/*
- * WPA Supplicant - driver interaction with Linux nl80211/cfg80211
- * Copyright (c) 2003-2008, Jouni Malinen <j@w1.fi>
+ * Driver interaction with Linux nl80211/cfg80211
+ * Copyright (c) 2002-2008, Jouni Malinen <j@w1.fi>
+ * Copyright (c) 2003-2004, Instant802 Networks, Inc.
+ * Copyright (c) 2005-2006, Devicescape Software, Inc.
+ * Copyright (c) 2007, Johannes Berg <johannes@sipsolutions.net>
+ * Copyright (c) 2009, Atheros Communications
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
#include "includes.h"
#include <sys/ioctl.h>
#include <net/if_arp.h>
+#include <net/if.h>
#include <netlink/genl/genl.h>
#include <netlink/genl/family.h>
#include <netlink/genl/ctrl.h>
#include "nl80211_copy.h"
+#ifndef NO_WEXT
#include "wireless_copy.h"
+#endif /* NO_WEXT */
#include "common.h"
#include "driver.h"
#include "eloop.h"
#include "ieee802_11_defs.h"
+#if defined(CONFIG_AP) || defined(HOSTAPD)
+#include <netpacket/packet.h>
+#include <linux/filter.h>
+#include "radiotap.h"
+#include "radiotap_iter.h"
+#endif /* CONFIG_AP || HOSTAPD */
+
+#ifdef CONFIG_AP
+
+#include "../hostapd/hostapd_defs.h"
+
+#ifndef ETH_P_ALL
+#define ETH_P_ALL 0x0003
+#endif
+
+#endif /* CONFIG_AP */
+
+#ifdef HOSTAPD
+#include "../../hostapd/hostapd.h"
+#include "../../hostapd/sta_flags.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 */
+
+#endif /* HOSTAPD */
+
+
#ifndef IFF_LOWER_UP
#define IFF_LOWER_UP 0x10000 /* driver signals L1 up */
#endif
#define IF_OPER_UP 6
#endif
+enum ieee80211_msg_type {
+ ieee80211_msg_normal = 0,
+ ieee80211_msg_tx_callback_ack = 1,
+ ieee80211_msg_tx_callback_fail = 2,
+};
+
+struct i802_bss {
+ struct i802_bss *next;
+ int ifindex;
+ unsigned int beacon_set:1;
+};
struct wpa_driver_nl80211_data {
void *ctx;
- int wext_event_sock;
- int ioctl_sock;
+ int link_event_sock;
+ int ioctl_sock; /* socket for ioctl() use */
char ifname[IFNAMSIZ + 1];
int ifindex;
int if_removed;
struct wpa_driver_capa capa;
int has_capability;
- int we_version_compiled;
int operstate;
- char mlmedev[IFNAMSIZ + 1];
-
int scan_complete_events;
struct nl_handle *nl_handle;
int associated;
u8 ssid[32];
size_t ssid_len;
+ int nlmode;
+ int ap_scan_as_station;
+
+ int beacon_int;
+ int monitor_sock;
+ int monitor_ifidx;
+
+#ifdef CONFIG_AP
+ unsigned int beacon_set:1;
+#endif /* CONFIG_AP */
+
+#ifdef HOSTAPD
+ struct hostapd_data *hapd;
+
+ int eapol_sock; /* socket for EAPOL frames */
+
+ int default_if_indices[16];
+ int *if_indices;
+ int num_if_indices;
+
+ struct i802_bss bss;
+
+ int last_freq;
+ int last_freq_ht;
+#endif /* HOSTAPD */
};
static void wpa_driver_nl80211_scan_timeout(void *eloop_ctx,
void *timeout_ctx);
-static int wpa_driver_nl80211_set_mode(struct wpa_driver_nl80211_data *drv,
- int mode);
-static int wpa_driver_nl80211_get_range(void *priv);
+static int wpa_driver_nl80211_set_mode(void *priv, int mode);
static int
wpa_driver_nl80211_finish_drv_init(struct wpa_driver_nl80211_data *drv);
+#ifdef CONFIG_AP
+static void nl80211_remove_iface(struct wpa_driver_nl80211_data *drv,
+ int ifidx);
+#endif /* CONFIG_AP */
+
+#ifdef HOSTAPD
+static void add_ifidx(struct wpa_driver_nl80211_data *drv, int ifidx);
+static void del_ifidx(struct wpa_driver_nl80211_data *drv, int ifidx);
+static struct i802_bss * get_bss(struct wpa_driver_nl80211_data *drv,
+ int ifindex);
+static void nl80211_remove_iface(struct wpa_driver_nl80211_data *drv,
+ int ifidx);
+static int i802_set_freq(void *priv, struct hostapd_freq_params *freq);
+static int i802_del_beacon(struct wpa_driver_nl80211_data *drv);
+#endif /* HOSTAPD */
+
/* nl80211 code */
static int ack_handler(struct nl_msg *msg, void *arg)
return NL_SKIP;
}
+
+static int no_seq_check(struct nl_msg *msg, void *arg)
+{
+ return NL_OK;
+}
+
+
static int send_and_recv_msgs(struct wpa_driver_nl80211_data *drv,
struct nl_msg *msg,
int (*valid_handler)(struct nl_msg *, void *),
}
+#ifdef HOSTAPD
+static int get_ifhwaddr(struct wpa_driver_nl80211_data *drv,
+ const char *ifname, u8 *addr)
+{
+ struct ifreq ifr;
+
+ os_memset(&ifr, 0, sizeof(ifr));
+ os_strlcpy(ifr.ifr_name, ifname, IFNAMSIZ);
+ if (ioctl(drv->ioctl_sock, SIOCGIFHWADDR, &ifr)) {
+ wpa_printf(MSG_ERROR, "%s: ioctl(SIOCGIFHWADDR): %d (%s)",
+ ifname, errno, strerror(errno));
+ return -1;
+ }
+
+ if (ifr.ifr_hwaddr.sa_family != ARPHRD_ETHER) {
+ wpa_printf(MSG_ERROR, "%s: Invalid HW-addr family 0x%04x",
+ ifname, ifr.ifr_hwaddr.sa_family);
+ return -1;
+ }
+ os_memcpy(addr, ifr.ifr_hwaddr.sa_data, ETH_ALEN);
+
+ return 0;
+}
+
+
+static int set_ifhwaddr(struct wpa_driver_nl80211_data *drv,
+ const char *ifname, const u8 *addr)
+{
+ struct ifreq ifr;
+
+ os_memset(&ifr, 0, sizeof(ifr));
+ os_strlcpy(ifr.ifr_name, ifname, IFNAMSIZ);
+ os_memcpy(ifr.ifr_hwaddr.sa_data, addr, ETH_ALEN);
+ ifr.ifr_hwaddr.sa_family = ARPHRD_ETHER;
+
+ if (ioctl(drv->ioctl_sock, SIOCSIFHWADDR, &ifr)) {
+ wpa_printf(MSG_DEBUG, "%s: ioctl(SIOCSIFHWADDR): %d (%s)",
+ ifname, errno, strerror(errno));
+ return -1;
+ }
+
+ return 0;
+}
+#endif /* HOSTAPD */
+
+
static int wpa_driver_nl80211_send_oper_ifla(
struct wpa_driver_nl80211_data *drv,
int linkmode, int operstate)
RTA_LENGTH(sizeof(char));
}
- wpa_printf(MSG_DEBUG, "WEXT: Operstate: linkmode=%d, operstate=%d",
+ wpa_printf(MSG_DEBUG, "nl80211: Operstate: linkmode=%d, operstate=%d",
linkmode, operstate);
- ret = send(drv->wext_event_sock, &req, req.hdr.nlmsg_len, 0);
+ ret = send(drv->link_event_sock, &req, req.hdr.nlmsg_len, 0);
if (ret < 0) {
- wpa_printf(MSG_DEBUG, "WEXT: Sending operstate IFLA failed: "
- "%s (assume operstate is not supported)",
+ wpa_printf(MSG_DEBUG, "nl80211: Sending operstate IFLA failed:"
+ " %s (assume operstate is not supported)",
strerror(errno));
}
}
+#ifndef NO_WEXT
static int wpa_driver_nl80211_set_auth_param(
struct wpa_driver_nl80211_data *drv, int idx, u32 value)
{
return ret;
}
+#endif /* NO_WEXT */
static int wpa_driver_nl80211_get_bssid(void *priv, u8 *bssid)
}
-static int wpa_driver_nl80211_event_wireless_michaelmicfailure(
- void *ctx, const char *ev, size_t len)
-{
- const struct iw_michaelmicfailure *mic;
- union wpa_event_data data;
-
- if (len < sizeof(*mic))
- return -1;
-
- mic = (const struct iw_michaelmicfailure *) ev;
-
- wpa_printf(MSG_DEBUG, "Michael MIC failure wireless event: "
- "flags=0x%x src_addr=" MACSTR, mic->flags,
- MAC2STR(mic->src_addr.sa_data));
-
- os_memset(&data, 0, sizeof(data));
- data.michael_mic_failure.unicast = !(mic->flags & IW_MICFAILURE_GROUP);
- wpa_supplicant_event(ctx, EVENT_MICHAEL_MIC_FAILURE, &data);
-
- return 0;
-}
-
-
-static void wpa_driver_nl80211_event_wireless(struct wpa_driver_nl80211_data *drv,
- void *ctx, char *data, int len)
-{
- struct iw_event iwe_buf, *iwe = &iwe_buf;
- char *pos, *end, *custom;
-
- 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);
- wpa_printf(MSG_DEBUG, "Wireless event: cmd=0x%x len=%d",
- iwe->cmd, iwe->len);
- if (iwe->len <= IW_EV_LCP_LEN)
- return;
-
- custom = pos + IW_EV_POINT_LEN;
- if (drv->we_version_compiled > 18 &&
- (iwe->cmd == IWEVMICHAELMICFAILURE ||
- iwe->cmd == IWEVCUSTOM ||
- iwe->cmd == IWEVASSOCREQIE ||
- iwe->cmd == IWEVASSOCRESPIE ||
- iwe->cmd == IWEVPMKIDCAND)) {
- /* 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 IWEVMICHAELMICFAILURE:
- wpa_driver_nl80211_event_wireless_michaelmicfailure(
- ctx, custom, iwe->u.data.length);
- break;
- }
-
- pos += iwe->len;
- }
-}
-
-
+#ifndef HOSTAPD
static void wpa_driver_nl80211_event_link(struct wpa_driver_nl80211_data *drv,
void *ctx, char *buf, size_t len,
int del)
rta_len = RTA_ALIGN(sizeof(struct rtattr));
while (RTA_OK(attr, attrlen)) {
- if (attr->rta_type == IFLA_WIRELESS) {
- wpa_driver_nl80211_event_wireless(
- drv, ctx, ((char *) attr) + rta_len,
- attr->rta_len - rta_len);
- } else if (attr->rta_type == IFLA_IFNAME) {
+ if (attr->rta_type == IFLA_IFNAME) {
wpa_driver_nl80211_event_link(
drv, ctx,
((char *) attr) + rta_len,
}
-static void wpa_driver_nl80211_event_receive_wext(int sock, void *eloop_ctx,
+static void wpa_driver_nl80211_event_receive_link(int sock, void *eloop_ctx,
void *sock_ctx)
{
char buf[8192];
}
-static int no_seq_check(struct nl_msg *msg, void *arg)
-{
- return NL_OK;
-}
-
-
static void mlme_event_auth(struct wpa_driver_nl80211_data *drv,
const u8 *frame, size_t len)
{
status = le_to_host16(mgmt->u.assoc_resp.status_code);
if (status != WLAN_STATUS_SUCCESS) {
- wpa_printf(MSG_DEBUG, "nl80211: Association failed: status "
- "code %d", status);
- /* TODO: notify SME so that things like SA Query and comeback
- * time can be implemented */
+ os_memset(&event, 0, sizeof(event));
+ if (len > 24 + sizeof(mgmt->u.assoc_resp)) {
+ event.assoc_reject.resp_ies =
+ (u8 *) mgmt->u.assoc_resp.variable;
+ event.assoc_reject.resp_ies_len =
+ len - 24 - sizeof(mgmt->u.assoc_resp);
+ }
+ event.assoc_reject.status_code = status;
+
+ wpa_supplicant_event(drv->ctx, EVENT_ASSOC_REJECT, &event);
return;
}
if (len > 24 + sizeof(mgmt->u.assoc_resp)) {
event.assoc_info.resp_ies = (u8 *) mgmt->u.assoc_resp.variable;
event.assoc_info.resp_ies_len =
- len - 24 - sizeof(mgmt->u.assoc_req);
+ len - 24 - sizeof(mgmt->u.assoc_resp);
}
wpa_supplicant_event(drv->ctx, EVENT_ASSOC, &event);
}
}
+#endif /* HOSTAPD */
+
+
+static void mlme_event_michael_mic_failure(struct wpa_driver_nl80211_data *drv,
+ struct nlattr *tb[])
+{
+ union wpa_event_data data;
+
+ wpa_printf(MSG_DEBUG, "nl80211: MLME event Michael MIC failure");
+ os_memset(&data, 0, sizeof(data));
+ if (tb[NL80211_ATTR_MAC]) {
+ wpa_hexdump(MSG_DEBUG, "nl80211: Source MAC address",
+ nla_data(tb[NL80211_ATTR_MAC]),
+ nla_len(tb[NL80211_ATTR_MAC]));
+ data.michael_mic_failure.src = nla_data(tb[NL80211_ATTR_MAC]);
+ }
+ if (tb[NL80211_ATTR_KEY_SEQ]) {
+ wpa_hexdump(MSG_DEBUG, "nl80211: TSC",
+ nla_data(tb[NL80211_ATTR_KEY_SEQ]),
+ nla_len(tb[NL80211_ATTR_KEY_SEQ]));
+ }
+ if (tb[NL80211_ATTR_KEY_TYPE]) {
+ enum nl80211_key_type key_type =
+ nla_get_u32(tb[NL80211_ATTR_KEY_TYPE]);
+ wpa_printf(MSG_DEBUG, "nl80211: Key Type %d", key_type);
+ if (key_type == NL80211_KEYTYPE_PAIRWISE)
+ data.michael_mic_failure.unicast = 1;
+ } else
+ data.michael_mic_failure.unicast = 1;
+
+ if (tb[NL80211_ATTR_KEY_IDX]) {
+ u8 key_id = nla_get_u8(tb[NL80211_ATTR_KEY_IDX]);
+ wpa_printf(MSG_DEBUG, "nl80211: Key Id %d", key_id);
+ }
+
+ wpa_supplicant_event(drv->ctx, EVENT_MICHAEL_MIC_FAILURE, &data);
+}
+
static int process_event(struct nl_msg *msg, void *arg)
{
}
}
+ if (drv->ap_scan_as_station &&
+ (gnlh->cmd == NL80211_CMD_NEW_SCAN_RESULTS ||
+ gnlh->cmd == NL80211_CMD_SCAN_ABORTED)) {
+ wpa_driver_nl80211_set_mode(drv, IEEE80211_MODE_AP);
+ drv->ap_scan_as_station = 0;
+ }
+
switch (gnlh->cmd) {
case NL80211_CMD_NEW_SCAN_RESULTS:
wpa_printf(MSG_DEBUG, "nl80211: New scan results available");
drv->ctx);
wpa_supplicant_event(drv->ctx, EVENT_SCAN_RESULTS, NULL);
break;
+#ifndef HOSTAPD
case NL80211_CMD_AUTHENTICATE:
case NL80211_CMD_ASSOCIATE:
case NL80211_CMD_DEAUTHENTICATE:
case NL80211_CMD_DISASSOCIATE:
mlme_event(drv, gnlh->cmd, tb[NL80211_ATTR_FRAME]);
break;
+#endif /* HOSTAPD */
+ case NL80211_CMD_MICHAEL_MIC_FAILURE:
+ mlme_event_michael_mic_failure(drv, tb);
+ break;
default:
wpa_printf(MSG_DEBUG, "nl80211: Ignored unknown event "
"(cmd=%d)", gnlh->cmd);
}
-static int wpa_driver_nl80211_get_ifflags_ifname(struct wpa_driver_nl80211_data *drv,
- const char *ifname, int *flags)
+static int hostapd_set_iface_flags(struct wpa_driver_nl80211_data *drv,
+ const char *ifname, int dev_up)
{
struct ifreq ifr;
+ if (drv->ioctl_sock < 0)
+ return -1;
+
os_memset(&ifr, 0, sizeof(ifr));
os_strlcpy(ifr.ifr_name, ifname, IFNAMSIZ);
- if (ioctl(drv->ioctl_sock, SIOCGIFFLAGS, (caddr_t) &ifr) < 0) {
+
+ if (ioctl(drv->ioctl_sock, SIOCGIFFLAGS, &ifr) != 0) {
perror("ioctl[SIOCGIFFLAGS]");
+ wpa_printf(MSG_DEBUG, "Could not read interface flags (%s)",
+ ifname);
return -1;
}
- *flags = ifr.ifr_flags & 0xffff;
- return 0;
-}
-
-
-/**
- * wpa_driver_nl80211_get_ifflags - Get interface flags (SIOCGIFFLAGS)
- * @drv: driver_nl80211 private data
- * @flags: Pointer to returned flags value
- * Returns: 0 on success, -1 on failure
- */
-static int wpa_driver_nl80211_get_ifflags(struct wpa_driver_nl80211_data *drv,
- int *flags)
-{
- return wpa_driver_nl80211_get_ifflags_ifname(drv, drv->ifname, flags);
-}
-
-static int wpa_driver_nl80211_set_ifflags_ifname(
- struct wpa_driver_nl80211_data *drv,
- const char *ifname, int flags)
-{
- struct ifreq ifr;
+ if (dev_up) {
+ 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;
+ }
- os_memset(&ifr, 0, sizeof(ifr));
- os_strlcpy(ifr.ifr_name, ifname, IFNAMSIZ);
- ifr.ifr_flags = flags & 0xffff;
- if (ioctl(drv->ioctl_sock, SIOCSIFFLAGS, (caddr_t) &ifr) < 0) {
- perror("SIOCSIFFLAGS");
+ if (ioctl(drv->ioctl_sock, SIOCSIFFLAGS, &ifr) != 0) {
+ perror("ioctl[SIOCSIFFLAGS]");
return -1;
}
- return 0;
-}
-
-/**
- * wpa_driver_nl80211_set_ifflags - Set interface flags (SIOCSIFFLAGS)
- * @drv: driver_nl80211 private data
- * @flags: New value for flags
- * Returns: 0 on success, -1 on failure
- */
-static int wpa_driver_nl80211_set_ifflags(struct wpa_driver_nl80211_data *drv,
- int flags)
-{
- return wpa_driver_nl80211_set_ifflags_ifname(drv, drv->ifname, flags);
+ return 0;
}
msg = nlmsg_alloc();
if (!msg)
- goto nla_put_failure;
+ return -ENOMEM;
alpha2[0] = alpha2_arg[0];
alpha2[1] = alpha2_arg[1];
}
+#ifndef HOSTAPD
struct wiphy_info_data {
int max_scan_ssids;
int ap_supported;
if (wpa_driver_nl80211_get_info(drv, &info))
return;
drv->has_capability = 1;
+ /* 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.max_scan_ssids = info.max_scan_ssids;
if (info.ap_supported)
drv->capa.flags |= WPA_DRIVER_FLAGS_AP;
}
+#endif /* HOSTAPD */
-/**
- * wpa_driver_nl80211_init - Initialize nl80211 driver interface
- * @ctx: context to be used when calling wpa_supplicant functions,
- * e.g., wpa_supplicant_event()
- * @ifname: interface name, e.g., wlan0
- * Returns: Pointer to private data, %NULL on failure
- */
-static void * wpa_driver_nl80211_init(void *ctx, const char *ifname)
+static int wpa_driver_nl80211_init_nl(struct wpa_driver_nl80211_data *drv,
+ void *ctx)
{
- int s, ret;
- struct sockaddr_nl local;
- struct wpa_driver_nl80211_data *drv;
+ int ret;
- drv = os_zalloc(sizeof(*drv));
- if (drv == NULL)
- return NULL;
- drv->ctx = ctx;
- os_strlcpy(drv->ifname, ifname, sizeof(drv->ifname));
+ /* Initialize generic netlink and nl80211 */
drv->nl_cb = nl_cb_alloc(NL_CB_DEFAULT);
if (drv->nl_cb == NULL) {
goto err3;
}
+#ifdef CONFIG_LIBNL20
+ if (genl_ctrl_alloc_cache(drv->nl_handle, &drv->nl_cache) < 0) {
+ wpa_printf(MSG_ERROR, "nl80211: Failed to allocate generic "
+ "netlink cache");
+ goto err3;
+ }
+#else /* CONFIG_LIBNL20 */
drv->nl_cache = genl_ctrl_alloc_cache(drv->nl_handle);
if (drv->nl_cache == NULL) {
wpa_printf(MSG_ERROR, "nl80211: Failed to allocate generic "
"netlink cache");
goto err3;
}
+#endif /* CONFIG_LIBNL20 */
+
drv->nl80211 = genl_ctrl_search_by_name(drv->nl_cache, "nl80211");
if (drv->nl80211 == NULL) {
ret, strerror(-ret));
goto err4;
}
- drv->capa.flags |= WPA_DRIVER_FLAGS_SME;
eloop_register_read_sock(nl_socket_get_fd(drv->nl_handle),
wpa_driver_nl80211_event_receive, drv, ctx);
- drv->ioctl_sock = socket(PF_INET, SOCK_DGRAM, 0);
- if (drv->ioctl_sock < 0) {
- perror("socket(PF_INET,SOCK_DGRAM)");
- goto err5;
- }
+ return 0;
+
+err4:
+ nl_cache_free(drv->nl_cache);
+err3:
+ nl_handle_destroy(drv->nl_handle);
+err2:
+ nl_cb_put(drv->nl_cb);
+err1:
+ return -1;
+}
+
+
+static int wpa_driver_nl80211_init_link_events(
+ struct wpa_driver_nl80211_data *drv)
+{
+#ifdef HOSTAPD
+ return 0;
+#else /* HOSTAPD */
+ int s;
+ struct sockaddr_nl local;
s = socket(PF_NETLINK, SOCK_RAW, NETLINK_ROUTE);
if (s < 0) {
perror("socket(PF_NETLINK,SOCK_RAW,NETLINK_ROUTE)");
- goto err6;
+ return -1;
}
os_memset(&local, 0, sizeof(local));
if (bind(s, (struct sockaddr *) &local, sizeof(local)) < 0) {
perror("bind(netlink)");
close(s);
- goto err6;
+ return -1;
}
- eloop_register_read_sock(s, wpa_driver_nl80211_event_receive_wext, drv,
- ctx);
- drv->wext_event_sock = s;
+ eloop_register_read_sock(s, wpa_driver_nl80211_event_receive_link, drv,
+ drv->ctx);
+ drv->link_event_sock = s;
- if (wpa_driver_nl80211_finish_drv_init(drv))
- goto err7;
+ return 0;
+#endif /* HOSTAPD */
+}
+
+
+/**
+ * wpa_driver_nl80211_init - Initialize nl80211 driver interface
+ * @ctx: context to be used when calling wpa_supplicant functions,
+ * e.g., wpa_supplicant_event()
+ * @ifname: interface name, e.g., wlan0
+ * Returns: Pointer to private data, %NULL on failure
+ */
+static void * wpa_driver_nl80211_init(void *ctx, const char *ifname)
+{
+ struct wpa_driver_nl80211_data *drv;
+
+ drv = os_zalloc(sizeof(*drv));
+ if (drv == NULL)
+ return NULL;
+ drv->ctx = ctx;
+ os_strlcpy(drv->ifname, ifname, sizeof(drv->ifname));
+ drv->monitor_ifidx = -1;
+ drv->monitor_sock = -1;
+ drv->link_event_sock = -1;
+ drv->ioctl_sock = -1;
+
+ if (wpa_driver_nl80211_init_nl(drv, ctx)) {
+ os_free(drv);
+ return NULL;
+ }
+
+ drv->capa.flags |= WPA_DRIVER_FLAGS_SME;
+
+ drv->ioctl_sock = socket(PF_INET, SOCK_DGRAM, 0);
+ if (drv->ioctl_sock < 0) {
+ perror("socket(PF_INET,SOCK_DGRAM)");
+ goto failed;
+ }
+
+ if (wpa_driver_nl80211_init_link_events(drv) ||
+ wpa_driver_nl80211_finish_drv_init(drv))
+ goto failed;
return drv;
-err7:
- eloop_unregister_read_sock(drv->wext_event_sock);
- close(drv->wext_event_sock);
-err6:
- close(drv->ioctl_sock);
-err5:
+failed:
+ if (drv->link_event_sock >= 0) {
+ eloop_unregister_read_sock(drv->link_event_sock);
+ close(drv->link_event_sock);
+ }
+ if (drv->ioctl_sock >= 0)
+ close(drv->ioctl_sock);
+
genl_family_put(drv->nl80211);
-err4:
nl_cache_free(drv->nl_cache);
-err3:
nl_handle_destroy(drv->nl_handle);
-err2:
nl_cb_put(drv->nl_cb);
-err1:
+
os_free(drv);
return NULL;
}
static int
wpa_driver_nl80211_finish_drv_init(struct wpa_driver_nl80211_data *drv)
{
- int flags;
-
drv->ifindex = if_nametoindex(drv->ifname);
- if (wpa_driver_nl80211_set_mode(drv, 0) < 0) {
+#ifndef HOSTAPD
+ if (wpa_driver_nl80211_set_mode(drv, IEEE80211_MODE_INFRA) < 0) {
wpa_printf(MSG_DEBUG, "nl80211: Could not configure driver to "
"use managed mode");
}
- if (wpa_driver_nl80211_get_ifflags(drv, &flags) != 0) {
- wpa_printf(MSG_ERROR, "Could not get interface '%s' flags",
- drv->ifname);
+ if (hostapd_set_iface_flags(drv, drv->ifname, 1)) {
+ wpa_printf(MSG_ERROR, "Could not set interface '%s' "
+ "UP", drv->ifname);
return -1;
}
- if (!(flags & IFF_UP)) {
- if (wpa_driver_nl80211_set_ifflags(drv, flags | IFF_UP) != 0) {
- wpa_printf(MSG_ERROR, "Could not set interface '%s' "
- "UP", drv->ifname);
- return -1;
- }
- }
-
- wpa_driver_nl80211_get_range(drv);
wpa_driver_nl80211_capa(drv);
wpa_driver_nl80211_send_oper_ifla(drv, 1, IF_OPER_DORMANT);
+#endif /* HOSTAPD */
return 0;
}
+#ifdef HOSTAPD
+static void wpa_driver_nl80211_free_bss(struct wpa_driver_nl80211_data *drv)
+{
+ struct i802_bss *bss, *prev;
+ bss = drv->bss.next;
+ while (bss) {
+ prev = bss;
+ bss = bss->next;
+ os_free(bss);
+ }
+}
+#endif /* HOSTAPD */
+
+
/**
* wpa_driver_nl80211_deinit - Deinitialize nl80211 driver interface
* @priv: Pointer to private nl80211 data from wpa_driver_nl80211_init()
static void wpa_driver_nl80211_deinit(void *priv)
{
struct wpa_driver_nl80211_data *drv = priv;
- int flags;
- eloop_cancel_timeout(wpa_driver_nl80211_scan_timeout, drv, drv->ctx);
+#if defined(CONFIG_AP) || defined(HOSTAPD)
+ if (drv->monitor_ifidx >= 0)
+ nl80211_remove_iface(drv, drv->monitor_ifidx);
+ if (drv->monitor_sock >= 0) {
+ eloop_unregister_read_sock(drv->monitor_sock);
+ close(drv->monitor_sock);
+ }
+#endif /* CONFIG_AP || HOSTAPD */
+
+#ifdef HOSTAPD
+ 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);
+
+ if (drv->eapol_sock >= 0) {
+ eloop_unregister_read_sock(drv->eapol_sock);
+ close(drv->eapol_sock);
+ }
+
+ if (drv->if_indices != drv->default_if_indices)
+ os_free(drv->if_indices);
+ wpa_driver_nl80211_free_bss(drv);
+#else /* HOSTAPD */
+#ifndef NO_WEXT
wpa_driver_nl80211_set_auth_param(drv, IW_AUTH_DROP_UNENCRYPTED, 0);
+#endif /* NO_WEXT */
wpa_driver_nl80211_send_oper_ifla(priv, 0, IF_OPER_UP);
- eloop_unregister_read_sock(drv->wext_event_sock);
+ if (drv->link_event_sock >= 0) {
+ eloop_unregister_read_sock(drv->link_event_sock);
+ close(drv->link_event_sock);
+ }
+#endif /* HOSTAPD */
+
+ eloop_cancel_timeout(wpa_driver_nl80211_scan_timeout, drv, drv->ctx);
- if (wpa_driver_nl80211_get_ifflags(drv, &flags) == 0)
- (void) wpa_driver_nl80211_set_ifflags(drv, flags & ~IFF_UP);
- wpa_driver_nl80211_set_mode(drv, 0);
+ (void) hostapd_set_iface_flags(drv, drv->ifname, 0);
+ wpa_driver_nl80211_set_mode(drv, IEEE80211_MODE_INFRA);
- close(drv->wext_event_sock);
- close(drv->ioctl_sock);
+ if (drv->ioctl_sock >= 0)
+ close(drv->ioctl_sock);
eloop_unregister_read_sock(nl_socket_get_fd(drv->nl_handle));
genl_family_put(drv->nl80211);
/**
* wpa_driver_nl80211_scan_timeout - Scan timeout to report scan completion
- * @eloop_ctx: Unused
+ * @eloop_ctx: Driver private data
* @timeout_ctx: ctx argument given to wpa_driver_nl80211_init()
*
* This function can be used as registered timeout when starting a scan to
*/
static void wpa_driver_nl80211_scan_timeout(void *eloop_ctx, void *timeout_ctx)
{
+ struct wpa_driver_nl80211_data *drv = eloop_ctx;
+ if (drv->ap_scan_as_station) {
+ wpa_driver_nl80211_set_mode(drv, IEEE80211_MODE_AP);
+ drv->ap_scan_as_station = 0;
+ }
wpa_printf(MSG_DEBUG, "Scan timeout - try to get results");
wpa_supplicant_event(timeout_ctx, EVENT_SCAN_RESULTS, NULL);
}
/**
* wpa_driver_nl80211_scan - Request the driver to initiate scan
- * @priv: Pointer to private wext data from wpa_driver_nl80211_init()
+ * @priv: Pointer to private driver data from wpa_driver_nl80211_init()
* @params: Scan parameters
* Returns: 0 on success, -1 on failure
*/
if (ret) {
wpa_printf(MSG_DEBUG, "nl80211: Scan trigger failed: ret=%d "
"(%s)", ret, strerror(-ret));
- goto nla_put_failure;
- }
+#ifdef HOSTAPD
+ if (drv->nlmode == NL80211_IFTYPE_AP) {
+ /*
+ * mac80211 does not allow scan requests in AP mode, so
+ * try to do this in station mode.
+ */
+ if (wpa_driver_nl80211_set_mode(drv,
+ IEEE80211_MODE_INFRA))
+ goto nla_put_failure;
+
+ if (wpa_driver_nl80211_scan(drv, params)) {
+ wpa_driver_nl80211_set_mode(drv,
+ IEEE80211_MODE_AP);
+ goto nla_put_failure;
+ }
+
+ /* Restore AP mode when processing scan results */
+ drv->ap_scan_as_station = 1;
+ ret = 0;
+ } else
+ goto nla_put_failure;
+#else /* HOSTAPD */
+ goto nla_put_failure;
+#endif /* HOSTAPD */
+ }
/* Not all drivers generate "scan completed" wireless event, so try to
* read results after a timeout. */
}
-static int wpa_driver_nl80211_get_range(void *priv)
-{
- struct wpa_driver_nl80211_data *drv = priv;
- struct iw_range *range;
- struct iwreq iwr;
- int minlen;
- size_t buflen;
-
- /*
- * Use larger buffer than struct iw_range in order to allow the
- * structure to grow in the future.
- */
- buflen = sizeof(struct iw_range) + 500;
- range = os_zalloc(buflen);
- if (range == NULL)
- return -1;
-
- os_memset(&iwr, 0, sizeof(iwr));
- os_strlcpy(iwr.ifr_name, drv->ifname, IFNAMSIZ);
- iwr.u.data.pointer = (caddr_t) range;
- iwr.u.data.length = buflen;
-
- minlen = ((char *) &range->enc_capa) - (char *) range +
- sizeof(range->enc_capa);
-
- if (ioctl(drv->ioctl_sock, SIOCGIWRANGE, &iwr) < 0) {
- perror("ioctl[SIOCGIWRANGE]");
- os_free(range);
- return -1;
- } else if (iwr.u.data.length >= minlen &&
- range->we_version_compiled >= 18) {
- wpa_printf(MSG_DEBUG, "SIOCGIWRANGE: WE(compiled)=%d "
- "WE(source)=%d enc_capa=0x%x",
- range->we_version_compiled,
- range->we_version_source,
- range->enc_capa);
- drv->has_capability = 1;
- drv->we_version_compiled = range->we_version_compiled;
- if (range->enc_capa & IW_ENC_CAPA_WPA) {
- drv->capa.key_mgmt |= WPA_DRIVER_CAPA_KEY_MGMT_WPA |
- WPA_DRIVER_CAPA_KEY_MGMT_WPA_PSK;
- }
- if (range->enc_capa & IW_ENC_CAPA_WPA2) {
- drv->capa.key_mgmt |= 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;
- if (range->enc_capa & IW_ENC_CAPA_CIPHER_TKIP)
- drv->capa.enc |= WPA_DRIVER_CAPA_ENC_TKIP;
- if (range->enc_capa & IW_ENC_CAPA_CIPHER_CCMP)
- drv->capa.enc |= WPA_DRIVER_CAPA_ENC_CCMP;
- wpa_printf(MSG_DEBUG, " capabilities: key_mgmt 0x%x enc 0x%x",
- drv->capa.key_mgmt, drv->capa.enc);
- } else {
- wpa_printf(MSG_DEBUG, "SIOCGIWRANGE: too old (short) data - "
- "assuming WPA is not supported");
- }
-
- os_free(range);
- return 0;
-}
-
-
-static int wpa_driver_nl80211_set_key(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)
+static int nl_set_encr(int ifindex, struct wpa_driver_nl80211_data *drv,
+ 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 wpa_driver_nl80211_data *drv = priv;
- int err;
struct nl_msg *msg;
+ int ret;
- wpa_printf(MSG_DEBUG, "%s: alg=%d addr=%p key_idx=%d set_tx=%d "
- "seq_len=%lu key_len=%lu",
- __func__, alg, addr, key_idx, set_tx,
+ wpa_printf(MSG_DEBUG, "%s: ifindex=%d alg=%d addr=%p key_idx=%d "
+ "set_tx=%d seq_len=%lu key_len=%lu",
+ __func__, ifindex, alg, addr, key_idx, set_tx,
(unsigned long) seq_len, (unsigned long) key_len);
msg = nlmsg_alloc();
- if (msg == NULL)
- return -1;
+ if (!msg)
+ return -ENOMEM;
if (alg == WPA_ALG_NONE) {
- genlmsg_put(msg, 0, 0, genl_family_get_id(drv->nl80211), 0, 0,
- NL80211_CMD_DEL_KEY, 0);
+ 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);
+ 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);
switch (alg) {
case WPA_ALG_WEP:
case WPA_ALG_CCMP:
NLA_PUT_U32(msg, NL80211_ATTR_KEY_CIPHER, 0x000FAC04);
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 (seq)
+ NLA_PUT(msg, NL80211_ATTR_KEY_SEQ, seq_len, seq);
+
if (addr && os_memcmp(addr, "\xff\xff\xff\xff\xff\xff", ETH_ALEN) != 0)
{
wpa_printf(MSG_DEBUG, " addr=" MACSTR, MAC2STR(addr));
NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, addr);
}
NLA_PUT_U8(msg, NL80211_ATTR_KEY_IDX, key_idx);
- NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex);
+ NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, ifindex);
- err = send_and_recv_msgs(drv, msg, NULL, NULL);
- if (err) {
- wpa_printf(MSG_DEBUG, "nl80211: set_key failed; err=%d", err);
- return -1;
- }
+ ret = send_and_recv_msgs(drv, msg, NULL, NULL);
+ if (ret == -ENOENT && alg == WPA_ALG_NONE)
+ ret = 0;
+ if (ret)
+ wpa_printf(MSG_DEBUG, "nl80211: set_key failed; err=%d %s)",
+ ret, strerror(-ret));
- if (set_tx && alg != WPA_ALG_NONE) {
- msg = nlmsg_alloc();
- if (msg == NULL)
- return -1;
+ /*
+ * If we failed or don't need to set the default TX key (below),
+ * we're done here.
+ */
+ if (ret || !set_tx || alg == WPA_ALG_NONE)
+ return ret;
+#ifdef HOSTAPD /* FIX: is this needed? */
+ if (addr)
+ return ret;
+#endif /* HOSTAPD */
- 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, key_idx);
- NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex);
- NLA_PUT_FLAG(msg, NL80211_ATTR_KEY_DEFAULT);
+ msg = nlmsg_alloc();
+ if (!msg)
+ return -ENOMEM;
- err = send_and_recv_msgs(drv, msg, NULL, NULL);
- if (err) {
- wpa_printf(MSG_DEBUG, "nl80211: set default key "
- "failed; err=%d", err);
- return -1;
- }
- }
+ 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, key_idx);
+ 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);
- return 0;
+ ret = send_and_recv_msgs(drv, msg, NULL, NULL);
+ if (ret == -ENOENT)
+ ret = 0;
+ if (ret)
+ wpa_printf(MSG_DEBUG, "nl80211: set_key default failed; "
+ "err=%d %s)", ret, strerror(-ret));
+ return ret;
nla_put_failure:
return -ENOBUFS;
}
+static int wpa_driver_nl80211_set_key(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 wpa_driver_nl80211_data *drv = priv;
+ return nl_set_encr(drv->ifindex, drv, alg, addr, key_idx, set_tx, seq,
+ seq_len, key, key_len);
+}
+
+
static int wpa_driver_nl80211_mlme(struct wpa_driver_nl80211_data *drv,
const u8 *addr, int cmd, u16 reason_code)
{
void *priv, struct wpa_driver_auth_params *params)
{
struct wpa_driver_nl80211_data *drv = priv;
- int ret = -1;
+ int ret = -1, i;
struct nl_msg *msg;
enum nl80211_auth_type type;
wpa_printf(MSG_DEBUG, "nl80211: Authenticate (ifindex=%d)",
drv->ifindex);
+
+ for (i = 0; i < 4; i++) {
+ if (!params->wep_key[i])
+ continue;
+ wpa_driver_nl80211_set_key(drv, WPA_ALG_WEP, NULL, i,
+ i == params->wep_tx_keyidx, NULL, 0,
+ params->wep_key[i],
+ params->wep_key_len[i]);
+ }
+
genlmsg_put(msg, 0, 0, genl_family_get_id(drv->nl80211), 0, 0,
NL80211_CMD_AUTHENTICATE, 0);
}
-#ifdef CONFIG_AP
-static int wpa_driver_nl80211_set_freq2(
- struct wpa_driver_nl80211_data *drv,
- struct wpa_driver_associate_params *params)
+#if defined(CONFIG_AP) || defined(HOSTAPD)
+
+struct phy_info_arg {
+ u16 *num_modes;
+ struct hostapd_hw_modes *modes;
+};
+
+static int phy_info_handler(struct nl_msg *msg, void *arg)
{
- struct nl_msg *msg;
+ struct nlattr *tb_msg[NL80211_ATTR_MAX + 1];
+ struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg));
+ struct phy_info_arg *phy_info = arg;
+
+ struct nlattr *tb_band[NL80211_BAND_ATTR_MAX + 1];
+
+ struct nlattr *tb_freq[NL80211_FREQUENCY_ATTR_MAX + 1];
+ static struct nla_policy freq_policy[NL80211_FREQUENCY_ATTR_MAX + 1] = {
+ [NL80211_FREQUENCY_ATTR_FREQ] = { .type = NLA_U32 },
+ [NL80211_FREQUENCY_ATTR_DISABLED] = { .type = NLA_FLAG },
+ [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 },
+ };
- msg = nlmsg_alloc();
- if (!msg)
- return -1;
+ struct nlattr *tb_rate[NL80211_BITRATE_ATTR_MAX + 1];
+ static struct nla_policy rate_policy[NL80211_BITRATE_ATTR_MAX + 1] = {
+ [NL80211_BITRATE_ATTR_RATE] = { .type = NLA_U32 },
+ [NL80211_BITRATE_ATTR_2GHZ_SHORTPREAMBLE] = { .type = NLA_FLAG },
+ };
- genlmsg_put(msg, 0, 0, genl_family_get_id(drv->nl80211), 0, 0,
- NL80211_CMD_SET_WIPHY, 0);
+ struct nlattr *nl_band;
+ struct nlattr *nl_freq;
+ struct nlattr *nl_rate;
+ int rem_band, rem_freq, rem_rate;
+ struct hostapd_hw_modes *mode;
+ int idx, mode_is_set;
- NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex);
+ nla_parse(tb_msg, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0),
+ genlmsg_attrlen(gnlh, 0), NULL);
+
+ if (!tb_msg[NL80211_ATTR_WIPHY_BANDS])
+ return NL_SKIP;
- /* TODO: proper channel configuration */
- NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_FREQ, 2437);
+ nla_for_each_nested(nl_band, tb_msg[NL80211_ATTR_WIPHY_BANDS], rem_band) {
+ mode = realloc(phy_info->modes, (*phy_info->num_modes + 1) * sizeof(*mode));
+ if (!mode)
+ return NL_SKIP;
+ phy_info->modes = mode;
- if (send_and_recv_msgs(drv, msg, NULL, NULL) == 0)
- return 0;
-nla_put_failure:
- return -1;
-}
+ mode_is_set = 0;
+ mode = &phy_info->modes[*(phy_info->num_modes)];
+ memset(mode, 0, sizeof(*mode));
+ *(phy_info->num_modes) += 1;
-static int wpa_driver_nl80211_ap(struct wpa_driver_nl80211_data *drv,
- struct wpa_driver_associate_params *params)
-{
- if (wpa_driver_nl80211_set_mode(drv, params->mode) ||
- wpa_driver_nl80211_set_freq2(drv, params))
- return -1;
+ nla_parse(tb_band, NL80211_BAND_ATTR_MAX, nla_data(nl_band),
+ nla_len(nl_band), NULL);
- /* TODO: setup monitor interface (and add code somewhere to remove this
- * when AP mode is stopped; associate with mode != 2 or drv_deinit) */
- /* TODO: setup beacon */
+ if (tb_band[NL80211_BAND_ATTR_HT_CAPA]) {
+ mode->ht_capab = nla_get_u16(
+ tb_band[NL80211_BAND_ATTR_HT_CAPA]);
+ }
- return 0;
-}
-#endif /* CONFIG_AP */
+ 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);
+ if (!tb_freq[NL80211_FREQUENCY_ATTR_FREQ])
+ continue;
+ mode->num_channels++;
+ }
+
+ mode->channels = calloc(mode->num_channels, sizeof(struct hostapd_channel_data));
+ if (!mode->channels)
+ return NL_SKIP;
+ idx = 0;
-static int wpa_driver_nl80211_associate(
- void *priv, struct wpa_driver_associate_params *params)
+ 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);
+ if (!tb_freq[NL80211_FREQUENCY_ATTR_FREQ])
+ continue;
+
+ mode->channels[idx].freq = nla_get_u32(tb_freq[NL80211_FREQUENCY_ATTR_FREQ]);
+ mode->channels[idx].flag = 0;
+
+ if (!mode_is_set) {
+ /* crude heuristic */
+ if (mode->channels[idx].freq < 4000)
+ mode->mode = HOSTAPD_MODE_IEEE80211B;
+ else
+ mode->mode = HOSTAPD_MODE_IEEE80211A;
+ mode_is_set = 1;
+ }
+
+ /* crude heuristic */
+ if (mode->channels[idx].freq < 4000)
+ if (mode->channels[idx].freq == 2484)
+ mode->channels[idx].chan = 14;
+ else
+ mode->channels[idx].chan = (mode->channels[idx].freq - 2407) / 5;
+ else
+ mode->channels[idx].chan = mode->channels[idx].freq/5 - 1000;
+
+ if (tb_freq[NL80211_FREQUENCY_ATTR_DISABLED])
+ mode->channels[idx].flag |=
+ HOSTAPD_CHAN_DISABLED;
+ if (tb_freq[NL80211_FREQUENCY_ATTR_PASSIVE_SCAN])
+ mode->channels[idx].flag |=
+ HOSTAPD_CHAN_PASSIVE_SCAN;
+ if (tb_freq[NL80211_FREQUENCY_ATTR_NO_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++;
+ }
+
+ nla_for_each_nested(nl_rate, tb_band[NL80211_BAND_ATTR_RATES], rem_rate) {
+ nla_parse(tb_rate, NL80211_BITRATE_ATTR_MAX, nla_data(nl_rate),
+ nla_len(nl_rate), rate_policy);
+ if (!tb_rate[NL80211_BITRATE_ATTR_RATE])
+ continue;
+ mode->num_rates++;
+ }
+
+ mode->rates = calloc(mode->num_rates, sizeof(struct hostapd_rate_data));
+ if (!mode->rates)
+ return NL_SKIP;
+
+ idx = 0;
+
+ nla_for_each_nested(nl_rate, tb_band[NL80211_BAND_ATTR_RATES], rem_rate) {
+ nla_parse(tb_rate, NL80211_BITRATE_ATTR_MAX, nla_data(nl_rate),
+ nla_len(nl_rate), rate_policy);
+ if (!tb_rate[NL80211_BITRATE_ATTR_RATE])
+ continue;
+ mode->rates[idx].rate = nla_get_u32(tb_rate[NL80211_BITRATE_ATTR_RATE]);
+
+ /* crude heuristic */
+ if (mode->mode == HOSTAPD_MODE_IEEE80211B &&
+ mode->rates[idx].rate > 200)
+ mode->mode = HOSTAPD_MODE_IEEE80211G;
+
+ if (tb_rate[NL80211_BITRATE_ATTR_2GHZ_SHORTPREAMBLE])
+ mode->rates[idx].flags |= HOSTAPD_RATE_PREAMBLE2;
+
+ idx++;
+ }
+ }
+
+ return NL_SKIP;
+}
+
+static struct hostapd_hw_modes *
+wpa_driver_nl80211_add_11b(struct hostapd_hw_modes *modes, u16 *num_modes)
{
- struct wpa_driver_nl80211_data *drv = priv;
- int ret = -1;
- struct nl_msg *msg;
+ u16 m;
+ struct hostapd_hw_modes *mode11g = NULL, *nmodes, *mode;
+ int i, mode11g_idx = -1;
-#ifdef CONFIG_AP
- if (params->mode == 2)
- return wpa_driver_nl80211_ap(drv, params);
-#endif /* CONFIG_AP */
+ /* If only 802.11g mode is included, use it to construct matching
+ * 802.11b mode data. */
- wpa_driver_nl80211_set_auth_param(drv, IW_AUTH_DROP_UNENCRYPTED,
- params->drop_unencrypted);
+ 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;
+ }
- drv->associated = 0;
+ if (mode11g_idx < 0)
+ return modes; /* 2.4 GHz band not supported at all */
- msg = nlmsg_alloc();
- if (!msg)
- return -1;
+ nmodes = os_realloc(modes, (*num_modes + 1) * sizeof(*nmodes));
+ if (nmodes == NULL)
+ return modes; /* Could not add 802.11b mode */
- wpa_printf(MSG_DEBUG, "nl80211: Associate (ifindex=%d)",
- drv->ifindex);
- genlmsg_put(msg, 0, 0, genl_family_get_id(drv->nl80211), 0, 0,
- NL80211_CMD_ASSOCIATE, 0);
+ mode = &nmodes[*num_modes];
+ os_memset(mode, 0, sizeof(*mode));
+ (*num_modes)++;
+ modes = nmodes;
- NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex);
- if (params->bssid) {
- wpa_printf(MSG_DEBUG, " * bssid=" MACSTR,
- MAC2STR(params->bssid));
- NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, params->bssid);
+ 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 */
}
- if (params->freq) {
- wpa_printf(MSG_DEBUG, " * freq=%d", params->freq);
- NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_FREQ, params->freq);
+ 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 */
}
- if (params->ssid) {
- wpa_hexdump_ascii(MSG_DEBUG, " * SSID",
- params->ssid, params->ssid_len);
- NLA_PUT(msg, NL80211_ATTR_SSID, params->ssid_len,
- params->ssid);
- if (params->ssid_len > sizeof(drv->ssid))
- goto nla_put_failure;
- os_memcpy(drv->ssid, params->ssid, params->ssid_len);
- drv->ssid_len = params->ssid_len;
+
+ 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;
}
- wpa_hexdump(MSG_DEBUG, " * IEs", params->wpa_ie, params->wpa_ie_len);
- if (params->wpa_ie)
- NLA_PUT(msg, NL80211_ATTR_IE, params->wpa_ie_len,
- params->wpa_ie);
- ret = send_and_recv_msgs(drv, msg, NULL, NULL);
- msg = NULL;
- if (ret) {
- wpa_printf(MSG_DEBUG, "nl80211: MLME command failed: ret=%d "
- "(%s)", ret, strerror(-ret));
- goto nla_put_failure;
+ if (mode->num_rates == 0) {
+ os_free(mode->channels);
+ os_free(mode->rates);
+ (*num_modes)--;
+ return modes; /* No 802.11b rates */
}
- ret = 0;
- wpa_printf(MSG_DEBUG, "nl80211: Association request send "
- "successfully");
-nla_put_failure:
- nlmsg_free(msg);
- return ret;
+ wpa_printf(MSG_DEBUG, "nl80211: Added 802.11b mode based on 802.11g "
+ "information");
+
+ return modes;
}
-/**
- * wpa_driver_nl80211_set_mode - Set wireless mode (infra/adhoc), SIOCSIWMODE
- * @drv: Pointer to private driver data from wpa_driver_nl80211_init()
- * @mode: 0 = infra/BSS (associate with an AP), 1 = adhoc/IBSS
- * Returns: 0 on success, -1 on failure
- */
-static int wpa_driver_nl80211_set_mode(struct wpa_driver_nl80211_data *drv,
- int mode)
+static struct hostapd_hw_modes *
+wpa_driver_nl80211_get_hw_feature_data(void *priv, u16 *num_modes, u16 *flags)
{
- int ret = -1, flags;
+ struct wpa_driver_nl80211_data *drv = priv;
struct nl_msg *msg;
- int nlmode;
+ struct phy_info_arg result = {
+ .num_modes = num_modes,
+ .modes = NULL,
+ };
- switch (mode) {
- case 0:
- nlmode = NL80211_IFTYPE_STATION;
- break;
- case 1:
- nlmode = NL80211_IFTYPE_ADHOC;
- break;
- case 2:
- nlmode = NL80211_IFTYPE_AP;
- break;
- default:
- return -1;
- }
+ *num_modes = 0;
+ *flags = 0;
msg = nlmsg_alloc();
if (!msg)
- return -1;
+ return NULL;
genlmsg_put(msg, 0, 0, genl_family_get_id(drv->nl80211), 0,
- 0, NL80211_CMD_SET_INTERFACE, 0);
+ 0, NL80211_CMD_GET_WIPHY, 0);
+
NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex);
- NLA_PUT_U32(msg, NL80211_ATTR_IFTYPE, nlmode);
- ret = send_and_recv_msgs(drv, msg, NULL, NULL);
- if (!ret)
- return 0;
- else
- goto try_again;
+ if (send_and_recv_msgs(drv, msg, phy_info_handler, &result) == 0)
+ return wpa_driver_nl80211_add_11b(result.modes, num_modes);
+ nla_put_failure:
+ return NULL;
+}
-nla_put_failure:
- wpa_printf(MSG_ERROR, "nl80211: Failed to set interface mode: %d (%s)",
- ret, strerror(-ret));
- return -1;
-try_again:
- /* mac80211 doesn't allow mode changes while the device is up, so
- * take the device down, try to set the mode again, and bring the
- * device back up.
- */
- if (wpa_driver_nl80211_get_ifflags(drv, &flags) == 0) {
- (void) wpa_driver_nl80211_set_ifflags(drv, flags & ~IFF_UP);
+static int wpa_driver_nl80211_send_frame(struct wpa_driver_nl80211_data *drv,
+ const void *data, size_t len,
+ int encrypt)
+{
+ __u8 rtap_hdr[] = {
+ 0x00, 0x00, /* radiotap version */
+ 0x0e, 0x00, /* radiotap length */
+ 0x02, 0xc0, 0x00, 0x00, /* bmap: flags, tx and rx flags */
+ IEEE80211_RADIOTAP_F_FRAG, /* F_FRAG (fragment if required) */
+ 0x00, /* padding */
+ 0x00, 0x00, /* RX and TX flags to indicate that */
+ 0x00, 0x00, /* this is the injected frame directly */
+ };
+ struct iovec iov[2] = {
+ {
+ .iov_base = &rtap_hdr,
+ .iov_len = sizeof(rtap_hdr),
+ },
+ {
+ .iov_base = (void *) data,
+ .iov_len = len,
+ }
+ };
+ struct msghdr msg = {
+ .msg_name = NULL,
+ .msg_namelen = 0,
+ .msg_iov = iov,
+ .msg_iovlen = 2,
+ .msg_control = NULL,
+ .msg_controllen = 0,
+ .msg_flags = 0,
+ };
- /* Try to set the mode again while the interface is down */
- msg = nlmsg_alloc();
- if (!msg)
- return -1;
+ if (encrypt)
+ rtap_hdr[8] |= IEEE80211_RADIOTAP_F_WEP;
- 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, drv->ifindex);
- NLA_PUT_U32(msg, NL80211_ATTR_IFTYPE, nlmode);
- ret = send_and_recv_msgs(drv, msg, NULL, NULL);
- if (ret) {
- wpa_printf(MSG_ERROR, "Failed to set interface %s "
- "mode(try_again): %d (%s)",
- drv->ifname, ret, strerror(-ret));
- }
+ return sendmsg(drv->monitor_sock, &msg, 0);
+}
+
+
+static int wpa_driver_nl80211_send_mlme(void *priv, const u8 *data,
+ size_t data_len)
+{
+ struct wpa_driver_nl80211_data *drv = priv;
+ struct ieee80211_mgmt *mgmt;
+ int do_not_encrypt = 0;
+ u16 fc;
- /* Ignore return value of get_ifflags to ensure that the device
- * is always up like it was before this function was called.
+ mgmt = (struct ieee80211_mgmt *) data;
+ fc = le_to_host16(mgmt->frame_control);
+
+ if (WLAN_FC_GET_TYPE(fc) == WLAN_FC_TYPE_MGMT &&
+ WLAN_FC_GET_STYPE(fc) == WLAN_FC_STYPE_AUTH) {
+ /*
+ * Only one of the authentication frame types is encrypted.
+ * In order for static WEP encryption to work properly (i.e.,
+ * to not encrypt the frame), we need to tell mac80211 about
+ * the frames that must not be encrypted.
*/
- (void) wpa_driver_nl80211_get_ifflags(drv, &flags);
- (void) wpa_driver_nl80211_set_ifflags(drv, flags | IFF_UP);
+ 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 ret;
+ return wpa_driver_nl80211_send_frame(drv, data, data_len,
+ !do_not_encrypt);
}
-static int wpa_driver_nl80211_get_capa(void *priv,
- struct wpa_driver_capa *capa)
+static int wpa_driver_nl80211_set_beacon_iface(int ifindex, void *priv,
+ const u8 *head, size_t head_len,
+ const u8 *tail, size_t tail_len,
+ int dtim_period)
{
struct wpa_driver_nl80211_data *drv = priv;
- if (!drv->has_capability)
+ struct nl_msg *msg;
+ u8 cmd = NL80211_CMD_NEW_BEACON;
+ int ret;
+ int beacon_set;
+#ifdef HOSTAPD
+ struct i802_bss *bss;
+
+ bss = get_bss(drv, ifindex);
+ if (bss == NULL)
+ return -ENOENT;
+ beacon_set = bss->beacon_set;
+#else /* HOSTAPD */
+ beacon_set = drv->beacon_set;
+#endif /* HOSTAPD */
+
+ msg = nlmsg_alloc();
+ if (!msg)
+ return -ENOMEM;
+
+ wpa_printf(MSG_DEBUG, "nl80211: Set beacon (beacon_set=%d)",
+ beacon_set);
+ if (beacon_set)
+ cmd = NL80211_CMD_SET_BEACON;
+
+ genlmsg_put(msg, 0, 0, genl_family_get_id(drv->nl80211), 0,
+ 0, cmd, 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, ifindex);
+ if (!drv->beacon_int)
+ drv->beacon_int = 100;
+ NLA_PUT_U32(msg, NL80211_ATTR_BEACON_INTERVAL, drv->beacon_int);
+ NLA_PUT_U32(msg, NL80211_ATTR_DTIM_PERIOD, dtim_period);
+
+ ret = send_and_recv_msgs(drv, msg, NULL, NULL);
+ if (ret) {
+ wpa_printf(MSG_DEBUG, "nl80211: Beacon set failed: %d (%s)",
+ ret, strerror(-ret));
+ } else {
+#ifdef HOSTAPD
+ bss->beacon_set = 1;
+#else /* HOSTAPD */
+ drv->beacon_set = 1;
+#endif /* HOSTAPD */
+ }
+ return ret;
+ nla_put_failure:
+ return -ENOBUFS;
+}
+
+
+static int wpa_driver_nl80211_set_beacon_int(void *priv, int value)
+{
+ struct wpa_driver_nl80211_data *drv = priv;
+ struct nl_msg *msg;
+
+ drv->beacon_int = value;
+
+#ifdef HOSTAPD
+ if (!drv->bss.beacon_set)
+ return 0;
+#else /* HOSTAPD */
+ if (!drv->beacon_set)
+ return 0;
+#endif /* HOSTAPD */
+
+ msg = nlmsg_alloc();
+ if (!msg)
+ return -ENOMEM;
+
+ wpa_printf(MSG_DEBUG, "nl80211: Set beacon interval %d", value);
+ 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, drv->ifindex);
+
+ NLA_PUT_U32(msg, NL80211_ATTR_BEACON_INTERVAL, value);
+
+ return send_and_recv_msgs(drv, msg, NULL, NULL);
+ nla_put_failure:
+ return -ENOBUFS;
+}
+
+
+static int wpa_driver_nl80211_set_freq(struct wpa_driver_nl80211_data *drv,
+ int freq, int ht_enabled,
+ int sec_channel_offset)
+{
+ struct nl_msg *msg;
+ int ret;
+
+ msg = nlmsg_alloc();
+ if (!msg)
+ 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, drv->ifindex);
+ NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_FREQ, freq);
+ if (ht_enabled) {
+ switch (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;
+ }
+ }
+
+ ret = send_and_recv_msgs(drv, msg, NULL, NULL);
+ if (ret == 0)
+ return 0;
+ wpa_printf(MSG_DEBUG, "nl80211: Failed to set channel (freq=%d): "
+ "%d (%s)", freq, ret, strerror(-ret));
+nla_put_failure:
+ return -1;
+}
+
+#endif /* CONFIG_AP || HOSTAPD */
+
+
+#ifdef CONFIG_AP
+
+static int wpa_driver_nl80211_set_beacon(void *priv,
+ const u8 *head, size_t head_len,
+ const u8 *tail, size_t tail_len,
+ int dtim_period)
+{
+ struct wpa_driver_nl80211_data *drv = priv;
+ return wpa_driver_nl80211_set_beacon_iface(drv->ifindex, priv,
+ head, head_len,
+ tail, tail_len,
+ dtim_period);
+}
+
+#endif /* CONFIG_AP */
+
+#if defined(CONFIG_AP) || defined(HOSTAPD)
+
+static void nl80211_remove_iface(struct wpa_driver_nl80211_data *drv,
+ int ifidx)
+{
+ struct nl_msg *msg;
+
+#ifdef HOSTAPD
+ /* stop listening for EAPOL on this interface */
+ del_ifidx(drv, ifidx);
+#endif /* HOSTAPD */
+
+ msg = nlmsg_alloc();
+ if (!msg)
+ goto nla_put_failure;
+
+ 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 (send_and_recv_msgs(drv, msg, NULL, NULL) == 0)
+ return;
+ nla_put_failure:
+ wpa_printf(MSG_ERROR, "Failed to remove interface (ifidx=%d).\n",
+ ifidx);
+}
+
+
+static int nl80211_create_iface(struct wpa_driver_nl80211_data *drv,
+ const char *ifname, enum nl80211_iftype iftype,
+ const u8 *addr)
+{
+ struct nl_msg *msg, *flags = NULL;
+ int ifidx;
+ int ret = -ENOBUFS;
+
+ msg = nlmsg_alloc();
+ if (!msg)
+ return -1;
+
+ 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, drv->ifindex);
+ NLA_PUT_STRING(msg, NL80211_ATTR_IFNAME, ifname);
+ NLA_PUT_U32(msg, NL80211_ATTR_IFTYPE, iftype);
+
+ if (iftype == NL80211_IFTYPE_MONITOR) {
+ int err;
+
+ flags = nlmsg_alloc();
+ if (!flags)
+ goto nla_put_failure;
+
+ NLA_PUT_FLAG(flags, NL80211_MNTR_FLAG_COOK_FRAMES);
+
+ err = nla_put_nested(msg, NL80211_ATTR_MNTR_FLAGS, flags);
+
+ nlmsg_free(flags);
+
+ if (err)
+ goto nla_put_failure;
+ }
+
+ ret = send_and_recv_msgs(drv, msg, NULL, NULL);
+ if (ret) {
+ nla_put_failure:
+ wpa_printf(MSG_ERROR, "Failed to create interface %s.",
+ ifname);
+ return ret;
+ }
+
+ ifidx = if_nametoindex(ifname);
+
+ if (ifidx <= 0)
+ return -1;
+
+#ifdef HOSTAPD
+ /* start listening for EAPOL on this interface */
+ add_ifidx(drv, ifidx);
+
+ if (addr && iftype == NL80211_IFTYPE_AP &&
+ set_ifhwaddr(drv, ifname, addr)) {
+ nl80211_remove_iface(drv, ifidx);
+ return -1;
+ }
+#endif /* HOSTAPD */
+
+ return ifidx;
+}
+
+#endif /* CONFIG_AP || HOSTAPD */
+
+#ifdef CONFIG_AP
+
+void ap_tx_status(void *ctx, const u8 *addr,
+ const u8 *buf, size_t len, int ack);
+void ap_rx_from_unknown_sta(void *ctx, const u8 *addr);
+void ap_mgmt_rx(void *ctx, u8 *buf, size_t len, u16 stype,
+ struct hostapd_frame_info *fi);
+void ap_mgmt_tx_cb(void *ctx, u8 *buf, size_t len, u16 stype, int ok);
+
+#endif /* CONFIG_AP */
+
+#if defined(CONFIG_AP) || defined(HOSTAPD)
+
+static void handle_tx_callback(void *ctx, u8 *buf, size_t len, int ok)
+{
+ struct ieee80211_hdr *hdr;
+ u16 fc, type, stype;
+
+ hdr = (struct ieee80211_hdr *) buf;
+ fc = le_to_host16(hdr->frame_control);
+
+ type = WLAN_FC_GET_TYPE(fc);
+ stype = WLAN_FC_GET_STYPE(fc);
+
+ switch (type) {
+ case WLAN_FC_TYPE_MGMT:
+ wpa_printf(MSG_DEBUG, "MGMT (TX callback) %s",
+ ok ? "ACK" : "fail");
+#ifdef HOSTAPD
+ hostapd_mgmt_tx_cb(ctx, buf, len, stype, ok);
+#else /* HOSTAPD */
+ ap_mgmt_tx_cb(ctx, buf, len, stype, ok);
+#endif /* HOSTAPD */
+ break;
+ case WLAN_FC_TYPE_CTRL:
+ wpa_printf(MSG_DEBUG, "CTRL (TX callback) %s",
+ ok ? "ACK" : "fail");
+ break;
+ case WLAN_FC_TYPE_DATA:
+#ifdef HOSTAPD
+ hostapd_tx_status(ctx, hdr->addr1, buf, len, ok);
+#else /* HOSTAPD */
+ ap_tx_status(ctx, hdr->addr1, buf, len, ok);
+#endif /* HOSTAPD */
+ break;
+ default:
+ wpa_printf(MSG_DEBUG, "unknown TX callback frame type %d",
+ type);
+ break;
+ }
+}
+
+
+static void handle_frame(struct wpa_driver_nl80211_data *drv,
+ u8 *buf, size_t len,
+ struct hostapd_frame_info *hfi,
+ enum ieee80211_msg_type msg_type)
+{
+ struct ieee80211_hdr *hdr;
+ u16 fc, type, stype;
+ size_t data_len = len;
+ u8 *bssid;
+ void *ctx = drv->ctx;
+#ifdef HOSTAPD
+ struct hostapd_iface *iface = drv->hapd->iface;
+ struct hostapd_data *hapd = NULL;
+ int broadcast_bssid = 0;
+ size_t i;
+#endif /* HOSTAPD */
+
+ /*
+ * PS-Poll frames are 16 bytes. All other frames are
+ * 24 bytes or longer.
+ */
+ if (len < 16)
+ return;
+
+ hdr = (struct ieee80211_hdr *) buf;
+ fc = le_to_host16(hdr->frame_control);
+
+ type = WLAN_FC_GET_TYPE(fc);
+ stype = WLAN_FC_GET_STYPE(fc);
+
+ switch (type) {
+ case WLAN_FC_TYPE_DATA:
+ if (len < 24)
+ return;
+ switch (fc & (WLAN_FC_FROMDS | WLAN_FC_TODS)) {
+ case WLAN_FC_TODS:
+ bssid = hdr->addr1;
+ break;
+ case WLAN_FC_FROMDS:
+ bssid = hdr->addr2;
+ break;
+ default:
+ /* discard */
+ return;
+ }
+ break;
+ case WLAN_FC_TYPE_CTRL:
+ /* discard non-ps-poll frames */
+ if (stype != WLAN_FC_STYPE_PSPOLL)
+ return;
+ bssid = hdr->addr1;
+ break;
+ case WLAN_FC_TYPE_MGMT:
+ bssid = hdr->addr3;
+ break;
+ default:
+ /* discard */
+ return;
+ }
+
+#ifdef HOSTAPD
+ /* find interface frame belongs to */
+ for (i = 0; i < iface->num_bss; i++) {
+ if (memcmp(bssid, iface->bss[i]->own_addr, ETH_ALEN) == 0) {
+ hapd = iface->bss[i];
+ break;
+ }
+ }
+
+ if (hapd == NULL) {
+ hapd = iface->bss[0];
+
+ if (bssid[0] != 0xff || bssid[1] != 0xff ||
+ bssid[2] != 0xff || bssid[3] != 0xff ||
+ bssid[4] != 0xff || bssid[5] != 0xff) {
+ /*
+ * Unknown BSSID - drop frame if this is not from
+ * passive scanning or a beacon (at least ProbeReq
+ * frames to other APs may be allowed through RX
+ * filtering in the wlan hw/driver)
+ */
+ if ((type != WLAN_FC_TYPE_MGMT ||
+ stype != WLAN_FC_STYPE_BEACON))
+ return;
+ } else
+ broadcast_bssid = 1;
+ }
+ ctx = hapd;
+#endif /* HOSTAPD */
+
+ switch (msg_type) {
+ case ieee80211_msg_normal:
+ /* continue processing */
+ break;
+ case ieee80211_msg_tx_callback_ack:
+ handle_tx_callback(ctx, buf, data_len, 1);
+ return;
+ case ieee80211_msg_tx_callback_fail:
+ handle_tx_callback(ctx, buf, data_len, 0);
+ return;
+ }
+
+ switch (type) {
+ case WLAN_FC_TYPE_MGMT:
+ if (stype != WLAN_FC_STYPE_BEACON &&
+ stype != WLAN_FC_STYPE_PROBE_REQ)
+ wpa_printf(MSG_MSGDUMP, "MGMT");
+#ifdef HOSTAPD
+ if (broadcast_bssid) {
+ for (i = 0; i < iface->num_bss; i++)
+ hostapd_mgmt_rx(iface->bss[i], buf, data_len,
+ stype, hfi);
+ } else
+ hostapd_mgmt_rx(hapd, buf, data_len, stype, hfi);
+#else /* HOSTAPD */
+ ap_mgmt_rx(drv->ctx, buf, data_len, stype, hfi);
+#endif /* HOSTAPD */
+ break;
+ case WLAN_FC_TYPE_CTRL:
+ /* can only get here with PS-Poll frames */
+ wpa_printf(MSG_DEBUG, "CTRL");
+#ifdef HOSTAPD
+ hostapd_rx_from_unknown_sta(drv->hapd, hdr->addr2);
+#else /* HOSTAPD */
+ ap_rx_from_unknown_sta(drv->ctx, hdr->addr2);
+#endif /* HOSTAPD */
+ break;
+ case WLAN_FC_TYPE_DATA:
+#ifdef HOSTAPD
+ hostapd_rx_from_unknown_sta(drv->hapd, hdr->addr2);
+#else /* HOSTAPD */
+ ap_rx_from_unknown_sta(drv->ctx, hdr->addr2);
+#endif /* HOSTAPD */
+ break;
+ }
+}
+
+
+static void handle_monitor_read(int sock, void *eloop_ctx, void *sock_ctx)
+{
+ struct wpa_driver_nl80211_data *drv = eloop_ctx;
+ int len;
+ unsigned char buf[3000];
+ struct ieee80211_radiotap_iterator iter;
+ int ret;
+ struct hostapd_frame_info hfi;
+ int injected = 0, failed = 0, msg_type, rxflags = 0;
+
+ len = recv(sock, buf, sizeof(buf), 0);
+ if (len < 0) {
+ perror("recv");
+ return;
+ }
+
+ if (ieee80211_radiotap_iterator_init(&iter, (void*)buf, len)) {
+ printf("received invalid radiotap frame\n");
+ return;
+ }
+
+ memset(&hfi, 0, sizeof(hfi));
+
+ while (1) {
+ ret = ieee80211_radiotap_iterator_next(&iter);
+ if (ret == -ENOENT)
+ break;
+ if (ret) {
+ printf("received invalid radiotap frame (%d)\n", ret);
+ return;
+ }
+ switch (iter.this_arg_index) {
+ case IEEE80211_RADIOTAP_FLAGS:
+ if (*iter.this_arg & IEEE80211_RADIOTAP_F_FCS)
+ len -= 4;
+ break;
+ case IEEE80211_RADIOTAP_RX_FLAGS:
+ rxflags = 1;
+ break;
+ case IEEE80211_RADIOTAP_TX_FLAGS:
+ injected = 1;
+ failed = le_to_host16((*(uint16_t *) iter.this_arg)) &
+ IEEE80211_RADIOTAP_F_TX_FAIL;
+ break;
+ case IEEE80211_RADIOTAP_DATA_RETRIES:
+ break;
+ case IEEE80211_RADIOTAP_CHANNEL:
+ /* TODO convert from freq/flags to channel number
+ hfi.channel = XXX;
+ hfi.phytype = XXX;
+ */
+ break;
+ case IEEE80211_RADIOTAP_RATE:
+ hfi.datarate = *iter.this_arg * 5;
+ break;
+ case IEEE80211_RADIOTAP_DB_ANTSIGNAL:
+ hfi.ssi_signal = *iter.this_arg;
+ break;
+ }
+ }
+
+ if (rxflags && injected)
+ return;
+
+ if (!injected)
+ msg_type = ieee80211_msg_normal;
+ else if (failed)
+ msg_type = ieee80211_msg_tx_callback_fail;
+ else
+ msg_type = ieee80211_msg_tx_callback_ack;
+
+ handle_frame(drv, 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 wpa_driver_nl80211_data *drv)
+{
+ char buf[IFNAMSIZ];
+ struct sockaddr_ll ll;
+ int optval;
+ socklen_t optlen;
+
+ snprintf(buf, IFNAMSIZ, "mon.%s", drv->ifname);
+ buf[IFNAMSIZ - 1] = '\0';
+
+ drv->monitor_ifidx =
+ nl80211_create_iface(drv, buf, NL80211_IFTYPE_MONITOR, NULL);
+
+ if (drv->monitor_ifidx < 0)
+ return -1;
+
+ if (hostapd_set_iface_flags(drv, buf, 1))
+ goto error;
+
+ memset(&ll, 0, sizeof(ll));
+ ll.sll_family = AF_PACKET;
+ ll.sll_ifindex = drv->monitor_ifidx;
+ drv->monitor_sock = socket(PF_PACKET, SOCK_RAW, htons(ETH_P_ALL));
+ if (drv->monitor_sock < 0) {
+ perror("socket[PF_PACKET,SOCK_RAW]");
+ 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");
+ goto error;
+ }
+
+ optlen = sizeof(optval);
+ optval = 20;
+ if (setsockopt
+ (drv->monitor_sock, SOL_SOCKET, SO_PRIORITY, &optval, optlen)) {
+ perror("Failed to set socket priority");
+ goto error;
+ }
+
+ if (eloop_register_read_sock(drv->monitor_sock, handle_monitor_read,
+ drv, NULL)) {
+ printf("Could not register monitor read socket\n");
+ goto error;
+ }
+
+ return 0;
+ error:
+ nl80211_remove_iface(drv, drv->monitor_ifidx);
+ return -1;
+}
+
+#endif /* CONFIG_AP || HOSTAPD */
+
+#ifdef CONFIG_AP
+
+static int wpa_driver_nl80211_ap(struct wpa_driver_nl80211_data *drv,
+ struct wpa_driver_associate_params *params)
+{
+ if (drv->monitor_ifidx < 0 &&
+ nl80211_create_monitor_interface(drv))
+ return -1;
+
+ if (wpa_driver_nl80211_set_mode(drv, params->mode) ||
+ wpa_driver_nl80211_set_freq(drv, params->freq, 0, 0)) {
+ nl80211_remove_iface(drv, drv->monitor_ifidx);
+ drv->monitor_ifidx = -1;
+ return -1;
+ }
+
+ /* TODO: setup monitor interface (and add code somewhere to remove this
+ * when AP mode is stopped; associate with mode != 2 or drv_deinit) */
+
+ return 0;
+}
+#endif /* CONFIG_AP */
+
+
+static int wpa_driver_nl80211_associate(
+ void *priv, struct wpa_driver_associate_params *params)
+{
+ struct wpa_driver_nl80211_data *drv = priv;
+ int ret = -1;
+ struct nl_msg *msg;
+
+#ifdef CONFIG_AP
+ if (params->mode == 2)
+ return wpa_driver_nl80211_ap(drv, params);
+#endif /* CONFIG_AP */
+
+#ifndef NO_WEXT
+ wpa_driver_nl80211_set_auth_param(drv, IW_AUTH_DROP_UNENCRYPTED,
+ params->drop_unencrypted);
+#endif /* NO_WEXT */
+
+ drv->associated = 0;
+
+ msg = nlmsg_alloc();
+ if (!msg)
+ return -1;
+
+ wpa_printf(MSG_DEBUG, "nl80211: Associate (ifindex=%d)",
+ drv->ifindex);
+ genlmsg_put(msg, 0, 0, genl_family_get_id(drv->nl80211), 0, 0,
+ NL80211_CMD_ASSOCIATE, 0);
+
+ NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, drv->ifindex);
+ if (params->bssid) {
+ wpa_printf(MSG_DEBUG, " * bssid=" MACSTR,
+ MAC2STR(params->bssid));
+ NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, params->bssid);
+ }
+ if (params->freq) {
+ wpa_printf(MSG_DEBUG, " * freq=%d", params->freq);
+ NLA_PUT_U32(msg, NL80211_ATTR_WIPHY_FREQ, params->freq);
+ }
+ if (params->ssid) {
+ wpa_hexdump_ascii(MSG_DEBUG, " * SSID",
+ params->ssid, params->ssid_len);
+ NLA_PUT(msg, NL80211_ATTR_SSID, params->ssid_len,
+ params->ssid);
+ if (params->ssid_len > sizeof(drv->ssid))
+ goto nla_put_failure;
+ os_memcpy(drv->ssid, params->ssid, params->ssid_len);
+ drv->ssid_len = params->ssid_len;
+ }
+ wpa_hexdump(MSG_DEBUG, " * IEs", params->wpa_ie, params->wpa_ie_len);
+ if (params->wpa_ie)
+ NLA_PUT(msg, NL80211_ATTR_IE, params->wpa_ie_len,
+ params->wpa_ie);
+
+ ret = send_and_recv_msgs(drv, msg, NULL, NULL);
+ msg = NULL;
+ if (ret) {
+ wpa_printf(MSG_DEBUG, "nl80211: MLME command failed: ret=%d "
+ "(%s)", ret, strerror(-ret));
+ goto nla_put_failure;
+ }
+ ret = 0;
+ wpa_printf(MSG_DEBUG, "nl80211: Association request send "
+ "successfully");
+
+nla_put_failure:
+ nlmsg_free(msg);
+ return ret;
+}
+
+
+static int nl80211_set_mode(struct wpa_driver_nl80211_data *drv,
+ int ifindex, int mode)
+{
+ struct nl_msg *msg;
+ int ret = -ENOBUFS;
+
+ msg = nlmsg_alloc();
+ if (!msg)
+ 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, ifindex);
+ NLA_PUT_U32(msg, NL80211_ATTR_IFTYPE, mode);
+
+ ret = send_and_recv_msgs(drv, msg, NULL, NULL);
+ if (!ret)
+ return 0;
+nla_put_failure:
+ wpa_printf(MSG_DEBUG, "nl80211: Failed to set interface %d to mode %d:"
+ " %d (%s)", ifindex, mode, ret, strerror(-ret));
+ return ret;
+}
+
+
+static int wpa_driver_nl80211_set_mode(void *priv, int mode)
+{
+ struct wpa_driver_nl80211_data *drv = priv;
+ int ret = -1;
+ int nlmode;
+
+ switch (mode) {
+ case 0:
+ nlmode = NL80211_IFTYPE_STATION;
+ break;
+ case 1:
+ nlmode = NL80211_IFTYPE_ADHOC;
+ break;
+ case 2:
+ nlmode = NL80211_IFTYPE_AP;
+ break;
+ default:
+ return -1;
+ }
+
+ if (nl80211_set_mode(drv, drv->ifindex, nlmode) == 0) {
+ drv->nlmode = nlmode;
+ return 0;
+ }
+
+ if (nlmode == drv->nlmode)
+ return 0; /* Already in the requested mode */
+
+ /* mac80211 doesn't allow mode changes while the device is up, so
+ * take the device down, try to set the mode again, and bring the
+ * device back up.
+ */
+ if (hostapd_set_iface_flags(drv, drv->ifname, 0) == 0) {
+ /* Try to set the mode again while the interface is down */
+ ret = nl80211_set_mode(drv, drv->ifindex, nlmode);
+ if (hostapd_set_iface_flags(drv, drv->ifname, 1))
+ ret = -1;
+ }
+
+ if (!ret)
+ drv->nlmode = nlmode;
+
+ return ret;
+}
+
+
+static int wpa_driver_nl80211_get_capa(void *priv,
+ struct wpa_driver_capa *capa)
+{
+ struct wpa_driver_nl80211_data *drv = priv;
+ if (!drv->has_capability)
+ return -1;
+ os_memcpy(capa, &drv->capa, sizeof(*capa));
+ return 0;
+}
+
+
+static int wpa_driver_nl80211_set_operstate(void *priv, int state)
+{
+ struct wpa_driver_nl80211_data *drv = priv;
+
+ wpa_printf(MSG_DEBUG, "%s: operstate %d->%d (%s)",
+ __func__, drv->operstate, state, state ? "UP" : "DORMANT");
+ drv->operstate = state;
+ return wpa_driver_nl80211_send_oper_ifla(
+ drv, -1, state ? IF_OPER_UP : IF_OPER_DORMANT);
+}
+
+
+#ifdef HOSTAPD
+
+static const u8 rfc1042_header[6] = { 0xaa, 0xaa, 0x03, 0x00, 0x00, 0x00 };
+
+
+static struct i802_bss * get_bss(struct wpa_driver_nl80211_data *drv,
+ int ifindex)
+{
+ struct i802_bss *bss = &drv->bss;
+ while (bss) {
+ if (ifindex == bss->ifindex)
+ return bss;
+ bss = bss->next;
+ }
+ wpa_printf(MSG_DEBUG, "nl80211: get_bss(%d) failed", ifindex);
+ return NULL;
+}
+
+
+static void add_ifidx(struct wpa_driver_nl80211_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;
+ return;
+ }
+ }
+
+ if (drv->if_indices != drv->default_if_indices)
+ old = drv->if_indices;
+ else
+ old = NULL;
+
+ drv->if_indices = realloc(old,
+ sizeof(int) * (drv->num_if_indices + 1));
+ if (!drv->if_indices) {
+ if (!old)
+ drv->if_indices = drv->default_if_indices;
+ else
+ drv->if_indices = old;
+ wpa_printf(MSG_ERROR, "Failed to reallocate memory for "
+ "interfaces");
+ wpa_printf(MSG_ERROR, "Ignoring EAPOL on interface %d", ifidx);
+ return;
+ }
+ drv->if_indices[drv->num_if_indices] = ifidx;
+ drv->num_if_indices++;
+}
+
+
+static void del_ifidx(struct wpa_driver_nl80211_data *drv, int ifidx)
+{
+ int i;
+
+ for (i = 0; i < drv->num_if_indices; i++) {
+ if (drv->if_indices[i] == ifidx) {
+ drv->if_indices[i] = 0;
+ break;
+ }
+ }
+}
+
+
+static int have_ifidx(struct wpa_driver_nl80211_data *drv, int ifidx)
+{
+ int i;
+
+ for (i = 0; i < drv->num_if_indices; i++)
+ if (drv->if_indices[i] == ifidx)
+ return 1;
+
+ return 0;
+}
+
+
+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 wpa_driver_nl80211_data *drv = priv;
+ return nl_set_encr(if_nametoindex(iface), drv, alg, addr, key_idx,
+ set_tx, seq, seq_len, key, key_len);
+}
+
+
+static inline int min_int(int a, int b)
+{
+ if (a < b)
+ return a;
+ return b;
+}
+
+
+static int get_key_handler(struct nl_msg *msg, void *arg)
+{
+ 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),
+ genlmsg_attrlen(gnlh, 0), NULL);
+
+ /*
+ * TODO: validate the key index and mac address!
+ * Otherwise, there's a race condition as soon as
+ * the kernel starts sending key notifications.
+ */
+
+ if (tb[NL80211_ATTR_KEY_SEQ])
+ memcpy(arg, nla_data(tb[NL80211_ATTR_KEY_SEQ]),
+ min_int(nla_len(tb[NL80211_ATTR_KEY_SEQ]), 6));
+ return NL_SKIP;
+}
+
+
+static int i802_get_seqnum(const char *iface, void *priv, const u8 *addr,
+ int idx, u8 *seq)
+{
+ struct wpa_driver_nl80211_data *drv = priv;
+ struct nl_msg *msg;
+
+ msg = nlmsg_alloc();
+ if (!msg)
+ return -ENOMEM;
+
+ genlmsg_put(msg, 0, 0, genl_family_get_id(drv->nl80211), 0,
+ 0, NL80211_CMD_GET_KEY, 0);
+
+ 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));
+
+ memset(seq, 0, 6);
+
+ return send_and_recv_msgs(drv, msg, get_key_handler, seq);
+ nla_put_failure:
+ return -ENOBUFS;
+}
+
+
+static int i802_set_rate_sets(void *priv, int *supp_rates, int *basic_rates,
+ int mode)
+{
+ struct wpa_driver_nl80211_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;
+
+ genlmsg_put(msg, 0, 0, genl_family_get_id(drv->nl80211), 0, 0,
+ NL80211_CMD_SET_BSS, 0);
+
+ for (i = 0; i < NL80211_MAX_SUPP_RATES && basic_rates[i] >= 0; i++)
+ rates[rates_len++] = basic_rates[i] / 5;
+
+ 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->ifname));
+
+ return send_and_recv_msgs(drv, msg, NULL, NULL);
+ nla_put_failure:
+ return -ENOBUFS;
+}
+
+
+/* Set kernel driver on given frequency (MHz) */
+static int i802_set_freq(void *priv, struct hostapd_freq_params *freq)
+{
+ struct wpa_driver_nl80211_data *drv = priv;
+ return wpa_driver_nl80211_set_freq(drv, freq->freq, freq->ht_enabled,
+ freq->sec_channel_offset);
+}
+
+
+static int i802_set_rts(void *priv, int rts)
+{
+#ifdef NO_WEXT
+ return -1;
+#else /* NO_WEXT */
+ struct wpa_driver_nl80211_data *drv = priv;
+ struct iwreq iwr;
+
+ memset(&iwr, 0, sizeof(iwr));
+ os_strlcpy(iwr.ifr_name, drv->ifname, IFNAMSIZ);
+ iwr.u.rts.value = rts;
+ iwr.u.rts.fixed = 1;
+
+ if (ioctl(drv->ioctl_sock, SIOCSIWRTS, &iwr) < 0) {
+ perror("ioctl[SIOCSIWRTS]");
+ return -1;
+ }
+
+ return 0;
+#endif /* NO_WEXT */
+}
+
+
+static int i802_set_frag(void *priv, int frag)
+{
+#ifdef NO_WEXT
+ return -1;
+#else /* NO_WEXT */
+ struct wpa_driver_nl80211_data *drv = priv;
+ struct iwreq iwr;
+
+ memset(&iwr, 0, sizeof(iwr));
+ os_strlcpy(iwr.ifr_name, drv->ifname, IFNAMSIZ);
+ iwr.u.frag.value = frag;
+ iwr.u.frag.fixed = 1;
+
+ if (ioctl(drv->ioctl_sock, SIOCSIWFRAG, &iwr) < 0) {
+ perror("ioctl[SIOCSIWFRAG]");
+ return -1;
+ }
+
+ return 0;
+#endif /* NO_WEXT */
+}
+
+
+static int i802_set_retry(void *priv, int short_retry, int long_retry)
+{
+#ifdef NO_WEXT
+ return -1;
+#else /* NO_WEXT */
+ struct wpa_driver_nl80211_data *drv = priv;
+ struct iwreq iwr;
+
+ memset(&iwr, 0, sizeof(iwr));
+ os_strlcpy(iwr.ifr_name, drv->ifname, IFNAMSIZ);
+
+ iwr.u.retry.value = short_retry;
+ iwr.u.retry.flags = IW_RETRY_LIMIT | IW_RETRY_MIN;
+ 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, SIOCSIWRETRY, &iwr) < 0) {
+ perror("ioctl[SIOCSIWRETRY(long)]");
+ return -1;
+ }
+
+ return 0;
+#endif /* NO_WEXT */
+}
+
+
+static int i802_flush(void *priv)
+{
+ struct wpa_driver_nl80211_data *drv = priv;
+ struct nl_msg *msg;
+
+ msg = nlmsg_alloc();
+ if (!msg)
+ return -1;
+
+ genlmsg_put(msg, 0, 0, genl_family_get_id(drv->nl80211), 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->ifname));
+
+ return send_and_recv_msgs(drv, msg, NULL, NULL);
+ nla_put_failure:
+ return -ENOBUFS;
+}
+
+
+static int get_sta_handler(struct nl_msg *msg, void *arg)
+{
+ struct nlattr *tb[NL80211_ATTR_MAX + 1];
+ struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg));
+ struct hostap_sta_driver_data *data = arg;
+ struct nlattr *stats[NL80211_STA_INFO_MAX + 1];
+ static struct nla_policy stats_policy[NL80211_STA_INFO_MAX + 1] = {
+ [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),
+ genlmsg_attrlen(gnlh, 0), NULL);
+
+ /*
+ * TODO: validate the interface and mac address!
+ * Otherwise, there's a race condition as soon as
+ * the kernel starts sending station notifications.
+ */
+
+ if (!tb[NL80211_ATTR_STA_INFO]) {
+ wpa_printf(MSG_DEBUG, "sta stats missing!");
+ return NL_SKIP;
+ }
+ if (nla_parse_nested(stats, NL80211_STA_INFO_MAX,
+ tb[NL80211_ATTR_STA_INFO],
+ stats_policy)) {
+ wpa_printf(MSG_DEBUG, "failed to parse nested attributes!");
+ return NL_SKIP;
+ }
+
+ if (stats[NL80211_STA_INFO_INACTIVE_TIME])
+ data->inactive_msec =
+ nla_get_u32(stats[NL80211_STA_INFO_INACTIVE_TIME]);
+ 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->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;
+}
+
+static int i802_read_sta_data(void *priv, struct hostap_sta_driver_data *data,
+ const u8 *addr)
+{
+ struct wpa_driver_nl80211_data *drv = priv;
+ struct nl_msg *msg;
+
+ os_memset(data, 0, sizeof(*data));
+ msg = nlmsg_alloc();
+ if (!msg)
+ 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->ifname));
+
+ return send_and_recv_msgs(drv, msg, get_sta_handler, data);
+ nla_put_failure:
+ return -ENOBUFS;
+}
+
+
+static int i802_send_eapol(void *priv, const u8 *addr, const u8 *data,
+ size_t data_len, int encrypt, const u8 *own_addr)
+{
+ struct wpa_driver_nl80211_data *drv = priv;
+ struct ieee80211_hdr *hdr;
+ size_t len;
+ u8 *pos;
+ int res;
+#if 0 /* FIX */
+ int qos = sta->flags & WLAN_STA_WME;
+#else
+ int qos = 0;
+#endif
+
+ len = sizeof(*hdr) + (qos ? 2 : 0) + sizeof(rfc1042_header) + 2 +
+ data_len;
+ hdr = os_zalloc(len);
+ if (hdr == NULL) {
+ printf("malloc() failed for i802_send_data(len=%lu)\n",
+ (unsigned long) len);
+ return -1;
+ }
+
+ hdr->frame_control =
+ IEEE80211_FC(WLAN_FC_TYPE_DATA, WLAN_FC_STYPE_DATA);
+ hdr->frame_control |= host_to_le16(WLAN_FC_FROMDS);
+ if (encrypt)
+ hdr->frame_control |= host_to_le16(WLAN_FC_ISWEP);
+#if 0 /* To be enabled if qos determination is added above */
+ if (qos) {
+ hdr->frame_control |=
+ host_to_le16(WLAN_FC_STYPE_QOS_DATA << 4);
+ }
+#endif
+
+ memcpy(hdr->IEEE80211_DA_FROMDS, addr, ETH_ALEN);
+ memcpy(hdr->IEEE80211_BSSID_FROMDS, own_addr, ETH_ALEN);
+ memcpy(hdr->IEEE80211_SA_FROMDS, own_addr, ETH_ALEN);
+ pos = (u8 *) (hdr + 1);
+
+#if 0 /* To be enabled if qos determination is added above */
+ if (qos) {
+ /* add an empty QoS header if needed */
+ pos[0] = 0;
+ pos[1] = 0;
+ pos += 2;
+ }
+#endif
+
+ memcpy(pos, rfc1042_header, sizeof(rfc1042_header));
+ pos += sizeof(rfc1042_header);
+ WPA_PUT_BE16(pos, ETH_P_PAE);
+ pos += 2;
+ memcpy(pos, data, data_len);
+
+ res = wpa_driver_nl80211_send_frame(drv, (u8 *) hdr, len, encrypt);
+ if (res < 0) {
+ wpa_printf(MSG_ERROR, "i802_send_eapol - packet len: %lu - "
+ "failed: %d (%s)",
+ (unsigned long) len, errno, strerror(errno));
+ }
+ free(hdr);
+
+ return res;
+}
+
+
+static int i802_sta_add(const char *ifname, void *priv,
+ struct hostapd_sta_add_params *params)
+{
+ struct wpa_driver_nl80211_data *drv = priv;
+ struct nl_msg *msg;
+ int ret = -ENOBUFS;
+
+ msg = nlmsg_alloc();
+ if (!msg)
+ 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->ifname));
+ 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:
+ return ret;
+}
+
+
+static int i802_sta_remove(void *priv, const u8 *addr)
+{
+ struct wpa_driver_nl80211_data *drv = priv;
+ struct nl_msg *msg;
+ int ret;
+
+ msg = nlmsg_alloc();
+ if (!msg)
+ return -ENOMEM;
+
+ genlmsg_put(msg, 0, 0, genl_family_get_id(drv->nl80211), 0,
+ 0, NL80211_CMD_DEL_STATION, 0);
+
+ NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX,
+ if_nametoindex(drv->ifname));
+ NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, addr);
+
+ ret = send_and_recv_msgs(drv, msg, NULL, NULL);
+ if (ret == -ENOENT)
+ return 0;
+ return ret;
+ nla_put_failure:
+ return -ENOBUFS;
+}
+
+
+static int i802_sta_set_flags(void *priv, const u8 *addr,
+ int total_flags, int flags_or, int flags_and)
+{
+ struct wpa_driver_nl80211_data *drv = priv;
+ struct nl_msg *msg, *flags = NULL;
+
+ msg = nlmsg_alloc();
+ if (!msg)
+ return -ENOMEM;
+
+ flags = nlmsg_alloc();
+ 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);
+
+ NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX,
+ if_nametoindex(drv->ifname));
+ NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, addr);
+
+ if (total_flags & WLAN_STA_AUTHORIZED)
+ NLA_PUT_FLAG(flags, NL80211_STA_FLAG_AUTHORIZED);
+
+ 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;
+
+ nlmsg_free(flags);
+
+ return send_and_recv_msgs(drv, msg, NULL, NULL);
+ nla_put_failure:
+ nlmsg_free(flags);
+ return -ENOBUFS;
+}
+
+
+static int i802_set_tx_queue_params(void *priv, int queue, int aifs,
+ int cw_min, int cw_max, int burst_time)
+{
+ struct wpa_driver_nl80211_data *drv = priv;
+ struct nl_msg *msg;
+ struct nlattr *txq, *params;
+
+ msg = nlmsg_alloc();
+ if (!msg)
return -1;
- os_memcpy(capa, &drv->capa, sizeof(*capa));
+
+ 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->ifname));
+
+ 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;
+
+ 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;
+}
+
+
+static int i802_bss_add(void *priv, const char *ifname, const u8 *bssid)
+{
+ struct wpa_driver_nl80211_data *drv = priv;
+ int ifidx;
+ struct i802_bss *bss;
+
+ bss = os_zalloc(sizeof(*bss));
+ if (bss == NULL)
+ return -1;
+ bss->ifindex = if_nametoindex(ifname);
+
+ ifidx = nl80211_create_iface(priv, ifname, NL80211_IFTYPE_AP, bssid);
+ 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 wpa_driver_nl80211_set_operstate(void *priv, int state)
+static int i802_bss_remove(void *priv, const char *ifname)
{
struct wpa_driver_nl80211_data *drv = priv;
+ struct i802_bss *bss, *prev;
+ int ifindex = if_nametoindex(ifname);
+ nl80211_remove_iface(priv, ifindex);
+ prev = &drv->bss;
+ bss = drv->bss.next;
+ while (bss) {
+ if (ifindex == bss->ifindex) {
+ prev->next = bss->next;
+ os_free(bss);
+ break;
+ }
+ prev = bss;
+ bss = bss->next;
+ }
+ return 0;
+}
- wpa_printf(MSG_DEBUG, "%s: operstate %d->%d (%s)",
- __func__, drv->operstate, state, state ? "UP" : "DORMANT");
- drv->operstate = state;
- return wpa_driver_nl80211_send_oper_ifla(
- drv, -1, state ? IF_OPER_UP : IF_OPER_DORMANT);
+
+static int i802_set_beacon(const char *iface, void *priv,
+ const u8 *head, size_t head_len,
+ const u8 *tail, size_t tail_len, int dtim_period)
+{
+ return wpa_driver_nl80211_set_beacon_iface(if_nametoindex(iface), priv,
+ head, head_len,
+ tail, tail_len,
+ dtim_period);
+}
+
+
+static int i802_del_beacon(struct wpa_driver_nl80211_data *drv)
+{
+ struct nl_msg *msg;
+
+ msg = nlmsg_alloc();
+ if (!msg)
+ 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->ifname));
+
+ return send_and_recv_msgs(drv, msg, NULL, NULL);
+ nla_put_failure:
+ return -ENOBUFS;
+}
+
+
+static int i802_set_bss(void *priv, int cts, int preamble, int slot)
+{
+ struct wpa_driver_nl80211_data *drv = priv;
+ struct nl_msg *msg;
+
+ msg = nlmsg_alloc();
+ if (!msg)
+ return -ENOMEM;
+
+ genlmsg_put(msg, 0, 0, genl_family_get_id(drv->nl80211), 0, 0,
+ NL80211_CMD_SET_BSS, 0);
+
+ 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);
+
+ /* TODO: multi-BSS support */
+ NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, if_nametoindex(drv->ifname));
+
+ return send_and_recv_msgs(drv, msg, NULL, NULL);
+ nla_put_failure:
+ return -ENOBUFS;
+}
+
+
+static int i802_set_cts_protect(void *priv, int value)
+{
+ return i802_set_bss(priv, value, -1, -1);
+}
+
+
+static int i802_set_preamble(void *priv, int value)
+{
+ return i802_set_bss(priv, -1, value, -1);
+}
+
+
+static int i802_set_short_slot_time(void *priv, int value)
+{
+ return i802_set_bss(priv, -1, -1, value);
+}
+
+
+static enum nl80211_iftype i802_if_type(enum hostapd_driver_if_type type)
+{
+ switch (type) {
+ case HOSTAPD_IF_VLAN:
+ return NL80211_IFTYPE_AP_VLAN;
+ }
+ return -1;
+}
+
+
+static int i802_if_add(const char *iface, void *priv,
+ enum hostapd_driver_if_type type, char *ifname,
+ const u8 *addr)
+{
+ if (nl80211_create_iface(priv, ifname, i802_if_type(type), addr) < 0)
+ return -1;
+ return 0;
+}
+
+
+static int i802_if_update(void *priv, enum hostapd_driver_if_type type,
+ char *ifname, const u8 *addr)
+{
+ /* unused at the moment */
+ return -1;
+}
+
+
+static int i802_if_remove(void *priv, enum hostapd_driver_if_type type,
+ const char *ifname, const u8 *addr)
+{
+ nl80211_remove_iface(priv, if_nametoindex(ifname));
+ return 0;
+}
+
+
+static int i802_set_sta_vlan(void *priv, const u8 *addr,
+ const char *ifname, int vlan_id)
+{
+ struct wpa_driver_nl80211_data *drv = priv;
+ struct nl_msg *msg;
+
+ msg = nlmsg_alloc();
+ if (!msg)
+ 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(drv->ifname));
+ NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, addr);
+ NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX,
+ if_nametoindex(ifname));
+
+ return send_and_recv_msgs(drv, msg, NULL, NULL);
+ nla_put_failure:
+ return -ENOBUFS;
+}
+
+
+static void handle_eapol(int sock, void *eloop_ctx, void *sock_ctx)
+{
+ struct wpa_driver_nl80211_data *drv = eloop_ctx;
+ struct sockaddr_ll lladdr;
+ unsigned char buf[3000];
+ int len;
+ socklen_t fromlen = sizeof(lladdr);
+
+ len = recvfrom(sock, buf, sizeof(buf), 0,
+ (struct sockaddr *)&lladdr, &fromlen);
+ if (len < 0) {
+ perror("recv");
+ return;
+ }
+
+ 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);
+ }
+}
+
+
+static int i802_get_inact_sec(void *priv, const u8 *addr)
+{
+ struct hostap_sta_driver_data data;
+ int ret;
+
+ data.inactive_msec = (unsigned long) -1;
+ ret = i802_read_sta_data(priv, &data, addr);
+ if (ret || data.inactive_msec == (unsigned long) -1)
+ return -1;
+ return data.inactive_msec / 1000;
+}
+
+
+static int i802_sta_clear_stats(void *priv, const u8 *addr)
+{
+#if 0
+ /* TODO */
+#endif
+ return 0;
+}
+
+
+static int i802_sta_deauth(void *priv, const u8 *own_addr, const u8 *addr,
+ int reason)
+{
+ struct wpa_driver_nl80211_data *drv = priv;
+ struct ieee80211_mgmt mgmt;
+
+ memset(&mgmt, 0, sizeof(mgmt));
+ mgmt.frame_control = IEEE80211_FC(WLAN_FC_TYPE_MGMT,
+ WLAN_FC_STYPE_DEAUTH);
+ memcpy(mgmt.da, addr, ETH_ALEN);
+ memcpy(mgmt.sa, own_addr, ETH_ALEN);
+ memcpy(mgmt.bssid, own_addr, ETH_ALEN);
+ mgmt.u.deauth.reason_code = host_to_le16(reason);
+ return wpa_driver_nl80211_send_mlme(drv, (u8 *) &mgmt,
+ IEEE80211_HDRLEN +
+ sizeof(mgmt.u.deauth));
+}
+
+
+static int i802_sta_disassoc(void *priv, const u8 *own_addr, const u8 *addr,
+ int reason)
+{
+ struct wpa_driver_nl80211_data *drv = priv;
+ struct ieee80211_mgmt mgmt;
+
+ memset(&mgmt, 0, sizeof(mgmt));
+ mgmt.frame_control = IEEE80211_FC(WLAN_FC_TYPE_MGMT,
+ WLAN_FC_STYPE_DISASSOC);
+ memcpy(mgmt.da, addr, ETH_ALEN);
+ memcpy(mgmt.sa, own_addr, ETH_ALEN);
+ memcpy(mgmt.bssid, own_addr, ETH_ALEN);
+ mgmt.u.disassoc.reason_code = host_to_le16(reason);
+ return wpa_driver_nl80211_send_mlme(drv, (u8 *) &mgmt,
+ IEEE80211_HDRLEN +
+ sizeof(mgmt.u.disassoc));
+}
+
+
+static void *i802_init(struct hostapd_data *hapd,
+ struct wpa_init_params *params)
+{
+ struct wpa_driver_nl80211_data *drv;
+ size_t i;
+
+ drv = wpa_driver_nl80211_init(hapd, params->ifname);
+ if (drv == NULL)
+ return NULL;
+
+ drv->hapd = hapd;
+ drv->bss.ifindex = drv->ifindex;
+
+ drv->num_if_indices = sizeof(drv->default_if_indices) / sizeof(int);
+ drv->if_indices = drv->default_if_indices;
+ for (i = 0; i < params->num_bridge; i++) {
+ if (params->bridge[i])
+ add_ifidx(drv, if_nametoindex(params->bridge[i]));
+ }
+
+ /* start listening for EAPOL on the default AP interface */
+ add_ifidx(drv, drv->ifindex);
+
+ if (hostapd_set_iface_flags(drv, drv->ifname, 0))
+ goto failed;
+
+ if (params->bssid && set_ifhwaddr(drv, drv->ifname, params->bssid))
+ goto failed;
+
+ /* Initialise a monitor interface */
+ if (nl80211_create_monitor_interface(drv))
+ goto failed;
+
+ if (nl80211_set_mode(drv, drv->ifindex, NL80211_IFTYPE_AP)) {
+ wpa_printf(MSG_ERROR, "nl80211: Failed to set interface %s "
+ "into AP mode", drv->ifname);
+ goto failed;
+ }
+
+ if (hostapd_set_iface_flags(drv, drv->ifname, 1))
+ goto failed;
+
+ 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)");
+ goto failed;
+ }
+
+ if (eloop_register_read_sock(drv->eapol_sock, handle_eapol, drv, NULL))
+ {
+ printf("Could not register read socket for eapol\n");
+ goto failed;
+ }
+
+ if (get_ifhwaddr(drv, drv->ifname, drv->hapd->own_addr))
+ goto failed;
+
+ return drv;
+
+failed:
+ if (drv->monitor_ifidx >= 0)
+ nl80211_remove_iface(drv, drv->monitor_ifidx);
+ if (drv->ioctl_sock >= 0)
+ close(drv->ioctl_sock);
+
+ genl_family_put(drv->nl80211);
+ nl_cache_free(drv->nl_cache);
+ nl_handle_destroy(drv->nl_handle);
+ nl_cb_put(drv->nl_cb);
+
+ os_free(drv);
+ return NULL;
+}
+
+
+static void i802_deinit(void *priv)
+{
+ wpa_driver_nl80211_deinit(priv);
}
+#endif /* HOSTAPD */
+
const struct wpa_driver_ops wpa_driver_nl80211_ops = {
.name = "nl80211",
.get_capa = wpa_driver_nl80211_get_capa,
.set_operstate = wpa_driver_nl80211_set_operstate,
.set_country = wpa_driver_nl80211_set_country,
+ .set_mode = wpa_driver_nl80211_set_mode,
+#ifdef CONFIG_AP
+ .set_beacon = wpa_driver_nl80211_set_beacon,
+#endif /* CONFIG_AP */
+#if defined(CONFIG_AP) || defined(HOSTAPD)
+ .send_mlme = wpa_driver_nl80211_send_mlme,
+ .set_beacon_int = wpa_driver_nl80211_set_beacon_int,
+ .get_hw_feature_data = wpa_driver_nl80211_get_hw_feature_data,
+#endif /* CONFIG_AP || HOSTAPD */
+#ifdef HOSTAPD
+ .hapd_init = i802_init,
+ .hapd_deinit = i802_deinit,
+ .hapd_set_key = i802_set_key,
+ .get_seqnum = i802_get_seqnum,
+ .flush = i802_flush,
+ .read_sta_data = i802_read_sta_data,
+ .hapd_send_eapol = i802_send_eapol,
+ .sta_set_flags = i802_sta_set_flags,
+ .sta_deauth = i802_sta_deauth,
+ .sta_disassoc = i802_sta_disassoc,
+ .sta_remove = i802_sta_remove,
+ .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,
+ .set_frag = i802_set_frag,
+ .set_retry = i802_set_retry,
+ .set_rate_sets = i802_set_rate_sets,
+ .hapd_set_beacon = i802_set_beacon,
+ .set_cts_protect = i802_set_cts_protect,
+ .set_preamble = i802_set_preamble,
+ .set_short_slot_time = i802_set_short_slot_time,
+ .set_tx_queue_params = i802_set_tx_queue_params,
+ .bss_add = i802_bss_add,
+ .bss_remove = i802_bss_remove,
+ .if_add = i802_if_add,
+ .if_update = i802_if_update,
+ .if_remove = i802_if_remove,
+ .set_sta_vlan = i802_set_sta_vlan,
+#endif /* HOSTAPD */
};
projects / wpasupplicant / blobdiff