summaryrefslogtreecommitdiffstats
path: root/epan/dissectors/packet-pnrp.c
diff options
context:
space:
mode:
authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-10 20:34:10 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-10 20:34:10 +0000
commite4ba6dbc3f1e76890b22773807ea37fe8fa2b1bc (patch)
tree68cb5ef9081156392f1dd62a00c6ccc1451b93df /epan/dissectors/packet-pnrp.c
parentInitial commit. (diff)
downloadwireshark-e4ba6dbc3f1e76890b22773807ea37fe8fa2b1bc.tar.xz
wireshark-e4ba6dbc3f1e76890b22773807ea37fe8fa2b1bc.zip
Adding upstream version 4.2.2.upstream/4.2.2
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'epan/dissectors/packet-pnrp.c')
-rw-r--r--epan/dissectors/packet-pnrp.c1487
1 files changed, 1487 insertions, 0 deletions
diff --git a/epan/dissectors/packet-pnrp.c b/epan/dissectors/packet-pnrp.c
new file mode 100644
index 00000000..f97cf9b9
--- /dev/null
+++ b/epan/dissectors/packet-pnrp.c
@@ -0,0 +1,1487 @@
+/* packet-pnrp.c
+ * Routines for Peer Name Resolution Protocol (PNRP) dissection
+ *
+ * Copyright 2010, Jan Gerbecks <jan.gerbecks@stud.uni-due.de>
+ *
+ * Wireshark - Network traffic analyzer
+ * By Gerald Combs <gerald@wireshark.org>
+ * Copyright 1998 Gerald Combs
+ *
+ * SPDX-License-Identifier: GPL-2.0-or-later
+ */
+
+/* The official Documentation for the Peer Name Resolution Protocol
+ * ([MS-PNRP]) can be found at
+ *
+ * https://docs.microsoft.com/en-us/openspecs/windows_protocols/ms-pnrp
+ *
+ * This dissector is based on Revision 6.1.2
+ */
+
+#include "config.h"
+
+#include <epan/packet.h>
+#include <epan/exceptions.h>
+#include <epan/reassemble.h>
+
+#define PROTONAME "Peer Name Resolution Protocol"
+#define PROTOSHORTNAME "PNRP"
+#define PROTOABBREV "pnrp"
+
+#define PNRP_PORT 3540
+
+#define FIELDID_LENGTH = 2
+#define LENGTH_FIELD = 2
+
+/* Define all FieldIDs here, so we can use them later on in switch statement etc */
+#define PNRP_HEADER 0x0010
+#define PNRP_HEADER_ACKED 0x0018
+#define PNRP_ID 0x0030
+#define TARGET_PNRP_ID 0x0038
+#define VALIDATE_PNRP_ID 0x0039
+#define FLAGS_FIELD 0x0040
+#define FLOOD_CONTROLS 0x0043
+#define SOLICIT_CONTROLS 0x0044
+#define LOOKUP_CONTROLS 0x0045
+#define EXTENDED_PAYLOAD 0x005A
+#define PNRP_ID_ARRAY 0x0060
+#define CERT_CHAIN 0x0080
+#define WCHAR 0x0084
+#define CLASSIFIER 0x0085
+#define HASHED_NONCE 0x0092
+#define NONCE 0x0093
+#define SPLIT_CONTROLS 0x0098
+#define ROUTING_ENTRY 0x009A
+#define VALIDATE_CPA 0x009B
+#define REVOKE_CPA 0x009C
+#define IPV6_ENDPOINT 0x009D
+#define IPV6_ENDPOINT_ARRAY 0x009E
+
+/* Define all message types */
+#define SOLICIT 0x01
+#define ADVERTISE 0x02
+#define REQUEST 0x03
+#define FLOOD 0x04
+#define INQUIRE 0x07
+#define AUTHORITY 0x08
+#define ACK 0x09
+#define LOOKUP 0x0B
+
+/* Define flags mask fields */
+#define FLAGS_INQUIRE_RESERVED1 0xFFE0
+#define FLAGS_INQUIRE_A 0x0010
+#define FLAGS_INQUIRE_X 0x0008
+#define FLAGS_INQUIRE_C 0x0004
+#define FLAGS_INQUIRE_RESERVED2 0x0003
+
+#define FLAGS_AUTHORITY_RESERVED1 0xFC00
+#define FLAGS_AUTHORITY_L 0x0200
+#define FLAGS_AUTHORITY_RESERVED2 0x01F0
+#define FLAGS_AUTHORITY_B 0x0008
+#define FLAGS_AUTHORITY_RESERVED3 0x0006
+#define FLAGS_AUTHORITY_N 0x0001
+
+#define FLAGS_LOOKUPCONTROLS_RESERVED 0xFFFC
+#define FLAGS_LOOKUPCONTROLS_A 0x0002
+#define FLAGS_LOOKUPCONTROLS_0 0x0001
+
+#define FLAGS_ENCODED_CPA_RESERVED 0xC0
+#define FLAGS_ENCODED_CPA_X 0x20
+#define FLAGS_ENCODED_CPA_U 0x02
+#define FLAGS_ENCODED_CPA_R 0x01
+#define FLAGS_ENCODED_CPA_A 0x04
+#define FLAGS_ENCODED_CPA_C 0x08
+#define FLAGS_ENCODED_CPA_F 0x10
+
+void proto_register_pnrp(void);
+void proto_reg_handoff_pnrp(void);
+
+static dissector_handle_t pnrp_handle;
+
+/* Define all helper methods */
+static void dissect_pnrp_ids(tvbuff_t *tvb, gint offset, gint length, proto_tree *tree);
+static void dissect_ipv6_address(tvbuff_t *tvb, gint offset, gint length, proto_tree *tree);
+static void dissect_route_entry(tvbuff_t *tvb, gint offset, gint length, proto_tree *tree);
+static void dissect_ipv6_endpoint_structure(tvbuff_t *tvb, gint offset, gint length, proto_tree *tree);
+static void dissect_encodedCPA_structure(tvbuff_t *tvb, gint offset, gint length, proto_tree *tree);
+static void dissect_payload_structure(tvbuff_t *tvb, gint offset, gint length, proto_tree *tree);
+static void dissect_publicKey_structure(tvbuff_t *tvb, gint offset, gint length, proto_tree *tree);
+static void dissect_signature_structure(tvbuff_t *tvb, gint offset, gint length, proto_tree *tree);
+
+/* Define global variables
+ ----------------------------*/
+static int proto_pnrp = -1;
+
+/* Define FieldIDs */
+static const value_string fieldID[] = {
+ { PNRP_HEADER, "PNRP_HEADER" },
+ { PNRP_HEADER_ACKED, "PNRP_HEADER_ACKED" },
+ { PNRP_ID, "PNRP_ID" },
+ { TARGET_PNRP_ID, "TARGET_PNRP_ID" },
+ { VALIDATE_PNRP_ID, "VALIDATE_PNRP_ID" },
+ { FLAGS_FIELD, "FLAGS_FIELD" },
+ { FLOOD_CONTROLS, "FLOOD_CONTROLS" },
+ { SOLICIT_CONTROLS, "SOLICIT_CONTROLS" },
+ { LOOKUP_CONTROLS, "LOOKUP_CONTROLS" },
+ { EXTENDED_PAYLOAD, "EXTENDED_PAYLOAD" },
+ { PNRP_ID_ARRAY, "PNRP_ID_ARRAY" },
+ { CERT_CHAIN, "CERT_CHAIN" },
+ { WCHAR, "WCHAR" },
+ { CLASSIFIER, "CLASSIFIER" },
+ { HASHED_NONCE, "HASHED_NONCE" },
+ { NONCE, "NONCE" },
+ { SPLIT_CONTROLS, "SPLIT_CONTROLS" },
+ { ROUTING_ENTRY, "ROUTING_ENTRY" },
+ { VALIDATE_CPA, "VALIDATE_CPA" },
+ { REVOKE_CPA, "REVOKE_CPA" },
+ { IPV6_ENDPOINT, "IPV6_ENDPOINT" },
+ { IPV6_ENDPOINT_ARRAY, "IPV6_ENDPOINT_ARRAY" },
+ {0, NULL}
+};
+
+/* Define Packetnames */
+static const value_string messageType[] = {
+ { SOLICIT, "SOLICIT" },
+ { ADVERTISE, "ADVERTISE" },
+ { REQUEST, "REQUEST" },
+ { FLOOD, "FLOOD" },
+ { INQUIRE, "INQUIRE" },
+ { AUTHORITY, "AUTHORITY" },
+ { ACK, "ACK" },
+ { LOOKUP, "LOOKUP" },
+ {0, NULL}
+};
+/* Define Solicit Type */
+static const value_string solicitType[] = {
+ { 0x00, "SOLICIT_TYPE_ANY" },
+ { 0x01, "SOLICIT_TYPE_LOCAL" },
+ {0, NULL}
+};
+/* Define Resolve Criteria for Lookup Controls */
+static const value_string resolveCriteria[] = {
+ { 0x00, "SEARCH_OPCODE_NONE" },
+ { 0x01, "SEARCH_OPCODE_ANY_PEERNAME" },
+ { 0x02, "SEARCH_OPCODE_NEAREST_PEERNAME" },
+ { 0x04, "SEARCH_OPCODE_NEAREST64_PEERNAME" },
+ { 0x08, "SEARCH_OPCODE_UPPER_BITS" },
+ {0, NULL}
+};
+/* Define Reason Code for Lookup Controls */
+static const value_string reasonCode[] = {
+ { 0x00, "REASON_APP_REQUEST" },
+ { 0x01, "REASON_REGISTRATION" },
+ { 0x02, "REASON_CACHE_MAINTENANCE" },
+ { 0x03, "REASON_SPLIT_DETECTION" },
+ {0, NULL}
+};
+
+/* Define IDs for subcomponents */
+/* Message Header */
+static gint hf_pnrp_header = -1;
+static gint hf_pnrp_header_fieldID = -1;
+static gint hf_pnrp_header_length = -1;
+static gint hf_pnrp_header_ident = -1;
+static gint hf_pnrp_header_versionMajor = -1;
+static gint hf_pnrp_header_versionMinor = -1;
+static gint hf_pnrp_header_messageType = -1;
+static gint hf_pnrp_header_messageID = -1;
+/* Message Body */
+static gint hf_pnrp_message_type = -1;
+static gint hf_pnrp_message_length = -1;
+static gint hf_pnrp_message_headerack = -1;
+static gint hf_pnrp_message_pnrpID = -1; /* Generic variable to display pnrp ID in various situations */
+/* Inquire Message Flags */
+static gint hf_pnrp_message_inquire_flags = -1;
+static gint hf_pnrp_message_inquire_flags_reserved1 = -1;
+static gint hf_pnrp_message_inquire_flags_Abit = -1;
+static gint hf_pnrp_message_inquire_flags_Xbit = -1;
+static gint hf_pnrp_message_inquire_flags_Cbit = -1;
+static gint hf_pnrp_message_inquire_flags_reserved2 = -1;
+
+static gint hf_pnrp_padding = -1;
+
+static int * const inquire_flags[] = {
+ &hf_pnrp_message_inquire_flags_reserved1,
+ &hf_pnrp_message_inquire_flags_Abit,
+ &hf_pnrp_message_inquire_flags_Xbit,
+ &hf_pnrp_message_inquire_flags_Cbit,
+ &hf_pnrp_message_inquire_flags_reserved2,
+ NULL
+};
+
+/* Classifier */
+static gint hf_pnrp_message_classifier_unicodeCount = -1;
+static gint hf_pnrp_message_classifier_arrayLength = -1;
+static gint hf_pnrp_message_classifier_entryLength = -1;
+static gint hf_pnrp_message_classifier_string = -1;
+/* ACK Message Flags */
+static gint hf_pnrp_message_ack_flags_reserved = -1;
+static gint hf_pnrp_message_ack_flags_Nbit = -1;
+/* SplitControls */
+static gint hf_pnrp_message_splitControls_authorityBuffer = -1;
+/* IPv6 Endpoint Array */
+static gint hf_pnrp_message_ipv6EndpointArray_NumberOfEntries = -1;
+static gint hf_pnrp_message_ipv6EndpointArray_ArrayLength = -1;
+static gint hf_pnrp_message_ipv6EndpointArray_EntryLength = -1;
+/* AUTHORITY Message Flags */
+static gint hf_pnrp_message_authority_flags = -1;
+static gint hf_pnrp_message_authority_flags_reserved1 = -1;
+static gint hf_pnrp_message_authority_flags_Lbit = -1;
+static gint hf_pnrp_message_authority_flags_reserved2 = -1;
+static gint hf_pnrp_message_authority_flags_Bbit = -1;
+static gint hf_pnrp_message_authority_flags_reserved3= -1;
+static gint hf_pnrp_message_authority_flags_Nbit = -1;
+
+static int * const authority_flags[] = {
+ &hf_pnrp_message_authority_flags_reserved1,
+ &hf_pnrp_message_authority_flags_Lbit,
+ &hf_pnrp_message_authority_flags_reserved2,
+ &hf_pnrp_message_authority_flags_Bbit,
+ &hf_pnrp_message_authority_flags_reserved3,
+ &hf_pnrp_message_authority_flags_Nbit,
+ NULL
+};
+
+/* Flood Control Flags */
+static gint hf_pnrp_message_flood_flags_reserved1 = -1;
+static gint hf_pnrp_message_flood_flags_Dbit = -1;
+
+/* PNRP ID Array */
+static gint hf_pnrp_message_idArray_NumEntries = -1;
+static gint hf_pnrp_message_idArray_Length = -1;
+static gint hf_pnrp_message_ElementFieldType = -1;
+static gint hf_pnrp_message_idarray_Entrylength = -1;
+
+static gint hf_pnrp_message_solicitType = -1;
+static gint hf_pnrp_message_certChain = -1;
+static gint hf_pnrp_message_nonce = -1;
+static gint hf_pnrp_message_hashednonce = -1;
+static gint hf_pnrp_message_ipv6 = -1;
+
+/* Encoded CPA */
+static gint hf_pnrp_encodedCPA = -1;
+static gint hf_pnrp_encodedCPA_length = -1;
+static gint hf_pnrp_encodedCPA_minorVersion = -1;
+static gint hf_pnrp_encodedCPA_majorVersion = -1;
+static gint hf_pnrp_encodedCPA_flags = -1;
+static gint hf_pnrp_encodedCPA_flags_reserved = -1;
+static gint hf_pnrp_encodedCPA_flags_Xbit = -1;
+static gint hf_pnrp_encodedCPA_flags_Fbit = -1;
+static gint hf_pnrp_encodedCPA_flags_Cbit = -1;
+static gint hf_pnrp_encodedCPA_flags_Abit = -1;
+static gint hf_pnrp_encodedCPA_flags_Ubit = -1;
+static gint hf_pnrp_encodedCPA_flags_Rbit = -1;
+static int * const encodedCPA_flags[] = {
+ &hf_pnrp_encodedCPA_flags_reserved,
+ &hf_pnrp_encodedCPA_flags_Xbit,
+ &hf_pnrp_encodedCPA_flags_Fbit,
+ &hf_pnrp_encodedCPA_flags_Cbit,
+ &hf_pnrp_encodedCPA_flags_Abit,
+ &hf_pnrp_encodedCPA_flags_Ubit,
+ &hf_pnrp_encodedCPA_flags_Rbit,
+ NULL
+};
+static gint hf_pnrp_encodedCPA_notAfter = -1;
+static gint hf_pnrp_encodedCPA_serviceLocation = -1;
+static gint hf_pnrp_encodedCPA_binaryAuthority = -1;
+static gint hf_pnrp_encodedCPA_classifierHash = -1;
+static gint hf_pnrp_encodedCPA_friendlyName = -1;
+
+/* Lookup Controls */
+static gint hf_pnrp_message_lookupControls_flags = -1;
+static gint hf_pnrp_message_lookupControls_flags_reserved = -1;
+static gint hf_pnrp_message_lookupControls_flags_Abit = -1;
+static gint hf_pnrp_message_lookupControls_flags_0bit = -1;
+static int * const lookupControls_flags[] = {
+ &hf_pnrp_message_lookupControls_flags_reserved,
+ &hf_pnrp_message_lookupControls_flags_Abit,
+ &hf_pnrp_message_lookupControls_flags_0bit,
+ NULL
+};
+static gint hf_pnrp_message_lookupControls_precision =-1;
+static gint hf_pnrp_message_lookupControls_resolveCriteria =-1;
+static gint hf_pnrp_message_lookupControls_reasonCode =-1;
+
+/* Dissect Route Entry */
+static gint hf_pnrp_message_routeEntry_portNumber = -1;
+static gint hf_pnrp_message_routeEntry_flags = -1;
+static gint hf_pnrp_message_routeEntry_addressCount = -1;
+
+/* Public Key Structure */
+static gint hf_pnrp_publicKey_objID = -1;
+static gint hf_pnrp_publicKey_publicKeyData = -1;
+
+/* Signature Structure */
+static gint hf_pnrp_signature_signatureData = -1;
+
+/* Generated from convert_proto_tree_add_text.pl */
+static int hf_pnrp_payload_port = -1;
+static int hf_pnrp_signature_length = -1;
+static int hf_pnrp_signature_structure_length = -1;
+static int hf_pnrp_encodedCPA_total_bytes_of_payload = -1;
+static int hf_pnrp_signature_hash_id = -1;
+static int hf_pnrp_message_flags = -1;
+static int hf_pnrp_encodedCPA_number_of_service_addresses = -1;
+static int hf_pnrp_payload_iana_proto = -1;
+static int hf_pnrp_reserved8 = -1;
+static int hf_pnrp_reserved16 = -1;
+static int hf_pnrp_encodedCPA_service_address_length = -1;
+static int hf_pnrp_message_data = -1;
+static int hf_pnrp_publicKey_length_of_structure = -1;
+static int hf_pnrp_publicKey_size_of_cbdata = -1;
+static int hf_pnrp_payload_type = -1;
+static int hf_pnrp_publicKey_size_of_algorithm_oid = -1;
+static int hf_pnrp_message_port_number = -1;
+static int hf_pnrp_publicKey_reserved = -1;
+static int hf_pnrp_encodedCPA_friendlyName_length = -1;
+static int hf_pnrp_message_offset = -1;
+static int hf_pnrp_publicKey_unused_bits = -1;
+static int hf_pnrp_length_of_data = -1;
+static int hf_pnrp_encodedCPA_number_of_payload_structures = -1;
+
+/* Reassembly */
+static int hf_pnrp_fragments = -1;
+static int hf_pnrp_fragment = -1;
+static int hf_pnrp_fragment_overlap = -1;
+static int hf_pnrp_fragment_overlap_conflict = -1;
+static int hf_pnrp_fragment_multiple_tails = -1;
+static int hf_pnrp_fragment_too_long_fragment = -1;
+static int hf_pnrp_fragment_error = -1;
+static int hf_pnrp_fragment_count = -1;
+static int hf_pnrp_reassembled_in = -1;
+static int hf_pnrp_reassembled_length = -1;
+static int hf_pnrp_reassembled_data = -1;
+static int hf_pnrp_fragmented_payload = -1;
+
+/* Define variables to reference subtrees */
+static gint ett_pnrp = -1;
+static gint ett_pnrp_header = -1;
+static gint ett_pnrp_message = -1;
+static gint ett_pnrp_message_inquire_flags = -1;
+static gint ett_pnrp_message_authority_flags = -1;
+static gint ett_pnrp_message_encodedCPA = -1;
+static gint ett_pnrp_message_encodedCPA_flags = -1;
+static gint ett_pnrp_message_lookupControls_flags = -1;
+static gint ett_pnrp_message_payloadStructure = -1;
+static gint ett_pnrp_message_publicKeyStructure = -1;
+static gint ett_pnrp_message_signatureStructure = -1;
+static gint ett_pnrp_fragment = -1;
+static gint ett_pnrp_fragments = -1;
+
+static reassembly_table pnrp_reassembly_table;
+
+static const fragment_items pnrp_frag_items = {
+ &ett_pnrp_fragment,
+ &ett_pnrp_fragments,
+ &hf_pnrp_fragments,
+ &hf_pnrp_fragment,
+ &hf_pnrp_fragment_overlap,
+ &hf_pnrp_fragment_overlap_conflict,
+ &hf_pnrp_fragment_multiple_tails,
+ &hf_pnrp_fragment_too_long_fragment,
+ &hf_pnrp_fragment_error,
+ &hf_pnrp_fragment_count,
+ &hf_pnrp_reassembled_in,
+ &hf_pnrp_reassembled_length,
+ &hf_pnrp_reassembled_data,
+ "PNRP fragments"
+};
+
+/* Do actual dissection work */
+static int dissect_pnrp(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, void *data _U_)
+{
+ /* Variable declaration */
+ int offset, start_offset;
+ gint padding_bytes;
+ guint8 message_type;
+ guint16 field_type;
+ unsigned data_length;
+ proto_item *ti;
+ proto_tree *pnrp_tree;
+ proto_item *pnrp_header_item;
+ proto_tree *pnrp_header_tree;
+ proto_item *pnrp_message_tree = NULL;
+ guint32 msg_id;
+
+ /*----------------------------------------
+ * Validate if it is really a PNRP Packet
+ *----------------------------------------*/
+ /* Check that there's enough data */
+ data_length = tvb_captured_length(tvb);
+
+ /* Shortest Message is ACK -> 12 Bytes for Header plus 8 Bytes for Data */
+ if (data_length < 12+8 )
+ {
+ return 0;
+ }
+
+ /* Check some values from the packet header */
+ /* First 2 bytes must be 0x0010 */
+ if (tvb_get_ntohs(tvb,0) != PNRP_HEADER )
+ {
+ return 0;
+ }
+ /* Length of Header must be 0x000C = 12 */
+ if (tvb_get_ntohs(tvb,2) != 0x000C) {
+ return 0;
+ }
+ /* Identifier must 0x51 */
+ if (tvb_get_guint8(tvb,4) != 0x51) {
+ return 0;
+ }
+
+
+ /* Assign Values to Variables */
+ /* Use to track data */
+ offset= 0;
+ /* Get the message Information beforehand */
+ message_type = tvb_get_guint8(tvb,7);
+
+
+ /* Simply Display the Protocol Name in the INFO column */
+ col_set_str(pinfo->cinfo, COL_PROTOCOL, "PNRP");
+ /* Clear out stuff in the info column */
+ col_add_fstr(pinfo->cinfo, COL_INFO, "PNRP %s Message ",
+ val_to_str(message_type, messageType, "Unknown (0x%02x)"));
+
+
+ /* Lets add a subtree to our dissection to display the info */
+ ti = proto_tree_add_item(tree, proto_pnrp, tvb, 0, -1, ENC_NA);
+ proto_item_append_text(ti, ", Message Type %s",
+ val_to_str(message_type, messageType, "Unknown (0x%02x)"));
+ /* Get a main tree for the whole protocol */
+ pnrp_tree = proto_item_add_subtree(ti, ett_pnrp);
+
+ /*-------------------------------
+ *--Add all Header Fields
+ *------------------------------*/
+ /* Get a subtree for the Header */
+ pnrp_header_item = proto_tree_add_item(pnrp_tree, hf_pnrp_header, tvb, offset,12,ENC_NA);
+ pnrp_header_tree = proto_item_add_subtree(pnrp_header_item, ett_pnrp_header);
+
+ /* Add Field ID should be 0c0010 */
+ proto_tree_add_item(pnrp_header_tree,hf_pnrp_header_fieldID,tvb,offset,2,ENC_BIG_ENDIAN);
+ offset += 2;
+ /* Add Length should be 0x000C */
+ proto_tree_add_item(pnrp_header_tree,hf_pnrp_header_length,tvb,offset,2,ENC_BIG_ENDIAN);
+ offset += 2;
+ /* Add Ident should be 0x51 */
+ proto_tree_add_item(pnrp_header_tree,hf_pnrp_header_ident,tvb,offset,1,ENC_BIG_ENDIAN);
+ offset += 1;
+ /* Add Major Version */
+ proto_tree_add_item(pnrp_header_tree,hf_pnrp_header_versionMajor,tvb,offset,1,ENC_BIG_ENDIAN);
+ offset += 1;
+ /* Add Minor Version */
+ proto_tree_add_item(pnrp_header_tree,hf_pnrp_header_versionMinor,tvb,offset,1,ENC_BIG_ENDIAN);
+ offset += 1;
+ /* Add Message Type */
+ proto_tree_add_item(pnrp_header_tree,hf_pnrp_header_messageType,tvb,offset,1,ENC_BIG_ENDIAN);
+ offset += 1;
+ /* Add Message ID */
+ proto_tree_add_item_ret_uint(pnrp_header_tree,hf_pnrp_header_messageID,tvb,offset,4,ENC_BIG_ENDIAN,&msg_id);
+ offset += 4;
+
+
+ /*-------------------------------
+ *--Add all Message Fields
+ *------------------------------*/
+
+ /* The following part has dynamic length depending on message type */
+ start_offset = offset;
+ while (tvb_reported_length_remaining(tvb, offset) > 0) {
+ /* Determine the Field Type */
+ field_type = tvb_get_ntohs(tvb,offset );
+ /* Determine length of this message */
+ data_length = tvb_get_ntohs(tvb,offset + 2);
+
+ /* Length must be at least 4, because field_type and data_length are part of data_length information */
+ if (data_length < 4) {
+ if (tree) {
+ pnrp_message_tree = proto_tree_add_subtree_format(pnrp_tree, tvb, offset, 4, ett_pnrp_message, NULL,
+ "Message with invalid length %u (< 4)", data_length);
+ proto_tree_add_item(pnrp_message_tree, hf_pnrp_message_type, tvb, offset, 2, ENC_BIG_ENDIAN);
+ proto_tree_add_item(pnrp_message_tree, hf_pnrp_message_length, tvb, offset + 2, 2, ENC_BIG_ENDIAN);
+ }
+ offset += 4;
+ /* Don't continue parsing this message segment */
+ break;
+ }
+ /* Actual Parsing of the message Type */
+ switch (field_type) {
+ /* First Field in ACK Message */
+ case PNRP_HEADER_ACKED:
+ if (tree) {
+ pnrp_message_tree = proto_tree_add_subtree(pnrp_tree, tvb, offset,
+ data_length, ett_pnrp_message, NULL, "Message ACK ID: ");
+ proto_tree_add_item(pnrp_message_tree, hf_pnrp_message_type, tvb, offset , 2, ENC_BIG_ENDIAN);
+ proto_tree_add_item(pnrp_message_tree, hf_pnrp_message_length, tvb, offset + 2, 2, ENC_BIG_ENDIAN);
+ proto_tree_add_item(pnrp_message_tree, hf_pnrp_message_headerack, tvb, offset + 4, data_length -4, ENC_BIG_ENDIAN);
+
+ }
+ offset += data_length;
+ break;
+
+ /* A validate pnrp id follows as found in FLOOD */
+ case VALIDATE_PNRP_ID:
+ if (tree) {
+ pnrp_message_tree = proto_tree_add_subtree(pnrp_tree, tvb, offset,
+ data_length, ett_pnrp_message, NULL, "Validate PNRP ID: ");
+ proto_tree_add_item(pnrp_message_tree, hf_pnrp_message_type, tvb, offset , 2, ENC_BIG_ENDIAN);
+ proto_tree_add_item(pnrp_message_tree, hf_pnrp_message_length, tvb, offset + 2, 2, ENC_BIG_ENDIAN);
+ /* We can have a large number of pnrp IDs here */
+ dissect_pnrp_ids(tvb,offset+4,data_length-4,pnrp_message_tree);
+
+ }
+ offset += data_length;
+ break;
+
+ /* The Flags have different meaning, depending on the message */
+ case FLAGS_FIELD:
+ if (tree) {
+ pnrp_message_tree = proto_tree_add_subtree(pnrp_tree, tvb, offset,
+ data_length, ett_pnrp_message, NULL, "Flags Field: ");
+ proto_tree_add_item(pnrp_message_tree, hf_pnrp_message_type, tvb, offset , 2, ENC_BIG_ENDIAN);
+ proto_tree_add_item(pnrp_message_tree, hf_pnrp_message_length, tvb, offset + 2, 2, ENC_BIG_ENDIAN);
+ }
+ switch (message_type) {
+ case INQUIRE:
+ proto_tree_add_bitmask(pnrp_message_tree, tvb, offset+4, hf_pnrp_message_inquire_flags, ett_pnrp_message_inquire_flags, inquire_flags, ENC_BIG_ENDIAN);
+ proto_tree_add_item(pnrp_message_tree, hf_pnrp_padding, tvb, offset + 6, 2, ENC_NA);
+ offset += data_length+2;
+
+ break;
+
+ case ACK:
+ /* Reserved 0 - 14 bits */
+ proto_tree_add_bits_item(pnrp_message_tree, hf_pnrp_message_ack_flags_reserved, tvb, (offset + 4)*8, 15, ENC_BIG_ENDIAN);
+ /* N - Bit */
+ proto_tree_add_bits_item(pnrp_message_tree, hf_pnrp_message_ack_flags_Nbit, tvb,((offset + 4)*8)+15, 1, ENC_BIG_ENDIAN);
+ offset += data_length;
+ break;
+ case AUTHORITY:
+ proto_tree_add_bitmask(pnrp_message_tree, tvb, offset+4, hf_pnrp_message_authority_flags, ett_pnrp_message_authority_flags, authority_flags, ENC_BIG_ENDIAN);
+ /* Check if the Flags Field is the last message part. If so, no padding of 2 bytes is added */
+ if(tvb_reported_length_remaining(tvb, offset+data_length)==0)
+ {
+ offset += data_length;
+ }
+ else {
+ padding_bytes = 2;
+ proto_tree_add_item(pnrp_message_tree, hf_pnrp_padding, tvb, offset + 6, padding_bytes, ENC_NA);
+ offset += data_length+2;
+ }
+ break;
+
+ default:
+ proto_tree_add_item(pnrp_message_tree, hf_pnrp_message_flags, tvb, offset + 4, data_length -4, ENC_BIG_ENDIAN);
+ offset += data_length;
+ break;
+ }
+ break;
+
+ /* Flood controls found in FLOOD Message */
+ case FLOOD_CONTROLS:
+ if (tree) {
+ pnrp_message_tree = proto_tree_add_subtree(pnrp_tree, tvb, offset,
+ data_length, ett_pnrp_message, NULL, "Flood Control: ");
+ proto_tree_add_item(pnrp_message_tree, hf_pnrp_message_type, tvb, offset , 2, ENC_BIG_ENDIAN);
+ proto_tree_add_item(pnrp_message_tree, hf_pnrp_message_length, tvb, offset + 2, 2, ENC_BIG_ENDIAN);
+ /* Reserved 1 - 15 bits */
+ proto_tree_add_bits_item(pnrp_message_tree, hf_pnrp_message_flood_flags_reserved1, tvb, (offset + 4)*8, 15, ENC_BIG_ENDIAN);
+ /* D - Bit */
+ proto_tree_add_bits_item(pnrp_message_tree, hf_pnrp_message_flood_flags_Dbit, tvb,((offset + 4)*8)+15, 1, ENC_BIG_ENDIAN);
+ /* Reserved 2 */
+ proto_tree_add_item(pnrp_message_tree, hf_pnrp_reserved8, tvb, offset + 6, 1, ENC_NA);
+ /* Padding 1 */
+ proto_tree_add_item(pnrp_message_tree, hf_pnrp_padding, tvb, offset + 7, 1, ENC_NA);
+ }
+
+ offset += data_length+1;
+ break;
+
+ /* Solicit Controls found in SOLICIT Message */
+ case SOLICIT_CONTROLS:
+ if (tree) {
+ pnrp_message_tree = proto_tree_add_subtree(pnrp_tree, tvb, offset,
+ data_length, ett_pnrp_message, NULL, "Solicit Controls: ");
+ proto_tree_add_item(pnrp_message_tree, hf_pnrp_message_type, tvb, offset , 2, ENC_BIG_ENDIAN);
+ proto_tree_add_item(pnrp_message_tree, hf_pnrp_message_length, tvb, offset + 2, 2, ENC_BIG_ENDIAN);
+ proto_tree_add_item(pnrp_message_tree, hf_pnrp_reserved8, tvb, offset + 4, 1, ENC_NA);
+ proto_tree_add_item(pnrp_message_tree, hf_pnrp_message_solicitType, tvb, offset + 5, 1, ENC_BIG_ENDIAN);
+ proto_tree_add_item(pnrp_message_tree, hf_pnrp_reserved16, tvb, offset + 6, 2, ENC_LITTLE_ENDIAN);
+ }
+ offset += data_length +2; /* Padding involved */
+ break;
+ /* Lookup controls found in LOOKUP Message */
+ case LOOKUP_CONTROLS:
+ if (tree) {
+ pnrp_message_tree = proto_tree_add_subtree(pnrp_tree, tvb, offset,
+ data_length, ett_pnrp_message, NULL, "Lookup Control: ");
+ proto_tree_add_item(pnrp_message_tree, hf_pnrp_message_type, tvb, offset , 2, ENC_BIG_ENDIAN);
+ proto_tree_add_item(pnrp_message_tree, hf_pnrp_message_length, tvb, offset + 2, 2, ENC_BIG_ENDIAN);
+ /* 2 Bytes of Flags */
+ proto_tree_add_bitmask(pnrp_message_tree, tvb, offset+4, hf_pnrp_message_lookupControls_flags, ett_pnrp_message_lookupControls_flags, lookupControls_flags, ENC_BIG_ENDIAN);
+ /* Precision Bytes */
+ proto_tree_add_item(pnrp_message_tree, hf_pnrp_message_lookupControls_precision, tvb, offset + 6, 2, ENC_BIG_ENDIAN);
+ /* Resolve Criteria */
+ proto_tree_add_item(pnrp_message_tree, hf_pnrp_message_lookupControls_resolveCriteria, tvb, offset + 8, 1, ENC_BIG_ENDIAN);
+ /* Reason Code */
+ proto_tree_add_item(pnrp_message_tree, hf_pnrp_message_lookupControls_reasonCode, tvb, offset + 9, 1, ENC_BIG_ENDIAN);
+ /* Reserved */
+ proto_tree_add_item(pnrp_message_tree, hf_pnrp_reserved16, tvb, offset + 10, 2, ENC_LITTLE_ENDIAN);
+
+ }
+
+ offset += data_length;
+ break;
+ /* Target PNRP ID found in Lookup Message */
+ case TARGET_PNRP_ID:
+ if (tree) {
+ pnrp_message_tree = proto_tree_add_subtree(pnrp_tree, tvb, offset,
+ data_length, ett_pnrp_message, NULL, "Target PNRP ID: ");
+ proto_tree_add_item(pnrp_message_tree, hf_pnrp_message_type, tvb, offset , 2, ENC_BIG_ENDIAN);
+ proto_tree_add_item(pnrp_message_tree, hf_pnrp_message_length, tvb, offset + 2, 2, ENC_BIG_ENDIAN);
+ dissect_pnrp_ids(tvb, offset+4, data_length-4, pnrp_message_tree);
+ }
+
+ offset += data_length;
+ break;
+
+ /* Extended Payload found in AUTHORITY Message */
+ case EXTENDED_PAYLOAD:
+ if (tree) {
+ pnrp_message_tree = proto_tree_add_subtree(pnrp_tree, tvb, offset,
+ data_length, ett_pnrp_message, NULL, "Extended Payload: ");
+ proto_tree_add_item(pnrp_message_tree, hf_pnrp_message_type, tvb, offset , 2, ENC_BIG_ENDIAN);
+ proto_tree_add_item(pnrp_message_tree, hf_pnrp_message_length, tvb, offset + 2, 2, ENC_BIG_ENDIAN);
+ /* TODO: Do actual parsing */
+ }
+
+ offset += data_length;
+ break;
+ /* Pnrp id Array as found in REQUEST & ADVERTISE Message */
+ case PNRP_ID_ARRAY:
+ if (tree) {
+ pnrp_message_tree = proto_tree_add_subtree(pnrp_tree, tvb, offset,
+ data_length, ett_pnrp_message, NULL, "PNRP ID Array: ");
+ proto_tree_add_item(pnrp_message_tree, hf_pnrp_message_type, tvb, offset , 2, ENC_BIG_ENDIAN);
+ proto_tree_add_item(pnrp_message_tree, hf_pnrp_message_length, tvb, offset + 2, 2, ENC_BIG_ENDIAN);
+ proto_tree_add_item(pnrp_message_tree, hf_pnrp_message_idArray_NumEntries, tvb, offset + 4, 2, ENC_BIG_ENDIAN);
+ proto_tree_add_item(pnrp_message_tree, hf_pnrp_message_idArray_Length, tvb, offset + 6, 2, ENC_BIG_ENDIAN);
+ proto_tree_add_item(pnrp_message_tree, hf_pnrp_message_ElementFieldType, tvb, offset + 8, 2, ENC_BIG_ENDIAN);
+ proto_tree_add_item(pnrp_message_tree, hf_pnrp_message_idarray_Entrylength, tvb, offset + 10, 2, ENC_BIG_ENDIAN);
+ dissect_pnrp_ids(tvb,offset+12,data_length-12,pnrp_message_tree);
+ }
+
+ offset += data_length;
+ break;
+ /* Cert Chain follows as found in AUTHORITY */
+ case CERT_CHAIN:
+ if (tree) {
+ pnrp_message_tree = proto_tree_add_subtree(pnrp_tree, tvb, offset,
+ data_length, ett_pnrp_message, NULL, "CERT Chain: ");
+ proto_tree_add_item(pnrp_message_tree, hf_pnrp_message_type, tvb, offset , 2, ENC_BIG_ENDIAN);
+ proto_tree_add_item(pnrp_message_tree, hf_pnrp_message_length, tvb, offset + 2, 2, ENC_BIG_ENDIAN);
+ proto_tree_add_item(pnrp_message_tree, hf_pnrp_message_certChain, tvb, offset + 4, data_length-4, ENC_NA);
+ }
+
+ /* There might be padding, so fill up to the next byte */
+ padding_bytes = 0;
+ while (data_length%4 != 0 &&tvb_reported_length_remaining(tvb, offset+data_length)>0) {
+ data_length++;
+ padding_bytes++;
+ }
+ /* Check if we actually had some padding bytes */
+ if (0<padding_bytes) {
+ proto_tree_add_item(pnrp_message_tree, hf_pnrp_padding, tvb, offset + data_length-padding_bytes, padding_bytes, ENC_NA);
+ }
+ offset += data_length;
+ break;
+ /* classifier: A classifier string follows as found in AUTHORITY */
+ case CLASSIFIER:
+ if (tree) {
+ pnrp_message_tree = proto_tree_add_subtree(pnrp_tree, tvb, offset,
+ data_length, ett_pnrp_message, NULL, "Classifier: ");
+ proto_tree_add_item(pnrp_message_tree, hf_pnrp_message_type, tvb, offset , 2, ENC_BIG_ENDIAN);
+ proto_tree_add_item(pnrp_message_tree, hf_pnrp_message_length, tvb, offset + 2, 2, ENC_BIG_ENDIAN);
+ /* NumEntries */
+ proto_tree_add_item(pnrp_message_tree, hf_pnrp_message_classifier_unicodeCount, tvb, offset + 4, 2, ENC_BIG_ENDIAN);
+ /* Array Length: 8+(NumEntries*EntryLength */
+ proto_tree_add_item(pnrp_message_tree, hf_pnrp_message_classifier_arrayLength, tvb, offset + 6, 2, ENC_BIG_ENDIAN);
+ /* Element Field Type: WCHAR */
+ proto_tree_add_item(pnrp_message_tree, hf_pnrp_message_type, tvb, offset+8 , 2, ENC_BIG_ENDIAN);
+ /* Entry Length: Must be 0x0002 */
+ proto_tree_add_item(pnrp_message_tree, hf_pnrp_message_classifier_entryLength, tvb, offset + 10, 2, ENC_BIG_ENDIAN);
+ /* The actual classifier String */
+ proto_tree_add_item(pnrp_message_tree, hf_pnrp_message_classifier_string, tvb, offset + 12, tvb_get_ntohs(tvb,offset+6)-8, ENC_UTF_16|ENC_BIG_ENDIAN);
+ }
+
+ /* There might be padding, so fill up to the next byte */
+ padding_bytes = 0;
+ while (data_length%4 != 0 &&tvb_reported_length_remaining(tvb, offset+data_length)>0) {
+ data_length++;
+ padding_bytes++;
+ }
+ /* Check if we actually had some padding bytes */
+ if (0<padding_bytes) {
+ proto_tree_add_item(pnrp_message_tree, hf_pnrp_padding, tvb, offset + data_length-padding_bytes, padding_bytes, ENC_NA);
+ }
+ offset += data_length;
+ break;
+ /* A hashed nonce follows as found in ADVERTISE & SOLICIT */
+ case HASHED_NONCE:
+ if (tree) {
+ pnrp_message_tree = proto_tree_add_subtree(pnrp_tree, tvb, offset,
+ data_length, ett_pnrp_message, NULL, "Hashed Nonce: ");
+ proto_tree_add_item(pnrp_message_tree, hf_pnrp_message_type, tvb, offset , 2, ENC_BIG_ENDIAN);
+ proto_tree_add_item(pnrp_message_tree, hf_pnrp_message_length, tvb, offset + 2, 2, ENC_BIG_ENDIAN);
+ proto_tree_add_item(pnrp_message_tree, hf_pnrp_message_hashednonce, tvb, offset + 4, data_length-4, ENC_NA);
+
+ }
+
+ offset += data_length;
+ break;
+
+ /* A nonce follows as found in REQUEST & INQUIRE */
+ case NONCE:
+ if (tree) {
+ pnrp_message_tree = proto_tree_add_subtree(pnrp_tree, tvb, offset,
+ data_length, ett_pnrp_message, NULL, "Nonce: ");
+ proto_tree_add_item(pnrp_message_tree, hf_pnrp_message_type, tvb, offset , 2, ENC_BIG_ENDIAN);
+ proto_tree_add_item(pnrp_message_tree, hf_pnrp_message_length, tvb, offset + 2, 2, ENC_BIG_ENDIAN);
+ proto_tree_add_item(pnrp_message_tree, hf_pnrp_message_nonce, tvb, offset + 4, data_length-4, ENC_NA);
+ }
+
+ offset += data_length;
+ break;
+
+ /* split controls as found in AUTHORITY */
+ case SPLIT_CONTROLS:
+ {
+ fragment_head *frag_data;
+ tvbuff_t *frag_tvb;
+ guint32 buffer_len, frag_offset, remaining_len;
+
+ if (tree) {
+ pnrp_message_tree = proto_tree_add_subtree(pnrp_tree, tvb, offset,
+ data_length, ett_pnrp_message, NULL, "Split controls: ");
+ proto_tree_add_item(pnrp_message_tree, hf_pnrp_message_type, tvb, offset , 2, ENC_BIG_ENDIAN);
+ proto_tree_add_item(pnrp_message_tree, hf_pnrp_message_length, tvb, offset + 2, 2, ENC_BIG_ENDIAN);
+ }
+ /* Size of Authority Buffer */
+ proto_tree_add_item_ret_uint(pnrp_message_tree, hf_pnrp_message_splitControls_authorityBuffer,
+ tvb, offset + 4, 2, ENC_BIG_ENDIAN, &buffer_len);
+ /* Byte offset */
+ proto_tree_add_item_ret_uint(pnrp_message_tree, hf_pnrp_message_offset,
+ tvb, offset + 6, 2, ENC_BIG_ENDIAN, &frag_offset);
+ offset += data_length;
+ remaining_len = tvb_reported_length_remaining(tvb, offset);
+
+ frag_data = fragment_add_check(&pnrp_reassembly_table, tvb, offset, pinfo,
+ msg_id, NULL, frag_offset, remaining_len,
+ (buffer_len != (frag_offset + remaining_len)));
+ frag_tvb = process_reassembled_data(tvb, offset, pinfo, "Reassembled PNRP message",
+ frag_data, &pnrp_frag_items, NULL, pnrp_message_tree);
+ if (frag_tvb) {
+ tvb = frag_tvb;
+ offset = 0;
+ } else {
+ proto_tree_add_item(pnrp_message_tree, hf_pnrp_fragmented_payload, tvb, offset, -1, ENC_NA);
+ col_append_fstr(pinfo->cinfo, COL_INFO, " [Fragmented message]");
+ return tvb_captured_length(tvb);
+ }
+ break;
+ }
+
+ /* routing entry: A route entry follows as found in ADVERTISE, INQUIRE, LOOKUP & AUTHORITY */
+ case ROUTING_ENTRY:
+ if (tree) {
+ pnrp_message_tree = proto_tree_add_subtree(pnrp_tree, tvb, offset,
+ data_length, ett_pnrp_message, NULL, "Routing Entry: ");
+ proto_tree_add_item(pnrp_message_tree, hf_pnrp_message_type, tvb, offset , 2, ENC_BIG_ENDIAN);
+ proto_tree_add_item(pnrp_message_tree, hf_pnrp_message_length, tvb, offset + 2, 2, ENC_BIG_ENDIAN);
+ dissect_route_entry(tvb,offset+4, tvb_get_ntohs(tvb,offset+2)-4, pnrp_message_tree);
+ }
+
+ /* There might be padding, so fill up to the next byte */
+ padding_bytes = 0;
+ while (data_length%4 != 0 &&tvb_reported_length_remaining(tvb, offset+data_length)>0) {
+ data_length++;
+ padding_bytes++;
+ }
+ /* Check if we actually had some padding bytes */
+ if (0<padding_bytes) {
+ proto_tree_add_item(pnrp_message_tree, hf_pnrp_padding, tvb, offset + data_length-padding_bytes, padding_bytes, ENC_NA);
+ }
+ offset += data_length;
+ break;
+
+ /* validate cpa: an encoded CPA structure follows as found in AUTHORITY */
+ case VALIDATE_CPA:
+ if (tree) {
+ pnrp_message_tree = proto_tree_add_subtree(pnrp_tree, tvb, offset,
+ data_length, ett_pnrp_message, NULL, "Validate CPA: ");
+ proto_tree_add_item(pnrp_message_tree, hf_pnrp_message_type, tvb, offset , 2, ENC_BIG_ENDIAN);
+ proto_tree_add_item(pnrp_message_tree, hf_pnrp_message_length, tvb, offset + 2, 2, ENC_BIG_ENDIAN);
+ /* Do the actual parsing in own method */
+ dissect_encodedCPA_structure(tvb, offset+4, data_length-4, pnrp_message_tree);
+
+ }
+
+ offset += data_length;
+ break;
+
+
+ /* IPV6 Endpoint: an ipv6 endpoint array structure follows as found in LOOKUP */
+ case IPV6_ENDPOINT_ARRAY:
+ if (tree) {
+ pnrp_message_tree = proto_tree_add_subtree(pnrp_tree, tvb, offset,
+ data_length, ett_pnrp_message, NULL, "IPv6 Endpoint Array: ");
+ proto_tree_add_item(pnrp_message_tree, hf_pnrp_message_type, tvb, offset , 2, ENC_BIG_ENDIAN);
+ proto_tree_add_item(pnrp_message_tree, hf_pnrp_message_length, tvb, offset + 2, 2, ENC_BIG_ENDIAN);
+ /* Number of route entries */
+ proto_tree_add_item(pnrp_message_tree, hf_pnrp_message_ipv6EndpointArray_NumberOfEntries, tvb, offset + 4, 2, ENC_BIG_ENDIAN);
+ /* Array length */
+ proto_tree_add_item(pnrp_message_tree, hf_pnrp_message_ipv6EndpointArray_ArrayLength, tvb, offset + 6, 2, ENC_BIG_ENDIAN);
+ /* Element Field Type */
+ proto_tree_add_item(pnrp_message_tree, hf_pnrp_message_type, tvb, offset+8 , 2, ENC_BIG_ENDIAN);
+ /* Entry Length: must be 0x0012 (18 bytes) */
+ proto_tree_add_item(pnrp_message_tree, hf_pnrp_message_ipv6EndpointArray_EntryLength, tvb, offset + 10, 2, ENC_BIG_ENDIAN);
+ /* Flagged Path */
+ dissect_ipv6_endpoint_structure(tvb, offset+12, tvb_get_ntohs(tvb,offset+6)-8,pnrp_message_tree);
+ }
+
+ offset += data_length;
+ break;
+
+ default:
+ if (tree) {
+ pnrp_message_tree = proto_tree_add_subtree_format(pnrp_tree, tvb, offset,
+ data_length, ett_pnrp_message, NULL, "Type: %s, length: %u",
+ val_to_str(field_type, fieldID, "Unknown (0x%04x)"), data_length);
+ proto_tree_add_item(pnrp_message_tree, hf_pnrp_message_type, tvb, offset , 2, ENC_BIG_ENDIAN);
+ proto_tree_add_item(pnrp_message_tree, hf_pnrp_message_length, tvb, offset + 2, 2, ENC_BIG_ENDIAN);
+ if(data_length > 4)
+ {
+ proto_tree_add_item(pnrp_message_tree, hf_pnrp_message_data, tvb, offset + 4, data_length -4, ENC_NA);
+ }
+ else {
+ return 0;
+ }
+ }
+ offset += data_length;
+ break;
+ }
+ // SPLIT_CONTROLS might reset our offset.
+ if (start_offset <= offset) {
+ THROW(ReportedBoundsError);
+ }
+ }
+ return offset;
+
+}
+
+/*--------------------------------------------------------------*
+ * Dissecting helper methods *
+ *--------------------------------------------------------------*/
+
+static void dissect_pnrp_ids(tvbuff_t *tvb, gint offset, gint length, proto_tree *tree)
+{
+ while (32 <=length) {
+ proto_tree_add_item(tree, hf_pnrp_message_pnrpID, tvb, offset, 32, ENC_NA);
+ length -= 32;
+ offset += 32;
+ }
+
+}
+
+static void dissect_route_entry(tvbuff_t *tvb, gint offset, gint length, proto_tree *tree)
+{
+ gint tmp_offset;
+ /* Check if we don't run out of data */
+ if (0 <= tvb_reported_length_remaining(tvb, offset+length)) {
+ tmp_offset = 0;
+ /* First, we have a 32 Bit long PNRP ID */
+ proto_tree_add_item(tree, hf_pnrp_message_pnrpID, tvb, offset+tmp_offset, 32, ENC_NA);
+ tmp_offset +=32;
+ /* Add PNRP Major Version */
+ proto_tree_add_item(tree,hf_pnrp_header_versionMajor,tvb,offset+tmp_offset,1,ENC_BIG_ENDIAN);
+ tmp_offset += 1;
+ /* Add Minor Version */
+ proto_tree_add_item(tree,hf_pnrp_header_versionMinor,tvb,offset+tmp_offset,1,ENC_BIG_ENDIAN);
+ tmp_offset +=1;
+ /* Port Number */
+ proto_tree_add_item(tree,hf_pnrp_message_routeEntry_portNumber,tvb,offset+tmp_offset,2,ENC_BIG_ENDIAN);
+ tmp_offset +=2;
+ /* Flags */
+ proto_tree_add_item(tree,hf_pnrp_message_routeEntry_flags,tvb,offset+tmp_offset,1,ENC_BIG_ENDIAN);
+ tmp_offset +=1;
+ /* Address count */
+ proto_tree_add_item(tree,hf_pnrp_message_routeEntry_addressCount,tvb,offset+tmp_offset,1,ENC_BIG_ENDIAN);
+ tmp_offset +=1;
+ /* IPv6 Addresses */
+ dissect_ipv6_address(tvb, offset+tmp_offset, length -tmp_offset, tree);
+ }
+}
+
+static void dissect_ipv6_endpoint_structure(tvbuff_t *tvb, gint offset, gint length, proto_tree *tree)
+{
+ /* Check if we don't run out of data */
+ while (0 <= tvb_reported_length_remaining(tvb, offset+18) && 18 <=length) {
+ /* Port Number */
+ proto_tree_add_item(tree, hf_pnrp_message_port_number, tvb, offset, 2, ENC_BIG_ENDIAN);
+ /* IPv6 Addresses */
+ dissect_ipv6_address(tvb, offset+2,16,tree);
+ offset += 18;
+ length -= 18;
+ }
+}
+
+static void dissect_ipv6_address(tvbuff_t *tvb, gint offset, gint length, proto_tree *tree)
+{
+ while (0 <= tvb_reported_length_remaining(tvb, offset+16) && 16 <=length) {
+ proto_tree_add_item(tree, hf_pnrp_message_ipv6, tvb, offset, 16, ENC_NA);
+ offset += 16;
+ length -= 16;
+ }
+}
+
+static void dissect_encodedCPA_structure(tvbuff_t *tvb, gint offset, gint length, proto_tree *tree)
+{
+ /* Check if we don't run out of data */
+ if (0 <= tvb_reported_length_remaining(tvb, offset+length)) {
+ guint8 flagsField;
+ /* Add a new subtree */
+ proto_item *pnrp_encodedCPA_tree = NULL;
+ proto_item *pnrp_encodedCPA_item = NULL;
+ pnrp_encodedCPA_item = proto_tree_add_item(tree, hf_pnrp_encodedCPA, tvb, offset,length,ENC_NA);
+ pnrp_encodedCPA_tree = proto_item_add_subtree(pnrp_encodedCPA_item, ett_pnrp_message_encodedCPA);
+
+ /* Length information */
+ proto_tree_add_item(pnrp_encodedCPA_tree, hf_pnrp_encodedCPA_length, tvb, offset, 2, ENC_BIG_ENDIAN);
+ /* CPA Minor Version */
+ proto_tree_add_item(pnrp_encodedCPA_tree, hf_pnrp_encodedCPA_minorVersion, tvb, offset+2, 1, ENC_BIG_ENDIAN);
+ /* CPA Major Version */
+ proto_tree_add_item(pnrp_encodedCPA_tree, hf_pnrp_encodedCPA_majorVersion, tvb, offset+3, 1, ENC_BIG_ENDIAN);
+ /* PNRP Minor Version */
+ proto_tree_add_item(pnrp_encodedCPA_tree, hf_pnrp_header_versionMinor, tvb, offset+4, 1, ENC_BIG_ENDIAN);
+ /* PNRP Major Version */
+ proto_tree_add_item(pnrp_encodedCPA_tree, hf_pnrp_header_versionMajor, tvb, offset+5, 1, ENC_BIG_ENDIAN);
+ /* Flags Field */
+ proto_tree_add_bitmask(pnrp_encodedCPA_tree, tvb, offset+6, hf_pnrp_encodedCPA_flags, ett_pnrp_message_encodedCPA_flags, encodedCPA_flags, ENC_BIG_ENDIAN);
+ flagsField = tvb_get_guint8(tvb,offset+6);
+ /* Reserved */
+ proto_tree_add_item(pnrp_encodedCPA_tree, hf_pnrp_reserved8, tvb, offset + 7, 1, ENC_NA);
+ /* Not After */
+ proto_tree_add_item(pnrp_encodedCPA_tree, hf_pnrp_encodedCPA_notAfter, tvb, offset+8, 8, ENC_BIG_ENDIAN);
+ /* Service Location */
+ proto_tree_add_item(pnrp_encodedCPA_tree, hf_pnrp_encodedCPA_serviceLocation, tvb, offset+16, 16, ENC_NA);
+
+ /* now, the structure is variable, so add bytes to offset */
+ offset +=32;
+
+ /* Check if R Flag is set */
+ if ((flagsField & FLAGS_ENCODED_CPA_R)==0x00) {
+ /* Nonce follows */
+ proto_tree_add_item(pnrp_encodedCPA_tree, hf_pnrp_message_nonce, tvb, offset, 16, ENC_NA);
+ offset +=16;
+ }
+ /* Check if A Flag is set */
+ if (flagsField & FLAGS_ENCODED_CPA_A) {
+ /* Binary authority */
+ proto_tree_add_item(pnrp_encodedCPA_tree, hf_pnrp_encodedCPA_binaryAuthority, tvb, offset, 20, ENC_NA);
+ offset +=20;
+ }
+ /* Check if C Flag is set */
+ if (flagsField & FLAGS_ENCODED_CPA_C) {
+ /* Classifier Hash */
+ proto_tree_add_item(pnrp_encodedCPA_tree, hf_pnrp_encodedCPA_classifierHash, tvb, offset, 20, ENC_NA);
+ offset +=20;
+ }
+ /* Check if F Flag is set */
+ if (flagsField & FLAGS_ENCODED_CPA_F) {
+ /* Friendly Name Length */
+ proto_tree_add_item(pnrp_encodedCPA_tree, hf_pnrp_encodedCPA_friendlyName_length, tvb, offset, 2, ENC_LITTLE_ENDIAN);
+ /* Friendly Name */
+ proto_tree_add_item(pnrp_encodedCPA_tree, hf_pnrp_encodedCPA_friendlyName, tvb, offset+2, tvb_get_letohs(tvb,offset), ENC_ASCII);
+ offset +=tvb_get_letohs(tvb,offset)+2;
+ }
+ /* Service Address List */
+ proto_tree_add_item(pnrp_encodedCPA_tree, hf_pnrp_encodedCPA_number_of_service_addresses, tvb, offset, 2, ENC_LITTLE_ENDIAN);
+ offset += 2;
+ proto_tree_add_item(pnrp_encodedCPA_tree, hf_pnrp_encodedCPA_service_address_length, tvb, offset, 2, ENC_LITTLE_ENDIAN);
+ offset += 2;
+ /* A list of IPV6_Endpoint Structures follows */
+ dissect_ipv6_endpoint_structure(tvb, offset,tvb_get_letohs(tvb,offset-4)*tvb_get_letohs(tvb,offset-2) , pnrp_encodedCPA_tree);
+ offset += tvb_get_letohs(tvb,offset-4)*tvb_get_letohs(tvb,offset-2);
+ /* A number of Payload Structures */
+ proto_tree_add_item(pnrp_encodedCPA_tree, hf_pnrp_encodedCPA_number_of_payload_structures, tvb, offset, 2, ENC_LITTLE_ENDIAN);
+ offset += 2;
+ proto_tree_add_item(pnrp_encodedCPA_tree, hf_pnrp_encodedCPA_total_bytes_of_payload, tvb, offset, 2, ENC_LITTLE_ENDIAN);
+ offset += 2;
+ dissect_payload_structure(tvb,offset, tvb_get_letohs(tvb,offset-2)-4,pnrp_encodedCPA_tree);
+ offset += tvb_get_letohs(tvb,offset-2)-4;
+ /* Public Key */
+ dissect_publicKey_structure(tvb, offset,tvb_get_letohs(tvb,offset),pnrp_encodedCPA_tree);
+ offset += tvb_get_letohs(tvb,offset);
+ /* Signature */
+ dissect_signature_structure(tvb, offset,tvb_get_letohs(tvb,offset),pnrp_encodedCPA_tree);
+ /*offset += tvb_get_letohs(tvb,offset);*/
+ }
+}
+static void dissect_payload_structure(tvbuff_t *tvb, gint offset, gint length, proto_tree *tree)
+{
+ guint16 lengthOfData;
+ /* Add a new Subtree */
+ proto_item *pnrp_payload_tree;
+ /* Check if we actually should display something */
+ if (0>=length )
+ return;
+
+ pnrp_payload_tree = proto_tree_add_subtree(tree, tvb, offset, length, ett_pnrp_message_payloadStructure, NULL, "Payload Structure");
+
+ /* Dissect the Payload Structure */
+ /* Payload Type */
+ proto_tree_add_item(pnrp_payload_tree, hf_pnrp_payload_type, tvb, offset, 4, ENC_LITTLE_ENDIAN);
+ offset += 4;
+ /* Data Length */
+ lengthOfData = tvb_get_letohs(tvb,offset);
+ proto_tree_add_item(pnrp_payload_tree, hf_pnrp_length_of_data, tvb, offset, 2, ENC_LITTLE_ENDIAN);
+ offset += 2;
+ /* IPV6_APP_ENDPOINT Structure */
+ while (0 <= tvb_reported_length_remaining(tvb, offset+20)&& 20 <= lengthOfData) {
+ dissect_ipv6_address(tvb, offset, 16, pnrp_payload_tree);
+ offset += 16;
+ proto_tree_add_item(pnrp_payload_tree, hf_pnrp_payload_port, tvb, offset, 2, ENC_LITTLE_ENDIAN);
+ offset += 2;
+ proto_tree_add_item(pnrp_payload_tree, hf_pnrp_payload_iana_proto, tvb, offset, 2, ENC_LITTLE_ENDIAN);
+ offset += 2;
+ lengthOfData -=20;
+ }
+}
+
+static void dissect_publicKey_structure(tvbuff_t *tvb, gint offset, gint length, proto_tree *tree)
+{
+ guint16 objIDLength;
+ guint16 cbDataLength;
+ /* Add a new Subtree */
+ proto_tree *pnrp_publicKey_tree;
+ /* Check if we can safely parse Data */
+ if (0 < length && 0 <= tvb_reported_length_remaining(tvb, offset+length)) {
+ pnrp_publicKey_tree = proto_tree_add_subtree(tree, tvb, offset, length, ett_pnrp_message_publicKeyStructure, NULL, "CPA Public Key Structure");
+ /* Parsing of Data */
+ /* Field Length of Structure */
+ proto_tree_add_item(pnrp_publicKey_tree, hf_pnrp_publicKey_length_of_structure, tvb, offset, 2, ENC_LITTLE_ENDIAN);
+ offset += 2;
+ /* ObjID length */
+ objIDLength = tvb_get_letohs(tvb,offset);
+ proto_tree_add_item(pnrp_publicKey_tree, hf_pnrp_publicKey_size_of_algorithm_oid, tvb, offset, 2, ENC_LITTLE_ENDIAN);
+ offset += 2;
+ /* Reserved */
+ proto_tree_add_item(pnrp_publicKey_tree, hf_pnrp_publicKey_reserved, tvb, offset, 2, ENC_LITTLE_ENDIAN);
+ offset +=2;
+ /* Public Key cbData Length */
+ cbDataLength = tvb_get_letohs(tvb,offset);
+ proto_tree_add_item(pnrp_publicKey_tree, hf_pnrp_publicKey_size_of_cbdata, tvb, offset, 2, ENC_LITTLE_ENDIAN);
+ offset += 2;
+ /* Unused Bits, actually only 7... */
+ proto_tree_add_item(pnrp_publicKey_tree, hf_pnrp_publicKey_unused_bits, tvb, offset, 1, ENC_NA);
+ offset +=1;
+ /* Algorithm ObjID */
+ proto_tree_add_item(pnrp_publicKey_tree, hf_pnrp_publicKey_objID, tvb, offset, objIDLength, ENC_ASCII);
+ offset += objIDLength;
+ /* Public Key Data */
+ proto_tree_add_item(pnrp_publicKey_tree, hf_pnrp_publicKey_publicKeyData, tvb, offset, cbDataLength, ENC_ASCII);
+ }
+}
+static void dissect_signature_structure(tvbuff_t *tvb, gint offset, gint length, proto_tree *tree)
+{
+ guint16 signatureLength;
+ /* Add a new Subtree */
+ proto_tree *pnrp_signature_tree;
+
+ /* Check if we can safely parse Data */
+ if (0 < length && 0 <= tvb_reported_length_remaining(tvb, offset+length)) {
+ pnrp_signature_tree = proto_tree_add_subtree(tree, tvb, offset, length, ett_pnrp_message_signatureStructure, NULL, "Signature Structure");
+ /* Parsing of Data */
+ /* Field Length of Structure */
+ proto_tree_add_item(pnrp_signature_tree, hf_pnrp_signature_structure_length, tvb, offset, 2, ENC_LITTLE_ENDIAN);
+ offset +=2;
+ /* Signature Length */
+ signatureLength = tvb_get_letohs(tvb,offset);
+ proto_tree_add_item(pnrp_signature_tree, hf_pnrp_signature_length, tvb, offset, 2, ENC_LITTLE_ENDIAN);
+ offset += 2;
+ /* Hash Algorithm Identifier */
+ proto_tree_add_item(pnrp_signature_tree, hf_pnrp_signature_hash_id, tvb, offset, 4, ENC_LITTLE_ENDIAN);
+ offset += 4;
+ /* Signature Data */
+ proto_tree_add_item(pnrp_signature_tree, hf_pnrp_signature_signatureData, tvb, offset, signatureLength, ENC_NA);
+ }
+}
+
+/* Register the protocol */
+void proto_register_pnrp(void)
+{
+ /* A header field is something you can search/filter on.
+ *
+ * We create a structure to register our fields. It consists of an
+ * array of hf_register_info structures, each of which are of the format
+ * {&(field id), {name, abbrev, type, display, strings, bitmask, blurb, HFILL}}.
+ */
+ static hf_register_info hf[] = {
+ { &hf_pnrp_header,
+ { "Header", "pnrp.header", FT_NONE, BASE_NONE, NULL, 0x0,
+ "PNRP Header", HFILL }},
+ { &hf_pnrp_header_fieldID,
+ { "Header FieldID", "pnrp.header.fieldID", FT_UINT16, BASE_HEX, VALS(fieldID), 0x0,
+ NULL, HFILL }},
+ { &hf_pnrp_header_length,
+ { "Header length", "pnrp.header.length", FT_UINT16, BASE_DEC, NULL, 0x0,
+ NULL, HFILL }},
+ { &hf_pnrp_header_ident,
+ { "Ident", "pnrp.ident", FT_UINT8, BASE_HEX, NULL, 0x0,
+ NULL, HFILL }},
+ { &hf_pnrp_header_versionMajor,
+ { "Version Major", "pnrp.vMajor", FT_UINT8, BASE_DEC, NULL, 0x0,
+ NULL, HFILL }},
+ { &hf_pnrp_header_versionMinor,
+ { "Version Minor", "pnrp.vMinor", FT_UINT8, BASE_DEC, NULL, 0x0,
+ NULL, HFILL }},
+ { &hf_pnrp_header_messageType,
+ { "Message Type", "pnrp.messageType", FT_UINT8, BASE_DEC, VALS(messageType), 0x0,
+ NULL, HFILL }},
+ { &hf_pnrp_header_messageID,
+ { "Message ID", "pnrp.header.messageID", FT_UINT32, BASE_HEX, NULL, 0x0,
+ NULL, HFILL }},
+ { &hf_pnrp_message_type,
+ { "Segment Type", "pnrp.segment.type", FT_UINT16, BASE_HEX, VALS(fieldID), 0x0,
+ NULL, HFILL }},
+ { &hf_pnrp_message_length,
+ { "Segment length", "pnrp.segment.length", FT_UINT16, BASE_DEC, NULL, 0x0,
+ "Message length", HFILL }},
+ { &hf_pnrp_message_headerack,
+ { "ACKed Header ID", "pnrp.segment.headerAck", FT_UINT32, BASE_HEX, NULL, 0x0,
+ NULL, HFILL }},
+ { &hf_pnrp_message_pnrpID,
+ { "PNRP ID", "pnrp.segment.pnrpID", FT_BYTES, BASE_NONE, NULL, 0x0,
+ NULL, HFILL }},
+ /* Inquire Flags */
+ { &hf_pnrp_message_inquire_flags,
+ { "Flags", "pnrp.segment.inquire.flags", FT_UINT16, BASE_HEX, NULL, 0x0,
+ NULL, HFILL }},
+ { &hf_pnrp_message_inquire_flags_reserved1,
+ { "Reserved 1", "pnrp.segment.inquire.flags.reserved1", FT_UINT16, BASE_HEX, NULL, FLAGS_INQUIRE_RESERVED1,
+ NULL, HFILL }},
+ { &hf_pnrp_message_inquire_flags_Abit,
+ { "CPA should (a)ppear in response", "pnrp.segment.inquire.flags.Abit", FT_UINT16, BASE_HEX, NULL, FLAGS_INQUIRE_A,
+ NULL, HFILL }},
+ { &hf_pnrp_message_inquire_flags_Xbit,
+ { "E(X)tended Payload sent in Authority response", "pnrp.segment.inquire.flags.Xbit", FT_UINT16, BASE_HEX, NULL, FLAGS_INQUIRE_X,
+ NULL, HFILL }},
+ { &hf_pnrp_message_inquire_flags_Cbit,
+ { "(C)ertificate Chain sent in Authority response", "pnrp.segment.inquire.flags.Cbit", FT_UINT16, BASE_HEX, NULL, FLAGS_INQUIRE_C,
+ NULL, HFILL }},
+ { &hf_pnrp_message_inquire_flags_reserved2,
+ { "Reserved 2", "pnrp.segment.inquire.flags.reserved2", FT_UINT16, BASE_HEX, NULL, FLAGS_INQUIRE_RESERVED2,
+ NULL, HFILL }},
+ { &hf_pnrp_padding,
+ { "Padding", "pnrp.padding", FT_BYTES, BASE_NONE, NULL, 0x0,
+ NULL, HFILL }},
+ /* Classifier */
+ { &hf_pnrp_message_classifier_unicodeCount,
+ { "Number of Unicode Characters", "pnrp.segment.classifier.unicodeCount", FT_UINT16, BASE_DEC, NULL, 0x0,
+ NULL, HFILL }},
+ { &hf_pnrp_message_classifier_arrayLength,
+ { "Array Length", "pnrp.segment.classifier.arrayLength", FT_UINT16, BASE_DEC, NULL, 0x0,
+ NULL, HFILL }},
+ { &hf_pnrp_message_classifier_entryLength,
+ { "Entry Length", "pnrp.segment.classifier.entryLength", FT_UINT16, BASE_DEC, NULL, 0x0,
+ NULL, HFILL }},
+ { &hf_pnrp_message_classifier_string,
+ { "Classifier", "pnrp.segment.classifier.string", FT_STRING, BASE_NONE, NULL, 0x0,
+ NULL, HFILL }},
+ /* Ack Flags */
+ { &hf_pnrp_message_ack_flags_reserved,
+ { "Reserved", "pnrp.segment.ack.flags.reserved", FT_BOOLEAN, BASE_NONE, NULL, 0x0,
+ NULL, HFILL }},
+ { &hf_pnrp_message_ack_flags_Nbit,
+ { "(N)ot found Bit", "pnrp.segment.ack.flags.Nbit", FT_BOOLEAN, BASE_NONE, NULL, 0x0,
+ NULL, HFILL }},
+ /* Authority Flags */
+ { &hf_pnrp_message_authority_flags,
+ { "Flags", "pnrp.segment.authority.flags", FT_UINT16, BASE_HEX, NULL, 0x0,
+ NULL, HFILL }},
+ { &hf_pnrp_message_authority_flags_reserved1,
+ { "Reserved 1", "pnrp.segment.authority.flags.reserved1", FT_UINT16, BASE_HEX, NULL, FLAGS_AUTHORITY_RESERVED1,
+ NULL, HFILL }},
+ { &hf_pnrp_message_authority_flags_Lbit,
+ { "(L)eaf Set", "pnrp.segment.authority.flags.Lbit", FT_UINT16, BASE_HEX, NULL, FLAGS_AUTHORITY_L,
+ NULL, HFILL }},
+ { &hf_pnrp_message_authority_flags_reserved2,
+ { "Reserved 2", "pnrp.segment.authority.flags.reserved2", FT_UINT16, BASE_HEX, NULL, FLAGS_AUTHORITY_RESERVED2,
+ NULL, HFILL }},
+ { &hf_pnrp_message_authority_flags_Bbit,
+ { "(B)usy", "pnrp.segment.authority.flags.Bbit", FT_UINT16, BASE_HEX, NULL, FLAGS_AUTHORITY_B,
+ NULL, HFILL }},
+ { &hf_pnrp_message_authority_flags_reserved3,
+ { "Reserved 3", "pnrp.segment.authority.flags.reserved3", FT_UINT16, BASE_HEX, NULL, FLAGS_AUTHORITY_RESERVED3,
+ NULL, HFILL }},
+ { &hf_pnrp_message_authority_flags_Nbit,
+ { "(N)ot found", "pnrp.segment.authority.flags.Nbit", FT_UINT16, BASE_HEX, NULL, FLAGS_AUTHORITY_N,
+ NULL, HFILL }},
+ /* Flood Control Flags */
+ { &hf_pnrp_message_flood_flags_reserved1,
+ { "Reserved", "pnrp.segment.flood.flags.reserved", FT_BOOLEAN, BASE_NONE, NULL, 0x0,
+ NULL, HFILL }},
+ { &hf_pnrp_message_flood_flags_Dbit,
+ { "(D)on't send ACK", "pnrp.segment.flood.flags.Dbit", FT_BOOLEAN, BASE_NONE, NULL, 0x0,
+ NULL, HFILL }},
+ /* Split Controls */
+ { &hf_pnrp_message_splitControls_authorityBuffer,
+ { "Authority Buffer Size", "pnrp.segment.splitControls.authorityBuffer", FT_UINT16, BASE_DEC, NULL, 0x0,
+ NULL, HFILL }},
+ /* IPv6 Endpoint Array */
+ { &hf_pnrp_message_ipv6EndpointArray_NumberOfEntries,
+ { "Number of Entries", "pnrp.segment.ipv6EndpointArray.NumberOfEntries", FT_UINT16, BASE_DEC, NULL, 0x0,
+ NULL, HFILL }},
+ { &hf_pnrp_message_ipv6EndpointArray_ArrayLength,
+ { "Array Length", "pnrp.segment.ipv6EndpointArray.ArrayLength", FT_UINT16, BASE_DEC, NULL, 0x0,
+ NULL, HFILL }},
+ { &hf_pnrp_message_ipv6EndpointArray_EntryLength,
+ { "Entry Length", "pnrp.segment.ipv6EndpointArray.EntryLength", FT_UINT16, BASE_DEC, NULL, 0x0,
+ NULL, HFILL }},
+ /* Encoded CPA structrue */
+ { &hf_pnrp_encodedCPA,
+ { "Encoded CPA structure", "pnrp.encodedCPA", FT_NONE, BASE_NONE, NULL, 0x0,
+ NULL, HFILL }},
+ { &hf_pnrp_encodedCPA_length,
+ { "Length", "pnrp.encodedCPA.length", FT_UINT16, BASE_DEC, NULL, 0x0,
+ NULL, HFILL }},
+ { &hf_pnrp_encodedCPA_majorVersion,
+ { "CPA Major Version", "pnrp.encodedCPA.vMajor", FT_UINT8, BASE_DEC, NULL, 0x0,
+ NULL, HFILL }},
+ { &hf_pnrp_encodedCPA_minorVersion,
+ { "CPA Minor Version", "pnrp.encodedCPA.vMinor", FT_UINT8, BASE_DEC, NULL, 0x0,
+ NULL, HFILL }},
+ /* Encoded CPA flags */
+ { &hf_pnrp_encodedCPA_flags,
+ { "Flags", "pnrp.encodedCPA.flags", FT_UINT8, BASE_HEX, NULL, 0x0,
+ NULL, HFILL }},
+ { &hf_pnrp_encodedCPA_flags_reserved,
+ { "Reserved", "pnrp.encodedCPA.flags.reserved", FT_UINT8, BASE_HEX, NULL, FLAGS_ENCODED_CPA_RESERVED,
+ NULL, HFILL }},
+ { &hf_pnrp_encodedCPA_flags_Xbit,
+ { "CPA has E(X)tended Payload", "pnrp.encodedCPA.flags.xbit", FT_UINT8, BASE_HEX, NULL, FLAGS_ENCODED_CPA_X,
+ NULL, HFILL }},
+ { &hf_pnrp_encodedCPA_flags_Fbit,
+ { "CPA contains (F)riendly Name", "pnrp.encodedCPA.flags.fbit", FT_UINT8, BASE_HEX, NULL, FLAGS_ENCODED_CPA_F,
+ NULL, HFILL }},
+ { &hf_pnrp_encodedCPA_flags_Cbit,
+ { "CPA contains (C)lassifier Hash", "pnrp.encodedCPA.flags.cbit", FT_UINT8, BASE_HEX, NULL, FLAGS_ENCODED_CPA_C,
+ NULL, HFILL }},
+ { &hf_pnrp_encodedCPA_flags_Abit,
+ { "CPA contains Binary (A)uthority field", "pnrp.encodedCPA.flags.abit", FT_UINT8, BASE_HEX, NULL, FLAGS_ENCODED_CPA_A,
+ NULL, HFILL }},
+ { &hf_pnrp_encodedCPA_flags_Ubit,
+ { "Friendly Name in (U)TF-8", "pnrp.encodedCPA.flags.ubit", FT_UINT8, BASE_HEX, NULL, FLAGS_ENCODED_CPA_U,
+ NULL, HFILL }},
+ { &hf_pnrp_encodedCPA_flags_Rbit,
+ { "This is a (r)evoke CPA", "pnrp.encodedCPA.flags.rbit", FT_UINT8, BASE_HEX, NULL, FLAGS_ENCODED_CPA_R,
+ NULL, HFILL }},
+ /* TODO: Find correct way to Display Time */
+ { &hf_pnrp_encodedCPA_notAfter,
+ { "CPA expiration Date", "pnrp.encodedCPA.expirationDate", FT_UINT64,BASE_DEC, NULL, 0x0,
+ "CPA expiration Date since January 1, 1601 UTC", HFILL }},
+ { &hf_pnrp_encodedCPA_serviceLocation,
+ { "Service Location", "pnrp.encodedCPA.serviceLocation", FT_BYTES,BASE_NONE, NULL, 0x0,
+ NULL, HFILL }},
+ { &hf_pnrp_encodedCPA_binaryAuthority,
+ { "Binary Authority", "pnrp.encodedCPA.binaryAuthority", FT_BYTES,BASE_NONE, NULL, 0x0,
+ "SHA-1 Hash of PublicKey Data field", HFILL }},
+ { &hf_pnrp_encodedCPA_classifierHash,
+ { "Classifier Hash", "pnrp.encodedCPA.classifierHash", FT_BYTES,BASE_NONE, NULL, 0x0,
+ "SHA-1 Hash of the classifier text", HFILL }},
+ { &hf_pnrp_encodedCPA_friendlyName,
+ { "Friendly Name of PNRP ID", "pnrp.encodedCPA.friendlyName", FT_STRING,BASE_NONE, NULL, 0x0,
+ "A human-readable label identifying the PNRP ID", HFILL }},
+ /* Lookup Controls */
+ { &hf_pnrp_message_lookupControls_flags,
+ { "Flags", "pnrp.lookupControls.flags", FT_UINT16, BASE_HEX, NULL, 0x0,
+ NULL, HFILL }},
+ { &hf_pnrp_message_lookupControls_flags_reserved,
+ { "Reserved", "pnrp.lookupControls.flags.reserved", FT_UINT16, BASE_HEX, NULL, FLAGS_LOOKUPCONTROLS_RESERVED,
+ NULL, HFILL }},
+ { &hf_pnrp_message_lookupControls_flags_Abit,
+ { "A bit", "pnrp.lookupControls.flags.Abit", FT_UINT16, BASE_HEX, NULL, FLAGS_LOOKUPCONTROLS_A,
+ "Sender is willing to accept returned nodes that are not closer to the target ID than the Validate PNRP ID", HFILL }},
+ { &hf_pnrp_message_lookupControls_flags_0bit,
+ { "0 bit - reserved", "pnrp.lookupControls.flags.0bit", FT_UINT16, BASE_HEX, NULL, FLAGS_LOOKUPCONTROLS_0,
+ NULL, HFILL }},
+ { &hf_pnrp_message_lookupControls_precision,
+ { "Precision", "pnrp.lookupControls.precision", FT_UINT16, BASE_HEX, NULL, 0x0,
+ "Precision - Number of significant bits to match", HFILL }},
+ { &hf_pnrp_message_lookupControls_resolveCriteria,
+ { "Resolve Criteria", "pnrp.lookupControls.resolveCriteria", FT_UINT8, BASE_HEX, VALS(resolveCriteria), 0x0,
+ NULL, HFILL }},
+ { &hf_pnrp_message_lookupControls_reasonCode,
+ { "Reason Code", "pnrp.lookupControls.reasonCode", FT_UINT8, BASE_HEX, VALS(reasonCode), 0x0,
+ NULL, HFILL }},
+ /* Public Key Structure */
+ { &hf_pnrp_publicKey_objID,
+ { "Public Key Object Identifier", "pnrp.publicKey.objID", FT_STRING,BASE_NONE, NULL, 0x0,
+ "An ASN.1-encoded object identifier (OID) indicating the public key format", HFILL }},
+ { &hf_pnrp_publicKey_publicKeyData,
+ { "Public Key Data", "pnrp.publicKey.publicKeyData", FT_STRING,BASE_NONE, NULL, 0x0,
+ "An ASN.1-encoded 1024-bit RSA public key", HFILL }},
+ /* Signature Structure */
+ { &hf_pnrp_signature_signatureData,
+ { "Signature", "pnrp.signature.data", FT_BYTES,BASE_NONE, NULL, 0x0,
+ "Signature created when signing the CPA", HFILL }},
+
+ /* Route Entry */
+ { &hf_pnrp_message_routeEntry_portNumber,
+ { "Port Number", "pnrp.segment.routeEntry.portNumber", FT_UINT16, BASE_DEC, NULL, 0x0,
+ NULL, HFILL }},
+ { &hf_pnrp_message_routeEntry_flags,
+ { "Flags", "pnrp.segment.routeEntry.flags", FT_UINT8, BASE_DEC, NULL, 0x0,
+ NULL, HFILL }},
+ { &hf_pnrp_message_routeEntry_addressCount,
+ { "Address Count", "pnrp.segment.routeEntry.addressCount", FT_UINT8, BASE_DEC, NULL, 0x0,
+ NULL, HFILL }},
+ { &hf_pnrp_message_nonce,
+ { "Nonce", "pnrp.segment.nonce", FT_BYTES, BASE_NONE, NULL, 0x0,
+ NULL, HFILL }},
+ { &hf_pnrp_message_hashednonce,
+ { "Hashed Nonce", "pnrp.segment.hashednonce", FT_BYTES, BASE_NONE, NULL, 0x0,
+ NULL, HFILL }},
+ { &hf_pnrp_message_idArray_NumEntries,
+ { "Number of Entries", "pnrp.segment.idArray.NumEntries", FT_UINT16, BASE_DEC, NULL, 0x0,
+ NULL, HFILL }},
+ { &hf_pnrp_message_idArray_Length,
+ { "Length of Array", "pnrp.segment.idArray.Length", FT_UINT16, BASE_DEC, NULL, 0x0,
+ NULL, HFILL }},
+ { &hf_pnrp_message_ElementFieldType,
+ { "Type of Array Entry", "pnrp.segment.ElementFieldType", FT_UINT16, BASE_HEX, VALS(fieldID), 0x0,
+ NULL, HFILL }},
+ { &hf_pnrp_message_idarray_Entrylength,
+ { "Length of each Array Entry", "pnrp.segment.idArray.Entrylength", FT_UINT16, BASE_DEC, NULL, 0x0,
+ NULL, HFILL }},
+ { &hf_pnrp_message_certChain,
+ { "Certificate Chain", "pnrp.segment.certChain", FT_BYTES,BASE_NONE, NULL, 0x0,
+ "A Certificate Chain, containing the public key used to sign the CPA and its Certificate Chain", HFILL }},
+ { &hf_pnrp_message_solicitType,
+ { "Solicit Type", "pnrp.segment.solicitType", FT_UINT8, BASE_DEC, VALS(solicitType), 0x0,
+ NULL, HFILL }},
+ { &hf_pnrp_message_ipv6,
+ { "IPv6 Address","pnrp.segment.ipv6Address",FT_IPv6, BASE_NONE, NULL, 0x0,NULL,HFILL}},
+
+ { &hf_pnrp_fragments,
+ { "Fragments", "pnrp.segment.splitControls.fragments", FT_NONE, BASE_NONE, NULL, 0,
+ NULL, HFILL }},
+ { &hf_pnrp_fragment,
+ { "Fragment", "pnrp.segment.splitControls.fragment", FT_FRAMENUM, BASE_NONE, NULL, 0,
+ NULL, HFILL }},
+ { &hf_pnrp_fragment_overlap,
+ { "Fragment Overlap", "pnrp.segment.splitControls.fragment_overlap", FT_BOOLEAN, BASE_NONE, NULL, 0,
+ NULL, HFILL }},
+ { &hf_pnrp_fragment_overlap_conflict,
+ { "Fragment Overlap Conflict", "pnrp.segment.splitControls.fragment_overlap_conflict", FT_BOOLEAN, BASE_NONE, NULL, 0,
+ NULL, HFILL }},
+ { &hf_pnrp_fragment_multiple_tails,
+ { "Fragment Multiple Tails", "pnrp.segment.splitControls.fragment_multiple_tails", FT_BOOLEAN, BASE_NONE, NULL, 0,
+ NULL, HFILL }},
+ { &hf_pnrp_fragment_too_long_fragment,
+ { "Too Long Fragment", "pnrp.segment.splitControls.fragment_too_long_fragment", FT_BOOLEAN, BASE_NONE, NULL, 0,
+ NULL, HFILL }},
+ { &hf_pnrp_fragment_error,
+ { "Fragment Error", "pnrp.segment.splitControls.fragment_error", FT_FRAMENUM, BASE_NONE, NULL, 0,
+ NULL, HFILL }},
+ { &hf_pnrp_fragment_count,
+ { "Fragment Count", "pnrp.segment.splitControls.fragment_count", FT_UINT32, BASE_DEC, NULL, 0,
+ NULL, HFILL }},
+ { &hf_pnrp_reassembled_in,
+ { "Reassembled In", "pnrp.segment.splitControls.reassembled_in", FT_FRAMENUM, BASE_NONE, NULL, 0,
+ NULL, HFILL }},
+ { &hf_pnrp_reassembled_length,
+ { "Reassembled Length", "pnrp.segment.splitControls.reassembled_length", FT_UINT32, BASE_DEC, NULL, 0,
+ NULL, HFILL }},
+ { &hf_pnrp_reassembled_data,
+ { "Reassembled Data", "pnrp.segment.splitControls.reassembled_data", FT_BYTES, BASE_NONE, NULL, 0,
+ NULL, HFILL }},
+ { &hf_pnrp_fragmented_payload,
+ { "Fragmented Payload", "pnrp.segment.splitControls.fragmented_payload", FT_BYTES, BASE_NONE, NULL, 0,
+ NULL, HFILL }},
+
+ /* Generated from convert_proto_tree_add_text.pl */
+ { &hf_pnrp_message_flags, { "Flags", "pnrp.segment.flags", FT_UINT32, BASE_HEX, NULL, 0x0, NULL, HFILL }},
+ { &hf_pnrp_reserved8, { "Reserved", "pnrp.reserved", FT_UINT8, BASE_DEC, NULL, 0x0, NULL, HFILL }},
+ { &hf_pnrp_reserved16, { "Reserved", "pnrp.reserved", FT_UINT16, BASE_DEC, NULL, 0x0, NULL, HFILL }},
+ { &hf_pnrp_message_offset, { "Offset", "pnrp.segment.offset", FT_UINT16, BASE_DEC, NULL, 0x0, NULL, HFILL }},
+ { &hf_pnrp_message_data, { "Data", "pnrp.segment.data", FT_BYTES, BASE_NONE, NULL, 0x0, NULL, HFILL }},
+ { &hf_pnrp_message_port_number, { "Port Number", "pnrp.segment.port_number", FT_UINT16, BASE_DEC, NULL, 0x0, NULL, HFILL }},
+ { &hf_pnrp_encodedCPA_friendlyName_length, { "Length of Friendly name", "pnrp.encodedCPA.friendlyName.length", FT_UINT16, BASE_DEC, NULL, 0x0, NULL, HFILL }},
+ { &hf_pnrp_encodedCPA_number_of_service_addresses, { "Number of Service Addresses", "pnrp.encodedCPA.number_of_service_addresses", FT_UINT16, BASE_DEC, NULL, 0x0, NULL, HFILL }},
+ { &hf_pnrp_encodedCPA_service_address_length, { "Service Address Length", "pnrp.encodedCPA.service_address_length", FT_UINT16, BASE_DEC, NULL, 0x0, NULL, HFILL }},
+ { &hf_pnrp_encodedCPA_number_of_payload_structures, { "Number of Payload Structures", "pnrp.encodedCPA.number_of_payload_structures", FT_UINT16, BASE_DEC, NULL, 0x0, NULL, HFILL }},
+ { &hf_pnrp_encodedCPA_total_bytes_of_payload, { "Total Bytes of Payload", "pnrp.encodedCPA.total_bytes_of_payload", FT_UINT16, BASE_DEC, NULL, 0x0, NULL, HFILL }},
+ { &hf_pnrp_payload_type, { "Payload Type", "pnrp.payload.type", FT_UINT32, BASE_DEC, NULL, 0x0, NULL, HFILL }},
+ { &hf_pnrp_length_of_data, { "Length of Data", "pnrp.payload.length", FT_UINT16, BASE_DEC, NULL, 0x0, NULL, HFILL }},
+ { &hf_pnrp_payload_port, { "Port Number", "pnrp.payload.port", FT_UINT16, BASE_DEC, NULL, 0x0, NULL, HFILL }},
+ { &hf_pnrp_payload_iana_proto, { "IANA Protocol Number", "pnrp.payload.iana_proto", FT_UINT16, BASE_DEC, NULL, 0x0, NULL, HFILL }},
+ { &hf_pnrp_publicKey_length_of_structure, { "Length of Structure", "pnrp.publicKey.structure_length", FT_UINT16, BASE_DEC, NULL, 0x0, NULL, HFILL }},
+ { &hf_pnrp_publicKey_size_of_algorithm_oid, { "Size of Algorithm OID", "pnrp.publicKey.algorithm_oid_size", FT_UINT16, BASE_DEC, NULL, 0x0, NULL, HFILL }},
+ { &hf_pnrp_publicKey_reserved, { "Reserved", "pnrp.publicKey.reserved", FT_UINT16, BASE_DEC, NULL, 0x0, NULL, HFILL }},
+ { &hf_pnrp_publicKey_size_of_cbdata, { "Size of cbData", "pnrp.publicKey.cbdata_size", FT_UINT16, BASE_DEC, NULL, 0x0, NULL, HFILL }},
+ { &hf_pnrp_publicKey_unused_bits, { "Unused Bits", "pnrp.publicKey.unused_bits", FT_UINT8, BASE_DEC, NULL, 0x0, NULL, HFILL }},
+ { &hf_pnrp_signature_structure_length, { "Length of Structure", "pnrp.signature.structure_length", FT_UINT16, BASE_DEC, NULL, 0x0, NULL, HFILL }},
+ { &hf_pnrp_signature_length, { "Length of Signature", "pnrp.signature.length", FT_UINT16, BASE_DEC, NULL, 0x0, NULL, HFILL }},
+ { &hf_pnrp_signature_hash_id, { "Hash Algorithm Identifier", "pnrp.signature.hash_id", FT_UINT32, BASE_HEX, NULL, 0x0, NULL, HFILL }},
+
+ };
+
+ /* Protocol subtree array */
+ static gint *ett[] = {
+ &ett_pnrp,
+ &ett_pnrp_header,
+ &ett_pnrp_message,
+ &ett_pnrp_message_inquire_flags,
+ &ett_pnrp_message_authority_flags,
+ &ett_pnrp_message_encodedCPA,
+ &ett_pnrp_message_encodedCPA_flags,
+ &ett_pnrp_message_payloadStructure,
+ &ett_pnrp_message_publicKeyStructure,
+ &ett_pnrp_message_signatureStructure,
+ &ett_pnrp_message_lookupControls_flags,
+ &ett_pnrp_fragment,
+ &ett_pnrp_fragments
+ };
+ /* Register the Dissector with Wireshark */
+ proto_pnrp = proto_register_protocol(PROTONAME,PROTOSHORTNAME,PROTOABBREV);
+
+ proto_register_field_array(proto_pnrp,hf,array_length(hf));
+ proto_register_subtree_array (ett, array_length(ett));
+
+ pnrp_handle = register_dissector(PROTOABBREV, dissect_pnrp, proto_pnrp);
+
+ reassembly_table_register(&pnrp_reassembly_table,
+ &addresses_reassembly_table_functions);
+}
+
+/* Initialise the dissector */
+void proto_reg_handoff_pnrp(void)
+{
+ dissector_add_uint_with_preference("udp.port",PNRP_PORT,pnrp_handle);
+}
+
+/*
+ * Editor modelines - https://www.wireshark.org/tools/modelines.html
+ *
+ * Local variables:
+ * c-basic-offset: 4
+ * tab-width: 8
+ * indent-tabs-mode: nil
+ * End:
+ *
+ * vi: set shiftwidth=4 tabstop=8 expandtab:
+ * :indentSize=4:tabSize=8:noTabs=true:
+ */