From cb904b0a16305f9b2a98200cc6eb9dc3610278b0 Mon Sep 17 00:00:00 2001 From: Alexander Aring Date: Sun, 2 Nov 2014 04:18:45 +0100 Subject: [PATCH] ieee802154: add extended address validation helper This patch introduce an extended address validation helper to check if an extended address is valid or not. Signed-off-by: Alexander Aring Signed-off-by: Marcel Holtmann --- include/linux/ieee802154.h | 14 ++++++++++++++ 1 file changed, 14 insertions(+) diff --git a/include/linux/ieee802154.h b/include/linux/ieee802154.h index 6e50a2a1d485..9bba5ca7f0ad 100644 --- a/include/linux/ieee802154.h +++ b/include/linux/ieee802154.h @@ -197,4 +197,18 @@ static inline bool ieee802154_is_valid_psdu_len(const u8 len) return (len >= IEEE802154_MIN_PSDU_LEN && len <= IEEE802154_MTU); } +/** + * ieee802154_is_valid_psdu_len - check if extended addr is valid + * @addr: extended addr to check + */ +static inline bool ieee802154_is_valid_extended_addr(const __le64 addr) +{ + /* These EUI-64 addresses are reserved by IEEE. 0xffffffffffffffff + * is used internally as extended to short address broadcast mapping. + * This is currently a workaround because neighbor discovery can't + * deal with short addresses types right now. + */ + return ((addr != 0x0000000000000000) || (addr != 0xffffffffffffffff)); +} + #endif /* LINUX_IEEE802154_H */