git am warning:
/home/pravin/ovs/w7/.git/rebase-apply/patch:53: trailing whitespace.
}
warning: 1 line adds whitespace errors.
-----------------------------------------------------------
compiler warning:
lib/odp-util.c:869:15: warning: cast from 'uint8_t *' (aka 'unsigned
char *') to 'struct geneve_opt *'
increases required alignment from 1 to 2 [-Wcast-align]
opt = (struct geneve_opt *)((uint8_t *)opt + len);
^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
lib/odp-util.c:845:63: warning: unused parameter 'tun' [-Wunused-parameter]
parse_geneve_opts(const struct nlattr *attr, struct flow_tnl *tun)
^
On Tue, Jun 10, 2014 at 4:47 PM, Jesse Gross <[email protected]> wrote:
> This adds support for Geneve - Generic Network Virtualization
> Encapsulation. The protocol is documented at
> http://tools.ietf.org/html/draft-gross-geneve-00
>
> The kernel implementation is completely agnostic to the options
> that are in use and can handle newly defined options without
> further work. It does this by simply matching on a byte array
> of options and allowing userspace to setup flows on this array.
>
> Userspace currently implements only support for basic version of
> Geneve. It can work with the base header (including the VNI) and
> is capable of parsing options but does not currently support any
> particular option definitions. Over time, the intention is to
> allow options to be matched through OpenFlow without requiring
> explicit support in OVS userspace.
>
> Signed-off-by: Jesse Gross <[email protected]>
> ---
> datapath/Modules.mk | 1 +
> datapath/flow.c | 7 +
> datapath/flow.h | 16 +-
> datapath/flow_netlink.c | 112 +++++-
> datapath/linux/Modules.mk | 1 +
> datapath/linux/compat/include/net/geneve.h | 23 ++
> datapath/linux/compat/include/net/ip_tunnels.h | 1 +
> datapath/vport-geneve.c | 464
> +++++++++++++++++++++++++
> datapath/vport-gre.c | 2 +-
> datapath/vport-lisp.c | 2 +-
> datapath/vport-vxlan.c | 2 +-
> datapath/vport.c | 1 +
> datapath/vport.h | 1 +
> include/linux/openvswitch.h | 3 +-
> lib/dpif-linux.c | 5 +
> lib/netdev-vport.c | 16 +-
> lib/odp-util.c | 43 +++
> lib/packets.h | 18 +
> tests/ovs-vsctl.at | 6 +-
> tests/tunnel.at | 12 +
> vswitchd/vswitch.xml | 15 +-
> 21 files changed, 726 insertions(+), 25 deletions(-)
> create mode 100644 datapath/linux/compat/include/net/geneve.h
> create mode 100644 datapath/vport-geneve.c
>
> diff --git a/datapath/Modules.mk b/datapath/Modules.mk
> index b652411..41ffbea 100644
> --- a/datapath/Modules.mk
> +++ b/datapath/Modules.mk
> @@ -14,6 +14,7 @@ openvswitch_sources = \
> flow_netlink.c \
> flow_table.c \
> vport.c \
> + vport-geneve.c \
> vport-gre.c \
> vport-internal_dev.c \
> vport-lisp.c \
> diff --git a/datapath/flow.c b/datapath/flow.c
> index f1bb95d..7b108ed 100644
> --- a/datapath/flow.c
> +++ b/datapath/flow.c
> @@ -455,6 +455,13 @@ int ovs_flow_extract(struct sk_buff *skb, u16 in_port,
> struct sw_flow_key *key)
> struct ovs_tunnel_info *tun_info = OVS_CB(skb)->tun_info;
> memcpy(&key->tun_key, &tun_info->tunnel,
> sizeof(key->tun_key));
> + if (tun_info->options) {
> + memcpy(GENEVE_OPTS(key, tun_info->options_len),
> + tun_info->options, tun_info->options_len);
Need to check options_len before copying data from packet.
> + key->tun_opts_len = tun_info->options_len;
> + } else {
> + key->tun_opts_len = 0;
> + }
> } else {
> memset(&key->tun_key, 0, sizeof(key->tun_key));
> }
> diff --git a/datapath/flow.h b/datapath/flow.h
> index 0ecf78b..5d8383c 100644
> --- a/datapath/flow.h
> +++ b/datapath/flow.h
> @@ -53,11 +53,20 @@ struct ovs_key_ipv4_tunnel {
>
> struct ovs_tunnel_info {
> struct ovs_key_ipv4_tunnel tunnel;
> + struct geneve_opt *options;
> + u8 options_len;
> };
>
> +#define GENEVE_OPTS(flow_key, opt_len) (struct geneve_opt *) \
> + ((flow_key)->tun_opts + \
> + FIELD_SIZEOF(struct sw_flow_key,
> tun_opts) - \
> + opt_len)
> +
> static inline void ovs_flow_tun_info_init(struct ovs_tunnel_info *tun_info,
> const struct iphdr *iph, __be64
> tun_id,
> - __be16 tun_flags)
> + __be16 tun_flags,
> + struct geneve_opt *opts,
> + u8 opts_len)
> {
> tun_info->tunnel.tun_id = tun_id;
> tun_info->tunnel.ipv4_src = iph->saddr;
> @@ -69,9 +78,14 @@ static inline void ovs_flow_tun_info_init(struct
> ovs_tunnel_info *tun_info,
> /* clear struct padding. */
> memset((unsigned char *) &tun_info->tunnel + OVS_TUNNEL_KEY_SIZE, 0,
> sizeof(tun_info->tunnel) - OVS_TUNNEL_KEY_SIZE);
> +
> + tun_info->options = opts;
> + tun_info->options_len = opts_len;
> }
>
> struct sw_flow_key {
> + u8 tun_opts[255];
> + u8 tun_opts_len;
> struct ovs_key_ipv4_tunnel tun_key; /* Encapsulating tunnel key. */
> struct {
> u32 priority; /* Packet QoS priority. */
> diff --git a/datapath/flow_netlink.c b/datapath/flow_netlink.c
> index c5ca2f4..2e6d08c 100644
> --- a/datapath/flow_netlink.c
> +++ b/datapath/flow_netlink.c
> @@ -42,6 +42,7 @@
> #include <linux/icmp.h>
> #include <linux/icmpv6.h>
> #include <linux/rculist.h>
> +#include <net/geneve.h>
> #include <net/ip.h>
> #include <net/ip_tunnels.h>
> #include <net/ipv6.h>
> @@ -89,18 +90,21 @@ static void update_range__(struct sw_flow_match *match,
> } \
> } while (0)
>
> -#define SW_FLOW_KEY_MEMCPY(match, field, value_p, len, is_mask) \
> +#define SW_FLOW_KEY_MEMCPY_OFFSET(match, offset, value_p, len, is_mask) \
> do { \
> - update_range__(match, offsetof(struct sw_flow_key, field), \
> - len, is_mask); \
> + update_range__(match, offset, len, is_mask); \
> if (is_mask) { \
> if ((match)->mask) \
> - memcpy(&(match)->mask->key.field, value_p,
> len);\
> + memcpy((u8 *)&(match)->mask->key + offset,
> value_p, len);\
> } else { \
> - memcpy(&(match)->key->field, value_p, len); \
> + memcpy((u8 *)(match)->key + offset, value_p, len);
> \
> } \
> } while (0)
>
> +#define SW_FLOW_KEY_MEMCPY(match, field, value_p, len, is_mask) \
> + SW_FLOW_KEY_MEMCPY_OFFSET(match, offsetof(struct sw_flow_key, field),
> \
> + value_p, len, is_mask)
> +
> static u16 range_n_bytes(const struct sw_flow_key_range *range)
> {
> return range->end - range->start;
> @@ -348,6 +352,7 @@ static int ipv4_tun_from_nlattr(const struct nlattr *attr,
> [OVS_TUNNEL_KEY_ATTR_DONT_FRAGMENT] = 0,
> [OVS_TUNNEL_KEY_ATTR_CSUM] = 0,
> [OVS_TUNNEL_KEY_ATTR_OAM] = 0,
> + [OVS_TUNNEL_KEY_ATTR_GENEVE_OPTS] = -1,
> };
>
> if (type > OVS_TUNNEL_KEY_ATTR_MAX) {
> @@ -356,7 +361,8 @@ static int ipv4_tun_from_nlattr(const struct nlattr *attr,
> return -EINVAL;
> }
>
> - if (ovs_tunnel_key_lens[type] != nla_len(a)) {
> + if (ovs_tunnel_key_lens[type] != nla_len(a) &&
> + ovs_tunnel_key_lens[type] != -1) {
> OVS_NLERR("IPv4 tunnel attribute type has unexpected "
> " length (type=%d, length=%d,
> expected=%d).\n",
> type, nla_len(a),
> ovs_tunnel_key_lens[type]);
> @@ -395,6 +401,38 @@ static int ipv4_tun_from_nlattr(const struct nlattr
> *attr,
> case OVS_TUNNEL_KEY_ATTR_OAM:
> tun_flags |= TUNNEL_OAM;
> break;
> + case OVS_TUNNEL_KEY_ATTR_GENEVE_OPTS:
> + if (nla_len(a) > sizeof(match->key->tun_opts)) {
> + OVS_NLERR("Geneve option length exceeds "
> + "maximum size (len %d, max %zu).\n",
> + nla_len(a),
> + sizeof(match->key->tun_opts));
> + return -EINVAL;
> + }
> +
> + if (nla_len(a) % 4 != 0) {
> + OVS_NLERR("Geneve option length is not "
> + "a multiple of 4 (len %d).\n",
> + nla_len(a));
> + return -EINVAL;
> + }
> +
> + /* We need to record the length of the options passed
> + * down, otherwise packets with the same format but
> + * additional options will be silently matched.
> + */
> + if (!is_mask) {
> + SW_FLOW_KEY_PUT(match, tun_opts_len,
> nla_len(a),
> + false);
> + SW_FLOW_KEY_PUT(match, tun_opts_len, 0xff,
> + true);
> + }
> +
> + SW_FLOW_KEY_MEMCPY_OFFSET(match,
> + (unsigned long)GENEVE_OPTS((struct
> sw_flow_key *)0,
> + nla_len(a)),
> + nla_data(a), nla_len(a), is_mask);
> + break;
> default:
> return -EINVAL;
> }
> @@ -423,8 +461,9 @@ static int ipv4_tun_from_nlattr(const struct nlattr *attr,
> }
>
> static int ipv4_tun_to_nlattr(struct sk_buff *skb,
> - const struct ovs_key_ipv4_tunnel *tun_key,
> - const struct ovs_key_ipv4_tunnel *output)
> + const struct ovs_key_ipv4_tunnel *output,
> + const struct geneve_opt *tun_opts,
> + int swkey_tun_opts_len, int out_tun_opts_len)
> {
> struct nlattr *nla;
>
> @@ -455,6 +494,9 @@ static int ipv4_tun_to_nlattr(struct sk_buff *skb,
> if ((output->tun_flags & TUNNEL_OAM) &&
> nla_put_flag(skb, OVS_TUNNEL_KEY_ATTR_OAM))
> return -EMSGSIZE;
> + if (out_tun_opts_len &&
> + nla_put(skb, OVS_TUNNEL_KEY_ATTR_GENEVE_OPTS,
> + swkey_tun_opts_len, tun_opts));
>
> nla_nest_end(skb, nla);
> return 0;
> @@ -916,9 +958,13 @@ int ovs_nla_put_flow(const struct sw_flow_key *swkey,
> if (nla_put_u32(skb, OVS_KEY_ATTR_PRIORITY, output->phy.priority))
> goto nla_put_failure;
>
> - if ((swkey->tun_key.ipv4_dst || is_mask) &&
> - ipv4_tun_to_nlattr(skb, &swkey->tun_key, &output->tun_key))
> - goto nla_put_failure;
> + if ((swkey->tun_key.ipv4_dst || is_mask)) {
> + if (ipv4_tun_to_nlattr(skb, &output->tun_key,
> + GENEVE_OPTS(output,
> swkey->tun_opts_len),
> + swkey->tun_opts_len,
> + output->tun_opts_len))
> + goto nla_put_failure;
> + }
>
> if (swkey->phy.in_port == DP_MAX_PORTS) {
> if (is_mask && (output->phy.in_port == 0xffff))
> @@ -1309,17 +1355,55 @@ static int validate_and_copy_set_tun(const struct
> nlattr *attr,
> if (err)
> return err;
>
> + if (key.tun_opts_len) {
> + struct geneve_opt *option = GENEVE_OPTS(&key,
> + key.tun_opts_len);
> + int opts_len = key.tun_opts_len;
> + bool crit_opt = false;
> +
> + while (opts_len > 0) {
> + int len;
> +
> + if (opts_len < sizeof(*option))
> + return -EINVAL;
> +
> + len = sizeof(*option) + option->length * 4;
> + if (len > opts_len)
> + return -EINVAL;
> +
> + crit_opt |= !!(option->type & GENEVE_CRIT_OPT_TYPE);
> +
> + option = (struct geneve_opt *)((u8 *)option + len);
> + opts_len -= len;
> + };
> +
> + key.tun_key.tun_flags |= crit_opt ? TUNNEL_CRIT_OPT : 0;
> + };
> +
> start = add_nested_action_start(sfa, OVS_ACTION_ATTR_SET);
> if (start < 0)
> return start;
>
> a = __add_action(sfa, OVS_KEY_ATTR_TUNNEL_INFO, NULL,
> - sizeof(*tun_info));
> + sizeof(*tun_info) + key.tun_opts_len);
> if (IS_ERR(a))
> return PTR_ERR(a);
>
> tun_info = nla_data(a);
> tun_info->tunnel = key.tun_key;
> + tun_info->options_len = key.tun_opts_len;
> +
> + if (tun_info->options_len) {
> + /* We need to store the options in the action itself since
> + * everything else will go away after flow setup. We can
> append
> + * it to tun_info and then point there.
> + */
> + tun_info->options = (struct geneve_opt *)(tun_info + 1);
> + memcpy(tun_info->options, GENEVE_OPTS(&key, key.tun_opts_len),
> + key.tun_opts_len);
> + } else {
> + tun_info->options = NULL;
> + }
>
> add_nested_action_end(*sfa, start);
>
> @@ -1611,7 +1695,9 @@ static int set_action_to_attr(const struct nlattr *a,
> struct sk_buff *skb)
> return -EMSGSIZE;
>
> err = ipv4_tun_to_nlattr(skb, &tun_info->tunnel,
> - &tun_info->tunnel);
> + tun_info->options,
> + tun_info->options_len,
> + tun_info->options_len);
> if (err)
> return err;
> nla_nest_end(skb, start);
> diff --git a/datapath/linux/Modules.mk b/datapath/linux/Modules.mk
> index 224eb02..46aa1f6 100644
> --- a/datapath/linux/Modules.mk
> +++ b/datapath/linux/Modules.mk
> @@ -63,6 +63,7 @@ openvswitch_headers += \
> linux/compat/include/net/dst.h \
> linux/compat/include/net/flow_keys.h \
> linux/compat/include/net/genetlink.h \
> + linux/compat/include/net/geneve.h \
> linux/compat/include/net/gre.h \
> linux/compat/include/net/inet_frag.h \
> linux/compat/include/net/ip.h \
> diff --git a/datapath/linux/compat/include/net/geneve.h
> b/datapath/linux/compat/include/net/geneve.h
> new file mode 100644
> index 0000000..2cb294f
> --- /dev/null
> +++ b/datapath/linux/compat/include/net/geneve.h
> @@ -0,0 +1,23 @@
> +#ifndef __NET_GENEVE_WRAPPER_H
> +#define __NET_GENEVE_WRAPPER_H 1
> +
> +/* Not yet upstream. */
> +#define GENEVE_CRIT_OPT_TYPE (1 << 7)
> +struct geneve_opt {
> + __be16 opt_class;
> + u8 type;
> +#ifdef __LITTLE_ENDIAN_BITFIELD
> + u8 length:5;
> + u8 r3:1;
> + u8 r2:1;
> + u8 r1:1;
> +#else
> + u8 r1:1;
> + u8 r2:1;
> + u8 r3:1;
> + u8 length:5;
> +#endif
> + u8 opt_data[];
> +};
> +
> +#endif
> diff --git a/datapath/linux/compat/include/net/ip_tunnels.h
> b/datapath/linux/compat/include/net/ip_tunnels.h
> index e2f3c30..c7a14ef 100644
> --- a/datapath/linux/compat/include/net/ip_tunnels.h
> +++ b/datapath/linux/compat/include/net/ip_tunnels.h
> @@ -47,5 +47,6 @@ int iptunnel_pull_header(struct sk_buff *skb, int hdr_len,
> __be16 inner_proto);
>
> /* Not yet upstream */
> #define TUNNEL_OAM __cpu_to_be16(0x0200)
> +#define TUNNEL_CRIT_OPT __cpu_to_be16(0x0400)
>
> #endif /* __NET_IP_TUNNELS_H */
> diff --git a/datapath/vport-geneve.c b/datapath/vport-geneve.c
> new file mode 100644
> index 0000000..a6e9287
> --- /dev/null
> +++ b/datapath/vport-geneve.c
> @@ -0,0 +1,464 @@
> +/*
> + * Copyright (c) 2014 Nicira, 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
> + */
> +
> +#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
> +
> +#include <linux/version.h>
> +
> +#include <linux/in.h>
> +#include <linux/ip.h>
> +#include <linux/net.h>
> +#include <linux/rculist.h>
> +#include <linux/udp.h>
> +
> +#include <net/geneve.h>
> +#include <net/icmp.h>
> +#include <net/ip.h>
> +#include <net/route.h>
> +#include <net/udp.h>
> +#include <net/vxlan.h>
> +#include <net/xfrm.h>
> +
> +#include "datapath.h"
> +#include "gso.h"
> +#include "vport.h"
> +
> +/*
> + * Geneve Header:
> + * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
> + * |Ver| Opt Len |O|C| Rsvd. | Protocol Type |
> + * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
> + * | Virtual Network Identifier (VNI) | Reserved |
> + * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
> + * | Variable Length Options |
> + * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
> + *
> + * Option Header:
> + * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
> + * | Option Class | Type |R|R|R| Length |
> + * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
> + * | Variable Option Data |
> + * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
> + */
> +
> +struct genevehdr {
> +#ifdef __LITTLE_ENDIAN_BITFIELD
> + u8 opt_len:6;
> + u8 ver:2;
> + u8 rsvd1:6;
> + u8 critical:1;
> + u8 oam:1;
> +#else
> + u8 ver:2;
> + u8 opt_len:6;
> + u8 oam:1;
> + u8 critical:1;
> + u8 rsvd1:6;
> +#endif
> + __be16 proto_type;
> + u8 vni[3];
> + u8 rsvd2;
> + struct geneve_opt options[];
> +};
> +
> +#define GENEVE_VER 0
> +
> +#define GENEVE_BASE_HLEN (sizeof(struct udphdr) + sizeof(struct genevehdr))
> +
> +/**
> + * struct geneve_port - Keeps track of open UDP ports
> + * @dst_port: Geneve UDP port number.
> + * @list: list element in @geneve_ports.
> + * @geneve_rcv_socket: The socket created for this port number.
> + * @name: vport name.
> + */
> +struct geneve_port {
> + __be16 dst_port;
> + struct list_head list;
> + struct socket *geneve_rcv_socket;
> + char name[IFNAMSIZ];
> +};
> +
> +static LIST_HEAD(geneve_ports);
> +
> +static inline struct geneve_port *geneve_vport(const struct vport *vport)
> +{
> + return vport_priv(vport);
> +}
> +
> +static struct geneve_port *geneve_find_port(struct net *net, __be16 port)
> +{
> + struct geneve_port *geneve_port;
> +
> + list_for_each_entry_rcu(geneve_port, &geneve_ports, list) {
> + if (geneve_port->dst_port == port &&
> + net_eq(sock_net(geneve_port->geneve_rcv_socket->sk), net))
> + return geneve_port;
> + }
> +
> + return NULL;
> +}
> +
> +static inline struct genevehdr *geneve_hdr(const struct sk_buff *skb)
> +{
> + return (struct genevehdr *)(udp_hdr(skb) + 1);
> +}
> +
> +/* Convert 64 bit tunnel ID to 24 bit VNI. */
> +static void tunnel_id_to_vni(__be64 tun_id, __u8 *vni)
> +{
> +#ifdef __BIG_ENDIAN
> + vni[0] = (__force __u8)(tun_id >> 16);
> + vni[1] = (__force __u8)(tun_id >> 8);
> + vni[2] = (__force __u8)tun_id;
> +#else
> + vni[0] = (__force __u8)((__force u64)tun_id >> 40);
> + vni[1] = (__force __u8)((__force u64)tun_id >> 48);
> + vni[2] = (__force __u8)((__force u64)tun_id >> 56);
> +#endif
> +}
> +
> +/* Convert 24 bit VNI to 64 bit tunnel ID. */
> +static __be64 vni_to_tunnel_id(__u8 *vni)
> +{
> +#ifdef __BIG_ENDIAN
> + return (vni[0] << 16) | (vni[1] << 8) | vni[2];
> +#else
> + return (__force __be64)(((__force u64)vni[0] << 40) |
> + ((__force u64)vni[1] << 48) |
> + ((__force u64)vni[2] << 56));
> +#endif
> +}
> +
> +
> +static void geneve_build_header(const struct vport *vport,
> + struct sk_buff *skb)
> +{
> + struct geneve_port *geneve_port = geneve_vport(vport);
> + struct udphdr *udph = udp_hdr(skb);
> + struct genevehdr *geneveh = (struct genevehdr *)(udph + 1);
> + const struct ovs_tunnel_info *tun_info = OVS_CB(skb)->tun_info;
> +
> + udph->dest = geneve_port->dst_port;
> + udph->source = vxlan_src_port(0, USHRT_MAX, skb);
> + udph->check = 0;
> + udph->len = htons(skb->len - skb_transport_offset(skb));
> +
> + geneveh->ver = GENEVE_VER;
> + geneveh->opt_len = tun_info->options_len / 4;
> + geneveh->oam = !!(tun_info->tunnel.tun_flags & TUNNEL_OAM);
> + geneveh->critical = !!(tun_info->tunnel.tun_flags & TUNNEL_CRIT_OPT);
> + geneveh->rsvd1 = 0;
> + geneveh->proto_type = htons(ETH_P_TEB);
> + tunnel_id_to_vni(tun_info->tunnel.tun_id, geneveh->vni);
> + geneveh->rsvd2 = 0;
> +
> + memcpy(geneveh->options, tun_info->options, tun_info->options_len);
> +}
> +
> +static int geneve_rcv(struct sock *sk, struct sk_buff *skb)
> +{
> + struct geneve_port *geneve_port;
> + struct genevehdr *geneveh;
> + int opts_len;
> + struct ovs_tunnel_info tun_info;
> + __be64 key;
> + __be16 flags;
> +
> +#if LINUX_VERSION_CODE < KERNEL_VERSION(3,16,0)
> + if (unlikely(udp_lib_checksum_complete(skb)))
> + goto error;
> +#endif
> +
> + if (unlikely(!pskb_may_pull(skb, GENEVE_BASE_HLEN)))
> + goto error;
> +
> + geneveh = geneve_hdr(skb);
> +
> + if (unlikely(geneveh->ver != GENEVE_VER))
> + goto error;
> +
> + if (unlikely(geneveh->proto_type != htons(ETH_P_TEB)))
> + goto error;
> +
> + geneve_port = geneve_find_port(dev_net(skb->dev), udp_hdr(skb)->dest);
I guess we will start using rcu_dereference_sk_user_data() after
uptreaming udp tunnels.
> + if (unlikely(!geneve_port))
> + goto error;
> +
> + opts_len = geneveh->opt_len * 4;
> + if (iptunnel_pull_header(skb, GENEVE_BASE_HLEN + opts_len,
> + htons(ETH_P_TEB)))
> + goto error;
> +
> + geneveh = geneve_hdr(skb);
> +
> + flags = TUNNEL_KEY |
> + (udp_hdr(skb)->check != 0 ? TUNNEL_CSUM : 0) |
> + (geneveh->oam ? TUNNEL_OAM : 0);
> +
I am not sure why TUNNEL_CRIT_OPT is not parsed here.
> + key = vni_to_tunnel_id(geneveh->vni);
> + ovs_flow_tun_info_init(&tun_info, ip_hdr(skb), key, flags,
> + geneveh->options, opts_len);
> +
> + ovs_vport_receive(vport_from_priv(geneve_port), skb, &tun_info);
> + goto out;
> +
> +error:
> + kfree_skb(skb);
> +out:
> + return 0;
> +}
> +
> +/* Arbitrary value. Irrelevant as long as it's not 0 since we set the
> handler. */
> +#define UDP_ENCAP_GENEVE 1
> +static int geneve_socket_init(struct geneve_port *geneve_port, struct net
> *net)
> +{
> + struct sockaddr_in sin;
> + int err;
> +
> + err = sock_create_kern(AF_INET, SOCK_DGRAM, 0,
> + &geneve_port->geneve_rcv_socket);
> + if (err)
> + goto error;
> +
> + /* release net ref. */
> + sk_change_net(geneve_port->geneve_rcv_socket->sk, net);
> +
> + sin.sin_family = AF_INET;
> + sin.sin_addr.s_addr = htonl(INADDR_ANY);
> + sin.sin_port = geneve_port->dst_port;
> +
> + err = kernel_bind(geneve_port->geneve_rcv_socket,
> + (struct sockaddr *)&sin, sizeof(struct
> sockaddr_in));
> + if (err)
> + goto error_sock;
> +
> + udp_sk(geneve_port->geneve_rcv_socket->sk)->encap_type =
> UDP_ENCAP_GENEVE;
> + udp_sk(geneve_port->geneve_rcv_socket->sk)->encap_rcv = geneve_rcv;
> +
> + udp_encap_enable();
> +
> + return 0;
> +
> +error_sock:
> + sk_release_kernel(geneve_port->geneve_rcv_socket->sk);
> +error:
> + pr_warn("cannot register geneve protocol handler: %d\n", err);
> + return err;
> +}
> +
> +static int geneve_get_options(const struct vport *vport,
> + struct sk_buff *skb)
> +{
> + struct geneve_port *geneve_port = geneve_vport(vport);
> +
> + if (nla_put_u16(skb, OVS_TUNNEL_ATTR_DST_PORT,
> + ntohs(geneve_port->dst_port)))
> + return -EMSGSIZE;
> + return 0;
> +}
> +
> +static void geneve_tnl_destroy(struct vport *vport)
> +{
> + struct geneve_port *geneve_port = geneve_vport(vport);
> +
> + list_del_rcu(&geneve_port->list);
> + /* Release socket */
> + sk_release_kernel(geneve_port->geneve_rcv_socket->sk);
> +
> + ovs_vport_deferred_free(vport);
> +}
> +
> +static struct vport *geneve_tnl_create(const struct vport_parms *parms)
> +{
> + struct net *net = ovs_dp_get_net(parms->dp);
> + struct nlattr *options = parms->options;
> + struct geneve_port *geneve_port;
> + struct vport *vport;
> + struct nlattr *a;
> + int err;
> + u16 dst_port;
> +
> + if (!options) {
> + err = -EINVAL;
> + goto error;
> + }
> +
> + a = nla_find_nested(options, OVS_TUNNEL_ATTR_DST_PORT);
> + if (a && nla_len(a) == sizeof(u16)) {
> + dst_port = nla_get_u16(a);
> + } else {
> + /* Require destination port from userspace. */
> + err = -EINVAL;
> + goto error;
> + }
> +
> + /* Verify if we already have a socket created for this port */
> + if (geneve_find_port(net, htons(dst_port))) {
> + err = -EEXIST;
> + goto error;
> + }
> +
> + vport = ovs_vport_alloc(sizeof(struct geneve_port),
> + &ovs_geneve_vport_ops, parms);
> + if (IS_ERR(vport))
> + return vport;
> +
> + geneve_port = geneve_vport(vport);
> + geneve_port->dst_port = htons(dst_port);
> + strncpy(geneve_port->name, parms->name, IFNAMSIZ);
> +
> + err = geneve_socket_init(geneve_port, net);
> + if (err)
> + goto error_free;
> +
> + list_add_tail_rcu(&geneve_port->list, &geneve_ports);
> + return vport;
> +
> +error_free:
> + ovs_vport_free(vport);
> +error:
> + return ERR_PTR(err);
> +}
> +
> +#if LINUX_VERSION_CODE < KERNEL_VERSION(3,12,0)
> +
> +static void geneve_fix_segment(struct sk_buff *skb)
> +{
> + struct udphdr *udph = udp_hdr(skb);
> +
> + udph->len = htons(skb->len - skb_transport_offset(skb));
> +}
> +
> +static int handle_offloads(struct sk_buff *skb)
> +{
> + if (skb_is_gso(skb))
> + OVS_GSO_CB(skb)->fix_segment = geneve_fix_segment;
> + else if (skb->ip_summed != CHECKSUM_PARTIAL)
> + skb->ip_summed = CHECKSUM_NONE;
> + return 0;
> +}
> +#else
> +static int handle_offloads(struct sk_buff *skb)
> +{
> + if (skb_is_gso(skb)) {
> + int err = skb_unclone(skb, GFP_ATOMIC);
> + if (unlikely(err))
> + return err;
> +
> + skb_shinfo(skb)->gso_type |= SKB_GSO_UDP_TUNNEL;
> + } else if (skb->ip_summed != CHECKSUM_PARTIAL)
> + skb->ip_summed = CHECKSUM_NONE;
> +
> + skb->encapsulation = 1;
> + return 0;
> +}
> +#endif
> +
> +static int geneve_send(struct vport *vport, struct sk_buff *skb)
> +{
> + struct ovs_key_ipv4_tunnel *tun_key = &OVS_CB(skb)->tun_info->tunnel;
> + int network_offset = skb_network_offset(skb);
> + struct rtable *rt;
> + int min_headroom;
> + __be32 saddr;
> + __be16 df;
> + int sent_len;
> + int err;
> +
> + if (unlikely(!OVS_CB(skb)->tun_info))
> + return -EINVAL;
> +
> + /* Route lookup */
> + saddr = tun_key->ipv4_src;
> + rt = find_route(ovs_dp_get_net(vport->dp),
> + &saddr, tun_key->ipv4_dst,
> + IPPROTO_UDP, tun_key->ipv4_tos,
> + skb->mark);
> + if (IS_ERR(rt)) {
> + err = PTR_ERR(rt);
> + goto error;
> + }
> +
> + min_headroom = LL_RESERVED_SPACE(rt_dst(rt).dev) +
> rt_dst(rt).header_len
> + + GENEVE_BASE_HLEN + sizeof(struct iphdr)
> + + (vlan_tx_tag_present(skb) ? VLAN_HLEN : 0);
> +
we need to add options_len to headroom calculation.
> + if (skb_headroom(skb) < min_headroom || skb_header_cloned(skb)) {
> + int head_delta = SKB_DATA_ALIGN(min_headroom -
> + skb_headroom(skb) +
> + 16);
> +
> + err = pskb_expand_head(skb, max_t(int, head_delta, 0),
> + 0, GFP_ATOMIC);
> + if (unlikely(err))
> + goto err_free_rt;
> + }
> +
> + if (vlan_tx_tag_present(skb)) {
> + if (unlikely(!__vlan_put_tag(skb,
> + skb->vlan_proto,
> + vlan_tx_tag_get(skb)))) {
> + err = -ENOMEM;
> + goto err_free_rt;
> + }
> + vlan_set_tci(skb, 0);
> + }
> +
> + skb_reset_inner_headers(skb);
> +
> + __skb_push(skb, GENEVE_BASE_HLEN +
> OVS_CB(skb)->tun_info->options_len);
> + skb_reset_transport_header(skb);
> +
> + geneve_build_header(vport, skb);
> +
> + /* Offloading */
> + err = handle_offloads(skb);
> + if (err)
> + goto err_free_rt;
> +
> + df = tun_key->tun_flags & TUNNEL_DONT_FRAGMENT ? htons(IP_DF) : 0;
> +
> + sent_len = iptunnel_xmit(rt, skb,
> + saddr, tun_key->ipv4_dst,
> + IPPROTO_UDP, tun_key->ipv4_tos,
> + tun_key->ipv4_ttl,
> + df, false);
> +
> + return sent_len > 0 ? sent_len + network_offset : sent_len;
> +
> +err_free_rt:
> + ip_rt_put(rt);
> +error:
> + return err;
> +}
> +
> +static const char *geneve_get_name(const struct vport *vport)
> +{
> + struct geneve_port *geneve_port = geneve_vport(vport);
> + return geneve_port->name;
> +}
> +
> +const struct vport_ops ovs_geneve_vport_ops = {
> + .type = OVS_VPORT_TYPE_GENEVE,
> + .create = geneve_tnl_create,
> + .destroy = geneve_tnl_destroy,
> + .get_name = geneve_get_name,
> + .get_options = geneve_get_options,
> + .send = geneve_send,
> +};
> diff --git a/datapath/vport-gre.c b/datapath/vport-gre.c
> index f30f090..d2a2602 100644
> --- a/datapath/vport-gre.c
> +++ b/datapath/vport-gre.c
> @@ -111,7 +111,7 @@ static int gre_rcv(struct sk_buff *skb,
>
> key = key_to_tunnel_id(tpi->key, tpi->seq);
> ovs_flow_tun_info_init(&tun_info, ip_hdr(skb), key,
> - filter_tnl_flags(tpi->flags));
> + filter_tnl_flags(tpi->flags), NULL, 0);
>
> ovs_vport_receive(vport, skb, &tun_info);
> return PACKET_RCVD;
> diff --git a/datapath/vport-lisp.c b/datapath/vport-lisp.c
> index dbad387..64925b8 100644
> --- a/datapath/vport-lisp.c
> +++ b/datapath/vport-lisp.c
> @@ -242,7 +242,7 @@ static int lisp_rcv(struct sock *sk, struct sk_buff *skb)
>
> /* Save outer tunnel values */
> iph = ip_hdr(skb);
> - ovs_flow_tun_info_init(&tun_info, iph, key, TUNNEL_KEY);
> + ovs_flow_tun_info_init(&tun_info, iph, key, TUNNEL_KEY, NULL, 0);
>
> /* Drop non-IP inner packets */
> inner_iph = (struct iphdr *)(lisph + 1);
> diff --git a/datapath/vport-vxlan.c b/datapath/vport-vxlan.c
> index 41c1756..8a08af8 100644
> --- a/datapath/vport-vxlan.c
> +++ b/datapath/vport-vxlan.c
> @@ -68,7 +68,7 @@ static void vxlan_rcv(struct vxlan_sock *vs, struct sk_buff
> *skb, __be32 vx_vni)
> /* Save outer tunnel values */
> iph = ip_hdr(skb);
> key = cpu_to_be64(ntohl(vx_vni) >> 8);
> - ovs_flow_tun_info_init(&tun_info, iph, key, TUNNEL_KEY);
> + ovs_flow_tun_info_init(&tun_info, iph, key, TUNNEL_KEY, NULL, 0);
>
> ovs_vport_receive(vport, skb, &tun_info);
> }
> diff --git a/datapath/vport.c b/datapath/vport.c
> index 5fce377..02ccc89 100644
> --- a/datapath/vport.c
> +++ b/datapath/vport.c
> @@ -43,6 +43,7 @@ static void ovs_vport_record_error(struct vport *,
> static const struct vport_ops *vport_ops_list[] = {
> &ovs_netdev_vport_ops,
> &ovs_internal_vport_ops,
> + &ovs_geneve_vport_ops,
> #if IS_ENABLED(CONFIG_NET_IPGRE_DEMUX)
> &ovs_gre_vport_ops,
> &ovs_gre64_vport_ops,
> diff --git a/datapath/vport.h b/datapath/vport.h
> index c02daf5..bdd9a89 100644
> --- a/datapath/vport.h
> +++ b/datapath/vport.h
> @@ -217,6 +217,7 @@ void ovs_vport_receive(struct vport *, struct sk_buff *,
> * add yours to the list at the top of vport.c. */
> extern const struct vport_ops ovs_netdev_vport_ops;
> extern const struct vport_ops ovs_internal_vport_ops;
> +extern const struct vport_ops ovs_geneve_vport_ops;
> extern const struct vport_ops ovs_gre_vport_ops;
> extern const struct vport_ops ovs_gre64_vport_ops;
> extern const struct vport_ops ovs_vxlan_vport_ops;
> diff --git a/include/linux/openvswitch.h b/include/linux/openvswitch.h
> index 57d40e3..4f84045 100644
> --- a/include/linux/openvswitch.h
> +++ b/include/linux/openvswitch.h
> @@ -215,6 +215,7 @@ enum ovs_vport_type {
> OVS_VPORT_TYPE_INTERNAL, /* network device implemented by datapath */
> OVS_VPORT_TYPE_GRE, /* GRE tunnel. */
> OVS_VPORT_TYPE_VXLAN, /* VXLAN tunnel */
> + OVS_VPORT_TYPE_GENEVE = 6, /* Geneve tunnel */
> OVS_VPORT_TYPE_GRE64 = 104, /* GRE tunnel with 64-bit keys */
> OVS_VPORT_TYPE_LISP = 105, /* LISP tunnel */
> __OVS_VPORT_TYPE_MAX
> @@ -341,9 +342,9 @@ enum ovs_tunnel_key_attr {
> OVS_TUNNEL_KEY_ATTR_DONT_FRAGMENT, /* No argument, set DF. */
> OVS_TUNNEL_KEY_ATTR_CSUM, /* No argument. CSUM packet.
> */
> OVS_TUNNEL_KEY_ATTR_OAM, /* No argument, OAM frame. */
> + OVS_TUNNEL_KEY_ATTR_GENEVE_OPTS, /* Array of Geneve options */
> __OVS_TUNNEL_KEY_ATTR_MAX
> };
> -
> #define OVS_TUNNEL_KEY_ATTR_MAX (__OVS_TUNNEL_KEY_ATTR_MAX - 1)
>
> /**
> diff --git a/lib/dpif-linux.c b/lib/dpif-linux.c
> index 63e66f3..2f03a2f 100644
> --- a/lib/dpif-linux.c
> +++ b/lib/dpif-linux.c
> @@ -579,6 +579,9 @@ get_vport_type(const struct dpif_linux_vport *vport)
> case OVS_VPORT_TYPE_INTERNAL:
> return "internal";
>
> + case OVS_VPORT_TYPE_GENEVE:
> + return "geneve";
> +
> case OVS_VPORT_TYPE_GRE:
> return "gre";
>
> @@ -610,6 +613,8 @@ netdev_to_ovs_vport_type(const struct netdev *netdev)
> return OVS_VPORT_TYPE_NETDEV;
> } else if (!strcmp(type, "internal")) {
> return OVS_VPORT_TYPE_INTERNAL;
> + } else if (!strcmp(type, "geneve")) {
> + return OVS_VPORT_TYPE_GENEVE;
> } else if (strstr(type, "gre64")) {
> return OVS_VPORT_TYPE_GRE64;
> } else if (strstr(type, "gre")) {
> diff --git a/lib/netdev-vport.c b/lib/netdev-vport.c
> index 4dca091..2c20622 100644
> --- a/lib/netdev-vport.c
> +++ b/lib/netdev-vport.c
> @@ -42,6 +42,7 @@
>
> VLOG_DEFINE_THIS_MODULE(netdev_vport);
>
> +#define GENEVE_DST_PORT 6081
> #define VXLAN_DST_PORT 4789
> #define LISP_DST_PORT 4341
>
> @@ -133,7 +134,8 @@ netdev_vport_needs_dst_port(const struct netdev *dev)
> const char *type = netdev_get_type(dev);
>
> return (class->get_config == get_tunnel_config &&
> - (!strcmp("vxlan", type) || !strcmp("lisp", type)));
> + (!strcmp("geneve", type) || !strcmp("vxlan", type) ||
> + !strcmp("lisp", type)));
> }
>
> const char *
> @@ -490,12 +492,15 @@ set_tunnel_config(struct netdev *dev_, const struct
> smap *args)
> }
> }
>
> - /* Add a default destination port for VXLAN if none specified. */
> + /* Add a default destination port for tunnel ports if none specified. */
> + if (!strcmp(type, "geneve") && !tnl_cfg.dst_port) {
> + tnl_cfg.dst_port = htons(GENEVE_DST_PORT);
> + }
> +
> if (!strcmp(type, "vxlan") && !tnl_cfg.dst_port) {
> tnl_cfg.dst_port = htons(VXLAN_DST_PORT);
> }
>
> - /* Add a default destination port for LISP if none specified. */
> if (!strcmp(type, "lisp") && !tnl_cfg.dst_port) {
> tnl_cfg.dst_port = htons(LISP_DST_PORT);
> }
> @@ -623,7 +628,8 @@ get_tunnel_config(const struct netdev *dev, struct smap
> *args)
> uint16_t dst_port = ntohs(tnl_cfg.dst_port);
> const char *type = netdev_get_type(dev);
>
> - if ((!strcmp("vxlan", type) && dst_port != VXLAN_DST_PORT) ||
> + if ((!strcmp("geneve", type) && dst_port != GENEVE_DST_PORT) ||
> + (!strcmp("vxlan", type) && dst_port != VXLAN_DST_PORT) ||
> (!strcmp("lisp", type) && dst_port != LISP_DST_PORT)) {
> smap_add_format(args, "dst_port", "%d", dst_port);
> }
> @@ -824,6 +830,8 @@ void
> netdev_vport_tunnel_register(void)
> {
> static const struct vport_class vport_classes[] = {
> + TUNNEL_CLASS("geneve", "geneve_system"),
> + TUNNEL_CLASS("ipsec_geneve", "geneve_system"),
> TUNNEL_CLASS("gre", "gre_system"),
> TUNNEL_CLASS("ipsec_gre", "gre_system"),
> TUNNEL_CLASS("gre64", "gre64_system"),
> diff --git a/lib/odp-util.c b/lib/odp-util.c
> index 8f71c7c..2807474 100644
> --- a/lib/odp-util.c
> +++ b/lib/odp-util.c
> @@ -833,12 +833,46 @@ tunnel_key_attr_len(int type)
> case OVS_TUNNEL_KEY_ATTR_DONT_FRAGMENT: return 0;
> case OVS_TUNNEL_KEY_ATTR_CSUM: return 0;
> case OVS_TUNNEL_KEY_ATTR_OAM: return 0;
> + case OVS_TUNNEL_KEY_ATTR_GENEVE_OPTS: return -2;
> case __OVS_TUNNEL_KEY_ATTR_MAX:
> return -1;
> }
> return -1;
> }
>
> +#define GENEVE_OPT(class, type) ((OVS_FORCE uint32_t)(class) << 8 | (type))
> +static int
> +parse_geneve_opts(const struct nlattr *attr, struct flow_tnl *tun)
> +{
> + int opts_len = nl_attr_get_size(attr);
> + const struct geneve_opt *opt = nl_attr_get(attr);
> +
> + while (opts_len > 0) {
> + int len;
> +
> + if (opts_len < sizeof(*opt)) {
> + return -EINVAL;
> + }
> +
> + len = sizeof(*opt) + opt->length * 4;
> + if (len > opts_len) {
> + return -EINVAL;
> + }
> +
> + switch (GENEVE_OPT(opt->opt_class, opt->type)) {
> + default:
> + if (opt->type & GENEVE_CRIT_OPT_TYPE) {
> + return -EINVAL;
> + }
> + };
> +
> + opt = (struct geneve_opt *)((uint8_t *)opt + len);
> + opts_len -= len;
> + };
> +
> + return 0;
> +}
> +
> enum odp_key_fitness
> odp_tun_key_from_attr(const struct nlattr *attr, struct flow_tnl *tun)
> {
> @@ -883,6 +917,15 @@ odp_tun_key_from_attr(const struct nlattr *attr, struct
> flow_tnl *tun)
> case OVS_TUNNEL_KEY_ATTR_OAM:
> tun->flags |= FLOW_TNL_F_OAM;
> break;
> + case OVS_TUNNEL_KEY_ATTR_GENEVE_OPTS: {
> + if (parse_geneve_opts(a, tun)) {
> + return ODP_FIT_ERROR;
> + }
> + /* It is necessary to reproduce options exactly (including order)
> + * so it's easiest to just echo them back. */
> + unknown = true;
> + break;
> + }
> default:
> /* Allow this to show up as unexpected, if there are unknown
> * tunnel attribute, eventually resulting in ODP_FIT_TOO_MUCH. */
> diff --git a/lib/packets.h b/lib/packets.h
> index 4575dd0..c04e3bb 100644
> --- a/lib/packets.h
> +++ b/lib/packets.h
> @@ -674,6 +674,24 @@ static inline bool dl_type_is_ip_any(ovs_be16 dl_type)
> || dl_type == htons(ETH_TYPE_IPV6);
> }
>
> +#define GENEVE_CRIT_OPT_TYPE (1 << 7)
> +struct geneve_opt {
> + ovs_be16 opt_class;
> + uint8_t type;
> +#ifdef LITTLE_ENDIAN
> + uint8_t length:5;
> + uint8_t r3:1;
> + uint8_t r2:1;
> + uint8_t r1:1;
> +#else
> + uint8_t r1:1;
> + uint8_t r2:1;
> + uint8_t r3:1;
> + uint8_t length:5;
> +#endif
> + uint8_t opt_data[];
> +};
> +
> void format_ipv6_addr(char *addr_str, const struct in6_addr *addr);
> void print_ipv6_addr(struct ds *string, const struct in6_addr *addr);
> void print_ipv6_masked(struct ds *string, const struct in6_addr *addr,
> diff --git a/tests/ovs-vsctl.at b/tests/ovs-vsctl.at
> index 440bf1a..1e9c278 100644
> --- a/tests/ovs-vsctl.at
> +++ b/tests/ovs-vsctl.at
> @@ -1203,6 +1203,7 @@ m4_foreach(
> [reserved_name],
> [[ovs-netdev],
> [ovs-dummy],
> +[geneve_system],
> [gre_system],
> [gre64_system],
> [lisp_system],
> @@ -1233,11 +1234,14 @@ OVS_VSWITCHD_START([add-port br0 p1 -- set Interface
> p1 type=gre \
> -- add-port br0 p3 -- set Interface p3 type=lisp \
> options:remote_ip=2.2.2.2 ofport_request=3 \
> -- add-port br0 p4 -- set Interface p4 type=vxlan \
> - options:remote_ip=2.2.2.2 ofport_request=4])
> + options:remote_ip=2.2.2.2 ofport_request=4 \
> + -- add-port br0 p5 -- set Interface p5 type=geneve \
> + options:remote_ip=2.2.2.2 ofport_request=5])
>
> # Test creating all reserved tunnel port names
> m4_foreach(
> [reserved_name],
> +[geneve_system],
> [[gre_system],
> [gre64_system],
> [lisp_system],
> diff --git a/tests/tunnel.at b/tests/tunnel.at
> index aa16d58..2ae8179 100644
> --- a/tests/tunnel.at
> +++ b/tests/tunnel.at
> @@ -310,6 +310,18 @@ Datapath actions: drop
> OVS_VSWITCHD_STOP
> AT_CLEANUP
>
> +AT_SETUP([tunnel - Geneve])
> +OVS_VSWITCHD_START([add-port br0 p1 -- set Interface p1 type=geneve \
> + options:remote_ip=1.1.1.1 ofport_request=1
> options:dst_port=5000])
> +
> +AT_CHECK([ovs-appctl dpif/show | tail -n +3], [0], [dnl
> + br0 65534/100: (dummy)
> + p1 1/5000: (geneve: dst_port=5000, remote_ip=1.1.1.1)
> +])
> +
> +OVS_VSWITCHD_STOP
> +AT_CLEANUP
> +
> AT_SETUP([tunnel - VXLAN])
> OVS_VSWITCHD_START([add-port br0 p1 -- set Interface p1 type=vxlan \
> options:remote_ip=1.1.1.1 ofport_request=1])
> diff --git a/vswitchd/vswitch.xml b/vswitchd/vswitch.xml
> index acefed2..c3e10fb 100644
> --- a/vswitchd/vswitch.xml
> +++ b/vswitchd/vswitch.xml
> @@ -1386,6 +1386,16 @@
> <dt><code>tap</code></dt>
> <dd>A TUN/TAP device managed by Open vSwitch.</dd>
>
> + <dt><code>geneve</code></dt>
> + <dd>
> + An Ethernet over Geneve
> (<code>http://tools.ietf.org/html/draft-gross-geneve-00</code>)
> + IPv4 tunnel.
> +
> + Geneve supports options as a means to transport additional
> metadata,
> + however, currently only the 24-bit VNI is supported. This is
> planned
> + to be extended in the future.
> + </dd>
> +
> <dt><code>gre</code></dt>
> <dd>
> An Ethernet over RFC 2890 Generic Routing Encapsulation over IPv4
> @@ -1458,8 +1468,9 @@
> <group title="Tunnel Options">
> <p>
> These options apply to interfaces with <ref column="type"/> of
> - <code>gre</code>, <code>ipsec_gre</code>, <code>gre64</code>,
> - <code>ipsec_gre64</code>, <code>vxlan</code>, and <code>lisp</code>.
> + <code>geneve</code>, <code>gre</code>, <code>ipsec_gre</code>,
> + <code>gre64</code>, <code>ipsec_gre64</code>, <code>vxlan</code>,
> + and <code>lisp</code>.
> </p>
>
> <p>
> --
Otherwise Looks good.
Acked-by: Pravin B Shelar <[email protected]>
> 1.9.1
>
> _______________________________________________
> dev mailing list
> [email protected]
> http://openvswitch.org/mailman/listinfo/dev
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