Revision be7635e7287e0e8013af3c89a6354a9e0182594c authored by Alexander Potapenko on 25 March 2016, 21:22:05 UTC, committed by Linus Torvalds on 25 March 2016, 23:37:42 UTC
KASAN needs to know whether the allocation happens in an IRQ handler. This lets us strip everything below the IRQ entry point to reduce the number of unique stack traces needed to be stored. Move the definition of __irq_entry to <linux/interrupt.h> so that the users don't need to pull in <linux/ftrace.h>. Also introduce the __softirq_entry macro which is similar to __irq_entry, but puts the corresponding functions to the .softirqentry.text section. Signed-off-by: Alexander Potapenko <glider@google.com> Acked-by: Steven Rostedt <rostedt@goodmis.org> Cc: Christoph Lameter <cl@linux.com> Cc: Pekka Enberg <penberg@kernel.org> Cc: David Rientjes <rientjes@google.com> Cc: Joonsoo Kim <iamjoonsoo.kim@lge.com> Cc: Andrey Konovalov <adech.fo@gmail.com> Cc: Dmitry Vyukov <dvyukov@google.com> Cc: Andrey Ryabinin <ryabinin.a.a@gmail.com> Cc: Konstantin Serebryany <kcc@google.com> Cc: Dmitry Chernenkov <dmitryc@google.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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llsec.h
/*
* Copyright (C) 2014 Fraunhofer ITWM
*
* 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.
*
* 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.
*
* Written by:
* Phoebe Buckheister <phoebe.buckheister@itwm.fraunhofer.de>
*/
#ifndef MAC802154_LLSEC_H
#define MAC802154_LLSEC_H
#include <linux/slab.h>
#include <linux/hashtable.h>
#include <linux/kref.h>
#include <linux/spinlock.h>
#include <net/af_ieee802154.h>
#include <net/ieee802154_netdev.h>
struct mac802154_llsec_key {
struct ieee802154_llsec_key key;
/* one tfm for each authsize (4/8/16) */
struct crypto_aead *tfm[3];
struct crypto_skcipher *tfm0;
struct kref ref;
};
struct mac802154_llsec_device_key {
struct ieee802154_llsec_device_key devkey;
struct rcu_head rcu;
};
struct mac802154_llsec_device {
struct ieee802154_llsec_device dev;
struct hlist_node bucket_s;
struct hlist_node bucket_hw;
/* protects dev.frame_counter and the elements of dev.keys */
spinlock_t lock;
struct rcu_head rcu;
};
struct mac802154_llsec_seclevel {
struct ieee802154_llsec_seclevel level;
struct rcu_head rcu;
};
struct mac802154_llsec {
struct ieee802154_llsec_params params;
struct ieee802154_llsec_table table;
DECLARE_HASHTABLE(devices_short, 6);
DECLARE_HASHTABLE(devices_hw, 6);
/* protects params, all other fields are fine with RCU */
rwlock_t lock;
};
void mac802154_llsec_init(struct mac802154_llsec *sec);
void mac802154_llsec_destroy(struct mac802154_llsec *sec);
int mac802154_llsec_get_params(struct mac802154_llsec *sec,
struct ieee802154_llsec_params *params);
int mac802154_llsec_set_params(struct mac802154_llsec *sec,
const struct ieee802154_llsec_params *params,
int changed);
int mac802154_llsec_key_add(struct mac802154_llsec *sec,
const struct ieee802154_llsec_key_id *id,
const struct ieee802154_llsec_key *key);
int mac802154_llsec_key_del(struct mac802154_llsec *sec,
const struct ieee802154_llsec_key_id *key);
int mac802154_llsec_dev_add(struct mac802154_llsec *sec,
const struct ieee802154_llsec_device *dev);
int mac802154_llsec_dev_del(struct mac802154_llsec *sec,
__le64 device_addr);
int mac802154_llsec_devkey_add(struct mac802154_llsec *sec,
__le64 dev_addr,
const struct ieee802154_llsec_device_key *key);
int mac802154_llsec_devkey_del(struct mac802154_llsec *sec,
__le64 dev_addr,
const struct ieee802154_llsec_device_key *key);
int mac802154_llsec_seclevel_add(struct mac802154_llsec *sec,
const struct ieee802154_llsec_seclevel *sl);
int mac802154_llsec_seclevel_del(struct mac802154_llsec *sec,
const struct ieee802154_llsec_seclevel *sl);
int mac802154_llsec_encrypt(struct mac802154_llsec *sec, struct sk_buff *skb);
int mac802154_llsec_decrypt(struct mac802154_llsec *sec, struct sk_buff *skb);
#endif /* MAC802154_LLSEC_H */
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