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[23.128.96.18]) by mx.google.com with ESMTP id b2si2834994ejc.314.2021.07.27.06.47.08; Tue, 27 Jul 2021 06:47:08 -0700 (PDT) Received-SPF: pass (google.com: domain of netdev-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) client-ip=23.128.96.18; Authentication-Results: mx.google.com; dkim=pass header.i=@kernel.org header.s=k20201202 header.b=fNQSQSiS; spf=pass (google.com: domain of netdev-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) smtp.mailfrom=netdev-owner@vger.kernel.org; dmarc=pass (p=NONE sp=NONE dis=NONE) header.from=kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S237283AbhG0NrB (ORCPT + 8 others); Tue, 27 Jul 2021 09:47:01 -0400 Received: from mail.kernel.org ([198.145.29.99]:46838 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S236989AbhG0Nqa (ORCPT ); Tue, 27 Jul 2021 09:46:30 -0400 Received: by mail.kernel.org (Postfix) with ESMTPSA id 0A10C61AA2; Tue, 27 Jul 2021 13:46:28 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1627393590; bh=yC1msifH8Lj6FuTjA7nV3iK5yZLMGuC/TX+RR2SaT6s=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=fNQSQSiSKTM4puO5uGTDEhbCFdFE73z/2Q5NRIOCXY17FouzNAnIs81ewPYbrqsPc BAB2Futu1QaTQ4bHi9W+uKD5GPQ3gUaMEJY3cNUGNkg+nIIzkxrOrilx6wfltDC+NX oHFBzPDTfhgiLP8pjRuPUiSPQkQD7ckmsul+GywZRKyirwLoifC3dPCmB/Iv7nLNqi hzJ7Q7/MT/QeR7ROGqtEA23qbkdwzDBscfi+y6d+y3F6HJMYoJzac+fGQiOA+Dj5eN leFUBBzwRXjVzqyHCncvY3Lqny5+bl7gSN8Z6wwZLSe2MSUT70j9rSW4ITtMMw8W7t FE218zgSs22Sg== From: Arnd Bergmann To: netdev@vger.kernel.org Cc: linux-kernel@vger.kernel.org, Jakub Kicinski , "David S. Miller" , Arnd Bergmann , Thomas Sailer , Joerg Reuter , Jean-Paul Roubelat , linux-hams@vger.kernel.org Subject: [PATCH net-next v3 18/31] hamradio: use ndo_siocdevprivate Date: Tue, 27 Jul 2021 15:45:04 +0200 Message-Id: <20210727134517.1384504-19-arnd@kernel.org> X-Mailer: git-send-email 2.29.2 In-Reply-To: <20210727134517.1384504-1-arnd@kernel.org> References: <20210727134517.1384504-1-arnd@kernel.org> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: netdev@vger.kernel.org From: Arnd Bergmann hamradio uses a set of private ioctls that do seem to work correctly in compat mode, as they only rely on the ifr_data pointer. Move them over to the ndo_siocdevprivate callback as a cleanup. Cc: Thomas Sailer Cc: Joerg Reuter Cc: Jean-Paul Roubelat Cc: linux-hams@vger.kernel.org Signed-off-by: Arnd Bergmann --- drivers/net/hamradio/baycom_epp.c | 9 +++++---- drivers/net/hamradio/baycom_par.c | 12 ++++++------ drivers/net/hamradio/baycom_ser_fdx.c | 12 ++++++------ drivers/net/hamradio/baycom_ser_hdx.c | 12 ++++++------ drivers/net/hamradio/bpqether.c | 9 +++++---- drivers/net/hamradio/dmascc.c | 18 ++++++++---------- drivers/net/hamradio/hdlcdrv.c | 20 +++++++++++--------- drivers/net/hamradio/scc.c | 13 ++++++++----- drivers/net/hamradio/yam.c | 19 +++++++++---------- include/linux/hdlcdrv.h | 2 +- 10 files changed, 65 insertions(+), 61 deletions(-) -- 2.29.2 diff --git a/drivers/net/hamradio/baycom_epp.c b/drivers/net/hamradio/baycom_epp.c index 4435a1195194..775dcf4ebde5 100644 --- a/drivers/net/hamradio/baycom_epp.c +++ b/drivers/net/hamradio/baycom_epp.c @@ -1005,7 +1005,8 @@ static int baycom_setmode(struct baycom_state *bc, const char *modestr) /* --------------------------------------------------------------------- */ -static int baycom_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd) +static int baycom_siocdevprivate(struct net_device *dev, struct ifreq *ifr, + void __user *data, int cmd) { struct baycom_state *bc = netdev_priv(dev); struct hdlcdrv_ioctl hi; @@ -1013,7 +1014,7 @@ static int baycom_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd) if (cmd != SIOCDEVPRIVATE) return -ENOIOCTLCMD; - if (copy_from_user(&hi, ifr->ifr_data, sizeof(hi))) + if (copy_from_user(&hi, data, sizeof(hi))) return -EFAULT; switch (hi.cmd) { default: @@ -1104,7 +1105,7 @@ static int baycom_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd) return HDLCDRV_PARMASK_IOBASE; } - if (copy_to_user(ifr->ifr_data, &hi, sizeof(hi))) + if (copy_to_user(data, &hi, sizeof(hi))) return -EFAULT; return 0; } @@ -1114,7 +1115,7 @@ static int baycom_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd) static const struct net_device_ops baycom_netdev_ops = { .ndo_open = epp_open, .ndo_stop = epp_close, - .ndo_do_ioctl = baycom_ioctl, + .ndo_siocdevprivate = baycom_siocdevprivate, .ndo_start_xmit = baycom_send_packet, .ndo_set_mac_address = baycom_set_mac_address, }; diff --git a/drivers/net/hamradio/baycom_par.c b/drivers/net/hamradio/baycom_par.c index 6a3dc7b3f28a..fd7da5bb1fa5 100644 --- a/drivers/net/hamradio/baycom_par.c +++ b/drivers/net/hamradio/baycom_par.c @@ -380,7 +380,7 @@ static int par96_close(struct net_device *dev) * ===================== hdlcdrv driver interface ========================= */ -static int baycom_ioctl(struct net_device *dev, struct ifreq *ifr, +static int baycom_ioctl(struct net_device *dev, void __user *data, struct hdlcdrv_ioctl *hi, int cmd); /* --------------------------------------------------------------------- */ @@ -408,7 +408,7 @@ static int baycom_setmode(struct baycom_state *bc, const char *modestr) /* --------------------------------------------------------------------- */ -static int baycom_ioctl(struct net_device *dev, struct ifreq *ifr, +static int baycom_ioctl(struct net_device *dev, void __user *data, struct hdlcdrv_ioctl *hi, int cmd) { struct baycom_state *bc; @@ -428,7 +428,7 @@ static int baycom_ioctl(struct net_device *dev, struct ifreq *ifr, case HDLCDRVCTL_GETMODE: strcpy(hi->data.modename, bc->options ? "par96" : "picpar"); - if (copy_to_user(ifr->ifr_data, hi, sizeof(struct hdlcdrv_ioctl))) + if (copy_to_user(data, hi, sizeof(struct hdlcdrv_ioctl))) return -EFAULT; return 0; @@ -440,7 +440,7 @@ static int baycom_ioctl(struct net_device *dev, struct ifreq *ifr, case HDLCDRVCTL_MODELIST: strcpy(hi->data.modename, "par96,picpar"); - if (copy_to_user(ifr->ifr_data, hi, sizeof(struct hdlcdrv_ioctl))) + if (copy_to_user(data, hi, sizeof(struct hdlcdrv_ioctl))) return -EFAULT; return 0; @@ -449,7 +449,7 @@ static int baycom_ioctl(struct net_device *dev, struct ifreq *ifr, } - if (copy_from_user(&bi, ifr->ifr_data, sizeof(bi))) + if (copy_from_user(&bi, data, sizeof(bi))) return -EFAULT; switch (bi.cmd) { default: @@ -464,7 +464,7 @@ static int baycom_ioctl(struct net_device *dev, struct ifreq *ifr, #endif /* BAYCOM_DEBUG */ } - if (copy_to_user(ifr->ifr_data, &bi, sizeof(bi))) + if (copy_to_user(data, &bi, sizeof(bi))) return -EFAULT; return 0; diff --git a/drivers/net/hamradio/baycom_ser_fdx.c b/drivers/net/hamradio/baycom_ser_fdx.c index 04bb409707fc..646f605e358f 100644 --- a/drivers/net/hamradio/baycom_ser_fdx.c +++ b/drivers/net/hamradio/baycom_ser_fdx.c @@ -462,7 +462,7 @@ static int ser12_close(struct net_device *dev) /* --------------------------------------------------------------------- */ -static int baycom_ioctl(struct net_device *dev, struct ifreq *ifr, +static int baycom_ioctl(struct net_device *dev, void __user *data, struct hdlcdrv_ioctl *hi, int cmd); /* --------------------------------------------------------------------- */ @@ -497,7 +497,7 @@ static int baycom_setmode(struct baycom_state *bc, const char *modestr) /* --------------------------------------------------------------------- */ -static int baycom_ioctl(struct net_device *dev, struct ifreq *ifr, +static int baycom_ioctl(struct net_device *dev, void __user *data, struct hdlcdrv_ioctl *hi, int cmd) { struct baycom_state *bc; @@ -519,7 +519,7 @@ static int baycom_ioctl(struct net_device *dev, struct ifreq *ifr, sprintf(hi->data.modename, "ser%u", bc->baud / 100); if (bc->opt_dcd <= 0) strcat(hi->data.modename, (!bc->opt_dcd) ? "*" : "+"); - if (copy_to_user(ifr->ifr_data, hi, sizeof(struct hdlcdrv_ioctl))) + if (copy_to_user(data, hi, sizeof(struct hdlcdrv_ioctl))) return -EFAULT; return 0; @@ -531,7 +531,7 @@ static int baycom_ioctl(struct net_device *dev, struct ifreq *ifr, case HDLCDRVCTL_MODELIST: strcpy(hi->data.modename, "ser12,ser3,ser24"); - if (copy_to_user(ifr->ifr_data, hi, sizeof(struct hdlcdrv_ioctl))) + if (copy_to_user(data, hi, sizeof(struct hdlcdrv_ioctl))) return -EFAULT; return 0; @@ -540,7 +540,7 @@ static int baycom_ioctl(struct net_device *dev, struct ifreq *ifr, } - if (copy_from_user(&bi, ifr->ifr_data, sizeof(bi))) + if (copy_from_user(&bi, data, sizeof(bi))) return -EFAULT; switch (bi.cmd) { default: @@ -555,7 +555,7 @@ static int baycom_ioctl(struct net_device *dev, struct ifreq *ifr, #endif /* BAYCOM_DEBUG */ } - if (copy_to_user(ifr->ifr_data, &bi, sizeof(bi))) + if (copy_to_user(data, &bi, sizeof(bi))) return -EFAULT; return 0; diff --git a/drivers/net/hamradio/baycom_ser_hdx.c b/drivers/net/hamradio/baycom_ser_hdx.c index a1acb3a47bdb..5d1ab4840753 100644 --- a/drivers/net/hamradio/baycom_ser_hdx.c +++ b/drivers/net/hamradio/baycom_ser_hdx.c @@ -521,7 +521,7 @@ static int ser12_close(struct net_device *dev) /* --------------------------------------------------------------------- */ -static int baycom_ioctl(struct net_device *dev, struct ifreq *ifr, +static int baycom_ioctl(struct net_device *dev, void __user *data, struct hdlcdrv_ioctl *hi, int cmd); /* --------------------------------------------------------------------- */ @@ -551,7 +551,7 @@ static int baycom_setmode(struct baycom_state *bc, const char *modestr) /* --------------------------------------------------------------------- */ -static int baycom_ioctl(struct net_device *dev, struct ifreq *ifr, +static int baycom_ioctl(struct net_device *dev, void __user *data, struct hdlcdrv_ioctl *hi, int cmd) { struct baycom_state *bc; @@ -573,7 +573,7 @@ static int baycom_ioctl(struct net_device *dev, struct ifreq *ifr, strcpy(hi->data.modename, "ser12"); if (bc->opt_dcd <= 0) strcat(hi->data.modename, (!bc->opt_dcd) ? "*" : (bc->opt_dcd == -2) ? "@" : "+"); - if (copy_to_user(ifr->ifr_data, hi, sizeof(struct hdlcdrv_ioctl))) + if (copy_to_user(data, hi, sizeof(struct hdlcdrv_ioctl))) return -EFAULT; return 0; @@ -585,7 +585,7 @@ static int baycom_ioctl(struct net_device *dev, struct ifreq *ifr, case HDLCDRVCTL_MODELIST: strcpy(hi->data.modename, "ser12"); - if (copy_to_user(ifr->ifr_data, hi, sizeof(struct hdlcdrv_ioctl))) + if (copy_to_user(data, hi, sizeof(struct hdlcdrv_ioctl))) return -EFAULT; return 0; @@ -594,7 +594,7 @@ static int baycom_ioctl(struct net_device *dev, struct ifreq *ifr, } - if (copy_from_user(&bi, ifr->ifr_data, sizeof(bi))) + if (copy_from_user(&bi, data, sizeof(bi))) return -EFAULT; switch (bi.cmd) { default: @@ -609,7 +609,7 @@ static int baycom_ioctl(struct net_device *dev, struct ifreq *ifr, #endif /* BAYCOM_DEBUG */ } - if (copy_to_user(ifr->ifr_data, &bi, sizeof(bi))) + if (copy_to_user(data, &bi, sizeof(bi))) return -EFAULT; return 0; diff --git a/drivers/net/hamradio/bpqether.c b/drivers/net/hamradio/bpqether.c index 0e623c2e8b2d..d967b0748773 100644 --- a/drivers/net/hamradio/bpqether.c +++ b/drivers/net/hamradio/bpqether.c @@ -314,9 +314,10 @@ static int bpq_set_mac_address(struct net_device *dev, void *addr) * source ethernet address (broadcast * or multicast: accept all) */ -static int bpq_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd) +static int bpq_siocdevprivate(struct net_device *dev, struct ifreq *ifr, + void __user *data, int cmd) { - struct bpq_ethaddr __user *ethaddr = ifr->ifr_data; + struct bpq_ethaddr __user *ethaddr = data; struct bpqdev *bpq = netdev_priv(dev); struct bpq_req req; @@ -325,7 +326,7 @@ static int bpq_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd) switch (cmd) { case SIOCSBPQETHOPT: - if (copy_from_user(&req, ifr->ifr_data, sizeof(struct bpq_req))) + if (copy_from_user(&req, data, sizeof(struct bpq_req))) return -EFAULT; switch (req.cmd) { case SIOCGBPQETHPARAM: @@ -448,7 +449,7 @@ static const struct net_device_ops bpq_netdev_ops = { .ndo_stop = bpq_close, .ndo_start_xmit = bpq_xmit, .ndo_set_mac_address = bpq_set_mac_address, - .ndo_do_ioctl = bpq_ioctl, + .ndo_siocdevprivate = bpq_siocdevprivate, }; static void bpq_setup(struct net_device *dev) diff --git a/drivers/net/hamradio/dmascc.c b/drivers/net/hamradio/dmascc.c index c25c8c99c5c7..b50b7fafd8d6 100644 --- a/drivers/net/hamradio/dmascc.c +++ b/drivers/net/hamradio/dmascc.c @@ -225,7 +225,8 @@ static int read_scc_data(struct scc_priv *priv); static int scc_open(struct net_device *dev); static int scc_close(struct net_device *dev); -static int scc_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd); +static int scc_siocdevprivate(struct net_device *dev, struct ifreq *ifr, + void __user *data, int cmd); static int scc_send_packet(struct sk_buff *skb, struct net_device *dev); static int scc_set_mac_address(struct net_device *dev, void *sa); @@ -432,7 +433,7 @@ static const struct net_device_ops scc_netdev_ops = { .ndo_open = scc_open, .ndo_stop = scc_close, .ndo_start_xmit = scc_send_packet, - .ndo_do_ioctl = scc_ioctl, + .ndo_siocdevprivate = scc_siocdevprivate, .ndo_set_mac_address = scc_set_mac_address, }; @@ -881,15 +882,13 @@ static int scc_close(struct net_device *dev) } -static int scc_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd) +static int scc_siocdevprivate(struct net_device *dev, struct ifreq *ifr, void __user *data, int cmd) { struct scc_priv *priv = dev->ml_priv; switch (cmd) { case SIOCGSCCPARAM: - if (copy_to_user - (ifr->ifr_data, &priv->param, - sizeof(struct scc_param))) + if (copy_to_user(data, &priv->param, sizeof(struct scc_param))) return -EFAULT; return 0; case SIOCSSCCPARAM: @@ -897,13 +896,12 @@ static int scc_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd) return -EPERM; if (netif_running(dev)) return -EAGAIN; - if (copy_from_user - (&priv->param, ifr->ifr_data, - sizeof(struct scc_param))) + if (copy_from_user(&priv->param, data, + sizeof(struct scc_param))) return -EFAULT; return 0; default: - return -EINVAL; + return -EOPNOTSUPP; } } diff --git a/drivers/net/hamradio/hdlcdrv.c b/drivers/net/hamradio/hdlcdrv.c index cbaf1cdde7cb..5805cfc83854 100644 --- a/drivers/net/hamradio/hdlcdrv.c +++ b/drivers/net/hamradio/hdlcdrv.c @@ -483,23 +483,25 @@ static int hdlcdrv_close(struct net_device *dev) /* --------------------------------------------------------------------- */ -static int hdlcdrv_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd) +static int hdlcdrv_siocdevprivate(struct net_device *dev, struct ifreq *ifr, + void __user *data, int cmd) { struct hdlcdrv_state *s = netdev_priv(dev); struct hdlcdrv_ioctl bi; - if (cmd != SIOCDEVPRIVATE) { - if (s->ops && s->ops->ioctl) - return s->ops->ioctl(dev, ifr, &bi, cmd); + if (cmd != SIOCDEVPRIVATE) return -ENOIOCTLCMD; - } - if (copy_from_user(&bi, ifr->ifr_data, sizeof(bi))) + + if (in_compat_syscall()) /* to be implemented */ + return -ENOIOCTLCMD; + + if (copy_from_user(&bi, data, sizeof(bi))) return -EFAULT; switch (bi.cmd) { default: if (s->ops && s->ops->ioctl) - return s->ops->ioctl(dev, ifr, &bi, cmd); + return s->ops->ioctl(dev, data, &bi, cmd); return -ENOIOCTLCMD; case HDLCDRVCTL_GETCHANNELPAR: @@ -605,7 +607,7 @@ static int hdlcdrv_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd) break; } - if (copy_to_user(ifr->ifr_data, &bi, sizeof(bi))) + if (copy_to_user(data, &bi, sizeof(bi))) return -EFAULT; return 0; @@ -617,7 +619,7 @@ static const struct net_device_ops hdlcdrv_netdev = { .ndo_open = hdlcdrv_open, .ndo_stop = hdlcdrv_close, .ndo_start_xmit = hdlcdrv_send_packet, - .ndo_do_ioctl = hdlcdrv_ioctl, + .ndo_siocdevprivate = hdlcdrv_siocdevprivate, .ndo_set_mac_address = hdlcdrv_set_mac_address, }; diff --git a/drivers/net/hamradio/scc.c b/drivers/net/hamradio/scc.c index 3f1edd0526a4..e0bb131a33d7 100644 --- a/drivers/net/hamradio/scc.c +++ b/drivers/net/hamradio/scc.c @@ -210,7 +210,8 @@ static int scc_net_close(struct net_device *dev); static void scc_net_rx(struct scc_channel *scc, struct sk_buff *skb); static netdev_tx_t scc_net_tx(struct sk_buff *skb, struct net_device *dev); -static int scc_net_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd); +static int scc_net_siocdevprivate(struct net_device *dev, struct ifreq *ifr, + void __user *data, int cmd); static int scc_net_set_mac_address(struct net_device *dev, void *addr); static struct net_device_stats * scc_net_get_stats(struct net_device *dev); @@ -1550,7 +1551,7 @@ static const struct net_device_ops scc_netdev_ops = { .ndo_start_xmit = scc_net_tx, .ndo_set_mac_address = scc_net_set_mac_address, .ndo_get_stats = scc_net_get_stats, - .ndo_do_ioctl = scc_net_ioctl, + .ndo_siocdevprivate = scc_net_siocdevprivate, }; /* ----> Initialize device <----- */ @@ -1703,7 +1704,8 @@ static netdev_tx_t scc_net_tx(struct sk_buff *skb, struct net_device *dev) * SIOCSCCCAL - send calib. pattern arg: (struct scc_calibrate *) arg */ -static int scc_net_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd) +static int scc_net_siocdevprivate(struct net_device *dev, + struct ifreq *ifr, void __user *arg, int cmd) { struct scc_kiss_cmd kiss_cmd; struct scc_mem_config memcfg; @@ -1712,8 +1714,6 @@ static int scc_net_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd) struct scc_channel *scc = (struct scc_channel *) dev->ml_priv; int chan; unsigned char device_name[IFNAMSIZ]; - void __user *arg = ifr->ifr_data; - if (!Driver_Initialized) { @@ -1722,6 +1722,9 @@ static int scc_net_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd) int found = 1; if (!capable(CAP_SYS_RAWIO)) return -EPERM; + if (in_compat_syscall()) + return -EOPNOTSUPP; + if (!arg) return -EFAULT; if (Nchips >= SCC_MAXCHIPS) diff --git a/drivers/net/hamradio/yam.c b/drivers/net/hamradio/yam.c index d4911041596c..6ddacbdb224b 100644 --- a/drivers/net/hamradio/yam.c +++ b/drivers/net/hamradio/yam.c @@ -920,15 +920,15 @@ static int yam_close(struct net_device *dev) /* --------------------------------------------------------------------- */ -static int yam_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd) +static int yam_siocdevprivate(struct net_device *dev, struct ifreq *ifr, void __user *data, int cmd) { struct yam_port *yp = netdev_priv(dev); struct yamdrv_ioctl_cfg yi; struct yamdrv_ioctl_mcs *ym; int ioctl_cmd; - if (copy_from_user(&ioctl_cmd, ifr->ifr_data, sizeof(int))) - return -EFAULT; + if (copy_from_user(&ioctl_cmd, data, sizeof(int))) + return -EFAULT; if (yp->magic != YAM_MAGIC) return -EINVAL; @@ -947,8 +947,7 @@ static int yam_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd) case SIOCYAMSMCS: if (netif_running(dev)) return -EINVAL; /* Cannot change this parameter when up */ - ym = memdup_user(ifr->ifr_data, - sizeof(struct yamdrv_ioctl_mcs)); + ym = memdup_user(data, sizeof(struct yamdrv_ioctl_mcs)); if (IS_ERR(ym)) return PTR_ERR(ym); if (ym->cmd != SIOCYAMSMCS) @@ -965,8 +964,8 @@ static int yam_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd) case SIOCYAMSCFG: if (!capable(CAP_SYS_RAWIO)) return -EPERM; - if (copy_from_user(&yi, ifr->ifr_data, sizeof(struct yamdrv_ioctl_cfg))) - return -EFAULT; + if (copy_from_user(&yi, data, sizeof(struct yamdrv_ioctl_cfg))) + return -EFAULT; if (yi.cmd != SIOCYAMSCFG) return -EINVAL; @@ -1045,8 +1044,8 @@ static int yam_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd) yi.cfg.txtail = yp->txtail; yi.cfg.persist = yp->pers; yi.cfg.slottime = yp->slot; - if (copy_to_user(ifr->ifr_data, &yi, sizeof(struct yamdrv_ioctl_cfg))) - return -EFAULT; + if (copy_to_user(data, &yi, sizeof(struct yamdrv_ioctl_cfg))) + return -EFAULT; break; default: @@ -1074,7 +1073,7 @@ static const struct net_device_ops yam_netdev_ops = { .ndo_open = yam_open, .ndo_stop = yam_close, .ndo_start_xmit = yam_send_packet, - .ndo_do_ioctl = yam_ioctl, + .ndo_siocdevprivate = yam_siocdevprivate, .ndo_set_mac_address = yam_set_mac_address, }; diff --git a/include/linux/hdlcdrv.h b/include/linux/hdlcdrv.h index d4d633a49d36..5d70c3f98f5b 100644 --- a/include/linux/hdlcdrv.h +++ b/include/linux/hdlcdrv.h @@ -79,7 +79,7 @@ struct hdlcdrv_ops { */ int (*open)(struct net_device *); int (*close)(struct net_device *); - int (*ioctl)(struct net_device *, struct ifreq *, + int (*ioctl)(struct net_device *, void __user *, struct hdlcdrv_ioctl *, int); };