#include "includes.h"
#include "common.h"
+#include "l2_packet/l2_packet.h"
+#include "rsn_supp/wpa.h"
+#include "rsn_supp/wpa_ie.h"
+#include "ap/wpa_auth.h"
#include "wpa_supplicant_i.h"
-#include "wpa.h"
-#include "wpa_ie.h"
-#include "../hostapd/wpa.h"
+#include "driver_i.h"
#include "ibss_rsn.h"
}
+static void supp_set_state(void *ctx, enum wpa_states state)
+{
+ struct ibss_rsn_peer *peer = ctx;
+ peer->supp_state = state;
+}
+
+
static int supp_ether_send(void *ctx, const u8 *dest, u16 proto, const u8 *buf,
size_t len)
{
- /* struct ibss_rsn_peer *peer = ctx; */
+ struct ibss_rsn_peer *peer = ctx;
+ struct wpa_supplicant *wpa_s = peer->ibss_rsn->wpa_s;
wpa_printf(MSG_DEBUG, "SUPP: %s(dest=" MACSTR " proto=0x%04x "
"len=%lu)",
__func__, MAC2STR(dest), proto, (unsigned long) len);
- /* TODO: send EAPOL frame */
+ if (wpa_s->l2)
+ return l2_packet_send(wpa_s->l2, dest, proto, buf, len);
- return 0;
+ return wpa_drv_send_eapol(wpa_s, dest, proto, buf, len);
}
static int supp_get_beacon_ie(void *ctx)
{
+ struct ibss_rsn_peer *peer = ctx;
+
wpa_printf(MSG_DEBUG, "SUPP: %s", __func__);
- /* TODO */
- return -1;
+ /* TODO: get correct RSN IE */
+ return wpa_sm_set_ap_rsn_ie(peer->supp,
+ (u8 *) "\x30\x14\x01\x00"
+ "\x00\x0f\xac\x04"
+ "\x01\x00\x00\x0f\xac\x04"
+ "\x01\x00\x00\x0f\xac\x02"
+ "\x00\x00", 22);
}
-static int supp_set_key(void *ctx, wpa_alg alg,
+static int supp_set_key(void *ctx, enum wpa_alg alg,
const u8 *addr, int key_idx, int set_tx,
const u8 *seq, size_t seq_len,
const u8 *key, size_t key_len)
{
+ struct ibss_rsn_peer *peer = ctx;
+
wpa_printf(MSG_DEBUG, "SUPP: %s(alg=%d addr=" MACSTR " key_idx=%d "
"set_tx=%d)",
__func__, alg, MAC2STR(addr), key_idx, set_tx);
wpa_hexdump(MSG_DEBUG, "SUPP: set_key - seq", seq, seq_len);
- wpa_hexdump(MSG_DEBUG, "SUPP: set_key - key", key, key_len);
- return 0;
+ wpa_hexdump_key(MSG_DEBUG, "SUPP: set_key - key", key, key_len);
+
+ if (key_idx == 0) {
+ /*
+ * In IBSS RSN, the pairwise key from the 4-way handshake
+ * initiated by the peer with highest MAC address is used.
+ */
+ if (os_memcmp(peer->ibss_rsn->wpa_s->own_addr, peer->addr,
+ ETH_ALEN) > 0) {
+ wpa_printf(MSG_DEBUG, "SUPP: Do not use this PTK");
+ return 0;
+ }
+ }
+
+ return wpa_drv_set_key(peer->ibss_rsn->wpa_s, alg, addr, key_idx,
+ set_tx, seq, seq_len, key, key_len);
+}
+
+
+static void * supp_get_network_ctx(void *ctx)
+{
+ struct ibss_rsn_peer *peer = ctx;
+ return wpa_supplicant_get_ssid(peer->ibss_rsn->wpa_s);
}
return -1;
ctx->ctx = peer;
+ ctx->msg_ctx = peer->ibss_rsn->wpa_s;
+ ctx->set_state = supp_set_state;
ctx->ether_send = supp_ether_send;
ctx->get_beacon_ie = supp_get_beacon_ie;
ctx->alloc_eapol = supp_alloc_eapol;
ctx->set_key = supp_set_key;
+ ctx->get_network_ctx = supp_get_network_ctx;
ctx->mlme_setprotection = supp_mlme_setprotection;
ctx->cancel_auth_timeout = supp_cancel_auth_timeout;
peer->supp = wpa_sm_init(ctx);
wpa_sm_set_param(peer->supp, WPA_PARAM_KEY_MGMT, WPA_KEY_MGMT_PSK);
wpa_sm_set_pmk(peer->supp, psk, PMK_LEN);
-#if 0 /* TODO? */
peer->supp_ie_len = sizeof(peer->supp_ie);
if (wpa_sm_set_assoc_wpa_ie_default(peer->supp, peer->supp_ie,
&peer->supp_ie_len) < 0) {
" failed");
return -1;
}
-#endif
wpa_sm_notify_assoc(peer->supp, peer->addr);
static int auth_send_eapol(void *ctx, const u8 *addr, const u8 *data,
size_t data_len, int encrypt)
{
- /* struct ibss_rsn *ibss_rsn = ctx; */
+ struct ibss_rsn *ibss_rsn = ctx;
+ struct wpa_supplicant *wpa_s = ibss_rsn->wpa_s;
wpa_printf(MSG_DEBUG, "AUTH: %s(addr=" MACSTR " data_len=%lu "
"encrypt=%d)",
__func__, MAC2STR(addr), (unsigned long) data_len, encrypt);
- /* TODO: send EAPOL frame */
+ if (wpa_s->l2)
+ return l2_packet_send(wpa_s->l2, addr, ETH_P_EAPOL, data,
+ data_len);
- return 0;
+ return wpa_drv_send_eapol(wpa_s, addr, ETH_P_EAPOL, data, data_len);
+}
+
+
+static int auth_set_key(void *ctx, int vlan_id, enum wpa_alg alg,
+ const u8 *addr, int idx, u8 *key, size_t key_len)
+{
+ struct ibss_rsn *ibss_rsn = ctx;
+ u8 seq[6];
+
+ os_memset(seq, 0, sizeof(seq));
+
+ if (addr) {
+ wpa_printf(MSG_DEBUG, "AUTH: %s(alg=%d addr=" MACSTR
+ " key_idx=%d)",
+ __func__, alg, MAC2STR(addr), idx);
+ } else {
+ wpa_printf(MSG_DEBUG, "AUTH: %s(alg=%d key_idx=%d)",
+ __func__, alg, idx);
+ }
+ wpa_hexdump_key(MSG_DEBUG, "AUTH: set_key - key", key, key_len);
+
+ if (idx == 0) {
+ /*
+ * In IBSS RSN, the pairwise key from the 4-way handshake
+ * initiated by the peer with highest MAC address is used.
+ */
+ if (addr == NULL ||
+ os_memcmp(ibss_rsn->wpa_s->own_addr, addr, ETH_ALEN) < 0) {
+ wpa_printf(MSG_DEBUG, "AUTH: Do not use this PTK");
+ return 0;
+ }
+ }
+
+ return wpa_drv_set_key(ibss_rsn->wpa_s, alg, addr, idx,
+ 1, seq, 6, key, key_len);
}
cb.logger = auth_logger;
cb.send_eapol = auth_send_eapol;
cb.get_psk = auth_get_psk;
+ cb.set_key = auth_set_key;
ibss_rsn->auth_group = wpa_init(own_addr, &conf, &cb);
if (ibss_rsn->auth_group == NULL) {
return -1;
}
-#if 0 /* TODO: get peer RSN IE with Probe Request */
- if (wpa_validate_wpa_ie(ibss_rsn->auth_group, peer->auth, PEER_IE,
- PEER_IE_LEN, NULL, 0) != WPA_IE_OK) {
+ /* TODO: get peer RSN IE with Probe Request */
+ if (wpa_validate_wpa_ie(ibss_rsn->auth_group, peer->auth,
+ (u8 *) "\x30\x14\x01\x00"
+ "\x00\x0f\xac\x04"
+ "\x01\x00\x00\x0f\xac\x04"
+ "\x01\x00\x00\x0f\xac\x02"
+ "\x00\x00", 22, NULL, 0) !=
+ WPA_IE_OK) {
wpa_printf(MSG_DEBUG, "AUTH: wpa_validate_wpa_ie() failed");
return -1;
}
-#endif
- wpa_auth_sm_event(peer->auth, WPA_ASSOC);
+ if (wpa_auth_sm_event(peer->auth, WPA_ASSOC))
+ return -1;
- wpa_auth_sta_associated(ibss_rsn->auth_group, peer->auth);
+ if (wpa_auth_sta_associated(ibss_rsn->auth_group, peer->auth))
+ return -1;
return 0;
}
if (peer == NULL)
return -1;
+ peer->ibss_rsn = ibss_rsn;
os_memcpy(peer->addr, addr, ETH_ALEN);
if (ibss_rsn_supp_init(peer, ibss_rsn->wpa_s->own_addr, ibss_rsn->psk)
os_free(ibss_rsn);
}
+
+
+static int ibss_rsn_eapol_dst_supp(const u8 *buf, size_t len)
+{
+ const struct ieee802_1x_hdr *hdr;
+ const struct wpa_eapol_key *key;
+ u16 key_info;
+ size_t plen;
+
+ /* TODO: Support other EAPOL packets than just EAPOL-Key */
+
+ if (len < sizeof(*hdr) + sizeof(*key))
+ return -1;
+
+ hdr = (const struct ieee802_1x_hdr *) buf;
+ key = (const struct wpa_eapol_key *) (hdr + 1);
+ plen = be_to_host16(hdr->length);
+
+ if (hdr->version < EAPOL_VERSION) {
+ /* TODO: backwards compatibility */
+ }
+ if (hdr->type != IEEE802_1X_TYPE_EAPOL_KEY) {
+ wpa_printf(MSG_DEBUG, "RSN: EAPOL frame (type %u) discarded, "
+ "not a Key frame", hdr->type);
+ return -1;
+ }
+ if (plen > len - sizeof(*hdr) || plen < sizeof(*key)) {
+ wpa_printf(MSG_DEBUG, "RSN: EAPOL frame payload size %lu "
+ "invalid (frame size %lu)",
+ (unsigned long) plen, (unsigned long) len);
+ return -1;
+ }
+
+ if (key->type != EAPOL_KEY_TYPE_RSN) {
+ wpa_printf(MSG_DEBUG, "RSN: EAPOL-Key type (%d) unknown, "
+ "discarded", key->type);
+ return -1;
+ }
+
+ key_info = WPA_GET_BE16(key->key_info);
+
+ return !!(key_info & WPA_KEY_INFO_ACK);
+}
+
+
+static int ibss_rsn_process_rx_eapol(struct ibss_rsn *ibss_rsn,
+ struct ibss_rsn_peer *peer,
+ const u8 *buf, size_t len)
+{
+ int supp;
+ u8 *tmp;
+
+ supp = ibss_rsn_eapol_dst_supp(buf, len);
+ if (supp < 0)
+ return -1;
+
+ tmp = os_malloc(len);
+ if (tmp == NULL)
+ return -1;
+ os_memcpy(tmp, buf, len);
+ if (supp) {
+ wpa_printf(MSG_DEBUG, "RSN: IBSS RX EAPOL for Supplicant");
+ wpa_sm_rx_eapol(peer->supp, peer->addr, tmp, len);
+ } else {
+ wpa_printf(MSG_DEBUG, "RSN: IBSS RX EAPOL for Authenticator");
+ wpa_receive(ibss_rsn->auth_group, peer->auth, tmp, len);
+ }
+ os_free(tmp);
+
+ return 1;
+}
+
+
+int ibss_rsn_rx_eapol(struct ibss_rsn *ibss_rsn, const u8 *src_addr,
+ const u8 *buf, size_t len)
+{
+ struct ibss_rsn_peer *peer;
+
+ for (peer = ibss_rsn->peers; peer; peer = peer->next) {
+ if (os_memcmp(src_addr, peer->addr, ETH_ALEN) == 0)
+ return ibss_rsn_process_rx_eapol(ibss_rsn, peer,
+ buf, len);
+ }
+
+ if (ibss_rsn_eapol_dst_supp(buf, len) > 0) {
+ /*
+ * Create new IBSS peer based on an EAPOL message from the peer
+ * Authenticator.
+ */
+ if (ibss_rsn_start(ibss_rsn, src_addr) < 0)
+ return -1;
+ return ibss_rsn_process_rx_eapol(ibss_rsn, ibss_rsn->peers,
+ buf, len);
+ }
+
+ return 0;
+}
+
+
+void ibss_rsn_set_psk(struct ibss_rsn *ibss_rsn, const u8 *psk)
+{
+ os_memcpy(ibss_rsn->psk, psk, PMK_LEN);
+}
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