epan/dissectors/asn1/ocsp/packet-ocsp-template.c

   1 /* packet-ocsp.c
   2  * Routines for Online Certificate Status Protocol (RFC2560) packet dissection
   3  *  Ronnie Sahlberg 2004
   4  *
   5  * Wireshark - Network traffic analyzer
   6  * By Gerald Combs <gerald@wireshark.org>
   7  * Copyright 1998 Gerald Combs
   8  *
   9  * SPDX-License-Identifier: GPL-2.0-or-later
  10  */
  11
  12 #include "config.h"
  13
  14 #include <epan/packet.h>
  15 #include <wsutil/array.h>
  16
  17 #include <asn1.h>
  18
  19 #include "packet-ber.h"
  20 #include "packet-ocsp.h"
  21 #include "packet-x509af.h"
  22 #include "packet-x509ce.h"
  23 #include "packet-pkix1implicit.h"
  24 #include "packet-pkix1explicit.h"
  25
  26 #define PNAME  "Online Certificate Status Protocol"
  27 #define PSNAME "OCSP"
  28 #define PFNAME "ocsp"
  29
  30 void proto_register_ocsp(void);
  31 void proto_reg_handoff_ocsp(void);
  32
  33 static dissector_handle_t ocsp_request_handle;
  34 static dissector_handle_t ocsp_response_handle;
  35
  36 /* Initialize the protocol and registered fields */
  37 int proto_ocsp;
  38 static int hf_ocsp_responseType_id;
  39 #include "packet-ocsp-hf.c"
  40
  41 /* Initialize the subtree pointers */
  42 static int ett_ocsp;
  43 #include "packet-ocsp-ett.c"
  44
  45 #include "packet-ocsp-fn.c"
  46
  47
  48 static int
  49 dissect_ocsp_request(tvbuff_t *tvb, packet_info *pinfo, proto_tree *parent_tree, void *data _U_)
  50 {
  51         proto_item *item=NULL;
  52         proto_tree *tree=NULL;
  53         asn1_ctx_t asn1_ctx;
  54         asn1_ctx_init(&asn1_ctx, ASN1_ENC_BER, true, pinfo);
  55
  56         col_set_str(pinfo->cinfo, COL_PROTOCOL, "OCSP");
  57
  58         col_set_str(pinfo->cinfo, COL_INFO, "Request");
  59
  60
  61         if(parent_tree){
  62                 item=proto_tree_add_item(parent_tree, proto_ocsp, tvb, 0, -1, ENC_NA);
  63                 tree = proto_item_add_subtree(item, ett_ocsp);
  64         }
  65
  66         return dissect_ocsp_OCSPRequest(false, tvb, 0, &asn1_ctx, tree, -1);
  67 }
  68
  69
  70 static int
  71 dissect_ocsp_response(tvbuff_t *tvb, packet_info *pinfo, proto_tree *parent_tree, void *data _U_)
  72 {
  73         proto_item *item=NULL;
  74         proto_tree *tree=NULL;
  75         asn1_ctx_t asn1_ctx;
  76         asn1_ctx_init(&asn1_ctx, ASN1_ENC_BER, true, pinfo);
  77
  78         col_set_str(pinfo->cinfo, COL_PROTOCOL, "OCSP");
  79
  80         col_set_str(pinfo->cinfo, COL_INFO, "Response");
  81
  82
  83         if(parent_tree){
  84                 item=proto_tree_add_item(parent_tree, proto_ocsp, tvb, 0, -1, ENC_NA);
  85                 tree = proto_item_add_subtree(item, ett_ocsp);
  86         }
  87
  88         return dissect_ocsp_OCSPResponse(false, tvb, 0, &asn1_ctx, tree, -1);
  89 }
  90
  91 /*--- proto_register_ocsp ----------------------------------------------*/
  92 void proto_register_ocsp(void) {
  93
  94   /* List of fields */
  95   static hf_register_info hf[] = {
  96     { &hf_ocsp_responseType_id,
  97       { "ResponseType Id", "ocsp.responseType.id",
  98         FT_STRING, BASE_NONE, NULL, 0,
  99         NULL, HFILL }},
 100 #include "packet-ocsp-hfarr.c"
 101   };
 102
 103   /* List of subtrees */
 104   static int *ett[] = {
 105     &ett_ocsp,
 106 #include "packet-ocsp-ettarr.c"
 107   };
 108
 109   /* Register protocol */
 110   proto_ocsp = proto_register_protocol(PNAME, PSNAME, PFNAME);
 111
 112   /* Register fields and subtrees */
 113   proto_register_field_array(proto_ocsp, hf, array_length(hf));
 114   proto_register_subtree_array(ett, array_length(ett));
 115
 116   /* Register dissectors */
 117   ocsp_request_handle = register_dissector(PFNAME "_req", dissect_ocsp_request, proto_ocsp);
 118   ocsp_response_handle = register_dissector(PFNAME "_res", dissect_ocsp_response, proto_ocsp);
 119 }
 120
 121 /*--- proto_reg_handoff_ocsp -------------------------------------------*/
 122 void proto_reg_handoff_ocsp(void) {
 123         dissector_add_string("media_type", "application/ocsp-request", ocsp_request_handle);
 124         dissector_add_string("media_type", "application/ocsp-response", ocsp_response_handle);
 125
 126 #include "packet-ocsp-dis-tab.c"
 127 }
 128