static int red_parse_opt(struct qdisc_util *qu, int argc, char **argv, struct nlmsghdr *n) { struct tc_red_qopt opt; unsigned burst = 0; unsigned avpkt = 0; double probability = 0.02; __u64 rate = 0; int wlog; __u8 sbuf[256]; __u32 max_P; struct rtattr *tail; memset(&opt, 0, sizeof(opt)); while (argc > 0) { if (strcmp(*argv, "limit") == 0) { NEXT_ARG(); if (get_size(&opt.limit, *argv)) { fprintf(stderr, "Illegal \"limit\"\n"); return -1; } } else if (strcmp(*argv, "min") == 0) { NEXT_ARG(); if (get_size(&opt.qth_min, *argv)) { fprintf(stderr, "Illegal \"min\"\n"); return -1; } } else if (strcmp(*argv, "max") == 0) { NEXT_ARG(); if (get_size(&opt.qth_max, *argv)) { fprintf(stderr, "Illegal \"max\"\n"); return -1; } } else if (strcmp(*argv, "burst") == 0) { NEXT_ARG(); if (get_unsigned(&burst, *argv, 0)) { fprintf(stderr, "Illegal \"burst\"\n"); return -1; } } else if (strcmp(*argv, "avpkt") == 0) { NEXT_ARG(); if (get_size(&avpkt, *argv)) { fprintf(stderr, "Illegal \"avpkt\"\n"); return -1; } } else if (strcmp(*argv, "probability") == 0) { NEXT_ARG(); if (sscanf(*argv, "%lg", &probability) != 1) { fprintf(stderr, "Illegal \"probability\"\n"); return -1; } } else if (strcmp(*argv, "bandwidth") == 0) { NEXT_ARG(); if (get_rate(&rate, *argv)) { fprintf(stderr, "Illegal \"bandwidth\"\n"); return -1; } } else if (strcmp(*argv, "ecn") == 0) { opt.flags |= TC_RED_ECN; } else if (strcmp(*argv, "harddrop") == 0) { opt.flags |= TC_RED_HARDDROP; } else if (strcmp(*argv, "adaptative") == 0) { opt.flags |= TC_RED_ADAPTATIVE; } else if (strcmp(*argv, "adaptive") == 0) { opt.flags |= TC_RED_ADAPTATIVE; } else if (strcmp(*argv, "help") == 0) { explain(); return -1; } else { fprintf(stderr, "What is \"%s\"?\n", *argv); explain(); return -1; } argc--; argv++; } if (rate == 0) get_rate(&rate, "10Mbit"); if (!opt.limit || !avpkt) { fprintf(stderr, "RED: Required parameter (limit, avpkt) is missing\n"); return -1; } /* Compute default min/max thresholds based on * Sally Floyd's recommendations: * http://www.icir.org/floyd/REDparameters.txt */ if (!opt.qth_max) opt.qth_max = opt.qth_min ? opt.qth_min * 3 : opt.limit / 4; if (!opt.qth_min) opt.qth_min = opt.qth_max / 3; if (!burst) burst = (2 * opt.qth_min + opt.qth_max) / (3 * avpkt); if ((wlog = tc_red_eval_ewma(opt.qth_min, burst, avpkt)) < 0) { fprintf(stderr, "RED: failed to calculate EWMA constant.\n"); return -1; } if (wlog >= 10) fprintf(stderr, "RED: WARNING. Burst %d seems to be too large.\n", burst); opt.Wlog = wlog; if ((wlog = tc_red_eval_P(opt.qth_min, opt.qth_max, probability)) < 0) { fprintf(stderr, "RED: failed to calculate probability.\n"); return -1; } opt.Plog = wlog; if ((wlog = tc_red_eval_idle_damping(opt.Wlog, avpkt, rate, sbuf)) < 0) { fprintf(stderr, "RED: failed to calculate idle damping table.\n"); return -1; } opt.Scell_log = wlog; tail = NLMSG_TAIL(n); addattr_l(n, 1024, TCA_OPTIONS, NULL, 0); addattr_l(n, 1024, TCA_RED_PARMS, &opt, sizeof(opt)); addattr_l(n, 1024, TCA_RED_STAB, sbuf, 256); max_P = probability * pow(2, 32); addattr_l(n, 1024, TCA_RED_MAX_P, &max_P, sizeof(max_P)); tail->rta_len = (void *) NLMSG_TAIL(n) - (void *) tail; return 0; }
/* ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ */ static int gred_parse_opt(struct qdisc_util *qu, int argc, char **argv, struct nlmsghdr *n) { int ok = 0; struct tc_gred_qopt opt = { 0 }; unsigned int burst = 0; unsigned int avpkt = 0; double probability = 0.02; unsigned int rate = 0; int parm; __u8 sbuf[256]; struct rtattr *tail; __u32 max_P; opt.DP = MAX_DPs; while (argc > 0) { if (strcmp(*argv, "limit") == 0) { NEXT_ARG(); if (get_size(&opt.limit, *argv)) { fprintf(stderr, "Illegal \"limit\"\n"); return -1; } ok++; } else if (strcmp(*argv, "setup") == 0) { if (ok) { fprintf(stderr, "Illegal \"setup\"\n"); return -1; } return init_gred(qu, argc-1, argv+1, n); } else if (strcmp(*argv, "min") == 0) { NEXT_ARG(); if (get_size(&opt.qth_min, *argv)) { fprintf(stderr, "Illegal \"min\"\n"); return -1; } ok++; } else if (strcmp(*argv, "max") == 0) { NEXT_ARG(); if (get_size(&opt.qth_max, *argv)) { fprintf(stderr, "Illegal \"max\"\n"); return -1; } ok++; } else if (strcmp(*argv, "vq") == 0 || strcmp(*argv, "DP") == 0) { NEXT_ARG(); if (get_unsigned(&opt.DP, *argv, 10)) { fprintf(stderr, "Illegal \"vq\"\n"); return -1; } else if (opt.DP >= MAX_DPs) { fprintf(stderr, "GRED: only %u VQs are currently supported\n", MAX_DPs); return -1; } /* need a better error check */ ok++; } else if (strcmp(*argv, "burst") == 0) { NEXT_ARG(); if (get_unsigned(&burst, *argv, 0)) { fprintf(stderr, "Illegal \"burst\"\n"); return -1; } ok++; } else if (strcmp(*argv, "avpkt") == 0) { NEXT_ARG(); if (get_size(&avpkt, *argv)) { fprintf(stderr, "Illegal \"avpkt\"\n"); return -1; } ok++; } else if (strcmp(*argv, "probability") == 0) { NEXT_ARG(); if (sscanf(*argv, "%lg", &probability) != 1) { fprintf(stderr, "Illegal \"probability\"\n"); return -1; } ok++; } else if (strcmp(*argv, "prio") == 0) { NEXT_ARG(); opt.prio = strtol(*argv, (char **)NULL, 10); /* some error check here */ ok++; } else if (strcmp(*argv, "bandwidth") == 0) { NEXT_ARG(); if (get_rate(&rate, *argv)) { fprintf(stderr, "Illegal \"bandwidth\"\n"); return -1; } ok++; } else if (strcmp(*argv, "help") == 0) { explain(); return -1; } else { fprintf(stderr, "What is \"%s\"?\n", *argv); explain(); return -1; } argc--; argv++; } if (!ok) { explain(); return -1; } if (opt.DP == MAX_DPs || !opt.limit || !opt.qth_min || !opt.qth_max || !avpkt) { fprintf(stderr, "Required parameter (vq, limit, min, max, avpkt) is missing\n"); return -1; } if (!burst) { burst = (2 * opt.qth_min + opt.qth_max) / (3 * avpkt); fprintf(stderr, "GRED: set burst to %u\n", burst); } if (!rate) { get_rate(&rate, "10Mbit"); fprintf(stderr, "GRED: set bandwidth to 10Mbit\n"); } if ((parm = tc_red_eval_ewma(opt.qth_min, burst, avpkt)) < 0) { fprintf(stderr, "GRED: failed to calculate EWMA constant.\n"); return -1; } if (parm >= 10) fprintf(stderr, "GRED: WARNING. Burst %u seems to be too large.\n", burst); opt.Wlog = parm; if ((parm = tc_red_eval_P(opt.qth_min, opt.qth_max, probability)) < 0) { fprintf(stderr, "GRED: failed to calculate probability.\n"); return -1; } opt.Plog = parm; if ((parm = tc_red_eval_idle_damping(opt.Wlog, avpkt, rate, sbuf)) < 0) { fprintf(stderr, "GRED: failed to calculate idle damping table.\n"); return -1; } opt.Scell_log = parm; tail = NLMSG_TAIL(n); addattr_l(n, 1024, TCA_OPTIONS, NULL, 0); addattr_l(n, 1024, TCA_GRED_PARMS, &opt, sizeof(opt)); addattr_l(n, 1024, TCA_GRED_STAB, sbuf, 256); max_P = probability * pow(2, 32); addattr32(n, 1024, TCA_GRED_MAX_P, max_P); tail->rta_len = (void *) NLMSG_TAIL(n) - (void *) tail; return 0; }
static int red_parse_opt(struct qdisc_util *qu, int argc, char **argv, struct nlmsghdr *n) { int ok=0; struct tc_red_qopt opt; unsigned burst = 0; unsigned avpkt = 0; double probability = 0.02; unsigned rate = 0; int ecn_ok = 0; int wlog; __u8 sbuf[256]; struct rtattr *tail; memset(&opt, 0, sizeof(opt)); while (argc > 0) { if (strcmp(*argv, "limit") == 0) { NEXT_ARG(); if (get_size(&opt.limit, *argv)) { my_printf("Illegal \"limit\"\n"); return -1; } ok++; } else if (strcmp(*argv, "min") == 0) { NEXT_ARG(); if (get_size(&opt.qth_min, *argv)) { my_printf("Illegal \"min\"\n"); return -1; } ok++; } else if (strcmp(*argv, "max") == 0) { NEXT_ARG(); if (get_size(&opt.qth_max, *argv)) { my_printf("Illegal \"max\"\n"); return -1; } ok++; } else if (strcmp(*argv, "burst") == 0) { NEXT_ARG(); if (get_unsigned(&burst, *argv, 0)) { my_printf("Illegal \"burst\"\n"); return -1; } ok++; } else if (strcmp(*argv, "avpkt") == 0) { NEXT_ARG(); if (get_size(&avpkt, *argv)) { my_printf("Illegal \"avpkt\"\n"); return -1; } ok++; } else if (strcmp(*argv, "probability") == 0) { NEXT_ARG(); if (sscanf(*argv, "%lg", &probability) != 1) { my_printf("Illegal \"probability\"\n"); return -1; } ok++; } else if (strcmp(*argv, "bandwidth") == 0) { NEXT_ARG(); if (get_rate(&rate, *argv)) { my_printf("Illegal \"bandwidth\"\n"); return -1; } ok++; } else if (strcmp(*argv, "ecn") == 0) { ecn_ok = 1; ok++; } else if (strcmp(*argv, "help") == 0) { explain(); return -1; } else { my_printf("What is \"%s\"?\n", *argv); explain(); return -1; } argc--; argv++; } if (!ok) return 0; if (rate == 0) get_rate(&rate, "10Mbit"); if (!opt.qth_min || !opt.qth_max || !burst || !opt.limit || !avpkt) { my_printf("Required parameter (min, max, burst, limit, avpket) is missing\n"); return -1; } if ((wlog = tc_red_eval_ewma(opt.qth_min, burst, avpkt)) < 0) { my_printf("RED: failed to calculate EWMA constant.\n"); return -1; } if (wlog >= 10) my_printf("RED: WARNING. Burst %d seems to be to large.\n", burst); opt.Wlog = wlog; if ((wlog = tc_red_eval_P(opt.qth_min, opt.qth_max, probability)) < 0) { my_printf("RED: failed to calculate probability.\n"); return -1; } opt.Plog = wlog; if ((wlog = tc_red_eval_idle_damping(opt.Wlog, avpkt, rate, sbuf)) < 0) { my_printf("RED: failed to calculate idle damping table.\n"); return -1; } opt.Scell_log = wlog; if (ecn_ok) { #ifdef TC_RED_ECN opt.flags |= TC_RED_ECN; #else my_printf("RED: ECN support is missing in this binary.\n"); return -1; #endif } tail = NLMSG_TAIL(n); addattr_l(n, 1024, TCA_OPTIONS, NULL, 0); addattr_l(n, 1024, TCA_RED_PARMS, &opt, sizeof(opt)); addattr_l(n, 1024, TCA_RED_STAB, sbuf, 256); tail->rta_len = (void *) NLMSG_TAIL(n) - (void *) tail; return 0; }
/* ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ */ static int gred_parse_opt(struct qdisc_util *qu, int argc, char **argv, struct nlmsghdr *n) { int ok=0; struct tc_gred_qopt opt; unsigned burst = 0; unsigned avpkt = 0; double probability = 0.02; unsigned rate = 0; int wlog; __u8 sbuf[256]; struct rtattr *tail; memset(&opt, 0, sizeof(opt)); while (argc > 0) { if (strcmp(*argv, "limit") == 0) { NEXT_ARG(); if (get_size(&opt.limit, *argv)) { fprintf(stderr, "Illegal \"limit\"\n"); return -1; } ok++; } else if (strcmp(*argv, "setup") == 0) { if (ok) { fprintf(stderr, "Illegal \"setup\"\n"); return -1; } return init_gred(qu,argc-1, argv+1,n); } else if (strcmp(*argv, "min") == 0) { NEXT_ARG(); if (get_size(&opt.qth_min, *argv)) { fprintf(stderr, "Illegal \"min\"\n"); return -1; } ok++; } else if (strcmp(*argv, "max") == 0) { NEXT_ARG(); if (get_size(&opt.qth_max, *argv)) { fprintf(stderr, "Illegal \"max\"\n"); return -1; } ok++; } else if (strcmp(*argv, "DP") == 0) { NEXT_ARG(); opt.DP=strtol(*argv, (char **)NULL, 10); DPRINTF ("\n ******* DP =%u\n",opt.DP); if (opt.DP >MAX_DPs) { /* need a better error check */ fprintf(stderr, "DP =%u \n",opt.DP); fprintf(stderr, "Illegal \"DP\"\n"); fprintf(stderr, "GRED: only %d DPs are currently supported\n",MAX_DPs); return -1; } ok++; } else if (strcmp(*argv, "burst") == 0) { NEXT_ARG(); if (get_unsigned(&burst, *argv, 0)) { fprintf(stderr, "Illegal \"burst\"\n"); return -1; } ok++; } else if (strcmp(*argv, "avpkt") == 0) { NEXT_ARG(); if (get_size(&avpkt, *argv)) { fprintf(stderr, "Illegal \"avpkt\"\n"); return -1; } ok++; } else if (strcmp(*argv, "probability") == 0) { NEXT_ARG(); if (sscanf(*argv, "%lg", &probability) != 1) { fprintf(stderr, "Illegal \"probability\"\n"); return -1; } ok++; } else if (strcmp(*argv, "prio") == 0) { NEXT_ARG(); opt.prio=strtol(*argv, (char **)NULL, 10); /* some error check here */ ok++; } else if (strcmp(*argv, "bandwidth") == 0) { NEXT_ARG(); if (get_rate(&rate, *argv)) { fprintf(stderr, "Illegal \"bandwidth\"\n"); return -1; } ok++; } else if (strcmp(*argv, "help") == 0) { explain(); return -1; } else { fprintf(stderr, "What is \"%s\"?\n", *argv); explain(); return -1; } argc--; argv++; } if (!ok) return 0; if (rate == 0) get_rate(&rate, "10Mbit"); if (!opt.qth_min || !opt.qth_max || !burst || !opt.limit || !avpkt || (opt.DP<0)) { fprintf(stderr, "Required parameter (min, max, burst, limit, " "avpket, DP) is missing\n"); return -1; } if ((wlog = tc_red_eval_ewma(opt.qth_min, burst, avpkt)) < 0) { fprintf(stderr, "GRED: failed to calculate EWMA constant.\n"); return -1; } if (wlog >= 10) fprintf(stderr, "GRED: WARNING. Burst %d seems to be to " "large.\n", burst); opt.Wlog = wlog; if ((wlog = tc_red_eval_P(opt.qth_min, opt.qth_max, probability)) < 0) { fprintf(stderr, "GRED: failed to calculate probability.\n"); return -1; } opt.Plog = wlog; if ((wlog = tc_red_eval_idle_damping(opt.Wlog, avpkt, rate, sbuf)) < 0) { fprintf(stderr, "GRED: failed to calculate idle damping " "table.\n"); return -1; } opt.Scell_log = wlog; tail = NLMSG_TAIL(n); addattr_l(n, 1024, TCA_OPTIONS, NULL, 0); addattr_l(n, 1024, TCA_GRED_PARMS, &opt, sizeof(opt)); addattr_l(n, 1024, TCA_GRED_STAB, sbuf, 256); tail->rta_len = (void *) NLMSG_TAIL(n) - (void *) tail; return 0; }
static int sfq_parse_opt(struct qdisc_util *qu, int argc, char **argv, struct nlmsghdr *n) { int ok = 0, red = 0; struct tc_sfq_qopt_v1 opt; unsigned int burst = 0; int wlog; unsigned int avpkt = 1000; double probability = 0.02; memset(&opt, 0, sizeof(opt)); while (argc > 0) { if (strcmp(*argv, "quantum") == 0) { NEXT_ARG(); if (get_size(&opt.v0.quantum, *argv)) { fprintf(stderr, "Illegal \"limit\"\n"); return -1; } ok++; } else if (strcmp(*argv, "perturb") == 0) { NEXT_ARG(); if (get_integer(&opt.v0.perturb_period, *argv, 0)) { fprintf(stderr, "Illegal \"perturb\"\n"); return -1; } ok++; } else if (strcmp(*argv, "limit") == 0) { NEXT_ARG(); if (get_u32(&opt.v0.limit, *argv, 0)) { fprintf(stderr, "Illegal \"limit\"\n"); return -1; } if (opt.v0.limit < 2) { fprintf(stderr, "Illegal \"limit\", must be > 1\n"); return -1; } ok++; } else if (strcmp(*argv, "divisor") == 0) { NEXT_ARG(); if (get_u32(&opt.v0.divisor, *argv, 0)) { fprintf(stderr, "Illegal \"divisor\"\n"); return -1; } ok++; } else if (strcmp(*argv, "flows") == 0) { NEXT_ARG(); if (get_u32(&opt.v0.flows, *argv, 0)) { fprintf(stderr, "Illegal \"flows\"\n"); return -1; } ok++; } else if (strcmp(*argv, "depth") == 0) { NEXT_ARG(); if (get_u32(&opt.depth, *argv, 0)) { fprintf(stderr, "Illegal \"flows\"\n"); return -1; } ok++; } else if (strcmp(*argv, "headdrop") == 0) { opt.headdrop = 1; ok++; } else if (strcmp(*argv, "redflowlimit") == 0) { NEXT_ARG(); if (get_u32(&opt.limit, *argv, 0)) { fprintf(stderr, "Illegal \"redflowlimit\"\n"); return -1; } red++; } else if (strcmp(*argv, "min") == 0) { NEXT_ARG(); if (get_u32(&opt.qth_min, *argv, 0)) { fprintf(stderr, "Illegal \"min\"\n"); return -1; } red++; } else if (strcmp(*argv, "max") == 0) { NEXT_ARG(); if (get_u32(&opt.qth_max, *argv, 0)) { fprintf(stderr, "Illegal \"max\"\n"); return -1; } red++; } else if (strcmp(*argv, "burst") == 0) { NEXT_ARG(); if (get_unsigned(&burst, *argv, 0)) { fprintf(stderr, "Illegal \"burst\"\n"); return -1; } red++; } else if (strcmp(*argv, "avpkt") == 0) { NEXT_ARG(); if (get_size(&avpkt, *argv)) { fprintf(stderr, "Illegal \"avpkt\"\n"); return -1; } red++; } else if (strcmp(*argv, "probability") == 0) { NEXT_ARG(); if (sscanf(*argv, "%lg", &probability) != 1) { fprintf(stderr, "Illegal \"probability\"\n"); return -1; } red++; } else if (strcmp(*argv, "ecn") == 0) { opt.flags |= TC_RED_ECN; red++; } else if (strcmp(*argv, "harddrop") == 0) { opt.flags |= TC_RED_HARDDROP; red++; } else if (strcmp(*argv, "help") == 0) { explain(); return -1; } else { fprintf(stderr, "What is \"%s\"?\n", *argv); explain(); return -1; } argc--; argv++; } if (red) { if (!opt.limit) { fprintf(stderr, "Required parameter (redflowlimit) is missing\n"); return -1; } /* Compute default min/max thresholds based on Sally Floyd's recommendations: http://www.icir.org/floyd/REDparameters.txt */ if (!opt.qth_max) opt.qth_max = opt.limit / 4; if (!opt.qth_min) opt.qth_min = opt.qth_max / 3; if (!burst) burst = (2 * opt.qth_min + opt.qth_max) / (3 * avpkt); if (opt.qth_max > opt.limit) { fprintf(stderr, "\"max\" is larger than \"limit\"\n"); return -1; } if (opt.qth_min >= opt.qth_max) { fprintf(stderr, "\"min\" is not smaller than \"max\"\n"); return -1; } wlog = tc_red_eval_ewma(opt.qth_min, burst, avpkt); if (wlog < 0) { fprintf(stderr, "SFQ: failed to calculate EWMA constant.\n"); return -1; } if (wlog >= 10) fprintf(stderr, "SFQ: WARNING. Burst %u seems to be too large.\n", burst); opt.Wlog = wlog; wlog = tc_red_eval_P(opt.qth_min, opt.qth_max, probability); if (wlog < 0) { fprintf(stderr, "SFQ: failed to calculate probability.\n"); return -1; } opt.Plog = wlog; opt.max_P = probability * pow(2, 32); } if (ok || red) addattr_l(n, 1024, TCA_OPTIONS, &opt, sizeof(opt)); return 0; }