diff options
| -rw-r--r-- | include/net/cfg80211.h | 43 | ||||
| -rw-r--r-- | include/uapi/linux/nl80211.h | 12 | ||||
| -rw-r--r-- | net/wireless/nl80211.c | 55 |
3 files changed, 110 insertions, 0 deletions
diff --git a/include/net/cfg80211.h b/include/net/cfg80211.h index 68def3e5b013..7d49cd0cf92d 100644 --- a/include/net/cfg80211.h +++ b/include/net/cfg80211.h @@ -3554,6 +3554,35 @@ enum wiphy_vendor_command_flags { }; /** + * enum wiphy_opmode_flag - Station's ht/vht operation mode information flags + * + * @STA_OPMODE_MAX_BW_CHANGED: Max Bandwidth changed + * @STA_OPMODE_SMPS_MODE_CHANGED: SMPS mode changed + * @STA_OPMODE_N_SS_CHANGED: max N_SS (number of spatial streams) changed + * + */ +enum wiphy_opmode_flag { + STA_OPMODE_MAX_BW_CHANGED = BIT(0), + STA_OPMODE_SMPS_MODE_CHANGED = BIT(1), + STA_OPMODE_N_SS_CHANGED = BIT(2), +}; + +/** + * struct sta_opmode_info - Station's ht/vht operation mode information + * @changed: contains value from &enum wiphy_opmode_flag + * @smps_mode: New SMPS mode of a station + * @bw: new max bandwidth value of a station + * @rx_nss: new rx_nss value of a station + */ + +struct sta_opmode_info { + u32 changed; + u8 smps_mode; + u8 bw; + u8 rx_nss; +}; + +/** * struct wiphy_vendor_command - vendor command definition * @info: vendor command identifying information, as used in nl80211 * @flags: flags, see &enum wiphy_vendor_command_flags @@ -5722,6 +5751,20 @@ void cfg80211_radar_event(struct wiphy *wiphy, struct cfg80211_chan_def *chandef, gfp_t gfp); /** + * cfg80211_sta_opmode_change_notify - STA's ht/vht operation mode change event + * @dev: network device + * @mac: MAC address of a station which opmode got modified + * @sta_opmode: station's current opmode value + * @gfp: context flags + * + * Driver should call this function when station's opmode modified via action + * frame. + */ +void cfg80211_sta_opmode_change_notify(struct net_device *dev, const u8 *mac, + struct sta_opmode_info *sta_opmode, + gfp_t gfp); + +/** * cfg80211_cac_event - Channel availability check (CAC) event * @netdev: network device * @chandef: chandef for the current channel diff --git a/include/uapi/linux/nl80211.h b/include/uapi/linux/nl80211.h index c2342456cf16..ca3d5a613fc0 100644 --- a/include/uapi/linux/nl80211.h +++ b/include/uapi/linux/nl80211.h @@ -1013,6 +1013,11 @@ * user space through the connect result as the user space would have * initiated the connection through the connect request. * + * @NL80211_CMD_STA_OPMODE_CHANGED: An event that notify station's + * ht opmode or vht opmode changes using any of &NL80211_ATTR_SMPS_MODE, + * &NL80211_ATTR_CHANNEL_WIDTH,&NL80211_ATTR_NSS attributes with its + * address(specified in &NL80211_ATTR_MAC). + * * @NL80211_CMD_MAX: highest used command number * @__NL80211_CMD_AFTER_LAST: internal use */ @@ -1221,6 +1226,8 @@ enum nl80211_commands { NL80211_CMD_EXTERNAL_AUTH, + NL80211_CMD_STA_OPMODE_CHANGED, + /* add new commands above here */ /* used to define NL80211_CMD_MAX below */ @@ -2186,6 +2193,9 @@ enum nl80211_commands { * authentication processing to user space if this capability is indicated * in NL80211_CMD_CONNECT requests from the user space. * + * @NL80211_ATTR_NSS: Station's New/updated RX_NSS value notified using this + * u8 attribute. This is used with %NL80211_CMD_STA_OPMODE_CHANGED. + * * @NUM_NL80211_ATTR: total number of nl80211_attrs available * @NL80211_ATTR_MAX: highest attribute number currently defined * @__NL80211_ATTR_AFTER_LAST: internal use @@ -2615,6 +2625,8 @@ enum nl80211_attrs { NL80211_ATTR_EXTERNAL_AUTH_ACTION, NL80211_ATTR_EXTERNAL_AUTH_SUPPORT, + NL80211_ATTR_NSS, + /* 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 bdb70fe74e3c..cc6ec5bab676 100644 --- a/net/wireless/nl80211.c +++ b/net/wireless/nl80211.c @@ -14950,6 +14950,61 @@ nl80211_radar_notify(struct cfg80211_registered_device *rdev, nlmsg_free(msg); } +void cfg80211_sta_opmode_change_notify(struct net_device *dev, const u8 *mac, + struct sta_opmode_info *sta_opmode, + gfp_t gfp) +{ + struct sk_buff *msg; + struct wireless_dev *wdev = dev->ieee80211_ptr; + struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy); + void *hdr; + + if (WARN_ON(!mac)) + return; + + msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp); + if (!msg) + return; + + hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_STA_OPMODE_CHANGED); + if (!hdr) { + nlmsg_free(msg); + return; + } + + if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx)) + goto nla_put_failure; + + if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex)) + goto nla_put_failure; + + if (nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, mac)) + goto nla_put_failure; + + if ((sta_opmode->changed & STA_OPMODE_SMPS_MODE_CHANGED) && + nla_put_u8(msg, NL80211_ATTR_SMPS_MODE, sta_opmode->smps_mode)) + goto nla_put_failure; + + if ((sta_opmode->changed & STA_OPMODE_MAX_BW_CHANGED) && + nla_put_u8(msg, NL80211_ATTR_CHANNEL_WIDTH, sta_opmode->bw)) + goto nla_put_failure; + + if ((sta_opmode->changed & STA_OPMODE_N_SS_CHANGED) && + nla_put_u8(msg, NL80211_ATTR_NSS, sta_opmode->rx_nss)) + 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: + nlmsg_free(msg); +} +EXPORT_SYMBOL(cfg80211_sta_opmode_change_notify); + void cfg80211_probe_status(struct net_device *dev, const u8 *addr, u64 cookie, bool acked, gfp_t gfp) { |