1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
|
/* packet-http.c
*
* 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 <epan/wmem/wmem.h>
#include "http-parser.h"
#include <gmodule.h>
static const value_string http_response_codes[] = {
{ 200, "OK" },
{ 302, "Later" },
{ 0, NULL }
};
static gint ett_http = -1;
static int proto_http = -1;
static int hf_http_is_response = -1;
static int hf_http_request_method = -1;
static int hf_http_response_code = -1;
static int hf_http_transfer_encoding = -1;
static int hf_http_content_length = -1;
static int hf_http_media = -1;
static int hf_http_host = -1;
static int hf_http_request_uri = -1;
static dissector_handle_t http_handle;
static int dissect_http(tvbuff_t* tvb, packet_info* pinfo _U_, proto_tree* tree, void* data _U_) {
http_info_value_t* msgdata = wmem_alloc0(wmem_packet_scope(), sizeof(http_info_value_t));
tvbparse_elem_t* reqresp;
tpg_parser_data_t* tpg;
proto_item* pi = proto_tree_add_item(tree,proto_http,tvb,0,-1,ENC_NA);
proto_tree* pt = proto_item_add_subtree(pi,ett_http);
tpg = tpg_start(pt,tvb,0,-1,http_tpg_data.wanted_http_sp, msgdata);
if (( reqresp = TPG_GET(tpg,http_tpg_data.wanted_http_req_resp) )) {
tvbparse_elem_t* hdr;
while(( hdr = TPG_GET(tpg,http_tpg_data.wanted_http_header) ))
;
if ( TPG_GET(tpg,http_tpg_data.wanted_http_crlf) ) {
pi = proto_tree_add_boolean(pt,hf_http_is_response,tvb,0,0,msgdata->is_response);
pt = proto_item_add_subtree(pi,ett_http);
if (msgdata->is_response) {
proto_tree_add_uint(pt,hf_http_response_code,tvb,0,0,msgdata->response_code);
proto_tree_add_uint(pt,hf_http_content_length,tvb,0,0,msgdata->content_length);
if (msgdata->transfer_encoding) proto_tree_add_string(pt,hf_http_transfer_encoding,tvb,0,0,msgdata->transfer_encoding);
if (msgdata->media) proto_tree_add_string(pt,hf_http_media,tvb,0,0,msgdata->media);
} else {
if (msgdata->request_method) proto_tree_add_string(pt,hf_http_request_method,tvb,0,0,msgdata->request_method);
if (msgdata->http_host) proto_tree_add_string(pt,hf_http_host,tvb,0,0,msgdata->http_host);
if (msgdata->request_uri) proto_tree_add_string(pt,hf_http_request_uri,tvb,0,0,msgdata->request_uri);
}
} else {
/* header fragment */
}
} else {
/* no header */
}
return tvb_captured_length(tvb);
}
static void proto_register_http(void) {
static hf_register_info hf[] = {
HF_HTTP_PARSER,
{ &hf_http_is_response, { "=Is Response", "hyttp.info.is_response", FT_BOOLEAN, BASE_NONE, NULL, 0x0, "", HFILL }},
{ &hf_http_request_method, { "=Method", "hyttp.info.method", FT_STRING, BASE_NONE, NULL, 0x0, "", HFILL }},
{ &hf_http_response_code, { "=Response Code", "hyttp.info.response.code", FT_UINT32, BASE_DEC, VALS( http_response_codes ), 0x0, "", HFILL }},
{ &hf_http_transfer_encoding, { "=Transfer-Encoding", "hyttp.info.transfer_encoding", FT_STRING, BASE_NONE, NULL, 0x0, "", HFILL }},
{ &hf_http_content_length, { "=Content-Length", "hyttp.info.content_length", FT_UINT32, BASE_DEC, NULL, 0x0, "", HFILL }},
{ &hf_http_request_uri, { "=Request URI", "hyttp.info.uri", FT_STRING, BASE_NONE, NULL, 0x0, "", HFILL }},
{ &hf_http_media, { "=Media", "hyttp.info.media", FT_STRING, BASE_NONE, NULL, 0x0, "", HFILL }},
{ &hf_http_host, { "=Host", "hyttp.info.host", FT_STRING, BASE_NONE, NULL, 0x0, "", HFILL }}
};
gint *ett[] = {
ETT_HTTP_PARSER,
&ett_http
};
tpg_http_init();
proto_http = proto_register_protocol("HyTTP", "HyTTP", "hyttp");
proto_register_field_array(proto_http, hf, array_length(hf));
proto_register_subtree_array(ett, array_length(ett));
}
static void proto_reg_handoff_http(void) {
http_handle = create_dissector_handle(dissect_http, proto_http);
dissector_add_uint_with_preference("tcp.port", 80, http_handle);
}
#ifndef ENABLE_STATIC
WS_DLL_PUBLIC_DEF const gchar version[] = "0.0.0";
WS_DLL_PUBLIC_DEF void
plugin_register(void)
{
/* register the new protocol, protocol fields, and subtrees */
if (proto_http == -1) { /* execute protocol initialization only once */
proto_register_http();
}
}
WS_DLL_PUBLIC_DEF void
plugin_reg_handoff(void){
proto_reg_handoff_http();
}
#endif
/*
* 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:
*/
|
