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grub2/0163-libtasn1-disable-code-not-needed-in-grub.patch
Robbie Harwood ed1787d5fc emu: support newer kexec syscall 
Signed-off-by: Robbie Harwood <rharwood@redhat.com>
2023-02-06 22:43:11 +00:00

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From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Daniel Axtens <dja@axtens.net>
Date: Fri, 1 May 2020 17:12:23 +1000
Subject: [PATCH] libtasn1: disable code not needed in grub
We don't expect to be able to write ASN.1, only read it,
so we can disable some code.
Do that with #if 0/#endif, rather than deletion. This means
that the difference between upstream and grub is smaller,
which should make updating libtasn1 easier in the future.
With these exclusions we also avoid the need for minmax.h,
which is convenient because it means we don't have to
import it from gnulib.
Signed-off-by: Daniel Axtens <dja@axtens.net>
---
grub-core/lib/libtasn1/lib/coding.c | 12 ++++++++++--
grub-core/lib/libtasn1/lib/decoding.c | 2 ++
grub-core/lib/libtasn1/lib/element.c | 4 ++--
grub-core/lib/libtasn1/lib/errors.c | 3 +++
grub-core/lib/libtasn1/lib/structure.c | 10 ++++++----
include/grub/libtasn1.h | 15 +++++++++++++++
6 files changed, 38 insertions(+), 8 deletions(-)
diff --git a/grub-core/lib/libtasn1/lib/coding.c b/grub-core/lib/libtasn1/lib/coding.c
index 245ea64cf0..52def59836 100644
--- a/grub-core/lib/libtasn1/lib/coding.c
+++ b/grub-core/lib/libtasn1/lib/coding.c
@@ -30,11 +30,11 @@
#include "parser_aux.h"
#include <gstr.h>
#include "element.h"
-#include "minmax.h"
#include <structure.h>
#define MAX_TAG_LEN 16
+#if 0
/******************************************************/
/* Function : _asn1_error_description_value_not_found */
/* Description: creates the ErrorDescription string */
@@ -58,6 +58,7 @@ _asn1_error_description_value_not_found (asn1_node node,
Estrcat (ErrorDescription, "' not found");
}
+#endif
/**
* asn1_length_der:
@@ -244,6 +245,7 @@ asn1_encode_simple_der (unsigned int etype, const unsigned char *str,
return ASN1_SUCCESS;
}
+#if 0
/******************************************************/
/* Function : _asn1_time_der */
/* Description: creates the DER coding for a TIME */
@@ -281,7 +283,7 @@ _asn1_time_der (unsigned char *str, int str_len, unsigned char *der,
return ASN1_SUCCESS;
}
-
+#endif
/*
void
@@ -520,6 +522,7 @@ asn1_bit_der (const unsigned char *str, int bit_len,
}
+#if 0
/******************************************************/
/* Function : _asn1_complete_explicit_tag */
/* Description: add the length coding to the EXPLICIT */
@@ -596,6 +599,7 @@ _asn1_complete_explicit_tag (asn1_node node, unsigned char *der,
return ASN1_SUCCESS;
}
+#endif
const tag_and_class_st _asn1_tags[] = {
[ASN1_ETYPE_GENERALSTRING] =
@@ -648,6 +652,8 @@ const tag_and_class_st _asn1_tags[] = {
unsigned int _asn1_tags_size = sizeof (_asn1_tags) / sizeof (_asn1_tags[0]);
+
+#if 0
/******************************************************/
/* Function : _asn1_insert_tag_der */
/* Description: creates the DER coding of tags of one */
@@ -1413,3 +1419,5 @@ error:
asn1_delete_structure (&node);
return err;
}
+
+#endif
\ No newline at end of file
diff --git a/grub-core/lib/libtasn1/lib/decoding.c b/grub-core/lib/libtasn1/lib/decoding.c
index ff04eb778c..42f9a92b5d 100644
--- a/grub-core/lib/libtasn1/lib/decoding.c
+++ b/grub-core/lib/libtasn1/lib/decoding.c
@@ -1613,6 +1613,7 @@ asn1_der_decoding (asn1_node * element, const void *ider, int ider_len,
return asn1_der_decoding2 (element, ider, &ider_len, 0, errorDescription);
}
+#if 0
/**
* asn1_der_decoding_element:
* @structure: pointer to an ASN1 structure
@@ -1643,6 +1644,7 @@ asn1_der_decoding_element (asn1_node * structure, const char *elementName,
{
return asn1_der_decoding(structure, ider, len, errorDescription);
}
+#endif
/**
* asn1_der_decoding_startEnd:
diff --git a/grub-core/lib/libtasn1/lib/element.c b/grub-core/lib/libtasn1/lib/element.c
index 997eb2725d..539008d8e9 100644
--- a/grub-core/lib/libtasn1/lib/element.c
+++ b/grub-core/lib/libtasn1/lib/element.c
@@ -191,7 +191,7 @@ _asn1_append_sequence_set (asn1_node node, struct node_tail_cache_st *pcache)
return ASN1_SUCCESS;
}
-
+#if 0
/**
* asn1_write_value:
* @node_root: pointer to a structure
@@ -645,7 +645,7 @@ asn1_write_value (asn1_node node_root, const char *name,
return ASN1_SUCCESS;
}
-
+#endif
#define PUT_VALUE( ptr, ptr_size, data, data_size) \
*len = data_size; \
diff --git a/grub-core/lib/libtasn1/lib/errors.c b/grub-core/lib/libtasn1/lib/errors.c
index cee74daf79..42785e8622 100644
--- a/grub-core/lib/libtasn1/lib/errors.c
+++ b/grub-core/lib/libtasn1/lib/errors.c
@@ -57,6 +57,8 @@ static const libtasn1_error_entry error_algorithms[] = {
{0, 0}
};
+
+#if 0
/**
* asn1_perror:
* @error: is an error returned by a libtasn1 function.
@@ -73,6 +75,7 @@ asn1_perror (int error)
const char *str = asn1_strerror (error);
fprintf (stderr, "LIBTASN1 ERROR: %s\n", str ? str : "(null)");
}
+#endif
/**
* asn1_strerror:
diff --git a/grub-core/lib/libtasn1/lib/structure.c b/grub-core/lib/libtasn1/lib/structure.c
index 8189c56a4c..fcfde01a39 100644
--- a/grub-core/lib/libtasn1/lib/structure.c
+++ b/grub-core/lib/libtasn1/lib/structure.c
@@ -76,7 +76,7 @@ _asn1_find_left (asn1_node_const node)
return node->left;
}
-
+#if 0
int
_asn1_create_static_structure (asn1_node_const pointer, char *output_file_name,
char *vector_name)
@@ -155,7 +155,7 @@ _asn1_create_static_structure (asn1_node_const pointer, char *output_file_name,
return ASN1_SUCCESS;
}
-
+#endif
/**
* asn1_array2tree:
@@ -718,7 +718,7 @@ asn1_create_element (asn1_node_const definitions, const char *source_name,
return res;
}
-
+#if 0
/**
* asn1_print_structure:
* @out: pointer to the output file (e.g. stdout).
@@ -1058,7 +1058,7 @@ asn1_print_structure (FILE * out, asn1_node_const structure, const char *name,
}
}
}
-
+#endif
/**
@@ -1153,6 +1153,7 @@ asn1_find_structure_from_oid (asn1_node_const definitions, const char *oidValue)
return NULL; /* ASN1_ELEMENT_NOT_FOUND; */
}
+#if 0
/**
* asn1_copy_node:
* @dst: Destination asn1 node.
@@ -1202,6 +1203,7 @@ asn1_copy_node (asn1_node dst, const char *dst_name,
return result;
}
+#endif
/**
* asn1_dup_node:
diff --git a/include/grub/libtasn1.h b/include/grub/libtasn1.h
index 6fd7a30dc3..785eda2ae3 100644
--- a/include/grub/libtasn1.h
+++ b/include/grub/libtasn1.h
@@ -319,6 +319,8 @@ typedef struct asn1_data_node_st asn1_data_node_st;
/* Functions definitions */
/***********************************/
+/* These functions are not used in grub and should not be referenced. */
+#if 0
extern ASN1_API int
asn1_parser2tree (const char *file,
asn1_node * definitions, char *error_desc);
@@ -327,14 +329,17 @@ extern ASN1_API int
asn1_parser2array (const char *inputFileName,
const char *outputFileName,
const char *vectorName, char *error_desc);
+#endif
extern ASN1_API int
asn1_array2tree (const asn1_static_node * array,
asn1_node * definitions, char *errorDescription);
+#if 0
extern ASN1_API void
asn1_print_structure (FILE * out, asn1_node_const structure,
const char *name, int mode);
+#endif
extern ASN1_API int
asn1_create_element (asn1_node_const definitions,
@@ -347,9 +352,11 @@ extern ASN1_API int asn1_delete_structure2 (asn1_node * structure, unsigned int
extern ASN1_API int
asn1_delete_element (asn1_node structure, const char *element_name);
+#if 0
extern ASN1_API int
asn1_write_value (asn1_node node_root, const char *name,
const void *ivalue, int len);
+#endif
extern ASN1_API int
asn1_read_value (asn1_node_const root, const char *name,
@@ -365,9 +372,11 @@ extern ASN1_API int
extern ASN1_API int
asn1_number_of_elements (asn1_node_const element, const char *name, int *num);
+#if 0
extern ASN1_API int
asn1_der_coding (asn1_node_const element, const char *name,
void *ider, int *len, char *ErrorDescription);
+#endif
extern ASN1_API int
asn1_der_decoding2 (asn1_node *element, const void *ider,
@@ -378,12 +387,14 @@ extern ASN1_API int
asn1_der_decoding (asn1_node * element, const void *ider,
int ider_len, char *errorDescription);
+#if 0
/* 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;
+#endif
extern ASN1_API int
asn1_der_decoding_startEnd (asn1_node element,
@@ -408,13 +419,17 @@ extern ASN1_API const char *asn1_find_structure_from_oid (asn1_node_const
const char
*oidValue);
+#if 0
__LIBTASN1_PURE__
extern ASN1_API const char *asn1_check_version (const char *req_version);
+#endif
__LIBTASN1_PURE__
extern ASN1_API const char *asn1_strerror (int error);
+#if 0
extern ASN1_API void asn1_perror (int error);
+#endif
#define ASN1_MAX_TAG_SIZE 4
#define ASN1_MAX_LENGTH_SIZE 9
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