X-Git-Url: http://git.tuebingen.mpg.de/?a=blobdiff_plain;f=net.h;h=e9974d1c342316c4f6073b5f4afb8895143dc5d6;hb=eecc102ad0abeb0335fe994bb72031a15b9090d7;hp=66bf875568eadd9fe07587e31edc5539e472575d;hpb=e9e826f4fb415c4225ff5934fe42572ffa3b5ebc;p=paraslash.git

diff --git a/net.h b/net.h
index 66bf8755..e9974d1c 100644
--- a/net.h
+++ b/net.h
@@ -17,19 +17,52 @@
 #define UNIX_PATH_MAX 108
 #endif
 
-/** \cond Userland defines for Linux DCCP support. */
+/* Userland defines for Linux DCCP support. */
+
 #ifndef IPPROTO_DCCP
-#define IPPROTO_DCCP	33	/* IANA assigned value */
-#define SOCK_DCCP	6	/* Linux socket type   */
-#define SOL_DCCP	269	/* Linux socket level  */
-/* Per-connection CCID support (since v2.6.30-rc1) */
-#define DCCP_SOCKOPT_AVAILABLE_CCIDS	12	/* List of supported CCIDs */
-#define DCCP_SOCKOPT_CCID		13	/* Sets both TX/RX CCID    */
-#define DCCP_SOCKOPT_TX_CCID		14	/* Set/get the TX CCID     */
-#define DCCP_SOCKOPT_RX_CCID		15	/* Set/get the RX CCID     */
+#define IPPROTO_DCCP 33 /**< IANA assigned value. */
+#endif
+
+#ifndef SOCK_DCCP
+#define SOCK_DCCP 6 /**< Linux socket type. */
+#endif
+
+#ifndef DCCP_SOCKOPT_RX_CCID
+/** Per-connection CCID support (set/get the RX CCID, since v2.6.30-rc1). */
+#define DCCP_SOCKOPT_RX_CCID 15
+#endif
+
+#ifndef SOL_DCCP
+#define SOL_DCCP 269 /**< Linux socket level. */
+#endif
+
+#ifndef DCCP_SOCKOPT_AVAILABLE_CCIDS
+#define DCCP_SOCKOPT_AVAILABLE_CCIDS 12 /**< List of supported CCIDs. */
 #endif
-/** \endcond */
 
+#ifndef DCCP_SOCKOPT_CCID
+#define DCCP_SOCKOPT_CCID 13 /**< Sets both TX/RX CCID. */
+#endif
+
+#ifndef DCCP_SOCKOPT_TX_CCID
+#define DCCP_SOCKOPT_TX_CCID 14 /**< Set/get the TX CCID. */
+#endif
+
+/**
+ * Flowopts: Transport-layer independent encapsulation of socket options
+ *           that need to be registered prior to setting up a connection.
+ */
+struct flowopts;
+
+extern struct flowopts *flowopt_new(void);
+extern void flowopt_add(struct flowopts *fo, int level, int opt,
+			char *name, const void *val, int len);
+extern void flowopt_add_bool(struct flowopts *fo, int lev, int opt,
+			     char *optname, bool on_or_off);
+/** Flowopt shortcut macros */
+#define OPT_ADD(fo, lev, opt, val, len)	flowopt_add(fo, lev, opt, #opt, val, len)
+#define OPT_ENABLE(fo, lev, opt)	flowopt_add_bool(fo, lev, opt, #opt, 1)
+#define OPT_DISABLE(fo, lev, opt)	flowopt_add_bool(fo, lev, opt, #opt, 0)
 
 /**
  * Functions to parse and validate (parts of) URLs.
@@ -71,8 +104,16 @@ _static_inline_ bool is_valid_ipv6_address(const char *address)
 /**
  * Generic socket creation (passive and active sockets).
  */
-extern int makesock(unsigned l3type, unsigned l4type, int passive,
-	            const char *host, unsigned short port_number);
+extern int makesock(unsigned l4type, bool passive,
+		    const char *host, uint16_t port_number,
+		    struct flowopts *fo);
+
+static inline int para_connect_simple(unsigned l4type,
+				      const char *host, uint16_t port)
+{
+	return makesock(l4type, 0, host, port, NULL);
+}
+
 extern struct in_addr extract_v4_addr(const struct sockaddr_storage *ss);
 
 /**
@@ -80,7 +121,12 @@ extern struct in_addr extract_v4_addr(const struct sockaddr_storage *ss);
  */
 /** How many pending connections queue of a listening server will hold. */
 #define BACKLOG	10
-extern int para_listen(unsigned l3type, unsigned l4type, unsigned short port);
+extern int para_listen(unsigned l4type, uint16_t port, struct flowopts *fo);
+
+static inline int para_listen_simple(unsigned l4type, uint16_t port)
+{
+	return para_listen(l4type, port, NULL);
+}
 
 /** Pretty-printing of IPv4/6 socket addresses */
 extern char *local_name(int sockfd);