mirror of
https://gitlab.nic.cz/labs/bird.git
synced 2024-11-17 16:48:43 +00:00
24493e9169
The C11 specification allows only sig_atomic_t and _Atomic variable access. All other accesses to global variables are undefined behavior. Using int was probably OK on x86 and x86_64; yet there were some reports from other architectures (especially some MIPS) that in rare cases, after issuing SIGHUP, BIRD did strange things.
137 lines
3.7 KiB
C
137 lines
3.7 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>
|
|
#include <signal.h>
|
|
|
|
struct pool;
|
|
struct iface;
|
|
struct birdsock;
|
|
struct rfile;
|
|
|
|
/* 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_reconfig_status(void);
|
|
void cmd_shutdown(void);
|
|
void cmd_graceful_restart(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 sig_atomic_t async_config_flag;
|
|
extern volatile sig_atomic_t async_dump_flag;
|
|
extern volatile sig_atomic_t 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);
|
|
struct rfile *rf_open(struct pool *, char *name, char *mode);
|
|
void *rf_file(struct rfile *f);
|
|
int rf_fileno(struct rfile *f);
|
|
void test_old_bird(char *path);
|
|
|
|
/* krt.c bits */
|
|
|
|
void krt_io_init(void);
|
|
|
|
/* log.c */
|
|
|
|
void main_thread_init(void);
|
|
void log_init_debug(char *); /* Initialize debug dump to given file (NULL=stderr, ""=off) */
|
|
void log_switch(int initial, list *l, char *);
|
|
|
|
struct log_config {
|
|
node n;
|
|
uint mask; /* Classes to log */
|
|
void *fh; /* FILE to log to, NULL=syslog */
|
|
struct rfile *rf; /* Resource for log file */
|
|
char *filename; /* Log filename */
|
|
char *backup; /* Secondary filename (for log rotation) */
|
|
off_t pos; /* Position/size of current log */
|
|
off_t limit; /* Log size limit */
|
|
int terminal_flag;
|
|
};
|
|
|
|
#endif
|