![Luis Ontanon](/assets/img/avatar_default.png)
TPG now uses the ignore feature of tvbparse named sub_rules can have cardinality epan/tvbparse.c: do not crash on zero cardinality svn path=/trunk/; revision=16065
125 lines
4.3 KiB
C
125 lines
4.3 KiB
C
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#ifdef HAVE_CONFIG_H
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#include "config.h"
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#endif
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#include "http-parser.h"
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#include <gmodule.h>
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static const value_string http_response_codes[] = {
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{ 200, "OK" },
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{ 302, "Later" },
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{0,NULL}
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};
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static gint ett_http = -1;
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static int proto_http = -1;
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static int hf_http_is_response = -1;
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static int hf_http_request_method = -1;
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static int hf_http_response_code = -1;
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static int hf_http_transfer_encoding = -1;
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static int hf_http_content_length = -1;
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static int hf_http_media = -1;
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static int hf_http_host = -1;
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static int hf_http_request_uri = -1;
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static dissector_handle_t http_handle;
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static void dissect_http(tvbuff_t* tvb, packet_info* pinfo _U_, proto_tree* tree) {
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http_info_value_t* msgdata = ep_alloc0(sizeof(http_info_value_t));
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tvbparse_elem_t* reqresp;
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tpg_parser_data_t* tpg;
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proto_item* pi = proto_tree_add_item(tree,proto_http,tvb,0,-1,FALSE);
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proto_tree* pt = proto_item_add_subtree(pi,ett_http);
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tpg = tpg_start(pt,tvb,0,-1,http_tpg_data.wanted_http_sp, msgdata);
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if (( reqresp = TPG_GET(tpg,http_tpg_data.wanted_http_req_resp) )) {
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tvbparse_elem_t* hdr;
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while(( hdr = TPG_GET(tpg,http_tpg_data.wanted_http_header) ))
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;
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if ( TPG_GET(tpg,http_tpg_data.wanted_http_crlf) ) {
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pi = proto_tree_add_boolean(pt,hf_http_is_response,tvb,0,0,msgdata->is_response);
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pt = proto_item_add_subtree(pi,ett_http);
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if (msgdata->is_response) {
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proto_tree_add_uint(pt,hf_http_response_code,tvb,0,0,msgdata->response_code);
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proto_tree_add_uint(pt,hf_http_content_length,tvb,0,0,msgdata->content_length);
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if (msgdata->transfer_encoding) proto_tree_add_string(pt,hf_http_transfer_encoding,tvb,0,0,msgdata->transfer_encoding);
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if (msgdata->media) proto_tree_add_string(pt,hf_http_media,tvb,0,0,msgdata->media);
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} else {
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if (msgdata->request_method) proto_tree_add_string(pt,hf_http_request_method,tvb,0,0,msgdata->request_method);
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if (msgdata->http_host) proto_tree_add_string(pt,hf_http_host,tvb,0,0,msgdata->http_host);
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if (msgdata->request_uri) proto_tree_add_string(pt,hf_http_request_uri,tvb,0,0,msgdata->request_uri);
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}
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} else {
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/* header fragment */
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}
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} else {
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/* no header */
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return;
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}
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}
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static void proto_register_http(void) {
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static hf_register_info hf[] = {
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HF_HTTP_PARSER,
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{ &hf_http_is_response, { "=Is Response", "hyttp.info.is_response", FT_BOOLEAN, BASE_NONE, NULL, 0x0, "", HFILL }},
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{ &hf_http_request_method, { "=Method", "hyttp.info.method", FT_STRING, BASE_NONE, NULL, 0x0, "", HFILL }},
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{ &hf_http_response_code, { "=Response Code", "hyttp.info.response.code", FT_UINT32, BASE_DEC, VALS( http_response_codes ), 0x0, "", HFILL }},
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{ &hf_http_transfer_encoding, { "=Transfer-Encoding", "hyttp.info.transfer_encoding", FT_STRING, BASE_NONE, NULL, 0x0, "", HFILL }},
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{ &hf_http_content_length, { "=Content-Length", "hyttp.info.content_length", FT_UINT32, BASE_DEC, NULL, 0x0, "", HFILL }},
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{ &hf_http_request_uri, { "=Request URI", "hyttp.info.uri", FT_STRING, BASE_NONE, NULL, 0x0, "", HFILL }},
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{ &hf_http_media, { "=Media", "hyttp.info.media", FT_STRING, BASE_NONE, NULL, 0x0, "", HFILL }},
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{ &hf_http_host, { "=Host", "hyttp.info.host", FT_STRING, BASE_NONE, NULL, 0x0, "", HFILL }}
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};
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gint *ett[] = {
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ETT_HTTP_PARSER,
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&ett_http
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};
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tpg_http_init();
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proto_http = proto_register_protocol("HyTTP",
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"HyTTP", "hyttp");
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proto_register_field_array(proto_http, hf, array_length(hf));
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proto_register_subtree_array(ett, array_length(ett));
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}
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static void proto_reg_handoff_http(void) {
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http_handle = create_dissector_handle(dissect_http, proto_http);
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dissector_delete("tcp.port", 80, NULL);
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dissector_add("tcp.port", 80, http_handle);
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}
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#ifndef ENABLE_STATIC
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G_MODULE_EXPORT const gchar version[] = "0.0.0";
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G_MODULE_EXPORT void
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plugin_register(void)
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{
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/* register the new protocol, protocol fields, and subtrees */
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if (proto_http == -1) { /* execute protocol initialization only once */
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proto_register_http();
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}
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}
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G_MODULE_EXPORT void
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plugin_reg_handoff(void){
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proto_reg_handoff_http();
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}
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#endif
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