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authorJouni Malinen <j@w1.fi>2008-10-29 19:48:14 (GMT)
committerJouni Malinen <j@w1.fi>2008-10-29 19:48:14 (GMT)
commitcb7b04c8c9ddaee2cea881ec1547c61277789802 (patch)
tree6e9576799929584cd10ac436ab70a0deba7b6f4b
parent3d536eb45382d8289fbbf62209023c793a3b579c (diff)
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Moved ieee802_11_parse_elems() into common code
-rw-r--r--hostapd/Makefile1
-rw-r--r--hostapd/driver_madwifi.c1
-rw-r--r--hostapd/ieee802_11.c204
-rw-r--r--hostapd/ieee802_11.h51
-rw-r--r--hostapd/wme.h17
-rw-r--r--src/common/ieee802_11_common.c220
-rw-r--r--src/common/ieee802_11_common.h68
-rw-r--r--src/common/ieee802_11_defs.h22
-rw-r--r--src/drivers/driver_madwifi.c6
9 files changed, 319 insertions, 271 deletions
diff --git a/hostapd/Makefile b/hostapd/Makefile
index 2580a44..7a85368 100644
--- a/hostapd/Makefile
+++ b/hostapd/Makefile
@@ -52,6 +52,7 @@ OBJS += ../src/utils/wpabuf.o
OBJS += ../src/utils/os_$(CONFIG_OS).o
OBJS += ../src/utils/ip_addr.o
+OBJS += ../src/common/ieee802_11_common.o
OBJS += ../src/common/wpa_common.o
OBJS += ../src/radius/radius.o
diff --git a/hostapd/driver_madwifi.c b/hostapd/driver_madwifi.c
index 1dd12ea..9ddd033 100644
--- a/hostapd/driver_madwifi.c
+++ b/hostapd/driver_madwifi.c
@@ -35,6 +35,7 @@
#undef RSN_VERSION
#undef WPA_VERSION
#undef WPA_OUI_TYPE
+#undef WME_OUI_TYPE
#ifdef IEEE80211_IOCTL_SETWMMPARAMS
diff --git a/hostapd/ieee802_11.c b/hostapd/ieee802_11.c
index 81f7bae..0e5b08e 100644
--- a/hostapd/ieee802_11.c
+++ b/hostapd/ieee802_11.c
@@ -290,86 +290,6 @@ u16 hostapd_own_capab_info(struct hostapd_data *hapd, struct sta_info *sta,
}
-#define OUI_MICROSOFT 0x0050f2 /* Microsoft (also used in Wi-Fi specs)
- * 00:50:F2 */
-
-static int ieee802_11_parse_vendor_specific(u8 *pos, size_t elen,
- struct ieee802_11_elems *elems,
- int show_errors)
-{
- unsigned int oui;
-
- /* first 3 bytes in vendor specific information element are the IEEE
- * OUI of the vendor. The following byte is used a vendor specific
- * sub-type. */
- if (elen < 4) {
- if (show_errors) {
- wpa_printf(MSG_MSGDUMP, "short vendor specific "
- "information element ignored (len=%lu)",
- (unsigned long) elen);
- }
- return -1;
- }
-
- oui = WPA_GET_BE24(pos);
- switch (oui) {
- case OUI_MICROSOFT:
- /* Microsoft/Wi-Fi information elements are further typed and
- * subtyped */
- switch (pos[3]) {
- case 1:
- /* Microsoft OUI (00:50:F2) with OUI Type 1:
- * real WPA information element */
- elems->wpa_ie = pos;
- elems->wpa_ie_len = elen;
- break;
- case WME_OUI_TYPE: /* this is a Wi-Fi WME info. element */
- if (elen < 5) {
- wpa_printf(MSG_MSGDUMP, "short WME "
- "information element ignored "
- "(len=%lu)",
- (unsigned long) elen);
- return -1;
- }
- switch (pos[4]) {
- case WME_OUI_SUBTYPE_INFORMATION_ELEMENT:
- case WME_OUI_SUBTYPE_PARAMETER_ELEMENT:
- elems->wme = pos;
- elems->wme_len = elen;
- break;
- case WME_OUI_SUBTYPE_TSPEC_ELEMENT:
- elems->wme_tspec = pos;
- elems->wme_tspec_len = elen;
- break;
- default:
- wpa_printf(MSG_MSGDUMP, "unknown WME "
- "information element ignored "
- "(subtype=%d len=%lu)",
- pos[4], (unsigned long) elen);
- return -1;
- }
- break;
- default:
- wpa_printf(MSG_MSGDUMP, "Unknown Microsoft "
- "information element ignored "
- "(type=%d len=%lu)\n",
- pos[3], (unsigned long) elen);
- return -1;
- }
- break;
-
- default:
- wpa_printf(MSG_MSGDUMP, "unknown vendor specific information "
- "element ignored (vendor OUI %02x:%02x:%02x "
- "len=%lu)",
- pos[0], pos[1], pos[2], (unsigned long) elen);
- return -1;
- }
-
- return 0;
-}
-
-
#ifdef CONFIG_IEEE80211W
static u8 * hostapd_eid_assoc_comeback_time(struct hostapd_data *hapd,
struct sta_info *sta, u8 *eid)
@@ -389,130 +309,6 @@ static u8 * hostapd_eid_assoc_comeback_time(struct hostapd_data *hapd,
#endif /* CONFIG_IEEE80211W */
-ParseRes ieee802_11_parse_elems(u8 *start, size_t len,
- struct ieee802_11_elems *elems,
- int show_errors)
-{
- size_t left = len;
- u8 *pos = start;
- int unknown = 0;
-
- os_memset(elems, 0, sizeof(*elems));
-
- while (left >= 2) {
- u8 id, elen;
-
- id = *pos++;
- elen = *pos++;
- left -= 2;
-
- if (elen > left) {
- if (show_errors) {
- wpa_printf(MSG_DEBUG, "IEEE 802.11 element "
- "parse failed (id=%d elen=%d "
- "left=%lu)",
- id, elen, (unsigned long) left);
- wpa_hexdump(MSG_MSGDUMP, "IEs", start, len);
- }
- return ParseFailed;
- }
-
- switch (id) {
- case WLAN_EID_SSID:
- elems->ssid = pos;
- elems->ssid_len = elen;
- break;
- case WLAN_EID_SUPP_RATES:
- elems->supp_rates = pos;
- elems->supp_rates_len = elen;
- break;
- case WLAN_EID_FH_PARAMS:
- elems->fh_params = pos;
- elems->fh_params_len = elen;
- break;
- case WLAN_EID_DS_PARAMS:
- elems->ds_params = pos;
- elems->ds_params_len = elen;
- break;
- case WLAN_EID_CF_PARAMS:
- elems->cf_params = pos;
- elems->cf_params_len = elen;
- break;
- case WLAN_EID_TIM:
- elems->tim = pos;
- elems->tim_len = elen;
- break;
- case WLAN_EID_IBSS_PARAMS:
- elems->ibss_params = pos;
- elems->ibss_params_len = elen;
- break;
- case WLAN_EID_CHALLENGE:
- elems->challenge = pos;
- elems->challenge_len = elen;
- break;
- case WLAN_EID_ERP_INFO:
- elems->erp_info = pos;
- elems->erp_info_len = elen;
- break;
- case WLAN_EID_EXT_SUPP_RATES:
- elems->ext_supp_rates = pos;
- elems->ext_supp_rates_len = elen;
- break;
- case WLAN_EID_VENDOR_SPECIFIC:
- if (ieee802_11_parse_vendor_specific(pos, elen,
- elems,
- show_errors))
- unknown++;
- break;
- case WLAN_EID_RSN:
- elems->rsn_ie = pos;
- elems->rsn_ie_len = elen;
- break;
- case WLAN_EID_PWR_CAPABILITY:
- elems->power_cap = pos;
- elems->power_cap_len = elen;
- break;
- case WLAN_EID_SUPPORTED_CHANNELS:
- elems->supp_channels = pos;
- elems->supp_channels_len = elen;
- break;
- case WLAN_EID_MOBILITY_DOMAIN:
- elems->mdie = pos;
- elems->mdie_len = elen;
- break;
- case WLAN_EID_FAST_BSS_TRANSITION:
- elems->ftie = pos;
- elems->ftie_len = elen;
- break;
- case WLAN_EID_HT_CAP:
- elems->ht_capabilities = pos;
- elems->ht_capabilities_len = elen;
- break;
- case WLAN_EID_HT_OPERATION:
- elems->ht_operation = pos;
- elems->ht_operation_len = elen;
- break;
- default:
- unknown++;
- if (!show_errors)
- break;
- wpa_printf(MSG_MSGDUMP, "IEEE 802.11 element parse "
- "ignored unknown element (id=%d elen=%d)",
- id, elen);
- break;
- }
-
- left -= elen;
- pos += elen;
- }
-
- if (left)
- return ParseFailed;
-
- return unknown ? ParseUnknown : ParseOK;
-}
-
-
void ieee802_11_print_ssid(char *buf, const u8 *ssid, u8 len)
{
int i;
diff --git a/hostapd/ieee802_11.h b/hostapd/ieee802_11.h
index 5454812..bb88ede 100644
--- a/hostapd/ieee802_11.h
+++ b/hostapd/ieee802_11.h
@@ -17,53 +17,7 @@
#define IEEE802_11_H
#include "ieee802_11_defs.h"
-
-/* Parsed Information Elements */
-struct ieee802_11_elems {
- u8 *ssid;
- u8 ssid_len;
- u8 *supp_rates;
- u8 supp_rates_len;
- u8 *fh_params;
- u8 fh_params_len;
- u8 *ds_params;
- u8 ds_params_len;
- u8 *cf_params;
- u8 cf_params_len;
- u8 *tim;
- u8 tim_len;
- u8 *ibss_params;
- u8 ibss_params_len;
- u8 *challenge;
- u8 challenge_len;
- u8 *erp_info;
- u8 erp_info_len;
- u8 *ext_supp_rates;
- u8 ext_supp_rates_len;
- u8 *wpa_ie;
- u8 wpa_ie_len;
- u8 *rsn_ie;
- u8 rsn_ie_len;
- u8 *wme;
- u8 wme_len;
- u8 *wme_tspec;
- u8 wme_tspec_len;
- u8 *power_cap;
- u8 power_cap_len;
- u8 *supp_channels;
- u8 supp_channels_len;
- u8 *mdie;
- u8 mdie_len;
- u8 *ftie;
- u8 ftie_len;
- u8 *ht_capabilities;
- u8 ht_capabilities_len;
- u8 *ht_operation;
- u8 ht_operation_len;
-};
-
-typedef enum { ParseOK = 0, ParseUnknown = 1, ParseFailed = -1 } ParseRes;
-
+#include "ieee802_11_common.h"
struct hostapd_frame_info {
u32 phytype;
@@ -83,9 +37,6 @@ void ieee802_11_mgmt(struct hostapd_data *hapd, u8 *buf, size_t len,
u16 stype, struct hostapd_frame_info *fi);
void ieee802_11_mgmt_cb(struct hostapd_data *hapd, u8 *buf, size_t len,
u16 stype, int ok);
-ParseRes ieee802_11_parse_elems(u8 *start, size_t len,
- struct ieee802_11_elems *elems,
- int show_errors);
void ieee802_11_print_ssid(char *buf, const u8 *ssid, u8 len);
void ieee80211_michael_mic_failure(struct hostapd_data *hapd, const u8 *addr,
int local);
diff --git a/hostapd/wme.h b/hostapd/wme.h
index c524fb3..4ee281a 100644
--- a/hostapd/wme.h
+++ b/hostapd/wme.h
@@ -26,23 +26,6 @@
#endif /* defined(__FreeBSD__) || defined(__NetBSD__) ||
* defined(__DragonFly__) */
-#define WME_OUI_TYPE 2
-#define WME_OUI_SUBTYPE_INFORMATION_ELEMENT 0
-#define WME_OUI_SUBTYPE_PARAMETER_ELEMENT 1
-#define WME_OUI_SUBTYPE_TSPEC_ELEMENT 2
-#define WME_VERSION 1
-
-#define WME_ACTION_CODE_SETUP_REQUEST 0
-#define WME_ACTION_CODE_SETUP_RESPONSE 1
-#define WME_ACTION_CODE_TEARDOWN 2
-
-#define WME_SETUP_RESPONSE_STATUS_ADMISSION_ACCEPTED 0
-#define WME_SETUP_RESPONSE_STATUS_INVALID_PARAMETERS 1
-#define WME_SETUP_RESPONSE_STATUS_REFUSED 3
-
-#define WME_TSPEC_DIRECTION_UPLINK 0
-#define WME_TSPEC_DIRECTION_DOWNLINK 1
-#define WME_TSPEC_DIRECTION_BI_DIRECTIONAL 3
extern inline u16 tsinfo(int tag1d, int contention_based, int direction)
{
diff --git a/src/common/ieee802_11_common.c b/src/common/ieee802_11_common.c
new file mode 100644
index 0000000..34fc7cd
--- /dev/null
+++ b/src/common/ieee802_11_common.c
@@ -0,0 +1,220 @@
+/*
+ * IEEE 802.11 Common routines
+ * Copyright (c) 2002-2008, Jouni Malinen <j@w1.fi>
+ *
+ * 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
+ * published by the Free Software Foundation.
+ *
+ * Alternatively, this software may be distributed under the terms of BSD
+ * license.
+ *
+ * See README and COPYING for more details.
+ */
+
+#include "includes.h"
+
+#include "common.h"
+#include "ieee802_11_defs.h"
+#include "ieee802_11_common.h"
+
+
+static int ieee802_11_parse_vendor_specific(u8 *pos, size_t elen,
+ struct ieee802_11_elems *elems,
+ int show_errors)
+{
+ unsigned int oui;
+
+ /* first 3 bytes in vendor specific information element are the IEEE
+ * OUI of the vendor. The following byte is used a vendor specific
+ * sub-type. */
+ if (elen < 4) {
+ if (show_errors) {
+ wpa_printf(MSG_MSGDUMP, "short vendor specific "
+ "information element ignored (len=%lu)",
+ (unsigned long) elen);
+ }
+ return -1;
+ }
+
+ oui = WPA_GET_BE24(pos);
+ switch (oui) {
+ case OUI_MICROSOFT:
+ /* Microsoft/Wi-Fi information elements are further typed and
+ * subtyped */
+ switch (pos[3]) {
+ case 1:
+ /* Microsoft OUI (00:50:F2) with OUI Type 1:
+ * real WPA information element */
+ elems->wpa_ie = pos;
+ elems->wpa_ie_len = elen;
+ break;
+ case WME_OUI_TYPE: /* this is a Wi-Fi WME info. element */
+ if (elen < 5) {
+ wpa_printf(MSG_MSGDUMP, "short WME "
+ "information element ignored "
+ "(len=%lu)",
+ (unsigned long) elen);
+ return -1;
+ }
+ switch (pos[4]) {
+ case WME_OUI_SUBTYPE_INFORMATION_ELEMENT:
+ case WME_OUI_SUBTYPE_PARAMETER_ELEMENT:
+ elems->wme = pos;
+ elems->wme_len = elen;
+ break;
+ case WME_OUI_SUBTYPE_TSPEC_ELEMENT:
+ elems->wme_tspec = pos;
+ elems->wme_tspec_len = elen;
+ break;
+ default:
+ wpa_printf(MSG_MSGDUMP, "unknown WME "
+ "information element ignored "
+ "(subtype=%d len=%lu)",
+ pos[4], (unsigned long) elen);
+ return -1;
+ }
+ break;
+ default:
+ wpa_printf(MSG_MSGDUMP, "Unknown Microsoft "
+ "information element ignored "
+ "(type=%d len=%lu)\n",
+ pos[3], (unsigned long) elen);
+ return -1;
+ }
+ break;
+
+ default:
+ wpa_printf(MSG_MSGDUMP, "unknown vendor specific information "
+ "element ignored (vendor OUI %02x:%02x:%02x "
+ "len=%lu)",
+ pos[0], pos[1], pos[2], (unsigned long) elen);
+ return -1;
+ }
+
+ return 0;
+}
+
+
+ParseRes ieee802_11_parse_elems(u8 *start, size_t len,
+ struct ieee802_11_elems *elems,
+ int show_errors)
+{
+ size_t left = len;
+ u8 *pos = start;
+ int unknown = 0;
+
+ os_memset(elems, 0, sizeof(*elems));
+
+ while (left >= 2) {
+ u8 id, elen;
+
+ id = *pos++;
+ elen = *pos++;
+ left -= 2;
+
+ if (elen > left) {
+ if (show_errors) {
+ wpa_printf(MSG_DEBUG, "IEEE 802.11 element "
+ "parse failed (id=%d elen=%d "
+ "left=%lu)",
+ id, elen, (unsigned long) left);
+ wpa_hexdump(MSG_MSGDUMP, "IEs", start, len);
+ }
+ return ParseFailed;
+ }
+
+ switch (id) {
+ case WLAN_EID_SSID:
+ elems->ssid = pos;
+ elems->ssid_len = elen;
+ break;
+ case WLAN_EID_SUPP_RATES:
+ elems->supp_rates = pos;
+ elems->supp_rates_len = elen;
+ break;
+ case WLAN_EID_FH_PARAMS:
+ elems->fh_params = pos;
+ elems->fh_params_len = elen;
+ break;
+ case WLAN_EID_DS_PARAMS:
+ elems->ds_params = pos;
+ elems->ds_params_len = elen;
+ break;
+ case WLAN_EID_CF_PARAMS:
+ elems->cf_params = pos;
+ elems->cf_params_len = elen;
+ break;
+ case WLAN_EID_TIM:
+ elems->tim = pos;
+ elems->tim_len = elen;
+ break;
+ case WLAN_EID_IBSS_PARAMS:
+ elems->ibss_params = pos;
+ elems->ibss_params_len = elen;
+ break;
+ case WLAN_EID_CHALLENGE:
+ elems->challenge = pos;
+ elems->challenge_len = elen;
+ break;
+ case WLAN_EID_ERP_INFO:
+ elems->erp_info = pos;
+ elems->erp_info_len = elen;
+ break;
+ case WLAN_EID_EXT_SUPP_RATES:
+ elems->ext_supp_rates = pos;
+ elems->ext_supp_rates_len = elen;
+ break;
+ case WLAN_EID_VENDOR_SPECIFIC:
+ if (ieee802_11_parse_vendor_specific(pos, elen,
+ elems,
+ show_errors))
+ unknown++;
+ break;
+ case WLAN_EID_RSN:
+ elems->rsn_ie = pos;
+ elems->rsn_ie_len = elen;
+ break;
+ case WLAN_EID_PWR_CAPABILITY:
+ elems->power_cap = pos;
+ elems->power_cap_len = elen;
+ break;
+ case WLAN_EID_SUPPORTED_CHANNELS:
+ elems->supp_channels = pos;
+ elems->supp_channels_len = elen;
+ break;
+ case WLAN_EID_MOBILITY_DOMAIN:
+ elems->mdie = pos;
+ elems->mdie_len = elen;
+ break;
+ case WLAN_EID_FAST_BSS_TRANSITION:
+ elems->ftie = pos;
+ elems->ftie_len = elen;
+ break;
+ case WLAN_EID_HT_CAP:
+ elems->ht_capabilities = pos;
+ elems->ht_capabilities_len = elen;
+ break;
+ case WLAN_EID_HT_OPERATION:
+ elems->ht_operation = pos;
+ elems->ht_operation_len = elen;
+ break;
+ default:
+ unknown++;
+ if (!show_errors)
+ break;
+ wpa_printf(MSG_MSGDUMP, "IEEE 802.11 element parse "
+ "ignored unknown element (id=%d elen=%d)",
+ id, elen);
+ break;
+ }
+
+ left -= elen;
+ pos += elen;
+ }
+
+ if (left)
+ return ParseFailed;
+
+ return unknown ? ParseUnknown : ParseOK;
+}
diff --git a/src/common/ieee802_11_common.h b/src/common/ieee802_11_common.h
new file mode 100644
index 0000000..56bb502
--- /dev/null
+++ b/src/common/ieee802_11_common.h
@@ -0,0 +1,68 @@
+/*
+ * IEEE 802.11 Common routines
+ * Copyright (c) 2002-2008, Jouni Malinen <j@w1.fi>
+ *
+ * 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
+ * published by the Free Software Foundation.
+ *
+ * Alternatively, this software may be distributed under the terms of BSD
+ * license.
+ *
+ * See README and COPYING for more details.
+ */
+
+#ifndef IEEE802_11_COMMON_H
+#define IEEE802_11_COMMON_H
+
+/* Parsed Information Elements */
+struct ieee802_11_elems {
+ u8 *ssid;
+ u8 ssid_len;
+ u8 *supp_rates;
+ u8 supp_rates_len;
+ u8 *fh_params;
+ u8 fh_params_len;
+ u8 *ds_params;
+ u8 ds_params_len;
+ u8 *cf_params;
+ u8 cf_params_len;
+ u8 *tim;
+ u8 tim_len;
+ u8 *ibss_params;
+ u8 ibss_params_len;
+ u8 *challenge;
+ u8 challenge_len;
+ u8 *erp_info;
+ u8 erp_info_len;
+ u8 *ext_supp_rates;
+ u8 ext_supp_rates_len;
+ u8 *wpa_ie;
+ u8 wpa_ie_len;
+ u8 *rsn_ie;
+ u8 rsn_ie_len;
+ u8 *wme;
+ u8 wme_len;
+ u8 *wme_tspec;
+ u8 wme_tspec_len;
+ u8 *power_cap;
+ u8 power_cap_len;
+ u8 *supp_channels;
+ u8 supp_channels_len;
+ u8 *mdie;
+ u8 mdie_len;
+ u8 *ftie;
+ u8 ftie_len;
+ u8 *ht_capabilities;
+ u8 ht_capabilities_len;
+ u8 *ht_operation;
+ u8 ht_operation_len;
+};
+
+typedef enum { ParseOK = 0, ParseUnknown = 1, ParseFailed = -1 } ParseRes;
+
+ParseRes ieee802_11_parse_elems(u8 *start, size_t len,
+ struct ieee802_11_elems *elems,
+ int show_errors);
+
+#endif /* IEEE802_11_COMMON_H */
diff --git a/src/common/ieee802_11_defs.h b/src/common/ieee802_11_defs.h
index 7e2801e..9819b09 100644
--- a/src/common/ieee802_11_defs.h
+++ b/src/common/ieee802_11_defs.h
@@ -556,4 +556,26 @@ struct mimo_pwr_save_action {
u8 mode;
} STRUCT_PACKED;
+
+#define OUI_MICROSOFT 0x0050f2 /* Microsoft (also used in Wi-Fi specs)
+ * 00:50:F2 */
+
+#define WME_OUI_TYPE 2
+#define WME_OUI_SUBTYPE_INFORMATION_ELEMENT 0
+#define WME_OUI_SUBTYPE_PARAMETER_ELEMENT 1
+#define WME_OUI_SUBTYPE_TSPEC_ELEMENT 2
+#define WME_VERSION 1
+
+#define WME_ACTION_CODE_SETUP_REQUEST 0
+#define WME_ACTION_CODE_SETUP_RESPONSE 1
+#define WME_ACTION_CODE_TEARDOWN 2
+
+#define WME_SETUP_RESPONSE_STATUS_ADMISSION_ACCEPTED 0
+#define WME_SETUP_RESPONSE_STATUS_INVALID_PARAMETERS 1
+#define WME_SETUP_RESPONSE_STATUS_REFUSED 3
+
+#define WME_TSPEC_DIRECTION_UPLINK 0
+#define WME_TSPEC_DIRECTION_DOWNLINK 1
+#define WME_TSPEC_DIRECTION_BI_DIRECTIONAL 3
+
#endif /* IEEE802_11_DEFS_H */
diff --git a/src/drivers/driver_madwifi.c b/src/drivers/driver_madwifi.c
index aeabe34..c37cc35 100644
--- a/src/drivers/driver_madwifi.c
+++ b/src/drivers/driver_madwifi.c
@@ -23,6 +23,11 @@
#include "ieee802_11_defs.h"
#include "wireless_copy.h"
+/*
+ * Avoid conflicts with wpa_supplicant definitions by undefining a definition.
+ */
+#undef WME_OUI_TYPE
+
#include <include/compat.h>
#include <net80211/ieee80211.h>
#ifdef WME_NUM_AC
@@ -33,6 +38,7 @@
#include <net80211/ieee80211_crypto.h>
#include <net80211/ieee80211_ioctl.h>
+
#ifdef IEEE80211_IOCTL_SETWMMPARAMS
/* Assume this is built against madwifi-ng */
#define MADWIFI_NG