git: c8c12a517b31 - stable/14 - LinuxKPI: 802.11: move functions between header files
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Date: Wed, 09 Oct 2024 23:13:49 UTC
The branch stable/14 has been updated by bz:
URL: https://cgit.FreeBSD.org/src/commit/?id=c8c12a517b311b7159d6d31ee4c0c252b9469a4e
commit c8c12a517b311b7159d6d31ee4c0c252b9469a4e
Author: Bjoern A. Zeeb <bz@FreeBSD.org>
AuthorDate: 2024-09-27 17:47:30 +0000
Commit: Bjoern A. Zeeb <bz@FreeBSD.org>
CommitDate: 2024-10-09 19:18:58 +0000
LinuxKPI: 802.11: move functions between header files
Move some ieee8022_{is,has,get}_... functions working on header fields
from mac80211.h to ieee80211.h to avoid problems with #includes.
No functional changes.
Sponsored by: The FreeBSD Foundation
(cherry picked from commit 0b325167f60def621536632460caf68e2fab4fb8)
---
.../linuxkpi/common/include/linux/ieee80211.h | 351 +++++++++++++++++++++
sys/compat/linuxkpi/common/include/net/mac80211.h | 341 --------------------
2 files changed, 351 insertions(+), 341 deletions(-)
diff --git a/sys/compat/linuxkpi/common/include/linux/ieee80211.h b/sys/compat/linuxkpi/common/include/linux/ieee80211.h
index 9a43a571d390..ce6a18f798d1 100644
--- a/sys/compat/linuxkpi/common/include/linux/ieee80211.h
+++ b/sys/compat/linuxkpi/common/include/linux/ieee80211.h
@@ -37,6 +37,14 @@
#include <linux/bitops.h>
#include <linux/if_ether.h>
+/* linux_80211.c */
+extern int linuxkpi_debug_80211;
+#ifndef D80211_TODO
+#define D80211_TODO 0x1
+#endif
+#define TODO(...) if (linuxkpi_debug_80211 & D80211_TODO) \
+ printf("%s:%d: XXX LKPI80211 TODO\n", __func__, __LINE__)
+
/* 9.4.2.55 Management MIC element (CMAC-256, GMAC-128, and GMAC-256). */
struct ieee80211_mmie_16 {
@@ -853,4 +861,347 @@ ieee80211_is_trigger(__le16 fc)
return (fc == v);
}
+static __inline bool
+ieee80211_is_action(__le16 fc)
+{
+ __le16 v;
+
+ fc &= htole16(IEEE80211_FC0_SUBTYPE_MASK | IEEE80211_FC0_TYPE_MASK);
+ v = htole16(IEEE80211_FC0_SUBTYPE_ACTION | IEEE80211_FC0_TYPE_MGT);
+
+ return (fc == v);
+}
+
+static __inline bool
+ieee80211_is_probe_resp(__le16 fc)
+{
+ __le16 v;
+
+ fc &= htole16(IEEE80211_FC0_SUBTYPE_MASK | IEEE80211_FC0_TYPE_MASK);
+ v = htole16(IEEE80211_FC0_SUBTYPE_PROBE_RESP | IEEE80211_FC0_TYPE_MGT);
+
+ return (fc == v);
+}
+
+static __inline bool
+ieee80211_is_auth(__le16 fc)
+{
+ __le16 v;
+
+ fc &= htole16(IEEE80211_FC0_SUBTYPE_MASK | IEEE80211_FC0_TYPE_MASK);
+ v = htole16(IEEE80211_FC0_SUBTYPE_AUTH | IEEE80211_FC0_TYPE_MGT);
+
+ return (fc == v);
+}
+
+static __inline bool
+ieee80211_is_assoc_req(__le16 fc)
+{
+ __le16 v;
+
+ fc &= htole16(IEEE80211_FC0_SUBTYPE_MASK | IEEE80211_FC0_TYPE_MASK);
+ v = htole16(IEEE80211_FC0_SUBTYPE_ASSOC_REQ | IEEE80211_FC0_TYPE_MGT);
+
+ return (fc == v);
+}
+
+static __inline bool
+ieee80211_is_assoc_resp(__le16 fc)
+{
+ __le16 v;
+
+ fc &= htole16(IEEE80211_FC0_SUBTYPE_MASK | IEEE80211_FC0_TYPE_MASK);
+ v = htole16(IEEE80211_FC0_SUBTYPE_ASSOC_RESP | IEEE80211_FC0_TYPE_MGT);
+
+ return (fc == v);
+}
+
+static __inline bool
+ieee80211_is_reassoc_req(__le16 fc)
+{
+ __le16 v;
+
+ fc &= htole16(IEEE80211_FC0_SUBTYPE_MASK | IEEE80211_FC0_TYPE_MASK);
+ v = htole16(IEEE80211_FC0_SUBTYPE_REASSOC_REQ | IEEE80211_FC0_TYPE_MGT);
+
+ return (fc == v);
+}
+
+static __inline bool
+ieee80211_is_reassoc_resp(__le16 fc)
+{
+ __le16 v;
+
+ fc &= htole16(IEEE80211_FC0_SUBTYPE_MASK | IEEE80211_FC0_TYPE_MASK);
+ v = htole16(IEEE80211_FC0_SUBTYPE_REASSOC_RESP | IEEE80211_FC0_TYPE_MGT);
+
+ return (fc == v);
+}
+
+static __inline bool
+ieee80211_is_disassoc(__le16 fc)
+{
+ __le16 v;
+
+ fc &= htole16(IEEE80211_FC0_SUBTYPE_MASK | IEEE80211_FC0_TYPE_MASK);
+ v = htole16(IEEE80211_FC0_SUBTYPE_DISASSOC | IEEE80211_FC0_TYPE_MGT);
+
+ return (fc == v);
+}
+
+static __inline bool
+ieee80211_is_data_present(__le16 fc)
+{
+ __le16 v;
+
+ /* If it is a data frame and NODATA is not present. */
+ fc &= htole16(IEEE80211_FC0_TYPE_MASK | IEEE80211_FC0_SUBTYPE_NODATA);
+ v = htole16(IEEE80211_FC0_TYPE_DATA);
+
+ return (fc == v);
+}
+
+static __inline bool
+ieee80211_is_deauth(__le16 fc)
+{
+ __le16 v;
+
+ fc &= htole16(IEEE80211_FC0_SUBTYPE_MASK | IEEE80211_FC0_TYPE_MASK);
+ v = htole16(IEEE80211_FC0_SUBTYPE_DEAUTH | IEEE80211_FC0_TYPE_MGT);
+
+ return (fc == v);
+}
+
+static __inline bool
+ieee80211_is_beacon(__le16 fc)
+{
+ __le16 v;
+
+ /*
+ * For as much as I get it this comes in LE and unlike FreeBSD
+ * where we get the entire frame header and u8[], here we get the
+ * 9.2.4.1 Frame Control field only. Mask and compare.
+ */
+ fc &= htole16(IEEE80211_FC0_SUBTYPE_MASK | IEEE80211_FC0_TYPE_MASK);
+ v = htole16(IEEE80211_FC0_SUBTYPE_BEACON | IEEE80211_FC0_TYPE_MGT);
+
+ return (fc == v);
+}
+
+
+static __inline bool
+ieee80211_is_probe_req(__le16 fc)
+{
+ __le16 v;
+
+ fc &= htole16(IEEE80211_FC0_SUBTYPE_MASK | IEEE80211_FC0_TYPE_MASK);
+ v = htole16(IEEE80211_FC0_SUBTYPE_PROBE_REQ | IEEE80211_FC0_TYPE_MGT);
+
+ return (fc == v);
+}
+
+static __inline bool
+ieee80211_has_protected(__le16 fc)
+{
+
+ return (fc & htole16(IEEE80211_FC1_PROTECTED << 8));
+}
+
+static __inline bool
+ieee80211_is_back_req(__le16 fc)
+{
+ __le16 v;
+
+ fc &= htole16(IEEE80211_FC0_SUBTYPE_MASK | IEEE80211_FC0_TYPE_MASK);
+ v = htole16(IEEE80211_FC0_SUBTYPE_BAR | IEEE80211_FC0_TYPE_CTL);
+
+ return (fc == v);
+}
+
+static __inline bool
+ieee80211_is_bufferable_mmpdu(struct sk_buff *skb)
+{
+ struct ieee80211_mgmt *mgmt;
+ __le16 fc;
+
+ mgmt = (struct ieee80211_mgmt *)skb->data;
+ fc = mgmt->frame_control;
+
+ /* 11.2.2 Bufferable MMPDUs, 80211-2020. */
+ /* XXX we do not care about IBSS yet. */
+
+ if (!ieee80211_is_mgmt(fc))
+ return (false);
+ if (ieee80211_is_action(fc)) /* XXX FTM? */
+ return (true); /* XXX false? */
+ if (ieee80211_is_disassoc(fc))
+ return (true);
+ if (ieee80211_is_deauth(fc))
+ return (true);
+
+ TODO();
+
+ return (false);
+}
+
+static __inline bool
+ieee80211_is_nullfunc(__le16 fc)
+{
+ __le16 v;
+
+ fc &= htole16(IEEE80211_FC0_SUBTYPE_MASK | IEEE80211_FC0_TYPE_MASK);
+ v = htole16(IEEE80211_FC0_SUBTYPE_NODATA | IEEE80211_FC0_TYPE_DATA);
+
+ return (fc == v);
+}
+
+static __inline bool
+ieee80211_is_qos_nullfunc(__le16 fc)
+{
+ __le16 v;
+
+ fc &= htole16(IEEE80211_FC0_SUBTYPE_MASK | IEEE80211_FC0_TYPE_MASK);
+ v = htole16(IEEE80211_FC0_SUBTYPE_QOS_NULL | IEEE80211_FC0_TYPE_DATA);
+
+ return (fc == v);
+}
+
+static __inline bool
+ieee80211_is_any_nullfunc(__le16 fc)
+{
+
+ return (ieee80211_is_nullfunc(fc) || ieee80211_is_qos_nullfunc(fc));
+}
+
+static inline bool
+ieee80211_is_pspoll(__le16 fc)
+{
+ __le16 v;
+
+ fc &= htole16(IEEE80211_FC0_SUBTYPE_MASK | IEEE80211_FC0_TYPE_MASK);
+ v = htole16(IEEE80211_FC0_SUBTYPE_PS_POLL | IEEE80211_FC0_TYPE_CTL);
+
+ return (fc == v);
+}
+
+static __inline bool
+ieee80211_has_a4(__le16 fc)
+{
+ __le16 v;
+
+ fc &= htole16((IEEE80211_FC1_DIR_TODS | IEEE80211_FC1_DIR_FROMDS) << 8);
+ v = htole16((IEEE80211_FC1_DIR_TODS | IEEE80211_FC1_DIR_FROMDS) << 8);
+
+ return (fc == v);
+}
+
+static __inline bool
+ieee80211_has_order(__le16 fc)
+{
+
+ return (fc & htole16(IEEE80211_FC1_ORDER << 8));
+}
+
+static __inline bool
+ieee80211_has_retry(__le16 fc)
+{
+
+ return (fc & htole16(IEEE80211_FC1_RETRY << 8));
+}
+
+
+static __inline bool
+ieee80211_has_fromds(__le16 fc)
+{
+
+ return (fc & htole16(IEEE80211_FC1_DIR_FROMDS << 8));
+}
+
+static __inline bool
+ieee80211_has_tods(__le16 fc)
+{
+
+ return (fc & htole16(IEEE80211_FC1_DIR_TODS << 8));
+}
+
+static __inline uint8_t *
+ieee80211_get_SA(struct ieee80211_hdr *hdr)
+{
+
+ if (ieee80211_has_a4(hdr->frame_control))
+ return (hdr->addr4);
+ if (ieee80211_has_fromds(hdr->frame_control))
+ return (hdr->addr3);
+ return (hdr->addr2);
+}
+
+static __inline uint8_t *
+ieee80211_get_DA(struct ieee80211_hdr *hdr)
+{
+
+ if (ieee80211_has_tods(hdr->frame_control))
+ return (hdr->addr3);
+ return (hdr->addr1);
+}
+
+static __inline bool
+ieee80211_is_frag(struct ieee80211_hdr *hdr)
+{
+ TODO();
+ return (false);
+}
+
+static __inline bool
+ieee80211_is_first_frag(__le16 fc)
+{
+ TODO();
+ return (false);
+}
+
+static __inline bool
+ieee80211_is_robust_mgmt_frame(struct sk_buff *skb)
+{
+ TODO();
+ return (false);
+}
+
+static __inline bool
+ieee80211_is_ftm(struct sk_buff *skb)
+{
+ TODO();
+ return (false);
+}
+
+static __inline bool
+ieee80211_is_timing_measurement(struct sk_buff *skb)
+{
+ TODO();
+ return (false);
+}
+
+static __inline bool
+ieee80211_has_pm(__le16 fc)
+{
+ TODO();
+ return (false);
+}
+
+static __inline bool
+ieee80211_has_morefrags(__le16 fc)
+{
+
+ fc &= htole16(IEEE80211_FC1_MORE_FRAG << 8);
+ return (fc != 0);
+}
+
+static __inline u8 *
+ieee80211_get_qos_ctl(struct ieee80211_hdr *hdr)
+{
+ if (ieee80211_has_a4(hdr->frame_control))
+ return (u8 *)hdr + 30;
+ else
+ return (u8 *)hdr + 24;
+}
+
+
#endif /* _LINUXKPI_LINUX_IEEE80211_H */
diff --git a/sys/compat/linuxkpi/common/include/net/mac80211.h b/sys/compat/linuxkpi/common/include/net/mac80211.h
index 29fb335a8db9..c3b07b68090a 100644
--- a/sys/compat/linuxkpi/common/include/net/mac80211.h
+++ b/sys/compat/linuxkpi/common/include/net/mac80211.h
@@ -1260,229 +1260,6 @@ ieee80211_hw_restart_disconnect(struct ieee80211_vif *vif)
/* -------------------------------------------------------------------------- */
-static __inline bool
-ieee80211_is_action(__le16 fc)
-{
- __le16 v;
-
- fc &= htole16(IEEE80211_FC0_SUBTYPE_MASK | IEEE80211_FC0_TYPE_MASK);
- v = htole16(IEEE80211_FC0_SUBTYPE_ACTION | IEEE80211_FC0_TYPE_MGT);
-
- return (fc == v);
-}
-
-static __inline bool
-ieee80211_is_probe_resp(__le16 fc)
-{
- __le16 v;
-
- fc &= htole16(IEEE80211_FC0_SUBTYPE_MASK | IEEE80211_FC0_TYPE_MASK);
- v = htole16(IEEE80211_FC0_SUBTYPE_PROBE_RESP | IEEE80211_FC0_TYPE_MGT);
-
- return (fc == v);
-}
-
-static __inline bool
-ieee80211_is_auth(__le16 fc)
-{
- __le16 v;
-
- fc &= htole16(IEEE80211_FC0_SUBTYPE_MASK | IEEE80211_FC0_TYPE_MASK);
- v = htole16(IEEE80211_FC0_SUBTYPE_AUTH | IEEE80211_FC0_TYPE_MGT);
-
- return (fc == v);
-}
-
-static __inline bool
-ieee80211_is_assoc_req(__le16 fc)
-{
- __le16 v;
-
- fc &= htole16(IEEE80211_FC0_SUBTYPE_MASK | IEEE80211_FC0_TYPE_MASK);
- v = htole16(IEEE80211_FC0_SUBTYPE_ASSOC_REQ | IEEE80211_FC0_TYPE_MGT);
-
- return (fc == v);
-}
-
-static __inline bool
-ieee80211_is_assoc_resp(__le16 fc)
-{
- __le16 v;
-
- fc &= htole16(IEEE80211_FC0_SUBTYPE_MASK | IEEE80211_FC0_TYPE_MASK);
- v = htole16(IEEE80211_FC0_SUBTYPE_ASSOC_RESP | IEEE80211_FC0_TYPE_MGT);
-
- return (fc == v);
-}
-
-static __inline bool
-ieee80211_is_reassoc_req(__le16 fc)
-{
- __le16 v;
-
- fc &= htole16(IEEE80211_FC0_SUBTYPE_MASK | IEEE80211_FC0_TYPE_MASK);
- v = htole16(IEEE80211_FC0_SUBTYPE_REASSOC_REQ | IEEE80211_FC0_TYPE_MGT);
-
- return (fc == v);
-}
-
-static __inline bool
-ieee80211_is_reassoc_resp(__le16 fc)
-{
- __le16 v;
-
- fc &= htole16(IEEE80211_FC0_SUBTYPE_MASK | IEEE80211_FC0_TYPE_MASK);
- v = htole16(IEEE80211_FC0_SUBTYPE_REASSOC_RESP | IEEE80211_FC0_TYPE_MGT);
-
- return (fc == v);
-}
-
-static __inline bool
-ieee80211_is_disassoc(__le16 fc)
-{
- __le16 v;
-
- fc &= htole16(IEEE80211_FC0_SUBTYPE_MASK | IEEE80211_FC0_TYPE_MASK);
- v = htole16(IEEE80211_FC0_SUBTYPE_DISASSOC | IEEE80211_FC0_TYPE_MGT);
-
- return (fc == v);
-}
-
-static __inline bool
-ieee80211_is_data_present(__le16 fc)
-{
- __le16 v;
-
- /* If it is a data frame and NODATA is not present. */
- fc &= htole16(IEEE80211_FC0_TYPE_MASK | IEEE80211_FC0_SUBTYPE_NODATA);
- v = htole16(IEEE80211_FC0_TYPE_DATA);
-
- return (fc == v);
-}
-
-static __inline bool
-ieee80211_is_deauth(__le16 fc)
-{
- __le16 v;
-
- fc &= htole16(IEEE80211_FC0_SUBTYPE_MASK | IEEE80211_FC0_TYPE_MASK);
- v = htole16(IEEE80211_FC0_SUBTYPE_DEAUTH | IEEE80211_FC0_TYPE_MGT);
-
- return (fc == v);
-}
-
-static __inline bool
-ieee80211_is_beacon(__le16 fc)
-{
- __le16 v;
-
- /*
- * For as much as I get it this comes in LE and unlike FreeBSD
- * where we get the entire frame header and u8[], here we get the
- * 9.2.4.1 Frame Control field only. Mask and compare.
- */
- fc &= htole16(IEEE80211_FC0_SUBTYPE_MASK | IEEE80211_FC0_TYPE_MASK);
- v = htole16(IEEE80211_FC0_SUBTYPE_BEACON | IEEE80211_FC0_TYPE_MGT);
-
- return (fc == v);
-}
-
-
-static __inline bool
-ieee80211_is_probe_req(__le16 fc)
-{
- __le16 v;
-
- fc &= htole16(IEEE80211_FC0_SUBTYPE_MASK | IEEE80211_FC0_TYPE_MASK);
- v = htole16(IEEE80211_FC0_SUBTYPE_PROBE_REQ | IEEE80211_FC0_TYPE_MGT);
-
- return (fc == v);
-}
-
-static __inline bool
-ieee80211_has_protected(__le16 fc)
-{
-
- return (fc & htole16(IEEE80211_FC1_PROTECTED << 8));
-}
-
-static __inline bool
-ieee80211_is_back_req(__le16 fc)
-{
- __le16 v;
-
- fc &= htole16(IEEE80211_FC0_SUBTYPE_MASK | IEEE80211_FC0_TYPE_MASK);
- v = htole16(IEEE80211_FC0_SUBTYPE_BAR | IEEE80211_FC0_TYPE_CTL);
-
- return (fc == v);
-}
-
-static __inline bool
-ieee80211_is_bufferable_mmpdu(struct sk_buff *skb)
-{
- struct ieee80211_mgmt *mgmt;
- __le16 fc;
-
- mgmt = (struct ieee80211_mgmt *)skb->data;
- fc = mgmt->frame_control;
-
- /* 11.2.2 Bufferable MMPDUs, 80211-2020. */
- /* XXX we do not care about IBSS yet. */
-
- if (!ieee80211_is_mgmt(fc))
- return (false);
- if (ieee80211_is_action(fc)) /* XXX FTM? */
- return (true); /* XXX false? */
- if (ieee80211_is_disassoc(fc))
- return (true);
- if (ieee80211_is_deauth(fc))
- return (true);
-
- TODO();
-
- return (false);
-}
-
-static __inline bool
-ieee80211_is_nullfunc(__le16 fc)
-{
- __le16 v;
-
- fc &= htole16(IEEE80211_FC0_SUBTYPE_MASK | IEEE80211_FC0_TYPE_MASK);
- v = htole16(IEEE80211_FC0_SUBTYPE_NODATA | IEEE80211_FC0_TYPE_DATA);
-
- return (fc == v);
-}
-
-static __inline bool
-ieee80211_is_qos_nullfunc(__le16 fc)
-{
- __le16 v;
-
- fc &= htole16(IEEE80211_FC0_SUBTYPE_MASK | IEEE80211_FC0_TYPE_MASK);
- v = htole16(IEEE80211_FC0_SUBTYPE_QOS_NULL | IEEE80211_FC0_TYPE_DATA);
-
- return (fc == v);
-}
-
-static __inline bool
-ieee80211_is_any_nullfunc(__le16 fc)
-{
-
- return (ieee80211_is_nullfunc(fc) || ieee80211_is_qos_nullfunc(fc));
-}
-
-static inline bool
-ieee80211_is_pspoll(__le16 fc)
-{
- __le16 v;
-
- fc &= htole16(IEEE80211_FC0_SUBTYPE_MASK | IEEE80211_FC0_TYPE_MASK);
- v = htole16(IEEE80211_FC0_SUBTYPE_PS_POLL | IEEE80211_FC0_TYPE_CTL);
-
- return (fc == v);
-}
-
static __inline bool
ieee80211_vif_is_mesh(struct ieee80211_vif *vif)
{
@@ -1490,124 +1267,6 @@ ieee80211_vif_is_mesh(struct ieee80211_vif *vif)
return (false);
}
-static __inline bool
-ieee80211_is_frag(struct ieee80211_hdr *hdr)
-{
- TODO();
- return (false);
-}
-
-static __inline bool
-ieee80211_is_first_frag(__le16 fc)
-{
- TODO();
- return (false);
-}
-
-static __inline bool
-ieee80211_is_robust_mgmt_frame(struct sk_buff *skb)
-{
- TODO();
- return (false);
-}
-
-static __inline bool
-ieee80211_is_ftm(struct sk_buff *skb)
-{
- TODO();
- return (false);
-}
-
-static __inline bool
-ieee80211_is_timing_measurement(struct sk_buff *skb)
-{
- TODO();
- return (false);
-}
-
-static __inline bool
-ieee80211_has_pm(__le16 fc)
-{
- TODO();
- return (false);
-}
-
-static __inline bool
-ieee80211_has_a4(__le16 fc)
-{
- __le16 v;
-
- fc &= htole16((IEEE80211_FC1_DIR_TODS | IEEE80211_FC1_DIR_FROMDS) << 8);
- v = htole16((IEEE80211_FC1_DIR_TODS | IEEE80211_FC1_DIR_FROMDS) << 8);
-
- return (fc == v);
-}
-
-static __inline bool
-ieee80211_has_order(__le16 fc)
-{
-
- return (fc & htole16(IEEE80211_FC1_ORDER << 8));
-}
-
-static __inline bool
-ieee80211_has_retry(__le16 fc)
-{
-
- return (fc & htole16(IEEE80211_FC1_RETRY << 8));
-}
-
-
-static __inline bool
-ieee80211_has_fromds(__le16 fc)
-{
-
- return (fc & htole16(IEEE80211_FC1_DIR_FROMDS << 8));
-}
-
-static __inline bool
-ieee80211_has_tods(__le16 fc)
-{
-
- return (fc & htole16(IEEE80211_FC1_DIR_TODS << 8));
-}
-
-static __inline uint8_t *
-ieee80211_get_SA(struct ieee80211_hdr *hdr)
-{
-
- if (ieee80211_has_a4(hdr->frame_control))
- return (hdr->addr4);
- if (ieee80211_has_fromds(hdr->frame_control))
- return (hdr->addr3);
- return (hdr->addr2);
-}
-
-static __inline uint8_t *
-ieee80211_get_DA(struct ieee80211_hdr *hdr)
-{
-
- if (ieee80211_has_tods(hdr->frame_control))
- return (hdr->addr3);
- return (hdr->addr1);
-}
-
-static __inline bool
-ieee80211_has_morefrags(__le16 fc)
-{
-
- fc &= htole16(IEEE80211_FC1_MORE_FRAG << 8);
- return (fc != 0);
-}
-
-static __inline u8 *
-ieee80211_get_qos_ctl(struct ieee80211_hdr *hdr)
-{
- if (ieee80211_has_a4(hdr->frame_control))
- return (u8 *)hdr + 30;
- else
- return (u8 *)hdr + 24;
-}
/* -------------------------------------------------------------------------- */
/* Receive functions (air/driver to mac80211/net80211). */