[deliverable/linux.git] / net / mac80211 / debugfs_netdev.c

/*
 * Copyright (c) 2006	Jiri Benc <jbenc@suse.cz>
 * Copyright 2007	Johannes Berg <johannes@sipsolutions.net>
 *
 * 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/kernel.h>
#include <linux/device.h>
#include <linux/if.h>
#include <linux/interrupt.h>
#include <linux/netdevice.h>
#include <linux/rtnetlink.h>
#include <linux/slab.h>
#include <linux/notifier.h>
#include <net/mac80211.h>
#include <net/cfg80211.h>
#include "ieee80211_i.h"
#include "rate.h"
#include "debugfs.h"
#include "debugfs_netdev.h"
#include "driver-ops.h"

static ssize_t ieee80211_if_read(
	struct ieee80211_sub_if_data *sdata,
	char __user *userbuf,
	size_t count, loff_t *ppos,
	ssize_t (*format)(const struct ieee80211_sub_if_data *, char *, int))
{
	char buf[70];
	ssize_t ret = -EINVAL;

	read_lock(&dev_base_lock);
	if (sdata->dev->reg_state == NETREG_REGISTERED)
		ret = (*format)(sdata, buf, sizeof(buf));
	read_unlock(&dev_base_lock);

	if (ret >= 0)
		ret = simple_read_from_buffer(userbuf, count, ppos, buf, ret);

	return ret;
}

static ssize_t ieee80211_if_write(
	struct ieee80211_sub_if_data *sdata,
	const char __user *userbuf,
	size_t count, loff_t *ppos,
	ssize_t (*write)(struct ieee80211_sub_if_data *, const char *, int))
{
	u8 *buf;
	ssize_t ret;

	buf = kmalloc(count, GFP_KERNEL);
	if (!buf)
		return -ENOMEM;

	ret = -EFAULT;
	if (copy_from_user(buf, userbuf, count))
		goto freebuf;

	ret = -ENODEV;
	rtnl_lock();
	if (sdata->dev->reg_state == NETREG_REGISTERED)
		ret = (*write)(sdata, buf, count);
	rtnl_unlock();

freebuf:
	kfree(buf);
	return ret;
}

#define IEEE80211_IF_FMT(name, field, format_string)			\
static ssize_t ieee80211_if_fmt_##name(					\
	const struct ieee80211_sub_if_data *sdata, char *buf,		\
	int buflen)							\
{									\
	return scnprintf(buf, buflen, format_string, sdata->field);	\
}
#define IEEE80211_IF_FMT_DEC(name, field)				\
		IEEE80211_IF_FMT(name, field, "%d\n")
#define IEEE80211_IF_FMT_HEX(name, field)				\
		IEEE80211_IF_FMT(name, field, "%#x\n")
#define IEEE80211_IF_FMT_LHEX(name, field)				\
		IEEE80211_IF_FMT(name, field, "%#lx\n")
#define IEEE80211_IF_FMT_SIZE(name, field)				\
		IEEE80211_IF_FMT(name, field, "%zd\n")

#define IEEE80211_IF_FMT_ATOMIC(name, field)				\
static ssize_t ieee80211_if_fmt_##name(					\
	const struct ieee80211_sub_if_data *sdata,			\
	char *buf, int buflen)						\
{									\
	return scnprintf(buf, buflen, "%d\n", atomic_read(&sdata->field));\
}

#define IEEE80211_IF_FMT_MAC(name, field)				\
static ssize_t ieee80211_if_fmt_##name(					\
	const struct ieee80211_sub_if_data *sdata, char *buf,		\
	int buflen)							\
{									\
	return scnprintf(buf, buflen, "%pM\n", sdata->field);		\
}

#define IEEE80211_IF_FMT_DEC_DIV_16(name, field)			\
static ssize_t ieee80211_if_fmt_##name(					\
	const struct ieee80211_sub_if_data *sdata,			\
	char *buf, int buflen)						\
{									\
	return scnprintf(buf, buflen, "%d\n", sdata->field / 16);	\
}

#define __IEEE80211_IF_FILE(name, _write)				\
static ssize_t ieee80211_if_read_##name(struct file *file,		\
					char __user *userbuf,		\
					size_t count, loff_t *ppos)	\
{									\
	return ieee80211_if_read(file->private_data,			\
				 userbuf, count, ppos,			\
				 ieee80211_if_fmt_##name);		\
}									\
static const struct file_operations name##_ops = {			\
	.read = ieee80211_if_read_##name,				\
	.write = (_write),						\
	.open = mac80211_open_file_generic,				\
	.llseek = generic_file_llseek,					\
}

#define __IEEE80211_IF_FILE_W(name)					\
static ssize_t ieee80211_if_write_##name(struct file *file,		\
					 const char __user *userbuf,	\
					 size_t count, loff_t *ppos)	\
{									\
	return ieee80211_if_write(file->private_data, userbuf, count,	\
				  ppos, ieee80211_if_parse_##name);	\
}									\
__IEEE80211_IF_FILE(name, ieee80211_if_write_##name)


#define IEEE80211_IF_FILE(name, field, format)				\
		IEEE80211_IF_FMT_##format(name, field)			\
		__IEEE80211_IF_FILE(name, NULL)

/* common attributes */
IEEE80211_IF_FILE(drop_unencrypted, drop_unencrypted, DEC);
IEEE80211_IF_FILE(rc_rateidx_mask_2ghz, rc_rateidx_mask[IEEE80211_BAND_2GHZ],
		  HEX);
IEEE80211_IF_FILE(rc_rateidx_mask_5ghz, rc_rateidx_mask[IEEE80211_BAND_5GHZ],
		  HEX);
IEEE80211_IF_FILE(flags, flags, HEX);
IEEE80211_IF_FILE(state, state, LHEX);
IEEE80211_IF_FILE(channel_type, vif.bss_conf.channel_type, DEC);

/* STA attributes */
IEEE80211_IF_FILE(bssid, u.mgd.bssid, MAC);
IEEE80211_IF_FILE(aid, u.mgd.aid, DEC);
IEEE80211_IF_FILE(last_beacon, u.mgd.last_beacon_signal, DEC);
IEEE80211_IF_FILE(ave_beacon, u.mgd.ave_beacon_signal, DEC_DIV_16);

static int ieee80211_set_smps(struct ieee80211_sub_if_data *sdata,
			      enum ieee80211_smps_mode smps_mode)
{
	struct ieee80211_local *local = sdata->local;
	int err;

	if (!(local->hw.flags & IEEE80211_HW_SUPPORTS_STATIC_SMPS) &&
	    smps_mode == IEEE80211_SMPS_STATIC)
		return -EINVAL;

	/* auto should be dynamic if in PS mode */
	if (!(local->hw.flags & IEEE80211_HW_SUPPORTS_DYNAMIC_SMPS) &&
	    (smps_mode == IEEE80211_SMPS_DYNAMIC ||
	     smps_mode == IEEE80211_SMPS_AUTOMATIC))
		return -EINVAL;

	/* supported only on managed interfaces for now */
	if (sdata->vif.type != NL80211_IFTYPE_STATION)
		return -EOPNOTSUPP;

	mutex_lock(&sdata->u.mgd.mtx);
	err = __ieee80211_request_smps(sdata, smps_mode);
	mutex_unlock(&sdata->u.mgd.mtx);

	return err;
}

static const char *smps_modes[IEEE80211_SMPS_NUM_MODES] = {
	[IEEE80211_SMPS_AUTOMATIC] = "auto",
	[IEEE80211_SMPS_OFF] = "off",
	[IEEE80211_SMPS_STATIC] = "static",
	[IEEE80211_SMPS_DYNAMIC] = "dynamic",
};

static ssize_t ieee80211_if_fmt_smps(const struct ieee80211_sub_if_data *sdata,
				     char *buf, int buflen)
{
	if (sdata->vif.type != NL80211_IFTYPE_STATION)
		return -EOPNOTSUPP;

	return snprintf(buf, buflen, "request: %s\nused: %s\n",
			smps_modes[sdata->u.mgd.req_smps],
			smps_modes[sdata->u.mgd.ap_smps]);
}

static ssize_t ieee80211_if_parse_smps(struct ieee80211_sub_if_data *sdata,
				       const char *buf, int buflen)
{
	enum ieee80211_smps_mode mode;

	for (mode = 0; mode < IEEE80211_SMPS_NUM_MODES; mode++) {
		if (strncmp(buf, smps_modes[mode], buflen) == 0) {
			int err = ieee80211_set_smps(sdata, mode);
			if (!err)
				return buflen;
			return err;
		}
	}

	return -EINVAL;
}

__IEEE80211_IF_FILE_W(smps);

static ssize_t ieee80211_if_fmt_tkip_mic_test(
	const struct ieee80211_sub_if_data *sdata, char *buf, int buflen)
{
	return -EOPNOTSUPP;
}

static int hwaddr_aton(const char *txt, u8 *addr)
{
	int i;

	for (i = 0; i < ETH_ALEN; i++) {
		int a, b;

		a = hex_to_bin(*txt++);
		if (a < 0)
			return -1;
		b = hex_to_bin(*txt++);
		if (b < 0)
			return -1;
		*addr++ = (a << 4) | b;
		if (i < 5 && *txt++ != ':')
			return -1;
	}

	return 0;
}

static ssize_t ieee80211_if_parse_tkip_mic_test(
	struct ieee80211_sub_if_data *sdata, const char *buf, int buflen)
{
	struct ieee80211_local *local = sdata->local;
	u8 addr[ETH_ALEN];
	struct sk_buff *skb;
	struct ieee80211_hdr *hdr;
	__le16 fc;

	/*
	 * Assume colon-delimited MAC address with possible white space
	 * following.
	 */
	if (buflen < 3 * ETH_ALEN - 1)
		return -EINVAL;
	if (hwaddr_aton(buf, addr) < 0)
		return -EINVAL;

	if (!ieee80211_sdata_running(sdata))
		return -ENOTCONN;

	skb = dev_alloc_skb(local->hw.extra_tx_headroom + 24 + 100);
	if (!skb)
		return -ENOMEM;
	skb_reserve(skb, local->hw.extra_tx_headroom);

	hdr = (struct ieee80211_hdr *) skb_put(skb, 24);
	memset(hdr, 0, 24);
	fc = cpu_to_le16(IEEE80211_FTYPE_DATA | IEEE80211_STYPE_DATA);

	switch (sdata->vif.type) {
	case NL80211_IFTYPE_AP:
		fc |= cpu_to_le16(IEEE80211_FCTL_FROMDS);
		/* DA BSSID SA */
		memcpy(hdr->addr1, addr, ETH_ALEN);
		memcpy(hdr->addr2, sdata->vif.addr, ETH_ALEN);
		memcpy(hdr->addr3, sdata->vif.addr, ETH_ALEN);
		break;
	case NL80211_IFTYPE_STATION:
		fc |= cpu_to_le16(IEEE80211_FCTL_TODS);
		/* BSSID SA DA */
		if (sdata->vif.bss_conf.bssid == NULL) {
			dev_kfree_skb(skb);
			return -ENOTCONN;
		}
		memcpy(hdr->addr1, sdata->vif.bss_conf.bssid, ETH_ALEN);
		memcpy(hdr->addr2, sdata->vif.addr, ETH_ALEN);
		memcpy(hdr->addr3, addr, ETH_ALEN);
		break;
	default:
		dev_kfree_skb(skb);
		return -EOPNOTSUPP;
	}
	hdr->frame_control = fc;

	/*
	 * Add some length to the test frame to make it look bit more valid.
	 * The exact contents does not matter since the recipient is required
	 * to drop this because of the Michael MIC failure.
	 */
	memset(skb_put(skb, 50), 0, 50);

	IEEE80211_SKB_CB(skb)->flags |= IEEE80211_TX_INTFL_TKIP_MIC_FAILURE;

	ieee80211_tx_skb(sdata, skb);

	return buflen;
}

__IEEE80211_IF_FILE_W(tkip_mic_test);

/* AP attributes */
IEEE80211_IF_FILE(num_sta_ps, u.ap.num_sta_ps, ATOMIC);
IEEE80211_IF_FILE(dtim_count, u.ap.dtim_count, DEC);

static ssize_t ieee80211_if_fmt_num_buffered_multicast(
	const struct ieee80211_sub_if_data *sdata, char *buf, int buflen)
{
	return scnprintf(buf, buflen, "%u\n",
			 skb_queue_len(&sdata->u.ap.ps_bc_buf));
}
__IEEE80211_IF_FILE(num_buffered_multicast, NULL);

/* IBSS attributes */
static ssize_t ieee80211_if_fmt_tsf(
	const struct ieee80211_sub_if_data *sdata, char *buf, int buflen)
{
	struct ieee80211_local *local = sdata->local;
	u64 tsf;

	tsf = drv_get_tsf(local, (struct ieee80211_sub_if_data *)sdata);

	return scnprintf(buf, buflen, "0x%016llx\n", (unsigned long long) tsf);
}

static ssize_t ieee80211_if_parse_tsf(
	struct ieee80211_sub_if_data *sdata, const char *buf, int buflen)
{
	struct ieee80211_local *local = sdata->local;
	unsigned long long tsf;
	int ret;

	if (strncmp(buf, "reset", 5) == 0) {
		if (local->ops->reset_tsf) {
			drv_reset_tsf(local, sdata);
			wiphy_info(local->hw.wiphy, "debugfs reset TSF\n");
		}
	} else {
		ret = kstrtoull(buf, 10, &tsf);
		if (ret < 0)
			return -EINVAL;
		if (local->ops->set_tsf) {
			drv_set_tsf(local, sdata, tsf);
			wiphy_info(local->hw.wiphy,
				   "debugfs set TSF to %#018llx\n", tsf);
		}
	}

	return buflen;
}
__IEEE80211_IF_FILE_W(tsf);


/* WDS attributes */
IEEE80211_IF_FILE(peer, u.wds.remote_addr, MAC);

#ifdef CONFIG_MAC80211_MESH
/* Mesh stats attributes */
IEEE80211_IF_FILE(fwded_mcast, u.mesh.mshstats.fwded_mcast, DEC);
IEEE80211_IF_FILE(fwded_unicast, u.mesh.mshstats.fwded_unicast, DEC);
IEEE80211_IF_FILE(fwded_frames, u.mesh.mshstats.fwded_frames, DEC);
IEEE80211_IF_FILE(dropped_frames_ttl, u.mesh.mshstats.dropped_frames_ttl, DEC);
IEEE80211_IF_FILE(dropped_frames_congestion,
		u.mesh.mshstats.dropped_frames_congestion, DEC);
IEEE80211_IF_FILE(dropped_frames_no_route,
		u.mesh.mshstats.dropped_frames_no_route, DEC);
IEEE80211_IF_FILE(estab_plinks, u.mesh.mshstats.estab_plinks, ATOMIC);

/* Mesh parameters */
IEEE80211_IF_FILE(dot11MeshMaxRetries,
		u.mesh.mshcfg.dot11MeshMaxRetries, DEC);
IEEE80211_IF_FILE(dot11MeshRetryTimeout,
		u.mesh.mshcfg.dot11MeshRetryTimeout, DEC);
IEEE80211_IF_FILE(dot11MeshConfirmTimeout,
		u.mesh.mshcfg.dot11MeshConfirmTimeout, DEC);
IEEE80211_IF_FILE(dot11MeshHoldingTimeout,
		u.mesh.mshcfg.dot11MeshHoldingTimeout, DEC);
IEEE80211_IF_FILE(dot11MeshTTL, u.mesh.mshcfg.dot11MeshTTL, DEC);
IEEE80211_IF_FILE(element_ttl, u.mesh.mshcfg.element_ttl, DEC);
IEEE80211_IF_FILE(auto_open_plinks, u.mesh.mshcfg.auto_open_plinks, DEC);
IEEE80211_IF_FILE(dot11MeshMaxPeerLinks,
		u.mesh.mshcfg.dot11MeshMaxPeerLinks, DEC);
IEEE80211_IF_FILE(dot11MeshHWMPactivePathTimeout,
		u.mesh.mshcfg.dot11MeshHWMPactivePathTimeout, DEC);
IEEE80211_IF_FILE(dot11MeshHWMPpreqMinInterval,
		u.mesh.mshcfg.dot11MeshHWMPpreqMinInterval, DEC);
IEEE80211_IF_FILE(dot11MeshHWMPnetDiameterTraversalTime,
		u.mesh.mshcfg.dot11MeshHWMPnetDiameterTraversalTime, DEC);
IEEE80211_IF_FILE(dot11MeshHWMPmaxPREQretries,
		u.mesh.mshcfg.dot11MeshHWMPmaxPREQretries, DEC);
IEEE80211_IF_FILE(path_refresh_time,
		u.mesh.mshcfg.path_refresh_time, DEC);
IEEE80211_IF_FILE(min_discovery_timeout,
		u.mesh.mshcfg.min_discovery_timeout, DEC);
IEEE80211_IF_FILE(dot11MeshHWMPRootMode,
		u.mesh.mshcfg.dot11MeshHWMPRootMode, DEC);
IEEE80211_IF_FILE(dot11MeshGateAnnouncementProtocol,
		u.mesh.mshcfg.dot11MeshGateAnnouncementProtocol, DEC);
IEEE80211_IF_FILE(dot11MeshHWMPRannInterval,
		u.mesh.mshcfg.dot11MeshHWMPRannInterval, DEC);
#endif


#define DEBUGFS_ADD(name) \
	debugfs_create_file(#name, 0400, sdata->debugfs.dir, \
			    sdata, &name##_ops);

#define DEBUGFS_ADD_MODE(name, mode) \
	debugfs_create_file(#name, mode, sdata->debugfs.dir, \
			    sdata, &name##_ops);

static void add_sta_files(struct ieee80211_sub_if_data *sdata)
{
	DEBUGFS_ADD(drop_unencrypted);
	DEBUGFS_ADD(flags);
	DEBUGFS_ADD(state);
	DEBUGFS_ADD(channel_type);
	DEBUGFS_ADD(rc_rateidx_mask_2ghz);
	DEBUGFS_ADD(rc_rateidx_mask_5ghz);

	DEBUGFS_ADD(bssid);
	DEBUGFS_ADD(aid);
	DEBUGFS_ADD(last_beacon);
	DEBUGFS_ADD(ave_beacon);
	DEBUGFS_ADD_MODE(smps, 0600);
	DEBUGFS_ADD_MODE(tkip_mic_test, 0200);
}

static void add_ap_files(struct ieee80211_sub_if_data *sdata)
{
	DEBUGFS_ADD(drop_unencrypted);
	DEBUGFS_ADD(flags);
	DEBUGFS_ADD(state);
	DEBUGFS_ADD(channel_type);
	DEBUGFS_ADD(rc_rateidx_mask_2ghz);
	DEBUGFS_ADD(rc_rateidx_mask_5ghz);

	DEBUGFS_ADD(num_sta_ps);
	DEBUGFS_ADD(dtim_count);
	DEBUGFS_ADD(num_buffered_multicast);
	DEBUGFS_ADD_MODE(tkip_mic_test, 0200);
}

static void add_ibss_files(struct ieee80211_sub_if_data *sdata)
{
	DEBUGFS_ADD_MODE(tsf, 0600);
}

static void add_wds_files(struct ieee80211_sub_if_data *sdata)
{
	DEBUGFS_ADD(drop_unencrypted);
	DEBUGFS_ADD(flags);
	DEBUGFS_ADD(state);
	DEBUGFS_ADD(channel_type);
	DEBUGFS_ADD(rc_rateidx_mask_2ghz);
	DEBUGFS_ADD(rc_rateidx_mask_5ghz);

	DEBUGFS_ADD(peer);
}

static void add_vlan_files(struct ieee80211_sub_if_data *sdata)
{
	DEBUGFS_ADD(drop_unencrypted);
	DEBUGFS_ADD(flags);
	DEBUGFS_ADD(state);
	DEBUGFS_ADD(channel_type);
	DEBUGFS_ADD(rc_rateidx_mask_2ghz);
	DEBUGFS_ADD(rc_rateidx_mask_5ghz);
}

static void add_monitor_files(struct ieee80211_sub_if_data *sdata)
{
	DEBUGFS_ADD(flags);
	DEBUGFS_ADD(state);
	DEBUGFS_ADD(channel_type);
}

#ifdef CONFIG_MAC80211_MESH

static void add_mesh_stats(struct ieee80211_sub_if_data *sdata)
{
	struct dentry *dir = debugfs_create_dir("mesh_stats",
						sdata->debugfs.dir);

#define MESHSTATS_ADD(name)\
	debugfs_create_file(#name, 0400, dir, sdata, &name##_ops);

	MESHSTATS_ADD(fwded_mcast);
	MESHSTATS_ADD(fwded_unicast);
	MESHSTATS_ADD(fwded_frames);
	MESHSTATS_ADD(dropped_frames_ttl);
	MESHSTATS_ADD(dropped_frames_no_route);
	MESHSTATS_ADD(dropped_frames_congestion);
	MESHSTATS_ADD(estab_plinks);
#undef MESHSTATS_ADD
}

static void add_mesh_config(struct ieee80211_sub_if_data *sdata)
{
	struct dentry *dir = debugfs_create_dir("mesh_config",
						sdata->debugfs.dir);

#define MESHPARAMS_ADD(name) \
	debugfs_create_file(#name, 0600, dir, sdata, &name##_ops);

	MESHPARAMS_ADD(dot11MeshMaxRetries);
	MESHPARAMS_ADD(dot11MeshRetryTimeout);
	MESHPARAMS_ADD(dot11MeshConfirmTimeout);
	MESHPARAMS_ADD(dot11MeshHoldingTimeout);
	MESHPARAMS_ADD(dot11MeshTTL);
	MESHPARAMS_ADD(element_ttl);
	MESHPARAMS_ADD(auto_open_plinks);
	MESHPARAMS_ADD(dot11MeshMaxPeerLinks);
	MESHPARAMS_ADD(dot11MeshHWMPactivePathTimeout);
	MESHPARAMS_ADD(dot11MeshHWMPpreqMinInterval);
	MESHPARAMS_ADD(dot11MeshHWMPnetDiameterTraversalTime);
	MESHPARAMS_ADD(dot11MeshHWMPmaxPREQretries);
	MESHPARAMS_ADD(path_refresh_time);
	MESHPARAMS_ADD(min_discovery_timeout);
	MESHPARAMS_ADD(dot11MeshHWMPRootMode);
	MESHPARAMS_ADD(dot11MeshHWMPRannInterval);
	MESHPARAMS_ADD(dot11MeshGateAnnouncementProtocol);
#undef MESHPARAMS_ADD
}
#endif

static void add_files(struct ieee80211_sub_if_data *sdata)
{
	if (!sdata->debugfs.dir)
		return;

	switch (sdata->vif.type) {
	case NL80211_IFTYPE_MESH_POINT:
#ifdef CONFIG_MAC80211_MESH
		add_mesh_stats(sdata);
		add_mesh_config(sdata);
#endif
		break;
	case NL80211_IFTYPE_STATION:
		add_sta_files(sdata);
		break;
	case NL80211_IFTYPE_ADHOC:
		add_ibss_files(sdata);
		break;
	case NL80211_IFTYPE_AP:
		add_ap_files(sdata);
		break;
	case NL80211_IFTYPE_WDS:
		add_wds_files(sdata);
		break;
	case NL80211_IFTYPE_MONITOR:
		add_monitor_files(sdata);
		break;
	case NL80211_IFTYPE_AP_VLAN:
		add_vlan_files(sdata);
		break;
	default:
		break;
	}
}

void ieee80211_debugfs_add_netdev(struct ieee80211_sub_if_data *sdata)
{
	char buf[10+IFNAMSIZ];

	sprintf(buf, "netdev:%s", sdata->name);
	sdata->debugfs.dir = debugfs_create_dir(buf,
		sdata->local->hw.wiphy->debugfsdir);
	if (sdata->debugfs.dir)
		sdata->debugfs.subdir_stations = debugfs_create_dir("stations",
			sdata->debugfs.dir);
	add_files(sdata);
}

void ieee80211_debugfs_remove_netdev(struct ieee80211_sub_if_data *sdata)
{
	if (!sdata->debugfs.dir)
		return;

	debugfs_remove_recursive(sdata->debugfs.dir);
	sdata->debugfs.dir = NULL;
}

void ieee80211_debugfs_rename_netdev(struct ieee80211_sub_if_data *sdata)
{
	struct dentry *dir;
	char buf[10 + IFNAMSIZ];

	dir = sdata->debugfs.dir;

	if (!dir)
		return;

	sprintf(buf, "netdev:%s", sdata->name);
	if (!debugfs_rename(dir->d_parent, dir, dir->d_parent, buf))
		printk(KERN_ERR "mac80211: debugfs: failed to rename debugfs "
		       "dir to %s\n", buf);
}
Commit	Line	Data
e9f207f0 JB	1	/*
	2	* Copyright (c) 2006 Jiri Benc <jbenc@suse.cz>
	3	* Copyright 2007 Johannes Berg <johannes@sipsolutions.net>
	4	*
	5	* This program is free software; you can redistribute it and/or modify
	6	* it under the terms of the GNU General Public License version 2 as
	7	* published by the Free Software Foundation.
	8	*/
	9
	10	#include <linux/kernel.h>
	11	#include <linux/device.h>
	12	#include <linux/if.h>
	13	#include <linux/interrupt.h>
	14	#include <linux/netdevice.h>
	15	#include <linux/rtnetlink.h>
5a0e3ad6	16	#include <linux/slab.h>
e9f207f0 JB	17	#include <linux/notifier.h>
	18	#include <net/mac80211.h>
	19	#include <net/cfg80211.h>
	20	#include "ieee80211_i.h"
2c8dccc7	21	#include "rate.h"
e9f207f0 JB	22	#include "debugfs.h"
e9f207f0 JB	23	#include "debugfs_netdev.h"
37a41b4a	24	#include "driver-ops.h"
e9f207f0 JB	25
	26	static ssize_t ieee80211_if_read(
	27	struct ieee80211_sub_if_data *sdata,
	28	char __user *userbuf,
	29	size_t count, loff_t *ppos,
	30	ssize_t (format)(const struct ieee80211_sub_if_data , char *, int))
	31	{
	32	char buf[70];
	33	ssize_t ret = -EINVAL;
	34
	35	read_lock(&dev_base_lock);
73bb3e4a	36	if (sdata->dev->reg_state == NETREG_REGISTERED)
e9f207f0	37	ret = (*format)(sdata, buf, sizeof(buf));
e9f207f0	38	read_unlock(&dev_base_lock);
73bb3e4a	39
681d1190	40	if (ret >= 0)
73bb3e4a LCC	41	ret = simple_read_from_buffer(userbuf, count, ppos, buf, ret);
73bb3e4a LCC	42
e9f207f0 JB	43	return ret;
	44	}
	45
0f78231b JB	46	static ssize_t ieee80211_if_write(
	47	struct ieee80211_sub_if_data *sdata,
	48	const char __user *userbuf,
	49	size_t count, loff_t *ppos,
	50	ssize_t (write)(struct ieee80211_sub_if_data , const char *, int))
	51	{
	52	u8 *buf;
51f5f8ca	53	ssize_t ret;
0f78231b	54
51f5f8ca	55	buf = kmalloc(count, GFP_KERNEL);
0f78231b JB	56	if (!buf)
	57	return -ENOMEM;
	58
51f5f8ca	59	ret = -EFAULT;
0f78231b	60	if (copy_from_user(buf, userbuf, count))
51f5f8ca	61	goto freebuf;
0f78231b	62
51f5f8ca	63	ret = -ENODEV;
0f78231b JB	64	rtnl_lock();
	65	if (sdata->dev->reg_state == NETREG_REGISTERED)
	66	ret = (*write)(sdata, buf, count);
	67	rtnl_unlock();
	68
51f5f8ca ED	69	freebuf:
51f5f8ca ED	70	kfree(buf);
0f78231b JB	71	return ret;
	72	}
	73
e9f207f0 JB	74	#define IEEE80211_IF_FMT(name, field, format_string) \
	75	static ssize_t ieee80211_if_fmt_##name( \
	76	const struct ieee80211_sub_if_data sdata, char buf, \
	77	int buflen) \
	78	{ \
	79	return scnprintf(buf, buflen, format_string, sdata->field); \
	80	}
	81	#define IEEE80211_IF_FMT_DEC(name, field) \
	82	IEEE80211_IF_FMT(name, field, "%d\n")
	83	#define IEEE80211_IF_FMT_HEX(name, field) \
	84	IEEE80211_IF_FMT(name, field, "%#x\n")
4914b3bb BG	85	#define IEEE80211_IF_FMT_LHEX(name, field) \
4914b3bb BG	86	IEEE80211_IF_FMT(name, field, "%#lx\n")
e9f207f0 JB	87	#define IEEE80211_IF_FMT_SIZE(name, field) \
	88	IEEE80211_IF_FMT(name, field, "%zd\n")
	89
	90	#define IEEE80211_IF_FMT_ATOMIC(name, field) \
	91	static ssize_t ieee80211_if_fmt_##name( \
	92	const struct ieee80211_sub_if_data *sdata, \
	93	char *buf, int buflen) \
	94	{ \
	95	return scnprintf(buf, buflen, "%d\n", atomic_read(&sdata->field));\
	96	}
	97
	98	#define IEEE80211_IF_FMT_MAC(name, field) \
	99	static ssize_t ieee80211_if_fmt_##name( \
	100	const struct ieee80211_sub_if_data sdata, char buf, \
	101	int buflen) \
	102	{ \
0c68ae26	103	return scnprintf(buf, buflen, "%pM\n", sdata->field); \
e9f207f0 JB	104	}
e9f207f0 JB	105
17e4ec14 JM	106	#define IEEE80211_IF_FMT_DEC_DIV_16(name, field) \
	107	static ssize_t ieee80211_if_fmt_##name( \
	108	const struct ieee80211_sub_if_data *sdata, \
	109	char *buf, int buflen) \
	110	{ \
	111	return scnprintf(buf, buflen, "%d\n", sdata->field / 16); \
	112	}
	113
0f78231b	114	#define __IEEE80211_IF_FILE(name, _write) \
e9f207f0 JB	115	static ssize_t ieee80211_if_read_##name(struct file *file, \
	116	char __user *userbuf, \
	117	size_t count, loff_t *ppos) \
	118	{ \
	119	return ieee80211_if_read(file->private_data, \
	120	userbuf, count, ppos, \
	121	ieee80211_if_fmt_##name); \
	122	} \
	123	static const struct file_operations name##_ops = { \
	124	.read = ieee80211_if_read_##name, \
0f78231b	125	.write = (_write), \
e9f207f0	126	.open = mac80211_open_file_generic, \
2b18ab36	127	.llseek = generic_file_llseek, \
e9f207f0 JB	128	}
e9f207f0 JB	129
0f78231b JB	130	#define __IEEE80211_IF_FILE_W(name) \
	131	static ssize_t ieee80211_if_write_##name(struct file *file, \
	132	const char __user *userbuf, \
	133	size_t count, loff_t *ppos) \
	134	{ \
	135	return ieee80211_if_write(file->private_data, userbuf, count, \
	136	ppos, ieee80211_if_parse_##name); \
	137	} \
	138	__IEEE80211_IF_FILE(name, ieee80211_if_write_##name)
	139
	140
e9f207f0 JB	141	#define IEEE80211_IF_FILE(name, field, format) \
e9f207f0 JB	142	IEEE80211_IF_FMT_##format(name, field) \
0f78231b	143	__IEEE80211_IF_FILE(name, NULL)
e9f207f0 JB	144
e9f207f0 JB	145	/* common attributes */
e9f207f0	146	IEEE80211_IF_FILE(drop_unencrypted, drop_unencrypted, DEC);
37eb0b16 JM	147	IEEE80211_IF_FILE(rc_rateidx_mask_2ghz, rc_rateidx_mask[IEEE80211_BAND_2GHZ],
	148	HEX);
	149	IEEE80211_IF_FILE(rc_rateidx_mask_5ghz, rc_rateidx_mask[IEEE80211_BAND_5GHZ],
	150	HEX);
4914b3bb BG	151	IEEE80211_IF_FILE(flags, flags, HEX);
4914b3bb BG	152	IEEE80211_IF_FILE(state, state, LHEX);
0fa025f0	153	IEEE80211_IF_FILE(channel_type, vif.bss_conf.channel_type, DEC);
e9f207f0	154
46900298	155	/* STA attributes */
46900298	156	IEEE80211_IF_FILE(bssid, u.mgd.bssid, MAC);
46900298	157	IEEE80211_IF_FILE(aid, u.mgd.aid, DEC);
17e4ec14 JM	158	IEEE80211_IF_FILE(last_beacon, u.mgd.last_beacon_signal, DEC);
17e4ec14 JM	159	IEEE80211_IF_FILE(ave_beacon, u.mgd.ave_beacon_signal, DEC_DIV_16);
e9f207f0	160
0f78231b JB	161	static int ieee80211_set_smps(struct ieee80211_sub_if_data *sdata,
	162	enum ieee80211_smps_mode smps_mode)
	163	{
	164	struct ieee80211_local *local = sdata->local;
	165	int err;
	166
	167	if (!(local->hw.flags & IEEE80211_HW_SUPPORTS_STATIC_SMPS) &&
	168	smps_mode == IEEE80211_SMPS_STATIC)
	169	return -EINVAL;
	170
	171	/* auto should be dynamic if in PS mode */
	172	if (!(local->hw.flags & IEEE80211_HW_SUPPORTS_DYNAMIC_SMPS) &&
	173	(smps_mode == IEEE80211_SMPS_DYNAMIC \|\|
	174	smps_mode == IEEE80211_SMPS_AUTOMATIC))
	175	return -EINVAL;
	176
	177	/* supported only on managed interfaces for now */
	178	if (sdata->vif.type != NL80211_IFTYPE_STATION)
	179	return -EOPNOTSUPP;
	180
243e6df4	181	mutex_lock(&sdata->u.mgd.mtx);
0f78231b	182	err = __ieee80211_request_smps(sdata, smps_mode);
243e6df4	183	mutex_unlock(&sdata->u.mgd.mtx);
0f78231b JB	184
	185	return err;
	186	}
	187
	188	static const char *smps_modes[IEEE80211_SMPS_NUM_MODES] = {
	189	[IEEE80211_SMPS_AUTOMATIC] = "auto",
	190	[IEEE80211_SMPS_OFF] = "off",
	191	[IEEE80211_SMPS_STATIC] = "static",
	192	[IEEE80211_SMPS_DYNAMIC] = "dynamic",
	193	};
	194
	195	static ssize_t ieee80211_if_fmt_smps(const struct ieee80211_sub_if_data *sdata,
	196	char *buf, int buflen)
	197	{
	198	if (sdata->vif.type != NL80211_IFTYPE_STATION)
	199	return -EOPNOTSUPP;
	200
	201	return snprintf(buf, buflen, "request: %s\nused: %s\n",
	202	smps_modes[sdata->u.mgd.req_smps],
	203	smps_modes[sdata->u.mgd.ap_smps]);
	204	}
	205
	206	static ssize_t ieee80211_if_parse_smps(struct ieee80211_sub_if_data *sdata,
	207	const char *buf, int buflen)
	208	{
	209	enum ieee80211_smps_mode mode;
	210
	211	for (mode = 0; mode < IEEE80211_SMPS_NUM_MODES; mode++) {
	212	if (strncmp(buf, smps_modes[mode], buflen) == 0) {
	213	int err = ieee80211_set_smps(sdata, mode);
	214	if (!err)
	215	return buflen;
	216	return err;
	217	}
	218	}
	219
	220	return -EINVAL;
	221	}
	222
	223	__IEEE80211_IF_FILE_W(smps);
	224
681d1190 JM	225	static ssize_t ieee80211_if_fmt_tkip_mic_test(
	226	const struct ieee80211_sub_if_data sdata, char buf, int buflen)
	227	{
	228	return -EOPNOTSUPP;
	229	}
	230
	231	static int hwaddr_aton(const char txt, u8 addr)
	232	{
	233	int i;
	234
	235	for (i = 0; i < ETH_ALEN; i++) {
	236	int a, b;
	237
	238	a = hex_to_bin(*txt++);
	239	if (a < 0)
	240	return -1;
	241	b = hex_to_bin(*txt++);
	242	if (b < 0)
	243	return -1;
	244	*addr++ = (a << 4) \| b;
	245	if (i < 5 && *txt++ != ':')
	246	return -1;
	247	}
	248
	249	return 0;
	250	}
	251
	252	static ssize_t ieee80211_if_parse_tkip_mic_test(
	253	struct ieee80211_sub_if_data sdata, const char buf, int buflen)
	254	{
	255	struct ieee80211_local *local = sdata->local;
	256	u8 addr[ETH_ALEN];
	257	struct sk_buff *skb;
	258	struct ieee80211_hdr *hdr;
	259	__le16 fc;
	260
	261	/*
	262	* Assume colon-delimited MAC address with possible white space
	263	* following.
	264	*/
	265	if (buflen < 3 * ETH_ALEN - 1)
	266	return -EINVAL;
	267	if (hwaddr_aton(buf, addr) < 0)
	268	return -EINVAL;
	269
	270	if (!ieee80211_sdata_running(sdata))
	271	return -ENOTCONN;
	272
	273	skb = dev_alloc_skb(local->hw.extra_tx_headroom + 24 + 100);
	274	if (!skb)
	275	return -ENOMEM;
	276	skb_reserve(skb, local->hw.extra_tx_headroom);
	277
	278	hdr = (struct ieee80211_hdr *) skb_put(skb, 24);
	279	memset(hdr, 0, 24);
	280	fc = cpu_to_le16(IEEE80211_FTYPE_DATA \| IEEE80211_STYPE_DATA);
	281
	282	switch (sdata->vif.type) {
	283	case NL80211_IFTYPE_AP:
	284	fc \|= cpu_to_le16(IEEE80211_FCTL_FROMDS);
	285	/* DA BSSID SA */
	286	memcpy(hdr->addr1, addr, ETH_ALEN);
	287	memcpy(hdr->addr2, sdata->vif.addr, ETH_ALEN);
	288	memcpy(hdr->addr3, sdata->vif.addr, ETH_ALEN);
289	break;
290	case NL80211_IFTYPE_STATION:
291	fc \|= cpu_to_le16(IEEE80211_FCTL_TODS);
292	/* BSSID SA DA */
293	if (sdata->vif.bss_conf.bssid == NULL) {
294	dev_kfree_skb(skb);
295	return -ENOTCONN;
296	}
297	memcpy(hdr->addr1, sdata->vif.bss_conf.bssid, ETH_ALEN);
298	memcpy(hdr->addr2, sdata->vif.addr, ETH_ALEN);
299	memcpy(hdr->addr3, addr, ETH_ALEN);
300	break;
301	default:
302	dev_kfree_skb(skb);
303	return -EOPNOTSUPP;
304	}
305	hdr->frame_control = fc;
306
307	/*
308	* Add some length to the test frame to make it look bit more valid.
309	* The exact contents does not matter since the recipient is required
310	* to drop this because of the Michael MIC failure.
311	*/
312	memset(skb_put(skb, 50), 0, 50);
313
314	IEEE80211_SKB_CB(skb)->flags \|= IEEE80211_TX_INTFL_TKIP_MIC_FAILURE;
315
316	ieee80211_tx_skb(sdata, skb);
317
318	return buflen;
319	}
320
321	__IEEE80211_IF_FILE_W(tkip_mic_test);
322
e9f207f0 JB	323	/* AP attributes */
e9f207f0 JB	324	IEEE80211_IF_FILE(num_sta_ps, u.ap.num_sta_ps, ATOMIC);
e9f207f0	325	IEEE80211_IF_FILE(dtim_count, u.ap.dtim_count, DEC);
e9f207f0 JB	326
	327	static ssize_t ieee80211_if_fmt_num_buffered_multicast(
	328	const struct ieee80211_sub_if_data sdata, char buf, int buflen)
	329	{
	330	return scnprintf(buf, buflen, "%u\n",
	331	skb_queue_len(&sdata->u.ap.ps_bc_buf));
	332	}
0f78231b	333	__IEEE80211_IF_FILE(num_buffered_multicast, NULL);
e9f207f0	334
37a41b4a EP	335	/* IBSS attributes */
	336	static ssize_t ieee80211_if_fmt_tsf(
	337	const struct ieee80211_sub_if_data sdata, char buf, int buflen)
	338	{
	339	struct ieee80211_local *local = sdata->local;
	340	u64 tsf;
	341
	342	tsf = drv_get_tsf(local, (struct ieee80211_sub_if_data *)sdata);
	343
	344	return scnprintf(buf, buflen, "0x%016llx\n", (unsigned long long) tsf);
	345	}
	346
	347	static ssize_t ieee80211_if_parse_tsf(
	348	struct ieee80211_sub_if_data sdata, const char buf, int buflen)
	349	{
	350	struct ieee80211_local *local = sdata->local;
	351	unsigned long long tsf;
	352	int ret;
	353
	354	if (strncmp(buf, "reset", 5) == 0) {
	355	if (local->ops->reset_tsf) {
	356	drv_reset_tsf(local, sdata);
	357	wiphy_info(local->hw.wiphy, "debugfs reset TSF\n");
	358	}
	359	} else {
	360	ret = kstrtoull(buf, 10, &tsf);
	361	if (ret < 0)
	362	return -EINVAL;
	363	if (local->ops->set_tsf) {
	364	drv_set_tsf(local, sdata, tsf);
	365	wiphy_info(local->hw.wiphy,
	366	"debugfs set TSF to %#018llx\n", tsf);
	367	}
	368	}
	369
	370	return buflen;
	371	}
	372	__IEEE80211_IF_FILE_W(tsf);
	373
	374
e9f207f0 JB	375	/* WDS attributes */
	376	IEEE80211_IF_FILE(peer, u.wds.remote_addr, MAC);
	377
9f42f607 LCC	378	#ifdef CONFIG_MAC80211_MESH
9f42f607 LCC	379	/* Mesh stats attributes */
c8a61a7d DW	380	IEEE80211_IF_FILE(fwded_mcast, u.mesh.mshstats.fwded_mcast, DEC);
c8a61a7d DW	381	IEEE80211_IF_FILE(fwded_unicast, u.mesh.mshstats.fwded_unicast, DEC);
472dbc45 JB	382	IEEE80211_IF_FILE(fwded_frames, u.mesh.mshstats.fwded_frames, DEC);
472dbc45 JB	383	IEEE80211_IF_FILE(dropped_frames_ttl, u.mesh.mshstats.dropped_frames_ttl, DEC);
cfee66b0 JC	384	IEEE80211_IF_FILE(dropped_frames_congestion,
cfee66b0 JC	385	u.mesh.mshstats.dropped_frames_congestion, DEC);
9f42f607	386	IEEE80211_IF_FILE(dropped_frames_no_route,
472dbc45 JB	387	u.mesh.mshstats.dropped_frames_no_route, DEC);
472dbc45 JB	388	IEEE80211_IF_FILE(estab_plinks, u.mesh.mshstats.estab_plinks, ATOMIC);
9f42f607 LCC	389
9f42f607 LCC	390	/* Mesh parameters */
36ff382d JB	391	IEEE80211_IF_FILE(dot11MeshMaxRetries,
	392	u.mesh.mshcfg.dot11MeshMaxRetries, DEC);
	393	IEEE80211_IF_FILE(dot11MeshRetryTimeout,
	394	u.mesh.mshcfg.dot11MeshRetryTimeout, DEC);
	395	IEEE80211_IF_FILE(dot11MeshConfirmTimeout,
	396	u.mesh.mshcfg.dot11MeshConfirmTimeout, DEC);
	397	IEEE80211_IF_FILE(dot11MeshHoldingTimeout,
	398	u.mesh.mshcfg.dot11MeshHoldingTimeout, DEC);
	399	IEEE80211_IF_FILE(dot11MeshTTL, u.mesh.mshcfg.dot11MeshTTL, DEC);
45904f21	400	IEEE80211_IF_FILE(element_ttl, u.mesh.mshcfg.element_ttl, DEC);
36ff382d JB	401	IEEE80211_IF_FILE(auto_open_plinks, u.mesh.mshcfg.auto_open_plinks, DEC);
	402	IEEE80211_IF_FILE(dot11MeshMaxPeerLinks,
	403	u.mesh.mshcfg.dot11MeshMaxPeerLinks, DEC);
	404	IEEE80211_IF_FILE(dot11MeshHWMPactivePathTimeout,
	405	u.mesh.mshcfg.dot11MeshHWMPactivePathTimeout, DEC);
	406	IEEE80211_IF_FILE(dot11MeshHWMPpreqMinInterval,
	407	u.mesh.mshcfg.dot11MeshHWMPpreqMinInterval, DEC);
	408	IEEE80211_IF_FILE(dot11MeshHWMPnetDiameterTraversalTime,
	409	u.mesh.mshcfg.dot11MeshHWMPnetDiameterTraversalTime, DEC);
	410	IEEE80211_IF_FILE(dot11MeshHWMPmaxPREQretries,
	411	u.mesh.mshcfg.dot11MeshHWMPmaxPREQretries, DEC);
	412	IEEE80211_IF_FILE(path_refresh_time,
	413	u.mesh.mshcfg.path_refresh_time, DEC);
	414	IEEE80211_IF_FILE(min_discovery_timeout,
	415	u.mesh.mshcfg.min_discovery_timeout, DEC);
63c5723b RP	416	IEEE80211_IF_FILE(dot11MeshHWMPRootMode,
63c5723b RP	417	u.mesh.mshcfg.dot11MeshHWMPRootMode, DEC);
16dd7267 JC	418	IEEE80211_IF_FILE(dot11MeshGateAnnouncementProtocol,
16dd7267 JC	419	u.mesh.mshcfg.dot11MeshGateAnnouncementProtocol, DEC);
0507e159 JC	420	IEEE80211_IF_FILE(dot11MeshHWMPRannInterval,
0507e159 JC	421	u.mesh.mshcfg.dot11MeshHWMPRannInterval, DEC);
9f42f607 LCC	422	#endif
	423
	424
2d46d7c1	425	#define DEBUGFS_ADD(name) \
7bcfaf2f JB	426	debugfs_create_file(#name, 0400, sdata->debugfs.dir, \
7bcfaf2f JB	427	sdata, &name##_ops);
e9f207f0	428
0f78231b JB	429	#define DEBUGFS_ADD_MODE(name, mode) \
	430	debugfs_create_file(#name, mode, sdata->debugfs.dir, \
	431	sdata, &name##_ops);
	432
e9f207f0 JB	433	static void add_sta_files(struct ieee80211_sub_if_data *sdata)
e9f207f0 JB	434	{
2d46d7c1	435	DEBUGFS_ADD(drop_unencrypted);
4914b3bb BG	436	DEBUGFS_ADD(flags);
4914b3bb BG	437	DEBUGFS_ADD(state);
0fa025f0	438	DEBUGFS_ADD(channel_type);
2d46d7c1 JB	439	DEBUGFS_ADD(rc_rateidx_mask_2ghz);
2d46d7c1 JB	440	DEBUGFS_ADD(rc_rateidx_mask_5ghz);
3e122be0	441
2d46d7c1 JB	442	DEBUGFS_ADD(bssid);
2d46d7c1 JB	443	DEBUGFS_ADD(aid);
17e4ec14 JM	444	DEBUGFS_ADD(last_beacon);
17e4ec14 JM	445	DEBUGFS_ADD(ave_beacon);
0f78231b	446	DEBUGFS_ADD_MODE(smps, 0600);
681d1190	447	DEBUGFS_ADD_MODE(tkip_mic_test, 0200);
e9f207f0 JB	448	}
	449
	450	static void add_ap_files(struct ieee80211_sub_if_data *sdata)
	451	{
2d46d7c1	452	DEBUGFS_ADD(drop_unencrypted);
4914b3bb BG	453	DEBUGFS_ADD(flags);
4914b3bb BG	454	DEBUGFS_ADD(state);
0fa025f0	455	DEBUGFS_ADD(channel_type);
2d46d7c1 JB	456	DEBUGFS_ADD(rc_rateidx_mask_2ghz);
2d46d7c1 JB	457	DEBUGFS_ADD(rc_rateidx_mask_5ghz);
3e122be0	458
2d46d7c1 JB	459	DEBUGFS_ADD(num_sta_ps);
	460	DEBUGFS_ADD(dtim_count);
	461	DEBUGFS_ADD(num_buffered_multicast);
681d1190	462	DEBUGFS_ADD_MODE(tkip_mic_test, 0200);
e9f207f0 JB	463	}
e9f207f0 JB	464
37a41b4a EP	465	static void add_ibss_files(struct ieee80211_sub_if_data *sdata)
	466	{
	467	DEBUGFS_ADD_MODE(tsf, 0600);
	468	}
	469
e9f207f0 JB	470	static void add_wds_files(struct ieee80211_sub_if_data *sdata)
e9f207f0 JB	471	{
2d46d7c1	472	DEBUGFS_ADD(drop_unencrypted);
4914b3bb BG	473	DEBUGFS_ADD(flags);
4914b3bb BG	474	DEBUGFS_ADD(state);
0fa025f0	475	DEBUGFS_ADD(channel_type);
2d46d7c1 JB	476	DEBUGFS_ADD(rc_rateidx_mask_2ghz);
2d46d7c1 JB	477	DEBUGFS_ADD(rc_rateidx_mask_5ghz);
3e122be0	478
2d46d7c1	479	DEBUGFS_ADD(peer);
e9f207f0 JB	480	}
	481
	482	static void add_vlan_files(struct ieee80211_sub_if_data *sdata)
	483	{
2d46d7c1	484	DEBUGFS_ADD(drop_unencrypted);
4914b3bb BG	485	DEBUGFS_ADD(flags);
4914b3bb BG	486	DEBUGFS_ADD(state);
0fa025f0	487	DEBUGFS_ADD(channel_type);
2d46d7c1 JB	488	DEBUGFS_ADD(rc_rateidx_mask_2ghz);
2d46d7c1 JB	489	DEBUGFS_ADD(rc_rateidx_mask_5ghz);
e9f207f0 JB	490	}
	491
	492	static void add_monitor_files(struct ieee80211_sub_if_data *sdata)
	493	{
4914b3bb BG	494	DEBUGFS_ADD(flags);
4914b3bb BG	495	DEBUGFS_ADD(state);
0fa025f0	496	DEBUGFS_ADD(channel_type);
e9f207f0 JB	497	}
e9f207f0 JB	498
9f42f607	499	#ifdef CONFIG_MAC80211_MESH
9f42f607 LCC	500
	501	static void add_mesh_stats(struct ieee80211_sub_if_data *sdata)
	502	{
7bcfaf2f JB	503	struct dentry *dir = debugfs_create_dir("mesh_stats",
	504	sdata->debugfs.dir);
	505
	506	#define MESHSTATS_ADD(name)\
	507	debugfs_create_file(#name, 0400, dir, sdata, &name##_ops);
	508
c8a61a7d DW	509	MESHSTATS_ADD(fwded_mcast);
c8a61a7d DW	510	MESHSTATS_ADD(fwded_unicast);
9f42f607 LCC	511	MESHSTATS_ADD(fwded_frames);
	512	MESHSTATS_ADD(dropped_frames_ttl);
	513	MESHSTATS_ADD(dropped_frames_no_route);
cfee66b0	514	MESHSTATS_ADD(dropped_frames_congestion);
9f42f607	515	MESHSTATS_ADD(estab_plinks);
7bcfaf2f	516	#undef MESHSTATS_ADD
9f42f607 LCC	517	}
9f42f607 LCC	518
9f42f607 LCC	519	static void add_mesh_config(struct ieee80211_sub_if_data *sdata)
9f42f607 LCC	520	{
7bcfaf2f JB	521	struct dentry *dir = debugfs_create_dir("mesh_config",
	522	sdata->debugfs.dir);
	523
	524	#define MESHPARAMS_ADD(name) \
	525	debugfs_create_file(#name, 0600, dir, sdata, &name##_ops);
	526
9f42f607 LCC	527	MESHPARAMS_ADD(dot11MeshMaxRetries);
	528	MESHPARAMS_ADD(dot11MeshRetryTimeout);
	529	MESHPARAMS_ADD(dot11MeshConfirmTimeout);
	530	MESHPARAMS_ADD(dot11MeshHoldingTimeout);
	531	MESHPARAMS_ADD(dot11MeshTTL);
45904f21	532	MESHPARAMS_ADD(element_ttl);
9f42f607 LCC	533	MESHPARAMS_ADD(auto_open_plinks);
	534	MESHPARAMS_ADD(dot11MeshMaxPeerLinks);
	535	MESHPARAMS_ADD(dot11MeshHWMPactivePathTimeout);
	536	MESHPARAMS_ADD(dot11MeshHWMPpreqMinInterval);
	537	MESHPARAMS_ADD(dot11MeshHWMPnetDiameterTraversalTime);
	538	MESHPARAMS_ADD(dot11MeshHWMPmaxPREQretries);
	539	MESHPARAMS_ADD(path_refresh_time);
	540	MESHPARAMS_ADD(min_discovery_timeout);
699403db	541	MESHPARAMS_ADD(dot11MeshHWMPRootMode);
0507e159	542	MESHPARAMS_ADD(dot11MeshHWMPRannInterval);
16dd7267	543	MESHPARAMS_ADD(dot11MeshGateAnnouncementProtocol);
7bcfaf2f	544	#undef MESHPARAMS_ADD
9f42f607 LCC	545	}
	546	#endif
	547
e9f207f0 JB	548	static void add_files(struct ieee80211_sub_if_data *sdata)
e9f207f0 JB	549	{
7bcfaf2f	550	if (!sdata->debugfs.dir)
e9f207f0 JB	551	return;
e9f207f0 JB	552
51fb61e7	553	switch (sdata->vif.type) {
05c914fe	554	case NL80211_IFTYPE_MESH_POINT:
9f42f607 LCC	555	#ifdef CONFIG_MAC80211_MESH
	556	add_mesh_stats(sdata);
	557	add_mesh_config(sdata);
	558	#endif
472dbc45	559	break;
05c914fe	560	case NL80211_IFTYPE_STATION:
e9f207f0 JB	561	add_sta_files(sdata);
e9f207f0 JB	562	break;
46900298	563	case NL80211_IFTYPE_ADHOC:
37a41b4a	564	add_ibss_files(sdata);
46900298	565	break;
05c914fe	566	case NL80211_IFTYPE_AP:
e9f207f0 JB	567	add_ap_files(sdata);
e9f207f0 JB	568	break;
05c914fe	569	case NL80211_IFTYPE_WDS:
e9f207f0 JB	570	add_wds_files(sdata);
e9f207f0 JB	571	break;
05c914fe	572	case NL80211_IFTYPE_MONITOR:
e9f207f0 JB	573	add_monitor_files(sdata);
e9f207f0 JB	574	break;
05c914fe	575	case NL80211_IFTYPE_AP_VLAN:
e9f207f0 JB	576	add_vlan_files(sdata);
	577	break;
	578	default:
	579	break;
	580	}
	581	}
	582
e9f207f0 JB	583	void ieee80211_debugfs_add_netdev(struct ieee80211_sub_if_data *sdata)
	584	{
	585	char buf[10+IFNAMSIZ];
	586
47846c9b	587	sprintf(buf, "netdev:%s", sdata->name);
7bcfaf2f	588	sdata->debugfs.dir = debugfs_create_dir(buf,
e9f207f0	589	sdata->local->hw.wiphy->debugfsdir);
295bafb4 BG	590	if (sdata->debugfs.dir)
	591	sdata->debugfs.subdir_stations = debugfs_create_dir("stations",
	592	sdata->debugfs.dir);
75636525	593	add_files(sdata);
e9f207f0 JB	594	}
	595
	596	void ieee80211_debugfs_remove_netdev(struct ieee80211_sub_if_data *sdata)
	597	{
7bcfaf2f JB	598	if (!sdata->debugfs.dir)
	599	return;
	600
	601	debugfs_remove_recursive(sdata->debugfs.dir);
	602	sdata->debugfs.dir = NULL;
e9f207f0 JB	603	}
e9f207f0 JB	604
47846c9b	605	void ieee80211_debugfs_rename_netdev(struct ieee80211_sub_if_data *sdata)
e9f207f0	606	{
7c8081eb	607	struct dentry *dir;
47846c9b	608	char buf[10 + IFNAMSIZ];
3e122be0	609
7bcfaf2f	610	dir = sdata->debugfs.dir;
c74e90a9 JB	611
c74e90a9 JB	612	if (!dir)
47846c9b	613	return;
c74e90a9	614
47846c9b	615	sprintf(buf, "netdev:%s", sdata->name);
7c8081eb JB	616	if (!debugfs_rename(dir->d_parent, dir, dir->d_parent, buf))
	617	printk(KERN_ERR "mac80211: debugfs: failed to rename debugfs "
	618	"dir to %s\n", buf);
e9f207f0	619	}