mirror of
https://github.com/vanhoefm/fragattacks.git
synced 2024-11-28 10:18:21 -05:00
Do not use virtual driver_ops for wpa_supplicant AP mode
Initialize struct hostapd_data driver context with the same driver information that was initialized earlier during wpa_supplicant start. This allows the AP mode operations to be completed directly with the same calls in AP code without having to maintain a separate translation layer between the AP and station mode driver context.
This commit is contained in:
Jouni Malinen
parent
8c5fe31fe8
commit
a911a6e61f
@ -77,9 +77,6 @@ extern struct wpa_driver_ops wpa_driver_atheros_ops; /* driver_atheros.c */
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#ifdef CONFIG_DRIVER_NONE
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extern struct wpa_driver_ops wpa_driver_none_ops; /* driver_none.c */
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#endif /* CONFIG_DRIVER_NONE */
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#ifdef CONFIG_AP
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extern struct wpa_driver_ops ap_driver_ops; /* wpa_supplicant/ap.c */
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#endif /* CONFIG_AP */
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struct wpa_driver_ops *wpa_drivers[] =
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@ -144,8 +141,5 @@ struct wpa_driver_ops *wpa_drivers[] =
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#ifdef CONFIG_DRIVER_NONE
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&wpa_driver_none_ops,
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#endif /* CONFIG_DRIVER_NONE */
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#ifdef CONFIG_AP
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&ap_driver_ops,
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#endif /* CONFIG_AP */
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NULL
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};
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@ -60,257 +60,14 @@ void hostapd_ctrl_iface_deinit(struct hostapd_data *hapd)
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}
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struct ap_driver_data {
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struct hostapd_data *hapd;
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};
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static void * ap_driver_init(struct hostapd_data *hapd,
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struct wpa_init_params *params)
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{
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struct ap_driver_data *drv;
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struct wpa_supplicant *wpa_s = hapd->iface->owner;
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drv = os_zalloc(sizeof(struct ap_driver_data));
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if (drv == NULL) {
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wpa_printf(MSG_ERROR, "Could not allocate memory for AP "
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"driver data");
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return NULL;
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}
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drv->hapd = hapd;
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os_memcpy(hapd->own_addr, wpa_s->own_addr, ETH_ALEN);
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return drv;
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}
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static void ap_driver_deinit(void *priv)
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{
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struct ap_driver_data *drv = priv;
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os_free(drv);
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}
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static int ap_driver_send_ether(void *priv, const u8 *dst, const u8 *src,
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u16 proto, const u8 *data, size_t data_len)
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{
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wpa_printf(MSG_DEBUG, "AP TODO: %s", __func__);
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return -1;
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}
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static int ap_driver_set_key(const char *iface, void *priv, wpa_alg alg,
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const u8 *addr, int key_idx, int set_tx,
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const u8 *seq, size_t seq_len, const u8 *key,
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size_t key_len)
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{
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struct ap_driver_data *drv = priv;
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struct wpa_supplicant *wpa_s = drv->hapd->iface->owner;
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return wpa_drv_set_key(wpa_s, alg, addr, key_idx, set_tx, seq, seq_len,
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key, key_len);
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}
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static int ap_driver_get_seqnum(const char *iface, void *priv, const u8 *addr,
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int idx, u8 *seq)
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{
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wpa_printf(MSG_DEBUG, "AP TODO: %s", __func__);
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return -1;
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}
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static int ap_driver_flush(void *priv)
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{
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wpa_printf(MSG_DEBUG, "AP TODO: %s", __func__);
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return -1;
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}
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static int ap_driver_read_sta_data(void *priv,
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struct hostap_sta_driver_data *data,
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const u8 *addr)
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{
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wpa_printf(MSG_DEBUG, "AP TODO: %s", __func__);
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return -1;
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}
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static int ap_driver_sta_set_flags(void *priv, const u8 *addr, int total_flags,
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int flags_or, int flags_and)
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{
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struct ap_driver_data *drv = priv;
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struct wpa_supplicant *wpa_s = drv->hapd->iface->owner;
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return wpa_drv_sta_set_flags(wpa_s, addr, total_flags, flags_or,
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flags_and);
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}
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static int ap_driver_sta_deauth(void *priv, const u8 *own_addr, const u8 *addr,
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int reason)
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{
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wpa_printf(MSG_DEBUG, "AP TODO: %s", __func__);
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return -1;
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}
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static int ap_driver_sta_disassoc(void *priv, const u8 *own_addr,
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const u8 *addr, int reason)
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{
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wpa_printf(MSG_DEBUG, "AP TODO: %s", __func__);
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return -1;
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}
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static int ap_driver_sta_remove(void *priv, const u8 *addr)
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{
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struct ap_driver_data *drv = priv;
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struct wpa_supplicant *wpa_s = drv->hapd->iface->owner;
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return wpa_drv_sta_remove(wpa_s, addr);
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}
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static int ap_driver_send_mlme(void *priv, const u8 *data, size_t len)
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{
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struct ap_driver_data *drv = priv;
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struct wpa_supplicant *wpa_s = drv->hapd->iface->owner;
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return wpa_drv_send_mlme(wpa_s, data, len);
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}
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static int ap_driver_sta_add(const char *ifname, void *priv,
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struct hostapd_sta_add_params *params)
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{
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struct ap_driver_data *drv = priv;
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struct wpa_supplicant *wpa_s = drv->hapd->iface->owner;
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return wpa_drv_sta_add(wpa_s, params);
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}
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static int ap_driver_get_inact_sec(void *priv, const u8 *addr)
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{
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wpa_printf(MSG_DEBUG, "AP TODO: %s", __func__);
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return -1;
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}
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static int ap_driver_set_freq(void *priv, struct hostapd_freq_params *freq)
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{
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wpa_printf(MSG_DEBUG, "AP TODO: %s", __func__);
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return 0;
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}
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static int ap_driver_set_beacon(const char *iface, void *priv,
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const u8 *head, size_t head_len,
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const u8 *tail, size_t tail_len,
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int dtim_period, int beacon_int)
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{
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struct ap_driver_data *drv = priv;
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struct wpa_supplicant *wpa_s = drv->hapd->iface->owner;
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return wpa_drv_set_beacon(wpa_s, head, head_len, tail, tail_len,
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dtim_period, beacon_int);
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}
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static int ap_driver_set_cts_protect(void *priv, int value)
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{
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wpa_printf(MSG_DEBUG, "AP TODO: %s", __func__);
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return -1;
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}
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static int ap_driver_set_preamble(void *priv, int value)
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{
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wpa_printf(MSG_DEBUG, "AP TODO: %s", __func__);
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return -1;
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}
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static int ap_driver_set_short_slot_time(void *priv, int value)
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{
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wpa_printf(MSG_DEBUG, "AP TODO: %s", __func__);
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return -1;
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}
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static int ap_driver_set_tx_queue_params(void *priv, int queue, int aifs,
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int cw_min, int cw_max,
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int burst_time)
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{
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wpa_printf(MSG_DEBUG, "AP TODO: %s", __func__);
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return -1;
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}
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static struct hostapd_hw_modes *ap_driver_get_hw_feature_data(void *priv,
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u16 *num_modes,
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u16 *flags)
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{
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struct ap_driver_data *drv = priv;
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struct wpa_supplicant *wpa_s = drv->hapd->iface->owner;
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return wpa_drv_get_hw_feature_data(wpa_s, num_modes, flags);
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}
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static int ap_driver_hapd_send_eapol(void *priv, const u8 *addr,
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const u8 *data, size_t data_len,
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int encrypt, const u8 *own_addr)
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{
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struct ap_driver_data *drv = priv;
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struct wpa_supplicant *wpa_s = drv->hapd->iface->owner;
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return wpa_drv_hapd_send_eapol(wpa_s, addr, data, data_len, encrypt,
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own_addr);
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}
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struct wpa_driver_ops ap_driver_ops =
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{
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.name = "wpa_supplicant",
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.hapd_init = ap_driver_init,
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.hapd_deinit = ap_driver_deinit,
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.send_ether = ap_driver_send_ether,
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.set_key = ap_driver_set_key,
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.get_seqnum = ap_driver_get_seqnum,
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.flush = ap_driver_flush,
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.read_sta_data = ap_driver_read_sta_data,
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.sta_set_flags = ap_driver_sta_set_flags,
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.sta_deauth = ap_driver_sta_deauth,
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.sta_disassoc = ap_driver_sta_disassoc,
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.sta_remove = ap_driver_sta_remove,
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.send_mlme = ap_driver_send_mlme,
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.sta_add = ap_driver_sta_add,
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.get_inact_sec = ap_driver_get_inact_sec,
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.set_freq = ap_driver_set_freq,
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.set_beacon = ap_driver_set_beacon,
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.set_cts_protect = ap_driver_set_cts_protect,
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.set_preamble = ap_driver_set_preamble,
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.set_short_slot_time = ap_driver_set_short_slot_time,
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.set_tx_queue_params = ap_driver_set_tx_queue_params,
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.get_hw_feature_data = ap_driver_get_hw_feature_data,
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.hapd_send_eapol = ap_driver_hapd_send_eapol,
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};
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extern struct wpa_driver_ops *wpa_drivers[];
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static int wpa_supplicant_conf_ap(struct wpa_supplicant *wpa_s,
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struct wpa_ssid *ssid,
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struct hostapd_config *conf)
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{
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struct hostapd_bss_config *bss = &conf->bss[0];
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int j, pairwise;
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int pairwise;
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for (j = 0; wpa_drivers[j]; j++) {
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if (os_strcmp("wpa_supplicant", wpa_drivers[j]->name) == 0) {
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conf->driver = wpa_drivers[j];
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break;
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}
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}
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if (conf->driver == NULL) {
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wpa_printf(MSG_ERROR, "No AP driver ops found");
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return -1;
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}
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conf->driver = wpa_s->driver;
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os_strlcpy(bss->iface, wpa_s->ifname, sizeof(bss->iface));
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@ -402,40 +159,6 @@ static int wpa_supplicant_conf_ap(struct wpa_supplicant *wpa_s,
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}
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static int hostapd_driver_init(struct hostapd_iface *iface)
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{
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struct wpa_init_params params;
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struct hostapd_data *hapd = iface->bss[0];
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if (hapd->driver == NULL || hapd->driver->hapd_init == NULL) {
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wpa_printf(MSG_ERROR, "No hostapd driver wrapper available");
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return -1;
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}
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os_memset(¶ms, 0, sizeof(params));
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params.ifname = hapd->conf->iface;
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params.ssid = (const u8 *) hapd->conf->ssid.ssid;
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params.ssid_len = hapd->conf->ssid.ssid_len;
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params.num_bridge = hapd->iface->num_bss;
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params.bridge = os_zalloc(hapd->iface->num_bss * sizeof(char *));
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if (params.bridge == NULL)
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return -1;
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params.own_addr = hapd->own_addr;
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hapd->drv_priv = hapd->driver->hapd_init(hapd, ¶ms);
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os_free(params.bridge);
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if (hapd->drv_priv == NULL) {
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wpa_printf(MSG_ERROR, "%s driver initialization failed.",
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hapd->driver->name);
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hapd->driver = NULL;
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return -1;
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}
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return 0;
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}
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int wpa_supplicant_create_ap(struct wpa_supplicant *wpa_s,
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struct wpa_ssid *ssid)
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{
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@ -502,8 +225,11 @@ int wpa_supplicant_create_ap(struct wpa_supplicant *wpa_s,
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hapd_iface->bss[i]->msg_ctx = wpa_s;
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}
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if (hostapd_driver_init(wpa_s->ap_iface) ||
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hostapd_setup_interface(wpa_s->ap_iface)) {
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os_memcpy(hapd_iface->bss[0]->own_addr, wpa_s->own_addr, ETH_ALEN);
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hapd_iface->bss[0]->driver = wpa_s->driver;
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hapd_iface->bss[0]->drv_priv = wpa_s->drv_priv;
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if (hostapd_setup_interface(wpa_s->ap_iface)) {
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wpa_printf(MSG_ERROR, "Failed to initialize AP interface");
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wpa_supplicant_ap_deinit(wpa_s);
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return -1;
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@ -519,18 +245,11 @@ int wpa_supplicant_create_ap(struct wpa_supplicant *wpa_s,
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void wpa_supplicant_ap_deinit(struct wpa_supplicant *wpa_s)
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{
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const struct wpa_driver_ops *driver;
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void *drv_priv;
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if (wpa_s->ap_iface == NULL)
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return;
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driver = wpa_s->ap_iface->bss[0]->driver;
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drv_priv = wpa_s->ap_iface->bss[0]->drv_priv;
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hostapd_interface_deinit(wpa_s->ap_iface);
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wpa_s->ap_iface = NULL;
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if (driver && driver->hapd_deinit)
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driver->hapd_deinit(drv_priv);
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}
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