forked from osmocom/wireshark
![Guy Harris](/assets/img/avatar_default.png)
This emphasizes that there is no such thing as *the* routine to construct a subset tvbuff; you need to choose one of tvb_new_subset_remaining() (if you want a new tvbuff that contains everything past a certain point in an existing tvbuff), tvb_new_subset_length() (if you want a subset that contains everything past a certain point, for some number of bytes, in an existing tvbuff), and tvb_new_subset_length_caplen() (for all other cases). Many of the calls to tvb_new_subset_length_caplen() should really be calling one of the other routines; that's the next step. (This also makes it easier to find the calls that need fixing.) Change-Id: Ieb3d676d8cda535451c119487d7cd3b559221f2b Reviewed-on: https://code.wireshark.org/review/19597 Reviewed-by: Guy Harris <guy@alum.mit.edu>
845 lines
28 KiB
C
845 lines
28 KiB
C
/*
|
|
* packet-fip.c
|
|
* Routines for FIP dissection - FCoE Initialization Protocol
|
|
* Copyright (c) 2008 Cisco Systems, Inc. (jeykholt@cisco.com)
|
|
*
|
|
* Wireshark - Network traffic analyzer
|
|
* By Gerald Combs <gerald@wireshark.org>
|
|
* Copyright 1998 Gerald Combs
|
|
*
|
|
* Based on packet-fcoe.c, Copyright 2006, Nuova Systems, (jre@nuovasystems.com)
|
|
* Based on packet-fcp.c, Copyright 2001, Dinesh G Dutt (ddutt@cisco.com)
|
|
*
|
|
* This program is free software; you can redistribute it and/or
|
|
* modify it under the terms of the GNU General Public License
|
|
* as published by the Free Software Foundation; either version 2
|
|
* of the License, or (at your option) any later version.
|
|
*
|
|
* This program is distributed in the hope that it will be useful,
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
* GNU General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU General Public License
|
|
* along with this program; if not, write to the Free Software
|
|
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
|
|
*/
|
|
|
|
/*
|
|
* For FIP protocol details, see http://t11.org.
|
|
* This version uses preliminary details not yet standardized.
|
|
* Based on http://www.t11.org/ftp/t11/pub/fc/bb-5/08-543v1.pdf
|
|
* and http://www.t11.org/ftp/t11/pub/fc/bb-5/08-545v1.pdf
|
|
*/
|
|
|
|
#include "config.h"
|
|
|
|
#include <epan/packet.h>
|
|
#include <epan/to_str.h>
|
|
#include <epan/etypes.h>
|
|
#include <epan/expert.h>
|
|
#include "packet-fc.h"
|
|
|
|
void proto_register_fip(void);
|
|
void proto_reg_handoff_fip(void);
|
|
|
|
/*
|
|
* FIP protocol information.
|
|
*/
|
|
#define FIP_HEADER_LEN 10
|
|
#define FIP_BPW 4 /* bytes per descriptor length unit */
|
|
|
|
/*
|
|
* FIP opcodes and subcodes.
|
|
*/
|
|
enum fip_opcode {
|
|
FIP_OP_DISC = 1, /* discovery, advertisement, etc. */
|
|
FIP_OP_LS = 2, /* Link Service request or reply */
|
|
FIP_OP_CTRL = 3, /* control */
|
|
FIP_OP_VLAN = 4, /* VLAN request or reply */
|
|
FIP_OP_VN2VN = 5 /* VN_port to VN_port operation */
|
|
};
|
|
|
|
/*
|
|
* Subcodes for FIP_OP_DISC.
|
|
*/
|
|
enum fip_disc_subcode {
|
|
FIP_SC_SOL = 1, /* solicitation */
|
|
FIP_SC_ADV = 2 /* advertisement */
|
|
};
|
|
|
|
/*
|
|
* Subcodes for FIP_OP_LS.
|
|
*/
|
|
enum fip_ls_subcode {
|
|
FIP_SC_REQ = 1, /* request */
|
|
FIP_SC_REP = 2 /* reply */
|
|
};
|
|
|
|
enum fip_ctrl_subcode {
|
|
FIP_SC_KA = 1, /* keep-alive */
|
|
FIP_SC_CVL = 2 /* clear virtual link */
|
|
};
|
|
|
|
enum fip_vlan_subcode {
|
|
FIP_VL_REQ = 1, /* request */
|
|
FIP_VL_REP = 2 /* reply */
|
|
};
|
|
|
|
/*
|
|
* Subcodes for FIP_OP_VN2VN.
|
|
* XXX proposal
|
|
*/
|
|
enum fip_vn2vn_subcode {
|
|
FIP_SC_VN_PROBE_REQ = 1, /* probe request */
|
|
FIP_SC_VN_PROBE_REP = 2, /* probe reply */
|
|
FIP_SC_VN_CLAIM_NOTIFY = 3, /* claim notification */
|
|
FIP_SC_VN_CLAIM_REP = 4, /* claim response */
|
|
FIP_SC_VN_BEACON = 5 /* beacon */
|
|
};
|
|
|
|
static const value_string fip_opcodes[] = {
|
|
{ FIP_OP_DISC, "Discovery" },
|
|
{ FIP_OP_LS, "Link Service" },
|
|
{ FIP_OP_CTRL, "Control" },
|
|
{ FIP_OP_VLAN, "VLAN" },
|
|
{ FIP_OP_VN2VN, "VN2VN" },
|
|
{ 0, NULL }
|
|
};
|
|
|
|
static const value_string fip_disc_subcodes[] = {
|
|
{ FIP_SC_SOL, "Solicitation" },
|
|
{ FIP_SC_ADV, "Advertisement" },
|
|
{ 0, NULL }
|
|
};
|
|
|
|
static const value_string fip_ls_subcodes[] = {
|
|
{ FIP_SC_REQ, "ELS Request" },
|
|
{ FIP_SC_REP, "ELS Response" },
|
|
{ 0, NULL }
|
|
};
|
|
|
|
static const value_string fip_ctrl_subcodes[] = {
|
|
{ FIP_SC_KA, "Keep-Alive" },
|
|
{ FIP_SC_CVL, "Clear Virtual Link" },
|
|
{ 0, NULL }
|
|
};
|
|
|
|
static const value_string fip_vlan_subcodes[] = {
|
|
{ FIP_VL_REQ, "VLAN Request" },
|
|
{ FIP_VL_REP, "VLAN Response" },
|
|
{ 0, NULL }
|
|
};
|
|
|
|
static const value_string fip_vn2vn_subcodes[] = {
|
|
{ FIP_SC_VN_PROBE_REQ, "Probe Request" },
|
|
{ FIP_SC_VN_PROBE_REP, "Probe Reply" },
|
|
{ FIP_SC_VN_CLAIM_NOTIFY, "Claim Notification" },
|
|
{ FIP_SC_VN_CLAIM_REP, "Claim Response" },
|
|
{ FIP_SC_VN_BEACON, "Beacon" },
|
|
{ 0, NULL }
|
|
};
|
|
|
|
/*
|
|
* Descriptor types.
|
|
*/
|
|
enum fip_desc_type {
|
|
FIP_DT_PRI = 1, /* priority for forwarder selection */
|
|
FIP_DT_MAC = 2, /* MAC address */
|
|
FIP_DT_MAP_OUI = 3, /* FC-MAP OUI */
|
|
FIP_DT_NAME = 4, /* switch name or node name */
|
|
FIP_DT_FAB = 5, /* fabric descriptor */
|
|
FIP_DT_FCOE_SIZE = 6, /* max FCoE frame size */
|
|
FIP_DT_FLOGI = 7, /* FLOGI request or response */
|
|
FIP_DT_FDISC = 8, /* FDISC request or response */
|
|
FIP_DT_LOGO = 9, /* LOGO request or response */
|
|
FIP_DT_ELP = 10, /* ELP request or response */
|
|
FIP_DT_VN = 11, /* VN_Port Info */
|
|
FIP_DT_FKA = 12, /* FIP keep-alive / advert. period */
|
|
FIP_DT_VEND = 13, /* Vendor-specific TLV */
|
|
FIP_DT_VLAN = 14, /* VLAN number */
|
|
FIP_DT_FC4F = 15 /* FC-4 features */
|
|
};
|
|
|
|
static const value_string fip_desc_types[] = {
|
|
{ FIP_DT_PRI, "Priority" },
|
|
{ FIP_DT_MAC, "MAC Address" },
|
|
{ FIP_DT_MAP_OUI, "FPMA MAP OUI" },
|
|
{ FIP_DT_NAME, "Switch or Node Name" },
|
|
{ FIP_DT_FAB, "Fabric Descriptor" },
|
|
{ FIP_DT_FCOE_SIZE, "Max FCoE frame size" },
|
|
{ FIP_DT_FLOGI, "FLOGI Encapsulation" },
|
|
{ FIP_DT_FDISC, "FDISC Encapsulation" },
|
|
{ FIP_DT_LOGO, "LOGO Encapsulation" },
|
|
{ FIP_DT_ELP, "ELP Encapsulation" },
|
|
{ FIP_DT_VN, "VN_Port Info" },
|
|
{ FIP_DT_FKA, "FKA_ADV_Period" },
|
|
{ FIP_DT_VEND, "Vendor_ID" },
|
|
{ FIP_DT_VLAN, "VLAN" },
|
|
{ FIP_DT_FC4F, "FC-4 features" },
|
|
{ 0, NULL }
|
|
};
|
|
value_string_ext fip_desc_types_ext = VALUE_STRING_EXT_INIT(fip_desc_types);
|
|
|
|
/*
|
|
* flags in header fip_flags.
|
|
*/
|
|
enum fip_flag {
|
|
FIP_FL_FPMA = 0x8000, /* supports FPMA fabric-provided MACs */
|
|
FIP_FL_SPMA = 0x4000, /* supports SPMA server-provided MACs */
|
|
FIP_FL_REC_P2P = 0x0008, /* recorded addr or point-to-point */
|
|
FIP_FL_AVAIL = 0x0004, /* available for FLOGI */
|
|
FIP_FL_SOL = 0x0002, /* this is a solicited message */
|
|
FIP_FL_FPORT = 0x0001 /* sent from an F port */
|
|
};
|
|
|
|
static int proto_fip = -1;
|
|
static int hf_fip_ver = -1;
|
|
static int hf_fip_reserved12 = -1;
|
|
static int hf_fip_op = -1;
|
|
static int hf_fip_reserved8 = -1;
|
|
static int hf_fip_disc_subcode = -1;
|
|
static int hf_fip_ls_subcode = -1;
|
|
static int hf_fip_ctrl_subcode = -1;
|
|
static int hf_fip_vlan_subcode = -1;
|
|
static int hf_fip_vn2vn_subcode = -1;
|
|
static int hf_fip_hex_subcode = -1;
|
|
static int hf_fip_dlen = -1;
|
|
static int hf_fip_flags = -1;
|
|
static int hf_fip_flag_fpma = -1;
|
|
static int hf_fip_flag_spma = -1;
|
|
static int hf_fip_flag_rec_p2p = -1;
|
|
static int hf_fip_flag_avail = -1;
|
|
static int hf_fip_flag_sol = -1;
|
|
static int hf_fip_flag_fport = -1;
|
|
static int hf_fip_descriptors = -1;
|
|
|
|
static const int *hf_fip_flags_fields[] = {
|
|
&hf_fip_flag_fpma,
|
|
&hf_fip_flag_spma,
|
|
&hf_fip_flag_rec_p2p,
|
|
&hf_fip_flag_avail,
|
|
&hf_fip_flag_sol,
|
|
&hf_fip_flag_fport,
|
|
NULL
|
|
};
|
|
|
|
static int hf_fip_desc_type = -1;
|
|
static int hf_fip_desc_len = -1;
|
|
static int hf_fip_desc_pri = -1;
|
|
static int hf_fip_desc_mac = -1;
|
|
static int hf_fip_desc_map = -1;
|
|
static int hf_fip_desc_name = -1;
|
|
static int hf_fip_desc_fab_vfid = -1;
|
|
static int hf_fip_desc_fab_map = -1;
|
|
static int hf_fip_desc_fab_name = -1;
|
|
static int hf_fip_desc_fcoe_size = -1;
|
|
static int hf_fip_desc_vn_mac = -1;
|
|
static int hf_fip_desc_vn_fid = -1;
|
|
static int hf_fip_desc_vn_wwpn = -1;
|
|
static int hf_fip_desc_fka = -1;
|
|
static int hf_fip_desc_vend = -1;
|
|
static int hf_fip_desc_vend_data = -1;
|
|
static int hf_fip_desc_vlan = -1;
|
|
static int hf_fip_desc_unk = -1;
|
|
static int hf_fip_desc_fc4f_types = -1;
|
|
static int hf_fip_desc_fcp_feat = -1;
|
|
static int hf_fip_type_ip = -1;
|
|
static int hf_fip_type_fcp = -1;
|
|
static int hf_fip_type_gs3 = -1;
|
|
static int hf_fip_fcp_feat_i = -1;
|
|
static int hf_fip_fcp_feat_t = -1;
|
|
|
|
static int ett_fip = -1;
|
|
static int ett_fip_flags = -1;
|
|
static int ett_fip_dt_pri = -1;
|
|
static int ett_fip_dt_mac = -1;
|
|
static int ett_fip_dt_map = -1;
|
|
static int ett_fip_dt_name = -1;
|
|
static int ett_fip_dt_fab = -1;
|
|
static int ett_fip_dt_mdl = -1;
|
|
static int ett_fip_dt_caps = -1;
|
|
static int ett_fip_dt_vn = -1;
|
|
static int ett_fip_dt_fka = -1;
|
|
static int ett_fip_dt_vend = -1;
|
|
static int ett_fip_dt_vlan = -1;
|
|
static int ett_fip_dt_unk = -1;
|
|
static int ett_fip_dt_fc4f = -1;
|
|
static int ett_fip_dt_fc4f_types = -1;
|
|
static int ett_fip_dt_fcp_feat = -1;
|
|
|
|
static expert_field ei_fip_descriptors = EI_INIT;
|
|
|
|
static dissector_handle_t fc_handle;
|
|
|
|
/*
|
|
* Insert common descriptor type and length fields.
|
|
*/
|
|
static proto_tree*
|
|
fip_desc_type_len(proto_tree *tree, tvbuff_t *tvb, guint8 dtype, int ett, proto_item** item)
|
|
{
|
|
proto_tree* ret_tree;
|
|
|
|
ret_tree = proto_tree_add_subtree_format(tree, tvb, 0, -1, ett, item,
|
|
"Descriptor: %s ", val_to_str_ext_const(dtype, &fip_desc_types_ext, "Unknown 0x%x"));
|
|
proto_tree_add_item(ret_tree, hf_fip_desc_type, tvb, 0, 1, ENC_BIG_ENDIAN);
|
|
proto_tree_add_item(ret_tree, hf_fip_desc_len, tvb, 1, 1, ENC_BIG_ENDIAN);
|
|
|
|
return ret_tree;
|
|
}
|
|
|
|
/*
|
|
* Dissect the FC-4 type features descriptor.
|
|
*/
|
|
static void
|
|
fip_desc_fc4f(tvbuff_t *tvb, proto_tree *tree, proto_item *item)
|
|
{
|
|
guint mask;
|
|
guint offset;
|
|
|
|
static const int *types_word0[] = { /* types 0 - 31 */
|
|
&hf_fip_type_ip,
|
|
&hf_fip_type_fcp,
|
|
NULL
|
|
};
|
|
static const int *types_word1[] = { /* types 32 - 63 */
|
|
&hf_fip_type_gs3,
|
|
NULL
|
|
};
|
|
static const int *fcp_feat[] = {
|
|
&hf_fip_fcp_feat_t,
|
|
&hf_fip_fcp_feat_i,
|
|
NULL
|
|
};
|
|
|
|
/*
|
|
* First the 256-bit bitmask of types supported.
|
|
*/
|
|
offset = 4;
|
|
proto_tree_add_bitmask(tree, tvb, offset, hf_fip_desc_fc4f_types,
|
|
ett_fip_dt_fc4f_types, types_word0, ENC_BIG_ENDIAN);
|
|
offset += 4;
|
|
proto_tree_add_bitmask(tree, tvb, offset, hf_fip_desc_fc4f_types,
|
|
ett_fip_dt_fc4f_types, types_word1, ENC_BIG_ENDIAN);
|
|
offset += 256 / 8 - 4; /* skip to end of bitmask (32 bytes) */
|
|
|
|
/*
|
|
* Next the 4-bit capabilities per type.
|
|
* Only decode FCP (type 8) for now.
|
|
*/
|
|
offset += 8 / 2; /* skip first 8 types, 2 types per byte */
|
|
proto_tree_add_bitmask(tree, tvb, offset, hf_fip_desc_fcp_feat,
|
|
ett_fip_dt_fcp_feat, fcp_feat, ENC_BIG_ENDIAN);
|
|
mask = tvb_get_ntohl(tvb, offset);
|
|
if (mask & 1) {
|
|
proto_item_append_text(item, "FCP Target ");
|
|
}
|
|
if (mask & 2) {
|
|
proto_item_append_text(item, "FCP Initiator ");
|
|
}
|
|
}
|
|
|
|
static int
|
|
dissect_fip(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, void* data _U_)
|
|
{
|
|
guint op;
|
|
guint sub;
|
|
guint rlen;
|
|
proto_item *ti;
|
|
proto_item *item;
|
|
proto_tree *fip_tree;
|
|
proto_tree *subtree;
|
|
guint dtype;
|
|
guint dlen;
|
|
guint desc_offset;
|
|
guint val;
|
|
tvbuff_t *desc_tvb;
|
|
const char *info;
|
|
|
|
col_set_str(pinfo->cinfo, COL_PROTOCOL, "FIP");
|
|
col_clear(pinfo->cinfo, COL_INFO);
|
|
|
|
if (!tvb_bytes_exist(tvb, 0, FIP_HEADER_LEN)) {
|
|
col_set_str(pinfo->cinfo, COL_INFO, "[packet too short]");
|
|
proto_tree_add_protocol_format(tree, proto_fip, tvb, 0,
|
|
-1, "FIP [packet too short]");
|
|
return tvb_captured_length(tvb);
|
|
}
|
|
|
|
op = tvb_get_ntohs(tvb, 2);
|
|
sub = tvb_get_guint8(tvb, 5);
|
|
|
|
switch (op) {
|
|
case FIP_OP_DISC:
|
|
info = val_to_str(sub, fip_disc_subcodes, "Discovery 0x%x");
|
|
break;
|
|
case FIP_OP_LS:
|
|
info = val_to_str(sub, fip_ls_subcodes, "Link Service 0x%x");
|
|
break;
|
|
case FIP_OP_CTRL:
|
|
info = val_to_str(sub, fip_ctrl_subcodes, "Control 0x%x");
|
|
break;
|
|
case FIP_OP_VLAN:
|
|
info = val_to_str(sub, fip_vlan_subcodes, "VLAN 0x%x");
|
|
break;
|
|
case FIP_OP_VN2VN:
|
|
info = val_to_str(sub, fip_vn2vn_subcodes, "VN2VN 0x%x");
|
|
break;
|
|
default:
|
|
info = val_to_str(op, fip_opcodes, "Unknown op 0x%x");
|
|
break;
|
|
}
|
|
|
|
col_add_str(pinfo->cinfo, COL_INFO, info);
|
|
|
|
rlen = tvb_get_ntohs(tvb, 6);
|
|
|
|
ti = proto_tree_add_protocol_format(tree, proto_fip, tvb, 0,
|
|
FIP_HEADER_LEN + rlen * FIP_BPW,
|
|
"FIP %s", info);
|
|
fip_tree = proto_item_add_subtree(ti, ett_fip);
|
|
proto_tree_add_item(fip_tree, hf_fip_ver, tvb, 0, 1, ENC_BIG_ENDIAN);
|
|
proto_tree_add_item(fip_tree, hf_fip_reserved12, tvb, 0, 2, ENC_BIG_ENDIAN);
|
|
proto_tree_add_item(fip_tree, hf_fip_op, tvb, 2, 2, ENC_BIG_ENDIAN);
|
|
proto_tree_add_item(fip_tree, hf_fip_reserved8, tvb, 4, 1, ENC_NA);
|
|
switch (op) {
|
|
case FIP_OP_DISC:
|
|
proto_tree_add_item(fip_tree, hf_fip_disc_subcode, tvb, 5, 1, ENC_BIG_ENDIAN);
|
|
break;
|
|
case FIP_OP_LS:
|
|
proto_tree_add_item(fip_tree, hf_fip_ls_subcode, tvb, 5, 1, ENC_BIG_ENDIAN);
|
|
break;
|
|
case FIP_OP_CTRL:
|
|
proto_tree_add_item(fip_tree, hf_fip_ctrl_subcode, tvb, 5, 1, ENC_BIG_ENDIAN);
|
|
break;
|
|
case FIP_OP_VLAN:
|
|
proto_tree_add_item(fip_tree, hf_fip_vlan_subcode, tvb, 5, 1, ENC_BIG_ENDIAN);
|
|
break;
|
|
case FIP_OP_VN2VN:
|
|
proto_tree_add_item(fip_tree, hf_fip_vn2vn_subcode, tvb, 5, 1, ENC_BIG_ENDIAN);
|
|
break;
|
|
default:
|
|
proto_tree_add_item(fip_tree, hf_fip_hex_subcode, tvb, 5, 1, ENC_BIG_ENDIAN);
|
|
break;
|
|
}
|
|
proto_tree_add_item(fip_tree, hf_fip_dlen, tvb, 6, 2, ENC_BIG_ENDIAN);
|
|
|
|
proto_tree_add_bitmask(fip_tree, tvb, 8, hf_fip_flags,
|
|
ett_fip_flags, hf_fip_flags_fields, ENC_BIG_ENDIAN);
|
|
|
|
desc_offset = FIP_HEADER_LEN;
|
|
rlen *= FIP_BPW;
|
|
proto_tree_add_bytes_format(fip_tree, hf_fip_descriptors, tvb, desc_offset, rlen, NULL, "Descriptors");
|
|
|
|
while ((rlen > 0) && tvb_bytes_exist(tvb, desc_offset, 2)) {
|
|
dlen = tvb_get_guint8(tvb, desc_offset + 1) * FIP_BPW;
|
|
if (!dlen) {
|
|
proto_tree_add_expert(fip_tree, pinfo, &ei_fip_descriptors, tvb, desc_offset, -1);
|
|
break;
|
|
}
|
|
if (!tvb_bytes_exist(tvb, desc_offset, dlen) || dlen > rlen) {
|
|
break;
|
|
}
|
|
desc_tvb = tvb_new_subset_length_caplen(tvb, desc_offset, dlen, -1);
|
|
dtype = tvb_get_guint8(desc_tvb, 0);
|
|
desc_offset += dlen;
|
|
rlen -= dlen;
|
|
|
|
switch (dtype) {
|
|
case FIP_DT_PRI:
|
|
subtree = fip_desc_type_len(fip_tree, desc_tvb, dtype, ett_fip_dt_pri, &item);
|
|
proto_tree_add_item(subtree, hf_fip_desc_pri, desc_tvb,
|
|
3, 1, ENC_BIG_ENDIAN);
|
|
proto_item_append_text(item, "%u", tvb_get_guint8(desc_tvb, 3));
|
|
break;
|
|
case FIP_DT_MAC:
|
|
subtree = fip_desc_type_len(fip_tree, desc_tvb, dtype, ett_fip_dt_mac, &item);
|
|
proto_tree_add_item(subtree, hf_fip_desc_mac, desc_tvb,
|
|
2, 6, ENC_NA);
|
|
proto_item_append_text(item, "%s",
|
|
tvb_bytes_to_str_punct(wmem_packet_scope(), desc_tvb, 2, 6, ':'));
|
|
break;
|
|
case FIP_DT_MAP_OUI:
|
|
subtree = fip_desc_type_len(fip_tree, desc_tvb, dtype, ett_fip_dt_map, &item);
|
|
proto_tree_add_item(subtree, hf_fip_desc_map, desc_tvb,
|
|
5, 3, ENC_NA);
|
|
proto_item_append_text(item, "%s", tvb_fc_to_str(desc_tvb, 5));
|
|
break;
|
|
case FIP_DT_NAME:
|
|
subtree = fip_desc_type_len(fip_tree, desc_tvb, dtype, ett_fip_dt_name, &item);
|
|
proto_tree_add_item(subtree, hf_fip_desc_name, desc_tvb, 4, 8, ENC_NA);
|
|
proto_item_append_text(item, "%s", tvb_fcwwn_to_str(desc_tvb, 4));
|
|
break;
|
|
case FIP_DT_FAB:
|
|
subtree = fip_desc_type_len(fip_tree, desc_tvb, dtype, ett_fip_dt_fab, &item);
|
|
proto_tree_add_item(subtree, hf_fip_desc_fab_vfid, desc_tvb,
|
|
2, 2, ENC_BIG_ENDIAN);
|
|
proto_tree_add_item(subtree, hf_fip_desc_fab_map, desc_tvb,
|
|
5, 3, ENC_NA);
|
|
proto_tree_add_item(subtree, hf_fip_desc_fab_name, desc_tvb, 8, 8, ENC_NA);
|
|
proto_item_append_text(item, "%s", tvb_fcwwn_to_str(desc_tvb, 8));
|
|
break;
|
|
case FIP_DT_FCOE_SIZE:
|
|
subtree = fip_desc_type_len(fip_tree, desc_tvb, dtype, ett_fip_dt_mdl, &item);
|
|
proto_tree_add_item(subtree, hf_fip_desc_fcoe_size, desc_tvb,
|
|
2, 2, ENC_BIG_ENDIAN);
|
|
proto_item_append_text(item, "%u", tvb_get_ntohs(desc_tvb, 2));
|
|
break;
|
|
case FIP_DT_FLOGI:
|
|
case FIP_DT_FDISC:
|
|
case FIP_DT_LOGO:
|
|
case FIP_DT_ELP: {
|
|
tvbuff_t *ls_tvb;
|
|
fc_data_t fc_data = {ETHERTYPE_FIP, 0};
|
|
|
|
subtree = fip_desc_type_len(fip_tree, desc_tvb, dtype, ett_fip_dt_caps, &item);
|
|
ls_tvb = tvb_new_subset_length_caplen(desc_tvb, 4, dlen - 4, -1);
|
|
call_dissector_with_data(fc_handle, ls_tvb, pinfo, subtree, &fc_data);
|
|
proto_item_append_text(item, "%u bytes", dlen - 4);
|
|
}
|
|
break;
|
|
case FIP_DT_VN:
|
|
subtree = fip_desc_type_len(fip_tree, desc_tvb, dtype, ett_fip_dt_vn, &item);
|
|
proto_tree_add_item(subtree, hf_fip_desc_vn_mac, desc_tvb,
|
|
2, 6, ENC_NA);
|
|
proto_tree_add_item(subtree, hf_fip_desc_vn_fid, desc_tvb,
|
|
9, 3, ENC_BIG_ENDIAN);
|
|
proto_tree_add_item(subtree, hf_fip_desc_vn_wwpn,
|
|
desc_tvb, 12, 8, ENC_NA);
|
|
proto_item_append_text(item, "MAC %s FC_ID %6.6x",
|
|
tvb_bytes_to_str_punct(wmem_packet_scope(), desc_tvb, 2, 6, ':'),
|
|
tvb_get_ntoh24(desc_tvb, 9));
|
|
break;
|
|
case FIP_DT_FKA:
|
|
subtree = fip_desc_type_len(fip_tree, desc_tvb, dtype, ett_fip_dt_fka, &item);
|
|
val = tvb_get_ntohl(desc_tvb, 4);
|
|
proto_tree_add_uint_format_value(subtree, hf_fip_desc_fka,
|
|
desc_tvb, 4, 4, val, "%u ms", val);
|
|
proto_item_append_text(item, "%u ms", val);
|
|
break;
|
|
case FIP_DT_VEND:
|
|
subtree = fip_desc_type_len(fip_tree, desc_tvb, dtype, ett_fip_dt_vend, &item);
|
|
proto_tree_add_item(subtree, hf_fip_desc_vend, desc_tvb,
|
|
4, 8, ENC_NA);
|
|
if (tvb_bytes_exist(desc_tvb, 9, -1)) {
|
|
proto_tree_add_item(subtree, hf_fip_desc_vend_data,
|
|
desc_tvb, 9, -1, ENC_NA);
|
|
}
|
|
break;
|
|
case FIP_DT_VLAN:
|
|
subtree = fip_desc_type_len(fip_tree, desc_tvb, dtype, ett_fip_dt_vlan, &item);
|
|
proto_tree_add_item(subtree, hf_fip_desc_vlan, desc_tvb,
|
|
2, 2, ENC_BIG_ENDIAN);
|
|
proto_item_append_text(item, "%u", tvb_get_ntohs(desc_tvb, 2));
|
|
break;
|
|
case FIP_DT_FC4F:
|
|
subtree = fip_desc_type_len(fip_tree, desc_tvb, dtype, ett_fip_dt_fc4f, &item);
|
|
fip_desc_fc4f(desc_tvb, subtree, item);
|
|
break;
|
|
default:
|
|
subtree = fip_desc_type_len(fip_tree, desc_tvb, dtype, ett_fip_dt_unk, &item);
|
|
proto_tree_add_item(subtree, hf_fip_desc_unk, desc_tvb,
|
|
2, -1, ENC_NA);
|
|
break;
|
|
}
|
|
}
|
|
return tvb_captured_length(tvb);
|
|
}
|
|
|
|
void
|
|
proto_register_fip(void)
|
|
{
|
|
/* Setup list of header fields See Section 1.6.1 for details*/
|
|
static hf_register_info hf[] = {
|
|
/*
|
|
* FIP header fields.
|
|
*/
|
|
{ &hf_fip_ver,
|
|
{ "Version", "fip.ver",
|
|
FT_UINT8, BASE_DEC, NULL, 0xf0,
|
|
NULL, HFILL}},
|
|
|
|
{ &hf_fip_reserved12,
|
|
{ "Reserved", "fip.reserved",
|
|
FT_UINT16, BASE_HEX, NULL, 0x0fff,
|
|
NULL, HFILL}},
|
|
|
|
{ &hf_fip_op,
|
|
{ "Opcode", "fip.opcode",
|
|
FT_UINT16, BASE_HEX, VALS(fip_opcodes), 0,
|
|
NULL, HFILL}},
|
|
|
|
{ &hf_fip_reserved8,
|
|
{ "Reserved", "fip.reserved",
|
|
FT_UINT8, BASE_HEX, NULL, 0x0,
|
|
NULL, HFILL}},
|
|
|
|
{ &hf_fip_disc_subcode,
|
|
{ "Discovery Subcode", "fip.disc_subcode",
|
|
FT_UINT8, BASE_HEX, VALS(fip_disc_subcodes), 0,
|
|
NULL, HFILL}},
|
|
|
|
{ &hf_fip_ls_subcode,
|
|
{ "Link Service Subcode", "fip.ls.subcode",
|
|
FT_UINT8, BASE_HEX, VALS(fip_ls_subcodes), 0,
|
|
NULL, HFILL}},
|
|
|
|
{ &hf_fip_ctrl_subcode,
|
|
{ "Control Subcode", "fip.ctrl_subcode",
|
|
FT_UINT8, BASE_HEX, VALS(fip_ctrl_subcodes), 0,
|
|
NULL, HFILL}},
|
|
|
|
{ &hf_fip_vlan_subcode,
|
|
{ "VLAN Subcode", "fip.vlan_subcode",
|
|
FT_UINT8, BASE_HEX, VALS(fip_vlan_subcodes), 0,
|
|
NULL, HFILL}},
|
|
|
|
{ &hf_fip_vn2vn_subcode,
|
|
{ "VN2VN Subcode", "fip.vn2vn_subcode",
|
|
FT_UINT8, BASE_HEX, VALS(fip_vn2vn_subcodes), 0,
|
|
NULL, HFILL}},
|
|
|
|
{ &hf_fip_hex_subcode,
|
|
{ "Unknown Subcode", "fip.subcode",
|
|
FT_UINT8, BASE_HEX, NULL, 0,
|
|
NULL, HFILL}},
|
|
|
|
{ &hf_fip_dlen,
|
|
{ "Length of Descriptors (words)", "fip.dl_len",
|
|
FT_UINT16, BASE_DEC, NULL, 0,
|
|
NULL, HFILL}},
|
|
|
|
{ &hf_fip_flags,
|
|
{ "Flags", "fip.flags",
|
|
FT_UINT16, BASE_HEX, NULL, 0,
|
|
NULL, HFILL}},
|
|
|
|
{ &hf_fip_flag_fpma,
|
|
{ "Fabric Provided MAC addr", "fip.flags.fpma",
|
|
FT_BOOLEAN, 16, NULL, FIP_FL_FPMA,
|
|
NULL, HFILL}},
|
|
|
|
{ &hf_fip_flag_spma,
|
|
{ "Server Provided MAC addr", "fip.flags.spma",
|
|
FT_BOOLEAN, 16, NULL, FIP_FL_SPMA,
|
|
NULL, HFILL}},
|
|
|
|
{ &hf_fip_flag_rec_p2p,
|
|
{ "REC/P2P", "fip.flags.rec_p2p",
|
|
FT_BOOLEAN, 16, NULL, FIP_FL_REC_P2P,
|
|
NULL, HFILL}},
|
|
|
|
{ &hf_fip_flag_avail,
|
|
{ "Available", "fip.flags.available",
|
|
FT_BOOLEAN, 16, NULL, FIP_FL_AVAIL,
|
|
NULL, HFILL}},
|
|
|
|
{ &hf_fip_flag_sol,
|
|
{ "Solicited", "fip.flags.sol",
|
|
FT_BOOLEAN, 16, NULL, FIP_FL_SOL,
|
|
NULL, HFILL}},
|
|
|
|
{ &hf_fip_flag_fport,
|
|
{ "F_Port", "fip.flags.fport",
|
|
FT_BOOLEAN, 16, NULL, FIP_FL_FPORT,
|
|
NULL, HFILL}},
|
|
|
|
{ &hf_fip_desc_type,
|
|
{ "Descriptor Type", "fip.desc_type",
|
|
FT_UINT8, BASE_HEX | BASE_EXT_STRING, &fip_desc_types_ext, 0,
|
|
NULL, HFILL}},
|
|
|
|
{ &hf_fip_desc_len,
|
|
{ "Descriptor Length (words)", "fip.desc_len",
|
|
FT_UINT8, BASE_DEC, NULL, 0,
|
|
NULL, HFILL}},
|
|
|
|
/*
|
|
* Various descriptor fields.
|
|
*/
|
|
{ &hf_fip_desc_pri,
|
|
{ "Priority", "fip.pri",
|
|
FT_UINT8, BASE_DEC, NULL, 0,
|
|
NULL, HFILL}},
|
|
|
|
{ &hf_fip_desc_mac,
|
|
{ "MAC Address", "fip.mac",
|
|
FT_ETHER, BASE_NONE, NULL, 0,
|
|
NULL, HFILL}},
|
|
|
|
{ &hf_fip_desc_map,
|
|
{ "FC-MAP-OUI", "fip.map",
|
|
FT_BYTES, SEP_DOT, NULL, 0,
|
|
NULL, HFILL}},
|
|
|
|
{ &hf_fip_desc_name,
|
|
{ "Switch or Node Name", "fip.name",
|
|
FT_FCWWN, BASE_NONE, NULL, 0,
|
|
NULL, HFILL}},
|
|
|
|
{ &hf_fip_desc_fab_vfid,
|
|
{ "VFID", "fip.fab.vfid",
|
|
FT_UINT16, BASE_DEC, NULL, 0,
|
|
NULL, HFILL}},
|
|
|
|
{ &hf_fip_desc_fab_map,
|
|
{ "FC-MAP", "fip.fab.map",
|
|
FT_BYTES, SEP_DOT, NULL, 0,
|
|
NULL, HFILL}},
|
|
|
|
{ &hf_fip_desc_fab_name,
|
|
{ "Fabric Name", "fip.fab.name",
|
|
FT_FCWWN, BASE_NONE, NULL, 0,
|
|
NULL, HFILL}},
|
|
|
|
{ &hf_fip_desc_fcoe_size,
|
|
{ "Max FCoE frame size", "fip.fcoe_size",
|
|
FT_UINT16, BASE_DEC, NULL, 0,
|
|
NULL, HFILL}},
|
|
|
|
{ &hf_fip_desc_vn_mac,
|
|
{ "VN_Port MAC Address", "fip.vn.mac",
|
|
FT_ETHER, BASE_NONE, NULL, 0,
|
|
NULL, HFILL}},
|
|
|
|
{ &hf_fip_desc_vn_fid,
|
|
{ "VN_Port FC_ID", "fip.vn.fc_id",
|
|
FT_UINT32, BASE_HEX, NULL, 0,
|
|
NULL, HFILL}},
|
|
|
|
{ &hf_fip_desc_vn_wwpn,
|
|
{ "Port Name", "fip.vn.pwwn",
|
|
FT_FCWWN, BASE_NONE, NULL, 0,
|
|
NULL, HFILL}},
|
|
|
|
{ &hf_fip_desc_fka,
|
|
{ "FKA_ADV_Period", "fip.fka",
|
|
FT_UINT32, BASE_DEC, NULL, 0,
|
|
NULL, HFILL}},
|
|
|
|
{ &hf_fip_desc_vend,
|
|
{ "Vendor-ID", "fip.vendor",
|
|
FT_BYTES, BASE_NONE, NULL, 0,
|
|
NULL, HFILL}},
|
|
|
|
{ &hf_fip_desc_vend_data,
|
|
{ "Vendor-specific data", "fip.vendor.data",
|
|
FT_BYTES, BASE_NONE, NULL, 0,
|
|
NULL, HFILL}},
|
|
|
|
{ &hf_fip_desc_vlan,
|
|
{ "VLAN", "fip.vlan",
|
|
FT_UINT16, BASE_DEC, NULL, 0,
|
|
NULL, HFILL}},
|
|
|
|
{ &hf_fip_desc_fc4f_types,
|
|
{ "FC4 Types", "fip.fc4f.types",
|
|
FT_UINT32, BASE_HEX, NULL, 0,
|
|
NULL, HFILL}},
|
|
|
|
{ &hf_fip_desc_fcp_feat,
|
|
{ "FCP Features", "fip.fc4f.feat.fcp",
|
|
FT_UINT32, BASE_HEX, NULL, 0xf,
|
|
NULL, HFILL}},
|
|
|
|
{ &hf_fip_type_ip,
|
|
{ "IP", "fip.fc4f.ip",
|
|
FT_BOOLEAN, 32, NULL, 1 << 5,
|
|
NULL, HFILL}},
|
|
|
|
{ &hf_fip_type_fcp,
|
|
{ "FCP", "fip.fc4f.fcp",
|
|
FT_BOOLEAN, 32, NULL, 1 << 8,
|
|
NULL, HFILL}},
|
|
|
|
{ &hf_fip_type_gs3,
|
|
{ "GS3", "fip.fc4f.gs3",
|
|
FT_BOOLEAN, 32, NULL, 1 << 0,
|
|
NULL, HFILL}},
|
|
|
|
{ &hf_fip_fcp_feat_t,
|
|
{ "FCP Target", "fip.fc4f.feat.fcp.target",
|
|
FT_BOOLEAN, 32, NULL, 1,
|
|
NULL, HFILL}},
|
|
|
|
{ &hf_fip_fcp_feat_i,
|
|
{ "FCP Initiator", "fip.fc4f.feat.fcp.initiator",
|
|
FT_BOOLEAN, 32, NULL, 2,
|
|
NULL, HFILL}},
|
|
|
|
{ &hf_fip_desc_unk,
|
|
{ "Unknown Descriptor", "fip.desc_unk",
|
|
FT_BYTES, BASE_NONE, NULL, 0,
|
|
NULL, HFILL}},
|
|
|
|
{ &hf_fip_descriptors,
|
|
{ "Descriptors", "fip.descriptors",
|
|
FT_BYTES, BASE_NONE, NULL, 0,
|
|
NULL, HFILL}},
|
|
|
|
};
|
|
static gint *ett[] = {
|
|
&ett_fip,
|
|
&ett_fip_flags,
|
|
&ett_fip_dt_pri,
|
|
&ett_fip_dt_mac,
|
|
&ett_fip_dt_map,
|
|
&ett_fip_dt_name,
|
|
&ett_fip_dt_fab,
|
|
&ett_fip_dt_mdl,
|
|
&ett_fip_dt_caps,
|
|
&ett_fip_dt_vn,
|
|
&ett_fip_dt_fka,
|
|
&ett_fip_dt_vend,
|
|
&ett_fip_dt_vlan,
|
|
&ett_fip_dt_fc4f,
|
|
&ett_fip_dt_fc4f_types,
|
|
&ett_fip_dt_fcp_feat,
|
|
&ett_fip_dt_unk
|
|
};
|
|
|
|
static ei_register_info ei[] = {
|
|
{ &ei_fip_descriptors, { "fip.descriptors.length_error", PI_MALFORMED, PI_ERROR, "Descriptor [length error]", EXPFILL }},
|
|
};
|
|
|
|
expert_module_t* expert_fip;
|
|
|
|
/* Register the protocol name and description */
|
|
proto_fip = proto_register_protocol("FCoE Initialization Protocol",
|
|
"FIP", "fip");
|
|
|
|
/* Required function calls to register the header fields and
|
|
* subtrees used */
|
|
proto_register_field_array(proto_fip, hf, array_length(hf));
|
|
proto_register_subtree_array(ett, array_length(ett));
|
|
expert_fip = expert_register_protocol(proto_fip);
|
|
expert_register_field_array(expert_fip, ei, array_length(ei));
|
|
}
|
|
|
|
/*
|
|
* This function name is required because a script is used to find these
|
|
* routines and create the code that calls these routines.
|
|
*/
|
|
void
|
|
proto_reg_handoff_fip(void)
|
|
{
|
|
dissector_handle_t fip_handle;
|
|
|
|
fip_handle = create_dissector_handle(dissect_fip, proto_fip);
|
|
dissector_add_uint("ethertype", ETHERTYPE_FIP, fip_handle);
|
|
fc_handle = find_dissector_add_dependency("fc", proto_fip);
|
|
}
|
|
|
|
/*
|
|
* Editor modelines - http://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:
|
|
*/
|