/**
 * 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");
}

ue='20'>20</option><option value='25'>25</option><option value='30'>30</option><option value='35'>35</option><option value='40'>40</option></select></td></tr><tr><td class='label'>space:</td><td class='ctrl'><select name='ignorews' onchange='this.form.submit();'><option value='0' selected='selected'>include</option><option value='1'>ignore</option></select></td></tr><tr><td class='label'>mode:</td><td class='ctrl'><select name='dt' onchange='this.form.submit();'><option value='0' selected='selected'>unified</option><option value='1'>ssdiff</option><option value='2'>stat only</option></select></td></tr><tr><td/><td class='ctrl'><noscript><input type='submit' value='reload'/></noscript></td></tr></table></form></div><table summary='commit info' class='commit-info'>
<tr><th>author</th><td>Vincent &lt;vincent.stehle@laposte.net&gt;</td><td class='right'>2017-01-30 15:06:43 +0100</td></tr>
<tr><th>committer</th><td>David S. Miller &lt;davem@davemloft.net&gt;</td><td class='right'>2017-01-31 13:07:40 -0500</td></tr>
<tr><th>commit</th><td colspan='2' class='oid'><a href='/cgit.cgi/linux/net-next.git/commit/fs/xfs/libxfs/xfs_refcount.h?id=c73e44269369e936165f0f9b61f1f09a11dae01c'>c73e44269369e936165f0f9b61f1f09a11dae01c</a> (<a href='/cgit.cgi/linux/net-next.git/patch/fs/xfs/libxfs/xfs_refcount.h?id=c73e44269369e936165f0f9b61f1f09a11dae01c'>patch</a>)</td></tr>
<tr><th>tree</th><td colspan='2' class='oid'><a href='/cgit.cgi/linux/net-next.git/tree/?id=c73e44269369e936165f0f9b61f1f09a11dae01c'>e2188e900ba06302f8ed2746cb07edd3efbc5c35</a> /<a href='/cgit.cgi/linux/net-next.git/tree/fs/xfs/libxfs/xfs_refcount.h?id=c73e44269369e936165f0f9b61f1f09a11dae01c'>fs/xfs/libxfs/xfs_refcount.h</a></td></tr>
<tr><th>parent</th><td colspan='2' class='oid'><a href='/cgit.cgi/linux/net-next.git/commit/fs/xfs/libxfs/xfs_refcount.h?id=040587af31228d82c52267f717c9fcdb65f36335'>040587af31228d82c52267f717c9fcdb65f36335</a> (<a href='/cgit.cgi/linux/net-next.git/diff/fs/xfs/libxfs/xfs_refcount.h?id=c73e44269369e936165f0f9b61f1f09a11dae01c&amp;id2=040587af31228d82c52267f717c9fcdb65f36335'>diff</a>)</td></tr></table>
<div class='commit-subject'>net: thunderx: avoid dereferencing xcv when NULL</div><div class='commit-msg'>This fixes the following smatch and coccinelle warnings:

  drivers/net/ethernet/cavium/thunder/thunder_xcv.c:119 xcv_setup_link() error: we previously assumed 'xcv' could be null (see line 118) [smatch]
  drivers/net/ethernet/cavium/thunder/thunder_xcv.c:119:16-20: ERROR: xcv is NULL but dereferenced. [coccinelle]

Fixes: 6465859aba1e66a5 ("net: thunderx: Add RGMII interface type support")
Signed-off-by: Vincent Stehlé &lt;vincent.stehle@laposte.net&gt;
Cc: Sunil Goutham &lt;sgoutham@cavium.com&gt;
Signed-off-by: David S. Miller &lt;davem@davemloft.net&gt;
</div><div class='diffstat-header'><a href='/cgit.cgi/linux/net-next.git/diff/?id=c73e44269369e936165f0f9b61f1f09a11dae01c'>Diffstat</a> (limited to 'fs/xfs/libxfs/xfs_refcount.h')</div><table summary='diffstat' class='diffstat'>