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38#include <stdio.h>
39#include <stdlib.h>
40#include <unistd.h>
41#include <fcntl.h>
42#include <sys/socket.h>
43#include <netinet/in.h>
44#include <arpa/inet.h>
45#include <string.h>
46
47#include "utils.h"
48#include "tc_util.h"
49
50static void explain(void)
51{
52 fprintf(stderr,
53 "Usage: ... fq_codel [ limit PACKETS ] [ flows NUMBER ]\n"
54 "[ memory_limit BYTES ]\n"
55 "[ target TIME ] [ interval TIME ]\n"
56 "[ quantum BYTES ] [ [no]ecn ]\n"
57 "[ ce_threshold TIME ]\n"
58 "[ drop_batch SIZE ]\n");
59}
60
61static int fq_codel_parse_opt(struct qdisc_util *qu, int argc, char **argv,
62 struct nlmsghdr *n, const char *dev)
63{
64 unsigned int drop_batch = 0;
65 unsigned int limit = 0;
66 unsigned int flows = 0;
67 unsigned int target = 0;
68 unsigned int interval = 0;
69 unsigned int quantum = 0;
70 unsigned int ce_threshold = ~0U;
71 unsigned int memory = ~0U;
72 int ecn = -1;
73 struct rtattr *tail;
74
75 while (argc > 0) {
76 if (strcmp(*argv, "limit") == 0) {
77 NEXT_ARG();
78 if (get_unsigned(&limit, *argv, 0)) {
79 fprintf(stderr, "Illegal \"limit\"\n");
80 return -1;
81 }
82 } else if (strcmp(*argv, "flows") == 0) {
83 NEXT_ARG();
84 if (get_unsigned(&flows, *argv, 0)) {
85 fprintf(stderr, "Illegal \"flows\"\n");
86 return -1;
87 }
88 } else if (strcmp(*argv, "quantum") == 0) {
89 NEXT_ARG();
90 if (get_unsigned(&quantum, *argv, 0)) {
91 fprintf(stderr, "Illegal \"quantum\"\n");
92 return -1;
93 }
94 } else if (strcmp(*argv, "drop_batch") == 0) {
95 NEXT_ARG();
96 if (get_unsigned(&drop_batch, *argv, 0)) {
97 fprintf(stderr, "Illegal \"drop_batch\"\n");
98 return -1;
99 }
100 } else if (strcmp(*argv, "target") == 0) {
101 NEXT_ARG();
102 if (get_time(&target, *argv)) {
103 fprintf(stderr, "Illegal \"target\"\n");
104 return -1;
105 }
106 } else if (strcmp(*argv, "ce_threshold") == 0) {
107 NEXT_ARG();
108 if (get_time(&ce_threshold, *argv)) {
109 fprintf(stderr, "Illegal \"ce_threshold\"\n");
110 return -1;
111 }
112 } else if (strcmp(*argv, "memory_limit") == 0) {
113 NEXT_ARG();
114 if (get_size(&memory, *argv)) {
115 fprintf(stderr, "Illegal \"memory_limit\"\n");
116 return -1;
117 }
118 } else if (strcmp(*argv, "interval") == 0) {
119 NEXT_ARG();
120 if (get_time(&interval, *argv)) {
121 fprintf(stderr, "Illegal \"interval\"\n");
122 return -1;
123 }
124 } else if (strcmp(*argv, "ecn") == 0) {
125 ecn = 1;
126 } else if (strcmp(*argv, "noecn") == 0) {
127 ecn = 0;
128 } else if (strcmp(*argv, "help") == 0) {
129 explain();
130 return -1;
131 } else {
132 fprintf(stderr, "What is \"%s\"?\n", *argv);
133 explain();
134 return -1;
135 }
136 argc--; argv++;
137 }
138
139 tail = addattr_nest(n, 1024, TCA_OPTIONS);
140 if (limit)
141 addattr_l(n, 1024, TCA_FQ_CODEL_LIMIT, &limit, sizeof(limit));
142 if (flows)
143 addattr_l(n, 1024, TCA_FQ_CODEL_FLOWS, &flows, sizeof(flows));
144 if (quantum)
145 addattr_l(n, 1024, TCA_FQ_CODEL_QUANTUM, &quantum, sizeof(quantum));
146 if (interval)
147 addattr_l(n, 1024, TCA_FQ_CODEL_INTERVAL, &interval, sizeof(interval));
148 if (target)
149 addattr_l(n, 1024, TCA_FQ_CODEL_TARGET, &target, sizeof(target));
150 if (ecn != -1)
151 addattr_l(n, 1024, TCA_FQ_CODEL_ECN, &ecn, sizeof(ecn));
152 if (ce_threshold != ~0U)
153 addattr_l(n, 1024, TCA_FQ_CODEL_CE_THRESHOLD,
154 &ce_threshold, sizeof(ce_threshold));
155 if (memory != ~0U)
156 addattr_l(n, 1024, TCA_FQ_CODEL_MEMORY_LIMIT,
157 &memory, sizeof(memory));
158 if (drop_batch)
159 addattr_l(n, 1024, TCA_FQ_CODEL_DROP_BATCH_SIZE, &drop_batch, sizeof(drop_batch));
160
161 addattr_nest_end(n, tail);
162 return 0;
163}
164
165static int fq_codel_print_opt(struct qdisc_util *qu, FILE *f, struct rtattr *opt)
166{
167 struct rtattr *tb[TCA_FQ_CODEL_MAX + 1];
168 unsigned int limit;
169 unsigned int flows;
170 unsigned int interval;
171 unsigned int target;
172 unsigned int ecn;
173 unsigned int quantum;
174 unsigned int ce_threshold;
175 unsigned int memory_limit;
176 unsigned int drop_batch;
177
178 SPRINT_BUF(b1);
179
180 if (opt == NULL)
181 return 0;
182
183 parse_rtattr_nested(tb, TCA_FQ_CODEL_MAX, opt);
184
185 if (tb[TCA_FQ_CODEL_LIMIT] &&
186 RTA_PAYLOAD(tb[TCA_FQ_CODEL_LIMIT]) >= sizeof(__u32)) {
187 limit = rta_getattr_u32(tb[TCA_FQ_CODEL_LIMIT]);
188 print_uint(PRINT_ANY, "limit", "limit %up ", limit);
189 }
190 if (tb[TCA_FQ_CODEL_FLOWS] &&
191 RTA_PAYLOAD(tb[TCA_FQ_CODEL_FLOWS]) >= sizeof(__u32)) {
192 flows = rta_getattr_u32(tb[TCA_FQ_CODEL_FLOWS]);
193 print_uint(PRINT_ANY, "flows", "flows %u ", flows);
194 }
195 if (tb[TCA_FQ_CODEL_QUANTUM] &&
196 RTA_PAYLOAD(tb[TCA_FQ_CODEL_QUANTUM]) >= sizeof(__u32)) {
197 quantum = rta_getattr_u32(tb[TCA_FQ_CODEL_QUANTUM]);
198 print_uint(PRINT_ANY, "quantum", "quantum %u ", quantum);
199 }
200 if (tb[TCA_FQ_CODEL_TARGET] &&
201 RTA_PAYLOAD(tb[TCA_FQ_CODEL_TARGET]) >= sizeof(__u32)) {
202 target = rta_getattr_u32(tb[TCA_FQ_CODEL_TARGET]);
203 print_uint(PRINT_JSON, "target", NULL, target);
204 print_string(PRINT_FP, NULL, "target %s ",
205 sprint_time(target, b1));
206 }
207 if (tb[TCA_FQ_CODEL_CE_THRESHOLD] &&
208 RTA_PAYLOAD(tb[TCA_FQ_CODEL_CE_THRESHOLD]) >= sizeof(__u32)) {
209 ce_threshold = rta_getattr_u32(tb[TCA_FQ_CODEL_CE_THRESHOLD]);
210 print_uint(PRINT_JSON, "ce_threshold", NULL, ce_threshold);
211 print_string(PRINT_FP, NULL, "ce_threshold %s ",
212 sprint_time(ce_threshold, b1));
213 }
214 if (tb[TCA_FQ_CODEL_INTERVAL] &&
215 RTA_PAYLOAD(tb[TCA_FQ_CODEL_INTERVAL]) >= sizeof(__u32)) {
216 interval = rta_getattr_u32(tb[TCA_FQ_CODEL_INTERVAL]);
217 print_uint(PRINT_JSON, "interval", NULL, interval);
218 print_string(PRINT_FP, NULL, "interval %s ",
219 sprint_time(interval, b1));
220 }
221 if (tb[TCA_FQ_CODEL_MEMORY_LIMIT] &&
222 RTA_PAYLOAD(tb[TCA_FQ_CODEL_MEMORY_LIMIT]) >= sizeof(__u32)) {
223 memory_limit = rta_getattr_u32(tb[TCA_FQ_CODEL_MEMORY_LIMIT]);
224 print_size(PRINT_ANY, "memory_limit", "memory_limit %s ",
225 memory_limit);
226 }
227 if (tb[TCA_FQ_CODEL_ECN] &&
228 RTA_PAYLOAD(tb[TCA_FQ_CODEL_ECN]) >= sizeof(__u32)) {
229 ecn = rta_getattr_u32(tb[TCA_FQ_CODEL_ECN]);
230 if (ecn)
231 print_bool(PRINT_ANY, "ecn", "ecn ", true);
232 }
233 if (tb[TCA_FQ_CODEL_DROP_BATCH_SIZE] &&
234 RTA_PAYLOAD(tb[TCA_FQ_CODEL_DROP_BATCH_SIZE]) >= sizeof(__u32)) {
235 drop_batch = rta_getattr_u32(tb[TCA_FQ_CODEL_DROP_BATCH_SIZE]);
236 if (drop_batch)
237 print_uint(PRINT_ANY, "drop_batch", "drop_batch %u ", drop_batch);
238 }
239
240 return 0;
241}
242
243static int fq_codel_print_xstats(struct qdisc_util *qu, FILE *f,
244 struct rtattr *xstats)
245{
246 struct tc_fq_codel_xstats _st = {}, *st;
247
248 SPRINT_BUF(b1);
249
250 if (xstats == NULL)
251 return 0;
252
253 st = RTA_DATA(xstats);
254 if (RTA_PAYLOAD(xstats) < sizeof(*st)) {
255 memcpy(&_st, st, RTA_PAYLOAD(xstats));
256 st = &_st;
257 }
258 if (st->type == TCA_FQ_CODEL_XSTATS_QDISC) {
259 print_uint(PRINT_ANY, "maxpacket", " maxpacket %u",
260 st->qdisc_stats.maxpacket);
261 print_uint(PRINT_ANY, "drop_overlimit", " drop_overlimit %u",
262 st->qdisc_stats.drop_overlimit);
263 print_uint(PRINT_ANY, "new_flow_count", " new_flow_count %u",
264 st->qdisc_stats.new_flow_count);
265 print_uint(PRINT_ANY, "ecn_mark", " ecn_mark %u",
266 st->qdisc_stats.ecn_mark);
267 if (st->qdisc_stats.ce_mark)
268 print_uint(PRINT_ANY, "ce_mark", " ce_mark %u",
269 st->qdisc_stats.ce_mark);
270 if (st->qdisc_stats.memory_usage)
271 print_uint(PRINT_ANY, "memory_used", " memory_used %u",
272 st->qdisc_stats.memory_usage);
273 if (st->qdisc_stats.drop_overmemory)
274 print_uint(PRINT_ANY, "drop_overmemory", " drop_overmemory %u",
275 st->qdisc_stats.drop_overmemory);
276 print_nl();
277 print_uint(PRINT_ANY, "new_flows_len", " new_flows_len %u",
278 st->qdisc_stats.new_flows_len);
279 print_uint(PRINT_ANY, "old_flows_len", " old_flows_len %u",
280 st->qdisc_stats.old_flows_len);
281 }
282 if (st->type == TCA_FQ_CODEL_XSTATS_CLASS) {
283 print_int(PRINT_ANY, "deficit", " deficit %d",
284 st->class_stats.deficit);
285 print_uint(PRINT_ANY, "count", " count %u",
286 st->class_stats.count);
287 print_uint(PRINT_ANY, "lastcount", " lastcount %u",
288 st->class_stats.lastcount);
289 print_uint(PRINT_JSON, "ldelay", NULL,
290 st->class_stats.ldelay);
291 print_string(PRINT_FP, NULL, " ldelay %s",
292 sprint_time(st->class_stats.ldelay, b1));
293 if (st->class_stats.dropping) {
294 print_bool(PRINT_ANY, "dropping", " dropping", true);
295 print_int(PRINT_JSON, "drop_next", NULL,
296 st->class_stats.drop_next);
297 if (st->class_stats.drop_next < 0)
298 print_string(PRINT_FP, NULL, " drop_next -%s",
299 sprint_time(-st->class_stats.drop_next, b1));
300 else {
301 print_string(PRINT_FP, NULL, " drop_next %s",
302 sprint_time(st->class_stats.drop_next, b1));
303 }
304 }
305 }
306 return 0;
307
308}
309
310struct qdisc_util fq_codel_qdisc_util = {
311 .id = "fq_codel",
312 .parse_qopt = fq_codel_parse_opt,
313 .print_qopt = fq_codel_print_opt,
314 .print_xstats = fq_codel_print_xstats,
315};
316
