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/*
* 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) 2003-2010 Thomas Graf <tgraf@suug.ch>
*/
#include <netlink/cli/utils.h>
#include <netlink/cli/tc.h>
#include <netlink/cli/cls.h>
#include <netlink/cli/link.h>
static int quiet = 0;
static void print_usage(void)
{
printf(
"Usage: nl-cls-add [OPTIONS]... classifier [CONFIGURATION]...\n"
"\n"
"OPTIONS\n"
" -q, --quiet Do not print informal notifications.\n"
" -h, --help Show this help text.\n"
" -v, --version Show versioning information.\n"
" --update Update classifier if it exists.\n"
" --update-only Only update classifier, never create it.\n"
" -d, --dev=DEV Network device the classifier should be attached to.\n"
" -i, --id=ID ID of new classifier (default: auto-generated)\n"
" -p, --parent=ID ID of parent { root | ingress | class-ID }\n"
" --protocol=PROTO Protocol to match (default: all)\n"
" --prio=PRIO Priority (default: 0)\n"
" --mtu=SIZE Overwrite MTU (default: MTU of network device)\n"
" --mpu=SIZE Minimum packet size on the link (default: 0).\n"
" --overhead=SIZE Overhead in bytes per packet (default: 0).\n"
" --linktype=TYPE Overwrite linktype (default: type of network device)\n"
"\n"
"CONFIGURATION\n"
" -h, --help Show help text of classifier specific options.\n"
"\n"
"EXAMPLE\n"
" $ nl-cls-add --dev=eth1 --parent=q_root basic --target c_www\n"
"\n"
);
exit(0);
}
int main(int argc, char *argv[])
{
struct nl_sock *sock;
struct rtnl_cls *cls;
struct rtnl_tc *tc;
struct nl_cache *link_cache;
struct nl_dump_params dp = {
.dp_type = NL_DUMP_DETAILS,
.dp_fd = stdout,
};
struct nl_cli_cls_module *cm;
struct rtnl_cls_ops *ops;
int err, flags = NLM_F_CREATE | NLM_F_EXCL;
char *kind, *id = NULL;
sock = nl_cli_alloc_socket();
nl_cli_connect(sock, NETLINK_ROUTE);
link_cache = nl_cli_link_alloc_cache(sock);
cls = nl_cli_cls_alloc();
tc = (struct rtnl_tc *) cls;
for (;;) {
int c, optidx = 0;
enum {
ARG_UPDATE = 257,
ARG_UPDATE_ONLY = 258,
ARG_MTU,
ARG_MPU,
ARG_OVERHEAD,
ARG_LINKTYPE,
ARG_PROTO,
ARG_PRIO,
};
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' },
{ "id", 1, 0, 'i' },
{ "proto", 1, 0, ARG_PROTO },
{ "prio", 1, 0, ARG_PRIO },
{ "update", 0, 0, ARG_UPDATE },
{ "update-only", 0, 0, ARG_UPDATE_ONLY },
{ "mtu", 1, 0, ARG_MTU },
{ "mpu", 1, 0, ARG_MPU },
{ "overhead", 1, 0, ARG_OVERHEAD },
{ "linktype", 1, 0, ARG_LINKTYPE },
{ 0, 0, 0, 0 }
};
c = getopt_long(argc, argv, "+qhvd:p:i:",
long_opts, &optidx);
if (c == -1)
break;
switch (c) {
case 'q': quiet = 1; break;
case 'h': print_usage(); break;
case 'v': nl_cli_print_version(); break;
case 'd': nl_cli_tc_parse_dev(tc, link_cache, optarg); break;
case 'p': nl_cli_tc_parse_parent(tc, optarg); break;
case 'i': id = strdup(optarg); break;
case ARG_UPDATE: flags = NLM_F_CREATE; break;
case ARG_UPDATE_ONLY: flags = 0; break;
case ARG_MTU: nl_cli_tc_parse_mtu(tc, optarg); break;
case ARG_MPU: nl_cli_tc_parse_mpu(tc, optarg); break;
case ARG_OVERHEAD: nl_cli_tc_parse_overhead(tc, optarg); break;
case ARG_LINKTYPE: nl_cli_tc_parse_linktype(tc, optarg); break;
case ARG_PROTO: nl_cli_cls_parse_proto(cls, optarg); break;
case ARG_PRIO:
rtnl_cls_set_prio(cls, nl_cli_parse_u32(optarg));
break;
}
}
if (optind >= argc)
print_usage();
if (!rtnl_tc_get_ifindex(tc))
nl_cli_fatal(EINVAL, "You must specify a network device (--dev=XXX)");
if (!rtnl_tc_get_parent(tc))
nl_cli_fatal(EINVAL, "You must specify a parent (--parent=XXX)");
if (id) {
nl_cli_tc_parse_handle(tc, id, 1);
free(id);
}
kind = argv[optind++];
rtnl_cls_set_kind(cls, kind);
if (!(ops = rtnl_cls_lookup_ops(cls)))
nl_cli_fatal(ENOENT, "Unknown classifier \"%s\".", kind);
if (!(cm = nl_cli_cls_lookup(ops)))
nl_cli_fatal(ENOTSUP, "Classifier type \"%s\" not supported.", kind);
if ((err = cm->cm_parse_argv(cls, argc, argv)) < 0)
nl_cli_fatal(err, "Unable to parse classifier options");
if (!quiet) {
printf("Adding ");
nl_object_dump(OBJ_CAST(cls), &dp);
}
if ((err = rtnl_cls_add(sock, cls, flags)) < 0)
nl_cli_fatal(EINVAL, "Unable to add classifier: %s", nl_geterror(err));
return 0;
}
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