2 * Copyright (c) 1997, 2002 Hellmuth Michaelis. All rights reserved.
4 * Redistribution and use in source and binary forms, with or without
5 * modification, are permitted provided that the following conditions
7 * 1. Redistributions of source code must retain the above copyright
8 * notice, this list of conditions and the following disclaimer.
9 * 2. Redistributions in binary form must reproduce the above copyright
10 * notice, this list of conditions and the following disclaimer in the
11 * documentation and/or other materials provided with the distribution.
13 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
14 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
15 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
16 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
17 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
18 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
19 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
20 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
21 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
22 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
26 /*---------------------------------------------------------------------------
28 * i4b - mbuf handling support routines
29 * --------------------------------------
33 * last edit-date: [Sat Mar 9 15:58:11 2002]
35 *---------------------------------------------------------------------------*/
40 /* layer 1 / layer 2 comunication: 3rd ph_data_req parameter */
41 #define MBUF_DONTFREE 0
44 #define IF_QEMPTY(ifq) ((ifq)->ifq_len == 0)
46 struct mbuf *i4b_Dgetmbuf( int );
47 void i4b_Dfreembuf( struct mbuf *m );
48 void i4b_Dcleanifq( struct ifqueue * );
50 struct mbuf *i4b_Bgetmbuf( int );
51 void i4b_Bfreembuf( struct mbuf *m );
52 void i4b_Bcleanifq( struct ifqueue * );
54 #endif /* _I4B_MBUF_H_ */