aboutsummaryrefslogtreecommitdiffstats
path: root/plugins/tpg/packet-http.c
blob: 266fecfc5028455424911e202f0e33b4ae9dd9fb (plain)
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
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif

#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_request_uri = -1;

static dissector_handle_t http_handle;


struct _elem_tree_stack_frame {
    proto_tree* tree;
    tvbparse_elem_t* elem;
};

static void dissect_http(tvbuff_t* tvb, packet_info* pinfo _U_, proto_tree* tree) {
    http_info_value_t* msgdata = ep_alloc0(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,FALSE);
    proto_tree* pt = proto_item_add_subtree(pi,ett_http);
    
    tpg = tpg_start(pt,tvb,0,-1,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->request_uri) proto_tree_add_string(pt,hf_http_request_uri,tvb,0,0,msgdata->request_uri);
            }
            
    } else {
            /* header fragment */
        }
    } else {
        /* no header  */
        return;
    }
}

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 }}
    };
    
    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_delete("tcp.port", 80, NULL);
    dissector_add("tcp.port", 80, http_handle);

}

#ifndef ENABLE_STATIC

G_MODULE_EXPORT const gchar version[] = "0.0.0";

G_MODULE_EXPORT void
plugin_register(void)
{
	/* register the new protocol, protocol fields, and subtrees */
	if (proto_http == -1) { /* execute protocol initialization only once */
		proto_register_http();
	}
}

G_MODULE_EXPORT void
plugin_reg_handoff(void){
	proto_reg_handoff_http();
}

#endif