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From: mkayaalp@linux.vnet.ibm.com (Mehmet Kayaalp)
To: linux-security-module@vger.kernel.org
Subject: [PATCH v5 0/4] Certificate insertion support for x86 bzImages
Date: Wed, 10 May 2017 14:20:52 -0400	[thread overview]
Message-ID: <1494440456-28671-1-git-send-email-mkayaalp@linux.vnet.ibm.com> (raw)

These patches add support for modifying the reserved space for extra
certificates in a compressed bzImage in x86. This allows separating the
system keyring certificate from the kernel build process. After the kernel
image is distributed, the insert-sys-cert script can be used to insert the
certificate for x86.

Changes:

v5:
* Added CRC fixing (3/4)

v4:
* Applied checkpatch.pl suggestions (2/4, 3/4)
* Cleaned up the commit messages (1/4, 2/4)
* Added the build file to .gitignore (1/4)

v3:
* Rewrote 1/4 to insert incompressible bytes are at build time. Previous
solution required changes to <arch>/boot/Makefile's for modifying the
vmlinux file after linking, and did not work well with cross compilation.
* Added 2/4 for ELF class-independent processing of vmlinux file, in case
the script was compiled for 64-bit and the kernel was compiled for 32-bit.
* Reordered 3/4, added x86 bzImage boot version (>=2.08) verification.

v2:
* Rebased arch/boot/x86/Makefile patch (removed in v3)

Mehmet Kayaalp (4):
  KEYS: Insert incompressible bytes to reserve space in bzImage
  KEYS: Add ELF class-independent certificate insertion support
  KEYS: Support for inserting a certificate into x86 bzImage
  KEYS: Print insert-sys-cert information to stdout instead of stderr

 certs/.gitignore            |   1 +
 certs/Makefile              |  21 +-
 certs/system_certificates.S |   2 +-
 scripts/Makefile            |   1 +
 scripts/insert-sys-cert.c   | 473 +++++++++++++++++++++++++++++++++-----------
 5 files changed, 381 insertions(+), 117 deletions(-)

-- 
2.7.4

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             reply	other threads:[~2017-05-10 18:20 UTC|newest]

Thread overview: 7+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2017-05-10 18:20 Mehmet Kayaalp [this message]
2017-05-10 18:20 ` [PATCH v5 1/4] KEYS: Insert incompressible bytes to reserve space in bzImage Mehmet Kayaalp
2017-05-10 18:20 ` [PATCH v5 2/4] KEYS: Add ELF class-independent certificate insertion support Mehmet Kayaalp
2017-05-10 18:20 ` [PATCH v5 3/4] KEYS: Support for inserting a certificate into x86 bzImage Mehmet Kayaalp
2017-05-10 18:20 ` [PATCH v5 4/4] KEYS: Print insert-sys-cert information to stdout instead of stderr Mehmet Kayaalp
2017-09-25  6:12 ` [PATCH v5 0/4] Certificate insertion support for x86 bzImages Mike Rapoport
2017-11-08 13:30 ` [PATCH v5 2/4] KEYS: Add ELF class-independent certificate insertion support David Howells

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