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Add display filters. 

svn path=/trunk/; revision=857
This commit is contained in:
Laurent Deniel 1999-10-16 15:08:11 +00:00
parent 2763f4c7ef
commit 06f434844b
1 changed files with 67 additions and 16 deletions
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83
packet-dns.c
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@ -1,7 +1,7 @@
/* packet-dns.c
* Routines for DNS packet disassembly
*
* $Id: packet-dns.c,v 1.24 1999/10/07 09:21:36 guy Exp $
* $Id: packet-dns.c,v 1.25 1999/10/16 15:08:11 deniel Exp $
*
* Ethereal - Network traffic analyzer
* By Gerald Combs <gerald@zing.org>
@ -41,6 +41,14 @@
#include "util.h"
static int proto_dns = -1;
static int hf_dns_response = -1;
static int hf_dns_query = -1;
static int hf_dns_flags = -1;
static int hf_dns_transaction_id = -1;
static int hf_dns_count_questions = -1;
static int hf_dns_count_answers = -1;
static int hf_dns_count_auth_rr = -1;
static int hf_dns_count_add_rr = -1;
/* DNS structs and definitions */
@ -960,9 +968,14 @@ dissect_dns(const u_char *pd, int offset, frame_data *fd, proto_tree *tree)
(flags & F_RESPONSE) ? "DNS response" : "DNS query");
dns_tree = proto_item_add_subtree(ti, ETT_DNS);
proto_tree_add_text(dns_tree, offset + DNS_ID, 2, "Transaction ID: 0x%04x",
id);
if (flags & F_RESPONSE)
proto_tree_add_item_hidden(dns_tree, hf_dns_response, offset, 4, 1);
else
proto_tree_add_item_hidden(dns_tree, hf_dns_query, offset, 4, 1);
proto_tree_add_item(dns_tree, hf_dns_transaction_id,
offset + DNS_ID, 2, id);
strcpy(buf, val_to_str(flags & F_OPCODE, opcode_vals, "Unknown operation"));
if (flags & F_RESPONSE) {
@ -971,8 +984,11 @@ dissect_dns(const u_char *pd, int offset, frame_data *fd, proto_tree *tree)
strcat(buf, val_to_str(flags & F_RCODE, rcode_vals,
"Unknown error"));
}
tf = proto_tree_add_text(dns_tree, offset + DNS_FLAGS, 2, "Flags: 0x%04x (%s)",
flags, buf);
tf = proto_tree_add_item_format(dns_tree, hf_dns_flags,
offset + DNS_FLAGS, 2,
flags,
"Flags: 0x%04x (%s)",
flags, buf);
field_tree = proto_item_add_subtree(tf, ETT_DNS_FLAGS);
proto_tree_add_text(field_tree, offset + DNS_FLAGS, 2, "%s",
decode_boolean_bitfield(flags, F_RESPONSE,
@ -1007,10 +1023,14 @@ dissect_dns(const u_char *pd, int offset, frame_data *fd, proto_tree *tree)
decode_enumerated_bitfield(flags, F_RCODE,
2*8, rcode_vals, "%s"));
}
proto_tree_add_text(dns_tree, offset + DNS_QUEST, 2, "Questions: %d", quest);
proto_tree_add_text(dns_tree, offset + DNS_ANS, 2, "Answer RRs: %d", ans);
proto_tree_add_text(dns_tree, offset + DNS_AUTH, 2, "Authority RRs: %d", auth);
proto_tree_add_text(dns_tree, offset + DNS_ADD, 2, "Additional RRs: %d", add);
proto_tree_add_item(dns_tree, hf_dns_count_questions,
offset + DNS_QUEST, 2, quest);
proto_tree_add_item(dns_tree, hf_dns_count_answers,
offset + DNS_ANS, 2, ans);
proto_tree_add_item(dns_tree, hf_dns_count_auth_rr,
offset + DNS_AUTH, 2, auth);
proto_tree_add_item(dns_tree, hf_dns_count_add_rr,
offset + DNS_ADD, 2, add);
cur_off = offset + DNS_HDRLEN;
@ -1035,11 +1055,42 @@ dissect_dns(const u_char *pd, int offset, frame_data *fd, proto_tree *tree)
void
proto_register_dns(void)
{
/* static hf_register_info hf[] = {
{ &variable,
{ "Name", "dns.abbreviation", TYPE, VALS_POINTER }},
};*/
static hf_register_info hf[] = {
{ &hf_dns_response,
{ "Response", "dns.response",
FT_BOOLEAN, BASE_NONE, NULL, 0x0,
"TRUE if DNS response" }},
{ &hf_dns_query,
{ "Query", "dns.query",
FT_BOOLEAN, BASE_NONE, NULL, 0x0,
"TRUE if DNS query" }},
{ &hf_dns_flags,
{ "Flags", "dns.flags",
FT_UINT16, BASE_HEX, NULL, 0x0,
"" }},
{ &hf_dns_transaction_id,
{ "Transaction ID", "dns.id",
FT_UINT16, BASE_HEX, NULL, 0x0,
"Identification of transaction" }},
{ &hf_dns_count_questions,
{ "Questions", "dns.count.queries",
FT_UINT16, BASE_DEC, NULL, 0x0,
"Number of queries in packet" }},
{ &hf_dns_count_answers,
{ "Answer RRs", "dns.count.answers",
FT_UINT16, BASE_DEC, NULL, 0x0,
"Number of answers in packet" }},
{ &hf_dns_count_auth_rr,
{ "Authority RRs", "dns.count.auth_rr",
FT_UINT16, BASE_DEC, NULL, 0x0,
"Number of authoritative records in packet" }},
{ &hf_dns_count_add_rr,
{ "Additional RRs", "dns.count.add_rr",
FT_UINT16, BASE_DEC, NULL, 0x0,
"Number of additional records in packet" }}
};
proto_dns = proto_register_protocol("Domain Name Service", "dns");
proto_register_field_array(proto_dns, hf, array_length(hf));
proto_dns = proto_register_protocol("Domain Name Service", "dns");
/* proto_register_field_array(proto_dns, hf, array_length(hf));*/
}