/* $OpenBSD: altq_cdnr.h,v 1.4 2002/12/16 17:27:20 henning Exp $ */ /* $KAME: altq_cdnr.h,v 1.6 2000/12/14 08:12:45 thorpej Exp $ */ /* * Copyright (C) 1999-2000 * Sony Computer Science Laboratories Inc. All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * * THIS SOFTWARE IS PROVIDED BY SONY CSL AND CONTRIBUTORS ``AS IS'' AND * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE * ARE DISCLAIMED. IN NO EVENT SHALL SONY CSL OR CONTRIBUTORS BE LIABLE * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF * SUCH DAMAGE. */ #ifndef _ALTQ_ALTQ_CDNR_H_ #define _ALTQ_ALTQ_CDNR_H_ #include <altq/altq.h> /* * traffic conditioner element types */ #define TCETYPE_NONE 0 #define TCETYPE_TOP 1 /* top level conditioner */ #define TCETYPE_ELEMENT 2 /* a simple tc element */ #define TCETYPE_TBMETER 3 /* token bucket meter */ #define TCETYPE_TRTCM 4 /* (two-rate) three color marker */ #define TCETYPE_TSWTCM 5 /* time sliding window 3-color maker */ /* * traffic conditioner action */ struct cdnr_block; struct tc_action { int tca_code; /* e.g., TCACODE_PASS */ /* tca_code dependent variable */ union { u_long un_value; /* template */ u_int8_t un_dscp; /* diffserv code point */ u_long un_handle; /* tc action handle */ struct cdnr_block *un_next; /* next tc element block */ } tca_un; }; #define tca_value tca_un.un_value #define tca_dscp tca_un.un_dscp #define tca_handle tca_un.un_handle #define tca_next tca_un.un_next #define TCACODE_NONE 0 /* action is not set */ #define TCACODE_PASS 1 /* pass this packet */ #define TCACODE_DROP 2 /* discard this packet */ #define TCACODE_RETURN 3 /* do not process this packet */ #define TCACODE_MARK 4 /* mark dscp */ #define TCACODE_HANDLE 5 /* take action specified by handle */ #define TCACODE_NEXT 6 /* take action in the next tc element */ #define TCACODE_MAX 6 #define CDNR_NULL_HANDLE 0 struct cdnr_interface { char cdnr_ifname[IFNAMSIZ]; /* interface name (e.g., fxp0) */ }; /* simple element operations */ struct cdnr_add_element { struct cdnr_interface iface; struct tc_action action; u_long cdnr_handle; /* return value */ }; struct cdnr_delete_element { struct cdnr_interface iface; u_long cdnr_handle; }; /* token-bucket meter operations */ struct cdnr_add_tbmeter { struct cdnr_interface iface; struct tb_profile profile; struct tc_action in_action; struct tc_action out_action; u_long cdnr_handle; /* return value */ }; struct cdnr_modify_tbmeter { struct cdnr_interface iface; u_long cdnr_handle; struct tb_profile profile; }; struct cdnr_tbmeter_stats { struct cdnr_interface iface; u_long cdnr_handle; struct pktcntr in_cnt; struct pktcntr out_cnt; }; /* two-rate three-color marker operations */ struct cdnr_add_trtcm { struct cdnr_interface iface; struct tb_profile cmtd_profile; /* profile for committed tb */ struct tb_profile peak_profile; /* profile for peak tb */ struct tc_action green_action; /* action for green packets */ struct tc_action yellow_action; /* action for yellow packets */ struct tc_action red_action; /* action for red packets */ int coloraware; /* color-aware/color-blind */ u_long cdnr_handle; /* return value */ }; struct cdnr_modify_trtcm { struct cdnr_interface iface; u_long cdnr_handle; struct tb_profile cmtd_profile; /* profile for committed tb */ struct tb_profile peak_profile; /* profile for peak tb */ int coloraware; /* color-aware/color-blind */ }; struct cdnr_tcm_stats { struct cdnr_interface iface; u_long cdnr_handle; struct pktcntr green_cnt; struct pktcntr yellow_cnt; struct pktcntr red_cnt; }; /* time sliding window three-color marker operations */ struct cdnr_add_tswtcm { struct cdnr_interface iface; u_int32_t cmtd_rate; /* committed rate (bits/sec) */ u_int32_t peak_rate; /* peak rate (bits/sec) */ u_int32_t avg_interval; /* averaging interval (msec) */ struct tc_action green_action; /* action for green packets */ struct tc_action yellow_action; /* action for yellow packets */ struct tc_action red_action; /* action for red packets */ u_long cdnr_handle; /* return value */ }; struct cdnr_modify_tswtcm { struct cdnr_interface iface; u_long cdnr_handle; u_int32_t cmtd_rate; /* committed rate (bits/sec) */ u_int32_t peak_rate; /* peak rate (bits/sec) */ u_int32_t avg_interval; /* averaging interval (msec) */ }; struct tce_stats { u_long tce_handle; /* tc element handle */ int tce_type; /* e.g., TCETYPE_ELEMENT */ struct pktcntr tce_cnts[3]; /* tcm returns 3 counters */ }; struct cdnr_get_stats { struct cdnr_interface iface; struct pktcntr cnts[TCACODE_MAX+1]; /* element stats */ int nskip; /* skip # of elements */ int nelements; /* # of element stats (WR) */ struct tce_stats *tce_stats; /* pointer to stats array */ }; #ifndef DSCP_EF /* diffserve code points */ #define DSCP_MASK 0xfc #define DSCP_CUMASK 0x03 #define DSCP_EF 0xb8 #define DSCP_AF11 0x28 #define DSCP_AF12 0x30 #define DSCP_AF13 0x38 #define DSCP_AF21 0x48 #define DSCP_AF22 0x50 #define DSCP_AF23 0x58 #define DSCP_AF31 0x68 #define DSCP_AF32 0x70 #define DSCP_AF33 0x78 #define DSCP_AF41 0x88 #define DSCP_AF42 0x90 #define DSCP_AF43 0x98 #define AF_CLASSMASK 0xe0 #define AF_DROPPRECMASK 0x18 #endif #ifdef _KERNEL /* * packet information passed to the input function of tc elements */ struct cdnr_pktinfo { int pkt_len; /* packet length */ u_int8_t pkt_dscp; /* diffserv code point */ }; /* * traffic conditioner control block common to all types of tc elements */ struct cdnr_block { LIST_ENTRY(cdnr_block) cb_next; int cb_len; /* size of this tc element */ int cb_type; /* cdnr block type */ int cb_ref; /* reference count of this element */ u_long cb_handle; /* handle of this tc element */ struct top_cdnr *cb_top; /* back pointer to top */ struct tc_action cb_action; /* top level action for this tcb */ struct tc_action *(*cb_input)(struct cdnr_block *, struct cdnr_pktinfo *); }; /* * top level traffic conditioner structure for an interface */ struct top_cdnr { struct cdnr_block tc_block; LIST_ENTRY(top_cdnr) tc_next; struct ifaltq *tc_ifq; LIST_HEAD(, cdnr_block) tc_elements; struct pktcntr tc_cnts[TCACODE_MAX+1]; }; /* token bucket element */ struct tbe { u_int64_t rate; u_int64_t depth; u_int64_t token; u_int64_t filluptime; u_int64_t last; }; /* token bucket meter structure */ struct tbmeter { struct cdnr_block cdnrblk; /* conditioner block */ struct tbe tb; /* token bucket */ struct tc_action in_action; /* actions for IN/OUT */ struct tc_action out_action; /* actions for IN/OUT */ struct pktcntr in_cnt; /* statistics for IN/OUT */ struct pktcntr out_cnt; /* statistics for IN/OUT */ }; /* two-rate three-color marker structure */ struct trtcm { struct cdnr_block cdnrblk; /* conditioner block */ struct tbe cmtd_tb; /* committed tb profile */ struct tbe peak_tb; /* peak tb profile */ struct tc_action green_action; struct tc_action yellow_action; struct tc_action red_action; int coloraware; u_int8_t green_dscp; u_int8_t yellow_dscp; u_int8_t red_dscp; struct pktcntr green_cnt; struct pktcntr yellow_cnt; struct pktcntr red_cnt; }; /* time sliding window three-color marker structure */ struct tswtcm { struct cdnr_block cdnrblk; /* conditioner block */ u_int32_t avg_rate; /* average rate (bytes/sec) */ u_int64_t t_front; /* timestamp of last update */ u_int64_t timewin; /* average interval */ u_int32_t cmtd_rate; /* committed target rate */ u_int32_t peak_rate; /* peak target rate */ struct tc_action green_action; struct tc_action yellow_action; struct tc_action red_action; u_int8_t green_dscp; u_int8_t yellow_dscp; u_int8_t red_dscp; struct pktcntr green_cnt; struct pktcntr yellow_cnt; struct pktcntr red_cnt; }; #endif /* _KERNEL */ #endif /* _ALTQ_ALTQ_CDNR_H_ */