[PATCH 1/3] mesh: Make max peer links configurable

[Masashi Honma]

Max peer links is max number of connecting mesh peers at the same time.
Max peer links is greater than 0 and smaller than 255.
Because dot11MeshNumberOfPeerings is in the range.

Signed-off-by: Masashi Honma <masashi.honma at gmail.com>
---
 src/drivers/driver.h         | 1 +
 src/drivers/driver_nl80211.c | 4 ++++
 wpa_supplicant/config.c      | 2 ++
 wpa_supplicant/config.h      | 8 ++++++++
 wpa_supplicant/mesh.c        | 3 ++-
 5 files changed, 17 insertions(+), 1 deletion(-)

diff --git a/src/drivers/driver.h b/src/drivers/driver.h
index 4fcc648..b8ee825 100644
--- a/src/drivers/driver.h
+++ b/src/drivers/driver.h
@@ -953,6 +953,7 @@ struct wpa_driver_mesh_join_params {
 	int ie_len;
 	int freq;
 	int beacon_int;
+	int max_peer_links;
 	enum ht_mode ht_mode;
 	struct wpa_driver_mesh_bss_params conf;
 #define WPA_DRIVER_MESH_FLAG_USER_MPM	0x00000001
diff --git a/src/drivers/driver_nl80211.c b/src/drivers/driver_nl80211.c
index f6d5507..cfd3b70 100644
--- a/src/drivers/driver_nl80211.c
+++ b/src/drivers/driver_nl80211.c
@@ -7809,6 +7809,10 @@ wpa_driver_nl80211_join_mesh(void *priv,
 	if (!(params->conf.flags & WPA_DRIVER_MESH_CONF_FLAG_AUTO_PLINKS) &&
 	    nla_put_u32(msg, NL80211_MESHCONF_AUTO_OPEN_PLINKS, 0))
 		goto fail;
+	if ((params->conf.flags & WPA_DRIVER_MESH_FLAG_DRIVER_MPM) &&
+	    nla_put_u16(msg, NL80211_MESHCONF_MAX_PEER_LINKS,
+			params->max_peer_links))
+		goto fail;
 	nla_nest_end(msg, container);
 
 	ret = send_and_recv_msgs(drv, msg, NULL, NULL);
diff --git a/wpa_supplicant/config.c b/wpa_supplicant/config.c
index bd80b29..d3a8c86 100644
--- a/wpa_supplicant/config.c
+++ b/wpa_supplicant/config.c
@@ -3450,6 +3450,7 @@ struct wpa_config * wpa_config_alloc_empty(const char *ctrl_interface,
 	config->eapol_version = DEFAULT_EAPOL_VERSION;
 	config->ap_scan = DEFAULT_AP_SCAN;
 	config->user_mpm = DEFAULT_USER_MPM;
+	config->max_peer_links = DEFAULT_MAX_PEER_LINKS;
 	config->fast_reauth = DEFAULT_FAST_REAUTH;
 	config->p2p_go_intent = DEFAULT_P2P_GO_INTENT;
 	config->p2p_intra_bss = DEFAULT_P2P_INTRA_BSS;
@@ -3998,6 +3999,7 @@ static const struct global_parse_data global_fields[] = {
 	{ FUNC(bgscan), 0 },
 #ifdef CONFIG_MESH
 	{ INT(user_mpm), 0 },
+	{ INT_RANGE(max_peer_links, 0, 255), 0 },
 #endif /* CONFIG_MESH */
 	{ INT(disable_scan_offload), 0 },
 	{ INT(fast_reauth), 0 },
diff --git a/wpa_supplicant/config.h b/wpa_supplicant/config.h
index 2c3d6f5..c8cdca2 100644
--- a/wpa_supplicant/config.h
+++ b/wpa_supplicant/config.h
@@ -16,6 +16,7 @@
 #define DEFAULT_AP_SCAN 1
 #endif /* CONFIG_NO_SCAN_PROCESSING */
 #define DEFAULT_USER_MPM 1
+#define DEFAULT_MAX_PEER_LINKS 99
 #define DEFAULT_FAST_REAUTH 1
 #define DEFAULT_P2P_GO_INTENT 7
 #define DEFAULT_P2P_INTRA_BSS 1
@@ -1111,6 +1112,13 @@ struct wpa_config {
 	 * If AMPE or SAE is enabled, the MPM is always in userspace.
 	 */
 	int user_mpm;
+
+	/**
+	 * max_peer_links - Max peer links
+	 *
+	 * Max number of mesh peering currently maintained by the STA.
+	 */
+	int max_peer_links;
 };
 
 
diff --git a/wpa_supplicant/mesh.c b/wpa_supplicant/mesh.c
index 7adfa63..7a4f3de 100644
--- a/wpa_supplicant/mesh.c
+++ b/wpa_supplicant/mesh.c
@@ -169,7 +169,7 @@ static int wpa_supplicant_mesh_init(struct wpa_supplicant *wpa_s,
 	bss->iconf = conf;
 	ifmsh->conf = conf;
 
-	ifmsh->bss[0]->max_plinks = 99;
+	ifmsh->bss[0]->max_plinks = wpa_s->conf->max_peer_links;
 	os_strlcpy(bss->conf->iface, wpa_s->ifname, sizeof(bss->conf->iface));
 
 	mconf = mesh_config_create(ssid);
@@ -323,6 +323,7 @@ int wpa_supplicant_join_mesh(struct wpa_supplicant *wpa_s,
 		params.beacon_int = ssid->beacon_int;
 	else if (wpa_s->conf->beacon_int > 0)
 		params.beacon_int = wpa_s->conf->beacon_int;
+	params.max_peer_links = wpa_s->conf->max_peer_links;
 #ifdef CONFIG_IEEE80211N
 	params.ht_mode = ssid->mesh_ht_mode;
 #endif /* CONFIG_IEEE80211N */
-- 
1.9.1