package/network/services/hostapd/patches/463-add-mcast_rate-to-11s.patch

   1 From: Sven Eckelmann <sven.eckelmann@openmesh.com>
   2 Date: Thu, 11 May 2017 08:21:45 +0200
   3 Subject: [PATCH] set mcast_rate in mesh mode
   4
   5 The wpa_supplicant code for IBSS allows to set the mcast rate. It is
   6 recommended to increase this value from 1 or 6 Mbit/s to something higher
   7 when using a mesh protocol on top which uses the multicast packet loss as
   8 indicator for the link quality.
   9
  10 This setting was unfortunately not applied for mesh mode. But it would be
  11 beneficial when wpa_supplicant would behave similar to IBSS mode and set
  12 this argument during mesh join like authsae already does. At least it is
  13 helpful for companies/projects which are currently switching to 802.11s
  14 (without mesh_fwding and with mesh_ttl set to 1) as replacement for IBSS
  15 because newer drivers seem to support 802.11s but not IBSS anymore.
  16
  17 Signed-off-by: Sven Eckelmann <sven.eckelmann@openmesh.com>
  18 Tested-by: Simon Wunderlich <simon.wunderlich@openmesh.com>
  19
  20 --- a/src/drivers/driver.h
  21 +++ b/src/drivers/driver.h
  22 @@ -1546,6 +1546,7 @@ struct wpa_driver_mesh_join_params {
  23  #define WPA_DRIVER_MESH_FLAG_SAE_AUTH  0x00000004
  24  #define WPA_DRIVER_MESH_FLAG_AMPE      0x00000008
  25         unsigned int flags;
  26 +       int mcast_rate;
  27  };
  28
  29  struct wpa_driver_set_key_params {
  30 --- a/src/drivers/driver_nl80211.c
  31 +++ b/src/drivers/driver_nl80211.c
  32 @@ -9959,6 +9959,18 @@ static int nl80211_put_mesh_id(struct nl
  33  }
  34
  35
  36 +static int nl80211_put_mcast_rate(struct nl_msg *msg, int mcast_rate)
  37 +{
  38 +       if (mcast_rate > 0) {
  39 +               wpa_printf(MSG_DEBUG, "  * mcast_rate=%.1f",
  40 +                          (double)mcast_rate / 10);
  41 +               return nla_put_u32(msg, NL80211_ATTR_MCAST_RATE, mcast_rate);
  42 +       }
  43 +
  44 +       return 0;
  45 +}
  46 +
  47 +
  48  static int nl80211_put_mesh_config(struct nl_msg *msg,
  49                                    struct wpa_driver_mesh_bss_params *params)
  50  {
  51 @@ -10017,6 +10029,7 @@ static int nl80211_join_mesh(struct i802
  52             nl80211_put_basic_rates(msg, params->basic_rates) ||
  53             nl80211_put_mesh_id(msg, params->meshid, params->meshid_len) ||
  54             nl80211_put_beacon_int(msg, params->beacon_int) ||
  55 +           nl80211_put_mcast_rate(msg, params->mcast_rate) ||
  56             nl80211_put_dtim_period(msg, params->dtim_period))
  57                 goto fail;
  58
  59 --- a/wpa_supplicant/mesh.c
  60 +++ b/wpa_supplicant/mesh.c
  61 @@ -460,6 +460,7 @@ int wpa_supplicant_join_mesh(struct wpa_
  62
  63         params->meshid = ssid->ssid;
  64         params->meshid_len = ssid->ssid_len;
  65 +       params->mcast_rate = ssid->mcast_rate;
  66         ibss_mesh_setup_freq(wpa_s, ssid, &params->freq);
  67         wpa_s->mesh_ht_enabled = !!params->freq.ht_enabled;
  68         wpa_s->mesh_vht_enabled = !!params->freq.vht_enabled;