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nl80211: Add l2_packet for AP mode EAPOL TX without monitor iface

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This can be used with drivers that do not support monitor interface
when transmitting EAPOL frames in AP mode.
This commit is contained in:
Jouni Malinen 2011-08-09 14:04:53 +03:00 committed by Jouni Malinen
parent 9db931ed6d
commit f10bfc9adb
1 changed files with 44 additions and 0 deletions
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44
src/drivers/driver_nl80211.c
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@ -34,6 +34,7 @@
#include "eloop.h"
#include "utils/list.h"
#include "common/ieee802_11_defs.h"
#include "l2_packet/l2_packet.h"
#include "netlink.h"
#include "linux_ioctl.h"
#include "radiotap.h"
@ -174,6 +175,10 @@ struct wpa_driver_nl80211_data {
struct i802_bss first_bss;
#ifdef CONFIG_AP
struct l2_packet_data *l2;
#endif /* CONFIG_AP */
#ifdef HOSTAPD
int eapol_sock; /* socket for EAPOL frames */
@ -1954,6 +1959,16 @@ static void nl80211_get_phy_name(struct wpa_driver_nl80211_data *drv)
}
#ifdef CONFIG_AP
static void nl80211_l2_read(void *ctx, const u8 *src_addr, const u8 *buf,
size_t len)
{
wpa_printf(MSG_DEBUG, "nl80211: l2_packet read %u",
(unsigned int) len);
}
#endif /* CONFIG_AP */
/**
* wpa_driver_nl80211_init - Initialize nl80211 driver interface
* @ctx: context to be used when calling wpa_supplicant functions,
@ -2024,6 +2039,11 @@ static void * wpa_driver_nl80211_init(void *ctx, const char *ifname,
if (wpa_driver_nl80211_finish_drv_init(drv))
goto failed;
#ifdef CONFIG_AP
drv->l2 = l2_packet_init(ifname, NULL, ETH_P_EAPOL,
nl80211_l2_read, drv, 0);
#endif /* CONFIG_AP */
if (drv->global)
dl_list_add(&drv->global->interfaces, &drv->list);
@ -2234,6 +2254,11 @@ static void wpa_driver_nl80211_deinit(void *priv)
struct i802_bss *bss = priv;
struct wpa_driver_nl80211_data *drv = bss->drv;
#ifdef CONFIG_AP
if (drv->l2)
l2_packet_deinit(drv->l2);
#endif /* CONFIG_AP */
if (drv->nl_handle_preq)
wpa_driver_nl80211_probe_req_report(bss, 0);
if (bss->added_if_into_bridge) {
@ -4480,6 +4505,21 @@ nl80211_create_monitor_interface(struct wpa_driver_nl80211_data *drv)
}
static int nl80211_send_eapol_data(struct i802_bss *bss,
const u8 *addr, const u8 *data,
size_t data_len, const u8 *own_addr)
{
if (bss->drv->l2 == NULL) {
wpa_printf(MSG_DEBUG, "nl80211: No l2_packet to send EAPOL");
return -1;
}
if (l2_packet_send(bss->drv->l2, addr, ETH_P_EAPOL, data, data_len) <
0)
return -1;
return 0;
}
static const u8 rfc1042_header[6] = { 0xaa, 0xaa, 0x03, 0x00, 0x00, 0x00 };
static int wpa_driver_nl80211_hapd_send_eapol(
@ -4494,6 +4534,10 @@ static int wpa_driver_nl80211_hapd_send_eapol(
int res;
int qos = flags & WPA_STA_WMM;
if (drv->no_monitor_iface_capab)
return nl80211_send_eapol_data(bss, addr, data, data_len,
own_addr);
len = sizeof(*hdr) + (qos ? 2 : 0) + sizeof(rfc1042_header) + 2 +
data_len;
hdr = os_zalloc(len);