mirror of
https://github.com/vanhoefm/fragattacks.git
synced 2024-11-25 00:38:24 -05:00
Updated userspace MLME instructions for current mac80211
Remove the old code from driver_wext.c since the private ioctl interface is never going to be used with mac80211. driver_nl80211.c has an implementation than can be used with mac80211 (with two external patches to enable userspace MLME configuration are still required, though).
This commit is contained in:
Jouni Malinen
Jouni Malinen
parent
bac912e5bd
commit
cd35db9fef
@ -31,126 +31,6 @@
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#include "ieee802_11_defs.h"
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#include "wpa_common.h"
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#ifdef CONFIG_CLIENT_MLME
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#include <netpacket/packet.h>
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/* old definitions from net/mac80211 */
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typedef u32 __bitwise __be32;
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typedef u64 __bitwise __be64;
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#define PRISM2_IOCTL_PRISM2_PARAM (SIOCIWFIRSTPRIV + 0)
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#define PRISM2_IOCTL_GET_PRISM2_PARAM (SIOCIWFIRSTPRIV + 1)
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#define PRISM2_IOCTL_HOSTAPD (SIOCIWFIRSTPRIV + 3)
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#define PRISM2_PARAM_USER_SPACE_MLME 1045
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#define PRISM2_PARAM_MGMT_IF 1046
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#define PRISM2_HOSTAPD_ADD_STA 2
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#define PRISM2_HOSTAPD_REMOVE_STA 3
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#define PRISM2_HOSTAPD_GET_HW_FEATURES 1002
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#define PRISM2_HOSTAPD_MAX_BUF_SIZE 2048
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#ifndef ALIGNED
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#define ALIGNED __attribute__ ((aligned))
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#endif
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struct prism2_hostapd_param {
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u32 cmd;
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u8 sta_addr[ETH_ALEN];
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u8 pad[2];
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union {
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struct {
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u16 aid;
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u16 capability;
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u8 supp_rates[32];
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u8 wds_flags;
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#define IEEE80211_STA_DYNAMIC_ENC BIT(0)
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u8 enc_flags;
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u16 listen_interval;
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} add_sta;
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struct {
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u16 num_modes;
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u16 flags;
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u8 data[0] ALIGNED; /* num_modes * feature data */
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} hw_features;
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struct {
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u16 mode; /* MODE_* */
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u16 num_supported_rates;
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u16 num_basic_rates;
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u8 data[0] ALIGNED; /* num_supported_rates * u16 +
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* num_basic_rates * u16 */
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} set_rate_sets;
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struct {
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u16 mode; /* MODE_* */
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u16 chan;
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u32 flag;
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u8 power_level; /* regulatory limit in dBm */
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u8 antenna_max;
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} set_channel_flag;
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struct {
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u32 rd;
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} set_regulatory_domain;
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struct {
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u32 queue;
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s32 aifs;
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u32 cw_min;
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u32 cw_max;
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u32 burst_time; /* maximum burst time in 0.1 ms, i.e.,
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* 10 = 1 ms */
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} tx_queue_params;
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} u;
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};
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struct hostapd_ioctl_hw_modes_hdr {
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int mode;
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int num_channels;
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int num_rates;
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};
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/*
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* frame format for the management interface that is slated
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* to be replaced by "cooked monitor" with radiotap
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*/
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#define IEEE80211_FI_VERSION 0x80211001
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struct ieee80211_frame_info {
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__be32 version;
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__be32 length;
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__be64 mactime;
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__be64 hosttime;
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__be32 phytype;
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__be32 channel;
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__be32 datarate;
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__be32 antenna;
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__be32 priority;
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__be32 ssi_type;
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__be32 ssi_signal;
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__be32 ssi_noise;
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__be32 preamble;
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__be32 encoding;
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/* Note: this structure is otherwise identical to capture format used
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* in linux-wlan-ng, but this additional field is used to provide meta
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* data about the frame to hostapd. This was the easiest method for
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* providing this information, but this might change in the future. */
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__be32 msg_type;
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} __attribute__ ((packed));
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/* old mode definitions */
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enum {
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MODE_IEEE80211A = 0 /* IEEE 802.11a */,
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MODE_IEEE80211B = 1 /* IEEE 802.11b only */,
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MODE_ATHEROS_TURBO = 2 /* Atheros Turbo mode (2x.11a at 5 GHz) */,
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MODE_IEEE80211G = 3 /* IEEE 802.11g (and 802.11b compatibility) */,
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MODE_ATHEROS_TURBOG = 4 /* Atheros Turbo mode (2x.11g at 2.4 GHz) */,
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NUM_IEEE80211_MODES = 5
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};
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#ifndef ETH_P_ALL
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#define ETH_P_ALL 0x0003
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#endif
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#endif /* CONFIG_CLIENT_MLME */
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static int wpa_driver_wext_flush_pmkid(void *priv);
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static int wpa_driver_wext_get_range(void *priv);
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@ -999,46 +879,6 @@ static int wpa_driver_wext_set_ifflags_ifname(struct wpa_driver_wext_data *drv,
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}
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#ifdef CONFIG_CLIENT_MLME
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static int wpa_driver_prism2_param_set(struct wpa_driver_wext_data *drv,
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int param, int value)
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{
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struct iwreq iwr;
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int *i;
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os_memset(&iwr, 0, sizeof(iwr));
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os_strlcpy(iwr.ifr_name, drv->ifname, IFNAMSIZ);
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i = (int *) iwr.u.name;
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*i++ = param;
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*i++ = value;
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return ioctl(drv->ioctl_sock, PRISM2_IOCTL_PRISM2_PARAM, &iwr);
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}
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static int wpa_driver_prism2_param_get(struct wpa_driver_wext_data *drv,
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int param)
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{
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struct iwreq iwr;
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int *i;
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os_memset(&iwr, 0, sizeof(iwr));
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os_strlcpy(iwr.ifr_name, drv->ifname, IFNAMSIZ);
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i = (int *) iwr.u.name;
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*i = param;
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if (ioctl(drv->ioctl_sock, PRISM2_IOCTL_GET_PRISM2_PARAM, &iwr) < 0) {
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perror("ioctl[PRISM2_IOCTL_GET_PRISM2_PARAM]");
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return -1;
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}
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return *i;
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}
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#endif /* CONFIG_CLIENT_MLME */
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/**
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* wpa_driver_wext_set_ifflags - Set interface flags (SIOCSIFFLAGS)
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* @drv: driver_wext private data
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@ -1193,18 +1033,6 @@ void wpa_driver_wext_deinit(void *priv)
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if (wpa_driver_wext_get_ifflags(drv, &flags) == 0)
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(void) wpa_driver_wext_set_ifflags(drv, flags & ~IFF_UP);
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#ifdef CONFIG_CLIENT_MLME
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if (drv->mlmedev[0]) {
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if (wpa_driver_wext_get_ifflags_ifname(drv, drv->mlmedev,
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&flags) == 0)
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(void) wpa_driver_wext_set_ifflags_ifname(
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drv, drv->mlmedev, flags & ~IFF_UP);
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wpa_driver_prism2_param_set(drv, PRISM2_PARAM_MGMT_IF, 0);
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wpa_driver_prism2_param_set(drv, PRISM2_PARAM_USER_SPACE_MLME,
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0);
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}
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#endif /* CONFIG_CLIENT_MLME */
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close(drv->event_sock);
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close(drv->ioctl_sock);
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if (drv->mlme_sock >= 0)
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@ -2463,304 +2291,6 @@ int wpa_driver_wext_set_operstate(void *priv, int state)
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}
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#ifdef CONFIG_CLIENT_MLME
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static int hostapd_ioctl(struct wpa_driver_wext_data *drv,
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struct prism2_hostapd_param *param, int len)
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{
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struct iwreq iwr;
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os_memset(&iwr, 0, sizeof(iwr));
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os_strlcpy(iwr.ifr_name, drv->ifname, IFNAMSIZ);
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iwr.u.data.pointer = (caddr_t) param;
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iwr.u.data.length = len;
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if (ioctl(drv->ioctl_sock, PRISM2_IOCTL_HOSTAPD, &iwr) < 0) {
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perror("ioctl[PRISM2_IOCTL_HOSTAPD]");
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return -1;
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}
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return 0;
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}
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static struct wpa_hw_modes *
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wpa_driver_wext_get_hw_feature_data(void *priv, u16 *num_modes, u16 *flags)
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{
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struct wpa_driver_wext_data *drv = priv;
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struct prism2_hostapd_param *param;
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u8 *pos, *end;
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struct wpa_hw_modes *modes = NULL;
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int i;
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param = os_zalloc(PRISM2_HOSTAPD_MAX_BUF_SIZE);
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if (param == NULL)
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return NULL;
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param->cmd = PRISM2_HOSTAPD_GET_HW_FEATURES;
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if (hostapd_ioctl(drv, param, PRISM2_HOSTAPD_MAX_BUF_SIZE) < 0) {
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perror("ioctl[PRISM2_IOCTL_HOSTAPD]");
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goto out;
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}
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*num_modes = param->u.hw_features.num_modes;
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*flags = param->u.hw_features.flags;
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pos = param->u.hw_features.data;
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end = pos + PRISM2_HOSTAPD_MAX_BUF_SIZE -
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(param->u.hw_features.data - (u8 *) param);
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modes = os_zalloc(*num_modes * sizeof(struct wpa_hw_modes));
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if (modes == NULL)
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goto out;
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for (i = 0; i < *num_modes; i++) {
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struct hostapd_ioctl_hw_modes_hdr *hdr;
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struct wpa_hw_modes *feature;
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int clen, rlen;
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hdr = (struct hostapd_ioctl_hw_modes_hdr *) pos;
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pos = (u8 *) (hdr + 1);
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clen = hdr->num_channels * sizeof(struct wpa_channel_data);
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rlen = hdr->num_rates * sizeof(struct wpa_rate_data);
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feature = &modes[i];
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switch (hdr->mode) {
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case MODE_IEEE80211A:
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feature->mode = WPA_MODE_IEEE80211A;
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break;
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case MODE_IEEE80211B:
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feature->mode = WPA_MODE_IEEE80211B;
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break;
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case MODE_IEEE80211G:
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feature->mode = WPA_MODE_IEEE80211G;
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break;
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case MODE_ATHEROS_TURBO:
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case MODE_ATHEROS_TURBOG:
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wpa_printf(MSG_ERROR, "Skip unsupported hw_mode=%d in "
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"get_hw_features data", hdr->mode);
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pos += clen + rlen;
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continue;
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default:
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wpa_printf(MSG_ERROR, "Unknown hw_mode=%d in "
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"get_hw_features data", hdr->mode);
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wpa_supplicant_sta_free_hw_features(modes, *num_modes);
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modes = NULL;
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break;
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}
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feature->num_channels = hdr->num_channels;
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feature->num_rates = hdr->num_rates;
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feature->channels = os_malloc(clen);
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feature->rates = os_malloc(rlen);
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if (!feature->channels || !feature->rates ||
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pos + clen + rlen > end) {
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wpa_supplicant_sta_free_hw_features(modes, *num_modes);
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modes = NULL;
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break;
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}
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os_memcpy(feature->channels, pos, clen);
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pos += clen;
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os_memcpy(feature->rates, pos, rlen);
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pos += rlen;
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}
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out:
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os_free(param);
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return modes;
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}
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int wpa_driver_wext_set_channel(void *priv, wpa_hw_mode phymode, int chan,
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int freq)
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{
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return wpa_driver_wext_set_freq(priv, freq);
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}
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static void wpa_driver_wext_mlme_read(int sock, void *eloop_ctx,
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void *sock_ctx)
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{
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struct wpa_driver_wext_data *drv = eloop_ctx;
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int len;
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unsigned char buf[3000];
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struct ieee80211_frame_info *fi;
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struct ieee80211_rx_status rx_status;
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len = recv(sock, buf, sizeof(buf), 0);
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if (len < 0) {
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perror("recv[MLME]");
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return;
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}
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if (len < (int) sizeof(struct ieee80211_frame_info)) {
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wpa_printf(MSG_DEBUG, "WEXT: Too short MLME frame (len=%d)",
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len);
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return;
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}
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fi = (struct ieee80211_frame_info *) buf;
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if (ntohl(fi->version) != IEEE80211_FI_VERSION) {
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wpa_printf(MSG_DEBUG, "WEXT: Invalid MLME frame info version "
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"0x%x", ntohl(fi->version));
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return;
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}
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os_memset(&rx_status, 0, sizeof(rx_status));
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rx_status.ssi = ntohl(fi->ssi_signal);
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rx_status.channel = ntohl(fi->channel);
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wpa_supplicant_sta_rx(drv->ctx,
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buf + sizeof(struct ieee80211_frame_info),
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len - sizeof(struct ieee80211_frame_info),
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&rx_status);
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}
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static int wpa_driver_wext_open_mlme(struct wpa_driver_wext_data *drv)
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{
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int flags, ifindex, s;
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struct sockaddr_ll addr;
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struct ifreq ifr;
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if (wpa_driver_prism2_param_set(drv, PRISM2_PARAM_USER_SPACE_MLME, 1) <
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0) {
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wpa_printf(MSG_ERROR, "WEXT: Failed to configure driver to "
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"use user space MLME");
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return -1;
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}
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if (wpa_driver_prism2_param_set(drv, PRISM2_PARAM_MGMT_IF, 1) < 0) {
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wpa_printf(MSG_ERROR, "WEXT: Failed to add management "
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"interface for user space MLME");
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return -1;
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}
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ifindex = wpa_driver_prism2_param_get(drv, PRISM2_PARAM_MGMT_IF);
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if (ifindex <= 0) {
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wpa_printf(MSG_ERROR, "WEXT: MLME management device not "
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"found");
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return -1;
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}
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os_memset(&ifr, 0, sizeof(ifr));
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ifr.ifr_ifindex = ifindex;
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if (ioctl(drv->ioctl_sock, SIOCGIFNAME, &ifr) != 0) {
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perror("ioctl(SIOCGIFNAME)");
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return -1;
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}
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os_strlcpy(drv->mlmedev, ifr.ifr_name, sizeof(drv->mlmedev));
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wpa_printf(MSG_DEBUG, "WEXT: MLME management device '%s'",
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drv->mlmedev);
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if (wpa_driver_wext_get_ifflags_ifname(drv, drv->mlmedev, &flags) != 0
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|| wpa_driver_wext_set_ifflags_ifname(drv, drv->mlmedev,
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flags | IFF_UP) != 0) {
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wpa_printf(MSG_ERROR, "WEXT: Could not set interface "
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"'%s' UP", drv->mlmedev);
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return -1;
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}
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s = socket(PF_PACKET, SOCK_RAW, htons(ETH_P_ALL));
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if (s < 0) {
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perror("socket[PF_PACKET,SOCK_RAW]");
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return -1;
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}
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os_memset(&addr, 0, sizeof(addr));
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addr.sll_family = AF_PACKET;
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addr.sll_ifindex = ifindex;
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if (bind(s, (struct sockaddr *) &addr, sizeof(addr)) < 0) {
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perror("bind(MLME)");
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return -1;
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}
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if (eloop_register_read_sock(s, wpa_driver_wext_mlme_read, drv, NULL))
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{
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wpa_printf(MSG_ERROR, "WEXT: Could not register MLME read "
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"socket");
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close(s);
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return -1;
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}
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return s;
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}
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static int wpa_driver_wext_send_mlme(void *priv, const u8 *data,
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size_t data_len)
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{
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struct wpa_driver_wext_data *drv = priv;
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int ret;
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ret = send(drv->mlme_sock, data, data_len, 0);
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if (ret < 0) {
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perror("send[MLME]");
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return -1;
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}
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return 0;
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}
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static int wpa_driver_wext_mlme_add_sta(void *priv, const u8 *addr,
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const u8 *supp_rates,
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size_t supp_rates_len)
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{
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struct wpa_driver_wext_data *drv = priv;
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struct prism2_hostapd_param param;
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size_t len;
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os_memset(¶m, 0, sizeof(param));
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param.cmd = PRISM2_HOSTAPD_ADD_STA;
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os_memcpy(param.sta_addr, addr, ETH_ALEN);
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len = supp_rates_len;
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if (len > sizeof(param.u.add_sta.supp_rates))
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len = sizeof(param.u.add_sta.supp_rates);
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os_memcpy(param.u.add_sta.supp_rates, supp_rates, len);
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return hostapd_ioctl(drv, ¶m, sizeof(param));
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}
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static int wpa_driver_wext_mlme_remove_sta(void *priv, const u8 *addr)
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{
|
||||
struct wpa_driver_wext_data *drv = priv;
|
||||
struct prism2_hostapd_param param;
|
||||
|
||||
os_memset(¶m, 0, sizeof(param));
|
||||
param.cmd = PRISM2_HOSTAPD_REMOVE_STA;
|
||||
os_memcpy(param.sta_addr, addr, ETH_ALEN);
|
||||
return hostapd_ioctl(drv, ¶m, sizeof(param));
|
||||
}
|
||||
|
||||
#endif /* CONFIG_CLIENT_MLME */
|
||||
|
||||
|
||||
static int wpa_driver_wext_set_param(void *priv, const char *param)
|
||||
{
|
||||
#ifdef CONFIG_CLIENT_MLME
|
||||
struct wpa_driver_wext_data *drv = priv;
|
||||
|
||||
if (param == NULL)
|
||||
return 0;
|
||||
|
||||
wpa_printf(MSG_DEBUG, "%s: param='%s'", __func__, param);
|
||||
|
||||
if (os_strstr(param, "use_mlme=1")) {
|
||||
wpa_printf(MSG_DEBUG, "WEXT: Using user space MLME");
|
||||
drv->capa.flags |= WPA_DRIVER_FLAGS_USER_SPACE_MLME;
|
||||
|
||||
drv->mlme_sock = wpa_driver_wext_open_mlme(drv);
|
||||
if (drv->mlme_sock < 0)
|
||||
return -1;
|
||||
}
|
||||
#endif /* CONFIG_CLIENT_MLME */
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
|
||||
int wpa_driver_wext_get_version(struct wpa_driver_wext_data *drv)
|
||||
{
|
||||
return drv->we_version_compiled;
|
||||
@ -2785,19 +2315,9 @@ const struct wpa_driver_ops wpa_driver_wext_ops = {
|
||||
.set_auth_alg = wpa_driver_wext_set_auth_alg,
|
||||
.init = wpa_driver_wext_init,
|
||||
.deinit = wpa_driver_wext_deinit,
|
||||
.set_param = wpa_driver_wext_set_param,
|
||||
.add_pmkid = wpa_driver_wext_add_pmkid,
|
||||
.remove_pmkid = wpa_driver_wext_remove_pmkid,
|
||||
.flush_pmkid = wpa_driver_wext_flush_pmkid,
|
||||
.get_capa = wpa_driver_wext_get_capa,
|
||||
.set_operstate = wpa_driver_wext_set_operstate,
|
||||
#ifdef CONFIG_CLIENT_MLME
|
||||
.get_hw_feature_data = wpa_driver_wext_get_hw_feature_data,
|
||||
.set_channel = wpa_driver_wext_set_channel,
|
||||
.set_ssid = wpa_driver_wext_set_ssid,
|
||||
.set_bssid = wpa_driver_wext_set_bssid,
|
||||
.send_mlme = wpa_driver_wext_send_mlme,
|
||||
.mlme_add_sta = wpa_driver_wext_mlme_add_sta,
|
||||
.mlme_remove_sta = wpa_driver_wext_mlme_remove_sta,
|
||||
#endif /* CONFIG_CLIENT_MLME */
|
||||
};
|
||||
|
||||
@ -18,6 +18,9 @@ ChangeLog for wpa_supplicant
|
||||
session ticket overriding API that was included into the upstream
|
||||
OpenSSL 0.9.9 tree on 2008-11-15 (no additional OpenSSL patch is
|
||||
needed with that version anymore)
|
||||
* updated userspace MLME instructions to match with the current Linux
|
||||
mac80211 implementation; please also note that this can only be used
|
||||
with driver_nl80211.c (the old code from driver_wext.c was removed)
|
||||
|
||||
2008-11-01 - v0.6.5
|
||||
* added support for SHA-256 as X.509 certificate digest when using the
|
||||
|
||||
@ -346,14 +346,15 @@ CONFIG_PEERKEY=y
|
||||
#CONFIG_DYNAMIC_EAP_METHODS=y
|
||||
|
||||
# Include client MLME (management frame processing).
|
||||
# This can be used to move MLME processing of Devicescape IEEE 802.11 stack
|
||||
# into user space.
|
||||
# This can be used to move MLME processing of Linux mac80211 stack into user
|
||||
# space.
|
||||
#CONFIG_CLIENT_MLME=y
|
||||
# Currently, driver_devicescape.c build requires some additional parameters
|
||||
# to be able to include some of the kernel header files. Following lines can
|
||||
# be used to set these (WIRELESS_DEV must point to the root directory of the
|
||||
# wireless-dev.git tree).
|
||||
#WIRELESS_DEV=/usr/src/wireless-dev
|
||||
# Currently, driver_nl80211.c build requires some additional parameters to be
|
||||
# able to include some of the kernel header files. Following lines can be used
|
||||
# to set these (WIRELESS_DEV must point to the root directory of the
|
||||
# wireless-testing.git tree). In addition, mac80211 may need external patches
|
||||
# to enable userspace MLME support.
|
||||
#WIRELESS_DEV=/usr/src/wireless-testing
|
||||
#CFLAGS += -I$(WIRELESS_DEV)/net/mac80211
|
||||
|
||||
# IEEE Std 802.11r-2008 (Fast BSS Transition)
|
||||
|
||||
Loading…
Reference in New Issue
Block a user