package/iproute2/patches/006-iproute2-tc_esfq.patch

   1 diff -Naur iproute-2.6.20-070313.orig/include/linux/pkt_sched.h iproute-2.6.20-070313/include/linux/pkt_sched.h
   2 --- iproute-2.6.20-070313.orig/include/linux/pkt_sched.h        2007-03-13 14:50:56.000000000 -0700
   3 +++ iproute-2.6.20-070313/include/linux/pkt_sched.h     2007-06-09 11:32:22.000000000 -0700
   4 @@ -146,8 +146,37 @@
   5   *
   6   *     The only reason for this is efficiency, it is possible
   7   *     to change these parameters in compile time.
   8 + *
   9 + *     If you need to play with these values, use esfq instead.
  10   */
  11
  12 +/* ESFQ section */
  13 +
  14 +enum
  15 +{
  16 +       /* traditional */
  17 +       TCA_SFQ_HASH_CLASSIC,
  18 +       TCA_SFQ_HASH_DST,
  19 +       TCA_SFQ_HASH_SRC,
  20 +       TCA_SFQ_HASH_FWMARK,
  21 +       /* conntrack */
  22 +       TCA_SFQ_HASH_CTORIGDST,
  23 +       TCA_SFQ_HASH_CTORIGSRC,
  24 +       TCA_SFQ_HASH_CTREPLDST,
  25 +       TCA_SFQ_HASH_CTREPLSRC,
  26 +       TCA_SFQ_HASH_CTNATCHG,
  27 +};
  28 +
  29 +struct tc_esfq_qopt
  30 +{
  31 +       unsigned        quantum;        /* Bytes per round allocated to flow */
  32 +       int             perturb_period; /* Period of hash perturbation */
  33 +       __u32           limit;          /* Maximal packets in queue */
  34 +       unsigned        divisor;        /* Hash divisor  */
  35 +       unsigned        flows;          /* Maximal number of flows  */
  36 +       unsigned        hash_kind;      /* Hash function to use for flow identification */
  37 +};
  38 +
  39  /* RED section */
  40
  41  enum
  42 diff -Naur iproute-2.6.20-070313.orig/tc/Makefile iproute-2.6.20-070313/tc/Makefile
  43 --- iproute-2.6.20-070313.orig/tc/Makefile      2007-03-13 14:50:56.000000000 -0700
  44 +++ iproute-2.6.20-070313/tc/Makefile   2007-06-09 00:39:44.000000000 -0700
  45 @@ -7,6 +7,7 @@
  46  TCMODULES :=
  47  TCMODULES += q_fifo.o
  48  TCMODULES += q_sfq.o
  49 +TCMODULES += q_esfq.o
  50  TCMODULES += q_red.o
  51  TCMODULES += q_prio.o
  52  TCMODULES += q_tbf.o
  53 diff -Naur iproute-2.6.20-070313.orig/tc/q_esfq.c iproute-2.6.20-070313/tc/q_esfq.c
  54 --- iproute-2.6.20-070313.orig/tc/q_esfq.c      1969-12-31 16:00:00.000000000 -0800
  55 +++ iproute-2.6.20-070313/tc/q_esfq.c   2007-06-09 11:38:59.000000000 -0700
  56 @@ -0,0 +1,198 @@
  57 +/*
  58 + * q_esfq.c            ESFQ.
  59 + *
  60 + *             This program is free software; you can redistribute it and/or
  61 + *             modify it under the terms of the GNU General Public License
  62 + *             as published by the Free Software Foundation; either version
  63 + *             2 of the License, or (at your option) any later version.
  64 + *
  65 + * Authors:    Alexey Kuznetsov, <kuznet@ms2.inr.ac.ru>
  66 + *
  67 + * Changes:    Alexander Atanasov, <alex@ssi.bg>
  68 + *             Alexander Clouter, <alex@digriz.org.uk>
  69 + *             Corey Hickey, <bugfood-c@fatooh.org>
  70 + *
  71 + */
  72 +
  73 +#include <stdio.h>
  74 +#include <stdlib.h>
  75 +#include <unistd.h>
  76 +#include <syslog.h>
  77 +#include <fcntl.h>
  78 +#include <math.h>
  79 +#include <sys/socket.h>
  80 +#include <netinet/in.h>
  81 +#include <arpa/inet.h>
  82 +#include <string.h>
  83 +
  84 +#include "utils.h"
  85 +#include "tc_util.h"
  86 +
  87 +static void explain(void)
  88 +{
  89 +       fprintf(stderr, "Usage: ... esfq [ perturb SECS ] [ quantum BYTES ] [ depth FLOWS ]\n\t[ divisor HASHBITS ] [ limit PKTS ] [ hash HASHTYPE]\n");
  90 +       fprintf(stderr,"Where: \n");
  91 +       fprintf(stderr,"HASHTYPE := { classic | src | dst | fwmark | ctorigdst | ctorigsrc | ctrepldst | ctreplsrc | ctnatchg}\n");
  92 +}
  93 +
  94 +#define usage() return(-1)
  95 +
  96 +static int esfq_parse_opt(struct qdisc_util *qu, int argc, char **argv, struct nlmsghdr *n)
  97 +{
  98 +       int ok=0;
  99 +       struct tc_esfq_qopt opt;
 100 +
 101 +       memset(&opt, 0, sizeof(opt));
 102 +
 103 +       opt.hash_kind= TCA_SFQ_HASH_CLASSIC;
 104 +
 105 +       while (argc > 0) {
 106 +               if (strcmp(*argv, "quantum") == 0) {
 107 +                       NEXT_ARG();
 108 +                       if (get_size(&opt.quantum, *argv)) {
 109 +                               fprintf(stderr, "Illegal \"quantum\"\n");
 110 +                               return -1;
 111 +                       }
 112 +                       ok++;
 113 +               } else if (strcmp(*argv, "perturb") == 0) {
 114 +                       NEXT_ARG();
 115 +                       if (get_integer(&opt.perturb_period, *argv, 0)) {
 116 +                               fprintf(stderr, "Illegal \"perturb\"\n");
 117 +                               return -1;
 118 +                       }
 119 +                       ok++;
 120 +               } else if (strcmp(*argv, "depth") == 0) {
 121 +                       NEXT_ARG();
 122 +                       if (get_integer((int *) &opt.flows, *argv, 0)) {
 123 +                               fprintf(stderr, "Illegal \"depth\"\n");
 124 +                               return -1;
 125 +                       }
 126 +                       ok++;
 127 +               } else if (strcmp(*argv, "divisor") == 0) {
 128 +                       NEXT_ARG();
 129 +                       if (get_integer((int *) &opt.divisor, *argv, 0)) {
 130 +                               fprintf(stderr, "Illegal \"divisor\"\n");
 131 +                               return -1;
 132 +                       }
 133 +                       if(opt.divisor >= 15) {
 134 +                               fprintf(stderr, "Illegal \"divisor\": must be < 15\n");
 135 +                               return -1;
 136 +                       }
 137 +                       opt.divisor=pow(2,opt.divisor);
 138 +                       ok++;
 139 +               } else if (strcmp(*argv, "limit") == 0) {
 140 +                       NEXT_ARG();
 141 +                       if (get_integer((int *) &opt.limit, *argv, 0)) {
 142 +                               fprintf(stderr, "Illegal \"limit\"\n");
 143 +                               return -1;
 144 +                       }
 145 +                       ok++;
 146 +               } else if (strcmp(*argv, "hash") == 0) {
 147 +                       NEXT_ARG();
 148 +                       if (strcmp(*argv, "classic") == 0) {
 149 +                               opt.hash_kind = TCA_SFQ_HASH_CLASSIC;
 150 +                       } else if (strcmp(*argv, "dst") == 0) {
 151 +                               opt.hash_kind = TCA_SFQ_HASH_DST;
 152 +                       } else if (strcmp(*argv, "src") == 0) {
 153 +                               opt.hash_kind = TCA_SFQ_HASH_SRC;
 154 +                       } else if (strcmp(*argv, "fwmark") == 0) {
 155 +                               opt.hash_kind = TCA_SFQ_HASH_FWMARK;
 156 +                       } else if (strcmp(*argv, "ctorigsrc") == 0) {
 157 +                               opt.hash_kind = TCA_SFQ_HASH_CTORIGSRC;
 158 +                       } else if (strcmp(*argv, "ctorigdst") == 0) {
 159 +                               opt.hash_kind = TCA_SFQ_HASH_CTORIGDST;
 160 +                       } else if (strcmp(*argv, "ctreplsrc") == 0) {
 161 +                               opt.hash_kind = TCA_SFQ_HASH_CTREPLSRC;
 162 +                       } else if (strcmp(*argv, "ctrepldst") == 0) {
 163 +                               opt.hash_kind = TCA_SFQ_HASH_CTREPLDST;
 164 +                       } else if (strcmp(*argv, "ctnatchg") == 0) {
 165 +                               opt.hash_kind = TCA_SFQ_HASH_CTNATCHG;
 166 +                       } else {
 167 +                               fprintf(stderr, "Illegal \"hash\"\n");
 168 +                               explain();
 169 +                               return -1;
 170 +                       }
 171 +                       ok++;
 172 +               } else if (strcmp(*argv, "help") == 0) {
 173 +                       explain();
 174 +                       return -1;
 175 +               } else {
 176 +                       fprintf(stderr, "What is \"%s\"?\n", *argv);
 177 +                       explain();
 178 +                       return -1;
 179 +               }
 180 +               argc--; argv++;
 181 +       }
 182 +
 183 +       if (ok)
 184 +               addattr_l(n, 1024, TCA_OPTIONS, &opt, sizeof(opt));
 185 +       return 0;
 186 +}
 187 +
 188 +static int esfq_print_opt(struct qdisc_util *qu, FILE *f, struct rtattr *opt)
 189 +{
 190 +       struct tc_esfq_qopt *qopt;
 191 +       SPRINT_BUF(b1);
 192 +
 193 +       if (opt == NULL)
 194 +               return 0;
 195 +
 196 +       if (RTA_PAYLOAD(opt)  < sizeof(*qopt))
 197 +               return -1;
 198 +       qopt = RTA_DATA(opt);
 199 +       fprintf(f, "quantum %s ", sprint_size(qopt->quantum, b1));
 200 +       if (show_details) {
 201 +               fprintf(f, "limit %up flows %u/%u ",
 202 +                       qopt->limit, qopt->flows, qopt->divisor);
 203 +       }
 204 +       if (qopt->perturb_period)
 205 +               fprintf(f, "perturb %dsec ", qopt->perturb_period);
 206 +
 207 +               fprintf(f,"hash: ");
 208 +       switch(qopt->hash_kind)
 209 +       {
 210 +       case TCA_SFQ_HASH_CLASSIC:
 211 +               fprintf(f,"classic");
 212 +               break;
 213 +       case TCA_SFQ_HASH_DST:
 214 +               fprintf(f,"dst");
 215 +               break;
 216 +       case TCA_SFQ_HASH_SRC:
 217 +               fprintf(f,"src");
 218 +               break;
 219 +       case TCA_SFQ_HASH_FWMARK:
 220 +               fprintf(f,"fwmark");
 221 +               break;
 222 +       case TCA_SFQ_HASH_CTORIGSRC:
 223 +               fprintf(f,"ctorigsrc");
 224 +               break;
 225 +       case TCA_SFQ_HASH_CTORIGDST:
 226 +               fprintf(f,"ctorigdst");
 227 +               break;
 228 +       case TCA_SFQ_HASH_CTREPLSRC:
 229 +               fprintf(f,"ctreplsrc");
 230 +               break;
 231 +       case TCA_SFQ_HASH_CTREPLDST:
 232 +               fprintf(f,"ctrepldst");
 233 +               break;
 234 +       case TCA_SFQ_HASH_CTNATCHG:
 235 +               fprintf(f,"ctnatchg");
 236 +               break;
 237 +       default:
 238 +               fprintf(f,"Unknown");
 239 +       }
 240 +       return 0;
 241 +}
 242 +
 243 +static int esfq_print_xstats(struct qdisc_util *qu, FILE *f, struct rtattr *xstats)
 244 +{
 245 +       return 0;
 246 +}
 247 +
 248 +
 249 +struct qdisc_util esfq_qdisc_util = {
 250 +       .id = "esfq",
 251 +       .parse_qopt = esfq_parse_opt,
 252 +       .print_qopt = esfq_print_opt,
 253 +       .print_xstats = esfq_print_xstats,
 254 +};