/*
- * Copyright (c) 2010, 2011, 2012, 2013 Nicira, Inc.
+ * Copyright (c) 2010, 2011, 2012, 2013, 2015 Nicira, Inc.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
#include <errno.h>
+#include "dp-packet.h"
#include "dpif-netdev.h"
#include "dynamic-string.h"
#include "flow.h"
#include "odp-util.h"
#include "ofp-print.h"
#include "ofpbuf.h"
-#include "packet-dpif.h"
+#include "ovs-atomic.h"
#include "packets.h"
#include "pcap-file.h"
#include "poll-loop.h"
#include "timeval.h"
#include "unixctl.h"
#include "reconnect.h"
-#include "vlog.h"
+#include "openvswitch/vlog.h"
VLOG_DEFINE_THIS_MODULE(netdev_dummy);
struct dummy_packet_stream {
struct stream *stream;
- struct ofpbuf rxbuf;
- struct list txq;
+ struct dp_packet rxbuf;
+ struct ovs_list txq;
};
enum dummy_packet_conn_type {
} u;
};
+struct pkt_list_node {
+ struct dp_packet *pkt;
+ struct ovs_list list_node;
+};
+
/* Protects 'dummy_list'. */
static struct ovs_mutex dummy_list_mutex = OVS_MUTEX_INITIALIZER;
/* Contains all 'struct dummy_dev's. */
-static struct list dummy_list OVS_GUARDED_BY(dummy_list_mutex)
- = LIST_INITIALIZER(&dummy_list);
+static struct ovs_list dummy_list OVS_GUARDED_BY(dummy_list_mutex)
+ = OVS_LIST_INITIALIZER(&dummy_list);
struct netdev_dummy {
struct netdev up;
/* In dummy_list. */
- struct list list_node OVS_GUARDED_BY(dummy_list_mutex);
+ struct ovs_list list_node OVS_GUARDED_BY(dummy_list_mutex);
/* Protects all members below. */
struct ovs_mutex mutex OVS_ACQ_AFTER(dummy_list_mutex);
- uint8_t hwaddr[ETH_ADDR_LEN] OVS_GUARDED;
+ struct eth_addr hwaddr OVS_GUARDED;
int mtu OVS_GUARDED;
struct netdev_stats stats OVS_GUARDED;
enum netdev_flags flags OVS_GUARDED;
FILE *tx_pcap, *rxq_pcap OVS_GUARDED;
- struct list rxes OVS_GUARDED; /* List of child "netdev_rxq_dummy"s. */
+ struct in_addr address, netmask;
+ struct ovs_list rxes OVS_GUARDED; /* List of child "netdev_rxq_dummy"s. */
};
/* Max 'recv_queue_len' in struct netdev_dummy. */
struct netdev_rxq_dummy {
struct netdev_rxq up;
- struct list node; /* In netdev_dummy's "rxes" list. */
- struct list recv_queue;
+ struct ovs_list node; /* In netdev_dummy's "rxes" list. */
+ struct ovs_list recv_queue;
int recv_queue_len; /* list_size(&recv_queue). */
struct seq *seq; /* Reports newly queued packets. */
};
static unixctl_cb_func netdev_dummy_set_admin_state;
static int netdev_dummy_construct(struct netdev *);
-static void netdev_dummy_queue_packet(struct netdev_dummy *, struct ofpbuf *);
+static void netdev_dummy_queue_packet(struct netdev_dummy *, struct dp_packet *);
static void dummy_packet_stream_close(struct dummy_packet_stream *);
+static void pkt_list_delete(struct ovs_list *);
+
static bool
is_dummy_class(const struct netdev_class *class)
{
{
int rxbuf_size = stream ? 2048 : 0;
s->stream = stream;
- ofpbuf_init(&s->rxbuf, rxbuf_size);
+ dp_packet_init(&s->rxbuf, rxbuf_size);
list_init(&s->txq);
}
dummy_packet_stream_send(struct dummy_packet_stream *s, const void *buffer, size_t size)
{
if (list_size(&s->txq) < NETDEV_DUMMY_MAX_QUEUE) {
- struct ofpbuf *b;
+ struct dp_packet *b;
+ struct pkt_list_node *node;
- b = ofpbuf_clone_data_with_headroom(buffer, size, 2);
- put_unaligned_be16(ofpbuf_push_uninit(b, 2), htons(size));
- list_push_back(&s->txq, &b->list_node);
+ b = dp_packet_clone_data_with_headroom(buffer, size, 2);
+ put_unaligned_be16(dp_packet_push_uninit(b, 2), htons(size));
+
+ node = xmalloc(sizeof *node);
+ node->pkt = b;
+ list_push_back(&s->txq, &node->list_node);
}
}
stream_run(s->stream);
if (!list_is_empty(&s->txq)) {
- struct ofpbuf *txbuf;
+ struct pkt_list_node *txbuf_node;
+ struct dp_packet *txbuf;
int retval;
- txbuf = ofpbuf_from_list(list_front(&s->txq));
- retval = stream_send(s->stream, ofpbuf_data(txbuf), ofpbuf_size(txbuf));
+ ASSIGN_CONTAINER(txbuf_node, list_front(&s->txq), list_node);
+ txbuf = txbuf_node->pkt;
+ retval = stream_send(s->stream, dp_packet_data(txbuf), dp_packet_size(txbuf));
if (retval > 0) {
- ofpbuf_pull(txbuf, retval);
- if (!ofpbuf_size(txbuf)) {
- list_remove(&txbuf->list_node);
- ofpbuf_delete(txbuf);
+ dp_packet_pull(txbuf, retval);
+ if (!dp_packet_size(txbuf)) {
+ list_remove(&txbuf_node->list_node);
+ free(txbuf_node);
+ dp_packet_delete(txbuf);
}
} else if (retval != -EAGAIN) {
error = -retval;
}
if (!error) {
- if (ofpbuf_size(&s->rxbuf) < 2) {
- n = 2 - ofpbuf_size(&s->rxbuf);
+ if (dp_packet_size(&s->rxbuf) < 2) {
+ n = 2 - dp_packet_size(&s->rxbuf);
} else {
uint16_t frame_len;
- frame_len = ntohs(get_unaligned_be16(ofpbuf_data(&s->rxbuf)));
+ frame_len = ntohs(get_unaligned_be16(dp_packet_data(&s->rxbuf)));
if (frame_len < ETH_HEADER_LEN) {
error = EPROTO;
n = 0;
} else {
- n = (2 + frame_len) - ofpbuf_size(&s->rxbuf);
+ n = (2 + frame_len) - dp_packet_size(&s->rxbuf);
}
}
}
if (!error) {
int retval;
- ofpbuf_prealloc_tailroom(&s->rxbuf, n);
- retval = stream_recv(s->stream, ofpbuf_tail(&s->rxbuf), n);
+ dp_packet_prealloc_tailroom(&s->rxbuf, n);
+ retval = stream_recv(s->stream, dp_packet_tail(&s->rxbuf), n);
if (retval > 0) {
- ofpbuf_set_size(&s->rxbuf, ofpbuf_size(&s->rxbuf) + retval);
- if (retval == n && ofpbuf_size(&s->rxbuf) > 2) {
- ofpbuf_pull(&s->rxbuf, 2);
+ dp_packet_set_size(&s->rxbuf, dp_packet_size(&s->rxbuf) + retval);
+ if (retval == n && dp_packet_size(&s->rxbuf) > 2) {
+ dp_packet_pull(&s->rxbuf, 2);
netdev_dummy_queue_packet(dev,
- ofpbuf_clone(&s->rxbuf));
- ofpbuf_clear(&s->rxbuf);
+ dp_packet_clone(&s->rxbuf));
+ dp_packet_clear(&s->rxbuf);
}
} else if (retval != -EAGAIN) {
error = (retval < 0 ? -retval
- : ofpbuf_size(&s->rxbuf) ? EPROTO
+ : dp_packet_size(&s->rxbuf) ? EPROTO
: EOF);
}
}
dummy_packet_stream_close(struct dummy_packet_stream *s)
{
stream_close(s->stream);
- ofpbuf_uninit(&s->rxbuf);
- ofpbuf_list_delete(&s->txq);
+ dp_packet_uninit(&s->rxbuf);
+ pkt_list_delete(&s->txq);
}
static void
switch (conn->type) {
case PASSIVE:
- if (!strcmp(pstream_get_name(conn->u.pconn.pstream), pstream)) {
+ if (pstream &&
+ !strcmp(pstream_get_name(conn->u.pconn.pstream), pstream)) {
return;
}
dummy_packet_conn_close(conn);
break;
case ACTIVE:
- if (!strcmp(stream_get_name(conn->u.rconn.rstream->stream), stream)) {
+ if (stream &&
+ !strcmp(stream_get_name(conn->u.rconn.rstream->stream), stream)) {
return;
}
dummy_packet_conn_close(conn);
if (stream) {
int error;
struct stream *active_stream;
- struct reconnect *reconnect;;
+ struct reconnect *reconnect;
reconnect = reconnect_create(time_msec());
reconnect_set_name(reconnect, stream);
ovs_mutex_init(&netdev->mutex);
ovs_mutex_lock(&netdev->mutex);
- netdev->hwaddr[0] = 0xaa;
- netdev->hwaddr[1] = 0x55;
- netdev->hwaddr[2] = n >> 24;
- netdev->hwaddr[3] = n >> 16;
- netdev->hwaddr[4] = n >> 8;
- netdev->hwaddr[5] = n;
+ netdev->hwaddr.ea[0] = 0xaa;
+ netdev->hwaddr.ea[1] = 0x55;
+ netdev->hwaddr.ea[2] = n >> 24;
+ netdev->hwaddr.ea[3] = n >> 16;
+ netdev->hwaddr.ea[4] = n >> 8;
+ netdev->hwaddr.ea[5] = n;
netdev->mtu = 1500;
netdev->flags = 0;
netdev->ifindex = -EOPNOTSUPP;
return 0;
}
+static int
+netdev_dummy_get_in4(const struct netdev *netdev_,
+ struct in_addr *address, struct in_addr *netmask)
+{
+ struct netdev_dummy *netdev = netdev_dummy_cast(netdev_);
+
+ ovs_mutex_lock(&netdev->mutex);
+ *address = netdev->address;
+ *netmask = netdev->netmask;
+ ovs_mutex_unlock(&netdev->mutex);
+
+ return address->s_addr ? 0 : EADDRNOTAVAIL;
+}
+
+static int
+netdev_dummy_set_in4(struct netdev *netdev_, struct in_addr address,
+ struct in_addr netmask)
+{
+ struct netdev_dummy *netdev = netdev_dummy_cast(netdev_);
+
+ ovs_mutex_lock(&netdev->mutex);
+ netdev->address = address;
+ netdev->netmask = netmask;
+ ovs_mutex_unlock(&netdev->mutex);
+
+ return 0;
+}
+
static int
netdev_dummy_set_config(struct netdev *netdev_, const struct smap *args)
{
ovs_mutex_lock(&netdev->mutex);
list_remove(&rx->node);
- ofpbuf_list_delete(&rx->recv_queue);
+ pkt_list_delete(&rx->recv_queue);
ovs_mutex_unlock(&netdev->mutex);
seq_destroy(rx->seq);
}
}
static int
-netdev_dummy_rxq_recv(struct netdev_rxq *rxq_, struct dpif_packet **arr,
+netdev_dummy_rxq_recv(struct netdev_rxq *rxq_, struct dp_packet **arr,
int *c)
{
struct netdev_rxq_dummy *rx = netdev_rxq_dummy_cast(rxq_);
struct netdev_dummy *netdev = netdev_dummy_cast(rx->up.netdev);
- struct ofpbuf *packet;
+ struct dp_packet *packet;
ovs_mutex_lock(&netdev->mutex);
if (!list_is_empty(&rx->recv_queue)) {
- packet = ofpbuf_from_list(list_pop_front(&rx->recv_queue));
+ struct pkt_list_node *pkt_node;
+
+ ASSIGN_CONTAINER(pkt_node, list_pop_front(&rx->recv_queue), list_node);
+ packet = pkt_node->pkt;
+ free(pkt_node);
rx->recv_queue_len--;
} else {
packet = NULL;
}
ovs_mutex_lock(&netdev->mutex);
netdev->stats.rx_packets++;
- netdev->stats.rx_bytes += ofpbuf_size(packet);
+ netdev->stats.rx_bytes += dp_packet_size(packet);
ovs_mutex_unlock(&netdev->mutex);
dp_packet_pad(packet);
+ dp_packet_rss_invalidate(packet);
- /* This performs a (sometimes unnecessary) copy */
- arr[0] = dpif_packet_clone_from_ofpbuf(packet);
- dpif_packet_set_dp_hash(arr[0], 0);
- ofpbuf_delete(packet);
+ arr[0] = packet;
*c = 1;
return 0;
}
struct netdev_dummy *netdev = netdev_dummy_cast(rx->up.netdev);
ovs_mutex_lock(&netdev->mutex);
- ofpbuf_list_delete(&rx->recv_queue);
+ pkt_list_delete(&rx->recv_queue);
rx->recv_queue_len = 0;
ovs_mutex_unlock(&netdev->mutex);
}
static int
-netdev_dummy_send(struct netdev *netdev, struct dpif_packet **pkts, int cnt,
- bool may_steal)
+netdev_dummy_send(struct netdev *netdev, int qid OVS_UNUSED,
+ struct dp_packet **pkts, int cnt, bool may_steal)
{
struct netdev_dummy *dev = netdev_dummy_cast(netdev);
int error = 0;
int i;
for (i = 0; i < cnt; i++) {
- const void *buffer = ofpbuf_data(&pkts[i]->ofpbuf);
- size_t size = ofpbuf_size(&pkts[i]->ofpbuf);
+ const void *buffer = dp_packet_data(pkts[i]);
+ size_t size = dp_packet_size(pkts[i]);
if (size < ETH_HEADER_LEN) {
error = EMSGSIZE;
dummy_packet_conn_send(&dev->conn, buffer, size);
+ /* Reply to ARP requests for 'dev''s assigned IP address. */
+ if (dev->address.s_addr) {
+ struct dp_packet packet;
+ struct flow flow;
+
+ dp_packet_use_const(&packet, buffer, size);
+ flow_extract(&packet, &flow);
+ if (flow.dl_type == htons(ETH_TYPE_ARP)
+ && flow.nw_proto == ARP_OP_REQUEST
+ && flow.nw_dst == dev->address.s_addr) {
+ struct dp_packet *reply = dp_packet_new(0);
+ compose_arp(reply, ARP_OP_REPLY, dev->hwaddr, flow.dl_src,
+ false, flow.nw_dst, flow.nw_src);
+ netdev_dummy_queue_packet(dev, reply);
+ }
+ }
+
if (dev->tx_pcap) {
- struct ofpbuf packet;
+ struct dp_packet packet;
- ofpbuf_use_const(&packet, buffer, size);
+ dp_packet_use_const(&packet, buffer, size);
ovs_pcap_write(dev->tx_pcap, &packet);
fflush(dev->tx_pcap);
}
if (may_steal) {
for (i = 0; i < cnt; i++) {
- dpif_packet_delete(pkts[i]);
+ dp_packet_delete(pkts[i]);
}
}
}
static int
-netdev_dummy_set_etheraddr(struct netdev *netdev,
- const uint8_t mac[ETH_ADDR_LEN])
+netdev_dummy_set_etheraddr(struct netdev *netdev, const struct eth_addr mac)
{
struct netdev_dummy *dev = netdev_dummy_cast(netdev);
ovs_mutex_lock(&dev->mutex);
if (!eth_addr_equals(dev->hwaddr, mac)) {
- memcpy(dev->hwaddr, mac, ETH_ADDR_LEN);
+ dev->hwaddr = mac;
netdev_change_seq_changed(netdev);
}
ovs_mutex_unlock(&dev->mutex);
}
static int
-netdev_dummy_get_etheraddr(const struct netdev *netdev,
- uint8_t mac[ETH_ADDR_LEN])
+netdev_dummy_get_etheraddr(const struct netdev *netdev, struct eth_addr *mac)
{
struct netdev_dummy *dev = netdev_dummy_cast(netdev);
ovs_mutex_lock(&dev->mutex);
- memcpy(mac, dev->hwaddr, ETH_ADDR_LEN);
+ *mac = dev->hwaddr;
ovs_mutex_unlock(&dev->mutex);
return 0;
return 0;
}
-static int
-netdev_dummy_set_stats(struct netdev *netdev, const struct netdev_stats *stats)
-{
- struct netdev_dummy *dev = netdev_dummy_cast(netdev);
-
- ovs_mutex_lock(&dev->mutex);
- dev->stats = *stats;
- ovs_mutex_unlock(&dev->mutex);
-
- return 0;
-}
-
static int
netdev_dummy_get_ifindex(const struct netdev *netdev)
{
netdev_dummy_get_config,
netdev_dummy_set_config,
NULL, /* get_tunnel_config */
+ NULL, /* build header */
+ NULL, /* push header */
+ NULL, /* pop header */
NULL, /* get_numa_id */
+ NULL, /* set_multiq */
netdev_dummy_send, /* send */
NULL, /* send_wait */
NULL, /* get_carrier_resets */
NULL, /* get_miimon */
netdev_dummy_get_stats,
- netdev_dummy_set_stats,
NULL, /* get_features */
NULL, /* set_advertisements */
NULL, /* queue_dump_done */
NULL, /* dump_queue_stats */
- NULL, /* get_in4 */
+ netdev_dummy_get_in4, /* get_in4 */
NULL, /* set_in4 */
NULL, /* get_in6 */
NULL, /* add_router */
netdev_dummy_rxq_drain,
};
-static struct ofpbuf *
+static void
+pkt_list_delete(struct ovs_list *l)
+{
+ struct pkt_list_node *pkt;
+
+ LIST_FOR_EACH_POP(pkt, list_node, l) {
+ dp_packet_delete(pkt->pkt);
+ free(pkt);
+ }
+}
+
+static struct dp_packet *
eth_from_packet_or_flow(const char *s)
{
enum odp_key_fitness fitness;
- struct ofpbuf *packet;
+ struct dp_packet *packet;
struct ofpbuf odp_key;
struct flow flow;
int error;
}
/* Convert odp_key to flow. */
- fitness = odp_flow_key_to_flow(ofpbuf_data(&odp_key), ofpbuf_size(&odp_key), &flow);
+ fitness = odp_flow_key_to_flow(odp_key.data, odp_key.size, &flow);
if (fitness == ODP_FIT_ERROR) {
ofpbuf_uninit(&odp_key);
return NULL;
}
- packet = ofpbuf_new(0);
+ packet = dp_packet_new(0);
flow_compose(packet, &flow);
ofpbuf_uninit(&odp_key);
}
static void
-netdev_dummy_queue_packet__(struct netdev_rxq_dummy *rx, struct ofpbuf *packet)
+netdev_dummy_queue_packet__(struct netdev_rxq_dummy *rx, struct dp_packet *packet)
{
- list_push_back(&rx->recv_queue, &packet->list_node);
+ struct pkt_list_node *pkt_node = xmalloc(sizeof *pkt_node);
+
+ pkt_node->pkt = packet;
+ list_push_back(&rx->recv_queue, &pkt_node->list_node);
rx->recv_queue_len++;
seq_change(rx->seq);
}
static void
-netdev_dummy_queue_packet(struct netdev_dummy *dummy, struct ofpbuf *packet)
+netdev_dummy_queue_packet(struct netdev_dummy *dummy, struct dp_packet *packet)
OVS_REQUIRES(dummy->mutex)
{
struct netdev_rxq_dummy *rx, *prev;
LIST_FOR_EACH (rx, node, &dummy->rxes) {
if (rx->recv_queue_len < NETDEV_DUMMY_MAX_QUEUE) {
if (prev) {
- netdev_dummy_queue_packet__(prev, ofpbuf_clone(packet));
+ netdev_dummy_queue_packet__(prev, dp_packet_clone(packet));
}
prev = rx;
}
if (prev) {
netdev_dummy_queue_packet__(prev, packet);
} else {
- ofpbuf_delete(packet);
+ dp_packet_delete(packet);
}
}
dummy_dev = netdev_dummy_cast(netdev);
for (i = 2; i < argc; i++) {
- struct ofpbuf *packet;
+ struct dp_packet *packet;
packet = eth_from_packet_or_flow(argv[i]);
if (!packet) {
ds_destroy(&s);
}
+static void
+netdev_dummy_ip4addr(struct unixctl_conn *conn, int argc OVS_UNUSED,
+ const char *argv[], void *aux OVS_UNUSED)
+{
+ struct netdev *netdev = netdev_from_name(argv[1]);
+
+ if (netdev && is_dummy_class(netdev->netdev_class)) {
+ struct in_addr ip;
+ uint16_t plen;
+
+ if (ovs_scan(argv[2], IP_SCAN_FMT"/%"SCNi16,
+ IP_SCAN_ARGS(&ip.s_addr), &plen)) {
+ struct in_addr mask;
+
+ mask.s_addr = be32_prefix_mask(plen);
+ netdev_dummy_set_in4(netdev, ip, mask);
+ unixctl_command_reply(conn, "OK");
+ } else {
+ unixctl_command_reply(conn, "Invalid parameters");
+ }
+
+ netdev_close(netdev);
+ } else {
+ unixctl_command_reply_error(conn, "Unknown Dummy Interface");
+ netdev_close(netdev);
+ return;
+ }
+
+}
+
+static void
+netdev_dummy_override(const char *type)
+{
+ if (!netdev_unregister_provider(type)) {
+ struct netdev_class *class;
+ int error;
+
+ class = xmemdup(&dummy_class, sizeof dummy_class);
+ class->type = xstrdup(type);
+ error = netdev_register_provider(class);
+ if (error) {
+ VLOG_ERR("%s: failed to register netdev provider (%s)",
+ type, ovs_strerror(error));
+ free(CONST_CAST(char *, class->type));
+ free(class);
+ }
+ }
+}
+
void
-netdev_dummy_register(bool override)
+netdev_dummy_register(enum dummy_level level)
{
unixctl_command_register("netdev-dummy/receive", "name packet|flow...",
2, INT_MAX, netdev_dummy_receive, NULL);
unixctl_command_register("netdev-dummy/conn-state",
"[netdev]", 0, 1,
netdev_dummy_conn_state, NULL);
+ unixctl_command_register("netdev-dummy/ip4addr",
+ "[netdev] ipaddr/mask-prefix-len", 2, 2,
+ netdev_dummy_ip4addr, NULL);
- if (override) {
+ if (level == DUMMY_OVERRIDE_ALL) {
struct sset types;
const char *type;
sset_init(&types);
netdev_enumerate_types(&types);
SSET_FOR_EACH (type, &types) {
- if (!strcmp(type, "patch")) {
- continue;
- }
- if (!netdev_unregister_provider(type)) {
- struct netdev_class *class;
- int error;
-
- class = xmemdup(&dummy_class, sizeof dummy_class);
- class->type = xstrdup(type);
- error = netdev_register_provider(class);
- if (error) {
- VLOG_ERR("%s: failed to register netdev provider (%s)",
- type, ovs_strerror(error));
- free(CONST_CAST(char *, class->type));
- free(class);
- }
+ if (strcmp(type, "patch")) {
+ netdev_dummy_override(type);
}
}
sset_destroy(&types);
+ } else if (level == DUMMY_OVERRIDE_SYSTEM) {
+ netdev_dummy_override("system");
}
netdev_register_provider(&dummy_class);