nl80211: Support splitting wiphy information in dumps
This implements support for the new NL80211_ATTR_SPLIT_WIPHY_DUMP in nl80211 to handle wiphy information that cannot fit in one message. Reviewed-by: Johannes Berg <johannes@sipsolutions.net> Signed-hostap: Dennis H Jensen <dennis.h.jensen@siemens.com>
This commit is contained in:
parent
3b365d4e9a
commit
4324555222
1 changed files with 216 additions and 148 deletions
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@ -2476,6 +2476,42 @@ nla_put_failure:
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}
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static int protocol_feature_handler(struct nl_msg *msg, void *arg)
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{
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u32 *feat = arg;
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struct nlattr *tb_msg[NL80211_ATTR_MAX + 1];
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struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg));
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nla_parse(tb_msg, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0),
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genlmsg_attrlen(gnlh, 0), NULL);
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if (tb_msg[NL80211_ATTR_PROTOCOL_FEATURES])
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*feat = nla_get_u32(tb_msg[NL80211_ATTR_PROTOCOL_FEATURES]);
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return NL_SKIP;
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}
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static u32 get_nl80211_protocol_features(struct wpa_driver_nl80211_data *drv)
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{
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u32 feat = 0;
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struct nl_msg *msg;
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msg = nlmsg_alloc();
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if (!msg)
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goto nla_put_failure;
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nl80211_cmd(drv, msg, 0, NL80211_CMD_GET_PROTOCOL_FEATURES);
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if (send_and_recv_msgs(drv, msg, protocol_feature_handler, &feat) == 0)
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return feat;
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msg = NULL;
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nla_put_failure:
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nlmsg_free(msg);
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return 0;
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}
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struct wiphy_info_data {
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struct wpa_driver_capa *capa;
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@ -2484,6 +2520,12 @@ struct wiphy_info_data {
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unsigned int poll_command_supported:1;
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unsigned int data_tx_status:1;
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unsigned int monitor_supported:1;
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unsigned int auth_supported:1;
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unsigned int connect_supported:1;
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unsigned int p2p_go_supported:1;
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unsigned int p2p_client_supported:1;
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unsigned int p2p_concurrent:1;
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unsigned int p2p_multichan_concurrent:1;
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};
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@ -2509,9 +2551,6 @@ static int wiphy_info_handler(struct nl_msg *msg, void *arg)
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struct nlattr *tb[NL80211_ATTR_MAX + 1];
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struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg));
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struct wiphy_info_data *info = arg;
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int p2p_go_supported = 0, p2p_client_supported = 0;
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int p2p_concurrent = 0, p2p_multichan_concurrent = 0;
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int auth_supported = 0, connect_supported = 0;
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struct wpa_driver_capa *capa = info->capa;
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static struct nla_policy
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iface_combination_policy[NUM_NL80211_IFACE_COMB] = {
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@ -2550,10 +2589,10 @@ static int wiphy_info_handler(struct nl_msg *msg, void *arg)
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capa->flags |= WPA_DRIVER_FLAGS_AP;
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break;
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case NL80211_IFTYPE_P2P_GO:
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p2p_go_supported = 1;
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info->p2p_go_supported = 1;
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break;
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case NL80211_IFTYPE_P2P_CLIENT:
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p2p_client_supported = 1;
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info->p2p_client_supported = 1;
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break;
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case NL80211_IFTYPE_MONITOR:
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info->monitor_supported = 1;
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@ -2610,9 +2649,9 @@ static int wiphy_info_handler(struct nl_msg *msg, void *arg)
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}
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if (combination_has_p2p && combination_has_mgd) {
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p2p_concurrent = 1;
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info->p2p_concurrent = 1;
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if (nla_get_u32(tb_comb[NL80211_IFACE_COMB_NUM_CHANNELS]) > 1)
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p2p_multichan_concurrent = 1;
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info->p2p_multichan_concurrent = 1;
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break;
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}
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@ -2629,10 +2668,10 @@ broken_combination:
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tb[NL80211_ATTR_SUPPORTED_COMMANDS], i) {
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switch (nla_get_u32(nl_cmd)) {
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case NL80211_CMD_AUTHENTICATE:
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auth_supported = 1;
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info->auth_supported = 1;
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break;
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case NL80211_CMD_CONNECT:
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connect_supported = 1;
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info->connect_supported = 1;
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break;
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case NL80211_CMD_START_SCHED_SCAN:
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capa->sched_scan_supported = 1;
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@ -2665,30 +2704,6 @@ broken_combination:
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capa->max_remain_on_chan =
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nla_get_u32(tb[NL80211_ATTR_MAX_REMAIN_ON_CHANNEL_DURATION]);
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if (auth_supported)
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capa->flags |= WPA_DRIVER_FLAGS_SME;
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else if (!connect_supported) {
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wpa_printf(MSG_INFO, "nl80211: Driver does not support "
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"authentication/association or connect commands");
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info->error = 1;
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}
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if (p2p_go_supported && p2p_client_supported)
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capa->flags |= WPA_DRIVER_FLAGS_P2P_CAPABLE;
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if (p2p_concurrent) {
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wpa_printf(MSG_DEBUG, "nl80211: Use separate P2P group "
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"interface (driver advertised support)");
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capa->flags |= WPA_DRIVER_FLAGS_P2P_CONCURRENT;
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capa->flags |= WPA_DRIVER_FLAGS_P2P_MGMT_AND_NON_P2P;
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if (p2p_multichan_concurrent) {
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wpa_printf(MSG_DEBUG, "nl80211: Enable multi-channel "
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"concurrent (driver advertised support)");
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capa->flags |=
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WPA_DRIVER_FLAGS_MULTI_CHANNEL_CONCURRENT;
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}
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}
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if (tb[NL80211_ATTR_TDLS_SUPPORT]) {
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wpa_printf(MSG_DEBUG, "nl80211: TDLS supported");
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capa->flags |= WPA_DRIVER_FLAGS_TDLS_SUPPORT;
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@ -2736,6 +2751,7 @@ broken_combination:
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static int wpa_driver_nl80211_get_info(struct wpa_driver_nl80211_data *drv,
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struct wiphy_info_data *info)
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{
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u32 feat;
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struct nl_msg *msg;
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os_memset(info, 0, sizeof(*info));
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@ -2745,13 +2761,40 @@ static int wpa_driver_nl80211_get_info(struct wpa_driver_nl80211_data *drv,
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if (!msg)
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return -1;
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nl80211_cmd(drv, msg, 0, NL80211_CMD_GET_WIPHY);
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feat = get_nl80211_protocol_features(drv);
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if (feat & NL80211_PROTOCOL_FEATURE_SPLIT_WIPHY_DUMP)
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nl80211_cmd(drv, msg, NLM_F_DUMP, NL80211_CMD_GET_WIPHY);
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else
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nl80211_cmd(drv, msg, 0, NL80211_CMD_GET_WIPHY);
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NLA_PUT_FLAG(msg, NL80211_ATTR_SPLIT_WIPHY_DUMP);
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NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->first_bss.ifindex);
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if (send_and_recv_msgs(drv, msg, wiphy_info_handler, info) == 0)
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return 0;
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msg = NULL;
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if (send_and_recv_msgs(drv, msg, wiphy_info_handler, info))
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return -1;
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if (info->auth_supported)
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drv->capa.flags |= WPA_DRIVER_FLAGS_SME;
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else if (!info->connect_supported) {
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wpa_printf(MSG_INFO, "nl80211: Driver does not support "
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"authentication/association or connect commands");
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info->error = 1;
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}
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if (info->p2p_go_supported && info->p2p_client_supported)
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drv->capa.flags |= WPA_DRIVER_FLAGS_P2P_CAPABLE;
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if (info->p2p_concurrent) {
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wpa_printf(MSG_DEBUG, "nl80211: Use separate P2P group "
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"interface (driver advertised support)");
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drv->capa.flags |= WPA_DRIVER_FLAGS_P2P_CONCURRENT;
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drv->capa.flags |= WPA_DRIVER_FLAGS_P2P_MGMT_AND_NON_P2P;
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}
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if (info->p2p_multichan_concurrent) {
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wpa_printf(MSG_DEBUG, "nl80211: Enable multi-channel "
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"concurrent (driver advertised support)");
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drv->capa.flags |= WPA_DRIVER_FLAGS_MULTI_CHANNEL_CONCURRENT;
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}
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return 0;
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nla_put_failure:
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nlmsg_free(msg);
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return -1;
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@ -4903,6 +4946,7 @@ static int wpa_driver_nl80211_authenticate_retry(
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struct phy_info_arg {
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u16 *num_modes;
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struct hostapd_hw_modes *modes;
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int last_mode, last_chan_idx;
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};
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static int phy_info_handler(struct nl_msg *msg, void *arg)
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@ -4934,7 +4978,7 @@ static int phy_info_handler(struct nl_msg *msg, void *arg)
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struct nlattr *nl_rate;
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int rem_band, rem_freq, rem_rate;
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struct hostapd_hw_modes *mode;
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int idx, mode_is_set;
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int idx;
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nla_parse(tb_msg, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0),
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genlmsg_attrlen(gnlh, 0), NULL);
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@ -4943,19 +4987,23 @@ static int phy_info_handler(struct nl_msg *msg, void *arg)
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return NL_SKIP;
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nla_for_each_nested(nl_band, tb_msg[NL80211_ATTR_WIPHY_BANDS], rem_band) {
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mode = os_realloc_array(phy_info->modes,
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*phy_info->num_modes + 1,
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sizeof(*mode));
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if (!mode)
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return NL_SKIP;
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phy_info->modes = mode;
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if (phy_info->last_mode != nl_band->nla_type) {
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mode = os_realloc_array(phy_info->modes,
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*phy_info->num_modes + 1,
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sizeof(*mode));
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if (!mode)
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return NL_SKIP;
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phy_info->modes = mode;
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mode_is_set = 0;
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mode = &phy_info->modes[*(phy_info->num_modes)];
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memset(mode, 0, sizeof(*mode));
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mode->flags = HOSTAPD_MODE_FLAG_HT_INFO_KNOWN;
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*(phy_info->num_modes) += 1;
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mode = &phy_info->modes[*(phy_info->num_modes)];
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os_memset(mode, 0, sizeof(*mode));
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mode->mode = NUM_HOSTAPD_MODES;
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mode->flags = HOSTAPD_MODE_FLAG_HT_INFO_KNOWN;
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*(phy_info->num_modes) += 1;
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phy_info->last_mode = nl_band->nla_type;
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phy_info->last_chan_idx = 0;
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} else
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mode = &phy_info->modes[*(phy_info->num_modes) - 1];
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nla_parse(tb_band, NL80211_BAND_ATTR_MAX, nla_data(nl_band),
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nla_len(nl_band), NULL);
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@ -4996,112 +5044,125 @@ static int phy_info_handler(struct nl_msg *msg, void *arg)
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os_memcpy(mode->vht_mcs_set, mcs, 8);
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}
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nla_for_each_nested(nl_freq, tb_band[NL80211_BAND_ATTR_FREQS], rem_freq) {
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nla_parse(tb_freq, NL80211_FREQUENCY_ATTR_MAX, nla_data(nl_freq),
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nla_len(nl_freq), freq_policy);
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if (!tb_freq[NL80211_FREQUENCY_ATTR_FREQ])
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continue;
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mode->num_channels++;
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}
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mode->channels = os_calloc(mode->num_channels,
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sizeof(struct hostapd_channel_data));
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if (!mode->channels)
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return NL_SKIP;
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idx = 0;
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nla_for_each_nested(nl_freq, tb_band[NL80211_BAND_ATTR_FREQS], rem_freq) {
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nla_parse(tb_freq, NL80211_FREQUENCY_ATTR_MAX, nla_data(nl_freq),
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nla_len(nl_freq), freq_policy);
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if (!tb_freq[NL80211_FREQUENCY_ATTR_FREQ])
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continue;
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mode->channels[idx].freq = nla_get_u32(tb_freq[NL80211_FREQUENCY_ATTR_FREQ]);
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mode->channels[idx].flag = 0;
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if (!mode_is_set) {
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/* crude heuristic */
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if (mode->channels[idx].freq < 4000)
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mode->mode = HOSTAPD_MODE_IEEE80211B;
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else if (mode->channels[idx].freq > 50000)
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mode->mode = HOSTAPD_MODE_IEEE80211AD;
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else
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mode->mode = HOSTAPD_MODE_IEEE80211A;
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mode_is_set = 1;
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if (tb_band[NL80211_BAND_ATTR_FREQS]) {
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int new_channels = 0;
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struct hostapd_channel_data *channel;
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nla_for_each_nested(nl_freq, tb_band[NL80211_BAND_ATTR_FREQS], rem_freq) {
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nla_parse(tb_freq, NL80211_FREQUENCY_ATTR_MAX,
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nla_data(nl_freq),
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nla_len(nl_freq), freq_policy);
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if (!tb_freq[NL80211_FREQUENCY_ATTR_FREQ])
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continue;
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new_channels++;
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}
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switch (mode->mode) {
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case HOSTAPD_MODE_IEEE80211AD:
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mode->channels[idx].chan =
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(mode->channels[idx].freq - 56160) /
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2160;
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break;
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case HOSTAPD_MODE_IEEE80211A:
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mode->channels[idx].chan =
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mode->channels[idx].freq / 5 - 1000;
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break;
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case HOSTAPD_MODE_IEEE80211B:
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case HOSTAPD_MODE_IEEE80211G:
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if (mode->channels[idx].freq == 2484)
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mode->channels[idx].chan = 14;
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else
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channel = os_realloc_array(mode->channels,
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mode->num_channels + new_channels,
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sizeof(struct hostapd_channel_data));
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if (!channel)
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return NL_SKIP;
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mode->channels = channel;
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mode->num_channels += new_channels;
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idx = phy_info->last_chan_idx;
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nla_for_each_nested(nl_freq, tb_band[NL80211_BAND_ATTR_FREQS], rem_freq) {
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nla_parse(tb_freq, NL80211_FREQUENCY_ATTR_MAX, nla_data(nl_freq),
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nla_len(nl_freq), freq_policy);
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if (!tb_freq[NL80211_FREQUENCY_ATTR_FREQ])
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continue;
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mode->channels[idx].freq = nla_get_u32(tb_freq[NL80211_FREQUENCY_ATTR_FREQ]);
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mode->channels[idx].flag = 0;
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/* mode is not set */
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if (mode->mode >= NUM_HOSTAPD_MODES) {
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/* crude heuristic */
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if (mode->channels[idx].freq < 4000)
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mode->mode = HOSTAPD_MODE_IEEE80211B;
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else if (mode->channels[idx].freq > 50000)
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mode->mode = HOSTAPD_MODE_IEEE80211AD;
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else
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mode->mode = HOSTAPD_MODE_IEEE80211A;
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}
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switch (mode->mode) {
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case HOSTAPD_MODE_IEEE80211AD:
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mode->channels[idx].chan =
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(mode->channels[idx].freq -
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2407) / 5;
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break;
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default:
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break;
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(mode->channels[idx].freq - 56160) /
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2160;
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break;
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case HOSTAPD_MODE_IEEE80211A:
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mode->channels[idx].chan =
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mode->channels[idx].freq / 5 - 1000;
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break;
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case HOSTAPD_MODE_IEEE80211B:
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case HOSTAPD_MODE_IEEE80211G:
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if (mode->channels[idx].freq == 2484)
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mode->channels[idx].chan = 14;
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else
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mode->channels[idx].chan =
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(mode->channels[idx].freq -
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2407) / 5;
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break;
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default:
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break;
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}
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if (tb_freq[NL80211_FREQUENCY_ATTR_DISABLED])
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mode->channels[idx].flag |=
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HOSTAPD_CHAN_DISABLED;
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if (tb_freq[NL80211_FREQUENCY_ATTR_PASSIVE_SCAN])
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mode->channels[idx].flag |=
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HOSTAPD_CHAN_PASSIVE_SCAN;
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if (tb_freq[NL80211_FREQUENCY_ATTR_NO_IBSS])
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mode->channels[idx].flag |=
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HOSTAPD_CHAN_NO_IBSS;
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if (tb_freq[NL80211_FREQUENCY_ATTR_RADAR])
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mode->channels[idx].flag |=
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HOSTAPD_CHAN_RADAR;
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if (tb_freq[NL80211_FREQUENCY_ATTR_MAX_TX_POWER] &&
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!tb_freq[NL80211_FREQUENCY_ATTR_DISABLED])
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mode->channels[idx].max_tx_power =
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nla_get_u32(tb_freq[NL80211_FREQUENCY_ATTR_MAX_TX_POWER]) / 100;
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idx++;
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}
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phy_info->last_chan_idx = idx;
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}
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if (tb_band[NL80211_BAND_ATTR_RATES]) {
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nla_for_each_nested(nl_rate, tb_band[NL80211_BAND_ATTR_RATES], rem_rate) {
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nla_parse(tb_rate, NL80211_BITRATE_ATTR_MAX, nla_data(nl_rate),
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nla_len(nl_rate), rate_policy);
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if (!tb_rate[NL80211_BITRATE_ATTR_RATE])
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continue;
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mode->num_rates++;
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}
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if (tb_freq[NL80211_FREQUENCY_ATTR_DISABLED])
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mode->channels[idx].flag |=
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HOSTAPD_CHAN_DISABLED;
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if (tb_freq[NL80211_FREQUENCY_ATTR_PASSIVE_SCAN])
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mode->channels[idx].flag |=
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HOSTAPD_CHAN_PASSIVE_SCAN;
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if (tb_freq[NL80211_FREQUENCY_ATTR_NO_IBSS])
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mode->channels[idx].flag |=
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HOSTAPD_CHAN_NO_IBSS;
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if (tb_freq[NL80211_FREQUENCY_ATTR_RADAR])
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mode->channels[idx].flag |=
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HOSTAPD_CHAN_RADAR;
|
||||
mode->rates = os_calloc(mode->num_rates, sizeof(int));
|
||||
if (!mode->rates)
|
||||
return NL_SKIP;
|
||||
|
||||
if (tb_freq[NL80211_FREQUENCY_ATTR_MAX_TX_POWER] &&
|
||||
!tb_freq[NL80211_FREQUENCY_ATTR_DISABLED])
|
||||
mode->channels[idx].max_tx_power =
|
||||
nla_get_u32(tb_freq[NL80211_FREQUENCY_ATTR_MAX_TX_POWER]) / 100;
|
||||
idx = 0;
|
||||
|
||||
idx++;
|
||||
}
|
||||
nla_for_each_nested(nl_rate, tb_band[NL80211_BAND_ATTR_RATES], rem_rate) {
|
||||
nla_parse(tb_rate, NL80211_BITRATE_ATTR_MAX, nla_data(nl_rate),
|
||||
nla_len(nl_rate), rate_policy);
|
||||
if (!tb_rate[NL80211_BITRATE_ATTR_RATE])
|
||||
continue;
|
||||
mode->rates[idx] = nla_get_u32(tb_rate[NL80211_BITRATE_ATTR_RATE]);
|
||||
|
||||
nla_for_each_nested(nl_rate, tb_band[NL80211_BAND_ATTR_RATES], rem_rate) {
|
||||
nla_parse(tb_rate, NL80211_BITRATE_ATTR_MAX, nla_data(nl_rate),
|
||||
nla_len(nl_rate), rate_policy);
|
||||
if (!tb_rate[NL80211_BITRATE_ATTR_RATE])
|
||||
continue;
|
||||
mode->num_rates++;
|
||||
}
|
||||
/* crude heuristic */
|
||||
if (mode->mode == HOSTAPD_MODE_IEEE80211B &&
|
||||
mode->rates[idx] > 200)
|
||||
mode->mode = HOSTAPD_MODE_IEEE80211G;
|
||||
|
||||
mode->rates = os_calloc(mode->num_rates, sizeof(int));
|
||||
if (!mode->rates)
|
||||
return NL_SKIP;
|
||||
|
||||
idx = 0;
|
||||
|
||||
nla_for_each_nested(nl_rate, tb_band[NL80211_BAND_ATTR_RATES], rem_rate) {
|
||||
nla_parse(tb_rate, NL80211_BITRATE_ATTR_MAX, nla_data(nl_rate),
|
||||
nla_len(nl_rate), rate_policy);
|
||||
if (!tb_rate[NL80211_BITRATE_ATTR_RATE])
|
||||
continue;
|
||||
mode->rates[idx] = nla_get_u32(tb_rate[NL80211_BITRATE_ATTR_RATE]);
|
||||
|
||||
/* crude heuristic */
|
||||
if (mode->mode == HOSTAPD_MODE_IEEE80211B &&
|
||||
mode->rates[idx] > 200)
|
||||
mode->mode = HOSTAPD_MODE_IEEE80211G;
|
||||
|
||||
idx++;
|
||||
idx++;
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
|
@ -5332,12 +5393,14 @@ static int nl80211_set_ht40_flags(struct wpa_driver_nl80211_data *drv,
|
|||
static struct hostapd_hw_modes *
|
||||
wpa_driver_nl80211_get_hw_feature_data(void *priv, u16 *num_modes, u16 *flags)
|
||||
{
|
||||
u32 feat;
|
||||
struct i802_bss *bss = priv;
|
||||
struct wpa_driver_nl80211_data *drv = bss->drv;
|
||||
struct nl_msg *msg;
|
||||
struct phy_info_arg result = {
|
||||
.num_modes = num_modes,
|
||||
.modes = NULL,
|
||||
.last_mode = -1,
|
||||
};
|
||||
|
||||
*num_modes = 0;
|
||||
|
@ -5347,8 +5410,13 @@ wpa_driver_nl80211_get_hw_feature_data(void *priv, u16 *num_modes, u16 *flags)
|
|||
if (!msg)
|
||||
return NULL;
|
||||
|
||||
nl80211_cmd(drv, msg, 0, NL80211_CMD_GET_WIPHY);
|
||||
feat = get_nl80211_protocol_features(drv);
|
||||
if (feat & NL80211_PROTOCOL_FEATURE_SPLIT_WIPHY_DUMP)
|
||||
nl80211_cmd(drv, msg, NLM_F_DUMP, NL80211_CMD_GET_WIPHY);
|
||||
else
|
||||
nl80211_cmd(drv, msg, 0, NL80211_CMD_GET_WIPHY);
|
||||
|
||||
NLA_PUT_FLAG(msg, NL80211_ATTR_SPLIT_WIPHY_DUMP);
|
||||
NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex);
|
||||
|
||||
if (send_and_recv_msgs(drv, msg, phy_info_handler, &result) == 0) {
|
||||
|
|
Loading…
Reference in a new issue