diff options
Diffstat (limited to 'epan/dissectors/packet-pkcs10.c')
| -rw-r--r-- | epan/dissectors/packet-pkcs10.c | 299 |
1 files changed, 299 insertions, 0 deletions
diff --git a/epan/dissectors/packet-pkcs10.c b/epan/dissectors/packet-pkcs10.c new file mode 100644 index 00000000..ed736cc1 --- /dev/null +++ b/epan/dissectors/packet-pkcs10.c @@ -0,0 +1,299 @@ +/* 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 -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 <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 = -1; +static int hf_pkcs10_Attributes_PDU = -1; /* Attributes */ +static int hf_pkcs10_CertificationRequest_PDU = -1; /* CertificationRequest */ +static int hf_pkcs10_version = -1; /* T_version */ +static int hf_pkcs10_subject = -1; /* Name */ +static int hf_pkcs10_subjectPKInfo = -1; /* SubjectPublicKeyInfo */ +static int hf_pkcs10_attributes = -1; /* Attributes */ +static int hf_pkcs10_Attributes_item = -1; /* Attribute */ +static int hf_pkcs10_type = -1; /* T_type */ +static int hf_pkcs10_values = -1; /* T_values */ +static int hf_pkcs10_values_item = -1; /* T_values_item */ +static int hf_pkcs10_certificationRequestInfo = -1; /* CertificationRequestInfo */ +static int hf_pkcs10_signatureAlgorithm = -1; /* AlgorithmIdentifier */ +static int hf_pkcs10_signature = -1; /* BIT_STRING */ + +/* Initialize the subtree pointers */ +static gint ett_pkcs10_CertificationRequestInfo = -1; +static gint ett_pkcs10_Attributes = -1; +static gint ett_pkcs10_Attribute = -1; +static gint ett_pkcs10_T_values = -1; +static gint ett_pkcs10_CertificationRequest = -1; + +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 gint *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 expample*/ +} |