The Design and Implementation of the FreeBSD Operating System, Second Edition
Now available: The Design and Implementation of the FreeBSD Operating System (Second Edition)

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FreeBSD/Linux Kernel Cross Reference
sys/altq/altq_var.h

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    1 /*      $NetBSD: altq_var.h,v 1.10 2006/10/15 13:17:13 peter Exp $      */
    2 /*      $KAME: altq_var.h,v 1.18 2005/04/13 03:44:25 suz Exp $  */
    3 
    4 /*
    5  * Copyright (C) 1998-2003
    6  *      Sony Computer Science Laboratories Inc.  All rights reserved.
    7  *
    8  * Redistribution and use in source and binary forms, with or without
    9  * modification, are permitted provided that the following conditions
   10  * are met:
   11  * 1. Redistributions of source code must retain the above copyright
   12  *    notice, this list of conditions and the following disclaimer.
   13  * 2. Redistributions in binary form must reproduce the above copyright
   14  *    notice, this list of conditions and the following disclaimer in the
   15  *    documentation and/or other materials provided with the distribution.
   16  *
   17  * THIS SOFTWARE IS PROVIDED BY SONY CSL AND CONTRIBUTORS ``AS IS'' AND
   18  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
   19  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
   20  * ARE DISCLAIMED.  IN NO EVENT SHALL SONY CSL OR CONTRIBUTORS BE LIABLE
   21  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
   22  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
   23  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
   24  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
   25  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
   26  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
   27  * SUCH DAMAGE.
   28  */
   29 #ifndef _ALTQ_ALTQ_VAR_H_
   30 #define _ALTQ_ALTQ_VAR_H_
   31 
   32 #ifdef _KERNEL
   33 
   34 #include <sys/param.h>
   35 #include <sys/kernel.h>
   36 #include <sys/queue.h>
   37 
   38 #ifdef ALTQ3_CLFIER_COMPAT
   39 /*
   40  * filter structure for altq common classifier
   41  */
   42 struct acc_filter {
   43         LIST_ENTRY(acc_filter)  f_chain;
   44         void                    *f_class;       /* pointer to the class */
   45         u_long                  f_handle;       /* filter id */
   46         u_int32_t               f_fbmask;       /* filter bitmask */
   47         struct flow_filter      f_filter;       /* filter value */
   48 };
   49 
   50 /*
   51  * XXX ACC_FILTER_TABLESIZE can't be larger than 2048 unless we fix
   52  * the handle assignment.
   53  */
   54 #define ACC_FILTER_TABLESIZE    (256+1)
   55 #define ACC_FILTER_MASK         (ACC_FILTER_TABLESIZE - 2)
   56 #define ACC_WILDCARD_INDEX      (ACC_FILTER_TABLESIZE - 1)
   57 #ifdef __GNUC__
   58 #define ACC_GET_HASH_INDEX(addr) \
   59         ({int x = (addr) + ((addr) >> 16); (x + (x >> 8)) & ACC_FILTER_MASK;})
   60 #else
   61 #define ACC_GET_HASH_INDEX(addr) \
   62         (((addr) + ((addr) >> 8) + ((addr) >> 16) + ((addr) >> 24)) \
   63         & ACC_FILTER_MASK)
   64 #endif
   65 #define ACC_GET_HINDEX(handle) ((handle) >> 20)
   66 
   67 #if (__FreeBSD_version > 500000)
   68 #define ACC_LOCK_INIT(ac)       mtx_init(&(ac)->acc_mtx, "classifier", MTX_DEF)
   69 #define ACC_LOCK_DESTROY(ac)    mtx_destroy(&(ac)->acc_mtx)
   70 #define ACC_LOCK(ac)            mtx_lock(&(ac)->acc_mtx)
   71 #define ACC_UNLOCK(ac)          mtx_unlock(&(ac)->acc_mtx)
   72 #else
   73 #define ACC_LOCK_INIT(ac)
   74 #define ACC_LOCK_DESTROY(ac)
   75 #define ACC_LOCK(ac)
   76 #define ACC_UNLOCK(ac)
   77 #endif
   78 
   79 struct acc_classifier {
   80         u_int32_t                       acc_fbmask;
   81         LIST_HEAD(filt, acc_filter)     acc_filters[ACC_FILTER_TABLESIZE];
   82 
   83 #if (__FreeBSD_version > 500000)
   84         struct  mtx acc_mtx;
   85 #endif
   86 };
   87 
   88 /*
   89  * flowinfo mask bits used by classifier
   90  */
   91 /* for ipv4 */
   92 #define FIMB4_PROTO     0x0001
   93 #define FIMB4_TOS       0x0002
   94 #define FIMB4_DADDR     0x0004
   95 #define FIMB4_SADDR     0x0008
   96 #define FIMB4_DPORT     0x0010
   97 #define FIMB4_SPORT     0x0020
   98 #define FIMB4_GPI       0x0040
   99 #define FIMB4_ALL       0x007f
  100 /* for ipv6 */
  101 #define FIMB6_PROTO     0x0100
  102 #define FIMB6_TCLASS    0x0200
  103 #define FIMB6_DADDR     0x0400
  104 #define FIMB6_SADDR     0x0800
  105 #define FIMB6_DPORT     0x1000
  106 #define FIMB6_SPORT     0x2000
  107 #define FIMB6_GPI       0x4000
  108 #define FIMB6_FLABEL    0x8000
  109 #define FIMB6_ALL       0xff00
  110 
  111 #define FIMB_ALL        (FIMB4_ALL|FIMB6_ALL)
  112 
  113 #define FIMB4_PORTS     (FIMB4_DPORT|FIMB4_SPORT|FIMB4_GPI)
  114 #define FIMB6_PORTS     (FIMB6_DPORT|FIMB6_SPORT|FIMB6_GPI)
  115 #endif /* ALTQ3_CLFIER_COMPAT */
  116 
  117 /*
  118  * machine dependent clock
  119  * a 64bit high resolution time counter.
  120  */
  121 extern int machclk_usepcc;
  122 extern u_int32_t machclk_freq;
  123 extern u_int32_t machclk_per_tick;
  124 extern void init_machclk(void);
  125 extern u_int64_t read_machclk(void);
  126 
  127 /*
  128  * debug support
  129  */
  130 #ifdef ALTQ_DEBUG
  131 #ifdef __STDC__
  132 #define ASSERT(e)       ((e) ? (void)0 : altq_assert(__FILE__, __LINE__, #e))
  133 #else   /* PCC */
  134 #define ASSERT(e)       ((e) ? (void)0 : altq_assert(__FILE__, __LINE__, "e"))
  135 #endif
  136 #else
  137 #define ASSERT(e)       ((void)0)
  138 #endif
  139 
  140 /*
  141  * misc stuff for compatibility
  142  */
  143 /* ioctl cmd type */
  144 typedef u_long ioctlcmd_t;
  145 
  146 /*
  147  * queue macros:
  148  * the interface of TAILQ_LAST macro changed after the introduction
  149  * of softupdate. redefine it here to make it work with pre-2.2.7.
  150  */
  151 #undef TAILQ_LAST
  152 #define TAILQ_LAST(head, headname) \
  153         (*(((struct headname *)((head)->tqh_last))->tqh_last))
  154 
  155 #ifndef TAILQ_EMPTY
  156 #define TAILQ_EMPTY(head) ((head)->tqh_first == NULL)
  157 #endif
  158 #ifndef TAILQ_FOREACH
  159 #define TAILQ_FOREACH(var, head, field)                                 \
  160         for (var = TAILQ_FIRST(head); var; var = TAILQ_NEXT(var, field))
  161 #endif
  162 
  163 /* macro for timeout/untimeout */
  164 #if (__FreeBSD_version > 300000) || defined(__NetBSD__)
  165 /* use callout */
  166 #include <sys/callout.h>
  167 
  168 #if (__FreeBSD_version > 500000)
  169 #define CALLOUT_INIT(c)         callout_init((c), 0)
  170 #else
  171 #define CALLOUT_INIT(c)         callout_init((c))
  172 #endif
  173 #define CALLOUT_RESET(c,t,f,a)  callout_reset((c),(t),(f),(a))
  174 #define CALLOUT_STOP(c)         callout_stop((c))
  175 #ifndef CALLOUT_INITIALIZER
  176 #define CALLOUT_INITIALIZER     { { { NULL } }, 0, NULL, NULL, 0 }
  177 #endif
  178 #elif defined(__OpenBSD__)
  179 #include <sys/timeout.h>
  180 /* callout structure as a wrapper of struct timeout */
  181 struct callout {
  182         struct timeout  c_to;
  183 };
  184 #define CALLOUT_INIT(c)         do { (void)memset((c), 0, sizeof(*(c))); } while (/*CONSTCOND*/ 0)
  185 #define CALLOUT_RESET(c,t,f,a)  do { if (!timeout_initialized(&(c)->c_to))  \
  186                                          timeout_set(&(c)->c_to, (f), (a)); \
  187                                      timeout_add(&(c)->c_to, (t)); } while (/*CONSTCOND*/ 0)
  188 #define CALLOUT_STOP(c)         timeout_del(&(c)->c_to)
  189 #define CALLOUT_INITIALIZER     { { { NULL }, NULL, NULL, 0, 0 } }
  190 #else
  191 /* use old-style timeout/untimeout */
  192 /* dummy callout structure */
  193 struct callout {
  194         void            *c_arg;                 /* function argument */
  195         void            (*c_func)(void *);      /* functiuon to call */
  196 };
  197 #define CALLOUT_INIT(c)         do { (void)memset((c), 0, sizeof(*(c))); } while (/*CONSTCOND*/ 0)
  198 #define CALLOUT_RESET(c,t,f,a)  do {    (c)->c_arg = (a);       \
  199                                         (c)->c_func = (f);      \
  200                                         timeout((f),(a),(t)); } while (/*CONSTCOND*/ 0)
  201 #define CALLOUT_STOP(c)         untimeout((c)->c_func,(c)->c_arg)
  202 #define CALLOUT_INITIALIZER     { NULL, NULL }
  203 #endif
  204 #if !defined(__FreeBSD__)
  205 typedef void (timeout_t)(void *);
  206 #endif
  207 
  208 #define m_pktlen(m)             ((m)->m_pkthdr.len)
  209 
  210 struct ifnet; struct mbuf;
  211 struct pf_altq;
  212 #ifdef ALTQ3_CLFIER_COMPAT
  213 struct flowinfo;
  214 #endif
  215 
  216 void    *altq_lookup(char *, int);
  217 #ifdef ALTQ3_CLFIER_COMPAT
  218 int     altq_extractflow(struct mbuf *, int, struct flowinfo *, u_int32_t);
  219 int     acc_add_filter(struct acc_classifier *, struct flow_filter *,
  220             void *, u_long *);
  221 int     acc_delete_filter(struct acc_classifier *, u_long);
  222 int     acc_discard_filters(struct acc_classifier *, void *, int);
  223 void    *acc_classify(void *, struct mbuf *, int);
  224 #endif
  225 u_int8_t read_dsfield(struct mbuf *, struct altq_pktattr *);
  226 void    write_dsfield(struct mbuf *, struct altq_pktattr *, u_int8_t);
  227 void    altq_assert(const char *, int, const char *);
  228 int     tbr_set(struct ifaltq *, struct tb_profile *);
  229 int     tbr_get(struct ifaltq *, struct tb_profile *);
  230 
  231 int     altq_pfattach(struct pf_altq *);
  232 int     altq_pfdetach(struct pf_altq *);
  233 int     altq_add(struct pf_altq *);
  234 int     altq_remove(struct pf_altq *);
  235 int     altq_add_queue(struct pf_altq *);
  236 int     altq_remove_queue(struct pf_altq *);
  237 int     altq_getqstats(struct pf_altq *, void *, int *);
  238 
  239 int     cbq_pfattach(struct pf_altq *);
  240 int     cbq_add_altq(struct pf_altq *);
  241 int     cbq_remove_altq(struct pf_altq *);
  242 int     cbq_add_queue(struct pf_altq *);
  243 int     cbq_remove_queue(struct pf_altq *);
  244 int     cbq_getqstats(struct pf_altq *, void *, int *);
  245 
  246 int     priq_pfattach(struct pf_altq *);
  247 int     priq_add_altq(struct pf_altq *);
  248 int     priq_remove_altq(struct pf_altq *);
  249 int     priq_add_queue(struct pf_altq *);
  250 int     priq_remove_queue(struct pf_altq *);
  251 int     priq_getqstats(struct pf_altq *, void *, int *);
  252 
  253 int     hfsc_pfattach(struct pf_altq *);
  254 int     hfsc_add_altq(struct pf_altq *);
  255 int     hfsc_remove_altq(struct pf_altq *);
  256 int     hfsc_add_queue(struct pf_altq *);
  257 int     hfsc_remove_queue(struct pf_altq *);
  258 int     hfsc_getqstats(struct pf_altq *, void *, int *);
  259 
  260 #endif /* _KERNEL */
  261 #endif /* _ALTQ_ALTQ_VAR_H_ */

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