extern "C" {
#endif
-/* Generic interface to network devices.
+/* Generic interface to network devices ("netdev"s).
*
- * Currently, there is a single implementation of this interface that supports
- * Linux. The interface should be generic enough to be implementable on other
- * operating systems as well. */
+ * Every port on a switch must have a corresponding netdev that must minimally
+ * support a few operations, such as the ability to read the netdev's MTU.
+ * The PORTING file at the top of the source tree has more information in the
+ * "Writing a netdev Provider" section. */
+struct netdev;
+struct netdev_class;
+struct netdev_rx;
+struct netdev_saved_flags;
struct ofpbuf;
struct in_addr;
struct in6_addr;
struct smap;
struct sset;
-enum netdev_flags {
- NETDEV_UP = 0x0001, /* Device enabled? */
- NETDEV_PROMISC = 0x0002, /* Promiscuous mode? */
- NETDEV_LOOPBACK = 0x0004 /* This is a loopback device. */
-};
-
/* Network device statistics.
*
* Values of unsupported statistics are set to all-1-bits (UINT64_MAX). */
ovs_be16 dst_port;
+ bool ip_src_flow;
+ bool ip_dst_flow;
ovs_be32 ip_src;
ovs_be32 ip_dst;
bool dont_fragment;
};
-struct netdev;
-struct netdev_class;
-
void netdev_run(void);
void netdev_wait(void);
void netdev_enumerate_types(struct sset *types);
+bool netdev_is_reserved_name(const char *name);
/* Open and close. */
int netdev_open(const char *name, const char *type, struct netdev **);
+struct netdev *netdev_ref(const struct netdev *);
void netdev_close(struct netdev *);
-bool netdev_exists(const char *name);
-bool netdev_is_open(const char *name);
-
void netdev_parse_name(const char *netdev_name, char **name, char **type);
/* Options. */
int netdev_set_mtu(const struct netdev *, int mtu);
int netdev_get_ifindex(const struct netdev *);
-/* Packet send and receive. */
-int netdev_listen(struct netdev *);
-int netdev_recv(struct netdev *, struct ofpbuf *);
-void netdev_recv_wait(struct netdev *);
-int netdev_drain(struct netdev *);
+/* Packet reception. */
+int netdev_rx_open(struct netdev *, struct netdev_rx **);
+void netdev_rx_close(struct netdev_rx *);
+const char *netdev_rx_get_name(const struct netdev_rx *);
+
+int netdev_rx_recv(struct netdev_rx *, struct ofpbuf *);
+void netdev_rx_wait(struct netdev_rx *);
+int netdev_rx_drain(struct netdev_rx *);
+
+/* Packet transmission. */
int netdev_send(struct netdev *, const struct ofpbuf *);
void netdev_send_wait(struct netdev *);
bool netdev_features_is_full_duplex(enum netdev_features features);
int netdev_set_advertisements(struct netdev *, enum netdev_features advertise);
+/* Flags. */
+enum netdev_flags {
+ NETDEV_UP = 0x0001, /* Device enabled? */
+ NETDEV_PROMISC = 0x0002, /* Promiscuous mode? */
+ NETDEV_LOOPBACK = 0x0004 /* This is a loopback device. */
+};
+
+int netdev_get_flags(const struct netdev *, enum netdev_flags *);
+int netdev_set_flags(struct netdev *, enum netdev_flags,
+ struct netdev_saved_flags **);
+int netdev_turn_flags_on(struct netdev *, enum netdev_flags,
+ struct netdev_saved_flags **);
+int netdev_turn_flags_off(struct netdev *, enum netdev_flags,
+ struct netdev_saved_flags **);
+
+void netdev_restore_flags(struct netdev_saved_flags *);
+
/* TCP/IP stack interface. */
int netdev_get_in4(const struct netdev *, struct in_addr *address,
struct in_addr *netmask);
int netdev_get_status(const struct netdev *, struct smap *);
int netdev_arp_lookup(const struct netdev *, ovs_be32 ip, uint8_t mac[6]);
-int netdev_get_flags(const struct netdev *, enum netdev_flags *);
-int netdev_set_flags(struct netdev *, enum netdev_flags, bool permanent);
-int netdev_turn_flags_on(struct netdev *, enum netdev_flags, bool permanent);
-int netdev_turn_flags_off(struct netdev *, enum netdev_flags, bool permanent);
struct netdev *netdev_find_dev_by_in4(const struct in_addr *);
/* Statistics. */