Orange Pi5 kernel

^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  1) /* SPDX-License-Identifier: GPL-2.0-only */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  2) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  3)  * Copyright (C) 2014 Fraunhofer ITWM
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  4)  *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  5)  * Written by:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  6)  * Phoebe Buckheister <phoebe.buckheister@itwm.fraunhofer.de>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  7)  */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  8) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  9) #ifndef MAC802154_LLSEC_H
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 10) #define MAC802154_LLSEC_H
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 11) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 12) #include <linux/slab.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 13) #include <linux/hashtable.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 14) #include <linux/kref.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 15) #include <linux/spinlock.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 16) #include <net/af_ieee802154.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 17) #include <net/ieee802154_netdev.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 18) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 19) struct mac802154_llsec_key {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 20) 	struct ieee802154_llsec_key key;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 21) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 22) 	/* one tfm for each authsize (4/8/16) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 23) 	struct crypto_aead *tfm[3];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 24) 	struct crypto_sync_skcipher *tfm0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 25) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 26) 	struct kref ref;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 27) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 28) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 29) struct mac802154_llsec_device_key {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 30) 	struct ieee802154_llsec_device_key devkey;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 31) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 32) 	struct rcu_head rcu;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 33) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 34) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 35) struct mac802154_llsec_device {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 36) 	struct ieee802154_llsec_device dev;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 37) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 38) 	struct hlist_node bucket_s;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 39) 	struct hlist_node bucket_hw;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 40) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 41) 	/* protects dev.frame_counter and the elements of dev.keys */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 42) 	spinlock_t lock;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 43) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 44) 	struct rcu_head rcu;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 45) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 46) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 47) struct mac802154_llsec_seclevel {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 48) 	struct ieee802154_llsec_seclevel level;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 49) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 50) 	struct rcu_head rcu;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 51) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 52) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 53) struct mac802154_llsec {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 54) 	struct ieee802154_llsec_params params;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 55) 	struct ieee802154_llsec_table table;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 56) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 57) 	DECLARE_HASHTABLE(devices_short, 6);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 58) 	DECLARE_HASHTABLE(devices_hw, 6);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 59) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 60) 	/* protects params, all other fields are fine with RCU */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 61) 	rwlock_t lock;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 62) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 63) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 64) void mac802154_llsec_init(struct mac802154_llsec *sec);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 65) void mac802154_llsec_destroy(struct mac802154_llsec *sec);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 66) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 67) int mac802154_llsec_get_params(struct mac802154_llsec *sec,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 68) 			       struct ieee802154_llsec_params *params);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 69) int mac802154_llsec_set_params(struct mac802154_llsec *sec,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 70) 			       const struct ieee802154_llsec_params *params,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 71) 			       int changed);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 72) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 73) int mac802154_llsec_key_add(struct mac802154_llsec *sec,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 74) 			    const struct ieee802154_llsec_key_id *id,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 75) 			    const struct ieee802154_llsec_key *key);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 76) int mac802154_llsec_key_del(struct mac802154_llsec *sec,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 77) 			    const struct ieee802154_llsec_key_id *key);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 78) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 79) int mac802154_llsec_dev_add(struct mac802154_llsec *sec,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 80) 			    const struct ieee802154_llsec_device *dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 81) int mac802154_llsec_dev_del(struct mac802154_llsec *sec,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 82) 			    __le64 device_addr);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 83) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 84) int mac802154_llsec_devkey_add(struct mac802154_llsec *sec,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 85) 			       __le64 dev_addr,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 86) 			       const struct ieee802154_llsec_device_key *key);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 87) int mac802154_llsec_devkey_del(struct mac802154_llsec *sec,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 88) 			       __le64 dev_addr,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 89) 			       const struct ieee802154_llsec_device_key *key);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 90) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 91) int mac802154_llsec_seclevel_add(struct mac802154_llsec *sec,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 92) 				 const struct ieee802154_llsec_seclevel *sl);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 93) int mac802154_llsec_seclevel_del(struct mac802154_llsec *sec,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 94) 				 const struct ieee802154_llsec_seclevel *sl);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 95) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 96) int mac802154_llsec_encrypt(struct mac802154_llsec *sec, struct sk_buff *skb);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 97) int mac802154_llsec_decrypt(struct mac802154_llsec *sec, struct sk_buff *skb);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 98) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 99) #endif /* MAC802154_LLSEC_H */