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IPv4/IPv6 integrated socket code.

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This commit is contained in:
Ondrej Zajicek
2014-05-18 11:42:26 +02:00
parent 1149aa977d
commit 05476c4d04
16 changed files with 1361 additions and 1267 deletions
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75
sysdep/unix/unix.h
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@@ -12,6 +12,8 @@
#include <sys/socket.h>
struct pool;
struct iface;
struct birdsock;
/* main.c */
@@ -27,36 +29,81 @@ void cmd_shutdown(void);
#define UNIX_DEFAULT_CONFIGURE_TIMEOUT 300
/* io.c */
volatile int async_config_flag;
volatile int async_dump_flag;
volatile int async_shutdown_flag;
#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;
#ifdef IPV6
#define BIRD_PF PF_INET6
#define BIRD_AF AF_INET6
typedef struct sockaddr_in6 sockaddr;
static inline int sa_family_check(sockaddr *sa) { return sa->sin6_family == AF_INET6; }
#define _MI6(x1,x2,x3,x4) _MI(x1, x2, x3, x4)
#define ipa_is_link_local(x) ipa_has_link_scope(x)
#define ipa_from_sa(x) ipa_from_sa6(x)
#define ipa_from_u32(x) _MI6(0,0,0xffff,x)
#define ipa_to_u32(x) _I3(x)
#else
#define BIRD_PF PF_INET
#define BIRD_AF AF_INET
typedef struct sockaddr_in sockaddr;
static inline int sa_family_check(sockaddr *sa) { return sa->sin_family == AF_INET; }
#define _I0(X) 0
#define _I1(X) 0
#define _I2(X) 0
#define _I3(X) 0
#define _MI6(x1,x2,x3,x4) IPA_NONE
#define ipa_is_link_local(x) 0
#define ipa_from_sa(x) ipa_from_sa4(x)
#endif
/* 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 _MI6(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 struct in_addr ipa_to_in4(ip_addr a)
{ return (struct in_addr) { htonl(ipa_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
struct birdsock;
struct iface;
volatile int async_config_flag;
volatile int async_dump_flag;
volatile int async_shutdown_flag;
void io_init(void);
void io_loop(void);
void fill_in_sockaddr(sockaddr *sa, ip_addr a, struct iface *ifa, unsigned port);
void get_sockaddr(sockaddr *sa, ip_addr *a, struct iface **ifa, unsigned *port, int check);
void sk_open_unix(struct birdsock *s, char *name);
int sk_open_unix(struct birdsock *s, char *name);
void *tracked_fopen(struct pool *, char *name, char *mode);
void test_old_bird(char *path);