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aba5acdf SH |
1 | /* |
2 | * q_fifo.c FIFO. | |
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 | * | |
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 | { | |
f703129d | 28 | fprintf(stderr, "Usage: ... <[p|b]fifo | pfifo_head_drop> [ limit NUMBER ]\n"); |
aba5acdf SH |
29 | } |
30 | ||
aba5acdf SH |
31 | static int fifo_parse_opt(struct qdisc_util *qu, int argc, char **argv, struct nlmsghdr *n) |
32 | { | |
33 | int ok=0; | |
34 | struct tc_fifo_qopt opt; | |
35 | memset(&opt, 0, sizeof(opt)); | |
36 | ||
37 | while (argc > 0) { | |
38 | if (strcmp(*argv, "limit") == 0) { | |
39 | NEXT_ARG(); | |
40 | if (get_size(&opt.limit, *argv)) { | |
3bed7bb7 | 41 | fprintf(stderr, "%s: Illegal value for \"limit\": \"%s\"\n", qu->id, *argv); |
aba5acdf SH |
42 | return -1; |
43 | } | |
44 | ok++; | |
45 | } else if (strcmp(*argv, "help") == 0) { | |
46 | explain(); | |
47 | return -1; | |
48 | } else { | |
3bed7bb7 | 49 | fprintf(stderr, "%s: unknown parameter \"%s\"\n", qu->id, *argv); |
aba5acdf SH |
50 | explain(); |
51 | return -1; | |
52 | } | |
53 | argc--; argv++; | |
54 | } | |
55 | ||
56 | if (ok) | |
57 | addattr_l(n, 1024, TCA_OPTIONS, &opt, sizeof(opt)); | |
58 | return 0; | |
59 | } | |
60 | ||
61 | static int fifo_print_opt(struct qdisc_util *qu, FILE *f, struct rtattr *opt) | |
62 | { | |
63 | struct tc_fifo_qopt *qopt; | |
64 | ||
65 | if (opt == NULL) | |
66 | return 0; | |
67 | ||
68 | if (RTA_PAYLOAD(opt) < sizeof(*qopt)) | |
69 | return -1; | |
70 | qopt = RTA_DATA(opt); | |
71 | if (strcmp(qu->id, "bfifo") == 0) { | |
72 | SPRINT_BUF(b1); | |
73 | fprintf(f, "limit %s", sprint_size(qopt->limit, b1)); | |
74 | } else | |
75 | fprintf(f, "limit %up", qopt->limit); | |
76 | return 0; | |
77 | } | |
78 | ||
aba5acdf | 79 | |
95812b56 | 80 | struct qdisc_util bfifo_qdisc_util = { |
f2f99e2e SH |
81 | .id = "bfifo", |
82 | .parse_qopt = fifo_parse_opt, | |
83 | .print_qopt = fifo_print_opt, | |
aba5acdf SH |
84 | }; |
85 | ||
95812b56 | 86 | struct qdisc_util pfifo_qdisc_util = { |
f2f99e2e SH |
87 | .id = "pfifo", |
88 | .parse_qopt = fifo_parse_opt, | |
89 | .print_qopt = fifo_print_opt, | |
aba5acdf | 90 | }; |
78d55b6e | 91 | |
f703129d HPP |
92 | struct qdisc_util pfifo_head_drop_qdisc_util = { |
93 | .id = "pfifo_head_drop", | |
94 | .parse_qopt = fifo_parse_opt, | |
95 | .print_qopt = fifo_print_opt, | |
96 | }; | |
97 | ||
78d55b6e | 98 | extern int prio_print_opt(struct qdisc_util *qu, FILE *f, struct rtattr *opt); |
95812b56 | 99 | struct qdisc_util pfifo_fast_qdisc_util = { |
f2f99e2e SH |
100 | .id = "pfifo_fast", |
101 | .print_qopt = prio_print_opt, | |
78d55b6e | 102 | }; |