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2013-11-12fallback.c: fix 32-bit compilationAndrew Boie
fh->Read expects pointer to 32-bit int, use UINTN Change-Id: If1a728efd51a9a24dfcd8123e84bf4c0713491fe Signed-off-by: Andrew Boie <andrew.p.boie@intel.com>
2013-11-12properly compile OpenSSL in 32-bit modeAndrey Petrov
Change-Id: Iff3ee5ae0f0b95b282b99a23e465723b4e9f6104 Signed-off-by: Andrey Petrov <andrey.petrov@intel.com> Signed-off-by: Andrew Boie <andrew.p.boie@intel.com>
2013-11-12netboot.h: fix build error on 32-bit systemsAndrew Boie
Function prototype/implementation mismatch. Change-Id: I89aaae1b49d0372d3aed76fc21c194e0ae55f72e Signed-off-by: Andrew Boie <andrew.p.boie@intel.com>
2013-11-12shim.c: Add support for hashing/relocation of 32-bit binariesMohanraj S
Change-Id: Ib93305f7f1691d1b142567507df1058de62dde06 Signed-off-by: Andrew Boie <andrew.p.boie@intel.com>
2013-11-12fix verify_mok()Andrew Boie
() Fix the return value semantics. If the MokList doesn't exist, we are OK. If the MokList was compromised but we were able to erase it, that is OK too. Only if the list can't be nuked do we return an error. () Fix use of potentially uninitialized attribute variable () Actually use the return value when called from verify_buffer. Change-Id: If16df21d79c52a1726928df96d133390cde4cb7e Signed-off-by: Andrew Boie <andrew.p.boie@intel.com>
2013-11-06Bump version to 0.7.0.7Peter Jones
Do not use 0.6; on some machines it misunderstands the SetupMode variable. Signed-off-by: Peter Jones <pjones@redhat.com>
2013-11-06Fix check logic for SetupMode variable.Peter Jones
After going back and inspecting this further, the logic for "SetupMode" being present at all was incorrect. Also initialize our state earlier so it's sure to always be set. Signed-off-by: Peter Jones <pjones@redhat.com>
2013-10-31Make tag its own make target, and make it sign tags.Peter Jones
Signed-off-by: Peter Jones <pjones@redhat.com>
2013-10-31Bump version to 0.6Peter Jones
Signed-off-by: Peter Jones <pjones@redhat.com>
2013-10-30Don't free GetVariable() return data without checking the status code.Peter Jones
This breaks every machine from before Secure Boot was a thing. Signed-off-by: Peter Jones <pjones@redhat.com>
2013-10-28We should be checking both mok and the system's SB settingsPeter Jones
When we call hook_system_services(), we're currently only checking mok's setting. We should use secure_mode() instead so it'll check both. Signed-off-by: Peter Jones <pjones@redhat.com>
2013-10-23Revert "additional bounds-checking on section sizes"Peter Jones
This reverts commit 21e40f0174814b3d91836e38c7cf95c8f2f1f3a4. In principle I like the idea of what's going on here, but generate_hash() really does need to have the expected result.
2013-10-22Don't reject all binaries without a certificate database.Peter Jones
If a binary isn't signed, but its hash is enrolled in db, it won't have a certificate database. So in those cases, don't check it against certificate databases in db/dbx/etc, but we don't need to reject it outright. Signed-off-by: Peter Jones <pjones@redhat.com>
2013-10-22additional bounds-checking on section sizesKees Cook
This adds additional bounds-checking on the section sizes. Also adds -Wsign-compare to the Makefile and replaces some signed variables with unsigned counteparts for robustness. Signed-off-by: Kees Cook <kees@ubuntu.com>
2013-10-04Bump version to 0.50.5Peter Jones
Signed-off-by: Peter Jones <pjones@redhat.com>
2013-10-04Unhook system services as we exit.Peter Jones
If we never find a valid thing to boot, we need to undo the weird things we've done. Signed-off-by: Peter Jones <pjones@redhat.com>
2013-10-04Put SHIM_VERBOSE under shim's guid, not global.Peter Jones
Signed-off-by: Peter Jones <pjones@redhat.com>
2013-10-04Try to actually make debug printing look reasonable.Peter Jones
Signed-off-by: Peter Jones <pjones@redhat.com>
2013-10-04Do more strict checking on PE Headers.Peter Jones
Signed-off-by: Peter Jones <pjones@redhat.com>
2013-10-04Reapply patches lost in the updateMatthew Garrett
2013-10-04Update to current Tiano CryptlibMatthew Garrett
2013-10-04Add Tiano patch e98e59c237e17f064a4ecffb39d45499f89720a1Matthew Garrett
This is: Fix a bug in OpensslLib that PKCS7_verify will use over 8k stack space. Signed-off-by: Fu Siyuan <siyuan.fu@intel.com> Reviewed-by: Ye Ting <ting.ye@intel.com> Reviewed-by: Dong Guo <guo.dong@intel.com> from upstream.
2013-10-03Improve PE image bounds checking.Peter Jones
Signed-off-by: Peter Jones <pjones@redhat.com>
2013-10-03Add ident-like blobs to shim.efi for version checking.Peter Jones
I feel dirty.
2013-10-02Update for Josh's changes.Peter Jones
Signed-off-by: Peter Jones <pjones@redhat.com>
2013-10-02Add support for disabling db for verificationJosh Boyer
Provide a mechanism for a physically present end user to disable the use of db when doing signature verification. This is handled by the OS passing down a variable that contains a UINT32 and a SHA256 hash. If this variable is present, MokManager prompts the user to choose whether to enable or disable the use of db for verification purposes (depending on the value of the UINT32). They are then asked to type the passphrase that matches the hash. This then saves a boot services variable which is checked by shim, and if set will cause shim to not use db for verification purposes. If db is to be ignored, shim will export a runtime variable called 'MokIgnoreDB' for the OS to query at runtime. Signed-off-by: Josh Boyer <jwboyer@fedoraproject.org>
2013-10-02Remove "shim.cer" on "make clean".Peter Jones
If we don't do this, an old key winds up being reused and MokManager.efi.signed is signed with a different key than shim_cert reflects. Signed-off-by: Peter Jones <pjones@redhat.com>
2013-10-02Use CHAR8 not UINT8 for character work.Peter Jones
This gets rid of a lot of type casting that we don't need, and helps reduce warnings when I switch a bunch of gnu-efi stuff to taking const arguments. Signed-off-by: Peter Jones <pjones@redhat.com>
2013-10-02CompareMem expects void * and gcc complains.Peter Jones
Sorry about that. Signed-off-by: Peter Jones <pjones@redhat.com>
2013-10-02Fix wrong type on console_error() call.Peter Jones
Stupid L"". Signed-off-by: Peter Jones <pjones@redhat.com>
2013-10-01If we fail to install our protocol, don't continue.Peter Jones
This shouldn't be exploitable unless you've got a way to make InstallProtocol fail and still, for example, have memory free to actually load and run something. Signed-off-by: Peter Jones <pjones@redhat.com>
2013-10-01Clean up warnings.Peter Jones
Signed-off-by: Peter Jones <pjones@redhat.com>
2013-10-01Conditionalize overriding the security policy.Peter Jones
Make OVERRIDE_SECURITY_POLICY a build option. Signed-off-by: Peter Jones <pjones@redhat.com>
2013-10-01Merge console_control.h and console.hPeter Jones
Since these are topically the same thing, they can live together. Signed-off-by: Peter Jones <pjones@redhat.com>
2013-10-01Make verbose stuff use console_notifyPeter Jones
Signed-off-by: Peter Jones <pjones@redhat.com>
2013-10-01MokManager needs to disable the graphics console.Peter Jones
Without this patch, on some machines we never see MokManager's UI. This protocol has never (I think?) been officially published, and yet I still have new hardware that needs it. If you're looking for a reference, look at: EdkCompatibilityPkg/Foundation/Protocol/ConsoleControl/ConsoleControl.c in the edk2 tree from Tiano. Signed-off-by: Peter Jones <pjones@redhat.com>
2013-10-01Include shim's vendor_cert in MokListRTPeter Jones
There needs to be some way to communicate to the kernel that it's a trusted key, and since this mechanism already exists, it's by far the easiest.
2013-10-01Harden shim against non-participating bootloaders.Peter Jones
It works like this: during startup of shim, we hook into the system's ExitBootServices() and StartImage(). If the system's StartImage() is called, we automatically unhook, because we're chainloading to something the system can verify. When shim's verify is called, we record what kind of certificate the image was verified against. If the call /succeeds/, we remove our hooks. If ExitBootServices() is called, we check how the bootloader verified whatever it is loading. If it was verified by its hash, we unhook everything and call the system's EBS(). If it was verified by certificate, we check if it has called shim_verify(). If it has, we unhook everything and call the system's EBS() If the bootloader has not verified anything, and is itself verified by a certificate, we display a security violation warning and halt the machine.
2013-10-01Make vendor_cert/vendor_dbx actually replaceable by an external tool.Peter Jones
This moves them both to be computed at runtime from a pointer+offset rather than just a pointer, so that their real address can be entirely derived from the section they're in. This means you can replace the whole .vendor_cert section with a new one with certs that don't have the same size.
2013-10-01Remove TODO items fixed by merging lf_merge and lcp/lf-security-override.Peter Jones
Signed-off-by: Peter Jones <pjones@redhat.com>
2013-09-26Don't use LibGetVariable(), since it doesn't give us real error codes.Peter Jones
2013-09-26integrate security overrideGary Ching-Pang Lin
2013-09-26Clean up tarballs in "make clean"Peter Jones
Signed-off-by: Peter Jones <pjones@redhat.com>
2013-09-26Merge variable retrieving functionsGary Ching-Pang Lin
2013-09-26Merge signature.h into efiauthenticated.h and guid.hGary Ching-Pang Lin
Conflicts: shim.c
2013-09-26Merge two PeImage.h into onePeter Jones
Conflicts: Makefile
2013-09-26Free unused memory spaceGary Ching-Pang Lin
2013-09-26Adjust the result of gmtime() to fit the definitionGary Ching-Pang Lin
2013-09-26Rand: check the status of the pseudorandom number generatorGary Ching-Pang Lin
2013-09-26MokManager: check the suffix of the key fileGary Ching-Pang Lin
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