diff options
| author | Arnd Bergmann <arnd@arndb.de> | 2021-07-27 15:44:58 +0200 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2021-07-27 20:11:43 +0100 |
| commit | d92f7b59d32bfeace7315b416f5244dd5c3935fa (patch) | |
| tree | ba1074697234ceeb2c984748526c0b8d60bfc4c6 | |
| parent | 32d05468c46267db1c0128057d4fcf80332fecf8 (diff) | |
eql: use ndo_siocdevprivate
The private ioctls in eql pass the arguments correctly through ifr_data,
but the slaving_request_t and slave_config_t structures are incompatible
with compat mode and need special conversion code in the driver.
Convert to siocdevprivate for now, and return an error when called
in compat mode.
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
| -rw-r--r-- | drivers/net/eql.c | 24 |
1 files changed, 15 insertions, 9 deletions
diff --git a/drivers/net/eql.c b/drivers/net/eql.c index 74263f8efe1a..8ef34901c2d8 100644 --- a/drivers/net/eql.c +++ b/drivers/net/eql.c @@ -113,6 +113,7 @@ #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt +#include <linux/compat.h> #include <linux/capability.h> #include <linux/module.h> #include <linux/kernel.h> @@ -131,7 +132,8 @@ static int eql_open(struct net_device *dev); static int eql_close(struct net_device *dev); -static int eql_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd); +static int eql_siocdevprivate(struct net_device *dev, struct ifreq *ifr, + void __user *data, int cmd); static netdev_tx_t eql_slave_xmit(struct sk_buff *skb, struct net_device *dev); #define eql_is_slave(dev) ((dev->flags & IFF_SLAVE) == IFF_SLAVE) @@ -170,7 +172,7 @@ static const char version[] __initconst = static const struct net_device_ops eql_netdev_ops = { .ndo_open = eql_open, .ndo_stop = eql_close, - .ndo_do_ioctl = eql_ioctl, + .ndo_siocdevprivate = eql_siocdevprivate, .ndo_start_xmit = eql_slave_xmit, }; @@ -268,25 +270,29 @@ static int eql_s_slave_cfg(struct net_device *dev, slave_config_t __user *sc); static int eql_g_master_cfg(struct net_device *dev, master_config_t __user *mc); static int eql_s_master_cfg(struct net_device *dev, master_config_t __user *mc); -static int eql_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd) +static int eql_siocdevprivate(struct net_device *dev, struct ifreq *ifr, + void __user *data, int cmd) { if (cmd != EQL_GETMASTRCFG && cmd != EQL_GETSLAVECFG && !capable(CAP_NET_ADMIN)) return -EPERM; + if (in_compat_syscall()) /* to be implemented */ + return -EOPNOTSUPP; + switch (cmd) { case EQL_ENSLAVE: - return eql_enslave(dev, ifr->ifr_data); + return eql_enslave(dev, data); case EQL_EMANCIPATE: - return eql_emancipate(dev, ifr->ifr_data); + return eql_emancipate(dev, data); case EQL_GETSLAVECFG: - return eql_g_slave_cfg(dev, ifr->ifr_data); + return eql_g_slave_cfg(dev, data); case EQL_SETSLAVECFG: - return eql_s_slave_cfg(dev, ifr->ifr_data); + return eql_s_slave_cfg(dev, data); case EQL_GETMASTRCFG: - return eql_g_master_cfg(dev, ifr->ifr_data); + return eql_g_master_cfg(dev, data); case EQL_SETMASTRCFG: - return eql_s_master_cfg(dev, ifr->ifr_data); + return eql_s_master_cfg(dev, data); default: return -EOPNOTSUPP; } |