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linux/net/mac80211/debugfs_netdev.c
Ilan Peer 00f823b68e wifi: mac80211: Rename and update IEEE80211_VIF_DISABLE_SMPS_OVERRIDE 
EMLSR operation and SMPS operation cannot coexist. Thus, when EMLSR is
enabled, all SMPS signaling towards the AP should be stopped (it is
expected that the AP will consider SMPS to be off).

Rename IEEE80211_VIF_DISABLE_SMPS_OVERRIDE to IEEE80211_VIF_EML_ACTIVE
and use the flag as an indication from the driver that EMLSR is enabled.
When EMLSR is enabled SMPS flows towards the AP MLD should be stopped.

Signed-off-by: Ilan Peer <ilan.peer@intel.com>
Signed-off-by: Gregory Greenman <gregory.greenman@intel.com>
Link: https://lore.kernel.org/r/20230928172905.fb2c2f9a0645.If6df5357568abd623a081f0f33b07e63fb8bba99@changeid
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2023-10-23 11:43:27 +02:00

1054 lines
30 KiB
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"
static ssize_t ieee80211_if_read_sdata(
struct ieee80211_sub_if_data *sdata,
char __user *userbuf,
size_t count, loff_t *ppos,
ssize_t (*format)(const struct ieee80211_sub_if_data *sdata, char *, int))
{
char buf[200];
ssize_t ret = -EINVAL;
wiphy_lock(sdata->local->hw.wiphy);
ret = (*format)(sdata, buf, sizeof(buf));
wiphy_unlock(sdata->local->hw.wiphy);
if (ret >= 0)
ret = simple_read_from_buffer(userbuf, count, ppos, buf, ret);
return ret;
}
static ssize_t ieee80211_if_write_sdata(
struct ieee80211_sub_if_data *sdata,
const char __user *userbuf,
size_t count, loff_t *ppos,
ssize_t (*write)(struct ieee80211_sub_if_data *sdata, 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';
wiphy_lock(sdata->local->hw.wiphy);
ret = (*write)(sdata, buf, count);
wiphy_unlock(sdata->local->hw.wiphy);
return ret;
}
static ssize_t ieee80211_if_read_link(
struct ieee80211_link_data *link,
char __user *userbuf,
size_t count, loff_t *ppos,
ssize_t (*format)(const struct ieee80211_link_data *link, char *, int))
{
char buf[200];
ssize_t ret = -EINVAL;
wiphy_lock(link->sdata->local->hw.wiphy);
ret = (*format)(link, buf, sizeof(buf));
wiphy_unlock(link->sdata->local->hw.wiphy);
if (ret >= 0)
ret = simple_read_from_buffer(userbuf, count, ppos, buf, ret);
return ret;
}
static ssize_t ieee80211_if_write_link(
struct ieee80211_link_data *link,
const char __user *userbuf,
size_t count, loff_t *ppos,
ssize_t (*write)(struct ieee80211_link_data *link, 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';
wiphy_lock(link->sdata->local->hw.wiphy);
ret = (*write)(link, buf, count);
wiphy_unlock(link->sdata->local->hw.wiphy);
return ret;
}
#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->private_data, \
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->private_data, 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->private_data, \
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->private_data, 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;
}
}
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);
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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