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bird/sysdep/unix/unix.h
Maria Jan Matejka f93315c417 Config: Make the parser and lexer reentrant.
This is part of the multithreading journey. The parser and lexer were
using loads of global variables and all of these are now packed into
struct cf_context and others.

Note that the config API has changed:

* cfg_alloc[zu]?(size) is now cf_alloc[zu]?(ctx, size)
* cf_error(msg, ...) is now cf_error(ctx, msg, ...)
* config_parse() and cli_parse() are now called differently
* there is a brand new CF_CTX section in *.Y files which participates
  in struct cf_context construction
2018-09-14 14:44:45 +02:00

133 lines
3.4 KiB
C

/*
* BIRD -- Declarations Common to Unix Port
*
* (c) 1998--2000 Martin Mares <mj@ucw.cz>
*
* Can be freely distributed and used under the terms of the GNU GPL.
*/
#ifndef _BIRD_UNIX_H_
#define _BIRD_UNIX_H_
#include <sys/socket.h>
struct pool;
struct iface;
struct birdsock;
/* main.c */
extern char *bird_name;
void async_config(void);
void async_dump(void);
void async_shutdown(void);
void cmd_check_config(char *name);
void cmd_reconfig(char *name, int type, uint timeout);
void cmd_reconfig_confirm(void);
void cmd_reconfig_undo(void);
void cmd_shutdown(void);
#define UNIX_DEFAULT_CONFIGURE_TIMEOUT 300
#define UNIX_DEFAULT_LATENCY_LIMIT (1 S_)
#define UNIX_DEFAULT_WATCHDOG_WARNING (5 S_)
/* io.c */
#define ERR(c) do { s->err = c; return -1; } while (0)
#define ERR2(c) do { s->err = c; goto err; } while (0)
#define ERR_MSG(c) do { errno = 0; s->err = c; return -1; } while (0)
#define SOCKADDR_SIZE 32
typedef struct sockaddr_bird {
struct sockaddr sa;
char padding[SOCKADDR_SIZE - sizeof(struct sockaddr)];
} sockaddr;
/* This is sloppy hack, it should be detected by configure script */
/* Linux systems have it defined so this is definition for BSD systems */
#ifndef s6_addr32
#define s6_addr32 __u6_addr.__u6_addr32
#endif
static inline ip_addr ipa_from_in4(struct in_addr a)
{ return ipa_from_u32(ntohl(a.s_addr)); }
static inline ip_addr ipa_from_in6(struct in6_addr a)
{ return ipa_build6(ntohl(a.s6_addr32[0]), ntohl(a.s6_addr32[1]), ntohl(a.s6_addr32[2]), ntohl(a.s6_addr32[3])); }
static inline ip_addr ipa_from_sa4(sockaddr *sa)
{ return ipa_from_in4(((struct sockaddr_in *) sa)->sin_addr); }
static inline ip_addr ipa_from_sa6(sockaddr *sa)
{ return ipa_from_in6(((struct sockaddr_in6 *) sa)->sin6_addr); }
static inline ip_addr ipa_from_sa(sockaddr *sa)
{
switch (sa->sa.sa_family)
{
case AF_INET: return ipa_from_sa4(sa);
case AF_INET6: return ipa_from_sa6(sa);
default: return IPA_NONE;
}
}
static inline struct in_addr ipa_to_in4(ip_addr a)
{ return (struct in_addr) { htonl(ipa_to_u32(a)) }; }
static inline struct in_addr ip4_to_in4(ip4_addr a)
{ return (struct in_addr) { htonl(ip4_to_u32(a)) }; }
static inline struct in6_addr ipa_to_in6(ip_addr a)
{ return (struct in6_addr) { .s6_addr32 = { htonl(_I0(a)), htonl(_I1(a)), htonl(_I2(a)), htonl(_I3(a)) } }; }
void sockaddr_fill(sockaddr *sa, int af, ip_addr a, struct iface *ifa, uint port);
int sockaddr_read(sockaddr *sa, int af, ip_addr *a, struct iface **ifa, uint *port);
#ifndef SUN_LEN
#define SUN_LEN(ptr) ((size_t) (((struct sockaddr_un *) 0)->sun_path) + strlen ((ptr)->sun_path))
#endif
extern volatile int async_config_flag;
extern volatile int async_dump_flag;
extern volatile int async_shutdown_flag;
void io_init(void);
void io_loop(void);
void io_log_dump(void);
int sk_open_unix(struct birdsock *s, char *name);
void *tracked_fopen(struct pool *, char *name, char *mode);
void test_old_bird(char *path);
/* conf.c */
extern char *config_name;
struct config *read_config(void);
/* krt.c bits */
void krt_io_init(void);
/* log.c */
extern int debug_flag;
void main_thread_init(void);
void log_init_debug(char *); /* Initialize debug dump to given file (NULL=stderr, ""=off) */
void log_switch(int debug, list *l, char *); /* Use l=NULL for initial switch */
struct log_config {
node n;
uint mask; /* Classes to log */
void *fh; /* FILE to log to, NULL=syslog */
int terminal_flag;
};
#endif