/* * Copyright (C) 2012 Red Hat, Inc. * Copyright (C) 2012 Jeremy Kerr * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License version 2 as * published by the Free Software Foundation. */ #include #include #include #include #include #include "internal.h" struct inode *efivarfs_get_inode(struct super_block *sb, const struct inode *dir, int mode, dev_t dev, bool is_removable) { struct inode *inode = new_inode(sb); if (inode) { inode->i_ino = get_next_ino(); inode->i_mode = mode; inode->i_atime = inode->i_mtime = inode->i_ctime = current_time(inode); inode->i_flags = is_removable ? 0 : S_IMMUTABLE; switch (mode & S_IFMT) { case S_IFREG: inode->i_fop = &efivarfs_file_operations; break; case S_IFDIR: inode->i_op = &efivarfs_dir_inode_operations; inode->i_fop = &simple_dir_operations; inc_nlink(inode); break; } } return inode; } /* * Return true if 'str' is a valid efivarfs filename of the form, * * VariableName-12345678-1234-1234-1234-1234567891bc */ bool efivarfs_valid_name(const char *str, int len) { const char *s = str + len - EFI_VARIABLE_GUID_LEN; /* * We need a GUID, plus at least one letter for the variable name, * plus the '-' separator */ if (len < EFI_VARIABLE_GUID_LEN + 2) return false; /* GUID must be preceded by a '-' */ if (*(s - 1) != '-') return false; /* * Validate that 's' is of the correct format, e.g. * * 12345678-1234-1234-1234-123456789abc */ return uuid_is_valid(s); } static int efivarfs_create(struct inode *dir, struct dentry *dentry, umode_t mode, bool excl) { struct inode *inode = NULL; struct efivar_entry *var; int namelen, i = 0, err = 0; bool is_removable = false; if (!efivarfs_valid_name(dentry->d_name.name, dentry->d_name.len)) return -EINVAL; var = kzalloc(sizeof(struct efivar_entry), GFP_KERNEL); if (!var) return -ENOMEM; /* length of the variable name itself: remove GUID and separator */ namelen = dentry->d_name.len - EFI_VARIABLE_GUID_LEN - 1; uuid_le_to_bin(dentry->d_name.name + namelen + 1, &var->var.VendorGuid); if (efivar_variable_is_removable(var->var.VendorGuid, dentry->d_name.name, namelen)) is_removable = true; inode = efivarfs_get_inode(dir->i_sb, dir, mode, 0, is_removable); if (!inode) { err = -ENOMEM; goto out; } for (i = 0; i < namelen; i++) var->var.VariableName[i] = dentry->d_name.name[i]; var->var.VariableName[i] = '\0'; inode->i_private = var; err = efivar_entry_add(var, &efivarfs_list); if (err) goto out; d_instantiate(dentry, inode); dget(dentry); out: if (err) { kfree(var); if (inode) iput(inode); } return err; } static int efivarfs_unlink(struct inode *dir, struct dentry *dentry) { struct efivar_entry *var = d_inode(dentry)->i_private; if (efivar_entry_delete(var)) return -EINVAL; drop_nlink(d_inode(dentry)); dput(dentry); return 0; }; const struct inode_operations efivarfs_dir_inode_operations = { .lookup = simple_lookup, .unlink = efivarfs_unlink, .create = efivarfs_create, }; ols/scripts/Makefile.include
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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 /tools/scripts/Makefile.include
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 'tools/scripts/Makefile.include')