/** * eCryptfs: Linux filesystem encryption layer * * Copyright (C) 1997-2003 Erez Zadok * Copyright (C) 2001-2003 Stony Brook University * Copyright (C) 2004-2006 International Business Machines Corp. * Author(s): Michael A. Halcrow * * 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; either version 2 of the * License, or (at your option) any later version. * * This program is distributed in the hope that it will be useful, but * WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program; if not, write to the Free Software * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA * 02111-1307, USA. */ #include #include #include #include #include #include "ecryptfs_kernel.h" /** * ecryptfs_d_revalidate - revalidate an ecryptfs dentry * @dentry: The ecryptfs dentry * @flags: lookup flags * * Called when the VFS needs to revalidate a dentry. This * is called whenever a name lookup finds a dentry in the * dcache. Most filesystems leave this as NULL, because all their * dentries in the dcache are valid. * * Returns 1 if valid, 0 otherwise. * */ static int ecryptfs_d_revalidate(struct dentry *dentry, unsigned int flags) { struct dentry *lower_dentry = ecryptfs_dentry_to_lower(dentry); int rc = 1; if (flags & LOOKUP_RCU) return -ECHILD; if (lower_dentry->d_flags & DCACHE_OP_REVALIDATE) rc = lower_dentry->d_op->d_revalidate(lower_dentry, flags); if (d_really_is_positive(dentry)) { struct inode *inode = d_inode(dentry); fsstack_copy_attr_all(inode, ecryptfs_inode_to_lower(inode)); if (!inode->i_nlink) return 0; } return rc; } struct kmem_cache *ecryptfs_dentry_info_cache; static void ecryptfs_dentry_free_rcu(struct rcu_head *head) { kmem_cache_free(ecryptfs_dentry_info_cache, container_of(head, struct ecryptfs_dentry_info, rcu)); } /** * ecryptfs_d_release * @dentry: The ecryptfs dentry * * Called when a dentry is really deallocated. */ static void ecryptfs_d_release(struct dentry *dentry) { struct ecryptfs_dentry_info *p = dentry->d_fsdata; if (p) { path_put(&p->lower_path); call_rcu(&p->rcu, ecryptfs_dentry_free_rcu); } } const struct dentry_operations ecryptfs_dops = { .d_revalidate = ecryptfs_d_revalidate, .d_release = ecryptfs_d_release, }; gi/linux/net-next.git/commit/?id=11e3b725cfc282efe9d4a354153e99d86a16af08'>root/include/net/llc_pdu.h
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authorArd Biesheuvel <ard.biesheuvel@linaro.org>2017-01-17 13:46:29 +0000
committerHerbert Xu <herbert@gondor.apana.org.au>2017-01-23 22:41:33 +0800
commit11e3b725cfc282efe9d4a354153e99d86a16af08 (patch)
tree8b5b9e0e1bcae1ab98ee652ffb7b13b05c209bd6 /include/net/llc_pdu.h
parentd6040764adcb5cb6de1489422411d701c158bb69 (diff)
crypto: arm64/aes-blk - honour iv_out requirement in CBC and CTR modes
Update the ARMv8 Crypto Extensions and the plain NEON AES implementations in CBC and CTR modes to return the next IV back to the skcipher API client. This is necessary for chaining to work correctly. Note that for CTR, this is only done if the request is a round multiple of the block size, since otherwise, chaining is impossible anyway. Cc: <stable@vger.kernel.org> # v3.16+ Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Diffstat (limited to 'include/net/llc_pdu.h')