/*
- * 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 <net/if.h>
#include <sys/ioctl.h>
+#include "byte-order.h"
+#include "daemon.h"
+#include "dirs.h"
+#include "dpif.h"
+#include "hash.h"
+#include "hmap.h"
#include "list.h"
-#include "netdev-vport.h"
-#include "openvswitch/datapath-protocol.h"
+#include "netdev-provider.h"
+#include "ofpbuf.h"
+#include "packets.h"
+#include "poll-loop.h"
+#include "route-table.h"
#include "shash.h"
#include "socket-util.h"
-
-#define THIS_MODULE VLM_netdev_vport
#include "vlog.h"
-struct netdev_vport_notifier {
- struct netdev_notifier notifier;
- struct list list_node;
- struct shash_node *shash_node;
+VLOG_DEFINE_THIS_MODULE(netdev_vport);
+
+#define VXLAN_DST_PORT 4789
+#define LISP_DST_PORT 4341
+
+#define DEFAULT_TTL 64
+
+struct netdev_vport {
+ struct netdev up;
+
+ /* Protects all members below. */
+ struct ovs_mutex mutex;
+
+ uint8_t etheraddr[ETH_ADDR_LEN];
+ struct netdev_stats stats;
+
+ /* Tunnels. */
+ struct netdev_tunnel_config tnl_cfg;
+ char egress_iface[IFNAMSIZ];
+ bool carrier_status;
+
+ /* Patch Ports. */
+ char *peer;
};
-static struct shash netdev_vport_notifiers =
- SHASH_INITIALIZER(&netdev_vport_notifiers);
+struct vport_class {
+ const char *dpif_port;
+ struct netdev_class netdev_class;
+};
+
+/* Last read of the route-table's change number. */
+static uint64_t rt_change_seqno;
-static struct vlog_rate_limit rl = VLOG_RATE_LIMIT_INIT(5, 20);
+static int netdev_vport_construct(struct netdev *);
+static int get_patch_config(const struct netdev *netdev, struct smap *args);
+static int get_tunnel_config(const struct netdev *, struct smap *args);
+static bool tunnel_check_status_change__(struct netdev_vport *);
-int
-netdev_vport_do_ioctl(int cmd, void *arg)
+static bool
+is_vport_class(const struct netdev_class *class)
{
- static int ioctl_fd = -1;
+ return class->construct == netdev_vport_construct;
+}
- 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;
- }
- }
+bool
+netdev_vport_is_vport_class(const struct netdev_class *class)
+{
+ return is_vport_class(class);
+}
- return ioctl(ioctl_fd, cmd, arg) ? errno : 0;
+static const struct vport_class *
+vport_class_cast(const struct netdev_class *class)
+{
+ ovs_assert(is_vport_class(class));
+ return CONTAINER_OF(class, struct vport_class, netdev_class);
}
-int
-netdev_vport_set_etheraddr(struct netdev *netdev,
- const uint8_t mac[ETH_ADDR_LEN])
+static struct netdev_vport *
+netdev_vport_cast(const struct netdev *netdev)
+{
+ ovs_assert(is_vport_class(netdev_get_class(netdev)));
+ return CONTAINER_OF(netdev, struct netdev_vport, up);
+}
+
+static const struct netdev_tunnel_config *
+get_netdev_tunnel_config(const struct netdev *netdev)
{
- struct odp_vport_ether vport_ether;
- int err;
+ return &netdev_vport_cast(netdev)->tnl_cfg;
+}
- ovs_strlcpy(vport_ether.devname, netdev_get_name(netdev),
- sizeof vport_ether.devname);
+bool
+netdev_vport_is_patch(const struct netdev *netdev)
+{
+ const struct netdev_class *class = netdev_get_class(netdev);
- memcpy(vport_ether.ether_addr, mac, ETH_ADDR_LEN);
+ return class->get_config == get_patch_config;
+}
- err = netdev_vport_do_ioctl(ODP_VPORT_ETHER_SET, &vport_ether);
- if (err) {
- return err;
- }
+bool
+netdev_vport_is_layer3(const struct netdev *dev)
+{
+ const char *type = netdev_get_type(dev);
- netdev_vport_poll_notify(netdev);
- return 0;
+ return (!strcmp("lisp", type));
}
-int
-netdev_vport_get_etheraddr(const struct netdev *netdev,
- uint8_t mac[ETH_ADDR_LEN])
+static bool
+netdev_vport_needs_dst_port(const struct netdev *dev)
{
- struct odp_vport_ether vport_ether;
- int err;
+ const struct netdev_class *class = netdev_get_class(dev);
+ const char *type = netdev_get_type(dev);
+
+ return (class->get_config == get_tunnel_config &&
+ (!strcmp("vxlan", type) || !strcmp("lisp", type)));
+}
- ovs_strlcpy(vport_ether.devname, netdev_get_name(netdev),
- sizeof vport_ether.devname);
+const char *
+netdev_vport_class_get_dpif_port(const struct netdev_class *class)
+{
+ return is_vport_class(class) ? vport_class_cast(class)->dpif_port : NULL;
+}
- err = netdev_vport_do_ioctl(ODP_VPORT_ETHER_GET, &vport_ether);
- if (err) {
- return err;
+const char *
+netdev_vport_get_dpif_port(const struct netdev *netdev,
+ char namebuf[], size_t bufsize)
+{
+ if (netdev_vport_needs_dst_port(netdev)) {
+ const struct netdev_vport *vport = netdev_vport_cast(netdev);
+ const char *type = netdev_get_type(netdev);
+
+ /*
+ * Note: IFNAMSIZ is 16 bytes long. The maximum length of a VXLAN
+ * or LISP port name below is 15 or 14 bytes respectively. Still,
+ * assert here on the size of strlen(type) in case that changes
+ * in the future.
+ */
+ BUILD_ASSERT(NETDEV_VPORT_NAME_BUFSIZE >= IFNAMSIZ);
+ ovs_assert(strlen(type) + 10 < IFNAMSIZ);
+ snprintf(namebuf, bufsize, "%s_sys_%d", type,
+ ntohs(vport->tnl_cfg.dst_port));
+ return namebuf;
+ } else {
+ const struct netdev_class *class = netdev_get_class(netdev);
+ const char *dpif_port = netdev_vport_class_get_dpif_port(class);
+ return dpif_port ? dpif_port : netdev_get_name(netdev);
+ }
+}
+
+char *
+netdev_vport_get_dpif_port_strdup(const struct netdev *netdev)
+{
+ char namebuf[NETDEV_VPORT_NAME_BUFSIZE];
+
+ return xstrdup(netdev_vport_get_dpif_port(netdev, namebuf,
+ sizeof namebuf));
+}
+
+/* Whenever the route-table change number is incremented,
+ * netdev_vport_route_changed() should be called to update
+ * the corresponding tunnel interface status. */
+static void
+netdev_vport_route_changed(void)
+{
+ struct netdev **vports;
+ size_t i, n_vports;
+
+ vports = netdev_get_vports(&n_vports);
+ for (i = 0; i < n_vports; i++) {
+ struct netdev *netdev_ = vports[i];
+ struct netdev_vport *netdev = netdev_vport_cast(netdev_);
+
+ ovs_mutex_lock(&netdev->mutex);
+ /* Finds all tunnel vports. */
+ if (netdev->tnl_cfg.ip_dst) {
+ if (tunnel_check_status_change__(netdev)) {
+ netdev_change_seq_changed(netdev_);
+ }
+ }
+ netdev_close(netdev_);
+ ovs_mutex_unlock(&netdev->mutex);
}
- memcpy(mac, vport_ether.ether_addr, ETH_ADDR_LEN);
+ free(vports);
+}
+
+static struct netdev *
+netdev_vport_alloc(void)
+{
+ struct netdev_vport *netdev = xzalloc(sizeof *netdev);
+ return &netdev->up;
+}
+
+static int
+netdev_vport_construct(struct netdev *netdev_)
+{
+ struct netdev_vport *netdev = netdev_vport_cast(netdev_);
+
+ ovs_mutex_init(&netdev->mutex);
+ eth_addr_random(netdev->etheraddr);
+
+ route_table_register();
+
return 0;
}
-int
-netdev_vport_get_mtu(const struct netdev *netdev, int *mtup)
+static void
+netdev_vport_destruct(struct netdev *netdev_)
{
- struct odp_vport_mtu vport_mtu;
- int err;
+ struct netdev_vport *netdev = netdev_vport_cast(netdev_);
- ovs_strlcpy(vport_mtu.devname, netdev_get_name(netdev),
- sizeof vport_mtu.devname);
+ route_table_unregister();
+ free(netdev->peer);
+ ovs_mutex_destroy(&netdev->mutex);
+}
- err = netdev_vport_do_ioctl(ODP_VPORT_MTU_GET, &vport_mtu);
- if (err) {
- return err;
- }
+static void
+netdev_vport_dealloc(struct netdev *netdev_)
+{
+ struct netdev_vport *netdev = netdev_vport_cast(netdev_);
+ free(netdev);
+}
+
+static int
+netdev_vport_set_etheraddr(struct netdev *netdev_,
+ const uint8_t mac[ETH_ADDR_LEN])
+{
+ struct netdev_vport *netdev = netdev_vport_cast(netdev_);
+
+ ovs_mutex_lock(&netdev->mutex);
+ memcpy(netdev->etheraddr, mac, ETH_ADDR_LEN);
+ ovs_mutex_unlock(&netdev->mutex);
+ netdev_change_seq_changed(netdev_);
- *mtup = vport_mtu.mtu;
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;
+ struct netdev_vport *netdev = netdev_vport_cast(netdev_);
+
+ ovs_mutex_lock(&netdev->mutex);
+ memcpy(mac, netdev->etheraddr, ETH_ADDR_LEN);
+ ovs_mutex_unlock(&netdev->mutex);
+
return 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;
+/* Checks if the tunnel status has changed and returns a boolean.
+ * Updates the tunnel status if it has changed. */
+static bool
+tunnel_check_status_change__(struct netdev_vport *netdev)
+ OVS_REQUIRES(netdev->mutex)
+{
+ char iface[IFNAMSIZ];
+ bool status = false;
+ ovs_be32 route;
+
+ iface[0] = '\0';
+ route = netdev->tnl_cfg.ip_dst;
+ if (route_table_get_name(route, iface)) {
+ struct netdev *egress_netdev;
+
+ if (!netdev_open(iface, "system", &egress_netdev)) {
+ status = netdev_get_carrier(egress_netdev);
+ netdev_close(egress_netdev);
+ }
+ }
+
+ if (strcmp(netdev->egress_iface, iface)
+ || netdev->carrier_status != status) {
+ ovs_strlcpy(netdev->egress_iface, iface, IFNAMSIZ);
+ netdev->carrier_status = status;
+
+ return true;
+ }
+
+ return false;
+}
+
+static int
+tunnel_get_status(const struct netdev *netdev_, struct smap *smap)
+{
+ struct netdev_vport *netdev = netdev_vport_cast(netdev_);
+
+ if (netdev->egress_iface[0]) {
+ smap_add(smap, "tunnel_egress_iface", netdev->egress_iface);
+
+ smap_add(smap, "tunnel_egress_iface_carrier",
+ netdev->carrier_status ? "up" : "down");
+ }
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)
+ enum netdev_flags off,
+ enum netdev_flags on OVS_UNUSED,
+ enum netdev_flags *old_flagsp)
{
if (off & (NETDEV_UP | NETDEV_PROMISC)) {
return EOPNOTSUPP;
return 0;
}
-static char *
-make_poll_name(const struct netdev *netdev)
+static void
+netdev_vport_run(void)
+{
+ uint64_t seq;
+
+ route_table_run();
+ seq = route_table_get_change_seq();
+ if (rt_change_seqno != seq) {
+ rt_change_seqno = seq;
+ netdev_vport_route_changed();
+ }
+}
+
+static void
+netdev_vport_wait(void)
+{
+ uint64_t seq;
+
+ route_table_wait();
+ seq = route_table_get_change_seq();
+ if (rt_change_seqno != seq) {
+ poll_immediate_wake();
+ }
+}
+\f
+/* Code specific to tunnel 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 {
+ return htonll(strtoull(s, NULL, 0));
+ }
+}
+
+static int
+set_tunnel_config(struct netdev *dev_, const struct smap *args)
{
- return xasprintf("%s:%s", netdev_get_type(netdev), netdev_get_name(netdev));
+ struct netdev_vport *dev = netdev_vport_cast(dev_);
+ const char *name = netdev_get_name(dev_);
+ const char *type = netdev_get_type(dev_);
+ bool ipsec_mech_set, needs_dst_port, has_csum;
+ struct netdev_tunnel_config tnl_cfg;
+ struct smap_node *node;
+
+ has_csum = strstr(type, "gre");
+ ipsec_mech_set = false;
+ memset(&tnl_cfg, 0, sizeof tnl_cfg);
+
+ needs_dst_port = netdev_vport_needs_dst_port(dev_);
+ tnl_cfg.ipsec = strstr(type, "ipsec");
+ tnl_cfg.dont_fragment = true;
+
+ SMAP_FOR_EACH (node, args) {
+ if (!strcmp(node->key, "remote_ip")) {
+ struct in_addr in_addr;
+ if (!strcmp(node->value, "flow")) {
+ tnl_cfg.ip_dst_flow = true;
+ tnl_cfg.ip_dst = htonl(0);
+ } else if (lookup_ip(node->value, &in_addr)) {
+ VLOG_WARN("%s: bad %s 'remote_ip'", name, type);
+ } else if (ip_is_multicast(in_addr.s_addr)) {
+ VLOG_WARN("%s: multicast remote_ip="IP_FMT" not allowed",
+ name, IP_ARGS(in_addr.s_addr));
+ return EINVAL;
+ } else {
+ tnl_cfg.ip_dst = in_addr.s_addr;
+ }
+ } else if (!strcmp(node->key, "local_ip")) {
+ struct in_addr in_addr;
+ if (!strcmp(node->value, "flow")) {
+ tnl_cfg.ip_src_flow = true;
+ tnl_cfg.ip_src = htonl(0);
+ } else 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")) {
+ tnl_cfg.tos_inherit = true;
+ } else {
+ char *endptr;
+ int tos;
+ tos = strtol(node->value, &endptr, 0);
+ if (*endptr == '\0' && tos == (tos & IP_DSCP_MASK)) {
+ 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")) {
+ tnl_cfg.ttl_inherit = true;
+ } else {
+ tnl_cfg.ttl = atoi(node->value);
+ }
+ } else if (!strcmp(node->key, "dst_port") && needs_dst_port) {
+ tnl_cfg.dst_port = htons(atoi(node->value));
+ } else if (!strcmp(node->key, "csum") && has_csum) {
+ if (!strcmp(node->value, "true")) {
+ tnl_cfg.csum = true;
+ }
+ } else if (!strcmp(node->key, "df_default")) {
+ if (!strcmp(node->value, "false")) {
+ 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);
+ }
+ }
+
+ /* Add a default destination port for VXLAN if none specified. */
+ if (!strcmp(type, "vxlan") && !tnl_cfg.dst_port) {
+ tnl_cfg.dst_port = htons(VXLAN_DST_PORT);
+ }
+
+ /* Add a default destination port for LISP if none specified. */
+ if (!strcmp(type, "lisp") && !tnl_cfg.dst_port) {
+ tnl_cfg.dst_port = htons(LISP_DST_PORT);
+ }
+
+ if (tnl_cfg.ipsec) {
+ static struct ovs_mutex mutex = OVS_MUTEX_INITIALIZER;
+ static pid_t pid = 0;
+
+#ifndef _WIN32
+ ovs_mutex_lock(&mutex);
+ if (pid <= 0) {
+ char *file_name = xasprintf("%s/%s", ovs_rundir(),
+ "ovs-monitor-ipsec.pid");
+ pid = read_pidfile(file_name);
+ free(file_name);
+ }
+ ovs_mutex_unlock(&mutex);
+#endif
+
+ 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 && !tnl_cfg.ip_dst_flow) {
+ VLOG_ERR("%s: %s type requires valid 'remote_ip' argument",
+ name, type);
+ return EINVAL;
+ }
+ if (tnl_cfg.ip_src_flow && !tnl_cfg.ip_dst_flow) {
+ VLOG_ERR("%s: %s type requires 'remote_ip=flow' with 'local_ip=flow'",
+ name, type);
+ return EINVAL;
+ }
+ 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);
+
+ tnl_cfg.out_key = parse_key(args, "out_key",
+ &tnl_cfg.out_key_present,
+ &tnl_cfg.out_key_flow);
+
+ ovs_mutex_lock(&dev->mutex);
+ dev->tnl_cfg = tnl_cfg;
+ tunnel_check_status_change__(dev);
+ netdev_change_seq_changed(dev_);
+ ovs_mutex_unlock(&dev->mutex);
+
+ return 0;
}
-int
-netdev_vport_poll_add(struct netdev *netdev,
- void (*cb)(struct netdev_notifier *), void *aux,
- struct netdev_notifier **notifierp)
+static int
+get_tunnel_config(const struct netdev *dev, struct smap *args)
{
- char *poll_name = make_poll_name(netdev);
- struct netdev_vport_notifier *notifier;
- struct list *list;
- struct shash_node *shash_node;
+ struct netdev_vport *netdev = netdev_vport_cast(dev);
+ struct netdev_tunnel_config tnl_cfg;
+
+ ovs_mutex_lock(&netdev->mutex);
+ tnl_cfg = netdev->tnl_cfg;
+ ovs_mutex_unlock(&netdev->mutex);
- 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);
+ if (tnl_cfg.ip_dst) {
+ smap_add_format(args, "remote_ip", IP_FMT, IP_ARGS(tnl_cfg.ip_dst));
+ } else if (tnl_cfg.ip_dst_flow) {
+ smap_add(args, "remote_ip", "flow");
+ }
+
+ if (tnl_cfg.ip_src) {
+ smap_add_format(args, "local_ip", IP_FMT, IP_ARGS(tnl_cfg.ip_src));
+ } else if (tnl_cfg.ip_src_flow) {
+ smap_add(args, "local_ip", "flow");
+ }
+
+ if (tnl_cfg.in_key_flow && tnl_cfg.out_key_flow) {
+ smap_add(args, "key", "flow");
+ } else if (tnl_cfg.in_key_present && tnl_cfg.out_key_present
+ && tnl_cfg.in_key == tnl_cfg.out_key) {
+ smap_add_format(args, "key", "%"PRIu64, ntohll(tnl_cfg.in_key));
} else {
- list = shash_node->data;
+ if (tnl_cfg.in_key_flow) {
+ smap_add(args, "in_key", "flow");
+ } else if (tnl_cfg.in_key_present) {
+ smap_add_format(args, "in_key", "%"PRIu64,
+ ntohll(tnl_cfg.in_key));
+ }
+
+ if (tnl_cfg.out_key_flow) {
+ smap_add(args, "out_key", "flow");
+ } else if (tnl_cfg.out_key_present) {
+ smap_add_format(args, "out_key", "%"PRIu64,
+ ntohll(tnl_cfg.out_key));
+ }
}
- notifier = xmalloc(sizeof *notifier);
- netdev_notifier_init(¬ifier->notifier, netdev, cb, aux);
- list_push_back(list, ¬ifier->list_node);
- notifier->shash_node = shash_node;
+ if (tnl_cfg.ttl_inherit) {
+ smap_add(args, "ttl", "inherit");
+ } else if (tnl_cfg.ttl != DEFAULT_TTL) {
+ smap_add_format(args, "ttl", "%"PRIu8, tnl_cfg.ttl);
+ }
+
+ if (tnl_cfg.tos_inherit) {
+ smap_add(args, "tos", "inherit");
+ } else if (tnl_cfg.tos) {
+ smap_add_format(args, "tos", "0x%x", tnl_cfg.tos);
+ }
- *notifierp = ¬ifier->notifier;
- free(poll_name);
+ if (tnl_cfg.dst_port) {
+ uint16_t dst_port = ntohs(tnl_cfg.dst_port);
+ const char *type = netdev_get_type(dev);
+
+ if ((!strcmp("vxlan", type) && dst_port != VXLAN_DST_PORT) ||
+ (!strcmp("lisp", type) && dst_port != LISP_DST_PORT)) {
+ smap_add_format(args, "dst_port", "%d", dst_port);
+ }
+ }
+
+ if (tnl_cfg.csum) {
+ smap_add(args, "csum", "true");
+ }
+
+ if (!tnl_cfg.dont_fragment) {
+ smap_add(args, "df_default", "false");
+ }
return 0;
}
+\f
+/* Code specific to patch ports. */
-void
-netdev_vport_poll_remove(struct netdev_notifier *notifier_)
+/* If 'netdev' is a patch port, returns the name of its peer as a malloc()'d
+ * string that the caller must free.
+ *
+ * If 'netdev' is not a patch port, returns NULL. */
+char *
+netdev_vport_patch_peer(const struct netdev *netdev_)
{
- struct netdev_vport_notifier *notifier =
- CONTAINER_OF(notifier_, struct netdev_vport_notifier, notifier);
+ char *peer = NULL;
- struct list *list;
+ if (netdev_vport_is_patch(netdev_)) {
+ struct netdev_vport *netdev = netdev_vport_cast(netdev_);
- list = list_remove(¬ifier->list_node);
- if (list_is_empty(list)) {
- shash_delete(&netdev_vport_notifiers, notifier->shash_node);
- free(list);
+ ovs_mutex_lock(&netdev->mutex);
+ if (netdev->peer) {
+ peer = xstrdup(netdev->peer);
+ }
+ ovs_mutex_unlock(&netdev->mutex);
}
- free(notifier);
+ return peer;
}
void
-netdev_vport_poll_notify(const struct netdev *netdev)
+netdev_vport_inc_rx(const struct netdev *netdev,
+ const struct dpif_flow_stats *stats)
{
- char *poll_name = make_poll_name(netdev);
- struct list *list = shash_find_data(&netdev_vport_notifiers,
- poll_name);
+ if (is_vport_class(netdev_get_class(netdev))) {
+ struct netdev_vport *dev = netdev_vport_cast(netdev);
+
+ ovs_mutex_lock(&dev->mutex);
+ dev->stats.rx_packets += stats->n_packets;
+ dev->stats.rx_bytes += stats->n_bytes;
+ ovs_mutex_unlock(&dev->mutex);
+ }
+}
- if (list) {
- struct netdev_vport_notifier *notifier;
+void
+netdev_vport_inc_tx(const struct netdev *netdev,
+ const struct dpif_flow_stats *stats)
+{
+ if (is_vport_class(netdev_get_class(netdev))) {
+ struct netdev_vport *dev = netdev_vport_cast(netdev);
+
+ ovs_mutex_lock(&dev->mutex);
+ dev->stats.tx_packets += stats->n_packets;
+ dev->stats.tx_bytes += stats->n_bytes;
+ ovs_mutex_unlock(&dev->mutex);
+ }
+}
+
+static int
+get_patch_config(const struct netdev *dev_, struct smap *args)
+{
+ struct netdev_vport *dev = netdev_vport_cast(dev_);
+
+ ovs_mutex_lock(&dev->mutex);
+ if (dev->peer) {
+ smap_add(args, "peer", dev->peer);
+ }
+ ovs_mutex_unlock(&dev->mutex);
+
+ return 0;
+}
- LIST_FOR_EACH (notifier, struct netdev_vport_notifier,
- list_node, list) {
- struct netdev_notifier *n = ¬ifier->notifier;
- n->cb(n);
+static int
+set_patch_config(struct netdev *dev_, const struct smap *args)
+{
+ struct netdev_vport *dev = netdev_vport_cast(dev_);
+ const char *name = netdev_get_name(dev_);
+ const char *peer;
+
+ 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;
+ }
+
+ if (!strcmp(name, peer)) {
+ VLOG_ERR("%s: patch peer must not be self", name);
+ return EINVAL;
+ }
+
+ ovs_mutex_lock(&dev->mutex);
+ free(dev->peer);
+ dev->peer = xstrdup(peer);
+ netdev_change_seq_changed(dev_);
+ ovs_mutex_unlock(&dev->mutex);
+
+ return 0;
+}
+
+static int
+get_stats(const struct netdev *netdev, struct netdev_stats *stats)
+{
+ struct netdev_vport *dev = netdev_vport_cast(netdev);
+
+ ovs_mutex_lock(&dev->mutex);
+ *stats = dev->stats;
+ ovs_mutex_unlock(&dev->mutex);
+
+ return 0;
+}
+\f
+#define VPORT_FUNCTIONS(GET_CONFIG, SET_CONFIG, \
+ GET_TUNNEL_CONFIG, GET_STATUS) \
+ NULL, \
+ netdev_vport_run, \
+ netdev_vport_wait, \
+ \
+ netdev_vport_alloc, \
+ netdev_vport_construct, \
+ netdev_vport_destruct, \
+ netdev_vport_dealloc, \
+ GET_CONFIG, \
+ SET_CONFIG, \
+ GET_TUNNEL_CONFIG, \
+ \
+ 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 */ \
+ 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, /* queue_dump_start */ \
+ NULL, /* queue_dump_next */ \
+ NULL, /* queue_dump_done */ \
+ 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, \
+ \
+ NULL, /* rx_alloc */ \
+ NULL, /* rx_construct */ \
+ NULL, /* rx_destruct */ \
+ NULL, /* rx_dealloc */ \
+ NULL, /* rx_recv */ \
+ NULL, /* rx_wait */ \
+ NULL, /* rx_drain */
+
+#define TUNNEL_CLASS(NAME, DPIF_PORT) \
+ { DPIF_PORT, \
+ { NAME, VPORT_FUNCTIONS(get_tunnel_config, \
+ set_tunnel_config, \
+ get_netdev_tunnel_config, \
+ tunnel_get_status) }}
+
+void
+netdev_vport_tunnel_register(void)
+{
+ static const struct vport_class vport_classes[] = {
+ TUNNEL_CLASS("gre", "gre_system"),
+ TUNNEL_CLASS("ipsec_gre", "gre_system"),
+ TUNNEL_CLASS("gre64", "gre64_system"),
+ TUNNEL_CLASS("ipsec_gre64", "gre64_system"),
+ TUNNEL_CLASS("vxlan", "vxlan_system"),
+ TUNNEL_CLASS("lisp", "lisp_system")
+ };
+ static struct ovsthread_once once = OVSTHREAD_ONCE_INITIALIZER;
+
+ if (ovsthread_once_start(&once)) {
+ int i;
+
+ for (i = 0; i < ARRAY_SIZE(vport_classes); i++) {
+ netdev_register_provider(&vport_classes[i].netdev_class);
}
+ ovsthread_once_done(&once);
}
+}
- free(poll_name);
+void
+netdev_vport_patch_register(void)
+{
+ static const struct vport_class patch_class =
+ { NULL,
+ { "patch", VPORT_FUNCTIONS(get_patch_config,
+ set_patch_config,
+ NULL,
+ NULL) }};
+ netdev_register_provider(&patch_class.netdev_class);
}
git://git.onelab.eu / sliver-openvswitch.git / blobdiff