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nl-cls-add.c

/*
 * src/nl-cls-add.c     Add classifier
 *
 *    This library is free software; you can redistribute it and/or
 *    modify it under the terms of the GNU General Public License as
 *    published by the Free Software Foundation version 2 of the License.
 *
 * Copyright (c) 2003-2009 Thomas Graf <tgraf@suug.ch>
 */

#include "cls/utils.h"

static int quiet = 0;

static void print_usage(void)
{
      printf(
"Usage: nl-cls-add [OPTION]... [CLASSIFIER] TYPE [TYPE OPTIONS]...\n"
"\n"
"Options\n"
" -q, --quiet               Do not print informal notifications.\n"
" -h, --help                Show this help.\n"
" -v, --version             Show versioning information.\n"
"\n"
"Classifier Options\n"
" -d, --dev=DEV             Device the classifier should be assigned to.\n"
" -p, --parent=HANDLE       Parent QDisc\n"
"     --proto=PROTO         Protocol (default=IPv4)\n"
"     --prio=NUM            Priority (0..256)\n"
"     --id=HANDLE           Unique identifier\n"
      );
      exit(0);
}

int main(int argc, char *argv[])
{
      struct nl_sock *sock;
      struct rtnl_cls *cls;
      struct nl_cache *link_cache;
      struct rtnl_cls_ops *ops;
      struct cls_module *mod;
      struct nl_dump_params dp = {
            .dp_type = NL_DUMP_DETAILS,
            .dp_fd = stdout,
      };
      char *kind;
      int err, nlflags = NLM_F_CREATE;
 
      sock = nlt_alloc_socket();
      nlt_connect(sock, NETLINK_ROUTE);
      link_cache = nlt_alloc_link_cache(sock);
      cls = nlt_alloc_cls();

      for (;;) {
            int c, optidx = 0;
            enum {
                  ARG_PROTO = 257,
                  ARG_PRIO = 258,
                  ARG_ID,
            };
            static struct option long_opts[] = {
                  { "quiet", 0, 0, 'q' },
                  { "help", 0, 0, 'h' },
                  { "version", 0, 0, 'v' },
                  { "dev", 1, 0, 'd' },
                  { "parent", 1, 0, 'p' },
                  { "proto", 1, 0, ARG_PROTO },
                  { "prio", 1, 0, ARG_PRIO },
                  { "id", 1, 0, ARG_ID },
                  { 0, 0, 0, 0 }
            };
      
            c = getopt_long(argc, argv, "+qhva:d:", long_opts, &optidx);
            if (c == -1)
                  break;

            switch (c) {
            case '?': exit(NLE_INVAL);
            case 'q': quiet = 1; break;
            case 'h': print_usage(); break;
            case 'v': nlt_print_version(); break;
            case 'd': parse_dev(cls, link_cache, optarg); break;
            case 'p': parse_parent(cls, optarg); break;
            case ARG_PRIO: parse_prio(cls, optarg); break;
            case ARG_ID: parse_handle(cls, optarg); break;
            case ARG_PROTO: parse_proto(cls, optarg); break;
            }
      }

      if (optind >= argc) {
            print_usage();
            fatal(EINVAL, "Missing classifier type");
      }

      kind = argv[optind++];
      if ((err = rtnl_cls_set_kind(cls, kind)) < 0)
            fatal(ENOENT, "Unknown classifier type \"%s\".", kind);
      
      ops = rtnl_cls_get_ops(cls);
      if (!(mod = lookup_cls_mod(ops)))
            fatal(ENOTSUP, "Classifier type \"%s\" not supported.", kind);

      mod->parse_argv(cls, argc, argv);

      printf("Adding ");
      nl_object_dump(OBJ_CAST(cls), &dp);

      if ((err = rtnl_cls_add(sock, cls, nlflags)) < 0)
            fatal(err, "Unable to add classifier: %s", nl_geterror(err));

      if (!quiet) {
            printf("Added ");
            nl_object_dump(OBJ_CAST(cls), &dp);
      }

      return 0;
}

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