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-rw-r--r--include/net/cfg80211.h41
-rw-r--r--include/uapi/linux/nl80211.h19
-rw-r--r--net/wireless/nl80211.c76
-rw-r--r--net/wireless/rdev-ops.h13
-rw-r--r--net/wireless/trace.h46
5 files changed, 195 insertions, 0 deletions
diff --git a/include/net/cfg80211.h b/include/net/cfg80211.h
index 73a523901c73..dfef0d5b5d3d 100644
--- a/include/net/cfg80211.h
+++ b/include/net/cfg80211.h
@@ -1763,6 +1763,21 @@ struct cfg80211_gtk_rekey_data {
};
/**
+ * struct cfg80211_update_ft_ies_params - FT IE Information
+ *
+ * This structure provides information needed to update the fast transition IE
+ *
+ * @md: The Mobility Domain ID, 2 Octet value
+ * @ie: Fast Transition IEs
+ * @ie_len: Length of ft_ie in octets
+ */
+struct cfg80211_update_ft_ies_params {
+ u16 md;
+ const u8 *ie;
+ size_t ie_len;
+};
+
+/**
* struct cfg80211_ops - backend description for wireless configuration
*
* This struct is registered by fullmac card drivers and/or wireless stacks
@@ -2208,6 +2223,8 @@ struct cfg80211_ops {
int (*start_radar_detection)(struct wiphy *wiphy,
struct net_device *dev,
struct cfg80211_chan_def *chandef);
+ int (*update_ft_ies)(struct wiphy *wiphy, struct net_device *dev,
+ struct cfg80211_update_ft_ies_params *ftie);
};
/*
@@ -4045,6 +4062,30 @@ u32 cfg80211_calculate_bitrate(struct rate_info *rate);
void cfg80211_unregister_wdev(struct wireless_dev *wdev);
/**
+ * struct cfg80211_ft_event - FT Information Elements
+ * @ies: FT IEs
+ * @ies_len: length of the FT IE in bytes
+ * @target_ap: target AP's MAC address
+ * @ric_ies: RIC IE
+ * @ric_ies_len: length of the RIC IE in bytes
+ */
+struct cfg80211_ft_event_params {
+ const u8 *ies;
+ size_t ies_len;
+ const u8 *target_ap;
+ const u8 *ric_ies;
+ size_t ric_ies_len;
+};
+
+/**
+ * cfg80211_ft_event - notify userspace about FT IE and RIC IE
+ * @netdev: network device
+ * @ft_event: IE information
+ */
+void cfg80211_ft_event(struct net_device *netdev,
+ struct cfg80211_ft_event_params *ft_event);
+
+/**
* cfg80211_get_p2p_attr - find and copy a P2P attribute from IE buffer
* @ies: the input IE buffer
* @len: the input length
diff --git a/include/uapi/linux/nl80211.h b/include/uapi/linux/nl80211.h
index 2c3e88360037..2d0cff57ff89 100644
--- a/include/uapi/linux/nl80211.h
+++ b/include/uapi/linux/nl80211.h
@@ -629,6 +629,14 @@
* i.e. features for the nl80211 protocol rather than device features.
* Returns the features in the %NL80211_ATTR_PROTOCOL_FEATURES bitmap.
*
+ * @NL80211_CMD_UPDATE_FT_IES: Pass down the most up-to-date Fast Transition
+ * Information Element to the WLAN driver
+ *
+ * @NL80211_CMD_FT_EVENT: Send a Fast transition event from the WLAN driver
+ * to the supplicant. This will carry the target AP's MAC address along
+ * with the relevant Information Elements. This event is used to report
+ * received FT IEs (MDIE, FTIE, RSN IE, TIE, RICIE).
+ *
* @NL80211_CMD_MAX: highest used command number
* @__NL80211_CMD_AFTER_LAST: internal use
*/
@@ -785,6 +793,9 @@ enum nl80211_commands {
NL80211_CMD_GET_PROTOCOL_FEATURES,
+ NL80211_CMD_UPDATE_FT_IES,
+ NL80211_CMD_FT_EVENT,
+
/* add new commands above here */
/* used to define NL80211_CMD_MAX below */
@@ -1396,6 +1407,11 @@ enum nl80211_commands {
* receiving the data for a single wiphy split across multiple
* messages, given with wiphy dump message
*
+ * @NL80211_ATTR_MDID: Mobility Domain Identifier
+ *
+ * @NL80211_ATTR_IE_RIC: Resource Information Container Information
+ * Element
+ *
* @NL80211_ATTR_MAX: highest attribute number currently defined
* @__NL80211_ATTR_AFTER_LAST: internal use
*/
@@ -1688,6 +1704,9 @@ enum nl80211_attrs {
NL80211_ATTR_DISABLE_VHT,
NL80211_ATTR_VHT_CAPABILITY_MASK,
+ NL80211_ATTR_MDID,
+ NL80211_ATTR_IE_RIC,
+
/* add attributes here, update the policy in nl80211.c */
__NL80211_ATTR_AFTER_LAST,
diff --git a/net/wireless/nl80211.c b/net/wireless/nl80211.c
index a8bd453d22b9..08de0c6035f1 100644
--- a/net/wireless/nl80211.c
+++ b/net/wireless/nl80211.c
@@ -375,6 +375,9 @@ static const struct nla_policy nl80211_policy[NL80211_ATTR_MAX+1] = {
[NL80211_ATTR_VHT_CAPABILITY_MASK] = {
.len = NL80211_VHT_CAPABILITY_LEN,
},
+ [NL80211_ATTR_MDID] = { .type = NLA_U16 },
+ [NL80211_ATTR_IE_RIC] = { .type = NLA_BINARY,
+ .len = IEEE80211_MAX_DATA_LEN },
};
/* policy for the key attributes */
@@ -8160,6 +8163,27 @@ static int nl80211_get_protocol_features(struct sk_buff *skb,
return -ENOBUFS;
}
+static int nl80211_update_ft_ies(struct sk_buff *skb, struct genl_info *info)
+{
+ struct cfg80211_registered_device *rdev = info->user_ptr[0];
+ struct cfg80211_update_ft_ies_params ft_params;
+ struct net_device *dev = info->user_ptr[1];
+
+ if (!rdev->ops->update_ft_ies)
+ return -EOPNOTSUPP;
+
+ if (!info->attrs[NL80211_ATTR_MDID] ||
+ !is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
+ return -EINVAL;
+
+ memset(&ft_params, 0, sizeof(ft_params));
+ ft_params.md = nla_get_u16(info->attrs[NL80211_ATTR_MDID]);
+ ft_params.ie = nla_data(info->attrs[NL80211_ATTR_IE]);
+ ft_params.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
+
+ return rdev_update_ft_ies(rdev, dev, &ft_params);
+}
+
#define NL80211_FLAG_NEED_WIPHY 0x01
#define NL80211_FLAG_NEED_NETDEV 0x02
#define NL80211_FLAG_NEED_RTNL 0x04
@@ -8841,6 +8865,14 @@ static struct genl_ops nl80211_ops[] = {
.doit = nl80211_get_protocol_features,
.policy = nl80211_policy,
},
+ {
+ .cmd = NL80211_CMD_UPDATE_FT_IES,
+ .doit = nl80211_update_ft_ies,
+ .policy = nl80211_policy,
+ .flags = GENL_ADMIN_PERM,
+ .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
+ NL80211_FLAG_NEED_RTNL,
+ },
};
static struct genl_multicast_group nl80211_mlme_mcgrp = {
@@ -10542,6 +10574,50 @@ static struct notifier_block nl80211_netlink_notifier = {
.notifier_call = nl80211_netlink_notify,
};
+void cfg80211_ft_event(struct net_device *netdev,
+ struct cfg80211_ft_event_params *ft_event)
+{
+ struct wiphy *wiphy = netdev->ieee80211_ptr->wiphy;
+ struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
+ struct sk_buff *msg;
+ void *hdr;
+ int err;
+
+ trace_cfg80211_ft_event(wiphy, netdev, ft_event);
+
+ if (!ft_event->target_ap)
+ return;
+
+ msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
+ if (!msg)
+ return;
+
+ hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FT_EVENT);
+ if (!hdr) {
+ nlmsg_free(msg);
+ return;
+ }
+
+ nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
+ nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
+ nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, ft_event->target_ap);
+ if (ft_event->ies)
+ nla_put(msg, NL80211_ATTR_IE, ft_event->ies_len, ft_event->ies);
+ if (ft_event->ric_ies)
+ nla_put(msg, NL80211_ATTR_IE_RIC, ft_event->ric_ies_len,
+ ft_event->ric_ies);
+
+ err = genlmsg_end(msg, hdr);
+ if (err < 0) {
+ nlmsg_free(msg);
+ return;
+ }
+
+ genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
+ nl80211_mlme_mcgrp.id, GFP_KERNEL);
+}
+EXPORT_SYMBOL(cfg80211_ft_event);
+
/* initialisation/exit functions */
int nl80211_init(void)
diff --git a/net/wireless/rdev-ops.h b/net/wireless/rdev-ops.h
index 422d38291d66..8c8b26f574e8 100644
--- a/net/wireless/rdev-ops.h
+++ b/net/wireless/rdev-ops.h
@@ -887,4 +887,17 @@ static inline int rdev_set_mac_acl(struct cfg80211_registered_device *rdev,
trace_rdev_return_int(&rdev->wiphy, ret);
return ret;
}
+
+static inline int rdev_update_ft_ies(struct cfg80211_registered_device *rdev,
+ struct net_device *dev,
+ struct cfg80211_update_ft_ies_params *ftie)
+{
+ int ret;
+
+ trace_rdev_update_ft_ies(&rdev->wiphy, dev, ftie);
+ ret = rdev->ops->update_ft_ies(&rdev->wiphy, dev, ftie);
+ trace_rdev_return_int(&rdev->wiphy, ret);
+ return ret;
+}
+
#endif /* __CFG80211_RDEV_OPS */
diff --git a/net/wireless/trace.h b/net/wireless/trace.h
index b7a531380e19..ccadef2106ac 100644
--- a/net/wireless/trace.h
+++ b/net/wireless/trace.h
@@ -1785,6 +1785,26 @@ TRACE_EVENT(rdev_set_mac_acl,
WIPHY_PR_ARG, NETDEV_PR_ARG, __entry->acl_policy)
);
+TRACE_EVENT(rdev_update_ft_ies,
+ TP_PROTO(struct wiphy *wiphy, struct net_device *netdev,
+ struct cfg80211_update_ft_ies_params *ftie),
+ TP_ARGS(wiphy, netdev, ftie),
+ TP_STRUCT__entry(
+ WIPHY_ENTRY
+ NETDEV_ENTRY
+ __field(u16, md)
+ __dynamic_array(u8, ie, ftie->ie_len)
+ ),
+ TP_fast_assign(
+ WIPHY_ASSIGN;
+ NETDEV_ASSIGN;
+ __entry->md = ftie->md;
+ memcpy(__get_dynamic_array(ie), ftie->ie, ftie->ie_len);
+ ),
+ TP_printk(WIPHY_PR_FMT ", " NETDEV_PR_FMT ", md: 0x%x",
+ WIPHY_PR_ARG, NETDEV_PR_ARG, __entry->md)
+);
+
/*************************************************************
* cfg80211 exported functions traces *
*************************************************************/
@@ -2413,6 +2433,32 @@ TRACE_EVENT(cfg80211_report_wowlan_wakeup,
TP_printk(WIPHY_PR_FMT ", " WDEV_PR_FMT, WIPHY_PR_ARG, WDEV_PR_ARG)
);
+TRACE_EVENT(cfg80211_ft_event,
+ TP_PROTO(struct wiphy *wiphy, struct net_device *netdev,
+ struct cfg80211_ft_event_params *ft_event),
+ TP_ARGS(wiphy, netdev, ft_event),
+ TP_STRUCT__entry(
+ WIPHY_ENTRY
+ NETDEV_ENTRY
+ __dynamic_array(u8, ies, ft_event->ies_len)
+ MAC_ENTRY(target_ap)
+ __dynamic_array(u8, ric_ies, ft_event->ric_ies_len)
+ ),
+ TP_fast_assign(
+ WIPHY_ASSIGN;
+ NETDEV_ASSIGN;
+ if (ft_event->ies)
+ memcpy(__get_dynamic_array(ies), ft_event->ies,
+ ft_event->ies_len);
+ MAC_ASSIGN(target_ap, ft_event->target_ap);
+ if (ft_event->ric_ies)
+ memcpy(__get_dynamic_array(ric_ies), ft_event->ric_ies,
+ ft_event->ric_ies_len);
+ ),
+ TP_printk(WIPHY_PR_FMT ", " NETDEV_PR_FMT ", target_ap: " MAC_PR_FMT,
+ WIPHY_PR_ARG, NETDEV_PR_ARG, MAC_PR_ARG(target_ap))
+);
+
#endif /* !__RDEV_OPS_TRACE || TRACE_HEADER_MULTI_READ */
#undef TRACE_INCLUDE_PATH
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-25 00:36:33 +0000