IPv4/IPv6 integrated socket code.

1 files changed, 61 insertions, 14 deletions

diff --git a/sysdep/unix/unix.h b/sysdep/unix/unix.h
index 346adcf2..518713bc 100644
--- a/sysdep/unix/unix.h
+++ b/sysdep/unix/unix.h
@@ -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);