145 lines
3.5 KiB
C
145 lines
3.5 KiB
C
/*
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* src/nl-qdisc-delete.c Delete Queuing Disciplines
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation version 2.1
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* of the License.
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*
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* Copyright (c) 2003-2010 Thomas Graf <tgraf@suug.ch>
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*/
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#include <netlink/cli/utils.h>
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#include <netlink/cli/tc.h>
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#include <netlink/cli/qdisc.h>
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#include <netlink/cli/link.h>
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static int quiet = 0, default_yes = 0, deleted = 0, interactive = 0;
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static struct nl_sock *sock;
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static void print_usage(void)
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{
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printf(
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"Usage: nl-qdisc-delete [OPTION]... [QDISC]\n"
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"\n"
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"OPTIONS\n"
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" --interactive Run interactively.\n"
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" --yes Set default answer to yes.\n"
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" -q, --quiet Do not print informal notifications.\n"
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" -h, --help Show this help text and exit.\n"
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" -v, --version Show versioning information and exit.\n"
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"\n"
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" -d, --dev=DEV Device the qdisc is attached to.\n"
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" -p, --parent=ID Identifier of parent qdisc/class.\n"
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" -i, --id=ID Identifier\n"
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" -k, --kind=NAME Kind of qdisc (e.g. pfifo_fast)\n"
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);
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exit(0);
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}
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static void delete_cb(struct nl_object *obj, void *arg)
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{
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struct rtnl_qdisc *qdisc = nl_object_priv(obj);
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struct nl_dump_params params = {
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.dp_type = NL_DUMP_LINE,
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.dp_fd = stdout,
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};
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int err;
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/* Ignore default qdiscs, unable to delete */
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if (rtnl_tc_get_handle((struct rtnl_tc *) qdisc) == 0)
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return;
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if (interactive && !nl_cli_confirm(obj, ¶ms, default_yes))
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return;
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if ((err = rtnl_qdisc_delete(sock, qdisc)) < 0)
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nl_cli_fatal(err, "Unable to delete qdisc: %s\n", nl_geterror(err));
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if (!quiet) {
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printf("Deleted ");
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nl_object_dump(obj, ¶ms);
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}
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deleted++;
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}
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int main(int argc, char *argv[])
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{
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struct rtnl_qdisc *qdisc;
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struct rtnl_tc *tc;
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struct nl_cache *link_cache, *qdisc_cache;
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int nfilter = 0;
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sock = nl_cli_alloc_socket();
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nl_cli_connect(sock, NETLINK_ROUTE);
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link_cache = nl_cli_link_alloc_cache(sock);
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qdisc_cache = nl_cli_qdisc_alloc_cache(sock);
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qdisc = nl_cli_qdisc_alloc();
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tc = (struct rtnl_tc *) qdisc;
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for (;;) {
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int c, optidx = 0;
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enum {
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ARG_YES = 257,
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ARG_INTERACTIVE = 258,
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};
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static struct option long_opts[] = {
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{ "interactive", 0, 0, ARG_INTERACTIVE },
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{ "yes", 0, 0, ARG_YES },
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{ "quiet", 0, 0, 'q' },
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{ "help", 0, 0, 'h' },
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{ "version", 0, 0, 'v' },
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{ "dev", 1, 0, 'd' },
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{ "parent", 1, 0, 'p' },
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{ "id", 1, 0, 'i' },
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{ "kind", 1, 0, 'k' },
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{ 0, 0, 0, 0 }
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};
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c = getopt_long(argc, argv, "qhvd:p:i:k:", long_opts, &optidx);
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if (c == -1)
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break;
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switch (c) {
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case '?': nl_cli_fatal(EINVAL, "Invalid options");
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case ARG_INTERACTIVE: interactive = 1; break;
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case ARG_YES: default_yes = 1; break;
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case 'q': quiet = 1; break;
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case 'h': print_usage(); break;
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case 'v': nl_cli_print_version(); break;
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case 'd':
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nfilter++;
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nl_cli_tc_parse_dev(tc, link_cache, optarg);
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break;
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case 'p':
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nfilter++;
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nl_cli_tc_parse_parent(tc, optarg);
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break;
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case 'i':
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nfilter++;
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nl_cli_tc_parse_handle(tc, optarg, 0);
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break;
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case 'k':
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nfilter++;
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nl_cli_tc_parse_kind(tc, optarg);
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break;
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}
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}
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if (nfilter == 0 && !interactive && !default_yes) {
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nl_cli_fatal(EINVAL,
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"You are attempting to delete all qdiscs on all devices.\n"
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"If you want to proceed, run nl-qdisc-delete --yes.\n"
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"Aborting...");
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}
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nl_cache_foreach_filter(qdisc_cache, OBJ_CAST(qdisc), delete_cb, NULL);
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if (!quiet)
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printf("Deleted %d qdiscs\n", deleted);
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return 0;
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}
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