mirror of
https://github.com/edk2-porting/linux-next.git
synced 2024-12-24 21:24:00 +08:00
ca939e79e3
Trivial updates to comment and debug statement. Signed-off-by: Michael Halcrow <mhalcrow@us.ibm.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
122 lines
3.8 KiB
C
122 lines
3.8 KiB
C
/**
|
|
* 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>
|
|
*
|
|
* 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 "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);
|
|
salt[ECRYPTFS_SALT_SIZE * 2] = '\0';
|
|
ecryptfs_printk(KERN_DEBUG, " * salt = [%s]\n", salt);
|
|
if (auth_tok->token.password.flags &
|
|
ECRYPTFS_PERSISTENT_PASSWORD) {
|
|
ecryptfs_printk(KERN_DEBUG, " * persistent\n");
|
|
}
|
|
memcpy(sig, auth_tok->token.password.signature,
|
|
ECRYPTFS_SIG_SIZE_HEX);
|
|
sig[ECRYPTFS_SIG_SIZE_HEX] = '\0';
|
|
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)
|
|
{
|
|
int i = 0;
|
|
int add_newline = 1;
|
|
|
|
if (ecryptfs_verbosity < 1)
|
|
return;
|
|
if (bytes != 0) {
|
|
printk(KERN_DEBUG "0x%.2x.", (unsigned char)data[i]);
|
|
i++;
|
|
}
|
|
while (i < bytes) {
|
|
printk("0x%.2x.", (unsigned char)data[i]);
|
|
i++;
|
|
if (i % 16 == 0) {
|
|
printk("\n");
|
|
add_newline = 0;
|
|
} else
|
|
add_newline = 1;
|
|
}
|
|
if (add_newline)
|
|
printk("\n");
|
|
}
|
|
|