1*7c478bd9Sstevel@tonic-gate /*
2*7c478bd9Sstevel@tonic-gate * CDDL HEADER START
3*7c478bd9Sstevel@tonic-gate *
4*7c478bd9Sstevel@tonic-gate * The contents of this file are subject to the terms of the
5*7c478bd9Sstevel@tonic-gate * Common Development and Distribution License, Version 1.0 only
6*7c478bd9Sstevel@tonic-gate * (the "License"). You may not use this file except in compliance
7*7c478bd9Sstevel@tonic-gate * with the License.
8*7c478bd9Sstevel@tonic-gate *
9*7c478bd9Sstevel@tonic-gate * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
10*7c478bd9Sstevel@tonic-gate * or http://www.opensolaris.org/os/licensing.
11*7c478bd9Sstevel@tonic-gate * See the License for the specific language governing permissions
12*7c478bd9Sstevel@tonic-gate * and limitations under the License.
13*7c478bd9Sstevel@tonic-gate *
14*7c478bd9Sstevel@tonic-gate * When distributing Covered Code, include this CDDL HEADER in each
15*7c478bd9Sstevel@tonic-gate * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
16*7c478bd9Sstevel@tonic-gate * If applicable, add the following below this CDDL HEADER, with the
17*7c478bd9Sstevel@tonic-gate * fields enclosed by brackets "[]" replaced with your own identifying
18*7c478bd9Sstevel@tonic-gate * information: Portions Copyright [yyyy] [name of copyright owner]
19*7c478bd9Sstevel@tonic-gate *
20*7c478bd9Sstevel@tonic-gate * CDDL HEADER END
21*7c478bd9Sstevel@tonic-gate */
22*7c478bd9Sstevel@tonic-gate /*
23*7c478bd9Sstevel@tonic-gate * Copyright (c) 2001 by Sun Microsystems, Inc.
24*7c478bd9Sstevel@tonic-gate * All rights reserved.
25*7c478bd9Sstevel@tonic-gate */
26*7c478bd9Sstevel@tonic-gate
27*7c478bd9Sstevel@tonic-gate #include <stdio.h>
28*7c478bd9Sstevel@tonic-gate #include <string.h>
29*7c478bd9Sstevel@tonic-gate #include <sys/types.h>
30*7c478bd9Sstevel@tonic-gate #include <sys/socket.h>
31*7c478bd9Sstevel@tonic-gate #include <sys/sysmacros.h>
32*7c478bd9Sstevel@tonic-gate #include <netinet/in.h>
33*7c478bd9Sstevel@tonic-gate #include <arpa/inet.h>
34*7c478bd9Sstevel@tonic-gate #include <net/pppoe.h>
35*7c478bd9Sstevel@tonic-gate #include "snoop.h"
36*7c478bd9Sstevel@tonic-gate
37*7c478bd9Sstevel@tonic-gate /*
38*7c478bd9Sstevel@tonic-gate * These two macros extract the version and type fields respectively from
39*7c478bd9Sstevel@tonic-gate * the first byte of the PPPoE header.
40*7c478bd9Sstevel@tonic-gate */
41*7c478bd9Sstevel@tonic-gate #define POE_VERS(x) (((x) >> 4) & 0x0f)
42*7c478bd9Sstevel@tonic-gate #define POE_TYPE(x) ((x) & 0x0f)
43*7c478bd9Sstevel@tonic-gate
44*7c478bd9Sstevel@tonic-gate typedef void interpret_func_t(uint8_t *, uint16_t);
45*7c478bd9Sstevel@tonic-gate
46*7c478bd9Sstevel@tonic-gate typedef struct taginfo {
47*7c478bd9Sstevel@tonic-gate char *tag_name;
48*7c478bd9Sstevel@tonic-gate uint16_t tag_type;
49*7c478bd9Sstevel@tonic-gate interpret_func_t *interpret_tagvalue;
50*7c478bd9Sstevel@tonic-gate } taginfo_t;
51*7c478bd9Sstevel@tonic-gate
52*7c478bd9Sstevel@tonic-gate
53*7c478bd9Sstevel@tonic-gate static char *pppoe_codetoname(int, boolean_t);
54*7c478bd9Sstevel@tonic-gate static taginfo_t *pppoe_gettaginfo(uint16_t);
55*7c478bd9Sstevel@tonic-gate static void print_hexdata(char *, uint8_t *, uint16_t);
56*7c478bd9Sstevel@tonic-gate static void print_utf8string(char *, char *, uint16_t);
57*7c478bd9Sstevel@tonic-gate static char *print_linetag(char *);
58*7c478bd9Sstevel@tonic-gate static interpret_func_t interpret_tags;
59*7c478bd9Sstevel@tonic-gate static interpret_func_t interpret_hexdata;
60*7c478bd9Sstevel@tonic-gate static interpret_func_t interpret_service;
61*7c478bd9Sstevel@tonic-gate static interpret_func_t interpret_access;
62*7c478bd9Sstevel@tonic-gate static interpret_func_t interpret_cookie;
63*7c478bd9Sstevel@tonic-gate static interpret_func_t interpret_vendor;
64*7c478bd9Sstevel@tonic-gate static interpret_func_t interpret_relay;
65*7c478bd9Sstevel@tonic-gate static interpret_func_t interpret_error;
66*7c478bd9Sstevel@tonic-gate static interpret_func_t interpret_hurl;
67*7c478bd9Sstevel@tonic-gate static interpret_func_t interpret_motm;
68*7c478bd9Sstevel@tonic-gate static interpret_func_t interpret_rteadd;
69*7c478bd9Sstevel@tonic-gate
70*7c478bd9Sstevel@tonic-gate
71*7c478bd9Sstevel@tonic-gate static taginfo_t taginfo_array[] = {
72*7c478bd9Sstevel@tonic-gate { "End-Of-List", POETT_END, interpret_hexdata },
73*7c478bd9Sstevel@tonic-gate { "Service-Name", POETT_SERVICE, interpret_service },
74*7c478bd9Sstevel@tonic-gate { "AC-Name", POETT_ACCESS, interpret_access },
75*7c478bd9Sstevel@tonic-gate { "Host-Uniq", POETT_UNIQ, interpret_hexdata },
76*7c478bd9Sstevel@tonic-gate { "AC-Cookie", POETT_COOKIE, interpret_cookie },
77*7c478bd9Sstevel@tonic-gate { "Vendor-Specific", POETT_VENDOR, interpret_vendor },
78*7c478bd9Sstevel@tonic-gate { "Relay-Session-Id", POETT_RELAY, interpret_relay },
79*7c478bd9Sstevel@tonic-gate { "Service-Name-Error", POETT_NAMERR, interpret_error },
80*7c478bd9Sstevel@tonic-gate { "AC-System-Error", POETT_SYSERR, interpret_error },
81*7c478bd9Sstevel@tonic-gate { "Generic-Error", POETT_GENERR, interpret_error },
82*7c478bd9Sstevel@tonic-gate { "Multicast-Capable", POETT_MULTI, interpret_hexdata },
83*7c478bd9Sstevel@tonic-gate { "Host-URL", POETT_HURL, interpret_hurl },
84*7c478bd9Sstevel@tonic-gate { "Message-Of-The-Minute", POETT_MOTM, interpret_motm },
85*7c478bd9Sstevel@tonic-gate { "IP-Route-Add", POETT_RTEADD, interpret_rteadd },
86*7c478bd9Sstevel@tonic-gate { "Unknown TAG", 0, NULL }
87*7c478bd9Sstevel@tonic-gate };
88*7c478bd9Sstevel@tonic-gate
89*7c478bd9Sstevel@tonic-gate
90*7c478bd9Sstevel@tonic-gate int
interpret_pppoe(int flags,poep_t * poep,int len)91*7c478bd9Sstevel@tonic-gate interpret_pppoe(int flags, poep_t *poep, int len)
92*7c478bd9Sstevel@tonic-gate {
93*7c478bd9Sstevel@tonic-gate uint8_t code = poep->poep_code;
94*7c478bd9Sstevel@tonic-gate uint8_t *payload;
95*7c478bd9Sstevel@tonic-gate
96*7c478bd9Sstevel@tonic-gate if (len < sizeof (poep_t))
97*7c478bd9Sstevel@tonic-gate return (len);
98*7c478bd9Sstevel@tonic-gate
99*7c478bd9Sstevel@tonic-gate payload = (uint8_t *)poep + sizeof (poep_t);
100*7c478bd9Sstevel@tonic-gate
101*7c478bd9Sstevel@tonic-gate if (flags & F_SUM) {
102*7c478bd9Sstevel@tonic-gate (void) sprintf(get_sum_line(), "PPPoE %s",
103*7c478bd9Sstevel@tonic-gate pppoe_codetoname(code, B_FALSE));
104*7c478bd9Sstevel@tonic-gate } else { /* flags & F_DTAIL */
105*7c478bd9Sstevel@tonic-gate show_header("PPPoE: ", "PPP Over Ethernet", len);
106*7c478bd9Sstevel@tonic-gate show_space();
107*7c478bd9Sstevel@tonic-gate
108*7c478bd9Sstevel@tonic-gate (void) sprintf(get_line(0, 0),
109*7c478bd9Sstevel@tonic-gate "Version = %d", POE_VERS(poep->poep_version_type));
110*7c478bd9Sstevel@tonic-gate
111*7c478bd9Sstevel@tonic-gate (void) sprintf(get_line(0, 0),
112*7c478bd9Sstevel@tonic-gate "Type = %d", POE_TYPE(poep->poep_version_type));
113*7c478bd9Sstevel@tonic-gate
114*7c478bd9Sstevel@tonic-gate (void) sprintf(get_line(0, 0),
115*7c478bd9Sstevel@tonic-gate "Code = %d (%s)", code, pppoe_codetoname(code, B_TRUE));
116*7c478bd9Sstevel@tonic-gate
117*7c478bd9Sstevel@tonic-gate (void) sprintf(get_line(0, 0),
118*7c478bd9Sstevel@tonic-gate "Session Id = %d", ntohs(poep->poep_session_id));
119*7c478bd9Sstevel@tonic-gate
120*7c478bd9Sstevel@tonic-gate (void) sprintf(get_line(0, 0),
121*7c478bd9Sstevel@tonic-gate "Length = %d bytes", ntohs(poep->poep_length));
122*7c478bd9Sstevel@tonic-gate
123*7c478bd9Sstevel@tonic-gate show_space();
124*7c478bd9Sstevel@tonic-gate
125*7c478bd9Sstevel@tonic-gate len -= sizeof (poep_t);
126*7c478bd9Sstevel@tonic-gate len = MIN(len, ntohs(poep->poep_length));
127*7c478bd9Sstevel@tonic-gate
128*7c478bd9Sstevel@tonic-gate if (poep->poep_code != 0 && poep->poep_length > 0) {
129*7c478bd9Sstevel@tonic-gate interpret_tags(payload, len);
130*7c478bd9Sstevel@tonic-gate }
131*7c478bd9Sstevel@tonic-gate }
132*7c478bd9Sstevel@tonic-gate
133*7c478bd9Sstevel@tonic-gate if (poep->poep_code == 0) {
134*7c478bd9Sstevel@tonic-gate return (interpret_ppp(flags, payload, len));
135*7c478bd9Sstevel@tonic-gate }
136*7c478bd9Sstevel@tonic-gate return (len);
137*7c478bd9Sstevel@tonic-gate }
138*7c478bd9Sstevel@tonic-gate
139*7c478bd9Sstevel@tonic-gate
140*7c478bd9Sstevel@tonic-gate /*
141*7c478bd9Sstevel@tonic-gate * interpret_tags() prints PPPoE Discovery Stage TAGs in detail.
142*7c478bd9Sstevel@tonic-gate */
143*7c478bd9Sstevel@tonic-gate static void
interpret_tags(uint8_t * payload,uint16_t length)144*7c478bd9Sstevel@tonic-gate interpret_tags(uint8_t *payload, uint16_t length)
145*7c478bd9Sstevel@tonic-gate {
146*7c478bd9Sstevel@tonic-gate uint8_t *tagptr = payload;
147*7c478bd9Sstevel@tonic-gate uint16_t tag_length;
148*7c478bd9Sstevel@tonic-gate uint16_t tag_type;
149*7c478bd9Sstevel@tonic-gate uint8_t *tag_value;
150*7c478bd9Sstevel@tonic-gate taginfo_t *tinfo;
151*7c478bd9Sstevel@tonic-gate
152*7c478bd9Sstevel@tonic-gate while (length >= POET_HDRLEN) {
153*7c478bd9Sstevel@tonic-gate tag_type = POET_GET_TYPE(tagptr);
154*7c478bd9Sstevel@tonic-gate tag_length = POET_GET_LENG(tagptr);
155*7c478bd9Sstevel@tonic-gate
156*7c478bd9Sstevel@tonic-gate tinfo = pppoe_gettaginfo(tag_type);
157*7c478bd9Sstevel@tonic-gate
158*7c478bd9Sstevel@tonic-gate show_header("PPPoE: ", tinfo->tag_name,
159*7c478bd9Sstevel@tonic-gate tag_length + POET_HDRLEN);
160*7c478bd9Sstevel@tonic-gate
161*7c478bd9Sstevel@tonic-gate (void) sprintf(get_line(0, 0),
162*7c478bd9Sstevel@tonic-gate "Tag Type = %d", tag_type);
163*7c478bd9Sstevel@tonic-gate
164*7c478bd9Sstevel@tonic-gate (void) sprintf(get_line(0, 0),
165*7c478bd9Sstevel@tonic-gate "Tag Length = %d bytes", tag_length);
166*7c478bd9Sstevel@tonic-gate
167*7c478bd9Sstevel@tonic-gate length -= POET_HDRLEN;
168*7c478bd9Sstevel@tonic-gate if (tag_length > length) {
169*7c478bd9Sstevel@tonic-gate (void) sprintf(get_line(0, 0),
170*7c478bd9Sstevel@tonic-gate "Warning: Truncated Packet");
171*7c478bd9Sstevel@tonic-gate show_space();
172*7c478bd9Sstevel@tonic-gate break;
173*7c478bd9Sstevel@tonic-gate }
174*7c478bd9Sstevel@tonic-gate
175*7c478bd9Sstevel@tonic-gate /*
176*7c478bd9Sstevel@tonic-gate * unknown tags or tags which should always have 0 length
177*7c478bd9Sstevel@tonic-gate * are not interpreted any further.
178*7c478bd9Sstevel@tonic-gate */
179*7c478bd9Sstevel@tonic-gate tag_value = POET_DATA(tagptr);
180*7c478bd9Sstevel@tonic-gate if (tag_length != 0 && tinfo->interpret_tagvalue != NULL)
181*7c478bd9Sstevel@tonic-gate tinfo->interpret_tagvalue(tag_value, tag_length);
182*7c478bd9Sstevel@tonic-gate
183*7c478bd9Sstevel@tonic-gate show_space();
184*7c478bd9Sstevel@tonic-gate length -= tag_length;
185*7c478bd9Sstevel@tonic-gate tagptr = POET_NEXT(tagptr);
186*7c478bd9Sstevel@tonic-gate }
187*7c478bd9Sstevel@tonic-gate }
188*7c478bd9Sstevel@tonic-gate
189*7c478bd9Sstevel@tonic-gate static char *
pppoe_codetoname(int code,boolean_t verbose)190*7c478bd9Sstevel@tonic-gate pppoe_codetoname(int code, boolean_t verbose)
191*7c478bd9Sstevel@tonic-gate {
192*7c478bd9Sstevel@tonic-gate char *name;
193*7c478bd9Sstevel@tonic-gate
194*7c478bd9Sstevel@tonic-gate switch (code) {
195*7c478bd9Sstevel@tonic-gate case POECODE_DATA:
196*7c478bd9Sstevel@tonic-gate name = "Session";
197*7c478bd9Sstevel@tonic-gate break;
198*7c478bd9Sstevel@tonic-gate case POECODE_PADO:
199*7c478bd9Sstevel@tonic-gate if (verbose)
200*7c478bd9Sstevel@tonic-gate name = "Active Discovery Offer";
201*7c478bd9Sstevel@tonic-gate else
202*7c478bd9Sstevel@tonic-gate name = "PADO";
203*7c478bd9Sstevel@tonic-gate break;
204*7c478bd9Sstevel@tonic-gate case POECODE_PADI:
205*7c478bd9Sstevel@tonic-gate if (verbose)
206*7c478bd9Sstevel@tonic-gate name = "Active Discovery Initiation";
207*7c478bd9Sstevel@tonic-gate else
208*7c478bd9Sstevel@tonic-gate name = "PADI";
209*7c478bd9Sstevel@tonic-gate break;
210*7c478bd9Sstevel@tonic-gate case POECODE_PADR:
211*7c478bd9Sstevel@tonic-gate if (verbose)
212*7c478bd9Sstevel@tonic-gate name = "Active Discovery Request";
213*7c478bd9Sstevel@tonic-gate else
214*7c478bd9Sstevel@tonic-gate name = "PADR";
215*7c478bd9Sstevel@tonic-gate break;
216*7c478bd9Sstevel@tonic-gate case POECODE_PADS:
217*7c478bd9Sstevel@tonic-gate if (verbose)
218*7c478bd9Sstevel@tonic-gate name = "Active Discovery Session-Confirmation";
219*7c478bd9Sstevel@tonic-gate else
220*7c478bd9Sstevel@tonic-gate name = "PADS";
221*7c478bd9Sstevel@tonic-gate break;
222*7c478bd9Sstevel@tonic-gate case POECODE_PADT:
223*7c478bd9Sstevel@tonic-gate if (verbose)
224*7c478bd9Sstevel@tonic-gate name = "Active Discovery Terminate";
225*7c478bd9Sstevel@tonic-gate else
226*7c478bd9Sstevel@tonic-gate name = "PADT";
227*7c478bd9Sstevel@tonic-gate break;
228*7c478bd9Sstevel@tonic-gate case POECODE_PADM:
229*7c478bd9Sstevel@tonic-gate if (verbose)
230*7c478bd9Sstevel@tonic-gate name = "Active Discovery Message";
231*7c478bd9Sstevel@tonic-gate else
232*7c478bd9Sstevel@tonic-gate name = "PADM";
233*7c478bd9Sstevel@tonic-gate break;
234*7c478bd9Sstevel@tonic-gate case POECODE_PADN:
235*7c478bd9Sstevel@tonic-gate if (verbose)
236*7c478bd9Sstevel@tonic-gate name = "Active Discovery Network";
237*7c478bd9Sstevel@tonic-gate else
238*7c478bd9Sstevel@tonic-gate name = "PADN";
239*7c478bd9Sstevel@tonic-gate break;
240*7c478bd9Sstevel@tonic-gate default:
241*7c478bd9Sstevel@tonic-gate name = "Unknown Code";
242*7c478bd9Sstevel@tonic-gate }
243*7c478bd9Sstevel@tonic-gate
244*7c478bd9Sstevel@tonic-gate return (name);
245*7c478bd9Sstevel@tonic-gate }
246*7c478bd9Sstevel@tonic-gate
247*7c478bd9Sstevel@tonic-gate static taginfo_t *
pppoe_gettaginfo(uint16_t type)248*7c478bd9Sstevel@tonic-gate pppoe_gettaginfo(uint16_t type)
249*7c478bd9Sstevel@tonic-gate {
250*7c478bd9Sstevel@tonic-gate taginfo_t *taginfo_ptr = &taginfo_array[0];
251*7c478bd9Sstevel@tonic-gate int i = 0;
252*7c478bd9Sstevel@tonic-gate
253*7c478bd9Sstevel@tonic-gate while (taginfo_ptr->tag_type != type &&
254*7c478bd9Sstevel@tonic-gate taginfo_ptr->interpret_tagvalue != NULL) {
255*7c478bd9Sstevel@tonic-gate taginfo_ptr = &taginfo_array[++i];
256*7c478bd9Sstevel@tonic-gate }
257*7c478bd9Sstevel@tonic-gate
258*7c478bd9Sstevel@tonic-gate return (taginfo_ptr);
259*7c478bd9Sstevel@tonic-gate }
260*7c478bd9Sstevel@tonic-gate
261*7c478bd9Sstevel@tonic-gate static void
interpret_hexdata(uint8_t * tag_value,uint16_t tag_length)262*7c478bd9Sstevel@tonic-gate interpret_hexdata(uint8_t *tag_value, uint16_t tag_length)
263*7c478bd9Sstevel@tonic-gate {
264*7c478bd9Sstevel@tonic-gate char *endofline;
265*7c478bd9Sstevel@tonic-gate
266*7c478bd9Sstevel@tonic-gate endofline = print_linetag("Data = ");
267*7c478bd9Sstevel@tonic-gate print_hexdata(endofline, tag_value, tag_length);
268*7c478bd9Sstevel@tonic-gate }
269*7c478bd9Sstevel@tonic-gate
270*7c478bd9Sstevel@tonic-gate static void
interpret_service(uint8_t * tag_value,uint16_t tag_length)271*7c478bd9Sstevel@tonic-gate interpret_service(uint8_t *tag_value, uint16_t tag_length)
272*7c478bd9Sstevel@tonic-gate {
273*7c478bd9Sstevel@tonic-gate char *endofline;
274*7c478bd9Sstevel@tonic-gate
275*7c478bd9Sstevel@tonic-gate endofline = print_linetag("Service Name = ");
276*7c478bd9Sstevel@tonic-gate print_utf8string(endofline, (char *)tag_value, tag_length);
277*7c478bd9Sstevel@tonic-gate }
278*7c478bd9Sstevel@tonic-gate
279*7c478bd9Sstevel@tonic-gate static void
interpret_access(uint8_t * tag_value,uint16_t tag_length)280*7c478bd9Sstevel@tonic-gate interpret_access(uint8_t *tag_value, uint16_t tag_length)
281*7c478bd9Sstevel@tonic-gate {
282*7c478bd9Sstevel@tonic-gate char *endofline;
283*7c478bd9Sstevel@tonic-gate
284*7c478bd9Sstevel@tonic-gate endofline = print_linetag("AC Name = ");
285*7c478bd9Sstevel@tonic-gate print_utf8string(endofline, (char *)tag_value, tag_length);
286*7c478bd9Sstevel@tonic-gate }
287*7c478bd9Sstevel@tonic-gate
288*7c478bd9Sstevel@tonic-gate static void
interpret_cookie(uint8_t * tag_value,uint16_t tag_length)289*7c478bd9Sstevel@tonic-gate interpret_cookie(uint8_t *tag_value, uint16_t tag_length)
290*7c478bd9Sstevel@tonic-gate {
291*7c478bd9Sstevel@tonic-gate char *endofline;
292*7c478bd9Sstevel@tonic-gate
293*7c478bd9Sstevel@tonic-gate endofline = print_linetag("Cookie = ");
294*7c478bd9Sstevel@tonic-gate print_hexdata(endofline, tag_value, tag_length);
295*7c478bd9Sstevel@tonic-gate }
296*7c478bd9Sstevel@tonic-gate
297*7c478bd9Sstevel@tonic-gate static void
interpret_vendor(uint8_t * tag_value,uint16_t tag_length)298*7c478bd9Sstevel@tonic-gate interpret_vendor(uint8_t *tag_value, uint16_t tag_length)
299*7c478bd9Sstevel@tonic-gate {
300*7c478bd9Sstevel@tonic-gate uint8_t *vendor_data;
301*7c478bd9Sstevel@tonic-gate uint32_t vendorid;
302*7c478bd9Sstevel@tonic-gate char *endofline;
303*7c478bd9Sstevel@tonic-gate
304*7c478bd9Sstevel@tonic-gate vendorid = ntohl(*(uint32_t *)tag_value);
305*7c478bd9Sstevel@tonic-gate (void) sprintf(get_line(0, 0),
306*7c478bd9Sstevel@tonic-gate "Vendor ID = %d", vendorid);
307*7c478bd9Sstevel@tonic-gate
308*7c478bd9Sstevel@tonic-gate if (tag_length > 4) {
309*7c478bd9Sstevel@tonic-gate vendor_data = tag_value + 4;
310*7c478bd9Sstevel@tonic-gate endofline = print_linetag("Vendor Data = ");
311*7c478bd9Sstevel@tonic-gate print_hexdata(endofline, vendor_data, tag_length - 4);
312*7c478bd9Sstevel@tonic-gate }
313*7c478bd9Sstevel@tonic-gate }
314*7c478bd9Sstevel@tonic-gate
315*7c478bd9Sstevel@tonic-gate static void
interpret_relay(uint8_t * tag_value,uint16_t tag_length)316*7c478bd9Sstevel@tonic-gate interpret_relay(uint8_t *tag_value, uint16_t tag_length)
317*7c478bd9Sstevel@tonic-gate {
318*7c478bd9Sstevel@tonic-gate char *endofline;
319*7c478bd9Sstevel@tonic-gate
320*7c478bd9Sstevel@tonic-gate endofline = print_linetag("ID = ");
321*7c478bd9Sstevel@tonic-gate print_hexdata(endofline, tag_value, tag_length);
322*7c478bd9Sstevel@tonic-gate }
323*7c478bd9Sstevel@tonic-gate
324*7c478bd9Sstevel@tonic-gate static void
interpret_error(uint8_t * tag_value,uint16_t tag_length)325*7c478bd9Sstevel@tonic-gate interpret_error(uint8_t *tag_value, uint16_t tag_length)
326*7c478bd9Sstevel@tonic-gate {
327*7c478bd9Sstevel@tonic-gate char *endofline;
328*7c478bd9Sstevel@tonic-gate
329*7c478bd9Sstevel@tonic-gate endofline = print_linetag("Error = ");
330*7c478bd9Sstevel@tonic-gate print_utf8string(endofline, (char *)tag_value, tag_length);
331*7c478bd9Sstevel@tonic-gate }
332*7c478bd9Sstevel@tonic-gate
333*7c478bd9Sstevel@tonic-gate static void
interpret_hurl(uint8_t * tag_value,uint16_t tag_length)334*7c478bd9Sstevel@tonic-gate interpret_hurl(uint8_t *tag_value, uint16_t tag_length)
335*7c478bd9Sstevel@tonic-gate {
336*7c478bd9Sstevel@tonic-gate char *endofline;
337*7c478bd9Sstevel@tonic-gate
338*7c478bd9Sstevel@tonic-gate endofline = print_linetag("URL = ");
339*7c478bd9Sstevel@tonic-gate print_utf8string(endofline, (char *)tag_value, tag_length);
340*7c478bd9Sstevel@tonic-gate }
341*7c478bd9Sstevel@tonic-gate
342*7c478bd9Sstevel@tonic-gate static void
interpret_motm(uint8_t * tag_value,uint16_t tag_length)343*7c478bd9Sstevel@tonic-gate interpret_motm(uint8_t *tag_value, uint16_t tag_length)
344*7c478bd9Sstevel@tonic-gate {
345*7c478bd9Sstevel@tonic-gate char *endofline;
346*7c478bd9Sstevel@tonic-gate
347*7c478bd9Sstevel@tonic-gate endofline = print_linetag("Message = ");
348*7c478bd9Sstevel@tonic-gate print_utf8string(endofline, (char *)tag_value, tag_length);
349*7c478bd9Sstevel@tonic-gate }
350*7c478bd9Sstevel@tonic-gate
351*7c478bd9Sstevel@tonic-gate static void
interpret_rteadd(uint8_t * tag_value,uint16_t tag_length)352*7c478bd9Sstevel@tonic-gate interpret_rteadd(uint8_t *tag_value, uint16_t tag_length)
353*7c478bd9Sstevel@tonic-gate {
354*7c478bd9Sstevel@tonic-gate char dest[INET_ADDRSTRLEN];
355*7c478bd9Sstevel@tonic-gate char mask[INET_ADDRSTRLEN];
356*7c478bd9Sstevel@tonic-gate char gateway[INET_ADDRSTRLEN];
357*7c478bd9Sstevel@tonic-gate uint32_t metric;
358*7c478bd9Sstevel@tonic-gate
359*7c478bd9Sstevel@tonic-gate if (tag_length == 16) {
360*7c478bd9Sstevel@tonic-gate (void) inet_ntop(AF_INET, tag_value, dest,
361*7c478bd9Sstevel@tonic-gate INET_ADDRSTRLEN);
362*7c478bd9Sstevel@tonic-gate (void) inet_ntop(AF_INET, &tag_value[4], mask,
363*7c478bd9Sstevel@tonic-gate INET_ADDRSTRLEN);
364*7c478bd9Sstevel@tonic-gate (void) inet_ntop(AF_INET, &tag_value[8], gateway,
365*7c478bd9Sstevel@tonic-gate INET_ADDRSTRLEN);
366*7c478bd9Sstevel@tonic-gate metric = ntohl(*(uint32_t *)&tag_value[12]);
367*7c478bd9Sstevel@tonic-gate sprintf(get_line(0, 0),
368*7c478bd9Sstevel@tonic-gate "Destination\tNetmask\tGateway\tMetric");
369*7c478bd9Sstevel@tonic-gate sprintf(get_line(0, 0),
370*7c478bd9Sstevel@tonic-gate "%s\t%s\t%s\t%d", dest, mask, gateway, metric);
371*7c478bd9Sstevel@tonic-gate }
372*7c478bd9Sstevel@tonic-gate }
373*7c478bd9Sstevel@tonic-gate
374*7c478bd9Sstevel@tonic-gate static void
print_hexdata(char * line,uint8_t * data,uint16_t length)375*7c478bd9Sstevel@tonic-gate print_hexdata(char *line, uint8_t *data, uint16_t length)
376*7c478bd9Sstevel@tonic-gate {
377*7c478bd9Sstevel@tonic-gate uint16_t index = 0;
378*7c478bd9Sstevel@tonic-gate
379*7c478bd9Sstevel@tonic-gate line += sprintf(line, "0x");
380*7c478bd9Sstevel@tonic-gate
381*7c478bd9Sstevel@tonic-gate while (index < length) {
382*7c478bd9Sstevel@tonic-gate line += sprintf(line, "%02x", data[index++]);
383*7c478bd9Sstevel@tonic-gate }
384*7c478bd9Sstevel@tonic-gate }
385*7c478bd9Sstevel@tonic-gate
386*7c478bd9Sstevel@tonic-gate static void
print_utf8string(char * firstline,char * string,uint16_t length)387*7c478bd9Sstevel@tonic-gate print_utf8string(char *firstline, char *string, uint16_t length)
388*7c478bd9Sstevel@tonic-gate {
389*7c478bd9Sstevel@tonic-gate (void) sprintf(firstline, "%.*s", length, string);
390*7c478bd9Sstevel@tonic-gate }
391*7c478bd9Sstevel@tonic-gate
392*7c478bd9Sstevel@tonic-gate static char *
print_linetag(char * string)393*7c478bd9Sstevel@tonic-gate print_linetag(char *string)
394*7c478bd9Sstevel@tonic-gate {
395*7c478bd9Sstevel@tonic-gate char *line = get_line(0, 0);
396*7c478bd9Sstevel@tonic-gate return (line + sprintf(line, string));
397*7c478bd9Sstevel@tonic-gate }
398