/*
- * Copyright (c) 2009, 2010, 2011 Nicira Networks.
+ * Copyright (c) 2009, 2010, 2011, 2012 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 "poll-loop.h"
#include "random.h"
#include "shash.h"
+#include "sset.h"
#include "timeval.h"
#include "util.h"
#include "vlog.h"
int port_no; /* Index into dp_netdev's 'ports'. */
struct list node; /* Element in dp_netdev's 'port_list'. */
struct netdev *netdev;
- bool internal; /* Internal port? */
+ char *type; /* Port type as requested by user. */
};
/* A flow in dp_netdev's 'flow_table'. */
long long int used; /* Last used time, in monotonic msecs. */
long long int packet_count; /* Number of packets matched. */
long long int byte_count; /* Number of bytes matched. */
- ovs_be16 tcp_ctl; /* Bitwise-OR of seen tcp_ctl values. */
+ uint8_t tcp_flags; /* Bitwise-OR of seen tcp_flags values. */
/* Actions. */
struct nlattr *actions;
struct dpif_netdev {
struct dpif dpif;
struct dp_netdev *dp;
- int listen_mask;
unsigned int dp_serial;
};
const struct nlattr *actions,
size_t actions_len);
-static struct dpif_class dpif_dummy_class;
-
static struct dpif_netdev *
dpif_netdev_cast(const struct dpif *dpif)
{
dpif = xmalloc(sizeof *dpif);
dpif_init(&dpif->dpif, dp->class, dp->name, netflow_id >> 8, netflow_id);
dpif->dp = dp;
- dpif->listen_mask = 0;
dpif->dp_serial = dp->serial;
return &dpif->dpif;
{
struct dp_netdev_port *port;
struct netdev *netdev;
- bool internal;
+ const char *open_type;
int mtu;
int error;
/* XXX reject devices already in some dp_netdev. */
- if (type[0] == '\0' || !strcmp(type, "system") || !strcmp(type, "dummy")) {
- internal = false;
- } else if (!strcmp(type, "internal")) {
- internal = true;
- } else {
- VLOG_WARN("%s: unsupported port type %s", devname, type);
- return EINVAL;
- }
/* Open and validate network device. */
- if (dp->class == &dpif_dummy_class) {
- type = "dummy";
- } else if (internal) {
- type = "tap";
- }
-
- error = netdev_open(devname, type, &netdev);
+ open_type = (strcmp(type, "internal") ? type
+ : dp->class != &dpif_netdev_class ? "dummy"
+ : "tap");
+ error = netdev_open(devname, open_type, &netdev);
if (error) {
return error;
}
port = xmalloc(sizeof *port);
port->port_no = port_no;
port->netdev = netdev;
- port->internal = internal;
+ port->type = xstrdup(type);
error = netdev_get_mtu(netdev, &mtu);
if (!error) {
}
static int
-dpif_netdev_port_add(struct dpif *dpif, struct netdev *netdev,
- uint16_t *port_nop)
+choose_port(struct dpif *dpif, struct netdev *netdev)
{
struct dp_netdev *dp = get_dp_netdev(dpif);
int port_no;
+ if (dpif->dpif_class != &dpif_netdev_class) {
+ /* If the port name contains a number, try to assign that port number.
+ * This can make writing unit tests easier because port numbers are
+ * predictable. */
+ const char *p;
+
+ for (p = netdev_get_name(netdev); *p != '\0'; p++) {
+ if (isdigit((unsigned char) *p)) {
+ port_no = strtol(p, NULL, 10);
+ if (port_no > 0 && port_no < MAX_PORTS
+ && !dp->ports[port_no]) {
+ return port_no;
+ }
+ break;
+ }
+ }
+ }
+
for (port_no = 0; port_no < MAX_PORTS; port_no++) {
if (!dp->ports[port_no]) {
- *port_nop = port_no;
- return do_add_port(dp, netdev_get_name(netdev),
- netdev_get_type(netdev), port_no);
+ return port_no;
}
}
+
+ return -1;
+}
+
+static int
+dpif_netdev_port_add(struct dpif *dpif, struct netdev *netdev,
+ uint16_t *port_nop)
+{
+ struct dp_netdev *dp = get_dp_netdev(dpif);
+ int port_no;
+
+ port_no = choose_port(dpif, netdev);
+ if (port_no >= 0) {
+ *port_nop = port_no;
+ return do_add_port(dp, netdev_get_name(netdev),
+ netdev_get_type(netdev), port_no);
+ }
return EFBIG;
}
name = xstrdup(netdev_get_name(port->netdev));
netdev_close(port->netdev);
+ free(port->type);
free(name);
free(port);
struct dpif_port *dpif_port)
{
dpif_port->name = xstrdup(netdev_get_name(port->netdev));
- dpif_port->type = xstrdup(port->internal ? "internal" : "system");
+ dpif_port->type = xstrdup(port->type);
dpif_port->port_no = port->port_no;
}
free(state->name);
state->name = xstrdup(netdev_get_name(port->netdev));
dpif_port->name = state->name;
- dpif_port->type = port->internal ? "internal" : "system";
+ dpif_port->type = port->type;
dpif_port->port_no = port->port_no;
state->port_no = port_no + 1;
return 0;
stats->n_packets = flow->packet_count;
stats->n_bytes = flow->byte_count;
stats->used = flow->used;
- stats->tcp_flags = TCP_FLAGS(flow->tcp_ctl);
+ stats->tcp_flags = flow->tcp_flags;
}
static int
flow->used = 0;
flow->packet_count = 0;
flow->byte_count = 0;
- flow->tcp_ctl = 0;
+ flow->tcp_flags = 0;
}
static int
-dpif_netdev_flow_put(struct dpif *dpif, enum dpif_flow_put_flags flags,
- const struct nlattr *nl_key, size_t nl_key_len,
- const struct nlattr *actions, size_t actions_len,
- struct dpif_flow_stats *stats)
+dpif_netdev_flow_put(struct dpif *dpif, const struct dpif_flow_put *put)
{
struct dp_netdev *dp = get_dp_netdev(dpif);
struct dp_netdev_flow *flow;
struct flow key;
int error;
- error = dpif_netdev_flow_from_nlattrs(nl_key, nl_key_len, &key);
+ error = dpif_netdev_flow_from_nlattrs(put->key, put->key_len, &key);
if (error) {
return error;
}
flow = dp_netdev_lookup_flow(dp, &key);
if (!flow) {
- if (flags & DPIF_FP_CREATE) {
+ if (put->flags & DPIF_FP_CREATE) {
if (hmap_count(&dp->flow_table) < MAX_FLOWS) {
- if (stats) {
- memset(stats, 0, sizeof *stats);
+ if (put->stats) {
+ memset(put->stats, 0, sizeof *put->stats);
}
- return add_flow(dpif, &key, actions, actions_len);
+ return add_flow(dpif, &key, put->actions, put->actions_len);
} else {
return EFBIG;
}
return ENOENT;
}
} else {
- if (flags & DPIF_FP_MODIFY) {
- int error = set_flow_actions(flow, actions, actions_len);
+ if (put->flags & DPIF_FP_MODIFY) {
+ int error = set_flow_actions(flow, put->actions, put->actions_len);
if (!error) {
- if (stats) {
- get_dpif_flow_stats(flow, stats);
+ if (put->stats) {
+ get_dpif_flow_stats(flow, put->stats);
}
- if (flags & DPIF_FP_ZERO_STATS) {
+ if (put->flags & DPIF_FP_ZERO_STATS) {
clear_stats(flow);
}
}
}
static int
-dpif_netdev_flow_del(struct dpif *dpif,
- const struct nlattr *nl_key, size_t nl_key_len,
- struct dpif_flow_stats *stats)
+dpif_netdev_flow_del(struct dpif *dpif, const struct dpif_flow_del *del)
{
struct dp_netdev *dp = get_dp_netdev(dpif);
struct dp_netdev_flow *flow;
struct flow key;
int error;
- error = dpif_netdev_flow_from_nlattrs(nl_key, nl_key_len, &key);
+ error = dpif_netdev_flow_from_nlattrs(del->key, del->key_len, &key);
if (error) {
return error;
}
flow = dp_netdev_lookup_flow(dp, &key);
if (flow) {
- if (stats) {
- get_dpif_flow_stats(flow, stats);
+ if (del->stats) {
+ get_dpif_flow_stats(flow, del->stats);
}
dp_netdev_free_flow(dp, flow);
return 0;
}
static int
-dpif_netdev_execute(struct dpif *dpif,
- const struct nlattr *key_attrs, size_t key_len,
- const struct nlattr *actions, size_t actions_len,
- const struct ofpbuf *packet)
+dpif_netdev_execute(struct dpif *dpif, const struct dpif_execute *execute)
{
struct dp_netdev *dp = get_dp_netdev(dpif);
struct ofpbuf copy;
struct flow key;
int error;
- if (packet->size < ETH_HEADER_LEN || packet->size > UINT16_MAX) {
+ if (execute->packet->size < ETH_HEADER_LEN ||
+ execute->packet->size > UINT16_MAX) {
return EINVAL;
}
/* Make a deep copy of 'packet', because we might modify its data. */
- ofpbuf_init(©, DP_NETDEV_HEADROOM + packet->size);
+ ofpbuf_init(©, DP_NETDEV_HEADROOM + execute->packet->size);
ofpbuf_reserve(©, DP_NETDEV_HEADROOM);
- ofpbuf_put(©, packet->data, packet->size);
+ ofpbuf_put(©, execute->packet->data, execute->packet->size);
- flow_extract(©, 0, -1, &key);
- error = dpif_netdev_flow_from_nlattrs(key_attrs, key_len, &key);
+ flow_extract(©, 0, 0, -1, &key);
+ error = dpif_netdev_flow_from_nlattrs(execute->key, execute->key_len,
+ &key);
if (!error) {
dp_netdev_execute_actions(dp, ©, &key,
- actions, actions_len);
+ execute->actions, execute->actions_len);
}
ofpbuf_uninit(©);
}
static int
-dpif_netdev_recv_get_mask(const struct dpif *dpif, int *listen_mask)
+dpif_netdev_recv_set(struct dpif *dpif OVS_UNUSED, bool enable OVS_UNUSED)
{
- struct dpif_netdev *dpif_netdev = dpif_netdev_cast(dpif);
- *listen_mask = dpif_netdev->listen_mask;
return 0;
}
static int
-dpif_netdev_recv_set_mask(struct dpif *dpif, int listen_mask)
+dpif_netdev_queue_to_priority(const struct dpif *dpif OVS_UNUSED,
+ uint32_t queue_id, uint32_t *priority)
{
- struct dpif_netdev *dpif_netdev = dpif_netdev_cast(dpif);
- dpif_netdev->listen_mask = listen_mask;
+ *priority = queue_id;
return 0;
}
static struct dp_netdev_queue *
find_nonempty_queue(struct dpif *dpif)
{
- struct dpif_netdev *dpif_netdev = dpif_netdev_cast(dpif);
struct dp_netdev *dp = get_dp_netdev(dpif);
- int mask = dpif_netdev->listen_mask;
int i;
for (i = 0; i < N_QUEUES; i++) {
struct dp_netdev_queue *q = &dp->queues[i];
- if (q->head != q->tail && mask & (1u << i)) {
+ if (q->head != q->tail) {
return q;
}
}
}
static int
-dpif_netdev_recv(struct dpif *dpif, struct dpif_upcall *upcall)
+dpif_netdev_recv(struct dpif *dpif, struct dpif_upcall *upcall,
+ struct ofpbuf *buf)
{
struct dp_netdev_queue *q = find_nonempty_queue(dpif);
if (q) {
*upcall = *u;
free(u);
+ ofpbuf_uninit(buf);
+ *buf = *u->packet;
+
return 0;
} else {
return EAGAIN;
flow->used = time_msec();
flow->packet_count++;
flow->byte_count += packet->size;
- if (key->dl_type == htons(ETH_TYPE_IP) && key->nw_proto == IPPROTO_TCP) {
- struct tcp_header *th = packet->l4;
- flow->tcp_ctl |= th->tcp_ctl;
- }
+ flow->tcp_flags |= packet_get_tcp_flags(packet, key);
}
static void
if (packet->size < ETH_HEADER_LEN) {
return;
}
- flow_extract(packet, 0, port->port_no, &key);
+ flow_extract(packet, 0, 0, port->port_no, &key);
flow = dp_netdev_lookup_flow(dp, &key);
if (flow) {
dp_netdev_flow_used(flow, &key, packet);
}
}
-static void
-dp_netdev_pop_vlan(struct ofpbuf *packet)
-{
- struct vlan_eth_header *veh = packet->l2;
- if (packet->size >= sizeof *veh
- && veh->veth_type == htons(ETH_TYPE_VLAN)) {
- struct eth_header tmp;
-
- memcpy(tmp.eth_dst, veh->veth_dst, ETH_ADDR_LEN);
- memcpy(tmp.eth_src, veh->veth_src, ETH_ADDR_LEN);
- tmp.eth_type = veh->veth_next_type;
-
- ofpbuf_pull(packet, VLAN_HEADER_LEN);
- packet->l2 = (char*)packet->l2 + VLAN_HEADER_LEN;
- memcpy(packet->data, &tmp, sizeof tmp);
- }
-}
-
static void
dp_netdev_set_dl(struct ofpbuf *packet, const struct ovs_key_ethernet *eth_key)
{
memcpy(eh->eth_dst, eth_key->eth_dst, sizeof eh->eth_dst);
}
-static void
-dp_netdev_set_ip_addr(struct ofpbuf *packet, ovs_be32 *addr, ovs_be32 new_addr)
-{
- struct ip_header *nh = packet->l3;
-
- if (nh->ip_proto == IPPROTO_TCP && packet->l7) {
- struct tcp_header *th = packet->l4;
- th->tcp_csum = recalc_csum32(th->tcp_csum, *addr, new_addr);
- } else if (nh->ip_proto == IPPROTO_UDP && packet->l7) {
- struct udp_header *uh = packet->l4;
- if (uh->udp_csum) {
- uh->udp_csum = recalc_csum32(uh->udp_csum, *addr, new_addr);
- if (!uh->udp_csum) {
- uh->udp_csum = htons(0xffff);
- }
- }
- }
- nh->ip_csum = recalc_csum32(nh->ip_csum, *addr, new_addr);
- *addr = new_addr;
-}
-
-static void
-dp_netdev_set_ip_tos(struct ip_header *nh, uint8_t new_tos)
-{
- uint8_t *field = &nh->ip_tos;
-
- /* Set the DSCP bits and preserve the ECN bits. */
- uint8_t new = new_tos | (nh->ip_tos & IP_ECN_MASK);
-
- nh->ip_csum = recalc_csum16(nh->ip_csum, htons((uint16_t)*field),
- htons((uint16_t) new));
- *field = new;
-}
-
-static void
-dp_netdev_set_ipv4(struct ofpbuf *packet, const struct ovs_key_ipv4 *ipv4_key)
-{
- struct ip_header *nh = packet->l3;
-
- if (nh->ip_src != ipv4_key->ipv4_src) {
- dp_netdev_set_ip_addr(packet, &nh->ip_src, ipv4_key->ipv4_src);
- }
- if (nh->ip_dst != ipv4_key->ipv4_dst) {
- dp_netdev_set_ip_addr(packet, &nh->ip_dst, ipv4_key->ipv4_dst);
- }
- if (nh->ip_tos != ipv4_key->ipv4_tos) {
- dp_netdev_set_ip_tos(nh, ipv4_key->ipv4_tos);
- }
-}
-
-static void
-dp_netdev_set_port(ovs_be16 *port, ovs_be16 new_port, ovs_be16 *csum)
-{
- *csum = recalc_csum16(*csum, *port, new_port);
- *port = new_port;
-}
-
-static void
-dp_netdev_set_tcp_port(struct ofpbuf *packet, const struct ovs_key_tcp *tcp_key)
-{
- struct tcp_header *th = packet->l4;
-
- if (th->tcp_src != tcp_key->tcp_src) {
- dp_netdev_set_port(&th->tcp_src, tcp_key->tcp_src, &th->tcp_csum);
- }
- if (th->tcp_dst != tcp_key->tcp_dst) {
- dp_netdev_set_port(&th->tcp_dst, tcp_key->tcp_dst, &th->tcp_csum);
- }
-}
-
-static void
-dp_netdev_set_udp_port(struct ofpbuf *packet, const struct ovs_key_udp *udp_key)
-{
- struct udp_header *uh = packet->l4;
-
- if (uh->udp_src != udp_key->udp_src) {
- dp_netdev_set_port(&uh->udp_src, udp_key->udp_src, &uh->udp_csum);
- }
- if (uh->udp_dst != udp_key->udp_dst) {
- dp_netdev_set_port(&uh->udp_dst, udp_key->udp_dst, &uh->udp_csum);
- }
-}
-
static void
dp_netdev_output_port(struct dp_netdev *dp, struct ofpbuf *packet,
uint16_t out_port)
execute_set_action(struct ofpbuf *packet, const struct nlattr *a)
{
enum ovs_key_attr type = nl_attr_type(a);
+ const struct ovs_key_ipv4 *ipv4_key;
+ const struct ovs_key_tcp *tcp_key;
+ const struct ovs_key_udp *udp_key;
+
switch (type) {
case OVS_KEY_ATTR_TUN_ID:
+ case OVS_KEY_ATTR_PRIORITY:
+ case OVS_KEY_ATTR_IPV6:
+ /* not implemented */
break;
case OVS_KEY_ATTR_ETHERNET:
break;
case OVS_KEY_ATTR_IPV4:
- dp_netdev_set_ipv4(packet,
- nl_attr_get_unspec(a, sizeof(struct ovs_key_ipv4)));
+ ipv4_key = nl_attr_get_unspec(a, sizeof(struct ovs_key_ipv4));
+ packet_set_ipv4(packet, ipv4_key->ipv4_src, ipv4_key->ipv4_dst,
+ ipv4_key->ipv4_tos, ipv4_key->ipv4_ttl);
break;
case OVS_KEY_ATTR_TCP:
- dp_netdev_set_tcp_port(packet,
- nl_attr_get_unspec(a, sizeof(struct ovs_key_tcp)));
+ tcp_key = nl_attr_get_unspec(a, sizeof(struct ovs_key_tcp));
+ packet_set_tcp_port(packet, tcp_key->tcp_src, tcp_key->tcp_dst);
break;
case OVS_KEY_ATTR_UDP:
- dp_netdev_set_udp_port(packet,
- nl_attr_get_unspec(a, sizeof(struct ovs_key_udp)));
+ udp_key = nl_attr_get_unspec(a, sizeof(struct ovs_key_udp));
+ packet_set_udp_port(packet, udp_key->udp_src, udp_key->udp_dst);
break;
case OVS_KEY_ATTR_UNSPEC:
+ case OVS_KEY_ATTR_ENCAP:
case OVS_KEY_ATTR_ETHERTYPE:
- case OVS_KEY_ATTR_IPV6:
case OVS_KEY_ATTR_IN_PORT:
- case OVS_KEY_ATTR_8021Q:
+ case OVS_KEY_ATTR_VLAN:
case OVS_KEY_ATTR_ICMP:
case OVS_KEY_ATTR_ICMPV6:
case OVS_KEY_ATTR_ARP:
unsigned int left;
NL_ATTR_FOR_EACH_UNSAFE (a, left, actions, actions_len) {
- const struct nlattr *nested;
- const struct ovs_key_8021q *q_key;
+ const struct ovs_action_push_vlan *vlan;
int type = nl_attr_type(a);
switch ((enum ovs_action_attr) type) {
dp_netdev_action_userspace(dp, packet, key, a);
break;
- case OVS_ACTION_ATTR_PUSH:
- nested = nl_attr_get(a);
- assert(nl_attr_type(nested) == OVS_KEY_ATTR_8021Q);
- q_key = nl_attr_get_unspec(nested, sizeof(*q_key));
- eth_push_vlan(packet, q_key->q_tci);
+ case OVS_ACTION_ATTR_PUSH_VLAN:
+ vlan = nl_attr_get(a);
+ eth_push_vlan(packet, vlan->vlan_tci);
break;
- case OVS_ACTION_ATTR_POP:
- assert(nl_attr_get_u16(a) == OVS_KEY_ATTR_8021Q);
- dp_netdev_pop_vlan(packet);
+ case OVS_ACTION_ATTR_POP_VLAN:
+ eth_pop_vlan(packet);
break;
case OVS_ACTION_ATTR_SET:
dp_netdev_sample(dp, packet, key, a);
break;
- case OVS_ACTION_ATTR_SET_PRIORITY:
- case OVS_ACTION_ATTR_POP_PRIORITY:
- /* not implemented */
- break;
-
case OVS_ACTION_ATTR_UNSPEC:
case __OVS_ACTION_ATTR_MAX:
NOT_REACHED();
dpif_netdev_flow_dump_done,
dpif_netdev_execute,
NULL, /* operate */
- dpif_netdev_recv_get_mask,
- dpif_netdev_recv_set_mask,
- NULL, /* queue_to_priority */
+ dpif_netdev_recv_set,
+ dpif_netdev_queue_to_priority,
dpif_netdev_recv,
dpif_netdev_recv_wait,
dpif_netdev_recv_purge,
};
+static void
+dpif_dummy_register__(const char *type)
+{
+ struct dpif_class *class;
+
+ class = xmalloc(sizeof *class);
+ *class = dpif_netdev_class;
+ class->type = xstrdup(type);
+ dp_register_provider(class);
+}
+
void
-dpif_dummy_register(void)
+dpif_dummy_register(bool override)
{
- if (!dpif_dummy_class.type) {
- dpif_dummy_class = dpif_netdev_class;
- dpif_dummy_class.type = "dummy";
- dp_register_provider(&dpif_dummy_class);
+ if (override) {
+ struct sset types;
+ const char *type;
+
+ sset_init(&types);
+ dp_enumerate_types(&types);
+ SSET_FOR_EACH (type, &types) {
+ if (!dp_unregister_provider(type)) {
+ dpif_dummy_register__(type);
+ }
+ }
+ sset_destroy(&types);
}
+
+ dpif_dummy_register__("dummy");
}
git://git.onelab.eu / sliver-openvswitch.git / blobdiff