dev.c (fbcb21705930f2930f506149d0b8d36dfbe45107) dev.c (a54acb3a6f853e8394c4cb7b6a4d93c88f13eefd)
1/*
2 * NET3 Protocol independent device support routines.
3 *
4 * This program is free software; you can redistribute it and/or
5 * modify it under the terms of the GNU General Public License
6 * as published by the Free Software Foundation; either version
7 * 2 of the License, or (at your option) any later version.
8 *

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

655
656/*******************************************************************************
657
658 Device Interface Subroutines
659
660*******************************************************************************/
661
662/**
1/*
2 * NET3 Protocol independent device support routines.
3 *
4 * This program is free software; you can redistribute it and/or
5 * modify it under the terms of the GNU General Public License
6 * as published by the Free Software Foundation; either version
7 * 2 of the License, or (at your option) any later version.
8 *

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

655
656/*******************************************************************************
657
658 Device Interface Subroutines
659
660*******************************************************************************/
661
662/**
663 * dev_get_iflink - get 'iflink' value of a interface
664 * @dev: targeted interface
665 *
666 * Indicates the ifindex the interface is linked to.
667 * Physical interfaces have the same 'ifindex' and 'iflink' values.
668 */
669
670int dev_get_iflink(const struct net_device *dev)
671{
672 if (dev->netdev_ops && dev->netdev_ops->ndo_get_iflink)
673 return dev->netdev_ops->ndo_get_iflink(dev);
674
675 return dev->iflink;
676}
677EXPORT_SYMBOL(dev_get_iflink);
678
679/**
663 * __dev_get_by_name - find a device by its name
664 * @net: the applicable net namespace
665 * @name: name to find
666 *
667 * Find an interface by name. Must be called under RTNL semaphore
668 * or @dev_base_lock. If the name is found a pointer to the device
669 * is returned. If the name is not found then %NULL is returned. The
670 * reference counters are not incremented so the caller must be

--- 5669 unchanged lines hidden (view full) ---

6340 }
6341
6342 ret = -EBUSY;
6343 if (!dev->ifindex)
6344 dev->ifindex = dev_new_index(net);
6345 else if (__dev_get_by_index(net, dev->ifindex))
6346 goto err_uninit;
6347
680 * __dev_get_by_name - find a device by its name
681 * @net: the applicable net namespace
682 * @name: name to find
683 *
684 * Find an interface by name. Must be called under RTNL semaphore
685 * or @dev_base_lock. If the name is found a pointer to the device
686 * is returned. If the name is not found then %NULL is returned. The
687 * reference counters are not incremented so the caller must be

--- 5669 unchanged lines hidden (view full) ---

6357 }
6358
6359 ret = -EBUSY;
6360 if (!dev->ifindex)
6361 dev->ifindex = dev_new_index(net);
6362 else if (__dev_get_by_index(net, dev->ifindex))
6363 goto err_uninit;
6364
6348 if (dev->iflink == -1)
6365 if (dev_get_iflink(dev) == -1)
6349 dev->iflink = dev->ifindex;
6350
6351 /* Transfer changeable features to wanted_features and enable
6352 * software offloads (GSO and GRO).
6353 */
6354 dev->hw_features |= NETIF_F_SOFT_FEATURES;
6355 dev->features |= NETIF_F_SOFT_FEATURES;
6356 dev->wanted_features = dev->features & dev->hw_features;

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

7056 kobject_uevent(&dev->dev.kobj, KOBJ_REMOVE);
7057 netdev_adjacent_del_links(dev);
7058
7059 /* Actually switch the network namespace */
7060 dev_net_set(dev, net);
7061
7062 /* If there is an ifindex conflict assign a new one */
7063 if (__dev_get_by_index(net, dev->ifindex)) {
6366 dev->iflink = dev->ifindex;
6367
6368 /* Transfer changeable features to wanted_features and enable
6369 * software offloads (GSO and GRO).
6370 */
6371 dev->hw_features |= NETIF_F_SOFT_FEATURES;
6372 dev->features |= NETIF_F_SOFT_FEATURES;
6373 dev->wanted_features = dev->features & dev->hw_features;

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

7073 kobject_uevent(&dev->dev.kobj, KOBJ_REMOVE);
7074 netdev_adjacent_del_links(dev);
7075
7076 /* Actually switch the network namespace */
7077 dev_net_set(dev, net);
7078
7079 /* If there is an ifindex conflict assign a new one */
7080 if (__dev_get_by_index(net, dev->ifindex)) {
7064 int iflink = (dev->iflink == dev->ifindex);
7081 int iflink = (dev_get_iflink(dev) == dev->ifindex);
7065 dev->ifindex = dev_new_index(net);
7066 if (iflink)
7067 dev->iflink = dev->ifindex;
7068 }
7069
7070 /* Send a netdev-add uevent to the new namespace */
7071 kobject_uevent(&dev->dev.kobj, KOBJ_ADD);
7072 netdev_adjacent_add_links(dev);

--- 427 unchanged lines hidden --- 		7082 dev->ifindex = dev_new_index(net);
7083 if (iflink)
7084 dev->iflink = dev->ifindex;
7085 }
7086
7087 /* Send a netdev-add uevent to the new namespace */
7088 kobject_uevent(&dev->dev.kobj, KOBJ_ADD);
7089 netdev_adjacent_add_links(dev);

--- 427 unchanged lines hidden ---