/src/wireshark/epan/dissectors/packet-hpsw.c

Source (jump to first uncovered line)
/* packet-hpsw.c
 * Routines for HP Switch Config protocol
 * Charlie Lenahan <clenahan@fortresstech.com>
 *
 * Wireshark - Network traffic analyzer
 * By Gerald Combs <gerald@wireshark.org>
 * Copyright 1998 Gerald Combs
 *
 * SPDX-License-Identifier: GPL-2.0-or-later
 */

#include "config.h"

#include <epan/packet.h>
#include <epan/expert.h>

#include "packet-hpext.h"

void proto_register_hpsw(void);
void proto_reg_handoff_hpsw(void);

static int proto_hpsw;

static int hf_hpsw_version;
static int hf_hpsw_type;
static int hf_hpsw_tlvtype;
static int hf_hpsw_tlvlength;
static int hf_hpsw_field_10;
static int hf_hpsw_own_mac_addr;
static int hf_hpsw_neighbor_mac_addr;
static int hf_hpsw_field_6;
static int hf_hpsw_field_9;
static int hf_hpsw_device_version;
static int hf_hpsw_device_name;
static int hf_hpsw_ip_addr;
static int hf_hpsw_field_8;
static int hf_hpsw_domain;
static int hf_hpsw_field_12;
static int hf_hpsw_config_name;
static int hf_hpsw_root_mac_addr;
static int hf_hpsw_device_id;
static int hf_hpsw_device_id_data;
static int hf_hpsw_data;


static int ett_hpsw;
static int ett_hpsw_tlv;

static expert_field ei_hpsw_tlvlength_bad;

static dissector_handle_t hpsw_handle;

#define HPFOO_DEVICE_NAME     0x1
#define HPFOO_DEVICE_VERSION  0x2
#define HPFOO_CONFIG_NAME     0x3
#define HPFOO_ROOT_MAC_ADDR   0x4
#define HPFOO_IP_ADDR         0x5
#define HPFOO_FIELD_6         0x6
#define HPFOO_DOMAIN          0x7
#define HPFOO_FIELD_8         0x8
#define HPFOO_FIELD_9         0x9
#define HPFOO_FIELD_10        0xa
#define HPFOO_NEIGHBORS       0xb
#define HPFOO_FIELD_12        0xc
#define HPFOO_DEVICE_ID       0xd
#define HPFOO_OWN_MAC_ADDR    0xe

static const value_string hpsw_tlv_type_vals[] = {
    { HPFOO_DEVICE_NAME,    "Device Name" },
    { HPFOO_DEVICE_VERSION, "Version" },
    { HPFOO_CONFIG_NAME,    "Config Name" },
    { HPFOO_ROOT_MAC_ADDR,  "Root MAC Addr" },
    { HPFOO_IP_ADDR,        "IP Addr" },
    { HPFOO_FIELD_6,        "Field 6" },
    { HPFOO_DOMAIN,         "Domain" },
    { HPFOO_FIELD_8,        "Field 8" },
    { HPFOO_FIELD_9,        "Field 9" },
    { HPFOO_FIELD_10,       "Field 10" },
    { HPFOO_NEIGHBORS,      "Neighbors" },
    { HPFOO_FIELD_12,       "Field 12" },
    { HPFOO_DEVICE_ID,      "Device ID" },
    { HPFOO_OWN_MAC_ADDR,   "2nd MAC Addr" },
    { 0x00,                 NULL }
};

static void
dissect_hpsw_tlv(tvbuff_t *tvb, packet_info *pinfo, int offset, int length,
                 proto_tree *tree, proto_item *ti, uint8_t type)
{
    switch (type) {

    case HPFOO_DEVICE_NAME:
        if (length > 0) {
            proto_tree_add_item(tree, hf_hpsw_device_name, tvb, offset, length, ENC_NA|ENC_ASCII);
        } else {
            expert_add_info_format(pinfo, ti, &ei_hpsw_tlvlength_bad, "Device Name: Bad length %u", length);
        }
        break;

    case HPFOO_DEVICE_VERSION:
        if (length > 0) {
            proto_tree_add_item(tree, hf_hpsw_device_version, tvb, offset, length, ENC_NA|ENC_ASCII);
        } else {
            expert_add_info_format(pinfo, ti, &ei_hpsw_tlvlength_bad, "Version: Bad length %u", length);
        }
        break;

    case HPFOO_CONFIG_NAME:
        if (length > 0) {
            proto_tree_add_item(tree, hf_hpsw_config_name, tvb, offset, length, ENC_NA|ENC_ASCII);
        } else {
            expert_add_info_format(pinfo, ti, &ei_hpsw_tlvlength_bad, "Config Name: Bad length %u", length);
        }
        break;

    case HPFOO_ROOT_MAC_ADDR:
        if (length == 6) {
            proto_tree_add_item(tree, hf_hpsw_root_mac_addr, tvb, offset, length, ENC_NA);
        } else {
            expert_add_info_format(pinfo, ti, &ei_hpsw_tlvlength_bad, "Root MAC Addr: Bad length %u", length);
        }
        break;

    case HPFOO_IP_ADDR:
        if (length == 4) {
            proto_tree_add_item(tree, hf_hpsw_ip_addr, tvb, offset, length, ENC_BIG_ENDIAN);
        } else {
            expert_add_info_format(pinfo, ti, &ei_hpsw_tlvlength_bad, "IP Addr: Bad length %u", length);
        }
        break;

    case HPFOO_FIELD_6:
        if (length == 2) {
            proto_tree_add_item(tree, hf_hpsw_field_6, tvb, offset, length, ENC_BIG_ENDIAN);
        } else {
            expert_add_info_format(pinfo, ti, &ei_hpsw_tlvlength_bad, "Field 6: Bad length %u", length);
        }
        break;

    case HPFOO_DOMAIN:
        if (length > 0) {
            proto_tree_add_item(tree, hf_hpsw_domain, tvb, offset, length, ENC_NA|ENC_ASCII);
        } else {
            expert_add_info_format(pinfo, ti, &ei_hpsw_tlvlength_bad, "Domain: Bad length %u", length);
        }
        break;

    case HPFOO_FIELD_8:
        if (length == 2) {
            proto_tree_add_item(tree, hf_hpsw_field_8, tvb, offset, length, ENC_BIG_ENDIAN);
        } else {
            expert_add_info_format(pinfo, ti, &ei_hpsw_tlvlength_bad, "Field 8: Bad length %u", length);
        }
        break;

    case HPFOO_FIELD_9:
        if (length == 2) {
            proto_tree_add_item(tree, hf_hpsw_field_9, tvb, offset, length, ENC_BIG_ENDIAN);
        } else {
            expert_add_info_format(pinfo, ti, &ei_hpsw_tlvlength_bad, "Field 9: Bad length %u", length);
        }
        break;

    case HPFOO_FIELD_10:
        if (length == 4) {
            proto_tree_add_item(tree, hf_hpsw_field_10, tvb, offset, length, ENC_BIG_ENDIAN);
        } else {
            expert_add_info_format(pinfo, ti, &ei_hpsw_tlvlength_bad, "Field 10: Bad length %u", length);
        }
        break;

    case HPFOO_NEIGHBORS:
        if (!(length % 6))
        {   int i = length/6;
            proto_item_set_text(proto_tree_get_parent(tree), "Number of neighbor MAC Addresses: %u", i);
            for ( ; i; i--)
            {
                proto_tree_add_item(tree, hf_hpsw_neighbor_mac_addr, tvb, offset, 6, ENC_NA);
                offset += 6;
            }
        } else {
            expert_add_info_format(pinfo, ti, &ei_hpsw_tlvlength_bad, "Neighbors: Bad length %u", length);
        }
        break;

    case HPFOO_FIELD_12:
        if (length == 1) {
            proto_tree_add_item(tree, hf_hpsw_field_12, tvb, offset, length, ENC_BIG_ENDIAN);
        } else {
            expert_add_info_format(pinfo, ti, &ei_hpsw_tlvlength_bad, "Field 12: Bad length %u", length);
        }
        break;

    case HPFOO_DEVICE_ID:
        if (length > 6) {
            proto_tree_add_item(tree, hf_hpsw_device_id, tvb, offset, 6, ENC_NA);
            proto_tree_add_item(tree, hf_hpsw_device_id_data, tvb, offset+6, length-6, ENC_NA);
        } else {
            expert_add_info_format(pinfo, ti, &ei_hpsw_tlvlength_bad, "Device ID: Bad length %u", length);
        }
        break;

    case HPFOO_OWN_MAC_ADDR:
        if (length == 6) {
            proto_tree_add_item(tree, hf_hpsw_own_mac_addr, tvb, offset, length, ENC_NA);
        } else {
            expert_add_info_format(pinfo, ti, &ei_hpsw_tlvlength_bad, "Own MAC Addr: Bad length %u", length);
        }
        break;

    default:
        proto_tree_add_item(tree, hf_hpsw_data, tvb, offset, length, ENC_NA);
        break;
    }
}

static int
dissect_hpsw(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, void* data _U_)
{
    proto_tree *hp_tree;
    proto_tree *tlv_tree;
    proto_item *ti;
    uint8_t     version;
    int         offset = 0;

    col_set_str(pinfo->cinfo, COL_PROTOCOL, "HP");
    col_set_str(pinfo->cinfo, COL_INFO, "HP Switch Protocol");

    version = tvb_get_uint8(tvb, 0);

    ti = proto_tree_add_item(tree, proto_hpsw, tvb, 0, -1, ENC_NA);
    hp_tree = proto_item_add_subtree(ti, ett_hpsw);
    proto_tree_add_uint(hp_tree, hf_hpsw_version, tvb, 0, 1, version);
    offset += 1;

    proto_tree_add_item(hp_tree, hf_hpsw_type, tvb, 1, 1, ENC_BIG_ENDIAN);
    offset += 1;

    while ( tvb_reported_length_remaining(tvb, offset) > 0 )
    {
        uint8_t type, length;

        type   = tvb_get_uint8(tvb, offset);
        length = tvb_get_uint8(tvb, offset+1);

        /* make sure still in valid tlv */
        if (( length < 1 ) || ( length > tvb_reported_length_remaining(tvb, offset+2)))
            break;

        tlv_tree = proto_tree_add_subtree(hp_tree, tvb, offset, length+2, ett_hpsw_tlv, NULL,
                                 val_to_str(type, hpsw_tlv_type_vals, "Unknown TLV type: 0x%02x"));

        /* type */
        proto_tree_add_uint(tlv_tree, hf_hpsw_tlvtype, tvb, offset, 1, type);
        offset += 1;

        /* LENGTH (not inclusive of type and length bytes) */
        ti = proto_tree_add_uint(tlv_tree, hf_hpsw_tlvlength, tvb, offset, 1, length);
        offset += 1;

        dissect_hpsw_tlv(tvb, pinfo, offset, length, tlv_tree, ti, type);

        offset += length;

    }
    return tvb_captured_length(tvb);
}

void
proto_register_hpsw(void)
{
    static hf_register_info hf[] = {
        { &hf_hpsw_version,
          { "Version", "hpsw.version", FT_UINT8, BASE_HEX,
            NULL, 0x0, NULL, HFILL }},
        { &hf_hpsw_type,
          { "Type", "hpsw.type", FT_UINT8, BASE_HEX,
            NULL, 0x0, NULL, HFILL }},
        { &hf_hpsw_tlvtype,
          { "Type", "hpsw.tlv_type", FT_UINT8, BASE_HEX,
            VALS(hpsw_tlv_type_vals), 0x0, NULL, HFILL }},
        { &hf_hpsw_tlvlength,
          { "Length", "hpsw.tlv_len", FT_UINT8, BASE_DEC,
            NULL, 0x0, NULL, HFILL }},
        { &hf_hpsw_device_name,
          { "Device Name", "hpsw.device_name", FT_STRING, BASE_NONE,
            NULL, 0x0, NULL, HFILL }},
        { &hf_hpsw_device_version,
          { "Version", "hpsw.device_version", FT_STRING, BASE_NONE,
            NULL, 0x0, NULL, HFILL }},
        { &hf_hpsw_config_name,
          { "Config Name", "hpsw.config_name", FT_STRING, BASE_NONE,
            NULL, 0x0, NULL, HFILL }},
        { &hf_hpsw_root_mac_addr,
          { "Root MAC Addr", "hpsw.root_mac_addr", FT_ETHER, BASE_NONE,
            NULL, 0x0, NULL, HFILL }},
        { &hf_hpsw_ip_addr,
          { "IP Addr", "hpsw.ip_addr", FT_IPv4, BASE_NONE,
            NULL, 0x0, NULL, HFILL }},
        { &hf_hpsw_field_6,
          { "Field 6", "hpsw.field_6", FT_UINT16, BASE_HEX,
            NULL, 0x0, NULL, HFILL }},
        { &hf_hpsw_domain,
          { "Domain", "hpsw.domain", FT_STRING, BASE_NONE,
            NULL, 0x0, NULL, HFILL }},
        { &hf_hpsw_field_8,
          { "Field 8", "hpsw.field_8", FT_UINT16, BASE_HEX,
            NULL, 0x0, NULL, HFILL }},
        { &hf_hpsw_field_9,
          { "Field 9", "hpsw.field_9", FT_UINT16, BASE_HEX,
            NULL, 0x0, NULL, HFILL }},
        { &hf_hpsw_field_10,
          { "Field 10", "hpsw.field_10", FT_UINT32, BASE_HEX,
            NULL, 0x0, NULL, HFILL }},
        { &hf_hpsw_neighbor_mac_addr,
          { "MAC Addr", "hpsw.neighbor_mac_addr", FT_ETHER, BASE_NONE,
            NULL, 0x0, NULL, HFILL }},
        { &hf_hpsw_field_12,
          { "Field 12", "hpsw.field_12", FT_UINT8, BASE_HEX,
            NULL, 0x0, NULL, HFILL }},
        { &hf_hpsw_own_mac_addr,
          { "Own MAC Addr", "hpsw.own_mac_addr", FT_ETHER, BASE_NONE,
            NULL, 0x0, NULL, HFILL }},
        { &hf_hpsw_device_id,
          { "Device ID", "hpsw.device_id", FT_ETHER, BASE_NONE,
            NULL, 0x0, NULL, HFILL }},
        { &hf_hpsw_device_id_data,
          { "Data", "hpsw.device_id_data", FT_BYTES, BASE_NONE,
            NULL, 0x0, NULL, HFILL }},
        { &hf_hpsw_data,
          { "Data", "hpsw.data", FT_BYTES, BASE_NONE,
            NULL, 0x0, NULL, HFILL }},
    };

    static int *ett[] = {
        &ett_hpsw,
        &ett_hpsw_tlv
    };

    static ei_register_info ei[] = {
        { &ei_hpsw_tlvlength_bad, { "hpsw.tlv_len.bad", PI_PROTOCOL, PI_WARN, "Bad length", EXPFILL }},
    };

    expert_module_t* expert_hpsw;

    proto_hpsw = proto_register_protocol( "HP Switch Protocol", "HPSW", "hpsw");
    proto_register_field_array(proto_hpsw, hf, array_length(hf));
    proto_register_subtree_array(ett, array_length(ett));
    expert_hpsw = expert_register_protocol(proto_hpsw);
    expert_register_field_array(expert_hpsw, ei, array_length(ei));

    hpsw_handle = register_dissector("hpsw", dissect_hpsw, proto_hpsw);
}

void
proto_reg_handoff_hpsw(void)
{
    dissector_add_uint("hpext.dxsap", HPEXT_HPSW, hpsw_handle);
}

/*
 * Editor modelines
 *
 * Local Variables:
 * c-basic-offset: 4
 * tab-width: 8
 * indent-tabs-mode: nil
 * End:
 *
 * ex: set shiftwidth=4 tabstop=8 expandtab:
 * :indentSize=4:tabSize=8:noTabs=true:
 */

Coverage Report

Created: 2025-02-15 06:25

Line	Count	Source (jump to first uncovered line)
1		/* packet-hpsw.c
2		* Routines for HP Switch Config protocol
3		* Charlie Lenahan <clenahan@fortresstech.com>
4		*
5		* Wireshark - Network traffic analyzer
6		* By Gerald Combs <gerald@wireshark.org>
7		* Copyright 1998 Gerald Combs
8		*
9		* SPDX-License-Identifier: GPL-2.0-or-later
10		*/
11
12		#include "config.h"
13
14		#include <epan/packet.h>
15		#include <epan/expert.h>
16
17		#include "packet-hpext.h"
18
19		void proto_register_hpsw(void);
20		void proto_reg_handoff_hpsw(void);
21
22		static int proto_hpsw;
23
24		static int hf_hpsw_version;
25		static int hf_hpsw_type;
26		static int hf_hpsw_tlvtype;
27		static int hf_hpsw_tlvlength;
28		static int hf_hpsw_field_10;
29		static int hf_hpsw_own_mac_addr;
30		static int hf_hpsw_neighbor_mac_addr;
31		static int hf_hpsw_field_6;
32		static int hf_hpsw_field_9;
33		static int hf_hpsw_device_version;
34		static int hf_hpsw_device_name;
35		static int hf_hpsw_ip_addr;
36		static int hf_hpsw_field_8;
37		static int hf_hpsw_domain;
38		static int hf_hpsw_field_12;
39		static int hf_hpsw_config_name;
40		static int hf_hpsw_root_mac_addr;
41		static int hf_hpsw_device_id;
42		static int hf_hpsw_device_id_data;
43		static int hf_hpsw_data;
44
45
46		static int ett_hpsw;
47		static int ett_hpsw_tlv;
48
49		static expert_field ei_hpsw_tlvlength_bad;
50
51		static dissector_handle_t hpsw_handle;
52
53	15	#define HPFOO_DEVICE_NAME 0x1
54	0	#define HPFOO_DEVICE_VERSION 0x2
55	1	#define HPFOO_CONFIG_NAME 0x3
56	3	#define HPFOO_ROOT_MAC_ADDR 0x4
57	0	#define HPFOO_IP_ADDR 0x5
58	0	#define HPFOO_FIELD_6 0x6
59	0	#define HPFOO_DOMAIN 0x7
60	1	#define HPFOO_FIELD_8 0x8
61	14	#define HPFOO_FIELD_9 0x9
62	0	#define HPFOO_FIELD_10 0xa
63	7	#define HPFOO_NEIGHBORS 0xb
64	19	#define HPFOO_FIELD_12 0xc
65	8	#define HPFOO_DEVICE_ID 0xd
66	4	#define HPFOO_OWN_MAC_ADDR 0xe
67
68		static const value_string hpsw_tlv_type_vals[] = {
69		{ HPFOO_DEVICE_NAME, "Device Name" },
70		{ HPFOO_DEVICE_VERSION, "Version" },
71		{ HPFOO_CONFIG_NAME, "Config Name" },
72		{ HPFOO_ROOT_MAC_ADDR, "Root MAC Addr" },
73		{ HPFOO_IP_ADDR, "IP Addr" },
74		{ HPFOO_FIELD_6, "Field 6" },
75		{ HPFOO_DOMAIN, "Domain" },
76		{ HPFOO_FIELD_8, "Field 8" },
77		{ HPFOO_FIELD_9, "Field 9" },
78		{ HPFOO_FIELD_10, "Field 10" },
79		{ HPFOO_NEIGHBORS, "Neighbors" },
80		{ HPFOO_FIELD_12, "Field 12" },
81		{ HPFOO_DEVICE_ID, "Device ID" },
82		{ HPFOO_OWN_MAC_ADDR, "2nd MAC Addr" },
83		{ 0x00, NULL }
84		};
85
86		static void
87		dissect_hpsw_tlv(tvbuff_t tvb, packet_info pinfo, int offset, int length,
88		proto_tree tree, proto_item ti, uint8_t type)
89	128	{
90	128	switch (type) {
91
92	15	case HPFOO_DEVICE_NAME:
93	15	if (length > 0) {
94	15	proto_tree_add_item(tree, hf_hpsw_device_name, tvb, offset, length, ENC_NA\|ENC_ASCII);
95	15	} else {
96	0	expert_add_info_format(pinfo, ti, &ei_hpsw_tlvlength_bad, "Device Name: Bad length %u", length);
97	0	}
98	15	break;
99
100	0	case HPFOO_DEVICE_VERSION:
101	0	if (length > 0) {
102	0	proto_tree_add_item(tree, hf_hpsw_device_version, tvb, offset, length, ENC_NA\|ENC_ASCII);
103	0	} else {
104	0	expert_add_info_format(pinfo, ti, &ei_hpsw_tlvlength_bad, "Version: Bad length %u", length);
105	0	}
106	0	break;
107
108	1	case HPFOO_CONFIG_NAME:
109	1	if (length > 0) {
110	1	proto_tree_add_item(tree, hf_hpsw_config_name, tvb, offset, length, ENC_NA\|ENC_ASCII);
111	1	} else {
112	0	expert_add_info_format(pinfo, ti, &ei_hpsw_tlvlength_bad, "Config Name: Bad length %u", length);
113	0	}
114	1	break;
115
116	3	case HPFOO_ROOT_MAC_ADDR:
117	3	if (length == 6) {
118	0	proto_tree_add_item(tree, hf_hpsw_root_mac_addr, tvb, offset, length, ENC_NA);
119	3	} else {
120	3	expert_add_info_format(pinfo, ti, &ei_hpsw_tlvlength_bad, "Root MAC Addr: Bad length %u", length);
121	3	}
122	3	break;
123
124	0	case HPFOO_IP_ADDR:
125	0	if (length == 4) {
126	0	proto_tree_add_item(tree, hf_hpsw_ip_addr, tvb, offset, length, ENC_BIG_ENDIAN);
127	0	} else {
128	0	expert_add_info_format(pinfo, ti, &ei_hpsw_tlvlength_bad, "IP Addr: Bad length %u", length);
129	0	}
130	0	break;
131
132	0	case HPFOO_FIELD_6:
133	0	if (length == 2) {
134	0	proto_tree_add_item(tree, hf_hpsw_field_6, tvb, offset, length, ENC_BIG_ENDIAN);
135	0	} else {
136	0	expert_add_info_format(pinfo, ti, &ei_hpsw_tlvlength_bad, "Field 6: Bad length %u", length);
137	0	}
138	0	break;
139
140	0	case HPFOO_DOMAIN:
141	0	if (length > 0) {
142	0	proto_tree_add_item(tree, hf_hpsw_domain, tvb, offset, length, ENC_NA\|ENC_ASCII);
143	0	} else {
144	0	expert_add_info_format(pinfo, ti, &ei_hpsw_tlvlength_bad, "Domain: Bad length %u", length);
145	0	}
146	0	break;
147
148	1	case HPFOO_FIELD_8:
149	1	if (length == 2) {
150	0	proto_tree_add_item(tree, hf_hpsw_field_8, tvb, offset, length, ENC_BIG_ENDIAN);
151	1	} else {
152	1	expert_add_info_format(pinfo, ti, &ei_hpsw_tlvlength_bad, "Field 8: Bad length %u", length);
153	1	}
154	1	break;
155
156	14	case HPFOO_FIELD_9:
157	14	if (length == 2) {
158	0	proto_tree_add_item(tree, hf_hpsw_field_9, tvb, offset, length, ENC_BIG_ENDIAN);
159	14	} else {
160	14	expert_add_info_format(pinfo, ti, &ei_hpsw_tlvlength_bad, "Field 9: Bad length %u", length);
161	14	}
162	14	break;
163
164	0	case HPFOO_FIELD_10:
165	0	if (length == 4) {
166	0	proto_tree_add_item(tree, hf_hpsw_field_10, tvb, offset, length, ENC_BIG_ENDIAN);
167	0	} else {
168	0	expert_add_info_format(pinfo, ti, &ei_hpsw_tlvlength_bad, "Field 10: Bad length %u", length);
169	0	}
170	0	break;
171
172	7	case HPFOO_NEIGHBORS:
173	7	if (!(length % 6))
174	0	{ int i = length/6;
175	0	proto_item_set_text(proto_tree_get_parent(tree), "Number of neighbor MAC Addresses: %u", i);
176	0	for ( ; i; i--)
177	0	{
178	0	proto_tree_add_item(tree, hf_hpsw_neighbor_mac_addr, tvb, offset, 6, ENC_NA);
179	0	offset += 6;
180	0	}
181	7	} else {
182	7	expert_add_info_format(pinfo, ti, &ei_hpsw_tlvlength_bad, "Neighbors: Bad length %u", length);
183	7	}
184	7	break;
185
186	19	case HPFOO_FIELD_12:
187	19	if (length == 1) {
188	0	proto_tree_add_item(tree, hf_hpsw_field_12, tvb, offset, length, ENC_BIG_ENDIAN);
189	19	} else {
190	19	expert_add_info_format(pinfo, ti, &ei_hpsw_tlvlength_bad, "Field 12: Bad length %u", length);
191	19	}
192	19	break;
193
194	8	case HPFOO_DEVICE_ID:
195	8	if (length > 6) {
196	8	proto_tree_add_item(tree, hf_hpsw_device_id, tvb, offset, 6, ENC_NA);
197	8	proto_tree_add_item(tree, hf_hpsw_device_id_data, tvb, offset+6, length-6, ENC_NA);
198	8	} else {
199	0	expert_add_info_format(pinfo, ti, &ei_hpsw_tlvlength_bad, "Device ID: Bad length %u", length);
200	0	}
201	8	break;
202
203	4	case HPFOO_OWN_MAC_ADDR:
204	4	if (length == 6) {
205	0	proto_tree_add_item(tree, hf_hpsw_own_mac_addr, tvb, offset, length, ENC_NA);
206	4	} else {
207	4	expert_add_info_format(pinfo, ti, &ei_hpsw_tlvlength_bad, "Own MAC Addr: Bad length %u", length);
208	4	}
209	4	break;
210
211	56	default:
212	56	proto_tree_add_item(tree, hf_hpsw_data, tvb, offset, length, ENC_NA);
213	56	break;
214	128	}
215	128	}
216
217		static int
218		dissect_hpsw(tvbuff_t tvb, packet_info pinfo, proto_tree tree, void data _U_)
219	19	{
220	19	proto_tree *hp_tree;
221	19	proto_tree *tlv_tree;
222	19	proto_item *ti;
223	19	uint8_t version;
224	19	int offset = 0;
225
226	19	col_set_str(pinfo->cinfo, COL_PROTOCOL, "HP");
227	19	col_set_str(pinfo->cinfo, COL_INFO, "HP Switch Protocol");
228
229	19	version = tvb_get_uint8(tvb, 0);
230
231	19	ti = proto_tree_add_item(tree, proto_hpsw, tvb, 0, -1, ENC_NA);
232	19	hp_tree = proto_item_add_subtree(ti, ett_hpsw);
233	19	proto_tree_add_uint(hp_tree, hf_hpsw_version, tvb, 0, 1, version);
234	19	offset += 1;
235
236	19	proto_tree_add_item(hp_tree, hf_hpsw_type, tvb, 1, 1, ENC_BIG_ENDIAN);
237	19	offset += 1;
238
239	147	while ( tvb_reported_length_remaining(tvb, offset) > 0 )
240	145	{
241	145	uint8_t type, length;
242
243	145	type = tvb_get_uint8(tvb, offset);
244	145	length = tvb_get_uint8(tvb, offset+1);
245
246		/* make sure still in valid tlv */
247	145	if (( length < 1 ) \|\| ( length > tvb_reported_length_remaining(tvb, offset+2)))
248	17	break;
249
250	128	tlv_tree = proto_tree_add_subtree(hp_tree, tvb, offset, length+2, ett_hpsw_tlv, NULL,
251	128	val_to_str(type, hpsw_tlv_type_vals, "Unknown TLV type: 0x%02x"));
252
253		/* type */
254	128	proto_tree_add_uint(tlv_tree, hf_hpsw_tlvtype, tvb, offset, 1, type);
255	128	offset += 1;
256
257		/* LENGTH (not inclusive of type and length bytes) */
258	128	ti = proto_tree_add_uint(tlv_tree, hf_hpsw_tlvlength, tvb, offset, 1, length);
259	128	offset += 1;
260
261	128	dissect_hpsw_tlv(tvb, pinfo, offset, length, tlv_tree, ti, type);
262
263	128	offset += length;
264
265	128	}
266	19	return tvb_captured_length(tvb);
267	19	}
268
269		void
270		proto_register_hpsw(void)
271	14	{
272	14	static hf_register_info hf[] = {
273	14	{ &hf_hpsw_version,
274	14	{ "Version", "hpsw.version", FT_UINT8, BASE_HEX,
275	14	NULL, 0x0, NULL, HFILL }},
276	14	{ &hf_hpsw_type,
277	14	{ "Type", "hpsw.type", FT_UINT8, BASE_HEX,
278	14	NULL, 0x0, NULL, HFILL }},
279	14	{ &hf_hpsw_tlvtype,
280	14	{ "Type", "hpsw.tlv_type", FT_UINT8, BASE_HEX,
281	14	VALS(hpsw_tlv_type_vals), 0x0, NULL, HFILL }},
282	14	{ &hf_hpsw_tlvlength,
283	14	{ "Length", "hpsw.tlv_len", FT_UINT8, BASE_DEC,
284	14	NULL, 0x0, NULL, HFILL }},
285	14	{ &hf_hpsw_device_name,
286	14	{ "Device Name", "hpsw.device_name", FT_STRING, BASE_NONE,
287	14	NULL, 0x0, NULL, HFILL }},
288	14	{ &hf_hpsw_device_version,
289	14	{ "Version", "hpsw.device_version", FT_STRING, BASE_NONE,
290	14	NULL, 0x0, NULL, HFILL }},
291	14	{ &hf_hpsw_config_name,
292	14	{ "Config Name", "hpsw.config_name", FT_STRING, BASE_NONE,
293	14	NULL, 0x0, NULL, HFILL }},
294	14	{ &hf_hpsw_root_mac_addr,
295	14	{ "Root MAC Addr", "hpsw.root_mac_addr", FT_ETHER, BASE_NONE,
296	14	NULL, 0x0, NULL, HFILL }},
297	14	{ &hf_hpsw_ip_addr,
298	14	{ "IP Addr", "hpsw.ip_addr", FT_IPv4, BASE_NONE,
299	14	NULL, 0x0, NULL, HFILL }},
300	14	{ &hf_hpsw_field_6,
301	14	{ "Field 6", "hpsw.field_6", FT_UINT16, BASE_HEX,
302	14	NULL, 0x0, NULL, HFILL }},
303	14	{ &hf_hpsw_domain,
304	14	{ "Domain", "hpsw.domain", FT_STRING, BASE_NONE,
305	14	NULL, 0x0, NULL, HFILL }},
306	14	{ &hf_hpsw_field_8,
307	14	{ "Field 8", "hpsw.field_8", FT_UINT16, BASE_HEX,
308	14	NULL, 0x0, NULL, HFILL }},
309	14	{ &hf_hpsw_field_9,
310	14	{ "Field 9", "hpsw.field_9", FT_UINT16, BASE_HEX,
311	14	NULL, 0x0, NULL, HFILL }},
312	14	{ &hf_hpsw_field_10,
313	14	{ "Field 10", "hpsw.field_10", FT_UINT32, BASE_HEX,
314	14	NULL, 0x0, NULL, HFILL }},
315	14	{ &hf_hpsw_neighbor_mac_addr,
316	14	{ "MAC Addr", "hpsw.neighbor_mac_addr", FT_ETHER, BASE_NONE,
317	14	NULL, 0x0, NULL, HFILL }},
318	14	{ &hf_hpsw_field_12,
319	14	{ "Field 12", "hpsw.field_12", FT_UINT8, BASE_HEX,
320	14	NULL, 0x0, NULL, HFILL }},
321	14	{ &hf_hpsw_own_mac_addr,
322	14	{ "Own MAC Addr", "hpsw.own_mac_addr", FT_ETHER, BASE_NONE,
323	14	NULL, 0x0, NULL, HFILL }},
324	14	{ &hf_hpsw_device_id,
325	14	{ "Device ID", "hpsw.device_id", FT_ETHER, BASE_NONE,
326	14	NULL, 0x0, NULL, HFILL }},
327	14	{ &hf_hpsw_device_id_data,
328	14	{ "Data", "hpsw.device_id_data", FT_BYTES, BASE_NONE,
329	14	NULL, 0x0, NULL, HFILL }},
330	14	{ &hf_hpsw_data,
331	14	{ "Data", "hpsw.data", FT_BYTES, BASE_NONE,
332	14	NULL, 0x0, NULL, HFILL }},
333	14	};
334
335	14	static int *ett[] = {
336	14	&ett_hpsw,
337	14	&ett_hpsw_tlv
338	14	};
339
340	14	static ei_register_info ei[] = {
341	14	{ &ei_hpsw_tlvlength_bad, { "hpsw.tlv_len.bad", PI_PROTOCOL, PI_WARN, "Bad length", EXPFILL }},
342	14	};
343
344	14	expert_module_t* expert_hpsw;
345
346	14	proto_hpsw = proto_register_protocol( "HP Switch Protocol", "HPSW", "hpsw");
347	14	proto_register_field_array(proto_hpsw, hf, array_length(hf));
348	14	proto_register_subtree_array(ett, array_length(ett));
349	14	expert_hpsw = expert_register_protocol(proto_hpsw);
350	14	expert_register_field_array(expert_hpsw, ei, array_length(ei));
351
352	14	hpsw_handle = register_dissector("hpsw", dissect_hpsw, proto_hpsw);
353	14	}
354
355		void
356		proto_reg_handoff_hpsw(void)
357	14	{
358	14	dissector_add_uint("hpext.dxsap", HPEXT_HPSW, hpsw_handle);
359	14	}
360
361		/*
362		* Editor modelines
363		*
364		* Local Variables:
365		* c-basic-offset: 4
366		* tab-width: 8
367		* indent-tabs-mode: nil
368		* End:
369		*
370		* ex: set shiftwidth=4 tabstop=8 expandtab:
371		* :indentSize=4:tabSize=8:noTabs=true:
372		*/