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-rw-r--r--epan/dissectors/packet-hdfsdata.c785
1 files changed, 785 insertions, 0 deletions
diff --git a/epan/dissectors/packet-hdfsdata.c b/epan/dissectors/packet-hdfsdata.c
new file mode 100644
index 00000000..a2e6f6be
--- /dev/null
+++ b/epan/dissectors/packet-hdfsdata.c
@@ -0,0 +1,785 @@
+/* packet-hdfsdata.c
+ * HDFS data Protocol and dissectors
+ *
+ * Copyright (c) 2011 by Isilon Systems.
+ *
+ * Author: Allison Obourn <aobourn@isilon.com>
+ *
+ * Wireshark - Network traffic analyzer
+ * By Gerald Combs <gerald@wireshark.org>
+ * Copyright 1999 Gerald Combs
+ *
+ * SPDX-License-Identifier: GPL-2.0-or-later
+ */
+
+
+#include "config.h"
+
+#include <epan/packet.h>
+#include "packet-tcp.h"
+
+void proto_register_hdfsdata(void);
+void proto_reg_handoff_hdfsdata(void);
+
+#if 0
+#define NAMENODE_PORT 8020
+#define DATANODE_PORT 8021
+#endif
+
+#define FIRST_READ_FRAGMENT_LEN 15
+#define SECOND_READ_FRAGMENT_LEN 29
+#define LAST_READ_FRAGMENT_LEN 4
+#define WRITE_OP 80
+#define READ_OP 81
+#define MIN_WRITE_REQ 35
+#define MIN_READ_REQ 36
+
+#define STATUS_SUCCESS 6
+#define PIPELINE_LEN 1
+#define STATUS_LEN 2
+#define FINISH_REQ_LEN 4
+#define END_PACKET_LEN 8
+#define READ_RESP_HEAD_LEN 19
+#define WRITE_RESP_HEAD_LEN 21
+#define WRITE_REQ_HEAD_LEN 7
+
+#define CRC 1
+#define CRC_SIZE 8.0
+#define CHUNKSIZE_START 3
+
+
+#if 0
+static const int RESPONSE_HEADER = 1;
+static const int RESPONSE_METADATA = 2;
+static const int RESPONSE_DATA = 3;
+#endif
+
+static int proto_hdfsdata = -1;
+static int hf_hdfsdata_version = -1;
+static int hf_hdfsdata_cmd = -1;
+static int hf_hdfsdata_blockid = -1;
+static int hf_hdfsdata_timestamp = -1;
+static int hf_hdfsdata_startoffset = -1;
+static int hf_hdfsdata_blocklen = -1;
+static int hf_hdfsdata_clientlen = -1;
+static int hf_hdfsdata_clientid = -1;
+static int hf_hdfsdata_tokenlen = -1;
+static int hf_hdfsdata_tokenid = -1;
+static int hf_hdfsdata_tokenpassword = -1;
+static int hf_hdfsdata_tokentype = -1;
+static int hf_hdfsdata_tokenservice = -1;
+static int hf_hdfsdata_status = -1;
+static int hf_hdfsdata_checksumtype = -1;
+static int hf_hdfsdata_chunksize = -1;
+static int hf_hdfsdata_chunkoffset = -1;
+static int hf_hdfsdata_datalength = -1;
+static int hf_hdfsdata_inblockoffset = -1;
+static int hf_hdfsdata_seqnum = -1;
+static int hf_hdfsdata_last = -1;
+static int hf_hdfsdata_crc32 = -1;
+static int hf_hdfsdata_datalen = -1;
+static int hf_hdfsdata_rest = -1;
+static int hf_hdfsdata_end = -1;
+static int hf_hdfsdata_packetsize = -1;
+static int hf_hdfsdata_chunklength = -1;
+static int hf_hdfsdata_crc64 = -1;
+static int hf_hdfsdata_pipelinestatus = -1;
+
+static int hf_hdfsdata_pipelinenum = -1;
+static int hf_hdfsdata_recovery = -1;
+static int hf_hdfsdata_sourcenode = -1;
+static int hf_hdfsdata_currentpipeline = -1;
+static int hf_hdfsdata_node = -1;
+
+static gint ett_hdfsdata = -1;
+
+static dissector_handle_t hdfsdata_handle;
+
+/* Taken from HDFS
+ Parse the first byte of a vint/vlong to determine the number of bytes
+ value is the first byte of the vint/vlong
+ returns the total number of bytes (1 to 9) */
+static int
+decode_vint_size (gint8 value) {
+ if (value >= -112) {
+ return 1;
+ } else if (value < -120) {
+ return -119 - value;
+ }
+ return -111 - value;
+}
+
+/* Taken from HDFS
+ converts a variable length number into a long and discovers how many bytes it is
+ returns the decoded number */
+static guint
+dissect_variable_length_long (tvbuff_t *tvb, proto_tree *hdfsdata_tree, int* offset)
+{
+ int byte_count = 1;
+ int idx = 0;
+ guint i = 0;
+ gint8 first_byte = tvb_get_guint8(tvb, *offset);
+ guint size = 0;
+
+ int len = decode_vint_size(first_byte);
+ if (len == 1) {
+ proto_tree_add_item(hdfsdata_tree, hf_hdfsdata_clientlen, tvb, *offset, byte_count, ENC_BIG_ENDIAN);
+ *offset = (*offset) + byte_count;
+ return first_byte;
+ }
+
+ for (idx = 0; idx < len-1; idx++) {
+ char b = tvb_get_guint8(tvb, *offset + byte_count);
+ byte_count++;
+ i = i << 8;
+ i = i | (b & 0xFF);
+ }
+ size = ((first_byte < -120 || (first_byte >= -112 && first_byte < 0)) ? (i ^ 0xFFFFFFFF) : i);
+ proto_tree_add_item(hdfsdata_tree, hf_hdfsdata_clientlen, tvb, *offset, byte_count, ENC_BIG_ENDIAN);
+ *offset = (*offset) + byte_count;
+
+ return size;
+}
+
+/* dissects a variable length int and then using its value dissects the following string */
+static void
+dissect_variable_int_string(tvbuff_t *tvb, proto_tree *hdfsdata_tree, int *offset)
+{
+ /* Get the variable length int that represents the length of the next feild */
+ int len = dissect_variable_length_long (tvb, hdfsdata_tree, offset);
+
+ /* client id = amount of bytes in previous */
+ proto_tree_add_item(hdfsdata_tree, hf_hdfsdata_clientid, tvb, *offset, len, ENC_ASCII);
+ *offset += len;
+}
+
+/* dissects the access tokens that appear at the end of requests.
+ tokens: id, password, kind, service */
+static void
+dissect_access_tokens(tvbuff_t *tvb, proto_tree *hdfsdata_tree, int *offset)
+{
+ int len = 0;
+
+ len = tvb_get_guint8(tvb, *offset);
+ proto_tree_add_item(hdfsdata_tree, hf_hdfsdata_tokenlen, tvb, *offset, 1, ENC_BIG_ENDIAN);
+ *offset += 1;
+
+ /* token id = amount of bytes in previous */
+ proto_tree_add_item(hdfsdata_tree, hf_hdfsdata_tokenid, tvb, *offset, len, ENC_ASCII);
+ *offset += len;
+
+ len = tvb_get_guint8(tvb, *offset);
+ proto_tree_add_item(hdfsdata_tree, hf_hdfsdata_tokenlen, tvb, *offset, 1, ENC_BIG_ENDIAN);
+ *offset += 1;
+
+ /* token password = amount of bytes in previous */
+ proto_tree_add_item(hdfsdata_tree, hf_hdfsdata_tokenpassword, tvb, *offset, len, ENC_ASCII);
+ *offset += len;
+
+ len = tvb_get_guint8(tvb, *offset);
+ proto_tree_add_item(hdfsdata_tree, hf_hdfsdata_tokenlen, tvb, *offset, 1, ENC_BIG_ENDIAN);
+ *offset += 1;
+
+ /* token type = amount of bytes in previous */
+ proto_tree_add_item(hdfsdata_tree, hf_hdfsdata_tokentype, tvb, *offset, len, ENC_ASCII);
+ *offset += len;
+
+ len = tvb_get_guint8(tvb, *offset);
+ proto_tree_add_item(hdfsdata_tree, hf_hdfsdata_tokenlen, tvb, *offset, 1, ENC_BIG_ENDIAN);
+ *offset += 1;
+
+ /* token service = amount of bytes in previous; */
+ proto_tree_add_item(hdfsdata_tree, hf_hdfsdata_tokenservice, tvb, *offset, len, ENC_ASCII);
+ *offset += len;
+}
+
+/* handles parsing read response packets */
+static void
+dissect_read_response(tvbuff_t *tvb, proto_tree *hdfsdata_tree, int offset)
+{
+ int len = 0;
+ guint32 chunksize;
+
+ /* 4 bytes = data length */
+ proto_tree_add_item(hdfsdata_tree, hf_hdfsdata_datalength, tvb, offset, 4, ENC_BIG_ENDIAN);
+ offset += 4;
+
+ /* 8 bytes = in block offset */
+ proto_tree_add_item(hdfsdata_tree, hf_hdfsdata_inblockoffset, tvb, offset, 8, ENC_BIG_ENDIAN);
+ offset += 8;
+
+ /* 8 bytes = sequence number */
+ proto_tree_add_item(hdfsdata_tree, hf_hdfsdata_seqnum, tvb, offset, 8, ENC_BIG_ENDIAN);
+ offset += 8;
+
+ /* 1 byte = last packet in block */
+ proto_tree_add_item(hdfsdata_tree, hf_hdfsdata_last, tvb, offset, 1, ENC_BIG_ENDIAN);
+ offset += 1;
+
+ /* 4 byte = length of data */
+ proto_tree_add_item(hdfsdata_tree, hf_hdfsdata_datalen, tvb, offset, 4, ENC_BIG_ENDIAN);
+ offset += 4;
+
+ /* if there is a crc checksum it is 8* the length of the data * checksum size / chunksize */
+ chunksize = tvb_get_ntohl(tvb, CHUNKSIZE_START);
+ if (chunksize == 0) /* let's not divide by zero */
+ return;
+ if (tvb_get_guint8(tvb, 2) == CRC) {
+ len = (int)(CRC_SIZE * tvb_get_ntohl(tvb, offset - 4) *
+ tvb_get_ntohl(tvb, offset - 8) / chunksize);
+ }
+
+ /* the rest of bytes (usually 4) = crc32 code */
+ proto_tree_add_item(hdfsdata_tree, hf_hdfsdata_crc32, tvb, offset, len, ENC_BIG_ENDIAN);
+ /* offset += len; */
+}
+
+/* dissects the first packet of the read response */
+static void
+dissect_read_response_start(tvbuff_t *tvb, proto_tree *hdfsdata_tree, int offset) {
+ /* 2 bytes = status code */
+ proto_tree_add_item(hdfsdata_tree, hf_hdfsdata_status, tvb, offset, 2, ENC_BIG_ENDIAN);
+ offset += 2;
+
+ /* checksum type = 1 byte. 1 = crc32, 0 = null */
+ proto_tree_add_item(hdfsdata_tree, hf_hdfsdata_checksumtype, tvb, offset, 1, ENC_BIG_ENDIAN);
+ offset += 1;
+
+ /* 4 bytes = chunksize */
+ proto_tree_add_item(hdfsdata_tree, hf_hdfsdata_chunksize, tvb, offset, 4, ENC_BIG_ENDIAN);
+ offset += 4;
+
+ /* 8 bytes = chunk offset */
+ proto_tree_add_item(hdfsdata_tree, hf_hdfsdata_chunkoffset, tvb, offset, 8, ENC_BIG_ENDIAN);
+ /* offset += 8; */
+}
+
+/* dissects the fields specific to a read request */
+static void
+dissect_read_request(tvbuff_t *tvb, proto_tree *hdfsdata_tree, int *offset)
+{
+
+ /* 8 bytes = start offset */
+ proto_tree_add_item(hdfsdata_tree, hf_hdfsdata_startoffset, tvb, *offset, 8, ENC_BIG_ENDIAN);
+ *offset += 8;
+
+ /* 8 bytes = block length */
+ proto_tree_add_item(hdfsdata_tree, hf_hdfsdata_blocklen, tvb, *offset, 8, ENC_BIG_ENDIAN);
+ *offset += 8;
+
+}
+
+/* dissects the fields specific to a write request */
+static void
+dissect_write_request(tvbuff_t *tvb, proto_tree *hdfsdata_tree, int *offset)
+{
+ /* 4 bytes = number of nodes in pipeline */
+ proto_tree_add_item(hdfsdata_tree, hf_hdfsdata_pipelinenum, tvb, *offset, 4, ENC_BIG_ENDIAN);
+ *offset += 4;
+
+ /* 1 bytes = recovery boolean */
+ proto_tree_add_item(hdfsdata_tree, hf_hdfsdata_recovery, tvb, *offset, 1, ENC_BIG_ENDIAN);
+ *offset += 1;
+}
+
+/* dissects the fields specific to a write request */
+static void
+dissect_write_request_end(tvbuff_t *tvb, proto_tree *hdfsdata_tree, int *offset)
+{
+ int i = 0;
+ int len = 0;
+
+ /* 1 bytes = source node */
+ proto_tree_add_item(hdfsdata_tree, hf_hdfsdata_sourcenode, tvb, *offset, 1, ENC_BIG_ENDIAN);
+ *offset += 1;
+
+ /* 4 bytes = number of nodes currently in the pipeline (usually just -1 of before) */
+ len = tvb_get_ntohl(tvb, *offset);
+ proto_tree_add_item(hdfsdata_tree, hf_hdfsdata_currentpipeline, tvb, *offset, 4, ENC_BIG_ENDIAN);
+ *offset += 4;
+
+ /* varible length sequence of node objects */
+ for (i = 0; i < len; i++) {
+ proto_tree_add_item(hdfsdata_tree, hf_hdfsdata_node, tvb, *offset, 4, ENC_BIG_ENDIAN);
+ *offset += 4;
+ }
+}
+
+/* dissects the beginning of the read and write request messages */
+static int
+dissect_header(tvbuff_t *tvb, proto_tree *hdfsdata_tree, int* offset){
+
+ int command = 0;
+
+ /* 2 bytes = protocol version */
+ proto_tree_add_item(hdfsdata_tree, hf_hdfsdata_version, tvb, *offset, 2, ENC_BIG_ENDIAN);
+ *offset += 2;
+
+ /* 1 byte = command */
+ command = tvb_get_guint8(tvb, *offset);
+ proto_tree_add_item(hdfsdata_tree, hf_hdfsdata_cmd, tvb, *offset, 1, ENC_BIG_ENDIAN);
+ *offset += 1;
+
+ /* 8 bytes = block id */
+ proto_tree_add_item(hdfsdata_tree, hf_hdfsdata_blockid, tvb, *offset, 8, ENC_BIG_ENDIAN);
+ *offset += 8;
+
+ /* 8 bytes = timestamp */
+ proto_tree_add_item(hdfsdata_tree, hf_hdfsdata_timestamp, tvb, *offset, 8, ENC_BIG_ENDIAN);
+ *offset += 8;
+
+ return command;
+}
+
+/* decodes the write response messages */
+static void
+dissect_write_response(tvbuff_t *tvb, proto_tree *hdfsdata_tree, int offset)
+{
+ /* 4 bytes = packetsize */
+ proto_tree_add_item(hdfsdata_tree, hf_hdfsdata_packetsize, tvb, offset, 4, ENC_BIG_ENDIAN);
+ offset += 4;
+
+ /* 8 bytes = offset in block */
+ proto_tree_add_item(hdfsdata_tree, hf_hdfsdata_startoffset, tvb, offset, 8, ENC_BIG_ENDIAN);
+ offset += 8;
+
+ /* 8 bytes = sequence number */
+ proto_tree_add_item(hdfsdata_tree, hf_hdfsdata_seqnum, tvb, offset, 8, ENC_BIG_ENDIAN);
+ offset += 8;
+
+ /* 1 bytes = last packet */
+ proto_tree_add_item(hdfsdata_tree, hf_hdfsdata_last, tvb, offset, 1, ENC_BIG_ENDIAN);
+ offset += 1;
+
+ /* 4 bytes = chunk length */
+ proto_tree_add_item(hdfsdata_tree, hf_hdfsdata_chunklength, tvb, offset, 4, ENC_BIG_ENDIAN);
+ offset += 4;
+
+ /* 8 bytes = crc code */
+ proto_tree_add_item(hdfsdata_tree, hf_hdfsdata_crc64, tvb, offset, 8, ENC_BIG_ENDIAN);
+ offset += 8;
+
+ /* add the rest -> RESPONSE_DATA */
+ proto_tree_add_item(hdfsdata_tree, hf_hdfsdata_rest, tvb, offset, (tvb_reported_length(tvb)) - offset, ENC_ASCII);
+ /* offset += (tvb_reported_length(tvb)); */
+}
+
+/* determine PDU length of protocol */
+static guint
+get_hdfsdata_message_len(packet_info *pinfo _U_, tvbuff_t *tvb, int offset, void *data _U_)
+{
+ /* get data packet len, add FIRST_READ_FRAGMENT_LEN for first fragment (before len),
+ SECOND_READ_FRAGMENT_LEN for second fragment (incl len), subtract 4 for length itself. */
+
+ if (tvb_reported_length(tvb) <= 4 || tvb_reported_length(tvb) == END_PACKET_LEN
+ || tvb_get_ntohl(tvb, 0) == tvb_reported_length(tvb) - WRITE_RESP_HEAD_LEN
+ || (tvb_reported_length(tvb) >= MIN_READ_REQ && tvb_get_guint8(tvb, 2) == READ_OP)
+ || (tvb_reported_length(tvb) >= MIN_WRITE_REQ && tvb_get_guint8(tvb, 2) == WRITE_OP)) {
+
+ return tvb_reported_length(tvb);
+ }
+ return tvb_get_ntohl(tvb, offset + FIRST_READ_FRAGMENT_LEN) +
+ FIRST_READ_FRAGMENT_LEN + SECOND_READ_FRAGMENT_LEN - LAST_READ_FRAGMENT_LEN;
+}
+
+/* This method dissects fully reassembled messages */
+static int
+dissect_hdfsdata_message(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, void* data _U_)
+{
+ int offset = 0;
+
+ col_set_str(pinfo->cinfo, COL_PROTOCOL, "HDFSDATA");
+ /* Clear out stuff in the info column */
+ col_set_str(pinfo->cinfo, COL_INFO, "HDFS Data");
+
+
+ if (tree) {
+ proto_item *ti = NULL;
+ proto_tree *hdfsdata_tree = NULL;
+
+ ti = proto_tree_add_item(tree, proto_hdfsdata, tvb, offset, -1, ENC_NA);
+ hdfsdata_tree = proto_item_add_subtree(ti, ett_hdfsdata);
+
+ /* if only 1 bytes packet must just contain just the pipeline status */
+ if ((tvb_reported_length(tvb)) == PIPELINE_LEN) {
+
+ /* 1 bytes = pipeline status */
+ proto_tree_add_item(hdfsdata_tree, hf_hdfsdata_pipelinestatus, tvb, offset, PIPELINE_LEN, ENC_BIG_ENDIAN);
+
+ /* if only 2 bytes packet must just contain just a status code */
+ } else if ((tvb_reported_length(tvb)) == STATUS_LEN) {
+ /* 2 bytes = status code */
+ proto_tree_add_item(hdfsdata_tree, hf_hdfsdata_status, tvb, offset, STATUS_LEN, ENC_BIG_ENDIAN);
+
+ /* if it is 4 bytes long it must be a finish request packet */
+ } else if ((tvb_reported_length(tvb)) == FINISH_REQ_LEN) {
+ proto_tree_add_item(hdfsdata_tree, hf_hdfsdata_end, tvb, offset, 4, ENC_BIG_ENDIAN);
+
+ /* read response packet */
+ } else if (tvb_reported_length(tvb) >= READ_RESP_HEAD_LEN && tvb_reported_length(tvb) ==
+ tvb_get_ntohl(tvb, FIRST_READ_FRAGMENT_LEN) +
+ FIRST_READ_FRAGMENT_LEN + SECOND_READ_FRAGMENT_LEN - LAST_READ_FRAGMENT_LEN){
+
+ dissect_read_response_start(tvb, hdfsdata_tree, offset);
+ offset += FIRST_READ_FRAGMENT_LEN;
+
+ dissect_read_response(tvb, hdfsdata_tree, offset);
+ offset+= SECOND_READ_FRAGMENT_LEN;
+
+ /* This message just contains data so we can display it all as one block */
+
+ proto_tree_add_item(hdfsdata_tree, hf_hdfsdata_rest, tvb, offset, (tvb_reported_length(tvb)) - offset, ENC_ASCII);
+
+ } else {
+
+ guint8 op = tvb_get_guint8(tvb, 2);
+
+ /* READ request */
+ if ((tvb_reported_length(tvb)) >= MIN_READ_REQ && op == READ_OP) {
+ dissect_header(tvb, hdfsdata_tree, &offset);
+ dissect_read_request(tvb, hdfsdata_tree, &offset);
+ dissect_variable_int_string(tvb, hdfsdata_tree, &offset);
+ dissect_access_tokens(tvb, hdfsdata_tree, &offset);
+
+ /* WRITE request */
+ } else if ((tvb_reported_length(tvb)) >= MIN_WRITE_REQ && op == WRITE_OP) {
+ dissect_header(tvb, hdfsdata_tree, &offset);
+ dissect_write_request(tvb, hdfsdata_tree, &offset);
+ dissect_variable_int_string(tvb, hdfsdata_tree, &offset);
+ dissect_write_request_end(tvb, hdfsdata_tree, &offset);
+ dissect_access_tokens(tvb, hdfsdata_tree, &offset);
+
+ /* checksum type = 1 byte. 1 = crc32, 0 = null */
+ proto_tree_add_item(hdfsdata_tree, hf_hdfsdata_checksumtype, tvb, offset, 1, ENC_BIG_ENDIAN);
+ offset += 1;
+
+ /* 4 bytes = chunksize */
+ proto_tree_add_item(hdfsdata_tree, hf_hdfsdata_chunksize, tvb, offset, 4, ENC_BIG_ENDIAN);
+
+ /* write responses store the data length in the first 4 bytes. This length does not
+ include 21 bits of header */
+ } else if (tvb_reported_length(tvb) >= 4 && tvb_get_ntohl(tvb, 0) ==
+ tvb_reported_length(tvb) - WRITE_RESP_HEAD_LEN) {
+
+ dissect_write_response(tvb, hdfsdata_tree, offset);
+
+ } else {
+ /* This message contains some form of data that we have not successfully been able to
+ pattern match and catagorize. Display all of it as data. */
+ proto_tree_add_item(hdfsdata_tree, hf_hdfsdata_rest, tvb, offset, (tvb_reported_length(tvb)), ENC_ASCII);
+ }
+ }
+ }
+
+ return tvb_captured_length(tvb);
+}
+
+static int
+dissect_hdfsdata(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, void* data)
+{
+ int frame_header_len = 0;
+
+ gboolean need_reassemble = FALSE;
+ guint8 op = 0;
+ gboolean only_packet = tvb_reported_length(tvb) == 1 || (tvb_reported_length(tvb) == 2 &&
+ tvb_get_ntohs(tvb, 0) == STATUS_SUCCESS);
+
+ if (tvb_reported_length(tvb) >= 3)
+ op = tvb_get_guint8(tvb, 2);
+
+ if (!only_packet && tvb_reported_length(tvb) != 4 && !(tvb_reported_length(tvb) >= MIN_READ_REQ && op == READ_OP) &&
+ !(tvb_reported_length(tvb) >= MIN_WRITE_REQ && op == WRITE_OP) && !(tvb_reported_length(tvb) == END_PACKET_LEN &&
+ !tvb_get_ntohl(tvb, 0) && !tvb_get_ntohl(tvb, 4))) {
+
+ need_reassemble = TRUE;
+ }
+
+ /* setting the header size for the different types of packets */
+ if (only_packet || tvb_reported_length(tvb) == END_PACKET_LEN) {
+ frame_header_len = tvb_reported_length(tvb);
+
+ } else if (tvb_reported_length(tvb) == FIRST_READ_FRAGMENT_LEN ||(tvb_reported_length(tvb) >= MIN_READ_REQ &&
+ op == READ_OP && !((tvb_reported_length(tvb)) == 2 && !tvb_get_ntohs(tvb, 0)))) {
+
+ frame_header_len = READ_RESP_HEAD_LEN;
+
+ } else if (tvb_reported_length(tvb) >= MIN_WRITE_REQ && op == WRITE_OP) {
+ frame_header_len = WRITE_REQ_HEAD_LEN;
+ }
+
+ tcp_dissect_pdus(tvb, pinfo, tree, need_reassemble, frame_header_len, get_hdfsdata_message_len, dissect_hdfsdata_message, data);
+ return tvb_captured_length(tvb);
+}
+
+/* registers the protcol with the given names */
+void
+proto_register_hdfsdata(void)
+{
+ static hf_register_info hf[] = {
+
+ /* list of all options for dissecting the protocol */
+
+ /*************************************************
+ Read request
+ **************************************************/
+ { &hf_hdfsdata_version,
+ { "HDFSDATA protocol version", "hdfsdata.version",
+ FT_UINT16, BASE_DEC,
+ NULL, 0x0,
+ NULL, HFILL }
+ },
+ { &hf_hdfsdata_cmd,
+ { "HDFSDATA command", "hdfsdata.cmd",
+ FT_UINT8, BASE_DEC,
+ NULL, 0x0,
+ NULL, HFILL }
+ },
+ { &hf_hdfsdata_blockid,
+ { "HDFSDATA block id", "hdfsdata.blockid",
+ FT_UINT64, BASE_DEC,
+ NULL, 0x0,
+ NULL, HFILL }
+ },
+ { &hf_hdfsdata_timestamp,
+ { "HDFSDATA timestamp", "hdfsdata.timestamp",
+ FT_UINT64, BASE_DEC,
+ NULL, 0x0,
+ NULL, HFILL }
+ },
+ /***
+ Read specific
+ ***/
+ { &hf_hdfsdata_startoffset,
+ { "HDFSDATA start offset", "hdfsdata.startoffset",
+ FT_UINT64, BASE_DEC,
+ NULL, 0x0,
+ NULL, HFILL }
+ },
+ { &hf_hdfsdata_blocklen,
+ { "HDFSDATA block length", "hdfsdata.blocklen",
+ FT_UINT64, BASE_DEC,
+ NULL, 0x0,
+ NULL, HFILL }
+ },
+ /***
+ Write specific
+ ***/
+ { &hf_hdfsdata_pipelinenum,
+ { "HDFSDATA number in pipeline", "hdfsdata.pipelinenum",
+ FT_UINT32, BASE_DEC,
+ NULL, 0x0,
+ NULL, HFILL }
+ },
+ { &hf_hdfsdata_recovery,
+ { "HDFSDATA recovery boolean", "hdfsdata.recovery",
+ FT_UINT8, BASE_DEC,
+ NULL, 0x0,
+ NULL, HFILL }
+ },
+ { &hf_hdfsdata_sourcenode,
+ { "HDFSDATA source node", "hdfsdata.sourcenode",
+ FT_UINT8, BASE_DEC,
+ NULL, 0x0,
+ NULL, HFILL }
+ },
+ { &hf_hdfsdata_currentpipeline,
+ { "HDFSDATA current number of nodes in the pipeline", "hdfsdata.currentpipline",
+ FT_UINT32, BASE_DEC,
+ NULL, 0x0,
+ NULL, HFILL }
+ },
+ { &hf_hdfsdata_node,
+ { "HDFSDATA node object", "hdfsdata.node",
+ FT_UINT32, BASE_DEC,
+ NULL, 0x0,
+ NULL, HFILL }
+ },
+ /***
+ Var length
+ **/
+ { &hf_hdfsdata_clientlen,
+ { "HDFSDATA client id length", "hdfsdata.clientlen",
+ FT_UINT8, BASE_DEC,
+ NULL, 0x0,
+ NULL, HFILL }
+ },
+ { &hf_hdfsdata_clientid,
+ { "HDFSDATA client id", "hdfsdata.clientid",
+ FT_STRING, BASE_NONE,
+ NULL, 0x0,
+ NULL, HFILL }
+ },
+ { &hf_hdfsdata_end,
+ { "HDFSDATA end data request", "hdfsdata.end",
+ FT_UINT32, BASE_DEC,
+ NULL, 0x0,
+ NULL, HFILL }
+ },
+ /*************************************************
+ Access tokens
+ **************************************************/
+ { &hf_hdfsdata_tokenlen,
+ { "HDFSDATA access token length", "hdfsdata.tokenlen",
+ FT_UINT8, BASE_DEC,
+ NULL, 0x0,
+ NULL, HFILL }
+ },
+ { &hf_hdfsdata_tokenid,
+ { "HDFSDATA access token ID", "hdfsdata.tokenid",
+ FT_STRING, BASE_NONE,
+ NULL, 0x0,
+ NULL, HFILL }
+ },
+ { &hf_hdfsdata_tokenpassword,
+ { "HDFSDATA access token password", "hdfsdata.tokenpassword",
+ FT_STRING, BASE_NONE,
+ NULL, 0x0,
+ NULL, HFILL }
+ },
+ { &hf_hdfsdata_tokentype,
+ { "HDFSDATA access token type", "hdfsdata.tokentype",
+ FT_STRING, BASE_NONE,
+ NULL, 0x0,
+ NULL, HFILL }
+ },
+ { &hf_hdfsdata_tokenservice,
+ { "HDFSDATA access token service", "hdfsdata.tokenservice",
+ FT_STRING, BASE_NONE,
+ NULL, 0x0,
+ NULL, HFILL }
+ },
+ /***********************************************
+ Responses 1
+ ***********************************************/
+ { &hf_hdfsdata_status,
+ { "HDFSDATA status code", "hdfsdata.status",
+ FT_UINT16, BASE_DEC,
+ NULL, 0x0,
+ NULL, HFILL }
+ },
+ { &hf_hdfsdata_checksumtype,
+ { "HDFSDATA checksum type", "hdfsdata.checksumtype",
+ FT_UINT8, BASE_DEC,
+ NULL, 0x0,
+ NULL, HFILL }
+ },
+ { &hf_hdfsdata_chunksize,
+ { "HDFSDATA chunk size", "hdfsdata.chunksize",
+ FT_UINT32, BASE_DEC,
+ NULL, 0x0,
+ NULL, HFILL }
+ },
+ { &hf_hdfsdata_chunkoffset,
+ { "HDFSDATA chunk offset", "hdfsdata.chunkoffset",
+ FT_UINT64, BASE_DEC,
+ NULL, 0x0,
+ NULL, HFILL }
+ },
+ /***********************************************
+ Responses 2
+ ***********************************************/
+ { &hf_hdfsdata_datalength,
+ { "HDFSDATA length of data", "hdfsdata.datalength",
+ FT_UINT32, BASE_DEC,
+ NULL, 0x0,
+ NULL, HFILL }
+ },
+ { &hf_hdfsdata_inblockoffset,
+ { "HDFSDATA in block offset", "hdfsdata.inblockoffset",
+ FT_UINT64, BASE_DEC,
+ NULL, 0x0,
+ NULL, HFILL }
+ },
+ { &hf_hdfsdata_seqnum,
+ { "HDFSDATA sequence number", "hdfsdata.seqnum",
+ FT_UINT64, BASE_DEC,
+ NULL, 0x0,
+ NULL, HFILL }
+ },
+ { &hf_hdfsdata_last,
+ { "HDFSDATA last packet in block", "hdfsdata.last",
+ FT_INT8, BASE_DEC,
+ NULL, 0x0,
+ NULL, HFILL }
+ },
+ { &hf_hdfsdata_datalen,
+ { "HDFSDATA length of data", "hdfsdata.datalen",
+ FT_INT32, BASE_DEC,
+ NULL, 0x0,
+ NULL, HFILL }
+ },
+ { &hf_hdfsdata_crc32,
+ { "HDFSDATA crc32 checksum", "hdfsdata.crc32",
+ FT_INT32, BASE_DEC,
+ NULL, 0x0,
+ NULL, HFILL }
+ },
+ /***********************************************
+ Responses 3
+ ***********************************************/
+ { &hf_hdfsdata_rest,
+ { "HDFSDATA data", "hdfsdata.rest",
+ FT_STRING, BASE_NONE,
+ NULL, 0x0,
+ NULL, HFILL }
+ },
+ /***********************************************
+ Write Response 1
+ ***********************************************/
+ { &hf_hdfsdata_packetsize,
+ { "HDFSDATA packet size", "hdfsdata.packetsize",
+ FT_UINT32, BASE_DEC,
+ NULL, 0x0,
+ NULL, HFILL }
+ },
+ { &hf_hdfsdata_chunklength,
+ { "HDFSDATA chunk length", "hdfsdata.chunklength",
+ FT_UINT32, BASE_DEC,
+ NULL, 0x0,
+ NULL, HFILL }
+ },
+ { &hf_hdfsdata_crc64,
+ { "HDFSDATA crc64 checksum", "hdfsdata.crc64",
+ FT_INT64, BASE_DEC,
+ NULL, 0x0,
+ NULL, HFILL }
+ },
+ { &hf_hdfsdata_pipelinestatus,
+ { "HDFSDATA pipeline status", "hdfsdata.pipelinestatus",
+ FT_INT8, BASE_DEC,
+ NULL, 0x0,
+ NULL, HFILL }
+ },
+ };
+
+ /* Setup protocol subtree array */
+ static gint *ett[] = {
+ &ett_hdfsdata
+ };
+
+ proto_hdfsdata = proto_register_protocol ("HDFSDATA Protocol", "HDFSDATA", "hdfsdata");
+
+ proto_register_field_array(proto_hdfsdata, hf, array_length(hf));
+ proto_register_subtree_array(ett, array_length(ett));
+
+ hdfsdata_handle = register_dissector("hdfsdata", dissect_hdfsdata, proto_hdfsdata);
+}
+
+/* registers handoff */
+void
+proto_reg_handoff_hdfsdata(void)
+{
+ dissector_add_for_decode_as_with_preference("tcp.port", hdfsdata_handle);
+}
+/*
+ * Editor modelines
+ *
+ * Local Variables:
+ * c-basic-offset: 2
+ * tab-width: 8
+ * indent-tabs-mode: nil
+ * End:
+ *
+ * ex: set shiftwidth=2 tabstop=8 expandtab:
+ * :indentSize=2:tabSize=8:noTabs=true:
+ */
generated by cgit v1.2.3 (git 2.39.1) at 2024-11-18 08:54:41 +0000