int ibss_rsn_start(struct ibss_rsn *ibss_rsn, const u8 *addr)
{
struct ibss_rsn_peer *peer;
int res;
if (!ibss_rsn)
return -1;
/* if the peer already exists, exit immediately */
peer = ibss_rsn_get_peer(ibss_rsn, addr);
if (peer)
return 0;
peer = ibss_rsn_peer_init(ibss_rsn, addr);
if (peer == NULL)
return -1;
/* Open Authentication: send first Authentication frame */
res = ibss_rsn_send_auth(ibss_rsn, addr, 1);
if (res) {
/*
* The driver may not support Authentication frame exchange in
* IBSS. Ignore authentication and go through EAPOL exchange.
*/
peer->authentication_status |= IBSS_RSN_AUTH_BY_US;
return ibss_rsn_auth_init(ibss_rsn, peer);
} else {
os_get_reltime(&peer->own_auth_tx);
eloop_register_timeout(1, 0, ibss_rsn_auth_timeout, peer, NULL);
}
return 0;
}
static void ibss_rsn_auth_timeout(void *eloop_ctx, void *timeout_ctx)
{
struct ibss_rsn_peer *peer = eloop_ctx;
/*
* Assume peer does not support Authentication exchange or the frame was
* lost somewhere - start EAPOL Authenticator.
*/
wpa_printf(MSG_DEBUG,
"RSN: Timeout on waiting Authentication frame response from "
MACSTR " - start authenticator", MAC2STR(peer->addr));
peer->authentication_status |= IBSS_RSN_AUTH_BY_US;
ibss_rsn_auth_init(peer->ibss_rsn, peer);
}
int ibss_rsn_start(struct ibss_rsn *ibss_rsn, const u8 *addr)
{
struct ibss_rsn_peer *peer;
if (ibss_rsn == NULL)
return -1;
for (peer = ibss_rsn->peers; peer; peer = peer->next) {
if (os_memcmp(addr, peer->addr, ETH_ALEN) == 0) {
wpa_printf(MSG_DEBUG, "RSN: IBSS Authenticator and "
"Supplicant for peer " MACSTR " already "
"running", MAC2STR(addr));
return 0;
}
}
wpa_printf(MSG_DEBUG, "RSN: Starting IBSS Authenticator and "
"Supplicant for peer " MACSTR, MAC2STR(addr));
peer = os_zalloc(sizeof(*peer));
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)
< 0) {
ibss_rsn_free(peer);
return -1;
}
if (ibss_rsn_auth_init(ibss_rsn, peer) < 0) {
ibss_rsn_free(peer);
return -1;
}
peer->next = ibss_rsn->peers;
ibss_rsn->peers = peer;
return 0;
}
static int ibss_rsn_peer_authenticated(struct ibss_rsn *ibss_rsn,
struct ibss_rsn_peer *peer, int reason)
{
int already_started;
if (ibss_rsn == NULL || peer == NULL)
return -1;
already_started = ibss_rsn_is_auth_started(peer);
peer->authentication_status |= reason;
if (already_started) {
wpa_printf(MSG_DEBUG, "RSN: IBSS Authenticator already "
"started for peer " MACSTR, MAC2STR(peer->addr));
return 0;
}
wpa_printf(MSG_DEBUG, "RSN: Starting IBSS Authenticator "
"for now-authenticated peer " MACSTR, MAC2STR(peer->addr));
return ibss_rsn_auth_init(ibss_rsn, peer);
}
