Tom, Wolfgang,
Thank you for your inputs.
On Thu, May 16, 2019 at 02:18:03PM +0200, Wolfgang Denk wrote:
Dear Akashi Takahiro,
In message 20190516115636.GA8052@fireball you wrote:
Can you give me an example of U-Boot code which comes from linux (or other projects) and is regularly synced (or updated) with the origin? Who maintains that? and how?
Comes from Linux: a ton... Kconfig, Linker Script, MTD, UBI, UBIFS, ext2/3/4, jffs2, libfdt, many drivers, network stack, reiserfs, just to name a few.
Regularly synced: None. Usually this only happens in irregular intervals, if incompatibilities or bugs (that have been fixed in more recent code) show up
Who: usually the responsible custodians
"Custodians" don't always mean sub-system maintainers. Right?
How: ideally thius should be a straightforward, though largely manual process.
In fact, I have already imported relevant kernel code into U-Boot and it now works perfectly with my experimental UEFI secure boot patch, but see the total size (and numbers) of files imported is quite big. I wonder who is willing to maintain them:
cmd/Kconfig | 3 + include/crypto/internal/rsa.h | 65 ++ include/crypto/pkcs7.h | 51 ++ include/crypto/public_key.h | 88 ++ include/linux/asn1.h | 69 ++ include/linux/asn1_ber_bytecode.h | 93 +++ include/linux/asn1_decoder.h | 24 + include/linux/oid_registry.h | 103 +++ include/u-boot/rsa-mod-exp.h | 3 + lib/Kconfig | 12 + lib/Makefile | 18 + lib/asn1_decoder.c | 518 ++++++++++++ lib/build_OID_registry | 207 +++++ lib/crypto/Kconfig | 16 + lib/crypto/Makefile | 38 + lib/crypto/pkcs7.asn1 | 135 ++++ lib/crypto/pkcs7_parser.c | 701 ++++++++++++++++ lib/crypto/pkcs7_parser.h | 69 ++ lib/crypto/public_key.c | 340 ++++++++ lib/crypto/rsa_helper.c | 81 ++ lib/crypto/rsapubkey.asn1 | 4 + lib/crypto/x509.asn1 | 60 ++ lib/crypto/x509_akid.asn1 | 35 + lib/crypto/x509_cert_parser.c | 681 ++++++++++++++++ lib/crypto/x509_parser.h | 72 ++ lib/crypto/x509_public_key.c | 277 +++++++ lib/oid_registry.c | 170 ++++ lib/rsa/Kconfig | 7 + lib/rsa/Makefile | 2 +- lib/rsa/rsa-keyprop.c | 631 +++++++++++++++ lib/rsa/rsa-verify.c | 59 +- scripts/Makefile | 3 + scripts/Makefile.build | 6 +- scripts/asn1_compiler.c | 1615 +++++++++++++++++++++++++++++++++++++ scripts/linux/asn1.h | 69 ++ scripts/linux/asn1_ber_bytecode.h | 93 +++ tools/Makefile | 2 + 37 files changed, 6409 insertions(+), 11 deletions(-)
My modification is not yet optimized to keep updates much easier, but those numbers will give you a rough idea.
Thanks, -Takahiro Akashi