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-rw-r--r--net/wireless/core.c20
-rw-r--r--net/wireless/ethtool.c33
-rw-r--r--net/wireless/nl80211.c62
-rw-r--r--net/wireless/reg.c45
-rw-r--r--net/wireless/reg.h1
-rw-r--r--net/wireless/util.c47
-rw-r--r--net/wireless/wext-compat.c5
7 files changed, 152 insertions, 61 deletions
diff --git a/net/wireless/core.c b/net/wireless/core.c
index e9a5f8ca4c27..fe01de29bfe8 100644
--- a/net/wireless/core.c
+++ b/net/wireless/core.c
@@ -718,13 +718,6 @@ static int cfg80211_netdev_notifier_call(struct notifier_block * nb,
wdev->ps = false;
/* allow mac80211 to determine the timeout */
wdev->ps_timeout = -1;
- if (rdev->ops->set_power_mgmt)
- if (rdev->ops->set_power_mgmt(wdev->wiphy, dev,
- wdev->ps,
- wdev->ps_timeout)) {
- /* assume this means it's off */
- wdev->ps = false;
- }
if (!dev->ethtool_ops)
dev->ethtool_ops = &cfg80211_ethtool_ops;
@@ -813,6 +806,19 @@ static int cfg80211_netdev_notifier_call(struct notifier_block * nb,
rdev->opencount++;
mutex_unlock(&rdev->devlist_mtx);
cfg80211_unlock_rdev(rdev);
+
+ /*
+ * Configure power management to the driver here so that its
+ * correctly set also after interface type changes etc.
+ */
+ if (wdev->iftype == NL80211_IFTYPE_STATION &&
+ rdev->ops->set_power_mgmt)
+ if (rdev->ops->set_power_mgmt(wdev->wiphy, dev,
+ wdev->ps,
+ wdev->ps_timeout)) {
+ /* assume this means it's off */
+ wdev->ps = false;
+ }
break;
case NETDEV_UNREGISTER:
/*
diff --git a/net/wireless/ethtool.c b/net/wireless/ethtool.c
index ca4c825be93d..9bde4d1d3e9b 100644
--- a/net/wireless/ethtool.c
+++ b/net/wireless/ethtool.c
@@ -1,5 +1,6 @@
#include <linux/utsname.h>
#include <net/cfg80211.h>
+#include "core.h"
#include "ethtool.h"
static void cfg80211_get_drvinfo(struct net_device *dev,
@@ -37,9 +38,41 @@ static void cfg80211_get_regs(struct net_device *dev, struct ethtool_regs *regs,
regs->len = 0;
}
+static void cfg80211_get_ringparam(struct net_device *dev,
+ struct ethtool_ringparam *rp)
+{
+ struct wireless_dev *wdev = dev->ieee80211_ptr;
+ struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
+
+ memset(rp, 0, sizeof(*rp));
+
+ if (rdev->ops->get_ringparam)
+ rdev->ops->get_ringparam(wdev->wiphy,
+ &rp->tx_pending, &rp->tx_max_pending,
+ &rp->rx_pending, &rp->rx_max_pending);
+}
+
+static int cfg80211_set_ringparam(struct net_device *dev,
+ struct ethtool_ringparam *rp)
+{
+ struct wireless_dev *wdev = dev->ieee80211_ptr;
+ struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
+
+ if (rp->rx_mini_pending != 0 || rp->rx_jumbo_pending != 0)
+ return -EINVAL;
+
+ if (rdev->ops->set_ringparam)
+ return rdev->ops->set_ringparam(wdev->wiphy,
+ rp->tx_pending, rp->rx_pending);
+
+ return -ENOTSUPP;
+}
+
const struct ethtool_ops cfg80211_ethtool_ops = {
.get_drvinfo = cfg80211_get_drvinfo,
.get_regs_len = cfg80211_get_regs_len,
.get_regs = cfg80211_get_regs,
.get_link = ethtool_op_get_link,
+ .get_ringparam = cfg80211_get_ringparam,
+ .set_ringparam = cfg80211_set_ringparam,
};
diff --git a/net/wireless/nl80211.c b/net/wireless/nl80211.c
index 9b62710891a2..4ebce4284e9d 100644
--- a/net/wireless/nl80211.c
+++ b/net/wireless/nl80211.c
@@ -1968,13 +1968,41 @@ static int parse_station_flags(struct genl_info *info,
return 0;
}
+static bool nl80211_put_sta_rate(struct sk_buff *msg, struct rate_info *info,
+ int attr)
+{
+ struct nlattr *rate;
+ u16 bitrate;
+
+ rate = nla_nest_start(msg, attr);
+ if (!rate)
+ goto nla_put_failure;
+
+ /* cfg80211_calculate_bitrate will return 0 for mcs >= 32 */
+ bitrate = cfg80211_calculate_bitrate(info);
+ if (bitrate > 0)
+ NLA_PUT_U16(msg, NL80211_RATE_INFO_BITRATE, bitrate);
+
+ if (info->flags & RATE_INFO_FLAGS_MCS)
+ NLA_PUT_U8(msg, NL80211_RATE_INFO_MCS, info->mcs);
+ if (info->flags & RATE_INFO_FLAGS_40_MHZ_WIDTH)
+ NLA_PUT_FLAG(msg, NL80211_RATE_INFO_40_MHZ_WIDTH);
+ if (info->flags & RATE_INFO_FLAGS_SHORT_GI)
+ NLA_PUT_FLAG(msg, NL80211_RATE_INFO_SHORT_GI);
+
+ nla_nest_end(msg, rate);
+ return true;
+
+nla_put_failure:
+ return false;
+}
+
static int nl80211_send_station(struct sk_buff *msg, u32 pid, u32 seq,
int flags, struct net_device *dev,
const u8 *mac_addr, struct station_info *sinfo)
{
void *hdr;
- struct nlattr *sinfoattr, *txrate;
- u16 bitrate;
+ struct nlattr *sinfoattr;
hdr = nl80211hdr_put(msg, pid, seq, flags, NL80211_CMD_NEW_STATION);
if (!hdr)
@@ -2013,24 +2041,14 @@ static int nl80211_send_station(struct sk_buff *msg, u32 pid, u32 seq,
NLA_PUT_U8(msg, NL80211_STA_INFO_SIGNAL_AVG,
sinfo->signal_avg);
if (sinfo->filled & STATION_INFO_TX_BITRATE) {
- txrate = nla_nest_start(msg, NL80211_STA_INFO_TX_BITRATE);
- if (!txrate)
+ if (!nl80211_put_sta_rate(msg, &sinfo->txrate,
+ NL80211_STA_INFO_TX_BITRATE))
+ goto nla_put_failure;
+ }
+ if (sinfo->filled & STATION_INFO_RX_BITRATE) {
+ if (!nl80211_put_sta_rate(msg, &sinfo->rxrate,
+ NL80211_STA_INFO_RX_BITRATE))
goto nla_put_failure;
-
- /* cfg80211_calculate_bitrate will return 0 for mcs >= 32 */
- bitrate = cfg80211_calculate_bitrate(&sinfo->txrate);
- if (bitrate > 0)
- NLA_PUT_U16(msg, NL80211_RATE_INFO_BITRATE, bitrate);
-
- if (sinfo->txrate.flags & RATE_INFO_FLAGS_MCS)
- NLA_PUT_U8(msg, NL80211_RATE_INFO_MCS,
- sinfo->txrate.mcs);
- if (sinfo->txrate.flags & RATE_INFO_FLAGS_40_MHZ_WIDTH)
- NLA_PUT_FLAG(msg, NL80211_RATE_INFO_40_MHZ_WIDTH);
- if (sinfo->txrate.flags & RATE_INFO_FLAGS_SHORT_GI)
- NLA_PUT_FLAG(msg, NL80211_RATE_INFO_SHORT_GI);
-
- nla_nest_end(msg, txrate);
}
if (sinfo->filled & STATION_INFO_RX_PACKETS)
NLA_PUT_U32(msg, NL80211_STA_INFO_RX_PACKETS,
@@ -2718,7 +2736,7 @@ static int nl80211_get_mesh_config(struct sk_buff *skb,
hdr = nl80211hdr_put(msg, info->snd_pid, info->snd_seq, 0,
NL80211_CMD_GET_MESH_CONFIG);
if (!hdr)
- goto nla_put_failure;
+ goto out;
pinfoattr = nla_nest_start(msg, NL80211_ATTR_MESH_CONFIG);
if (!pinfoattr)
goto nla_put_failure;
@@ -2759,6 +2777,7 @@ static int nl80211_get_mesh_config(struct sk_buff *skb,
nla_put_failure:
genlmsg_cancel(msg, hdr);
+ out:
nlmsg_free(msg);
return -ENOBUFS;
}
@@ -2954,7 +2973,7 @@ static int nl80211_get_reg(struct sk_buff *skb, struct genl_info *info)
hdr = nl80211hdr_put(msg, info->snd_pid, info->snd_seq, 0,
NL80211_CMD_GET_REG);
if (!hdr)
- goto nla_put_failure;
+ goto put_failure;
NLA_PUT_STRING(msg, NL80211_ATTR_REG_ALPHA2,
cfg80211_regdomain->alpha2);
@@ -3001,6 +3020,7 @@ static int nl80211_get_reg(struct sk_buff *skb, struct genl_info *info)
nla_put_failure:
genlmsg_cancel(msg, hdr);
+put_failure:
nlmsg_free(msg);
err = -EMSGSIZE;
out:
diff --git a/net/wireless/reg.c b/net/wireless/reg.c
index 37693b6ef23a..3332d5bce317 100644
--- a/net/wireless/reg.c
+++ b/net/wireless/reg.c
@@ -63,6 +63,10 @@ static struct regulatory_request *last_request;
/* To trigger userspace events */
static struct platform_device *reg_pdev;
+static struct device_type reg_device_type = {
+ .uevent = reg_device_uevent,
+};
+
/*
* Central wireless core regulatory domains, we only need two,
* the current one and a world regulatory domain in case we have no
@@ -362,16 +366,11 @@ static inline void reg_regdb_query(const char *alpha2) {}
/*
* This lets us keep regulatory code which is updated on a regulatory
- * basis in userspace.
+ * basis in userspace. Country information is filled in by
+ * reg_device_uevent
*/
static int call_crda(const char *alpha2)
{
- char country_env[9 + 2] = "COUNTRY=";
- char *envp[] = {
- country_env,
- NULL
- };
-
if (!is_world_regdom((char *) alpha2))
pr_info("Calling CRDA for country: %c%c\n",
alpha2[0], alpha2[1]);
@@ -381,10 +380,7 @@ static int call_crda(const char *alpha2)
/* query internal regulatory database (if it exists) */
reg_regdb_query(alpha2);
- country_env[8] = alpha2[0];
- country_env[9] = alpha2[1];
-
- return kobject_uevent_env(&reg_pdev->dev.kobj, KOBJ_CHANGE, envp);
+ return kobject_uevent(&reg_pdev->dev.kobj, KOBJ_CHANGE);
}
/* Used by nl80211 before kmalloc'ing our regulatory domain */
@@ -1801,9 +1797,9 @@ void regulatory_hint_disconnect(void)
static bool freq_is_chan_12_13_14(u16 freq)
{
- if (freq == ieee80211_channel_to_frequency(12) ||
- freq == ieee80211_channel_to_frequency(13) ||
- freq == ieee80211_channel_to_frequency(14))
+ if (freq == ieee80211_channel_to_frequency(12, IEEE80211_BAND_2GHZ) ||
+ freq == ieee80211_channel_to_frequency(13, IEEE80211_BAND_2GHZ) ||
+ freq == ieee80211_channel_to_frequency(14, IEEE80211_BAND_2GHZ))
return true;
return false;
}
@@ -2087,6 +2083,25 @@ int set_regdom(const struct ieee80211_regdomain *rd)
return r;
}
+#ifdef CONFIG_HOTPLUG
+int reg_device_uevent(struct device *dev, struct kobj_uevent_env *env)
+{
+ if (last_request && !last_request->processed) {
+ if (add_uevent_var(env, "COUNTRY=%c%c",
+ last_request->alpha2[0],
+ last_request->alpha2[1]))
+ return -ENOMEM;
+ }
+
+ return 0;
+}
+#else
+int reg_device_uevent(struct device *dev, struct kobj_uevent_env *env)
+{
+ return -ENODEV;
+}
+#endif /* CONFIG_HOTPLUG */
+
/* Caller must hold cfg80211_mutex */
void reg_device_remove(struct wiphy *wiphy)
{
@@ -2118,6 +2133,8 @@ int __init regulatory_init(void)
if (IS_ERR(reg_pdev))
return PTR_ERR(reg_pdev);
+ reg_pdev->dev.type = &reg_device_type;
+
spin_lock_init(&reg_requests_lock);
spin_lock_init(&reg_pending_beacons_lock);
diff --git a/net/wireless/reg.h b/net/wireless/reg.h
index c4695d07af23..b67d1c3a2fb9 100644
--- a/net/wireless/reg.h
+++ b/net/wireless/reg.h
@@ -8,6 +8,7 @@ bool reg_is_valid_request(const char *alpha2);
int regulatory_hint_user(const char *alpha2);
+int reg_device_uevent(struct device *dev, struct kobj_uevent_env *env);
void reg_device_remove(struct wiphy *wiphy);
int __init regulatory_init(void);
diff --git a/net/wireless/util.c b/net/wireless/util.c
index 7620ae2fcf18..6a750bc6bcfe 100644
--- a/net/wireless/util.c
+++ b/net/wireless/util.c
@@ -29,29 +29,37 @@ ieee80211_get_response_rate(struct ieee80211_supported_band *sband,
}
EXPORT_SYMBOL(ieee80211_get_response_rate);
-int ieee80211_channel_to_frequency(int chan)
+int ieee80211_channel_to_frequency(int chan, enum ieee80211_band band)
{
- if (chan < 14)
- return 2407 + chan * 5;
-
- if (chan == 14)
- return 2484;
-
- /* FIXME: 802.11j 17.3.8.3.2 */
- return (chan + 1000) * 5;
+ /* see 802.11 17.3.8.3.2 and Annex J
+ * there are overlapping channel numbers in 5GHz and 2GHz bands */
+ if (band == IEEE80211_BAND_5GHZ) {
+ if (chan >= 182 && chan <= 196)
+ return 4000 + chan * 5;
+ else
+ return 5000 + chan * 5;
+ } else { /* IEEE80211_BAND_2GHZ */
+ if (chan == 14)
+ return 2484;
+ else if (chan < 14)
+ return 2407 + chan * 5;
+ else
+ return 0; /* not supported */
+ }
}
EXPORT_SYMBOL(ieee80211_channel_to_frequency);
int ieee80211_frequency_to_channel(int freq)
{
+ /* see 802.11 17.3.8.3.2 and Annex J */
if (freq == 2484)
return 14;
-
- if (freq < 2484)
+ else if (freq < 2484)
return (freq - 2407) / 5;
-
- /* FIXME: 802.11j 17.3.8.3.2 */
- return freq/5 - 1000;
+ else if (freq >= 4910 && freq <= 4980)
+ return (freq - 4000) / 5;
+ else
+ return (freq - 5000) / 5;
}
EXPORT_SYMBOL(ieee80211_frequency_to_channel);
@@ -159,12 +167,15 @@ int cfg80211_validate_key_settings(struct cfg80211_registered_device *rdev,
/*
* Disallow pairwise keys with non-zero index unless it's WEP
- * (because current deployments use pairwise WEP keys with
- * non-zero indizes but 802.11i clearly specifies to use zero)
+ * or a vendor specific cipher (because current deployments use
+ * pairwise WEP keys with non-zero indices and for vendor specific
+ * ciphers this should be validated in the driver or hardware level
+ * - but 802.11i clearly specifies to use zero)
*/
if (pairwise && key_idx &&
- params->cipher != WLAN_CIPHER_SUITE_WEP40 &&
- params->cipher != WLAN_CIPHER_SUITE_WEP104)
+ ((params->cipher == WLAN_CIPHER_SUITE_TKIP) ||
+ (params->cipher == WLAN_CIPHER_SUITE_CCMP) ||
+ (params->cipher == WLAN_CIPHER_SUITE_AES_CMAC)))
return -EINVAL;
switch (params->cipher) {
diff --git a/net/wireless/wext-compat.c b/net/wireless/wext-compat.c
index d112f038edf0..0bf169bb770e 100644
--- a/net/wireless/wext-compat.c
+++ b/net/wireless/wext-compat.c
@@ -267,9 +267,12 @@ int cfg80211_wext_freq(struct wiphy *wiphy, struct iw_freq *freq)
* -EINVAL for impossible things.
*/
if (freq->e == 0) {
+ enum ieee80211_band band = IEEE80211_BAND_2GHZ;
if (freq->m < 0)
return 0;
- return ieee80211_channel_to_frequency(freq->m);
+ if (freq->m > 14)
+ band = IEEE80211_BAND_5GHZ;
+ return ieee80211_channel_to_frequency(freq->m, band);
} else {
int i, div = 1000000;
for (i = 0; i < freq->e; i++)
Copyright © 1996 – 2023 Jason A. Donenfeld. All Rights Reverse Engineered.