/*
 * ecryptfs_format.c: helper functions for the encrypted key type
 *
 * Copyright (C) 2006 International Business Machines Corp.
 * Copyright (C) 2010 Politecnico di Torino, Italy
 *                    TORSEC group -- http://security.polito.it
 *
 * Authors:
 * Michael A. Halcrow <mahalcro@us.ibm.com>
 * Tyler Hicks <tyhicks@ou.edu>
 * Roberto Sassu <roberto.sassu@polito.it>
 *
 * 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, version 2 of the License.
 */

#include <linux/module.h>
#include "ecryptfs_format.h"

u8 *ecryptfs_get_auth_tok_key(struct ecryptfs_auth_tok *auth_tok)
{
	return auth_tok->token.password.session_key_encryption_key;
}
EXPORT_SYMBOL(ecryptfs_get_auth_tok_key);

/*
 * ecryptfs_get_versions()
 *
 * Source code taken from the software 'ecryptfs-utils' version 83.
 *
 */
void ecryptfs_get_versions(int *major, int *minor, int *file_version)
{
	*major = ECRYPTFS_VERSION_MAJOR;
	*minor = ECRYPTFS_VERSION_MINOR;
	if (file_version)
		*file_version = ECRYPTFS_SUPPORTED_FILE_VERSION;
}
EXPORT_SYMBOL(ecryptfs_get_versions);

/*
 * ecryptfs_fill_auth_tok - fill the ecryptfs_auth_tok structure
 *
 * Fill the ecryptfs_auth_tok structure with required ecryptfs data.
 * The source code is inspired to the original function generate_payload()
 * shipped with the software 'ecryptfs-utils' version 83.
 *
 */
int ecryptfs_fill_auth_tok(struct ecryptfs_auth_tok *auth_tok,
			   const char *key_desc)
{
	int major, minor;

	ecryptfs_get_versions(&major, &minor, NULL);
	auth_tok->version = (((uint16_t)(major << 8) & 0xFF00)
			     | ((uint16_t)minor & 0x00FF));
	auth_tok->token_type = ECRYPTFS_PASSWORD;
	strncpy((char *)auth_tok->token.password.signature, key_desc,
		ECRYPTFS_PASSWORD_SIG_SIZE);
	auth_tok->token.password.session_key_encryption_key_bytes =
		ECRYPTFS_MAX_KEY_BYTES;
	/*
	 * Removed auth_tok->token.password.salt and
	 * auth_tok->token.password.session_key_encryption_key
	 * initialization from the original code
	 */
	/* TODO: Make the hash parameterizable via policy */
	auth_tok->token.password.flags |=
		ECRYPTFS_SESSION_KEY_ENCRYPTION_KEY_SET;
	/* The kernel code will encrypt the session key. */
	auth_tok->session_key.encrypted_key[0] = 0;
	auth_tok->session_key.encrypted_key_size = 0;
	/* Default; subject to change by kernel eCryptfs */
	auth_tok->token.password.hash_algo = PGP_DIGEST_ALGO_SHA512;
	auth_tok->token.password.flags &= ~(ECRYPTFS_PERSISTENT_PASSWORD);
	return 0;
}
EXPORT_SYMBOL(ecryptfs_fill_auth_tok);

MODULE_LICENSE("GPL");
/table>
<div class='path'>path: <a href='/cgit.cgi/linux/net-next.git/log/?id=9dd7f8907c3705dc7a7a375d1c6e30b06e6daffc'>root</a>/<a href='/cgit.cgi/linux/net-next.git/log/tools?id=9dd7f8907c3705dc7a7a375d1c6e30b06e6daffc'>tools</a>/<a href='/cgit.cgi/linux/net-next.git/log/tools/perf?id=9dd7f8907c3705dc7a7a375d1c6e30b06e6daffc'>perf</a>/<a href='/cgit.cgi/linux/net-next.git/log/tools/perf/util?id=9dd7f8907c3705dc7a7a375d1c6e30b06e6daffc'>util</a>/<a href='/cgit.cgi/linux/net-next.git/log/tools/perf/util/evsel_fprintf.c?id=9dd7f8907c3705dc7a7a375d1c6e30b06e6daffc'>evsel_fprintf.c</a></div><div class='content'><table class='list nowrap'><tr class='nohover'><th class='left'>Age</th><th class='left'>Commit message (<a href='/cgit.cgi/linux/net-next.git/log/tools/perf/util/evsel_fprintf.c?id=9dd7f8907c3705dc7a7a375d1c6e30b06e6daffc&amp;showmsg=1'>Expand</a>)</th><th class='left'>Author</th><th class='left'>Files</th><th class='left'>Lines</th></tr>
 value='8'>8</option><option value='9'>9</option><option value='10'>10</option><option value='15'>15</option><option value='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>Christoph Hellwig &lt;hch@lst.de&gt;</td><td class='right'>2017-01-30 13:15:41 +0100</td></tr>
<tr><th>committer</th><td>Bjorn Helgaas &lt;bhelgaas@google.com&gt;</td><td class='right'>2017-02-02 10:35:46 -0600</td></tr>
<tr><th>commit</th><td colspan='2' class='oid'><a href='/cgit.cgi/linux/net-next.git/commit/net/tipc/Kconfig?id=dfef358bd1beb4e7b5c94eca944be9cd23dfc752'>dfef358bd1beb4e7b5c94eca944be9cd23dfc752</a> (<a href='/cgit.cgi/linux/net-next.git/patch/net/tipc/Kconfig?id=dfef358bd1beb4e7b5c94eca944be9cd23dfc752'>patch</a>)</td></tr>
<tr><th>tree</th><td colspan='2' class='oid'><a href='/cgit.cgi/linux/net-next.git/tree/?id=dfef358bd1beb4e7b5c94eca944be9cd23dfc752'>b9a2afb38a4c2ac8ad31f49ec0d71fe9e5b1994c</a> /<a href='/cgit.cgi/linux/net-next.git/tree/net/tipc/Kconfig?id=dfef358bd1beb4e7b5c94eca944be9cd23dfc752'>net/tipc/Kconfig</a></td></tr>
<tr><th>parent</th><td colspan='2' class='oid'><a href='/cgit.cgi/linux/net-next.git/commit/net/tipc/Kconfig?id=030305d69fc6963c16003f50d7e8d74b02d0a143'>030305d69fc6963c16003f50d7e8d74b02d0a143</a> (<a href='/cgit.cgi/linux/net-next.git/diff/net/tipc/Kconfig?id=dfef358bd1beb4e7b5c94eca944be9cd23dfc752&amp;id2=030305d69fc6963c16003f50d7e8d74b02d0a143'>diff</a>)</td></tr></table>
<div class='commit-subject'>PCI/MSI: Don't apply affinity if there aren't enough vectors left</div><div class='commit-msg'>Bart reported a problem wіth an out of bounds access in the low-level IRQ
affinity code, which we root caused to the qla2xxx driver assigning all its
MSI-X vectors to the pre and post vectors, and not having any left for the
actually spread IRQs.

Fix this issue by not asking for affinity assignment when there are no
vectors to assign left.

Fixes: 402723ad5c62 ("PCI/MSI: Provide pci_alloc_irq_vectors_affinity()")
Link: https://lkml.kernel.org/r/1485359225.3093.3.camel@sandisk.com
Reported-by: Bart Van Assche &lt;bart.vanassche@sandisk.com&gt;
Tested-by: Bart Van Assche &lt;bart.vanassche@sandisk.com&gt;
Signed-off-by: Christoph Hellwig &lt;hch@lst.de&gt;
Signed-off-by: Bjorn Helgaas &lt;bhelgaas@google.com&gt;</div><div class='diffstat-header'><a href='/cgit.cgi/linux/net-next.git/diff/?id=dfef358bd1beb4e7b5c94eca944be9cd23dfc752'>Diffstat</a> (limited to 'net/tipc/Kconfig')</div><table summary='diffstat' class='diffstat'>