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-rw-r--r--openssl/apps/asn1pars.c444
1 files changed, 444 insertions, 0 deletions
diff --git a/openssl/apps/asn1pars.c b/openssl/apps/asn1pars.c
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+++ b/openssl/apps/asn1pars.c
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+/* apps/asn1pars.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.]
+ */
+
+/* A nice addition from Dr Stephen Henson <steve@openssl.org> to
+ * add the -strparse option which parses nested binary structures
+ */
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include "apps.h"
+#include <openssl/err.h>
+#include <openssl/evp.h>
+#include <openssl/x509.h>
+#include <openssl/pem.h>
+
+/* -inform arg - input format - default PEM (DER or PEM)
+ * -in arg - input file - default stdin
+ * -i - indent the details by depth
+ * -offset - where in the file to start
+ * -length - how many bytes to use
+ * -oid file - extra oid description file
+ */
+
+#undef PROG
+#define PROG asn1parse_main
+
+int MAIN(int, char **);
+
+static int do_generate(BIO *bio, char *genstr, char *genconf, BUF_MEM *buf);
+
+int MAIN(int argc, char **argv)
+ {
+ int i,badops=0,offset=0,ret=1,j;
+ unsigned int length=0;
+ long num,tmplen;
+ BIO *in=NULL,*out=NULL,*b64=NULL, *derout = NULL;
+ int informat,indent=0, noout = 0, dump = 0;
+ char *infile=NULL,*str=NULL,*prog,*oidfile=NULL, *derfile=NULL;
+ char *genstr=NULL, *genconf=NULL;
+ unsigned char *tmpbuf;
+ const unsigned char *ctmpbuf;
+ BUF_MEM *buf=NULL;
+ STACK *osk=NULL;
+ ASN1_TYPE *at=NULL;
+
+ informat=FORMAT_PEM;
+
+ apps_startup();
+
+ if (bio_err == NULL)
+ if ((bio_err=BIO_new(BIO_s_file())) != NULL)
+ BIO_set_fp(bio_err,stderr,BIO_NOCLOSE|BIO_FP_TEXT);
+
+ if (!load_config(bio_err, NULL))
+ goto end;
+
+ prog=argv[0];
+ argc--;
+ argv++;
+ if ((osk=sk_new_null()) == NULL)
+ {
+ BIO_printf(bio_err,"Memory allocation failure\n");
+ goto end;
+ }
+ while (argc >= 1)
+ {
+ if (strcmp(*argv,"-inform") == 0)
+ {
+ if (--argc < 1) goto bad;
+ informat=str2fmt(*(++argv));
+ }
+ else if (strcmp(*argv,"-in") == 0)
+ {
+ if (--argc < 1) goto bad;
+ infile= *(++argv);
+ }
+ else if (strcmp(*argv,"-out") == 0)
+ {
+ if (--argc < 1) goto bad;
+ derfile= *(++argv);
+ }
+ else if (strcmp(*argv,"-i") == 0)
+ {
+ indent=1;
+ }
+ else if (strcmp(*argv,"-noout") == 0) noout = 1;
+ else if (strcmp(*argv,"-oid") == 0)
+ {
+ if (--argc < 1) goto bad;
+ oidfile= *(++argv);
+ }
+ else if (strcmp(*argv,"-offset") == 0)
+ {
+ if (--argc < 1) goto bad;
+ offset= atoi(*(++argv));
+ }
+ else if (strcmp(*argv,"-length") == 0)
+ {
+ if (--argc < 1) goto bad;
+ length= atoi(*(++argv));
+ if (length == 0) goto bad;
+ }
+ else if (strcmp(*argv,"-dump") == 0)
+ {
+ dump= -1;
+ }
+ else if (strcmp(*argv,"-dlimit") == 0)
+ {
+ if (--argc < 1) goto bad;
+ dump= atoi(*(++argv));
+ if (dump <= 0) goto bad;
+ }
+ else if (strcmp(*argv,"-strparse") == 0)
+ {
+ if (--argc < 1) goto bad;
+ sk_push(osk,*(++argv));
+ }
+ else if (strcmp(*argv,"-genstr") == 0)
+ {
+ if (--argc < 1) goto bad;
+ genstr= *(++argv);
+ }
+ else if (strcmp(*argv,"-genconf") == 0)
+ {
+ if (--argc < 1) goto bad;
+ genconf= *(++argv);
+ }
+ else
+ {
+ BIO_printf(bio_err,"unknown option %s\n",*argv);
+ badops=1;
+ break;
+ }
+ argc--;
+ argv++;
+ }
+
+ if (badops)
+ {
+bad:
+ BIO_printf(bio_err,"%s [options] <infile\n",prog);
+ BIO_printf(bio_err,"where options are\n");
+ BIO_printf(bio_err," -inform arg input format - one of DER PEM\n");
+ BIO_printf(bio_err," -in arg input file\n");
+ BIO_printf(bio_err," -out arg output file (output format is always DER\n");
+ BIO_printf(bio_err," -noout arg don't produce any output\n");
+ BIO_printf(bio_err," -offset arg offset into file\n");
+ BIO_printf(bio_err," -length arg length of section in file\n");
+ BIO_printf(bio_err," -i indent entries\n");
+ BIO_printf(bio_err," -dump dump unknown data in hex form\n");
+ BIO_printf(bio_err," -dlimit arg dump the first arg bytes of unknown data in hex form\n");
+ BIO_printf(bio_err," -oid file file of extra oid definitions\n");
+ BIO_printf(bio_err," -strparse offset\n");
+ BIO_printf(bio_err," a series of these can be used to 'dig' into multiple\n");
+ BIO_printf(bio_err," ASN1 blob wrappings\n");
+ BIO_printf(bio_err," -genstr str string to generate ASN1 structure from\n");
+ BIO_printf(bio_err," -genconf file file to generate ASN1 structure from\n");
+ goto end;
+ }
+
+ ERR_load_crypto_strings();
+
+ in=BIO_new(BIO_s_file());
+ out=BIO_new(BIO_s_file());
+ if ((in == NULL) || (out == NULL))
+ {
+ ERR_print_errors(bio_err);
+ goto end;
+ }
+ BIO_set_fp(out,stdout,BIO_NOCLOSE|BIO_FP_TEXT);
+#ifdef OPENSSL_SYS_VMS
+ {
+ BIO *tmpbio = BIO_new(BIO_f_linebuffer());
+ out = BIO_push(tmpbio, out);
+ }
+#endif
+
+ if (oidfile != NULL)
+ {
+ if (BIO_read_filename(in,oidfile) <= 0)
+ {
+ BIO_printf(bio_err,"problems opening %s\n",oidfile);
+ ERR_print_errors(bio_err);
+ goto end;
+ }
+ OBJ_create_objects(in);
+ }
+
+ if (infile == NULL)
+ BIO_set_fp(in,stdin,BIO_NOCLOSE);
+ else
+ {
+ if (BIO_read_filename(in,infile) <= 0)
+ {
+ perror(infile);
+ goto end;
+ }
+ }
+
+ if (derfile) {
+ if(!(derout = BIO_new_file(derfile, "wb"))) {
+ BIO_printf(bio_err,"problems opening %s\n",derfile);
+ ERR_print_errors(bio_err);
+ goto end;
+ }
+ }
+
+ if ((buf=BUF_MEM_new()) == NULL) goto end;
+ if (!BUF_MEM_grow(buf,BUFSIZ*8)) goto end; /* Pre-allocate :-) */
+
+ if (genstr || genconf)
+ {
+ num = do_generate(bio_err, genstr, genconf, buf);
+ if (num < 0)
+ {
+ ERR_print_errors(bio_err);
+ goto end;
+ }
+ }
+
+ else
+ {
+
+ if (informat == FORMAT_PEM)
+ {
+ BIO *tmp;
+
+ if ((b64=BIO_new(BIO_f_base64())) == NULL)
+ goto end;
+ BIO_push(b64,in);
+ tmp=in;
+ in=b64;
+ b64=tmp;
+ }
+
+ num=0;
+ for (;;)
+ {
+ if (!BUF_MEM_grow(buf,(int)num+BUFSIZ)) goto end;
+ i=BIO_read(in,&(buf->data[num]),BUFSIZ);
+ if (i <= 0) break;
+ num+=i;
+ }
+ }
+ str=buf->data;
+
+ /* If any structs to parse go through in sequence */
+
+ if (sk_num(osk))
+ {
+ tmpbuf=(unsigned char *)str;
+ tmplen=num;
+ for (i=0; i<sk_num(osk); i++)
+ {
+ ASN1_TYPE *atmp;
+ int typ;
+ j=atoi(sk_value(osk,i));
+ if (j == 0)
+ {
+ BIO_printf(bio_err,"'%s' is an invalid number\n",sk_value(osk,i));
+ continue;
+ }
+ tmpbuf+=j;
+ tmplen-=j;
+ atmp = at;
+ ctmpbuf = tmpbuf;
+ at = d2i_ASN1_TYPE(NULL,&ctmpbuf,tmplen);
+ ASN1_TYPE_free(atmp);
+ if(!at)
+ {
+ BIO_printf(bio_err,"Error parsing structure\n");
+ ERR_print_errors(bio_err);
+ goto end;
+ }
+ typ = ASN1_TYPE_get(at);
+ if ((typ == V_ASN1_OBJECT)
+ || (typ == V_ASN1_NULL))
+ {
+ BIO_printf(bio_err, "Can't parse %s type\n",
+ typ == V_ASN1_NULL ? "NULL" : "OBJECT");
+ ERR_print_errors(bio_err);
+ goto end;
+ }
+ /* hmm... this is a little evil but it works */
+ tmpbuf=at->value.asn1_string->data;
+ tmplen=at->value.asn1_string->length;
+ }
+ str=(char *)tmpbuf;
+ num=tmplen;
+ }
+
+ if (offset >= num)
+ {
+ BIO_printf(bio_err, "Error: offset too large\n");
+ goto end;
+ }
+
+ num -= offset;
+
+ if ((length == 0) || ((long)length > num)) length=(unsigned int)num;
+ if(derout) {
+ if(BIO_write(derout, str + offset, length) != (int)length) {
+ BIO_printf(bio_err, "Error writing output\n");
+ ERR_print_errors(bio_err);
+ goto end;
+ }
+ }
+ if (!noout &&
+ !ASN1_parse_dump(out,(unsigned char *)&(str[offset]),length,
+ indent,dump))
+ {
+ ERR_print_errors(bio_err);
+ goto end;
+ }
+ ret=0;
+end:
+ BIO_free(derout);
+ if (in != NULL) BIO_free(in);
+ if (out != NULL) BIO_free_all(out);
+ if (b64 != NULL) BIO_free(b64);
+ if (ret != 0)
+ ERR_print_errors(bio_err);
+ if (buf != NULL) BUF_MEM_free(buf);
+ if (at != NULL) ASN1_TYPE_free(at);
+ if (osk != NULL) sk_free(osk);
+ OBJ_cleanup();
+ apps_shutdown();
+ OPENSSL_EXIT(ret);
+ }
+
+static int do_generate(BIO *bio, char *genstr, char *genconf, BUF_MEM *buf)
+ {
+ CONF *cnf = NULL;
+ int len;
+ long errline;
+ unsigned char *p;
+ ASN1_TYPE *atyp = NULL;
+
+ if (genconf)
+ {
+ cnf = NCONF_new(NULL);
+ if (!NCONF_load(cnf, genconf, &errline))
+ goto conferr;
+ if (!genstr)
+ genstr = NCONF_get_string(cnf, "default", "asn1");
+ if (!genstr)
+ {
+ BIO_printf(bio, "Can't find 'asn1' in '%s'\n", genconf);
+ goto err;
+ }
+ }
+
+ atyp = ASN1_generate_nconf(genstr, cnf);
+ NCONF_free(cnf);
+
+ if (!atyp)
+ return -1;
+
+ len = i2d_ASN1_TYPE(atyp, NULL);
+
+ if (len <= 0)
+ goto err;
+
+ if (!BUF_MEM_grow(buf,len))
+ goto err;
+
+ p=(unsigned char *)buf->data;
+
+ i2d_ASN1_TYPE(atyp, &p);
+
+ ASN1_TYPE_free(atyp);
+ return len;
+
+ conferr:
+
+ if (errline > 0)
+ BIO_printf(bio, "Error on line %ld of config file '%s'\n",
+ errline, genconf);
+ else
+ BIO_printf(bio, "Error loading config file '%s'\n", genconf);
+
+ err:
+ NCONF_free(cnf);
+ ASN1_TYPE_free(atyp);
+
+ return -1;
+
+ }
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