diff options
| -rw-r--r-- | include/net/cfg80211.h | 41 | ||||
| -rw-r--r-- | include/uapi/linux/nl80211.h | 19 | ||||
| -rw-r--r-- | net/wireless/nl80211.c | 76 | ||||
| -rw-r--r-- | net/wireless/rdev-ops.h | 13 | ||||
| -rw-r--r-- | net/wireless/trace.h | 46 |
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 |