32 void ovpn_crypto_state_release(struct ovpn_crypto_state *cs)  in ovpn_crypto_state_release()  argument
36 	ks = rcu_access_pointer(cs->slots[0]);  in ovpn_crypto_state_release()
38 		RCU_INIT_POINTER(cs->slots[0], NULL);  in ovpn_crypto_state_release()
42 	ks = rcu_access_pointer(cs->slots[1]);  in ovpn_crypto_state_release()
44 		RCU_INIT_POINTER(cs->slots[1], NULL);  in ovpn_crypto_state_release()
50 bool ovpn_crypto_kill_key(struct ovpn_crypto_state *cs, u8 key_id)  in ovpn_crypto_kill_key()  argument
56 	spin_lock_bh(&cs->lock);  in ovpn_crypto_kill_key()
57 	tmp = rcu_access_pointer(cs->slots[slot]);  in ovpn_crypto_kill_key()
60 		tmp = rcu_access_pointer(cs->slots[slot]);  in ovpn_crypto_kill_key()
64 		ks = rcu_replace_pointer(cs->slots[slot], NULL,  in ovpn_crypto_kill_key()
65 					 lockdep_is_held(&cs->lock));  in ovpn_crypto_kill_key()
66 	spin_unlock_bh(&cs->lock);  in ovpn_crypto_kill_key()
78 int ovpn_crypto_state_reset(struct ovpn_crypto_state *cs,  in ovpn_crypto_state_reset()  argument
92 	spin_lock_bh(&cs->lock);  in ovpn_crypto_state_reset()
93 	idx = cs->primary_idx;  in ovpn_crypto_state_reset()
96 		old = rcu_replace_pointer(cs->slots[idx], new,  in ovpn_crypto_state_reset()
97 					  lockdep_is_held(&cs->lock));  in ovpn_crypto_state_reset()
100 		old = rcu_replace_pointer(cs->slots[!idx], new,  in ovpn_crypto_state_reset()
101 					  lockdep_is_held(&cs->lock));  in ovpn_crypto_state_reset()
104 	spin_unlock_bh(&cs->lock);  in ovpn_crypto_state_reset()
112 void ovpn_crypto_key_slot_delete(struct ovpn_crypto_state *cs,  in ovpn_crypto_key_slot_delete()  argument
124 	spin_lock_bh(&cs->lock);  in ovpn_crypto_key_slot_delete()
125 	idx = cs->primary_idx;  in ovpn_crypto_key_slot_delete()
128 		ks = rcu_replace_pointer(cs->slots[idx], NULL,  in ovpn_crypto_key_slot_delete()
129 					 lockdep_is_held(&cs->lock));  in ovpn_crypto_key_slot_delete()
132 		ks = rcu_replace_pointer(cs->slots[!idx], NULL,  in ovpn_crypto_key_slot_delete()
133 					 lockdep_is_held(&cs->lock));  in ovpn_crypto_key_slot_delete()
136 	spin_unlock_bh(&cs->lock);  in ovpn_crypto_key_slot_delete()
147 void ovpn_crypto_key_slots_swap(struct ovpn_crypto_state *cs)  in ovpn_crypto_key_slots_swap()  argument
152 	spin_lock_bh(&cs->lock);  in ovpn_crypto_key_slots_swap()
153 	idx = cs->primary_idx;  in ovpn_crypto_key_slots_swap()
154 	old_primary = rcu_dereference_protected(cs->slots[idx],  in ovpn_crypto_key_slots_swap()
155 						lockdep_is_held(&cs->lock));  in ovpn_crypto_key_slots_swap()
156 	old_secondary = rcu_dereference_protected(cs->slots[!idx],  in ovpn_crypto_key_slots_swap()
157 						  lockdep_is_held(&cs->lock));  in ovpn_crypto_key_slots_swap()
159 	WRITE_ONCE(cs->primary_idx, !cs->primary_idx);  in ovpn_crypto_key_slots_swap()
165 	spin_unlock_bh(&cs->lock);  in ovpn_crypto_key_slots_swap()
170  * @cs: the crypto state to extract the key data from
176 int ovpn_crypto_config_get(struct ovpn_crypto_state *cs,  in ovpn_crypto_config_get()  argument
185 		idx = cs->primary_idx;  in ovpn_crypto_config_get()
188 		idx = !cs->primary_idx;  in ovpn_crypto_config_get()
195 	ks = rcu_dereference(cs->slots[idx]);  in ovpn_crypto_config_get()