mirror of
https://github.com/openvswitch/ovs
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e9e28be359
The dpif and netdev code has had various ways to check for changes to dpifs and netdevs over the course of Open vSwitch development. All of these have been thus far fairly specific to the Linux implementation. This commit is the start of a more general API for watching for such changes. The dpif-related parts seem fairly mature and so they are documented, the netdev parts will probably need to change somewhat and so they are not documented yet.
126 lines
5.1 KiB
C
126 lines
5.1 KiB
C
/*
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* Copyright (c) 2008, 2009 Nicira Networks.
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at:
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#ifndef NETDEV_H
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#define NETDEV_H 1
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#include <stdbool.h>
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#include <stddef.h>
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#include <stdint.h>
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/* Generic interface to network devices.
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*
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* Currently, there is a single implementation of this interface that supports
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* Linux. The interface should be generic enough to be implementable on other
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* operating systems as well. */
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struct ofpbuf;
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struct in_addr;
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struct in6_addr;
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struct svec;
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enum netdev_flags {
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NETDEV_UP = 0x0001, /* Device enabled? */
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NETDEV_PROMISC = 0x0002 /* Promiscuous mode? */
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};
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enum netdev_pseudo_ethertype {
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NETDEV_ETH_TYPE_NONE = -128, /* Receive no frames. */
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NETDEV_ETH_TYPE_ANY, /* Receive all frames. */
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NETDEV_ETH_TYPE_802_2 /* Receive all IEEE 802.2 frames. */
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};
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struct netdev_stats {
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uint64_t rx_packets; /* Total packets received. */
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uint64_t tx_packets; /* Total packets transmitted. */
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uint64_t rx_bytes; /* Total bytes received. */
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uint64_t tx_bytes; /* Total bytes transmitted. */
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uint64_t rx_errors; /* Bad packets received. */
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uint64_t tx_errors; /* Packet transmit problems. */
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uint64_t rx_dropped; /* No buffer space. */
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uint64_t tx_dropped; /* No buffer space. */
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uint64_t multicast; /* Multicast packets received. */
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uint64_t collisions;
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/* Detailed receive errors. */
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uint64_t rx_length_errors;
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uint64_t rx_over_errors; /* Receiver ring buff overflow. */
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uint64_t rx_crc_errors; /* Recved pkt with crc error. */
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uint64_t rx_frame_errors; /* Recv'd frame alignment error. */
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uint64_t rx_fifo_errors; /* Recv'r fifo overrun . */
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uint64_t rx_missed_errors; /* Receiver missed packet. */
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/* Detailed transmit errors. */
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uint64_t tx_aborted_errors;
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uint64_t tx_carrier_errors;
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uint64_t tx_fifo_errors;
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uint64_t tx_heartbeat_errors;
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uint64_t tx_window_errors;
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};
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struct netdev;
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int netdev_open(const char *name, int ethertype, struct netdev **);
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int netdev_open_tap(const char *name, struct netdev **);
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void netdev_close(struct netdev *);
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int netdev_recv(struct netdev *, struct ofpbuf *);
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void netdev_recv_wait(struct netdev *);
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int netdev_drain(struct netdev *);
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int netdev_send(struct netdev *, const struct ofpbuf *);
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void netdev_send_wait(struct netdev *);
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int netdev_set_etheraddr(struct netdev *, const uint8_t mac[6]);
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const uint8_t *netdev_get_etheraddr(const struct netdev *);
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const char *netdev_get_name(const struct netdev *);
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int netdev_get_mtu(const struct netdev *);
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int netdev_get_features(struct netdev *,
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uint32_t *current, uint32_t *advertised,
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uint32_t *supported, uint32_t *peer);
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int netdev_set_advertisements(struct netdev *, uint32_t advertise);
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bool netdev_get_in4(const struct netdev *, struct in_addr *);
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int netdev_set_in4(struct netdev *, struct in_addr addr, struct in_addr mask);
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int netdev_add_router(struct in_addr router);
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bool netdev_get_in6(const struct netdev *, struct in6_addr *);
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int netdev_get_flags(const struct netdev *, enum netdev_flags *);
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int netdev_set_flags(struct netdev *, enum netdev_flags, bool permanent);
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int netdev_turn_flags_on(struct netdev *, enum netdev_flags, bool permanent);
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int netdev_turn_flags_off(struct netdev *, enum netdev_flags, bool permanent);
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int netdev_arp_lookup(const struct netdev *, uint32_t ip, uint8_t mac[6]);
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int netdev_get_carrier(const struct netdev *, bool *carrier);
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int netdev_get_stats(const struct netdev *, struct netdev_stats *);
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int netdev_set_policing(struct netdev *, uint32_t kbits_rate,
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uint32_t kbits_burst);
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void netdev_enumerate(struct svec *);
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int netdev_nodev_get_flags(const char *netdev_name, enum netdev_flags *);
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int netdev_nodev_set_etheraddr(const char *name, const uint8_t mac[6]);
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int netdev_nodev_get_etheraddr(const char *netdev_name, uint8_t mac[6]);
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int netdev_nodev_set_policing(const char *netdev_name, uint32_t kbits_rate,
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uint32_t kbits_burst);
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int netdev_nodev_get_carrier(const char *netdev_name, bool *carrier);
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int netdev_get_vlan_vid(const char *netdev_name, int *vlan_vid);
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struct netdev_monitor;
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int netdev_monitor_create(struct netdev_monitor **);
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void netdev_monitor_destroy(struct netdev_monitor *);
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void netdev_monitor_add(struct netdev_monitor *, struct netdev *);
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void netdev_monitor_remove(struct netdev_monitor *, struct netdev *);
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int netdev_monitor_poll(struct netdev_monitor *, char **devnamep);
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void netdev_monitor_poll_wait(const struct netdev_monitor *);
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#endif /* netdev.h */
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