/* * Since the ability to change mac address for open port device is tested in * team_port_add, this function can be called without control of return value */ static int __set_port_mac(struct net_device *port_dev, const unsigned char *dev_addr) { struct sockaddr addr; memcpy(addr.sa_data, dev_addr, ETH_ALEN); addr.sa_family = ARPHRD_ETHER; return dev_set_mac_address(port_dev, &addr); }
int ovs_netdev_set_addr(struct vport *vport, const unsigned char *addr) { struct netdev_vport *netdev_vport = netdev_vport_priv(vport); struct sockaddr sa; sa.sa_family = ARPHRD_ETHER; memcpy(sa.sa_data, addr, ETH_ALEN); return dev_set_mac_address(netdev_vport->dev, &sa); }
int gether_register_netdev(struct net_device *net) { struct eth_dev *dev; struct usb_gadget *g; struct sockaddr sa; int status; if (!net->dev.parent) return -EINVAL; dev = netdev_priv(net); g = dev->gadget; status = register_netdev(net); if (status < 0) { dev_dbg(&g->dev, "register_netdev failed, %d\n", status); return status; } else { INFO(dev, "HOST MAC %pM\n", dev->host_mac); /* two kinds of host-initiated state changes: * - iff DATA transfer is active, carrier is "on" * - tx queueing enabled if open *and* carrier is "on" */ netif_carrier_off(net); } sa.sa_family = net->type; memcpy(sa.sa_data, dev->dev_mac, ETH_ALEN); rtnl_lock(); status = dev_set_mac_address(net, &sa); rtnl_unlock(); if (status) pr_warn("cannot set self ethernet address: %d\n", status); else INFO(dev, "MAC %pM\n", dev->dev_mac); return status; }
static int ieee802154_dump_phy(struct sk_buff *skb, struct netlink_callback *cb) { struct dump_phy_data data = { .cb = cb, .skb = skb, .s_idx = cb->args[0], .idx = 0, }; pr_debug("%s\n", __func__); wpan_phy_for_each(ieee802154_dump_phy_iter, &data); cb->args[0] = data.idx; return skb->len; } static int ieee802154_add_iface(struct sk_buff *skb, struct genl_info *info) { struct sk_buff *msg; struct wpan_phy *phy; const char *name; const char *devname; int rc = -ENOBUFS; struct net_device *dev; pr_debug("%s\n", __func__); if (!info->attrs[IEEE802154_ATTR_PHY_NAME]) return -EINVAL; name = nla_data(info->attrs[IEEE802154_ATTR_PHY_NAME]); if (name[nla_len(info->attrs[IEEE802154_ATTR_PHY_NAME]) - 1] != '\0') return -EINVAL; /* phy name should be null-terminated */ if (info->attrs[IEEE802154_ATTR_DEV_NAME]) { devname = nla_data(info->attrs[IEEE802154_ATTR_DEV_NAME]); if (devname[nla_len(info->attrs[IEEE802154_ATTR_DEV_NAME]) - 1] != '\0') return -EINVAL; /* phy name should be null-terminated */ } else { devname = "wpan%d"; } if (strlen(devname) >= IFNAMSIZ) return -ENAMETOOLONG; phy = wpan_phy_find(name); if (!phy) return -ENODEV; msg = ieee802154_nl_new_reply(info, 0, IEEE802154_ADD_IFACE); if (!msg) goto out_dev; if (!phy->add_iface) { rc = -EINVAL; goto nla_put_failure; } if (info->attrs[IEEE802154_ATTR_HW_ADDR] && nla_len(info->attrs[IEEE802154_ATTR_HW_ADDR]) != IEEE802154_ADDR_LEN) { rc = -EINVAL; goto nla_put_failure; } dev = phy->add_iface(phy, devname); if (IS_ERR(dev)) { rc = PTR_ERR(dev); goto nla_put_failure; } if (info->attrs[IEEE802154_ATTR_HW_ADDR]) { struct sockaddr addr; addr.sa_family = ARPHRD_IEEE802154; nla_memcpy(&addr.sa_data, info->attrs[IEEE802154_ATTR_HW_ADDR], IEEE802154_ADDR_LEN); /* * strangely enough, some callbacks (inetdev_event) from * dev_set_mac_address require RTNL_LOCK */ rtnl_lock(); rc = dev_set_mac_address(dev, &addr); rtnl_unlock(); if (rc) goto dev_unregister; } if (nla_put_string(msg, IEEE802154_ATTR_PHY_NAME, wpan_phy_name(phy)) || nla_put_string(msg, IEEE802154_ATTR_DEV_NAME, dev->name)) goto nla_put_failure; dev_put(dev); wpan_phy_put(phy); return ieee802154_nl_reply(msg, info); dev_unregister: rtnl_lock(); /* del_iface must be called with RTNL lock */ phy->del_iface(phy, dev); dev_put(dev); rtnl_unlock(); nla_put_failure: nlmsg_free(msg); out_dev: wpan_phy_put(phy); return rc; } static int ieee802154_del_iface(struct sk_buff *skb, struct genl_info *info) { struct sk_buff *msg; struct wpan_phy *phy; const char *name; int rc; struct net_device *dev; pr_debug("%s\n", __func__); if (!info->attrs[IEEE802154_ATTR_DEV_NAME]) return -EINVAL; name = nla_data(info->attrs[IEEE802154_ATTR_DEV_NAME]); if (name[nla_len(info->attrs[IEEE802154_ATTR_DEV_NAME]) - 1] != '\0') return -EINVAL; /* name should be null-terminated */ dev = dev_get_by_name(genl_info_net(info), name); if (!dev) return -ENODEV; phy = ieee802154_mlme_ops(dev)->get_phy(dev); BUG_ON(!phy); rc = -EINVAL; /* phy name is optional, but should be checked if it's given */ if (info->attrs[IEEE802154_ATTR_PHY_NAME]) { struct wpan_phy *phy2; const char *pname = nla_data(info->attrs[IEEE802154_ATTR_PHY_NAME]); if (pname[nla_len(info->attrs[IEEE802154_ATTR_PHY_NAME]) - 1] != '\0') /* name should be null-terminated */ goto out_dev; phy2 = wpan_phy_find(pname); if (!phy2) goto out_dev; if (phy != phy2) { wpan_phy_put(phy2); goto out_dev; } } rc = -ENOBUFS; msg = ieee802154_nl_new_reply(info, 0, IEEE802154_DEL_IFACE); if (!msg) goto out_dev; if (!phy->del_iface) { rc = -EINVAL; goto nla_put_failure; } rtnl_lock(); phy->del_iface(phy, dev); /* We don't have device anymore */ dev_put(dev); dev = NULL; rtnl_unlock(); if (nla_put_string(msg, IEEE802154_ATTR_PHY_NAME, wpan_phy_name(phy)) || nla_put_string(msg, IEEE802154_ATTR_DEV_NAME, name)) goto nla_put_failure; wpan_phy_put(phy); return ieee802154_nl_reply(msg, info); nla_put_failure: nlmsg_free(msg); out_dev: wpan_phy_put(phy); if (dev) dev_put(dev); return rc; } static struct genl_ops ieee802154_phy_ops[] = { IEEE802154_DUMP(IEEE802154_LIST_PHY, ieee802154_list_phy, ieee802154_dump_phy), IEEE802154_OP(IEEE802154_ADD_IFACE, ieee802154_add_iface), IEEE802154_OP(IEEE802154_DEL_IFACE, ieee802154_del_iface), }; /* * No need to unregister as family unregistration will do it. */ int nl802154_phy_register(void) { int i; int rc; for (i = 0; i < ARRAY_SIZE(ieee802154_phy_ops); i++) { rc = genl_register_ops(&nl802154_family, &ieee802154_phy_ops[i]); if (rc) return rc; } return 0; }
int ieee802154_dump_phy(struct sk_buff *skb, struct netlink_callback *cb) { struct dump_phy_data data = { .cb = cb, .skb = skb, .s_idx = cb->args[0], .idx = 0, }; pr_debug("%s\n", __func__); wpan_phy_for_each(ieee802154_dump_phy_iter, &data); cb->args[0] = data.idx; return skb->len; } int ieee802154_add_iface(struct sk_buff *skb, struct genl_info *info) { struct sk_buff *msg; struct wpan_phy *phy; const char *name; const char *devname; int rc = -ENOBUFS; struct net_device *dev; int type = __IEEE802154_DEV_INVALID; pr_debug("%s\n", __func__); if (!info->attrs[IEEE802154_ATTR_PHY_NAME]) return -EINVAL; name = nla_data(info->attrs[IEEE802154_ATTR_PHY_NAME]); if (name[nla_len(info->attrs[IEEE802154_ATTR_PHY_NAME]) - 1] != '\0') return -EINVAL; /* phy name should be null-terminated */ if (info->attrs[IEEE802154_ATTR_DEV_NAME]) { devname = nla_data(info->attrs[IEEE802154_ATTR_DEV_NAME]); if (devname[nla_len(info->attrs[IEEE802154_ATTR_DEV_NAME]) - 1] != '\0') return -EINVAL; /* phy name should be null-terminated */ } else { devname = "wpan%d"; } if (strlen(devname) >= IFNAMSIZ) return -ENAMETOOLONG; phy = wpan_phy_find(name); if (!phy) return -ENODEV; msg = ieee802154_nl_new_reply(info, 0, IEEE802154_ADD_IFACE); if (!msg) goto out_dev; if (info->attrs[IEEE802154_ATTR_HW_ADDR] && nla_len(info->attrs[IEEE802154_ATTR_HW_ADDR]) != IEEE802154_ADDR_LEN) { rc = -EINVAL; goto nla_put_failure; } if (info->attrs[IEEE802154_ATTR_DEV_TYPE]) { type = nla_get_u8(info->attrs[IEEE802154_ATTR_DEV_TYPE]); if (type >= __IEEE802154_DEV_MAX) { rc = -EINVAL; goto nla_put_failure; } } dev = rdev_add_virtual_intf_deprecated(wpan_phy_to_rdev(phy), devname, type); if (IS_ERR(dev)) { rc = PTR_ERR(dev); goto nla_put_failure; } dev_hold(dev); if (info->attrs[IEEE802154_ATTR_HW_ADDR]) { struct sockaddr addr; addr.sa_family = ARPHRD_IEEE802154; nla_memcpy(&addr.sa_data, info->attrs[IEEE802154_ATTR_HW_ADDR], IEEE802154_ADDR_LEN); /* strangely enough, some callbacks (inetdev_event) from * dev_set_mac_address require RTNL_LOCK */ rtnl_lock(); rc = dev_set_mac_address(dev, &addr); rtnl_unlock(); if (rc) goto dev_unregister; } if (nla_put_string(msg, IEEE802154_ATTR_PHY_NAME, wpan_phy_name(phy)) || nla_put_string(msg, IEEE802154_ATTR_DEV_NAME, dev->name)) goto nla_put_failure; dev_put(dev); wpan_phy_put(phy); return ieee802154_nl_reply(msg, info); dev_unregister: rtnl_lock(); /* del_iface must be called with RTNL lock */ rdev_del_virtual_intf_deprecated(wpan_phy_to_rdev(phy), dev); dev_put(dev); rtnl_unlock(); nla_put_failure: nlmsg_free(msg); out_dev: wpan_phy_put(phy); return rc; } int ieee802154_del_iface(struct sk_buff *skb, struct genl_info *info) { struct sk_buff *msg; struct wpan_phy *phy; const char *name; int rc; struct net_device *dev; pr_debug("%s\n", __func__); if (!info->attrs[IEEE802154_ATTR_DEV_NAME]) return -EINVAL; name = nla_data(info->attrs[IEEE802154_ATTR_DEV_NAME]); if (name[nla_len(info->attrs[IEEE802154_ATTR_DEV_NAME]) - 1] != '\0') return -EINVAL; /* name should be null-terminated */ dev = dev_get_by_name(genl_info_net(info), name); if (!dev) return -ENODEV; phy = dev->ieee802154_ptr->wpan_phy; BUG_ON(!phy); get_device(&phy->dev); rc = -EINVAL; /* phy name is optional, but should be checked if it's given */ if (info->attrs[IEEE802154_ATTR_PHY_NAME]) { struct wpan_phy *phy2; const char *pname = nla_data(info->attrs[IEEE802154_ATTR_PHY_NAME]); if (pname[nla_len(info->attrs[IEEE802154_ATTR_PHY_NAME]) - 1] != '\0') /* name should be null-terminated */ goto out_dev; phy2 = wpan_phy_find(pname); if (!phy2) goto out_dev; if (phy != phy2) { wpan_phy_put(phy2); goto out_dev; } } rc = -ENOBUFS; msg = ieee802154_nl_new_reply(info, 0, IEEE802154_DEL_IFACE); if (!msg) goto out_dev; rtnl_lock(); rdev_del_virtual_intf_deprecated(wpan_phy_to_rdev(phy), dev); /* We don't have device anymore */ dev_put(dev); dev = NULL; rtnl_unlock(); if (nla_put_string(msg, IEEE802154_ATTR_PHY_NAME, wpan_phy_name(phy)) || nla_put_string(msg, IEEE802154_ATTR_DEV_NAME, name)) goto nla_put_failure; wpan_phy_put(phy); return ieee802154_nl_reply(msg, info); nla_put_failure: nlmsg_free(msg); out_dev: wpan_phy_put(phy); if (dev) dev_put(dev); return rc; }
/* * Perform the SIOCxIFxxx calls, inside rtnl_lock() */ static int dev_ifsioc(struct net *net, struct ifreq *ifr, unsigned int cmd) { int err; struct net_device *dev = __dev_get_by_name(net, ifr->ifr_name); const struct net_device_ops *ops; if (!dev) return -ENODEV; ops = dev->netdev_ops; switch (cmd) { case SIOCSIFFLAGS: /* Set interface flags */ return dev_change_flags(dev, ifr->ifr_flags); case SIOCSIFMETRIC: /* Set the metric on the interface (currently unused) */ return -EOPNOTSUPP; case SIOCSIFMTU: /* Set the MTU of a device */ return dev_set_mtu(dev, ifr->ifr_mtu); case SIOCSIFHWADDR: if (dev->addr_len > sizeof(struct sockaddr)) return -EINVAL; return dev_set_mac_address(dev, &ifr->ifr_hwaddr); case SIOCSIFHWBROADCAST: if (ifr->ifr_hwaddr.sa_family != dev->type) return -EINVAL; memcpy(dev->broadcast, ifr->ifr_hwaddr.sa_data, min(sizeof(ifr->ifr_hwaddr.sa_data), (size_t)dev->addr_len)); call_netdevice_notifiers(NETDEV_CHANGEADDR, dev); return 0; case SIOCSIFMAP: if (ops->ndo_set_config) { if (!netif_device_present(dev)) return -ENODEV; return ops->ndo_set_config(dev, &ifr->ifr_map); } return -EOPNOTSUPP; case SIOCADDMULTI: if (!ops->ndo_set_rx_mode || ifr->ifr_hwaddr.sa_family != AF_UNSPEC) return -EINVAL; if (!netif_device_present(dev)) return -ENODEV; return dev_mc_add_global(dev, ifr->ifr_hwaddr.sa_data); case SIOCDELMULTI: if (!ops->ndo_set_rx_mode || ifr->ifr_hwaddr.sa_family != AF_UNSPEC) return -EINVAL; if (!netif_device_present(dev)) return -ENODEV; return dev_mc_del_global(dev, ifr->ifr_hwaddr.sa_data); case SIOCSIFTXQLEN: if (ifr->ifr_qlen < 0) return -EINVAL; return dev_change_tx_queue_len(dev, ifr->ifr_qlen); case SIOCSIFNAME: ifr->ifr_newname[IFNAMSIZ-1] = '\0'; return dev_change_name(dev, ifr->ifr_newname); case SIOCSHWTSTAMP: err = net_hwtstamp_validate(ifr); if (err) return err; /* fall through */ /* * Unknown or private ioctl */ default: if ((cmd >= SIOCDEVPRIVATE && cmd <= SIOCDEVPRIVATE + 15) || cmd == SIOCBONDENSLAVE || cmd == SIOCBONDRELEASE || cmd == SIOCBONDSETHWADDR || cmd == SIOCBONDSLAVEINFOQUERY || cmd == SIOCBONDINFOQUERY || cmd == SIOCBONDCHANGEACTIVE || cmd == SIOCGMIIPHY || cmd == SIOCGMIIREG || cmd == SIOCSMIIREG || cmd == SIOCBRADDIF || cmd == SIOCBRDELIF || cmd == SIOCSHWTSTAMP || cmd == SIOCGHWTSTAMP || cmd == SIOCWANDEV) { err = -EOPNOTSUPP; if (ops->ndo_do_ioctl) { if (netif_device_present(dev)) err = ops->ndo_do_ioctl(dev, ifr, cmd); else err = -ENODEV; } } else err = -EINVAL; } return err; }