2 * Copyright (c) 2010, 2011 Nicira Networks.
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 shash *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 ? OVS_VPORT_TYPE_NETDEV
135 : OVS_VPORT_TYPE_UNSPEC);
139 netdev_vport_get_netdev_type(const struct dpif_linux_vport *vport)
141 struct nlattr *a[OVS_TUNNEL_ATTR_MAX + 1];
143 switch (vport->type) {
144 case OVS_VPORT_TYPE_UNSPEC:
147 case OVS_VPORT_TYPE_NETDEV:
150 case OVS_VPORT_TYPE_INTERNAL:
153 case OVS_VPORT_TYPE_PATCH:
156 case OVS_VPORT_TYPE_GRE:
157 if (tnl_port_config_from_nlattr(vport->options, vport->options_len,
161 return (nl_attr_get_u32(a[OVS_TUNNEL_ATTR_FLAGS]) & TNL_F_IPSEC
162 ? "ipsec_gre" : "gre");
164 case OVS_VPORT_TYPE_CAPWAP:
167 case __OVS_VPORT_TYPE_MAX:
171 VLOG_WARN_RL(&rl, "dp%d: port `%s' has unsupported type %u",
172 vport->dp_ifindex, vport->name, (unsigned int) vport->type);
177 netdev_vport_create(const struct netdev_class *netdev_class, const char *name,
178 struct netdev_dev **netdev_devp)
180 struct netdev_dev_vport *dev;
182 dev = xmalloc(sizeof *dev);
183 netdev_dev_init(&dev->netdev_dev, name, netdev_class);
185 dev->dp_ifindex = -1;
186 dev->port_no = UINT32_MAX;
189 *netdev_devp = &dev->netdev_dev;
190 route_table_register();
196 netdev_vport_destroy(struct netdev_dev *netdev_dev_)
198 struct netdev_dev_vport *netdev_dev = netdev_dev_vport_cast(netdev_dev_);
200 route_table_unregister();
205 netdev_vport_open(struct netdev_dev *netdev_dev_, struct netdev **netdevp)
207 struct netdev_vport *netdev;
209 netdev = xmalloc(sizeof *netdev);
210 netdev_init(&netdev->netdev, netdev_dev_);
212 *netdevp = &netdev->netdev;
217 netdev_vport_close(struct netdev *netdev_)
219 struct netdev_vport *netdev = netdev_vport_cast(netdev_);
224 netdev_vport_get_config(struct netdev_dev *dev_, struct shash *args)
226 const struct netdev_class *netdev_class = netdev_dev_get_class(dev_);
227 const struct vport_class *vport_class = vport_class_cast(netdev_class);
228 struct netdev_dev_vport *dev = netdev_dev_vport_cast(dev_);
229 const char *name = netdev_dev_get_name(dev_);
233 struct dpif_linux_vport reply;
236 error = dpif_linux_vport_get(name, &reply, &buf);
238 VLOG_ERR_RL(&rl, "%s: vport query failed (%s)",
239 name, strerror(error));
243 dev->options = ofpbuf_clone_data(reply.options, reply.options_len);
244 dev->dp_ifindex = reply.dp_ifindex;
245 dev->port_no = reply.port_no;
249 error = vport_class->unparse_config(name, netdev_class->type,
254 VLOG_ERR_RL(&rl, "%s: failed to parse kernel config (%s)",
255 name, strerror(error));
261 netdev_vport_set_config(struct netdev_dev *dev_, const struct shash *args)
263 const struct netdev_class *netdev_class = netdev_dev_get_class(dev_);
264 const struct vport_class *vport_class = vport_class_cast(netdev_class);
265 struct netdev_dev_vport *dev = netdev_dev_vport_cast(dev_);
266 const char *name = netdev_dev_get_name(dev_);
267 struct ofpbuf *options;
270 options = ofpbuf_new(64);
271 error = vport_class->parse_config(name, netdev_dev_get_type(dev_),
275 || options->size != dev->options->size
276 || memcmp(options->data, dev->options->data, options->size))) {
277 struct dpif_linux_vport vport;
279 dpif_linux_vport_init(&vport);
280 vport.cmd = OVS_VPORT_CMD_SET;
282 vport.options = options->data;
283 vport.options_len = options->size;
284 error = dpif_linux_vport_transact(&vport, NULL, NULL);
285 if (!error || error == ENODEV) {
286 /* Either reconfiguration succeeded or this vport is not installed
287 * in the kernel (e.g. it hasn't been added to a dpif yet with
288 * dpif_port_add()). */
289 ofpbuf_delete(dev->options);
290 dev->options = options;
295 ofpbuf_delete(options);
301 netdev_vport_send(struct netdev *netdev, const void *data, size_t size)
303 struct netdev_dev *dev_ = netdev_get_dev(netdev);
304 struct netdev_dev_vport *dev = netdev_dev_vport_cast(dev_);
306 if (dev->dp_ifindex == -1) {
307 const char *name = netdev_get_name(netdev);
308 struct dpif_linux_vport reply;
312 error = dpif_linux_vport_get(name, &reply, &buf);
314 VLOG_ERR_RL(&rl, "%s: failed to query vport for send (%s)",
315 name, strerror(error));
318 dev->dp_ifindex = reply.dp_ifindex;
319 dev->port_no = reply.port_no;
323 return dpif_linux_vport_send(dev->dp_ifindex, dev->port_no, data, size);
327 netdev_vport_set_etheraddr(struct netdev *netdev,
328 const uint8_t mac[ETH_ADDR_LEN])
330 struct dpif_linux_vport vport;
333 dpif_linux_vport_init(&vport);
334 vport.cmd = OVS_VPORT_CMD_SET;
335 vport.name = netdev_get_name(netdev);
338 error = dpif_linux_vport_transact(&vport, NULL, NULL);
340 netdev_vport_poll_notify(netdev);
346 netdev_vport_get_etheraddr(const struct netdev *netdev,
347 uint8_t mac[ETH_ADDR_LEN])
349 struct dpif_linux_vport reply;
353 error = dpif_linux_vport_get(netdev_get_name(netdev), &reply, &buf);
356 memcpy(mac, reply.address, ETH_ADDR_LEN);
365 /* Copies 'src' into 'dst', performing format conversion in the process.
367 * 'src' is allowed to be misaligned. */
369 netdev_stats_from_ovs_vport_stats(struct netdev_stats *dst,
370 const struct ovs_vport_stats *src)
372 dst->rx_packets = get_unaligned_u64(&src->rx_packets);
373 dst->tx_packets = get_unaligned_u64(&src->tx_packets);
374 dst->rx_bytes = get_unaligned_u64(&src->rx_bytes);
375 dst->tx_bytes = get_unaligned_u64(&src->tx_bytes);
376 dst->rx_errors = get_unaligned_u64(&src->rx_errors);
377 dst->tx_errors = get_unaligned_u64(&src->tx_errors);
378 dst->rx_dropped = get_unaligned_u64(&src->rx_dropped);
379 dst->tx_dropped = get_unaligned_u64(&src->tx_dropped);
382 dst->rx_length_errors = 0;
383 dst->rx_over_errors = 0;
384 dst->rx_crc_errors = 0;
385 dst->rx_frame_errors = 0;
386 dst->rx_fifo_errors = 0;
387 dst->rx_missed_errors = 0;
388 dst->tx_aborted_errors = 0;
389 dst->tx_carrier_errors = 0;
390 dst->tx_fifo_errors = 0;
391 dst->tx_heartbeat_errors = 0;
392 dst->tx_window_errors = 0;
395 /* Copies 'src' into 'dst', performing format conversion in the process. */
397 netdev_stats_to_ovs_vport_stats(struct ovs_vport_stats *dst,
398 const struct netdev_stats *src)
400 dst->rx_packets = src->rx_packets;
401 dst->tx_packets = src->tx_packets;
402 dst->rx_bytes = src->rx_bytes;
403 dst->tx_bytes = src->tx_bytes;
404 dst->rx_errors = src->rx_errors;
405 dst->tx_errors = src->tx_errors;
406 dst->rx_dropped = src->rx_dropped;
407 dst->tx_dropped = src->tx_dropped;
411 netdev_vport_get_stats(const struct netdev *netdev, struct netdev_stats *stats)
413 struct dpif_linux_vport reply;
417 error = dpif_linux_vport_get(netdev_get_name(netdev), &reply, &buf);
420 } else if (!reply.stats) {
425 netdev_stats_from_ovs_vport_stats(stats, reply.stats);
433 netdev_vport_set_stats(struct netdev *netdev, const struct netdev_stats *stats)
435 struct ovs_vport_stats rtnl_stats;
436 struct dpif_linux_vport vport;
439 netdev_stats_to_ovs_vport_stats(&rtnl_stats, stats);
441 dpif_linux_vport_init(&vport);
442 vport.cmd = OVS_VPORT_CMD_SET;
443 vport.name = netdev_get_name(netdev);
444 vport.stats = &rtnl_stats;
446 err = dpif_linux_vport_transact(&vport, NULL, NULL);
448 /* If the vport layer doesn't know about the device, that doesn't mean it
449 * doesn't exist (after all were able to open it when netdev_open() was
450 * called), it just means that it isn't attached and we'll be getting
451 * stats a different way. */
460 netdev_vport_get_status(const struct netdev *netdev, struct shash *sh)
462 const char *iface = netdev_vport_get_tnl_iface(netdev);
465 struct netdev *egress_netdev;
467 shash_add(sh, "tunnel_egress_iface", xstrdup(iface));
469 if (!netdev_open(iface, "system", &egress_netdev)) {
470 shash_add(sh, "tunnel_egress_iface_carrier",
471 xstrdup(netdev_get_carrier(egress_netdev)
473 netdev_close(egress_netdev);
481 netdev_vport_update_flags(struct netdev *netdev OVS_UNUSED,
482 enum netdev_flags off, enum netdev_flags on OVS_UNUSED,
483 enum netdev_flags *old_flagsp)
485 if (off & (NETDEV_UP | NETDEV_PROMISC)) {
489 *old_flagsp = NETDEV_UP | NETDEV_PROMISC;
494 netdev_vport_change_seq(const struct netdev *netdev)
496 return netdev_dev_vport_cast(netdev_get_dev(netdev))->change_seq;
500 netdev_vport_run(void)
506 netdev_vport_wait(void)
511 /* get_tnl_iface() implementation. */
513 netdev_vport_get_tnl_iface(const struct netdev *netdev)
515 struct nlattr *a[OVS_TUNNEL_ATTR_MAX + 1];
517 struct netdev_dev_vport *ndv;
518 static char name[IFNAMSIZ];
520 ndv = netdev_dev_vport_cast(netdev_get_dev(netdev));
521 if (tnl_port_config_from_nlattr(ndv->options->data, ndv->options->size,
525 route = nl_attr_get_be32(a[OVS_TUNNEL_ATTR_DST_IPV4]);
527 if (route_table_get_name(route, name)) {
534 /* Helper functions. */
537 netdev_vport_poll_notify(const struct netdev *netdev)
539 struct netdev_dev_vport *ndv;
541 ndv = netdev_dev_vport_cast(netdev_get_dev(netdev));
544 if (!ndv->change_seq) {
549 /* Code specific to individual vport types. */
552 set_key(const struct shash *args, const char *name, uint16_t type,
553 struct ofpbuf *options)
557 s = shash_find_data(args, name);
559 s = shash_find_data(args, "key");
565 if (!strcmp(s, "flow")) {
566 /* This is the default if no attribute is present. */
568 nl_msg_put_be64(options, type, htonll(strtoull(s, NULL, 0)));
573 parse_tunnel_config(const char *name, const char *type,
574 const struct shash *args, struct ofpbuf *options)
577 bool is_ipsec = false;
578 struct shash_node *node;
579 bool ipsec_mech_set = false;
580 ovs_be32 daddr = htonl(0);
583 flags = TNL_F_DF_DEFAULT | TNL_F_PMTUD | TNL_F_HDR_CACHE;
584 if (!strcmp(type, "gre")) {
586 } else if (!strcmp(type, "ipsec_gre")) {
589 flags |= TNL_F_IPSEC;
590 flags &= ~TNL_F_HDR_CACHE;
593 SHASH_FOR_EACH (node, args) {
594 if (!strcmp(node->name, "remote_ip")) {
595 struct in_addr in_addr;
596 if (lookup_ip(node->data, &in_addr)) {
597 VLOG_WARN("%s: bad %s 'remote_ip'", name, type);
599 daddr = in_addr.s_addr;
601 } else if (!strcmp(node->name, "local_ip")) {
602 struct in_addr in_addr;
603 if (lookup_ip(node->data, &in_addr)) {
604 VLOG_WARN("%s: bad %s 'local_ip'", name, type);
606 nl_msg_put_be32(options, OVS_TUNNEL_ATTR_SRC_IPV4,
609 } else if (!strcmp(node->name, "tos")) {
610 if (!strcmp(node->data, "inherit")) {
611 flags |= TNL_F_TOS_INHERIT;
613 nl_msg_put_u8(options, OVS_TUNNEL_ATTR_TOS, atoi(node->data));
615 } else if (!strcmp(node->name, "ttl")) {
616 if (!strcmp(node->data, "inherit")) {
617 flags |= TNL_F_TTL_INHERIT;
619 nl_msg_put_u8(options, OVS_TUNNEL_ATTR_TTL, atoi(node->data));
621 } else if (!strcmp(node->name, "csum") && is_gre) {
622 if (!strcmp(node->data, "true")) {
625 } else if (!strcmp(node->name, "df_inherit")) {
626 if (!strcmp(node->data, "true")) {
627 flags |= TNL_F_DF_INHERIT;
629 } else if (!strcmp(node->name, "df_default")) {
630 if (!strcmp(node->data, "false")) {
631 flags &= ~TNL_F_DF_DEFAULT;
633 } else if (!strcmp(node->name, "pmtud")) {
634 if (!strcmp(node->data, "false")) {
635 flags &= ~TNL_F_PMTUD;
637 } else if (!strcmp(node->name, "header_cache")) {
638 if (!strcmp(node->data, "false")) {
639 flags &= ~TNL_F_HDR_CACHE;
641 } else if (!strcmp(node->name, "peer_cert") && is_ipsec) {
642 if (shash_find(args, "certificate")) {
643 ipsec_mech_set = true;
645 const char *use_ssl_cert;
647 /* If the "use_ssl_cert" is true, then "certificate" and
648 * "private_key" will be pulled from the SSL table. The
649 * use of this option is strongly discouraged, since it
650 * will like be removed when multiple SSL configurations
651 * are supported by OVS.
653 use_ssl_cert = shash_find_data(args, "use_ssl_cert");
654 if (!use_ssl_cert || strcmp(use_ssl_cert, "true")) {
655 VLOG_ERR("%s: 'peer_cert' requires 'certificate' argument",
659 ipsec_mech_set = true;
661 } else if (!strcmp(node->name, "psk") && is_ipsec) {
662 ipsec_mech_set = true;
664 && (!strcmp(node->name, "certificate")
665 || !strcmp(node->name, "private_key")
666 || !strcmp(node->name, "use_ssl_cert"))) {
667 /* Ignore options not used by the netdev. */
668 } else if (!strcmp(node->name, "key") ||
669 !strcmp(node->name, "in_key") ||
670 !strcmp(node->name, "out_key")) {
671 /* Handled separately below. */
673 VLOG_WARN("%s: unknown %s argument '%s'", name, type, node->name);
678 char *file_name = xasprintf("%s/%s", ovs_rundir(),
679 "ovs-monitor-ipsec.pid");
680 pid_t pid = read_pidfile(file_name);
683 VLOG_ERR("%s: IPsec requires the ovs-monitor-ipsec daemon",
688 if (shash_find(args, "peer_cert") && shash_find(args, "psk")) {
689 VLOG_ERR("%s: cannot define both 'peer_cert' and 'psk'", name);
693 if (!ipsec_mech_set) {
694 VLOG_ERR("%s: IPsec requires an 'peer_cert' or psk' argument",
700 set_key(args, "in_key", OVS_TUNNEL_ATTR_IN_KEY, options);
701 set_key(args, "out_key", OVS_TUNNEL_ATTR_OUT_KEY, options);
704 VLOG_ERR("%s: %s type requires valid 'remote_ip' argument",
708 nl_msg_put_be32(options, OVS_TUNNEL_ATTR_DST_IPV4, daddr);
710 nl_msg_put_u32(options, OVS_TUNNEL_ATTR_FLAGS, flags);
716 tnl_port_config_from_nlattr(const struct nlattr *options, size_t options_len,
717 struct nlattr *a[OVS_TUNNEL_ATTR_MAX + 1])
719 static const struct nl_policy ovs_tunnel_policy[] = {
720 [OVS_TUNNEL_ATTR_FLAGS] = { .type = NL_A_U32 },
721 [OVS_TUNNEL_ATTR_DST_IPV4] = { .type = NL_A_BE32 },
722 [OVS_TUNNEL_ATTR_SRC_IPV4] = { .type = NL_A_BE32, .optional = true },
723 [OVS_TUNNEL_ATTR_IN_KEY] = { .type = NL_A_BE64, .optional = true },
724 [OVS_TUNNEL_ATTR_OUT_KEY] = { .type = NL_A_BE64, .optional = true },
725 [OVS_TUNNEL_ATTR_TOS] = { .type = NL_A_U8, .optional = true },
726 [OVS_TUNNEL_ATTR_TTL] = { .type = NL_A_U8, .optional = true },
730 ofpbuf_use_const(&buf, options, options_len);
731 if (!nl_policy_parse(&buf, 0, ovs_tunnel_policy,
732 a, ARRAY_SIZE(ovs_tunnel_policy))) {
739 get_be64_or_zero(const struct nlattr *a)
741 return a ? ntohll(nl_attr_get_be64(a)) : 0;
745 unparse_tunnel_config(const char *name OVS_UNUSED, const char *type OVS_UNUSED,
746 const struct nlattr *options, size_t options_len,
749 struct nlattr *a[OVS_TUNNEL_ATTR_MAX + 1];
754 error = tnl_port_config_from_nlattr(options, options_len, a);
759 flags = nl_attr_get_u32(a[OVS_TUNNEL_ATTR_FLAGS]);
760 if (!(flags & TNL_F_HDR_CACHE) == !(flags & TNL_F_IPSEC)) {
761 smap_add(args, "header_cache",
762 flags & TNL_F_HDR_CACHE ? "true" : "false");
765 daddr = nl_attr_get_be32(a[OVS_TUNNEL_ATTR_DST_IPV4]);
766 shash_add(args, "remote_ip", xasprintf(IP_FMT, IP_ARGS(&daddr)));
768 if (a[OVS_TUNNEL_ATTR_SRC_IPV4]) {
769 ovs_be32 saddr = nl_attr_get_be32(a[OVS_TUNNEL_ATTR_SRC_IPV4]);
770 shash_add(args, "local_ip", xasprintf(IP_FMT, IP_ARGS(&saddr)));
773 if (!a[OVS_TUNNEL_ATTR_IN_KEY] && !a[OVS_TUNNEL_ATTR_OUT_KEY]) {
774 smap_add(args, "key", "flow");
776 uint64_t in_key = get_be64_or_zero(a[OVS_TUNNEL_ATTR_IN_KEY]);
777 uint64_t out_key = get_be64_or_zero(a[OVS_TUNNEL_ATTR_OUT_KEY]);
779 if (in_key && in_key == out_key) {
780 shash_add(args, "key", xasprintf("%"PRIu64, in_key));
782 if (!a[OVS_TUNNEL_ATTR_IN_KEY]) {
783 smap_add(args, "in_key", "flow");
785 shash_add(args, "in_key", xasprintf("%"PRIu64, in_key));
788 if (!a[OVS_TUNNEL_ATTR_OUT_KEY]) {
789 smap_add(args, "out_key", "flow");
790 } else if (out_key) {
791 shash_add(args, "out_key", xasprintf("%"PRIu64, out_key));
796 if (flags & TNL_F_TTL_INHERIT) {
797 smap_add(args, "tos", "inherit");
798 } else if (a[OVS_TUNNEL_ATTR_TTL]) {
799 int ttl = nl_attr_get_u8(a[OVS_TUNNEL_ATTR_TTL]);
800 shash_add(args, "tos", xasprintf("%d", ttl));
803 if (flags & TNL_F_TOS_INHERIT) {
804 smap_add(args, "tos", "inherit");
805 } else if (a[OVS_TUNNEL_ATTR_TOS]) {
806 int tos = nl_attr_get_u8(a[OVS_TUNNEL_ATTR_TOS]);
807 shash_add(args, "tos", xasprintf("%d", tos));
810 if (flags & TNL_F_CSUM) {
811 smap_add(args, "csum", "true");
813 if (flags & TNL_F_DF_INHERIT) {
814 smap_add(args, "df_inherit", "true");
816 if (!(flags & TNL_F_DF_DEFAULT)) {
817 smap_add(args, "df_default", "false");
819 if (!(flags & TNL_F_PMTUD)) {
820 smap_add(args, "pmtud", "false");
827 parse_patch_config(const char *name, const char *type OVS_UNUSED,
828 const struct shash *args, struct ofpbuf *options)
832 peer = shash_find_data(args, "peer");
834 VLOG_ERR("%s: patch type requires valid 'peer' argument", name);
838 if (shash_count(args) > 1) {
839 VLOG_ERR("%s: patch type takes only a 'peer' argument", name);
843 if (strlen(peer) >= IFNAMSIZ) {
844 VLOG_ERR("%s: patch 'peer' arg too long", name);
848 if (!strcmp(name, peer)) {
849 VLOG_ERR("%s: patch peer must not be self", name);
853 nl_msg_put_string(options, OVS_PATCH_ATTR_PEER, peer);
859 unparse_patch_config(const char *name OVS_UNUSED, const char *type OVS_UNUSED,
860 const struct nlattr *options, size_t options_len,
863 static const struct nl_policy ovs_patch_policy[] = {
864 [OVS_PATCH_ATTR_PEER] = { .type = NL_A_STRING,
869 struct nlattr *a[ARRAY_SIZE(ovs_patch_policy)];
872 ofpbuf_use_const(&buf, options, options_len);
873 if (!nl_policy_parse(&buf, 0, ovs_patch_policy,
874 a, ARRAY_SIZE(ovs_patch_policy))) {
878 smap_add(args, "peer", nl_attr_get_string(a[OVS_PATCH_ATTR_PEER]));
882 #define VPORT_FUNCTIONS(GET_STATUS) \
887 netdev_vport_create, \
888 netdev_vport_destroy, \
889 netdev_vport_get_config, \
890 netdev_vport_set_config, \
893 netdev_vport_close, \
897 NULL, /* recv_wait */ \
900 netdev_vport_send, /* send */ \
901 NULL, /* send_wait */ \
903 netdev_vport_set_etheraddr, \
904 netdev_vport_get_etheraddr, \
905 NULL, /* get_mtu */ \
906 NULL, /* set_mtu */ \
907 NULL, /* get_ifindex */ \
908 NULL, /* get_carrier */ \
909 NULL, /* get_carrier_resets */ \
910 NULL, /* get_miimon */ \
911 netdev_vport_get_stats, \
912 netdev_vport_set_stats, \
914 NULL, /* get_features */ \
915 NULL, /* set_advertisements */ \
916 NULL, /* get_vlan_vid */ \
918 NULL, /* set_policing */ \
919 NULL, /* get_qos_types */ \
920 NULL, /* get_qos_capabilities */ \
921 NULL, /* get_qos */ \
922 NULL, /* set_qos */ \
923 NULL, /* get_queue */ \
924 NULL, /* set_queue */ \
925 NULL, /* delete_queue */ \
926 NULL, /* get_queue_stats */ \
927 NULL, /* dump_queues */ \
928 NULL, /* dump_queue_stats */ \
930 NULL, /* get_in4 */ \
931 NULL, /* set_in4 */ \
932 NULL, /* get_in6 */ \
933 NULL, /* add_router */ \
934 NULL, /* get_next_hop */ \
936 NULL, /* arp_lookup */ \
938 netdev_vport_update_flags, \
940 netdev_vport_change_seq
943 netdev_vport_register(void)
945 static const struct vport_class vport_classes[] = {
946 { OVS_VPORT_TYPE_GRE,
947 { "gre", VPORT_FUNCTIONS(netdev_vport_get_status) },
948 parse_tunnel_config, unparse_tunnel_config },
950 { OVS_VPORT_TYPE_GRE,
951 { "ipsec_gre", VPORT_FUNCTIONS(netdev_vport_get_status) },
952 parse_tunnel_config, unparse_tunnel_config },
954 { OVS_VPORT_TYPE_CAPWAP,
955 { "capwap", VPORT_FUNCTIONS(netdev_vport_get_status) },
956 parse_tunnel_config, unparse_tunnel_config },
958 { OVS_VPORT_TYPE_PATCH,
959 { "patch", VPORT_FUNCTIONS(NULL) },
960 parse_patch_config, unparse_patch_config }
965 for (i = 0; i < ARRAY_SIZE(vport_classes); i++) {
966 netdev_register_provider(&vport_classes[i].netdev_class);