2 * Copyright (c) 2010, 2011, 2012 Nicira, Inc.
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at:
8 * http://www.apache.org/licenses/LICENSE-2.0
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
19 #include "netdev-vport.h"
23 #include <sys/socket.h>
24 #include <linux/openvswitch.h>
25 #include <linux/rtnetlink.h>
27 #include <sys/ioctl.h>
29 #include "byte-order.h"
32 #include "dpif-linux.h"
36 #include "netdev-linux.h"
37 #include "netdev-provider.h"
39 #include "netlink-notifier.h"
40 #include "netlink-socket.h"
42 #include "openvswitch/tunnel.h"
44 #include "route-table.h"
46 #include "socket-util.h"
47 #include "unaligned.h"
50 VLOG_DEFINE_THIS_MODULE(netdev_vport);
52 struct netdev_dev_vport {
53 struct netdev_dev netdev_dev;
54 struct ofpbuf *options;
55 int dp_ifindex; /* -1 if unknown. */
56 uint32_t port_no; /* UINT32_MAX if unknown. */
57 unsigned int change_seq;
65 enum ovs_vport_type type;
66 struct netdev_class netdev_class;
67 int (*parse_config)(const char *name, const char *type,
68 const struct smap *args, struct ofpbuf *options);
69 int (*unparse_config)(const char *name, const char *type,
70 const struct nlattr *options, size_t options_len,
74 static struct vlog_rate_limit rl = VLOG_RATE_LIMIT_INIT(5, 20);
76 static int netdev_vport_create(const struct netdev_class *, const char *,
77 struct netdev_dev **);
78 static void netdev_vport_poll_notify(const struct netdev *);
79 static int tnl_port_config_from_nlattr(const struct nlattr *options,
81 struct nlattr *a[OVS_TUNNEL_ATTR_MAX + 1]);
83 static const char *netdev_vport_get_tnl_iface(const struct netdev *netdev);
86 is_vport_class(const struct netdev_class *class)
88 return class->create == netdev_vport_create;
91 static const struct vport_class *
92 vport_class_cast(const struct netdev_class *class)
94 assert(is_vport_class(class));
95 return CONTAINER_OF(class, struct vport_class, netdev_class);
98 static struct netdev_dev_vport *
99 netdev_dev_vport_cast(const struct netdev_dev *netdev_dev)
101 assert(is_vport_class(netdev_dev_get_class(netdev_dev)));
102 return CONTAINER_OF(netdev_dev, struct netdev_dev_vport, netdev_dev);
105 static struct netdev_vport *
106 netdev_vport_cast(const struct netdev *netdev)
108 struct netdev_dev *netdev_dev = netdev_get_dev(netdev);
109 assert(is_vport_class(netdev_dev_get_class(netdev_dev)));
110 return CONTAINER_OF(netdev, struct netdev_vport, netdev);
113 /* If 'netdev' is a vport netdev, returns an ofpbuf that contains Netlink
114 * options to include in OVS_VPORT_ATTR_OPTIONS for configuring that vport.
115 * Otherwise returns NULL. */
116 const struct ofpbuf *
117 netdev_vport_get_options(const struct netdev *netdev)
119 const struct netdev_dev *dev = netdev_get_dev(netdev);
121 return (is_vport_class(netdev_dev_get_class(dev))
122 ? netdev_dev_vport_cast(dev)->options
127 netdev_vport_get_vport_type(const struct netdev *netdev)
129 const struct netdev_dev *dev = netdev_get_dev(netdev);
130 const struct netdev_class *class = netdev_dev_get_class(dev);
132 return (is_vport_class(class) ? vport_class_cast(class)->type
133 : class == &netdev_internal_class ? OVS_VPORT_TYPE_INTERNAL
134 : (class == &netdev_linux_class ||
135 class == &netdev_tap_class) ? OVS_VPORT_TYPE_NETDEV
136 : OVS_VPORT_TYPE_UNSPEC);
140 netdev_vport_get_netdev_type(const struct dpif_linux_vport *vport)
142 struct nlattr *a[OVS_TUNNEL_ATTR_MAX + 1];
144 switch (vport->type) {
145 case OVS_VPORT_TYPE_UNSPEC:
148 case OVS_VPORT_TYPE_NETDEV:
151 case OVS_VPORT_TYPE_INTERNAL:
154 case OVS_VPORT_TYPE_PATCH:
157 case OVS_VPORT_TYPE_GRE:
158 if (tnl_port_config_from_nlattr(vport->options, vport->options_len,
162 return (nl_attr_get_u32(a[OVS_TUNNEL_ATTR_FLAGS]) & TNL_F_IPSEC
163 ? "ipsec_gre" : "gre");
165 case OVS_VPORT_TYPE_GRE64:
166 if (tnl_port_config_from_nlattr(vport->options, vport->options_len,
170 return (nl_attr_get_u32(a[OVS_TUNNEL_ATTR_FLAGS]) & TNL_F_IPSEC
171 ? "ipsec_gre64" : "gre64");
173 case OVS_VPORT_TYPE_CAPWAP:
176 case __OVS_VPORT_TYPE_MAX:
180 VLOG_WARN_RL(&rl, "dp%d: port `%s' has unsupported type %u",
181 vport->dp_ifindex, vport->name, (unsigned int) vport->type);
186 netdev_vport_create(const struct netdev_class *netdev_class, const char *name,
187 struct netdev_dev **netdev_devp)
189 struct netdev_dev_vport *dev;
191 dev = xmalloc(sizeof *dev);
192 netdev_dev_init(&dev->netdev_dev, name, netdev_class);
194 dev->dp_ifindex = -1;
195 dev->port_no = UINT32_MAX;
198 *netdev_devp = &dev->netdev_dev;
199 route_table_register();
205 netdev_vport_destroy(struct netdev_dev *netdev_dev_)
207 struct netdev_dev_vport *netdev_dev = netdev_dev_vport_cast(netdev_dev_);
209 ofpbuf_delete(netdev_dev->options);
210 route_table_unregister();
215 netdev_vport_open(struct netdev_dev *netdev_dev_, struct netdev **netdevp)
217 struct netdev_vport *netdev;
219 netdev = xmalloc(sizeof *netdev);
220 netdev_init(&netdev->netdev, netdev_dev_);
222 *netdevp = &netdev->netdev;
227 netdev_vport_close(struct netdev *netdev_)
229 struct netdev_vport *netdev = netdev_vport_cast(netdev_);
234 netdev_vport_get_config(struct netdev_dev *dev_, struct smap *args)
236 const struct netdev_class *netdev_class = netdev_dev_get_class(dev_);
237 const struct vport_class *vport_class = vport_class_cast(netdev_class);
238 struct netdev_dev_vport *dev = netdev_dev_vport_cast(dev_);
239 const char *name = netdev_dev_get_name(dev_);
243 struct dpif_linux_vport reply;
246 error = dpif_linux_vport_get(name, &reply, &buf);
248 VLOG_ERR_RL(&rl, "%s: vport query failed (%s)",
249 name, strerror(error));
253 dev->options = ofpbuf_clone_data(reply.options, reply.options_len);
254 dev->dp_ifindex = reply.dp_ifindex;
255 dev->port_no = reply.port_no;
259 error = vport_class->unparse_config(name, netdev_class->type,
264 VLOG_ERR_RL(&rl, "%s: failed to parse kernel config (%s)",
265 name, strerror(error));
271 netdev_vport_set_config(struct netdev_dev *dev_, const struct smap *args)
273 const struct netdev_class *netdev_class = netdev_dev_get_class(dev_);
274 const struct vport_class *vport_class = vport_class_cast(netdev_class);
275 struct netdev_dev_vport *dev = netdev_dev_vport_cast(dev_);
276 const char *name = netdev_dev_get_name(dev_);
277 struct ofpbuf *options;
280 options = ofpbuf_new(64);
281 error = vport_class->parse_config(name, netdev_dev_get_type(dev_),
285 || options->size != dev->options->size
286 || memcmp(options->data, dev->options->data, options->size))) {
287 struct dpif_linux_vport vport;
289 dpif_linux_vport_init(&vport);
290 vport.cmd = OVS_VPORT_CMD_SET;
292 vport.options = options->data;
293 vport.options_len = options->size;
294 error = dpif_linux_vport_transact(&vport, NULL, NULL);
295 if (!error || error == ENODEV) {
296 /* Either reconfiguration succeeded or this vport is not installed
297 * in the kernel (e.g. it hasn't been added to a dpif yet with
298 * dpif_port_add()). */
299 ofpbuf_delete(dev->options);
300 dev->options = options;
305 ofpbuf_delete(options);
311 netdev_vport_send(struct netdev *netdev, const void *data, size_t size)
313 struct netdev_dev *dev_ = netdev_get_dev(netdev);
314 struct netdev_dev_vport *dev = netdev_dev_vport_cast(dev_);
316 if (dev->dp_ifindex == -1) {
317 const char *name = netdev_get_name(netdev);
318 struct dpif_linux_vport reply;
322 error = dpif_linux_vport_get(name, &reply, &buf);
324 VLOG_ERR_RL(&rl, "%s: failed to query vport for send (%s)",
325 name, strerror(error));
328 dev->dp_ifindex = reply.dp_ifindex;
329 dev->port_no = reply.port_no;
333 return dpif_linux_vport_send(dev->dp_ifindex, dev->port_no, data, size);
337 netdev_vport_set_etheraddr(struct netdev *netdev,
338 const uint8_t mac[ETH_ADDR_LEN])
340 struct dpif_linux_vport vport;
343 dpif_linux_vport_init(&vport);
344 vport.cmd = OVS_VPORT_CMD_SET;
345 vport.name = netdev_get_name(netdev);
348 error = dpif_linux_vport_transact(&vport, NULL, NULL);
350 netdev_vport_poll_notify(netdev);
356 netdev_vport_get_etheraddr(const struct netdev *netdev,
357 uint8_t mac[ETH_ADDR_LEN])
359 struct dpif_linux_vport reply;
363 error = dpif_linux_vport_get(netdev_get_name(netdev), &reply, &buf);
366 memcpy(mac, reply.address, ETH_ADDR_LEN);
375 /* Copies 'src' into 'dst', performing format conversion in the process.
377 * 'src' is allowed to be misaligned. */
379 netdev_stats_from_ovs_vport_stats(struct netdev_stats *dst,
380 const struct ovs_vport_stats *src)
382 dst->rx_packets = get_unaligned_u64(&src->rx_packets);
383 dst->tx_packets = get_unaligned_u64(&src->tx_packets);
384 dst->rx_bytes = get_unaligned_u64(&src->rx_bytes);
385 dst->tx_bytes = get_unaligned_u64(&src->tx_bytes);
386 dst->rx_errors = get_unaligned_u64(&src->rx_errors);
387 dst->tx_errors = get_unaligned_u64(&src->tx_errors);
388 dst->rx_dropped = get_unaligned_u64(&src->rx_dropped);
389 dst->tx_dropped = get_unaligned_u64(&src->tx_dropped);
392 dst->rx_length_errors = 0;
393 dst->rx_over_errors = 0;
394 dst->rx_crc_errors = 0;
395 dst->rx_frame_errors = 0;
396 dst->rx_fifo_errors = 0;
397 dst->rx_missed_errors = 0;
398 dst->tx_aborted_errors = 0;
399 dst->tx_carrier_errors = 0;
400 dst->tx_fifo_errors = 0;
401 dst->tx_heartbeat_errors = 0;
402 dst->tx_window_errors = 0;
405 /* Copies 'src' into 'dst', performing format conversion in the process. */
407 netdev_stats_to_ovs_vport_stats(struct ovs_vport_stats *dst,
408 const struct netdev_stats *src)
410 dst->rx_packets = src->rx_packets;
411 dst->tx_packets = src->tx_packets;
412 dst->rx_bytes = src->rx_bytes;
413 dst->tx_bytes = src->tx_bytes;
414 dst->rx_errors = src->rx_errors;
415 dst->tx_errors = src->tx_errors;
416 dst->rx_dropped = src->rx_dropped;
417 dst->tx_dropped = src->tx_dropped;
421 netdev_vport_get_stats(const struct netdev *netdev, struct netdev_stats *stats)
423 struct dpif_linux_vport reply;
427 error = dpif_linux_vport_get(netdev_get_name(netdev), &reply, &buf);
430 } else if (!reply.stats) {
435 netdev_stats_from_ovs_vport_stats(stats, reply.stats);
443 netdev_vport_set_stats(struct netdev *netdev, const struct netdev_stats *stats)
445 struct ovs_vport_stats rtnl_stats;
446 struct dpif_linux_vport vport;
449 netdev_stats_to_ovs_vport_stats(&rtnl_stats, stats);
451 dpif_linux_vport_init(&vport);
452 vport.cmd = OVS_VPORT_CMD_SET;
453 vport.name = netdev_get_name(netdev);
454 vport.stats = &rtnl_stats;
456 err = dpif_linux_vport_transact(&vport, NULL, NULL);
458 /* If the vport layer doesn't know about the device, that doesn't mean it
459 * doesn't exist (after all were able to open it when netdev_open() was
460 * called), it just means that it isn't attached and we'll be getting
461 * stats a different way. */
470 netdev_vport_get_drv_info(const struct netdev *netdev, struct smap *smap)
472 const char *iface = netdev_vport_get_tnl_iface(netdev);
475 struct netdev *egress_netdev;
477 smap_add(smap, "tunnel_egress_iface", iface);
479 if (!netdev_open(iface, "system", &egress_netdev)) {
480 smap_add(smap, "tunnel_egress_iface_carrier",
481 netdev_get_carrier(egress_netdev) ? "up" : "down");
482 netdev_close(egress_netdev);
490 netdev_vport_update_flags(struct netdev *netdev OVS_UNUSED,
491 enum netdev_flags off, enum netdev_flags on OVS_UNUSED,
492 enum netdev_flags *old_flagsp)
494 if (off & (NETDEV_UP | NETDEV_PROMISC)) {
498 *old_flagsp = NETDEV_UP | NETDEV_PROMISC;
503 netdev_vport_change_seq(const struct netdev *netdev)
505 return netdev_dev_vport_cast(netdev_get_dev(netdev))->change_seq;
509 netdev_vport_run(void)
515 netdev_vport_wait(void)
520 /* get_tnl_iface() implementation. */
522 netdev_vport_get_tnl_iface(const struct netdev *netdev)
524 struct nlattr *a[OVS_TUNNEL_ATTR_MAX + 1];
526 struct netdev_dev_vport *ndv;
527 static char name[IFNAMSIZ];
529 ndv = netdev_dev_vport_cast(netdev_get_dev(netdev));
530 if (tnl_port_config_from_nlattr(ndv->options->data, ndv->options->size,
534 route = nl_attr_get_be32(a[OVS_TUNNEL_ATTR_DST_IPV4]);
536 if (route_table_get_name(route, name)) {
543 /* Helper functions. */
546 netdev_vport_poll_notify(const struct netdev *netdev)
548 struct netdev_dev_vport *ndv;
550 ndv = netdev_dev_vport_cast(netdev_get_dev(netdev));
553 if (!ndv->change_seq) {
558 /* Code specific to individual vport types. */
561 set_key(const struct smap *args, const char *name, uint16_t type,
562 struct ofpbuf *options)
566 s = smap_get(args, name);
568 s = smap_get(args, "key");
574 if (!strcmp(s, "flow")) {
575 /* This is the default if no attribute is present. */
577 nl_msg_put_be64(options, type, htonll(strtoull(s, NULL, 0)));
582 parse_tunnel_config(const char *name, const char *type,
583 const struct smap *args, struct ofpbuf *options)
586 bool is_ipsec = false;
587 struct smap_node *node;
588 bool ipsec_mech_set = false;
589 ovs_be32 daddr = htonl(0);
590 ovs_be32 saddr = htonl(0);
593 flags = TNL_F_DF_DEFAULT | TNL_F_PMTUD | TNL_F_HDR_CACHE;
594 if (!strcmp(type, "gre") || !strcmp(type, "gre64")) {
596 } else if (!strcmp(type, "ipsec_gre") || !strcmp(type, "ipsec_gre64")) {
599 flags |= TNL_F_IPSEC;
600 flags &= ~TNL_F_HDR_CACHE;
603 SMAP_FOR_EACH (node, args) {
604 if (!strcmp(node->key, "remote_ip")) {
605 struct in_addr in_addr;
606 if (lookup_ip(node->value, &in_addr)) {
607 VLOG_WARN("%s: bad %s 'remote_ip'", name, type);
609 daddr = in_addr.s_addr;
611 } else if (!strcmp(node->key, "local_ip")) {
612 struct in_addr in_addr;
613 if (lookup_ip(node->value, &in_addr)) {
614 VLOG_WARN("%s: bad %s 'local_ip'", name, type);
616 saddr = in_addr.s_addr;
618 } else if (!strcmp(node->key, "tos")) {
619 if (!strcmp(node->value, "inherit")) {
620 flags |= TNL_F_TOS_INHERIT;
624 tos = strtol(node->value, &endptr, 0);
625 if (*endptr == '\0' && tos == (tos & IP_DSCP_MASK)) {
626 nl_msg_put_u8(options, OVS_TUNNEL_ATTR_TOS, tos);
628 VLOG_WARN("%s: invalid TOS %s", name, node->value);
631 } else if (!strcmp(node->key, "ttl")) {
632 if (!strcmp(node->value, "inherit")) {
633 flags |= TNL_F_TTL_INHERIT;
635 nl_msg_put_u8(options, OVS_TUNNEL_ATTR_TTL, atoi(node->value));
637 } else if (!strcmp(node->key, "csum") && is_gre) {
638 if (!strcmp(node->value, "true")) {
641 } else if (!strcmp(node->key, "df_inherit")) {
642 if (!strcmp(node->value, "true")) {
643 flags |= TNL_F_DF_INHERIT;
645 } else if (!strcmp(node->key, "df_default")) {
646 if (!strcmp(node->value, "false")) {
647 flags &= ~TNL_F_DF_DEFAULT;
649 } else if (!strcmp(node->key, "pmtud")) {
650 if (!strcmp(node->value, "false")) {
651 flags &= ~TNL_F_PMTUD;
653 } else if (!strcmp(node->key, "header_cache")) {
654 if (!strcmp(node->value, "false")) {
655 flags &= ~TNL_F_HDR_CACHE;
657 } else if (!strcmp(node->key, "peer_cert") && is_ipsec) {
658 if (smap_get(args, "certificate")) {
659 ipsec_mech_set = true;
661 const char *use_ssl_cert;
663 /* If the "use_ssl_cert" is true, then "certificate" and
664 * "private_key" will be pulled from the SSL table. The
665 * use of this option is strongly discouraged, since it
666 * will like be removed when multiple SSL configurations
667 * are supported by OVS.
669 use_ssl_cert = smap_get(args, "use_ssl_cert");
670 if (!use_ssl_cert || strcmp(use_ssl_cert, "true")) {
671 VLOG_ERR("%s: 'peer_cert' requires 'certificate' argument",
675 ipsec_mech_set = true;
677 } else if (!strcmp(node->key, "psk") && is_ipsec) {
678 ipsec_mech_set = true;
680 && (!strcmp(node->key, "certificate")
681 || !strcmp(node->key, "private_key")
682 || !strcmp(node->key, "use_ssl_cert"))) {
683 /* Ignore options not used by the netdev. */
684 } else if (!strcmp(node->key, "key") ||
685 !strcmp(node->key, "in_key") ||
686 !strcmp(node->key, "out_key")) {
687 /* Handled separately below. */
689 VLOG_WARN("%s: unknown %s argument '%s'", name, type, node->key);
694 static pid_t pid = 0;
696 char *file_name = xasprintf("%s/%s", ovs_rundir(),
697 "ovs-monitor-ipsec.pid");
698 pid = read_pidfile(file_name);
703 VLOG_ERR("%s: IPsec requires the ovs-monitor-ipsec daemon",
708 if (smap_get(args, "peer_cert") && smap_get(args, "psk")) {
709 VLOG_ERR("%s: cannot define both 'peer_cert' and 'psk'", name);
713 if (!ipsec_mech_set) {
714 VLOG_ERR("%s: IPsec requires an 'peer_cert' or psk' argument",
720 set_key(args, "in_key", OVS_TUNNEL_ATTR_IN_KEY, options);
721 set_key(args, "out_key", OVS_TUNNEL_ATTR_OUT_KEY, options);
724 VLOG_ERR("%s: %s type requires valid 'remote_ip' argument",
728 nl_msg_put_be32(options, OVS_TUNNEL_ATTR_DST_IPV4, daddr);
731 if (ip_is_multicast(daddr)) {
732 VLOG_WARN("%s: remote_ip is multicast, ignoring local_ip", name);
734 nl_msg_put_be32(options, OVS_TUNNEL_ATTR_SRC_IPV4, saddr);
738 nl_msg_put_u32(options, OVS_TUNNEL_ATTR_FLAGS, flags);
744 tnl_port_config_from_nlattr(const struct nlattr *options, size_t options_len,
745 struct nlattr *a[OVS_TUNNEL_ATTR_MAX + 1])
747 static const struct nl_policy ovs_tunnel_policy[] = {
748 [OVS_TUNNEL_ATTR_FLAGS] = { .type = NL_A_U32 },
749 [OVS_TUNNEL_ATTR_DST_IPV4] = { .type = NL_A_BE32 },
750 [OVS_TUNNEL_ATTR_SRC_IPV4] = { .type = NL_A_BE32, .optional = true },
751 [OVS_TUNNEL_ATTR_IN_KEY] = { .type = NL_A_BE64, .optional = true },
752 [OVS_TUNNEL_ATTR_OUT_KEY] = { .type = NL_A_BE64, .optional = true },
753 [OVS_TUNNEL_ATTR_TOS] = { .type = NL_A_U8, .optional = true },
754 [OVS_TUNNEL_ATTR_TTL] = { .type = NL_A_U8, .optional = true },
758 ofpbuf_use_const(&buf, options, options_len);
759 if (!nl_policy_parse(&buf, 0, ovs_tunnel_policy,
760 a, ARRAY_SIZE(ovs_tunnel_policy))) {
767 get_be64_or_zero(const struct nlattr *a)
769 return a ? ntohll(nl_attr_get_be64(a)) : 0;
773 unparse_tunnel_config(const char *name OVS_UNUSED, const char *type OVS_UNUSED,
774 const struct nlattr *options, size_t options_len,
777 struct nlattr *a[OVS_TUNNEL_ATTR_MAX + 1];
782 error = tnl_port_config_from_nlattr(options, options_len, a);
787 flags = nl_attr_get_u32(a[OVS_TUNNEL_ATTR_FLAGS]);
788 if (!(flags & TNL_F_HDR_CACHE) == !(flags & TNL_F_IPSEC)) {
789 smap_add(args, "header_cache",
790 flags & TNL_F_HDR_CACHE ? "true" : "false");
793 daddr = nl_attr_get_be32(a[OVS_TUNNEL_ATTR_DST_IPV4]);
794 smap_add_format(args, "remote_ip", IP_FMT, IP_ARGS(&daddr));
796 if (a[OVS_TUNNEL_ATTR_SRC_IPV4]) {
797 ovs_be32 saddr = nl_attr_get_be32(a[OVS_TUNNEL_ATTR_SRC_IPV4]);
798 smap_add_format(args, "local_ip", IP_FMT, IP_ARGS(&saddr));
801 if (!a[OVS_TUNNEL_ATTR_IN_KEY] && !a[OVS_TUNNEL_ATTR_OUT_KEY]) {
802 smap_add(args, "key", "flow");
804 uint64_t in_key = get_be64_or_zero(a[OVS_TUNNEL_ATTR_IN_KEY]);
805 uint64_t out_key = get_be64_or_zero(a[OVS_TUNNEL_ATTR_OUT_KEY]);
807 if (in_key && in_key == out_key) {
808 smap_add_format(args, "key", "%"PRIu64, in_key);
810 if (!a[OVS_TUNNEL_ATTR_IN_KEY]) {
811 smap_add(args, "in_key", "flow");
813 smap_add_format(args, "in_key", "%"PRIu64, in_key);
816 if (!a[OVS_TUNNEL_ATTR_OUT_KEY]) {
817 smap_add(args, "out_key", "flow");
818 } else if (out_key) {
819 smap_add_format(args, "out_key", "%"PRIu64, out_key);
824 if (flags & TNL_F_TTL_INHERIT) {
825 smap_add(args, "ttl", "inherit");
826 } else if (a[OVS_TUNNEL_ATTR_TTL]) {
827 int ttl = nl_attr_get_u8(a[OVS_TUNNEL_ATTR_TTL]);
828 smap_add_format(args, "ttl", "%d", ttl);
831 if (flags & TNL_F_TOS_INHERIT) {
832 smap_add(args, "tos", "inherit");
833 } else if (a[OVS_TUNNEL_ATTR_TOS]) {
834 int tos = nl_attr_get_u8(a[OVS_TUNNEL_ATTR_TOS]);
835 smap_add_format(args, "tos", "0x%x", tos);
838 if (flags & TNL_F_CSUM) {
839 smap_add(args, "csum", "true");
841 if (flags & TNL_F_DF_INHERIT) {
842 smap_add(args, "df_inherit", "true");
844 if (!(flags & TNL_F_DF_DEFAULT)) {
845 smap_add(args, "df_default", "false");
847 if (!(flags & TNL_F_PMTUD)) {
848 smap_add(args, "pmtud", "false");
855 parse_patch_config(const char *name, const char *type OVS_UNUSED,
856 const struct smap *args, struct ofpbuf *options)
860 peer = smap_get(args, "peer");
862 VLOG_ERR("%s: patch type requires valid 'peer' argument", name);
866 if (smap_count(args) > 1) {
867 VLOG_ERR("%s: patch type takes only a 'peer' argument", name);
871 if (strlen(peer) >= IFNAMSIZ) {
872 VLOG_ERR("%s: patch 'peer' arg too long", name);
876 if (!strcmp(name, peer)) {
877 VLOG_ERR("%s: patch peer must not be self", name);
881 nl_msg_put_string(options, OVS_PATCH_ATTR_PEER, peer);
887 unparse_patch_config(const char *name OVS_UNUSED, const char *type OVS_UNUSED,
888 const struct nlattr *options, size_t options_len,
891 static const struct nl_policy ovs_patch_policy[] = {
892 [OVS_PATCH_ATTR_PEER] = { .type = NL_A_STRING,
897 struct nlattr *a[ARRAY_SIZE(ovs_patch_policy)];
900 ofpbuf_use_const(&buf, options, options_len);
901 if (!nl_policy_parse(&buf, 0, ovs_patch_policy,
902 a, ARRAY_SIZE(ovs_patch_policy))) {
906 smap_add(args, "peer", nl_attr_get_string(a[OVS_PATCH_ATTR_PEER]));
910 #define VPORT_FUNCTIONS(GET_STATUS) \
915 netdev_vport_create, \
916 netdev_vport_destroy, \
917 netdev_vport_get_config, \
918 netdev_vport_set_config, \
921 netdev_vport_close, \
925 NULL, /* recv_wait */ \
928 netdev_vport_send, /* send */ \
929 NULL, /* send_wait */ \
931 netdev_vport_set_etheraddr, \
932 netdev_vport_get_etheraddr, \
933 NULL, /* get_mtu */ \
934 NULL, /* set_mtu */ \
935 NULL, /* get_ifindex */ \
936 NULL, /* get_carrier */ \
937 NULL, /* get_carrier_resets */ \
938 NULL, /* get_miimon */ \
939 netdev_vport_get_stats, \
940 netdev_vport_set_stats, \
942 NULL, /* get_features */ \
943 NULL, /* set_advertisements */ \
945 NULL, /* set_policing */ \
946 NULL, /* get_qos_types */ \
947 NULL, /* get_qos_capabilities */ \
948 NULL, /* get_qos */ \
949 NULL, /* set_qos */ \
950 NULL, /* get_queue */ \
951 NULL, /* set_queue */ \
952 NULL, /* delete_queue */ \
953 NULL, /* get_queue_stats */ \
954 NULL, /* dump_queues */ \
955 NULL, /* dump_queue_stats */ \
957 NULL, /* get_in4 */ \
958 NULL, /* set_in4 */ \
959 NULL, /* get_in6 */ \
960 NULL, /* add_router */ \
961 NULL, /* get_next_hop */ \
963 NULL, /* arp_lookup */ \
965 netdev_vport_update_flags, \
967 netdev_vport_change_seq
970 netdev_vport_register(void)
972 static const struct vport_class vport_classes[] = {
973 { OVS_VPORT_TYPE_GRE,
974 { "gre", VPORT_FUNCTIONS(netdev_vport_get_drv_info) },
975 parse_tunnel_config, unparse_tunnel_config },
977 { OVS_VPORT_TYPE_GRE,
978 { "ipsec_gre", VPORT_FUNCTIONS(netdev_vport_get_drv_info) },
979 parse_tunnel_config, unparse_tunnel_config },
981 { OVS_VPORT_TYPE_GRE64,
982 { "gre64", VPORT_FUNCTIONS(netdev_vport_get_drv_info) },
983 parse_tunnel_config, unparse_tunnel_config },
985 { OVS_VPORT_TYPE_GRE64,
986 { "ipsec_gre64", VPORT_FUNCTIONS(netdev_vport_get_drv_info) },
987 parse_tunnel_config, unparse_tunnel_config },
989 { OVS_VPORT_TYPE_CAPWAP,
990 { "capwap", VPORT_FUNCTIONS(netdev_vport_get_drv_info) },
991 parse_tunnel_config, unparse_tunnel_config },
993 { OVS_VPORT_TYPE_PATCH,
994 { "patch", VPORT_FUNCTIONS(NULL) },
995 parse_patch_config, unparse_patch_config }
1000 for (i = 0; i < ARRAY_SIZE(vport_classes); i++) {
1001 netdev_register_provider(&vport_classes[i].netdev_class);