diff options
Diffstat (limited to 'net/wireless/nl80211.c')
-rw-r--r-- | net/wireless/nl80211.c | 962 |
1 files changed, 742 insertions, 220 deletions
diff --git a/net/wireless/nl80211.c b/net/wireless/nl80211.c index 5839c85075f1..a17d6bc6b22c 100644 --- a/net/wireless/nl80211.c +++ b/net/wireless/nl80211.c @@ -209,7 +209,7 @@ cfg80211_get_dev_from_info(struct net *netns, struct genl_info *info) } /* policy for the attributes */ -static const struct nla_policy nl80211_policy[NL80211_ATTR_MAX+1] = { +static const struct nla_policy nl80211_policy[NUM_NL80211_ATTR] = { [NL80211_ATTR_WIPHY] = { .type = NLA_U32 }, [NL80211_ATTR_WIPHY_NAME] = { .type = NLA_NUL_STRING, .len = 20-1 }, @@ -388,13 +388,14 @@ static const struct nla_policy nl80211_policy[NL80211_ATTR_MAX+1] = { [NL80211_ATTR_MAC_HINT] = { .len = ETH_ALEN }, [NL80211_ATTR_WIPHY_FREQ_HINT] = { .type = NLA_U32 }, [NL80211_ATTR_TDLS_PEER_CAPABILITY] = { .type = NLA_U32 }, - [NL80211_ATTR_IFACE_SOCKET_OWNER] = { .type = NLA_FLAG }, + [NL80211_ATTR_SOCKET_OWNER] = { .type = NLA_FLAG }, [NL80211_ATTR_CSA_C_OFFSETS_TX] = { .type = NLA_BINARY }, [NL80211_ATTR_USE_RRM] = { .type = NLA_FLAG }, [NL80211_ATTR_TSID] = { .type = NLA_U8 }, [NL80211_ATTR_USER_PRIO] = { .type = NLA_U8 }, [NL80211_ATTR_ADMITTED_TIME] = { .type = NLA_U16 }, [NL80211_ATTR_SMPS_MODE] = { .type = NLA_U8 }, + [NL80211_ATTR_MAC_MASK] = { .len = ETH_ALEN }, }; /* policy for the key attributes */ @@ -428,6 +429,7 @@ nl80211_wowlan_policy[NUM_NL80211_WOWLAN_TRIG] = { [NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE] = { .type = NLA_FLAG }, [NL80211_WOWLAN_TRIG_RFKILL_RELEASE] = { .type = NLA_FLAG }, [NL80211_WOWLAN_TRIG_TCP_CONNECTION] = { .type = NLA_NESTED }, + [NL80211_WOWLAN_TRIG_NET_DETECT] = { .type = NLA_NESTED }, }; static const struct nla_policy @@ -884,7 +886,12 @@ static int nl80211_key_allowed(struct wireless_dev *wdev) if (!wdev->current_bss) return -ENOLINK; break; - default: + case NL80211_IFTYPE_UNSPECIFIED: + case NL80211_IFTYPE_OCB: + case NL80211_IFTYPE_MONITOR: + case NL80211_IFTYPE_P2P_DEVICE: + case NL80211_IFTYPE_WDS: + case NUM_NL80211_IFTYPES: return -EINVAL; } @@ -1083,6 +1090,8 @@ static int nl80211_send_wowlan(struct sk_buff *msg, if (large && nl80211_send_wowlan_tcp_caps(rdev, msg)) return -ENOBUFS; + /* TODO: send wowlan net detect */ + nla_nest_end(msg, nl_wowlan); return 0; @@ -1514,8 +1523,8 @@ static int nl80211_send_wiphy(struct cfg80211_registered_device *rdev, if (rdev->wiphy.flags & WIPHY_FLAG_HAS_CHANNEL_SWITCH) CMD(channel_switch, CHANNEL_SWITCH); CMD(set_qos_map, SET_QOS_MAP); - if (rdev->wiphy.flags & - WIPHY_FLAG_SUPPORTS_WMM_ADMISSION) + if (rdev->wiphy.features & + NL80211_FEATURE_SUPPORTS_WMM_ADMISSION) CMD(add_tx_ts, ADD_TX_TS); } /* add into the if now */ @@ -2308,7 +2317,8 @@ static inline u64 wdev_id(struct wireless_dev *wdev) static int nl80211_send_chandef(struct sk_buff *msg, const struct cfg80211_chan_def *chandef) { - WARN_ON(!cfg80211_chandef_valid(chandef)); + if (WARN_ON(!cfg80211_chandef_valid(chandef))) + return -EINVAL; if (nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ, chandef->chan->center_freq)) @@ -2336,12 +2346,16 @@ static int nl80211_send_chandef(struct sk_buff *msg, static int nl80211_send_iface(struct sk_buff *msg, u32 portid, u32 seq, int flags, struct cfg80211_registered_device *rdev, - struct wireless_dev *wdev) + struct wireless_dev *wdev, bool removal) { struct net_device *dev = wdev->netdev; + u8 cmd = NL80211_CMD_NEW_INTERFACE; void *hdr; - hdr = nl80211hdr_put(msg, portid, seq, flags, NL80211_CMD_NEW_INTERFACE); + if (removal) + cmd = NL80211_CMD_DEL_INTERFACE; + + hdr = nl80211hdr_put(msg, portid, seq, flags, cmd); if (!hdr) return -1; @@ -2408,7 +2422,7 @@ static int nl80211_dump_interface(struct sk_buff *skb, struct netlink_callback * } if (nl80211_send_iface(skb, NETLINK_CB(cb->skb).portid, cb->nlh->nlmsg_seq, NLM_F_MULTI, - rdev, wdev) < 0) { + rdev, wdev, false) < 0) { goto out; } if_idx++; @@ -2436,7 +2450,7 @@ static int nl80211_get_interface(struct sk_buff *skb, struct genl_info *info) return -ENOMEM; if (nl80211_send_iface(msg, info->snd_portid, info->snd_seq, 0, - rdev, wdev) < 0) { + rdev, wdev, false) < 0) { nlmsg_free(msg); return -ENOBUFS; } @@ -2582,7 +2596,7 @@ static int nl80211_new_interface(struct sk_buff *skb, struct genl_info *info) struct cfg80211_registered_device *rdev = info->user_ptr[0]; struct vif_params params; struct wireless_dev *wdev; - struct sk_buff *msg; + struct sk_buff *msg, *event; int err; enum nl80211_iftype type = NL80211_IFTYPE_UNSPECIFIED; u32 flags; @@ -2605,7 +2619,9 @@ static int nl80211_new_interface(struct sk_buff *skb, struct genl_info *info) !(rdev->wiphy.interface_modes & (1 << type))) return -EOPNOTSUPP; - if (type == NL80211_IFTYPE_P2P_DEVICE && info->attrs[NL80211_ATTR_MAC]) { + if ((type == NL80211_IFTYPE_P2P_DEVICE || + rdev->wiphy.features & NL80211_FEATURE_MAC_ON_CREATE) && + info->attrs[NL80211_ATTR_MAC]) { nla_memcpy(params.macaddr, info->attrs[NL80211_ATTR_MAC], ETH_ALEN); if (!is_valid_ether_addr(params.macaddr)) @@ -2634,12 +2650,15 @@ static int nl80211_new_interface(struct sk_buff *skb, struct genl_info *info) wdev = rdev_add_virtual_intf(rdev, nla_data(info->attrs[NL80211_ATTR_IFNAME]), type, err ? NULL : &flags, ¶ms); - if (IS_ERR(wdev)) { + if (WARN_ON(!wdev)) { + nlmsg_free(msg); + return -EPROTO; + } else if (IS_ERR(wdev)) { nlmsg_free(msg); return PTR_ERR(wdev); } - if (info->attrs[NL80211_ATTR_IFACE_SOCKET_OWNER]) + if (info->attrs[NL80211_ATTR_SOCKET_OWNER]) wdev->owner_nlportid = info->snd_portid; switch (type) { @@ -2675,11 +2694,25 @@ static int nl80211_new_interface(struct sk_buff *skb, struct genl_info *info) } if (nl80211_send_iface(msg, info->snd_portid, info->snd_seq, 0, - rdev, wdev) < 0) { + rdev, wdev, false) < 0) { nlmsg_free(msg); return -ENOBUFS; } + event = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); + if (event) { + if (nl80211_send_iface(event, 0, 0, 0, + rdev, wdev, false) < 0) { + nlmsg_free(event); + goto out; + } + + genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), + event, 0, NL80211_MCGRP_CONFIG, + GFP_KERNEL); + } + +out: return genlmsg_reply(msg, info); } @@ -2687,10 +2720,18 @@ static int nl80211_del_interface(struct sk_buff *skb, struct genl_info *info) { struct cfg80211_registered_device *rdev = info->user_ptr[0]; struct wireless_dev *wdev = info->user_ptr[1]; + struct sk_buff *msg; + int status; if (!rdev->ops->del_virtual_intf) return -EOPNOTSUPP; + msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); + if (msg && nl80211_send_iface(msg, 0, 0, 0, rdev, wdev, true) < 0) { + nlmsg_free(msg); + msg = NULL; + } + /* * If we remove a wireless device without a netdev then clear * user_ptr[1] so that nl80211_post_doit won't dereference it @@ -2701,7 +2742,15 @@ static int nl80211_del_interface(struct sk_buff *skb, struct genl_info *info) if (!wdev->netdev) info->user_ptr[1] = NULL; - return rdev_del_virtual_intf(rdev, wdev); + status = rdev_del_virtual_intf(rdev, wdev); + if (status >= 0 && msg) + genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), + msg, 0, NL80211_MCGRP_CONFIG, + GFP_KERNEL); + else + nlmsg_free(msg); + + return status; } static int nl80211_set_noack_map(struct sk_buff *skb, struct genl_info *info) @@ -4398,10 +4447,12 @@ static int nl80211_del_station(struct sk_buff *skb, struct genl_info *info) { struct cfg80211_registered_device *rdev = info->user_ptr[0]; struct net_device *dev = info->user_ptr[1]; - u8 *mac_addr = NULL; + struct station_del_parameters params; + + memset(¶ms, 0, sizeof(params)); if (info->attrs[NL80211_ATTR_MAC]) - mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]); + params.mac = nla_data(info->attrs[NL80211_ATTR_MAC]); if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP && dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP_VLAN && @@ -4412,7 +4463,28 @@ static int nl80211_del_station(struct sk_buff *skb, struct genl_info *info) if (!rdev->ops->del_station) return -EOPNOTSUPP; - return rdev_del_station(rdev, dev, mac_addr); + if (info->attrs[NL80211_ATTR_MGMT_SUBTYPE]) { + params.subtype = + nla_get_u8(info->attrs[NL80211_ATTR_MGMT_SUBTYPE]); + if (params.subtype != IEEE80211_STYPE_DISASSOC >> 4 && + params.subtype != IEEE80211_STYPE_DEAUTH >> 4) + return -EINVAL; + } else { + /* Default to Deauthentication frame */ + params.subtype = IEEE80211_STYPE_DEAUTH >> 4; + } + + if (info->attrs[NL80211_ATTR_REASON_CODE]) { + params.reason_code = + nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]); + if (params.reason_code == 0) + return -EINVAL; /* 0 is reserved */ + } else { + /* Default to reason code 2 */ + params.reason_code = WLAN_REASON_PREV_AUTH_NOT_VALID; + } + + return rdev_del_station(rdev, dev, ¶ms); } static int nl80211_send_mpath(struct sk_buff *msg, u32 portid, u32 seq, @@ -4423,7 +4495,7 @@ static int nl80211_send_mpath(struct sk_buff *msg, u32 portid, u32 seq, void *hdr; struct nlattr *pinfoattr; - hdr = nl80211hdr_put(msg, portid, seq, flags, NL80211_CMD_NEW_STATION); + hdr = nl80211hdr_put(msg, portid, seq, flags, NL80211_CMD_NEW_MPATH); if (!hdr) return -1; @@ -4624,6 +4696,96 @@ static int nl80211_del_mpath(struct sk_buff *skb, struct genl_info *info) return rdev_del_mpath(rdev, dev, dst); } +static int nl80211_get_mpp(struct sk_buff *skb, struct genl_info *info) +{ + struct cfg80211_registered_device *rdev = info->user_ptr[0]; + int err; + struct net_device *dev = info->user_ptr[1]; + struct mpath_info pinfo; + struct sk_buff *msg; + u8 *dst = NULL; + u8 mpp[ETH_ALEN]; + + memset(&pinfo, 0, sizeof(pinfo)); + + if (!info->attrs[NL80211_ATTR_MAC]) + return -EINVAL; + + dst = nla_data(info->attrs[NL80211_ATTR_MAC]); + + if (!rdev->ops->get_mpp) + return -EOPNOTSUPP; + + if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT) + return -EOPNOTSUPP; + + err = rdev_get_mpp(rdev, dev, dst, mpp, &pinfo); + if (err) + return err; + + msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); + if (!msg) + return -ENOMEM; + + if (nl80211_send_mpath(msg, info->snd_portid, info->snd_seq, 0, + dev, dst, mpp, &pinfo) < 0) { + nlmsg_free(msg); + return -ENOBUFS; + } + + return genlmsg_reply(msg, info); +} + +static int nl80211_dump_mpp(struct sk_buff *skb, + struct netlink_callback *cb) +{ + struct mpath_info pinfo; + struct cfg80211_registered_device *rdev; + struct wireless_dev *wdev; + u8 dst[ETH_ALEN]; + u8 mpp[ETH_ALEN]; + int path_idx = cb->args[2]; + int err; + + err = nl80211_prepare_wdev_dump(skb, cb, &rdev, &wdev); + if (err) + return err; + + if (!rdev->ops->dump_mpp) { + err = -EOPNOTSUPP; + goto out_err; + } + + if (wdev->iftype != NL80211_IFTYPE_MESH_POINT) { + err = -EOPNOTSUPP; + goto out_err; + } + + while (1) { + err = rdev_dump_mpp(rdev, wdev->netdev, path_idx, dst, + mpp, &pinfo); + if (err == -ENOENT) + break; + if (err) + goto out_err; + + if (nl80211_send_mpath(skb, NETLINK_CB(cb->skb).portid, + cb->nlh->nlmsg_seq, NLM_F_MULTI, + wdev->netdev, dst, mpp, + &pinfo) < 0) + goto out; + + path_idx++; + } + + out: + cb->args[2] = path_idx; + err = skb->len; + out_err: + nl80211_finish_wdev_dump(rdev); + return err; +} + static int nl80211_set_bss(struct sk_buff *skb, struct genl_info *info) { struct cfg80211_registered_device *rdev = info->user_ptr[0]; @@ -5260,11 +5422,11 @@ static int nl80211_set_reg(struct sk_buff *skb, struct genl_info *info) { struct nlattr *tb[NL80211_REG_RULE_ATTR_MAX + 1]; struct nlattr *nl_reg_rule; - char *alpha2 = NULL; - int rem_reg_rules = 0, r = 0; + char *alpha2; + int rem_reg_rules, r; u32 num_rules = 0, rule_idx = 0, size_of_regd; enum nl80211_dfs_regions dfs_region = NL80211_DFS_UNSET; - struct ieee80211_regdomain *rd = NULL; + struct ieee80211_regdomain *rd; if (!info->attrs[NL80211_ATTR_REG_ALPHA2]) return -EINVAL; @@ -5358,6 +5520,43 @@ static int validate_scan_freqs(struct nlattr *freqs) return n_channels; } +static int nl80211_parse_random_mac(struct nlattr **attrs, + u8 *mac_addr, u8 *mac_addr_mask) +{ + int i; + + if (!attrs[NL80211_ATTR_MAC] && !attrs[NL80211_ATTR_MAC_MASK]) { + memset(mac_addr, 0, ETH_ALEN); + memset(mac_addr_mask, 0, ETH_ALEN); + mac_addr[0] = 0x2; + mac_addr_mask[0] = 0x3; + + return 0; + } + + /* need both or none */ + if (!attrs[NL80211_ATTR_MAC] || !attrs[NL80211_ATTR_MAC_MASK]) + return -EINVAL; + + memcpy(mac_addr, nla_data(attrs[NL80211_ATTR_MAC]), ETH_ALEN); + memcpy(mac_addr_mask, nla_data(attrs[NL80211_ATTR_MAC_MASK]), ETH_ALEN); + + /* don't allow or configure an mcast address */ + if (!is_multicast_ether_addr(mac_addr_mask) || + is_multicast_ether_addr(mac_addr)) + return -EINVAL; + + /* + * allow users to pass a MAC address that has bits set outside + * of the mask, but don't bother drivers with having to deal + * with such bits + */ + for (i = 0; i < ETH_ALEN; i++) + mac_addr[i] &= mac_addr_mask[i]; + + return 0; +} + static int nl80211_trigger_scan(struct sk_buff *skb, struct genl_info *info) { struct cfg80211_registered_device *rdev = info->user_ptr[0]; @@ -5535,6 +5734,25 @@ static int nl80211_trigger_scan(struct sk_buff *skb, struct genl_info *info) err = -EOPNOTSUPP; goto out_free; } + + if (request->flags & NL80211_SCAN_FLAG_RANDOM_ADDR) { + if (!(wiphy->features & + NL80211_FEATURE_SCAN_RANDOM_MAC_ADDR)) { + err = -EOPNOTSUPP; + goto out_free; + } + + if (wdev->current_bss) { + err = -EOPNOTSUPP; + goto out_free; + } + + err = nl80211_parse_random_mac(info->attrs, + request->mac_addr, + request->mac_addr_mask); + if (err) + goto out_free; + } } request->no_cck = @@ -5561,14 +5779,12 @@ static int nl80211_trigger_scan(struct sk_buff *skb, struct genl_info *info) return err; } -static int nl80211_start_sched_scan(struct sk_buff *skb, - struct genl_info *info) +static struct cfg80211_sched_scan_request * +nl80211_parse_sched_scan(struct wiphy *wiphy, struct wireless_dev *wdev, + struct nlattr **attrs) { struct cfg80211_sched_scan_request *request; - struct cfg80211_registered_device *rdev = info->user_ptr[0]; - struct net_device *dev = info->user_ptr[1]; struct nlattr *attr; - struct wiphy *wiphy; int err, tmp, n_ssids = 0, n_match_sets = 0, n_channels, i; u32 interval; enum ieee80211_band band; @@ -5576,38 +5792,32 @@ static int nl80211_start_sched_scan(struct sk_buff *skb, struct nlattr *tb[NL80211_SCHED_SCAN_MATCH_ATTR_MAX + 1]; s32 default_match_rssi = NL80211_SCAN_RSSI_THOLD_OFF; - if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_SCHED_SCAN) || - !rdev->ops->sched_scan_start) - return -EOPNOTSUPP; - - if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE])) - return -EINVAL; + if (!is_valid_ie_attr(attrs[NL80211_ATTR_IE])) + return ERR_PTR(-EINVAL); - if (!info->attrs[NL80211_ATTR_SCHED_SCAN_INTERVAL]) - return -EINVAL; + if (!attrs[NL80211_ATTR_SCHED_SCAN_INTERVAL]) + return ERR_PTR(-EINVAL); - interval = nla_get_u32(info->attrs[NL80211_ATTR_SCHED_SCAN_INTERVAL]); + interval = nla_get_u32(attrs[NL80211_ATTR_SCHED_SCAN_INTERVAL]); if (interval == 0) - return -EINVAL; - - wiphy = &rdev->wiphy; + return ERR_PTR(-EINVAL); - if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) { + if (attrs[NL80211_ATTR_SCAN_FREQUENCIES]) { n_channels = validate_scan_freqs( - info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]); + attrs[NL80211_ATTR_SCAN_FREQUENCIES]); if (!n_channels) - return -EINVAL; + return ERR_PTR(-EINVAL); } else { n_channels = ieee80211_get_num_supported_channels(wiphy); } - if (info->attrs[NL80211_ATTR_SCAN_SSIDS]) - nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS], + if (attrs[NL80211_ATTR_SCAN_SSIDS]) + nla_for_each_nested(attr, attrs[NL80211_ATTR_SCAN_SSIDS], tmp) n_ssids++; if (n_ssids > wiphy->max_sched_scan_ssids) - return -EINVAL; + return ERR_PTR(-EINVAL); /* * First, count the number of 'real' matchsets. Due to an issue with @@ -5618,9 +5828,9 @@ static int nl80211_start_sched_scan(struct sk_buff *skb, * older userspace that treated a matchset with only the RSSI as the * global RSSI for all other matchsets - if there are other matchsets. */ - if (info->attrs[NL80211_ATTR_SCHED_SCAN_MATCH]) { + if (attrs[NL80211_ATTR_SCHED_SCAN_MATCH]) { nla_for_each_nested(attr, - info->attrs[NL80211_ATTR_SCHED_SCAN_MATCH], + attrs[NL80211_ATTR_SCHED_SCAN_MATCH], tmp) { struct nlattr *rssi; @@ -5628,7 +5838,7 @@ static int nl80211_start_sched_scan(struct sk_buff *skb, nla_data(attr), nla_len(attr), nl80211_match_policy); if (err) - return err; + return ERR_PTR(err); /* add other standalone attributes here */ if (tb[NL80211_SCHED_SCAN_MATCH_ATTR_SSID]) { n_match_sets++; @@ -5645,30 +5855,23 @@ static int nl80211_start_sched_scan(struct sk_buff *skb, n_match_sets = 1; if (n_match_sets > wiphy->max_match_sets) - return -EINVAL; + return ERR_PTR(-EINVAL); - if (info->attrs[NL80211_ATTR_IE]) - ie_len = nla_len(info->attrs[NL80211_ATTR_IE]); + if (attrs[NL80211_ATTR_IE]) + ie_len = nla_len(attrs[NL80211_ATTR_IE]); else ie_len = 0; if (ie_len > wiphy->max_sched_scan_ie_len) - return -EINVAL; - - if (rdev->sched_scan_req) { - err = -EINPROGRESS; - goto out; - } + return ERR_PTR(-EINVAL); request = kzalloc(sizeof(*request) + sizeof(*request->ssids) * n_ssids + sizeof(*request->match_sets) * n_match_sets + sizeof(*request->channels) * n_channels + ie_len, GFP_KERNEL); - if (!request) { - err = -ENOMEM; - goto out; - } + if (!request) + return ERR_PTR(-ENOMEM); if (n_ssids) request->ssids = (void *)&request->channels[n_channels]; @@ -5693,10 +5896,10 @@ static int nl80211_start_sched_scan(struct sk_buff *skb, request->n_match_sets = n_match_sets; i = 0; - if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) { + if (attrs[NL80211_ATTR_SCAN_FREQUENCIES]) { /* user specified, bail out if channel not found */ nla_for_each_nested(attr, - info->attrs[NL80211_ATTR_SCAN_FREQUENCIES], + attrs[NL80211_ATTR_SCAN_FREQUENCIES], tmp) { struct ieee80211_channel *chan; @@ -5742,8 +5945,8 @@ static int nl80211_start_sched_scan(struct sk_buff *skb, request->n_channels = i; i = 0; - if (info->attrs[NL80211_ATTR_SCAN_SSIDS]) { - nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS], + if (attrs[NL80211_ATTR_SCAN_SSIDS]) { + nla_for_each_nested(attr, attrs[NL80211_ATTR_SCAN_SSIDS], tmp) { if (nla_len(attr) > IEEE80211_MAX_SSID_LEN) { err = -EINVAL; @@ -5757,9 +5960,9 @@ static int nl80211_start_sched_scan(struct sk_buff *skb, } i = 0; - if (info->attrs[NL80211_ATTR_SCHED_SCAN_MATCH]) { + if (attrs[NL80211_ATTR_SCHED_SCAN_MATCH]) { nla_for_each_nested(attr, - info->attrs[NL80211_ATTR_SCHED_SCAN_MATCH], + attrs[NL80211_ATTR_SCHED_SCAN_MATCH], tmp) { struct nlattr *ssid, *rssi; @@ -5814,36 +6017,88 @@ static int nl80211_start_sched_scan(struct sk_buff *skb, if (ie_len) { request->ie_len = ie_len; memcpy((void *)request->ie, - nla_data(info->attrs[NL80211_ATTR_IE]), + nla_data(attrs[NL80211_ATTR_IE]), request->ie_len); } - if (info->attrs[NL80211_ATTR_SCAN_FLAGS]) { + if (attrs[NL80211_ATTR_SCAN_FLAGS]) { request->flags = nla_get_u32( - info->attrs[NL80211_ATTR_SCAN_FLAGS]); + attrs[NL80211_ATTR_SCAN_FLAGS]); if ((request->flags & NL80211_SCAN_FLAG_LOW_PRIORITY) && !(wiphy->features & NL80211_FEATURE_LOW_PRIORITY_SCAN)) { err = -EOPNOTSUPP; goto out_free; } + + if (request->flags & NL80211_SCAN_FLAG_RANDOM_ADDR) { + u32 flg = NL80211_FEATURE_SCHED_SCAN_RANDOM_MAC_ADDR; + + if (!wdev) /* must be net-detect */ + flg = NL80211_FEATURE_ND_RANDOM_MAC_ADDR; + + if (!(wiphy->features & flg)) { + err = -EOPNOTSUPP; + goto out_free; + } + + if (wdev && wdev->current_bss) { + err = -EOPNOTSUPP; + goto out_free; + } + + err = nl80211_parse_random_mac(attrs, request->mac_addr, + request->mac_addr_mask); + if (err) + goto out_free; + } } - request->dev = dev; - request->wiphy = &rdev->wiphy; request->interval = interval; request->scan_start = jiffies; - err = rdev_sched_scan_start(rdev, dev, request); - if (!err) { - rdev->sched_scan_req = request; - nl80211_send_sched_scan(rdev, dev, - NL80211_CMD_START_SCHED_SCAN); - goto out; - } + return request; out_free: kfree(request); -out: + return ERR_PTR(err); +} + +static int nl80211_start_sched_scan(struct sk_buff *skb, + struct genl_info *info) +{ + struct cfg80211_registered_device *rdev = info->user_ptr[0]; + struct net_device *dev = info->user_ptr[1]; + struct wireless_dev *wdev = dev->ieee80211_ptr; + int err; + + if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_SCHED_SCAN) || + !rdev->ops->sched_scan_start) + return -EOPNOTSUPP; + + if (rdev->sched_scan_req) + return -EINPROGRESS; + + rdev->sched_scan_req = nl80211_parse_sched_scan(&rdev->wiphy, wdev, + info->attrs); + err = PTR_ERR_OR_ZERO(rdev->sched_scan_req); + if (err) + goto out_err; + + err = rdev_sched_scan_start(rdev, dev, rdev->sched_scan_req); + if (err) + goto out_free; + + rdev->sched_scan_req->dev = dev; + rdev->sched_scan_req->wiphy = &rdev->wiphy; + + nl80211_send_sched_scan(rdev, dev, + NL80211_CMD_START_SCHED_SCAN); + return 0; + +out_free: + kfree(rdev->sched_scan_req); +out_err: + rdev->sched_scan_req = NULL; return err; } @@ -5923,7 +6178,6 @@ static int nl80211_channel_switch(struct sk_buff *skb, struct genl_info *info) * function is called under RTNL lock, so this should not be a problem. */ static struct nlattr *csa_attrs[NL80211_ATTR_MAX+1]; - u8 radar_detect_width = 0; int err; bool need_new_beacon = false; int len, i; @@ -6059,10 +6313,8 @@ skip_beacons: if (err < 0) return err; - if (err > 0) { - radar_detect_width = BIT(params.chandef.width); + if (err > 0) params.radar_required = true; - } if (info->attrs[NL80211_ATTR_CH_SWITCH_BLOCK_TX]) params.block_tx = true; @@ -6311,8 +6563,6 @@ static int nl80211_dump_survey(struct sk_buff *skb, } while (1) { - struct ieee80211_channel *chan; - res = rdev_dump_survey(rdev, wdev->netdev, survey_idx, &survey); if (res == -ENOENT) break; @@ -6325,9 +6575,7 @@ static int nl80211_dump_survey(struct sk_buff *skb, goto out; } - chan = ieee80211_get_channel(&rdev->wiphy, - survey.channel->center_freq); - if (!chan || chan->flags & IEEE80211_CHAN_DISABLED) { + if (survey.channel->flags & IEEE80211_CHAN_DISABLED) { survey_idx++; continue; } @@ -8159,6 +8407,28 @@ static int nl80211_set_cqm(struct sk_buff *skb, struct genl_info *info) return -EINVAL; } +static int nl80211_join_ocb(struct sk_buff *skb, struct genl_info *info) +{ + struct cfg80211_registered_device *rdev = info->user_ptr[0]; + struct net_device *dev = info->user_ptr[1]; + struct ocb_setup setup = {}; + int err; + + err = nl80211_parse_chandef(rdev, info, &setup.chandef); + if (err) + return err; + + return cfg80211_join_ocb(rdev, dev, &setup); +} + +static int nl80211_leave_ocb(struct sk_buff *skb, struct genl_info *info) +{ + struct cfg80211_registered_device *rdev = info->user_ptr[0]; + struct net_device *dev = info->user_ptr[1]; + + return cfg80211_leave_ocb(rdev, dev); +} + static int nl80211_join_mesh(struct sk_buff *skb, struct genl_info *info) { struct cfg80211_registered_device *rdev = info->user_ptr[0]; @@ -8542,6 +8812,39 @@ static int nl80211_parse_wowlan_tcp(struct cfg80211_registered_device *rdev, return 0; } +static int nl80211_parse_wowlan_nd(struct cfg80211_registered_device *rdev, + const struct wiphy_wowlan_support *wowlan, + struct nlattr *attr, + struct cfg80211_wowlan *trig) +{ + struct nlattr **tb; + int err; + + tb = kzalloc(NUM_NL80211_ATTR * sizeof(*tb), GFP_KERNEL); + if (!tb) + return -ENOMEM; + + if (!(wowlan->flags & WIPHY_WOWLAN_NET_DETECT)) { + err = -EOPNOTSUPP; + goto out; + } + + err = nla_parse(tb, NL80211_ATTR_MAX, + nla_data(attr), nla_len(attr), + nl80211_policy); + if (err) + goto out; + + trig->nd_config = nl80211_parse_sched_scan(&rdev->wiphy, NULL, tb); + err = PTR_ERR_OR_ZERO(trig->nd_config); + if (err) + trig->nd_config = NULL; + +out: + kfree(tb); + return err; +} + static int nl80211_set_wowlan(struct sk_buff *skb, struct genl_info *info) { struct cfg80211_registered_device *rdev = info->user_ptr[0]; @@ -8687,6 +8990,14 @@ static int nl80211_set_wowlan(struct sk_buff *skb, struct genl_info *info) goto error; } + if (tb[NL80211_WOWLAN_TRIG_NET_DETECT]) { + err = nl80211_parse_wowlan_nd( + rdev, wowlan, tb[NL80211_WOWLAN_TRIG_NET_DETECT], + &new_triggers); + if (err) + goto error; + } + ntrig = kmemdup(&new_triggers, sizeof(new_triggers), GFP_KERNEL); if (!ntrig) { err = -ENOMEM; @@ -9444,7 +9755,7 @@ static int nl80211_add_tx_ts(struct sk_buff *skb, struct genl_info *info) u16 admitted_time = 0; int err; - if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_WMM_ADMISSION)) + if (!(rdev->wiphy.features & NL80211_FEATURE_SUPPORTS_WMM_ADMISSION)) return -EOPNOTSUPP; if (!info->attrs[NL80211_ATTR_TSID] || !info->attrs[NL80211_ATTR_MAC] || @@ -9460,12 +9771,10 @@ static int nl80211_add_tx_ts(struct sk_buff *skb, struct genl_info *info) return -EINVAL; /* WMM uses TIDs 0-7 even for TSPEC */ - if (tsid < IEEE80211_FIRST_TSPEC_TSID) { - if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_WMM_ADMISSION)) - return -EINVAL; - } else { + if (tsid >= IEEE80211_FIRST_TSPEC_TSID) { /* TODO: handle 802.11 TSPEC/admission control - * need more attributes for that (e.g. BA session requirement) + * need more attributes for that (e.g. BA session requirement); + * change the WMM adminssion test above to allow both then */ return -EINVAL; } @@ -9521,6 +9830,98 @@ static int nl80211_del_tx_ts(struct sk_buff *skb, struct genl_info *info) return err; } +static int nl80211_tdls_channel_switch(struct sk_buff *skb, + struct genl_info *info) +{ + struct cfg80211_registered_device *rdev = info->user_ptr[0]; + struct net_device *dev = info->user_ptr[1]; + struct wireless_dev *wdev = dev->ieee80211_ptr; + struct cfg80211_chan_def chandef = {}; + const u8 *addr; + u8 oper_class; + int err; + + if (!rdev->ops->tdls_channel_switch || + !(rdev->wiphy.features & NL80211_FEATURE_TDLS_CHANNEL_SWITCH)) + return -EOPNOTSUPP; + + switch (dev->ieee80211_ptr->iftype) { + case NL80211_IFTYPE_STATION: + case NL80211_IFTYPE_P2P_CLIENT: + break; + default: + return -EOPNOTSUPP; + } + + if (!info->attrs[NL80211_ATTR_MAC] || + !info->attrs[NL80211_ATTR_OPER_CLASS]) + return -EINVAL; + + err = nl80211_parse_chandef(rdev, info, &chandef); + if (err) + return err; + + /* + * Don't allow wide channels on the 2.4Ghz band, as per IEEE802.11-2012 + * section 10.22.6.2.1. Disallow 5/10Mhz channels as well for now, the + * specification is not defined for them. + */ + if (chandef.chan->band == IEEE80211_BAND_2GHZ && + chandef.width != NL80211_CHAN_WIDTH_20_NOHT && + chandef.width != NL80211_CHAN_WIDTH_20) + return -EINVAL; + + /* we will be active on the TDLS link */ + if (!cfg80211_reg_can_beacon(&rdev->wiphy, &chandef, wdev->iftype)) + return -EINVAL; + + /* don't allow switching to DFS channels */ + if (cfg80211_chandef_dfs_required(wdev->wiphy, &chandef, wdev->iftype)) + return -EINVAL; + + addr = nla_data(info->attrs[NL80211_ATTR_MAC]); + oper_class = nla_get_u8(info->attrs[NL80211_ATTR_OPER_CLASS]); + + wdev_lock(wdev); + err = rdev_tdls_channel_switch(rdev, dev, addr, oper_class, &chandef); + wdev_unlock(wdev); + + return err; +} + +static int nl80211_tdls_cancel_channel_switch(struct sk_buff *skb, + struct genl_info *info) +{ + struct cfg80211_registered_device *rdev = info->user_ptr[0]; + struct net_device *dev = info->user_ptr[1]; + struct wireless_dev *wdev = dev->ieee80211_ptr; + const u8 *addr; + + if (!rdev->ops->tdls_channel_switch || + !rdev->ops->tdls_cancel_channel_switch || + !(rdev->wiphy.features & NL80211_FEATURE_TDLS_CHANNEL_SWITCH)) + return -EOPNOTSUPP; + + switch (dev->ieee80211_ptr->iftype) { + case NL80211_IFTYPE_STATION: + case NL80211_IFTYPE_P2P_CLIENT: + break; + default: + return -EOPNOTSUPP; + } + + if (!info->attrs[NL80211_ATTR_MAC]) + return -EINVAL; + + addr = nla_data(info->attrs[NL80211_ATTR_MAC]); + + wdev_lock(wdev); + rdev_tdls_cancel_channel_switch(rdev, dev, addr); + wdev_unlock(wdev); + + return 0; +} + #define NL80211_FLAG_NEED_WIPHY 0x01 #define NL80211_FLAG_NEED_NETDEV 0x02 #define NL80211_FLAG_NEED_RTNL 0x04 @@ -9782,6 +10183,15 @@ static const struct genl_ops nl80211_ops[] = { NL80211_FLAG_NEED_RTNL, }, { + .cmd = NL80211_CMD_GET_MPP, + .doit = nl80211_get_mpp, + .dumpit = nl80211_dump_mpp, + .policy = nl80211_policy, + .flags = GENL_ADMIN_PERM, + .internal_flags = NL80211_FLAG_NEED_NETDEV_UP | + NL80211_FLAG_NEED_RTNL, + }, + { .cmd = NL80211_CMD_SET_MPATH, .doit = nl80211_set_mpath, .policy = nl80211_policy, @@ -10095,6 +10505,22 @@ static const struct genl_ops nl80211_ops[] = { .internal_flags = NL80211_FLAG_NEED_NETDEV_UP | NL80211_FLAG_NEED_RTNL, }, + { + .cmd = NL80211_CMD_JOIN_OCB, + .doit = nl80211_join_ocb, + .policy = nl80211_policy, + .flags = GENL_ADMIN_PERM, + .internal_flags = NL80211_FLAG_NEED_NETDEV_UP | + NL80211_FLAG_NEED_RTNL, + }, + { + .cmd = NL80211_CMD_LEAVE_OCB, + .doit = nl80211_leave_ocb, + .policy = nl80211_policy, + .flags = GENL_ADMIN_PERM, + .internal_flags = NL80211_FLAG_NEED_NETDEV_UP | + NL80211_FLAG_NEED_RTNL, + }, #ifdef CONFIG_PM { .cmd = NL80211_CMD_GET_WOWLAN, @@ -10294,6 +10720,22 @@ static const struct genl_ops nl80211_ops[] = { .internal_flags = NL80211_FLAG_NEED_NETDEV_UP | NL80211_FLAG_NEED_RTNL, }, + { + .cmd = NL80211_CMD_TDLS_CHANNEL_SWITCH, + .doit = nl80211_tdls_channel_switch, + .policy = nl80211_policy, + .flags = GENL_ADMIN_PERM, + .internal_flags = NL80211_FLAG_NEED_NETDEV_UP | + NL80211_FLAG_NEED_RTNL, + }, + { + .cmd = NL80211_CMD_TDLS_CANCEL_CHANNEL_SWITCH, + .doit = nl80211_tdls_cancel_channel_switch, + .policy = nl80211_policy, + .flags = GENL_ADMIN_PERM, + .internal_flags = NL80211_FLAG_NEED_NETDEV_UP | + NL80211_FLAG_NEED_RTNL, + }, }; /* notification functions */ @@ -11325,55 +11767,155 @@ void cfg80211_mgmt_tx_status(struct wireless_dev *wdev, u64 cookie, } EXPORT_SYMBOL(cfg80211_mgmt_tx_status); -void cfg80211_cqm_rssi_notify(struct net_device *dev, - enum nl80211_cqm_rssi_threshold_event rssi_event, - gfp_t gfp) +static struct sk_buff *cfg80211_prepare_cqm(struct net_device *dev, + const char *mac, gfp_t gfp) { struct wireless_dev *wdev = dev->ieee80211_ptr; - struct wiphy *wiphy = wdev->wiphy; - struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy); - struct sk_buff *msg; - struct nlattr *pinfoattr; - void *hdr; - - trace_cfg80211_cqm_rssi_notify(dev, rssi_event); + struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy); + struct sk_buff *msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp); + void **cb; - msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp); if (!msg) - return; + return NULL; - hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_NOTIFY_CQM); - if (!hdr) { + cb = (void **)msg->cb; + + cb[0] = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_NOTIFY_CQM); + if (!cb[0]) { nlmsg_free(msg); - return; + return NULL; } if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) || nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex)) goto nla_put_failure; - pinfoattr = nla_nest_start(msg, NL80211_ATTR_CQM); - if (!pinfoattr) + if (mac && nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, mac)) goto nla_put_failure; - if (nla_put_u32(msg, NL80211_ATTR_CQM_RSSI_THRESHOLD_EVENT, - rssi_event)) + cb[1] = nla_nest_start(msg, NL80211_ATTR_CQM); + if (!cb[1]) goto nla_put_failure; - nla_nest_end(msg, pinfoattr); + cb[2] = rdev; - genlmsg_end(msg, hdr); + return msg; + nla_put_failure: + nlmsg_free(msg); + return NULL; +} + +static void cfg80211_send_cqm(struct sk_buff *msg, gfp_t gfp) +{ + void **cb = (void **)msg->cb; + struct cfg80211_registered_device *rdev = cb[2]; + + nla_nest_end(msg, cb[1]); + genlmsg_end(msg, cb[0]); + + memset(msg->cb, 0, sizeof(msg->cb)); genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0, NL80211_MCGRP_MLME, gfp); +} + +void cfg80211_cqm_rssi_notify(struct net_device *dev, + enum nl80211_cqm_rssi_threshold_event rssi_event, + gfp_t gfp) +{ + struct sk_buff *msg; + + trace_cfg80211_cqm_rssi_notify(dev, rssi_event); + + if (WARN_ON(rssi_event != NL80211_CQM_RSSI_THRESHOLD_EVENT_LOW && + rssi_event != NL80211_CQM_RSSI_THRESHOLD_EVENT_HIGH)) + return; + + msg = cfg80211_prepare_cqm(dev, NULL, gfp); + if (!msg) + return; + + if (nla_put_u32(msg, NL80211_ATTR_CQM_RSSI_THRESHOLD_EVENT, + rssi_event)) + goto nla_put_failure; + + cfg80211_send_cqm(msg, gfp); + return; nla_put_failure: - genlmsg_cancel(msg, hdr); nlmsg_free(msg); } EXPORT_SYMBOL(cfg80211_cqm_rssi_notify); +void cfg80211_cqm_txe_notify(struct net_device *dev, + const u8 *peer, u32 num_packets, + u32 rate, u32 intvl, gfp_t gfp) +{ + struct sk_buff *msg; + + msg = cfg80211_prepare_cqm(dev, peer, gfp); + if (!msg) + return; + + if (nla_put_u32(msg, NL80211_ATTR_CQM_TXE_PKTS, num_packets)) + goto nla_put_failure; + + if (nla_put_u32(msg, NL80211_ATTR_CQM_TXE_RATE, rate)) + goto nla_put_failure; + + if (nla_put_u32(msg, NL80211_ATTR_CQM_TXE_INTVL, intvl)) + goto nla_put_failure; + + cfg80211_send_cqm(msg, gfp); + return; + + nla_put_failure: + nlmsg_free(msg); +} +EXPORT_SYMBOL(cfg80211_cqm_txe_notify); + +void cfg80211_cqm_pktloss_notify(struct net_device *dev, + const u8 *peer, u32 num_packets, gfp_t gfp) +{ + struct sk_buff *msg; + + trace_cfg80211_cqm_pktloss_notify(dev, peer, num_packets); + + msg = cfg80211_prepare_cqm(dev, peer, gfp); + if (!msg) + return; + + if (nla_put_u32(msg, NL80211_ATTR_CQM_PKT_LOSS_EVENT, num_packets)) + goto nla_put_failure; + + cfg80211_send_cqm(msg, gfp); + return; + + nla_put_failure: + nlmsg_free(msg); +} +EXPORT_SYMBOL(cfg80211_cqm_pktloss_notify); + +void cfg80211_cqm_beacon_loss_notify(struct net_device *dev, gfp_t gfp) +{ + struct sk_buff *msg; + + msg = cfg80211_prepare_cqm(dev, NULL, gfp); + if (!msg) + return; + + if (nla_put_flag(msg, NL80211_ATTR_CQM_BEACON_LOSS_EVENT)) + goto nla_put_failure; + + cfg80211_send_cqm(msg, gfp); + return; + + nla_put_failure: + nlmsg_free(msg); +} +EXPORT_SYMBOL(cfg80211_cqm_beacon_loss_notify); + static void nl80211_gtk_rekey_notify(struct cfg80211_registered_device *rdev, struct net_device *netdev, const u8 *bssid, const u8 *replay_ctr, gfp_t gfp) @@ -11491,7 +12033,9 @@ EXPORT_SYMBOL(cfg80211_pmksa_candidate_notify); static void nl80211_ch_switch_notify(struct cfg80211_registered_device *rdev, struct net_device *netdev, struct cfg80211_chan_def *chandef, - gfp_t gfp) + gfp_t gfp, + enum nl80211_commands notif, + u8 count) { struct sk_buff *msg; void *hdr; @@ -11500,7 +12044,7 @@ static void nl80211_ch_switch_notify(struct cfg80211_registered_device *rdev, if (!msg) return; - hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_CH_SWITCH_NOTIFY); + hdr = nl80211hdr_put(msg, 0, 0, 0, notif); if (!hdr) { nlmsg_free(msg); return; @@ -11512,6 +12056,10 @@ static void nl80211_ch_switch_notify(struct cfg80211_registered_device *rdev, if (nl80211_send_chandef(msg, chandef)) goto nla_put_failure; + if ((notif == NL80211_CMD_CH_SWITCH_STARTED_NOTIFY) && + (nla_put_u32(msg, NL80211_ATTR_CH_SWITCH_COUNT, count))) + goto nla_put_failure; + genlmsg_end(msg, hdr); genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0, @@ -11534,70 +12082,27 @@ void cfg80211_ch_switch_notify(struct net_device *dev, trace_cfg80211_ch_switch_notify(dev, chandef); - if (WARN_ON(wdev->iftype != NL80211_IFTYPE_AP && - wdev->iftype != NL80211_IFTYPE_P2P_GO && - wdev->iftype != NL80211_IFTYPE_ADHOC && - wdev->iftype != NL80211_IFTYPE_MESH_POINT)) - return; - wdev->chandef = *chandef; wdev->preset_chandef = *chandef; - nl80211_ch_switch_notify(rdev, dev, chandef, GFP_KERNEL); + nl80211_ch_switch_notify(rdev, dev, chandef, GFP_KERNEL, + NL80211_CMD_CH_SWITCH_NOTIFY, 0); } EXPORT_SYMBOL(cfg80211_ch_switch_notify); -void cfg80211_cqm_txe_notify(struct net_device *dev, - const u8 *peer, u32 num_packets, - u32 rate, u32 intvl, gfp_t gfp) +void cfg80211_ch_switch_started_notify(struct net_device *dev, + struct cfg80211_chan_def *chandef, + u8 count) { struct wireless_dev *wdev = dev->ieee80211_ptr; struct wiphy *wiphy = wdev->wiphy; struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy); - struct sk_buff *msg; - struct nlattr *pinfoattr; - void *hdr; - - msg = nlmsg_new(NLMSG_GOODSIZE, gfp); - if (!msg) - return; - - hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_NOTIFY_CQM); - if (!hdr) { - nlmsg_free(msg); - return; - } - - if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) || - nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) || - nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, peer)) - goto nla_put_failure; - - pinfoattr = nla_nest_start(msg, NL80211_ATTR_CQM); - if (!pinfoattr) - goto nla_put_failure; - if (nla_put_u32(msg, NL80211_ATTR_CQM_TXE_PKTS, num_packets)) - goto nla_put_failure; - - if (nla_put_u32(msg, NL80211_ATTR_CQM_TXE_RATE, rate)) - goto nla_put_failure; - - if (nla_put_u32(msg, NL80211_ATTR_CQM_TXE_INTVL, intvl)) - goto nla_put_failure; - - nla_nest_end(msg, pinfoattr); + trace_cfg80211_ch_switch_started_notify(dev, chandef); - 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); + nl80211_ch_switch_notify(rdev, dev, chandef, GFP_KERNEL, + NL80211_CMD_CH_SWITCH_STARTED_NOTIFY, count); } -EXPORT_SYMBOL(cfg80211_cqm_txe_notify); +EXPORT_SYMBOL(cfg80211_ch_switch_started_notify); void nl80211_radar_notify(struct cfg80211_registered_device *rdev, @@ -11647,54 +12152,6 @@ nl80211_radar_notify(struct cfg80211_registered_device *rdev, nlmsg_free(msg); } -void cfg80211_cqm_pktloss_notify(struct net_device *dev, - const u8 *peer, u32 num_packets, gfp_t gfp) -{ - struct wireless_dev *wdev = dev->ieee80211_ptr; - struct wiphy *wiphy = wdev->wiphy; - struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy); - struct sk_buff *msg; - struct nlattr *pinfoattr; - void *hdr; - - trace_cfg80211_cqm_pktloss_notify(dev, peer, num_packets); - - msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp); - if (!msg) - return; - - hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_NOTIFY_CQM); - if (!hdr) { - nlmsg_free(msg); - return; - } - - if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) || - nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) || - nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, peer)) - goto nla_put_failure; - - pinfoattr = nla_nest_start(msg, NL80211_ATTR_CQM); - if (!pinfoattr) - goto nla_put_failure; - - if (nla_put_u32(msg, NL80211_ATTR_CQM_PKT_LOSS_EVENT, num_packets)) - goto nla_put_failure; - - nla_nest_end(msg, pinfoattr); - - 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_cqm_pktloss_notify); - void cfg80211_probe_status(struct net_device *dev, const u8 *addr, u64 cookie, bool acked, gfp_t gfp) { @@ -11782,6 +12239,67 @@ void cfg80211_report_obss_beacon(struct wiphy *wiphy, EXPORT_SYMBOL(cfg80211_report_obss_beacon); #ifdef CONFIG_PM +static int cfg80211_net_detect_results(struct sk_buff *msg, + struct cfg80211_wowlan_wakeup *wakeup) +{ + struct cfg80211_wowlan_nd_info *nd = wakeup->net_detect; + struct nlattr *nl_results, *nl_match, *nl_freqs; + int i, j; + + nl_results = nla_nest_start( + msg, NL80211_WOWLAN_TRIG_NET_DETECT_RESULTS); + if (!nl_results) + return -EMSGSIZE; + + for (i = 0; i < nd->n_matches; i++) { + struct cfg80211_wowlan_nd_match *match = nd->matches[i]; + + nl_match = nla_nest_start(msg, i); + if (!nl_match) + break; + + /* The SSID attribute is optional in nl80211, but for + * simplicity reasons it's always present in the + * cfg80211 structure. If a driver can't pass the + * SSID, that needs to be changed. A zero length SSID + * is still a valid SSID (wildcard), so it cannot be + * used for this purpose. + */ + if (nla_put(msg, NL80211_ATTR_SSID, match->ssid.ssid_len, + match->ssid.ssid)) { + nla_nest_cancel(msg, nl_match); + goto out; + } + + if (match->n_channels) { + nl_freqs = nla_nest_start( + msg, NL80211_ATTR_SCAN_FREQUENCIES); + if (!nl_freqs) { + nla_nest_cancel(msg, nl_match); + goto out; + } + + for (j = 0; j < match->n_channels; j++) { + if (nla_put_u32(msg, + NL80211_ATTR_WIPHY_FREQ, + match->channels[j])) { + nla_nest_cancel(msg, nl_freqs); + nla_nest_cancel(msg, nl_match); + goto out; + } + } + + nla_nest_end(msg, nl_freqs); + } + + nla_nest_end(msg, nl_match); + } + +out: + nla_nest_end(msg, nl_results); + return 0; +} + void cfg80211_report_wowlan_wakeup(struct wireless_dev *wdev, struct cfg80211_wowlan_wakeup *wakeup, gfp_t gfp) @@ -11876,6 +12394,10 @@ void cfg80211_report_wowlan_wakeup(struct wireless_dev *wdev, goto free_msg; } + if (wakeup->net_detect && + cfg80211_net_detect_results(msg, wakeup)) + goto free_msg; + nla_nest_end(msg, reasons); } |