<commit_before>/*
 * Copyright (c) 2008, 2009 open80211s Ltd.
 * Author:     <NAME> <<EMAIL>>
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License version 2 as
 * published by the Free Software Foundation.
 */

#include <linux/slab.h>
#include "mesh.h"

#ifdef CONFIG_MAC80211_VERBOSE_MHWMP_DEBUG
#define mhwmp_dbg(fmt, args...) \
	printk(KERN_DEBUG "Mesh HWMP (%s): " fmt "\n", sdata->name, ##args)
#else
#define mhwmp_dbg(fmt, args...)   do { (void)(0); } while (0)
#endif

#define TEST_FRAME_LEN	8192
#define MAX_METRIC	0xffffffff
#define ARITH_SHIFT	8

/* Number of frames buffered per destination for unresolved destinations */
#define MESH_FRAME_QUEUE_LEN	10
#define MAX_PREQ_QUEUE_LEN	64

/* Destination only */
#define MP_F_DO	0x1
/* Reply and forward */
#define MP_F_RF	0x2
/* Unknown Sequence Number */
#define MP_F_USN    0x01
/* Reason code Present */
#define MP_F_RCODE  0x02

static void mesh_queue_preq(struct mesh_path *, u8);

static inline u32 u32_field_get(u8 *preq_elem, int offset, bool ae)
{
	if (ae)
		offset += 6;
	return get_unaligned_le32(preq_elem + offset);
}

static inline u32 u16_field_get(u8 *preq_elem, int offset, bool ae)
{
	if (ae)
		offset += 6;
	return get_unaligned_le16(preq_elem + offset);
}

/* HWMP IE processing macros */
#define AE_F			(1<<6)
#define AE_F_SET(x)		(*x & AE_F)
#define PREQ_IE_FLAGS(x)	(*(x))
#define PREQ_IE_HOPCOUNT(x)	(*(x + 1))
#define PREQ_IE_TTL(x)		(*(x + 2))
#define PREQ_IE_PREQ_ID(x)	u32_field_get(x, 3, 0)
#define PREQ_IE_ORIG_ADDR(x)	(x + 7)
#define PREQ_IE_ORIG_SN(x)	u32_field_get(x, 13, 0)
#define PREQ_IE_LIFETIME(x)	u32_field_get(x, 17, AE_F_SET(x))
#define PREQ_IE_METRIC(x) 	u32_field_get(x, 21, AE_F_SET(x))
#define PREQ_IE_TARGET_F(x)	(*(AE_F_SET(x) ? x + 32 : x + 26))
#define PREQ_IE_TARGET_ADDR(x) 	(AE_F_SET(x) ? x + 33 : x + 27)
#define PREQ_IE_TARGET_SN(x) 	u32_field_get(x, 33, AE_F_SET(x))


#define PREP_IE_FLAGS(x)	PREQ_IE_FLAGS(x)
#define PREP_IE_HOPCOUNT(x)	PREQ_IE_HOPCOUNT(x)
#define PREP_IE_TTL(x)		PREQ_IE_TTL(x)
#define PREP_IE_ORIG_ADDR(x)	(AE_F_SET(x) ? x + 27 : x + 21)
#define PREP_IE_ORIG_SN(x)	u32_field_get(x, 27, AE_F_SET(x))
#define PREP_IE_LIFETIME(x)	u32_field_get(x, 13, AE_F_SET(x))
#define PREP_IE_METRIC(x)	u32_field_get(x, 17, AE_F_SET(x))
#define PREP_IE_TARGET_ADDR(x)	(x + 3)
#define PREP_IE_TARGET_SN(x)	u32_field_get(x, 9, 0)

#define PERR_IE_TTL(x)		(*(x))
#define PERR_IE_TARGET_FLAGS(x)	(*(x + 2))
#define PERR_IE_TARGET_ADDR(x)	(x + 3)
#define PERR_IE_TARGET_SN(x)	u32_field_get(x, 9, 0)
#define PERR_IE_TARGET_RCODE(x)	u16_field_get(x, 13, 0)

#define MSEC_TO_TU(x) (x*1000/1024)
#define SN_GT(x, y) ((long) (y) - (long) (x) < 0)
#define SN_LT(x, y) ((long) (x) - (long) (y) < 0)

#define net_traversal_jiffies(s) \
	msecs_to_jiffies(s->u.mesh.mshcfg.dot11MeshHWMPnetDiameterTraversalTime)
#define default_lifetime(s) \
	MSEC_TO_TU(s->u.mesh.mshcfg.dot11MeshHWMPactivePathTimeout)
#define min_preq_int_jiff(s) \
	(msecs_to_jiffies(s->u.mesh.mshcfg.dot11MeshHWMPpreqMinInterval))
#define max_preq_retries(s) (s->u.mesh.mshcfg.dot11MeshHWMPmaxPREQretries)
#define disc_timeout_jiff(s) \
	msecs_to_jiffies(sdata->u.mesh.mshcfg.min_discovery_timeout)

enum mpath_frame_type {
	MPATH_PREQ = 0,
	MPATH_PREP,
	MPATH_PERR,
	MPATH_RANN
};

static const u8 broadcast_addr[ETH_ALEN] = {0xff, 0xff, 0xff, 0xff, 0xff, 0xff};

static int mesh_path_sel_frame_tx(enum mpath_frame_type action, u8 flags,
		u8 *orig_addr, __le32 orig_sn, u8 target_flags, u8 *target,
		__le32 target_sn, const u8 *da, u8 hop_count, u8 ttl,
		__le32 lifetime, __le32 metric, __le32 preq_id,
		struct ieee80211_sub_if_data *sdata)
{
	struct ieee80211_local *local = sdata->local;
	struct sk_buff *skb = dev_alloc_skb(local->hw.extra_tx_headroom + 400);
	struct ieee80211_mgmt *mgmt;
	u8 *pos;
	int ie_len;

	if (!skb)
		return -1;
	skb_reserve(skb, local->hw.extra_tx_headroom);
	/* 25 is the size of the common mgmt part (24) plus the size of the
	 * common action part (1)
	 */
	mgmt = (struct ieee80211_mgmt *)
		skb_put(skb, 25 + sizeof(mgmt->u.action.u.mesh_action));
	memset(mgmt, 0, 25 + sizeof(mgmt->u.action.u.mesh_action));
	mgmt->frame_control = cpu_to_le16(IEEE80211_FTYPE_MGMT |
					  IEEE80211_STYPE_ACTION);

	memcpy(mgmt->da, da, ETH_ALEN);
	memcpy(mgmt->sa, sdata->vif.addr, ETH_ALEN);
	/* BSSID == SA */
	memcpy(mgmt->bssid, sdata->vif.addr, ETH_ALEN);
	mgmt->u.action.category = WLAN_CATEGORY_MESH_ACTION;
	mgmt->u.action.u.mesh_action.action_code =
					WLAN_MESH_ACTION_HWMP_PATH_SELECTION;

	switch (action) {
	case MPATH_PREQ:
		mhwmp_dbg("sending PREQ to %pM", target);
		ie_len = 37;
		pos = skb_put(skb, 2 + ie_len);
		*pos++ = WLAN_EID_PREQ;
		break;
	case MPATH_PREP:
		mhwmp_dbg("sending PREP to %pM", target);
		ie_len = 31;
		pos = skb_put(skb, 2 + ie_len);
		*pos++ = WLAN_EID_PREP;
		break;
	case MPATH_RANN:
		mhwmp_dbg("sending RANN from %pM", orig_addr);
		ie_len = sizeof(struct ieee80211_rann_ie);
		pos = skb_put(skb, 2 + ie_len);
		*pos++ = WLAN_EID_RANN;
		break;
	default:
		kfree_skb(skb);
		return -ENOTSUPP;
		break;
	}
	*pos++ = ie_len;
	*pos++ = flags;
	*pos++ = hop_count;
	*pos++ = ttl;
	if (action == MPATH_PREP) {
		memcpy(pos, target, ETH_ALEN);
		pos += ETH_ALEN;
		memcpy(pos, &target_sn, 4);
		pos += 4;
	} else {
		if (action == MPATH_PREQ) {
			memcpy(pos, &preq_id, 4);
			pos += 4;
		}
		memcpy(pos, orig_addr, ETH_ALEN);
		pos += ETH_ALEN;
		memcpy(pos, &orig_sn, 4);
		pos += 4;
	}
	memcpy(pos, &lifetime, 4);	/* interval for RANN */
	pos += 4;
	memcpy(pos, &metric, 4);
	pos += 4;
	if (action == MPATH_PREQ) {
		*pos++ = 1; /* destination count */
		*pos++ = target_flags;
		memcpy(pos, target, ETH_ALEN);
		pos += ETH_ALEN;
		memcpy(pos, &target_sn, 4);
		pos += 4;
	} else if (action == MPATH_PREP) {
		memcpy(pos, orig_addr, ETH_ALEN);
		pos += ETH_ALEN;
		memcpy(pos, &orig_sn, 4);
		pos += 4;
	}

	ieee80211_tx_skb(sdata, skb);
	return 0;
}

/**
 * mesh_send_path error - Sends a PERR mesh management frame
 *
 * @target: broken destination
 * @target_sn: SN of the broken destination
 * @target_rcode: reason code for this PERR
 * @ra: node this frame is addressed to
 */
int mesh_path_error_tx(u8 ttl, u8 *target, __le32 target_sn,
		       __le16 target_rcode, const u8 *ra,
		       struct ieee80211_sub_if_data *sdata)
{
	struct ieee80211_local *local = sdata->local;
	struct sk_buff *skb = dev_alloc_skb(local->hw.extra_tx_headroom + 400);
	struct ieee80211_mgmt *mgmt;
	u8 *pos;
	int ie_len;

	if (!skb)
		return -1;
	skb_reserve(skb, local->hw.extra_tx_headroom);
	/* 25 is the size of the common mgmt part (24) plus the size of the
	 * common action part (1)
	 */
	mgmt = (struct ieee80211_mgmt *)
		skb_put(skb, 25 + sizeof(mgmt->u.action.u.mesh_action));
	memset(mgmt, 0, 25 + sizeof(mgmt->u.action.u.mesh_action));
	mgmt->frame_control = cpu_to_le16(IEEE80211_FTYPE_MGMT |
					  IEEE80211_STYPE_ACTION);

	memcpy(mgmt->da, ra, ETH_ALEN);
	memcpy(mgmt->sa, sdata->vif.addr, ETH_ALEN);
	/* BSSID == SA */
	memcpy(mgmt->bssid, sdata->vif.addr, ETH_ALEN);
	mgmt->u.action.category = WLAN_CATEGORY_MESH_ACTION;
	mgmt->u.action.u.mesh_action.action_code =
					WLAN_MESH_ACTION_HWMP_PATH_SELECTION;
	ie_len = 15;
	pos = skb_put(skb, 2 + ie_len);
	*pos++ = WLAN_EID_PERR;
	*pos++ = ie_len;
	/* ttl */
	*pos++ = ttl;
	/* number of destinations */
	*pos++ = 1;
	/*
	 * flags bit, bit 1 is unset if we know the sequence number and
	 * bit 2 is set if we have a reason code
	 */
	*pos = 0;
	if (!target_sn)
		*pos |= MP_F_USN;
	if (target_rcode)
		*pos |= MP_F_RCODE;
	pos++;
	memcpy(pos, target, ETH_ALEN);
	pos += ETH_ALEN;
	memcpy(pos, &target_sn, 4);
	pos += 4;
	memcpy(pos, &target_rcode, 2);

	ieee80211_tx_skb(sdata, skb);
	return 0;
}

void ieee80211s_update_metric(struct ieee80211_local *local,
		struct sta_info *stainfo, struct sk_buff *skb)
{
	struct ieee80211_tx_info *txinfo = IEEE80211_SKB_CB(skb);
	struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) skb->data;
	int failed;

	if (!ieee80211_is_data(hdr->frame_control))
		return;<commit_msg>mac80211: Defer tranmission of mesh path errors<commit_after>/*
 * Copyright (c) 2008, 2009 open80211s Ltd.
 * Author:     <NAME> <<EMAIL>>
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License version 2 as
 * published by the Free Software Foundation.
 */

#include <linux/slab.h>
#include "wme.h"
#include "mesh.h"

#ifdef CONFIG_MAC80211_VERBOSE_MHWMP_DEBUG
#define mhwmp_dbg(fmt, args...) \
	printk(KERN_DEBUG "Mesh HWMP (%s): " fmt "\n", sdata->name, ##args)
#else
#define mhwmp_dbg(fmt, args...)   do { (void)(0); } while (0)
#endif

#define TEST_FRAME_LEN	8192
#define MAX_METRIC	0xffffffff
#define ARITH_SHIFT	8

/* Number of frames buffered per destination for unresolved destinations */
#define MESH_FRAME_QUEUE_LEN	10
#define MAX_PREQ_QUEUE_LEN	64

/* Destination only */
#define MP_F_DO	0x1
/* Reply and forward */
#define MP_F_RF	0x2
/* Unknown Sequence Number */
#define MP_F_USN    0x01
/* Reason code Present */
#define MP_F_RCODE  0x02

static void mesh_queue_preq(struct mesh_path *, u8);

static inline u32 u32_field_get(u8 *preq_elem, int offset, bool ae)
{
	if (ae)
		offset += 6;
	return get_unaligned_le32(preq_elem + offset);
}

static inline u32 u16_field_get(u8 *preq_elem, int offset, bool ae)
{
	if (ae)
		offset += 6;
	return get_unaligned_le16(preq_elem + offset);
}

/* HWMP IE processing macros */
#define AE_F			(1<<6)
#define AE_F_SET(x)		(*x & AE_F)
#define PREQ_IE_FLAGS(x)	(*(x))
#define PREQ_IE_HOPCOUNT(x)	(*(x + 1))
#define PREQ_IE_TTL(x)		(*(x + 2))
#define PREQ_IE_PREQ_ID(x)	u32_field_get(x, 3, 0)
#define PREQ_IE_ORIG_ADDR(x)	(x + 7)
#define PREQ_IE_ORIG_SN(x)	u32_field_get(x, 13, 0)
#define PREQ_IE_LIFETIME(x)	u32_field_get(x, 17, AE_F_SET(x))
#define PREQ_IE_METRIC(x) 	u32_field_get(x, 21, AE_F_SET(x))
#define PREQ_IE_TARGET_F(x)	(*(AE_F_SET(x) ? x + 32 : x + 26))
#define PREQ_IE_TARGET_ADDR(x) 	(AE_F_SET(x) ? x + 33 : x + 27)
#define PREQ_IE_TARGET_SN(x) 	u32_field_get(x, 33, AE_F_SET(x))


#define PREP_IE_FLAGS(x)	PREQ_IE_FLAGS(x)
#define PREP_IE_HOPCOUNT(x)	PREQ_IE_HOPCOUNT(x)
#define PREP_IE_TTL(x)		PREQ_IE_TTL(x)
#define PREP_IE_ORIG_ADDR(x)	(AE_F_SET(x) ? x + 27 : x + 21)
#define PREP_IE_ORIG_SN(x)	u32_field_get(x, 27, AE_F_SET(x))
#define PREP_IE_LIFETIME(x)	u32_field_get(x, 13, AE_F_SET(x))
#define PREP_IE_METRIC(x)	u32_field_get(x, 17, AE_F_SET(x))
#define PREP_IE_TARGET_ADDR(x)	(x + 3)
#define PREP_IE_TARGET_SN(x)	u32_field_get(x, 9, 0)

#define PERR_IE_TTL(x)		(*(x))
#define PERR_IE_TARGET_FLAGS(x)	(*(x + 2))
#define PERR_IE_TARGET_ADDR(x)	(x + 3)
#define PERR_IE_TARGET_SN(x)	u32_field_get(x, 9, 0)
#define PERR_IE_TARGET_RCODE(x)	u16_field_get(x, 13, 0)

#define MSEC_TO_TU(x) (x*1000/1024)
#define SN_GT(x, y) ((long) (y) - (long) (x) < 0)
#define SN_LT(x, y) ((long) (x) - (long) (y) < 0)

#define net_traversal_jiffies(s) \
	msecs_to_jiffies(s->u.mesh.mshcfg.dot11MeshHWMPnetDiameterTraversalTime)
#define default_lifetime(s) \
	MSEC_TO_TU(s->u.mesh.mshcfg.dot11MeshHWMPactivePathTimeout)
#define min_preq_int_jiff(s) \
	(msecs_to_jiffies(s->u.mesh.mshcfg.dot11MeshHWMPpreqMinInterval))
#define max_preq_retries(s) (s->u.mesh.mshcfg.dot11MeshHWMPmaxPREQretries)
#define disc_timeout_jiff(s) \
	msecs_to_jiffies(sdata->u.mesh.mshcfg.min_discovery_timeout)

enum mpath_frame_type {
	MPATH_PREQ = 0,
	MPATH_PREP,
	MPATH_PERR,
	MPATH_RANN
};

static const u8 broadcast_addr[ETH_ALEN] = {0xff, 0xff, 0xff, 0xff, 0xff, 0xff};

static int mesh_path_sel_frame_tx(enum mpath_frame_type action, u8 flags,
		u8 *orig_addr, __le32 orig_sn, u8 target_flags, u8 *target,
		__le32 target_sn, const u8 *da, u8 hop_count, u8 ttl,
		__le32 lifetime, __le32 metric, __le32 preq_id,
		struct ieee80211_sub_if_data *sdata)
{
	struct ieee80211_local *local = sdata->local;
	struct sk_buff *skb = dev_alloc_skb(local->hw.extra_tx_headroom + 400);
	struct ieee80211_mgmt *mgmt;
	u8 *pos;
	int ie_len;

	if (!skb)
		return -1;
	skb_reserve(skb, local->hw.extra_tx_headroom);
	/* 25 is the size of the common mgmt part (24) plus the size of the
	 * common action part (1)
	 */
	mgmt = (struct ieee80211_mgmt *)
		skb_put(skb, 25 + sizeof(mgmt->u.action.u.mesh_action));
	memset(mgmt, 0, 25 + sizeof(mgmt->u.action.u.mesh_action));
	mgmt->frame_control = cpu_to_le16(IEEE80211_FTYPE_MGMT |
					  IEEE80211_STYPE_ACTION);

	memcpy(mgmt->da, da, ETH_ALEN);
	memcpy(mgmt->sa, sdata->vif.addr, ETH_ALEN);
	/* BSSID == SA */
	memcpy(mgmt->bssid, sdata->vif.addr, ETH_ALEN);
	mgmt->u.action.category = WLAN_CATEGORY_MESH_ACTION;
	mgmt->u.action.u.mesh_action.action_code =
					WLAN_MESH_ACTION_HWMP_PATH_SELECTION;

	switch (action) {
	case MPATH_PREQ:
		mhwmp_dbg("sending PREQ to %pM", target);
		ie_len = 37;
		pos = skb_put(skb, 2 + ie_len);
		*pos++ = WLAN_EID_PREQ;
		break;
	case MPATH_PREP:
		mhwmp_dbg("sending PREP to %pM", target);
		ie_len = 31;
		pos = skb_put(skb, 2 + ie_len);
		*pos++ = WLAN_EID_PREP;
		break;
	case MPATH_RANN:
		mhwmp_dbg("sending RANN from %pM", orig_addr);
		ie_len = sizeof(struct ieee80211_rann_ie);
		pos = skb_put(skb, 2 + ie_len);
		*pos++ = WLAN_EID_RANN;
		break;
	default:
		kfree_skb(skb);
		return -ENOTSUPP;
		break;
	}
	*pos++ = ie_len;
	*pos++ = flags;
	*pos++ = hop_count;
	*pos++ = ttl;
	if (action == MPATH_PREP) {
		memcpy(pos, target, ETH_ALEN);
		pos += ETH_ALEN;
		memcpy(pos, &target_sn, 4);
		pos += 4;
	} else {
		if (action == MPATH_PREQ) {
			memcpy(pos, &preq_id, 4);
			pos += 4;
		}
		memcpy(pos, orig_addr, ETH_ALEN);
		pos += ETH_ALEN;
		memcpy(pos, &orig_sn, 4);
		pos += 4;
	}
	memcpy(pos, &lifetime, 4);	/* interval for RANN */
	pos += 4;
	memcpy(pos, &metric, 4);
	pos += 4;
	if (action == MPATH_PREQ) {
		*pos++ = 1; /* destination count */
		*pos++ = target_flags;
		memcpy(pos, target, ETH_ALEN);
		pos += ETH_ALEN;
		memcpy(pos, &target_sn, 4);
		pos += 4;
	} else if (action == MPATH_PREP) {
		memcpy(pos, orig_addr, ETH_ALEN);
		pos += ETH_ALEN;
		memcpy(pos, &orig_sn, 4);
		pos += 4;
	}

	ieee80211_tx_skb(sdata, skb);
	return 0;
}


/*  Headroom is not adjusted.  Caller should ensure that skb has sufficient
 *  headroom in case the frame is encrypted. */
static void prepare_frame_for_deferred_tx(struct ieee80211_sub_if_data *sdata,
		struct sk_buff *skb)
{
	struct ieee80211_local *local = sdata->local;
	struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb);

	skb_set_mac_header(skb, 0);
	skb_set_network_header(skb, 0);
	skb_set_transport_header(skb, 0);

	/* Send all internal mgmt frames on VO. Accordingly set TID to 7. */
	skb_set_queue_mapping(skb, IEEE80211_AC_VO);
	skb->priority = 7;

	info->control.vif = &sdata->vif;
	ieee80211_set_qos_hdr(local, skb);
}

/**
 * mesh_send_path error - Sends a PERR mesh management frame
 *
 * @target: broken destination
 * @target_sn: SN of the broken destination
 * @target_rcode: reason code for this PERR
 * @ra: node this frame is addressed to
 *
 * Note: This function may be called with driver locks taken that the driver
 * also acquires in the TX path.  To avoid a deadlock we don't transmit the
 * frame directly but add it to the pending queue instead.
 */
int mesh_path_error_tx(u8 ttl, u8 *target, __le32 target_sn,
		       __le16 target_rcode, const u8 *ra,
		       struct ieee80211_sub_if_data *sdata)
{
	struct ieee80211_local *local = sdata->local;
	struct sk_buff *skb = dev_alloc_skb(local->hw.extra_tx_headroom + 400);
	struct ieee80211_mgmt *mgmt;
	u8 *pos;
	int ie_len;

	if (!skb)
		return -1;
	skb_reserve(skb, local->tx_headroom + local->hw.extra_tx_headroom);
	/* 25 is the size of the common mgmt part (24) plus the size of the
	 * common action part (1)
	 */
	mgmt = (struct ieee80211_mgmt *)
		skb_put(skb, 25 + sizeof(mgmt->u.action.u.mesh_action));
	memset(mgmt, 0, 25 + sizeof(mgmt->u.action.u.mesh_action));
	mgmt->frame_control = cpu_to_le16(IEEE80211_FTYPE_MGMT |
					  IEEE80211_STYPE_ACTION);

	memcpy(mgmt->da, ra, ETH_ALEN);
	memcpy(mgmt->sa, sdata->vif.addr, ETH_ALEN);
	/* BSSID == SA */
	memcpy(mgmt->bssid, sdata->vif.addr, ETH_ALEN);
	mgmt->u.action.category = WLAN_CATEGORY_MESH_ACTION;
	mgmt->u.action.u.mesh_action.action_code =
					WLAN_MESH_ACTION_HWMP_PATH_SELECTION;
	ie_len = 15;
	pos = skb_put(skb, 2 + ie_len);
	*pos++ = WLAN_EID_PERR;
	*pos++ = ie_len;
	/* ttl */
	*pos++ = ttl;
	/* number of destinations */
	*pos++ = 1;
	/*
	 * flags bit, bit 1 is unset if we know the sequence number and
	 * bit 2 is set if we have a reason code
	 */
	*pos = 0;
	if (!target_sn)
		*pos |= MP_F_USN;
	if (target_rcode)
		*pos |= MP_F_RCODE;
	pos++;
	memcpy(pos, target, ETH_ALEN);
	pos += ETH_ALEN;
	memcpy(pos, &target_sn, 4);
	pos += 4;
	memcpy(pos, &target_rcode, 2);

	/* see note in function header */
	prepare_frame_for_deferred_tx(sdata, skb);
	ieee80211_add_pending_skb(local, skb);
	return 0;
}

void ieee80211s_update_metric(struct ieee80211_local *local,
		struct sta_info *stainfo, struct sk_buff *skb)
{
	struct ieee80211_tx_info *txinfo = IEEE80211_SKB_CB(skb);
	struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) skb->data;
	int failed;

	if (!ieee80211_is_data(hdr->frame_control))
		return;
{'fraction_non_alphanumeric': 0.13726971581333178, 'fraction_numerical': 0.04323821700470739, 'mean_word_length': 4.684836471754212, 'pattern_counts': {'":': 0, '<': 19, '<?xml version=': 0, '>': 84, 'https://': 0, 'lorem ipsum': 0, 'www.': 0, 'xml': 0}, 'pii_count': 0, 'substrings_counts': 2, 'word_list_counts': {'cursed_substrings.json': 0, 'profanity_word_list.json': 0, 'sexual_word_list.json': 0, 'zh_pornsignals.json': 0}}
{'dir': 'git-commits-cleaned', 'id': '4705459', 'n_tokens_mistral': 8320, 'n_tokens_neox': 7478, 'n_words': 1678}