/* * AppArmor security module * * This file contains AppArmor policy loading interface function definitions. * * Copyright 2013 Canonical Ltd. * * This program is free software; you can redistribute it and/or * modify it under the terms of the GNU General Public License as * published by the Free Software Foundation, version 2 of the * License. * * Fns to provide a checksum of policy that has been loaded this can be * compared to userspace policy compiles to check loaded policy is what * it should be. */ #include #include "include/apparmor.h" #include "include/crypto.h" static unsigned int apparmor_hash_size; static struct crypto_shash *apparmor_tfm; unsigned int aa_hash_size(void) { return apparmor_hash_size; } int aa_calc_profile_hash(struct aa_profile *profile, u32 version, void *start, size_t len) { struct { struct shash_desc shash; char ctx[crypto_shash_descsize(apparmor_tfm)]; } desc; int error = -ENOMEM; u32 le32_version = cpu_to_le32(version); if (!aa_g_hash_policy) return 0; if (!apparmor_tfm) return 0; profile->hash = kzalloc(apparmor_hash_size, GFP_KERNEL); if (!profile->hash) goto fail; desc.shash.tfm = apparmor_tfm; desc.shash.flags = 0; error = crypto_shash_init(&desc.shash); if (error) goto fail; error = crypto_shash_update(&desc.shash, (u8 *) &le32_version, 4); if (error) goto fail; error = crypto_shash_update(&desc.shash, (u8 *) start, len); if (error) goto fail; error = crypto_shash_final(&desc.shash, profile->hash); if (error) goto fail; return 0; fail: kfree(profile->hash); profile->hash = NULL; return error; } static int __init init_profile_hash(void) { struct crypto_shash *tfm; if (!apparmor_initialized) return 0; tfm = crypto_alloc_shash("sha1", 0, CRYPTO_ALG_ASYNC); if (IS_ERR(tfm)) { int error = PTR_ERR(tfm); AA_ERROR("failed to setup profile sha1 hashing: %d\n", error); return error; } apparmor_tfm = tfm; apparmor_hash_size = crypto_shash_digestsize(apparmor_tfm); aa_info_message("AppArmor sha1 policy hashing enabled"); return 0; } late_initcall(init_profile_hash); a>
path: root/net/wireless/nl80211.c
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authorMark Rutland <mark.rutland@arm.com>2017-01-25 19:30:09 +0000
committerMark Brown <broonie@kernel.org>2017-01-25 21:05:37 +0000
commit1372cef1c697d8aac0cc923f8aa2c37d790ec9ed (patch)
treeed5f350cd559bc15ae370f0c9fd280204e98597d /net/wireless/nl80211.c
parentd00b74613fb18dfd0a5aa99270ee2e72d5c808d7 (diff)
regulator: fixed: Revert support for ACPI interface
This reverts commit 13bed58ce874 (regulator: fixed: add support for ACPI interface). While there does appear to be a practical need to manage regulators on ACPI systems, using ad-hoc properties to describe regulators to the kernel presents a number of problems (especially should ACPI gain first class support for such things), and there are ongoing discussions as to how to manage this. Until there is a rough consensus, revert commit 13bed58ce8748d43, which hasn't been in a released kernel yet as discussed in [1] and the surrounding thread. [1] http://lkml.kernel.org/r/20170125184949.x2wkoo7kbaaajkjk@sirena.org.uk Signed-off-by: Mark Rutland <mark.rutland@arm.com> Cc: Liam Girdwood <lgirdwood@gmail.com> Cc: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com> Cc: Lu Baolu <baolu.lu@linux.intel.com> Cc: Mark Brown <broonie@kernel.org> Cc: Rafael J. Wysocki <rafael@kernel.org> Cc: linux-kernel@vger.kernel.org Signed-off-by: Mark Brown <broonie@kernel.org>
Diffstat (limited to 'net/wireless/nl80211.c')