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R. Silva" To: Stanislav Yakovlev , Johannes Berg , Kalle Valo , "David S. Miller" , Eric Dumazet , Jakub Kicinski , Paolo Abeni Cc: netdev@vger.kernel.org, linux-wireless@vger.kernel.org, linux-kernel@vger.kernel.org, Kees Cook , "Gustavo A. R. Silva" , linux-hardening@vger.kernel.org Subject: [PATCH v2 1/6] cfg80211: Avoid clashing function prototypes Message-ID: References: MIME-Version: 1.0 Content-Disposition: inline In-Reply-To: X-Spam-Status: No, score=-7.6 required=5.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,DKIM_VALID_EF,RCVD_IN_DNSWL_HI, SPF_HELO_NONE,SPF_PASS autolearn=ham autolearn_force=no version=3.4.6 X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on lindbergh.monkeyblade.net Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org X-getmail-retrieved-from-mailbox: =?utf-8?q?INBOX?= X-GMAIL-THRID: =?utf-8?q?1747873533412207692?= X-GMAIL-MSGID: =?utf-8?q?1747873533412207692?= When built with Control Flow Integrity, function prototypes between caller and function declaration must match. These mismatches are visible at compile time with the new -Wcast-function-type-strict in Clang[1]. Fix a total of 63 warnings like these: drivers/net/wireless/intersil/orinoco/wext.c:1379:27: warning: cast from 'int (*)(struct net_device *, struct iw_request_info *, struct iw_param *, char *)' to 'iw_handler' (aka 'int (*)(struct net_device *, struct iw_request_info *, union iwreq_data *, char *)') converts to incompatible function type [-Wcast-function-type-strict] IW_HANDLER(SIOCGIWPOWER, (iw_handler)orinoco_ioctl_getpower), ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ ../net/wireless/wext-compat.c:1607:33: warning: cast from 'int (*)(struct net_device *, struct iw_request_info *, struct iw_point *, char *)' to 'iw_handler' (aka 'int (*)(struct net_device *, struct iw_request_info *, union iwreq_data *, char *)') converts to incompatible function type [-Wcast-function-type-strict] [IW_IOCTL_IDX(SIOCSIWGENIE)] = (iw_handler) cfg80211_wext_siwgenie, ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ ../drivers/net/wireless/intersil/orinoco/wext.c:1390:27: error: incompatible function pointer types initializing 'const iw_handler' (aka 'int (*const)(struct net_device *, struct iw_request_info *, union iwreq_data *, char *)') with an expression of type 'int (struct net_device *, struct iw_request_info *, struct iw_param *, char *)' [-Wincompatible-function-pointer-types] IW_HANDLER(SIOCGIWRETRY, cfg80211_wext_giwretry), ^~~~~~~~~~~~~~~~~~~~~~ The cfg80211 Wireless Extension handler callbacks (iw_handler) use a union for the data argument. Actually use the union and perform explicit member selection in the function body instead of having a function prototype mismatch. There are no resulting binary differences before/after changes. Link: https://github.com/KSPP/linux/issues/234 Link: https://reviews.llvm.org/D134831 [1] Signed-off-by: Gustavo A. R. Silva --- Changes in v2: - Squash previous patches 1, 2 and 3 into a single patch cfg80211. - Revert changes in orinoco_private_handler[]. - Use IW_HANDLER in cfg80211_handlers instead of open-coded [IW_IOCTL_IDX(SIOCGIWRETRY)] = cfg80211_wext_giwretry, ... v1: - Link: https://lore.kernel.org/linux-hardening/291de76bc7cd5c21dc2f2471382ab0caaf625b22.1666038048.git.gustavoars@kernel.org/ drivers/net/wireless/intel/ipw2x00/ipw2200.c | 2 +- drivers/net/wireless/intersil/orinoco/wext.c | 113 +++++++----- include/net/cfg80211-wext.h | 20 +-- net/wireless/scan.c | 3 +- net/wireless/wext-compat.c | 180 +++++++++---------- net/wireless/wext-compat.h | 8 +- net/wireless/wext-sme.c | 5 +- 7 files changed, 166 insertions(+), 165 deletions(-) diff --git a/drivers/net/wireless/intel/ipw2x00/ipw2200.c b/drivers/net/wireless/intel/ipw2x00/ipw2200.c index 5b483de18c81..3158f91b18d5 100644 --- a/drivers/net/wireless/intel/ipw2x00/ipw2200.c +++ b/drivers/net/wireless/intel/ipw2x00/ipw2200.c @@ -9870,7 +9870,7 @@ static int ipw_wx_sw_reset(struct net_device *dev, /* Rebase the WE IOCTLs to zero for the handler array */ static iw_handler ipw_wx_handlers[] = { - IW_HANDLER(SIOCGIWNAME, (iw_handler)cfg80211_wext_giwname), + IW_HANDLER(SIOCGIWNAME, cfg80211_wext_giwname), IW_HANDLER(SIOCSIWFREQ, ipw_wx_set_freq), IW_HANDLER(SIOCGIWFREQ, ipw_wx_get_freq), IW_HANDLER(SIOCSIWMODE, ipw_wx_set_mode), diff --git a/drivers/net/wireless/intersil/orinoco/wext.c b/drivers/net/wireless/intersil/orinoco/wext.c index 4a01260027bc..d79d72af32a5 100644 --- a/drivers/net/wireless/intersil/orinoco/wext.c +++ b/drivers/net/wireless/intersil/orinoco/wext.c @@ -154,9 +154,10 @@ static struct iw_statistics *orinoco_get_wireless_stats(struct net_device *dev) static int orinoco_ioctl_setwap(struct net_device *dev, struct iw_request_info *info, - struct sockaddr *ap_addr, + union iwreq_data *wrqu, char *extra) { + struct sockaddr *ap_addr = &wrqu->ap_addr; struct orinoco_private *priv = ndev_priv(dev); int err = -EINPROGRESS; /* Call commit handler */ unsigned long flags; @@ -213,9 +214,10 @@ static int orinoco_ioctl_setwap(struct net_device *dev, static int orinoco_ioctl_getwap(struct net_device *dev, struct iw_request_info *info, - struct sockaddr *ap_addr, + union iwreq_data *wrqu, char *extra) { + struct sockaddr *ap_addr = &wrqu->ap_addr; struct orinoco_private *priv = ndev_priv(dev); int err = 0; @@ -234,9 +236,10 @@ static int orinoco_ioctl_getwap(struct net_device *dev, static int orinoco_ioctl_setiwencode(struct net_device *dev, struct iw_request_info *info, - struct iw_point *erq, + union iwreq_data *wrqu, char *keybuf) { + struct iw_point *erq = &wrqu->encoding; struct orinoco_private *priv = ndev_priv(dev); int index = (erq->flags & IW_ENCODE_INDEX) - 1; int setindex = priv->tx_key; @@ -325,9 +328,10 @@ static int orinoco_ioctl_setiwencode(struct net_device *dev, static int orinoco_ioctl_getiwencode(struct net_device *dev, struct iw_request_info *info, - struct iw_point *erq, + union iwreq_data *wrqu, char *keybuf) { + struct iw_point *erq = &wrqu->encoding; struct orinoco_private *priv = ndev_priv(dev); int index = (erq->flags & IW_ENCODE_INDEX) - 1; unsigned long flags; @@ -361,9 +365,10 @@ static int orinoco_ioctl_getiwencode(struct net_device *dev, static int orinoco_ioctl_setessid(struct net_device *dev, struct iw_request_info *info, - struct iw_point *erq, + union iwreq_data *wrqu, char *essidbuf) { + struct iw_point *erq = &wrqu->essid; struct orinoco_private *priv = ndev_priv(dev); unsigned long flags; @@ -392,9 +397,10 @@ static int orinoco_ioctl_setessid(struct net_device *dev, static int orinoco_ioctl_getessid(struct net_device *dev, struct iw_request_info *info, - struct iw_point *erq, + union iwreq_data *wrqu, char *essidbuf) { + struct iw_point *erq = &wrqu->essid; struct orinoco_private *priv = ndev_priv(dev); int active; int err = 0; @@ -420,9 +426,10 @@ static int orinoco_ioctl_getessid(struct net_device *dev, static int orinoco_ioctl_setfreq(struct net_device *dev, struct iw_request_info *info, - struct iw_freq *frq, + union iwreq_data *wrqu, char *extra) { + struct iw_freq *frq = &wrqu->freq; struct orinoco_private *priv = ndev_priv(dev); int chan = -1; unsigned long flags; @@ -469,9 +476,10 @@ static int orinoco_ioctl_setfreq(struct net_device *dev, static int orinoco_ioctl_getfreq(struct net_device *dev, struct iw_request_info *info, - struct iw_freq *frq, + union iwreq_data *wrqu, char *extra) { + struct iw_freq *frq = &wrqu->freq; struct orinoco_private *priv = ndev_priv(dev); int tmp; @@ -488,9 +496,10 @@ static int orinoco_ioctl_getfreq(struct net_device *dev, static int orinoco_ioctl_getsens(struct net_device *dev, struct iw_request_info *info, - struct iw_param *srq, + union iwreq_data *wrqu, char *extra) { + struct iw_param *srq = &wrqu->sens; struct orinoco_private *priv = ndev_priv(dev); struct hermes *hw = &priv->hw; u16 val; @@ -517,9 +526,10 @@ static int orinoco_ioctl_getsens(struct net_device *dev, static int orinoco_ioctl_setsens(struct net_device *dev, struct iw_request_info *info, - struct iw_param *srq, + union iwreq_data *wrqu, char *extra) { + struct iw_param *srq = &wrqu->sens; struct orinoco_private *priv = ndev_priv(dev); int val = srq->value; unsigned long flags; @@ -540,9 +550,10 @@ static int orinoco_ioctl_setsens(struct net_device *dev, static int orinoco_ioctl_setrate(struct net_device *dev, struct iw_request_info *info, - struct iw_param *rrq, + union iwreq_data *wrqu, char *extra) { + struct iw_param *rrq = &wrqu->bitrate; struct orinoco_private *priv = ndev_priv(dev); int ratemode; int bitrate; /* 100s of kilobits */ @@ -574,9 +585,10 @@ static int orinoco_ioctl_setrate(struct net_device *dev, static int orinoco_ioctl_getrate(struct net_device *dev, struct iw_request_info *info, - struct iw_param *rrq, + union iwreq_data *wrqu, char *extra) { + struct iw_param *rrq = &wrqu->bitrate; struct orinoco_private *priv = ndev_priv(dev); int err = 0; int bitrate, automatic; @@ -610,9 +622,10 @@ static int orinoco_ioctl_getrate(struct net_device *dev, static int orinoco_ioctl_setpower(struct net_device *dev, struct iw_request_info *info, - struct iw_param *prq, + union iwreq_data *wrqu, char *extra) { + struct iw_param *prq = &wrqu->power; struct orinoco_private *priv = ndev_priv(dev); int err = -EINPROGRESS; /* Call commit handler */ unsigned long flags; @@ -664,9 +677,10 @@ static int orinoco_ioctl_setpower(struct net_device *dev, static int orinoco_ioctl_getpower(struct net_device *dev, struct iw_request_info *info, - struct iw_param *prq, + union iwreq_data *wrqu, char *extra) { + struct iw_param *prq = &wrqu->power; struct orinoco_private *priv = ndev_priv(dev); struct hermes *hw = &priv->hw; int err = 0; @@ -1097,7 +1111,7 @@ static int orinoco_ioctl_set_mlme(struct net_device *dev, static int orinoco_ioctl_reset(struct net_device *dev, struct iw_request_info *info, - void *wrqu, + union iwreq_data *wrqu, char *extra) { struct orinoco_private *priv = ndev_priv(dev); @@ -1121,7 +1135,7 @@ static int orinoco_ioctl_reset(struct net_device *dev, static int orinoco_ioctl_setibssport(struct net_device *dev, struct iw_request_info *info, - void *wrqu, + union iwreq_data *wrqu, char *extra) { @@ -1143,7 +1157,7 @@ static int orinoco_ioctl_setibssport(struct net_device *dev, static int orinoco_ioctl_getibssport(struct net_device *dev, struct iw_request_info *info, - void *wrqu, + union iwreq_data *wrqu, char *extra) { struct orinoco_private *priv = ndev_priv(dev); @@ -1155,7 +1169,7 @@ static int orinoco_ioctl_getibssport(struct net_device *dev, static int orinoco_ioctl_setport3(struct net_device *dev, struct iw_request_info *info, - void *wrqu, + union iwreq_data *wrqu, char *extra) { struct orinoco_private *priv = ndev_priv(dev); @@ -1201,7 +1215,7 @@ static int orinoco_ioctl_setport3(struct net_device *dev, static int orinoco_ioctl_getport3(struct net_device *dev, struct iw_request_info *info, - void *wrqu, + union iwreq_data *wrqu, char *extra) { struct orinoco_private *priv = ndev_priv(dev); @@ -1213,7 +1227,7 @@ static int orinoco_ioctl_getport3(struct net_device *dev, static int orinoco_ioctl_setpreamble(struct net_device *dev, struct iw_request_info *info, - void *wrqu, + union iwreq_data *wrqu, char *extra) { struct orinoco_private *priv = ndev_priv(dev); @@ -1245,7 +1259,7 @@ static int orinoco_ioctl_setpreamble(struct net_device *dev, static int orinoco_ioctl_getpreamble(struct net_device *dev, struct iw_request_info *info, - void *wrqu, + union iwreq_data *wrqu, char *extra) { struct orinoco_private *priv = ndev_priv(dev); @@ -1265,9 +1279,10 @@ static int orinoco_ioctl_getpreamble(struct net_device *dev, * For Wireless Tools 25 and 26 append "dummy" are the end. */ static int orinoco_ioctl_getrid(struct net_device *dev, struct iw_request_info *info, - struct iw_point *data, + union iwreq_data *wrqu, char *extra) { + struct iw_point *data = &wrqu->data; struct orinoco_private *priv = ndev_priv(dev); struct hermes *hw = &priv->hw; int rid = data->flags; @@ -1303,7 +1318,7 @@ static int orinoco_ioctl_getrid(struct net_device *dev, /* Commit handler, called after set operations */ static int orinoco_ioctl_commit(struct net_device *dev, struct iw_request_info *info, - void *wrqu, + union iwreq_data *wrqu, char *extra) { struct orinoco_private *priv = ndev_priv(dev); @@ -1347,36 +1362,36 @@ static const struct iw_priv_args orinoco_privtab[] = { */ static const iw_handler orinoco_handler[] = { - IW_HANDLER(SIOCSIWCOMMIT, (iw_handler)orinoco_ioctl_commit), - IW_HANDLER(SIOCGIWNAME, (iw_handler)cfg80211_wext_giwname), - IW_HANDLER(SIOCSIWFREQ, (iw_handler)orinoco_ioctl_setfreq), - IW_HANDLER(SIOCGIWFREQ, (iw_handler)orinoco_ioctl_getfreq), - IW_HANDLER(SIOCSIWMODE, (iw_handler)cfg80211_wext_siwmode), - IW_HANDLER(SIOCGIWMODE, (iw_handler)cfg80211_wext_giwmode), - IW_HANDLER(SIOCSIWSENS, (iw_handler)orinoco_ioctl_setsens), - IW_HANDLER(SIOCGIWSENS, (iw_handler)orinoco_ioctl_getsens), - IW_HANDLER(SIOCGIWRANGE, (iw_handler)cfg80211_wext_giwrange), + IW_HANDLER(SIOCSIWCOMMIT, orinoco_ioctl_commit), + IW_HANDLER(SIOCGIWNAME, cfg80211_wext_giwname), + IW_HANDLER(SIOCSIWFREQ, orinoco_ioctl_setfreq), + IW_HANDLER(SIOCGIWFREQ, orinoco_ioctl_getfreq), + IW_HANDLER(SIOCSIWMODE, cfg80211_wext_siwmode), + IW_HANDLER(SIOCGIWMODE, cfg80211_wext_giwmode), + IW_HANDLER(SIOCSIWSENS, orinoco_ioctl_setsens), + IW_HANDLER(SIOCGIWSENS, orinoco_ioctl_getsens), + IW_HANDLER(SIOCGIWRANGE, cfg80211_wext_giwrange), IW_HANDLER(SIOCSIWSPY, iw_handler_set_spy), IW_HANDLER(SIOCGIWSPY, iw_handler_get_spy), IW_HANDLER(SIOCSIWTHRSPY, iw_handler_set_thrspy), IW_HANDLER(SIOCGIWTHRSPY, iw_handler_get_thrspy), - IW_HANDLER(SIOCSIWAP, (iw_handler)orinoco_ioctl_setwap), - IW_HANDLER(SIOCGIWAP, (iw_handler)orinoco_ioctl_getwap), - IW_HANDLER(SIOCSIWSCAN, (iw_handler)cfg80211_wext_siwscan), - IW_HANDLER(SIOCGIWSCAN, (iw_handler)cfg80211_wext_giwscan), - IW_HANDLER(SIOCSIWESSID, (iw_handler)orinoco_ioctl_setessid), - IW_HANDLER(SIOCGIWESSID, (iw_handler)orinoco_ioctl_getessid), - IW_HANDLER(SIOCSIWRATE, (iw_handler)orinoco_ioctl_setrate), - IW_HANDLER(SIOCGIWRATE, (iw_handler)orinoco_ioctl_getrate), - IW_HANDLER(SIOCSIWRTS, (iw_handler)cfg80211_wext_siwrts), - IW_HANDLER(SIOCGIWRTS, (iw_handler)cfg80211_wext_giwrts), - IW_HANDLER(SIOCSIWFRAG, (iw_handler)cfg80211_wext_siwfrag), - IW_HANDLER(SIOCGIWFRAG, (iw_handler)cfg80211_wext_giwfrag), - IW_HANDLER(SIOCGIWRETRY, (iw_handler)cfg80211_wext_giwretry), - IW_HANDLER(SIOCSIWENCODE, (iw_handler)orinoco_ioctl_setiwencode), - IW_HANDLER(SIOCGIWENCODE, (iw_handler)orinoco_ioctl_getiwencode), - IW_HANDLER(SIOCSIWPOWER, (iw_handler)orinoco_ioctl_setpower), - IW_HANDLER(SIOCGIWPOWER, (iw_handler)orinoco_ioctl_getpower), + IW_HANDLER(SIOCSIWAP, orinoco_ioctl_setwap), + IW_HANDLER(SIOCGIWAP, orinoco_ioctl_getwap), + IW_HANDLER(SIOCSIWSCAN, cfg80211_wext_siwscan), + IW_HANDLER(SIOCGIWSCAN, cfg80211_wext_giwscan), + IW_HANDLER(SIOCSIWESSID, orinoco_ioctl_setessid), + IW_HANDLER(SIOCGIWESSID, orinoco_ioctl_getessid), + IW_HANDLER(SIOCSIWRATE, orinoco_ioctl_setrate), + IW_HANDLER(SIOCGIWRATE, orinoco_ioctl_getrate), + IW_HANDLER(SIOCSIWRTS, cfg80211_wext_siwrts), + IW_HANDLER(SIOCGIWRTS, cfg80211_wext_giwrts), + IW_HANDLER(SIOCSIWFRAG, cfg80211_wext_siwfrag), + IW_HANDLER(SIOCGIWFRAG, cfg80211_wext_giwfrag), + IW_HANDLER(SIOCGIWRETRY, cfg80211_wext_giwretry), + IW_HANDLER(SIOCSIWENCODE, orinoco_ioctl_setiwencode), + IW_HANDLER(SIOCGIWENCODE, orinoco_ioctl_getiwencode), + IW_HANDLER(SIOCSIWPOWER, orinoco_ioctl_setpower), + IW_HANDLER(SIOCGIWPOWER, orinoco_ioctl_getpower), IW_HANDLER(SIOCSIWGENIE, orinoco_ioctl_set_genie), IW_HANDLER(SIOCGIWGENIE, orinoco_ioctl_get_genie), IW_HANDLER(SIOCSIWMLME, orinoco_ioctl_set_mlme), diff --git a/include/net/cfg80211-wext.h b/include/net/cfg80211-wext.h index ad77caf2ffde..0ee36d97e068 100644 --- a/include/net/cfg80211-wext.h +++ b/include/net/cfg80211-wext.h @@ -19,34 +19,34 @@ */ int cfg80211_wext_giwname(struct net_device *dev, struct iw_request_info *info, - char *name, char *extra); + union iwreq_data *wrqu, char *extra); int cfg80211_wext_siwmode(struct net_device *dev, struct iw_request_info *info, - u32 *mode, char *extra); + union iwreq_data *wrqu, char *extra); int cfg80211_wext_giwmode(struct net_device *dev, struct iw_request_info *info, - u32 *mode, char *extra); + union iwreq_data *wrqu, char *extra); int cfg80211_wext_siwscan(struct net_device *dev, struct iw_request_info *info, union iwreq_data *wrqu, char *extra); int cfg80211_wext_giwscan(struct net_device *dev, struct iw_request_info *info, - struct iw_point *data, char *extra); + union iwreq_data *wrqu, char *extra); int cfg80211_wext_giwrange(struct net_device *dev, struct iw_request_info *info, - struct iw_point *data, char *extra); + union iwreq_data *wrqu, char *extra); int cfg80211_wext_siwrts(struct net_device *dev, struct iw_request_info *info, - struct iw_param *rts, char *extra); + union iwreq_data *wrqu, char *extra); int cfg80211_wext_giwrts(struct net_device *dev, struct iw_request_info *info, - struct iw_param *rts, char *extra); + union iwreq_data *wrqu, char *extra); int cfg80211_wext_siwfrag(struct net_device *dev, struct iw_request_info *info, - struct iw_param *frag, char *extra); + union iwreq_data *wrqu, char *extra); int cfg80211_wext_giwfrag(struct net_device *dev, struct iw_request_info *info, - struct iw_param *frag, char *extra); + union iwreq_data *wrqu, char *extra); int cfg80211_wext_giwretry(struct net_device *dev, struct iw_request_info *info, - struct iw_param *retry, char *extra); + union iwreq_data *wrqu, char *extra); #endif /* __NET_CFG80211_WEXT_H */ diff --git a/net/wireless/scan.c b/net/wireless/scan.c index 806a5f1330ff..853619bc0f1a 100644 --- a/net/wireless/scan.c +++ b/net/wireless/scan.c @@ -3229,8 +3229,9 @@ static int ieee80211_scan_results(struct cfg80211_registered_device *rdev, int cfg80211_wext_giwscan(struct net_device *dev, struct iw_request_info *info, - struct iw_point *data, char *extra) + union iwreq_data *wrqu, char *extra) { + struct iw_point *data = &wrqu->data; struct cfg80211_registered_device *rdev; int res; diff --git a/net/wireless/wext-compat.c b/net/wireless/wext-compat.c index ddf340bfa07a..8a24dfca75af 100644 --- a/net/wireless/wext-compat.c +++ b/net/wireless/wext-compat.c @@ -25,16 +25,17 @@ int cfg80211_wext_giwname(struct net_device *dev, struct iw_request_info *info, - char *name, char *extra) + union iwreq_data *wrqu, char *extra) { - strcpy(name, "IEEE 802.11"); + strcpy(wrqu->name, "IEEE 802.11"); return 0; } EXPORT_WEXT_HANDLER(cfg80211_wext_giwname); int cfg80211_wext_siwmode(struct net_device *dev, struct iw_request_info *info, - u32 *mode, char *extra) + union iwreq_data *wrqu, char *extra) { + __u32 *mode = &wrqu->mode; struct wireless_dev *wdev = dev->ieee80211_ptr; struct cfg80211_registered_device *rdev; struct vif_params vifparams; @@ -71,8 +72,9 @@ int cfg80211_wext_siwmode(struct net_device *dev, struct iw_request_info *info, EXPORT_WEXT_HANDLER(cfg80211_wext_siwmode); int cfg80211_wext_giwmode(struct net_device *dev, struct iw_request_info *info, - u32 *mode, char *extra) + union iwreq_data *wrqu, char *extra) { + __u32 *mode = &wrqu->mode; struct wireless_dev *wdev = dev->ieee80211_ptr; if (!wdev) @@ -108,8 +110,9 @@ EXPORT_WEXT_HANDLER(cfg80211_wext_giwmode); int cfg80211_wext_giwrange(struct net_device *dev, struct iw_request_info *info, - struct iw_point *data, char *extra) + union iwreq_data *wrqu, char *extra) { + struct iw_point *data = &wrqu->data; struct wireless_dev *wdev = dev->ieee80211_ptr; struct iw_range *range = (struct iw_range *) extra; enum nl80211_band band; @@ -251,8 +254,9 @@ int cfg80211_wext_freq(struct iw_freq *freq) int cfg80211_wext_siwrts(struct net_device *dev, struct iw_request_info *info, - struct iw_param *rts, char *extra) + union iwreq_data *wrqu, char *extra) { + struct iw_param *rts = &wrqu->rts; struct wireless_dev *wdev = dev->ieee80211_ptr; struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy); u32 orts = wdev->wiphy->rts_threshold; @@ -281,8 +285,9 @@ EXPORT_WEXT_HANDLER(cfg80211_wext_siwrts); int cfg80211_wext_giwrts(struct net_device *dev, struct iw_request_info *info, - struct iw_param *rts, char *extra) + union iwreq_data *wrqu, char *extra) { + struct iw_param *rts = &wrqu->rts; struct wireless_dev *wdev = dev->ieee80211_ptr; rts->value = wdev->wiphy->rts_threshold; @@ -295,8 +300,9 @@ EXPORT_WEXT_HANDLER(cfg80211_wext_giwrts); int cfg80211_wext_siwfrag(struct net_device *dev, struct iw_request_info *info, - struct iw_param *frag, char *extra) + union iwreq_data *wrqu, char *extra) { + struct iw_param *frag = &wrqu->frag; struct wireless_dev *wdev = dev->ieee80211_ptr; struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy); u32 ofrag = wdev->wiphy->frag_threshold; @@ -325,8 +331,9 @@ EXPORT_WEXT_HANDLER(cfg80211_wext_siwfrag); int cfg80211_wext_giwfrag(struct net_device *dev, struct iw_request_info *info, - struct iw_param *frag, char *extra) + union iwreq_data *wrqu, char *extra) { + struct iw_param *frag = &wrqu->frag; struct wireless_dev *wdev = dev->ieee80211_ptr; frag->value = wdev->wiphy->frag_threshold; @@ -339,8 +346,9 @@ EXPORT_WEXT_HANDLER(cfg80211_wext_giwfrag); static int cfg80211_wext_siwretry(struct net_device *dev, struct iw_request_info *info, - struct iw_param *retry, char *extra) + union iwreq_data *wrqu, char *extra) { + struct iw_param *retry = &wrqu->retry; struct wireless_dev *wdev = dev->ieee80211_ptr; struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy); u32 changed = 0; @@ -378,8 +386,9 @@ static int cfg80211_wext_siwretry(struct net_device *dev, int cfg80211_wext_giwretry(struct net_device *dev, struct iw_request_info *info, - struct iw_param *retry, char *extra) + union iwreq_data *wrqu, char *extra) { + struct iw_param *retry = &wrqu->retry; struct wireless_dev *wdev = dev->ieee80211_ptr; retry->disabled = 0; @@ -588,8 +597,9 @@ static int cfg80211_set_encryption(struct cfg80211_registered_device *rdev, static int cfg80211_wext_siwencode(struct net_device *dev, struct iw_request_info *info, - struct iw_point *erq, char *keybuf) + union iwreq_data *wrqu, char *keybuf) { + struct iw_point *erq = &wrqu->encoding; struct wireless_dev *wdev = dev->ieee80211_ptr; struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy); int idx, err; @@ -664,8 +674,9 @@ static int cfg80211_wext_siwencode(struct net_device *dev, static int cfg80211_wext_siwencodeext(struct net_device *dev, struct iw_request_info *info, - struct iw_point *erq, char *extra) + union iwreq_data *wrqu, char *extra) { + struct iw_point *erq = &wrqu->encoding; struct wireless_dev *wdev = dev->ieee80211_ptr; struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy); struct iw_encode_ext *ext = (struct iw_encode_ext *) extra; @@ -767,8 +778,9 @@ static int cfg80211_wext_siwencodeext(struct net_device *dev, static int cfg80211_wext_giwencode(struct net_device *dev, struct iw_request_info *info, - struct iw_point *erq, char *keybuf) + union iwreq_data *wrqu, char *keybuf) { + struct iw_point *erq = &wrqu->encoding; struct wireless_dev *wdev = dev->ieee80211_ptr; int idx; @@ -804,8 +816,9 @@ static int cfg80211_wext_giwencode(struct net_device *dev, static int cfg80211_wext_siwfreq(struct net_device *dev, struct iw_request_info *info, - struct iw_freq *wextfreq, char *extra) + union iwreq_data *wrqu, char *extra) { + struct iw_freq *wextfreq = &wrqu->freq; struct wireless_dev *wdev = dev->ieee80211_ptr; struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy); struct cfg80211_chan_def chandef = { @@ -870,8 +883,9 @@ static int cfg80211_wext_siwfreq(struct net_device *dev, static int cfg80211_wext_giwfreq(struct net_device *dev, struct iw_request_info *info, - struct iw_freq *freq, char *extra) + union iwreq_data *wrqu, char *extra) { + struct iw_freq *freq = &wrqu->freq; struct wireless_dev *wdev = dev->ieee80211_ptr; struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy); struct cfg80211_chan_def chandef = {}; @@ -1147,8 +1161,9 @@ static int cfg80211_set_key_mgt(struct wireless_dev *wdev, u32 key_mgt) static int cfg80211_wext_siwauth(struct net_device *dev, struct iw_request_info *info, - struct iw_param *data, char *extra) + union iwreq_data *wrqu, char *extra) { + struct iw_param *data = &wrqu->param; struct wireless_dev *wdev = dev->ieee80211_ptr; if (wdev->iftype != NL80211_IFTYPE_STATION) @@ -1180,7 +1195,7 @@ static int cfg80211_wext_siwauth(struct net_device *dev, static int cfg80211_wext_giwauth(struct net_device *dev, struct iw_request_info *info, - struct iw_param *data, char *extra) + union iwreq_data *wrqu, char *extra) { /* XXX: what do we need? */ @@ -1189,8 +1204,9 @@ static int cfg80211_wext_giwauth(struct net_device *dev, static int cfg80211_wext_siwpower(struct net_device *dev, struct iw_request_info *info, - struct iw_param *wrq, char *extra) + union iwreq_data *wrqu, char *extra) { + struct iw_param *wrq = &wrqu->power; struct wireless_dev *wdev = dev->ieee80211_ptr; struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy); bool ps; @@ -1238,8 +1254,9 @@ static int cfg80211_wext_siwpower(struct net_device *dev, static int cfg80211_wext_giwpower(struct net_device *dev, struct iw_request_info *info, - struct iw_param *wrq, char *extra) + union iwreq_data *wrqu, char *extra) { + struct iw_param *wrq = &wrqu->power; struct wireless_dev *wdev = dev->ieee80211_ptr; wrq->disabled = !wdev->ps; @@ -1249,8 +1266,9 @@ static int cfg80211_wext_giwpower(struct net_device *dev, static int cfg80211_wext_siwrate(struct net_device *dev, struct iw_request_info *info, - struct iw_param *rate, char *extra) + union iwreq_data *wrqu, char *extra) { + struct iw_param *rate = &wrqu->bitrate; struct wireless_dev *wdev = dev->ieee80211_ptr; struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy); struct cfg80211_bitrate_mask mask; @@ -1307,8 +1325,9 @@ static int cfg80211_wext_siwrate(struct net_device *dev, static int cfg80211_wext_giwrate(struct net_device *dev, struct iw_request_info *info, - struct iw_param *rate, char *extra) + union iwreq_data *wrqu, char *extra) { + struct iw_param *rate = &wrqu->bitrate; struct wireless_dev *wdev = dev->ieee80211_ptr; struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy); struct station_info sinfo = {}; @@ -1430,8 +1449,9 @@ static struct iw_statistics *cfg80211_wireless_stats(struct net_device *dev) static int cfg80211_wext_siwap(struct net_device *dev, struct iw_request_info *info, - struct sockaddr *ap_addr, char *extra) + union iwreq_data *wrqu, char *extra) { + struct sockaddr *ap_addr = &wrqu->ap_addr; struct wireless_dev *wdev = dev->ieee80211_ptr; struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy); int ret; @@ -1455,8 +1475,9 @@ static int cfg80211_wext_siwap(struct net_device *dev, static int cfg80211_wext_giwap(struct net_device *dev, struct iw_request_info *info, - struct sockaddr *ap_addr, char *extra) + union iwreq_data *wrqu, char *extra) { + struct sockaddr *ap_addr = &wrqu->ap_addr; struct wireless_dev *wdev = dev->ieee80211_ptr; struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy); int ret; @@ -1480,8 +1501,9 @@ static int cfg80211_wext_giwap(struct net_device *dev, static int cfg80211_wext_siwessid(struct net_device *dev, struct iw_request_info *info, - struct iw_point *data, char *ssid) + union iwreq_data *wrqu, char *ssid) { + struct iw_point *data = &wrqu->data; struct wireless_dev *wdev = dev->ieee80211_ptr; struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy); int ret; @@ -1505,8 +1527,9 @@ static int cfg80211_wext_siwessid(struct net_device *dev, static int cfg80211_wext_giwessid(struct net_device *dev, struct iw_request_info *info, - struct iw_point *data, char *ssid) + union iwreq_data *wrqu, char *ssid) { + struct iw_point *data = &wrqu->data; struct wireless_dev *wdev = dev->ieee80211_ptr; struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy); int ret; @@ -1533,7 +1556,7 @@ static int cfg80211_wext_giwessid(struct net_device *dev, static int cfg80211_wext_siwpmksa(struct net_device *dev, struct iw_request_info *info, - struct iw_point *data, char *extra) + union iwreq_data *wrqu, char *extra) { struct wireless_dev *wdev = dev->ieee80211_ptr; struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy); @@ -1584,78 +1607,39 @@ static int cfg80211_wext_siwpmksa(struct net_device *dev, return ret; } -#define DEFINE_WEXT_COMPAT_STUB(func, type) \ - static int __ ## func(struct net_device *dev, \ - struct iw_request_info *info, \ - union iwreq_data *wrqu, \ - char *extra) \ - { \ - return func(dev, info, (type *)wrqu, extra); \ - } - -DEFINE_WEXT_COMPAT_STUB(cfg80211_wext_giwname, char) -DEFINE_WEXT_COMPAT_STUB(cfg80211_wext_siwfreq, struct iw_freq) -DEFINE_WEXT_COMPAT_STUB(cfg80211_wext_giwfreq, struct iw_freq) -DEFINE_WEXT_COMPAT_STUB(cfg80211_wext_siwmode, u32) -DEFINE_WEXT_COMPAT_STUB(cfg80211_wext_giwmode, u32) -DEFINE_WEXT_COMPAT_STUB(cfg80211_wext_giwrange, struct iw_point) -DEFINE_WEXT_COMPAT_STUB(cfg80211_wext_siwap, struct sockaddr) -DEFINE_WEXT_COMPAT_STUB(cfg80211_wext_giwap, struct sockaddr) -DEFINE_WEXT_COMPAT_STUB(cfg80211_wext_siwmlme, struct iw_point) -DEFINE_WEXT_COMPAT_STUB(cfg80211_wext_giwscan, struct iw_point) -DEFINE_WEXT_COMPAT_STUB(cfg80211_wext_siwessid, struct iw_point) -DEFINE_WEXT_COMPAT_STUB(cfg80211_wext_giwessid, struct iw_point) -DEFINE_WEXT_COMPAT_STUB(cfg80211_wext_siwrate, struct iw_param) -DEFINE_WEXT_COMPAT_STUB(cfg80211_wext_giwrate, struct iw_param) -DEFINE_WEXT_COMPAT_STUB(cfg80211_wext_siwrts, struct iw_param) -DEFINE_WEXT_COMPAT_STUB(cfg80211_wext_giwrts, struct iw_param) -DEFINE_WEXT_COMPAT_STUB(cfg80211_wext_siwfrag, struct iw_param) -DEFINE_WEXT_COMPAT_STUB(cfg80211_wext_giwfrag, struct iw_param) -DEFINE_WEXT_COMPAT_STUB(cfg80211_wext_siwretry, struct iw_param) -DEFINE_WEXT_COMPAT_STUB(cfg80211_wext_giwretry, struct iw_param) -DEFINE_WEXT_COMPAT_STUB(cfg80211_wext_siwencode, struct iw_point) -DEFINE_WEXT_COMPAT_STUB(cfg80211_wext_giwencode, struct iw_point) -DEFINE_WEXT_COMPAT_STUB(cfg80211_wext_giwpower, struct iw_param) -DEFINE_WEXT_COMPAT_STUB(cfg80211_wext_siwpower, struct iw_param) -DEFINE_WEXT_COMPAT_STUB(cfg80211_wext_siwgenie, struct iw_point) -DEFINE_WEXT_COMPAT_STUB(cfg80211_wext_giwauth, struct iw_param) -DEFINE_WEXT_COMPAT_STUB(cfg80211_wext_siwauth, struct iw_param) -DEFINE_WEXT_COMPAT_STUB(cfg80211_wext_siwencodeext, struct iw_point) -DEFINE_WEXT_COMPAT_STUB(cfg80211_wext_siwpmksa, struct iw_point) - static const iw_handler cfg80211_handlers[] = { - [IW_IOCTL_IDX(SIOCGIWNAME)] = __cfg80211_wext_giwname, - [IW_IOCTL_IDX(SIOCSIWFREQ)] = __cfg80211_wext_siwfreq, - [IW_IOCTL_IDX(SIOCGIWFREQ)] = __cfg80211_wext_giwfreq, - [IW_IOCTL_IDX(SIOCSIWMODE)] = __cfg80211_wext_siwmode, - [IW_IOCTL_IDX(SIOCGIWMODE)] = __cfg80211_wext_giwmode, - [IW_IOCTL_IDX(SIOCGIWRANGE)] = __cfg80211_wext_giwrange, - [IW_IOCTL_IDX(SIOCSIWAP)] = __cfg80211_wext_siwap, - [IW_IOCTL_IDX(SIOCGIWAP)] = __cfg80211_wext_giwap, - [IW_IOCTL_IDX(SIOCSIWMLME)] = __cfg80211_wext_siwmlme, - [IW_IOCTL_IDX(SIOCSIWSCAN)] = cfg80211_wext_siwscan, - [IW_IOCTL_IDX(SIOCGIWSCAN)] = __cfg80211_wext_giwscan, - [IW_IOCTL_IDX(SIOCSIWESSID)] = __cfg80211_wext_siwessid, - [IW_IOCTL_IDX(SIOCGIWESSID)] = __cfg80211_wext_giwessid, - [IW_IOCTL_IDX(SIOCSIWRATE)] = __cfg80211_wext_siwrate, - [IW_IOCTL_IDX(SIOCGIWRATE)] = __cfg80211_wext_giwrate, - [IW_IOCTL_IDX(SIOCSIWRTS)] = __cfg80211_wext_siwrts, - [IW_IOCTL_IDX(SIOCGIWRTS)] = __cfg80211_wext_giwrts, - [IW_IOCTL_IDX(SIOCSIWFRAG)] = __cfg80211_wext_siwfrag, - [IW_IOCTL_IDX(SIOCGIWFRAG)] = __cfg80211_wext_giwfrag, - [IW_IOCTL_IDX(SIOCSIWTXPOW)] = cfg80211_wext_siwtxpower, - [IW_IOCTL_IDX(SIOCGIWTXPOW)] = cfg80211_wext_giwtxpower, - [IW_IOCTL_IDX(SIOCSIWRETRY)] = __cfg80211_wext_siwretry, - [IW_IOCTL_IDX(SIOCGIWRETRY)] = __cfg80211_wext_giwretry, - [IW_IOCTL_IDX(SIOCSIWENCODE)] = __cfg80211_wext_siwencode, - [IW_IOCTL_IDX(SIOCGIWENCODE)] = __cfg80211_wext_giwencode, - [IW_IOCTL_IDX(SIOCSIWPOWER)] = __cfg80211_wext_siwpower, - [IW_IOCTL_IDX(SIOCGIWPOWER)] = __cfg80211_wext_giwpower, - [IW_IOCTL_IDX(SIOCSIWGENIE)] = __cfg80211_wext_siwgenie, - [IW_IOCTL_IDX(SIOCSIWAUTH)] = __cfg80211_wext_siwauth, - [IW_IOCTL_IDX(SIOCGIWAUTH)] = __cfg80211_wext_giwauth, - [IW_IOCTL_IDX(SIOCSIWENCODEEXT)]= __cfg80211_wext_siwencodeext, - [IW_IOCTL_IDX(SIOCSIWPMKSA)] = __cfg80211_wext_siwpmksa, + IW_HANDLER(SIOCGIWNAME, cfg80211_wext_giwname), + IW_HANDLER(SIOCSIWFREQ, cfg80211_wext_siwfreq), + IW_HANDLER(SIOCGIWFREQ, cfg80211_wext_giwfreq), + IW_HANDLER(SIOCSIWMODE, cfg80211_wext_siwmode), + IW_HANDLER(SIOCGIWMODE, cfg80211_wext_giwmode), + IW_HANDLER(SIOCGIWRANGE, cfg80211_wext_giwrange), + IW_HANDLER(SIOCSIWAP, cfg80211_wext_siwap), + IW_HANDLER(SIOCGIWAP, cfg80211_wext_giwap), + IW_HANDLER(SIOCSIWMLME, cfg80211_wext_siwmlme), + IW_HANDLER(SIOCSIWSCAN, cfg80211_wext_siwscan), + IW_HANDLER(SIOCGIWSCAN, cfg80211_wext_giwscan), + IW_HANDLER(SIOCSIWESSID, cfg80211_wext_siwessid), + IW_HANDLER(SIOCGIWESSID, cfg80211_wext_giwessid), + IW_HANDLER(SIOCSIWRATE, cfg80211_wext_siwrate), + IW_HANDLER(SIOCGIWRATE, cfg80211_wext_giwrate), + IW_HANDLER(SIOCSIWRTS, cfg80211_wext_siwrts), + IW_HANDLER(SIOCGIWRTS, cfg80211_wext_giwrts), + IW_HANDLER(SIOCSIWFRAG, cfg80211_wext_siwfrag), + IW_HANDLER(SIOCGIWFRAG, cfg80211_wext_giwfrag), + IW_HANDLER(SIOCSIWTXPOW, cfg80211_wext_siwtxpower), + IW_HANDLER(SIOCGIWTXPOW, cfg80211_wext_giwtxpower), + IW_HANDLER(SIOCSIWRETRY, cfg80211_wext_siwretry), + IW_HANDLER(SIOCGIWRETRY, cfg80211_wext_giwretry), + IW_HANDLER(SIOCSIWENCODE, cfg80211_wext_siwencode), + IW_HANDLER(SIOCGIWENCODE, cfg80211_wext_giwencode), + IW_HANDLER(SIOCSIWPOWER, cfg80211_wext_siwpower), + IW_HANDLER(SIOCGIWPOWER, cfg80211_wext_giwpower), + IW_HANDLER(SIOCSIWGENIE, cfg80211_wext_siwgenie), + IW_HANDLER(SIOCSIWAUTH, cfg80211_wext_siwauth), + IW_HANDLER(SIOCGIWAUTH, cfg80211_wext_giwauth), + IW_HANDLER(SIOCSIWENCODEEXT, cfg80211_wext_siwencodeext), + IW_HANDLER(SIOCSIWPMKSA, cfg80211_wext_siwpmksa), }; const struct iw_handler_def cfg80211_wext_handler = { diff --git a/net/wireless/wext-compat.h b/net/wireless/wext-compat.h index 8d3cc1552e2f..c02eb789e676 100644 --- a/net/wireless/wext-compat.h +++ b/net/wireless/wext-compat.h @@ -13,7 +13,7 @@ int cfg80211_ibss_wext_siwfreq(struct net_device *dev, struct iw_request_info *info, - struct iw_freq *freq, char *extra); + struct iw_freq *wextfreq, char *extra); int cfg80211_ibss_wext_giwfreq(struct net_device *dev, struct iw_request_info *info, struct iw_freq *freq, char *extra); @@ -32,7 +32,7 @@ int cfg80211_ibss_wext_giwessid(struct net_device *dev, int cfg80211_mgd_wext_siwfreq(struct net_device *dev, struct iw_request_info *info, - struct iw_freq *freq, char *extra); + struct iw_freq *wextfreq, char *extra); int cfg80211_mgd_wext_giwfreq(struct net_device *dev, struct iw_request_info *info, struct iw_freq *freq, char *extra); @@ -51,10 +51,10 @@ int cfg80211_mgd_wext_giwessid(struct net_device *dev, int cfg80211_wext_siwmlme(struct net_device *dev, struct iw_request_info *info, - struct iw_point *data, char *extra); + union iwreq_data *wrqu, char *extra); int cfg80211_wext_siwgenie(struct net_device *dev, struct iw_request_info *info, - struct iw_point *data, char *extra); + union iwreq_data *wrqu, char *extra); int cfg80211_wext_freq(struct iw_freq *freq); diff --git a/net/wireless/wext-sme.c b/net/wireless/wext-sme.c index 68f45afc352d..191c6d98c700 100644 --- a/net/wireless/wext-sme.c +++ b/net/wireless/wext-sme.c @@ -324,8 +324,9 @@ int cfg80211_mgd_wext_giwap(struct net_device *dev, int cfg80211_wext_siwgenie(struct net_device *dev, struct iw_request_info *info, - struct iw_point *data, char *extra) + union iwreq_data *wrqu, char *extra) { + struct iw_point *data = &wrqu->data; struct wireless_dev *wdev = dev->ieee80211_ptr; struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy); u8 *ie = extra; @@ -374,7 +375,7 @@ int cfg80211_wext_siwgenie(struct net_device *dev, int cfg80211_wext_siwmlme(struct net_device *dev, struct iw_request_info *info, - struct iw_point *data, char *extra) + union iwreq_data *wrqu, char *extra) { struct wireless_dev *wdev = dev->ieee80211_ptr; struct iw_mlme *mlme = (struct iw_mlme *)extra;