wireshark/epan/dissectors/packet-app-pkix-cert.c

129 lines
3.7 KiB
C

/* packet-app-pkix-cert.c
*
* Routines for application/pkix-cert media dissection
* Copyright 2004, Yaniv Kaul.
*
* Refer to the AUTHORS file or the AUTHORS section in the man page
* for contacting the author(s) of this file.
*
* 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/packet.h>
#include <epan/asn1.h>
#include "packet-x509af.h"
void proto_register_cert(void);
void proto_reg_handoff_cert(void);
/* Initialize the protocol and registered fields */
static int proto_cert = -1;
static gint hf_cert = -1;
/* Initialize the subtree pointers */
static gint ett_cert = -1;
static int
dissect_cert(tvbuff_t *tvb, packet_info *pinfo _U_, proto_tree *tree, void* data _U_)
{
proto_tree *subtree = NULL;
proto_item *ti;
asn1_ctx_t asn1_ctx;
asn1_ctx_init(&asn1_ctx, ASN1_ENC_BER, TRUE, pinfo);
col_append_sep_fstr(pinfo->cinfo, COL_INFO, " ", "(application/pkix-cert)");
if (tree) {
ti = proto_tree_add_item(tree, proto_cert, tvb, 0, -1, ENC_NA);
subtree = proto_item_add_subtree(ti, ett_cert);
}
dissect_x509af_Certificate(FALSE, tvb, 0, &asn1_ctx, subtree, hf_cert);
return tvb_captured_length(tvb);
}
/****************** Register the protocol with Wireshark ******************/
/* This format is required because a script is used to build the C function
* that calls the protocol registration. */
void
proto_register_cert(void)
{
/*
* Setup list of header fields.
*/
static hf_register_info hf[] = {
{ &hf_cert,
{ "Certificate", "pkix-cert.cert", FT_NONE, BASE_NONE, NULL, 0x00, NULL, HFILL}},
};
/* Setup protocol subtree array */
static gint *ett[] = {
&ett_cert,
};
/* Register the protocol name and description */
proto_cert = proto_register_protocol(
"PKIX CERT File Format",
"PKIX Certificate",
"pkix-cert"
);
/* Required function calls to register the header fields
* and subtrees used */
proto_register_field_array(proto_cert, hf, array_length(hf));
proto_register_subtree_array(ett, array_length(ett));
register_dissector("application/pkix-cert", dissect_cert, proto_cert);
}
void
proto_reg_handoff_cert(void)
{
dissector_handle_t cert_handle;
cert_handle = create_dissector_handle(dissect_cert, proto_cert);
/* Register the PKIX-CERT media type */
dissector_add_string("media_type", "application/pkix-cert", cert_handle);
}
/*
* Editor modelines - http://www.wireshark.org/tools/modelines.html
*
* Local variables:
* c-basic-offset: 8
* tab-width: 8
* indent-tabs-mode: nil
* End:
*
* vi: set shiftwidth=8 tabstop=8 expandtab:
* :indentSize=8:tabSize=8:noTabs=true:
*/