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Gary Ching-Pang Lin 875eb1b9d5 Simplify the checking of SB and DB states
MokSBState and MokDBState are just 1 byte variables, so a UINT8
local variable is sufficient to include the content.

Signed-off-by: Gary Ching-Pang Lin <glin@suse.com>

Conflicts:
	shim.c
2014-06-25 10:58:23 -04:00
Cryptlib allow 32-bit compilation with 64-bit compiler 2013-11-12 10:31:59 -05:00
include Make sure we default to assuming we're locked down. 2014-06-25 10:55:56 -04:00
lib Make sure we default to assuming we're locked down. 2014-06-25 10:55:56 -04:00
.gitignore Add ident-like blobs to shim.efi for version checking. 2013-10-03 11:11:09 -04:00
cert.S Make vendor_cert/vendor_dbx actually replaceable by an external tool. 2013-10-01 14:03:16 -04:00
COPYRIGHT Add copyright file 2012-07-09 11:03:12 -04:00
crypt_blowfish.c MokManager: support blowfish-based crypt() hash 2013-09-26 11:58:01 -04:00
crypt_blowfish.h MokManager: support blowfish-based crypt() hash 2013-09-26 11:58:01 -04:00
elf_ia32_efi.lds Move embedded certificates to their own section. 2013-06-10 17:35:33 -04:00
elf_ia64_efi.lds Move embedded certificates to their own section. 2013-06-10 17:35:33 -04:00
elf_x86_64_efi.lds Move embedded certificates to their own section. 2013-06-10 17:35:33 -04:00
fallback.c [fallback] Try to boot the first boot option anyway 2014-05-13 13:30:07 -04:00
make-certs Sign MokManager with a locally-generated key 2012-11-26 13:43:50 -05:00
Makefile Exclude ca.crt while signing EFI images 2014-06-25 10:03:08 -04:00
MokManager.c MokManager: handle the error status from ReadKeyStroke 2014-06-25 10:02:18 -04:00
MokVars.txt Add support for disabling db for verification 2013-10-02 11:29:34 -04:00
netboot.c Fetch the netboot image from the same device 2014-06-25 09:53:23 -04:00
netboot.h netboot.h: fix build error on 32-bit systems 2013-11-12 10:25:40 -05:00
PasswordCrypt.c additional bounds-checking on section sizes 2014-04-11 14:41:22 -04:00
PasswordCrypt.h MokManager: support Tradition DES hash 2013-09-26 11:58:01 -04:00
README Add basic documentation 2012-07-28 00:42:43 -04:00
replacements.c Allow fallback to use the system's LoadImage/StartImage . 2014-02-14 17:48:01 -05:00
replacements.h Allow fallback to use the system's LoadImage/StartImage . 2014-02-14 17:48:01 -05:00
shim.c Simplify the checking of SB and DB states 2014-06-25 10:58:23 -04:00
shim.h Make SHIM_LOCK_GUID a first-class object with a symbol. 2013-09-23 10:40:49 -04:00
testplan.txt Add a failure case to the test plan and fix an ordering error. 2014-02-14 17:48:01 -05:00
TODO Update for Josh's changes. 2013-10-02 13:33:52 -04:00
ucs2.h Add StrCSpn() 2013-04-30 09:46:22 -04:00
version.c.in Add ident-like blobs to shim.efi for version checking. 2013-10-03 11:11:09 -04:00
version.h Add ident-like blobs to shim.efi for version checking. 2013-10-03 11:11:09 -04:00

shim is a trivial EFI application that, when run, attempts to open and
execute another application. It will initially attempt to do this via the
standard EFI LoadImage() and StartImage() calls. If these fail (because secure
boot is enabled and the binary is not signed with an appropriate key, for
instance) it will then validate the binary against a built-in certificate. If
this succeeds and if the binary or signing key are not blacklisted then shim
will relocate and execute the binary.

shim will also install a protocol which permits the second-stage bootloader
to perform similar binary validation. This protocol has a GUID as described
in the shim.h header file and provides a single entry point. On 64-bit systems
this entry point expects to be called with SysV ABI rather than MSABI, and
so calls to it should not be wrapped.

To use shim, simply place a hex dump of the public certificate in cert.h
and build it with make.