[net-next,v3,24/31] wan: use ndo_siocdevprivate

Message ID	20210727134517.1384504-25-arnd@kernel.org
State	New
Headers	show Delivered-To: patch@linaro.org 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; From: Arnd Bergmann <arnd@kernel.org> To: netdev@vger.kernel.org Cc: linux-kernel@vger.kernel.org, Jakub Kicinski <kuba@kernel.org>, "David S. Miller" <davem@davemloft.net>, Arnd Bergmann <arnd@arndb.de>, Krzysztof Halasa <khc@pm.waw.pl>, Kevin Curtis <kevin.curtis@farsite.co.uk> Subject: [PATCH net-next v3 24/31] wan: use ndo_siocdevprivate Date: Tue, 27 Jul 2021 15:45:10 +0200 Message-Id: <20210727134517.1384504-25-arnd@kernel.org> In-Reply-To: <20210727134517.1384504-1-arnd@kernel.org> References: <20210727134517.1384504-1-arnd@kernel.org> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Precedence: bulk
Series	ndo_ioctl rework \| expand [net-next,v3,00/31] ndo_ioctl rework [net-next,v3,01/31] net: split out SIOCDEVPRIVATE handling from dev_ioctl [net-next,v3,02/31] staging: rtlwifi: use siocdevprivate [net-next,v3,03/31] staging: wlan-ng: use siocdevprivate [net-next,v3,04/31] hostap: use ndo_siocdevprivate [net-next,v3,05/31] bridge: use ndo_siocdevprivate [net-next,v3,06/31] phonet: use siocdevprivate [net-next,v3,07/31] tulip: use ndo_siocdevprivate [net-next,v3,08/31] bonding: use siocdevprivate [net-next,v3,09/31] appletalk: use ndo_siocdevprivate [net-next,v3,10/31] hamachi: use ndo_siocdevprivate [net-next,v3,11/31] tehuti: use ndo_siocdevprivate [net-next,v3,12/31] eql: use ndo_siocdevprivate [net-next,v3,13/31] fddi: use ndo_siocdevprivate [net-next,v3,14/31] net: usb: use ndo_siocdevprivate [net-next,v3,15/31] slip/plip: use ndo_siocdevprivate [net-next,v3,16/31] qeth: use ndo_siocdevprivate [net-next,v3,17/31] cxgb3: use ndo_siocdevprivate [net-next,v3,18/31] hamradio: use ndo_siocdevprivate [net-next,v3,19/31] airo: use ndo_siocdevprivate [net-next,v3,20/31] ip_tunnel: use ndo_siocdevprivate [net-next,v3,21/31] hippi: use ndo_siocdevprivate [net-next,v3,22/31] sb1000: use ndo_siocdevprivate [net-next,v3,23/31] ppp: use ndo_siocdevprivate [net-next,v3,24/31] wan: use ndo_siocdevprivate [net-next,v3,25/31] wan: cosa: remove dead cosa_net_ioctl() function [net-next,v3,26/31] dev_ioctl: pass SIOCDEVPRIVATE data separately [net-next,v3,27/31] dev_ioctl: split out ndo_eth_ioctl [net-next,v3,28/31] net: split out ndo_siowandev ioctl [net-next,v3,29/31] net: socket: return changed ifreq from SIOCDEVPRIVATE [net-next,v3,30/31] net: bridge: move bridge ioctls out of .ndo_do_ioctl [net-next,v3,31/31] net: bonding: move ioctl handling to private ndo operation

diff --git a/drivers/net/wan/c101.c b/drivers/net/wan/c101.c index 059c2f7133be..ca308230500d 100644 --- a/drivers/net/wan/c101.c +++ b/drivers/net/wan/c101.c @@ -208,14 +208,12 @@ static int c101_close(struct net_device *dev) return 0; } -static int c101_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd) +static int c101_siocdevprivate(struct net_device *dev, struct ifreq *ifr, + void __user *data, int cmd) { - const size_t size = sizeof(sync_serial_settings); - sync_serial_settings new_line; - sync_serial_settings __user *line = ifr->ifr_settings.ifs_ifsu.sync; +#ifdef DEBUG_RINGS port_t *port = dev_to_port(dev); -#ifdef DEBUG_RINGS if (cmd == SIOCDEVPRIVATE) { sca_dump_rings(dev); printk(KERN_DEBUG "MSCI1: ST: %02x %02x %02x %02x\n", @@ -226,6 +224,17 @@ static int c101_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd) return 0; } #endif + + return -EOPNOTSUPP; +} + +static int c101_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd) +{ + const size_t size = sizeof(sync_serial_settings); + sync_serial_settings new_line; + sync_serial_settings __user *line = ifr->ifr_settings.ifs_ifsu.sync; + port_t *port = dev_to_port(dev); + if (cmd != SIOCWANDEV) return hdlc_ioctl(dev, ifr, cmd); @@ -287,6 +296,7 @@ static const struct net_device_ops c101_ops = { .ndo_stop = c101_close, .ndo_start_xmit = hdlc_start_xmit, .ndo_do_ioctl = c101_ioctl, + .ndo_siocdevprivate = c101_siocdevprivate, }; static int __init c101_run(unsigned long irq, unsigned long winbase) diff --git a/drivers/net/wan/farsync.c b/drivers/net/wan/farsync.c index b3466e084e84..d0e3cab98645 100644 --- a/drivers/net/wan/farsync.c +++ b/drivers/net/wan/farsync.c @@ -1909,7 +1909,7 @@ fst_get_iface(struct fst_card_info *card, struct fst_port_info *port, } static int -fst_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd) +fst_siocdevprivate(struct net_device *dev, struct ifreq *ifr, void __user *data, int cmd) { struct fst_card_info *card; struct fst_port_info *port; @@ -1918,7 +1918,7 @@ fst_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd) unsigned long flags; void *buf; - dbg(DBG_IOCTL, "ioctl: %x, %p\n", cmd, ifr->ifr_data); + dbg(DBG_IOCTL, "ioctl: %x, %p\n", cmd, data); port = dev_to_port(dev); card = port->card; @@ -1942,11 +1942,10 @@ fst_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd) /* First copy in the header with the length and offset of data * to write */ - if (!ifr->ifr_data) + if (!data) return -EINVAL; - if (copy_from_user(&wrthdr, ifr->ifr_data, - sizeof(struct fstioc_write))) + if (copy_from_user(&wrthdr, data, sizeof(struct fstioc_write))) return -EFAULT; /* Sanity check the parameters. We don't support partial writes @@ -1958,7 +1957,7 @@ fst_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd) /* Now copy the data to the card. */ - buf = memdup_user(ifr->ifr_data + sizeof(struct fstioc_write), + buf = memdup_user(data + sizeof(struct fstioc_write), wrthdr.size); if (IS_ERR(buf)) return PTR_ERR(buf); @@ -1991,12 +1990,12 @@ fst_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd) } } - if (!ifr->ifr_data) + if (!data) return -EINVAL; gather_conf_info(card, port, &info); - if (copy_to_user(ifr->ifr_data, &info, sizeof(info))) + if (copy_to_user(data, &info, sizeof(info))) return -EFAULT; return 0; @@ -2011,11 +2010,30 @@ fst_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd) card->card_no, card->state); return -EIO; } - if (copy_from_user(&info, ifr->ifr_data, sizeof(info))) + if (copy_from_user(&info, data, sizeof(info))) return -EFAULT; return set_conf_from_info(card, port, &info); + default: + return -EINVAL; + } +} +static int +fst_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd) +{ + struct fst_card_info *card; + struct fst_port_info *port; + + dbg(DBG_IOCTL, "ioctl: %x, %x\n", cmd, ifr->ifr_settings.type); + + port = dev_to_port(dev); + card = port->card; + + if (!capable(CAP_NET_ADMIN)) + return -EPERM; + + switch (cmd) { case SIOCWANDEV: switch (ifr->ifr_settings.type) { case IF_GET_IFACE: @@ -2310,7 +2328,8 @@ static const struct net_device_ops fst_ops = { .ndo_open = fst_open, .ndo_stop = fst_close, .ndo_start_xmit = hdlc_start_xmit, - .ndo_do_ioctl = fst_ioctl, + .ndo_do_ioctl = fst_ioctl, + .ndo_siocdevprivate = fst_siocdevprivate, .ndo_tx_timeout = fst_tx_timeout, }; diff --git a/drivers/net/wan/hdlc_fr.c b/drivers/net/wan/hdlc_fr.c index 25e3564ce118..2910ea25e51d 100644 --- a/drivers/net/wan/hdlc_fr.c +++ b/drivers/net/wan/hdlc_fr.c @@ -362,6 +362,9 @@ static int pvc_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd) struct pvc_device *pvc = dev->ml_priv; fr_proto_pvc_info info; + if (cmd != SIOCWANDEV) + return -EOPNOTSUPP; + if (ifr->ifr_settings.type == IF_GET_PROTO) { if (dev->type == ARPHRD_ETHER) ifr->ifr_settings.type = IF_PROTO_FR_ETH_PVC; diff --git a/drivers/net/wan/lmc/lmc_main.c b/drivers/net/wan/lmc/lmc_main.c index 6c163db52835..26a4ffbff73b 100644 --- a/drivers/net/wan/lmc/lmc_main.c +++ b/drivers/net/wan/lmc/lmc_main.c @@ -105,7 +105,8 @@ static void lmc_driver_timeout(struct net_device *dev, unsigned int txqueue); * linux reserves 16 device specific IOCTLs. We call them * LMCIOC* to control various bits of our world. */ -int lmc_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd) /*fold00*/ +static int lmc_siocdevprivate(struct net_device *dev, struct ifreq *ifr, + void __user *data, int cmd) /*fold00*/ { lmc_softc_t *sc = dev_to_sc(dev); lmc_ctl_t ctl; @@ -124,7 +125,7 @@ int lmc_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd) /*fold00*/ * To date internally, just copy this out to the user. */ case LMCIOCGINFO: /*fold01*/ - if (copy_to_user(ifr->ifr_data, &sc->ictl, sizeof(lmc_ctl_t))) + if (copy_to_user(data, &sc->ictl, sizeof(lmc_ctl_t))) ret = -EFAULT; else ret = 0; @@ -141,7 +142,7 @@ int lmc_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd) /*fold00*/ break; } - if (copy_from_user(&ctl, ifr->ifr_data, sizeof(lmc_ctl_t))) { + if (copy_from_user(&ctl, data, sizeof(lmc_ctl_t))) { ret = -EFAULT; break; } @@ -171,7 +172,7 @@ int lmc_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd) /*fold00*/ break; } - if (copy_from_user(&new_type, ifr->ifr_data, sizeof(u16))) { + if (copy_from_user(&new_type, data, sizeof(u16))) { ret = -EFAULT; break; } @@ -211,8 +212,7 @@ int lmc_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd) /*fold00*/ sc->lmc_xinfo.Magic1 = 0xDEADBEEF; - if (copy_to_user(ifr->ifr_data, &sc->lmc_xinfo, - sizeof(struct lmc_xinfo))) + if (copy_to_user(data, &sc->lmc_xinfo, sizeof(struct lmc_xinfo))) ret = -EFAULT; else ret = 0; @@ -245,9 +245,9 @@ int lmc_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd) /*fold00*/ regVal & T1FRAMER_SEF_MASK; } spin_unlock_irqrestore(&sc->lmc_lock, flags); - if (copy_to_user(ifr->ifr_data, &sc->lmc_device->stats, + if (copy_to_user(data, &sc->lmc_device->stats, sizeof(sc->lmc_device->stats)) || - copy_to_user(ifr->ifr_data + sizeof(sc->lmc_device->stats), + copy_to_user(data + sizeof(sc->lmc_device->stats), &sc->extra_stats, sizeof(sc->extra_stats))) ret = -EFAULT; else @@ -282,7 +282,7 @@ int lmc_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd) /*fold00*/ break; } - if (copy_from_user(&ctl, ifr->ifr_data, sizeof(lmc_ctl_t))) { + if (copy_from_user(&ctl, data, sizeof(lmc_ctl_t))) { ret = -EFAULT; break; } @@ -314,11 +314,11 @@ int lmc_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd) /*fold00*/ #ifdef DEBUG case LMCIOCDUMPEVENTLOG: - if (copy_to_user(ifr->ifr_data, &lmcEventLogIndex, sizeof(u32))) { + if (copy_to_user(data, &lmcEventLogIndex, sizeof(u32))) { ret = -EFAULT; break; } - if (copy_to_user(ifr->ifr_data + sizeof(u32), lmcEventLogBuf, + if (copy_to_user(data + sizeof(u32), lmcEventLogBuf, sizeof(lmcEventLogBuf))) ret = -EFAULT; else @@ -346,7 +346,7 @@ int lmc_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd) /*fold00*/ */ netif_stop_queue(dev); - if (copy_from_user(&xc, ifr->ifr_data, sizeof(struct lmc_xilinx_control))) { + if (copy_from_user(&xc, data, sizeof(struct lmc_xilinx_control))) { ret = -EFAULT; break; } @@ -609,15 +609,21 @@ int lmc_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd) /*fold00*/ } break; - default: /*fold01*/ - /* If we don't know what to do, give the protocol a shot. */ - ret = lmc_proto_ioctl (sc, ifr, cmd); - break; + default: + break; } return ret; } +int lmc_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd) +{ + if (cmd != SIOCWANDEV) + return -EOPNOTSUPP; + + return lmc_proto_ioctl(dev_to_sc(dev), ifr, cmd); +} + /* the watchdog process that cruises around */ static void lmc_watchdog(struct timer_list *t) /*fold00*/ @@ -789,6 +795,7 @@ static const struct net_device_ops lmc_ops = { .ndo_stop = lmc_close, .ndo_start_xmit = hdlc_start_xmit, .ndo_do_ioctl = lmc_ioctl, + .ndo_siocdevprivate = lmc_siocdevprivate, .ndo_tx_timeout = lmc_driver_timeout, .ndo_get_stats = lmc_get_stats, }; diff --git a/drivers/net/wan/n2.c b/drivers/net/wan/n2.c index bdb6dc2409bc..4122ca2cd07d 100644 --- a/drivers/net/wan/n2.c +++ b/drivers/net/wan/n2.c @@ -227,19 +227,25 @@ static int n2_close(struct net_device *dev) return 0; } -static int n2_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd) +static int n2_siocdevprivate(struct net_device *dev, struct ifreq *ifr, + void __user *data, int cmd) { - const size_t size = sizeof(sync_serial_settings); - sync_serial_settings new_line; - sync_serial_settings __user *line = ifr->ifr_settings.ifs_ifsu.sync; - port_t *port = dev_to_port(dev); - #ifdef DEBUG_RINGS if (cmd == SIOCDEVPRIVATE) { sca_dump_rings(dev); return 0; } #endif + return -EOPNOTSUPP; +} + +static int n2_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd) +{ + const size_t size = sizeof(sync_serial_settings); + sync_serial_settings new_line; + sync_serial_settings __user *line = ifr->ifr_settings.ifs_ifsu.sync; + port_t *port = dev_to_port(dev); + if (cmd != SIOCWANDEV) return hdlc_ioctl(dev, ifr, cmd); @@ -312,6 +318,7 @@ static const struct net_device_ops n2_ops = { .ndo_stop = n2_close, .ndo_start_xmit = hdlc_start_xmit, .ndo_do_ioctl = n2_ioctl, + .ndo_siocdevprivate = n2_siocdevprivate, }; static int __init n2_run(unsigned long io, unsigned long irq, diff --git a/drivers/net/wan/pc300too.c b/drivers/net/wan/pc300too.c index 7b123a771aa6..8cdfd0056c81 100644 --- a/drivers/net/wan/pc300too.c +++ b/drivers/net/wan/pc300too.c @@ -174,6 +174,18 @@ static int pc300_close(struct net_device *dev) return 0; } +static int pc300_siocdevprivate(struct net_device *dev, struct ifreq *ifr, + void __user *data, int cmd) +{ +#ifdef DEBUG_RINGS + if (cmd == SIOCDEVPRIVATE) { + sca_dump_rings(dev); + return 0; + } +#endif + return -EOPNOTSUPP; +} + static int pc300_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd) { const size_t size = sizeof(sync_serial_settings); @@ -182,12 +194,6 @@ static int pc300_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd) int new_type; port_t *port = dev_to_port(dev); -#ifdef DEBUG_RINGS - if (cmd == SIOCDEVPRIVATE) { - sca_dump_rings(dev); - return 0; - } -#endif if (cmd != SIOCWANDEV) return hdlc_ioctl(dev, ifr, cmd); @@ -273,6 +279,7 @@ static const struct net_device_ops pc300_ops = { .ndo_stop = pc300_close, .ndo_start_xmit = hdlc_start_xmit, .ndo_do_ioctl = pc300_ioctl, + .ndo_siocdevprivate = pc300_siocdevprivate, }; static int pc300_pci_init_one(struct pci_dev *pdev, diff --git a/drivers/net/wan/pci200syn.c b/drivers/net/wan/pci200syn.c index dee9c4e15eca..f4dc3dda25b7 100644 --- a/drivers/net/wan/pci200syn.c +++ b/drivers/net/wan/pci200syn.c @@ -167,19 +167,25 @@ static int pci200_close(struct net_device *dev) return 0; } -static int pci200_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd) +static int pci200_siocdevprivate(struct net_device *dev, struct ifreq *ifr, + void __user *data, int cmd) { - const size_t size = sizeof(sync_serial_settings); - sync_serial_settings new_line; - sync_serial_settings __user *line = ifr->ifr_settings.ifs_ifsu.sync; - port_t *port = dev_to_port(dev); - #ifdef DEBUG_RINGS if (cmd == SIOCDEVPRIVATE) { sca_dump_rings(dev); return 0; } #endif + return -EOPNOTSUPP; +} + +static int pci200_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd) +{ + const size_t size = sizeof(sync_serial_settings); + sync_serial_settings new_line; + sync_serial_settings __user *line = ifr->ifr_settings.ifs_ifsu.sync; + port_t *port = dev_to_port(dev); + if (cmd != SIOCWANDEV) return hdlc_ioctl(dev, ifr, cmd); @@ -254,6 +260,7 @@ static const struct net_device_ops pci200_ops = { .ndo_stop = pci200_close, .ndo_start_xmit = hdlc_start_xmit, .ndo_do_ioctl = pci200_ioctl, + .ndo_siocdevprivate = pci200_siocdevprivate, }; static int pci200_pci_init_one(struct pci_dev *pdev, diff --git a/drivers/net/wan/sbni.c b/drivers/net/wan/sbni.c index 3092a09d3eaa..469fe979d664 100644 --- a/drivers/net/wan/sbni.c +++ b/drivers/net/wan/sbni.c @@ -119,7 +119,8 @@ static int sbni_open( struct net_device * ); static int sbni_close( struct net_device * ); static netdev_tx_t sbni_start_xmit(struct sk_buff *, struct net_device * ); -static int sbni_ioctl( struct net_device *, struct ifreq *, int ); +static int sbni_siocdevprivate(struct net_device *, struct ifreq *, + void __user *, int); static void set_multicast_list( struct net_device * ); static irqreturn_t sbni_interrupt( int, void * ); @@ -211,7 +212,7 @@ static const struct net_device_ops sbni_netdev_ops = { .ndo_stop = sbni_close, .ndo_start_xmit = sbni_start_xmit, .ndo_set_rx_mode = set_multicast_list, - .ndo_do_ioctl = sbni_ioctl, + .ndo_siocdevprivate = sbni_siocdevprivate, .ndo_set_mac_address = eth_mac_addr, .ndo_validate_addr = eth_validate_addr, }; @@ -1297,7 +1298,7 @@ sbni_card_probe( unsigned long ioaddr ) /* -------------------------------------------------------------------------- */ static int -sbni_ioctl( struct net_device *dev, struct ifreq *ifr, int cmd ) +sbni_siocdevprivate(struct net_device *dev, struct ifreq *ifr, void __user *data, int cmd) { struct net_local *nl = netdev_priv(dev); struct sbni_flags flags; @@ -1310,8 +1311,8 @@ sbni_ioctl( struct net_device *dev, struct ifreq *ifr, int cmd ) switch( cmd ) { case SIOCDEVGETINSTATS : - if (copy_to_user( ifr->ifr_data, &nl->in_stats, - sizeof(struct sbni_in_stats) )) + if (copy_to_user(data, &nl->in_stats, + sizeof(struct sbni_in_stats))) error = -EFAULT; break; @@ -1328,7 +1329,7 @@ sbni_ioctl( struct net_device *dev, struct ifreq *ifr, int cmd ) flags.rxl = nl->cur_rxl_index; flags.fixed_rxl = nl->delta_rxl == 0; - if (copy_to_user( ifr->ifr_data, &flags, sizeof flags )) + if (copy_to_user(data, &flags, sizeof(flags))) error = -EFAULT; break; @@ -1358,7 +1359,7 @@ sbni_ioctl( struct net_device *dev, struct ifreq *ifr, int cmd ) if (!capable(CAP_NET_ADMIN)) return -EPERM; - if (copy_from_user( slave_name, ifr->ifr_data, sizeof slave_name )) + if (copy_from_user(slave_name, data, sizeof(slave_name))) return -EFAULT; slave_dev = dev_get_by_name(&init_net, slave_name ); if( !slave_dev || !(slave_dev->flags & IFF_UP) ) {

[net-next,v3,24/31] wan: use ndo_siocdevprivate

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