From 9a01d7f21bd33725dc33325a437c3cc4185ee8bd Mon Sep 17 00:00:00 2001 From: Daniel Golle 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 --- 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 @@ -9228,6 +9228,9 @@ 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 @@ -121,6 +121,7 @@ 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; @@ -256,6 +257,7 @@ 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]) { @@ -534,6 +536,10 @@ 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