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wireshark/epan/dissectors/packet-iwarp-ddp-rdmap.c

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/* packet-iwarp-ddp-rdmap.c
* Routines for Direct Data Placement (DDP) and
* Remote Direct Memory Access Protocol (RDMAP) dissection
* According to IETF RFC 5041 and RFC 5040
* Copyright 2008, Yves Geissbuehler <yves.geissbuehler@gmx.net>
* Copyright 2008, Philip Frey <frey.philip@gmail.com>
*
* Wireshark - Network traffic analyzer
* By Gerald Combs <gerald@wireshark.org>
* Copyright 1998 Gerald Combs
*
* SPDX-License-Identifier: GPL-2.0-or-later
*/
/* INCLUDES */
#include "config.h"
#include <epan/packet.h>
#include <epan/reassemble.h>
#include <epan/conversation.h>
#include <epan/proto_data.h>
#include "packet-iwarp-ddp-rdmap.h"
void proto_register_iwarp_ddp_rdmap(void);
/* DEFINES */
/* header field byte lengths */
#define DDP_CONTROL_FIELD_LEN 1
#define DDP_TAGGED_HEADER_LEN 14
#define DDP_TAGGED_RSVDULP_LEN 4
#define DDP_STAG_LEN 4
#define DDP_TO_LEN 8
#define DDP_UNTAGGED_HEADER_LEN 18
#define DDP_UNTAGGED_RSVDULP_LEN 5
#define DDP_QN_LEN 4
#define DDP_MSN_LEN 4
#define DDP_MO_LEN 4
#define DDP_BUFFER_MODEL_LEN 12
#define RDMA_CONTROL_FIELD_LEN 1
#define RDMA_RESERVED_FIELD_LEN 4
#define RDMA_INVAL_STAG_LEN 4
#define RDMA_SINKSTAG_LEN 4
#define RDMA_SINKTO_LEN 8
#define RDMA_RDMARDSZ_LEN 4
#define RDMA_SRCSTAG_LEN 4
#define RDMA_SRCTO_LEN 8
#define RDMA_DDP_SEGLEN_LEN 2
#define RDMA_TERMINATED_RDMA_LEN 28
/* RDMA messages */
#define RDMA_WRITE 0x00
#define RDMA_READ_REQUEST 0x01
#define RDMA_READ_RESPONSE 0x02
#define RDMA_SEND 0x03
#define RDMA_SEND_INVALIDATE 0x04
#define RDMA_SEND_SE 0x05
#define RDMA_SEND_SE_INVALIDATE 0x06
#define RDMA_TERMINATE 0x07
#define RDMA_ATOMIC_REQUEST 0x0A
#define RDMA_ATOMIC_RESPONSE 0x0B
/* bitmasks */
#define DDP_TAGGED_FLAG 0x80
#define DDP_LAST_FLAG 0x40
#define DDP_RSVD 0x3C
#define DDP_DV 0x03
#define RDMA_RV 0xC0
#define RDMA_RSV 0x30
#define RDMA_OPCODE 0x0F
#define IWARP_LAYER 0xF0
#define IWARP_ETYPE 0x0F
#define IWARP_HDRCT 0xE0
#define IWARP_HDRCT_M 0x80
#define IWARP_HDRCT_D 0x40
#define IWARP_HDRCT_R 0x20
#define IWARP_TERM_RES 0x1FFF
#define IWARP_LAYER_RDMA 0x00
#define IWARP_LAYER_DDP 0x01
#define IWARP_LAYER_LLP 0x02
#define IWARP_ETYPE_DDP_TAGGED 0x01
#define IWARP_ETYPE_DDP_UNTAGGED 0x02
/* GLOBALS */
static gint proto_iwarp_ddp_rdmap = -1;
static gint ett_iwarp_ddp_rdmap = -1;
/*
* DDP: initialize the protocol and registered fields
*/
static gint hf_iwarp_ddp = -1;
/* DDP Control Field */
static gint hf_iwarp_ddp_control_field = -1;
static gint hf_iwarp_ddp_t_flag = -1;
static gint hf_iwarp_ddp_l_flag = -1;
static gint hf_iwarp_ddp_rsvd = -1;
static gint hf_iwarp_ddp_dv = -1;
/* DDP rsvdULP[8:39] field */
static gint hf_iwarp_ddp_rsvdulp = -1;
/* Tagged Buffer Model Header */
static gint hf_iwarp_ddp_tagged_header = -1;
static gint hf_iwarp_ddp_stag = -1;
static gint hf_iwarp_ddp_to = -1;
/* Untagged Buffer Model Header */
static gint hf_iwarp_ddp_untagged_header = -1;
static gint hf_iwarp_ddp_qn= -1;
static gint hf_iwarp_ddp_msn = -1;
static gint hf_iwarp_ddp_mo = -1;
/* initialize the subtree pointers */
static gint ett_iwarp_ddp = -1;
static gint ett_iwarp_ddp_control_field = -1;
static gint ett_iwarp_ddp_tagged_header = -1;
static gint ett_iwarp_ddp_untagged_header = -1;
/*
* RDMAP: initialize the protocol and registered fields
*/
static gint hf_iwarp_rdma = -1;
/* Control Field */
static gint hf_iwarp_rdma_control_field = -1;
static gint hf_iwarp_rdma_version = -1;
static gint hf_iwarp_rdma_rsvd = -1;
static gint hf_iwarp_rdma_opcode = -1;
/* DDP rsvdULP[8:39] RDMA interpretations */
static gint hf_iwarp_rdma_reserved = -1;
static gint hf_iwarp_rdma_inval_stag = -1;
/* Read Request Header */
static gint hf_iwarp_rdma_rr_header = -1;
static gint hf_iwarp_rdma_sinkstag = -1;
static gint hf_iwarp_rdma_sinkto = -1;
static gint hf_iwarp_rdma_rdmardsz = -1;
static gint hf_iwarp_rdma_srcstag = -1;
static gint hf_iwarp_rdma_srcto = -1;
/* Terminate Header */
static gint hf_iwarp_rdma_terminate_header = -1;
static gint hf_iwarp_rdma_term_ctrl = -1;
static gint hf_iwarp_rdma_term_layer = -1;
static gint hf_iwarp_rdma_term_etype = -1;
static gint hf_iwarp_rdma_term_etype_rdma = -1;
static gint hf_iwarp_rdma_term_etype_ddp = -1;
static gint hf_iwarp_rdma_term_etype_llp = -1;
static gint hf_iwarp_rdma_term_errcode = -1;
static gint hf_iwarp_rdma_term_errcode_rdma = -1;
static gint hf_iwarp_rdma_term_errcode_ddp_untagged = -1;
static gint hf_iwarp_rdma_term_errcode_ddp_tagged = -1;
static gint hf_iwarp_rdma_term_errcode_llp = -1;
static gint hf_iwarp_rdma_term_hdrct = -1;
static gint hf_iwarp_rdma_term_hdrct_m = -1;
static gint hf_iwarp_rdma_term_hdrct_d = -1;
static gint hf_iwarp_rdma_term_hdrct_r = -1;
static gint hf_iwarp_rdma_term_rsvd = -1;
static gint hf_iwarp_rdma_term_ddp_seg_len = -1;
static gint hf_iwarp_rdma_term_ddp_h = -1;
static gint hf_iwarp_rdma_term_rdma_h = -1;
/* Atomic */
static gint hf_iwarp_rdma_atomic_reserved = -1;
static gint hf_iwarp_rdma_atomic_opcode = -1;
static gint hf_iwarp_rdma_atomic_request_identifier = -1;
static gint hf_iwarp_rdma_atomic_remote_stag = -1;
static gint hf_iwarp_rdma_atomic_remote_tagged_offset = -1;
static gint hf_iwarp_rdma_atomic_add_data = -1;
static gint hf_iwarp_rdma_atomic_add_mask = -1;
static gint hf_iwarp_rdma_atomic_swap_data = -1;
static gint hf_iwarp_rdma_atomic_swap_mask = -1;
static gint hf_iwarp_rdma_atomic_compare_data = -1;
static gint hf_iwarp_rdma_atomic_compare_mask = -1;
static gint hf_iwarp_rdma_atomic_original_request_identifier = -1;
static gint hf_iwarp_rdma_atomic_original_remote_data_value = -1;
static gint hf_iwarp_rdma_send_fragments = -1;
static gint hf_iwarp_rdma_send_fragment = -1;
static gint hf_iwarp_rdma_send_fragment_overlap = -1;
static gint hf_iwarp_rdma_send_fragment_overlap_conflict = -1;
static gint hf_iwarp_rdma_send_fragment_multiple_tails = -1;
static gint hf_iwarp_rdma_send_fragment_too_long_fragment = -1;
static gint hf_iwarp_rdma_send_fragment_error = -1;
static gint hf_iwarp_rdma_send_fragment_count = -1;
static gint hf_iwarp_rdma_send_reassembled_in = -1;
static gint hf_iwarp_rdma_send_reassembled_length = -1;
static gint hf_iwarp_rdma_send_reassembled_data = -1;
/* initialize the subtree pointers */
static gint ett_iwarp_rdma = -1;
static gint ett_iwarp_rdma_control_field = -1;
static gint ett_iwarp_rdma_rr_header = -1;
static gint ett_iwarp_rdma_terminate_header = -1;
static gint ett_iwarp_rdma_term_ctrl = -1;
static gint ett_iwarp_rdma_term_hdrct = -1;
static gint ett_iwarp_rdma_send_fragment = -1;
static gint ett_iwarp_rdma_send_fragments = -1;
static const fragment_items iwarp_rdma_send_frag_items = {
&ett_iwarp_rdma_send_fragment,
&ett_iwarp_rdma_send_fragments,
&hf_iwarp_rdma_send_fragments,
&hf_iwarp_rdma_send_fragment,
&hf_iwarp_rdma_send_fragment_overlap,
&hf_iwarp_rdma_send_fragment_overlap_conflict,
&hf_iwarp_rdma_send_fragment_multiple_tails,
&hf_iwarp_rdma_send_fragment_too_long_fragment,
&hf_iwarp_rdma_send_fragment_error,
&hf_iwarp_rdma_send_fragment_count,
&hf_iwarp_rdma_send_reassembled_in,
&hf_iwarp_rdma_send_reassembled_length,
&hf_iwarp_rdma_send_reassembled_data,
"iWarp RDMA Send fragments"
};
static const value_string rdmap_messages[] = {
{ RDMA_WRITE, "Write" },
{ RDMA_READ_REQUEST, "Read Request" },
{ RDMA_READ_RESPONSE, "Read Response" },
{ RDMA_SEND, "Send" },
{ RDMA_SEND_INVALIDATE, "Send with Invalidate" },
{ RDMA_SEND_SE, "Send with SE" },
{ RDMA_SEND_SE_INVALIDATE, "Send with SE and Invalidate" },
{ RDMA_TERMINATE, "Terminate" },
{ RDMA_ATOMIC_REQUEST, "Atomic Request" },
{ RDMA_ATOMIC_RESPONSE, "Atomic Response" },
{ 0, NULL }
};
static const value_string layer_names[] = {
{ IWARP_LAYER_RDMA, "RDMA" },
{ IWARP_LAYER_DDP, "DDP" },
{ IWARP_LAYER_LLP, "LLP" },
{ 0, NULL }
};
static const value_string rdma_etype_names[] = {
{ 0x00, "Local Catastrophic Error" },
{ 0x01, "Remote Protection Error" },
{ 0x02, "Remote Operation Error" },
{ 0, NULL }
};
static const value_string rdma_errcode_names[] = {
{ 0x00, "Invalid STag" },
{ 0x01, "Base or bounds violation" },
{ 0x02, "Access rights violation" },
{ 0x03, "STag not associated with RDMAP Stream" },
{ 0x04, "TO wrap" },
{ 0x05, "Invalid RDMAP version" },
{ 0x06, "Unexpected OpCode" },
{ 0x07, "Catastrophic error, localized to RDMAP Stream" },
{ 0x08, "Catastrophic error, global" },
{ 0x09, "STag cannot be Invalidated" },
{ 0xFF, "Unspecific Error" },
{ 0, NULL }
};
static const value_string ddp_etype_names[] = {
{ 0x00, "Local Catastrophic Error" },
{ 0x01, "Tagged Buffer Error" },
{ 0x02, "Untagged Buffer Error" },
{ 0x03, "Reserved for the use by the LLP" },
{ 0, NULL }
};
static const value_string ddp_errcode_tagged_names[] = {
{ 0x00, "Invalid STag" },
{ 0x01, "Base or bounds violation" },
{ 0x02, "STag not associated with DDP Stream" },
{ 0x03, "TO wrap" },
{ 0x04, "Invalid DDP version" },
{ 0, NULL }
};
static const value_string ddp_errcode_untagged_names[] = {
{ 0x01, "Invalid QN" },
{ 0x02, "Invalid MSN - no buffer available" },
{ 0x03, "Invalid MSN - MSN range is not valid" },
{ 0x04, "Invalid MO" },
{ 0x05, "DDP Message too long for available buffer" },
{ 0x06, "Invalid DDP version" },
{ 0, NULL }
};
static const value_string mpa_etype_names[] = {
{ 0x00, "MPA Error" },
{ 0, NULL }
};
static const value_string mpa_errcode_names[] = {
{ 0x01, "TCP connection closed, terminated or lost" },
{ 0x02, "MPA CRC Error" },
{ 0x03, "MPA Marker and ULPDU Length field mismatch" },
{ 0x04, "Invalid MPA Request Frame or MPA Response Frame" },
{ 0x05, "Local Catastrophic Error" },
{ 0x06, "Insufficient IRD Resources" },
{ 0x07, "No Matching RTR Option" },
{ 0, NULL }
};
static const value_string rdma_atomic_opcode_names[] = {
{ 0x00, "FetchAdd" },
{ 0x02, "CmpSwap" },
{ 0, NULL }
};
static heur_dissector_list_t rdmap_heur_subdissector_list;
static gboolean iwarp_rdma_send_reassemble = TRUE;
static reassembly_table iwarp_rdma_send_reassembly_table;
static void
dissect_rdmap_payload(tvbuff_t *tvb, packet_info *pinfo,
proto_tree *tree, rdmap_info_t *info)
{
gboolean save_fragmented = pinfo->fragmented;
int save_visited = pinfo->fd->visited;
conversation_t *conversation = NULL;
fragment_head *fd_head = NULL;
gboolean more_frags = FALSE;
gboolean fd_head_not_cached = FALSE;
heur_dtbl_entry_t *hdtbl_entry;
switch (info->opcode) {
case RDMA_SEND:
case RDMA_SEND_INVALIDATE:
case RDMA_SEND_SE:
case RDMA_SEND_SE_INVALIDATE:
if (iwarp_rdma_send_reassemble) {
break;
}
/* FALLTHRU */
default:
goto dissect_payload;
}
conversation = find_or_create_conversation(pinfo);
if (!info->last_flag) {
more_frags = TRUE;
}
fd_head = (fragment_head *)p_get_proto_data(wmem_file_scope(), pinfo, proto_iwarp_ddp_rdmap, 0);
if (fd_head == NULL) {
fd_head_not_cached = TRUE;
pinfo->fd->visited = 0;
fd_head = fragment_add_seq_next(&iwarp_rdma_send_reassembly_table,
tvb, 0, pinfo,
conversation->conv_index,
NULL, tvb_captured_length(tvb),
more_frags);
}
if (fd_head == NULL) {
/*
* We really want the fd_head and pass it to
* process_reassembled_data()
*
* So that individual fragments gets the
* reassembled in field.
*/
fd_head = fragment_get_reassembled_id(&iwarp_rdma_send_reassembly_table,
pinfo,
conversation->conv_index);
}
if (fd_head == NULL) {
/*
* we need more data...
*/
goto done;
}
if (fd_head_not_cached) {
p_add_proto_data(wmem_file_scope(), pinfo,
proto_iwarp_ddp_rdmap, 0, fd_head);
}
tvb = process_reassembled_data(tvb, 0, pinfo,
"Reassembled SMB Direct",
fd_head,
&iwarp_rdma_send_frag_items,
NULL, /* update_col_info*/
tree);
if (tvb == NULL) {
/*
* we need more data...
*/
goto done;
}
dissect_payload:
pinfo->fragmented = FALSE;
if (!dissector_try_heuristic(rdmap_heur_subdissector_list,
tvb, pinfo, tree, &hdtbl_entry, info)) {
call_data_dissector(tvb, pinfo, tree);
}
done:
pinfo->fragmented = save_fragmented;
pinfo->fd->visited = save_visited;
return;
}
/* update packet list pane in the GUI */
static void
ddp_rdma_packetlist(packet_info *pinfo, gboolean ddp_last_flag,
guint8 rdma_msg_opcode)
{
const gchar *ddp_fragment_state;
col_set_str(pinfo->cinfo, COL_PROTOCOL, "DDP/RDMA");
if (ddp_last_flag) {
ddp_fragment_state = "[last DDP segment]";
} else {
ddp_fragment_state = "[more DDP segments]";
}
col_add_fstr(pinfo->cinfo, COL_INFO, "%d > %d %s %s", pinfo->srcport,
pinfo->destport, val_to_str(rdma_msg_opcode, rdmap_messages,
"Unknown %d"), ddp_fragment_state);
}
/* dissects RDMA Read Request and Terminate message header */
static int
dissect_iwarp_rdmap(tvbuff_t *tvb, packet_info *pinfo, proto_tree *rdma_tree, guint32 offset,
rdmap_info_t *info)
{
proto_tree *rdma_header_tree = NULL;
proto_tree *term_ctrl_field_tree = NULL;
proto_tree *header_ctrl_field_tree = NULL;
proto_item *rdma_header_subitem = NULL;
proto_item *term_ctrl_field_subitem = NULL;
proto_item *header_ctrl_field_subitem = NULL;
guint8 layer, etype, hdrct;
if (info->opcode == RDMA_READ_REQUEST) {
info->read_request = wmem_new(pinfo->pool, rdmap_request_t);
rdma_header_subitem = proto_tree_add_item(rdma_tree,
hf_iwarp_rdma_rr_header, tvb, offset, -1, ENC_NA);
rdma_header_tree = proto_item_add_subtree(rdma_header_subitem,
ett_iwarp_rdma);
proto_tree_add_item_ret_uint(rdma_header_tree, hf_iwarp_rdma_sinkstag, tvb,
offset, RDMA_SINKSTAG_LEN, ENC_BIG_ENDIAN,
&info->read_request->sink_stag);
offset += RDMA_SINKSTAG_LEN;
proto_tree_add_item_ret_uint64(rdma_header_tree, hf_iwarp_rdma_sinkto, tvb,
offset, RDMA_SINKTO_LEN, ENC_BIG_ENDIAN,
&info->read_request->sink_toffset);
offset += RDMA_SINKTO_LEN;
proto_tree_add_item_ret_uint(rdma_header_tree,
hf_iwarp_rdma_rdmardsz, tvb, offset,
RDMA_RDMARDSZ_LEN, ENC_BIG_ENDIAN,
&info->read_request->message_size);
offset += RDMA_RDMARDSZ_LEN;
proto_tree_add_item_ret_uint(rdma_header_tree, hf_iwarp_rdma_srcstag, tvb,
offset, RDMA_SRCSTAG_LEN, ENC_BIG_ENDIAN,
&info->read_request->source_stag);
offset += RDMA_SRCSTAG_LEN;
proto_tree_add_item_ret_uint64(rdma_header_tree, hf_iwarp_rdma_srcto, tvb,
offset, RDMA_SRCTO_LEN, ENC_BIG_ENDIAN,
&info->read_request->source_toffset);
offset += RDMA_SRCTO_LEN;
}
if (rdma_tree) {
if (info->opcode == RDMA_TERMINATE) {
rdma_header_subitem = proto_tree_add_item(rdma_tree,
hf_iwarp_rdma_terminate_header, tvb, offset, -1, ENC_NA);
rdma_header_tree = proto_item_add_subtree(rdma_header_subitem,
ett_iwarp_rdma);
/* Terminate Control Field */
layer = tvb_get_guint8(tvb, offset) & IWARP_LAYER;
etype = tvb_get_guint8(tvb, offset) & IWARP_ETYPE;
term_ctrl_field_subitem = proto_tree_add_item(rdma_header_tree,
hf_iwarp_rdma_term_ctrl, tvb, offset, 3, ENC_NA);
term_ctrl_field_tree = proto_item_add_subtree(
term_ctrl_field_subitem, ett_iwarp_rdma);
proto_tree_add_item(term_ctrl_field_tree, hf_iwarp_rdma_term_layer,
tvb, offset, 1, ENC_BIG_ENDIAN);
switch (layer >> 4) {
case IWARP_LAYER_RDMA:
proto_tree_add_item(term_ctrl_field_tree,
hf_iwarp_rdma_term_etype_rdma, tvb, offset, 1,
ENC_BIG_ENDIAN);
offset += 1;
proto_tree_add_item(term_ctrl_field_tree,
etype ? hf_iwarp_rdma_term_errcode_rdma : hf_iwarp_rdma_term_errcode,
tvb, offset, 1, ENC_BIG_ENDIAN);
offset += 1;
break;
case IWARP_LAYER_DDP:
proto_tree_add_item(term_ctrl_field_tree,
hf_iwarp_rdma_term_etype_ddp, tvb, offset, 1,
ENC_BIG_ENDIAN);
offset += 1;
switch (etype) {
case IWARP_ETYPE_DDP_TAGGED:
proto_tree_add_item(term_ctrl_field_tree,
hf_iwarp_rdma_term_errcode_ddp_tagged, tvb,
offset, 1, ENC_BIG_ENDIAN);
offset += 1;
break;
case IWARP_ETYPE_DDP_UNTAGGED:
proto_tree_add_item(term_ctrl_field_tree,
hf_iwarp_rdma_term_errcode_ddp_untagged, tvb,
offset, 1, ENC_BIG_ENDIAN);
offset += 1;
break;
default:
proto_tree_add_item(term_ctrl_field_tree,
hf_iwarp_rdma_term_errcode, tvb, offset, 1,
ENC_BIG_ENDIAN);
offset += 1;
break;
}
break;
case IWARP_LAYER_LLP:
proto_tree_add_item(term_ctrl_field_tree,
hf_iwarp_rdma_term_etype_llp, tvb, offset, 1,
ENC_BIG_ENDIAN);
offset += 1;
proto_tree_add_item(term_ctrl_field_tree,
etype ? hf_iwarp_rdma_term_errcode : hf_iwarp_rdma_term_errcode_llp,
tvb, offset, 1, ENC_BIG_ENDIAN);
offset += 1;
break;
default:
proto_tree_add_item(term_ctrl_field_tree,
hf_iwarp_rdma_term_etype, tvb, offset, 1, ENC_BIG_ENDIAN);
offset += 1;
proto_tree_add_item(term_ctrl_field_tree,
hf_iwarp_rdma_term_errcode, tvb, offset, 1, ENC_BIG_ENDIAN);
offset += 1;
break;
}
/* header control bits (hdctr), part of Terminate Control Field */
header_ctrl_field_subitem = proto_tree_add_item(
term_ctrl_field_tree, hf_iwarp_rdma_term_hdrct, tvb,
offset, 1, ENC_NA);
header_ctrl_field_tree = proto_item_add_subtree(
header_ctrl_field_subitem, ett_iwarp_rdma);
hdrct = tvb_get_guint8(tvb, offset) & IWARP_HDRCT;
proto_tree_add_item(header_ctrl_field_tree,
hf_iwarp_rdma_term_hdrct_m, tvb, offset, 1, ENC_BIG_ENDIAN);
proto_tree_add_item(header_ctrl_field_tree,
hf_iwarp_rdma_term_hdrct_d, tvb, offset, 1, ENC_BIG_ENDIAN);
proto_tree_add_item(header_ctrl_field_tree,
hf_iwarp_rdma_term_hdrct_r, tvb, offset, 1, ENC_BIG_ENDIAN);
proto_tree_add_item(rdma_header_tree, hf_iwarp_rdma_term_rsvd, tvb,
offset, 2, ENC_BIG_ENDIAN);
offset += 2;
if (hdrct & IWARP_HDRCT_D) {
/* DDP Segment Length (if any) */
proto_tree_add_item(rdma_header_tree,
hf_iwarp_rdma_term_ddp_seg_len, tvb,
offset, RDMA_DDP_SEGLEN_LEN, ENC_NA);
offset += RDMA_DDP_SEGLEN_LEN;
/* Terminated DDP Header (if any), tagged or untagged */
if (etype == IWARP_ETYPE_DDP_TAGGED) {
proto_tree_add_item(rdma_header_tree,
hf_iwarp_rdma_term_ddp_h, tvb,
offset, DDP_TAGGED_HEADER_LEN, ENC_NA);
offset += DDP_TAGGED_HEADER_LEN;
} else {
proto_tree_add_item(rdma_header_tree,
hf_iwarp_rdma_term_ddp_h, tvb,
offset, DDP_UNTAGGED_HEADER_LEN, ENC_NA);
offset += DDP_UNTAGGED_HEADER_LEN;
}
}
/* Terminated RDMA Header (if any) */
if (hdrct & IWARP_HDRCT_R) {
proto_tree_add_item(rdma_header_tree, hf_iwarp_rdma_term_rdma_h,
tvb, offset, RDMA_TERMINATED_RDMA_LEN, ENC_NA);
}
}
}
return offset;
}
/* dissects RDMA Atomic Request and Terminate message header */
static int
dissect_iwarp_atomic(tvbuff_t *tvb, proto_tree *atomic_tree, guint32 offset,
guint8 rdma_msg_opcode)
{
switch(rdma_msg_opcode){
case RDMA_ATOMIC_REQUEST:{
guint32 atomic_opcode;
proto_tree_add_item(atomic_tree, hf_iwarp_rdma_atomic_reserved, tvb, offset, 4, ENC_BIG_ENDIAN);
proto_tree_add_item(atomic_tree, hf_iwarp_rdma_atomic_opcode, tvb, offset, 4, ENC_BIG_ENDIAN);
atomic_opcode = tvb_get_ntohl(tvb, offset);
offset += 4;
proto_tree_add_item(atomic_tree, hf_iwarp_rdma_atomic_request_identifier, tvb, offset, 4, ENC_BIG_ENDIAN);
offset += 4;
proto_tree_add_item(atomic_tree, hf_iwarp_rdma_atomic_remote_stag, tvb, offset, 4, ENC_BIG_ENDIAN);
offset += 4;
proto_tree_add_item(atomic_tree, hf_iwarp_rdma_atomic_remote_tagged_offset, tvb, offset, 8, ENC_BIG_ENDIAN);
offset += 8;
switch(atomic_opcode){
case 0: /* Add */
proto_tree_add_item(atomic_tree, hf_iwarp_rdma_atomic_add_data, tvb, offset, 8, ENC_BIG_ENDIAN);
offset += 8;
proto_tree_add_item(atomic_tree, hf_iwarp_rdma_atomic_add_mask, tvb, offset, 8, ENC_BIG_ENDIAN);
offset += 8;
break;
case 2: /* Swap */
proto_tree_add_item(atomic_tree, hf_iwarp_rdma_atomic_swap_data, tvb, offset, 8, ENC_BIG_ENDIAN);
offset += 8;
proto_tree_add_item(atomic_tree, hf_iwarp_rdma_atomic_swap_mask, tvb, offset, 8, ENC_BIG_ENDIAN);
offset += 8;
break;
}
proto_tree_add_item(atomic_tree, hf_iwarp_rdma_atomic_compare_data, tvb, offset, 8, ENC_BIG_ENDIAN);
offset += 8;
proto_tree_add_item(atomic_tree, hf_iwarp_rdma_atomic_compare_mask, tvb, offset, 8, ENC_BIG_ENDIAN);
offset += 8;
}
break;
case RDMA_ATOMIC_RESPONSE:
proto_tree_add_item(atomic_tree, hf_iwarp_rdma_atomic_original_request_identifier, tvb, offset, 4, ENC_BIG_ENDIAN);
offset += 4;
proto_tree_add_item(atomic_tree, hf_iwarp_rdma_atomic_original_remote_data_value, tvb, offset, 8, ENC_BIG_ENDIAN);
offset += 4;
break;
}
return offset;
}
/*
* Main dissection routine which dissects a DDP segment and interprets the
* header field rsvdULP according to RDMAP.
*/
static int
dissect_iwarp_ddp_rdmap(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, void* data _U_)
{
proto_tree *ddp_rdma_tree = NULL;
proto_tree *ddp_tree = NULL;
proto_tree *ddp_ctrl_field_tree = NULL;
proto_tree *ddp_buffer_model_tree = NULL;
proto_tree *rdma_tree = NULL;
proto_tree *rdma_ctrl_field_tree = NULL;
proto_item *ddp_rdma_item = NULL;
proto_item *ddp_item = NULL;
proto_item *ddp_ctrl_field_item = NULL;
proto_item *ddp_buffer_model_item = NULL;
proto_item *rdma_item = NULL;
proto_item *rdma_ctrl_field_item = NULL;
tvbuff_t *next_tvb = NULL;
guint8 ddp_ctrl_field, rdma_ctrl_field;
rdmap_info_t info = { 0, 0, 0, {{0, 0}}, NULL };
guint32 header_end;
guint32 offset = 0;
ddp_ctrl_field = tvb_get_guint8(tvb, 0);
rdma_ctrl_field = tvb_get_guint8(tvb, 1);
info.opcode = rdma_ctrl_field & RDMA_OPCODE;
info.is_tagged = (ddp_ctrl_field & DDP_TAGGED_FLAG) ? TRUE : FALSE;
info.last_flag = (ddp_ctrl_field & DDP_LAST_FLAG) ? TRUE : FALSE;
ddp_rdma_packetlist(pinfo, info.last_flag, info.opcode);
offset = 0;
/* determine header length */
if (info.is_tagged) {
header_end = DDP_TAGGED_HEADER_LEN;
} else {
header_end = DDP_UNTAGGED_HEADER_LEN;
}
if (info.opcode == RDMA_READ_REQUEST
|| info.opcode == RDMA_TERMINATE) {
header_end = -1;
}
/* DDP/RDMA protocol tree */
ddp_rdma_item = proto_tree_add_item(tree, proto_iwarp_ddp_rdmap,
tvb, offset, header_end, ENC_NA);
ddp_rdma_tree = proto_item_add_subtree(ddp_rdma_item,
ett_iwarp_ddp_rdmap);
/* DDP protocol header subtree */
ddp_item = proto_tree_add_item(ddp_rdma_tree, hf_iwarp_ddp, tvb,
offset, header_end, ENC_NA);
ddp_tree = proto_item_add_subtree(ddp_item, ett_iwarp_ddp);
/* DDP control field */
ddp_ctrl_field_item = proto_tree_add_item(ddp_tree,
hf_iwarp_ddp_control_field, tvb, offset,
DDP_CONTROL_FIELD_LEN, ENC_NA);
ddp_ctrl_field_tree = proto_item_add_subtree(ddp_ctrl_field_item,
ett_iwarp_ddp);
proto_tree_add_item(ddp_ctrl_field_tree, hf_iwarp_ddp_t_flag, tvb,
offset, DDP_CONTROL_FIELD_LEN, ENC_BIG_ENDIAN);
proto_tree_add_item(ddp_ctrl_field_tree, hf_iwarp_ddp_l_flag, tvb,
offset, DDP_CONTROL_FIELD_LEN, ENC_BIG_ENDIAN);
proto_tree_add_item(ddp_ctrl_field_tree, hf_iwarp_ddp_rsvd, tvb,
offset, DDP_CONTROL_FIELD_LEN, ENC_BIG_ENDIAN);
proto_tree_add_item(ddp_ctrl_field_tree, hf_iwarp_ddp_dv, tvb, offset,
DDP_CONTROL_FIELD_LEN, ENC_BIG_ENDIAN);
offset += DDP_CONTROL_FIELD_LEN;
/* DDP header field RsvdULP */
if (!info.is_tagged) {
proto_tree_add_item(ddp_tree, hf_iwarp_ddp_rsvdulp, tvb,
offset, DDP_UNTAGGED_RSVDULP_LEN, ENC_NA);
}
/* RDMA protocol header subtree */
if (info.is_tagged) {
header_end = RDMA_CONTROL_FIELD_LEN;
} else {
header_end = RDMA_CONTROL_FIELD_LEN + RDMA_RESERVED_FIELD_LEN;
}
rdma_item = proto_tree_add_item(ddp_rdma_tree, hf_iwarp_rdma, tvb,
offset, header_end, ENC_NA);
rdma_tree = proto_item_add_subtree(rdma_item, ett_iwarp_rdma);
/* RDMA Control Field */
rdma_ctrl_field_item = proto_tree_add_item(rdma_tree,
hf_iwarp_rdma_control_field, tvb, offset,
RDMA_CONTROL_FIELD_LEN, ENC_NA);
rdma_ctrl_field_tree = proto_item_add_subtree(rdma_ctrl_field_item,
ett_iwarp_rdma);
proto_tree_add_item(rdma_ctrl_field_tree, hf_iwarp_rdma_version, tvb,
offset, RDMA_CONTROL_FIELD_LEN, ENC_BIG_ENDIAN);
proto_tree_add_item(rdma_ctrl_field_tree, hf_iwarp_rdma_rsvd, tvb,
offset, RDMA_CONTROL_FIELD_LEN, ENC_BIG_ENDIAN);
proto_tree_add_item(rdma_ctrl_field_tree, hf_iwarp_rdma_opcode, tvb,
offset, RDMA_CONTROL_FIELD_LEN, ENC_BIG_ENDIAN);
offset += RDMA_CONTROL_FIELD_LEN;
/* dissection of DDP rsvdULP[8:39] with respect to RDMAP */
if (info.opcode == RDMA_READ_REQUEST
|| info.opcode == RDMA_SEND
|| info.opcode == RDMA_SEND_SE
|| info.opcode == RDMA_TERMINATE) {
proto_tree_add_item(rdma_tree, hf_iwarp_rdma_reserved,
tvb, offset, RDMA_RESERVED_FIELD_LEN, ENC_NA);
}
if (info.opcode == RDMA_SEND_INVALIDATE
|| info.opcode == RDMA_SEND_SE_INVALIDATE) {
proto_tree_add_item(rdma_tree, hf_iwarp_rdma_inval_stag,
tvb, offset, RDMA_INVAL_STAG_LEN, ENC_BIG_ENDIAN);
}
if (!info.is_tagged) {
offset += RDMA_RESERVED_FIELD_LEN;
}
/* DDP Buffer Model dissection */
if (info.is_tagged) {
/* Tagged Buffer Model Case */
ddp_buffer_model_item = proto_tree_add_item(ddp_tree,
hf_iwarp_ddp_tagged_header, tvb, offset,
DDP_BUFFER_MODEL_LEN, ENC_NA);
ddp_buffer_model_tree = proto_item_add_subtree(ddp_buffer_model_item,
ett_iwarp_ddp);
proto_tree_add_item_ret_uint(ddp_buffer_model_tree, hf_iwarp_ddp_stag, tvb,
offset, DDP_STAG_LEN, ENC_BIG_ENDIAN, &info.steering_tag);
offset += DDP_STAG_LEN;
proto_tree_add_item_ret_uint64(ddp_buffer_model_tree, hf_iwarp_ddp_to, tvb,
offset, DDP_TO_LEN, ENC_BIG_ENDIAN, &info.tagged_offset);
offset += DDP_TO_LEN;
if( info.opcode == RDMA_READ_RESPONSE
|| info.opcode == RDMA_WRITE) {
/* display the payload */
next_tvb = tvb_new_subset_remaining(tvb, DDP_TAGGED_HEADER_LEN);
dissect_rdmap_payload(next_tvb, pinfo, tree, &info);
}
} else {
/* Untagged Buffer Model Case */
ddp_buffer_model_item = proto_tree_add_item(ddp_tree,
hf_iwarp_ddp_untagged_header, tvb, offset,
DDP_BUFFER_MODEL_LEN, ENC_NA);
ddp_buffer_model_tree = proto_item_add_subtree(ddp_buffer_model_item,
ett_iwarp_ddp);
proto_tree_add_item_ret_uint(ddp_buffer_model_tree, hf_iwarp_ddp_qn, tvb,
offset, DDP_QN_LEN, ENC_BIG_ENDIAN, &info.queue_number);
offset += DDP_QN_LEN;
proto_tree_add_item_ret_uint(ddp_buffer_model_tree, hf_iwarp_ddp_msn, tvb,
offset, DDP_MSN_LEN, ENC_BIG_ENDIAN, &info.message_seq_num);
offset += DDP_MSN_LEN;
proto_tree_add_item_ret_uint(ddp_buffer_model_tree, hf_iwarp_ddp_mo, tvb,
offset, DDP_MO_LEN, ENC_BIG_ENDIAN, &info.message_offset);
offset += DDP_MO_LEN;
if (info.opcode == RDMA_SEND
|| info.opcode == RDMA_SEND_INVALIDATE
|| info.opcode == RDMA_SEND_SE
|| info.opcode == RDMA_SEND_SE_INVALIDATE) {
/* display the payload */
next_tvb = tvb_new_subset_remaining(tvb, DDP_UNTAGGED_HEADER_LEN);
dissect_rdmap_payload(next_tvb, pinfo, tree, &info);
}
}
/* do further dissection for RDMA messages RDMA Read Request & Terminate */
if (info.opcode == RDMA_READ_REQUEST) {
offset = dissect_iwarp_rdmap(tvb, pinfo, rdma_tree, offset, &info);
/* Call upper layer dissector for message reassembly */
next_tvb = tvb_new_subset_remaining(tvb, offset);
dissect_rdmap_payload(next_tvb, pinfo, tree, &info);
} else if (info.opcode == RDMA_TERMINATE) {
dissect_iwarp_rdmap(tvb, pinfo, rdma_tree, offset, &info);
}
/* do further dissection for RDMA messages RDMA Atomic Request & Response */
if (info.opcode == RDMA_ATOMIC_REQUEST
|| info.opcode == RDMA_ATOMIC_RESPONSE) {
dissect_iwarp_atomic(tvb, rdma_tree, offset, info.opcode);
}
return tvb_captured_length(tvb);
}
/* register the protocol with Wireshark */
void
proto_register_iwarp_ddp_rdmap(void)
{
/* setup list of header fields */
static hf_register_info hf[] = {
/* DDP */
{ &hf_iwarp_ddp, {
"DDP header", "iwarp_ddp",
FT_NONE, BASE_NONE, NULL, 0x0,
NULL, HFILL } },
{ &hf_iwarp_ddp_control_field, {
"DDP control field", "iwarp_ddp.control_field",
FT_NONE, BASE_NONE, NULL, 0x0,
NULL, HFILL } },
{ &hf_iwarp_ddp_tagged_header, {
"Tagged buffer model", "iwarp_ddp.tagged",
FT_NONE, BASE_NONE, NULL, 0x0,
"DDP Tagged Buffer Model Header", HFILL} },
{ &hf_iwarp_ddp_untagged_header, {
"Untagged buffer model", "iwarp_ddp.untagged",
FT_NONE, BASE_NONE, NULL, 0x0,
"DDP Untagged Buffer Model Header", HFILL} },
{ &hf_iwarp_ddp_t_flag, {
"Tagged flag", "iwarp_ddp.tagged_flag",
FT_BOOLEAN, 8, NULL, DDP_TAGGED_FLAG,
NULL, HFILL} },
{ &hf_iwarp_ddp_l_flag, {
"Last flag", "iwarp_ddp.last_flag",
FT_BOOLEAN, 8, NULL, DDP_LAST_FLAG,
NULL, HFILL} },
{ &hf_iwarp_ddp_rsvd, {
"Reserved", "iwarp_ddp.rsvd",
FT_UINT8, BASE_HEX, NULL, DDP_RSVD,
NULL, HFILL} },
{ &hf_iwarp_ddp_dv, {
"DDP protocol version", "iwarp_ddp.dv",
FT_UINT8, BASE_DEC, NULL, DDP_DV,
NULL, HFILL} },
{ &hf_iwarp_ddp_rsvdulp, {
"Reserved for use by the ULP", "iwarp_ddp.rsvdulp",
FT_BYTES, BASE_NONE, NULL, 0x0,
NULL, HFILL} },
{ &hf_iwarp_ddp_stag, {
"(Data Sink) Steering Tag", "iwarp_ddp.stag",
FT_UINT32, BASE_HEX, NULL, 0x0,
NULL, HFILL} },
{ &hf_iwarp_ddp_to, {
"(Data Sink) Tagged offset", "iwarp_ddp.tagged_offset",
FT_UINT64, BASE_HEX, NULL, 0x0,
NULL, HFILL} },
{ &hf_iwarp_ddp_qn, {
"Queue number", "iwarp_ddp.qn",
FT_UINT32, BASE_DEC, NULL, 0x0,
NULL, HFILL} },
{ &hf_iwarp_ddp_msn, {
"Message sequence number", "iwarp_ddp.msn",
FT_UINT32, BASE_DEC, NULL, 0x0,
NULL, HFILL} },
{ &hf_iwarp_ddp_mo, {
"Message offset", "iwarp_ddp.mo",
FT_UINT32, BASE_DEC, NULL, 0x0,
NULL, HFILL}
},
/* RDMAP */
{ &hf_iwarp_rdma, {
"RDMAP header", "iwarp_rdma",
FT_NONE, BASE_NONE, NULL, 0x0,
NULL, HFILL} },
{ &hf_iwarp_rdma_control_field, {
"RDMAP control field", "iwarp_rdma.control_field",
FT_NONE, BASE_NONE, NULL, 0x0,
"RDMA Control Field", HFILL} },
{ &hf_iwarp_rdma_version, {
"Version", "iwarp_rdma.version",
FT_UINT8, BASE_DEC, NULL, RDMA_RV,
"RDMA Version Field", HFILL} },
{ &hf_iwarp_rdma_rsvd, {
"Reserved", "iwarp_rdma.rsv",
FT_UINT8, BASE_HEX, NULL, RDMA_RSV,
"RDMA Control Field Reserved", HFILL} },
{ &hf_iwarp_rdma_opcode, {
"OpCode", "iwarp_rdma.opcode",
FT_UINT8, BASE_HEX, VALS(rdmap_messages), RDMA_OPCODE,
"RDMA OpCode Field", HFILL} },
{ &hf_iwarp_rdma_reserved, {
"Reserved", "iwarp_rdma.reserved",
FT_BYTES, BASE_NONE, NULL, 0x0,
NULL, HFILL} },
{ &hf_iwarp_rdma_inval_stag, {
"Invalidate STag", "iwarp_rdma.inval_stag",
FT_UINT32, BASE_DEC, NULL, 0x0,
"RDMA Invalidate STag", HFILL} },
{ &hf_iwarp_rdma_rr_header, {
"Read request", "iwarp_rdma.rr",
FT_NONE, BASE_NONE, NULL, 0x0,
"RDMA Read Request Header", HFILL} },
{ &hf_iwarp_rdma_terminate_header, {
"Terminate", "iwarp_rdma.terminate",
FT_NONE, BASE_NONE, NULL, 0x0,
"RDMA Terminate Header", HFILL} },
{ &hf_iwarp_rdma_sinkstag, {
"Data Sink STag", "iwarp_rdma.sinkstag",
FT_UINT32, BASE_HEX, NULL, 0x0,
NULL, HFILL} },
{ &hf_iwarp_rdma_sinkto, {
"Data Sink Tagged Offset", "iwarp_rdma.sinkto",
FT_UINT64, BASE_HEX, NULL, 0x0,
NULL, HFILL} },
{ &hf_iwarp_rdma_rdmardsz, {
"RDMA Read Message Size", "iwarp_rdma.rdmardsz",
FT_UINT32, BASE_DEC|BASE_UNIT_STRING, &units_byte_bytes, 0x0,
NULL, HFILL} },
{ &hf_iwarp_rdma_srcstag, {
"Data Source STag", "iwarp_rdma.srcstag",
FT_UINT32, BASE_HEX, NULL, 0x0,
NULL, HFILL} },
{ &hf_iwarp_rdma_srcto, {
"Data Source Tagged Offset", "iwarp_rdma.srcto",
FT_UINT64, BASE_HEX, NULL, 0x0,
NULL, HFILL} },
{ &hf_iwarp_rdma_term_ctrl, {
"Terminate Control", "iwarp_rdma.term_ctrl",
FT_NONE, BASE_NONE, NULL, 0x0,
"RDMA Terminate Control Field", HFILL} },
{ &hf_iwarp_rdma_term_layer, {
"Layer", "iwarp_rdma.term_layer",
FT_UINT8, BASE_HEX, VALS(layer_names), IWARP_LAYER,
"Terminate Control Field: Layer", HFILL} },
{ &hf_iwarp_rdma_term_etype_rdma, {
"Error Types for RDMA layer", "iwarp_rdma.term_etype_rdma",
FT_UINT8, BASE_HEX, VALS(rdma_etype_names), IWARP_ETYPE,
"Terminate Control Field: Error Type", HFILL} },
{ &hf_iwarp_rdma_term_etype_ddp, {
"Error Types for DDP layer", "iwarp_rdma.term_etype_ddp",
FT_UINT8, BASE_HEX, VALS(ddp_etype_names), IWARP_ETYPE,
"Terminate Control Field: Error Type", HFILL} },
{ &hf_iwarp_rdma_term_etype_llp, {
"Error Types for LLP layer", "iwarp_rdma.term_etype_llp",
FT_UINT8, BASE_HEX, VALS(mpa_etype_names), IWARP_ETYPE,
"Terminate Control Field: Error Type", HFILL} },
{ &hf_iwarp_rdma_term_etype, {
"Error Types", "iwarp_rdma.term_etype",
FT_UINT8, BASE_HEX, NULL, IWARP_ETYPE,
"Terminate Control Field: Error Type", HFILL} },
{ &hf_iwarp_rdma_term_errcode_rdma, {
"Error Code for RDMA layer", "iwarp_rdma.term_errcode_rdma",
FT_UINT8, BASE_HEX, VALS(rdma_errcode_names), 0x0,
"Terminate Control Field: Error Code", HFILL} },
{ &hf_iwarp_rdma_term_errcode_ddp_tagged, {
"Error Code for DDP Tagged Buffer",
"iwarp_rdma.term_errcode_ddp_tagged",
FT_UINT8, BASE_HEX, VALS(ddp_errcode_tagged_names), 0x0,
"Terminate Control Field: Error Code", HFILL} },
{ &hf_iwarp_rdma_term_errcode_ddp_untagged, {
"Error Code for DDP Untagged Buffer",
"iwarp_rdma.term_errcode_ddp_untagged",
FT_UINT8, BASE_HEX, VALS(ddp_errcode_untagged_names), 0x0,
"Terminate Control Field: Error Code", HFILL} },
{ &hf_iwarp_rdma_term_errcode, {
"Error Code", "iwarp_rdma.term_errcode",
FT_UINT8, BASE_HEX, NULL, 0x0,
"Terminate Control Field: Error Code", HFILL} },
{ &hf_iwarp_rdma_term_errcode_llp, {
"Error Code for LLP layer", "iwarp_rdma.term_errcode_llp",
FT_UINT8, BASE_HEX, VALS(mpa_errcode_names), 0x0,
"Terminate Control Field: Lower Layer Protocol Error Code",
HFILL} },
{ &hf_iwarp_rdma_term_hdrct, {
"Header control bits", "iwarp_rdma.term_hdrct",
FT_NONE, BASE_NONE, NULL, 0x0,
"Terminate Control Field: Header control bits", HFILL} },
{ &hf_iwarp_rdma_term_hdrct_m, {
"M bit", "iwarp_rdma.term_hdrct_m",
FT_BOOLEAN, 8, TFS(&tfs_set_notset), IWARP_HDRCT_M,
"Header control bit m: DDP Segment Length valid", HFILL} },
{ &hf_iwarp_rdma_term_hdrct_d, {
"D bit", "iwarp_rdma.hdrct_d",
FT_BOOLEAN, 8, TFS(&tfs_set_notset), IWARP_HDRCT_D,
"Header control bit d: DDP Header Included", HFILL} },
{ &hf_iwarp_rdma_term_hdrct_r, {
"R bit", "iwarp_rdma.hdrct_r",
FT_BOOLEAN, 8, TFS(&tfs_set_notset), IWARP_HDRCT_R,
"Header control bit r: RDMAP Header Included", HFILL} },
{ &hf_iwarp_rdma_term_rsvd, {
"Reserved", "iwarp_rdma.term_rsvd",
FT_UINT16, BASE_HEX, NULL, IWARP_TERM_RES,
NULL, HFILL} },
{ &hf_iwarp_rdma_term_ddp_seg_len, {
"DDP Segment Length", "iwarp_rdma.term_ddp_seg_len",
FT_BYTES, BASE_NONE, NULL, 0x0,
NULL, HFILL} },
{ &hf_iwarp_rdma_term_ddp_h, {
"Terminated DDP Header", "iwarp_rdma.term_ddp_h",
FT_BYTES, BASE_NONE, NULL, 0x0,
NULL, HFILL} },
{ &hf_iwarp_rdma_term_rdma_h, {
"Terminated RDMA Header", "iwarp_rdma.term_rdma_h",
FT_BYTES, BASE_NONE, NULL, 0x0,
NULL, HFILL} },
/* Atomic */
{ &hf_iwarp_rdma_atomic_reserved, {
"Reserved", "iwarp_rdma.atomic.reserved",
FT_UINT32, BASE_DEC, NULL, 0xFFFFFFF0,
NULL, HFILL} },
{ &hf_iwarp_rdma_atomic_opcode, {
"OpCode", "iwarp_rdma.atomic.opcode",
FT_UINT32, BASE_DEC, VALS(rdma_atomic_opcode_names), 0x0000000F,
NULL, HFILL} },
{ &hf_iwarp_rdma_atomic_request_identifier, {
"Request Identifier", "iwarp_rdma.atomic.request_identifier",
FT_UINT32, BASE_DEC, NULL, 0x0,
NULL, HFILL} },
{ &hf_iwarp_rdma_atomic_remote_stag, {
"Remote STag", "iwarp_rdma.atomic.remote_stag",
FT_UINT32, BASE_DEC, NULL, 0x0,
NULL, HFILL} },
{ &hf_iwarp_rdma_atomic_remote_tagged_offset, {
"Remote Tagged Offset", "iwarp_rdma.atomic.remote_tagged_offset",
FT_UINT64, BASE_DEC, NULL, 0x0,
NULL, HFILL} },
{ &hf_iwarp_rdma_atomic_add_data, {
"Add Data", "iwarp_rdma.atomic.add_data",
FT_UINT64, BASE_DEC, NULL, 0x0,
NULL, HFILL} },
{ &hf_iwarp_rdma_atomic_add_mask, {
"Add Mask", "iwarp_rdma.atomic.add_mask",
FT_UINT64, BASE_HEX, NULL, 0x0,
NULL, HFILL} },
{ &hf_iwarp_rdma_atomic_swap_data, {
"Swap Data", "iwarp_rdma.atomic.swap_data",
FT_UINT64, BASE_DEC, NULL, 0x0,
NULL, HFILL} },
{ &hf_iwarp_rdma_atomic_swap_mask, {
"Swap Mask", "iwarp_rdma.atomic.swap_mask",
FT_UINT64, BASE_HEX, NULL, 0x0,
NULL, HFILL} },
{ &hf_iwarp_rdma_atomic_compare_data, {
"Compare Data", "iwarp_rdma.atomic.compare_data",
FT_UINT64, BASE_DEC, NULL, 0x0,
NULL, HFILL} },
{ &hf_iwarp_rdma_atomic_compare_mask, {
"Compare Mask", "iwarp_rdma.atomic.compare_mask",
FT_UINT64, BASE_HEX, NULL, 0x0,
NULL, HFILL} },
{ &hf_iwarp_rdma_atomic_original_request_identifier, {
"Original Request Identifier", "iwarp_rdma.atomic.original_request_identifier",
FT_UINT32, BASE_DEC, NULL, 0x0,
NULL, HFILL} },
{ &hf_iwarp_rdma_atomic_original_remote_data_value, {
"Original Request Identifier", "iwarp_rdma.atomic.original_remote_data_value",
FT_UINT64, BASE_DEC, NULL, 0x0,
NULL, HFILL} },
{ &hf_iwarp_rdma_send_fragments, {
"Reassembled SMB Direct Fragments", "iwarp_rdma.send.fragments",
FT_NONE, BASE_NONE, NULL, 0,
NULL, HFILL} },
{ &hf_iwarp_rdma_send_fragment, {
"iWarp RDMA Send Fragment", "iwarp_rdma.send.fragment",
FT_FRAMENUM, BASE_NONE, NULL, 0,
NULL, HFILL} },
{ &hf_iwarp_rdma_send_fragment_overlap, {
"Fragment overlap", "iwarp_rdma.send.fragment.overlap",
FT_BOOLEAN, BASE_NONE, NULL, 0,
NULL, HFILL} },
{ &hf_iwarp_rdma_send_fragment_overlap_conflict, {
"Conflicting data in fragment overlap", "iwarp_rdma.send.fragment.overlap.conflict",
FT_BOOLEAN, BASE_NONE, NULL, 0,
NULL, HFILL} },
{ &hf_iwarp_rdma_send_fragment_multiple_tails, {
"Multiple tail fragments found", "iwarp_rdma.send.fragment.multipletails",
FT_BOOLEAN, BASE_NONE, NULL, 0,
NULL, HFILL} },
{ &hf_iwarp_rdma_send_fragment_too_long_fragment, {
"Fragment too long", "iwarp_rdma.send.fragment.toolongfragment",
FT_BOOLEAN, BASE_NONE, NULL, 0,
NULL, HFILL} },
{ &hf_iwarp_rdma_send_fragment_error, {
"Defragmentation error", "iwarp_rdma.send.fragment.error",
FT_FRAMENUM, BASE_NONE, NULL, 0,
NULL, HFILL} },
{ &hf_iwarp_rdma_send_fragment_count, {
"Fragment count", "iwarp_rdma.send.fragment.count",
FT_UINT32, BASE_DEC, NULL, 0x0,
NULL, HFILL} },
{ &hf_iwarp_rdma_send_reassembled_in, {
"Reassembled PDU in frame", "iwarp_rdma.send.reassembled_in",
FT_FRAMENUM, BASE_NONE, NULL, 0,
NULL, HFILL} },
{ &hf_iwarp_rdma_send_reassembled_length, {
"Reassembled iWarp RDMA Send length", "iwarp_rdma.send.reassembled.length",
FT_UINT32, BASE_DEC, NULL, 0,
NULL, HFILL} },
{ &hf_iwarp_rdma_send_reassembled_data, {
"Reassembled iWarp RDMA Send data", "iwarp_rdma.send.reassembled.data",
FT_BYTES, BASE_NONE, NULL, 0,
NULL, HFILL} },
};
/* setup protocol subtree array */
static gint *ett[] = {
&ett_iwarp_ddp_rdmap,
/* DDP */
&ett_iwarp_ddp,
&ett_iwarp_ddp_control_field,
&ett_iwarp_ddp_tagged_header,
&ett_iwarp_ddp_untagged_header,
/* RDMAP */
&ett_iwarp_rdma,
&ett_iwarp_rdma_control_field,
&ett_iwarp_rdma_rr_header,
&ett_iwarp_rdma_terminate_header,
&ett_iwarp_rdma_term_ctrl,
&ett_iwarp_rdma_term_hdrct,
&ett_iwarp_rdma_send_fragment,
&ett_iwarp_rdma_send_fragments,
};
module_t *iwarp_dep_rdmap_module;
/* register the protocol name and description */
proto_iwarp_ddp_rdmap = proto_register_protocol(
"iWARP Direct Data Placement and Remote Direct Memory Access Protocol",
"IWARP_DDP_RDMAP",
"iwarp_ddp_rdmap");
/* required function calls to register the header fields and subtrees */
proto_register_field_array(proto_iwarp_ddp_rdmap, hf, array_length(hf));
proto_register_subtree_array(ett, array_length(ett));
rdmap_heur_subdissector_list = register_heur_dissector_list("iwarp_ddp_rdmap", proto_iwarp_ddp_rdmap);
register_dissector("iwarp_ddp_rdmap", dissect_iwarp_ddp_rdmap,
proto_iwarp_ddp_rdmap);
iwarp_dep_rdmap_module = prefs_register_protocol(proto_iwarp_ddp_rdmap, NULL);
prefs_register_bool_preference(iwarp_dep_rdmap_module,
"reassemble_iwarp_rdma_send",
"Reassemble iWarp RDMA Send fragments",
"Whether the iWarp RDMA dissector should reassemble Send fragmented payloads",
&iwarp_rdma_send_reassemble);
reassembly_table_register(&iwarp_rdma_send_reassembly_table,
&addresses_ports_reassembly_table_functions);
}
/*
* Editor modelines - https://www.wireshark.org/tools/modelines.html
*
* Local variables:
* c-basic-offset: 8
* tab-width: 8
* indent-tabs-mode: t
* End:
*
* vi: set shiftwidth=8 tabstop=8 noexpandtab:
* :indentSize=8:tabSize=8:noTabs=false:
*/
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