diff options
Diffstat (limited to 'src/ap/ieee802_1x.c')
-rw-r--r-- | src/ap/ieee802_1x.c | 692 |
1 files changed, 522 insertions, 170 deletions
diff --git a/src/ap/ieee802_1x.c b/src/ap/ieee802_1x.c index d9c21a8b8117f..79dc0f9574880 100644 --- a/src/ap/ieee802_1x.c +++ b/src/ap/ieee802_1x.c @@ -29,11 +29,14 @@ #include "pmksa_cache_auth.h" #include "ap_config.h" #include "ap_drv_ops.h" +#include "wps_hostapd.h" +#include "hs20.h" #include "ieee802_1x.h" static void ieee802_1x_finished(struct hostapd_data *hapd, - struct sta_info *sta, int success); + struct sta_info *sta, int success, + int remediation); static void ieee802_1x_send(struct hostapd_data *hapd, struct sta_info *sta, @@ -63,6 +66,20 @@ static void ieee802_1x_send(struct hostapd_data *hapd, struct sta_info *sta, if (wpa_auth_pairwise_set(sta->wpa_sm)) encrypt = 1; +#ifdef CONFIG_TESTING_OPTIONS + if (hapd->ext_eapol_frame_io) { + size_t hex_len = 2 * len + 1; + char *hex = os_malloc(hex_len); + + if (hex) { + wpa_snprintf_hex(hex, hex_len, buf, len); + wpa_msg(hapd->msg_ctx, MSG_INFO, + "EAPOL-TX " MACSTR " %s", + MAC2STR(sta->addr), hex); + os_free(hex); + } + } else +#endif /* CONFIG_TESTING_OPTIONS */ if (sta->flags & WLAN_STA_PREAUTH) { rsn_preauth_send(hapd, sta, buf, len); } else { @@ -96,12 +113,13 @@ void ieee802_1x_set_sta_authorized(struct hostapd_data *hapd, } if (res && errno != ENOENT) { - printf("Could not set station " MACSTR " flags for kernel " - "driver (errno=%d).\n", MAC2STR(sta->addr), errno); + wpa_printf(MSG_DEBUG, "Could not set station " MACSTR + " flags for kernel driver (errno=%d).", + MAC2STR(sta->addr), errno); } if (authorized) { - os_get_time(&sta->connected_time); + os_get_reltime(&sta->connected_time); accounting_sta_start(hapd, sta); } } @@ -186,114 +204,10 @@ static void ieee802_1x_tx_key_one(struct hostapd_data *hapd, } -#ifndef CONFIG_NO_VLAN -static struct hostapd_wep_keys * -ieee802_1x_group_alloc(struct hostapd_data *hapd, const char *ifname) -{ - struct hostapd_wep_keys *key; - - key = os_zalloc(sizeof(*key)); - if (key == NULL) - return NULL; - - key->default_len = hapd->conf->default_wep_key_len; - - if (key->idx >= hapd->conf->broadcast_key_idx_max || - key->idx < hapd->conf->broadcast_key_idx_min) - key->idx = hapd->conf->broadcast_key_idx_min; - else - key->idx++; - - if (!key->key[key->idx]) - key->key[key->idx] = os_malloc(key->default_len); - if (key->key[key->idx] == NULL || - random_get_bytes(key->key[key->idx], key->default_len)) { - printf("Could not generate random WEP key (dynamic VLAN).\n"); - os_free(key->key[key->idx]); - key->key[key->idx] = NULL; - os_free(key); - return NULL; - } - key->len[key->idx] = key->default_len; - - wpa_printf(MSG_DEBUG, "%s: Default WEP idx %d for dynamic VLAN\n", - ifname, key->idx); - wpa_hexdump_key(MSG_DEBUG, "Default WEP key (dynamic VLAN)", - key->key[key->idx], key->len[key->idx]); - - if (hostapd_drv_set_key(ifname, hapd, WPA_ALG_WEP, - broadcast_ether_addr, key->idx, 1, - NULL, 0, key->key[key->idx], - key->len[key->idx])) - printf("Could not set dynamic VLAN WEP encryption key.\n"); - - hostapd_set_drv_ieee8021x(hapd, ifname, 1); - - return key; -} - - -static struct hostapd_wep_keys * -ieee802_1x_get_group(struct hostapd_data *hapd, struct hostapd_ssid *ssid, - size_t vlan_id) -{ - const char *ifname; - - if (vlan_id == 0) - return &ssid->wep; - - if (vlan_id <= ssid->max_dyn_vlan_keys && ssid->dyn_vlan_keys && - ssid->dyn_vlan_keys[vlan_id]) - return ssid->dyn_vlan_keys[vlan_id]; - - wpa_printf(MSG_DEBUG, "IEEE 802.1X: Creating new group " - "state machine for VLAN ID %lu", - (unsigned long) vlan_id); - - ifname = hostapd_get_vlan_id_ifname(hapd->conf->vlan, vlan_id); - if (ifname == NULL) { - wpa_printf(MSG_DEBUG, "IEEE 802.1X: Unknown VLAN ID %lu - " - "cannot create group key state machine", - (unsigned long) vlan_id); - return NULL; - } - - if (ssid->dyn_vlan_keys == NULL) { - int size = (vlan_id + 1) * sizeof(ssid->dyn_vlan_keys[0]); - ssid->dyn_vlan_keys = os_zalloc(size); - if (ssid->dyn_vlan_keys == NULL) - return NULL; - ssid->max_dyn_vlan_keys = vlan_id; - } - - if (ssid->max_dyn_vlan_keys < vlan_id) { - struct hostapd_wep_keys **na; - int size = (vlan_id + 1) * sizeof(ssid->dyn_vlan_keys[0]); - na = os_realloc(ssid->dyn_vlan_keys, size); - if (na == NULL) - return NULL; - ssid->dyn_vlan_keys = na; - os_memset(&ssid->dyn_vlan_keys[ssid->max_dyn_vlan_keys + 1], 0, - (vlan_id - ssid->max_dyn_vlan_keys) * - sizeof(ssid->dyn_vlan_keys[0])); - ssid->max_dyn_vlan_keys = vlan_id; - } - - ssid->dyn_vlan_keys[vlan_id] = ieee802_1x_group_alloc(hapd, ifname); - - return ssid->dyn_vlan_keys[vlan_id]; -} -#endif /* CONFIG_NO_VLAN */ - - void ieee802_1x_tx_key(struct hostapd_data *hapd, struct sta_info *sta) { struct eapol_authenticator *eapol = hapd->eapol_auth; struct eapol_state_machine *sm = sta->eapol_sm; -#ifndef CONFIG_NO_VLAN - struct hostapd_wep_keys *key = NULL; - int vlan_id; -#endif /* CONFIG_NO_VLAN */ if (sm == NULL || !sm->eap_if->eapKeyData) return; @@ -302,18 +216,12 @@ void ieee802_1x_tx_key(struct hostapd_data *hapd, struct sta_info *sta) MAC2STR(sta->addr)); #ifndef CONFIG_NO_VLAN - vlan_id = sta->vlan_id; - if (vlan_id < 0 || vlan_id > MAX_VLAN_ID) - vlan_id = 0; - - if (vlan_id) { - key = ieee802_1x_get_group(hapd, sta->ssid, vlan_id); - if (key && key->key[key->idx]) - ieee802_1x_tx_key_one(hapd, sta, key->idx, 1, - key->key[key->idx], - key->len[key->idx]); - } else + if (sta->vlan_id > 0 && sta->vlan_id <= MAX_VLAN_ID) { + wpa_printf(MSG_ERROR, "Using WEP with vlans is not supported."); + return; + } #endif /* CONFIG_NO_VLAN */ + if (eapol->default_wep_key) { ieee802_1x_tx_key_one(hapd, sta, eapol->default_wep_key_idx, 1, eapol->default_wep_key, @@ -388,9 +296,15 @@ static void ieee802_1x_learn_identity(struct hostapd_data *hapd, { const u8 *identity; size_t identity_len; + const struct eap_hdr *hdr = (const struct eap_hdr *) eap; if (len <= sizeof(struct eap_hdr) || - eap[sizeof(struct eap_hdr)] != EAP_TYPE_IDENTITY) + (hdr->code == EAP_CODE_RESPONSE && + eap[sizeof(struct eap_hdr)] != EAP_TYPE_IDENTITY) || + (hdr->code == EAP_CODE_INITIATE && + eap[sizeof(struct eap_hdr)] != EAP_ERP_TYPE_REAUTH) || + (hdr->code != EAP_CODE_RESPONSE && + hdr->code != EAP_CODE_INITIATE)) return; identity = eap_get_identity(sm->eap, &identity_len); @@ -399,21 +313,80 @@ static void ieee802_1x_learn_identity(struct hostapd_data *hapd, /* Save station identity for future RADIUS packets */ os_free(sm->identity); - sm->identity = os_malloc(identity_len + 1); + sm->identity = (u8 *) dup_binstr(identity, identity_len); if (sm->identity == NULL) { sm->identity_len = 0; return; } - os_memcpy(sm->identity, identity, identity_len); sm->identity_len = identity_len; - sm->identity[identity_len] = '\0'; hostapd_logger(hapd, sm->addr, HOSTAPD_MODULE_IEEE8021X, HOSTAPD_LEVEL_DEBUG, "STA identity '%s'", sm->identity); sm->dot1xAuthEapolRespIdFramesRx++; } +static int add_common_radius_sta_attr_rsn(struct hostapd_data *hapd, + struct hostapd_radius_attr *req_attr, + struct sta_info *sta, + struct radius_msg *msg) +{ + u32 suite; + int ver, val; + + ver = wpa_auth_sta_wpa_version(sta->wpa_sm); + val = wpa_auth_get_pairwise(sta->wpa_sm); + suite = wpa_cipher_to_suite(ver, val); + if (val != -1 && + !hostapd_config_get_radius_attr(req_attr, + RADIUS_ATTR_WLAN_PAIRWISE_CIPHER) && + !radius_msg_add_attr_int32(msg, RADIUS_ATTR_WLAN_PAIRWISE_CIPHER, + suite)) { + wpa_printf(MSG_ERROR, "Could not add WLAN-Pairwise-Cipher"); + return -1; + } + + suite = wpa_cipher_to_suite((hapd->conf->wpa & 0x2) ? + WPA_PROTO_RSN : WPA_PROTO_WPA, + hapd->conf->wpa_group); + if (!hostapd_config_get_radius_attr(req_attr, + RADIUS_ATTR_WLAN_GROUP_CIPHER) && + !radius_msg_add_attr_int32(msg, RADIUS_ATTR_WLAN_GROUP_CIPHER, + suite)) { + wpa_printf(MSG_ERROR, "Could not add WLAN-Group-Cipher"); + return -1; + } + + val = wpa_auth_sta_key_mgmt(sta->wpa_sm); + suite = wpa_akm_to_suite(val); + if (val != -1 && + !hostapd_config_get_radius_attr(req_attr, + RADIUS_ATTR_WLAN_AKM_SUITE) && + !radius_msg_add_attr_int32(msg, RADIUS_ATTR_WLAN_AKM_SUITE, + suite)) { + wpa_printf(MSG_ERROR, "Could not add WLAN-AKM-Suite"); + return -1; + } + +#ifdef CONFIG_IEEE80211W + if (hapd->conf->ieee80211w != NO_MGMT_FRAME_PROTECTION) { + suite = wpa_cipher_to_suite(WPA_PROTO_RSN, + hapd->conf->group_mgmt_cipher); + if (!hostapd_config_get_radius_attr( + req_attr, RADIUS_ATTR_WLAN_GROUP_MGMT_CIPHER) && + !radius_msg_add_attr_int32( + msg, RADIUS_ATTR_WLAN_GROUP_MGMT_CIPHER, suite)) { + wpa_printf(MSG_ERROR, + "Could not add WLAN-Group-Mgmt-Cipher"); + return -1; + } + } +#endif /* CONFIG_IEEE80211W */ + + return 0; +} + + static int add_common_radius_sta_attr(struct hostapd_data *hapd, struct hostapd_radius_attr *req_attr, struct sta_info *sta, @@ -465,6 +438,25 @@ static int add_common_radius_sta_attr(struct hostapd_data *hapd, } } +#ifdef CONFIG_IEEE80211R + if (hapd->conf->wpa && wpa_key_mgmt_ft(hapd->conf->wpa_key_mgmt) && + sta->wpa_sm && + (wpa_key_mgmt_ft(wpa_auth_sta_key_mgmt(sta->wpa_sm)) || + sta->auth_alg == WLAN_AUTH_FT) && + !hostapd_config_get_radius_attr(req_attr, + RADIUS_ATTR_MOBILITY_DOMAIN_ID) && + !radius_msg_add_attr_int32(msg, RADIUS_ATTR_MOBILITY_DOMAIN_ID, + WPA_GET_BE16( + hapd->conf->mobility_domain))) { + wpa_printf(MSG_ERROR, "Could not add Mobility-Domain-Id"); + return -1; + } +#endif /* CONFIG_IEEE80211R */ + + if (hapd->conf->wpa && sta->wpa_sm && + add_common_radius_sta_attr_rsn(hapd, req_attr, sta, msg) < 0) + return -1; + return 0; } @@ -528,6 +520,22 @@ int add_common_radius_attr(struct hostapd_data *hapd, return -1; } +#ifdef CONFIG_INTERWORKING + if (hapd->conf->interworking && + !is_zero_ether_addr(hapd->conf->hessid)) { + os_snprintf(buf, sizeof(buf), RADIUS_802_1X_ADDR_FORMAT, + MAC2STR(hapd->conf->hessid)); + buf[sizeof(buf) - 1] = '\0'; + if (!hostapd_config_get_radius_attr(req_attr, + RADIUS_ATTR_WLAN_HESSID) && + !radius_msg_add_attr(msg, RADIUS_ATTR_WLAN_HESSID, + (u8 *) buf, os_strlen(buf))) { + wpa_printf(MSG_ERROR, "Could not add WLAN-HESSID"); + return -1; + } + } +#endif /* CONFIG_INTERWORKING */ + if (sta && add_common_radius_sta_attr(hapd, req_attr, sta, msg) < 0) return -1; @@ -564,7 +572,7 @@ static void ieee802_1x_encapsulate_radius(struct hostapd_data *hapd, msg = radius_msg_new(RADIUS_CODE_ACCESS_REQUEST, sm->radius_identifier); if (msg == NULL) { - printf("Could not create net RADIUS packet\n"); + wpa_printf(MSG_INFO, "Could not create new RADIUS packet"); return; } @@ -573,7 +581,7 @@ static void ieee802_1x_encapsulate_radius(struct hostapd_data *hapd, if (sm->identity && !radius_msg_add_attr(msg, RADIUS_ATTR_USER_NAME, sm->identity, sm->identity_len)) { - printf("Could not add User-Name\n"); + wpa_printf(MSG_INFO, "Could not add User-Name"); goto fail; } @@ -587,12 +595,12 @@ static void ieee802_1x_encapsulate_radius(struct hostapd_data *hapd, if (!hostapd_config_get_radius_attr(hapd->conf->radius_auth_req_attr, RADIUS_ATTR_FRAMED_MTU) && !radius_msg_add_attr_int32(msg, RADIUS_ATTR_FRAMED_MTU, 1400)) { - printf("Could not add Framed-MTU\n"); + wpa_printf(MSG_INFO, "Could not add Framed-MTU"); goto fail; } if (eap && !radius_msg_add_eap(msg, eap, len)) { - printf("Could not add EAP-Message\n"); + wpa_printf(MSG_INFO, "Could not add EAP-Message"); goto fail; } @@ -604,8 +612,7 @@ static void ieee802_1x_encapsulate_radius(struct hostapd_data *hapd, int res = radius_msg_copy_attr(msg, sm->last_recv_radius, RADIUS_ATTR_STATE); if (res < 0) { - printf("Could not copy State attribute from previous " - "Access-Challenge\n"); + wpa_printf(MSG_INFO, "Could not copy State attribute from previous Access-Challenge"); goto fail; } if (res > 0) { @@ -632,6 +639,41 @@ static void ieee802_1x_encapsulate_radius(struct hostapd_data *hapd, } } +#ifdef CONFIG_HS20 + if (hapd->conf->hs20) { + u8 ver = 1; /* Release 2 */ + if (!radius_msg_add_wfa( + msg, RADIUS_VENDOR_ATTR_WFA_HS20_AP_VERSION, + &ver, 1)) { + wpa_printf(MSG_ERROR, "Could not add HS 2.0 AP " + "version"); + goto fail; + } + + if (sta->hs20_ie && wpabuf_len(sta->hs20_ie) > 0) { + const u8 *pos; + u8 buf[3]; + u16 id; + pos = wpabuf_head_u8(sta->hs20_ie); + buf[0] = (*pos) >> 4; + if (((*pos) & HS20_PPS_MO_ID_PRESENT) && + wpabuf_len(sta->hs20_ie) >= 3) + id = WPA_GET_LE16(pos + 1); + else + id = 0; + WPA_PUT_BE16(buf + 1, id); + if (!radius_msg_add_wfa( + msg, + RADIUS_VENDOR_ATTR_WFA_HS20_STA_VERSION, + buf, sizeof(buf))) { + wpa_printf(MSG_ERROR, "Could not add HS 2.0 " + "STA version"); + goto fail; + } + } + } +#endif /* CONFIG_HS20 */ + if (radius_client_send(hapd->radius, msg, RADIUS_AUTH, sta->addr) < 0) goto fail; @@ -655,7 +697,7 @@ static void handle_eap_response(struct hostapd_data *hapd, data = (u8 *) (eap + 1); if (len < sizeof(*eap) + 1) { - printf("handle_eap_response: too short response data\n"); + wpa_printf(MSG_INFO, "handle_eap_response: too short response data"); return; } @@ -675,6 +717,39 @@ static void handle_eap_response(struct hostapd_data *hapd, } +static void handle_eap_initiate(struct hostapd_data *hapd, + struct sta_info *sta, struct eap_hdr *eap, + size_t len) +{ +#ifdef CONFIG_ERP + u8 type, *data; + struct eapol_state_machine *sm = sta->eapol_sm; + + if (sm == NULL) + return; + + if (len < sizeof(*eap) + 1) { + wpa_printf(MSG_INFO, + "handle_eap_initiate: too short response data"); + return; + } + + data = (u8 *) (eap + 1); + type = data[0]; + + hostapd_logger(hapd, sm->addr, HOSTAPD_MODULE_IEEE8021X, + HOSTAPD_LEVEL_DEBUG, "received EAP packet (code=%d " + "id=%d len=%d) from STA: EAP Initiate type %u", + eap->code, eap->identifier, be_to_host16(eap->length), + type); + + wpabuf_free(sm->eap_if->eapRespData); + sm->eap_if->eapRespData = wpabuf_alloc_copy(eap, len); + sm->eapolEap = TRUE; +#endif /* CONFIG_ERP */ +} + + /* Process incoming EAP packet from Supplicant */ static void handle_eap(struct hostapd_data *hapd, struct sta_info *sta, u8 *buf, size_t len) @@ -683,7 +758,7 @@ static void handle_eap(struct hostapd_data *hapd, struct sta_info *sta, u16 eap_len; if (len < sizeof(*eap)) { - printf(" too short EAP packet\n"); + wpa_printf(MSG_INFO, " too short EAP packet"); return; } @@ -718,6 +793,13 @@ static void handle_eap(struct hostapd_data *hapd, struct sta_info *sta, case EAP_CODE_FAILURE: wpa_printf(MSG_DEBUG, " (failure)"); return; + case EAP_CODE_INITIATE: + wpa_printf(MSG_DEBUG, " (initiate)"); + handle_eap_initiate(hapd, sta, eap, eap_len); + break; + case EAP_CODE_FINISH: + wpa_printf(MSG_DEBUG, " (finish)"); + break; default: wpa_printf(MSG_DEBUG, " (unknown code)"); return; @@ -761,7 +843,7 @@ void ieee802_1x_receive(struct hostapd_data *hapd, const u8 *sa, const u8 *buf, struct rsn_pmksa_cache_entry *pmksa; int key_mgmt; - if (!hapd->conf->ieee802_1x && !hapd->conf->wpa && + if (!hapd->conf->ieee802_1x && !hapd->conf->wpa && !hapd->conf->osen && !hapd->conf->wps_state) return; @@ -776,7 +858,7 @@ void ieee802_1x_receive(struct hostapd_data *hapd, const u8 *sa, const u8 *buf, } if (len < sizeof(*hdr)) { - printf(" too short IEEE 802.1X packet\n"); + wpa_printf(MSG_INFO, " too short IEEE 802.1X packet"); return; } @@ -786,7 +868,7 @@ void ieee802_1x_receive(struct hostapd_data *hapd, const u8 *sa, const u8 *buf, hdr->version, hdr->type, datalen); if (len - sizeof(*hdr) < datalen) { - printf(" frame too short for this IEEE 802.1X packet\n"); + wpa_printf(MSG_INFO, " frame too short for this IEEE 802.1X packet"); if (sta->eapol_sm) sta->eapol_sm->dot1xAuthEapLengthErrorFramesRx++; return; @@ -812,7 +894,7 @@ void ieee802_1x_receive(struct hostapd_data *hapd, const u8 *sa, const u8 *buf, return; } - if (!hapd->conf->ieee802_1x && + if (!hapd->conf->ieee802_1x && !hapd->conf->osen && !(sta->flags & (WLAN_STA_WPS | WLAN_STA_MAYBE_WPS))) { wpa_printf(MSG_DEBUG, "IEEE 802.1X: Ignore EAPOL message - " "802.1X not enabled and WPS not used"); @@ -832,7 +914,7 @@ void ieee802_1x_receive(struct hostapd_data *hapd, const u8 *sa, const u8 *buf, return; #ifdef CONFIG_WPS - if (!hapd->conf->ieee802_1x) { + if (!hapd->conf->ieee802_1x && hapd->conf->wps_state) { u32 wflags = sta->flags & (WLAN_STA_WPS | WLAN_STA_WPS2 | WLAN_STA_MAYBE_WPS); @@ -939,8 +1021,9 @@ void ieee802_1x_new_station(struct hostapd_data *hapd, struct sta_info *sta) int key_mgmt; #ifdef CONFIG_WPS - if (hapd->conf->wps_state && hapd->conf->wpa && - (sta->flags & (WLAN_STA_WPS | WLAN_STA_MAYBE_WPS))) { + if (hapd->conf->wps_state && + ((hapd->conf->wpa && (sta->flags & WLAN_STA_MAYBE_WPS)) || + (sta->flags & WLAN_STA_WPS))) { /* * Need to enable IEEE 802.1X/EAPOL state machines for possible * WPS handshake even if IEEE 802.1X/EAPOL is not used for @@ -950,7 +1033,7 @@ void ieee802_1x_new_station(struct hostapd_data *hapd, struct sta_info *sta) } #endif /* CONFIG_WPS */ - if (!force_1x && !hapd->conf->ieee802_1x) { + if (!force_1x && !hapd->conf->ieee802_1x && !hapd->conf->osen) { wpa_printf(MSG_DEBUG, "IEEE 802.1X: Ignore STA - " "802.1X not enabled or forced for WPS"); /* @@ -988,7 +1071,8 @@ void ieee802_1x_new_station(struct hostapd_data *hapd, struct sta_info *sta) #ifdef CONFIG_WPS sta->eapol_sm->flags &= ~EAPOL_SM_WAIT_START; - if (!hapd->conf->ieee802_1x && !(sta->flags & WLAN_STA_WPS2)) { + if (!hapd->conf->ieee802_1x && hapd->conf->wps_state && + !(sta->flags & WLAN_STA_WPS2)) { /* * Delay EAPOL frame transmission until a possible WPS STA * initiates the handshake with EAPOL-Start. Only allow the @@ -1127,15 +1211,11 @@ static void ieee802_1x_decapsulate_radius(struct hostapd_data *hapd, if (eap_type >= 0) sm->eap_type_authsrv = eap_type; os_snprintf(buf, sizeof(buf), "EAP-Request-%s (%d)", - eap_type >= 0 ? eap_server_get_name(0, eap_type) : - "??", - eap_type); + eap_server_get_name(0, eap_type), eap_type); break; case EAP_CODE_RESPONSE: os_snprintf(buf, sizeof(buf), "EAP Response-%s (%d)", - eap_type >= 0 ? eap_server_get_name(0, eap_type) : - "??", - eap_type); + eap_server_get_name(0, eap_type), eap_type); break; case EAP_CODE_SUCCESS: os_strlcpy(buf, "EAP Success", sizeof(buf)); @@ -1191,6 +1271,11 @@ static void ieee802_1x_get_keys(struct hostapd_data *hapd, sm->eap_if->aaaEapKeyDataLen = len; sm->eap_if->aaaEapKeyAvailable = TRUE; } + } else { + wpa_printf(MSG_DEBUG, + "MS-MPPE: 1x_get_keys, could not get keys: %p send: %p recv: %p", + keys, keys ? keys->send : NULL, + keys ? keys->recv : NULL); } if (keys) { @@ -1272,13 +1357,10 @@ static void ieee802_1x_update_sta_identity(struct hostapd_data *hapd, NULL) < 0) return; - identity = os_malloc(len + 1); + identity = (u8 *) dup_binstr(buf, len); if (identity == NULL) return; - os_memcpy(identity, buf, len); - identity[len] = '\0'; - hostapd_logger(hapd, sta->addr, HOSTAPD_MODULE_IEEE8021X, HOSTAPD_LEVEL_DEBUG, "old identity '%s' updated with " "User-Name from Access-Accept '%s'", @@ -1317,6 +1399,147 @@ static void ieee802_1x_update_sta_cui(struct hostapd_data *hapd, } +#ifdef CONFIG_HS20 + +static void ieee802_1x_hs20_sub_rem(struct sta_info *sta, u8 *pos, size_t len) +{ + sta->remediation = 1; + os_free(sta->remediation_url); + if (len > 2) { + sta->remediation_url = os_malloc(len); + if (!sta->remediation_url) + return; + sta->remediation_method = pos[0]; + os_memcpy(sta->remediation_url, pos + 1, len - 1); + sta->remediation_url[len - 1] = '\0'; + wpa_printf(MSG_DEBUG, "HS 2.0: Subscription remediation needed " + "for " MACSTR " - server method %u URL %s", + MAC2STR(sta->addr), sta->remediation_method, + sta->remediation_url); + } else { + sta->remediation_url = NULL; + wpa_printf(MSG_DEBUG, "HS 2.0: Subscription remediation needed " + "for " MACSTR, MAC2STR(sta->addr)); + } + /* TODO: assign the STA into remediation VLAN or add filtering */ +} + + +static void ieee802_1x_hs20_deauth_req(struct hostapd_data *hapd, + struct sta_info *sta, u8 *pos, + size_t len) +{ + if (len < 3) + return; /* Malformed information */ + sta->hs20_deauth_requested = 1; + wpa_printf(MSG_DEBUG, "HS 2.0: Deauthentication request - Code %u " + "Re-auth Delay %u", + *pos, WPA_GET_LE16(pos + 1)); + wpabuf_free(sta->hs20_deauth_req); + sta->hs20_deauth_req = wpabuf_alloc(len + 1); + if (sta->hs20_deauth_req) { + wpabuf_put_data(sta->hs20_deauth_req, pos, 3); + wpabuf_put_u8(sta->hs20_deauth_req, len - 3); + wpabuf_put_data(sta->hs20_deauth_req, pos + 3, len - 3); + } + ap_sta_session_timeout(hapd, sta, hapd->conf->hs20_deauth_req_timeout); +} + + +static void ieee802_1x_hs20_session_info(struct hostapd_data *hapd, + struct sta_info *sta, u8 *pos, + size_t len, int session_timeout) +{ + unsigned int swt; + int warning_time, beacon_int; + + if (len < 1) + return; /* Malformed information */ + os_free(sta->hs20_session_info_url); + sta->hs20_session_info_url = os_malloc(len); + if (sta->hs20_session_info_url == NULL) + return; + swt = pos[0]; + os_memcpy(sta->hs20_session_info_url, pos + 1, len - 1); + sta->hs20_session_info_url[len - 1] = '\0'; + wpa_printf(MSG_DEBUG, "HS 2.0: Session Information URL='%s' SWT=%u " + "(session_timeout=%d)", + sta->hs20_session_info_url, swt, session_timeout); + if (session_timeout < 0) { + wpa_printf(MSG_DEBUG, "HS 2.0: No Session-Timeout set - ignore session info URL"); + return; + } + if (swt == 255) + swt = 1; /* Use one minute as the AP selected value */ + + if ((unsigned int) session_timeout < swt * 60) + warning_time = 0; + else + warning_time = session_timeout - swt * 60; + + beacon_int = hapd->iconf->beacon_int; + if (beacon_int < 1) + beacon_int = 100; /* best guess */ + sta->hs20_disassoc_timer = swt * 60 * 1000 / beacon_int * 125 / 128; + if (sta->hs20_disassoc_timer > 65535) + sta->hs20_disassoc_timer = 65535; + + ap_sta_session_warning_timeout(hapd, sta, warning_time); +} + +#endif /* CONFIG_HS20 */ + + +static void ieee802_1x_check_hs20(struct hostapd_data *hapd, + struct sta_info *sta, + struct radius_msg *msg, + int session_timeout) +{ +#ifdef CONFIG_HS20 + u8 *buf, *pos, *end, type, sublen; + size_t len; + + buf = NULL; + sta->remediation = 0; + sta->hs20_deauth_requested = 0; + + for (;;) { + if (radius_msg_get_attr_ptr(msg, RADIUS_ATTR_VENDOR_SPECIFIC, + &buf, &len, buf) < 0) + break; + if (len < 6) + continue; + pos = buf; + end = buf + len; + if (WPA_GET_BE32(pos) != RADIUS_VENDOR_ID_WFA) + continue; + pos += 4; + + type = *pos++; + sublen = *pos++; + if (sublen < 2) + continue; /* invalid length */ + sublen -= 2; /* skip header */ + if (pos + sublen > end) + continue; /* invalid WFA VSA */ + + switch (type) { + case RADIUS_VENDOR_ATTR_WFA_HS20_SUBSCR_REMEDIATION: + ieee802_1x_hs20_sub_rem(sta, pos, sublen); + break; + case RADIUS_VENDOR_ATTR_WFA_HS20_DEAUTH_REQ: + ieee802_1x_hs20_deauth_req(hapd, sta, pos, sublen); + break; + case RADIUS_VENDOR_ATTR_WFA_HS20_SESSION_INFO_URL: + ieee802_1x_hs20_session_info(hapd, sta, pos, sublen, + session_timeout); + break; + } + } +#endif /* CONFIG_HS20 */ +} + + struct sta_id_search { u8 identifier; struct eapol_state_machine *sm; @@ -1391,15 +1614,14 @@ ieee802_1x_receive_auth(struct radius_msg *msg, struct radius_msg *req, "EAP-Message"); } else if (radius_msg_verify(msg, shared_secret, shared_secret_len, req, 1)) { - printf("Incoming RADIUS packet did not have correct " - "Message-Authenticator - dropped\n"); + wpa_printf(MSG_INFO, "Incoming RADIUS packet did not have correct Message-Authenticator - dropped"); return RADIUS_RX_INVALID_AUTHENTICATOR; } if (hdr->code != RADIUS_CODE_ACCESS_ACCEPT && hdr->code != RADIUS_CODE_ACCESS_REJECT && hdr->code != RADIUS_CODE_ACCESS_CHALLENGE) { - printf("Unknown RADIUS message code\n"); + wpa_printf(MSG_INFO, "Unknown RADIUS message code"); return RADIUS_RX_UNKNOWN; } @@ -1443,8 +1665,7 @@ ieee802_1x_receive_auth(struct radius_msg *msg, struct radius_msg *req, sta->vlan_id = radius_msg_get_vlanid(msg); } if (sta->vlan_id > 0 && - hostapd_get_vlan_id_ifname(hapd->conf->vlan, - sta->vlan_id)) { + hostapd_vlan_id_valid(hapd->conf->vlan, sta->vlan_id)) { hostapd_logger(hapd, sta->addr, HOSTAPD_MODULE_RADIUS, HOSTAPD_LEVEL_INFO, @@ -1463,6 +1684,9 @@ ieee802_1x_receive_auth(struct radius_msg *msg, struct radius_msg *req, if (ap_sta_bind_vlan(hapd, sta, old_vlanid) < 0) break; + sta->session_timeout_set = !!session_timeout_set; + sta->session_timeout = session_timeout; + /* RFC 3580, Ch. 3.17 */ if (session_timeout_set && termination_action == RADIUS_TERMINATION_ACTION_RADIUS_REQUEST) { @@ -1477,7 +1701,11 @@ ieee802_1x_receive_auth(struct radius_msg *msg, struct radius_msg *req, ieee802_1x_store_radius_class(hapd, sta, msg); ieee802_1x_update_sta_identity(hapd, sta, msg); ieee802_1x_update_sta_cui(hapd, sta, msg); - if (sm->eap_if->eapKeyAvailable && + ieee802_1x_check_hs20(hapd, sta, msg, + session_timeout_set ? + (int) session_timeout : -1); + if (sm->eap_if->eapKeyAvailable && !sta->remediation && + !sta->hs20_deauth_requested && wpa_auth_pmksa_add(sta->wpa_sm, sm->eapol_key_crypt, session_timeout_set ? (int) session_timeout : -1, sm) == 0) { @@ -1564,7 +1792,7 @@ static int ieee802_1x_rekey_broadcast(struct hostapd_data *hapd) if (eapol->default_wep_key == NULL || random_get_bytes(eapol->default_wep_key, hapd->conf->default_wep_key_len)) { - printf("Could not generate random WEP key.\n"); + wpa_printf(MSG_INFO, "Could not generate random WEP key"); os_free(eapol->default_wep_key); eapol->default_wep_key = NULL; return -1; @@ -1680,14 +1908,14 @@ static void ieee802_1x_aaa_send(void *ctx, void *sta_ctx, static void _ieee802_1x_finished(void *ctx, void *sta_ctx, int success, - int preauth) + int preauth, int remediation) { struct hostapd_data *hapd = ctx; struct sta_info *sta = sta_ctx; if (preauth) rsn_preauth_finished(hapd, sta, success); else - ieee802_1x_finished(hapd, sta, success); + ieee802_1x_finished(hapd, sta, success, remediation); } @@ -1720,7 +1948,9 @@ static int ieee802_1x_get_eap_user(void *ctx, const u8 *identity, user->password_hash = eap_user->password_hash; } user->force_version = eap_user->force_version; + user->macacl = eap_user->macacl; user->ttls_auth = eap_user->ttls_auth; + user->remediation = eap_user->remediation; return 0; } @@ -1804,12 +2034,43 @@ static void ieee802_1x_eapol_event(void *ctx, void *sta_ctx, } +#ifdef CONFIG_ERP + +static struct eap_server_erp_key * +ieee802_1x_erp_get_key(void *ctx, const char *keyname) +{ + struct hostapd_data *hapd = ctx; + struct eap_server_erp_key *erp; + + dl_list_for_each(erp, &hapd->erp_keys, struct eap_server_erp_key, + list) { + if (os_strcmp(erp->keyname_nai, keyname) == 0) + return erp; + } + + return NULL; +} + + +static int ieee802_1x_erp_add_key(void *ctx, struct eap_server_erp_key *erp) +{ + struct hostapd_data *hapd = ctx; + + dl_list_add(&hapd->erp_keys, &erp->list); + return 0; +} + +#endif /* CONFIG_ERP */ + + int ieee802_1x_init(struct hostapd_data *hapd) { int i; struct eapol_auth_config conf; struct eapol_auth_cb cb; + dl_list_init(&hapd->erp_keys); + os_memset(&conf, 0, sizeof(conf)); conf.ctx = hapd; conf.eap_reauth_period = hapd->conf->eap_reauth_period; @@ -1821,6 +2082,9 @@ int ieee802_1x_init(struct hostapd_data *hapd) conf.eap_sim_db_priv = hapd->eap_sim_db_priv; conf.eap_req_id_text = hapd->conf->eap_req_id_text; conf.eap_req_id_text_len = hapd->conf->eap_req_id_text_len; + conf.erp_send_reauth_start = hapd->conf->erp_send_reauth_start; + conf.erp_domain = hapd->conf->erp_domain; + conf.erp = hapd->conf->eap_server_erp; conf.pac_opaque_encr_key = hapd->conf->pac_opaque_encr_key; conf.eap_fast_a_id = hapd->conf->eap_fast_a_id; conf.eap_fast_a_id_len = hapd->conf->eap_fast_a_id_len; @@ -1834,6 +2098,13 @@ int ieee802_1x_init(struct hostapd_data *hapd) conf.fragment_size = hapd->conf->fragment_size; conf.pwd_group = hapd->conf->pwd_group; conf.pbc_in_m1 = hapd->conf->pbc_in_m1; + if (hapd->conf->server_id) { + conf.server_id = (const u8 *) hapd->conf->server_id; + conf.server_id_len = os_strlen(hapd->conf->server_id); + } else { + conf.server_id = (const u8 *) "hostapd"; + conf.server_id_len = 7; + } os_memset(&cb, 0, sizeof(cb)); cb.eapol_send = ieee802_1x_eapol_send; @@ -1846,6 +2117,10 @@ int ieee802_1x_init(struct hostapd_data *hapd) cb.abort_auth = _ieee802_1x_abort_auth; cb.tx_key = _ieee802_1x_tx_key; cb.eapol_event = ieee802_1x_eapol_event; +#ifdef CONFIG_ERP + cb.erp_get_key = ieee802_1x_erp_get_key; + cb.erp_add_key = ieee802_1x_erp_add_key; +#endif /* CONFIG_ERP */ hapd->eapol_auth = eapol_auth_init(&conf, &cb); if (hapd->eapol_auth == NULL) @@ -1877,6 +2152,18 @@ int ieee802_1x_init(struct hostapd_data *hapd) } +void ieee802_1x_erp_flush(struct hostapd_data *hapd) +{ + struct eap_server_erp_key *erp; + + while ((erp = dl_list_first(&hapd->erp_keys, struct eap_server_erp_key, + list)) != NULL) { + dl_list_del(&erp->list); + bin_clear_free(erp, sizeof(*erp)); + } +} + + void ieee802_1x_deinit(struct hostapd_data *hapd) { eloop_cancel_timeout(ieee802_1x_rekey, hapd, NULL); @@ -1887,6 +2174,8 @@ void ieee802_1x_deinit(struct hostapd_data *hapd) eapol_auth_deinit(hapd->eapol_auth); hapd->eapol_auth = NULL; + + ieee802_1x_erp_flush(hapd); } @@ -2061,7 +2350,9 @@ int ieee802_1x_get_mib_sta(struct hostapd_data *hapd, struct sta_info *sta, { int len = 0, ret; struct eapol_state_machine *sm = sta->eapol_sm; - struct os_time t; + struct os_reltime diff; + const char *name1; + const char *name2; if (sm == NULL) return 0; @@ -2075,7 +2366,7 @@ int ieee802_1x_get_mib_sta(struct hostapd_data *hapd, struct sta_info *sta, sta->aid, EAPOL_VERSION, sm->initialize); - if (ret < 0 || (size_t) ret >= buflen - len) + if (os_snprintf_error(buflen - len, ret)) return len; len += ret; @@ -2103,7 +2394,7 @@ int ieee802_1x_get_mib_sta(struct hostapd_data *hapd, struct sta_info *sta, sm->reAuthPeriod, bool_txt(sm->reAuthEnabled), bool_txt(sm->keyTxEnabled)); - if (ret < 0 || (size_t) ret >= buflen - len) + if (os_snprintf_error(buflen - len, ret)) return len; len += ret; @@ -2133,7 +2424,7 @@ int ieee802_1x_get_mib_sta(struct hostapd_data *hapd, struct sta_info *sta, sm->dot1xAuthEapLengthErrorFramesRx, sm->dot1xAuthLastEapolFrameVersion, MAC2STR(sm->addr)); - if (ret < 0 || (size_t) ret >= buflen - len) + if (os_snprintf_error(buflen - len, ret)) return len; len += ret; @@ -2171,12 +2462,12 @@ int ieee802_1x_get_mib_sta(struct hostapd_data *hapd, struct sta_info *sta, sm->backendOtherRequestsToSupplicant, sm->backendAuthSuccesses, sm->backendAuthFails); - if (ret < 0 || (size_t) ret >= buflen - len) + if (os_snprintf_error(buflen - len, ret)) return len; len += ret; /* dot1xAuthSessionStatsTable */ - os_get_time(&t); + os_reltime_age(&sta->acct_session_start, &diff); ret = os_snprintf(buf + len, buflen - len, /* TODO: dot1xAuthSessionOctetsRx */ /* TODO: dot1xAuthSessionOctetsTx */ @@ -2191,9 +2482,30 @@ int ieee802_1x_get_mib_sta(struct hostapd_data *hapd, struct sta_info *sta, (wpa_key_mgmt_wpa_ieee8021x( wpa_auth_sta_key_mgmt(sta->wpa_sm))) ? 1 : 2, - (unsigned int) (t.sec - sta->acct_session_start), + (unsigned int) diff.sec, sm->identity); - if (ret < 0 || (size_t) ret >= buflen - len) + if (os_snprintf_error(buflen - len, ret)) + return len; + len += ret; + + if (sm->acct_multi_session_id_hi) { + ret = os_snprintf(buf + len, buflen - len, + "authMultiSessionId=%08X+%08X\n", + sm->acct_multi_session_id_hi, + sm->acct_multi_session_id_lo); + if (os_snprintf_error(buflen - len, ret)) + return len; + len += ret; + } + + name1 = eap_server_get_name(0, sm->eap_type_authsrv); + name2 = eap_server_get_name(0, sm->eap_type_supp); + ret = os_snprintf(buf + len, buflen - len, + "last_eap_type_as=%d (%s)\n" + "last_eap_type_sta=%d (%s)\n", + sm->eap_type_authsrv, name1, + sm->eap_type_supp, name2); + if (os_snprintf_error(buflen - len, ret)) return len; len += ret; @@ -2202,16 +2514,55 @@ int ieee802_1x_get_mib_sta(struct hostapd_data *hapd, struct sta_info *sta, static void ieee802_1x_finished(struct hostapd_data *hapd, - struct sta_info *sta, int success) + struct sta_info *sta, int success, + int remediation) { const u8 *key; size_t len; /* TODO: get PMKLifetime from WPA parameters */ static const int dot11RSNAConfigPMKLifetime = 43200; + unsigned int session_timeout; + +#ifdef CONFIG_HS20 + if (remediation && !sta->remediation) { + sta->remediation = 1; + os_free(sta->remediation_url); + sta->remediation_url = + os_strdup(hapd->conf->subscr_remediation_url); + sta->remediation_method = 1; /* SOAP-XML SPP */ + } + + if (success) { + if (sta->remediation) { + wpa_printf(MSG_DEBUG, "HS 2.0: Send WNM-Notification " + "to " MACSTR " to indicate Subscription " + "Remediation", + MAC2STR(sta->addr)); + hs20_send_wnm_notification(hapd, sta->addr, + sta->remediation_method, + sta->remediation_url); + os_free(sta->remediation_url); + sta->remediation_url = NULL; + } + + if (sta->hs20_deauth_req) { + wpa_printf(MSG_DEBUG, "HS 2.0: Send WNM-Notification " + "to " MACSTR " to indicate imminent " + "deauthentication", MAC2STR(sta->addr)); + hs20_send_wnm_notification_deauth_req( + hapd, sta->addr, sta->hs20_deauth_req); + } + } +#endif /* CONFIG_HS20 */ key = ieee802_1x_get_key(sta->eapol_sm, &len); - if (success && key && len >= PMK_LEN && - wpa_auth_pmksa_add(sta->wpa_sm, key, dot11RSNAConfigPMKLifetime, + if (sta->session_timeout_set) + session_timeout = sta->session_timeout; + else + session_timeout = dot11RSNAConfigPMKLifetime; + if (success && key && len >= PMK_LEN && !sta->remediation && + !sta->hs20_deauth_requested && + wpa_auth_pmksa_add(sta->wpa_sm, key, session_timeout, sta->eapol_sm) == 0) { hostapd_logger(hapd, sta->addr, HOSTAPD_MODULE_WPA, HOSTAPD_LEVEL_DEBUG, @@ -2238,5 +2589,6 @@ static void ieee802_1x_finished(struct hostapd_data *hapd, os_sleep(0, 10000); ap_sta_disconnect(hapd, sta, sta->addr, WLAN_REASON_IEEE_802_1X_AUTH_FAILED); + hostapd_wps_eap_completed(hapd); } } |