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wifi: cfg80211/mac80211: Support control port TX from specific link

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In case of authentication with a legacy station, link addressed EAPOL
frames should be sent. Support it.

Signed-off-by: Andrei Otcheretianski <andrei.otcheretianski@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
This commit is contained in:
Andrei Otcheretianski 2022-06-30 15:27:59 +03:00 committed by Johannes Berg
parent d2bc52498b
commit 67207bab93
6 changed files with 35 additions and 12 deletions
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2
include/net/cfg80211.h
View File

@ -4580,7 +4580,7 @@ struct cfg80211_ops {
struct net_device *dev,
const u8 *buf, size_t len,
const u8 *dest, const __be16 proto,
const bool noencrypt,
const bool noencrypt, int link_id,
u64 *cookie);
int (*get_ftm_responder_stats)(struct wiphy *wiphy,

2
net/mac80211/ieee80211_i.h
View File

@ -1946,7 +1946,7 @@ void ieee80211_clear_fast_xmit(struct sta_info *sta);
int ieee80211_tx_control_port(struct wiphy *wiphy, struct net_device *dev,
const u8 *buf, size_t len,
const u8 *dest, __be16 proto, bool unencrypted,
u64 *cookie);
int link_id, u64 *cookie);
int ieee80211_probe_mesh_link(struct wiphy *wiphy, struct net_device *dev,
const u8 *buf, size_t len);

20
net/mac80211/tx.c
View File

@ -5674,7 +5674,7 @@ void ieee80211_tx_skb_tid(struct ieee80211_sub_if_data *sdata,
int ieee80211_tx_control_port(struct wiphy *wiphy, struct net_device *dev,
const u8 *buf, size_t len,
const u8 *dest, __be16 proto, bool unencrypted,
u64 *cookie)
int link_id, u64 *cookie)
{
struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
struct ieee80211_local *local = sdata->local;
@ -5714,7 +5714,23 @@ int ieee80211_tx_control_port(struct wiphy *wiphy, struct net_device *dev,
ehdr = skb_push(skb, sizeof(struct ethhdr));
memcpy(ehdr->h_dest, dest, ETH_ALEN);
memcpy(ehdr->h_source, sdata->vif.addr, ETH_ALEN);
if (link_id < 0) {
memcpy(ehdr->h_source, sdata->vif.addr, ETH_ALEN);
} else {
struct ieee80211_bss_conf *link_conf;
rcu_read_lock();
link_conf = rcu_dereference(sdata->vif.link_conf[link_id]);
if (!link_conf) {
dev_kfree_skb(skb);
rcu_read_unlock();
return -ENOLINK;
}
memcpy(ehdr->h_source, link_conf->addr, ETH_ALEN);
rcu_read_unlock();
}
ehdr->h_proto = proto;
skb->dev = dev;

5
net/wireless/nl80211.c
View File

@ -15223,6 +15223,7 @@ static int nl80211_tx_control_port(struct sk_buff *skb, struct genl_info *info)
u16 proto;
bool noencrypt;
u64 cookie = 0;
int link_id;
int err;
if (!wiphy_ext_feature_isset(&rdev->wiphy,
@ -15271,8 +15272,10 @@ static int nl80211_tx_control_port(struct sk_buff *skb, struct genl_info *info)
noencrypt =
nla_get_flag(info->attrs[NL80211_ATTR_CONTROL_PORT_NO_ENCRYPT]);
link_id = nl80211_link_id_or_invalid(info->attrs);
err = rdev_tx_control_port(rdev, dev, buf, len,
dest, cpu_to_be16(proto), noencrypt,
dest, cpu_to_be16(proto), noencrypt, link_id,
dont_wait_for_ack ? NULL : &cookie);
if (!err && !dont_wait_for_ack)
nl_set_extack_cookie_u64(info->extack, cookie);

7
net/wireless/rdev-ops.h
View File

@ -746,13 +746,14 @@ static inline int rdev_tx_control_port(struct cfg80211_registered_device *rdev,
struct net_device *dev,
const void *buf, size_t len,
const u8 *dest, __be16 proto,
const bool noencrypt, u64 *cookie)
const bool noencrypt, int link,
u64 *cookie)
{
int ret;
trace_rdev_tx_control_port(&rdev->wiphy, dev, buf, len,
dest, proto, noencrypt);
dest, proto, noencrypt, link);
ret = rdev->ops->tx_control_port(&rdev->wiphy, dev, buf, len,
dest, proto, noencrypt, cookie);
dest, proto, noencrypt, link, cookie);
if (cookie)
trace_rdev_return_int_cookie(&rdev->wiphy, ret, *cookie);
else

11
net/wireless/trace.h
View File

@ -2015,14 +2015,15 @@ TRACE_EVENT(rdev_mgmt_tx,
TRACE_EVENT(rdev_tx_control_port,
TP_PROTO(struct wiphy *wiphy, struct net_device *netdev,
const u8 *buf, size_t len, const u8 *dest, __be16 proto,
bool unencrypted),
TP_ARGS(wiphy, netdev, buf, len, dest, proto, unencrypted),
bool unencrypted, int link_id),
TP_ARGS(wiphy, netdev, buf, len, dest, proto, unencrypted, link_id),
TP_STRUCT__entry(
WIPHY_ENTRY
NETDEV_ENTRY
MAC_ENTRY(dest)
__field(__be16, proto)
__field(bool, unencrypted)
__field(int, link_id)
),
TP_fast_assign(
WIPHY_ASSIGN;
@ -2030,12 +2031,14 @@ TRACE_EVENT(rdev_tx_control_port,
MAC_ASSIGN(dest, dest);
__entry->proto = proto;
__entry->unencrypted = unencrypted;
__entry->link_id = link_id;
),
TP_printk(WIPHY_PR_FMT ", " NETDEV_PR_FMT ", " MAC_PR_FMT ","
" proto: 0x%x, unencrypted: %s",
" proto: 0x%x, unencrypted: %s, link: %d",
WIPHY_PR_ARG, NETDEV_PR_ARG, MAC_PR_ARG(dest),
be16_to_cpu(__entry->proto),
BOOL_TO_STR(__entry->unencrypted))
BOOL_TO_STR(__entry->unencrypted),
__entry->link_id)
);
TRACE_EVENT(rdev_set_noack_map,