/* * 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/notifier.h>#include <net/mac80211.h>#include <net/cfg80211.h>#include "ieee80211_i.h"#include "rate.h"#include "debugfs.h"#include "debugfs_netdev.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 != -EINVAL)		ret = simple_read_from_buffer(userbuf, count, ppos, buf, ret); 	return ret;} #ifdef CONFIG_MAC80211_MESHstatic ssize_t ieee80211_if_write(	struct ieee80211_sub_if_data *sdata,	char const __user *userbuf,	size_t count, loff_t *ppos,	int (*format)(struct ieee80211_sub_if_data *, char *)){	char buf[10];	int buf_size; 	memset(buf, 0x00, sizeof(buf));	buf_size = min(count, (sizeof(buf)-1));	if (copy_from_user(buf, userbuf, buf_size))		return count;	read_lock(&dev_base_lock);	if (sdata->dev->reg_state == NETREG_REGISTERED)		(*format)(sdata, buf);	read_unlock(&dev_base_lock); 	return count;}#endif #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_WFMT(name, field, type)				\static int ieee80211_if_wfmt_##name(					\	struct ieee80211_sub_if_data *sdata, char *buf)			\{									\	unsigned long tmp;						\	char *endp;							\									\	tmp = simple_strtoul(buf, &endp, 0);				\	if ((endp == buf) || ((type)tmp != tmp))			\		return -EINVAL;						\	sdata->field = tmp;						\	return 0;							\}#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_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)							\{									\	DECLARE_MAC_BUF(mac);						\	return scnprintf(buf, buflen, "%s\n", print_mac(mac, sdata->field));\} #define __IEEE80211_IF_FILE(name)					\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,				\	.open = mac80211_open_file_generic,				\} #define IEEE80211_IF_FILE(name, field, format)				\		IEEE80211_IF_FMT_##format(name, field)			\		__IEEE80211_IF_FILE(name) #define __IEEE80211_IF_WFILE(name)					\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 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_wfmt_##name);		\}									\static const struct file_operations name##_ops = {			\	.read = ieee80211_if_read_##name,				\	.write = ieee80211_if_write_##name,				\	.open = mac80211_open_file_generic,				\} #define IEEE80211_IF_WFILE(name, field, format, type)			\		IEEE80211_IF_FMT_##format(name, field)			\		IEEE80211_IF_WFMT(name, field, type)			\		__IEEE80211_IF_WFILE(name) /* common attributes */IEEE80211_IF_FILE(channel_use, channel_use, DEC);IEEE80211_IF_FILE(drop_unencrypted, drop_unencrypted, DEC); /* STA/IBSS attributes */IEEE80211_IF_FILE(state, u.sta.state, DEC);IEEE80211_IF_FILE(bssid, u.sta.bssid, MAC);IEEE80211_IF_FILE(prev_bssid, u.sta.prev_bssid, MAC);IEEE80211_IF_FILE(ssid_len, u.sta.ssid_len, SIZE);IEEE80211_IF_FILE(aid, u.sta.aid, DEC);IEEE80211_IF_FILE(ap_capab, u.sta.ap_capab, HEX);IEEE80211_IF_FILE(capab, u.sta.capab, HEX);IEEE80211_IF_FILE(extra_ie_len, u.sta.extra_ie_len, SIZE);IEEE80211_IF_FILE(auth_tries, u.sta.auth_tries, DEC);IEEE80211_IF_FILE(assoc_tries, u.sta.assoc_tries, DEC);IEEE80211_IF_FILE(auth_algs, u.sta.auth_algs, HEX);IEEE80211_IF_FILE(auth_alg, u.sta.auth_alg, DEC);IEEE80211_IF_FILE(auth_transaction, u.sta.auth_transaction, DEC);IEEE80211_IF_FILE(num_beacons_sta, u.sta.num_beacons, DEC); static ssize_t ieee80211_if_fmt_flags(	const struct ieee80211_sub_if_data *sdata, char *buf, int buflen){	return scnprintf(buf, buflen, "%s%s%s%s%s%s%s\n",		 sdata->u.sta.flags & IEEE80211_STA_SSID_SET ? "SSID\n" : "",		 sdata->u.sta.flags & IEEE80211_STA_BSSID_SET ? "BSSID\n" : "",		 sdata->u.sta.flags & IEEE80211_STA_PREV_BSSID_SET ? "prev BSSID\n" : "",		 sdata->u.sta.flags & IEEE80211_STA_AUTHENTICATED ? "AUTH\n" : "",		 sdata->u.sta.flags & IEEE80211_STA_ASSOCIATED ? "ASSOC\n" : "",		 sdata->u.sta.flags & IEEE80211_STA_PROBEREQ_POLL ? "PROBEREQ POLL\n" : "",		 sdata->bss_conf.use_cts_prot ? "CTS prot\n" : "");}__IEEE80211_IF_FILE(flags); /* AP attributes */IEEE80211_IF_FILE(num_sta_ps, u.ap.num_sta_ps, ATOMIC);IEEE80211_IF_FILE(dtim_count, u.ap.dtim_count, DEC);IEEE80211_IF_FILE(num_beacons, u.ap.num_beacons, DEC);IEEE80211_IF_FILE(force_unicast_rateidx, u.ap.force_unicast_rateidx, DEC);IEEE80211_IF_FILE(max_ratectrl_rateidx, u.ap.max_ratectrl_rateidx, 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); /* WDS attributes */IEEE80211_IF_FILE(peer, u.wds.remote_addr, MAC); #ifdef CONFIG_MAC80211_MESH/* Mesh stats attributes */IEEE80211_IF_FILE(fwded_frames, u.sta.mshstats.fwded_frames, DEC);IEEE80211_IF_FILE(dropped_frames_ttl, u.sta.mshstats.dropped_frames_ttl, DEC);IEEE80211_IF_FILE(dropped_frames_no_route,		u.sta.mshstats.dropped_frames_no_route, DEC);IEEE80211_IF_FILE(estab_plinks, u.sta.mshstats.estab_plinks, ATOMIC); /* Mesh parameters */IEEE80211_IF_WFILE(dot11MeshMaxRetries,		u.sta.mshcfg.dot11MeshMaxRetries, DEC, u8);IEEE80211_IF_WFILE(dot11MeshRetryTimeout,		u.sta.mshcfg.dot11MeshRetryTimeout, DEC, u16);IEEE80211_IF_WFILE(dot11MeshConfirmTimeout,		u.sta.mshcfg.dot11MeshConfirmTimeout, DEC, u16);IEEE80211_IF_WFILE(dot11MeshHoldingTimeout,		u.sta.mshcfg.dot11MeshHoldingTimeout, DEC, u16);IEEE80211_IF_WFILE(dot11MeshTTL, u.sta.mshcfg.dot11MeshTTL, DEC, u8);IEEE80211_IF_WFILE(auto_open_plinks, u.sta.mshcfg.auto_open_plinks, DEC, u8);IEEE80211_IF_WFILE(dot11MeshMaxPeerLinks,		u.sta.mshcfg.dot11MeshMaxPeerLinks, DEC, u16);IEEE80211_IF_WFILE(dot11MeshHWMPactivePathTimeout,		u.sta.mshcfg.dot11MeshHWMPactivePathTimeout, DEC, u32);IEEE80211_IF_WFILE(dot11MeshHWMPpreqMinInterval,		u.sta.mshcfg.dot11MeshHWMPpreqMinInterval, DEC, u16);IEEE80211_IF_WFILE(dot11MeshHWMPnetDiameterTraversalTime,		u.sta.mshcfg.dot11MeshHWMPnetDiameterTraversalTime, DEC, u16);IEEE80211_IF_WFILE(dot11MeshHWMPmaxPREQretries,		u.sta.mshcfg.dot11MeshHWMPmaxPREQretries, DEC, u8);IEEE80211_IF_WFILE(path_refresh_time,		u.sta.mshcfg.path_refresh_time, DEC, u32);IEEE80211_IF_WFILE(min_discovery_timeout,		u.sta.mshcfg.min_discovery_timeout, DEC, u16);#endif  #define DEBUGFS_ADD(name, type)\	sdata->debugfs.type.name = debugfs_create_file(#name, 0400,\		sdata->debugfsdir, sdata, &name##_ops); static void add_sta_files(struct ieee80211_sub_if_data *sdata){	DEBUGFS_ADD(channel_use, sta);	DEBUGFS_ADD(drop_unencrypted, sta);	DEBUGFS_ADD(state, sta);	DEBUGFS_ADD(bssid, sta);	DEBUGFS_ADD(prev_bssid, sta);	DEBUGFS_ADD(ssid_len, sta);	DEBUGFS_ADD(aid, sta);	DEBUGFS_ADD(ap_capab, sta);	DEBUGFS_ADD(capab, sta);	DEBUGFS_ADD(extra_ie_len, sta);	DEBUGFS_ADD(auth_tries, sta);	DEBUGFS_ADD(assoc_tries, sta);	DEBUGFS_ADD(auth_algs, sta);	DEBUGFS_ADD(auth_alg, sta);	DEBUGFS_ADD(auth_transaction, sta);	DEBUGFS_ADD(flags, sta);	DEBUGFS_ADD(num_beacons_sta, sta);} static void add_ap_files(struct ieee80211_sub_if_data *sdata){	DEBUGFS_ADD(channel_use, ap);	DEBUGFS_ADD(drop_unencrypted, ap);	DEBUGFS_ADD(num_sta_ps, ap);	DEBUGFS_ADD(dtim_count, ap);	DEBUGFS_ADD(num_beacons, ap);	DEBUGFS_ADD(force_unicast_rateidx, ap);	DEBUGFS_ADD(max_ratectrl_rateidx, ap);	DEBUGFS_ADD(num_buffered_multicast, ap);} static void add_wds_files(struct ieee80211_sub_if_data *sdata){	DEBUGFS_ADD(channel_use, wds);	DEBUGFS_ADD(drop_unencrypted, wds);	DEBUGFS_ADD(peer, wds);} static void add_vlan_files(struct ieee80211_sub_if_data *sdata){	DEBUGFS_ADD(channel_use, vlan);	DEBUGFS_ADD(drop_unencrypted, vlan);} static void add_monitor_files(struct ieee80211_sub_if_data *sdata){} #ifdef CONFIG_MAC80211_MESH#define MESHSTATS_ADD(name)\	sdata->mesh_stats.name = debugfs_create_file(#name, 0400,\		sdata->mesh_stats_dir, sdata, &name##_ops); static void add_mesh_stats(struct ieee80211_sub_if_data *sdata){	sdata->mesh_stats_dir = debugfs_create_dir("mesh_stats",				sdata->debugfsdir);	MESHSTATS_ADD(fwded_frames);	MESHSTATS_ADD(dropped_frames_ttl);	MESHSTATS_ADD(dropped_frames_no_route);	MESHSTATS_ADD(estab_plinks);} #define MESHPARAMS_ADD(name)\	sdata->mesh_config.name = debugfs_create_file(#name, 0600,\		sdata->mesh_config_dir, sdata, &name##_ops); static void add_mesh_config(struct ieee80211_sub_if_data *sdata){	sdata->mesh_config_dir = debugfs_create_dir("mesh_config",				sdata->debugfsdir);	MESHPARAMS_ADD(dot11MeshMaxRetries);	MESHPARAMS_ADD(dot11MeshRetryTimeout);	MESHPARAMS_ADD(dot11MeshConfirmTimeout);	MESHPARAMS_ADD(dot11MeshHoldingTimeout);	MESHPARAMS_ADD(dot11MeshTTL);	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);}#endif static void add_files(struct ieee80211_sub_if_data *sdata){	if (!sdata->debugfsdir)		return; 	switch (sdata->vif.type) {	case IEEE80211_IF_TYPE_MESH_POINT:#ifdef CONFIG_MAC80211_MESH		add_mesh_stats(sdata);		add_mesh_config(sdata);#endif		/* fall through */	case IEEE80211_IF_TYPE_STA:	case IEEE80211_IF_TYPE_IBSS:		add_sta_files(sdata);		break;	case IEEE80211_IF_TYPE_AP:		add_ap_files(sdata);		break;	case IEEE80211_IF_TYPE_WDS:		add_wds_files(sdata);		break;	case IEEE80211_IF_TYPE_MNTR:		add_monitor_files(sdata);		break;	case IEEE80211_IF_TYPE_VLAN:		add_vlan_files(sdata);		break;	default:		break;	}} #define DEBUGFS_DEL(name, type)					\	do {							\		debugfs_remove(sdata->debugfs.type.name);	\		sdata->debugfs.type.name = NULL;		\	} while (0) static void del_sta_files(struct ieee80211_sub_if_data *sdata){	DEBUGFS_DEL(channel_use, sta);	DEBUGFS_DEL(drop_unencrypted, sta);	DEBUGFS_DEL(state, sta);	DEBUGFS_DEL(bssid, sta);	DEBUGFS_DEL(prev_bssid, sta);	DEBUGFS_DEL(ssid_len, sta);	DEBUGFS_DEL(aid, sta);	DEBUGFS_DEL(ap_capab, sta);	DEBUGFS_DEL(capab, sta);	DEBUGFS_DEL(extra_ie_len, sta);	DEBUGFS_DEL(auth_tries, sta);	DEBUGFS_DEL(assoc_tries, sta);	DEBUGFS_DEL(auth_algs, sta);	DEBUGFS_DEL(auth_alg, sta);	DEBUGFS_DEL(auth_transaction, sta);	DEBUGFS_DEL(flags, sta);	DEBUGFS_DEL(num_beacons_sta, sta);} static void del_ap_files(struct ieee80211_sub_if_data *sdata){	DEBUGFS_DEL(channel_use, ap);	DEBUGFS_DEL(drop_unencrypted, ap);	DEBUGFS_DEL(num_sta_ps, ap);	DEBUGFS_DEL(dtim_count, ap);	DEBUGFS_DEL(num_beacons, ap);	DEBUGFS_DEL(force_unicast_rateidx, ap);	DEBUGFS_DEL(max_ratectrl_rateidx, ap);	DEBUGFS_DEL(num_buffered_multicast, ap);} static void del_wds_files(struct ieee80211_sub_if_data *sdata){	DEBUGFS_DEL(channel_use, wds);	DEBUGFS_DEL(drop_unencrypted, wds);	DEBUGFS_DEL(peer, wds);} static void del_vlan_files(struct ieee80211_sub_if_data *sdata){	DEBUGFS_DEL(channel_use, vlan);	DEBUGFS_DEL(drop_unencrypted, vlan);} static void del_monitor_files(struct ieee80211_sub_if_data *sdata){} #ifdef CONFIG_MAC80211_MESH#define MESHSTATS_DEL(name)			\	do {						\		debugfs_remove(sdata->mesh_stats.name);	\		sdata->mesh_stats.name = NULL;		\	} while (0) static void del_mesh_stats(struct ieee80211_sub_if_data *sdata){	MESHSTATS_DEL(fwded_frames);	MESHSTATS_DEL(dropped_frames_ttl);	MESHSTATS_DEL(dropped_frames_no_route);	MESHSTATS_DEL(estab_plinks);	debugfs_remove(sdata->mesh_stats_dir);	sdata->mesh_stats_dir = NULL;} #define MESHPARAMS_DEL(name)			\	do {						\		debugfs_remove(sdata->mesh_config.name);	\		sdata->mesh_config.name = NULL;		\	} while (0) static void del_mesh_config(struct ieee80211_sub_if_data *sdata){	MESHPARAMS_DEL(dot11MeshMaxRetries);	MESHPARAMS_DEL(dot11MeshRetryTimeout);	MESHPARAMS_DEL(dot11MeshConfirmTimeout);	MESHPARAMS_DEL(dot11MeshHoldingTimeout);	MESHPARAMS_DEL(dot11MeshTTL);	MESHPARAMS_DEL(auto_open_plinks);	MESHPARAMS_DEL(dot11MeshMaxPeerLinks);	MESHPARAMS_DEL(dot11MeshHWMPactivePathTimeout);	MESHPARAMS_DEL(dot11MeshHWMPpreqMinInterval);	MESHPARAMS_DEL(dot11MeshHWMPnetDiameterTraversalTime);	MESHPARAMS_DEL(dot11MeshHWMPmaxPREQretries);	MESHPARAMS_DEL(path_refresh_time);	MESHPARAMS_DEL(min_discovery_timeout);	debugfs_remove(sdata->mesh_config_dir);	sdata->mesh_config_dir = NULL;}#endif static void del_files(struct ieee80211_sub_if_data *sdata, int type){	if (!sdata->debugfsdir)		return; 	switch (type) {	case IEEE80211_IF_TYPE_MESH_POINT:#ifdef CONFIG_MAC80211_MESH		del_mesh_stats(sdata);		del_mesh_config(sdata);#endif		/* fall through */	case IEEE80211_IF_TYPE_STA:	case IEEE80211_IF_TYPE_IBSS:		del_sta_files(sdata);		break;	case IEEE80211_IF_TYPE_AP:		del_ap_files(sdata);		break;	case IEEE80211_IF_TYPE_WDS:		del_wds_files(sdata);		break;	case IEEE80211_IF_TYPE_MNTR:		del_monitor_files(sdata);		break;	case IEEE80211_IF_TYPE_VLAN:		del_vlan_files(sdata);		break;	default:		break;	}

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