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wireshark/epan/dissectors/packet-nstrace.c

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/* packet-nstrace.c
* Routines for nstrace dissection
* Copyright 2006, Ravi Kondamuru <Ravi.Kondamuru@citrix.com>
*
* $Id$
*
* Wireshark - Network traffic analyzer
* By Gerald Combs <gerald@wireshark.org>
* Copyright 1998 Gerald Combs
*
* 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.
*/
#include "config.h"
#include <glib.h>
#include <epan/packet.h>
#include <wiretap/netscaler.h>
static int proto_nstrace = -1;
static int hf_ns_nicno = -1;
static int hf_ns_src_vm = -1;
static int hf_ns_dst_vm = -1;
static int hf_ns_dir = -1;
static int hf_ns_pcbdevno = -1;
static int hf_ns_l_pcbdevno = -1;
static int hf_ns_devno = -1;
static int hf_ns_vlantag = -1;
static int hf_ns_coreid = -1;
static int hf_ns_snode = -1;
static int hf_ns_dnode = -1;
static int hf_ns_clflags = -1;
static int hf_ns_clflags_res = -1;
static int hf_ns_clflags_rssh = -1;
static int hf_ns_clflags_rss = -1;
static int hf_ns_clflags_dfd = -1;
static int hf_ns_clflags_fr = -1;
static int hf_ns_clflags_fp = -1;
static gint ett_ns = -1;
static gint ett_ns_flags = -1;
static const value_string ns_dir_vals[] = {
{ NSPR_PDPKTRACEFULLTX_V10, "TX" },
{ NSPR_PDPKTRACEFULLTX_V20, "TX" },
{ NSPR_PDPKTRACEFULLTXB_V10, "TXB" },
{ NSPR_PDPKTRACEFULLTXB_V20, "TXB" },
{ NSPR_PDPKTRACEFULLRX_V10, "RX" },
{ NSPR_PDPKTRACEFULLRX_V20, "RX" },
{ NSPR_PDPKTRACEPARTTX_V10, "TX" },
{ NSPR_PDPKTRACEPARTTX_V20, "TX" },
{ NSPR_PDPKTRACEPARTTXB_V10, "TXB" },
{ NSPR_PDPKTRACEPARTTXB_V20, "TXB" },
{ NSPR_PDPKTRACEPARTRX_V10, "RX" },
{ NSPR_PDPKTRACEPARTRX_V20, "RX" },
{ NSPR_PDPKTRACEFULLTX_V21, "TX" },
{ NSPR_PDPKTRACEFULLTXB_V21, "TXB" },
{ NSPR_PDPKTRACEFULLRX_V21, "RX" },
{ NSPR_PDPKTRACEPARTTX_V21, "TX" },
{ NSPR_PDPKTRACEPARTTXB_V21, "TXB" },
{ NSPR_PDPKTRACEPARTRX_V21, "RX" },
{ NSPR_PDPKTRACEFULLTX_V22, "TX" },
{ NSPR_PDPKTRACEFULLTX_V23, "TX" },
{ NSPR_PDPKTRACEFULLTX_V24, "TX" },
{ NSPR_PDPKTRACEFULLTX_V25, "TX" },
{ NSPR_PDPKTRACEFULLTXB_V22, "TXB" },
{ NSPR_PDPKTRACEFULLTXB_V23, "TXB" },
{ NSPR_PDPKTRACEFULLTXB_V24, "TXB" },
{ NSPR_PDPKTRACEFULLTXB_V25, "TXB" },
{ NSPR_PDPKTRACEFULLRX_V22, "RX" },
{ NSPR_PDPKTRACEFULLRX_V23, "RX" },
{ NSPR_PDPKTRACEFULLRX_V24, "RX" },
{ NSPR_PDPKTRACEFULLRX_V25, "RX" },
{ NSPR_PDPKTRACEFULLNEWRX_V24, "NEW_RX" },
{ NSPR_PDPKTRACEFULLNEWRX_V25, "NEW_RX" },
{ NSPR_PDPKTRACEPARTTX_V22, "TX" },
{ NSPR_PDPKTRACEPARTTX_V23, "TX" },
{ NSPR_PDPKTRACEPARTTX_V24, "TX" },
{ NSPR_PDPKTRACEPARTTX_V25, "TX" },
{ NSPR_PDPKTRACEPARTTXB_V22, "TXB" },
{ NSPR_PDPKTRACEPARTTXB_V23, "TXB" },
{ NSPR_PDPKTRACEPARTTXB_V24, "TXB" },
{ NSPR_PDPKTRACEPARTTXB_V25, "TXB" },
{ NSPR_PDPKTRACEPARTRX_V22, "RX" },
{ NSPR_PDPKTRACEPARTRX_V23, "RX" },
{ NSPR_PDPKTRACEPARTRX_V24, "RX" },
{ NSPR_PDPKTRACEPARTRX_V25, "RX" },
{ NSPR_PDPKTRACEPARTNEWRX_V24, "NEW_RX" },
{ NSPR_PDPKTRACEPARTNEWRX_V25, "NEW_RX" },
{ 0, NULL }
};
static dissector_handle_t eth_withoutfcs_handle;
#define CL_FP 0x01
#define CL_FR 0x02
#define CL_DFD 0x04
#define CL_RSS 0x08
#define CL_RSSH 0x10
#define CL_RES 0xE0
static void
dissect_nstrace(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree)
{
proto_tree *ns_tree = NULL, *flagtree = NULL;
proto_item *ti = NULL, *flagitem = NULL;
struct nstr_phdr *pnstr = &(pinfo->pseudo_header->nstr);
tvbuff_t *next_tvb_eth_client;
guint8 offset;
guint i, bpos;
emem_strbuf_t *flags_strbuf = ep_strbuf_new_label("None");
const gchar *flags[] = {"FP", "FR", "DFD", "SRSS", "RSSH"};
gboolean first_flag = TRUE;
guint8 flagoffset, flagval;
guint8 src_vmname_len = 0, dst_vmname_len = 0;
guint8 variable_ns_len = 0;
if (pnstr->rec_type == NSPR_HEADER_VERSION205)
{
src_vmname_len = tvb_get_guint8(tvb,pnstr->src_vmname_len_offset);
dst_vmname_len = tvb_get_guint8(tvb,pnstr->dst_vmname_len_offset);
variable_ns_len = src_vmname_len + dst_vmname_len;
pnstr->eth_offset += variable_ns_len;
}
ti = proto_tree_add_protocol_format(tree, proto_nstrace, tvb, 0, pnstr->eth_offset, "NetScaler Packet Trace");
ns_tree = proto_item_add_subtree(ti, ett_ns);
proto_tree_add_item(ns_tree, hf_ns_dir, tvb, pnstr->dir_offset, pnstr->dir_len, ENC_LITTLE_ENDIAN);
proto_tree_add_item(ns_tree, hf_ns_nicno, tvb, pnstr->nicno_offset, pnstr->nicno_len, ENC_LITTLE_ENDIAN);
switch (pnstr->rec_type)
{
case NSPR_HEADER_VERSION205:
if(src_vmname_len){
proto_tree_add_item(ns_tree,hf_ns_src_vm,tvb,pnstr->data_offset,src_vmname_len,ENC_LITTLE_ENDIAN);
}
if(dst_vmname_len){
proto_tree_add_item(ns_tree,hf_ns_dst_vm,tvb,pnstr->data_offset+src_vmname_len,dst_vmname_len,ENC_LITTLE_ENDIAN);
}
case NSPR_HEADER_VERSION204:
flagoffset = pnstr->clflags_offset;
flagval = tvb_get_guint8(tvb, flagoffset);
for (i = 0; i < 5; i++) {
bpos = 1 << i;
if (flagval & bpos) {
if (first_flag) {
ep_strbuf_truncate(flags_strbuf, 0);
}
ep_strbuf_append_printf(flags_strbuf, "%s%s", first_flag ? "" : ", ", flags[i]);
first_flag = FALSE;
}
}
proto_tree_add_item(ns_tree, hf_ns_snode, tvb, pnstr->srcnodeid_offset, 2, ENC_LITTLE_ENDIAN);
proto_tree_add_item(ns_tree, hf_ns_dnode, tvb, pnstr->destnodeid_offset, 2, ENC_LITTLE_ENDIAN);
flagitem = proto_tree_add_uint_format(ns_tree, hf_ns_clflags, tvb, flagoffset, 1, flagval,
"Cluster Flags: 0x%02x (%s)", flagval, flags_strbuf->str);
flagtree = proto_item_add_subtree(flagitem, ett_ns_flags);
proto_tree_add_boolean(flagtree, hf_ns_clflags_res, tvb, flagoffset, 1, flagval);
proto_tree_add_boolean(flagtree, hf_ns_clflags_rssh, tvb, flagoffset, 1, flagval);
proto_tree_add_boolean(flagtree, hf_ns_clflags_rss, tvb, flagoffset, 1, flagval);
proto_tree_add_boolean(flagtree, hf_ns_clflags_dfd, tvb, flagoffset, 1, flagval);
proto_tree_add_boolean(flagtree, hf_ns_clflags_fr, tvb, flagoffset, 1, flagval);
proto_tree_add_boolean(flagtree, hf_ns_clflags_fp, tvb, flagoffset, 1, flagval);
case NSPR_HEADER_VERSION203:
proto_tree_add_item(ns_tree, hf_ns_coreid, tvb, pnstr->coreid_offset, 2, ENC_LITTLE_ENDIAN);
/* fall through to next case */
case NSPR_HEADER_VERSION202:
col_add_fstr(pinfo->cinfo, COL_8021Q_VLAN_ID, "%d", tvb_get_letohs(tvb, pnstr->vlantag_offset));
proto_tree_add_item(ns_tree, hf_ns_vlantag, tvb, pnstr->vlantag_offset, 2, ENC_LITTLE_ENDIAN);
/* fall through to next case */
case NSPR_HEADER_VERSION201:
proto_tree_add_item(ns_tree, hf_ns_pcbdevno, tvb, pnstr->pcb_offset, 4, ENC_LITTLE_ENDIAN);
ti = proto_tree_add_item(ns_tree, hf_ns_devno, tvb, pnstr->pcb_offset, 4, ENC_LITTLE_ENDIAN);
PROTO_ITEM_SET_HIDDEN(ti);
proto_tree_add_item(ns_tree, hf_ns_l_pcbdevno, tvb, pnstr->l_pcb_offset, 4, ENC_LITTLE_ENDIAN);
ti = proto_tree_add_item(ns_tree, hf_ns_devno, tvb, pnstr->l_pcb_offset, 4, ENC_LITTLE_ENDIAN);
PROTO_ITEM_SET_HIDDEN(ti);
break;
default:
break;
}
/* Dissect as Ethernet */
offset = pnstr->eth_offset;
next_tvb_eth_client = tvb_new_subset_remaining(tvb, offset);
call_dissector(eth_withoutfcs_handle, next_tvb_eth_client, pinfo, tree);
}
void
proto_register_ns(void)
{
static hf_register_info hf[] = {
{ &hf_ns_nicno,
{ "Nic No", "nstrace.nicno", FT_UINT8, BASE_DEC,NULL, 0x0,
NULL, HFILL }},
{ &hf_ns_src_vm,
{ "Src Vm Name", "nstrace.src_vm", FT_STRINGZ, BASE_NONE,NULL, 0x0,
NULL, HFILL }},
{ &hf_ns_dst_vm,
{ "Dst Vm Name", "nstrace.dst_vm", FT_STRINGZ, BASE_NONE,NULL, 0x0,
NULL, HFILL }},
{ &hf_ns_coreid,
{ "Core Id", "nstrace.coreid", FT_UINT16, BASE_DEC,NULL, 0x0,
NULL, HFILL }},
{ &hf_ns_dir,
{ "Operation", "nstrace.dir", FT_UINT8, BASE_HEX, VALS(ns_dir_vals), 0x0,
NULL, HFILL }},
{ &hf_ns_pcbdevno,
{ "PcbDevNo", "nstrace.pdevno", FT_UINT32, BASE_HEX, NULL, 0x0,
NULL, HFILL }},
{ &hf_ns_l_pcbdevno,
{ "Linked PcbDevNo", "nstrace.l_pdevno", FT_UINT32, BASE_HEX, NULL, 0x0,
NULL, HFILL }},
{ &hf_ns_devno,
{ "DevNo", "nstrace.devno", FT_UINT32, BASE_HEX, NULL, 0x0,
NULL, HFILL }},
{ &hf_ns_vlantag,
{ "Vlan", "nstrace.vlan", FT_UINT16, BASE_DEC, NULL, 0x0,
NULL, HFILL }},
{ &hf_ns_snode,
{ "Source Node", "nstrace.snode", FT_INT16, BASE_DEC, NULL, 0x0,
NULL, HFILL }},
{ &hf_ns_dnode,
{ "Destination Node", "nstrace.dnode", FT_INT16, BASE_DEC, NULL, 0x0,
NULL, HFILL }},
{ &hf_ns_clflags,
{ "Cluster Flags", "nstrace.flags", FT_UINT8, BASE_HEX, NULL, 0x0,
NULL, HFILL }},
{ &hf_ns_clflags_res,
{ "Reserved", "nstrace.flags.res", FT_BOOLEAN, 8, TFS(&tfs_set_notset), CL_RES,
NULL, HFILL}},
{ &hf_ns_clflags_rssh,
{ "RSSHASH", "nstrace.flags.rssh", FT_BOOLEAN, 8, TFS(&tfs_set_notset), CL_RSSH,
NULL, HFILL}},
{ &hf_ns_clflags_rss,
{ "SRSS", "nstrace.flags.srss", FT_BOOLEAN, 8, TFS(&tfs_set_notset), CL_RSS,
NULL, HFILL}},
{ &hf_ns_clflags_dfd,
{ "DFD", "nstrace.flags.dfd", FT_BOOLEAN, 8, TFS(&tfs_set_notset), CL_DFD,
NULL, HFILL}},
{ &hf_ns_clflags_fr,
{ "Flow receiver (FR)", "nstrace.flags.fr", FT_BOOLEAN, 8, TFS(&tfs_set_notset), CL_FR,
NULL, HFILL}},
{ &hf_ns_clflags_fp,
{ "Flow processor (FP)", "nstrace.flags.fp", FT_BOOLEAN, 8, TFS(&tfs_set_notset), CL_FP,
NULL, HFILL}},
};
static gint *ett[] = {
&ett_ns,
&ett_ns_flags,
};
proto_nstrace = proto_register_protocol("NetScaler Trace", "NS Trace", "ns");
proto_register_field_array(proto_nstrace, hf, array_length(hf));
proto_register_subtree_array(ett, array_length(ett));
}
void proto_reg_handoff_ns(void)
{
dissector_handle_t nstrace_handle;
eth_withoutfcs_handle = find_dissector("eth_withoutfcs");
nstrace_handle = create_dissector_handle(dissect_nstrace, proto_nstrace);
dissector_add_uint("wtap_encap", WTAP_ENCAP_NSTRACE_1_0, nstrace_handle);
dissector_add_uint("wtap_encap", WTAP_ENCAP_NSTRACE_2_0, nstrace_handle);
}
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