Commit a87815b7 authored by Miquel Raynal's avatar Miquel Raynal Committed by Stefan Schmidt
Browse files

ieee802154: hwsim: Record the address filter values 



As a first step, introduce a basic implementation for the
->set_hw_addr_filt() hook. In a second step, the values recorded here
will be used to perform proper filtering during reception.

Signed-off-by: default avatarMiquel Raynal <miquel.raynal@bootlin.com>
Acked-by: default avatarAlexander Aring <aahringo@redhat.com>
Link: https://lore.kernel.org/r/20221007085310.503366-5-miquel.raynal@bootlin.com


Signed-off-by: default avatarStefan Schmidt <stefan@datenfreihafen.org>
parent ac8037c3

drivers/net/ieee802154/mac802154_hwsim.c

+36 −0
Original line number Diff line number Diff line
@@ -47,6 +47,7 @@ static const struct genl_multicast_group hwsim_mcgrps[] = { 
struct hwsim_pib {

	u8 page;

	u8 channel;

	struct ieee802154_hw_addr_filt filt;



	struct rcu_head rcu;

};
@@ -101,6 +102,38 @@ static int hwsim_hw_channel(struct ieee802154_hw *hw, u8 page, u8 channel) 
	pib->channel = channel;



	pib_old = rtnl_dereference(phy->pib);



	pib->filt.short_addr = pib_old->filt.short_addr;

	pib->filt.pan_id = pib_old->filt.pan_id;

	pib->filt.ieee_addr = pib_old->filt.ieee_addr;

	pib->filt.pan_coord = pib_old->filt.pan_coord;



	rcu_assign_pointer(phy->pib, pib);

	kfree_rcu(pib_old, rcu);

	return 0;

}



static int hwsim_hw_addr_filt(struct ieee802154_hw *hw,

			      struct ieee802154_hw_addr_filt *filt,

			      unsigned long changed)

{

	struct hwsim_phy *phy = hw->priv;

	struct hwsim_pib *pib, *pib_old;



	pib = kzalloc(sizeof(*pib), GFP_KERNEL);

	if (!pib)

		return -ENOMEM;



	pib_old = rtnl_dereference(phy->pib);



	pib->page = pib_old->page;

	pib->channel = pib_old->channel;



	pib->filt.short_addr = filt->short_addr;

	pib->filt.pan_id = filt->pan_id;

	pib->filt.ieee_addr = filt->ieee_addr;

	pib->filt.pan_coord = filt->pan_coord;



	rcu_assign_pointer(phy->pib, pib);

	kfree_rcu(pib_old, rcu);

	return 0;
@@ -172,6 +205,7 @@ static const struct ieee802154_ops hwsim_ops = { 
	.start = hwsim_hw_start,

	.stop = hwsim_hw_stop,

	.set_promiscuous_mode = hwsim_set_promiscuous_mode,

	.set_hw_addr_filt = hwsim_hw_addr_filt,

};



static int hwsim_new_radio_nl(struct sk_buff *msg, struct genl_info *info)
@@ -787,6 +821,8 @@ static int hwsim_add_one(struct genl_info *info, struct device *dev, 
	}



	pib->channel = 13;

	pib->filt.short_addr = cpu_to_le16(IEEE802154_ADDR_BROADCAST);

	pib->filt.pan_id = cpu_to_le16(IEEE802154_PANID_BROADCAST);

	rcu_assign_pointer(phy->pib, pib);

	phy->idx = idx;

	INIT_LIST_HEAD(&phy->edges);