1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
|
/*
* src/nl-qdisc-dump.c Dump qdisc attributes
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation version 2.1
* of the License.
*
* Copyright (c) 2003-2006 Thomas Graf <tgraf@suug.ch>
*/
#include "utils.h"
#include <netlink/route/sch/fifo.h>
#include <netlink/route/sch/prio.h>
static void print_usage(void)
{
printf(
"Usage: nl-qdisc-add <ifindex> <handle> <parent> <kind>\n");
exit(1);
}
static int parse_blackhole_opts(struct rtnl_qdisc *qdisc, char *argv[],
int argc)
{
return 0;
}
static int parse_pfifo_opts(struct rtnl_qdisc *qdisc, char *argv[], int argc)
{
int err, limit;
if (argc > 0) {
if (argc != 2 || strcasecmp(argv[0], "limit")) {
fprintf(stderr, "Usage: ... pfifo limit <limit>\n");
return -1;
}
limit = strtoul(argv[1], NULL, 0);
err = rtnl_qdisc_fifo_set_limit(qdisc, limit);
if (err < 0) {
fprintf(stderr, "%s\n", nl_geterror());
return -1;
}
}
return 0;
}
static int parse_bfifo_opts(struct rtnl_qdisc *qdisc, char *argv[], int argc)
{
int err, limit;
if (argc > 0) {
if (argc != 2 || strcasecmp(argv[0], "limit")) {
fprintf(stderr, "Usage: ... bfifo limit <limit>\n");
return -1;
}
limit = nl_size2int(argv[1]);
if (limit < 0) {
fprintf(stderr, "Invalid value for limit.\n");
return -1;
}
err = rtnl_qdisc_fifo_set_limit(qdisc, limit);
if (err < 0) {
fprintf(stderr, "%s\n", nl_geterror());
return -1;
}
}
return 0;
}
static int parse_prio_opts(struct rtnl_qdisc *qdisc, char *argv[], int argc)
{
int i, err, bands;
uint8_t map[] = QDISC_PRIO_DEFAULT_PRIOMAP;
if (argc > 0) {
if (argc < 2 || strcasecmp(argv[0], "bands"))
goto usage;
bands = strtoul(argv[1], NULL, 0);
err = rtnl_qdisc_prio_set_bands(qdisc, bands);
if (err < 0) {
fprintf(stderr, "%s\n", nl_geterror());
return -1;
}
}
if (argc > 2) {
if (argc < 5 || strcasecmp(argv[2], "map"))
goto usage;
for (i = 3; i < (argc & ~1U); i += 2) {
int prio, band;
prio = rtnl_str2prio(argv[i]);
if (prio < 0 || prio > sizeof(map)/sizeof(map[0])) {
fprintf(stderr, "Invalid priority \"%s\"\n",
argv[i]);
return -1;
}
band = strtoul(argv[i+1], NULL, 0);
map[prio] = band;
}
}
err = rtnl_qdisc_prio_set_priomap(qdisc, map, sizeof(map));
if (err < 0) {
fprintf(stderr, "%s\n", nl_geterror());
return -1;
}
return 0;
usage:
fprintf(stderr, "Usage: ... prio bands <nbands> map MAP\n"
"MAP := <prio> <band>\n");
return -1;
}
int main(int argc, char *argv[])
{
struct nl_handle *nlh;
struct rtnl_qdisc *qdisc;
uint32_t handle, parent;
int err = 1;
if (nltool_init(argc, argv) < 0)
return -1;
if (argc < 5 || !strcmp(argv[1], "-h"))
print_usage();
nlh = nltool_alloc_handle();
if (!nlh)
goto errout;
qdisc = rtnl_qdisc_alloc();
if (!qdisc)
goto errout_free_handle;
rtnl_qdisc_set_ifindex(qdisc, strtoul(argv[1], NULL, 0));
if (rtnl_tc_str2handle(argv[2], &handle) < 0) {
fprintf(stderr, "%s\n", nl_geterror());
goto errout_free_qdisc;
}
if (rtnl_tc_str2handle(argv[3], &parent) < 0) {
fprintf(stderr, "%s\n", nl_geterror());
goto errout_free_qdisc;
}
rtnl_qdisc_set_handle(qdisc, handle);
rtnl_qdisc_set_parent(qdisc, parent);
rtnl_qdisc_set_kind(qdisc, argv[4]);
if (!strcasecmp(argv[4], "blackhole"))
err = parse_blackhole_opts(qdisc, &argv[5], argc-5);
else if (!strcasecmp(argv[4], "pfifo"))
err = parse_pfifo_opts(qdisc, &argv[5], argc-5);
else if (!strcasecmp(argv[4], "bfifo"))
err = parse_bfifo_opts(qdisc, &argv[5], argc-5);
else if (!strcasecmp(argv[4], "prio"))
err = parse_prio_opts(qdisc, &argv[5], argc-5);
else {
fprintf(stderr, "Unknown qdisc \"%s\"\n", argv[4]);
goto errout_free_qdisc;
}
if (err < 0)
goto errout_free_qdisc;
if (nltool_connect(nlh, NETLINK_ROUTE) < 0)
goto errout_free_qdisc;
if (rtnl_qdisc_add(nlh, qdisc, NLM_F_REPLACE) < 0) {
fprintf(stderr, "Unable to add Qdisc: %s\n", nl_geterror());
goto errout_close;
}
err = 0;
errout_close:
nl_close(nlh);
errout_free_qdisc:
rtnl_qdisc_put(qdisc);
errout_free_handle:
nl_handle_destroy(nlh);
errout:
return err;
}
|
