/* * Copyright (c) 2014 Nicira, Inc. * Copyright (c) 2013 Cisco Systems, Inc. * * This program is free software; you can redistribute it and/or * modify it under the terms of version 2 of the GNU General Public * License as published by the Free Software Foundation. * * This program is distributed in the hope that it will be useful, but * WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program; if not, write to the Free Software * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA * 02110-1301, USA */ #include #include #include #include #include #include #include #include #include "datapath.h" #include "vport.h" #include "vport-netdev.h" static struct vport_ops ovs_vxlan_netdev_vport_ops; static int vxlan_get_options(const struct vport *vport, struct sk_buff *skb) { struct vxlan_dev *vxlan = netdev_priv(vport->dev); __be16 dst_port = vxlan->cfg.dst_port; if (nla_put_u16(skb, OVS_TUNNEL_ATTR_DST_PORT, ntohs(dst_port))) return -EMSGSIZE; if (vxlan->flags & VXLAN_F_GBP) { struct nlattr *exts; exts = nla_nest_start(skb, OVS_TUNNEL_ATTR_EXTENSION); if (!exts) return -EMSGSIZE; if (vxlan->flags & VXLAN_F_GBP && nla_put_flag(skb, OVS_VXLAN_EXT_GBP)) return -EMSGSIZE; nla_nest_end(skb, exts); } return 0; } static const struct nla_policy exts_policy[OVS_VXLAN_EXT_MAX + 1] = { [OVS_VXLAN_EXT_GBP] = { .type = NLA_FLAG, }, }; static int vxlan_configure_exts(struct vport *vport, struct nlattr *attr, struct vxlan_config *conf) { struct nlattr *exts[OVS_VXLAN_EXT_MAX + 1]; int err; if (nla_len(attr) < sizeof(struct nlattr)) return -EINVAL; err = nla_parse_nested(exts, OVS_VXLAN_EXT_MAX, attr, exts_policy); if (err < 0) return err; if (exts[OVS_VXLAN_EXT_GBP]) conf->flags |= VXLAN_F_GBP; return 0; } static struct vport *vxlan_tnl_create(const struct vport_parms *parms) { struct net *net = ovs_dp_get_net(parms->dp); struct nlattr *options = parms->options; struct net_device *dev; struct vport *vport; struct nlattr *a; int err; struct vxlan_config conf = { .no_share = true, .flags = VXLAN_F_COLLECT_METADATA | VXLAN_F_UDP_ZERO_CSUM6_RX, /* Don't restrict the packets that can be sent by MTU */ .mtu = IP_MAX_MTU, }; if (!options) { err = -EINVAL; goto error; } a = nla_find_nested(options, OVS_TUNNEL_ATTR_DST_PORT); if (a && nla_len(a) == sizeof(u16)) { conf.dst_port = htons(nla_get_u16(a)); } else { /* Require destination port from userspace. */ err = -EINVAL; goto error; } vport = ovs_vport_alloc(0, &ovs_vxlan_netdev_vport_ops, parms); if (IS_ERR(vport)) return vport; a = nla_find_nested(options, OVS_TUNNEL_ATTR_EXTENSION); if (a) { err = vxlan_configure_exts(vport, a, &conf); if (err) { ovs_vport_free(vport); goto error; } } rtnl_lock(); dev = vxlan_dev_create(net, parms->name, NET_NAME_USER, &conf); if (IS_ERR(dev)) { rtnl_unlock(); ovs_vport_free(vport); return ERR_CAST(dev); } err = dev_change_flags(dev, dev->flags | IFF_UP); if (err < 0) { rtnl_delete_link(dev); rtnl_unlock(); ovs_vport_free(vport); goto error; } rtnl_unlock(); return vport; error: return ERR_PTR(err); } static struct vport *vxlan_create(const struct vport_parms *parms) { struct vport *vport; vport = vxlan_tnl_create(parms); if (IS_ERR(vport)) return vport; return ovs_netdev_link(vport, parms->name); } static struct vport_ops ovs_vxlan_netdev_vport_ops = { .type = OVS_VPORT_TYPE_VXLAN, .create = vxlan_create, .destroy = ovs_netdev_tunnel_destroy, .get_options = vxlan_get_options, .send = dev_queue_xmit, }; static int __init ovs_vxlan_tnl_init(void) { return ovs_vport_ops_register(&ovs_vxlan_netdev_vport_ops); } static void __exit ovs_vxlan_tnl_exit(void) { ovs_vport_ops_unregister(&ovs_vxlan_netdev_vport_ops); } module_init(ovs_vxlan_tnl_init); module_exit(ovs_vxlan_tnl_exit); MODULE_DESCRIPTION("OVS: VXLAN switching port"); MODULE_LICENSE("GPL"); MODULE_ALIAS("vport-type-4"); on>
authorLinus Torvalds <torvalds@linux-foundation.org>2017-01-24 12:38:43 -0800
committerLinus Torvalds <torvalds@linux-foundation.org>2017-01-24 12:38:43 -0800
commit0263d4ebd94b36280608e296cba39b924b6e832b (patch)
tree6e21b4b3d8e8fb12cdfcfd185d46992487265a9b /include/net/compat.h
parent19ca2c8fecb1592d623fe5e82d6796f8d446268d (diff)
parent7b9e1d89e1b6a3b99a8fdd949aa0f98dd5bf2f6b (diff)
Merge tag 'platform-drivers-x86-v4.10-4' of git://git.infradead.org/linux-platform-drivers-x86
Pull x86 platform-driver fixes from Andy Shevchenko: "This is my first pull request since I become a co-maintainer of Platform Drivers x86 subsystem. It's a bit bigger than usual due to material collected for almost two weeks in a row. MAINTAINERS: - Add myself to X86 PLATFORM DRIVERS as a co-maintainer ideapad-laptop: - handle ACPI event 1 intel_mid_powerbtn: - Set IRQ_ONESHOT surface3-wmi: - fix uninitialized symbol - Shut up unused-function warning mlx-platform: - free first dev on error" * tag 'platform-drivers-x86-v4.10-4' of git://git.infradead.org/linux-platform-drivers-x86: MAINTAINERS: Add myself to X86 PLATFORM DRIVERS as a co-maintainer platform/x86: ideapad-laptop: handle ACPI event 1 platform/x86: intel_mid_powerbtn: Set IRQ_ONESHOT platform/x86: surface3-wmi: fix uninitialized symbol platform/x86: surface3-wmi: Shut up unused-function warning platform/x86: mlx-platform: free first dev on error
Diffstat (limited to 'include/net/compat.h')