#include <linux/security.h>
#include <linux/mutex.h>
#include <linux/if_addr.h>
-#include <linux/nsproxy.h>
#include <asm/uaccess.h>
#include <asm/system.h>
#include <net/pkt_sched.h>
#include <net/fib_rules.h>
#include <net/rtnetlink.h>
+#include <net/net_namespace.h>
struct rtnl_link
{
void rtnl_unlock(void)
{
- mutex_unlock(&rtnl_mutex);
+ /* This fellow will unlock it for us. */
netdev_run_todo();
}
return mutex_trylock(&rtnl_mutex);
}
+int rtnl_is_locked(void)
+{
+ return mutex_is_locked(&rtnl_mutex);
+}
+
static struct rtnl_link *rtnl_msg_handlers[NPROTO];
static inline int rtm_msgindex(int msgtype)
EXPORT_SYMBOL_GPL(rtnl_link_register);
+static void __rtnl_kill_links(struct net *net, struct rtnl_link_ops *ops)
+{
+ struct net_device *dev;
+restart:
+ for_each_netdev(net, dev) {
+ if (dev->rtnl_link_ops == ops) {
+ ops->dellink(dev);
+ goto restart;
+ }
+ }
+}
+
+void rtnl_kill_links(struct net *net, struct rtnl_link_ops *ops)
+{
+ rtnl_lock();
+ __rtnl_kill_links(net, ops);
+ rtnl_unlock();
+}
+EXPORT_SYMBOL_GPL(rtnl_kill_links);
+
/**
* __rtnl_link_unregister - Unregister rtnl_link_ops from rtnetlink.
* @ops: struct rtnl_link_ops * to unregister
*/
void __rtnl_link_unregister(struct rtnl_link_ops *ops)
{
- struct net_device *dev, *n;
struct net *net;
for_each_net(net) {
-restart:
- for_each_netdev_safe(net, dev, n) {
- if (dev->rtnl_link_ops == ops) {
- ops->dellink(dev);
- goto restart;
- }
- }
+ __rtnl_kill_links(net, ops);
}
list_del(&ops->list);
}
return nlmsg_unicast(rtnl, skb, pid);
}
-int rtnl_notify(struct sk_buff *skb, struct net *net, u32 pid, u32 group,
- struct nlmsghdr *nlh, gfp_t flags)
+void rtnl_notify(struct sk_buff *skb, struct net *net, u32 pid, u32 group,
+ struct nlmsghdr *nlh, gfp_t flags)
{
struct sock *rtnl = net->rtnl;
int report = 0;
if (nlh)
report = nlmsg_report(nlh);
- return nlmsg_notify(rtnl, skb, pid, group, report, flags);
+ nlmsg_notify(rtnl, skb, pid, group, report, flags);
}
void rtnl_set_sk_err(struct net *net, u32 group, int error)
return nla_nest_end(skb, mx);
nla_put_failure:
- return nla_nest_cancel(skb, mx);
+ nla_nest_cancel(skb, mx);
+ return -EMSGSIZE;
}
int rtnl_put_cacheinfo(struct sk_buff *skb, struct dst_entry *dst, u32 id,
}
static void copy_rtnl_link_stats(struct rtnl_link_stats *a,
- struct net_device_stats *b)
+ const struct net_device_stats *b)
{
a->rx_packets = b->rx_packets;
a->tx_packets = b->tx_packets;
{
return NLMSG_ALIGN(sizeof(struct ifinfomsg))
+ nla_total_size(IFNAMSIZ) /* IFLA_IFNAME */
+ + nla_total_size(IFALIASZ) /* IFLA_IFALIAS */
+ nla_total_size(IFNAMSIZ) /* IFLA_QDISC */
+ nla_total_size(sizeof(struct rtnl_link_ifmap))
+ nla_total_size(sizeof(struct rtnl_link_stats))
{
struct ifinfomsg *ifm;
struct nlmsghdr *nlh;
+ const struct net_device_stats *stats;
+ struct nlattr *attr;
nlh = nlmsg_put(skb, pid, seq, type, sizeof(*ifm), flags);
if (nlh == NULL)
if (dev->master)
NLA_PUT_U32(skb, IFLA_MASTER, dev->master->ifindex);
- if (dev->qdisc_sleeping)
- NLA_PUT_STRING(skb, IFLA_QDISC, dev->qdisc_sleeping->ops->id);
+ if (dev->qdisc)
+ NLA_PUT_STRING(skb, IFLA_QDISC, dev->qdisc->ops->id);
+
+ if (dev->ifalias)
+ NLA_PUT_STRING(skb, IFLA_IFALIAS, dev->ifalias);
if (1) {
struct rtnl_link_ifmap map = {
NLA_PUT(skb, IFLA_BROADCAST, dev->addr_len, dev->broadcast);
}
- if (dev->get_stats) {
- struct net_device_stats *stats = dev->get_stats(dev);
- if (stats) {
- struct nlattr *attr;
-
- attr = nla_reserve(skb, IFLA_STATS,
- sizeof(struct rtnl_link_stats));
- if (attr == NULL)
- goto nla_put_failure;
+ attr = nla_reserve(skb, IFLA_STATS,
+ sizeof(struct rtnl_link_stats));
+ if (attr == NULL)
+ goto nla_put_failure;
- copy_rtnl_link_stats(nla_data(attr), stats);
- }
- }
+ stats = dev_get_stats(dev);
+ copy_rtnl_link_stats(nla_data(attr), stats);
if (dev->rtnl_link_ops) {
if (rtnl_link_fill(skb, dev) < 0)
[IFLA_LINKMODE] = { .type = NLA_U8 },
[IFLA_LINKINFO] = { .type = NLA_NESTED },
[IFLA_NET_NS_PID] = { .type = NLA_U32 },
+ [IFLA_IFALIAS] = { .type = NLA_STRING, .len = IFALIASZ-1 },
};
static const struct nla_policy ifla_info_policy[IFLA_INFO_MAX+1] = {
[IFLA_INFO_DATA] = { .type = NLA_NESTED },
};
-static struct net *get_net_ns_by_pid(pid_t pid)
-{
- struct task_struct *tsk;
- struct net *net;
-
- /* Lookup the network namespace */
- net = ERR_PTR(-ESRCH);
- rcu_read_lock();
- tsk = find_task_by_vpid(pid);
- if (tsk) {
- struct nsproxy *nsproxy;
- nsproxy = task_nsproxy(tsk);
- if (nsproxy)
- net = get_net(nsproxy->net_ns);
- }
- rcu_read_unlock();
- return net;
-}
-
static int validate_linkmsg(struct net_device *dev, struct nlattr *tb[])
{
if (dev) {
static int do_setlink(struct net_device *dev, struct ifinfomsg *ifm,
struct nlattr **tb, char *ifname, int modified)
{
+ const struct net_device_ops *ops = dev->netdev_ops;
int send_addr_notify = 0;
int err;
struct rtnl_link_ifmap *u_map;
struct ifmap k_map;
- if (!dev->set_config) {
+ if (!ops->ndo_set_config) {
err = -EOPNOTSUPP;
goto errout;
}
k_map.dma = (unsigned char) u_map->dma;
k_map.port = (unsigned char) u_map->port;
- err = dev->set_config(dev, &k_map);
+ err = ops->ndo_set_config(dev, &k_map);
if (err < 0)
goto errout;
struct sockaddr *sa;
int len;
- if (!dev->set_mac_address) {
+ if (!ops->ndo_set_mac_address) {
err = -EOPNOTSUPP;
goto errout;
}
sa->sa_family = dev->type;
memcpy(sa->sa_data, nla_data(tb[IFLA_ADDRESS]),
dev->addr_len);
- err = dev->set_mac_address(dev, sa);
+ err = ops->ndo_set_mac_address(dev, sa);
kfree(sa);
if (err)
goto errout;
modified = 1;
}
+ if (tb[IFLA_IFALIAS]) {
+ err = dev_set_alias(dev, nla_data(tb[IFLA_IFALIAS]),
+ nla_len(tb[IFLA_IFALIAS]));
+ if (err < 0)
+ goto errout;
+ modified = 1;
+ }
+
if (tb[IFLA_BROADCAST]) {
nla_memcpy(dev->broadcast, tb[IFLA_BROADCAST], dev->addr_len);
send_addr_notify = 1;
if (ifm->ifi_change)
flags = (flags & ifm->ifi_change) |
(dev->flags & ~ifm->ifi_change);
- dev_change_flags(dev, flags);
+ err = dev_change_flags(dev, flags);
+ if (err < 0)
+ goto errout;
}
if (tb[IFLA_TXQLEN])
{
int err;
struct net_device *dev;
+ unsigned int num_queues = 1;
+ unsigned int real_num_queues = 1;
+ if (ops->get_tx_queues) {
+ err = ops->get_tx_queues(net, tb, &num_queues, &real_num_queues);
+ if (err)
+ goto err;
+ }
err = -ENOMEM;
- dev = alloc_netdev(ops->priv_size, ifname, ops->setup);
+ dev = alloc_netdev_mq(ops->priv_size, ifname, ops->setup, num_queues);
if (!dev)
goto err;
+ dev->real_num_tx_queues = real_num_queues;
if (strchr(dev->name, '%')) {
err = dev_alloc_name(dev, dev->name);
if (err < 0)
struct nlattr *linkinfo[IFLA_INFO_MAX+1];
int err;
-#ifdef CONFIG_KMOD
+#ifdef CONFIG_MODULES
replay:
#endif
err = nlmsg_parse(nlh, sizeof(*ifm), tb, IFLA_MAX, ifla_policy);
return -EOPNOTSUPP;
if (!ops) {
-#ifdef CONFIG_KMOD
+#ifdef CONFIG_MODULES
if (kind[0]) {
__rtnl_unlock();
request_module("rtnl-link-%s", kind);
kfree_skb(skb);
goto errout;
}
- err = rtnl_notify(skb, net, 0, RTNLGRP_LINK, NULL, GFP_KERNEL);
+ rtnl_notify(skb, net, 0, RTNLGRP_LINK, NULL, GFP_KERNEL);
+ return;
errout:
if (err < 0)
rtnl_set_sk_err(net, RTNLGRP_LINK, err);
EXPORT_SYMBOL(rtnl_lock);
EXPORT_SYMBOL(rtnl_trylock);
EXPORT_SYMBOL(rtnl_unlock);
+EXPORT_SYMBOL(rtnl_is_locked);
EXPORT_SYMBOL(rtnl_unicast);
EXPORT_SYMBOL(rtnl_notify);
EXPORT_SYMBOL(rtnl_set_sk_err);
git://ftp.safe.ca / safe / jmp / linux-2.6 / blobdiff