/* * 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); it.cgi/linux/net-next.git/diff/net/sctp/socket.c?h=nds-private-remove&id=3f5c34c6d4688b3b7e1dbc7bbc68a2f03a0d6b0c'>diff
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authorManuel Lauss <manuel.lauss@gmail.com>2017-01-24 10:12:00 -0800
committerDmitry Torokhov <dmitry.torokhov@gmail.com>2017-01-24 10:27:34 -0800
commit3f5c34c6d4688b3b7e1dbc7bbc68a2f03a0d6b0c (patch)
treeb9387d85890c4466d9cf3d3145c95e0b07235234 /net/sctp/socket.c
parent62ed8ceda1699acae01b666497f004bfd3d67a6f (diff)
Input: wm97xx - make missing platform data non-fatal
Commit 6480af4915d6 ("power_supply: wm97xx_battery: use power_supply_get_drvdata") made wm97xx platform data mandatory, although it's still optional. This patch fixes an oops during driver probe on one of my MIPS boards with a wm9712. Signed-off-by: Manuel Lauss <manuel.lauss@gmail.com> Reviewed-by: Robert Jarzmik <robert.jarzmik@free.fr> Acked-by: Charles Keepax <ckeepax@opensource.wolfsonmicro.com> Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Diffstat (limited to 'net/sctp/socket.c')