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Linux kernel mirror (for testing) git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
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123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384858687888990// SPDX-License-Identifier: GPL-2.0-or-later/* * eCryptfs: Linux filesystem encryption layer * Functions only useful for debugging. * * Copyright (C) 2006 International Business Machines Corp. * Author(s): Michael A. Halcrow <mahalcro@us.ibm.com> */
#include <linux/string.h>#include "ecryptfs_kernel.h"
/* * ecryptfs_dump_auth_tok - debug function to print auth toks * * This function will print the contents of an ecryptfs authentication * token. */void ecryptfs_dump_auth_tok(struct ecryptfs_auth_tok *auth_tok){ char salt[ECRYPTFS_SALT_SIZE * 2 + 1]; char sig[ECRYPTFS_SIG_SIZE_HEX + 1];
ecryptfs_printk(KERN_DEBUG, "Auth tok at mem loc [%p]:\n", auth_tok); if (auth_tok->flags & ECRYPTFS_PRIVATE_KEY) { ecryptfs_printk(KERN_DEBUG, " * private key type\n"); } else { ecryptfs_printk(KERN_DEBUG, " * passphrase type\n"); ecryptfs_to_hex(salt, auth_tok->token.password.salt, ECRYPTFS_SALT_SIZE); ecryptfs_printk(KERN_DEBUG, " * salt = [%s]\n", salt); if (auth_tok->token.password.flags & ECRYPTFS_PERSISTENT_PASSWORD) { ecryptfs_printk(KERN_DEBUG, " * persistent\n"); } strscpy(sig, auth_tok->token.password.signature); ecryptfs_printk(KERN_DEBUG, " * signature = [%s]\n", sig); } ecryptfs_printk(KERN_DEBUG, " * session_key.flags = [0x%x]\n", auth_tok->session_key.flags); if (auth_tok->session_key.flags & ECRYPTFS_USERSPACE_SHOULD_TRY_TO_DECRYPT) ecryptfs_printk(KERN_DEBUG, " * Userspace decrypt request set\n"); if (auth_tok->session_key.flags & ECRYPTFS_USERSPACE_SHOULD_TRY_TO_ENCRYPT) ecryptfs_printk(KERN_DEBUG, " * Userspace encrypt request set\n"); if (auth_tok->session_key.flags & ECRYPTFS_CONTAINS_DECRYPTED_KEY) { ecryptfs_printk(KERN_DEBUG, " * Contains decrypted key\n"); ecryptfs_printk(KERN_DEBUG, " * session_key.decrypted_key_size = [0x%x]\n", auth_tok->session_key.decrypted_key_size); ecryptfs_printk(KERN_DEBUG, " * Decrypted session key " "dump:\n"); if (ecryptfs_verbosity > 0) ecryptfs_dump_hex(auth_tok->session_key.decrypted_key, ECRYPTFS_DEFAULT_KEY_BYTES); } if (auth_tok->session_key.flags & ECRYPTFS_CONTAINS_ENCRYPTED_KEY) { ecryptfs_printk(KERN_DEBUG, " * Contains encrypted key\n"); ecryptfs_printk(KERN_DEBUG, " * session_key.encrypted_key_size = [0x%x]\n", auth_tok->session_key.encrypted_key_size); ecryptfs_printk(KERN_DEBUG, " * Encrypted session key " "dump:\n"); if (ecryptfs_verbosity > 0) ecryptfs_dump_hex(auth_tok->session_key.encrypted_key, auth_tok->session_key. encrypted_key_size); }}
/** * ecryptfs_dump_hex - debug hex printer * @data: string of bytes to be printed * @bytes: number of bytes to print * * Dump hexadecimal representation of char array */void ecryptfs_dump_hex(char *data, int bytes){ if (ecryptfs_verbosity < 1) return;
print_hex_dump(KERN_DEBUG, "ecryptfs: ", DUMP_PREFIX_OFFSET, 16, 1, data, bytes, false);}