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ieee802154: add types for link-layer security

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The added structures match 802.15.4-2011 link-layer security PIBs as
closely as is reasonable. Some lists required by the standard were
modeled as bitmaps (frame_types and command_frame_ids in *llsec_key,
802.15.4-2011 7.5/Table 61), since using lists for those seems a bit
excessive and not particularly useful. The DeviceDescriptorHandleList
was inverted and is here a per-device list, since operations on this
list are likely to have both a key and a device at hand, and per-device
lists of keys are shorter than per-key lists of devices.

Signed-off-by: Phoebe Buckheister <phoebe.buckheister@itwm.fraunhofer.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Phoebe Buckheister 2014-05-16 17:46:35 +02:00 committed by David S. Miller
parent e54740e6d7
commit dc20759f28
1 changed files with 95 additions and 0 deletions
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95
include/net/ieee802154_netdev.h
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@ -242,6 +242,88 @@ static inline struct ieee802154_mac_cb *mac_cb_init(struct sk_buff *skb)
return mac_cb(skb);
}
#define IEEE802154_LLSEC_KEY_SIZE 16
struct ieee802154_llsec_key_id {
u8 mode;
u8 id;
union {
struct ieee802154_addr device_addr;
__le32 short_source;
__le64 extended_source;
};
};
struct ieee802154_llsec_key {
u8 frame_types;
u32 cmd_frame_ids;
u8 key[IEEE802154_LLSEC_KEY_SIZE];
};
struct ieee802154_llsec_key_entry {
struct list_head list;
struct ieee802154_llsec_key_id id;
struct ieee802154_llsec_key *key;
};
struct ieee802154_llsec_device_key {
struct list_head list;
struct ieee802154_llsec_key_id key_id;
u32 frame_counter;
};
enum {
IEEE802154_LLSEC_DEVKEY_IGNORE,
IEEE802154_LLSEC_DEVKEY_RESTRICT,
__IEEE802154_LLSEC_DEVKEY_MAX,
};
struct ieee802154_llsec_device {
struct list_head list;
__le16 pan_id;
__le16 short_addr;
__le64 hwaddr;
u32 frame_counter;
bool seclevel_exempt;
u8 key_mode;
struct list_head keys;
};
struct ieee802154_llsec_seclevel {
struct list_head list;
u8 frame_type;
u8 cmd_frame_id;
bool device_override;
u32 sec_levels;
};
struct ieee802154_llsec_params {
bool enabled;
__be32 frame_counter;
u8 out_level;
struct ieee802154_llsec_key_id out_key;
__le64 default_key_source;
__le16 pan_id;
__le64 hwaddr;
__le64 coord_hwaddr;
__le16 coord_shortaddr;
};
struct ieee802154_llsec_table {
struct list_head keys;
struct list_head devices;
struct list_head security_levels;
};
#define IEEE802154_MAC_SCAN_ED 0
#define IEEE802154_MAC_SCAN_ACTIVE 1
#define IEEE802154_MAC_SCAN_PASSIVE 2
@ -260,6 +342,19 @@ struct ieee802154_mac_params {
};
struct wpan_phy;
enum {
IEEE802154_LLSEC_PARAM_ENABLED = 1 << 0,
IEEE802154_LLSEC_PARAM_FRAME_COUNTER = 1 << 1,
IEEE802154_LLSEC_PARAM_OUT_LEVEL = 1 << 2,
IEEE802154_LLSEC_PARAM_OUT_KEY = 1 << 3,
IEEE802154_LLSEC_PARAM_KEY_SOURCE = 1 << 4,
IEEE802154_LLSEC_PARAM_PAN_ID = 1 << 5,
IEEE802154_LLSEC_PARAM_HWADDR = 1 << 6,
IEEE802154_LLSEC_PARAM_COORD_HWADDR = 1 << 7,
IEEE802154_LLSEC_PARAM_COORD_SHORTADDR = 1 << 8,
};
/*
* This should be located at net_device->ml_priv
*