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-rw-r--r--include/net/cfg80211.h42
-rw-r--r--include/uapi/linux/nl80211.h7
-rw-r--r--net/wireless/nl80211.c72
-rw-r--r--net/wireless/rdev-ops.h13
-rw-r--r--net/wireless/trace.h38
5 files changed, 172 insertions, 0 deletions
diff --git a/include/net/cfg80211.h b/include/net/cfg80211.h
index 5859a5e02454..70432fd638af 100644
--- a/include/net/cfg80211.h
+++ b/include/net/cfg80211.h
@@ -3111,6 +3111,32 @@ struct cfg80211_pmsr_request {
};
/**
+ * struct cfg80211_update_owe_info - OWE Information
+ *
+ * This structure provides information needed for the drivers to offload OWE
+ * (Opportunistic Wireless Encryption) processing to the user space.
+ *
+ * Commonly used across update_owe_info request and event interfaces.
+ *
+ * @peer: MAC address of the peer device for which the OWE processing
+ * has to be done.
+ * @status: status code, %WLAN_STATUS_SUCCESS for successful OWE info
+ * processing, use %WLAN_STATUS_UNSPECIFIED_FAILURE if user space
+ * cannot give you the real status code for failures. Used only for
+ * OWE update request command interface (user space to driver).
+ * @ie: IEs obtained from the peer or constructed by the user space. These are
+ * the IEs of the remote peer in the event from the host driver and
+ * the constructed IEs by the user space in the request interface.
+ * @ie_len: Length of IEs in octets.
+ */
+struct cfg80211_update_owe_info {
+ u8 peer[ETH_ALEN] __aligned(2);
+ u16 status;
+ 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
@@ -3447,6 +3473,10 @@ struct cfg80211_pmsr_request {
* Statistics should be cumulative, currently no way to reset is provided.
* @start_pmsr: start peer measurement (e.g. FTM)
* @abort_pmsr: abort peer measurement
+ *
+ * @update_owe_info: Provide updated OWE info to driver. Driver implementing SME
+ * but offloading OWE processing to the user space will get the updated
+ * DH IE through this interface.
*/
struct cfg80211_ops {
int (*suspend)(struct wiphy *wiphy, struct cfg80211_wowlan *wow);
@@ -3761,6 +3791,8 @@ struct cfg80211_ops {
struct cfg80211_pmsr_request *request);
void (*abort_pmsr)(struct wiphy *wiphy, struct wireless_dev *wdev,
struct cfg80211_pmsr_request *request);
+ int (*update_owe_info)(struct wiphy *wiphy, struct net_device *dev,
+ struct cfg80211_update_owe_info *owe_info);
};
/*
@@ -7219,4 +7251,14 @@ void cfg80211_pmsr_complete(struct wireless_dev *wdev,
#define wiphy_WARN(wiphy, format, args...) \
WARN(1, "wiphy: %s\n" format, wiphy_name(wiphy), ##args);
+/**
+ * cfg80211_update_owe_info_event - Notify the peer's OWE info to user space
+ * @netdev: network device
+ * @owe_info: peer's owe info
+ * @gfp: allocation flags
+ */
+void cfg80211_update_owe_info_event(struct net_device *netdev,
+ struct cfg80211_update_owe_info *owe_info,
+ gfp_t gfp);
+
#endif /* __NET_CFG80211_H */
diff --git a/include/uapi/linux/nl80211.h b/include/uapi/linux/nl80211.h
index 07457f4aea00..a99d75bef598 100644
--- a/include/uapi/linux/nl80211.h
+++ b/include/uapi/linux/nl80211.h
@@ -1065,6 +1065,11 @@
* indicated by %NL80211_ATTR_WIPHY_FREQ and other attributes
* determining the width and type.
*
+ * @NL80211_CMD_UPDATE_OWE_INFO: This interface allows the host driver to
+ * offload OWE processing to user space. This intends to support
+ * OWE AKM by the host drivers that implement SME but rely
+ * on the user space for the cryptographic/DH IE processing in AP mode.
+ *
* @NL80211_CMD_MAX: highest used command number
* @__NL80211_CMD_AFTER_LAST: internal use
*/
@@ -1285,6 +1290,8 @@ enum nl80211_commands {
NL80211_CMD_NOTIFY_RADAR,
+ NL80211_CMD_UPDATE_OWE_INFO,
+
/* add new commands above here */
/* used to define NL80211_CMD_MAX below */
diff --git a/net/wireless/nl80211.c b/net/wireless/nl80211.c
index 7556c0479b3c..0124bab1f8a7 100644
--- a/net/wireless/nl80211.c
+++ b/net/wireless/nl80211.c
@@ -13316,6 +13316,31 @@ nla_put_failure:
return -ENOBUFS;
}
+static int nl80211_update_owe_info(struct sk_buff *skb, struct genl_info *info)
+{
+ struct cfg80211_registered_device *rdev = info->user_ptr[0];
+ struct cfg80211_update_owe_info owe_info;
+ struct net_device *dev = info->user_ptr[1];
+
+ if (!rdev->ops->update_owe_info)
+ return -EOPNOTSUPP;
+
+ if (!info->attrs[NL80211_ATTR_STATUS_CODE] ||
+ !info->attrs[NL80211_ATTR_MAC])
+ return -EINVAL;
+
+ memset(&owe_info, 0, sizeof(owe_info));
+ owe_info.status = nla_get_u16(info->attrs[NL80211_ATTR_STATUS_CODE]);
+ nla_memcpy(owe_info.peer, info->attrs[NL80211_ATTR_MAC], ETH_ALEN);
+
+ if (info->attrs[NL80211_ATTR_IE]) {
+ owe_info.ie = nla_data(info->attrs[NL80211_ATTR_IE]);
+ owe_info.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
+ }
+
+ return rdev_update_owe_info(rdev, dev, &owe_info);
+}
+
#define NL80211_FLAG_NEED_WIPHY 0x01
#define NL80211_FLAG_NEED_NETDEV 0x02
#define NL80211_FLAG_NEED_RTNL 0x04
@@ -14146,6 +14171,13 @@ static const struct genl_ops nl80211_ops[] = {
.internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
NL80211_FLAG_NEED_RTNL,
},
+ {
+ .cmd = NL80211_CMD_UPDATE_OWE_INFO,
+ .doit = nl80211_update_owe_info,
+ .flags = GENL_ADMIN_PERM,
+ .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
+ NL80211_FLAG_NEED_RTNL,
+ },
};
static struct genl_family nl80211_fam __ro_after_init = {
@@ -16318,6 +16350,46 @@ int cfg80211_external_auth_request(struct net_device *dev,
}
EXPORT_SYMBOL(cfg80211_external_auth_request);
+void cfg80211_update_owe_info_event(struct net_device *netdev,
+ struct cfg80211_update_owe_info *owe_info,
+ gfp_t gfp)
+{
+ struct wiphy *wiphy = netdev->ieee80211_ptr->wiphy;
+ struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
+ struct sk_buff *msg;
+ void *hdr;
+
+ trace_cfg80211_update_owe_info_event(wiphy, netdev, owe_info);
+
+ msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
+ if (!msg)
+ return;
+
+ hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_UPDATE_OWE_INFO);
+ if (!hdr)
+ goto nla_put_failure;
+
+ if (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, owe_info->peer))
+ goto nla_put_failure;
+
+ if (!owe_info->ie_len ||
+ nla_put(msg, NL80211_ATTR_IE, owe_info->ie_len, owe_info->ie))
+ goto nla_put_failure;
+
+ genlmsg_end(msg, hdr);
+
+ genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
+ NL80211_MCGRP_MLME, gfp);
+ return;
+
+nla_put_failure:
+ genlmsg_cancel(msg, hdr);
+ nlmsg_free(msg);
+}
+EXPORT_SYMBOL(cfg80211_update_owe_info_event);
+
/* initialisation/exit functions */
int __init nl80211_init(void)
diff --git a/net/wireless/rdev-ops.h b/net/wireless/rdev-ops.h
index 5cb48d135fab..c1e3210b09e6 100644
--- a/net/wireless/rdev-ops.h
+++ b/net/wireless/rdev-ops.h
@@ -1272,4 +1272,17 @@ rdev_abort_pmsr(struct cfg80211_registered_device *rdev,
trace_rdev_return_void(&rdev->wiphy);
}
+static inline int rdev_update_owe_info(struct cfg80211_registered_device *rdev,
+ struct net_device *dev,
+ struct cfg80211_update_owe_info *oweinfo)
+{
+ int ret = -EOPNOTSUPP;
+
+ trace_rdev_update_owe_info(&rdev->wiphy, dev, oweinfo);
+ if (rdev->ops->update_owe_info)
+ ret = rdev->ops->update_owe_info(&rdev->wiphy, dev, oweinfo);
+ 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 44b2ce1bb13a..2dda5291fc01 100644
--- a/net/wireless/trace.h
+++ b/net/wireless/trace.h
@@ -3362,6 +3362,44 @@ TRACE_EVENT(cfg80211_pmsr_complete,
WIPHY_PR_ARG, WDEV_PR_ARG,
(unsigned long long)__entry->cookie)
);
+
+TRACE_EVENT(rdev_update_owe_info,
+ TP_PROTO(struct wiphy *wiphy, struct net_device *netdev,
+ struct cfg80211_update_owe_info *owe_info),
+ TP_ARGS(wiphy, netdev, owe_info),
+ TP_STRUCT__entry(WIPHY_ENTRY
+ NETDEV_ENTRY
+ MAC_ENTRY(peer)
+ __field(u16, status)
+ __dynamic_array(u8, ie, owe_info->ie_len)),
+ TP_fast_assign(WIPHY_ASSIGN;
+ NETDEV_ASSIGN;
+ MAC_ASSIGN(peer, owe_info->peer);
+ __entry->status = owe_info->status;
+ memcpy(__get_dynamic_array(ie),
+ owe_info->ie, owe_info->ie_len);),
+ TP_printk(WIPHY_PR_FMT ", " NETDEV_PR_FMT ", peer: " MAC_PR_FMT
+ " status %d", WIPHY_PR_ARG, NETDEV_PR_ARG, MAC_PR_ARG(peer),
+ __entry->status)
+);
+
+TRACE_EVENT(cfg80211_update_owe_info_event,
+ TP_PROTO(struct wiphy *wiphy, struct net_device *netdev,
+ struct cfg80211_update_owe_info *owe_info),
+ TP_ARGS(wiphy, netdev, owe_info),
+ TP_STRUCT__entry(WIPHY_ENTRY
+ NETDEV_ENTRY
+ MAC_ENTRY(peer)
+ __dynamic_array(u8, ie, owe_info->ie_len)),
+ TP_fast_assign(WIPHY_ASSIGN;
+ NETDEV_ASSIGN;
+ MAC_ASSIGN(peer, owe_info->peer);
+ memcpy(__get_dynamic_array(ie), owe_info->ie,
+ owe_info->ie_len);),
+ TP_printk(WIPHY_PR_FMT ", " NETDEV_PR_FMT ", peer: " MAC_PR_FMT,
+ WIPHY_PR_ARG, NETDEV_PR_ARG, MAC_PR_ARG(peer))
+);
+
#endif /* !__RDEV_OPS_TRACE || TRACE_HEADER_MULTI_READ */
#undef TRACE_INCLUDE_PATH
generated by cgit (git 2.34.1) at 2024-05-29 14:00:05 +0000