mirror of
https://gitlab.nic.cz/labs/bird.git
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126 lines
2.0 KiB
C
126 lines
2.0 KiB
C
/*
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* BIRD Internet Routing Daemon -- Unix Entry Point
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*
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* (c) 1998 Martin Mares <mj@ucw.cz>
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*
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* Can be freely distributed and used under the terms of the GNU GPL.
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*/
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#include <stdio.h>
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#include <fcntl.h>
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#include <unistd.h>
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#include <sys/signal.h>
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#include "nest/bird.h"
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#include "lib/lists.h"
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#include "lib/resource.h"
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#include "lib/socket.h"
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#include "nest/route.h"
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#include "nest/protocol.h"
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#include "nest/iface.h"
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#include "conf/conf.h"
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#include "unix.h"
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#include "krt.h"
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/*
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* Debugging
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*/
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static void
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handle_sigusr(int sig)
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{
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debug("SIGUSR1: Debugging dump...\n\n");
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sk_dump_all();
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tm_dump_all();
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if_dump_all();
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neigh_dump_all();
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rta_dump_all();
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rt_dump_all();
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protos_dump_all();
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debug("\n");
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}
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static void
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signal_init(void)
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{
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static struct sigaction sa;
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sa.sa_handler = handle_sigusr;
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sa.sa_flags = SA_RESTART;
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if (sigaction(SIGUSR1, &sa, NULL) < 0)
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die("sigaction: %m");
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signal(SIGPIPE, SIG_IGN);
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}
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/*
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* Reading the Configuration
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*/
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static int conf_fd;
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static int
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cf_read(byte *dest, unsigned int len)
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{
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int l = read(conf_fd, dest, len);
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if (l < 0)
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cf_error("Read error");
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return l;
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}
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static void
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read_config(void)
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{
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cf_lex_init_tables();
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cf_allocate();
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conf_fd = open(PATH_CONFIG, O_RDONLY);
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if (conf_fd < 0)
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die("Unable to open configuration file " PATH_CONFIG ": %m");
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protos_preconfig();
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cf_read_hook = cf_read;
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cf_lex_init(1);
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cf_parse();
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add_tail(&protocol_list, &proto_unix_kernel.n); /* FIXME: Must be _always_ the last one */
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protos_postconfig();
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}
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/*
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* Hic Est main()
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*/
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int
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main(void)
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{
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log(L_INFO "Launching BIRD -1.-1-pre-omega...");
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log_init_debug(NULL);
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debug("Initializing.\n");
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resource_init();
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io_init();
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rt_init();
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if_init();
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protos_build();
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protos_init();
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debug("Reading configuration file.\n");
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read_config();
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signal_init();
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scan_if_init();
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auto_router_id();
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protos_start();
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handle_sigusr(0);
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debug("Entering I/O loop.\n");
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io_loop();
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die("I/O loop died");
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}
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