772e66a6fc
discontinued by its initial authors. In FreeBSD the code was already slightly edited during the pf(4) SMP project. It is about to be edited more in the projects/ifnet. Moving out of contrib also allows to remove several hacks to the make glue. Reviewed by: net@
337 lines
10 KiB
C
337 lines
10 KiB
C
/*-
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* Copyright (C) 1999-2002
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* Sony Computer Science Laboratories Inc. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY SONY CSL AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL SONY CSL OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* $KAME: altq_cdnr.h,v 1.9 2003/07/10 12:07:48 kjc Exp $
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* $FreeBSD$
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*/
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#ifndef _ALTQ_ALTQ_CDNR_H_
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#define _ALTQ_ALTQ_CDNR_H_
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#include <net/altq/altq.h>
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/*
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* traffic conditioner element types
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*/
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#define TCETYPE_NONE 0
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#define TCETYPE_TOP 1 /* top level conditioner */
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#define TCETYPE_ELEMENT 2 /* a simple tc element */
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#define TCETYPE_TBMETER 3 /* token bucket meter */
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#define TCETYPE_TRTCM 4 /* (two-rate) three color marker */
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#define TCETYPE_TSWTCM 5 /* time sliding window 3-color maker */
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/*
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* traffic conditioner action
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*/
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struct cdnr_block;
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struct tc_action {
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int tca_code; /* e.g., TCACODE_PASS */
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/* tca_code dependent variable */
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union {
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u_long un_value; /* template */
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u_int8_t un_dscp; /* diffserv code point */
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u_long un_handle; /* tc action handle */
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struct cdnr_block *un_next; /* next tc element block */
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} tca_un;
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};
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#define tca_value tca_un.un_value
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#define tca_dscp tca_un.un_dscp
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#define tca_handle tca_un.un_handle
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#define tca_next tca_un.un_next
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#define TCACODE_NONE 0 /* action is not set */
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#define TCACODE_PASS 1 /* pass this packet */
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#define TCACODE_DROP 2 /* discard this packet */
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#define TCACODE_RETURN 3 /* do not process this packet */
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#define TCACODE_MARK 4 /* mark dscp */
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#define TCACODE_HANDLE 5 /* take action specified by handle */
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#define TCACODE_NEXT 6 /* take action in the next tc element */
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#define TCACODE_MAX 6
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#define CDNR_NULL_HANDLE 0
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struct cdnr_interface {
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char cdnr_ifname[IFNAMSIZ]; /* interface name (e.g., fxp0) */
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};
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/* simple element operations */
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struct cdnr_add_element {
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struct cdnr_interface iface;
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struct tc_action action;
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u_long cdnr_handle; /* return value */
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};
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struct cdnr_delete_element {
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struct cdnr_interface iface;
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u_long cdnr_handle;
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};
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/* token-bucket meter operations */
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struct cdnr_add_tbmeter {
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struct cdnr_interface iface;
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struct tb_profile profile;
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struct tc_action in_action;
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struct tc_action out_action;
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u_long cdnr_handle; /* return value */
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};
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struct cdnr_modify_tbmeter {
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struct cdnr_interface iface;
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u_long cdnr_handle;
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struct tb_profile profile;
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};
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struct cdnr_tbmeter_stats {
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struct cdnr_interface iface;
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u_long cdnr_handle;
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struct pktcntr in_cnt;
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struct pktcntr out_cnt;
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};
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/* two-rate three-color marker operations */
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struct cdnr_add_trtcm {
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struct cdnr_interface iface;
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struct tb_profile cmtd_profile; /* profile for committed tb */
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struct tb_profile peak_profile; /* profile for peak tb */
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struct tc_action green_action; /* action for green packets */
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struct tc_action yellow_action; /* action for yellow packets */
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struct tc_action red_action; /* action for red packets */
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int coloraware; /* color-aware/color-blind */
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u_long cdnr_handle; /* return value */
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};
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struct cdnr_modify_trtcm {
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struct cdnr_interface iface;
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u_long cdnr_handle;
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struct tb_profile cmtd_profile; /* profile for committed tb */
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struct tb_profile peak_profile; /* profile for peak tb */
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int coloraware; /* color-aware/color-blind */
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};
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struct cdnr_tcm_stats {
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struct cdnr_interface iface;
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u_long cdnr_handle;
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struct pktcntr green_cnt;
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struct pktcntr yellow_cnt;
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struct pktcntr red_cnt;
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};
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/* time sliding window three-color marker operations */
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struct cdnr_add_tswtcm {
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struct cdnr_interface iface;
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u_int32_t cmtd_rate; /* committed rate (bits/sec) */
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u_int32_t peak_rate; /* peak rate (bits/sec) */
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u_int32_t avg_interval; /* averaging interval (msec) */
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struct tc_action green_action; /* action for green packets */
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struct tc_action yellow_action; /* action for yellow packets */
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struct tc_action red_action; /* action for red packets */
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u_long cdnr_handle; /* return value */
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};
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struct cdnr_modify_tswtcm {
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struct cdnr_interface iface;
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u_long cdnr_handle;
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u_int32_t cmtd_rate; /* committed rate (bits/sec) */
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u_int32_t peak_rate; /* peak rate (bits/sec) */
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u_int32_t avg_interval; /* averaging interval (msec) */
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};
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struct cdnr_add_filter {
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struct cdnr_interface iface;
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u_long cdnr_handle;
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#ifdef ALTQ3_CLFIER_COMPAT
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struct flow_filter filter;
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#endif
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u_long filter_handle; /* return value */
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};
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struct cdnr_delete_filter {
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struct cdnr_interface iface;
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u_long filter_handle;
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};
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struct tce_stats {
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u_long tce_handle; /* tc element handle */
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int tce_type; /* e.g., TCETYPE_ELEMENT */
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struct pktcntr tce_cnts[3]; /* tcm returns 3 counters */
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};
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struct cdnr_get_stats {
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struct cdnr_interface iface;
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struct pktcntr cnts[TCACODE_MAX+1];
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/* element stats */
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int nskip; /* skip # of elements */
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int nelements; /* # of element stats (WR) */
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struct tce_stats *tce_stats; /* pointer to stats array */
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};
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#define CDNR_IF_ATTACH _IOW('Q', 1, struct cdnr_interface)
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#define CDNR_IF_DETACH _IOW('Q', 2, struct cdnr_interface)
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#define CDNR_ENABLE _IOW('Q', 3, struct cdnr_interface)
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#define CDNR_DISABLE _IOW('Q', 4, struct cdnr_interface)
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#define CDNR_ADD_FILTER _IOWR('Q', 10, struct cdnr_add_filter)
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#define CDNR_DEL_FILTER _IOW('Q', 11, struct cdnr_delete_filter)
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#define CDNR_GETSTATS _IOWR('Q', 12, struct cdnr_get_stats)
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#define CDNR_ADD_ELEM _IOWR('Q', 30, struct cdnr_add_element)
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#define CDNR_DEL_ELEM _IOW('Q', 31, struct cdnr_delete_element)
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#define CDNR_ADD_TBM _IOWR('Q', 32, struct cdnr_add_tbmeter)
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#define CDNR_MOD_TBM _IOW('Q', 33, struct cdnr_modify_tbmeter)
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#define CDNR_TBM_STATS _IOWR('Q', 34, struct cdnr_tbmeter_stats)
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#define CDNR_ADD_TCM _IOWR('Q', 35, struct cdnr_add_trtcm)
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#define CDNR_MOD_TCM _IOWR('Q', 36, struct cdnr_modify_trtcm)
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#define CDNR_TCM_STATS _IOWR('Q', 37, struct cdnr_tcm_stats)
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#define CDNR_ADD_TSW _IOWR('Q', 38, struct cdnr_add_tswtcm)
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#define CDNR_MOD_TSW _IOWR('Q', 39, struct cdnr_modify_tswtcm)
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#ifndef DSCP_EF
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/* diffserve code points */
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#define DSCP_MASK 0xfc
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#define DSCP_CUMASK 0x03
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#define DSCP_EF 0xb8
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#define DSCP_AF11 0x28
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#define DSCP_AF12 0x30
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#define DSCP_AF13 0x38
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#define DSCP_AF21 0x48
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#define DSCP_AF22 0x50
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#define DSCP_AF23 0x58
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#define DSCP_AF31 0x68
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#define DSCP_AF32 0x70
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#define DSCP_AF33 0x78
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#define DSCP_AF41 0x88
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#define DSCP_AF42 0x90
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#define DSCP_AF43 0x98
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#define AF_CLASSMASK 0xe0
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#define AF_DROPPRECMASK 0x18
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#endif
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#ifdef _KERNEL
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/*
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* packet information passed to the input function of tc elements
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*/
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struct cdnr_pktinfo {
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int pkt_len; /* packet length */
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u_int8_t pkt_dscp; /* diffserv code point */
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};
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/*
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* traffic conditioner control block common to all types of tc elements
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*/
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struct cdnr_block {
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LIST_ENTRY(cdnr_block) cb_next;
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int cb_len; /* size of this tc element */
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int cb_type; /* cdnr block type */
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int cb_ref; /* reference count of this element */
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u_long cb_handle; /* handle of this tc element */
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struct top_cdnr *cb_top; /* back pointer to top */
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struct tc_action cb_action; /* top level action for this tcb */
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struct tc_action *(*cb_input)(struct cdnr_block *,
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struct cdnr_pktinfo *);
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};
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/*
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* top level traffic conditioner structure for an interface
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*/
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struct top_cdnr {
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struct cdnr_block tc_block;
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LIST_ENTRY(top_cdnr) tc_next;
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struct ifaltq *tc_ifq;
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LIST_HEAD(, cdnr_block) tc_elements;
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#ifdef ALTQ3_CLFIER_COMPAT
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struct acc_classifier tc_classifier;
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#endif
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struct pktcntr tc_cnts[TCACODE_MAX+1];
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};
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/* token bucket element */
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struct tbe {
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u_int64_t rate;
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u_int64_t depth;
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u_int64_t token;
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u_int64_t filluptime;
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u_int64_t last;
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};
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/* token bucket meter structure */
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struct tbmeter {
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struct cdnr_block cdnrblk; /* conditioner block */
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struct tbe tb; /* token bucket */
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struct tc_action in_action; /* actions for IN/OUT */
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struct tc_action out_action; /* actions for IN/OUT */
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struct pktcntr in_cnt; /* statistics for IN/OUT */
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struct pktcntr out_cnt; /* statistics for IN/OUT */
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};
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/* two-rate three-color marker structure */
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struct trtcm {
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struct cdnr_block cdnrblk; /* conditioner block */
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struct tbe cmtd_tb; /* committed tb profile */
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struct tbe peak_tb; /* peak tb profile */
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struct tc_action green_action;
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struct tc_action yellow_action;
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struct tc_action red_action;
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int coloraware;
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u_int8_t green_dscp;
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u_int8_t yellow_dscp;
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u_int8_t red_dscp;
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struct pktcntr green_cnt;
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struct pktcntr yellow_cnt;
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struct pktcntr red_cnt;
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};
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/* time sliding window three-color marker structure */
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struct tswtcm {
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struct cdnr_block cdnrblk; /* conditioner block */
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u_int32_t avg_rate; /* average rate (bytes/sec) */
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u_int64_t t_front; /* timestamp of last update */
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u_int64_t timewin; /* average interval */
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u_int32_t cmtd_rate; /* committed target rate */
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u_int32_t peak_rate; /* peak target rate */
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struct tc_action green_action;
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struct tc_action yellow_action;
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struct tc_action red_action;
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u_int8_t green_dscp;
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u_int8_t yellow_dscp;
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u_int8_t red_dscp;
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struct pktcntr green_cnt;
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struct pktcntr yellow_cnt;
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struct pktcntr red_cnt;
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};
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#endif /* _KERNEL */
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#endif /* _ALTQ_ALTQ_CDNR_H_ */
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