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 (at) 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 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 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
