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148 lines
2.8 KiB
C
148 lines
2.8 KiB
C
/* NHRP daemon main functions
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* Copyright (c) 2014-2015 Timo Teräs
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*
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* This file is free software: you may copy, redistribute and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 2 of the License, or
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* (at your option) any later version.
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*/
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#include <unistd.h>
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#include "zebra.h"
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#include "privs.h"
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#include "getopt.h"
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#include "thread.h"
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#include "sigevent.h"
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#include "version.h"
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#include "log.h"
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#include "memory.h"
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#include "memory_vty.h"
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#include "command.h"
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#include "libfrr.h"
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#include "nhrpd.h"
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#include "netlink.h"
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DEFINE_MGROUP(NHRPD, "NHRP")
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unsigned int debug_flags = 0;
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struct thread_master *master;
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struct timeval current_time;
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/* nhrpd options. */
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struct option longopts[] = {
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{ 0 }
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};
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/* nhrpd privileges */
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static zebra_capabilities_t _caps_p [] = {
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ZCAP_NET_RAW,
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ZCAP_NET_ADMIN,
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ZCAP_DAC_OVERRIDE, /* for now needed to write to /proc/sys/net/ipv4/<if>/send_redirect */
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};
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struct zebra_privs_t nhrpd_privs = {
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#if defined(FRR_USER) && defined(FRR_GROUP)
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.user = FRR_USER,
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.group = FRR_GROUP,
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#endif
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#ifdef VTY_GROUP
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.vty_group = VTY_GROUP,
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#endif
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.caps_p = _caps_p,
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.cap_num_p = ZEBRA_NUM_OF(_caps_p),
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};
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static void parse_arguments(int argc, char **argv)
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{
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int opt;
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while (1) {
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opt = frr_getopt(argc, argv, 0);
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if(opt < 0) break;
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switch (opt) {
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case 0:
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break;
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default:
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frr_help_exit(1);
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break;
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}
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}
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}
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static void nhrp_sigusr1(void)
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{
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zlog_rotate();
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}
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static void nhrp_request_stop(void)
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{
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debugf(NHRP_DEBUG_COMMON, "Exiting...");
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frr_early_fini();
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nhrp_shortcut_terminate();
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nhrp_nhs_terminate();
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nhrp_zebra_terminate();
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vici_terminate();
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evmgr_terminate();
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nhrp_vc_terminate();
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vrf_terminate();
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debugf(NHRP_DEBUG_COMMON, "Done.");
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frr_fini();
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exit(0);
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}
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static struct quagga_signal_t sighandlers[] = {
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{ .signal = SIGUSR1, .handler = &nhrp_sigusr1, },
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{ .signal = SIGINT, .handler = &nhrp_request_stop, },
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{ .signal = SIGTERM, .handler = &nhrp_request_stop, },
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};
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FRR_DAEMON_INFO(nhrpd, NHRP,
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.vty_port = NHRP_VTY_PORT,
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.proghelp = "Implementation of the NHRP routing protocol.",
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.signals = sighandlers,
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.n_signals = array_size(sighandlers),
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.privs = &nhrpd_privs,
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)
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int main(int argc, char **argv)
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{
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frr_preinit(&nhrpd_di, argc, argv);
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frr_opt_add("", longopts, "");
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parse_arguments(argc, argv);
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/* Library inits. */
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master = frr_init();
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vrf_init(NULL, NULL, NULL, NULL);
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nhrp_interface_init();
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resolver_init();
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/* Run with elevated capabilities, as for all netlink activity
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* we need privileges anyway. */
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nhrpd_privs.change(ZPRIVS_RAISE);
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netlink_init();
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evmgr_init();
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nhrp_vc_init();
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nhrp_packet_init();
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vici_init();
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nhrp_zebra_init();
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nhrp_shortcut_init();
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nhrp_config_init();
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frr_config_fork();
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frr_run(master);
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return 0;
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}
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