-From 9a01d7f21bd33725dc33325a437c3cc4185ee8bd Mon Sep 17 00:00:00 2001
-From: Daniel Golle <daniel@makrotopia.org>
-Date: Wed, 18 Apr 2018 19:24:31 +0200
-Subject: [PATCH 16/16] mesh: make forwarding configurable
-
-Allow mesh_fwding to be specified in a mesh bss config, pass that
-to the driver (only nl80211 implemented for now) and announce
-forwarding capability accordingly.
-
-Signed-off-by: Daniel Golle <daniel@makrotopia.org>
----
- src/ap/ap_config.h | 2 ++
- src/drivers/driver.h | 2 ++
- src/drivers/driver_nl80211.c | 3 +++
- wpa_supplicant/config.c | 4 ++++
- wpa_supplicant/config.h | 9 +++++++++
- wpa_supplicant/config_file.c | 4 ++++
- wpa_supplicant/config_ssid.h | 5 +++++
- wpa_supplicant/mesh.c | 6 ++++++
- wpa_supplicant/mesh_mpm.c | 4 ++--
- wpa_supplicant/wpa_supplicant.conf | 3 +++
- 10 files changed, 40 insertions(+), 2 deletions(-)
-
---- a/src/ap/ap_config.h
-+++ b/src/ap/ap_config.h
-@@ -49,6 +49,7 @@ struct mesh_conf {
- int dot11MeshRetryTimeout; /* msec */
- int dot11MeshConfirmTimeout; /* msec */
- int dot11MeshHoldingTimeout; /* msec */
-+ int mesh_fwding;
- };
-
- #define MAX_STA_COUNT 2007
-@@ -624,6 +625,7 @@ struct hostapd_bss_config {
-
- #define MESH_ENABLED BIT(0)
- int mesh;
-+ int mesh_fwding;
-
- u8 radio_measurements[RRM_CAPABILITIES_IE_LEN];
-
---- a/src/drivers/driver.h
-+++ b/src/drivers/driver.h
-@@ -1363,6 +1363,7 @@ struct wpa_driver_mesh_bss_params {
- #define WPA_DRIVER_MESH_CONF_FLAG_MAX_PEER_LINKS 0x00000004
- #define WPA_DRIVER_MESH_CONF_FLAG_HT_OP_MODE 0x00000008
- #define WPA_DRIVER_MESH_CONF_FLAG_RSSI_THRESHOLD 0x00000010
-+#define WPA_DRIVER_MESH_CONF_FLAG_FORWARDING 0x00000020
- /*
- * TODO: Other mesh configuration parameters would go here.
- * See NL80211_MESHCONF_* for all the mesh config parameters.
-@@ -1372,6 +1373,7 @@ struct wpa_driver_mesh_bss_params {
- int peer_link_timeout;
- int max_peer_links;
- int rssi_threshold;
-+ int forwarding;
- u16 ht_opmode;
- };
-
---- a/src/drivers/driver_nl80211.c
-+++ b/src/drivers/driver_nl80211.c
-@@ -9230,6 +9230,9 @@ static int nl80211_put_mesh_config(struc
- if (((params->flags & WPA_DRIVER_MESH_CONF_FLAG_AUTO_PLINKS) &&
- nla_put_u8(msg, NL80211_MESHCONF_AUTO_OPEN_PLINKS,
- params->auto_plinks)) ||
-+ ((params->flags & WPA_DRIVER_MESH_CONF_FLAG_FORWARDING) &&
-+ nla_put_u8(msg, NL80211_MESHCONF_FORWARDING,
-+ params->forwarding)) ||
- ((params->flags & WPA_DRIVER_MESH_CONF_FLAG_MAX_PEER_LINKS) &&
- nla_put_u16(msg, NL80211_MESHCONF_MAX_PEER_LINKS,
- params->max_peer_links)) ||
---- a/wpa_supplicant/config.c
-+++ b/wpa_supplicant/config.c
-@@ -2212,6 +2212,7 @@ static const struct parse_data ssid_fiel
- #ifdef CONFIG_MESH
- { INT_RANGE(mode, 0, 5) },
- { INT_RANGE(no_auto_peer, 0, 1) },
-+ { INT_RANGE(mesh_fwding, 0, 1) },
- { INT_RANGE(mesh_rssi_threshold, -255, 1) },
- #else /* CONFIG_MESH */
- { INT_RANGE(mode, 0, 4) },
-@@ -2763,6 +2764,7 @@ void wpa_config_set_network_defaults(str
- ssid->dot11MeshRetryTimeout = DEFAULT_MESH_RETRY_TIMEOUT;
- ssid->dot11MeshConfirmTimeout = DEFAULT_MESH_CONFIRM_TIMEOUT;
- ssid->dot11MeshHoldingTimeout = DEFAULT_MESH_HOLDING_TIMEOUT;
-+ ssid->mesh_fwding = DEFAULT_MESH_FWDING;
- ssid->mesh_rssi_threshold = DEFAULT_MESH_RSSI_THRESHOLD;
- #endif /* CONFIG_MESH */
- #ifdef CONFIG_HT_OVERRIDES
-@@ -3978,6 +3980,7 @@ struct wpa_config * wpa_config_alloc_emp
- config->user_mpm = DEFAULT_USER_MPM;
- config->max_peer_links = DEFAULT_MAX_PEER_LINKS;
- config->mesh_max_inactivity = DEFAULT_MESH_MAX_INACTIVITY;
-+ config->mesh_fwding = DEFAULT_MESH_FWDING;
- config->dot11RSNASAERetransPeriod =
- DEFAULT_DOT11_RSNA_SAE_RETRANS_PERIOD;
- config->fast_reauth = DEFAULT_FAST_REAUTH;
-@@ -4600,6 +4603,7 @@ static const struct global_parse_data gl
- { INT(user_mpm), 0 },
- { INT_RANGE(max_peer_links, 0, 255), 0 },
- { INT(mesh_max_inactivity), 0 },
-+ { INT_RANGE(mesh_fwding, 0, 1), 0 },
- { INT(dot11RSNASAERetransPeriod), 0 },
- #endif /* CONFIG_MESH */
- { INT(disable_scan_offload), 0 },
---- a/wpa_supplicant/config.h
-+++ b/wpa_supplicant/config.h
-@@ -18,6 +18,7 @@
- #define DEFAULT_USER_MPM 1
- #define DEFAULT_MAX_PEER_LINKS 99
- #define DEFAULT_MESH_MAX_INACTIVITY 300
-+#define DEFAULT_MESH_FWDING 1
- /*
- * The default dot11RSNASAERetransPeriod is defined as 40 ms in the standard,
- * but use 1000 ms in practice to avoid issues on low power CPUs.
-@@ -1306,6 +1307,14 @@ struct wpa_config {
- int mesh_max_inactivity;
-
- /**
-+ * mesh_fwding - Mesh network layer-2 forwarding
-+ *
-+ * This controls whether to enable layer-2 forwarding.
-+ * By default: 1: enabled
-+ */
-+ int mesh_fwding;
-+
-+ /**
- * dot11RSNASAERetransPeriod - Timeout to retransmit SAE Auth frame
- *
- * This timeout value is used in mesh STA to retransmit
---- a/wpa_supplicant/config_file.c
-+++ b/wpa_supplicant/config_file.c
-@@ -818,6 +818,7 @@ static void wpa_config_write_network(FIL
- #endif /* IEEE8021X_EAPOL */
- INT(mode);
- INT(no_auto_peer);
-+ INT(mesh_fwding);
- INT(frequency);
- INT(fixed_freq);
- #ifdef CONFIG_ACS
-@@ -1450,6 +1451,9 @@ static void wpa_config_write_global(FILE
- fprintf(f, "mesh_max_inactivity=%d\n",
- config->mesh_max_inactivity);
-
-+ if (config->mesh_fwding != DEFAULT_MESH_FWDING)
-+ fprintf(f, "mesh_fwding=%d\n", config->mesh_fwding);
-+
- if (config->dot11RSNASAERetransPeriod !=
- DEFAULT_DOT11_RSNA_SAE_RETRANS_PERIOD)
- fprintf(f, "dot11RSNASAERetransPeriod=%d\n",
---- a/wpa_supplicant/config_ssid.h
-+++ b/wpa_supplicant/config_ssid.h
-@@ -500,6 +500,11 @@ struct wpa_ssid {
- int dot11MeshConfirmTimeout; /* msec */
- int dot11MeshHoldingTimeout; /* msec */
-
-+ /**
-+ * Mesh network layer-2 forwarding
-+ */
-+ int mesh_fwding;
-+
- int ht;
- int ht40;
-
---- a/wpa_supplicant/mesh.c
-+++ b/wpa_supplicant/mesh.c
-@@ -120,6 +120,7 @@ static struct mesh_conf * mesh_config_cr
- conf->mesh_cc_id = 0;
- conf->mesh_sp_id = MESH_SYNC_METHOD_NEIGHBOR_OFFSET;
- conf->mesh_auth_id = (conf->security & MESH_CONF_SEC_AUTH) ? 1 : 0;
-+ conf->mesh_fwding = ssid->mesh_fwding;
- conf->dot11MeshMaxRetries = ssid->dot11MeshMaxRetries;
- conf->dot11MeshRetryTimeout = ssid->dot11MeshRetryTimeout;
- conf->dot11MeshConfirmTimeout = ssid->dot11MeshConfirmTimeout;
-@@ -255,6 +256,7 @@ static int wpa_supplicant_mesh_init(stru
- bss->conf->start_disabled = 1;
- bss->conf->mesh = MESH_ENABLED;
- bss->conf->ap_max_inactivity = wpa_s->conf->mesh_max_inactivity;
-+ bss->conf->mesh_fwding = wpa_s->conf->mesh_fwding;
-
- if (ieee80211_is_dfs(ssid->frequency, wpa_s->hw.modes,
- wpa_s->hw.num_modes) && wpa_s->conf->country[0]) {
-@@ -508,6 +510,10 @@ int wpa_supplicant_join_mesh(struct wpa_
- }
- params->conf.peer_link_timeout = wpa_s->conf->mesh_max_inactivity;
-
-+ /* always explicitely set forwarding to on or off for now */
-+ params->conf.flags |= WPA_DRIVER_MESH_CONF_FLAG_FORWARDING;
-+ params->conf.forwarding = ssid->mesh_fwding;
-+
- wpa_s->mesh_params = params;
- if (wpa_supplicant_mesh_init(wpa_s, ssid, ¶ms->freq)) {
- wpa_msg(wpa_s, MSG_ERROR, "Failed to init mesh");
---- a/wpa_supplicant/mesh_mpm.c
-+++ b/wpa_supplicant/mesh_mpm.c
-@@ -288,9 +288,9 @@ static void mesh_mpm_send_plink_action(s
- info = (bss->num_plinks > 63 ? 63 : bss->num_plinks) << 1;
- /* TODO: Add Connected to Mesh Gate/AS subfields */
- wpabuf_put_u8(buf, info);
-- /* always forwarding & accepting plinks for now */
-+ /* set forwarding & always accepting plinks for now */
- wpabuf_put_u8(buf, MESH_CAP_ACCEPT_ADDITIONAL_PEER |
-- MESH_CAP_FORWARDING);
-+ (conf->mesh_fwding ? MESH_CAP_FORWARDING : 0));
- } else { /* Peer closing frame */
- /* IE: Mesh ID */
- wpabuf_put_u8(buf, WLAN_EID_MESH_ID);
---- a/wpa_supplicant/wpa_supplicant.conf
-+++ b/wpa_supplicant/wpa_supplicant.conf
-@@ -153,6 +153,9 @@ ap_scan=1
- # This timeout value is used in mesh STA to clean up inactive stations.
- #mesh_max_inactivity=300
-
-+# Enable 802.11s layer-2 routing and forwarding
-+#mesh_fwding=1
-+
- # cert_in_cb - Whether to include a peer certificate dump in events
- # This controls whether peer certificates for authentication server and
- # its certificate chain are included in EAP peer certificate events. This is
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