diff options
Diffstat (limited to 'src/ap/hs20.c')
| -rw-r--r-- | src/ap/hs20.c | 154 |
1 files changed, 150 insertions, 4 deletions
diff --git a/src/ap/hs20.c b/src/ap/hs20.c index 45d518b..d7909fa 100644 --- a/src/ap/hs20.c +++ b/src/ap/hs20.c @@ -1,7 +1,7 @@ /* * Hotspot 2.0 AP ANQP processing * Copyright (c) 2009, Atheros Communications, Inc. - * Copyright (c) 2011-2012, Qualcomm Atheros, Inc. + * Copyright (c) 2011-2013, Qualcomm Atheros, Inc. * * This software may be distributed under the terms of the BSD license. * See README for more details. @@ -13,19 +13,165 @@ #include "common/ieee802_11_defs.h" #include "hostapd.h" #include "ap_config.h" +#include "ap_drv_ops.h" #include "hs20.h" u8 * hostapd_eid_hs20_indication(struct hostapd_data *hapd, u8 *eid) { + u8 conf; if (!hapd->conf->hs20) return eid; *eid++ = WLAN_EID_VENDOR_SPECIFIC; - *eid++ = 5; + *eid++ = 7; WPA_PUT_BE24(eid, OUI_WFA); eid += 3; *eid++ = HS20_INDICATION_OUI_TYPE; - /* Hotspot Configuration: DGAF Enabled */ - *eid++ = hapd->conf->disable_dgaf ? 0x01 : 0x00; + conf = HS20_VERSION; /* Release Number */ + conf |= HS20_ANQP_DOMAIN_ID_PRESENT; + if (hapd->conf->disable_dgaf) + conf |= HS20_DGAF_DISABLED; + *eid++ = conf; + WPA_PUT_LE16(eid, hapd->conf->anqp_domain_id); + eid += 2; + return eid; } + + +u8 * hostapd_eid_osen(struct hostapd_data *hapd, u8 *eid) +{ + u8 *len; + u16 capab; + + if (!hapd->conf->osen) + return eid; + + *eid++ = WLAN_EID_VENDOR_SPECIFIC; + len = eid++; /* to be filled */ + WPA_PUT_BE24(eid, OUI_WFA); + eid += 3; + *eid++ = HS20_OSEN_OUI_TYPE; + + /* Group Data Cipher Suite */ + RSN_SELECTOR_PUT(eid, RSN_CIPHER_SUITE_NO_GROUP_ADDRESSED); + eid += RSN_SELECTOR_LEN; + + /* Pairwise Cipher Suite Count and List */ + WPA_PUT_LE16(eid, 1); + eid += 2; + RSN_SELECTOR_PUT(eid, RSN_CIPHER_SUITE_CCMP); + eid += RSN_SELECTOR_LEN; + + /* AKM Suite Count and List */ + WPA_PUT_LE16(eid, 1); + eid += 2; + RSN_SELECTOR_PUT(eid, RSN_AUTH_KEY_MGMT_OSEN); + eid += RSN_SELECTOR_LEN; + + /* RSN Capabilities */ + capab = 0; + if (hapd->conf->wmm_enabled) { + /* 4 PTKSA replay counters when using WMM */ + capab |= (RSN_NUM_REPLAY_COUNTERS_16 << 2); + } +#ifdef CONFIG_IEEE80211W + if (hapd->conf->ieee80211w != NO_MGMT_FRAME_PROTECTION) { + capab |= WPA_CAPABILITY_MFPC; + if (hapd->conf->ieee80211w == MGMT_FRAME_PROTECTION_REQUIRED) + capab |= WPA_CAPABILITY_MFPR; + } +#endif /* CONFIG_IEEE80211W */ + WPA_PUT_LE16(eid, capab); + eid += 2; + + *len = eid - len - 1; + + return eid; +} + + +int hs20_send_wnm_notification(struct hostapd_data *hapd, const u8 *addr, + u8 osu_method, const char *url) +{ + struct wpabuf *buf; + size_t len = 0; + int ret; + + /* TODO: should refuse to send notification if the STA is not associated + * or if the STA did not indicate support for WNM-Notification */ + + if (url) { + len = 1 + os_strlen(url); + if (5 + len > 255) { + wpa_printf(MSG_INFO, "HS 2.0: Too long URL for " + "WNM-Notification: '%s'", url); + return -1; + } + } + + buf = wpabuf_alloc(4 + 7 + len); + if (buf == NULL) + return -1; + + wpabuf_put_u8(buf, WLAN_ACTION_WNM); + wpabuf_put_u8(buf, WNM_NOTIFICATION_REQ); + wpabuf_put_u8(buf, 1); /* Dialog token */ + wpabuf_put_u8(buf, 1); /* Type - 1 reserved for WFA */ + + /* Subscription Remediation subelement */ + wpabuf_put_u8(buf, WLAN_EID_VENDOR_SPECIFIC); + wpabuf_put_u8(buf, 5 + len); + wpabuf_put_be24(buf, OUI_WFA); + wpabuf_put_u8(buf, HS20_WNM_SUB_REM_NEEDED); + if (url) { + wpabuf_put_u8(buf, len - 1); + wpabuf_put_data(buf, url, len - 1); + wpabuf_put_u8(buf, osu_method); + } else { + /* Server URL and Server Method fields not included */ + wpabuf_put_u8(buf, 0); + } + + ret = hostapd_drv_send_action(hapd, hapd->iface->freq, 0, addr, + wpabuf_head(buf), wpabuf_len(buf)); + + wpabuf_free(buf); + + return ret; +} + + +int hs20_send_wnm_notification_deauth_req(struct hostapd_data *hapd, + const u8 *addr, + const struct wpabuf *payload) +{ + struct wpabuf *buf; + int ret; + + /* TODO: should refuse to send notification if the STA is not associated + * or if the STA did not indicate support for WNM-Notification */ + + buf = wpabuf_alloc(4 + 6 + wpabuf_len(payload)); + if (buf == NULL) + return -1; + + wpabuf_put_u8(buf, WLAN_ACTION_WNM); + wpabuf_put_u8(buf, WNM_NOTIFICATION_REQ); + wpabuf_put_u8(buf, 1); /* Dialog token */ + wpabuf_put_u8(buf, 1); /* Type - 1 reserved for WFA */ + + /* Deauthentication Imminent Notice subelement */ + wpabuf_put_u8(buf, WLAN_EID_VENDOR_SPECIFIC); + wpabuf_put_u8(buf, 4 + wpabuf_len(payload)); + wpabuf_put_be24(buf, OUI_WFA); + wpabuf_put_u8(buf, HS20_WNM_DEAUTH_IMMINENT_NOTICE); + wpabuf_put_buf(buf, payload); + + ret = hostapd_drv_send_action(hapd, hapd->iface->freq, 0, addr, + wpabuf_head(buf), wpabuf_len(buf)); + + wpabuf_free(buf); + + return ret; +} |