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authorAlexander Aring <aar@pengutronix.de>2016-07-07 00:32:24 +0300
committerMarcel Holtmann <marcel@holtmann.org>2016-07-08 14:23:12 +0300
commit9cc577dd25b9762df7f353658426bb2e048c480a (patch)
treeb329c6b34b7691e64c5161407e26fbf2d1ddca43 /include/linux/ieee802154.h
parent47ca5898eb09bc49666958f2ea7e0ea5b4add0f5 (diff)
downloadlinux-9cc577dd25b9762df7f353658426bb2e048c480a.tar.xz
ieee802154: add ieee802154_skb_dst_pan helper
This patch adds ieee802154_skb_dst_pan function to get the pointer address of the destination pan id at skb mac pointer. Signed-off-by: Alexander Aring <aar@pengutronix.de> Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Diffstat (limited to 'include/linux/ieee802154.h')
-rw-r--r--include/linux/ieee802154.h16
1 files changed, 16 insertions, 0 deletions
diff --git a/include/linux/ieee802154.h b/include/linux/ieee802154.h
index acedbb68a5a3..91f4665fea63 100644
--- a/include/linux/ieee802154.h
+++ b/include/linux/ieee802154.h
@@ -31,6 +31,8 @@
#define IEEE802154_MIN_PSDU_LEN 9
#define IEEE802154_FCS_LEN 2
#define IEEE802154_MAX_AUTH_TAG_LEN 16
+#define IEEE802154_FC_LEN 2
+#define IEEE802154_SEQ_LEN 1
/* General MAC frame format:
* 2 bytes: Frame Control
@@ -221,9 +223,14 @@ enum {
#define IEEE802154_FCTL_ACKREQ 0x0020
#define IEEE802154_FCTL_SECEN 0x0004
#define IEEE802154_FCTL_INTRA_PAN 0x0040
+#define IEEE802154_FCTL_DADDR 0x0c00
#define IEEE802154_FTYPE_DATA 0x0001
+#define IEEE802154_FCTL_ADDR_NONE 0x0000
+#define IEEE802154_FCTL_DADDR_SHORT 0x0800
+#define IEEE802154_FCTL_DADDR_EXTENDED 0x0c00
+
/*
* ieee802154_is_data - check if type is IEEE802154_FTYPE_DATA
* @fc: frame control bytes in little-endian byteorder
@@ -261,6 +268,15 @@ static inline bool ieee802154_is_intra_pan(__le16 fc)
return fc & cpu_to_le16(IEEE802154_FCTL_INTRA_PAN);
}
+/*
+ * ieee802154_daddr_mode - get daddr mode from fc
+ * @fc: frame control bytes in little-endian byteorder
+ */
+static inline __le16 ieee802154_daddr_mode(__le16 fc)
+{
+ return fc & cpu_to_le16(IEEE802154_FCTL_DADDR);
+}
+
/**
* ieee802154_is_valid_psdu_len - check if psdu len is valid
* available lengths: