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Implement management frame TX for wpa_supplicant AP mode

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Jouni Malinen 2009-04-03 16:45:09 +03:00 committed by Jouni Malinen
parent 6179d2fd7d
commit 2c2010acda
2 changed files with 75 additions and 2 deletions
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72
src/drivers/driver_nl80211.c
View file

@ -1557,6 +1557,77 @@ nla_put_failure:
#ifdef CONFIG_AP
static int wpa_driver_nl80211_send_frame(struct wpa_driver_nl80211_data *drv,
const void *data, size_t len,
int encrypt)
{
__u8 rtap_hdr[] = {
0x00, 0x00, /* radiotap version */
0x0e, 0x00, /* radiotap length */
0x02, 0xc0, 0x00, 0x00, /* bmap: flags, tx and rx flags */
IEEE80211_RADIOTAP_F_FRAG, /* F_FRAG (fragment if required) */
0x00, /* padding */
0x00, 0x00, /* RX and TX flags to indicate that */
0x00, 0x00, /* this is the injected frame directly */
};
struct iovec iov[2] = {
{
.iov_base = &rtap_hdr,
.iov_len = sizeof(rtap_hdr),
},
{
.iov_base = (void *) data,
.iov_len = len,
}
};
struct msghdr msg = {
.msg_name = NULL,
.msg_namelen = 0,
.msg_iov = iov,
.msg_iovlen = 2,
.msg_control = NULL,
.msg_controllen = 0,
.msg_flags = 0,
};
if (encrypt)
rtap_hdr[8] |= IEEE80211_RADIOTAP_F_WEP;
return sendmsg(drv->monitor_sock, &msg, 0);
}
static int wpa_driver_nl80211_send_mlme(void *priv, const u8 *data,
size_t data_len)
{
struct wpa_driver_nl80211_data *drv = priv;
struct ieee80211_mgmt *mgmt;
int do_not_encrypt = 0;
u16 fc;
mgmt = (struct ieee80211_mgmt *) data;
fc = le_to_host16(mgmt->frame_control);
if (WLAN_FC_GET_TYPE(fc) == WLAN_FC_TYPE_MGMT &&
WLAN_FC_GET_STYPE(fc) == WLAN_FC_STYPE_AUTH) {
/*
* Only one of the authentication frame types is encrypted.
* In order for static WEP encryption to work properly (i.e.,
* to not encrypt the frame), we need to tell mac80211 about
* the frames that must not be encrypted.
*/
u16 auth_alg = le_to_host16(mgmt->u.auth.auth_alg);
u16 auth_trans = le_to_host16(mgmt->u.auth.auth_transaction);
if (auth_alg == WLAN_AUTH_OPEN ||
(auth_alg == WLAN_AUTH_SHARED_KEY && auth_trans != 3))
do_not_encrypt = 1;
}
return wpa_driver_nl80211_send_frame(drv, data, data_len,
!do_not_encrypt);
}
static int wpa_driver_nl80211_set_beacon(void *priv,
const u8 *head, size_t head_len,
const u8 *tail, size_t tail_len,
@ -2362,5 +2433,6 @@ const struct wpa_driver_ops wpa_driver_nl80211_ops = {
#ifdef CONFIG_AP
.set_beacon = wpa_driver_nl80211_set_beacon,
.set_beacon_int = wpa_driver_nl80211_set_beacon_int,
.send_mlme = wpa_driver_nl80211_send_mlme,
#endif /* CONFIG_AP */
};

5
wpa_supplicant/ap.c
View file

@ -155,8 +155,9 @@ static int ap_driver_sta_remove(void *priv, const u8 *addr)
static int ap_driver_send_mgmt_frame(void *priv, const void *data, size_t len,
int flags)
{
wpa_printf(MSG_DEBUG, "AP TODO: %s", __func__);
return -1;
struct ap_driver_data *drv = priv;
struct wpa_supplicant *wpa_s = drv->hapd->iface->owner;
return wpa_drv_send_mlme(wpa_s, data, len);
}