1 /* 2 * src/nl-cls-add.c Add classifier 3 * 4 * This library is free software; you can redistribute it and/or 5 * modify it under the terms of the GNU General Public License as 6 * published by the Free Software Foundation version 2 of the License. 7 * 8 * Copyright (c) 2003-2011 Thomas Graf <tgraf (at) suug.ch> 9 */ 10 11 #include <netlink/cli/utils.h> 12 #include <netlink/cli/tc.h> 13 #include <netlink/cli/cls.h> 14 #include <netlink/cli/link.h> 15 16 #include <netlink-private/route/tc-api.h> 17 18 static int quiet = 0; 19 20 static void print_usage(void) 21 { 22 printf( 23 "Usage: nl-cls-add [OPTIONS]... classifier [CONFIGURATION]...\n" 24 "\n" 25 "OPTIONS\n" 26 " -q, --quiet Do not print informal notifications.\n" 27 " -h, --help Show this help text.\n" 28 " -v, --version Show versioning information.\n" 29 " --update Update classifier if it exists.\n" 30 " --update-only Only update classifier, never create it.\n" 31 " -d, --dev=DEV Network device the classifier should be attached to.\n" 32 " -i, --id=ID ID of new classifier (default: auto-generated)\n" 33 " -p, --parent=ID ID of parent { root | ingress | class-ID }\n" 34 " --protocol=PROTO Protocol to match (default: all)\n" 35 " --prio=PRIO Priority (default: 0)\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 classifier specific options.\n" 43 "\n" 44 "EXAMPLE\n" 45 " $ nl-cls-add --dev=eth1 --parent=q_root basic --target c_www\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_cls *cls; 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 cls = nl_cli_cls_alloc(); 72 tc = (struct rtnl_tc *) cls; 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 ARG_PROTO, 84 ARG_PRIO, 85 }; 86 static struct option long_opts[] = { 87 { "quiet", 0, 0, 'q' }, 88 { "help", 0, 0, 'h' }, 89 { "version", 0, 0, 'v' }, 90 { "dev", 1, 0, 'd' }, 91 { "parent", 1, 0, 'p' }, 92 { "id", 1, 0, 'i' }, 93 { "proto", 1, 0, ARG_PROTO }, 94 { "prio", 1, 0, ARG_PRIO }, 95 { "update", 0, 0, ARG_UPDATE }, 96 { "update-only", 0, 0, ARG_UPDATE_ONLY }, 97 { "mtu", 1, 0, ARG_MTU }, 98 { "mpu", 1, 0, ARG_MPU }, 99 { "overhead", 1, 0, ARG_OVERHEAD }, 100 { "linktype", 1, 0, ARG_LINKTYPE }, 101 { 0, 0, 0, 0 } 102 }; 103 104 c = getopt_long(argc, argv, "+qhvd:p:i:", 105 long_opts, &optidx); 106 if (c == -1) 107 break; 108 109 switch (c) { 110 case 'q': quiet = 1; break; 111 case 'h': print_usage(); break; 112 case 'v': nl_cli_print_version(); break; 113 case 'd': nl_cli_tc_parse_dev(tc, link_cache, optarg); break; 114 case 'p': nl_cli_tc_parse_parent(tc, optarg); break; 115 case 'i': id = strdup(optarg); break; 116 case ARG_UPDATE: flags = NLM_F_CREATE; break; 117 case ARG_UPDATE_ONLY: flags = 0; break; 118 case ARG_MTU: nl_cli_tc_parse_mtu(tc, optarg); break; 119 case ARG_MPU: nl_cli_tc_parse_mpu(tc, optarg); break; 120 case ARG_OVERHEAD: nl_cli_tc_parse_overhead(tc, optarg); break; 121 case ARG_LINKTYPE: nl_cli_tc_parse_linktype(tc, optarg); break; 122 case ARG_PROTO: nl_cli_cls_parse_proto(cls, optarg); break; 123 case ARG_PRIO: 124 rtnl_cls_set_prio(cls, nl_cli_parse_u32(optarg)); 125 break; 126 } 127 } 128 129 if (optind >= argc) 130 print_usage(); 131 132 if (!rtnl_tc_get_ifindex(tc)) 133 nl_cli_fatal(EINVAL, "You must specify a network device (--dev=XXX)"); 134 135 if (!rtnl_tc_get_parent(tc)) 136 nl_cli_fatal(EINVAL, "You must specify a parent (--parent=XXX)"); 137 138 if (id) { 139 nl_cli_tc_parse_handle(tc, id, 1); 140 free(id); 141 } 142 143 kind = argv[optind++]; 144 rtnl_tc_set_kind(tc, kind); 145 146 if (!(ops = rtnl_tc_get_ops(tc))) 147 nl_cli_fatal(ENOENT, "Unknown classifier \"%s\".", kind); 148 149 if (!(tm = nl_cli_tc_lookup(ops))) 150 nl_cli_fatal(ENOTSUP, "Classifier type \"%s\" not supported.", kind); 151 152 tm->tm_parse_argv(tc, argc, argv); 153 154 if (!quiet) { 155 printf("Adding "); 156 nl_object_dump(OBJ_CAST(cls), &dp); 157 } 158 159 if ((err = rtnl_cls_add(sock, cls, flags)) < 0) 160 nl_cli_fatal(EINVAL, "Unable to add classifier: %s", nl_geterror(err)); 161 162 return 0; 163 } 164
