]>
Commit | Line | Data |
---|---|---|
839c8456 JK |
1 | /* |
2 | * tc_stab.c "tc qdisc ... stab *". | |
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: Jussi Kivilinna, <jussi.kivilinna@mbnet.fi> | |
10 | * | |
11 | */ | |
12 | ||
13 | #include <stdio.h> | |
14 | #include <stdlib.h> | |
15 | #include <unistd.h> | |
839c8456 JK |
16 | #include <fcntl.h> |
17 | #include <math.h> | |
18 | #include <sys/socket.h> | |
dd9cc0ee | 19 | #include <sys/param.h> |
839c8456 JK |
20 | #include <netinet/in.h> |
21 | #include <arpa/inet.h> | |
22 | #include <string.h> | |
23 | #include <malloc.h> | |
24 | ||
25 | #include "utils.h" | |
26 | #include "tc_util.h" | |
27 | #include "tc_core.h" | |
28 | #include "tc_common.h" | |
29 | ||
30 | static void stab_help(void) | |
31 | { | |
32 | fprintf(stderr, | |
32a121cb | 33 | "Usage: ... stab [ mtu BYTES ] [ tsize SLOTS ] [ mpu BYTES ]\n" |
839c8456 JK |
34 | " [ overhead BYTES ] [ linklayer TYPE ] ...\n" |
35 | " mtu : max packet size we create rate map for {2047}\n" | |
36 | " tsize : how many slots should size table have {512}\n" | |
37 | " mpu : minimum packet size used in rate computations\n" | |
38 | " overhead : per-packet size overhead used in rate computations\n" | |
39 | " linklayer : adapting to a linklayer e.g. atm\n" | |
40 | "Example: ... stab overhead 20 linklayer atm\n"); | |
41 | ||
839c8456 JK |
42 | } |
43 | ||
44 | int check_size_table_opts(struct tc_sizespec *s) | |
45 | { | |
46 | return s->linklayer >= LINKLAYER_ETHERNET || s->mpu != 0 || | |
47 | s->overhead != 0; | |
48 | } | |
49 | ||
50 | int parse_size_table(int *argcp, char ***argvp, struct tc_sizespec *sp) | |
51 | { | |
52 | char **argv = *argvp; | |
53 | int argc = *argcp; | |
d17b136f | 54 | struct tc_sizespec s = {}; |
839c8456 JK |
55 | |
56 | NEXT_ARG(); | |
57 | if (matches(*argv, "help") == 0) { | |
58 | stab_help(); | |
59 | return -1; | |
60 | } | |
61 | while (argc > 0) { | |
62 | if (matches(*argv, "mtu") == 0) { | |
63 | NEXT_ARG(); | |
64 | if (s.mtu) | |
65 | duparg("mtu", *argv); | |
bcb4a7aa | 66 | if (get_u32(&s.mtu, *argv, 10)) |
839c8456 | 67 | invarg("mtu", "invalid mtu"); |
839c8456 JK |
68 | } else if (matches(*argv, "mpu") == 0) { |
69 | NEXT_ARG(); | |
70 | if (s.mpu) | |
71 | duparg("mpu", *argv); | |
bcb4a7aa | 72 | if (get_u32(&s.mpu, *argv, 10)) |
839c8456 | 73 | invarg("mpu", "invalid mpu"); |
839c8456 JK |
74 | } else if (matches(*argv, "overhead") == 0) { |
75 | NEXT_ARG(); | |
76 | if (s.overhead) | |
77 | duparg("overhead", *argv); | |
bcb4a7aa | 78 | if (get_integer(&s.overhead, *argv, 10)) |
839c8456 | 79 | invarg("overhead", "invalid overhead"); |
839c8456 JK |
80 | } else if (matches(*argv, "tsize") == 0) { |
81 | NEXT_ARG(); | |
82 | if (s.tsize) | |
83 | duparg("tsize", *argv); | |
bcb4a7aa | 84 | if (get_u32(&s.tsize, *argv, 10)) |
839c8456 | 85 | invarg("tsize", "invalid table size"); |
839c8456 JK |
86 | } else if (matches(*argv, "linklayer") == 0) { |
87 | NEXT_ARG(); | |
88 | if (s.linklayer != LINKLAYER_UNSPEC) | |
89 | duparg("linklayer", *argv); | |
bcb4a7aa | 90 | if (get_linklayer(&s.linklayer, *argv)) |
839c8456 | 91 | invarg("linklayer", "invalid linklayer"); |
839c8456 JK |
92 | } else |
93 | break; | |
94 | argc--; argv++; | |
95 | } | |
96 | ||
97 | if (!check_size_table_opts(&s)) | |
98 | return -1; | |
99 | ||
100 | *sp = s; | |
101 | *argvp = argv; | |
102 | *argcp = argc; | |
103 | return 0; | |
104 | } | |
105 | ||
106 | void print_size_table(FILE *fp, const char *prefix, struct rtattr *rta) | |
107 | { | |
108 | struct rtattr *tb[TCA_STAB_MAX + 1]; | |
32a121cb | 109 | |
839c8456 JK |
110 | SPRINT_BUF(b1); |
111 | ||
112 | parse_rtattr_nested(tb, TCA_STAB_MAX, rta); | |
113 | ||
114 | if (tb[TCA_STAB_BASE]) { | |
115 | struct tc_sizespec s = {0}; | |
32a121cb | 116 | |
839c8456 JK |
117 | memcpy(&s, RTA_DATA(tb[TCA_STAB_BASE]), |
118 | MIN(RTA_PAYLOAD(tb[TCA_STAB_BASE]), sizeof(s))); | |
119 | ||
120 | fprintf(fp, "%s", prefix); | |
121 | if (s.linklayer) | |
122 | fprintf(fp, "linklayer %s ", | |
123 | sprint_linklayer(s.linklayer, b1)); | |
124 | if (s.overhead) | |
125 | fprintf(fp, "overhead %d ", s.overhead); | |
126 | if (s.mpu) | |
127 | fprintf(fp, "mpu %u ", s.mpu); | |
128 | if (s.mtu) | |
129 | fprintf(fp, "mtu %u ", s.mtu); | |
130 | if (s.tsize) | |
131 | fprintf(fp, "tsize %u ", s.tsize); | |
132 | } | |
133 | ||
134 | #if 0 | |
135 | if (tb[TCA_STAB_DATA]) { | |
32a121cb | 136 | unsigned int i, j, dlen; |
839c8456 | 137 | __u16 *data = RTA_DATA(tb[TCA_STAB_DATA]); |
32a121cb | 138 | |
839c8456 JK |
139 | dlen = RTA_PAYLOAD(tb[TCA_STAB_DATA]) / sizeof(__u16); |
140 | ||
141 | fprintf(fp, "\n%sstab data:", prefix); | |
142 | for (i = 0; i < dlen/12; i++) { | |
143 | fprintf(fp, "\n%s %3u:", prefix, i * 12); | |
144 | for (j = 0; i * 12 + j < dlen; j++) | |
145 | fprintf(fp, " %05x", data[i * 12 + j]); | |
146 | } | |
147 | } | |
148 | #endif | |
149 | } |