/*
- * Copyright (c) 2010 Nicira Networks.
+ * Copyright (c) 2010, 2011, 2012, 2013 Nicira, Inc.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
*
* http://www.apache.org/licenses/LICENSE-2.0
*
- * Unless required by applicable law or apatched to in writing, software
+ * Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
*/
#include <config.h>
+
+#include "netdev-vport.h"
+
#include <errno.h>
#include <fcntl.h>
+#include <sys/socket.h>
+#include <linux/openvswitch.h>
+#include <linux/rtnetlink.h>
+#include <net/if.h>
#include <sys/ioctl.h>
+#include "byte-order.h"
+#include "daemon.h"
+#include "dirs.h"
+#include "dpif-linux.h"
+#include "hash.h"
+#include "hmap.h"
#include "list.h"
-#include "netdev-vport.h"
-#include "openvswitch/datapath-protocol.h"
+#include "netdev-linux.h"
+#include "netdev-provider.h"
+#include "netlink.h"
+#include "netlink-notifier.h"
+#include "netlink-socket.h"
+#include "ofpbuf.h"
+#include "openvswitch/tunnel.h"
+#include "packets.h"
+#include "route-table.h"
#include "shash.h"
#include "socket-util.h"
+#include "unaligned.h"
#include "vlog.h"
-VLOG_DEFINE_THIS_MODULE(netdev_vport)
+VLOG_DEFINE_THIS_MODULE(netdev_vport);
+
+/* Default to the OTV port, per the VXLAN IETF draft. */
+#define VXLAN_DST_PORT 8472
+
+#define DEFAULT_TTL 64
-struct netdev_vport_notifier {
- struct netdev_notifier notifier;
- struct list list_node;
- struct shash_node *shash_node;
+struct netdev_dev_vport {
+ struct netdev_dev netdev_dev;
+ struct ofpbuf *options;
+ unsigned int change_seq;
+ uint8_t etheraddr[ETH_ADDR_LEN];
+ struct netdev_tunnel_config tnl_cfg;
};
-static struct shash netdev_vport_notifiers =
- SHASH_INITIALIZER(&netdev_vport_notifiers);
+struct vport_class {
+ enum ovs_vport_type type;
+ struct netdev_class netdev_class;
+ int (*parse_config)(const char *name, const char *type,
+ const struct smap *args, struct ofpbuf *options,
+ struct netdev_tunnel_config *tnl_cfg);
+ int (*unparse_config)(const char *name, const char *type,
+ const struct nlattr *options, size_t options_len,
+ struct smap *args);
+};
static struct vlog_rate_limit rl = VLOG_RATE_LIMIT_INIT(5, 20);
-int
-netdev_vport_do_ioctl(int cmd, void *arg)
+static int netdev_vport_create(const struct netdev_class *, const char *,
+ struct netdev_dev **);
+static void netdev_vport_poll_notify(const struct netdev *);
+static int tnl_port_config_from_nlattr(const struct nlattr *options,
+ size_t options_len,
+ struct nlattr *a[OVS_TUNNEL_ATTR_MAX + 1]);
+
+static bool
+is_vport_class(const struct netdev_class *class)
{
- static int ioctl_fd = -1;
+ return class->create == netdev_vport_create;
+}
- if (ioctl_fd < 0) {
- ioctl_fd = open("/dev/net/dp0", O_RDONLY | O_NONBLOCK);
- if (ioctl_fd < 0) {
- VLOG_ERR_RL(&rl, "failed to open ioctl fd: %s", strerror(errno));
- return errno;
- }
- }
+static const struct vport_class *
+vport_class_cast(const struct netdev_class *class)
+{
+ assert(is_vport_class(class));
+ return CONTAINER_OF(class, struct vport_class, netdev_class);
+}
- return ioctl(ioctl_fd, cmd, arg) ? errno : 0;
+static struct netdev_dev_vport *
+netdev_dev_vport_cast(const struct netdev_dev *netdev_dev)
+{
+ assert(is_vport_class(netdev_dev_get_class(netdev_dev)));
+ return CONTAINER_OF(netdev_dev, struct netdev_dev_vport, netdev_dev);
}
-int
-netdev_vport_set_etheraddr(struct netdev *netdev,
- const uint8_t mac[ETH_ADDR_LEN])
+static struct netdev_dev_vport *
+netdev_vport_get_dev(const struct netdev *netdev)
{
- struct odp_vport_ether vport_ether;
- int err;
+ return netdev_dev_vport_cast(netdev_get_dev(netdev));
+}
- ovs_strlcpy(vport_ether.devname, netdev_get_name(netdev),
- sizeof vport_ether.devname);
+static const struct netdev_tunnel_config *
+get_netdev_tunnel_config(const struct netdev_dev *netdev_dev)
+{
+ return &netdev_dev_vport_cast(netdev_dev)->tnl_cfg;
+}
- memcpy(vport_ether.ether_addr, mac, ETH_ADDR_LEN);
+/* If 'netdev' is a vport netdev, returns an ofpbuf that contains Netlink
+ * options to include in OVS_VPORT_ATTR_OPTIONS for configuring that vport.
+ * Otherwise returns NULL. */
+const struct ofpbuf *
+netdev_vport_get_options(const struct netdev *netdev)
+{
+ const struct netdev_dev *dev = netdev_get_dev(netdev);
- err = netdev_vport_do_ioctl(ODP_VPORT_ETHER_SET, &vport_ether);
- if (err) {
- return err;
- }
+ return (is_vport_class(netdev_dev_get_class(dev))
+ ? netdev_dev_vport_cast(dev)->options
+ : NULL);
+}
- netdev_vport_poll_notify(netdev);
- return 0;
+enum ovs_vport_type
+netdev_vport_get_vport_type(const struct netdev *netdev)
+{
+ const struct netdev_dev *dev = netdev_get_dev(netdev);
+ const struct netdev_class *class = netdev_dev_get_class(dev);
+
+ return (is_vport_class(class) ? vport_class_cast(class)->type
+ : class == &netdev_internal_class ? OVS_VPORT_TYPE_INTERNAL
+ : (class == &netdev_linux_class ||
+ class == &netdev_tap_class) ? OVS_VPORT_TYPE_NETDEV
+ : OVS_VPORT_TYPE_UNSPEC);
}
-int
-netdev_vport_get_etheraddr(const struct netdev *netdev,
- uint8_t mac[ETH_ADDR_LEN])
+static uint32_t
+get_u32_or_zero(const struct nlattr *a)
{
- struct odp_vport_ether vport_ether;
- int err;
+ return a ? nl_attr_get_u32(a) : 0;
+}
+
+const char *
+netdev_vport_get_netdev_type(const struct dpif_linux_vport *vport)
+{
+ struct nlattr *a[OVS_TUNNEL_ATTR_MAX + 1];
+
+ switch (vport->type) {
+ case OVS_VPORT_TYPE_UNSPEC:
+ break;
+
+ case OVS_VPORT_TYPE_NETDEV:
+ return "system";
+
+ case OVS_VPORT_TYPE_INTERNAL:
+ return "internal";
- ovs_strlcpy(vport_ether.devname, netdev_get_name(netdev),
- sizeof vport_ether.devname);
+ case OVS_VPORT_TYPE_PATCH:
+ return "patch";
- err = netdev_vport_do_ioctl(ODP_VPORT_ETHER_GET, &vport_ether);
- if (err) {
- return err;
+ case OVS_VPORT_TYPE_GRE:
+ if (tnl_port_config_from_nlattr(vport->options, vport->options_len,
+ a)) {
+ break;
+ }
+ return (get_u32_or_zero(a[OVS_TUNNEL_ATTR_FLAGS]) & TNL_F_IPSEC
+ ? "ipsec_gre" : "gre");
+
+ case OVS_VPORT_TYPE_GRE64:
+ if (tnl_port_config_from_nlattr(vport->options, vport->options_len,
+ a)) {
+ break;
+ }
+ return (get_u32_or_zero(a[OVS_TUNNEL_ATTR_FLAGS]) & TNL_F_IPSEC
+ ? "ipsec_gre64" : "gre64");
+
+ case OVS_VPORT_TYPE_CAPWAP:
+ return "capwap";
+
+ case OVS_VPORT_TYPE_VXLAN:
+ return "vxlan";
+
+ case OVS_VPORT_TYPE_FT_GRE:
+ case __OVS_VPORT_TYPE_MAX:
+ break;
}
- memcpy(mac, vport_ether.ether_addr, ETH_ADDR_LEN);
+ VLOG_WARN_RL(&rl, "dp%d: port `%s' has unsupported type %u",
+ vport->dp_ifindex, vport->name, (unsigned int) vport->type);
+ return "unknown";
+}
+
+static int
+netdev_vport_create(const struct netdev_class *netdev_class, const char *name,
+ struct netdev_dev **netdev_devp)
+{
+ struct netdev_dev_vport *dev;
+
+ dev = xzalloc(sizeof *dev);
+ netdev_dev_init(&dev->netdev_dev, name, netdev_class);
+ dev->change_seq = 1;
+ eth_addr_random(dev->etheraddr);
+
+ *netdev_devp = &dev->netdev_dev;
+ route_table_register();
+
return 0;
}
-int
-netdev_vport_get_mtu(const struct netdev *netdev, int *mtup)
+static void
+netdev_vport_destroy(struct netdev_dev *netdev_dev_)
+{
+ struct netdev_dev_vport *netdev_dev = netdev_dev_vport_cast(netdev_dev_);
+
+ ofpbuf_delete(netdev_dev->options);
+ route_table_unregister();
+ free(netdev_dev);
+}
+
+static int
+netdev_vport_open(struct netdev_dev *netdev_dev, struct netdev **netdevp)
+{
+ *netdevp = xmalloc(sizeof **netdevp);
+ netdev_init(*netdevp, netdev_dev);
+ return 0;
+}
+
+static void
+netdev_vport_close(struct netdev *netdev)
+{
+ free(netdev);
+}
+
+static int
+netdev_vport_get_config(struct netdev_dev *dev_, struct smap *args)
{
- struct odp_vport_mtu vport_mtu;
- int err;
+ const struct netdev_class *netdev_class = netdev_dev_get_class(dev_);
+ const struct vport_class *vport_class = vport_class_cast(netdev_class);
+ struct netdev_dev_vport *dev = netdev_dev_vport_cast(dev_);
+ const char *name = netdev_dev_get_name(dev_);
+ int error;
+
+ if (!dev->options) {
+ struct dpif_linux_vport reply;
+ struct ofpbuf *buf;
+
+ error = dpif_linux_vport_get(name, &reply, &buf);
+ if (error) {
+ VLOG_ERR_RL(&rl, "%s: vport query failed (%s)",
+ name, strerror(error));
+ return error;
+ }
+
+ dev->options = ofpbuf_clone_data(reply.options, reply.options_len);
+ ofpbuf_delete(buf);
+ }
- ovs_strlcpy(vport_mtu.devname, netdev_get_name(netdev),
- sizeof vport_mtu.devname);
+ error = vport_class->unparse_config(name, netdev_class->type,
+ dev->options->data,
+ dev->options->size,
+ args);
+ if (error) {
+ VLOG_ERR_RL(&rl, "%s: failed to parse kernel config (%s)",
+ name, strerror(error));
+ }
+ return error;
+}
- err = netdev_vport_do_ioctl(ODP_VPORT_MTU_GET, &vport_mtu);
- if (err) {
- return err;
+static int
+netdev_vport_set_config(struct netdev_dev *dev_, const struct smap *args)
+{
+ const struct netdev_class *netdev_class = netdev_dev_get_class(dev_);
+ const struct vport_class *vport_class = vport_class_cast(netdev_class);
+ struct netdev_dev_vport *dev = netdev_dev_vport_cast(dev_);
+ const char *name = netdev_dev_get_name(dev_);
+ struct netdev_tunnel_config tnl_cfg;
+ struct ofpbuf *options;
+ int error;
+
+ options = ofpbuf_new(64);
+ error = vport_class->parse_config(name, netdev_dev_get_type(dev_),
+ args, options, &tnl_cfg);
+ if (!error
+ && (!dev->options
+ || options->size != dev->options->size
+ || memcmp(options->data, dev->options->data, options->size))) {
+ struct dpif_linux_vport vport;
+
+ dpif_linux_vport_init(&vport);
+ vport.cmd = OVS_VPORT_CMD_SET;
+ vport.name = name;
+ vport.options = options->data;
+ vport.options_len = options->size;
+ error = dpif_linux_vport_transact(&vport, NULL, NULL);
+ if (!error || error == ENODEV) {
+ /* Either reconfiguration succeeded or this vport is not installed
+ * in the kernel (e.g. it hasn't been added to a dpif yet with
+ * dpif_port_add()). */
+ ofpbuf_delete(dev->options);
+ dev->options = options;
+ dev->tnl_cfg = tnl_cfg;
+ options = NULL;
+ error = 0;
+ }
}
+ ofpbuf_delete(options);
+
+ return error;
+}
- *mtup = vport_mtu.mtu;
+static int
+netdev_vport_set_etheraddr(struct netdev *netdev,
+ const uint8_t mac[ETH_ADDR_LEN])
+{
+ memcpy(netdev_vport_get_dev(netdev)->etheraddr, mac, ETH_ADDR_LEN);
+ netdev_vport_poll_notify(netdev);
return 0;
}
-int
-netdev_vport_get_carrier(const struct netdev *netdev OVS_UNUSED, bool *carrier)
+static int
+netdev_vport_get_etheraddr(const struct netdev *netdev,
+ uint8_t mac[ETH_ADDR_LEN])
{
- *carrier = true;
+ memcpy(mac, netdev_vport_get_dev(netdev)->etheraddr, ETH_ADDR_LEN);
return 0;
}
+/* Copies 'src' into 'dst', performing format conversion in the process.
+ *
+ * 'src' is allowed to be misaligned. */
+static void
+netdev_stats_from_ovs_vport_stats(struct netdev_stats *dst,
+ const struct ovs_vport_stats *src)
+{
+ dst->rx_packets = get_unaligned_u64(&src->rx_packets);
+ dst->tx_packets = get_unaligned_u64(&src->tx_packets);
+ dst->rx_bytes = get_unaligned_u64(&src->rx_bytes);
+ dst->tx_bytes = get_unaligned_u64(&src->tx_bytes);
+ dst->rx_errors = get_unaligned_u64(&src->rx_errors);
+ dst->tx_errors = get_unaligned_u64(&src->tx_errors);
+ dst->rx_dropped = get_unaligned_u64(&src->rx_dropped);
+ dst->tx_dropped = get_unaligned_u64(&src->tx_dropped);
+ dst->multicast = 0;
+ dst->collisions = 0;
+ dst->rx_length_errors = 0;
+ dst->rx_over_errors = 0;
+ dst->rx_crc_errors = 0;
+ dst->rx_frame_errors = 0;
+ dst->rx_fifo_errors = 0;
+ dst->rx_missed_errors = 0;
+ dst->tx_aborted_errors = 0;
+ dst->tx_carrier_errors = 0;
+ dst->tx_fifo_errors = 0;
+ dst->tx_heartbeat_errors = 0;
+ dst->tx_window_errors = 0;
+}
+
int
netdev_vport_get_stats(const struct netdev *netdev, struct netdev_stats *stats)
{
- const char *name = netdev_get_name(netdev);
- struct odp_vport_stats_req ovsr;
- int err;
-
- ovs_strlcpy(ovsr.devname, name, sizeof ovsr.devname);
- err = netdev_vport_do_ioctl(ODP_VPORT_STATS_GET, &ovsr);
- if (err) {
- return err;
- }
-
- stats->rx_packets = ovsr.stats.rx_packets;
- stats->tx_packets = ovsr.stats.tx_packets;
- stats->rx_bytes = ovsr.stats.rx_bytes;
- stats->tx_bytes = ovsr.stats.tx_bytes;
- stats->rx_errors = ovsr.stats.rx_errors;
- stats->tx_errors = ovsr.stats.tx_errors;
- stats->rx_dropped = ovsr.stats.rx_dropped;
- stats->tx_dropped = ovsr.stats.tx_dropped;
- stats->multicast = UINT64_MAX;
- stats->collisions = ovsr.stats.collisions;
- stats->rx_length_errors = UINT64_MAX;
- stats->rx_over_errors = ovsr.stats.rx_over_err;
- stats->rx_crc_errors = ovsr.stats.rx_crc_err;
- stats->rx_frame_errors = ovsr.stats.rx_frame_err;
- stats->rx_fifo_errors = UINT64_MAX;
- stats->rx_missed_errors = UINT64_MAX;
- stats->tx_aborted_errors = UINT64_MAX;
- stats->tx_carrier_errors = UINT64_MAX;
- stats->tx_fifo_errors = UINT64_MAX;
- stats->tx_heartbeat_errors = UINT64_MAX;
- stats->tx_window_errors = UINT64_MAX;
+ struct dpif_linux_vport reply;
+ struct ofpbuf *buf;
+ int error;
+
+ error = dpif_linux_vport_get(netdev_get_name(netdev), &reply, &buf);
+ if (error) {
+ return error;
+ } else if (!reply.stats) {
+ ofpbuf_delete(buf);
+ return EOPNOTSUPP;
+ }
+
+ netdev_stats_from_ovs_vport_stats(stats, reply.stats);
+
+ ofpbuf_delete(buf);
return 0;
}
-int
-netdev_vport_set_stats(struct netdev *netdev, const struct netdev_stats *stats)
+static int
+tunnel_get_status(const struct netdev *netdev, struct smap *smap)
{
- struct odp_vport_stats_req ovsr;
- int err;
-
- ovs_strlcpy(ovsr.devname, netdev_get_name(netdev), sizeof ovsr.devname);
+ static char iface[IFNAMSIZ];
+ ovs_be32 route;
- ovsr.stats.rx_packets = stats->rx_packets;
- ovsr.stats.tx_packets = stats->tx_packets;
- ovsr.stats.rx_bytes = stats->rx_bytes;
- ovsr.stats.tx_bytes = stats->tx_bytes;
- ovsr.stats.rx_errors = stats->rx_errors;
- ovsr.stats.tx_errors = stats->tx_errors;
- ovsr.stats.rx_dropped = stats->rx_dropped;
- ovsr.stats.tx_dropped = stats->tx_dropped;
- ovsr.stats.collisions = stats->collisions;
- ovsr.stats.rx_over_err = stats->rx_over_errors;
- ovsr.stats.rx_crc_err = stats->rx_crc_errors;
- ovsr.stats.rx_frame_err = stats->rx_frame_errors;
+ route = netdev_vport_get_dev(netdev)->tnl_cfg.ip_dst;
+ if (route_table_get_name(route, iface)) {
+ struct netdev *egress_netdev;
- err = netdev_vport_do_ioctl(ODP_VPORT_STATS_SET, &ovsr);
+ smap_add(smap, "tunnel_egress_iface", iface);
- /* If the vport layer doesn't know about the device, that doesn't mean it
- * doesn't exist (after all were able to open it when netdev_open() was
- * called), it just means that it isn't attached and we'll be getting
- * stats a different way. */
- if (err == ENODEV) {
- err = EOPNOTSUPP;
+ if (!netdev_open(iface, "system", &egress_netdev)) {
+ smap_add(smap, "tunnel_egress_iface_carrier",
+ netdev_get_carrier(egress_netdev) ? "up" : "down");
+ netdev_close(egress_netdev);
+ }
}
- return err;
+ return 0;
}
-int
+static int
netdev_vport_update_flags(struct netdev *netdev OVS_UNUSED,
enum netdev_flags off, enum netdev_flags on OVS_UNUSED,
enum netdev_flags *old_flagsp)
return 0;
}
-static char *
-make_poll_name(const struct netdev *netdev)
+static unsigned int
+netdev_vport_change_seq(const struct netdev *netdev)
{
- return xasprintf("%s:%s", netdev_get_type(netdev), netdev_get_name(netdev));
+ return netdev_vport_get_dev(netdev)->change_seq;
}
-int
-netdev_vport_poll_add(struct netdev *netdev,
- void (*cb)(struct netdev_notifier *), void *aux,
- struct netdev_notifier **notifierp)
-{
- char *poll_name = make_poll_name(netdev);
- struct netdev_vport_notifier *notifier;
- struct list *list;
- struct shash_node *shash_node;
-
- shash_node = shash_find_data(&netdev_vport_notifiers, poll_name);
- if (!shash_node) {
- list = xmalloc(sizeof *list);
- list_init(list);
- shash_node = shash_add(&netdev_vport_notifiers,
- netdev_get_name(netdev), list);
+static void
+netdev_vport_run(void)
+{
+ route_table_run();
+}
+
+static void
+netdev_vport_wait(void)
+{
+ route_table_wait();
+}
+\f
+/* Helper functions. */
+
+static void
+netdev_vport_poll_notify(const struct netdev *netdev)
+{
+ struct netdev_dev_vport *ndv = netdev_vport_get_dev(netdev);
+
+ ndv->change_seq++;
+ if (!ndv->change_seq) {
+ ndv->change_seq++;
+ }
+}
+\f
+/* Code specific to individual vport types. */
+
+static ovs_be64
+parse_key(const struct smap *args, const char *name,
+ bool *present, bool *flow)
+{
+ const char *s;
+
+ *present = false;
+ *flow = false;
+
+ s = smap_get(args, name);
+ if (!s) {
+ s = smap_get(args, "key");
+ if (!s) {
+ return 0;
+ }
+ }
+
+ *present = true;
+
+ if (!strcmp(s, "flow")) {
+ *flow = true;
+ return 0;
} else {
- list = shash_node->data;
+ return htonll(strtoull(s, NULL, 0));
+ }
+}
+
+static int
+parse_tunnel_config(const char *name, const char *type,
+ const struct smap *args, struct ofpbuf *options,
+ struct netdev_tunnel_config *tnl_cfg_)
+{
+ bool ipsec_mech_set, needs_dst_port, has_csum;
+ struct netdev_tunnel_config tnl_cfg;
+ struct smap_node *node;
+ uint8_t flags;
+
+ flags = TNL_F_DF_DEFAULT;
+ has_csum = strstr(type, "gre");
+ ipsec_mech_set = false;
+ memset(&tnl_cfg, 0, sizeof tnl_cfg);
+
+ if (!strcmp(type, "capwap")) {
+ VLOG_WARN_ONCE("CAPWAP tunnel support is deprecated.");
}
- notifier = xmalloc(sizeof *notifier);
- netdev_notifier_init(¬ifier->notifier, netdev, cb, aux);
- list_push_back(list, ¬ifier->list_node);
- notifier->shash_node = shash_node;
+ needs_dst_port = !strcmp(type, "vxlan");
+ tnl_cfg.ipsec = strstr(type, "ipsec");
+ if (tnl_cfg.ipsec) {
+ flags |= TNL_F_IPSEC;
+ }
+ tnl_cfg.dont_fragment = true;
+
+ SMAP_FOR_EACH (node, args) {
+ if (!strcmp(node->key, "remote_ip")) {
+ struct in_addr in_addr;
+ if (lookup_ip(node->value, &in_addr)) {
+ VLOG_WARN("%s: bad %s 'remote_ip'", name, type);
+ } else {
+ tnl_cfg.ip_dst = in_addr.s_addr;
+ }
+ } else if (!strcmp(node->key, "local_ip")) {
+ struct in_addr in_addr;
+ if (lookup_ip(node->value, &in_addr)) {
+ VLOG_WARN("%s: bad %s 'local_ip'", name, type);
+ } else {
+ tnl_cfg.ip_src = in_addr.s_addr;
+ }
+ } else if (!strcmp(node->key, "tos")) {
+ if (!strcmp(node->value, "inherit")) {
+ flags |= TNL_F_TOS_INHERIT;
+ tnl_cfg.tos_inherit = true;
+ } else {
+ char *endptr;
+ int tos;
+ tos = strtol(node->value, &endptr, 0);
+ if (*endptr == '\0' && tos == (tos & IP_DSCP_MASK)) {
+ nl_msg_put_u8(options, OVS_TUNNEL_ATTR_TOS, tos);
+ tnl_cfg.tos = tos;
+ } else {
+ VLOG_WARN("%s: invalid TOS %s", name, node->value);
+ }
+ }
+ } else if (!strcmp(node->key, "ttl")) {
+ if (!strcmp(node->value, "inherit")) {
+ flags |= TNL_F_TTL_INHERIT;
+ tnl_cfg.ttl_inherit = true;
+ } else {
+ nl_msg_put_u8(options, OVS_TUNNEL_ATTR_TTL, atoi(node->value));
+ tnl_cfg.ttl = atoi(node->value);
+ }
+ } else if (!strcmp(node->key, "dst_port") && needs_dst_port) {
+ tnl_cfg.dst_port = htons(atoi(node->value));
+ nl_msg_put_u16(options, OVS_TUNNEL_ATTR_DST_PORT,
+ atoi(node->value));
+ } else if (!strcmp(node->key, "csum") && has_csum) {
+ if (!strcmp(node->value, "true")) {
+ flags |= TNL_F_CSUM;
+ tnl_cfg.csum = true;
+ }
+ } else if (!strcmp(node->key, "df_default")) {
+ if (!strcmp(node->value, "false")) {
+ flags &= ~TNL_F_DF_DEFAULT;
+ tnl_cfg.dont_fragment = false;
+ }
+ } else if (!strcmp(node->key, "peer_cert") && tnl_cfg.ipsec) {
+ if (smap_get(args, "certificate")) {
+ ipsec_mech_set = true;
+ } else {
+ const char *use_ssl_cert;
+
+ /* If the "use_ssl_cert" is true, then "certificate" and
+ * "private_key" will be pulled from the SSL table. The
+ * use of this option is strongly discouraged, since it
+ * will like be removed when multiple SSL configurations
+ * are supported by OVS.
+ */
+ use_ssl_cert = smap_get(args, "use_ssl_cert");
+ if (!use_ssl_cert || strcmp(use_ssl_cert, "true")) {
+ VLOG_ERR("%s: 'peer_cert' requires 'certificate' argument",
+ name);
+ return EINVAL;
+ }
+ ipsec_mech_set = true;
+ }
+ } else if (!strcmp(node->key, "psk") && tnl_cfg.ipsec) {
+ ipsec_mech_set = true;
+ } else if (tnl_cfg.ipsec
+ && (!strcmp(node->key, "certificate")
+ || !strcmp(node->key, "private_key")
+ || !strcmp(node->key, "use_ssl_cert"))) {
+ /* Ignore options not used by the netdev. */
+ } else if (!strcmp(node->key, "key") ||
+ !strcmp(node->key, "in_key") ||
+ !strcmp(node->key, "out_key")) {
+ /* Handled separately below. */
+ } else {
+ VLOG_WARN("%s: unknown %s argument '%s'", name, type, node->key);
+ }
+ }
- *notifierp = ¬ifier->notifier;
- free(poll_name);
+ /* Add a default destination port for VXLAN if none specified. */
+ if (needs_dst_port && !tnl_cfg.dst_port) {
+ nl_msg_put_u16(options, OVS_TUNNEL_ATTR_DST_PORT, VXLAN_DST_PORT);
+ tnl_cfg.dst_port = htons(VXLAN_DST_PORT);
+ }
+
+ if (tnl_cfg.ipsec) {
+ static pid_t pid = 0;
+ if (pid <= 0) {
+ char *file_name = xasprintf("%s/%s", ovs_rundir(),
+ "ovs-monitor-ipsec.pid");
+ pid = read_pidfile(file_name);
+ free(file_name);
+ }
+
+ if (pid < 0) {
+ VLOG_ERR("%s: IPsec requires the ovs-monitor-ipsec daemon",
+ name);
+ return EINVAL;
+ }
+
+ if (smap_get(args, "peer_cert") && smap_get(args, "psk")) {
+ VLOG_ERR("%s: cannot define both 'peer_cert' and 'psk'", name);
+ return EINVAL;
+ }
+
+ if (!ipsec_mech_set) {
+ VLOG_ERR("%s: IPsec requires an 'peer_cert' or psk' argument",
+ name);
+ return EINVAL;
+ }
+ }
+
+ if (!tnl_cfg.ip_dst) {
+ VLOG_ERR("%s: %s type requires valid 'remote_ip' argument",
+ name, type);
+ return EINVAL;
+ }
+ nl_msg_put_be32(options, OVS_TUNNEL_ATTR_DST_IPV4, tnl_cfg.ip_dst);
+
+ if (tnl_cfg.ip_src) {
+ if (ip_is_multicast(tnl_cfg.ip_dst)) {
+ VLOG_WARN("%s: remote_ip is multicast, ignoring local_ip", name);
+ tnl_cfg.ip_src = 0;
+ } else {
+ nl_msg_put_be32(options, OVS_TUNNEL_ATTR_SRC_IPV4, tnl_cfg.ip_src);
+ }
+ }
+
+ if (!tnl_cfg.ttl) {
+ tnl_cfg.ttl = DEFAULT_TTL;
+ }
+
+ tnl_cfg.in_key = parse_key(args, "in_key",
+ &tnl_cfg.in_key_present,
+ &tnl_cfg.in_key_flow);
+ if (tnl_cfg.in_key_present && !tnl_cfg.in_key_flow) {
+ nl_msg_put_be64(options, OVS_TUNNEL_ATTR_IN_KEY, tnl_cfg.in_key);
+ }
+
+ tnl_cfg.out_key = parse_key(args, "out_key",
+ &tnl_cfg.out_key_present,
+ &tnl_cfg.out_key_flow);
+ if (tnl_cfg.out_key_present && !tnl_cfg.out_key_flow) {
+ nl_msg_put_be64(options, OVS_TUNNEL_ATTR_OUT_KEY, tnl_cfg.out_key);
+ }
+ nl_msg_put_u32(options, OVS_TUNNEL_ATTR_FLAGS, flags);
+
+ *tnl_cfg_ = tnl_cfg;
return 0;
}
-void
-netdev_vport_poll_remove(struct netdev_notifier *notifier_)
+static int
+tnl_port_config_from_nlattr(const struct nlattr *options, size_t options_len,
+ struct nlattr *a[OVS_TUNNEL_ATTR_MAX + 1])
+{
+ static const struct nl_policy ovs_tunnel_policy[] = {
+ [OVS_TUNNEL_ATTR_FLAGS] = { .type = NL_A_U32, .optional = true },
+ [OVS_TUNNEL_ATTR_DST_IPV4] = { .type = NL_A_BE32, .optional = true },
+ [OVS_TUNNEL_ATTR_SRC_IPV4] = { .type = NL_A_BE32, .optional = true },
+ [OVS_TUNNEL_ATTR_IN_KEY] = { .type = NL_A_BE64, .optional = true },
+ [OVS_TUNNEL_ATTR_OUT_KEY] = { .type = NL_A_BE64, .optional = true },
+ [OVS_TUNNEL_ATTR_TOS] = { .type = NL_A_U8, .optional = true },
+ [OVS_TUNNEL_ATTR_TTL] = { .type = NL_A_U8, .optional = true },
+ [OVS_TUNNEL_ATTR_DST_PORT] = { .type = NL_A_U16, .optional = true },
+ };
+ struct ofpbuf buf;
+
+ ofpbuf_use_const(&buf, options, options_len);
+ if (!nl_policy_parse(&buf, 0, ovs_tunnel_policy,
+ a, ARRAY_SIZE(ovs_tunnel_policy))) {
+ return EINVAL;
+ }
+ return 0;
+}
+
+static uint64_t
+get_be64_or_zero(const struct nlattr *a)
+{
+ return a ? ntohll(nl_attr_get_be64(a)) : 0;
+}
+
+static int
+unparse_tunnel_config(const char *name OVS_UNUSED, const char *type OVS_UNUSED,
+ const struct nlattr *options, size_t options_len,
+ struct smap *args)
{
- struct netdev_vport_notifier *notifier =
- CONTAINER_OF(notifier_, struct netdev_vport_notifier, notifier);
+ struct nlattr *a[OVS_TUNNEL_ATTR_MAX + 1];
+ uint32_t flags;
+ int error;
+
+ error = tnl_port_config_from_nlattr(options, options_len, a);
+ if (error) {
+ return error;
+ }
+
+ if (a[OVS_TUNNEL_ATTR_DST_IPV4]) {
+ ovs_be32 daddr = nl_attr_get_be32(a[OVS_TUNNEL_ATTR_DST_IPV4]);
+ smap_add_format(args, "remote_ip", IP_FMT, IP_ARGS(daddr));
+ }
+
+ if (a[OVS_TUNNEL_ATTR_SRC_IPV4]) {
+ ovs_be32 saddr = nl_attr_get_be32(a[OVS_TUNNEL_ATTR_SRC_IPV4]);
+ smap_add_format(args, "local_ip", IP_FMT, IP_ARGS(saddr));
+ }
+
+ if (!a[OVS_TUNNEL_ATTR_IN_KEY] && !a[OVS_TUNNEL_ATTR_OUT_KEY]) {
+ smap_add(args, "key", "flow");
+ } else {
+ uint64_t in_key = get_be64_or_zero(a[OVS_TUNNEL_ATTR_IN_KEY]);
+ uint64_t out_key = get_be64_or_zero(a[OVS_TUNNEL_ATTR_OUT_KEY]);
+
+ if (in_key && in_key == out_key) {
+ smap_add_format(args, "key", "%"PRIu64, in_key);
+ } else {
+ if (!a[OVS_TUNNEL_ATTR_IN_KEY]) {
+ smap_add(args, "in_key", "flow");
+ } else if (in_key) {
+ smap_add_format(args, "in_key", "%"PRIu64, in_key);
+ }
+
+ if (!a[OVS_TUNNEL_ATTR_OUT_KEY]) {
+ smap_add(args, "out_key", "flow");
+ } else if (out_key) {
+ smap_add_format(args, "out_key", "%"PRIu64, out_key);
+ }
+ }
+ }
+
+ flags = get_u32_or_zero(a[OVS_TUNNEL_ATTR_FLAGS]);
+
+ if (flags & TNL_F_TTL_INHERIT) {
+ smap_add(args, "ttl", "inherit");
+ } else if (a[OVS_TUNNEL_ATTR_TTL]) {
+ int ttl = nl_attr_get_u8(a[OVS_TUNNEL_ATTR_TTL]);
+ smap_add_format(args, "ttl", "%d", ttl);
+ }
- struct list *list;
+ if (flags & TNL_F_TOS_INHERIT) {
+ smap_add(args, "tos", "inherit");
+ } else if (a[OVS_TUNNEL_ATTR_TOS]) {
+ int tos = nl_attr_get_u8(a[OVS_TUNNEL_ATTR_TOS]);
+ smap_add_format(args, "tos", "0x%x", tos);
+ }
+
+ if (a[OVS_TUNNEL_ATTR_DST_PORT]) {
+ uint16_t dst_port = nl_attr_get_u16(a[OVS_TUNNEL_ATTR_DST_PORT]);
+ if (dst_port != VXLAN_DST_PORT) {
+ smap_add_format(args, "dst_port", "%d", dst_port);
+ }
+ }
- list = list_remove(¬ifier->list_node);
- if (list_is_empty(list)) {
- shash_delete(&netdev_vport_notifiers, notifier->shash_node);
- free(list);
+ if (flags & TNL_F_CSUM) {
+ smap_add(args, "csum", "true");
+ }
+ if (flags & TNL_F_DF_INHERIT) {
+ /* Shouldn't happen as "df_inherit" is no longer supported. However,
+ * for completeness we report it if it's there. */
+ smap_add(args, "df_inherit", "true");
+ }
+ if (!(flags & TNL_F_DF_DEFAULT)) {
+ smap_add(args, "df_default", "false");
}
- free(notifier);
+ return 0;
}
-void
-netdev_vport_poll_notify(const struct netdev *netdev)
+static int
+parse_patch_config(const char *name, const char *type OVS_UNUSED,
+ const struct smap *args, struct ofpbuf *options,
+ struct netdev_tunnel_config *tnl_cfg)
{
- char *poll_name = make_poll_name(netdev);
- struct list *list = shash_find_data(&netdev_vport_notifiers,
- poll_name);
+ const char *peer;
- if (list) {
- struct netdev_vport_notifier *notifier;
+ memset(tnl_cfg, 0, sizeof *tnl_cfg);
- LIST_FOR_EACH (notifier, struct netdev_vport_notifier,
- list_node, list) {
- struct netdev_notifier *n = ¬ifier->notifier;
- n->cb(n);
- }
+ peer = smap_get(args, "peer");
+ if (!peer) {
+ VLOG_ERR("%s: patch type requires valid 'peer' argument", name);
+ return EINVAL;
+ }
+
+ if (smap_count(args) > 1) {
+ VLOG_ERR("%s: patch type takes only a 'peer' argument", name);
+ return EINVAL;
}
- free(poll_name);
+ if (strlen(peer) >= IFNAMSIZ) {
+ VLOG_ERR("%s: patch 'peer' arg too long", name);
+ return EINVAL;
+ }
+
+ if (!strcmp(name, peer)) {
+ VLOG_ERR("%s: patch peer must not be self", name);
+ return EINVAL;
+ }
+
+ nl_msg_put_string(options, OVS_PATCH_ATTR_PEER, peer);
+
+ return 0;
+}
+
+static int
+unparse_patch_config(const char *name OVS_UNUSED, const char *type OVS_UNUSED,
+ const struct nlattr *options, size_t options_len,
+ struct smap *args)
+{
+ static const struct nl_policy ovs_patch_policy[] = {
+ [OVS_PATCH_ATTR_PEER] = { .type = NL_A_STRING,
+ .max_len = IFNAMSIZ,
+ .optional = false }
+ };
+
+ struct nlattr *a[ARRAY_SIZE(ovs_patch_policy)];
+ struct ofpbuf buf;
+
+ ofpbuf_use_const(&buf, options, options_len);
+ if (!nl_policy_parse(&buf, 0, ovs_patch_policy,
+ a, ARRAY_SIZE(ovs_patch_policy))) {
+ return EINVAL;
+ }
+
+ smap_add(args, "peer", nl_attr_get_string(a[OVS_PATCH_ATTR_PEER]));
+ return 0;
+}
+\f
+#define VPORT_FUNCTIONS(GET_TUNNEL_CONFIG, GET_STATUS) \
+ NULL, \
+ netdev_vport_run, \
+ netdev_vport_wait, \
+ \
+ netdev_vport_create, \
+ netdev_vport_destroy, \
+ netdev_vport_get_config, \
+ netdev_vport_set_config, \
+ GET_TUNNEL_CONFIG, \
+ \
+ netdev_vport_open, \
+ netdev_vport_close, \
+ \
+ NULL, /* listen */ \
+ NULL, /* recv */ \
+ NULL, /* recv_wait */ \
+ NULL, /* drain */ \
+ \
+ NULL, /* send */ \
+ NULL, /* send_wait */ \
+ \
+ netdev_vport_set_etheraddr, \
+ netdev_vport_get_etheraddr, \
+ NULL, /* get_mtu */ \
+ NULL, /* set_mtu */ \
+ NULL, /* get_ifindex */ \
+ NULL, /* get_carrier */ \
+ NULL, /* get_carrier_resets */ \
+ NULL, /* get_miimon */ \
+ netdev_vport_get_stats, \
+ NULL, /* set_stats */ \
+ \
+ NULL, /* get_features */ \
+ NULL, /* set_advertisements */ \
+ \
+ NULL, /* set_policing */ \
+ NULL, /* get_qos_types */ \
+ NULL, /* get_qos_capabilities */ \
+ NULL, /* get_qos */ \
+ NULL, /* set_qos */ \
+ NULL, /* get_queue */ \
+ NULL, /* set_queue */ \
+ NULL, /* delete_queue */ \
+ NULL, /* get_queue_stats */ \
+ NULL, /* dump_queues */ \
+ NULL, /* dump_queue_stats */ \
+ \
+ NULL, /* get_in4 */ \
+ NULL, /* set_in4 */ \
+ NULL, /* get_in6 */ \
+ NULL, /* add_router */ \
+ NULL, /* get_next_hop */ \
+ GET_STATUS, \
+ NULL, /* arp_lookup */ \
+ \
+ netdev_vport_update_flags, \
+ \
+ netdev_vport_change_seq
+
+#define TUNNEL_CLASS(NAME, VPORT_TYPE) \
+ { VPORT_TYPE, \
+ { NAME, VPORT_FUNCTIONS(get_netdev_tunnel_config, \
+ tunnel_get_status) }, \
+ parse_tunnel_config, unparse_tunnel_config }
+
+void
+netdev_vport_register(void)
+{
+ static const struct vport_class vport_classes[] = {
+ TUNNEL_CLASS("gre", OVS_VPORT_TYPE_GRE),
+ TUNNEL_CLASS("ipsec_gre", OVS_VPORT_TYPE_GRE),
+ TUNNEL_CLASS("gre64", OVS_VPORT_TYPE_GRE64),
+ TUNNEL_CLASS("ipsec_gre64", OVS_VPORT_TYPE_GRE64),
+ TUNNEL_CLASS("capwap", OVS_VPORT_TYPE_CAPWAP),
+ TUNNEL_CLASS("vxlan", OVS_VPORT_TYPE_VXLAN),
+
+ { OVS_VPORT_TYPE_PATCH,
+ { "patch", VPORT_FUNCTIONS(NULL, NULL) },
+ parse_patch_config, unparse_patch_config }
+ };
+
+ int i;
+
+ for (i = 0; i < ARRAY_SIZE(vport_classes); i++) {
+ netdev_register_provider(&vport_classes[i].netdev_class);
+ }
}
git://git.onelab.eu / sliver-openvswitch.git / blobdiff