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Kernel for Galaxy S24, rebased on CLO sources (WIP)
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Ard Biesheuvel c6d5a76721 ANDROID: fips140: add kernel crypto module 
To meet FIPS 140 requirements, add support for building a kernel module
"fips140.ko" that contains various cryptographic algorithms built from
existing kernel source files.  At load time, the module checks its own
integrity and self-tests its algorithms, then registers the algorithms
with the crypto API to supersede the original algorithms provided by the
kernel itself.

[ebiggers: this commit originated from "ANDROID: crypto: fips140 -
 perform load time integrity check", but I've folded many later commits
 into it to make forward porting easier.  See below]

Original commits:
  android12-5.10:
    6be141eb36fe ("ANDROID: crypto: fips140 - perform load time integrity check")
    868be244bbed ("ANDROID: inject correct HMAC digest into fips140.ko at build time")
    091338cb398e ("ANDROID: fips140: add missing static keyword to fips140_init()")
    c799c6644b52 ("ANDROID: fips140: adjust some log messages")
    92de53472e68 ("ANDROID: fips140: log already-live algorithms")
    0af06624eadc ("ANDROID: fips140: check for errors from initcalls")
    634445a640a4 ("ANDROID: fips140: fix deadlock in unregister_existing_fips140_algos()")
    e886dd4c339e ("ANDROID: fips140: unregister existing DRBG algorithms")
    b7397e89db29 ("ANDROID: fips140: add power-up cryptographic self-tests")
    50661975be74 ("ANDROID: fips140: add/update module help text")
    b397a0387cb2 ("ANDROID: fips140: test all implementations")
    17ccefe14021 ("ANDROID: fips140: use full 16-byte IV")
    1be58af0776a ("ANDROID: fips140: remove non-prediction-resistant DRBG test")
    2b5843ae2d90 ("ANDROID: fips140: add AES-CBC-CTS")
    2ee56aad318c ("ANDROID: fips140: add AES-CMAC")
    960ebb2b565b ("ANDROID: fips140: add jitterentropy to fips140 module")
    e5b14396f9d2 ("ANDROID: fips140: take into account AES-GCM not being approvable")
    52b70d491bd4 ("ANDROID: fips140: use FIPS140_CFLAGS when compiling fips140-selftests.c")
    6b995f5a5403 ("ANDROID: fips140: preserve RELA sections without relying on the module loader")
    e45108ecff64 ("ANDROID: fips140: block crypto operations until tests complete")
    ecf9341134d1 ("ANDROID: fips140: remove in-place updating of live algorithms")
    482b0323cf29 ("ANDROID: fips140: zeroize temporary values from integrity check")
    64d769e53f20 ("ANDROID: fips140: add service indicators")
    8d7f609cdaa4 ("ANDROID: fips140: add name and version, and a function to retrieve them")
    6b7c37f6c449 ("ANDROID: fips140: use UTS_RELEASE as FIPS version")
    903e97a0ca6d ("ANDROID: fips140: refactor evaluation testing support")
    97fb2104fe22 ("ANDROID: fips140: add support for injecting integrity error")
    109f31ac23f5 ("ANDROID: fips140: add userspace interface for evaluation testing")
  android14-5.15:
    84572a0c7981 ("ANDROID: fips140: split dump-section+add-section into 2 ops")
    b0f8873811d4 ("ANDROID: kleaf: convert fips140 to kleaf")
    2535deae8069 ("ANDROID: GKI: Source GKI_BUILD_CONFIG_FRAGMENT after setting all variables")
    685a2ade28bb ("ANDROID: fips140: add crypto_memneq() back to the module")
    320dfca58a3d ("ANDROID: fips140: fix in-tree builds")
    d4966a820397 ("ANDROID: fips140: remove CONFIG_CRYPTO_FIPS140 option")
    6da26b8750f5 ("ANDROID: fips140: require 'm' to enable CRYPTO_FIPS140_MOD")
    bfcfcce3803b ("ANDROID: fips140: unapply ABS32 relocations generated by KCFI")
    63f46b45dda2 ("ANDROID: fips140: eliminate crypto-fips.a build step")
    ae4ca7a09bb6 ("ANDROID: fips140: allow building without LTO")

Bug: 153614920
Bug: 188620248
Test: tested that the module builds and can be loaded on raven.
Change-Id: I3fde49dbc3d16b149b072a27ba5b4c6219015c94
Signed-off-by: Ard Biesheuvel <ardb@google.com>
Signed-off-by: Eric Biggers <ebiggers@google.com>
2023-01-09 21:33:43 +00:00
android ANDROID: GKI: Update GKI modules protected exports 2022-12-19 18:54:21 +00:00
arch ANDROID: fips140: add kernel crypto module 2023-01-09 21:33:43 +00:00
block Merge remote-tracking branch 'aosp/upstream-f2fs-stable-linux-6.1.y' into android14-6.1 2023-01-04 13:16:02 -08:00
certs Merge 105a36f369 ("Merge tag 'kbuild-fixes-v6.0-3' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild") into android-mainline 2022-09-25 13:23:30 +02:00
crypto ANDROID: fips140: add kernel crypto module 2023-01-09 21:33:43 +00:00
Documentation Merge remote-tracking branch 'aosp/upstream-f2fs-stable-linux-6.1.y' into android14-6.1 2023-01-04 13:16:02 -08:00
drivers ANDROID: crypto: lib/aes - add vendor hooks for AES library routines 2023-01-09 21:33:28 +00:00
fs Merge remote-tracking branch 'aosp/upstream-f2fs-stable-linux-6.1.y' into android14-6.1 2023-01-04 13:16:02 -08:00
include ANDROID: jump_label: disable jump labels in fips140.ko 2023-01-09 21:33:35 +00:00
init FROMLIST: sched: Avoid placing RT threads on cores handling long softirqs 2022-12-20 00:28:45 +00:00
io_uring io_uring: Fix a null-ptr-deref in io_tctx_exit_cb() 2022-12-07 06:45:20 -07:00
ipc ipc/sem: Fix dangling sem_array access in semtimedop race 2022-12-05 10:54:44 -08:00
kernel ANDROID: scheduler: add vendor-specific wake flag 2023-01-05 17:41:10 +00:00
lib ANDROID: crypto: lib/aes - add vendor hooks for AES library routines 2023-01-09 21:33:28 +00:00
LICENSES LICENSES/LGPL-2.1: Add LGPL-2.1-or-later as valid identifiers 2021-12-16 14:33:10 +01:00
mm ANDROID: mm: compaction: fix isolate_and_split_free_page() redefinition 2023-01-03 18:56:33 +00:00
net ANDROID: Add a vendor hook that allow a module to modify the wake flag 2023-01-05 17:41:10 +00:00
rust Kbuild: add Rust support 2022-09-28 09:02:20 +02:00
samples VFIO updates for v6.1-rc1 2022-10-12 14:46:48 -07:00
scripts ANDROID: kbuild: customize module linker script for fips140 module 2023-01-09 21:32:20 +00:00
security Merge 8f71a2b3f4 ("Merge tag 'docs-6.1-fixes' of git://git.lwn.net/linux") into android-mainline 2022-11-02 08:43:07 +01:00
sound Merge 97ee9d1c16 ("Merge tag 'block-6.1-2022-12-02' of git://git.kernel.dk/linux") into android-mainline 2022-12-04 11:47:42 +00:00
tools ANDROID: fips140: add kernel crypto module 2023-01-09 21:33:43 +00:00
usr usr/gen_init_cpio.c: remove unnecessary -1 values from int file 2022-10-03 14:21:44 -07:00
virt Merge branch 'kvm-dwmw2-fixes' into HEAD 2022-11-23 18:59:45 -05:00
.clang-format inet: ping: use hlist_nulls rcu iterator during lookup 2022-12-01 12:42:46 +01:00
.cocciconfig
.get_maintainer.ignore get_maintainer: add Alan to .get_maintainer.ignore 2022-08-20 15:17:44 -07:00
.gitattributes .gitattributes: use 'dts' diff driver for dts files 2019-12-04 19:44:11 -08:00
.gitignore Kbuild: add Rust support 2022-09-28 09:02:20 +02:00
.mailmap 9 hotfixes. 6 for MM, 3 for other areas. Four of these patches address 2022-12-10 17:10:52 -08:00
.rustfmt.toml rust: add .rustfmt.toml 2022-09-28 09:02:20 +02:00
BUILD.bazel ANDROID: fips140: add kernel crypto module 2023-01-09 21:33:43 +00:00
build.config.aarch64 ANDROID: build.config: set NDK_TRIPLE 2022-04-05 14:09:03 -07:00
build.config.allmodconfig ANDROID: allmodconfig: Disable RANDSTRUCT 2022-12-01 10:37:28 +00:00
build.config.allmodconfig.aarch64 ANDROID: drop KERNEL_DIR setting in build.config.common 2020-08-31 15:20:37 +00:00
build.config.allmodconfig.arm ANDROID: drop KERNEL_DIR setting in build.config.common 2020-08-31 15:20:37 +00:00
build.config.allmodconfig.x86_64 ANDROID: drop KERNEL_DIR setting in build.config.common 2020-08-31 15:20:37 +00:00
build.config.amlogic ANDROID: GKI: amlogic: add DTB overlays 2021-02-11 12:23:26 +00:00
build.config.arm ANDROID: build.config: set NDK_TRIPLE 2022-04-05 14:09:03 -07:00
build.config.common ANDROID: fix KCFLAGS override by __ANDROID_COMMON_KERNEL__ 2022-04-29 17:50:28 +00:00
build.config.constants ANDROID: update the BRANCH constant 2023-01-03 15:51:00 -08:00
build.config.db845c ANDROID: Convert db845c to a mixed build. 2022-09-06 23:21:51 +00:00
build.config.gki ANDROID: GKI: Source GKI_BUILD_CONFIG_FRAGMENT after setting all variables 2022-12-27 13:52:08 -08:00
build.config.gki_kasan ANDROID: build.config: re-disable LTO properly for KASAN 2022-03-24 12:41:35 -07:00
build.config.gki_kasan.aarch64 ANDROID: drop KERNEL_DIR setting in build.config.common 2020-08-31 15:20:37 +00:00
build.config.gki_kasan.x86_64 ANDROID: drop KERNEL_DIR setting in build.config.common 2020-08-31 15:20:37 +00:00
build.config.gki_kprobes ANDROID: build.configs: migrate away from CC_LD_ARG 2021-07-02 09:49:23 +00:00
build.config.gki_kprobes.aarch64 ANDROID: Adding kprobes build configs for Cuttlefish 2021-03-01 15:29:45 +00:00
build.config.gki_kprobes.x86_64 ANDROID: Adding kprobes build configs for Cuttlefish 2021-03-01 15:29:45 +00:00
build.config.gki-debug.aarch64 ANDROID: drop KERNEL_DIR setting in build.config.common 2020-08-31 15:20:37 +00:00
build.config.gki-debug.x86_64 ANDROID: drop KERNEL_DIR setting in build.config.common 2020-08-31 15:20:37 +00:00
build.config.gki.aarch64 ANDROID: GKI: Source GKI_BUILD_CONFIG_FRAGMENT after setting all variables 2022-12-27 13:52:08 -08:00
build.config.gki.aarch64.16k ANDROID: 16k target: don't write defconfig to source tree 2022-10-03 11:24:35 -07:00
build.config.gki.aarch64.fips140 ANDROID: fips140: add kernel crypto module 2023-01-09 21:33:43 +00:00
build.config.gki.riscv64 ANDROID: GKI: Source GKI_BUILD_CONFIG_FRAGMENT after setting all variables 2022-12-27 13:52:08 -08:00
build.config.gki.x86_64 ANDROID: GKI: Source GKI_BUILD_CONFIG_FRAGMENT after setting all variables 2022-12-27 13:52:08 -08:00
build.config.khwasan ANDROID: Add a build config fragment for KHWASan. 2021-10-13 19:44:44 +00:00
build.config.riscv64 ANDROID: GKI: Add 64-bit RISC-V config 2022-12-08 20:01:15 +00:00
build.config.rockpi4 ANDROID: rockpi4: Use new DTS_EXT_DIR feature 2021-12-13 21:27:46 +00:00
build.config.x86_64 ANDROID: build.config: set NDK_TRIPLE 2022-04-05 14:09:03 -07:00
COPYING COPYING: state that all contributions really are covered by this file 2020-02-10 13:32:20 -08:00
CREDITS MAINTAINERS: Remove Michal Marek from Kbuild maintainers 2022-11-16 14:53:00 +09:00
Kbuild Kbuild updates for v6.1 2022-10-10 12:00:45 -07:00
Kconfig ANDROID: kbuild: add Kconfig support for external modules 2021-12-13 18:33:18 +00:00
Kconfig.ext ANDROID: kbuild: add Kconfig support for external modules 2021-12-13 18:33:18 +00:00
MAINTAINERS Merge remote-tracking branch 'aosp/upstream-f2fs-stable-linux-6.1.y' into android14-6.1 2022-12-21 11:18:37 -08:00
Makefile ANDROID: kbuild: Search external devicetree path when running clean target 2023-01-06 12:06:55 -08:00
modules.bzl ANDROID: GKI: Fix linter warning 2022-12-01 13:06:20 +00:00
OWNERS ANDROID: add smuckle to OWNERS 2022-06-18 10:41:40 -07:00
OWNERS_DrNo ANDROID: Updating OWNERS_DrNo 2022-08-22 16:34:52 +00:00
README Drop all 00-INDEX files from Documentation/ 2018-09-09 15:08:58 -06:00
README.md ANDROID: README.md: fix checkpatch.pl path typo 2021-04-07 23:16:50 +00:00

README.md

How do I submit patches to Android Common Kernels

  1. BEST: Make all of your changes to upstream Linux. If appropriate, backport to the stable releases. These patches will be merged automatically in the corresponding common kernels. If the patch is already in upstream Linux, post a backport of the patch that conforms to the patch requirements below.

    • Do not send patches upstream that contain only symbol exports. To be considered for upstream Linux, additions of EXPORT_SYMBOL_GPL() require an in-tree modular driver that uses the symbol -- so include the new driver or changes to an existing driver in the same patchset as the export.
    • When sending patches upstream, the commit message must contain a clear case for why the patch is needed and beneficial to the community. Enabling out-of-tree drivers or functionality is not not a persuasive case.

  2. LESS GOOD: Develop your patches out-of-tree (from an upstream Linux point-of-view). Unless these are fixing an Android-specific bug, these are very unlikely to be accepted unless they have been coordinated with kernel-team@android.com. If you want to proceed, post a patch that conforms to the patch requirements below.

Common Kernel patch requirements

  • All patches must conform to the Linux kernel coding standards and pass scripts/checkpatch.pl
  • Patches shall not break gki_defconfig or allmodconfig builds for arm, arm64, x86, x86_64 architectures (see https://source.android.com/setup/build/building-kernels)
  • If the patch is not merged from an upstream branch, the subject must be tagged with the type of patch: UPSTREAM:, BACKPORT:, FROMGIT:, FROMLIST:, or ANDROID:.
  • All patches must have a Change-Id: tag (see https://gerrit-review.googlesource.com/Documentation/user-changeid.html)
  • If an Android bug has been assigned, there must be a Bug: tag.
  • All patches must have a Signed-off-by: tag by the author and the submitter

Additional requirements are listed below based on patch type

Requirements for backports from mainline Linux: UPSTREAM:, BACKPORT:

  • If the patch is a cherry-pick from Linux mainline with no changes at all
    • tag the patch subject with UPSTREAM:.
    • add upstream commit information with a (cherry picked from commit ...) line
    • Example:
      • if the upstream commit message is
        important patch from upstream

        This is the detailed description of the important patch

        Signed-off-by: Fred Jones <fred.jones@foo.org>
  • then Joe Smith would upload the patch for the common kernel as
        UPSTREAM: important patch from upstream

        This is the detailed description of the important patch

        Signed-off-by: Fred Jones <fred.jones@foo.org>

        Bug: 135791357
        Change-Id: I4caaaa566ea080fa148c5e768bb1a0b6f7201c01
        (cherry picked from commit c31e73121f4c1ec41143423ac6ce3ce6dafdcec1)
        Signed-off-by: Joe Smith <joe.smith@foo.org>
  • If the patch requires any changes from the upstream version, tag the patch with BACKPORT: instead of UPSTREAM:.
    • use the same tags as UPSTREAM:
    • add comments about the changes under the (cherry picked from commit ...) line
    • Example:
        BACKPORT: important patch from upstream

        This is the detailed description of the important patch

        Signed-off-by: Fred Jones <fred.jones@foo.org>

        Bug: 135791357
        Change-Id: I4caaaa566ea080fa148c5e768bb1a0b6f7201c01
        (cherry picked from commit c31e73121f4c1ec41143423ac6ce3ce6dafdcec1)
        [joe: Resolved minor conflict in drivers/foo/bar.c ]
        Signed-off-by: Joe Smith <joe.smith@foo.org>

Requirements for other backports: FROMGIT:, FROMLIST:,

  • If the patch has been merged into an upstream maintainer tree, but has not yet been merged into Linux mainline
    • tag the patch subject with FROMGIT:
    • add info on where the patch came from as (cherry picked from commit <sha1> <repo> <branch>). This must be a stable maintainer branch (not rebased, so don't use linux-next for example).
    • if changes were required, use BACKPORT: FROMGIT:
    • Example:
      • if the commit message in the maintainer tree is
        important patch from upstream

        This is the detailed description of the important patch

        Signed-off-by: Fred Jones <fred.jones@foo.org>
  • then Joe Smith would upload the patch for the common kernel as
        FROMGIT: important patch from upstream

        This is the detailed description of the important patch

        Signed-off-by: Fred Jones <fred.jones@foo.org>

        Bug: 135791357
        (cherry picked from commit 878a2fd9de10b03d11d2f622250285c7e63deace
         https://git.kernel.org/pub/scm/linux/kernel/git/foo/bar.git test-branch)
        Change-Id: I4caaaa566ea080fa148c5e768bb1a0b6f7201c01
        Signed-off-by: Joe Smith <joe.smith@foo.org>
  • If the patch has been submitted to LKML, but not accepted into any maintainer tree
    • tag the patch subject with FROMLIST:
    • add a Link: tag with a link to the submittal on lore.kernel.org
    • add a Bug: tag with the Android bug (required for patches not accepted into a maintainer tree)
    • if changes were required, use BACKPORT: FROMLIST:
    • Example:
        FROMLIST: important patch from upstream

        This is the detailed description of the important patch

        Signed-off-by: Fred Jones <fred.jones@foo.org>

        Bug: 135791357
        Link: https://lore.kernel.org/lkml/20190619171517.GA17557@someone.com/
        Change-Id: I4caaaa566ea080fa148c5e768bb1a0b6f7201c01
        Signed-off-by: Joe Smith <joe.smith@foo.org>

Requirements for Android-specific patches: ANDROID:

  • If the patch is fixing a bug to Android-specific code
    • tag the patch subject with ANDROID:
    • add a Fixes: tag that cites the patch with the bug
    • Example:
        ANDROID: fix android-specific bug in foobar.c

        This is the detailed description of the important fix

        Fixes: 1234abcd2468 ("foobar: add cool feature")
        Change-Id: I4caaaa566ea080fa148c5e768bb1a0b6f7201c01
        Signed-off-by: Joe Smith <joe.smith@foo.org>
  • If the patch is a new feature
    • tag the patch subject with ANDROID:
    • add a Bug: tag with the Android bug (required for android-specific features)