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[PATCH v23 02/33] libtasn1: import libtasn1-4.19.0
|
From: |
Gary Lin |
|
Subject: |
[PATCH v23 02/33] libtasn1: import libtasn1-4.19.0 |
|
Date: |
Fri, 15 Nov 2024 15:34:30 +0800 |
From: Daniel Axtens <dja@axtens.net>
Import a very trimmed-down set of libtasn1 files:
curl -L -O https://ftp.gnu.org/gnu/libtasn1/libtasn1-4.19.0.tar.gz
tar xf libtasn1-4.19.0.tar.gz
rm -rf grub-core/lib/libtasn1/
mkdir -p grub-core/lib/libtasn1/lib/
mkdir -p grub-core/lib/libtasn1/tests/
cp libtasn1-4.19.0/{README.md,COPYING} grub-core/lib/libtasn1/
cp
libtasn1-4.19.0/lib/{coding.c,decoding.c,element.c,element.h,errors.c,gstr.c,gstr.h,int.h,parser_aux.c,parser_aux.h,structure.c,structure.h}
grub-core/libtasn1/lib/
cp libtasn1-4.19.0/lib/includes/libtasn1.h grub-core/lib/libtasn1/
cp
libtasn1-4.19.0/tests/{CVE-2018-1000654-1_asn1_tab.h,CVE-2018-1000654-2_asn1_tab.h,CVE-2018-1000654.c,object-id-decoding.c,object-id-encoding.c,octet-string.c,reproducers.c,Test_overflow.c,Test_simple.c,Test_strings.c}
grub-core/lib/libtasn1/tests
rm -rf libtasn1-4.19.0*
Signed-off-by: Daniel Axtens <dja@axtens.net>
Signed-off-by: Gary Lin <glin@suse.com>
Reviewed-by: Vladimir Serbinenko <phcoder@gmail.com>
Reviewed-by: Daniel Kiper <daniel.kiper@oracle.com>
---
grub-core/lib/libtasn1/COPYING | 16 +
grub-core/lib/libtasn1/README.md | 98 +
grub-core/lib/libtasn1/lib/coding.c | 1425 ++++++++++
grub-core/lib/libtasn1/lib/decoding.c | 2501 +++++++++++++++++
grub-core/lib/libtasn1/lib/element.c | 1109 ++++++++
grub-core/lib/libtasn1/lib/element.h | 42 +
grub-core/lib/libtasn1/lib/errors.c | 100 +
grub-core/lib/libtasn1/lib/gstr.c | 74 +
grub-core/lib/libtasn1/lib/gstr.h | 50 +
grub-core/lib/libtasn1/lib/int.h | 221 ++
grub-core/lib/libtasn1/lib/parser_aux.c | 1178 ++++++++
grub-core/lib/libtasn1/lib/parser_aux.h | 172 ++
grub-core/lib/libtasn1/lib/structure.c | 1225 ++++++++
grub-core/lib/libtasn1/lib/structure.h | 46 +
grub-core/lib/libtasn1/libtasn1.h | 643 +++++
.../tests/CVE-2018-1000654-1_asn1_tab.h | 32 +
.../tests/CVE-2018-1000654-2_asn1_tab.h | 36 +
.../lib/libtasn1/tests/CVE-2018-1000654.c | 72 +
grub-core/lib/libtasn1/tests/Test_overflow.c | 168 ++
grub-core/lib/libtasn1/tests/Test_simple.c | 226 ++
grub-core/lib/libtasn1/tests/Test_strings.c | 156 +
.../lib/libtasn1/tests/object-id-decoding.c | 121 +
.../lib/libtasn1/tests/object-id-encoding.c | 133 +
grub-core/lib/libtasn1/tests/octet-string.c | 230 ++
grub-core/lib/libtasn1/tests/reproducers.c | 90 +
25 files changed, 10164 insertions(+)
create mode 100644 grub-core/lib/libtasn1/COPYING
create mode 100644 grub-core/lib/libtasn1/README.md
create mode 100644 grub-core/lib/libtasn1/lib/coding.c
create mode 100644 grub-core/lib/libtasn1/lib/decoding.c
create mode 100644 grub-core/lib/libtasn1/lib/element.c
create mode 100644 grub-core/lib/libtasn1/lib/element.h
create mode 100644 grub-core/lib/libtasn1/lib/errors.c
create mode 100644 grub-core/lib/libtasn1/lib/gstr.c
create mode 100644 grub-core/lib/libtasn1/lib/gstr.h
create mode 100644 grub-core/lib/libtasn1/lib/int.h
create mode 100644 grub-core/lib/libtasn1/lib/parser_aux.c
create mode 100644 grub-core/lib/libtasn1/lib/parser_aux.h
create mode 100644 grub-core/lib/libtasn1/lib/structure.c
create mode 100644 grub-core/lib/libtasn1/lib/structure.h
create mode 100644 grub-core/lib/libtasn1/libtasn1.h
create mode 100644 grub-core/lib/libtasn1/tests/CVE-2018-1000654-1_asn1_tab.h
create mode 100644 grub-core/lib/libtasn1/tests/CVE-2018-1000654-2_asn1_tab.h
create mode 100644 grub-core/lib/libtasn1/tests/CVE-2018-1000654.c
create mode 100644 grub-core/lib/libtasn1/tests/Test_overflow.c
create mode 100644 grub-core/lib/libtasn1/tests/Test_simple.c
create mode 100644 grub-core/lib/libtasn1/tests/Test_strings.c
create mode 100644 grub-core/lib/libtasn1/tests/object-id-decoding.c
create mode 100644 grub-core/lib/libtasn1/tests/object-id-encoding.c
create mode 100644 grub-core/lib/libtasn1/tests/octet-string.c
create mode 100644 grub-core/lib/libtasn1/tests/reproducers.c
diff --git a/grub-core/lib/libtasn1/COPYING b/grub-core/lib/libtasn1/COPYING
new file mode 100644
index 000000000..e8b3628db
--- /dev/null
+++ b/grub-core/lib/libtasn1/COPYING
@@ -0,0 +1,16 @@
+LICENSING
+=========
+
+The libtasn1 library is released under the GNU Lesser General Public
+License (LGPL) version 2.1 or later; see [COPYING.LESSER](doc/COPYING.LESSER)
+for the license terms.
+
+The GNU LGPL applies to the main libtasn1 library, while the
+included applications library are under the GNU GPL version 3.
+The libtasn1 library is located in the lib directory, while the applications
+in src/.
+
+The documentation in doc/ is under the GNU FDL license 1.3.
+
+For any copyright year range specified as YYYY-ZZZZ in this package
+note that the range specifies every single year in that closed interval.
diff --git a/grub-core/lib/libtasn1/README.md b/grub-core/lib/libtasn1/README.md
new file mode 100644
index 000000000..b0305b93e
--- /dev/null
+++ b/grub-core/lib/libtasn1/README.md
@@ -0,0 +1,98 @@
+# Libtasn1 README -- Introduction information
+
+This is GNU Libtasn1, a small ASN.1 library.
+
+The C library (libtasn1.*) is licensed under the GNU Lesser General
+Public License version 2.1 or later. See the file COPYING.LIB.
+
+The command line tool, self tests, examples, and other auxilliary
+files, are licensed under the GNU General Public License version 3.0
+or later. See the file COPYING.
+
+## Building the library
+
+We require several tools to build the software, including:
+
+* [Make](https://www.gnu.org/software/make/)
+* [Automake](https://www.gnu.org/software/automake/) (use 1.11.3 or later)
+* [Autoconf](https://www.gnu.org/software/autoconf/)
+* [Libtool](https://www.gnu.org/software/libtool/)
+* [Texinfo](https://www.gnu.org/software/texinfo/)
+* [help2man](http://www.gnu.org/software/help2man/)
+* [Tar](https://www.gnu.org/software/tar/)
+* [Gzip](https://www.gnu.org/software/gzip/)
+* [bison](https://www.gnu.org/software/bison/)
+* [Texlive & epsf](https://www.tug.org/texlive/) (for PDF manual)
+* [GTK-DOC](https://www.gtk.org/gtk-doc/) (for API manual)
+* [Git](https://git-scm.com/)
+* [libabigail](https://pagure.io/libabigail/) (for abi comparison in make dist)
+* [Valgrind](https://valgrind.org/) (optional)
+
+The required software is typically distributed with your operating
+system, and the instructions for installing them differ. Here are
+some hints:
+
+Debian/Ubuntu:
+```
+sudo apt-get install make git autoconf automake libtool bison
+sudo apt-get install texinfo help2man gtk-doc-tools valgrind abigail-tools
+```
+
+PDF manual - Debian <= stretch:
+```
+sudo apt-get install texlive-generic-recommended texlive texlive-extra-utils
+```
+
+PDF manual - Debian >= buster:
+```
+sudo apt-get install texlive-plain-generic texlive texlive-extra-utils
+```
+
+The next step is to run autoreconf, ./configure, etc:
+
+```
+$ ./bootstrap
+```
+
+Then build the project normally:
+
+```
+$ ./configure
+$ make check
+```
+
+Happy hacking!
+
+
+## Manual
+
+The manual is in the `doc/` directory of the release.
+
+You can also browse the manual online at:
+
+ - https://www.gnu.org/software/libtasn1/manual/
+ - https://gnutls.gitlab.io/libtasn1/manual/
+ - https://gnutls.gitlab.io/libtasn1/manual/libtasn1.html
+ - https://gnutls.gitlab.io/libtasn1/manual/libtasn1.pdf
+ - https://gnutls.gitlab.io/libtasn1/reference/
+ - https://gnutls.gitlab.io/libtasn1/reference/libtasn1.pdf
+
+
+## Code coverage report
+
+The coverage report is at:
+
+ - https://gnutls.gitlab.io/libtasn1/coverage
+
+
+## Issue trackers
+
+ - [Main issue tracker](https://gitlab.com/gnutls/libtasn1/issues)
+ - [oss-fuzz found
issues](https://bugs.chromium.org/p/oss-fuzz/issues/list?q=libtasn1&can=2)
+
+
+## Homepage
+
+The project homepage at the gnu site is at:
+
+https://www.gnu.org/software/libtasn1/
diff --git a/grub-core/lib/libtasn1/lib/coding.c
b/grub-core/lib/libtasn1/lib/coding.c
new file mode 100644
index 000000000..ea5bc370e
--- /dev/null
+++ b/grub-core/lib/libtasn1/lib/coding.c
@@ -0,0 +1,1425 @@
+/*
+ * Copyright (C) 2002-2022 Free Software Foundation, Inc.
+ *
+ * This file is part of LIBTASN1.
+ *
+ * The LIBTASN1 library is free software; you can redistribute it
+ * and/or modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
+ * 02110-1301, USA
+ */
+
+
+/*****************************************************/
+/* File: coding.c */
+/* Description: Functions to create a DER coding of */
+/* an ASN1 type. */
+/*****************************************************/
+
+#include <int.h>
+#include "parser_aux.h"
+#include <gstr.h>
+#include "element.h"
+#include "minmax.h"
+#include <structure.h>
+
+#define MAX_TAG_LEN 16
+
+/******************************************************/
+/* Function : _asn1_error_description_value_not_found */
+/* Description: creates the ErrorDescription string */
+/* for the ASN1_VALUE_NOT_FOUND error. */
+/* Parameters: */
+/* node: node of the tree where the value is NULL. */
+/* ErrorDescription: string returned. */
+/* Return: */
+/******************************************************/
+static void
+_asn1_error_description_value_not_found (asn1_node node,
+ char *ErrorDescription)
+{
+
+ if (ErrorDescription == NULL)
+ return;
+
+ Estrcpy (ErrorDescription, ":: value of element '");
+ _asn1_hierarchical_name (node, ErrorDescription + strlen (ErrorDescription),
+ ASN1_MAX_ERROR_DESCRIPTION_SIZE - 40);
+ Estrcat (ErrorDescription, "' not found");
+
+}
+
+/**
+ * asn1_length_der:
+ * @len: value to convert.
+ * @der: buffer to hold the returned encoding (may be %NULL).
+ * @der_len: number of meaningful bytes of ANS (der[0]..der[der_len-1]).
+ *
+ * Creates the DER encoding of the provided length value.
+ * The @der buffer must have enough room for the output. The maximum
+ * length this function will encode is %ASN1_MAX_LENGTH_SIZE.
+ *
+ * To know the size of the DER encoding use a %NULL value for @der.
+ **/
+void
+asn1_length_der (unsigned long int len, unsigned char *der, int *der_len)
+{
+ int k;
+ unsigned char temp[ASN1_MAX_LENGTH_SIZE];
+#if SIZEOF_UNSIGNED_LONG_INT > 8
+ len &= 0xFFFFFFFFFFFFFFFF;
+#endif
+
+ if (len < 128)
+ {
+ /* short form */
+ if (der != NULL)
+ der[0] = (unsigned char) len;
+ *der_len = 1;
+ }
+ else
+ {
+ /* Long form */
+ k = 0;
+ while (len)
+ {
+ temp[k++] = len & 0xFF;
+ len = len >> 8;
+ }
+ *der_len = k + 1;
+ if (der != NULL)
+ {
+ der[0] = ((unsigned char) k & 0x7F) + 128;
+ while (k--)
+ der[*der_len - 1 - k] = temp[k];
+ }
+ }
+}
+
+/******************************************************/
+/* Function : _asn1_tag_der */
+/* Description: creates the DER coding for the CLASS */
+/* and TAG parameters. */
+/* It is limited by the ASN1_MAX_TAG_SIZE variable */
+/* Parameters: */
+/* class: value to convert. */
+/* tag_value: value to convert. */
+/* ans: string returned. */
+/* ans_len: number of meaningful bytes of ANS */
+/* (ans[0]..ans[ans_len-1]). */
+/* Return: */
+/******************************************************/
+static void
+_asn1_tag_der (unsigned char class, unsigned int tag_value,
+ unsigned char ans[ASN1_MAX_TAG_SIZE], int *ans_len)
+{
+ int k;
+ unsigned char temp[ASN1_MAX_TAG_SIZE];
+
+ if (tag_value < 31)
+ {
+ /* short form */
+ ans[0] = (class & 0xE0) + ((unsigned char) (tag_value & 0x1F));
+ *ans_len = 1;
+ }
+ else
+ {
+ /* Long form */
+ ans[0] = (class & 0xE0) + 31;
+ k = 0;
+ while (tag_value != 0)
+ {
+ temp[k++] = tag_value & 0x7F;
+ tag_value >>= 7;
+
+ if (k > ASN1_MAX_TAG_SIZE - 1)
+ break; /* will not encode larger tags */
+ }
+ *ans_len = k + 1;
+ while (k--)
+ ans[*ans_len - 1 - k] = temp[k] + 128;
+ ans[*ans_len - 1] -= 128;
+ }
+}
+
+/**
+ * asn1_octet_der:
+ * @str: the input data.
+ * @str_len: STR length (str[0]..str[*str_len-1]).
+ * @der: encoded string returned.
+ * @der_len: number of meaningful bytes of DER (der[0]..der[der_len-1]).
+ *
+ * Creates a length-value DER encoding for the input data.
+ * The DER encoding of the input data will be placed in the @der variable.
+ *
+ * Note that the OCTET STRING tag is not included in the output.
+ *
+ * This function does not return any value because it is expected
+ * that @der_len will contain enough bytes to store the string
+ * plus the DER encoding. The DER encoding size can be obtained using
+ * asn1_length_der().
+ **/
+void
+asn1_octet_der (const unsigned char *str, int str_len,
+ unsigned char *der, int *der_len)
+{
+ int len_len;
+
+ if (der == NULL || str_len < 0)
+ return;
+
+ asn1_length_der (str_len, der, &len_len);
+ memcpy (der + len_len, str, str_len);
+ *der_len = str_len + len_len;
+}
+
+
+/**
+ * asn1_encode_simple_der:
+ * @etype: The type of the string to be encoded (ASN1_ETYPE_)
+ * @str: the string data.
+ * @str_len: the string length
+ * @tl: the encoded tag and length
+ * @tl_len: the bytes of the @tl field
+ *
+ * Creates the DER encoding for various simple ASN.1 types like strings etc.
+ * It stores the tag and length in @tl, which should have space for at least
+ * %ASN1_MAX_TL_SIZE bytes. Initially @tl_len should contain the size of @tl.
+ *
+ * The complete DER encoding should consist of the value in @tl appended
+ * with the provided @str.
+ *
+ * Returns: %ASN1_SUCCESS if successful or an error value.
+ **/
+int
+asn1_encode_simple_der (unsigned int etype, const unsigned char *str,
+ unsigned int str_len, unsigned char *tl,
+ unsigned int *tl_len)
+{
+ int tag_len, len_len;
+ unsigned tlen;
+ unsigned char der_tag[ASN1_MAX_TAG_SIZE];
+ unsigned char der_length[ASN1_MAX_LENGTH_SIZE];
+ unsigned char *p;
+
+ if (str == NULL)
+ return ASN1_VALUE_NOT_VALID;
+
+ if (ETYPE_OK (etype) == 0)
+ return ASN1_VALUE_NOT_VALID;
+
+ /* doesn't handle constructed classes */
+ if (ETYPE_CLASS (etype) != ASN1_CLASS_UNIVERSAL)
+ return ASN1_VALUE_NOT_VALID;
+
+ _asn1_tag_der (ETYPE_CLASS (etype), ETYPE_TAG (etype), der_tag, &tag_len);
+
+ asn1_length_der (str_len, der_length, &len_len);
+
+ if (tag_len <= 0 || len_len <= 0)
+ return ASN1_VALUE_NOT_VALID;
+
+ tlen = tag_len + len_len;
+
+ if (*tl_len < tlen)
+ return ASN1_MEM_ERROR;
+
+ p = tl;
+ memcpy (p, der_tag, tag_len);
+ p += tag_len;
+ memcpy (p, der_length, len_len);
+
+ *tl_len = tlen;
+
+ return ASN1_SUCCESS;
+}
+
+/******************************************************/
+/* Function : _asn1_time_der */
+/* Description: creates the DER coding for a TIME */
+/* type (length included). */
+/* Parameters: */
+/* str: TIME null-terminated string. */
+/* der: string returned. */
+/* der_len: number of meaningful bytes of DER */
+/* (der[0]..der[ans_len-1]). Initially it */
+/* if must store the lenght of DER. */
+/* Return: */
+/* ASN1_MEM_ERROR when DER isn't big enough */
+/* ASN1_SUCCESS otherwise */
+/******************************************************/
+static int
+_asn1_time_der (unsigned char *str, int str_len, unsigned char *der,
+ int *der_len)
+{
+ int len_len;
+ int max_len;
+
+ max_len = *der_len;
+
+ asn1_length_der (str_len, (max_len > 0) ? der : NULL, &len_len);
+
+ if ((len_len + str_len) <= max_len)
+ memcpy (der + len_len, str, str_len);
+ *der_len = len_len + str_len;
+
+ if ((*der_len) > max_len)
+ return ASN1_MEM_ERROR;
+
+ return ASN1_SUCCESS;
+}
+
+
+/*
+void
+_asn1_get_utctime_der(unsigned char *der,int *der_len,unsigned char *str)
+{
+ int len_len,str_len;
+ char temp[20];
+
+ if(str==NULL) return;
+ str_len=asn1_get_length_der(der,*der_len,&len_len);
+ if (str_len<0) return;
+ memcpy(temp,der+len_len,str_len);
+ *der_len=str_len+len_len;
+ switch(str_len)
+ {
+ case 11:
+ temp[10]=0;
+ strcat(temp,"00+0000");
+ break;
+ case 13:
+ temp[12]=0;
+ strcat(temp,"+0000");
+ break;
+ case 15:
+ temp[15]=0;
+ memmove(temp+12,temp+10,6);
+ temp[10]=temp[11]='0';
+ break;
+ case 17:
+ temp[17]=0;
+ break;
+ default:
+ return;
+ }
+ strcpy(str,temp);
+}
+*/
+
+static void
+encode_val (uint64_t val, unsigned char *der, int max_len, int *der_len)
+{
+ int first, k;
+ unsigned char bit7;
+
+ first = 0;
+ for (k = sizeof (val); k >= 0; k--)
+ {
+ bit7 = (val >> (k * 7)) & 0x7F;
+ if (bit7 || first || !k)
+ {
+ if (k)
+ bit7 |= 0x80;
+ if (max_len > (*der_len))
+ der[*der_len] = bit7;
+ (*der_len)++;
+ first = 1;
+ }
+ }
+}
+
+/******************************************************/
+/* Function : _asn1_object_id_der */
+/* Description: creates the DER coding for an */
+/* OBJECT IDENTIFIER type (length included). */
+/* Parameters: */
+/* str: OBJECT IDENTIFIER null-terminated string. */
+/* der: string returned. */
+/* der_len: number of meaningful bytes of DER */
+/* (der[0]..der[ans_len-1]). Initially it */
+/* must store the length of DER. */
+/* Return: */
+/* ASN1_MEM_ERROR when DER isn't big enough */
+/* ASN1_SUCCESS if succesful */
+/* or an error value. */
+/******************************************************/
+static int
+_asn1_object_id_der (const char *str, unsigned char *der, int *der_len)
+{
+ int len_len, counter, max_len;
+ char *temp, *n_end, *n_start;
+ uint64_t val, val1 = 0;
+ int str_len = _asn1_strlen (str);
+
+ max_len = *der_len;
+ *der_len = 0;
+
+ if (der == NULL && max_len > 0)
+ return ASN1_VALUE_NOT_VALID;
+
+ temp = malloc (str_len + 2);
+ if (temp == NULL)
+ return ASN1_MEM_ALLOC_ERROR;
+
+ memcpy (temp, str, str_len);
+ temp[str_len] = '.';
+ temp[str_len + 1] = 0;
+
+ counter = 0;
+ n_start = temp;
+ while ((n_end = strchr (n_start, '.')))
+ {
+ *n_end = 0;
+ val = _asn1_strtou64 (n_start, NULL, 10);
+ counter++;
+
+ if (counter == 1)
+ {
+ val1 = val;
+ }
+ else if (counter == 2)
+ {
+ uint64_t val0;
+
+ if (val1 > 2)
+ {
+ free (temp);
+ return ASN1_VALUE_NOT_VALID;
+ }
+ else if ((val1 == 0 || val1 == 1) && val > 39)
+ {
+ free (temp);
+ return ASN1_VALUE_NOT_VALID;
+ }
+
+ val0 = 40 * val1 + val;
+ encode_val (val0, der, max_len, der_len);
+ }
+ else
+ {
+ encode_val (val, der, max_len, der_len);
+ }
+ n_start = n_end + 1;
+ }
+
+ asn1_length_der (*der_len, NULL, &len_len);
+ if (max_len >= (*der_len + len_len))
+ {
+ memmove (der + len_len, der, *der_len);
+ asn1_length_der (*der_len, der, &len_len);
+ }
+ *der_len += len_len;
+
+ free (temp);
+
+ if (max_len < (*der_len))
+ return ASN1_MEM_ERROR;
+
+ return ASN1_SUCCESS;
+}
+
+/**
+ * asn1_object_id_der:
+ * @str: An object identifier in numeric, dot format.
+ * @der: buffer to hold the returned encoding (may be %NULL).
+ * @der_len: initially the size of @der; will hold the final size.
+ * @flags: must be zero
+ *
+ * Creates the DER encoding of the provided object identifier.
+ *
+ * Returns: %ASN1_SUCCESS if DER encoding was OK, %ASN1_VALUE_NOT_VALID
+ * if @str is not a valid OID, %ASN1_MEM_ERROR if the @der
+ * vector isn't big enough and in this case @der_len will contain the
+ * length needed.
+ **/
+int
+asn1_object_id_der (const char *str, unsigned char *der, int *der_len,
+ unsigned flags)
+{
+ unsigned char tag_der[MAX_TAG_LEN];
+ int tag_len = 0, r;
+ int max_len = *der_len;
+
+ *der_len = 0;
+
+ _asn1_tag_der (ETYPE_CLASS (ASN1_ETYPE_OBJECT_ID),
+ ETYPE_TAG (ASN1_ETYPE_OBJECT_ID), tag_der, &tag_len);
+
+ if (max_len > tag_len)
+ {
+ memcpy (der, tag_der, tag_len);
+ }
+ max_len -= tag_len;
+ der += tag_len;
+
+ r = _asn1_object_id_der (str, der, &max_len);
+ if (r == ASN1_MEM_ERROR || r == ASN1_SUCCESS)
+ {
+ *der_len = max_len + tag_len;
+ }
+
+ return r;
+}
+
+static const unsigned char bit_mask[] =
+ { 0xFF, 0xFE, 0xFC, 0xF8, 0xF0, 0xE0, 0xC0, 0x80 };
+
+/**
+ * asn1_bit_der:
+ * @str: BIT string.
+ * @bit_len: number of meaningful bits in STR.
+ * @der: string returned.
+ * @der_len: number of meaningful bytes of DER
+ * (der[0]..der[ans_len-1]).
+ *
+ * Creates a length-value DER encoding for the input data
+ * as it would have been for a BIT STRING.
+ * The DER encoded data will be copied in @der.
+ *
+ * Note that the BIT STRING tag is not included in the output.
+ *
+ * This function does not return any value because it is expected
+ * that @der_len will contain enough bytes to store the string
+ * plus the DER encoding. The DER encoding size can be obtained using
+ * asn1_length_der().
+ **/
+void
+asn1_bit_der (const unsigned char *str, int bit_len,
+ unsigned char *der, int *der_len)
+{
+ int len_len, len_byte, len_pad;
+
+ if (der == NULL)
+ return;
+
+ len_byte = bit_len >> 3;
+ len_pad = 8 - (bit_len & 7);
+ if (len_pad == 8)
+ len_pad = 0;
+ else
+ len_byte++;
+ asn1_length_der (len_byte + 1, der, &len_len);
+ der[len_len] = len_pad;
+
+ if (str)
+ memcpy (der + len_len + 1, str, len_byte);
+ der[len_len + len_byte] &= bit_mask[len_pad];
+ *der_len = len_byte + len_len + 1;
+}
+
+
+/******************************************************/
+/* Function : _asn1_complete_explicit_tag */
+/* Description: add the length coding to the EXPLICIT */
+/* tags. */
+/* Parameters: */
+/* node: pointer to the tree element. */
+/* der: string with the DER coding of the whole tree*/
+/* counter: number of meaningful bytes of DER */
+/* (der[0]..der[*counter-1]). */
+/* max_len: size of der vector */
+/* Return: */
+/* ASN1_MEM_ERROR if der vector isn't big enough, */
+/* otherwise ASN1_SUCCESS. */
+/******************************************************/
+static int
+_asn1_complete_explicit_tag (asn1_node node, unsigned char *der,
+ int *counter, int *max_len)
+{
+ asn1_node p;
+ int is_tag_implicit, len2, len3;
+ unsigned char temp[SIZEOF_UNSIGNED_INT];
+
+ if (der == NULL && *max_len > 0)
+ return ASN1_VALUE_NOT_VALID;
+
+ is_tag_implicit = 0;
+
+ if (node->type & CONST_TAG)
+ {
+ p = node->down;
+ if (p == NULL)
+ return ASN1_DER_ERROR;
+ /* When there are nested tags we must complete them reverse to
+ the order they were created. This is because completing a tag
+ modifies all data within it, including the incomplete tags
+ which store buffer positions -- simon@josefsson.org 2002-09-06
+ */
+ while (p->right)
+ p = p->right;
+ while (p && p != node->down->left)
+ {
+ if (type_field (p->type) == ASN1_ETYPE_TAG)
+ {
+ if (p->type & CONST_EXPLICIT)
+ {
+ len2 = strtol (p->name, NULL, 10);
+ _asn1_set_name (p, NULL);
+
+ asn1_length_der (*counter - len2, temp, &len3);
+ if (len3 <= (*max_len))
+ {
+ memmove (der + len2 + len3, der + len2,
+ *counter - len2);
+ memcpy (der + len2, temp, len3);
+ }
+ *max_len -= len3;
+ *counter += len3;
+ is_tag_implicit = 0;
+ }
+ else
+ { /* CONST_IMPLICIT */
+ if (!is_tag_implicit)
+ {
+ is_tag_implicit = 1;
+ }
+ }
+ }
+ p = p->left;
+ }
+ }
+
+ if (*max_len < 0)
+ return ASN1_MEM_ERROR;
+
+ return ASN1_SUCCESS;
+}
+
+const tag_and_class_st _asn1_tags[] = {
+ [ASN1_ETYPE_GENERALSTRING] =
+ {ASN1_TAG_GENERALSTRING, ASN1_CLASS_UNIVERSAL, "type:GENERALSTRING"},
+ [ASN1_ETYPE_NUMERIC_STRING] =
+ {ASN1_TAG_NUMERIC_STRING, ASN1_CLASS_UNIVERSAL, "type:NUMERIC_STR"},
+ [ASN1_ETYPE_IA5_STRING] =
+ {ASN1_TAG_IA5_STRING, ASN1_CLASS_UNIVERSAL, "type:IA5_STR"},
+ [ASN1_ETYPE_TELETEX_STRING] =
+ {ASN1_TAG_TELETEX_STRING, ASN1_CLASS_UNIVERSAL, "type:TELETEX_STR"},
+ [ASN1_ETYPE_PRINTABLE_STRING] =
+ {ASN1_TAG_PRINTABLE_STRING, ASN1_CLASS_UNIVERSAL, "type:PRINTABLE_STR"},
+ [ASN1_ETYPE_UNIVERSAL_STRING] =
+ {ASN1_TAG_UNIVERSAL_STRING, ASN1_CLASS_UNIVERSAL, "type:UNIVERSAL_STR"},
+ [ASN1_ETYPE_BMP_STRING] =
+ {ASN1_TAG_BMP_STRING, ASN1_CLASS_UNIVERSAL, "type:BMP_STR"},
+ [ASN1_ETYPE_UTF8_STRING] =
+ {ASN1_TAG_UTF8_STRING, ASN1_CLASS_UNIVERSAL, "type:UTF8_STR"},
+ [ASN1_ETYPE_VISIBLE_STRING] =
+ {ASN1_TAG_VISIBLE_STRING, ASN1_CLASS_UNIVERSAL, "type:VISIBLE_STR"},
+ [ASN1_ETYPE_OCTET_STRING] =
+ {ASN1_TAG_OCTET_STRING, ASN1_CLASS_UNIVERSAL, "type:OCT_STR"},
+ [ASN1_ETYPE_BIT_STRING] =
+ {ASN1_TAG_BIT_STRING, ASN1_CLASS_UNIVERSAL, "type:BIT_STR"},
+ [ASN1_ETYPE_OBJECT_ID] =
+ {ASN1_TAG_OBJECT_ID, ASN1_CLASS_UNIVERSAL, "type:OBJ_ID"},
+ [ASN1_ETYPE_NULL] = {ASN1_TAG_NULL, ASN1_CLASS_UNIVERSAL, "type:NULL"},
+ [ASN1_ETYPE_BOOLEAN] =
+ {ASN1_TAG_BOOLEAN, ASN1_CLASS_UNIVERSAL, "type:BOOLEAN"},
+ [ASN1_ETYPE_INTEGER] =
+ {ASN1_TAG_INTEGER, ASN1_CLASS_UNIVERSAL, "type:INTEGER"},
+ [ASN1_ETYPE_ENUMERATED] =
+ {ASN1_TAG_ENUMERATED, ASN1_CLASS_UNIVERSAL, "type:ENUMERATED"},
+ [ASN1_ETYPE_SEQUENCE] =
+ {ASN1_TAG_SEQUENCE, ASN1_CLASS_UNIVERSAL | ASN1_CLASS_STRUCTURED,
+ "type:SEQUENCE"},
+ [ASN1_ETYPE_SEQUENCE_OF] =
+ {ASN1_TAG_SEQUENCE, ASN1_CLASS_UNIVERSAL | ASN1_CLASS_STRUCTURED,
+ "type:SEQ_OF"},
+ [ASN1_ETYPE_SET] =
+ {ASN1_TAG_SET, ASN1_CLASS_UNIVERSAL | ASN1_CLASS_STRUCTURED, "type:SET"},
+ [ASN1_ETYPE_SET_OF] =
+ {ASN1_TAG_SET, ASN1_CLASS_UNIVERSAL | ASN1_CLASS_STRUCTURED,
+ "type:SET_OF"},
+ [ASN1_ETYPE_GENERALIZED_TIME] =
+ {ASN1_TAG_GENERALIZEDTime, ASN1_CLASS_UNIVERSAL, "type:GENERALIZED_TIME"},
+ [ASN1_ETYPE_UTC_TIME] =
+ {ASN1_TAG_UTCTime, ASN1_CLASS_UNIVERSAL, "type:UTC_TIME"},
+};
+
+unsigned int _asn1_tags_size = sizeof (_asn1_tags) / sizeof (_asn1_tags[0]);
+
+/******************************************************/
+/* Function : _asn1_insert_tag_der */
+/* Description: creates the DER coding of tags of one */
+/* NODE. */
+/* Parameters: */
+/* node: pointer to the tree element. */
+/* der: string returned */
+/* counter: number of meaningful bytes of DER */
+/* (counter[0]..der[*counter-1]). */
+/* max_len: size of der vector */
+/* Return: */
+/* ASN1_GENERIC_ERROR if the type is unknown, */
+/* ASN1_MEM_ERROR if der vector isn't big enough, */
+/* otherwise ASN1_SUCCESS. */
+/******************************************************/
+static int
+_asn1_insert_tag_der (asn1_node node, unsigned char *der, int *counter,
+ int *max_len)
+{
+ asn1_node p;
+ int tag_len, is_tag_implicit;
+ unsigned char class, class_implicit =
+ 0, temp[MAX (SIZEOF_UNSIGNED_INT * 3 + 1, LTOSTR_MAX_SIZE)];
+ unsigned long tag_implicit = 0;
+ unsigned char tag_der[MAX_TAG_LEN];
+
+ is_tag_implicit = 0;
+
+ if (node->type & CONST_TAG)
+ {
+ p = node->down;
+ while (p)
+ {
+ if (type_field (p->type) == ASN1_ETYPE_TAG)
+ {
+ if (p->type & CONST_APPLICATION)
+ class = ASN1_CLASS_APPLICATION;
+ else if (p->type & CONST_UNIVERSAL)
+ class = ASN1_CLASS_UNIVERSAL;
+ else if (p->type & CONST_PRIVATE)
+ class = ASN1_CLASS_PRIVATE;
+ else
+ class = ASN1_CLASS_CONTEXT_SPECIFIC;
+
+ if (p->type & CONST_EXPLICIT)
+ {
+ if (is_tag_implicit)
+ _asn1_tag_der (class_implicit, tag_implicit, tag_der,
+ &tag_len);
+ else
+ _asn1_tag_der (class | ASN1_CLASS_STRUCTURED,
+ _asn1_strtoul (p->value, NULL, 10),
+ tag_der, &tag_len);
+
+ *max_len -= tag_len;
+ if (der && *max_len >= 0)
+ memcpy (der + *counter, tag_der, tag_len);
+ *counter += tag_len;
+
+ _asn1_ltostr (*counter, (char *) temp);
+ _asn1_set_name (p, (const char *) temp);
+
+ is_tag_implicit = 0;
+ }
+ else
+ { /* CONST_IMPLICIT */
+ if (!is_tag_implicit)
+ {
+ if ((type_field (node->type) == ASN1_ETYPE_SEQUENCE) ||
+ (type_field (node->type) == ASN1_ETYPE_SEQUENCE_OF)
+ || (type_field (node->type) == ASN1_ETYPE_SET)
+ || (type_field (node->type) == ASN1_ETYPE_SET_OF))
+ class |= ASN1_CLASS_STRUCTURED;
+ class_implicit = class;
+ tag_implicit = _asn1_strtoul (p->value, NULL, 10);
+ is_tag_implicit = 1;
+ }
+ }
+ }
+ p = p->right;
+ }
+ }
+
+ if (is_tag_implicit)
+ {
+ _asn1_tag_der (class_implicit, tag_implicit, tag_der, &tag_len);
+ }
+ else
+ {
+ unsigned type = type_field (node->type);
+ switch (type)
+ {
+ CASE_HANDLED_ETYPES:
+ _asn1_tag_der (_asn1_tags[type].class, _asn1_tags[type].tag,
+ tag_der, &tag_len);
+ break;
+ case ASN1_ETYPE_TAG:
+ case ASN1_ETYPE_CHOICE:
+ case ASN1_ETYPE_ANY:
+ tag_len = 0;
+ break;
+ default:
+ return ASN1_GENERIC_ERROR;
+ }
+ }
+
+ *max_len -= tag_len;
+ if (der && *max_len >= 0)
+ memcpy (der + *counter, tag_der, tag_len);
+ *counter += tag_len;
+
+ if (*max_len < 0)
+ return ASN1_MEM_ERROR;
+
+ return ASN1_SUCCESS;
+}
+
+/******************************************************/
+/* Function : _asn1_ordering_set */
+/* Description: puts the elements of a SET type in */
+/* the correct order according to DER rules. */
+/* Parameters: */
+/* der: string with the DER coding. */
+/* node: pointer to the SET element. */
+/* Return: */
+/* ASN1_SUCCESS if successful */
+/* or an error value. */
+/******************************************************/
+static int
+_asn1_ordering_set (unsigned char *der, int der_len, asn1_node node)
+{
+ struct vet
+ {
+ int end;
+ unsigned long value;
+ struct vet *next, *prev;
+ };
+
+ int counter, len, len2;
+ struct vet *first, *last, *p_vet, *p2_vet;
+ asn1_node p;
+ unsigned char class, *temp;
+ unsigned long tag, t;
+ int err;
+
+ counter = 0;
+
+ if (type_field (node->type) != ASN1_ETYPE_SET)
+ return ASN1_VALUE_NOT_VALID;
+
+ p = node->down;
+ while (p && ((type_field (p->type) == ASN1_ETYPE_TAG) ||
+ (type_field (p->type) == ASN1_ETYPE_SIZE)))
+ p = p->right;
+
+ if ((p == NULL) || (p->right == NULL))
+ return ASN1_SUCCESS;
+
+ first = last = NULL;
+ while (p)
+ {
+ p_vet = malloc (sizeof (struct vet));
+ if (p_vet == NULL)
+ {
+ err = ASN1_MEM_ALLOC_ERROR;
+ goto error;
+ }
+
+ p_vet->next = NULL;
+ p_vet->prev = last;
+ if (first == NULL)
+ first = p_vet;
+ else
+ last->next = p_vet;
+ last = p_vet;
+
+ /* tag value calculation */
+ err = asn1_get_tag_der (der + counter, der_len - counter, &class, &len2,
+ &tag);
+ if (err != ASN1_SUCCESS)
+ goto error;
+
+ t = ((unsigned int) class) << 24;
+ p_vet->value = t | tag;
+ counter += len2;
+
+ /* extraction and length */
+ len2 = asn1_get_length_der (der + counter, der_len - counter, &len);
+ if (len2 < 0)
+ {
+ err = ASN1_DER_ERROR;
+ goto error;
+ }
+ counter += len + len2;
+
+ p_vet->end = counter;
+ p = p->right;
+ }
+
+ p_vet = first;
+
+ while (p_vet)
+ {
+ p2_vet = p_vet->next;
+ counter = 0;
+ while (p2_vet)
+ {
+ if (p_vet->value > p2_vet->value)
+ {
+ /* change position */
+ temp = malloc (p_vet->end - counter);
+ if (temp == NULL)
+ {
+ err = ASN1_MEM_ALLOC_ERROR;
+ goto error;
+ }
+
+ memcpy (temp, der + counter, p_vet->end - counter);
+ memcpy (der + counter, der + p_vet->end,
+ p2_vet->end - p_vet->end);
+ memcpy (der + counter + p2_vet->end - p_vet->end, temp,
+ p_vet->end - counter);
+ free (temp);
+
+ tag = p_vet->value;
+ p_vet->value = p2_vet->value;
+ p2_vet->value = tag;
+
+ p_vet->end = counter + (p2_vet->end - p_vet->end);
+ }
+ counter = p_vet->end;
+
+ p2_vet = p2_vet->next;
+ p_vet = p_vet->next;
+ }
+
+ if (p_vet != first)
+ p_vet->prev->next = NULL;
+ else
+ first = NULL;
+ free (p_vet);
+ p_vet = first;
+ }
+ return ASN1_SUCCESS;
+
+error:
+ while (first != NULL)
+ {
+ p_vet = first;
+ first = first->next;
+ free (p_vet);
+ }
+ return err;
+}
+
+struct vet
+{
+ unsigned char *ptr;
+ int size;
+};
+
+static int
+setof_compar (const void *_e1, const void *_e2)
+{
+ unsigned length;
+ const struct vet *e1 = _e1, *e2 = _e2;
+ int rval;
+
+ /* The encodings of the component values of a set-of value shall
+ * appear in ascending order, the encodings being compared
+ * as octet strings with the shorter components being
+ * padded at their trailing end with 0-octets.
+ * The padding octets are for comparison purposes and
+ * do not appear in the encodings.
+ */
+ length = MIN (e1->size, e2->size);
+
+ rval = memcmp (e1->ptr, e2->ptr, length);
+ if (rval == 0 && e1->size != e2->size)
+ {
+ if (e1->size > e2->size)
+ rval = 1;
+ else if (e2->size > e1->size)
+ rval = -1;
+ }
+
+ return rval;
+}
+
+/******************************************************/
+/* Function : _asn1_ordering_set_of */
+/* Description: puts the elements of a SET OF type in */
+/* the correct order according to DER rules. */
+/* Parameters: */
+/* der: string with the DER coding. */
+/* node: pointer to the SET OF element. */
+/* Return: */
+/* ASN1_SUCCESS if successful */
+/* or an error value. */
+/******************************************************/
+static int
+_asn1_ordering_set_of (unsigned char *der, int der_len, asn1_node node)
+{
+ int counter, len, len2;
+ struct vet *list = NULL, *tlist;
+ unsigned list_size = 0;
+ struct vet *p_vet;
+ asn1_node p;
+ unsigned char class;
+ unsigned i;
+ unsigned char *out = NULL;
+ int err;
+
+ counter = 0;
+
+ if (type_field (node->type) != ASN1_ETYPE_SET_OF)
+ return ASN1_VALUE_NOT_VALID;
+
+ p = node->down;
+ while (p && ((type_field (p->type) == ASN1_ETYPE_TAG) ||
+ (type_field (p->type) == ASN1_ETYPE_SIZE)))
+ p = p->right;
+ if (p == NULL)
+ return ASN1_VALUE_NOT_VALID;
+ p = p->right;
+
+ if ((p == NULL) || (p->right == NULL))
+ return ASN1_SUCCESS;
+
+ while (p)
+ {
+ list_size++;
+ tlist = realloc (list, list_size * sizeof (struct vet));
+ if (tlist == NULL)
+ {
+ err = ASN1_MEM_ALLOC_ERROR;
+ goto error;
+ }
+ list = tlist;
+ p_vet = &list[list_size - 1];
+
+ p_vet->ptr = der + counter;
+ p_vet->size = 0;
+
+ /* extraction of tag and length */
+ if (der_len - counter > 0)
+ {
+ err = asn1_get_tag_der (der + counter, der_len - counter, &class,
+ &len, NULL);
+ if (err != ASN1_SUCCESS)
+ goto error;
+ counter += len;
+ p_vet->size += len;
+
+ len2 = asn1_get_length_der (der + counter, der_len - counter, &len);
+ if (len2 < 0)
+ {
+ err = ASN1_DER_ERROR;
+ goto error;
+ }
+ counter += len + len2;
+ p_vet->size += len + len2;
+
+ }
+ else
+ {
+ err = ASN1_DER_ERROR;
+ goto error;
+ }
+ p = p->right;
+ }
+
+ if (counter > der_len)
+ {
+ err = ASN1_DER_ERROR;
+ goto error;
+ }
+
+ qsort (list, list_size, sizeof (struct vet), setof_compar);
+
+ out = malloc (der_len);
+ if (out == NULL)
+ {
+ err = ASN1_MEM_ERROR;
+ goto error;
+ }
+
+ /* the sum of p_vet->size == der_len */
+ counter = 0;
+ for (i = 0; i < list_size; i++)
+ {
+ p_vet = &list[i];
+ memcpy (out + counter, p_vet->ptr, p_vet->size);
+ counter += p_vet->size;
+ }
+ memcpy (der, out, der_len);
+ free (out);
+
+ err = ASN1_SUCCESS;
+
+error:
+ free (list);
+ return err;
+}
+
+/**
+ * asn1_der_coding:
+ * @element: pointer to an ASN1 element
+ * @name: the name of the structure you want to encode (it must be
+ * inside *POINTER).
+ * @ider: vector that will contain the DER encoding. DER must be a
+ * pointer to memory cells already allocated.
+ * @len: number of bytes of *@ider: @ider[0]..@ider[len-1], Initialy
+ * holds the sizeof of der vector.
+ * @ErrorDescription: return the error description or an empty
+ * string if success.
+ *
+ * Creates the DER encoding for the NAME structure (inside *POINTER
+ * structure).
+ *
+ * Returns: %ASN1_SUCCESS if DER encoding OK, %ASN1_ELEMENT_NOT_FOUND
+ * if @name is not a valid element, %ASN1_VALUE_NOT_FOUND if there
+ * is an element without a value, %ASN1_MEM_ERROR if the @ider
+ * vector isn't big enough and in this case @len will contain the
+ * length needed.
+ **/
+int
+asn1_der_coding (asn1_node_const element, const char *name, void *ider,
+ int *len, char *ErrorDescription)
+{
+ asn1_node node, p, p2;
+ unsigned char temp[MAX (LTOSTR_MAX_SIZE, SIZEOF_UNSIGNED_LONG_INT * 3 + 1)];
+ int counter, counter_old, len2, len3, move, max_len, max_len_old;
+ int err;
+ unsigned char *der = ider;
+ unsigned char dummy;
+
+ if (ErrorDescription)
+ ErrorDescription[0] = 0;
+
+ node = asn1_find_node (element, name);
+ if (node == NULL)
+ return ASN1_ELEMENT_NOT_FOUND;
+
+ /* Node is now a locally allocated variable.
+ * That is because in some point we modify the
+ * structure, and I don't know why! --nmav
+ */
+ node = _asn1_copy_structure3 (node);
+ if (node == NULL)
+ return ASN1_ELEMENT_NOT_FOUND;
+
+ max_len = *len;
+
+ if (der == NULL && max_len > 0)
+ {
+ err = ASN1_VALUE_NOT_VALID;
+ goto error;
+ }
+
+ counter = 0;
+ move = DOWN;
+ p = node;
+
+ while (1)
+ {
+
+ counter_old = counter;
+ max_len_old = max_len;
+ if (move != UP)
+ {
+ p->start = counter;
+ err = _asn1_insert_tag_der (p, der, &counter, &max_len);
+ if (err != ASN1_SUCCESS && err != ASN1_MEM_ERROR)
+ goto error;
+ }
+ switch (type_field (p->type))
+ {
+ case ASN1_ETYPE_NULL:
+ max_len--;
+ if (der != NULL && max_len >= 0)
+ der[counter] = 0;
+ counter++;
+ move = RIGHT;
+ break;
+ case ASN1_ETYPE_BOOLEAN:
+ if ((p->type & CONST_DEFAULT) && (p->value == NULL))
+ {
+ counter = counter_old;
+ max_len = max_len_old;
+ }
+ else
+ {
+ if (p->value == NULL)
+ {
+ _asn1_error_description_value_not_found (p,
+ ErrorDescription);
+ err = ASN1_VALUE_NOT_FOUND;
+ goto error;
+ }
+ max_len -= 2;
+ if (der != NULL && max_len >= 0)
+ {
+ der[counter++] = 1;
+ if (p->value[0] == 'F')
+ der[counter++] = 0;
+ else
+ der[counter++] = 0xFF;
+ }
+ else
+ counter += 2;
+ }
+ move = RIGHT;
+ break;
+ case ASN1_ETYPE_INTEGER:
+ case ASN1_ETYPE_ENUMERATED:
+ if ((p->type & CONST_DEFAULT) && (p->value == NULL))
+ {
+ counter = counter_old;
+ max_len = max_len_old;
+ }
+ else
+ {
+ if (p->value == NULL)
+ {
+ _asn1_error_description_value_not_found (p,
+ ErrorDescription);
+ err = ASN1_VALUE_NOT_FOUND;
+ goto error;
+ }
+ len2 = asn1_get_length_der (p->value, p->value_len, &len3);
+ if (len2 < 0)
+ {
+ err = ASN1_DER_ERROR;
+ goto error;
+ }
+ max_len -= len2 + len3;
+ if (der != NULL && max_len >= 0)
+ memcpy (der + counter, p->value, len3 + len2);
+ counter += len3 + len2;
+ }
+ move = RIGHT;
+ break;
+ case ASN1_ETYPE_OBJECT_ID:
+ if ((p->type & CONST_DEFAULT) && (p->value == NULL))
+ {
+ counter = counter_old;
+ max_len = max_len_old;
+ }
+ else
+ {
+ if (p->value == NULL)
+ {
+ _asn1_error_description_value_not_found (p,
+ ErrorDescription);
+ err = ASN1_VALUE_NOT_FOUND;
+ goto error;
+ }
+ len2 = max_len;
+ err =
+ _asn1_object_id_der ((char *) p->value,
+ der ? der + counter : &dummy, &len2);
+ if (err != ASN1_SUCCESS && err != ASN1_MEM_ERROR)
+ goto error;
+
+ max_len -= len2;
+ counter += len2;
+ }
+ move = RIGHT;
+ break;
+ case ASN1_ETYPE_GENERALIZED_TIME:
+ case ASN1_ETYPE_UTC_TIME:
+ if (p->value == NULL)
+ {
+ _asn1_error_description_value_not_found (p, ErrorDescription);
+ err = ASN1_VALUE_NOT_FOUND;
+ goto error;
+ }
+ len2 = max_len;
+ err =
+ _asn1_time_der (p->value, p->value_len,
+ der ? der + counter : &dummy, &len2);
+ if (err != ASN1_SUCCESS && err != ASN1_MEM_ERROR)
+ goto error;
+
+ max_len -= len2;
+ counter += len2;
+ move = RIGHT;
+ break;
+ case ASN1_ETYPE_OCTET_STRING:
+ case ASN1_ETYPE_GENERALSTRING:
+ case ASN1_ETYPE_NUMERIC_STRING:
+ case ASN1_ETYPE_IA5_STRING:
+ case ASN1_ETYPE_TELETEX_STRING:
+ case ASN1_ETYPE_PRINTABLE_STRING:
+ case ASN1_ETYPE_UNIVERSAL_STRING:
+ case ASN1_ETYPE_BMP_STRING:
+ case ASN1_ETYPE_UTF8_STRING:
+ case ASN1_ETYPE_VISIBLE_STRING:
+ case ASN1_ETYPE_BIT_STRING:
+ if (p->value == NULL)
+ {
+ _asn1_error_description_value_not_found (p, ErrorDescription);
+ err = ASN1_VALUE_NOT_FOUND;
+ goto error;
+ }
+ len2 = asn1_get_length_der (p->value, p->value_len, &len3);
+ if (len2 < 0)
+ {
+ err = ASN1_DER_ERROR;
+ goto error;
+ }
+ max_len -= len2 + len3;
+ if (der != NULL && max_len >= 0)
+ memcpy (der + counter, p->value, len3 + len2);
+ counter += len3 + len2;
+ move = RIGHT;
+ break;
+ case ASN1_ETYPE_SEQUENCE:
+ case ASN1_ETYPE_SET:
+ if (move != UP)
+ {
+ p->tmp_ival = counter;
+ if (p->down == NULL)
+ {
+ move = UP;
+ continue;
+ }
+ else
+ {
+ p2 = p->down;
+ while (p2 && (type_field (p2->type) == ASN1_ETYPE_TAG))
+ p2 = p2->right;
+ if (p2)
+ {
+ p = p2;
+ move = RIGHT;
+ continue;
+ }
+ move = UP;
+ continue;
+ }
+ }
+ else
+ { /* move==UP */
+ len2 = p->tmp_ival;
+ p->tmp_ival = 0;
+ if ((type_field (p->type) == ASN1_ETYPE_SET) && (max_len >= 0))
+ {
+ err =
+ _asn1_ordering_set (der ? der + len2 : &dummy,
+ counter - len2, p);
+ if (err != ASN1_SUCCESS)
+ goto error;
+ }
+ asn1_length_der (counter - len2, temp, &len3);
+ max_len -= len3;
+ if (der != NULL && max_len >= 0)
+ {
+ memmove (der + len2 + len3, der + len2, counter - len2);
+ memcpy (der + len2, temp, len3);
+ }
+ counter += len3;
+ move = RIGHT;
+ }
+ break;
+ case ASN1_ETYPE_SEQUENCE_OF:
+ case ASN1_ETYPE_SET_OF:
+ if (move != UP)
+ {
+ p->tmp_ival = counter;
+ p = p->down;
+ while ((type_field (p->type) == ASN1_ETYPE_TAG)
+ || (type_field (p->type) == ASN1_ETYPE_SIZE))
+ p = p->right;
+ if (p->right)
+ {
+ p = p->right;
+ move = RIGHT;
+ continue;
+ }
+ else
+ p = _asn1_find_up (p);
+ move = UP;
+ }
+ if (move == UP)
+ {
+ len2 = p->tmp_ival;
+ p->tmp_ival = 0;
+ if ((type_field (p->type) == ASN1_ETYPE_SET_OF)
+ && (counter - len2 > 0) && (max_len >= 0))
+ {
+ err =
+ _asn1_ordering_set_of (der ? der + len2 : &dummy,
+ counter - len2, p);
+ if (err != ASN1_SUCCESS)
+ goto error;
+ }
+ asn1_length_der (counter - len2, temp, &len3);
+ max_len -= len3;
+ if (der != NULL && max_len >= 0)
+ {
+ memmove (der + len2 + len3, der + len2, counter - len2);
+ memcpy (der + len2, temp, len3);
+ }
+ counter += len3;
+ move = RIGHT;
+ }
+ break;
+ case ASN1_ETYPE_ANY:
+ if (p->value == NULL)
+ {
+ _asn1_error_description_value_not_found (p, ErrorDescription);
+ err = ASN1_VALUE_NOT_FOUND;
+ goto error;
+ }
+ len2 = asn1_get_length_der (p->value, p->value_len, &len3);
+ if (len2 < 0)
+ {
+ err = ASN1_DER_ERROR;
+ goto error;
+ }
+ max_len -= len2;
+ if (der != NULL && max_len >= 0)
+ memcpy (der + counter, p->value + len3, len2);
+ counter += len2;
+ move = RIGHT;
+ break;
+ default:
+ move = (move == UP) ? RIGHT : DOWN;
+ break;
+ }
+
+ if ((move != DOWN) && (counter != counter_old))
+ {
+ p->end = counter - 1;
+ err = _asn1_complete_explicit_tag (p, der, &counter, &max_len);
+ if (err != ASN1_SUCCESS && err != ASN1_MEM_ERROR)
+ goto error;
+ }
+
+ if (p == node && move != DOWN)
+ break;
+
+ if (move == DOWN)
+ {
+ if (p->down)
+ p = p->down;
+ else
+ move = RIGHT;
+ }
+ if (move == RIGHT)
+ {
+ if (p->right)
+ p = p->right;
+ else
+ move = UP;
+ }
+ if (move == UP)
+ p = _asn1_find_up (p);
+ }
+
+ *len = counter;
+
+ if (max_len < 0)
+ {
+ err = ASN1_MEM_ERROR;
+ goto error;
+ }
+
+ err = ASN1_SUCCESS;
+
+error:
+ asn1_delete_structure (&node);
+ return err;
+}
diff --git a/grub-core/lib/libtasn1/lib/decoding.c
b/grub-core/lib/libtasn1/lib/decoding.c
new file mode 100644
index 000000000..b9245c486
--- /dev/null
+++ b/grub-core/lib/libtasn1/lib/decoding.c
@@ -0,0 +1,2501 @@
+/*
+ * Copyright (C) 2002-2022 Free Software Foundation, Inc.
+ *
+ * This file is part of LIBTASN1.
+ *
+ * The LIBTASN1 library is free software; you can redistribute it
+ * and/or modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
+ * 02110-1301, USA
+ */
+
+
+/*****************************************************/
+/* File: decoding.c */
+/* Description: Functions to manage DER decoding */
+/*****************************************************/
+
+#include <int.h>
+#include <parser_aux.h>
+#include <gstr.h>
+#include <structure.h>
+#include <element.h>
+#include <limits.h>
+#include <intprops.h>
+#include "c-ctype.h"
+
+#ifdef DEBUG
+# define warn() fprintf(stderr, "%s: %d\n", __func__, __LINE__)
+#else
+# define warn()
+#endif
+
+#define IS_ERR(len, flags) (len < -1 || ((flags & ASN1_DECODE_FLAG_STRICT_DER)
&& len < 0))
+
+#define HAVE_TWO(x) (x>=2?1:0)
+
+/* Decoding flags (dflags) used in several decoding functions.
+ * DECODE_FLAG_HAVE_TAG: The provided buffer includes a tag
+ * DECODE_FLAG_CONSTRUCTED: The provided buffer is of indefinite encoding
(useful
+ * when no tags are present).
+ * DECODE_FLAG_LEVEL1: Internal flag to indicate a level of recursion for BER
strings.
+ * DECODE_FLAG_LEVEL2: Internal flag to indicate two levels of recursion for
BER strings.
+ * DECODE_FLAG_LEVEL3: Internal flag to indicate three levels of recursion
for BER strings.
+ * This is the maximum levels of recursion possible to
prevent stack
+ * exhaustion.
+ */
+
+#define DECODE_FLAG_HAVE_TAG 1
+#define DECODE_FLAG_CONSTRUCTED (1<<1)
+#define DECODE_FLAG_LEVEL1 (1<<2)
+#define DECODE_FLAG_LEVEL2 (1<<3)
+#define DECODE_FLAG_LEVEL3 (1<<4)
+
+#define DECR_LEN(l, s) do { \
+ l -= s; \
+ if (l < 0) { \
+ warn(); \
+ result = ASN1_DER_ERROR; \
+ goto cleanup; \
+ } \
+ } while (0)
+
+static int
+_asn1_get_indefinite_length_string (const unsigned char *der, int der_len,
+ int *len);
+
+static int
+_asn1_decode_simple_ber (unsigned int etype, const unsigned char *der,
+ unsigned int _der_len, unsigned char **str,
+ unsigned int *str_len, unsigned int *ber_len,
+ unsigned dflags);
+
+static int
+_asn1_decode_simple_der (unsigned int etype, const unsigned char *der,
+ unsigned int _der_len, const unsigned char **str,
+ unsigned int *str_len, unsigned dflags);
+
+static void
+_asn1_error_description_tag_error (asn1_node node, char *ErrorDescription)
+{
+
+ Estrcpy (ErrorDescription, ":: tag error near element '");
+ _asn1_hierarchical_name (node, ErrorDescription + strlen (ErrorDescription),
+ ASN1_MAX_ERROR_DESCRIPTION_SIZE - 40);
+ Estrcat (ErrorDescription, "'");
+
+}
+
+/**
+ * asn1_get_length_der:
+ * @der: DER data to decode.
+ * @der_len: Length of DER data to decode.
+ * @len: Output variable containing the length of the DER length field.
+ *
+ * Extract a length field from DER data.
+ *
+ * Returns: Return the decoded length value, or -1 on indefinite
+ * length, or -2 when the value was too big to fit in a int, or -4
+ * when the decoded length value plus @len would exceed @der_len.
+ **/
+long
+asn1_get_length_der (const unsigned char *der, int der_len, int *len)
+{
+ unsigned int ans;
+ int k, punt, sum;
+
+ *len = 0;
+ if (der_len <= 0)
+ return 0;
+
+ if (!(der[0] & 128))
+ {
+ /* short form */
+ *len = 1;
+ ans = der[0];
+ }
+ else
+ {
+ /* Long form */
+ k = der[0] & 0x7F;
+ punt = 1;
+ if (k)
+ { /* definite length method */
+ ans = 0;
+ while (punt <= k && punt < der_len)
+ {
+ if (INT_MULTIPLY_OVERFLOW (ans, 256))
+ return -2;
+ ans *= 256;
+
+ if (INT_ADD_OVERFLOW (ans, ((unsigned) der[punt])))
+ return -2;
+ ans += der[punt];
+ punt++;
+ }
+ }
+ else
+ { /* indefinite length method */
+ *len = punt;
+ return -1;
+ }
+
+ *len = punt;
+ }
+
+ sum = ans;
+ if (ans >= INT_MAX || INT_ADD_OVERFLOW (sum, (*len)))
+ return -2;
+ sum += *len;
+
+ if (sum > der_len)
+ return -4;
+
+ return ans;
+}
+
+/**
+ * asn1_get_tag_der:
+ * @der: DER data to decode.
+ * @der_len: Length of DER data to decode.
+ * @cls: Output variable containing decoded class.
+ * @len: Output variable containing the length of the DER TAG data.
+ * @tag: Output variable containing the decoded tag (may be %NULL).
+ *
+ * Decode the class and TAG from DER code.
+ *
+ * Returns: Returns %ASN1_SUCCESS on success, or an error.
+ **/
+int
+asn1_get_tag_der (const unsigned char *der, int der_len,
+ unsigned char *cls, int *len, unsigned long *tag)
+{
+ unsigned int ris;
+ int punt;
+
+ if (der == NULL || der_len < 2 || len == NULL)
+ return ASN1_DER_ERROR;
+
+ *cls = der[0] & 0xE0;
+ if ((der[0] & 0x1F) != 0x1F)
+ {
+ /* short form */
+ *len = 1;
+ ris = der[0] & 0x1F;
+ }
+ else
+ {
+ /* Long form */
+ punt = 1;
+ ris = 0;
+ while (punt < der_len && der[punt] & 128)
+ {
+
+ if (INT_MULTIPLY_OVERFLOW (ris, 128))
+ return ASN1_DER_ERROR;
+ ris *= 128;
+
+ if (INT_ADD_OVERFLOW (ris, ((unsigned) (der[punt] & 0x7F))))
+ return ASN1_DER_ERROR;
+ ris += (der[punt] & 0x7F);
+ punt++;
+ }
+
+ if (punt >= der_len)
+ return ASN1_DER_ERROR;
+
+ if (INT_MULTIPLY_OVERFLOW (ris, 128))
+ return ASN1_DER_ERROR;
+ ris *= 128;
+
+ if (INT_ADD_OVERFLOW (ris, ((unsigned) (der[punt] & 0x7F))))
+ return ASN1_DER_ERROR;
+ ris += (der[punt] & 0x7F);
+ punt++;
+
+ *len = punt;
+ }
+
+ if (tag)
+ *tag = ris;
+ return ASN1_SUCCESS;
+}
+
+/**
+ * asn1_get_length_ber:
+ * @ber: BER data to decode.
+ * @ber_len: Length of BER data to decode.
+ * @len: Output variable containing the length of the BER length field.
+ *
+ * Extract a length field from BER data. The difference to
+ * asn1_get_length_der() is that this function will return a length
+ * even if the value has indefinite encoding.
+ *
+ * Returns: Return the decoded length value, or negative value when
+ * the value was too big.
+ *
+ * Since: 2.0
+ **/
+long
+asn1_get_length_ber (const unsigned char *ber, int ber_len, int *len)
+{
+ int ret;
+ long err;
+
+ ret = asn1_get_length_der (ber, ber_len, len);
+
+ if (ret == -1 && ber_len > 1)
+ { /* indefinite length method */
+ err = _asn1_get_indefinite_length_string (ber + 1, ber_len - 1, &ret);
+ if (err != ASN1_SUCCESS)
+ return -3;
+ }
+
+ return ret;
+}
+
+/**
+ * asn1_get_octet_der:
+ * @der: DER data to decode containing the OCTET SEQUENCE.
+ * @der_len: The length of the @der data to decode.
+ * @ret_len: Output variable containing the encoded length of the DER data.
+ * @str: Pre-allocated output buffer to put decoded OCTET SEQUENCE in.
+ * @str_size: Length of pre-allocated output buffer.
+ * @str_len: Output variable containing the length of the contents of the
OCTET SEQUENCE.
+ *
+ * Extract an OCTET SEQUENCE from DER data. Note that this function
+ * expects the DER data past the tag field, i.e., the length and
+ * content octets.
+ *
+ * Returns: Returns %ASN1_SUCCESS on success, or an error.
+ **/
+int
+asn1_get_octet_der (const unsigned char *der, int der_len,
+ int *ret_len, unsigned char *str, int str_size,
+ int *str_len)
+{
+ int len_len = 0;
+
+ if (der_len <= 0)
+ return ASN1_GENERIC_ERROR;
+
+ *str_len = asn1_get_length_der (der, der_len, &len_len);
+
+ if (*str_len < 0)
+ return ASN1_DER_ERROR;
+
+ *ret_len = *str_len + len_len;
+ if (str_size >= *str_len)
+ {
+ if (*str_len > 0 && str != NULL)
+ memcpy (str, der + len_len, *str_len);
+ }
+ else
+ {
+ return ASN1_MEM_ERROR;
+ }
+
+ return ASN1_SUCCESS;
+}
+
+
+/*-
+ * _asn1_get_time_der:
+ * @type: %ASN1_ETYPE_GENERALIZED_TIME or %ASN1_ETYPE_UTC_TIME
+ * @der: DER data to decode containing the time
+ * @der_len: Length of DER data to decode.
+ * @ret_len: Output variable containing the length of the DER data.
+ * @str: Pre-allocated output buffer to put the textual time in.
+ * @str_size: Length of pre-allocated output buffer.
+ * @flags: Zero or %ASN1_DECODE_FLAG_STRICT_DER
+ *
+ * Performs basic checks in the DER encoded time object and returns its
textual form.
+ * The textual form will be in the YYYYMMDD000000Z format for GeneralizedTime
+ * and YYMMDD000000Z for UTCTime.
+ *
+ * Returns: %ASN1_SUCCESS on success, or an error.
+ -*/
+static int
+_asn1_get_time_der (unsigned type, const unsigned char *der, int der_len,
+ int *ret_len, char *str, int str_size, unsigned flags)
+{
+ int len_len, str_len;
+ unsigned i;
+ unsigned sign_count = 0;
+ unsigned dot_count = 0;
+ const unsigned char *p;
+
+ if (der_len <= 0 || str == NULL)
+ return ASN1_DER_ERROR;
+
+ str_len = asn1_get_length_der (der, der_len, &len_len);
+ if (str_len <= 0 || str_size < str_len)
+ return ASN1_DER_ERROR;
+
+ /* perform some sanity checks on the data */
+ if (str_len < 8)
+ {
+ warn ();
+ return ASN1_TIME_ENCODING_ERROR;
+ }
+
+ if ((flags & ASN1_DECODE_FLAG_STRICT_DER)
+ && !(flags & ASN1_DECODE_FLAG_ALLOW_INCORRECT_TIME))
+ {
+ p = &der[len_len];
+ for (i = 0; i < (unsigned) (str_len - 1); i++)
+ {
+ if (c_isdigit (p[i]) == 0)
+ {
+ if (type == ASN1_ETYPE_GENERALIZED_TIME)
+ {
+ /* tolerate lax encodings */
+ if (p[i] == '.' && dot_count == 0)
+ {
+ dot_count++;
+ continue;
+ }
+
+ /* This is not really valid DER, but there are
+ * structures using that */
+ if (!(flags & ASN1_DECODE_FLAG_STRICT_DER) &&
+ (p[i] == '+' || p[i] == '-') && sign_count == 0)
+ {
+ sign_count++;
+ continue;
+ }
+ }
+
+ warn ();
+ return ASN1_TIME_ENCODING_ERROR;
+ }
+ }
+
+ if (sign_count == 0 && p[str_len - 1] != 'Z')
+ {
+ warn ();
+ return ASN1_TIME_ENCODING_ERROR;
+ }
+ }
+ memcpy (str, der + len_len, str_len);
+ str[str_len] = 0;
+ *ret_len = str_len + len_len;
+
+ return ASN1_SUCCESS;
+}
+
+/**
+ * asn1_get_object_id_der:
+ * @der: DER data to decode containing the OBJECT IDENTIFIER
+ * @der_len: Length of DER data to decode.
+ * @ret_len: Output variable containing the length of the DER data.
+ * @str: Pre-allocated output buffer to put the textual object id in.
+ * @str_size: Length of pre-allocated output buffer.
+ *
+ * Converts a DER encoded object identifier to its textual form. This
+ * function expects the DER object identifier without the tag.
+ *
+ * Returns: %ASN1_SUCCESS on success, or an error.
+ **/
+int
+asn1_get_object_id_der (const unsigned char *der, int der_len, int *ret_len,
+ char *str, int str_size)
+{
+ int len_len, len, k;
+ int leading, parsed;
+ char temp[LTOSTR_MAX_SIZE];
+ uint64_t val, val1, val0;
+
+ *ret_len = 0;
+ if (str && str_size > 0)
+ str[0] = 0; /* no oid */
+
+ if (str == NULL || der_len <= 0)
+ return ASN1_GENERIC_ERROR;
+
+ len = asn1_get_length_der (der, der_len, &len_len);
+
+ if (len <= 0 || len + len_len > der_len)
+ return ASN1_DER_ERROR;
+
+ /* leading octet can never be 0x80 */
+ if (der[len_len] == 0x80)
+ return ASN1_DER_ERROR;
+
+ val0 = 0;
+
+ for (k = 0; k < len; k++)
+ {
+ if (INT_LEFT_SHIFT_OVERFLOW (val0, 7))
+ return ASN1_DER_ERROR;
+
+ val0 <<= 7;
+ val0 |= der[len_len + k] & 0x7F;
+ if (!(der[len_len + k] & 0x80))
+ break;
+ }
+ parsed = ++k;
+
+ /* val0 = (X*40) + Y, X={0,1,2}, Y<=39 when X={0,1} */
+ /* X = val, Y = val1 */
+
+ /* check if X == 0 */
+ val = 0;
+ val1 = val0;
+ if (val1 > 39)
+ {
+ val = 1;
+ val1 = val0 - 40;
+ if (val1 > 39)
+ {
+ val = 2;
+ val1 = val0 - 80;
+ }
+ }
+
+ _asn1_str_cpy (str, str_size, _asn1_ltostr (val, temp));
+ _asn1_str_cat (str, str_size, ".");
+ _asn1_str_cat (str, str_size, _asn1_ltostr (val1, temp));
+
+ val = 0;
+ leading = 1;
+ for (k = parsed; k < len; k++)
+ {
+ /* X.690 mandates that the leading byte must never be 0x80
+ */
+ if (leading != 0 && der[len_len + k] == 0x80)
+ return ASN1_DER_ERROR;
+ leading = 0;
+
+ /* check for wrap around */
+ if (INT_LEFT_SHIFT_OVERFLOW (val, 7))
+ return ASN1_DER_ERROR;
+
+ val = val << 7;
+ val |= der[len_len + k] & 0x7F;
+
+ if (!(der[len_len + k] & 0x80))
+ {
+ _asn1_str_cat (str, str_size, ".");
+ _asn1_str_cat (str, str_size, _asn1_ltostr (val, temp));
+ val = 0;
+ leading = 1;
+ }
+ }
+
+ if (INT_ADD_OVERFLOW (len, len_len))
+ return ASN1_DER_ERROR;
+
+ *ret_len = len + len_len;
+
+ return ASN1_SUCCESS;
+}
+
+/**
+ * asn1_get_bit_der:
+ * @der: DER data to decode containing the BIT SEQUENCE.
+ * @der_len: Length of DER data to decode.
+ * @ret_len: Output variable containing the length of the DER data.
+ * @str: Pre-allocated output buffer to put decoded BIT SEQUENCE in.
+ * @str_size: Length of pre-allocated output buffer.
+ * @bit_len: Output variable containing the size of the BIT SEQUENCE.
+ *
+ * Extract a BIT SEQUENCE from DER data.
+ *
+ * Returns: %ASN1_SUCCESS on success, or an error.
+ **/
+int
+asn1_get_bit_der (const unsigned char *der, int der_len,
+ int *ret_len, unsigned char *str, int str_size,
+ int *bit_len)
+{
+ int len_len = 0, len_byte;
+
+ if (der_len <= 0)
+ return ASN1_GENERIC_ERROR;
+
+ len_byte = asn1_get_length_der (der, der_len, &len_len) - 1;
+ if (len_byte < 0)
+ return ASN1_DER_ERROR;
+
+ *ret_len = len_byte + len_len + 1;
+ *bit_len = len_byte * 8 - der[len_len];
+
+ if (*bit_len < 0)
+ return ASN1_DER_ERROR;
+
+ if (str_size >= len_byte)
+ {
+ if (len_byte > 0 && str)
+ memcpy (str, der + len_len + 1, len_byte);
+ }
+ else
+ {
+ return ASN1_MEM_ERROR;
+ }
+
+ return ASN1_SUCCESS;
+}
+
+/* tag_len: the total tag length (explicit+inner)
+ * inner_tag_len: the inner_tag length
+ */
+static int
+_asn1_extract_tag_der (asn1_node node, const unsigned char *der, int der_len,
+ int *tag_len, int *inner_tag_len, unsigned flags)
+{
+ asn1_node p;
+ int counter, len2, len3, is_tag_implicit;
+ int result;
+ unsigned long tag, tag_implicit = 0;
+ unsigned char class, class2, class_implicit = 0;
+
+ if (der_len <= 0)
+ return ASN1_GENERIC_ERROR;
+
+ counter = is_tag_implicit = 0;
+
+ if (node->type & CONST_TAG)
+ {
+ p = node->down;
+ while (p)
+ {
+ if (type_field (p->type) == ASN1_ETYPE_TAG)
+ {
+ if (p->type & CONST_APPLICATION)
+ class2 = ASN1_CLASS_APPLICATION;
+ else if (p->type & CONST_UNIVERSAL)
+ class2 = ASN1_CLASS_UNIVERSAL;
+ else if (p->type & CONST_PRIVATE)
+ class2 = ASN1_CLASS_PRIVATE;
+ else
+ class2 = ASN1_CLASS_CONTEXT_SPECIFIC;
+
+ if (p->type & CONST_EXPLICIT)
+ {
+ if (asn1_get_tag_der
+ (der + counter, der_len, &class, &len2,
+ &tag) != ASN1_SUCCESS)
+ return ASN1_DER_ERROR;
+
+ DECR_LEN (der_len, len2);
+ counter += len2;
+
+ if (flags & ASN1_DECODE_FLAG_STRICT_DER)
+ len3 =
+ asn1_get_length_der (der + counter, der_len, &len2);
+ else
+ len3 =
+ asn1_get_length_ber (der + counter, der_len, &len2);
+ if (len3 < 0)
+ return ASN1_DER_ERROR;
+
+ DECR_LEN (der_len, len2);
+ counter += len2;
+
+ if (!is_tag_implicit)
+ {
+ if ((class != (class2 | ASN1_CLASS_STRUCTURED)) ||
+ (tag != strtoul ((char *) p->value, NULL, 10)))
+ return ASN1_TAG_ERROR;
+ }
+ else
+ { /* ASN1_TAG_IMPLICIT */
+ if ((class != class_implicit) || (tag != tag_implicit))
+ return ASN1_TAG_ERROR;
+ }
+ is_tag_implicit = 0;
+ }
+ else
+ { /* ASN1_TAG_IMPLICIT */
+ if (!is_tag_implicit)
+ {
+ if ((type_field (node->type) == ASN1_ETYPE_SEQUENCE) ||
+ (type_field (node->type) == ASN1_ETYPE_SEQUENCE_OF)
+ || (type_field (node->type) == ASN1_ETYPE_SET)
+ || (type_field (node->type) == ASN1_ETYPE_SET_OF))
+ class2 |= ASN1_CLASS_STRUCTURED;
+ class_implicit = class2;
+ tag_implicit = strtoul ((char *) p->value, NULL, 10);
+ is_tag_implicit = 1;
+ }
+ }
+ }
+ p = p->right;
+ }
+ }
+
+ if (is_tag_implicit)
+ {
+ if (asn1_get_tag_der
+ (der + counter, der_len, &class, &len2, &tag) != ASN1_SUCCESS)
+ return ASN1_DER_ERROR;
+
+ DECR_LEN (der_len, len2);
+
+ if ((class != class_implicit) || (tag != tag_implicit))
+ {
+ if (type_field (node->type) == ASN1_ETYPE_OCTET_STRING)
+ {
+ class_implicit |= ASN1_CLASS_STRUCTURED;
+ if ((class != class_implicit) || (tag != tag_implicit))
+ return ASN1_TAG_ERROR;
+ }
+ else
+ return ASN1_TAG_ERROR;
+ }
+ }
+ else
+ {
+ unsigned type = type_field (node->type);
+ if (type == ASN1_ETYPE_TAG)
+ {
+ *tag_len = 0;
+ if (inner_tag_len)
+ *inner_tag_len = 0;
+ return ASN1_SUCCESS;
+ }
+
+ if (asn1_get_tag_der
+ (der + counter, der_len, &class, &len2, &tag) != ASN1_SUCCESS)
+ return ASN1_DER_ERROR;
+
+ DECR_LEN (der_len, len2);
+
+ switch (type)
+ {
+ case ASN1_ETYPE_NULL:
+ case ASN1_ETYPE_BOOLEAN:
+ case ASN1_ETYPE_INTEGER:
+ case ASN1_ETYPE_ENUMERATED:
+ case ASN1_ETYPE_OBJECT_ID:
+ case ASN1_ETYPE_GENERALSTRING:
+ case ASN1_ETYPE_NUMERIC_STRING:
+ case ASN1_ETYPE_IA5_STRING:
+ case ASN1_ETYPE_TELETEX_STRING:
+ case ASN1_ETYPE_PRINTABLE_STRING:
+ case ASN1_ETYPE_UNIVERSAL_STRING:
+ case ASN1_ETYPE_BMP_STRING:
+ case ASN1_ETYPE_UTF8_STRING:
+ case ASN1_ETYPE_VISIBLE_STRING:
+ case ASN1_ETYPE_BIT_STRING:
+ case ASN1_ETYPE_SEQUENCE:
+ case ASN1_ETYPE_SEQUENCE_OF:
+ case ASN1_ETYPE_SET:
+ case ASN1_ETYPE_SET_OF:
+ case ASN1_ETYPE_GENERALIZED_TIME:
+ case ASN1_ETYPE_UTC_TIME:
+ if ((class != _asn1_tags[type].class)
+ || (tag != _asn1_tags[type].tag))
+ return ASN1_DER_ERROR;
+ break;
+
+ case ASN1_ETYPE_OCTET_STRING:
+ /* OCTET STRING is handled differently to allow
+ * BER encodings (structured class). */
+ if (((class != ASN1_CLASS_UNIVERSAL)
+ && (class != (ASN1_CLASS_UNIVERSAL | ASN1_CLASS_STRUCTURED)))
+ || (tag != ASN1_TAG_OCTET_STRING))
+ return ASN1_DER_ERROR;
+ break;
+ case ASN1_ETYPE_ANY:
+ counter -= len2;
+ break;
+ case ASN1_ETYPE_CHOICE:
+ counter -= len2;
+ break;
+ default:
+ return ASN1_DER_ERROR;
+ break;
+ }
+ }
+
+ counter += len2;
+ *tag_len = counter;
+ if (inner_tag_len)
+ *inner_tag_len = len2;
+ return ASN1_SUCCESS;
+
+cleanup:
+ return result;
+}
+
+static int
+extract_tag_der_recursive (asn1_node node, const unsigned char *der,
+ int der_len, int *ret_len, int *inner_len,
+ unsigned flags)
+{
+ asn1_node p;
+ int ris = ASN1_DER_ERROR;
+
+ if (type_field (node->type) == ASN1_ETYPE_CHOICE)
+ {
+ p = node->down;
+ while (p)
+ {
+ ris =
+ _asn1_extract_tag_der (p, der, der_len, ret_len, inner_len,
+ flags);
+ if (ris == ASN1_SUCCESS)
+ break;
+ p = p->right;
+ }
+
+ *ret_len = 0;
+ return ris;
+ }
+ else
+ return _asn1_extract_tag_der (node, der, der_len, ret_len, inner_len,
+ flags);
+}
+
+static int
+_asn1_delete_not_used (asn1_node node)
+{
+ asn1_node p, p2;
+
+ if (node == NULL)
+ return ASN1_ELEMENT_NOT_FOUND;
+
+ p = node;
+ while (p)
+ {
+ if (p->type & CONST_NOT_USED)
+ {
+ p2 = NULL;
+ if (p != node)
+ {
+ p2 = _asn1_find_left (p);
+ if (!p2)
+ p2 = _asn1_find_up (p);
+ }
+ asn1_delete_structure (&p);
+ p = p2;
+ }
+
+ if (!p)
+ break; /* reach node */
+
+ if (p->down)
+ {
+ p = p->down;
+ }
+ else
+ {
+ if (p == node)
+ p = NULL;
+ else if (p->right)
+ p = p->right;
+ else
+ {
+ while (1)
+ {
+ p = _asn1_find_up (p);
+ if (p == node)
+ {
+ p = NULL;
+ break;
+ }
+ if (p->right)
+ {
+ p = p->right;
+ break;
+ }
+ }
+ }
+ }
+ }
+ return ASN1_SUCCESS;
+}
+
+static int
+_asn1_get_indefinite_length_string (const unsigned char *der,
+ int der_len, int *len)
+{
+ int len2, len3, counter, indefinite;
+ int result;
+ unsigned long tag;
+ unsigned char class;
+
+ counter = indefinite = 0;
+
+ while (1)
+ {
+ if (HAVE_TWO (der_len) && (der[counter] == 0)
+ && (der[counter + 1] == 0))
+ {
+ counter += 2;
+ DECR_LEN (der_len, 2);
+
+ indefinite--;
+ if (indefinite <= 0)
+ break;
+ else
+ continue;
+ }
+
+ if (asn1_get_tag_der
+ (der + counter, der_len, &class, &len2, &tag) != ASN1_SUCCESS)
+ return ASN1_DER_ERROR;
+
+ DECR_LEN (der_len, len2);
+ counter += len2;
+
+ len2 = asn1_get_length_der (der + counter, der_len, &len3);
+ if (len2 < -1)
+ return ASN1_DER_ERROR;
+
+ if (len2 == -1)
+ {
+ indefinite++;
+ counter += 1;
+ DECR_LEN (der_len, 1);
+ }
+ else
+ {
+ counter += len2 + len3;
+ DECR_LEN (der_len, len2 + len3);
+ }
+ }
+
+ *len = counter;
+ return ASN1_SUCCESS;
+
+cleanup:
+ return result;
+}
+
+static void
+delete_unneeded_choice_fields (asn1_node p)
+{
+ asn1_node p2;
+
+ while (p->right)
+ {
+ p2 = p->right;
+ asn1_delete_structure (&p2);
+ }
+}
+
+
+/**
+ * asn1_der_decoding2
+ * @element: pointer to an ASN1 structure.
+ * @ider: vector that contains the DER encoding.
+ * @max_ider_len: pointer to an integer giving the information about the
+ * maximal number of bytes occupied by *@ider. The real size of the DER
+ * encoding is returned through this pointer.
+ * @flags: flags controlling the behaviour of the function.
+ * @errorDescription: null-terminated string contains details when an
+ * error occurred.
+ *
+ * Fill the structure *@element with values of a DER encoding string. The
+ * structure must just be created with function asn1_create_element().
+ *
+ * If %ASN1_DECODE_FLAG_ALLOW_PADDING flag is set then the function will ignore
+ * padding after the decoded DER data. Upon a successful return the value of
+ * *@max_ider_len will be set to the number of bytes decoded.
+ *
+ * If %ASN1_DECODE_FLAG_STRICT_DER flag is set then the function will
+ * not decode any BER-encoded elements.
+ *
+ * Returns: %ASN1_SUCCESS if DER encoding OK, %ASN1_ELEMENT_NOT_FOUND
+ * if @ELEMENT is %NULL, and %ASN1_TAG_ERROR or
+ * %ASN1_DER_ERROR if the der encoding doesn't match the structure
+ * name (*@ELEMENT deleted).
+ **/
+int
+asn1_der_decoding2 (asn1_node * element, const void *ider, int *max_ider_len,
+ unsigned int flags, char *errorDescription)
+{
+ asn1_node node, p, p2, p3;
+ char temp[128];
+ int counter, len2, len3, len4, move, ris, tlen;
+ struct node_tail_cache_st tcache = { NULL, NULL };
+ unsigned char class;
+ unsigned long tag;
+ int tag_len;
+ int indefinite, result, total_len = *max_ider_len, ider_len = *max_ider_len;
+ int inner_tag_len;
+ unsigned char *ptmp;
+ const unsigned char *ptag;
+ const unsigned char *der = ider;
+
+ node = *element;
+
+ if (errorDescription != NULL)
+ errorDescription[0] = 0;
+
+ if (node == NULL)
+ return ASN1_ELEMENT_NOT_FOUND;
+
+ if (node->type & CONST_OPTION)
+ {
+ result = ASN1_GENERIC_ERROR;
+ warn ();
+ goto cleanup;
+ }
+
+ counter = 0;
+ move = DOWN;
+ p = node;
+ while (1)
+ {
+ tag_len = 0;
+ inner_tag_len = 0;
+ ris = ASN1_SUCCESS;
+ if (move != UP)
+ {
+ if (p->type & CONST_SET)
+ {
+ p2 = _asn1_find_up (p);
+ len2 = p2->tmp_ival;
+ if (len2 == -1)
+ {
+ if (HAVE_TWO (ider_len) && !der[counter]
+ && !der[counter + 1])
+ {
+ p = p2;
+ move = UP;
+ counter += 2;
+ DECR_LEN (ider_len, 2);
+ continue;
+ }
+ }
+ else if (counter == len2)
+ {
+ p = p2;
+ move = UP;
+ continue;
+ }
+ else if (counter > len2)
+ {
+ result = ASN1_DER_ERROR;
+ warn ();
+ goto cleanup;
+ }
+ p2 = p2->down;
+ while (p2)
+ {
+ if ((p2->type & CONST_SET) && (p2->type & CONST_NOT_USED))
+ {
+ ris =
+ extract_tag_der_recursive (p2, der + counter,
+ ider_len, &len2, NULL,
+ flags);
+ if (ris == ASN1_SUCCESS)
+ {
+ p2->type &= ~CONST_NOT_USED;
+ p = p2;
+ break;
+ }
+ }
+ p2 = p2->right;
+ }
+ if (p2 == NULL)
+ {
+ result = ASN1_DER_ERROR;
+ warn ();
+ goto cleanup;
+ }
+ }
+
+ /* the position in the DER structure this starts */
+ p->start = counter;
+ p->end = total_len - 1;
+
+ if ((p->type & CONST_OPTION) || (p->type & CONST_DEFAULT))
+ {
+ p2 = _asn1_find_up (p);
+ len2 = p2->tmp_ival;
+ if (counter == len2)
+ {
+ if (p->right)
+ {
+ p2 = p->right;
+ move = RIGHT;
+ }
+ else
+ move = UP;
+
+ if (p->type & CONST_OPTION)
+ asn1_delete_structure (&p);
+
+ p = p2;
+ continue;
+ }
+ }
+
+ if (type_field (p->type) == ASN1_ETYPE_CHOICE)
+ {
+ while (p->down)
+ {
+ ris =
+ extract_tag_der_recursive (p->down, der + counter,
+ ider_len, &len2, NULL, flags);
+
+ if (ris == ASN1_SUCCESS)
+ {
+ delete_unneeded_choice_fields (p->down);
+ break;
+ }
+ else if (ris == ASN1_ERROR_TYPE_ANY)
+ {
+ result = ASN1_ERROR_TYPE_ANY;
+ warn ();
+ goto cleanup;
+ }
+ else
+ {
+ p2 = p->down;
+ asn1_delete_structure (&p2);
+ }
+ }
+
+ if (p->down == NULL)
+ {
+ if (!(p->type & CONST_OPTION))
+ {
+ result = ASN1_DER_ERROR;
+ warn ();
+ goto cleanup;
+ }
+ }
+ else if (type_field (p->type) != ASN1_ETYPE_CHOICE)
+ p = p->down;
+
+ p->start = counter;
+ }
+
+ if ((p->type & CONST_OPTION) || (p->type & CONST_DEFAULT))
+ {
+ p2 = _asn1_find_up (p);
+ len2 = p2->tmp_ival;
+
+ if ((len2 != -1) && (counter > len2))
+ ris = ASN1_TAG_ERROR;
+ }
+
+ if (ris == ASN1_SUCCESS)
+ ris =
+ extract_tag_der_recursive (p, der + counter, ider_len,
+ &tag_len, &inner_tag_len, flags);
+
+ if (ris != ASN1_SUCCESS)
+ {
+ if (p->type & CONST_OPTION)
+ {
+ p->type |= CONST_NOT_USED;
+ move = RIGHT;
+ }
+ else if (p->type & CONST_DEFAULT)
+ {
+ _asn1_set_value (p, NULL, 0);
+ move = RIGHT;
+ }
+ else
+ {
+ if (errorDescription != NULL)
+ _asn1_error_description_tag_error (p, errorDescription);
+
+ result = ASN1_TAG_ERROR;
+ warn ();
+ goto cleanup;
+ }
+ }
+ else
+ {
+ DECR_LEN (ider_len, tag_len);
+ counter += tag_len;
+ }
+ }
+
+ if (ris == ASN1_SUCCESS)
+ {
+ switch (type_field (p->type))
+ {
+ case ASN1_ETYPE_NULL:
+ DECR_LEN (ider_len, 1);
+ if (der[counter])
+ {
+ result = ASN1_DER_ERROR;
+ warn ();
+ goto cleanup;
+ }
+ counter++;
+ move = RIGHT;
+ break;
+ case ASN1_ETYPE_BOOLEAN:
+ DECR_LEN (ider_len, 2);
+
+ if (der[counter++] != 1)
+ {
+ result = ASN1_DER_ERROR;
+ warn ();
+ goto cleanup;
+ }
+ if (der[counter++] == 0)
+ _asn1_set_value (p, "F", 1);
+ else
+ _asn1_set_value (p, "T", 1);
+ move = RIGHT;
+ break;
+ case ASN1_ETYPE_INTEGER:
+ case ASN1_ETYPE_ENUMERATED:
+ len2 = asn1_get_length_der (der + counter, ider_len, &len3);
+ if (len2 < 0)
+ {
+ result = ASN1_DER_ERROR;
+ warn ();
+ goto cleanup;
+ }
+
+ DECR_LEN (ider_len, len3 + len2);
+
+ _asn1_set_value (p, der + counter, len3 + len2);
+ counter += len3 + len2;
+ move = RIGHT;
+ break;
+ case ASN1_ETYPE_OBJECT_ID:
+ result =
+ asn1_get_object_id_der (der + counter, ider_len, &len2,
+ temp, sizeof (temp));
+ if (result != ASN1_SUCCESS)
+ {
+ warn ();
+ goto cleanup;
+ }
+
+ DECR_LEN (ider_len, len2);
+
+ tlen = strlen (temp);
+ if (tlen > 0)
+ _asn1_set_value (p, temp, tlen + 1);
+
+ counter += len2;
+ move = RIGHT;
+ break;
+ case ASN1_ETYPE_GENERALIZED_TIME:
+ case ASN1_ETYPE_UTC_TIME:
+ result =
+ _asn1_get_time_der (type_field (p->type), der + counter,
+ ider_len, &len2, temp, sizeof (temp) - 1,
+ flags);
+ if (result != ASN1_SUCCESS)
+ {
+ warn ();
+ goto cleanup;
+ }
+
+ DECR_LEN (ider_len, len2);
+
+ tlen = strlen (temp);
+ if (tlen > 0)
+ _asn1_set_value (p, temp, tlen);
+
+ counter += len2;
+ move = RIGHT;
+ break;
+ case ASN1_ETYPE_OCTET_STRING:
+ if (counter < inner_tag_len)
+ {
+ result = ASN1_DER_ERROR;
+ warn ();
+ goto cleanup;
+ }
+
+ ptag = der + counter - inner_tag_len;
+ if ((flags & ASN1_DECODE_FLAG_STRICT_DER)
+ || !(ptag[0] & ASN1_CLASS_STRUCTURED))
+ {
+ if (ptag[0] & ASN1_CLASS_STRUCTURED)
+ {
+ result = ASN1_DER_ERROR;
+ warn ();
+ goto cleanup;
+ }
+
+ len2 = asn1_get_length_der (der + counter, ider_len, &len3);
+ if (len2 < 0)
+ {
+ result = ASN1_DER_ERROR;
+ warn ();
+ goto cleanup;
+ }
+
+ DECR_LEN (ider_len, len3 + len2);
+
+ _asn1_set_value (p, der + counter, len3 + len2);
+ counter += len3 + len2;
+ }
+ else
+ {
+ unsigned dflags = 0, vlen, ber_len;
+
+ if (ptag[0] & ASN1_CLASS_STRUCTURED)
+ dflags |= DECODE_FLAG_CONSTRUCTED;
+
+ result =
+ _asn1_decode_simple_ber (type_field (p->type),
+ der + counter, ider_len, &ptmp,
+ &vlen, &ber_len, dflags);
+ if (result != ASN1_SUCCESS)
+ {
+ warn ();
+ goto cleanup;
+ }
+
+ DECR_LEN (ider_len, ber_len);
+
+ _asn1_set_value_lv (p, ptmp, vlen);
+
+ counter += ber_len;
+ free (ptmp);
+ }
+ move = RIGHT;
+ break;
+ case ASN1_ETYPE_GENERALSTRING:
+ case ASN1_ETYPE_NUMERIC_STRING:
+ case ASN1_ETYPE_IA5_STRING:
+ case ASN1_ETYPE_TELETEX_STRING:
+ case ASN1_ETYPE_PRINTABLE_STRING:
+ case ASN1_ETYPE_UNIVERSAL_STRING:
+ case ASN1_ETYPE_BMP_STRING:
+ case ASN1_ETYPE_UTF8_STRING:
+ case ASN1_ETYPE_VISIBLE_STRING:
+ case ASN1_ETYPE_BIT_STRING:
+ len2 = asn1_get_length_der (der + counter, ider_len, &len3);
+ if (len2 < 0)
+ {
+ result = ASN1_DER_ERROR;
+ warn ();
+ goto cleanup;
+ }
+
+ DECR_LEN (ider_len, len3 + len2);
+
+ _asn1_set_value (p, der + counter, len3 + len2);
+ counter += len3 + len2;
+ move = RIGHT;
+ break;
+ case ASN1_ETYPE_SEQUENCE:
+ case ASN1_ETYPE_SET:
+ if (move == UP)
+ {
+ len2 = p->tmp_ival;
+ p->tmp_ival = 0;
+ if (len2 == -1)
+ { /* indefinite length method */
+ DECR_LEN (ider_len, 2);
+ if ((der[counter]) || der[counter + 1])
+ {
+ result = ASN1_DER_ERROR;
+ warn ();
+ goto cleanup;
+ }
+ counter += 2;
+ }
+ else
+ { /* definite length method */
+ if (len2 != counter)
+ {
+ result = ASN1_DER_ERROR;
+ warn ();
+ goto cleanup;
+ }
+ }
+ move = RIGHT;
+ }
+ else
+ { /* move==DOWN || move==RIGHT */
+ len3 = asn1_get_length_der (der + counter, ider_len, &len2);
+ if (IS_ERR (len3, flags))
+ {
+ result = ASN1_DER_ERROR;
+ warn ();
+ goto cleanup;
+ }
+
+ DECR_LEN (ider_len, len2);
+ counter += len2;
+
+ if (len3 > 0)
+ {
+ p->tmp_ival = counter + len3;
+ move = DOWN;
+ }
+ else if (len3 == 0)
+ {
+ p2 = p->down;
+ while (p2)
+ {
+ if (type_field (p2->type) != ASN1_ETYPE_TAG)
+ {
+ p3 = p2->right;
+ asn1_delete_structure (&p2);
+ p2 = p3;
+ }
+ else
+ p2 = p2->right;
+ }
+ move = RIGHT;
+ }
+ else
+ { /* indefinite length method */
+ p->tmp_ival = -1;
+ move = DOWN;
+ }
+ }
+ break;
+ case ASN1_ETYPE_SEQUENCE_OF:
+ case ASN1_ETYPE_SET_OF:
+ if (move == UP)
+ {
+ len2 = p->tmp_ival;
+ if (len2 == -1)
+ { /* indefinite length method */
+ if (!HAVE_TWO (ider_len)
+ || ((der[counter]) || der[counter + 1]))
+ {
+ result = _asn1_append_sequence_set (p, &tcache);
+ if (result != 0)
+ {
+ warn ();
+ goto cleanup;
+ }
+ p = tcache.tail;
+ move = RIGHT;
+ continue;
+ }
+
+ p->tmp_ival = 0;
+ tcache.tail = NULL; /* finished decoding this
structure */
+ tcache.head = NULL;
+ DECR_LEN (ider_len, 2);
+ counter += 2;
+ }
+ else
+ { /* definite length method */
+ if (len2 > counter)
+ {
+ result = _asn1_append_sequence_set (p, &tcache);
+ if (result != 0)
+ {
+ warn ();
+ goto cleanup;
+ }
+ p = tcache.tail;
+ move = RIGHT;
+ continue;
+ }
+
+ p->tmp_ival = 0;
+ tcache.tail = NULL; /* finished decoding this
structure */
+ tcache.head = NULL;
+
+ if (len2 != counter)
+ {
+ result = ASN1_DER_ERROR;
+ warn ();
+ goto cleanup;
+ }
+ }
+ }
+ else
+ { /* move==DOWN || move==RIGHT */
+ len3 = asn1_get_length_der (der + counter, ider_len, &len2);
+ if (IS_ERR (len3, flags))
+ {
+ result = ASN1_DER_ERROR;
+ warn ();
+ goto cleanup;
+ }
+
+ DECR_LEN (ider_len, len2);
+ counter += len2;
+ if (len3)
+ {
+ if (len3 > 0)
+ { /* definite length method */
+ p->tmp_ival = counter + len3;
+ }
+ else
+ { /* indefinite length method */
+ p->tmp_ival = -1;
+ }
+
+ p2 = p->down;
+ if (p2 == NULL)
+ {
+ result = ASN1_DER_ERROR;
+ warn ();
+ goto cleanup;
+ }
+
+ while ((type_field (p2->type) == ASN1_ETYPE_TAG)
+ || (type_field (p2->type) == ASN1_ETYPE_SIZE))
+ p2 = p2->right;
+ if (p2->right == NULL)
+ {
+ result = _asn1_append_sequence_set (p, &tcache);
+ if (result != 0)
+ {
+ warn ();
+ goto cleanup;
+ }
+ }
+ p = p2;
+ }
+ }
+ move = RIGHT;
+ break;
+ case ASN1_ETYPE_ANY:
+ /* Check indefinite lenth method in an EXPLICIT TAG */
+
+ if (!(flags & ASN1_DECODE_FLAG_STRICT_DER)
+ && (p->type & CONST_TAG) && tag_len == 2
+ && (der[counter - 1] == 0x80))
+ indefinite = 1;
+ else
+ indefinite = 0;
+
+ if (asn1_get_tag_der
+ (der + counter, ider_len, &class, &len2,
+ &tag) != ASN1_SUCCESS)
+ {
+ result = ASN1_DER_ERROR;
+ warn ();
+ goto cleanup;
+ }
+
+ DECR_LEN (ider_len, len2);
+
+ len4 =
+ asn1_get_length_der (der + counter + len2, ider_len, &len3);
+ if (IS_ERR (len4, flags))
+ {
+ result = ASN1_DER_ERROR;
+ warn ();
+ goto cleanup;
+ }
+ if (len4 != -1) /* definite */
+ {
+ len2 += len4;
+
+ DECR_LEN (ider_len, len4 + len3);
+ _asn1_set_value_lv (p, der + counter, len2 + len3);
+ counter += len2 + len3;
+ }
+ else /* == -1 */
+ { /* indefinite length */
+ ider_len += len2; /* undo DECR_LEN */
+
+ if (counter == 0)
+ {
+ result = ASN1_DER_ERROR;
+ warn ();
+ goto cleanup;
+ }
+
+ result =
+ _asn1_get_indefinite_length_string (der + counter,
+ ider_len, &len2);
+ if (result != ASN1_SUCCESS)
+ {
+ warn ();
+ goto cleanup;
+ }
+
+ DECR_LEN (ider_len, len2);
+ _asn1_set_value_lv (p, der + counter, len2);
+ counter += len2;
+
+ }
+
+ /* Check if a couple of 0x00 are present due to an EXPLICIT TAG
with
+ an indefinite length method. */
+ if (indefinite)
+ {
+ DECR_LEN (ider_len, 2);
+ if (!der[counter] && !der[counter + 1])
+ {
+ counter += 2;
+ }
+ else
+ {
+ result = ASN1_DER_ERROR;
+ warn ();
+ goto cleanup;
+ }
+ }
+
+ move = RIGHT;
+ break;
+ default:
+ move = (move == UP) ? RIGHT : DOWN;
+ break;
+ }
+ }
+
+ if (p)
+ {
+ p->end = counter - 1;
+ }
+
+ if (p == node && move != DOWN)
+ break;
+
+ if (move == DOWN)
+ {
+ if (p->down)
+ p = p->down;
+ else
+ move = RIGHT;
+ }
+ if ((move == RIGHT) && !(p->type & CONST_SET))
+ {
+ if (p->right)
+ p = p->right;
+ else
+ move = UP;
+ }
+ if (move == UP)
+ p = _asn1_find_up (p);
+ }
+
+ _asn1_delete_not_used (*element);
+
+ if ((ider_len < 0) ||
+ (!(flags & ASN1_DECODE_FLAG_ALLOW_PADDING) && (ider_len != 0)))
+ {
+ warn ();
+ result = ASN1_DER_ERROR;
+ goto cleanup;
+ }
+
+ *max_ider_len = total_len - ider_len;
+
+ return ASN1_SUCCESS;
+
+cleanup:
+ asn1_delete_structure (element);
+ return result;
+}
+
+
+/**
+ * asn1_der_decoding:
+ * @element: pointer to an ASN1 structure.
+ * @ider: vector that contains the DER encoding.
+ * @ider_len: number of bytes of *@ider: @ider[0]..@ider[len-1].
+ * @errorDescription: null-terminated string contains details when an
+ * error occurred.
+ *
+ * Fill the structure *@element with values of a DER encoding
+ * string. The structure must just be created with function
+ * asn1_create_element().
+ *
+ * Note that the *@element variable is provided as a pointer for
+ * historical reasons.
+ *
+ * Returns: %ASN1_SUCCESS if DER encoding OK, %ASN1_ELEMENT_NOT_FOUND
+ * if @ELEMENT is %NULL, and %ASN1_TAG_ERROR or
+ * %ASN1_DER_ERROR if the der encoding doesn't match the structure
+ * name (*@ELEMENT deleted).
+ **/
+int
+asn1_der_decoding (asn1_node * element, const void *ider, int ider_len,
+ char *errorDescription)
+{
+ return asn1_der_decoding2 (element, ider, &ider_len, 0, errorDescription);
+}
+
+/**
+ * asn1_der_decoding_element:
+ * @structure: pointer to an ASN1 structure
+ * @elementName: name of the element to fill
+ * @ider: vector that contains the DER encoding of the whole structure.
+ * @len: number of bytes of *der: der[0]..der[len-1]
+ * @errorDescription: null-terminated string contains details when an
+ * error occurred.
+ *
+ * Fill the element named @ELEMENTNAME with values of a DER encoding
+ * string. The structure must just be created with function
+ * asn1_create_element(). The DER vector must contain the encoding
+ * string of the whole @STRUCTURE. If an error occurs during the
+ * decoding procedure, the *@STRUCTURE is deleted and set equal to
+ * %NULL.
+ *
+ * This function is deprecated and may just be an alias to asn1_der_decoding
+ * in future versions. Use asn1_der_decoding() instead.
+ *
+ * Returns: %ASN1_SUCCESS if DER encoding OK, %ASN1_ELEMENT_NOT_FOUND
+ * if ELEMENT is %NULL or @elementName == NULL, and
+ * %ASN1_TAG_ERROR or %ASN1_DER_ERROR if the der encoding doesn't
+ * match the structure @structure (*ELEMENT deleted).
+ **/
+int
+asn1_der_decoding_element (asn1_node * structure, const char *elementName,
+ const void *ider, int len, char *errorDescription)
+{
+ return asn1_der_decoding (structure, ider, len, errorDescription);
+}
+
+/**
+ * asn1_der_decoding_startEnd:
+ * @element: pointer to an ASN1 element
+ * @ider: vector that contains the DER encoding.
+ * @ider_len: number of bytes of *@ider: @ider[0]..@ider[len-1]
+ * @name_element: an element of NAME structure.
+ * @start: the position of the first byte of NAME_ELEMENT decoding
+ * (@ider[*start])
+ * @end: the position of the last byte of NAME_ELEMENT decoding
+ * (@ider[*end])
+ *
+ * Find the start and end point of an element in a DER encoding
+ * string. I mean that if you have a der encoding and you have already
+ * used the function asn1_der_decoding() to fill a structure, it may
+ * happen that you want to find the piece of string concerning an
+ * element of the structure.
+ *
+ * One example is the sequence "tbsCertificate" inside an X509
+ * certificate.
+ *
+ * Note that since libtasn1 3.7 the @ider and @ider_len parameters
+ * can be omitted, if the element is already decoded using asn1_der_decoding().
+ *
+ * Returns: %ASN1_SUCCESS if DER encoding OK, %ASN1_ELEMENT_NOT_FOUND
+ * if ELEMENT is %asn1_node EMPTY or @name_element is not a valid
+ * element, %ASN1_TAG_ERROR or %ASN1_DER_ERROR if the der encoding
+ * doesn't match the structure ELEMENT.
+ **/
+int
+asn1_der_decoding_startEnd (asn1_node element, const void *ider, int ider_len,
+ const char *name_element, int *start, int *end)
+{
+ asn1_node node, node_to_find;
+ int result = ASN1_DER_ERROR;
+
+ node = element;
+
+ if (node == NULL)
+ return ASN1_ELEMENT_NOT_FOUND;
+
+ node_to_find = asn1_find_node (node, name_element);
+
+ if (node_to_find == NULL)
+ return ASN1_ELEMENT_NOT_FOUND;
+
+ *start = node_to_find->start;
+ *end = node_to_find->end;
+
+ if (*start == 0 && *end == 0)
+ {
+ if (ider == NULL || ider_len == 0)
+ return ASN1_GENERIC_ERROR;
+
+ /* it seems asn1_der_decoding() wasn't called before. Do it now */
+ result = asn1_der_decoding (&node, ider, ider_len, NULL);
+ if (result != ASN1_SUCCESS)
+ {
+ warn ();
+ return result;
+ }
+
+ node_to_find = asn1_find_node (node, name_element);
+ if (node_to_find == NULL)
+ return ASN1_ELEMENT_NOT_FOUND;
+
+ *start = node_to_find->start;
+ *end = node_to_find->end;
+ }
+
+ if (*end < *start)
+ return ASN1_GENERIC_ERROR;
+
+ return ASN1_SUCCESS;
+}
+
+/**
+ * asn1_expand_any_defined_by:
+ * @definitions: ASN1 definitions
+ * @element: pointer to an ASN1 structure
+ *
+ * Expands every "ANY DEFINED BY" element of a structure created from
+ * a DER decoding process (asn1_der_decoding function). The element
+ * ANY must be defined by an OBJECT IDENTIFIER. The type used to
+ * expand the element ANY is the first one following the definition of
+ * the actual value of the OBJECT IDENTIFIER.
+ *
+ * Returns: %ASN1_SUCCESS if Substitution OK, %ASN1_ERROR_TYPE_ANY if
+ * some "ANY DEFINED BY" element couldn't be expanded due to a
+ * problem in OBJECT_ID -> TYPE association, or other error codes
+ * depending on DER decoding.
+ **/
+int
+asn1_expand_any_defined_by (asn1_node_const definitions, asn1_node * element)
+{
+ char name[2 * ASN1_MAX_NAME_SIZE + 2], value[ASN1_MAX_NAME_SIZE];
+ int retCode = ASN1_SUCCESS, result;
+ int len, len2, len3;
+ asn1_node_const p2;
+ asn1_node p, p3, aux = NULL;
+ char errorDescription[ASN1_MAX_ERROR_DESCRIPTION_SIZE];
+ const char *definitionsName;
+
+ if ((definitions == NULL) || (*element == NULL))
+ return ASN1_ELEMENT_NOT_FOUND;
+
+ definitionsName = definitions->name;
+
+ p = *element;
+ while (p)
+ {
+
+ switch (type_field (p->type))
+ {
+ case ASN1_ETYPE_ANY:
+ if ((p->type & CONST_DEFINED_BY) && (p->value))
+ {
+ /* search the "DEF_BY" element */
+ p2 = p->down;
+ while ((p2) && (type_field (p2->type) != ASN1_ETYPE_CONSTANT))
+ p2 = p2->right;
+
+ if (!p2)
+ {
+ retCode = ASN1_ERROR_TYPE_ANY;
+ break;
+ }
+
+ p3 = _asn1_find_up (p);
+
+ if (!p3)
+ {
+ retCode = ASN1_ERROR_TYPE_ANY;
+ break;
+ }
+
+ p3 = p3->down;
+ while (p3)
+ {
+ if (!(strcmp (p3->name, p2->name)))
+ break;
+ p3 = p3->right;
+ }
+
+ if ((!p3) || (type_field (p3->type) != ASN1_ETYPE_OBJECT_ID) ||
+ (p3->value == NULL))
+ {
+
+ p3 = _asn1_find_up (p);
+ p3 = _asn1_find_up (p3);
+
+ if (!p3)
+ {
+ retCode = ASN1_ERROR_TYPE_ANY;
+ break;
+ }
+
+ p3 = p3->down;
+
+ while (p3)
+ {
+ if (!(strcmp (p3->name, p2->name)))
+ break;
+ p3 = p3->right;
+ }
+
+ if ((!p3) || (type_field (p3->type) != ASN1_ETYPE_OBJECT_ID)
+ || (p3->value == NULL))
+ {
+ retCode = ASN1_ERROR_TYPE_ANY;
+ break;
+ }
+ }
+
+ /* search the OBJECT_ID into definitions */
+ p2 = definitions->down;
+ while (p2)
+ {
+ if ((type_field (p2->type) == ASN1_ETYPE_OBJECT_ID) &&
+ (p2->type & CONST_ASSIGN))
+ {
+ snprintf (name, sizeof (name), "%s.%s", definitionsName,
+ p2->name);
+
+ len = ASN1_MAX_NAME_SIZE;
+ result =
+ asn1_read_value (definitions, name, value, &len);
+
+ if ((result == ASN1_SUCCESS)
+ && (!_asn1_strcmp (p3->value, value)))
+ {
+ p2 = p2->right; /* pointer to the structure to
+ use for expansion */
+ while ((p2) && (p2->type & CONST_ASSIGN))
+ p2 = p2->right;
+
+ if (p2)
+ {
+ snprintf (name, sizeof (name), "%s.%s",
+ definitionsName, p2->name);
+
+ result =
+ asn1_create_element (definitions, name, &aux);
+ if (result == ASN1_SUCCESS)
+ {
+ _asn1_cpy_name (aux, p);
+ len2 =
+ asn1_get_length_der (p->value,
+ p->value_len, &len3);
+ if (len2 < 0)
+ return ASN1_DER_ERROR;
+
+ result =
+ asn1_der_decoding (&aux, p->value + len3,
+ len2,
+ errorDescription);
+ if (result == ASN1_SUCCESS)
+ {
+
+ _asn1_set_right (aux, p->right);
+ _asn1_set_right (p, aux);
+
+ result = asn1_delete_structure (&p);
+ if (result == ASN1_SUCCESS)
+ {
+ p = aux;
+ aux = NULL;
+ break;
+ }
+ else
+ { /* error with
asn1_delete_structure */
+ asn1_delete_structure (&aux);
+ retCode = result;
+ break;
+ }
+ }
+ else
+ { /* error with asn1_der_decoding */
+ retCode = result;
+ break;
+ }
+ }
+ else
+ { /* error with asn1_create_element */
+ retCode = result;
+ break;
+ }
+ }
+ else
+ { /* error with the pointer to the structure to
exapand */
+ retCode = ASN1_ERROR_TYPE_ANY;
+ break;
+ }
+ }
+ }
+ p2 = p2->right;
+ } /* end while */
+
+ if (!p2)
+ {
+ retCode = ASN1_ERROR_TYPE_ANY;
+ break;
+ }
+
+ }
+ break;
+ default:
+ break;
+ }
+
+
+ if (p->down)
+ {
+ p = p->down;
+ }
+ else if (p == *element)
+ {
+ p = NULL;
+ break;
+ }
+ else if (p->right)
+ p = p->right;
+ else
+ {
+ while (1)
+ {
+ p = _asn1_find_up (p);
+ if (p == *element)
+ {
+ p = NULL;
+ break;
+ }
+ if (p->right)
+ {
+ p = p->right;
+ break;
+ }
+ }
+ }
+ }
+
+ return retCode;
+}
+
+/**
+ * asn1_expand_octet_string:
+ * @definitions: ASN1 definitions
+ * @element: pointer to an ASN1 structure
+ * @octetName: name of the OCTECT STRING field to expand.
+ * @objectName: name of the OBJECT IDENTIFIER field to use to define
+ * the type for expansion.
+ *
+ * Expands an "OCTET STRING" element of a structure created from a DER
+ * decoding process (the asn1_der_decoding() function). The type used
+ * for expansion is the first one following the definition of the
+ * actual value of the OBJECT IDENTIFIER indicated by OBJECTNAME.
+ *
+ * Returns: %ASN1_SUCCESS if substitution OK, %ASN1_ELEMENT_NOT_FOUND
+ * if @objectName or @octetName are not correct,
+ * %ASN1_VALUE_NOT_VALID if it wasn't possible to find the type to
+ * use for expansion, or other errors depending on DER decoding.
+ **/
+int
+asn1_expand_octet_string (asn1_node_const definitions, asn1_node * element,
+ const char *octetName, const char *objectName)
+{
+ char name[2 * ASN1_MAX_NAME_SIZE + 1], value[ASN1_MAX_NAME_SIZE];
+ int retCode = ASN1_SUCCESS, result;
+ int len, len2, len3;
+ asn1_node_const p2;
+ asn1_node aux = NULL;
+ asn1_node octetNode = NULL, objectNode = NULL;
+ char errorDescription[ASN1_MAX_ERROR_DESCRIPTION_SIZE];
+
+ if ((definitions == NULL) || (*element == NULL))
+ return ASN1_ELEMENT_NOT_FOUND;
+
+ octetNode = asn1_find_node (*element, octetName);
+ if (octetNode == NULL)
+ return ASN1_ELEMENT_NOT_FOUND;
+ if (type_field (octetNode->type) != ASN1_ETYPE_OCTET_STRING)
+ return ASN1_ELEMENT_NOT_FOUND;
+ if (octetNode->value == NULL)
+ return ASN1_VALUE_NOT_FOUND;
+
+ objectNode = asn1_find_node (*element, objectName);
+ if (objectNode == NULL)
+ return ASN1_ELEMENT_NOT_FOUND;
+
+ if (type_field (objectNode->type) != ASN1_ETYPE_OBJECT_ID)
+ return ASN1_ELEMENT_NOT_FOUND;
+
+ if (objectNode->value == NULL)
+ return ASN1_VALUE_NOT_FOUND;
+
+
+ /* search the OBJECT_ID into definitions */
+ p2 = definitions->down;
+ while (p2)
+ {
+ if ((type_field (p2->type) == ASN1_ETYPE_OBJECT_ID) &&
+ (p2->type & CONST_ASSIGN))
+ {
+ strcpy (name, definitions->name);
+ strcat (name, ".");
+ strcat (name, p2->name);
+
+ len = sizeof (value);
+ result = asn1_read_value (definitions, name, value, &len);
+
+ if ((result == ASN1_SUCCESS)
+ && (!_asn1_strcmp (objectNode->value, value)))
+ {
+
+ p2 = p2->right; /* pointer to the structure to
+ use for expansion */
+ while ((p2) && (p2->type & CONST_ASSIGN))
+ p2 = p2->right;
+
+ if (p2)
+ {
+ strcpy (name, definitions->name);
+ strcat (name, ".");
+ strcat (name, p2->name);
+
+ result = asn1_create_element (definitions, name, &aux);
+ if (result == ASN1_SUCCESS)
+ {
+ _asn1_cpy_name (aux, octetNode);
+ len2 =
+ asn1_get_length_der (octetNode->value,
+ octetNode->value_len, &len3);
+ if (len2 < 0)
+ return ASN1_DER_ERROR;
+
+ result =
+ asn1_der_decoding (&aux, octetNode->value + len3,
+ len2, errorDescription);
+ if (result == ASN1_SUCCESS)
+ {
+
+ _asn1_set_right (aux, octetNode->right);
+ _asn1_set_right (octetNode, aux);
+
+ result = asn1_delete_structure (&octetNode);
+ if (result == ASN1_SUCCESS)
+ {
+ aux = NULL;
+ break;
+ }
+ else
+ { /* error with asn1_delete_structure */
+ asn1_delete_structure (&aux);
+ retCode = result;
+ break;
+ }
+ }
+ else
+ { /* error with asn1_der_decoding */
+ retCode = result;
+ break;
+ }
+ }
+ else
+ { /* error with asn1_create_element */
+ retCode = result;
+ break;
+ }
+ }
+ else
+ { /* error with the pointer to the structure to
exapand */
+ retCode = ASN1_VALUE_NOT_VALID;
+ break;
+ }
+ }
+ }
+
+ p2 = p2->right;
+
+ }
+
+ if (!p2)
+ retCode = ASN1_VALUE_NOT_VALID;
+
+ return retCode;
+}
+
+/*-
+ * _asn1_decode_simple_der:
+ * @etype: The type of the string to be encoded (ASN1_ETYPE_)
+ * @der: the encoded string
+ * @_der_len: the bytes of the encoded string
+ * @str: a pointer to the data
+ * @str_len: the length of the data
+ * @dflags: DECODE_FLAG_*
+ *
+ * Decodes a simple DER encoded type (e.g. a string, which is not constructed).
+ * The output is a pointer inside the @der.
+ *
+ * Returns: %ASN1_SUCCESS if successful or an error value.
+ -*/
+static int
+_asn1_decode_simple_der (unsigned int etype, const unsigned char *der,
+ unsigned int _der_len, const unsigned char **str,
+ unsigned int *str_len, unsigned dflags)
+{
+ int tag_len, len_len;
+ const unsigned char *p;
+ int der_len = _der_len;
+ unsigned char class;
+ unsigned long tag;
+ long ret;
+
+ if (der == NULL || der_len == 0)
+ return ASN1_VALUE_NOT_VALID;
+
+ if (ETYPE_OK (etype) == 0 || ETYPE_IS_STRING (etype) == 0)
+ return ASN1_VALUE_NOT_VALID;
+
+ /* doesn't handle constructed classes */
+ class = ETYPE_CLASS (etype);
+ if (class != ASN1_CLASS_UNIVERSAL)
+ return ASN1_VALUE_NOT_VALID;
+
+ p = der;
+
+ if (dflags & DECODE_FLAG_HAVE_TAG)
+ {
+ ret = asn1_get_tag_der (p, der_len, &class, &tag_len, &tag);
+ if (ret != ASN1_SUCCESS)
+ return ret;
+
+ if (class != ETYPE_CLASS (etype) || tag != ETYPE_TAG (etype))
+ {
+ warn ();
+ return ASN1_DER_ERROR;
+ }
+
+ p += tag_len;
+ der_len -= tag_len;
+ if (der_len <= 0)
+ return ASN1_DER_ERROR;
+ }
+
+ ret = asn1_get_length_der (p, der_len, &len_len);
+ if (ret < 0)
+ return ASN1_DER_ERROR;
+
+ p += len_len;
+ der_len -= len_len;
+ if (der_len <= 0)
+ return ASN1_DER_ERROR;
+
+ *str_len = ret;
+ *str = p;
+
+ return ASN1_SUCCESS;
+}
+
+/**
+ * asn1_decode_simple_der:
+ * @etype: The type of the string to be encoded (ASN1_ETYPE_)
+ * @der: the encoded string
+ * @_der_len: the bytes of the encoded string
+ * @str: a pointer to the data
+ * @str_len: the length of the data
+ *
+ * Decodes a simple DER encoded type (e.g. a string, which is not constructed).
+ * The output is a pointer inside the @der.
+ *
+ * Returns: %ASN1_SUCCESS if successful or an error value.
+ **/
+int
+asn1_decode_simple_der (unsigned int etype, const unsigned char *der,
+ unsigned int _der_len, const unsigned char **str,
+ unsigned int *str_len)
+{
+ return _asn1_decode_simple_der (etype, der, _der_len, str, str_len,
+ DECODE_FLAG_HAVE_TAG);
+}
+
+static int
+append (uint8_t ** dst, unsigned *dst_size, const unsigned char *src,
+ unsigned src_size)
+{
+ if (src_size == 0)
+ return ASN1_SUCCESS;
+
+ *dst = _asn1_realloc (*dst, *dst_size + src_size);
+ if (*dst == NULL)
+ return ASN1_MEM_ALLOC_ERROR;
+ memcpy (*dst + *dst_size, src, src_size);
+ *dst_size += src_size;
+ return ASN1_SUCCESS;
+}
+
+/*-
+ * _asn1_decode_simple_ber:
+ * @etype: The type of the string to be encoded (ASN1_ETYPE_)
+ * @der: the encoded string
+ * @_der_len: the bytes of the encoded string
+ * @str: a pointer to the data
+ * @str_len: the length of the data
+ * @ber_len: the total length occupied by BER (may be %NULL)
+ * @have_tag: whether a DER tag is included
+ *
+ * Decodes a BER encoded type. The output is an allocated value
+ * of the data. This decodes BER STRINGS only. Other types are
+ * decoded as DER.
+ *
+ * Returns: %ASN1_SUCCESS if successful or an error value.
+ -*/
+static int
+_asn1_decode_simple_ber (unsigned int etype, const unsigned char *der,
+ unsigned int _der_len, unsigned char **str,
+ unsigned int *str_len, unsigned int *ber_len,
+ unsigned dflags)
+{
+ int tag_len, len_len;
+ const unsigned char *p;
+ int der_len = _der_len;
+ uint8_t *total = NULL;
+ unsigned total_size = 0;
+ unsigned char class;
+ unsigned long tag;
+ unsigned char *out = NULL;
+ const unsigned char *cout = NULL;
+ unsigned out_len;
+ long result;
+
+ if (ber_len)
+ *ber_len = 0;
+
+ if (der == NULL || der_len == 0)
+ {
+ warn ();
+ return ASN1_VALUE_NOT_VALID;
+ }
+
+ if (ETYPE_OK (etype) == 0)
+ {
+ warn ();
+ return ASN1_VALUE_NOT_VALID;
+ }
+
+ /* doesn't handle constructed + definite classes */
+ class = ETYPE_CLASS (etype);
+ if (class != ASN1_CLASS_UNIVERSAL)
+ {
+ warn ();
+ return ASN1_VALUE_NOT_VALID;
+ }
+
+ p = der;
+
+ if (dflags & DECODE_FLAG_HAVE_TAG)
+ {
+ result = asn1_get_tag_der (p, der_len, &class, &tag_len, &tag);
+ if (result != ASN1_SUCCESS)
+ {
+ warn ();
+ return result;
+ }
+
+ if (tag != ETYPE_TAG (etype))
+ {
+ warn ();
+ return ASN1_DER_ERROR;
+ }
+
+ p += tag_len;
+
+ DECR_LEN (der_len, tag_len);
+
+ if (ber_len)
+ *ber_len += tag_len;
+ }
+
+ /* indefinite constructed */
+ if ((((dflags & DECODE_FLAG_CONSTRUCTED) || class == ASN1_CLASS_STRUCTURED)
+ && ETYPE_IS_STRING (etype)) && !(dflags & DECODE_FLAG_LEVEL3))
+ {
+ if (der_len == 0)
+ {
+ warn ();
+ result = ASN1_DER_ERROR;
+ goto cleanup;
+ }
+
+ if (der_len > 0 && p[0] == 0x80) /* indefinite */
+ {
+ len_len = 1;
+ DECR_LEN (der_len, len_len);
+ p += len_len;
+
+ if (ber_len)
+ *ber_len += len_len;
+
+ /* decode the available octet strings */
+ do
+ {
+ unsigned tmp_len;
+ unsigned flags = DECODE_FLAG_HAVE_TAG;
+
+ if (dflags & DECODE_FLAG_LEVEL1)
+ flags |= DECODE_FLAG_LEVEL2;
+ else if (dflags & DECODE_FLAG_LEVEL2)
+ flags |= DECODE_FLAG_LEVEL3;
+ else
+ flags |= DECODE_FLAG_LEVEL1;
+
+ result =
+ _asn1_decode_simple_ber (etype, p, der_len, &out, &out_len,
+ &tmp_len, flags);
+ if (result != ASN1_SUCCESS)
+ {
+ warn ();
+ goto cleanup;
+ }
+
+ p += tmp_len;
+ DECR_LEN (der_len, tmp_len);
+
+ if (ber_len)
+ *ber_len += tmp_len;
+
+ DECR_LEN (der_len, 2); /* we need the EOC */
+
+ result = append (&total, &total_size, out, out_len);
+ if (result != ASN1_SUCCESS)
+ {
+ warn ();
+ goto cleanup;
+ }
+
+ free (out);
+ out = NULL;
+
+ if (p[0] == 0 && p[1] == 0) /* EOC */
+ {
+ if (ber_len)
+ *ber_len += 2;
+ break;
+ }
+
+ /* no EOC */
+ der_len += 2;
+
+ if (der_len == 2)
+ {
+ warn ();
+ result = ASN1_DER_ERROR;
+ goto cleanup;
+ }
+ }
+ while (1);
+ }
+ else /* constructed */
+ {
+ long const_len;
+
+ result = asn1_get_length_ber (p, der_len, &len_len);
+ if (result < 0)
+ {
+ warn ();
+ result = ASN1_DER_ERROR;
+ goto cleanup;
+ }
+
+ DECR_LEN (der_len, len_len);
+ p += len_len;
+
+ const_len = result;
+
+ if (ber_len)
+ *ber_len += len_len;
+
+ /* decode the available octet strings */
+ while (const_len > 0)
+ {
+ unsigned tmp_len;
+ unsigned flags = DECODE_FLAG_HAVE_TAG;
+
+ if (dflags & DECODE_FLAG_LEVEL1)
+ flags |= DECODE_FLAG_LEVEL2;
+ else if (dflags & DECODE_FLAG_LEVEL2)
+ flags |= DECODE_FLAG_LEVEL3;
+ else
+ flags |= DECODE_FLAG_LEVEL1;
+
+ result =
+ _asn1_decode_simple_ber (etype, p, der_len, &out, &out_len,
+ &tmp_len, flags);
+ if (result != ASN1_SUCCESS)
+ {
+ warn ();
+ goto cleanup;
+ }
+
+ p += tmp_len;
+ DECR_LEN (der_len, tmp_len);
+ DECR_LEN (const_len, tmp_len);
+
+ if (ber_len)
+ *ber_len += tmp_len;
+
+ result = append (&total, &total_size, out, out_len);
+ if (result != ASN1_SUCCESS)
+ {
+ warn ();
+ goto cleanup;
+ }
+
+ free (out);
+ out = NULL;
+ }
+ }
+ }
+ else if (class == ETYPE_CLASS (etype))
+ {
+ if (ber_len)
+ {
+ result = asn1_get_length_der (p, der_len, &len_len);
+ if (result < 0)
+ {
+ warn ();
+ result = ASN1_DER_ERROR;
+ goto cleanup;
+ }
+ *ber_len += result + len_len;
+ }
+
+ /* non-string values are decoded as DER */
+ result =
+ _asn1_decode_simple_der (etype, der, _der_len, &cout, &out_len,
+ dflags);
+ if (result != ASN1_SUCCESS)
+ {
+ warn ();
+ goto cleanup;
+ }
+
+ result = append (&total, &total_size, cout, out_len);
+ if (result != ASN1_SUCCESS)
+ {
+ warn ();
+ goto cleanup;
+ }
+ }
+ else
+ {
+ warn ();
+ result = ASN1_DER_ERROR;
+ goto cleanup;
+ }
+
+ *str = total;
+ *str_len = total_size;
+
+ return ASN1_SUCCESS;
+cleanup:
+ free (out);
+ free (total);
+ return result;
+}
+
+/**
+ * asn1_decode_simple_ber:
+ * @etype: The type of the string to be encoded (ASN1_ETYPE_)
+ * @der: the encoded string
+ * @_der_len: the bytes of the encoded string
+ * @str: a pointer to the data
+ * @str_len: the length of the data
+ * @ber_len: the total length occupied by BER (may be %NULL)
+ *
+ * Decodes a BER encoded type. The output is an allocated value
+ * of the data. This decodes BER STRINGS only. Other types are
+ * decoded as DER.
+ *
+ * Returns: %ASN1_SUCCESS if successful or an error value.
+ **/
+int
+asn1_decode_simple_ber (unsigned int etype, const unsigned char *der,
+ unsigned int _der_len, unsigned char **str,
+ unsigned int *str_len, unsigned int *ber_len)
+{
+ return _asn1_decode_simple_ber (etype, der, _der_len, str, str_len, ber_len,
+ DECODE_FLAG_HAVE_TAG);
+}
diff --git a/grub-core/lib/libtasn1/lib/element.c
b/grub-core/lib/libtasn1/lib/element.c
new file mode 100644
index 000000000..d4c558e10
--- /dev/null
+++ b/grub-core/lib/libtasn1/lib/element.c
@@ -0,0 +1,1109 @@
+/*
+ * Copyright (C) 2000-2022 Free Software Foundation, Inc.
+ *
+ * This file is part of LIBTASN1.
+ *
+ * The LIBTASN1 library is free software; you can redistribute it
+ * and/or modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
+ * 02110-1301, USA
+ */
+
+/*****************************************************/
+/* File: element.c */
+/* Description: Functions with the read and write */
+/* functions. */
+/*****************************************************/
+
+
+#include <int.h>
+#include "parser_aux.h"
+#include <gstr.h>
+#include "structure.h"
+#include "c-ctype.h"
+#include "element.h"
+
+void
+_asn1_hierarchical_name (asn1_node_const node, char *name, int name_size)
+{
+ asn1_node_const p;
+ char tmp_name[64];
+
+ p = node;
+
+ name[0] = 0;
+
+ while (p != NULL)
+ {
+ if (p->name[0] != 0)
+ {
+ _asn1_str_cpy (tmp_name, sizeof (tmp_name), name),
+ _asn1_str_cpy (name, name_size, p->name);
+ _asn1_str_cat (name, name_size, ".");
+ _asn1_str_cat (name, name_size, tmp_name);
+ }
+ p = _asn1_find_up (p);
+ }
+
+ if (name[0] == 0)
+ _asn1_str_cpy (name, name_size, "ROOT");
+}
+
+
+/******************************************************************/
+/* Function : _asn1_convert_integer */
+/* Description: converts an integer from a null terminated string */
+/* to der decoding. The convertion from a null */
+/* terminated string to an integer is made with */
+/* the 'strtol' function. */
+/* Parameters: */
+/* value: null terminated string to convert. */
+/* value_out: convertion result (memory must be already */
+/* allocated). */
+/* value_out_size: number of bytes of value_out. */
+/* len: number of significant byte of value_out. */
+/* Return: ASN1_MEM_ERROR or ASN1_SUCCESS */
+/******************************************************************/
+int
+_asn1_convert_integer (const unsigned char *value, unsigned char *value_out,
+ int value_out_size, int *len)
+{
+ char negative;
+ unsigned char val[SIZEOF_UNSIGNED_LONG_INT];
+ long valtmp;
+ int k, k2;
+
+ valtmp = _asn1_strtol (value, NULL, 10);
+
+ for (k = 0; k < SIZEOF_UNSIGNED_LONG_INT; k++)
+ {
+ val[SIZEOF_UNSIGNED_LONG_INT - k - 1] = (valtmp >> (8 * k)) & 0xFF;
+ }
+
+ if (val[0] & 0x80)
+ negative = 1;
+ else
+ negative = 0;
+
+ for (k = 0; k < SIZEOF_UNSIGNED_LONG_INT - 1; k++)
+ {
+ if (negative && (val[k] != 0xFF))
+ break;
+ else if (!negative && val[k])
+ break;
+ }
+
+ if ((negative && !(val[k] & 0x80)) || (!negative && (val[k] & 0x80)))
+ k--;
+
+ *len = SIZEOF_UNSIGNED_LONG_INT - k;
+
+ if (SIZEOF_UNSIGNED_LONG_INT - k > value_out_size)
+ /* VALUE_OUT is too short to contain the value conversion */
+ return ASN1_MEM_ERROR;
+
+ if (value_out != NULL)
+ {
+ for (k2 = k; k2 < SIZEOF_UNSIGNED_LONG_INT; k2++)
+ value_out[k2 - k] = val[k2];
+ }
+
+#if 0
+ printf ("_asn1_convert_integer: valueIn=%s, lenOut=%d", value, *len);
+ for (k = 0; k < SIZEOF_UNSIGNED_LONG_INT; k++)
+ printf (", vOut[%d]=%d", k, value_out[k]);
+ printf ("\n");
+#endif
+
+ return ASN1_SUCCESS;
+}
+
+/* Appends a new element into the sequence (or set) defined by this
+ * node. The new element will have a name of '?number', where number
+ * is a monotonically increased serial number.
+ *
+ * The last element in the list may be provided in @pcache, to avoid
+ * traversing the list, an expensive operation in long lists.
+ *
+ * On success it returns in @pcache the added element (which is the
+ * tail in the list of added elements).
+ */
+int
+_asn1_append_sequence_set (asn1_node node, struct node_tail_cache_st *pcache)
+{
+ asn1_node p, p2;
+ char temp[LTOSTR_MAX_SIZE + 1];
+ long n;
+
+ if (!node || !(node->down))
+ return ASN1_GENERIC_ERROR;
+
+ p = node->down;
+ while ((type_field (p->type) == ASN1_ETYPE_TAG)
+ || (type_field (p->type) == ASN1_ETYPE_SIZE))
+ p = p->right;
+
+ p2 = _asn1_copy_structure3 (p);
+ if (p2 == NULL)
+ return ASN1_GENERIC_ERROR;
+
+ if (pcache == NULL || pcache->tail == NULL || pcache->head != node)
+ {
+ while (p->right)
+ {
+ p = p->right;
+ }
+ }
+ else
+ {
+ p = pcache->tail;
+ }
+
+ _asn1_set_right (p, p2);
+ if (pcache)
+ {
+ pcache->head = node;
+ pcache->tail = p2;
+ }
+
+ if (p->name[0] == 0)
+ _asn1_str_cpy (temp, sizeof (temp), "?1");
+ else
+ {
+ n = strtol (p->name + 1, NULL, 0);
+ n++;
+ temp[0] = '?';
+ _asn1_ltostr (n, temp + 1);
+ }
+ _asn1_set_name (p2, temp);
+ /* p2->type |= CONST_OPTION; */
+
+ return ASN1_SUCCESS;
+}
+
+
+/**
+ * asn1_write_value:
+ * @node_root: pointer to a structure
+ * @name: the name of the element inside the structure that you want to set.
+ * @ivalue: vector used to specify the value to set. If len is >0,
+ * VALUE must be a two's complement form integer. if len=0 *VALUE
+ * must be a null terminated string with an integer value.
+ * @len: number of bytes of *value to use to set the value:
+ * value[0]..value[len-1] or 0 if value is a null terminated string
+ *
+ * Set the value of one element inside a structure.
+ *
+ * If an element is OPTIONAL and you want to delete it, you must use
+ * the value=NULL and len=0. Using "pkix.asn":
+ *
+ * result=asn1_write_value(cert, "tbsCertificate.issuerUniqueID",
+ * NULL, 0);
+ *
+ * Description for each type:
+ *
+ * INTEGER: VALUE must contain a two's complement form integer.
+ *
+ * value[0]=0xFF , len=1 -> integer=-1.
+ * value[0]=0xFF value[1]=0xFF , len=2 -> integer=-1.
+ * value[0]=0x01 , len=1 -> integer= 1.
+ * value[0]=0x00 value[1]=0x01 , len=2 -> integer= 1.
+ * value="123" , len=0 -> integer= 123.
+ *
+ * ENUMERATED: As INTEGER (but only with not negative numbers).
+ *
+ * BOOLEAN: VALUE must be the null terminated string "TRUE" or
+ * "FALSE" and LEN != 0.
+ *
+ * value="TRUE" , len=1 -> boolean=TRUE.
+ * value="FALSE" , len=1 -> boolean=FALSE.
+ *
+ * OBJECT IDENTIFIER: VALUE must be a null terminated string with
+ * each number separated by a dot (e.g. "1.2.3.543.1"). LEN != 0.
+ *
+ * value="1 2 840 10040 4 3" , len=1 -> OID=dsa-with-sha.
+ *
+ * UTCTime: VALUE must be a null terminated string in one of these
+ * formats: "YYMMDDhhmmssZ", "YYMMDDhhmmssZ",
+ * "YYMMDDhhmmss+hh'mm'", "YYMMDDhhmmss-hh'mm'",
+ * "YYMMDDhhmm+hh'mm'", or "YYMMDDhhmm-hh'mm'". LEN != 0.
+ *
+ * value="9801011200Z" , len=1 -> time=Jannuary 1st, 1998
+ * at 12h 00m Greenwich Mean Time
+ *
+ * GeneralizedTime: VALUE must be in one of this format:
+ * "YYYYMMDDhhmmss.sZ", "YYYYMMDDhhmmss.sZ",
+ * "YYYYMMDDhhmmss.s+hh'mm'", "YYYYMMDDhhmmss.s-hh'mm'",
+ * "YYYYMMDDhhmm+hh'mm'", or "YYYYMMDDhhmm-hh'mm'" where ss.s
+ * indicates the seconds with any precision like "10.1" or "01.02".
+ * LEN != 0
+ *
+ * value="2001010112001.12-0700" , len=1 -> time=Jannuary
+ * 1st, 2001 at 12h 00m 01.12s Pacific Daylight Time
+ *
+ * OCTET STRING: VALUE contains the octet string and LEN is the
+ * number of octets.
+ *
+ * value="$\backslash$x01$\backslash$x02$\backslash$x03" ,
+ * len=3 -> three bytes octet string
+ *
+ * GeneralString: VALUE contains the generalstring and LEN is the
+ * number of octets.
+ *
+ * value="$\backslash$x01$\backslash$x02$\backslash$x03" ,
+ * len=3 -> three bytes generalstring
+ *
+ * BIT STRING: VALUE contains the bit string organized by bytes and
+ * LEN is the number of bits.
+ *
+ * value="$\backslash$xCF" , len=6 -> bit string="110011" (six
+ * bits)
+ *
+ * CHOICE: if NAME indicates a choice type, VALUE must specify one of
+ * the alternatives with a null terminated string. LEN != 0. Using
+ * "pkix.asn"\:
+ *
+ * result=asn1_write_value(cert,
+ * "certificate1.tbsCertificate.subject", "rdnSequence",
+ * 1);
+ *
+ * ANY: VALUE indicates the der encoding of a structure. LEN != 0.
+ *
+ * SEQUENCE OF: VALUE must be the null terminated string "NEW" and
+ * LEN != 0. With this instruction another element is appended in
+ * the sequence. The name of this element will be "?1" if it's the
+ * first one, "?2" for the second and so on.
+ *
+ * Using "pkix.asn"\:
+ *
+ * result=asn1_write_value(cert,
+ * "certificate1.tbsCertificate.subject.rdnSequence", "NEW", 1);
+ *
+ * SET OF: the same as SEQUENCE OF. Using "pkix.asn":
+ *
+ * result=asn1_write_value(cert,
+ * "tbsCertificate.subject.rdnSequence.?LAST", "NEW", 1);
+ *
+ * Returns: %ASN1_SUCCESS if the value was set,
+ * %ASN1_ELEMENT_NOT_FOUND if @name is not a valid element, and
+ * %ASN1_VALUE_NOT_VALID if @ivalue has a wrong format.
+ **/
+int
+asn1_write_value (asn1_node node_root, const char *name,
+ const void *ivalue, int len)
+{
+ asn1_node node, p, p2;
+ unsigned char *temp, *value_temp = NULL, *default_temp = NULL;
+ int len2, k, k2, negative;
+ size_t i;
+ const unsigned char *value = ivalue;
+ unsigned int type;
+
+ node = asn1_find_node (node_root, name);
+ if (node == NULL)
+ return ASN1_ELEMENT_NOT_FOUND;
+
+ if ((node->type & CONST_OPTION) && (value == NULL) && (len == 0))
+ {
+ asn1_delete_structure (&node);
+ return ASN1_SUCCESS;
+ }
+
+ type = type_field (node->type);
+
+ if ((type == ASN1_ETYPE_SEQUENCE_OF || type == ASN1_ETYPE_SET_OF)
+ && (value == NULL) && (len == 0))
+ {
+ p = node->down;
+ while ((type_field (p->type) == ASN1_ETYPE_TAG)
+ || (type_field (p->type) == ASN1_ETYPE_SIZE))
+ p = p->right;
+
+ while (p->right)
+ asn1_delete_structure (&p->right);
+
+ return ASN1_SUCCESS;
+ }
+
+ /* Don't allow element deletion for other types */
+ if (value == NULL)
+ {
+ return ASN1_VALUE_NOT_VALID;
+ }
+
+ switch (type)
+ {
+ case ASN1_ETYPE_BOOLEAN:
+ if (!_asn1_strcmp (value, "TRUE"))
+ {
+ if (node->type & CONST_DEFAULT)
+ {
+ p = node->down;
+ while (type_field (p->type) != ASN1_ETYPE_DEFAULT)
+ p = p->right;
+ if (p->type & CONST_TRUE)
+ _asn1_set_value (node, NULL, 0);
+ else
+ _asn1_set_value (node, "T", 1);
+ }
+ else
+ _asn1_set_value (node, "T", 1);
+ }
+ else if (!_asn1_strcmp (value, "FALSE"))
+ {
+ if (node->type & CONST_DEFAULT)
+ {
+ p = node->down;
+ while (type_field (p->type) != ASN1_ETYPE_DEFAULT)
+ p = p->right;
+ if (p->type & CONST_FALSE)
+ _asn1_set_value (node, NULL, 0);
+ else
+ _asn1_set_value (node, "F", 1);
+ }
+ else
+ _asn1_set_value (node, "F", 1);
+ }
+ else
+ return ASN1_VALUE_NOT_VALID;
+ break;
+ case ASN1_ETYPE_INTEGER:
+ case ASN1_ETYPE_ENUMERATED:
+ if (len == 0)
+ {
+ if ((c_isdigit (value[0])) || (value[0] == '-'))
+ {
+ value_temp = malloc (SIZEOF_UNSIGNED_LONG_INT);
+ if (value_temp == NULL)
+ return ASN1_MEM_ALLOC_ERROR;
+
+ _asn1_convert_integer (value, value_temp,
+ SIZEOF_UNSIGNED_LONG_INT, &len);
+ }
+ else
+ { /* is an identifier like v1 */
+ if (!(node->type & CONST_LIST))
+ return ASN1_VALUE_NOT_VALID;
+ p = node->down;
+ while (p)
+ {
+ if (type_field (p->type) == ASN1_ETYPE_CONSTANT)
+ {
+ if (!_asn1_strcmp (p->name, value))
+ {
+ value_temp = malloc (SIZEOF_UNSIGNED_LONG_INT);
+ if (value_temp == NULL)
+ return ASN1_MEM_ALLOC_ERROR;
+
+ _asn1_convert_integer (p->value,
+ value_temp,
+ SIZEOF_UNSIGNED_LONG_INT,
+ &len);
+ break;
+ }
+ }
+ p = p->right;
+ }
+ if (p == NULL)
+ return ASN1_VALUE_NOT_VALID;
+ }
+ }
+ else
+ { /* len != 0 */
+ value_temp = malloc (len);
+ if (value_temp == NULL)
+ return ASN1_MEM_ALLOC_ERROR;
+ memcpy (value_temp, value, len);
+ }
+
+ if (value_temp[0] & 0x80)
+ negative = 1;
+ else
+ negative = 0;
+
+ if (negative && (type_field (node->type) == ASN1_ETYPE_ENUMERATED))
+ {
+ free (value_temp);
+ return ASN1_VALUE_NOT_VALID;
+ }
+
+ for (k = 0; k < len - 1; k++)
+ if (negative && (value_temp[k] != 0xFF))
+ break;
+ else if (!negative && value_temp[k])
+ break;
+
+ if ((negative && !(value_temp[k] & 0x80)) ||
+ (!negative && (value_temp[k] & 0x80)))
+ k--;
+
+ _asn1_set_value_lv (node, value_temp + k, len - k);
+
+ if (node->type & CONST_DEFAULT)
+ {
+ p = node->down;
+ while (type_field (p->type) != ASN1_ETYPE_DEFAULT)
+ p = p->right;
+ if ((c_isdigit (p->value[0])) || (p->value[0] == '-'))
+ {
+ default_temp = malloc (SIZEOF_UNSIGNED_LONG_INT);
+ if (default_temp == NULL)
+ {
+ free (value_temp);
+ return ASN1_MEM_ALLOC_ERROR;
+ }
+
+ _asn1_convert_integer (p->value, default_temp,
+ SIZEOF_UNSIGNED_LONG_INT, &len2);
+ }
+ else
+ { /* is an identifier like v1 */
+ if (!(node->type & CONST_LIST))
+ {
+ free (value_temp);
+ return ASN1_VALUE_NOT_VALID;
+ }
+ p2 = node->down;
+ while (p2)
+ {
+ if (type_field (p2->type) == ASN1_ETYPE_CONSTANT)
+ {
+ if (!_asn1_strcmp (p2->name, p->value))
+ {
+ default_temp = malloc (SIZEOF_UNSIGNED_LONG_INT);
+ if (default_temp == NULL)
+ {
+ free (value_temp);
+ return ASN1_MEM_ALLOC_ERROR;
+ }
+
+ _asn1_convert_integer (p2->value,
+ default_temp,
+ SIZEOF_UNSIGNED_LONG_INT,
+ &len2);
+ break;
+ }
+ }
+ p2 = p2->right;
+ }
+ if (p2 == NULL)
+ {
+ free (value_temp);
+ return ASN1_VALUE_NOT_VALID;
+ }
+ }
+
+
+ if ((len - k) == len2)
+ {
+ for (k2 = 0; k2 < len2; k2++)
+ if (value_temp[k + k2] != default_temp[k2])
+ {
+ break;
+ }
+ if (k2 == len2)
+ _asn1_set_value (node, NULL, 0);
+ }
+ free (default_temp);
+ }
+ free (value_temp);
+ break;
+ case ASN1_ETYPE_OBJECT_ID:
+ for (i = 0; i < _asn1_strlen (value); i++)
+ if ((!c_isdigit (value[i])) && (value[i] != '.') && (value[i] != '+'))
+ return ASN1_VALUE_NOT_VALID;
+ if (node->type & CONST_DEFAULT)
+ {
+ p = node->down;
+ while (type_field (p->type) != ASN1_ETYPE_DEFAULT)
+ p = p->right;
+ if (!_asn1_strcmp (value, p->value))
+ {
+ _asn1_set_value (node, NULL, 0);
+ break;
+ }
+ }
+ _asn1_set_value (node, value, _asn1_strlen (value) + 1);
+ break;
+ case ASN1_ETYPE_UTC_TIME:
+ {
+ len = _asn1_strlen (value);
+ if (len < 11)
+ return ASN1_VALUE_NOT_VALID;
+ for (k = 0; k < 10; k++)
+ if (!c_isdigit (value[k]))
+ return ASN1_VALUE_NOT_VALID;
+ switch (len)
+ {
+ case 11:
+ if (value[10] != 'Z')
+ return ASN1_VALUE_NOT_VALID;
+ break;
+ case 13:
+ if ((!c_isdigit (value[10])) || (!c_isdigit (value[11])) ||
+ (value[12] != 'Z'))
+ return ASN1_VALUE_NOT_VALID;
+ break;
+ case 15:
+ if ((value[10] != '+') && (value[10] != '-'))
+ return ASN1_VALUE_NOT_VALID;
+ for (k = 11; k < 15; k++)
+ if (!c_isdigit (value[k]))
+ return ASN1_VALUE_NOT_VALID;
+ break;
+ case 17:
+ if ((!c_isdigit (value[10])) || (!c_isdigit (value[11])))
+ return ASN1_VALUE_NOT_VALID;
+ if ((value[12] != '+') && (value[12] != '-'))
+ return ASN1_VALUE_NOT_VALID;
+ for (k = 13; k < 17; k++)
+ if (!c_isdigit (value[k]))
+ return ASN1_VALUE_NOT_VALID;
+ break;
+ default:
+ return ASN1_VALUE_NOT_FOUND;
+ }
+ _asn1_set_value (node, value, len);
+ }
+ break;
+ case ASN1_ETYPE_GENERALIZED_TIME:
+ len = _asn1_strlen (value);
+ _asn1_set_value (node, value, len);
+ break;
+ case ASN1_ETYPE_OCTET_STRING:
+ case ASN1_ETYPE_GENERALSTRING:
+ case ASN1_ETYPE_NUMERIC_STRING:
+ case ASN1_ETYPE_IA5_STRING:
+ case ASN1_ETYPE_TELETEX_STRING:
+ case ASN1_ETYPE_PRINTABLE_STRING:
+ case ASN1_ETYPE_UNIVERSAL_STRING:
+ case ASN1_ETYPE_BMP_STRING:
+ case ASN1_ETYPE_UTF8_STRING:
+ case ASN1_ETYPE_VISIBLE_STRING:
+ if (len == 0)
+ len = _asn1_strlen (value);
+ _asn1_set_value_lv (node, value, len);
+ break;
+ case ASN1_ETYPE_BIT_STRING:
+ if (len == 0)
+ len = _asn1_strlen (value);
+ asn1_length_der ((len >> 3) + 2, NULL, &len2);
+ temp = malloc ((len >> 3) + 2 + len2);
+ if (temp == NULL)
+ return ASN1_MEM_ALLOC_ERROR;
+
+ asn1_bit_der (value, len, temp, &len2);
+ _asn1_set_value_m (node, temp, len2);
+ temp = NULL;
+ break;
+ case ASN1_ETYPE_CHOICE:
+ p = node->down;
+ while (p)
+ {
+ if (!_asn1_strcmp (p->name, value))
+ {
+ p2 = node->down;
+ while (p2)
+ {
+ if (p2 != p)
+ {
+ asn1_delete_structure (&p2);
+ p2 = node->down;
+ }
+ else
+ p2 = p2->right;
+ }
+ break;
+ }
+ p = p->right;
+ }
+ if (!p)
+ return ASN1_ELEMENT_NOT_FOUND;
+ break;
+ case ASN1_ETYPE_ANY:
+ _asn1_set_value_lv (node, value, len);
+ break;
+ case ASN1_ETYPE_SEQUENCE_OF:
+ case ASN1_ETYPE_SET_OF:
+ if (_asn1_strcmp (value, "NEW"))
+ return ASN1_VALUE_NOT_VALID;
+ _asn1_append_sequence_set (node, NULL);
+ break;
+ default:
+ return ASN1_ELEMENT_NOT_FOUND;
+ break;
+ }
+
+ return ASN1_SUCCESS;
+}
+
+
+#define PUT_VALUE( ptr, ptr_size, data, data_size) \
+ *len = data_size; \
+ if (ptr_size < data_size) { \
+ return ASN1_MEM_ERROR; \
+ } else { \
+ if (ptr && data_size > 0) \
+ memcpy (ptr, data, data_size); \
+ }
+
+#define PUT_STR_VALUE( ptr, ptr_size, data) \
+ *len = _asn1_strlen (data) + 1; \
+ if (ptr_size < *len) { \
+ return ASN1_MEM_ERROR; \
+ } else { \
+ /* this strcpy is checked */ \
+ if (ptr) { \
+ _asn1_strcpy (ptr, data); \
+ } \
+ }
+
+#define PUT_AS_STR_VALUE( ptr, ptr_size, data, data_size) \
+ *len = data_size + 1; \
+ if (ptr_size < *len) { \
+ return ASN1_MEM_ERROR; \
+ } else { \
+ /* this strcpy is checked */ \
+ if (ptr) { \
+ if (data_size > 0) \
+ memcpy (ptr, data, data_size); \
+ ptr[data_size] = 0; \
+ } \
+ }
+
+#define ADD_STR_VALUE( ptr, ptr_size, data) \
+ *len += _asn1_strlen(data); \
+ if (ptr_size < (int) *len) { \
+ (*len)++; \
+ return ASN1_MEM_ERROR; \
+ } else { \
+ /* this strcat is checked */ \
+ if (ptr) _asn1_strcat (ptr, data); \
+ }
+
+/**
+ * asn1_read_value:
+ * @root: pointer to a structure.
+ * @name: the name of the element inside a structure that you want to read.
+ * @ivalue: vector that will contain the element's content, must be a
+ * pointer to memory cells already allocated (may be %NULL).
+ * @len: number of bytes of *value: value[0]..value[len-1]. Initialy
+ * holds the sizeof value.
+ *
+ * Returns the value of one element inside a structure.
+ * If an element is OPTIONAL and this returns
+ * %ASN1_ELEMENT_NOT_FOUND, it means that this element wasn't present
+ * in the der encoding that created the structure. The first element
+ * of a SEQUENCE_OF or SET_OF is named "?1". The second one "?2" and
+ * so on. If the @root provided is a node to specific sequence element,
+ * then the keyword "?CURRENT" is also acceptable and indicates the
+ * current sequence element of this node.
+ *
+ * Note that there can be valid values with length zero. In these case
+ * this function will succeed and @len will be zero.
+ *
+ * INTEGER: VALUE will contain a two's complement form integer.
+ *
+ * integer=-1 -> value[0]=0xFF , len=1.
+ * integer=1 -> value[0]=0x01 , len=1.
+ *
+ * ENUMERATED: As INTEGER (but only with not negative numbers).
+ *
+ * BOOLEAN: VALUE will be the null terminated string "TRUE" or
+ * "FALSE" and LEN=5 or LEN=6.
+ *
+ * OBJECT IDENTIFIER: VALUE will be a null terminated string with
+ * each number separated by a dot (i.e. "1.2.3.543.1").
+ *
+ * LEN = strlen(VALUE)+1
+ *
+ * UTCTime: VALUE will be a null terminated string in one of these
+ * formats: "YYMMDDhhmmss+hh'mm'" or "YYMMDDhhmmss-hh'mm'".
+ * LEN=strlen(VALUE)+1.
+ *
+ * GeneralizedTime: VALUE will be a null terminated string in the
+ * same format used to set the value.
+ *
+ * OCTET STRING: VALUE will contain the octet string and LEN will be
+ * the number of octets.
+ *
+ * GeneralString: VALUE will contain the generalstring and LEN will
+ * be the number of octets.
+ *
+ * BIT STRING: VALUE will contain the bit string organized by bytes
+ * and LEN will be the number of bits.
+ *
+ * CHOICE: If NAME indicates a choice type, VALUE will specify the
+ * alternative selected.
+ *
+ * ANY: If NAME indicates an any type, VALUE will indicate the DER
+ * encoding of the structure actually used.
+ *
+ * Returns: %ASN1_SUCCESS if value is returned,
+ * %ASN1_ELEMENT_NOT_FOUND if @name is not a valid element,
+ * %ASN1_VALUE_NOT_FOUND if there isn't any value for the element
+ * selected, and %ASN1_MEM_ERROR if The value vector isn't big enough
+ * to store the result, and in this case @len will contain the number of
+ * bytes needed. On the occasion that the stored data are of zero-length
+ * this function may return %ASN1_SUCCESS even if the provided @len is zero.
+ **/
+int
+asn1_read_value (asn1_node_const root, const char *name, void *ivalue,
+ int *len)
+{
+ return asn1_read_value_type (root, name, ivalue, len, NULL);
+}
+
+/**
+ * asn1_read_value_type:
+ * @root: pointer to a structure.
+ * @name: the name of the element inside a structure that you want to read.
+ * @ivalue: vector that will contain the element's content, must be a
+ * pointer to memory cells already allocated (may be %NULL).
+ * @len: number of bytes of *value: value[0]..value[len-1]. Initialy
+ * holds the sizeof value.
+ * @etype: The type of the value read (ASN1_ETYPE)
+ *
+ * Returns the type and value of one element inside a structure.
+ * If an element is OPTIONAL and this returns
+ * %ASN1_ELEMENT_NOT_FOUND, it means that this element wasn't present
+ * in the der encoding that created the structure. The first element
+ * of a SEQUENCE_OF or SET_OF is named "?1". The second one "?2" and
+ * so on. If the @root provided is a node to specific sequence element,
+ * then the keyword "?CURRENT" is also acceptable and indicates the
+ * current sequence element of this node.
+ *
+ * Note that there can be valid values with length zero. In these case
+ * this function will succeed and @len will be zero.
+ *
+ *
+ * INTEGER: VALUE will contain a two's complement form integer.
+ *
+ * integer=-1 -> value[0]=0xFF , len=1.
+ * integer=1 -> value[0]=0x01 , len=1.
+ *
+ * ENUMERATED: As INTEGER (but only with not negative numbers).
+ *
+ * BOOLEAN: VALUE will be the null terminated string "TRUE" or
+ * "FALSE" and LEN=5 or LEN=6.
+ *
+ * OBJECT IDENTIFIER: VALUE will be a null terminated string with
+ * each number separated by a dot (i.e. "1.2.3.543.1").
+ *
+ * LEN = strlen(VALUE)+1
+ *
+ * UTCTime: VALUE will be a null terminated string in one of these
+ * formats: "YYMMDDhhmmss+hh'mm'" or "YYMMDDhhmmss-hh'mm'".
+ * LEN=strlen(VALUE)+1.
+ *
+ * GeneralizedTime: VALUE will be a null terminated string in the
+ * same format used to set the value.
+ *
+ * OCTET STRING: VALUE will contain the octet string and LEN will be
+ * the number of octets.
+ *
+ * GeneralString: VALUE will contain the generalstring and LEN will
+ * be the number of octets.
+ *
+ * BIT STRING: VALUE will contain the bit string organized by bytes
+ * and LEN will be the number of bits.
+ *
+ * CHOICE: If NAME indicates a choice type, VALUE will specify the
+ * alternative selected.
+ *
+ * ANY: If NAME indicates an any type, VALUE will indicate the DER
+ * encoding of the structure actually used.
+ *
+ * Returns: %ASN1_SUCCESS if value is returned,
+ * %ASN1_ELEMENT_NOT_FOUND if @name is not a valid element,
+ * %ASN1_VALUE_NOT_FOUND if there isn't any value for the element
+ * selected, and %ASN1_MEM_ERROR if The value vector isn't big enough
+ * to store the result, and in this case @len will contain the number of
+ * bytes needed. On the occasion that the stored data are of zero-length
+ * this function may return %ASN1_SUCCESS even if the provided @len is zero.
+ **/
+int
+asn1_read_value_type (asn1_node_const root, const char *name, void *ivalue,
+ int *len, unsigned int *etype)
+{
+ asn1_node_const node, p, p2;
+ int len2, len3, result;
+ int value_size = *len;
+ unsigned char *value = ivalue;
+ unsigned type;
+
+ node = asn1_find_node (root, name);
+ if (node == NULL)
+ return ASN1_ELEMENT_NOT_FOUND;
+
+ type = type_field (node->type);
+
+ if ((type != ASN1_ETYPE_NULL) &&
+ (type != ASN1_ETYPE_CHOICE) &&
+ !(node->type & CONST_DEFAULT) && !(node->type & CONST_ASSIGN) &&
+ (node->value == NULL))
+ return ASN1_VALUE_NOT_FOUND;
+
+ if (etype)
+ *etype = type;
+ switch (type)
+ {
+ case ASN1_ETYPE_NULL:
+ PUT_STR_VALUE (value, value_size, "NULL");
+ break;
+ case ASN1_ETYPE_BOOLEAN:
+ if ((node->type & CONST_DEFAULT) && (node->value == NULL))
+ {
+ p = node->down;
+ while (type_field (p->type) != ASN1_ETYPE_DEFAULT)
+ p = p->right;
+ if (p->type & CONST_TRUE)
+ {
+ PUT_STR_VALUE (value, value_size, "TRUE");
+ }
+ else
+ {
+ PUT_STR_VALUE (value, value_size, "FALSE");
+ }
+ }
+ else if (node->value[0] == 'T')
+ {
+ PUT_STR_VALUE (value, value_size, "TRUE");
+ }
+ else
+ {
+ PUT_STR_VALUE (value, value_size, "FALSE");
+ }
+ break;
+ case ASN1_ETYPE_INTEGER:
+ case ASN1_ETYPE_ENUMERATED:
+ if ((node->type & CONST_DEFAULT) && (node->value == NULL))
+ {
+ p = node->down;
+ while (type_field (p->type) != ASN1_ETYPE_DEFAULT)
+ p = p->right;
+ if ((c_isdigit (p->value[0])) || (p->value[0] == '-')
+ || (p->value[0] == '+'))
+ {
+ result = _asn1_convert_integer
+ (p->value, value, value_size, len);
+ if (result != ASN1_SUCCESS)
+ return result;
+ }
+ else
+ { /* is an identifier like v1 */
+ p2 = node->down;
+ while (p2)
+ {
+ if (type_field (p2->type) == ASN1_ETYPE_CONSTANT)
+ {
+ if (!_asn1_strcmp (p2->name, p->value))
+ {
+ result = _asn1_convert_integer
+ (p2->value, value, value_size, len);
+ if (result != ASN1_SUCCESS)
+ return result;
+ break;
+ }
+ }
+ p2 = p2->right;
+ }
+ }
+ }
+ else
+ {
+ len2 = -1;
+ result = asn1_get_octet_der
+ (node->value, node->value_len, &len2, value, value_size, len);
+ if (result != ASN1_SUCCESS)
+ return result;
+ }
+ break;
+ case ASN1_ETYPE_OBJECT_ID:
+ if (node->type & CONST_ASSIGN)
+ {
+ *len = 0;
+ if (value)
+ value[0] = 0;
+ p = node->down;
+ while (p)
+ {
+ if (type_field (p->type) == ASN1_ETYPE_CONSTANT)
+ {
+ ADD_STR_VALUE (value, value_size, p->value);
+ if (p->right)
+ {
+ ADD_STR_VALUE (value, value_size, ".");
+ }
+ }
+ p = p->right;
+ }
+ (*len)++;
+ }
+ else if ((node->type & CONST_DEFAULT) && (node->value == NULL))
+ {
+ p = node->down;
+ while (type_field (p->type) != ASN1_ETYPE_DEFAULT)
+ p = p->right;
+ PUT_STR_VALUE (value, value_size, p->value);
+ }
+ else
+ {
+ PUT_STR_VALUE (value, value_size, node->value);
+ }
+ break;
+ case ASN1_ETYPE_GENERALIZED_TIME:
+ case ASN1_ETYPE_UTC_TIME:
+ PUT_AS_STR_VALUE (value, value_size, node->value, node->value_len);
+ break;
+ case ASN1_ETYPE_OCTET_STRING:
+ case ASN1_ETYPE_GENERALSTRING:
+ case ASN1_ETYPE_NUMERIC_STRING:
+ case ASN1_ETYPE_IA5_STRING:
+ case ASN1_ETYPE_TELETEX_STRING:
+ case ASN1_ETYPE_PRINTABLE_STRING:
+ case ASN1_ETYPE_UNIVERSAL_STRING:
+ case ASN1_ETYPE_BMP_STRING:
+ case ASN1_ETYPE_UTF8_STRING:
+ case ASN1_ETYPE_VISIBLE_STRING:
+ len2 = -1;
+ result = asn1_get_octet_der
+ (node->value, node->value_len, &len2, value, value_size, len);
+ if (result != ASN1_SUCCESS)
+ return result;
+ break;
+ case ASN1_ETYPE_BIT_STRING:
+ len2 = -1;
+ result = asn1_get_bit_der
+ (node->value, node->value_len, &len2, value, value_size, len);
+ if (result != ASN1_SUCCESS)
+ return result;
+ break;
+ case ASN1_ETYPE_CHOICE:
+ PUT_STR_VALUE (value, value_size, node->down->name);
+ break;
+ case ASN1_ETYPE_ANY:
+ len3 = -1;
+ len2 = asn1_get_length_der (node->value, node->value_len, &len3);
+ if (len2 < 0)
+ return ASN1_DER_ERROR;
+ PUT_VALUE (value, value_size, node->value + len3, len2);
+ break;
+ default:
+ return ASN1_ELEMENT_NOT_FOUND;
+ break;
+ }
+ return ASN1_SUCCESS;
+}
+
+
+/**
+ * asn1_read_tag:
+ * @root: pointer to a structure
+ * @name: the name of the element inside a structure.
+ * @tagValue: variable that will contain the TAG value.
+ * @classValue: variable that will specify the TAG type.
+ *
+ * Returns the TAG and the CLASS of one element inside a structure.
+ * CLASS can have one of these constants: %ASN1_CLASS_APPLICATION,
+ * %ASN1_CLASS_UNIVERSAL, %ASN1_CLASS_PRIVATE or
+ * %ASN1_CLASS_CONTEXT_SPECIFIC.
+ *
+ * Returns: %ASN1_SUCCESS if successful, %ASN1_ELEMENT_NOT_FOUND if
+ * @name is not a valid element.
+ **/
+int
+asn1_read_tag (asn1_node_const root, const char *name, int *tagValue,
+ int *classValue)
+{
+ asn1_node node, p, pTag;
+
+ node = asn1_find_node (root, name);
+ if (node == NULL)
+ return ASN1_ELEMENT_NOT_FOUND;
+
+ p = node->down;
+
+ /* pTag will points to the IMPLICIT TAG */
+ pTag = NULL;
+ if (node->type & CONST_TAG)
+ {
+ while (p)
+ {
+ if (type_field (p->type) == ASN1_ETYPE_TAG)
+ {
+ if ((p->type & CONST_IMPLICIT) && (pTag == NULL))
+ pTag = p;
+ else if (p->type & CONST_EXPLICIT)
+ pTag = NULL;
+ }
+ p = p->right;
+ }
+ }
+
+ if (pTag)
+ {
+ *tagValue = _asn1_strtoul (pTag->value, NULL, 10);
+
+ if (pTag->type & CONST_APPLICATION)
+ *classValue = ASN1_CLASS_APPLICATION;
+ else if (pTag->type & CONST_UNIVERSAL)
+ *classValue = ASN1_CLASS_UNIVERSAL;
+ else if (pTag->type & CONST_PRIVATE)
+ *classValue = ASN1_CLASS_PRIVATE;
+ else
+ *classValue = ASN1_CLASS_CONTEXT_SPECIFIC;
+ }
+ else
+ {
+ unsigned type = type_field (node->type);
+ *classValue = ASN1_CLASS_UNIVERSAL;
+
+ switch (type)
+ {
+ CASE_HANDLED_ETYPES:
+ *tagValue = _asn1_tags[type].tag;
+ break;
+ case ASN1_ETYPE_TAG:
+ case ASN1_ETYPE_CHOICE:
+ case ASN1_ETYPE_ANY:
+ *tagValue = -1;
+ break;
+ default:
+ break;
+ }
+ }
+
+ return ASN1_SUCCESS;
+}
+
+/**
+ * asn1_read_node_value:
+ * @node: pointer to a node.
+ * @data: a point to a asn1_data_node_st
+ *
+ * Returns the value a data node inside a asn1_node structure.
+ * The data returned should be handled as constant values.
+ *
+ * Returns: %ASN1_SUCCESS if the node exists.
+ **/
+int
+asn1_read_node_value (asn1_node_const node, asn1_data_node_st * data)
+{
+ data->name = node->name;
+ data->value = node->value;
+ data->value_len = node->value_len;
+ data->type = type_field (node->type);
+
+ return ASN1_SUCCESS;
+}
diff --git a/grub-core/lib/libtasn1/lib/element.h
b/grub-core/lib/libtasn1/lib/element.h
new file mode 100644
index 000000000..8dd0ceba8
--- /dev/null
+++ b/grub-core/lib/libtasn1/lib/element.h
@@ -0,0 +1,42 @@
+/*
+ * Copyright (C) 2000-2022 Free Software Foundation, Inc.
+ *
+ * This file is part of LIBTASN1.
+ *
+ * The LIBTASN1 library is free software; you can redistribute it
+ * and/or modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
+ * 02110-1301, USA
+ */
+
+#ifndef _ELEMENT_H
+# define _ELEMENT_H
+
+
+struct node_tail_cache_st
+{
+ asn1_node head; /* the first element of the sequence */
+ asn1_node tail;
+};
+
+int _asn1_append_sequence_set (asn1_node node,
+ struct node_tail_cache_st *pcached);
+
+int _asn1_convert_integer (const unsigned char *value,
+ unsigned char *value_out,
+ int value_out_size, int *len);
+
+void _asn1_hierarchical_name (asn1_node_const node, char *name,
+ int name_size);
+
+#endif
diff --git a/grub-core/lib/libtasn1/lib/errors.c
b/grub-core/lib/libtasn1/lib/errors.c
new file mode 100644
index 000000000..aef5dfe6f
--- /dev/null
+++ b/grub-core/lib/libtasn1/lib/errors.c
@@ -0,0 +1,100 @@
+/*
+ * Copyright (C) 2002-2022 Free Software Foundation, Inc.
+ *
+ * This file is part of LIBTASN1.
+ *
+ * The LIBTASN1 library is free software; you can redistribute it
+ * and/or modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
+ * 02110-1301, USA
+ */
+
+#include <int.h>
+#ifdef STDC_HEADERS
+# include <stdarg.h>
+#endif
+
+#define LIBTASN1_ERROR_ENTRY(name) { #name, name }
+
+struct libtasn1_error_entry
+{
+ const char *name;
+ int number;
+};
+typedef struct libtasn1_error_entry libtasn1_error_entry;
+
+static const libtasn1_error_entry error_algorithms[] = {
+ LIBTASN1_ERROR_ENTRY (ASN1_SUCCESS),
+ LIBTASN1_ERROR_ENTRY (ASN1_FILE_NOT_FOUND),
+ LIBTASN1_ERROR_ENTRY (ASN1_ELEMENT_NOT_FOUND),
+ LIBTASN1_ERROR_ENTRY (ASN1_IDENTIFIER_NOT_FOUND),
+ LIBTASN1_ERROR_ENTRY (ASN1_DER_ERROR),
+ LIBTASN1_ERROR_ENTRY (ASN1_VALUE_NOT_FOUND),
+ LIBTASN1_ERROR_ENTRY (ASN1_GENERIC_ERROR),
+ LIBTASN1_ERROR_ENTRY (ASN1_VALUE_NOT_VALID),
+ LIBTASN1_ERROR_ENTRY (ASN1_TAG_ERROR),
+ LIBTASN1_ERROR_ENTRY (ASN1_TAG_IMPLICIT),
+ LIBTASN1_ERROR_ENTRY (ASN1_ERROR_TYPE_ANY),
+ LIBTASN1_ERROR_ENTRY (ASN1_SYNTAX_ERROR),
+ LIBTASN1_ERROR_ENTRY (ASN1_MEM_ERROR),
+ LIBTASN1_ERROR_ENTRY (ASN1_MEM_ALLOC_ERROR),
+ LIBTASN1_ERROR_ENTRY (ASN1_DER_OVERFLOW),
+ LIBTASN1_ERROR_ENTRY (ASN1_NAME_TOO_LONG),
+ LIBTASN1_ERROR_ENTRY (ASN1_ARRAY_ERROR),
+ LIBTASN1_ERROR_ENTRY (ASN1_ELEMENT_NOT_EMPTY),
+ LIBTASN1_ERROR_ENTRY (ASN1_TIME_ENCODING_ERROR),
+ LIBTASN1_ERROR_ENTRY (ASN1_RECURSION),
+ {0, 0}
+};
+
+/**
+ * asn1_perror:
+ * @error: is an error returned by a libtasn1 function.
+ *
+ * Prints a string to stderr with a description of an error. This
+ * function is like perror(). The only difference is that it accepts
+ * an error returned by a libtasn1 function.
+ *
+ * Since: 1.6
+ **/
+void
+asn1_perror (int error)
+{
+ const char *str = asn1_strerror (error);
+ fprintf (stderr, "LIBTASN1 ERROR: %s\n", str ? str : "(null)");
+}
+
+/**
+ * asn1_strerror:
+ * @error: is an error returned by a libtasn1 function.
+ *
+ * Returns a string with a description of an error. This function is
+ * similar to strerror. The only difference is that it accepts an
+ * error (number) returned by a libtasn1 function.
+ *
+ * Returns: Pointer to static zero-terminated string describing error
+ * code.
+ *
+ * Since: 1.6
+ **/
+const char *
+asn1_strerror (int error)
+{
+ const libtasn1_error_entry *p;
+
+ for (p = error_algorithms; p->name != NULL; p++)
+ if (p->number == error)
+ return p->name + sizeof ("ASN1_") - 1;
+
+ return NULL;
+}
diff --git a/grub-core/lib/libtasn1/lib/gstr.c
b/grub-core/lib/libtasn1/lib/gstr.c
new file mode 100644
index 000000000..eef419554
--- /dev/null
+++ b/grub-core/lib/libtasn1/lib/gstr.c
@@ -0,0 +1,74 @@
+/*
+ * Copyright (C) 2002-2022 Free Software Foundation, Inc.
+ *
+ * This file is part of LIBTASN1.
+ *
+ * The LIBTASN1 library is free software; you can redistribute it
+ * and/or modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
+ * 02110-1301, USA
+ */
+
+#include <int.h>
+#include "gstr.h"
+
+/* These function are like strcat, strcpy. They only
+ * do bounds checking (they shouldn't cause buffer overruns),
+ * and they always produce null terminated strings.
+ *
+ * They should be used only with null terminated strings.
+ */
+void
+_asn1_str_cat (char *dest, size_t dest_tot_size, const char *src)
+{
+ size_t str_size = strlen (src);
+ size_t dest_size = strlen (dest);
+
+ if (dest_tot_size - dest_size > str_size)
+ {
+ strcat (dest, src);
+ }
+ else
+ {
+ if (dest_tot_size > dest_size)
+ {
+ strncat (dest, src, (dest_tot_size - dest_size) - 1);
+ dest[dest_tot_size - 1] = 0;
+ }
+ }
+}
+
+/* Returns the bytes copied (not including the null terminator) */
+unsigned int
+_asn1_str_cpy (char *dest, size_t dest_tot_size, const char *src)
+{
+ size_t str_size = strlen (src);
+
+ if (dest_tot_size > str_size)
+ {
+ strcpy (dest, src);
+ return str_size;
+ }
+ else
+ {
+ if (dest_tot_size > 0)
+ {
+ str_size = dest_tot_size - 1;
+ memcpy (dest, src, str_size);
+ dest[str_size] = 0;
+ return str_size;
+ }
+ else
+ return 0;
+ }
+}
diff --git a/grub-core/lib/libtasn1/lib/gstr.h
b/grub-core/lib/libtasn1/lib/gstr.h
new file mode 100644
index 000000000..99be6c4af
--- /dev/null
+++ b/grub-core/lib/libtasn1/lib/gstr.h
@@ -0,0 +1,50 @@
+/*
+ * Copyright (C) 2002-2022 Free Software Foundation, Inc.
+ *
+ * This file is part of LIBTASN1.
+ *
+ * The LIBTASN1 library is free software; you can redistribute it
+ * and/or modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
+ * 02110-1301, USA
+ */
+
+#ifndef GSTR_H
+# define GSTR_H
+
+unsigned int _asn1_str_cpy (char *dest, size_t dest_tot_size,
+ const char *src);
+void _asn1_str_cat (char *dest, size_t dest_tot_size, const char *src);
+
+# define Estrcpy(x,y) _asn1_str_cpy(x,ASN1_MAX_ERROR_DESCRIPTION_SIZE,y)
+# define Estrcat(x,y) _asn1_str_cat(x,ASN1_MAX_ERROR_DESCRIPTION_SIZE,y)
+
+inline static void
+safe_memset (void *data, int c, size_t size)
+{
+ volatile unsigned volatile_zero = 0;
+ volatile char *vdata = (volatile char *) data;
+
+ /* This is based on a nice trick for safe memset,
+ * sent by David Jacobson in the openssl-dev mailing list.
+ */
+
+ if (size > 0)
+ do
+ {
+ memset (data, c, size);
+ }
+ while (vdata[volatile_zero] != c);
+}
+
+#endif /* GSTR_H */
diff --git a/grub-core/lib/libtasn1/lib/int.h b/grub-core/lib/libtasn1/lib/int.h
new file mode 100644
index 000000000..d94d51c8c
--- /dev/null
+++ b/grub-core/lib/libtasn1/lib/int.h
@@ -0,0 +1,221 @@
+/*
+ * Copyright (C) 2002-2022 Free Software Foundation, Inc.
+ *
+ * This file is part of LIBTASN1.
+ *
+ * The LIBTASN1 library is free software; you can redistribute it
+ * and/or modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
+ * 02110-1301, USA
+ */
+
+#ifndef INT_H
+# define INT_H
+
+# ifdef HAVE_CONFIG_H
+# include <config.h>
+# endif
+
+# include <string.h>
+# include <stdlib.h>
+# include <stdio.h>
+# include <stdint.h>
+
+# ifdef HAVE_SYS_TYPES_H
+# include <sys/types.h>
+# endif
+
+# include <libtasn1.h>
+
+# define ASN1_SMALL_VALUE_SIZE 16
+
+/* This structure is also in libtasn1.h, but then contains less
+ fields. You cannot make any modifications to these first fields
+ without breaking ABI. */
+struct asn1_node_st
+{
+ /* public fields: */
+ char name[ASN1_MAX_NAME_SIZE + 1]; /* Node name */
+ unsigned int name_hash;
+ unsigned int type; /* Node type */
+ unsigned char *value; /* Node value */
+ int value_len;
+ asn1_node down; /* Pointer to the son node */
+ asn1_node right; /* Pointer to the brother node */
+ asn1_node left; /* Pointer to the next list element */
+ /* private fields: */
+ unsigned char small_value[ASN1_SMALL_VALUE_SIZE]; /* For small values */
+
+ /* values used during decoding/coding */
+ int tmp_ival;
+ unsigned start; /* the start of the DER sequence - if decoded */
+ unsigned end; /* the end of the DER sequence - if
decoded */
+};
+
+typedef struct tag_and_class_st
+{
+ unsigned tag;
+ unsigned class;
+ const char *desc;
+} tag_and_class_st;
+
+/* the types that are handled in _asn1_tags */
+# define CASE_HANDLED_ETYPES \
+ case ASN1_ETYPE_NULL: \
+ case ASN1_ETYPE_BOOLEAN: \
+ case ASN1_ETYPE_INTEGER: \
+ case ASN1_ETYPE_ENUMERATED: \
+ case ASN1_ETYPE_OBJECT_ID: \
+ case ASN1_ETYPE_OCTET_STRING: \
+ case ASN1_ETYPE_GENERALSTRING: \
+ case ASN1_ETYPE_NUMERIC_STRING: \
+ case ASN1_ETYPE_IA5_STRING: \
+ case ASN1_ETYPE_TELETEX_STRING: \
+ case ASN1_ETYPE_PRINTABLE_STRING: \
+ case ASN1_ETYPE_UNIVERSAL_STRING: \
+ case ASN1_ETYPE_BMP_STRING: \
+ case ASN1_ETYPE_UTF8_STRING: \
+ case ASN1_ETYPE_VISIBLE_STRING: \
+ case ASN1_ETYPE_BIT_STRING: \
+ case ASN1_ETYPE_SEQUENCE: \
+ case ASN1_ETYPE_SEQUENCE_OF: \
+ case ASN1_ETYPE_SET: \
+ case ASN1_ETYPE_UTC_TIME: \
+ case ASN1_ETYPE_GENERALIZED_TIME: \
+ case ASN1_ETYPE_SET_OF
+
+# define ETYPE_TAG(etype) (_asn1_tags[etype].tag)
+# define ETYPE_CLASS(etype) (_asn1_tags[etype].class)
+# define ETYPE_OK(etype) (((etype) != ASN1_ETYPE_INVALID && \
+ (etype) < _asn1_tags_size && \
+ _asn1_tags[(etype)].desc != NULL)?1:0)
+
+# define ETYPE_IS_STRING(etype) ((etype == ASN1_ETYPE_GENERALSTRING || \
+ etype == ASN1_ETYPE_NUMERIC_STRING || etype == ASN1_ETYPE_IA5_STRING ||
\
+ etype == ASN1_ETYPE_TELETEX_STRING || etype ==
ASN1_ETYPE_PRINTABLE_STRING || \
+ etype == ASN1_ETYPE_UNIVERSAL_STRING || etype == ASN1_ETYPE_BMP_STRING
|| \
+ etype == ASN1_ETYPE_UTF8_STRING || etype == ASN1_ETYPE_VISIBLE_STRING
|| \
+ etype == ASN1_ETYPE_OCTET_STRING)?1:0)
+
+extern unsigned int _asn1_tags_size;
+extern const tag_and_class_st _asn1_tags[];
+
+# define _asn1_strlen(s) strlen((const char *) s)
+# define _asn1_strtol(n,e,b) strtol((const char *) n, e, b)
+# define _asn1_strtoul(n,e,b) strtoul((const char *) n, e, b)
+# define _asn1_strcmp(a,b) strcmp((const char *)a, (const char *)b)
+# define _asn1_strcpy(a,b) strcpy((char *)a, (const char *)b)
+# define _asn1_strcat(a,b) strcat((char *)a, (const char *)b)
+
+# if SIZEOF_UNSIGNED_LONG_INT == 8
+# define _asn1_strtou64(n,e,b) strtoul((const char *) n, e, b)
+# else
+# define _asn1_strtou64(n,e,b) strtoull((const char *) n, e, b)
+# endif
+
+# define MAX_LOG_SIZE 1024 /* maximum number of characters of a log
message */
+
+/* Define used for visiting trees. */
+# define UP 1
+# define RIGHT 2
+# define DOWN 3
+
+/***********************************************************************/
+/* List of constants to better specify the type of typedef asn1_node_st. */
+/***********************************************************************/
+/* Used with TYPE_TAG */
+# define CONST_UNIVERSAL (1U<<8)
+# define CONST_PRIVATE (1U<<9)
+# define CONST_APPLICATION (1U<<10)
+# define CONST_EXPLICIT (1U<<11)
+# define CONST_IMPLICIT (1U<<12)
+
+# define CONST_TAG (1U<<13) /* Used in ASN.1 assignement */
+# define CONST_OPTION (1U<<14)
+# define CONST_DEFAULT (1U<<15)
+# define CONST_TRUE (1U<<16)
+# define CONST_FALSE (1U<<17)
+
+# define CONST_LIST (1U<<18) /* Used with TYPE_INTEGER and
TYPE_BIT_STRING */
+# define CONST_MIN_MAX (1U<<19)
+
+# define CONST_1_PARAM (1U<<20)
+
+# define CONST_SIZE (1U<<21)
+
+# define CONST_DEFINED_BY (1U<<22)
+
+/* Those two are deprecated and used for backwards compatibility */
+# define CONST_GENERALIZED (1U<<23)
+# define CONST_UTC (1U<<24)
+
+/* #define CONST_IMPORTS (1U<<25) */
+
+# define CONST_NOT_USED (1U<<26)
+# define CONST_SET (1U<<27)
+# define CONST_ASSIGN (1U<<28)
+
+# define CONST_DOWN (1U<<29)
+# define CONST_RIGHT (1U<<30)
+
+
+# define ASN1_ETYPE_TIME 17
+/****************************************/
+/* Returns the first 8 bits. */
+/* Used with the field type of asn1_node_st */
+/****************************************/
+inline static unsigned int
+type_field (unsigned int ntype)
+{
+ return (ntype & 0xff);
+}
+
+/* To convert old types from a static structure */
+inline static unsigned int
+convert_old_type (unsigned int ntype)
+{
+ unsigned int type = ntype & 0xff;
+ if (type == ASN1_ETYPE_TIME)
+ {
+ if (ntype & CONST_UTC)
+ type = ASN1_ETYPE_UTC_TIME;
+ else
+ type = ASN1_ETYPE_GENERALIZED_TIME;
+
+ ntype &= ~(CONST_UTC | CONST_GENERALIZED);
+ ntype &= 0xffffff00;
+ ntype |= type;
+
+ return ntype;
+ }
+ else
+ return ntype;
+}
+
+static inline void *
+_asn1_realloc (void *ptr, size_t size)
+{
+ void *ret;
+
+ if (size == 0)
+ return ptr;
+
+ ret = realloc (ptr, size);
+ if (ret == NULL)
+ {
+ free (ptr);
+ }
+ return ret;
+}
+
+#endif /* INT_H */
diff --git a/grub-core/lib/libtasn1/lib/parser_aux.c
b/grub-core/lib/libtasn1/lib/parser_aux.c
new file mode 100644
index 000000000..c05bd2339
--- /dev/null
+++ b/grub-core/lib/libtasn1/lib/parser_aux.c
@@ -0,0 +1,1178 @@
+/*
+ * Copyright (C) 2000-2022 Free Software Foundation, Inc.
+ *
+ * This file is part of LIBTASN1.
+ *
+ * The LIBTASN1 library is free software; you can redistribute it
+ * and/or modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
+ * 02110-1301, USA
+ */
+
+#include <limits.h> /* WORD_BIT */
+
+#include "int.h"
+#include "parser_aux.h"
+#include "gstr.h"
+#include "structure.h"
+#include "element.h"
+#include "c-ctype.h"
+
+char _asn1_identifierMissing[ASN1_MAX_NAME_SIZE + 1]; /* identifier name not
found */
+
+/* Return a hash of the N bytes of X using the method described by
+ Bruno Haible in https://www.haible.de/bruno/hashfunc.html.
+ Note that while many hash functions reduce their result via modulo
+ to a 0..table_size-1 range, this function does not do that.
+
+ This implementation has been changed from size_t -> unsigned int. */
+
+#ifdef __clang__
+__attribute__((no_sanitize ("integer")))
+#endif
+ _GL_ATTRIBUTE_PURE static unsigned int _asn1_hash_name (const char *x)
+{
+ const unsigned char *s = (unsigned char *) x;
+ unsigned h = 0;
+
+ while (*s)
+ h = (*s++) + ((h << 9) | (h >> (WORD_BIT - 9)));
+
+ return h;
+}
+
+/******************************************************/
+/* Function : _asn1_add_static_node */
+/* Description: creates a new NODE_ASN element and */
+/* puts it in the list pointed by e_list. */
+/* Parameters: */
+/* e_list: of type list_type; must be NULL initially */
+/* type: type of the new element (see ASN1_ETYPE_ */
+/* and CONST_ constants). */
+/* Return: pointer to the new element. */
+/******************************************************/
+asn1_node
+_asn1_add_static_node (list_type ** e_list, unsigned int type)
+{
+ list_type *p;
+ asn1_node punt;
+
+ punt = calloc (1, sizeof (struct asn1_node_st));
+ if (punt == NULL)
+ return NULL;
+
+ p = malloc (sizeof (list_type));
+ if (p == NULL)
+ {
+ free (punt);
+ return NULL;
+ }
+
+ p->node = punt;
+ p->next = *e_list;
+ *e_list = p;
+
+ punt->type = type;
+
+ return punt;
+}
+
+static int
+_asn1_add_static_node2 (list_type ** e_list, asn1_node node)
+{
+ list_type *p;
+
+ p = malloc (sizeof (list_type));
+ if (p == NULL)
+ {
+ return -1;
+ }
+
+ p->node = node;
+ p->next = *e_list;
+ *e_list = p;
+
+ return 0;
+}
+
+/**
+ * asn1_find_node:
+ * @pointer: NODE_ASN element pointer.
+ * @name: null terminated string with the element's name to find.
+ *
+ * Searches for an element called @name starting from @pointer. The
+ * name is composed by different identifiers separated by dots. When
+ * *@pointer has a name, the first identifier must be the name of
+ * *@pointer, otherwise it must be the name of one child of *@pointer.
+ *
+ * Returns: the search result, or %NULL if not found.
+ **/
+asn1_node
+asn1_find_node (asn1_node_const pointer, const char *name)
+{
+ asn1_node_const p;
+ char *n_end, n[ASN1_MAX_NAME_SIZE + 1];
+ const char *n_start;
+ unsigned int nsize;
+ unsigned int nhash;
+
+ if (pointer == NULL)
+ return NULL;
+
+ if (name == NULL)
+ return NULL;
+
+ p = pointer;
+ n_start = name;
+
+ if (name[0] == '?' && name[1] == 'C' && p->name[0] == '?')
+ { /* ?CURRENT */
+ n_start = strchr (n_start, '.');
+ if (n_start)
+ n_start++;
+ }
+ else if (p->name[0] != 0)
+ { /* has *pointer got a name ? */
+ n_end = strchr (n_start, '.'); /* search the first dot */
+ if (n_end)
+ {
+ nsize = n_end - n_start;
+ if (nsize >= sizeof (n))
+ return NULL;
+
+ memcpy (n, n_start, nsize);
+ n[nsize] = 0;
+ n_start = n_end;
+ n_start++;
+
+ nhash = _asn1_hash_name (n);
+ }
+ else
+ {
+ _asn1_str_cpy (n, sizeof (n), n_start);
+ nhash = _asn1_hash_name (n);
+
+ n_start = NULL;
+ }
+
+ while (p)
+ {
+ if (nhash == p->name_hash && (!strcmp (p->name, n)))
+ break;
+ else
+ p = p->right;
+ } /* while */
+
+ if (p == NULL)
+ return NULL;
+ }
+ else
+ { /* *pointer doesn't have a name */
+ if (n_start[0] == 0)
+ return (asn1_node) p;
+ }
+
+ while (n_start)
+ { /* Has the end of NAME been reached? */
+ n_end = strchr (n_start, '.'); /* search the next dot */
+ if (n_end)
+ {
+ nsize = n_end - n_start;
+ if (nsize >= sizeof (n))
+ return NULL;
+
+ memcpy (n, n_start, nsize);
+ n[nsize] = 0;
+ n_start = n_end;
+ n_start++;
+
+ nhash = _asn1_hash_name (n);
+ }
+ else
+ {
+ _asn1_str_cpy (n, sizeof (n), n_start);
+ nhash = _asn1_hash_name (n);
+ n_start = NULL;
+ }
+
+ if (p->down == NULL)
+ return NULL;
+
+ p = p->down;
+ if (p == NULL)
+ return NULL;
+
+ /* The identifier "?LAST" indicates the last element
+ in the right chain. */
+ if (n[0] == '?' && n[1] == 'L') /* ?LAST */
+ {
+ while (p->right)
+ p = p->right;
+ }
+ else
+ { /* no "?LAST" */
+ while (p)
+ {
+ if (p->name_hash == nhash && !strcmp (p->name, n))
+ break;
+ else
+ p = p->right;
+ }
+ }
+ if (p == NULL)
+ return NULL;
+ } /* while */
+
+ return (asn1_node) p;
+}
+
+
+/******************************************************************/
+/* Function : _asn1_set_value */
+/* Description: sets the field VALUE in a NODE_ASN element. The */
+/* previous value (if exist) will be lost */
+/* Parameters: */
+/* node: element pointer. */
+/* value: pointer to the value that you want to set. */
+/* len: character number of value. */
+/* Return: pointer to the NODE_ASN element. */
+/******************************************************************/
+asn1_node
+_asn1_set_value (asn1_node node, const void *value, unsigned int len)
+{
+ if (node == NULL)
+ return node;
+ if (node->value)
+ {
+ if (node->value != node->small_value)
+ free (node->value);
+ node->value = NULL;
+ node->value_len = 0;
+ }
+
+ if (!len)
+ return node;
+
+ if (len < sizeof (node->small_value))
+ {
+ node->value = node->small_value;
+ }
+ else
+ {
+ node->value = malloc (len);
+ if (node->value == NULL)
+ return NULL;
+ }
+ node->value_len = len;
+
+ memcpy (node->value, value, len);
+ return node;
+}
+
+/******************************************************************/
+/* Function : _asn1_set_value_lv */
+/* Description: sets the field VALUE in a NODE_ASN element. The */
+/* previous value (if exist) will be lost. The value */
+/* given is stored as an length-value format (LV */
+/* Parameters: */
+/* node: element pointer. */
+/* value: pointer to the value that you want to set. */
+/* len: character number of value. */
+/* Return: pointer to the NODE_ASN element. */
+/******************************************************************/
+asn1_node
+_asn1_set_value_lv (asn1_node node, const void *value, unsigned int len)
+{
+ int len2;
+ void *temp;
+
+ if (node == NULL)
+ return node;
+
+ asn1_length_der (len, NULL, &len2);
+ temp = malloc (len + len2);
+ if (temp == NULL)
+ return NULL;
+
+ asn1_octet_der (value, len, temp, &len2);
+ return _asn1_set_value_m (node, temp, len2);
+}
+
+/* the same as _asn1_set_value except that it sets an already malloc'ed
+ * value.
+ */
+asn1_node
+_asn1_set_value_m (asn1_node node, void *value, unsigned int len)
+{
+ if (node == NULL)
+ return node;
+
+ if (node->value)
+ {
+ if (node->value != node->small_value)
+ free (node->value);
+ node->value = NULL;
+ node->value_len = 0;
+ }
+
+ if (!len)
+ return node;
+
+ node->value = value;
+ node->value_len = len;
+
+ return node;
+}
+
+/******************************************************************/
+/* Function : _asn1_append_value */
+/* Description: appends to the field VALUE in a NODE_ASN element. */
+/* */
+/* Parameters: */
+/* node: element pointer. */
+/* value: pointer to the value that you want to be appended. */
+/* len: character number of value. */
+/* Return: pointer to the NODE_ASN element. */
+/******************************************************************/
+asn1_node
+_asn1_append_value (asn1_node node, const void *value, unsigned int len)
+{
+ if (node == NULL)
+ return node;
+
+ if (node->value == NULL)
+ return _asn1_set_value (node, value, len);
+
+ if (len == 0)
+ return node;
+
+ if (node->value == node->small_value)
+ {
+ /* value is in node */
+ int prev_len = node->value_len;
+ node->value_len += len;
+ node->value = malloc (node->value_len);
+ if (node->value == NULL)
+ {
+ node->value_len = 0;
+ return NULL;
+ }
+
+ if (prev_len > 0)
+ memcpy (node->value, node->small_value, prev_len);
+
+ memcpy (&node->value[prev_len], value, len);
+
+ return node;
+ }
+ else /* if (node->value != NULL && node->value !=
node->small_value) */
+ {
+ /* value is allocated */
+ int prev_len = node->value_len;
+ node->value_len += len;
+
+ node->value = _asn1_realloc (node->value, node->value_len);
+ if (node->value == NULL)
+ {
+ node->value_len = 0;
+ return NULL;
+ }
+
+ memcpy (&node->value[prev_len], value, len);
+
+ return node;
+ }
+}
+
+/******************************************************************/
+/* Function : _asn1_set_name */
+/* Description: sets the field NAME in a NODE_ASN element. The */
+/* previous value (if exist) will be lost */
+/* Parameters: */
+/* node: element pointer. */
+/* name: a null terminated string with the name that you want */
+/* to set. */
+/* Return: pointer to the NODE_ASN element. */
+/******************************************************************/
+asn1_node
+_asn1_set_name (asn1_node node, const char *name)
+{
+ if (node == NULL)
+ return node;
+
+ _asn1_str_cpy (node->name, sizeof (node->name), name ? name : "");
+ node->name_hash = _asn1_hash_name (node->name);
+
+ return node;
+}
+
+/******************************************************************/
+/* Function : _asn1_cpy_name */
+/* Description: copies the field NAME in a NODE_ASN element. */
+/* Parameters: */
+/* dst: a dest element pointer. */
+/* src: a source element pointer. */
+/* Return: pointer to the NODE_ASN element. */
+/******************************************************************/
+asn1_node
+_asn1_cpy_name (asn1_node dst, asn1_node_const src)
+{
+ if (dst == NULL)
+ return dst;
+
+ if (src == NULL)
+ {
+ dst->name[0] = 0;
+ dst->name_hash = _asn1_hash_name (dst->name);
+ return dst;
+ }
+
+ _asn1_str_cpy (dst->name, sizeof (dst->name), src->name);
+ dst->name_hash = src->name_hash;
+
+ return dst;
+}
+
+/******************************************************************/
+/* Function : _asn1_set_right */
+/* Description: sets the field RIGHT in a NODE_ASN element. */
+/* Parameters: */
+/* node: element pointer. */
+/* right: pointer to a NODE_ASN element that you want be pointed*/
+/* by NODE. */
+/* Return: pointer to *NODE. */
+/******************************************************************/
+asn1_node
+_asn1_set_right (asn1_node node, asn1_node right)
+{
+ if (node == NULL)
+ return node;
+ node->right = right;
+ if (right)
+ right->left = node;
+ return node;
+}
+
+
+/******************************************************************/
+/* Function : _asn1_get_last_right */
+/* Description: return the last element along the right chain. */
+/* Parameters: */
+/* node: starting element pointer. */
+/* Return: pointer to the last element along the right chain. */
+/******************************************************************/
+asn1_node
+_asn1_get_last_right (asn1_node_const node)
+{
+ asn1_node_const p;
+
+ if (node == NULL)
+ return NULL;
+ p = node;
+ while (p->right)
+ p = p->right;
+ return (asn1_node) p;
+}
+
+/******************************************************************/
+/* Function : _asn1_remove_node */
+/* Description: gets free the memory allocated for an NODE_ASN */
+/* element (not the elements pointed by it). */
+/* Parameters: */
+/* node: NODE_ASN element pointer. */
+/* flags: ASN1_DELETE_FLAG_* */
+/******************************************************************/
+void
+_asn1_remove_node (asn1_node node, unsigned int flags)
+{
+ if (node == NULL)
+ return;
+
+ if (node->value != NULL)
+ {
+ if (flags & ASN1_DELETE_FLAG_ZEROIZE)
+ {
+ safe_memset (node->value, 0, node->value_len);
+ }
+
+ if (node->value != node->small_value)
+ free (node->value);
+ }
+ free (node);
+}
+
+/******************************************************************/
+/* Function : _asn1_find_up */
+/* Description: return the father of the NODE_ASN element. */
+/* Parameters: */
+/* node: NODE_ASN element pointer. */
+/* Return: Null if not found. */
+/******************************************************************/
+asn1_node
+_asn1_find_up (asn1_node_const node)
+{
+ asn1_node_const p;
+
+ if (node == NULL)
+ return NULL;
+
+ p = node;
+
+ while ((p->left != NULL) && (p->left->right == p))
+ p = p->left;
+
+ return p->left;
+}
+
+static unsigned
+_asn1_is_up (asn1_node_const up_cand, asn1_node_const down)
+{
+ asn1_node_const d, u;
+
+ if (up_cand == NULL || down == NULL)
+ return 0;
+
+ d = down;
+
+ while ((u = _asn1_find_up (d)) != NULL && u != d)
+ {
+ if (u == up_cand)
+ return 1;
+ d = u;
+ }
+
+ return 0;
+}
+
+/******************************************************************/
+/* Function : _asn1_delete_node_from_list */
+/* Description: deletes the list element given */
+/******************************************************************/
+void
+_asn1_delete_node_from_list (list_type * list, asn1_node node)
+{
+ list_type *p = list;
+
+ while (p)
+ {
+ if (p->node == node)
+ p->node = NULL;
+ p = p->next;
+ }
+}
+
+/******************************************************************/
+/* Function : _asn1_delete_list */
+/* Description: deletes the list elements (not the elements */
+/* pointed by them). */
+/******************************************************************/
+void
+_asn1_delete_list (list_type * e_list)
+{
+ list_type *p;
+
+ while (e_list)
+ {
+ p = e_list;
+ e_list = e_list->next;
+ free (p);
+ }
+}
+
+/******************************************************************/
+/* Function : _asn1_delete_list_and nodes */
+/* Description: deletes the list elements and the elements */
+/* pointed by them. */
+/******************************************************************/
+void
+_asn1_delete_list_and_nodes (list_type * e_list)
+{
+ list_type *p;
+
+ while (e_list)
+ {
+ p = e_list;
+ e_list = e_list->next;
+ _asn1_remove_node (p->node, 0);
+ free (p);
+ }
+}
+
+
+char *
+_asn1_ltostr (int64_t v, char str[LTOSTR_MAX_SIZE])
+{
+ uint64_t d, r;
+ char temp[LTOSTR_MAX_SIZE];
+ int count, k, start;
+ uint64_t val;
+
+ if (v < 0)
+ {
+ str[0] = '-';
+ start = 1;
+ val = -((uint64_t) v);
+ }
+ else
+ {
+ val = v;
+ start = 0;
+ }
+
+ count = 0;
+ do
+ {
+ d = val / 10;
+ r = val - d * 10;
+ temp[start + count] = '0' + (char) r;
+ count++;
+ val = d;
+ }
+ while (val && ((start + count) < LTOSTR_MAX_SIZE - 1));
+
+ for (k = 0; k < count; k++)
+ str[k + start] = temp[start + count - k - 1];
+ str[count + start] = 0;
+ return str;
+}
+
+
+/******************************************************************/
+/* Function : _asn1_change_integer_value */
+/* Description: converts into DER coding the value assign to an */
+/* INTEGER constant. */
+/* Parameters: */
+/* node: root of an ASN1element. */
+/* Return: */
+/* ASN1_ELEMENT_NOT_FOUND if NODE is NULL, */
+/* otherwise ASN1_SUCCESS */
+/******************************************************************/
+int
+_asn1_change_integer_value (asn1_node node)
+{
+ asn1_node p;
+ unsigned char val[SIZEOF_UNSIGNED_LONG_INT];
+ unsigned char val2[SIZEOF_UNSIGNED_LONG_INT + 1];
+ int len;
+
+ if (node == NULL)
+ return ASN1_ELEMENT_NOT_FOUND;
+
+ p = node;
+ while (p)
+ {
+ if ((type_field (p->type) == ASN1_ETYPE_INTEGER)
+ && (p->type & CONST_ASSIGN))
+ {
+ if (p->value)
+ {
+ _asn1_convert_integer (p->value, val, sizeof (val), &len);
+ asn1_octet_der (val, len, val2, &len);
+ _asn1_set_value (p, val2, len);
+ }
+ }
+
+ if (p->down)
+ {
+ p = p->down;
+ }
+ else
+ {
+ if (p == node)
+ p = NULL;
+ else if (p->right)
+ p = p->right;
+ else
+ {
+ while (1)
+ {
+ p = _asn1_find_up (p);
+ if (p == node)
+ {
+ p = NULL;
+ break;
+ }
+ if (p && p->right)
+ {
+ p = p->right;
+ break;
+ }
+ }
+ }
+ }
+ }
+
+ return ASN1_SUCCESS;
+}
+
+#define MAX_CONSTANTS 1024
+/******************************************************************/
+/* Function : _asn1_expand_object_id */
+/* Description: expand the IDs of an OBJECT IDENTIFIER constant. */
+/* Parameters: */
+/* list: root of an object list */
+/* node: root of an ASN1 element. */
+/* Return: */
+/* ASN1_ELEMENT_NOT_FOUND if NODE is NULL, */
+/* otherwise ASN1_SUCCESS */
+/******************************************************************/
+int
+_asn1_expand_object_id (list_type ** list, asn1_node node)
+{
+ asn1_node p, p2, p3, p4, p5;
+ char name_root[ASN1_MAX_NAME_SIZE], name2[2 * ASN1_MAX_NAME_SIZE + 1];
+ int move, tlen, tries;
+ unsigned max_constants;
+
+ if (node == NULL)
+ return ASN1_ELEMENT_NOT_FOUND;
+
+ _asn1_str_cpy (name_root, sizeof (name_root), node->name);
+
+ p = node;
+ move = DOWN;
+ tries = 0;
+
+ while (!((p == node) && (move == UP)))
+ {
+ if (move != UP)
+ {
+ if ((type_field (p->type) == ASN1_ETYPE_OBJECT_ID)
+ && (p->type & CONST_ASSIGN))
+ {
+ p2 = p->down;
+ if (p2 && (type_field (p2->type) == ASN1_ETYPE_CONSTANT))
+ {
+ if (p2->value && !c_isdigit (p2->value[0]))
+ {
+ _asn1_str_cpy (name2, sizeof (name2), name_root);
+ _asn1_str_cat (name2, sizeof (name2), ".");
+ _asn1_str_cat (name2, sizeof (name2),
+ (char *) p2->value);
+ p3 = asn1_find_node (node, name2);
+ if (!p3 || _asn1_is_up (p2, p3) ||
+ (type_field (p3->type) != ASN1_ETYPE_OBJECT_ID) ||
+ !(p3->type & CONST_ASSIGN))
+ return ASN1_ELEMENT_NOT_FOUND;
+
+ _asn1_set_down (p, p2->right);
+ if (p2->down)
+ _asn1_delete_structure (*list, &p2->down, 0);
+ _asn1_delete_node_from_list (*list, p2);
+ _asn1_remove_node (p2, 0);
+ p2 = p;
+ p4 = p3->down;
+ max_constants = 0;
+ while (p4)
+ {
+ if (type_field (p4->type) == ASN1_ETYPE_CONSTANT)
+ {
+ max_constants++;
+ if (max_constants == MAX_CONSTANTS)
+ return ASN1_RECURSION;
+
+ p5 =
+ _asn1_add_single_node (ASN1_ETYPE_CONSTANT);
+ _asn1_set_name (p5, p4->name);
+ if (p4->value)
+ {
+ tlen = _asn1_strlen (p4->value);
+ if (tlen > 0)
+ _asn1_set_value (p5, p4->value, tlen + 1);
+ }
+ _asn1_add_static_node2 (list, p5);
+
+ if (p2 == p)
+ {
+ _asn1_set_right (p5, p->down);
+ _asn1_set_down (p, p5);
+ }
+ else
+ {
+ _asn1_set_right (p5, p2->right);
+ _asn1_set_right (p2, p5);
+ }
+ p2 = p5;
+ }
+ p4 = p4->right;
+ }
+ move = DOWN;
+
+ tries++;
+ if (tries >= EXPAND_OBJECT_ID_MAX_RECURSION)
+ return ASN1_RECURSION;
+
+ continue;
+ }
+ }
+ }
+ move = DOWN;
+ }
+ else
+ move = RIGHT;
+
+ tries = 0;
+ if (move == DOWN)
+ {
+ if (p->down)
+ p = p->down;
+ else
+ move = RIGHT;
+ }
+
+ if (p == node)
+ {
+ move = UP;
+ continue;
+ }
+
+ if (move == RIGHT)
+ {
+ if (p && p->right)
+ p = p->right;
+ else
+ move = UP;
+ }
+ if (move == UP)
+ p = _asn1_find_up (p);
+ }
+
+ /*******************************/
+ /* expand DEFAULT */
+ /*******************************/
+ p = node;
+ move = DOWN;
+
+ while (!((p == node) && (move == UP)))
+ {
+ if (move != UP)
+ {
+ if ((type_field (p->type) == ASN1_ETYPE_OBJECT_ID) &&
+ (p->type & CONST_DEFAULT))
+ {
+ p2 = p->down;
+ if (p2 && (type_field (p2->type) == ASN1_ETYPE_DEFAULT))
+ {
+ _asn1_str_cpy (name2, sizeof (name2), name_root);
+ _asn1_str_cat (name2, sizeof (name2), ".");
+ if (p2->value)
+ _asn1_str_cat (name2, sizeof (name2), (char *) p2->value);
+ p3 = asn1_find_node (node, name2);
+ if (!p3 || (type_field (p3->type) != ASN1_ETYPE_OBJECT_ID)
+ || !(p3->type & CONST_ASSIGN))
+ return ASN1_ELEMENT_NOT_FOUND;
+ p4 = p3->down;
+ name2[0] = 0;
+ while (p4)
+ {
+ if (type_field (p4->type) == ASN1_ETYPE_CONSTANT)
+ {
+ if (p4->value == NULL)
+ return ASN1_VALUE_NOT_FOUND;
+
+ if (name2[0])
+ _asn1_str_cat (name2, sizeof (name2), ".");
+ _asn1_str_cat (name2, sizeof (name2),
+ (char *) p4->value);
+ }
+ p4 = p4->right;
+ }
+ tlen = strlen (name2);
+ if (tlen > 0)
+ _asn1_set_value (p2, name2, tlen + 1);
+ }
+ }
+ move = DOWN;
+ }
+ else
+ move = RIGHT;
+
+ if (move == DOWN)
+ {
+ if (p->down)
+ p = p->down;
+ else
+ move = RIGHT;
+ }
+
+ if (p == node)
+ {
+ move = UP;
+ continue;
+ }
+
+ if (move == RIGHT)
+ {
+ if (p && p->right)
+ p = p->right;
+ else
+ move = UP;
+ }
+ if (move == UP)
+ p = _asn1_find_up (p);
+ }
+
+ return ASN1_SUCCESS;
+}
+
+
+/******************************************************************/
+/* Function : _asn1_type_set_config */
+/* Description: sets the CONST_SET and CONST_NOT_USED properties */
+/* in the fields of the SET elements. */
+/* Parameters: */
+/* node: root of an ASN1 element. */
+/* Return: */
+/* ASN1_ELEMENT_NOT_FOUND if NODE is NULL, */
+/* otherwise ASN1_SUCCESS */
+/******************************************************************/
+int
+_asn1_type_set_config (asn1_node node)
+{
+ asn1_node p, p2;
+ int move;
+
+ if (node == NULL)
+ return ASN1_ELEMENT_NOT_FOUND;
+
+ p = node;
+ move = DOWN;
+
+ while (!((p == node) && (move == UP)))
+ {
+ if (move != UP)
+ {
+ if (type_field (p->type) == ASN1_ETYPE_SET)
+ {
+ p2 = p->down;
+ while (p2)
+ {
+ if (type_field (p2->type) != ASN1_ETYPE_TAG)
+ p2->type |= CONST_SET | CONST_NOT_USED;
+ p2 = p2->right;
+ }
+ }
+ move = DOWN;
+ }
+ else
+ move = RIGHT;
+
+ if (move == DOWN)
+ {
+ if (p->down)
+ p = p->down;
+ else
+ move = RIGHT;
+ }
+
+ if (p == node)
+ {
+ move = UP;
+ continue;
+ }
+
+ if (move == RIGHT)
+ {
+ if (p && p->right)
+ p = p->right;
+ else
+ move = UP;
+ }
+ if (move == UP)
+ p = _asn1_find_up (p);
+ }
+
+ return ASN1_SUCCESS;
+}
+
+
+/******************************************************************/
+/* Function : _asn1_check_identifier */
+/* Description: checks the definitions of all the identifiers */
+/* and the first element of an OBJECT_ID (e.g. {pkix 0 4}). */
+/* The _asn1_identifierMissing global variable is filled if */
+/* necessary. */
+/* Parameters: */
+/* node: root of an ASN1 element. */
+/* Return: */
+/* ASN1_ELEMENT_NOT_FOUND if NODE is NULL, */
+/* ASN1_IDENTIFIER_NOT_FOUND if an identifier is not defined, */
+/* otherwise ASN1_SUCCESS */
+/******************************************************************/
+int
+_asn1_check_identifier (asn1_node_const node)
+{
+ asn1_node_const p, p2;
+ char name2[ASN1_MAX_NAME_SIZE * 2 + 2];
+
+ if (node == NULL)
+ return ASN1_ELEMENT_NOT_FOUND;
+
+ p = node;
+ while (p)
+ {
+ if (p->value && type_field (p->type) == ASN1_ETYPE_IDENTIFIER)
+ {
+ _asn1_str_cpy (name2, sizeof (name2), node->name);
+ _asn1_str_cat (name2, sizeof (name2), ".");
+ _asn1_str_cat (name2, sizeof (name2), (char *) p->value);
+ p2 = asn1_find_node (node, name2);
+ if (p2 == NULL)
+ {
+ if (p->value)
+ _asn1_str_cpy (_asn1_identifierMissing,
+ sizeof (_asn1_identifierMissing),
+ (char *) p->value);
+ else
+ _asn1_strcpy (_asn1_identifierMissing, "(null)");
+ return ASN1_IDENTIFIER_NOT_FOUND;
+ }
+ }
+ else if ((type_field (p->type) == ASN1_ETYPE_OBJECT_ID) &&
+ (p->type & CONST_DEFAULT))
+ {
+ p2 = p->down;
+ if (p2 && (type_field (p2->type) == ASN1_ETYPE_DEFAULT))
+ {
+ _asn1_str_cpy (name2, sizeof (name2), node->name);
+ if (p2->value)
+ {
+ _asn1_str_cat (name2, sizeof (name2), ".");
+ _asn1_str_cat (name2, sizeof (name2), (char *) p2->value);
+ _asn1_str_cpy (_asn1_identifierMissing,
+ sizeof (_asn1_identifierMissing),
+ (char *) p2->value);
+ }
+ else
+ _asn1_strcpy (_asn1_identifierMissing, "(null)");
+
+ p2 = asn1_find_node (node, name2);
+ if (!p2 || (type_field (p2->type) != ASN1_ETYPE_OBJECT_ID) ||
+ !(p2->type & CONST_ASSIGN))
+ return ASN1_IDENTIFIER_NOT_FOUND;
+ else
+ _asn1_identifierMissing[0] = 0;
+ }
+ }
+ else if ((type_field (p->type) == ASN1_ETYPE_OBJECT_ID) &&
+ (p->type & CONST_ASSIGN))
+ {
+ p2 = p->down;
+ if (p2 && (type_field (p2->type) == ASN1_ETYPE_CONSTANT))
+ {
+ if (p2->value && !c_isdigit (p2->value[0]))
+ {
+ _asn1_str_cpy (name2, sizeof (name2), node->name);
+ _asn1_str_cat (name2, sizeof (name2), ".");
+ _asn1_str_cat (name2, sizeof (name2), (char *) p2->value);
+ _asn1_str_cpy (_asn1_identifierMissing,
+ sizeof (_asn1_identifierMissing),
+ (char *) p2->value);
+
+ p2 = asn1_find_node (node, name2);
+ if (!p2 || (type_field (p2->type) != ASN1_ETYPE_OBJECT_ID)
+ || !(p2->type & CONST_ASSIGN))
+ return ASN1_IDENTIFIER_NOT_FOUND;
+ else
+ _asn1_identifierMissing[0] = 0;
+ }
+ }
+ }
+
+ if (p->down)
+ {
+ p = p->down;
+ }
+ else if (p->right)
+ p = p->right;
+ else
+ {
+ while (p)
+ {
+ p = _asn1_find_up (p);
+ if (p == node)
+ {
+ p = NULL;
+ break;
+ }
+ if (p && p->right)
+ {
+ p = p->right;
+ break;
+ }
+ }
+ }
+ }
+
+ return ASN1_SUCCESS;
+}
+
+
+/******************************************************************/
+/* Function : _asn1_set_default_tag */
+/* Description: sets the default IMPLICIT or EXPLICIT property in */
+/* the tagged elements that don't have this declaration. */
+/* Parameters: */
+/* node: pointer to a DEFINITIONS element. */
+/* Return: */
+/* ASN1_ELEMENT_NOT_FOUND if NODE is NULL or not a pointer to */
+/* a DEFINITIONS element, */
+/* otherwise ASN1_SUCCESS */
+/******************************************************************/
+int
+_asn1_set_default_tag (asn1_node node)
+{
+ asn1_node p;
+
+ if ((node == NULL) || (type_field (node->type) != ASN1_ETYPE_DEFINITIONS))
+ return ASN1_ELEMENT_NOT_FOUND;
+
+ p = node;
+ while (p)
+ {
+ if ((type_field (p->type) == ASN1_ETYPE_TAG) &&
+ !(p->type & CONST_EXPLICIT) && !(p->type & CONST_IMPLICIT))
+ {
+ if (node->type & CONST_EXPLICIT)
+ p->type |= CONST_EXPLICIT;
+ else
+ p->type |= CONST_IMPLICIT;
+ }
+
+ if (p->down)
+ {
+ p = p->down;
+ }
+ else if (p->right)
+ p = p->right;
+ else
+ {
+ while (1)
+ {
+ p = _asn1_find_up (p);
+ if (p == node)
+ {
+ p = NULL;
+ break;
+ }
+ if (p && p->right)
+ {
+ p = p->right;
+ break;
+ }
+ }
+ }
+ }
+
+ return ASN1_SUCCESS;
+}
diff --git a/grub-core/lib/libtasn1/lib/parser_aux.h
b/grub-core/lib/libtasn1/lib/parser_aux.h
new file mode 100644
index 000000000..3eac1fa30
--- /dev/null
+++ b/grub-core/lib/libtasn1/lib/parser_aux.h
@@ -0,0 +1,172 @@
+/*
+ * Copyright (C) 2000-2022 Free Software Foundation, Inc.
+ *
+ * This file is part of LIBTASN1.
+ *
+ * The LIBTASN1 library is free software; you can redistribute it
+ * and/or modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
+ * 02110-1301, USA
+ */
+
+#ifndef _PARSER_AUX_H
+# define _PARSER_AUX_H
+
+/***********************************************/
+/* Type: list_type */
+/* Description: type used in the list during */
+/* the structure creation. */
+/***********************************************/
+typedef struct list_struct
+{
+ asn1_node node;
+ struct list_struct *next;
+} list_type;
+
+/***************************************/
+/* Functions used by ASN.1 parser */
+/***************************************/
+asn1_node _asn1_add_static_node (list_type ** e_list, unsigned int type);
+
+void _asn1_delete_list (list_type * e_list);
+
+void _asn1_delete_list_and_nodes (list_type * e_list);
+
+void _asn1_delete_node_from_list (list_type * list, asn1_node node);
+
+asn1_node
+_asn1_set_value (asn1_node node, const void *value, unsigned int len);
+
+asn1_node _asn1_set_value_m (asn1_node node, void *value, unsigned int len);
+
+asn1_node
+_asn1_set_value_lv (asn1_node node, const void *value, unsigned int len);
+
+asn1_node
+_asn1_append_value (asn1_node node, const void *value, unsigned int len);
+
+asn1_node _asn1_set_name (asn1_node node, const char *name);
+
+asn1_node _asn1_cpy_name (asn1_node dst, asn1_node_const src);
+
+asn1_node _asn1_set_right (asn1_node node, asn1_node right);
+
+asn1_node _asn1_get_last_right (asn1_node_const node);
+
+void _asn1_remove_node (asn1_node node, unsigned int flags);
+
+/* Max 64-bit integer length is 20 chars + 1 for sign + 1 for null termination
*/
+# define LTOSTR_MAX_SIZE 22
+char *_asn1_ltostr (int64_t v, char str[LTOSTR_MAX_SIZE]);
+
+asn1_node _asn1_find_up (asn1_node_const node);
+
+int _asn1_change_integer_value (asn1_node node);
+
+# define EXPAND_OBJECT_ID_MAX_RECURSION 16
+int _asn1_expand_object_id (list_type ** list, asn1_node node);
+
+int _asn1_type_set_config (asn1_node node);
+
+int _asn1_check_identifier (asn1_node_const node);
+
+int _asn1_set_default_tag (asn1_node node);
+
+/******************************************************************/
+/* Function : _asn1_get_right */
+/* Description: returns the element pointed by the RIGHT field of */
+/* a NODE_ASN element. */
+/* Parameters: */
+/* node: NODE_ASN element pointer. */
+/* Return: field RIGHT of NODE. */
+/******************************************************************/
+inline static asn1_node
+_asn1_get_right (asn1_node_const node)
+{
+ if (node == NULL)
+ return NULL;
+ return node->right;
+}
+
+/******************************************************************/
+/* Function : _asn1_set_down */
+/* Description: sets the field DOWN in a NODE_ASN element. */
+/* Parameters: */
+/* node: element pointer. */
+/* down: pointer to a NODE_ASN element that you want be pointed */
+/* by NODE. */
+/* Return: pointer to *NODE. */
+/******************************************************************/
+inline static asn1_node
+_asn1_set_down (asn1_node node, asn1_node down)
+{
+ if (node == NULL)
+ return node;
+ node->down = down;
+ if (down)
+ down->left = node;
+ return node;
+}
+
+/******************************************************************/
+/* Function : _asn1_get_down */
+/* Description: returns the element pointed by the DOWN field of */
+/* a NODE_ASN element. */
+/* Parameters: */
+/* node: NODE_ASN element pointer. */
+/* Return: field DOWN of NODE. */
+/******************************************************************/
+inline static asn1_node
+_asn1_get_down (asn1_node_const node)
+{
+ if (node == NULL)
+ return NULL;
+ return node->down;
+}
+
+/******************************************************************/
+/* Function : _asn1_get_name */
+/* Description: returns the name of a NODE_ASN element. */
+/* Parameters: */
+/* node: NODE_ASN element pointer. */
+/* Return: a null terminated string. */
+/******************************************************************/
+inline static char *
+_asn1_get_name (asn1_node_const node)
+{
+ if (node == NULL)
+ return NULL;
+ return (char *) node->name;
+}
+
+/******************************************************************/
+/* Function : _asn1_mod_type */
+/* Description: change the field TYPE of an NODE_ASN element. */
+/* The new value is the old one | (bitwise or) the */
+/* paramener VALUE. */
+/* Parameters: */
+/* node: NODE_ASN element pointer. */
+/* value: the integer value that must be or-ed with the current */
+/* value of field TYPE. */
+/* Return: NODE pointer. */
+/******************************************************************/
+inline static asn1_node
+_asn1_mod_type (asn1_node node, unsigned int value)
+{
+ if (node == NULL)
+ return node;
+ node->type |= value;
+ return node;
+}
+
+#endif
diff --git a/grub-core/lib/libtasn1/lib/structure.c
b/grub-core/lib/libtasn1/lib/structure.c
new file mode 100644
index 000000000..512dd601f
--- /dev/null
+++ b/grub-core/lib/libtasn1/lib/structure.c
@@ -0,0 +1,1225 @@
+/*
+ * Copyright (C) 2002-2022 Free Software Foundation, Inc.
+ *
+ * This file is part of LIBTASN1.
+ *
+ * The LIBTASN1 library is free software; you can redistribute it
+ * and/or modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
+ * 02110-1301, USA
+ */
+
+
+/*****************************************************/
+/* File: structure.c */
+/* Description: Functions to create and delete an */
+/* ASN1 tree. */
+/*****************************************************/
+
+
+#include <int.h>
+#include <structure.h>
+#include "parser_aux.h"
+#include <gstr.h>
+
+
+extern char _asn1_identifierMissing[];
+
+
+/******************************************************/
+/* Function : _asn1_add_single_node */
+/* Description: creates a new NODE_ASN element. */
+/* Parameters: */
+/* type: type of the new element (see ASN1_ETYPE_ */
+/* and CONST_ constants). */
+/* Return: pointer to the new element. */
+/******************************************************/
+asn1_node
+_asn1_add_single_node (unsigned int type)
+{
+ asn1_node punt;
+
+ punt = calloc (1, sizeof (struct asn1_node_st));
+ if (punt == NULL)
+ return NULL;
+
+ punt->type = type;
+
+ return punt;
+}
+
+
+/******************************************************************/
+/* Function : _asn1_find_left */
+/* Description: returns the NODE_ASN element with RIGHT field that*/
+/* points the element NODE. */
+/* Parameters: */
+/* node: NODE_ASN element pointer. */
+/* Return: NULL if not found. */
+/******************************************************************/
+asn1_node
+_asn1_find_left (asn1_node_const node)
+{
+ if ((node == NULL) || (node->left == NULL) || (node->left->down == node))
+ return NULL;
+
+ return node->left;
+}
+
+
+int
+_asn1_create_static_structure (asn1_node_const pointer,
+ char *output_file_name, char *vector_name)
+{
+ FILE *file;
+ asn1_node_const p;
+ unsigned long t;
+
+ file = fopen (output_file_name, "w");
+
+ if (file == NULL)
+ return ASN1_FILE_NOT_FOUND;
+
+ fprintf (file, "#if HAVE_CONFIG_H\n");
+ fprintf (file, "# include \"config.h\"\n");
+ fprintf (file, "#endif\n\n");
+
+ fprintf (file, "#include <libtasn1.h>\n\n");
+
+ fprintf (file, "const asn1_static_node %s[] = {\n", vector_name);
+
+ p = pointer;
+
+ while (p)
+ {
+ fprintf (file, " { ");
+
+ if (p->name[0] != 0)
+ fprintf (file, "\"%s\", ", p->name);
+ else
+ fprintf (file, "NULL, ");
+
+ t = p->type;
+ if (p->down)
+ t |= CONST_DOWN;
+ if (p->right)
+ t |= CONST_RIGHT;
+
+ fprintf (file, "%lu, ", t);
+
+ if (p->value)
+ fprintf (file, "\"%s\"},\n", p->value);
+ else
+ fprintf (file, "NULL },\n");
+
+ if (p->down)
+ {
+ p = p->down;
+ }
+ else if (p->right)
+ {
+ p = p->right;
+ }
+ else
+ {
+ while (1)
+ {
+ p = _asn1_find_up (p);
+ if (p == pointer)
+ {
+ p = NULL;
+ break;
+ }
+ if (p->right)
+ {
+ p = p->right;
+ break;
+ }
+ }
+ }
+ }
+
+ fprintf (file, " { NULL, 0, NULL }\n};\n");
+
+ fclose (file);
+
+ return ASN1_SUCCESS;
+}
+
+
+/**
+ * asn1_array2tree:
+ * @array: specify the array that contains ASN.1 declarations
+ * @definitions: return the pointer to the structure created by
+ * *ARRAY ASN.1 declarations
+ * @errorDescription: return the error description.
+ *
+ * Creates the structures needed to manage the ASN.1 definitions.
+ * @array is a vector created by asn1_parser2array().
+ *
+ * Returns: %ASN1_SUCCESS if structure was created correctly,
+ * %ASN1_ELEMENT_NOT_EMPTY if *@definitions not NULL,
+ * %ASN1_IDENTIFIER_NOT_FOUND if in the file there is an identifier
+ * that is not defined (see @errorDescription for more information),
+ * %ASN1_ARRAY_ERROR if the array pointed by @array is wrong.
+ **/
+int
+asn1_array2tree (const asn1_static_node * array, asn1_node * definitions,
+ char *errorDescription)
+{
+ asn1_node p, p_last = NULL;
+ unsigned long k;
+ int move;
+ int result;
+ unsigned int type;
+ list_type *e_list = NULL;
+
+ if (errorDescription)
+ errorDescription[0] = 0;
+
+ if (*definitions != NULL)
+ return ASN1_ELEMENT_NOT_EMPTY;
+
+ move = UP;
+
+ for (k = 0; array[k].value || array[k].type || array[k].name; k++)
+ {
+ type = convert_old_type (array[k].type);
+
+ p = _asn1_add_static_node (&e_list, type & (~CONST_DOWN));
+ if (array[k].name)
+ _asn1_set_name (p, array[k].name);
+ if (array[k].value)
+ _asn1_set_value (p, array[k].value, strlen (array[k].value) + 1);
+
+ if (*definitions == NULL)
+ *definitions = p;
+
+ if (move == DOWN)
+ {
+ if (p_last && p_last->down)
+ _asn1_delete_structure (e_list, &p_last->down, 0);
+ _asn1_set_down (p_last, p);
+ }
+ else if (move == RIGHT)
+ {
+ if (p_last && p_last->right)
+ _asn1_delete_structure (e_list, &p_last->right, 0);
+ _asn1_set_right (p_last, p);
+ }
+
+ p_last = p;
+
+ if (type & CONST_DOWN)
+ move = DOWN;
+ else if (type & CONST_RIGHT)
+ move = RIGHT;
+ else
+ {
+ while (p_last != *definitions)
+ {
+ p_last = _asn1_find_up (p_last);
+
+ if (p_last == NULL)
+ break;
+
+ if (p_last->type & CONST_RIGHT)
+ {
+ p_last->type &= ~CONST_RIGHT;
+ move = RIGHT;
+ break;
+ }
+ } /* while */
+ }
+ } /* while */
+
+ if (p_last == *definitions)
+ {
+ result = _asn1_check_identifier (*definitions);
+ if (result == ASN1_SUCCESS)
+ {
+ _asn1_change_integer_value (*definitions);
+ result = _asn1_expand_object_id (&e_list, *definitions);
+ }
+ }
+ else
+ {
+ result = ASN1_ARRAY_ERROR;
+ }
+
+ if (errorDescription != NULL)
+ {
+ if (result == ASN1_IDENTIFIER_NOT_FOUND)
+ {
+ Estrcpy (errorDescription, ":: identifier '");
+ Estrcat (errorDescription, _asn1_identifierMissing);
+ Estrcat (errorDescription, "' not found");
+ }
+ else
+ errorDescription[0] = 0;
+ }
+
+ if (result != ASN1_SUCCESS)
+ {
+ _asn1_delete_list_and_nodes (e_list);
+ *definitions = NULL;
+ }
+ else
+ _asn1_delete_list (e_list);
+
+ return result;
+}
+
+/**
+ * asn1_delete_structure:
+ * @structure: pointer to the structure that you want to delete.
+ *
+ * Deletes the structure *@structure. At the end, *@structure is set
+ * to NULL.
+ *
+ * Returns: %ASN1_SUCCESS if successful, %ASN1_ELEMENT_NOT_FOUND if
+ * *@structure was NULL.
+ **/
+int
+asn1_delete_structure (asn1_node * structure)
+{
+ return _asn1_delete_structure (NULL, structure, 0);
+}
+
+/**
+ * asn1_delete_structure2:
+ * @structure: pointer to the structure that you want to delete.
+ * @flags: additional flags (see %ASN1_DELETE_FLAG_ZEROIZE)
+ *
+ * Deletes the structure *@structure. At the end, *@structure is set
+ * to NULL.
+ *
+ * Returns: %ASN1_SUCCESS if successful, %ASN1_ELEMENT_NOT_FOUND if
+ * *@structure was NULL.
+ **/
+int
+asn1_delete_structure2 (asn1_node * structure, unsigned int flags)
+{
+ return _asn1_delete_structure (NULL, structure, flags);
+}
+
+int
+_asn1_delete_structure (list_type * e_list, asn1_node * structure,
+ unsigned int flags)
+{
+ asn1_node p, p2, p3;
+
+ if (*structure == NULL)
+ return ASN1_ELEMENT_NOT_FOUND;
+
+ p = *structure;
+ while (p)
+ {
+ if (p->down)
+ {
+ p = p->down;
+ }
+ else
+ { /* no down */
+ p2 = p->right;
+ if (p != *structure)
+ {
+ p3 = _asn1_find_up (p);
+ _asn1_set_down (p3, p2);
+ if (e_list)
+ _asn1_delete_node_from_list (e_list, p);
+ _asn1_remove_node (p, flags);
+ p = p3;
+ }
+ else
+ { /* p==root */
+ p3 = _asn1_find_left (p);
+ if (!p3)
+ {
+ p3 = _asn1_find_up (p);
+ if (p3)
+ _asn1_set_down (p3, p2);
+ else
+ {
+ if (p->right)
+ p->right->left = NULL;
+ }
+ }
+ else
+ _asn1_set_right (p3, p2);
+ if (e_list)
+ _asn1_delete_node_from_list (e_list, p);
+ _asn1_remove_node (p, flags);
+ p = NULL;
+ }
+ }
+ }
+
+ *structure = NULL;
+ return ASN1_SUCCESS;
+}
+
+
+/**
+ * asn1_delete_element:
+ * @structure: pointer to the structure that contains the element you
+ * want to delete.
+ * @element_name: element's name you want to delete.
+ *
+ * Deletes the element named *@element_name inside *@structure.
+ *
+ * Returns: %ASN1_SUCCESS if successful, %ASN1_ELEMENT_NOT_FOUND if
+ * the @element_name was not found.
+ **/
+int
+asn1_delete_element (asn1_node structure, const char *element_name)
+{
+ asn1_node p2, p3, source_node;
+
+ source_node = asn1_find_node (structure, element_name);
+
+ if (source_node == NULL)
+ return ASN1_ELEMENT_NOT_FOUND;
+
+ p2 = source_node->right;
+ p3 = _asn1_find_left (source_node);
+ if (!p3)
+ {
+ p3 = _asn1_find_up (source_node);
+ if (p3)
+ _asn1_set_down (p3, p2);
+ else if (source_node->right)
+ source_node->right->left = NULL;
+ }
+ else
+ _asn1_set_right (p3, p2);
+
+ return asn1_delete_structure (&source_node);
+}
+
+#ifndef __clang_analyzer__
+asn1_node
+_asn1_copy_structure3 (asn1_node_const source_node)
+{
+ asn1_node_const p_s;
+ asn1_node dest_node, p_d, p_d_prev;
+ int move;
+
+ if (source_node == NULL)
+ return NULL;
+
+ dest_node = _asn1_add_single_node (source_node->type);
+ if (dest_node == NULL)
+ return dest_node;
+
+ p_s = source_node;
+ p_d = dest_node;
+
+ move = DOWN;
+
+ do
+ {
+ if (move != UP)
+ {
+ if (p_s->name[0] != 0)
+ _asn1_cpy_name (p_d, p_s);
+ if (p_s->value)
+ _asn1_set_value (p_d, p_s->value, p_s->value_len);
+ if (p_s->down)
+ {
+ p_s = p_s->down;
+ p_d_prev = p_d;
+ p_d = _asn1_add_single_node (p_s->type);
+ _asn1_set_down (p_d_prev, p_d);
+ continue;
+ }
+ p_d->start = p_s->start;
+ p_d->end = p_s->end;
+ }
+
+ if (p_s == source_node)
+ break;
+
+ if (p_s->right)
+ {
+ move = RIGHT;
+ p_s = p_s->right;
+ p_d_prev = p_d;
+ p_d = _asn1_add_single_node (p_s->type);
+ _asn1_set_right (p_d_prev, p_d);
+ }
+ else
+ {
+ move = UP;
+ p_s = _asn1_find_up (p_s);
+ p_d = _asn1_find_up (p_d);
+ }
+ }
+ while (p_s != source_node);
+ return dest_node;
+}
+#else
+
+/* Non-production code */
+asn1_node
+_asn1_copy_structure3 (asn1_node_const source_node)
+{
+ return NULL;
+}
+#endif /* __clang_analyzer__ */
+
+
+static asn1_node
+_asn1_copy_structure2 (asn1_node_const root, const char *source_name)
+{
+ asn1_node source_node;
+
+ source_node = asn1_find_node (root, source_name);
+
+ return _asn1_copy_structure3 (source_node);
+
+}
+
+
+static int
+_asn1_type_choice_config (asn1_node node)
+{
+ asn1_node p, p2, p3, p4;
+ int move, tlen;
+
+ if (node == NULL)
+ return ASN1_ELEMENT_NOT_FOUND;
+
+ p = node;
+ move = DOWN;
+
+ while (!((p == node) && (move == UP)))
+ {
+ if (move != UP)
+ {
+ if ((type_field (p->type) == ASN1_ETYPE_CHOICE)
+ && (p->type & CONST_TAG))
+ {
+ p2 = p->down;
+ while (p2)
+ {
+ if (type_field (p2->type) != ASN1_ETYPE_TAG)
+ {
+ p2->type |= CONST_TAG;
+ p3 = _asn1_find_left (p2);
+ while (p3)
+ {
+ if (type_field (p3->type) == ASN1_ETYPE_TAG)
+ {
+ p4 = _asn1_add_single_node (p3->type);
+ tlen = _asn1_strlen (p3->value);
+ if (tlen > 0)
+ _asn1_set_value (p4, p3->value, tlen + 1);
+ _asn1_set_right (p4, p2->down);
+ _asn1_set_down (p2, p4);
+ }
+ p3 = _asn1_find_left (p3);
+ }
+ }
+ p2 = p2->right;
+ }
+ p->type &= ~(CONST_TAG);
+ p2 = p->down;
+ while (p2)
+ {
+ p3 = p2->right;
+ if (type_field (p2->type) == ASN1_ETYPE_TAG)
+ asn1_delete_structure (&p2);
+ p2 = p3;
+ }
+ }
+ move = DOWN;
+ }
+ else
+ move = RIGHT;
+
+ if (move == DOWN)
+ {
+ if (p->down)
+ p = p->down;
+ else
+ move = RIGHT;
+ }
+
+ if (p == node)
+ {
+ move = UP;
+ continue;
+ }
+
+ if (move == RIGHT)
+ {
+ if (p->right)
+ p = p->right;
+ else
+ move = UP;
+ }
+ if (move == UP)
+ p = _asn1_find_up (p);
+ }
+
+ return ASN1_SUCCESS;
+}
+
+
+static int
+_asn1_expand_identifier (asn1_node * node, asn1_node_const root)
+{
+ asn1_node p, p2, p3;
+ char name2[ASN1_MAX_NAME_SIZE + 2];
+ int move;
+
+ if (node == NULL)
+ return ASN1_ELEMENT_NOT_FOUND;
+
+ p = *node;
+ move = DOWN;
+
+ while (!((p == *node) && (move == UP)))
+ {
+ if (move != UP)
+ {
+ if (type_field (p->type) == ASN1_ETYPE_IDENTIFIER)
+ {
+ snprintf (name2, sizeof (name2), "%s.%s", root->name, p->value);
+ p2 = _asn1_copy_structure2 (root, name2);
+ if (p2 == NULL)
+ {
+ return ASN1_IDENTIFIER_NOT_FOUND;
+ }
+ _asn1_cpy_name (p2, p);
+ p2->right = p->right;
+ p2->left = p->left;
+ if (p->right)
+ p->right->left = p2;
+ p3 = p->down;
+ if (p3)
+ {
+ while (p3->right)
+ p3 = p3->right;
+ _asn1_set_right (p3, p2->down);
+ _asn1_set_down (p2, p->down);
+ }
+
+ p3 = _asn1_find_left (p);
+ if (p3)
+ _asn1_set_right (p3, p2);
+ else
+ {
+ p3 = _asn1_find_up (p);
+ if (p3)
+ _asn1_set_down (p3, p2);
+ else
+ {
+ p2->left = NULL;
+ }
+ }
+
+ if (p->type & CONST_SIZE)
+ p2->type |= CONST_SIZE;
+ if (p->type & CONST_TAG)
+ p2->type |= CONST_TAG;
+ if (p->type & CONST_OPTION)
+ p2->type |= CONST_OPTION;
+ if (p->type & CONST_DEFAULT)
+ p2->type |= CONST_DEFAULT;
+ if (p->type & CONST_SET)
+ p2->type |= CONST_SET;
+ if (p->type & CONST_NOT_USED)
+ p2->type |= CONST_NOT_USED;
+
+ if (p == *node)
+ *node = p2;
+ _asn1_remove_node (p, 0);
+ p = p2;
+ move = DOWN;
+ continue;
+ }
+ move = DOWN;
+ }
+ else
+ move = RIGHT;
+
+ if (move == DOWN)
+ {
+ if (p->down)
+ p = p->down;
+ else
+ move = RIGHT;
+ }
+
+ if (p == *node)
+ {
+ move = UP;
+ continue;
+ }
+
+ if (move == RIGHT)
+ {
+ if (p->right)
+ p = p->right;
+ else
+ move = UP;
+ }
+ if (move == UP)
+ p = _asn1_find_up (p);
+ }
+
+ return ASN1_SUCCESS;
+}
+
+
+/**
+ * asn1_create_element:
+ * @definitions: pointer to the structure returned by "parser_asn1" function
+ * @source_name: the name of the type of the new structure (must be
+ * inside p_structure).
+ * @element: pointer to the structure created.
+ *
+ * Creates a structure of type @source_name. Example using
+ * "pkix.asn":
+ *
+ * rc = asn1_create_element(cert_def, "PKIX1.Certificate", certptr);
+ *
+ * Returns: %ASN1_SUCCESS if creation OK, %ASN1_ELEMENT_NOT_FOUND if
+ * @source_name is not known.
+ **/
+int
+asn1_create_element (asn1_node_const definitions, const char *source_name,
+ asn1_node * element)
+{
+ asn1_node dest_node;
+ int res;
+
+ dest_node = _asn1_copy_structure2 (definitions, source_name);
+
+ if (dest_node == NULL)
+ return ASN1_ELEMENT_NOT_FOUND;
+
+ _asn1_set_name (dest_node, "");
+
+ res = _asn1_expand_identifier (&dest_node, definitions);
+ _asn1_type_choice_config (dest_node);
+
+ *element = dest_node;
+
+ return res;
+}
+
+
+/**
+ * asn1_print_structure:
+ * @out: pointer to the output file (e.g. stdout).
+ * @structure: pointer to the structure that you want to visit.
+ * @name: an element of the structure
+ * @mode: specify how much of the structure to print, can be
+ * %ASN1_PRINT_NAME, %ASN1_PRINT_NAME_TYPE,
+ * %ASN1_PRINT_NAME_TYPE_VALUE, or %ASN1_PRINT_ALL.
+ *
+ * Prints on the @out file descriptor the structure's tree starting
+ * from the @name element inside the structure @structure.
+ **/
+void
+asn1_print_structure (FILE * out, asn1_node_const structure, const char *name,
+ int mode)
+{
+ asn1_node_const p, root;
+ int k, indent = 0, len, len2, len3;
+
+ if (out == NULL)
+ return;
+
+ root = asn1_find_node (structure, name);
+
+ if (root == NULL)
+ return;
+
+ p = root;
+ while (p)
+ {
+ if (mode == ASN1_PRINT_ALL)
+ {
+ for (k = 0; k < indent; k++)
+ fprintf (out, " ");
+ fprintf (out, "name:");
+ if (p->name[0] != 0)
+ fprintf (out, "%s ", p->name);
+ else
+ fprintf (out, "NULL ");
+ }
+ else
+ {
+ switch (type_field (p->type))
+ {
+ case ASN1_ETYPE_CONSTANT:
+ case ASN1_ETYPE_TAG:
+ case ASN1_ETYPE_SIZE:
+ break;
+ default:
+ for (k = 0; k < indent; k++)
+ fprintf (out, " ");
+ fprintf (out, "name:");
+ if (p->name[0] != 0)
+ fprintf (out, "%s ", p->name);
+ else
+ fprintf (out, "NULL ");
+ }
+ }
+
+ if (mode != ASN1_PRINT_NAME)
+ {
+ unsigned type = type_field (p->type);
+ switch (type)
+ {
+ case ASN1_ETYPE_CONSTANT:
+ if (mode == ASN1_PRINT_ALL)
+ fprintf (out, "type:CONST");
+ break;
+ case ASN1_ETYPE_TAG:
+ if (mode == ASN1_PRINT_ALL)
+ fprintf (out, "type:TAG");
+ break;
+ case ASN1_ETYPE_SIZE:
+ if (mode == ASN1_PRINT_ALL)
+ fprintf (out, "type:SIZE");
+ break;
+ case ASN1_ETYPE_DEFAULT:
+ fprintf (out, "type:DEFAULT");
+ break;
+ case ASN1_ETYPE_IDENTIFIER:
+ fprintf (out, "type:IDENTIFIER");
+ break;
+ case ASN1_ETYPE_ANY:
+ fprintf (out, "type:ANY");
+ break;
+ case ASN1_ETYPE_CHOICE:
+ fprintf (out, "type:CHOICE");
+ break;
+ case ASN1_ETYPE_DEFINITIONS:
+ fprintf (out, "type:DEFINITIONS");
+ break;
+ CASE_HANDLED_ETYPES:
+ fprintf (out, "%s", _asn1_tags[type].desc);
+ break;
+ default:
+ break;
+ }
+ }
+
+ if ((mode == ASN1_PRINT_NAME_TYPE_VALUE) || (mode == ASN1_PRINT_ALL))
+ {
+ switch (type_field (p->type))
+ {
+ case ASN1_ETYPE_CONSTANT:
+ if (mode == ASN1_PRINT_ALL)
+ if (p->value)
+ fprintf (out, " value:%s", p->value);
+ break;
+ case ASN1_ETYPE_TAG:
+ if (mode == ASN1_PRINT_ALL)
+ if (p->value)
+ fprintf (out, " value:%s", p->value);
+ break;
+ case ASN1_ETYPE_SIZE:
+ if (mode == ASN1_PRINT_ALL)
+ if (p->value)
+ fprintf (out, " value:%s", p->value);
+ break;
+ case ASN1_ETYPE_DEFAULT:
+ if (p->value)
+ fprintf (out, " value:%s", p->value);
+ else if (p->type & CONST_TRUE)
+ fprintf (out, " value:TRUE");
+ else if (p->type & CONST_FALSE)
+ fprintf (out, " value:FALSE");
+ break;
+ case ASN1_ETYPE_IDENTIFIER:
+ if (p->value)
+ fprintf (out, " value:%s", p->value);
+ break;
+ case ASN1_ETYPE_INTEGER:
+ if (p->value)
+ {
+ len2 = -1;
+ len = asn1_get_length_der (p->value, p->value_len, &len2);
+ fprintf (out, " value:0x");
+ if (len > 0)
+ for (k = 0; k < len; k++)
+ fprintf (out, "%02x", (unsigned) (p->value)[k + len2]);
+ }
+ break;
+ case ASN1_ETYPE_ENUMERATED:
+ if (p->value)
+ {
+ len2 = -1;
+ len = asn1_get_length_der (p->value, p->value_len, &len2);
+ fprintf (out, " value:0x");
+ if (len > 0)
+ for (k = 0; k < len; k++)
+ fprintf (out, "%02x", (unsigned) (p->value)[k + len2]);
+ }
+ break;
+ case ASN1_ETYPE_BOOLEAN:
+ if (p->value)
+ {
+ if (p->value[0] == 'T')
+ fprintf (out, " value:TRUE");
+ else if (p->value[0] == 'F')
+ fprintf (out, " value:FALSE");
+ }
+ break;
+ case ASN1_ETYPE_BIT_STRING:
+ if (p->value)
+ {
+ len2 = -1;
+ len = asn1_get_length_der (p->value, p->value_len, &len2);
+ if (len > 0)
+ {
+ fprintf (out, " value(%i):",
+ (len - 1) * 8 - (p->value[len2]));
+ for (k = 1; k < len; k++)
+ fprintf (out, "%02x",
+ (unsigned) (p->value)[k + len2]);
+ }
+ }
+ break;
+ case ASN1_ETYPE_GENERALIZED_TIME:
+ case ASN1_ETYPE_UTC_TIME:
+ if (p->value)
+ {
+ fprintf (out, " value:");
+ for (k = 0; k < p->value_len; k++)
+ fprintf (out, "%c", (p->value)[k]);
+ }
+ break;
+ case ASN1_ETYPE_GENERALSTRING:
+ case ASN1_ETYPE_NUMERIC_STRING:
+ case ASN1_ETYPE_IA5_STRING:
+ case ASN1_ETYPE_TELETEX_STRING:
+ case ASN1_ETYPE_PRINTABLE_STRING:
+ case ASN1_ETYPE_UNIVERSAL_STRING:
+ case ASN1_ETYPE_UTF8_STRING:
+ case ASN1_ETYPE_VISIBLE_STRING:
+ if (p->value)
+ {
+ len2 = -1;
+ len = asn1_get_length_der (p->value, p->value_len, &len2);
+ fprintf (out, " value:");
+ if (len > 0)
+ for (k = 0; k < len; k++)
+ fprintf (out, "%c", (p->value)[k + len2]);
+ }
+ break;
+ case ASN1_ETYPE_BMP_STRING:
+ case ASN1_ETYPE_OCTET_STRING:
+ if (p->value)
+ {
+ len2 = -1;
+ len = asn1_get_length_der (p->value, p->value_len, &len2);
+ fprintf (out, " value:");
+ if (len > 0)
+ for (k = 0; k < len; k++)
+ fprintf (out, "%02x", (unsigned) (p->value)[k + len2]);
+ }
+ break;
+ case ASN1_ETYPE_OBJECT_ID:
+ if (p->value)
+ fprintf (out, " value:%s", p->value);
+ break;
+ case ASN1_ETYPE_ANY:
+ if (p->value)
+ {
+ len3 = -1;
+ len2 = asn1_get_length_der (p->value, p->value_len, &len3);
+ fprintf (out, " value:");
+ if (len2 > 0)
+ for (k = 0; k < len2; k++)
+ fprintf (out, "%02x", (unsigned) (p->value)[k + len3]);
+ }
+ break;
+ case ASN1_ETYPE_SET:
+ case ASN1_ETYPE_SET_OF:
+ case ASN1_ETYPE_CHOICE:
+ case ASN1_ETYPE_DEFINITIONS:
+ case ASN1_ETYPE_SEQUENCE_OF:
+ case ASN1_ETYPE_SEQUENCE:
+ case ASN1_ETYPE_NULL:
+ break;
+ default:
+ break;
+ }
+ }
+
+ if (mode == ASN1_PRINT_ALL)
+ {
+ if (p->type & 0x1FFFFF00)
+ {
+ fprintf (out, " attr:");
+ if (p->type & CONST_UNIVERSAL)
+ fprintf (out, "UNIVERSAL,");
+ if (p->type & CONST_PRIVATE)
+ fprintf (out, "PRIVATE,");
+ if (p->type & CONST_APPLICATION)
+ fprintf (out, "APPLICATION,");
+ if (p->type & CONST_EXPLICIT)
+ fprintf (out, "EXPLICIT,");
+ if (p->type & CONST_IMPLICIT)
+ fprintf (out, "IMPLICIT,");
+ if (p->type & CONST_TAG)
+ fprintf (out, "TAG,");
+ if (p->type & CONST_DEFAULT)
+ fprintf (out, "DEFAULT,");
+ if (p->type & CONST_TRUE)
+ fprintf (out, "TRUE,");
+ if (p->type & CONST_FALSE)
+ fprintf (out, "FALSE,");
+ if (p->type & CONST_LIST)
+ fprintf (out, "LIST,");
+ if (p->type & CONST_MIN_MAX)
+ fprintf (out, "MIN_MAX,");
+ if (p->type & CONST_OPTION)
+ fprintf (out, "OPTION,");
+ if (p->type & CONST_1_PARAM)
+ fprintf (out, "1_PARAM,");
+ if (p->type & CONST_SIZE)
+ fprintf (out, "SIZE,");
+ if (p->type & CONST_DEFINED_BY)
+ fprintf (out, "DEF_BY,");
+ if (p->type & CONST_GENERALIZED)
+ fprintf (out, "GENERALIZED,");
+ if (p->type & CONST_UTC)
+ fprintf (out, "UTC,");
+ if (p->type & CONST_SET)
+ fprintf (out, "SET,");
+ if (p->type & CONST_NOT_USED)
+ fprintf (out, "NOT_USED,");
+ if (p->type & CONST_ASSIGN)
+ fprintf (out, "ASSIGNMENT,");
+ }
+ }
+
+ if (mode == ASN1_PRINT_ALL)
+ {
+ fprintf (out, "\n");
+ }
+ else
+ {
+ switch (type_field (p->type))
+ {
+ case ASN1_ETYPE_CONSTANT:
+ case ASN1_ETYPE_TAG:
+ case ASN1_ETYPE_SIZE:
+ break;
+ default:
+ fprintf (out, "\n");
+ }
+ }
+
+ if (p->down)
+ {
+ p = p->down;
+ indent += 2;
+ }
+ else if (p == root)
+ {
+ p = NULL;
+ break;
+ }
+ else if (p->right)
+ p = p->right;
+ else
+ {
+ while (1)
+ {
+ p = _asn1_find_up (p);
+ if (p == root)
+ {
+ p = NULL;
+ break;
+ }
+ indent -= 2;
+ if (p->right)
+ {
+ p = p->right;
+ break;
+ }
+ }
+ }
+ }
+}
+
+
+
+/**
+ * asn1_number_of_elements:
+ * @element: pointer to the root of an ASN1 structure.
+ * @name: the name of a sub-structure of ROOT.
+ * @num: pointer to an integer where the result will be stored
+ *
+ * Counts the number of elements of a sub-structure called NAME with
+ * names equal to "?1","?2", ...
+ *
+ * Returns: %ASN1_SUCCESS if successful, %ASN1_ELEMENT_NOT_FOUND if
+ * @name is not known, %ASN1_GENERIC_ERROR if pointer @num is %NULL.
+ **/
+int
+asn1_number_of_elements (asn1_node_const element, const char *name, int *num)
+{
+ asn1_node_const node, p;
+
+ if (num == NULL)
+ return ASN1_GENERIC_ERROR;
+
+ *num = 0;
+
+ node = asn1_find_node (element, name);
+ if (node == NULL)
+ return ASN1_ELEMENT_NOT_FOUND;
+
+ p = node->down;
+
+ while (p)
+ {
+ if (p->name[0] == '?')
+ (*num)++;
+ p = p->right;
+ }
+
+ return ASN1_SUCCESS;
+}
+
+
+/**
+ * asn1_find_structure_from_oid:
+ * @definitions: ASN1 definitions
+ * @oidValue: value of the OID to search (e.g. "1.2.3.4").
+ *
+ * Search the structure that is defined just after an OID definition.
+ *
+ * Returns: %NULL when @oidValue not found, otherwise the pointer to a
+ * constant string that contains the element name defined just after
+ * the OID.
+ **/
+const char *
+asn1_find_structure_from_oid (asn1_node_const definitions,
+ const char *oidValue)
+{
+ char name[2 * ASN1_MAX_NAME_SIZE + 2];
+ char value[ASN1_MAX_NAME_SIZE];
+ asn1_node p;
+ int len;
+ int result;
+ const char *definitionsName;
+
+ if ((definitions == NULL) || (oidValue == NULL))
+ return NULL; /* ASN1_ELEMENT_NOT_FOUND; */
+
+ definitionsName = definitions->name;
+
+ /* search the OBJECT_ID into definitions */
+ p = definitions->down;
+ while (p)
+ {
+ if ((type_field (p->type) == ASN1_ETYPE_OBJECT_ID) &&
+ (p->type & CONST_ASSIGN))
+ {
+ snprintf (name, sizeof (name), "%s.%s", definitionsName, p->name);
+
+ len = ASN1_MAX_NAME_SIZE;
+ result = asn1_read_value (definitions, name, value, &len);
+
+ if ((result == ASN1_SUCCESS) && (!strcmp (oidValue, value)))
+ {
+ p = p->right;
+ if (p == NULL) /* reach the end of ASN1 definitions */
+ return NULL; /* ASN1_ELEMENT_NOT_FOUND; */
+
+ return p->name;
+ }
+ }
+ p = p->right;
+ }
+
+ return NULL; /* ASN1_ELEMENT_NOT_FOUND; */
+}
+
+/**
+ * asn1_copy_node:
+ * @dst: Destination asn1 node.
+ * @dst_name: Field name in destination node.
+ * @src: Source asn1 node.
+ * @src_name: Field name in source node.
+ *
+ * Create a deep copy of a asn1_node variable. That
+ * function requires @dst to be expanded using asn1_create_element().
+ *
+ * Returns: Return %ASN1_SUCCESS on success.
+ **/
+int
+asn1_copy_node (asn1_node dst, const char *dst_name,
+ asn1_node_const src, const char *src_name)
+{
+ int result;
+ asn1_node dst_node;
+ void *data = NULL;
+ int size = 0;
+
+ result = asn1_der_coding (src, src_name, NULL, &size, NULL);
+ if (result != ASN1_MEM_ERROR)
+ return result;
+
+ data = malloc (size);
+ if (data == NULL)
+ return ASN1_MEM_ERROR;
+
+ result = asn1_der_coding (src, src_name, data, &size, NULL);
+ if (result != ASN1_SUCCESS)
+ {
+ free (data);
+ return result;
+ }
+
+ dst_node = asn1_find_node (dst, dst_name);
+ if (dst_node == NULL)
+ {
+ free (data);
+ return ASN1_ELEMENT_NOT_FOUND;
+ }
+
+ result = asn1_der_decoding (&dst_node, data, size, NULL);
+
+ free (data);
+
+ return result;
+}
+
+/**
+ * asn1_dup_node:
+ * @src: Source asn1 node.
+ * @src_name: Field name in source node.
+ *
+ * Create a deep copy of a asn1_node variable. This function
+ * will return an exact copy of the provided structure.
+ *
+ * Returns: Return %NULL on failure.
+ **/
+asn1_node
+asn1_dup_node (asn1_node_const src, const char *src_name)
+{
+ return _asn1_copy_structure2 (src, src_name);
+}
diff --git a/grub-core/lib/libtasn1/lib/structure.h
b/grub-core/lib/libtasn1/lib/structure.h
new file mode 100644
index 000000000..b973ce963
--- /dev/null
+++ b/grub-core/lib/libtasn1/lib/structure.h
@@ -0,0 +1,46 @@
+/*
+ * Copyright (C) 2002-2022 Free Software Foundation, Inc.
+ *
+ * This file is part of LIBTASN1.
+ *
+ * The LIBTASN1 library is free software; you can redistribute it
+ * and/or modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
+ * 02110-1301, USA
+ */
+
+/*************************************************/
+/* File: structure.h */
+/* Description: list of exported object by */
+/* "structure.c" */
+/*************************************************/
+
+#ifndef _STRUCTURE_H
+# define _STRUCTURE_H
+
+# include "parser_aux.h" /* list_type */
+
+int _asn1_create_static_structure (asn1_node_const pointer,
+ char *output_file_name, char *vector_name);
+
+asn1_node _asn1_copy_structure3 (asn1_node_const source_node);
+
+asn1_node _asn1_add_single_node (unsigned int type);
+
+asn1_node _asn1_find_left (asn1_node_const node);
+
+int
+_asn1_delete_structure (list_type * e_list, asn1_node * structure,
+ unsigned int flags);
+
+#endif
diff --git a/grub-core/lib/libtasn1/libtasn1.h
b/grub-core/lib/libtasn1/libtasn1.h
new file mode 100644
index 000000000..51cc7879f
--- /dev/null
+++ b/grub-core/lib/libtasn1/libtasn1.h
@@ -0,0 +1,643 @@
+/*
+ * Copyright (C) 2002-2022 Free Software Foundation, Inc.
+ *
+ * This file is part of LIBTASN1.
+ *
+ * LIBTASN1 is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU Lesser General Public License as
+ * published by the Free Software Foundation; either version 2.1 of
+ * the License, or (at your option) any later version.
+ *
+ * LIBTASN1 is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with LIBTASN1; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
+ * 02110-1301, USA
+ *
+ */
+
+/**
+ * SECTION:libtasn1
+ * @short_description: GNU ASN.1 library
+ *
+ * The Libtasn1 library provides Abstract Syntax Notation One (ASN.1, as
+ * specified by the X.680 ITU-T recommendation) parsing and structures
+ * management, and Distinguished Encoding Rules (DER, as per X.690)
+ * encoding and decoding functions.
+ */
+
+
+#ifndef LIBTASN1_H
+# define LIBTASN1_H
+
+# ifndef ASN1_API
+# if defined ASN1_BUILDING && defined HAVE_VISIBILITY && HAVE_VISIBILITY
+# define ASN1_API __attribute__((__visibility__("default")))
+# elif defined ASN1_BUILDING && defined _MSC_VER && ! defined ASN1_STATIC
+# define ASN1_API __declspec(dllexport)
+# elif defined _MSC_VER && ! defined ASN1_STATIC
+# define ASN1_API __declspec(dllimport)
+# else
+# define ASN1_API
+# endif
+# endif
+
+# ifdef __GNUC__
+# define __LIBTASN1_CONST__ __attribute__((const))
+# define __LIBTASN1_PURE__ __attribute__((pure))
+# else
+# define __LIBTASN1_CONST__
+# define __LIBTASN1_PURE__
+# endif
+
+# include <sys/types.h>
+# include <time.h>
+# include <stdio.h> /* for FILE* */
+
+# ifdef __cplusplus
+extern "C"
+{
+# endif
+
+/**
+ * ASN1_VERSION:
+ *
+ * Version of the library as a string.
+ */
+# define ASN1_VERSION "4.19.0"
+
+/**
+ * ASN1_VERSION_MAJOR:
+ *
+ * Major version number of the library.
+ */
+# define ASN1_VERSION_MAJOR 4
+
+/**
+ * ASN1_VERSION_MINOR:
+ *
+ * Minor version number of the library.
+ */
+# define ASN1_VERSION_MINOR 19
+
+/**
+ * ASN1_VERSION_PATCH:
+ *
+ * Patch version number of the library.
+ */
+# define ASN1_VERSION_PATCH 0
+
+/**
+ * ASN1_VERSION_NUMBER:
+ *
+ * Version number of the library as a number.
+ */
+# define ASN1_VERSION_NUMBER 0x041300
+
+
+# if defined __GNUC__ && !defined ASN1_INTERNAL_BUILD
+# define _ASN1_GCC_VERSION (__GNUC__ * 10000 + __GNUC_MINOR__ * 100 +
__GNUC_PATCHLEVEL__)
+# if _ASN1_GCC_VERSION >= 30100
+# define _ASN1_GCC_ATTR_DEPRECATED __attribute__ ((__deprecated__))
+# endif
+# endif
+
+# ifndef _ASN1_GCC_ATTR_DEPRECATED
+# define _ASN1_GCC_ATTR_DEPRECATED
+# endif
+
+/*****************************************/
+/* Errors returned by libtasn1 functions */
+/*****************************************/
+# define ASN1_SUCCESS 0
+# define ASN1_FILE_NOT_FOUND 1
+# define ASN1_ELEMENT_NOT_FOUND 2
+# define ASN1_IDENTIFIER_NOT_FOUND 3
+# define ASN1_DER_ERROR 4
+# define ASN1_VALUE_NOT_FOUND 5
+# define ASN1_GENERIC_ERROR 6
+# define ASN1_VALUE_NOT_VALID 7
+# define ASN1_TAG_ERROR 8
+# define ASN1_TAG_IMPLICIT 9
+# define ASN1_ERROR_TYPE_ANY 10
+# define ASN1_SYNTAX_ERROR 11
+# define ASN1_MEM_ERROR 12
+# define ASN1_MEM_ALLOC_ERROR 13
+# define ASN1_DER_OVERFLOW 14
+# define ASN1_NAME_TOO_LONG 15
+# define ASN1_ARRAY_ERROR 16
+# define ASN1_ELEMENT_NOT_EMPTY 17
+# define ASN1_TIME_ENCODING_ERROR 18
+# define ASN1_RECURSION 19
+
+/*************************************/
+/* Constants used in asn1_visit_tree */
+/*************************************/
+# define ASN1_PRINT_NAME 1
+# define ASN1_PRINT_NAME_TYPE 2
+# define ASN1_PRINT_NAME_TYPE_VALUE 3
+# define ASN1_PRINT_ALL 4
+
+/*****************************************/
+/* Constants returned by asn1_read_tag */
+/*****************************************/
+# define ASN1_CLASS_UNIVERSAL 0x00 /* old: 1 */
+# define ASN1_CLASS_APPLICATION 0x40 /* old: 2 */
+# define ASN1_CLASS_CONTEXT_SPECIFIC 0x80 /* old: 3 */
+# define ASN1_CLASS_PRIVATE 0xC0 /* old: 4 */
+# define ASN1_CLASS_STRUCTURED 0x20
+
+/*****************************************/
+/* Constants returned by asn1_read_tag */
+/*****************************************/
+# define ASN1_TAG_BOOLEAN 0x01
+# define ASN1_TAG_INTEGER 0x02
+# define ASN1_TAG_SEQUENCE 0x10
+# define ASN1_TAG_SET 0x11
+# define ASN1_TAG_OCTET_STRING 0x04
+# define ASN1_TAG_BIT_STRING 0x03
+# define ASN1_TAG_UTCTime 0x17
+# define ASN1_TAG_GENERALIZEDTime 0x18
+# define ASN1_TAG_OBJECT_ID 0x06
+# define ASN1_TAG_ENUMERATED 0x0A
+# define ASN1_TAG_NULL 0x05
+# define ASN1_TAG_GENERALSTRING 0x1B
+# define ASN1_TAG_NUMERIC_STRING 0x12
+# define ASN1_TAG_IA5_STRING 0x16
+# define ASN1_TAG_TELETEX_STRING 0x14
+# define ASN1_TAG_PRINTABLE_STRING 0x13
+# define ASN1_TAG_UNIVERSAL_STRING 0x1C
+# define ASN1_TAG_BMP_STRING 0x1E
+# define ASN1_TAG_UTF8_STRING 0x0C
+# define ASN1_TAG_VISIBLE_STRING 0x1A
+
+/**
+ * asn1_node:
+ *
+ * Structure definition used for the node of the tree
+ * that represents an ASN.1 DEFINITION.
+ */
+ typedef struct asn1_node_st asn1_node_st;
+
+ typedef asn1_node_st *asn1_node;
+ typedef const asn1_node_st *asn1_node_const;
+
+/**
+ * ASN1_MAX_NAME_SIZE:
+ *
+ * Maximum number of characters of a name
+ * inside a file with ASN1 definitions.
+ */
+# define ASN1_MAX_NAME_SIZE 64
+
+
+/**
+ * asn1_static_node:
+ * @name: Node name
+ * @type: Node typ
+ * @value: Node value
+ *
+ * For the on-disk format of ASN.1 trees, created by asn1_parser2array().
+ */
+ typedef struct asn1_static_node_st
+ {
+ const char *name; /* Node name */
+ unsigned int type; /* Node type */
+ const void *value; /* Node value */
+ } asn1_static_node;
+
+/* List of constants for field type of asn1_static_node */
+# define ASN1_ETYPE_INVALID 0
+# define ASN1_ETYPE_CONSTANT 1
+# define ASN1_ETYPE_IDENTIFIER 2
+# define ASN1_ETYPE_INTEGER 3
+# define ASN1_ETYPE_BOOLEAN 4
+# define ASN1_ETYPE_SEQUENCE 5
+# define ASN1_ETYPE_BIT_STRING 6
+# define ASN1_ETYPE_OCTET_STRING 7
+# define ASN1_ETYPE_TAG 8
+# define ASN1_ETYPE_DEFAULT 9
+# define ASN1_ETYPE_SIZE 10
+# define ASN1_ETYPE_SEQUENCE_OF 11
+# define ASN1_ETYPE_OBJECT_ID 12
+# define ASN1_ETYPE_ANY 13
+# define ASN1_ETYPE_SET 14
+# define ASN1_ETYPE_SET_OF 15
+# define ASN1_ETYPE_DEFINITIONS 16
+# define ASN1_ETYPE_CHOICE 18
+# define ASN1_ETYPE_IMPORTS 19
+# define ASN1_ETYPE_NULL 20
+# define ASN1_ETYPE_ENUMERATED 21
+# define ASN1_ETYPE_GENERALSTRING 27
+# define ASN1_ETYPE_NUMERIC_STRING 28
+# define ASN1_ETYPE_IA5_STRING 29
+# define ASN1_ETYPE_TELETEX_STRING 30
+# define ASN1_ETYPE_PRINTABLE_STRING 31
+# define ASN1_ETYPE_UNIVERSAL_STRING 32
+# define ASN1_ETYPE_BMP_STRING 33
+# define ASN1_ETYPE_UTF8_STRING 34
+# define ASN1_ETYPE_VISIBLE_STRING 35
+# define ASN1_ETYPE_UTC_TIME 36
+# define ASN1_ETYPE_GENERALIZED_TIME 37
+
+/**
+ * ASN1_DELETE_FLAG_ZEROIZE:
+ *
+ * Used by: asn1_delete_structure2()
+ *
+ * Zeroize values prior to deinitialization.
+ */
+# define ASN1_DELETE_FLAG_ZEROIZE 1
+
+/**
+ * ASN1_DECODE_FLAG_ALLOW_PADDING:
+ *
+ * Used by: asn1_der_decoding2()
+ *
+ * This flag would allow arbitrary data past the DER data.
+ */
+# define ASN1_DECODE_FLAG_ALLOW_PADDING 1
+/**
+ * ASN1_DECODE_FLAG_STRICT_DER:
+ *
+ * Used by: asn1_der_decoding2()
+ *
+ * This flag would ensure that no BER decoding takes place.
+ */
+# define ASN1_DECODE_FLAG_STRICT_DER (1<<1)
+/**
+ * ASN1_DECODE_FLAG_ALLOW_INCORRECT_TIME:
+ *
+ * Used by: asn1_der_decoding2()
+ *
+ * This flag will tolerate Time encoding errors when in strict DER.
+ */
+# define ASN1_DECODE_FLAG_ALLOW_INCORRECT_TIME (1<<2)
+
+ /* *INDENT-OFF* */
+
+/**
+ * asn1_data_node_st:
+ * @name: Node name
+ * @value: Node value
+ * @value_len: Node value size
+ * @type: Node value type (ASN1_ETYPE_*)
+ *
+ * Data node inside a #asn1_node structure.
+ */
+ struct asn1_data_node_st
+ {
+ const char *name; /* Node name */
+ const void *value; /* Node value */
+ unsigned int value_len; /* Node value size */
+ unsigned int type; /* Node value type (ASN1_ETYPE_*) */
+};
+
+ /* *INDENT-ON* */
+
+ typedef struct asn1_data_node_st asn1_data_node_st;
+
+/***********************************/
+/* Fixed constants */
+/***********************************/
+
+/**
+ * ASN1_MAX_ERROR_DESCRIPTION_SIZE:
+ *
+ * Maximum number of characters
+ * of a description message
+ * (null character included).
+ */
+# define ASN1_MAX_ERROR_DESCRIPTION_SIZE 128
+
+/***********************************/
+/* Functions definitions */
+/***********************************/
+
+ extern ASN1_API int
+ asn1_parser2tree (const char *file,
+ asn1_node * definitions, char *error_desc);
+
+ extern ASN1_API int
+ asn1_parser2array (const char *inputFileName,
+ const char *outputFileName,
+ const char *vectorName, char *error_desc);
+
+ extern ASN1_API int
+ asn1_array2tree (const asn1_static_node * array,
+ asn1_node * definitions, char *errorDescription);
+
+ extern ASN1_API void
+ asn1_print_structure (FILE * out, asn1_node_const structure,
+ const char *name, int mode);
+
+ extern ASN1_API int
+ asn1_create_element (asn1_node_const definitions,
+ const char *source_name, asn1_node * element);
+
+ extern ASN1_API int asn1_delete_structure (asn1_node * structure);
+
+ extern ASN1_API int asn1_delete_structure2 (asn1_node * structure,
+ unsigned int flags);
+
+ extern ASN1_API int
+ asn1_delete_element (asn1_node structure, const char *element_name);
+
+ extern ASN1_API int
+ asn1_write_value (asn1_node node_root, const char *name,
+ const void *ivalue, int len);
+
+ extern ASN1_API int
+ asn1_read_value (asn1_node_const root, const char *name,
+ void *ivalue, int *len);
+
+ extern ASN1_API int
+ asn1_read_value_type (asn1_node_const root, const char *name,
+ void *ivalue, int *len, unsigned int *etype);
+
+ extern ASN1_API int
+ asn1_read_node_value (asn1_node_const node, asn1_data_node_st * data);
+
+ extern ASN1_API int
+ asn1_number_of_elements (asn1_node_const element, const char *name,
+ int *num);
+
+ extern ASN1_API int
+ asn1_der_coding (asn1_node_const element, const char *name,
+ void *ider, int *len, char *ErrorDescription);
+
+ extern ASN1_API int
+ asn1_der_decoding2 (asn1_node * element, const void *ider,
+ int *max_ider_len, unsigned int flags,
+ char *errorDescription);
+
+ extern ASN1_API int
+ asn1_der_decoding (asn1_node * element, const void *ider,
+ int ider_len, char *errorDescription);
+
+/* Do not use. Use asn1_der_decoding() instead. */
+ extern ASN1_API int
+ asn1_der_decoding_element (asn1_node * structure,
+ const char *elementName,
+ const void *ider, int len,
+ char *errorDescription)
+ _ASN1_GCC_ATTR_DEPRECATED;
+
+ extern ASN1_API int
+ asn1_der_decoding_startEnd (asn1_node element,
+ const void *ider, int ider_len,
+ const char *name_element,
+ int *start, int *end);
+
+ extern ASN1_API int
+ asn1_expand_any_defined_by (asn1_node_const definitions,
+ asn1_node * element);
+
+ extern ASN1_API int
+ asn1_expand_octet_string (asn1_node_const definitions,
+ asn1_node * element,
+ const char *octetName, const char *objectName);
+
+ extern ASN1_API int
+ asn1_read_tag (asn1_node_const root, const char *name,
+ int *tagValue, int *classValue);
+
+ extern ASN1_API const char *asn1_find_structure_from_oid (asn1_node_const
+ definitions,
+ const char
+ *oidValue);
+
+ __LIBTASN1_PURE__
+ extern ASN1_API const char *asn1_check_version (const char *req_version);
+
+ __LIBTASN1_PURE__ extern ASN1_API const char *asn1_strerror (int error);
+
+ extern ASN1_API void asn1_perror (int error);
+
+# define ASN1_MAX_TAG_SIZE 4
+# define ASN1_MAX_LENGTH_SIZE 9
+# define ASN1_MAX_TL_SIZE (ASN1_MAX_TAG_SIZE+ASN1_MAX_LENGTH_SIZE)
+ extern ASN1_API long
+ asn1_get_length_der (const unsigned char *der, int der_len, int *len);
+
+ extern ASN1_API long
+ asn1_get_length_ber (const unsigned char *ber, int ber_len, int *len);
+
+ extern ASN1_API void
+ asn1_length_der (unsigned long int len, unsigned char *der, int *der_len);
+
+/* Other utility functions. */
+
+ extern ASN1_API
+ int asn1_decode_simple_der (unsigned int etype, const unsigned char *der,
+ unsigned int _der_len,
+ const unsigned char **str,
+ unsigned int *str_len);
+
+ extern ASN1_API
+ int asn1_decode_simple_ber (unsigned int etype, const unsigned char *der,
+ unsigned int _der_len,
+ unsigned char **str,
+ unsigned int *str_len, unsigned int *ber_len);
+
+ extern ASN1_API int
+ asn1_encode_simple_der (unsigned int etype, const unsigned char *str,
+ unsigned int str_len, unsigned char *tl,
+ unsigned int *tl_len);
+
+ extern ASN1_API asn1_node
+ asn1_find_node (asn1_node_const pointer, const char *name);
+
+ extern ASN1_API int
+ asn1_copy_node (asn1_node dst, const char *dst_name,
+ asn1_node_const src, const char *src_name);
+ extern ASN1_API asn1_node
+ asn1_dup_node (asn1_node_const src, const char *src_name);
+
+/* Internal and low-level DER utility functions. */
+
+ extern ASN1_API int
+ asn1_get_tag_der (const unsigned char *der, int der_len,
+ unsigned char *cls, int *len, unsigned long *tag);
+
+ extern ASN1_API void
+ asn1_octet_der (const unsigned char *str, int str_len,
+ unsigned char *der, int *der_len);
+
+ extern ASN1_API int
+ asn1_get_octet_der (const unsigned char *der, int der_len,
+ int *ret_len, unsigned char *str,
+ int str_size, int *str_len);
+
+ extern ASN1_API void asn1_bit_der (const unsigned char *str, int bit_len,
+ unsigned char *der, int *der_len);
+
+ extern ASN1_API int
+ asn1_get_bit_der (const unsigned char *der, int der_len,
+ int *ret_len, unsigned char *str,
+ int str_size, int *bit_len);
+
+ extern ASN1_API int
+ asn1_get_object_id_der (const unsigned char *der,
+ int der_len, int *ret_len,
+ char *str, int str_size);
+
+ extern ASN1_API int
+ asn1_object_id_der (const char *str, unsigned char *der, int *der_len,
+ unsigned flags);
+
+/* Compatibility types */
+
+/**
+ * asn1_retCode:
+ *
+ * Type formerly returned by libtasn1 functions.
+ *
+ * Deprecated: 3.0: Use int instead.
+ */
+ typedef int asn1_retCode _ASN1_GCC_ATTR_DEPRECATED;
+
+/**
+ * node_asn_struct:
+ *
+ * Compat #define.
+ *
+ * Deprecated: 3.0: Use #asn1_node instead.
+ */
+# ifndef ASN1_DISABLE_DEPRECATED
+# if _ASN1_GCC_VERSION >= 30100
+# define node_asn_struct _Pragma ("GCC warning \"'node_asn_struct' macro is
deprecated, use 'asn1_node' instead.\"") asn1_node_st
+# else
+# define node_asn_struct asn1_node_st
+# endif
+# endif /* !ASN1_DISABLE_DEPRECATED */
+
+/**
+ * node_asn:
+ *
+ * Compat #define.
+ *
+ * Deprecated: 3.0: Use #asn1_node instead.
+ */
+# ifndef ASN1_DISABLE_DEPRECATED
+# if _ASN1_GCC_VERSION >= 30100
+# define node_asn _Pragma ("GCC warning \"'node_asn' macro is deprecated,
use 'asn1_node' instead.\"") asn1_node_st
+# else
+# define node_asn asn1_node_st
+# endif
+# endif /* !ASN1_DISABLE_DEPRECATED */
+
+/**
+ * ASN1_TYPE:
+ *
+ * Compat #define.
+ *
+ * Deprecated: 3.0: Use #asn1_node instead.
+ */
+# ifndef ASN1_DISABLE_DEPRECATED
+# if _ASN1_GCC_VERSION >= 30100
+# define ASN1_TYPE _Pragma ("GCC warning \"'ASN1_TYPE' macro is deprecated,
use 'asn1_node' instead.\"") asn1_node
+# else
+# define ASN1_TYPE asn1_node
+# endif
+# endif /* !ASN1_DISABLE_DEPRECATED */
+
+/**
+ * ASN1_TYPE_EMPTY:
+ *
+ * Compat #define.
+ *
+ * Deprecated: 3.0: Use NULL instead.
+ */
+# ifndef ASN1_DISABLE_DEPRECATED
+# if _ASN1_GCC_VERSION >= 30100
+# define ASN1_TYPE_EMPTY _Pragma ("GCC warning \"'ASN1_TYPE_EMPTY' macro is
deprecated, use 'NULL' instead.\"") NULL
+# else
+# define ASN1_TYPE_EMPTY NULL
+# endif
+# endif /* !ASN1_DISABLE_DEPRECATED */
+
+/**
+ * static_struct_asn:
+ *
+ * Compat #define.
+ *
+ * Deprecated: 3.0: Use #asn1_static_node instead.
+ */
+# ifndef ASN1_DISABLE_DEPRECATED
+# if _ASN1_GCC_VERSION >= 30100
+# define static_struct_asn _Pragma ("GCC warning \"'static_struct_asn' macro
is deprecated, use 'asn1_static_node_st' instead.\"") asn1_static_node_st
+# else
+# define static_struct_asn asn1_static_node_st
+# endif
+# endif /* !ASN1_DISABLE_DEPRECATED */
+
+/**
+ * ASN1_ARRAY_TYPE:
+ *
+ * Compat #define.
+ *
+ * Deprecated: 3.0: Use #asn1_static_node instead.
+ */
+# ifndef ASN1_DISABLE_DEPRECATED
+# if _ASN1_GCC_VERSION >= 30100
+# define ASN1_ARRAY_TYPE _Pragma ("GCC warning \"'ASN1_ARRAY_TYPE' macro is
deprecated, use 'asn1_static_node' instead.\"") asn1_static_node
+# else
+# define ASN1_ARRAY_TYPE asn1_static_node
+# endif
+# endif /* !ASN1_DISABLE_DEPRECATED */
+
+/**
+ * asn1_static_node_t:
+ *
+ * Compat #define.
+ *
+ * Deprecated: 3.0: Use #asn1_static_node instead.
+ */
+# ifndef ASN1_DISABLE_DEPRECATED
+# if _ASN1_GCC_VERSION >= 30100
+# define asn1_static_node_t _Pragma ("GCC warning \"'asn1_static_node_t'
macro is deprecated, use 'asn1_static_node' instead.\"") asn1_static_node
+# else
+# define asn1_static_node_t asn1_static_node
+# endif
+# endif /* !ASN1_DISABLE_DEPRECATED */
+
+/**
+ * node_data_struct:
+ *
+ * Compat #define.
+ *
+ * Deprecated: 3.0: Use #asn1_data_node_st instead.
+ */
+# ifndef ASN1_DISABLE_DEPRECATED
+# if _ASN1_GCC_VERSION >= 30100
+# define node_data_struct _Pragma ("GCC warning \"'node_data_struct' macro
is deprecated, use 'asn1_data_node_st' instead.\"") asn1_data_node_st
+# else
+# define node_data_struct asn1_data_node_st
+# endif
+# endif /* !ASN1_DISABLE_DEPRECATED */
+
+/**
+ * ASN1_DATA_NODE:
+ *
+ * Compat #define.
+ *
+ * Deprecated: 3.0: Use #asn1_data_node_st instead.
+ */
+# ifndef ASN1_DISABLE_DEPRECATED
+# if _ASN1_GCC_VERSION >= 30100
+# define ASN1_DATA_NODE _Pragma ("GCC warning \"'asn1_static_node_t' macro
is deprecated, use 'asn1_static_node' instead.\"") asn1_data_node_st
+# else
+# define ASN1_DATA_NODE asn1_data_node_st
+# endif
+# endif /* !ASN1_DISABLE_DEPRECATED */
+
+# ifdef __cplusplus
+}
+# endif
+
+#endif /* LIBTASN1_H */
diff --git a/grub-core/lib/libtasn1/tests/CVE-2018-1000654-1_asn1_tab.h
b/grub-core/lib/libtasn1/tests/CVE-2018-1000654-1_asn1_tab.h
new file mode 100644
index 000000000..e7930136c
--- /dev/null
+++ b/grub-core/lib/libtasn1/tests/CVE-2018-1000654-1_asn1_tab.h
@@ -0,0 +1,32 @@
+#if HAVE_CONFIG_H
+# include "config.h"
+#endif
+
+#include <libtasn1.h>
+
+const asn1_static_node CVE_2018_1000654_1_asn1_tab[] = {
+ { "TEST_TREE", 536875024, NULL },
+ { NULL, 1610612748, NULL },
+ { "iso", 1073741825, "1"},
+ { "identified-organization", 1073741825, "3"},
+ { "dod", 1073741825, "6"},
+ { "internet", 1073741825, "1"},
+ { "security", 1073741825, "5"},
+ { "mechanisms", 1073741825, "5"},
+ { "pkix", 1073741825, "7"},
+ { "id-mod", 1073741825, "0"},
+ { "id-pkix1-implicit-88", 1, "2"},
+ { "id-xnyTest", 1879048204, NULL },
+ { NULL, 1073741825, "id-ix"},
+ { NULL, 1073741825, "29"},
+ { NULL, 1, "1"},
+ { "id-ix", 1880096780, "OBJECR"},
+ { NULL, 1073741825, "id-ix"},
+ { NULL, 1073741825, "29"},
+ { NULL, 1, "2"},
+ { "id-xnyTest", 805306380, NULL },
+ { NULL, 1073741825, "id-ix"},
+ { NULL, 1073741825, "29"},
+ { NULL, 1, "1"},
+ { NULL, 0, NULL }
+};
diff --git a/grub-core/lib/libtasn1/tests/CVE-2018-1000654-2_asn1_tab.h
b/grub-core/lib/libtasn1/tests/CVE-2018-1000654-2_asn1_tab.h
new file mode 100644
index 000000000..e8170f5d5
--- /dev/null
+++ b/grub-core/lib/libtasn1/tests/CVE-2018-1000654-2_asn1_tab.h
@@ -0,0 +1,36 @@
+#if HAVE_CONFIG_H
+# include "config.h"
+#endif
+
+#include <libtasn1.h>
+
+const asn1_static_node CVE_2018_1000654_2_asn1_tab[] = {
+ { "TEST_TREE", 536875024, NULL },
+ { NULL, 1610612748, NULL },
+ { "iso", 1073741825, "1"},
+ { "identified-organization", 1073741825, "3"},
+ { "dod", 1073741825, "6"},
+ { "internet", 1073741825, "1"},
+ { "security", 1073741825, "5"},
+ { "mechanisms", 1073741825, "5"},
+ { "pkix", 1073741825, "7"},
+ { "id-mod", 1073741825, "0"},
+ { "id-pkix1-implicit-88", 1, "2"},
+ { "id-oneTest", 1879048204, NULL },
+ { NULL, 1073741825, "id-two"},
+ { NULL, 1073741825, "9"},
+ { NULL, 1, "1"},
+ { "id-two", 1879048204, NULL },
+ { NULL, 1073741825, "id-three"},
+ { NULL, 1073741825, "2"},
+ { NULL, 1, "2"},
+ { "id-three", 1879048204, NULL },
+ { NULL, 1073741825, "id-four"},
+ { NULL, 1073741825, "3"},
+ { NULL, 1, "3"},
+ { "id-four", 805306380, NULL },
+ { NULL, 1073741825, "id-two"},
+ { NULL, 1073741825, "3"},
+ { NULL, 1, "3"},
+ { NULL, 0, NULL }
+};
diff --git a/grub-core/lib/libtasn1/tests/CVE-2018-1000654.c
b/grub-core/lib/libtasn1/tests/CVE-2018-1000654.c
new file mode 100644
index 000000000..0c22b7012
--- /dev/null
+++ b/grub-core/lib/libtasn1/tests/CVE-2018-1000654.c
@@ -0,0 +1,72 @@
+/*
+ * Copyright (C) 2002-2022 Free Software Foundation, Inc.
+ *
+ * This file is part of LIBTASN1.
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.
+ *
+ */
+
+/****************************************************************/
+/* Description: reproducer for CVE-2018-1000654 */
+/****************************************************************/
+
+#include <stdio.h>
+#include <string.h>
+#include <stdlib.h>
+#include "CVE-2018-1000654-1_asn1_tab.h"
+#include "CVE-2018-1000654-2_asn1_tab.h"
+
+int
+main (int argc, char *argv[])
+{
+ int result, verbose = 0;
+ asn1_node definitions = NULL;
+ char errorDescription[ASN1_MAX_ERROR_DESCRIPTION_SIZE];
+
+ if (argc > 1)
+ verbose = 1;
+
+ printf ("Test 1\n");
+
+ result =
+ asn1_array2tree (CVE_2018_1000654_1_asn1_tab, &definitions,
+ errorDescription);
+ if (result != ASN1_RECURSION)
+ {
+ asn1_perror (result);
+ printf ("ErrorDescription = %s\n\n", errorDescription);
+ exit (1);
+ }
+
+ asn1_delete_structure (&definitions);
+
+ printf ("Test 2\n");
+
+ result =
+ asn1_array2tree (CVE_2018_1000654_2_asn1_tab, &definitions,
+ errorDescription);
+ if (result != ASN1_RECURSION)
+ {
+ asn1_perror (result);
+ printf ("ErrorDescription = %s\n\n", errorDescription);
+ exit (1);
+ }
+
+ asn1_delete_structure (&definitions);
+
+ if (verbose)
+ printf ("Success\n");
+ exit (0);
+}
diff --git a/grub-core/lib/libtasn1/tests/Test_overflow.c
b/grub-core/lib/libtasn1/tests/Test_overflow.c
new file mode 100644
index 000000000..c61dea4bb
--- /dev/null
+++ b/grub-core/lib/libtasn1/tests/Test_overflow.c
@@ -0,0 +1,168 @@
+/*
+ * Copyright (C) 2012-2022 Free Software Foundation, Inc.
+ *
+ * This file is part of LIBTASN1.
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.
+ *
+ */
+
+/* Written by Simon Josefsson */
+
+#include <stdio.h>
+#include <string.h>
+#include <stdlib.h>
+#include <limits.h>
+
+#include "libtasn1.h"
+
+int
+main (int argc, char **argv)
+{
+ /* Test that values larger than long are rejected. This has worked
+ fine with all versions of libtasn1. */
+ int verbose = 0;
+
+ if (argc > 1)
+ verbose = 1;
+
+ {
+ unsigned char der[] = "\xFF\xFF\xFF\xFF\xFF\xFF\xFF\xFF\xFF\xFF";
+ long l;
+ int len;
+
+ l = asn1_get_length_der (der, sizeof der, &len);
+
+ if (l == -2L)
+ {
+ if (verbose)
+ puts ("OK: asn1_get_length_der bignum");
+ }
+ else
+ {
+ printf ("ERROR: asn1_get_length_der bignum (l %ld len %d)\n", l, len);
+ return 1;
+ }
+ }
+
+ /* Test that values larger than int but smaller than long are
+ rejected. This limitation was introduced with libtasn1 2.12. */
+ if (LONG_MAX > INT_MAX)
+ {
+ unsigned long num = ((long) UINT_MAX) << 2;
+ unsigned char der[20];
+ int der_len;
+ long l;
+ int len;
+
+ asn1_length_der (num, der, &der_len);
+
+ l = asn1_get_length_der (der, der_len, &len);
+
+ if (l == -2L)
+ {
+ if (verbose)
+ puts ("OK: asn1_get_length_der intnum");
+ }
+ else
+ {
+ printf ("ERROR: asn1_get_length_der intnum (l %ld len %d)\n", l,
+ len);
+ return 1;
+ }
+ }
+
+ /* Test that values larger than would fit in the input string are
+ rejected. This problem was fixed in libtasn1 2.12. */
+ {
+ unsigned long num = 64;
+ unsigned char der[20];
+ int der_len;
+ long l;
+ int len;
+
+ asn1_length_der (num, der, &der_len);
+
+ der_len = sizeof (der);
+ l = asn1_get_length_der (der, der_len, &len);
+
+ if (l == -4L)
+ {
+ if (verbose)
+ puts ("OK: asn1_get_length_der overflow-small");
+ }
+ else
+ {
+ printf ("ERROR: asn1_get_length_der overflow-small (l %ld len %d)\n",
+ l, len);
+ return 1;
+ }
+ }
+
+ /* Test that values larger than would fit in the input string are
+ rejected. This problem was fixed in libtasn1 2.12. */
+ {
+ unsigned long num = 1073741824;
+ unsigned char der[20];
+ int der_len;
+ long l;
+ int len;
+
+ asn1_length_der (num, der, &der_len);
+
+ der_len = sizeof (der);
+ l = asn1_get_length_der (der, der_len, &len);
+
+ if (l == -4L)
+ {
+ if (verbose)
+ puts ("OK: asn1_get_length_der overflow-large1");
+ }
+ else
+ {
+ printf ("ERROR: asn1_get_length_der overflow-large1 (l %ld len %d)\n",
+ l, len);
+ return 1;
+ }
+ }
+
+ /* Test that values larger than would fit in the input string are
+ rejected. This problem was fixed in libtasn1 2.12. */
+ {
+ unsigned long num = 2147483649;
+ unsigned char der[20];
+ int der_len;
+ long l;
+ int len;
+
+ asn1_length_der (num, der, &der_len);
+
+ der_len = sizeof (der);
+ l = asn1_get_length_der (der, der_len, &len);
+
+ if (l == -2L)
+ {
+ if (verbose)
+ puts ("OK: asn1_get_length_der overflow-large2");
+ }
+ else
+ {
+ printf ("ERROR: asn1_get_length_der overflow-large2 (l %ld len %d)\n",
+ l, len);
+ return 1;
+ }
+ }
+
+ return 0;
+}
diff --git a/grub-core/lib/libtasn1/tests/Test_simple.c
b/grub-core/lib/libtasn1/tests/Test_simple.c
new file mode 100644
index 000000000..6cd07e069
--- /dev/null
+++ b/grub-core/lib/libtasn1/tests/Test_simple.c
@@ -0,0 +1,226 @@
+/*
+ * Copyright (C) 2011-2022 Free Software Foundation, Inc.
+ *
+ * This file is part of LIBTASN1.
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.
+ *
+ * Written by Simon Josefsson
+ *
+ */
+
+#include <stdio.h>
+#include <string.h>
+#include <stdlib.h>
+
+#include "libtasn1.h"
+
+struct tv
+{
+ int bitlen;
+ const char *bitstr;
+ int derlen;
+ const char *der;
+};
+
+static const struct tv tv[] = {
+ {0, "", 2, "\x01\x00"},
+ {1, "\x00", 3, "\x02\x07\x00"},
+ {2, "\x00", 3, "\x02\x06\x00"},
+ {3, "\x00", 3, "\x02\x05\x00"},
+ {4, "\x00", 3, "\x02\x04\x00"},
+ {5, "\x00", 3, "\x02\x03\x00"},
+ {6, "\x00", 3, "\x02\x02\x00"},
+ {7, "\x00", 3, "\x02\x01\x00"},
+ {8, "\x00\x00", 3, "\x02\x00\x00"},
+ {9, "\x00\x00", 4, "\x03\x07\x00\x00"},
+ {10, "\x00\x00", 4, "\x03\x06\x00\x00"},
+ {11, "\x00\x00", 4, "\x03\x05\x00\x00"},
+ {12, "\x00\x00", 4, "\x03\x04\x00\x00"},
+ {13, "\x00\x00", 4, "\x03\x03\x00\x00"},
+ {14, "\x00\x00", 4, "\x03\x02\x00\x00"},
+ {15, "\x00\x00", 4, "\x03\x01\x00\x00"},
+ {16, "\x00\x00", 4, "\x03\x00\x00\x00"},
+ {17, "\x00\x00\x00", 5, "\x04\x07\x00\x00\x00"},
+ {18, "\x00\x00\x00", 5, "\x04\x06\x00\x00\x00"},
+ {19, "\x00\x00\x00", 5, "\x04\x05\x00\x00\x00"},
+ {1, "\xFF", 3, "\x02\x07\x80"},
+ {2, "\xFF", 3, "\x02\x06\xc0"},
+ {3, "\xFF", 3, "\x02\x05\xe0"},
+ {4, "\xFF", 3, "\x02\x04\xf0"},
+ {5, "\xFF", 3, "\x02\x03\xf8"},
+ {6, "\xFF", 3, "\x02\x02\xfc"},
+ {7, "\xFF", 3, "\x02\x01\xfe"},
+ {8, "\xFF\xFF", 3, "\x02\x00\xff"},
+ {9, "\xFF\xFF", 4, "\x03\x07\xff\x80"},
+ {10, "\xFF\xFF", 4, "\x03\x06\xff\xc0"},
+ {11, "\xFF\xFF", 4, "\x03\x05\xff\xe0"},
+ {12, "\xFF\xFF", 4, "\x03\x04\xff\xf0"},
+ {13, "\xFF\xFF", 4, "\x03\x03\xff\xf8"},
+ {14, "\xFF\xFF", 4, "\x03\x02\xff\xfc"},
+ {15, "\xFF\xFF", 4, "\x03\x01\xff\xfe"},
+ {16, "\xFF\xFF", 4, "\x03\x00\xff\xff"},
+ {17, "\xFF\xFF\xFF", 5, "\x04\x07\xff\xff\x80"},
+ {18, "\xFF\xFF\xFF", 5, "\x04\x06\xff\xff\xc0"},
+ {19, "\xFF\xFF\xFF", 5, "\x04\x05\xff\xff\xe0"},
+};
+
+int
+main (int argc, char *argv[])
+{
+ int result;
+ unsigned char der[100];
+ unsigned char str[100];
+ int der_len = sizeof (der);
+ int str_size = sizeof (str);
+ int ret_len, bit_len;
+ size_t i;
+
+ {
+ unsigned int etype = 38;
+ unsigned int my_str_len = 10;
+ unsigned char my_str[10];
+ unsigned int tl_len = 10;
+ unsigned char tl[10];
+
+ /* https://gitlab.com/gnutls/libtasn1/-/issues/32 */
+ result = asn1_encode_simple_der (etype, my_str, my_str_len, tl, &tl_len);
+ if (result != ASN1_VALUE_NOT_VALID)
+ {
+ fprintf (stderr, "asn1_encode_simple_der out of range etype\n");
+ return 1;
+ }
+ }
+
+ /* Dummy test */
+
+ asn1_bit_der (NULL, 0, der, &der_len);
+ result = asn1_get_bit_der (der, 0, &ret_len, str, str_size, &bit_len);
+ if (result != ASN1_GENERIC_ERROR)
+ {
+ fprintf (stderr, "asn1_get_bit_der zero\n");
+ return 1;
+ }
+
+ /* Encode short strings with increasing bit lengths */
+
+ for (i = 0; i < sizeof (tv) / sizeof (tv[0]); i++)
+ {
+ /* Encode */
+
+ asn1_bit_der ((const unsigned char *) tv[i].bitstr, tv[i].bitlen,
+ der, &der_len);
+
+#if 0
+ {
+ size_t j;
+ for (j = 0; j < der_len; j++)
+ printf ("\\x%02x", der[j]);
+ printf ("\n");
+ }
+#endif
+
+ if (der_len != tv[i].derlen || memcmp (der, tv[i].der, der_len) != 0)
+ {
+ fprintf (stderr, "asn1_bit_der iter %lu\n", (unsigned long) i);
+ return 1;
+ }
+
+ /* Decode it */
+
+ result = asn1_get_bit_der (der, der_len, &ret_len, str,
+ str_size, &bit_len);
+ if (result != ASN1_SUCCESS || ret_len != tv[i].derlen
+ || bit_len != tv[i].bitlen)
+ {
+ fprintf (stderr, "asn1_get_bit_der iter %lu, err: %d\n",
+ (unsigned long) i, result);
+ return 1;
+ }
+ }
+
+
+ /* Decode sample from "A Layman's Guide to a Subset of ASN.1, BER,
+ and DER" section 5.4 "BIT STRING": "The BER encoding of the BIT
+ STRING value "011011100101110111" can be any of the following,
+ among others, depending on the choice of padding bits, the form
+ of length octets [...]".
+ */
+
+ /* 03 04 06 6e 5d c0 DER encoding */
+
+ memcpy (der, "\x04\x06\x6e\x5d\xc0", 5);
+ der_len = 5;
+
+ result = asn1_get_bit_der (der, der_len, &ret_len, str, str_size, &bit_len);
+ if (result != ASN1_SUCCESS || ret_len != 5
+ || bit_len != 18 || memcmp (str, "\x6e\x5d\xc0", 3) != 0)
+ {
+ fprintf (stderr, "asn1_get_bit_der example\n");
+ return 1;
+ }
+
+ der_len = sizeof (der);
+ asn1_bit_der (str, bit_len, der, &der_len);
+ if (der_len != 5 || memcmp (der, "\x04\x06\x6e\x5d\xc0", 5) != 0)
+ {
+ fprintf (stderr, "asn1_bit_der example roundtrip\n");
+ return 1;
+ }
+
+ /* 03 04 06 6e 5d e0 padded with "100000" */
+
+ memcpy (der, "\x04\x06\x6e\x5d\xe0", 5);
+ der_len = 5;
+
+ result = asn1_get_bit_der (der, der_len, &ret_len, str, str_size, &bit_len);
+ if (result != ASN1_SUCCESS || ret_len != 5
+ || bit_len != 18 || memcmp (str, "\x6e\x5d\xe0", 3) != 0)
+ {
+ fprintf (stderr, "asn1_get_bit_der example padded\n");
+ return 1;
+ }
+
+ der_len = sizeof (der);
+ asn1_bit_der (str, bit_len, der, &der_len);
+ if (der_len != 5 || memcmp (der, "\x04\x06\x6e\x5d\xc0", 5) != 0)
+ {
+ fprintf (stderr, "asn1_bit_der example roundtrip\n");
+ return 1;
+ }
+
+ /* 03 81 04 06 6e 5d c0 long form of length octets */
+
+ memcpy (der, "\x81\x04\x06\x6e\x5d\xc0", 6);
+ der_len = 6;
+
+ result = asn1_get_bit_der (der, der_len, &ret_len, str, str_size, &bit_len);
+
+ if (result != ASN1_SUCCESS || ret_len != 6
+ || bit_len != 18 || memcmp (str, "\x6e\x5d\xc0", 3) != 0)
+ {
+ fprintf (stderr, "asn1_get_bit_der example long form\n");
+ return 1;
+ }
+
+ der_len = sizeof (der);
+ asn1_bit_der (str, bit_len, der, &der_len);
+ if (der_len != 5 || memcmp (der, "\x04\x06\x6e\x5d\xc0", 5) != 0)
+ {
+ fprintf (stderr, "asn1_bit_der example roundtrip\n");
+ return 1;
+ }
+
+ return 0;
+}
diff --git a/grub-core/lib/libtasn1/tests/Test_strings.c
b/grub-core/lib/libtasn1/tests/Test_strings.c
new file mode 100644
index 000000000..27f7215e1
--- /dev/null
+++ b/grub-core/lib/libtasn1/tests/Test_strings.c
@@ -0,0 +1,156 @@
+/*
+ * Copyright (C) 2012-2022 Free Software Foundation, Inc.
+ *
+ * This file is part of LIBTASN1.
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.
+ *
+ * Written by Simon Josefsson
+ *
+ */
+
+#include <stdio.h>
+#include <string.h>
+#include <stdlib.h>
+
+#include "libtasn1.h"
+
+struct tv
+{
+ unsigned int etype;
+ unsigned int str_len;
+ const void *str;
+ unsigned int der_len;
+ const void *der;
+};
+
+static const struct tv tv[] = {
+ {ASN1_ETYPE_IA5_STRING, 20,
+
"\x63\x73\x63\x61\x40\x70\x61\x73\x73\x70\x6f\x72\x74\x2e\x67\x6f\x76\x2e\x67\x72",
+ 22,
+
"\x16\x14\x63\x73\x63\x61\x40\x70\x61\x73\x73\x70\x6f\x72\x74\x2e\x67\x6f\x76\x2e\x67\x72"},
+ {ASN1_ETYPE_PRINTABLE_STRING, 5, "\x4e\x69\x6b\x6f\x73",
+ 7, "\x13\x05\x4e\x69\x6b\x6f\x73"},
+ {ASN1_ETYPE_UTF8_STRING, 12, "Αττική",
+ 14, "\x0c\x0c\xce\x91\xcf\x84\xcf\x84\xce\xb9\xce\xba\xce\xae"},
+ {ASN1_ETYPE_TELETEX_STRING, 15,
+ "\x53\x69\x6d\x6f\x6e\x20\x4a\x6f\x73\x65\x66\x73\x73\x6f\x6e",
+ 17,
+ "\x14\x0f\x53\x69\x6d\x6f\x6e\x20\x4a\x6f\x73\x65\x66\x73\x73\x6f\x6e"},
+ {ASN1_ETYPE_OCTET_STRING, 36,
+
"\x30\x22\x80\x0F\x32\x30\x31\x31\x30\x38\x32\x31\x30\x38\x30\x30\x30\x36\x5A\x81\x0F\x32\x30\x31\x31\x30\x38\x32\x33\x32\x30\x35\x39\x35\x39\x5A",
+ 38,
+
"\x04\x24\x30\x22\x80\x0F\x32\x30\x31\x31\x30\x38\x32\x31\x30\x38\x30\x30\x30\x36\x5A\x81\x0F\x32\x30\x31\x31\x30\x38\x32\x33\x32\x30\x35\x39\x35\x39\x5A"}
+};
+
+#define SSTR(x) sizeof(x)-1,x
+static const struct tv ber[] = {
+ {ASN1_ETYPE_OCTET_STRING,
+ SSTR ("\xa0\xa0"),
+ SSTR ("\x24\x80\x04\x82\x00\x02\xa0\xa0\x00\x00")},
+ {ASN1_ETYPE_OCTET_STRING,
+ SSTR ("\xa0\xa0\xb0\xb0\xb0"),
+ SSTR
+ ("\x24\x80\x04\x82\x00\x02\xa0\xa0\x04\x82\x00\x03\xb0\xb0\xb0\x00\x00")},
+ {ASN1_ETYPE_OCTET_STRING,
+ SSTR ("\xa0\xa0\xb0\xb0\xb0\xa1\xa1"),
+ SSTR
+
("\x24\x80\x04\x82\x00\x02\xa0\xa0\x04\x82\x00\x03\xb0\xb0\xb0\x24\x80\x04\x82\x00\x02\xa1\xa1\x00\x00\x00\x00")},
+ {ASN1_ETYPE_OCTET_STRING,
+ SSTR ("\xa0\xa0\xb0\xb0\xb0\xa1\xa1\xc1"),
+ SSTR
+
("\x24\x80\x04\x82\x00\x02\xa0\xa0\x04\x82\x00\x03\xb0\xb0\xb0\x24\x80\x04\x82\x00\x02\xa1\xa1\x04\x82\x00\x01\xc1\x00\x00\x00\x00")},
+};
+
+int
+main (int argc, char *argv[])
+{
+ int ret;
+ unsigned char tl[ASN1_MAX_TL_SIZE];
+ unsigned int tl_len, der_len, str_len;
+ const unsigned char *str;
+ unsigned char *b;
+ unsigned int i;
+
+ /* Dummy test */
+
+ for (i = 0; i < sizeof (tv) / sizeof (tv[0]); i++)
+ {
+ /* Encode */
+ tl_len = sizeof (tl);
+ ret = asn1_encode_simple_der (tv[i].etype, tv[i].str, tv[i].str_len,
+ tl, &tl_len);
+ if (ret != ASN1_SUCCESS)
+ {
+ fprintf (stderr, "Encoding error in %u: %s\n", i,
+ asn1_strerror (ret));
+ return 1;
+ }
+ der_len = tl_len + tv[i].str_len;
+
+ if (der_len != tv[i].der_len || memcmp (tl, tv[i].der, tl_len) != 0)
+ {
+ fprintf (stderr,
+ "DER encoding differs in %u! (size: %u, expected: %u)\n",
+ i, der_len, tv[i].der_len);
+ return 1;
+ }
+
+ /* decoding */
+ ret =
+ asn1_decode_simple_der (tv[i].etype, tv[i].der, tv[i].der_len, &str,
+ &str_len);
+ if (ret != ASN1_SUCCESS)
+ {
+ fprintf (stderr, "Decoding error in %u: %s\n", i,
+ asn1_strerror (ret));
+ return 1;
+ }
+
+ if (str_len != tv[i].str_len || memcmp (str, tv[i].str, str_len) != 0)
+ {
+ fprintf (stderr,
+ "DER decoded data differ in %u! (size: %u, expected: %u)\n",
+ i, der_len, tv[i].str_len);
+ return 1;
+ }
+ }
+
+ /* BER decoding */
+ for (i = 0; i < sizeof (ber) / sizeof (ber[0]); i++)
+ {
+ /* decoding */
+ ret =
+ asn1_decode_simple_ber (ber[i].etype, ber[i].der, ber[i].der_len, &b,
+ &str_len, NULL);
+ if (ret != ASN1_SUCCESS)
+ {
+ fprintf (stderr, "BER decoding error in %u: %s\n", i,
+ asn1_strerror (ret));
+ return 1;
+ }
+
+ if (str_len != ber[i].str_len || memcmp (b, ber[i].str, str_len) != 0)
+ {
+ fprintf (stderr,
+ "BER decoded data differ in %u! (size: %u, expected: %u)\n",
+ i, str_len, ber[i].str_len);
+ return 1;
+ }
+ free (b);
+ }
+
+
+ return 0;
+}
diff --git a/grub-core/lib/libtasn1/tests/object-id-decoding.c
b/grub-core/lib/libtasn1/tests/object-id-decoding.c
new file mode 100644
index 000000000..06a6c52a2
--- /dev/null
+++ b/grub-core/lib/libtasn1/tests/object-id-decoding.c
@@ -0,0 +1,121 @@
+/*
+ * Copyright (C) 2016 Red Hat, Inc.
+ *
+ * This file is part of LIBTASN1.
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.
+ *
+ */
+
+#include <stdio.h>
+#include <string.h>
+#include <stdlib.h>
+
+#include "libtasn1.h"
+
+struct tv
+{
+ int der_len;
+ const unsigned char *der;
+ const char *oid;
+ int expected_error;
+};
+
+static const struct tv tv[] = {
+ {.der_len = 5,
+ .der = (void *) "\x06\x03\x80\x37\x03",
+ .oid = "2.999.3",
+ .expected_error = ASN1_DER_ERROR /* leading 0x80 */
+ },
+ {.der_len = 12,
+ .der = (void *) "\x06\x0a\x2b\x06\x01\x80\x01\x92\x08\x09\x05\x01",
+ .oid = "1.3.6.1.4.1.2312.9.5.1",
+ .expected_error = ASN1_DER_ERROR /* leading 0x80 */
+ },
+ {.der_len = 6,
+ .der = (void *) "\x06\x04\x01\x02\x03\x04",
+ .oid = "0.1.2.3.4",
+ .expected_error = ASN1_SUCCESS},
+ {.der_len = 5,
+ .der = (void *) "\x06\x03\x51\x02\x03",
+ .oid = "2.1.2.3",
+ .expected_error = ASN1_SUCCESS},
+ {.der_len = 5,
+ .der = (void *) "\x06\x03\x88\x37\x03",
+ .oid = "2.999.3",
+ .expected_error = ASN1_SUCCESS},
+ {.der_len = 12,
+ .der = (void *) "\x06\x0a\x2b\x06\x01\x04\x01\x92\x08\x09\x05\x01",
+ .oid = "1.3.6.1.4.1.2312.9.5.1",
+ .expected_error = ASN1_SUCCESS},
+ {.der_len = 19,
+ .der =
+ (void *)
+
"\x06\x11\xfa\x80\x00\x00\x00\x0e\x01\x0e\xfa\x80\x00\x00\x00\x0e\x63\x6f\x6d",
+ .oid = "2.1998768.0.0.14.1.14.1998848.0.0.14.99.111.109",
+ .expected_error = ASN1_SUCCESS},
+ {.der_len = 19,
+ .der =
+ (void *)
+
"\x06\x11\x2b\x06\x01\x04\x01\x92\x08\x09\x02\xaa\xda\xbe\xbe\xfa\x72\x01\x07",
+ .oid = "1.3.6.1.4.1.2312.9.2.1467399257458.1.7",
+ .expected_error = ASN1_SUCCESS},
+};
+
+int
+main (int argc, char *argv[])
+{
+ char str[128];
+ int ret, ret_len;
+ size_t i;
+
+ for (i = 0; i < sizeof (tv) / sizeof (tv[0]); i++)
+ {
+ /* decode */
+ ret =
+ asn1_get_object_id_der (tv[i].der + 1,
+ tv[i].der_len - 1, &ret_len, str,
+ sizeof (str));
+ if (ret != tv[i].expected_error)
+ {
+ fprintf (stderr,
+ "%d: asn1_get_object_id_der iter %lu: got '%s' expected
%d\n",
+ __LINE__, (unsigned long) i, asn1_strerror (ret),
+ tv[i].expected_error);
+ return 1;
+ }
+
+ if (tv[i].expected_error != ASN1_SUCCESS)
+ continue;
+
+ if (ret_len != tv[i].der_len - 1)
+ {
+ fprintf (stderr,
+ "%d: iter %lu: error in DER, length returned is %d, had
%d\n",
+ __LINE__, (unsigned long) i, ret_len, tv[i].der_len - 1);
+ return 1;
+ }
+
+ if (strcmp (tv[i].oid, str) != 0)
+ {
+ fprintf (stderr,
+ "%d: strcmp iter %lu: got invalid OID: %s, expected: %s\n",
+ __LINE__, (unsigned long) i, str, tv[i].oid);
+ return 1;
+ }
+
+ }
+
+ return 0;
+}
diff --git a/grub-core/lib/libtasn1/tests/object-id-encoding.c
b/grub-core/lib/libtasn1/tests/object-id-encoding.c
new file mode 100644
index 000000000..1a3396986
--- /dev/null
+++ b/grub-core/lib/libtasn1/tests/object-id-encoding.c
@@ -0,0 +1,133 @@
+/*
+ * Copyright (C) 2019 Nikos Mavrogiannopoulos
+ *
+ * This file is part of LIBTASN1.
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.
+ *
+ */
+
+#include <stdio.h>
+#include <string.h>
+#include <stdlib.h>
+
+#include "libtasn1.h"
+
+struct tv
+{
+ int der_len;
+ const unsigned char *der;
+ const char *oid;
+ int expected_error;
+};
+
+static const struct tv tv[] = {
+ {.der_len = 0,
+ .der = (void *) "",
+ .oid = "5.999.3",
+ .expected_error = ASN1_VALUE_NOT_VALID /* cannot start with 5 */
+ },
+ {.der_len = 0,
+ .der = (void *) "",
+ .oid = "0.48.9",
+ .expected_error = ASN1_VALUE_NOT_VALID /* second field cannot be 48 */
+ },
+ {.der_len = 0,
+ .der = (void *) "",
+ .oid = "1.40.9",
+ .expected_error = ASN1_VALUE_NOT_VALID /* second field cannot be 40 */
+ },
+ {.der_len = 4,
+ .der = (void *) "\x06\x02\x4f\x63",
+ .oid = "1.39.99",
+ .expected_error = ASN1_SUCCESS,
+ },
+ {.der_len = 6,
+ .der = (void *) "\x06\x04\x01\x02\x03\x04",
+ .oid = "0.1.2.3.4",
+ .expected_error = ASN1_SUCCESS},
+ {.der_len = 5,
+ .der = (void *) "\x06\x03\x51\x02\x03",
+ .oid = "2.1.2.3",
+ .expected_error = ASN1_SUCCESS},
+ {.der_len = 5,
+ .der = (void *) "\x06\x03\x88\x37\x03",
+ .oid = "2.999.3",
+ .expected_error = ASN1_SUCCESS},
+ {.der_len = 12,
+ .der = (void *) "\x06\x0a\x2b\x06\x01\x04\x01\x92\x08\x09\x05\x01",
+ .oid = "1.3.6.1.4.1.2312.9.5.1",
+ .expected_error = ASN1_SUCCESS},
+ {.der_len = 19,
+ .der =
+ (void *)
+
"\x06\x11\xfa\x80\x00\x00\x00\x0e\x01\x0e\xfa\x80\x00\x00\x00\x0e\x63\x6f\x6d",
+ .oid = "2.1998768.0.0.14.1.14.1998848.0.0.14.99.111.109",
+ .expected_error = ASN1_SUCCESS},
+ {.der_len = 19,
+ .der =
+ (void *)
+
"\x06\x11\x2b\x06\x01\x04\x01\x92\x08\x09\x02\xaa\xda\xbe\xbe\xfa\x72\x01\x07",
+ .oid = "1.3.6.1.4.1.2312.9.2.1467399257458.1.7",
+ .expected_error = ASN1_SUCCESS},
+};
+
+int
+main (int argc, char *argv[])
+{
+ unsigned char der[128];
+ int ret, der_len, i, j;
+
+ for (i = 0; i < (int) (sizeof (tv) / sizeof (tv[0])); i++)
+ {
+ der_len = sizeof (der);
+ ret = asn1_object_id_der (tv[i].oid, der, &der_len, 0);
+ if (ret != ASN1_SUCCESS)
+ {
+ if (ret == tv[i].expected_error)
+ continue;
+ fprintf (stderr,
+ "%d: iter %lu, encoding of OID failed: %s\n",
+ __LINE__, (unsigned long) i, asn1_strerror (ret));
+ return 1;
+ }
+ else if (ret != tv[i].expected_error)
+ {
+ fprintf (stderr,
+ "%d: iter %lu, encoding of OID %s succeeded when expecting
failure\n",
+ __LINE__, (unsigned long) i, tv[i].oid);
+ return 1;
+ }
+
+ if (der_len != tv[i].der_len || memcmp (der, tv[i].der, der_len) != 0)
+ {
+ fprintf (stderr,
+ "%d: iter %lu, re-encoding of OID %s resulted to different
string (%d vs %d bytes)\n",
+ __LINE__, (unsigned long) i, tv[i].oid, der_len,
+ tv[i].der_len);
+ fprintf (stderr, "\nGot:\t\t");
+ for (j = 0; j < der_len; j++)
+ fprintf (stderr, "%.2x", der[j]);
+
+ fprintf (stderr, "\nExpected:\t");
+ for (j = 0; j < tv[i].der_len; j++)
+ fprintf (stderr, "%.2x", tv[i].der[j]);
+ fprintf (stderr, "\n");
+
+ return 1;
+ }
+ }
+
+ return 0;
+}
diff --git a/grub-core/lib/libtasn1/tests/octet-string.c
b/grub-core/lib/libtasn1/tests/octet-string.c
new file mode 100644
index 000000000..69eb18a62
--- /dev/null
+++ b/grub-core/lib/libtasn1/tests/octet-string.c
@@ -0,0 +1,230 @@
+/*
+ * Copyright (C) 2011-2022 Free Software Foundation, Inc.
+ *
+ * This file is part of LIBTASN1.
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.
+ *
+ * Written by Simon Josefsson and Nikos Mavrogiannopoulos
+ *
+ */
+
+#include <stdio.h>
+#include <string.h>
+#include <stdlib.h>
+
+#include "libtasn1.h"
+
+struct tv
+{
+ const char *name;
+ int der_len;
+ const unsigned char *der_str;
+ int len;
+ const unsigned char *string;
+ int expected_error;
+ int ber;
+};
+
+static const struct tv tv[] = {
+ {.name = "primitive octet strings",
+ .der_len = 10,
+ .der_str = (void *) "\x04\x08\x01\x23\x45\x67\x89\xab\xcd\xef",
+ .len = 8,
+ .string = (void *) "\x01\x23\x45\x67\x89\xab\xcd\xef",
+ .ber = 0},
+ {.der_len = 22,
+ .der_str =
+ (void *)
+
"\x04\x14\x13\x00\xd9\xa8\x47\xf7\xf2\x1c\xf4\xb0\xec\x5f\xc1\x73\xe5\x1b\x25\xc2\x62\x27",
+ .len = 20,
+ .string =
+ (void *)
+
"\x13\x00\xD9\xA8\x47\xF7\xF2\x1C\xF4\xB0\xEC\x5F\xC1\x73\xE5\x1B\x25\xC2\x62\x27"},
+
+ {.name = "long type of length",
+ .der_len = 23,
+ .der_str =
+ (void *)
+
"\x04\x81\x14\x13\x00\xd9\xa8\x47\xf7\xf2\x1c\xf4\xb0\xec\x5f\xc1\x73\xe5\x1b\x25\xc2\x62\x27",
+ .len = 20,
+ .string =
+ (void *)
+
"\x13\x00\xD9\xA8\x47\xF7\xF2\x1C\xF4\xB0\xEC\x5F\xC1\x73\xE5\x1B\x25\xC2\x62\x27",
+ .ber = 1},
+ {.der_len = 11,
+ .der_str = (void *) "\x04\x81\x08\x01\x23\x45\x67\x89\xab\xcd\xef",
+ .len = 8,
+ .string = (void *) "\x01\x23\x45\x67\x89\xab\xcd\xef",
+ .ber = 1},
+
+ {.name = "constructed - indefinite",
+ .der_len = 11,
+ .der_str = (void *) "\x24\x80\x04\x05\x01\x02\x03\x04\x05\x00\x00",
+ .len = 5,
+ .string = (void *) "\x01\x02\x03\x04\x05",
+ .ber = 1,
+ },
+
+ {.name = "constructed - definite - concat",
+ .der_len = 12,
+ .der_str = (void *) "\x24\x0a\x04\x04\x0a\x0b\x0c\x0d\x04\x02\x0e\x0f",
+ .len = 6,
+ .string = (void *) "\x0a\x0b\x0c\x0d\x0e\x0f",
+ .ber = 1,
+ },
+ {.name = "constructed - definite - recursive",
+ .der_len = 15,
+ .der_str =
+ (void *) "\x24\x0d\x04\x04\x0a\x0b\x0c\x0d\x24\x05\x04\x00\x04\x01\x0f",
+ .len = 5,
+ .string = (void *) "\x0a\x0b\x0c\x0d\x0f",
+ .ber = 1,
+ },
+ {.name = "constructed - definite - single",
+ .der_len = 7,
+ .der_str = (void *) "\x24\x05\x04\x03\x01\x02\x03",
+ .len = 3,
+ .string = (void *) "\x01\x02\x03",
+ .ber = 1,
+ },
+
+ /* a large amount of recursive indefinite encoding */
+ {.name = "a large amount of recursive indefinite encoding",
+ .der_len = 29325,
+ .der_str =
+ (void *)
+
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+ .len = 0,
+ .ber = 1,
+ .expected_error = ASN1_DER_ERROR}
+};
+
+int
+main (int argc, char *argv[])
+{
+ unsigned char str[100];
+ unsigned char der[100];
+ int der_len = sizeof (der);
+ int str_size = sizeof (str);
+ unsigned char *tmp = NULL;
+ int ret, ret_len, j;
+ size_t i;
+
+ for (i = 0; i < sizeof (tv) / sizeof (tv[0]); i++)
+ {
+ /* Decode */
+
+ if (tv[i].ber == 0)
+ {
+ str_size = sizeof (str);
+ ret =
+ asn1_get_octet_der (tv[i].der_str + 1,
+ tv[i].der_len - 1, &ret_len, str,
+ sizeof (str), &str_size);
+ if (ret != tv[i].expected_error)
+ {
+ fprintf (stderr,
+ "%d: asn1_get_octet_der: %s: got %d expected %d\n",
+ __LINE__, tv[i].name, ret, tv[i].expected_error);
+ return 1;
+ }
+ if (tv[i].expected_error)
+ continue;
+
+ if (ret_len != tv[i].der_len - 1)
+ {
+ fprintf (stderr,
+ "%d: error in DER, length returned is %d, had %d\n",
+ __LINE__, ret_len, tv[i].der_len - 1);
+ return 1;
+ }
+
+ if (str_size != tv[i].len
+ || memcmp (tv[i].string, str, tv[i].len) != 0)
+ {
+ fprintf (stderr,
+ "%d: memcmp: %s: got invalid decoding\n",
+ __LINE__, tv[i].name);
+
+ fprintf (stderr, "\nGot:\t\t");
+ for (j = 0; j < str_size; j++)
+ fprintf (stderr, "%.2x", str[j]);
+
+ fprintf (stderr, "\nExpected:\t");
+ for (j = 0; j < tv[i].len; j++)
+ fprintf (stderr, "%.2x", tv[i].string[j]);
+ fprintf (stderr, "\n");
+ return 1;
+ }
+
+ /* Encode */
+ der_len = sizeof (der);
+ asn1_octet_der (str, str_size, der, &der_len);
+
+ if (der_len != tv[i].der_len - 1
+ || memcmp (tv[i].der_str + 1, der, tv[i].der_len - 1) != 0)
+ {
+ fprintf (stderr,
+ "encoding: %s: got invalid encoding\n", tv[i].name);
+ return 1;
+ }
+ }
+
+ ret =
+ asn1_decode_simple_ber (ASN1_ETYPE_OCTET_STRING,
+ tv[i].der_str, tv[i].der_len,
+ &tmp, (unsigned int *) &str_size,
+ (unsigned int *) &der_len);
+ if (ret != tv[i].expected_error)
+ {
+ fprintf (stderr,
+ "%d: asn1_decode_simple_ber: %s: got %s expected %s\n",
+ __LINE__, tv[i].name, asn1_strerror (ret),
+ asn1_strerror (tv[i].expected_error));
+ return 1;
+ }
+ if (tv[i].expected_error)
+ continue;
+
+ if (der_len != tv[i].der_len)
+ {
+ fprintf (stderr,
+ "%d: error: %s: DER, length returned is %d, had %d\n",
+ __LINE__, tv[i].name, der_len, tv[i].der_len);
+ return 1;
+ }
+
+ if (str_size != tv[i].len || memcmp (tv[i].string, tmp, tv[i].len) != 0)
+ {
+ fprintf (stderr,
+ "%d: memcmp: %s: got invalid decoding\n",
+ __LINE__, tv[i].name);
+ fprintf (stderr, "\nGot:\t\t");
+ for (j = 0; j < str_size; j++)
+ fprintf (stderr, "%.2x", tmp[j]);
+
+ fprintf (stderr, "\nExpected:\t");
+ for (j = 0; j < tv[i].len; j++)
+ fprintf (stderr, "%.2x", tv[i].string[j]);
+ fprintf (stderr, "\n");
+ return 1;
+ }
+ free (tmp);
+ tmp = NULL;
+
+ }
+
+ return 0;
+}
diff --git a/grub-core/lib/libtasn1/tests/reproducers.c
b/grub-core/lib/libtasn1/tests/reproducers.c
new file mode 100644
index 000000000..a09d8b021
--- /dev/null
+++ b/grub-core/lib/libtasn1/tests/reproducers.c
@@ -0,0 +1,90 @@
+/*
+ * Copyright (C) 2019-2022 Free Software Foundation, Inc.
+ *
+ * This file is part of LIBTASN1.
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.
+ *
+ */
+
+/****************************************************************/
+/* Description: run reproducers for several fixed issues */
+/****************************************************************/
+
+#include <stdio.h>
+#include <string.h>
+#include <stdlib.h>
+
+#include <libtasn1.h>
+
+#include <int.h>
+
+/* produces endless loop (fixed by d4b624b2):
+ * The following translates into a single node with all pointers
+ * (right,left,down) set to NULL. */
+const asn1_static_node endless_asn1_tab[] = {
+ {"TEST_TREE", 536875024, NULL},
+ {NULL, 0, NULL}
+};
+
+/* produces memory leak (fixed by f16d1ff9):
+ * 152 bytes in 1 blocks are definitely lost in loss record 1 of 1
+ * at 0x4837B65: calloc (vg_replace_malloc.c:762)
+ * by 0x4851C0D: _asn1_add_static_node (parser_aux.c:71)
+ * by 0x4853AAC: asn1_array2tree (structure.c:200)
+ * by 0x10923B: main (single_node.c:67)
+ */
+const asn1_static_node tab[] = {
+ {"a", CONST_DOWN, ""},
+ {"b", 0, ""},
+ {"c", 0, ""},
+ {NULL, 0, NULL}
+};
+
+int
+main (int argc, char *argv[])
+{
+ int result, verbose = 0;
+ asn1_node definitions = NULL;
+ char errorDescription[ASN1_MAX_ERROR_DESCRIPTION_SIZE];
+
+ if (argc > 1)
+ verbose = 1;
+
+ result = asn1_array2tree (endless_asn1_tab, &definitions, errorDescription);
+ if (result != ASN1_SUCCESS)
+ {
+ asn1_perror (result);
+ printf ("ErrorDescription = %s\n\n", errorDescription);
+ exit (EXIT_FAILURE);
+ }
+
+ asn1_delete_structure (&definitions);
+
+ definitions = NULL;
+ result = asn1_array2tree (tab, &definitions, errorDescription);
+ if (result != ASN1_SUCCESS)
+ {
+ asn1_perror (result);
+ printf ("ErrorDescription = %s\n\n", errorDescription);
+ exit (EXIT_FAILURE);
+ }
+
+ asn1_delete_structure (&definitions);
+
+ if (verbose)
+ printf ("Success\n");
+
+ exit (EXIT_SUCCESS);
+}
--
2.43.0
- [PATCH v23 00/33] Automatic Disk Unlock with TPM2, Gary Lin, 2024/11/15
- [PATCH v23 01/33] posix_wrap: tweaks in preparation for libtasn1, Gary Lin, 2024/11/15
- [PATCH v23 02/33] libtasn1: import libtasn1-4.19.0,
Gary Lin <=
- [PATCH v23 04/33] libtasn1: replace strcat() with strcpy() in _asn1_str_cat(), Gary Lin, 2024/11/15
- [PATCH v23 06/33] libtasn1: adjust the header paths in libtasn1.h, Gary Lin, 2024/11/15
- [PATCH v23 03/33] libtasn1: disable code not needed in grub, Gary Lin, 2024/11/15
- [PATCH v23 05/33] libtasn1: replace strcat() with _asn1_str_cat(), Gary Lin, 2024/11/15
- [PATCH v23 07/33] libtasn1: Use grub_divmod64() for division, Gary Lin, 2024/11/15
- [PATCH v23 08/33] libtasn1: fix the potential buffer overrun, Gary Lin, 2024/11/15
- [PATCH v23 09/33] asn1_test: include asn1_test.h only, Gary Lin, 2024/11/15
- [PATCH v23 10/33] asn1_test: rename the main functions to the test names, Gary Lin, 2024/11/15
- [PATCH v23 11/33] asn1_test: return either 0 or 1 to reflect the results, Gary Lin, 2024/11/15
- [PATCH v23 12/33] asn1_test: remove 'verbose' and the unnecessary printf(), Gary Lin, 2024/11/15