mirror of https://gitee.com/openkylin/linux.git
426 lines
12 KiB
C
426 lines
12 KiB
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/notifier.h>
|
|
#include <net/mac80211.h>
|
|
#include <net/cfg80211.h>
|
|
#include "ieee80211_i.h"
|
|
#include "ieee80211_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));
|
|
ret = simple_read_from_buffer(userbuf, count, ppos, buf, ret);
|
|
}
|
|
read_unlock(&dev_base_lock);
|
|
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_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)
|
|
|
|
/* common attributes */
|
|
IEEE80211_IF_FILE(channel_use, channel_use, DEC);
|
|
IEEE80211_IF_FILE(drop_unencrypted, drop_unencrypted, DEC);
|
|
IEEE80211_IF_FILE(eapol, eapol, DEC);
|
|
IEEE80211_IF_FILE(ieee8021_x, ieee802_1x, 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);
|
|
|
|
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->flags & IEEE80211_SDATA_USE_PROTECTION ? "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_period, u.ap.dtim_period, DEC);
|
|
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);
|
|
|
|
static ssize_t ieee80211_if_fmt_beacon_head_len(
|
|
const struct ieee80211_sub_if_data *sdata, char *buf, int buflen)
|
|
{
|
|
if (sdata->u.ap.beacon_head)
|
|
return scnprintf(buf, buflen, "%d\n",
|
|
sdata->u.ap.beacon_head_len);
|
|
return scnprintf(buf, buflen, "\n");
|
|
}
|
|
__IEEE80211_IF_FILE(beacon_head_len);
|
|
|
|
static ssize_t ieee80211_if_fmt_beacon_tail_len(
|
|
const struct ieee80211_sub_if_data *sdata, char *buf, int buflen)
|
|
{
|
|
if (sdata->u.ap.beacon_tail)
|
|
return scnprintf(buf, buflen, "%d\n",
|
|
sdata->u.ap.beacon_tail_len);
|
|
return scnprintf(buf, buflen, "\n");
|
|
}
|
|
__IEEE80211_IF_FILE(beacon_tail_len);
|
|
|
|
/* WDS attributes */
|
|
IEEE80211_IF_FILE(peer, u.wds.remote_addr, MAC);
|
|
|
|
#define DEBUGFS_ADD(name, type)\
|
|
sdata->debugfs.type.name = debugfs_create_file(#name, 0444,\
|
|
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(eapol, sta);
|
|
DEBUGFS_ADD(ieee8021_x, 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);
|
|
}
|
|
|
|
static void add_ap_files(struct ieee80211_sub_if_data *sdata)
|
|
{
|
|
DEBUGFS_ADD(channel_use, ap);
|
|
DEBUGFS_ADD(drop_unencrypted, ap);
|
|
DEBUGFS_ADD(eapol, ap);
|
|
DEBUGFS_ADD(ieee8021_x, ap);
|
|
DEBUGFS_ADD(num_sta_ps, ap);
|
|
DEBUGFS_ADD(dtim_period, 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);
|
|
DEBUGFS_ADD(beacon_head_len, ap);
|
|
DEBUGFS_ADD(beacon_tail_len, ap);
|
|
}
|
|
|
|
static void add_wds_files(struct ieee80211_sub_if_data *sdata)
|
|
{
|
|
DEBUGFS_ADD(channel_use, wds);
|
|
DEBUGFS_ADD(drop_unencrypted, wds);
|
|
DEBUGFS_ADD(eapol, wds);
|
|
DEBUGFS_ADD(ieee8021_x, 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);
|
|
DEBUGFS_ADD(eapol, vlan);
|
|
DEBUGFS_ADD(ieee8021_x, vlan);
|
|
}
|
|
|
|
static void add_monitor_files(struct ieee80211_sub_if_data *sdata)
|
|
{
|
|
}
|
|
|
|
static void add_files(struct ieee80211_sub_if_data *sdata)
|
|
{
|
|
if (!sdata->debugfsdir)
|
|
return;
|
|
|
|
switch (sdata->type) {
|
|
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(eapol, sta);
|
|
DEBUGFS_DEL(ieee8021_x, 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);
|
|
}
|
|
|
|
static void del_ap_files(struct ieee80211_sub_if_data *sdata)
|
|
{
|
|
DEBUGFS_DEL(channel_use, ap);
|
|
DEBUGFS_DEL(drop_unencrypted, ap);
|
|
DEBUGFS_DEL(eapol, ap);
|
|
DEBUGFS_DEL(ieee8021_x, ap);
|
|
DEBUGFS_DEL(num_sta_ps, ap);
|
|
DEBUGFS_DEL(dtim_period, 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);
|
|
DEBUGFS_DEL(beacon_head_len, ap);
|
|
DEBUGFS_DEL(beacon_tail_len, ap);
|
|
}
|
|
|
|
static void del_wds_files(struct ieee80211_sub_if_data *sdata)
|
|
{
|
|
DEBUGFS_DEL(channel_use, wds);
|
|
DEBUGFS_DEL(drop_unencrypted, wds);
|
|
DEBUGFS_DEL(eapol, wds);
|
|
DEBUGFS_DEL(ieee8021_x, 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);
|
|
DEBUGFS_DEL(eapol, vlan);
|
|
DEBUGFS_DEL(ieee8021_x, vlan);
|
|
}
|
|
|
|
static void del_monitor_files(struct ieee80211_sub_if_data *sdata)
|
|
{
|
|
}
|
|
|
|
static void del_files(struct ieee80211_sub_if_data *sdata, int type)
|
|
{
|
|
if (!sdata->debugfsdir)
|
|
return;
|
|
|
|
switch (type) {
|
|
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;
|
|
}
|
|
}
|
|
|
|
static int notif_registered;
|
|
|
|
void ieee80211_debugfs_add_netdev(struct ieee80211_sub_if_data *sdata)
|
|
{
|
|
char buf[10+IFNAMSIZ];
|
|
|
|
if (!notif_registered)
|
|
return;
|
|
|
|
sprintf(buf, "netdev:%s", sdata->dev->name);
|
|
sdata->debugfsdir = debugfs_create_dir(buf,
|
|
sdata->local->hw.wiphy->debugfsdir);
|
|
}
|
|
|
|
void ieee80211_debugfs_remove_netdev(struct ieee80211_sub_if_data *sdata)
|
|
{
|
|
del_files(sdata, sdata->type);
|
|
debugfs_remove(sdata->debugfsdir);
|
|
sdata->debugfsdir = NULL;
|
|
}
|
|
|
|
void ieee80211_debugfs_change_if_type(struct ieee80211_sub_if_data *sdata,
|
|
int oldtype)
|
|
{
|
|
del_files(sdata, oldtype);
|
|
add_files(sdata);
|
|
}
|
|
|
|
static int netdev_notify(struct notifier_block * nb,
|
|
unsigned long state,
|
|
void *ndev)
|
|
{
|
|
struct net_device *dev = ndev;
|
|
struct dentry *dir;
|
|
struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
|
|
char buf[10+IFNAMSIZ];
|
|
|
|
if (state != NETDEV_CHANGENAME)
|
|
return 0;
|
|
|
|
if (!dev->ieee80211_ptr || !dev->ieee80211_ptr->wiphy)
|
|
return 0;
|
|
|
|
if (dev->ieee80211_ptr->wiphy->privid != mac80211_wiphy_privid)
|
|
return 0;
|
|
|
|
sprintf(buf, "netdev:%s", dev->name);
|
|
dir = sdata->debugfsdir;
|
|
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);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static struct notifier_block mac80211_debugfs_netdev_notifier = {
|
|
.notifier_call = netdev_notify,
|
|
};
|
|
|
|
void ieee80211_debugfs_netdev_init(void)
|
|
{
|
|
int err;
|
|
|
|
err = register_netdevice_notifier(&mac80211_debugfs_netdev_notifier);
|
|
if (err) {
|
|
printk(KERN_ERR
|
|
"mac80211: failed to install netdev notifier,"
|
|
" disabling per-netdev debugfs!\n");
|
|
} else
|
|
notif_registered = 1;
|
|
}
|
|
|
|
void ieee80211_debugfs_netdev_exit(void)
|
|
{
|
|
unregister_netdevice_notifier(&mac80211_debugfs_netdev_notifier);
|
|
notif_registered = 0;
|
|
}
|