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From: Sven Eckelmann <sven.eckelmann@openmesh.com>
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Date: Thu, 11 May 2017 08:21:45 +0200
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Subject: [PATCH] set mcast_rate in mesh mode
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The wpa_supplicant code for IBSS allows to set the mcast rate. It is
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recommended to increase this value from 1 or 6 Mbit/s to something higher
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when using a mesh protocol on top which uses the multicast packet loss as
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indicator for the link quality.
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This setting was unfortunately not applied for mesh mode. But it would be
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beneficial when wpa_supplicant would behave similar to IBSS mode and set
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this argument during mesh join like authsae already does. At least it is
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helpful for companies/projects which are currently switching to 802.11s
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(without mesh_fwding and with mesh_ttl set to 1) as replacement for IBSS
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because newer drivers seem to support 802.11s but not IBSS anymore.
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Signed-off-by: Sven Eckelmann <sven.eckelmann@openmesh.com>
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Tested-by: Simon Wunderlich <simon.wunderlich@openmesh.com>
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--- a/src/drivers/driver.h
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+++ b/src/drivers/driver.h
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@@ -1549,6 +1549,7 @@ struct wpa_driver_mesh_join_params {
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#define WPA_DRIVER_MESH_FLAG_AMPE 0x00000008
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unsigned int flags;
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u8 handle_dfs;
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+ int mcast_rate;
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};
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struct wpa_driver_set_key_params {
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--- a/src/drivers/driver_nl80211.c
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+++ b/src/drivers/driver_nl80211.c
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@@ -10026,6 +10026,18 @@ static int nl80211_put_mesh_id(struct nl
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}
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+static int nl80211_put_mcast_rate(struct nl_msg *msg, int mcast_rate)
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+{
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+ if (mcast_rate > 0) {
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+ wpa_printf(MSG_DEBUG, " * mcast_rate=%.1f",
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+ (double)mcast_rate / 10);
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+ return nla_put_u32(msg, NL80211_ATTR_MCAST_RATE, mcast_rate);
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+ }
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+
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+ return 0;
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+}
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+
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+
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static int nl80211_put_mesh_config(struct nl_msg *msg,
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struct wpa_driver_mesh_bss_params *params)
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{
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@@ -10087,6 +10099,7 @@ static int nl80211_join_mesh(struct i802
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nl80211_put_basic_rates(msg, params->basic_rates) ||
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nl80211_put_mesh_id(msg, params->meshid, params->meshid_len) ||
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nl80211_put_beacon_int(msg, params->beacon_int) ||
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+ nl80211_put_mcast_rate(msg, params->mcast_rate) ||
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nl80211_put_dtim_period(msg, params->dtim_period))
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goto fail;
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--- a/wpa_supplicant/mesh.c
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+++ b/wpa_supplicant/mesh.c
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@@ -501,6 +501,7 @@ int wpa_supplicant_join_mesh(struct wpa_
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params->meshid = ssid->ssid;
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params->meshid_len = ssid->ssid_len;
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+ params->mcast_rate = ssid->mcast_rate;
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ibss_mesh_setup_freq(wpa_s, ssid, ¶ms->freq);
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wpa_s->mesh_ht_enabled = !!params->freq.ht_enabled;
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wpa_s->mesh_vht_enabled = !!params->freq.vht_enabled;
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