| keysetup.c (d2fe97545a1e2d01c0ca0105bdc59002a0d0b130) | keysetup.c (ed318a6cc0b620440e65f48eb527dc3df7269ce4) |
|---|---|
| 1// SPDX-License-Identifier: GPL-2.0 2/* 3 * Key setup facility for FS encryption support. 4 * 5 * Copyright (C) 2015, Google, Inc. 6 * 7 * Originally written by Michael Halcrow, Ildar Muslukhov, and Uday Savagaonkar. 8 * Heavily modified since then. --- 381 unchanged lines hidden (view full) --- 390 return 0; 391 392 res = fscrypt_initialize(inode->i_sb->s_cop->flags); 393 if (res) 394 return res; 395 396 res = inode->i_sb->s_cop->get_context(inode, &ctx, sizeof(ctx)); 397 if (res < 0) { | 1// SPDX-License-Identifier: GPL-2.0 2/* 3 * Key setup facility for FS encryption support. 4 * 5 * Copyright (C) 2015, Google, Inc. 6 * 7 * Originally written by Michael Halcrow, Ildar Muslukhov, and Uday Savagaonkar. 8 * Heavily modified since then. --- 381 unchanged lines hidden (view full) --- 390 return 0; 391 392 res = fscrypt_initialize(inode->i_sb->s_cop->flags); 393 if (res) 394 return res; 395 396 res = inode->i_sb->s_cop->get_context(inode, &ctx, sizeof(ctx)); 397 if (res < 0) { |
| 398 if (!fscrypt_dummy_context_enabled(inode) || 399 IS_ENCRYPTED(inode)) { | 398 const union fscrypt_context *dummy_ctx = 399 fscrypt_get_dummy_context(inode->i_sb); 400 401 if (IS_ENCRYPTED(inode) || !dummy_ctx) { |
| 400 fscrypt_warn(inode, 401 "Error %d getting encryption context", 402 res); 403 return res; 404 } 405 /* Fake up a context for an unencrypted directory */ | 402 fscrypt_warn(inode, 403 "Error %d getting encryption context", 404 res); 405 return res; 406 } 407 /* Fake up a context for an unencrypted directory */ |
| 406 memset(&ctx, 0, sizeof(ctx)); 407 ctx.version = FSCRYPT_CONTEXT_V1; 408 ctx.v1.contents_encryption_mode = FSCRYPT_MODE_AES_256_XTS; 409 ctx.v1.filenames_encryption_mode = FSCRYPT_MODE_AES_256_CTS; 410 memset(ctx.v1.master_key_descriptor, 0x42, 411 FSCRYPT_KEY_DESCRIPTOR_SIZE); 412 res = sizeof(ctx.v1); | 408 res = fscrypt_context_size(dummy_ctx); 409 memcpy(&ctx, dummy_ctx, res); |
| 413 } 414 415 crypt_info = kmem_cache_zalloc(fscrypt_info_cachep, GFP_NOFS); 416 if (!crypt_info) 417 return -ENOMEM; 418 419 crypt_info->ci_inode = inode; 420 --- 131 unchanged lines hidden --- | 410 } 411 412 crypt_info = kmem_cache_zalloc(fscrypt_info_cachep, GFP_NOFS); 413 if (!crypt_info) 414 return -ENOMEM; 415 416 crypt_info->ci_inode = inode; 417 --- 131 unchanged lines hidden --- |