver 300 */
			{
				mopPrintHWA(stdout, src);
				fprintf(stdout," # ");
				mopPrintDevice(stdout, device);
				fprintf(stdout," ");
				mopPrintHWA(stdout, &pkt[hwa]);
				fprintf(stdout,"\n");
			}
			break;
		case MOP_K_INFO_SFID:
			tmpc = mopGetChar(pkt,&idx);
			if ((tmpc > 0) && (tmpc < 17))
				idx = idx + tmpc;
			break;
		case MOP_K_INFO_PRTY:
			idx = idx + 1;
			break;
		case MOP_K_INFO_DLTY:
			idx = idx + 1;
			break;
	        case MOP_K_INFO_DLBSZ:
			idx = idx + 2;
			break;
		default:
			if (((device == NMA_C_SOFD_LCS) ||  /* DECserver 100 */
			     (device == NMA_C_SOFD_DS2) ||  /* DECserver 200 */
			     (device == NMA_C_SOFD_DP2) ||  /* DECserver 250 */
			     (device == NMA_C_SOFD_DS3)) && /* DECserver 300 */
			    ((itype > 101) && (itype < 107)))
			{
				switch (itype) {
				case 102:
				case 103:
				case 106:
					idx = idx + ilen;
					break;
				case 104:
					idx = idx + 2;
					break;
				case 105:
					mopPrintHWA(stdout, src);
					fprintf(stdout," ");
					for (i = 0; i < ilen; i++) {
						fprintf(stdout, "%c",pkt[idx+i]);
					}
					idx = idx + ilen;
					fprintf(stdout, "\n");
					break;
				};
			} else {
				idx = idx + ilen;
			};
		}
		itype = mopGetShort(pkt,&idx);
	}
}


Generated by: GCOVR (Version 3.3)

Line	Branch	Exec	Source
1			/* $OpenBSD: mopprobe.c,v 1.15 2015/02/09 23:00:14 deraadt Exp $ */
2
3			/*
4			* Copyright (c) 1993-96 Mats O Jansson. All rights reserved.
5			*
6			* Redistribution and use in source and binary forms, with or without
7			* modification, are permitted provided that the following conditions
8			* are met:
9			* 1. Redistributions of source code must retain the above copyright
10			* notice, this list of conditions and the following disclaimer.
11			* 2. Redistributions in binary form must reproduce the above copyright
12			* notice, this list of conditions and the following disclaimer in the
13			* documentation and/or other materials provided with the distribution.
14			*
15			* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
16			* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
17			* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
18			* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
19			* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
20			* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
21			* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
22			* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
23			* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
24			* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
25			*/
26
27			/*
28			* mopprobe - MOP Probe Utility
29			*
30			* Usage: mopprobe [-3 \| -4] [-aov] interface
31			*/
32
33			#include "os.h"
34			#include "common/common.h"
35			#include "common/mopdef.h"
36			#include "common/device.h"
37			#include "common/print.h"
38			#include "common/get.h"
39			#include "common/cmp.h"
40			#include "common/pf.h"
41			#include "common/nmadef.h"
42
43			/*
44			* The list of all interfaces that are being listened to.
45			*/
46			struct if_info *iflist;
47
48			void Usage(void);
49			void mopProcess(struct if_info , u_char );
50
51			struct once {
52			u_char eaddr[6]; /* Ethernet addr */
53			struct once next; / Next one */
54			};
55
56			int AllFlag = 0; /* listen on "all" interfaces */
57			int Not3Flag = 0; /* Not MOP V3 messages */
58			int Not4Flag = 0; /* Not MOP V4 messages */
59			int VerboseFlag = 0; /* Print All Announces */
60			int OnceFlag = 0; /* print only once */
61			int promisc = 1; /* Need promisc mode */
62			extern char *__progname;
63			struct once *root = NULL;
64
65			int
66			main(int argc, char *argv[])
67			{
68			int op;
69			char *interface;
70
71			/* All error reporting is done through syslogs. */
72			openlog(__progname, LOG_PID \| LOG_CONS, LOG_DAEMON);
73
74			opterr = 0;
75			while ((op = getopt(argc, argv, "34aov")) != -1) {
76			switch (op) {
77			case '3':
78			Not3Flag = 1;
79			break;
80			case '4':
81			Not4Flag = 1;
82			break;
83			case 'a':
84			AllFlag = 1;
85			break;
86			case 'o':
87			OnceFlag = 1;
88			break;
89			case 'v':
90			VerboseFlag = 1;
91			break;
92			default:
93			Usage();
94			/* NOTREACHED */
95			}
96			}
97			interface = argv[optind++];
98
99			if ((AllFlag && interface) \|\|
100			(!AllFlag && interface == 0) \|\|
101			(Not3Flag && Not4Flag))
102			Usage();
103
104			if (AllFlag)
105			deviceInitAll();
106			else
107			deviceInitOne(interface);
108
109			Loop();
110			/* NOTREACHED */
111			}
112
113			void
114			Usage()
115			{
116			fprintf(stderr, "usage: %s [-3 \| -4] [-aov] interface\n", __progname);
117			exit(1);
118			}
119
120			/*
121			* Process incoming packages.
122			*/
123			void
124			mopProcess(struct if_info ii, u_char pkt)
125			{
126			u_char dst, src, mopcode, tmpc, device, ilen;
127			u_short ptype, moplen = 0, itype;
128			int idx, trans, len, i, hwa = 0;
129			struct once *o = NULL;
130
131			/* We don't known with transport, Guess! */
132
133			trans = mopGetTrans(pkt, 0);
134
135			/* Ok, return if we don't wan't this message */
136
137			if ((trans == TRANS_ETHER) && Not3Flag) return;
138			if ((trans == TRANS_8023) && Not4Flag) return;
139
140			idx = 0;
141			mopGetHeader(pkt, &idx, &dst, &src, &ptype, &len, trans);
142
143			/* Ignore our own transmissions */
144
145			if (mopCmpEAddr(ii->eaddr,src) == 0)
146			return;
147
148			/* Just check multicast */
149
150			if (mopCmpEAddr(rc_mcst,dst) != 0) {
151			return;
152			}
153
154			switch(ptype) {
155			case MOP_K_PROTO_RC:
156			break;
157			default:
158			return;
159			}
160
161			if (OnceFlag) {
162			o = root;
163			while (o != NULL) {
164			if (mopCmpEAddr(o->eaddr,src) == 0)
165			return;
166			o = o->next;
167			}
168			o = (struct once )malloc(sizeof(o));
169			o->eaddr[0] = src[0];
170			o->eaddr[1] = src[1];
171			o->eaddr[2] = src[2];
172			o->eaddr[3] = src[3];
173			o->eaddr[4] = src[4];
174			o->eaddr[5] = src[5];
175			o->next = root;
176			root = o;
177			}
178
179			moplen = mopGetLength(pkt, trans);
180			mopcode = mopGetChar(pkt,&idx);
181
182			/* Just process System Information */
183
184			if (mopcode != MOP_K_CODE_SID) {
185			return;
186			}
187
188			mopGetChar(pkt,&idx); /* Reserved */
189			mopGetShort(pkt,&idx); /* Receipt # */
190
191			device = 0;
192
193			switch(trans) {
194			case TRANS_ETHER:
195			moplen = moplen + 16;
196			break;
197			case TRANS_8023:
198			moplen = moplen + 14;
199			break;
200			}
201
202			itype = mopGetShort(pkt,&idx);
203
204			while (idx < (int)(moplen)) {
205			ilen = mopGetChar(pkt,&idx);
206			switch (itype) {
207			case 0:
208			tmpc = mopGetChar(pkt,&idx);
209			idx = idx + tmpc;
210			break;
211			case MOP_K_INFO_VER:
212			idx = idx + 3;
213			break;
214			case MOP_K_INFO_MFCT:
215			case MOP_K_INFO_RTM:
216			case MOP_K_INFO_CSZ:
217			case MOP_K_INFO_RSZ:
218			idx = idx + 2;
219			break;
220			case MOP_K_INFO_HWA:
221			hwa = idx;
222			/* FALLTHROUGH */
223			case MOP_K_INFO_CNU:
224			idx = idx + 6;
225			break;
226			case MOP_K_INFO_TIME:
227			idx = idx + 10;
228			break;
229			case MOP_K_INFO_SOFD:
230			device = mopGetChar(pkt,&idx);
231			if (VerboseFlag &&
232			(device != NMA_C_SOFD_LCS) && /* DECserver 100 */
233			(device != NMA_C_SOFD_DS2) && /* DECserver 200 */
234			(device != NMA_C_SOFD_DP2) && /* DECserver 250 */
235			(device != NMA_C_SOFD_DS3)) /* DECserver 300 */
236			{
237			mopPrintHWA(stdout, src);
238			fprintf(stdout," # ");
239			mopPrintDevice(stdout, device);
240			fprintf(stdout," ");
241			mopPrintHWA(stdout, &pkt[hwa]);
242			fprintf(stdout,"\n");
243			}
244			break;
245			case MOP_K_INFO_SFID:
246			tmpc = mopGetChar(pkt,&idx);
247			if ((tmpc > 0) && (tmpc < 17))
248			idx = idx + tmpc;
249			break;
250			case MOP_K_INFO_PRTY:
251			idx = idx + 1;
252			break;
253			case MOP_K_INFO_DLTY:
254			idx = idx + 1;
255			break;
256			case MOP_K_INFO_DLBSZ:
257			idx = idx + 2;
258			break;
259			default:
260			if (((device == NMA_C_SOFD_LCS) \|\| /* DECserver 100 */
261			(device == NMA_C_SOFD_DS2) \|\| /* DECserver 200 */
262			(device == NMA_C_SOFD_DP2) \|\| /* DECserver 250 */
263			(device == NMA_C_SOFD_DS3)) && /* DECserver 300 */
264			((itype > 101) && (itype < 107)))
265			{
266			switch (itype) {
267			case 102:
268			case 103:
269			case 106:
270			idx = idx + ilen;
271			break;
272			case 104:
273			idx = idx + 2;
274			break;
275			case 105:
276			mopPrintHWA(stdout, src);
277			fprintf(stdout," ");
278			for (i = 0; i < ilen; i++) {
279			fprintf(stdout, "%c",pkt[idx+i]);
280			}
281			idx = idx + ilen;
282			fprintf(stdout, "\n");
283			break;
284			};
285			} else {
286			idx = idx + ilen;
287			};
288			}
289			itype = mopGetShort(pkt,&idx);
290			}
291			}