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Enhance MPLS Dissector 

* use proto_tree_add_item
 * start Header field by hf_mpls...


svn path=/trunk/; revision=42512
This commit is contained in:
Alexis La Goutte 2012-05-08 17:41:23 +00:00
parent f5a1787a06
commit c16cd8f997
1 changed files with 29 additions and 33 deletions
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62
epan/dissectors/packet-mpls.c
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@ -87,16 +87,6 @@ const value_string special_labels[] = {
{0, NULL }
};
/* MPLS filter values */
enum mpls_filter_keys {
/* MPLS encap properties */
MPLSF_LABEL,
MPLSF_EXP,
MPLSF_BOTTOM_OF_STACK,
MPLSF_TTL,
MPLSF_MAX
};
static dissector_handle_t dissector_data;
static dissector_handle_t dissector_ipv6;
static dissector_handle_t dissector_ip;
@ -221,7 +211,11 @@ static enum_val_t mpls_default_payload_defs[] = {
}
};
static int mpls_filter[MPLSF_MAX];
static int hf_mpls_label;
static int hf_mpls_label_special;
static int hf_mpls_exp;
static int hf_mpls_bos;
static int hf_mpls_ttl;
static gint mpls_default_payload = 0;
@ -573,27 +567,25 @@ dissect_mpls(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree)
proto_item_append_text(ti, ", Label: %u", label);
if (label <= LABEL_MAX_RESERVED){
proto_tree_add_uint_format(mpls_tree, mpls_filter[MPLSF_LABEL], tvb,
offset, 3, label, "MPLS Label: %u (%s)",
label, val_to_str(label, special_labels,
"Reserved - Unknown"));
proto_item_append_text(ti, " (%s)", val_to_str(label, special_labels,
"Reserved - Unknown"));
proto_tree_add_item(mpls_tree, hf_mpls_label_special, tvb,
offset, 4, ENC_BIG_ENDIAN);
proto_item_append_text(ti, " (%s)", val_to_str(label,
special_labels, "Reserved - Unknown"));
} else {
proto_tree_add_uint_format(mpls_tree, mpls_filter[MPLSF_LABEL], tvb,
offset, 3, label, "MPLS Label: %u", label);
proto_tree_add_item(mpls_tree, hf_mpls_label, tvb, offset, 4,
ENC_BIG_ENDIAN);
}
proto_tree_add_uint(mpls_tree,mpls_filter[MPLSF_EXP], tvb,
offset+2,1, exp);
proto_tree_add_item(mpls_tree, hf_mpls_exp, tvb, offset, 4,
ENC_BIG_ENDIAN);
proto_item_append_text(ti, ", Exp: %u", exp);
proto_tree_add_uint(mpls_tree,mpls_filter[MPLSF_BOTTOM_OF_STACK], tvb,
offset+2,1, bos);
proto_tree_add_item(mpls_tree, hf_mpls_bos , tvb, offset, 4,
ENC_BIG_ENDIAN);
proto_item_append_text(ti, ", S: %u", bos);
proto_tree_add_uint(mpls_tree,mpls_filter[MPLSF_TTL], tvb,
offset+3,1, ttl);
proto_tree_add_item(mpls_tree, hf_mpls_ttl, tvb, offset, 4,
ENC_BIG_ENDIAN);
proto_item_append_text(ti, ", TTL: %u", ttl);
}
@ -699,20 +691,24 @@ proto_register_mpls(void)
static hf_register_info mplsf_info[] = {
/* MPLS header fields */
{&mpls_filter[MPLSF_LABEL],
{"MPLS Label", "mpls.label", FT_UINT32, BASE_DEC, VALS(special_labels), 0x0,
{&hf_mpls_label,
{"MPLS Label", "mpls.label", FT_UINT32, BASE_DEC, NULL, 0xFFFFF000,
NULL, HFILL }},
{&mpls_filter[MPLSF_EXP],
{"MPLS Experimental Bits", "mpls.exp", FT_UINT8, BASE_DEC, NULL, 0x0,
{&hf_mpls_label_special,
{"MPLS Label", "mpls.label", FT_UINT32, BASE_DEC, VALS(special_labels), 0xFFFFF000,
NULL, HFILL }},
{&mpls_filter[MPLSF_BOTTOM_OF_STACK],
{"MPLS Bottom Of Label Stack", "mpls.bottom", FT_UINT8, BASE_DEC, NULL, 0x0,
{&hf_mpls_exp,
{"MPLS Experimental Bits", "mpls.exp", FT_UINT32, BASE_DEC, NULL, 0x00000E00,
NULL, HFILL }},
{&mpls_filter[MPLSF_TTL],
{"MPLS TTL", "mpls.ttl", FT_UINT8, BASE_DEC, NULL, 0x0,
{&hf_mpls_bos,
{"MPLS Bottom Of Label Stack", "mpls.bottom", FT_UINT32, BASE_DEC, NULL, 0x00000100,
NULL, HFILL }},
{&hf_mpls_ttl,
{"MPLS TTL", "mpls.ttl", FT_UINT32, BASE_DEC, NULL, 0x0000000FF,
NULL, HFILL }},
/* PW Associated Channel Header fields */