#include <netlink/genl/ctrl.h>
#include <netlink/msg.h>
#include <netlink/attr.h>
-#include <linux/nl80211.h>
+#include "nl80211_copy.h"
#include <net/if.h>
-#include <linux/if_packet.h>
-#include <linux/if_ether.h> /* The L2 protocols */
-#include <linux/wireless.h>
+#include <netpacket/packet.h>
+#include "wireless_copy.h"
+#include <linux/filter.h>
#include <net/if_arp.h>
#include "hostapd.h"
+#include "config.h"
#include "driver.h"
-#include "ieee802_1x.h"
#include "eloop.h"
-#include "ieee802_11.h"
-#include "sta_info.h"
#include "hw_features.h"
#include "mlme.h"
#include "radiotap.h"
#include "radiotap_iter.h"
+#include "ieee802_11_defs.h"
+#include "ieee802_11_common.h"
+
+#ifdef CONFIG_LIBNL20
+/* libnl 2.0 compatibility code */
+#define nl_handle_alloc_cb nl_socket_alloc_cb
+#define nl_handle_destroy nl_socket_free
+#endif /* CONFIG_LIBNL20 */
+
+static const u8 rfc1042_header[6] = { 0xaa, 0xaa, 0x03, 0x00, 0x00, 0x00 };
enum ieee80211_msg_type {
ieee80211_msg_normal = 0,
ieee80211_msg_tx_callback_fail = 2,
};
+struct i802_bss {
+ struct i802_bss *next;
+ char iface[IFNAMSIZ + 1];
+ unsigned int beacon_set:1;
+};
+
struct i802_driver_data {
struct hostapd_data *hapd;
int we_version;
struct nl_handle *nl_handle;
struct nl_cache *nl_cache;
+ struct nl_cb *nl_cb;
struct genl_family *nl80211;
- int dtim_period;
- unsigned int beacon_set:1;
- unsigned int ieee802_1x_active:1;
+ int beacon_int;
+ struct i802_bss bss;
+ unsigned int ht_40mhz_scan:1;
+
+ int last_freq;
+ int last_freq_ht;
+ struct hostapd_neighbor_bss *neighbors;
+ size_t num_neighbors;
};
+static int i802_sta_deauth(void *priv, const u8 *addr, int reason);
+static int i802_sta_disassoc(void *priv, const u8 *addr, int reason);
+
+
+static struct i802_bss * get_bss(struct i802_driver_data *drv,
+ const char *iface)
+{
+ struct i802_bss *bss = &drv->bss;
+ while (bss) {
+ if (os_strncmp(iface, bss->iface, IFNAMSIZ) == 0)
+ return bss;
+ bss = bss->next;
+ }
+ wpa_printf(MSG_DEBUG, "nl80211: get_bss(%s) failed", iface);
+ return NULL;
+}
+
+
static void add_ifidx(struct i802_driver_data *drv, int ifidx)
{
int i;
int *old;
+ wpa_printf(MSG_DEBUG, "nl80211: Add own interface ifindex %d",
+ ifidx);
for (i = 0; i < drv->num_if_indices; i++) {
if (drv->if_indices[i] == 0) {
drv->if_indices[i] = ifidx;
}
-/* helper for netlink get routines */
-static int ack_wait_handler(struct nl_msg *msg, void *arg)
+/* nl80211 code */
+static int ack_handler(struct nl_msg *msg, void *arg)
{
- int *finished = arg;
-
- *finished = 1;
+ int *err = arg;
+ *err = 0;
return NL_STOP;
}
+static int finish_handler(struct nl_msg *msg, void *arg)
+{
+ int *ret = arg;
+ *ret = 0;
+ return NL_SKIP;
+}
+
+static int error_handler(struct sockaddr_nl *nla, struct nlmsgerr *err,
+ void *arg)
+{
+ int *ret = arg;
+ *ret = err->error;
+ return NL_SKIP;
+}
+
+static int send_and_recv_msgs(struct i802_driver_data *drv,
+ struct nl_msg *msg,
+ int (*valid_handler)(struct nl_msg *, void *),
+ void *valid_data)
+{
+ struct nl_cb *cb;
+ int err = -ENOMEM;
+
+ cb = nl_cb_clone(drv->nl_cb);
+ if (!cb)
+ goto out;
+
+ err = nl_send_auto_complete(drv->nl_handle, msg);
+ if (err < 0)
+ goto out;
+
+ err = 1;
+
+ nl_cb_err(cb, NL_CB_CUSTOM, error_handler, &err);
+ nl_cb_set(cb, NL_CB_FINISH, NL_CB_CUSTOM, finish_handler, &err);
+ nl_cb_set(cb, NL_CB_ACK, NL_CB_CUSTOM, ack_handler, &err);
+
+ if (valid_handler)
+ nl_cb_set(cb, NL_CB_VALID, NL_CB_CUSTOM,
+ valid_handler, valid_data);
+
+ while (err > 0)
+ nl_recvmsgs(drv->nl_handle, cb);
+ out:
+ nl_cb_put(cb);
+ nlmsg_free(msg);
+ return err;
+}
static int hostapd_set_iface_flags(struct i802_driver_data *drv,
const char *ifname, int dev_up)
}
-static int i802_set_encryption(const char *iface, void *priv, const char *alg,
- const u8 *addr, int idx, const u8 *key,
- size_t key_len, int txkey)
+static int nl_set_encr(int ifindex, struct i802_driver_data *drv,
+ wpa_alg alg, const u8 *addr, int idx, const u8 *key,
+ size_t key_len, int txkey)
{
- struct i802_driver_data *drv = priv;
struct nl_msg *msg;
- int ret = -1;
- int err = 0;
+ int ret;
msg = nlmsg_alloc();
if (!msg)
- goto out;
+ return -ENOMEM;
- if (strcmp(alg, "none") == 0) {
+ if (alg == WPA_ALG_NONE) {
genlmsg_put(msg, 0, 0, genl_family_get_id(drv->nl80211), 0,
0, NL80211_CMD_DEL_KEY, 0);
} else {
genlmsg_put(msg, 0, 0, genl_family_get_id(drv->nl80211), 0,
0, NL80211_CMD_NEW_KEY, 0);
NLA_PUT(msg, NL80211_ATTR_KEY_DATA, key_len, key);
- if (strcmp(alg, "WEP") == 0) {
+ switch (alg) {
+ case WPA_ALG_WEP:
if (key_len == 5)
NLA_PUT_U32(msg, NL80211_ATTR_KEY_CIPHER,
0x000FAC01);
else
NLA_PUT_U32(msg, NL80211_ATTR_KEY_CIPHER,
0x000FAC05);
- } else if (strcmp(alg, "TKIP") == 0)
+ break;
+ case WPA_ALG_TKIP:
NLA_PUT_U32(msg, NL80211_ATTR_KEY_CIPHER, 0x000FAC02);
- else if (strcmp(alg, "CCMP") == 0)
+ break;
+ case WPA_ALG_CCMP:
NLA_PUT_U32(msg, NL80211_ATTR_KEY_CIPHER, 0x000FAC04);
- else
- goto out;
+ break;
+ case WPA_ALG_IGTK:
+ NLA_PUT_U32(msg, NL80211_ATTR_KEY_CIPHER, 0x000FAC06);
+ break;
+ default:
+ wpa_printf(MSG_ERROR, "%s: Unsupported encryption "
+ "algorithm %d", __func__, alg);
+ nlmsg_free(msg);
+ return -1;
+ }
}
if (addr)
NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, addr);
NLA_PUT_U8(msg, NL80211_ATTR_KEY_IDX, idx);
- NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, if_nametoindex(iface));
+ NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, ifindex);
- if (nl_send_auto_complete(drv->nl_handle, msg) < 0 ||
- (err = nl_wait_for_ack(drv->nl_handle)) < 0) {
- if (err != -ENOENT) {
- err = 0;
- goto out;
- }
- }
+ ret = send_and_recv_msgs(drv, msg, NULL, NULL);
+ if (ret == -ENOENT)
+ ret = 0;
/*
- * If we need to set the default TX key we do that below,
- * otherwise we're done here.
+ * If we failed or don't need to set the default TX key (below),
+ * we're done here.
*/
- if (!txkey || addr) {
- ret = 0;
- goto out;
- }
-
- nlmsg_free(msg);
+ if (ret || !txkey || addr)
+ return ret;
msg = nlmsg_alloc();
if (!msg)
- goto out;
+ return -ENOMEM;
genlmsg_put(msg, 0, 0, genl_family_get_id(drv->nl80211), 0,
0, NL80211_CMD_SET_KEY, 0);
NLA_PUT_U8(msg, NL80211_ATTR_KEY_IDX, idx);
- NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, if_nametoindex(iface));
- NLA_PUT_FLAG(msg, NL80211_ATTR_KEY_DEFAULT);
+ NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, ifindex);
+ if (alg == WPA_ALG_IGTK)
+ NLA_PUT_FLAG(msg, NL80211_ATTR_KEY_DEFAULT_MGMT);
+ else
+ NLA_PUT_FLAG(msg, NL80211_ATTR_KEY_DEFAULT);
- if (nl_send_auto_complete(drv->nl_handle, msg) < 0 ||
- (err = nl_wait_for_ack(drv->nl_handle)) < 0) {
- if (err != -ENOENT) {
- err = 0;
- goto out;
- }
- }
+ ret = send_and_recv_msgs(drv, msg, NULL, NULL);
+ if (ret == -ENOENT)
+ ret = 0;
+ return ret;
+ nla_put_failure:
+ return -ENOBUFS;
+}
- ret = 0;
- out:
- nla_put_failure:
- nlmsg_free(msg);
+static int i802_set_key(const char *iface, void *priv, wpa_alg alg,
+ const u8 *addr, int key_idx, int set_tx, const u8 *seq,
+ size_t seq_len, const u8 *key, size_t key_len)
+{
+ struct i802_driver_data *drv = priv;
+ int ret;
+
+ ret = nl_set_encr(if_nametoindex(iface), drv, alg, addr, key_idx, key,
+ key_len, set_tx);
+ if (ret < 0)
+ return ret;
+
return ret;
}
static int get_key_handler(struct nl_msg *msg, void *arg)
{
- struct nlattr *tb[NL80211_ATTR_MAX];
+ struct nlattr *tb[NL80211_ATTR_MAX + 1];
struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg));
nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0),
{
struct i802_driver_data *drv = priv;
struct nl_msg *msg;
- struct nl_cb *cb = NULL;
- int ret = -1;
- int err = 0;
- int finished = 0;
msg = nlmsg_alloc();
if (!msg)
- goto out;
+ return -ENOMEM;
genlmsg_put(msg, 0, 0, genl_family_get_id(drv->nl80211), 0,
0, NL80211_CMD_GET_KEY, 0);
NLA_PUT_U8(msg, NL80211_ATTR_KEY_IDX, idx);
NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, if_nametoindex(iface));
- cb = nl_cb_alloc(NL_CB_CUSTOM);
- if (!cb)
- goto out;
-
memset(seq, 0, 6);
- if (nl_send_auto_complete(drv->nl_handle, msg) < 0)
- goto out;
-
- nl_cb_set(cb, NL_CB_VALID, NL_CB_CUSTOM, get_key_handler, seq);
- nl_cb_set(cb, NL_CB_ACK, NL_CB_CUSTOM, ack_wait_handler, &finished);
-
- err = nl_recvmsgs(drv->nl_handle, cb);
-
- if (!finished)
- err = nl_wait_for_ack(drv->nl_handle);
-
- if (err < 0)
- goto out;
-
- ret = 0;
-
- out:
- nl_cb_put(cb);
+ return send_and_recv_msgs(drv, msg, get_key_handler, seq);
nla_put_failure:
- nlmsg_free(msg);
- return ret;
+ return -ENOBUFS;
}
static int i802_set_rate_sets(void *priv, int *supp_rates, int *basic_rates,
int mode)
{
- return -1;
-}
+ struct i802_driver_data *drv = priv;
+ struct nl_msg *msg;
+ u8 rates[NL80211_MAX_SUPP_RATES];
+ u8 rates_len = 0;
+ int i;
+ msg = nlmsg_alloc();
+ if (!msg)
+ return -ENOMEM;
-static int i802_set_ssid(const char *ifname, void *priv, const u8 *buf,
- int len)
-{
- struct i802_driver_data *drv = priv;
- struct iwreq iwr;
+ genlmsg_put(msg, 0, 0, genl_family_get_id(drv->nl80211), 0, 0,
+ NL80211_CMD_SET_BSS, 0);
- memset(&iwr, 0, sizeof(iwr));
- os_strlcpy(iwr.ifr_name, ifname, IFNAMSIZ);
- iwr.u.essid.flags = 1; /* SSID active */
- iwr.u.essid.pointer = (caddr_t) buf;
- iwr.u.essid.length = len;
-
- if (ioctl(drv->ioctl_sock, SIOCSIWESSID, &iwr) < 0) {
- perror("ioctl[SIOCSIWESSID]");
- printf("len=%d\n", len);
- return -1;
- }
+ for (i = 0; i < NL80211_MAX_SUPP_RATES && basic_rates[i] >= 0; i++)
+ rates[rates_len++] = basic_rates[i] / 5;
- return 0;
+ NLA_PUT(msg, NL80211_ATTR_BSS_BASIC_RATES, rates_len, rates);
+
+ /* TODO: multi-BSS support */
+ NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, if_nametoindex(drv->iface));
+
+ return send_and_recv_msgs(drv, msg, NULL, NULL);
+ nla_put_failure:
+ return -ENOBUFS;
}
-static int i802_send_mgmt_frame(void *priv, const void *data, size_t len,
- int flags)
+static int i802_send_frame(void *priv, const void *data, size_t len,
+ int encrypt, int flags)
{
- struct ieee80211_hdr *hdr = (void*) data;
__u8 rtap_hdr[] = {
0x00, 0x00, /* radiotap version */
0x0e, 0x00, /* radiotap length */
0x02, 0xc0, 0x00, 0x00, /* bmap: flags, tx and rx flags */
- 0x0c, /* F_WEP | F_FRAG (encrypt/fragment if required) */
+ 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 */
.msg_flags = 0,
};
- /*
- * ugh, guess what, the generic code sets one of the version
- * bits to request tx callback
- */
- hdr->frame_control &= ~host_to_le16(BIT(1));
+ if (encrypt)
+ rtap_hdr[8] |= IEEE80211_RADIOTAP_F_WEP;
+
return sendmsg(drv->monitor_sock, &msg, flags);
}
-
-/* Set kernel driver on given frequency (MHz) */
-static int i802_set_freq(void *priv, int mode, int freq)
+static int i802_send_mgmt_frame(void *priv, const void *data, size_t len,
+ int flags)
{
- struct i802_driver_data *drv = priv;
- struct iwreq iwr;
+ struct ieee80211_mgmt *mgmt;
+ int do_not_encrypt = 0;
+ u16 fc;
- memset(&iwr, 0, sizeof(iwr));
- os_strlcpy(iwr.ifr_name, drv->hapd->conf->iface, IFNAMSIZ);
- iwr.u.freq.m = freq;
- iwr.u.freq.e = 6;
+ mgmt = (struct ieee80211_mgmt *) data;
+ fc = le_to_host16(mgmt->frame_control);
- if (ioctl(drv->ioctl_sock, SIOCSIWFREQ, &iwr) < 0) {
- perror("ioctl[SIOCSIWFREQ]");
- return -1;
+ 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 0;
+ return i802_send_frame(priv, data, len, !do_not_encrypt, flags);
}
-
-static int i802_set_rts(void *priv, int rts)
+/* Set kernel driver on given frequency (MHz) */
+static int i802_set_freq(void *priv, struct hostapd_freq_params *freq)
{
struct i802_driver_data *drv = priv;
- struct iwreq iwr;
-
- memset(&iwr, 0, sizeof(iwr));
- os_strlcpy(iwr.ifr_name, drv->hapd->conf->iface, IFNAMSIZ);
- iwr.u.rts.value = rts;
- iwr.u.rts.fixed = 1;
+ struct nl_msg *msg;
- if (ioctl(drv->ioctl_sock, SIOCSIWRTS, &iwr) < 0) {
- perror("ioctl[SIOCSIWRTS]");
+ msg = nlmsg_alloc();
+ if (!msg)
return -1;
+
+ drv->last_freq = freq->freq;
+ drv->last_freq_ht = freq->ht_enabled;
+
+ genlmsg_put(msg, 0, 0, genl_family_get_id(drv->nl80211), 0, 0,
+ NL80211_CMD_SET_WIPHY, 0);
+
+ NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, if_nametoindex(drv->iface));
+ NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_FREQ, freq->freq);
+ if (freq->ht_enabled) {
+ switch (freq->sec_channel_offset) {
+ case -1:
+ NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_CHANNEL_TYPE,
+ NL80211_CHAN_HT40MINUS);
+ break;
+ case 1:
+ NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_CHANNEL_TYPE,
+ NL80211_CHAN_HT40PLUS);
+ break;
+ default:
+ NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_CHANNEL_TYPE,
+ NL80211_CHAN_HT20);
+ break;
+ }
}
- return 0;
+ if (send_and_recv_msgs(drv, msg, NULL, NULL) == 0)
+ return 0;
+ nla_put_failure:
+ return -1;
}
-static int i802_get_rts(void *priv, int *rts)
+static int i802_set_rts(void *priv, int rts)
{
struct i802_driver_data *drv = priv;
struct iwreq iwr;
memset(&iwr, 0, sizeof(iwr));
- os_strlcpy(iwr.ifr_name, drv->hapd->conf->iface, IFNAMSIZ);
+ os_strlcpy(iwr.ifr_name, drv->iface, IFNAMSIZ);
+ iwr.u.rts.value = rts;
+ iwr.u.rts.fixed = 1;
- if (ioctl(drv->ioctl_sock, SIOCGIWRTS, &iwr) < 0) {
- perror("ioctl[SIOCGIWRTS]");
+ if (ioctl(drv->ioctl_sock, SIOCSIWRTS, &iwr) < 0) {
+ perror("ioctl[SIOCSIWRTS]");
return -1;
}
- *rts = iwr.u.rts.value;
-
return 0;
}
struct iwreq iwr;
memset(&iwr, 0, sizeof(iwr));
- os_strlcpy(iwr.ifr_name, drv->hapd->conf->iface, IFNAMSIZ);
+ os_strlcpy(iwr.ifr_name, drv->iface, IFNAMSIZ);
iwr.u.frag.value = frag;
iwr.u.frag.fixed = 1;
}
-static int i802_get_frag(void *priv, int *frag)
-{
- struct i802_driver_data *drv = priv;
- struct iwreq iwr;
-
- memset(&iwr, 0, sizeof(iwr));
- os_strlcpy(iwr.ifr_name, drv->hapd->conf->iface, IFNAMSIZ);
-
- if (ioctl(drv->ioctl_sock, SIOCGIWFRAG, &iwr) < 0) {
- perror("ioctl[SIOCGIWFRAG]");
- return -1;
- }
-
- *frag = iwr.u.frag.value;
-
- return 0;
-}
-
-
static int i802_set_retry(void *priv, int short_retry, int long_retry)
{
struct i802_driver_data *drv = priv;
struct iwreq iwr;
memset(&iwr, 0, sizeof(iwr));
- os_strlcpy(iwr.ifr_name, drv->hapd->conf->iface, IFNAMSIZ);
+ os_strlcpy(iwr.ifr_name, drv->iface, IFNAMSIZ);
iwr.u.retry.value = short_retry;
iwr.u.retry.flags = IW_RETRY_LIMIT | IW_RETRY_MIN;
- if (ioctl(drv->ioctl_sock, SIOCSIWFRAG, &iwr) < 0) {
+ if (ioctl(drv->ioctl_sock, SIOCSIWRETRY, &iwr) < 0) {
perror("ioctl[SIOCSIWRETRY(short)]");
return -1;
}
iwr.u.retry.value = long_retry;
iwr.u.retry.flags = IW_RETRY_LIMIT | IW_RETRY_MAX;
- if (ioctl(drv->ioctl_sock, SIOCSIWFRAG, &iwr) < 0) {
+ if (ioctl(drv->ioctl_sock, SIOCSIWRETRY, &iwr) < 0) {
perror("ioctl[SIOCSIWRETRY(long)]");
return -1;
}
}
-static int i802_get_retry(void *priv, int *short_retry, int *long_retry)
-{
- struct i802_driver_data *drv = priv;
- struct iwreq iwr;
-
- memset(&iwr, 0, sizeof(iwr));
- os_strlcpy(iwr.ifr_name, drv->hapd->conf->iface, IFNAMSIZ);
-
- iwr.u.retry.flags = IW_RETRY_LIMIT | IW_RETRY_MIN;
- if (ioctl(drv->ioctl_sock, SIOCGIWRETRY, &iwr) < 0) {
- perror("ioctl[SIOCGIWFRAG(short)]");
- return -1;
- }
- *short_retry = iwr.u.retry.value;
-
- iwr.u.retry.flags = IW_RETRY_LIMIT | IW_RETRY_MAX;
- if (ioctl(drv->ioctl_sock, SIOCGIWRETRY, &iwr) < 0) {
- perror("ioctl[SIOCGIWFRAG(long)]");
- return -1;
- }
- *long_retry = iwr.u.retry.value;
-
- return 0;
-}
-
-
static int i802_flush(void *priv)
{
struct i802_driver_data *drv = priv;
struct nl_msg *msg;
- int ret = -1;
msg = nlmsg_alloc();
if (!msg)
- goto out;
+ return -1;
genlmsg_put(msg, 0, 0, genl_family_get_id(drv->nl80211), 0,
- 0, NL80211_CMD_NEW_STATION, 0);
+ 0, NL80211_CMD_DEL_STATION, 0);
/*
* XXX: FIX! this needs to flush all VLANs too
NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX,
if_nametoindex(drv->iface));
- ret = 0;
-
- if (nl_send_auto_complete(drv->nl_handle, msg) < 0 ||
- nl_wait_for_ack(drv->nl_handle) < 0) {
- ret = -1;
- }
-
+ return send_and_recv_msgs(drv, msg, NULL, NULL);
nla_put_failure:
- nlmsg_free(msg);
-
- out:
- return ret;
+ return -ENOBUFS;
}
[NL80211_STA_INFO_INACTIVE_TIME] = { .type = NLA_U32 },
[NL80211_STA_INFO_RX_BYTES] = { .type = NLA_U32 },
[NL80211_STA_INFO_TX_BYTES] = { .type = NLA_U32 },
+ [NL80211_STA_INFO_RX_PACKETS] = { .type = NLA_U32 },
+ [NL80211_STA_INFO_TX_PACKETS] = { .type = NLA_U32 },
};
nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0),
if (stats[NL80211_STA_INFO_RX_BYTES])
data->rx_bytes = nla_get_u32(stats[NL80211_STA_INFO_RX_BYTES]);
if (stats[NL80211_STA_INFO_TX_BYTES])
- data->rx_bytes = nla_get_u32(stats[NL80211_STA_INFO_TX_BYTES]);
+ data->tx_bytes = nla_get_u32(stats[NL80211_STA_INFO_TX_BYTES]);
+ if (stats[NL80211_STA_INFO_RX_PACKETS])
+ data->rx_packets =
+ nla_get_u32(stats[NL80211_STA_INFO_RX_PACKETS]);
+ if (stats[NL80211_STA_INFO_TX_PACKETS])
+ data->tx_packets =
+ nla_get_u32(stats[NL80211_STA_INFO_TX_PACKETS]);
return NL_SKIP;
}
{
struct i802_driver_data *drv = priv;
struct nl_msg *msg;
- struct nl_cb *cb = NULL;
- int ret = -1;
- int err = 0;
- int finished = 0;
+ os_memset(data, 0, sizeof(*data));
msg = nlmsg_alloc();
if (!msg)
- goto out;
+ return -ENOMEM;
genlmsg_put(msg, 0, 0, genl_family_get_id(drv->nl80211), 0,
0, NL80211_CMD_GET_STATION, 0);
NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, addr);
NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, if_nametoindex(drv->iface));
- cb = nl_cb_alloc(NL_CB_CUSTOM);
- if (!cb)
- goto out;
-
- if (nl_send_auto_complete(drv->nl_handle, msg) < 0)
- goto out;
-
- nl_cb_set(cb, NL_CB_VALID, NL_CB_CUSTOM, get_sta_handler, data);
- nl_cb_set(cb, NL_CB_ACK, NL_CB_CUSTOM, ack_wait_handler, &finished);
-
- err = nl_recvmsgs(drv->nl_handle, cb);
-
- if (!finished)
- err = nl_wait_for_ack(drv->nl_handle);
-
- if (err < 0)
- goto out;
-
- ret = 0;
-
- out:
- nl_cb_put(cb);
+ return send_and_recv_msgs(drv, msg, get_sta_handler, data);
nla_put_failure:
- nlmsg_free(msg);
- return ret;
-
+ return -ENOBUFS;
}
pos += 2;
memcpy(pos, data, data_len);
- res = i802_send_mgmt_frame(drv, (u8 *) hdr, len, 0);
+ res = i802_send_frame(drv, (u8 *) hdr, len, encrypt, 0);
free(hdr);
if (res < 0) {
}
-static int i802_sta_add(const char *ifname, void *priv, const u8 *addr,
- u16 aid, u16 capability, u8 *supp_rates,
- size_t supp_rates_len, int flags, u16 listen_interval)
+static int i802_sta_add(const char *ifname, void *priv,
+ struct hostapd_sta_add_params *params)
{
struct i802_driver_data *drv = priv;
struct nl_msg *msg;
- int ret = -1;
+ int ret = -ENOBUFS;
msg = nlmsg_alloc();
if (!msg)
- goto out;
+ return -ENOMEM;
genlmsg_put(msg, 0, 0, genl_family_get_id(drv->nl80211), 0,
0, NL80211_CMD_NEW_STATION, 0);
NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX,
if_nametoindex(drv->iface));
- NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, addr);
- NLA_PUT_U16(msg, NL80211_ATTR_STA_AID, aid);
- NLA_PUT(msg, NL80211_ATTR_STA_SUPPORTED_RATES, supp_rates_len,
- supp_rates);
- NLA_PUT_U16(msg, NL80211_ATTR_STA_LISTEN_INTERVAL, listen_interval);
-
- ret = nl_send_auto_complete(drv->nl_handle, msg);
- if (ret < 0)
- goto nla_put_failure;
-
- ret = nl_wait_for_ack(drv->nl_handle);
- /* ignore EEXIST, this happens if a STA associates while associated */
- if (ret == -EEXIST || ret >= 0)
+ NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, params->addr);
+ NLA_PUT_U16(msg, NL80211_ATTR_STA_AID, params->aid);
+ NLA_PUT(msg, NL80211_ATTR_STA_SUPPORTED_RATES, params->supp_rates_len,
+ params->supp_rates);
+ NLA_PUT_U16(msg, NL80211_ATTR_STA_LISTEN_INTERVAL,
+ params->listen_interval);
+
+#ifdef CONFIG_IEEE80211N
+ if (params->ht_capabilities) {
+ NLA_PUT(msg, NL80211_ATTR_HT_CAPABILITY,
+ params->ht_capabilities->length,
+ ¶ms->ht_capabilities->data);
+ }
+#endif /* CONFIG_IEEE80211N */
+
+ ret = send_and_recv_msgs(drv, msg, NULL, NULL);
+ if (ret)
+ wpa_printf(MSG_DEBUG, "nl80211: NL80211_CMD_NEW_STATION "
+ "result: %d (%s)", ret, strerror(-ret));
+ if (ret == -EEXIST)
ret = 0;
-
nla_put_failure:
- nlmsg_free(msg);
-
- out:
return ret;
}
{
struct i802_driver_data *drv = priv;
struct nl_msg *msg;
- int ret = -1;
+ int ret;
msg = nlmsg_alloc();
if (!msg)
- goto out;
+ return -ENOMEM;
genlmsg_put(msg, 0, 0, genl_family_get_id(drv->nl80211), 0,
0, NL80211_CMD_DEL_STATION, 0);
if_nametoindex(drv->iface));
NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, addr);
- ret = 0;
-
- if (nl_send_auto_complete(drv->nl_handle, msg) < 0 ||
- nl_wait_for_ack(drv->nl_handle) < 0) {
- ret = -1;
- }
-
- nla_put_failure:
- nlmsg_free(msg);
-
- out:
+ ret = send_and_recv_msgs(drv, msg, NULL, NULL);
+ if (ret == -ENOENT)
+ return 0;
return ret;
+ nla_put_failure:
+ return -ENOBUFS;
}
{
struct i802_driver_data *drv = priv;
struct nl_msg *msg, *flags = NULL;
- int ret = -1;
msg = nlmsg_alloc();
if (!msg)
- goto out;
+ return -ENOMEM;
flags = nlmsg_alloc();
- if (!flags)
- goto free_msg;
+ if (!flags) {
+ nlmsg_free(msg);
+ return -ENOMEM;
+ }
genlmsg_put(msg, 0, 0, genl_family_get_id(drv->nl80211), 0,
0, NL80211_CMD_SET_STATION, 0);
if_nametoindex(drv->iface));
NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, addr);
- if (total_flags & WLAN_STA_AUTHORIZED || !drv->ieee802_1x_active)
+ if (total_flags & WLAN_STA_AUTHORIZED)
NLA_PUT_FLAG(flags, NL80211_STA_FLAG_AUTHORIZED);
- if (total_flags & WLAN_STA_WME)
+ if (total_flags & WLAN_STA_WMM)
NLA_PUT_FLAG(flags, NL80211_STA_FLAG_WME);
if (total_flags & WLAN_STA_SHORT_PREAMBLE)
NLA_PUT_FLAG(flags, NL80211_STA_FLAG_SHORT_PREAMBLE);
+ if (total_flags & WLAN_STA_MFP)
+ NLA_PUT_FLAG(flags, NL80211_STA_FLAG_MFP);
+
if (nla_put_nested(msg, NL80211_ATTR_STA_FLAGS, flags))
goto nla_put_failure;
- ret = 0;
-
- if (nl_send_auto_complete(drv->nl_handle, msg) < 0 ||
- nl_wait_for_ack(drv->nl_handle) < 0) {
- ret = -1;
- }
+ nlmsg_free(flags);
+ return send_and_recv_msgs(drv, msg, NULL, NULL);
nla_put_failure:
- nlmsg_free(flags);
+ nlmsg_free(flags);
+ return -ENOBUFS;
+}
- free_msg:
- nlmsg_free(msg);
- out:
- return ret;
-}
+static int i802_set_tx_queue_params(void *priv, int queue, int aifs,
+ int cw_min, int cw_max, int burst_time)
+{
+ struct i802_driver_data *drv = priv;
+ struct nl_msg *msg;
+ struct nlattr *txq, *params;
+ msg = nlmsg_alloc();
+ if (!msg)
+ return -1;
-static int i802_set_channel_flag(void *priv, int mode, int chan, int flag,
- unsigned char power_level,
- unsigned char antenna_max)
-{
- return -1;
-}
+ genlmsg_put(msg, 0, 0, genl_family_get_id(drv->nl80211), 0,
+ 0, NL80211_CMD_SET_WIPHY, 0);
+ NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, if_nametoindex(drv->iface));
-static int i802_set_regulatory_domain(void *priv, unsigned int rd)
-{
- return -1;
-}
+ txq = nla_nest_start(msg, NL80211_ATTR_WIPHY_TXQ_PARAMS);
+ if (!txq)
+ goto nla_put_failure;
+ /* We are only sending parameters for a single TXQ at a time */
+ params = nla_nest_start(msg, 1);
+ if (!params)
+ goto nla_put_failure;
-static int i802_set_tx_queue_params(void *priv, int queue, int aifs,
- int cw_min, int cw_max, int burst_time)
-{
+ NLA_PUT_U8(msg, NL80211_TXQ_ATTR_QUEUE, queue);
+ /* Burst time is configured in units of 0.1 msec and TXOP parameter in
+ * 32 usec, so need to convert the value here. */
+ NLA_PUT_U16(msg, NL80211_TXQ_ATTR_TXOP, (burst_time * 100 + 16) / 32);
+ NLA_PUT_U16(msg, NL80211_TXQ_ATTR_CWMIN, cw_min);
+ NLA_PUT_U16(msg, NL80211_TXQ_ATTR_CWMAX, cw_max);
+ NLA_PUT_U8(msg, NL80211_TXQ_ATTR_AIFS, aifs);
+
+ nla_nest_end(msg, params);
+
+ nla_nest_end(msg, txq);
+
+ if (send_and_recv_msgs(drv, msg, NULL, NULL) == 0)
+ return 0;
+ nla_put_failure:
return -1;
}
genlmsg_put(msg, 0, 0, genl_family_get_id(drv->nl80211), 0,
0, NL80211_CMD_DEL_INTERFACE, 0);
NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, ifidx);
- if (nl_send_auto_complete(drv->nl_handle, msg) < 0 ||
- nl_wait_for_ack(drv->nl_handle) < 0)
- nla_put_failure:
- printf("Failed to remove interface.\n");
- nlmsg_free(msg);
+
+ if (send_and_recv_msgs(drv, msg, NULL, NULL) == 0)
+ return;
+ nla_put_failure:
+ printf("Failed to remove interface.\n");
}
int ifidx;
struct ifreq ifreq;
struct iwreq iwr;
+ int ret = -ENOBUFS;
msg = nlmsg_alloc();
if (!msg)
genlmsg_put(msg, 0, 0, genl_family_get_id(drv->nl80211), 0,
0, NL80211_CMD_NEW_INTERFACE, 0);
- NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX,
- if_nametoindex(drv->hapd->conf->iface));
+ NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, if_nametoindex(drv->iface));
NLA_PUT_STRING(msg, NL80211_ATTR_IFNAME, ifname);
NLA_PUT_U32(msg, NL80211_ATTR_IFTYPE, iftype);
goto nla_put_failure;
}
- if (nl_send_auto_complete(drv->nl_handle, msg) < 0 ||
- nl_wait_for_ack(drv->nl_handle) < 0) {
+ ret = send_and_recv_msgs(drv, msg, NULL, NULL);
+ if (ret) {
nla_put_failure:
printf("Failed to create interface %s.\n", ifname);
- nlmsg_free(msg);
- return -1;
+ return ret;
}
- nlmsg_free(msg);
-
ifidx = if_nametoindex(ifname);
if (ifidx <= 0)
static int i802_bss_add(void *priv, const char *ifname, const u8 *bssid)
{
+ struct i802_driver_data *drv = priv;
int ifidx;
+ struct i802_bss *bss;
- /*
- * The kernel supports that when the low-level driver does,
- * but we currently don't because we need per-BSS data that
- * currently we can't handle easily.
- */
- return -1;
+ bss = os_zalloc(sizeof(*bss));
+ if (bss == NULL)
+ return -1;
+ os_strlcpy(bss->iface, ifname, IFNAMSIZ);
ifidx = nl80211_create_iface(priv, ifname, NL80211_IFTYPE_AP, bssid);
- if (ifidx < 0)
+ if (ifidx < 0) {
+ os_free(bss);
return -1;
+ }
if (hostapd_set_iface_flags(priv, ifname, 1)) {
nl80211_remove_iface(priv, ifidx);
+ os_free(bss);
return -1;
}
+ bss->next = drv->bss.next;
+ drv->bss.next = bss;
return 0;
}
static int i802_bss_remove(void *priv, const char *ifname)
{
+ struct i802_driver_data *drv = priv;
+ struct i802_bss *bss, *prev;
nl80211_remove_iface(priv, if_nametoindex(ifname));
+ prev = &drv->bss;
+ bss = drv->bss.next;
+ while (bss) {
+ if (os_strncmp(ifname, bss->iface, IFNAMSIZ) == 0) {
+ prev->next = bss->next;
+ os_free(bss);
+ break;
+ }
+ prev = bss;
+ bss = bss->next;
+ }
return 0;
}
static int i802_set_beacon(const char *iface, void *priv,
- u8 *head, size_t head_len,
- u8 *tail, size_t tail_len)
+ const u8 *head, size_t head_len,
+ const u8 *tail, size_t tail_len, int dtim_period)
{
struct i802_driver_data *drv = priv;
struct nl_msg *msg;
u8 cmd = NL80211_CMD_NEW_BEACON;
- int ret = -1;
+ int ret;
+ struct i802_bss *bss;
+
+ bss = get_bss(drv, iface);
+ if (bss == NULL)
+ return -ENOENT;
msg = nlmsg_alloc();
if (!msg)
- goto out;
+ return -ENOMEM;
- if (drv->beacon_set)
+ wpa_printf(MSG_DEBUG, "nl80211: Set beacon (iface=%s beacon_set=%d)",
+ iface, bss->beacon_set);
+ if (bss->beacon_set)
cmd = NL80211_CMD_SET_BEACON;
genlmsg_put(msg, 0, 0, genl_family_get_id(drv->nl80211), 0,
NLA_PUT(msg, NL80211_ATTR_BEACON_HEAD, head_len, head);
NLA_PUT(msg, NL80211_ATTR_BEACON_TAIL, tail_len, tail);
NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, if_nametoindex(iface));
- NLA_PUT_U32(msg, NL80211_ATTR_BEACON_INTERVAL, 1000);
-
- if (!drv->dtim_period)
- drv->dtim_period = 2;
- NLA_PUT_U32(msg, NL80211_ATTR_DTIM_PERIOD, drv->dtim_period);
-
- if (nl_send_auto_complete(drv->nl_handle, msg) < 0 ||
- nl_wait_for_ack(drv->nl_handle) < 0)
- goto out;
+ NLA_PUT_U32(msg, NL80211_ATTR_BEACON_INTERVAL, drv->beacon_int);
+ NLA_PUT_U32(msg, NL80211_ATTR_DTIM_PERIOD, dtim_period);
- ret = 0;
-
- drv->beacon_set = 1;
-
- out:
- nla_put_failure:
- nlmsg_free(msg);
+ ret = send_and_recv_msgs(drv, msg, NULL, NULL);
+ if (!ret)
+ bss->beacon_set = 1;
return ret;
+ nla_put_failure:
+ return -ENOBUFS;
}
static int i802_del_beacon(struct i802_driver_data *drv)
{
struct nl_msg *msg;
- int ret = -1;
msg = nlmsg_alloc();
if (!msg)
- goto out;
+ return -ENOMEM;
genlmsg_put(msg, 0, 0, genl_family_get_id(drv->nl80211), 0,
0, NL80211_CMD_DEL_BEACON, 0);
NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, if_nametoindex(drv->iface));
- if (nl_send_auto_complete(drv->nl_handle, msg) < 0 ||
- nl_wait_for_ack(drv->nl_handle) < 0)
- goto out;
-
- ret = 0;
-
- out:
+ return send_and_recv_msgs(drv, msg, NULL, NULL);
nla_put_failure:
- nlmsg_free(msg);
- return ret;
-}
-
-
-static int i802_set_ieee8021x(const char *ifname, void *priv, int enabled)
-{
- struct i802_driver_data *drv = priv;
-
- /*
- * FIXME: This needs to be per interface (BSS)
- */
- drv->ieee802_1x_active = enabled;
- return 0;
-}
-
-
-static int i802_set_privacy(const char *ifname, void *priv, int enabled)
-{
- struct i802_driver_data *drv = priv;
- struct iwreq iwr;
-
- memset(&iwr, 0, sizeof(iwr));
-
- os_strlcpy(iwr.ifr_name, ifname, IFNAMSIZ);
- iwr.u.param.flags = IW_AUTH_PRIVACY_INVOKED;
- iwr.u.param.value = enabled;
-
- ioctl(drv->ioctl_sock, SIOCSIWAUTH, &iwr);
-
- /* ignore errors, the kernel/driver might not care */
- return 0;
-}
-
-
-static int i802_set_internal_bridge(void *priv, int value)
-{
- return -1;
+ return -ENOBUFS;
}
{
struct i802_driver_data *drv = priv;
struct nl_msg *msg;
- int ret = -1;
+
+ drv->beacon_int = value;
+
+ if (!drv->bss.beacon_set)
+ return 0;
msg = nlmsg_alloc();
if (!msg)
- goto out;
+ return -ENOMEM;
+ wpa_printf(MSG_DEBUG, "nl80211: Set beacon interval %d "
+ "(beacon_set=%d)", value, drv->bss.beacon_set);
genlmsg_put(msg, 0, 0, genl_family_get_id(drv->nl80211), 0,
0, NL80211_CMD_SET_BEACON, 0);
NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, if_nametoindex(drv->iface));
NLA_PUT_U32(msg, NL80211_ATTR_BEACON_INTERVAL, value);
- if (nl_send_auto_complete(drv->nl_handle, msg) < 0 ||
- nl_wait_for_ack(drv->nl_handle) < 0)
- goto out;
-
- ret = 0;
-
- out:
+ return send_and_recv_msgs(drv, msg, NULL, NULL);
nla_put_failure:
- nlmsg_free(msg);
- return ret;
+ return -ENOBUFS;
}
-static int i802_set_dtim_period(const char *iface, void *priv, int value)
+static int i802_set_bss(void *priv, int cts, int preamble, int slot)
{
struct i802_driver_data *drv = priv;
struct nl_msg *msg;
- int ret = -1;
msg = nlmsg_alloc();
if (!msg)
- goto out;
+ return -ENOMEM;
- genlmsg_put(msg, 0, 0, genl_family_get_id(drv->nl80211), 0,
- 0, NL80211_CMD_SET_BEACON, 0);
- NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, if_nametoindex(iface));
+ genlmsg_put(msg, 0, 0, genl_family_get_id(drv->nl80211), 0, 0,
+ NL80211_CMD_SET_BSS, 0);
- drv->dtim_period = value;
- NLA_PUT_U32(msg, NL80211_ATTR_DTIM_PERIOD, drv->dtim_period);
+ if (cts >= 0)
+ NLA_PUT_U8(msg, NL80211_ATTR_BSS_CTS_PROT, cts);
+ if (preamble >= 0)
+ NLA_PUT_U8(msg, NL80211_ATTR_BSS_SHORT_PREAMBLE, preamble);
+ if (slot >= 0)
+ NLA_PUT_U8(msg, NL80211_ATTR_BSS_SHORT_SLOT_TIME, slot);
- if (nl_send_auto_complete(drv->nl_handle, msg) < 0 ||
- nl_wait_for_ack(drv->nl_handle) < 0)
- goto out;
-
- ret = 0;
+ /* TODO: multi-BSS support */
+ NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, if_nametoindex(drv->iface));
- out:
+ return send_and_recv_msgs(drv, msg, NULL, NULL);
nla_put_failure:
- nlmsg_free(msg);
- return ret;
+ return -ENOBUFS;
}
static int i802_set_cts_protect(void *priv, int value)
{
- return -1;
+ return i802_set_bss(priv, value, -1, -1);
}
static int i802_set_preamble(void *priv, int value)
{
- return -1;
+ return i802_set_bss(priv, -1, value, -1);
}
static int i802_set_short_slot_time(void *priv, int value)
{
- return -1;
+ return i802_set_bss(priv, -1, -1, value);
}
struct phy_info_arg {
u16 *num_modes;
struct hostapd_hw_modes *modes;
- int error;
};
static int phy_info_handler(struct nl_msg *msg, void *arg)
[NL80211_FREQUENCY_ATTR_PASSIVE_SCAN] = { .type = NLA_FLAG },
[NL80211_FREQUENCY_ATTR_NO_IBSS] = { .type = NLA_FLAG },
[NL80211_FREQUENCY_ATTR_RADAR] = { .type = NLA_FLAG },
+ [NL80211_FREQUENCY_ATTR_MAX_TX_POWER] = { .type = NLA_U32 },
};
struct nlattr *tb_rate[NL80211_BITRATE_ATTR_MAX + 1];
nla_parse(tb_band, NL80211_BAND_ATTR_MAX, nla_data(nl_band),
nla_len(nl_band), NULL);
+ if (tb_band[NL80211_BAND_ATTR_HT_CAPA]) {
+ mode->ht_capab = nla_get_u16(
+ tb_band[NL80211_BAND_ATTR_HT_CAPA]);
+ }
+
nla_for_each_nested(nl_freq, tb_band[NL80211_BAND_ATTR_FREQS], rem_freq) {
nla_parse(tb_freq, NL80211_FREQUENCY_ATTR_MAX, nla_data(nl_freq),
nla_len(nl_freq), freq_policy);
continue;
mode->channels[idx].freq = nla_get_u32(tb_freq[NL80211_FREQUENCY_ATTR_FREQ]);
- mode->channels[idx].flag |= HOSTAPD_CHAN_W_SCAN |
- HOSTAPD_CHAN_W_ACTIVE_SCAN |
- HOSTAPD_CHAN_W_IBSS;
+ mode->channels[idx].flag = 0;
if (!mode_is_set) {
/* crude heuristic */
mode->channels[idx].chan = mode->channels[idx].freq/5 - 1000;
if (tb_freq[NL80211_FREQUENCY_ATTR_DISABLED])
- mode->channels[idx].flag &= ~HOSTAPD_CHAN_W_SCAN;
+ mode->channels[idx].flag |=
+ HOSTAPD_CHAN_DISABLED;
if (tb_freq[NL80211_FREQUENCY_ATTR_PASSIVE_SCAN])
- mode->channels[idx].flag &= ~HOSTAPD_CHAN_W_ACTIVE_SCAN;
+ mode->channels[idx].flag |=
+ HOSTAPD_CHAN_PASSIVE_SCAN;
if (tb_freq[NL80211_FREQUENCY_ATTR_NO_IBSS])
- mode->channels[idx].flag &= ~HOSTAPD_CHAN_W_IBSS;
+ mode->channels[idx].flag |=
+ HOSTAPD_CHAN_NO_IBSS;
+ if (tb_freq[NL80211_FREQUENCY_ATTR_RADAR])
+ mode->channels[idx].flag |=
+ HOSTAPD_CHAN_RADAR;
+
+ if (tb_freq[NL80211_FREQUENCY_ATTR_MAX_TX_POWER] &&
+ !tb_freq[NL80211_FREQUENCY_ATTR_DISABLED])
+ mode->channels[idx].max_tx_power =
+ nla_get_u32(tb_freq[NL80211_FREQUENCY_ATTR_MAX_TX_POWER]) / 100;
+
idx++;
}
}
}
- phy_info->error = 0;
-
return NL_SKIP;
}
+static struct hostapd_hw_modes *i802_add_11b(struct hostapd_hw_modes *modes,
+ u16 *num_modes)
+{
+ u16 m;
+ struct hostapd_hw_modes *mode11g = NULL, *nmodes, *mode;
+ int i, mode11g_idx = -1;
+
+ /* If only 802.11g mode is included, use it to construct matching
+ * 802.11b mode data. */
+
+ for (m = 0; m < *num_modes; m++) {
+ if (modes[m].mode == HOSTAPD_MODE_IEEE80211B)
+ return modes; /* 802.11b already included */
+ if (modes[m].mode == HOSTAPD_MODE_IEEE80211G)
+ mode11g_idx = m;
+ }
+
+ if (mode11g_idx < 0)
+ return modes; /* 2.4 GHz band not supported at all */
+
+ nmodes = os_realloc(modes, (*num_modes + 1) * sizeof(*nmodes));
+ if (nmodes == NULL)
+ return modes; /* Could not add 802.11b mode */
+
+ mode = &nmodes[*num_modes];
+ os_memset(mode, 0, sizeof(*mode));
+ (*num_modes)++;
+ modes = nmodes;
+
+ mode->mode = HOSTAPD_MODE_IEEE80211B;
+
+ mode11g = &modes[mode11g_idx];
+ mode->num_channels = mode11g->num_channels;
+ mode->channels = os_malloc(mode11g->num_channels *
+ sizeof(struct hostapd_channel_data));
+ if (mode->channels == NULL) {
+ (*num_modes)--;
+ return modes; /* Could not add 802.11b mode */
+ }
+ os_memcpy(mode->channels, mode11g->channels,
+ mode11g->num_channels * sizeof(struct hostapd_channel_data));
+
+ mode->num_rates = 0;
+ mode->rates = os_malloc(4 * sizeof(struct hostapd_rate_data));
+ if (mode->rates == NULL) {
+ os_free(mode->channels);
+ (*num_modes)--;
+ return modes; /* Could not add 802.11b mode */
+ }
+
+ for (i = 0; i < mode11g->num_rates; i++) {
+ if (mode11g->rates[i].rate > 110 ||
+ mode11g->rates[i].flags &
+ (HOSTAPD_RATE_ERP | HOSTAPD_RATE_OFDM))
+ continue;
+ mode->rates[mode->num_rates] = mode11g->rates[i];
+ mode->num_rates++;
+ if (mode->num_rates == 4)
+ break;
+ }
+
+ if (mode->num_rates == 0) {
+ os_free(mode->channels);
+ os_free(mode->rates);
+ (*num_modes)--;
+ return modes; /* No 802.11b rates */
+ }
+
+ wpa_printf(MSG_DEBUG, "nl80211: Added 802.11b mode based on 802.11g "
+ "information");
+
+ return modes;
+}
+
static struct hostapd_hw_modes *i802_get_hw_feature_data(void *priv,
u16 *num_modes,
u16 *flags)
{
struct i802_driver_data *drv = priv;
struct nl_msg *msg;
- int err = -1;
- struct nl_cb *cb = NULL;
- int finished;
struct phy_info_arg result = {
.num_modes = num_modes,
.modes = NULL,
- .error = 1,
};
*num_modes = 0;
NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, if_nametoindex(drv->iface));
- cb = nl_cb_alloc(NL_CB_CUSTOM);
- if (!cb)
- goto out;
-
- if (nl_send_auto_complete(drv->nl_handle, msg) < 0)
- goto out;
-
- nl_cb_set(cb, NL_CB_VALID, NL_CB_CUSTOM, phy_info_handler, &result);
- nl_cb_set(cb, NL_CB_ACK, NL_CB_CUSTOM, ack_wait_handler, &finished);
-
- err = nl_recvmsgs(drv->nl_handle, cb);
-
- if (!finished)
- err = nl_wait_for_ack(drv->nl_handle);
-
- if (err < 0 || result.error) {
- hostapd_free_hw_features(result.modes, *num_modes);
- result.modes = NULL;
- }
-
- out:
- nl_cb_put(cb);
+ if (send_and_recv_msgs(drv, msg, phy_info_handler, &result) == 0)
+ return i802_add_11b(result.modes, num_modes);
nla_put_failure:
- if (err)
- fprintf(stderr, "failed to get information: %d\n", err);
- nlmsg_free(msg);
- return result.modes;
+ return NULL;
}
{
struct i802_driver_data *drv = priv;
struct nl_msg *msg;
- int ret = -1;
msg = nlmsg_alloc();
if (!msg)
- goto out;
+ return -ENOMEM;
genlmsg_put(msg, 0, 0, genl_family_get_id(drv->nl80211), 0,
0, NL80211_CMD_SET_STATION, 0);
NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX,
if_nametoindex(ifname));
- ret = 0;
-
- if (nl_send_auto_complete(drv->nl_handle, msg) < 0 ||
- (errno = nl_wait_for_ack(drv->nl_handle) < 0)) {
- ret = -1;
- }
-
+ return send_and_recv_msgs(drv, msg, NULL, NULL);
nla_put_failure:
- nlmsg_free(msg);
-
- out:
- return ret;
+ return -ENOBUFS;
}
-static void handle_unknown_sta(struct hostapd_data *hapd, u8 *ta)
+static int i802_set_country(void *priv, const char *country)
{
- struct sta_info *sta;
+ struct i802_driver_data *drv = priv;
+ struct nl_msg *msg;
+ char alpha2[3];
- sta = ap_get_sta(hapd, ta);
- if (!sta || !(sta->flags & WLAN_STA_ASSOC)) {
- printf("Data/PS-poll frame from not associated STA "
- MACSTR "\n", MAC2STR(ta));
- if (sta && (sta->flags & WLAN_STA_AUTH))
- hostapd_sta_disassoc(
- hapd, ta,
- WLAN_REASON_CLASS3_FRAME_FROM_NONASSOC_STA);
- else
- hostapd_sta_deauth(
- hapd, ta,
- WLAN_REASON_CLASS3_FRAME_FROM_NONASSOC_STA);
- }
+ msg = nlmsg_alloc();
+ if (!msg)
+ return -ENOMEM;
+
+ genlmsg_put(msg, 0, 0, genl_family_get_id(drv->nl80211), 0,
+ 0, NL80211_CMD_REQ_SET_REG, 0);
+
+ alpha2[0] = country[0];
+ alpha2[1] = country[1];
+ alpha2[2] = '\0';
+ NLA_PUT_STRING(msg, NL80211_ATTR_REG_ALPHA2, alpha2);
+
+ return send_and_recv_msgs(drv, msg, NULL, NULL);
+ nla_put_failure:
+ return -ENOBUFS;
}
{
struct ieee80211_hdr *hdr;
u16 fc, type, stype;
- struct sta_info *sta;
hdr = (struct ieee80211_hdr *) buf;
fc = le_to_host16(hdr->frame_control);
case WLAN_FC_TYPE_MGMT:
wpa_printf(MSG_DEBUG, "MGMT (TX callback) %s",
ok ? "ACK" : "fail");
- ieee802_11_mgmt_cb(hapd, buf, len, stype, ok);
+ hostapd_mgmt_tx_cb(hapd, buf, len, stype, ok);
break;
case WLAN_FC_TYPE_CTRL:
wpa_printf(MSG_DEBUG, "CTRL (TX callback) %s",
ok ? "ACK" : "fail");
break;
case WLAN_FC_TYPE_DATA:
- wpa_printf(MSG_DEBUG, "DATA (TX callback) %s",
- ok ? "ACK" : "fail");
- sta = ap_get_sta(hapd, hdr->addr1);
- if (sta && sta->flags & WLAN_STA_PENDING_POLL) {
- wpa_printf(MSG_DEBUG, "STA " MACSTR " %s pending "
- "activity poll", MAC2STR(sta->addr),
- ok ? "ACKed" : "did not ACK");
- if (ok)
- sta->flags &= ~WLAN_STA_PENDING_POLL;
- }
- if (sta)
- ieee802_1x_tx_status(hapd, sta, buf, len, ok);
+ hostapd_tx_status(hapd, hdr->addr1, buf, len, ok);
break;
default:
printf("unknown TX callback frame type %d\n", type);
}
-static void handle_frame(struct hostapd_iface *iface, u8 *buf, size_t len,
+static void handle_frame(struct i802_driver_data *drv,
+ struct hostapd_iface *iface, u8 *buf, size_t len,
struct hostapd_frame_info *hfi,
enum ieee80211_msg_type msg_type)
{
case WLAN_FC_TODS:
bssid = hdr->addr1;
break;
+ case WLAN_FC_FROMDS:
+ bssid = hdr->addr2;
+ break;
default:
/* discard */
return;
wpa_printf(MSG_MSGDUMP, "MGMT");
if (broadcast_bssid) {
for (i = 0; i < iface->num_bss; i++)
- ieee802_11_mgmt(iface->bss[i], buf, data_len,
+ hostapd_mgmt_rx(iface->bss[i], buf, data_len,
stype, hfi);
} else
- ieee802_11_mgmt(hapd, buf, data_len, stype, hfi);
+ hostapd_mgmt_rx(hapd, buf, data_len, stype, hfi);
break;
case WLAN_FC_TYPE_CTRL:
/* can only get here with PS-Poll frames */
wpa_printf(MSG_DEBUG, "CTRL");
- handle_unknown_sta(hapd, hdr->addr2);
+ hostapd_rx_from_unknown_sta(drv->hapd, hdr->addr2);
break;
case WLAN_FC_TYPE_DATA:
- wpa_printf(MSG_DEBUG, "DATA");
- handle_unknown_sta(hapd, hdr->addr2);
+ hostapd_rx_from_unknown_sta(drv->hapd, hdr->addr2);
break;
}
}
static void handle_eapol(int sock, void *eloop_ctx, void *sock_ctx)
{
struct i802_driver_data *drv = eloop_ctx;
- struct hostapd_data *hapd = drv->hapd;
struct sockaddr_ll lladdr;
unsigned char buf[3000];
int len;
return;
}
- if (have_ifidx(drv, lladdr.sll_ifindex))
- ieee802_1x_receive(hapd, lladdr.sll_addr, buf, len);
+ if (have_ifidx(drv, lladdr.sll_ifindex)) {
+ struct hostapd_data *hapd;
+ hapd = hostapd_sta_get_bss(drv->hapd, lladdr.sll_addr);
+ if (!hapd)
+ return;
+ hostapd_eapol_receive(hapd, lladdr.sll_addr, buf, len);
+ }
}
else
msg_type = ieee80211_msg_tx_callback_ack;
- handle_frame(hapd->iface, buf + iter.max_length,
+ handle_frame(drv, hapd->iface, buf + iter.max_length,
len - iter.max_length, &hfi, msg_type);
}
+/*
+ * we post-process the filter code later and rewrite
+ * this to the offset to the last instruction
+ */
+#define PASS 0xFF
+#define FAIL 0xFE
+
+static struct sock_filter msock_filter_insns[] = {
+ /*
+ * do a little-endian load of the radiotap length field
+ */
+ /* load lower byte into A */
+ BPF_STMT(BPF_LD | BPF_B | BPF_ABS, 2),
+ /* put it into X (== index register) */
+ BPF_STMT(BPF_MISC| BPF_TAX, 0),
+ /* load upper byte into A */
+ BPF_STMT(BPF_LD | BPF_B | BPF_ABS, 3),
+ /* left-shift it by 8 */
+ BPF_STMT(BPF_ALU | BPF_LSH | BPF_K, 8),
+ /* or with X */
+ BPF_STMT(BPF_ALU | BPF_OR | BPF_X, 0),
+ /* put result into X */
+ BPF_STMT(BPF_MISC| BPF_TAX, 0),
+
+ /*
+ * Allow management frames through, this also gives us those
+ * management frames that we sent ourselves with status
+ */
+ /* load the lower byte of the IEEE 802.11 frame control field */
+ BPF_STMT(BPF_LD | BPF_B | BPF_IND, 0),
+ /* mask off frame type and version */
+ BPF_STMT(BPF_ALU | BPF_AND | BPF_K, 0xF),
+ /* accept frame if it's both 0, fall through otherwise */
+ BPF_JUMP(BPF_JMP | BPF_JEQ | BPF_K, 0, PASS, 0),
+
+ /*
+ * TODO: add a bit to radiotap RX flags that indicates
+ * that the sending station is not associated, then
+ * add a filter here that filters on our DA and that flag
+ * to allow us to deauth frames to that bad station.
+ *
+ * Not a regression -- we didn't do it before either.
+ */
+
+#if 0
+ /*
+ * drop non-data frames, WDS frames
+ */
+ /* load the lower byte of the frame control field */
+ BPF_STMT(BPF_LD | BPF_B | BPF_IND, 0),
+ /* mask off QoS bit */
+ BPF_STMT(BPF_ALU | BPF_AND | BPF_K, 0x0c),
+ /* drop non-data frames */
+ BPF_JUMP(BPF_JMP | BPF_JEQ | BPF_K, 8, 0, FAIL),
+ /* load the upper byte of the frame control field */
+ BPF_STMT(BPF_LD | BPF_B | BPF_IND, 0),
+ /* mask off toDS/fromDS */
+ BPF_STMT(BPF_ALU | BPF_AND | BPF_K, 0x03),
+ /* drop WDS frames */
+ BPF_JUMP(BPF_JMP | BPF_JEQ | BPF_K, 3, FAIL, 0),
+#endif
+
+ /*
+ * add header length to index
+ */
+ /* load the lower byte of the frame control field */
+ BPF_STMT(BPF_LD | BPF_B | BPF_IND, 0),
+ /* mask off QoS bit */
+ BPF_STMT(BPF_ALU | BPF_AND | BPF_K, 0x80),
+ /* right shift it by 6 to give 0 or 2 */
+ BPF_STMT(BPF_ALU | BPF_RSH | BPF_K, 6),
+ /* add data frame header length */
+ BPF_STMT(BPF_ALU | BPF_ADD | BPF_K, 24),
+ /* add index, was start of 802.11 header */
+ BPF_STMT(BPF_ALU | BPF_ADD | BPF_X, 0),
+ /* move to index, now start of LL header */
+ BPF_STMT(BPF_MISC | BPF_TAX, 0),
+
+ /*
+ * Accept empty data frames, we use those for
+ * polling activity.
+ */
+ BPF_STMT(BPF_LD | BPF_W | BPF_LEN, 0),
+ BPF_JUMP(BPF_JMP | BPF_JEQ | BPF_X, 0, PASS, 0),
+
+ /*
+ * Accept EAPOL frames
+ */
+ BPF_STMT(BPF_LD | BPF_W | BPF_IND, 0),
+ BPF_JUMP(BPF_JMP | BPF_JEQ | BPF_K, 0xAAAA0300, 0, FAIL),
+ BPF_STMT(BPF_LD | BPF_W | BPF_IND, 4),
+ BPF_JUMP(BPF_JMP | BPF_JEQ | BPF_K, 0x0000888E, PASS, FAIL),
+
+ /* keep these last two statements or change the code below */
+ /* return 0 == "DROP" */
+ BPF_STMT(BPF_RET | BPF_K, 0),
+ /* return ~0 == "keep all" */
+ BPF_STMT(BPF_RET | BPF_K, ~0),
+};
+
+static struct sock_fprog msock_filter = {
+ .len = sizeof(msock_filter_insns)/sizeof(msock_filter_insns[0]),
+ .filter = msock_filter_insns,
+};
+
+
+static int add_monitor_filter(int s)
+{
+ int idx;
+
+ /* rewrite all PASS/FAIL jump offsets */
+ for (idx = 0; idx < msock_filter.len; idx++) {
+ struct sock_filter *insn = &msock_filter_insns[idx];
+
+ if (BPF_CLASS(insn->code) == BPF_JMP) {
+ if (insn->code == (BPF_JMP|BPF_JA)) {
+ if (insn->k == PASS)
+ insn->k = msock_filter.len - idx - 2;
+ else if (insn->k == FAIL)
+ insn->k = msock_filter.len - idx - 3;
+ }
+
+ if (insn->jt == PASS)
+ insn->jt = msock_filter.len - idx - 2;
+ else if (insn->jt == FAIL)
+ insn->jt = msock_filter.len - idx - 3;
+
+ if (insn->jf == PASS)
+ insn->jf = msock_filter.len - idx - 2;
+ else if (insn->jf == FAIL)
+ insn->jf = msock_filter.len - idx - 3;
+ }
+ }
+
+ if (setsockopt(s, SOL_SOCKET, SO_ATTACH_FILTER,
+ &msock_filter, sizeof(msock_filter))) {
+ perror("SO_ATTACH_FILTER");
+ return -1;
+ }
+
+ return 0;
+}
+
+
static int nl80211_create_monitor_interface(struct i802_driver_data *drv)
{
char buf[IFNAMSIZ];
goto error;
}
+ if (add_monitor_filter(drv->monitor_sock)) {
+ wpa_printf(MSG_INFO, "Failed to set socket filter for monitor "
+ "interface; do filtering in user space");
+ /* This works, but will cost in performance. */
+ }
+
if (bind(drv->monitor_sock, (struct sockaddr *) &ll,
sizeof(ll)) < 0) {
perror("monitor socket bind");
}
-static int nl80211_set_master_mode(struct i802_driver_data *drv,
- const char *ifname)
+static int nl80211_set_mode(struct i802_driver_data *drv, const char *ifname,
+ int mode)
{
struct nl_msg *msg;
+ int ret = -ENOBUFS;
msg = nlmsg_alloc();
if (!msg)
- return -1;
+ return -ENOMEM;
genlmsg_put(msg, 0, 0, genl_family_get_id(drv->nl80211), 0,
0, NL80211_CMD_SET_INTERFACE, 0);
NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX,
if_nametoindex(ifname));
- NLA_PUT_U32(msg, NL80211_ATTR_IFTYPE, NL80211_IFTYPE_AP);
+ NLA_PUT_U32(msg, NL80211_ATTR_IFTYPE, mode);
- if (nl_send_auto_complete(drv->nl_handle, msg) < 0 ||
- nl_wait_for_ack(drv->nl_handle) < 0) {
+ ret = send_and_recv_msgs(drv, msg, NULL, NULL);
+ if (!ret)
+ return 0;
nla_put_failure:
- wpa_printf(MSG_ERROR, "Failed to set interface %s to master "
- "mode.", ifname);
- nlmsg_free(msg);
+ wpa_printf(MSG_ERROR, "Failed to set interface %s to master "
+ "mode.", ifname);
+ return ret;
+}
+
+
+#ifdef CONFIG_IEEE80211N
+static void i802_add_neighbor(struct i802_driver_data *drv, u8 *bssid,
+ int freq, u8 *ie, size_t ie_len)
+{
+ struct ieee802_11_elems elems;
+ int ht, pri_chan = 0, sec_chan = 0;
+ struct ieee80211_ht_operation *oper;
+ struct hostapd_neighbor_bss *nnei;
+
+ ieee802_11_parse_elems(ie, ie_len, &elems, 0);
+ ht = elems.ht_capabilities || elems.ht_operation;
+ if (elems.ht_operation && elems.ht_operation_len >= sizeof(*oper)) {
+ oper = (struct ieee80211_ht_operation *) elems.ht_operation;
+ pri_chan = oper->control_chan;
+ if (oper->ht_param & HT_INFO_HT_PARAM_REC_TRANS_CHNL_WIDTH) {
+ if (oper->ht_param &
+ HT_INFO_HT_PARAM_SECONDARY_CHNL_ABOVE)
+ sec_chan = pri_chan + 4;
+ else if (oper->ht_param &
+ HT_INFO_HT_PARAM_SECONDARY_CHNL_BELOW)
+ sec_chan = pri_chan - 4;
+ }
+ }
+
+ wpa_printf(MSG_DEBUG, "nl80211: Neighboring BSS - bssid=" MACSTR
+ " freq=%d MHz HT=%d pri_chan=%d sec_chan=%d",
+ MAC2STR(bssid), freq, ht, pri_chan, sec_chan);
+
+ nnei = os_realloc(drv->neighbors, (drv->num_neighbors + 1) *
+ sizeof(struct hostapd_neighbor_bss));
+ if (nnei == NULL)
+ return;
+ drv->neighbors = nnei;
+ nnei = &nnei[drv->num_neighbors];
+ os_memcpy(nnei->bssid, bssid, ETH_ALEN);
+ nnei->freq = freq;
+ nnei->ht = !!ht;
+ nnei->pri_chan = pri_chan;
+ nnei->sec_chan = sec_chan;
+ drv->num_neighbors++;
+}
+
+
+static int i802_get_scan_freq(struct iw_event *iwe, int *freq)
+{
+ int divi = 1000000, i;
+
+ if (iwe->u.freq.e == 0) {
+ /*
+ * Some drivers do not report frequency, but a channel.
+ * Try to map this to frequency by assuming they are using
+ * IEEE 802.11b/g. But don't overwrite a previously parsed
+ * frequency if the driver sends both frequency and channel,
+ * since the driver may be sending an A-band channel that we
+ * don't handle here.
+ */
+
+ if (*freq)
+ return 0;
+
+ if (iwe->u.freq.m >= 1 && iwe->u.freq.m <= 13) {
+ *freq = 2407 + 5 * iwe->u.freq.m;
+ return 0;
+ } else if (iwe->u.freq.m == 14) {
+ *freq = 2484;
+ return 0;
+ }
+ }
+
+ if (iwe->u.freq.e > 6) {
+ wpa_printf(MSG_DEBUG, "Invalid freq in scan results: "
+ "m=%d e=%d", iwe->u.freq.m, iwe->u.freq.e);
return -1;
}
- nlmsg_free(msg);
+ for (i = 0; i < iwe->u.freq.e; i++)
+ divi /= 10;
+ *freq = iwe->u.freq.m / divi;
+ return 0;
+}
+
+
+static int i802_parse_scan(struct i802_driver_data *drv, u8 *res_buf,
+ size_t len)
+{
+ size_t ap_num = 0;
+ int first;
+ struct iw_event iwe_buf, *iwe = &iwe_buf;
+ char *pos, *end, *custom;
+ u8 bssid[ETH_ALEN];
+ int freq = 0;
+ u8 *ie = NULL;
+ size_t ie_len = 0;
+
+ ap_num = 0;
+ first = 1;
+
+ pos = (char *) res_buf;
+ end = (char *) res_buf + len;
+
+ while (pos + IW_EV_LCP_LEN <= end) {
+ /* Event data may be unaligned, so make a local, aligned copy
+ * before processing. */
+ os_memcpy(&iwe_buf, pos, IW_EV_LCP_LEN);
+ if (iwe->len <= IW_EV_LCP_LEN)
+ break;
+
+ custom = pos + IW_EV_POINT_LEN;
+ if (iwe->cmd == IWEVGENIE) {
+ /* WE-19 removed the pointer from struct iw_point */
+ char *dpos = (char *) &iwe_buf.u.data.length;
+ int dlen = dpos - (char *) &iwe_buf;
+ os_memcpy(dpos, pos + IW_EV_LCP_LEN,
+ sizeof(struct iw_event) - dlen);
+ } else {
+ os_memcpy(&iwe_buf, pos, sizeof(struct iw_event));
+ custom += IW_EV_POINT_OFF;
+ }
+
+ switch (iwe->cmd) {
+ case SIOCGIWAP:
+ if (!first)
+ i802_add_neighbor(drv, bssid, freq, ie,
+ ie_len);
+ first = 0;
+ os_memcpy(bssid, iwe->u.ap_addr.sa_data, ETH_ALEN);
+ freq = 0;
+ ie = NULL;
+ ie_len = 0;
+ break;
+ case SIOCGIWFREQ:
+ i802_get_scan_freq(iwe, &freq);
+ break;
+ case IWEVGENIE:
+ if (custom + iwe->u.data.length > end) {
+ wpa_printf(MSG_ERROR, "IWEVGENIE overflow");
+ return -1;
+ }
+ ie = (u8 *) custom;
+ ie_len = iwe->u.data.length;
+ break;
+ }
+
+ pos += iwe->len;
+ }
+
+ if (!first)
+ i802_add_neighbor(drv, bssid, freq, ie, ie_len);
+
+ return 0;
+}
+
+
+static int i802_get_ht_scan_res(struct i802_driver_data *drv)
+{
+ struct iwreq iwr;
+ u8 *res_buf;
+ size_t res_buf_len;
+ int res;
+
+ res_buf_len = IW_SCAN_MAX_DATA;
+ for (;;) {
+ res_buf = os_malloc(res_buf_len);
+ if (res_buf == NULL)
+ return -1;
+ os_memset(&iwr, 0, sizeof(iwr));
+ os_strlcpy(iwr.ifr_name, drv->iface, IFNAMSIZ);
+ iwr.u.data.pointer = res_buf;
+ iwr.u.data.length = res_buf_len;
+
+ if (ioctl(drv->ioctl_sock, SIOCGIWSCAN, &iwr) == 0)
+ break;
+
+ if (errno == E2BIG && res_buf_len < 65535) {
+ os_free(res_buf);
+ res_buf = NULL;
+ res_buf_len *= 2;
+ if (res_buf_len > 65535)
+ res_buf_len = 65535; /* 16-bit length field */
+ wpa_printf(MSG_DEBUG, "Scan results did not fit - "
+ "trying larger buffer (%lu bytes)",
+ (unsigned long) res_buf_len);
+ } else {
+ perror("ioctl[SIOCGIWSCAN]");
+ os_free(res_buf);
+ return -1;
+ }
+ }
+
+ if (iwr.u.data.length > res_buf_len) {
+ os_free(res_buf);
+ return -1;
+ }
+
+ res = i802_parse_scan(drv, res_buf, iwr.u.data.length);
+ os_free(res_buf);
+
+ return res;
+}
+
+
+static int i802_is_event_wireless_scan_complete(char *data, int len)
+{
+ struct iw_event iwe_buf, *iwe = &iwe_buf;
+ char *pos, *end;
+
+ pos = data;
+ end = data + len;
+
+ while (pos + IW_EV_LCP_LEN <= end) {
+ /* Event data may be unaligned, so make a local, aligned copy
+ * before processing. */
+ os_memcpy(&iwe_buf, pos, IW_EV_LCP_LEN);
+ if (iwe->cmd == SIOCGIWSCAN)
+ return 1;
+
+ pos += iwe->len;
+ }
+
+ return 0;
+}
+
+
+static int i802_is_rtm_scan_complete(int ifindex, struct nlmsghdr *h, int len)
+{
+ struct ifinfomsg *ifi;
+ int attrlen, _nlmsg_len, rta_len;
+ struct rtattr *attr;
+
+ if (len < (int) sizeof(*ifi))
+ return 0;
+
+ ifi = NLMSG_DATA(h);
+
+ if (ifindex != ifi->ifi_index)
+ return 0; /* event for foreign ifindex */
+
+ _nlmsg_len = NLMSG_ALIGN(sizeof(struct ifinfomsg));
+
+ attrlen = h->nlmsg_len - _nlmsg_len;
+ if (attrlen < 0)
+ return 0;
+
+ attr = (struct rtattr *) (((char *) ifi) + _nlmsg_len);
+
+ rta_len = RTA_ALIGN(sizeof(struct rtattr));
+ while (RTA_OK(attr, attrlen)) {
+ if (attr->rta_type == IFLA_WIRELESS &&
+ i802_is_event_wireless_scan_complete(
+ ((char *) attr) + rta_len,
+ attr->rta_len - rta_len))
+ return 1;
+ attr = RTA_NEXT(attr, attrlen);
+ }
+
+ return 0;
+}
+
+
+static int i802_is_scan_complete(int s, int ifindex)
+{
+ char buf[1024];
+ int left;
+ struct nlmsghdr *h;
+
+ left = recv(s, buf, sizeof(buf), MSG_DONTWAIT);
+ if (left < 0) {
+ perror("recv(netlink)");
+ return 0;
+ }
+
+ h = (struct nlmsghdr *) buf;
+ while (left >= (int) sizeof(*h)) {
+ int len, plen;
+
+ len = h->nlmsg_len;
+ plen = len - sizeof(*h);
+ if (len > left || plen < 0) {
+ wpa_printf(MSG_DEBUG, "Malformed netlink message: "
+ "len=%d left=%d plen=%d",
+ len, left, plen);
+ break;
+ }
+
+ switch (h->nlmsg_type) {
+ case RTM_NEWLINK:
+ if (i802_is_rtm_scan_complete(ifindex, h, plen))
+ return 1;
+ break;
+ }
+
+ len = NLMSG_ALIGN(len);
+ left -= len;
+ h = (struct nlmsghdr *) ((char *) h + len);
+ }
return 0;
}
-
+
+
+static int i802_ht_scan(struct i802_driver_data *drv)
+{
+ struct iwreq iwr;
+ int s, res, ifindex;
+ struct sockaddr_nl local;
+ time_t now, end;
+ fd_set rfds;
+ struct timeval tv;
+
+ wpa_printf(MSG_DEBUG, "nl80211: Scanning overlapping BSSes before "
+ "starting HT 20/40 MHz BSS");
+
+ /* Request a new scan */
+ /* TODO: would be enough to scan the selected band */
+ os_memset(&iwr, 0, sizeof(iwr));
+ os_strlcpy(iwr.ifr_name, drv->iface, IFNAMSIZ);
+ if (ioctl(drv->ioctl_sock, SIOCSIWSCAN, &iwr) < 0) {
+ perror("ioctl[SIOCSIWSCAN]");
+ return -1;
+ }
+
+ ifindex = if_nametoindex(drv->iface);
+
+ /* Wait for scan completion event or timeout */
+ s = socket(PF_NETLINK, SOCK_RAW, NETLINK_ROUTE);
+ if (s < 0) {
+ perror("socket(PF_NETLINK,SOCK_RAW,NETLINK_ROUTE)");
+ return -1;
+ }
+
+ os_memset(&local, 0, sizeof(local));
+ local.nl_family = AF_NETLINK;
+ local.nl_groups = RTMGRP_LINK;
+ if (bind(s, (struct sockaddr *) &local, sizeof(local)) < 0) {
+ perror("bind(netlink)");
+ close(s);
+ return -1;
+ }
+
+ time(&end);
+ end += 30; /* Wait at most 30 seconds for scan results */
+ for (;;) {
+ time(&now);
+ tv.tv_sec = end > now ? end - now : 0;
+ tv.tv_usec = 0;
+ FD_ZERO(&rfds);
+ FD_SET(s, &rfds);
+ res = select(s + 1, &rfds, NULL, NULL, &tv);
+ if (res < 0) {
+ perror("select");
+ /* Assume results are ready after 10 seconds wait */
+ os_sleep(10, 0);
+ break;
+ } else if (res) {
+ if (i802_is_scan_complete(s, ifindex)) {
+ wpa_printf(MSG_DEBUG, "nl80211: Scan "
+ "completed");
+ break;
+ }
+ } else {
+ wpa_printf(MSG_DEBUG, "nl80211: Scan timeout");
+ /* Assume results are ready to be read now */
+ break;
+ }
+ }
+
+ close(s);
+
+ return i802_get_ht_scan_res(drv);
+}
+#endif /* CONFIG_IEEE80211N */
+
static int i802_init_sockets(struct i802_driver_data *drv, const u8 *bssid)
{
struct ifreq ifr;
- struct sockaddr_ll addr;
-
- drv->ioctl_sock = -1;
drv->ioctl_sock = socket(PF_INET, SOCK_DGRAM, 0);
if (drv->ioctl_sock < 0) {
/*
* initialise generic netlink and nl80211
*/
- drv->nl_handle = nl_handle_alloc();
+ drv->nl_cb = nl_cb_alloc(NL_CB_DEFAULT);
+ if (!drv->nl_cb) {
+ printf("Failed to allocate netlink callbacks.\n");
+ return -1;
+ }
+
+ drv->nl_handle = nl_handle_alloc_cb(drv->nl_cb);
if (!drv->nl_handle) {
printf("Failed to allocate netlink handle.\n");
return -1;
return -1;
}
+#ifdef CONFIG_LIBNL20
+ if (genl_ctrl_alloc_cache(drv->nl_handle, &drv->nl_cache) < 0) {
+ printf("Failed to allocate generic netlink cache.\n");
+ return -1;
+ }
+#else /* CONFIG_LIBNL20 */
drv->nl_cache = genl_ctrl_alloc_cache(drv->nl_handle);
if (!drv->nl_cache) {
printf("Failed to allocate generic netlink cache.\n");
return -1;
}
+#endif /* CONFIG_LIBNL20 */
drv->nl80211 = genl_ctrl_search_by_name(drv->nl_cache, "nl80211");
if (!drv->nl80211) {
return -1;
}
+#ifdef CONFIG_IEEE80211N
+ if (drv->ht_40mhz_scan) {
+ if (nl80211_set_mode(drv, drv->iface, NL80211_IFTYPE_STATION)
+ || hostapd_set_iface_flags(drv, drv->iface, 1) ||
+ i802_ht_scan(drv) ||
+ hostapd_set_iface_flags(drv, drv->iface, 0)) {
+ wpa_printf(MSG_ERROR, "Failed to scan channels for "
+ "HT 40 MHz operations");
+ return -1;
+ }
+ }
+#endif /* CONFIG_IEEE80211N */
+
/* Initialise a monitor interface */
if (nl80211_create_monitor_interface(drv))
return -1;
- if (nl80211_set_master_mode(drv, drv->iface))
- return -1;
+ if (nl80211_set_mode(drv, drv->iface, NL80211_IFTYPE_AP))
+ goto fail1;
if (hostapd_set_iface_flags(drv, drv->iface, 1))
- return -1;
-
- memset(&addr, 0, sizeof(addr));
- addr.sll_family = AF_PACKET;
- addr.sll_ifindex = ifr.ifr_ifindex;
- wpa_printf(MSG_DEBUG, "Opening raw packet socket for ifindex %d",
- addr.sll_ifindex);
+ goto fail1;
drv->eapol_sock = socket(PF_PACKET, SOCK_DGRAM, htons(ETH_P_PAE));
if (drv->eapol_sock < 0) {
perror("socket(PF_PACKET, SOCK_DGRAM, ETH_P_PAE)");
- return -1;
+ goto fail1;
}
if (eloop_register_read_sock(drv->eapol_sock, handle_eapol, drv, NULL))
return -1;
}
- memset(&ifr, 0, sizeof(ifr));
- os_strlcpy(ifr.ifr_name, drv->iface, sizeof(ifr.ifr_name));
- if (ioctl(drv->ioctl_sock, SIOCGIFHWADDR, &ifr) != 0) {
+ memset(&ifr, 0, sizeof(ifr));
+ os_strlcpy(ifr.ifr_name, drv->iface, sizeof(ifr.ifr_name));
+ if (ioctl(drv->ioctl_sock, SIOCGIFHWADDR, &ifr) != 0) {
perror("ioctl(SIOCGIFHWADDR)");
- return -1;
- }
+ goto fail1;
+ }
if (ifr.ifr_hwaddr.sa_family != ARPHRD_ETHER) {
printf("Invalid HW-addr family 0x%04x\n",
ifr.ifr_hwaddr.sa_family);
- return -1;
+ goto fail1;
}
memcpy(drv->hapd->own_addr, ifr.ifr_hwaddr.sa_data, ETH_ALEN);
return 0;
+
+fail1:
+ nl80211_remove_iface(drv, drv->monitor_ifidx);
+ return -1;
}
}
pos += 5;
if (hwaddr_aton(pos, addr) == 0) {
- ieee80211_michael_mic_failure(drv->hapd, addr, 1);
+ hostapd_michael_mic_failure(drv->hapd, addr);
} else {
wpa_printf(MSG_DEBUG,
"MLME-MICHAELMICFAILURE.indication "
struct nlmsghdr *h, int len)
{
struct ifinfomsg *ifi;
- int attrlen, nlmsg_len, rta_len;
+ int attrlen, _nlmsg_len, rta_len;
struct rtattr *attr;
if (len < (int) sizeof(*ifi))
/* TODO: use ifi->ifi_index to filter out wireless events from other
* interfaces */
- nlmsg_len = NLMSG_ALIGN(sizeof(struct ifinfomsg));
+ _nlmsg_len = NLMSG_ALIGN(sizeof(struct ifinfomsg));
- attrlen = h->nlmsg_len - nlmsg_len;
+ attrlen = h->nlmsg_len - _nlmsg_len;
if (attrlen < 0)
return;
- attr = (struct rtattr *) (((char *) ifi) + nlmsg_len);
+ attr = (struct rtattr *) (((char *) ifi) + _nlmsg_len);
rta_len = RTA_ALIGN(sizeof(struct rtattr));
while (RTA_OK(attr, attrlen)) {
}
-static int i802_wireless_event_init(void *priv)
+static int i802_wireless_event_init(struct i802_driver_data *drv)
{
- struct i802_driver_data *drv = priv;
int s;
struct sockaddr_nl local;
}
-static void i802_wireless_event_deinit(void *priv)
+static void i802_wireless_event_deinit(struct i802_driver_data *drv)
{
- struct i802_driver_data *drv = priv;
if (drv->wext_sock < 0)
return;
eloop_unregister_read_sock(drv->wext_sock);
}
+static const struct hostapd_neighbor_bss *
+i802_get_neighbor_bss(void *priv, size_t *num)
+{
+ struct i802_driver_data *drv = priv;
+ *num = drv->num_neighbors;
+ return drv->neighbors;
+}
+
+
static void *i802_init_bssid(struct hostapd_data *hapd, const u8 *bssid)
{
struct i802_driver_data *drv;
+ size_t i;
drv = os_zalloc(sizeof(struct i802_driver_data));
if (drv == NULL) {
drv->hapd = hapd;
memcpy(drv->iface, hapd->conf->iface, sizeof(drv->iface));
+ memcpy(drv->bss.iface, hapd->conf->iface, sizeof(drv->iface));
drv->num_if_indices = sizeof(drv->default_if_indices) / sizeof(int);
drv->if_indices = drv->default_if_indices;
+ for (i = 0; i < hapd->iface->num_bss; i++) {
+ struct hostapd_data *bss = hapd->iface->bss[i];
+ if (bss->conf->bridge)
+ add_ifidx(drv, if_nametoindex(bss->conf->bridge));
+ }
+ drv->ht_40mhz_scan = hapd->iconf->secondary_channel != 0;
if (i802_init_sockets(drv, bssid))
goto failed;
+ if (i802_wireless_event_init(drv))
+ goto failed;
+
return drv;
failed:
static void i802_deinit(void *priv)
{
struct i802_driver_data *drv = priv;
+ struct i802_bss *bss, *prev;
+
+ i802_wireless_event_deinit(drv);
+
+ if (drv->last_freq_ht) {
+ /* Clear HT flags from the driver */
+ struct hostapd_freq_params freq;
+ os_memset(&freq, 0, sizeof(freq));
+ freq.freq = drv->last_freq;
+ i802_set_freq(priv, &freq);
+ }
i802_del_beacon(drv);
genl_family_put(drv->nl80211);
nl_cache_free(drv->nl_cache);
nl_handle_destroy(drv->nl_handle);
+ nl_cb_put(drv->nl_cb);
if (drv->if_indices != drv->default_if_indices)
free(drv->if_indices);
+ os_free(drv->neighbors);
+
+ bss = drv->bss.next;
+ while (bss) {
+ prev = bss;
+ bss = bss->next;
+ os_free(bss);
+ }
+
free(drv);
}
-const struct wpa_driver_ops wpa_driver_nl80211_ops = {
+const struct hapd_driver_ops wpa_driver_nl80211_ops = {
.name = "nl80211",
.init = i802_init,
.init_bssid = i802_init_bssid,
.deinit = i802_deinit,
- .wireless_event_init = i802_wireless_event_init,
- .wireless_event_deinit = i802_wireless_event_deinit,
- .set_ieee8021x = i802_set_ieee8021x,
- .set_privacy = i802_set_privacy,
- .set_encryption = i802_set_encryption,
+ .set_key = i802_set_key,
.get_seqnum = i802_get_seqnum,
.flush = i802_flush,
.read_sta_data = i802_read_sta_data,
.sta_deauth = i802_sta_deauth,
.sta_disassoc = i802_sta_disassoc,
.sta_remove = i802_sta_remove,
- .set_ssid = i802_set_ssid,
.send_mgmt_frame = i802_send_mgmt_frame,
.sta_add = i802_sta_add,
.get_inact_sec = i802_get_inact_sec,
.sta_clear_stats = i802_sta_clear_stats,
.set_freq = i802_set_freq,
.set_rts = i802_set_rts,
- .get_rts = i802_get_rts,
.set_frag = i802_set_frag,
- .get_frag = i802_get_frag,
.set_retry = i802_set_retry,
- .get_retry = i802_get_retry,
.set_rate_sets = i802_set_rate_sets,
- .set_channel_flag = i802_set_channel_flag,
- .set_regulatory_domain = i802_set_regulatory_domain,
.set_beacon = i802_set_beacon,
- .set_internal_bridge = i802_set_internal_bridge,
.set_beacon_int = i802_set_beacon_int,
- .set_dtim_period = i802_set_dtim_period,
.set_cts_protect = i802_set_cts_protect,
.set_preamble = i802_set_preamble,
.set_short_slot_time = i802_set_short_slot_time,
.if_remove = i802_if_remove,
.get_hw_feature_data = i802_get_hw_feature_data,
.set_sta_vlan = i802_set_sta_vlan,
+ .set_country = i802_set_country,
+ .get_neighbor_bss = i802_get_neighbor_bss,
};
projects / wpasupplicant / blobdiff