osdl.org!shemminger | aba5acd | 2004-04-15 20:56:59 +0000 | [diff] [blame] | 1 | /* |
| 2 | * q_tbf.c TBF. |
| 3 | * |
| 4 | * This program is free software; you can redistribute it and/or |
| 5 | * modify it under the terms of the GNU General Public License |
| 6 | * as published by the Free Software Foundation; either version |
| 7 | * 2 of the License, or (at your option) any later version. |
| 8 | * |
| 9 | * Authors: Alexey Kuznetsov, <kuznet@ms2.inr.ac.ru> |
| 10 | * |
| 11 | */ |
| 12 | |
| 13 | #include <stdio.h> |
| 14 | #include <stdlib.h> |
| 15 | #include <unistd.h> |
| 16 | #include <syslog.h> |
| 17 | #include <fcntl.h> |
| 18 | #include <sys/socket.h> |
| 19 | #include <netinet/in.h> |
| 20 | #include <arpa/inet.h> |
| 21 | #include <string.h> |
| 22 | |
| 23 | #include "utils.h" |
| 24 | #include "tc_util.h" |
| 25 | |
| 26 | static void explain(void) |
| 27 | { |
| 28 | fprintf(stderr, "Usage: ... tbf limit BYTES burst BYTES[/BYTES] rate KBPS [ mtu BYTES[/BYTES] ]\n"); |
Jesper Dangaard Brouer | 2c42579 | 2008-03-23 23:47:49 +0100 | [diff] [blame] | 29 | fprintf(stderr, " [ peakrate KBPS ] [ latency TIME ] "); |
Jesper Dangaard Brouer | 292f29b | 2008-04-09 23:01:01 +0200 | [diff] [blame] | 30 | fprintf(stderr, "[ overhead BYTES ] [ linklayer TYPE ]\n"); |
osdl.org!shemminger | aba5acd | 2004-04-15 20:56:59 +0000 | [diff] [blame] | 31 | } |
| 32 | |
Kees van Reeuwijk | 3bed7bb | 2013-02-19 07:46:04 +0000 | [diff] [blame] | 33 | static void explain1(const char *arg, const char *val) |
osdl.org!shemminger | aba5acd | 2004-04-15 20:56:59 +0000 | [diff] [blame] | 34 | { |
Kees van Reeuwijk | 3bed7bb | 2013-02-19 07:46:04 +0000 | [diff] [blame] | 35 | fprintf(stderr, "tbf: illegal value for \"%s\": \"%s\"\n", arg, val); |
osdl.org!shemminger | aba5acd | 2004-04-15 20:56:59 +0000 | [diff] [blame] | 36 | } |
| 37 | |
| 38 | |
osdl.org!shemminger | aba5acd | 2004-04-15 20:56:59 +0000 | [diff] [blame] | 39 | static int tbf_parse_opt(struct qdisc_util *qu, int argc, char **argv, struct nlmsghdr *n) |
| 40 | { |
Stephen Hemminger | 32a121c | 2016-03-21 11:48:36 -0700 | [diff] [blame] | 41 | int ok = 0; |
osdl.org!shemminger | aba5acd | 2004-04-15 20:56:59 +0000 | [diff] [blame] | 42 | struct tc_tbf_qopt opt; |
| 43 | __u32 rtab[256]; |
| 44 | __u32 ptab[256]; |
Stephen Hemminger | 32a121c | 2016-03-21 11:48:36 -0700 | [diff] [blame] | 45 | unsigned buffer = 0, mtu = 0, mpu = 0, latency = 0; |
| 46 | int Rcell_log = -1, Pcell_log = -1; |
| 47 | unsigned short overhead = 0; |
Jesper Dangaard Brouer | 292f29b | 2008-04-09 23:01:01 +0200 | [diff] [blame] | 48 | unsigned int linklayer = LINKLAYER_ETHERNET; /* Assume ethernet */ |
osdl.org!shemminger | aba5acd | 2004-04-15 20:56:59 +0000 | [diff] [blame] | 49 | struct rtattr *tail; |
Yang Yingliang | ddc6243 | 2013-11-26 09:55:35 +0800 | [diff] [blame] | 50 | __u64 rate64 = 0, prate64 = 0; |
osdl.org!shemminger | aba5acd | 2004-04-15 20:56:59 +0000 | [diff] [blame] | 51 | |
| 52 | memset(&opt, 0, sizeof(opt)); |
| 53 | |
| 54 | while (argc > 0) { |
| 55 | if (matches(*argv, "limit") == 0) { |
| 56 | NEXT_ARG(); |
Kees van Reeuwijk | 3bed7bb | 2013-02-19 07:46:04 +0000 | [diff] [blame] | 57 | if (opt.limit) { |
| 58 | fprintf(stderr, "tbf: duplicate \"limit\" specification\n"); |
| 59 | return -1; |
| 60 | } |
| 61 | if (latency) { |
| 62 | fprintf(stderr, "tbf: specifying both \"latency\" and \"limit\" is not allowed\n"); |
osdl.org!shemminger | aba5acd | 2004-04-15 20:56:59 +0000 | [diff] [blame] | 63 | return -1; |
| 64 | } |
| 65 | if (get_size(&opt.limit, *argv)) { |
Kees van Reeuwijk | 3bed7bb | 2013-02-19 07:46:04 +0000 | [diff] [blame] | 66 | explain1("limit", *argv); |
osdl.org!shemminger | aba5acd | 2004-04-15 20:56:59 +0000 | [diff] [blame] | 67 | return -1; |
| 68 | } |
| 69 | ok++; |
| 70 | } else if (matches(*argv, "latency") == 0) { |
| 71 | NEXT_ARG(); |
Kees van Reeuwijk | 3bed7bb | 2013-02-19 07:46:04 +0000 | [diff] [blame] | 72 | if (latency) { |
| 73 | fprintf(stderr, "tbf: duplicate \"latency\" specification\n"); |
| 74 | return -1; |
| 75 | } |
| 76 | if (opt.limit) { |
| 77 | fprintf(stderr, "tbf: specifying both \"limit\" and \"/latency\" is not allowed\n"); |
osdl.org!shemminger | aba5acd | 2004-04-15 20:56:59 +0000 | [diff] [blame] | 78 | return -1; |
| 79 | } |
Patrick McHardy | 8f34caa | 2007-03-04 20:15:00 +0100 | [diff] [blame] | 80 | if (get_time(&latency, *argv)) { |
Kees van Reeuwijk | 3bed7bb | 2013-02-19 07:46:04 +0000 | [diff] [blame] | 81 | explain1("latency", *argv); |
osdl.org!shemminger | aba5acd | 2004-04-15 20:56:59 +0000 | [diff] [blame] | 82 | return -1; |
| 83 | } |
| 84 | ok++; |
| 85 | } else if (matches(*argv, "burst") == 0 || |
| 86 | strcmp(*argv, "buffer") == 0 || |
| 87 | strcmp(*argv, "maxburst") == 0) { |
Kees van Reeuwijk | 3bed7bb | 2013-02-19 07:46:04 +0000 | [diff] [blame] | 88 | const char *parm_name = *argv; |
Stephen Hemminger | 32a121c | 2016-03-21 11:48:36 -0700 | [diff] [blame] | 89 | |
osdl.org!shemminger | aba5acd | 2004-04-15 20:56:59 +0000 | [diff] [blame] | 90 | NEXT_ARG(); |
| 91 | if (buffer) { |
Kees van Reeuwijk | 3bed7bb | 2013-02-19 07:46:04 +0000 | [diff] [blame] | 92 | fprintf(stderr, "tbf: duplicate \"buffer/burst/maxburst\" specification\n"); |
osdl.org!shemminger | aba5acd | 2004-04-15 20:56:59 +0000 | [diff] [blame] | 93 | return -1; |
| 94 | } |
| 95 | if (get_size_and_cell(&buffer, &Rcell_log, *argv) < 0) { |
Kees van Reeuwijk | 3bed7bb | 2013-02-19 07:46:04 +0000 | [diff] [blame] | 96 | explain1(parm_name, *argv); |
osdl.org!shemminger | aba5acd | 2004-04-15 20:56:59 +0000 | [diff] [blame] | 97 | return -1; |
| 98 | } |
| 99 | ok++; |
| 100 | } else if (strcmp(*argv, "mtu") == 0 || |
| 101 | strcmp(*argv, "minburst") == 0) { |
Kees van Reeuwijk | 3bed7bb | 2013-02-19 07:46:04 +0000 | [diff] [blame] | 102 | const char *parm_name = *argv; |
Stephen Hemminger | 32a121c | 2016-03-21 11:48:36 -0700 | [diff] [blame] | 103 | |
osdl.org!shemminger | aba5acd | 2004-04-15 20:56:59 +0000 | [diff] [blame] | 104 | NEXT_ARG(); |
| 105 | if (mtu) { |
Kees van Reeuwijk | 3bed7bb | 2013-02-19 07:46:04 +0000 | [diff] [blame] | 106 | fprintf(stderr, "tbf: duplicate \"mtu/minburst\" specification\n"); |
osdl.org!shemminger | aba5acd | 2004-04-15 20:56:59 +0000 | [diff] [blame] | 107 | return -1; |
| 108 | } |
| 109 | if (get_size_and_cell(&mtu, &Pcell_log, *argv) < 0) { |
Kees van Reeuwijk | 3bed7bb | 2013-02-19 07:46:04 +0000 | [diff] [blame] | 110 | explain1(parm_name, *argv); |
osdl.org!shemminger | aba5acd | 2004-04-15 20:56:59 +0000 | [diff] [blame] | 111 | return -1; |
| 112 | } |
| 113 | ok++; |
| 114 | } else if (strcmp(*argv, "mpu") == 0) { |
| 115 | NEXT_ARG(); |
| 116 | if (mpu) { |
Kees van Reeuwijk | 3bed7bb | 2013-02-19 07:46:04 +0000 | [diff] [blame] | 117 | fprintf(stderr, "tbf: duplicate \"mpu\" specification\n"); |
osdl.org!shemminger | aba5acd | 2004-04-15 20:56:59 +0000 | [diff] [blame] | 118 | return -1; |
| 119 | } |
| 120 | if (get_size(&mpu, *argv)) { |
Kees van Reeuwijk | 3bed7bb | 2013-02-19 07:46:04 +0000 | [diff] [blame] | 121 | explain1("mpu", *argv); |
osdl.org!shemminger | aba5acd | 2004-04-15 20:56:59 +0000 | [diff] [blame] | 122 | return -1; |
| 123 | } |
| 124 | ok++; |
| 125 | } else if (strcmp(*argv, "rate") == 0) { |
| 126 | NEXT_ARG(); |
Yang Yingliang | ddc6243 | 2013-11-26 09:55:35 +0800 | [diff] [blame] | 127 | if (rate64) { |
Kees van Reeuwijk | 3bed7bb | 2013-02-19 07:46:04 +0000 | [diff] [blame] | 128 | fprintf(stderr, "tbf: duplicate \"rate\" specification\n"); |
osdl.org!shemminger | aba5acd | 2004-04-15 20:56:59 +0000 | [diff] [blame] | 129 | return -1; |
| 130 | } |
Yang Yingliang | ddc6243 | 2013-11-26 09:55:35 +0800 | [diff] [blame] | 131 | if (get_rate64(&rate64, *argv)) { |
Kees van Reeuwijk | 3bed7bb | 2013-02-19 07:46:04 +0000 | [diff] [blame] | 132 | explain1("rate", *argv); |
osdl.org!shemminger | aba5acd | 2004-04-15 20:56:59 +0000 | [diff] [blame] | 133 | return -1; |
| 134 | } |
| 135 | ok++; |
| 136 | } else if (matches(*argv, "peakrate") == 0) { |
| 137 | NEXT_ARG(); |
Yang Yingliang | ddc6243 | 2013-11-26 09:55:35 +0800 | [diff] [blame] | 138 | if (prate64) { |
Kees van Reeuwijk | 3bed7bb | 2013-02-19 07:46:04 +0000 | [diff] [blame] | 139 | fprintf(stderr, "tbf: duplicate \"peakrate\" specification\n"); |
osdl.org!shemminger | aba5acd | 2004-04-15 20:56:59 +0000 | [diff] [blame] | 140 | return -1; |
| 141 | } |
Yang Yingliang | ddc6243 | 2013-11-26 09:55:35 +0800 | [diff] [blame] | 142 | if (get_rate64(&prate64, *argv)) { |
Kees van Reeuwijk | 3bed7bb | 2013-02-19 07:46:04 +0000 | [diff] [blame] | 143 | explain1("peakrate", *argv); |
osdl.org!shemminger | aba5acd | 2004-04-15 20:56:59 +0000 | [diff] [blame] | 144 | return -1; |
| 145 | } |
| 146 | ok++; |
Jesper Dangaard Brouer | 2c42579 | 2008-03-23 23:47:49 +0100 | [diff] [blame] | 147 | } else if (matches(*argv, "overhead") == 0) { |
| 148 | NEXT_ARG(); |
| 149 | if (overhead) { |
Kees van Reeuwijk | 3bed7bb | 2013-02-19 07:46:04 +0000 | [diff] [blame] | 150 | fprintf(stderr, "tbf: duplicate \"overhead\" specification\n"); |
Jesper Dangaard Brouer | 2c42579 | 2008-03-23 23:47:49 +0100 | [diff] [blame] | 151 | return -1; |
| 152 | } |
| 153 | if (get_u16(&overhead, *argv, 10)) { |
Kees van Reeuwijk | 3bed7bb | 2013-02-19 07:46:04 +0000 | [diff] [blame] | 154 | explain1("overhead", *argv); return -1; |
Jesper Dangaard Brouer | 2c42579 | 2008-03-23 23:47:49 +0100 | [diff] [blame] | 155 | } |
Jesper Dangaard Brouer | 292f29b | 2008-04-09 23:01:01 +0200 | [diff] [blame] | 156 | } else if (matches(*argv, "linklayer") == 0) { |
| 157 | NEXT_ARG(); |
| 158 | if (get_linklayer(&linklayer, *argv)) { |
Kees van Reeuwijk | 3bed7bb | 2013-02-19 07:46:04 +0000 | [diff] [blame] | 159 | explain1("linklayer", *argv); return -1; |
Jesper Dangaard Brouer | 292f29b | 2008-04-09 23:01:01 +0200 | [diff] [blame] | 160 | } |
osdl.org!shemminger | aba5acd | 2004-04-15 20:56:59 +0000 | [diff] [blame] | 161 | } else if (strcmp(*argv, "help") == 0) { |
| 162 | explain(); |
| 163 | return -1; |
| 164 | } else { |
Kees van Reeuwijk | 3bed7bb | 2013-02-19 07:46:04 +0000 | [diff] [blame] | 165 | fprintf(stderr, "tbf: unknown parameter \"%s\"\n", *argv); |
osdl.org!shemminger | aba5acd | 2004-04-15 20:56:59 +0000 | [diff] [blame] | 166 | explain(); |
| 167 | return -1; |
| 168 | } |
| 169 | argc--; argv++; |
| 170 | } |
| 171 | |
Stephen Hemminger | 32a121c | 2016-03-21 11:48:36 -0700 | [diff] [blame] | 172 | int verdict = 0; |
osdl.org!shemminger | aba5acd | 2004-04-15 20:56:59 +0000 | [diff] [blame] | 173 | |
Stephen Hemminger | 32a121c | 2016-03-21 11:48:36 -0700 | [diff] [blame] | 174 | /* Be nice to the user: try to emit all error messages in |
| 175 | * one go rather than reveal one more problem when a |
| 176 | * previous one has been fixed. |
| 177 | */ |
Yang Yingliang | ddc6243 | 2013-11-26 09:55:35 +0800 | [diff] [blame] | 178 | if (rate64 == 0) { |
Kees van Reeuwijk | 3bed7bb | 2013-02-19 07:46:04 +0000 | [diff] [blame] | 179 | fprintf(stderr, "tbf: the \"rate\" parameter is mandatory.\n"); |
| 180 | verdict = -1; |
| 181 | } |
| 182 | if (!buffer) { |
| 183 | fprintf(stderr, "tbf: the \"burst\" parameter is mandatory.\n"); |
| 184 | verdict = -1; |
osdl.org!shemminger | aba5acd | 2004-04-15 20:56:59 +0000 | [diff] [blame] | 185 | } |
Yang Yingliang | ddc6243 | 2013-11-26 09:55:35 +0800 | [diff] [blame] | 186 | if (prate64) { |
osdl.org!shemminger | aba5acd | 2004-04-15 20:56:59 +0000 | [diff] [blame] | 187 | if (!mtu) { |
Kees van Reeuwijk | 3bed7bb | 2013-02-19 07:46:04 +0000 | [diff] [blame] | 188 | fprintf(stderr, "tbf: when \"peakrate\" is specified, \"mtu\" must also be specified.\n"); |
| 189 | verdict = -1; |
osdl.org!shemminger | aba5acd | 2004-04-15 20:56:59 +0000 | [diff] [blame] | 190 | } |
| 191 | } |
| 192 | |
| 193 | if (opt.limit == 0 && latency == 0) { |
Kees van Reeuwijk | 3bed7bb | 2013-02-19 07:46:04 +0000 | [diff] [blame] | 194 | fprintf(stderr, "tbf: either \"limit\" or \"latency\" is required.\n"); |
| 195 | verdict = -1; |
osdl.org!shemminger | aba5acd | 2004-04-15 20:56:59 +0000 | [diff] [blame] | 196 | } |
| 197 | |
Stephen Hemminger | 32a121c | 2016-03-21 11:48:36 -0700 | [diff] [blame] | 198 | if (verdict != 0) { |
| 199 | explain(); |
| 200 | return verdict; |
| 201 | } |
Kees van Reeuwijk | 3bed7bb | 2013-02-19 07:46:04 +0000 | [diff] [blame] | 202 | |
Yang Yingliang | ddc6243 | 2013-11-26 09:55:35 +0800 | [diff] [blame] | 203 | opt.rate.rate = (rate64 >= (1ULL << 32)) ? ~0U : rate64; |
| 204 | opt.peakrate.rate = (prate64 >= (1ULL << 32)) ? ~0U : prate64; |
| 205 | |
osdl.org!shemminger | aba5acd | 2004-04-15 20:56:59 +0000 | [diff] [blame] | 206 | if (opt.limit == 0) { |
Yang Yingliang | ddc6243 | 2013-11-26 09:55:35 +0800 | [diff] [blame] | 207 | double lim = rate64*(double)latency/TIME_UNITS_PER_SEC + buffer; |
Stephen Hemminger | 32a121c | 2016-03-21 11:48:36 -0700 | [diff] [blame] | 208 | |
Yang Yingliang | ddc6243 | 2013-11-26 09:55:35 +0800 | [diff] [blame] | 209 | if (prate64) { |
| 210 | double lim2 = prate64*(double)latency/TIME_UNITS_PER_SEC + mtu; |
Stephen Hemminger | 32a121c | 2016-03-21 11:48:36 -0700 | [diff] [blame] | 211 | |
osdl.org!shemminger | aba5acd | 2004-04-15 20:56:59 +0000 | [diff] [blame] | 212 | if (lim2 < lim) |
| 213 | lim = lim2; |
| 214 | } |
| 215 | opt.limit = lim; |
| 216 | } |
| 217 | |
Jesper Dangaard Brouer | 2c42579 | 2008-03-23 23:47:49 +0100 | [diff] [blame] | 218 | opt.rate.mpu = mpu; |
| 219 | opt.rate.overhead = overhead; |
Jesper Dangaard Brouer | 292f29b | 2008-04-09 23:01:01 +0200 | [diff] [blame] | 220 | if (tc_calc_rtable(&opt.rate, rtab, Rcell_log, mtu, linklayer) < 0) { |
Kees van Reeuwijk | 3bed7bb | 2013-02-19 07:46:04 +0000 | [diff] [blame] | 221 | fprintf(stderr, "tbf: failed to calculate rate table.\n"); |
osdl.org!shemminger | aba5acd | 2004-04-15 20:56:59 +0000 | [diff] [blame] | 222 | return -1; |
| 223 | } |
| 224 | opt.buffer = tc_calc_xmittime(opt.rate.rate, buffer); |
Jesper Dangaard Brouer | d5f46f9 | 2007-09-05 10:47:47 +0200 | [diff] [blame] | 225 | |
osdl.org!shemminger | aba5acd | 2004-04-15 20:56:59 +0000 | [diff] [blame] | 226 | if (opt.peakrate.rate) { |
Jesper Dangaard Brouer | 2c42579 | 2008-03-23 23:47:49 +0100 | [diff] [blame] | 227 | opt.peakrate.mpu = mpu; |
| 228 | opt.peakrate.overhead = overhead; |
Jesper Dangaard Brouer | 292f29b | 2008-04-09 23:01:01 +0200 | [diff] [blame] | 229 | if (tc_calc_rtable(&opt.peakrate, ptab, Pcell_log, mtu, linklayer) < 0) { |
Kees van Reeuwijk | 3bed7bb | 2013-02-19 07:46:04 +0000 | [diff] [blame] | 230 | fprintf(stderr, "tbf: failed to calculate peak rate table.\n"); |
osdl.org!shemminger | aba5acd | 2004-04-15 20:56:59 +0000 | [diff] [blame] | 231 | return -1; |
| 232 | } |
| 233 | opt.mtu = tc_calc_xmittime(opt.peakrate.rate, mtu); |
osdl.org!shemminger | aba5acd | 2004-04-15 20:56:59 +0000 | [diff] [blame] | 234 | } |
| 235 | |
4!tgraf | 228569c | 2005-01-18 01:24:18 +0000 | [diff] [blame] | 236 | tail = NLMSG_TAIL(n); |
osdl.org!shemminger | aba5acd | 2004-04-15 20:56:59 +0000 | [diff] [blame] | 237 | addattr_l(n, 1024, TCA_OPTIONS, NULL, 0); |
| 238 | addattr_l(n, 2024, TCA_TBF_PARMS, &opt, sizeof(opt)); |
Yang Yingliang | a01de0a | 2014-01-16 11:09:13 +0800 | [diff] [blame] | 239 | addattr_l(n, 2124, TCA_TBF_BURST, &buffer, sizeof(buffer)); |
Yang Yingliang | ddc6243 | 2013-11-26 09:55:35 +0800 | [diff] [blame] | 240 | if (rate64 >= (1ULL << 32)) |
| 241 | addattr_l(n, 2124, TCA_TBF_RATE64, &rate64, sizeof(rate64)); |
osdl.org!shemminger | aba5acd | 2004-04-15 20:56:59 +0000 | [diff] [blame] | 242 | addattr_l(n, 3024, TCA_TBF_RTAB, rtab, 1024); |
Yang Yingliang | ddc6243 | 2013-11-26 09:55:35 +0800 | [diff] [blame] | 243 | if (opt.peakrate.rate) { |
| 244 | if (prate64 >= (1ULL << 32)) |
| 245 | addattr_l(n, 3124, TCA_TBF_PRATE64, &prate64, sizeof(prate64)); |
Yang Yingliang | a01de0a | 2014-01-16 11:09:13 +0800 | [diff] [blame] | 246 | addattr_l(n, 3224, TCA_TBF_PBURST, &mtu, sizeof(mtu)); |
osdl.org!shemminger | aba5acd | 2004-04-15 20:56:59 +0000 | [diff] [blame] | 247 | addattr_l(n, 4096, TCA_TBF_PTAB, ptab, 1024); |
Yang Yingliang | ddc6243 | 2013-11-26 09:55:35 +0800 | [diff] [blame] | 248 | } |
4!tgraf | 228569c | 2005-01-18 01:24:18 +0000 | [diff] [blame] | 249 | tail->rta_len = (void *) NLMSG_TAIL(n) - (void *) tail; |
osdl.org!shemminger | aba5acd | 2004-04-15 20:56:59 +0000 | [diff] [blame] | 250 | return 0; |
| 251 | } |
| 252 | |
| 253 | static int tbf_print_opt(struct qdisc_util *qu, FILE *f, struct rtattr *opt) |
| 254 | { |
Yang Yingliang | ddc6243 | 2013-11-26 09:55:35 +0800 | [diff] [blame] | 255 | struct rtattr *tb[TCA_TBF_MAX+1]; |
osdl.org!shemminger | aba5acd | 2004-04-15 20:56:59 +0000 | [diff] [blame] | 256 | struct tc_tbf_qopt *qopt; |
Jesper Dangaard Brouer | 3e92ff5 | 2013-08-30 14:02:10 +0200 | [diff] [blame] | 257 | unsigned int linklayer; |
osdl.org!shemminger | aba5acd | 2004-04-15 20:56:59 +0000 | [diff] [blame] | 258 | double buffer, mtu; |
| 259 | double latency; |
Yang Yingliang | ddc6243 | 2013-11-26 09:55:35 +0800 | [diff] [blame] | 260 | __u64 rate64 = 0, prate64 = 0; |
Stephen Hemminger | 32a121c | 2016-03-21 11:48:36 -0700 | [diff] [blame] | 261 | |
osdl.org!shemminger | aba5acd | 2004-04-15 20:56:59 +0000 | [diff] [blame] | 262 | SPRINT_BUF(b1); |
| 263 | SPRINT_BUF(b2); |
Jesper Dangaard Brouer | 3e92ff5 | 2013-08-30 14:02:10 +0200 | [diff] [blame] | 264 | SPRINT_BUF(b3); |
osdl.org!shemminger | aba5acd | 2004-04-15 20:56:59 +0000 | [diff] [blame] | 265 | |
| 266 | if (opt == NULL) |
| 267 | return 0; |
| 268 | |
Yang Yingliang | ddc6243 | 2013-11-26 09:55:35 +0800 | [diff] [blame] | 269 | parse_rtattr_nested(tb, TCA_TBF_MAX, opt); |
osdl.org!shemminger | aba5acd | 2004-04-15 20:56:59 +0000 | [diff] [blame] | 270 | |
| 271 | if (tb[TCA_TBF_PARMS] == NULL) |
| 272 | return -1; |
| 273 | |
| 274 | qopt = RTA_DATA(tb[TCA_TBF_PARMS]); |
| 275 | if (RTA_PAYLOAD(tb[TCA_TBF_PARMS]) < sizeof(*qopt)) |
| 276 | return -1; |
Yang Yingliang | ddc6243 | 2013-11-26 09:55:35 +0800 | [diff] [blame] | 277 | rate64 = qopt->rate.rate; |
| 278 | if (tb[TCA_TBF_RATE64] && |
| 279 | RTA_PAYLOAD(tb[TCA_TBF_RATE64]) >= sizeof(rate64)) |
| 280 | rate64 = rta_getattr_u64(tb[TCA_TBF_RATE64]); |
| 281 | fprintf(f, "rate %s ", sprint_rate(rate64, b1)); |
| 282 | buffer = tc_calc_xmitsize(rate64, qopt->buffer); |
osdl.org!shemminger | aba5acd | 2004-04-15 20:56:59 +0000 | [diff] [blame] | 283 | if (show_details) { |
| 284 | fprintf(f, "burst %s/%u mpu %s ", sprint_size(buffer, b1), |
| 285 | 1<<qopt->rate.cell_log, sprint_size(qopt->rate.mpu, b2)); |
| 286 | } else { |
| 287 | fprintf(f, "burst %s ", sprint_size(buffer, b1)); |
| 288 | } |
| 289 | if (show_raw) |
| 290 | fprintf(f, "[%08x] ", qopt->buffer); |
Yang Yingliang | ddc6243 | 2013-11-26 09:55:35 +0800 | [diff] [blame] | 291 | prate64 = qopt->peakrate.rate; |
| 292 | if (tb[TCA_TBF_PRATE64] && |
| 293 | RTA_PAYLOAD(tb[TCA_TBF_PRATE64]) >= sizeof(prate64)) |
| 294 | prate64 = rta_getattr_u64(tb[TCA_TBF_PRATE64]); |
| 295 | if (prate64) { |
| 296 | fprintf(f, "peakrate %s ", sprint_rate(prate64, b1)); |
osdl.org!shemminger | aba5acd | 2004-04-15 20:56:59 +0000 | [diff] [blame] | 297 | if (qopt->mtu || qopt->peakrate.mpu) { |
Yang Yingliang | ddc6243 | 2013-11-26 09:55:35 +0800 | [diff] [blame] | 298 | mtu = tc_calc_xmitsize(prate64, qopt->mtu); |
osdl.org!shemminger | aba5acd | 2004-04-15 20:56:59 +0000 | [diff] [blame] | 299 | if (show_details) { |
| 300 | fprintf(f, "mtu %s/%u mpu %s ", sprint_size(mtu, b1), |
| 301 | 1<<qopt->peakrate.cell_log, sprint_size(qopt->peakrate.mpu, b2)); |
| 302 | } else { |
| 303 | fprintf(f, "minburst %s ", sprint_size(mtu, b1)); |
| 304 | } |
| 305 | if (show_raw) |
| 306 | fprintf(f, "[%08x] ", qopt->mtu); |
| 307 | } |
| 308 | } |
| 309 | |
Yang Yingliang | ddc6243 | 2013-11-26 09:55:35 +0800 | [diff] [blame] | 310 | latency = TIME_UNITS_PER_SEC*(qopt->limit/(double)rate64) - tc_core_tick2time(qopt->buffer); |
| 311 | if (prate64) { |
| 312 | double lat2 = TIME_UNITS_PER_SEC*(qopt->limit/(double)prate64) - tc_core_tick2time(qopt->mtu); |
Stephen Hemminger | 32a121c | 2016-03-21 11:48:36 -0700 | [diff] [blame] | 313 | |
osdl.org!shemminger | aba5acd | 2004-04-15 20:56:59 +0000 | [diff] [blame] | 314 | if (lat2 > latency) |
| 315 | latency = lat2; |
| 316 | } |
Sergey V. Lobanov | 3ff10e8 | 2014-05-11 03:01:14 +0400 | [diff] [blame] | 317 | if (latency >= 0.0) |
| 318 | fprintf(f, "lat %s ", sprint_time(latency, b1)); |
| 319 | if (show_raw || latency < 0.0) |
| 320 | fprintf(f, "limit %s ", sprint_size(qopt->limit, b1)); |
osdl.org!shemminger | aba5acd | 2004-04-15 20:56:59 +0000 | [diff] [blame] | 321 | |
Jesper Dangaard Brouer | 2c42579 | 2008-03-23 23:47:49 +0100 | [diff] [blame] | 322 | if (qopt->rate.overhead) { |
| 323 | fprintf(f, "overhead %d", qopt->rate.overhead); |
| 324 | } |
Jesper Dangaard Brouer | 3e92ff5 | 2013-08-30 14:02:10 +0200 | [diff] [blame] | 325 | linklayer = (qopt->rate.linklayer & TC_LINKLAYER_MASK); |
| 326 | if (linklayer > TC_LINKLAYER_ETHERNET || show_details) |
| 327 | fprintf(f, "linklayer %s ", sprint_linklayer(linklayer, b3)); |
Jesper Dangaard Brouer | 2c42579 | 2008-03-23 23:47:49 +0100 | [diff] [blame] | 328 | |
osdl.org!shemminger | aba5acd | 2004-04-15 20:56:59 +0000 | [diff] [blame] | 329 | return 0; |
| 330 | } |
| 331 | |
net[shemminger]!kaber | 95812b5 | 2004-09-28 18:35:49 +0000 | [diff] [blame] | 332 | struct qdisc_util tbf_qdisc_util = { |
osdl.net!shemminger | f2f99e2 | 2004-08-31 17:45:21 +0000 | [diff] [blame] | 333 | .id = "tbf", |
| 334 | .parse_qopt = tbf_parse_opt, |
| 335 | .print_qopt = tbf_print_opt, |
osdl.org!shemminger | aba5acd | 2004-04-15 20:56:59 +0000 | [diff] [blame] | 336 | }; |