static int rsn_preauth_iface_add(struct hostapd_data *hapd, const char *ifname)
{
struct rsn_preauth_interface *piface;
HOSTAPD_DEBUG(HOSTAPD_DEBUG_MINIMAL, "RSN pre-auth interface '%s'\n",
ifname);
piface = wpa_zalloc(sizeof(*piface));
if (piface == NULL)
return -1;
piface->hapd = hapd;
piface->ifname = strdup(ifname);
if (piface->ifname == NULL) {
goto fail1;
}
piface->l2 = l2_packet_init(piface->ifname, NULL, ETH_P_PREAUTH,
rsn_preauth_receive, piface, 1);
if (piface->l2 == NULL) {
printf("Failed to open register layer 2 access to "
"ETH_P_PREAUTH\n");
goto fail2;
}
piface->next = hapd->preauth_iface;
hapd->preauth_iface = piface;
return 0;
fail2:
free(piface->ifname);
fail1:
free(piface);
return -1;
}
static int rsn_preauth_iface_add(struct asd_data *wasd, const char *ifname)
{
struct rsn_preauth_interface *piface;
asd_printf(ASD_DEFAULT,MSG_DEBUG, "RSN pre-auth interface '%s'", ifname);
piface = os_zalloc(sizeof(*piface));
if (piface == NULL)
return -1;
piface->wasd = wasd;
piface->ifname = os_strdup(ifname);
if (piface->ifname == NULL) {
goto fail1;
}
piface->l2 = l2_packet_init(piface->ifname, NULL, ETH_P_PREAUTH,
rsn_preauth_receive, piface, 1);
if (piface->l2 == NULL) {
asd_printf(ASD_DEFAULT,MSG_ERROR, "Failed to open register layer 2 access "
"to ETH_P_PREAUTH");
goto fail2;
}
piface->next = wasd->preauth_iface;
wasd->preauth_iface = piface;
return 0;
fail2:
os_free(piface->ifname);
fail1:
os_free(piface);
return -1;
}
int rsn_preauth_init(struct wpa_supplicant *wpa_s, u8 *dst)
{
struct eapol_config eapol_conf;
struct eapol_ctx *ctx;
if (wpa_s->preauth_eapol)
return -1;
wpa_msg(wpa_s, MSG_DEBUG, "RSN: starting pre-authentication with "
MACSTR, MAC2STR(dst));
wpa_s->l2_preauth = l2_packet_init(wpa_s->ifname,
wpa_drv_get_mac_addr(wpa_s),
ETH_P_RSN_PREAUTH,
rsn_preauth_receive, wpa_s);
if (wpa_s->l2_preauth == NULL) {
wpa_printf(MSG_WARNING, "RSN: Failed to initialize L2 packet "
"processing for pre-authentication");
return -2;
}
ctx = malloc(sizeof(*ctx));
if (ctx == NULL) {
wpa_printf(MSG_WARNING, "Failed to allocate EAPOL context.");
return -4;
}
memset(ctx, 0, sizeof(*ctx));
ctx->ctx = wpa_s;
ctx->preauth = 1;
ctx->cb = rsn_preauth_eapol_cb;
ctx->cb_ctx = wpa_s;
ctx->scard_ctx = wpa_s->scard;
ctx->eapol_done_cb = wpa_supplicant_notify_eapol_done;
ctx->eapol_send = wpa_eapol_send_preauth;
wpa_s->preauth_eapol = eapol_sm_init(ctx);
if (wpa_s->preauth_eapol == NULL) {
free(ctx);
wpa_printf(MSG_WARNING, "RSN: Failed to initialize EAPOL "
"state machines for pre-authentication");
return -3;
}
memset(&eapol_conf, 0, sizeof(eapol_conf));
eapol_conf.accept_802_1x_keys = 0;
eapol_conf.required_keys = 0;
eapol_conf.fast_reauth = wpa_s->conf->fast_reauth;
if (wpa_s->current_ssid)
eapol_conf.workaround = wpa_s->current_ssid->eap_workaround;
eapol_sm_notify_config(wpa_s->preauth_eapol, wpa_s->current_ssid,
&eapol_conf);
memcpy(wpa_s->preauth_bssid, dst, ETH_ALEN);
eapol_sm_notify_portValid(wpa_s->preauth_eapol, TRUE);
/* 802.1X::portControl = Auto */
eapol_sm_notify_portEnabled(wpa_s->preauth_eapol, TRUE);
eloop_register_timeout(60, 0, rsn_preauth_timeout, wpa_s, NULL);
return 0;
}
struct wpa_supplicant *
wapi_supplicant_init(struct wpa_supplicant *wpa_s)
{
g_wpa_s = wpa_s;
for (;;) {
wpa_s->l2_wapi = l2_packet_init(
wpa_s->ifname,
wpa_drv_get_mac_addr(wpa_s),
ETH_P_WAI,
wapi_supplicant_rx_wai,
wpa_s,
0);
wpa_printf(MSG_INFO, "%s: Init WAPI packet %s\n", __func__,
wpa_s->ifname);
if (wpa_s->l2_wapi) {
break;
}
sleep(5);
}
if (l2_packet_get_own_addr(wpa_s->l2_wapi, wpa_s->own_addr)) {
fprintf(stderr, "Failed to get own L2 address\n");
return NULL;
}
wpa_printf(MSG_DEBUG, "Own MAC address: " MACSTR,
MAC2STR(wpa_s->own_addr));
WIFI_lib_init();
return wpa_s;
}
struct l2_packet_data * l2_packet_init_bridge(
const char *br_ifname, const char *ifname, const u8 *own_addr,
unsigned short protocol,
void (*rx_callback)(void *ctx, const u8 *src_addr,
const u8 *buf, size_t len),
void *rx_callback_ctx, int l2_hdr)
{
return l2_packet_init(br_ifname, own_addr, protocol, rx_callback,
rx_callback_ctx, l2_hdr);
}
static void *
bsd_init(struct hostapd_data *hapd, struct wpa_init_params *params)
{
struct bsd_driver_data *drv;
drv = os_zalloc(sizeof(struct bsd_driver_data));
if (drv == NULL) {
printf("Could not allocate memory for bsd driver data\n");
goto bad;
}
drv->hapd = hapd;
drv->sock = socket(PF_INET, SOCK_DGRAM, 0);
if (drv->sock < 0) {
perror("socket[PF_INET,SOCK_DGRAM]");
goto bad;
}
os_strlcpy(drv->ifname, params->ifname, sizeof(drv->ifname));
drv->sock_xmit = l2_packet_init(drv->ifname, NULL, ETH_P_EAPOL,
handle_read, drv, 0);
if (drv->sock_xmit == NULL)
goto bad;
if (l2_packet_get_own_addr(drv->sock_xmit, params->own_addr))
goto bad;
/* mark down during setup */
if (bsd_ctrl_iface(drv, 0) < 0)
goto bad;
drv->route = socket(PF_ROUTE, SOCK_RAW, 0);
if (drv->route < 0) {
perror("socket(PF_ROUTE,SOCK_RAW)");
goto bad;
}
eloop_register_read_sock(drv->route, bsd_wireless_event_receive, drv,
NULL);
if (bsd_set_mediaopt(drv, IFM_OMASK, IFM_IEEE80211_HOSTAP) < 0) {
wpa_printf(MSG_ERROR, "%s: failed to set operation mode",
__func__);
goto bad;
}
return drv;
bad:
if (drv->sock_xmit != NULL)
l2_packet_deinit(drv->sock_xmit);
if (drv->sock >= 0)
close(drv->sock);
if (drv != NULL)
os_free(drv);
return NULL;
}
static void wpa_priv_cmd_l2_register(struct wpa_priv_interface *iface,
struct sockaddr_un *from,
void *buf, size_t len)
{
int *reg_cmd = buf;
u8 own_addr[ETH_ALEN];
int res;
u16 proto;
if (len != 2 * sizeof(int)) {
wpa_printf(MSG_DEBUG, "Invalid l2_register length %lu",
(unsigned long) len);
return;
}
proto = reg_cmd[0];
if (proto != ETH_P_EAPOL && proto != ETH_P_RSN_PREAUTH &&
proto != ETH_P_80211_ENCAP) {
wpa_printf(MSG_DEBUG, "Refused l2_packet connection for "
"ethertype 0x%x", proto);
return;
}
if (iface->l2) {
wpa_printf(MSG_DEBUG, "Cleaning up forgotten l2_packet "
"instance");
l2_packet_deinit(iface->l2);
iface->l2 = NULL;
}
os_memcpy(&iface->l2_addr, from, sizeof(iface->l2_addr));
iface->l2 = l2_packet_init(iface->ifname, NULL, proto,
wpa_priv_l2_rx, iface, reg_cmd[1]);
if (iface->l2 == NULL) {
wpa_printf(MSG_DEBUG, "Failed to initialize l2_packet "
"instance for protocol %d", proto);
return;
}
if (l2_packet_get_own_addr(iface->l2, own_addr) < 0) {
wpa_printf(MSG_DEBUG, "Failed to get own address from "
"l2_packet");
l2_packet_deinit(iface->l2);
iface->l2 = NULL;
return;
}
res = sendto(iface->fd, own_addr, ETH_ALEN, 0,
(struct sockaddr *) from, sizeof(*from));
wpa_printf(MSG_DEBUG, "L2 registration: res=%d", res);
}
static void wpa_init_conf(struct wpa_supplicant *wpa_s, const char *ifname)
{
struct l2_packet_data *l2;
struct wpa_sm_ctx *ctx;
os_memset(&dummy_driver, 0, sizeof(dummy_driver));
wpa_s->driver = &dummy_driver;
ctx = os_zalloc(sizeof(*ctx));
assert(ctx != NULL);
ctx->ctx = wpa_s;
ctx->set_state = _wpa_supplicant_set_state;
ctx->get_state = _wpa_supplicant_get_state;
ctx->req_scan = _wpa_supplicant_req_scan;
ctx->deauthenticate = _wpa_supplicant_deauthenticate;
ctx->disassociate = _wpa_supplicant_disassociate;
ctx->set_key = wpa_supplicant_set_key;
ctx->scan = wpa_supplicant_scan;
ctx->get_ssid = _wpa_supplicant_get_ssid;
ctx->get_bssid = wpa_supplicant_get_bssid;
ctx->ether_send = wpa_ether_send;
ctx->get_beacon_ie = wpa_supplicant_get_beacon_ie;
ctx->alloc_eapol = _wpa_alloc_eapol;
ctx->cancel_auth_timeout = _wpa_supplicant_cancel_auth_timeout;
ctx->add_pmkid = wpa_supplicant_add_pmkid;
ctx->remove_pmkid = wpa_supplicant_remove_pmkid;
ctx->set_config_blob = wpa_supplicant_set_config_blob;
ctx->get_config_blob = wpa_supplicant_get_config_blob;
ctx->mlme_setprotection = wpa_supplicant_mlme_setprotection;
wpa_s->wpa = wpa_sm_init(ctx);
assert(wpa_s->wpa != NULL);
wpa_sm_set_param(wpa_s->wpa, WPA_PARAM_PROTO, WPA_PROTO_RSN);
os_strncpy(wpa_s->ifname, ifname, sizeof(wpa_s->ifname));
wpa_sm_set_ifname(wpa_s->wpa, wpa_s->ifname, NULL);
l2 = l2_packet_init(wpa_s->ifname, NULL, ETH_P_RSN_PREAUTH, NULL,
NULL, 0);
assert(l2 != NULL);
if (l2_packet_get_own_addr(l2, wpa_s->own_addr)) {
wpa_printf(MSG_WARNING, "Failed to get own L2 address\n");
exit(-1);
}
l2_packet_deinit(l2);
wpa_sm_set_own_addr(wpa_s->wpa, wpa_s->own_addr);
}
static int
bsd_init(struct hostapd_data *hapd)
{
struct bsd_driver_data *drv;
drv = malloc(sizeof(struct bsd_driver_data));
if (drv == NULL) {
printf("Could not allocate memory for bsd driver data\n");
goto bad;
}
memset(drv, 0, sizeof(*drv));
drv->ops = bsd_driver_ops;
drv->hapd = hapd;
drv->ioctl_sock = socket(PF_INET, SOCK_DGRAM, 0);
if (drv->ioctl_sock < 0) {
perror("socket[PF_INET,SOCK_DGRAM]");
goto bad;
}
memcpy(drv->iface, hapd->conf->iface, sizeof(drv->iface));
drv->sock_xmit = l2_packet_init(drv->iface, NULL, ETH_P_EAPOL,
handle_read, drv);
if (drv->sock_xmit == NULL)
goto bad;
if (l2_packet_get_own_addr(drv->sock_xmit, hapd->own_addr))
goto bad;
bsd_set_iface_flags(drv, 0); /* mark down during setup */
hapd->driver = &drv->ops;
return 0;
bad:
if (drv->sock_xmit != NULL)
l2_packet_deinit(drv->sock_xmit);
if (drv->ioctl_sock >= 0)
close(drv->ioctl_sock);
if (drv != NULL)
free(drv);
return -1;
}
static int atheros_receive_probe_req(struct atheros_driver_data *drv)
{
int ret = 0;
#ifdef CONFIG_WPS
struct ieee80211req_set_filter filt;
wpa_printf(MSG_DEBUG, "%s Enter", __func__);
filt.app_filterype = IEEE80211_FILTER_TYPE_PROBE_REQ;
ret = set80211priv(drv, IEEE80211_IOCTL_FILTERFRAME, &filt,
sizeof(struct ieee80211req_set_filter));
if (ret)
return ret;
drv->sock_raw = l2_packet_init(drv->iface, NULL, ETH_P_80211_RAW,
atheros_raw_receive, drv, 1);
if (drv->sock_raw == NULL)
return -1;
#endif /* CONFIG_WPS */
return ret;
}
static int
wpa_supplicant_driver_init(const char *link, struct wpa_supplicant *wpa_s)
{
wpa_s->l2 = l2_packet_init(link, ETHERTYPE_EAPOL,
wpa_supplicant_rx_eapol, wpa_s);
if (wpa_s->l2 == NULL)
return (-1);
if (l2_packet_get_own_addr(wpa_s->l2, wpa_s->own_addr)) {
(void) fprintf(stderr, "Failed to get own L2 address\n");
return (-1);
}
if (wpa_s->driver->set_wpa(wpa_s->linkid, 1) < 0) {
wpa_printf(MSG_ERROR, "Failed to enable WPA in the driver.");
return (-1);
}
wpa_clear_keys(wpa_s, NULL);
wpa_supplicant_req_scan(wpa_s, 0, 100000);
return (0);
}
static int wpa_driver_roboswitch_set_param(void *priv, const char *param)
{
struct wpa_driver_roboswitch_data *drv = priv;
char *sep;
if (param == NULL || os_strstr(param, "multicast_only=1") == NULL) {
sep = drv->ifname + os_strlen(drv->ifname);
*sep = '.';
drv->l2 = l2_packet_init(drv->ifname, NULL, ETH_P_ALL,
wpa_driver_roboswitch_receive, drv,
1);
if (drv->l2 == NULL) {
wpa_printf(MSG_INFO, "%s: Unable to listen on %s",
__func__, drv->ifname);
return -1;
}
*sep = '\0';
l2_packet_get_own_addr(drv->l2, drv->own_addr);
} else {
wpa_printf(MSG_DEBUG, "%s: Ignoring unicast frames", __func__);
drv->l2 = NULL;
}
return 0;
}
/**
* rsn_preauth_init - Start new RSN pre-authentication
* @sm: Pointer to WPA state machine data from wpa_sm_init()
* @dst: Authenticator address (BSSID) with which to preauthenticate
* @eap_conf: Current EAP configuration
* Returns: 0 on success, -1 on another pre-authentication is in progress,
* -2 on layer 2 packet initialization failure, -3 on EAPOL state machine
* initialization failure, -4 on memory allocation failure
*
* This function request an RSN pre-authentication with a given destination
* address. This is usually called for PMKSA candidates found from scan results
* or from driver reports. In addition, ctrl_iface PREAUTH command can trigger
* pre-authentication.
*/
int rsn_preauth_init(struct wpa_sm *sm, const u8 *dst,
struct eap_peer_config *eap_conf)
{
struct eapol_config eapol_conf;
struct eapol_ctx *ctx;
if (sm->preauth_eapol)
return -1;
wpa_msg(sm->ctx->ctx, MSG_DEBUG, "RSN: starting pre-authentication "
"with " MACSTR, MAC2STR(dst));
sm->l2_preauth = l2_packet_init(sm->ifname, sm->own_addr,
ETH_P_RSN_PREAUTH,
rsn_preauth_receive, sm, 0);
if (sm->l2_preauth == NULL) {
wpa_printf(MSG_WARNING, "RSN: Failed to initialize L2 packet "
"processing for pre-authentication");
return -2;
}
if (sm->bridge_ifname) {
sm->l2_preauth_br = l2_packet_init(sm->bridge_ifname,
sm->own_addr,
ETH_P_RSN_PREAUTH,
rsn_preauth_receive, sm, 0);
if (sm->l2_preauth_br == NULL) {
wpa_printf(MSG_WARNING, "RSN: Failed to initialize L2 "
"packet processing (bridge) for "
"pre-authentication");
return -2;
}
}
ctx = os_zalloc(sizeof(*ctx));
if (ctx == NULL) {
wpa_printf(MSG_WARNING, "Failed to allocate EAPOL context.");
return -4;
}
ctx->ctx = sm->ctx->ctx;
ctx->msg_ctx = sm->ctx->ctx;
ctx->preauth = 1;
ctx->cb = rsn_preauth_eapol_cb;
ctx->cb_ctx = sm;
ctx->scard_ctx = sm->scard_ctx;
ctx->eapol_send = rsn_preauth_eapol_send;
ctx->eapol_send_ctx = sm;
ctx->set_config_blob = sm->ctx->set_config_blob;
ctx->get_config_blob = sm->ctx->get_config_blob;
sm->preauth_eapol = eapol_sm_init(ctx);
if (sm->preauth_eapol == NULL) {
os_free(ctx);
wpa_printf(MSG_WARNING, "RSN: Failed to initialize EAPOL "
"state machines for pre-authentication");
return -3;
}
os_memset(&eapol_conf, 0, sizeof(eapol_conf));
eapol_conf.accept_802_1x_keys = 0;
eapol_conf.required_keys = 0;
eapol_conf.fast_reauth = sm->fast_reauth;
eapol_conf.workaround = sm->eap_workaround;
eapol_sm_notify_config(sm->preauth_eapol, eap_conf, &eapol_conf);
/*
* Use a shorter startPeriod with preauthentication since the first
* preauth EAPOL-Start frame may end up being dropped due to race
* condition in the AP between the data receive and key configuration
* after the 4-Way Handshake.
*/
eapol_sm_configure(sm->preauth_eapol, -1, -1, 5, 6);
os_memcpy(sm->preauth_bssid, dst, ETH_ALEN);
eapol_sm_notify_portValid(sm->preauth_eapol, TRUE);
/* 802.1X::portControl = Auto */
eapol_sm_notify_portEnabled(sm->preauth_eapol, TRUE);
eloop_register_timeout(sm->dot11RSNAConfigSATimeout, 0,
rsn_preauth_timeout, sm, NULL);
return 0;
}
static void *
atheros_init(struct hostapd_data *hapd, struct wpa_init_params *params)
{
struct atheros_driver_data *drv;
struct ifreq ifr;
struct iwreq iwr;
char brname[IFNAMSIZ];
drv = os_zalloc(sizeof(struct atheros_driver_data));
if (drv == NULL) {
printf("Could not allocate memory for atheros driver data\n");
return NULL;
}
drv->hapd = hapd;
drv->ioctl_sock = socket(PF_INET, SOCK_DGRAM, 0);
if (drv->ioctl_sock < 0) {
perror("socket[PF_INET,SOCK_DGRAM]");
goto bad;
}
memcpy(drv->iface, params->ifname, sizeof(drv->iface));
memset(&ifr, 0, sizeof(ifr));
os_strlcpy(ifr.ifr_name, drv->iface, sizeof(ifr.ifr_name));
if (ioctl(drv->ioctl_sock, SIOCGIFINDEX, &ifr) != 0) {
perror("ioctl(SIOCGIFINDEX)");
goto bad;
}
drv->ifindex = ifr.ifr_ifindex;
drv->sock_xmit = l2_packet_init(drv->iface, NULL, ETH_P_EAPOL,
handle_read, drv, 1);
if (drv->sock_xmit == NULL)
goto bad;
if (l2_packet_get_own_addr(drv->sock_xmit, params->own_addr))
goto bad;
if (params->bridge[0]) {
wpa_printf(MSG_DEBUG, "Configure bridge %s for EAPOL traffic.",
params->bridge[0]);
drv->sock_recv = l2_packet_init(params->bridge[0], NULL,
ETH_P_EAPOL, handle_read, drv,
1);
if (drv->sock_recv == NULL)
goto bad;
} else if (linux_br_get(brname, drv->iface) == 0) {
wpa_printf(MSG_DEBUG, "Interface in bridge %s; configure for "
"EAPOL receive", brname);
drv->sock_recv = l2_packet_init(brname, NULL, ETH_P_EAPOL,
handle_read, drv, 1);
if (drv->sock_recv == NULL)
goto bad;
} else
drv->sock_recv = drv->sock_xmit;
memset(&iwr, 0, sizeof(iwr));
os_strlcpy(iwr.ifr_name, drv->iface, IFNAMSIZ);
iwr.u.mode = IW_MODE_MASTER;
if (ioctl(drv->ioctl_sock, SIOCSIWMODE, &iwr) < 0) {
perror("ioctl[SIOCSIWMODE]");
printf("Could not set interface to master mode!\n");
goto bad;
}
/* mark down during setup */
linux_set_iface_flags(drv->ioctl_sock, drv->iface, 0);
atheros_set_privacy(drv, 0); /* default to no privacy */
atheros_receive_probe_req(drv);
if (atheros_wireless_event_init(drv))
goto bad;
return drv;
bad:
if (drv->sock_recv != NULL && drv->sock_recv != drv->sock_xmit)
l2_packet_deinit(drv->sock_recv);
if (drv->sock_xmit != NULL)
l2_packet_deinit(drv->sock_xmit);
if (drv->ioctl_sock >= 0)
close(drv->ioctl_sock);
if (drv != NULL)
free(drv);
return NULL;
}
static void *
madwifi_init(struct hostapd_data *hapd)
{
struct madwifi_driver_data *drv;
struct ifreq ifr;
struct iwreq iwr;
drv = os_zalloc(sizeof(struct madwifi_driver_data));
if (drv == NULL) {
printf("Could not allocate memory for madwifi driver data\n");
return NULL;
}
drv->hapd = hapd;
drv->ioctl_sock = socket(PF_INET, SOCK_DGRAM, 0);
if (drv->ioctl_sock < 0) {
perror("socket[PF_INET,SOCK_DGRAM]");
goto bad;
}
memcpy(drv->iface, hapd->conf->iface, sizeof(drv->iface));
memset(&ifr, 0, sizeof(ifr));
os_strlcpy(ifr.ifr_name, drv->iface, sizeof(ifr.ifr_name));
if (ioctl(drv->ioctl_sock, SIOCGIFINDEX, &ifr) != 0) {
perror("ioctl(SIOCGIFINDEX)");
goto bad;
}
drv->ifindex = ifr.ifr_ifindex;
drv->sock_xmit = l2_packet_init(drv->iface, NULL, ETH_P_EAPOL,
handle_read, drv, 1);
if (drv->sock_xmit == NULL)
goto bad;
if (l2_packet_get_own_addr(drv->sock_xmit, hapd->own_addr))
goto bad;
if (hapd->conf->bridge[0] != '\0') {
wpa_printf(MSG_DEBUG, "Configure bridge %s for EAPOL traffic.",
hapd->conf->bridge);
drv->sock_recv = l2_packet_init(hapd->conf->bridge, NULL,
ETH_P_EAPOL, handle_read, drv,
1);
if (drv->sock_recv == NULL)
goto bad;
} else
drv->sock_recv = drv->sock_xmit;
memset(&iwr, 0, sizeof(iwr));
os_strlcpy(iwr.ifr_name, drv->iface, IFNAMSIZ);
iwr.u.mode = IW_MODE_MASTER;
if (ioctl(drv->ioctl_sock, SIOCSIWMODE, &iwr) < 0) {
perror("ioctl[SIOCSIWMODE]");
printf("Could not set interface to master mode!\n");
goto bad;
}
madwifi_set_iface_flags(drv, 0); /* mark down during setup */
madwifi_set_privacy(drv->iface, drv, 0); /* default to no privacy */
madwifi_receive_probe_req(drv);
return drv;
bad:
if (drv->sock_xmit != NULL)
l2_packet_deinit(drv->sock_xmit);
if (drv->ioctl_sock >= 0)
close(drv->ioctl_sock);
if (drv != NULL)
free(drv);
return NULL;
}
static void *
bsd_init(struct hostapd_data *hapd, struct wpa_init_params *params)
{
struct bsd_driver_data *drv;
drv = os_zalloc(sizeof(struct bsd_driver_data));
if (drv == NULL) {
printf("Could not allocate memory for bsd driver data\n");
goto bad;
}
drv->hapd = hapd;
drv->sock = socket(PF_INET, SOCK_DGRAM, 0);
if (drv->sock < 0) {
perror("socket[PF_INET,SOCK_DGRAM]");
goto bad;
}
os_strlcpy(drv->ifname, params->ifname, sizeof(drv->ifname));
/*
* NB: We require the interface name be mappable to an index.
* This implies we do not support having wpa_supplicant
* wait for an interface to appear. This seems ok; that
* doesn't belong here; it's really the job of devd.
* XXXSCW: devd is FreeBSD-specific.
*/
drv->ifindex = if_nametoindex(drv->ifname);
if (drv->ifindex == 0) {
printf("%s: interface %s does not exist", __func__,
drv->ifname);
goto bad;
}
drv->sock_xmit = l2_packet_init(drv->ifname, NULL, ETH_P_EAPOL,
handle_read, drv, 0);
if (drv->sock_xmit == NULL)
goto bad;
if (l2_packet_get_own_addr(drv->sock_xmit, params->own_addr))
goto bad;
/* mark down during setup */
if (bsd_ctrl_iface(drv, 0) < 0)
goto bad;
drv->route = socket(PF_ROUTE, SOCK_RAW, 0);
if (drv->route < 0) {
perror("socket(PF_ROUTE,SOCK_RAW)");
goto bad;
}
eloop_register_read_sock(drv->route, bsd_wireless_event_receive, drv,
NULL);
return drv;
bad:
if (drv == NULL)
return NULL;
if (drv->sock_xmit != NULL)
l2_packet_deinit(drv->sock_xmit);
if (drv->sock >= 0)
close(drv->sock);
os_free(drv);
return NULL;
}
static int
wpa_driver_bsd_associate(void *priv, struct wpa_driver_associate_params *params)
{
struct bsd_driver_data *drv = priv;
struct ieee80211req_mlme mlme;
u32 mode;
int privacy;
int ret = 0;
wpa_printf(MSG_DEBUG,
"%s: ssid '%.*s' wpa ie len %u pairwise %u group %u key mgmt %u"
, __func__
, (unsigned int) params->ssid_len, params->ssid
, (unsigned int) params->wpa_ie_len
, params->pairwise_suite
, params->group_suite
, params->key_mgmt_suite
);
switch (params->mode) {
case IEEE80211_MODE_INFRA:
mode = 0 /* STA */;
break;
case IEEE80211_MODE_IBSS:
mode = IFM_IEEE80211_IBSS;
break;
case IEEE80211_MODE_AP:
mode = IFM_IEEE80211_HOSTAP;
break;
default:
wpa_printf(MSG_ERROR, "%s: unknown operation mode", __func__);
return -1;
}
if (bsd_set_mediaopt(drv, IFM_OMASK, mode) < 0) {
wpa_printf(MSG_ERROR, "%s: failed to set operation mode",
__func__);
return -1;
}
if (params->mode == IEEE80211_MODE_AP) {
drv->sock_xmit = l2_packet_init(drv->ifname, NULL, ETH_P_EAPOL,
handle_read, drv, 0);
if (drv->sock_xmit == NULL)
return -1;
drv->is_ap = 1;
return 0;
}
if (wpa_driver_bsd_set_drop_unencrypted(drv, params->drop_unencrypted)
< 0)
ret = -1;
if (wpa_driver_bsd_set_auth_alg(drv, params->auth_alg) < 0)
ret = -1;
/* XXX error handling is wrong but unclear what to do... */
if (wpa_driver_bsd_set_wpa_ie(drv, params->wpa_ie, params->wpa_ie_len) < 0)
return -1;
privacy = !(params->pairwise_suite == CIPHER_NONE &&
params->group_suite == CIPHER_NONE &&
params->key_mgmt_suite == KEY_MGMT_NONE &&
params->wpa_ie_len == 0);
wpa_printf(MSG_DEBUG, "%s: set PRIVACY %u", __func__, privacy);
if (set80211param(drv, IEEE80211_IOC_PRIVACY, privacy) < 0)
return -1;
if (params->wpa_ie_len &&
set80211param(drv, IEEE80211_IOC_WPA,
params->wpa_ie[0] == WLAN_EID_RSN ? 2 : 1) < 0)
return -1;
os_memset(&mlme, 0, sizeof(mlme));
mlme.im_op = IEEE80211_MLME_ASSOC;
if (params->ssid != NULL)
os_memcpy(mlme.im_ssid, params->ssid, params->ssid_len);
mlme.im_ssid_len = params->ssid_len;
if (params->bssid != NULL)
os_memcpy(mlme.im_macaddr, params->bssid, IEEE80211_ADDR_LEN);
if (set80211var(drv, IEEE80211_IOC_MLME, &mlme, sizeof(mlme)) < 0)
return -1;
return ret;
}
int hostapd_setup_wpa(struct hostapd_data *hapd)
{
struct wpa_auth_config _conf;
struct wpa_auth_callbacks cb;
const u8 *wpa_ie;
size_t wpa_ie_len;
hostapd_wpa_auth_conf(hapd->conf, &_conf);
if (hapd->iface->drv_flags & WPA_DRIVER_FLAGS_EAPOL_TX_STATUS)
_conf.tx_status = 1;
os_memset(&cb, 0, sizeof(cb));
cb.ctx = hapd;
cb.logger = hostapd_wpa_auth_logger;
cb.disconnect = hostapd_wpa_auth_disconnect;
cb.mic_failure_report = hostapd_wpa_auth_mic_failure_report;
cb.set_eapol = hostapd_wpa_auth_set_eapol;
cb.get_eapol = hostapd_wpa_auth_get_eapol;
cb.get_psk = hostapd_wpa_auth_get_psk;
cb.get_msk = hostapd_wpa_auth_get_msk;
cb.set_key = hostapd_wpa_auth_set_key;
cb.get_seqnum = hostapd_wpa_auth_get_seqnum;
cb.send_eapol = hostapd_wpa_auth_send_eapol;
cb.for_each_sta = hostapd_wpa_auth_for_each_sta;
cb.for_each_auth = hostapd_wpa_auth_for_each_auth;
cb.send_ether = hostapd_wpa_auth_send_ether;
#ifdef CONFIG_IEEE80211R
cb.send_ft_action = hostapd_wpa_auth_send_ft_action;
cb.add_sta = hostapd_wpa_auth_add_sta;
#endif /* CONFIG_IEEE80211R */
hapd->wpa_auth = wpa_init(hapd->own_addr, &_conf, &cb);
if (hapd->wpa_auth == NULL) {
wpa_printf(MSG_ERROR, "WPA initialization failed.");
return -1;
}
if (hostapd_set_privacy(hapd, 1)) {
wpa_printf(MSG_ERROR, "Could not set PrivacyInvoked "
"for interface %s", hapd->conf->iface);
return -1;
}
wpa_ie = wpa_auth_get_wpa_ie(hapd->wpa_auth, &wpa_ie_len);
if (hostapd_set_generic_elem(hapd, wpa_ie, wpa_ie_len)) {
wpa_printf(MSG_ERROR, "Failed to configure WPA IE for "
"the kernel driver.");
return -1;
}
if (rsn_preauth_iface_init(hapd)) {
wpa_printf(MSG_ERROR, "Initialization of RSN "
"pre-authentication failed.");
return -1;
}
#ifdef CONFIG_IEEE80211R
if (!hostapd_drv_none(hapd)) {
hapd->l2 = l2_packet_init(hapd->conf->bridge[0] ?
hapd->conf->bridge :
hapd->conf->iface, NULL, ETH_P_RRB,
hostapd_rrb_receive, hapd, 1);
if (hapd->l2 == NULL &&
(hapd->driver == NULL ||
hapd->driver->send_ether == NULL)) {
wpa_printf(MSG_ERROR, "Failed to open l2_packet "
"interface");
return -1;
}
}
#endif /* CONFIG_IEEE80211R */
return 0;
}
static void *rtl871x_driver_init_ops(struct hostapd_data *hapd, struct wpa_init_params *params)
{
struct rtl871x_driver_data *drv;
struct ifreq ifr;
char ifrn_name[IFNAMSIZ + 1]; // for mgnt_l2_sock/mgnt_sock
char brname[IFNAMSIZ];
drv = os_zalloc(sizeof(struct rtl871x_driver_data));
if (drv == NULL) {
printf("Could not allocate memory for rtl871x driver data\n");
return NULL;
}
drv->hapd = hapd;
drv->ioctl_sock = socket(PF_INET, SOCK_DGRAM, 0);
if (drv->ioctl_sock < 0) {
perror("socket[PF_INET,SOCK_DGRAM]");
goto bad;
}
os_memcpy(drv->iface, params->ifname, sizeof(drv->iface));
linux_set_iface_flags(drv->ioctl_sock, drv->iface, 1); // set interface up
os_memset(&ifr, 0, sizeof(ifr));
os_strlcpy(ifr.ifr_name, drv->iface, sizeof(ifr.ifr_name));
if (ioctl(drv->ioctl_sock, SIOCGIFINDEX, &ifr) != 0) {
perror("ioctl(SIOCGIFINDEX)");
goto bad;
}
drv->ifindex = ifr.ifr_ifindex;
printf("drv->ifindex=%d\n", drv->ifindex);
drv->l2_sock = l2_packet_init(drv->iface, NULL, ETH_P_EAPOL,
rtl871x_handle_read, drv, 1);
if (drv->l2_sock == NULL)
goto bad;
if (l2_packet_get_own_addr(drv->l2_sock, params->own_addr))
goto bad;
if (params->bridge[0]) {
wpa_printf(MSG_DEBUG, "Configure bridge %s for EAPOL traffic.",
params->bridge[0]);
drv->l2_sock_recv = l2_packet_init(params->bridge[0], NULL,
ETH_P_EAPOL, rtl871x_handle_read, drv,
1);
if (drv->l2_sock_recv == NULL) {
drv->l2_sock_recv = drv->l2_sock;
printf("no br0 interface , let l2_sock_recv==l2_sock_xmit=0x%p\n", drv->l2_sock);
}
} else if (linux_br_get(brname, drv->iface) == 0) {
wpa_printf(MSG_DEBUG, "Interface in bridge %s; configure for "
"EAPOL receive", brname);
drv->l2_sock_recv = l2_packet_init(brname, NULL, ETH_P_EAPOL,
rtl871x_handle_read, drv, 1);
if (drv->l2_sock_recv == NULL)
goto bad;
} else {
drv->l2_sock_recv = drv->l2_sock;
printf("l2_sock_recv==l2_sock_xmit=0x%p\n", drv->l2_sock);
}
os_memset(ifrn_name, 0, sizeof(ifrn_name));
snprintf(ifrn_name, sizeof(ifrn_name), "mgnt.%s", "wlan0");
#ifdef CONFIG_MGNT_L2SOCK
drv->mgnt_l2_sock = NULL;
drv->mgnt_l2_sock = l2_packet_init(ifrn_name, NULL, ETH_P_80211_RAW,
rtl871x_recvive_mgmt_frame, drv, 1);
if (drv->mgnt_l2_sock == NULL)
goto bad;
#else
#ifdef CONFIG_MLME_OFFLOAD
drv->mgnt_sock = -1;
#else
drv->mgnt_sock = rtl871x_mgnt_sock_init(drv, ifrn_name);
if (drv->mgnt_sock < 0) {
goto bad;
}
#endif
#endif
if (rtl871x_set_mode(drv, IW_MODE_MASTER)<0) {
printf("Could not set interface to master mode!\n");
goto bad;
}
#ifndef CONFIG_MLME_OFFLOAD
rtl871x_set_iface_flags(drv, 1); // set mgnt interface up
#endif
if (rtl871x_wireless_event_init(drv))
goto bad;
os_memcpy(drv->hw_mac, params->own_addr, ETH_ALEN);
return drv;
bad:
if (drv->l2_sock_recv != NULL && drv->l2_sock_recv != drv->l2_sock)
l2_packet_deinit(drv->l2_sock_recv);
if (drv->l2_sock != NULL)
l2_packet_deinit(drv->l2_sock);
if (drv->ioctl_sock >= 0)
close(drv->ioctl_sock);
#ifdef CONFIG_MGNT_L2SOCK
if ( drv->mgnt_l2_sock != NULL)
l2_packet_deinit(drv->mgnt_l2_sock);
#else
if (drv->mgnt_sock >= 0)
close(drv->mgnt_sock);
#endif
if (drv != NULL)
free(drv);
return NULL;
}