^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1) // SPDX-License-Identifier: GPL-2.0-only
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3) * Copyright (c) 2007-2014 Nicira, Inc.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 5)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 6) #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 7)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 8) #include <linux/if.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 9) #include <linux/skbuff.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 10) #include <linux/ip.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 11) #include <linux/if_tunnel.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 12) #include <linux/if_vlan.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 13) #include <linux/in.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 14) #include <linux/in_route.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 15) #include <linux/inetdevice.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 16) #include <linux/jhash.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 17) #include <linux/list.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 18) #include <linux/kernel.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 19) #include <linux/module.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 20) #include <linux/workqueue.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 21) #include <linux/rculist.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 22) #include <net/route.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 23) #include <net/xfrm.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 24)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 25) #include <net/icmp.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 26) #include <net/ip.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 27) #include <net/ip_tunnels.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 28) #include <net/gre.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 29) #include <net/net_namespace.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 30) #include <net/netns/generic.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 31) #include <net/protocol.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 32)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 33) #include "datapath.h"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 34) #include "vport.h"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 35) #include "vport-netdev.h"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 36)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 37) static struct vport_ops ovs_gre_vport_ops;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 38)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 39) static struct vport *gre_tnl_create(const struct vport_parms *parms)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 40) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 41) struct net *net = ovs_dp_get_net(parms->dp);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 42) struct net_device *dev;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 43) struct vport *vport;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 44) int err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 45)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 46) vport = ovs_vport_alloc(0, &ovs_gre_vport_ops, parms);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 47) if (IS_ERR(vport))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 48) return vport;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 49)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 50) rtnl_lock();
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 51) dev = gretap_fb_dev_create(net, parms->name, NET_NAME_USER);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 52) if (IS_ERR(dev)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 53) rtnl_unlock();
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 54) ovs_vport_free(vport);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 55) return ERR_CAST(dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 56) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 57)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 58) err = dev_change_flags(dev, dev->flags | IFF_UP, NULL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 59) if (err < 0) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 60) rtnl_delete_link(dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 61) rtnl_unlock();
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 62) ovs_vport_free(vport);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 63) return ERR_PTR(err);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 64) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 65)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 66) rtnl_unlock();
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 67) return vport;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 68) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 69)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 70) static struct vport *gre_create(const struct vport_parms *parms)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 71) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 72) struct vport *vport;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 73)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 74) vport = gre_tnl_create(parms);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 75) if (IS_ERR(vport))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 76) return vport;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 77)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 78) return ovs_netdev_link(vport, parms->name);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 79) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 80)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 81) static struct vport_ops ovs_gre_vport_ops = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 82) .type = OVS_VPORT_TYPE_GRE,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 83) .create = gre_create,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 84) .send = dev_queue_xmit,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 85) .destroy = ovs_netdev_tunnel_destroy,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 86) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 87)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 88) static int __init ovs_gre_tnl_init(void)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 89) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 90) return ovs_vport_ops_register(&ovs_gre_vport_ops);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 91) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 92)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 93) static void __exit ovs_gre_tnl_exit(void)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 94) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 95) ovs_vport_ops_unregister(&ovs_gre_vport_ops);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 96) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 97)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 98) module_init(ovs_gre_tnl_init);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 99) module_exit(ovs_gre_tnl_exit);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 100)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 101) MODULE_DESCRIPTION("OVS: GRE switching port");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 102) MODULE_LICENSE("GPL");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 103) MODULE_ALIAS("vport-type-3");
Orange Pi5 kernel
Deprecated Linux kernel 5.10.110 for OrangePi 5/5B/5+ boards
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