git am warning:
Applying: Extend OVS IPFIX exporter to export tunnel headers
/home/pravin/ovs/w8/.git/rebase-apply/patch:143: trailing whitespace.
if (out_tun_key)
/home/pravin/ovs/w8/.git/rebase-apply/patch:236: space before tab in indent.
const struct udphdr * udp_hdr = tph;
/home/pravin/ovs/w8/.git/rebase-apply/patch:433: trailing whitespace.
/home/pravin/ovs/w8/.git/rebase-apply/patch:594: trailing whitespace.
/home/pravin/ovs/w8/.git/rebase-apply/patch:695: trailing whitespace.
warning: squelched 21 whitespace errors
warning: 26 lines add whitespace errors.
On Wed, Jul 16, 2014 at 12:55 AM, Wenyu Zhang <[email protected]> wrote:
> Extend IPFIX exporter to export tunnel headers when both input and output
> of the port.
> Add three other_config options in IPFIX table: enable-input-sampling,
> enable-output-sampling and enable-tunnel-sampling, to control whether
> sampling tunnel info, on which direction (input or output).
> Insert sampling action before output action and the output tunnel port
> is sent to datapath in the sampling action.
> Make datapath collect output tunnel info and send it back to userpace
> in upcall message with a new additional optional attribute.
> Add a tunnel ports map to make the tunnel port lookup faster in sampling
> upcalls in IPFIX exporter. Make the IPFIX exporter generate IPFIX template
> sets with enterprise elements for the tunnel info, save the tunnel info
> in IPFIX cache entries, and send IPFIX DATA with tunnel info.
> Add flowDirection element in IPFIX templates.
>
> Signed-off-by: Wenyu Zhang <[email protected]>
> Acked-by: Romain Lenglet <[email protected]>
> ---
> datapath/actions.c | 16 +-
> datapath/datapath.c | 42 +++-
> datapath/datapath.h | 2 +
> datapath/flow.h | 24 +-
> datapath/flow_netlink.c | 58 ++++-
> datapath/flow_netlink.h | 2 +
> datapath/vport-geneve.c | 63 ++++-
> datapath/vport-gre.c | 67 ++++-
> datapath/vport-lisp.c | 67 ++++-
> datapath/vport-vxlan.c | 71 +++++-
> datapath/vport.h | 4 +
> include/linux/openvswitch.h | 21 +-
> lib/dpif-linux.c | 2 +
> lib/dpif.h | 1 +
> lib/odp-util.c | 183 +++++++++-----
> lib/odp-util.h | 2 +
> lib/packets.h | 9 +-
> ofproto/automake.mk | 4 +
> ofproto/ipfix-enterprise-entities.def | 19 ++
> ofproto/ofproto-dpif-ipfix.c | 444
> ++++++++++++++++++++++++++++++---
> ofproto/ofproto-dpif-ipfix.h | 14 +-
> ofproto/ofproto-dpif-upcall.c | 20 +-
> ofproto/ofproto-dpif-xlate.c | 51 +++-
> ofproto/ofproto-dpif.c | 20 ++
> ofproto/ofproto.h | 3 +
> ofproto/tunnel.c | 4 +
> tests/odp.at | 9 +-
> utilities/ovs-vsctl.8.in | 8 +-
> vswitchd/bridge.c | 9 +
> vswitchd/vswitch.ovsschema | 5 +-
> vswitchd/vswitch.xml | 27 ++
> 31 files changed, 1097 insertions(+), 174 deletions(-)
> create mode 100644 ofproto/ipfix-enterprise-entities.def
>
> diff --git a/datapath/actions.c b/datapath/actions.c
> index 39a21f4..226b849 100644
> --- a/datapath/actions.c
> +++ b/datapath/actions.c
...
> static inline void ovs_flow_tun_info_init(struct ovs_tunnel_info *tun_info,
> - const struct iphdr *iph, __be64
> tun_id,
> + const struct iphdr *iph, const void
> *tph,
> + __be64 tun_id,
> __be16 tun_flags,
> struct geneve_opt *opts,
> u8 opts_len)
> @@ -79,6 +82,21 @@ static inline void ovs_flow_tun_info_init(struct
> ovs_tunnel_info *tun_info,
> tun_info->tunnel.ipv4_ttl = iph->ttl;
> tun_info->tunnel.tun_flags = tun_flags;
>
> + /* For the tunnel types on the top of IPsec,the tp_src and tp_dst of
> + * the upper tunnel are used.
> + * E.g: GRE over IPSEC, the tp_src and tp_port are zero.
> + */
> + if (tph &&
> + (iph->protocol == IPPROTO_UDP ||
> + iph->protocol == IPPROTO_TCP)) {
> + const struct udphdr * udp_hdr = tph;
> + tun_info->tunnel.tp_src = udp_hdr->source;
> + tun_info->tunnel.tp_dst = udp_hdr->dest;
> + } else {
> + tun_info->tunnel.tp_src = 0;
> + tun_info->tunnel.tp_dst = 0;
> + }
> +
Can you pass source port and dst post to to this function, so that we
can avoid these checks this function.
> /* clear struct padding. */
> memset((unsigned char *) &tun_info->tunnel + OVS_TUNNEL_KEY_SIZE, 0,
> sizeof(tun_info->tunnel) - OVS_TUNNEL_KEY_SIZE);
> diff --git a/datapath/flow_netlink.c b/datapath/flow_netlink.c
> index 5f975a1..1550daa 100644
> --- a/datapath/flow_netlink.c
....
>
> +static int geneve_get_out_tun_info(struct vport *vport, struct sk_buff *skb,
> + struct ovs_tunnel_info *out_tun_info)
> +{
> + struct geneve_port *geneve_port = geneve_vport(vport);
> + struct ovs_key_ipv4_tunnel *tun_key;
> + struct ovs_key_ipv4_tunnel *out_tun_key = &out_tun_info->tunnel;
> + struct rtable *rt;
> + __be32 saddr;
> + int err = 0;
> +
> +
> + if (unlikely(!OVS_CB(skb)->tun_info))
> + return -EINVAL;
> +
> + tun_key = &OVS_CB(skb)->tun_info->tunnel;
> +
> + /* 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;
> + }
> + ip_rt_put(rt);
> +
> + memset(out_tun_info, 0, sizeof(*out_tun_key));
> + /* Now the tun_key should contain the output tun key*/
> + out_tun_key->tun_flags |= TUNNEL_KEY;
> + out_tun_key->tun_id = tun_key->tun_id;
> + out_tun_key->ipv4_src = saddr;
> + out_tun_key->ipv4_dst = tun_key->ipv4_dst;
> + out_tun_key->ipv4_tos = tun_key->ipv4_tos;
> + out_tun_key->ipv4_ttl = tun_key->ipv4_ttl;
> + /* Get tp_src and tp_dst, refert to geneve_build_header() */
> + out_tun_key->tp_src = vxlan_src_port(1, USHRT_MAX, skb);
> + out_tun_key->tp_dst = inet_sport(geneve_port->sock->sk);
> + /* Set GENEVE's option */
> + out_tun_info->options = OVS_CB(skb)->tun_info->options;
> + out_tun_info->options_len = OVS_CB(skb)->tun_info->options_len;
> +
> +error:
> + return err;
> +}
> +
> 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,
> + .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,
> + .get_out_tun_info = geneve_get_out_tun_info,
> };
geneve_get_out_tun_info(), gre_get_out_tun_info(),
vxlan_get_out_tun_info(), lisp_get_out_tun_info() has basically same
code. Can you write one function then call that from all of these
functions?
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