From patchwork Tue Oct 6 14:33:08 2009 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Holger Schurig X-Patchwork-Id: 51941 Received: from vger.kernel.org (vger.kernel.org [209.132.176.167]) by demeter.kernel.org (8.14.2/8.14.2) with ESMTP id n96Eealu011579 for ; Tue, 6 Oct 2009 14:40:37 GMT Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S932762AbZJFOed (ORCPT ); Tue, 6 Oct 2009 10:34:33 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S932763AbZJFOed (ORCPT ); Tue, 6 Oct 2009 10:34:33 -0400 Received: from mx51.mymxserver.com ([85.199.173.110]:6122 "EHLO mx51.mymxserver.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S932756AbZJFOeb (ORCPT ); Tue, 6 Oct 2009 10:34:31 -0400 Received: from localhost (localhost [127.0.0.1]) by localhost.mx51.mymxserver.com (Postfix) with ESMTP id E681C5000D for ; Tue, 6 Oct 2009 16:33:23 +0200 (CEST) X-Virus-Scanned: by Mittwald Mailscanner Received: from mx51.mymxserver.com ([127.0.0.1]) by localhost (mx51.mymxserver.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id OdHXjPIIKill for ; Tue, 6 Oct 2009 16:33:23 +0200 (CEST) Received: from lin01.mn-solutions.de (pD95F9373.dip0.t-ipconnect.de [217.95.147.115]) by mx51.mymxserver.com (Postfix) with ESMTP id 4B03C50006 for ; Tue, 6 Oct 2009 16:33:22 +0200 (CEST) Received: by lin01.mn-solutions.de (Postfix, from userid 116) id DAA751E0050; Tue, 6 Oct 2009 16:33:21 +0200 (CEST) X-Spam-Checker-Version: SpamAssassin 3.1.7-deb3 (2006-10-05) on lin01.mn-logistik.de X-Spam-Level: X-Spam-Status: No, score=-4.4 required=5.0 tests=ALL_TRUSTED,AWL,BAYES_00 autolearn=ham version=3.1.7-deb3 Received: from mnz66.mn-solutions.de (mnz66.mn-solutions.de [192.168.233.66]) by lin01.mn-solutions.de (Postfix) with ESMTP id 9F02F1E0036 for ; Tue, 6 Oct 2009 16:33:11 +0200 (CEST) From: Holger Schurig To: "linux-wireless" Subject: [WIP, RFC] libertas: allow scanning via "iw" Date: Tue, 6 Oct 2009 16:33:08 +0200 User-Agent: KMail/1.9.7 MIME-Version: 1.0 Content-Disposition: inline Message-Id: <200910061633.08237.hs4233@mail.mn-solutions.de> Sender: linux-wireless-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-wireless@vger.kernel.org Index: linux-wl/drivers/net/wireless/libertas/cfg.c =================================================================== --- linux-wl.orig/drivers/net/wireless/libertas/cfg.c 2009-10-06 15:23:34.000000000 +0200 +++ linux-wl/drivers/net/wireless/libertas/cfg.c 2009-10-06 15:23:48.000000000 +0200 @@ -7,9 +7,34 @@ */ #include +#include #include "cfg.h" #include "cmd.h" +#include "host.h" + +/* + * When scanning, the firmware doesn't send a nul packet with the power-safe + * bit on to the AP. So we cannot stay away from our current channel too + * long, otherwise we loose data. So take a "nap" while scanning every other + * while. + */ +#define LBS_SCAN_MAX_CHANNELS_BEFORE_NAP 4 + +/* Memory needed to store a max sized channel List TLV for a firmware scan */ +#define CHAN_TLV_MAX_SIZE (sizeof(struct mrvl_ie_header) \ + + (MRVDRV_MAX_CHANNELS_PER_SCAN \ + * sizeof(struct chanscanparamset))) + +/* Memory needed to store a max number/size SSID TLV for a firmware scan */ +#define SSID_TLV_MAX_SIZE (1 * sizeof(struct mrvl_ie_ssid_param_set)) + +/* Maximum memory needed for a cmd_ds_802_11_scan with all TLVs at max */ +#define MAX_SCAN_CFG_ALLOC (sizeof(struct cmd_ds_802_11_scan) \ + + CHAN_TLV_MAX_SIZE + SSID_TLV_MAX_SIZE) + +/* Scan time specified in the channel TLV for each channel for active scans */ +#define MRVDRV_ACTIVE_SCAN_CHAN_TIME 100 #define CHAN2G(_channel, _freq, _flags) { \ @@ -77,6 +102,10 @@ static const u32 cipher_suites[] = { +/*************************************************************************** + * Set Channel + */ + static int lbs_cfg_set_channel(struct wiphy *wiphy, struct ieee80211_channel *chan, enum nl80211_channel_type channel_type) @@ -97,10 +126,374 @@ static int lbs_cfg_set_channel(struct wi } +/*************************************************************************** + * Scanning + */ + +static int lbs_ret_scan(struct lbs_private *priv, unsigned long dummy, + struct cmd_header *resp) +{ + struct cmd_ds_802_11_scan_rsp *scanresp = (void *)resp; + int bsssize; + u8 *pos; + uint16_t nr_sets; + u8 *tsfdesc; + int tsfsize; + int i; + int ret = -EILSEQ; + + bsssize = get_unaligned_le16(&scanresp->bssdescriptsize); + nr_sets = le16_to_cpu(resp->size); + + /* The general layout of the scan response is described in + * chapter 5.7.1. Basically we have common part, then + * one data section for each returned BSS, and then again + * one data section containing TSFs. Sample: + * + * cmd_ds_802_11_scan_rsp + * cmd_header + * pos_size + * nr_sets + * bssdesc 1 + * bssid + * rssi + * intvl + * capa + * IEs + * bssdesc 2 + * bssdesc n + * MrvlIEtypes_TsfFimestamp_t + * TSF for BSS 1 + * TSF for BSS 2 + * TSF for BSS n + */ + + pos = scanresp->bssdesc_and_tlvbuffer; + + tsfdesc = pos + bsssize; + tsfsize = 4 + 8 * scanresp->nr_sets; + + /* Validity check: we expect a Marvell-Local IE */ + i = get_unaligned_le16(tsfdesc); + tsfdesc += 2; + if (i != 0x0113) + goto done; + /* Validity check: the IE holds TSF values with 8 bytes each, + * so the size in the IE must match the nr_sets value */ + i = get_unaligned_le16(tsfdesc); + tsfdesc += 2; + if (i / 8 != scanresp->nr_sets) + goto done; + + for (i = 0; i < scanresp->nr_sets; i++) { + u8 *bssid; + u8 *ie; + int left; + int ielen; + u8 rssi; + uint16_t intvl; + uint16_t capa; + int chan_no = -1; + + int len = get_unaligned_le16(pos); + pos += 2; + + /* BSSID */ + bssid = pos; + pos += ETH_ALEN; + /* RSSI */ + rssi = *pos++; + /* Packet time stamp */ + pos += 8; + /* Beacon interval */ + intvl = get_unaligned_le16(pos); + pos += 2; + /* Capabilities */ + capa = get_unaligned_le16(pos); + pos += 2; + + /* To find out the channel, we must parse the IEs */ + ie = pos; + ielen = left = len - 6-1-8-2-2; + while (left >= 2) { + u8 id, elen; + id = *pos++; + elen = *pos++; + left -= 2; + if (elen > left || elen == 0) + goto done; + if (id == WLAN_EID_DS_PARAMS) + chan_no = *pos; + left -= elen; + pos += elen; + } + + if (chan_no != -1) { + struct wiphy *wiphy = priv->wdev->wiphy; + int freq = ieee80211_channel_to_frequency(chan_no); + struct ieee80211_channel *channel = + ieee80211_get_channel(wiphy, freq); + if (channel || + !channel->flags & IEEE80211_CHAN_DISABLED) + cfg80211_inform_bss(wiphy, channel, + bssid, le64_to_cpu(*(__le64 *)tsfdesc), + capa, intvl, ie, ielen, rssi, + GFP_KERNEL); + } + + tsfdesc += 8; + } + ret = 0; + + done: + lbs_deb_leave_args(LBS_DEB_SCAN, "ret %d", ret); + return ret; +} + + +/* + * Add SSID TLV of the form: + * + * TLV-ID SSID 00 00 + * length 06 00 + * ssid 4d 4e 54 45 53 54 + */ +static int lbs_scan_add_ssid_tlv(struct lbs_private *priv, u8 *tlv) +{ + struct mrvl_ie_ssid_param_set *ssid_tlv = (void *)tlv; + + ssid_tlv->header.type = cpu_to_le16(TLV_TYPE_SSID); + ssid_tlv->header.len = cpu_to_le16(priv->scan_req->ssids[0].ssid_len); + memcpy(ssid_tlv->ssid, priv->scan_req->ssids[0].ssid, + priv->scan_req->ssids[0].ssid_len); + return sizeof(ssid_tlv->header) + priv->scan_req->ssids[0].ssid_len; +} + + +/* + * Add CHANLIST TLV of the form: + * + * TLV-ID CHANLIST 01 01 + * length 0e 00 + * channel 00 01 00 00 00 64 00 + * radio type 00 + * channel 01 + * scan type 00 + * min scan time 00 00 + * max scan time 64 00 + * channel 2 00 02 00 00 00 64 00 + * + * It adds the channel from priv->scan_channel to the TLV. Actual channel + * data comes from priv->wiphy->channels. + */ +static int lbs_scan_add_channel_tlv(struct lbs_private *priv, u8 *tlv, + int last_channel) +{ + int chanscanparamsize = sizeof(struct chanscanparamset) * + (last_channel - priv->scan_channel); + + struct mrvl_ie_header *header = (void *) tlv; + + header->type = cpu_to_le16(TLV_TYPE_CHANLIST); + header->len = cpu_to_le16(chanscanparamsize); + tlv += sizeof(struct mrvl_ie_header); + + lbs_deb_scan("scan from %d to %d, size %d\n", priv->scan_channel, + last_channel, chanscanparamsize); + memset(tlv, 0, chanscanparamsize); + + while (priv->scan_channel < last_channel) { + struct chanscanparamset *param = (void *) tlv; + + param->radiotype = CMD_SCAN_RADIO_TYPE_BG; + param->channumber = + priv->scan_req->channels[priv->scan_channel]->hw_value; + /* TODO param->.chanscanmode.passivescan = 1; */ + param->maxscantime = cpu_to_le16(MRVDRV_ACTIVE_SCAN_CHAN_TIME); + tlv += sizeof(struct chanscanparamset); + priv->scan_channel++; + } + return sizeof(struct mrvl_ie_header) + chanscanparamsize; +} + + +/* + * Add RATES TLV of the form + * + * TLV-ID RATES 01 00 + * length 0e 00 + * rates 82 84 8b 96 0c 12 18 24 30 48 60 6c + * + * The rates are in lbs_bg_rates[], but for the 802.11b + * rates the high bit is set. We add this TLV only because + * there's a firmware which otherwise doesn't report all + * APs in range. + */ +static int lbs_scan_add_rates_tlv(u8 *tlv) +{ + int i; + struct mrvl_ie_rates_param_set *rate_tlv = (void *)tlv; + + rate_tlv->header.type = cpu_to_le16(TLV_TYPE_RATES); + tlv += sizeof(rate_tlv->header); + for (i = 0; i < ARRAY_SIZE(lbs_rates); i++) { + *tlv = lbs_rates[i].hw_value; + /* This code makes sure that the 802.11b rates (1 MBit/s, 2 + MBit/s, 5.5 MBit/s and 11 MBit/s get's the high bit set. + Note that the values are MBit/s * 2, to mark them as + basic rates so that the firmware likes it better */ + if (*tlv == 0x02 || *tlv == 0x04 || + *tlv == 0x0b || *tlv == 0x16) + *tlv |= 0x80; + tlv++; + } + rate_tlv->header.len = cpu_to_le16(i); + return sizeof(rate_tlv->header) + i; +} + +/* + * Assumes priv->scan_req is initialized and valid + * Assumes priv->scan_channel is initialized + */ +void lbs_cfg_scan_worker(struct work_struct *work) +{ + struct lbs_private *priv = + container_of(work, struct lbs_private, scan_work.work); + struct cmd_ds_802_11_scan *scan_cmd; + u8 *tlv; /* pointer into our current, growing TLV storage area */ + int last_channel; + + lbs_deb_enter(LBS_DEB_SCAN); + + /* create the fixed part for scan command */ + scan_cmd = kzalloc(MAX_SCAN_CFG_ALLOC, GFP_KERNEL); + if (scan_cmd == NULL) + goto out_no_scan_cmd; + tlv = scan_cmd->tlvbuffer; + + netif_stop_queue(priv->dev); + netif_carrier_off(priv->dev); + if (priv->mesh_dev) { + netif_stop_queue(priv->mesh_dev); + netif_carrier_off(priv->mesh_dev); + } + + scan_cmd->bsstype = CMD_BSS_TYPE_ANY; + + /* add SSID TLV */ + if (priv->scan_req->n_ssids) + tlv += lbs_scan_add_ssid_tlv(priv, tlv); + + /* add channel TLVs */ + last_channel = priv->scan_channel + LBS_SCAN_MAX_CHANNELS_BEFORE_NAP; + if (last_channel > priv->scan_req->n_channels) + last_channel = priv->scan_req->n_channels; + tlv += lbs_scan_add_channel_tlv(priv, tlv, last_channel); + + /* add rates TLV */ + tlv += lbs_scan_add_rates_tlv(tlv); + + if (priv->scan_channel < priv->scan_req->n_channels) { + lbs_deb_scan("reschedule scan\n"); + cancel_delayed_work(&priv->scan_work); + queue_delayed_work(priv->work_thread, &priv->scan_work, + msecs_to_jiffies(300)); + } + + /* This is the final data we are about to send */ + scan_cmd->hdr.size = cpu_to_le16(tlv - (u8 *)scan_cmd); + lbs_deb_hex(LBS_DEB_SCAN, "SCAN_CMD", (void *)scan_cmd, + sizeof(*scan_cmd)); + lbs_deb_hex(LBS_DEB_SCAN, "SCAN_TLV", scan_cmd->tlvbuffer, + tlv - scan_cmd->tlvbuffer); + + __lbs_cmd(priv, CMD_802_11_SCAN, &scan_cmd->hdr, + le16_to_cpu(scan_cmd->hdr.size), + lbs_ret_scan, 0); + + if (priv->scan_channel >= priv->scan_req->n_channels) { + /* Mark scan done */ + cfg80211_scan_done(priv->scan_req, false); + priv->scan_req = NULL; + } + + if (priv->connect_status == LBS_CONNECTED) { + netif_carrier_on(priv->dev); + if (!priv->tx_pending_len) + netif_wake_queue(priv->dev); + } + if (priv->mesh_dev && (priv->mesh_connect_status == LBS_CONNECTED)) { + netif_carrier_on(priv->mesh_dev); + if (!priv->tx_pending_len) + netif_wake_queue(priv->mesh_dev); + } + kfree(scan_cmd); + + out_no_scan_cmd: + lbs_deb_leave(LBS_DEB_CFG80211); +} + + +static int lbs_cfg_scan(struct wiphy *wiphy, + struct net_device *dev, + struct cfg80211_scan_request *request) +{ + struct lbs_private *priv = wiphy_priv(wiphy); + int ret = 0; + + lbs_deb_enter(LBS_DEB_CFG80211); + + if (priv->scan_req || delayed_work_pending(&priv->scan_work)) { + /* old scan request not yet processed */ + ret = -EAGAIN; + goto out; + } + + lbs_deb_cfg80211("n_ssids %d, n_channels %d, ie_len %d\n", + request->n_ssids, request->n_channels, request->ie_len); + + priv->scan_channel = 0; + queue_delayed_work(priv->work_thread, &priv->scan_work, + msecs_to_jiffies(50)); + + if (priv->surpriseremoved) + ret = -EIO; + + priv->scan_req = request; + + out: + lbs_deb_leave_args(LBS_DEB_CFG80211, "ret %d", ret); + return ret; +} + + +int lbs_send_specific_ssid_scan(struct lbs_private *priv, u8 *ssid, + u8 ssid_len) +{ + lbs_deb_enter(LBS_DEB_SCAN); + + /* TODO */ + return -ENOTSUPP; +} + + +int lbs_scan_networks(struct lbs_private *priv, int full_scan) +{ + lbs_deb_enter(LBS_DEB_SCAN); + + /* TODO */ + return -ENOTSUPP; + +} + +/*************************************************************************** + * Initialization + */ static struct cfg80211_ops lbs_cfg80211_ops = { .set_channel = lbs_cfg_set_channel, + .scan = lbs_cfg_scan, }; @@ -153,7 +546,8 @@ int lbs_cfg_register(struct lbs_private lbs_deb_enter(LBS_DEB_CFG80211); wdev->wiphy->max_scan_ssids = 1; - wdev->wiphy->signal_type = CFG80211_SIGNAL_TYPE_MBM; + wdev->wiphy->signal_type = CFG80211_SIGNAL_TYPE_UNSPEC; + /* TODO: convert to CFG80211_SIGNAL_TYPE_MBM; */ /* TODO: BIT(NL80211_IFTYPE_ADHOC); */ wdev->wiphy->interface_modes = BIT(NL80211_IFTYPE_STATION); Index: linux-wl/drivers/net/wireless/libertas/dev.h =================================================================== --- linux-wl.orig/drivers/net/wireless/libertas/dev.h 2009-10-06 15:22:40.000000000 +0200 +++ linux-wl/drivers/net/wireless/libertas/dev.h 2009-10-06 15:23:48.000000000 +0200 @@ -10,6 +10,7 @@ #include #include #include +#include #include "defs.h" #include "hostcmd.h" @@ -101,6 +102,7 @@ struct lbs_mesh_stats { /** Private structure for the MV device */ struct lbs_private { struct wireless_dev *wdev; + struct cfg80211_scan_request *scan_req; int mesh_open; int mesh_fw_ver; int infra_open; Index: linux-wl/drivers/net/wireless/libertas/wext.c =================================================================== --- linux-wl.orig/drivers/net/wireless/libertas/wext.c 2009-10-06 15:22:40.000000000 +0200 +++ linux-wl/drivers/net/wireless/libertas/wext.c 2009-10-06 15:23:48.000000000 +0200 @@ -17,7 +17,6 @@ #include "defs.h" #include "dev.h" #include "wext.h" -#include "scan.h" #include "assoc.h" #include "cmd.h" @@ -2346,8 +2345,8 @@ static const iw_handler lbs_handler[] = (iw_handler) lbs_get_wap, /* SIOCGIWAP */ (iw_handler) NULL, /* SIOCSIWMLME */ (iw_handler) NULL, /* SIOCGIWAPLIST - deprecated */ - (iw_handler) lbs_set_scan, /* SIOCSIWSCAN */ - (iw_handler) lbs_get_scan, /* SIOCGIWSCAN */ + (iw_handler) NULL, /* SIOCSIWSCAN */ + (iw_handler) NULL, /* SIOCGIWSCAN */ (iw_handler) lbs_set_essid, /* SIOCSIWESSID */ (iw_handler) lbs_get_essid, /* SIOCGIWESSID */ (iw_handler) lbs_set_nick, /* SIOCSIWNICKN */ @@ -2404,8 +2403,8 @@ static const iw_handler mesh_wlan_handle (iw_handler) NULL, /* SIOCGIWAP */ (iw_handler) NULL, /* SIOCSIWMLME */ (iw_handler) NULL, /* SIOCGIWAPLIST - deprecated */ - (iw_handler) lbs_set_scan, /* SIOCSIWSCAN */ - (iw_handler) lbs_get_scan, /* SIOCGIWSCAN */ + (iw_handler) NULL, /* SIOCSIWSCAN */ + (iw_handler) NULL, /* SIOCGIWSCAN */ (iw_handler) lbs_mesh_set_essid,/* SIOCSIWESSID */ (iw_handler) lbs_mesh_get_essid,/* SIOCGIWESSID */ (iw_handler) NULL, /* SIOCSIWNICKN */ Index: linux-wl/drivers/net/wireless/libertas/Makefile =================================================================== --- linux-wl.orig/drivers/net/wireless/libertas/Makefile 2009-10-06 15:22:40.000000000 +0200 +++ linux-wl/drivers/net/wireless/libertas/Makefile 2009-10-06 15:23:48.000000000 +0200 @@ -8,7 +8,8 @@ libertas-y += ethtool.o libertas-y += main.o libertas-y += persistcfg.o libertas-y += rx.o -libertas-y += scan.o +# TODO +#libertas-y += scan.o libertas-y += tx.o libertas-y += wext.o Index: linux-wl/drivers/net/wireless/libertas/assoc.c =================================================================== --- linux-wl.orig/drivers/net/wireless/libertas/assoc.c 2009-10-06 15:22:40.000000000 +0200 +++ linux-wl/drivers/net/wireless/libertas/assoc.c 2009-10-06 15:23:48.000000000 +0200 @@ -9,7 +9,7 @@ #include "assoc.h" #include "decl.h" #include "host.h" -#include "scan.h" +#include "cfg.h" #include "cmd.h" static const u8 bssid_any[ETH_ALEN] __attribute__ ((aligned (2))) = @@ -495,6 +495,23 @@ done: } /** + * @brief Compare two SSIDs + * + * @param ssid1 A pointer to ssid to compare + * @param ssid2 A pointer to ssid to compare + * + * @return 0: ssid is same, otherwise is different + */ +static int lbs_ssid_cmp(uint8_t *ssid1, uint8_t ssid1_len, uint8_t *ssid2, + uint8_t ssid2_len) +{ + if (ssid1_len != ssid2_len) + return -1; + + return memcmp(ssid1, ssid2, ssid1_len); +} + +/** * @brief Join an adhoc network found in a previous scan * * @param priv A pointer to struct lbs_private structure Index: linux-wl/drivers/net/wireless/libertas/main.c =================================================================== --- linux-wl.orig/drivers/net/wireless/libertas/main.c 2009-10-06 15:22:40.000000000 +0200 +++ linux-wl/drivers/net/wireless/libertas/main.c 2009-10-06 15:23:48.000000000 +0200 @@ -22,7 +22,7 @@ #include "wext.h" #include "cfg.h" #include "debugfs.h" -#include "scan.h" +#include "cfg.h" #include "assoc.h" #include "cmd.h" @@ -1133,7 +1133,8 @@ static void lbs_sync_channel_worker(stru lbs_deb_leave(LBS_DEB_MAIN); } - +/* TODO */ +#define MAX_NETWORK_COUNT 128 static int lbs_init_adapter(struct lbs_private *priv) { size_t bufsize; @@ -1313,7 +1314,7 @@ struct lbs_private *lbs_add_card(void *c priv->work_thread = create_singlethread_workqueue("lbs_worker"); INIT_DELAYED_WORK(&priv->assoc_work, lbs_association_worker); - INIT_DELAYED_WORK(&priv->scan_work, lbs_scan_worker); + INIT_DELAYED_WORK(&priv->scan_work, lbs_cfg_scan_worker); INIT_WORK(&priv->mcast_work, lbs_set_mcast_worker); INIT_WORK(&priv->sync_channel, lbs_sync_channel_worker); Index: linux-wl/drivers/net/wireless/libertas/persistcfg.c =================================================================== --- linux-wl.orig/drivers/net/wireless/libertas/persistcfg.c 2009-10-06 15:22:40.000000000 +0200 +++ linux-wl/drivers/net/wireless/libertas/persistcfg.c 2009-10-06 15:23:48.000000000 +0200 @@ -11,7 +11,6 @@ #include "dev.h" #include "wext.h" #include "debugfs.h" -#include "scan.h" #include "assoc.h" #include "cmd.h" Index: linux-wl/drivers/net/wireless/libertas/scan.c =================================================================== --- linux-wl.orig/drivers/net/wireless/libertas/scan.c 2009-10-06 15:22:40.000000000 +0200 +++ linux-wl/drivers/net/wireless/libertas/scan.c 2009-10-06 15:23:48.000000000 +0200 @@ -3,6 +3,8 @@ * * IOCTL handlers as well as command preperation and response routines * for sending scan commands to the firmware. + * + * TODO: remove this file */ #include #include @@ -90,23 +92,6 @@ static inline void clear_bss_descriptor( memset(bss, 0, offsetof(struct bss_descriptor, list)); } -/** - * @brief Compare two SSIDs - * - * @param ssid1 A pointer to ssid to compare - * @param ssid2 A pointer to ssid to compare - * - * @return 0: ssid is same, otherwise is different - */ -int lbs_ssid_cmp(uint8_t *ssid1, uint8_t ssid1_len, uint8_t *ssid2, - uint8_t ssid2_len) -{ - if (ssid1_len != ssid2_len) - return -1; - - return memcmp(ssid1, ssid2, ssid1_len); -} - static inline int is_same_network(struct bss_descriptor *src, struct bss_descriptor *dst) { Index: linux-wl/drivers/net/wireless/libertas/scan.h =================================================================== --- linux-wl.orig/drivers/net/wireless/libertas/scan.h 2009-10-06 15:22:40.000000000 +0200 +++ linux-wl/drivers/net/wireless/libertas/scan.h 2009-10-06 15:23:48.000000000 +0200 @@ -1,3 +1,6 @@ +#error don't include scan.h +/* TODO: remove this file */ + /** * Interface for the wlan network scan routines *