rtnetlink.c (cbda10fa97d72c7a1923be4426171aa90e8c6dab) rtnetlink.c (e7ed828f10bd89a28f821ae7f20e691704d61923)
1/*
2 * INET An implementation of the TCP/IP protocol suite for the LINUX
3 * operating system. INET is implemented using the BSD Socket
4 * interface as the means of communication with the user level.
5 *
6 * Routing netlink socket interface: protocol independent part.
7 *
8 * Authors: Alexey Kuznetsov, <kuznet@ms2.inr.ac.ru>

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1553
1554err_free:
1555 free_netdev(dev);
1556err:
1557 return ERR_PTR(err);
1558}
1559EXPORT_SYMBOL(rtnl_create_link);
1560
1/*
2 * INET An implementation of the TCP/IP protocol suite for the LINUX
3 * operating system. INET is implemented using the BSD Socket
4 * interface as the means of communication with the user level.
5 *
6 * Routing netlink socket interface: protocol independent part.
7 *
8 * Authors: Alexey Kuznetsov, <kuznet@ms2.inr.ac.ru>

--- 1544 unchanged lines hidden (view full) ---

1553
1554err_free:
1555 free_netdev(dev);
1556err:
1557 return ERR_PTR(err);
1558}
1559EXPORT_SYMBOL(rtnl_create_link);
1560
1561static int rtnl_group_changelink(struct net *net, int group,
1562 struct ifinfomsg *ifm,
1563 struct nlattr **tb)
1564{
1565 struct net_device *dev;
1566 int err;
1567
1568 for_each_netdev(net, dev) {
1569 if (dev->group == group) {
1570 err = do_setlink(dev, ifm, tb, NULL, 0);
1571 if (err < 0)
1572 return err;
1573 }
1574 }
1575
1576 return 0;
1577}
1578
1561static int rtnl_newlink(struct sk_buff *skb, struct nlmsghdr *nlh, void *arg)
1562{
1563 struct net *net = sock_net(skb->sk);
1564 const struct rtnl_link_ops *ops;
1565 struct net_device *dev;
1566 struct ifinfomsg *ifm;
1567 char kind[MODULE_NAME_LEN];
1568 char ifname[IFNAMSIZ];

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1580 if (tb[IFLA_IFNAME])
1581 nla_strlcpy(ifname, tb[IFLA_IFNAME], IFNAMSIZ);
1582 else
1583 ifname[0] = '\0';
1584
1585 ifm = nlmsg_data(nlh);
1586 if (ifm->ifi_index > 0)
1587 dev = __dev_get_by_index(net, ifm->ifi_index);
1579static int rtnl_newlink(struct sk_buff *skb, struct nlmsghdr *nlh, void *arg)
1580{
1581 struct net *net = sock_net(skb->sk);
1582 const struct rtnl_link_ops *ops;
1583 struct net_device *dev;
1584 struct ifinfomsg *ifm;
1585 char kind[MODULE_NAME_LEN];
1586 char ifname[IFNAMSIZ];

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1598 if (tb[IFLA_IFNAME])
1599 nla_strlcpy(ifname, tb[IFLA_IFNAME], IFNAMSIZ);
1600 else
1601 ifname[0] = '\0';
1602
1603 ifm = nlmsg_data(nlh);
1604 if (ifm->ifi_index > 0)
1605 dev = __dev_get_by_index(net, ifm->ifi_index);
1588 else if (ifname[0])
1589 dev = __dev_get_by_name(net, ifname);
1590 else
1591 dev = NULL;
1606 else {
1607 if (ifname[0])
1608 dev = __dev_get_by_name(net, ifname);
1609 else if (tb[IFLA_GROUP])
1610 return rtnl_group_changelink(net,
1611 nla_get_u32(tb[IFLA_GROUP]),
1612 ifm, tb);
1613 else
1614 dev = NULL;
1615 }
1592
1593 err = validate_linkmsg(dev, tb);
1594 if (err < 0)
1595 return err;
1596
1597 if (tb[IFLA_LINKINFO]) {
1598 err = nla_parse_nested(linkinfo, IFLA_INFO_MAX,
1599 tb[IFLA_LINKINFO], ifla_info_policy);

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1617 err = validate_linkmsg(dev, tb);
1618 if (err < 0)
1619 return err;
1620
1621 if (tb[IFLA_LINKINFO]) {
1622 err = nla_parse_nested(linkinfo, IFLA_INFO_MAX,
1623 tb[IFLA_LINKINFO], ifla_info_policy);

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