From 506ada89629ec7059b96ecfb0dc7d33ece0103ca Mon Sep 17 00:00:00 2001 From: Eduard Zingerman Date: Fri, 4 Sep 2026 17:05:56 -0700 Subject: bpf: mark a NULL kfunc argument precise check_kfunc_arg() allows bpf_register_is_null() for nullable arguments w/o marking the underlying scalar register precise. Hence a checkpoint created on such a path would prune against arbitrary scalar value. Fixes: 3bda08b63670 ("bpf: Allow NULL buffers in bpf_dynptr_slice(_rw)") Signed-off-by: Eduard Zingerman Link: https://lore.kernel.org/r/20260904-register-is-null-precise-fixes-v1-5-0f5a360ff15d@gmail.com Signed-off-by: Alexei Starovoitov --- net/mac802154/llsec.h | 99 +++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 99 insertions(+) create mode 100644 net/mac802154/llsec.h (limited to 'net/mac802154/llsec.h') diff --git a/net/mac802154/llsec.h b/net/mac802154/llsec.h new file mode 100644 index 000000000..ddeb79228 --- /dev/null +++ b/net/mac802154/llsec.h @@ -0,0 +1,99 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ +/* + * Copyright (C) 2014 Fraunhofer ITWM + * + * Written by: + * Phoebe Buckheister + */ + +#ifndef MAC802154_LLSEC_H +#define MAC802154_LLSEC_H + +#include +#include +#include +#include +#include +#include + +struct mac802154_llsec_key { + struct ieee802154_llsec_key key; + + /* one tfm for each authsize (4/8/16) */ + struct crypto_aead *tfm[3]; + struct crypto_sync_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 */ -- cgit v1.3.1