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Revert "TODO epan/dissectors/asn1/kerberos/packet-kerberos-template.c new GSS flags"
[wireshark-sm.git] / epan / dissectors / packet-mount.c
bloba74a0566a11d804f13846f586af0583edf8478ea
1 /* packet-mount.c
2 * Routines for mount dissection
3 *
4 * Wireshark - Network traffic analyzer
5 * By Gerald Combs <gerald@wireshark.org>
6 * Copyright 1998 Gerald Combs
7 *
8 * Copied from packet-smb.c
9 *
10 * SPDX-License-Identifier: GPL-2.0-or-later
11 */
12
13 #include "config.h"
14
15
16 #include <epan/exceptions.h>
17 #include <epan/to_str.h>
18 #include <epan/strutil.h>
19 #include <epan/tfs.h>
20 #include <wsutil/array.h>
21 #include "packet-mount.h"
22 #include "packet-nfs.h"
23
24 void proto_register_mount(void);
25 void proto_reg_handoff_mount(void);
26
27 static int proto_mount;
28 static int proto_sgi_mount;
29 static int hf_mount_procedure_v1;
30 static int hf_mount_procedure_v2;
31 static int hf_mount_procedure_v3;
32 static int hf_sgi_mount_procedure_v1;
33 static int hf_mount_path;
34 static int hf_mount3_status;
35 static int hf_mount_mountlist_hostname;
36 static int hf_mount_mountlist_directory;
37 static int hf_mount_mountlist;
38 static int hf_mount_groups_group;
39 static int hf_mount_groups;
40 static int hf_mount_exportlist_directory;
41 static int hf_mount_exportlist;
42 static int hf_mount_has_options;
43 static int hf_mount_options;
44 static int hf_mount_pathconf_link_max;
45 static int hf_mount_pathconf_max_canon;
46 static int hf_mount_pathconf_max_input;
47 static int hf_mount_pathconf_name_max;
48 static int hf_mount_pathconf_path_max;
49 static int hf_mount_pathconf_pipe_buf;
50 static int hf_mount_pathconf_vdisable;
51 static int hf_mount_pathconf_mask;
52 static int hf_mount_pathconf_error_all;
53 static int hf_mount_pathconf_error_link_max;
54 static int hf_mount_pathconf_error_max_canon;
55 static int hf_mount_pathconf_error_max_input;
56 static int hf_mount_pathconf_error_name_max;
57 static int hf_mount_pathconf_error_path_max;
58 static int hf_mount_pathconf_error_pipe_buf;
59 static int hf_mount_pathconf_chown_restricted;
60 static int hf_mount_pathconf_no_trunc;
61 static int hf_mount_pathconf_error_vdisable;
62 static int hf_mount_statvfs_bsize;
63 static int hf_mount_statvfs_frsize;
64 static int hf_mount_statvfs_blocks;
65 static int hf_mount_statvfs_bfree;
66 static int hf_mount_statvfs_bavail;
67 static int hf_mount_statvfs_files;
68 static int hf_mount_statvfs_ffree;
69 static int hf_mount_statvfs_favail;
70 static int hf_mount_statvfs_fsid;
71 static int hf_mount_statvfs_basetype;
72 static int hf_mount_statvfs_flag;
73 static int hf_mount_statvfs_flag_rdonly;
74 static int hf_mount_statvfs_flag_nosuid;
75 static int hf_mount_statvfs_flag_notrunc;
76 static int hf_mount_statvfs_flag_nodev;
77 static int hf_mount_statvfs_flag_grpid;
78 static int hf_mount_statvfs_flag_local;
79 static int hf_mount_statvfs_namemax;
80 static int hf_mount_statvfs_fstr;
81 static int hf_mount_flavors;
82 static int hf_mount_flavor;
83
84 static int ett_mount;
85 static int ett_mount_mountlist;
86 static int ett_mount_groups;
87 static int ett_mount_exportlist;
88 static int ett_mount_pathconf_mask;
89 static int ett_mount_statvfs_flag;
90
91 /* RFC 1813, Page 107 */
92 static const value_string mount3_mountstat3[] =
93 {
94 { 0, "OK" },
95 { 1, "ERR_PERM" },
96 { 2, "ERR_NOENT" },
97 { 5, "ERR_IO" },
98 { 13, "ERR_ACCESS" },
99 { 20, "ERR_NOTDIR" },
100 { 22, "ERR_INVAL" },
101 { 63, "ERR_NAMETOOLONG" },
102 { 10004, "ERR_NOTSUPP" },
103 { 10006, "ERR_SERVERFAULT" },
104 { 0, NULL }
105 };
106
107
108 /* RFC 1094, Page 24 */
109 /* This function dissects fhstatus for v1 and v2 of the mount protocol.
110 * Formally, hf_mount3_status only define the status codes returned by version
111 * 3 of the protocol.
112 * Though not formally defined in the standard, we use the same
113 * value-to-string mappings as version 3 since we believe that this mapping
114 * is consistent with most v1 and v2 implementations.
115 */
116 static int
117 dissect_fhstatus(tvbuff_t *tvb, int offset, packet_info *pinfo, proto_tree *tree, rpc_call_info_value* civ)
118 {
119 int32_t status;
120
121 status=tvb_get_ntohl(tvb,offset);
122 offset = dissect_rpc_uint32(tvb,tree,hf_mount3_status,offset);
123
124 switch (status) {
125 case 0:
126 offset = dissect_fhandle(tvb,offset,pinfo,tree,"fhandle", NULL, civ);
127 break;
128 default:
129 /* void */
130 col_append_fstr(
131 pinfo->cinfo, COL_INFO, " Error:%s",
132 val_to_str(status, mount3_mountstat3,
133 "Unknown (0x%08X)"));
134 break;
135 }
136
137 return offset;
138 }
139
140
141 static int
142 dissect_mount_dirpath_call(tvbuff_t *tvb, packet_info *pinfo,
143 proto_tree *tree, void* data)
144 {
145 const char *mountpoint=NULL;
146 int offset = 0;
147
148 if((!pinfo->fd->visited) && nfs_file_name_snooping){
149 rpc_call_info_value *civ=(rpc_call_info_value *)data;
150
151 if(civ->request && (civ->proc==1)){
152 uint32_t len_field;
153
154 len_field = tvb_get_ntohl(tvb, offset);
155 if (len_field < ITEM_LABEL_LENGTH) {
156 char *name, *ptr;
157 int addr_len, name_len;
158
159 name = address_to_str(pinfo->pool, &pinfo->dst);
160 addr_len = (int)strlen(name);
161 /* IP address, colon, path, terminating 0 */
162 name_len = addr_len + 1 + len_field + 1;
163
164 name = (char *)wmem_realloc(pinfo->pool,
165 (void *)name, name_len);
166 ptr = name + addr_len;
167 *ptr++ = ':';
168 tvb_memcpy(tvb, ptr, offset+4, len_field);
169 ptr += len_field;
170 *ptr = 0;
171
172 nfs_name_snoop_add_name(civ->xid, tvb, -1, name_len, 0, 0, name);
173 }
174 }
175 }
176
177 offset = dissect_rpc_string(tvb,tree,hf_mount_path,offset,&mountpoint);
178 col_append_fstr(pinfo->cinfo, COL_INFO," %s", mountpoint);
179
180 return offset;
181 }
182
183
184 /* RFC 1094, Page 25,26 */
185 static int
186 dissect_mount1_mnt_reply(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, void* data)
187 {
188 return dissect_fhstatus(tvb,0,pinfo,tree,(rpc_call_info_value*)data);
189 }
190
191
192
193 /* RFC 1094, Page 26 */
194 /* RFC 1813, Page 110 */
195 static int
196 dissect_mountlist(tvbuff_t *tvb, int offset, packet_info *pinfo _U_, proto_tree *tree, void* data _U_)
197 {
198 proto_item* lock_item;
199 proto_tree* lock_tree;
200 int old_offset = offset;
201 const char* hostname;
202 const char* directory;
203
204 lock_item = proto_tree_add_item(tree, hf_mount_mountlist, tvb,
205 offset, -1, ENC_NA);
206
207 lock_tree = proto_item_add_subtree(lock_item, ett_mount_mountlist);
208
209 offset = dissect_rpc_string(tvb, lock_tree,
210 hf_mount_mountlist_hostname, offset, &hostname);
211 offset = dissect_rpc_string(tvb, lock_tree,
212 hf_mount_mountlist_directory, offset, &directory);
213
214 if (lock_item) {
215 /* now we have a nicer string */
216 proto_item_set_text(lock_item, "Mount List Entry: %s:%s", hostname, directory);
217 /* now we know, that mountlist is shorter */
218 proto_item_set_len(lock_item, offset - old_offset);
219 }
220
221 return offset;
222 }
223
224
225 /* RFC 1094, Page 26 */
226 /* RFC 1813, Page 110 */
227 static int
228 dissect_mount_dump_reply(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, void* data _U_)
229 {
230 return dissect_rpc_list(tvb, pinfo, tree, 0,
231 dissect_mountlist, NULL);
232 }
233
234
235
236 /* RFC 1094, Page 26 */
237 /* RFC 1813, Page 110 */
238 static int
239 dissect_group(tvbuff_t *tvb, int offset, packet_info *pinfo _U_, proto_tree *tree, void* data)
240 {
241 wmem_strbuf_t *group_name_list = (wmem_strbuf_t *)data;
242 const char *group_name;
243
244 offset = dissect_rpc_string(tvb, tree,
245 hf_mount_groups_group, offset, &group_name);
246 if (wmem_strbuf_get_len(group_name_list) != 0)
247 wmem_strbuf_append_c(group_name_list, ' ');
248 wmem_strbuf_append(group_name_list, group_name);
249
250 return offset;
251 }
252
253
254 /* RFC 1094, Page 26 */
255 /* RFC 1813, Page 113 */
256 static int
257 dissect_exportlist(tvbuff_t *tvb, int offset, packet_info *pinfo, proto_tree *tree, void* data _U_)
258 {
259 proto_item* exportlist_item = NULL;
260 proto_tree* exportlist_tree = NULL;
261 int old_offset = offset;
262 int groups_offset;
263 proto_item* groups_item = NULL;
264 proto_item* groups_tree = NULL;
265 const char* directory;
266 wmem_strbuf_t* group_name_list_strbuf;
267 const char* group_name_list;
268
269 if (tree) {
270 exportlist_item = proto_tree_add_item(tree, hf_mount_exportlist, tvb, offset, -1, ENC_NA);
271 exportlist_tree = proto_item_add_subtree(exportlist_item, ett_mount_exportlist);
272 }
273
274 offset = dissect_rpc_string(tvb, exportlist_tree,
275 hf_mount_exportlist_directory, offset, &directory);
276 groups_offset = offset;
277
278 groups_item = proto_tree_add_item(exportlist_tree, hf_mount_groups, tvb, offset, -1, ENC_NA);
279 groups_tree = proto_item_add_subtree(groups_item, ett_mount_groups);
280
281 group_name_list_strbuf = wmem_strbuf_new(pinfo->pool, "");
282 offset = dissect_rpc_list(tvb, pinfo, groups_tree, offset,
283 dissect_group, (void *)group_name_list_strbuf);
284 if (groups_item) {
285 /* mark empty lists */
286 if (offset - groups_offset == 4) {
287 proto_item_set_text(groups_item, "Groups: empty");
288 }
289
290 /* now we know, that groups is shorter */
291 proto_item_set_len(groups_item, offset - groups_offset);
292 }
293
294 group_name_list = wmem_strbuf_finalize(group_name_list_strbuf);
295
296 if (exportlist_item) {
297 /* now we have a nicer string */
298 proto_item_set_text(exportlist_item,
299 "Export List Entry: %s -> %s",
300 format_text(pinfo->pool, directory, strlen(directory)),
301 format_text(pinfo->pool, group_name_list, strlen(group_name_list)));
302 /* now we know, that exportlist is shorter */
303 proto_item_set_len(exportlist_item, offset - old_offset);
304 }
305
306 return offset;
307 }
308
309
310 /* RFC 1094, Page 26 */
311 /* RFC 1813, Page 113 */
312 static int
313 dissect_mount_export_reply(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, void* data _U_)
314 {
315 return dissect_rpc_list(tvb, pinfo, tree, 0,
316 dissect_exportlist, NULL);
317 }
318
319
320 #define OFFS_MASK 32 /* offset of the "pc_mask" field */
321
322 #define PC_ERROR_ALL 0x0001
323 #define PC_ERROR_LINK_MAX 0x0002
324 #define PC_ERROR_MAX_CANON 0x0004
325 #define PC_ERROR_MAX_INPUT 0x0008
326 #define PC_ERROR_NAME_MAX 0x0010
327 #define PC_ERROR_PATH_MAX 0x0020
328 #define PC_ERROR_PIPE_BUF 0x0040
329 #define PC_CHOWN_RESTRICTED 0x0080
330 #define PC_NO_TRUNC 0x0100
331 #define PC_ERROR_VDISABLE 0x0200
332
333 static const true_false_string tos_error_all = {
334 "All info invalid",
335 "Some or all info valid"
336 };
337
338 static const true_false_string tos_error_link_max = {
339 "LINK_MAX invalid",
340 "LINK_MAX valid"
341 };
342
343 static const true_false_string tos_error_max_canon = {
344 "MAX_CANON invalid",
345 "MAX_CANON valid"
346 };
347
348 static const true_false_string tos_error_max_input = {
349 "MAX_INPUT invalid",
350 "MAX_INPUT valid"
351 };
352
353 static const true_false_string tos_error_name_max = {
354 "NAME_MAX invalid",
355 "NAME_MAX valid"
356 };
357
358 static const true_false_string tos_error_path_max = {
359 "PATH_MAX invalid",
360 "PATH_MAX valid"
361 };
362
363 static const true_false_string tos_error_pipe_buf = {
364 "PIPE_BUF invalid",
365 "PIPE_BUF valid"
366 };
367
368 static const true_false_string tos_chown_restricted = {
369 "Only a privileged user can change the ownership of a file",
370 "Users may give away their own files"
371 };
372
373 static const true_false_string tos_no_trunc = {
374 "File names that are too long will get an error",
375 "File names that are too long will be truncated"
376 };
377
378 static const true_false_string tos_error_vdisable = {
379 "VDISABLE invalid",
380 "VDISABLE valid"
381 };
382
383
384 static int
385 dissect_mount_pathconf_reply(tvbuff_t *tvb, packet_info *pinfo _U_, proto_tree *tree, void* data _U_)
386 {
387 uint32_t pc_mask;
388 static int * const flags[] = {
389 &hf_mount_pathconf_error_all,
390 &hf_mount_pathconf_error_link_max,
391 &hf_mount_pathconf_error_max_canon,
392 &hf_mount_pathconf_error_max_input,
393 &hf_mount_pathconf_error_name_max,
394 &hf_mount_pathconf_error_path_max,
395 &hf_mount_pathconf_error_pipe_buf,
396 &hf_mount_pathconf_chown_restricted,
397 &hf_mount_pathconf_no_trunc,
398 &hf_mount_pathconf_error_vdisable,
399 NULL
400 };
401 int offset = 0;
402
403 /*
404 * Extract the mask first, so we know which other fields the
405 * server was able to return to us.
406 */
407 pc_mask = tvb_get_ntohl(tvb, offset+OFFS_MASK) & 0xffff;
408 if (!(pc_mask & (PC_ERROR_LINK_MAX|PC_ERROR_ALL))) {
409 dissect_rpc_uint32(tvb,tree,hf_mount_pathconf_link_max,offset);
410 }
411 offset += 4;
412
413 if (!(pc_mask & (PC_ERROR_MAX_CANON|PC_ERROR_ALL))) {
414 proto_tree_add_item(tree,
415 hf_mount_pathconf_max_canon,tvb,offset+2,2,
416 tvb_get_ntohs(tvb,offset)&0xffff);
417 }
418 offset += 4;
419
420 if (!(pc_mask & (PC_ERROR_MAX_INPUT|PC_ERROR_ALL))) {
421 proto_tree_add_item(tree,
422 hf_mount_pathconf_max_input,tvb,offset+2,2,
423 tvb_get_ntohs(tvb,offset)&0xffff);
424 }
425 offset += 4;
426
427 if (!(pc_mask & (PC_ERROR_NAME_MAX|PC_ERROR_ALL))) {
428 proto_tree_add_item(tree,
429 hf_mount_pathconf_name_max,tvb,offset+2,2,
430 tvb_get_ntohs(tvb,offset)&0xffff);
431 }
432 offset += 4;
433
434 if (!(pc_mask & (PC_ERROR_PATH_MAX|PC_ERROR_ALL))) {
435 proto_tree_add_item(tree,
436 hf_mount_pathconf_path_max,tvb,offset+2,2,
437 tvb_get_ntohs(tvb,offset)&0xffff);
438 }
439 offset += 4;
440
441 if (!(pc_mask & (PC_ERROR_PIPE_BUF|PC_ERROR_ALL))) {
442 proto_tree_add_item(tree,
443 hf_mount_pathconf_pipe_buf,tvb,offset+2,2,
444 tvb_get_ntohs(tvb,offset)&0xffff);
445 }
446 offset += 4;
447
448 offset += 4; /* skip "pc_xxx" pad field */
449
450 if (!(pc_mask & (PC_ERROR_VDISABLE|PC_ERROR_ALL))) {
451 proto_tree_add_item(tree,
452 hf_mount_pathconf_vdisable,tvb,offset+3,1,
453 tvb_get_ntohs(tvb,offset)&0xffff);
454 }
455 offset += 4;
456
457 proto_tree_add_bitmask(tree, tvb, offset+2, hf_mount_pathconf_mask, ett_mount_pathconf_mask, flags, ENC_BIG_ENDIAN);
458
459 offset += 8;
460 return offset;
461 }
462
463
464 /* RFC 1813, Page 107 */
465 static int
466 dissect_mountstat3(packet_info *pinfo, tvbuff_t *tvb, proto_tree *tree, int offset, int hfindex, uint32_t *status)
467 {
468 uint32_t mountstat3;
469
470 mountstat3 = tvb_get_ntohl(tvb, offset);
471 if(mountstat3){
472 col_append_fstr(
473 pinfo->cinfo, COL_INFO, " Error:%s",
474 val_to_str(mountstat3, mount3_mountstat3,
475 "Unknown (0x%08X)"));
476 }
477
478 offset = dissect_rpc_uint32(tvb,tree,hfindex,offset);
479 *status = mountstat3;
480 return offset;
481 }
482
483 /* RFC 1831, Page 109 */
484 static int
485 dissect_mount3_mnt_reply(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, void* data)
486 {
487 uint32_t status;
488 uint32_t auth_flavors;
489 uint32_t auth_flavor;
490 uint32_t auth_flavor_i;
491 int offset = 0;
492
493 offset = dissect_mountstat3(pinfo,tvb,tree,offset,hf_mount3_status,&status);
494
495 switch (status) {
496 case 0:
497 offset = dissect_nfs3_fh(tvb,offset,pinfo,tree,"fhandle",NULL,(rpc_call_info_value*)data);
498
499 auth_flavors = tvb_get_ntohl(tvb, offset);
500 proto_tree_add_uint(tree,hf_mount_flavors, tvb,
501 offset, 4, auth_flavors);
502 offset += 4;
503 for (auth_flavor_i = 0 ; auth_flavor_i < auth_flavors ; auth_flavor_i++) {
504 auth_flavor = tvb_get_ntohl(tvb, offset);
505 proto_tree_add_uint(tree,hf_mount_flavor, tvb,
506 offset, 4, auth_flavor);
507 offset += 4;
508 }
509 break;
510 default:
511 /* void */
512 break;
513 }
514
515 return offset;
516 }
517
518 static int
519 dissect_sgi_exportlist(tvbuff_t *tvb, int offset, packet_info *pinfo _U_, proto_tree *tree, void* data _U_)
520 {
521 proto_item* exportlist_item = NULL;
522 proto_tree* exportlist_tree = NULL;
523 int old_offset = offset;
524 const char* directory, *options;
525
526 if (tree) {
527 exportlist_item = proto_tree_add_item(tree, hf_mount_exportlist,
528 tvb, offset, -1, ENC_NA);
529 if (exportlist_item)
530 exportlist_tree = proto_item_add_subtree(exportlist_item,
531 ett_mount_exportlist);
532 }
533
534 offset = dissect_rpc_string(tvb, exportlist_tree,
535 hf_mount_exportlist_directory, offset, &directory);
536
537 offset = dissect_rpc_bool(tvb, exportlist_tree,
538 hf_mount_has_options, offset);
539
540 offset = dissect_rpc_string(tvb, exportlist_tree, hf_mount_options,
541 offset, &options);
542
543 if (exportlist_item) {
544 /* now we have a nicer string */
545 proto_item_set_text(exportlist_item,
546 "Export List Entry: %s %s", directory,
547 options);
548 /* now we know, that exportlist is shorter */
549 proto_item_set_len(exportlist_item, offset - old_offset);
550 }
551
552 return offset;
553 }
554
555 static int
556 dissect_mount_exportlist_reply(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, void* data _U_)
557 {
558 return dissect_rpc_list(tvb, pinfo, tree, 0,
559 dissect_sgi_exportlist, NULL);
560 }
561
562 #define ST_RDONLY 0x00000001
563 #define ST_NOSUID 0x00000002
564 #define ST_NOTRUNC 0x00000004
565 #define ST_NODEV 0x20000000
566 #define ST_GRPID 0x40000000
567 #define ST_LOCAL 0x80000000
568
569 static const true_false_string tos_st_rdonly = {
570 "Read-only file system",
571 "Read/Write file system"
572 };
573
574 static const true_false_string tos_st_nosuid = {
575 "Does not support setuid/setgid semantics",
576 "Supports setuid/setgid semantics"
577 };
578
579 static const true_false_string tos_st_notrunc = {
580 "Does not truncate filenames longer than NAME_MAX",
581 "Truncates filenames longer than NAME_MAX"
582 };
583
584 static const true_false_string tos_st_nodev = {
585 "Disallows opening of device files",
586 "Allows opening of device files"
587 };
588
589 static const true_false_string tos_st_grpid = {
590 "Group ID assigned from directory",
591 "Group ID not assigned from directory"
592 };
593
594 static const true_false_string tos_st_local = {
595 "File system is local",
596 "File system is not local"
597 };
598
599 static int
600 dissect_mount_statvfs_reply(tvbuff_t *tvb, packet_info *pinfo _U_, proto_tree *tree, void* data _U_)
601 {
602 static int * const flags[] = {
603 &hf_mount_statvfs_flag_rdonly,
604 &hf_mount_statvfs_flag_nosuid,
605 &hf_mount_statvfs_flag_notrunc,
606 &hf_mount_statvfs_flag_nodev,
607 &hf_mount_statvfs_flag_grpid,
608 &hf_mount_statvfs_flag_local,
609 NULL
610 };
611 int offset = 0;
612
613 dissect_rpc_uint32(tvb, tree, hf_mount_statvfs_bsize, offset);
614 offset += 4;
615
616 dissect_rpc_uint32(tvb, tree, hf_mount_statvfs_frsize, offset);
617 offset += 4;
618
619 dissect_rpc_uint32(tvb, tree, hf_mount_statvfs_blocks, offset);
620 offset += 4;
621
622 dissect_rpc_uint32(tvb, tree, hf_mount_statvfs_bfree, offset);
623 offset += 4;
624
625 dissect_rpc_uint32(tvb, tree, hf_mount_statvfs_bavail, offset);
626 offset += 4;
627
628 dissect_rpc_uint32(tvb, tree, hf_mount_statvfs_files, offset);
629 offset += 4;
630
631 dissect_rpc_uint32(tvb, tree, hf_mount_statvfs_ffree, offset);
632 offset += 4;
633
634 dissect_rpc_uint32(tvb, tree, hf_mount_statvfs_favail, offset);
635 offset += 4;
636
637 dissect_rpc_bytes(tvb, tree, hf_mount_statvfs_basetype, offset,
638 16, true, NULL);
639 offset += 16;
640
641 dissect_rpc_bytes(tvb, tree, hf_mount_statvfs_fstr, offset, 32, false, NULL);
642 offset += 32;
643
644 dissect_rpc_uint32(tvb, tree, hf_mount_statvfs_fsid, offset);
645 offset += 4;
646
647 proto_tree_add_bitmask(tree, tvb, offset, hf_mount_statvfs_flag, ett_mount_statvfs_flag, flags, ENC_BIG_ENDIAN);
648 offset += 4;
649
650 dissect_rpc_uint32(tvb, tree, hf_mount_statvfs_namemax, offset);
651 offset += 4;
652
653 return offset;
654 }
655
656 /* proc number, "proc name", dissect_request, dissect_reply */
657
658 /* Mount protocol version 1, RFC 1094 */
659 static const vsff mount1_proc[] = {
660 { 0, "NULL",
661 dissect_rpc_void, dissect_rpc_void },
662 { MOUNTPROC_MNT, "MNT",
663 dissect_mount_dirpath_call, dissect_mount1_mnt_reply },
664 { MOUNTPROC_DUMP, "DUMP",
665 dissect_rpc_void, dissect_mount_dump_reply },
666 { MOUNTPROC_UMNT, "UMNT",
667 dissect_mount_dirpath_call, dissect_rpc_void },
668 { MOUNTPROC_UMNTALL, "UMNTALL",
669 dissect_rpc_void, dissect_rpc_void },
670 { MOUNTPROC_EXPORT, "EXPORT",
671 dissect_rpc_void, dissect_mount_export_reply },
672 { MOUNTPROC_EXPORTALL, "EXPORTALL",
673 dissect_rpc_void, dissect_mount_export_reply },
674 { 0, NULL, NULL, NULL }
675 };
676 static const value_string mount1_proc_vals[] = {
677 { 0, "NULL" },
678 { MOUNTPROC_MNT, "MNT" },
679 { MOUNTPROC_DUMP, "DUMP" },
680 { MOUNTPROC_UMNT, "UMNT" },
681 { MOUNTPROC_UMNTALL, "UMNTALL" },
682 { MOUNTPROC_EXPORT, "EXPORT" },
683 { MOUNTPROC_EXPORTALL, "EXPORTALL" },
684 { 0, NULL }
685 };
686 /* end of mount version 1 */
687
688
689 /* Mount protocol version 2, private communication from somebody at Sun;
690 mount V2 is V1 plus MOUNTPROC_PATHCONF to fetch information for the
691 POSIX "pathconf()" call. */
692 static const vsff mount2_proc[] = {
693 { 0, "NULL",
694 dissect_rpc_void, dissect_rpc_void },
695 { MOUNTPROC_MNT, "MNT",
696 dissect_mount_dirpath_call, dissect_mount1_mnt_reply },
697 { MOUNTPROC_DUMP, "DUMP",
698 dissect_rpc_void, dissect_mount_dump_reply },
699 { MOUNTPROC_UMNT, "UMNT",
700 dissect_mount_dirpath_call, dissect_rpc_void },
701 { MOUNTPROC_UMNTALL, "UMNTALL",
702 dissect_rpc_void, dissect_rpc_void },
703 { MOUNTPROC_EXPORT, "EXPORT",
704 dissect_rpc_void, dissect_mount_export_reply },
705 { MOUNTPROC_EXPORTALL, "EXPORTALL",
706 dissect_rpc_void, dissect_mount_export_reply },
707 { MOUNTPROC_PATHCONF, "PATHCONF",
708 dissect_mount_dirpath_call, dissect_mount_pathconf_reply },
709 { 0, NULL, NULL, NULL }
710 };
711 static const value_string mount2_proc_vals[] = {
712 { 0, "NULL" },
713 { MOUNTPROC_MNT, "MNT" },
714 { MOUNTPROC_DUMP, "DUMP" },
715 { MOUNTPROC_UMNT, "UMNT" },
716 { MOUNTPROC_UMNTALL, "UMNTALL" },
717 { MOUNTPROC_EXPORT, "EXPORT" },
718 { MOUNTPROC_EXPORTALL, "EXPORTALL" },
719 { MOUNTPROC_PATHCONF, "PATHCONF" },
720 { 0, NULL }
721 };
722 /* end of mount version 2 */
723
724
725 /* Mount protocol version 3, RFC 1813 */
726 static const vsff mount3_proc[] = {
727 { 0, "NULL",
728 dissect_rpc_void, dissect_rpc_void },
729 { MOUNTPROC_MNT, "MNT",
730 dissect_mount_dirpath_call, dissect_mount3_mnt_reply },
731 { MOUNTPROC_DUMP, "DUMP",
732 dissect_rpc_void, dissect_mount_dump_reply },
733 { MOUNTPROC_UMNT, "UMNT",
734 dissect_mount_dirpath_call, dissect_rpc_void },
735 { MOUNTPROC_UMNTALL, "UMNTALL",
736 dissect_rpc_void, dissect_rpc_void },
737 { MOUNTPROC_EXPORT, "EXPORT",
738 dissect_rpc_void, dissect_mount_export_reply },
739 { 0, NULL, NULL, NULL }
740 };
741 static const value_string mount3_proc_vals[] = {
742 { 0, "NULL" },
743 { MOUNTPROC_MNT, "MNT" },
744 { MOUNTPROC_DUMP, "DUMP" },
745 { MOUNTPROC_UMNT, "UMNT" },
746 { MOUNTPROC_UMNTALL, "UMNTALL" },
747 { MOUNTPROC_EXPORT, "EXPORT" },
748 { 0, NULL }
749 };
750 /* end of Mount protocol version 3 */
751
752 static const rpc_prog_vers_info mount_vers_info[] = {
753 { 1, mount1_proc, &hf_mount_procedure_v1 },
754 { 2, mount2_proc, &hf_mount_procedure_v2 },
755 { 3, mount3_proc, &hf_mount_procedure_v3 },
756 };
757
758 /* SGI mount protocol version 1; actually the same as v1 plus
759 MOUNTPROC_EXPORTLIST and MOUNTPROC_STATVFS */
760
761 static const vsff sgi_mount1_proc[] = {
762 { 0, "NULL",
763 dissect_rpc_void, dissect_rpc_void },
764 { MOUNTPROC_MNT, "MNT",
765 dissect_mount_dirpath_call, dissect_mount1_mnt_reply },
766 { MOUNTPROC_DUMP, "DUMP",
767 dissect_rpc_void, dissect_mount_dump_reply },
768 { MOUNTPROC_UMNT, "UMNT",
769 dissect_mount_dirpath_call, dissect_rpc_void },
770 { MOUNTPROC_UMNTALL, "UMNTALL",
771 dissect_rpc_void, dissect_rpc_void },
772 { MOUNTPROC_EXPORT, "EXPORT",
773 dissect_rpc_void, dissect_mount_export_reply },
774 { MOUNTPROC_EXPORTALL, "EXPORTALL",
775 dissect_rpc_void, dissect_mount_export_reply },
776 { MOUNTPROC_EXPORTLIST,"EXPORTLIST",
777 dissect_rpc_void, dissect_mount_exportlist_reply },
778 { MOUNTPROC_STATVFS, "STATVFS",
779 dissect_mount_dirpath_call, dissect_mount_statvfs_reply },
780 { 0, NULL, NULL, NULL }
781 };
782 static const value_string sgi_mount1_proc_vals[] = {
783 { 0, "NULL" },
784 { MOUNTPROC_MNT, "MNT" },
785 { MOUNTPROC_DUMP, "DUMP" },
786 { MOUNTPROC_UMNT, "UMNT" },
787 { MOUNTPROC_UMNTALL, "UMNTALL" },
788 { MOUNTPROC_EXPORT, "EXPORT" },
789 { MOUNTPROC_EXPORTALL, "EXPORTALL" },
790 { MOUNTPROC_EXPORTLIST, "EXPORTLIST" },
791 { MOUNTPROC_STATVFS, "STATVFS" },
792 { 0, NULL }
793 };
794 /* end of SGI mount protocol version 1 */
795
796 static const rpc_prog_vers_info sgi_mount_vers_info[] = {
797 { 1, sgi_mount1_proc, &hf_sgi_mount_procedure_v1 },
798 };
799
800 void
801 proto_register_mount(void)
802 {
803 static hf_register_info hf[] = {
804 { &hf_mount_procedure_v1, {
805 "V1 Procedure", "mount.procedure_v1", FT_UINT32, BASE_DEC,
806 VALS(mount1_proc_vals), 0, NULL, HFILL }},
807 { &hf_mount_procedure_v2, {
808 "V2 Procedure", "mount.procedure_v2", FT_UINT32, BASE_DEC,
809 VALS(mount2_proc_vals), 0, NULL, HFILL }},
810 { &hf_mount_procedure_v3, {
811 "V3 Procedure", "mount.procedure_v3", FT_UINT32, BASE_DEC,
812 VALS(mount3_proc_vals), 0, NULL, HFILL }},
813 { &hf_sgi_mount_procedure_v1, {
814 "SGI V1 procedure", "mount.procedure_sgi_v1", FT_UINT32, BASE_DEC,
815 VALS(sgi_mount1_proc_vals), 0, NULL, HFILL }},
816 { &hf_mount_path, {
817 "Path", "mount.path", FT_STRING, BASE_NONE,
818 NULL, 0, NULL, HFILL }},
819 { &hf_mount3_status, {
820 "Status", "mount.status", FT_UINT32, BASE_DEC,
821 VALS(mount3_mountstat3), 0, NULL, HFILL }},
822 { &hf_mount_mountlist_hostname, {
823 "Hostname", "mount.dump.hostname", FT_STRING, BASE_NONE,
824 NULL, 0, NULL, HFILL }},
825 { &hf_mount_mountlist_directory, {
826 "Directory", "mount.dump.directory", FT_STRING, BASE_NONE,
827 NULL, 0, NULL, HFILL }},
828 { &hf_mount_mountlist, {
829 "Mount List Entry", "mount.dump.entry", FT_NONE, BASE_NONE,
830 NULL, 0, NULL, HFILL }},
831 { &hf_mount_groups_group, {
832 "Group", "mount.export.group", FT_STRING, BASE_NONE,
833 NULL, 0, NULL, HFILL }},
834 { &hf_mount_groups, {
835 "Groups", "mount.export.groups", FT_NONE, BASE_NONE,
836 NULL, 0, NULL, HFILL }},
837 { &hf_mount_has_options, {
838 "Has options", "mount.export.has_options", FT_UINT32,
839 BASE_DEC, NULL, 0, NULL, HFILL }},
840 { &hf_mount_options, {
841 "Options", "mount.export.options", FT_STRING, BASE_NONE,
842 NULL, 0, NULL, HFILL }},
843 { &hf_mount_exportlist_directory, {
844 "Directory", "mount.export.directory", FT_STRING, BASE_NONE,
845 NULL, 0, NULL, HFILL }},
846 { &hf_mount_exportlist, {
847 "Export List Entry", "mount.export.entry", FT_NONE, BASE_NONE,
848 NULL, 0, NULL, HFILL }},
849 { &hf_mount_pathconf_link_max, {
850 "Maximum number of links to a file", "mount.pathconf.link_max",
851 FT_UINT32, BASE_DEC,
852 NULL, 0, "Maximum number of links allowed to a file", HFILL }},
853 { &hf_mount_pathconf_max_canon, {
854 "Maximum terminal input line length", "mount.pathconf.max_canon",
855 FT_UINT16, BASE_DEC,
856 NULL, 0, "Max tty input line length", HFILL }},
857 { &hf_mount_pathconf_max_input, {
858 "Terminal input buffer size", "mount.pathconf.max_input",
859 FT_UINT16, BASE_DEC,
860 NULL, 0, NULL, HFILL }},
861 { &hf_mount_pathconf_name_max, {
862 "Maximum file name length", "mount.pathconf.name_max",
863 FT_UINT16, BASE_DEC,
864 NULL, 0, NULL, HFILL }},
865 { &hf_mount_pathconf_path_max, {
866 "Maximum path name length", "mount.pathconf.path_max",
867 FT_UINT16, BASE_DEC,
868 NULL, 0, NULL, HFILL }},
869 { &hf_mount_pathconf_pipe_buf, {
870 "Pipe buffer size", "mount.pathconf.pipe_buf",
871 FT_UINT16, BASE_DEC,
872 NULL, 0, "Maximum amount of data that can be written atomically to a pipe", HFILL }},
873 { &hf_mount_pathconf_vdisable, {
874 "VDISABLE character", "mount.pathconf.vdisable_char",
875 FT_UINT8, BASE_HEX,
876 NULL, 0, "Character value to disable a terminal special character", HFILL }},
877 { &hf_mount_pathconf_mask, {
878 "Reply error/status bits", "mount.pathconf.mask",
879 FT_UINT16, BASE_HEX,
880 NULL, 0, "Bit mask with error and status bits", HFILL }},
881 { &hf_mount_pathconf_error_all, {
882 "ERROR_ALL", "mount.pathconf.mask.error_all",
883 FT_BOOLEAN, 16, TFS(&tos_error_all),
884 PC_ERROR_ALL, NULL, HFILL }},
885 { &hf_mount_pathconf_error_link_max, {
886 "ERROR_LINK_MAX", "mount.pathconf.mask.error_link_max",
887 FT_BOOLEAN, 16, TFS(&tos_error_link_max),
888 PC_ERROR_LINK_MAX, NULL, HFILL }},
889 { &hf_mount_pathconf_error_max_canon, {
890 "ERROR_MAX_CANON", "mount.pathconf.mask.error_max_canon",
891 FT_BOOLEAN, 16, TFS(&tos_error_max_canon),
892 PC_ERROR_MAX_CANON, NULL, HFILL }},
893 { &hf_mount_pathconf_error_max_input, {
894 "ERROR_MAX_INPUT", "mount.pathconf.mask.error_max_input",
895 FT_BOOLEAN, 16, TFS(&tos_error_max_input),
896 PC_ERROR_MAX_INPUT, NULL, HFILL }},
897 { &hf_mount_pathconf_error_name_max, {
898 "ERROR_NAME_MAX", "mount.pathconf.mask.error_name_max",
899 FT_BOOLEAN, 16, TFS(&tos_error_name_max),
900 PC_ERROR_NAME_MAX, NULL, HFILL }},
901 { &hf_mount_pathconf_error_path_max, {
902 "ERROR_PATH_MAX", "mount.pathconf.mask.error_path_max",
903 FT_BOOLEAN, 16, TFS(&tos_error_path_max),
904 PC_ERROR_PATH_MAX, NULL, HFILL }},
905 { &hf_mount_pathconf_error_pipe_buf, {
906 "ERROR_PIPE_BUF", "mount.pathconf.mask.error_pipe_buf",
907 FT_BOOLEAN, 16, TFS(&tos_error_pipe_buf),
908 PC_ERROR_PIPE_BUF, NULL, HFILL }},
909 { &hf_mount_pathconf_chown_restricted, {
910 "CHOWN_RESTRICTED", "mount.pathconf.mask.chown_restricted",
911 FT_BOOLEAN, 16, TFS(&tos_chown_restricted),
912 PC_CHOWN_RESTRICTED, NULL, HFILL }},
913 { &hf_mount_pathconf_no_trunc, {
914 "NO_TRUNC", "mount.pathconf.mask.no_trunc",
915 FT_BOOLEAN, 16, TFS(&tos_no_trunc),
916 PC_NO_TRUNC, NULL, HFILL }},
917 { &hf_mount_pathconf_error_vdisable, {
918 "ERROR_VDISABLE", "mount.pathconf.mask.error_vdisable",
919 FT_BOOLEAN, 16, TFS(&tos_error_vdisable),
920 PC_ERROR_VDISABLE, NULL, HFILL }},
921 { &hf_mount_statvfs_bsize, {
922 "Block size", "mount.statvfs.f_bsize",
923 FT_UINT32, BASE_DEC, NULL, 0,
924 "File system block size", HFILL }},
925 { &hf_mount_statvfs_frsize, {
926 "Fragment size", "mount.statvfs.f_frsize",
927 FT_UINT32, BASE_DEC, NULL, 0,
928 "File system fragment size", HFILL }},
929 { &hf_mount_statvfs_blocks, {
930 "Blocks", "mount.statvfs.f_blocks",
931 FT_UINT32, BASE_DEC, NULL, 0,
932 "Total fragment sized blocks", HFILL }},
933 { &hf_mount_statvfs_bfree, {
934 "Blocks Free", "mount.statvfs.f_bfree",
935 FT_UINT32, BASE_DEC, NULL, 0,
936 "Free fragment sized blocks", HFILL }},
937 { &hf_mount_statvfs_bavail, {
938 "Blocks Available", "mount.statvfs.f_bavail",
939 FT_UINT32, BASE_DEC, NULL, 0,
940 "Available fragment sized blocks", HFILL }},
941 { &hf_mount_statvfs_files, {
942 "Files", "mount.statvfs.f_files",
943 FT_UINT32, BASE_DEC, NULL, 0,
944 "Total files/inodes", HFILL }},
945 { &hf_mount_statvfs_ffree, {
946 "Files Free", "mount.statvfs.f_ffree",
947 FT_UINT32, BASE_DEC, NULL, 0,
948 "Free files/inodes", HFILL }},
949 { &hf_mount_statvfs_favail, {
950 "Files Available", "mount.statvfs.f_favail",
951 FT_UINT32, BASE_DEC, NULL, 0,
952 "Available files/inodes", HFILL }},
953 { &hf_mount_statvfs_fsid, {
954 "File system ID", "mount.statvfs.f_fsid",
955 FT_UINT32, BASE_DEC, NULL, 0,
956 "File system identifier", HFILL }},
957 { &hf_mount_statvfs_basetype, {
958 "Type", "mount.statvfs.f_basetype",
959 FT_STRING, BASE_NONE, NULL, 0,
960 "File system type", HFILL }},
961 { &hf_mount_statvfs_flag, {
962 "Flags", "mount.statvfs.f_flag",
963 FT_UINT32, BASE_HEX, NULL, 0,
964 "Flags bit-mask", HFILL }},
965 { &hf_mount_statvfs_flag_rdonly, {
966 "ST_RDONLY", "mount.statvfs.f_flag.st_rdonly",
967 FT_BOOLEAN, 32, TFS(&tos_st_rdonly), ST_RDONLY,
968 NULL, HFILL }},
969 { &hf_mount_statvfs_flag_nosuid, {
970 "ST_NOSUID", "mount.statvfs.f_flag.st_nosuid",
971 FT_BOOLEAN, 32, TFS(&tos_st_nosuid), ST_NOSUID,
972 NULL, HFILL }},
973 { &hf_mount_statvfs_flag_notrunc, {
974 "ST_NOTRUNC", "mount.statvfs.f_flag.st_notrunc",
975 FT_BOOLEAN, 32, TFS(&tos_st_notrunc), ST_NOTRUNC,
976 NULL, HFILL }},
977 { &hf_mount_statvfs_flag_nodev, {
978 "ST_NODEV", "mount.statvfs.f_flag.st_nodev",
979 FT_BOOLEAN, 32, TFS(&tos_st_nodev), ST_NODEV,
980 NULL, HFILL }},
981 { &hf_mount_statvfs_flag_grpid, {
982 "ST_GRPID", "mount.statvfs.f_flag.st_grpid",
983 FT_BOOLEAN, 32, TFS(&tos_st_grpid), ST_GRPID,
984 NULL, HFILL }},
985 { &hf_mount_statvfs_flag_local, {
986 "ST_LOCAL", "mount.statvfs.f_flag.st_local",
987 FT_BOOLEAN, 32, TFS(&tos_st_local), ST_LOCAL,
988 NULL, HFILL }},
989 { &hf_mount_statvfs_namemax, {
990 "Maximum file name length", "mount.statvfs.f_namemax",
991 FT_UINT32, BASE_DEC, NULL, 0,
992 NULL, HFILL }},
993 { &hf_mount_statvfs_fstr, {
994 "File system specific string", "mount.statvfs.f_fstr",
995 FT_BYTES, BASE_NONE, NULL, 0,
996 NULL, HFILL }},
997 { &hf_mount_flavors, {
998 "Flavors", "mount.flavors", FT_UINT32, BASE_DEC,
999 NULL, 0, NULL, HFILL }},
1000 { &hf_mount_flavor, {
1001 "Flavor", "mount.flavor", FT_UINT32, BASE_DEC,
1002 VALS(rpc_auth_flavor), 0, NULL, HFILL }},
1003 };
1004 static int *ett[] = {
1005 &ett_mount,
1006 &ett_mount_mountlist,
1007 &ett_mount_groups,
1008 &ett_mount_exportlist,
1009 &ett_mount_pathconf_mask,
1010 &ett_mount_statvfs_flag,
1011 };
1012
1013 proto_mount = proto_register_protocol("Mount Service", "MOUNT",
1014 "mount");
1015 proto_sgi_mount = proto_register_protocol("SGI Mount Service",
1016 "SGI MOUNT", "sgimount");
1017 proto_register_field_array(proto_mount, hf, array_length(hf));
1018 proto_register_subtree_array(ett, array_length(ett));
1019 }
1020
1021 void
1022 proto_reg_handoff_mount(void)
1023 {
1024 /* Register the protocols as RPC */
1025 rpc_init_prog(proto_mount, MOUNT_PROGRAM, ett_mount,
1026 G_N_ELEMENTS(mount_vers_info), mount_vers_info);
1027 rpc_init_prog(proto_sgi_mount, SGI_MOUNT_PROGRAM, ett_mount,
1028 G_N_ELEMENTS(sgi_mount_vers_info), sgi_mount_vers_info);
1029 }
1030
1031 /*
1032 * Editor modelines - https://www.wireshark.org/tools/modelines.html
1033 *
1034 * Local variables:
1035 * c-basic-offset: 8
1036 * tab-width: 8
1037 * indent-tabs-mode: t
1038 * End:
1039 *
1040 * vi: set shiftwidth=8 tabstop=8 noexpandtab:
1041 * :indentSize=8:tabSize=8:noTabs=false:
1042 */
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