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-rw-r--r--apps/asn1pars.c513
1 files changed, 220 insertions, 293 deletions
diff --git a/apps/asn1pars.c b/apps/asn1pars.c
index 0a6b990b503d..62c70b9cc440 100644
--- a/apps/asn1pars.c
+++ b/apps/asn1pars.c
@@ -1,302 +1,233 @@
-/* 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
+ * Copyright 1995-2018 The OpenSSL Project Authors. All Rights Reserved.
+ *
+ * Licensed under the OpenSSL license (the "License"). You may not use
+ * this file except in compliance with the License. You can obtain a copy
+ * in the file LICENSE in the source distribution or at
+ * https://www.openssl.org/source/license.html
*/
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include "apps.h"
+#include "progs.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)
+#include <openssl/asn1t.h>
+
+typedef enum OPTION_choice {
+ OPT_ERR = -1, OPT_EOF = 0, OPT_HELP,
+ OPT_INFORM, OPT_IN, OPT_OUT, OPT_INDENT, OPT_NOOUT,
+ OPT_OID, OPT_OFFSET, OPT_LENGTH, OPT_DUMP, OPT_DLIMIT,
+ OPT_STRPARSE, OPT_GENSTR, OPT_GENCONF, OPT_STRICTPEM,
+ OPT_ITEM
+} OPTION_CHOICE;
+
+const OPTIONS asn1parse_options[] = {
+ {"help", OPT_HELP, '-', "Display this summary"},
+ {"inform", OPT_INFORM, 'F', "input format - one of DER PEM"},
+ {"in", OPT_IN, '<', "input file"},
+ {"out", OPT_OUT, '>', "output file (output format is always DER)"},
+ {"i", OPT_INDENT, 0, "indents the output"},
+ {"noout", OPT_NOOUT, 0, "do not produce any output"},
+ {"offset", OPT_OFFSET, 'p', "offset into file"},
+ {"length", OPT_LENGTH, 'p', "length of section in file"},
+ {"oid", OPT_OID, '<', "file of extra oid definitions"},
+ {"dump", OPT_DUMP, 0, "unknown data in hex form"},
+ {"dlimit", OPT_DLIMIT, 'p',
+ "dump the first arg bytes of unknown data in hex form"},
+ {"strparse", OPT_STRPARSE, 'p',
+ "offset; a series of these can be used to 'dig'"},
+ {OPT_MORE_STR, 0, 0, "into multiple ASN1 blob wrappings"},
+ {"genstr", OPT_GENSTR, 's', "string to generate ASN1 structure from"},
+ {"genconf", OPT_GENCONF, 's', "file to generate ASN1 structure from"},
+ {OPT_MORE_STR, 0, 0, "(-inform will be ignored)"},
+ {"strictpem", OPT_STRICTPEM, 0,
+ "do not attempt base64 decode outside PEM markers"},
+ {"item", OPT_ITEM, 's', "item to parse and print"},
+ {NULL}
+};
+
+static int do_generate(char *genstr, const char *genconf, BUF_MEM *buf);
+
+int asn1parse_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;
+ ASN1_TYPE *at = NULL;
+ BIO *in = NULL, *b64 = NULL, *derout = NULL;
BUF_MEM *buf = NULL;
STACK_OF(OPENSSL_STRING) *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);
+ char *genstr = NULL, *genconf = NULL;
+ char *infile = NULL, *oidfile = NULL, *derfile = NULL;
+ unsigned char *str = NULL;
+ char *name = NULL, *header = NULL, *prog;
+ const unsigned char *ctmpbuf;
+ int indent = 0, noout = 0, dump = 0, strictpem = 0, informat = FORMAT_PEM;
+ int offset = 0, ret = 1, i, j;
+ long num, tmplen;
+ unsigned char *tmpbuf;
+ unsigned int length = 0;
+ OPTION_CHOICE o;
+ const ASN1_ITEM *it = NULL;
- if (!load_config(bio_err, NULL))
- goto end;
+ prog = opt_init(argc, argv, asn1parse_options);
- prog = argv[0];
- argc--;
- argv++;
if ((osk = sk_OPENSSL_STRING_new_null()) == NULL) {
- BIO_printf(bio_err, "Memory allocation failure\n");
+ BIO_printf(bio_err, "%s: Memory allocation failure\n", prog);
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) {
+
+ while ((o = opt_next()) != OPT_EOF) {
+ switch (o) {
+ case OPT_EOF:
+ case OPT_ERR:
+ opthelp:
+ BIO_printf(bio_err, "%s: Use -help for summary.\n", prog);
+ goto end;
+ case OPT_HELP:
+ opt_help(asn1parse_options);
+ ret = 0;
+ goto end;
+ case OPT_INFORM:
+ if (!opt_format(opt_arg(), OPT_FMT_PEMDER, &informat))
+ goto opthelp;
+ break;
+ case OPT_IN:
+ infile = opt_arg();
+ break;
+ case OPT_OUT:
+ derfile = opt_arg();
+ break;
+ case OPT_INDENT:
indent = 1;
- } else if (strcmp(*argv, "-noout") == 0)
+ break;
+ case OPT_NOOUT:
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) {
+ break;
+ case OPT_OID:
+ oidfile = opt_arg();
+ break;
+ case OPT_OFFSET:
+ offset = strtol(opt_arg(), NULL, 0);
+ break;
+ case OPT_LENGTH:
+ length = strtol(opt_arg(), NULL, 0);
+ break;
+ case OPT_DUMP:
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_OPENSSL_STRING_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;
+ case OPT_DLIMIT:
+ dump = strtol(opt_arg(), NULL, 0);
+ break;
+ case OPT_STRPARSE:
+ sk_OPENSSL_STRING_push(osk, opt_arg());
+ break;
+ case OPT_GENSTR:
+ genstr = opt_arg();
+ break;
+ case OPT_GENCONF:
+ genconf = opt_arg();
+ break;
+ case OPT_STRICTPEM:
+ strictpem = 1;
+ informat = FORMAT_PEM;
+ break;
+ case OPT_ITEM:
+ it = ASN1_ITEM_lookup(opt_arg());
+ if (it == NULL) {
+ size_t tmp;
+
+ BIO_printf(bio_err, "Unknown item name %s\n", opt_arg());
+ BIO_puts(bio_err, "Supported types:\n");
+ for (tmp = 0;; tmp++) {
+ it = ASN1_ITEM_get(tmp);
+ if (it == NULL)
+ break;
+ BIO_printf(bio_err, " %s\n", it->sname);
+ }
+ goto end;
+ }
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
+ argc = opt_num_rest();
+ if (argc != 0)
+ goto opthelp;
if (oidfile != NULL) {
- if (BIO_read_filename(in, oidfile) <= 0) {
- BIO_printf(bio_err, "problems opening %s\n", oidfile);
- ERR_print_errors(bio_err);
+ in = bio_open_default(oidfile, 'r', FORMAT_TEXT);
+ if (in == NULL)
goto end;
- }
OBJ_create_objects(in);
+ BIO_free(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 ((in = bio_open_default(infile, 'r', informat)) == NULL)
+ goto end;
- if ((buf = BUF_MEM_new()) == NULL)
+ if (derfile && (derout = bio_open_default(derfile, 'w', FORMAT_ASN1)) == 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) {
+ if (strictpem) {
+ if (PEM_read_bio(in, &name, &header, &str, &num) !=
+ 1) {
+ BIO_printf(bio_err, "Error reading PEM file\n");
ERR_print_errors(bio_err);
goto end;
}
- }
-
- else {
+ } else {
- if (informat == FORMAT_PEM) {
- BIO *tmp;
+ if ((buf = BUF_MEM_new()) == NULL)
+ goto end;
+ if (!BUF_MEM_grow(buf, BUFSIZ * 8))
+ goto end; /* Pre-allocate :-) */
- if ((b64 = BIO_new(BIO_f_base64())) == NULL)
+ if (genstr || genconf) {
+ num = do_generate(genstr, genconf, buf);
+ if (num < 0) {
+ ERR_print_errors(bio_err);
goto end;
- BIO_push(b64, in);
- tmp = in;
- in = b64;
- b64 = tmp;
- }
+ }
+ } else {
- 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;
+ 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, num + BUFSIZ))
+ goto end;
+ i = BIO_read(in, &(buf->data[num]), BUFSIZ);
+ if (i <= 0)
+ break;
+ num += i;
+ }
}
+ str = (unsigned char *)buf->data;
+
}
- str = buf->data;
/* If any structs to parse go through in sequence */
if (sk_OPENSSL_STRING_num(osk)) {
- tmpbuf = (unsigned char *)str;
+ tmpbuf = str;
tmplen = num;
for (i = 0; i < sk_OPENSSL_STRING_num(osk); i++) {
ASN1_TYPE *atmp;
int typ;
- j = atoi(sk_OPENSSL_STRING_value(osk, i));
- if (j == 0) {
- BIO_printf(bio_err, "'%s' is an invalid number\n",
+ j = strtol(sk_OPENSSL_STRING_value(osk, i), NULL, 0);
+ if (j <= 0 || j >= tmplen) {
+ BIO_printf(bio_err, "'%s' is out of range\n",
sk_OPENSSL_STRING_value(osk, i));
continue;
}
@@ -323,70 +254,76 @@ int MAIN(int argc, char **argv)
tmpbuf = at->value.asn1_string->data;
tmplen = at->value.asn1_string->length;
}
- str = (char *)tmpbuf;
+ str = tmpbuf;
num = tmplen;
}
- if (offset >= num) {
- BIO_printf(bio_err, "Error: offset too large\n");
+ if (offset < 0 || offset >= num) {
+ BIO_printf(bio_err, "Error: offset out of range\n");
goto end;
}
num -= offset;
- if ((length == 0) || ((long)length > num))
+ if (length == 0 || length > (unsigned int)num)
length = (unsigned int)num;
- if (derout) {
+ if (derout != NULL) {
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;
+ if (!noout) {
+ const unsigned char *p = str + offset;
+
+ if (it != NULL) {
+ ASN1_VALUE *value = ASN1_item_d2i(NULL, &p, length, it);
+ if (value == NULL) {
+ BIO_printf(bio_err, "Error parsing item %s\n", it->sname);
+ ERR_print_errors(bio_err);
+ goto end;
+ }
+ ASN1_item_print(bio_out, value, 0, it, NULL);
+ ASN1_item_free(value, it);
+ } else {
+ if (!ASN1_parse_dump(bio_out, p, 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);
+ BIO_free(in);
+ 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_OPENSSL_STRING_free(osk);
- OBJ_cleanup();
- apps_shutdown();
- OPENSSL_EXIT(ret);
+ BUF_MEM_free(buf);
+ OPENSSL_free(name);
+ OPENSSL_free(header);
+ if (strictpem)
+ OPENSSL_free(str);
+ ASN1_TYPE_free(at);
+ sk_OPENSSL_STRING_free(osk);
+ return ret;
}
-static int do_generate(BIO *bio, char *genstr, char *genconf, BUF_MEM *buf)
+static int do_generate(char *genstr, const char *genconf, BUF_MEM *buf)
{
CONF *cnf = NULL;
int len;
- long errline = 0;
unsigned char *p;
ASN1_TYPE *atyp = NULL;
- if (genconf) {
- cnf = NCONF_new(NULL);
- if (!NCONF_load(cnf, genconf, &errline))
- goto conferr;
- if (!genstr)
+ if (genconf != NULL) {
+ if ((cnf = app_load_config(genconf)) == NULL)
+ goto err;
+ if (genstr == NULL)
genstr = NCONF_get_string(cnf, "default", "asn1");
- if (!genstr) {
- BIO_printf(bio, "Can't find 'asn1' in '%s'\n", genconf);
+ if (genstr == NULL) {
+ BIO_printf(bio_err, "Can't find 'asn1' in '%s'\n", genconf);
goto err;
}
}
@@ -395,7 +332,7 @@ static int do_generate(BIO *bio, char *genstr, char *genconf, BUF_MEM *buf)
NCONF_free(cnf);
cnf = NULL;
- if (!atyp)
+ if (atyp == NULL)
return -1;
len = i2d_ASN1_TYPE(atyp, NULL);
@@ -413,18 +350,8 @@ static int do_generate(BIO *bio, char *genstr, char *genconf, BUF_MEM *buf)
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;
-
}