diff options
Diffstat (limited to 'net/core/net-sysfs.c')
| -rw-r--r-- | net/core/net-sysfs.c | 80 |
1 files changed, 56 insertions, 24 deletions
diff --git a/net/core/net-sysfs.c b/net/core/net-sysfs.c index c57c4b228bb5..d2b596537d41 100644 --- a/net/core/net-sysfs.c +++ b/net/core/net-sysfs.c @@ -14,7 +14,9 @@ #include <linux/netdevice.h> #include <linux/if_arp.h> #include <linux/slab.h> +#include <linux/nsproxy.h> #include <net/sock.h> +#include <net/net_namespace.h> #include <linux/rtnetlink.h> #include <linux/wireless.h> #include <linux/vmalloc.h> @@ -27,6 +29,7 @@ static const char fmt_hex[] = "%#x\n"; static const char fmt_long_hex[] = "%#lx\n"; static const char fmt_dec[] = "%d\n"; static const char fmt_ulong[] = "%lu\n"; +static const char fmt_u64[] = "%llu\n"; static inline int dev_isalive(const struct net_device *dev) { @@ -322,14 +325,15 @@ static ssize_t netstat_show(const struct device *d, struct net_device *dev = to_net_dev(d); ssize_t ret = -EINVAL; - WARN_ON(offset > sizeof(struct net_device_stats) || - offset % sizeof(unsigned long) != 0); + WARN_ON(offset > sizeof(struct rtnl_link_stats64) || + offset % sizeof(u64) != 0); read_lock(&dev_base_lock); if (dev_isalive(dev)) { - const struct net_device_stats *stats = dev_get_stats(dev); - ret = sprintf(buf, fmt_ulong, - *(unsigned long *)(((u8 *) stats) + offset)); + struct rtnl_link_stats64 temp; + const struct rtnl_link_stats64 *stats = dev_get_stats(dev, &temp); + + ret = sprintf(buf, fmt_u64, *(u64 *)(((u8 *) stats) + offset)); } read_unlock(&dev_base_lock); return ret; @@ -341,7 +345,7 @@ static ssize_t show_##name(struct device *d, \ struct device_attribute *attr, char *buf) \ { \ return netstat_show(d, attr, buf, \ - offsetof(struct net_device_stats, name)); \ + offsetof(struct rtnl_link_stats64, name)); \ } \ static DEVICE_ATTR(name, S_IRUGO, show_##name, NULL) @@ -467,6 +471,7 @@ static struct attribute_group wireless_group = { .attrs = wireless_attrs, }; #endif +#endif /* CONFIG_SYSFS */ #ifdef CONFIG_RPS /* @@ -766,7 +771,38 @@ static void rx_queue_remove_kobjects(struct net_device *net) kset_unregister(net->queues_kset); } #endif /* CONFIG_RPS */ -#endif /* CONFIG_SYSFS */ + +static const void *net_current_ns(void) +{ + return current->nsproxy->net_ns; +} + +static const void *net_initial_ns(void) +{ + return &init_net; +} + +static const void *net_netlink_ns(struct sock *sk) +{ + return sock_net(sk); +} + +static struct kobj_ns_type_operations net_ns_type_operations = { + .type = KOBJ_NS_TYPE_NET, + .current_ns = net_current_ns, + .netlink_ns = net_netlink_ns, + .initial_ns = net_initial_ns, +}; + +static void net_kobj_ns_exit(struct net *net) +{ + kobj_ns_exit(KOBJ_NS_TYPE_NET, net); +} + +static struct pernet_operations kobj_net_ops = { + .exit = net_kobj_ns_exit, +}; + #ifdef CONFIG_HOTPLUG static int netdev_uevent(struct device *d, struct kobj_uevent_env *env) @@ -774,9 +810,6 @@ static int netdev_uevent(struct device *d, struct kobj_uevent_env *env) struct net_device *dev = to_net_dev(d); int retval; - if (!net_eq(dev_net(dev), &init_net)) - return 0; - /* pass interface to uevent. */ retval = add_uevent_var(env, "INTERFACE=%s", dev->name); if (retval) @@ -806,6 +839,13 @@ static void netdev_release(struct device *d) kfree((char *)dev - dev->padded); } +static const void *net_namespace(struct device *d) +{ + struct net_device *dev; + dev = container_of(d, struct net_device, dev); + return dev_net(dev); +} + static struct class net_class = { .name = "net", .dev_release = netdev_release, @@ -815,6 +855,8 @@ static struct class net_class = { #ifdef CONFIG_HOTPLUG .dev_uevent = netdev_uevent, #endif + .ns_type = &net_ns_type_operations, + .namespace = net_namespace, }; /* Delete sysfs entries but hold kobject reference until after all @@ -826,9 +868,6 @@ void netdev_unregister_kobject(struct net_device * net) kobject_get(&dev->kobj); - if (!net_eq(dev_net(net), &init_net)) - return; - #ifdef CONFIG_RPS rx_queue_remove_kobjects(net); #endif @@ -843,6 +882,7 @@ int netdev_register_kobject(struct net_device *net) const struct attribute_group **groups = net->sysfs_groups; int error = 0; + device_initialize(dev); dev->class = &net_class; dev->platform_data = net; dev->groups = groups; @@ -865,9 +905,6 @@ int netdev_register_kobject(struct net_device *net) #endif #endif /* CONFIG_SYSFS */ - if (!net_eq(dev_net(net), &init_net)) - return 0; - error = device_add(dev); if (error) return error; @@ -887,22 +924,17 @@ int netdev_class_create_file(struct class_attribute *class_attr) { return class_create_file(&net_class, class_attr); } +EXPORT_SYMBOL(netdev_class_create_file); void netdev_class_remove_file(struct class_attribute *class_attr) { class_remove_file(&net_class, class_attr); } - -EXPORT_SYMBOL(netdev_class_create_file); EXPORT_SYMBOL(netdev_class_remove_file); -void netdev_initialize_kobject(struct net_device *net) -{ - struct device *device = &(net->dev); - device_initialize(device); -} - int netdev_kobject_init(void) { + kobj_ns_type_register(&net_ns_type_operations); + register_pernet_subsys(&kobj_net_ops); return class_register(&net_class); } |