| From: Sven Eckelmann <sven.eckelmann@openmesh.com> |
| Date: Thu, 11 May 2017 08:21:45 +0200 |
| Subject: [PATCH] set mcast_rate in mesh mode |
| |
| The wpa_supplicant code for IBSS allows to set the mcast rate. It is |
| recommended to increase this value from 1 or 6 Mbit/s to something higher |
| when using a mesh protocol on top which uses the multicast packet loss as |
| indicator for the link quality. |
| |
| This setting was unfortunately not applied for mesh mode. But it would be |
| beneficial when wpa_supplicant would behave similar to IBSS mode and set |
| this argument during mesh join like authsae already does. At least it is |
| helpful for companies/projects which are currently switching to 802.11s |
| (without mesh_fwding and with mesh_ttl set to 1) as replacement for IBSS |
| because newer drivers seem to support 802.11s but not IBSS anymore. |
| |
| Signed-off-by: Sven Eckelmann <sven.eckelmann@openmesh.com> |
| Tested-by: Simon Wunderlich <simon.wunderlich@openmesh.com> |
| |
| --- a/src/drivers/driver.h |
| +++ b/src/drivers/driver.h |
| @@ -1661,6 +1661,7 @@ struct wpa_driver_mesh_join_params { |
| #define WPA_DRIVER_MESH_FLAG_AMPE 0x00000008 |
| unsigned int flags; |
| bool handle_dfs; |
| + int mcast_rate; |
| }; |
| |
| struct wpa_driver_set_key_params { |
| --- a/src/drivers/driver_nl80211.c |
| +++ b/src/drivers/driver_nl80211.c |
| @@ -10627,6 +10627,18 @@ static int nl80211_put_mesh_id(struct nl |
| } |
| |
| |
| +static int nl80211_put_mcast_rate(struct nl_msg *msg, int mcast_rate) |
| +{ |
| + if (mcast_rate > 0) { |
| + wpa_printf(MSG_DEBUG, " * mcast_rate=%.1f", |
| + (double)mcast_rate / 10); |
| + return nla_put_u32(msg, NL80211_ATTR_MCAST_RATE, mcast_rate); |
| + } |
| + |
| + return 0; |
| +} |
| + |
| + |
| static int nl80211_put_mesh_config(struct nl_msg *msg, |
| struct wpa_driver_mesh_bss_params *params) |
| { |
| @@ -10688,6 +10700,7 @@ static int nl80211_join_mesh(struct i802 |
| nl80211_put_basic_rates(msg, params->basic_rates) || |
| nl80211_put_mesh_id(msg, params->meshid, params->meshid_len) || |
| nl80211_put_beacon_int(msg, params->beacon_int) || |
| + nl80211_put_mcast_rate(msg, params->mcast_rate) || |
| nl80211_put_dtim_period(msg, params->dtim_period)) |
| goto fail; |
| |
| --- a/wpa_supplicant/mesh.c |
| +++ b/wpa_supplicant/mesh.c |
| @@ -632,6 +632,7 @@ int wpa_supplicant_join_mesh(struct wpa_ |
| |
| params->meshid = ssid->ssid; |
| params->meshid_len = ssid->ssid_len; |
| + params->mcast_rate = ssid->mcast_rate; |
| ibss_mesh_setup_freq(wpa_s, ssid, ¶ms->freq); |
| wpa_s->mesh_ht_enabled = !!params->freq.ht_enabled; |
| wpa_s->mesh_vht_enabled = !!params->freq.vht_enabled; |