X-Git-Url: http://git.tuebingen.mpg.de/?a=blobdiff_plain;ds=sidebyside;f=net.h;h=831cd3b8b72f2b3a7f90592c64f6a5f725c4b7d7;hb=a5927501e41fa3fca2975452617474e78ffecc48;hp=88b8d431ed6453e11ddfa7ac021ee84f8e54c185;hpb=6d279099a23b2ddc99c8888f2e5f2dd9c0755e7b;p=paraslash.git

diff --git a/net.h b/net.h
index 88b8d431..831cd3b8 100644
--- a/net.h
+++ b/net.h
@@ -31,6 +31,22 @@
 /** \endcond */
 
 
+/**
+ * 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 +87,16 @@ _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 +104,12 @@ 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);
@@ -100,3 +129,10 @@ int create_remote_socket(const char *name);
 int recv_cred_buffer(int, char *, size_t);
 ssize_t send_cred_buffer(int, char*);
 int recv_pattern(int fd, const char *pattern, size_t bufsize);
+
+/**
+ * Functions and definitions to support \p IPPROTO_DCCP
+ */
+/** Hardcoded maximum number of separate CCID modules compiled into a host */
+#define DCCP_MAX_HOST_CCIDS	20
+extern const uint8_t *dccp_available_ccids(uint8_t *ccids, uint8_t *nccids);