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/* Do not modify this file. Changes will be overwritten. */
/* Generated automatically by the ASN.1 to Wireshark dissector compiler */
/* packet-pkcs10.c */
/* asn2wrs.py -b -q -L -p pkcs10 -c ./pkcs10.cnf -s ./packet-pkcs10-template -D . -O ../.. PKCS10.asn */
/* packet-p10.c
*
* Routines for PKCS10 packet dissection
* Martin Peylo <wireshark@izac.de> 2018
*
* 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 <wsutil/array.h>
#include <epan/oids.h>
#include <epan/asn1.h>
#include "packet-ber.h"
#include "packet-pkcs10.h"
#include "packet-pkix1explicit.h"
#include "packet-pkix1implicit.h"
#include <epan/prefs.h>
#define PNAME "PKCS10 Certification Request"
#define PSNAME "PKCS10"
#define PFNAME "pkcs10"
void proto_register_pkcs10(void);
static dissector_handle_t csr_handle;
/* Initialize the protocol and registered fields */
static int proto_pkcs10;
static int hf_pkcs10_Attributes_PDU; /* Attributes */
static int hf_pkcs10_CertificationRequest_PDU; /* CertificationRequest */
static int hf_pkcs10_version; /* T_version */
static int hf_pkcs10_subject; /* Name */
static int hf_pkcs10_subjectPKInfo; /* SubjectPublicKeyInfo */
static int hf_pkcs10_attributes; /* Attributes */
static int hf_pkcs10_Attributes_item; /* Attribute */
static int hf_pkcs10_type; /* T_type */
static int hf_pkcs10_values; /* T_values */
static int hf_pkcs10_values_item; /* T_values_item */
static int hf_pkcs10_certificationRequestInfo; /* CertificationRequestInfo */
static int hf_pkcs10_signatureAlgorithm; /* AlgorithmIdentifier */
static int hf_pkcs10_signature; /* BIT_STRING */
/* Initialize the subtree pointers */
static int ett_pkcs10_CertificationRequestInfo;
static int ett_pkcs10_Attributes;
static int ett_pkcs10_Attribute;
static int ett_pkcs10_T_values;
static int ett_pkcs10_CertificationRequest;
static const value_string pkcs10_T_version_vals[] = {
{ 0, "v1" },
{ 0, NULL }
};
static int
dissect_pkcs10_T_version(bool implicit_tag _U_, tvbuff_t *tvb _U_, int offset _U_, asn1_ctx_t *actx _U_, proto_tree *tree _U_, int hf_index _U_) {
offset = dissect_ber_integer(implicit_tag, actx, tree, tvb, offset, hf_index,
NULL);
return offset;
}
static int
dissect_pkcs10_T_type(bool implicit_tag _U_, tvbuff_t *tvb _U_, int offset _U_, asn1_ctx_t *actx _U_, proto_tree *tree _U_, int hf_index _U_) {
offset = dissect_ber_object_identifier_str(implicit_tag, actx, tree, tvb, offset, hf_pkcs10_type, &actx->external.direct_reference);
return offset;
}
static int
dissect_pkcs10_T_values_item(bool implicit_tag _U_, tvbuff_t *tvb _U_, int offset _U_, asn1_ctx_t *actx _U_, proto_tree *tree _U_, int hf_index _U_) {
offset=call_ber_oid_callback(actx->external.direct_reference, tvb, offset, actx->pinfo, tree, NULL);
return offset;
}
static const ber_sequence_t T_values_set_of[1] = {
{ &hf_pkcs10_values_item , BER_CLASS_ANY, 0, BER_FLAGS_NOOWNTAG, dissect_pkcs10_T_values_item },
};
static int
dissect_pkcs10_T_values(bool implicit_tag _U_, tvbuff_t *tvb _U_, int offset _U_, asn1_ctx_t *actx _U_, proto_tree *tree _U_, int hf_index _U_) {
offset = dissect_ber_set_of(implicit_tag, actx, tree, tvb, offset,
T_values_set_of, hf_index, ett_pkcs10_T_values);
return offset;
}
static const ber_sequence_t Attribute_sequence[] = {
{ &hf_pkcs10_type , BER_CLASS_UNI, BER_UNI_TAG_OID, BER_FLAGS_NOOWNTAG, dissect_pkcs10_T_type },
{ &hf_pkcs10_values , BER_CLASS_UNI, BER_UNI_TAG_SET, BER_FLAGS_NOOWNTAG, dissect_pkcs10_T_values },
{ NULL, 0, 0, 0, NULL }
};
static int
dissect_pkcs10_Attribute(bool implicit_tag _U_, tvbuff_t *tvb _U_, int offset _U_, asn1_ctx_t *actx _U_, proto_tree *tree _U_, int hf_index _U_) {
offset = dissect_ber_sequence(implicit_tag, actx, tree, tvb, offset,
Attribute_sequence, hf_index, ett_pkcs10_Attribute);
return offset;
}
static const ber_sequence_t Attributes_set_of[1] = {
{ &hf_pkcs10_Attributes_item, BER_CLASS_UNI, BER_UNI_TAG_SEQUENCE, BER_FLAGS_NOOWNTAG, dissect_pkcs10_Attribute },
};
static int
dissect_pkcs10_Attributes(bool implicit_tag _U_, tvbuff_t *tvb _U_, int offset _U_, asn1_ctx_t *actx _U_, proto_tree *tree _U_, int hf_index _U_) {
offset = dissect_ber_set_of(implicit_tag, actx, tree, tvb, offset,
Attributes_set_of, hf_index, ett_pkcs10_Attributes);
return offset;
}
static const ber_sequence_t CertificationRequestInfo_sequence[] = {
{ &hf_pkcs10_version , BER_CLASS_UNI, BER_UNI_TAG_INTEGER, BER_FLAGS_NOOWNTAG, dissect_pkcs10_T_version },
{ &hf_pkcs10_subject , BER_CLASS_ANY, -1, BER_FLAGS_NOOWNTAG, dissect_pkix1explicit_Name },
{ &hf_pkcs10_subjectPKInfo, BER_CLASS_UNI, BER_UNI_TAG_SEQUENCE, BER_FLAGS_NOOWNTAG, dissect_pkix1explicit_SubjectPublicKeyInfo },
{ &hf_pkcs10_attributes , BER_CLASS_CON, 0, BER_FLAGS_IMPLTAG, dissect_pkcs10_Attributes },
{ NULL, 0, 0, 0, NULL }
};
static int
dissect_pkcs10_CertificationRequestInfo(bool implicit_tag _U_, tvbuff_t *tvb _U_, int offset _U_, asn1_ctx_t *actx _U_, proto_tree *tree _U_, int hf_index _U_) {
offset = dissect_ber_sequence(implicit_tag, actx, tree, tvb, offset,
CertificationRequestInfo_sequence, hf_index, ett_pkcs10_CertificationRequestInfo);
return offset;
}
static int
dissect_pkcs10_BIT_STRING(bool implicit_tag _U_, tvbuff_t *tvb _U_, int offset _U_, asn1_ctx_t *actx _U_, proto_tree *tree _U_, int hf_index _U_) {
offset = dissect_ber_bitstring(implicit_tag, actx, tree, tvb, offset,
NULL, 0, hf_index, -1,
NULL);
return offset;
}
static const ber_sequence_t CertificationRequest_sequence[] = {
{ &hf_pkcs10_certificationRequestInfo, BER_CLASS_UNI, BER_UNI_TAG_SEQUENCE, BER_FLAGS_NOOWNTAG, dissect_pkcs10_CertificationRequestInfo },
{ &hf_pkcs10_signatureAlgorithm, BER_CLASS_UNI, BER_UNI_TAG_SEQUENCE, BER_FLAGS_NOOWNTAG, dissect_pkix1explicit_AlgorithmIdentifier },
{ &hf_pkcs10_signature , BER_CLASS_UNI, BER_UNI_TAG_BITSTRING, BER_FLAGS_NOOWNTAG, dissect_pkcs10_BIT_STRING },
{ NULL, 0, 0, 0, NULL }
};
int
dissect_pkcs10_CertificationRequest(bool implicit_tag _U_, tvbuff_t *tvb _U_, int offset _U_, asn1_ctx_t *actx _U_, proto_tree *tree _U_, int hf_index _U_) {
offset = dissect_ber_sequence(implicit_tag, actx, tree, tvb, offset,
CertificationRequest_sequence, hf_index, ett_pkcs10_CertificationRequest);
return offset;
}
/*--- PDUs ---*/
static int dissect_Attributes_PDU(tvbuff_t *tvb _U_, packet_info *pinfo _U_, proto_tree *tree _U_, void *data _U_) {
int offset = 0;
asn1_ctx_t asn1_ctx;
asn1_ctx_init(&asn1_ctx, ASN1_ENC_BER, true, pinfo);
offset = dissect_pkcs10_Attributes(false, tvb, offset, &asn1_ctx, tree, hf_pkcs10_Attributes_PDU);
return offset;
}
static int dissect_CertificationRequest_PDU(tvbuff_t *tvb _U_, packet_info *pinfo _U_, proto_tree *tree _U_, void *data _U_) {
int offset = 0;
asn1_ctx_t asn1_ctx;
asn1_ctx_init(&asn1_ctx, ASN1_ENC_BER, true, pinfo);
offset = dissect_pkcs10_CertificationRequest(false, tvb, offset, &asn1_ctx, tree, hf_pkcs10_CertificationRequest_PDU);
return offset;
}
/*--- proto_register_pkcs10 ----------------------------------------------*/
void proto_register_pkcs10(void) {
/* List of fields */
static hf_register_info hf[] = {
{ &hf_pkcs10_Attributes_PDU,
{ "Attributes", "pkcs10.Attributes",
FT_UINT32, BASE_DEC, NULL, 0,
NULL, HFILL }},
{ &hf_pkcs10_CertificationRequest_PDU,
{ "CertificationRequest", "pkcs10.CertificationRequest_element",
FT_NONE, BASE_NONE, NULL, 0,
NULL, HFILL }},
{ &hf_pkcs10_version,
{ "version", "pkcs10.version",
FT_UINT32, BASE_DEC, VALS(pkcs10_T_version_vals), 0,
NULL, HFILL }},
{ &hf_pkcs10_subject,
{ "subject", "pkcs10.subject",
FT_UINT32, BASE_DEC, NULL, 0,
"Name", HFILL }},
{ &hf_pkcs10_subjectPKInfo,
{ "subjectPKInfo", "pkcs10.subjectPKInfo_element",
FT_NONE, BASE_NONE, NULL, 0,
"SubjectPublicKeyInfo", HFILL }},
{ &hf_pkcs10_attributes,
{ "attributes", "pkcs10.attributes",
FT_UINT32, BASE_DEC, NULL, 0,
NULL, HFILL }},
{ &hf_pkcs10_Attributes_item,
{ "Attribute", "pkcs10.Attribute_element",
FT_NONE, BASE_NONE, NULL, 0,
NULL, HFILL }},
{ &hf_pkcs10_type,
{ "type", "pkcs10.type",
FT_OID, BASE_NONE, NULL, 0,
NULL, HFILL }},
{ &hf_pkcs10_values,
{ "values", "pkcs10.values",
FT_UINT32, BASE_DEC, NULL, 0,
NULL, HFILL }},
{ &hf_pkcs10_values_item,
{ "values item", "pkcs10.values_item_element",
FT_NONE, BASE_NONE, NULL, 0,
NULL, HFILL }},
{ &hf_pkcs10_certificationRequestInfo,
{ "certificationRequestInfo", "pkcs10.certificationRequestInfo_element",
FT_NONE, BASE_NONE, NULL, 0,
NULL, HFILL }},
{ &hf_pkcs10_signatureAlgorithm,
{ "signatureAlgorithm", "pkcs10.signatureAlgorithm_element",
FT_NONE, BASE_NONE, NULL, 0,
"AlgorithmIdentifier", HFILL }},
{ &hf_pkcs10_signature,
{ "signature", "pkcs10.signature",
FT_BYTES, BASE_NONE, NULL, 0,
"BIT_STRING", HFILL }},
};
/* List of subtrees */
static int *ett[] = {
&ett_pkcs10_CertificationRequestInfo,
&ett_pkcs10_Attributes,
&ett_pkcs10_Attribute,
&ett_pkcs10_T_values,
&ett_pkcs10_CertificationRequest,
};
/* Register protocol */
proto_pkcs10 = proto_register_protocol(PNAME, PSNAME, PFNAME);
/* Register fields and subtrees */
proto_register_field_array(proto_pkcs10, hf, array_length(hf));
proto_register_subtree_array(ett, array_length(ett));
csr_handle = register_dissector(PFNAME, dissect_CertificationRequest_PDU, proto_pkcs10);
register_ber_syntax_dissector("CertificationRequest", proto_pkcs10, dissect_CertificationRequest_PDU);
register_ber_oid_syntax(".p10", NULL, "CertificationRequest");
register_ber_oid_syntax(".csr", NULL, "CertificationRequest");
}
/*--- proto_reg_handoff_pkcs10 -------------------------------------------*/
void proto_reg_handoff_pkcs10(void) {
register_ber_oid_dissector("1.2.840.113549.1.9.9", dissect_Attributes_PDU, proto_pkcs10, "pkcs-9-at-extendedCertificateAttributes");
dissector_add_string("media_type", "application/pkcs10", csr_handle); /* RFC 5967 */
dissector_add_string("rfc7468.preeb_label", "CERTIFICATE REQUEST", csr_handle); /* RFC 7468 */
dissector_add_string("rfc7468.preeb_label", "NEW CERTIFICATE REQUEST", csr_handle); /* RFC 7468 Appendix A. Non-conforming example*/
}
|
