[dragonfly.git] / contrib / tcpdump / print-atm.c

/*
 * Copyright (c) 1994, 1995, 1996, 1997
 *	The Regents of the University of California.  All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that: (1) source code distributions
 * retain the above copyright notice and this paragraph in its entirety, (2)
 * distributions including binary code include the above copyright notice and
 * this paragraph in its entirety in the documentation or other materials
 * provided with the distribution, and (3) all advertising materials mentioning
 * features or use of this software display the following acknowledgement:
 * ``This product includes software developed by the University of California,
 * Lawrence Berkeley Laboratory and its contributors.'' Neither the name of
 * the University nor the names of its contributors may be used to endorse
 * or promote products derived from this software without specific prior
 * written permission.
 * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR IMPLIED
 * WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF
 * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
 */
#ifndef lint
static const char rcsid[] _U_ =
    "@(#) $Header: /tcpdump/master/tcpdump/print-atm.c,v 1.38.2.6 2006/01/25 13:27:24 hannes Exp $ (LBL)";
#endif

#ifdef HAVE_CONFIG_H
#include "config.h"
#endif

#include <tcpdump-stdinc.h>

#include <stdio.h>
#include <pcap.h>
#include <string.h>

#include "interface.h"
#include "extract.h"
#include "addrtoname.h"
#include "ethertype.h"
#include "atm.h"
#include "atmuni31.h"
#include "llc.h"

#include "ether.h"

struct tok oam_f_values[] = {
    { OAMF4SC, "OAM F4 (segment)" },
    { OAMF4EC, "OAM F4 (end)" },
    { 0, NULL }
};

struct tok oam_celltype_values[] = {
    { 0x1, "Fault Management" },
    { 0x2, "Performance Management" },
    { 0x8, "activate/deactivate" },
    { 0xf, "System Management" },
    { 0, NULL }
};

struct tok oam_fm_functype_values[] = {
    { 0x0, "AIS" },
    { 0x1, "RDI" },
    { 0x4, "Continuity Check" },
    { 0x8, "Loopback" },
    { 0, NULL }
};

struct tok oam_pm_functype_values[] = {
    { 0x0, "Forward Monitoring" },
    { 0x1, "Backward Reporting" },
    { 0x2, "Monitoring and Reporting" },
    { 0, NULL }
};

struct tok oam_ad_functype_values[] = {
    { 0x0, "Performance Monitoring" },
    { 0x1, "Continuity Check" },
    { 0, NULL }
};

static const struct tok *oam_functype_values[16] = {
    NULL,
    oam_fm_functype_values, /* 1 */
    oam_pm_functype_values, /* 2 */
    NULL,
    NULL,
    NULL,
    NULL,
    NULL,
    oam_ad_functype_values, /* 8 */
    NULL,
    NULL,
    NULL,
    NULL,
    NULL,
    NULL,
    NULL
};

/*
 * Print an RFC 1483 LLC-encapsulated ATM frame.
 */
static void
atm_llc_print(const u_char *p, int length, int caplen)
{
	u_short extracted_ethertype;

	if (!llc_print(p, length, caplen, NULL, NULL,
	    &extracted_ethertype)) {
		/* ether_type not known, print raw packet */
		if (extracted_ethertype) {
			printf("(LLC %s) ",
		etherproto_string(htons(extracted_ethertype)));
		}
		if (!suppress_default_print)
			default_print(p, caplen);
	}
}

/*
 * Given a SAP value, generate the LLC header value for a UI packet
 * with that SAP as the source and destination SAP.
 */
#define LLC_UI_HDR(sap)	((sap)<<16 | (sap<<8) | 0x03)

/*
 * This is the top level routine of the printer.  'p' points
 * to the LLC/SNAP header of the packet, 'h->ts' is the timestamp,
 * 'h->len' is the length of the packet off the wire, and 'h->caplen'
 * is the number of bytes actually captured.
 */
u_int
atm_if_print(const struct pcap_pkthdr *h, const u_char *p)
{
	u_int caplen = h->caplen;
	u_int length = h->len;
	u_int32_t llchdr;
	u_int hdrlen = 0;

	if (caplen < 8) {
		printf("[|atm]");
		return (caplen);
	}

        /* Cisco Style NLPID ? */
        if (*p == LLC_UI) {
            if (eflag)
                printf("CNLPID ");
            isoclns_print(p+1, length-1, caplen-1);
            return hdrlen;
        }

	/*
	 * Extract the presumed LLC header into a variable, for quick
	 * testing.
	 * Then check for a header that's neither a header for a SNAP
	 * packet nor an RFC 2684 routed NLPID-formatted PDU nor
	 * an 802.2-but-no-SNAP IP packet.
	 */
	llchdr = EXTRACT_24BITS(p);
	if (llchdr != LLC_UI_HDR(LLCSAP_SNAP) &&
	    llchdr != LLC_UI_HDR(LLCSAP_ISONS) &&
	    llchdr != LLC_UI_HDR(LLCSAP_IP)) {
		/*
		 * XXX - assume 802.6 MAC header from Fore driver.
		 *
		 * Unfortunately, the above list doesn't check for
		 * all known SAPs, doesn't check for headers where
		 * the source and destination SAP aren't the same,
		 * and doesn't check for non-UI frames.  It also
		 * runs the risk of an 802.6 MAC header that happens
		 * to begin with one of those values being
		 * incorrectly treated as an 802.2 header.
		 *
		 * So is that Fore driver still around?  And, if so,
		 * is it still putting 802.6 MAC headers on ATM
		 * packets?  If so, could it be changed to use a
		 * new DLT_IEEE802_6 value if we added it?
		 */
		if (eflag)
			printf("%08x%08x %08x%08x ",
			       EXTRACT_32BITS(p),
			       EXTRACT_32BITS(p+4),
			       EXTRACT_32BITS(p+8),
			       EXTRACT_32BITS(p+12));
		p += 20;
		length -= 20;
		caplen -= 20;
		hdrlen += 20;
	}
	atm_llc_print(p, length, caplen);
	return (hdrlen);
}

/*
 * ATM signalling.
 */
static struct tok msgtype2str[] = {
	{ CALL_PROCEED,		"Call_proceeding" },
	{ CONNECT,		"Connect" },
	{ CONNECT_ACK,		"Connect_ack" },
	{ SETUP,		"Setup" },
	{ RELEASE,		"Release" },
	{ RELEASE_DONE,		"Release_complete" },
	{ RESTART,		"Restart" },
	{ RESTART_ACK,		"Restart_ack" },
	{ STATUS,		"Status" },
	{ STATUS_ENQ,		"Status_enquiry" },
	{ ADD_PARTY,		"Add_party" },
	{ ADD_PARTY_ACK,	"Add_party_ack" },
	{ ADD_PARTY_REJ,	"Add_party_reject" },
	{ DROP_PARTY,		"Drop_party" },
	{ DROP_PARTY_ACK,	"Drop_party_ack" },
	{ 0,			NULL }
};

static void
sig_print(const u_char *p, int caplen)
{
	bpf_u_int32 call_ref;

	if (caplen < PROTO_POS) {
		printf("[|atm]");
		return;
	}
	if (p[PROTO_POS] == Q2931) {
		/*
		 * protocol:Q.2931 for User to Network Interface 
		 * (UNI 3.1) signalling
		 */
		printf("Q.2931");
		if (caplen < MSG_TYPE_POS) {
			printf(" [|atm]");
			return;
		}
		printf(":%s ",
		    tok2str(msgtype2str, "msgtype#%d", p[MSG_TYPE_POS]));

		if (caplen < CALL_REF_POS+3) {
			printf("[|atm]");
			return;
		}
		call_ref = EXTRACT_24BITS(&p[CALL_REF_POS]);
		printf("CALL_REF:0x%06x", call_ref);
	} else {
		/* SCCOP with some unknown protocol atop it */
		printf("SSCOP, proto %d ", p[PROTO_POS]);
	}
}

/*
 * Print an ATM PDU (such as an AAL5 PDU).
 */
void
atm_print(u_int vpi, u_int vci, u_int traftype, const u_char *p, u_int length,
    u_int caplen)
{
	if (eflag)
		printf("VPI:%u VCI:%u ", vpi, vci);

	if (vpi == 0) {
		switch (vci) {

		case PPC:
			sig_print(p, caplen);
			return;

		case BCC:
			printf("broadcast sig: ");
			return;

		case OAMF4SC: /* fall through */
		case OAMF4EC:
                        oam_print(p, length, ATM_OAM_HEC);
			return;

		case METAC:
			printf("meta: ");
			return;

		case ILMIC:
			printf("ilmi: ");
			snmp_print(p, length);
			return;
		}
	}

	switch (traftype) {

	case ATM_LLC:
	default:
		/*
		 * Assumes traffic is LLC if unknown.
		 */
		atm_llc_print(p, length, caplen);
		break;

	case ATM_LANE:
		lane_print(p, length, caplen);
		break;
	}
}

int 
oam_print (const u_char *p, u_int length, u_int hec) {

    u_int32_t cell_header;
    u_int16_t cell_type, func_type,vpi,vci,payload,clp;

    cell_header = EXTRACT_32BITS(p+hec);
    cell_type = ((*(p+4+hec))>>4) & 0x0f;
    func_type = *(p+4+hec) & 0x0f;

    vpi = (cell_header>>20)&0xff;
    vci = (cell_header>>4)&0xffff;
    payload = (cell_header>>1)&0x7;
    clp = cell_header&0x1;

    printf("%s, vpi %u, vci %u, payload %u, clp %u, ",
           tok2str(oam_f_values, "OAM F5", vci),
           vpi, vci, payload, clp);

    printf("cell-type %s (%u)",
           tok2str(oam_celltype_values, "unknown", cell_type),
           cell_type);

    if (oam_functype_values[cell_type] == NULL)
        printf(", func-type unknown (%u)", func_type);
    else
        printf(", func-type %s (%u)",
               bittok2str(oam_functype_values[cell_type],"none",func_type),
               func_type);

    printf(", length %u",length);
    return 1;
}
Commit	Line	Data
c8cf0f94 PA	1	/*
	2	* Copyright (c) 1994, 1995, 1996, 1997
	3	* The Regents of the University of California. All rights reserved.
	4	*
	5	* Redistribution and use in source and binary forms, with or without
	6	* modification, are permitted provided that: (1) source code distributions
	7	* retain the above copyright notice and this paragraph in its entirety, (2)
	8	* distributions including binary code include the above copyright notice and
	9	* this paragraph in its entirety in the documentation or other materials
	10	* provided with the distribution, and (3) all advertising materials mentioning
	11	* features or use of this software display the following acknowledgement:
	12	* ``This product includes software developed by the University of California,
	13	* Lawrence Berkeley Laboratory and its contributors.'' Neither the name of
	14	* the University nor the names of its contributors may be used to endorse
	15	* or promote products derived from this software without specific prior
	16	* written permission.
	17	* THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR IMPLIED
	18	* WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF
	19	* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
	20	*/
	21	#ifndef lint
	22	static const char rcsid[] _U_ =
	23	"@(#) $Header: /tcpdump/master/tcpdump/print-atm.c,v 1.38.2.6 2006/01/25 13:27:24 hannes Exp $ (LBL)";
	24	#endif
	25
	26	#ifdef HAVE_CONFIG_H
	27	#include "config.h"
	28	#endif
	29
	30	#include <tcpdump-stdinc.h>
	31
	32	#include <stdio.h>
	33	#include <pcap.h>
	34	#include <string.h>
	35
	36	#include "interface.h"
	37	#include "extract.h"
	38	#include "addrtoname.h"
	39	#include "ethertype.h"
	40	#include "atm.h"
	41	#include "atmuni31.h"
	42	#include "llc.h"
	43
	44	#include "ether.h"
	45
	46	struct tok oam_f_values[] = {
	47	{ OAMF4SC, "OAM F4 (segment)" },
	48	{ OAMF4EC, "OAM F4 (end)" },
	49	{ 0, NULL }
	50	};
	51
	52	struct tok oam_celltype_values[] = {
	53	{ 0x1, "Fault Management" },
	54	{ 0x2, "Performance Management" },
	55	{ 0x8, "activate/deactivate" },
	56	{ 0xf, "System Management" },
	57	{ 0, NULL }
	58	};
	59
	60	struct tok oam_fm_functype_values[] = {
	61	{ 0x0, "AIS" },
	62	{ 0x1, "RDI" },
	63	{ 0x4, "Continuity Check" },
	64	{ 0x8, "Loopback" },
65	{ 0, NULL }
66	};
67
68	struct tok oam_pm_functype_values[] = {
69	{ 0x0, "Forward Monitoring" },
70	{ 0x1, "Backward Reporting" },
71	{ 0x2, "Monitoring and Reporting" },
72	{ 0, NULL }
73	};
74
75	struct tok oam_ad_functype_values[] = {
76	{ 0x0, "Performance Monitoring" },
77	{ 0x1, "Continuity Check" },
78	{ 0, NULL }
79	};
80
81	static const struct tok *oam_functype_values[16] = {
82	NULL,
83	oam_fm_functype_values, /* 1 */
84	oam_pm_functype_values, /* 2 */
85	NULL,
86	NULL,
87	NULL,
88	NULL,
89	NULL,
90	oam_ad_functype_values, /* 8 */
91	NULL,
92	NULL,
93	NULL,
94	NULL,
95	NULL,
96	NULL,
97	NULL
98	};
99
100	/*
101	* Print an RFC 1483 LLC-encapsulated ATM frame.
102	*/
103	static void
104	atm_llc_print(const u_char *p, int length, int caplen)
105	{
106	u_short extracted_ethertype;
107
108	if (!llc_print(p, length, caplen, NULL, NULL,
109	&extracted_ethertype)) {
110	/* ether_type not known, print raw packet */
111	if (extracted_ethertype) {
112	printf("(LLC %s) ",
113	etherproto_string(htons(extracted_ethertype)));
114	}
115	if (!suppress_default_print)
116	default_print(p, caplen);
117	}
118	}
119
120	/*
121	* Given a SAP value, generate the LLC header value for a UI packet
122	* with that SAP as the source and destination SAP.
123	*/
124	#define LLC_UI_HDR(sap) ((sap)<<16 \| (sap<<8) \| 0x03)
125
126	/*
127	* This is the top level routine of the printer. 'p' points
128	* to the LLC/SNAP header of the packet, 'h->ts' is the timestamp,
129	* 'h->len' is the length of the packet off the wire, and 'h->caplen'
130	* is the number of bytes actually captured.
131	*/
132	u_int
133	atm_if_print(const struct pcap_pkthdr h, const u_char p)
134	{
135	u_int caplen = h->caplen;
136	u_int length = h->len;
137	u_int32_t llchdr;
138	u_int hdrlen = 0;
139
140	if (caplen < 8) {
141	printf("[\|atm]");
142	return (caplen);
143	}
144
145	/* Cisco Style NLPID ? */
146	if (*p == LLC_UI) {
147	if (eflag)
148	printf("CNLPID ");
149	isoclns_print(p+1, length-1, caplen-1);
150	return hdrlen;
151	}
152
153	/*
154	* Extract the presumed LLC header into a variable, for quick
155	* testing.
156	* Then check for a header that's neither a header for a SNAP
157	* packet nor an RFC 2684 routed NLPID-formatted PDU nor
158	* an 802.2-but-no-SNAP IP packet.
159	*/
160	llchdr = EXTRACT_24BITS(p);
161	if (llchdr != LLC_UI_HDR(LLCSAP_SNAP) &&
162	llchdr != LLC_UI_HDR(LLCSAP_ISONS) &&
163	llchdr != LLC_UI_HDR(LLCSAP_IP)) {
164	/*
165	* XXX - assume 802.6 MAC header from Fore driver.
166	*
167	* Unfortunately, the above list doesn't check for
168	* all known SAPs, doesn't check for headers where
169	* the source and destination SAP aren't the same,
170	* and doesn't check for non-UI frames. It also
171	* runs the risk of an 802.6 MAC header that happens
172	* to begin with one of those values being
173	* incorrectly treated as an 802.2 header.
174	*
175	* So is that Fore driver still around? And, if so,
176	* is it still putting 802.6 MAC headers on ATM
177	* packets? If so, could it be changed to use a
178	* new DLT_IEEE802_6 value if we added it?
179	*/
180	if (eflag)
181	printf("%08x%08x %08x%08x ",
182	EXTRACT_32BITS(p),
183	EXTRACT_32BITS(p+4),
184	EXTRACT_32BITS(p+8),
185	EXTRACT_32BITS(p+12));
186	p += 20;
187	length -= 20;
188	caplen -= 20;
189	hdrlen += 20;
190	}
191	atm_llc_print(p, length, caplen);
192	return (hdrlen);
193	}
194
195	/*
196	* ATM signalling.
197	*/
198	static struct tok msgtype2str[] = {
199	{ CALL_PROCEED, "Call_proceeding" },
200	{ CONNECT, "Connect" },
201	{ CONNECT_ACK, "Connect_ack" },
202	{ SETUP, "Setup" },
203	{ RELEASE, "Release" },
204	{ RELEASE_DONE, "Release_complete" },
205	{ RESTART, "Restart" },
206	{ RESTART_ACK, "Restart_ack" },
207	{ STATUS, "Status" },
208	{ STATUS_ENQ, "Status_enquiry" },
209	{ ADD_PARTY, "Add_party" },
210	{ ADD_PARTY_ACK, "Add_party_ack" },
211	{ ADD_PARTY_REJ, "Add_party_reject" },
212	{ DROP_PARTY, "Drop_party" },
213	{ DROP_PARTY_ACK, "Drop_party_ack" },
214	{ 0, NULL }
215	};
216
217	static void
218	sig_print(const u_char *p, int caplen)
219	{
220	bpf_u_int32 call_ref;
221
222	if (caplen < PROTO_POS) {
223	printf("[\|atm]");
224	return;
225	}
226	if (p[PROTO_POS] == Q2931) {
227	/*
228	* protocol:Q.2931 for User to Network Interface
229	* (UNI 3.1) signalling
230	*/
231	printf("Q.2931");
232	if (caplen < MSG_TYPE_POS) {
233	printf(" [\|atm]");
234	return;
235	}
236	printf(":%s ",
237	tok2str(msgtype2str, "msgtype#%d", p[MSG_TYPE_POS]));
238
239	if (caplen < CALL_REF_POS+3) {
240	printf("[\|atm]");
241	return;
242	}
243	call_ref = EXTRACT_24BITS(&p[CALL_REF_POS]);
244	printf("CALL_REF:0x%06x", call_ref);
245	} else {
246	/* SCCOP with some unknown protocol atop it */
247	printf("SSCOP, proto %d ", p[PROTO_POS]);
248	}
249	}
250
251	/*
252	* Print an ATM PDU (such as an AAL5 PDU).
253	*/
254	void
255	atm_print(u_int vpi, u_int vci, u_int traftype, const u_char *p, u_int length,
256	u_int caplen)
257	{
258	if (eflag)
259	printf("VPI:%u VCI:%u ", vpi, vci);
260
261	if (vpi == 0) {
262	switch (vci) {
263
264	case PPC:
265	sig_print(p, caplen);
266	return;
267
268	case BCC:
269	printf("broadcast sig: ");
270	return;
271
272	case OAMF4SC: /* fall through */
273	case OAMF4EC:
274	oam_print(p, length, ATM_OAM_HEC);
275	return;
276
277	case METAC:
278	printf("meta: ");
279	return;
280
281	case ILMIC:
282	printf("ilmi: ");
283	snmp_print(p, length);
284	return;
285	}
286	}
287
288	switch (traftype) {
289
290	case ATM_LLC:
291	default:
292	/*
293	* Assumes traffic is LLC if unknown.
294	*/
295	atm_llc_print(p, length, caplen);
296	break;
297
298	case ATM_LANE:
299	lane_print(p, length, caplen);
300	break;
301	}
302	}
303
304	int
305	oam_print (const u_char *p, u_int length, u_int hec) {
306
307	u_int32_t cell_header;
308	u_int16_t cell_type, func_type,vpi,vci,payload,clp;
309
310	cell_header = EXTRACT_32BITS(p+hec);
311	cell_type = ((*(p+4+hec))>>4) & 0x0f;
312	func_type = *(p+4+hec) & 0x0f;
313
314	vpi = (cell_header>>20)&0xff;
315	vci = (cell_header>>4)&0xffff;
316	payload = (cell_header>>1)&0x7;
317	clp = cell_header&0x1;
318
319	printf("%s, vpi %u, vci %u, payload %u, clp %u, ",
320	tok2str(oam_f_values, "OAM F5", vci),
321	vpi, vci, payload, clp);
322
323	printf("cell-type %s (%u)",
324	tok2str(oam_celltype_values, "unknown", cell_type),
325	cell_type);
326
327	if (oam_functype_values[cell_type] == NULL)
328	printf(", func-type unknown (%u)", func_type);
329	else
330	printf(", func-type %s (%u)",
331	bittok2str(oam_functype_values[cell_type],"none",func_type),
332	func_type);
333
334	printf(", length %u",length);
335	return 1;
336	}