#include <linux/if_arp.h> /* ARPHRD_ETHER */
#include <linux/etherdevice.h> /* compare_ether_addr */
#include <linux/interrupt.h>
+#include <net/net_namespace.h>
#include <linux/wireless.h> /* Pretty obvious */
#include <net/iw_handler.h> /* New driver API */
return dev->wireless_handlers->get_wireless_stats(dev);
/* Not found */
- return (struct iw_statistics *) NULL;
+ return NULL;
}
/* ---------------------------------------------------------------- */
static int call_commit_handler(struct net_device *dev)
{
if ((netif_running(dev)) &&
- (dev->wireless_handlers->standard[0] != NULL)) {
+ (dev->wireless_handlers->standard[0] != NULL))
/* Call the commit handler on the driver */
return dev->wireless_handlers->standard[0](dev, NULL,
NULL, NULL);
- } else
+ else
return 0; /* Command completed successfully */
}
struct iw_statistics *stats;
stats = get_wireless_stats(dev);
- if (stats != (struct iw_statistics *) NULL) {
-
+ if (stats) {
/* Copy statistics to extra */
memcpy(extra, stats, sizeof(struct iw_statistics));
wrqu->data.length = sizeof(struct iw_statistics);
static int wireless_seq_open(struct inode *inode, struct file *file)
{
- return seq_open(file, &wireless_seq_ops);
+ struct seq_file *seq;
+ int res;
+ res = seq_open(file, &wireless_seq_ops);
+ if (!res) {
+ seq = file->private_data;
+ seq->private = get_proc_net(inode);
+ if (!seq->private) {
+ seq_release(inode, file);
+ res = -ENXIO;
+ }
+ }
+ return res;
+}
+
+static int wireless_seq_release(struct inode *inode, struct file *file)
+{
+ struct seq_file *seq = file->private_data;
+ struct net *net = seq->private;
+ put_net(net);
+ return seq_release(inode, file);
}
static const struct file_operations wireless_seq_fops = {
.open = wireless_seq_open,
.read = seq_read,
.llseek = seq_lseek,
- .release = seq_release,
+ .release = wireless_seq_release,
};
-int __init wext_proc_init(void)
+int wext_proc_init(struct net *net)
{
/* Create /proc/net/wireless entry */
- if (!proc_net_fops_create("wireless", S_IRUGO, &wireless_seq_fops))
+ if (!proc_net_fops_create(net, "wireless", S_IRUGO, &wireless_seq_fops))
return -ENOMEM;
return 0;
}
+
+void wext_proc_exit(struct net *net)
+{
+ proc_net_remove(net, "wireless");
+}
#endif /* CONFIG_PROC_FS */
/************************** IOCTL SUPPORT **************************/
/* Create the kernel buffer */
/* kzalloc ensures NULL-termination for essid_compat */
extra = kzalloc(extra_size, GFP_KERNEL);
- if (extra == NULL) {
+ if (extra == NULL)
return -ENOMEM;
- }
/* If it is a SET, get all the extra data in here */
if (IW_IS_SET(cmd) && (iwr->u.data.length != 0)) {
if (iwr->u.data.length > (descr->set_args &
IW_PRIV_SIZE_MASK))
return -E2BIG;
- } else {
- /* Check NULL pointer */
- if (iwr->u.data.pointer == NULL)
- return -EFAULT;
- }
+ } else if (iwr->u.data.pointer == NULL)
+ return -EFAULT;
/* Always allocate for max space. Easier, and won't last
* long... */
extra = kmalloc(extra_size, GFP_KERNEL);
- if (extra == NULL) {
+ if (extra == NULL)
return -ENOMEM;
- }
/* If it is a SET, get all the extra data in here */
if (IW_IS_SET(cmd) && (iwr->u.data.length != 0)) {
* Main IOCTl dispatcher.
* Check the type of IOCTL and call the appropriate wrapper...
*/
-static int wireless_process_ioctl(struct ifreq *ifr, unsigned int cmd)
+static int wireless_process_ioctl(struct net *net, struct ifreq *ifr, unsigned int cmd)
{
struct net_device *dev;
iw_handler handler;
* The copy_to/from_user() of ifr is also dealt with in there */
/* Make sure the device exist */
- if ((dev = __dev_get_by_name(ifr->ifr_name)) == NULL)
+ if ((dev = __dev_get_by_name(net, ifr->ifr_name)) == NULL)
return -ENODEV;
/* A bunch of special cases, then the generic case...
}
/* entry point from dev ioctl */
-int wext_handle_ioctl(struct ifreq *ifr, unsigned int cmd,
+int wext_handle_ioctl(struct net *net, struct ifreq *ifr, unsigned int cmd,
void __user *arg)
{
int ret;
&& !capable(CAP_NET_ADMIN))
return -EPERM;
- dev_load(ifr->ifr_name);
+ dev_load(net, ifr->ifr_name);
rtnl_lock();
- ret = wireless_process_ioctl(ifr, cmd);
+ ret = wireless_process_ioctl(net, ifr, cmd);
rtnl_unlock();
if (IW_IS_GET(cmd) && copy_to_user(arg, ifr, sizeof(struct ifreq)))
return -EFAULT;
{
struct ifinfomsg *r;
struct nlmsghdr *nlh;
- unsigned char *b = skb_tail_pointer(skb);
- nlh = NLMSG_PUT(skb, 0, 0, type, sizeof(*r));
- r = NLMSG_DATA(nlh);
+ nlh = nlmsg_put(skb, 0, 0, type, sizeof(*r), 0);
+ if (nlh == NULL)
+ return -EMSGSIZE;
+
+ r = nlmsg_data(nlh);
r->ifi_family = AF_UNSPEC;
r->__ifi_pad = 0;
r->ifi_type = dev->type;
r->ifi_change = 0; /* Wireless changes don't affect those flags */
/* Add the wireless events in the netlink packet */
- RTA_PUT(skb, IFLA_WIRELESS, event_len, event);
+ NLA_PUT(skb, IFLA_WIRELESS, event_len, event);
- nlh->nlmsg_len = skb_tail_pointer(skb) - b;
- return skb->len;
+ return nlmsg_end(skb, nlh);
-nlmsg_failure:
-rtattr_failure:
- nlmsg_trim(skb, b);
- return -1;
+nla_put_failure:
+ nlmsg_cancel(skb, nlh);
+ return -EMSGSIZE;
}
/* ---------------------------------------------------------------- */
static void rtmsg_iwinfo(struct net_device *dev, char *event, int event_len)
{
struct sk_buff *skb;
- int size = NLMSG_GOODSIZE;
+ int err;
- skb = alloc_skb(size, GFP_ATOMIC);
+ skb = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_ATOMIC);
if (!skb)
return;
- if (rtnetlink_fill_iwinfo(skb, dev, RTM_NEWLINK,
- event, event_len) < 0) {
+ err = rtnetlink_fill_iwinfo(skb, dev, RTM_NEWLINK, event, event_len);
+ if (err < 0) {
+ WARN_ON(err == -EMSGSIZE);
kfree_skb(skb);
return;
}
+
NETLINK_CB(skb).dst_group = RTNLGRP_LINK;
skb_queue_tail(&wireless_nlevent_queue, skb);
tasklet_schedule(&wireless_nlevent_tasklet);
event->len = event_len;
event->cmd = cmd;
memcpy(&event->u, ((char *) wrqu) + wrqu_off, hdr_len - IW_EV_LCP_LEN);
- if (extra != NULL)
+ if (extra)
memcpy(((char *) event) + hdr_len, extra, extra_len);
/* Send via the RtNetlink event channel */
* Because this is called on the Rx path via wireless_spy_update(),
* we want it to be efficient...
*/
-static inline struct iw_spy_data * get_spydata(struct net_device *dev)
+static inline struct iw_spy_data *get_spydata(struct net_device *dev)
{
/* This is the new way */
if (dev->wireless_data)
- return(dev->wireless_data->spy_data);
+ return dev->wireless_data->spy_data;
return NULL;
}
git://ftp.safe.ca / safe / jmp / linux-2.6 / blobdiff