[patch] 10_orinoco-monitor-0.13

10_orinoco_monitor_0.13 (text/plain), 24.20 KB, created by David Holm (RETIRED) on 2003-12-14 12:09:43 UTC

diff -urN ppc3.orig/drivers/net/wireless/hermes.c linux-2.4.21-ppc3/drivers/net/wireless/hermes.c
--- ppc3.orig/drivers/net/wireless/hermes.c	2003-06-17 07:00:36.000000000 -0500
+++ linux-2.4.21-ppc3/drivers/net/wireless/hermes.c	2003-06-17 08:23:01.000000000 -0500
@@ -184,6 +184,10 @@
 	if (err)
 		return err;
 
+        for ( k = 0; k < HERMES_NUMPORTS_MAX; k++) {
+		hw->port_enabled[k] = 0;
+	}
+
 	reg = hermes_read_regn(hw, EVSTAT);
 	k = CMD_INIT_TIMEOUT;
 	while ( (! (reg & HERMES_EV_CMD)) && k) {
diff -urN ppc3.orig/drivers/net/wireless/hermes.h linux-2.4.21-ppc3/drivers/net/wireless/hermes.h
--- ppc3.orig/drivers/net/wireless/hermes.h	2003-06-17 07:00:36.000000000 -0500
+++ linux-2.4.21-ppc3/drivers/net/wireless/hermes.h	2003-06-17 08:23:01.000000000 -0500
@@ -33,6 +33,10 @@
 #include <linux/if_ether.h>
 #include <asm/byteorder.h>
 
+#define		HFA384x_PORTTYPE_IBSS			((uint16_t)3)
+#define		HFA384x_WEPFLAGS_DISABLE_TXCRYPT	(0x10)
+#define		HFA384x_WEPFLAGS_DISABLE_RXCRYPT	(0x80)
+
 /*
  * Limits and constants
  */
@@ -149,6 +153,38 @@
 #define		HERMES_MONITOR_DISABLE		(0x000f)
 
 /*
+ * Configuration RIDs
+ */
+
+#define		HERMES_RID_CNF_PORTTYPE		(0xfc00)
+#define		HERMES_RID_CNF_CHANNEL		(0xfc03)
+#define		HERMES_RID_CNF_PRISM2_WEP_ON	(0xfc28)
+
+/*-- Status Fields --*/
+#define		HERMES_RXSTATUS_MSGTYPE		(0xE000)
+#define		HERMES_RXSTATUS_MACPORT		(0x0700)
+#define		HERMES_RXSTATUS_UNDECR		(0x0002)
+#define		HERMES_RXSTATUS_FCSERR		(0x0001)
+
+/*--------------------------------------------------------------------
+Communication Frames: Test/Get/Set Field Values for Receive Frames
+--------------------------------------------------------------------*/
+#define		HERMES_RXSTATUS_MSGTYPE_GET(value)	(((value) & HERMES_RXSTATUS_MSGTYPE) >> 13)
+#define		HERMES_RXSTATUS_MSGTYPE_SET(value)	((value) << 13)
+#define		HERMES_RXSTATUS_MACPORT_GET(value)	(((value) & HERMES_RXSTATUS_MACPORT) >> 8)
+#define		HERMES_RXSTATUS_MACPORT_SET(value)	((value) << 8)
+#define		HERMES_RXSTATUS_ISUNDECR(value)	((value) & HERMES_RXSTATUS_UNDECR)
+#define		HERMES_RXSTATUS_ISFCSERR(value)	((value) & HERMES_RXSTATUS_FCSERR)
+
+/*--------------------------------------------------------------------
+Communication Frames: Field Masks for Receive Frames
+--------------------------------------------------------------------*/
+/*-- Offsets --------*/
+#define		HERMES_RX_DATA_LEN_OFF		(44)
+#define		HERMES_RX_80211HDR_OFF		(14)
+#define		HERMES_RX_DATA_OFF			(60)
+
+/*
  * Frame structures and constants
  */
 
@@ -286,6 +322,7 @@
 #define HERMES_32BIT_REGSPACING	1
 
 	u16 inten; /* Which interrupts should be enabled? */
+ 	uint8_t		port_enabled[HERMES_NUMPORTS_MAX];
 
 #ifdef HERMES_DEBUG_BUFFER
 	struct hermes_debug_entry dbuf[HERMES_DEBUG_BUFSIZE];
@@ -339,12 +376,14 @@
 
 static inline int hermes_enable_port(hermes_t *hw, int port)
 {
+        hw->port_enabled[port] = 1;
 	return hermes_docmd_wait(hw, HERMES_CMD_ENABLE | (port << 8),
 				 0, NULL);
 }
 
 static inline int hermes_disable_port(hermes_t *hw, int port)
 {
+        hw->port_enabled[port] = 0;
 	return hermes_docmd_wait(hw, HERMES_CMD_DISABLE | (port << 8), 
 				 0, NULL);
 }
diff -urN ppc3.orig/drivers/net/wireless/orinoco.c linux-2.4.21-ppc3/drivers/net/wireless/orinoco.c
--- ppc3.orig/drivers/net/wireless/orinoco.c	2003-06-17 07:00:36.000000000 -0500
+++ linux-2.4.21-ppc3/drivers/net/wireless/orinoco.c	2003-06-17 08:23:01.000000000 -0500
@@ -1676,6 +1676,7 @@
 	struct header_struct hdr;
 	struct ethhdr *eh;
 	int err;
+        struct ieee802_11_hdr hdr80211;
 
 	rxfid = hermes_read_regn(hw, RXFID);
 
@@ -1692,6 +1693,7 @@
 	
 	if (status & HERMES_RXSTAT_ERR) {
 		if (status & HERMES_RXSTAT_UNDECRYPTABLE) {
+                    if (dev->type != ARPHRD_ETHER) goto sniffing;
 			wstats->discard.code++;
 			DEBUG(1, "%s: Undecryptable frame on Rx. Frame dropped.\n",
 			       dev->name);
@@ -1702,7 +1704,7 @@
 		stats->rx_errors++;
 		goto drop;
 	}
-
+sniffing:
 	/* For now we ignore the 802.11 header completely, assuming
            that the card's firmware has handled anything vital */
 
@@ -1732,6 +1734,10 @@
 		stats->rx_errors++;
 		goto drop;
 	}
+	/* Now handle frame based on port# */
+	switch( HERMES_RXSTATUS_MACPORT_GET(status) )
+	{
+	case 0:
 
 	/* We need space for the packet data itself, plus an ethernet
 	   header, plus 2 bytes so we can align the IP header on a
@@ -1808,6 +1814,26 @@
 
 	return;
 
+	case 7:
+        	if ( ! HERMES_RXSTATUS_ISFCSERR(status) ) {
+                   if (hermes_bap_pread(hw, IRQ_BAP, &hdr80211, sizeof(hdr80211), 
+                                       rxfid, HERMES_RX_80211HDR_OFF)) {
+                      stats->rx_errors++;
+                   }
+                   else {
+                        /* Copy to wlansnif skb */
+                        orinoco_int_rxmonitor( priv, rxfid, length, &desc, &hdr80211);
+                   }
+                } else {
+                        printk("Received monitor frame: FCSerr set\n");
+                }
+                break;
+
+	default:
+		printk("Received frame on unsupported port=%d\n",
+			HERMES_RXSTATUS_MACPORT_GET(status) );
+		break;
+	}
  drop:	
 	stats->rx_dropped++;
 
@@ -2450,6 +2476,24 @@
 	return err;
 }
 
+//#define SET_MAC_ADDRESS
+#ifdef SET_MAC_ADDRESS
+static int
+orinoco_set_mac_address(struct net_device *dev, void *addr)
+{
+  struct orinoco_private *priv = dev->priv;
+  struct sockaddr *mac = addr;
+
+  /* Copy the address */
+  memcpy(dev->dev_addr, mac->sa_data, WLAN_ADDR_LEN);
+
+  /* Reconfig the beast */
+  orinoco_reset(priv);
+
+  return 0;
+}
+#endif	/* SET_MAC_ADDRESS */
+
 static void
 orinoco_tx_timeout(struct net_device *dev)
 {
@@ -3602,6 +3646,176 @@
 	return 0;
 }
 
+/*----------------------------------------------------------------
+* orinoco_wlansniff
+*
+* Start or stop sniffing.
+*
+* Arguments:
+*	wlandev		wlan device structure
+*	msgp		ptr to msg buffer
+*
+* Returns: 
+*	0	success and done
+*	<0	success, but we're waiting for something to finish.
+*	>0	an error occurred while handling the message.
+* Side effects:
+*
+* Call context:
+*	process thread  (usually)
+*	interrupt
+----------------------------------------------------------------*/
+static int orinoco_wlansniff(struct net_device *dev, struct iwreq *wrq)
+{
+	struct orinoco_private *priv = dev->priv;
+
+	hermes_t		*hw = &(priv->hw);
+        hermes_response_t  resp;
+	int 			result = 0;
+	uint16_t			word;
+
+	int *parms = (int *) wrq->u.name;
+	int enable = parms[0] > 0;
+	unsigned long flags;
+
+	orinoco_lock(priv, &flags);
+
+	switch (enable)
+	{
+	case P80211ENUM_truth_false:
+		/* Confirm that we're in monitor mode */
+		if ( dev->type == ARPHRD_ETHER ) {
+			result = -EFAULT;
+		}
+		/* Disable monitor mode */
+	        word =	HERMES_CMD_MONITOR | (HERMES_MONITOR_DISABLE << 8);
+	        result = hermes_docmd_wait(hw, word, 0, &resp);
+
+		if ( result ) break;
+
+		/* Disable port 0 */
+		result = hermes_disable_port(hw, 0);
+		if ( result ) break;
+
+		/* Clear the driver state */
+		dev->type = ARPHRD_ETHER;
+
+		/* Restore the wepflags */   //Orinoco doesn't like this
+/*
+		result = hermes_write_wordrec(hw, USER_BAP,
+				HERMES_RID_CNF_PRISM2_WEP_ON, 
+				priv->presniff_wepflags);
+		if ( result ) break;
+
+*/
+		/* Set the port to its prior type and enable (if necessary) */
+		if (priv->presniff_port_type != 0 ) {
+			word = priv->presniff_port_type;
+			result = hermes_write_wordrec(hw, USER_BAP, 
+				HERMES_RID_CNF_PORTTYPE, word);
+		    if ( result ) break;
+
+			/* Enable the port */
+			result = hermes_enable_port(hw, 0);
+		    if ( result ) break;
+
+		}
+
+		break;
+	case P80211ENUM_truth_true:
+             /* Re-initialize the card before changing channel as advised at
+              * http://lists.samba.org/pipermail/wireless/2002-June/004491.html
+              * by Ian Goldberg.  Implementation by Pat Swieskowski.
+              */
+//		__orinoco_down(dev);
+                hermes_set_irqmask(hw, 0);
+		hermes_init(hw);
+//		__orinoco_up(dev);
+                hermes_set_irqmask(hw, ORINOCO_INTEN);
+
+		// enable re-initialize
+//		__orinoco_stop_irqs(priv);
+//		hermes_reset(hw);
+//		__orinoco_start_irqs(priv, HERMES_EV_RX | HERMES_EV_ALLOC |
+//				   HERMES_EV_TX | HERMES_EV_TXEXC |
+//				   HERMES_EV_WTERR | HERMES_EV_INFO |
+//				   HERMES_EV_INFDROP);
+
+		/* Disable the port (if enabled), only check Port 0 */
+		if ( hw->port_enabled[0] ) {
+			/* Save macport 0 state */
+			result = hermes_read_wordrec(hw, USER_BAP,
+					HERMES_RID_CNF_PORTTYPE,
+					&(priv->presniff_port_type));
+		    if ( result ) break;
+
+			/* Save the wepflags state */
+			result = hermes_read_wordrec(hw, USER_BAP,
+					HERMES_RID_CNF_PRISM2_WEP_ON,
+					&(priv->presniff_wepflags));
+		    if ( result ) break;
+			result = hermes_disable_port(hw, 0);
+		    if ( result ) break;
+
+		}
+		else {
+			priv->presniff_port_type = 0;
+		}
+
+		/* Set the channel we wish to sniff  */
+		if (parms[1] > 0 && parms[1] < 15) {
+ 		  word = parms[1];
+		  result = hermes_write_wordrec(hw, USER_BAP, 
+				  HERMES_RID_CNF_CHANNEL, word);
+		} else {
+ 		  result = -EFAULT;
+		}
+
+		if ( result ) break;
+
+		/* Set the port type to pIbss */
+		word = HFA384x_PORTTYPE_IBSS;
+		result = hermes_write_wordrec(hw, USER_BAP, 
+				HERMES_RID_CNF_PORTTYPE, word);
+		if ( result ) break;
+
+/*
+  	        if ( (msg->keepwepflags.status == P80211ENUM_msgitem_status_data_ok) && 
+                     (msg->keepwepflags.data != P80211ENUM_truth_true)) {
+		  // Set the wepflags for no decryption   //Orinoco doesn't like this
+	          word = HFA384x_WEPFLAGS_DISABLE_TXCRYPT | 
+			     HFA384x_WEPFLAGS_DISABLE_RXCRYPT;
+		  result = hermes_write_wordrec(hw, USER_BAP, 
+				 HERMES_RID_CNF_PRISM2_WEP_ON, word); //won't work with the bits above
+                }
+		if ( result ) break;
+
+*/
+		/* Enable the port */
+		result = hermes_enable_port(hw, 0);
+		if ( result ) break;
+
+		/* Enable monitor mode */
+	        word =	HERMES_CMD_MONITOR | (HERMES_MONITOR_ENABLE << 8);
+	        result = hermes_docmd_wait(hw, word, 0, &resp);
+		if ( result ) break;
+
+		/* Set the driver state */
+		/* Do we want the prism2 header? */
+		if (parms[0] == 1)
+		  dev->type = ARPHRD_IEEE80211_PRISM;
+		else 
+		  dev->type = ARPHRD_IEEE80211;
+		break;
+	default:
+		result = -EFAULT;
+		break;
+	}
+	orinoco_unlock(priv, &flags);
+	return result;
+
+}
+
 static int
 orinoco_ioctl(struct net_device *dev, struct ifreq *rq, int cmd)
 {
@@ -3834,6 +4048,9 @@
 				{ SIOCIWFIRSTPRIV + 0x7, 0,
 				  IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1,
 				  "get_ibssport" },
+				{ SIOCIWFIRSTPRIV + 0x8,
+				  IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 2,
+				  0, "monitor" },
 				{ SIOCIWLASTPRIV, 0, 0, "dump_recs" },
 			};
 
@@ -3928,6 +4145,16 @@
 		err = orinoco_ioctl_getibssport(dev, wrq);
 		break;
 
+        case SIOCIWFIRSTPRIV + 0x8: /* set sniff (monitor) mode */ 
+		DEBUG(1, "%s: SIOCIWFIRSTPRIV + 0x8 (monitor)\n",
+		      dev->name);
+		if (! capable(CAP_NET_ADMIN)) {
+			err = -EPERM;
+			break;
+		}
+                err = orinoco_wlansniff(dev, wrq);
+		break;
+
 	case SIOCIWLASTPRIV:
 		err = orinoco_debug_dump_recs(priv);
 		if (err)
@@ -4149,6 +4376,9 @@
 	dev->tx_timeout = orinoco_tx_timeout;
 	dev->watchdog_timeo = HZ; /* 1 second timeout */
 	dev->get_stats = orinoco_get_stats;
+#ifdef SET_MAC_ADDRESS
+        dev->set_mac_address = orinoco_set_mac_address;
+#endif	/* SET_MAC_ADDRESS */
 	dev->get_wireless_stats = orinoco_get_wireless_stats;
 	dev->do_ioctl = orinoco_ioctl;
 	dev->change_mtu = orinoco_change_mtu;
@@ -4173,6 +4403,197 @@
 
 }
 
+/*----------------------------------------------------------------
+* orinoco_int_rxmonitor
+*
+* Helper function for int_rx.  Handles monitor frames.
+* Note that this function allocates space for the FCS and sets it
+* to 0xffffffff.  The hfa384x doesn't give us the FCS value but the
+* higher layers expect it.  0xffffffff is used as a flag to indicate
+* the FCS is bogus.
+*
+* Arguments:
+*	dev		wlan device structure
+*	rxfid		received FID
+*	rxdesc		rx descriptor read from card in int_rx
+*
+* Returns: 
+*	nothing
+*
+* Side effects:
+*	Allocates an skb and passes it up via the PF_PACKET interface.
+* Call context:
+*	interrupt
+----------------------------------------------------------------*/
+void orinoco_int_rxmonitor( struct orinoco_private *dev, uint16_t rxfid, int len,
+                            struct hermes_rx_descriptor *rxdesc, struct ieee802_11_hdr *hdr)
+{
+	hermes_t			*hw = &(dev->hw);
+	uint32_t				hdrlen = 0;
+	uint32_t				datalen = 0;
+	uint32_t				skblen = 0;
+	p80211msg_lnxind_wlansniffrm_t	*msg;
+	struct net_device_stats *stats = &dev->stats;
+
+
+	uint8_t				*datap;
+	uint16_t				fc;
+	struct sk_buff			*skb;
+
+	/* Don't forget the status, time, and data_len fields are in host order */
+	/* Figure out how big the frame is */
+	fc = le16_to_cpu(hdr->frame_ctl);
+	switch ( WLAN_GET_FC_FTYPE(fc) )
+	{
+	case WLAN_FTYPE_DATA:
+		if ( WLAN_GET_FC_TODS(fc) && WLAN_GET_FC_FROMDS(fc) ) {
+			hdrlen = WLAN_HDR_A4_LEN;
+		} else {
+			hdrlen = WLAN_HDR_A3_LEN;
+		}
+		datalen = len;
+		break;
+	case WLAN_FTYPE_MGMT:
+		hdrlen = WLAN_HDR_A3_LEN;
+		datalen = len;
+		break;
+	case WLAN_FTYPE_CTL:
+		switch ( WLAN_GET_FC_FSTYPE(fc) )
+		{
+		case WLAN_FSTYPE_PSPOLL:
+		case WLAN_FSTYPE_RTS:
+		case WLAN_FSTYPE_CFEND:
+		case WLAN_FSTYPE_CFENDCFACK:
+			hdrlen = 16;
+			break;
+		case WLAN_FSTYPE_CTS:
+		case WLAN_FSTYPE_ACK:
+			hdrlen = 10;
+			break;
+		}
+		datalen = 0;
+		break;
+	default:
+		printk("unknown frm: fc=0x%04x\n", fc);
+		return;
+	}
+
+	/* Allocate an ind message+framesize skb */
+	skblen = sizeof(p80211msg_lnxind_wlansniffrm_t) + 
+	  hdrlen + datalen;
+	
+	/* sanity check the length */
+	if ( skblen > 
+		(sizeof(p80211msg_lnxind_wlansniffrm_t) + 
+		WLAN_HDR_A4_LEN + WLAN_DATA_MAXLEN + WLAN_CRC_LEN) ) {
+		printk("overlen frm: len=%d\n", 
+			skblen - sizeof(p80211msg_lnxind_wlansniffrm_t));
+	}
+			
+	if ( (skb = dev_alloc_skb(skblen)) == NULL ) {
+		printk("alloc_skb failed trying to allocate %d bytes\n", skblen);
+		return;
+	}
+
+	/* only prepend the prism header if in the right mode */
+	if (dev->ndev->type != ARPHRD_IEEE80211_PRISM) {
+	  skb_put(skb, skblen - sizeof(p80211msg_lnxind_wlansniffrm_t));
+	  datap = skb->data;
+	} else {
+	  skb_put(skb, skblen);
+	  datap = skb->data + sizeof(p80211msg_lnxind_wlansniffrm_t);
+	  msg = (p80211msg_lnxind_wlansniffrm_t*)skb->data;
+	  
+	  /* Initialize the message members */
+	  msg->msgcode = DIDmsg_lnxind_wlansniffrm;
+	  msg->msglen = sizeof(p80211msg_lnxind_wlansniffrm_t);
+	  strcpy(msg->devname, dev->ndev->name);
+	  
+	  msg->hosttime.did = DIDmsg_lnxind_wlansniffrm_hosttime;
+	  msg->hosttime.status = 0;
+	  msg->hosttime.len = 4;
+	  msg->hosttime.data = jiffies;
+	  
+	  msg->mactime.did = DIDmsg_lnxind_wlansniffrm_mactime;
+	  msg->mactime.status = 0;
+	  msg->mactime.len = 4;
+	  msg->mactime.data = rxdesc->time;
+	  
+	  msg->channel.did = DIDmsg_lnxind_wlansniffrm_channel;
+	  msg->channel.status = P80211ENUM_msgitem_status_no_value;
+	  msg->channel.len = 4;
+	  msg->channel.data = 0;
+
+	  msg->rssi.did = DIDmsg_lnxind_wlansniffrm_rssi;
+	  msg->rssi.status = P80211ENUM_msgitem_status_no_value;
+	  msg->rssi.len = 4;
+	  msg->rssi.data = 0;
+	  
+	  msg->sq.did = DIDmsg_lnxind_wlansniffrm_sq;
+	  msg->sq.status = P80211ENUM_msgitem_status_no_value;
+	  msg->sq.len = 4;
+	  msg->sq.data = 0;
+	  
+	  msg->signal.did = DIDmsg_lnxind_wlansniffrm_signal;
+	  msg->signal.status = 0;
+	  msg->signal.len = 4;
+	  msg->signal.data = rxdesc->signal;
+	  
+	  msg->noise.did = DIDmsg_lnxind_wlansniffrm_noise;
+	  msg->noise.status = 0;
+	  msg->noise.len = 4;
+	  msg->noise.data = rxdesc->silence;
+
+	  msg->rate.did = DIDmsg_lnxind_wlansniffrm_rate;
+	  msg->rate.status = 0;
+	  msg->rate.len = 4;
+	  msg->rate.data = rxdesc->rate / 5; /* set to 802.11 units */
+  
+	  msg->istx.did = DIDmsg_lnxind_wlansniffrm_istx;
+	  msg->istx.status = 0;
+	  msg->istx.len = 4;
+	  msg->istx.data = P80211ENUM_truth_false;
+	  
+	  msg->frmlen.did = DIDmsg_lnxind_wlansniffrm_frmlen;
+	  msg->frmlen.status = 0;
+	  msg->frmlen.len = 4;
+	  msg->frmlen.data = hdrlen + datalen;
+	}	  
+
+	/* Copy the 802.11 header to the skb (ctl frames may be less than a full header) */
+	memcpy( datap, &(hdr->frame_ctl), hdrlen);
+
+	/* If any, copy the data from the card to the skb */
+	if ( datalen > 0 )
+	{
+		hermes_bap_pread(hw, IRQ_BAP, datap + hdrlen, (datalen+1)&~1,
+				       rxfid, HERMES_RX_DATA_OFF);
+
+		/* check for unencrypted stuff if WEP bit set. */
+		if (*(datap+1) & 0x40) // wep set
+		  if ((*(datap+hdrlen) == 0xaa) && (*(datap+hdrlen+1) == 0xaa))
+		    *(datap+1) &= 0xbf; // clear wep; it's the 802.2 header!
+	}
+
+       /* pass it up via the PF_PACKET interface */
+       {
+	   skb->dev = dev->ndev;
+	   skb->dev->last_rx = jiffies;
+
+	   skb->mac.raw = skb->data ;
+	   skb->ip_summed = CHECKSUM_NONE;
+	   skb->pkt_type = PACKET_OTHERHOST;
+	   skb->protocol = htons(ETH_P_80211_RAW);  /* XXX ETH_P_802_2? */
+
+	   stats->rx_packets++;
+	   stats->rx_bytes += skb->len;
+
+	   netif_rx(skb);
+       }
+
+	return;
+}
+
 /********************************************************************/
 /* Module initialization                                            */
 /********************************************************************/
diff -urN ppc3.orig/drivers/net/wireless/orinoco.h linux-2.4.21-ppc3/drivers/net/wireless/orinoco.h
--- ppc3.orig/drivers/net/wireless/orinoco.h	2003-06-17 07:00:36.000000000 -0500
+++ linux-2.4.21-ppc3/drivers/net/wireless/orinoco.h	2003-06-17 08:23:01.000000000 -0500
@@ -28,6 +28,20 @@
 /* To enable debug messages */
 //#define ORINOCO_DEBUG		3
 
+#ifndef ETH_P_ECONET
+#define ETH_P_ECONET   0x0018    /* needed for 2.2.x kernels */
+#endif
+
+#define ETH_P_80211_RAW        (ETH_P_ECONET + 1)
+
+#ifndef ARPHRD_IEEE80211
+#define ARPHRD_IEEE80211 801     /* kernel 2.4.6 */
+#endif
+
+#ifndef ARPHRD_IEEE80211_PRISM  /* kernel 2.4.18 */
+#define ARPHRD_IEEE80211_PRISM 802
+#endif
+
 #if (! defined (WIRELESS_EXT)) || (WIRELESS_EXT < 10)
 #error "orinoco driver requires Wireless extensions v10 or later."
 #endif /* (! defined (WIRELESS_EXT)) || (WIRELESS_EXT < 10) */
@@ -45,6 +59,158 @@
 				HERMES_EV_TXEXC | HERMES_EV_WTERR | HERMES_EV_INFO | \
 				HERMES_EV_INFDROP )
 
+#define WLAN_DEVNAMELEN_MAX 16
+
+/* message data item for INT, BOUNDEDINT, ENUMINT */
+typedef struct p80211item_uint32
+{
+	uint32_t		did		__attribute__ ((packed));
+	uint16_t		status	__attribute__ ((packed));
+	uint16_t		len		__attribute__ ((packed));
+	uint32_t		data	__attribute__ ((packed));
+} __attribute__ ((packed)) p80211item_uint32_t;
+
+typedef struct p80211msg
+{
+	uint32_t	msgcode		__attribute__ ((packed));
+	uint32_t	msglen		__attribute__ ((packed));
+	uint8_t	devname[WLAN_DEVNAMELEN_MAX]	__attribute__ ((packed));
+} __attribute__ ((packed)) p80211msg_t;
+
+#define DIDmsg_lnxind_wlansniffrm 0x0041
+#define DIDmsg_lnxind_wlansniffrm_hosttime 0x1041
+#define DIDmsg_lnxind_wlansniffrm_mactime 0x2041
+#define DIDmsg_lnxind_wlansniffrm_channel 0x3041
+#define DIDmsg_lnxind_wlansniffrm_rssi 0x4041
+#define DIDmsg_lnxind_wlansniffrm_sq 0x5041
+#define DIDmsg_lnxind_wlansniffrm_signal 0x6041
+#define DIDmsg_lnxind_wlansniffrm_noise 0x7041
+#define DIDmsg_lnxind_wlansniffrm_rate 0x8041
+#define DIDmsg_lnxind_wlansniffrm_istx 0x9041
+#define DIDmsg_lnxind_wlansniffrm_frmlen 0xA041
+
+typedef struct p80211msg_lnxind_wlansniffrm
+{
+	uint32_t		msgcode;
+	uint32_t		msglen;
+	uint8_t		    devname[WLAN_DEVNAMELEN_MAX];
+	p80211item_uint32_t	hosttime;
+	p80211item_uint32_t	mactime;
+	p80211item_uint32_t	channel;
+	p80211item_uint32_t	rssi;
+	p80211item_uint32_t	sq;
+	p80211item_uint32_t	signal;
+	p80211item_uint32_t	noise;
+	p80211item_uint32_t	rate;
+	p80211item_uint32_t	istx;
+	p80211item_uint32_t	frmlen;
+} __attribute__ ((packed)) p80211msg_lnxind_wlansniffrm_t;
+
+#define P80211ENUM_truth_false			0
+#define P80211ENUM_truth_true			1
+#define P80211ENUM_resultcode_success		1
+#define P80211ENUM_resultcode_invalid_parameters	2
+#define P80211ENUM_resultcode_not_supported	3
+#define P80211ENUM_resultcode_timeout		4
+#define P80211ENUM_resultcode_too_many_req	5
+#define P80211ENUM_resultcode_refused		6
+#define P80211ENUM_resultcode_bss_already	7
+#define P80211ENUM_resultcode_invalid_access	8
+#define P80211ENUM_resultcode_invalid_mibattribute	9
+#define P80211ENUM_resultcode_cant_set_readonly_mib	10
+#define P80211ENUM_resultcode_implementation_failure	11
+#define P80211ENUM_resultcode_cant_get_writeonly_mib	12
+#define P80211ENUM_msgitem_status_data_ok		0
+#define P80211ENUM_msgitem_status_no_value		1
+#define P80211ENUM_msgitem_status_invalid_itemname	2
+#define P80211ENUM_msgitem_status_invalid_itemdata	3
+#define P80211ENUM_msgitem_status_missing_itemdata	4
+#define P80211ENUM_msgitem_status_incomplete_itemdata	5
+#define P80211ENUM_msgitem_status_invalid_msg_did	6
+#define P80211ENUM_msgitem_status_invalid_mib_did	7
+#define P80211ENUM_msgitem_status_missing_conv_func	8
+#define P80211ENUM_msgitem_status_string_too_long	9
+#define P80211ENUM_msgitem_status_data_out_of_range	10
+#define P80211ENUM_msgitem_status_string_too_short	11
+#define P80211ENUM_msgitem_status_missing_valid_func	12
+#define P80211ENUM_msgitem_status_unknown		13
+#define P80211ENUM_msgitem_status_invalid_did		14
+#define P80211ENUM_msgitem_status_missing_print_func	15
+
+#define WLAN_GET_FC_FTYPE(n)	(((n) & 0x0C) >> 2)
+#define WLAN_GET_FC_FSTYPE(n)	(((n) & 0xF0) >> 4)
+#define WLAN_GET_FC_TODS(n) 	(((n) & 0x0100) >> 8)
+#define WLAN_GET_FC_FROMDS(n)	(((n) & 0x0200) >> 9)
+
+/*--- Sizes -----------------------------------------------*/
+#define WLAN_ADDR_LEN			6
+#define WLAN_CRC_LEN			4
+#define WLAN_BSSID_LEN			6
+#define WLAN_BSS_TS_LEN			8
+#define WLAN_HDR_A3_LEN			24
+#define WLAN_HDR_A4_LEN			30
+#define WLAN_SSID_MAXLEN		32
+#define WLAN_DATA_MAXLEN		2312
+
+/*--- Frame Control Field -------------------------------------*/
+/* Frame Types */
+#define WLAN_FTYPE_MGMT			0x00
+#define WLAN_FTYPE_CTL			0x01
+#define WLAN_FTYPE_DATA			0x02
+
+/* Frame subtypes */
+/* Management */
+#define WLAN_FSTYPE_ASSOCREQ		0x00
+#define WLAN_FSTYPE_ASSOCRESP		0x01
+#define WLAN_FSTYPE_REASSOCREQ		0x02
+#define WLAN_FSTYPE_REASSOCRESP		0x03
+#define WLAN_FSTYPE_PROBEREQ		0x04 
+#define WLAN_FSTYPE_PROBERESP		0x05
+#define WLAN_FSTYPE_BEACON		0x08
+#define WLAN_FSTYPE_ATIM		0x09
+#define WLAN_FSTYPE_DISASSOC		0x0a
+#define WLAN_FSTYPE_AUTHEN		0x0b
+#define WLAN_FSTYPE_DEAUTHEN		0x0c
+
+/* Control */
+#define WLAN_FSTYPE_PSPOLL		0x0a
+#define WLAN_FSTYPE_RTS			0x0b
+#define WLAN_FSTYPE_CTS			0x0c
+#define WLAN_FSTYPE_ACK			0x0d
+#define WLAN_FSTYPE_CFEND		0x0e
+#define WLAN_FSTYPE_CFENDCFACK		0x0f
+
+/* Data */
+#define WLAN_FSTYPE_DATAONLY		0x00
+#define WLAN_FSTYPE_DATA_CFACK		0x01
+#define WLAN_FSTYPE_DATA_CFPOLL		0x02
+#define WLAN_FSTYPE_DATA_CFACK_CFPOLL	0x03
+#define WLAN_FSTYPE_NULL		0x04
+#define WLAN_FSTYPE_CFACK		0x05
+#define WLAN_FSTYPE_CFPOLL		0x06
+#define WLAN_FSTYPE_CFACK_CFPOLL	0x07
+
+/*----------------------------------------------------------------*/
+/* Magic number, a quick test to see we're getting the desired struct */
+
+#define P80211_IOCTL_MAGIC	(0x4a2d464dUL)
+
+/*================================================================*/
+/* Types */
+
+/*----------------------------------------------------------------*/
+/* A ptr to the following structure type is passed as the third */
+/*  argument to the ioctl system call when issuing a request to */
+/*  the p80211 module. */
+
+typedef struct p80211ioctl_req
+{
+	char 	name[WLAN_DEVNAMELEN_MAX] __attribute__ ((packed));
+	void	*data 		__attribute__ ((packed));
+	uint32_t	magic 	__attribute__ ((packed));
+	uint16_t	len 	__attribute__ ((packed));
+	uint32_t	result 	__attribute__ ((packed));
+} __attribute__ ((packed)) p80211ioctl_req_t;
 
 struct orinoco_private {
 	void *card;	/* Pointer to card dependant structure */
@@ -107,6 +273,9 @@
 	/* Configuration dependent variables */
 	int port_type, createibss;
 	int promiscuous, mc_count;
+
+	uint16_t		presniff_port_type;
+	uint16_t		presniff_wepflags;
 };
 
 #ifdef ORINOCO_DEBUG
@@ -154,4 +323,13 @@
 	spin_unlock_irqrestore(&priv->lock, *flags);
 }
 
+/*================================================================*/
+/* Function Declarations */
+
+struct ieee802_11_hdr;
+
+void orinoco_int_rxmonitor( struct orinoco_private *dev, uint16_t rxfid, int len,
+                            struct hermes_rx_descriptor *rxdesc, struct ieee802_11_hdr *hdr);
+
+
 #endif /* _ORINOCO_H */