-/*
- * Copyright (c) 2005-2007,2011-2012,2014 Apple Inc. All Rights Reserved.
- *
- * @APPLE_LICENSE_HEADER_START@
- *
- * This file contains Original Code and/or Modifications of Original Code
- * as defined in and that are subject to the Apple Public Source License
- * Version 2.0 (the 'License'). You may not use this file except in
- * compliance with the License. Please obtain a copy of the License at
- * http://www.opensource.apple.com/apsl/ and read it before using this
- * file.
- *
- * The Original Code and all software distributed under the License are
- * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
- * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
- * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
- * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
- * Please see the License for the specific language governing rights and
- * limitations under the License.
- *
- * @APPLE_LICENSE_HEADER_END@
- */
-
-
-/*
- * printFeilds.h - print various DER objects
- *
- */
-
-#include <libDERUtils/printFields.h>
-#include <libDER/DER_Decode.h>
-#include <libDER/asn1Types.h>
-#include <libDER/DER_Keys.h>
-#include <libDERUtils/libDERUtils.h>
-#include <stdlib.h>
-#include <strings.h>
-#include <stdio.h>
-
-static int indentLevel = 0;
-
-void doIndent(void)
-{
- int i;
- for (i = 0; i<indentLevel; i++) {
- putchar(' ');
- }
-} /* indent */
-
-void incrIndent(void)
-{
- indentLevel += 3;
-}
-
-void decrIndent(void)
-{
- indentLevel -= 3;
-}
-
-#define TO_PRINT_MAX 12
-
-void printHex(
- DERItem *item)
-{
- unsigned long dex;
- unsigned long toPrint = item->length;
-
- printf("<%lu> ", item->length);
- if(toPrint > TO_PRINT_MAX) {
- toPrint = TO_PRINT_MAX;
- }
- for(dex=0; dex<toPrint; dex++) {
- printf("%02x ", item->data[dex]);
- }
- if(item->length > TO_PRINT_MAX) {
- printf("...");
- }
- printf("\n");
-}
-
-void printBitString(
- DERItem *item)
-{
- DERSize dex;
- DERSize toPrint = item->length;
- DERItem bitStringBytes;
- DERByte numUnused;
- DERReturn drtn;
-
- drtn = DERParseBitString(item, &bitStringBytes, &numUnused);
- if(drtn) {
- DERPerror("DERParseBitString", drtn);
- return;
- }
-
- printf("<%lu, %lu> ", (unsigned long)bitStringBytes.length, (unsigned long)numUnused);
- toPrint = bitStringBytes.length;
- if(toPrint > TO_PRINT_MAX) {
- toPrint = TO_PRINT_MAX;
- }
- for(dex=0; dex<toPrint; dex++) {
- printf("%02x ", bitStringBytes.data[dex]);
- }
- if(item->length > TO_PRINT_MAX) {
- printf("...");
- }
- printf("\n");
-}
-
-void printString(
- DERItem *item)
-{
- unsigned dex;
- char *cp = (char *)item->data;
- printf("'");
- for(dex=0; dex<item->length; dex++) {
- putchar(*cp++);
- }
- printf("'\n");
-
-}
-
-#define COLON_COLUMN 20
-
-/*
- * Print line header, with current indent, followed by specified label, followed
- * by a ':' in column COLON_COLUMN, followed by one space.
- */
-void printHeader(
- const char *label)
-{
- size_t numPrinted;
-
- doIndent();
- printf("%s", label);
- numPrinted = indentLevel + strlen(label);
- if(numPrinted < COLON_COLUMN) {
- size_t numSpaces = COLON_COLUMN - numPrinted;
- size_t dex;
- for(dex=0; dex<numSpaces; dex++) {
- putchar(' ');
- }
- }
- printf(": ");
-}
-
-void printItem(
- const char *label,
- ItemType itemType,
- int verbose,
- DERTag tag, // maybe from decoding, maybe the real tag underlying
- // an implicitly tagged item
- DERItem *item) // content
-{
- DERTag tagClass = tag & ASN1_CLASS_MASK;
- DERTag tagNum = tag & ASN1_TAGNUM_MASK;
- char printable = 0;
- char *asnType = NULL;
-
- printHeader(label);
-
- if((itemType == IT_Branch) && !verbose) {
- printf("\n");
- return;
- }
- switch(tagClass) {
- case ASN1_UNIVERSAL:
- break; // proceed with normal tags */
- case ASN1_APPLICATION:
- printf("APPLICATION (tag %u) ", tagNum);
- printHex(item);
- return;
- case ASN1_CONTEXT_SPECIFIC:
- printf("CONTEXT SPECIFIC (tag %u) ", tagNum);
- printHex(item);
- return;
- case ASN1_PRIVATE:
- printf("PRIVATE (tag %u) ", tagNum);
- printHex(item);
- return;
- }
- switch(tagNum) {
- case ASN1_BOOLEAN:
- asnType = "BOOLEAN";
- break;
- case ASN1_INTEGER:
- asnType = "INTEGER";
- break;
- case ASN1_BIT_STRING:
- /* special case here... */
- printf("BIT STRING ");
- printBitString(item);
- return;
- case ASN1_OCTET_STRING:
- asnType = "OCTET STRING";
- break;
- case ASN1_NULL:
- asnType = "NULL";
- break;
- case ASN1_OBJECT_ID:
- asnType = "OID";
- break;
- case ASN1_OBJECT_DESCRIPTOR:
- asnType = "OBJECT_DESCRIPTOR";
- break;
- case ASN1_REAL:
- asnType = "REAL";
- break;
- case ASN1_ENUMERATED:
- asnType = "ENUM";
- break;
- case ASN1_EMBEDDED_PDV:
- asnType = "EMBEDDED_PDV";
- break;
- case ASN1_UTF8_STRING:
- asnType = "UTF8 STRING";
- /* FIXME print these too */
- break;
- case ASN1_SEQUENCE:
- asnType = "SEQ";
- break;
- case ASN1_SET:
- asnType = "SET";
- break;
- case ASN1_NUMERIC_STRING:
- asnType = "NUMERIC_STRING";
- break;
- case ASN1_PRINTABLE_STRING:
- asnType = "PRINTABLE_STRING";
- printable = 1;
- break;
- case ASN1_T61_STRING:
- asnType = "T61_STRING";
- printable = 1;
- break;
- case ASN1_VIDEOTEX_STRING:
- asnType = "VIDEOTEX_STRING";
- printable = 1;
- break;
- case ASN1_IA5_STRING:
- asnType = "IA5_STRING";
- printable = 1;
- break;
- case ASN1_UTC_TIME:
- asnType = "UTC_TIME";
- printable = 1;
- break;
- case ASN1_GENERALIZED_TIME:
- asnType = "GENERALIZED_TIME";
- printable = 1;
- break;
- case ASN1_GRAPHIC_STRING:
- asnType = "GRAPHIC_STRING";
- break;
- case ASN1_VISIBLE_STRING:
- asnType = "VISIBLE_STRING";
- break;
- case ASN1_GENERAL_STRING:
- asnType = "GENERAL_STRING";
- break;
- case ASN1_UNIVERSAL_STRING:
- asnType = "UNIVERSAL_STRING";
- break;
- case ASN1_BMP_STRING:
- asnType = "BMP_STRING";
- break;
- default:
- asnType = "[unknown]";
- break;
- }
- printf("%s ", asnType);
- if(printable) {
- printString(item);
- }
- else {
- printHex(item);
- }
-}
-
-void printAlgId(
- const DERItem *content,
- int verbose)
-{
- DERReturn drtn;
- DERAlgorithmId algId;
-
- drtn = DERParseSequenceContent(content,
- DERNumAlgorithmIdItemSpecs, DERAlgorithmIdItemSpecs,
- &algId, sizeof(algId));
- if(drtn) {
- DERPerror("DERParseSequenceContent(algId)", drtn);
- return;
- }
- printItem("alg", IT_Leaf, verbose, ASN1_OBJECT_ID, &algId.oid);
- if(algId.params.data) {
- printItem("params", IT_Leaf, verbose, algId.params.data[0], &algId.params);
- }
-}
-
-void printSubjPubKeyInfo(
- const DERItem *content,
- int verbose)
-{
- DERReturn drtn;
- DERSubjPubKeyInfo pubKeyInfo;
- DERRSAPubKeyPKCS1 pkcs1Key;
- DERItem bitStringContents;
- DERByte numUnused;
-
- drtn = DERParseSequence(content,
- DERNumSubjPubKeyInfoItemSpecs, DERSubjPubKeyInfoItemSpecs,
- &pubKeyInfo, sizeof(pubKeyInfo));
- if(drtn) {
- DERPerror("DERParseSequenceContent(pubKeyInfo)", drtn);
- return;
- }
- printItem("algId", IT_Branch, verbose, ASN1_CONSTR_SEQUENCE, &pubKeyInfo.algId);
- incrIndent();
- printAlgId(&pubKeyInfo.algId, verbose);
- decrIndent();
-
- printItem("pubKey", IT_Branch, verbose, ASN1_BIT_STRING, &pubKeyInfo.pubKey);
-
- /*
- * The contents of that bit string are a PKCS1 format RSA key.
- */
- drtn = DERParseBitString(&pubKeyInfo.pubKey, &bitStringContents, &numUnused);
- if(drtn) {
- DERPerror("DERParseBitString(pubKeyInfo.pubKey)", drtn);
- decrIndent();
- return;
- }
- drtn = DERParseSequence(&bitStringContents,
- DERNumRSAPubKeyPKCS1ItemSpecs, DERRSAPubKeyPKCS1ItemSpecs,
- &pkcs1Key, sizeof(pkcs1Key));
- if(drtn) {
- DERPerror("DERParseSequenceContent(pubKeyBits)", drtn);
- decrIndent();
- return;
- }
- incrIndent();
- printItem("modulus", IT_Leaf, verbose, ASN1_INTEGER, &pkcs1Key.modulus);
- printItem("pubExponent", IT_Leaf, verbose, ASN1_INTEGER, &pkcs1Key.pubExponent);
-
- decrIndent();
-}
-
-/* decode one item and print it */
-void decodePrintItem(
- const char *label,
- ItemType itemType,
- int verbose,
- DERItem *derItem)
-{
- DERDecodedInfo decoded;
- DERReturn drtn;
-
- drtn = DERDecodeItem(derItem, &decoded);
- if(drtn) {
- DERPerror("DERDecodeItem()", drtn);
- return;
- }
- printItem(label, IT_Leaf, 0, decoded.tag, &decoded.content);
-}
-
projects / apple / security.git / blobdiff