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packet-bpv7.h
1/* packet-bpv7.h
2 * Definitions for Bundle Protocol Version 7 dissection.
3 * References:
4 * RFC 9171: https://www.rfc-editor.org/rfc/rfc9171.html
5 *
6 * Copyright 2019-2021, Brian Sipos <[email protected]>
7 *
8 * Wireshark - Network traffic analyzer
9 * By Gerald Combs <[email protected]>
10 * Copyright 1998 Gerald Combs
11 *
12 * SPDX-License-Identifier: LGPL-2.1-or-later
13 */
14#ifndef PACKET_BPV7_H
15#define PACKET_BPV7_H
16
17#include <ws_symbol_export.h>
18#include <epan/tvbuff.h>
19#include <epan/proto.h>
20#include <epan/expert.h>
21
22#ifdef __cplusplus
23extern "C" {
24#endif
25
26/* This dissector defines two layers of protocol:
27 * - The BPv7 bundle format and its block types.
28 * - The BPv7 Administrative Record which is a bundle payload as indicated by
29 * a primary block flag.
30 *
31 * BPv7 block-type-specific data (BTSD) dissectors are registered with the
32 * dissector table "bpv7.block_type" and Administrative Record dissectors
33 * with the table "bpv7.admin_record_type". Both use uint64_t* table keys.
34 * Both use bp_dissector_data_t* as dissector user data.
35 *
36 * There is a BTSD heuristic dissector table "bpv7.btsd" which uses
37 * bp_dissector_data_t* as dissector user data.
38 *
39 * Payload block (block type 1) dissection is additionally handled based on
40 * bundle flags and destination EID as:
41 * - If the bundle flags mark it as administrative, it is dissected as such.
42 * - If the destination is a well-known SSP, the dissector table
43 * "bpv7.payload.dtn_wkssp" is used with the scheme-specific part.
44 * - If the destination is "dtn" scheme, the dissector table
45 * "bpv7.payload.dtn_serv" is used with the service demux (text string).
46 * There is also Decode As behavior for dtn service demux.
47 * - If the destination is "ipn" scheme, the dissector table
48 * "bpv7.payload.ipn_serv" is used with the service number (uint value).
49 * There is also Decode As behavior for ipn service number.
50 * - Finally, fall through to BTSD heuristic dissection.
51 * All payload dissection uses bp_dissector_data_t* as dissector user data.
52 */
53
57typedef enum {
59 BP_CRC_NONE = 0,
61 BP_CRC_16 = 1,
63 BP_CRC_32 = 2,
64} BundleCrcType;
65
69typedef enum {
71 BP_BUNDLE_REQ_DELETION_REPORT = 0x040000,
73 BP_BUNDLE_REQ_DELIVERY_REPORT = 0x020000,
75 BP_BUNDLE_REQ_FORWARDING_REPORT = 0x010000,
77 BP_BUNDLE_REQ_RECEPTION_REPORT = 0x004000,
79 BP_BUNDLE_REQ_STATUS_TIME = 0x000040,
81 BP_BUNDLE_USER_APP_ACK = 0x000020,
83 BP_BUNDLE_NO_FRAGMENT = 0x000004,
85 BP_BUNDLE_PAYLOAD_ADMIN = 0x000002,
87 BP_BUNDLE_IS_FRAGMENT = 0x000001,
88} BundleProcessingFlag;
89
93typedef enum {
95 BP_BLOCK_REMOVE_IF_NO_PROCESS = 0x10,
97 BP_BLOCK_DELETE_IF_NO_PROCESS = 0x04,
99 BP_BLOCK_STATUS_IF_NO_PROCESS = 0x02,
101 BP_BLOCK_REPLICATE_IN_FRAGMENT = 0x01,
102} BlockProcessingFlag;
103
107typedef enum {
108 BP_BLOCKTYPE_INVALID = 0,
110 BP_BLOCKTYPE_PAYLOAD = 1,
112 BP_BLOCKTYPE_PREV_NODE = 6,
114 BP_BLOCKTYPE_BUNDLE_AGE = 7,
116 BP_BLOCKTYPE_HOP_COUNT = 10,
118 BP_BLOCKTYPE_BIB = 11,
120 BP_BLOCKTYPE_BCB = 12,
121} BlockTypeCode;
122
126typedef enum {
128 BP_ADMINTYPE_BUNDLE_STATUS = 1,
129} AdminRecordTypeCode;
130
132typedef struct {
134 uint64_t dtntime;
138
140typedef struct {
144 uint64_t seqno;
146
149WS_DLL_PUBLIC
150int bp_creation_ts_compare(const void *a, const void *b, void *user_data);
151
154typedef enum {
155 EID_SCHEME_DTN = 1,
156 EID_SCHEME_IPN = 2,
157} EidScheme;
158
160typedef struct {
162 int64_t scheme;
165
167 const char *dtn_wkssp;
169 const char *dtn_serv;
171 uint64_t *ipn_serv;
172} bp_eid_t;
173
176WS_DLL_PUBLIC
177bp_eid_t * bp_eid_new(wmem_allocator_t *alloc);
178
181WS_DLL_PUBLIC
182void bp_eid_free(wmem_allocator_t *alloc, bp_eid_t *obj);
183
186WS_DLL_PUBLIC
187bool bp_eid_equal(const void *a, const void *b);
188
196
224
227WS_DLL_PUBLIC
228bp_block_primary_t * bp_block_primary_new(wmem_allocator_t *alloc);
229
232WS_DLL_PUBLIC
233void bp_block_primary_free(wmem_allocator_t *alloc, bp_block_primary_t *obj);
234
260
265WS_DLL_PUBLIC
266bp_block_canonical_t * bp_block_canonical_new(wmem_allocator_t *alloc, uint64_t blk_ix);
267
268WS_DLL_PUBLIC
269void bp_block_canonical_delete(wmem_allocator_t *alloc, bp_block_canonical_t *obj);
270
272typedef struct {
278 const uint64_t *frag_offset;
280 const uint64_t *total_len;
282
290WS_DLL_PUBLIC
291bp_bundle_ident_t * bp_bundle_ident_new(wmem_allocator_t *alloc, const bp_eid_t *src, const bp_creation_ts_t *ts, const uint64_t *off, const uint64_t *len);
292
293WS_DLL_PUBLIC
294void bp_bundle_ident_free(wmem_allocator_t *alloc, bp_bundle_ident_t *obj);
295
298WS_DLL_PUBLIC
299gboolean bp_bundle_ident_equal(const void *a, const void *b);
300
303WS_DLL_PUBLIC
304unsigned bp_bundle_ident_hash(const void *key);
305
332
335WS_DLL_PUBLIC
336bp_bundle_t * bp_bundle_new(wmem_allocator_t *alloc);
337
340WS_DLL_PUBLIC
341void bp_bundle_free(wmem_allocator_t *alloc, bp_bundle_t *obj);
342
355WS_DLL_PUBLIC
356proto_item * proto_tree_add_cbor_eid(proto_tree *tree, int hfindex, int hfindex_uri, packet_info *pinfo, tvbuff_t *tvb, int *offset, bp_eid_t *eid);
357
367
376
377#ifdef __cplusplus
378}
379#endif
380
381#endif /* PACKET_BPV7_H */
Definition address.h:56
Definition packet_info.h:43
Definition proto.h:903
Definition wmem_allocator.h:27
Definition wmem_list.c:23
Definition wmem_map.c:44
Definition packet-bpv7.h:235
tvbuff_t * data
Type-specific data, unencoded.
Definition packet-bpv7.h:254
uint64_t blk_ix
Definition packet-bpv7.h:238
proto_item * item_block
Display item for the whole block.
Definition packet-bpv7.h:240
proto_tree * tree_data
Type-specific data tree.
Definition packet-bpv7.h:256
uint64_t * type_code
Type of this block.
Definition packet-bpv7.h:243
uint64_t crc_type
CRC type code (assumed zero)
Definition packet-bpv7.h:249
uint64_t flags
All flags on this block.
Definition packet-bpv7.h:247
tvbuff_t * crc_field
Raw bytes of CRC field.
Definition packet-bpv7.h:251
uint64_t * block_number
Unique identifier for this block.
Definition packet-bpv7.h:245
Metadata extracted from the primary block.
Definition packet-bpv7.h:198
bp_eid_t * dst_eid
Destination EID.
Definition packet-bpv7.h:206
uint64_t * total_len
Optional bundle total length.
Definition packet-bpv7.h:216
tvbuff_t * crc_field
Raw bytes of CRC field.
Definition packet-bpv7.h:220
uint64_t crc_type
CRC type code (assumed zero)
Definition packet-bpv7.h:218
uint64_t flags
Definition packet-bpv7.h:204
bp_eid_t * rep_nodeid
Report-to NID.
Definition packet-bpv7.h:210
proto_item * item_block
Display item for the whole block.
Definition packet-bpv7.h:200
uint64_t * frag_offset
Optional fragment start offset.
Definition packet-bpv7.h:214
bp_creation_ts_t ts
Creation Timestamp.
Definition packet-bpv7.h:212
bp_eid_t * src_nodeid
Source NID.
Definition packet-bpv7.h:208
Identification of an individual bundle.
Definition packet-bpv7.h:272
bp_creation_ts_t ts
Creation Timestamp.
Definition packet-bpv7.h:276
const uint64_t * frag_offset
Pointer to external optional fragment start offset.
Definition packet-bpv7.h:278
address src
Normalized EID URI for the Source Node ID.
Definition packet-bpv7.h:274
const uint64_t * total_len
Pointer to external optional bundle total length.
Definition packet-bpv7.h:280
Metadata extracted per-bundle.
Definition packet-bpv7.h:307
wmem_map_t * block_types
Definition packet-bpv7.h:325
uint32_t frame_num
Index of the frame.
Definition packet-bpv7.h:309
bp_bundle_ident_t * ident
Bundle identity derived from primary data.
Definition packet-bpv7.h:315
unsigned * pyld_start
Payload BTSD start offset in bundle TVB.
Definition packet-bpv7.h:328
nstime_t frame_time
Timestamp on the frame (end time if reassembled)
Definition packet-bpv7.h:313
unsigned * pyld_len
Payload BTSD length.
Definition packet-bpv7.h:330
wmem_map_t * block_nums
Definition packet-bpv7.h:322
uint8_t layer_num
Layer within the frame.
Definition packet-bpv7.h:311
bp_block_primary_t * primary
Required primary block.
Definition packet-bpv7.h:317
wmem_list_t * blocks
Additional blocks in order (type bp_block_canonical_t)
Definition packet-bpv7.h:319
Creation Timestamp used to correlate bundles.
Definition packet-bpv7.h:140
bp_dtn_time_t abstime
Absolute time.
Definition packet-bpv7.h:142
uint64_t seqno
Sequence number.
Definition packet-bpv7.h:144
Definition packet-bpv7.h:370
bp_bundle_t * bundle
The overall bundle being decoded (so far)
Definition packet-bpv7.h:372
bp_block_canonical_t * block
This block being decoded.
Definition packet-bpv7.h:374
DTN time with derived UTC time.
Definition packet-bpv7.h:132
nstime_t utctime
Converted to UTC.
Definition packet-bpv7.h:136
uint64_t dtntime
DTN time.
Definition packet-bpv7.h:134
Metadata from a Endpoint ID.
Definition packet-bpv7.h:160
uint64_t * ipn_serv
Optional IPN-scheme service name.
Definition packet-bpv7.h:171
const char * dtn_wkssp
Optional DTN-scheme well-known SSP.
Definition packet-bpv7.h:167
int64_t scheme
Scheme ID number.
Definition packet-bpv7.h:162
address uri
Derived URI text as address.
Definition packet-bpv7.h:164
const char * dtn_serv
Optional DTN-scheme service name.
Definition packet-bpv7.h:169
Metadata for an entire file.
Definition packet-bpv7.h:359
wmem_map_t * admin_status
Definition packet-bpv7.h:365
wmem_map_t * bundles
Map from a bundle ID (bp_bundle_ident_t) to wmem_list_t of bundle (bp_bundle_t)
Definition packet-bpv7.h:361
Definition nstime.h:26
Security marking metadata.
Definition packet-bpv7.h:190
wmem_map_t * data_i
Block numbers marking the data as security integrity protected.
Definition packet-bpv7.h:192
wmem_map_t * data_c
Block numbers marking the data as security-modified and not decodable.
Definition packet-bpv7.h:194
Definition tvbuff-int.h:35