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path: root/drivers/net/wan/farsync.c
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Diffstat (limited to 'drivers/net/wan/farsync.c')
-rw-r--r--drivers/net/wan/farsync.c123
1 files changed, 67 insertions, 56 deletions
diff --git a/drivers/net/wan/farsync.c b/drivers/net/wan/farsync.c
index b3466e084e84..6a212c085435 100644
--- a/drivers/net/wan/farsync.c
+++ b/drivers/net/wan/farsync.c
@@ -1784,16 +1784,15 @@ gather_conf_info(struct fst_card_info *card, struct fst_port_info *port,
static int
fst_set_iface(struct fst_card_info *card, struct fst_port_info *port,
- struct ifreq *ifr)
+ struct if_settings *ifs)
{
sync_serial_settings sync;
int i;
- if (ifr->ifr_settings.size != sizeof(sync))
+ if (ifs->size != sizeof(sync))
return -ENOMEM;
- if (copy_from_user
- (&sync, ifr->ifr_settings.ifs_ifsu.sync, sizeof(sync)))
+ if (copy_from_user(&sync, ifs->ifs_ifsu.sync, sizeof(sync)))
return -EFAULT;
if (sync.loopback)
@@ -1801,7 +1800,7 @@ fst_set_iface(struct fst_card_info *card, struct fst_port_info *port,
i = port->index;
- switch (ifr->ifr_settings.type) {
+ switch (ifs->type) {
case IF_IFACE_V35:
FST_WRW(card, portConfig[i].lineInterface, V35);
port->hwif = V35;
@@ -1857,7 +1856,7 @@ fst_set_iface(struct fst_card_info *card, struct fst_port_info *port,
static int
fst_get_iface(struct fst_card_info *card, struct fst_port_info *port,
- struct ifreq *ifr)
+ struct if_settings *ifs)
{
sync_serial_settings sync;
int i;
@@ -1868,29 +1867,29 @@ fst_get_iface(struct fst_card_info *card, struct fst_port_info *port,
*/
switch (port->hwif) {
case E1:
- ifr->ifr_settings.type = IF_IFACE_E1;
+ ifs->type = IF_IFACE_E1;
break;
case T1:
- ifr->ifr_settings.type = IF_IFACE_T1;
+ ifs->type = IF_IFACE_T1;
break;
case V35:
- ifr->ifr_settings.type = IF_IFACE_V35;
+ ifs->type = IF_IFACE_V35;
break;
case V24:
- ifr->ifr_settings.type = IF_IFACE_V24;
+ ifs->type = IF_IFACE_V24;
break;
case X21D:
- ifr->ifr_settings.type = IF_IFACE_X21D;
+ ifs->type = IF_IFACE_X21D;
break;
case X21:
default:
- ifr->ifr_settings.type = IF_IFACE_X21;
+ ifs->type = IF_IFACE_X21;
break;
}
- if (ifr->ifr_settings.size == 0)
+ if (!ifs->size)
return 0; /* only type requested */
- if (ifr->ifr_settings.size < sizeof(sync))
+ if (ifs->size < sizeof(sync))
return -ENOMEM;
i = port->index;
@@ -1901,15 +1900,15 @@ fst_get_iface(struct fst_card_info *card, struct fst_port_info *port,
INTCLK ? CLOCK_INT : CLOCK_EXT;
sync.loopback = 0;
- if (copy_to_user(ifr->ifr_settings.ifs_ifsu.sync, &sync, sizeof(sync)))
+ if (copy_to_user(ifs->ifs_ifsu.sync, &sync, sizeof(sync)))
return -EFAULT;
- ifr->ifr_settings.size = sizeof(sync);
+ ifs->size = sizeof(sync);
return 0;
}
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 +1917,7 @@ 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 +1941,10 @@ 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 +1956,7 @@ 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 +1989,12 @@ 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;
@@ -2011,46 +2009,58 @@ 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;
+ }
+}
- case SIOCWANDEV:
- switch (ifr->ifr_settings.type) {
- case IF_GET_IFACE:
- return fst_get_iface(card, port, ifr);
-
- case IF_IFACE_SYNC_SERIAL:
- case IF_IFACE_V35:
- case IF_IFACE_V24:
- case IF_IFACE_X21:
- case IF_IFACE_X21D:
- case IF_IFACE_T1:
- case IF_IFACE_E1:
- return fst_set_iface(card, port, ifr);
-
- case IF_PROTO_RAW:
- port->mode = FST_RAW;
- return 0;
+static int
+fst_ioctl(struct net_device *dev, struct if_settings *ifs)
+{
+ struct fst_card_info *card;
+ struct fst_port_info *port;
- case IF_GET_PROTO:
- if (port->mode == FST_RAW) {
- ifr->ifr_settings.type = IF_PROTO_RAW;
- return 0;
- }
- return hdlc_ioctl(dev, ifr, cmd);
+ dbg(DBG_IOCTL, "SIOCDEVPRIVATE, %x\n", ifs->type);
- default:
- port->mode = FST_GEN_HDLC;
- dbg(DBG_IOCTL, "Passing this type to hdlc %x\n",
- ifr->ifr_settings.type);
- return hdlc_ioctl(dev, ifr, cmd);
+ port = dev_to_port(dev);
+ card = port->card;
+
+ if (!capable(CAP_NET_ADMIN))
+ return -EPERM;
+
+ switch (ifs->type) {
+ case IF_GET_IFACE:
+ return fst_get_iface(card, port, ifs);
+
+ case IF_IFACE_SYNC_SERIAL:
+ case IF_IFACE_V35:
+ case IF_IFACE_V24:
+ case IF_IFACE_X21:
+ case IF_IFACE_X21D:
+ case IF_IFACE_T1:
+ case IF_IFACE_E1:
+ return fst_set_iface(card, port, ifs);
+
+ case IF_PROTO_RAW:
+ port->mode = FST_RAW;
+ return 0;
+
+ case IF_GET_PROTO:
+ if (port->mode == FST_RAW) {
+ ifs->type = IF_PROTO_RAW;
+ return 0;
}
+ return hdlc_ioctl(dev, ifs);
default:
- /* Not one of ours. Pass through to HDLC package */
- return hdlc_ioctl(dev, ifr, cmd);
+ port->mode = FST_GEN_HDLC;
+ dbg(DBG_IOCTL, "Passing this type to hdlc %x\n",
+ ifs->type);
+ return hdlc_ioctl(dev, ifs);
}
}
@@ -2310,7 +2320,8 @@ 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_siocwandev = fst_ioctl,
+ .ndo_siocdevprivate = fst_siocdevprivate,
.ndo_tx_timeout = fst_tx_timeout,
};
Copyright © 1996 – 2023 Jason A. Donenfeld. All Rights Reverse Engineered.