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aba5acdf SH |
1 | /* |
2 | * q_prio.c PRIO. | |
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 | * | |
aba5acdf SH |
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 | { | |
292ce96b | 28 | fprintf(stderr, "Usage: ... prio bands NUMBER priomap P1 P2...[multiqueue]\n"); |
aba5acdf SH |
29 | } |
30 | ||
aba5acdf SH |
31 | static int prio_parse_opt(struct qdisc_util *qu, int argc, char **argv, struct nlmsghdr *n) |
32 | { | |
aba5acdf SH |
33 | int pmap_mode = 0; |
34 | int idx = 0; | |
32a121cb | 35 | struct tc_prio_qopt opt = {3, { 1, 2, 2, 2, 1, 2, 0, 0, 1, 1, 1, 1, 1, 1, 1, 1 } }; |
292ce96b PW |
36 | struct rtattr *nest; |
37 | unsigned char mq = 0; | |
aba5acdf SH |
38 | |
39 | while (argc > 0) { | |
40 | if (strcmp(*argv, "bands") == 0) { | |
41 | if (pmap_mode) | |
42 | explain(); | |
43 | NEXT_ARG(); | |
44 | if (get_integer(&opt.bands, *argv, 10)) { | |
45 | fprintf(stderr, "Illegal \"bands\"\n"); | |
46 | return -1; | |
47 | } | |
aba5acdf SH |
48 | } else if (strcmp(*argv, "priomap") == 0) { |
49 | if (pmap_mode) { | |
50 | fprintf(stderr, "Error: duplicate priomap\n"); | |
51 | return -1; | |
52 | } | |
53 | pmap_mode = 1; | |
292ce96b PW |
54 | } else if (strcmp(*argv, "multiqueue") == 0) { |
55 | mq = 1; | |
aba5acdf SH |
56 | } else if (strcmp(*argv, "help") == 0) { |
57 | explain(); | |
58 | return -1; | |
59 | } else { | |
32a121cb SH |
60 | unsigned int band; |
61 | ||
aba5acdf SH |
62 | if (!pmap_mode) { |
63 | fprintf(stderr, "What is \"%s\"?\n", *argv); | |
64 | explain(); | |
65 | return -1; | |
66 | } | |
67 | if (get_unsigned(&band, *argv, 10)) { | |
68 | fprintf(stderr, "Illegal \"priomap\" element\n"); | |
69 | return -1; | |
70 | } | |
3c4f5456 | 71 | if (band >= opt.bands) { |
aba5acdf SH |
72 | fprintf(stderr, "\"priomap\" element is out of bands\n"); |
73 | return -1; | |
74 | } | |
75 | if (idx > TC_PRIO_MAX) { | |
76 | fprintf(stderr, "\"priomap\" index > TC_PRIO_MAX=%u\n", TC_PRIO_MAX); | |
77 | return -1; | |
78 | } | |
79 | opt.priomap[idx++] = band; | |
80 | } | |
81 | argc--; argv++; | |
82 | } | |
83 | ||
84 | /* | |
85 | if (pmap_mode) { | |
86 | for (; idx < TC_PRIO_MAX; idx++) | |
87 | opt.priomap[idx] = opt.priomap[TC_PRIO_BESTEFFORT]; | |
88 | } | |
89 | */ | |
292ce96b PW |
90 | nest = addattr_nest_compat(n, 1024, TCA_OPTIONS, &opt, sizeof(opt)); |
91 | if (mq) | |
92 | addattr_l(n, 1024, TCA_PRIO_MQ, NULL, 0); | |
93 | addattr_nest_compat_end(n, nest); | |
aba5acdf SH |
94 | return 0; |
95 | } | |
96 | ||
78d55b6e | 97 | int prio_print_opt(struct qdisc_util *qu, FILE *f, struct rtattr *opt) |
aba5acdf SH |
98 | { |
99 | int i; | |
100 | struct tc_prio_qopt *qopt; | |
292ce96b | 101 | struct rtattr *tb[TCA_PRIO_MAX+1]; |
aba5acdf SH |
102 | |
103 | if (opt == NULL) | |
104 | return 0; | |
105 | ||
292ce96b PW |
106 | if (parse_rtattr_nested_compat(tb, TCA_PRIO_MAX, opt, qopt, |
107 | sizeof(*qopt))) | |
32a121cb | 108 | return -1; |
292ce96b | 109 | |
aba5acdf | 110 | fprintf(f, "bands %u priomap ", qopt->bands); |
32a121cb | 111 | for (i = 0; i <= TC_PRIO_MAX; i++) |
aba5acdf | 112 | fprintf(f, " %d", qopt->priomap[i]); |
292ce96b PW |
113 | |
114 | if (tb[TCA_PRIO_MQ]) | |
115 | fprintf(f, " multiqueue: %s ", | |
ff24746c | 116 | rta_getattr_u8(tb[TCA_PRIO_MQ]) ? "on" : "off"); |
292ce96b | 117 | |
aba5acdf SH |
118 | return 0; |
119 | } | |
120 | ||
95812b56 | 121 | struct qdisc_util prio_qdisc_util = { |
32a121cb | 122 | .id = "prio", |
f2f99e2e SH |
123 | .parse_qopt = prio_parse_opt, |
124 | .print_qopt = prio_print_opt, | |
aba5acdf | 125 | }; |