1 | #include <machine/rtems-bsd-user-space.h> |
---|
2 | |
---|
3 | #ifdef __rtems__ |
---|
4 | #include <machine/rtems-bsd-program.h> |
---|
5 | #include "rtems-bsd-tcpdump-namespace.h" |
---|
6 | #endif /* __rtems__ */ |
---|
7 | /* |
---|
8 | * Copyright (c) 2016 Antonin Décimo, Jean-Raphaël Gaglione |
---|
9 | * |
---|
10 | * Redistribution and use in source and binary forms, with or without |
---|
11 | * modification, are permitted provided that the following conditions |
---|
12 | * are met: |
---|
13 | * 1. Redistributions of source code must retain the above copyright |
---|
14 | * notice, this list of conditions and the following disclaimer. |
---|
15 | * 2. Redistributions in binary form must reproduce the above copyright |
---|
16 | * notice, this list of conditions and the following disclaimer in the |
---|
17 | * documentation and/or other materials provided with the distribution. |
---|
18 | * 3. Neither the name of the project nor the names of its contributors |
---|
19 | * may be used to endorse or promote products derived from this software |
---|
20 | * without specific prior written permission. |
---|
21 | * |
---|
22 | * THIS SOFTWARE IS PROVIDED BY THE PROJECT AND CONTRIBUTORS ``AS IS'' AND |
---|
23 | * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
---|
24 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
---|
25 | * ARE DISCLAIMED. IN NO EVENT SHALL THE PROJECT OR CONTRIBUTORS BE LIABLE |
---|
26 | * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL |
---|
27 | * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS |
---|
28 | * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) |
---|
29 | * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT |
---|
30 | * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY |
---|
31 | * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF |
---|
32 | * SUCH DAMAGE. |
---|
33 | */ |
---|
34 | |
---|
35 | /* \summary: Home Networking Control Protocol (HNCP) printer */ |
---|
36 | |
---|
37 | #ifdef HAVE_CONFIG_H |
---|
38 | #include "config.h" |
---|
39 | #endif |
---|
40 | |
---|
41 | #include <netdissect-stdinc.h> |
---|
42 | |
---|
43 | #include <stdlib.h> |
---|
44 | #include <string.h> |
---|
45 | |
---|
46 | #include "netdissect.h" |
---|
47 | #include "addrtoname.h" |
---|
48 | #include "extract.h" |
---|
49 | |
---|
50 | static void |
---|
51 | hncp_print_rec(netdissect_options *ndo, |
---|
52 | const u_char *cp, u_int length, int indent); |
---|
53 | |
---|
54 | void |
---|
55 | hncp_print(netdissect_options *ndo, |
---|
56 | const u_char *cp, u_int length) |
---|
57 | { |
---|
58 | ND_PRINT((ndo, "hncp (%d)", length)); |
---|
59 | hncp_print_rec(ndo, cp, length, 1); |
---|
60 | } |
---|
61 | |
---|
62 | /* RFC7787 */ |
---|
63 | #define DNCP_REQUEST_NETWORK_STATE 1 |
---|
64 | #define DNCP_REQUEST_NODE_STATE 2 |
---|
65 | #define DNCP_NODE_ENDPOINT 3 |
---|
66 | #define DNCP_NETWORK_STATE 4 |
---|
67 | #define DNCP_NODE_STATE 5 |
---|
68 | #define DNCP_PEER 8 |
---|
69 | #define DNCP_KEEP_ALIVE_INTERVAL 9 |
---|
70 | #define DNCP_TRUST_VERDICT 10 |
---|
71 | |
---|
72 | /* RFC7788 */ |
---|
73 | #define HNCP_HNCP_VERSION 32 |
---|
74 | #define HNCP_EXTERNAL_CONNECTION 33 |
---|
75 | #define HNCP_DELEGATED_PREFIX 34 |
---|
76 | #define HNCP_PREFIX_POLICY 43 |
---|
77 | #define HNCP_DHCPV4_DATA 37 |
---|
78 | #define HNCP_DHCPV6_DATA 38 |
---|
79 | #define HNCP_ASSIGNED_PREFIX 35 |
---|
80 | #define HNCP_NODE_ADDRESS 36 |
---|
81 | #define HNCP_DNS_DELEGATED_ZONE 39 |
---|
82 | #define HNCP_DOMAIN_NAME 40 |
---|
83 | #define HNCP_NODE_NAME 41 |
---|
84 | #define HNCP_MANAGED_PSK 42 |
---|
85 | |
---|
86 | /* See type_mask in hncp_print_rec below */ |
---|
87 | #define RANGE_DNCP_RESERVED 0x10000 |
---|
88 | #define RANGE_HNCP_UNASSIGNED 0x10001 |
---|
89 | #define RANGE_DNCP_PRIVATE_USE 0x10002 |
---|
90 | #define RANGE_DNCP_FUTURE_USE 0x10003 |
---|
91 | |
---|
92 | static const struct tok type_values[] = { |
---|
93 | { DNCP_REQUEST_NETWORK_STATE, "Request network state" }, |
---|
94 | { DNCP_REQUEST_NODE_STATE, "Request node state" }, |
---|
95 | { DNCP_NODE_ENDPOINT, "Node endpoint" }, |
---|
96 | { DNCP_NETWORK_STATE, "Network state" }, |
---|
97 | { DNCP_NODE_STATE, "Node state" }, |
---|
98 | { DNCP_PEER, "Peer" }, |
---|
99 | { DNCP_KEEP_ALIVE_INTERVAL, "Keep-alive interval" }, |
---|
100 | { DNCP_TRUST_VERDICT, "Trust-Verdict" }, |
---|
101 | |
---|
102 | { HNCP_HNCP_VERSION, "HNCP-Version" }, |
---|
103 | { HNCP_EXTERNAL_CONNECTION, "External-Connection" }, |
---|
104 | { HNCP_DELEGATED_PREFIX, "Delegated-Prefix" }, |
---|
105 | { HNCP_PREFIX_POLICY, "Prefix-Policy" }, |
---|
106 | { HNCP_DHCPV4_DATA, "DHCPv4-Data" }, |
---|
107 | { HNCP_DHCPV6_DATA, "DHCPv6-Data" }, |
---|
108 | { HNCP_ASSIGNED_PREFIX, "Assigned-Prefix" }, |
---|
109 | { HNCP_NODE_ADDRESS, "Node-Address" }, |
---|
110 | { HNCP_DNS_DELEGATED_ZONE, "DNS-Delegated-Zone" }, |
---|
111 | { HNCP_DOMAIN_NAME, "Domain-Name" }, |
---|
112 | { HNCP_NODE_NAME, "Node-Name" }, |
---|
113 | { HNCP_MANAGED_PSK, "Managed-PSK" }, |
---|
114 | |
---|
115 | { RANGE_DNCP_RESERVED, "Reserved" }, |
---|
116 | { RANGE_HNCP_UNASSIGNED, "Unassigned" }, |
---|
117 | { RANGE_DNCP_PRIVATE_USE, "Private use" }, |
---|
118 | { RANGE_DNCP_FUTURE_USE, "Future use" }, |
---|
119 | |
---|
120 | { 0, NULL} |
---|
121 | }; |
---|
122 | |
---|
123 | #define DH4OPT_DNS_SERVERS 6 /* RFC2132 */ |
---|
124 | #define DH4OPT_NTP_SERVERS 42 /* RFC2132 */ |
---|
125 | #define DH4OPT_DOMAIN_SEARCH 119 /* RFC3397 */ |
---|
126 | |
---|
127 | static const struct tok dh4opt_str[] = { |
---|
128 | { DH4OPT_DNS_SERVERS, "DNS-server" }, |
---|
129 | { DH4OPT_NTP_SERVERS, "NTP-server"}, |
---|
130 | { DH4OPT_DOMAIN_SEARCH, "DNS-search" }, |
---|
131 | { 0, NULL } |
---|
132 | }; |
---|
133 | |
---|
134 | #define DH6OPT_DNS_SERVERS 23 /* RFC3646 */ |
---|
135 | #define DH6OPT_DOMAIN_LIST 24 /* RFC3646 */ |
---|
136 | #define DH6OPT_SNTP_SERVERS 31 /* RFC4075 */ |
---|
137 | |
---|
138 | static const struct tok dh6opt_str[] = { |
---|
139 | { DH6OPT_DNS_SERVERS, "DNS-server" }, |
---|
140 | { DH6OPT_DOMAIN_LIST, "DNS-search-list" }, |
---|
141 | { DH6OPT_SNTP_SERVERS, "SNTP-servers" }, |
---|
142 | { 0, NULL } |
---|
143 | }; |
---|
144 | |
---|
145 | /* |
---|
146 | * For IPv4-mapped IPv6 addresses, length of the prefix that precedes |
---|
147 | * the 4 bytes of IPv4 address at the end of the IPv6 address. |
---|
148 | */ |
---|
149 | #define IPV4_MAPPED_HEADING_LEN 12 |
---|
150 | |
---|
151 | /* |
---|
152 | * Is an IPv6 address an IPv4-mapped address? |
---|
153 | */ |
---|
154 | static inline int |
---|
155 | is_ipv4_mapped_address(const u_char *addr) |
---|
156 | { |
---|
157 | /* The value of the prefix */ |
---|
158 | static const u_char ipv4_mapped_heading[IPV4_MAPPED_HEADING_LEN] = |
---|
159 | { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0xFF, 0xFF }; |
---|
160 | |
---|
161 | return memcmp(addr, ipv4_mapped_heading, IPV4_MAPPED_HEADING_LEN) == 0; |
---|
162 | } |
---|
163 | |
---|
164 | static const char * |
---|
165 | format_nid(const u_char *data) |
---|
166 | { |
---|
167 | static char buf[4][11+5]; |
---|
168 | static int i = 0; |
---|
169 | i = (i + 1) % 4; |
---|
170 | snprintf(buf[i], 16, "%02x:%02x:%02x:%02x", |
---|
171 | data[0], data[1], data[2], data[3]); |
---|
172 | return buf[i]; |
---|
173 | } |
---|
174 | |
---|
175 | static const char * |
---|
176 | format_256(const u_char *data) |
---|
177 | { |
---|
178 | static char buf[4][64+5]; |
---|
179 | static int i = 0; |
---|
180 | i = (i + 1) % 4; |
---|
181 | snprintf(buf[i], 28, "%016" PRIx64 "%016" PRIx64 "%016" PRIx64 "%016" PRIx64, |
---|
182 | EXTRACT_64BITS(data), |
---|
183 | EXTRACT_64BITS(data + 8), |
---|
184 | EXTRACT_64BITS(data + 16), |
---|
185 | EXTRACT_64BITS(data + 24) |
---|
186 | ); |
---|
187 | return buf[i]; |
---|
188 | } |
---|
189 | |
---|
190 | static const char * |
---|
191 | format_interval(const uint32_t n) |
---|
192 | { |
---|
193 | static char buf[4][sizeof("0000000.000s")]; |
---|
194 | static int i = 0; |
---|
195 | i = (i + 1) % 4; |
---|
196 | snprintf(buf[i], sizeof(buf[i]), "%u.%03us", n / 1000, n % 1000); |
---|
197 | return buf[i]; |
---|
198 | } |
---|
199 | |
---|
200 | static const char * |
---|
201 | format_ip6addr(netdissect_options *ndo, const u_char *cp) |
---|
202 | { |
---|
203 | if (is_ipv4_mapped_address(cp)) |
---|
204 | return ipaddr_string(ndo, cp + IPV4_MAPPED_HEADING_LEN); |
---|
205 | else |
---|
206 | return ip6addr_string(ndo, cp); |
---|
207 | } |
---|
208 | |
---|
209 | static int |
---|
210 | print_prefix(netdissect_options *ndo, const u_char *prefix, u_int max_length) |
---|
211 | { |
---|
212 | int plenbytes; |
---|
213 | char buf[sizeof("xxxx:xxxx:xxxx:xxxx:xxxx:xxxx:xxxx:xxxx::/128")]; |
---|
214 | |
---|
215 | if (prefix[0] >= 96 && max_length >= IPV4_MAPPED_HEADING_LEN + 1 && |
---|
216 | is_ipv4_mapped_address(&prefix[1])) { |
---|
217 | struct in_addr addr; |
---|
218 | u_int plen; |
---|
219 | |
---|
220 | plen = prefix[0]-96; |
---|
221 | if (32 < plen) |
---|
222 | return -1; |
---|
223 | max_length -= 1; |
---|
224 | |
---|
225 | memset(&addr, 0, sizeof(addr)); |
---|
226 | plenbytes = (plen + 7) / 8; |
---|
227 | if (max_length < (u_int)plenbytes + IPV4_MAPPED_HEADING_LEN) |
---|
228 | return -3; |
---|
229 | memcpy(&addr, &prefix[1 + IPV4_MAPPED_HEADING_LEN], plenbytes); |
---|
230 | if (plen % 8) { |
---|
231 | ((u_char *)&addr)[plenbytes - 1] &= |
---|
232 | ((0xff00 >> (plen % 8)) & 0xff); |
---|
233 | } |
---|
234 | snprintf(buf, sizeof(buf), "%s/%d", ipaddr_string(ndo, &addr), plen); |
---|
235 | plenbytes += 1 + IPV4_MAPPED_HEADING_LEN; |
---|
236 | } else { |
---|
237 | plenbytes = decode_prefix6(ndo, prefix, max_length, buf, sizeof(buf)); |
---|
238 | } |
---|
239 | |
---|
240 | ND_PRINT((ndo, "%s", buf)); |
---|
241 | return plenbytes; |
---|
242 | } |
---|
243 | |
---|
244 | static int |
---|
245 | print_dns_label(netdissect_options *ndo, |
---|
246 | const u_char *cp, u_int max_length, int print) |
---|
247 | { |
---|
248 | u_int length = 0; |
---|
249 | while (length < max_length) { |
---|
250 | u_int lab_length = cp[length++]; |
---|
251 | if (lab_length == 0) |
---|
252 | return (int)length; |
---|
253 | if (length > 1 && print) |
---|
254 | safeputchar(ndo, '.'); |
---|
255 | if (length+lab_length > max_length) { |
---|
256 | if (print) |
---|
257 | safeputs(ndo, cp+length, max_length-length); |
---|
258 | break; |
---|
259 | } |
---|
260 | if (print) |
---|
261 | safeputs(ndo, cp+length, lab_length); |
---|
262 | length += lab_length; |
---|
263 | } |
---|
264 | if (print) |
---|
265 | ND_PRINT((ndo, "[|DNS]")); |
---|
266 | return -1; |
---|
267 | } |
---|
268 | |
---|
269 | static int |
---|
270 | dhcpv4_print(netdissect_options *ndo, |
---|
271 | const u_char *cp, u_int length, int indent) |
---|
272 | { |
---|
273 | u_int i, t; |
---|
274 | const u_char *tlv, *value; |
---|
275 | uint8_t type, optlen; |
---|
276 | |
---|
277 | i = 0; |
---|
278 | while (i < length) { |
---|
279 | if (i + 2 > length) |
---|
280 | return -1; |
---|
281 | tlv = cp + i; |
---|
282 | type = (uint8_t)tlv[0]; |
---|
283 | optlen = (uint8_t)tlv[1]; |
---|
284 | value = tlv + 2; |
---|
285 | |
---|
286 | ND_PRINT((ndo, "\n")); |
---|
287 | for (t = indent; t > 0; t--) |
---|
288 | ND_PRINT((ndo, "\t")); |
---|
289 | |
---|
290 | ND_PRINT((ndo, "%s", tok2str(dh4opt_str, "Unknown", type))); |
---|
291 | ND_PRINT((ndo," (%u)", optlen + 2 )); |
---|
292 | if (i + 2 + optlen > length) |
---|
293 | return -1; |
---|
294 | |
---|
295 | switch (type) { |
---|
296 | case DH4OPT_DNS_SERVERS: |
---|
297 | case DH4OPT_NTP_SERVERS: { |
---|
298 | if (optlen < 4 || optlen % 4 != 0) { |
---|
299 | return -1; |
---|
300 | } |
---|
301 | for (t = 0; t < optlen; t += 4) |
---|
302 | ND_PRINT((ndo, " %s", ipaddr_string(ndo, value + t))); |
---|
303 | } |
---|
304 | break; |
---|
305 | case DH4OPT_DOMAIN_SEARCH: { |
---|
306 | const u_char *tp = value; |
---|
307 | while (tp < value + optlen) { |
---|
308 | ND_PRINT((ndo, " ")); |
---|
309 | if ((tp = ns_nprint(ndo, tp, value + optlen)) == NULL) |
---|
310 | return -1; |
---|
311 | } |
---|
312 | } |
---|
313 | break; |
---|
314 | } |
---|
315 | |
---|
316 | i += 2 + optlen; |
---|
317 | } |
---|
318 | return 0; |
---|
319 | } |
---|
320 | |
---|
321 | static int |
---|
322 | dhcpv6_print(netdissect_options *ndo, |
---|
323 | const u_char *cp, u_int length, int indent) |
---|
324 | { |
---|
325 | u_int i, t; |
---|
326 | const u_char *tlv, *value; |
---|
327 | uint16_t type, optlen; |
---|
328 | |
---|
329 | i = 0; |
---|
330 | while (i < length) { |
---|
331 | if (i + 4 > length) |
---|
332 | return -1; |
---|
333 | tlv = cp + i; |
---|
334 | type = EXTRACT_16BITS(tlv); |
---|
335 | optlen = EXTRACT_16BITS(tlv + 2); |
---|
336 | value = tlv + 4; |
---|
337 | |
---|
338 | ND_PRINT((ndo, "\n")); |
---|
339 | for (t = indent; t > 0; t--) |
---|
340 | ND_PRINT((ndo, "\t")); |
---|
341 | |
---|
342 | ND_PRINT((ndo, "%s", tok2str(dh6opt_str, "Unknown", type))); |
---|
343 | ND_PRINT((ndo," (%u)", optlen + 4 )); |
---|
344 | if (i + 4 + optlen > length) |
---|
345 | return -1; |
---|
346 | |
---|
347 | switch (type) { |
---|
348 | case DH6OPT_DNS_SERVERS: |
---|
349 | case DH6OPT_SNTP_SERVERS: { |
---|
350 | if (optlen % 16 != 0) { |
---|
351 | ND_PRINT((ndo, " %s", istr)); |
---|
352 | return -1; |
---|
353 | } |
---|
354 | for (t = 0; t < optlen; t += 16) |
---|
355 | ND_PRINT((ndo, " %s", ip6addr_string(ndo, value + t))); |
---|
356 | } |
---|
357 | break; |
---|
358 | case DH6OPT_DOMAIN_LIST: { |
---|
359 | const u_char *tp = value; |
---|
360 | while (tp < value + optlen) { |
---|
361 | ND_PRINT((ndo, " ")); |
---|
362 | if ((tp = ns_nprint(ndo, tp, value + optlen)) == NULL) |
---|
363 | return -1; |
---|
364 | } |
---|
365 | } |
---|
366 | break; |
---|
367 | } |
---|
368 | |
---|
369 | i += 4 + optlen; |
---|
370 | } |
---|
371 | return 0; |
---|
372 | } |
---|
373 | |
---|
374 | /* Determine in-line mode */ |
---|
375 | static int |
---|
376 | is_in_line(netdissect_options *ndo, int indent) |
---|
377 | { |
---|
378 | return indent - 1 >= ndo->ndo_vflag && ndo->ndo_vflag < 3; |
---|
379 | } |
---|
380 | |
---|
381 | static void |
---|
382 | print_type_in_line(netdissect_options *ndo, |
---|
383 | uint32_t type, int count, int indent, int *first_one) |
---|
384 | { |
---|
385 | if (count > 0) { |
---|
386 | if (*first_one) { |
---|
387 | *first_one = 0; |
---|
388 | if (indent > 1) { |
---|
389 | u_int t; |
---|
390 | ND_PRINT((ndo, "\n")); |
---|
391 | for (t = indent; t > 0; t--) |
---|
392 | ND_PRINT((ndo, "\t")); |
---|
393 | } else { |
---|
394 | ND_PRINT((ndo, " ")); |
---|
395 | } |
---|
396 | } else { |
---|
397 | ND_PRINT((ndo, ", ")); |
---|
398 | } |
---|
399 | ND_PRINT((ndo, "%s", tok2str(type_values, "Easter Egg", type))); |
---|
400 | if (count > 1) |
---|
401 | ND_PRINT((ndo, " (x%d)", count)); |
---|
402 | } |
---|
403 | } |
---|
404 | |
---|
405 | void |
---|
406 | hncp_print_rec(netdissect_options *ndo, |
---|
407 | const u_char *cp, u_int length, int indent) |
---|
408 | { |
---|
409 | const int in_line = is_in_line(ndo, indent); |
---|
410 | int first_one = 1; |
---|
411 | |
---|
412 | u_int i, t; |
---|
413 | |
---|
414 | uint32_t last_type_mask = 0xffffffffU; |
---|
415 | int last_type_count = -1; |
---|
416 | |
---|
417 | const u_char *tlv, *value; |
---|
418 | uint16_t type, bodylen; |
---|
419 | uint32_t type_mask; |
---|
420 | |
---|
421 | i = 0; |
---|
422 | while (i < length) { |
---|
423 | tlv = cp + i; |
---|
424 | |
---|
425 | if (!in_line) { |
---|
426 | ND_PRINT((ndo, "\n")); |
---|
427 | for (t = indent; t > 0; t--) |
---|
428 | ND_PRINT((ndo, "\t")); |
---|
429 | } |
---|
430 | |
---|
431 | ND_TCHECK2(*tlv, 4); |
---|
432 | if (i + 4 > length) |
---|
433 | goto invalid; |
---|
434 | |
---|
435 | type = EXTRACT_16BITS(tlv); |
---|
436 | bodylen = EXTRACT_16BITS(tlv + 2); |
---|
437 | value = tlv + 4; |
---|
438 | ND_TCHECK2(*value, bodylen); |
---|
439 | if (i + bodylen + 4 > length) |
---|
440 | goto invalid; |
---|
441 | |
---|
442 | type_mask = |
---|
443 | (type == 0) ? RANGE_DNCP_RESERVED: |
---|
444 | (44 <= type && type <= 511) ? RANGE_HNCP_UNASSIGNED: |
---|
445 | (768 <= type && type <= 1023) ? RANGE_DNCP_PRIVATE_USE: |
---|
446 | RANGE_DNCP_FUTURE_USE; |
---|
447 | if (type == 6 || type == 7) |
---|
448 | type_mask = RANGE_DNCP_FUTURE_USE; |
---|
449 | |
---|
450 | /* defined types */ |
---|
451 | { |
---|
452 | t = 0; |
---|
453 | while (1) { |
---|
454 | u_int key = type_values[t++].v; |
---|
455 | if (key > 0xffff) |
---|
456 | break; |
---|
457 | if (key == type) { |
---|
458 | type_mask = type; |
---|
459 | break; |
---|
460 | } |
---|
461 | } |
---|
462 | } |
---|
463 | |
---|
464 | if (in_line) { |
---|
465 | if (last_type_mask == type_mask) { |
---|
466 | last_type_count++; |
---|
467 | } else { |
---|
468 | print_type_in_line(ndo, last_type_mask, last_type_count, indent, &first_one); |
---|
469 | last_type_mask = type_mask; |
---|
470 | last_type_count = 1; |
---|
471 | } |
---|
472 | |
---|
473 | goto skip_multiline; |
---|
474 | } |
---|
475 | |
---|
476 | ND_PRINT((ndo,"%s", tok2str(type_values, "Easter Egg (42)", type_mask) )); |
---|
477 | if (type_mask > 0xffff) |
---|
478 | ND_PRINT((ndo,": type=%u", type )); |
---|
479 | ND_PRINT((ndo," (%u)", bodylen + 4 )); |
---|
480 | |
---|
481 | switch (type_mask) { |
---|
482 | |
---|
483 | case DNCP_REQUEST_NETWORK_STATE: { |
---|
484 | if (bodylen != 0) |
---|
485 | ND_PRINT((ndo, " %s", istr)); |
---|
486 | } |
---|
487 | break; |
---|
488 | |
---|
489 | case DNCP_REQUEST_NODE_STATE: { |
---|
490 | const char *node_identifier; |
---|
491 | if (bodylen != 4) { |
---|
492 | ND_PRINT((ndo, " %s", istr)); |
---|
493 | break; |
---|
494 | } |
---|
495 | node_identifier = format_nid(value); |
---|
496 | ND_PRINT((ndo, " NID: %s", node_identifier)); |
---|
497 | } |
---|
498 | break; |
---|
499 | |
---|
500 | case DNCP_NODE_ENDPOINT: { |
---|
501 | const char *node_identifier; |
---|
502 | uint32_t endpoint_identifier; |
---|
503 | if (bodylen != 8) { |
---|
504 | ND_PRINT((ndo, " %s", istr)); |
---|
505 | break; |
---|
506 | } |
---|
507 | node_identifier = format_nid(value); |
---|
508 | endpoint_identifier = EXTRACT_32BITS(value + 4); |
---|
509 | ND_PRINT((ndo, " NID: %s EPID: %08x", |
---|
510 | node_identifier, |
---|
511 | endpoint_identifier |
---|
512 | )); |
---|
513 | } |
---|
514 | break; |
---|
515 | |
---|
516 | case DNCP_NETWORK_STATE: { |
---|
517 | uint64_t hash; |
---|
518 | if (bodylen != 8) { |
---|
519 | ND_PRINT((ndo, " %s", istr)); |
---|
520 | break; |
---|
521 | } |
---|
522 | hash = EXTRACT_64BITS(value); |
---|
523 | ND_PRINT((ndo, " hash: %016" PRIx64, hash)); |
---|
524 | } |
---|
525 | break; |
---|
526 | |
---|
527 | case DNCP_NODE_STATE: { |
---|
528 | const char *node_identifier, *interval; |
---|
529 | uint32_t sequence_number; |
---|
530 | uint64_t hash; |
---|
531 | if (bodylen < 20) { |
---|
532 | ND_PRINT((ndo, " %s", istr)); |
---|
533 | break; |
---|
534 | } |
---|
535 | node_identifier = format_nid(value); |
---|
536 | sequence_number = EXTRACT_32BITS(value + 4); |
---|
537 | interval = format_interval(EXTRACT_32BITS(value + 8)); |
---|
538 | hash = EXTRACT_64BITS(value + 12); |
---|
539 | ND_PRINT((ndo, " NID: %s seqno: %u %s hash: %016" PRIx64, |
---|
540 | node_identifier, |
---|
541 | sequence_number, |
---|
542 | interval, |
---|
543 | hash |
---|
544 | )); |
---|
545 | hncp_print_rec(ndo, value+20, bodylen-20, indent+1); |
---|
546 | } |
---|
547 | break; |
---|
548 | |
---|
549 | case DNCP_PEER: { |
---|
550 | const char *peer_node_identifier; |
---|
551 | uint32_t peer_endpoint_identifier, endpoint_identifier; |
---|
552 | if (bodylen != 12) { |
---|
553 | ND_PRINT((ndo, " %s", istr)); |
---|
554 | break; |
---|
555 | } |
---|
556 | peer_node_identifier = format_nid(value); |
---|
557 | peer_endpoint_identifier = EXTRACT_32BITS(value + 4); |
---|
558 | endpoint_identifier = EXTRACT_32BITS(value + 8); |
---|
559 | ND_PRINT((ndo, " Peer-NID: %s Peer-EPID: %08x Local-EPID: %08x", |
---|
560 | peer_node_identifier, |
---|
561 | peer_endpoint_identifier, |
---|
562 | endpoint_identifier |
---|
563 | )); |
---|
564 | } |
---|
565 | break; |
---|
566 | |
---|
567 | case DNCP_KEEP_ALIVE_INTERVAL: { |
---|
568 | uint32_t endpoint_identifier; |
---|
569 | const char *interval; |
---|
570 | if (bodylen < 8) { |
---|
571 | ND_PRINT((ndo, " %s", istr)); |
---|
572 | break; |
---|
573 | } |
---|
574 | endpoint_identifier = EXTRACT_32BITS(value); |
---|
575 | interval = format_interval(EXTRACT_32BITS(value + 4)); |
---|
576 | ND_PRINT((ndo, " EPID: %08x Interval: %s", |
---|
577 | endpoint_identifier, |
---|
578 | interval |
---|
579 | )); |
---|
580 | } |
---|
581 | break; |
---|
582 | |
---|
583 | case DNCP_TRUST_VERDICT: { |
---|
584 | if (bodylen <= 36) { |
---|
585 | ND_PRINT((ndo, " %s", istr)); |
---|
586 | break; |
---|
587 | } |
---|
588 | ND_PRINT((ndo, " Verdict: %u Fingerprint: %s Common Name: ", |
---|
589 | *value, |
---|
590 | format_256(value + 4))); |
---|
591 | safeputs(ndo, value + 36, bodylen - 36); |
---|
592 | } |
---|
593 | break; |
---|
594 | |
---|
595 | case HNCP_HNCP_VERSION: { |
---|
596 | uint16_t capabilities; |
---|
597 | uint8_t M, P, H, L; |
---|
598 | if (bodylen < 5) { |
---|
599 | ND_PRINT((ndo, " %s", istr)); |
---|
600 | break; |
---|
601 | } |
---|
602 | capabilities = EXTRACT_16BITS(value + 2); |
---|
603 | M = (uint8_t)((capabilities >> 12) & 0xf); |
---|
604 | P = (uint8_t)((capabilities >> 8) & 0xf); |
---|
605 | H = (uint8_t)((capabilities >> 4) & 0xf); |
---|
606 | L = (uint8_t)(capabilities & 0xf); |
---|
607 | ND_PRINT((ndo, " M: %u P: %u H: %u L: %u User-agent: ", |
---|
608 | M, P, H, L |
---|
609 | )); |
---|
610 | safeputs(ndo, value + 4, bodylen - 4); |
---|
611 | } |
---|
612 | break; |
---|
613 | |
---|
614 | case HNCP_EXTERNAL_CONNECTION: { |
---|
615 | /* Container TLV */ |
---|
616 | hncp_print_rec(ndo, value, bodylen, indent+1); |
---|
617 | } |
---|
618 | break; |
---|
619 | |
---|
620 | case HNCP_DELEGATED_PREFIX: { |
---|
621 | int l; |
---|
622 | if (bodylen < 9 || bodylen < 9 + (value[8] + 7) / 8) { |
---|
623 | ND_PRINT((ndo, " %s", istr)); |
---|
624 | break; |
---|
625 | } |
---|
626 | ND_PRINT((ndo, " VLSO: %s PLSO: %s Prefix: ", |
---|
627 | format_interval(EXTRACT_32BITS(value)), |
---|
628 | format_interval(EXTRACT_32BITS(value + 4)) |
---|
629 | )); |
---|
630 | l = print_prefix(ndo, value + 8, bodylen - 8); |
---|
631 | if (l == -1) { |
---|
632 | ND_PRINT((ndo, "(length is invalid)")); |
---|
633 | break; |
---|
634 | } |
---|
635 | if (l < 0) { |
---|
636 | /* |
---|
637 | * We've already checked that we've captured the |
---|
638 | * entire TLV, based on its length, so this will |
---|
639 | * either be -1, meaning "the prefix length is |
---|
640 | * greater than the longest possible address of |
---|
641 | * that type" (i.e., > 32 for IPv4 or > 128 for |
---|
642 | * IPv6", or -3, meaning "the prefix runs past |
---|
643 | * the end of the TLV". |
---|
644 | */ |
---|
645 | ND_PRINT((ndo, " %s", istr)); |
---|
646 | break; |
---|
647 | } |
---|
648 | l += 8 + (-l & 3); |
---|
649 | |
---|
650 | if (bodylen >= l) |
---|
651 | hncp_print_rec(ndo, value + l, bodylen - l, indent+1); |
---|
652 | } |
---|
653 | break; |
---|
654 | |
---|
655 | case HNCP_PREFIX_POLICY: { |
---|
656 | uint8_t policy; |
---|
657 | int l; |
---|
658 | if (bodylen < 1) { |
---|
659 | ND_PRINT((ndo, " %s", istr)); |
---|
660 | break; |
---|
661 | } |
---|
662 | policy = value[0]; |
---|
663 | ND_PRINT((ndo, " type: ")); |
---|
664 | if (policy == 0) { |
---|
665 | if (bodylen != 1) { |
---|
666 | ND_PRINT((ndo, " %s", istr)); |
---|
667 | break; |
---|
668 | } |
---|
669 | ND_PRINT((ndo, "Internet connectivity")); |
---|
670 | } else if (policy >= 1 && policy <= 128) { |
---|
671 | ND_PRINT((ndo, "Dest-Prefix: ")); |
---|
672 | l = print_prefix(ndo, value, bodylen); |
---|
673 | if (l == -1) { |
---|
674 | ND_PRINT((ndo, "(length is invalid)")); |
---|
675 | break; |
---|
676 | } |
---|
677 | if (l < 0) { |
---|
678 | /* |
---|
679 | * We've already checked that we've captured the |
---|
680 | * entire TLV, based on its length, so this will |
---|
681 | * either be -1, meaning "the prefix length is |
---|
682 | * greater than the longest possible address of |
---|
683 | * that type" (i.e., > 32 for IPv4 or > 128 for |
---|
684 | * IPv6", or -3, meaning "the prefix runs past |
---|
685 | * the end of the TLV". |
---|
686 | */ |
---|
687 | ND_PRINT((ndo, " %s", istr)); |
---|
688 | break; |
---|
689 | } |
---|
690 | } else if (policy == 129) { |
---|
691 | ND_PRINT((ndo, "DNS domain: ")); |
---|
692 | print_dns_label(ndo, value+1, bodylen-1, 1); |
---|
693 | } else if (policy == 130) { |
---|
694 | ND_PRINT((ndo, "Opaque UTF-8: ")); |
---|
695 | safeputs(ndo, value + 1, bodylen - 1); |
---|
696 | } else if (policy == 131) { |
---|
697 | if (bodylen != 1) { |
---|
698 | ND_PRINT((ndo, " %s", istr)); |
---|
699 | break; |
---|
700 | } |
---|
701 | ND_PRINT((ndo, "Restrictive assignment")); |
---|
702 | } else if (policy >= 132) { |
---|
703 | ND_PRINT((ndo, "Unknown (%u)", policy)); /* Reserved for future additions */ |
---|
704 | } |
---|
705 | } |
---|
706 | break; |
---|
707 | |
---|
708 | case HNCP_DHCPV4_DATA: { |
---|
709 | if (bodylen == 0) { |
---|
710 | ND_PRINT((ndo, " %s", istr)); |
---|
711 | break; |
---|
712 | } |
---|
713 | if (dhcpv4_print(ndo, value, bodylen, indent+1) != 0) |
---|
714 | goto invalid; |
---|
715 | } |
---|
716 | break; |
---|
717 | |
---|
718 | case HNCP_DHCPV6_DATA: { |
---|
719 | if (bodylen == 0) { |
---|
720 | ND_PRINT((ndo, " %s", istr)); |
---|
721 | break; |
---|
722 | } |
---|
723 | if (dhcpv6_print(ndo, value, bodylen, indent+1) != 0) { |
---|
724 | ND_PRINT((ndo, " %s", istr)); |
---|
725 | break; |
---|
726 | } |
---|
727 | } |
---|
728 | break; |
---|
729 | |
---|
730 | case HNCP_ASSIGNED_PREFIX: { |
---|
731 | uint8_t prty; |
---|
732 | int l; |
---|
733 | if (bodylen < 6 || bodylen < 6 + (value[5] + 7) / 8) { |
---|
734 | ND_PRINT((ndo, " %s", istr)); |
---|
735 | break; |
---|
736 | } |
---|
737 | prty = (uint8_t)(value[4] & 0xf); |
---|
738 | ND_PRINT((ndo, " EPID: %08x Prty: %u", |
---|
739 | EXTRACT_32BITS(value), |
---|
740 | prty |
---|
741 | )); |
---|
742 | ND_PRINT((ndo, " Prefix: ")); |
---|
743 | if ((l = print_prefix(ndo, value + 5, bodylen - 5)) < 0) { |
---|
744 | ND_PRINT((ndo, " %s", istr)); |
---|
745 | break; |
---|
746 | } |
---|
747 | l += 5; |
---|
748 | l += -l & 3; |
---|
749 | |
---|
750 | if (bodylen >= l) |
---|
751 | hncp_print_rec(ndo, value + l, bodylen - l, indent+1); |
---|
752 | } |
---|
753 | break; |
---|
754 | |
---|
755 | case HNCP_NODE_ADDRESS: { |
---|
756 | uint32_t endpoint_identifier; |
---|
757 | const char *ip_address; |
---|
758 | if (bodylen < 20) { |
---|
759 | ND_PRINT((ndo, " %s", istr)); |
---|
760 | break; |
---|
761 | } |
---|
762 | endpoint_identifier = EXTRACT_32BITS(value); |
---|
763 | ip_address = format_ip6addr(ndo, value + 4); |
---|
764 | ND_PRINT((ndo, " EPID: %08x IP Address: %s", |
---|
765 | endpoint_identifier, |
---|
766 | ip_address |
---|
767 | )); |
---|
768 | |
---|
769 | hncp_print_rec(ndo, value + 20, bodylen - 20, indent+1); |
---|
770 | } |
---|
771 | break; |
---|
772 | |
---|
773 | case HNCP_DNS_DELEGATED_ZONE: { |
---|
774 | const char *ip_address; |
---|
775 | int len; |
---|
776 | if (bodylen < 17) { |
---|
777 | ND_PRINT((ndo, " %s", istr)); |
---|
778 | break; |
---|
779 | } |
---|
780 | ip_address = format_ip6addr(ndo, value); |
---|
781 | ND_PRINT((ndo, " IP-Address: %s %c%c%c ", |
---|
782 | ip_address, |
---|
783 | (value[16] & 4) ? 'l' : '-', |
---|
784 | (value[16] & 2) ? 'b' : '-', |
---|
785 | (value[16] & 1) ? 's' : '-' |
---|
786 | )); |
---|
787 | len = print_dns_label(ndo, value+17, bodylen-17, 1); |
---|
788 | if (len < 0) { |
---|
789 | ND_PRINT((ndo, " %s", istr)); |
---|
790 | break; |
---|
791 | } |
---|
792 | len += 17; |
---|
793 | len += -len & 3; |
---|
794 | if (bodylen >= len) |
---|
795 | hncp_print_rec(ndo, value+len, bodylen-len, indent+1); |
---|
796 | } |
---|
797 | break; |
---|
798 | |
---|
799 | case HNCP_DOMAIN_NAME: { |
---|
800 | if (bodylen == 0) { |
---|
801 | ND_PRINT((ndo, " %s", istr)); |
---|
802 | break; |
---|
803 | } |
---|
804 | ND_PRINT((ndo, " Domain: ")); |
---|
805 | print_dns_label(ndo, value, bodylen, 1); |
---|
806 | } |
---|
807 | break; |
---|
808 | |
---|
809 | case HNCP_NODE_NAME: { |
---|
810 | u_int l; |
---|
811 | if (bodylen < 17) { |
---|
812 | ND_PRINT((ndo, " %s", istr)); |
---|
813 | break; |
---|
814 | } |
---|
815 | l = value[16]; |
---|
816 | if (bodylen < 17 + l) { |
---|
817 | ND_PRINT((ndo, " %s", istr)); |
---|
818 | break; |
---|
819 | } |
---|
820 | ND_PRINT((ndo, " IP-Address: %s Name: ", |
---|
821 | format_ip6addr(ndo, value) |
---|
822 | )); |
---|
823 | if (l < 64) { |
---|
824 | safeputchar(ndo, '"'); |
---|
825 | safeputs(ndo, value + 17, l); |
---|
826 | safeputchar(ndo, '"'); |
---|
827 | } else { |
---|
828 | ND_PRINT((ndo, "%s", istr)); |
---|
829 | } |
---|
830 | l += 17; |
---|
831 | l += -l & 3; |
---|
832 | if (bodylen >= l) |
---|
833 | hncp_print_rec(ndo, value + l, bodylen - l, indent+1); |
---|
834 | } |
---|
835 | break; |
---|
836 | |
---|
837 | case HNCP_MANAGED_PSK: { |
---|
838 | if (bodylen < 32) { |
---|
839 | ND_PRINT((ndo, " %s", istr)); |
---|
840 | break; |
---|
841 | } |
---|
842 | ND_PRINT((ndo, " PSK: %s", format_256(value))); |
---|
843 | hncp_print_rec(ndo, value + 32, bodylen - 32, indent+1); |
---|
844 | } |
---|
845 | break; |
---|
846 | |
---|
847 | case RANGE_DNCP_RESERVED: |
---|
848 | case RANGE_HNCP_UNASSIGNED: |
---|
849 | case RANGE_DNCP_PRIVATE_USE: |
---|
850 | case RANGE_DNCP_FUTURE_USE: |
---|
851 | break; |
---|
852 | |
---|
853 | } |
---|
854 | skip_multiline: |
---|
855 | |
---|
856 | i += 4 + bodylen + (-bodylen & 3); |
---|
857 | } |
---|
858 | print_type_in_line(ndo, last_type_mask, last_type_count, indent, &first_one); |
---|
859 | |
---|
860 | return; |
---|
861 | |
---|
862 | trunc: |
---|
863 | ND_PRINT((ndo, "%s", "[|hncp]")); |
---|
864 | return; |
---|
865 | |
---|
866 | invalid: |
---|
867 | ND_PRINT((ndo, "%s", istr)); |
---|
868 | return; |
---|
869 | } |
---|
870 | #ifdef __rtems__ |
---|
871 | #include "rtems-bsd-tcpdump-print-hncp-data.h" |
---|
872 | #endif /* __rtems__ */ |
---|