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HS 2.0: Add advertisement of WAN Metrics

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Signed-hostap: Jouni Malinen <jouni@qca.qualcomm.com>
This commit is contained in:
Jay Katabathuni 2012-08-25 16:09:01 +03:00 committed by Jouni Malinen
parent 5ccc54aae4
commit 4065a3092b
6 changed files with 112 additions and 0 deletions
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70
hostapd/config_file.c
View File

@ -1441,6 +1441,71 @@ static int hs20_parse_conn_capab(struct hostapd_bss_config *bss, char *buf,
return 0;
}
static int hs20_parse_wan_metrics(struct hostapd_bss_config *bss, char *buf,
int line)
{
u8 *wan_metrics;
char *pos;
/* <WAN Info>:<DL Speed>:<UL Speed>:<DL Load>:<UL Load>:<LMD> */
wan_metrics = os_zalloc(13);
if (wan_metrics == NULL)
return -1;
pos = buf;
/* WAN Info */
if (hexstr2bin(pos, wan_metrics, 1) < 0)
goto fail;
pos += 2;
if (*pos != ':')
goto fail;
pos++;
/* Downlink Speed */
WPA_PUT_LE32(wan_metrics + 1, atoi(pos));
pos = os_strchr(pos, ':');
if (pos == NULL)
goto fail;
pos++;
/* Uplink Speed */
WPA_PUT_LE32(wan_metrics + 5, atoi(pos));
pos = os_strchr(pos, ':');
if (pos == NULL)
goto fail;
pos++;
/* Downlink Load */
wan_metrics[9] = atoi(pos);
pos = os_strchr(pos, ':');
if (pos == NULL)
goto fail;
pos++;
/* Uplink Load */
wan_metrics[10] = atoi(pos);
pos = os_strchr(pos, ':');
if (pos == NULL)
goto fail;
pos++;
/* LMD */
WPA_PUT_LE16(wan_metrics + 11, atoi(pos));
os_free(bss->hs20_wan_metrics);
bss->hs20_wan_metrics = wan_metrics;
return 0;
fail:
wpa_printf(MSG_ERROR, "Line %d: Invalid hs20_wan_metrics '%s'",
line, pos);
os_free(wan_metrics);
return -1;
}
#endif /* CONFIG_HS20 */
@ -2609,6 +2674,11 @@ static int hostapd_config_fill(struct hostapd_config *conf,
bss->hs20 = atoi(pos);
} else if (os_strcmp(buf, "disable_dgaf") == 0) {
bss->disable_dgaf = atoi(pos);
} else if (os_strcmp(buf, "hs20_wan_metrics") == 0) {
if (hs20_parse_wan_metrics(bss, pos, line) < 0) {
errors++;
return errors;
}
} else if (os_strcmp(buf, "hs20_conn_capab") == 0) {
if (hs20_parse_conn_capab(bss, pos, line) < 0) {
errors++;

14
hostapd/hostapd.conf
View File

@ -1412,6 +1412,20 @@ own_ip_addr=127.0.0.1
#hs20_conn_capab=6:22:1
#hs20_conn_capab=17:5060:0
# WAN Metrics
# format: <WAN Info>:<DL Speed>:<UL Speed>:<DL Load>:<UL Load>:<LMD>
# WAN Info: B0-B1: Link Status, B2: Symmetric Link, B3: At Capabity
# (encoded as two hex digits)
# Link Status: 1 = Link up, 2 = Link down, 3 = Link in test state
# Downlink Speed: Estimate of WAN backhaul link current downlink speed in kbps;
# 1..4294967295; 0 = unknown
# Uplink Speed: Estimate of WAN backhaul link current uplink speed in kbps
# 1..4294967295; 0 = unknown
# Downlink Load: Current load of downlink WAN connection (scaled to 255 = 100%)
# Uplink Load: Current load of uplink WAN connection (scaled to 255 = 100%)
# Load Measurement Duration: Duration for measuring downlink/uplink load in
# tenths of a second (1..65535); 0 if load cannot be determined
#hs20_wan_metrics=01:8000:1000:80:240:3000
# Operating Class Indication
# List of operating classes the BSSes in this ESS use. The Global operating

1
src/ap/ap_config.c
View File

@ -507,6 +507,7 @@ static void hostapd_config_free_bss(struct hostapd_bss_config *conf)
#endif /* CONFIG_RADIUS_TEST */
#ifdef CONFIG_HS20
os_free(conf->hs20_wan_metrics);
os_free(conf->hs20_connection_capability);
os_free(conf->hs20_operating_class);
#endif /* CONFIG_HS20 */

1
src/ap/ap_config.h
View File

@ -410,6 +410,7 @@ struct hostapd_bss_config {
#ifdef CONFIG_HS20
int hs20;
int disable_dgaf;
u8 *hs20_wan_metrics;
u8 *hs20_connection_capability;
size_t hs20_connection_capability_len;
u8 *hs20_operating_class;

24
src/ap/gas_serv.c
View File

@ -139,6 +139,8 @@ static void anqp_add_hs_capab_list(struct hostapd_data *hapd,
wpabuf_put_u8(buf, HS20_STYPE_CAPABILITY_LIST);
wpabuf_put_u8(buf, 0); /* Reserved */
wpabuf_put_u8(buf, HS20_STYPE_CAPABILITY_LIST);
if (hapd->conf->hs20_wan_metrics)
wpabuf_put_u8(buf, HS20_STYPE_WAN_METRICS);
if (hapd->conf->hs20_connection_capability)
wpabuf_put_u8(buf, HS20_STYPE_CONNECTION_CAPABILITY);
if (hapd->conf->hs20_operating_class)
@ -255,6 +257,21 @@ static void anqp_add_domain_name(struct hostapd_data *hapd, struct wpabuf *buf)
}
static void anqp_add_wan_metrics(struct hostapd_data *hapd,
struct wpabuf *buf)
{
if (hapd->conf->hs20_wan_metrics) {
u8 *len = gas_anqp_add_element(buf, ANQP_VENDOR_SPECIFIC);
wpabuf_put_be24(buf, OUI_WFA);
wpabuf_put_u8(buf, HS20_ANQP_OUI_TYPE);
wpabuf_put_u8(buf, HS20_STYPE_WAN_METRICS);
wpabuf_put_u8(buf, 0); /* Reserved */
wpabuf_put_data(buf, hapd->conf->hs20_wan_metrics, 13);
gas_anqp_set_element_len(buf, len);
}
}
static void anqp_add_connection_capability(struct hostapd_data *hapd,
struct wpabuf *buf)
{
@ -315,6 +332,8 @@ gas_serv_build_gas_resp_payload(struct hostapd_data *hapd,
if (request & ANQP_REQ_HS_CAPABILITY_LIST)
anqp_add_hs_capab_list(hapd, buf);
if (request & ANQP_REQ_WAN_METRICS)
anqp_add_wan_metrics(hapd, buf);
if (request & ANQP_REQ_CONNECTION_CAPABILITY)
anqp_add_connection_capability(hapd, buf);
if (request & ANQP_REQ_OPERATING_CLASS)
@ -430,6 +449,11 @@ static void rx_anqp_hs_query_list(struct hostapd_data *hapd, u8 subtype,
set_anqp_req(ANQP_REQ_HS_CAPABILITY_LIST, "HS Capability List",
1, 0, 0, qi);
break;
case HS20_STYPE_WAN_METRICS:
set_anqp_req(ANQP_REQ_WAN_METRICS, "WAN Metrics",
hapd->conf->hs20_wan_metrics != NULL,
0, 0, qi);
break;
case HS20_STYPE_CONNECTION_CAPABILITY:
set_anqp_req(ANQP_REQ_CONNECTION_CAPABILITY,
"Connection Capability",

2
src/ap/gas_serv.h
View File

@ -25,6 +25,8 @@
(1 << (ANQP_DOMAIN_NAME - ANQP_QUERY_LIST))
#define ANQP_REQ_HS_CAPABILITY_LIST \
(0x10000 << HS20_STYPE_CAPABILITY_LIST)
#define ANQP_REQ_WAN_METRICS \
(0x10000 << HS20_STYPE_WAN_METRICS)
#define ANQP_REQ_CONNECTION_CAPABILITY \
(0x10000 << HS20_STYPE_CONNECTION_CAPABILITY)
#define ANQP_REQ_OPERATING_CLASS \