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altq_blue.h revision 1.1 
      1 /*	$KAME: altq_blue.h,v 1.5 2000/12/14 08:12:45 thorpej Exp $	*/
      2 
      3 /*
      4  * Copyright (C) 1997-2000
      5  *	Sony Computer Science Laboratories Inc.  All rights reserved.
      6  *
      7  * Redistribution and use in source and binary forms, with or without
      8  * modification, are permitted provided that the following conditions
      9  * are met:
     10  * 1. Redistributions of source code must retain the above copyright
     11  *    notice, this list of conditions and the following disclaimer.
     12  * 2. Redistributions in binary form must reproduce the above copyright
     13  *    notice, this list of conditions and the following disclaimer in the
     14  *    documentation and/or other materials provided with the distribution.
     15  *
     16  * THIS SOFTWARE IS PROVIDED BY SONY CSL AND CONTRIBUTORS ``AS IS'' AND
     17  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
     18  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
     19  * ARE DISCLAIMED.  IN NO EVENT SHALL SONY CSL OR CONTRIBUTORS BE LIABLE
     20  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
     21  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
     22  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
     23  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
     24  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
     25  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
     26  * SUCH DAMAGE.
     27  */
     28 
     29 #ifndef _ALTQ_ALTQ_BLUE_H_
     30 #define	_ALTQ_ALTQ_BLUE_H_
     31 
     32 #include <altq/altq_classq.h>
     33 
     34 struct blue_interface {
     35 	char	blue_ifname[IFNAMSIZ];
     36 };
     37 
     38 struct blue_stats {
     39 	struct blue_interface iface;
     40 	int q_len;
     41 	int q_limit;
     42 	int q_pmark;
     43 	u_quad_t xmit_packets;
     44 	u_quad_t xmit_bytes;
     45 	u_quad_t drop_packets;
     46 	u_quad_t drop_bytes;
     47 	u_quad_t drop_forced;
     48 	u_quad_t drop_unforced;
     49 	u_quad_t marked_packets;
     50 };
     51 
     52 struct blue_conf {
     53 	struct blue_interface iface;
     54 	int blue_limit;
     55 	int blue_max_pmark;
     56 	int blue_hold_time;
     57 	int blue_pkttime;	/* average packet time in usec */
     58 	int blue_flags;		/* see below */
     59 };
     60 
     61 /* blue flags */
     62 #define	BLUEF_ECN4	0x01	/* use packet marking for IPv4 packets */
     63 #define	BLUEF_ECN6	0x02	/* use packet marking for IPv6 packets */
     64 #define	BLUEF_ECN	(BLUEF_ECN4 | BLUEF_ECN6)
     65 
     66 /*
     67  * IOCTLs for BLUE
     68  */
     69 #define	BLUE_IF_ATTACH		_IOW('Q', 1, struct blue_interface)
     70 #define	BLUE_IF_DETACH		_IOW('Q', 2, struct blue_interface)
     71 #define	BLUE_ENABLE		_IOW('Q', 3, struct blue_interface)
     72 #define	BLUE_DISABLE		_IOW('Q', 4, struct blue_interface)
     73 #define	BLUE_CONFIG		_IOWR('Q', 6, struct blue_conf)
     74 #define	BLUE_GETSTATS		_IOWR('Q', 12, struct blue_stats)
     75 
     76 #ifdef _KERNEL
     77 
     78 typedef struct blue {
     79 	int blue_pkttime; 	/* average packet time in micro sec
     80 				   used for idle calibration */
     81 	int blue_flags;		/* blue flags */
     82 
     83 	/* blue parameters */
     84 	int blue_pmark;		/* 0-1000 (mark probability*10000) */
     85 	int blue_max_pmark;	/* sets precision of marking probability */
     86 	int blue_hold_time;	/* hold time in usec */
     87 
     88 	int blue_idle;		/* queue was empty */
     89 	struct timeval blue_last;  /* timestamp when the queue becomes idle */
     90 
     91 	struct {
     92 		u_quad_t xmit_packets;
     93 		u_quad_t xmit_bytes;
     94 		u_quad_t drop_packets;
     95 		u_quad_t drop_bytes;
     96 		u_quad_t drop_forced;
     97 		u_quad_t drop_unforced;
     98 		u_quad_t marked_packets;
     99 	} blue_stats;
    100 } blue_t;
    101 
    102 typedef struct blue_queue {
    103 	struct blue_queue *rq_next;	/* next blue_state in the list */
    104 	struct ifaltq *rq_ifq;		/* backpointer to ifaltq */
    105 
    106 	class_queue_t *rq_q;
    107 
    108 	blue_t *rq_blue;
    109 } blue_queue_t;
    110 
    111 extern int blue_init __P((blue_t *, int, int, int, int));
    112 extern int blue_addq __P((blue_t *, class_queue_t *, struct mbuf *,
    113 			 struct altq_pktattr *));
    114 extern struct mbuf *blue_getq __P((blue_t *, class_queue_t *));
    115 
    116 #endif /* _KERNEL */
    117 
    118 #endif /* _ALTQ_ALTQ_BLUE_H_ */
    119