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Diffstat (limited to 'net/ieee80211/softmac/ieee80211softmac_io.c')
-rw-r--r--net/ieee80211/softmac/ieee80211softmac_io.c488
1 files changed, 0 insertions, 488 deletions
diff --git a/net/ieee80211/softmac/ieee80211softmac_io.c b/net/ieee80211/softmac/ieee80211softmac_io.c
deleted file mode 100644
index 73b4b13fbd8f..000000000000
--- a/net/ieee80211/softmac/ieee80211softmac_io.c
+++ /dev/null
@@ -1,488 +0,0 @@
-/*
- * Some parts based on code from net80211
- * Copyright (c) 2001 Atsushi Onoe
- * Copyright (c) 2002-2005 Sam Leffler, Errno Consulting
- * All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- *    notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- *    notice, this list of conditions and the following disclaimer in the
- *    documentation and/or other materials provided with the distribution.
- * 3. The name of the author may not be used to endorse or promote products
- *    derived from this software without specific prior written permission.
- *
- * Alternatively, this software may be distributed under the terms of the
- * GNU General Public License ("GPL") version 2 as published by the Free
- * Software Foundation.
- *
- * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
- * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
- * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
- * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
- * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
- * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
- * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
- * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
- * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
- * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- *
- */
-
-#include "ieee80211softmac_priv.h"
-
-/* Helper functions for inserting data into the frames */
-
-/*
- * Adds an ESSID element to the frame
- *
- */
-static u8 *
-ieee80211softmac_add_essid(u8 *dst, struct ieee80211softmac_essid *essid)
-{
-	if (essid) {
-		*dst++ = MFIE_TYPE_SSID;
-		*dst++ = essid->len;
-		memcpy(dst, essid->data, essid->len);
-		return dst+essid->len;
-	} else {
-		*dst++ = MFIE_TYPE_SSID;
-		*dst++ = 0;
-		return dst;
-	}
-}
-
-/* Adds Supported Rates and if required Extended Rates Information Element
- * to the frame, ASSUMES WE HAVE A SORTED LIST OF RATES */
-static u8 *
-ieee80211softmac_frame_add_rates(u8 *dst, const struct ieee80211softmac_ratesinfo *r)
-{
-	int cck_len, ofdm_len;
-	*dst++ = MFIE_TYPE_RATES;
-
-	for(cck_len=0; ieee80211_is_cck_rate(r->rates[cck_len]) && (cck_len < r->count);cck_len++);
-
-	if(cck_len > IEEE80211SOFTMAC_MAX_RATES_LEN)
-		cck_len = IEEE80211SOFTMAC_MAX_RATES_LEN;
-	*dst++ = cck_len;
-	memcpy(dst, r->rates, cck_len);
-	dst += cck_len;
-
-	if(cck_len < r->count){
-		for (ofdm_len=0; ieee80211_is_ofdm_rate(r->rates[ofdm_len + cck_len]) && (ofdm_len + cck_len < r->count); ofdm_len++);
-		if (ofdm_len > 0) {
-			if (ofdm_len > IEEE80211SOFTMAC_MAX_EX_RATES_LEN)
-				ofdm_len = IEEE80211SOFTMAC_MAX_EX_RATES_LEN;
-			*dst++ = MFIE_TYPE_RATES_EX;
-			*dst++ = ofdm_len;
-			memcpy(dst, r->rates + cck_len, ofdm_len);
-			dst += ofdm_len;
-		}
-	}
-	return dst;
-}
-
-/* Allocate a management frame */
-static u8 *
-ieee80211softmac_alloc_mgt(u32 size)
-{
-	u8 * data;
-
-	/* Add the header and FCS to the size */
-	size = size + IEEE80211_3ADDR_LEN;
-	if(size > IEEE80211_DATA_LEN)
-		return NULL;
-	/* Allocate the frame */
-	data = kzalloc(size, GFP_ATOMIC);
-	return data;
-}
-
-/*
- * Add a 2 Address Header
- */
-static void
-ieee80211softmac_hdr_2addr(struct ieee80211softmac_device *mac,
-	struct ieee80211_hdr_2addr *header, u32 type, u8 *dest)
-{
-	/* Fill in the frame control flags */
-	header->frame_ctl = cpu_to_le16(type);
-	/* Control packets always have WEP turned off */
-	if(type > IEEE80211_STYPE_CFENDACK && type < IEEE80211_STYPE_PSPOLL)
-		header->frame_ctl |= mac->ieee->sec.level ? cpu_to_le16(IEEE80211_FCTL_PROTECTED) : 0;
-
-	/* Fill in the duration */
-	header->duration_id = 0;
-	/* FIXME: How do I find this?
-	 * calculate. But most drivers just fill in 0 (except if it's a station id of course) */
-
-	/* Fill in the Destination Address */
-	if(dest == NULL)
-		memset(header->addr1, 0xFF, ETH_ALEN);
-	else
-		memcpy(header->addr1, dest, ETH_ALEN);
-	/* Fill in the Source Address */
-	memcpy(header->addr2, mac->ieee->dev->dev_addr, ETH_ALEN);
-
-}
-
-
-/* Add a 3 Address Header */
-static void
-ieee80211softmac_hdr_3addr(struct ieee80211softmac_device *mac,
-	struct ieee80211_hdr_3addr *header, u32 type, u8 *dest, u8 *bssid)
-{
-	/* This is common with 2addr, so use that instead */
-	ieee80211softmac_hdr_2addr(mac, (struct ieee80211_hdr_2addr *)header, type, dest);
-
-	/* Fill in the BSS ID */
-	if(bssid == NULL)
-		memset(header->addr3, 0xFF, ETH_ALEN);
-	else
-		memcpy(header->addr3, bssid, ETH_ALEN);
-
-	/* Fill in the sequence # */
-	/* FIXME: I need to add this to the softmac struct
-	 * shouldn't the sequence number be in ieee80211? */
-}
-
-static __le16
-ieee80211softmac_capabilities(struct ieee80211softmac_device *mac,
-	struct ieee80211softmac_network *net)
-{
-	__le16 capability = 0;
-
-	/* ESS and IBSS bits are set according to the current mode */
-	switch (mac->ieee->iw_mode) {
-	case IW_MODE_INFRA:
-		capability = cpu_to_le16(WLAN_CAPABILITY_ESS);
-		break;
-	case IW_MODE_ADHOC:
-		capability = cpu_to_le16(WLAN_CAPABILITY_IBSS);
-		break;
-	case IW_MODE_AUTO:
-		capability = cpu_to_le16(net->capabilities &
-			(WLAN_CAPABILITY_ESS|WLAN_CAPABILITY_IBSS));
-		break;
-	default:
-		/* bleh. we don't ever go to these modes */
-		printk(KERN_ERR PFX "invalid iw_mode!\n");
-		break;
-	}
-
-	/* CF Pollable / CF Poll Request */
-	/* Needs to be implemented, for now, the 0's == not supported */
-
-	/* Privacy Bit */
-	capability |= mac->ieee->sec.level ?
-		cpu_to_le16(WLAN_CAPABILITY_PRIVACY) : 0;
-
-	/* Short Preamble */
-	/* Always supported: we probably won't ever be powering devices which
-	 * dont support this... */
-	capability |= cpu_to_le16(WLAN_CAPABILITY_SHORT_PREAMBLE);
-
-	/* PBCC */
-	/* Not widely used */
-
-	/* Channel Agility */
-	/* Not widely used */
-
-	/* Short Slot */
-	/* Will be implemented later */
-
-	/* DSSS-OFDM */
-	/* Not widely used */
-
-	return capability;
-}
-
-/*****************************************************************************
- * Create Management packets
- *****************************************************************************/
-
-/* Creates an association request packet */
-static u32
-ieee80211softmac_assoc_req(struct ieee80211_assoc_request **pkt,
-	struct ieee80211softmac_device *mac, struct ieee80211softmac_network *net)
-{
-	u8 *data;
-	(*pkt) = (struct ieee80211_assoc_request *)ieee80211softmac_alloc_mgt(
-		2 +		/* Capability Info */
-		2 +	 	/* Listen Interval */
-		/* SSID IE */
-		1 + 1 + IW_ESSID_MAX_SIZE +
-		/* Rates IE */
-		1 + 1 + IEEE80211SOFTMAC_MAX_RATES_LEN +
-		/* Extended Rates IE */
-		1 + 1 + IEEE80211SOFTMAC_MAX_EX_RATES_LEN +
-		/* WPA IE if present */
-		mac->wpa.IElen
-		/* Other IE's?  Optional?
-		 * Yeah, probably need an extra IE parameter -- lots of vendors like to
-		 * fill in their own IEs */
-	);
-	if (unlikely((*pkt) == NULL))
-		return 0;
-	ieee80211softmac_hdr_3addr(mac, &((*pkt)->header), IEEE80211_STYPE_ASSOC_REQ, net->bssid, net->bssid);
-
-	/* Fill in the capabilities */
-	(*pkt)->capability = ieee80211softmac_capabilities(mac, net);
-
-	/* Fill in Listen Interval (?) */
-	(*pkt)->listen_interval = cpu_to_le16(10);
-
-	data = (u8 *)(*pkt)->info_element;
-	/* Add SSID */
-	data = ieee80211softmac_add_essid(data, &net->essid);
-	/* Add Rates */
-	data = ieee80211softmac_frame_add_rates(data, &mac->ratesinfo);
-	/* Add WPA IE */
-	if (mac->wpa.IElen && mac->wpa.IE) {
-		memcpy(data, mac->wpa.IE, mac->wpa.IElen);
-		data += mac->wpa.IElen;
-	}
-	/* Return the number of used bytes */
-	return (data - (u8*)(*pkt));
-}
-
-/* Create a reassociation request packet */
-static u32
-ieee80211softmac_reassoc_req(struct ieee80211_reassoc_request **pkt,
-	struct ieee80211softmac_device *mac, struct ieee80211softmac_network *net)
-{
-	u8 *data;
-	(*pkt) = (struct ieee80211_reassoc_request *)ieee80211softmac_alloc_mgt(
-		2 +		/* Capability Info */
-		2 +	 	/* Listen Interval */
-		ETH_ALEN +	/* AP MAC */
-		/* SSID IE */
-		1 + 1 + IW_ESSID_MAX_SIZE +
-		/* Rates IE */
-		1 + 1 + IEEE80211SOFTMAC_MAX_RATES_LEN +
-		/* Extended Rates IE */
-		1 + 1 + IEEE80211SOFTMAC_MAX_EX_RATES_LEN
-		/* Other IE's? */
-	);
-	if (unlikely((*pkt) == NULL))
-		return 0;
-	ieee80211softmac_hdr_3addr(mac, &((*pkt)->header), IEEE80211_STYPE_REASSOC_REQ, net->bssid, net->bssid);
-
-	/* Fill in the capabilities */
-	(*pkt)->capability = ieee80211softmac_capabilities(mac, net);
-
-	/* Fill in Listen Interval (?) */
-	(*pkt)->listen_interval = cpu_to_le16(10);
-	/* Fill in the current AP MAC */
-	memcpy((*pkt)->current_ap, mac->ieee->bssid, ETH_ALEN);
-
-	data = (u8 *)(*pkt)->info_element;
-	/* Add SSID */
-	data = ieee80211softmac_add_essid(data, &net->essid);
-	/* Add Rates */
-	data = ieee80211softmac_frame_add_rates(data, &mac->ratesinfo);
-	/* Return packet size */
-	return (data - (u8 *)(*pkt));
-}
-
-/* Create an authentication packet */
-static u32
-ieee80211softmac_auth(struct ieee80211_auth **pkt,
-	struct ieee80211softmac_device *mac, struct ieee80211softmac_network *net,
-	u16 transaction, u16 status, int *encrypt_mpdu)
-{
-	u8 *data;
-	int auth_mode = mac->ieee->sec.auth_mode;
-	int is_shared_response = (auth_mode == WLAN_AUTH_SHARED_KEY
-		&& transaction == IEEE80211SOFTMAC_AUTH_SHARED_RESPONSE);
-
-	/* Allocate Packet */
-	(*pkt) = (struct ieee80211_auth *)ieee80211softmac_alloc_mgt(
-		2 +		/* Auth Algorithm */
-		2 +		/* Auth Transaction Seq */
-		2 +		/* Status Code */
-		 /* Challenge Text IE */
-		(is_shared_response ? 1 + 1 + net->challenge_len : 0)
-	);
-	if (unlikely((*pkt) == NULL))
-		return 0;
-	ieee80211softmac_hdr_3addr(mac, &((*pkt)->header), IEEE80211_STYPE_AUTH, net->bssid, net->bssid);
-
-	/* Algorithm */
-	(*pkt)->algorithm = cpu_to_le16(auth_mode);
-	/* Transaction */
-	(*pkt)->transaction = cpu_to_le16(transaction);
-	/* Status */
-	(*pkt)->status = cpu_to_le16(status);
-
-	data = (u8 *)(*pkt)->info_element;
-	/* Challenge Text */
-	if (is_shared_response) {
-		*data = MFIE_TYPE_CHALLENGE;
-		data++;
-
-		/* Copy the challenge in */
-		*data = net->challenge_len;
-		data++;
-		memcpy(data, net->challenge, net->challenge_len);
-		data += net->challenge_len;
-
-		/* Make sure this frame gets encrypted with the shared key */
-		*encrypt_mpdu = 1;
-	} else
-		*encrypt_mpdu = 0;
-
-	/* Return the packet size */
-	return (data - (u8 *)(*pkt));
-}
-
-/* Create a disassocation or deauthentication packet */
-static u32
-ieee80211softmac_disassoc_deauth(struct ieee80211_disassoc **pkt,
-	struct ieee80211softmac_device *mac, struct ieee80211softmac_network *net,
-	u16 type, u16 reason)
-{
-	/* Allocate Packet */
-	(*pkt) = (struct ieee80211_disassoc *)ieee80211softmac_alloc_mgt(2);
-	if (unlikely((*pkt) == NULL))
-		return 0;
-	ieee80211softmac_hdr_3addr(mac, &((*pkt)->header), type, net->bssid, net->bssid);
-	/* Reason */
-	(*pkt)->reason = cpu_to_le16(reason);
-	/* Return the packet size */
-	return (2 + IEEE80211_3ADDR_LEN);
-}
-
-/* Create a probe request packet */
-static u32
-ieee80211softmac_probe_req(struct ieee80211_probe_request **pkt,
-	struct ieee80211softmac_device *mac, struct ieee80211softmac_essid *essid)
-{
-	u8 *data;
-	/* Allocate Packet */
-	(*pkt) = (struct ieee80211_probe_request *)ieee80211softmac_alloc_mgt(
-		/* SSID of requested network */
-		1 + 1 + IW_ESSID_MAX_SIZE +
-		/* Rates IE */
-		1 + 1 + IEEE80211SOFTMAC_MAX_RATES_LEN +
-		/* Extended Rates IE */
-		1 + 1 + IEEE80211SOFTMAC_MAX_EX_RATES_LEN
-	);
-	if (unlikely((*pkt) == NULL))
-		return 0;
-	ieee80211softmac_hdr_3addr(mac, &((*pkt)->header), IEEE80211_STYPE_PROBE_REQ, NULL, NULL);
-
-	data = (u8 *)(*pkt)->info_element;
-	/* Add ESSID (can be NULL) */
-	data = ieee80211softmac_add_essid(data, essid);
-	/* Add Rates */
-	data = ieee80211softmac_frame_add_rates(data, &mac->ratesinfo);
-	/* Return packet size */
-	return (data - (u8 *)(*pkt));
-}
-
-/* Create a probe response packet */
-/* FIXME: Not complete */
-static u32
-ieee80211softmac_probe_resp(struct ieee80211_probe_response **pkt,
-	struct ieee80211softmac_device *mac, struct ieee80211softmac_network *net)
-{
-	u8 *data;
-	/* Allocate Packet */
-	(*pkt) = (struct ieee80211_probe_response *)ieee80211softmac_alloc_mgt(
-		8 +		/* Timestamp */
-		2 +		/* Beacon Interval */
-		2 +		/* Capability Info */
-				/* SSID IE */
-		1 + 1 + IW_ESSID_MAX_SIZE +
-		7 + 		/* FH Parameter Set */
-		2 +		/* DS Parameter Set */
-		8 +		/* CF Parameter Set */
-		4 		/* IBSS Parameter Set */
-	);
-	if (unlikely((*pkt) == NULL))
-		return 0;
-	ieee80211softmac_hdr_3addr(mac, &((*pkt)->header), IEEE80211_STYPE_PROBE_RESP, net->bssid, net->bssid);
-	data = (u8 *)(*pkt)->info_element;
-
-	/* Return the packet size */
-	return (data - (u8 *)(*pkt));
-}
-
-
-/* Sends a manangement packet
- * FIXME: document the use of the arg parameter
- * for _AUTH: (transaction #) | (status << 16)
- */
-int
-ieee80211softmac_send_mgt_frame(struct ieee80211softmac_device *mac,
-	void *ptrarg, u32 type, u32 arg)
-{
-	void *pkt = NULL;
-	u32 pkt_size = 0;
-	int encrypt_mpdu = 0;
-
-	switch(type) {
-	case IEEE80211_STYPE_ASSOC_REQ:
-		pkt_size = ieee80211softmac_assoc_req((struct ieee80211_assoc_request **)(&pkt), mac, (struct ieee80211softmac_network *)ptrarg);
-		break;
-	case IEEE80211_STYPE_REASSOC_REQ:
-		pkt_size = ieee80211softmac_reassoc_req((struct ieee80211_reassoc_request **)(&pkt), mac, (struct ieee80211softmac_network *)ptrarg);
-		break;
-	case IEEE80211_STYPE_AUTH:
-		pkt_size = ieee80211softmac_auth((struct ieee80211_auth **)(&pkt), mac, (struct ieee80211softmac_network *)ptrarg, (u16)(arg & 0xFFFF), (u16) (arg >> 16), &encrypt_mpdu);
-		break;
-	case IEEE80211_STYPE_DISASSOC:
-	case IEEE80211_STYPE_DEAUTH:
-		pkt_size = ieee80211softmac_disassoc_deauth((struct ieee80211_disassoc **)(&pkt), mac, (struct ieee80211softmac_network *)ptrarg, type, (u16)(arg & 0xFFFF));
-		break;
-	case IEEE80211_STYPE_PROBE_REQ:
-		pkt_size = ieee80211softmac_probe_req((struct ieee80211_probe_request **)(&pkt), mac, (struct ieee80211softmac_essid *)ptrarg);
-		break;
-	case IEEE80211_STYPE_PROBE_RESP:
-		pkt_size = ieee80211softmac_probe_resp((struct ieee80211_probe_response **)(&pkt), mac, (struct ieee80211softmac_network *)ptrarg);
-		break;
-	default:
-		printkl(KERN_DEBUG PFX "Unsupported Management Frame type: %i\n", type);
-		return -EINVAL;
-	};
-
-	if(pkt_size == 0 || pkt == NULL) {
-		printkl(KERN_DEBUG PFX "Error, packet is nonexistant or 0 length\n");
-		return -ENOMEM;
-	}
-
-	/* Send the packet to the ieee80211 layer for tx */
-	/* we defined softmac->mgmt_xmit for this. Should we keep it
-	 * as it is (that means we'd need to wrap this into a txb),
-	 * modify the prototype (so it matches this function),
-	 * or get rid of it alltogether?
-	 * Does this work for you now?
-	 */
-	ieee80211_tx_frame(mac->ieee, (struct ieee80211_hdr *)pkt,
-		IEEE80211_3ADDR_LEN, pkt_size, encrypt_mpdu);
-
-	kfree(pkt);
-	return 0;
-}
-
-/* Beacon handling */
-int ieee80211softmac_handle_beacon(struct net_device *dev,
-	struct ieee80211_beacon *beacon,
-	struct ieee80211_network *network)
-{
-	struct ieee80211softmac_device *mac = ieee80211_priv(dev);
-
-	/* This might race, but we don't really care and it's not worth
-	 * adding heavyweight locking in this fastpath.
-	 */
-	if (mac->associnfo.associated) {
-		if (memcmp(network->bssid, mac->associnfo.bssid, ETH_ALEN) == 0)
-			ieee80211softmac_process_erp(mac, network->erp_value);
-	}
-
-	return 0;
-}
-
generated by cgit-pink 1.4.1 (git 2.36.1) at 2024-09-25 09:10:34 +0000