Quelle dev_ioctl.c Sprache: unbekannt
// SPDX-License-Identifier: GPL-2.0
#include <linux/kmod.h>
#include <linux/netdevice.h>
#include <linux/inetdevice.h>
#include <linux/etherdevice.h>
#include <linux/rtnetlink.h>
#include <linux/net_tstamp.h>
#include <linux/phylib_stubs.h>
#include <linux/ptp_clock_kernel.h>
#include <linux/wireless.h>
#include <linux/if_bridge.h>
#include <net/dsa_stubs.h>
#include <net/netdev_lock.h>
#include <net/wext.h>
#include "dev.h"
/*
* Map an interface index to its name ( SIOCGIFNAME )
*/
/*
* We need this ioctl for efficient implementation of the
* if_indextoname ( ) function required by the IPv6 API . Without
* it , we would have to search all the interfaces to find a
* match . - - pb
*/
static int dev_ifname(struct net *net, struct ifreq *ifr)
{
ifr->ifr_name[IFNAMSIZ-1 ] = 0 ;
return netdev_get_name(net, ifr->ifr_name, ifr->ifr_ifindex);
}
/*
* Perform a SIOCGIFCONF call . This structure will change
* size eventually , and there is nothing I can do about it .
* Thus we will need a ' compatibility mode ' .
*/
int dev_ifconf(struct net *net, struct ifconf __user *uifc)
{
struct net_device *dev;
void __user *pos;
size_t size;
int len, total = 0 , done;
/* both the ifconf and the ifreq structures are slightly different */
if (in_compat_syscall()) {
struct compat_ifconf ifc32;
if (copy_from_user(&ifc32, uifc, sizeof (struct compat_ifconf)))
return -EFAULT;
pos = compat_ptr(ifc32.ifcbuf);
len = ifc32.ifc_len;
size = sizeof (struct compat_ifreq);
} else {
struct ifconf ifc;
if (copy_from_user(&ifc, uifc, sizeof (struct ifconf)))
return -EFAULT;
pos = ifc.ifc_buf;
len = ifc.ifc_len;
size = sizeof (struct ifreq);
}
/* Loop over the interfaces, and write an info block for each. */
rtnl_net_lock(net);
for_each_netdev(net, dev) {
if (!pos)
done = inet_gifconf(dev, NULL, 0 , size);
else
done = inet_gifconf(dev, pos + total,
len - total, size);
if (done < 0 ) {
rtnl_net_unlock(net);
return -EFAULT;
}
total += done;
}
rtnl_net_unlock(net);
return put_user(total, &uifc->ifc_len);
}
static int dev_getifmap(struct net_device *dev, struct ifreq *ifr)
{
struct ifmap *ifmap = &ifr->ifr_map;
if (in_compat_syscall()) {
struct compat_ifmap *cifmap = (struct compat_ifmap *)ifmap;
cifmap->mem_start = dev->mem_start;
cifmap->mem_end = dev->mem_end;
cifmap->base_addr = dev->base_addr;
cifmap->irq = dev->irq;
cifmap->dma = dev->dma;
cifmap->port = dev->if_port;
return 0 ;
}
ifmap->mem_start = dev->mem_start;
ifmap->mem_end = dev->mem_end;
ifmap->base_addr = dev->base_addr;
ifmap->irq = dev->irq;
ifmap->dma = dev->dma;
ifmap->port = dev->if_port;
return 0 ;
}
static int netif_setifmap(struct net_device *dev, struct ifreq *ifr)
{
struct compat_ifmap *cifmap = (struct compat_ifmap *)&ifr->ifr_map;
if (!dev->netdev_ops->ndo_set_config)
return -EOPNOTSUPP;
if (in_compat_syscall()) {
struct ifmap ifmap = {
.mem_start = cifmap->mem_start,
.mem_end = cifmap->mem_end,
.base_addr = cifmap->base_addr,
.irq = cifmap->irq,
.dma = cifmap->dma,
.port = cifmap->port,
};
return dev->netdev_ops->ndo_set_config(dev, &ifmap);
}
return dev->netdev_ops->ndo_set_config(dev, &ifr->ifr_map);
}
/*
* Perform the SIOCxIFxxx calls , inside rcu_read_lock ( )
*/
static int dev_ifsioc_locked(struct net *net, struct ifreq *ifr, unsigned int cmd)
{
int err;
struct net_device *dev = dev_get_by_name_rcu(net, ifr->ifr_name);
if (!dev)
return -ENODEV;
switch (cmd) {
case SIOCGIFFLAGS: /* Get interface flags */
ifr->ifr_flags = (short )netif_get_flags(dev);
return 0 ;
case SIOCGIFMETRIC: /* Get the metric on the interface
(currently unused) */
ifr->ifr_metric = 0 ;
return 0 ;
case SIOCGIFMTU: /* Get the MTU of a device */
ifr->ifr_mtu = dev->mtu;
return 0 ;
case SIOCGIFSLAVE:
err = -EINVAL;
break ;
case SIOCGIFMAP:
return dev_getifmap(dev, ifr);
case SIOCGIFINDEX:
ifr->ifr_ifindex = dev->ifindex;
return 0 ;
case SIOCGIFTXQLEN:
ifr->ifr_qlen = dev->tx_queue_len;
return 0 ;
default :
/* dev_ioctl() should ensure this case
* is never reached
*/
WARN_ON(1 );
err = -ENOTTY;
break ;
}
return err;
}
int net_hwtstamp_validate(const struct kernel_hwtstamp_config *cfg)
{
enum hwtstamp_tx_types tx_type;
enum hwtstamp_rx_filters rx_filter;
int tx_type_valid = 0 ;
int rx_filter_valid = 0 ;
if (cfg->flags & ~HWTSTAMP_FLAG_MASK)
return -EINVAL;
tx_type = cfg->tx_type;
rx_filter = cfg->rx_filter;
switch (tx_type) {
case HWTSTAMP_TX_OFF:
case HWTSTAMP_TX_ON:
case HWTSTAMP_TX_ONESTEP_SYNC:
case HWTSTAMP_TX_ONESTEP_P2P:
tx_type_valid = 1 ;
break ;
case __HWTSTAMP_TX_CNT:
/* not a real value */
break ;
}
switch (rx_filter) {
case HWTSTAMP_FILTER_NONE:
case HWTSTAMP_FILTER_ALL:
case HWTSTAMP_FILTER_SOME:
case HWTSTAMP_FILTER_PTP_V1_L4_EVENT:
case HWTSTAMP_FILTER_PTP_V1_L4_SYNC:
case HWTSTAMP_FILTER_PTP_V1_L4_DELAY_REQ:
case HWTSTAMP_FILTER_PTP_V2_L4_EVENT:
case HWTSTAMP_FILTER_PTP_V2_L4_SYNC:
case HWTSTAMP_FILTER_PTP_V2_L4_DELAY_REQ:
case HWTSTAMP_FILTER_PTP_V2_L2_EVENT:
case HWTSTAMP_FILTER_PTP_V2_L2_SYNC:
case HWTSTAMP_FILTER_PTP_V2_L2_DELAY_REQ:
case HWTSTAMP_FILTER_PTP_V2_EVENT:
case HWTSTAMP_FILTER_PTP_V2_SYNC:
case HWTSTAMP_FILTER_PTP_V2_DELAY_REQ:
case HWTSTAMP_FILTER_NTP_ALL:
rx_filter_valid = 1 ;
break ;
case __HWTSTAMP_FILTER_CNT:
/* not a real value */
break ;
}
if (!tx_type_valid || !rx_filter_valid)
return -ERANGE;
return 0 ;
}
/**
* dev_get_hwtstamp_phylib ( ) - Get hardware timestamping settings of NIC
* or of attached phylib PHY
* @ dev : Network device
* @ cfg : Timestamping configuration structure
*
* Helper for calling the default hardware provider timestamping .
*
* Note : phy_mii_ioctl ( ) only handles SIOCSHWTSTAMP ( not SIOCGHWTSTAMP ) , and
* there only exists a phydev - > mii_ts - > hwtstamp ( ) method . So this will return
* - EOPNOTSUPP for phylib for now , which is still more accurate than letting
* the netdev handle the GET request .
*/
int dev_get_hwtstamp_phylib(struct net_device *dev,
struct kernel_hwtstamp_config *cfg)
{
struct hwtstamp_provider *hwprov;
hwprov = rtnl_dereference(dev->hwprov);
if (hwprov) {
cfg->qualifier = hwprov->desc.qualifier;
if (hwprov->source == HWTSTAMP_SOURCE_PHYLIB &&
hwprov->phydev)
return phy_hwtstamp_get(hwprov->phydev, cfg);
if (hwprov->source == HWTSTAMP_SOURCE_NETDEV)
return dev->netdev_ops->ndo_hwtstamp_get(dev, cfg);
return -EOPNOTSUPP;
}
if (phy_is_default_hwtstamp(dev->phydev))
return phy_hwtstamp_get(dev->phydev, cfg);
return dev->netdev_ops->ndo_hwtstamp_get(dev, cfg);
}
static int dev_get_hwtstamp(struct net_device *dev, struct ifreq *ifr)
{
const struct net_device_ops *ops = dev->netdev_ops;
struct kernel_hwtstamp_config kernel_cfg = {};
struct hwtstamp_config cfg;
int err;
if (!ops->ndo_hwtstamp_get)
return dev_eth_ioctl(dev, ifr, SIOCGHWTSTAMP); /* legacy */
if (!netif_device_present(dev))
return -ENODEV;
kernel_cfg.ifr = ifr;
netdev_lock_ops(dev);
err = dev_get_hwtstamp_phylib(dev, &kernel_cfg);
netdev_unlock_ops(dev);
if (err)
return err;
/* If the request was resolved through an unconverted driver, omit
* the copy_to_user ( ) , since the implementation has already done that
*/
if (!kernel_cfg.copied_to_user) {
hwtstamp_config_from_kernel(&cfg, &kernel_cfg);
if (copy_to_user(ifr->ifr_data, &cfg, sizeof (cfg)))
return -EFAULT;
}
return 0 ;
}
/**
* dev_set_hwtstamp_phylib ( ) - Change hardware timestamping of NIC
* or of attached phylib PHY
* @ dev : Network device
* @ cfg : Timestamping configuration structure
* @ extack : Netlink extended ack message structure , for error reporting
*
* Helper for enforcing a common policy that phylib timestamping , if available ,
* should take precedence in front of hardware timestamping provided by the
* netdev . If the netdev driver needs to perform specific actions even for PHY
* timestamping to work properly ( a switch port must trap the timestamped
* frames and not forward them ) , it must set dev - > see_all_hwtstamp_requests .
*/
int dev_set_hwtstamp_phylib(struct net_device *dev,
struct kernel_hwtstamp_config *cfg,
struct netlink_ext_ack *extack)
{
const struct net_device_ops *ops = dev->netdev_ops;
struct kernel_hwtstamp_config old_cfg = {};
struct hwtstamp_provider *hwprov;
struct phy_device *phydev;
bool changed = false ;
bool phy_ts;
int err;
hwprov = rtnl_dereference(dev->hwprov);
if (hwprov) {
if (hwprov->source == HWTSTAMP_SOURCE_PHYLIB &&
hwprov->phydev) {
phy_ts = true ;
phydev = hwprov->phydev;
} else if (hwprov->source == HWTSTAMP_SOURCE_NETDEV) {
phy_ts = false ;
} else {
return -EOPNOTSUPP;
}
cfg->qualifier = hwprov->desc.qualifier;
} else {
phy_ts = phy_is_default_hwtstamp(dev->phydev);
if (phy_ts)
phydev = dev->phydev;
}
cfg->source = phy_ts ? HWTSTAMP_SOURCE_PHYLIB : HWTSTAMP_SOURCE_NETDEV;
if (phy_ts && dev->see_all_hwtstamp_requests) {
err = ops->ndo_hwtstamp_get(dev, &old_cfg);
if (err)
return err;
}
if (!phy_ts || dev->see_all_hwtstamp_requests) {
err = ops->ndo_hwtstamp_set(dev, cfg, extack);
if (err) {
if (extack->_msg)
netdev_err(dev, "%s\n" , extack->_msg);
return err;
}
}
if (phy_ts && dev->see_all_hwtstamp_requests)
changed = kernel_hwtstamp_config_changed(&old_cfg, cfg);
if (phy_ts) {
err = phy_hwtstamp_set(phydev, cfg, extack);
if (err) {
if (changed)
ops->ndo_hwtstamp_set(dev, &old_cfg, NULL);
return err;
}
}
return 0 ;
}
static int dev_set_hwtstamp(struct net_device *dev, struct ifreq *ifr)
{
const struct net_device_ops *ops = dev->netdev_ops;
struct kernel_hwtstamp_config kernel_cfg = {};
struct netlink_ext_ack extack = {};
struct hwtstamp_config cfg;
int err;
if (copy_from_user(&cfg, ifr->ifr_data, sizeof (cfg)))
return -EFAULT;
hwtstamp_config_to_kernel(&kernel_cfg, &cfg);
kernel_cfg.ifr = ifr;
err = net_hwtstamp_validate(&kernel_cfg);
if (err)
return err;
err = dsa_conduit_hwtstamp_validate(dev, &kernel_cfg, &extack);
if (err) {
if (extack._msg)
netdev_err(dev, "%s\n" , extack._msg);
return err;
}
if (!ops->ndo_hwtstamp_set)
return dev_eth_ioctl(dev, ifr, SIOCSHWTSTAMP); /* legacy */
if (!netif_device_present(dev))
return -ENODEV;
netdev_lock_ops(dev);
err = dev_set_hwtstamp_phylib(dev, &kernel_cfg, &extack);
netdev_unlock_ops(dev);
if (err)
return err;
/* The driver may have modified the configuration, so copy the
* updated version of it back to user space
*/
if (!kernel_cfg.copied_to_user) {
hwtstamp_config_from_kernel(&cfg, &kernel_cfg);
if (copy_to_user(ifr->ifr_data, &cfg, sizeof (cfg)))
return -EFAULT;
}
return 0 ;
}
static int generic_hwtstamp_ioctl_lower(struct net_device *dev, int cmd,
struct kernel_hwtstamp_config *kernel_cfg)
{
struct ifreq ifrr;
int err;
strscpy_pad(ifrr.ifr_name, dev->name, IFNAMSIZ);
ifrr.ifr_ifru = kernel_cfg->ifr->ifr_ifru;
err = dev_eth_ioctl(dev, &ifrr, cmd);
if (err)
return err;
kernel_cfg->ifr->ifr_ifru = ifrr.ifr_ifru;
kernel_cfg->copied_to_user = true ;
return 0 ;
}
int generic_hwtstamp_get_lower(struct net_device *dev,
struct kernel_hwtstamp_config *kernel_cfg)
{
const struct net_device_ops *ops = dev->netdev_ops;
if (!netif_device_present(dev))
return -ENODEV;
if (ops->ndo_hwtstamp_get) {
int err;
netdev_lock_ops(dev);
err = dev_get_hwtstamp_phylib(dev, kernel_cfg);
netdev_unlock_ops(dev);
return err;
}
/* Legacy path: unconverted lower driver */
return generic_hwtstamp_ioctl_lower(dev, SIOCGHWTSTAMP, kernel_cfg);
}
EXPORT_SYMBOL(generic_hwtstamp_get_lower);
int generic_hwtstamp_set_lower(struct net_device *dev,
struct kernel_hwtstamp_config *kernel_cfg,
struct netlink_ext_ack *extack)
{
const struct net_device_ops *ops = dev->netdev_ops;
if (!netif_device_present(dev))
return -ENODEV;
if (ops->ndo_hwtstamp_set) {
int err;
netdev_lock_ops(dev);
err = dev_set_hwtstamp_phylib(dev, kernel_cfg, extack);
netdev_unlock_ops(dev);
return err;
}
/* Legacy path: unconverted lower driver */
return generic_hwtstamp_ioctl_lower(dev, SIOCSHWTSTAMP, kernel_cfg);
}
EXPORT_SYMBOL(generic_hwtstamp_set_lower);
static int dev_siocbond(struct net_device *dev,
struct ifreq *ifr, unsigned int cmd)
{
const struct net_device_ops *ops = dev->netdev_ops;
if (ops->ndo_siocbond) {
int ret = -ENODEV;
netdev_lock_ops(dev);
if (netif_device_present(dev))
ret = ops->ndo_siocbond(dev, ifr, cmd);
netdev_unlock_ops(dev);
return ret;
}
return -EOPNOTSUPP;
}
static int dev_siocdevprivate(struct net_device *dev, struct ifreq *ifr,
void __user *data, unsigned int cmd)
{
const struct net_device_ops *ops = dev->netdev_ops;
if (ops->ndo_siocdevprivate) {
int ret = -ENODEV;
netdev_lock_ops(dev);
if (netif_device_present(dev))
ret = ops->ndo_siocdevprivate(dev, ifr, data, cmd);
netdev_unlock_ops(dev);
return ret;
}
return -EOPNOTSUPP;
}
static int dev_siocwandev(struct net_device *dev, struct if_settings *ifs)
{
const struct net_device_ops *ops = dev->netdev_ops;
if (ops->ndo_siocwandev) {
int ret = -ENODEV;
netdev_lock_ops(dev);
if (netif_device_present(dev))
ret = ops->ndo_siocwandev(dev, ifs);
netdev_unlock_ops(dev);
return ret;
}
return -EOPNOTSUPP;
}
/*
* Perform the SIOCxIFxxx calls , inside rtnl_net_lock ( )
*/
static int dev_ifsioc(struct net *net, struct ifreq *ifr, void __user *data,
unsigned int cmd)
{
int err;
struct net_device *dev = __dev_get_by_name(net, ifr->ifr_name);
const struct net_device_ops *ops;
if (!dev)
return -ENODEV;
ops = dev->netdev_ops;
switch (cmd) {
case SIOCSIFFLAGS: /* Set interface flags */
return dev_change_flags(dev, ifr->ifr_flags, NULL);
case SIOCSIFMETRIC: /* Set the metric on the interface
(currently unused) */
return -EOPNOTSUPP;
case SIOCSIFMTU: /* Set the MTU of a device */
return dev_set_mtu(dev, ifr->ifr_mtu);
case SIOCSIFHWADDR:
if (dev->addr_len > sizeof (ifr->ifr_hwaddr))
return -EINVAL;
return dev_set_mac_address_user(dev,
(struct sockaddr_storage *)&ifr->ifr_hwaddr,
NULL);
case SIOCSIFHWBROADCAST:
if (ifr->ifr_hwaddr.sa_family != dev->type)
return -EINVAL;
memcpy(dev->broadcast, ifr->ifr_hwaddr.sa_data,
min(sizeof (ifr->ifr_hwaddr.sa_data_min),
(size_t)dev->addr_len));
netdev_lock_ops(dev);
call_netdevice_notifiers(NETDEV_CHANGEADDR, dev);
netdev_unlock_ops(dev);
return 0 ;
case SIOCSIFMAP:
netdev_lock_ops(dev);
err = netif_setifmap(dev, ifr);
netdev_unlock_ops(dev);
return err;
case SIOCADDMULTI:
if (!ops->ndo_set_rx_mode ||
ifr->ifr_hwaddr.sa_family != AF_UNSPEC)
return -EINVAL;
if (!netif_device_present(dev))
return -ENODEV;
netdev_lock_ops(dev);
err = dev_mc_add_global(dev, ifr->ifr_hwaddr.sa_data);
netdev_unlock_ops(dev);
return err;
case SIOCDELMULTI:
if (!ops->ndo_set_rx_mode ||
ifr->ifr_hwaddr.sa_family != AF_UNSPEC)
return -EINVAL;
if (!netif_device_present(dev))
return -ENODEV;
netdev_lock_ops(dev);
err = dev_mc_del_global(dev, ifr->ifr_hwaddr.sa_data);
netdev_unlock_ops(dev);
return err;
case SIOCSIFTXQLEN:
if (ifr->ifr_qlen < 0 )
return -EINVAL;
return dev_change_tx_queue_len(dev, ifr->ifr_qlen);
case SIOCSIFNAME:
ifr->ifr_newname[IFNAMSIZ-1 ] = '\0' ;
return dev_change_name(dev, ifr->ifr_newname);
case SIOCWANDEV:
return dev_siocwandev(dev, &ifr->ifr_settings);
case SIOCDEVPRIVATE ... SIOCDEVPRIVATE + 15 :
return dev_siocdevprivate(dev, ifr, data, cmd);
case SIOCSHWTSTAMP:
return dev_set_hwtstamp(dev, ifr);
case SIOCGHWTSTAMP:
return dev_get_hwtstamp(dev, ifr);
case SIOCGMIIPHY:
case SIOCGMIIREG:
case SIOCSMIIREG:
return dev_eth_ioctl(dev, ifr, cmd);
case SIOCBONDENSLAVE:
case SIOCBONDRELEASE:
case SIOCBONDSETHWADDR:
case SIOCBONDSLAVEINFOQUERY:
case SIOCBONDINFOQUERY:
case SIOCBONDCHANGEACTIVE:
return dev_siocbond(dev, ifr, cmd);
/* Unknown ioctl */
default :
err = -EINVAL;
}
return err;
}
/**
* dev_load - load a network module
* @ net : the applicable net namespace
* @ name : name of interface
*
* If a network interface is not present and the process has suitable
* privileges this function loads the module . If module loading is not
* available in this kernel then it becomes a nop .
*/
void dev_load(struct net *net, const char *name)
{
struct net_device *dev;
int no_module;
rcu_read_lock();
dev = dev_get_by_name_rcu(net, name);
rcu_read_unlock();
no_module = !dev;
if (no_module && capable(CAP_NET_ADMIN))
no_module = request_module("netdev-%s" , name);
if (no_module && capable(CAP_SYS_MODULE))
request_module("%s" , name);
}
EXPORT_SYMBOL(dev_load);
/*
* This function handles all " interface " - type I / O control requests . The actual
* ' doing ' part of this is dev_ifsioc above .
*/
/**
* dev_ioctl - network device ioctl
* @ net : the applicable net namespace
* @ cmd : command to issue
* @ ifr : pointer to a struct ifreq in user space
* @ data : data exchanged with userspace
* @ need_copyout : whether or not copy_to_user ( ) should be called
*
* Issue ioctl functions to devices . This is normally called by the
* user space syscall interfaces but can sometimes be useful for
* other purposes . The return value is the return from the syscall if
* positive or a negative errno code on error .
*/
int dev_ioctl(struct net *net, unsigned int cmd, struct ifreq *ifr,
void __user *data, bool *need_copyout)
{
int ret;
char *colon;
if (need_copyout)
*need_copyout = true ;
if (cmd == SIOCGIFNAME)
return dev_ifname(net, ifr);
ifr->ifr_name[IFNAMSIZ-1 ] = 0 ;
colon = strchr(ifr->ifr_name, ':' );
if (colon)
*colon = 0 ;
/*
* See which interface the caller is talking about .
*/
switch (cmd) {
case SIOCGIFHWADDR:
dev_load(net, ifr->ifr_name);
ret = netif_get_mac_address(&ifr->ifr_hwaddr, net,
ifr->ifr_name);
if (colon)
*colon = ':' ;
return ret;
/*
* These ioctl calls :
* - can be done by all .
* - atomic and do not require locking .
* - return a value
*/
case SIOCGIFFLAGS:
case SIOCGIFMETRIC:
case SIOCGIFMTU:
case SIOCGIFSLAVE:
case SIOCGIFMAP:
case SIOCGIFINDEX:
case SIOCGIFTXQLEN:
dev_load(net, ifr->ifr_name);
rcu_read_lock();
ret = dev_ifsioc_locked(net, ifr, cmd);
rcu_read_unlock();
if (colon)
*colon = ':' ;
return ret;
case SIOCETHTOOL:
dev_load(net, ifr->ifr_name);
ret = dev_ethtool(net, ifr, data);
if (colon)
*colon = ':' ;
return ret;
/*
* These ioctl calls :
* - require superuser power .
* - require strict serialization .
* - return a value
*/
case SIOCGMIIPHY:
case SIOCGMIIREG:
case SIOCSIFNAME:
dev_load(net, ifr->ifr_name);
if (!ns_capable(net->user_ns, CAP_NET_ADMIN))
return -EPERM;
rtnl_net_lock(net);
ret = dev_ifsioc(net, ifr, data, cmd);
rtnl_net_unlock(net);
if (colon)
*colon = ':' ;
return ret;
/*
* These ioctl calls :
* - require superuser power .
* - require strict serialization .
* - do not return a value
*/
case SIOCSIFMAP:
case SIOCSIFTXQLEN:
if (!capable(CAP_NET_ADMIN))
return -EPERM;
fallthrough;
/*
* These ioctl calls :
* - require local superuser power .
* - require strict serialization .
* - do not return a value
*/
case SIOCSIFFLAGS:
case SIOCSIFMETRIC:
case SIOCSIFMTU:
case SIOCSIFHWADDR:
case SIOCSIFSLAVE:
case SIOCADDMULTI:
case SIOCDELMULTI:
case SIOCSIFHWBROADCAST:
case SIOCSMIIREG:
case SIOCBONDENSLAVE:
case SIOCBONDRELEASE:
case SIOCBONDSETHWADDR:
case SIOCBONDCHANGEACTIVE:
case SIOCSHWTSTAMP:
if (!ns_capable(net->user_ns, CAP_NET_ADMIN))
return -EPERM;
fallthrough;
case SIOCBONDSLAVEINFOQUERY:
case SIOCBONDINFOQUERY:
dev_load(net, ifr->ifr_name);
rtnl_net_lock(net);
ret = dev_ifsioc(net, ifr, data, cmd);
rtnl_net_unlock(net);
if (need_copyout)
*need_copyout = false ;
return ret;
case SIOCGIFMEM:
/* Get the per device memory space. We can add this but
* currently do not support it */
case SIOCSIFMEM:
/* Set the per device memory buffer space.
* Not applicable in our case */
case SIOCSIFLINK:
return -ENOTTY;
/*
* Unknown or private ioctl .
*/
default :
if (cmd == SIOCWANDEV ||
cmd == SIOCGHWTSTAMP ||
(cmd >= SIOCDEVPRIVATE &&
cmd <= SIOCDEVPRIVATE + 15 )) {
dev_load(net, ifr->ifr_name);
rtnl_net_lock(net);
ret = dev_ifsioc(net, ifr, data, cmd);
rtnl_net_unlock(net);
return ret;
}
return -ENOTTY;
}
}
Messung V0.5 in Prozent C=96 H=97 G=96
[Verzeichnis aufwärts0.20unsichere VerbindungÜbersetzung europäischer Sprachen durch Browser2026-10-11]
2026-10-11