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mirror_ubuntu-kernels/net/mac80211/debugfs_netdev.c

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// SPDX-License-Identifier: GPL-2.0-only
/*
* Copyright (c) 2006 Jiri Benc <jbenc@suse.cz>
* Copyright 2007 Johannes Berg <johannes@sipsolutions.net>
* Copyright (C) 2020-2023 Intel Corporation
*/
#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"
struct ieee80211_if_read_sdata_data {
ssize_t (*format)(const struct ieee80211_sub_if_data *, char *, int);
struct ieee80211_sub_if_data *sdata;
};
static ssize_t ieee80211_if_read_sdata_handler(struct wiphy *wiphy,
struct file *file,
char *buf,
size_t bufsize,
void *data)
{
struct ieee80211_if_read_sdata_data *d = data;
return d->format(d->sdata, buf, bufsize);
}
static ssize_t ieee80211_if_read_sdata(
struct file *file,
char __user *userbuf,
size_t count, loff_t *ppos,
ssize_t (*format)(const struct ieee80211_sub_if_data *sdata, char *, int))
{
struct ieee80211_sub_if_data *sdata = file->private_data;
struct ieee80211_if_read_sdata_data data = {
.format = format,
.sdata = sdata,
};
char buf[200];
return wiphy_locked_debugfs_read(sdata->local->hw.wiphy,
file, buf, sizeof(buf),
userbuf, count, ppos,
ieee80211_if_read_sdata_handler,
&data);
}
struct ieee80211_if_write_sdata_data {
ssize_t (*write)(struct ieee80211_sub_if_data *, const char *, int);
struct ieee80211_sub_if_data *sdata;
};
static ssize_t ieee80211_if_write_sdata_handler(struct wiphy *wiphy,
struct file *file,
char *buf,
size_t count,
void *data)
{
struct ieee80211_if_write_sdata_data *d = data;
return d->write(d->sdata, buf, count);
}
static ssize_t ieee80211_if_write_sdata(
struct file *file,
const char __user *userbuf,
size_t count, loff_t *ppos,
ssize_t (*write)(struct ieee80211_sub_if_data *sdata, const char *, int))
{
struct ieee80211_sub_if_data *sdata = file->private_data;
struct ieee80211_if_write_sdata_data data = {
.write = write,
.sdata = sdata,
};
char buf[64];
return wiphy_locked_debugfs_write(sdata->local->hw.wiphy,
file, buf, sizeof(buf),
userbuf, count,
ieee80211_if_write_sdata_handler,
&data);
}
struct ieee80211_if_read_link_data {
ssize_t (*format)(const struct ieee80211_link_data *, char *, int);
struct ieee80211_link_data *link;
};
static ssize_t ieee80211_if_read_link_handler(struct wiphy *wiphy,
struct file *file,
char *buf,
size_t bufsize,
void *data)
{
struct ieee80211_if_read_link_data *d = data;
return d->format(d->link, buf, bufsize);
}
static ssize_t ieee80211_if_read_link(
struct file *file,
char __user *userbuf,
size_t count, loff_t *ppos,
ssize_t (*format)(const struct ieee80211_link_data *link, char *, int))
{
struct ieee80211_link_data *link = file->private_data;
struct ieee80211_if_read_link_data data = {
.format = format,
.link = link,
};
char buf[200];
return wiphy_locked_debugfs_read(link->sdata->local->hw.wiphy,
file, buf, sizeof(buf),
userbuf, count, ppos,
ieee80211_if_read_link_handler,
&data);
}
struct ieee80211_if_write_link_data {
ssize_t (*write)(struct ieee80211_link_data *, const char *, int);
struct ieee80211_link_data *link;
};
static ssize_t ieee80211_if_write_link_handler(struct wiphy *wiphy,
struct file *file,
char *buf,
size_t count,
void *data)
{
struct ieee80211_if_write_sdata_data *d = data;
return d->write(d->sdata, buf, count);
}
static ssize_t ieee80211_if_write_link(
struct file *file,
const char __user *userbuf,
size_t count, loff_t *ppos,
ssize_t (*write)(struct ieee80211_link_data *link, const char *, int))
{
struct ieee80211_link_data *link = file->private_data;
struct ieee80211_if_write_link_data data = {
.write = write,
.link = link,
};
char buf[64];
return wiphy_locked_debugfs_write(link->sdata->local->hw.wiphy,
file, buf, sizeof(buf),
userbuf, count,
ieee80211_if_write_link_handler,
&data);
}
#define IEEE80211_IF_FMT(name, type, field, format_string) \
static ssize_t ieee80211_if_fmt_##name( \
const type *data, char *buf, \
int buflen) \
{ \
return scnprintf(buf, buflen, format_string, data->field); \
}
#define IEEE80211_IF_FMT_DEC(name, type, field) \
IEEE80211_IF_FMT(name, type, field, "%d\n")
#define IEEE80211_IF_FMT_HEX(name, type, field) \
IEEE80211_IF_FMT(name, type, field, "%#x\n")
#define IEEE80211_IF_FMT_LHEX(name, type, field) \
IEEE80211_IF_FMT(name, type, field, "%#lx\n")
#define IEEE80211_IF_FMT_HEXARRAY(name, type, field) \
static ssize_t ieee80211_if_fmt_##name( \
const type *data, \
char *buf, int buflen) \
{ \
char *p = buf; \
int i; \
for (i = 0; i < sizeof(data->field); i++) { \
p += scnprintf(p, buflen + buf - p, "%.2x ", \
data->field[i]); \
} \
p += scnprintf(p, buflen + buf - p, "\n"); \
return p - buf; \
}
#define IEEE80211_IF_FMT_ATOMIC(name, type, field) \
static ssize_t ieee80211_if_fmt_##name( \
const type *data, \
char *buf, int buflen) \
{ \
return scnprintf(buf, buflen, "%d\n", atomic_read(&data->field));\
}
#define IEEE80211_IF_FMT_MAC(name, type, field) \
static ssize_t ieee80211_if_fmt_##name( \
const type *data, char *buf, \
int buflen) \
{ \
return scnprintf(buf, buflen, "%pM\n", data->field); \
}
#define IEEE80211_IF_FMT_JIFFIES_TO_MS(name, type, field) \
static ssize_t ieee80211_if_fmt_##name( \
const type *data, \
char *buf, int buflen) \
{ \
return scnprintf(buf, buflen, "%d\n", \
jiffies_to_msecs(data->field)); \
}
#define _IEEE80211_IF_FILE_OPS(name, _read, _write) \
static const struct file_operations name##_ops = { \
.read = (_read), \
.write = (_write), \
.open = simple_open, \
.llseek = generic_file_llseek, \
}
#define _IEEE80211_IF_FILE_R_FN(name) \
static ssize_t ieee80211_if_read_##name(struct file *file, \
char __user *userbuf, \
size_t count, loff_t *ppos) \
{ \
return ieee80211_if_read_sdata(file, \
userbuf, count, ppos, \
ieee80211_if_fmt_##name); \
}
#define _IEEE80211_IF_FILE_W_FN(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_sdata(file, userbuf, \
count, ppos, \
ieee80211_if_parse_##name); \
}
#define IEEE80211_IF_FILE_R(name) \
_IEEE80211_IF_FILE_R_FN(name) \
_IEEE80211_IF_FILE_OPS(name, ieee80211_if_read_##name, NULL)
#define IEEE80211_IF_FILE_W(name) \
_IEEE80211_IF_FILE_W_FN(name) \
_IEEE80211_IF_FILE_OPS(name, NULL, ieee80211_if_write_##name)
#define IEEE80211_IF_FILE_RW(name) \
_IEEE80211_IF_FILE_R_FN(name) \
_IEEE80211_IF_FILE_W_FN(name) \
_IEEE80211_IF_FILE_OPS(name, ieee80211_if_read_##name, \
ieee80211_if_write_##name)
#define IEEE80211_IF_FILE(name, field, format) \
IEEE80211_IF_FMT_##format(name, struct ieee80211_sub_if_data, field) \
IEEE80211_IF_FILE_R(name)
#define _IEEE80211_IF_LINK_R_FN(name) \
static ssize_t ieee80211_if_read_##name(struct file *file, \
char __user *userbuf, \
size_t count, loff_t *ppos) \
{ \
return ieee80211_if_read_link(file, \
userbuf, count, ppos, \
ieee80211_if_fmt_##name); \
}
#define _IEEE80211_IF_LINK_W_FN(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_link(file, userbuf, \
count, ppos, \
ieee80211_if_parse_##name); \
}
#define IEEE80211_IF_LINK_FILE_R(name) \
_IEEE80211_IF_LINK_R_FN(name) \
_IEEE80211_IF_FILE_OPS(link_##name, ieee80211_if_read_##name, NULL)
#define IEEE80211_IF_LINK_FILE_W(name) \
_IEEE80211_IF_LINK_W_FN(name) \
_IEEE80211_IF_FILE_OPS(link_##name, NULL, ieee80211_if_write_##name)
#define IEEE80211_IF_LINK_FILE_RW(name) \
_IEEE80211_IF_LINK_R_FN(name) \
_IEEE80211_IF_LINK_W_FN(name) \
_IEEE80211_IF_FILE_OPS(link_##name, ieee80211_if_read_##name, \
ieee80211_if_write_##name)
#define IEEE80211_IF_LINK_FILE(name, field, format) \
IEEE80211_IF_FMT_##format(name, struct ieee80211_link_data, field) \
IEEE80211_IF_LINK_FILE_R(name)
/* common attributes */
IEEE80211_IF_FILE(rc_rateidx_mask_2ghz, rc_rateidx_mask[NL80211_BAND_2GHZ],
HEX);
IEEE80211_IF_FILE(rc_rateidx_mask_5ghz, rc_rateidx_mask[NL80211_BAND_5GHZ],
HEX);
IEEE80211_IF_FILE(rc_rateidx_mcs_mask_2ghz,
rc_rateidx_mcs_mask[NL80211_BAND_2GHZ], HEXARRAY);
IEEE80211_IF_FILE(rc_rateidx_mcs_mask_5ghz,
rc_rateidx_mcs_mask[NL80211_BAND_5GHZ], HEXARRAY);
static ssize_t ieee80211_if_fmt_rc_rateidx_vht_mcs_mask_2ghz(
const struct ieee80211_sub_if_data *sdata,
char *buf, int buflen)
{
int i, len = 0;
const u16 *mask = sdata->rc_rateidx_vht_mcs_mask[NL80211_BAND_2GHZ];
for (i = 0; i < NL80211_VHT_NSS_MAX; i++)
len += scnprintf(buf + len, buflen - len, "%04x ", mask[i]);
len += scnprintf(buf + len, buflen - len, "\n");
return len;
}
IEEE80211_IF_FILE_R(rc_rateidx_vht_mcs_mask_2ghz);
static ssize_t ieee80211_if_fmt_rc_rateidx_vht_mcs_mask_5ghz(
const struct ieee80211_sub_if_data *sdata,
char *buf, int buflen)
{
int i, len = 0;
const u16 *mask = sdata->rc_rateidx_vht_mcs_mask[NL80211_BAND_5GHZ];
for (i = 0; i < NL80211_VHT_NSS_MAX; i++)
len += scnprintf(buf + len, buflen - len, "%04x ", mask[i]);
len += scnprintf(buf + len, buflen - len, "\n");
return len;
}
IEEE80211_IF_FILE_R(rc_rateidx_vht_mcs_mask_5ghz);
IEEE80211_IF_FILE(flags, flags, HEX);
IEEE80211_IF_FILE(state, state, LHEX);
IEEE80211_IF_LINK_FILE(txpower, conf->txpower, DEC);
IEEE80211_IF_LINK_FILE(ap_power_level, ap_power_level, DEC);
IEEE80211_IF_LINK_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_R(hw_queues);
/* STA attributes */
IEEE80211_IF_FILE(bssid, deflink.u.mgd.bssid, MAC);
IEEE80211_IF_FILE(aid, vif.cfg.aid, DEC);
IEEE80211_IF_FILE(beacon_timeout, u.mgd.beacon_timeout, JIFFIES_TO_MS);
static int ieee80211_set_smps(struct ieee80211_link_data *link,
enum ieee80211_smps_mode smps_mode)
{
struct ieee80211_sub_if_data *sdata = link->sdata;
struct ieee80211_local *local = sdata->local;
/* The driver indicated that EML is enabled for the interface, thus do
* not allow to override the SMPS state.
*/
if (sdata->vif.driver_flags & IEEE80211_VIF_EML_ACTIVE)
return -EOPNOTSUPP;
if (!(local->hw.wiphy->features & NL80211_FEATURE_STATIC_SMPS) &&
smps_mode == IEEE80211_SMPS_STATIC)
return -EINVAL;
/* auto should be dynamic if in PS mode */
if (!(local->hw.wiphy->features & NL80211_FEATURE_DYNAMIC_SMPS) &&
(smps_mode == IEEE80211_SMPS_DYNAMIC ||
smps_mode == IEEE80211_SMPS_AUTOMATIC))
return -EINVAL;
if (sdata->vif.type != NL80211_IFTYPE_STATION)
return -EOPNOTSUPP;
return __ieee80211_request_smps_mgd(link->sdata, link, smps_mode);
}
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_link_data *link,
char *buf, int buflen)
{
if (link->sdata->vif.type == NL80211_IFTYPE_STATION)
return snprintf(buf, buflen, "request: %s\nused: %s\n",
smps_modes[link->u.mgd.req_smps],
smps_modes[link->smps_mode]);
return -EINVAL;
}
static ssize_t ieee80211_if_parse_smps(struct ieee80211_link_data *link,
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(link, mode);
if (!err)
return buflen;
return err;
}
}
return -EINVAL;
}
IEEE80211_IF_LINK_FILE_RW(smps);
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 = skb_put_zero(skb, 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->u.mgd.associated) {
dev_kfree_skb(skb);
return -ENOTCONN;
}
memcpy(hdr->addr1, sdata->deflink.u.mgd.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.
*/
skb_put_zero(skb, 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_parse_beacon_loss(
struct ieee80211_sub_if_data *sdata, const char *buf, int buflen)
{
if (!ieee80211_sdata_running(sdata) || !sdata->vif.cfg.assoc)
return -ENOTCONN;
ieee80211_beacon_loss(&sdata->vif);
return buflen;
}
IEEE80211_IF_FILE_W(beacon_loss);
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_RW(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_RW(uapsd_max_sp_len);
static ssize_t ieee80211_if_fmt_tdls_wider_bw(
const struct ieee80211_sub_if_data *sdata, char *buf, int buflen)
{
const struct ieee80211_if_managed *ifmgd = &sdata->u.mgd;
bool tdls_wider_bw;
tdls_wider_bw = ieee80211_hw_check(&sdata->local->hw, TDLS_WIDER_BW) &&
!ifmgd->tdls_wider_bw_prohibited;
return snprintf(buf, buflen, "%d\n", tdls_wider_bw);
}
static ssize_t ieee80211_if_parse_tdls_wider_bw(
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;
ifmgd->tdls_wider_bw_prohibited = !val;
return buflen;
}
IEEE80211_IF_FILE_RW(tdls_wider_bw);
/* 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);
IEEE80211_IF_FILE(num_mcast_sta_vlan, u.vlan.num_mcast_sta, ATOMIC);
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_R(num_buffered_multicast);
static ssize_t ieee80211_if_fmt_aqm(
const struct ieee80211_sub_if_data *sdata, char *buf, int buflen)
{
struct ieee80211_local *local = sdata->local;
struct txq_info *txqi;
int len;
if (!sdata->vif.txq)
return 0;
txqi = to_txq_info(sdata->vif.txq);
spin_lock_bh(&local->fq.lock);
rcu_read_lock();
len = scnprintf(buf,
buflen,
"ac backlog-bytes backlog-packets new-flows drops marks overlimit collisions tx-bytes tx-packets\n"
"%u %u %u %u %u %u %u %u %u %u\n",
txqi->txq.ac,
txqi->tin.backlog_bytes,
txqi->tin.backlog_packets,
txqi->tin.flows,
txqi->cstats.drop_count,
txqi->cstats.ecn_mark,
txqi->tin.overlimit,
txqi->tin.collisions,
txqi->tin.tx_bytes,
txqi->tin.tx_packets);
rcu_read_unlock();
spin_unlock_bh(&local->fq.lock);
return len;
}
IEEE80211_IF_FILE_R(aqm);
IEEE80211_IF_FILE(multicast_to_unicast, u.ap.multicast_to_unicast, HEX);
/* 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 && local->ops->offset_tsf) {
drv_offset_tsf(local, sdata, tsf_is_delta * tsf);
wiphy_info(local->hw.wiphy,
"debugfs offset TSF by %018lld\n",
tsf_is_delta * tsf);
} else if (local->ops->set_tsf) {
if (tsf_is_delta)
tsf = drv_get_tsf(local, sdata) +
tsf_is_delta * tsf;
drv_set_tsf(local, sdata, tsf);
wiphy_info(local->hw.wiphy,
"debugfs set TSF to %#018llx\n", tsf);
}
}
ieee80211_recalc_dtim(local, sdata);
return buflen;
}
IEEE80211_IF_FILE_RW(tsf);
static ssize_t ieee80211_if_fmt_valid_links(const struct ieee80211_sub_if_data *sdata,
char *buf, int buflen)
{
return snprintf(buf, buflen, "0x%x\n", sdata->vif.valid_links);
}
IEEE80211_IF_FILE_R(valid_links);
static ssize_t ieee80211_if_fmt_active_links(const struct ieee80211_sub_if_data *sdata,
char *buf, int buflen)
{
return snprintf(buf, buflen, "0x%x\n", sdata->vif.active_links);
}
static ssize_t ieee80211_if_parse_active_links(struct ieee80211_sub_if_data *sdata,
const char *buf, int buflen)
{
u16 active_links;
if (kstrtou16(buf, 0, &active_links))
return -EINVAL;
return ieee80211_set_active_links(&sdata->vif, active_links) ?: buflen;
}
IEEE80211_IF_FILE_RW(active_links);
IEEE80211_IF_LINK_FILE(addr, conf->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_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);
IEEE80211_IF_FILE(dot11MeshConnectedToMeshGate,
u.mesh.mshcfg.dot11MeshConnectedToMeshGate, DEC);
IEEE80211_IF_FILE(dot11MeshNolearn, u.mesh.mshcfg.dot11MeshNolearn, DEC);
IEEE80211_IF_FILE(dot11MeshConnectedToAuthServer,
u.mesh.mshcfg.dot11MeshConnectedToAuthServer, DEC);
#endif
#define DEBUGFS_ADD_MODE(name, mode) \
debugfs_create_file(#name, mode, sdata->vif.debugfs_dir, \
sdata, &name##_ops)
#define DEBUGFS_ADD_X(_bits, _name, _mode) \
debugfs_create_x##_bits(#_name, _mode, sdata->vif.debugfs_dir, \
&sdata->vif._name)
#define DEBUGFS_ADD_X8(_name, _mode) \
DEBUGFS_ADD_X(8, _name, _mode)
#define DEBUGFS_ADD_X16(_name, _mode) \
DEBUGFS_ADD_X(16, _name, _mode)
#define DEBUGFS_ADD_X32(_name, _mode) \
DEBUGFS_ADD_X(32, _name, _mode)
#define DEBUGFS_ADD(name) DEBUGFS_ADD_MODE(name, 0400)
static void add_common_files(struct ieee80211_sub_if_data *sdata)
{
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(rc_rateidx_vht_mcs_mask_2ghz);
DEBUGFS_ADD(rc_rateidx_vht_mcs_mask_5ghz);
DEBUGFS_ADD(hw_queues);
if (sdata->vif.type != NL80211_IFTYPE_P2P_DEVICE &&
sdata->vif.type != NL80211_IFTYPE_NAN)
DEBUGFS_ADD(aqm);
}
static void add_sta_files(struct ieee80211_sub_if_data *sdata)
{
DEBUGFS_ADD(bssid);
DEBUGFS_ADD(aid);
DEBUGFS_ADD(beacon_timeout);
DEBUGFS_ADD_MODE(tkip_mic_test, 0200);
DEBUGFS_ADD_MODE(beacon_loss, 0200);
DEBUGFS_ADD_MODE(uapsd_queues, 0600);
DEBUGFS_ADD_MODE(uapsd_max_sp_len, 0600);
DEBUGFS_ADD_MODE(tdls_wider_bw, 0600);
DEBUGFS_ADD_MODE(valid_links, 0400);
DEBUGFS_ADD_MODE(active_links, 0600);
DEBUGFS_ADD_X16(dormant_links, 0400);
}
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);
DEBUGFS_ADD_MODE(multicast_to_unicast, 0600);
}
static void add_vlan_files(struct ieee80211_sub_if_data *sdata)
{
/* add num_mcast_sta_vlan using name num_mcast_sta */
debugfs_create_file("num_mcast_sta", 0400, sdata->vif.debugfs_dir,
sdata, &num_mcast_sta_vlan_ops);
}
static void add_ibss_files(struct ieee80211_sub_if_data *sdata)
{
DEBUGFS_ADD_MODE(tsf, 0600);
}
#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);
#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);
MESHPARAMS_ADD(dot11MeshConnectedToMeshGate);
MESHPARAMS_ADD(dot11MeshNolearn);
MESHPARAMS_ADD(dot11MeshConnectedToAuthServer);
#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);
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_AP_VLAN:
add_vlan_files(sdata);
break;
default:
break;
}
}
#undef DEBUGFS_ADD_MODE
#undef DEBUGFS_ADD
#define DEBUGFS_ADD_MODE(dentry, name, mode) \
debugfs_create_file(#name, mode, dentry, \
link, &link_##name##_ops)
#define DEBUGFS_ADD(dentry, name) DEBUGFS_ADD_MODE(dentry, name, 0400)
static void add_link_files(struct ieee80211_link_data *link,
struct dentry *dentry)
{
DEBUGFS_ADD(dentry, txpower);
DEBUGFS_ADD(dentry, user_power_level);
DEBUGFS_ADD(dentry, ap_power_level);
switch (link->sdata->vif.type) {
case NL80211_IFTYPE_STATION:
DEBUGFS_ADD_MODE(dentry, smps, 0600);
break;
default:
break;
}
}
static void ieee80211_debugfs_add_netdev(struct ieee80211_sub_if_data *sdata,
bool mld_vif)
{
char buf[10+IFNAMSIZ];
sprintf(buf, "netdev:%s", sdata->name);
sdata->vif.debugfs_dir = debugfs_create_dir(buf,
sdata->local->hw.wiphy->debugfsdir);
/* deflink also has this */
sdata->deflink.debugfs_dir = sdata->vif.debugfs_dir;
sdata->debugfs.subdir_stations = debugfs_create_dir("stations",
sdata->vif.debugfs_dir);
add_files(sdata);
if (!mld_vif)
add_link_files(&sdata->deflink, sdata->vif.debugfs_dir);
}
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;
sdata->debugfs.subdir_stations = 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 (IS_ERR_OR_NULL(dir))
return;
sprintf(buf, "netdev:%s", sdata->name);
debugfs_rename(dir->d_parent, dir, dir->d_parent, buf);
}
void ieee80211_debugfs_recreate_netdev(struct ieee80211_sub_if_data *sdata,
bool mld_vif)
{
ieee80211_debugfs_remove_netdev(sdata);
ieee80211_debugfs_add_netdev(sdata, mld_vif);
if (sdata->flags & IEEE80211_SDATA_IN_DRIVER) {
drv_vif_add_debugfs(sdata->local, sdata);
if (!mld_vif)
ieee80211_link_debugfs_drv_add(&sdata->deflink);
}
}
void ieee80211_link_debugfs_add(struct ieee80211_link_data *link)
{
char link_dir_name[10];
if (WARN_ON(!link->sdata->vif.debugfs_dir || link->debugfs_dir))
return;
/* For now, this should not be called for non-MLO capable drivers */
if (WARN_ON(!(link->sdata->local->hw.wiphy->flags & WIPHY_FLAG_SUPPORTS_MLO)))
return;
snprintf(link_dir_name, sizeof(link_dir_name),
"link-%d", link->link_id);
link->debugfs_dir =
debugfs_create_dir(link_dir_name,
link->sdata->vif.debugfs_dir);
DEBUGFS_ADD(link->debugfs_dir, addr);
add_link_files(link, link->debugfs_dir);
}
void ieee80211_link_debugfs_remove(struct ieee80211_link_data *link)
{
if (!link->sdata->vif.debugfs_dir || !link->debugfs_dir) {
link->debugfs_dir = NULL;
return;
}
if (link->debugfs_dir == link->sdata->vif.debugfs_dir) {
WARN_ON(link != &link->sdata->deflink);
link->debugfs_dir = NULL;
return;
}
debugfs_remove_recursive(link->debugfs_dir);
link->debugfs_dir = NULL;
}
void ieee80211_link_debugfs_drv_add(struct ieee80211_link_data *link)
{
if (link->sdata->vif.type == NL80211_IFTYPE_MONITOR ||
WARN_ON(!link->debugfs_dir))
return;
drv_link_add_debugfs(link->sdata->local, link->sdata,
link->conf, link->debugfs_dir);
}
void ieee80211_link_debugfs_drv_remove(struct ieee80211_link_data *link)
{
if (!link || !link->debugfs_dir)
return;
if (WARN_ON(link->debugfs_dir == link->sdata->vif.debugfs_dir))
return;
/* Recreate the directory excluding the driver data */
debugfs_remove_recursive(link->debugfs_dir);
link->debugfs_dir = NULL;
ieee80211_link_debugfs_add(link);
}
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