linux/net/mac80211/debugfs_netdev.c
Johannes Berg 8d61ffa5e0 cfg80211/mac80211: use cfg80211 wdev mutex in mac80211
Using separate locks in cfg80211 and mac80211 has always
caused issues, for example having to unlock in places in
mac80211 to call cfg80211, which even needed a framework
to make cfg80211 calls after some functions returned etc.

Additionally, I suspect some issues people have reported
with the cfg80211 state getting confused could be due to
such issues, when cfg80211 is asking mac80211 to change
state but mac80211 is in the process of telling cfg80211
that the state changed (in another way.)

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2013-05-25 00:02:16 +02:00

721 lines
20 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/if_ether.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))
{
char buf[64];
ssize_t ret;
if (count >= sizeof(buf))
return -E2BIG;
if (copy_from_user(buf, userbuf, count))
return -EFAULT;
buf[count] = '\0';
ret = -ENODEV;
rtnl_lock();
if (sdata->dev->reg_state == NETREG_REGISTERED)
ret = (*write)(sdata, buf, count);
rtnl_unlock();
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_HEXARRAY(name, field) \
static ssize_t ieee80211_if_fmt_##name( \
const struct ieee80211_sub_if_data *sdata, \
char *buf, int buflen) \
{ \
char *p = buf; \
int i; \
for (i = 0; i < sizeof(sdata->field); i++) { \
p += scnprintf(p, buflen + buf - p, "%.2x ", \
sdata->field[i]); \
} \
p += scnprintf(p, buflen + buf - p, "\n"); \
return p - buf; \
}
#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_FMT_JIFFIES_TO_MS(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", \
jiffies_to_msecs(sdata->field)); \
}
#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 = simple_open, \
.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(rc_rateidx_mcs_mask_2ghz,
rc_rateidx_mcs_mask[IEEE80211_BAND_2GHZ], HEXARRAY);
IEEE80211_IF_FILE(rc_rateidx_mcs_mask_5ghz,
rc_rateidx_mcs_mask[IEEE80211_BAND_5GHZ], HEXARRAY);
IEEE80211_IF_FILE(flags, flags, HEX);
IEEE80211_IF_FILE(state, state, LHEX);
IEEE80211_IF_FILE(txpower, vif.bss_conf.txpower, DEC);
IEEE80211_IF_FILE(ap_power_level, ap_power_level, DEC);
IEEE80211_IF_FILE(user_power_level, user_power_level, DEC);
static ssize_t
ieee80211_if_fmt_hw_queues(const struct ieee80211_sub_if_data *sdata,
char *buf, int buflen)
{
int len;
len = scnprintf(buf, buflen, "AC queues: VO:%d VI:%d BE:%d BK:%d\n",
sdata->vif.hw_queue[IEEE80211_AC_VO],
sdata->vif.hw_queue[IEEE80211_AC_VI],
sdata->vif.hw_queue[IEEE80211_AC_BE],
sdata->vif.hw_queue[IEEE80211_AC_BK]);
if (sdata->vif.type == NL80211_IFTYPE_AP)
len += scnprintf(buf + len, buflen - len, "cab queue: %d\n",
sdata->vif.cab_queue);
return len;
}
__IEEE80211_IF_FILE(hw_queues, NULL);
/* 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);
IEEE80211_IF_FILE(beacon_timeout, u.mgd.beacon_timeout, JIFFIES_TO_MS);
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;
sdata_lock(sdata);
err = __ieee80211_request_smps(sdata, smps_mode);
sdata_unlock(sdata);
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->smps_mode]);
}
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 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;
if (!mac_pton(buf, addr))
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 */
sdata_lock(sdata);
if (!sdata->u.mgd.associated) {
sdata_unlock(sdata);
dev_kfree_skb(skb);
return -ENOTCONN;
}
memcpy(hdr->addr1, sdata->u.mgd.associated->bssid, ETH_ALEN);
memcpy(hdr->addr2, sdata->vif.addr, ETH_ALEN);
memcpy(hdr->addr3, addr, ETH_ALEN);
sdata_unlock(sdata);
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);
static ssize_t ieee80211_if_fmt_uapsd_queues(
const struct ieee80211_sub_if_data *sdata, char *buf, int buflen)
{
const struct ieee80211_if_managed *ifmgd = &sdata->u.mgd;
return snprintf(buf, buflen, "0x%x\n", ifmgd->uapsd_queues);
}
static ssize_t ieee80211_if_parse_uapsd_queues(
struct ieee80211_sub_if_data *sdata, const char *buf, int buflen)
{
struct ieee80211_if_managed *ifmgd = &sdata->u.mgd;
u8 val;
int ret;
ret = kstrtou8(buf, 0, &val);
if (ret)
return ret;
if (val & ~IEEE80211_WMM_IE_STA_QOSINFO_AC_MASK)
return -ERANGE;
ifmgd->uapsd_queues = val;
return buflen;
}
__IEEE80211_IF_FILE_W(uapsd_queues);
static ssize_t ieee80211_if_fmt_uapsd_max_sp_len(
const struct ieee80211_sub_if_data *sdata, char *buf, int buflen)
{
const struct ieee80211_if_managed *ifmgd = &sdata->u.mgd;
return snprintf(buf, buflen, "0x%x\n", ifmgd->uapsd_max_sp_len);
}
static ssize_t ieee80211_if_parse_uapsd_max_sp_len(
struct ieee80211_sub_if_data *sdata, const char *buf, int buflen)
{
struct ieee80211_if_managed *ifmgd = &sdata->u.mgd;
unsigned long val;
int ret;
ret = kstrtoul(buf, 0, &val);
if (ret)
return -EINVAL;
if (val & ~IEEE80211_WMM_IE_STA_QOSINFO_SP_MASK)
return -ERANGE;
ifmgd->uapsd_max_sp_len = val;
return buflen;
}
__IEEE80211_IF_FILE_W(uapsd_max_sp_len);
/* AP attributes */
IEEE80211_IF_FILE(num_mcast_sta, u.ap.num_mcast_sta, ATOMIC);
IEEE80211_IF_FILE(num_sta_ps, u.ap.ps.num_sta_ps, ATOMIC);
IEEE80211_IF_FILE(dtim_count, u.ap.ps.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;
int tsf_is_delta = 0;
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 {
if (buflen > 10 && buf[1] == '=') {
if (buf[0] == '+')
tsf_is_delta = 1;
else if (buf[0] == '-')
tsf_is_delta = -1;
else
return -EINVAL;
buf += 2;
}
ret = kstrtoull(buf, 10, &tsf);
if (ret < 0)
return ret;
if (tsf_is_delta)
tsf = drv_get_tsf(local, sdata) + tsf_is_delta * tsf;
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
IEEE80211_IF_FILE(estab_plinks, u.mesh.estab_plinks, ATOMIC);
/* 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);
/* 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(dot11MeshHWMPperrMinInterval,
u.mesh.mshcfg.dot11MeshHWMPperrMinInterval, 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);
IEEE80211_IF_FILE(dot11MeshForwarding, u.mesh.mshcfg.dot11MeshForwarding, DEC);
IEEE80211_IF_FILE(rssi_threshold, u.mesh.mshcfg.rssi_threshold, DEC);
IEEE80211_IF_FILE(ht_opmode, u.mesh.mshcfg.ht_opmode, DEC);
IEEE80211_IF_FILE(dot11MeshHWMPactivePathToRootTimeout,
u.mesh.mshcfg.dot11MeshHWMPactivePathToRootTimeout, DEC);
IEEE80211_IF_FILE(dot11MeshHWMProotInterval,
u.mesh.mshcfg.dot11MeshHWMProotInterval, DEC);
IEEE80211_IF_FILE(dot11MeshHWMPconfirmationInterval,
u.mesh.mshcfg.dot11MeshHWMPconfirmationInterval, DEC);
IEEE80211_IF_FILE(power_mode, u.mesh.mshcfg.power_mode, DEC);
IEEE80211_IF_FILE(dot11MeshAwakeWindowDuration,
u.mesh.mshcfg.dot11MeshAwakeWindowDuration, DEC);
#endif
#define DEBUGFS_ADD_MODE(name, mode) \
debugfs_create_file(#name, mode, sdata->vif.debugfs_dir, \
sdata, &name##_ops);
#define DEBUGFS_ADD(name) DEBUGFS_ADD_MODE(name, 0400)
static void add_common_files(struct ieee80211_sub_if_data *sdata)
{
DEBUGFS_ADD(drop_unencrypted);
DEBUGFS_ADD(rc_rateidx_mask_2ghz);
DEBUGFS_ADD(rc_rateidx_mask_5ghz);
DEBUGFS_ADD(rc_rateidx_mcs_mask_2ghz);
DEBUGFS_ADD(rc_rateidx_mcs_mask_5ghz);
DEBUGFS_ADD(hw_queues);
}
static void add_sta_files(struct ieee80211_sub_if_data *sdata)
{
DEBUGFS_ADD(bssid);
DEBUGFS_ADD(aid);
DEBUGFS_ADD(last_beacon);
DEBUGFS_ADD(ave_beacon);
DEBUGFS_ADD(beacon_timeout);
DEBUGFS_ADD_MODE(smps, 0600);
DEBUGFS_ADD_MODE(tkip_mic_test, 0200);
DEBUGFS_ADD_MODE(uapsd_queues, 0600);
DEBUGFS_ADD_MODE(uapsd_max_sp_len, 0600);
}
static void add_ap_files(struct ieee80211_sub_if_data *sdata)
{
DEBUGFS_ADD(num_mcast_sta);
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(peer);
}
#ifdef CONFIG_MAC80211_MESH
static void add_mesh_files(struct ieee80211_sub_if_data *sdata)
{
DEBUGFS_ADD_MODE(tsf, 0600);
DEBUGFS_ADD_MODE(estab_plinks, 0400);
}
static void add_mesh_stats(struct ieee80211_sub_if_data *sdata)
{
struct dentry *dir = debugfs_create_dir("mesh_stats",
sdata->vif.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);
#undef MESHSTATS_ADD
}
static void add_mesh_config(struct ieee80211_sub_if_data *sdata)
{
struct dentry *dir = debugfs_create_dir("mesh_config",
sdata->vif.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(dot11MeshHWMPperrMinInterval);
MESHPARAMS_ADD(dot11MeshHWMPnetDiameterTraversalTime);
MESHPARAMS_ADD(dot11MeshHWMPmaxPREQretries);
MESHPARAMS_ADD(path_refresh_time);
MESHPARAMS_ADD(min_discovery_timeout);
MESHPARAMS_ADD(dot11MeshHWMPRootMode);
MESHPARAMS_ADD(dot11MeshHWMPRannInterval);
MESHPARAMS_ADD(dot11MeshForwarding);
MESHPARAMS_ADD(dot11MeshGateAnnouncementProtocol);
MESHPARAMS_ADD(rssi_threshold);
MESHPARAMS_ADD(ht_opmode);
MESHPARAMS_ADD(dot11MeshHWMPactivePathToRootTimeout);
MESHPARAMS_ADD(dot11MeshHWMProotInterval);
MESHPARAMS_ADD(dot11MeshHWMPconfirmationInterval);
MESHPARAMS_ADD(power_mode);
MESHPARAMS_ADD(dot11MeshAwakeWindowDuration);
#undef MESHPARAMS_ADD
}
#endif
static void add_files(struct ieee80211_sub_if_data *sdata)
{
if (!sdata->vif.debugfs_dir)
return;
DEBUGFS_ADD(flags);
DEBUGFS_ADD(state);
DEBUGFS_ADD(txpower);
DEBUGFS_ADD(user_power_level);
DEBUGFS_ADD(ap_power_level);
if (sdata->vif.type != NL80211_IFTYPE_MONITOR)
add_common_files(sdata);
switch (sdata->vif.type) {
case NL80211_IFTYPE_MESH_POINT:
#ifdef CONFIG_MAC80211_MESH
add_mesh_files(sdata);
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;
default:
break;
}
}
void ieee80211_debugfs_add_netdev(struct ieee80211_sub_if_data *sdata)
{
char buf[10+IFNAMSIZ];
sprintf(buf, "netdev:%s", sdata->name);
sdata->vif.debugfs_dir = debugfs_create_dir(buf,
sdata->local->hw.wiphy->debugfsdir);
if (sdata->vif.debugfs_dir)
sdata->debugfs.subdir_stations = debugfs_create_dir("stations",
sdata->vif.debugfs_dir);
add_files(sdata);
}
void ieee80211_debugfs_remove_netdev(struct ieee80211_sub_if_data *sdata)
{
if (!sdata->vif.debugfs_dir)
return;
debugfs_remove_recursive(sdata->vif.debugfs_dir);
sdata->vif.debugfs_dir = NULL;
}
void ieee80211_debugfs_rename_netdev(struct ieee80211_sub_if_data *sdata)
{
struct dentry *dir;
char buf[10 + IFNAMSIZ];
dir = sdata->vif.debugfs_dir;
if (!dir)
return;
sprintf(buf, "netdev:%s", sdata->name);
if (!debugfs_rename(dir->d_parent, dir, dir->d_parent, buf))
sdata_err(sdata,
"debugfs: failed to rename debugfs dir to %s\n",
buf);
}