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/rtnetlink.h>
26 #include <sys/ioctl.h>
28 #include "byte-order.h"
31 #include "dpif-linux.h"
35 #include "netdev-linux.h"
36 #include "netdev-provider.h"
38 #include "netlink-socket.h"
40 #include "openvswitch/datapath-protocol.h"
41 #include "openvswitch/tunnel.h"
43 #include "route-table.h"
44 #include "rtnetlink.h"
46 #include "socket-util.h"
49 VLOG_DEFINE_THIS_MODULE(netdev_vport);
51 struct netdev_dev_vport {
52 struct netdev_dev netdev_dev;
53 struct ofpbuf *options;
54 int dp_ifindex; /* -1 if unknown. */
55 uint32_t port_no; /* UINT32_MAX if unknown. */
56 unsigned int change_seq;
64 enum odp_vport_type type;
65 struct netdev_class netdev_class;
66 int (*parse_config)(const char *name, const char *type,
67 const struct shash *args, struct ofpbuf *options);
68 int (*unparse_config)(const char *name, const char *type,
69 const struct nlattr *options, size_t options_len,
71 bool (*config_equal)(const struct shash *nd_args, const struct shash *args);
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 const struct shash *, 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[ODP_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 ODP_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 ? ODP_VPORT_TYPE_INTERNAL
134 : (class == &netdev_linux_class ||
135 class == &netdev_tap_class) ? ODP_VPORT_TYPE_NETDEV
136 : ODP_VPORT_TYPE_UNSPEC);
140 netdev_vport_get_netdev_type(const struct dpif_linux_vport *vport)
142 struct nlattr *a[ODP_TUNNEL_ATTR_MAX + 1];
144 switch (vport->type) {
145 case ODP_VPORT_TYPE_UNSPEC:
148 case ODP_VPORT_TYPE_NETDEV:
151 case ODP_VPORT_TYPE_INTERNAL:
154 case ODP_VPORT_TYPE_PATCH:
157 case ODP_VPORT_TYPE_GRE:
158 if (tnl_port_config_from_nlattr(vport->options, vport->options_len,
162 return (nl_attr_get_u32(a[ODP_TUNNEL_ATTR_FLAGS]) & TNL_F_IPSEC
163 ? "ipsec_gre" : "gre");
165 case ODP_VPORT_TYPE_CAPWAP:
168 case __ODP_VPORT_TYPE_MAX:
172 VLOG_WARN_RL(&rl, "dp%d: port `%s' has unsupported type %u",
173 vport->dp_ifindex, vport->name, (unsigned int) vport->type);
178 netdev_vport_create(const struct netdev_class *netdev_class, const char *name,
179 const struct shash *args,
180 struct netdev_dev **netdev_devp)
182 const struct vport_class *vport_class = vport_class_cast(netdev_class);
183 struct ofpbuf *options = NULL;
184 struct shash fetched_args;
189 shash_init(&fetched_args);
192 port_no = UINT32_MAX;
193 if (!shash_is_empty(args)) {
194 /* Parse the provided configuration. */
195 options = ofpbuf_new(64);
196 error = vport_class->parse_config(name, netdev_class->type,
199 /* Fetch an existing configuration from the kernel.
201 * This case could be ambiguous with initializing a new vport with an
202 * empty configuration, but none of the existing vport classes accept
203 * an empty configuration. */
204 struct dpif_linux_vport reply;
207 error = dpif_linux_vport_get(name, &reply, &buf);
209 /* XXX verify correct type */
210 error = vport_class->unparse_config(name, netdev_class->type,
215 VLOG_ERR_RL(&rl, "%s: failed to parse kernel config (%s)",
216 name, strerror(error));
218 options = ofpbuf_clone_data(reply.options, reply.options_len);
219 dp_ifindex = reply.dp_ifindex;
220 port_no = reply.port_no;
224 VLOG_ERR_RL(&rl, "%s: vport query failed (%s)",
225 name, strerror(error));
230 struct netdev_dev_vport *dev;
232 dev = xmalloc(sizeof *dev);
233 netdev_dev_init(&dev->netdev_dev, name,
234 shash_is_empty(&fetched_args) ? args : &fetched_args,
236 dev->options = options;
237 dev->dp_ifindex = dp_ifindex;
238 dev->port_no = port_no;
241 *netdev_devp = &dev->netdev_dev;
242 route_table_register();
244 ofpbuf_delete(options);
247 shash_destroy(&fetched_args);
253 netdev_vport_destroy(struct netdev_dev *netdev_dev_)
255 struct netdev_dev_vport *netdev_dev = netdev_dev_vport_cast(netdev_dev_);
257 route_table_unregister();
262 netdev_vport_open(struct netdev_dev *netdev_dev_, int ethertype OVS_UNUSED,
263 struct netdev **netdevp)
265 struct netdev_vport *netdev;
267 netdev = xmalloc(sizeof *netdev);
268 netdev_init(&netdev->netdev, netdev_dev_);
270 *netdevp = &netdev->netdev;
275 netdev_vport_close(struct netdev *netdev_)
277 struct netdev_vport *netdev = netdev_vport_cast(netdev_);
282 netdev_vport_set_config(struct netdev_dev *dev_, const struct shash *args)
284 const struct netdev_class *netdev_class = netdev_dev_get_class(dev_);
285 const struct vport_class *vport_class = vport_class_cast(netdev_class);
286 struct netdev_dev_vport *dev = netdev_dev_vport_cast(dev_);
287 const char *name = netdev_dev_get_name(dev_);
288 struct ofpbuf *options;
291 options = ofpbuf_new(64);
292 error = vport_class->parse_config(name, netdev_dev_get_type(dev_),
295 && (options->size != dev->options->size
296 || memcmp(options->data, dev->options->data, options->size))) {
297 struct dpif_linux_vport vport;
299 dpif_linux_vport_init(&vport);
300 vport.cmd = ODP_VPORT_CMD_SET;
302 vport.options = options->data;
303 vport.options_len = options->size;
304 error = dpif_linux_vport_transact(&vport, NULL, NULL);
305 if (!error || error == ENODEV) {
306 /* Either reconfiguration succeeded or this vport is not installed
307 * in the kernel (e.g. it hasn't been added to a dpif yet with
308 * dpif_port_add()). */
309 ofpbuf_delete(dev->options);
310 dev->options = options;
315 ofpbuf_delete(options);
321 netdev_vport_config_equal(const struct netdev_dev *dev_,
322 const struct shash *args)
324 const struct netdev_class *netdev_class = netdev_dev_get_class(dev_);
325 const struct vport_class *vport_class = vport_class_cast(netdev_class);
327 if (vport_class->config_equal) {
328 return vport_class->config_equal(&dev_->args, args);
330 return smap_equal(&dev_->args, args);
335 netdev_vport_send(struct netdev *netdev, const void *data, size_t size)
337 struct netdev_dev *dev_ = netdev_get_dev(netdev);
338 struct netdev_dev_vport *dev = netdev_dev_vport_cast(dev_);
340 if (dev->dp_ifindex == -1) {
341 const char *name = netdev_get_name(netdev);
342 struct dpif_linux_vport reply;
346 error = dpif_linux_vport_get(name, &reply, &buf);
348 VLOG_ERR_RL(&rl, "%s: failed to query vport for send (%s)",
349 name, strerror(error));
352 dev->dp_ifindex = reply.dp_ifindex;
353 dev->port_no = reply.port_no;
357 return dpif_linux_vport_send(dev->dp_ifindex, dev->port_no, data, size);
361 netdev_vport_set_etheraddr(struct netdev *netdev,
362 const uint8_t mac[ETH_ADDR_LEN])
364 struct dpif_linux_vport vport;
367 dpif_linux_vport_init(&vport);
368 vport.cmd = ODP_VPORT_CMD_SET;
369 vport.name = netdev_get_name(netdev);
372 error = dpif_linux_vport_transact(&vport, NULL, NULL);
374 netdev_vport_poll_notify(netdev);
380 netdev_vport_get_etheraddr(const struct netdev *netdev,
381 uint8_t mac[ETH_ADDR_LEN])
383 struct dpif_linux_vport reply;
387 error = dpif_linux_vport_get(netdev_get_name(netdev), &reply, &buf);
390 memcpy(mac, reply.address, ETH_ADDR_LEN);
400 netdev_vport_get_mtu(const struct netdev *netdev, int *mtup)
402 struct dpif_linux_vport reply;
406 error = dpif_linux_vport_get(netdev_get_name(netdev), &reply, &buf);
415 netdev_vport_get_stats(const struct netdev *netdev, struct netdev_stats *stats)
417 struct dpif_linux_vport reply;
421 error = dpif_linux_vport_get(netdev_get_name(netdev), &reply, &buf);
424 } else if (!reply.stats) {
429 netdev_stats_from_rtnl_link_stats64(stats, reply.stats);
437 netdev_vport_set_stats(struct netdev *netdev, const struct netdev_stats *stats)
439 struct rtnl_link_stats64 rtnl_stats;
440 struct dpif_linux_vport vport;
443 netdev_stats_to_rtnl_link_stats64(&rtnl_stats, stats);
445 dpif_linux_vport_init(&vport);
446 vport.cmd = ODP_VPORT_CMD_SET;
447 vport.name = netdev_get_name(netdev);
448 vport.stats = &rtnl_stats;
450 err = dpif_linux_vport_transact(&vport, NULL, NULL);
452 /* If the vport layer doesn't know about the device, that doesn't mean it
453 * doesn't exist (after all were able to open it when netdev_open() was
454 * called), it just means that it isn't attached and we'll be getting
455 * stats a different way. */
464 netdev_vport_get_status(const struct netdev *netdev, struct shash *sh)
466 const char *iface = netdev_vport_get_tnl_iface(netdev);
469 struct netdev *egress_netdev;
471 shash_add(sh, "tunnel_egress_iface", xstrdup(iface));
473 if (!netdev_open_default(iface, &egress_netdev)) {
474 shash_add(sh, "tunnel_egress_iface_carrier",
475 xstrdup(netdev_get_carrier(egress_netdev)
477 netdev_close(egress_netdev);
485 netdev_vport_update_flags(struct netdev *netdev OVS_UNUSED,
486 enum netdev_flags off, enum netdev_flags on OVS_UNUSED,
487 enum netdev_flags *old_flagsp)
489 if (off & (NETDEV_UP | NETDEV_PROMISC)) {
493 *old_flagsp = NETDEV_UP | NETDEV_PROMISC;
498 netdev_vport_change_seq(const struct netdev *netdev)
500 return netdev_dev_vport_cast(netdev_get_dev(netdev))->change_seq;
504 netdev_vport_run(void)
510 netdev_vport_wait(void)
515 /* get_tnl_iface() implementation. */
517 netdev_vport_get_tnl_iface(const struct netdev *netdev)
519 struct nlattr *a[ODP_TUNNEL_ATTR_MAX + 1];
521 struct netdev_dev_vport *ndv;
522 static char name[IFNAMSIZ];
524 ndv = netdev_dev_vport_cast(netdev_get_dev(netdev));
525 if (tnl_port_config_from_nlattr(ndv->options->data, ndv->options->size,
529 route = nl_attr_get_be32(a[ODP_TUNNEL_ATTR_DST_IPV4]);
531 if (route_table_get_name(route, name)) {
538 /* Helper functions. */
541 netdev_vport_poll_notify(const struct netdev *netdev)
543 struct netdev_dev_vport *ndv;
545 ndv = netdev_dev_vport_cast(netdev_get_dev(netdev));
548 if (!ndv->change_seq) {
553 /* Code specific to individual vport types. */
556 set_key(const struct shash *args, const char *name, uint16_t type,
557 struct ofpbuf *options)
561 s = shash_find_data(args, name);
563 s = shash_find_data(args, "key");
569 if (!strcmp(s, "flow")) {
570 /* This is the default if no attribute is present. */
572 nl_msg_put_be64(options, type, htonll(strtoull(s, NULL, 0)));
577 parse_tunnel_config(const char *name, const char *type,
578 const struct shash *args, struct ofpbuf *options)
581 bool is_ipsec = false;
582 struct shash_node *node;
583 bool ipsec_mech_set = false;
584 ovs_be32 daddr = htonl(0);
587 flags = TNL_F_DF_DEFAULT | TNL_F_PMTUD | TNL_F_HDR_CACHE;
588 if (!strcmp(type, "gre")) {
590 } else if (!strcmp(type, "ipsec_gre")) {
593 flags |= TNL_F_IPSEC;
594 flags &= ~TNL_F_HDR_CACHE;
597 SHASH_FOR_EACH (node, args) {
598 if (!strcmp(node->name, "remote_ip")) {
599 struct in_addr in_addr;
600 if (lookup_ip(node->data, &in_addr)) {
601 VLOG_WARN("%s: bad %s 'remote_ip'", name, type);
603 daddr = in_addr.s_addr;
605 } else if (!strcmp(node->name, "local_ip")) {
606 struct in_addr in_addr;
607 if (lookup_ip(node->data, &in_addr)) {
608 VLOG_WARN("%s: bad %s 'local_ip'", name, type);
610 nl_msg_put_be32(options, ODP_TUNNEL_ATTR_SRC_IPV4,
613 } else if (!strcmp(node->name, "tos")) {
614 if (!strcmp(node->data, "inherit")) {
615 flags |= TNL_F_TOS_INHERIT;
617 nl_msg_put_u8(options, ODP_TUNNEL_ATTR_TOS, atoi(node->data));
619 } else if (!strcmp(node->name, "ttl")) {
620 if (!strcmp(node->data, "inherit")) {
621 flags |= TNL_F_TTL_INHERIT;
623 nl_msg_put_u8(options, ODP_TUNNEL_ATTR_TTL, atoi(node->data));
625 } else if (!strcmp(node->name, "csum") && is_gre) {
626 if (!strcmp(node->data, "true")) {
629 } else if (!strcmp(node->name, "df_inherit")) {
630 if (!strcmp(node->data, "true")) {
631 flags |= TNL_F_DF_INHERIT;
633 } else if (!strcmp(node->name, "df_default")) {
634 if (!strcmp(node->data, "false")) {
635 flags &= ~TNL_F_DF_DEFAULT;
637 } else if (!strcmp(node->name, "pmtud")) {
638 if (!strcmp(node->data, "false")) {
639 flags &= ~TNL_F_PMTUD;
641 } else if (!strcmp(node->name, "header_cache")) {
642 if (!strcmp(node->data, "false")) {
643 flags &= ~TNL_F_HDR_CACHE;
645 } else if (!strcmp(node->name, "peer_cert") && is_ipsec) {
646 if (shash_find(args, "certificate")) {
647 ipsec_mech_set = true;
649 const char *use_ssl_cert;
651 /* If the "use_ssl_cert" is true, then "certificate" and
652 * "private_key" will be pulled from the SSL table. The
653 * use of this option is strongly discouraged, since it
654 * will like be removed when multiple SSL configurations
655 * are supported by OVS.
657 use_ssl_cert = shash_find_data(args, "use_ssl_cert");
658 if (!use_ssl_cert || strcmp(use_ssl_cert, "true")) {
659 VLOG_ERR("%s: 'peer_cert' requires 'certificate' argument",
663 ipsec_mech_set = true;
665 } else if (!strcmp(node->name, "psk") && is_ipsec) {
666 ipsec_mech_set = true;
668 && (!strcmp(node->name, "certificate")
669 || !strcmp(node->name, "private_key")
670 || !strcmp(node->name, "use_ssl_cert"))) {
671 /* Ignore options not used by the netdev. */
672 } else if (is_gre && (!strcmp(node->name, "key") ||
673 !strcmp(node->name, "in_key") ||
674 !strcmp(node->name, "out_key"))) {
675 /* Handled separately below. */
677 VLOG_WARN("%s: unknown %s argument '%s'", name, type, node->name);
682 char *file_name = xasprintf("%s/%s", ovs_rundir(),
683 "ovs-monitor-ipsec.pid");
684 pid_t pid = read_pidfile(file_name);
687 VLOG_ERR("%s: IPsec requires the ovs-monitor-ipsec daemon",
692 if (shash_find(args, "peer_cert") && shash_find(args, "psk")) {
693 VLOG_ERR("%s: cannot define both 'peer_cert' and 'psk'", name);
697 if (!ipsec_mech_set) {
698 VLOG_ERR("%s: IPsec requires an 'peer_cert' or psk' argument",
705 set_key(args, "in_key", ODP_TUNNEL_ATTR_IN_KEY, options);
706 set_key(args, "out_key", ODP_TUNNEL_ATTR_OUT_KEY, options);
710 VLOG_ERR("%s: %s type requires valid 'remote_ip' argument",
714 nl_msg_put_be32(options, ODP_TUNNEL_ATTR_DST_IPV4, daddr);
716 nl_msg_put_u32(options, ODP_TUNNEL_ATTR_FLAGS, flags);
722 tnl_port_config_from_nlattr(const struct nlattr *options, size_t options_len,
723 struct nlattr *a[ODP_TUNNEL_ATTR_MAX + 1])
725 static const struct nl_policy odp_tunnel_policy[] = {
726 [ODP_TUNNEL_ATTR_FLAGS] = { .type = NL_A_U32 },
727 [ODP_TUNNEL_ATTR_DST_IPV4] = { .type = NL_A_BE32 },
728 [ODP_TUNNEL_ATTR_SRC_IPV4] = { .type = NL_A_BE32, .optional = true },
729 [ODP_TUNNEL_ATTR_IN_KEY] = { .type = NL_A_BE64, .optional = true },
730 [ODP_TUNNEL_ATTR_OUT_KEY] = { .type = NL_A_BE64, .optional = true },
731 [ODP_TUNNEL_ATTR_TOS] = { .type = NL_A_U8, .optional = true },
732 [ODP_TUNNEL_ATTR_TTL] = { .type = NL_A_U8, .optional = true },
736 ofpbuf_use_const(&buf, options, options_len);
737 if (!nl_policy_parse(&buf, 0, odp_tunnel_policy,
738 a, ARRAY_SIZE(odp_tunnel_policy))) {
745 get_be64_or_zero(const struct nlattr *a)
747 return a ? ntohll(nl_attr_get_be64(a)) : 0;
751 unparse_tunnel_config(const char *name OVS_UNUSED, const char *type OVS_UNUSED,
752 const struct nlattr *options, size_t options_len,
755 struct nlattr *a[ODP_TUNNEL_ATTR_MAX + 1];
760 error = tnl_port_config_from_nlattr(options, options_len, a);
765 flags = nl_attr_get_u32(a[ODP_TUNNEL_ATTR_FLAGS]);
766 if (!(flags & TNL_F_HDR_CACHE) == !(flags & TNL_F_IPSEC)) {
767 smap_add(args, "header_cache",
768 flags & TNL_F_HDR_CACHE ? "true" : "false");
771 daddr = nl_attr_get_be32(a[ODP_TUNNEL_ATTR_DST_IPV4]);
772 shash_add(args, "remote_ip", xasprintf(IP_FMT, IP_ARGS(&daddr)));
774 if (a[ODP_TUNNEL_ATTR_SRC_IPV4]) {
775 ovs_be32 saddr = nl_attr_get_be32(a[ODP_TUNNEL_ATTR_SRC_IPV4]);
776 shash_add(args, "local_ip", xasprintf(IP_FMT, IP_ARGS(&saddr)));
779 if (!a[ODP_TUNNEL_ATTR_IN_KEY] && !a[ODP_TUNNEL_ATTR_OUT_KEY]) {
780 smap_add(args, "key", "flow");
782 uint64_t in_key = get_be64_or_zero(a[ODP_TUNNEL_ATTR_IN_KEY]);
783 uint64_t out_key = get_be64_or_zero(a[ODP_TUNNEL_ATTR_OUT_KEY]);
785 if (in_key && in_key == out_key) {
786 shash_add(args, "key", xasprintf("%"PRIu64, in_key));
788 if (!a[ODP_TUNNEL_ATTR_IN_KEY]) {
789 smap_add(args, "in_key", "flow");
791 shash_add(args, "in_key", xasprintf("%"PRIu64, in_key));
794 if (!a[ODP_TUNNEL_ATTR_OUT_KEY]) {
795 smap_add(args, "out_key", "flow");
796 } else if (out_key) {
797 shash_add(args, "out_key", xasprintf("%"PRIu64, out_key));
802 if (flags & TNL_F_TTL_INHERIT) {
803 smap_add(args, "tos", "inherit");
804 } else if (a[ODP_TUNNEL_ATTR_TTL]) {
805 int ttl = nl_attr_get_u8(a[ODP_TUNNEL_ATTR_TTL]);
806 shash_add(args, "tos", xasprintf("%d", ttl));
809 if (flags & TNL_F_TOS_INHERIT) {
810 smap_add(args, "tos", "inherit");
811 } else if (a[ODP_TUNNEL_ATTR_TOS]) {
812 int tos = nl_attr_get_u8(a[ODP_TUNNEL_ATTR_TOS]);
813 shash_add(args, "tos", xasprintf("%d", tos));
816 if (flags & TNL_F_CSUM) {
817 smap_add(args, "csum", "true");
819 if (flags & TNL_F_DF_INHERIT) {
820 smap_add(args, "df_inherit", "true");
822 if (!(flags & TNL_F_DF_DEFAULT)) {
823 smap_add(args, "df_default", "false");
825 if (!(flags & TNL_F_PMTUD)) {
826 smap_add(args, "pmtud", "false");
833 parse_patch_config(const char *name, const char *type OVS_UNUSED,
834 const struct shash *args, struct ofpbuf *options)
838 peer = shash_find_data(args, "peer");
840 VLOG_ERR("%s: patch type requires valid 'peer' argument", name);
844 if (shash_count(args) > 1) {
845 VLOG_ERR("%s: patch type takes only a 'peer' argument", name);
849 if (strlen(peer) >= IFNAMSIZ) {
850 VLOG_ERR("%s: patch 'peer' arg too long", name);
854 if (!strcmp(name, peer)) {
855 VLOG_ERR("%s: patch peer must not be self", name);
859 nl_msg_put_string(options, ODP_PATCH_ATTR_PEER, peer);
865 unparse_patch_config(const char *name OVS_UNUSED, const char *type OVS_UNUSED,
866 const struct nlattr *options, size_t options_len,
869 static const struct nl_policy odp_patch_policy[] = {
870 [ODP_PATCH_ATTR_PEER] = { .type = NL_A_STRING,
875 struct nlattr *a[ARRAY_SIZE(odp_patch_policy)];
878 ofpbuf_use_const(&buf, options, options_len);
879 if (!nl_policy_parse(&buf, 0, odp_patch_policy,
880 a, ARRAY_SIZE(odp_patch_policy))) {
884 smap_add(args, "peer", nl_attr_get_string(a[ODP_PATCH_ATTR_PEER]));
888 /* Returns true if 'nd_args' is equivalent to 'args', otherwise false.
889 * Typically, 'nd_args' is the result of a call to unparse_tunnel_config()
890 * and 'args' is the original definition of the port.
892 * IPsec key configuration is handled by an external program, so it is not
893 * pushed down into the kernel module. Thus, when the "unparse_config"
894 * method is called on an existing IPsec-based vport, a simple
895 * comparison with the returned data will not match the original
896 * configuration. This function ignores configuration about keys when
897 * doing a comparison.
900 config_equal_ipsec(const struct shash *nd_args, const struct shash *args)
902 struct shash tmp1, tmp2;
905 smap_clone(&tmp1, nd_args);
906 smap_clone(&tmp2, args);
908 shash_find_and_delete(&tmp1, "psk");
909 shash_find_and_delete(&tmp2, "psk");
910 shash_find_and_delete(&tmp1, "peer_cert");
911 shash_find_and_delete(&tmp2, "peer_cert");
912 shash_find_and_delete(&tmp1, "certificate");
913 shash_find_and_delete(&tmp2, "certificate");
914 shash_find_and_delete(&tmp1, "private_key");
915 shash_find_and_delete(&tmp2, "private_key");
916 shash_find_and_delete(&tmp1, "use_ssl_cert");
917 shash_find_and_delete(&tmp2, "use_ssl_cert");
919 result = smap_equal(&tmp1, &tmp2);
926 #define VPORT_FUNCTIONS(GET_STATUS) \
931 netdev_vport_create, \
932 netdev_vport_destroy, \
933 netdev_vport_set_config, \
934 netdev_vport_config_equal, \
937 netdev_vport_close, \
939 NULL, /* enumerate */ \
942 NULL, /* recv_wait */ \
945 netdev_vport_send, /* send */ \
946 NULL, /* send_wait */ \
948 netdev_vport_set_etheraddr, \
949 netdev_vport_get_etheraddr, \
950 netdev_vport_get_mtu, \
951 NULL, /* get_ifindex */ \
952 NULL, /* get_carrier */ \
953 NULL, /* get_miimon */ \
954 netdev_vport_get_stats, \
955 netdev_vport_set_stats, \
957 NULL, /* get_features */ \
958 NULL, /* set_advertisements */ \
959 NULL, /* get_vlan_vid */ \
961 NULL, /* set_policing */ \
962 NULL, /* get_qos_types */ \
963 NULL, /* get_qos_capabilities */ \
964 NULL, /* get_qos */ \
965 NULL, /* set_qos */ \
966 NULL, /* get_queue */ \
967 NULL, /* set_queue */ \
968 NULL, /* delete_queue */ \
969 NULL, /* get_queue_stats */ \
970 NULL, /* dump_queues */ \
971 NULL, /* dump_queue_stats */ \
973 NULL, /* get_in4 */ \
974 NULL, /* set_in4 */ \
975 NULL, /* get_in6 */ \
976 NULL, /* add_router */ \
977 NULL, /* get_next_hop */ \
979 NULL, /* arp_lookup */ \
981 netdev_vport_update_flags, \
983 netdev_vport_change_seq
986 netdev_vport_register(void)
988 static const struct vport_class vport_classes[] = {
989 { ODP_VPORT_TYPE_GRE,
990 { "gre", VPORT_FUNCTIONS(netdev_vport_get_status) },
991 parse_tunnel_config, unparse_tunnel_config, NULL },
993 { ODP_VPORT_TYPE_GRE,
994 { "ipsec_gre", VPORT_FUNCTIONS(netdev_vport_get_status) },
995 parse_tunnel_config, unparse_tunnel_config, config_equal_ipsec },
997 { ODP_VPORT_TYPE_CAPWAP,
998 { "capwap", VPORT_FUNCTIONS(netdev_vport_get_status) },
999 parse_tunnel_config, unparse_tunnel_config, NULL },
1001 { ODP_VPORT_TYPE_PATCH,
1002 { "patch", VPORT_FUNCTIONS(NULL) },
1003 parse_patch_config, unparse_patch_config, NULL }
1008 for (i = 0; i < ARRAY_SIZE(vport_classes); i++) {
1009 netdev_register_provider(&vport_classes[i].netdev_class);