diff mbox

[v2,1/2] mesh: Make NL80211_MESHCONF_RSSI_THRESHOLD configurable

Message ID 1490856826-4401-1-git-send-email-masashi.honma@gmail.com
State Changes Requested
Headers show

Commit Message

Masashi Honma March 30, 2017, 6:53 a.m. UTC
On some practical cases, it is useful to suppress joining to node in the
distance. The new field mesh_rssi_threshold could be used as RSSI
threshold for joining.

Signed-off-by: Masashi Honma <masashi.honma@gmail.com>
---
 src/drivers/driver.h         | 1 +
 src/drivers/driver_nl80211.c | 4 +++-
 wpa_supplicant/config.c      | 2 ++
 wpa_supplicant/config_file.c | 1 +
 wpa_supplicant/config_ssid.h | 8 ++++++++
 wpa_supplicant/mesh.c        | 1 +
 wpa_supplicant/wpa_cli.c     | 2 +-
 7 files changed, 17 insertions(+), 2 deletions(-)

Comments

Jouni Malinen April 1, 2017, 8:45 a.m. UTC | #1
On Thu, Mar 30, 2017 at 03:53:45PM +0900, Masashi Honma wrote:
> On some practical cases, it is useful to suppress joining to node in the
> distance. The new field mesh_rssi_threshold could be used as RSSI
> threshold for joining.

> diff --git a/src/drivers/driver_nl80211.c b/src/drivers/driver_nl80211.c
> @@ -8774,7 +8774,9 @@ static int nl80211_put_mesh_config(struct nl_msg *msg,
>  			 params->auto_plinks)) ||
>  	    ((params->flags & WPA_DRIVER_MESH_CONF_FLAG_MAX_PEER_LINKS) &&
>  	     nla_put_u16(msg, NL80211_MESHCONF_MAX_PEER_LINKS,
> -			 params->max_peer_links)))
> +			 params->max_peer_links)) ||
> +	    (nla_put_u32(msg, NL80211_MESHCONF_RSSI_THRESHOLD,
> +			 params->rssi_threshold)))
>  		return -1;

So this is going the opposite direction of what I was thinking of, i.e.,
hardcoding NL80211_MESHCONF_RSSI_THRESHOLD to be set regardless of
whether this was configured in wpa_supplicant. Do we really want to do
this instead of leaving the kernel to use its default value if the new
mesh_rssi_threshold parameter is not explicitly set?
Masashi Honma April 18, 2017, 6:54 a.m. UTC | #2
On 2017/04/01 17:45, Jouni Malinen wrote:
> So this is going the opposite direction of what I was thinking of, i.e.,
> hardcoding NL80211_MESHCONF_RSSI_THRESHOLD to be set regardless of
> whether this was configured in wpa_supplicant. Do we really want to do
> this instead of leaving the kernel to use its default value if the new
> mesh_rssi_threshold parameter is not explicitly set?

Sorry, I mis-understood your comment.
I already sent PATCH v3. Could you review it ?

Masashi Honma.
diff mbox

Patch

diff --git a/src/drivers/driver.h b/src/drivers/driver.h
index fc2593e..c180ea3 100644
--- a/src/drivers/driver.h
+++ b/src/drivers/driver.h
@@ -1296,6 +1296,7 @@  struct wpa_driver_mesh_bss_params {
 	int auto_plinks;
 	int peer_link_timeout;
 	int max_peer_links;
+	int rssi_threshold;
 	u16 ht_opmode;
 };
 
diff --git a/src/drivers/driver_nl80211.c b/src/drivers/driver_nl80211.c
index bceeba2..c836777 100644
--- a/src/drivers/driver_nl80211.c
+++ b/src/drivers/driver_nl80211.c
@@ -8774,7 +8774,9 @@  static int nl80211_put_mesh_config(struct nl_msg *msg,
 			 params->auto_plinks)) ||
 	    ((params->flags & WPA_DRIVER_MESH_CONF_FLAG_MAX_PEER_LINKS) &&
 	     nla_put_u16(msg, NL80211_MESHCONF_MAX_PEER_LINKS,
-			 params->max_peer_links)))
+			 params->max_peer_links)) ||
+	    (nla_put_u32(msg, NL80211_MESHCONF_RSSI_THRESHOLD,
+			 params->rssi_threshold)))
 		return -1;
 
 	/*
diff --git a/wpa_supplicant/config.c b/wpa_supplicant/config.c
index 8bfb6a1..a0b8861 100644
--- a/wpa_supplicant/config.c
+++ b/wpa_supplicant/config.c
@@ -2066,6 +2066,7 @@  static const struct parse_data ssid_fields[] = {
 #ifdef CONFIG_MESH
 	{ INT_RANGE(mode, 0, 5) },
 	{ INT_RANGE(no_auto_peer, 0, 1) },
+	{ INT_RANGE(mesh_rssi_threshold, -255, 0) },
 #else /* CONFIG_MESH */
 	{ INT_RANGE(mode, 0, 4) },
 #endif /* CONFIG_MESH */
@@ -2598,6 +2599,7 @@  void wpa_config_set_network_defaults(struct wpa_ssid *ssid)
 	ssid->dot11MeshRetryTimeout = DEFAULT_MESH_RETRY_TIMEOUT;
 	ssid->dot11MeshConfirmTimeout = DEFAULT_MESH_CONFIRM_TIMEOUT;
 	ssid->dot11MeshHoldingTimeout = DEFAULT_MESH_HOLDING_TIMEOUT;
+	ssid->mesh_rssi_threshold = DEFAULT_MESH_RSSI_THRESHOLD;
 #endif /* CONFIG_MESH */
 #ifdef CONFIG_HT_OVERRIDES
 	ssid->disable_ht = DEFAULT_DISABLE_HT;
diff --git a/wpa_supplicant/config_file.c b/wpa_supplicant/config_file.c
index e8f1149..f6732e4 100644
--- a/wpa_supplicant/config_file.c
+++ b/wpa_supplicant/config_file.c
@@ -783,6 +783,7 @@  static void wpa_config_write_network(FILE *f, struct wpa_ssid *ssid)
 #endif /* IEEE8021X_EAPOL */
 	INT(mode);
 	INT(no_auto_peer);
+	INT(mesh_rssi_threshold);
 	INT(frequency);
 	INT(fixed_freq);
 #ifdef CONFIG_ACS
diff --git a/wpa_supplicant/config_ssid.h b/wpa_supplicant/config_ssid.h
index 869165c..04a0a9a 100644
--- a/wpa_supplicant/config_ssid.h
+++ b/wpa_supplicant/config_ssid.h
@@ -28,6 +28,7 @@ 
 #define DEFAULT_MESH_RETRY_TIMEOUT 40
 #define DEFAULT_MESH_CONFIRM_TIMEOUT 40
 #define DEFAULT_MESH_HOLDING_TIMEOUT 40
+#define DEFAULT_MESH_RSSI_THRESHOLD 0
 #define DEFAULT_DISABLE_HT 0
 #define DEFAULT_DISABLE_HT40 0
 #define DEFAULT_DISABLE_SGI 0
@@ -807,6 +808,13 @@  struct wpa_ssid {
 	 */
 	int no_auto_peer;
 
+#ifdef CONFIG_MESH
+	/**
+	 * mesh_rssi_threshold - Set mesh parameter mesh_rssi_threshold(dBm)
+	 */
+	int mesh_rssi_threshold;
+#endif /* CONFIG_MESH */
+
 	/**
 	 * wps_disabled - WPS disabled in AP mode
 	 *
diff --git a/wpa_supplicant/mesh.c b/wpa_supplicant/mesh.c
index 01b657e..0619599 100644
--- a/wpa_supplicant/mesh.c
+++ b/wpa_supplicant/mesh.c
@@ -413,6 +413,7 @@  int wpa_supplicant_join_mesh(struct wpa_supplicant *wpa_s,
 	else if (wpa_s->conf->dtim_period > 0)
 		params.dtim_period = wpa_s->conf->dtim_period;
 	params.conf.max_peer_links = wpa_s->conf->max_peer_links;
+	params.conf.rssi_threshold = ssid->mesh_rssi_threshold;
 
 	if (ssid->key_mgmt & WPA_KEY_MGMT_SAE) {
 		params.flags |= WPA_DRIVER_MESH_FLAG_SAE_AUTH;
diff --git a/wpa_supplicant/wpa_cli.c b/wpa_supplicant/wpa_cli.c
index c5091b5..8278bd2 100644
--- a/wpa_supplicant/wpa_cli.c
+++ b/wpa_supplicant/wpa_cli.c
@@ -1392,7 +1392,7 @@  static const char *network_fields[] = {
 	"eap_workaround", "pac_file", "fragment_size", "ocsp",
 #endif /* IEEE8021X_EAPOL */
 #ifdef CONFIG_MESH
-	"mode", "no_auto_peer",
+	"mode", "no_auto_peer", "mesh_rssi_threshold",
 #else /* CONFIG_MESH */
 	"mode",
 #endif /* CONFIG_MESH */