--- /dev/null
+/*
+ * 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 = DERParseSequenceContent(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