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[PATCH v19 15/33] libtasn1: compile into asn1 module


From: Gary Lin
Subject: [PATCH v19 15/33] libtasn1: compile into asn1 module
Date: Fri, 6 Sep 2024 17:11:07 +0800

From: Daniel Axtens <dja@axtens.net>

Create a wrapper file that specifies the module license.
Set up the makefile so it is built.

Signed-off-by: Daniel Axtens <dja@axtens.net>
Signed-off-by: Gary Lin <glin@suse.com>
Reviewed-by: Daniel Kiper <daniel.kiper@oracle.com>
---
 autogen.sh                         | 19 +++++++++++++++++++
 grub-core/Makefile.core.def        | 15 +++++++++++++++
 grub-core/lib/libtasn1_wrap/wrap.c | 27 +++++++++++++++++++++++++++
 3 files changed, 61 insertions(+)
 create mode 100644 grub-core/lib/libtasn1_wrap/wrap.c

diff --git a/autogen.sh b/autogen.sh
index 195daa541..d08dc9a31 100755
--- a/autogen.sh
+++ b/autogen.sh
@@ -51,6 +51,25 @@ for x in mpi-asm-defs.h mpih-add1.c mpih-sub1.c mpih-mul1.c 
mpih-mul2.c mpih-mul
     cp grub-core/lib/libgcrypt-grub/mpi/generic/"$x" 
grub-core/lib/libgcrypt-grub/mpi/"$x"
 done
 
+echo "Importing libtasn1..."
+if [ -d grub-core/lib/libtasn1-grub ]; then
+  rm -rf grub-core/lib/libtasn1-grub
+fi
+
+mkdir -p grub-core/lib/libtasn1-grub/lib
+cp grub-core/lib/libtasn1/lib/*.[ch] grub-core/lib/libtasn1-grub/lib
+cp grub-core/lib/libtasn1/libtasn1.h grub-core/lib/libtasn1-grub/
+
+for patch in \
+       0001-libtasn1-disable-code-not-needed-in-grub.patch \
+       0002-libtasn1-replace-strcat-with-strcpy-in-_asn1_str_cat.patch \
+       0003-libtasn1-replace-strcat-with-_asn1_str_cat.patch \
+       0004-libtasn1-adjust-the-header-paths-in-libtasn1.h.patch \
+       0005-libtasn1-Use-grub_divmod64-for-division.patch \
+       0006-libtasn1-fix-the-potential-buffer-overrun.patch ; do
+  patch -p1 -i grub-core/lib/libtasn1-patches/$patch
+done
+
 echo "Generating Automake input..."
 
 # Automake doesn't like including files from a path outside the project.
diff --git a/grub-core/Makefile.core.def b/grub-core/Makefile.core.def
index 063ef5dd7..cb4c5800e 100644
--- a/grub-core/Makefile.core.def
+++ b/grub-core/Makefile.core.def
@@ -2606,3 +2606,18 @@ module = {
   enable = efi;
   depends = part_gpt;
 };
+
+module = {
+  name = asn1;
+  common = lib/libtasn1-grub/lib/decoding.c;
+  common = lib/libtasn1-grub/lib/coding.c;
+  common = lib/libtasn1-grub/lib/element.c;
+  common = lib/libtasn1-grub/lib/structure.c;
+  common = lib/libtasn1-grub/lib/parser_aux.c;
+  common = lib/libtasn1-grub/lib/gstr.c;
+  common = lib/libtasn1-grub/lib/errors.c;
+  common = lib/libtasn1_wrap/wrap.c;
+  cflags = '$(CFLAGS_POSIX) $(CFLAGS_GNULIB)';
+  /* -Wno-type-limits comes from configure.ac of libtasn1 */
+  cppflags = '$(CPPFLAGS_POSIX) $(CPPFLAGS_GNULIB) 
-I$(srcdir)/lib/libtasn1-grub -I$(srcdir)/lib/libtasn1-grub/lib 
-Wno-type-limits';
+};
diff --git a/grub-core/lib/libtasn1_wrap/wrap.c 
b/grub-core/lib/libtasn1_wrap/wrap.c
new file mode 100644
index 000000000..fcada55a8
--- /dev/null
+++ b/grub-core/lib/libtasn1_wrap/wrap.c
@@ -0,0 +1,27 @@
+/*
+ *  GRUB  --  GRand Unified Bootloader
+ *  Copyright (C) 2020 IBM Corporation
+ *  Copyright (C) 2024 Free Software Foundation, Inc.
+ *
+ *  GRUB 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.
+ *
+ *  GRUB 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 GRUB.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include <grub/dl.h>
+
+/*
+ * libtasn1 is provided under LGPL2.1+, which is compatible
+ * with GPL3+. As GRUB as a whole is under GPL3+, this module
+ * is therefore under GPL3+ also.
+ */
+GRUB_MOD_LICENSE ("GPLv3+");
-- 
2.35.3




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