if (passive) {
printf("Passive OpenFlow connection methods:\n");
- printf(" ptcp:[PORT] "
- "listen to TCP PORT (default: %d)\n",
+ printf(" ptcp:[PORT][:IP] "
+ "listen to TCP PORT (default: %d) on IP\n",
OFP_TCP_PORT);
#ifdef HAVE_OPENSSL
- printf(" pssl:[PORT] "
- "listen for SSL on PORT (default: %d)\n",
+ printf(" pssl:[PORT][:IP] "
+ "listen for SSL on PORT (default: %d) on IP\n",
OFP_SSL_PORT);
#endif
printf(" punix:FILE "
if (retval != EAGAIN) {
vconn->state = VCS_DISCONNECTED;
- vconn->error = retval;
+ vconn->error = retval == EOF ? ECONNRESET : retval;
}
}
static int
do_recv(struct vconn *vconn, struct ofpbuf **msgp)
{
- int retval;
-
-again:
- retval = (vconn->class->recv)(vconn, msgp);
+ int retval = (vconn->class->recv)(vconn, msgp);
if (!retval) {
struct ofp_header *oh;
&& oh->type != OFPT_VENDOR)
{
if (vconn->version < 0) {
- if (oh->type == OFPT_PACKET_IN
- || oh->type == OFPT_FLOW_EXPIRED
- || oh->type == OFPT_PORT_STATUS) {
- /* The kernel datapath is stateless and doesn't really
- * support version negotiation, so it can end up sending
- * these asynchronous message before version negotiation
- * is complete. Just ignore them.
- *
- * (After we move OFPT_PORT_STATUS messages from the kernel
- * into secchan, we won't get those here, since secchan
- * does proper version negotiation.) */
- ofpbuf_delete(*msgp);
- goto again;
- }
VLOG_ERR_RL(&bad_ofmsg_rl,
"%s: received OpenFlow message type %"PRIu8" "
"before version negotiation complete",
return buffer;
}
+struct ofpbuf *
+make_packet_in(uint32_t buffer_id, uint16_t in_port, uint8_t reason,
+ const struct ofpbuf *payload, int max_send_len)
+{
+ struct ofp_packet_in *opi;
+ struct ofpbuf *buf;
+ int send_len;
+
+ send_len = MIN(max_send_len, payload->size);
+ buf = ofpbuf_new(sizeof *opi + send_len);
+ opi = put_openflow_xid(offsetof(struct ofp_packet_in, data),
+ OFPT_PACKET_IN, 0, buf);
+ opi->buffer_id = htonl(buffer_id);
+ opi->total_len = htons(payload->size);
+ opi->in_port = htons(in_port);
+ opi->reason = reason;
+ ofpbuf_put(buf, payload->data, send_len);
+ update_openflow_length(buf);
+
+ return buf;
+}
+
struct ofpbuf *
make_packet_out(const struct ofpbuf *packet, uint32_t buffer_id,
uint16_t in_port,
m->wildcards = htonl(wc);
}
+/* Initializes 'vconn' as a new vconn named 'name', implemented via 'class'.
+ * The initial connection status, supplied as 'connect_status', is interpreted
+ * as follows:
+ *
+ * - 0: 'vconn' is connected. Its 'send' and 'recv' functions may be
+ * called in the normal fashion.
+ *
+ * - EAGAIN: 'vconn' is trying to complete a connection. Its 'connect'
+ * function should be called to complete the connection.
+ *
+ * - Other positive errno values indicate that the connection failed with
+ * the specified error.
+ *
+ * After calling this function, vconn_close() must be used to destroy 'vconn',
+ * otherwise resources will be leaked.
+ *
+ * The caller retains ownership of 'name'. */
void
vconn_init(struct vconn *vconn, struct vconn_class *class, int connect_status,
- const char *name, bool reconnectable)
+ const char *name)
{
vconn->class = class;
vconn->state = (connect_status == EAGAIN ? VCS_CONNECTING
vconn->local_ip = 0;
vconn->local_port = 0;
vconn->name = xstrdup(name);
- vconn->reconnectable = reconnectable;
}
void