#include "ofproto/ofproto-dpif-xlate.h"
+#include <errno.h>
+
#include "bfd.h"
#include "bitmap.h"
#include "bond.h"
static struct xbridge *xbridge_lookup(const struct ofproto_dpif *);
static struct xbundle *xbundle_lookup(const struct ofbundle *);
-static struct xport *xport_lookup(struct ofport_dpif *);
+static struct xport *xport_lookup(const struct ofport_dpif *);
static struct xport *get_ofp_port(const struct xbridge *, ofp_port_t ofp_port);
static struct skb_priority_to_dscp *get_skb_priority(const struct xport *,
uint32_t skb_priority);
if (xport->peer) {
xport->peer->peer = NULL;
}
- xport->peer = peer ? xport_lookup(peer) : NULL;
+ xport->peer = xport_lookup(peer);
if (xport->peer) {
xport->peer->peer = xport;
}
if (xport->xbundle) {
list_remove(&xport->bundle_node);
}
- xport->xbundle = ofbundle ? xbundle_lookup(ofbundle) : NULL;
+ xport->xbundle = xbundle_lookup(ofbundle);
if (xport->xbundle) {
list_insert(&xport->xbundle->xports, &xport->bundle_node);
}
free(xport);
}
+/* Given a datpath, packet, and flow metadata ('backer', 'packet', and 'key'
+ * respectively), populates 'flow' with the result of odp_flow_key_to_flow().
+ * Optionally, if nonnull, populates 'fitnessp' with the fitness of 'flow' as
+ * returned by odp_flow_key_to_flow(). Also, optionally populates 'ofproto'
+ * with the ofproto_dpif, and 'odp_in_port' with the datapath in_port, that
+ * 'packet' ingressed.
+ *
+ * If 'ofproto' is nonnull, requires 'flow''s in_port to exist. Otherwise sets
+ * 'flow''s in_port to OFPP_NONE.
+ *
+ * This function does post-processing on data returned from
+ * odp_flow_key_to_flow() to help make VLAN splinters transparent to the rest
+ * of the upcall processing logic. In particular, if the extracted in_port is
+ * a VLAN splinter port, it replaces flow->in_port by the "real" port, sets
+ * flow->vlan_tci correctly for the VLAN of the VLAN splinter port, and pushes
+ * a VLAN header onto 'packet' (if it is nonnull).
+ *
+ * Similarly, this function also includes some logic to help with tunnels. It
+ * may modify 'flow' as necessary to make the tunneling implementation
+ * transparent to the upcall processing logic.
+ *
+ * Returns 0 if successful, ENODEV if the parsed flow has no associated ofport,
+ * or some other positive errno if there are other problems. */
+int
+xlate_receive(const struct dpif_backer *backer, struct ofpbuf *packet,
+ const struct nlattr *key, size_t key_len,
+ struct flow *flow, enum odp_key_fitness *fitnessp,
+ struct ofproto_dpif **ofproto, odp_port_t *odp_in_port)
+{
+ enum odp_key_fitness fitness;
+ const struct xport *xport;
+ int error = ENODEV;
+
+ fitness = odp_flow_key_to_flow(key, key_len, flow);
+ if (fitness == ODP_FIT_ERROR) {
+ error = EINVAL;
+ goto exit;
+ }
+
+ if (odp_in_port) {
+ *odp_in_port = flow->in_port.odp_port;
+ }
+
+ xport = xport_lookup(tnl_port_should_receive(flow)
+ ? tnl_port_receive(flow)
+ : odp_port_to_ofport(backer, flow->in_port.odp_port));
+
+ flow->in_port.ofp_port = xport ? xport->ofp_port : OFPP_NONE;
+ if (!xport) {
+ goto exit;
+ }
+
+ if (vsp_adjust_flow(xport->xbridge->ofproto, flow)) {
+ if (packet) {
+ /* Make the packet resemble the flow, so that it gets sent to
+ * an OpenFlow controller properly, so that it looks correct
+ * for sFlow, and so that flow_extract() will get the correct
+ * vlan_tci if it is called on 'packet'.
+ *
+ * The allocated space inside 'packet' probably also contains
+ * 'key', that is, both 'packet' and 'key' are probably part of
+ * a struct dpif_upcall (see the large comment on that
+ * structure definition), so pushing data on 'packet' is in
+ * general not a good idea since it could overwrite 'key' or
+ * free it as a side effect. However, it's OK in this special
+ * case because we know that 'packet' is inside a Netlink
+ * attribute: pushing 4 bytes will just overwrite the 4-byte
+ * "struct nlattr", which is fine since we don't need that
+ * header anymore. */
+ eth_push_vlan(packet, flow->vlan_tci);
+ }
+ /* We can't reproduce 'key' from 'flow'. */
+ fitness = fitness == ODP_FIT_PERFECT ? ODP_FIT_TOO_MUCH : fitness;
+ }
+ error = 0;
+
+ if (ofproto) {
+ *ofproto = xport->xbridge->ofproto;
+ }
+
+exit:
+ if (fitnessp) {
+ *fitnessp = fitness;
+ }
+ return error;
+}
+
static struct xbridge *
xbridge_lookup(const struct ofproto_dpif *ofproto)
{
struct xbridge *xbridge;
+ if (!ofproto) {
+ return NULL;
+ }
+
HMAP_FOR_EACH_IN_BUCKET (xbridge, hmap_node, hash_pointer(ofproto, 0),
&xbridges) {
if (xbridge->ofproto == ofproto) {
{
struct xbundle *xbundle;
+ if (!ofbundle) {
+ return NULL;
+ }
+
HMAP_FOR_EACH_IN_BUCKET (xbundle, hmap_node, hash_pointer(ofbundle, 0),
&xbundles) {
if (xbundle->ofbundle == ofbundle) {
}
static struct xport *
-xport_lookup(struct ofport_dpif *ofport)
+xport_lookup(const struct ofport_dpif *ofport)
{
struct xport *xport;
+ if (!ofport) {
+ return NULL;
+ }
+
HMAP_FOR_EACH_IN_BUCKET (xport, hmap_node, hash_pointer(ofport, 0),
&xports) {
if (xport->ofport == ofport) {
ofport = bond_choose_output_slave(out_xbundle->bond, &ctx->xin->flow,
&ctx->xout->wc, vid);
- xport = ofport ? xport_lookup(ofport) : NULL;
+ xport = xport_lookup(ofport);
if (!xport) {
/* No slaves enabled, so drop packet. */
}
ctx->xin->flow = old_flow;
- ctx->xbridge = xport->xbundle->xbridge;
+ ctx->xbridge = xport->xbridge;
if (ctx->xin->resubmit_stats) {
netdev_vport_inc_tx(xport->netdev, ctx->xin->resubmit_stats);
enum ofp_packet_in_reason reason,
uint16_t controller_id)
{
- struct ofputil_packet_in pin;
+ struct ofputil_packet_in *pin;
struct ofpbuf *packet;
struct flow key;
odp_execute_actions(NULL, packet, &key, ctx->xout->odp_actions.data,
ctx->xout->odp_actions.size, NULL, NULL);
- pin.packet = packet->data;
- pin.packet_len = packet->size;
- pin.reason = reason;
- pin.controller_id = controller_id;
- pin.table_id = ctx->table_id;
- pin.cookie = ctx->rule ? ctx->rule->up.flow_cookie : 0;
+ pin = xmalloc(sizeof *pin);
+ pin->packet_len = packet->size;
+ pin->packet = ofpbuf_steal_data(packet);
+ pin->reason = reason;
+ pin->controller_id = controller_id;
+ pin->table_id = ctx->table_id;
+ pin->cookie = ctx->rule ? ctx->rule->up.flow_cookie : 0;
- pin.send_len = len;
- flow_get_metadata(&ctx->xin->flow, &pin.fmd);
+ pin->send_len = len;
+ flow_get_metadata(&ctx->xin->flow, &pin->fmd);
- ofproto_dpif_send_packet_in(ctx->xbridge->ofproto, &pin);
+ ofproto_dpif_send_packet_in(ctx->xbridge->ofproto, pin);
ofpbuf_delete(packet);
}
list_insert(&rule->up.ofproto->expirable, &rule->up.expirable);
}
- reduce_timeout(oft->fin_idle_timeout, &rule->up.idle_timeout);
- reduce_timeout(oft->fin_hard_timeout, &rule->up.hard_timeout);
+ ovs_mutex_lock(&rule->up.timeout_mutex);
+ reduce_timeout(oft->fin_idle_timeout, &rule->up.idle_timeout);
+ reduce_timeout(oft->fin_hard_timeout, &rule->up.hard_timeout);
+ ovs_mutex_unlock(&rule->up.timeout_mutex);
}
}
git://git.onelab.eu / sliver-openvswitch.git / blobdiff