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 get_u32_or_zero(const struct nlattr *a)
142 return a ? nl_attr_get_u32(a) : 0;
146 netdev_vport_get_netdev_type(const struct dpif_linux_vport *vport)
148 struct nlattr *a[OVS_TUNNEL_ATTR_MAX + 1];
150 switch (vport->type) {
151 case OVS_VPORT_TYPE_UNSPEC:
154 case OVS_VPORT_TYPE_NETDEV:
157 case OVS_VPORT_TYPE_INTERNAL:
160 case OVS_VPORT_TYPE_PATCH:
163 case OVS_VPORT_TYPE_GRE:
164 if (tnl_port_config_from_nlattr(vport->options, vport->options_len,
168 return (get_u32_or_zero(a[OVS_TUNNEL_ATTR_FLAGS]) & TNL_F_IPSEC
169 ? "ipsec_gre" : "gre");
171 case OVS_VPORT_TYPE_GRE64:
172 if (tnl_port_config_from_nlattr(vport->options, vport->options_len,
176 return (get_u32_or_zero(a[OVS_TUNNEL_ATTR_FLAGS]) & TNL_F_IPSEC
177 ? "ipsec_gre64" : "gre64");
179 case OVS_VPORT_TYPE_CAPWAP:
182 case OVS_VPORT_TYPE_FT_GRE:
183 case __OVS_VPORT_TYPE_MAX:
187 VLOG_WARN_RL(&rl, "dp%d: port `%s' has unsupported type %u",
188 vport->dp_ifindex, vport->name, (unsigned int) vport->type);
193 netdev_vport_create(const struct netdev_class *netdev_class, const char *name,
194 struct netdev_dev **netdev_devp)
196 struct netdev_dev_vport *dev;
198 dev = xmalloc(sizeof *dev);
199 netdev_dev_init(&dev->netdev_dev, name, netdev_class);
201 dev->dp_ifindex = -1;
202 dev->port_no = UINT32_MAX;
205 *netdev_devp = &dev->netdev_dev;
206 route_table_register();
212 netdev_vport_destroy(struct netdev_dev *netdev_dev_)
214 struct netdev_dev_vport *netdev_dev = netdev_dev_vport_cast(netdev_dev_);
216 ofpbuf_delete(netdev_dev->options);
217 route_table_unregister();
222 netdev_vport_open(struct netdev_dev *netdev_dev_, struct netdev **netdevp)
224 struct netdev_vport *netdev;
226 netdev = xmalloc(sizeof *netdev);
227 netdev_init(&netdev->netdev, netdev_dev_);
229 *netdevp = &netdev->netdev;
234 netdev_vport_close(struct netdev *netdev_)
236 struct netdev_vport *netdev = netdev_vport_cast(netdev_);
241 netdev_vport_get_config(struct netdev_dev *dev_, struct smap *args)
243 const struct netdev_class *netdev_class = netdev_dev_get_class(dev_);
244 const struct vport_class *vport_class = vport_class_cast(netdev_class);
245 struct netdev_dev_vport *dev = netdev_dev_vport_cast(dev_);
246 const char *name = netdev_dev_get_name(dev_);
250 struct dpif_linux_vport reply;
253 error = dpif_linux_vport_get(name, &reply, &buf);
255 VLOG_ERR_RL(&rl, "%s: vport query failed (%s)",
256 name, strerror(error));
260 dev->options = ofpbuf_clone_data(reply.options, reply.options_len);
261 dev->dp_ifindex = reply.dp_ifindex;
262 dev->port_no = reply.port_no;
266 error = vport_class->unparse_config(name, netdev_class->type,
271 VLOG_ERR_RL(&rl, "%s: failed to parse kernel config (%s)",
272 name, strerror(error));
278 netdev_vport_set_config(struct netdev_dev *dev_, const struct smap *args)
280 const struct netdev_class *netdev_class = netdev_dev_get_class(dev_);
281 const struct vport_class *vport_class = vport_class_cast(netdev_class);
282 struct netdev_dev_vport *dev = netdev_dev_vport_cast(dev_);
283 const char *name = netdev_dev_get_name(dev_);
284 struct ofpbuf *options;
287 options = ofpbuf_new(64);
288 error = vport_class->parse_config(name, netdev_dev_get_type(dev_),
292 || options->size != dev->options->size
293 || memcmp(options->data, dev->options->data, options->size))) {
294 struct dpif_linux_vport vport;
296 dpif_linux_vport_init(&vport);
297 vport.cmd = OVS_VPORT_CMD_SET;
299 vport.options = options->data;
300 vport.options_len = options->size;
301 error = dpif_linux_vport_transact(&vport, NULL, NULL);
302 if (!error || error == ENODEV) {
303 /* Either reconfiguration succeeded or this vport is not installed
304 * in the kernel (e.g. it hasn't been added to a dpif yet with
305 * dpif_port_add()). */
306 ofpbuf_delete(dev->options);
307 dev->options = options;
312 ofpbuf_delete(options);
318 netdev_vport_send(struct netdev *netdev, const void *data, size_t size)
320 struct netdev_dev *dev_ = netdev_get_dev(netdev);
321 struct netdev_dev_vport *dev = netdev_dev_vport_cast(dev_);
323 if (dev->dp_ifindex == -1) {
324 const char *name = netdev_get_name(netdev);
325 struct dpif_linux_vport reply;
329 error = dpif_linux_vport_get(name, &reply, &buf);
331 VLOG_ERR_RL(&rl, "%s: failed to query vport for send (%s)",
332 name, strerror(error));
335 dev->dp_ifindex = reply.dp_ifindex;
336 dev->port_no = reply.port_no;
340 return dpif_linux_vport_send(dev->dp_ifindex, dev->port_no, data, size);
344 netdev_vport_set_etheraddr(struct netdev *netdev,
345 const uint8_t mac[ETH_ADDR_LEN])
347 struct dpif_linux_vport vport;
350 dpif_linux_vport_init(&vport);
351 vport.cmd = OVS_VPORT_CMD_SET;
352 vport.name = netdev_get_name(netdev);
355 error = dpif_linux_vport_transact(&vport, NULL, NULL);
357 netdev_vport_poll_notify(netdev);
363 netdev_vport_get_etheraddr(const struct netdev *netdev,
364 uint8_t mac[ETH_ADDR_LEN])
366 struct dpif_linux_vport reply;
370 error = dpif_linux_vport_get(netdev_get_name(netdev), &reply, &buf);
373 memcpy(mac, reply.address, ETH_ADDR_LEN);
382 /* Copies 'src' into 'dst', performing format conversion in the process.
384 * 'src' is allowed to be misaligned. */
386 netdev_stats_from_ovs_vport_stats(struct netdev_stats *dst,
387 const struct ovs_vport_stats *src)
389 dst->rx_packets = get_unaligned_u64(&src->rx_packets);
390 dst->tx_packets = get_unaligned_u64(&src->tx_packets);
391 dst->rx_bytes = get_unaligned_u64(&src->rx_bytes);
392 dst->tx_bytes = get_unaligned_u64(&src->tx_bytes);
393 dst->rx_errors = get_unaligned_u64(&src->rx_errors);
394 dst->tx_errors = get_unaligned_u64(&src->tx_errors);
395 dst->rx_dropped = get_unaligned_u64(&src->rx_dropped);
396 dst->tx_dropped = get_unaligned_u64(&src->tx_dropped);
399 dst->rx_length_errors = 0;
400 dst->rx_over_errors = 0;
401 dst->rx_crc_errors = 0;
402 dst->rx_frame_errors = 0;
403 dst->rx_fifo_errors = 0;
404 dst->rx_missed_errors = 0;
405 dst->tx_aborted_errors = 0;
406 dst->tx_carrier_errors = 0;
407 dst->tx_fifo_errors = 0;
408 dst->tx_heartbeat_errors = 0;
409 dst->tx_window_errors = 0;
412 /* Copies 'src' into 'dst', performing format conversion in the process. */
414 netdev_stats_to_ovs_vport_stats(struct ovs_vport_stats *dst,
415 const struct netdev_stats *src)
417 dst->rx_packets = src->rx_packets;
418 dst->tx_packets = src->tx_packets;
419 dst->rx_bytes = src->rx_bytes;
420 dst->tx_bytes = src->tx_bytes;
421 dst->rx_errors = src->rx_errors;
422 dst->tx_errors = src->tx_errors;
423 dst->rx_dropped = src->rx_dropped;
424 dst->tx_dropped = src->tx_dropped;
428 netdev_vport_get_stats(const struct netdev *netdev, struct netdev_stats *stats)
430 struct dpif_linux_vport reply;
434 error = dpif_linux_vport_get(netdev_get_name(netdev), &reply, &buf);
437 } else if (!reply.stats) {
442 netdev_stats_from_ovs_vport_stats(stats, reply.stats);
450 netdev_vport_set_stats(struct netdev *netdev, const struct netdev_stats *stats)
452 struct ovs_vport_stats rtnl_stats;
453 struct dpif_linux_vport vport;
456 netdev_stats_to_ovs_vport_stats(&rtnl_stats, stats);
458 dpif_linux_vport_init(&vport);
459 vport.cmd = OVS_VPORT_CMD_SET;
460 vport.name = netdev_get_name(netdev);
461 vport.stats = &rtnl_stats;
463 err = dpif_linux_vport_transact(&vport, NULL, NULL);
465 /* If the vport layer doesn't know about the device, that doesn't mean it
466 * doesn't exist (after all were able to open it when netdev_open() was
467 * called), it just means that it isn't attached and we'll be getting
468 * stats a different way. */
477 netdev_vport_get_drv_info(const struct netdev *netdev, struct smap *smap)
479 const char *iface = netdev_vport_get_tnl_iface(netdev);
482 struct netdev *egress_netdev;
484 smap_add(smap, "tunnel_egress_iface", iface);
486 if (!netdev_open(iface, "system", &egress_netdev)) {
487 smap_add(smap, "tunnel_egress_iface_carrier",
488 netdev_get_carrier(egress_netdev) ? "up" : "down");
489 netdev_close(egress_netdev);
497 netdev_vport_update_flags(struct netdev *netdev OVS_UNUSED,
498 enum netdev_flags off, enum netdev_flags on OVS_UNUSED,
499 enum netdev_flags *old_flagsp)
501 if (off & (NETDEV_UP | NETDEV_PROMISC)) {
505 *old_flagsp = NETDEV_UP | NETDEV_PROMISC;
510 netdev_vport_change_seq(const struct netdev *netdev)
512 return netdev_dev_vport_cast(netdev_get_dev(netdev))->change_seq;
516 netdev_vport_run(void)
522 netdev_vport_wait(void)
527 /* get_tnl_iface() implementation. */
529 netdev_vport_get_tnl_iface(const struct netdev *netdev)
531 struct nlattr *a[OVS_TUNNEL_ATTR_MAX + 1];
532 struct netdev_dev_vport *ndv;
533 static char name[IFNAMSIZ];
535 ndv = netdev_dev_vport_cast(netdev_get_dev(netdev));
536 if (tnl_port_config_from_nlattr(ndv->options->data, ndv->options->size,
540 if (a[OVS_TUNNEL_ATTR_DST_IPV4]) {
541 ovs_be32 route = nl_attr_get_be32(a[OVS_TUNNEL_ATTR_DST_IPV4]);
543 if (route_table_get_name(route, name)) {
550 /* Helper functions. */
553 netdev_vport_poll_notify(const struct netdev *netdev)
555 struct netdev_dev_vport *ndv;
557 ndv = netdev_dev_vport_cast(netdev_get_dev(netdev));
560 if (!ndv->change_seq) {
565 /* Code specific to individual vport types. */
568 set_key(const struct smap *args, const char *name, uint16_t type,
569 struct ofpbuf *options)
573 s = smap_get(args, name);
575 s = smap_get(args, "key");
581 if (!strcmp(s, "flow")) {
582 /* This is the default if no attribute is present. */
584 nl_msg_put_be64(options, type, htonll(strtoull(s, NULL, 0)));
589 parse_tunnel_config(const char *name, const char *type,
590 const struct smap *args, struct ofpbuf *options)
593 bool is_ipsec = false;
594 struct smap_node *node;
595 bool ipsec_mech_set = false;
596 ovs_be32 daddr = htonl(0);
597 ovs_be32 saddr = htonl(0);
600 if (!strcmp(type, "capwap")) {
601 VLOG_WARN_ONCE("CAPWAP tunnel support is deprecated.");
604 flags = TNL_F_DF_DEFAULT;
605 if (!strcmp(type, "gre") || !strcmp(type, "gre64")) {
607 } else if (!strcmp(type, "ipsec_gre") || !strcmp(type, "ipsec_gre64")) {
610 flags |= TNL_F_IPSEC;
613 SMAP_FOR_EACH (node, args) {
614 if (!strcmp(node->key, "remote_ip")) {
615 struct in_addr in_addr;
616 if (lookup_ip(node->value, &in_addr)) {
617 VLOG_WARN("%s: bad %s 'remote_ip'", name, type);
619 daddr = in_addr.s_addr;
621 } else if (!strcmp(node->key, "local_ip")) {
622 struct in_addr in_addr;
623 if (lookup_ip(node->value, &in_addr)) {
624 VLOG_WARN("%s: bad %s 'local_ip'", name, type);
626 saddr = in_addr.s_addr;
628 } else if (!strcmp(node->key, "tos")) {
629 if (!strcmp(node->value, "inherit")) {
630 flags |= TNL_F_TOS_INHERIT;
634 tos = strtol(node->value, &endptr, 0);
635 if (*endptr == '\0' && tos == (tos & IP_DSCP_MASK)) {
636 nl_msg_put_u8(options, OVS_TUNNEL_ATTR_TOS, tos);
638 VLOG_WARN("%s: invalid TOS %s", name, node->value);
641 } else if (!strcmp(node->key, "ttl")) {
642 if (!strcmp(node->value, "inherit")) {
643 flags |= TNL_F_TTL_INHERIT;
645 nl_msg_put_u8(options, OVS_TUNNEL_ATTR_TTL, atoi(node->value));
647 } else if (!strcmp(node->key, "csum") && is_gre) {
648 if (!strcmp(node->value, "true")) {
651 } else if (!strcmp(node->key, "df_inherit")) {
652 if (!strcmp(node->value, "true")) {
653 flags |= TNL_F_DF_INHERIT;
655 } else if (!strcmp(node->key, "df_default")) {
656 if (!strcmp(node->value, "false")) {
657 flags &= ~TNL_F_DF_DEFAULT;
659 } else if (!strcmp(node->key, "pmtud")) {
660 if (!strcmp(node->value, "true")) {
661 VLOG_WARN_ONCE("%s: The tunnel Path MTU discovery is "
662 "deprecated and may be removed in February "
663 "2013. Please email dev@openvswitch.org with "
665 flags |= TNL_F_PMTUD;
667 } else if (!strcmp(node->key, "peer_cert") && is_ipsec) {
668 if (smap_get(args, "certificate")) {
669 ipsec_mech_set = true;
671 const char *use_ssl_cert;
673 /* If the "use_ssl_cert" is true, then "certificate" and
674 * "private_key" will be pulled from the SSL table. The
675 * use of this option is strongly discouraged, since it
676 * will like be removed when multiple SSL configurations
677 * are supported by OVS.
679 use_ssl_cert = smap_get(args, "use_ssl_cert");
680 if (!use_ssl_cert || strcmp(use_ssl_cert, "true")) {
681 VLOG_ERR("%s: 'peer_cert' requires 'certificate' argument",
685 ipsec_mech_set = true;
687 } else if (!strcmp(node->key, "psk") && is_ipsec) {
688 ipsec_mech_set = true;
690 && (!strcmp(node->key, "certificate")
691 || !strcmp(node->key, "private_key")
692 || !strcmp(node->key, "use_ssl_cert"))) {
693 /* Ignore options not used by the netdev. */
694 } else if (!strcmp(node->key, "key") ||
695 !strcmp(node->key, "in_key") ||
696 !strcmp(node->key, "out_key")) {
697 /* Handled separately below. */
699 VLOG_WARN("%s: unknown %s argument '%s'", name, type, node->key);
704 static pid_t pid = 0;
706 char *file_name = xasprintf("%s/%s", ovs_rundir(),
707 "ovs-monitor-ipsec.pid");
708 pid = read_pidfile(file_name);
713 VLOG_ERR("%s: IPsec requires the ovs-monitor-ipsec daemon",
718 if (smap_get(args, "peer_cert") && smap_get(args, "psk")) {
719 VLOG_ERR("%s: cannot define both 'peer_cert' and 'psk'", name);
723 if (!ipsec_mech_set) {
724 VLOG_ERR("%s: IPsec requires an 'peer_cert' or psk' argument",
730 set_key(args, "in_key", OVS_TUNNEL_ATTR_IN_KEY, options);
731 set_key(args, "out_key", OVS_TUNNEL_ATTR_OUT_KEY, options);
734 VLOG_ERR("%s: %s type requires valid 'remote_ip' argument",
738 nl_msg_put_be32(options, OVS_TUNNEL_ATTR_DST_IPV4, daddr);
741 if (ip_is_multicast(daddr)) {
742 VLOG_WARN("%s: remote_ip is multicast, ignoring local_ip", name);
744 nl_msg_put_be32(options, OVS_TUNNEL_ATTR_SRC_IPV4, saddr);
748 nl_msg_put_u32(options, OVS_TUNNEL_ATTR_FLAGS, flags);
754 tnl_port_config_from_nlattr(const struct nlattr *options, size_t options_len,
755 struct nlattr *a[OVS_TUNNEL_ATTR_MAX + 1])
757 static const struct nl_policy ovs_tunnel_policy[] = {
758 [OVS_TUNNEL_ATTR_FLAGS] = { .type = NL_A_U32, .optional = true },
759 [OVS_TUNNEL_ATTR_DST_IPV4] = { .type = NL_A_BE32, .optional = true },
760 [OVS_TUNNEL_ATTR_SRC_IPV4] = { .type = NL_A_BE32, .optional = true },
761 [OVS_TUNNEL_ATTR_IN_KEY] = { .type = NL_A_BE64, .optional = true },
762 [OVS_TUNNEL_ATTR_OUT_KEY] = { .type = NL_A_BE64, .optional = true },
763 [OVS_TUNNEL_ATTR_TOS] = { .type = NL_A_U8, .optional = true },
764 [OVS_TUNNEL_ATTR_TTL] = { .type = NL_A_U8, .optional = true },
768 ofpbuf_use_const(&buf, options, options_len);
769 if (!nl_policy_parse(&buf, 0, ovs_tunnel_policy,
770 a, ARRAY_SIZE(ovs_tunnel_policy))) {
777 get_be64_or_zero(const struct nlattr *a)
779 return a ? ntohll(nl_attr_get_be64(a)) : 0;
783 unparse_tunnel_config(const char *name OVS_UNUSED, const char *type OVS_UNUSED,
784 const struct nlattr *options, size_t options_len,
787 struct nlattr *a[OVS_TUNNEL_ATTR_MAX + 1];
791 error = tnl_port_config_from_nlattr(options, options_len, a);
796 if (a[OVS_TUNNEL_ATTR_DST_IPV4]) {
797 ovs_be32 daddr = nl_attr_get_be32(a[OVS_TUNNEL_ATTR_DST_IPV4]);
798 smap_add_format(args, "remote_ip", IP_FMT, IP_ARGS(&daddr));
801 if (a[OVS_TUNNEL_ATTR_SRC_IPV4]) {
802 ovs_be32 saddr = nl_attr_get_be32(a[OVS_TUNNEL_ATTR_SRC_IPV4]);
803 smap_add_format(args, "local_ip", IP_FMT, IP_ARGS(&saddr));
806 if (!a[OVS_TUNNEL_ATTR_IN_KEY] && !a[OVS_TUNNEL_ATTR_OUT_KEY]) {
807 smap_add(args, "key", "flow");
809 uint64_t in_key = get_be64_or_zero(a[OVS_TUNNEL_ATTR_IN_KEY]);
810 uint64_t out_key = get_be64_or_zero(a[OVS_TUNNEL_ATTR_OUT_KEY]);
812 if (in_key && in_key == out_key) {
813 smap_add_format(args, "key", "%"PRIu64, in_key);
815 if (!a[OVS_TUNNEL_ATTR_IN_KEY]) {
816 smap_add(args, "in_key", "flow");
818 smap_add_format(args, "in_key", "%"PRIu64, in_key);
821 if (!a[OVS_TUNNEL_ATTR_OUT_KEY]) {
822 smap_add(args, "out_key", "flow");
823 } else if (out_key) {
824 smap_add_format(args, "out_key", "%"PRIu64, out_key);
829 flags = get_u32_or_zero(a[OVS_TUNNEL_ATTR_FLAGS]);
831 if (flags & TNL_F_TTL_INHERIT) {
832 smap_add(args, "ttl", "inherit");
833 } else if (a[OVS_TUNNEL_ATTR_TTL]) {
834 int ttl = nl_attr_get_u8(a[OVS_TUNNEL_ATTR_TTL]);
835 smap_add_format(args, "ttl", "%d", ttl);
838 if (flags & TNL_F_TOS_INHERIT) {
839 smap_add(args, "tos", "inherit");
840 } else if (a[OVS_TUNNEL_ATTR_TOS]) {
841 int tos = nl_attr_get_u8(a[OVS_TUNNEL_ATTR_TOS]);
842 smap_add_format(args, "tos", "0x%x", tos);
845 if (flags & TNL_F_CSUM) {
846 smap_add(args, "csum", "true");
848 if (flags & TNL_F_DF_INHERIT) {
849 smap_add(args, "df_inherit", "true");
851 if (!(flags & TNL_F_DF_DEFAULT)) {
852 smap_add(args, "df_default", "false");
854 if (flags & TNL_F_PMTUD) {
855 smap_add(args, "pmtud", "true");
862 parse_patch_config(const char *name, const char *type OVS_UNUSED,
863 const struct smap *args, struct ofpbuf *options)
867 peer = smap_get(args, "peer");
869 VLOG_ERR("%s: patch type requires valid 'peer' argument", name);
873 if (smap_count(args) > 1) {
874 VLOG_ERR("%s: patch type takes only a 'peer' argument", name);
878 if (strlen(peer) >= IFNAMSIZ) {
879 VLOG_ERR("%s: patch 'peer' arg too long", name);
883 if (!strcmp(name, peer)) {
884 VLOG_ERR("%s: patch peer must not be self", name);
888 nl_msg_put_string(options, OVS_PATCH_ATTR_PEER, peer);
894 unparse_patch_config(const char *name OVS_UNUSED, const char *type OVS_UNUSED,
895 const struct nlattr *options, size_t options_len,
898 static const struct nl_policy ovs_patch_policy[] = {
899 [OVS_PATCH_ATTR_PEER] = { .type = NL_A_STRING,
904 struct nlattr *a[ARRAY_SIZE(ovs_patch_policy)];
907 ofpbuf_use_const(&buf, options, options_len);
908 if (!nl_policy_parse(&buf, 0, ovs_patch_policy,
909 a, ARRAY_SIZE(ovs_patch_policy))) {
913 smap_add(args, "peer", nl_attr_get_string(a[OVS_PATCH_ATTR_PEER]));
917 #define VPORT_FUNCTIONS(GET_STATUS) \
922 netdev_vport_create, \
923 netdev_vport_destroy, \
924 netdev_vport_get_config, \
925 netdev_vport_set_config, \
928 netdev_vport_close, \
932 NULL, /* recv_wait */ \
935 netdev_vport_send, /* send */ \
936 NULL, /* send_wait */ \
938 netdev_vport_set_etheraddr, \
939 netdev_vport_get_etheraddr, \
940 NULL, /* get_mtu */ \
941 NULL, /* set_mtu */ \
942 NULL, /* get_ifindex */ \
943 NULL, /* get_carrier */ \
944 NULL, /* get_carrier_resets */ \
945 NULL, /* get_miimon */ \
946 netdev_vport_get_stats, \
947 netdev_vport_set_stats, \
949 NULL, /* get_features */ \
950 NULL, /* set_advertisements */ \
952 NULL, /* set_policing */ \
953 NULL, /* get_qos_types */ \
954 NULL, /* get_qos_capabilities */ \
955 NULL, /* get_qos */ \
956 NULL, /* set_qos */ \
957 NULL, /* get_queue */ \
958 NULL, /* set_queue */ \
959 NULL, /* delete_queue */ \
960 NULL, /* get_queue_stats */ \
961 NULL, /* dump_queues */ \
962 NULL, /* dump_queue_stats */ \
964 NULL, /* get_in4 */ \
965 NULL, /* set_in4 */ \
966 NULL, /* get_in6 */ \
967 NULL, /* add_router */ \
968 NULL, /* get_next_hop */ \
970 NULL, /* arp_lookup */ \
972 netdev_vport_update_flags, \
974 netdev_vport_change_seq
977 netdev_vport_register(void)
979 static const struct vport_class vport_classes[] = {
980 { OVS_VPORT_TYPE_GRE,
981 { "gre", VPORT_FUNCTIONS(netdev_vport_get_drv_info) },
982 parse_tunnel_config, unparse_tunnel_config },
984 { OVS_VPORT_TYPE_GRE,
985 { "ipsec_gre", VPORT_FUNCTIONS(netdev_vport_get_drv_info) },
986 parse_tunnel_config, unparse_tunnel_config },
988 { OVS_VPORT_TYPE_GRE64,
989 { "gre64", VPORT_FUNCTIONS(netdev_vport_get_drv_info) },
990 parse_tunnel_config, unparse_tunnel_config },
992 { OVS_VPORT_TYPE_GRE64,
993 { "ipsec_gre64", VPORT_FUNCTIONS(netdev_vport_get_drv_info) },
994 parse_tunnel_config, unparse_tunnel_config },
996 { OVS_VPORT_TYPE_CAPWAP,
997 { "capwap", VPORT_FUNCTIONS(netdev_vport_get_drv_info) },
998 parse_tunnel_config, unparse_tunnel_config },
1000 { OVS_VPORT_TYPE_PATCH,
1001 { "patch", VPORT_FUNCTIONS(NULL) },
1002 parse_patch_config, unparse_patch_config }
1007 for (i = 0; i < ARRAY_SIZE(vport_classes); i++) {
1008 netdev_register_provider(&vport_classes[i].netdev_class);