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 ? ODP_VPORT_TYPE_NETDEV
135 : ODP_VPORT_TYPE_UNSPEC);
139 netdev_vport_get_netdev_type(const struct dpif_linux_vport *vport)
141 struct nlattr *a[ODP_TUNNEL_ATTR_MAX + 1];
143 switch (vport->type) {
144 case ODP_VPORT_TYPE_UNSPEC:
147 case ODP_VPORT_TYPE_NETDEV:
150 case ODP_VPORT_TYPE_INTERNAL:
153 case ODP_VPORT_TYPE_PATCH:
156 case ODP_VPORT_TYPE_GRE:
157 if (tnl_port_config_from_nlattr(vport->options, vport->options_len,
161 return (nl_attr_get_u32(a[ODP_TUNNEL_ATTR_FLAGS]) & TNL_F_IPSEC
162 ? "ipsec_gre" : "gre");
164 case ODP_VPORT_TYPE_CAPWAP:
167 case __ODP_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 const struct shash *args,
179 struct netdev_dev **netdev_devp)
181 const struct vport_class *vport_class = vport_class_cast(netdev_class);
182 struct ofpbuf *options = NULL;
183 struct shash fetched_args;
188 shash_init(&fetched_args);
191 port_no = UINT32_MAX;
192 if (!shash_is_empty(args)) {
193 /* Parse the provided configuration. */
194 options = ofpbuf_new(64);
195 error = vport_class->parse_config(name, netdev_class->type,
198 /* Fetch an existing configuration from the kernel.
200 * This case could be ambiguous with initializing a new vport with an
201 * empty configuration, but none of the existing vport classes accept
202 * an empty configuration. */
203 struct dpif_linux_vport reply;
206 error = dpif_linux_vport_get(name, &reply, &buf);
208 /* XXX verify correct type */
209 error = vport_class->unparse_config(name, netdev_class->type,
214 VLOG_ERR_RL(&rl, "%s: failed to parse kernel config (%s)",
215 name, strerror(error));
217 options = ofpbuf_clone_data(reply.options, reply.options_len);
218 dp_ifindex = reply.dp_ifindex;
219 port_no = reply.port_no;
223 VLOG_ERR_RL(&rl, "%s: vport query failed (%s)",
224 name, strerror(error));
229 struct netdev_dev_vport *dev;
231 dev = xmalloc(sizeof *dev);
232 netdev_dev_init(&dev->netdev_dev, name,
233 shash_is_empty(&fetched_args) ? args : &fetched_args,
235 dev->options = options;
236 dev->dp_ifindex = dp_ifindex;
237 dev->port_no = port_no;
240 *netdev_devp = &dev->netdev_dev;
241 route_table_register();
243 ofpbuf_delete(options);
246 shash_destroy(&fetched_args);
252 netdev_vport_destroy(struct netdev_dev *netdev_dev_)
254 struct netdev_dev_vport *netdev_dev = netdev_dev_vport_cast(netdev_dev_);
256 route_table_unregister();
261 netdev_vport_open(struct netdev_dev *netdev_dev_, int ethertype OVS_UNUSED,
262 struct netdev **netdevp)
264 struct netdev_vport *netdev;
266 netdev = xmalloc(sizeof *netdev);
267 netdev_init(&netdev->netdev, netdev_dev_);
269 *netdevp = &netdev->netdev;
274 netdev_vport_close(struct netdev *netdev_)
276 struct netdev_vport *netdev = netdev_vport_cast(netdev_);
281 netdev_vport_set_config(struct netdev_dev *dev_, const struct shash *args)
283 const struct netdev_class *netdev_class = netdev_dev_get_class(dev_);
284 const struct vport_class *vport_class = vport_class_cast(netdev_class);
285 struct netdev_dev_vport *dev = netdev_dev_vport_cast(dev_);
286 const char *name = netdev_dev_get_name(dev_);
287 struct ofpbuf *options;
290 options = ofpbuf_new(64);
291 error = vport_class->parse_config(name, netdev_dev_get_type(dev_),
294 && (options->size != dev->options->size
295 || memcmp(options->data, dev->options->data, options->size))) {
296 struct dpif_linux_vport vport;
298 dpif_linux_vport_init(&vport);
299 vport.cmd = ODP_VPORT_CMD_SET;
301 vport.options = options->data;
302 vport.options_len = options->size;
303 error = dpif_linux_vport_transact(&vport, NULL, NULL);
304 if (!error || error == ENODEV) {
305 /* Either reconfiguration succeeded or this vport is not installed
306 * in the kernel (e.g. it hasn't been added to a dpif yet with
307 * dpif_port_add()). */
308 ofpbuf_delete(dev->options);
309 dev->options = options;
314 ofpbuf_delete(options);
320 netdev_vport_config_equal(const struct netdev_dev *dev_,
321 const struct shash *args)
323 const struct netdev_class *netdev_class = netdev_dev_get_class(dev_);
324 const struct vport_class *vport_class = vport_class_cast(netdev_class);
326 if (vport_class->config_equal) {
327 return vport_class->config_equal(&dev_->args, args);
329 return smap_equal(&dev_->args, args);
334 netdev_vport_send(struct netdev *netdev, const void *data, size_t size)
336 struct netdev_dev *dev_ = netdev_get_dev(netdev);
337 struct netdev_dev_vport *dev = netdev_dev_vport_cast(dev_);
339 if (dev->dp_ifindex == -1) {
340 const char *name = netdev_get_name(netdev);
341 struct dpif_linux_vport reply;
345 error = dpif_linux_vport_get(name, &reply, &buf);
347 VLOG_ERR_RL(&rl, "%s: failed to query vport for send (%s)",
348 name, strerror(error));
351 dev->dp_ifindex = reply.dp_ifindex;
352 dev->port_no = reply.port_no;
356 return dpif_linux_vport_send(dev->dp_ifindex, dev->port_no, data, size);
360 netdev_vport_set_etheraddr(struct netdev *netdev,
361 const uint8_t mac[ETH_ADDR_LEN])
363 struct dpif_linux_vport vport;
366 dpif_linux_vport_init(&vport);
367 vport.cmd = ODP_VPORT_CMD_SET;
368 vport.name = netdev_get_name(netdev);
371 error = dpif_linux_vport_transact(&vport, NULL, NULL);
373 netdev_vport_poll_notify(netdev);
379 netdev_vport_get_etheraddr(const struct netdev *netdev,
380 uint8_t mac[ETH_ADDR_LEN])
382 struct dpif_linux_vport reply;
386 error = dpif_linux_vport_get(netdev_get_name(netdev), &reply, &buf);
389 memcpy(mac, reply.address, ETH_ADDR_LEN);
399 netdev_vport_get_mtu(const struct netdev *netdev, int *mtup)
401 struct dpif_linux_vport reply;
405 error = dpif_linux_vport_get(netdev_get_name(netdev), &reply, &buf);
414 netdev_vport_get_stats(const struct netdev *netdev, struct netdev_stats *stats)
416 struct dpif_linux_vport reply;
420 error = dpif_linux_vport_get(netdev_get_name(netdev), &reply, &buf);
423 } else if (!reply.stats) {
428 netdev_stats_from_rtnl_link_stats64(stats, reply.stats);
436 netdev_vport_set_stats(struct netdev *netdev, const struct netdev_stats *stats)
438 struct rtnl_link_stats64 rtnl_stats;
439 struct dpif_linux_vport vport;
442 netdev_stats_to_rtnl_link_stats64(&rtnl_stats, stats);
444 dpif_linux_vport_init(&vport);
445 vport.cmd = ODP_VPORT_CMD_SET;
446 vport.name = netdev_get_name(netdev);
447 vport.stats = &rtnl_stats;
449 err = dpif_linux_vport_transact(&vport, NULL, NULL);
451 /* If the vport layer doesn't know about the device, that doesn't mean it
452 * doesn't exist (after all were able to open it when netdev_open() was
453 * called), it just means that it isn't attached and we'll be getting
454 * stats a different way. */
463 netdev_vport_get_status(const struct netdev *netdev, struct shash *sh)
465 const char *iface = netdev_vport_get_tnl_iface(netdev);
468 struct netdev *egress_netdev;
470 shash_add(sh, "tunnel_egress_iface", xstrdup(iface));
472 if (!netdev_open_default(iface, &egress_netdev)) {
473 shash_add(sh, "tunnel_egress_iface_carrier",
474 xstrdup(netdev_get_carrier(egress_netdev)
476 netdev_close(egress_netdev);
484 netdev_vport_update_flags(struct netdev *netdev OVS_UNUSED,
485 enum netdev_flags off, enum netdev_flags on OVS_UNUSED,
486 enum netdev_flags *old_flagsp)
488 if (off & (NETDEV_UP | NETDEV_PROMISC)) {
492 *old_flagsp = NETDEV_UP | NETDEV_PROMISC;
497 netdev_vport_change_seq(const struct netdev *netdev)
499 return netdev_dev_vport_cast(netdev_get_dev(netdev))->change_seq;
503 netdev_vport_run(void)
509 netdev_vport_wait(void)
514 /* get_tnl_iface() implementation. */
516 netdev_vport_get_tnl_iface(const struct netdev *netdev)
518 struct nlattr *a[ODP_TUNNEL_ATTR_MAX + 1];
520 struct netdev_dev_vport *ndv;
521 static char name[IFNAMSIZ];
523 ndv = netdev_dev_vport_cast(netdev_get_dev(netdev));
524 if (tnl_port_config_from_nlattr(ndv->options->data, ndv->options->size,
528 route = nl_attr_get_be32(a[ODP_TUNNEL_ATTR_DST_IPV4]);
530 if (route_table_get_name(route, name)) {
537 /* Helper functions. */
540 netdev_vport_poll_notify(const struct netdev *netdev)
542 struct netdev_dev_vport *ndv;
544 ndv = netdev_dev_vport_cast(netdev_get_dev(netdev));
547 if (!ndv->change_seq) {
552 /* Code specific to individual vport types. */
555 set_key(const struct shash *args, const char *name, uint16_t type,
556 struct ofpbuf *options)
560 s = shash_find_data(args, name);
562 s = shash_find_data(args, "key");
568 if (!strcmp(s, "flow")) {
569 /* This is the default if no attribute is present. */
571 nl_msg_put_be64(options, type, htonll(strtoull(s, NULL, 0)));
576 parse_tunnel_config(const char *name, const char *type,
577 const struct shash *args, struct ofpbuf *options)
580 bool is_ipsec = false;
581 struct shash_node *node;
582 bool ipsec_mech_set = false;
583 ovs_be32 daddr = htonl(0);
586 flags = TNL_F_DF_DEFAULT | TNL_F_PMTUD | TNL_F_HDR_CACHE;
587 if (!strcmp(type, "gre")) {
589 } else if (!strcmp(type, "ipsec_gre")) {
592 flags |= TNL_F_IPSEC;
593 flags &= ~TNL_F_HDR_CACHE;
596 SHASH_FOR_EACH (node, args) {
597 if (!strcmp(node->name, "remote_ip")) {
598 struct in_addr in_addr;
599 if (lookup_ip(node->data, &in_addr)) {
600 VLOG_WARN("%s: bad %s 'remote_ip'", name, type);
602 daddr = in_addr.s_addr;
604 } else if (!strcmp(node->name, "local_ip")) {
605 struct in_addr in_addr;
606 if (lookup_ip(node->data, &in_addr)) {
607 VLOG_WARN("%s: bad %s 'local_ip'", name, type);
609 nl_msg_put_be32(options, ODP_TUNNEL_ATTR_SRC_IPV4,
612 } else if (!strcmp(node->name, "tos")) {
613 if (!strcmp(node->data, "inherit")) {
614 flags |= TNL_F_TOS_INHERIT;
616 nl_msg_put_u8(options, ODP_TUNNEL_ATTR_TOS, atoi(node->data));
618 } else if (!strcmp(node->name, "ttl")) {
619 if (!strcmp(node->data, "inherit")) {
620 flags |= TNL_F_TTL_INHERIT;
622 nl_msg_put_u8(options, ODP_TUNNEL_ATTR_TTL, atoi(node->data));
624 } else if (!strcmp(node->name, "csum") && is_gre) {
625 if (!strcmp(node->data, "true")) {
628 } else if (!strcmp(node->name, "df_inherit")) {
629 if (!strcmp(node->data, "true")) {
630 flags |= TNL_F_DF_INHERIT;
632 } else if (!strcmp(node->name, "df_default")) {
633 if (!strcmp(node->data, "false")) {
634 flags &= ~TNL_F_DF_DEFAULT;
636 } else if (!strcmp(node->name, "pmtud")) {
637 if (!strcmp(node->data, "false")) {
638 flags &= ~TNL_F_PMTUD;
640 } else if (!strcmp(node->name, "header_cache")) {
641 if (!strcmp(node->data, "false")) {
642 flags &= ~TNL_F_HDR_CACHE;
644 } else if (!strcmp(node->name, "peer_cert") && is_ipsec) {
645 if (shash_find(args, "certificate")) {
646 ipsec_mech_set = true;
648 const char *use_ssl_cert;
650 /* If the "use_ssl_cert" is true, then "certificate" and
651 * "private_key" will be pulled from the SSL table. The
652 * use of this option is strongly discouraged, since it
653 * will like be removed when multiple SSL configurations
654 * are supported by OVS.
656 use_ssl_cert = shash_find_data(args, "use_ssl_cert");
657 if (!use_ssl_cert || strcmp(use_ssl_cert, "true")) {
658 VLOG_ERR("%s: 'peer_cert' requires 'certificate' argument",
662 ipsec_mech_set = true;
664 } else if (!strcmp(node->name, "psk") && is_ipsec) {
665 ipsec_mech_set = true;
667 && (!strcmp(node->name, "certificate")
668 || !strcmp(node->name, "private_key")
669 || !strcmp(node->name, "use_ssl_cert"))) {
670 /* Ignore options not used by the netdev. */
671 } else if (is_gre && (!strcmp(node->name, "key") ||
672 !strcmp(node->name, "in_key") ||
673 !strcmp(node->name, "out_key"))) {
674 /* Handled separately below. */
676 VLOG_WARN("%s: unknown %s argument '%s'", name, type, node->name);
681 char *file_name = xasprintf("%s/%s", ovs_rundir(),
682 "ovs-monitor-ipsec.pid");
683 pid_t pid = read_pidfile(file_name);
686 VLOG_ERR("%s: IPsec requires the ovs-monitor-ipsec daemon",
691 if (shash_find(args, "peer_cert") && shash_find(args, "psk")) {
692 VLOG_ERR("%s: cannot define both 'peer_cert' and 'psk'", name);
696 if (!ipsec_mech_set) {
697 VLOG_ERR("%s: IPsec requires an 'peer_cert' or psk' argument",
704 set_key(args, "in_key", ODP_TUNNEL_ATTR_IN_KEY, options);
705 set_key(args, "out_key", ODP_TUNNEL_ATTR_OUT_KEY, options);
709 VLOG_ERR("%s: %s type requires valid 'remote_ip' argument",
713 nl_msg_put_be32(options, ODP_TUNNEL_ATTR_DST_IPV4, daddr);
715 nl_msg_put_u32(options, ODP_TUNNEL_ATTR_FLAGS, flags);
721 tnl_port_config_from_nlattr(const struct nlattr *options, size_t options_len,
722 struct nlattr *a[ODP_TUNNEL_ATTR_MAX + 1])
724 static const struct nl_policy odp_tunnel_policy[] = {
725 [ODP_TUNNEL_ATTR_FLAGS] = { .type = NL_A_U32 },
726 [ODP_TUNNEL_ATTR_DST_IPV4] = { .type = NL_A_BE32 },
727 [ODP_TUNNEL_ATTR_SRC_IPV4] = { .type = NL_A_BE32, .optional = true },
728 [ODP_TUNNEL_ATTR_IN_KEY] = { .type = NL_A_BE64, .optional = true },
729 [ODP_TUNNEL_ATTR_OUT_KEY] = { .type = NL_A_BE64, .optional = true },
730 [ODP_TUNNEL_ATTR_TOS] = { .type = NL_A_U8, .optional = true },
731 [ODP_TUNNEL_ATTR_TTL] = { .type = NL_A_U8, .optional = true },
735 ofpbuf_use_const(&buf, options, options_len);
736 if (!nl_policy_parse(&buf, 0, odp_tunnel_policy,
737 a, ARRAY_SIZE(odp_tunnel_policy))) {
744 get_be64_or_zero(const struct nlattr *a)
746 return a ? ntohll(nl_attr_get_be64(a)) : 0;
750 unparse_tunnel_config(const char *name OVS_UNUSED, const char *type OVS_UNUSED,
751 const struct nlattr *options, size_t options_len,
754 struct nlattr *a[ODP_TUNNEL_ATTR_MAX + 1];
759 error = tnl_port_config_from_nlattr(options, options_len, a);
764 flags = nl_attr_get_u32(a[ODP_TUNNEL_ATTR_FLAGS]);
765 if (!(flags & TNL_F_HDR_CACHE) == !(flags & TNL_F_IPSEC)) {
766 smap_add(args, "header_cache",
767 flags & TNL_F_HDR_CACHE ? "true" : "false");
770 daddr = nl_attr_get_be32(a[ODP_TUNNEL_ATTR_DST_IPV4]);
771 shash_add(args, "remote_ip", xasprintf(IP_FMT, IP_ARGS(&daddr)));
773 if (a[ODP_TUNNEL_ATTR_SRC_IPV4]) {
774 ovs_be32 saddr = nl_attr_get_be32(a[ODP_TUNNEL_ATTR_SRC_IPV4]);
775 shash_add(args, "local_ip", xasprintf(IP_FMT, IP_ARGS(&saddr)));
778 if (!a[ODP_TUNNEL_ATTR_IN_KEY] && !a[ODP_TUNNEL_ATTR_OUT_KEY]) {
779 smap_add(args, "key", "flow");
781 uint64_t in_key = get_be64_or_zero(a[ODP_TUNNEL_ATTR_IN_KEY]);
782 uint64_t out_key = get_be64_or_zero(a[ODP_TUNNEL_ATTR_OUT_KEY]);
784 if (in_key && in_key == out_key) {
785 shash_add(args, "key", xasprintf("%"PRIu64, in_key));
787 if (!a[ODP_TUNNEL_ATTR_IN_KEY]) {
788 smap_add(args, "in_key", "flow");
790 shash_add(args, "in_key", xasprintf("%"PRIu64, in_key));
793 if (!a[ODP_TUNNEL_ATTR_OUT_KEY]) {
794 smap_add(args, "out_key", "flow");
795 } else if (out_key) {
796 shash_add(args, "out_key", xasprintf("%"PRIu64, out_key));
801 if (flags & TNL_F_TTL_INHERIT) {
802 smap_add(args, "tos", "inherit");
803 } else if (a[ODP_TUNNEL_ATTR_TTL]) {
804 int ttl = nl_attr_get_u8(a[ODP_TUNNEL_ATTR_TTL]);
805 shash_add(args, "tos", xasprintf("%d", ttl));
808 if (flags & TNL_F_TOS_INHERIT) {
809 smap_add(args, "tos", "inherit");
810 } else if (a[ODP_TUNNEL_ATTR_TOS]) {
811 int tos = nl_attr_get_u8(a[ODP_TUNNEL_ATTR_TOS]);
812 shash_add(args, "tos", xasprintf("%d", tos));
815 if (flags & TNL_F_CSUM) {
816 smap_add(args, "csum", "true");
818 if (flags & TNL_F_DF_INHERIT) {
819 smap_add(args, "df_inherit", "true");
821 if (!(flags & TNL_F_DF_DEFAULT)) {
822 smap_add(args, "df_default", "false");
824 if (!(flags & TNL_F_PMTUD)) {
825 smap_add(args, "pmtud", "false");
832 parse_patch_config(const char *name, const char *type OVS_UNUSED,
833 const struct shash *args, struct ofpbuf *options)
837 peer = shash_find_data(args, "peer");
839 VLOG_ERR("%s: patch type requires valid 'peer' argument", name);
843 if (shash_count(args) > 1) {
844 VLOG_ERR("%s: patch type takes only a 'peer' argument", name);
848 if (strlen(peer) >= IFNAMSIZ) {
849 VLOG_ERR("%s: patch 'peer' arg too long", name);
853 if (!strcmp(name, peer)) {
854 VLOG_ERR("%s: patch peer must not be self", name);
858 nl_msg_put_string(options, ODP_PATCH_ATTR_PEER, peer);
864 unparse_patch_config(const char *name OVS_UNUSED, const char *type OVS_UNUSED,
865 const struct nlattr *options, size_t options_len,
868 static const struct nl_policy odp_patch_policy[] = {
869 [ODP_PATCH_ATTR_PEER] = { .type = NL_A_STRING,
874 struct nlattr *a[ARRAY_SIZE(odp_patch_policy)];
877 ofpbuf_use_const(&buf, options, options_len);
878 if (!nl_policy_parse(&buf, 0, odp_patch_policy,
879 a, ARRAY_SIZE(odp_patch_policy))) {
883 smap_add(args, "peer", nl_attr_get_string(a[ODP_PATCH_ATTR_PEER]));
887 /* Returns true if 'nd_args' is equivalent to 'args', otherwise false.
888 * Typically, 'nd_args' is the result of a call to unparse_tunnel_config()
889 * and 'args' is the original definition of the port.
891 * IPsec key configuration is handled by an external program, so it is not
892 * pushed down into the kernel module. Thus, when the "unparse_config"
893 * method is called on an existing IPsec-based vport, a simple
894 * comparison with the returned data will not match the original
895 * configuration. This function ignores configuration about keys when
896 * doing a comparison.
899 config_equal_ipsec(const struct shash *nd_args, const struct shash *args)
901 struct shash tmp1, tmp2;
904 smap_clone(&tmp1, nd_args);
905 smap_clone(&tmp2, args);
907 shash_find_and_delete(&tmp1, "psk");
908 shash_find_and_delete(&tmp2, "psk");
909 shash_find_and_delete(&tmp1, "peer_cert");
910 shash_find_and_delete(&tmp2, "peer_cert");
911 shash_find_and_delete(&tmp1, "certificate");
912 shash_find_and_delete(&tmp2, "certificate");
913 shash_find_and_delete(&tmp1, "private_key");
914 shash_find_and_delete(&tmp2, "private_key");
915 shash_find_and_delete(&tmp1, "use_ssl_cert");
916 shash_find_and_delete(&tmp2, "use_ssl_cert");
918 result = smap_equal(&tmp1, &tmp2);
925 #define VPORT_FUNCTIONS(GET_STATUS) \
930 netdev_vport_create, \
931 netdev_vport_destroy, \
932 netdev_vport_set_config, \
933 netdev_vport_config_equal, \
936 netdev_vport_close, \
938 NULL, /* enumerate */ \
941 NULL, /* recv_wait */ \
944 netdev_vport_send, /* send */ \
945 NULL, /* send_wait */ \
947 netdev_vport_set_etheraddr, \
948 netdev_vport_get_etheraddr, \
949 netdev_vport_get_mtu, \
950 NULL, /* get_ifindex */ \
951 NULL, /* get_carrier */ \
952 NULL, /* get_miimon */ \
953 netdev_vport_get_stats, \
954 netdev_vport_set_stats, \
956 NULL, /* get_features */ \
957 NULL, /* set_advertisements */ \
958 NULL, /* get_vlan_vid */ \
960 NULL, /* set_policing */ \
961 NULL, /* get_qos_types */ \
962 NULL, /* get_qos_capabilities */ \
963 NULL, /* get_qos */ \
964 NULL, /* set_qos */ \
965 NULL, /* get_queue */ \
966 NULL, /* set_queue */ \
967 NULL, /* delete_queue */ \
968 NULL, /* get_queue_stats */ \
969 NULL, /* dump_queues */ \
970 NULL, /* dump_queue_stats */ \
972 NULL, /* get_in4 */ \
973 NULL, /* set_in4 */ \
974 NULL, /* get_in6 */ \
975 NULL, /* add_router */ \
976 NULL, /* get_next_hop */ \
978 NULL, /* arp_lookup */ \
980 netdev_vport_update_flags, \
982 netdev_vport_change_seq
985 netdev_vport_register(void)
987 static const struct vport_class vport_classes[] = {
988 { ODP_VPORT_TYPE_GRE,
989 { "gre", VPORT_FUNCTIONS(netdev_vport_get_status) },
990 parse_tunnel_config, unparse_tunnel_config, NULL },
992 { ODP_VPORT_TYPE_GRE,
993 { "ipsec_gre", VPORT_FUNCTIONS(netdev_vport_get_status) },
994 parse_tunnel_config, unparse_tunnel_config, config_equal_ipsec },
996 { ODP_VPORT_TYPE_CAPWAP,
997 { "capwap", VPORT_FUNCTIONS(netdev_vport_get_status) },
998 parse_tunnel_config, unparse_tunnel_config, NULL },
1000 { ODP_VPORT_TYPE_PATCH,
1001 { "patch", VPORT_FUNCTIONS(NULL) },
1002 parse_patch_config, unparse_patch_config, NULL }
1007 for (i = 0; i < ARRAY_SIZE(vport_classes); i++) {
1008 netdev_register_provider(&vport_classes[i].netdev_class);