diff options
| -rw-r--r-- | include/net/mac802154.h | 19 | ||||
| -rw-r--r-- | net/ieee802154/6lowpan/rx.c | 2 |
2 files changed, 20 insertions, 1 deletions
diff --git a/include/net/mac802154.h b/include/net/mac802154.h index ec01b35bc969..d757edd0b0b7 100644 --- a/include/net/mac802154.h +++ b/include/net/mac802154.h @@ -346,6 +346,25 @@ static inline unsigned char *ieee802154_skb_src_pan(__le16 fc, } /** + * ieee802154_skb_is_intra_pan_addressing - checks whenever the mac addressing + * is an intra pan communication + * @fc: mac header frame control field + * @skb: skb where the source and destination pan should be get from + */ +static inline bool ieee802154_skb_is_intra_pan_addressing(__le16 fc, + const struct sk_buff *skb) +{ + unsigned char *dst_pan = ieee802154_skb_dst_pan(fc, skb), + *src_pan = ieee802154_skb_src_pan(fc, skb); + + /* if one is NULL is no intra pan addressing */ + if (!dst_pan || !src_pan) + return false; + + return !memcmp(dst_pan, src_pan, IEEE802154_PAN_ID_LEN); +} + +/** * ieee802154_be64_to_le64 - copies and convert be64 to le64 * @le64_dst: le64 destination pointer * @be64_src: be64 source pointer diff --git a/net/ieee802154/6lowpan/rx.c b/net/ieee802154/6lowpan/rx.c index ef185dd4110d..649e7d45e88f 100644 --- a/net/ieee802154/6lowpan/rx.c +++ b/net/ieee802154/6lowpan/rx.c @@ -262,7 +262,7 @@ static inline bool lowpan_rx_h_check(struct sk_buff *skb) /* check on ieee802154 conform 6LoWPAN header */ if (!ieee802154_is_data(fc) || - !ieee802154_is_intra_pan(fc)) + !ieee802154_skb_is_intra_pan_addressing(fc, skb)) return false; /* check if we can dereference the dispatch */ |