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gfiber / vendor / opensource / hostap / fb71cf400972142b559542ac180c1a7214972f3f / . / src / drivers / driver_bsd.c
blob: 0f1a0f60f27d69766c9d3b166cf8e8526fdd2997 [file] [log] [blame]
/*
* WPA Supplicant - driver interaction with BSD net80211 layer
* Copyright (c) 2004, Sam Leffler <sam@errno.com>
* Copyright (c) 2004, 2Wire, Inc
*
* This software may be distributed under the terms of the BSD license.
* See README for more details.
*/
#include "includes.h"
#include <sys/ioctl.h>
#include <sys/sysctl.h>
#include "common.h"
#include "driver.h"
#include "eloop.h"
#include "common/ieee802_11_defs.h"
#include "common/wpa_common.h"
#include <net/if.h>
#include <net/if_media.h>
#ifdef __NetBSD__
#include <net/if_ether.h>
#else
#include <net/ethernet.h>
#endif
#include <net/route.h>
#ifdef __DragonFly__
#include <netproto/802_11/ieee80211_ioctl.h>
#include <netproto/802_11/ieee80211_dragonfly.h>
#else /* __DragonFly__ */
#ifdef __GLIBC__
#include <netinet/ether.h>
#endif /* __GLIBC__ */
#include <net80211/ieee80211.h>
#include <net80211/ieee80211_ioctl.h>
#include <net80211/ieee80211_crypto.h>
#endif /* __DragonFly__ || __GLIBC__ */
#if defined(__FreeBSD__) || defined(__FreeBSD_kernel__)
#include <net80211/ieee80211_freebsd.h>
#endif
#if __NetBSD__
#include <net80211/ieee80211_netbsd.h>
#endif
#include "l2_packet/l2_packet.h"
struct bsd_driver_data {
struct hostapd_data *hapd; /* back pointer */
int sock; /* open socket for 802.11 ioctls */
struct l2_packet_data *sock_xmit;/* raw packet xmit socket */
int route; /* routing socket for events */
char ifname[IFNAMSIZ+1]; /* interface name */
unsigned int ifindex; /* interface index */
void *ctx;
struct wpa_driver_capa capa; /* driver capability */
int is_ap; /* Access point mode */
int prev_roaming; /* roaming state to restore on deinit */
int prev_privacy; /* privacy state to restore on deinit */
int prev_wpa; /* wpa state to restore on deinit */
enum ieee80211_opmode opmode; /* operation mode */
char *event_buf;
size_t event_buf_len;
};
/* Generic functions for hostapd and wpa_supplicant */
static int
bsd_set80211(void *priv, int op, int val, const void *arg, int arg_len)
{
struct bsd_driver_data *drv = priv;
struct ieee80211req ireq;
os_memset(&ireq, 0, sizeof(ireq));
os_strlcpy(ireq.i_name, drv->ifname, sizeof(ireq.i_name));
ireq.i_type = op;
ireq.i_val = val;
ireq.i_data = (void *) arg;
ireq.i_len = arg_len;
if (ioctl(drv->sock, SIOCS80211, &ireq) < 0) {
wpa_printf(MSG_ERROR, "ioctl[SIOCS80211, op=%u, val=%u, "
"arg_len=%u]: %s", op, val, arg_len,
strerror(errno));
return -1;
}
return 0;
}
static int
bsd_get80211(void *priv, struct ieee80211req *ireq, int op, void *arg,
int arg_len)
{
struct bsd_driver_data *drv = priv;
os_memset(ireq, 0, sizeof(*ireq));
os_strlcpy(ireq->i_name, drv->ifname, sizeof(ireq->i_name));
ireq->i_type = op;
ireq->i_len = arg_len;
ireq->i_data = arg;
if (ioctl(drv->sock, SIOCG80211, ireq) < 0) {
wpa_printf(MSG_ERROR, "ioctl[SIOCS80211, op=%u, "
"arg_len=%u]: %s", op, arg_len, strerror(errno));
return -1;
}
return 0;
}
static int
get80211var(struct bsd_driver_data *drv, int op, void *arg, int arg_len)
{
struct ieee80211req ireq;
if (bsd_get80211(drv, &ireq, op, arg, arg_len) < 0)
return -1;
return ireq.i_len;
}
static int
set80211var(struct bsd_driver_data *drv, int op, const void *arg, int arg_len)
{
return bsd_set80211(drv, op, 0, arg, arg_len);
}
static int
set80211param(struct bsd_driver_data *drv, int op, int arg)
{
return bsd_set80211(drv, op, arg, NULL, 0);
}
static int
bsd_get_ssid(void *priv, u8 *ssid, int len)
{
struct bsd_driver_data *drv = priv;
#ifdef SIOCG80211NWID
struct ieee80211_nwid nwid;
struct ifreq ifr;
os_memset(&ifr, 0, sizeof(ifr));
os_strlcpy(ifr.ifr_name, drv->ifname, sizeof(ifr.ifr_name));
ifr.ifr_data = (void *)&nwid;
if (ioctl(drv->sock, SIOCG80211NWID, &ifr) < 0 ||
nwid.i_len > IEEE80211_NWID_LEN)
return -1;
os_memcpy(ssid, nwid.i_nwid, nwid.i_len);
return nwid.i_len;
#else
return get80211var(drv, IEEE80211_IOC_SSID, ssid, IEEE80211_NWID_LEN);
#endif
}
static int
bsd_set_ssid(void *priv, const u8 *ssid, int ssid_len)
{
struct bsd_driver_data *drv = priv;
#ifdef SIOCS80211NWID
struct ieee80211_nwid nwid;
struct ifreq ifr;
os_memcpy(nwid.i_nwid, ssid, ssid_len);
nwid.i_len = ssid_len;
os_memset(&ifr, 0, sizeof(ifr));
os_strlcpy(ifr.ifr_name, drv->ifname, sizeof(ifr.ifr_name));
ifr.ifr_data = (void *)&nwid;
return ioctl(drv->sock, SIOCS80211NWID, &ifr);
#else
return set80211var(drv, IEEE80211_IOC_SSID, ssid, ssid_len);
#endif
}
static int
bsd_get_if_media(void *priv)
{
struct bsd_driver_data *drv = priv;
struct ifmediareq ifmr;
os_memset(&ifmr, 0, sizeof(ifmr));
os_strlcpy(ifmr.ifm_name, drv->ifname, sizeof(ifmr.ifm_name));
if (ioctl(drv->sock, SIOCGIFMEDIA, &ifmr) < 0) {
wpa_printf(MSG_ERROR, "%s: SIOCGIFMEDIA %s", __func__,
strerror(errno));
return -1;
}
return ifmr.ifm_current;
}
static int
bsd_set_if_media(void *priv, int media)
{
struct bsd_driver_data *drv = priv;
struct ifreq ifr;
os_memset(&ifr, 0, sizeof(ifr));
os_strlcpy(ifr.ifr_name, drv->ifname, sizeof(ifr.ifr_name));
ifr.ifr_media = media;
if (ioctl(drv->sock, SIOCSIFMEDIA, &ifr) < 0) {
wpa_printf(MSG_ERROR, "%s: SIOCSIFMEDIA %s", __func__,
strerror(errno));
return -1;
}
return 0;
}
static int
bsd_set_mediaopt(void *priv, uint32_t mask, uint32_t mode)
{
int media = bsd_get_if_media(priv);
if (media < 0)
return -1;
media &= ~mask;
media |= mode;
if (bsd_set_if_media(priv, media) < 0)
return -1;
return 0;
}
static int
bsd_del_key(void *priv, const u8 *addr, int key_idx)
{
struct ieee80211req_del_key wk;
os_memset(&wk, 0, sizeof(wk));
if (addr == NULL) {
wpa_printf(MSG_DEBUG, "%s: key_idx=%d", __func__, key_idx);
wk.idk_keyix = key_idx;
} else {
wpa_printf(MSG_DEBUG, "%s: addr=" MACSTR, __func__,
MAC2STR(addr));
os_memcpy(wk.idk_macaddr, addr, IEEE80211_ADDR_LEN);
wk.idk_keyix = (u_int8_t) IEEE80211_KEYIX_NONE; /* XXX */
}
return set80211var(priv, IEEE80211_IOC_DELKEY, &wk, sizeof(wk));
}
static int
bsd_send_mlme_param(void *priv, const u8 op, const u16 reason, const u8 *addr)
{
struct ieee80211req_mlme mlme;
os_memset(&mlme, 0, sizeof(mlme));
mlme.im_op = op;
mlme.im_reason = reason;
os_memcpy(mlme.im_macaddr, addr, IEEE80211_ADDR_LEN);
return set80211var(priv, IEEE80211_IOC_MLME, &mlme, sizeof(mlme));
}
static int
bsd_ctrl_iface(void *priv, int enable)
{
struct bsd_driver_data *drv = priv;
struct ifreq ifr;
os_memset(&ifr, 0, sizeof(ifr));
os_strlcpy(ifr.ifr_name, drv->ifname, sizeof(ifr.ifr_name));
if (ioctl(drv->sock, SIOCGIFFLAGS, &ifr) < 0) {
wpa_printf(MSG_ERROR, "ioctl[SIOCGIFFLAGS]: %s",
strerror(errno));
return -1;
}
if (enable) {
if (ifr.ifr_flags & IFF_UP)
return 0;
ifr.ifr_flags |= IFF_UP;
} else {
if (!(ifr.ifr_flags & IFF_UP))
return 0;
ifr.ifr_flags &= ~IFF_UP;
}
if (ioctl(drv->sock, SIOCSIFFLAGS, &ifr) < 0) {
wpa_printf(MSG_ERROR, "ioctl[SIOCSIFFLAGS]: %s",
strerror(errno));
return -1;
}
return 0;
}
static int
bsd_set_key(const char *ifname, void *priv, enum wpa_alg alg,
const unsigned char *addr, int key_idx, int set_tx, const u8 *seq,
size_t seq_len, const u8 *key, size_t key_len)
{
struct ieee80211req_key wk;
#ifdef IEEE80211_KEY_NOREPLAY
struct bsd_driver_data *drv = priv;
#endif /* IEEE80211_KEY_NOREPLAY */
wpa_printf(MSG_DEBUG, "%s: alg=%d addr=%p key_idx=%d set_tx=%d "
"seq_len=%zu key_len=%zu", __func__, alg, addr, key_idx,
set_tx, seq_len, key_len);
if (alg == WPA_ALG_NONE) {
#ifndef HOSTAPD
if (addr == NULL || is_broadcast_ether_addr(addr))
return bsd_del_key(priv, NULL, key_idx);
else
#endif /* HOSTAPD */
return bsd_del_key(priv, addr, key_idx);
}
os_memset(&wk, 0, sizeof(wk));
switch (alg) {
case WPA_ALG_WEP:
wk.ik_type = IEEE80211_CIPHER_WEP;
break;
case WPA_ALG_TKIP:
wk.ik_type = IEEE80211_CIPHER_TKIP;
break;
case WPA_ALG_CCMP:
wk.ik_type = IEEE80211_CIPHER_AES_CCM;
break;
default:
wpa_printf(MSG_ERROR, "%s: unknown alg=%d", __func__, alg);
return -1;
}
wk.ik_flags = IEEE80211_KEY_RECV;
if (set_tx)
wk.ik_flags |= IEEE80211_KEY_XMIT;
if (addr == NULL) {
os_memset(wk.ik_macaddr, 0xff, IEEE80211_ADDR_LEN);
wk.ik_keyix = key_idx;
} else {
os_memcpy(wk.ik_macaddr, addr, IEEE80211_ADDR_LEN);
/*
* Deduce whether group/global or unicast key by checking
* the address (yech). Note also that we can only mark global
* keys default; doing this for a unicast key is an error.
*/
if (is_broadcast_ether_addr(addr)) {
wk.ik_flags |= IEEE80211_KEY_GROUP;
wk.ik_keyix = key_idx;
} else {
wk.ik_keyix = key_idx == 0 ? IEEE80211_KEYIX_NONE :
key_idx;
}
}
if (wk.ik_keyix != IEEE80211_KEYIX_NONE && set_tx)
wk.ik_flags |= IEEE80211_KEY_DEFAULT;
#ifndef HOSTAPD
#ifdef IEEE80211_KEY_NOREPLAY
/*
* Ignore replay failures in IBSS and AHDEMO mode.
*/
if (drv->opmode == IEEE80211_M_IBSS ||
drv->opmode == IEEE80211_M_AHDEMO)
wk.ik_flags |= IEEE80211_KEY_NOREPLAY;
#endif /* IEEE80211_KEY_NOREPLAY */
#endif /* HOSTAPD */
wk.ik_keylen = key_len;
if (seq) {
#ifdef WORDS_BIGENDIAN
/*
* wk.ik_keyrsc is in host byte order (big endian), need to
* swap it to match with the byte order used in WPA.
*/
int i;
u8 *keyrsc = (u8 *) &wk.ik_keyrsc;
for (i = 0; i < seq_len; i++)
keyrsc[WPA_KEY_RSC_LEN - i - 1] = seq[i];
#else /* WORDS_BIGENDIAN */
os_memcpy(&wk.ik_keyrsc, seq, seq_len);
#endif /* WORDS_BIGENDIAN */
}
os_memcpy(wk.ik_keydata, key, key_len);
return set80211var(priv, IEEE80211_IOC_WPAKEY, &wk, sizeof(wk));
}
static int
bsd_configure_wpa(void *priv, struct wpa_bss_params *params)
{
#ifndef IEEE80211_IOC_APPIE
static const char *ciphernames[] =
{ "WEP", "TKIP", "AES-OCB", "AES-CCM", "CKIP", "NONE" };
int v;
switch (params->wpa_group) {
case WPA_CIPHER_CCMP:
v = IEEE80211_CIPHER_AES_CCM;
break;
case WPA_CIPHER_TKIP:
v = IEEE80211_CIPHER_TKIP;
break;
case WPA_CIPHER_WEP104:
v = IEEE80211_CIPHER_WEP;
break;
case WPA_CIPHER_WEP40:
v = IEEE80211_CIPHER_WEP;
break;
case WPA_CIPHER_NONE:
v = IEEE80211_CIPHER_NONE;
break;
default:
wpa_printf(MSG_INFO, "Unknown group key cipher %u",
params->wpa_group);
return -1;
}
wpa_printf(MSG_DEBUG, "%s: group key cipher=%s (%u)",
__func__, ciphernames[v], v);
if (set80211param(priv, IEEE80211_IOC_MCASTCIPHER, v)) {
wpa_printf(MSG_INFO,
"Unable to set group key cipher to %u (%s)",
v, ciphernames[v]);
return -1;
}
if (v == IEEE80211_CIPHER_WEP) {
/* key length is done only for specific ciphers */
v = (params->wpa_group == WPA_CIPHER_WEP104 ? 13 : 5);
if (set80211param(priv, IEEE80211_IOC_MCASTKEYLEN, v)) {
wpa_printf(MSG_INFO,
"Unable to set group key length to %u", v);
return -1;
}
}
v = 0;
if (params->wpa_pairwise & WPA_CIPHER_CCMP)
v |= 1<<IEEE80211_CIPHER_AES_CCM;
if (params->wpa_pairwise & WPA_CIPHER_TKIP)
v |= 1<<IEEE80211_CIPHER_TKIP;
if (params->wpa_pairwise & WPA_CIPHER_NONE)
v |= 1<<IEEE80211_CIPHER_NONE;
wpa_printf(MSG_DEBUG, "%s: pairwise key ciphers=0x%x", __func__, v);
if (set80211param(priv, IEEE80211_IOC_UCASTCIPHERS, v)) {
wpa_printf(MSG_INFO,
"Unable to set pairwise key ciphers to 0x%x", v);
return -1;
}
wpa_printf(MSG_DEBUG, "%s: key management algorithms=0x%x",
__func__, params->wpa_key_mgmt);
if (set80211param(priv, IEEE80211_IOC_KEYMGTALGS,
params->wpa_key_mgmt)) {
wpa_printf(MSG_INFO,
"Unable to set key management algorithms to 0x%x",
params->wpa_key_mgmt);
return -1;
}
v = 0;
if (params->rsn_preauth)
v |= BIT(0);
wpa_printf(MSG_DEBUG, "%s: rsn capabilities=0x%x",
__func__, params->rsn_preauth);
if (set80211param(priv, IEEE80211_IOC_RSNCAPS, v)) {
wpa_printf(MSG_INFO, "Unable to set RSN capabilities to 0x%x",
v);
return -1;
}
#endif /* IEEE80211_IOC_APPIE */
wpa_printf(MSG_DEBUG, "%s: enable WPA= 0x%x", __func__, params->wpa);
if (set80211param(priv, IEEE80211_IOC_WPA, params->wpa)) {
wpa_printf(MSG_INFO, "Unable to set WPA to %u", params->wpa);
return -1;
}
return 0;
}
static int
bsd_set_ieee8021x(void *priv, struct wpa_bss_params *params)
{
wpa_printf(MSG_DEBUG, "%s: enabled=%d", __func__, params->enabled);
if (!params->enabled) {
/* XXX restore state */
return set80211param(priv, IEEE80211_IOC_AUTHMODE,
IEEE80211_AUTH_AUTO);
}
if (!params->wpa && !params->ieee802_1x) {
wpa_printf(MSG_ERROR, "%s: No 802.1X or WPA enabled",
__func__);
return -1;
}
if (params->wpa && bsd_configure_wpa(priv, params) != 0) {
wpa_printf(MSG_ERROR, "%s: Failed to configure WPA state",
__func__);
return -1;
}
if (set80211param(priv, IEEE80211_IOC_AUTHMODE,
(params->wpa ? IEEE80211_AUTH_WPA : IEEE80211_AUTH_8021X))) {
wpa_printf(MSG_ERROR, "%s: Failed to enable WPA/802.1X",
__func__);
return -1;
}
return bsd_ctrl_iface(priv, 1);
}
static void
bsd_new_sta(void *priv, void *ctx, u8 addr[IEEE80211_ADDR_LEN])
{
struct ieee80211req_wpaie ie;
int ielen = 0;
u8 *iebuf = NULL;
/*
* Fetch and validate any negotiated WPA/RSN parameters.
*/
memset(&ie, 0, sizeof(ie));
memcpy(ie.wpa_macaddr, addr, IEEE80211_ADDR_LEN);
if (get80211var(priv, IEEE80211_IOC_WPAIE, &ie, sizeof(ie)) < 0) {
wpa_printf(MSG_INFO,
"Failed to get WPA/RSN information element");
goto no_ie;
}
iebuf = ie.wpa_ie;
ielen = ie.wpa_ie[1];
if (ielen == 0)
iebuf = NULL;
else
ielen += 2;
no_ie:
drv_event_assoc(ctx, addr, iebuf, ielen, 0);
}
static int
bsd_send_eapol(void *priv, const u8 *addr, const u8 *data, size_t data_len,
int encrypt, const u8 *own_addr, u32 flags)
{
struct bsd_driver_data *drv = priv;
wpa_hexdump(MSG_MSGDUMP, "TX EAPOL", data, data_len);
return l2_packet_send(drv->sock_xmit, addr, ETH_P_EAPOL, data,
data_len);
}
static int
bsd_set_freq(void *priv, struct hostapd_freq_params *freq)
{
struct bsd_driver_data *drv = priv;
#ifdef SIOCS80211CHANNEL
struct ieee80211chanreq creq;
#endif /* SIOCS80211CHANNEL */
u32 mode;
int channel = freq->channel;
if (channel < 14) {
mode =
#ifdef CONFIG_IEEE80211N
freq->ht_enabled ? IFM_IEEE80211_11NG :
#endif /* CONFIG_IEEE80211N */
IFM_IEEE80211_11G;
} else if (channel == 14) {
mode = IFM_IEEE80211_11B;
} else {
mode =
#ifdef CONFIG_IEEE80211N
freq->ht_enabled ? IFM_IEEE80211_11NA :
#endif /* CONFIG_IEEE80211N */
IFM_IEEE80211_11A;
}
if (bsd_set_mediaopt(drv, IFM_MMASK, mode) < 0) {
wpa_printf(MSG_ERROR, "%s: failed to set modulation mode",
__func__);
return -1;
}
#ifdef SIOCS80211CHANNEL
os_memset(&creq, 0, sizeof(creq));
os_strlcpy(creq.i_name, drv->ifname, sizeof(creq.i_name));
creq.i_channel = (u_int16_t)channel;
return ioctl(drv->sock, SIOCS80211CHANNEL, &creq);
#else /* SIOCS80211CHANNEL */
return set80211param(priv, IEEE80211_IOC_CHANNEL, channel);
#endif /* SIOCS80211CHANNEL */
}
static int
bsd_set_opt_ie(void *priv, const u8 *ie, size_t ie_len)
{
#ifdef IEEE80211_IOC_APPIE
wpa_printf(MSG_DEBUG, "%s: set WPA+RSN ie (len %lu)", __func__,
(unsigned long)ie_len);
return bsd_set80211(priv, IEEE80211_IOC_APPIE, IEEE80211_APPIE_WPA,
ie, ie_len);
#endif /* IEEE80211_IOC_APPIE */
return 0;
}
static size_t
rtbuf_len(void)
{
size_t len;
int mib[6] = {CTL_NET, AF_ROUTE, 0, AF_INET, NET_RT_DUMP, 0};
if (sysctl(mib, 6, NULL, &len, NULL, 0) < 0) {
wpa_printf(MSG_WARNING, "%s failed: %s", __func__,
strerror(errno));
len = 2048;
}
return len;
}
#ifdef HOSTAPD
/*
* Avoid conflicts with hostapd definitions by undefining couple of defines
* from net80211 header files.
*/
#undef RSN_VERSION
#undef WPA_VERSION
#undef WPA_OUI_TYPE
static int bsd_sta_deauth(void *priv, const u8 *own_addr, const u8 *addr,
int reason_code);
static const char *
ether_sprintf(const u8 *addr)
{
static char buf[sizeof(MACSTR)];
if (addr != NULL)
snprintf(buf, sizeof(buf), MACSTR, MAC2STR(addr));
else
snprintf(buf, sizeof(buf), MACSTR, 0,0,0,0,0,0);
return buf;
}
static int
bsd_set_privacy(void *priv, int enabled)
{
wpa_printf(MSG_DEBUG, "%s: enabled=%d", __func__, enabled);
return set80211param(priv, IEEE80211_IOC_PRIVACY, enabled);
}
static int
bsd_get_seqnum(const char *ifname, void *priv, const u8 *addr, int idx,
u8 *seq)
{
struct ieee80211req_key wk;
wpa_printf(MSG_DEBUG, "%s: addr=%s idx=%d",
__func__, ether_sprintf(addr), idx);
memset(&wk, 0, sizeof(wk));
if (addr == NULL)
memset(wk.ik_macaddr, 0xff, IEEE80211_ADDR_LEN);
else
memcpy(wk.ik_macaddr, addr, IEEE80211_ADDR_LEN);
wk.ik_keyix = idx;
if (get80211var(priv, IEEE80211_IOC_WPAKEY, &wk, sizeof(wk)) < 0) {
wpa_printf(MSG_INFO, "Failed to get encryption");
return -1;
}
#ifdef WORDS_BIGENDIAN
{
/*
* wk.ik_keytsc is in host byte order (big endian), need to
* swap it to match with the byte order used in WPA.
*/
int i;
u8 tmp[WPA_KEY_RSC_LEN];
memcpy(tmp, &wk.ik_keytsc, sizeof(wk.ik_keytsc));
for (i = 0; i < WPA_KEY_RSC_LEN; i++) {
seq[i] = tmp[WPA_KEY_RSC_LEN - i - 1];
}
}
#else /* WORDS_BIGENDIAN */
memcpy(seq, &wk.ik_keytsc, sizeof(wk.ik_keytsc));
#endif /* WORDS_BIGENDIAN */
return 0;
}
static int
bsd_flush(void *priv)
{
u8 allsta[IEEE80211_ADDR_LEN];
memset(allsta, 0xff, IEEE80211_ADDR_LEN);
return bsd_sta_deauth(priv, NULL, allsta, IEEE80211_REASON_AUTH_LEAVE);
}
static int
bsd_read_sta_driver_data(void *priv, struct hostap_sta_driver_data *data,
const u8 *addr)
{
struct ieee80211req_sta_stats stats;
memcpy(stats.is_u.macaddr, addr, IEEE80211_ADDR_LEN);
if (get80211var(priv, IEEE80211_IOC_STA_STATS, &stats, sizeof(stats))
> 0) {
/* XXX? do packets counts include non-data frames? */
data->rx_packets = stats.is_stats.ns_rx_data;
data->rx_bytes = stats.is_stats.ns_rx_bytes;
data->tx_packets = stats.is_stats.ns_tx_data;
data->tx_bytes = stats.is_stats.ns_tx_bytes;
}
return 0;
}
static int
bsd_sta_deauth(void *priv, const u8 *own_addr, const u8 *addr, int reason_code)
{
return bsd_send_mlme_param(priv, IEEE80211_MLME_DEAUTH, reason_code,
addr);
}
static int
bsd_sta_disassoc(void *priv, const u8 *own_addr, const u8 *addr,
int reason_code)
{
return bsd_send_mlme_param(priv, IEEE80211_MLME_DISASSOC, reason_code,
addr);
}
static void
bsd_wireless_event_receive(int sock, void *ctx, void *sock_ctx)
{
struct bsd_driver_data *drv = ctx;
struct if_announcemsghdr *ifan;
struct rt_msghdr *rtm;
struct ieee80211_michael_event *mic;
struct ieee80211_join_event *join;
struct ieee80211_leave_event *leave;
int n;
union wpa_event_data data;
n = read(sock, drv->event_buf, drv->event_buf_len);
if (n < 0) {
if (errno != EINTR && errno != EAGAIN)
wpa_printf(MSG_ERROR, "%s read() failed: %s",
__func__, strerror(errno));
return;
}
rtm = (struct rt_msghdr *) drv->event_buf;
if (rtm->rtm_version != RTM_VERSION) {
wpa_printf(MSG_DEBUG, "Invalid routing message version=%d",
rtm->rtm_version);
return;
}
ifan = (struct if_announcemsghdr *) rtm;
switch (rtm->rtm_type) {
case RTM_IEEE80211:
switch (ifan->ifan_what) {
case RTM_IEEE80211_ASSOC:
case RTM_IEEE80211_REASSOC:
case RTM_IEEE80211_DISASSOC:
case RTM_IEEE80211_SCAN:
break;
case RTM_IEEE80211_LEAVE:
leave = (struct ieee80211_leave_event *) &ifan[1];
drv_event_disassoc(drv->hapd, leave->iev_addr);
break;
case RTM_IEEE80211_JOIN:
#ifdef RTM_IEEE80211_REJOIN
case RTM_IEEE80211_REJOIN:
#endif
join = (struct ieee80211_join_event *) &ifan[1];
bsd_new_sta(drv, drv->hapd, join->iev_addr);
break;
case RTM_IEEE80211_REPLAY:
/* ignore */
break;
case RTM_IEEE80211_MICHAEL:
mic = (struct ieee80211_michael_event *) &ifan[1];
wpa_printf(MSG_DEBUG,
"Michael MIC failure wireless event: "
"keyix=%u src_addr=" MACSTR, mic->iev_keyix,
MAC2STR(mic->iev_src));
os_memset(&data, 0, sizeof(data));
data.michael_mic_failure.unicast = 1;
data.michael_mic_failure.src = mic->iev_src;
wpa_supplicant_event(drv->hapd,
EVENT_MICHAEL_MIC_FAILURE, &data);
break;
}
break;
}
}
static void
handle_read(void *ctx, const u8 *src_addr, const u8 *buf, size_t len)
{
struct bsd_driver_data *drv = ctx;
drv_event_eapol_rx(drv->hapd, src_addr, buf, len);
}
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) {
wpa_printf(MSG_ERROR, "Could not allocate memory for bsd driver data");
return NULL;
}
drv->event_buf_len = rtbuf_len();
drv->event_buf = os_malloc(drv->event_buf_len);
if (drv->event_buf == NULL) {
wpa_printf(MSG_ERROR, "%s: os_malloc() failed", __func__);
goto bad;
}
drv->hapd = hapd;
drv->sock = socket(PF_INET, SOCK_DGRAM, 0);
if (drv->sock < 0) {
wpa_printf(MSG_ERROR, "socket[PF_INET,SOCK_DGRAM]: %s",
strerror(errno));
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) {
wpa_printf(MSG_ERROR, "socket(PF_ROUTE,SOCK_RAW): %s",
strerror(errno));
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);
os_free(drv->event_buf);
if (drv != NULL)
os_free(drv);
return NULL;
}
static void
bsd_deinit(void *priv)
{
struct bsd_driver_data *drv = priv;
if (drv->route >= 0) {
eloop_unregister_read_sock(drv->route);
close(drv->route);
}
bsd_ctrl_iface(drv, 0);
if (drv->sock >= 0)
close(drv->sock);
if (drv->sock_xmit != NULL)
l2_packet_deinit(drv->sock_xmit);
os_free(drv->event_buf);
os_free(drv);
}
static int
bsd_commit(void *priv)
{
return bsd_ctrl_iface(priv, 1);
}
static int
bsd_set_sta_authorized(void *priv, const u8 *addr,
int total_flags, int flags_or, int flags_and)
{
int authorized = -1;
/* For now, only support setting Authorized flag */
if (flags_or & WPA_STA_AUTHORIZED)
authorized = 1;
if (!(flags_and & WPA_STA_AUTHORIZED))
authorized = 0;
if (authorized < 0)
return 0;
return bsd_send_mlme_param(priv, authorized ?
IEEE80211_MLME_AUTHORIZE :
IEEE80211_MLME_UNAUTHORIZE, 0, addr);
}
#else /* HOSTAPD */
static int
get80211param(struct bsd_driver_data *drv, int op)
{
struct ieee80211req ireq;
if (bsd_get80211(drv, &ireq, op, NULL, 0) < 0)
return -1;
return ireq.i_val;
}
static int
wpa_driver_bsd_get_bssid(void *priv, u8 *bssid)
{
struct bsd_driver_data *drv = priv;
#ifdef SIOCG80211BSSID
struct ieee80211_bssid bs;
os_strlcpy(bs.i_name, drv->ifname, sizeof(bs.i_name));
if (ioctl(drv->sock, SIOCG80211BSSID, &bs) < 0)
return -1;
os_memcpy(bssid, bs.i_bssid, sizeof(bs.i_bssid));
return 0;
#else
return get80211var(drv, IEEE80211_IOC_BSSID,
bssid, IEEE80211_ADDR_LEN) < 0 ? -1 : 0;
#endif
}
static int
wpa_driver_bsd_get_ssid(void *priv, u8 *ssid)
{
struct bsd_driver_data *drv = priv;
return bsd_get_ssid(drv, ssid, 0);
}
static int
wpa_driver_bsd_set_wpa_ie(struct bsd_driver_data *drv, const u8 *wpa_ie,
size_t wpa_ie_len)
{
#ifdef IEEE80211_IOC_APPIE
return bsd_set_opt_ie(drv, wpa_ie, wpa_ie_len);
#else /* IEEE80211_IOC_APPIE */
return set80211var(drv, IEEE80211_IOC_OPTIE, wpa_ie, wpa_ie_len);
#endif /* IEEE80211_IOC_APPIE */
}
static int
wpa_driver_bsd_set_wpa_internal(void *priv, int wpa, int privacy)
{
int ret = 0;
wpa_printf(MSG_DEBUG, "%s: wpa=%d privacy=%d",
__FUNCTION__, wpa, privacy);
if (!wpa && wpa_driver_bsd_set_wpa_ie(priv, NULL, 0) < 0)
ret = -1;
if (set80211param(priv, IEEE80211_IOC_PRIVACY, privacy) < 0)
ret = -1;
if (set80211param(priv, IEEE80211_IOC_WPA, wpa) < 0)
ret = -1;
return ret;
}
static int
wpa_driver_bsd_set_wpa(void *priv, int enabled)
{
wpa_printf(MSG_DEBUG, "%s: enabled=%d", __FUNCTION__, enabled);
return wpa_driver_bsd_set_wpa_internal(priv, enabled ? 3 : 0, enabled);
}
static int
wpa_driver_bsd_set_countermeasures(void *priv, int enabled)
{
wpa_printf(MSG_DEBUG, "%s: enabled=%d", __func__, enabled);
return set80211param(priv, IEEE80211_IOC_COUNTERMEASURES, enabled);
}
static int
wpa_driver_bsd_set_drop_unencrypted(void *priv, int enabled)
{
wpa_printf(MSG_DEBUG, "%s: enabled=%d", __func__, enabled);
return set80211param(priv, IEEE80211_IOC_DROPUNENCRYPTED, enabled);
}
static int
wpa_driver_bsd_deauthenticate(void *priv, const u8 *addr, int reason_code)
{
return bsd_send_mlme_param(priv, IEEE80211_MLME_DEAUTH, reason_code,
addr);
}
static int
wpa_driver_bsd_set_auth_alg(void *priv, int auth_alg)
{
int authmode;
if ((auth_alg & WPA_AUTH_ALG_OPEN) &&
(auth_alg & WPA_AUTH_ALG_SHARED))
authmode = IEEE80211_AUTH_AUTO;
else if (auth_alg & WPA_AUTH_ALG_SHARED)
authmode = IEEE80211_AUTH_SHARED;
else
authmode = IEEE80211_AUTH_OPEN;
return set80211param(priv, IEEE80211_IOC_AUTHMODE, authmode);
}
static void
handle_read(void *ctx, const u8 *src_addr, const u8 *buf, size_t len)
{
struct bsd_driver_data *drv = ctx;
drv_event_eapol_rx(drv->ctx, src_addr, buf, len);
}
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 == WPA_CIPHER_NONE &&
params->group_suite == WPA_CIPHER_NONE &&
params->key_mgmt_suite == WPA_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;
}
static int
wpa_driver_bsd_scan(void *priv, struct wpa_driver_scan_params *params)
{
struct bsd_driver_data *drv = priv;
#ifdef IEEE80211_IOC_SCAN_MAX_SSID
struct ieee80211_scan_req sr;
int i;
#endif /* IEEE80211_IOC_SCAN_MAX_SSID */
if (bsd_set_mediaopt(drv, IFM_OMASK, 0 /* STA */) < 0) {
wpa_printf(MSG_ERROR, "%s: failed to set operation mode",
__func__);
return -1;
}
if (set80211param(drv, IEEE80211_IOC_ROAMING,
IEEE80211_ROAMING_MANUAL) < 0) {
wpa_printf(MSG_ERROR, "%s: failed to set "
"wpa_supplicant-based roaming: %s", __func__,
strerror(errno));
return -1;
}
if (wpa_driver_bsd_set_wpa(drv, 1) < 0) {
wpa_printf(MSG_ERROR, "%s: failed to set wpa: %s", __func__,
strerror(errno));
return -1;
}
/* NB: interface must be marked UP to do a scan */
if (bsd_ctrl_iface(drv, 1) < 0)
return -1;
#ifdef IEEE80211_IOC_SCAN_MAX_SSID
os_memset(&sr, 0, sizeof(sr));
sr.sr_flags = IEEE80211_IOC_SCAN_ACTIVE | IEEE80211_IOC_SCAN_ONCE |
IEEE80211_IOC_SCAN_NOJOIN;
sr.sr_duration = IEEE80211_IOC_SCAN_FOREVER;
if (params->num_ssids > 0) {
sr.sr_nssid = params->num_ssids;
#if 0
/* Boundary check is done by upper layer */
if (sr.sr_nssid > IEEE80211_IOC_SCAN_MAX_SSID)
sr.sr_nssid = IEEE80211_IOC_SCAN_MAX_SSID;
#endif
/* NB: check scan cache first */
sr.sr_flags |= IEEE80211_IOC_SCAN_CHECK;
}
for (i = 0; i < sr.sr_nssid; i++) {
sr.sr_ssid[i].len = params->ssids[i].ssid_len;
os_memcpy(sr.sr_ssid[i].ssid, params->ssids[i].ssid,
sr.sr_ssid[i].len);
}
/* NB: net80211 delivers a scan complete event so no need to poll */
return set80211var(drv, IEEE80211_IOC_SCAN_REQ, &sr, sizeof(sr));
#else /* IEEE80211_IOC_SCAN_MAX_SSID */
/* set desired ssid before scan */
if (bsd_set_ssid(drv, params->ssids[0].ssid,
params->ssids[0].ssid_len) < 0)
return -1;
/* NB: net80211 delivers a scan complete event so no need to poll */
return set80211param(drv, IEEE80211_IOC_SCAN_REQ, 0);
#endif /* IEEE80211_IOC_SCAN_MAX_SSID */
}
static void
wpa_driver_bsd_event_receive(int sock, void *ctx, void *sock_ctx)
{
struct bsd_driver_data *drv = sock_ctx;
struct if_announcemsghdr *ifan;
struct if_msghdr *ifm;
struct rt_msghdr *rtm;
union wpa_event_data event;
struct ieee80211_michael_event *mic;
struct ieee80211_leave_event *leave;
struct ieee80211_join_event *join;
int n;
n = read(sock, drv->event_buf, drv->event_buf_len);
if (n < 0) {
if (errno != EINTR && errno != EAGAIN)
wpa_printf(MSG_ERROR, "%s read() failed: %s",
__func__, strerror(errno));
return;
}
rtm = (struct rt_msghdr *) drv->event_buf;
if (rtm->rtm_version != RTM_VERSION) {
wpa_printf(MSG_DEBUG, "Invalid routing message version=%d",
rtm->rtm_version);
return;
}
os_memset(&event, 0, sizeof(event));
switch (rtm->rtm_type) {
case RTM_IFANNOUNCE:
ifan = (struct if_announcemsghdr *) rtm;
if (ifan->ifan_index != drv->ifindex)
break;
os_strlcpy(event.interface_status.ifname, drv->ifname,
sizeof(event.interface_status.ifname));
switch (ifan->ifan_what) {
case IFAN_DEPARTURE:
event.interface_status.ievent = EVENT_INTERFACE_REMOVED;
default:
return;
}
wpa_printf(MSG_DEBUG, "RTM_IFANNOUNCE: Interface '%s' %s",
event.interface_status.ifname,
ifan->ifan_what == IFAN_DEPARTURE ?
"removed" : "added");
wpa_supplicant_event(ctx, EVENT_INTERFACE_STATUS, &event);
break;
case RTM_IEEE80211:
ifan = (struct if_announcemsghdr *) rtm;
if (ifan->ifan_index != drv->ifindex)
break;
switch (ifan->ifan_what) {
case RTM_IEEE80211_ASSOC:
case RTM_IEEE80211_REASSOC:
if (drv->is_ap)
break;
wpa_supplicant_event(ctx, EVENT_ASSOC, NULL);
break;
case RTM_IEEE80211_DISASSOC:
if (drv->is_ap)
break;
wpa_supplicant_event(ctx, EVENT_DISASSOC, NULL);
break;
case RTM_IEEE80211_SCAN:
if (drv->is_ap)
break;
wpa_supplicant_event(ctx, EVENT_SCAN_RESULTS, NULL);
break;
case RTM_IEEE80211_LEAVE:
leave = (struct ieee80211_leave_event *) &ifan[1];
drv_event_disassoc(ctx, leave->iev_addr);
break;
case RTM_IEEE80211_JOIN:
#ifdef RTM_IEEE80211_REJOIN
case RTM_IEEE80211_REJOIN:
#endif
join = (struct ieee80211_join_event *) &ifan[1];
bsd_new_sta(drv, ctx, join->iev_addr);
break;
case RTM_IEEE80211_REPLAY:
/* ignore */
break;
case RTM_IEEE80211_MICHAEL:
mic = (struct ieee80211_michael_event *) &ifan[1];
wpa_printf(MSG_DEBUG,
"Michael MIC failure wireless event: "
"keyix=%u src_addr=" MACSTR, mic->iev_keyix,
MAC2STR(mic->iev_src));
os_memset(&event, 0, sizeof(event));
event.michael_mic_failure.unicast =
!IEEE80211_IS_MULTICAST(mic->iev_dst);
wpa_supplicant_event(ctx, EVENT_MICHAEL_MIC_FAILURE,
&event);
break;
}
break;
case RTM_IFINFO:
ifm = (struct if_msghdr *) rtm;
if (ifm->ifm_index != drv->ifindex)
break;
if ((rtm->rtm_flags & RTF_UP) == 0) {
os_strlcpy(event.interface_status.ifname, drv->ifname,
sizeof(event.interface_status.ifname));
event.interface_status.ievent = EVENT_INTERFACE_REMOVED;
wpa_printf(MSG_DEBUG, "RTM_IFINFO: Interface '%s' DOWN",
event.interface_status.ifname);
wpa_supplicant_event(ctx, EVENT_INTERFACE_STATUS, &event);
}
break;
}
}
static void
wpa_driver_bsd_add_scan_entry(struct wpa_scan_results *res,
struct ieee80211req_scan_result *sr)
{
struct wpa_scan_res *result, **tmp;
size_t extra_len;
u8 *pos;
extra_len = 2 + sr->isr_ssid_len;
extra_len += 2 + sr->isr_nrates;
extra_len += 3; /* ERP IE */
extra_len += sr->isr_ie_len;
result = os_zalloc(sizeof(*result) + extra_len);
if (result == NULL)
return;
os_memcpy(result->bssid, sr->isr_bssid, ETH_ALEN);
result->freq = sr->isr_freq;
result->beacon_int = sr->isr_intval;
result->caps = sr->isr_capinfo;
result->qual = sr->isr_rssi;
result->noise = sr->isr_noise;
/*
* the rssi value reported by the kernel is in 0.5dB steps relative to
* the reported noise floor. see ieee80211_node.h for details.
*/
result->level = sr->isr_rssi / 2 + sr->isr_noise;
pos = (u8 *)(result + 1);
*pos++ = WLAN_EID_SSID;
*pos++ = sr->isr_ssid_len;
os_memcpy(pos, sr + 1, sr->isr_ssid_len);
pos += sr->isr_ssid_len;
/*
* Deal all rates as supported rate.
* Because net80211 doesn't report extended supported rate or not.
*/
*pos++ = WLAN_EID_SUPP_RATES;
*pos++ = sr->isr_nrates;
os_memcpy(pos, sr->isr_rates, sr->isr_nrates);
pos += sr->isr_nrates;
*pos++ = WLAN_EID_ERP_INFO;
*pos++ = 1;
*pos++ = sr->isr_erp;
#if defined(__DragonFly__) || defined(__FreeBSD__) || defined(__FreeBSD_kernel__)
os_memcpy(pos, (u8 *)(sr + 1) + sr->isr_ssid_len + sr->isr_meshid_len,
sr->isr_ie_len);
#else
os_memcpy(pos, (u8 *)(sr + 1) + sr->isr_ssid_len, sr->isr_ie_len);
#endif
pos += sr->isr_ie_len;
result->ie_len = pos - (u8 *)(result + 1);
tmp = os_realloc_array(res->res, res->num + 1,
sizeof(struct wpa_scan_res *));
if (tmp == NULL) {
os_free(result);
return;
}
tmp[res->num++] = result;
res->res = tmp;
}
struct wpa_scan_results *
wpa_driver_bsd_get_scan_results2(void *priv)
{
struct ieee80211req_scan_result *sr;
struct wpa_scan_results *res;
int len, rest;
uint8_t buf[24*1024], *pos;
len = get80211var(priv, IEEE80211_IOC_SCAN_RESULTS, buf, 24*1024);
if (len < 0)
return NULL;
res = os_zalloc(sizeof(*res));
if (res == NULL)
return NULL;
pos = buf;
rest = len;
while (rest >= sizeof(struct ieee80211req_scan_result)) {
sr = (struct ieee80211req_scan_result *)pos;
wpa_driver_bsd_add_scan_entry(res, sr);
pos += sr->isr_len;
rest -= sr->isr_len;
}
wpa_printf(MSG_DEBUG, "Received %d bytes of scan results (%lu BSSes)",
len, (unsigned long)res->num);
return res;
}
static int wpa_driver_bsd_capa(struct bsd_driver_data *drv)
{
#ifdef IEEE80211_IOC_DEVCAPS
/* kernel definitions copied from net80211/ieee80211_var.h */
#define IEEE80211_CIPHER_WEP 0
#define IEEE80211_CIPHER_TKIP 1
#define IEEE80211_CIPHER_AES_CCM 3
#define IEEE80211_CRYPTO_WEP (1<<IEEE80211_CIPHER_WEP)
#define IEEE80211_CRYPTO_TKIP (1<<IEEE80211_CIPHER_TKIP)
#define IEEE80211_CRYPTO_AES_CCM (1<<IEEE80211_CIPHER_AES_CCM)
#define IEEE80211_C_HOSTAP 0x00000400 /* CAPABILITY: HOSTAP avail */
#define IEEE80211_C_WPA1 0x00800000 /* CAPABILITY: WPA1 avail */
#define IEEE80211_C_WPA2 0x01000000 /* CAPABILITY: WPA2 avail */
struct ieee80211_devcaps_req devcaps;
if (get80211var(drv, IEEE80211_IOC_DEVCAPS, &devcaps,
sizeof(devcaps)) < 0) {
wpa_printf(MSG_ERROR, "failed to IEEE80211_IOC_DEVCAPS: %s",
strerror(errno));
return -1;
}
wpa_printf(MSG_DEBUG, "%s: drivercaps=0x%08x,cryptocaps=0x%08x",
__func__, devcaps.dc_drivercaps, devcaps.dc_cryptocaps);
if (devcaps.dc_drivercaps & IEEE80211_C_WPA1)
drv->capa.key_mgmt = WPA_DRIVER_CAPA_KEY_MGMT_WPA |
WPA_DRIVER_CAPA_KEY_MGMT_WPA_PSK;
if (devcaps.dc_drivercaps & IEEE80211_C_WPA2)
drv->capa.key_mgmt = WPA_DRIVER_CAPA_KEY_MGMT_WPA2 |
WPA_DRIVER_CAPA_KEY_MGMT_WPA2_PSK;
if (devcaps.dc_cryptocaps & IEEE80211_CRYPTO_WEP)
drv->capa.enc |= WPA_DRIVER_CAPA_ENC_WEP40 |
WPA_DRIVER_CAPA_ENC_WEP104;
if (devcaps.dc_cryptocaps & IEEE80211_CRYPTO_TKIP)
drv->capa.enc |= WPA_DRIVER_CAPA_ENC_TKIP;
if (devcaps.dc_cryptocaps & IEEE80211_CRYPTO_AES_CCM)
drv->capa.enc |= WPA_DRIVER_CAPA_ENC_CCMP;
if (devcaps.dc_drivercaps & IEEE80211_C_HOSTAP)
drv->capa.flags |= WPA_DRIVER_FLAGS_AP;
#undef IEEE80211_CIPHER_WEP
#undef IEEE80211_CIPHER_TKIP
#undef IEEE80211_CIPHER_AES_CCM
#undef IEEE80211_CRYPTO_WEP
#undef IEEE80211_CRYPTO_TKIP
#undef IEEE80211_CRYPTO_AES_CCM
#undef IEEE80211_C_HOSTAP
#undef IEEE80211_C_WPA1
#undef IEEE80211_C_WPA2
#else /* IEEE80211_IOC_DEVCAPS */
/* For now, assume TKIP, CCMP, WPA, WPA2 are supported */
drv->capa.key_mgmt = WPA_DRIVER_CAPA_KEY_MGMT_WPA |
WPA_DRIVER_CAPA_KEY_MGMT_WPA_PSK |
WPA_DRIVER_CAPA_KEY_MGMT_WPA2 |
WPA_DRIVER_CAPA_KEY_MGMT_WPA2_PSK;
drv->capa.enc = WPA_DRIVER_CAPA_ENC_WEP40 |
WPA_DRIVER_CAPA_ENC_WEP104 |
WPA_DRIVER_CAPA_ENC_TKIP |
WPA_DRIVER_CAPA_ENC_CCMP;
drv->capa.flags |= WPA_DRIVER_FLAGS_AP;
#endif /* IEEE80211_IOC_DEVCAPS */
#ifdef IEEE80211_IOC_SCAN_MAX_SSID
drv->capa.max_scan_ssids = IEEE80211_IOC_SCAN_MAX_SSID;
#else /* IEEE80211_IOC_SCAN_MAX_SSID */
drv->capa.max_scan_ssids = 1;
#endif /* IEEE80211_IOC_SCAN_MAX_SSID */
drv->capa.auth = WPA_DRIVER_AUTH_OPEN |
WPA_DRIVER_AUTH_SHARED |
WPA_DRIVER_AUTH_LEAP;
return 0;
}
static enum ieee80211_opmode
get80211opmode(struct bsd_driver_data *drv)
{
struct ifmediareq ifmr;
(void) memset(&ifmr, 0, sizeof(ifmr));
(void) os_strlcpy(ifmr.ifm_name, drv->ifname, sizeof(ifmr.ifm_name));
if (ioctl(drv->sock, SIOCGIFMEDIA, (caddr_t)&ifmr) >= 0) {
if (ifmr.ifm_current & IFM_IEEE80211_ADHOC) {
if (ifmr.ifm_current & IFM_FLAG0)
return IEEE80211_M_AHDEMO;
else
return IEEE80211_M_IBSS;
}
if (ifmr.ifm_current & IFM_IEEE80211_HOSTAP)
return IEEE80211_M_HOSTAP;
if (ifmr.ifm_current & IFM_IEEE80211_MONITOR)
return IEEE80211_M_MONITOR;
#ifdef IEEE80211_M_MBSS
if (ifmr.ifm_current & IFM_IEEE80211_MBSS)
return IEEE80211_M_MBSS;
#endif /* IEEE80211_M_MBSS */
}
return IEEE80211_M_STA;
}
static void *
wpa_driver_bsd_init(void *ctx, const char *ifname)
{
#define GETPARAM(drv, param, v) \
(((v) = get80211param(drv, param)) != -1)
struct bsd_driver_data *drv;
drv = os_zalloc(sizeof(*drv));
if (drv == NULL)
return NULL;
drv->event_buf_len = rtbuf_len();
drv->event_buf = os_malloc(drv->event_buf_len);
if (drv->event_buf == NULL) {
wpa_printf(MSG_ERROR, "%s: os_malloc() failed", __func__);
goto fail1;
}
/*
* 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.
*/
drv->ifindex = if_nametoindex(ifname);
if (drv->ifindex == 0) {
wpa_printf(MSG_DEBUG, "%s: interface %s does not exist",
__func__, ifname);
goto fail1;
}
drv->sock = socket(PF_INET, SOCK_DGRAM, 0);
if (drv->sock < 0)
goto fail1;
os_strlcpy(drv->ifname, ifname, sizeof(drv->ifname));
/* Down interface during setup. */
if (bsd_ctrl_iface(drv, 0) < 0)
goto fail;
drv->route = socket(PF_ROUTE, SOCK_RAW, 0);
if (drv->route < 0)
goto fail;
eloop_register_read_sock(drv->route,
wpa_driver_bsd_event_receive, ctx, drv);
drv->ctx = ctx;
if (!GETPARAM(drv, IEEE80211_IOC_ROAMING, drv->prev_roaming)) {
wpa_printf(MSG_DEBUG, "%s: failed to get roaming state: %s",
__func__, strerror(errno));
goto fail;
}
if (!GETPARAM(drv, IEEE80211_IOC_PRIVACY, drv->prev_privacy)) {
wpa_printf(MSG_DEBUG, "%s: failed to get privacy state: %s",
__func__, strerror(errno));
goto fail;
}
if (!GETPARAM(drv, IEEE80211_IOC_WPA, drv->prev_wpa)) {
wpa_printf(MSG_DEBUG, "%s: failed to get wpa state: %s",
__func__, strerror(errno));
goto fail;
}
if (wpa_driver_bsd_capa(drv))
goto fail;
drv->opmode = get80211opmode(drv);
return drv;
fail:
close(drv->sock);
fail1:
os_free(drv->event_buf);
os_free(drv);
return NULL;
#undef GETPARAM
}
static void
wpa_driver_bsd_deinit(void *priv)
{
struct bsd_driver_data *drv = priv;
wpa_driver_bsd_set_wpa(drv, 0);
eloop_unregister_read_sock(drv->route);
/* NB: mark interface down */
bsd_ctrl_iface(drv, 0);
wpa_driver_bsd_set_wpa_internal(drv, drv->prev_wpa, drv->prev_privacy);
if (set80211param(drv, IEEE80211_IOC_ROAMING, drv->prev_roaming) < 0)
wpa_printf(MSG_DEBUG, "%s: failed to restore roaming state",
__func__);
if (drv->sock_xmit != NULL)
l2_packet_deinit(drv->sock_xmit);
(void) close(drv->route); /* ioctl socket */
(void) close(drv->sock); /* event socket */
os_free(drv->event_buf);
os_free(drv);
}
static int
wpa_driver_bsd_get_capa(void *priv, struct wpa_driver_capa *capa)
{
struct bsd_driver_data *drv = priv;
os_memcpy(capa, &drv->capa, sizeof(*capa));
return 0;
}
#endif /* HOSTAPD */
const struct wpa_driver_ops wpa_driver_bsd_ops = {
.name = "bsd",
.desc = "BSD 802.11 support",
#ifdef HOSTAPD
.hapd_init = bsd_init,
.hapd_deinit = bsd_deinit,
.set_privacy = bsd_set_privacy,
.get_seqnum = bsd_get_seqnum,
.flush = bsd_flush,
.read_sta_data = bsd_read_sta_driver_data,
.sta_disassoc = bsd_sta_disassoc,
.sta_deauth = bsd_sta_deauth,
.sta_set_flags = bsd_set_sta_authorized,
.commit = bsd_commit,
#else /* HOSTAPD */
.init = wpa_driver_bsd_init,
.deinit = wpa_driver_bsd_deinit,
.get_bssid = wpa_driver_bsd_get_bssid,
.get_ssid = wpa_driver_bsd_get_ssid,
.set_countermeasures = wpa_driver_bsd_set_countermeasures,
.scan2 = wpa_driver_bsd_scan,
.get_scan_results2 = wpa_driver_bsd_get_scan_results2,
.deauthenticate = wpa_driver_bsd_deauthenticate,
.associate = wpa_driver_bsd_associate,
.get_capa = wpa_driver_bsd_get_capa,
#endif /* HOSTAPD */
.set_freq = bsd_set_freq,
.set_key = bsd_set_key,
.set_ieee8021x = bsd_set_ieee8021x,
.hapd_set_ssid = bsd_set_ssid,
.hapd_get_ssid = bsd_get_ssid,
.hapd_send_eapol = bsd_send_eapol,
.set_generic_elem = bsd_set_opt_ie,
};