/*
 * OCB mode implementation
 *
 * Copyright: (c) 2014 Czech Technical University in Prague
 *            (c) 2014 Volkswagen Group Research
 * Author:    Rostislav Lisovy <rostislav.lisovy@fel.cvut.cz>
 * Funded by: Volkswagen Group Research
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License version 2 as
 * published by the Free Software Foundation.
 */

#include <linux/ieee80211.h>
#include <net/cfg80211.h>
#include "nl80211.h"
#include "core.h"
#include "rdev-ops.h"

int __cfg80211_join_ocb(struct cfg80211_registered_device *rdev,
			struct net_device *dev,
			struct ocb_setup *setup)
{
	struct wireless_dev *wdev = dev->ieee80211_ptr;
	int err;

	ASSERT_WDEV_LOCK(wdev);

	if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_OCB)
		return -EOPNOTSUPP;

	if (!rdev->ops->join_ocb)
		return -EOPNOTSUPP;

	if (WARN_ON(!setup->chandef.chan))
		return -EINVAL;

	err = rdev_join_ocb(rdev, dev, setup);
	if (!err)
		wdev->chandef = setup->chandef;

	return err;
}

int cfg80211_join_ocb(struct cfg80211_registered_device *rdev,
		      struct net_device *dev,
		      struct ocb_setup *setup)
{
	struct wireless_dev *wdev = dev->ieee80211_ptr;
	int err;

	wdev_lock(wdev);
	err = __cfg80211_join_ocb(rdev, dev, setup);
	wdev_unlock(wdev);

	return err;
}

int __cfg80211_leave_ocb(struct cfg80211_registered_device *rdev,
			 struct net_device *dev)
{
	struct wireless_dev *wdev = dev->ieee80211_ptr;
	int err;

	ASSERT_WDEV_LOCK(wdev);

	if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_OCB)
		return -EOPNOTSUPP;

	if (!rdev->ops->leave_ocb)
		return -EOPNOTSUPP;

	err = rdev_leave_ocb(rdev, dev);
	if (!err)
		memset(&wdev->chandef, 0, sizeof(wdev->chandef));

	return err;
}

int cfg80211_leave_ocb(struct cfg80211_registered_device *rdev,
		       struct net_device *dev)
{
	struct wireless_dev *wdev = dev->ieee80211_ptr;
	int err;

	wdev_lock(wdev);
	err = __cfg80211_leave_ocb(rdev, dev);
	wdev_unlock(wdev);

	return err;
}
h?h=nds-private-remove&amp;id=4b40571eaf423b96e3809006bd192b4efd52a64b'>commit</a><a href='/cgit.cgi/linux/net-next.git/diff/drivers/usb/dwc2/hw.h?h=nds-private-remove&amp;id=4b40571eaf423b96e3809006bd192b4efd52a64b'>diff</a></td><td class='form'><form class='right' method='get' action='/cgit.cgi/linux/net-next.git/log/drivers/usb/dwc2/hw.h'>
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<div class='path'>path: <a href='/cgit.cgi/linux/net-next.git/log/?h=nds-private-remove&amp;id=4b40571eaf423b96e3809006bd192b4efd52a64b'>root</a>/<a href='/cgit.cgi/linux/net-next.git/log/drivers?h=nds-private-remove&amp;id=4b40571eaf423b96e3809006bd192b4efd52a64b'>drivers</a>/<a href='/cgit.cgi/linux/net-next.git/log/drivers/usb?h=nds-private-remove&amp;id=4b40571eaf423b96e3809006bd192b4efd52a64b'>usb</a>/<a href='/cgit.cgi/linux/net-next.git/log/drivers/usb/dwc2?h=nds-private-remove&amp;id=4b40571eaf423b96e3809006bd192b4efd52a64b'>dwc2</a>/<a href='/cgit.cgi/linux/net-next.git/log/drivers/usb/dwc2/hw.h?h=nds-private-remove&amp;id=4b40571eaf423b96e3809006bd192b4efd52a64b'>hw.h</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/drivers/usb/dwc2/hw.h?h=nds-private-remove&amp;id=4b40571eaf423b96e3809006bd192b4efd52a64b&amp;showmsg=1'>Expand</a>)</th><th class='left'>Author</th><th class='left'>Files</th><th class='left'>Lines</th></tr>
r><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>Harsh Jain &lt;harsh@chelsio.com&gt;</td><td class='right'>2017-02-01 21:10:28 +0530</td></tr>
<tr><th>committer</th><td>Herbert Xu &lt;herbert@gondor.apana.org.au&gt;</td><td class='right'>2017-02-03 17:45:48 +0800</td></tr>
<tr><th>commit</th><td colspan='2' class='oid'><a href='/cgit.cgi/linux/net-next.git/commit/net/sctp/protocol.c?id=0b529f143e8baad441a5aac9ad55ec2434d8fb46'>0b529f143e8baad441a5aac9ad55ec2434d8fb46</a> (<a href='/cgit.cgi/linux/net-next.git/patch/net/sctp/protocol.c?id=0b529f143e8baad441a5aac9ad55ec2434d8fb46'>patch</a>)</td></tr>
<tr><th>tree</th><td colspan='2' class='oid'><a href='/cgit.cgi/linux/net-next.git/tree/?id=0b529f143e8baad441a5aac9ad55ec2434d8fb46'>fd816e548e12745d4776ad0bd661bec142d3ea06</a> /<a href='/cgit.cgi/linux/net-next.git/tree/net/sctp/protocol.c?id=0b529f143e8baad441a5aac9ad55ec2434d8fb46'>net/sctp/protocol.c</a></td></tr>
<tr><th>parent</th><td colspan='2' class='oid'><a href='/cgit.cgi/linux/net-next.git/commit/net/sctp/protocol.c?id=c26819900036f5b91608051a0fc7c76f6b4ffc7b'>c26819900036f5b91608051a0fc7c76f6b4ffc7b</a> (<a href='/cgit.cgi/linux/net-next.git/diff/net/sctp/protocol.c?id=0b529f143e8baad441a5aac9ad55ec2434d8fb46&amp;id2=c26819900036f5b91608051a0fc7c76f6b4ffc7b'>diff</a>)</td></tr></table>
<div class='commit-subject'>crypto: algif_aead - Fix kernel panic on list_del</div><div class='commit-msg'>Kernel panics when userspace program try to access AEAD interface.
Remove node from Linked List before freeing its memory.

Cc: &lt;stable@vger.kernel.org&gt;
Signed-off-by: Harsh Jain &lt;harsh@chelsio.com&gt;
Reviewed-by: Stephan Müller &lt;smueller@chronox.de&gt;
Signed-off-by: Herbert Xu &lt;herbert@gondor.apana.org.au&gt;
</div><div class='diffstat-header'><a href='/cgit.cgi/linux/net-next.git/diff/?id=0b529f143e8baad441a5aac9ad55ec2434d8fb46'>Diffstat</a> (limited to 'net/sctp/protocol.c')</div><table summary='diffstat' class='diffstat'>