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.
9 * Authors: Alexey Kuznetsov, <kuznet@ms2.inr.ac.ru>
18 #include <sys/socket.h>
19 #include <netinet/in.h>
20 #include <arpa/inet.h>
26 static void explain(void)
28 fprintf(stderr
, "Usage: ... tbf limit BYTES burst BYTES[/BYTES] rate KBPS [ mtu BYTES[/BYTES] ]\n");
29 fprintf(stderr
, " [ peakrate KBPS ] [ latency TIME ]\n");
32 static void explain1(char *arg
)
34 fprintf(stderr
, "Illegal \"%s\"\n", arg
);
38 #define usage() return(-1)
40 static int tbf_parse_opt(struct qdisc_util
*qu
, int argc
, char **argv
, struct nlmsghdr
*n
)
43 struct tc_tbf_qopt opt
;
46 unsigned buffer
=0, mtu
=0, latency
=0;
50 int Rcell_log
=-1, Pcell_log
= -1;
53 memset(&opt
, 0, sizeof(opt
));
56 if (matches(*argv
, "limit") == 0) {
58 if (opt
.limit
|| latency
) {
59 fprintf(stderr
, "Double \"limit/latency\" spec\n");
62 if (get_size(&opt
.limit
, *argv
)) {
67 } else if (matches(*argv
, "latency") == 0) {
69 if (opt
.limit
|| latency
) {
70 fprintf(stderr
, "Double \"limit/latency\" spec\n");
73 if (get_usecs(&latency
, *argv
)) {
78 } else if (matches(*argv
, "burst") == 0 ||
79 strcmp(*argv
, "buffer") == 0 ||
80 strcmp(*argv
, "maxburst") == 0) {
83 fprintf(stderr
, "Double \"buffer/burst\" spec\n");
86 if (get_size_and_cell(&buffer
, &Rcell_log
, *argv
) < 0) {
91 } else if (strcmp(*argv
, "mtu") == 0 ||
92 strcmp(*argv
, "minburst") == 0) {
95 fprintf(stderr
, "Double \"mtu/minburst\" spec\n");
98 if (get_size_and_cell(&mtu
, &Pcell_log
, *argv
) < 0) {
103 } else if (strcmp(*argv
, "mpu") == 0) {
106 fprintf(stderr
, "Double \"mpu\" spec\n");
109 if (get_u8(&mpu
, *argv
, 10)) {
114 } else if (strcmp(*argv
, "rate") == 0) {
117 fprintf(stderr
, "Double \"rate\" spec\n");
120 if (get_rate(&opt
.rate
.rate
, *argv
)) {
125 } else if (strcmp(*argv
, "overhead") == 0) {
128 fprintf(stderr
, "Double \"overhead\" spec\n");
131 if (get_s8(&overhead
, *argv
, 10)) {
132 explain1("overhead");
136 } else if (strcmp(*argv
, "atm") == 0) {
139 } else if (matches(*argv
, "peakrate") == 0) {
141 if (opt
.peakrate
.rate
) {
142 fprintf(stderr
, "Double \"peakrate\" spec\n");
145 if (get_rate(&opt
.peakrate
.rate
, *argv
)) {
146 explain1("peakrate");
150 } else if (strcmp(*argv
, "help") == 0) {
154 fprintf(stderr
, "What is \"%s\"?\n", *argv
);
164 if (opt
.rate
.rate
== 0 || !buffer
) {
165 fprintf(stderr
, "Both \"rate\" and \"burst\" are required.\n");
168 if (opt
.peakrate
.rate
) {
170 fprintf(stderr
, "\"mtu\" is required, if \"peakrate\" is requested.\n");
175 if (opt
.limit
== 0 && latency
== 0) {
176 fprintf(stderr
, "Either \"limit\" or \"latency\" are required.\n");
180 if (opt
.limit
== 0) {
181 double lim
= opt
.rate
.rate
*(double)latency
/1000000 + buffer
;
182 if (opt
.peakrate
.rate
) {
183 double lim2
= opt
.peakrate
.rate
*(double)latency
/1000000 + mtu
;
190 tc_calc_ratespec(&opt
.rate
, rtab
, opt
.rate
.rate
, Rcell_log
, mtu
, mpu
, atm
, overhead
);
191 opt
.buffer
= tc_calc_xmittime(opt
.rate
.rate
, buffer
);
192 if (opt
.peakrate
.rate
) {
193 tc_calc_ratespec(&opt
.peakrate
, ptab
, opt
.peakrate
.rate
, Pcell_log
, mtu
, mpu
, atm
, overhead
);
194 opt
.mtu
= tc_calc_xmittime(opt
.peakrate
.rate
, mtu
);
197 tail
= NLMSG_TAIL(n
);
198 addattr_l(n
, 1024, TCA_OPTIONS
, NULL
, 0);
199 addattr_l(n
, 2024, TCA_TBF_PARMS
, &opt
, sizeof(opt
));
200 addattr_l(n
, 3024, TCA_TBF_RTAB
, rtab
, 1024);
201 if (opt
.peakrate
.rate
)
202 addattr_l(n
, 4096, TCA_TBF_PTAB
, ptab
, 1024);
203 tail
->rta_len
= (void *) NLMSG_TAIL(n
) - (void *) tail
;
207 static int tbf_print_opt(struct qdisc_util
*qu
, FILE *f
, struct rtattr
*opt
)
209 struct rtattr
*tb
[TCA_TBF_PTAB
+1];
210 struct tc_tbf_qopt
*qopt
;
219 parse_rtattr_nested(tb
, TCA_TBF_PTAB
, opt
);
221 if (tb
[TCA_TBF_PARMS
] == NULL
)
224 qopt
= RTA_DATA(tb
[TCA_TBF_PARMS
]);
225 if (RTA_PAYLOAD(tb
[TCA_TBF_PARMS
]) < sizeof(*qopt
))
227 fprintf(f
, "rate %s ", sprint_rate(qopt
->rate
.rate
, b1
));
228 buffer
= ((double)qopt
->rate
.rate
*tc_core_tick2usec(qopt
->buffer
))/1000000;
230 fprintf(f
, "burst %s/%u mpu %s overhead %d ", sprint_size(buffer
, b1
),
231 1<<qopt
->rate
.cell_log
,
232 sprint_size(qopt
->rate
.mpu
& 0xFF, b2
),
233 (__s8
)(qopt
->rate
.mpu
>> 8));
234 if (qopt
->rate
.feature
& 0x0001)
237 fprintf(f
, "burst %s ", sprint_size(buffer
, b1
));
240 fprintf(f
, "[%08x] ", qopt
->buffer
);
241 if (qopt
->peakrate
.rate
) {
242 fprintf(f
, "peakrate %s ", sprint_rate(qopt
->peakrate
.rate
, b1
));
243 if (qopt
->mtu
|| qopt
->peakrate
.mpu
) {
244 mtu
= ((double)qopt
->peakrate
.rate
*tc_core_tick2usec(qopt
->mtu
))/1000000;
246 fprintf(f
, "mtu %s/%u mpu %s overhead %d ", sprint_size(mtu
, b1
),
247 1<<qopt
->peakrate
.cell_log
,
248 sprint_size(qopt
->peakrate
.mpu
& 0xFF, b2
),
249 (__s8
)(qopt
->peakrate
.mpu
>> 8));
250 if (qopt
->peakrate
.feature
& 0x0001)
253 fprintf(f
, "minburst %s ", sprint_size(mtu
, b1
));
256 fprintf(f
, "[%08x] ", qopt
->mtu
);
261 fprintf(f
, "limit %s ", sprint_size(qopt
->limit
, b1
));
263 latency
= 1000000*(qopt
->limit
/(double)qopt
->rate
.rate
) - tc_core_tick2usec(qopt
->buffer
);
264 if (qopt
->peakrate
.rate
) {
265 double lat2
= 1000000*(qopt
->limit
/(double)qopt
->peakrate
.rate
) - tc_core_tick2usec(qopt
->mtu
);
269 fprintf(f
, "lat %s ", sprint_usecs(tc_core_tick2usec(latency
), b1
));
274 struct qdisc_util tbf_qdisc_util
= {
276 .parse_qopt
= tbf_parse_opt
,
277 .print_qopt
= tbf_print_opt
,