/*
* Interworking (IEEE 802.11u)
- * Copyright (c) 2011, Qualcomm Atheros
+ * Copyright (c) 2011-2012, Qualcomm Atheros, Inc.
*
* This software may be distributed under the terms of the BSD license.
* See README for more details.
#include "common/ieee802_11_defs.h"
#include "common/gas.h"
#include "common/wpa_ctrl.h"
+#include "utils/pcsc_funcs.h"
#include "drivers/driver.h"
#include "eap_common/eap_defs.h"
+#include "eap_peer/eap.h"
#include "eap_peer/eap_methods.h"
#include "wpa_supplicant_i.h"
#include "config.h"
+#include "config_ssid.h"
#include "bss.h"
#include "scan.h"
#include "notify.h"
#include "gas_query.h"
+#include "hs20_supplicant.h"
#include "interworking.h"
static void interworking_next_anqp_fetch(struct wpa_supplicant *wpa_s);
+static void interworking_reconnect(struct wpa_supplicant *wpa_s)
+{
+ if (wpa_s->wpa_state >= WPA_AUTHENTICATING) {
+ wpa_supplicant_cancel_sched_scan(wpa_s);
+ wpa_supplicant_deauthenticate(wpa_s,
+ WLAN_REASON_DEAUTH_LEAVING);
+ }
+ wpa_s->disconnected = 0;
+ wpa_s->reassociate = 1;
+ wpa_supplicant_req_scan(wpa_s, 0, 0);
+}
+
+
static struct wpabuf * anqp_build_req(u16 info_ids[], size_t num_ids,
struct wpabuf *extra)
{
wpa_printf(MSG_DEBUG, "Interworking: ANQP Query Request to " MACSTR,
MAC2STR(bss->bssid));
+#ifdef CONFIG_HS20
+ if (wpa_bss_get_vendor_ie(bss, HS20_IE_VENDOR_TYPE)) {
+ u8 *len_pos;
+
+ extra = wpabuf_alloc(100);
+ if (!extra)
+ return -1;
+
+ len_pos = gas_anqp_add_element(extra, ANQP_VENDOR_SPECIFIC);
+ wpabuf_put_be24(extra, OUI_WFA);
+ wpabuf_put_u8(extra, HS20_ANQP_OUI_TYPE);
+ wpabuf_put_u8(extra, HS20_STYPE_QUERY_LIST);
+ wpabuf_put_u8(extra, 0); /* Reserved */
+ wpabuf_put_u8(extra, HS20_STYPE_CAPABILITY_LIST);
+ wpabuf_put_u8(extra, HS20_STYPE_OPERATOR_FRIENDLY_NAME);
+ wpabuf_put_u8(extra, HS20_STYPE_WAN_METRICS);
+ wpabuf_put_u8(extra, HS20_STYPE_CONNECTION_CAPABILITY);
+ wpabuf_put_u8(extra, HS20_STYPE_OPERATING_CLASS);
+ gas_anqp_set_element_len(extra, len_pos);
+ }
+#endif /* CONFIG_HS20 */
+
buf = anqp_build_req(info_ids, sizeof(info_ids) / sizeof(info_ids[0]),
extra);
wpabuf_free(extra);
wpa_printf(MSG_DEBUG, "No room for EAP Methods");
return NULL;
}
- r->eap = os_zalloc(r->eap_count * sizeof(struct nai_realm_eap));
+ r->eap = os_calloc(r->eap_count, sizeof(struct nai_realm_eap));
if (r->eap == NULL)
return NULL;
return NULL;
}
- realm = os_zalloc(num * sizeof(struct nai_realm));
+ realm = os_calloc(num, sizeof(struct nai_realm));
if (realm == NULL)
return NULL;
}
-static struct nai_realm_eap * nai_realm_find_eap(struct wpa_supplicant *wpa_s,
+static int nai_realm_cred_cert(struct nai_realm_eap *eap)
+{
+ if (eap_get_name(EAP_VENDOR_IETF, eap->method) == NULL)
+ return 0; /* method not supported */
+
+ if (eap->method != EAP_TYPE_TLS) {
+ /* Only EAP-TLS supported for credential authentication */
+ return 0;
+ }
+
+ return 1;
+}
+
+
+static struct nai_realm_eap * nai_realm_find_eap(struct wpa_cred *cred,
struct nai_realm *realm)
{
u8 e;
- if (wpa_s->conf->home_username == NULL ||
- wpa_s->conf->home_username[0] == '\0' ||
- wpa_s->conf->home_password == NULL ||
- wpa_s->conf->home_password[0] == '\0')
+ if (cred == NULL ||
+ cred->username == NULL ||
+ cred->username[0] == '\0' ||
+ ((cred->password == NULL ||
+ cred->password[0] == '\0') &&
+ (cred->private_key == NULL ||
+ cred->private_key[0] == '\0')))
return NULL;
for (e = 0; e < realm->eap_count; e++) {
struct nai_realm_eap *eap = &realm->eap[e];
- if (nai_realm_cred_username(eap))
+ if (cred->password && cred->password[0] &&
+ nai_realm_cred_username(eap))
+ return eap;
+ if (cred->private_key && cred->private_key[0] &&
+ nai_realm_cred_cert(eap))
return eap;
}
#ifdef INTERWORKING_3GPP
-static int plmn_id_match(struct wpabuf *anqp, const char *imsi)
+static int plmn_id_match(struct wpabuf *anqp, const char *imsi, int mnc_len)
{
- const char *sep;
u8 plmn[3];
const u8 *pos, *end;
u8 udhl;
- sep = os_strchr(imsi, '-');
- if (sep == NULL || (sep - imsi != 5 && sep - imsi != 6))
- return 0;
-
/* See Annex A of 3GPP TS 24.234 v8.1.0 for description */
plmn[0] = (imsi[0] - '0') | ((imsi[1] - '0') << 4);
plmn[1] = imsi[2] - '0';
- if (sep - imsi == 6)
+ /* default to MNC length 3 if unknown */
+ if (mnc_len != 2)
plmn[1] |= (imsi[5] - '0') << 4;
else
plmn[1] |= 0xf0;
break;
if (os_memcmp(pos, plmn, 3) == 0)
return 1; /* Found matching PLMN */
+ pos += 3;
}
}
}
-static int set_root_nai(struct wpa_ssid *ssid, const char *imsi, char prefix)
+static int build_root_nai(char *nai, size_t nai_len, const char *imsi,
+ size_t mnc_len, char prefix)
{
const char *sep, *msin;
- char nai[100], *end, *pos;
+ char *end, *pos;
size_t msin_len, plmn_len;
/*
return -1;
}
sep = os_strchr(imsi, '-');
- if (sep == NULL)
+ if (sep) {
+ plmn_len = sep - imsi;
+ msin = sep + 1;
+ } else if (mnc_len && os_strlen(imsi) >= 3 + mnc_len) {
+ plmn_len = 3 + mnc_len;
+ msin = imsi + plmn_len;
+ } else
return -1;
- plmn_len = sep - imsi;
if (plmn_len != 5 && plmn_len != 6)
return -1;
- msin = sep + 1;
msin_len = os_strlen(msin);
pos = nai;
- end = pos + sizeof(nai);
- *pos++ = prefix;
+ end = nai + nai_len;
+ if (prefix)
+ *pos++ = prefix;
os_memcpy(pos, imsi, plmn_len);
pos += plmn_len;
os_memcpy(pos, msin, msin_len);
pos += os_snprintf(pos, end - pos, ".mcc%c%c%c.3gppnetwork.org",
imsi[0], imsi[1], imsi[2]);
+ return 0;
+}
+
+
+static int set_root_nai(struct wpa_ssid *ssid, const char *imsi, char prefix)
+{
+ char nai[100];
+ if (build_root_nai(nai, sizeof(nai), imsi, 0, prefix) < 0)
+ return -1;
return wpa_config_set_quoted(ssid, "identity", nai);
}
#endif /* INTERWORKING_3GPP */
+static int interworking_set_hs20_params(struct wpa_ssid *ssid)
+{
+ if (wpa_config_set(ssid, "key_mgmt", "WPA-EAP", 0) < 0)
+ return -1;
+ if (wpa_config_set(ssid, "proto", "RSN", 0) < 0)
+ return -1;
+ if (wpa_config_set(ssid, "pairwise", "CCMP", 0) < 0)
+ return -1;
+ return 0;
+}
+
+
static int interworking_connect_3gpp(struct wpa_supplicant *wpa_s,
struct wpa_bss *bss)
{
#ifdef INTERWORKING_3GPP
+ struct wpa_cred *cred;
struct wpa_ssid *ssid;
const u8 *ie;
+ if (bss->anqp_3gpp == NULL)
+ return -1;
+
+ for (cred = wpa_s->conf->cred; cred; cred = cred->next) {
+ char *sep;
+ const char *imsi;
+ int mnc_len;
+
+#ifdef PCSC_FUNCS
+ if (cred->pcsc && wpa_s->conf->pcsc_reader && wpa_s->scard &&
+ wpa_s->imsi[0]) {
+ imsi = wpa_s->imsi;
+ mnc_len = wpa_s->mnc_len;
+ goto compare;
+ }
+#endif /* PCSC_FUNCS */
+
+ if (cred->imsi == NULL || !cred->imsi[0] ||
+ cred->milenage == NULL || !cred->milenage[0])
+ continue;
+
+ sep = os_strchr(cred->imsi, '-');
+ if (sep == NULL ||
+ (sep - cred->imsi != 5 && sep - cred->imsi != 6))
+ continue;
+ mnc_len = sep - cred->imsi - 3;
+ imsi = cred->imsi;
+
+#ifdef PCSC_FUNCS
+ compare:
+#endif /* PCSC_FUNCS */
+ if (plmn_id_match(bss->anqp_3gpp, imsi, mnc_len))
+ break;
+ }
+ if (cred == NULL)
+ return -1;
+
ie = wpa_bss_get_ie(bss, WLAN_EID_SSID);
if (ie == NULL)
return -1;
wpas_notify_network_added(wpa_s, ssid);
wpa_config_set_network_defaults(ssid);
+ ssid->priority = cred->priority;
ssid->temporary = 1;
ssid->ssid = os_zalloc(ie[1] + 1);
if (ssid->ssid == NULL)
os_memcpy(ssid->ssid, ie + 2, ie[1]);
ssid->ssid_len = ie[1];
+ if (interworking_set_hs20_params(ssid) < 0)
+ goto fail;
+
/* TODO: figure out whether to use EAP-SIM, EAP-AKA, or EAP-AKA' */
if (wpa_config_set(ssid, "eap", "SIM", 0) < 0) {
wpa_printf(MSG_DEBUG, "EAP-SIM not supported");
goto fail;
}
- if (set_root_nai(ssid, wpa_s->conf->home_imsi, '1') < 0) {
+ if (cred->pcsc && wpa_s->scard && scard_supports_umts(wpa_s->scard))
+ wpa_config_set(ssid, "eap", "AKA", 0);
+ if (!cred->pcsc && set_root_nai(ssid, cred->imsi, '1') < 0) {
wpa_printf(MSG_DEBUG, "Failed to set Root NAI");
goto fail;
}
- if (wpa_s->conf->home_milenage && wpa_s->conf->home_milenage[0]) {
+ if (cred->milenage && cred->milenage[0]) {
if (wpa_config_set_quoted(ssid, "password",
- wpa_s->conf->home_milenage) < 0)
+ cred->milenage) < 0)
goto fail;
- } else {
- /* TODO: PIN */
+ } else if (cred->pcsc) {
if (wpa_config_set_quoted(ssid, "pcsc", "") < 0)
goto fail;
+ if (wpa_s->conf->pcsc_pin &&
+ wpa_config_set_quoted(ssid, "pin", wpa_s->conf->pcsc_pin)
+ < 0)
+ goto fail;
}
- if (wpa_s->conf->home_password && wpa_s->conf->home_password[0] &&
- wpa_config_set_quoted(ssid, "password", wpa_s->conf->home_password)
- < 0)
+ if (cred->password && cred->password[0] &&
+ wpa_config_set_quoted(ssid, "password", cred->password) < 0)
goto fail;
- wpa_supplicant_select_network(wpa_s, ssid);
+ wpa_config_update_prio_list(wpa_s->conf);
+ interworking_reconnect(wpa_s);
return 0;
}
+static int roaming_consortium_element_match(const u8 *ie, const u8 *rc_id,
+ size_t rc_len)
+{
+ const u8 *pos, *end;
+ u8 lens;
+
+ if (ie == NULL)
+ return 0;
+
+ pos = ie + 2;
+ end = ie + 2 + ie[1];
+
+ /* Roaming Consortium element:
+ * Number of ANQP OIs
+ * OI #1 and #2 lengths
+ * OI #1, [OI #2], [OI #3]
+ */
+
+ if (pos + 2 > end)
+ return 0;
+
+ pos++; /* skip Number of ANQP OIs */
+ lens = *pos++;
+ if (pos + (lens & 0x0f) + (lens >> 4) > end)
+ return 0;
+
+ if ((lens & 0x0f) == rc_len && os_memcmp(pos, rc_id, rc_len) == 0)
+ return 1;
+ pos += lens & 0x0f;
+
+ if ((lens >> 4) == rc_len && os_memcmp(pos, rc_id, rc_len) == 0)
+ return 1;
+ pos += lens >> 4;
+
+ if (pos < end && (size_t) (end - pos) == rc_len &&
+ os_memcmp(pos, rc_id, rc_len) == 0)
+ return 1;
+
+ return 0;
+}
+
+
+static int roaming_consortium_anqp_match(const struct wpabuf *anqp,
+ const u8 *rc_id, size_t rc_len)
+{
+ const u8 *pos, *end;
+ u8 len;
+
+ if (anqp == NULL)
+ return 0;
+
+ pos = wpabuf_head(anqp);
+ end = pos + wpabuf_len(anqp);
+
+ /* Set of <OI Length, OI> duples */
+ while (pos < end) {
+ len = *pos++;
+ if (pos + len > end)
+ break;
+ if (len == rc_len && os_memcmp(pos, rc_id, rc_len) == 0)
+ return 1;
+ pos += len;
+ }
+
+ return 0;
+}
+
+
+static int roaming_consortium_match(const u8 *ie, const struct wpabuf *anqp,
+ const u8 *rc_id, size_t rc_len)
+{
+ return roaming_consortium_element_match(ie, rc_id, rc_len) ||
+ roaming_consortium_anqp_match(anqp, rc_id, rc_len);
+}
+
+
+static struct wpa_cred * interworking_credentials_available_roaming_consortium(
+ struct wpa_supplicant *wpa_s, struct wpa_bss *bss)
+{
+ struct wpa_cred *cred, *selected = NULL;
+ const u8 *ie;
+
+ ie = wpa_bss_get_ie(bss, WLAN_EID_ROAMING_CONSORTIUM);
+
+ if (ie == NULL && bss->anqp_roaming_consortium == NULL)
+ return NULL;
+
+ if (wpa_s->conf->cred == NULL)
+ return NULL;
+
+ for (cred = wpa_s->conf->cred; cred; cred = cred->next) {
+ if (cred->roaming_consortium_len == 0)
+ continue;
+
+ if (!roaming_consortium_match(ie, bss->anqp_roaming_consortium,
+ cred->roaming_consortium,
+ cred->roaming_consortium_len))
+ continue;
+
+ if (selected == NULL ||
+ selected->priority < cred->priority)
+ selected = cred;
+ }
+
+ return selected;
+}
+
+
+static int interworking_set_eap_params(struct wpa_ssid *ssid,
+ struct wpa_cred *cred, int ttls)
+{
+ if (cred->eap_method) {
+ ttls = cred->eap_method->vendor == EAP_VENDOR_IETF &&
+ cred->eap_method->method == EAP_TYPE_TTLS;
+
+ os_free(ssid->eap.eap_methods);
+ ssid->eap.eap_methods =
+ os_malloc(sizeof(struct eap_method_type) * 2);
+ if (ssid->eap.eap_methods == NULL)
+ return -1;
+ os_memcpy(ssid->eap.eap_methods, cred->eap_method,
+ sizeof(*cred->eap_method));
+ ssid->eap.eap_methods[1].vendor = EAP_VENDOR_IETF;
+ ssid->eap.eap_methods[1].method = EAP_TYPE_NONE;
+ }
+
+ if (ttls && cred->username && cred->username[0]) {
+ const char *pos;
+ char *anon;
+ /* Use anonymous NAI in Phase 1 */
+ pos = os_strchr(cred->username, '@');
+ if (pos) {
+ size_t buflen = 9 + os_strlen(pos) + 1;
+ anon = os_malloc(buflen);
+ if (anon == NULL)
+ return -1;
+ os_snprintf(anon, buflen, "anonymous%s", pos);
+ } else if (cred->realm) {
+ size_t buflen = 10 + os_strlen(cred->realm) + 1;
+ anon = os_malloc(buflen);
+ if (anon == NULL)
+ return -1;
+ os_snprintf(anon, buflen, "anonymous@%s", cred->realm);
+ } else {
+ anon = os_strdup("anonymous");
+ if (anon == NULL)
+ return -1;
+ }
+ if (wpa_config_set_quoted(ssid, "anonymous_identity", anon) <
+ 0) {
+ os_free(anon);
+ return -1;
+ }
+ os_free(anon);
+ }
+
+ if (cred->username && cred->username[0] &&
+ wpa_config_set_quoted(ssid, "identity", cred->username) < 0)
+ return -1;
+
+ if (cred->password && cred->password[0]) {
+ if (cred->ext_password &&
+ wpa_config_set(ssid, "password", cred->password, 0) < 0)
+ return -1;
+ if (!cred->ext_password &&
+ wpa_config_set_quoted(ssid, "password", cred->password) <
+ 0)
+ return -1;
+ }
+
+ if (cred->client_cert && cred->client_cert[0] &&
+ wpa_config_set_quoted(ssid, "client_cert", cred->client_cert) < 0)
+ return -1;
+
+ if (cred->private_key && cred->private_key[0] &&
+ wpa_config_set_quoted(ssid, "private_key", cred->private_key) < 0)
+ return -1;
+
+ if (cred->private_key_passwd && cred->private_key_passwd[0] &&
+ wpa_config_set_quoted(ssid, "private_key_passwd",
+ cred->private_key_passwd) < 0)
+ return -1;
+
+ if (cred->phase1) {
+ os_free(ssid->eap.phase1);
+ ssid->eap.phase1 = os_strdup(cred->phase1);
+ }
+ if (cred->phase2) {
+ os_free(ssid->eap.phase2);
+ ssid->eap.phase2 = os_strdup(cred->phase2);
+ }
+
+ if (cred->ca_cert && cred->ca_cert[0] &&
+ wpa_config_set_quoted(ssid, "ca_cert", cred->ca_cert) < 0)
+ return -1;
+
+ return 0;
+}
+
+
+static int interworking_connect_roaming_consortium(
+ struct wpa_supplicant *wpa_s, struct wpa_cred *cred,
+ struct wpa_bss *bss, const u8 *ssid_ie)
+{
+ struct wpa_ssid *ssid;
+
+ wpa_printf(MSG_DEBUG, "Interworking: Connect with " MACSTR " based on "
+ "roaming consortium match", MAC2STR(bss->bssid));
+
+ ssid = wpa_config_add_network(wpa_s->conf);
+ if (ssid == NULL)
+ return -1;
+ wpas_notify_network_added(wpa_s, ssid);
+ wpa_config_set_network_defaults(ssid);
+ ssid->priority = cred->priority;
+ ssid->temporary = 1;
+ ssid->ssid = os_zalloc(ssid_ie[1] + 1);
+ if (ssid->ssid == NULL)
+ goto fail;
+ os_memcpy(ssid->ssid, ssid_ie + 2, ssid_ie[1]);
+ ssid->ssid_len = ssid_ie[1];
+
+ if (interworking_set_hs20_params(ssid) < 0)
+ goto fail;
+
+ if (cred->eap_method == NULL) {
+ wpa_printf(MSG_DEBUG, "Interworking: No EAP method set for "
+ "credential using roaming consortium");
+ goto fail;
+ }
+
+ if (interworking_set_eap_params(
+ ssid, cred,
+ cred->eap_method->vendor == EAP_VENDOR_IETF &&
+ cred->eap_method->method == EAP_TYPE_TTLS) < 0)
+ goto fail;
+
+ wpa_config_update_prio_list(wpa_s->conf);
+ interworking_reconnect(wpa_s);
+
+ return 0;
+
+fail:
+ wpas_notify_network_removed(wpa_s, ssid);
+ wpa_config_remove_network(wpa_s->conf, ssid->id);
+ return -1;
+}
+
+
int interworking_connect(struct wpa_supplicant *wpa_s, struct wpa_bss *bss)
{
+ struct wpa_cred *cred;
struct wpa_ssid *ssid;
struct nai_realm *realm;
struct nai_realm_eap *eap = NULL;
char buf[100];
const u8 *ie;
- if (bss == NULL)
+ if (wpa_s->conf->cred == NULL || bss == NULL)
return -1;
ie = wpa_bss_get_ie(bss, WLAN_EID_SSID);
if (ie == NULL || ie[1] == 0) {
return -1;
}
+ if (!wpa_bss_get_ie(bss, WLAN_EID_RSN)) {
+ /*
+ * We currently support only HS 2.0 networks and those are
+ * required to use WPA2-Enterprise.
+ */
+ wpa_printf(MSG_DEBUG, "Interworking: Network does not use "
+ "RSN");
+ return -1;
+ }
+
+ cred = interworking_credentials_available_roaming_consortium(wpa_s,
+ bss);
+ if (cred)
+ return interworking_connect_roaming_consortium(wpa_s, cred,
+ bss, ie);
+
realm = nai_realm_parse(bss->anqp_nai_realm, &count);
if (realm == NULL) {
wpa_printf(MSG_DEBUG, "Interworking: Could not parse NAI "
count = 0;
}
- for (i = 0; i < count; i++) {
- if (!nai_realm_match(&realm[i], wpa_s->conf->home_realm))
- continue;
- eap = nai_realm_find_eap(wpa_s, &realm[i]);
+ for (cred = wpa_s->conf->cred; cred; cred = cred->next) {
+ for (i = 0; i < count; i++) {
+ if (!nai_realm_match(&realm[i], cred->realm))
+ continue;
+ eap = nai_realm_find_eap(cred, &realm[i]);
+ if (eap)
+ break;
+ }
if (eap)
break;
}
}
wpas_notify_network_added(wpa_s, ssid);
wpa_config_set_network_defaults(ssid);
+ ssid->priority = cred->priority;
ssid->temporary = 1;
ssid->ssid = os_zalloc(ie[1] + 1);
if (ssid->ssid == NULL)
os_memcpy(ssid->ssid, ie + 2, ie[1]);
ssid->ssid_len = ie[1];
- if (wpa_config_set(ssid, "eap", eap_get_name(EAP_VENDOR_IETF,
- eap->method), 0) < 0)
- goto fail;
-
- if (wpa_s->conf->home_username && wpa_s->conf->home_username[0] &&
- wpa_config_set_quoted(ssid, "identity",
- wpa_s->conf->home_username) < 0)
+ if (interworking_set_hs20_params(ssid) < 0)
goto fail;
- if (wpa_s->conf->home_password && wpa_s->conf->home_password[0] &&
- wpa_config_set_quoted(ssid, "password", wpa_s->conf->home_password)
- < 0)
+ if (wpa_config_set(ssid, "eap", eap_get_name(EAP_VENDOR_IETF,
+ eap->method), 0) < 0)
goto fail;
switch (eap->method) {
if (wpa_config_set(ssid, "phase2", buf, 0) < 0)
goto fail;
break;
+ case EAP_TYPE_TLS:
+ break;
}
- if (wpa_s->conf->home_ca_cert && wpa_s->conf->home_ca_cert[0] &&
- wpa_config_set_quoted(ssid, "ca_cert", wpa_s->conf->home_ca_cert) <
- 0)
+ if (interworking_set_eap_params(ssid, cred,
+ eap->method == EAP_TYPE_TTLS) < 0)
goto fail;
nai_realm_free(realm, count);
- wpa_supplicant_select_network(wpa_s, ssid);
+ wpa_config_update_prio_list(wpa_s->conf);
+ interworking_reconnect(wpa_s);
return 0;
}
-static int interworking_credentials_available_3gpp(
+static struct wpa_cred * interworking_credentials_available_3gpp(
struct wpa_supplicant *wpa_s, struct wpa_bss *bss)
{
- int ret = 0;
+ struct wpa_cred *cred, *selected = NULL;
+ int ret;
#ifdef INTERWORKING_3GPP
if (bss->anqp_3gpp == NULL)
- return ret;
+ return NULL;
- if (wpa_s->conf->home_imsi == NULL || !wpa_s->conf->home_imsi[0] ||
- wpa_s->conf->home_milenage == NULL ||
- !wpa_s->conf->home_milenage[0])
- return ret;
+ for (cred = wpa_s->conf->cred; cred; cred = cred->next) {
+ char *sep;
+ const char *imsi;
+ int mnc_len;
+
+#ifdef PCSC_FUNCS
+ if (cred->pcsc && wpa_s->conf->pcsc_reader && wpa_s->scard &&
+ wpa_s->imsi[0]) {
+ imsi = wpa_s->imsi;
+ mnc_len = wpa_s->mnc_len;
+ goto compare;
+ }
+#endif /* PCSC_FUNCS */
- wpa_printf(MSG_DEBUG, "Interworking: Parsing 3GPP info from " MACSTR,
- MAC2STR(bss->bssid));
- ret = plmn_id_match(bss->anqp_3gpp, wpa_s->conf->home_imsi);
- wpa_printf(MSG_DEBUG, "PLMN match %sfound", ret ? "" : "not ");
+ if (cred->imsi == NULL || !cred->imsi[0] ||
+ cred->milenage == NULL || !cred->milenage[0])
+ continue;
+
+ sep = os_strchr(cred->imsi, '-');
+ if (sep == NULL ||
+ (sep - cred->imsi != 5 && sep - cred->imsi != 6))
+ continue;
+ mnc_len = sep - cred->imsi - 3;
+ imsi = cred->imsi;
+
+#ifdef PCSC_FUNCS
+ compare:
+#endif /* PCSC_FUNCS */
+ wpa_printf(MSG_DEBUG, "Interworking: Parsing 3GPP info from "
+ MACSTR, MAC2STR(bss->bssid));
+ ret = plmn_id_match(bss->anqp_3gpp, imsi, mnc_len);
+ wpa_printf(MSG_DEBUG, "PLMN match %sfound", ret ? "" : "not ");
+ if (ret) {
+ if (selected == NULL ||
+ selected->priority < cred->priority)
+ selected = cred;
+ }
+ }
#endif /* INTERWORKING_3GPP */
- return ret;
+ return selected;
}
-static int interworking_credentials_available_realm(
+static struct wpa_cred * interworking_credentials_available_realm(
struct wpa_supplicant *wpa_s, struct wpa_bss *bss)
{
+ struct wpa_cred *cred, *selected = NULL;
struct nai_realm *realm;
u16 count, i;
- int found = 0;
if (bss->anqp_nai_realm == NULL)
- return 0;
+ return NULL;
- if (wpa_s->conf->home_realm == NULL)
- return 0;
+ if (wpa_s->conf->cred == NULL)
+ return NULL;
wpa_printf(MSG_DEBUG, "Interworking: Parsing NAI Realm list from "
MACSTR, MAC2STR(bss->bssid));
if (realm == NULL) {
wpa_printf(MSG_DEBUG, "Interworking: Could not parse NAI "
"Realm list from " MACSTR, MAC2STR(bss->bssid));
- return 0;
+ return NULL;
}
- for (i = 0; i < count; i++) {
- if (!nai_realm_match(&realm[i], wpa_s->conf->home_realm))
+ for (cred = wpa_s->conf->cred; cred; cred = cred->next) {
+ if (cred->realm == NULL)
continue;
- if (nai_realm_find_eap(wpa_s, &realm[i])) {
- found++;
- break;
+
+ for (i = 0; i < count; i++) {
+ if (!nai_realm_match(&realm[i], cred->realm))
+ continue;
+ if (nai_realm_find_eap(cred, &realm[i])) {
+ if (selected == NULL ||
+ selected->priority < cred->priority)
+ selected = cred;
+ break;
+ }
}
}
nai_realm_free(realm, count);
- return found;
+ return selected;
+}
+
+
+static struct wpa_cred * interworking_credentials_available(
+ struct wpa_supplicant *wpa_s, struct wpa_bss *bss)
+{
+ struct wpa_cred *cred, *cred2;
+
+ cred = interworking_credentials_available_realm(wpa_s, bss);
+ cred2 = interworking_credentials_available_3gpp(wpa_s, bss);
+ if (cred && cred2 && cred2->priority >= cred->priority)
+ cred = cred2;
+ if (!cred)
+ cred = cred2;
+
+ cred2 = interworking_credentials_available_roaming_consortium(wpa_s,
+ bss);
+ if (cred && cred2 && cred2->priority >= cred->priority)
+ cred = cred2;
+ if (!cred)
+ cred = cred2;
+
+ return cred;
}
-static int interworking_credentials_available(struct wpa_supplicant *wpa_s,
- struct wpa_bss *bss)
+static int domain_name_list_contains(struct wpabuf *domain_names,
+ const char *domain)
{
- return interworking_credentials_available_realm(wpa_s, bss) ||
- interworking_credentials_available_3gpp(wpa_s, bss);
+ const u8 *pos, *end;
+ size_t len;
+
+ len = os_strlen(domain);
+ pos = wpabuf_head(domain_names);
+ end = pos + wpabuf_len(domain_names);
+
+ while (pos + 1 < end) {
+ if (pos + 1 + pos[0] > end)
+ break;
+
+ wpa_hexdump_ascii(MSG_DEBUG, "Interworking: AP domain name",
+ pos + 1, pos[0]);
+ if (pos[0] == len &&
+ os_strncasecmp(domain, (const char *) (pos + 1), len) == 0)
+ return 1;
+
+ pos += 1 + pos[0];
+ }
+
+ return 0;
+}
+
+
+static int interworking_home_sp(struct wpa_supplicant *wpa_s,
+ struct wpabuf *domain_names)
+{
+ struct wpa_cred *cred;
+#ifdef INTERWORKING_3GPP
+ char nai[100], *realm;
+#endif /* INTERWORKING_3GPP */
+
+ if (domain_names == NULL || wpa_s->conf->cred == NULL)
+ return -1;
+
+ for (cred = wpa_s->conf->cred; cred; cred = cred->next) {
+#ifdef INTERWORKING_3GPP
+ char *imsi = NULL;
+ int mnc_len = 0;
+ if (cred->imsi)
+ imsi = cred->imsi;
+ else if (cred->pcsc && wpa_s->conf->pcsc_reader &&
+ wpa_s->scard && wpa_s->imsi[0]) {
+ imsi = wpa_s->imsi;
+ mnc_len = wpa_s->mnc_len;
+ }
+ if (imsi && build_root_nai(nai, sizeof(nai), imsi, mnc_len, 0)
+ == 0) {
+ realm = os_strchr(nai, '@');
+ if (realm)
+ realm++;
+ wpa_printf(MSG_DEBUG, "Interworking: Search for match "
+ "with SIM/USIM domain %s", realm);
+ if (realm &&
+ domain_name_list_contains(domain_names, realm))
+ return 1;
+ }
+#endif /* INTERWORKING_3GPP */
+
+ if (cred->domain == NULL)
+ continue;
+
+ wpa_printf(MSG_DEBUG, "Interworking: Search for match with "
+ "home SP FQDN %s", cred->domain);
+ if (domain_name_list_contains(domain_names, cred->domain))
+ return 1;
+ }
+
+ return 0;
+}
+
+
+static int interworking_find_network_match(struct wpa_supplicant *wpa_s)
+{
+ struct wpa_bss *bss;
+ struct wpa_ssid *ssid;
+
+ dl_list_for_each(bss, &wpa_s->bss, struct wpa_bss, list) {
+ for (ssid = wpa_s->conf->ssid; ssid; ssid = ssid->next) {
+ if (wpas_network_disabled(wpa_s, ssid) ||
+ ssid->mode != WPAS_MODE_INFRA)
+ continue;
+ if (ssid->ssid_len != bss->ssid_len ||
+ os_memcmp(ssid->ssid, bss->ssid, ssid->ssid_len) !=
+ 0)
+ continue;
+ /*
+ * TODO: Consider more accurate matching of security
+ * configuration similarly to what is done in events.c
+ */
+ return 1;
+ }
+ }
+
+ return 0;
}
static void interworking_select_network(struct wpa_supplicant *wpa_s)
{
- struct wpa_bss *bss, *selected = NULL;
+ struct wpa_bss *bss, *selected = NULL, *selected_home = NULL;
+ int selected_prio = -999999, selected_home_prio = -999999;
unsigned int count = 0;
+ const char *type;
+ int res;
+ struct wpa_cred *cred;
wpa_s->network_select = 0;
dl_list_for_each(bss, &wpa_s->bss, struct wpa_bss, list) {
- if (!interworking_credentials_available(wpa_s, bss))
+ cred = interworking_credentials_available(wpa_s, bss);
+ if (!cred)
continue;
+ if (!wpa_bss_get_ie(bss, WLAN_EID_RSN)) {
+ /*
+ * We currently support only HS 2.0 networks and those
+ * are required to use WPA2-Enterprise.
+ */
+ wpa_printf(MSG_DEBUG, "Interworking: Credential match "
+ "with " MACSTR " but network does not use "
+ "RSN", MAC2STR(bss->bssid));
+ continue;
+ }
count++;
- wpa_msg(wpa_s, MSG_INFO, INTERWORKING_AP MACSTR,
- MAC2STR(bss->bssid));
- if (selected == NULL && wpa_s->auto_select)
- selected = bss;
+ res = interworking_home_sp(wpa_s, bss->anqp_domain_name);
+ if (res > 0)
+ type = "home";
+ else if (res == 0)
+ type = "roaming";
+ else
+ type = "unknown";
+ wpa_msg(wpa_s, MSG_INFO, INTERWORKING_AP MACSTR " type=%s",
+ MAC2STR(bss->bssid), type);
+ if (wpa_s->auto_select ||
+ (wpa_s->conf->auto_interworking &&
+ wpa_s->auto_network_select)) {
+ if (selected == NULL ||
+ cred->priority > selected_prio) {
+ selected = bss;
+ selected_prio = cred->priority;
+ }
+ if (res > 0 &&
+ (selected_home == NULL ||
+ cred->priority > selected_home_prio)) {
+ selected_home = bss;
+ selected_home_prio = cred->priority;
+ }
+ }
+ }
+
+ if (selected_home && selected_home != selected &&
+ selected_home_prio >= selected_prio) {
+ /* Prefer network operated by the Home SP */
+ selected = selected_home;
}
if (count == 0) {
+ /*
+ * No matching network was found based on configured
+ * credentials. Check whether any of the enabled network blocks
+ * have matching APs.
+ */
+ if (interworking_find_network_match(wpa_s)) {
+ wpa_printf(MSG_DEBUG, "Interworking: Possible BSS "
+ "match for enabled network configurations");
+ if (wpa_s->auto_select)
+ interworking_reconnect(wpa_s);
+ return;
+ }
+
+ if (wpa_s->auto_network_select) {
+ wpa_printf(MSG_DEBUG, "Interworking: Continue "
+ "scanning after ANQP fetch");
+ wpa_supplicant_req_scan(wpa_s, wpa_s->scan_interval,
+ 0);
+ return;
+ }
+
wpa_msg(wpa_s, MSG_INFO, INTERWORKING_NO_MATCH "No network "
"with matching credentials found");
}
}
-static void interworking_start_fetch_anqp(struct wpa_supplicant *wpa_s)
+void interworking_start_fetch_anqp(struct wpa_supplicant *wpa_s)
{
struct wpa_bss *bss;
{
const u8 *pos = data;
struct wpa_bss *bss = wpa_bss_get_bssid(wpa_s, sa);
+#ifdef CONFIG_HS20
+ u8 type;
+#endif /* CONFIG_HS20 */
switch (info_id) {
case ANQP_CAPABILITY_LIST:
return;
switch (WPA_GET_BE24(pos)) {
+#ifdef CONFIG_HS20
+ case OUI_WFA:
+ pos += 3;
+ slen -= 3;
+
+ if (slen < 1)
+ return;
+ type = *pos++;
+ slen--;
+
+ switch (type) {
+ case HS20_ANQP_OUI_TYPE:
+ hs20_parse_rx_hs20_anqp_resp(wpa_s, sa, pos,
+ slen);
+ break;
+ default:
+ wpa_printf(MSG_DEBUG, "HS20: Unsupported ANQP "
+ "vendor type %u", type);
+ break;
+ }
+ break;
+#endif /* CONFIG_HS20 */
default:
wpa_printf(MSG_DEBUG, "Interworking: Unsupported "
"vendor-specific ANQP OUI %06x",
{
interworking_stop_fetch_anqp(wpa_s);
wpa_s->network_select = 1;
+ wpa_s->auto_network_select = 0;
wpa_s->auto_select = !!auto_select;
wpa_printf(MSG_DEBUG, "Interworking: Start scan for network "
"selection");
return 0;
}
+
+
+static void gas_resp_cb(void *ctx, const u8 *addr, u8 dialog_token,
+ enum gas_query_result result,
+ const struct wpabuf *adv_proto,
+ const struct wpabuf *resp, u16 status_code)
+{
+ struct wpa_supplicant *wpa_s = ctx;
+
+ wpa_msg(wpa_s, MSG_INFO, GAS_RESPONSE_INFO "addr=" MACSTR
+ " dialog_token=%d status_code=%d resp_len=%d",
+ MAC2STR(addr), dialog_token, status_code,
+ resp ? (int) wpabuf_len(resp) : -1);
+ if (!resp)
+ return;
+
+ wpabuf_free(wpa_s->last_gas_resp);
+ wpa_s->last_gas_resp = wpabuf_dup(resp);
+ if (wpa_s->last_gas_resp == NULL)
+ return;
+ os_memcpy(wpa_s->last_gas_addr, addr, ETH_ALEN);
+ wpa_s->last_gas_dialog_token = dialog_token;
+}
+
+
+int gas_send_request(struct wpa_supplicant *wpa_s, const u8 *dst,
+ const struct wpabuf *adv_proto,
+ const struct wpabuf *query)
+{
+ struct wpabuf *buf;
+ int ret = 0;
+ int freq;
+ struct wpa_bss *bss;
+ int res;
+ size_t len;
+ u8 query_resp_len_limit = 0, pame_bi = 0;
+
+ freq = wpa_s->assoc_freq;
+ bss = wpa_bss_get_bssid(wpa_s, dst);
+ if (bss)
+ freq = bss->freq;
+ if (freq <= 0)
+ return -1;
+
+ wpa_printf(MSG_DEBUG, "GAS request to " MACSTR " (freq %d MHz)",
+ MAC2STR(dst), freq);
+ wpa_hexdump_buf(MSG_DEBUG, "Advertisement Protocol ID", adv_proto);
+ wpa_hexdump_buf(MSG_DEBUG, "GAS Query", query);
+
+ len = 3 + wpabuf_len(adv_proto) + 2;
+ if (query)
+ len += wpabuf_len(query);
+ buf = gas_build_initial_req(0, len);
+ if (buf == NULL)
+ return -1;
+
+ /* Advertisement Protocol IE */
+ wpabuf_put_u8(buf, WLAN_EID_ADV_PROTO);
+ wpabuf_put_u8(buf, 1 + wpabuf_len(adv_proto)); /* Length */
+ wpabuf_put_u8(buf, (query_resp_len_limit & 0x7f) |
+ (pame_bi ? 0x80 : 0));
+ wpabuf_put_buf(buf, adv_proto);
+
+ /* GAS Query */
+ if (query) {
+ wpabuf_put_le16(buf, wpabuf_len(query));
+ wpabuf_put_buf(buf, query);
+ } else
+ wpabuf_put_le16(buf, 0);
+
+ res = gas_query_req(wpa_s->gas, dst, freq, buf, gas_resp_cb, wpa_s);
+ if (res < 0) {
+ wpa_printf(MSG_DEBUG, "GAS: Failed to send Query Request");
+ ret = -1;
+ } else
+ wpa_printf(MSG_DEBUG, "GAS: Query started with dialog token "
+ "%u", res);
+
+ wpabuf_free(buf);
+ return ret;
+}
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