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Diffstat (limited to 'openssl/crypto/asn1/asn1_par.c')
-rw-r--r--openssl/crypto/asn1/asn1_par.c444
1 files changed, 444 insertions, 0 deletions
diff --git a/openssl/crypto/asn1/asn1_par.c b/openssl/crypto/asn1/asn1_par.c
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index 000000000..8657f73d6
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+++ b/openssl/crypto/asn1/asn1_par.c
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+/* crypto/asn1/asn1_par.c */
+/* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
+ * All rights reserved.
+ *
+ * This package is an SSL implementation written
+ * by Eric Young (eay@cryptsoft.com).
+ * The implementation was written so as to conform with Netscapes SSL.
+ *
+ * This library is free for commercial and non-commercial use as long as
+ * the following conditions are aheared to. The following conditions
+ * apply to all code found in this distribution, be it the RC4, RSA,
+ * lhash, DES, etc., code; not just the SSL code. The SSL documentation
+ * included with this distribution is covered by the same copyright terms
+ * except that the holder is Tim Hudson (tjh@cryptsoft.com).
+ *
+ * Copyright remains Eric Young's, and as such any Copyright notices in
+ * the code are not to be removed.
+ * If this package is used in a product, Eric Young should be given attribution
+ * as the author of the parts of the library used.
+ * This can be in the form of a textual message at program startup or
+ * in documentation (online or textual) provided with the package.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the copyright
+ * notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ * 3. All advertising materials mentioning features or use of this software
+ * must display the following acknowledgement:
+ * "This product includes cryptographic software written by
+ * Eric Young (eay@cryptsoft.com)"
+ * The word 'cryptographic' can be left out if the rouines from the library
+ * being used are not cryptographic related :-).
+ * 4. If you include any Windows specific code (or a derivative thereof) from
+ * the apps directory (application code) you must include an acknowledgement:
+ * "This product includes software written by Tim Hudson (tjh@cryptsoft.com)"
+ *
+ * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+ * The licence and distribution terms for any publically available version or
+ * derivative of this code cannot be changed. i.e. this code cannot simply be
+ * copied and put under another distribution licence
+ * [including the GNU Public Licence.]
+ */
+
+#include <stdio.h>
+#include "cryptlib.h"
+#include <openssl/buffer.h>
+#include <openssl/objects.h>
+#include <openssl/asn1.h>
+
+static int asn1_print_info(BIO *bp, int tag, int xclass,int constructed,
+ int indent);
+static int asn1_parse2(BIO *bp, const unsigned char **pp, long length,
+ int offset, int depth, int indent, int dump);
+static int asn1_print_info(BIO *bp, int tag, int xclass, int constructed,
+ int indent)
+ {
+ static const char fmt[]="%-18s";
+ static const char fmt2[]="%2d %-15s";
+ char str[128];
+ const char *p,*p2=NULL;
+
+ if (constructed & V_ASN1_CONSTRUCTED)
+ p="cons: ";
+ else
+ p="prim: ";
+ if (BIO_write(bp,p,6) < 6) goto err;
+ BIO_indent(bp,indent,128);
+
+ p=str;
+ if ((xclass & V_ASN1_PRIVATE) == V_ASN1_PRIVATE)
+ BIO_snprintf(str,sizeof str,"priv [ %d ] ",tag);
+ else if ((xclass & V_ASN1_CONTEXT_SPECIFIC) == V_ASN1_CONTEXT_SPECIFIC)
+ BIO_snprintf(str,sizeof str,"cont [ %d ]",tag);
+ else if ((xclass & V_ASN1_APPLICATION) == V_ASN1_APPLICATION)
+ BIO_snprintf(str,sizeof str,"appl [ %d ]",tag);
+ else if (tag > 30)
+ BIO_snprintf(str,sizeof str,"<ASN1 %d>",tag);
+ else
+ p = ASN1_tag2str(tag);
+
+ if (p2 != NULL)
+ {
+ if (BIO_printf(bp,fmt2,tag,p2) <= 0) goto err;
+ }
+ else
+ {
+ if (BIO_printf(bp,fmt,p) <= 0) goto err;
+ }
+ return(1);
+err:
+ return(0);
+ }
+
+int ASN1_parse(BIO *bp, const unsigned char *pp, long len, int indent)
+ {
+ return(asn1_parse2(bp,&pp,len,0,0,indent,0));
+ }
+
+int ASN1_parse_dump(BIO *bp, const unsigned char *pp, long len, int indent, int dump)
+ {
+ return(asn1_parse2(bp,&pp,len,0,0,indent,dump));
+ }
+
+static int asn1_parse2(BIO *bp, const unsigned char **pp, long length, int offset,
+ int depth, int indent, int dump)
+ {
+ const unsigned char *p,*ep,*tot,*op,*opp;
+ long len;
+ int tag,xclass,ret=0;
+ int nl,hl,j,r;
+ ASN1_OBJECT *o=NULL;
+ ASN1_OCTET_STRING *os=NULL;
+ /* ASN1_BMPSTRING *bmp=NULL;*/
+ int dump_indent;
+
+#if 0
+ dump_indent = indent;
+#else
+ dump_indent = 6; /* Because we know BIO_dump_indent() */
+#endif
+ p= *pp;
+ tot=p+length;
+ op=p-1;
+ while ((p < tot) && (op < p))
+ {
+ op=p;
+ j=ASN1_get_object(&p,&len,&tag,&xclass,length);
+#ifdef LINT
+ j=j;
+#endif
+ if (j & 0x80)
+ {
+ if (BIO_write(bp,"Error in encoding\n",18) <= 0)
+ goto end;
+ ret=0;
+ goto end;
+ }
+ hl=(p-op);
+ length-=hl;
+ /* if j == 0x21 it is a constructed indefinite length object */
+ if (BIO_printf(bp,"%5ld:",(long)offset+(long)(op- *pp))
+ <= 0) goto end;
+
+ if (j != (V_ASN1_CONSTRUCTED | 1))
+ {
+ if (BIO_printf(bp,"d=%-2d hl=%ld l=%4ld ",
+ depth,(long)hl,len) <= 0)
+ goto end;
+ }
+ else
+ {
+ if (BIO_printf(bp,"d=%-2d hl=%ld l=inf ",
+ depth,(long)hl) <= 0)
+ goto end;
+ }
+ if (!asn1_print_info(bp,tag,xclass,j,(indent)?depth:0))
+ goto end;
+ if (j & V_ASN1_CONSTRUCTED)
+ {
+ ep=p+len;
+ if (BIO_write(bp,"\n",1) <= 0) goto end;
+ if (len > length)
+ {
+ BIO_printf(bp,
+ "length is greater than %ld\n",length);
+ ret=0;
+ goto end;
+ }
+ if ((j == 0x21) && (len == 0))
+ {
+ for (;;)
+ {
+ r=asn1_parse2(bp,&p,(long)(tot-p),
+ offset+(p - *pp),depth+1,
+ indent,dump);
+ if (r == 0) { ret=0; goto end; }
+ if ((r == 2) || (p >= tot)) break;
+ }
+ }
+ else
+ while (p < ep)
+ {
+ r=asn1_parse2(bp,&p,(long)len,
+ offset+(p - *pp),depth+1,
+ indent,dump);
+ if (r == 0) { ret=0; goto end; }
+ }
+ }
+ else if (xclass != 0)
+ {
+ p+=len;
+ if (BIO_write(bp,"\n",1) <= 0) goto end;
+ }
+ else
+ {
+ nl=0;
+ if ( (tag == V_ASN1_PRINTABLESTRING) ||
+ (tag == V_ASN1_T61STRING) ||
+ (tag == V_ASN1_IA5STRING) ||
+ (tag == V_ASN1_VISIBLESTRING) ||
+ (tag == V_ASN1_NUMERICSTRING) ||
+ (tag == V_ASN1_UTF8STRING) ||
+ (tag == V_ASN1_UTCTIME) ||
+ (tag == V_ASN1_GENERALIZEDTIME))
+ {
+ if (BIO_write(bp,":",1) <= 0) goto end;
+ if ((len > 0) &&
+ BIO_write(bp,(const char *)p,(int)len)
+ != (int)len)
+ goto end;
+ }
+ else if (tag == V_ASN1_OBJECT)
+ {
+ opp=op;
+ if (d2i_ASN1_OBJECT(&o,&opp,len+hl) != NULL)
+ {
+ if (BIO_write(bp,":",1) <= 0) goto end;
+ i2a_ASN1_OBJECT(bp,o);
+ }
+ else
+ {
+ if (BIO_write(bp,":BAD OBJECT",11) <= 0)
+ goto end;
+ }
+ }
+ else if (tag == V_ASN1_BOOLEAN)
+ {
+ int ii;
+
+ opp=op;
+ ii=d2i_ASN1_BOOLEAN(NULL,&opp,len+hl);
+ if (ii < 0)
+ {
+ if (BIO_write(bp,"Bad boolean\n",12))
+ goto end;
+ }
+ BIO_printf(bp,":%d",ii);
+ }
+ else if (tag == V_ASN1_BMPSTRING)
+ {
+ /* do the BMP thang */
+ }
+ else if (tag == V_ASN1_OCTET_STRING)
+ {
+ int i,printable=1;
+
+ opp=op;
+ os=d2i_ASN1_OCTET_STRING(NULL,&opp,len+hl);
+ if (os != NULL && os->length > 0)
+ {
+ opp = os->data;
+ /* testing whether the octet string is
+ * printable */
+ for (i=0; i<os->length; i++)
+ {
+ if (( (opp[i] < ' ') &&
+ (opp[i] != '\n') &&
+ (opp[i] != '\r') &&
+ (opp[i] != '\t')) ||
+ (opp[i] > '~'))
+ {
+ printable=0;
+ break;
+ }
+ }
+ if (printable)
+ /* printable string */
+ {
+ if (BIO_write(bp,":",1) <= 0)
+ goto end;
+ if (BIO_write(bp,(const char *)opp,
+ os->length) <= 0)
+ goto end;
+ }
+ else if (!dump)
+ /* not printable => print octet string
+ * as hex dump */
+ {
+ if (BIO_write(bp,"[HEX DUMP]:",11) <= 0)
+ goto end;
+ for (i=0; i<os->length; i++)
+ {
+ if (BIO_printf(bp,"%02X"
+ , opp[i]) <= 0)
+ goto end;
+ }
+ }
+ else
+ /* print the normal dump */
+ {
+ if (!nl)
+ {
+ if (BIO_write(bp,"\n",1) <= 0)
+ goto end;
+ }
+ if (BIO_dump_indent(bp,
+ (const char *)opp,
+ ((dump == -1 || dump >
+ os->length)?os->length:dump),
+ dump_indent) <= 0)
+ goto end;
+ nl=1;
+ }
+ }
+ if (os != NULL)
+ {
+ M_ASN1_OCTET_STRING_free(os);
+ os=NULL;
+ }
+ }
+ else if (tag == V_ASN1_INTEGER)
+ {
+ ASN1_INTEGER *bs;
+ int i;
+
+ opp=op;
+ bs=d2i_ASN1_INTEGER(NULL,&opp,len+hl);
+ if (bs != NULL)
+ {
+ if (BIO_write(bp,":",1) <= 0) goto end;
+ if (bs->type == V_ASN1_NEG_INTEGER)
+ if (BIO_write(bp,"-",1) <= 0)
+ goto end;
+ for (i=0; i<bs->length; i++)
+ {
+ if (BIO_printf(bp,"%02X",
+ bs->data[i]) <= 0)
+ goto end;
+ }
+ if (bs->length == 0)
+ {
+ if (BIO_write(bp,"00",2) <= 0)
+ goto end;
+ }
+ }
+ else
+ {
+ if (BIO_write(bp,"BAD INTEGER",11) <= 0)
+ goto end;
+ }
+ M_ASN1_INTEGER_free(bs);
+ }
+ else if (tag == V_ASN1_ENUMERATED)
+ {
+ ASN1_ENUMERATED *bs;
+ int i;
+
+ opp=op;
+ bs=d2i_ASN1_ENUMERATED(NULL,&opp,len+hl);
+ if (bs != NULL)
+ {
+ if (BIO_write(bp,":",1) <= 0) goto end;
+ if (bs->type == V_ASN1_NEG_ENUMERATED)
+ if (BIO_write(bp,"-",1) <= 0)
+ goto end;
+ for (i=0; i<bs->length; i++)
+ {
+ if (BIO_printf(bp,"%02X",
+ bs->data[i]) <= 0)
+ goto end;
+ }
+ if (bs->length == 0)
+ {
+ if (BIO_write(bp,"00",2) <= 0)
+ goto end;
+ }
+ }
+ else
+ {
+ if (BIO_write(bp,"BAD ENUMERATED",11) <= 0)
+ goto end;
+ }
+ M_ASN1_ENUMERATED_free(bs);
+ }
+ else if (len > 0 && dump)
+ {
+ if (!nl)
+ {
+ if (BIO_write(bp,"\n",1) <= 0)
+ goto end;
+ }
+ if (BIO_dump_indent(bp,(const char *)p,
+ ((dump == -1 || dump > len)?len:dump),
+ dump_indent) <= 0)
+ goto end;
+ nl=1;
+ }
+
+ if (!nl)
+ {
+ if (BIO_write(bp,"\n",1) <= 0) goto end;
+ }
+ p+=len;
+ if ((tag == V_ASN1_EOC) && (xclass == 0))
+ {
+ ret=2; /* End of sequence */
+ goto end;
+ }
+ }
+ length-=len;
+ }
+ ret=1;
+end:
+ if (o != NULL) ASN1_OBJECT_free(o);
+ if (os != NULL) M_ASN1_OCTET_STRING_free(os);
+ *pp=p;
+ return(ret);
+ }
+
+const char *ASN1_tag2str(int tag)
+{
+ static const char *tag2str[] = {
+ "EOC", "BOOLEAN", "INTEGER", "BIT STRING", "OCTET STRING", /* 0-4 */
+ "NULL", "OBJECT", "OBJECT DESCRIPTOR", "EXTERNAL", "REAL", /* 5-9 */
+ "ENUMERATED", "<ASN1 11>", "UTF8STRING", "<ASN1 13>", /* 10-13 */
+ "<ASN1 14>", "<ASN1 15>", "SEQUENCE", "SET", /* 15-17 */
+ "NUMERICSTRING", "PRINTABLESTRING", "T61STRING", /* 18-20 */
+ "VIDEOTEXSTRING", "IA5STRING", "UTCTIME","GENERALIZEDTIME", /* 21-24 */
+ "GRAPHICSTRING", "VISIBLESTRING", "GENERALSTRING", /* 25-27 */
+ "UNIVERSALSTRING", "<ASN1 29>", "BMPSTRING" /* 28-30 */
+ };
+
+ if((tag == V_ASN1_NEG_INTEGER) || (tag == V_ASN1_NEG_ENUMERATED))
+ tag &= ~0x100;
+
+ if(tag < 0 || tag > 30) return "(unknown)";
+ return tag2str[tag];
+}
+
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