Document libtasn1 in docs/grub-dev.texi and add the upgrade steps. Also add the patches to make libtasn1 compatible with grub code.
Signed-off-by: Gary Lin <g...@suse.com> Reviewed-by: Vladimir Serbinenko <phco...@gmail.com> Reviewed-by: Daniel Kiper <daniel.ki...@oracle.com> --- docs/grub-dev.texi | 35 +++++++++++++++++++++++++++++++++++ 1 file changed, 35 insertions(+) diff --git a/docs/grub-dev.texi b/docs/grub-dev.texi index 1276c5930..0e136790b 100644 --- a/docs/grub-dev.texi +++ b/docs/grub-dev.texi @@ -506,6 +506,7 @@ to update it. * Gnulib:: * jsmn:: * minilzo:: +* libtasn1:: @end menu @node Gnulib @@ -596,6 +597,40 @@ cp minilzo-2.10/*.[hc] grub-core/lib/minilzo rm -r minilzo-2.10* @end example +@node libtasn1 +@section libtasn1 + +libtasn1 is a library providing 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. + +To upgrade to a new version of the libtasn1 library, download the release +tarball and copy the files into the target directory: + +@example +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/@lbracechar{}README.md,COPYING@rbracechar{} grub-core/lib/libtasn1/ +cp libtasn1-4.19.0/lib/@lbracechar{}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@rbracechar{} grub-core/lib/libtasn1/lib/ +cp libtasn1-4.19.0/lib/includes/libtasn1.h grub-core/lib/libtasn1/ +cp libtasn1-4.19.0/tests/@lbracechar{}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@rbracechar{} grub-core/lib/libtasn1/tests +rm -rf libtasn1-4.19.0* +@end example + +After upgrading the library, it may be necessary to apply the patches in +@file{grub-core/lib/libtasn1-patches/} to adjust the code to be compatible with +GRUB. These patches were needed to use the current version of libtasn1. The +existing patches may not apply cleanly, apply at all, or even be needed for a +newer version of the library, and other patches may be needed due to changes in +the newer version. If existing patches need to be refreshed to apply cleanly, +please include updated patches as part of the a patch set sent to the list. +If new patches are needed or existing patches are not needed, also please send +additions or removals as part of any patch set upgrading libtasn1. + @node Debugging @chapter Debugging -- 2.35.3 _______________________________________________ Grub-devel mailing list Grub-devel@gnu.org https://lists.gnu.org/mailman/listinfo/grub-devel
