diff options
Diffstat (limited to 'net/wireless/nl80211.c')
-rw-r--r-- | net/wireless/nl80211.c | 925 |
1 files changed, 601 insertions, 324 deletions
diff --git a/net/wireless/nl80211.c b/net/wireless/nl80211.c index 4fe2e6e2bc7..7257164af91 100644 --- a/net/wireless/nl80211.c +++ b/net/wireless/nl80211.c @@ -168,8 +168,8 @@ __cfg80211_rdev_from_attrs(struct net *netns, struct nlattr **attrs) netdev = __dev_get_by_index(netns, ifindex); if (netdev) { if (netdev->ieee80211_ptr) - tmp = wiphy_to_dev( - netdev->ieee80211_ptr->wiphy); + tmp = wiphy_to_rdev( + netdev->ieee80211_ptr->wiphy); else tmp = NULL; @@ -337,6 +337,7 @@ static const struct nla_policy nl80211_policy[NL80211_ATTR_MAX+1] = { [NL80211_ATTR_TDLS_OPERATION] = { .type = NLA_U8 }, [NL80211_ATTR_TDLS_SUPPORT] = { .type = NLA_FLAG }, [NL80211_ATTR_TDLS_EXTERNAL_SETUP] = { .type = NLA_FLAG }, + [NL80211_ATTR_TDLS_INITIATOR] = { .type = NLA_FLAG }, [NL80211_ATTR_DONT_WAIT_FOR_ACK] = { .type = NLA_FLAG }, [NL80211_ATTR_PROBE_RESP] = { .type = NLA_BINARY, .len = IEEE80211_MAX_DATA_LEN }, @@ -371,8 +372,8 @@ static const struct nla_policy nl80211_policy[NL80211_ATTR_MAX+1] = { [NL80211_ATTR_CH_SWITCH_COUNT] = { .type = NLA_U32 }, [NL80211_ATTR_CH_SWITCH_BLOCK_TX] = { .type = NLA_FLAG }, [NL80211_ATTR_CSA_IES] = { .type = NLA_NESTED }, - [NL80211_ATTR_CSA_C_OFF_BEACON] = { .type = NLA_U16 }, - [NL80211_ATTR_CSA_C_OFF_PRESP] = { .type = NLA_U16 }, + [NL80211_ATTR_CSA_C_OFF_BEACON] = { .type = NLA_BINARY }, + [NL80211_ATTR_CSA_C_OFF_PRESP] = { .type = NLA_BINARY }, [NL80211_ATTR_STA_SUPPORTED_CHANNELS] = { .type = NLA_BINARY }, [NL80211_ATTR_STA_SUPPORTED_OPER_CLASSES] = { .type = NLA_BINARY }, [NL80211_ATTR_HANDLE_DFS] = { .type = NLA_FLAG }, @@ -382,6 +383,11 @@ static const struct nla_policy nl80211_policy[NL80211_ATTR_MAX+1] = { [NL80211_ATTR_VENDOR_DATA] = { .type = NLA_BINARY }, [NL80211_ATTR_QOS_MAP] = { .type = NLA_BINARY, .len = IEEE80211_QOS_MAP_LEN_MAX }, + [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_CSA_C_OFFSETS_TX] = { .type = NLA_BINARY }, }; /* policy for the key attributes */ @@ -481,7 +487,7 @@ static int nl80211_prepare_wdev_dump(struct sk_buff *skb, err = PTR_ERR(*wdev); goto out_unlock; } - *rdev = wiphy_to_dev((*wdev)->wiphy); + *rdev = wiphy_to_rdev((*wdev)->wiphy); /* 0 is the first index - add 1 to parse only once */ cb->args[0] = (*rdev)->wiphy_idx + 1; cb->args[1] = (*wdev)->identifier; @@ -494,7 +500,7 @@ static int nl80211_prepare_wdev_dump(struct sk_buff *skb, err = -ENODEV; goto out_unlock; } - *rdev = wiphy_to_dev(wiphy); + *rdev = wiphy_to_rdev(wiphy); *wdev = NULL; list_for_each_entry(tmp, &(*rdev)->wdev_list, list) { @@ -563,6 +569,13 @@ static int nl80211_msg_put_channel(struct sk_buff *msg, struct ieee80211_channel *chan, bool large) { + /* Some channels must be completely excluded from the + * list to protect old user-space tools from breaking + */ + if (!large && chan->flags & + (IEEE80211_CHAN_NO_10MHZ | IEEE80211_CHAN_NO_20MHZ)) + return 0; + if (nla_put_u32(msg, NL80211_FREQUENCY_ATTR_FREQ, chan->center_freq)) goto nla_put_failure; @@ -590,6 +603,10 @@ static int nl80211_msg_put_channel(struct sk_buff *msg, if (nla_put_u32(msg, NL80211_FREQUENCY_ATTR_DFS_TIME, time)) goto nla_put_failure; + if (nla_put_u32(msg, + NL80211_FREQUENCY_ATTR_DFS_CAC_TIME, + chan->dfs_cac_ms)) + goto nla_put_failure; } } @@ -606,6 +623,18 @@ static int nl80211_msg_put_channel(struct sk_buff *msg, if ((chan->flags & IEEE80211_CHAN_NO_160MHZ) && nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_160MHZ)) goto nla_put_failure; + if ((chan->flags & IEEE80211_CHAN_INDOOR_ONLY) && + nla_put_flag(msg, NL80211_FREQUENCY_ATTR_INDOOR_ONLY)) + goto nla_put_failure; + if ((chan->flags & IEEE80211_CHAN_GO_CONCURRENT) && + nla_put_flag(msg, NL80211_FREQUENCY_ATTR_GO_CONCURRENT)) + goto nla_put_failure; + if ((chan->flags & IEEE80211_CHAN_NO_20MHZ) && + nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_20MHZ)) + goto nla_put_failure; + if ((chan->flags & IEEE80211_CHAN_NO_10MHZ) && + nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_10MHZ)) + goto nla_put_failure; } if (nla_put_u32(msg, NL80211_FREQUENCY_ATTR_MAX_TX_POWER, @@ -855,6 +884,19 @@ static int nl80211_key_allowed(struct wireless_dev *wdev) return 0; } +static struct ieee80211_channel *nl80211_get_valid_chan(struct wiphy *wiphy, + struct nlattr *tb) +{ + struct ieee80211_channel *chan; + + if (tb == NULL) + return NULL; + chan = ieee80211_get_channel(wiphy, nla_get_u32(tb)); + if (!chan || chan->flags & IEEE80211_CHAN_DISABLED) + return NULL; + return chan; +} + static int nl80211_put_iftypes(struct sk_buff *msg, u32 attr, u16 ifmodes) { struct nlattr *nl_modes = nla_nest_start(msg, attr); @@ -930,8 +972,10 @@ static int nl80211_put_iface_combinations(struct wiphy *wiphy, c->max_interfaces)) goto nla_put_failure; if (large && - nla_put_u32(msg, NL80211_IFACE_COMB_RADAR_DETECT_WIDTHS, - c->radar_detect_widths)) + (nla_put_u32(msg, NL80211_IFACE_COMB_RADAR_DETECT_WIDTHS, + c->radar_detect_widths) || + nla_put_u32(msg, NL80211_IFACE_COMB_RADAR_DETECT_REGIONS, + c->radar_detect_regions))) goto nla_put_failure; nla_nest_end(msg, nl_combi); @@ -986,42 +1030,42 @@ static int nl80211_send_wowlan_tcp_caps(struct cfg80211_registered_device *rdev, } static int nl80211_send_wowlan(struct sk_buff *msg, - struct cfg80211_registered_device *dev, + struct cfg80211_registered_device *rdev, bool large) { struct nlattr *nl_wowlan; - if (!dev->wiphy.wowlan) + if (!rdev->wiphy.wowlan) return 0; nl_wowlan = nla_nest_start(msg, NL80211_ATTR_WOWLAN_TRIGGERS_SUPPORTED); if (!nl_wowlan) return -ENOBUFS; - if (((dev->wiphy.wowlan->flags & WIPHY_WOWLAN_ANY) && + if (((rdev->wiphy.wowlan->flags & WIPHY_WOWLAN_ANY) && nla_put_flag(msg, NL80211_WOWLAN_TRIG_ANY)) || - ((dev->wiphy.wowlan->flags & WIPHY_WOWLAN_DISCONNECT) && + ((rdev->wiphy.wowlan->flags & WIPHY_WOWLAN_DISCONNECT) && nla_put_flag(msg, NL80211_WOWLAN_TRIG_DISCONNECT)) || - ((dev->wiphy.wowlan->flags & WIPHY_WOWLAN_MAGIC_PKT) && + ((rdev->wiphy.wowlan->flags & WIPHY_WOWLAN_MAGIC_PKT) && nla_put_flag(msg, NL80211_WOWLAN_TRIG_MAGIC_PKT)) || - ((dev->wiphy.wowlan->flags & WIPHY_WOWLAN_SUPPORTS_GTK_REKEY) && + ((rdev->wiphy.wowlan->flags & WIPHY_WOWLAN_SUPPORTS_GTK_REKEY) && nla_put_flag(msg, NL80211_WOWLAN_TRIG_GTK_REKEY_SUPPORTED)) || - ((dev->wiphy.wowlan->flags & WIPHY_WOWLAN_GTK_REKEY_FAILURE) && + ((rdev->wiphy.wowlan->flags & WIPHY_WOWLAN_GTK_REKEY_FAILURE) && nla_put_flag(msg, NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE)) || - ((dev->wiphy.wowlan->flags & WIPHY_WOWLAN_EAP_IDENTITY_REQ) && + ((rdev->wiphy.wowlan->flags & WIPHY_WOWLAN_EAP_IDENTITY_REQ) && nla_put_flag(msg, NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST)) || - ((dev->wiphy.wowlan->flags & WIPHY_WOWLAN_4WAY_HANDSHAKE) && + ((rdev->wiphy.wowlan->flags & WIPHY_WOWLAN_4WAY_HANDSHAKE) && nla_put_flag(msg, NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE)) || - ((dev->wiphy.wowlan->flags & WIPHY_WOWLAN_RFKILL_RELEASE) && + ((rdev->wiphy.wowlan->flags & WIPHY_WOWLAN_RFKILL_RELEASE) && nla_put_flag(msg, NL80211_WOWLAN_TRIG_RFKILL_RELEASE))) return -ENOBUFS; - if (dev->wiphy.wowlan->n_patterns) { + if (rdev->wiphy.wowlan->n_patterns) { struct nl80211_pattern_support pat = { - .max_patterns = dev->wiphy.wowlan->n_patterns, - .min_pattern_len = dev->wiphy.wowlan->pattern_min_len, - .max_pattern_len = dev->wiphy.wowlan->pattern_max_len, - .max_pkt_offset = dev->wiphy.wowlan->max_pkt_offset, + .max_patterns = rdev->wiphy.wowlan->n_patterns, + .min_pattern_len = rdev->wiphy.wowlan->pattern_min_len, + .max_pattern_len = rdev->wiphy.wowlan->pattern_max_len, + .max_pkt_offset = rdev->wiphy.wowlan->max_pkt_offset, }; if (nla_put(msg, NL80211_WOWLAN_TRIG_PKT_PATTERN, @@ -1029,7 +1073,7 @@ static int nl80211_send_wowlan(struct sk_buff *msg, return -ENOBUFS; } - if (large && nl80211_send_wowlan_tcp_caps(dev, msg)) + if (large && nl80211_send_wowlan_tcp_caps(rdev, msg)) return -ENOBUFS; nla_nest_end(msg, nl_wowlan); @@ -1039,19 +1083,19 @@ static int nl80211_send_wowlan(struct sk_buff *msg, #endif static int nl80211_send_coalesce(struct sk_buff *msg, - struct cfg80211_registered_device *dev) + struct cfg80211_registered_device *rdev) { struct nl80211_coalesce_rule_support rule; - if (!dev->wiphy.coalesce) + if (!rdev->wiphy.coalesce) return 0; - rule.max_rules = dev->wiphy.coalesce->n_rules; - rule.max_delay = dev->wiphy.coalesce->max_delay; - rule.pat.max_patterns = dev->wiphy.coalesce->n_patterns; - rule.pat.min_pattern_len = dev->wiphy.coalesce->pattern_min_len; - rule.pat.max_pattern_len = dev->wiphy.coalesce->pattern_max_len; - rule.pat.max_pkt_offset = dev->wiphy.coalesce->max_pkt_offset; + rule.max_rules = rdev->wiphy.coalesce->n_rules; + rule.max_delay = rdev->wiphy.coalesce->max_delay; + rule.pat.max_patterns = rdev->wiphy.coalesce->n_patterns; + rule.pat.min_pattern_len = rdev->wiphy.coalesce->pattern_min_len; + rule.pat.max_pattern_len = rdev->wiphy.coalesce->pattern_max_len; + rule.pat.max_pkt_offset = rdev->wiphy.coalesce->max_pkt_offset; if (nla_put(msg, NL80211_ATTR_COALESCE_RULE, sizeof(rule), &rule)) return -ENOBUFS; @@ -1182,7 +1226,8 @@ struct nl80211_dump_wiphy_state { bool split; }; -static int nl80211_send_wiphy(struct cfg80211_registered_device *dev, +static int nl80211_send_wiphy(struct cfg80211_registered_device *rdev, + enum nl80211_commands cmd, struct sk_buff *msg, u32 portid, u32 seq, int flags, struct nl80211_dump_wiphy_state *state) { @@ -1194,63 +1239,66 @@ static int nl80211_send_wiphy(struct cfg80211_registered_device *dev, struct ieee80211_channel *chan; int i; const struct ieee80211_txrx_stypes *mgmt_stypes = - dev->wiphy.mgmt_stypes; + rdev->wiphy.mgmt_stypes; u32 features; - hdr = nl80211hdr_put(msg, portid, seq, flags, NL80211_CMD_NEW_WIPHY); + hdr = nl80211hdr_put(msg, portid, seq, flags, cmd); if (!hdr) return -ENOBUFS; if (WARN_ON(!state)) return -EINVAL; - if (nla_put_u32(msg, NL80211_ATTR_WIPHY, dev->wiphy_idx) || + if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) || nla_put_string(msg, NL80211_ATTR_WIPHY_NAME, - wiphy_name(&dev->wiphy)) || + wiphy_name(&rdev->wiphy)) || nla_put_u32(msg, NL80211_ATTR_GENERATION, cfg80211_rdev_list_generation)) goto nla_put_failure; + if (cmd != NL80211_CMD_NEW_WIPHY) + goto finish; + switch (state->split_start) { case 0: if (nla_put_u8(msg, NL80211_ATTR_WIPHY_RETRY_SHORT, - dev->wiphy.retry_short) || + rdev->wiphy.retry_short) || nla_put_u8(msg, NL80211_ATTR_WIPHY_RETRY_LONG, - dev->wiphy.retry_long) || + rdev->wiphy.retry_long) || nla_put_u32(msg, NL80211_ATTR_WIPHY_FRAG_THRESHOLD, - dev->wiphy.frag_threshold) || + rdev->wiphy.frag_threshold) || nla_put_u32(msg, NL80211_ATTR_WIPHY_RTS_THRESHOLD, - dev->wiphy.rts_threshold) || + rdev->wiphy.rts_threshold) || nla_put_u8(msg, NL80211_ATTR_WIPHY_COVERAGE_CLASS, - dev->wiphy.coverage_class) || + rdev->wiphy.coverage_class) || nla_put_u8(msg, NL80211_ATTR_MAX_NUM_SCAN_SSIDS, - dev->wiphy.max_scan_ssids) || + rdev->wiphy.max_scan_ssids) || nla_put_u8(msg, NL80211_ATTR_MAX_NUM_SCHED_SCAN_SSIDS, - dev->wiphy.max_sched_scan_ssids) || + rdev->wiphy.max_sched_scan_ssids) || nla_put_u16(msg, NL80211_ATTR_MAX_SCAN_IE_LEN, - dev->wiphy.max_scan_ie_len) || + rdev->wiphy.max_scan_ie_len) || nla_put_u16(msg, NL80211_ATTR_MAX_SCHED_SCAN_IE_LEN, - dev->wiphy.max_sched_scan_ie_len) || + rdev->wiphy.max_sched_scan_ie_len) || nla_put_u8(msg, NL80211_ATTR_MAX_MATCH_SETS, - dev->wiphy.max_match_sets)) + rdev->wiphy.max_match_sets)) goto nla_put_failure; - if ((dev->wiphy.flags & WIPHY_FLAG_IBSS_RSN) && + if ((rdev->wiphy.flags & WIPHY_FLAG_IBSS_RSN) && nla_put_flag(msg, NL80211_ATTR_SUPPORT_IBSS_RSN)) goto nla_put_failure; - if ((dev->wiphy.flags & WIPHY_FLAG_MESH_AUTH) && + if ((rdev->wiphy.flags & WIPHY_FLAG_MESH_AUTH) && nla_put_flag(msg, NL80211_ATTR_SUPPORT_MESH_AUTH)) goto nla_put_failure; - if ((dev->wiphy.flags & WIPHY_FLAG_AP_UAPSD) && + if ((rdev->wiphy.flags & WIPHY_FLAG_AP_UAPSD) && nla_put_flag(msg, NL80211_ATTR_SUPPORT_AP_UAPSD)) goto nla_put_failure; - if ((dev->wiphy.flags & WIPHY_FLAG_SUPPORTS_FW_ROAM) && + if ((rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_FW_ROAM) && nla_put_flag(msg, NL80211_ATTR_ROAM_SUPPORT)) goto nla_put_failure; - if ((dev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) && + if ((rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) && nla_put_flag(msg, NL80211_ATTR_TDLS_SUPPORT)) goto nla_put_failure; - if ((dev->wiphy.flags & WIPHY_FLAG_TDLS_EXTERNAL_SETUP) && + if ((rdev->wiphy.flags & WIPHY_FLAG_TDLS_EXTERNAL_SETUP) && nla_put_flag(msg, NL80211_ATTR_TDLS_EXTERNAL_SETUP)) goto nla_put_failure; state->split_start++; @@ -1258,35 +1306,35 @@ static int nl80211_send_wiphy(struct cfg80211_registered_device *dev, break; case 1: if (nla_put(msg, NL80211_ATTR_CIPHER_SUITES, - sizeof(u32) * dev->wiphy.n_cipher_suites, - dev->wiphy.cipher_suites)) + sizeof(u32) * rdev->wiphy.n_cipher_suites, + rdev->wiphy.cipher_suites)) goto nla_put_failure; if (nla_put_u8(msg, NL80211_ATTR_MAX_NUM_PMKIDS, - dev->wiphy.max_num_pmkids)) + rdev->wiphy.max_num_pmkids)) goto nla_put_failure; - if ((dev->wiphy.flags & WIPHY_FLAG_CONTROL_PORT_PROTOCOL) && + if ((rdev->wiphy.flags & WIPHY_FLAG_CONTROL_PORT_PROTOCOL) && nla_put_flag(msg, NL80211_ATTR_CONTROL_PORT_ETHERTYPE)) goto nla_put_failure; if (nla_put_u32(msg, NL80211_ATTR_WIPHY_ANTENNA_AVAIL_TX, - dev->wiphy.available_antennas_tx) || + rdev->wiphy.available_antennas_tx) || nla_put_u32(msg, NL80211_ATTR_WIPHY_ANTENNA_AVAIL_RX, - dev->wiphy.available_antennas_rx)) + rdev->wiphy.available_antennas_rx)) goto nla_put_failure; - if ((dev->wiphy.flags & WIPHY_FLAG_AP_PROBE_RESP_OFFLOAD) && + if ((rdev->wiphy.flags & WIPHY_FLAG_AP_PROBE_RESP_OFFLOAD) && nla_put_u32(msg, NL80211_ATTR_PROBE_RESP_OFFLOAD, - dev->wiphy.probe_resp_offload)) + rdev->wiphy.probe_resp_offload)) goto nla_put_failure; - if ((dev->wiphy.available_antennas_tx || - dev->wiphy.available_antennas_rx) && - dev->ops->get_antenna) { + if ((rdev->wiphy.available_antennas_tx || + rdev->wiphy.available_antennas_rx) && + rdev->ops->get_antenna) { u32 tx_ant = 0, rx_ant = 0; int res; - res = rdev_get_antenna(dev, &tx_ant, &rx_ant); + res = rdev_get_antenna(rdev, &tx_ant, &rx_ant); if (!res) { if (nla_put_u32(msg, NL80211_ATTR_WIPHY_ANTENNA_TX, @@ -1303,7 +1351,7 @@ static int nl80211_send_wiphy(struct cfg80211_registered_device *dev, break; case 2: if (nl80211_put_iftypes(msg, NL80211_ATTR_SUPPORTED_IFTYPES, - dev->wiphy.interface_modes)) + rdev->wiphy.interface_modes)) goto nla_put_failure; state->split_start++; if (state->split) @@ -1317,7 +1365,7 @@ static int nl80211_send_wiphy(struct cfg80211_registered_device *dev, band < IEEE80211_NUM_BANDS; band++) { struct ieee80211_supported_band *sband; - sband = dev->wiphy.bands[band]; + sband = rdev->wiphy.bands[band]; if (!sband) continue; @@ -1394,7 +1442,7 @@ static int nl80211_send_wiphy(struct cfg80211_registered_device *dev, i = 0; #define CMD(op, n) \ do { \ - if (dev->ops->op) { \ + if (rdev->ops->op) { \ i++; \ if (nla_put_u32(msg, i, NL80211_CMD_ ## n)) \ goto nla_put_failure; \ @@ -1418,59 +1466,58 @@ static int nl80211_send_wiphy(struct cfg80211_registered_device *dev, CMD(set_pmksa, SET_PMKSA); CMD(del_pmksa, DEL_PMKSA); CMD(flush_pmksa, FLUSH_PMKSA); - if (dev->wiphy.flags & WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL) + if (rdev->wiphy.flags & WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL) CMD(remain_on_channel, REMAIN_ON_CHANNEL); CMD(set_bitrate_mask, SET_TX_BITRATE_MASK); CMD(mgmt_tx, FRAME); CMD(mgmt_tx_cancel_wait, FRAME_WAIT_CANCEL); - if (dev->wiphy.flags & WIPHY_FLAG_NETNS_OK) { + if (rdev->wiphy.flags & WIPHY_FLAG_NETNS_OK) { i++; if (nla_put_u32(msg, i, NL80211_CMD_SET_WIPHY_NETNS)) goto nla_put_failure; } - if (dev->ops->set_monitor_channel || dev->ops->start_ap || - dev->ops->join_mesh) { + if (rdev->ops->set_monitor_channel || rdev->ops->start_ap || + rdev->ops->join_mesh) { i++; if (nla_put_u32(msg, i, NL80211_CMD_SET_CHANNEL)) goto nla_put_failure; } CMD(set_wds_peer, SET_WDS_PEER); - if (dev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) { + if (rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) { CMD(tdls_mgmt, TDLS_MGMT); CMD(tdls_oper, TDLS_OPER); } - if (dev->wiphy.flags & WIPHY_FLAG_SUPPORTS_SCHED_SCAN) + if (rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_SCHED_SCAN) CMD(sched_scan_start, START_SCHED_SCAN); CMD(probe_client, PROBE_CLIENT); CMD(set_noack_map, SET_NOACK_MAP); - if (dev->wiphy.flags & WIPHY_FLAG_REPORTS_OBSS) { + if (rdev->wiphy.flags & WIPHY_FLAG_REPORTS_OBSS) { i++; if (nla_put_u32(msg, i, NL80211_CMD_REGISTER_BEACONS)) goto nla_put_failure; } CMD(start_p2p_device, START_P2P_DEVICE); CMD(set_mcast_rate, SET_MCAST_RATE); +#ifdef CONFIG_NL80211_TESTMODE + CMD(testmode_cmd, TESTMODE); +#endif if (state->split) { CMD(crit_proto_start, CRIT_PROTOCOL_START); CMD(crit_proto_stop, CRIT_PROTOCOL_STOP); - if (dev->wiphy.flags & WIPHY_FLAG_HAS_CHANNEL_SWITCH) + if (rdev->wiphy.flags & WIPHY_FLAG_HAS_CHANNEL_SWITCH) CMD(channel_switch, CHANNEL_SWITCH); + CMD(set_qos_map, SET_QOS_MAP); } - CMD(set_qos_map, SET_QOS_MAP); - -#ifdef CONFIG_NL80211_TESTMODE - CMD(testmode_cmd, TESTMODE); -#endif - + /* add into the if now */ #undef CMD - if (dev->ops->connect || dev->ops->auth) { + if (rdev->ops->connect || rdev->ops->auth) { i++; if (nla_put_u32(msg, i, NL80211_CMD_CONNECT)) goto nla_put_failure; } - if (dev->ops->disconnect || dev->ops->deauth) { + if (rdev->ops->disconnect || rdev->ops->deauth) { i++; if (nla_put_u32(msg, i, NL80211_CMD_DISCONNECT)) goto nla_put_failure; @@ -1481,14 +1528,14 @@ static int nl80211_send_wiphy(struct cfg80211_registered_device *dev, if (state->split) break; case 5: - if (dev->ops->remain_on_channel && - (dev->wiphy.flags & WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL) && + if (rdev->ops->remain_on_channel && + (rdev->wiphy.flags & WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL) && nla_put_u32(msg, NL80211_ATTR_MAX_REMAIN_ON_CHANNEL_DURATION, - dev->wiphy.max_remain_on_channel_duration)) + rdev->wiphy.max_remain_on_channel_duration)) goto nla_put_failure; - if ((dev->wiphy.flags & WIPHY_FLAG_OFFCHAN_TX) && + if ((rdev->wiphy.flags & WIPHY_FLAG_OFFCHAN_TX) && nla_put_flag(msg, NL80211_ATTR_OFFCHANNEL_TX_OK)) goto nla_put_failure; @@ -1499,7 +1546,7 @@ static int nl80211_send_wiphy(struct cfg80211_registered_device *dev, break; case 6: #ifdef CONFIG_PM - if (nl80211_send_wowlan(msg, dev, state->split)) + if (nl80211_send_wowlan(msg, rdev, state->split)) goto nla_put_failure; state->split_start++; if (state->split) @@ -1509,10 +1556,10 @@ static int nl80211_send_wiphy(struct cfg80211_registered_device *dev, #endif case 7: if (nl80211_put_iftypes(msg, NL80211_ATTR_SOFTWARE_IFTYPES, - dev->wiphy.software_iftypes)) + rdev->wiphy.software_iftypes)) goto nla_put_failure; - if (nl80211_put_iface_combinations(&dev->wiphy, msg, + if (nl80211_put_iface_combinations(&rdev->wiphy, msg, state->split)) goto nla_put_failure; @@ -1520,12 +1567,12 @@ static int nl80211_send_wiphy(struct cfg80211_registered_device *dev, if (state->split) break; case 8: - if ((dev->wiphy.flags & WIPHY_FLAG_HAVE_AP_SME) && + if ((rdev->wiphy.flags & WIPHY_FLAG_HAVE_AP_SME) && nla_put_u32(msg, NL80211_ATTR_DEVICE_AP_SME, - dev->wiphy.ap_sme_capa)) + rdev->wiphy.ap_sme_capa)) goto nla_put_failure; - features = dev->wiphy.features; + features = rdev->wiphy.features; /* * We can only add the per-channel limit information if the * dump is split, otherwise it makes it too big. Therefore @@ -1536,16 +1583,16 @@ static int nl80211_send_wiphy(struct cfg80211_registered_device *dev, if (nla_put_u32(msg, NL80211_ATTR_FEATURE_FLAGS, features)) goto nla_put_failure; - if (dev->wiphy.ht_capa_mod_mask && + if (rdev->wiphy.ht_capa_mod_mask && nla_put(msg, NL80211_ATTR_HT_CAPABILITY_MASK, - sizeof(*dev->wiphy.ht_capa_mod_mask), - dev->wiphy.ht_capa_mod_mask)) + sizeof(*rdev->wiphy.ht_capa_mod_mask), + rdev->wiphy.ht_capa_mod_mask)) goto nla_put_failure; - if (dev->wiphy.flags & WIPHY_FLAG_HAVE_AP_SME && - dev->wiphy.max_acl_mac_addrs && + if (rdev->wiphy.flags & WIPHY_FLAG_HAVE_AP_SME && + rdev->wiphy.max_acl_mac_addrs && nla_put_u32(msg, NL80211_ATTR_MAC_ACL_MAX, - dev->wiphy.max_acl_mac_addrs)) + rdev->wiphy.max_acl_mac_addrs)) goto nla_put_failure; /* @@ -1561,35 +1608,41 @@ static int nl80211_send_wiphy(struct cfg80211_registered_device *dev, state->split_start++; break; case 9: - if (dev->wiphy.extended_capabilities && + if (rdev->wiphy.extended_capabilities && (nla_put(msg, NL80211_ATTR_EXT_CAPA, - dev->wiphy.extended_capabilities_len, - dev->wiphy.extended_capabilities) || + rdev->wiphy.extended_capabilities_len, + rdev->wiphy.extended_capabilities) || nla_put(msg, NL80211_ATTR_EXT_CAPA_MASK, - dev->wiphy.extended_capabilities_len, - dev->wiphy.extended_capabilities_mask))) + rdev->wiphy.extended_capabilities_len, + rdev->wiphy.extended_capabilities_mask))) goto nla_put_failure; - if (dev->wiphy.vht_capa_mod_mask && + if (rdev->wiphy.vht_capa_mod_mask && nla_put(msg, NL80211_ATTR_VHT_CAPABILITY_MASK, - sizeof(*dev->wiphy.vht_capa_mod_mask), - dev->wiphy.vht_capa_mod_mask)) + sizeof(*rdev->wiphy.vht_capa_mod_mask), + rdev->wiphy.vht_capa_mod_mask)) goto nla_put_failure; state->split_start++; break; case 10: - if (nl80211_send_coalesce(msg, dev)) + if (nl80211_send_coalesce(msg, rdev)) goto nla_put_failure; - if ((dev->wiphy.flags & WIPHY_FLAG_SUPPORTS_5_10_MHZ) && + if ((rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_5_10_MHZ) && (nla_put_flag(msg, NL80211_ATTR_SUPPORT_5_MHZ) || nla_put_flag(msg, NL80211_ATTR_SUPPORT_10_MHZ))) goto nla_put_failure; + + if (rdev->wiphy.max_ap_assoc_sta && + nla_put_u32(msg, NL80211_ATTR_MAX_AP_ASSOC_STA, + rdev->wiphy.max_ap_assoc_sta)) + goto nla_put_failure; + state->split_start++; break; case 11: - if (dev->wiphy.n_vendor_commands) { + if (rdev->wiphy.n_vendor_commands) { const struct nl80211_vendor_cmd_info *info; struct nlattr *nested; @@ -1597,15 +1650,15 @@ static int nl80211_send_wiphy(struct cfg80211_registered_device *dev, if (!nested) goto nla_put_failure; - for (i = 0; i < dev->wiphy.n_vendor_commands; i++) { - info = &dev->wiphy.vendor_commands[i].info; + for (i = 0; i < rdev->wiphy.n_vendor_commands; i++) { + info = &rdev->wiphy.vendor_commands[i].info; if (nla_put(msg, i + 1, sizeof(*info), info)) goto nla_put_failure; } nla_nest_end(msg, nested); } - if (dev->wiphy.n_vendor_events) { + if (rdev->wiphy.n_vendor_events) { const struct nl80211_vendor_cmd_info *info; struct nlattr *nested; @@ -1614,18 +1667,26 @@ static int nl80211_send_wiphy(struct cfg80211_registered_device *dev, if (!nested) goto nla_put_failure; - for (i = 0; i < dev->wiphy.n_vendor_events; i++) { - info = &dev->wiphy.vendor_events[i]; + for (i = 0; i < rdev->wiphy.n_vendor_events; i++) { + info = &rdev->wiphy.vendor_events[i]; if (nla_put(msg, i + 1, sizeof(*info), info)) goto nla_put_failure; } nla_nest_end(msg, nested); } + state->split_start++; + break; + case 12: + if (rdev->wiphy.flags & WIPHY_FLAG_HAS_CHANNEL_SWITCH && + nla_put_u8(msg, NL80211_ATTR_MAX_CSA_COUNTERS, + rdev->wiphy.max_num_csa_counters)) + goto nla_put_failure; /* done */ state->split_start = 0; break; } + finish: return genlmsg_end(msg, hdr); nla_put_failure: @@ -1658,7 +1719,7 @@ static int nl80211_dump_wiphy_parse(struct sk_buff *skb, if (!netdev) return -ENODEV; if (netdev->ieee80211_ptr) { - rdev = wiphy_to_dev( + rdev = wiphy_to_rdev( netdev->ieee80211_ptr->wiphy); state->filter_wiphy = rdev->wiphy_idx; } @@ -1671,7 +1732,7 @@ static int nl80211_dump_wiphy(struct sk_buff *skb, struct netlink_callback *cb) { int idx = 0, ret; struct nl80211_dump_wiphy_state *state = (void *)cb->args[0]; - struct cfg80211_registered_device *dev; + struct cfg80211_registered_device *rdev; rtnl_lock(); if (!state) { @@ -1690,17 +1751,18 @@ static int nl80211_dump_wiphy(struct sk_buff *skb, struct netlink_callback *cb) cb->args[0] = (long)state; } - list_for_each_entry(dev, &cfg80211_rdev_list, list) { - if (!net_eq(wiphy_net(&dev->wiphy), sock_net(skb->sk))) + list_for_each_entry(rdev, &cfg80211_rdev_list, list) { + if (!net_eq(wiphy_net(&rdev->wiphy), sock_net(skb->sk))) continue; if (++idx <= state->start) continue; if (state->filter_wiphy != -1 && - state->filter_wiphy != dev->wiphy_idx) + state->filter_wiphy != rdev->wiphy_idx) continue; /* attempt to fit multiple wiphy data chunks into the skb */ do { - ret = nl80211_send_wiphy(dev, skb, + ret = nl80211_send_wiphy(rdev, NL80211_CMD_NEW_WIPHY, + skb, NETLINK_CB(cb->skb).portid, cb->nlh->nlmsg_seq, NLM_F_MULTI, state); @@ -1748,14 +1810,15 @@ static int nl80211_dump_wiphy_done(struct netlink_callback *cb) static int nl80211_get_wiphy(struct sk_buff *skb, struct genl_info *info) { struct sk_buff *msg; - struct cfg80211_registered_device *dev = info->user_ptr[0]; + struct cfg80211_registered_device *rdev = info->user_ptr[0]; struct nl80211_dump_wiphy_state state = {}; msg = nlmsg_new(4096, GFP_KERNEL); if (!msg) return -ENOMEM; - if (nl80211_send_wiphy(dev, msg, info->snd_portid, info->snd_seq, 0, + if (nl80211_send_wiphy(rdev, NL80211_CMD_NEW_WIPHY, msg, + info->snd_portid, info->snd_seq, 0, &state) < 0) { nlmsg_free(msg); return -ENOBUFS; @@ -1882,18 +1945,20 @@ static int nl80211_parse_chandef(struct cfg80211_registered_device *rdev, } static int __nl80211_set_channel(struct cfg80211_registered_device *rdev, - struct wireless_dev *wdev, + struct net_device *dev, struct genl_info *info) { struct cfg80211_chan_def chandef; int result; enum nl80211_iftype iftype = NL80211_IFTYPE_MONITOR; + struct wireless_dev *wdev = NULL; - if (wdev) - iftype = wdev->iftype; - + if (dev) + wdev = dev->ieee80211_ptr; if (!nl80211_can_set_dev_channel(wdev)) return -EOPNOTSUPP; + if (wdev) + iftype = wdev->iftype; result = nl80211_parse_chandef(rdev, info, &chandef); if (result) @@ -1902,14 +1967,27 @@ static int __nl80211_set_channel(struct cfg80211_registered_device *rdev, switch (iftype) { case NL80211_IFTYPE_AP: case NL80211_IFTYPE_P2P_GO: - if (wdev->beacon_interval) { - result = -EBUSY; - break; - } - if (!cfg80211_reg_can_beacon(&rdev->wiphy, &chandef)) { + if (!cfg80211_reg_can_beacon(&rdev->wiphy, &chandef, iftype)) { result = -EINVAL; break; } + if (wdev->beacon_interval) { + if (!dev || !rdev->ops->set_ap_chanwidth || + !(rdev->wiphy.features & + NL80211_FEATURE_AP_MODE_CHAN_WIDTH_CHANGE)) { + result = -EBUSY; + break; + } + + /* Only allow dynamic channel width changes */ + if (chandef.chan != wdev->preset_chandef.chan) { + result = -EBUSY; + break; + } + result = rdev_set_ap_chanwidth(rdev, dev, &chandef); + if (result) + break; + } wdev->preset_chandef = chandef; result = 0; break; @@ -1931,7 +2009,7 @@ static int nl80211_set_channel(struct sk_buff *skb, struct genl_info *info) struct cfg80211_registered_device *rdev = info->user_ptr[0]; struct net_device *netdev = info->user_ptr[1]; - return __nl80211_set_channel(rdev, netdev->ieee80211_ptr, info); + return __nl80211_set_channel(rdev, netdev, info); } static int nl80211_set_wds_peer(struct sk_buff *skb, struct genl_info *info) @@ -1987,7 +2065,7 @@ static int nl80211_set_wiphy(struct sk_buff *skb, struct genl_info *info) netdev = __dev_get_by_index(genl_info_net(info), ifindex); if (netdev && netdev->ieee80211_ptr) - rdev = wiphy_to_dev(netdev->ieee80211_ptr->wiphy); + rdev = wiphy_to_rdev(netdev->ieee80211_ptr->wiphy); else netdev = NULL; } @@ -2035,10 +2113,12 @@ static int nl80211_set_wiphy(struct sk_buff *skb, struct genl_info *info) nla_for_each_nested(nl_txq_params, info->attrs[NL80211_ATTR_WIPHY_TXQ_PARAMS], rem_txq_params) { - nla_parse(tb, NL80211_TXQ_ATTR_MAX, - nla_data(nl_txq_params), - nla_len(nl_txq_params), - txq_params_policy); + result = nla_parse(tb, NL80211_TXQ_ATTR_MAX, + nla_data(nl_txq_params), + nla_len(nl_txq_params), + txq_params_policy); + if (result) + return result; result = parse_txq_params(tb, &txq_params); if (result) return result; @@ -2051,9 +2131,10 @@ static int nl80211_set_wiphy(struct sk_buff *skb, struct genl_info *info) } if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) { - result = __nl80211_set_channel(rdev, - nl80211_can_set_dev_channel(wdev) ? wdev : NULL, - info); + result = __nl80211_set_channel( + rdev, + nl80211_can_set_dev_channel(wdev) ? netdev : NULL, + info); if (result) return result; } @@ -2201,7 +2282,7 @@ static int nl80211_set_wiphy(struct sk_buff *skb, struct genl_info *info) static inline u64 wdev_id(struct wireless_dev *wdev) { return (u64)wdev->identifier | - ((u64)wiphy_to_dev(wdev->wiphy)->wiphy_idx << 32); + ((u64)wiphy_to_rdev(wdev->wiphy)->wiphy_idx << 32); } static int nl80211_send_chandef(struct sk_buff *msg, @@ -2327,7 +2408,7 @@ static int nl80211_dump_interface(struct sk_buff *skb, struct netlink_callback * static int nl80211_get_interface(struct sk_buff *skb, struct genl_info *info) { struct sk_buff *msg; - struct cfg80211_registered_device *dev = info->user_ptr[0]; + struct cfg80211_registered_device *rdev = info->user_ptr[0]; struct wireless_dev *wdev = info->user_ptr[1]; msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); @@ -2335,7 +2416,7 @@ 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, - dev, wdev) < 0) { + rdev, wdev) < 0) { nlmsg_free(msg); return -ENOBUFS; } @@ -2486,6 +2567,9 @@ static int nl80211_new_interface(struct sk_buff *skb, struct genl_info *info) enum nl80211_iftype type = NL80211_IFTYPE_UNSPECIFIED; u32 flags; + /* to avoid failing a new interface creation due to pending removal */ + cfg80211_destroy_ifaces(rdev); + memset(¶ms, 0, sizeof(params)); if (!info->attrs[NL80211_ATTR_IFNAME]) @@ -2535,6 +2619,9 @@ static int nl80211_new_interface(struct sk_buff *skb, struct genl_info *info) return PTR_ERR(wdev); } + if (info->attrs[NL80211_ATTR_IFACE_SOCKET_OWNER]) + wdev->owner_nlportid = info->snd_portid; + switch (type) { case NL80211_IFTYPE_MESH_POINT: if (!info->attrs[NL80211_ATTR_MESH_ID]) @@ -3114,7 +3201,6 @@ static int nl80211_start_ap(struct sk_buff *skb, struct genl_info *info) struct wireless_dev *wdev = dev->ieee80211_ptr; struct cfg80211_ap_settings params; int err; - u8 radar_detect_width = 0; if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP && dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO) @@ -3230,24 +3316,10 @@ static int nl80211_start_ap(struct sk_buff *skb, struct genl_info *info) } else if (!nl80211_get_ap_channel(rdev, ¶ms)) return -EINVAL; - if (!cfg80211_reg_can_beacon(&rdev->wiphy, ¶ms.chandef)) + if (!cfg80211_reg_can_beacon(&rdev->wiphy, ¶ms.chandef, + wdev->iftype)) return -EINVAL; - err = cfg80211_chandef_dfs_required(wdev->wiphy, ¶ms.chandef); - if (err < 0) - return err; - if (err) { - radar_detect_width = BIT(params.chandef.width); - params.radar_required = true; - } - - err = cfg80211_can_use_iftype_chan(rdev, wdev, wdev->iftype, - params.chandef.chan, - CHAN_MODE_SHARED, - radar_detect_width); - if (err) - return err; - if (info->attrs[NL80211_ATTR_ACL_POLICY]) { params.acl = parse_acl_data(&rdev->wiphy, info); if (IS_ERR(params.acl)) @@ -3259,7 +3331,7 @@ static int nl80211_start_ap(struct sk_buff *skb, struct genl_info *info) if (!err) { wdev->preset_chandef = params.chandef; wdev->beacon_interval = params.beacon_interval; - wdev->channel = params.chandef.chan; + wdev->chandef = params.chandef; wdev->ssid_len = params.ssid_len; memcpy(wdev->ssid, params.ssid, wdev->ssid_len); } @@ -3304,7 +3376,7 @@ static int nl80211_stop_ap(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_stop_ap(rdev, dev); + return cfg80211_stop_ap(rdev, dev, false); } static const struct nla_policy sta_flags_policy[NL80211_STA_FLAG_MAX + 1] = { @@ -3585,6 +3657,10 @@ static int nl80211_send_station(struct sk_buff *msg, u32 portid, u32 seq, nla_put_u32(msg, NL80211_STA_INFO_TX_FAILED, sinfo->tx_failed)) goto nla_put_failure; + if ((sinfo->filled & STATION_INFO_EXPECTED_THROUGHPUT) && + nla_put_u32(msg, NL80211_STA_INFO_EXPECTED_THROUGHPUT, + sinfo->expected_throughput)) + goto nla_put_failure; if ((sinfo->filled & STATION_INFO_BEACON_LOSS_COUNT) && nla_put_u32(msg, NL80211_STA_INFO_BEACON_LOSS, sinfo->beacon_loss_count)) @@ -3647,13 +3723,13 @@ static int nl80211_dump_station(struct sk_buff *skb, struct netlink_callback *cb) { struct station_info sinfo; - struct cfg80211_registered_device *dev; + struct cfg80211_registered_device *rdev; struct wireless_dev *wdev; u8 mac_addr[ETH_ALEN]; int sta_idx = cb->args[2]; int err; - err = nl80211_prepare_wdev_dump(skb, cb, &dev, &wdev); + err = nl80211_prepare_wdev_dump(skb, cb, &rdev, &wdev); if (err) return err; @@ -3662,14 +3738,14 @@ static int nl80211_dump_station(struct sk_buff *skb, goto out_err; } - if (!dev->ops->dump_station) { + if (!rdev->ops->dump_station) { err = -EOPNOTSUPP; goto out_err; } while (1) { memset(&sinfo, 0, sizeof(sinfo)); - err = rdev_dump_station(dev, wdev->netdev, sta_idx, + err = rdev_dump_station(rdev, wdev->netdev, sta_idx, mac_addr, &sinfo); if (err == -ENOENT) break; @@ -3679,7 +3755,7 @@ static int nl80211_dump_station(struct sk_buff *skb, if (nl80211_send_station(skb, NETLINK_CB(cb->skb).portid, cb->nlh->nlmsg_seq, NLM_F_MULTI, - dev, wdev->netdev, mac_addr, + rdev, wdev->netdev, mac_addr, &sinfo) < 0) goto out; @@ -3691,7 +3767,7 @@ static int nl80211_dump_station(struct sk_buff *skb, cb->args[2] = sta_idx; err = skb->len; out_err: - nl80211_finish_wdev_dump(dev); + nl80211_finish_wdev_dump(rdev); return err; } @@ -3738,7 +3814,8 @@ int cfg80211_check_station_change(struct wiphy *wiphy, { if (params->listen_interval != -1) return -EINVAL; - if (params->aid) + if (params->aid && + !(params->sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER))) return -EINVAL; /* When you run into this, adjust the code below for the new flag */ @@ -3902,8 +3979,8 @@ static struct net_device *get_vlan(struct genl_info *info, return ERR_PTR(ret); } -static struct nla_policy -nl80211_sta_wme_policy[NL80211_STA_WME_MAX + 1] __read_mostly = { +static const struct nla_policy +nl80211_sta_wme_policy[NL80211_STA_WME_MAX + 1] = { [NL80211_STA_WME_UAPSD_QUEUES] = { .type = NLA_U8 }, [NL80211_STA_WME_MAX_SP] = { .type = NLA_U8 }, }; @@ -4352,18 +4429,18 @@ static int nl80211_dump_mpath(struct sk_buff *skb, struct netlink_callback *cb) { struct mpath_info pinfo; - struct cfg80211_registered_device *dev; + struct cfg80211_registered_device *rdev; struct wireless_dev *wdev; u8 dst[ETH_ALEN]; u8 next_hop[ETH_ALEN]; int path_idx = cb->args[2]; int err; - err = nl80211_prepare_wdev_dump(skb, cb, &dev, &wdev); + err = nl80211_prepare_wdev_dump(skb, cb, &rdev, &wdev); if (err) return err; - if (!dev->ops->dump_mpath) { + if (!rdev->ops->dump_mpath) { err = -EOPNOTSUPP; goto out_err; } @@ -4374,7 +4451,7 @@ static int nl80211_dump_mpath(struct sk_buff *skb, } while (1) { - err = rdev_dump_mpath(dev, wdev->netdev, path_idx, dst, + err = rdev_dump_mpath(rdev, wdev->netdev, path_idx, dst, next_hop, &pinfo); if (err == -ENOENT) break; @@ -4395,7 +4472,7 @@ static int nl80211_dump_mpath(struct sk_buff *skb, cb->args[2] = path_idx; err = skb->len; out_err: - nl80211_finish_wdev_dump(dev); + nl80211_finish_wdev_dump(rdev); return err; } @@ -4590,6 +4667,7 @@ static const struct nla_policy reg_rule_policy[NL80211_REG_RULE_ATTR_MAX + 1] = [NL80211_ATTR_FREQ_RANGE_MAX_BW] = { .type = NLA_U32 }, [NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN] = { .type = NLA_U32 }, [NL80211_ATTR_POWER_RULE_MAX_EIRP] = { .type = NLA_U32 }, + [NL80211_ATTR_DFS_CAC_TIME] = { .type = NLA_U32 }, }; static int parse_reg_rule(struct nlattr *tb[], @@ -4625,12 +4703,15 @@ static int parse_reg_rule(struct nlattr *tb[], power_rule->max_antenna_gain = nla_get_u32(tb[NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN]); + if (tb[NL80211_ATTR_DFS_CAC_TIME]) + reg_rule->dfs_cac_ms = + nla_get_u32(tb[NL80211_ATTR_DFS_CAC_TIME]); + return 0; } static int nl80211_req_set_reg(struct sk_buff *skb, struct genl_info *info) { - int r; char *data = NULL; enum nl80211_user_reg_hint_type user_reg_hint_type; @@ -4643,11 +4724,6 @@ static int nl80211_req_set_reg(struct sk_buff *skb, struct genl_info *info) if (unlikely(!rcu_access_pointer(cfg80211_regdomain))) return -EINPROGRESS; - if (!info->attrs[NL80211_ATTR_REG_ALPHA2]) - return -EINVAL; - - data = nla_data(info->attrs[NL80211_ATTR_REG_ALPHA2]); - if (info->attrs[NL80211_ATTR_USER_REG_HINT_TYPE]) user_reg_hint_type = nla_get_u32(info->attrs[NL80211_ATTR_USER_REG_HINT_TYPE]); @@ -4657,14 +4733,16 @@ static int nl80211_req_set_reg(struct sk_buff *skb, struct genl_info *info) switch (user_reg_hint_type) { case NL80211_USER_REG_HINT_USER: case NL80211_USER_REG_HINT_CELL_BASE: - break; + if (!info->attrs[NL80211_ATTR_REG_ALPHA2]) + return -EINVAL; + + data = nla_data(info->attrs[NL80211_ATTR_REG_ALPHA2]); + return regulatory_hint_user(data, user_reg_hint_type); + case NL80211_USER_REG_HINT_INDOOR: + return regulatory_hint_indoor_user(); default: return -EINVAL; } - - r = regulatory_hint_user(data, user_reg_hint_type); - - return r; } static int nl80211_get_mesh_config(struct sk_buff *skb, @@ -5086,6 +5164,7 @@ static int nl80211_get_reg(struct sk_buff *skb, struct genl_info *info) const struct ieee80211_reg_rule *reg_rule; const struct ieee80211_freq_range *freq_range; const struct ieee80211_power_rule *power_rule; + unsigned int max_bandwidth_khz; reg_rule = ®dom->reg_rules[i]; freq_range = ®_rule->freq_range; @@ -5095,6 +5174,11 @@ static int nl80211_get_reg(struct sk_buff *skb, struct genl_info *info) if (!nl_reg_rule) goto nla_put_failure_rcu; + max_bandwidth_khz = freq_range->max_bandwidth_khz; + if (!max_bandwidth_khz) + max_bandwidth_khz = reg_get_max_bandwidth(regdom, + reg_rule); + if (nla_put_u32(msg, NL80211_ATTR_REG_RULE_FLAGS, reg_rule->flags) || nla_put_u32(msg, NL80211_ATTR_FREQ_RANGE_START, @@ -5102,11 +5186,13 @@ static int nl80211_get_reg(struct sk_buff *skb, struct genl_info *info) nla_put_u32(msg, NL80211_ATTR_FREQ_RANGE_END, freq_range->end_freq_khz) || nla_put_u32(msg, NL80211_ATTR_FREQ_RANGE_MAX_BW, - freq_range->max_bandwidth_khz) || + max_bandwidth_khz) || nla_put_u32(msg, NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN, power_rule->max_antenna_gain) || nla_put_u32(msg, NL80211_ATTR_POWER_RULE_MAX_EIRP, - power_rule->max_eirp)) + power_rule->max_eirp) || + nla_put_u32(msg, NL80211_ATTR_DFS_CAC_TIME, + reg_rule->dfs_cac_ms)) goto nla_put_failure_rcu; nla_nest_end(msg, nl_reg_rule); @@ -5178,9 +5264,11 @@ static int nl80211_set_reg(struct sk_buff *skb, struct genl_info *info) nla_for_each_nested(nl_reg_rule, info->attrs[NL80211_ATTR_REG_RULES], rem_reg_rules) { - nla_parse(tb, NL80211_REG_RULE_ATTR_MAX, - nla_data(nl_reg_rule), nla_len(nl_reg_rule), - reg_rule_policy); + r = nla_parse(tb, NL80211_REG_RULE_ATTR_MAX, + nla_data(nl_reg_rule), nla_len(nl_reg_rule), + reg_rule_policy); + if (r) + goto bad_reg; r = parse_reg_rule(tb, &rd->reg_rules[rule_idx]); if (r) goto bad_reg; @@ -5443,6 +5531,7 @@ static int nl80211_start_sched_scan(struct sk_buff *skb, enum ieee80211_band band; size_t ie_len; 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) @@ -5477,11 +5566,40 @@ static int nl80211_start_sched_scan(struct sk_buff *skb, if (n_ssids > wiphy->max_sched_scan_ssids) return -EINVAL; - if (info->attrs[NL80211_ATTR_SCHED_SCAN_MATCH]) + /* + * First, count the number of 'real' matchsets. Due to an issue with + * the old implementation, matchsets containing only the RSSI attribute + * (NL80211_SCHED_SCAN_MATCH_ATTR_RSSI) are considered as the 'default' + * RSSI for all matchsets, rather than their own matchset for reporting + * all APs with a strong RSSI. This is needed to be compatible with + * 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]) { nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCHED_SCAN_MATCH], - tmp) - n_match_sets++; + tmp) { + struct nlattr *rssi; + + err = nla_parse(tb, NL80211_SCHED_SCAN_MATCH_ATTR_MAX, + nla_data(attr), nla_len(attr), + nl80211_match_policy); + if (err) + return err; + /* add other standalone attributes here */ + if (tb[NL80211_SCHED_SCAN_MATCH_ATTR_SSID]) { + n_match_sets++; + continue; + } + rssi = tb[NL80211_SCHED_SCAN_MATCH_ATTR_RSSI]; + if (rssi) + default_match_rssi = nla_get_s32(rssi); + } + } + + /* However, if there's no other matchset, add the RSSI one */ + if (!n_match_sets && default_match_rssi != NL80211_SCAN_RSSI_THOLD_OFF) + n_match_sets = 1; if (n_match_sets > wiphy->max_match_sets) return -EINVAL; @@ -5602,11 +5720,22 @@ static int nl80211_start_sched_scan(struct sk_buff *skb, tmp) { struct nlattr *ssid, *rssi; - nla_parse(tb, NL80211_SCHED_SCAN_MATCH_ATTR_MAX, - nla_data(attr), nla_len(attr), - nl80211_match_policy); + err = nla_parse(tb, NL80211_SCHED_SCAN_MATCH_ATTR_MAX, + nla_data(attr), nla_len(attr), + nl80211_match_policy); + if (err) + goto out_free; ssid = tb[NL80211_SCHED_SCAN_MATCH_ATTR_SSID]; if (ssid) { + if (WARN_ON(i >= n_match_sets)) { + /* this indicates a programming error, + * the loop above should have verified + * things properly + */ + err = -EINVAL; + goto out_free; + } + if (nla_len(ssid) > IEEE80211_MAX_SSID_LEN) { err = -EINVAL; goto out_free; @@ -5615,19 +5744,32 @@ static int nl80211_start_sched_scan(struct sk_buff *skb, nla_data(ssid), nla_len(ssid)); request->match_sets[i].ssid.ssid_len = nla_len(ssid); + /* special attribute - old implemenation w/a */ + request->match_sets[i].rssi_thold = + default_match_rssi; + rssi = tb[NL80211_SCHED_SCAN_MATCH_ATTR_RSSI]; + if (rssi) + request->match_sets[i].rssi_thold = + nla_get_s32(rssi); } - rssi = tb[NL80211_SCHED_SCAN_MATCH_ATTR_RSSI]; - if (rssi) - request->rssi_thold = nla_get_u32(rssi); - else - request->rssi_thold = - NL80211_SCAN_RSSI_THOLD_OFF; i++; } + + /* there was no other matchset, so the RSSI one is alone */ + if (i == 0) + request->match_sets[0].rssi_thold = default_match_rssi; + + request->min_rssi_thold = INT_MAX; + for (i = 0; i < n_match_sets; i++) + request->min_rssi_thold = + min(request->match_sets[i].rssi_thold, + request->min_rssi_thold); + } else { + request->min_rssi_thold = NL80211_SCAN_RSSI_THOLD_OFF; } - if (info->attrs[NL80211_ATTR_IE]) { - request->ie_len = nla_len(info->attrs[NL80211_ATTR_IE]); + if (ie_len) { + request->ie_len = ie_len; memcpy((void *)request->ie, nla_data(info->attrs[NL80211_ATTR_IE]), request->ie_len); @@ -5682,6 +5824,7 @@ static int nl80211_start_radar_detection(struct sk_buff *skb, struct wireless_dev *wdev = dev->ieee80211_ptr; struct cfg80211_chan_def chandef; enum nl80211_dfs_regions dfs_region; + unsigned int cac_time_ms; int err; dfs_region = reg_get_dfs_region(wdev->wiphy); @@ -5698,7 +5841,8 @@ static int nl80211_start_radar_detection(struct sk_buff *skb, if (wdev->cac_started) return -EBUSY; - err = cfg80211_chandef_dfs_required(wdev->wiphy, &chandef); + err = cfg80211_chandef_dfs_required(wdev->wiphy, &chandef, + wdev->iftype); if (err < 0) return err; @@ -5711,17 +5855,17 @@ static int nl80211_start_radar_detection(struct sk_buff *skb, if (!rdev->ops->start_radar_detection) return -EOPNOTSUPP; - err = cfg80211_can_use_iftype_chan(rdev, wdev, wdev->iftype, - chandef.chan, CHAN_MODE_SHARED, - BIT(chandef.width)); - if (err) - return err; + cac_time_ms = cfg80211_chandef_dfs_cac_time(&rdev->wiphy, &chandef); + if (WARN_ON(!cac_time_ms)) + cac_time_ms = IEEE80211_DFS_MIN_CAC_TIME_MS; - err = rdev->ops->start_radar_detection(&rdev->wiphy, dev, &chandef); + err = rdev->ops->start_radar_detection(&rdev->wiphy, dev, &chandef, + cac_time_ms); if (!err) { - wdev->channel = chandef.chan; + wdev->chandef = chandef; wdev->cac_started = true; wdev->cac_start_time = jiffies; + wdev->cac_time_ms = cac_time_ms; } return err; } @@ -5739,6 +5883,7 @@ static int nl80211_channel_switch(struct sk_buff *skb, struct genl_info *info) u8 radar_detect_width = 0; int err; bool need_new_beacon = false; + int len, i; if (!rdev->ops->channel_switch || !(rdev->wiphy.flags & WIPHY_FLAG_HAS_CHANNEL_SWITCH)) @@ -5751,10 +5896,15 @@ static int nl80211_channel_switch(struct sk_buff *skb, struct genl_info *info) /* useless if AP is not running */ if (!wdev->beacon_interval) - return -EINVAL; + return -ENOTCONN; break; case NL80211_IFTYPE_ADHOC: + if (!wdev->ssid_len) + return -ENOTCONN; + break; case NL80211_IFTYPE_MESH_POINT: + if (!wdev->mesh_id_len) + return -ENOTCONN; break; default: return -EOPNOTSUPP; @@ -5792,26 +5942,55 @@ static int nl80211_channel_switch(struct sk_buff *skb, struct genl_info *info) if (!csa_attrs[NL80211_ATTR_CSA_C_OFF_BEACON]) return -EINVAL; - params.counter_offset_beacon = - nla_get_u16(csa_attrs[NL80211_ATTR_CSA_C_OFF_BEACON]); - if (params.counter_offset_beacon >= params.beacon_csa.tail_len) + len = nla_len(csa_attrs[NL80211_ATTR_CSA_C_OFF_BEACON]); + if (!len || (len % sizeof(u16))) return -EINVAL; - /* sanity check - counters should be the same */ - if (params.beacon_csa.tail[params.counter_offset_beacon] != - params.count) + params.n_counter_offsets_beacon = len / sizeof(u16); + if (rdev->wiphy.max_num_csa_counters && + (params.n_counter_offsets_beacon > + rdev->wiphy.max_num_csa_counters)) return -EINVAL; + params.counter_offsets_beacon = + nla_data(csa_attrs[NL80211_ATTR_CSA_C_OFF_BEACON]); + + /* sanity checks - counters should fit and be the same */ + for (i = 0; i < params.n_counter_offsets_beacon; i++) { + u16 offset = params.counter_offsets_beacon[i]; + + if (offset >= params.beacon_csa.tail_len) + return -EINVAL; + + if (params.beacon_csa.tail[offset] != params.count) + return -EINVAL; + } + if (csa_attrs[NL80211_ATTR_CSA_C_OFF_PRESP]) { - params.counter_offset_presp = - nla_get_u16(csa_attrs[NL80211_ATTR_CSA_C_OFF_PRESP]); - if (params.counter_offset_presp >= - params.beacon_csa.probe_resp_len) + len = nla_len(csa_attrs[NL80211_ATTR_CSA_C_OFF_PRESP]); + if (!len || (len % sizeof(u16))) return -EINVAL; - if (params.beacon_csa.probe_resp[params.counter_offset_presp] != - params.count) + params.n_counter_offsets_presp = len / sizeof(u16); + if (rdev->wiphy.max_num_csa_counters && + (params.n_counter_offsets_beacon > + rdev->wiphy.max_num_csa_counters)) return -EINVAL; + + params.counter_offsets_presp = + nla_data(csa_attrs[NL80211_ATTR_CSA_C_OFF_PRESP]); + + /* sanity checks - counters should fit and be the same */ + for (i = 0; i < params.n_counter_offsets_presp; i++) { + u16 offset = params.counter_offsets_presp[i]; + + if (offset >= params.beacon_csa.probe_resp_len) + return -EINVAL; + + if (params.beacon_csa.probe_resp[offset] != + params.count) + return -EINVAL; + } } skip_beacons: @@ -5819,29 +5998,21 @@ skip_beacons: if (err) return err; - if (!cfg80211_reg_can_beacon(&rdev->wiphy, ¶ms.chandef)) + if (!cfg80211_reg_can_beacon(&rdev->wiphy, ¶ms.chandef, + wdev->iftype)) return -EINVAL; - if (dev->ieee80211_ptr->iftype == NL80211_IFTYPE_AP || - dev->ieee80211_ptr->iftype == NL80211_IFTYPE_P2P_GO || - dev->ieee80211_ptr->iftype == NL80211_IFTYPE_ADHOC) { - err = cfg80211_chandef_dfs_required(wdev->wiphy, - ¶ms.chandef); - if (err < 0) { - return err; - } else if (err) { - radar_detect_width = BIT(params.chandef.width); - params.radar_required = true; - } - } - - err = cfg80211_can_use_iftype_chan(rdev, wdev, wdev->iftype, - params.chandef.chan, - CHAN_MODE_SHARED, - radar_detect_width); - if (err) + err = cfg80211_chandef_dfs_required(wdev->wiphy, + ¶ms.chandef, + wdev->iftype); + if (err < 0) return err; + if (err > 0) { + radar_detect_width = BIT(params.chandef.width); + params.radar_required = true; + } + if (info->attrs[NL80211_ATTR_CH_SWITCH_BLOCK_TX]) params.block_tx = true; @@ -6061,12 +6232,12 @@ static int nl80211_dump_survey(struct sk_buff *skb, struct netlink_callback *cb) { struct survey_info survey; - struct cfg80211_registered_device *dev; + struct cfg80211_registered_device *rdev; struct wireless_dev *wdev; int survey_idx = cb->args[2]; int res; - res = nl80211_prepare_wdev_dump(skb, cb, &dev, &wdev); + res = nl80211_prepare_wdev_dump(skb, cb, &rdev, &wdev); if (res) return res; @@ -6075,7 +6246,7 @@ static int nl80211_dump_survey(struct sk_buff *skb, goto out_err; } - if (!dev->ops->dump_survey) { + if (!rdev->ops->dump_survey) { res = -EOPNOTSUPP; goto out_err; } @@ -6083,7 +6254,7 @@ static int nl80211_dump_survey(struct sk_buff *skb, while (1) { struct ieee80211_channel *chan; - res = rdev_dump_survey(dev, wdev->netdev, survey_idx, &survey); + res = rdev_dump_survey(rdev, wdev->netdev, survey_idx, &survey); if (res == -ENOENT) break; if (res) @@ -6095,7 +6266,7 @@ static int nl80211_dump_survey(struct sk_buff *skb, goto out; } - chan = ieee80211_get_channel(&dev->wiphy, + chan = ieee80211_get_channel(&rdev->wiphy, survey.channel->center_freq); if (!chan || chan->flags & IEEE80211_CHAN_DISABLED) { survey_idx++; @@ -6114,7 +6285,7 @@ static int nl80211_dump_survey(struct sk_buff *skb, cb->args[2] = survey_idx; res = skb->len; out_err: - nl80211_finish_wdev_dump(dev); + nl80211_finish_wdev_dump(rdev); return res; } @@ -6192,9 +6363,9 @@ static int nl80211_authenticate(struct sk_buff *skb, struct genl_info *info) return -EOPNOTSUPP; bssid = nla_data(info->attrs[NL80211_ATTR_MAC]); - chan = ieee80211_get_channel(&rdev->wiphy, - nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ])); - if (!chan || (chan->flags & IEEE80211_CHAN_DISABLED)) + chan = nl80211_get_valid_chan(&rdev->wiphy, + info->attrs[NL80211_ATTR_WIPHY_FREQ]); + if (!chan) return -EINVAL; ssid = nla_data(info->attrs[NL80211_ATTR_SSID]); @@ -6347,9 +6518,9 @@ static int nl80211_associate(struct sk_buff *skb, struct genl_info *info) bssid = nla_data(info->attrs[NL80211_ATTR_MAC]); - chan = ieee80211_get_channel(&rdev->wiphy, - nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ])); - if (!chan || (chan->flags & IEEE80211_CHAN_DISABLED)) + chan = nl80211_get_valid_chan(&rdev->wiphy, + info->attrs[NL80211_ATTR_WIPHY_FREQ]); + if (!chan) return -EINVAL; ssid = nla_data(info->attrs[NL80211_ATTR_SSID]); @@ -6590,7 +6761,8 @@ static int nl80211_join_ibss(struct sk_buff *skb, struct genl_info *info) if (err) return err; - if (!cfg80211_reg_can_beacon(&rdev->wiphy, &ibss.chandef)) + if (!cfg80211_reg_can_beacon(&rdev->wiphy, &ibss.chandef, + NL80211_IFTYPE_ADHOC)) return -EINVAL; switch (ibss.chandef.width) { @@ -6765,7 +6937,7 @@ struct sk_buff *__cfg80211_alloc_event_skb(struct wiphy *wiphy, int vendor_event_idx, int approxlen, gfp_t gfp) { - struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy); + struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy); const struct nl80211_vendor_cmd_info *info; switch (cmd) { @@ -6797,6 +6969,9 @@ void __cfg80211_send_event_skb(struct sk_buff *skb, gfp_t gfp) struct nlattr *data = ((void **)skb->cb)[2]; enum nl80211_multicast_groups mcgrp = NL80211_MCGRP_TESTMODE; + /* clear CB data for netlink core to own from now on */ + memset(skb->cb, 0, sizeof(skb->cb)); + nla_nest_end(skb, data); genlmsg_end(skb, hdr); @@ -6985,6 +7160,9 @@ static int nl80211_connect(struct sk_buff *skb, struct genl_info *info) if (info->attrs[NL80211_ATTR_MAC]) connect.bssid = nla_data(info->attrs[NL80211_ATTR_MAC]); + else if (info->attrs[NL80211_ATTR_MAC_HINT]) + connect.bssid_hint = + nla_data(info->attrs[NL80211_ATTR_MAC_HINT]); connect.ssid = nla_data(info->attrs[NL80211_ATTR_SSID]); connect.ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]); @@ -7003,11 +7181,14 @@ static int nl80211_connect(struct sk_buff *skb, struct genl_info *info) } if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) { - connect.channel = - ieee80211_get_channel(wiphy, - nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ])); - if (!connect.channel || - connect.channel->flags & IEEE80211_CHAN_DISABLED) + connect.channel = nl80211_get_valid_chan( + wiphy, info->attrs[NL80211_ATTR_WIPHY_FREQ]); + if (!connect.channel) + return -EINVAL; + } else if (info->attrs[NL80211_ATTR_WIPHY_FREQ_HINT]) { + connect.channel_hint = nl80211_get_valid_chan( + wiphy, info->attrs[NL80211_ATTR_WIPHY_FREQ_HINT]); + if (!connect.channel_hint) return -EINVAL; } @@ -7174,8 +7355,10 @@ static int nl80211_tdls_mgmt(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 action_code, dialog_token; + u32 peer_capability = 0; u16 status_code; u8 *peer; + bool initiator; if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) || !rdev->ops->tdls_mgmt) @@ -7192,9 +7375,14 @@ static int nl80211_tdls_mgmt(struct sk_buff *skb, struct genl_info *info) action_code = nla_get_u8(info->attrs[NL80211_ATTR_TDLS_ACTION]); status_code = nla_get_u16(info->attrs[NL80211_ATTR_STATUS_CODE]); dialog_token = nla_get_u8(info->attrs[NL80211_ATTR_TDLS_DIALOG_TOKEN]); + initiator = nla_get_flag(info->attrs[NL80211_ATTR_TDLS_INITIATOR]); + if (info->attrs[NL80211_ATTR_TDLS_PEER_CAPABILITY]) + peer_capability = + nla_get_u32(info->attrs[NL80211_ATTR_TDLS_PEER_CAPABILITY]); return rdev_tdls_mgmt(rdev, dev, peer, action_code, - dialog_token, status_code, + dialog_token, status_code, peer_capability, + initiator, nla_data(info->attrs[NL80211_ATTR_IE]), nla_len(info->attrs[NL80211_ATTR_IE])); } @@ -7421,6 +7609,7 @@ static const struct nla_policy nl80211_txattr_policy[NL80211_TXRATE_MAX + 1] = { [NL80211_TXRATE_HT] = { .type = NLA_BINARY, .len = NL80211_MAX_SUPP_HT_RATES }, [NL80211_TXRATE_VHT] = { .len = sizeof(struct nl80211_txrate_vht)}, + [NL80211_TXRATE_GI] = { .type = NLA_U8 }, }; static int nl80211_set_tx_bitrate_mask(struct sk_buff *skb, @@ -7467,16 +7656,19 @@ static int nl80211_set_tx_bitrate_mask(struct sk_buff *skb, * directly to the enum ieee80211_band values used in cfg80211. */ BUILD_BUG_ON(NL80211_MAX_SUPP_HT_RATES > IEEE80211_HT_MCS_MASK_LEN * 8); - nla_for_each_nested(tx_rates, info->attrs[NL80211_ATTR_TX_RATES], rem) - { + nla_for_each_nested(tx_rates, info->attrs[NL80211_ATTR_TX_RATES], rem) { enum ieee80211_band band = nla_type(tx_rates); + int err; + if (band < 0 || band >= IEEE80211_NUM_BANDS) return -EINVAL; sband = rdev->wiphy.bands[band]; if (sband == NULL) return -EINVAL; - nla_parse(tb, NL80211_TXRATE_MAX, nla_data(tx_rates), - nla_len(tx_rates), nl80211_txattr_policy); + err = nla_parse(tb, NL80211_TXRATE_MAX, nla_data(tx_rates), + nla_len(tx_rates), nl80211_txattr_policy); + if (err) + return err; if (tb[NL80211_TXRATE_LEGACY]) { mask.control[band].legacy = rateset_to_mask( sband, @@ -7501,6 +7693,12 @@ static int nl80211_set_tx_bitrate_mask(struct sk_buff *skb, mask.control[band].vht_mcs)) return -EINVAL; } + if (tb[NL80211_TXRATE_GI]) { + mask.control[band].gi = + nla_get_u8(tb[NL80211_TXRATE_GI]); + if (mask.control[band].gi > NL80211_TXRATE_FORCE_LGI) + return -EINVAL; + } if (mask.control[band].legacy == 0) { /* don't allow empty legacy rates if HT or VHT @@ -7633,6 +7831,27 @@ static int nl80211_tx_mgmt(struct sk_buff *skb, struct genl_info *info) if (!chandef.chan && params.offchan) return -EINVAL; + params.buf = nla_data(info->attrs[NL80211_ATTR_FRAME]); + params.len = nla_len(info->attrs[NL80211_ATTR_FRAME]); + + if (info->attrs[NL80211_ATTR_CSA_C_OFFSETS_TX]) { + int len = nla_len(info->attrs[NL80211_ATTR_CSA_C_OFFSETS_TX]); + int i; + + if (len % sizeof(u16)) + return -EINVAL; + + params.n_csa_offsets = len / sizeof(u16); + params.csa_offsets = + nla_data(info->attrs[NL80211_ATTR_CSA_C_OFFSETS_TX]); + + /* check that all the offsets fit the frame */ + for (i = 0; i < params.n_csa_offsets; i++) { + if (params.csa_offsets[i] >= params.len) + return -EINVAL; + } + } + if (!params.dont_wait_for_ack) { msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); if (!msg) @@ -7646,8 +7865,6 @@ static int nl80211_tx_mgmt(struct sk_buff *skb, struct genl_info *info) } } - params.buf = nla_data(info->attrs[NL80211_ATTR_FRAME]); - params.len = nla_len(info->attrs[NL80211_ATTR_FRAME]); params.chan = chandef.chan; err = cfg80211_mlme_mgmt_tx(rdev, wdev, ¶ms, &cookie); if (err) @@ -7777,8 +7994,8 @@ static int nl80211_get_power_save(struct sk_buff *skb, struct genl_info *info) return err; } -static struct nla_policy -nl80211_attr_cqm_policy[NL80211_ATTR_CQM_MAX + 1] __read_mostly = { +static const struct nla_policy +nl80211_attr_cqm_policy[NL80211_ATTR_CQM_MAX + 1] = { [NL80211_ATTR_CQM_RSSI_THOLD] = { .type = NLA_U32 }, [NL80211_ATTR_CQM_RSSI_HYST] = { .type = NLA_U32 }, [NL80211_ATTR_CQM_RSSI_THRESHOLD_EVENT] = { .type = NLA_U32 }, @@ -8344,6 +8561,8 @@ static int nl80211_set_wowlan(struct sk_buff *skb, struct genl_info *info) nla_for_each_nested(pat, tb[NL80211_WOWLAN_TRIG_PKT_PATTERN], rem) { + u8 *mask_pat; + nla_parse(pat_tb, MAX_NL80211_PKTPAT, nla_data(pat), nla_len(pat), NULL); err = -EINVAL; @@ -8367,19 +8586,18 @@ static int nl80211_set_wowlan(struct sk_buff *skb, struct genl_info *info) goto error; new_triggers.patterns[i].pkt_offset = pkt_offset; - new_triggers.patterns[i].mask = - kmalloc(mask_len + pat_len, GFP_KERNEL); - if (!new_triggers.patterns[i].mask) { + mask_pat = kmalloc(mask_len + pat_len, GFP_KERNEL); + if (!mask_pat) { err = -ENOMEM; goto error; } - new_triggers.patterns[i].pattern = - new_triggers.patterns[i].mask + mask_len; - memcpy(new_triggers.patterns[i].mask, - nla_data(pat_tb[NL80211_PKTPAT_MASK]), + new_triggers.patterns[i].mask = mask_pat; + memcpy(mask_pat, nla_data(pat_tb[NL80211_PKTPAT_MASK]), mask_len); + mask_pat += mask_len; + new_triggers.patterns[i].pattern = mask_pat; new_triggers.patterns[i].pattern_len = pat_len; - memcpy(new_triggers.patterns[i].pattern, + memcpy(mask_pat, nla_data(pat_tb[NL80211_PKTPAT_PATTERN]), pat_len); i++; @@ -8571,6 +8789,8 @@ static int nl80211_parse_coalesce_rule(struct cfg80211_registered_device *rdev, nla_for_each_nested(pat, tb[NL80211_ATTR_COALESCE_RULE_PKT_PATTERN], rem) { + u8 *mask_pat; + nla_parse(pat_tb, MAX_NL80211_PKTPAT, nla_data(pat), nla_len(pat), NULL); if (!pat_tb[NL80211_PKTPAT_MASK] || @@ -8592,17 +8812,19 @@ static int nl80211_parse_coalesce_rule(struct cfg80211_registered_device *rdev, return -EINVAL; new_rule->patterns[i].pkt_offset = pkt_offset; - new_rule->patterns[i].mask = - kmalloc(mask_len + pat_len, GFP_KERNEL); - if (!new_rule->patterns[i].mask) + mask_pat = kmalloc(mask_len + pat_len, GFP_KERNEL); + if (!mask_pat) return -ENOMEM; - new_rule->patterns[i].pattern = - new_rule->patterns[i].mask + mask_len; - memcpy(new_rule->patterns[i].mask, - nla_data(pat_tb[NL80211_PKTPAT_MASK]), mask_len); + + new_rule->patterns[i].mask = mask_pat; + memcpy(mask_pat, nla_data(pat_tb[NL80211_PKTPAT_MASK]), + mask_len); + + mask_pat += mask_len; + new_rule->patterns[i].pattern = mask_pat; new_rule->patterns[i].pattern_len = pat_len; - memcpy(new_rule->patterns[i].pattern, - nla_data(pat_tb[NL80211_PKTPAT_PATTERN]), pat_len); + memcpy(mask_pat, nla_data(pat_tb[NL80211_PKTPAT_PATTERN]), + pat_len); i++; } @@ -8847,9 +9069,8 @@ static int nl80211_start_p2p_device(struct sk_buff *skb, struct genl_info *info) if (wdev->p2p_started) return 0; - err = cfg80211_can_add_interface(rdev, wdev->iftype); - if (err) - return err; + if (rfkill_blocked(rdev->rfkill)) + return -ERFKILL; err = rdev_start_p2p_device(rdev, wdev); if (err) @@ -9058,7 +9279,7 @@ struct sk_buff *__cfg80211_alloc_reply_skb(struct wiphy *wiphy, enum nl80211_attrs attr, int approxlen) { - struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy); + struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy); if (WARN_ON(!rdev->cur_cmd_info)) return NULL; @@ -9076,6 +9297,9 @@ int cfg80211_vendor_cmd_reply(struct sk_buff *skb) void *hdr = ((void **)skb->cb)[1]; struct nlattr *data = ((void **)skb->cb)[2]; + /* clear CB data for netlink core to own from now on */ + memset(skb->cb, 0, sizeof(skb->cb)); + if (WARN_ON(!rdev->cur_cmd_info)) { kfree_skb(skb); return -EINVAL; @@ -9182,7 +9406,7 @@ static int nl80211_pre_doit(const struct genl_ops *ops, struct sk_buff *skb, } dev = wdev->netdev; - rdev = wiphy_to_dev(wdev->wiphy); + rdev = wiphy_to_rdev(wdev->wiphy); if (ops->internal_flags & NL80211_FLAG_NEED_NETDEV) { if (!dev) { @@ -9883,16 +10107,20 @@ static const struct genl_ops nl80211_ops[] = { /* notification functions */ -void nl80211_notify_dev_rename(struct cfg80211_registered_device *rdev) +void nl80211_notify_wiphy(struct cfg80211_registered_device *rdev, + enum nl80211_commands cmd) { struct sk_buff *msg; struct nl80211_dump_wiphy_state state = {}; + WARN_ON(cmd != NL80211_CMD_NEW_WIPHY && + cmd != NL80211_CMD_DEL_WIPHY); + msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); if (!msg) return; - if (nl80211_send_wiphy(rdev, msg, 0, 0, 0, &state) < 0) { + if (nl80211_send_wiphy(rdev, cmd, msg, 0, 0, 0, &state) < 0) { nlmsg_free(msg); return; } @@ -10211,7 +10439,7 @@ void cfg80211_rx_unprot_mlme_mgmt(struct net_device *dev, const u8 *buf, { struct wireless_dev *wdev = dev->ieee80211_ptr; struct wiphy *wiphy = wdev->wiphy; - struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy); + struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy); const struct ieee80211_mgmt *mgmt = (void *)buf; u32 cmd; @@ -10433,7 +10661,7 @@ void cfg80211_notify_new_peer_candidate(struct net_device *dev, const u8 *addr, const u8* ie, u8 ie_len, gfp_t gfp) { struct wireless_dev *wdev = dev->ieee80211_ptr; - struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy); + struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy); struct sk_buff *msg; void *hdr; @@ -10613,7 +10841,7 @@ void cfg80211_ready_on_channel(struct wireless_dev *wdev, u64 cookie, unsigned int duration, gfp_t gfp) { struct wiphy *wiphy = wdev->wiphy; - struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy); + struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy); trace_cfg80211_ready_on_channel(wdev, cookie, chan, duration); nl80211_send_remain_on_chan_event(NL80211_CMD_REMAIN_ON_CHANNEL, @@ -10627,7 +10855,7 @@ void cfg80211_remain_on_channel_expired(struct wireless_dev *wdev, u64 cookie, gfp_t gfp) { struct wiphy *wiphy = wdev->wiphy; - struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy); + struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy); trace_cfg80211_ready_on_channel_expired(wdev, cookie, chan); nl80211_send_remain_on_chan_event(NL80211_CMD_CANCEL_REMAIN_ON_CHANNEL, @@ -10639,7 +10867,7 @@ void cfg80211_new_sta(struct net_device *dev, const u8 *mac_addr, struct station_info *sinfo, gfp_t gfp) { struct wiphy *wiphy = dev->ieee80211_ptr->wiphy; - struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy); + struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy); struct sk_buff *msg; trace_cfg80211_new_sta(dev, mac_addr, sinfo); @@ -10662,7 +10890,7 @@ EXPORT_SYMBOL(cfg80211_new_sta); void cfg80211_del_sta(struct net_device *dev, const u8 *mac_addr, gfp_t gfp) { struct wiphy *wiphy = dev->ieee80211_ptr->wiphy; - struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy); + struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy); struct sk_buff *msg; void *hdr; @@ -10699,7 +10927,7 @@ void cfg80211_conn_failed(struct net_device *dev, const u8 *mac_addr, gfp_t gfp) { struct wiphy *wiphy = dev->ieee80211_ptr->wiphy; - struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy); + struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy); struct sk_buff *msg; void *hdr; @@ -10734,7 +10962,7 @@ static bool __nl80211_unexpected_frame(struct net_device *dev, u8 cmd, const u8 *addr, gfp_t gfp) { struct wireless_dev *wdev = dev->ieee80211_ptr; - struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy); + struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy); struct sk_buff *msg; void *hdr; u32 nlportid = ACCESS_ONCE(wdev->ap_unexpected_nlportid); @@ -10854,7 +11082,7 @@ void cfg80211_mgmt_tx_status(struct wireless_dev *wdev, u64 cookie, const u8 *buf, size_t len, bool ack, gfp_t gfp) { struct wiphy *wiphy = wdev->wiphy; - struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy); + struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy); struct net_device *netdev = wdev->netdev; struct sk_buff *msg; void *hdr; @@ -10898,7 +11126,7 @@ void cfg80211_cqm_rssi_notify(struct net_device *dev, { struct wireless_dev *wdev = dev->ieee80211_ptr; struct wiphy *wiphy = wdev->wiphy; - struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy); + struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy); struct sk_buff *msg; struct nlattr *pinfoattr; void *hdr; @@ -10990,7 +11218,7 @@ void cfg80211_gtk_rekey_notify(struct net_device *dev, const u8 *bssid, { struct wireless_dev *wdev = dev->ieee80211_ptr; struct wiphy *wiphy = wdev->wiphy; - struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy); + struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy); trace_cfg80211_gtk_rekey_notify(dev, bssid); nl80211_gtk_rekey_notify(rdev, dev, bssid, replay_ctr, gfp); @@ -11048,7 +11276,7 @@ void cfg80211_pmksa_candidate_notify(struct net_device *dev, int index, { struct wireless_dev *wdev = dev->ieee80211_ptr; struct wiphy *wiphy = wdev->wiphy; - struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy); + struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy); trace_cfg80211_pmksa_candidate_notify(dev, index, bssid, preauth); nl80211_pmksa_candidate_notify(rdev, dev, index, bssid, preauth, gfp); @@ -11095,7 +11323,7 @@ void cfg80211_ch_switch_notify(struct net_device *dev, { struct wireless_dev *wdev = dev->ieee80211_ptr; struct wiphy *wiphy = wdev->wiphy; - struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy); + struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy); ASSERT_WDEV_LOCK(wdev); @@ -11107,7 +11335,8 @@ void cfg80211_ch_switch_notify(struct net_device *dev, wdev->iftype != NL80211_IFTYPE_MESH_POINT)) return; - wdev->channel = chandef->chan; + wdev->chandef = *chandef; + wdev->preset_chandef = *chandef; nl80211_ch_switch_notify(rdev, dev, chandef, GFP_KERNEL); } EXPORT_SYMBOL(cfg80211_ch_switch_notify); @@ -11118,7 +11347,7 @@ void cfg80211_cqm_txe_notify(struct net_device *dev, { struct wireless_dev *wdev = dev->ieee80211_ptr; struct wiphy *wiphy = wdev->wiphy; - struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy); + struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy); struct sk_buff *msg; struct nlattr *pinfoattr; void *hdr; @@ -11218,7 +11447,7 @@ void cfg80211_cqm_pktloss_notify(struct net_device *dev, { struct wireless_dev *wdev = dev->ieee80211_ptr; struct wiphy *wiphy = wdev->wiphy; - struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy); + struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy); struct sk_buff *msg; struct nlattr *pinfoattr; void *hdr; @@ -11265,7 +11494,7 @@ void cfg80211_probe_status(struct net_device *dev, const u8 *addr, u64 cookie, bool acked, gfp_t gfp) { struct wireless_dev *wdev = dev->ieee80211_ptr; - struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy); + struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy); struct sk_buff *msg; void *hdr; @@ -11305,7 +11534,7 @@ void cfg80211_report_obss_beacon(struct wiphy *wiphy, const u8 *frame, size_t len, int freq, int sig_dbm) { - struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy); + struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy); struct sk_buff *msg; void *hdr; struct cfg80211_beacon_registration *reg; @@ -11352,7 +11581,7 @@ void cfg80211_report_wowlan_wakeup(struct wireless_dev *wdev, struct cfg80211_wowlan_wakeup *wakeup, gfp_t gfp) { - struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy); + struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy); struct sk_buff *msg; void *hdr; int size = 200; @@ -11462,7 +11691,7 @@ void cfg80211_tdls_oper_request(struct net_device *dev, const u8 *peer, u16 reason_code, gfp_t gfp) { struct wireless_dev *wdev = dev->ieee80211_ptr; - struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy); + struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy); struct sk_buff *msg; void *hdr; @@ -11514,9 +11743,15 @@ static int nl80211_netlink_notify(struct notifier_block * nb, rcu_read_lock(); list_for_each_entry_rcu(rdev, &cfg80211_rdev_list, list) { - list_for_each_entry_rcu(wdev, &rdev->wdev_list, list) + bool schedule_destroy_work = false; + + list_for_each_entry_rcu(wdev, &rdev->wdev_list, list) { cfg80211_mlme_unregister_socket(wdev, notify->portid); + if (wdev->owner_nlportid == notify->portid) + schedule_destroy_work = true; + } + spin_lock_bh(&rdev->beacon_registrations_lock); list_for_each_entry_safe(reg, tmp, &rdev->beacon_registrations, list) { @@ -11527,11 +11762,24 @@ static int nl80211_netlink_notify(struct notifier_block * nb, } } spin_unlock_bh(&rdev->beacon_registrations_lock); + + if (schedule_destroy_work) { + struct cfg80211_iface_destroy *destroy; + + destroy = kzalloc(sizeof(*destroy), GFP_ATOMIC); + if (destroy) { + destroy->nlportid = notify->portid; + spin_lock(&rdev->destroy_list_lock); + list_add(&destroy->list, &rdev->destroy_list); + spin_unlock(&rdev->destroy_list_lock); + schedule_work(&rdev->destroy_work); + } + } } rcu_read_unlock(); - return NOTIFY_DONE; + return NOTIFY_OK; } static struct notifier_block nl80211_netlink_notifier = { @@ -11542,7 +11790,7 @@ 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 cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy); struct sk_buff *msg; void *hdr; @@ -11589,7 +11837,7 @@ void cfg80211_crit_proto_stopped(struct wireless_dev *wdev, gfp_t gfp) void *hdr; u32 nlportid; - rdev = wiphy_to_dev(wdev->wiphy); + rdev = wiphy_to_rdev(wdev->wiphy); if (!rdev->crit_proto_nlportid) return; @@ -11621,6 +11869,35 @@ void cfg80211_crit_proto_stopped(struct wireless_dev *wdev, gfp_t gfp) } EXPORT_SYMBOL(cfg80211_crit_proto_stopped); +void nl80211_send_ap_stopped(struct wireless_dev *wdev) +{ + struct wiphy *wiphy = wdev->wiphy; + struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy); + struct sk_buff *msg; + void *hdr; + + msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); + if (!msg) + return; + + hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_STOP_AP); + if (!hdr) + goto out; + + if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) || + nla_put_u32(msg, NL80211_ATTR_IFINDEX, wdev->netdev->ifindex) || + nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev))) + goto out; + + genlmsg_end(msg, hdr); + + genlmsg_multicast_netns(&nl80211_fam, wiphy_net(wiphy), msg, 0, + NL80211_MCGRP_MLME, GFP_KERNEL); + return; + out: + nlmsg_free(msg); +} + /* initialisation/exit functions */ int nl80211_init(void) |