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/*
* src/nl-fib-lookup.c FIB Route Lookup
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation version 2.1
* of the License.
*
* Copyright (c) 2003-2006 Thomas Graf <tgraf@suug.ch>
*/
#include "utils.h"
static void print_usage(void)
{
printf(
"Usage: nl-fib-lookup [options] <addr>\n"
"Options:\n"
" -t, --table <table> Table id\n"
" -f, --fwmark <int> Firewall mark\n"
" -s, --scope <scope> Routing scope\n"
" -T, --tos <int> Type of Service\n");
exit(1);
}
int main(int argc, char *argv[])
{
struct nl_handle *nlh;
struct nl_cache *result;
struct flnl_request *request;
struct nl_addr *addr;
struct nl_dump_params params = {
.dp_fd = stdout,
.dp_type = NL_DUMP_FULL,
};
int table = RT_TABLE_UNSPEC, scope = RT_SCOPE_UNIVERSE;
int tos = 0, err = 1;
uint64_t fwmark = 0;
if (nltool_init(argc, argv) < 0)
return -1;
while (1) {
static struct option long_opts[] = {
{"table", 1, 0, 't'},
{"fwmark", 1, 0, 'f'},
{"scope", 1, 0, 's'},
{"tos", 1, 0, 'T'},
{"help", 0, 0, 'h'},
{0, 0, 0, 0},
};
int c, idx = 0;
c = getopt_long(argc, argv, "t:f:s:T:h", long_opts, &idx);
if (c == -1)
break;
switch (c) {
case 't':
table = strtoul(optarg, NULL, 0);
break;
case 'f':
fwmark = strtoul(optarg, NULL, 0);
break;
case 's':
scope = strtoul(optarg, NULL, 0);
break;
case 'T':
tos = strtoul(optarg, NULL, 0);
break;
default:
print_usage();
}
}
if (optind >= argc)
print_usage();
nlh = nltool_alloc_handle();
if (!nlh)
return -1;
addr = nl_addr_parse(argv[optind], AF_INET);
if (!addr) {
fprintf(stderr, "Unable to parse address \"%s\": %s\n",
argv[optind], nl_geterror());
goto errout;
}
result = flnl_result_alloc_cache();
if (!result)
goto errout_addr;
request = flnl_request_alloc();
if (!request)
goto errout_result;
flnl_request_set_table(request, table);
flnl_request_set_fwmark(request, fwmark);
flnl_request_set_scope(request, scope);
flnl_request_set_tos(request, tos);
err = flnl_request_set_addr(request, addr);
nl_addr_put(addr);
if (err < 0)
goto errout_put;
if (nltool_connect(nlh, NETLINK_FIB_LOOKUP) < 0)
goto errout_put;
err = flnl_lookup(nlh, request, result);
if (err < 0) {
fprintf(stderr, "Unable to lookup: %s\n", nl_geterror());
goto errout_put;
}
nl_cache_dump(result, ¶ms);
err = 0;
errout_put:
nl_object_put(OBJ_CAST(request));
errout_result:
nl_cache_free(result);
errout_addr:
nl_addr_put(addr);
errout:
nl_close(nlh);
nl_handle_destroy(nlh);
return err;
}
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