*/
#include <config.h>
+
+#include "netdev-vport.h"
+
#include <errno.h>
#include <fcntl.h>
+#include <net/if.h>
#include <sys/ioctl.h>
#include "list.h"
-#include "netdev-vport.h"
+#include "netdev-provider.h"
#include "openvswitch/datapath-protocol.h"
+#include "openvswitch/tunnel.h"
+#include "packets.h"
#include "shash.h"
#include "socket-util.h"
#include "vlog.h"
struct shash_node *shash_node;
};
+struct netdev_dev_vport {
+ struct netdev_dev netdev_dev;
+};
+
+struct netdev_vport {
+ struct netdev netdev;
+};
+
+struct vport_info {
+ const char *devname;
+ const char *type;
+ void *config;
+};
+
+struct vport_class {
+ const struct netdev_class netdev_class;
+ int (*parse_config)(struct vport_info *port, const struct shash *args);
+};
+
static struct shash netdev_vport_notifiers =
SHASH_INITIALIZER(&netdev_vport_notifiers);
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_do_ioctl(int cmd, void *arg);
+static int netdev_vport_create(const struct netdev_class *, const char *,
+ const struct shash *, struct netdev_dev **);
+static void netdev_vport_poll_notify(const struct netdev *);
+
+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);
+}
+
+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);
+}
+
+static struct netdev_vport *
+netdev_vport_cast(const struct netdev *netdev)
+{
+ struct netdev_dev *netdev_dev = netdev_get_dev(netdev);
+ assert(is_vport_class(netdev_dev_get_class(netdev_dev)));
+ return CONTAINER_OF(netdev, struct netdev_vport, netdev);
+}
+
+static int
+netdev_vport_parse_config(const struct netdev_class *netdev_class,
+ const char *name, const struct shash *args,
+ void **configp)
+{
+ const struct vport_class *c = vport_class_cast(netdev_class);
+ if (c->parse_config) {
+ struct vport_info info;
+ int error;
+
+ info.devname = name;
+ info.type = netdev_class->type;
+ error = (c->parse_config)(&info, args);
+ *configp = info.config;
+ return error;
+ } else {
+ if (!shash_is_empty(args)) {
+ VLOG_WARN("%s: arguments for %s vports should be empty",
+ name, netdev_class->type);
}
+ *configp = NULL;
+ return 0;
}
+}
- return ioctl(ioctl_fd, cmd, arg) ? errno : 0;
+static int
+netdev_vport_create(const struct netdev_class *class, const char *name,
+ const struct shash *args OVS_UNUSED,
+ struct netdev_dev **netdev_devp)
+{
+ int err;
+ struct odp_vport_add ova;
+ struct netdev_dev_vport *netdev_dev;
+
+ ovs_strlcpy(ova.port_type, class->type, sizeof ova.port_type);
+ ovs_strlcpy(ova.devname, name, sizeof ova.devname);
+ err = netdev_vport_parse_config(class, name, args, &ova.config);
+ if (err) {
+ goto exit;
+ }
+
+ err = netdev_vport_do_ioctl(ODP_VPORT_ADD, &ova);
+
+ if (err == EBUSY) {
+ VLOG_WARN("%s: destroying existing device", name);
+
+ err = netdev_vport_do_ioctl(ODP_VPORT_DEL, ova.devname);
+ if (err) {
+ goto exit;
+ }
+
+ err = netdev_vport_do_ioctl(ODP_VPORT_ADD, &ova);
+ }
+ if (err) {
+ goto exit;
+ }
+
+ netdev_dev = xmalloc(sizeof *netdev_dev);
+ netdev_dev_init(&netdev_dev->netdev_dev, name, class);
+
+ *netdev_devp = &netdev_dev->netdev_dev;
+
+exit:
+ free(ova.config);
+ return err;
}
-int
+static void
+netdev_vport_destroy(struct netdev_dev *netdev_dev_)
+{
+ struct netdev_dev_vport *netdev_dev = netdev_dev_vport_cast(netdev_dev_);
+
+ free(netdev_dev);
+}
+
+static int
+netdev_vport_open(struct netdev_dev *netdev_dev_, int ethertype OVS_UNUSED,
+ struct netdev **netdevp)
+{
+ struct netdev_vport *netdev;
+
+ netdev = xmalloc(sizeof *netdev);
+ netdev_init(&netdev->netdev, netdev_dev_);
+
+ *netdevp = &netdev->netdev;
+ return 0;
+}
+
+static void
+netdev_vport_close(struct netdev *netdev_)
+{
+ struct netdev_vport *netdev = netdev_vport_cast(netdev_);
+ free(netdev);
+}
+
+static int
+netdev_vport_reconfigure(struct netdev_dev *netdev_dev,
+ const struct shash *args)
+{
+ const char *name = netdev_dev_get_name(netdev_dev);
+ struct odp_vport_mod ovm;
+ int err;
+
+ ovs_strlcpy(ovm.devname, name, sizeof ovm.devname);
+ err = netdev_vport_parse_config(netdev_dev_get_class(netdev_dev), name,
+ args, &ovm.config);
+ if (err) {
+ return err;
+ }
+
+ err = netdev_vport_do_ioctl(ODP_VPORT_MOD, &ovm);
+ free(ovm.config);
+ return err;
+}
+
+static int
netdev_vport_set_etheraddr(struct netdev *netdev,
const uint8_t mac[ETH_ADDR_LEN])
{
return 0;
}
-int
+static int
netdev_vport_get_etheraddr(const struct netdev *netdev,
uint8_t mac[ETH_ADDR_LEN])
{
return 0;
}
-int
+static int
netdev_vport_get_mtu(const struct netdev *netdev, int *mtup)
{
struct odp_vport_mtu vport_mtu;
return 0;
}
-int
+static int
netdev_vport_get_carrier(const struct netdev *netdev OVS_UNUSED, bool *carrier)
{
*carrier = true;
return err;
}
-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 xasprintf("%s:%s", netdev_get_type(netdev), netdev_get_name(netdev));
}
-int
+static int
netdev_vport_poll_add(struct netdev *netdev,
void (*cb)(struct netdev_notifier *), void *aux,
struct netdev_notifier **notifierp)
return 0;
}
-void
+static void
netdev_vport_poll_remove(struct netdev_notifier *notifier_)
{
struct netdev_vport_notifier *notifier =
free(notifier);
}
+\f
+/* Helper functions. */
-void
+static int
+netdev_vport_do_ioctl(int cmd, void *arg)
+{
+ static int ioctl_fd = -1;
+
+ 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;
+ }
+ }
+
+ return ioctl(ioctl_fd, cmd, arg) ? errno : 0;
+}
+
+static void
netdev_vport_poll_notify(const struct netdev *netdev)
{
char *poll_name = make_poll_name(netdev);
free(poll_name);
}
+\f
+/* Code specific to individual vport types. */
+
+static int
+parse_tunnel_config(struct vport_info *port, const struct shash *args)
+{
+ const char *name = port->devname;
+ bool is_gre = !strcmp(port->type, "gre");
+ struct tnl_port_config *config;
+ struct shash_node *node;
+ bool ipsec_ip_set = false;
+ bool ipsec_mech_set = false;
+
+ config = port->config = xzalloc(sizeof *config);
+ config->flags |= TNL_F_PMTUD;
+ config->flags |= TNL_F_HDR_CACHE;
+
+ SHASH_FOR_EACH (node, args) {
+ if (!strcmp(node->name, "remote_ip")) {
+ struct in_addr in_addr;
+ if (lookup_ip(node->data, &in_addr)) {
+ VLOG_WARN("%s: bad %s 'remote_ip'", name, port->type);
+ } else {
+ config->daddr = in_addr.s_addr;
+ }
+ } else if (!strcmp(node->name, "local_ip")) {
+ struct in_addr in_addr;
+ if (lookup_ip(node->data, &in_addr)) {
+ VLOG_WARN("%s: bad %s 'local_ip'", name, port->type);
+ } else {
+ config->saddr = in_addr.s_addr;
+ }
+ } else if (!strcmp(node->name, "key") && is_gre) {
+ if (!strcmp(node->data, "flow")) {
+ config->flags |= TNL_F_IN_KEY_MATCH;
+ config->flags |= TNL_F_OUT_KEY_ACTION;
+ } else {
+ config->out_key = config->in_key = htonl(atoi(node->data));
+ }
+ } else if (!strcmp(node->name, "in_key") && is_gre) {
+ if (!strcmp(node->data, "flow")) {
+ config->flags |= TNL_F_IN_KEY_MATCH;
+ } else {
+ config->in_key = htonl(atoi(node->data));
+ }
+ } else if (!strcmp(node->name, "out_key") && is_gre) {
+ if (!strcmp(node->data, "flow")) {
+ config->flags |= TNL_F_OUT_KEY_ACTION;
+ } else {
+ config->out_key = htonl(atoi(node->data));
+ }
+ } else if (!strcmp(node->name, "tos")) {
+ if (!strcmp(node->data, "inherit")) {
+ config->flags |= TNL_F_TOS_INHERIT;
+ } else {
+ config->tos = atoi(node->data);
+ }
+ } else if (!strcmp(node->name, "ttl")) {
+ if (!strcmp(node->data, "inherit")) {
+ config->flags |= TNL_F_TTL_INHERIT;
+ } else {
+ config->ttl = atoi(node->data);
+ }
+ } else if (!strcmp(node->name, "csum") && is_gre) {
+ if (!strcmp(node->data, "true")) {
+ config->flags |= TNL_F_CSUM;
+ }
+ } else if (!strcmp(node->name, "pmtud")) {
+ if (!strcmp(node->data, "false")) {
+ config->flags &= ~TNL_F_PMTUD;
+ }
+ } else if (!strcmp(node->name, "header_cache")) {
+ if (!strcmp(node->data, "false")) {
+ config->flags &= ~TNL_F_HDR_CACHE;
+ }
+ } else if (!strcmp(node->name, "ipsec_local_ip")) {
+ ipsec_ip_set = true;
+ } else if (!strcmp(node->name, "ipsec_cert")
+ || !strcmp(node->name, "ipsec_psk")) {
+ ipsec_mech_set = true;
+ } else {
+ VLOG_WARN("%s: unknown %s argument '%s'",
+ name, port->type, node->name);
+ }
+ }
+
+ /* IPsec doesn't work when header caching is enabled. Disable it if the
+ * IPsec local IP address and authentication mechanism have been defined. */
+ if (ipsec_ip_set && ipsec_mech_set) {
+ VLOG_INFO("%s: header caching disabled due to use of IPsec", name);
+ config->flags &= ~TNL_F_HDR_CACHE;
+ }
+
+ if (!config->daddr) {
+ VLOG_WARN("%s: %s type requires valid 'remote_ip' argument",
+ name, port->type);
+ return EINVAL;
+ }
+
+ return 0;
+}
+
+static int
+parse_patch_config(struct vport_info *port, const struct shash *args)
+{
+ const char *name = port->devname;
+ const char *peer;
+
+ peer = shash_find_data(args, "peer");
+ if (!peer) {
+ VLOG_WARN("%s: patch type requires valid 'peer' argument", name);
+ return EINVAL;
+ }
+
+ if (shash_count(args) > 1) {
+ VLOG_WARN("%s: patch type takes only a 'peer' argument", name);
+ return EINVAL;
+ }
+
+ if (strlen(peer) >= IFNAMSIZ) {
+ VLOG_WARN("%s: patch 'peer' arg too long", name);
+ return EINVAL;
+ }
+
+ if (!strcmp(name, peer)) {
+ VLOG_WARN("%s: patch peer must not be self", name);
+ return EINVAL;
+ }
+
+ port->config = xstrdup(peer);
+
+ return 0;
+}
+\f
+#define VPORT_FUNCTIONS \
+ NULL, /* init */ \
+ NULL, /* run */ \
+ NULL, /* wait */ \
+ \
+ netdev_vport_create, \
+ netdev_vport_destroy, \
+ netdev_vport_reconfigure, \
+ \
+ netdev_vport_open, \
+ netdev_vport_close, \
+ \
+ NULL, /* enumerate */ \
+ \
+ NULL, /* recv */ \
+ NULL, /* recv_wait */ \
+ NULL, /* drain */ \
+ \
+ NULL, /* send */ \
+ NULL, /* send_wait */ \
+ \
+ netdev_vport_set_etheraddr, \
+ netdev_vport_get_etheraddr, \
+ netdev_vport_get_mtu, \
+ NULL, /* get_ifindex */ \
+ netdev_vport_get_carrier, \
+ netdev_vport_get_stats, \
+ netdev_vport_set_stats, \
+ \
+ NULL, /* get_features */ \
+ NULL, /* set_advertisements */ \
+ NULL, /* get_vlan_vid */ \
+ \
+ 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 */ \
+ NULL, /* arp_lookup */ \
+ \
+ netdev_vport_update_flags, \
+ \
+ netdev_vport_poll_add, \
+ netdev_vport_poll_remove,
+
+static const struct vport_class vport_gre_class
+ = { { "gre", VPORT_FUNCTIONS }, parse_tunnel_config };
+
+static const struct vport_class vport_capwap_class
+ = { { "capwap", VPORT_FUNCTIONS }, parse_tunnel_config };
+
+static const struct vport_class vport_patch_class
+ = { { "patch", VPORT_FUNCTIONS }, parse_patch_config };
+
+void
+netdev_vport_register(void)
+{
+ netdev_register_provider(&vport_gre_class.netdev_class);
+ netdev_register_provider(&vport_capwap_class.netdev_class);
+ netdev_register_provider(&vport_patch_class.netdev_class);
+}
git://git.onelab.eu / sliver-openvswitch.git / blobdiff