[ovs-dev] [PATCH v2 01/15] netdev-vport: Factor-out tunnel Push-pop code into separate module.
Pravin B Shelar
pshelar at ovn.org
Fri Apr 22 01:54:16 UTC 2016
It is better to move tunnel push-pop action specific functions into
separate module.
Signed-off-by: Pravin B Shelar <pshelar at ovn.org>
---
lib/automake.mk | 3 +
lib/netdev-native-tnl.c | 641 +++++++++++++++++++++++++++++++++++++++++++
lib/netdev-native-tnl.h | 108 ++++++++
lib/netdev-provider.h | 2 +-
lib/netdev-vport-private.h | 63 +++++
lib/netdev-vport.c | 664 +--------------------------------------------
6 files changed, 820 insertions(+), 661 deletions(-)
create mode 100644 lib/netdev-native-tnl.c
create mode 100644 lib/netdev-native-tnl.h
create mode 100644 lib/netdev-vport-private.h
diff --git a/lib/automake.mk b/lib/automake.mk
index 1ec2115..a3c3464 100644
--- a/lib/automake.mk
+++ b/lib/automake.mk
@@ -126,6 +126,7 @@ lib_libopenvswitch_la_SOURCES = \
lib/netdev-provider.h \
lib/netdev-vport.c \
lib/netdev-vport.h \
+ lib/netdev-vport-private.h \
lib/netdev.c \
lib/netdev.h \
lib/netflow.h \
@@ -249,6 +250,8 @@ lib_libopenvswitch_la_SOURCES = \
lib/tnl-neigh-cache.h \
lib/tnl-ports.c \
lib/tnl-ports.h \
+ lib/netdev-native-tnl.c \
+ lib/netdev-native-tnl.h \
lib/token-bucket.c \
lib/tun-metadata.c \
lib/tun-metadata.h \
diff --git a/lib/netdev-native-tnl.c b/lib/netdev-native-tnl.c
new file mode 100644
index 0000000..b52b068
--- /dev/null
+++ b/lib/netdev-native-tnl.c
@@ -0,0 +1,641 @@
+/*
+ * Copyright (c) 2016 Nicira, Inc.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at:
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include <config.h>
+
+#include <errno.h>
+#include <fcntl.h>
+#include <sys/socket.h>
+#include <net/if.h>
+#include <netinet/ip6.h>
+#include <sys/ioctl.h>
+
+#include <errno.h>
+#include <stdlib.h>
+#include <sys/time.h>
+
+#include "openvswitch/list.h"
+#include "byte-order.h"
+#include "csum.h"
+#include "daemon.h"
+#include "dirs.h"
+#include "dpif.h"
+#include "dp-packet.h"
+#include "entropy.h"
+#include "flow.h"
+#include "hash.h"
+#include "hmap.h"
+#include "id-pool.h"
+#include "netdev-provider.h"
+#include "netdev-vport.h"
+#include "netdev-vport-private.h"
+#include "odp-netlink.h"
+#include "dp-packet.h"
+#include "ovs-router.h"
+#include "packets.h"
+#include "poll-loop.h"
+#include "random.h"
+#include "route-table.h"
+#include "shash.h"
+#include "socket-util.h"
+#include "timeval.h"
+#include "netdev-native-tnl.h"
+#include "openvswitch/vlog.h"
+#include "unaligned.h"
+#include "unixctl.h"
+#include "util.h"
+
+VLOG_DEFINE_THIS_MODULE(native_tnl);
+static struct vlog_rate_limit err_rl = VLOG_RATE_LIMIT_INIT(60, 5);
+
+#define VXLAN_HLEN (sizeof(struct udp_header) + \
+ sizeof(struct vxlanhdr))
+
+#define GENEVE_BASE_HLEN (sizeof(struct udp_header) + \
+ sizeof(struct genevehdr))
+
+uint16_t tnl_udp_port_min = 32768;
+uint16_t tnl_udp_port_max = 61000;
+
+void *
+ip_extract_tnl_md(struct dp_packet *packet, struct flow_tnl *tnl,
+ unsigned int *hlen)
+{
+ void *nh;
+ struct ip_header *ip;
+ struct ovs_16aligned_ip6_hdr *ip6;
+ void *l4;
+ int l3_size;
+
+ nh = dp_packet_l3(packet);
+ ip = nh;
+ ip6 = nh;
+ l4 = dp_packet_l4(packet);
+
+ if (!nh || !l4) {
+ return NULL;
+ }
+
+ *hlen = sizeof(struct eth_header);
+
+ l3_size = dp_packet_size(packet) -
+ ((char *)nh - (char *)dp_packet_data(packet));
+
+ if (IP_VER(ip->ip_ihl_ver) == 4) {
+
+ ovs_be32 ip_src, ip_dst;
+
+ if (csum(ip, IP_IHL(ip->ip_ihl_ver) * 4)) {
+ VLOG_WARN_RL(&err_rl, "ip packet has invalid checksum");
+ return NULL;
+ }
+
+ if (ntohs(ip->ip_tot_len) > l3_size) {
+ VLOG_WARN_RL(&err_rl, "ip packet is truncated (IP length %d, actual %d)",
+ ntohs(ip->ip_tot_len), l3_size);
+ return NULL;
+ }
+ if (IP_IHL(ip->ip_ihl_ver) * 4 > sizeof(struct ip_header)) {
+ VLOG_WARN_RL(&err_rl, "ip options not supported on tunnel packets "
+ "(%d bytes)", IP_IHL(ip->ip_ihl_ver) * 4);
+ return NULL;
+ }
+
+ ip_src = get_16aligned_be32(&ip->ip_src);
+ ip_dst = get_16aligned_be32(&ip->ip_dst);
+
+ tnl->ip_src = ip_src;
+ tnl->ip_dst = ip_dst;
+ tnl->ip_tos = ip->ip_tos;
+ tnl->ip_ttl = ip->ip_ttl;
+
+ *hlen += IP_HEADER_LEN;
+
+ } else if (IP_VER(ip->ip_ihl_ver) == 6) {
+
+ memcpy(tnl->ipv6_src.s6_addr, ip6->ip6_src.be16, sizeof ip6->ip6_src);
+ memcpy(tnl->ipv6_dst.s6_addr, ip6->ip6_dst.be16, sizeof ip6->ip6_dst);
+ tnl->ip_tos = 0;
+ tnl->ip_ttl = ip6->ip6_hlim;
+
+ *hlen += IPV6_HEADER_LEN;
+
+ } else {
+ VLOG_WARN_RL(&err_rl, "ipv4 packet has invalid version (%d)",
+ IP_VER(ip->ip_ihl_ver));
+ return NULL;
+ }
+
+ return l4;
+}
+
+/* Pushes the 'size' bytes of 'header' into the headroom of 'packet',
+ * reallocating the packet if necessary. 'header' should contain an Ethernet
+ * header, followed by an IPv4 header (without options), and an L4 header.
+ *
+ * This function sets the IP header's ip_tot_len field (which should be zeroed
+ * as part of 'header') and puts its value into '*ip_tot_size' as well. Also
+ * updates IP header checksum.
+ *
+ * Return pointer to the L4 header added to 'packet'. */
+void *
+push_ip_header(struct dp_packet *packet,
+ const void *header, int size, int *ip_tot_size)
+{
+ struct eth_header *eth;
+ struct ip_header *ip;
+ struct ovs_16aligned_ip6_hdr *ip6;
+
+ eth = dp_packet_push_uninit(packet, size);
+ *ip_tot_size = dp_packet_size(packet) - sizeof (struct eth_header);
+
+ memcpy(eth, header, size);
+
+ if (is_header_ipv6(header)) {
+ ip6 = ipv6_hdr(eth);
+ *ip_tot_size -= IPV6_HEADER_LEN;
+ ip6->ip6_plen = htons(*ip_tot_size);
+ return ip6 + 1;
+ } else {
+ ip = ip_hdr(eth);
+ ip->ip_tot_len = htons(*ip_tot_size);
+ ip->ip_csum = recalc_csum16(ip->ip_csum, 0, ip->ip_tot_len);
+ *ip_tot_size -= IP_HEADER_LEN;
+ return ip + 1;
+ }
+}
+
+static void *
+udp_extract_tnl_md(struct dp_packet *packet, struct flow_tnl *tnl,
+ unsigned int *hlen)
+{
+ struct udp_header *udp;
+
+ udp = ip_extract_tnl_md(packet, tnl, hlen);
+ if (!udp) {
+ return NULL;
+ }
+
+ if (udp->udp_csum) {
+ uint32_t csum;
+ if (is_header_ipv6(dp_packet_data(packet))) {
+ csum = packet_csum_pseudoheader6(dp_packet_l3(packet));
+ } else {
+ csum = packet_csum_pseudoheader(dp_packet_l3(packet));
+ }
+
+ csum = csum_continue(csum, udp, dp_packet_size(packet) -
+ ((const unsigned char *)udp -
+ (const unsigned char *)dp_packet_l2(packet)));
+ if (csum_finish(csum)) {
+ return NULL;
+ }
+ tnl->flags |= FLOW_TNL_F_CSUM;
+ }
+
+ tnl->tp_src = udp->udp_src;
+ tnl->tp_dst = udp->udp_dst;
+
+ return udp + 1;
+}
+
+
+void
+push_udp_header(struct dp_packet *packet,
+ const struct ovs_action_push_tnl *data)
+{
+ struct udp_header *udp;
+ int ip_tot_size;
+
+ udp = push_ip_header(packet, data->header, data->header_len, &ip_tot_size);
+
+ /* set udp src port */
+ udp->udp_src = get_src_port(packet);
+ udp->udp_len = htons(ip_tot_size);
+
+ if (udp->udp_csum) {
+ uint32_t csum;
+ if (is_header_ipv6(dp_packet_data(packet))) {
+ csum = packet_csum_pseudoheader6(ipv6_hdr(dp_packet_data(packet)));
+ } else {
+ csum = packet_csum_pseudoheader(ip_hdr(dp_packet_data(packet)));
+ }
+
+ csum = csum_continue(csum, udp, ip_tot_size);
+ udp->udp_csum = csum_finish(csum);
+
+ if (!udp->udp_csum) {
+ udp->udp_csum = htons(0xffff);
+ }
+ }
+}
+
+static void *
+udp_build_header(struct netdev_tunnel_config *tnl_cfg,
+ const struct flow *tnl_flow,
+ struct ovs_action_push_tnl *data,
+ unsigned int *hlen)
+{
+ struct ip_header *ip;
+ struct ovs_16aligned_ip6_hdr *ip6;
+ struct udp_header *udp;
+ bool is_ipv6;
+
+ *hlen = sizeof(struct eth_header);
+
+ is_ipv6 = is_header_ipv6(data->header);
+
+ if (is_ipv6) {
+ ip6 = ipv6_hdr(data->header);
+ ip6->ip6_nxt = IPPROTO_UDP;
+ udp = (struct udp_header *) (ip6 + 1);
+ *hlen += IPV6_HEADER_LEN;
+ } else {
+ ip = ip_hdr(data->header);
+ ip->ip_proto = IPPROTO_UDP;
+ udp = (struct udp_header *) (ip + 1);
+ *hlen += IP_HEADER_LEN;
+ }
+
+ udp->udp_dst = tnl_cfg->dst_port;
+
+ if (is_ipv6 || tnl_flow->tunnel.flags & FLOW_TNL_F_CSUM) {
+ /* Write a value in now to mark that we should compute the checksum
+ * later. 0xffff is handy because it is transparent to the
+ * calculation. */
+ udp->udp_csum = htons(0xffff);
+ }
+
+ return udp + 1;
+}
+
+static int
+gre_header_len(ovs_be16 flags)
+{
+ int hlen = 4;
+
+ if (flags & htons(GRE_CSUM)) {
+ hlen += 4;
+ }
+ if (flags & htons(GRE_KEY)) {
+ hlen += 4;
+ }
+ if (flags & htons(GRE_SEQ)) {
+ hlen += 4;
+ }
+ return hlen;
+}
+
+static int
+parse_gre_header(struct dp_packet *packet,
+ struct flow_tnl *tnl)
+{
+ const struct gre_base_hdr *greh;
+ ovs_16aligned_be32 *options;
+ int hlen;
+ unsigned int ulen;
+
+ greh = ip_extract_tnl_md(packet, tnl, &ulen);
+ if (!greh) {
+ return -EINVAL;
+ }
+
+ if (greh->flags & ~(htons(GRE_CSUM | GRE_KEY | GRE_SEQ))) {
+ return -EINVAL;
+ }
+
+ if (greh->protocol != htons(ETH_TYPE_TEB)) {
+ return -EINVAL;
+ }
+
+ hlen = ulen + gre_header_len(greh->flags);
+ if (hlen > dp_packet_size(packet)) {
+ return -EINVAL;
+ }
+
+ options = (ovs_16aligned_be32 *)(greh + 1);
+ if (greh->flags & htons(GRE_CSUM)) {
+ ovs_be16 pkt_csum;
+
+ pkt_csum = csum(greh, dp_packet_size(packet) -
+ ((const unsigned char *)greh -
+ (const unsigned char *)dp_packet_l2(packet)));
+ if (pkt_csum) {
+ return -EINVAL;
+ }
+ tnl->flags = FLOW_TNL_F_CSUM;
+ options++;
+ }
+
+ if (greh->flags & htons(GRE_KEY)) {
+ tnl->tun_id = (OVS_FORCE ovs_be64) ((OVS_FORCE uint64_t)(get_16aligned_be32(options)) << 32);
+ tnl->flags |= FLOW_TNL_F_KEY;
+ options++;
+ }
+
+ if (greh->flags & htons(GRE_SEQ)) {
+ options++;
+ }
+
+ return hlen;
+}
+
+int
+netdev_gre_pop_header(struct dp_packet *packet)
+{
+ struct pkt_metadata *md = &packet->md;
+ struct flow_tnl *tnl = &md->tunnel;
+ int hlen = sizeof(struct eth_header) + 4;
+
+ hlen += is_header_ipv6(dp_packet_data(packet)) ?
+ IPV6_HEADER_LEN : IP_HEADER_LEN;
+
+ pkt_metadata_init_tnl(md);
+ if (hlen > dp_packet_size(packet)) {
+ return EINVAL;
+ }
+
+ hlen = parse_gre_header(packet, tnl);
+ if (hlen < 0) {
+ return -hlen;
+ }
+
+ dp_packet_reset_packet(packet, hlen);
+
+ return 0;
+}
+
+void
+netdev_gre_push_header(struct dp_packet *packet,
+ const struct ovs_action_push_tnl *data)
+{
+ struct gre_base_hdr *greh;
+ int ip_tot_size;
+
+ greh = push_ip_header(packet, data->header, data->header_len, &ip_tot_size);
+
+ if (greh->flags & htons(GRE_CSUM)) {
+ ovs_be16 *csum_opt = (ovs_be16 *) (greh + 1);
+ *csum_opt = csum(greh, ip_tot_size);
+ }
+}
+
+int
+netdev_gre_build_header(const struct netdev *netdev,
+ struct ovs_action_push_tnl *data,
+ const struct flow *tnl_flow)
+{
+ struct netdev_vport *dev = netdev_vport_cast(netdev);
+ struct netdev_tunnel_config *tnl_cfg;
+ struct ip_header *ip;
+ struct ovs_16aligned_ip6_hdr *ip6;
+ struct gre_base_hdr *greh;
+ ovs_16aligned_be32 *options;
+ int hlen;
+ bool is_ipv6;
+
+ is_ipv6 = is_header_ipv6(data->header);
+
+ /* XXX: RCUfy tnl_cfg. */
+ ovs_mutex_lock(&dev->mutex);
+ tnl_cfg = &dev->tnl_cfg;
+
+ if (is_ipv6) {
+ ip6 = ipv6_hdr(data->header);
+ ip6->ip6_nxt = IPPROTO_GRE;
+ greh = (struct gre_base_hdr *) (ip6 + 1);
+ } else {
+ ip = ip_hdr(data->header);
+ ip->ip_proto = IPPROTO_GRE;
+ greh = (struct gre_base_hdr *) (ip + 1);
+ }
+
+ greh->protocol = htons(ETH_TYPE_TEB);
+ greh->flags = 0;
+
+ options = (ovs_16aligned_be32 *) (greh + 1);
+ if (tnl_flow->tunnel.flags & FLOW_TNL_F_CSUM) {
+ greh->flags |= htons(GRE_CSUM);
+ put_16aligned_be32(options, 0);
+ options++;
+ }
+
+ if (tnl_cfg->out_key_present) {
+ greh->flags |= htons(GRE_KEY);
+ put_16aligned_be32(options, (OVS_FORCE ovs_be32)
+ ((OVS_FORCE uint64_t) tnl_flow->tunnel.tun_id >> 32));
+ options++;
+ }
+
+ ovs_mutex_unlock(&dev->mutex);
+
+ hlen = (uint8_t *) options - (uint8_t *) greh;
+
+ data->header_len = sizeof(struct eth_header) + hlen +
+ (is_ipv6 ? IPV6_HEADER_LEN : IP_HEADER_LEN);
+ data->tnl_type = OVS_VPORT_TYPE_GRE;
+ return 0;
+}
+
+int
+netdev_vxlan_pop_header(struct dp_packet *packet)
+{
+ struct pkt_metadata *md = &packet->md;
+ struct flow_tnl *tnl = &md->tunnel;
+ struct vxlanhdr *vxh;
+ unsigned int hlen;
+
+ pkt_metadata_init_tnl(md);
+ if (VXLAN_HLEN > dp_packet_l4_size(packet)) {
+ return EINVAL;
+ }
+
+ vxh = udp_extract_tnl_md(packet, tnl, &hlen);
+ if (!vxh) {
+ return EINVAL;
+ }
+
+ if (get_16aligned_be32(&vxh->vx_flags) != htonl(VXLAN_FLAGS) ||
+ (get_16aligned_be32(&vxh->vx_vni) & htonl(0xff))) {
+ VLOG_WARN_RL(&err_rl, "invalid vxlan flags=%#x vni=%#x\n",
+ ntohl(get_16aligned_be32(&vxh->vx_flags)),
+ ntohl(get_16aligned_be32(&vxh->vx_vni)));
+ return EINVAL;
+ }
+ tnl->tun_id = htonll(ntohl(get_16aligned_be32(&vxh->vx_vni)) >> 8);
+ tnl->flags |= FLOW_TNL_F_KEY;
+
+ dp_packet_reset_packet(packet, hlen + VXLAN_HLEN);
+
+ return 0;
+}
+
+int
+netdev_vxlan_build_header(const struct netdev *netdev,
+ struct ovs_action_push_tnl *data,
+ const struct flow *tnl_flow)
+{
+ struct netdev_vport *dev = netdev_vport_cast(netdev);
+ struct netdev_tunnel_config *tnl_cfg;
+ struct vxlanhdr *vxh;
+ unsigned int hlen;
+
+ /* XXX: RCUfy tnl_cfg. */
+ ovs_mutex_lock(&dev->mutex);
+ tnl_cfg = &dev->tnl_cfg;
+
+ vxh = udp_build_header(tnl_cfg, tnl_flow, data, &hlen);
+
+ put_16aligned_be32(&vxh->vx_flags, htonl(VXLAN_FLAGS));
+ put_16aligned_be32(&vxh->vx_vni, htonl(ntohll(tnl_flow->tunnel.tun_id) << 8));
+
+ ovs_mutex_unlock(&dev->mutex);
+ data->header_len = hlen + VXLAN_HLEN;
+ data->tnl_type = OVS_VPORT_TYPE_VXLAN;
+ return 0;
+}
+
+int
+netdev_geneve_pop_header(struct dp_packet *packet)
+{
+ struct pkt_metadata *md = &packet->md;
+ struct flow_tnl *tnl = &md->tunnel;
+ struct genevehdr *gnh;
+ unsigned int hlen, opts_len, ulen;
+
+ pkt_metadata_init_tnl(md);
+ if (GENEVE_BASE_HLEN > dp_packet_l4_size(packet)) {
+ VLOG_WARN_RL(&err_rl, "geneve packet too small: min header=%u packet size=%"PRIuSIZE"\n",
+ (unsigned int)GENEVE_BASE_HLEN, dp_packet_l4_size(packet));
+ return EINVAL;
+ }
+
+ gnh = udp_extract_tnl_md(packet, tnl, &ulen);
+ if (!gnh) {
+ return EINVAL;
+ }
+
+ opts_len = gnh->opt_len * 4;
+ hlen = ulen + GENEVE_BASE_HLEN + opts_len;
+ if (hlen > dp_packet_size(packet)) {
+ VLOG_WARN_RL(&err_rl, "geneve packet too small: header len=%u packet size=%u\n",
+ hlen, dp_packet_size(packet));
+ return EINVAL;
+ }
+
+ if (gnh->ver != 0) {
+ VLOG_WARN_RL(&err_rl, "unknown geneve version: %"PRIu8"\n", gnh->ver);
+ return EINVAL;
+ }
+
+ if (gnh->proto_type != htons(ETH_TYPE_TEB)) {
+ VLOG_WARN_RL(&err_rl, "unknown geneve encapsulated protocol: %#x\n",
+ ntohs(gnh->proto_type));
+ return EINVAL;
+ }
+
+ tnl->flags |= gnh->oam ? FLOW_TNL_F_OAM : 0;
+ tnl->tun_id = htonll(ntohl(get_16aligned_be32(&gnh->vni)) >> 8);
+ tnl->flags |= FLOW_TNL_F_KEY;
+
+ memcpy(tnl->metadata.opts.gnv, gnh->options, opts_len);
+ tnl->metadata.present.len = opts_len;
+ tnl->flags |= FLOW_TNL_F_UDPIF;
+
+ dp_packet_reset_packet(packet, hlen);
+
+ return 0;
+}
+
+int
+netdev_geneve_build_header(const struct netdev *netdev,
+ struct ovs_action_push_tnl *data,
+ const struct flow *tnl_flow)
+{
+ struct netdev_vport *dev = netdev_vport_cast(netdev);
+ struct netdev_tunnel_config *tnl_cfg;
+ struct genevehdr *gnh;
+ int opt_len;
+ bool crit_opt;
+ unsigned int hlen;
+
+ /* XXX: RCUfy tnl_cfg. */
+ ovs_mutex_lock(&dev->mutex);
+ tnl_cfg = &dev->tnl_cfg;
+
+ gnh = udp_build_header(tnl_cfg, tnl_flow, data, &hlen);
+
+ put_16aligned_be32(&gnh->vni, htonl(ntohll(tnl_flow->tunnel.tun_id) << 8));
+
+ ovs_mutex_unlock(&dev->mutex);
+
+ opt_len = tun_metadata_to_geneve_header(&tnl_flow->tunnel,
+ gnh->options, &crit_opt);
+
+ gnh->opt_len = opt_len / 4;
+ gnh->oam = !!(tnl_flow->tunnel.flags & FLOW_TNL_F_OAM);
+ gnh->critical = crit_opt ? 1 : 0;
+ gnh->proto_type = htons(ETH_TYPE_TEB);
+
+ data->header_len = hlen + GENEVE_BASE_HLEN + opt_len;
+ data->tnl_type = OVS_VPORT_TYPE_GENEVE;
+ return 0;
+}
+
+
+void
+netdev_tnl_egress_port_range(struct unixctl_conn *conn, int argc,
+ const char *argv[], void *aux OVS_UNUSED)
+{
+ int val1, val2;
+
+ if (argc < 3) {
+ struct ds ds = DS_EMPTY_INITIALIZER;
+
+ ds_put_format(&ds, "Tunnel UDP source port range: %"PRIu16"-%"PRIu16"\n",
+ tnl_udp_port_min, tnl_udp_port_max);
+
+ unixctl_command_reply(conn, ds_cstr(&ds));
+ ds_destroy(&ds);
+ return;
+ }
+
+ if (argc != 3) {
+ return;
+ }
+
+ val1 = atoi(argv[1]);
+ if (val1 <= 0 || val1 > UINT16_MAX) {
+ unixctl_command_reply(conn, "Invalid min.");
+ return;
+ }
+ val2 = atoi(argv[2]);
+ if (val2 <= 0 || val2 > UINT16_MAX) {
+ unixctl_command_reply(conn, "Invalid max.");
+ return;
+ }
+
+ if (val1 > val2) {
+ tnl_udp_port_min = val2;
+ tnl_udp_port_max = val1;
+ } else {
+ tnl_udp_port_min = val1;
+ tnl_udp_port_max = val2;
+ }
+ seq_change(tnl_conf_seq);
+
+ unixctl_command_reply(conn, "OK");
+}
diff --git a/lib/netdev-native-tnl.h b/lib/netdev-native-tnl.h
new file mode 100644
index 0000000..5173b10
--- /dev/null
+++ b/lib/netdev-native-tnl.h
@@ -0,0 +1,108 @@
+/*
+ * Copyright (c) 2010, 2011, 2013, 2015 Nicira, Inc.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at:
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef NETDEV_VPORT_NATIVE_TNL_H
+#define NETDEV_VPORT_NATIVE_TNL_H 1
+
+#include <stdbool.h>
+#include <stddef.h>
+#include "compiler.h"
+#include "unixctl.h"
+
+int
+netdev_gre_build_header(const struct netdev *netdev,
+ struct ovs_action_push_tnl *data,
+ const struct flow *tnl_flow);
+void
+netdev_gre_push_header(struct dp_packet *packet,
+ const struct ovs_action_push_tnl *data);
+int
+netdev_gre_pop_header(struct dp_packet *packet);
+
+void
+push_udp_header(struct dp_packet *packet,
+ const struct ovs_action_push_tnl *data);
+int
+netdev_geneve_build_header(const struct netdev *netdev,
+ struct ovs_action_push_tnl *data,
+ const struct flow *tnl_flow);
+int
+netdev_geneve_pop_header(struct dp_packet *packet);
+
+int
+netdev_vxlan_build_header(const struct netdev *netdev,
+ struct ovs_action_push_tnl *data,
+ const struct flow *tnl_flow);
+int
+netdev_vxlan_pop_header(struct dp_packet *packet);
+
+void
+netdev_tnl_egress_port_range(struct unixctl_conn *conn, int argc,
+ const char *argv[], void *aux OVS_UNUSED);
+
+static inline bool
+is_header_ipv6(const void *header)
+{
+ const struct eth_header *eth;
+ eth = header;
+ return eth->eth_type == htons(ETH_TYPE_IPV6);
+}
+
+static inline void
+pkt_metadata_init_tnl(struct pkt_metadata *md)
+{
+ /* Zero up through the tunnel metadata options. The length and table
+ * are before this and as long as they are empty, the options won't
+ * be looked at. */
+ memset(md, 0, offsetof(struct pkt_metadata, tunnel.metadata.opts));
+}
+
+static inline struct ip_header *
+ip_hdr(void *eth)
+{
+ return (void *)((char *)eth + sizeof (struct eth_header));
+}
+
+static inline struct ovs_16aligned_ip6_hdr *
+ipv6_hdr(void *eth)
+{
+ return (void *)((char *)eth + sizeof (struct eth_header));
+}
+
+extern uint16_t tnl_udp_port_min;
+extern uint16_t tnl_udp_port_max;
+
+static inline ovs_be16
+get_src_port(struct dp_packet *packet)
+{
+ uint32_t hash;
+
+ hash = dp_packet_get_rss_hash(packet);
+
+ return htons((((uint64_t) hash * (tnl_udp_port_max - tnl_udp_port_min)) >> 32) +
+ tnl_udp_port_min);
+}
+
+void *
+ip_extract_tnl_md(struct dp_packet *packet, struct flow_tnl *tnl,
+ unsigned int *hlen);
+void *
+push_ip_header(struct dp_packet *packet,
+ const void *header, int size, int *ip_tot_size);
+void
+netdev_tnl_egress_port_range(struct unixctl_conn *conn, int argc,
+ const char *argv[], void *aux OVS_UNUSED);
+#endif
diff --git a/lib/netdev-provider.h b/lib/netdev-provider.h
index cda25eb..c2ddbf1 100644
--- a/lib/netdev-provider.h
+++ b/lib/netdev-provider.h
@@ -64,7 +64,7 @@ struct netdev {
struct ovs_list saved_flags_list; /* Contains "struct netdev_saved_flags". */
};
-static void
+static inline void
netdev_change_seq_changed(const struct netdev *netdev_)
{
struct netdev *netdev = CONST_CAST(struct netdev *, netdev_);
diff --git a/lib/netdev-vport-private.h b/lib/netdev-vport-private.h
new file mode 100644
index 0000000..a087031
--- /dev/null
+++ b/lib/netdev-vport-private.h
@@ -0,0 +1,63 @@
+/*
+ * Copyright (c) 2010, 2011, 2013, 2015 Nicira, Inc.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at:
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef NETDEV_VPORT_PRIVATE_H
+#define NETDEV_VPORT_PRAVITE_H 1
+
+#include <stdbool.h>
+#include <stddef.h>
+#include "compiler.h"
+#include "ovs-thread.h"
+
+struct netdev_vport {
+ struct netdev up;
+
+ /* Protects all members below. */
+ struct ovs_mutex mutex;
+
+ struct eth_addr etheraddr;
+ struct netdev_stats stats;
+
+ /* Tunnels. */
+ struct netdev_tunnel_config tnl_cfg;
+ char egress_iface[IFNAMSIZ];
+ bool carrier_status;
+
+ /* Patch Ports. */
+ char *peer;
+};
+
+struct vport_class {
+ const char *dpif_port;
+ struct netdev_class netdev_class;
+};
+
+int netdev_vport_construct(struct netdev *);
+
+static bool
+is_vport_class(const struct netdev_class *class)
+{
+ return class->construct == netdev_vport_construct;
+}
+
+static inline struct netdev_vport *
+netdev_vport_cast(const struct netdev *netdev)
+{
+ ovs_assert(is_vport_class(netdev_get_class(netdev)));
+ return CONTAINER_OF(netdev, struct netdev_vport, up);
+}
+
+#endif
diff --git a/lib/netdev-vport.c b/lib/netdev-vport.c
index e398562..a31667d 100644
--- a/lib/netdev-vport.c
+++ b/lib/netdev-vport.c
@@ -38,6 +38,7 @@
#include "hmap.h"
#include "openvswitch/list.h"
#include "netdev-provider.h"
+#include "netdev-vport-private.h"
#include "odp-netlink.h"
#include "dp-packet.h"
#include "ovs-router.h"
@@ -46,67 +47,28 @@
#include "route-table.h"
#include "shash.h"
#include "socket-util.h"
+#include "netdev-native-tnl.h"
#include "openvswitch/vlog.h"
#include "unaligned.h"
#include "unixctl.h"
#include "util.h"
VLOG_DEFINE_THIS_MODULE(netdev_vport);
-static struct vlog_rate_limit err_rl = VLOG_RATE_LIMIT_INIT(60, 5);
#define GENEVE_DST_PORT 6081
#define VXLAN_DST_PORT 4789
#define LISP_DST_PORT 4341
#define STT_DST_PORT 7471
-#define VXLAN_HLEN (sizeof(struct udp_header) + \
- sizeof(struct vxlanhdr))
-
-#define GENEVE_BASE_HLEN (sizeof(struct udp_header) + \
- sizeof(struct genevehdr))
-
#define DEFAULT_TTL 64
-struct netdev_vport {
- struct netdev up;
-
- /* Protects all members below. */
- struct ovs_mutex mutex;
-
- struct eth_addr etheraddr;
- struct netdev_stats stats;
-
- /* Tunnels. */
- struct netdev_tunnel_config tnl_cfg;
- char egress_iface[IFNAMSIZ];
- bool carrier_status;
-
- /* Patch Ports. */
- char *peer;
-};
-
-struct vport_class {
- const char *dpif_port;
- struct netdev_class netdev_class;
-};
-
/* Last read of the route-table's change number. */
static uint64_t rt_change_seqno;
-static int netdev_vport_construct(struct netdev *);
static int get_patch_config(const struct netdev *netdev, struct smap *args);
static int get_tunnel_config(const struct netdev *, struct smap *args);
static bool tunnel_check_status_change__(struct netdev_vport *);
-static uint16_t tnl_udp_port_min = 32768;
-static uint16_t tnl_udp_port_max = 61000;
-
-static bool
-is_vport_class(const struct netdev_class *class)
-{
- return class->construct == netdev_vport_construct;
-}
-
bool
netdev_vport_is_vport_class(const struct netdev_class *class)
{
@@ -120,13 +82,6 @@ vport_class_cast(const struct netdev_class *class)
return CONTAINER_OF(class, struct vport_class, netdev_class);
}
-static struct netdev_vport *
-netdev_vport_cast(const struct netdev *netdev)
-{
- ovs_assert(is_vport_class(netdev_get_class(netdev)));
- return CONTAINER_OF(netdev, struct netdev_vport, up);
-}
-
static const struct netdev_tunnel_config *
get_netdev_tunnel_config(const struct netdev *netdev)
{
@@ -240,7 +195,7 @@ netdev_vport_alloc(void)
return &netdev->up;
}
-static int
+int
netdev_vport_construct(struct netdev *netdev_)
{
struct netdev_vport *dev = netdev_vport_cast(netdev_);
@@ -858,617 +813,6 @@ get_stats(const struct netdev *netdev, struct netdev_stats *stats)
}
-/* Tunnel push pop ops. */
-
-static struct ip_header *
-ip_hdr(void *eth)
-{
- return (void *)((char *)eth + sizeof (struct eth_header));
-}
-
-static struct ovs_16aligned_ip6_hdr *
-ipv6_hdr(void *eth)
-{
- return (void *)((char *)eth + sizeof (struct eth_header));
-}
-
-static void *
-ip_extract_tnl_md(struct dp_packet *packet, struct flow_tnl *tnl,
- unsigned int *hlen)
-{
- void *nh;
- struct ip_header *ip;
- struct ovs_16aligned_ip6_hdr *ip6;
- void *l4;
- int l3_size;
-
- nh = dp_packet_l3(packet);
- ip = nh;
- ip6 = nh;
- l4 = dp_packet_l4(packet);
-
- if (!nh || !l4) {
- return NULL;
- }
-
- *hlen = sizeof(struct eth_header);
-
- l3_size = dp_packet_size(packet) -
- ((char *)nh - (char *)dp_packet_data(packet));
-
- if (IP_VER(ip->ip_ihl_ver) == 4) {
-
- ovs_be32 ip_src, ip_dst;
-
- if (csum(ip, IP_IHL(ip->ip_ihl_ver) * 4)) {
- VLOG_WARN_RL(&err_rl, "ip packet has invalid checksum");
- return NULL;
- }
-
- if (ntohs(ip->ip_tot_len) > l3_size) {
- VLOG_WARN_RL(&err_rl, "ip packet is truncated (IP length %d, actual %d)",
- ntohs(ip->ip_tot_len), l3_size);
- return NULL;
- }
- if (IP_IHL(ip->ip_ihl_ver) * 4 > sizeof(struct ip_header)) {
- VLOG_WARN_RL(&err_rl, "ip options not supported on tunnel packets "
- "(%d bytes)", IP_IHL(ip->ip_ihl_ver) * 4);
- return NULL;
- }
-
- ip_src = get_16aligned_be32(&ip->ip_src);
- ip_dst = get_16aligned_be32(&ip->ip_dst);
-
- tnl->ip_src = ip_src;
- tnl->ip_dst = ip_dst;
- tnl->ip_tos = ip->ip_tos;
- tnl->ip_ttl = ip->ip_ttl;
-
- *hlen += IP_HEADER_LEN;
-
- } else if (IP_VER(ip->ip_ihl_ver) == 6) {
-
- memcpy(tnl->ipv6_src.s6_addr, ip6->ip6_src.be16, sizeof ip6->ip6_src);
- memcpy(tnl->ipv6_dst.s6_addr, ip6->ip6_dst.be16, sizeof ip6->ip6_dst);
- tnl->ip_tos = 0;
- tnl->ip_ttl = ip6->ip6_hlim;
-
- *hlen += IPV6_HEADER_LEN;
-
- } else {
- VLOG_WARN_RL(&err_rl, "ipv4 packet has invalid version (%d)",
- IP_VER(ip->ip_ihl_ver));
- return NULL;
- }
-
- return l4;
-}
-
-static bool
-is_header_ipv6(const void *header)
-{
- const struct eth_header *eth;
- eth = header;
- return eth->eth_type == htons(ETH_TYPE_IPV6);
-}
-
-/* Pushes the 'size' bytes of 'header' into the headroom of 'packet',
- * reallocating the packet if necessary. 'header' should contain an Ethernet
- * header, followed by an IPv4 header (without options), and an L4 header.
- *
- * This function sets the IP header's ip_tot_len field (which should be zeroed
- * as part of 'header') and puts its value into '*ip_tot_size' as well. Also
- * updates IP header checksum.
- *
- * Return pointer to the L4 header added to 'packet'. */
-static void *
-push_ip_header(struct dp_packet *packet,
- const void *header, int size, int *ip_tot_size)
-{
- struct eth_header *eth;
- struct ip_header *ip;
- struct ovs_16aligned_ip6_hdr *ip6;
-
- eth = dp_packet_push_uninit(packet, size);
- *ip_tot_size = dp_packet_size(packet) - sizeof (struct eth_header);
-
- memcpy(eth, header, size);
-
- if (is_header_ipv6(header)) {
- ip6 = ipv6_hdr(eth);
- *ip_tot_size -= IPV6_HEADER_LEN;
- ip6->ip6_plen = htons(*ip_tot_size);
- return ip6 + 1;
- } else {
- ip = ip_hdr(eth);
- ip->ip_tot_len = htons(*ip_tot_size);
- ip->ip_csum = recalc_csum16(ip->ip_csum, 0, ip->ip_tot_len);
- *ip_tot_size -= IP_HEADER_LEN;
- return ip + 1;
- }
-}
-
-static void *
-udp_extract_tnl_md(struct dp_packet *packet, struct flow_tnl *tnl,
- unsigned int *hlen)
-{
- struct udp_header *udp;
-
- udp = ip_extract_tnl_md(packet, tnl, hlen);
- if (!udp) {
- return NULL;
- }
-
- if (udp->udp_csum) {
- uint32_t csum;
- if (is_header_ipv6(dp_packet_data(packet))) {
- csum = packet_csum_pseudoheader6(dp_packet_l3(packet));
- } else {
- csum = packet_csum_pseudoheader(dp_packet_l3(packet));
- }
-
- csum = csum_continue(csum, udp, dp_packet_size(packet) -
- ((const unsigned char *)udp -
- (const unsigned char *)dp_packet_l2(packet)));
- if (csum_finish(csum)) {
- return NULL;
- }
- tnl->flags |= FLOW_TNL_F_CSUM;
- }
-
- tnl->tp_src = udp->udp_src;
- tnl->tp_dst = udp->udp_dst;
-
- return udp + 1;
-}
-
-static ovs_be16
-get_src_port(struct dp_packet *packet)
-{
- uint32_t hash;
-
- hash = dp_packet_get_rss_hash(packet);
-
- return htons((((uint64_t) hash * (tnl_udp_port_max - tnl_udp_port_min)) >> 32) +
- tnl_udp_port_min);
-}
-
-static void
-push_udp_header(struct dp_packet *packet,
- const struct ovs_action_push_tnl *data)
-{
- struct udp_header *udp;
- int ip_tot_size;
-
- udp = push_ip_header(packet, data->header, data->header_len, &ip_tot_size);
-
- /* set udp src port */
- udp->udp_src = get_src_port(packet);
- udp->udp_len = htons(ip_tot_size);
-
- if (udp->udp_csum) {
- uint32_t csum;
- if (is_header_ipv6(dp_packet_data(packet))) {
- csum = packet_csum_pseudoheader6(ipv6_hdr(dp_packet_data(packet)));
- } else {
- csum = packet_csum_pseudoheader(ip_hdr(dp_packet_data(packet)));
- }
-
- csum = csum_continue(csum, udp, ip_tot_size);
- udp->udp_csum = csum_finish(csum);
-
- if (!udp->udp_csum) {
- udp->udp_csum = htons(0xffff);
- }
- }
-}
-
-static void *
-udp_build_header(struct netdev_tunnel_config *tnl_cfg,
- const struct flow *tnl_flow,
- struct ovs_action_push_tnl *data,
- unsigned int *hlen)
-{
- struct ip_header *ip;
- struct ovs_16aligned_ip6_hdr *ip6;
- struct udp_header *udp;
- bool is_ipv6;
-
- *hlen = sizeof(struct eth_header);
-
- is_ipv6 = is_header_ipv6(data->header);
-
- if (is_ipv6) {
- ip6 = ipv6_hdr(data->header);
- ip6->ip6_nxt = IPPROTO_UDP;
- udp = (struct udp_header *) (ip6 + 1);
- *hlen += IPV6_HEADER_LEN;
- } else {
- ip = ip_hdr(data->header);
- ip->ip_proto = IPPROTO_UDP;
- udp = (struct udp_header *) (ip + 1);
- *hlen += IP_HEADER_LEN;
- }
-
- udp->udp_dst = tnl_cfg->dst_port;
-
- if (is_ipv6 || tnl_flow->tunnel.flags & FLOW_TNL_F_CSUM) {
- /* Write a value in now to mark that we should compute the checksum
- * later. 0xffff is handy because it is transparent to the
- * calculation. */
- udp->udp_csum = htons(0xffff);
- }
-
- return udp + 1;
-}
-
-static int
-gre_header_len(ovs_be16 flags)
-{
- int hlen = 4;
-
- if (flags & htons(GRE_CSUM)) {
- hlen += 4;
- }
- if (flags & htons(GRE_KEY)) {
- hlen += 4;
- }
- if (flags & htons(GRE_SEQ)) {
- hlen += 4;
- }
- return hlen;
-}
-
-static int
-parse_gre_header(struct dp_packet *packet,
- struct flow_tnl *tnl)
-{
- const struct gre_base_hdr *greh;
- ovs_16aligned_be32 *options;
- int hlen;
- unsigned int ulen;
-
- greh = ip_extract_tnl_md(packet, tnl, &ulen);
- if (!greh) {
- return -EINVAL;
- }
-
- if (greh->flags & ~(htons(GRE_CSUM | GRE_KEY | GRE_SEQ))) {
- return -EINVAL;
- }
-
- if (greh->protocol != htons(ETH_TYPE_TEB)) {
- return -EINVAL;
- }
-
- hlen = ulen + gre_header_len(greh->flags);
- if (hlen > dp_packet_size(packet)) {
- return -EINVAL;
- }
-
- options = (ovs_16aligned_be32 *)(greh + 1);
- if (greh->flags & htons(GRE_CSUM)) {
- ovs_be16 pkt_csum;
-
- pkt_csum = csum(greh, dp_packet_size(packet) -
- ((const unsigned char *)greh -
- (const unsigned char *)dp_packet_l2(packet)));
- if (pkt_csum) {
- return -EINVAL;
- }
- tnl->flags = FLOW_TNL_F_CSUM;
- options++;
- }
-
- if (greh->flags & htons(GRE_KEY)) {
- tnl->tun_id = (OVS_FORCE ovs_be64) ((OVS_FORCE uint64_t)(get_16aligned_be32(options)) << 32);
- tnl->flags |= FLOW_TNL_F_KEY;
- options++;
- }
-
- if (greh->flags & htons(GRE_SEQ)) {
- options++;
- }
-
- return hlen;
-}
-
-static void
-pkt_metadata_init_tnl(struct pkt_metadata *md)
-{
- /* Zero up through the tunnel metadata options. The length and table
- * are before this and as long as they are empty, the options won't
- * be looked at. */
- memset(md, 0, offsetof(struct pkt_metadata, tunnel.metadata.opts));
-}
-
-static int
-netdev_gre_pop_header(struct dp_packet *packet)
-{
- struct pkt_metadata *md = &packet->md;
- struct flow_tnl *tnl = &md->tunnel;
- int hlen = sizeof(struct eth_header) + 4;
-
- hlen += is_header_ipv6(dp_packet_data(packet)) ?
- IPV6_HEADER_LEN : IP_HEADER_LEN;
-
- pkt_metadata_init_tnl(md);
- if (hlen > dp_packet_size(packet)) {
- return EINVAL;
- }
-
- hlen = parse_gre_header(packet, tnl);
- if (hlen < 0) {
- return -hlen;
- }
-
- dp_packet_reset_packet(packet, hlen);
-
- return 0;
-}
-
-static void
-netdev_gre_push_header(struct dp_packet *packet,
- const struct ovs_action_push_tnl *data)
-{
- struct gre_base_hdr *greh;
- int ip_tot_size;
-
- greh = push_ip_header(packet, data->header, data->header_len, &ip_tot_size);
-
- if (greh->flags & htons(GRE_CSUM)) {
- ovs_be16 *csum_opt = (ovs_be16 *) (greh + 1);
- *csum_opt = csum(greh, ip_tot_size);
- }
-}
-
-static int
-netdev_gre_build_header(const struct netdev *netdev,
- struct ovs_action_push_tnl *data,
- const struct flow *tnl_flow)
-{
- struct netdev_vport *dev = netdev_vport_cast(netdev);
- struct netdev_tunnel_config *tnl_cfg;
- struct ip_header *ip;
- struct ovs_16aligned_ip6_hdr *ip6;
- struct gre_base_hdr *greh;
- ovs_16aligned_be32 *options;
- int hlen;
- bool is_ipv6;
-
- is_ipv6 = is_header_ipv6(data->header);
-
- /* XXX: RCUfy tnl_cfg. */
- ovs_mutex_lock(&dev->mutex);
- tnl_cfg = &dev->tnl_cfg;
-
- if (is_ipv6) {
- ip6 = ipv6_hdr(data->header);
- ip6->ip6_nxt = IPPROTO_GRE;
- greh = (struct gre_base_hdr *) (ip6 + 1);
- } else {
- ip = ip_hdr(data->header);
- ip->ip_proto = IPPROTO_GRE;
- greh = (struct gre_base_hdr *) (ip + 1);
- }
-
- greh->protocol = htons(ETH_TYPE_TEB);
- greh->flags = 0;
-
- options = (ovs_16aligned_be32 *) (greh + 1);
- if (tnl_flow->tunnel.flags & FLOW_TNL_F_CSUM) {
- greh->flags |= htons(GRE_CSUM);
- put_16aligned_be32(options, 0);
- options++;
- }
-
- if (tnl_cfg->out_key_present) {
- greh->flags |= htons(GRE_KEY);
- put_16aligned_be32(options, (OVS_FORCE ovs_be32)
- ((OVS_FORCE uint64_t) tnl_flow->tunnel.tun_id >> 32));
- options++;
- }
-
- ovs_mutex_unlock(&dev->mutex);
-
- hlen = (uint8_t *) options - (uint8_t *) greh;
-
- data->header_len = sizeof(struct eth_header) + hlen +
- (is_ipv6 ? IPV6_HEADER_LEN : IP_HEADER_LEN);
- data->tnl_type = OVS_VPORT_TYPE_GRE;
- return 0;
-}
-
-static int
-netdev_vxlan_pop_header(struct dp_packet *packet)
-{
- struct pkt_metadata *md = &packet->md;
- struct flow_tnl *tnl = &md->tunnel;
- struct vxlanhdr *vxh;
- unsigned int hlen;
-
- pkt_metadata_init_tnl(md);
- if (VXLAN_HLEN > dp_packet_l4_size(packet)) {
- return EINVAL;
- }
-
- vxh = udp_extract_tnl_md(packet, tnl, &hlen);
- if (!vxh) {
- return EINVAL;
- }
-
- if (get_16aligned_be32(&vxh->vx_flags) != htonl(VXLAN_FLAGS) ||
- (get_16aligned_be32(&vxh->vx_vni) & htonl(0xff))) {
- VLOG_WARN_RL(&err_rl, "invalid vxlan flags=%#x vni=%#x\n",
- ntohl(get_16aligned_be32(&vxh->vx_flags)),
- ntohl(get_16aligned_be32(&vxh->vx_vni)));
- return EINVAL;
- }
- tnl->tun_id = htonll(ntohl(get_16aligned_be32(&vxh->vx_vni)) >> 8);
- tnl->flags |= FLOW_TNL_F_KEY;
-
- dp_packet_reset_packet(packet, hlen + VXLAN_HLEN);
-
- return 0;
-}
-
-static int
-netdev_vxlan_build_header(const struct netdev *netdev,
- struct ovs_action_push_tnl *data,
- const struct flow *tnl_flow)
-{
- struct netdev_vport *dev = netdev_vport_cast(netdev);
- struct netdev_tunnel_config *tnl_cfg;
- struct vxlanhdr *vxh;
- unsigned int hlen;
-
- /* XXX: RCUfy tnl_cfg. */
- ovs_mutex_lock(&dev->mutex);
- tnl_cfg = &dev->tnl_cfg;
-
- vxh = udp_build_header(tnl_cfg, tnl_flow, data, &hlen);
-
- put_16aligned_be32(&vxh->vx_flags, htonl(VXLAN_FLAGS));
- put_16aligned_be32(&vxh->vx_vni, htonl(ntohll(tnl_flow->tunnel.tun_id) << 8));
-
- ovs_mutex_unlock(&dev->mutex);
- data->header_len = hlen + VXLAN_HLEN;
- data->tnl_type = OVS_VPORT_TYPE_VXLAN;
- return 0;
-}
-
-static int
-netdev_geneve_pop_header(struct dp_packet *packet)
-{
- struct pkt_metadata *md = &packet->md;
- struct flow_tnl *tnl = &md->tunnel;
- struct genevehdr *gnh;
- unsigned int hlen, opts_len, ulen;
-
- pkt_metadata_init_tnl(md);
- if (GENEVE_BASE_HLEN > dp_packet_l4_size(packet)) {
- VLOG_WARN_RL(&err_rl, "geneve packet too small: min header=%u packet size=%"PRIuSIZE"\n",
- (unsigned int)GENEVE_BASE_HLEN, dp_packet_l4_size(packet));
- return EINVAL;
- }
-
- gnh = udp_extract_tnl_md(packet, tnl, &ulen);
- if (!gnh) {
- return EINVAL;
- }
-
- opts_len = gnh->opt_len * 4;
- hlen = ulen + GENEVE_BASE_HLEN + opts_len;
- if (hlen > dp_packet_size(packet)) {
- VLOG_WARN_RL(&err_rl, "geneve packet too small: header len=%u packet size=%u\n",
- hlen, dp_packet_size(packet));
- return EINVAL;
- }
-
- if (gnh->ver != 0) {
- VLOG_WARN_RL(&err_rl, "unknown geneve version: %"PRIu8"\n", gnh->ver);
- return EINVAL;
- }
-
- if (gnh->proto_type != htons(ETH_TYPE_TEB)) {
- VLOG_WARN_RL(&err_rl, "unknown geneve encapsulated protocol: %#x\n",
- ntohs(gnh->proto_type));
- return EINVAL;
- }
-
- tnl->flags |= gnh->oam ? FLOW_TNL_F_OAM : 0;
- tnl->tun_id = htonll(ntohl(get_16aligned_be32(&gnh->vni)) >> 8);
- tnl->flags |= FLOW_TNL_F_KEY;
-
- memcpy(tnl->metadata.opts.gnv, gnh->options, opts_len);
- tnl->metadata.present.len = opts_len;
- tnl->flags |= FLOW_TNL_F_UDPIF;
-
- dp_packet_reset_packet(packet, hlen);
-
- return 0;
-}
-
-static int
-netdev_geneve_build_header(const struct netdev *netdev,
- struct ovs_action_push_tnl *data,
- const struct flow *tnl_flow)
-{
- struct netdev_vport *dev = netdev_vport_cast(netdev);
- struct netdev_tunnel_config *tnl_cfg;
- struct genevehdr *gnh;
- int opt_len;
- bool crit_opt;
- unsigned int hlen;
-
- /* XXX: RCUfy tnl_cfg. */
- ovs_mutex_lock(&dev->mutex);
- tnl_cfg = &dev->tnl_cfg;
-
- gnh = udp_build_header(tnl_cfg, tnl_flow, data, &hlen);
-
- put_16aligned_be32(&gnh->vni, htonl(ntohll(tnl_flow->tunnel.tun_id) << 8));
-
- ovs_mutex_unlock(&dev->mutex);
-
- opt_len = tun_metadata_to_geneve_header(&tnl_flow->tunnel,
- gnh->options, &crit_opt);
-
- gnh->opt_len = opt_len / 4;
- gnh->oam = !!(tnl_flow->tunnel.flags & FLOW_TNL_F_OAM);
- gnh->critical = crit_opt ? 1 : 0;
- gnh->proto_type = htons(ETH_TYPE_TEB);
-
- data->header_len = hlen + GENEVE_BASE_HLEN + opt_len;
- data->tnl_type = OVS_VPORT_TYPE_GENEVE;
- return 0;
-}
-
-static void
-netdev_vport_range(struct unixctl_conn *conn, int argc,
- const char *argv[], void *aux OVS_UNUSED)
-{
- int val1, val2;
-
- if (argc < 3) {
- struct ds ds = DS_EMPTY_INITIALIZER;
-
- ds_put_format(&ds, "Tunnel UDP source port range: %"PRIu16"-%"PRIu16"\n",
- tnl_udp_port_min, tnl_udp_port_max);
-
- unixctl_command_reply(conn, ds_cstr(&ds));
- ds_destroy(&ds);
- return;
- }
-
- if (argc != 3) {
- return;
- }
-
- val1 = atoi(argv[1]);
- if (val1 <= 0 || val1 > UINT16_MAX) {
- unixctl_command_reply(conn, "Invalid min.");
- return;
- }
- val2 = atoi(argv[2]);
- if (val2 <= 0 || val2 > UINT16_MAX) {
- unixctl_command_reply(conn, "Invalid max.");
- return;
- }
-
- if (val1 > val2) {
- tnl_udp_port_min = val2;
- tnl_udp_port_max = val1;
- } else {
- tnl_udp_port_min = val1;
- tnl_udp_port_max = val2;
- }
- seq_change(tnl_conf_seq);
-
- unixctl_command_reply(conn, "OK");
-}
-
-
#define VPORT_FUNCTIONS(GET_CONFIG, SET_CONFIG, \
GET_TUNNEL_CONFIG, GET_STATUS, \
BUILD_HEADER, \
@@ -1576,7 +920,7 @@ netdev_vport_tunnel_register(void)
}
unixctl_command_register("tnl/egress_port_range", "min max", 0, 2,
- netdev_vport_range, NULL);
+ netdev_tnl_egress_port_range, NULL);
ovsthread_once_done(&once);
}
--
2.5.5
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