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c441bd4c SH |
1 | /* |
2 | * q_qfq.c QFQ. | |
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: Stephen Hemminger <shemminger@vyatta.com> | |
10 | * Fabio Checconi <fabio@gandalf.sssup.it> | |
11 | * | |
12 | */ | |
c441bd4c SH |
13 | #include <fcntl.h> |
14 | #include <sys/socket.h> | |
15 | #include <netinet/in.h> | |
16 | #include <arpa/inet.h> | |
17 | #include <string.h> | |
18 | ||
19 | #include "utils.h" | |
20 | #include "tc_util.h" | |
21 | ||
22 | static void explain(void) | |
23 | { | |
24 | fprintf(stderr, "Usage: ... qfq\n"); | |
25 | } | |
26 | ||
27 | static void explain1(const char *arg) | |
28 | { | |
29 | fprintf(stderr, "Illegal \"%s\"\n", arg); | |
30 | } | |
31 | ||
32 | static void explain_class(void) | |
33 | { | |
34 | fprintf(stderr, "Usage: ... qfq weight NUMBER maxpkt BYTES\n"); | |
35 | } | |
36 | ||
37 | static int qfq_parse_opt(struct qdisc_util *qu, int argc, char **argv, | |
927e3cfb | 38 | struct nlmsghdr *n, const char *dev) |
c441bd4c | 39 | { |
037660b3 SH |
40 | if (argc > 0) { |
41 | if (matches(*argv, "help") != 0) | |
c441bd4c | 42 | fprintf(stderr, "What is \"%s\"?\n", *argv); |
037660b3 SH |
43 | explain(); |
44 | return -1; | |
c441bd4c SH |
45 | } |
46 | ||
47 | return 0; | |
48 | } | |
49 | ||
50 | static int qfq_parse_class_opt(struct qdisc_util *qu, int argc, char **argv, | |
927e3cfb | 51 | struct nlmsghdr *n, const char *dev) |
c441bd4c SH |
52 | { |
53 | struct rtattr *tail; | |
54 | __u32 tmp; | |
55 | ||
c14f9d92 | 56 | tail = addattr_nest(n, 4096, TCA_OPTIONS); |
c441bd4c SH |
57 | |
58 | while (argc > 0) { | |
59 | if (matches(*argv, "weight") == 0) { | |
60 | NEXT_ARG(); | |
61 | if (get_u32(&tmp, *argv, 10)) { | |
62 | explain1("weight"); return -1; | |
63 | } | |
64 | addattr32(n, 4096, TCA_QFQ_WEIGHT, tmp); | |
65 | } else if (matches(*argv, "maxpkt") == 0) { | |
66 | NEXT_ARG(); | |
67 | if (get_u32(&tmp, *argv, 10)) { | |
68 | explain1("maxpkt"); return -1; | |
69 | } | |
70 | addattr32(n, 4096, TCA_QFQ_LMAX, tmp); | |
71 | } else if (strcmp(*argv, "help") == 0) { | |
72 | explain_class(); | |
73 | return -1; | |
74 | } else { | |
75 | fprintf(stderr, "What is \"%s\"?\n", *argv); | |
76 | explain_class(); | |
77 | return -1; | |
78 | } | |
79 | argc--; argv++; | |
80 | } | |
81 | ||
c14f9d92 | 82 | addattr_nest_end(n, tail); |
c441bd4c SH |
83 | |
84 | return 0; | |
85 | } | |
86 | ||
87 | static int qfq_print_opt(struct qdisc_util *qu, FILE *f, struct rtattr *opt) | |
88 | { | |
89 | struct rtattr *tb[TCA_QFQ_MAX + 1]; | |
90 | ||
91 | if (opt == NULL) | |
92 | return 0; | |
93 | ||
94 | parse_rtattr_nested(tb, TCA_QFQ_MAX, opt); | |
95 | ||
96 | if (tb[TCA_QFQ_WEIGHT]) { | |
97 | fprintf(f, "weight %u ", | |
ff24746c | 98 | rta_getattr_u32(tb[TCA_QFQ_WEIGHT])); |
c441bd4c SH |
99 | } |
100 | ||
101 | if (tb[TCA_QFQ_LMAX]) { | |
102 | fprintf(f, "maxpkt %u ", | |
ff24746c | 103 | rta_getattr_u32(tb[TCA_QFQ_LMAX])); |
c441bd4c SH |
104 | } |
105 | ||
106 | return 0; | |
107 | } | |
108 | ||
109 | struct qdisc_util qfq_qdisc_util = { | |
110 | .id = "qfq", | |
111 | .parse_qopt = qfq_parse_opt, | |
112 | .print_qopt = qfq_print_opt, | |
113 | .parse_copt = qfq_parse_class_opt, | |
114 | .print_copt = qfq_print_opt, | |
115 | }; |