1 /*
2 * src/nl-qdisc-add.c Add Queueing Discipline
3 *
4 * This library is free software; you can redistribute it and/or
5 * modify it under the terms of the GNU Lesser General Public
6 * License as published by the Free Software Foundation version 2.1
7 * of the License.
8 *
9 * Copyright (c) 2010 Thomas Graf <tgraf@suug.ch>
10 */
11
12 #include <netlink/cli/utils.h>
13 #include <netlink/cli/tc.h>
14 #include <netlink/cli/qdisc.h>
15 #include <netlink/cli/link.h>
16
17 #include <netlink-private/route/tc-api.h>
18
19 static int quiet = 0;
20
print_usage(void)21 static void print_usage(void)
22 {
23 printf(
24 "Usage: nl-qdisc-add [OPTIONS]... QDISC [CONFIGURATION]...\n"
25 "\n"
26 "OPTIONS\n"
27 " -q, --quiet Do not print informal notifications.\n"
28 " -h, --help Show this help text.\n"
29 " -v, --version Show versioning information.\n"
30 " --update Update qdisc if it exists.\n"
31 " --replace Replace or update qdisc if it exists.\n"
32 " --update-only Only update qdisc, never create it.\n"
33 " --replace-only Only replace or update qdisc, never create it.\n"
34 " -d, --dev=DEV Network device the qdisc should be attached to.\n"
35 " -i, --id=ID ID of new qdisc (default: auto-generated)r\n"
36 " -p, --parent=ID ID of parent { root | ingress | QDISC-ID }\n"
37 "\n"
38 "CONFIGURATION\n"
39 " -h, --help Show help text of qdisc specific options.\n"
40 "\n"
41 "EXAMPLE\n"
42 " $ nl-qdisc-add --dev=eth1 --parent=root htb --rate=100mbit\n"
43 "\n"
44 );
45 exit(0);
46 }
47
main(int argc,char * argv[])48 int main(int argc, char *argv[])
49 {
50 struct nl_sock *sock;
51 struct rtnl_qdisc *qdisc;
52 struct rtnl_tc *tc;
53 struct nl_cache *link_cache;
54 struct nl_dump_params dp = {
55 .dp_type = NL_DUMP_DETAILS,
56 .dp_fd = stdout,
57 };
58 struct nl_cli_tc_module *tm;
59 struct rtnl_tc_ops *ops;
60 int err, flags = NLM_F_CREATE | NLM_F_EXCL;
61 char *kind, *id = NULL;
62
63 sock = nl_cli_alloc_socket();
64 nl_cli_connect(sock, NETLINK_ROUTE);
65
66 link_cache = nl_cli_link_alloc_cache(sock);
67
68 qdisc = nl_cli_qdisc_alloc();
69 tc = (struct rtnl_tc *) qdisc;
70
71 for (;;) {
72 int c, optidx = 0;
73 enum {
74 ARG_REPLACE = 257,
75 ARG_UPDATE = 258,
76 ARG_REPLACE_ONLY,
77 ARG_UPDATE_ONLY,
78 };
79 static struct option long_opts[] = {
80 { "quiet", 0, 0, 'q' },
81 { "help", 0, 0, 'h' },
82 { "version", 0, 0, 'v' },
83 { "dev", 1, 0, 'd' },
84 { "parent", 1, 0, 'p' },
85 { "id", 1, 0, 'i' },
86 { "replace", 0, 0, ARG_REPLACE },
87 { "update", 0, 0, ARG_UPDATE },
88 { "replace-only", 0, 0, ARG_REPLACE_ONLY },
89 { "update-only", 0, 0, ARG_UPDATE_ONLY },
90 { 0, 0, 0, 0 }
91 };
92
93 c = getopt_long(argc, argv, "+qhvd:p:i:",
94 long_opts, &optidx);
95 if (c == -1)
96 break;
97
98 switch (c) {
99 case 'q': quiet = 1; break;
100 case 'h': print_usage(); break;
101 case 'v': nl_cli_print_version(); break;
102 case 'd': nl_cli_tc_parse_dev(tc, link_cache, optarg); break;
103 case 'p': nl_cli_tc_parse_parent(tc, optarg); break;
104 case 'i': id = strdup(optarg); break;
105 case ARG_UPDATE: flags = NLM_F_CREATE; break;
106 case ARG_REPLACE: flags = NLM_F_CREATE | NLM_F_REPLACE; break;
107 case ARG_UPDATE_ONLY: flags = 0; break;
108 case ARG_REPLACE_ONLY: flags = NLM_F_REPLACE; break;
109 }
110 }
111
112 if (optind >= argc)
113 print_usage();
114
115 if (!rtnl_tc_get_ifindex(tc))
116 nl_cli_fatal(EINVAL, "You must specify a network device (--dev=XXX)");
117
118 if (!rtnl_tc_get_parent(tc))
119 nl_cli_fatal(EINVAL, "You must specify a parent");
120
121 if (id) {
122 nl_cli_tc_parse_handle(tc, id, 1);
123 free(id);
124 }
125
126 kind = argv[optind++];
127 rtnl_tc_set_kind(tc, kind);
128
129 if (!(ops = rtnl_tc_get_ops(tc)))
130 nl_cli_fatal(ENOENT, "Unknown qdisc \"%s\"", kind);
131
132 if (!(tm = nl_cli_tc_lookup(ops)))
133 nl_cli_fatal(ENOTSUP, "Qdisc type \"%s\" not supported.", kind);
134
135 tm->tm_parse_argv(tc, argc, argv);
136
137 if (!quiet) {
138 printf("Adding ");
139 nl_object_dump(OBJ_CAST(qdisc), &dp);
140 }
141
142 if ((err = rtnl_qdisc_add(sock, qdisc, flags)) < 0)
143 nl_cli_fatal(EINVAL, "Unable to add qdisc: %s", nl_geterror(err));
144
145 return 0;
146 }
147