+++ /dev/null
-/*
- * 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);
-
-/* 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->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);
-
-#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(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(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)
-{
-}
-
-static void add_files(struct ieee80211_sub_if_data *sdata)
-{
- if (!sdata->debugfsdir)
- return;
-
- switch (sdata->vif.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(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(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)
-{
-}
-
-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->vif.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;
-}
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