1 /*
2 * src/nl-class-add.c Add/Update/Replace Traffic Class
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/class.h>
16 #include <netlink/cli/link.h>
17
18 #include <netlink-private/route/tc-api.h>
19
20 static int quiet = 0;
21
print_usage(void)22 static void print_usage(void)
23 {
24 printf(
25 "Usage: nl-class-add [OPTIONS]... class [CONFIGURATION]...\n"
26 "\n"
27 "OPTIONS\n"
28 " -q, --quiet Do not print informal notifications.\n"
29 " -h, --help Show this help text.\n"
30 " -v, --version Show versioning information.\n"
31 " --update Update class if it exists.\n"
32 " --update-only Only update class, never create it.\n"
33 " -d, --dev=DEV Network device the class should be attached to.\n"
34 " -i, --id=ID ID of new class (default: auto-generated)\n"
35 " -p, --parent=ID ID of parent { root | ingress | class-ID }\n"
36 " --mtu=SIZE Overwrite MTU (default: MTU of network device)\n"
37 " --mpu=SIZE Minimum packet size on the link (default: 0).\n"
38 " --overhead=SIZE Overhead in bytes per packet (default: 0).\n"
39 " --linktype=TYPE Overwrite linktype (default: type of network device)\n"
40 "\n"
41 "CONFIGURATION\n"
42 " -h, --help Show help text of class specific options.\n"
43 "\n"
44 "EXAMPLE\n"
45 " $ nl-class-add --dev=eth1 --parent=root htb --rate=100mbit\n"
46 "\n"
47 );
48 exit(0);
49 }
50
main(int argc,char * argv[])51 int main(int argc, char *argv[])
52 {
53 struct nl_sock *sock;
54 struct rtnl_class *class;
55 struct rtnl_tc *tc;
56 struct nl_cache *link_cache;
57 struct nl_dump_params dp = {
58 .dp_type = NL_DUMP_DETAILS,
59 .dp_fd = stdout,
60 };
61 struct nl_cli_tc_module *tm;
62 struct rtnl_tc_ops *ops;
63 int err, flags = NLM_F_CREATE | NLM_F_EXCL;
64 char *kind, *id = NULL;
65
66 sock = nl_cli_alloc_socket();
67 nl_cli_connect(sock, NETLINK_ROUTE);
68
69 link_cache = nl_cli_link_alloc_cache(sock);
70
71 class = nl_cli_class_alloc();
72 tc = (struct rtnl_tc *) class;
73
74 for (;;) {
75 int c, optidx = 0;
76 enum {
77 ARG_UPDATE = 257,
78 ARG_UPDATE_ONLY = 258,
79 ARG_MTU,
80 ARG_MPU,
81 ARG_OVERHEAD,
82 ARG_LINKTYPE,
83 };
84 static struct option long_opts[] = {
85 { "quiet", 0, 0, 'q' },
86 { "help", 0, 0, 'h' },
87 { "version", 0, 0, 'v' },
88 { "dev", 1, 0, 'd' },
89 { "parent", 1, 0, 'p' },
90 { "id", 1, 0, 'i' },
91 { "update", 0, 0, ARG_UPDATE },
92 { "update-only", 0, 0, ARG_UPDATE_ONLY },
93 { "mtu", 1, 0, ARG_MTU },
94 { "mpu", 1, 0, ARG_MPU },
95 { "overhead", 1, 0, ARG_OVERHEAD },
96 { "linktype", 1, 0, ARG_LINKTYPE },
97 { 0, 0, 0, 0 }
98 };
99
100 c = getopt_long(argc, argv, "+qhvd:p:i:",
101 long_opts, &optidx);
102 if (c == -1)
103 break;
104
105 switch (c) {
106 case 'q': quiet = 1; break;
107 case 'h': print_usage(); break;
108 case 'v': nl_cli_print_version(); break;
109 case 'd': nl_cli_tc_parse_dev(tc, link_cache, optarg); break;
110 case 'p': nl_cli_tc_parse_parent(tc, optarg); break;
111 case 'i': id = strdup(optarg); break;
112 case ARG_UPDATE: flags = NLM_F_CREATE; break;
113 case ARG_UPDATE_ONLY: flags = 0; break;
114 case ARG_MTU: nl_cli_tc_parse_mtu(tc, optarg); break;
115 case ARG_MPU: nl_cli_tc_parse_mpu(tc, optarg); break;
116 case ARG_OVERHEAD: nl_cli_tc_parse_overhead(tc, optarg); break;
117 case ARG_LINKTYPE: nl_cli_tc_parse_linktype(tc, optarg); break;
118 }
119 }
120
121 if (optind >= argc)
122 print_usage();
123
124 if (!rtnl_tc_get_ifindex(tc))
125 nl_cli_fatal(EINVAL, "You must specify a network device (--dev=XXX)");
126
127 if (!rtnl_tc_get_parent(tc))
128 nl_cli_fatal(EINVAL, "You must specify a parent (--parent=XXX)");
129
130 if (id) {
131 nl_cli_tc_parse_handle(tc, id, 1);
132 free(id);
133 }
134
135 kind = argv[optind++];
136 rtnl_tc_set_kind(tc, kind);
137
138 if (!(ops = rtnl_tc_get_ops(tc)))
139 nl_cli_fatal(ENOENT, "Unknown class \"%s\"", kind);
140
141 if (!(tm = nl_cli_tc_lookup(ops)))
142 nl_cli_fatal(ENOTSUP, "class type \"%s\" not supported.", kind);
143
144 tm->tm_parse_argv(tc, argc, argv);
145
146 if (!quiet) {
147 printf("Adding ");
148 nl_object_dump(OBJ_CAST(class), &dp);
149 }
150
151 if ((err = rtnl_class_add(sock, class, flags)) < 0)
152 nl_cli_fatal(EINVAL, "Unable to add class: %s", nl_geterror(err));
153
154 return 0;
155 }
156