1
2
3
4
5
6
7
8
9
10
11
12
13#include <stdio.h>
14#include <stdlib.h>
15#include <unistd.h>
16#include <fcntl.h>
17#include <sys/socket.h>
18#include <netinet/in.h>
19#include <arpa/inet.h>
20#include <string.h>
21
22#include "utils.h"
23#include "tc_util.h"
24
25static void explain(void)
26{
27 fprintf(stderr,
28 "Usage: ... fq_pie [ limit PACKETS ] [ flows NUMBER ]\n"
29 " [ target TIME ] [ tupdate TIME ]\n"
30 " [ alpha NUMBER ] [ beta NUMBER ]\n"
31 " [ quantum BYTES ] [ memory_limit BYTES ]\n"
32 " [ ecn_prob PERCENTAGE ] [ [no]ecn ]\n"
33 " [ [no]bytemode ] [ [no_]dq_rate_estimator ]\n");
34}
35
36#define ALPHA_MAX 32
37#define BETA_MAX 32
38
39static int fq_pie_parse_opt(struct qdisc_util *qu, int argc, char **argv,
40 struct nlmsghdr *n, const char *dev)
41{
42 unsigned int limit = 0;
43 unsigned int flows = 0;
44 unsigned int target = 0;
45 unsigned int tupdate = 0;
46 unsigned int alpha = 0;
47 unsigned int beta = 0;
48 unsigned int quantum = 0;
49 unsigned int memory_limit = 0;
50 unsigned int ecn_prob = 0;
51 int ecn = -1;
52 int bytemode = -1;
53 int dq_rate_estimator = -1;
54 struct rtattr *tail;
55
56 while (argc > 0) {
57 if (strcmp(*argv, "limit") == 0) {
58 NEXT_ARG();
59 if (get_unsigned(&limit, *argv, 0)) {
60 fprintf(stderr, "Illegal \"limit\"\n");
61 return -1;
62 }
63 } else if (strcmp(*argv, "flows") == 0) {
64 NEXT_ARG();
65 if (get_unsigned(&flows, *argv, 0)) {
66 fprintf(stderr, "Illegal \"flows\"\n");
67 return -1;
68 }
69 } else if (strcmp(*argv, "target") == 0) {
70 NEXT_ARG();
71 if (get_time(&target, *argv)) {
72 fprintf(stderr, "Illegal \"target\"\n");
73 return -1;
74 }
75 } else if (strcmp(*argv, "tupdate") == 0) {
76 NEXT_ARG();
77 if (get_time(&tupdate, *argv)) {
78 fprintf(stderr, "Illegal \"tupdate\"\n");
79 return -1;
80 }
81 } else if (strcmp(*argv, "alpha") == 0) {
82 NEXT_ARG();
83 if (get_unsigned(&alpha, *argv, 0) ||
84 alpha > ALPHA_MAX) {
85 fprintf(stderr, "Illegal \"alpha\"\n");
86 return -1;
87 }
88 } else if (strcmp(*argv, "beta") == 0) {
89 NEXT_ARG();
90 if (get_unsigned(&beta, *argv, 0) ||
91 beta > BETA_MAX) {
92 fprintf(stderr, "Illegal \"beta\"\n");
93 return -1;
94 }
95 } else if (strcmp(*argv, "quantum") == 0) {
96 NEXT_ARG();
97 if (get_size(&quantum, *argv)) {
98 fprintf(stderr, "Illegal \"quantum\"\n");
99 return -1;
100 }
101 } else if (strcmp(*argv, "memory_limit") == 0) {
102 NEXT_ARG();
103 if (get_size(&memory_limit, *argv)) {
104 fprintf(stderr, "Illegal \"memory_limit\"\n");
105 return -1;
106 }
107 } else if (strcmp(*argv, "ecn_prob") == 0) {
108 NEXT_ARG();
109 if (get_unsigned(&ecn_prob, *argv, 0) ||
110 ecn_prob >= 100) {
111 fprintf(stderr, "Illegal \"ecn_prob\"\n");
112 return -1;
113 }
114 } else if (strcmp(*argv, "ecn") == 0) {
115 ecn = 1;
116 } else if (strcmp(*argv, "noecn") == 0) {
117 ecn = 0;
118 } else if (strcmp(*argv, "bytemode") == 0) {
119 bytemode = 1;
120 } else if (strcmp(*argv, "nobytemode") == 0) {
121 bytemode = 0;
122 } else if (strcmp(*argv, "dq_rate_estimator") == 0) {
123 dq_rate_estimator = 1;
124 } else if (strcmp(*argv, "no_dq_rate_estimator") == 0) {
125 dq_rate_estimator = 0;
126 } else if (strcmp(*argv, "help") == 0) {
127 explain();
128 return -1;
129 } else {
130 fprintf(stderr, "What is \"%s\"?\n", *argv);
131 explain();
132 return -1;
133 }
134
135 argc--;
136 argv++;
137 }
138
139 tail = addattr_nest(n, 1024, TCA_OPTIONS | NLA_F_NESTED);
140 if (limit)
141 addattr_l(n, 1024, TCA_FQ_PIE_LIMIT, &limit, sizeof(limit));
142 if (flows)
143 addattr_l(n, 1024, TCA_FQ_PIE_FLOWS, &flows, sizeof(flows));
144 if (target)
145 addattr_l(n, 1024, TCA_FQ_PIE_TARGET, &target, sizeof(target));
146 if (tupdate)
147 addattr_l(n, 1024, TCA_FQ_PIE_TUPDATE, &tupdate,
148 sizeof(tupdate));
149 if (alpha)
150 addattr_l(n, 1024, TCA_FQ_PIE_ALPHA, &alpha, sizeof(alpha));
151 if (beta)
152 addattr_l(n, 1024, TCA_FQ_PIE_BETA, &beta, sizeof(beta));
153 if (quantum)
154 addattr_l(n, 1024, TCA_FQ_PIE_QUANTUM, &quantum,
155 sizeof(quantum));
156 if (memory_limit)
157 addattr_l(n, 1024, TCA_FQ_PIE_MEMORY_LIMIT, &memory_limit,
158 sizeof(memory_limit));
159 if (ecn_prob)
160 addattr_l(n, 1024, TCA_FQ_PIE_ECN_PROB, &ecn_prob,
161 sizeof(ecn_prob));
162 if (ecn != -1)
163 addattr_l(n, 1024, TCA_FQ_PIE_ECN, &ecn, sizeof(ecn));
164 if (bytemode != -1)
165 addattr_l(n, 1024, TCA_FQ_PIE_BYTEMODE, &bytemode,
166 sizeof(bytemode));
167 if (dq_rate_estimator != -1)
168 addattr_l(n, 1024, TCA_FQ_PIE_DQ_RATE_ESTIMATOR,
169 &dq_rate_estimator, sizeof(dq_rate_estimator));
170 addattr_nest_end(n, tail);
171
172 return 0;
173}
174
175static int fq_pie_print_opt(struct qdisc_util *qu, FILE *f, struct rtattr *opt)
176{
177 struct rtattr *tb[TCA_FQ_PIE_MAX + 1];
178 unsigned int limit = 0;
179 unsigned int flows = 0;
180 unsigned int target = 0;
181 unsigned int tupdate = 0;
182 unsigned int alpha = 0;
183 unsigned int beta = 0;
184 unsigned int quantum = 0;
185 unsigned int memory_limit = 0;
186 unsigned int ecn_prob = 0;
187 int ecn = -1;
188 int bytemode = -1;
189 int dq_rate_estimator = -1;
190
191 SPRINT_BUF(b1);
192
193 if (opt == NULL)
194 return 0;
195
196 parse_rtattr_nested(tb, TCA_FQ_PIE_MAX, opt);
197
198 if (tb[TCA_FQ_PIE_LIMIT] &&
199 RTA_PAYLOAD(tb[TCA_FQ_PIE_LIMIT]) >= sizeof(__u32)) {
200 limit = rta_getattr_u32(tb[TCA_FQ_PIE_LIMIT]);
201 print_uint(PRINT_ANY, "limit", "limit %up ", limit);
202 }
203 if (tb[TCA_FQ_PIE_FLOWS] &&
204 RTA_PAYLOAD(tb[TCA_FQ_PIE_FLOWS]) >= sizeof(__u32)) {
205 flows = rta_getattr_u32(tb[TCA_FQ_PIE_FLOWS]);
206 print_uint(PRINT_ANY, "flows", "flows %u ", flows);
207 }
208 if (tb[TCA_FQ_PIE_TARGET] &&
209 RTA_PAYLOAD(tb[TCA_FQ_PIE_TARGET]) >= sizeof(__u32)) {
210 target = rta_getattr_u32(tb[TCA_FQ_PIE_TARGET]);
211 print_uint(PRINT_JSON, "target", NULL, target);
212 print_string(PRINT_FP, NULL, "target %s ",
213 sprint_time(target, b1));
214 }
215 if (tb[TCA_FQ_PIE_TUPDATE] &&
216 RTA_PAYLOAD(tb[TCA_FQ_PIE_TUPDATE]) >= sizeof(__u32)) {
217 tupdate = rta_getattr_u32(tb[TCA_FQ_PIE_TUPDATE]);
218 print_uint(PRINT_JSON, "tupdate", NULL, tupdate);
219 print_string(PRINT_FP, NULL, "tupdate %s ",
220 sprint_time(tupdate, b1));
221 }
222 if (tb[TCA_FQ_PIE_ALPHA] &&
223 RTA_PAYLOAD(tb[TCA_FQ_PIE_ALPHA]) >= sizeof(__u32)) {
224 alpha = rta_getattr_u32(tb[TCA_FQ_PIE_ALPHA]);
225 print_uint(PRINT_ANY, "alpha", "alpha %u ", alpha);
226 }
227 if (tb[TCA_FQ_PIE_BETA] &&
228 RTA_PAYLOAD(tb[TCA_FQ_PIE_BETA]) >= sizeof(__u32)) {
229 beta = rta_getattr_u32(tb[TCA_FQ_PIE_BETA]);
230 print_uint(PRINT_ANY, "beta", "beta %u ", beta);
231 }
232 if (tb[TCA_FQ_PIE_QUANTUM] &&
233 RTA_PAYLOAD(tb[TCA_FQ_PIE_QUANTUM]) >= sizeof(__u32)) {
234 quantum = rta_getattr_u32(tb[TCA_FQ_PIE_QUANTUM]);
235 print_uint(PRINT_JSON, "quantum", NULL, quantum);
236 print_string(PRINT_FP, NULL, "quantum %s ",
237 sprint_size(quantum, b1));
238 }
239 if (tb[TCA_FQ_PIE_MEMORY_LIMIT] &&
240 RTA_PAYLOAD(tb[TCA_FQ_PIE_MEMORY_LIMIT]) >= sizeof(__u32)) {
241 memory_limit = rta_getattr_u32(tb[TCA_FQ_PIE_MEMORY_LIMIT]);
242 print_uint(PRINT_JSON, "memory_limit", NULL, memory_limit);
243 print_string(PRINT_FP, NULL, "memory_limit %s ",
244 sprint_size(memory_limit, b1));
245 }
246 if (tb[TCA_FQ_PIE_ECN_PROB] &&
247 RTA_PAYLOAD(tb[TCA_FQ_PIE_ECN_PROB]) >= sizeof(__u32)) {
248 ecn_prob = rta_getattr_u32(tb[TCA_FQ_PIE_ECN_PROB]);
249 print_uint(PRINT_ANY, "ecn_prob", "ecn_prob %u ", ecn_prob);
250 }
251 if (tb[TCA_FQ_PIE_ECN] &&
252 RTA_PAYLOAD(tb[TCA_FQ_PIE_ECN]) >= sizeof(__u32)) {
253 ecn = rta_getattr_u32(tb[TCA_FQ_PIE_ECN]);
254 if (ecn)
255 print_bool(PRINT_ANY, "ecn", "ecn ", true);
256 }
257 if (tb[TCA_FQ_PIE_BYTEMODE] &&
258 RTA_PAYLOAD(tb[TCA_FQ_PIE_BYTEMODE]) >= sizeof(__u32)) {
259 bytemode = rta_getattr_u32(tb[TCA_FQ_PIE_BYTEMODE]);
260 if (bytemode)
261 print_bool(PRINT_ANY, "bytemode", "bytemode ", true);
262 }
263 if (tb[TCA_FQ_PIE_DQ_RATE_ESTIMATOR] &&
264 RTA_PAYLOAD(tb[TCA_FQ_PIE_DQ_RATE_ESTIMATOR]) >= sizeof(__u32)) {
265 dq_rate_estimator =
266 rta_getattr_u32(tb[TCA_FQ_PIE_DQ_RATE_ESTIMATOR]);
267 if (dq_rate_estimator)
268 print_bool(PRINT_ANY, "dq_rate_estimator",
269 "dq_rate_estimator ", true);
270 }
271
272 return 0;
273}
274
275static int fq_pie_print_xstats(struct qdisc_util *qu, FILE *f,
276 struct rtattr *xstats)
277{
278 struct tc_fq_pie_xstats _st = {}, *st;
279
280 if (xstats == NULL)
281 return 0;
282
283 st = RTA_DATA(xstats);
284 if (RTA_PAYLOAD(xstats) < sizeof(*st)) {
285 memcpy(&_st, st, RTA_PAYLOAD(xstats));
286 st = &_st;
287 }
288
289 print_uint(PRINT_ANY, "pkts_in", " pkts_in %u",
290 st->packets_in);
291 print_uint(PRINT_ANY, "overlimit", " overlimit %u",
292 st->overlimit);
293 print_uint(PRINT_ANY, "overmemory", " overmemory %u",
294 st->overmemory);
295 print_uint(PRINT_ANY, "dropped", " dropped %u",
296 st->dropped);
297 print_uint(PRINT_ANY, "ecn_mark", " ecn_mark %u",
298 st->ecn_mark);
299 print_nl();
300 print_uint(PRINT_ANY, "new_flow_count", " new_flow_count %u",
301 st->new_flow_count);
302 print_uint(PRINT_ANY, "new_flows_len", " new_flows_len %u",
303 st->new_flows_len);
304 print_uint(PRINT_ANY, "old_flows_len", " old_flows_len %u",
305 st->old_flows_len);
306 print_uint(PRINT_ANY, "memory_used", " memory_used %u",
307 st->memory_usage);
308
309 return 0;
310
311}
312
313struct qdisc_util fq_pie_qdisc_util = {
314 .id = "fq_pie",
315 .parse_qopt = fq_pie_parse_opt,
316 .print_qopt = fq_pie_print_opt,
317 .print_xstats = fq_pie_print_xstats,
318};
319
