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bird2 ver 2.0.7

    1: /*
    2:  *	BIRD -- Declarations Common to Unix Port
    3:  *
    4:  *	(c) 1998--2000 Martin Mares <mj@ucw.cz>
    5:  *
    6:  *	Can be freely distributed and used under the terms of the GNU GPL.
    7:  */
    8: 
    9: #ifndef _BIRD_UNIX_H_
   10: #define _BIRD_UNIX_H_
   11: 
   12: #include <sys/socket.h>
   13: #include <signal.h>
   14: 
   15: struct pool;
   16: struct iface;
   17: struct birdsock;
   18: struct rfile;
   19: 
   20: /* main.c */
   21: 
   22: extern char *bird_name;
   23: void async_config(void);
   24: void async_dump(void);
   25: void async_shutdown(void);
   26: void cmd_check_config(char *name);
   27: void cmd_reconfig(char *name, int type, uint timeout);
   28: void cmd_reconfig_confirm(void);
   29: void cmd_reconfig_undo(void);
   30: void cmd_reconfig_status(void);
   31: void cmd_shutdown(void);
   32: void cmd_graceful_restart(void);
   33: 
   34: #define UNIX_DEFAULT_CONFIGURE_TIMEOUT	300
   35: 
   36: #define UNIX_DEFAULT_LATENCY_LIMIT	(1 S_)
   37: #define UNIX_DEFAULT_WATCHDOG_WARNING	(5 S_)
   38: 
   39: /* io.c */
   40: 
   41: #define ERR(c) do { s->err = c; return -1; } while (0)
   42: #define ERR2(c) do { s->err = c; goto err; } while (0)
   43: #define ERR_MSG(c) do { errno = 0; s->err = c; return -1; } while (0)
   44: 
   45: 
   46: #define SOCKADDR_SIZE 32
   47: 
   48: typedef struct sockaddr_bird {
   49:   struct sockaddr sa;
   50:   char padding[SOCKADDR_SIZE - sizeof(struct sockaddr)];
   51: } sockaddr;
   52: 
   53: 
   54: 
   55: /* This is sloppy hack, it should be detected by configure script */
   56: /* Linux systems have it defined so this is definition for BSD systems */
   57: #ifndef s6_addr32
   58: #define s6_addr32 __u6_addr.__u6_addr32
   59: #endif
   60: 
   61: 
   62: static inline ip_addr ipa_from_in4(struct in_addr a)
   63: { return ipa_from_u32(ntohl(a.s_addr)); }
   64: 
   65: static inline ip_addr ipa_from_in6(struct in6_addr a)
   66: { return ipa_build6(ntohl(a.s6_addr32[0]), ntohl(a.s6_addr32[1]), ntohl(a.s6_addr32[2]), ntohl(a.s6_addr32[3])); }
   67: 
   68: static inline ip_addr ipa_from_sa4(sockaddr *sa)
   69: { return ipa_from_in4(((struct sockaddr_in *) sa)->sin_addr); }
   70: 
   71: static inline ip_addr ipa_from_sa6(sockaddr *sa)
   72: { return ipa_from_in6(((struct sockaddr_in6 *) sa)->sin6_addr); }
   73: 
   74: static inline ip_addr ipa_from_sa(sockaddr *sa)
   75: {
   76:   switch (sa->sa.sa_family)
   77:   {
   78:   case AF_INET:		return ipa_from_sa4(sa);
   79:   case AF_INET6:	return ipa_from_sa6(sa);
   80:   default:		return IPA_NONE;
   81:   }
   82: }
   83: 
   84: static inline struct in_addr ipa_to_in4(ip_addr a)
   85: { return (struct in_addr) { htonl(ipa_to_u32(a)) }; }
   86: 
   87: static inline struct in_addr ip4_to_in4(ip4_addr a)
   88: { return (struct in_addr) { htonl(ip4_to_u32(a)) }; }
   89: 
   90: static inline struct in6_addr ipa_to_in6(ip_addr a)
   91: { return (struct in6_addr) { .s6_addr32 = { htonl(_I0(a)), htonl(_I1(a)), htonl(_I2(a)), htonl(_I3(a)) } }; }
   92: 
   93: void sockaddr_fill(sockaddr *sa, int af, ip_addr a, struct iface *ifa, uint port);
   94: int sockaddr_read(sockaddr *sa, int af, ip_addr *a, struct iface **ifa, uint *port);
   95: 
   96: 
   97: #ifndef SUN_LEN
   98: #define SUN_LEN(ptr) ((size_t) (((struct sockaddr_un *) 0)->sun_path) + strlen ((ptr)->sun_path))
   99: #endif
  100: 
  101: extern volatile sig_atomic_t async_config_flag;
  102: extern volatile sig_atomic_t async_dump_flag;
  103: extern volatile sig_atomic_t async_shutdown_flag;
  104: 
  105: void io_init(void);
  106: void io_loop(void);
  107: void io_log_dump(void);
  108: int sk_open_unix(struct birdsock *s, char *name);
  109: struct rfile *rf_open(struct pool *, char *name, char *mode);
  110: void *rf_file(struct rfile *f);
  111: int rf_fileno(struct rfile *f);
  112: void test_old_bird(char *path);
  113: 
  114: /* krt.c bits */
  115: 
  116: void krt_io_init(void);
  117: 
  118: /* log.c */
  119: 
  120: void main_thread_init(void);
  121: void log_init_debug(char *);		/* Initialize debug dump to given file (NULL=stderr, ""=off) */
  122: void log_switch(int initial, list *l, char *);
  123: 
  124: struct log_config {
  125:   node n;
  126:   uint mask;				/* Classes to log */
  127:   void *fh;				/* FILE to log to, NULL=syslog */
  128:   struct rfile *rf;			/* Resource for log file */
  129:   char *filename;			/* Log filename */
  130:   char *backup;				/* Secondary filename (for log rotation) */
  131:   off_t pos;				/* Position/size of current log */
  132:   off_t limit;				/* Log size limit */
  133:   int terminal_flag;
  134: };
  135: 
  136: #endif