altq_var.h revision 1.1
1 /* $KAME: altq_var.h,v 1.7 2000/12/14 08:12:46 thorpej Exp $ */ 2 3 /* 4 * Copyright (C) 1998-2000 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 #ifndef _ALTQ_ALTQ_VAR_H_ 29 #define _ALTQ_ALTQ_VAR_H_ 30 31 #ifdef _KERNEL 32 33 #include <sys/param.h> 34 #include <sys/kernel.h> 35 #include <sys/queue.h> 36 37 /* 38 * filter structure for altq common classifier 39 */ 40 struct acc_filter { 41 LIST_ENTRY(acc_filter) f_chain; 42 void *f_class; /* pointer to the class */ 43 u_long f_handle; /* filter id */ 44 u_int32_t f_fbmask; /* filter bitmask */ 45 struct flow_filter f_filter; /* filter value */ 46 }; 47 48 /* 49 * XXX ACC_FILTER_TABLESIZE can't be larger than 2048 unless we fix 50 * the handle assignment. 51 */ 52 #define ACC_FILTER_TABLESIZE (256+1) 53 #define ACC_FILTER_MASK (ACC_FILTER_TABLESIZE - 2) 54 #define ACC_WILDCARD_INDEX (ACC_FILTER_TABLESIZE - 1) 55 #ifdef __GNUC__ 56 #define ACC_GET_HASH_INDEX(addr) \ 57 ({int x = (addr) + ((addr) >> 16); (x + (x >> 8)) & ACC_FILTER_MASK;}) 58 #else 59 #define ACC_GET_HASH_INDEX(addr) \ 60 (((addr) + ((addr) >> 8) + ((addr) >> 16) + ((addr) >> 24)) \ 61 & ACC_FILTER_MASK) 62 #endif 63 #define ACC_GET_HINDEX(handle) ((handle) >> 20) 64 65 struct acc_classifier { 66 u_int32_t acc_fbmask; 67 LIST_HEAD(filt, acc_filter) acc_filters[ACC_FILTER_TABLESIZE]; 68 }; 69 70 /* 71 * flowinfo mask bits used by classifier 72 */ 73 /* for ipv4 */ 74 #define FIMB4_PROTO 0x0001 75 #define FIMB4_TOS 0x0002 76 #define FIMB4_DADDR 0x0004 77 #define FIMB4_SADDR 0x0008 78 #define FIMB4_DPORT 0x0010 79 #define FIMB4_SPORT 0x0020 80 #define FIMB4_GPI 0x0040 81 #define FIMB4_ALL 0x007f 82 /* for ipv6 */ 83 #define FIMB6_PROTO 0x0100 84 #define FIMB6_TCLASS 0x0200 85 #define FIMB6_DADDR 0x0400 86 #define FIMB6_SADDR 0x0800 87 #define FIMB6_DPORT 0x1000 88 #define FIMB6_SPORT 0x2000 89 #define FIMB6_GPI 0x4000 90 #define FIMB6_FLABEL 0x8000 91 #define FIMB6_ALL 0xff00 92 93 #define FIMB_ALL (FIMB4_ALL|FIMB6_ALL) 94 95 #define FIMB4_PORTS (FIMB4_DPORT|FIMB4_SPORT|FIMB4_GPI) 96 #define FIMB6_PORTS (FIMB6_DPORT|FIMB6_SPORT|FIMB6_GPI) 97 98 /* 99 * machine dependent clock 100 * a 64bit high resolution time counter. 101 */ 102 extern u_int32_t machclk_freq; 103 extern u_int32_t machclk_per_tick; 104 extern void init_machclk(void); 105 106 #if defined(__i386__) && !defined(ALTQ_NOPCC) 107 /* for pentium tsc */ 108 #include <machine/cpufunc.h> 109 110 #define read_machclk() rdtsc() 111 #ifdef __OpenBSD__ 112 static __inline u_int64_t 113 rdtsc(void) 114 { 115 u_int64_t rv; 116 __asm __volatile(".byte 0x0f, 0x31" : "=A" (rv)); 117 return (rv); 118 } 119 #endif /* __OpenBSD__ */ 120 121 #elif defined(__alpha__) && !defined(ALTQ_NOPCC) 122 /* for alpha rpcc */ 123 extern u_int64_t read_machclk(void); 124 125 #else /* !i386 && !alpha */ 126 /* emulate 256MHz using microtime() */ 127 #define MACHCLK_SHIFT 8 128 static __inline u_int64_t 129 read_machclk(void) 130 { 131 struct timeval tv; 132 microtime(&tv); 133 return (((u_int64_t)(tv.tv_sec - boottime.tv_sec) * 1000000 134 + tv.tv_usec) << MACHCLK_SHIFT); 135 } 136 #endif /* !i386 && !alpha */ 137 138 /* 139 * debug support 140 */ 141 #ifdef ALTQ_DEBUG 142 #ifdef __STDC__ 143 #define ASSERT(e) ((e) ? (void)0 : altq_assert(__FILE__, __LINE__, #e)) 144 #else /* PCC */ 145 #define ASSERT(e) ((e) ? (void)0 : altq_assert(__FILE__, __LINE__, "e")) 146 #endif 147 #else 148 #define ASSERT(e) ((void)0) 149 #endif 150 151 /* 152 * misc stuff for compatibility 153 */ 154 /* ioctl cmd type */ 155 #if defined(__FreeBSD__) && (__FreeBSD__ < 3) 156 typedef int ioctlcmd_t; 157 #else 158 typedef u_long ioctlcmd_t; 159 #endif 160 161 /* 162 * queue macros: 163 * the interface of TAILQ_LAST macro changed after the introduction 164 * of softupdate. redefine it here to make it work with pre-2.2.7. 165 */ 166 #undef TAILQ_LAST 167 #define TAILQ_LAST(head, headname) \ 168 (*(((struct headname *)((head)->tqh_last))->tqh_last)) 169 170 #ifndef TAILQ_EMPTY 171 #define TAILQ_EMPTY(head) ((head)->tqh_first == NULL) 172 #endif 173 #ifndef TAILQ_FOREACH 174 #define TAILQ_FOREACH(var, head, field) \ 175 for (var = TAILQ_FIRST(head); var; var = TAILQ_NEXT(var, field)) 176 #endif 177 178 /* macro for timeout/untimeout */ 179 #if (__FreeBSD_version > 300000) || defined(__NetBSD__) 180 /* use callout */ 181 #include <sys/callout.h> 182 183 #define CALLOUT_INIT(c) callout_init((c)) 184 #define CALLOUT_RESET(c,t,f,a) callout_reset((c),(t),(f),(a)) 185 #define CALLOUT_STOP(c) callout_stop((c)) 186 #ifndef CALLOUT_INITIALIZER 187 #define CALLOUT_INITIALIZER { { { NULL } }, 0, NULL, NULL, 0 } 188 #endif 189 #else 190 /* use old-style timeout/untimeout */ 191 /* dummy callout structure */ 192 struct callout { 193 void *c_arg; /* function argument */ 194 void (*c_func) __P((void *));/* functiuon to call */ 195 }; 196 #define CALLOUT_INIT(c) do { bzero((c), sizeof(*(c))); } while (0) 197 #define CALLOUT_RESET(c,t,f,a) do { (c)->c_arg = (a); \ 198 (c)->c_func = (f); \ 199 timeout((f),(a),(t)); } while (0) 200 #define CALLOUT_STOP(c) untimeout((c)->c_func,(c)->c_arg) 201 #define CALLOUT_INITIALIZER { NULL, NULL } 202 #endif 203 #if !defined(__FreeBSD__) 204 typedef void (timeout_t)(void *); 205 #endif 206 207 #define m_pktlen(m) ((m)->m_pkthdr.len) 208 209 struct ifnet; struct mbuf; struct flowinfo; 210 211 void *altq_lookup __P((char *, int)); 212 int altq_extractflow __P((struct mbuf *, int, struct flowinfo *, u_int32_t)); 213 int acc_add_filter __P((struct acc_classifier *, struct flow_filter *, 214 void *, u_long *)); 215 int acc_delete_filter __P((struct acc_classifier *, u_long)); 216 int acc_discard_filters __P((struct acc_classifier *, void *, int)); 217 void *acc_classify __P((void *, struct mbuf *, int)); 218 u_int8_t read_dsfield __P((struct mbuf *, struct altq_pktattr *)); 219 void write_dsfield __P((struct mbuf *, struct altq_pktattr *, u_int8_t)); 220 void altq_assert __P((const char *, int, const char *)); 221 int tbr_set __P((struct ifaltq *, struct tb_profile *)); 222 int tbr_get __P((struct ifaltq *, struct tb_profile *)); 223 224 #endif /* _KERNEL */ 225 #endif /* _ALTQ_ALTQ_VAR_H_ */ 226
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